Search Results — 2000 specimen records retrieved (1612 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCR171349  Abies George K. Helmkamp, E. A. Helmkamp 2005-10-1 9995 Placer Northern Sierra Nevada Mtns., NW of Lake Tahoe; Junction of Bear Creek Dr. and Big John Road (c. 2.2 miles west of Calif. Highway 89 and just south of Alpine Meadows Road) 2015 Comment
  UCD43915  Abies concolor C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-9 1281 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  RSA1848  Abies magnifica C. B. Wolf 1930-10-10 1726 Placer Coldstream Canyon, 5 miles from Truckee. 1982 Comment
  UCD117054  Acer macrophyllum K. H. Traver 1969-5-24 39 Placer 1 mile north of Forest Hill. Comment
  UCD164635  Acer macrophyllum Brandi Sorensen 1995-6-1 11 Placer .73 kilometers northwest of Colfax. 671 Comment
  SEINET7894012  Acer macrophyllum J. Ridley 1959-4-19 24 Placer 1 mi. east of Baxter along small stream bank on south side of Highway 40 1219 Comment
  CHSC10685  Achillea millefolium Lowell Ahart 1972-8-7 Placer French Meadows. 1524 Comment
  UC565936  Achillea millefolium H. S. Yates 1934-6-29 3882 Placer near Brockway 1920 Comment
  UCD43244  Achillea millefolium C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-13 613 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  SEINET11842679  Achillea millefolium subsp. lanulosa J. H. Nishida 1985-1 783 Placer Homewood 1829 Comment
  CAS-BOT-BC210683  Achnatherum lemmonii John Thomas Howell; Gordon H. True 1968-6-9 44518 Placer Alta 1066 Comment
  CAS-BOT-BC210743  Achnatherum nelsonii W. R. Dudley 1900-6-28 s.n. Placer Tallac Comment
  UCD51018  Achnatherum occidentale G. L. Stebbins Jr. Date Unknown 3172 Placer along U.S. Highway no. 40. 1 mile west of Cisco Grove. 1706 Comment
  UCD22219  Achnatherum occidentale subsp. occidentale Beth Lowe Corbin 1982-8-10 300 Placer 1 1/4 mile WNW of Onion Creek Campground. SE facing slope, 30% incline. Uncommon. Full sun. Open, granitic outcrop in montane chaparral. Bunchgrass, forming small tufts. 1981 Comment
  SEINET7249210  Acmispon americanus var. americanus G. K. Helmkamp, E. A. Helmkamp 2012-1 19917 Placer Northern Sierra Nevada Mountains; junction of Nyack Road and I-80 in the Emigrant Gap area 1652 Comment
  UCD22015  Acmispon americanus var. americanus Beth Lowe Corbin 1982-8-9 273 Placer 1/4 mile SW of Onion Creek campground. In fine, sandy soil. Disturbed open area in White Fir forest. Prostrate herb. Flowers white. Full sun. South facing slope, 10% incline. Locally common. 1859 Comment
  CAS-BOT-BC438835  Acmispon argophyllus var. fremontii George K. Helmkamp; Mary Alice Barnes 2013-5-3 20502 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road at the north side of the bridge over West Fork of North Fork American River, 5.2 mi. east (87 deg. ) of Forest Hill. 422 Comment
  SJSU3621  Acmispon micranthus C. W. Sharsmith 1962-5-27 6912 Placer near Clipper Gap c. 6 mi N of Auburn on Donner Summit Rd (Hwy 40) 512 Comment
  CHSC91778  Acmispon nevadensis G. F. Hrusa; J. Glazner 2000-7-1 15626 Placer Northern Sierra Nevada. Summit Village, Truckee. Along Donner Creek adjacent to Hwy 89. UTM: 10S, 43571 N, 07411 E. [Lat./long. on label is '39 22 N; 120 15 W']. 1844 Comment
  SEINET5337521  Aconitum columbianum A. A. Heller 1909-7-16 9849 Placer Summit. 2134 Comment
  CAS-BOT-BC391462  Aconitum columbianum subsp. columbianum Mrs. Chas. E. Miller 1916-8-30 s.n. Placer Emigrant Gap Comment
  CAS-BOT-BC391463  Aconitum columbianum subsp. columbianum Geo. B. Grant 1906-7-15 7009 Placer Tahoe Taern, Lake Tahoe Comment
  CAS-BOT-BC412607  Aconogonon alaskanum Elizabeth Parsons Hawver No date on label s.n. Placer Lake Tahoe Region Comment
  CAS-BOT-BC412850  Aconogonon davisiae Alice Eastwood 1909-1-1 290 Placer Lake Tahoe Region. Deer Park Comment
  UCD22141  Aconogonon phytolaccifolium Rex Palmer 1979-7-10 N 526 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22144  Aconogonon phytolaccifolium Rex Palmer 1979-7-25 N 674 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC29250  Acroptilon repens Beecher Crampton 1972-7-26 8851 Placer Carpenter Flat east of Emigrant Gap. Along Laing's Road. Comment
  CDA11238  Actaea rubra G. F. Hrusa, T. Scarano 1994-8-31 11914 Placer Sierra Nevada; Duncan Creek at base of grade below French Meadows Reservoir, 1/4 m. upstream from bridge. Comment
  CHSC79552  Actaea rubra G. F. Hrusa; T. Scarano 1994-8-31 11914 Placer Sierra Nevada. Duncan Creek at base of grade below French Meadows Reservoir, 1/4 m. upstream from bridge. [Lat./long. on label is '39 8 N; 120 29 W']. 1500 Comment
  UCD112618  Adenostoma fasciculatum G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10716 Placer Northern Sierra Nevada Mountains foothills. 0.2 mile N of the Forest Hill Road on unnamed road to Lake Clementine (general area NE of Auburn on Forest Hill Divide). 487 Comment
  RSA687746  Adiantum aleuticum May N. Ackley 1925-06 2 Placer Bear Valley Comment
  SEINET5338294  Adiantum capillus-veneris K. Thorne, B. F. Harrison 755 Placer 2 miles east of Auburn, Middle fork of American River, south side of river, steep hillside cliffs, shaded woods. Comment
  SEINET5338310  Adiantum pedatum P. B. Kennedy 1901-8-21 427 Placer Talbots Home Camp, 7 miles from French Meadows Cal. Comment
  CAS-BOT-BC9066  Aegilops triuncialis K. L. Stark 1971-6-8 s.n. Placer West side of Fiddyment Road, 0.1 mile south of Phillip Road, ca. 5 miles northeast of Roseville Comment
  CAS-BOT-BC228605  Aesculus californica George K. Helmkamp; E. A. Helmkamp 2011-5-6 17216 Placer Eastern Edge of Sacramento Valley: Camp Far West Road, 0.1 mile west of its junction with McCourtney Road, c. 6.3 mi. NE (67 deg. ) of Wheatland 58 Comment
  UCR218227  Aesculus californica George K. Helmkamp, E. A. Helmkamp 2010-6-26 16410 Placer Sierra Nevada Mountains Foothills, Yankee Jims road along Brush Creek in Bunch Canyon, 2.8 miles southeast of its junction with Canyon Way, 2.75 mi. ENE (74 deg. ) of Applegate 476 Comment
  UCD128552  Ageratina occidentalis A. T. Leiser 1972-8-14 s.n. Placer Alpine Meadows. Comment
  CDA15945  Agoseris grandiflora G. F. Hrusa, J. Glazner 1999-7-17 15154 a Placer Martis Valley; Martis Valley, off Hwy 267, S of Truckee. 1889 Comment
  UC194732  Agoseris heterophylla var. cryptopleura C. F. Sonne 1891-5-17 Placer Colfax Comment
  JEPS126299  Agoseris heterophylla var. heterophylla Steve Matson 2003-6-9 797 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; north of Highway 267 and west of Martis Creek, along Airpot Creek. Comment
  POM260172  Agoseris retrorsa C. L. Hitchcock 1940-5-7 6325 Placer 1 mile west of Baxter Comment
  UCD128657  Agoseris retrorsa A. S. Crafts 1926-5-1 794 Placer American River Canyon. Comment
  CDA1687  Agropyron desertorum T. C. Fuller 1964-9-1 12574 Placer Sierra Nevada; 0.1 mile west of Blue Canyon Road, north side of Interstate 80 freeway from Donner Summit. Comment
  SACT000045  Agropyron intermedium var. intermedium D. Meyer 1983-9-10 Placer Near parking lot. Moist stream bank and meadow. 1879.0 Comment
  SACT000052  Agropyron intermedium var. trichophorum Michael Baad 1976-7-17 Placer Open brushy slopes on granite 2133.6 Comment
  SACT000080  Agropyron trachycaulum Michael Baad 1983-7-23 Placer 1767.84 Comment
  UCR201916  Agrostis George K. Helmkamp, E. A. Helmkamp 2008-8-20 14036 Placer Northern Sierra Nevada Mountains, Soda Springs Road, 1.9 miles south of its junction with Donner Pass Road and beside (completely dry) Serena Creek 2107 Comment
  UCD51779  Agrostis avenacea Beecher Crampton 1957-5-7 3989 Placer 2 miles north of Lincoln. Comment
  CAS-BOT-BC127106  Agrostis exarata 12891 Placer Summit Station. 2121 Comment
  CAS-BOT-BC127108  Agrostis exarata 12891 Placer Summit Station. 2121 Comment
  SACT000099  Agrostis exarata D. Meyer 1983-7-24 Placer Sacramento Rd North of I80 Dutch Flat exit. Moist, shady roadside 1036.32 Comment
  SACT000102  Agrostis exarata D. Meyer 1984-8-4 Placer Meadow - mostly dry with a few springs 1454.0 Comment
  SACT000111  Agrostis exarata Michael Baad 1976-8-25 Placer South Face of Scott Peak and SE face of Ward Peak from road to chairlift terminus. Open meadows with scattered red fir and western white pine. 2133.6 Comment
  UC576366  Agrostis exarata H. S. Yates 1936-8-9 5987 Placer two mi sw Martis Peak; Truckee Quad. 2286 Comment
  UCD33607  Agrostis exarata Beecher Crampton 1970-6-26 8640 Placer Placer County, Gold Run. 914 Comment
  UCD36660  Agrostis exarata Beecher Crampton 1955-6-15 2889 Placer Placer County, 2.5 miles north of Yankee Jims, at junction of Iowa Hill and Forest Hill Road. 609 Comment
  UCR146677  Agrostis exarata var. pacifica Beecher Crampton 1955-6-15 2915 Placer Sierra Nevada Mountains, 6 miles west of Forest Hill 457 Comment
  RSA654890  Agrostis gigantea G. Fred Hrusa, J. Glazner 1997-8-3 14038 Placer Corner of Hwy 89 & Squaw Valley Road., 39 deg 12' N, 120 deg 12' W. 2000 Comment
  SEINET2473478 Image available Agrostis idahoensis George K. Helmkamp, E. A. Helmkamp 2010-1 16380 Placer Sierra Nevada Mountains Foothills; junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  SEINET3916446  Agrostis idahoensis Ellen Dean, M. Starbuck; M. Bibbo; J. Poloske 2008-7-20 5247 Placer Donner State Park, newly acquired lands to the SW of Donner Lake. Area south of southern Pacific RR tracks, just south of Lakeview Canyon and north of Emigrant Canyon.; 0 Comment
  UCD42819  Agrostis idahoensis C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-23 185 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  SEINET4341131  Agrostis microphylla B. Crampton 1957-5-7 3998 Placer 1.7 miles east of Lincoln, road to Newcastle Comment
  UCR240963  Agrostis oregonensis George K. Helmkamp, E. A. Helmkamp 2012-9-25 19914 Placer Northern Sierra Nevada Mountains, Blue Canyon Road south of I-80 and 0.1 mile north of the Southern Pacific Railroad crossing 1451 Comment
  UCD53249  Agrostis pallens E. Wilson 1934-8-5 s.n. Placer Near Cisco. Comment
  UCR257727  Agrostis pallens George K. Helmkamp, Ann Kerchner, Amy Barnes 2012-7-23 19523 Placer Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary 2136 Comment
  SACT000149  Agrostis scabra D. Meyer 1984-7-15 Placer 1909.0 Comment
  UC710528  Agrostis scabra John Thomas Howell 1943-7-19 18572 Placer Summit Valley Comment
  UCD36712  Agrostis scabra Beecher Crampton 1955-7-13 2997 Placer Placer County, 3.5 miles east of Baxter, along U.S. Highway 40. Comment
  CAS-BOT-BC138720  Agrostis scabra Saichi Kawahara 1969-7-19 1551 Placer Side of road, Highway 80, 500 feet south of Nevada county line. 1889 Comment
  SACT000173  Agrostis semiverticillata Josephine Van Ess 1977-8-1 Placer streamside 182.9 Comment
  UCD53630  Agrostis stolonifera Beecher Crampton 1975-9-9 9268 Placer Tahoe National Forest, 1/2 mile n.e. Blue Canyon P. O., along edge of Blue Canyon Creek. 1524 Comment
  SACT000191  Agrostis stolonifera var. major D. Meyer 1983-8-7 Placer Hwy 267 4.6 km South of PLacer County line. Roadside wash. 1758.0 Comment
  SACT000195  Agrostis stolonifera var. major D. Meyer 1983-8-7 Placer Tahoe City, along Truckee River, east bank. 1879.0 Comment
  SACT000215  Agrostis tenuis D. Meyer 1984-6-10 Placer 606.0 Comment
  SACT000220  Agrostis tenuis D. Meyer 1983-10-22 Placer searchlight ski run from base up to Olympic lady charilift, cleared most vegetation, trees lining edge of run, straw added for erosion control. 2000.0 Comment
  SACT000211  Agrostis tenuis Josephine Van Ess 1976-6-16 Placer at small stream draining from golf course. wet streambank. 48.8 Comment
  RSA0054101  Agrostis thurberiana G. K. Helmkamp, E. A. Helmkamp 2005-9-30 9936 Placer Northern High Sierra Mountains: Hampshire Rocks Road S of the I-80 Rainbow exit (ca.2 mi E of Cisco Grove). 1805 Comment
  SACT000246  Agrostis variabilis D. Meyer 1983-7-30 Placer Moist areas on both sides of road. 2072.64 Comment
  SACT000249  Agrostis variabilis Michael Baad 1983-8-27 Placer Trail btw Lower Loch Leven Lake and Salmon Lake 2072.64 Comment
  SACT000254  Agrostis variabilis Michael Baad 1976-7-17 Placer west of Alpine Meadows ski area and 6 miles west of Tahoe City. Red fir lodgepole pine forest with opening. 2000.0 Comment
  UCD74169  Agrostis variabilis Jennifer W. Burt; Kate Mawdsley, Belinda Lo 2006-7-25 203 Placer Sugarbowl active ski area, off Hwy 80 near Soda Springs - collected from center of 'Trailblazer' ski run. 2156 Comment
  UCD75707  Agrostis variabilis Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5157 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek, sides of trail. 2124 Comment
  CHSC96428  Aira caryophyllea Lowell Ahart 2007-4-13 13659 Placer Open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln. 43 Comment
  RSA385608  Aira caryophyllea A. A. Beetle 1941-5-26 2710 Placer Near Cisco 915 Comment
  RSA492380  Aira caryophyllea P. Reisentz 1979-5-11 s.n. Placer 1 mile south of Sheridan on Highway 65. Comment
Read comments
Jan 12 2015
  SACT000264  Aira caryophyllea Josephine Van Ess 1976-4-14 Placer along foot path in natural area; open gravel area 97.6 Comment
  SD128639  Aira caryophyllea Darley F. Howe 1948-5-20 1893 Placer Four miles north of Auburn. 456 Comment
  CAS-BOT-BC138376  Aira caryophyllea var. caryophyllea Peter H. Raven 1954-4-16 6605 Placer 7 miles south of Lincoln on road to Roseville. Comment
  OBI60155  Alisma triviale David J. Keil, with Kathleen A. Keil 1999-7-17 28380 Placer Along N Fork of Cosumnes River at Little Canyon Road ford. 457 Comment
  CDA12428  Allium campanulatum G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8557 Ab Placer Lake Tahoe; N side of upper Ward Valley, 4 mi SW of Tahoe City. Comment
  UC495488  Allium campanulatum Merle Randall 1930-6-17 Placer Big Bend Ranger Station Comment
  CAS-BOT-BC464522  Allium campanulatum D. E. Breedlove 1962-6-13 3546 Placer On the western bank of Lake Tahoe along State Hwy. 89, 8.3 miles south of Tahoe City 1889 Comment
  CAS-BOT-BC464523  Allium campanulatum C. F. Sonne 1886-7-18 412 Placer open woods on Truckee River Comment
  UC120013  Allium campanulatum C. F. Sonne 1895-7-25 Placer w slope Washoe Mts. Sierra Nevada Mountains, Washoe Mts. Comment
  POM110112  Allium obtusum var. obtusum Marcus E. Jones 1902-7-9 s.n. Placer Castle Peak Comment
  CAS-BOT-BC132052  Allium peninsulare var. peninsulare David D. Keck 1933-6-1 2431 Placer 2.3 miles southeast of Loomis on back road to Folsom Comment
  CAS-BOT-BC132053  Allium peninsulare var. peninsulare David D. Keck 1933-6-1 2431 Placer 2.3 miles southeast of Loomis on back road to Folsom Comment
  UC1577329  Allium platycaule Baki Kasapligil 1972-7-16 4471 Placer Sierra Nevada south to Placer County Sierra Nevada Comment
  CHSC40964  Allophyllum divaricatum J. D. Jokerst 1984-6-19 2059 Placer North of Long Canyon Cr, E of Blacksmith Flat. 1127 Comment
  POM299441  Allophyllum gilioides L. S. Rose 1941-7-9 41299 Placer Chambers Lodge (McKinney), Lake Tahoe 2100 Comment
  UC880192  Allophyllum gilioides subsp. violaceum A. A. Heller 1917-8-13 12900 Placer base of cliff n. of Summit hotel 2164 Comment
  CDA15645  Allophyllum integrifolium G. F. Hrusa, J. Glazner 1999-7-18 15222 Placer Lake Tahoe; betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. 1889 Comment
  JEPS59485  Allophyllum integrifolium Ezra Brainerd and Viola B. Baird 1915-7-23 233 Placer Tahoe City Sierra Nevada Mts., Tahoe City 1905 Comment
  UC1714458  Allophyllum integrifolium Miss Helen D. Geis 1912-6 210 Placer Deer Park Comment
  UC572283  Allophyllum integrifolium B. Bolt 1934-7-19 148 Placer Tadpole Spring, Tahoe Nat'l Forest Tahoe Nat'l Forest, Colfax Quad., Tadpole Spring 1950 Comment
  UCD109959  Alnus incana subsp. tenuifolia W. J. Barry 1968-3-31 45 Placer State Highway 20 at turnoff to Lake Spaulding. 1463 Comment
  UCD110001  Alnus rhombifolia Beecher Crampton 1960-11-2 5795 Placer 2 miles east of Bowman, along US Hwy. 40. Comment
  UCD55969  Alopecurus saccatus Beecher Crampton 1957-5-7 3988 Placer 2 miles north of Lincoln. Comment
  UCR253812  Ambrosia psilostachya George K. Helmkamp, Elizabeth Helmkamp 2012-10-30 20103 Placer Sacramento Valley, north of William Lane on an unnamed levee road to Markham Ravine 35 Comment
  UC859329  Amelanchier A. A. Heller 1917-6-19 12729 Placer Emigrant Gap 1615 Comment
  JEPS45144 Image available Amelanchier alnifolia var. pumila W. L. Jepson 1918-7-30 7726 Placer near Tahoe City; Lake Tahoe 1920 Comment
  CDA12417  Amelanchier alnifolia var. semiintegrifolia G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8545 Ab Placer Lake Tahoe; N side of upper Ward Valley, 4 mi SW of Tahoe City. Comment
  CAS-BOT-BC136770  Amelanchier utahensis John Thomas Howell 1938-8-2 14010 Placer Near Brockway Comment
  JEPS113106  Amsinckia eastwoodiae Lowell Ahart, Brian Williams 2007-4-13 13670 Placer Waste area about 50 yards north of the Manzanita Cemetery, about 3 1/3 miles north of Lincoln 37 Comment
  UCD119687  Amsinckia intermedia M. H. Mills 1996-4-12 132 Placer At corner of Eden Oaks Circle and Walden Lane, Loomis. 180 Comment
  UC1178280  Amsinckia intermedia Francia Chisaki 1956-4-20 687 Placer on Roseville Road, Antelope Antelope Comment
  UCD77512  Anagallis minima Robert E. Preston 2002-4-26 1786 Placer Ca. 2.7 mi s of Lincoln, in field w of Industrial Ave 36 Comment
  UCD83588  Anaphalis margaritacea Albert Grigarick 2009-8-7 157 Placer Shirley Creek Trail, between Squaw Valley Resort and Shirley Lake. 1938 Comment
  CAS-BOT-BC137821  Andropogon glomeratus var. pumilus Arthur L. Menzies 1962-11-3 s.n. Placer On Highway 49. 0.25 mile west of American River Bridge near Auburn. 213 Comment
  UC1019764  Andropogon glomeratus var. pumilus R. P. Celarier 1953-9-24 A- 2601 -I Placer Comment
  CDA31477  Andropogon virginicus Cliff Hulbert 1957-10-27 Placer Auburn, Ranch of Edward Forester (Rt. , Box 1218) 0 Comment
  UC1153926  Andropogon virginicus var. virginicus Beecher Crampton 1957-5-7 3999 Placer US Hwy 40 ca 3 mi e Auburn (2 mi w of Clipper Gap); w of Clipper Gap Comment
  JEPS72335  Anemone drummondii Gladys L. Smith 1972-6-20 3266 Placer just below summit Ward Peak 2590 Comment
  UCD44523  Angelica C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1889 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
  UC147604  Antennaria argentea Harriet A. Walker 1908-6-23 1358 Placer Blue Canon 1432 Comment
  JEPS126309  Antennaria luzuloides subsp. luzuloides Steve Matson 2000-6-17 432 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; south of Highway 267. Comment
  UCD33741  Anthemis tinctoria Beecher Crampton 1972-7-26 8853 Placer Carpenter Flat east of Emigrant Gap. 1615 Comment
  CAS-BOT-BC137711  Anthoxanthum odoratum A. A. Beetle 1941-5-26 2719 Placer Near Cisco. 914 Comment
  SACT000336  Anthoxanthum odoratum Josephine Van Ess 1977-5-13 Placer 2120 Bald Hill Road. Moist ditch bank. 365.8 Comment
  UCR176282  Anthriscus caucalis George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10427 B Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  POM29613  Antirrhinum vexillocalyculatum subsp. intermedium Marcus E. Jones 1882-7-3 3426 Placer Colfax. Comment
  CAS-BOT-BC218514  Apiaceae Saichi Kawahara 1969-5-24 826 Placer Slope overlooking north fork of the American River, on the Colfax-Iowa Hill Road betwen Dinner Tree and Windy Point 585 Comment
  SDSU2587  Apocynum androsaemifolium Bill Sonle 1942-5-27 3308 Placer Colfax Comment
  SEINET4691687  Apocynum androsaemifolium George K. Helmkamp, E. A. Helmkamp 2010-1 16785 Placer Northern Sierra Nevada Mountains: American Hill road (Forest Route 13), 4.7 miles south of its junction with Foresthill Road and just south of a creek crossing. 1552 Comment
  UCD150266  Apocynum androsaemifolium James A. Neilson Jr. 1971-8-31 2563 Placer Tahoe Basin, King's Beach (Oakwood). 1901 Comment
  UCD22107  Apocynum androsaemifolium Beth Lowe Corbin 1982-8-4 208 Placer 1/4 mile W of Onion Creek Campground. 1889 Comment
  UCD121500  Apocynum androsaemifolium Barbara Rodeheaver 1973-5-26 74 Placer Intersection of Magre and Gold Run Roads in Gold Run. 914 Comment
  UCR216027  Apocynum cannabinum George K. Helmkamp, Amy Barnes 2009-7-12 15190 Placer Sierra Nevada Mountains Foothills, along Todd Valley Road, 0.1 mile south of its junction with Foresthill Road, c. 13 air miles NE of Auburn 854 Comment
  RSA634243  Aquilegia formosa Robert M. Rhode, B. Nemeth 1997-6-26 169 Placer Near Blackwood Creek Canyon Road, about 0.4 miles west of turnoff from Highway 89 ( c. 4 miles south of Tahoe City) 1921 Comment
  UC147572  Aquilegia formosa Harriet A. Walker 1908-6-24 1249 Placer Blue Canyon Comment
  UC54280  Aquilegia formosa H. M. Hall and H. P. Chandler 1903-7-1 4681 Placer near summit of Mt. Ralston Sierra Nevada, Lake Tahoe vicinity 2773 Comment
  UC10152  Arabis divaricarpa J. Burtt Davy 1897-6 3247 Placer near Deer Park Inn; Truckee River Basin Comment
  POM303028  Arabis holboellii var. retrofracta L. S. Rose 1944-7-10 44053 Placer Chambers Lodge, Lake Tahoe 1921 Comment
  UC1601421  Arabis rectissima var. rectissima Katharine Brandegee Placer Tahoe Tavern Comment
  SBBG1363  Arceuthobium abietinum E. R. Blakley 1960-8-29 3793 Placer Carnelian Bay, Lake Tahoe 1981 Comment
  UC615467  Arceuthobium americanum Beryl O. Schreiber 1932-9-12 776 Placer Tahoe Meadow Lake Tahoe Comment
  JEPS73011  Arceuthobium campylopodum Gladys L. Smith and Robie Wilson 1972-7-2 3284 Placer Tahoe City 1920 Comment
  UC1078827  Arceuthobium campylopodum Job Kuijt 1957-5-18 1333 Placer 1 mi n Tahoe City (on Hwy 89) 1798 Comment
  UC1078832  Arceuthobium campylopodum Job Kuijt 1957-5-18 1339 Placer 1.5 mi e Tahoe State Park (on Hwy 28) Comment
  UCD162747  Arctostaphylos Dylan O. Burge; J. Bisbee 2014-5-25 1631 Placer Bear River watershed, roadside on California State Route 20. 1430 Comment
  SEINET7258390  Arctostaphylos manzanita J. Schenk 1959-3-27 s.n. Placer 2 miles west of Auburn, on a saide road branching from Highway 40 152 Comment
  CAS-BOT-BC24242  Arctostaphylos mewukka C. Hart Merriam 1911-11-5 s.n. Placer W. slope of Sierra Nevada. Gorge Station, C.P.R.R. 1219 Comment
  CAS-BOT-BC24248  Arctostaphylos mewukka Alice Eastwood 1922-4-6 11122 Placer 3 mi. above Colfax near the road. Comment
  CAS-BOT-BC24249  Arctostaphylos mewukka Walter Knight; Irja Knight 1989-4-17 6481 Placer Moody Ridge, 2.3 mi. from Alta exit on I-80 up Casa Loma Road at probably type locality. 1219 Comment
  POM286039  Arctostaphylos nevadensis Lyman Benson 1933-6-26 4539 Placer Cisco, U.S. 40. Sierra Nevada; Bear River watershed. 1829 Comment
  POM76735  Arctostaphylos nevadensis Marcus E. Jones 1882-6-29 s.n. Placer Emigrant Gap. Comment
  UCD21475  Arctostaphylos nevadensis Rex Palmer 1979-5-26 N 3 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD164014  Arctostaphylos nissenana Jeff Bisbee 2016-2-10 1209 Placer Mosquito Ridge Rd., 20 m east of mile marker 19 and 15 m south of the road, below large turnout, adjacent to Rd. 12. North rim of the Middle Fork of the American River. 1267 Comment
  CAS-BOT-BC42104  Arctostaphylos patula W. R. Dudley 1900-6-29 s.n. Placer Tahoe City Comment
  CAS-BOT-BC42105  Arctostaphylos patula Alice Eastwood 1912-6-15 492 Placer Lake Tahoe Region - Deer Park Comment
  CAS-BOT-BC42150  Arctostaphylos patula Mary P. Wells 1980-9-12 s.n. Placer Sierra Nevada - forest west of Pioneer Way, Tahoe City 1981 Comment
  UCD52052  Arctostaphylos uva-ursi Ellen Dean 2002-9-28 1301 Placer Gold Run rest area along Hwy 80, just before exit to Dutch Flat. 762 Comment
  CAS-BOT-BC47054  Arctostaphylos viscida subsp. viscida Brandegee 1889-1-1 132 Placer Blue Canyon. Comment
  CAS-BOT-BC47055  Arctostaphylos viscida subsp. viscida Carl B. Wolf 1930-10-11 1733 Placer Near Alta. 1127 Comment
  CAS-BOT-BC47060  Arctostaphylos viscida subsp. viscida Alice Eastwood 1922-4-6 11121 Placer 3 mi. above Colfax near the road. Comment
  POM202667  Arctostaphylos viscida subsp. viscida Alice Eastwood 1922-4-6 11123 Placer Colfax. Comment
  UC876564  Arctostaphylos viscida subsp. viscida P. A. Lebenbauer 1934-6-23 Placer above Colfax 914 Comment
  RSA480532  Arenaria congesta A. Kellogg 1870-06 s.n. Placer Cisco. Comment
  SEINET5784772 Image available Arenaria congesta Marcus E. Jones 1882-1 3278 Placer Emigrant Gap Comment
  SCFS1049  Arnica E. Krimmel, F. Felix 2014-8-7 Placer North Fork American River, Headwaters Basin, Needle Lake Comment
  UCD21689  Arnica Rex Palmer 1979-6-21 N 415 Placer Headwaters basin area of the North Fork of the American River. Comment
  CAS-BOT-BC82202  Arnica chamissonis Geo. B. Grant 1906-7-15 6993 Placer Tahoe Tavern, Lake Tahoe 1889 Comment
  CAS-BOT-BC82209  Arnica chamissonis Alice Eastwood 1909-1 312 Placer Tahoe City Comment
  CAS-BOT-BC82210  Arnica chamissonis Geo. B. Grant 1906-8-1 7082 Placer About Lake Tahoe 2438 Comment
  JEPS127457  Arnica chamissonis Steve Matson 1998-5-27 321 Placer nSNH; Martis Valley, about 4 miles SE of Truckee; Martis Creek Wildlife Area; 600 meters south of Highway 267, south of Martis Creek. Comment
  UC197278  Arnica chamissonis C. F. Sonne 1886-7-1 Placer Truckee River Comment
  UC53991  Arnica chamissonis Chesnut and Drew 1890-8-8 Placer Cascade Lake Tahoe Comment
  CDA12432  Arnica cordifolia G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8504 Placer Lake Tahoe; N side of upper Ward Valley, 4 mi SW of Tahoe City. Comment
  JEPS20875  Arnica dealbata Leland S. Smith 1925-1-1 1664 Placer near Middle Fork of the American River; Tahoe National Forest, French Meadows 1828 Comment
  CAS-BOT-BC82653  Arnica latifolia Alice Eastwood 1909-1 276 Placer Ward Pass, Lake Tahoe Region Comment
  POM160971  Arnica longifolia subsp. myriadenia C. F. Sonne 1897-8-7 s.n. Placer E Slope Mt. Anderson 2439 Comment
  UC29592  Arnica mollis Miss M. E. Parsons 1896-8-1 Placer Deer Park, (Lake Tahoe) Comment
  UCD42806  Arnica mollis C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-23 172 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  UCD83640  Arnica mollis Albert Grigarick 2009-9-10 193 Placer Squaw Creek Resort, approx. in middle of Emigrant Lift. 2526 Comment
  SEINET11837497  Arnica nevadensis C. F. Sonne 1885-1 s.n. Placer Anderson's Peak. Trukee Knob Comment
  UCD56023  Arrhenatherum elatius Beecher Crampton 1955-6-15 2913 Placer 1/2 mile north of Forest Hill. 975 Comment
  SEINET8196674  Artemisia arbuscula subsp. thermopola D. W. Taylor 2013-7-7 21400 b Placer Tinker Knob, east flank (approached from the jeep road along the ridge to the NE). 2648 Comment
  SEINET4691717  Artemisia douglasiana George K. Helmkamp 2011-1 18340 Placer Northern Sierra Nevada Mountains Foothills: Diggins Hill Road at the south side of the Bear River Reservoir, 1.1 miles north of Dutch Flat 852 Comment
  UCD75938  Artemisia ludoviciana Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5175 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek. South side of trail by creek. 2145 Comment
  UCD129333  Artemisia ludoviciana subsp. incompta A. A. Heller 1917-8-13 12898 Placer Base of a cliff north of Summit hotel. 2164 Comment
  UC193587  Artemisia ludoviciana subsp. incompta C. F. Sonne 1885-8-2 Placer ravine on river at Mathew's Dam; Truckee River Comment
  CHSC89315  Artemisia ludoviciana subsp. ludoviciana G. F. Hrusa; J. Glazner 2000-7-1 15609 Placer Northern Sierra Nevada. Summit Village, Truckee. Along Donner Creek adjacent to Hwy 89. UTM: 10 S, 43571 N, 07411 E. [Lat./long. on label is '39 22 N; 120 15 W']. 1844 Comment
  CAS-BOT-BC400748  Asarum lemmonii Marcus E. Jones 1882-6-29 3499 Placer Emigrant Gap Comment
  SEINET5780630 Image available Asarum lemmonii Marcus E. Jones 1882-1 3499 Placer Emigrant Gap Comment
  CAS-BOT-BC400750  Asarum lemmonii Beecher Crampton 1958-6-24 4964 Placer 3 miles west of Baxter 1066 Comment
  UC878961  Asclepias cordifolia Marcus E. Jones, A. M. 1882-6-30 2802 Placer Emigrant Gap Comment
  UC22964  Asclepias cordifolia Mrs. M. M. Hardy 1893-1 Placer Comment
  POM76173  Asclepias fascicularis Marcus E. Jones 1882-7-8 s.n. Placer Auburn Comment
  SEINET5777347 Image available Aspidotis densa Marcus E. Jones 1882-1 Placer Emigrant Gap Comment
  CAS-BOT-BC69577  Aspidotis densa Emily K. Mcpherson 1976-9-19 76- 27 -3 Placer Middle Fork of the American River. 1828 Comment
  CDA25023  Aster occidentalis J. Glazner 2000-8-16 s.n. Placer Lake Tahoe; betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. Perennial. 1889 Comment
  POM57806  Aster occidentalis C. F. Sonne 1897-07 12321 Placer Canyon above Coldstream Comment
  UCR190170  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2007-8-1 12643 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 Comment
  RSA473519  Aster oregonensis subsp. californicus Wm. Martin 1971-9-10 20245 Placer 1 mile north of Gold Run on Hwy 80 Comment
  SCFS1043  Asteraceae E. Krimmel, F. Felix 2014-8-7 Placer North Fork American River, Headwaters Basin, Needle Lake Comment
  SCFS1029  Asteraceae E. Krimmel 2013-7-28 Placer North Fork American River, trail to Heath Falls Overlook. Stop #1 Comment
  SEINET5324976  Astragalus andersonii F. H. Hillman s.n. Placer Between Truckee and Tahoe Comment
  UC170082  Astragalus canadensis var. brevidens Miss Helen D. Geis August 1912 Placer near Truckee; near Truckee Comment
  JEPS127433  Astragalus cicer Steve Matson 2003-7-6 836 Placer nSNH; north Lake Tahoe ; Dollar Hill 3 miles east of Tahoe City. Comment
  UCD105071  Astragalus lentiginosus S. S. Smith 1916-6 709 Placer Transition Squaw Valley. Comment
  JEPS59464  Astragalus whitneyi var. lenophyllus Ezra Brainerd and Viola B. Baird 1915-7-19 200 Placer above Deer Park (summit of The Craggs); Sierra Nevada Mts., summit of the Craggs above Deer Park 2514 Comment
  UCD66825  Asyneuma prenanthoides Beecher Crampton 1956-7-17 3730 Placer Blue Canyon. 1432 Comment
  CAS-BOT-BC69538  Athyrium alpestre subsp. americanum Sonne 1886-8-1 324 Placer Unspecified. Comment
  POM160238  Athyrium americanum C. F. Sonne 1887-07 s.n. Placer East slope of Mount Anderson 2439 Comment
  SJSU8182  Athyrium distentifolium var. americanum R. L. Fisher 1959-8-16 Placer near summit of Anderson Peak on N facing slope 2642 Comment
  CHSC85762  Athyrium filix-femina G. F. Hrusa; J. Glazner 2000-9-3 15669 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CAS-BOT-BC17414  Athysanus pusillus A. A. Heller 1917-6-17 12693 Placer Near the Yuba River below Cisco. 1676 Comment
  CAS-BOT-BC17415  Athysanus pusillus L. S. Smith 1926-4-16 1779 Placer Tahoe Forest. Forest Hill Divide. Road to Sugar Pine. 1097 Comment
  SACT000359  Avena barbata Michael Baad 1983-4-17 Placer 4 miles South of Interstate 80 on Ponderosa Road 411.48 Comment
  SACT000366  Avena barbata Josephine Van Ess 1975-5-15 Placer collected along path from homestead site. 91.5 Comment
  SACT000369  Avena barbata D. Meyer 1983-6-5 Placer along roadside 487.68 Comment
  SACT000392  Avena fatua D. Meyer 1983-6-5 Placer 977.3 Comment
  SACT000402  Avena fatua D. Meyer 1983-10-22 Placer Searchlight ski run from base to Olympic Lady chairlift; Downhill ski area cleared of most vegetation, trees line edge; Straw added for erosion control 2121.0 Comment
  CAS-BOT-BC146153  Avena fatua Peter H. Raven 1954-4-16 6609 Placer 7 miles south of Lincoln on road to Roseville. Comment
  SACT000420  Avena sativa D. Meyer 1984-7-9 Placer pear and plum orchard 206.0 Comment
  RSA43812  Balsamorhiza deltoidea D. F. Howe 1948-5-23 s.n. Placer American River 305 Comment
  SD43641  Balsamorhiza deltoidea Darley F. Howe 1948-5-23 1859 Placer American River 305 Comment
  JEPS126383  Balsamorhiza hookeri Steve Matson 1998-5-17 199 Placer nSNH; Martis Valley, about 4 miles SE of Truckee; Martis Creek Wildlife Area; 100 yards north of airport creek, 100 yards south of Martis Dam Road; 5% slope. Comment
  SD80952  Balsamorhiza hookeri James Henrickson 1969-5-25 3405 Placer 102 miles northeast of Sacramento, 4 miles southeast of Truckee along Hwy. 267. 1830 Comment
  UC761939  Balsamorhiza macrolepis R. F. Hoover 1939-5-10 4092 Placer Lincoln Comment
  UC480757  Balsamorhiza sagittata W. C. Blasdale 1923-8-13 Placer top of Ellis Peak Lake Tahoe Region Comment
  CAS-BOT-BC438815  Barbarea orthoceras George K. Helmkamp; Mary Alice Barnes 2013-4-18 20349 Placer Foothills, northern Sierra Nevada Mountains: Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 deg. ) of Colfax. 561 Comment
  UCR250688  Barbarea orthoceras George K. Helmkamp, Mary Alice Barnes 2013-4-18 20349 Placer Northern Serrra Nevada Mountains Foothills, Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 deg. ) of Colfax 561 Comment
  JEPS113294  Bellardia trixago L. P. Janeway 2006-5-10 8594 Placer Sacramento Valley. Northeast side of Hwy 65, 2.8 road km northwest of central Lincoln, at upper drive into clay pits. Comment
  UCR235379  Berberis aquifolium var. repens George K. Helmkamp, E. A. Helmkamp 2012-5-11 18961 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 4.0 miles north of Forest Hill Road and at the junction with Hollow Logging Road 1140 Comment
  CAS-BOT-BC75988  Berberis pumila Mrs. H. M. Mitchell 1923-4-26 s.n. Placer Gold Run. Comment
  UCSB70080  Bidens frondosa Helmkamp, G.; Helmkamp, E. 2007-9-14 Placer Foothills, northern Sierra Nevada Mountains: along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  SEINET4176621  Bistorta bistortoides L. Miller 1934-5-20 s.n. Placer Between Truckee and Tahoe Comment
  CAS-BOT-BC100273  Blennosperma nanum var. nanum Gordon H. True 1971-4-9 6474 Placer in Valley Grassland, northern limits of Lincoln 48 Comment
  CAS-BOT-BC100272  Blennosperma nanum var. nanum Serena Philips 1915-4-2 s.n. Placer Near Lincoln Comment
  UC931946  Blennosperma nanum var. nanum Verne Grant and Alva Grant 1946-4-10 7684 Placer e of, on road to Lincoln Loomis Comment
  UC178951  Boechera platysperma Katharine Brandegee Jul 1908 Placer near Cisco Comment
  UCD22333  Boechera platysperma Beth Lowe Corbin 1982-8-4 242 Placer 1 1/2 mile N of Onion Creek Campground. E facing slope, 50% inclination. Unocommon. Full sun. In rocky and fine, sandy, granitic soil of loose talus slope in white fir forest. 2255 Comment
  UCD21606  Boechera stricta E. Dean; M. Starbuck, C. Tresan, S. Tresan 2001-6-30 1275 Placer Vicinity of the town of Soda Springs. Meadow across from housing along Soda Springs Road, trailhead for trail that starts at Soda Springs Rd. and travels E from the Serene Lakes region up ca. 100 m to a ridge that looks down on Lake Van Norden and railroad tracks. 2200 Comment
  RSA6524  Boisduvalia densiflora Jens Clausen 1932-9-16 651 Placer 2.8 miles from Auburn on the Sacramento Road Comment
  UCD66905  Botrychium simplex John Hunter 2008-6-25 s.n. Placer north of Kings Beach (north shore of Lake Tahoe) along unnamed tributary of Griff Creek. 2300 Comment
  CHSC11101  Boykinia major Lowell Ahart 1966-8-12 Placer Near French Meadows. 1676 Comment
  UC114850  Boykinia major Brandegee Sept. 1888 Placer Blue Canyon Comment
  UCR200862  Boykinia major George K. Helmkamp, E. A. Helmkamp 2008-9-15 14115 Placer Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill 1707 Comment
  UCR66500  Boykinia major Fay A. MacFadden 1934-8-3 12751 Placer Sierra Nevada Mtns., Canyon Creek, near Baxter's, Alta 1189 Comment
  CAS-BOT-BC417619  Boykinia major L. S. Smith 1927-8-5 2141 Placer Robertson Flat, R.S. Forest Hill Dist. Comment
  SACT000438  Brachypodium distachyon Josephine Van Ess 1977-5-6 Placer Collected just inside park; opening in chaparral 176.8 Comment
  UCR171022  Brassica rapa George K. Helmkamp, E. A. Helmkamp 2006-2-9 10064 Placer Northern Central Valley, Clark Tunnel Road and Calif. Highway 193, east of Lincoln 113 Comment
  SD243074  Brickellia californica George K. Helmkamp, E. A. Helmkamp 2010-10-16 17015 Placer Northern Sierra Nevada Mountains Foothills: Old Foresthill Road (Between CA-49 and new Foresthill Road), 1.8 miles northeast of junction with CA-49 (Auburn 7.5'Q) 249 Comment
  UCR231884  Brickellia californica George K. Helmkamp, E. A. Helmkamp 2010-10-16 17015 Placer Northern Sierra Nevada Mountains Foothills, Old Foresthill Road (between CA-49 and new Foresthill Rd), 1.8 miles northeast of junction with CA-49 250 Comment
  SEINET7379423 Image available Brickellia californica F. Emmerich 1980-9-20 s.n. Placer North Fork of the Middle Fork of the American River 366 Comment
  CAS-BOT-BC145514  Briza minor A. A. Beetle 1941-5-26 2711 Placer Near Cisco. 914 Comment
  UCR231890  Briza minor George K. Helmkamp, E. A. Helmkamp 2011-4-10 17145 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  SACT000473  Briza minor Josephine Van Ess 1976-4-26 Placer in low moist area; light shade, grassy, moist 91.5 Comment
  SEINET9364702  Brodiaea elegans Unknown 2010-6-26 16372 Placer Sierra Nevada Mountains Foothills Comment
  CAS-BOT-BC484262  Brodiaea elegans var. elegans R. F. Hoover 1965-6-24 9450 Placer 2 mi. n. of Auburn on road to Grass Valley (Highway 49) Comment
  CAS-BOT-BC484263  Brodiaea elegans var. elegans S. P. Rixford 1914-6-22 s.n. Placer Loomis Comment
  SEINET7067123  Brodiaea stellaris A. G. Vestal 1947-4-29 s.n. Placer Serpentine about 3.8 miles north of Auburn and 0.2 miles south of Elders Corner on Route 49. Coordinate datum: NAD27. UTM Zone 10, 664672mE, 4313245mN. Comment
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Jul 17 2018
  UCR218217  Bromus George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16435 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 415 Comment
  SACT000517  Bromus carinatus 1983-8-7 Placer near gate into ski area parking lot, moist meadow with many sedges 2072.0 Comment
  UCD58160  Bromus carinatus Frederica Bowcutt 1994-7-22 1951 Placer Sierra Nevada Mountains, Tahoe Basin, Northshore between Truckee and Tahoe City, Squaw Valley ski resort. Near High Camp on ridge SE of pond site. 2438 Comment
  UCD58249  Bromus carinatus Beecher Crampton 1955-6-15 2819 Placer 5.5 miles west of Iowa Hill. Comment
  SEINET203582 Image available Bromus carinatus var. marginatus F. J. Hermann 1955-7-27 11940 Placer NW shore of Lake Tahoe 1829 Comment
  UCD59165  Bromus carinatus var. marginatus L. S. Smith 1916-6-27 647 Placer Squaw Valley. Comment
  CHSC73252  Bromus ciliatus L. P. Janeway 1998-8-6 5994 Placer Lake Tahoe Basin Management Unit. North side of Blackwood Creek, 1.7 mi west of Lake Tahoe. 1938 Comment
  SACT000491  Bromus commutatus D. Meyer 1984-6-23 Placer Nevada-Placer County line, moist shaded area 594.0 Comment
  POM264452  Bromus diandrus A. A. Beetle 1941-5-26 2718 Placer Near Cisco 915 Comment
  SACT000495  Bromus hordeaceus D. Meyer 1983-4-17 Placer Small drainage ditch, moist sunny exposure 231.648 Comment
  CAS-BOT-BC155328  Bromus laevipes A. A. Beetle 1941-5-26 2726 Placer Near Cisco. 914 Comment
  CDA15966  Bromus laevipes G. F. Hrusa, J. Glazner 1999-7-17 15121 Placer Martis Valley; Martis Valley, off Hwy 267, S of Truckee. 1889 Comment
  SACT000635  Bromus madritensis D. Meyer 1983-6-5 Placer along turn-off, roadside 487.68 Comment
  HSC9325  Bromus madritensis subsp. rubens L. M. Malloy 1965-4-17 43 Placer 5 mi. W of Newcastle on Newcastle-Lincoln Rd. by Nakamura's pond Comment
  SACT000694  Bromus marginatus D. Meyer 1983-7-16 Placer 1853.18 Comment
  SACT000698  Bromus marginatus D. Meyer 1984-7-21 Placer moist roadside ditch and pine wooded area, dense shade 1927.0 Comment
  SEINET3923241  Bromus marginatus Beecher Crampton 1985-6-23 9998 Placer North Shore Lake Tahoe, Stateline road.; 0 Comment
  SACT000614  Bromus molliformis Josephine Van Ess 1976-3-31 Placer open roadside Comment
  SACT000584  Bromus mollis D. Meyer 1983-5-15 Placer moist roadside ditch, next to cultivated field 19.812 Comment
  CAS-BOT-BC162162  Bromus orcuttianus Catherine Best 1981-8-2 s.n. Placer Sierra Nevada. About 2 miles southwest of French Meadows on the road of Big Meadow. Comment
  CAS-BOT-BC162163  Bromus orcuttianus Peter H. Raven 1956-8-4 9999 Placer Sierra Nevada. 1.0 mile from Blue Canyon on road to Emigrant Gap. Comment
  UC1131101  Bromus orcuttianus H. S. Yates 1936-8-8 5981 Placer near Meeks Bay 1920 Comment
  UC1162317  Bromus orcuttianus R. F. Hoover 1967-9-7 10858 Placer Antone Meadow Comment
  UCD43082  Bromus porteri C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-19 450 Placer Lake Tahoe Basin; Blackwood Canyon. UTM's 10 743067E, 4332664N. 1938 Comment
  SEINET3922457  Bromus rigidus Arnold Tiehm, Hugh N. Mozingo; Margaret Williams; Emily McPherson 1975-3-25 606 Placer One mile north of Lincoln.; 0 Comment
  SACT000726  Bromus rubens Michael Baad 1983-4-17 Placer descending to North Fork of American River 411.48 Comment
  CAS-BOT-BC161586  Bromus sterilis Saichi Kawahara 1969-7-6 1421 Placer West of old cabin, Mel Henderson Ranch, Indian Creek. 999 Comment
  CAS-BOT-BC161572  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Placer Mount Lincoln south of Summit Valley. 2499 Comment
  CDA16033  Bromus suksdorfii G. F. Hrusa, J. Glazner 2000-9-3 15680 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. Abies concolor, A. magnifica, Pinus monticola, P. contorta forest with dense herbaceous understory. Common, cutover understory, in openings. 2164 Comment
  CAS-BOT-BC161528  Bromus tectorum Lewis S. Rose 1946-6-23 46198 Placer Rainbow, north of Cisco. 1737 Comment
  CAS-BOT-BC185465  Calamagrostis canadensis Peter Rubtzoff 1976-9-18 8848 Placer Sierra Nevada. Lake Van Norden. South side of lake. 2063 Comment
  CDA25015  Calamagrostis canadensis J. Glazner 2000-8-16 s.n. Placer Lake Tahoe; Wooded slopes betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. 1889 Comment
  CHSC73528  Calamagrostis canadensis L. P. Janeway; Eric Schroder 1998-9-16 6336 Placer Lake Tahoe Basin-National Forest. Meadow on north side of the creek about half way between Buck Lake and McKinney Creek; about 2.2 mi southwest of lake Tahoe. 2124 Comment
  UCD43835  Calamagrostis canadensis C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-7 1201 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  UCD75967  Calamagrostis canadensis Ellen Dean, M. Starbuck,; M. Bibbo, J. Poloske 2008-7-20 5249 Placer Donner State Park, newly acquired lands to the SW of Donner Lake. Area south of southern Pacific RR tracks, just south of Lakeview Canyon and north of Emigrant Canyon. 2099 Comment
  UCD100240  Calandrinia ciliata M. H. Mills 1996-4-12 153 Placer on edge of ephemeral pond at 5830 Walden Lane, Loomis. 180 Comment
  CDA19070  Callitriche fassettii R. Simon 2001-4-13 PDR 062709 Placer Corner of Roseville Parkway and Ornetto, Roseville. 0 Comment
  IRVC8990  Calocedrus decurrens Pamela I. B. Roeber 1974-10-20 64 Placer 3 miles S of Foresthill on Auburn-Foresthill Road. Comment
  CHSC24734  Calochortus albus T. C. English 1976-4-11 12 Placer N. Fork American River. 2 mi. W. Hwy 49 bridge, 400yds. N. abandoned R. R. in S. facing rockpile. 335 Comment
  SEINET8196119  Calochortus coeruleus M. J. Williams 1970-6-7 s.n. Placer Near Emigrant Gap. 1615 Comment
  JEPS111213  Calochortus leichtlinii Steve Matson 2005-7-4 1376 Placer Martis Valley, southeast of Truckee, National Recreation Area, south of Highway 267 and south of Martis Creek and west of Northstar subdivision; 39.2872 N, 120.1382 W: elevation 5,900 ft. 1798 Comment
  UCD22049  Calochortus leichtlinii Rex Palmer 1979-6-19 N 269 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC490164  Calochortus leichtlinii Lowell Ahart 1963-7-1 s.n. Placer Near Robinson Flat. 1828 Comment
  SEINET11261859  Calochortus minimus George Helmkamp, E. A. Helmkamp 2012-5-11 18941 Placer Foothills, Northern Sierra Nevada Mountains: Finning Mill Road, at the junction with Forest Hill Road (Foresthill 7.5' Q.); 0 1136 Comment
  UCR208587  Calochortus minimus George K. Helmkamp, E. A. Helmkamp 2009-5-11 14652 Placer Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.5 miles northeast of Foresthill 1073 Comment
  CAS-BOT-BC483462  Calochortus minimus Marcus E. Jones 1882-6-28 3300 Placer Emigrant Gap Comment
  CAS-BOT-BC483463  Calochortus minimus Marcus E. Jones 1882-6-28 3300 Placer Emigrant Gap Comment
  CHSC40082  Calochortus monophyllus L. Constance; J. L. Morrison 1938-4-30 2172 Placer At E. edge of Applegate, Sierra Nevada foothills. 60 Comment
  POM260065  Calochortus monophyllus C. L. Hitchcock 1940-5-7 6311 Placer 1 mile west of Baxter Comment
  SEINET4169895  Calochortus monophyllus C. L. Hitchcock 1940-5-7 6311 Placer ca. 1 mile west of Baxter Comment
  CAS-BOT-BC493405  Calochortus monophyllus Georgia Bentley 1919-4-20 s.n. Placer At Auburn near river Comment
  CAS-BOT-BC493407  Calochortus monophyllus Wm. Vortriede 1928-4-21 s.n. Placer Placerville hill Comment
  UC569915  Calochortus nudus N. French 1934-5-28 370 Placer 1.5 mi w Black Mountain; Colfax Quad. 1767 Comment
  RSA0000324  Calochortus nuttallii var. subalpinus Marcus E. Jones 1882-6-30 s.n. Placer Emigrant Gap. Comment
  CAS-BOT-BC270654  Calycadenia multiglandulosa H. D. Ripley; R. C. Barneby 1948-7-12 9815 Placer Applegate, along railroad Comment
  SDSU6417  Calycadenia multiglandulosa D. F. Howe 1964-7-26 3872 Placer Auburn. Comment
  UC912594  Calycadenia multiglandulosa H. L. Mason 1929-10-4 5455 Placer 2.4 mi below Weimar Comment
  CAS-BOT-BC270644  Calycadenia multiglandulosa Rimo Bacigalupi; et al. 1952-7-19 3849 Placer About 1.5 miles N of (and below) Colfax on grade along road to Iowa Hill, N slope of the canyon of the N Fork of the American River Comment
  UC419713  Calycadenia multiglandulosa Mrs. H. P. Bracelin 1930-10-12 101 Placer 1st summit n of, on Georgetown Rd. Colonia Comment
  RSA121123  Calycadenia multiglandulosa subsp. bicolor N. H. French 1933-6-22 81 Placer North of Bald Rock Mountain 549 Comment
  RSA255512  Calycadenia spicata Gerald D. Carr 1971-8-15 631 Placer Karchner Road, about 6 miles east of Wheatland 61 Comment
  POM30655  Calycadenia truncata subsp. truncata Marcus E. Jones 1882-7-3 s.n. Placer Colfax. Comment
  SBBG1921  Calyptridium monospermum E. R. Blakley 1960-9-4 3823 Placer hill 1 mi N of Carnelian Bay, Lake Tahoe 2072 Comment
  UC7770  Calyptridium monospermum C. J. Fox 1895-7-1 Placer Deer Park Inn Comment
  UCD96972  Calyptridium monospermum Chuck Hughes 2010-7-13 236 Placer Within 50 ft of north side of Alpine Meadows Road. 1903 Comment
  UCR232231  Calyptridium monospermum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16645 Placer Northern Sierra Nevada Mountains, Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road 1567 Comment
  CAS-BOT-BC221214  Calystegia malacophylla subsp. malacophylla Marcus E. Jones 1882-6-28 3299 Placer Emigrant Gap Comment
  CHSC114930  Calystegia occidentalis subsp. fulcrata Dale Woods 2010-8-12 Placer Finning Mill Road. One mile more or less to Hughes Mill. Road bank. Comment
  CHSC70246  Calystegia occidentalis subsp. occidentalis R. A. Schlising; T. Lane 1975-6-3 3165 Placer E of Auburn, at roadside of Hwy 49, just above crossing of American River. Comment
  UC1965415  Calystegia vanzuukiae R. K. Brummitt, S. M. Namoff, K. Van Zuuk & B. Ertter 2012-6-12 22053 Placer Tahoe National Forest, 7.5 miles NE of Forest Hill, on Finning Mill Road 5.6 miles from Forest Hill Divide Road Comment
  UCD150570  Camassia quamash subsp. breviflora James A. Neilson Jr. 1971-6-30 2131 Placer Tahoe Basin, Ward Valley Drainage, Plot #132. 1920 Comment
  SEINET9262034  Campanula prenanthoides George K. Helmkamp, Elizabeth Helmkamp 2013-1 20801 Placer Northern Sierra Nevada Mountains Foothills; Yankee Jims Road, 3.6 miles northwest of its junction with Forest Hill Road (Foresthill 7.5 Q) 768 Comment
  SEINET10462849  Campanula prenanthoides Brainerd 1915-7-31 BRAINERD 203 Placer Woods above Nevada City. Comment
  SEINET10463035  Campanula prenanthoides F. A. MacFadden 1934-7-9 MacFadden 12733 Placer Emigrant Gap Comment
  UC29008  Campanula prenanthoides Mrs. M. M. Hardy 1893-1 Placer Comment
  SEINET5341002  Capsella bursa-pastoris A. Tiehm, H. Mozingo; M. Williams; E. McPherson 1975-1 619 Placer One mile north of Lincoln. Comment
  UCD114162  Capsella bursa-pastoris Terri Williamson 1990-4-15 3 Placer 22587 Sunset Ridge Drive, Lake of the Pines. 365 Comment
  UCR173518  Capsella bursa-pastoris George K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10130 Placer Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin 122 Comment
  UCD22365  Cardamine breweri Rex Palmer 1979-7-26 N 835 A Placer Headwaters basin area of the North Fork of the American River Comment
  UCD75767  Cardamine breweri Ellen Dean; M. Bibbo, J. Poloske, M. Starbuck 2008-7-20 5239 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, area south of the Southern Pacific RR tracks, just south of Lakeview Canyon and north of Emigrant Canyon. 2099 Comment
  UCR115057  Cardamine cordifolia G. Fred Hrusa, J. Glazner 1997-8-3 14059 Placer Corner of Hwy 89 and Squaw Valley Rd. 2020 Comment
  JEPS53308  Cardamine cordifolia var. lyallii C. F. Sonne July 1886 423 Placer along creek in canyon on rd. to Hot Springs (Tahoe); Tahoe Comment
  CDA39063  Carduus nutans Preston Neufeld 2013-7-29 PDR# 310 P06129934 Placer Vicinity of Truckee; 192 Basque Drive. Comment
  CAS-BOT-BC281744  Carduus pycnocephalus Chester Dudley 1940-6-1 s.n. Placer Near Placerville Comment
  CDA11985  Carex G. F. Hrusa 1995-5-2 12166 Placer Sierra Nevada; Approx. 5 km. beyond Mosquito Ridge Rd. crossing of North Fork of Middle Fork of the American River. Comment
  UCD140989  Carex G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12067 Placer Northern Sierra Nevada Mountains: Sugar Pine Road, 0.2 mile northwest of Forest Hill Road. 1360 Comment
  UCD44591  Carex alma C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 1957 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  UC50813  Carex angustata J. Burtt Davy Jun 25 1897-Jun 30 1897 3271 Placer Truckee River Truckee River Basin Comment
  CHSC75311  Carex athrostachya Susi Urie 1998-8-29 98 -159 Placer Middle of Page Meadows; about 2 mi west of Lake Tahoe and Sunnyside. 2115 Comment
  UCD44625  Carex athrostachya C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 1991 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  UCD75942  Carex athrostachya Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5181 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek. South side of trail by creek. 2145 Comment
  UC823307  Carex bolanderi Marcus E. Jones 1882-6-29 3535 Placer Emigrant Gap Comment
  SEINET11630737  Carex densa M. E. Jones 1889-1 9 Placer Emigrant Gap Comment
  SEINET3143641  Carex feta L. S. Rose 1939-6-5 39218 Placer Bear Valley near Emigrant Gap 1372 Comment
  UCD140303  Carex feta Beecher Crampton 1958-6-24 4965 Placer Earl Morton Ranch, 3 miles west of Baxter. 1066 Comment
  CHSC98656  Carex fracta Robert F. C. Naczi 2006-8-3 11406 Placer Ca. 4.2 mi E of town of Cisco Grove, 1.0 mi W of Nevada Co. border, S of E-bound lanes of I-80, 0.4 mi W of overpass for exit 171 (Kingvale Exit). 1851 Comment
  SEINET5786553 Image available Carex geyeri Marcus E. Jones 1882-1 3286 Placer Emigrant Gap Comment
  CHSC68059  Carex hoodii James D. Jokerst 1986-7-12 2692 A Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  UC590011  Carex illota H. S. Yates 1936-8-9 5993 Placer 2 mi sw Martis Peak (n of Agate Bay); Truckee Quadrangle, Lake Tahoe 2286 Comment
  CHSC74288  Carex infirminervia Susi Urie 1998-8-13 98 -043 Placer Meadow along the south side of Ward Creek, about 1.5 mi west of Lake Tahoe and Sunnyside. 2097 Comment
  UCD42858  Carex jonesii C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-23 225 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  POM80922  Carex lemmonii Marcus E. Jones 1882-6-18 s.n. Placer Emigrant Gap. Comment
  UC710517  Carex lenticularis var. lipocarpa Lewis S. Rose 1944-7-25 44240 Placer Chambers Lodge Lake Tahoe 1920 Comment
  SEINET3000400 Image available Carex luzulifolia Marcus E. Jones 1882-6-29 2907 Placer Emigrant Gap. Comment
  UCD44435  Carex luzulifolia C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1801 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
  CAS-BOT-BC32454  Carex luzulifolia var. strobilantha Amos Arthur Heller 1903-8-17 7187 Placer Above Donner Pass 2286 Comment
  SEINET10842189  Carex luzulifolia var. strobilantha A. Arthur Heller 1903-8-17 Heller 7187 Placer Above Donner Pass. 2286 Comment
  CAS-BOT-BC31605  Carex luzulina var. ablata John Thomas Howell 1938-8-2 14003 Placer 5 miles N of Brockway. Comment
  UC710481  Carex mariposana John Thomas Howell 1943-7-27 18876 Placer near Tahoe Pines (Lake Tahoe) Comment
  UCD43304  Carex microptera C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-12 672 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  UCD74080  Carex microptera Jennifer W. Burt; Kate Mawdsley, Belinda Lo 2006-7-28 180 Placer Sugarbowl active ski area, off Hwy 80 near Soda Springs - collected from center of 'Terrain Park' ski run. 2221 Comment
  CAS-BOT-BC32060  Carex multicaulis Clare B. Hardham 1961-6-14 7349 Placer Route 40, near Baxter. Comment
  POM260101  Carex multicaulis C. L. Hitchcock 1940-5-7 6309 Placer 1 mile west of Baxter Comment
  UC833299  Carex multicaulis Marcus E. Jones, A. M. 1882-6-28 3286 Placer Emigrant Gap Comment
  RSA121768  Carex multicostata N. H. French 1934-6-21 431 Placer Northwest end of Kid Lake. 2012 Comment
  CHSC74302  Carex nebrascensis Susi Urie; Eric Schroder 1998-9-10 98 -329 Placer Lake Tahoe Basin. Antone Meadows; along Burton Creek, about 2.1 mi northwest of Lake Tahoe. 2072 Comment
  CAS-BOT-BC119851  Carex nebrascensis Peter Rubtzoff 1976-9-18 8847 Placer Lake Van Norden, S side of lake, lakeshore. 2063 Comment
  CHSC110729  Carex nervina Dean Wm. Taylor 2010-8-10 20992 Placer Martis Peak, near the Nevada Line in the headwaters of Juniper Creek 2508 Comment
  POM81078  Carex nervina Marcus E. Jones 1882-7-1 3533 Placer Emigrant Gap. Comment
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Sep 7 2010
  CAS-BOT-BC119587  Carex nudata Rimo Bacigalupi; George Ledyard Stebbins; Daniel Zohary; Juan Hector Hunziker; Alexander D. Hawkes; Friedrich Ehrendorfer; Howard C. Stutz 1952-7-19 3851 Placer Along N Fork of the American River, below Cape Horn sta. on the SP RR, 381 Comment
  CHSC74009  Carex pellita Susi Urie 1998-9-1 98 -184 Placer Lake Tahoe Basin Management Unit, National Forest. Large meadow below Hwy 28, between the highway and Lake Forest Road; about 0.3 mi north of Lake Tahoe. 1908 Comment
  UCD43923  Carex pellita C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-9 1289 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  CHSC74014  Carex praegracilis Susi Urie 1998-8-18 98 -075 Placer Lake Tahoe Basin. About 0.2 mi north of Lake Tahoe; large meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  CAS-BOT-BC118759  Carex preslii John Thomas Howell 1943-7-27 18876 Placer Lake Tahoe near Tahoe Pines. Comment
  CAS-BOT-BC117444  Carex senta Diane de Polo 1964-4-25 30 Placer 7 mi NW of Auburn. 365 Comment
  UCD77471  Carex serratodens Robert E. Preston 2002-6-14 1818 Placer Auburn, along Dry Creek Rd, ca. 0.8 mi e of its jct with Hwy 49. 440 Comment
  UCD43189  Carex simulata C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-20 558 Placer Lake Tahoe Basin; Blackwood Canyon. UTM's 10 743067E, 4332664N. 1938 Comment
  UCR179196  Carex straminiformis Rex Palmer 1979-7-9 N- 444 Placer Sierra Nevada Mtns., Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden] 2134 Comment
  CAS-BOT-BC116556  Carex subfusca Peter H. Raven 1956-8-4 10000 Placer Moist hillside 1 mi from Blue Canyon on road to Emigrant Gap. Comment
  CAS-BOT-BC116558  Carex subfusca Peter H. Raven; John ORourke 1956-8-4 10000 Placer Moist hillside 1.0 mi from Blue Canyon on road to Emigrant Gap. Comment
  SD481  Carex subfusca Jul 1915 B 72 Placer Donner Comment
  JEPS74225  Carex subnigricans Gladys L. Smith 1972-8-25 3428 Placer along trail descending cirque, n-facing slope Granite Chief Granite Chief 2590 Comment
  UCD43068  Carex utriculata C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-19 436 Placer Lake Tahoe Basin; Blackwood Canyon. UTM's 10 743067E, 4332664N. 1938 Comment
  UCD75770  Carex utriculata Ellen Dean; M. Bibbo, J. Poloske, M. Starbuck 2008-7-20 5242 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, area south of the Southern Pacific RR tracks, just south of Lakeview Canyon and north of Emigrant Canyon. 2099 Comment
  UCD83800  Carex utriculata Angela Calderaro 2009-7-8 s. n. Placer Truckee, near Donner Creek, SE of the intersection of Coldstream Rd. and Deerfield Dr. 1802 Comment
  POM313110  Carex vesicaria Malcolm A. Nobs, S. Galen Smith 1949-8-21 1517 Placer Placer County: Marsh between sandy beach and Agate Bay, north end of Lake Tahoe Comment
  CAS-BOT-BC114925  Carex whitneyi John Thomas Howell 1943-7-27 18875 Placer Lake Tahoe near Tahoe Pines. Comment
  UC830173  Carex whitneyi Alice Eastwood Jun 15 1912-Jun 19 1912 474 Placer Deer City Lake Tahoe Region Comment
  CAS-BOT-BC59031  Cassiope mertensiana C. F. Sonne 1897-8-14 s.n. Placer Mt. Anderson Comment
  SEINET12029476  Castanopsis chrysophylla C. F. Sonne 1884-1 s.n. Placer Comment
  SCFS5112  Castilleja applegatei F. Felix, Erica Krimmel 2013-5-19 9 Placer North Fork American River, 0.3 mile east Heath Falls overlook, on trail Comment
  JEPS86479  Castilleja applegatei subsp. pallida L. R. Heckard with J. Hickman and Alice Howard 1986-7-26 6556 Placer ca 5 mi se Donner Lake (slopes se of Tinker Knob, Sherman Chickering's Soda Springs holdings); Soda Springs 2529 Comment
  CAS-BOT-BC249699  Castilleja applegatei subsp. pinetorum Marcus E. Jones 1930-7-10 25530 Placer Lake Tahoe Comment
  JEPS73657  Castilleja applegatei subsp. pinetorum L. R. Heckard with G. L. Stebbins 1973-6-18 3445 Placer about 2.5 road mi e Forest Hill (high above (n of) Middle Fork American River) 762 Comment
  RSA518676  Castilleja applegatei subsp. pinetorum L. R. Heckard, G. Ledyard Stebbins 1973-6-18 3445 Placer High above (north) of Middle Fork American River, about 2.5 road miles east of Forest Hill. 762 Comment
  RSA569050  Castilleja applegatei subsp. pinetorum Bonnie C. Templeton 1931-7-5 1509 Placer Near Meek's Bay, Lake Tahoe. 2280 Comment
  UC148992  Castilleja applegatei subsp. pinetorum H. M. Hall Jul 1910 8707 Placer Cisco; Sierra Nevada Mountains 1798 Comment
  UC198252  Castilleja applegatei subsp. pinetorum Katharine Brandegee Aug 1917 Placer Donner Summit Comment
  CDA36915  Castilleja attenuata CDFA Staff s.n. Placer Pino Ranch, near Newcastle. 0 Comment
  CHSC96510  Castilleja attenuata Lowell Ahart; Brian Williams 2007-4-13 13652 Placer On damp granite soil, open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln. 43 Comment
  UCD122325  Castilleja attenuata M. H. Mills 1996-4-12 130 Placer 5830 Walden Lane, Loomis. 180 Comment
  CHSC1815  Castilleja densiflora subsp. densiflora 1943-4-21 Placer North of Lincoln. Comment
  SDSU10858  Castilleja exserta Dr. P. A. Munz 1948-5-20 2083 Placer 457 Comment
  SEINET3245842  Castilleja foliolosa G. K. Helmkamp, E. A. Helmkamp 2007-1 11715 Placer Foothills, Northern Sierra Nevada Mountains: Forest Hill Road at the junction with the unnamed road to Lake Clementine. 457 Comment
  UCD122499  Castilleja foliolosa G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10435 Placer Northern Sierra Nevada: ca. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with CA Hwy 49 at the middle fork of the American River. 370 Comment
  JEPS9828  Castilleja miniata W. L. Jepson 1918-7-30 7732 Placer Tahoe; Lake Tahoe 1920 Comment
  RSA35122  Castilleja miniata L. S. Rose 1944-7-25 44248 Placer Chambers lodge, Lake Tahoe. 1921 Comment
  UC1063339  Castilleja miniata B. Bolt 1934-7-19 151 Placer 1.5 mi n Tadpole Spring; Tahoe Natonal Forest, Colfax Quad. 1889 Comment
  UC198548  Castilleja miniata Katharine Brandegee Aug 12 1917-Aug 16 1917 Placer Donner Summit Comment
  SBBG48681  Castilleja miniata subsp. miniata L. B. Towle 1974-7-12 Placer N of A.D.Hauser cabin, St Hwy 267, King's Beach, Lake Tahoe Comment
  JEPS89136  Castilleja pruinosa Rimo Bacigalupi with G. L. Stebbins, Alex D. Hawkes, Juan Hunsiker, Daniel Zohary et al. 1952-7-20 3886 Placer 6 mi e Iowa Hill (just s of Shirttail Creek, close to headwaters); Tahoe National Forest 1188 Comment
  UCR241344  Castilleja subinclusa George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19825 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 0.5 mile north of Robinson Flat Campground, c. 26 miles NE of Foresthill, Tahoe National Forest 2043 Comment
  JEPS4341  Castilleja tenuis W. L. Jepson 1931-6-16 15929 Placer Tahoe Vista; Lake Tahoe 2042 Comment
  CAS-BOT-BC47796  Ceanothus C. H. M. 1911-11-5 s.n. Placer Colfax Comment
  SCFS5100  Ceanothus F. Felix, Erica Krimmel 2013-5-26 47 -B Placer North Fork/Chickering American River Reserve. Where Cedar Meadows trail meets Cedar Creek falls. Comment
  POM126437  Ceanothus X lorenzenii C. F. Sonne 1892-07 s.n. Placer Downe Lake, R Hills on road to Tahoe Comment
  POM303018  Ceanothus cordulatus L. S. Rose 1944-7-11 44065 Placer Chambers lodge, Lake Tahoe. 1921 Comment
  SACT002890  Ceanothus cordulatus James Grove 1977-7-15 Placer 2000.0 Comment
  SBBG128618  Ceanothus cordulatus G. K. Helmkamp, E. A. Helmkamp 2012-6-19 19222 Placer Devil's Thumb Rd (Deadwood Rd), 1.2 mi S of its jct with Foresthill Rd 1648 Comment
  UCD143726  Ceanothus cordulatus F. Felix, E. Krimmel 2013-5-26 48 -A Placer North Fork/Chickering American River Reserve. 0.1 mile south of where Onion Creek crosses Cedars Road. Comment
  UCD22206  Ceanothus cordulatus Rex Palmer 1979-6-21 N 398 Placer Headwaters basin area of the North Fork of the American River Comment
  SEINET5339240  Ceanothus cordulatus P. A. Lehenbauer 1932-6-26 s.n. Placer Tahoe City Comment
  CAS-BOT-BC49327  Ceanothus cuneatus H. E. McMinn 1926-5-28 1749 Placer 6 mi. n. of folsom (Allen - local name) Must be near rose Spring - 5 mi. east of Roseville Comment
  SEINET5339272  Ceanothus cuneatus A. Beninghoff 1930-3-18 1720 Placer 5 mi east Lincoln, Ca. Comment
  SEINET5339275  Ceanothus cuneatus J. Ridley 1959-3-29 1 Placer 3 mi south of Auburn on Hwy 49 442 Comment
  UCR188843  Ceanothus cuneatus subsp. cuneatus George K. Helmkamp, E. A. Helmkamp 2007-3-25 11714 Placer Foothills, Northern Sierra Nevada Mountains, Forest Hill Road at the junction with the unnamed road to Lake Clementine 457 Comment
  RSA754660  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-4-3 DOB 1077 b Placer North Fork American River Watershet, Forest Hill Divide, near turn-off for Mammoth Bar OHV area, Auburn State Recreation Area, roadside on Old Foresthill Road, 1.8 road miles (2.9 km) NE of intersection with SR 49., 6.1 km 63 degrees true ENE of Auburn. 350 Comment
  UC1071068  Ceanothus cuneatus var. cuneatus J. E. Sowder, R. W. Lundh 1933-4-22 54 Placer 1 mi ne. Colfax Hwy; Colfax quad. 731 Comment
  UC1070650  Ceanothus fresnensis B. Bolt 1934-7-16 118 Placer 1 1/2 miles SE of Health Springs 2164 Comment
  UCD22199  Ceanothus fresnensis Beth Lowe Corbin 1982-8-4 215 Placer 1/4 mile NW of Onion Creek Campground. SW facing slope, 20% inclination. Full sun. Locally common. In opening in montane chaparral, inrocky, fine, sandy, granitic soil. Low, compact, rigidly branched shrub. Light dry bark, reddish twigs and fruit. Less than 1 ft tall, 3 ft across. 1950 Comment
  RSA399911  Ceanothus integerrimus Wm. Martin 1977-9-10 20277 Placer 2 miles S of Ranger Station, Blue Canyon Creek, Tahoe National Forest. Comment
  SBBG51061  Ceanothus integerrimus N. R. Zabriskie 1973-4-7 667 Placer Emigrant Gap,off Interstate 80 W of Donner Pass Comment
  UC1070730  Ceanothus integerrimus G. T. Nordstrom 1934-6-19 113 Placer .5 mi ne Mouth of Monumental Creek; Colfax quad., Tahoe Nat. For. 1463 Comment
  UC112945  Ceanothus integerrimus Katharine Brandegee 1908-7-17 Placer Blue Canyon Comment
  UC870581  Ceanothus integerrimus C. L. Hitchcock 1940-5-7 6336 Placer 1 mi w Baxter Comment
  UC870582  Ceanothus integerrimus C. L. Hitchcock 1940-5-7 6354 Placer ca 1 mi w Baxter Comment
  UCR146864  Ceanothus integerrimus Beecher Crampton 1973-10-2 9021 Placer Sierra Nevada Mountains, 1 mile east of Baxter 1280 Comment
  SACT002928  Ceanothus integerrimus Stanley Clark 1937-5-1 Placer Native shrub, to 6' tall, flowers white. Comment
  SEINET5339325  Ceanothus integerrimus T. Weaver 1974-9-22 s.n. Placer 10 miles west of Kyburz, Hgy 10 1219 Comment
  SEINET5339326  Ceanothus integerrimus C. Lane, H. N. Mozingo 1979-3-31 s.n. Placer Roadside near where N. Fork of Middle Fork of American River meet. 518 Comment
  CAS-BOT-BC51040  Ceanothus integerrimus var. macrothyrsus G. P. Rixford 1915-7-10 s.n. Placer Cisco Comment
  SEINET11192358  Ceanothus parvifolius P. L. Comanor, B. Clark, B. O'Malia 1969-5-15 s.n. Placer Approx. 3 miles west of Colfax plot (1.85 miles from end of railroad bridge Calif. 194), up a dirt road located 1/2 mile past Bear Creek bridge additional 4/10 mi. Comment
  CAS-BOT-BC63351  Ceanothus prostratus Mary Elizabeth Jump 1939-6-11 s.n. Placer Towle, near Alta. Comment
  CAS-BOT-BC63353  Ceanothus prostratus Mary Elizabeth Jump 1939-6-11 s.n. Placer Towle, near Alta. Comment
  CAS-BOT-BC63397  Ceanothus prostratus C. L. Hitchcock 1940-5-7 6330 Placer Ca. 1 mi. w. of Baxter. Comment
  SEINET192004  Ceanothus prostratus C. L. Hitchcock 1940-5-7 6330 Placer Ca. one mile west of Baxter Comment
  UC634807  Ceanothus prostratus Herbert L. Mason 1926-5-29 3289 Placer Donner Pass Road 3 1/10 mi e Crystal Springs; Donner Pass Road, e of Crystal Springs Comment
  UCD40935  Ceanothus prostratus Sook Hong 1989-5-20 13 Placer location unknown. 1615 Comment
  UC1071434  Ceanothus tomentosus J. E. Sowder, R. W. Lundh 1933-4-26 56 Placer 3 mi sw Gold Run; Colfax Quad. Comment
  UC634574  Ceanothus tomentosus Herbert L. Mason 1926-5-29 3286 Placer Donner Pass Road near Alta; Donner Pass Road near Alta Comment
  RSA121652  Ceanothus velutinus N. H. French 1934-6-19 428 Placer 1/4 mile W of Devil's Peak. 2104 Comment
  SEINET2441556  Centaurea maculosa George K. Helmkamp, E. A. Helmkamp 2009-8-12 15421 Placer Sierra Nevada Mountains: Forest Hill road, 14.0 miles northeast of the city of Foresthill (Westville 7.5' Q.). 1564 Comment
  CDA36362  Centaurea maculosa Bob Graton/Wendy West 2011-9-23 PDR# 1332991 Placer Squaw Valley Ski Resort. 0 Comment
  RSA186847  Centaurea maculosa T. C. Fuller 1965-8-10 13942 Placer South side of westbound lanes of Interstate 80 freeway, 1.4 miles east of Emigrant Gap; Sierra Nevada 1829 Comment
  UCR231863  Centaurea solstitialis George K. Helmkamp, E. A. Helmkamp 2010-10-16 17023 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 0.5 mile north of Forest Hill Road in Foresthill, near intersection with Mayflower Rd. 948 Comment
  UCD36122  Centaurium tenuiflorum Beecher Crampton 1952-11-9 924 Placer Placer County, 6 miles east of Auburn, 1 mile south of Meadow Vista. 457 Comment
  CAS-BOT-BC288621  Centromadia fitchii David D. Keck 1932-7-1 1592 Placer 2 miles N of Auburn, on Nevada City road 425 Comment
  CHSC96322  Centromadia fitchii L. P. Janeway 2006-8-24 8874 Placer Sacramento Valley. Along Hwy 193 about 3.5 km north of Lincoln. 41 Comment
  UC518988  Centromadia fitchii J. Clausen 1932-9-16 650 Placer 2.8 mi from Auburn (on the Sacramento Road) Comment
  SEINET7347793  Cercis canadensis J. Martin 1959-3-20 s.n. Placer 5 miles west of Colfax on US highway 40, then on a secondary road north 2 miles 366 Comment
  UC863548  Cercis occidentalis C. L. Hitchcock 1940-5-14 6411 Placer ca 6 mi n Colfax; Meier Ranch 762 Comment
  UCD164624  Cercis occidentalis Brandi Sorensen 1995-5-17 4 Placer .73 kilometers northwest of Colfax. 671 Comment
  UCD75744  Chaenactis douglasii Ellen Dean, M. Starbuck,; K. Mawdsley, G. Harrington, M. Bibbo, J. Poloske 2008-7-20 5208 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, ridge between Southern Pacific RR tracks and railroad tunnel to the west of Lakeview Canyon, large turnabout/parking area with off-road vehicle use. 2207 Comment
  UC565433  Chaenactis douglasii var. douglasii Chas. M. Belshaw 1935-6-7 1006 Placer near Baxter's Hotel (between Gold Run and Colfax); Sierra Nevada Mts. Comment
  UCR189300  Chaenactis douglasii var. douglasii George K. Helmkamp, E. A. Helmkamp 2007-7-27 12625 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  SEINET9341069  Chaenactis douglasii var. douglasii Unknown 1967-9-3 6790 Placer Placer Comment
  NY163287  Chaenactis rubricaulis H. A. Walker 1910-6-22 176 Placer Deer Park, in the Sierra Nevada 1970 Comment
  CAS-BOT-BC141722  Chamaebatia foliolosa Miss Francis D. Patterson 1921-4-1 s.n. Placer Dutch Flat Comment
  CAS-BOT-BC141723  Chamaebatia foliolosa C. B. Wolf 1931-9-11 1299 Placer 1 mile west of Gold Run - Sierra Nevada 914 Comment
  RSA451328  Chamaebatia foliolosa Wm. Martin 1971-9-10 20248 Placer 1 mile north of Gold Run on Hwy. 80 991 Comment
  UCD112939  Chamaebatia foliolosa K. O'Keefe 1995-6-4 s.n. Placer Along Forest Hill Road, 4 miles east of Forest Hill (town). Western Sierra foothills. 900 Comment
  OBI20165  Chamerion angustifolium David J. Keil 1978-7-23 12937 Placer Cisco Grove exit from I-80, just E of Nevada Co line 1768 Comment
  CAS-BOT-BC70196  Cheilanthes gracillima Geo. B. Grant 1906-7-15 7143 Placer About Lake Tahoe 2438 Comment
  UCR240949  Chenopodium George K. Helmkamp, E. A. Helmkamp 2012-9-25 19901 Placer Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap 1634 Comment
  RSA300473  Chimaphila umbellata subsp. occidentalis John Dourley, W. Wisura 1982-10-13 3859 Placer 7.3 mi SW of Emigrant Gap, along forestry rd. 19. 1402 Comment
  CAS-BOT-BC279798  Chondrilla juncea Lillian S. Mott; Phyllis Locker 1965-7-1 6572 Placer East side of a hill overlooking Folsom Lake, at Horseshoe Bar. East of Loomis Comment
  SEINET13331370 Image available Chondrilla juncea P. C. Martinelli, A. L. Rivers, R. Uriarte 1965-10-29 s.n. Placer Folsom Lake Comment
  SEINET13331376 Image available Chondrilla juncea P. C. Martinelli, A. L. Rivers, R. Uriarte 1965-10-29 s.n. Placer Horseshoe Bar Road, Folsom Lake Comment
  UCD33678  Chrysanthemum parthenium Beecher Crampton 1971-8-18 8754 Placer Placer County, Lake Tahoe, Tahoe Vista. 1920 Comment
  UCD110121  Chrysolepis sempervirens B. Crampton 1956-8-18 3765 Placer 2 miles north of Blue Canyon. 1524 Comment
  SEINET8947268  Chrysolepis sempervirens O. Boring s.n. Placer Lake Tahoe Comment
  SEINET7450569 Image available Chrysopsis breweri L. Miller 1933-8-6 s.n. Placer Lake Tahoe, near Homewood Comment
  SEINET11860557  Chrysothamnus nauseosus subsp. albicaulis C. F. Sonne 1884-9-14 s.n. Placer road to Tahoe Comment
  UC193532  Chrysothamnus viscidiflorus subsp. viscidiflorus C. F. Sonne 1886-9-14 Placer flat beyond Tollhouse; Road to Tahoe Comment
  CAS-BOT-BC190018  Cinna latifolia 1898-8-8 s.n. Placer Summit, Sierra Nevada. Comment
  UC30772  Cirsium andersonii Miss M. E. Parsons 1896-8-1 Placer Deer Park Inn, Lake Tahoe Comment
  UCD83648  Cirsium andersonii Albert Grigarick 2009-9-10 201 Placer Squaw Valley Resort, ca. 0.25 mi W of Squaw Village. 1920 Comment
  UCD130541  Cirsium arvense T. C. Fuller 1964-5-18 11980 Placer west side of Dutch Flat Hwy, 0.8 mile south of Dutch Flat P.O. Comment
  UC178909  Cirsium occidentale var. candidissimum Katharine Brandegee 1908-7-1 Placer Cape Horn Comment
  CAS-BOT-BC32805  Cirsium scariosum Alice Eastwood 1909-1-1 183 Placer Lake Tahoe Region. Sunnyside. Comment
  CAS-BOT-BC228885  Cistanthe umbellata F. Almeda 1993-7-24 7279 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  CAS-BOT-BC228891  Cistanthe umbellata A. A. Heller 1927-8-16 14448 Placer Near the summit of Donner Pass Comment
  CAS-BOT-BC162650  Clarkia Saichi Kawahara 1969-7-6 1461 Placer East bank of Indian Creek, Mel Henderson Ranch 1002 Comment
  RSA495975  Clarkia arcuata L. D. Gottlieb 1988-5-1 8805 Placer East of Colfax, on Iowa Hill Road, 2.3 miles east of junction with Canyon Road, or 0.7 mile west of bridge over North Fork American River; site is just beyond sign Auburn State Recreation Area Comment
  CAS-BOT-BC172406  Clarkia biloba subsp. brandegeeae Marcus E. Jones 1882-7-3 3340 Placer Colfax Comment
  CHSC98760  Clarkia biloba subsp. brandegeeae Samantha Mackey Hillaire 2007-6-7 1248 Placer North of Colfax, east side of Hwy I-80, north of Long Ravine railroad trestle. Plants along Carpenter Road. 658 Comment
  SEINET3860298  Clarkia biloba subsp. brandegeeae George K. Helmkamp, E. A. Helmkamp 2010-6-26 16379 Placer Sierra Nevada Mountains Foothills: junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax.; 0 616 Comment
  UCD147101  Clarkia biloba subsp. brandegeeae Chuck Hughes 2013-6-6 385 Placer Near margin of Camp Far West Reservoir. 6 Comment
  SD113934  Clarkia dudleyana Darley F. Howe 1948-5-23 1854 Placer American River 305 Comment
  CAS-BOT-BC163364  Clarkia purpurea subsp. purpurea Carl B. Wolf 1937-5-12 8613 Placer Sacramento Valley, 1 mi. No. of Lincoln 45 Comment
  UC718181  Clarkia purpurea subsp. purpurea Carl B. Wolf 1937-6-11 8772 Placer 1 mi n Lincoln; Sacramento Valley 45 Comment
  CAS-BOT-BC163412  Clarkia purpurea subsp. quadrivulnera Kate E. Phelps 1937-5-28 s.n. Placer Applegate Comment
  UCR194947  Clarkia purpurea subsp. quadrivulnera George K. Helmkamp, E. A. Helmkamp 2007-5-18 12037 Placer Northern Sierra Nevada Mountains Foothills, along the connection road from CA-49 to Forest Hill Road; 1.1 miles east of the crossing of the junction of the North and West Forks of the American River 229 Comment
  UC1004178  Clarkia purpurea subsp. quadrivulnera W. A. Weber and Lewis S. Rose 1953-5-19 8384 Placer 5 mi n Roseville (on road to Lincoln) 45 Comment
  CAS-BOT-BC438831  Claytonia parviflora subsp. parviflora George K. Helmkamp; Mary Alice Barnes 2013-5-3 20476 Placer Foothills, northern Sierra Nevada Mountains: Mosquito Ridge Road, 1.1 miles south of Forest Hill Road. 962 Comment
  SEINET5727675 Image available Claytonia perfoliata Nancy Carlsen 1971-1 21 Placer Rollins Lake Road at Rollins Lake, 3 miles north of Interstate Highway 80, on west side of road, north of the lake.; Rollins Lake Comment
  CAS-BOT-BC443631  Claytonia perfoliata subsp. perfoliata Catherine A. Toschi 1963-3-23 63 :82 Placer 3 miles east of Auburn on the American River 396 Comment
  CAS-BOT-BC443738  Claytonia rubra subsp. rubra W. R. Dudley 1900-6-29 s.n. Placer Near Tahoe City Comment
  UC147596  Claytonia rubra subsp. rubra Harriet A. Walker 1908-6-23 1247 Placer Blue Canyon Comment
  LA207188  Clematis lasiantha Annetta M. Carter; 1937-4-25 1249 Placer Between Folsom and Auburn, 6.5 mi SE of Loomis 152 Comment
  CAS-BOT-BC92556  Clematis ligusticifolia H. E. McMinn 18 Placer Tahoe. Comment
  RSA781185  Collinsia heterophylla George K. Helmkamp, E. A. Helmkamp 2010-4-17 15897 Placer Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill 308 Comment
  UC138744  Collinsia heterophylla Anna King 1902-5-11 Placer Newcastle Comment
  UC1751291  Collinsia linearis Mrs. M. M. Hardy 1893-1 Placer Comment
  JEPS111193  Collinsia parviflora Steve Matson 2005-7-4 1367 Placer Martis Valley, southeast of Truckee, National Recreation Area, south of Highway 267 and south of Martis Creek on western edge of Northstar subdivision; on trail near stream. 39.2915 N, 120.1352 W: Elevation 5,900 ft. 1798 Comment
  SBBG27379  Collinsia parviflora C. L. Hitchcock 1995-5-14 6395 Placer Meier Ranch, ca. 6 mi N of Colfax Comment
  UCD21865  Collinsia parviflora Rex Palmer 1979-6-20 N 344 Placer Headwaters basin area of the North Fork of the American River Comment
  RSA21254  Collinsia sparsiflora var. collina Carl B. Wolf 1937-3-30 8368 Placer Sacramento Valley, 6 miles N of Roseville on road to Lincoln. 49 Comment
  UC885593  Collinsia tinctoria Marcus E. Jones, A. M. 1882-7-3 3433 Placer Colfax Comment
  UCR219647  Collinsia tinctoria George K. Helmkamp, E. A. Helmkamp 2010-6-26 16369 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  OBI49270  Collinsia torreyi Lewis S. Rose 1940-6-2 40456 Placer Truckee River, 10 mi N of Tahoe City 1829 Comment
  SEINET5796623 Image available Collinsia torreyi L. S. Rose 1941-1 41320 Placer Chambers Lodge (McKinney), Lake Tahoe; 39.073241 -120.1413 1900 Comment
  UCD42933  Collinsia torreyi C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 302 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  SEINET13406843  Collinsia torreyi var. torreyi P. A. Lehenbauer, R. E. L. 1922-7-9 784 Placer Lake Tahoe, between Homewood and McKinny's [Resort]. Comment
  UC147574  Collinsia torreyi var. torreyi Harriet A. Walker 1908-6-23 1238 Placer Blue Canyon 1432 Comment
  UC566097  Collinsia torreyi var. torreyi B. Bolt 1934-7-11 99 Placer Tahoe National Forest, Cascade Lake Cascade Lake; Tahoe National Forest, Cascade Lake 2042 Comment
  SEINET13406894  Collinsia torreyi var. wrightii A. A. Heller 1909-7-16 9855 Placer Summit. 2134 Comment
  CDA15683  Collomia grandiflora G. F. Hrusa, J. Glazner 1999-7-18 15233 Placer Lake Tahoe; Wooded slopes betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. 1905 Comment
  JEPS111288  Collomia grandiflora Steve Matson 2005-7-4 1372 Placer Martis Valley, southeast of Truckee, National Recreation Area (Army Corps of Engineers), south of Highway 267 and south of Martis Creek and west of Northstar subdivision; near stream. 39.2899 N, 120.1367 W: elevation 5,900 ft. 1798 Comment
  UC1980585  Collomia grandiflora C. Rose Broome, Crissie Cagle 1978-8-2 2311 Placer Laing Rd. (frontage rd. to Rancho Sierra Inn) just S of I-80 at Emigrant Gap exit. Mountain meadow. Comment
  UC52750  Collomia grandiflora W. A. Setchell 1901-7-9 Placer Cascades Lake Tahoe, Rubicon Park Comment
  CDA11992  Collomia heterophylla G. F. Hrusa 1995-5-2 12173 Placer Sierra Nevada; 1 km. east of Mosquito Ridge Rd. crossing of North Fork of Middle Fork of the American River. Comment
  RSA409231  Collomia heterophylla Fay A. MacFadden 1934-7-1 12724 Placer Canyon Creek - Dutch Flat. Comment
  UCD41265  Collomia heterophylla Ellen Dean; Art Shapiro, Adrienne Shapiro 2003-5-12 1722 Placer East of Hwy 80 and town of Colfax, east side of the canyon of the North Fork of the American River. Along Iowa Hill Road, between 0.3 and 0.6 road miles east and uphill of the bridge over the river. 457 Comment
  UCD74240  Collomia tinctoria Jennifer W. Burt 2005-7-13 120 Placer Powder Bowl' abandoned ski area (South of Alpine Meadow Road off Hwy 89 near Alpine Meadows) - collected from center of an abandoned ski run. 1980 Comment
  UCR218247  Conium maculatum George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16433 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 415 Comment
  UCR194976  Convolvulus arvensis George K. Helmkamp, E. A. Helmkamp 2007-5-18 11995 Placer Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 4.3 miles northeast of the bridge over the junction of North and West Forks of the American River 485 Comment
  UCR257639  Conyza canadensis George K. Helmkamp, Elizabeth Helmkamp 2012-10-13 20017 Placer Sacramento Valley, Granite Bay, Folsom Lake; Park Road 1.8 miles north of the east end of Douglas Blvd. 146 Comment
  SBBG58846  Corallorhiza maculata M. N. Ackley -Jun-1925 683 Placer Towle 1127 Comment
  UCD15607  Corallorhiza maculata Lisa Montany 1985-5-18 25 Placer Mosquito Ridge Rd, 18.6 miles west of Forest Hill Rd. Comment
  POM9886  Corallorhiza maculata E. Keyes 1920-8-21 s.n. Placer Lake Tahoe, Mt. Ellis [=Ellis Peak?] Comment
  SEINET6166293  Corallorhiza maculata P. Lehenbauer 1933-8-6 s.n. Placer Near Homewood [West side Lake Tahoe] Comment
  UCD21873  Cordylanthus tenuis Beth Lowe Corbin 1982-8-4 211 Placer 1/3 mile west of Onion Creek campground. 1889 Comment
  SCFS1122  Cordylanthus tenuis E. Krimmel, Michael Hamilton 2013-8-13 Placer NFAm. Dry meadows, Chickering Reserve. Comment
  JEPS88781  Cordylanthus tenuis subsp. tenuis T. I. Chuang and F. M. Chuang 1990-8-11 7820 Placer Gold Run Comment
  RSA755612  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2009-8-12 15424 Placer Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  UC579566  Cordylanthus tenuis subsp. tenuis B. Bolt 1934-7-23 163 Placer nw Damascus (end of travelled road from Westville); Tahoe National Forest, Colfax Quadrangle, North Fork of Amer 1463 Comment
  UCD123161  Cordylanthus tenuis subsp. tenuis G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12629 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCR189638  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2007-7-27 12629 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  UCR206591  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2009-7-16 15203 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  RSA523461  Cordylanthus tenuis subsp. tenuis L. R. Heckard, T. I. Chuang 1969-7-26 2332 Placer Just north of Lake Alta. 1067 Comment
  POM77912  Cornus nuttallii Marcus E. Jones 1882-5-28 3304 Placer Emigrant Gap Comment
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Sep 7 2010
  UC193323  Cornus nuttallii C. F. Sonne 1891-6-7 Placer ravine below Gold Run Comment
  UCD14939  Cornus nuttallii John Warren 1977-6-4 44 Placer California, Placer Co.; 3.2 miles northwest of the junction with Interstate-80 along Highway 20; Comment
  UCD15249  Cornus nuttallii Ted Graber 1984-5-28 13 Placer Along Frontage Road in the town of Baxter. 1158 Comment
  SEINET8083566  Cornus nuttallii W. Priest 1956-4-16 s.n. Placer On U.S. Highway 40 just west of Baxter. 1067 Comment
  JEPS50178  Cornus sessilis Elizabeth Price 1932-4-10 Placer Dutch Flat Comment
  CAS-BOT-BC401884  Corydalis caseana subsp. caseana C. F. Sonne 1885-8-2 12 Placer Sierra Nevada Mts. On Truckee River Comment
  JEPS111217  Crepis occidentalis Steve Matson 2005-6-15 1282 Placer Martis Valley, ca 3 miles southeast of Truckee, north of 267, 500 meters west of Martis Creek; 39.3038 N, 120.1254 W; Elevation 5840 ft. 1780 Comment
  JEPS59439  Crepis occidentalis Ezra Brainerd and Viola B. Baird 1915-7-25 159 Placer Deer Park Sierra Nevada Mts. 1950 Comment
  CAS-BOT-BC376453  Crepis occidentalis subsp. conjuncta G. L. Stebbins 1969-7-20 6948 Placer Ridge south of North Fork, American River, between Sailor Canyon and Wildcat Canyon 1950 Comment
  CDA35298  Croton setiger T. C. Fuller 1958-7-7 1999 Placer 2 miles north of Roseville. 0 Comment
  UC1063924  Cryptantha affinis G. T. Nordstrom 1934-6-19 110 Placer 0.5 mi ne mouth of Monumental Creek; Tahoe National Forest, Colfax Quad. 1371 Comment
  UCR207860  Cryptantha flaccida George K. Helmkamp, E. A. Helmkamp 2009-4-22 14561 Placer Sierra Nevada Mountains Foothills, Forest Hill Road 1.9 mile east of its junction with CA-49 and the North and Middle Forks of the American River 399 Comment
  UCD22124  Cryptantha simulans Rex Palmer 1979-6-21 N 381 Placer Headwaters basin area of the North Fork of the American River Comment
  POM120485  Cryptogramma acrostichoides Marcus E. Jones 1882-06 s.n. Placer Emigrant Gap. Comment
  UCD69351  Cryptogramma acrostichoides S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 s.n. Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  JEPS115010  Cuscuta pentagona Lowell Ahart 2007-11-13 14592 Placer On Xanthium strumarium, on the strand of Camp Far West Reservoir, about 300 yards west of Bear River, about 1/8 mile east of McCourtney Road, about 5 1/2 miles (air) northeast of Sheridan 73 Comment
  SACT000852  Cynosurus echinatus Michael Baad 1977-6-3 Placer Blue Oak woodland. Roadside. 609.6 Comment
  CAS-BOT-BC70579  Cystopteris fragilis A. A. Heller 1917-8-14 12931 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  CAS-BOT-BC70581  Cystopteris fragilis Alice Eastwood 1912-6-15 414 Placer Deer Park, Lake Tahoe Region Comment
  UCD22245  Danthonia californica Beth Lowe Corbin 1982-8-3 174 Placer Onion Creek Campground. SW facing slope. Sun. Uncommon. Open, dry meadow of mixed conifer forest in fine, sandy, granitic soil. Perennial, forming a loose clump. 1841 Comment
  UCR151943  Danthonia californica var. americana Beecher Crampton 1964-7-21 7117 Placer Sierra Nevada Mtns, 0.5 mile WNW of Cisco Grove on US Hwy 40 1707 Comment
  CAS-BOT-BC194329  Danthonia unispicata John Thomas Howell 1943-7-22 18699 Placer Summit Valley Comment
  SACT000901  Danthonia unispicata Michael Baad 1983-8-11 Placer On trail to Mildred Ridge. 2133.0 Comment
  UCD102615  Darmera peltata A. S. Crafts 1926-5-1 803 Placer American River Canyon Comment
  CAS-BOT-BC141778  Dasiphora fruticosa F. Almeda 1993-7-25 7292 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass 1920 Comment
  SEINET6647468  Dasiphora fruticosa P. B. Kennedy, S. B. Doten 1901-8-10 275 Placer Summit of Tinker Knob. Comment
  CAS-BOT-BC173277  Delphinium Saichi Kawahara 1969-5-24 876 Placer East of cabin near mine shaft, Mel Henderson Ranch, east bank of Indian Creek 1002 Comment
  CAS-BOT-BC8988  Delphinium depauperatum F. Almeda 1993-7-24 7259 Placer About 15 miles SE of Interstate Hwy. 80 at Soda Springs on trail to Upper Sheep Valley 2133 Comment
  SCFS1167  Delphinium glaucum E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Drying creek bed at Chickering. Comment
  CAS-BOT-BC8779  Delphinium gracilentum L. S. Smith 1925-6-3 1619 Placer Below Yankee Jim, Forest Hill Divide Tahoe National Forest 762 Comment
  JEPS23399  Delphinium gracilentum Leland S. Smith 1925-6-3 1619 Placer Yankee Jims, on Forest Hill divide, about 2 miles due west of Forest Hill; Tahoe National Forest 1584 Comment
  UC854192  Delphinium nuttallianum C. L. Hitchcock 1940-5-7 6334 Placer ca 1 mi w Baxter Comment
  UCD96118  Delphinium nuttallianum A. A. Heller 1917-6-17 12700 Placer Near the Yuba river below Cisco. Comment
  POM308734  Delphinium patens Betty J. Jorgensen 1944-7-23 529 Placer Near Soda Springs. Comment
  CAS-BOT-BC121998  Delphinium variegatum Gordon H. True 1971-4-9 6459 Placer Northern limits of Lincoln 48 Comment
  RSA43808  Delphinium variegatum subsp. variegatum D. F. Howe 1948-5-21 s.n. Placer [Unspecified] 457 Comment
  UC112865  Dendromecon rigida Katharine Brandegee 1908-6-5 Placer Magra R. R. Station Comment
  UCR250167  Dendromecon rigida George K. Helmkamp, Mary Alice Barnes 2013-5-3 20483 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 mi. east (92 deg. ) of Foresthill 829 Comment
  POM97713  Dendromecon rigida I. E. Diehl 1902-7-7 s.n. Placer Colfax Comment
  SACT000905  Deschampsia cespitosa D. Meyer 1983-8-20 Placer Moist roadside meadow with vegetation following residential construction. 2000.0 Comment
  UCD42889  Deschampsia cespitosa C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 257 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  POM114869  Deschampsia danthonioides Marcus E. Jones 1882-6-28 s.n. Placer Emigrant Gap. Comment
  SACT000912  Deschampsia danthonioides Michael Baad 1983-7-1 Placer Road east of Lake Putt from Blue Canyon exit at I80. 1615.44 Comment
  UCD96974  Deschampsia danthonioides Chuck Hughes 2010-7-13 237 Placer Within 50 ft of north side of Alpine Meadows Road. 1899 Comment
  CHSC82679  Deschampsia elongata Lowell Ahart 2002-7-22 9920 Placer 50 yards northeast of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1780 Comment
  SACT000939  Deschampsia elongata 1984-6-23 Placer 9.76 km from I80 Frontage Rd, moist shday roadside ditch, oak pine, manzanita associated. 978.0 Comment
  SACT000944  Deschampsia elongata D. Meyer 1983-8-7 Placer East bank of river 1879.0 Comment
  SACT000948  Deschampsia elongata D. Meyer 1984-7-8 Placer At Lakeside. 1758.0 Comment
  SACT000956  Deschampsia elongata D. Meyer 1983-7-30 Placer Roadside ditch 1853.18 Comment
  SACT000959  Deschampsia elongata D. Meyer 1984-6-3 Placer 1.6 km north of Applegate, shady oak woodland, moist area. 606.0 Comment
  UC1131467  Deschampsia elongata H. S. Yates 1936-8-9 5986 Placer 2 mi. s.w. Martis Peak; Truckee Quad. Comment
  UCR249609  Deschampsia elongata George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20833 Placer Northern Sierra Nevada Mountains Foothills, junction of Yankee Jim's Road and Shirttail Canyon Road, NW of Foresthill 463 Comment
  UCSB32011  Descurainia incisa 1885-06 Placer Sierra Nevada Mountains Comment
  UCD33722  Dicentra formosa Beecher Crampton 1972-6-20 8825 Placer Upslope from Bear Valley, State Hwy. 20E. 1402 Comment
  UCR115101  Dicentra formosa G. Fred Hrusa 1995-5-20 12165 Placer Sierra Nevada Mtns., Mosquito Ridge Road, c. 5 km beyond crossing of North Fork of Middle Fork of the American River. 700 Comment
  UCR235422  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2012-5-11 18955 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road 1041 Comment
  CAS-BOT-BC402452  Dicentra formosa subsp. formosa A. A. Heller 1917-6-19 12732 Placer Emigrant Gap 1615 Comment
  CAS-BOT-BC402453  Dicentra formosa subsp. formosa A. A. Heller 1917-6-19 12732 Placer Emigrant Gap 1615 Comment
  UC855132  Dicentra uniflora Alice Eastwood Jun 15 1912-Jun 19 1912 375 Placer Deer Park; Lake Tahoe Region Comment
  UCD139236  Dichelostemma capitatum Craig P. Martz 1982-3-7 13 Placer on Sierra College Blvd., 2.3 miles north of Douglas Blvd. intersection. 140 Comment
  CAS-BOT-BC483625  Dichelostemma capitatum Kate E. Phelps 1937-5-28 s.n. Placer Applegate Comment
  UCD148230  Dichelostemma capitatum subsp. capitatum Robert E. Preston 2013-3-16 2891 Placer 4 mi E of Lincoln, at jct Newcastle Rd and Clark Tunnel Rd. 112 Comment
  UCR234214  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, E. A. Helmkamp 2011-4-10 17172 Placer Sacramento Valley, along Riosa Road, 2.3 miles east of Sheridan 43 Comment
  RSA537649  Dichelostemma capitatum subsp. capitatum Barbara Ertter, David M. Thompson 1989-4-8 8150 Placer Iowa Creek Road 2 miles from I-80 near entrance to Auburn State recreation area at creek crossing 518 Comment
  SEINET8476518  Dichelostemma capitatum subsp. capitatum K. Terrell 1962-1 s.n. Placer North Fork American River. 396 Comment
  SEINET8476701  Dichelostemma capitatum subsp. pauciflorum F. Martin 1962-1 72 Placer 2 miles E of Auburn, North Fork of American River. 274 Comment
  SD257113  Dichelostemma volubile George K. Helmkamp, Amy Barnes 2014-4-23 22785 Placer Sierra Nevada Mountains Foothills: Old Forest Hill Road, 0.4 mile northeast of its junction with CA-49 at North Fork American River (Auburn 7.5'Q) 289 Comment
  SBBG115821  Digitaria ischaemum B. Crampton 1965-9-13 7498 Placer Gold Run, Interstate 80 975 Comment
  UCD63951  Digitaria ischaemum Beecher Crampton 1965-9-13 7498 Placer Gold Run, Interstate Hwy. 80. 975 Comment
  SACT000966  Digitaria sanguinalis D. Meyer 1984-10-24 Placer Roadside next to cultivated rice field. 27.3 Comment
  CAS-BOT-BC150480  Diplacus grandiflorus G. L. Stebbins, Jr. 1952-6-22 5093 Placer 2 miles southeast of Colfax. Along American River north of bridge on road to Iowa Hill 350 Comment
  SEINET13700513  Diplacus kelloggii C. Aarstad, H. Mozingo 1979-4-1 s.n. Placer Eldorado Creek near junction with North Fork of Middle Fork of American River, Mosquito Ridge Road to French Meadows. 518 Comment
  CAS-BOT-BC153697  Diplacus mephiticus Mrs. Marian Campbell 1920-6-26 s.n. Placer Summit Comment
  SD114411  Diplacus torreyi Darley F. Howe 1971-6-29 4747 Placer 1.4 miles east of Forest Hill 1096 Comment
  SEINET14196725  Diplacus tricolor D. F. Erskine 1941-4-25 18 Placer 1 mile S of Roseville. 76 Comment
  CAS-BOT-BC151315  Diplacus tricolor Ella Dales Cantelow 1940-5-13 4424 Placer S.E. of Wheatland Comment
  UCD37040  Distichlis spicata Beecher Crampton 1956-7-17 3721 Placer Placer County, Blue Canyon. 1432 Comment
  CAS-BOT-BC229024  Dittrichia graveolens George K. Helmkamp; E. A. Helmkamp 2011-11-28 18480 Placer Sacramento Valley/Sierra Nevada Foothills: along CA-193 (Lincoln-Newcastle Hwy), 2.0 miles east of East Street in Lincoln, near Stagecoach Ln. 125 Comment
  HSC34456  Dodecatheon alpinum A. M. Montalvo, J. D. Ackerman 1974-7-20 388 Placer Alpine meadows Ski Area W of Deer Park and Hwy. 89 2134 Comment
  SEINET8561435  Dodecatheon clevelandii F. Martin 1962-3-16 68 Placer 2 miles E of Auburn, above the North Fork of the Yuba River. 274 Comment
  JEPS126262  Dodecatheon jeffreyi Steve Matson 2000-7-6 277 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; 600 meters north of Highway 267, east of Martis Creek along east fork of Martis Creek. Comment
  SEINET8039318  Downingia bicornuta D. F. Erskine 1941-4-26 9 Placer 1 mile S of Roseville. 76 Comment
  JEPS14454  Downingia bicornuta var. picta R. E. Arp 1932-4-28 4 Placer Roseville Comment
  POM264726  Downingia bicornuta var. picta Lincoln Constance 1941-5-28 2823 Placer 2 miles north of Lincoln, Sacramento Valley. 61 Comment
  UC660004  Downingia bicornuta var. picta Lincoln Constance 1941-5-28 2823 Placer 2 mi n Lincoln; Sacramento Valley 60 Comment
  OBI20963  Downingia ornatissima Carl B. Wolf 1937-5-12 8615 Placer Sacramento Valley, 1 mi N of Lincoln 46 Comment
  UCD55133  Downingia pusilla Robert E. Preston 2002-5-3 1788 Placer Ca. 3 mi. SSW of Lincoln; N of Orchard Creek. 35 Comment
  JEPS72056  Draba albertina Gladys L. Smith and Betsy Wilson 1972-6-23 3196 Placer between Tiegel and Meadow Chairlifts (Alpine Meadows); , btw Tiegel and Meadow Chairlifts 2133 Comment
  UCD44469  Draba lonchocarpa var. lonchocarpa C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1835 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
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Feb 22 2009
  POM143043  Draba nemorosa C. F. Sonne 1897-7-18 s.n. Placer Tinker s Knob 2744 Comment
  UC197362  Draba paysonii var. treleasei C. F. Sonne 1897-7-18 Placer Sierra Nevada Mts., Tinker's Knob 2743 Comment
  CDA12294  Draperia systyla G. F. Hrusa 1989-5-2 7067 Placer Sierra Nevada; 6 km. east of Mosquito Ridge Rd. crossing of North Fork of Middle Fork of the American River. Comment
  SEINET2441337  Draperia systyla George K. Helmkamp, E. A. Helmkamp 2009-8-12 15426 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5' Q.). 1662 Comment
  SEINET6691346  Drymocallis hansenii P. B. Kennedy, S. B. Doten 1901-8-18 417 Placer Talbot's Home Camp, 7 miles from French Meadows Comment
  CAS-BOT-BC157897  Drymocallis lactea var. lactea John H. Thomas; Hazelle A. Thomas 1956-7-21 6113 Placer Sierra Nevada. Vicinity of Donner Pass, about 80 miles northeast of Sacramento 2377 Comment
  SEINET6409453  Dryopteris arguta H. N. Mozingo 75 -5 Placer 2 miles east of Auburn, middle fork of American River Comment
  SEINET5733104 Image available Dudleya cymosa John J. Geibel 1965-1 34 Placer Middle Fork of American River, ca. 13 miles east of Forest Hill.; Foresthill 488 Comment
  UC830916  Dudleya cymosa Marcus E. Jones 1882-6-28 3346 Placer Emigrant Pass Comment
  CAS-BOT-BC428206  Dudleya cymosa subsp. cymosa Marcus E. Jones 1882-4-28 3346 Placer Emigrant Gap Comment
  UCD19111  Dysphania pumilio A. M. Shapiro 1987-10-16 s.n. Placer Southern Pacific Right-of-way. 2103 Comment
  SACT001038  Echinochloa crus-galli var. zelayensis Josephine Van Ess 1976-7-8 Placer Collected .25 miles north of Roseville Waterworks. Moist ditch. Comment
  CDA33192  Eleocharis acicularis G. D. Barbe 1977-7-2 Placer At water s edge, shallow arm of Martis Creek Lake, Day Use area, south of Truckee-Tahoe airport. Comment
  CAS-BOT-BC113434  Eleocharis bella Marcus E. Jones 1882-6-29 2905 Placer Emigrant Gap Comment
  CHSC82701  Eleocharis bella Lowell Ahart 2002-7-22 9909 Placer On the south side of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1773 Comment
  UCD43347  Eleocharis bella C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-12 715 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  UC839120  Eleocharis engelmannii A. A. Heller 1917-8-12 12874 Placer Southern Pacific reservoir W of Emigrant Gap Comment
  POM292582  Eleocharis palustris Lyman Benson 1932-7-31 4015 Placer Donner Lake. Sierra Nevada mtn range, Truckee River watershed. 1890 Comment
  UCD61593  Elymus elymoides R. Tofsrud 1951-7-1 Placer Hwy 40, above Baxter, 3/4 mi. below drinking station. Comment
  SACT001073  Elymus elymoides subsp. californicus James Grove 1977-7-15 Placer 2000.0 Comment
  CDA36869  Elymus glaucus CDFA Staff 1995-6-2 s.n. Placer Dry Creek. 0 Comment
  RSA129234  Elymus glaucus G. T. Nordstrom 1934-6-21 141 Placer 3/4 mile W. of Mammoth Springs; Colfax 1677 Comment
  RSA59402  Elymus glaucus E. K. Balls 1950-9-8 15721 Placer Lakes Center Public Campground 2043 Comment
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Sep 16 2014
  SACT001095  Elymus glaucus D. Meyer 1983-6-18 Placer Moist roadside stream. 667.0 Comment
  SACT001116  Elymus glaucus Michael Baad 1976-8-4 Placer Collected on the banks amoung rocks and in gravel beside creek. White fir forest with openings. 1975.0 Comment
  SACT001141  Elymus glaucus D. Meyer 1984-6-23 Placer 0.96 km from I80 Frontage Road, shady hillside with oak and douglas fir. 978.0 Comment
  UCD22250  Elymus glaucus Rex Palmer 1979-7-12 N 615 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD61795  Elymus glaucus Beecher Crampton 1956-7-17 3724 Placer Railroad embankment, Blue Canyon. 1432 Comment
  RSA126909  Elymus glaucus subsp. jepsonii G. T. Nordstrom 1934-6-19 121 Placer 1/2 mile N.E. of Mouth of Monumental Creek; Colfax 1463 Comment
  SACT001108  Elymus glaucus subsp. jepsonii Josephine Van Ess 1977-6-3 Placer Collected at bend in road about .75 mile west of highway 49. Oak woodland, moist. 420.7 Comment
  CHSC68068  Elymus trachycaulus subsp. subsecundus James D. Jokerst 1986-7-12 2687 Placer Trial from The Cedars, high Sierra Nevada SW of Donner Lake, on N side of river. Comment
  CAS-BOT-BC204400  Elymus trachycaulus subsp. trachycaulus L. S. Smith 1925-7-8 1662 Placer Tahoe National Forest. Cedars near American River 1798 Comment
  UCD43095  Elymus trachycaulus subsp. trachycaulus C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-19 463 Placer Lake Tahoe Basin; Blackwood Canyon. UTM's 10 743067E, 4332664N. 1938 Comment
  SACT001152  Elymus triticoides Josephine Van Ess 1977-5-20 Placer Collected near Duty Creek. Moist roadside. 85.4 Comment
  CDA18052  Elytrigia repens T. Morgan 1999-7-19 PDR 1223646 Placer 2- 2 ft. x 2 ft. areas growing from old ball and burlaped birches in holding area at Green Thumb Landscaping, 2865 Hillcrest Ave., Tahoe City. 0 Comment
  UCR231878  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2010-10-16 17032 Placer Northern Sierra Nevada Mountains Foothills, Sugar Pine Road at the southwest corner of Sugar Pine Reservoir near the dam 1128 Comment
  UCR241760  Epilobium brachycarpum George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19809 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 10.4 miles northeast of Hidden Treasure Road, 0.45 mi. ESE of Whisky Hill 1677 Comment
  CAS-BOT-BC171701  Epilobium canum subsp. latifolium Margaret Williams 1961-9-30 s.n. Placer West of Donner Pass near Lincoln Peak Comment
  UC1035660  Epilobium canum subsp. latifolium Marian M. Enzler 1939-9-26 2 Placer on Hwy 49 4 mi from Auburn (Placer-El Dorado Co. line); Junction of North and Middle Forks of American River 198 Comment
  UCR190705  Epilobium canum subsp. latifolium George K. Helmkamp, E. A. Helmkamp 2007-9-14 12967 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 15 miles east of Foresthill 832 Comment
  CAS-BOT-BC539340  Epilobium ciliatum subsp. ciliatum James A. Neilson, Jr. 1970-7-18 1563 Placer Tahoe Basin, 2 mi NE of Tahoe City [exact location unknown] 1920 Comment
  CHSC72877  Epilobium ciliatum subsp. ciliatum L. P. Janeway; Eric Schroder 1998-7-13 5745 Placer Lake Tahoe Basin Management Unit. North side of Blackwood Creek, 1.7 mi west of Lake Tahoe. Meadow complex. 1938 Comment
  CHSC73963  Epilobium ciliatum subsp. ciliatum Susi Urie 1998-8-28 98 -138 Placer Lake Tahoe Basin--National Forest. Middle of Page Meadows; about 2 mi west of Lake Tahoe and Sunnyside. 2115 Comment
  CHSC73965  Epilobium ciliatum subsp. ciliatum Susi Urie 1998-8-25 98 -090 Placer Lake Tahoe Basin--National Forest. About 0.2 mi north of Lake Tahoe; meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  CHSC74237  Epilobium ciliatum subsp. ciliatum Susi Urie; Eric Schroder 1998-9-11 98 -337 Placer Lake Tahoe Basin--National Forest. Antone Meadows; along Burton Creek, about 2.1 mi northwest of Lake Tahoe. 2072 Comment
  CHSC74849  Epilobium ciliatum subsp. ciliatum Susi Urie; Eric Schroder 1998-9-12 98 -355 Placer Lake Tahoe Basin--National Forest. Meadow complex on the south side of Ward Creek about 1.6 mi west of Lake Tahoe and Sunnyside. 1987 Comment
  UC1748360  Epilobium ciliatum subsp. ciliatum Susi Urie 1998-8-25 98 -90 Placer about 0.2 mi N of Lake Tahoe (large meadow complex between Kings Beach and Tahoe Vista) 1901 Comment
  UCD22094  Epilobium ciliatum subsp. ciliatum Rex Palmer 1979-7-26 N 870 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD44585  Epilobium ciliatum subsp. ciliatum C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 1951 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  SEINET12874268  Epilobium ciliatum subsp. ciliatum L. R. Miller 1934-7-8 s.n. Placer Cisco Comment
  JEPS102473  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2001-10-10 9355 Placer French Meadows Reservoir, about 1/4 mile NE of boat or trail access area on NW side of reservoir, about 3/4 mile SW of bridge across Middle Fork of American R, about 1 3/4 mi SW of Ahart Camp, about 22 mi (air) NE of Forest Hill. Along river. 1591 Comment
  CDA13696  Epilobium densiflorum G. F. Hrusa, J. Glazner 1997-8-3 14056 Placer Sierra Nevada; Corner of Hwy 89 & Squaw Valley Rd. Comment
  POM271516  Epilobium hallianum Lyman Benson 1942-7-2 11249 Placer Highway junction 1 mile west of Truckee. Truckee River drainage area. 1829 Comment
  UCD42979  Epilobium hallianum C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 348 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  UCD22091  Epilobium obcordatum Rex Palmer 1979-7-25 N 671 Placer Headwaters basin area of the North Fork of the American River Comment
  SEINET6644386 Image available Epilobium oregonense A. A. Heller 1919-1 13302 a Placer near Yuba River below Cisco 1676 Comment
  CAS-BOT-BC57828  Equisetum hyemale subsp. affine Geo. B. Grant 1906-7-15 6936 Placer Tahoe Tavern, lake Tahoe. 1889 Comment
  CHSC74178  Equisetum laevigatum Susi Urie 1998-9-2 98 -214 Placer Below Hwy 28, between the highway and Lake Forest Road; about 0.2 mi noth of Lake Tahoe. 1908 Comment
  SBBG8946  Equisetum laevigatum E. R. Blakley 1960-9-3 3822 Placer Kings Beach, Lake Tahoe 1905 Comment
  SCFS1225  Eremogone E. Krimmel 2013-6-2 Placer North Fork American River, top of Foresthill Road. Comment
  UCD22167  Eremogone kingii var. glabrescens Rex Palmer 1979-6-19 N 270 Placer Headwaters basin area of the North Fork of the American River Comment
  SEINET5336754  Eremogone kingii var. glabrescens K. Thorne, Jody Chandler 1987-6-26 5448 Placer Blue star memorial Hwy rest stop, Sierra Nevada Mountains. Comment
  UCR209737  Ericameria George K. Helmkamp, E. A. Helmkamp 2009-8-12 15428 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  CAS-BOT-BC286639  Ericameria bloomeri G. W. Dunn 1895-9-3 s.n. Placer Summit Comment
  CAS-BOT-BC286642  Ericameria bloomeri Elsie Zeile Lovegrove 1951-9-22 s.n. Placer Al Tahoe Comment
  CAS-BOT-BC286643  Ericameria bloomeri L. R. Abrams 1917-9-11 6776 Placer Truckee Comment
  UC894773  Ericameria nauseosa var. speciosa Lewis S. Rose 1938-9-14 38258 Placer Cisco South Fork of Yuba River 1615 Comment
  CAS-BOT-BC294521  Erigeron breweri var. breweri M. E. Parsons 1910-8-1 s.n. Placer Sunnyside, Lake Tahoe Comment
  JEPS71581  Erigeron compositus Gladys L. Smith 1972-6-20 3215 Placer open plateau about terminus of summit chairlift; Ward Peak 2621 Comment
  SJSU6637  Erigeron coulteri H. T. Harvey 1958-8-19 Placer Sugar Bowl about three miles due south of Donner Summit 2164 Comment
  CAS-BOT-BC300665  Erigeron foliosus var. hartwegii G. K. Helmkamp; E. A. Helmkamp 2010-6-26 16391 Placer Sierra Nevada Mountains Foothills: Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  CAS-BOT-BC300667  Erigeron foliosus var. hartwegii A. A. Heller 1917-6-19 12749 Placer Between Lincoln and Newcastle Comment
  UCD18253  Erigeron glacialis E. A. Dean; N. Wymer, T. and M. Starbuck 1998-8-15 465 Placer NW shore of Lake Tahoe, W of Hwy 89, S of Donner Lake, upper slopes and meadows of Squaw Valley Ski Resort. 2499 Comment
  CAS-BOT-BC300814  Erigeron glacialis var. glacialis A. A. Heller 1917-8-13 12916 Placer Ridge northwest of Donner Pass 2377 Comment
  CAS-BOT-BC300823  Erigeron glacialis var. glacialis H. M. Hall 1910-7-11 8754 Placer Sierra Nevada Mountains. Near Cisco 1859 Comment
  UC148936  Erigeron glacialis var. glacialis H. M. Hall 1910-7-11 8754 Placer near Cisco; Sierra Nevada Mountains 1859 Comment
  CAS-BOT-BC300822  Erigeron glacialis var. glacialis C. F. Sonne 1884-8-24 151 Placer Sierra Nevada Mts. Canyon above Coldstream Comment
  CDA12431  Erigeron inornatus G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8503 Placer Lake Tahoe; N side of upper Ward Valley, 4 mi SW of Tahoe City. Comment
  OBI16541  Erigeron inornatus Robert F. Hoover 1967-9-5 10831 Placer Carnelian Bay, Lake Tahoe Comment
  UC1118161  Erigeron inornatus var. inornatus H. S. Yates 1936-8-9 5996 Placer near Brockway; Truckee Quadrangle 1950 Comment
  RSA0049720  Erigeron miser Dean Wm. Taylor 2013-8-7 21396 Placer Coldstream Valley, headwaters of Cold Creek, draining the southeast flank of Mt. Judah 1889 Comment
  UCR257631  Erigeron peregrinus subsp. callianthemus George K. Helmkamp, Ann Kerchner, Amy Barnes 2012-7-23 19533 Placer Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary 2136 Comment
  CAS-BOT-BC295969  Erigeron philadelphicus Mrs. H. M. Mitchell 1923-4-26 s.n. Placer Gold Run Comment
  CDA4644  Erigeron philadelphicus Kelly 1928-5-2 Placer Near Auburn, along road. 0 Comment
  UCD21713  Erigeron philadelphicus var. philadelphicus Beth Lowe Corbin 1982-8-13 344 Placer 3/4 mile west of The Cedars. In dryish meadow. Annual. Rays purple, disc yellow. Mostly sun. South facing slope, 15% incline. Frequent. 1676 Comment
  UC148994 Image available Erigeron reductus var. reductus H. M. Hall 1910-7-3 8741 NUL Placer near Cisco; Sierra Nevada Mountains, Yuba River; Yuba River near Cisco, Sierra Nevada Mts. 1706 Comment
  JEPS14  Eriodictyon californicum W. H. Shockley June 1886 Placer Auburn Comment
  UC1124281  Eriodictyon californicum N. French 1934-5-29 375 Placer 1 mi w Lake Spaulding; Tahoe National Forest, Colfax Quadrangle 1463 Comment
  UCD119286  Eriodictyon californicum M. H. Mills 1996-4-12 141 Placer roadsides at 5830 Walden Lane, Loomis. 180 Comment
  UCR190659  Eriodictyon californicum George K. Helmkamp, E. A. Helmkamp 2007-5-23 12081 Placer Northern Sierra Nevada Mountains Foothills, junction of Iowa Hill Road and Finning Mill Road (U. S. F. S. Rd #10) in the Sugar Pine Recreation area 1137 Comment
  CAS-BOT-BC255403  Eriogonum Saichi Kawahara 1969-7-6 833 Placer Slope over looking north fork of the American River, Colfax-Iowa Hill Road between Dinner Tree and Windy Point 585 Comment
  CAS-BOT-BC259350  Eriogonum lobbii John Thomas Howell 1943-7-26 18844 Placer Mt. Lincoln Comment
  CAS-BOT-BC249061  Eriogonum marifolium George K. Helmkamp; E. A. Helmkamp 2011-8-26 18189 Placer Northern Sierra Nevada Mountains: along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat 2050 Comment
  UCD75941  Eriogonum marifolium Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5180 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek. South side of trail by creek. 2145 Comment
  CHSC67680  Eriogonum marifolium var. marifolium James D. Jokerst 1986-7-13 2717 A Placer Trail from The Cedars, SW of Donner Lake, stop along trail S of Middle Fork American River. 1859 Comment
  CDA24997  Eriogonum nudum J. Glazner 2000-9-2 s.n. Placer Lake Tahoe; Wooded slope betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. Perennial. 1889 Comment
  UCD21613  Eriogonum nudum E. Dean; M. Starbuck, C. Tresan, S. Tresan 2001-6-30 1281 Placer Vicinity of the town of Soda Springs. Along trail that starts at Soda Springs Rd. and travels E from the Serene Lakes region up ca. 100 m to a ridge that looks down on Lake Van Norden and railroad tracks. Open W-facing granite slope at tree-line, ascending ridge. 2300 Comment
  UCD22130  Eriogonum nudum var. deductum Rex Palmer 1979-7-25 N 689 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR231841  Eriogonum nudum var. deductum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16788 Placer Northern Sierra Nevada Mountains, American Hill Road (Forest Route 13), 4.7 miles south of its junction with Foresthill Road and just south of a creek crossing 1552 Comment
  UCR201517  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2008-8-20 14019 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  CAS-BOT-BC261705  Eriogonum nudum var. oblongifolium John Thomas Howell; Gordon H. True 1968-6-9 44507 Placer Alta 1066 Comment
  UCD100548  Eriogonum nudum var. oblongifolium G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12960 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road 6 miles east of Foresthill. 610 Comment
  UCR207114  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2009-7-16 15218 Placer Sierra Nevada Mountains, Forest Hill Road, 26.1 miles northeast of the city of Foresthill, c. 3/4 mi. NW of Sailor Flat 2020 Comment
  UCR215982  Eriogonum nudum var. oblongifolium George K. Helmkamp, Amy Barnes 2009-7-12 15182 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  CAS-BOT-BC271968  Eriogonum nudum var. pubiflorum John Thomas Howell 1929-10-4 4431 Placer 2.4 miles below Weimer on road to Colfax Comment
  SD22519  Eriogonum nudum var. pubiflorum Susan G. Stokes 1932-7-30 Placer Sacramento to Grass Valley Comment
  UC635007  Eriogonum nudum var. pubiflorum H. L. Mason 1929-10-4 5450 Placer 3 mi s on Folsom Road Roseville Comment
  UCD22138  Eriogonum spergulinum Rex Palmer 1979-7-26 N 834 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC269934  Eriogonum spergulinum var. reddingianum A. A. Heller No date on label 12894 Placer Summit Station 2121 Comment
  CHSC73062  Eriogonum spergulinum var. reddingianum L. P. Janeway 1998-8-6 5985 Placer North side of Blackwood Creek, 1.7 mi west of Lake Tahoe. Lake Tahoe Basin Management Unit - National Forest meadow 216,218,219,222. Large, dry, open, gravelly area on the upslope side of the meadow. 1938 Comment
  JEPS111222  Eriogonum spergulinum var. reddingianum Steve Matson 2005-6-19 1307 Placer Martis Valley, southeast of Truckee, National Recreation Area, SW of Highway 267 and north of Martis Creek. 39.3011 N, 120.1330 W; Elevation 5835 ft. 1778 Comment
  UC849786  Eriogonum spergulinum var. reddingianum none 12894 Placer Summit Station 2121 Comment
  UCR136715  Eriogonum spergulinum var. reddingianum L. S. Rose 1941-7-8 41290 Placer Sierra Nevada Mtns., Chambers Lodge (McKinney), Lake Tahoe 1921 Comment
  SD86301  Eriogonum spergulinum var. reddingianum James L. Reveal 1971-6-23 2478 Placer Along California Highway 89, about 2 miles south of Truckee at Granite Flat Camp Ground Comment
  JEPS111184  Eriogonum strictum var. proliferum Steve Matson 2005-7-10 1390 Placer Martis Valley, southeast of Truckee, National Recreation Area, south of Highway 267 and north of Martis Creek, 500 meters W of parking area 1783 Comment
  CAS-BOT-BC268014  Eriogonum umbellatum var. furcosum J. C. Hawver 1912-9-7 s.n. Placer Cisco Comment
  UC615502  Eriogonum umbellatum var. nevadense Beryl O. Schreiber 1932-9-11 770 Placer Summit Comment
  UCD22121  Eriogonum umbellatum var. nevadense Rex Palmer 1979-7-10 N 525 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22122  Eriogonum umbellatum var. nevadense Rex Palmer 1979-7-11 N 589 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD75742  Eriogonum umbellatum var. nevadense Ellen Dean, M. Starbuck,; K. Mawdsley, G. Harrington, M. Bibbo, J. Poloske 2008-7-20 5206 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, ridge between Southern Pacific RR tracks and railroad tunnel to the west of Lakeview Canyon, large turnabout/parking area with off-road vehicle use. 2207 Comment
  UC6478  Eriogonum umbellatum var. torreyanum C. F. Sonne Sept. 1885 Placer bank of Squaw Creek on Rd to Tahoe; Squaw Creek Comment
  CAS-BOT-BC262227  Eriogonum ursinum David D. Keck 1932-6-30 1576 Placer 1 mile E. of Cisco 1800 Comment
  JEPS56203  Eriogonum ursinum Leland S. Smith 1914-8-11 Placer near Loch Leven (5 mi n of Cisco) 2133 Comment
  JEPS56206  Eriogonum ursinum C. F. Sonne 1888-7-29 404 Placer Bear Creek Sierra Nevada, Bear Creek Comment
  UCD101538  Eriogonum wrightii Beecher Crampton 1975-10-14 9329 Placer Emigrant Gap area on Hwy. 80 just east of Vista Point. 1524 Comment
  SEINET3814379 Image available Eriogonum wrightii subsp. trachygonum Lewis S. Rose 1938-9-14 38260 Placer South Fork of Yuba River. 1615 Comment
  SEINET5332157  Eriogonum wrightii var. subscaposum P. B. Kennedy, Samuel Bradford Doten 1901-8-18 421 Placer French Meadows. Comment
  SD237318  Eriophyllum lanatum var. croceum G. K. Helmkamp, Amy Barnes 2009-7-12 15185 Placer Sierra Nevada Mountains Foothills: along Foresthill Road 10.3 miles northeast of the town of Foresthill. 1370 Comment
  SD212485  Eriophyllum lanatum var. grandiflorum G. K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10441 Placer Northern Sierra Nevada Foothills, ca. 4.0 miles northeast of Auburn, along Forest Hill Road, 1.8 miles northeast of its junction with CA Highway 49 at the middle fork of the American River. 370 Comment
  UC147601  Eriophyllum lanatum var. grandiflorum Harriet A. Walker 1908-6-24 1279 Placer Blue Canyon 1432 Comment
  UC194928  Eriophyllum lanatum var. grandiflorum H. M. Hall 1916-6-3 10147 Placer near Rocklin; east side Sacramento Valley 121 Comment
  UC566755  Eriophyllum lanatum var. grandiflorum H. L. Mason 1926-5-28 3275 Placer 5 mi above Auburn Comment
  JEPS111297  Eriophyllum lanatum var. integrifolium Steve Matson 2005-7-30 1423 Placer Squaw Valley ski area, about 1 km west of High Camp (top of tramway), under Shirley Canyon chairlift upper terminal: 39.1942 N, 120.2721 W ; elevation 8,100 ft. 2468 Comment
  JEPS34497  Eriophyllum lanatum var. integrifolium L. S. Smith 1928-7-7 2470 Placer road to Robertson Flat above Forest H; Tahoe National Forest 1219 Comment
  UC148991  Eriophyllum lanatum var. integrifolium H. M. Hall 1910-7-10 8753 Placer Cisco Butte Sierra Nevada Mountains (near type-locality of Bahia cuneata) 1950 Comment
  JEPS113114  Erodium brachycarpum Lowell Ahart, Brian Williams 2007-4-13 13649 Placer On damp granite soil, open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln 43 Comment
  UCR238599  Erodium brachycarpum George K. Helmkamp, E. A. Helmkamp 2012-3-31 18649 A Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCD127484  Eryngium castrense R. A. Blanchard 1931-5-9 2191 Placer Roseville. Comment
  UCD21176  Eryngium castrense Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-6-5 351 Placer Orchard Creek Mitigation Bank. UTMs 10S0646175; 4300069. Comment
  SCFS1213  Erysimum E. Krimmel 2013-6-29 Placer NFAm. Painted Rock Trail. Comment
  CAS-BOT-BC54317  Erysimum capitatum Mary E. Jump 1939-5-29 s.n. Placer Bear Valley. Comment
  SD102837  Erysimum capitatum Darley Howe 1978-7-14 Placer Along state highway 20, ca. 29 miles west of Truckee 1645 Comment
  UCD22373  Erysimum capitatum Rex Palmer 1979-6-20 N 277 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD114989  Erysimum capitatum var. capitatum A. S. Crafts 1926-5-1 800 Placer American River Canyon. Comment
  UCR120248  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5034 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR208278  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2009-5-7 14640 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR246830  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16653 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  UC188620  Erysimum cheiranthoides C. F. Sonne 1897-6-1 Placer w slope of mts. Washoe Mts. (along r.r.); Date as June 1897 Comment
  CAS-BOT-BC55091  Erysimum perenne G. B. Rossbach 1940-6-2 933 Placer Near northwest shore Lake Tahoe. 1981 Comment
  CAS-BOT-BC55093  Erysimum perenne Marcus E. Jones 1882-6-28 2620 Placer Emigrant Gap. Comment
  UC1126628  Erysimum perenne N. French 1934-6-22 445 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle Comment
  UC128132  Erysimum perenne Miss Harriet A. Walker 1908-7-25 1421 Placer Cisco 1810 Comment
  OBI53986  Erythranthe arvensis Barbara Ertter, David Thompson 1989-4-8 8173 Placer Iowa Creek Rd ca 2 mi from I-80 near entrance to Auburn State Recreaton Area, at crk crossing 518 Comment
  CHSC74129  Erythranthe primuloides Susi Urie 1998-8-17 98 -045 Placer About 0.5 mi north of Ward Creek, along a small tributary; about 2 mi west of Lake Tahoe and Sunnyside. 2097 Comment
  CHSC82570  Erythranthe primuloides Lowell Ahart 2002-7-22 9902 Placer 50 yards northeast of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1780 Comment
  CHSC85680  Erythranthe tilingii G. F. Hrusa; J. Glazner 2001-7-15 15935 Placer Northern Sierra Nevada. On N face of Crows Nest Pk. immed. W of Sugarbowl. 2286 Comment
  UC1585966  Erythronium multiscapideum Barbara Ertter with David Thompson 1989-4-8 8170 Placer Iowa Creek Road ca 2 mi from I-80 (near entrance to Auburn State Recreation Area, at creek crossing, near rivulet at base of n-facing slope at edge of forest) 518 Comment
  UCR257566  Eschscholzia caespitosa George K. Helmkamp, Amy Barnes 2014-4-23 22773 Placer Sierra Nevada Mountains Foothills, Old Forest Hill Road, 0.4 mile northeast of its junction with CA-49 at North Fork American River 290 Comment
  SEINET3411987 Image available Eschscholzia californica George K. Helmkamp, E. A. Helmkamp 2012-3-31 18645 Placer Sacramento Valley: along CA-193, 0.1 mile W of its junction with Sierra College Blvd. 88 Comment
  CAS-BOT-BC403344  Eschscholzia californica H. M. Hall 1917-3-9 10290 Placer Lincoln, Sacramento Valley Comment
  SD113755  Eschscholzia californica Darley F. Howe 1948-5-22 1818 Placer 671 Comment
  CAS-BOT-BC419541  Eschscholzia lobbii Peter H. Raven; G. L. Stebbins, Jr. 1952-4-20 3988 Placer Grass Valley Road 1.4 miles from Auburn 365 Comment
  CAS-BOT-BC310366  Eucephalus breweri L. S. Smith 1927-8-5 2155 Placer Tahoe National Forest. Robertson Flat, Forest Hill Dist. Comment
  CAS-BOT-BC310368  Eucephalus breweri Alice Eastwood 1909-1-1 313 Placer Lake Tahoe Region, Deer Park Comment
  UCD21706  Eucephalus breweri Rex Palmer Date Unknown N 891 Placer Placer County Comment
  POM260049  Euphorbia crenulata C. L. Hitchcock 1940-5-7 6307 Placer 1 mile west of Baxter. Comment
  SD81227  Euphorbia crenulata Darley F. Howe 1971-6-29 Placer 1.4 miles east of Forest Hill. 1399 Comment
  CDA33332  Euphorbia epithymoides J. Honeycutt 2010-6-25 PDR# 1332623 Placer Tahoma; Hwy 89 right-of-way 0 Comment
  SD255715  Euphorbia nutans George K. Helmkamp, Elizabeth Helmkamp 2012-10-16 20036 Placer Sierra Nevada Mountains Foothills: city ofNorth Auburn, corner of Locksley Lane and CA-49 (Auburn 7.5'Q) 384 Comment
  UCR257773  Euphorbia nutans George K. Helmkamp, Elizabeth Helmkamp 2012-10-16 20036 Placer Sierra Nevada Mountains Foothills, city of North Auburn, corner of Locksley Lane and CA-49 384 Comment
  CAS-BOT-BC202404  Euphorbia ocellata Gordon H. True 1972-8-23 7409 Placer Northern outskirts of Lincoln Comment
  CAS-BOT-BC312159  Eurybia integrifolia R. F. Hoover 1967-9-5 10827 Placer Carnelian Bay, Lake Tahoe Comment
  CAS-BOT-BC312160  Eurybia integrifolia Lewis S. Rose 1938-9-14 38264 Placer South Fork of Yuba River, 3 mi. e. of Cisco 1737 Comment
  CHSC73007  Eurybia integrifolia L. P. Janeway 1998-8-6 5978 Placer Lake Tahoe Basin Management Unit - National Forest. North side of Blackwood Creek, 1.7 mi west of Lake Tahoe. 1938 Comment
  OBI16995  Eurybia integrifolia Robert F. Hoover 1967-9-5 10827 Placer Carnelian Bay, Lake Tahoe Comment
  CAS-BOT-BC312166  Eurybia radulina Leland S. Smith 1926-5-25 s.n. Placer Mosquito Ridge burnt area, Tahoe National Forest Comment
  UC896646  Euthamia occidentalis G. P. Rixford 1913-9-2 Placer Loomis Comment
  SEINET3828364  Fabaceae G. K. Helmkamp, E. A. Helmkamp 2011-1 17854 Placer Northern Sierra Nevada Mountains: Emigrant Gap Road, 0.1 miles west of its junction with US-80 0.65 mi NE (65 degrees) of Emigrant Gap. (Blue Canyon 7.5') 1590 Comment
  CAS-BOT-BC30021  Fagaceae Saichi Kawahara 1969-7-6 897 Placer Ditch line north of old cabin, Mel Henderson Ranch, east bank of Indian Creek 999 Comment
  CAS-BOT-BC278792  Festuca occidentalis Saichi Kawahara 1969-5-25 889 Placer North of old cabin, Mel Anderson Ranch, Indian Creek 999 Comment
  CHSC112167  Festuca occidentalis Dean Wm. Taylor 2013-6-19 21371 Placer Ralston Ridge (ca 15 air miles E of Foresthill), along Forest Road 14N22C about 1.1 mile down from (North of) Forest Road 25 along the ridgecrest. 1482 Comment
  UCD37227  Festuca occidentalis Beecher Crampton 1958-6-24 4971 Placer 3 miles west of Baxter, Earl Morton Ranch. 1066 Comment
  UCR258231  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20235 Placer Eastern Sacramento Valley, NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65 43 Comment
  CHSC74044  Festuca rubra Susi Urie 1998-8-18 98 -074 Placer Lake Tahoe Basin-National Forest. About 0.2 mi north of Lake Tahoe; meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  SACT001196  Festuca rubra D. Meyer 1983-7-3 Placer 1227.3 Comment
  SACT001219  Festuca rubra D. Meyer 1984-6-23 Placer Hillside northwest of dam. 1212.0 Comment
  SACT001199  Festuca subulata D. Meyer 1984-6-17 Placer Just south of bridge over American River 545.0 Comment
  CAS-BOT-BC282565  Festuca viridula A. A. Heller 1917-8-14 12926 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  SACT001204  Festuca viridula Michael Baad 1983-8-11 Placer Trail to Whiskey Camp. 3 miles west of Alpine Meadows. 2133.0 Comment
  SACT001208  Festuca viridula Michael Baad 1983-8-27 Placer 2072.64 Comment
  CDA19486  Filago gallica M. I. Wibawa 2002-5-27 260 Placer Sacramento Valley; Folsom Lake State Recreation Area. 121 Comment
  UC147587  Floerkea proserpinacoides Miss Harriet A. Walker 1908-6-26 1314 Placer Cisco 1810 Comment
  CAS-BOT-BC447510  Fragaria virginiana var. platypetala Lewis S. Rose 1944-7-12 44098 Placer Chambers Lodge, Lake Tahoe 1920 Comment
  SEINET11280266  Frangula L. R. Miller s.n. Placer Above Colfax 914 Comment
  CAS-BOT-BC53551  Frangula californica subsp. tomentella A. A. Heller 1917-6-16 12680 Placer near Dutch Flat 914 Comment
  SD10091  Frangula rubra Brandegee Sept 1888 Placer Alta Comment
  UCD113124  Frangula rubra Beecher Crampton 1975-10-14 9323 Placer Blue Canyon airport area. 1524 Comment
  SCFS5089  Fritillaria recurva F. Felix, Erica Krimmel 2013-5-19 29 Placer North Fork American River, near Cedars Meadow Comment
  UCR250272  Galium aparine George K. Helmkamp, Elizabeth Helmkamp 2013-4-13 20335 Placer Northern Sierra Nevada Mountains Foothills, Cramer Road at the junction with CA-49, north of Auburn 412 Comment
  RSA757078  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2009-7-16 15200 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 Comment
  JEPS72404  Galium grayanum Gladys L. Smith, Betsy and Norman Wilson 1972-7-7 3600 Placer summit Ward Peak 2621 Comment
  UC102505  Galium grayanum C. F. Sonne 1893-8-27 Placer Tinker's Knob Comment
  SEINET11616247  Galium grayanum var. grayanum W. D. Billings 1950-7-30 1920 Placer NE side of Squaw Peak, Sierra Nevada 2560 Comment
  RSA785623  Galium parisiense George K. Helmkamp, E. A. Helmkamp 2010-6-26 16375 Placer junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR231830  Galium sparsiflorum subsp. sparsiflorum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16781 Placer Northern Sierra Nevada Mountains, American Hill Road (Forest Route 13), 4.7 miles south of its junction with Foresthill Road and just south of a creek crossing 1552 Comment
  JEPS127518  Galium trifidum subsp. columbianum Steve Matson 1997-7-5 42 Placer nSNH: jMartis Valley, about 4 miles SE of Truckee. Martis Creek Wildlife Area, north side of Hwy 267, west of Martis Creek. Comment
  CHSC74121  Galium triflorum Susi Urie 1998-8-13 98 -032 Placer Meadow along the south side of Ward Creek about 1.5 mi west of Lake Tahoe and Sunnyside. 2097 Comment
  OBI58654  Gamochaeta coarctata David J. Keil, with Kathleen A. Keil 1999-7-17 28376 Placer Along N Fork of Cosumnes River at Little Canyon Road ford. 457 Comment
  UC876016  Garrya fremontii Marcus E. Jones, A. M. 1882-6-28 3301 Placer Emigrant Gap Comment
  SACT001232  Gastridium ventricosum D. Meyer 1983-7-24 Placer Moist shady roadside. 1036.32 Comment
  UCD117439  Gaultheria ovatifolia P. W. Rundel 1967-9-6 2652 Placer American River Grove of Sierra redwoods; Tahoe National Forest, ca. 20 miles NE of Foresthill; Greek Store. 7 1/2 min. Comment
  UCD21989  Gayophytum Beth Lowe Corbin 1982-8-2 158 Placer Onion Creek campground. In fine, sandy, granitic soil. Annual herb; Flowers whitish to pink. Open spot between trees. Partial shade. South facing slope. Locally abundant. 1841 Comment
  RSA122209  Gayophytum diffusum subsp. parviflorum B. Bolt 1934-7-17 129 Placer 1/2 mile south of Lost Emigrant Mine. 2073 Comment
  UCD103632  Gayophytum diffusum subsp. parviflorum D. Sanchez-Mata 1997-8-9 s.n. Placer Blue Canyon Road near Blue Canyon. Tahoe National Forest. 1500 Comment
  UCD42939  Gayophytum diffusum subsp. parviflorum C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 308 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  UCR189299  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2007-7-27 12626 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  RSA462366  Gayophytum diffusum subsp. parviflorum Wm. Vortriede 1928-1 s.n. Placer Lake Tahoe. Comment
  POM145987  Gayophytum heterozygum J. B. Feudge 1927-7-18 1717 Placer Emigrant Gap Comment
  UCD44024  Gentianopsis simplex C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-8-1 1390 Placer Lake Tahoe Basin. Comment
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Nov 8 2013
  UC35441  Gentianopsis simplex C. F. Sonne 1885-8-9 Placer meadows along Truckee R. Truckee R. Comment
  CDA37233  Geranium dissectum CDFA Staff s.n. Placer Nute Ranch, near Nute Road. 0 Comment
  RSA0028446  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2010-4-23 15904 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill. 287 Comment
  SEINET3245948  Geranium dissectum G. K. Helmkamp, E. A. Helmkamp 2010-1 15904 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-40 at Pilot Hill (Pilot Hill 7.5') 287 Comment
  SEINET4560742  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-1 17258 Placer Southern Sacramento Valley: south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave. 41 Comment
  UCD103364  Geranium dissectum M. H. Mills 1996-4-12 133 Placer Along Walden Lane, Loomis. 180 Comment
  SD43657  Geranium dissectum Darley F. Howe 1948-5-21 1912 Placer 456 Comment
  RSA531311  Geum canescens Walter Wisura, T. Hayduk, Q. Junzhuan 1991-8-22 4544 Placer Squaw Valley beyond upper cable car station. on SW slope below a rocky summit. Comment
  UCD43183  Geum macrophyllum C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-20 552 Placer Lake Tahoe Basin; Blackwood Canyon. UTM's 10 743067E, 4332664N. 1938 Comment
  UCD44475  Geum macrophyllum C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1841 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
  JEPS71885  Geum triflorum Gladys L. Smith 1972-6-20 3220 Placer Ward Peak, from chairlift terminus to ultimate summit peak Ward Peak 2632 Comment
  SEINET3363420 Image available Gilia Marcus E. Jones 1882-6-1 Placer Emigrant Gap Comment
  SEINET11261544  Gilia capitata subsp. mediomontana George Helmkamp, Elizabeth Helmkamp 2013-6-11 20828 Placer Northern Sierra Nevada Mountains Foothills at the junction of Yankee Jim's Road and Shirttail Canyon Road, NW of Foresthill.; 0 463 Comment
  UCR194932  Gilia capitata subsp. mediomontana George K. Helmkamp, E. A. Helmkamp 2007-5-18 12015 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR249601  Gilia capitata subsp. mediomontana George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20828 Placer Northern Sierra Nevada Mountains Foothills, junction of Yankee Jim's Road and Shirttail Canyon Road, NW of Foresthill 463 Comment
  UC932063  Gilia capitata subsp. pedemontana Verne Grant, Alva Grant 1947-5-5 7970 Placer roadbank near Weimar; near Weimar 670 Comment
  SEINET7963111 Image available Gilia leptalea Lewis S. Rose 1941-1 41319 Placer Chambers Lodge (McKinney), Lake Tahoe 1920 Comment
  SEINET7719995  Gilia tenella Unknown Placer Summit Comment
  UCD18247  Githopsis specularioides E. A. Dean 1998-5-30 457 Placer NE of town of Auburn, along SE side of Foresthill Rd. 500 Comment
  UCD66746  Glyceria borealis August L. Hormay 1932-7-8 Placer W side of Lake Tahoe, 6 miles S of Tahoe Tavern. Comment
  CHSC96503  Glyceria declinata Lowell Ahart; Brian Williams 2007-4-13 13662 Placer On damp granite soil, on the bottom of vernal pools, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln. 43 Comment
  CHSC74166  Glyceria elata Susi Urie 1998-8-13 98 -034 Placer Lake Tahoe Basin-National Forest. Meadow along the south side of Ward Creek, about 1.5 mi west of Lake Tahoe and Sunnyside. 2097 Comment
  SACT001252  Glyceria elata Michael Baad 1976-7-21 Placer Lower south west-facing slopes of Lyon Peak, southeast of Soda Springs. 2377.0 Comment
  SACT001262  Glyceria elata Michael Baad 1983-6-26 Placer On road to Michigan Bluff. Roadwaters of Volcano Creek. 1005.0 Comment
  JEPS75581  Glyceria grandis W. L. Jepson 1934-8-7 16882 Placer near Squaw Creek; Truckee River Comment
  JEPS75680  Glyceria grandis W. L. Jepson 1934-8-7 16882 Placer near Squaw Creek Truckee R. Comment
  UC53407  Glyceria striata J. Burtt Davy Jun 25 1897-Jun 30 1897 3268 Placer near Truckee River; Truckee River Basin Comment
  RSA757090  Gnaphalium canescens subsp. thermale George K. Helmkamp, E. A. Helmkamp 2009-7-16 15199 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 Comment
  UCR259869  Gnaphalium luteoalbum George K. Helmkamp, Elizabeth Helmkamp 2013-11-2 22467 Placer Sacramento Valley, West Wise Road just east of the junction with California Lane, north of Lincoln 56 Comment
  UCD42866  Gnaphalium palustre C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-23 233 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  UC614816  Gnaphalium palustre Beryl O. Schreiber 1932-9-11 765 Placer road to Summit Comment
  SD43653  Gnaphalium purpureum Darley F. Howe 1948-5-21 1908 Placer 455 Comment
  SCFS11529147  Goodyera oblongifolia F. Felix 2014-5-10 Placer Along NF trail between Cedars and Onion Creek crossing Comment
  CHSC68032  Gratiola heterosepala James D. Jokerst 1986-4-14 2619 Placer Johnson Ranch, N of Douglas Rd. and E of Hwy. 80. Comment
  UCD159475  Grindelia squarrosa var. serrulata D. S. Park 2010-8-21 229 -1 Placer Corner of Donner Pass Rd. and Hampshire Rocks Rd. All around ramp into highway I-80. Disturbed. Near roadsigns. Abundant. 1788 Comment
  UCD159476  Grindelia squarrosa var. serrulata D. S. Park 2010-8-21 229 -2 Placer Corner of Donner Pass Rd. and Hampshire Rocks Rd. All around ramp into highway I-80. Disturbed. Near roadsigns. Abundant. 1788 Comment
  UCR111004  Hackelia George K. Helmkamp, E. A. Helmkamp 1999-6-30 5109 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR198122  Hackelia Rex Palmer 1979-6-21 N 366 Placer Sierra Nevada Mtns., Headwaters Basin Area of the North Fork of the American River, Tinker Knob west ridge Comment
  UCR246829  Hackelia micrantha George K. Helmkamp, E. A. Helmkamp 2010-7-28 16654 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  UC174287  Hackelia nervosa A. A. Heller 1912-7-20 10591 Placer Summit 2072 Comment
  UCD22142  Hackelia velutina Beth Lowe Corbin 1982-8-4 226 Placer 1/4 mile NW of Onion Creek Campground. 1950 Comment
  UC1069450  Helianthella californica subsp. nevadensis B. Bolt 1934-7-11 95 Placer Cascade Lakes Tahoe National Forest, Truckee Quadrangle Comment
  UC311608  Helianthella californica subsp. nevadensis Dr. H. M. Evans 1918-7-1 Placer Donner Tahoe Region 2133 Comment
  UCD132764  Helianthella californica var. nevadensis G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12648 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCR190223  Helianthella californica var. nevadensis George K. Helmkamp, E. A. Helmkamp 2007-8-1 12648 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 Comment
  POM359824  Helianthella californica var. nevadensis F. G. Mart 1934-7-26 12906 Placer Foot of Red Mt. Comment
  RSA123089  Helianthella californica var. nevadensis B. Bolt 1934-7-11 95 Placer Cascade Lakes, Truckee 2043 Comment
  SEINET7067119  Hemizonia pallida A. G. Vestal 1947-4-29 s.n. Placer About 3.3 miles north of Auburn on Route 49. Coordinate datum: NAD27. UTM Zone 10, 644870mE, 4312473mN. Comment
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Nov 29 2020
  UCD44454  Heracleum maximum C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1820 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
  CDA19543  Heterocodon rariflorum M. I. Wibawa, G. F. Hrusa , J. Glazner 2002-5-22 223 Placer Forest Hill Divide; Hughes Mill, along Finning Mill Rd, ~ 3 mi N of Forest Hill Rd, ~ 3 mi E of Forest Hill. 1066 Comment
  SFV18651  Heterocodon rariflorum J. D. Dilley 2002-7-3 466 Placer Sierra Nevada Onion Valley south of Emigrant Gap. Mudflat by stream in an area burned one year ago (Gap Fire 2001). Comment
  CHSC107390  Heteromeles arbutifolia Blake McSorley 2010-3-19 Placer Hidden Falls near Auburn. 259 Comment
  HSC26678  Heterotheca grandiflora Thomas W. Nelson 1972-11-25 708 Placer Beside Del Oro Rd., near Roseville, CA Comment
  UCR193334  Heuchera micrantha George K. Helmkamp, E. A. Helmkamp 2007-5-30 12193 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 15 miles east of its junction with Forest Hill Road in Foresthill, south of site of Bake Oven 915 Comment
  SEINET6031227  Heuchera micrantha S. Dean 1979-3-31 s.n. Placer Eldorado Creek near junction with N. fork of Middle Fork of American River on Mosquito Ridge Rd 518 Comment
  CAS-BOT-BC319599  Hieracium albiflorum Geo. B. Grant 1906-7-15 s.n. Placer Tahoe Tavern, Lake TAhoe Comment
  CDA42824  Hieracium albiflorum G. F. Hrusa, M. Pitcairn 2015-7-16 18647 Placer Sierra Nevada; Lake Clementine Rd., E of Auburn. 398 Comment
  POM360441  Hieracium albiflorum Fay A. MacFadden 1934-8-10 12830 Placer Cisco Comment
  SEINET11259328 Image available Hieracium horridum W. D. Billings 1951-8-21 2148 Placer E. side of Granite Chief, Sierra Nevada 2621 Comment
  SEINET9259607  Holcus lanatus George K. Helmkamp, Amy Barnes 2014-1 22817 Placer Sierra Nevada Mountains Foothills: Spring Garden Road, at the north side of its junction with FOresthill Road, 8.4 km west of Foresthill 719 Comment
  UCR253122  Holcus lanatus George K. Helmkamp, Amy Barnes 2014-4-23 22817 Placer Sierra Nevada Mountains Foothills, Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill 720 Comment
  CAS-BOT-BC320307  Holocarpha virgata A. A. Heller 1915-9-12 12276 Placer Near Roseville Comment
  CAS-BOT-BC150011  Holodiscus discolor var. discolor A. A. Heller 1917-8-13 12896 Placer North of Summit hotel 2164 Comment
  UCD22266  Holodiscus discolor var. microphyllus Beth Lowe Corbin 1982-8-10 298 Placer 1 1/4 miles WNW of Onion Creek Campground. SE facing slope, 30% incline. Full sun. Uncommon. In granitic slope of montane chaparral. Shrub 2 ft tall. Old bark greyish, flaking. Flowers creme white. 1981 Comment
  CAS-BOT-BC150147  Holodiscus microphyllus var. microphyllus Charlotte Pyle 1977-8-29 s.n. Placer Diamond Crossing on Powderhorn Creek ca. 4.5 miles southwest of Ward Peak 1828 Comment
  SACT001299  Hordeum brachyantherum D. Meyer 1983-7-30 Placer Both sides of road in moist soil. 2072.64 Comment
  SACT001331  Hordeum depressum Josephine Van Ess 1976-3-31 Placer Collected at top of hill north of Rocklin about 6 miles of Placer. Dried up depression. 83.8 Comment
  SACT001335  Hordeum geniculatum Michael Baad 1977-6-3 Placer Collected in camp, serpentine outcrop at Jeffery Pine. 1219.0 Comment
  SACT001365  Hordeum leporinum Josephine Van Ess 1976-4-14 Placer Collected on railroad embankment neer Clark Tunnel Road. North of Penryn and at roadside. Dry roadside. 152.4 Comment
  SCFS1124  Horkelia fusca E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Chickering Reserve. On trail 0.2-m from Cedars. Comment
  JEPS127551  Horkelia fusca var. parviflora Steve Matson 2000-6-24 452 Placer nSNH: Martis Valley, about 4 miles SE of Truckee. Martis Creek Wildlife Area, 400 m north of Hwy 267, 10 m west of Martis Creek. Comment
  CAS-BOT-BC537864  Horkelia fusca var. parviflora A. A. Heller 1919-7-25 13302 Placer Sandy flat near the Yuba river, below Cisco 1676 Comment
  POM34930  Horkelia tridentata Marcus E. Jones 1882-5-27 3291 Placer Emigrant Gap. Comment
Read comments
Sep 7 2010
  UC860236  Horkelia tridentata subsp. tridentata A. A. Heller 1917-6-17 12705 Placer below Cisco (along the Yuba River) Comment
  UC1283728  Horkelia tridentata subsp. tridentata Beecher Crampton 1964-7-21 7114 Placer below Blue Canyon weather station (along US Hwy 40) 1524 Comment
  SEINET5327381  Hosackia crassifolia var. crassifolia P. B. Kennedy 1901-8-21 428 Placer Talbot's Home Camp, 7 mi from French Meadow Comment
  SEINET4691671  Hosackia oblongifolia G. K. Helmkamp, E. A. Helmkamp 2010-1 16796 Placer Northern Sierra Nevada Mountains: American Hill Road (Forest Route 13), 4.7 miles south of its junction with Foresthill Road and just south of a creek crossing. 1552 Comment
  UCD106157  Hosackia oblongifolia R. Tofsrud 1951-7-1 s.n. Placer ca. 5 mi. below Soda Springs, Hwy. 40. Comment
  UCD38938  Hosackia oblongifolia Beecher Crampton 1961-9-27 6021 Placer 1 mile north of Blue Canyon. 1430 Comment
  SEINET11259361 Image available Hulsea californica Unknown s.n. Placer Near Auburn, American River Comment
  UC24090  Hydrophyllum capitatum var. alpinum C. J. Fox Jr. Jul 1895 Placer Deer Park Inn Comment
  UC880766  Hydrophyllum capitatum var. alpinum Lewis S. Rose 1940-6-2 40457 Placer 10 mi n Tahoe City; Truckee River 1828 Comment
  CDA7483  Hymenothrix loomisii T. C. Fuller 1963-10-21 11407 Placer South side of Highway 40 freeway to Donner Summit, 4.8 miles east of Weimar, 1 mile east of Colfax. 0 Comment
  SJSU8045  Hypericum anagalloides R. L. Fisher 1959-6-26 Placer Yuba Gap, Hwy 40 1676 Comment
  SEINET10816780  Hypericum anagalloides A. Arthur Heller 1917-8-15 Heller 12937 Placer Soda Spring station, lower end of Summit valley. Pinus murrayana the prevalent tree. 2042 Comment
  UC128392  Hypericum anagalloides Miss Harriet A. Walker 1908-7-27 1461 Placer Yuba R. near Cisco; Yuba R. Comment
  SD234895  Hypericum concinnum G. K. Helmkamp, E. A. Helmkamp 2008-8-20 14033 Placer Northern Sierra Nevada Mountains: Soda Springs Road, 1.9 miles south of its junction with Donner Pass Road and beside (completely dry) Serena Creek. 2107 Comment
  UCD40288  Hypericum concinnum Rodney Gale Myatt 1972-6-1 1688 Placer Along Forest Hill and Soda Springs Road. Northeast of Auburn. 914 Comment
  UC34300  Hypericum concinnum Mrs. M. M. Hardy 1893-1 Placer Comment
  UCR170799  Hypericum formosum var. scouleri George K. Helmkamp, E. A. Helmkamp 2005-9-30 9937 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR123379  Hypericum perforatum George K. Helmkamp, E. A. Helmkamp 1999-6-29 5054 Placer Sierra Nevada Foothills, corner of Dry Creek Rd & Bowman Rd, near Nielsburg, 3 mi NE of Auburn beside I-80 & 1.5 NW of North Fork Lake on American River 457 Comment
  RSA0036081  Hypericum scouleri Marcus E. Jones 1930-7-11 s.n. Placer Auburn Comment
  CDA37226  Hypochaeris glabra CDFA Staff s.n. Placer Nute Ranch, near Nute Road. 0 Comment
  RSA129914  Ipomoea purpurea P. H. Raven 1954-8-27 7963 Placer Penryn. Comment
  JEPS26024  Ipomopsis aggregata G. Thomas Robbins 1951-6-17 3388 Placer 1.5 mi s Homewood (along state hwy 89) 1889 Comment
  SJSU8431  Ipomopsis aggregata N. D. Addy 1962-7-7 166 Placer by Hwy 50, 3 mi NE of Echo Summit 1981 Comment
  UC1249640  Ipomopsis aggregata G. Thomas Robbins 1951-6-17 3388 Placer ca 1.5 mi s Homewood (along state hwy 89) Comment
  POM147882  Ipomopsis aggregata subsp. formosissima J. B. Feudge 1927-7-19 1746 Placer Donner Lake 2134 Comment
  SD3940  Ipomopsis congesta unknown 1915-5 Placer Donner Comment
  UC879923  Ipomopsis congesta Alice Eastwood Jun 15 1912-Jun 19 1912 369 Placer Deer Park Lake Tahoe region Comment
  UC124884  Ipomopsis congesta C. F. Sonne 1886-7-18 Placer Comment
  SBBG58776  Iris hartwegii M. N. Ackley -Jun-1925 416 Placer Dutch Flat 1005 Comment
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Feb 9 2017
  UC186610  Iris hartwegii C. F. Sonne 1891-4-5 Placer Auburn Comment
  HSC83397  Iris hartwegii G. M. Riegel 1975-5-16 16 Placer 3.6 mi. W of Foresthill off Foresthill Auburn Rd. on Red Rock Rd. 915 Comment
  SCFS5108  Iris hartwegii subsp. hartwegii F. Felix, Erica Krimmel 2013-5-19 1 Placer North Fork American River, west end of Cedars Meadow Comment
  UCD80365  Iris macrosiphon CNPS SN Foothill Team 2005-4-26 SNFN 0182 a Placer CDPR Auburn State Recreation Area, about a half kilometer north of Robie Point. 272 Comment
  UCD43816  Ivesia C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-7 1182 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  SEINET11911561  Ivesia shockleyi var. shockleyi C. F. Sonne 1885-1 s.n. Placer Tinker Knob, near Truckee 2896 Comment
  SEINET11911564  Ivesia shockleyi var. shockleyi C. F. Sonne 1885-1 84 Placer Tinker Knob 2896 Comment
  SACT002749  Juglans hindsii Josephine Van Ess 1977-4-29 Placer Collected north of PFE Road. Old tree on which root stock has taken over. 27.4 Comment
  UCD42973  Juncus acuminatus C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 342 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  OBI21159  Juncus amuricus R. F. Hoover 1967-9-5 10843 Placer Carnelian Bay, Lake Tahoe Comment
  UC1101067  Juncus articulatus Malcolm A. Nobs and S. Galen Smith 1949-8-22 1537 Placer marshy pool on Dunn's Dam Rd 6 mi nw Auburn Comment
  UCD33744  Juncus articulatus subsp. articulatus Beecher Crampton 1972-7-26 8856 Placer ca. 1 mile west of Cisco Grove on Interstate 80. 1676 Comment
  UCD141311  Juncus articulatus subsp. articulatus Malcolm A. Nobs; S. Galen Smith 1949-8-22 1537 Placer 6 miles northwest of Auburn on Dunn's Dam Road. Comment
  CHSC74728  Juncus balticus Susi Urie; Eric Schroder 1998-9-11 98 -350 Placer Lake Tahoe Basin Management Unit - National Forest. Antone Meadows; along Burton Creek, about 2.1 mi northwest of Lake Tahoe. 2072 Comment
  UCD43976  Juncus balticus C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-11 1342 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  UCD162584  Juncus bufonius var. occidentalis Steve Matson 2003-7-29 861 Placer nSNH; Tahoe west shore; Timberland subdivision; next to Rideout School/Community Center. 1920 Comment
  UCD43302  Juncus bufonius var. occidentalis C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-12 670 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  UCD141444  Juncus chlorocephalus L. S. Smith 1915-1 s.n. Placer Squaw Valley. Comment
  UCR209722  Juncus chlorocephalus George K. Helmkamp, E. A. Helmkamp 2009-8-12 15448 Placer Sierra Nevada Mountains, Forest Hill Road at Robinson Flat, 27 miles northeast of the city of Foresthill 2061 Comment
  CHSC74141  Juncus confusus Susi Urie 1998-8-11 98 -014 Placer Lake Tahoe Basin Management Unit -- National Forest. About 0.5 mi north of Ward Creek, along a small tributary; about 2 mi west of Lake Tahoe and Sunnyside. 2097 Comment
  UCD124128  Juncus ensifolius Ellen Dean; Marcel Rejmanek 2012-10-9 7502 Placer Along Mosquito Ridge Road, ca. six road miles E of junction with Foresthill Road, north side of Mosquito Ridge Road, opposite very large turnout and next to dirt road that heads upslope. 617 Comment
  UCD162590  Juncus ensifolius Steve Matson 2002-8-17 701 Placer nSNH; Tahoe north shore; Burton Creek watershed, near Tahoe City and North Tahoe High School. 2011 Comment
  UCD33724  Juncus ensifolius Beecher Crampton 1972-7-26 8829 Placer Placer County, ca. 3 miles east of Baxter on Hwy. 80. 1524 Comment
  UCR209750  Juncus exiguus George K. Helmkamp, E. A. Helmkamp 2009-8-12 15431 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
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Mar 31 2011
  UCD42990  Juncus mertensianus C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 359 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  CHSC74024  Juncus nevadensis Susi Urie 1998-8-17 98 -057 Placer Lake Tahoe Basin--National Forest. About 0.5 mi north of Ward Creek, along a small tributary; about 2 mi west of Lake Tahoe and Sunnyside. Narrow meadow stringer. 2097 Comment
  SEINET9318019  Juncus nevadensis Unknown 1999-7-17 15179 Placer Martis Valley, CA (Lat. 39deg18'39") Comment
  RSA133970  Juniperus occidentalis var. australis John H. Thomas, Hazelle A. Thomas 6149 Placer Sierra Nevada. Vicinity of Donner Pass, about 80 miles northeast of Sacramento 2134 Comment
  CAS-BOT-BC58895  Kalmia microphylla subsp. microphylla L. S. Smith 1925-5-21 49453 Placer Tahoe Forest - Squaw Valley 1889 Comment
  UC480736  Kalmia polifolia subsp. microphylla W. C. Blasdale 1923-7-15 Placer Ellis Peak; Lake Tahoe Region, Ellis Peak Comment
  CAS-BOT-BC235566  Keckiella breviflora Margaret J. Williams 1984-6-24 84- 65 -1 Placer 0.3 mi in from Hwy 20, on Bowman Lake Rd. 1524 Comment
  UCD123691  Keckiella breviflora Beecher Crampton 1955-6-15 2882 Placer Dry canyon slopes, Bunch Canyon. Comment
  SEINET12330172  Keckiella breviflora M. J. Williams 1984-1 84- 65 -1 Placer 0.3 mi from Hwy 20, on Bowman Lake Rd 1524 Comment
  UC886836  Keckiella breviflora var. glabrisepala C. L. Hitchcock 1940-5-14 6413 Placer ca 6 mi n Colfax (Meier Ranch) 762 Comment
  POM263779  Kelloggia galioides L. S. Rose 1941-7-21 41338 Placer Chambers Lodge (McKinney), Lake Tahoe. 1900 Comment
  SEINET4560813  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2011-1 18177 Placer Northern Sierra Nevada Mountains: Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2060 Comment
  UCR215979  Kelloggia galioides George K. Helmkamp, Amy Barnes 2009-7-12 15173 Placer Sierra Nevada Mountains Foothills, along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 Comment
  SEINET12328850  Kelloggia galioides J. H. Nishida 1985-1 784 Placer Homewood 1829 Comment
  CHSC3141  Kolkwitzia amabilis Gary Dutton 1966-4-29 165 Placer Found at 228 Donner Ave in backyard. Roseville. Comment
  SEINET5338187  Kumlienia hystricula K. Brandegee 1909-4-28 92 Placer Near Auburn, in the Sierra Nevada foothills. Comment
  CAS-BOT-BC272322  Lachnagrostis filiformis John Thomas Howell; Gordon H. True 1971-5-26 47621 Placer Noarthern limits of Lincoln 48 Comment
  JEPS126387  Lactuca serriola Steve Matson 1998-9-1 399 Placer Tahoe north shore Watershed, Tahoe Vista/Kings Beach; West Fork Snow Creek about 300 yards NW of pond. Comment
  CAS-BOT-BC341359  Lagophylla glandulosa David D. Keck 1932-7-1 1589 Placer 2 miles N. of Auburn on Nevada City road 425 Comment
  UC89190  Lagophylla glandulosa Mrs. M. E. P. Ames 1886-1-1 Placer Auburn Comment
  CAS-BOT-BC341360  Lagophylla glandulosa John Thomas Howell 1929-10-4 4435 Placer 4 miles below Colfax on road to Auburn Comment
  POM361518  Lasthenia californica Ames s.n. Placer Auburn. Comment
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Mar 15 2014
  UC30449  Lasthenia californica H. N. Bolander 1865-4-11 4545 Placer Auburn Comment
  CAS-BOT-BC337941  Lasthenia californica H. N. Bolander 1865-4-11 4545 Placer Flats at Auburn Comment
  SEINET9331375  Lasthenia fremontii Unknown 1988-4-20 304 Placer Along hwy 65 in pasture, 1.8 km from 5th St/rd 65 on E side of Hwy 65 Comment
  UCD106371  Lathyrus lanszwertii var. lanszwertii C. L. Hitchcock 1949-6-6 19069 Placer Roadside ca. 5 miles south of Tahoe, W side of Lake Tahoe. Comment
  UCD33742  Lathyrus latifolius Beecher Crampton 1972-7-26 8854 Placer Placer County, Carpenter Flat east of Emigrant Gap. 1615 Comment
  SEINET5327309  Lathyrus latifolius A. Allen 1950-4-29 26 Placer 9 mi from Folsom on Loomis Folsom road, 244 Comment
  CHSC89283  Lathyrus sulphureus G. F. Hrusa; M. I. Wibawa, J. Glazner 2002-5-22 16053 Placer Sierra Nevada. Hughes Mill (site) above Foresthill. UTM: 10S, 4329930 N, 0691823 E. 1066 Comment
  POM260418  Lathyrus sulphureus C. L. Hitchcock 1940-5-7 6320 Placer 1 mile west of Baxter. Comment
  UC15356  Lathyrus sulphureus H. N. Bolander 1866-4-11 4537 Placer Banks of American River Auburn Comment
  UCD15487  Lathyrus sulphureus Greg Cohler 1984-5-26 9 Placer 16 miles E. of Forest Hill Rd. on F.S. 97. 914 Comment
  CAS-BOT-BC321711  Layia fremontii Peter H. Raven 1954-4-16 6602 Placer 7 mi S of Lincoln on road to Roseville. Comment
  CAS-BOT-BC321708  Layia fremontii Peter H. Raven; G. L. Stebbins, Jr. 1952-4-29 4001 Placer 4.4 mi. from Bear River crossing on road to Auburn. Comment
  SD260903  Layia pentachaeta subsp. pentachaeta George K. Helmkamp, Mary Alice Barnes 2013-4-18 20337 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim Road, 0.9 mil East of its junction with Canyon Way, 4.4 miles SE (167a^z) of Colfax (Colfax 7.5'Q) 561 Comment
  UC177013  Layia pentachaeta subsp. pentachaeta Katharine Brandegee Placer Auburn Comment
  UCR250057A  Layia pentachaeta subsp. pentachaeta George K. Helmkamp, Mary Alice Barnes 2013-4-18 20337 Placer Northern Serrra Nevada Mountains Foothills, Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 deg. ) of Colfax 561 Comment
  RSA293381  Layia pentachaeta subsp. pentachaeta Reino Alava 1958-5-3 2012 Placer Along the road near the North Fork Dam of the American River; south [end] of Lake Clementine. About 3 miles northeast of Auburn Comment
  SD6093  Ledum glandulosum unknown Aug 1914 Placer Summit Comment
  JEPS71354  Lemna turionifera L. R. Heckard with R. Bacigalupi, T. I. Chuang 1973-7-28 3456 Placer 7 mi s of Sierra County line (w of highway 89, on n side of Sage Hen Creek); Sage Hen Creek 1889 Comment
  SEINET3167471  Leontodon saxatilis subsp. longirostris R. W. Spellenberg, N. Zucker 2010-4-16 14153 Placer N edge of Lincoln along Hwy 65 45 Comment
  UCR233020  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2011-5-12 17256 Placer Southern Sacramento Valley, south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave. 41 Comment
  CAS-BOT-BC88833  Lepidium campestre M. S. Jussel 1928-6-25 s.n. Placer Tahoe Tavern, Tahoe City. Comment
  HSC33424  Lepidium campestre Thomas W. Nelson, James Nelson 1974-6-17 1376 Placer Dollar Point overlooking Lake Tahoe, N of Tahoe City 1585 Comment
  RSA0033852  Lepidium latifolium Barbara Ertter 1999-7-9 16757 Placer Emigrant Gap Vista Point on Interstate 80. Comment
  UCD115694  Lepidium latifolium S. P. Fisher 1969-10-20 s.n. Placer 1 sq. rd. infestation along S.P.R.R. tracks, 3/4 mi. n.e. of Loomis. Comment
  CAS-BOT-BC89734  Lepidium latifolium S. P. Fisher 1969-10-20 s.n. Placer Along Southern Pacific Railroad tracks, 0.75 mile northeast of Loomis. Comment
  SEINET5326387  Lepidium nitidum A. Tiehm, Hugh Mozingo; Margaret Williams; Emily McPherson 1975-1 603 Placer One mile north of Lincoln Comment
  UCD22379  Lepidium virginicum Rex Palmer 1979-6-8 N 121 Placer Headwaters basin area of the North Fork of the American River. Comment
  HSC33421  Lepidium virginicum var. menziesii Thomas W. Nelson, James Nelson 1974-6-17 1371 Placer Dollar Point overlooking Lake Tahoe, N of Tahoe City 1585 Comment
  UCR146922  Lepidium virginicum var. pubescens Beecher Crampton 1961-9-27 6017 Placer Sierra Nevada Mountains, Blue Canyon, railroad right-of-way 1431 Comment
  POM260279  Leptosiphon bolanderi C. L. Hitchcock 1940-5-15 6407 Placer 6 miles N of Colfax Comment
  CHSC44327  Leptosiphon ciliatus Lowell Ahart 1972-7-7 137 Placer In a wash, near the Middle Fork of the American River, on the east side of the river near Ahart Camp, about 1 mile north-east of French Meadows Reservoir. 1524 Comment
  UCD75724  Leptosiphon ciliatus Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5161 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek, south side of trail between creek and trail. 2136 Comment
  POM74450  Leptosiphon ciliatus Katherine Brandegee 1908-07 s.n. Placer Between Cisco and Summit Comment
  SD247474  Leptosiphon harknessii George K. Helmkamp, E. A. Helmkamp 2012-6-19 19235 Placer Northern Sierra Nevada Mountains: Foresthill Road, 6.9 miles east of its junction with Devil's Thumb Road. 1972 Comment
  UC1287477  Lessingia leptoclada Willard Spence 1960-9-7 627 Placer Route 49 1 mi e Auburn (on road to Cool) Comment
  CAS-BOT-BC342045  Lessingia virgata A. A. Heller 1915-9-12 12275 Placer In fields near Roseville Comment
  UC1221738  Lessingia virgata Beecher Crampton 1958-7-11 5010 Placer rolling valley plain 3.3 mi e Sheridan Comment
  CAS-BOT-BC334599  Leucanthemum vulgare Peter H. Raven 1956-8-4 9982 Placer Blue Canyon, Sierra Nevada 1432 Comment
  CDA38865  Leucothoe davisiae T. C. Fuller 1973-8-23 19982 Placer Sierra Nevada; Southeast of Robinson Flat Guard Station. Comment
  UC82845 Image available Lewisia kelloggii A. Kellogg 1870-6-27 Placer Camp Yuba (Cisco) Sierra Nevada Comment
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Apr 4 2011
  CAS-BOT-BC444162  Lewisia nevadensis A. A. Heller 1917-6-17 12714 Placer Along the Yuba River below Cisco 1676 Comment
  CAS-BOT-BC444163  Lewisia nevadensis W. A. Gosline; A. R. Gosline 1943-6-26 s.n. Placer Norden Comment
  UCD21925  Lewisia triphylla Beth Lowe Corbin 1982-8-4 230 Placer 1/2 mile NNW of Onion Creek campground. In damp meadow in White Fir forest. Small, fleshy herb, with white flowers. Mostly shade. SW facing slope, 10% incline. Locally abundant. 2072 Comment
  RSA123481B  Leymus triticoides H. S. Yates 1934-6-29 3869 Placer Near Brockway; Truckee 1921 Comment
  UCD38667  Leymus triticoides Beecher Crampton 1956-7-17 3725 Placer Blue Canyon. 1432 Comment
  RSA0026219  Ligusticum John F. Emmel 1997-7-25 1508 Placer Sierra Nevada, Donner Pass region; along Pacific Crest Trail south of Donner Pass, ca. 0.5 air mile SE of SE end of Lake Mary. 2287 Comment
  CDA24986  Ligusticum grayi J. Glazner 2000-8-16 s.n. Placer Lake Tahoe; Betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. 1889 Comment
  JEPS72671  Ligusticum grayi Gladys L. Smith 1972-6-18 3139 Placer Alpine Meadows 2072 Comment
  POM132902  Ligusticum grayi Allen M. Carpenter 1892-08 4010 Placer Sierra Nevada Mountains Comment
  SEINET9341185  Ligusticum grayi George Hrusa, Glazner, J. 1997-8-3 14026 Placer Corner of Hwy 89 and Squaw Valley Rd, Scattered plants in dry, and shady parts of coniferous forest dominated by Pinus jeffreyi, Abies concolor. Perennial. USGS Quadrangle: Tahoe City 7.5 Comment
  UC1191176  Ligusticum grayi Herbert L. Mason 1939-8-3 12201 Placer 7 mi. n.w. Tahoe City (Squaw Valley); Squaw Valley 1889 Comment
  UCD21592  Ligusticum grayi E. Dean; M. Starbuck, C. Tresan, S. Tresan 2002-7-30 1255 Placer Vicinity of the town of Soda Springs. Along trail that starts at Soda Springs Rd. and travels E from the Serene Lakes region up ca. 100 m to a ridge that looks down on Lake Van Norden and railroad tracks. W-facing slope, descending ridge. 2200 Comment
  UCD75699  Ligusticum grayi Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5148 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek, forest clearing off trail. 2112 Comment
  SEINET13944257 Image available Ligusticum grayi A. A. Heller 1917-1 2933 Placer Mt. Lincoln south of Summit valley. Elev ca 8200 ft 2499 Comment
  UCR215902  Lilium humboldtii subsp. humboldtii George K. Helmkamp, Amy Barnes 2009-7-12 15171 Placer Sierra Nevada Mountains Foothills, along Foresthill Road at the northeast end of the city of Foresthill 985 Comment
  SEINET3887477  Lilium parvum Bonnie C. Templeton 1931-7-4 1504 Placer Near Meeks Bay, Lake Tahoe.; 0 2280 Comment
  CAS-BOT-BC508485  Lilium parvum A. A. Heller 1919-7-26 13312 Placer West of Donner Pass 2072 Comment
  CAS-BOT-BC508487  Lilium parvum W. W. Price 1892-7-1 s.n. Placer Red Point 1371 Comment
  CAS-BOT-BC508491  Lilium parvum A. M. Vollmer; L. Beane 1951-7-1 189 Placer Bear Valley, east of Nevada City Comment
  LA84032  Lilium washingtonianum O. H. Kappler; 1946-6-18 1321 Placer Lake Tahoe, NW shore 1920 Comment
  CAS-BOT-BC334223  Lilium washingtonianum var. washingtonianum George K. Helmkamp; Mary Alice Barnes; E. A. Helmkamp 2012-9-8 19796 Placer Northern Sierra Nevada Mountains: Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  SEINET8727023 Image available Limnanthes alba Charles T. Mason Jr. 1949-1 1294 Placer 4.3 miles S. W. of Placerville along U. S. Highway 50. Comment
  UCD162603  Limosella acaulis Steve Matson 1998-6-24 295 Placer nSNH; Tahoe north shore; Snow Creek watershed, Tahoe Vista/Kings Beach; edge of pond. 1908 Comment
  CAS-BOT-BC246054  Limosella aquatica Ira L. Wiggins 1933-8-21 6788 Placer Shores of Lake Tahoe, near Tahoma Comment
  SEINET3163744  Linanthus bicolor G. B. Grant 1906-7-20 696 Placer Pacific Coast; Lake Tahoe 1829 Comment
  UC880328  Linanthus ciliatus P. A. Lebenbauer 1923-6-10 Placer near Homewood; Lake Tahoe Comment
  UC30146  Linanthus filipes H. N. Bolander 1865-1 4567 Placer Auburn Comment
  UC880295  Linanthus filipes Marcus E. Jones, A. M. Jun 1882 Placer Emigrant Gap Comment
  UCR240726  Linanthus harknessii George K. Helmkamp, E. A. Helmkamp 2012-6-19 19235 Placer Northern Sierra Nevada Mountains, Foresthill Road, 6.9 miles east of its junction with Devil's Thumb Road 1973 Comment
  UCR229547  Linum lewisii var. alpicola George K. Helmkamp, E. A. Helmkamp 2011-7-26 17891 Placer Northern Sierra Nevada Mountains, Bowman Lake Road, 0.9 mile north of its junction with CA Hwy 20, 0.85 mi. NE (23 deg. ) of Emigrant Gap and N of I-80 1434 Comment
  SACT002872  Lithocarpus densiflorus Michael Baad 1983-6-26 Placer 1.4 miles southeast of Forest Hill Divide Road on Michigan Bluff Road. 1158.24 Comment
  UC1334177  Lithocarpus densiflorus Thomas Morley 1946-9-28 814 Placer 2.5 mi nne Alta 1249 Comment
  CAS-BOT-BC36162  Lithocarpus densiflorus var. densiflorus D. L. Smith; G. L. Stebbins 1976-7-4 C 7682 Placer Little Crater, on north side of Ralston Ridge. 1463 Comment
  CAS-BOT-BC36571  Lithocarpus densiflorus var. echinoides P. W. Rundel 1967-9-6 2653 Placer American River Grove of Sierra redwoods; Tahoe national Forest; ca. 20 miles NE of Foresthill; Comment
  CAS-BOT-BC430966  Lithophragma bolanderi W. A. Weber; Lewis S. Rose 1953-5-19 8389 Placer open grassy hills 1 mi. s. e. of Auburn 304 Comment
  SACT001441  Lolium multiflorum D. Meyer 1983-5-15 Placer Moist roadside ditch next to cultivated field. 19.812 Comment
  SACT001445  Lolium multiflorum D. Meyer 1983-5-7 Placer Roadside Comment
  SACT001452  Lolium perenne D. Meyer 1983-6-18 Placer Shady area. 1170.0 Comment
  SEINET3282812 Image available Lolium perenne subsp. multiflorum George K. Helmkamp, E. A. Helmkamp 2009-4-22 14567 Placer Sierra Nevada Mountains Foothills; Forest Hill Road 1.9 mile east of its junction with CA-49 and the North and Middle Forks of the American River. 399 Comment
  UCR173175  Lolium perenne subsp. multiflorum George K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10128 Placer Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin 122 Comment
  CAS-BOT-BC226936  Lomatium caruifolium var. denticulatum George K. Helmkamp; E. A. Helmkamp 2011-4-10 17169 Placer Sacramento Valley: along Riosa Road, 2.3 miles east of Sheridan 43 Comment
  UCD41246  Lomatium utriculatum Ellen Dean; Art Shapiro, Adrienne Shapiro 2003-5-12 1701 Placer Dutch Flat area, north of Hwy 80 near Alta Exit. Along Drum Powerhouse Road, about 1.5 road miles northeast of intersection with Main St. 1066 Comment
  UC1125222  Lonicera conjugialis N. French 1934-6-8 404 Placer Cisco Butte Tahoe National Forest, Colfax Quadrangle Comment
  CAS-BOT-BC240669  Lonicera interrupta Marcus E. Jones 1882-7-3 s.n. Placer Colfax Comment
  UC15545  Lotus aboriginus H. N. Bolander Apr 1865 4617 Placer Forest Hill Comment
  RSA0037369  Lotus argophyllus var. fremontii George K. Helmkamp, Mary Alice Barnes 2013-5-3 20502 Placer Mosquito Ridge Road at the north side of the bridge over West Fork of North Fork American River, 5.2 mi. east (87 ) of Forest Hill 422 Comment
  UCD41422  Lotus corniculatus A. M. Shapiro 2002-6-15 s.n. Placer Old Highway 40, Donner Pass-Norden area. 2133 Comment
  SEINET5453657 Image available Lotus corniculatus E. Neese 1980-10-15 9985 Placer Gravel banks- roadside- in scrub oak community. Comment
  JEPS83670  Lotus humistratus W. H. Shockley Jun 1886 Placer Auburn Comment
  RSA0039066  Lotus humistratus George K. Helmkamp, Mary Alice Barnes 2013-4-18 20345 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  UCR188846  Lotus humistratus George K. Helmkamp, E. A. Helmkamp 2007-3-25 11711 Placer Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 0.9 mile east of its junction with CA-49 at the bridge of the junction of American River forks 287 Comment
  UC864948  Lotus micranthus C. L. Hitchcock 1940-5-7 6322 Placer ca 1 mi w Baxter Comment
  UCR208265  Lotus micranthus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14645 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill 476 Comment
  UCR208602  Lotus micranthus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14620 Placer Sierra Nevada Mountains Foothills, Oxbow Road, 2.0 miles south of its junction with Mosquito Ridge Road; north edge of Oxbow Reservoir 402 Comment
  UC65765  Lotus nevadensis var. nevadensis P. B. Kennedy and S. B. Doten 1901-8-7 249 Placer Summit Soda Springs Comment
  RSA406240  Lotus oblongifolius McFadden 1934-7-2 12717 Placer N. fork of American River, Rawhide Mine - Alta. Comment
  RSA689638  Lotus oblongifolius var. nevadensis Beecher Crampton 1972-7-26 8855 Placer 1 miles west of Cisco Grove o n Interstate 80. 1677 Comment
  UC1129108  Lotus oblongifolius var. oblongifolius N. French 1934-5-31 392 Placer Mammoth Springs Tahoe National Forest, Colfax Quad. 1645 Comment
  UCR206836  Lotus pinnatus George K. Helmkamp, E. A. Helmkamp 2009-7-16 15210 Placer Sierra Nevada Mountains, Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  UC147571  Lotus purshianus var. purshianus Miss Harriet A. Walker 1908-6-24 1243 Placer Blue Canyon 1432 Comment
  UC862213  Lotus purshianus var. purshianus A. A. Heller 1917-8-12 12872 Placer w of Emigrant Gap (Southern Pacific reservoir) Comment
  RSA750434  Lotus uliginosus George K. Helmkamp, E. A. Helmkamp 2008-8-20 14024 Placer Donner Pass Road on the west side of Donner Pass and east of Norden 2149 Comment
  UC194800  Lupinus C. F. Sonne 1891-4-5 Placer along R.R. bet. Auburn and Newcastle; bet. Auburn and Newcastle Comment
  SEINET3246117  Lupinus adsurgens G. K. Helmkamp, E. A. Helmkamp 2007-1 12630 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 Comment
  UCD105842  Lupinus adsurgens G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12630 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UC1129278  Lupinus albifrons C. R. Clar 1933-5-12 118 Placer Applegate Hill; Colfax Quad., Applegate Hill Comment
  CAS-BOT-BC201561  Lupinus albifrons var. albifrons Elmer I. Applegate 1928-4-22 5362 Placer 3 miles above Auburn on the Grass Valley road Comment
  UCR172652  Lupinus albifrons var. albifrons George K. Helmkamp, Elizabeth Helmkamp 2006-4-13 10195 Placer Northern Sierra Nevada Foothills, Forest Hill Road, 2.5 mi east of its junction with Calif. Hwy 49. North side of the middle fork of the American River, NE of Auburn 274 Comment
  UCD106274  Lupinus albifrons var. collinus G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11713 Placer Foothills, Northern Sierra Nevada Mountains: Forest Hill Road at the junction with the unnamed road to Lake Clementine. 139 Comment
  UCR208263  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14646 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill 476 Comment
  SEINET3131542  Lupinus andersonii A. A. Heller 1909-7-16 9839 Placer Summit 2134 Comment
  UC1129257  Lupinus andersonii G. F. Burks 1934-9-14 42 Placer Truckee River; Tahoe National Forest, Truckee Quadrangle Comment
  UCD106437  Lupinus andersonii S. L. Smith Date Unknown 753 Placer Squaw Valley. Comment
  UCD106580  Lupinus apertus A. A. Heller 1909-7-16 9839 Placer Summit. 2133 Comment
  UC477529  Lupinus apertus L. S. Smith 1931-6-3 2553 Placer summit at Duncan Peak; Tahoe National Forest, summit at Duncan Peak 2133 Comment
  JEPS48702  Lupinus arbustus Leland S. Smith 1927-8-6 2158 Placer Robertson Flat Ranger Station Tahoe National Forest, Robertson Flat Ranger Station 2346 Comment
  UC150140  Lupinus arbustus A. A. Heller 1909-7-16 9857 Placer summit, Placer Co. Comment
  UCR270697  Lupinus arbustus John F. Emmel 1998-7-9 1576 Placer Sierra Nevada Mountains, Donner Pass area, north peak of Mt. Judah 2500 Comment
  RSA0028923  Lupinus arbustus John F. Emmel 1997-7-25 1509 Placer Sierra Nevada, Donner Pass area. West slope of Mt. Judah. Section 21 and Section 28. 2409 Comment
  CAS-BOT-BC208840  Lupinus argenteus var. meionanthus E. E. Stanford 1933-8-22 2257 Placer Near Lake Tahoe Comment
  JEPS65342  Lupinus argenteus var. meionanthus C. F. Sonne 1886-8-16 52 Placer mts above Coldstream (near Tinker Knob); Sierra Nevada Mountains, mts above Coldstream 2438 Comment
  RSA308742  Lupinus aridus Betty J. Jorgensen 1944-7-23 526 Placer Near Soda Springs. Comment
  RSA414453  Lupinus aridus Ronald Davidson 1921-8-8 3456 Placer Tioga Pass Comment
  UCR250592  Lupinus benthamii George K. Helmkamp, Mary Alice Barnes 2013-4-18 20362 Placer Northern Sierra Nevada Mtns Foothills, Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 deg. ) of Weimar 512 Comment
  UCR257565  Lupinus benthamii George K. Helmkamp, Amy Barnes 2014-4-23 22774 Placer Sierra Nevada Mountains Foothills, Old Forest Hill Road, 0.4 mile northeast of its junction with CA-49 at North Fork American River 290 Comment
  HSC82233  Lupinus bicolor Thomas W. Nelson 1979-4-10 4593 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  JEPS65004  Lupinus bicolor R. E. Arp 1932-4-18 3 Placer Roseville Comment
  SD241817  Lupinus bicolor G. K Helmkamp, E. A. Helmkamp 2010-4-17 15886 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 4.2 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 359 Comment
  UCR198411  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2008-4-17 13296 Placer Sacramento Valley / Sierra Nevada Foothills, about 0.2 mile north of CA-193 on Fowler Road, about 6 miles east of Lincoln 93 Comment
  UCR198538  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2008-4-17 13281 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  POM216163  Lupinus densiflorus var. lacteus D. D. Keck 1933-6-1 2433 Placer Loomis, city limits on road to Folsom. Comment
  CDA27453  Lupinus latifolius var. columbianus T. C. Fuller 1983-7-19 20418 Placer South side of Highway 20 to Nevada City, 5 km. west of Interstate 80. 0 Comment
  UC82550  Lupinus latifolius var. viridifolius P. B. Kennedy and S. B. Doten 1901-8-18 412 Placer 7 mi from French Meadows (Talbots Home Camp); 7 mi from French Meadows, Talbots Home Camp Comment
  UC127525  Lupinus lepidus var. confertus Miss Harriet A. Walker 1908-7-28 1483 Placer Bank of Yuba River Cisco (Cisco); Bank of Yuba River Comment
  UCD108409  Lupinus lepidus var. confertus F. A. MacFadden 1934-7-18 s.n. Placer half way on highway between Carson City and Lake Tahoe. Comment
  SEINET8051737  Lupinus lepidus var. lobbii M. J. Williams 1973-7-3 73 -H-1 Placer [Sierra Nevada] Near Soda Springs. 2012 Comment
  CDA12397  Lupinus lepidus var. sellulus G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8525 A Placer Lake Tahoe; Upper Ward Valley, 4 miles SW of Tahoe City. Comment
  UC196063  Lupinus lepidus var. sellulus C. F. Sonne 1885-8-23 Placer Tinker's Knob 2895 Comment
  UC865513  Lupinus lepidus var. sellulus Alice Eastwood 1909-1 64 Placer Ward Creek; Lake Tahoe Region, Ward Creek Comment
  UCR120253  Lupinus lepidus var. sellulus George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5063 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120503  Lupinus lepidus var. sellulus George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5026 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR171401  Lupinus lepidus var. sellulus George K. Helmkamp, E. A. Helmkamp 2005-9-30 9964 Placer Northern Sierra Nevada Mtns., c. 3.5 mi NW of Lake Tahoe; Along the Truckee River and Calif. Highway 89, 0.1 mi N of Alpine Meadows Road 1902 Comment
  SEINET8056244  Lupinus lepidus var. sellulus A. A. Heller 1912-7-20 10588 Placer [Sierra Nevada] Summit 2073 Comment
  SDSU4678  Lupinus microcarpus var. densiflorus D. F. Howe 1948-5-21 1860 Placer 4 miles north of Auburn . Comment
  UCR194975  Lupinus microcarpus var. densiflorus George K. Helmkamp, E. A. Helmkamp 2007-5-18 11996 Placer Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 4.3 miles northeast of the bridge over the junction of North and West Forks of the American River 485 Comment
  CDA12006  Lupinus nanus G. F. Hrusa 1995-5-2 12187 Placer Sierra Nevada; along side of Mosquito Ridge Rd. approx. 3 km. E of Foresthill. Comment
  RSA790862  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18940 Placer Finning Mill Road at the junction with Forest Hill Road. 1144 Comment
  SD237439  Lupinus nanus G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15914 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, 5.6 miles south of junction with CA-49 at Pilot Hill, 0.65 mil north of the American River crossing (Pilot Hill 7.5'Q) 199 Comment
  SD260247  Lupinus nanus George K. Helmkamp, Mary Alice Barnes 2013-5-3 20484 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 miles east (92a^z) of Foresthill (Forest Hill 7.5'Q) 829 Comment
  UCR194968  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2007-5-18 11999 Placer Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 4.3 miles northeast of the bridge over the junction of North and West Forks of the American River 485 Comment
  UCD22085  Lupinus polyphyllus Rex Palmer 1979-7-26 N 835 Placer Headwaters basin area of the North Fork of the American River. Comment
  JEPS127429  Lupinus polyphyllus var. burkei Steve Matson 1998-8-21 386 Placer nSNH Tahoe North shore; Snow Creek Watershed, Tahoe Vista/Kings Beach; junction of North Ave and west Fork Snow Creek. Comment
  UCD109382  Lupinus polyphyllus var. polyphyllus G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11708 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 0.9 mile east of its junction with CA-49 at the bridge of the junction with American River forks. 287 Comment
  SEINET12164817  Lupinus sellulus J. H. Nishida 1985-1 792 Placer Homewood, Red Fir Forest 1829 Comment
  UC126755  Lupinus stiversii Miss Martha Brier June 1894 Placer Bear Valley; near Fowler Comment
  SEINET8057980  Lupinus stiversii A. Allen 1950-5-20 44 Placer Near the old highway 40, 1/4 mile west of Gold Run 1067 Comment
  SEINET10486288  Lupinus superbus B. Bolt 1934-8-22 Bolt 191 Placer Tahoe National Forest. Grayhorse Flat. 1829 Comment
  UCD142143  Luzula divaricata A. A. Heller 1917-8-14 12930 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  CHSC82656  Lythrum portula Lowell Ahart 2002-7-22 9890 Placer 50 yards northeast of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1780 Comment
  POM362222  Madia bolanderi Wm. Martin 1971-9-10 20265 Placer Blue Canyon Creek, 2 miles south of Ranger Station, Tahoe Natl. Forest. Comment
  UC34791  Madia citriodora unknown 1865-4-13 Placer New Castle Comment
  UCR218232  Madia citriodora George K. Helmkamp, E. A. Helmkamp 2010-6-26 16405 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  CAS-BOT-BC343777  Madia elegans L. R. Abrams 1927-9-13 12156 Placer Lincoln Highway, 11 miles east of Auburn Comment
  OBI82262  Madia elegans George K Helmkampf, Mary Alice Barnes 2013-5-3 20489 Placer Northern Sierra Nevada Mountains Foothills; Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 mi. east (92 deg. ) of Foresthill 829 Comment
  CAS-BOT-BC343771  Madia elegans Charles von Geldern 1912-5-1 s.n. Placer American River Comment
  SJSU3622  Madia exigua C. W. Sharsmith 1962-5-27 6913 Placer near Clipper Gap c. 6 mi N of Auburn on Donner Summit Rd (Hwy 40) 512 Comment
  CAS-BOT-BC342837  Madia glomerata H. M. Hall 1910-6-26 8746 Placer Cisco; on west slope of Sierra Nevada Comment
  UCR190154  Madia glomerata George K. Helmkamp, E. A. Helmkamp 2007-8-1 12646 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 Comment
  UC485303  Madia glomerata Katharine Brandegee Placer Summit Comment
  CAS-BOT-BC434231  Madia gracilis George K. Helmkamp; E. A. Helmkamp 2012-6-19 19219 Placer Northern Sierra Nevada Mountains Foothills: Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill. 1052 Comment
  JEPS119434  Madia gracilis George K. Helmkamp, Ann Kerchner, Amy Barnes 2011-7-26 17855 Placer Northern Sierra Nevada Mountains, Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 mi. NE (65 deg. ) of Emigrant Gap Comment
  SD248342  Madia gracilis George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20804 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road. 768 Comment
  CAS-BOT-BC343239  Madia gracilis David D. Keck 1932-6-30 1583 a Placer Ca. 4 miles S. of Colfax 640 Comment
  UCD22057  Maianthemum racemosum Rex Palmer 1979-6-20 N 279 Placer Headwaters basin area of the North Fork of the American River Comment
  JEPS74306  Marah fabacea John Thomas Howell, Gordon H. True 1972-3-17 7074 Placer 1 1/2 mi w Lincoln (just s of Auburn Ravine) 48 Comment
  UCD107633  Marah fabacea G. K. Helmkamp; E. A. Helmkamp 2006-2-24 10067 Placer Sacramento Valley; edge of Sierra Nevada Foothills: Junction of Clark Tunnel Road and CA Highway 193, E of Lincoln. 113 Comment
  RSA0038509  Marrubium vulgare George K. Helmkamp, Mary Alice Barnes 2013-5-3 20470 Placer SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road 974 Comment
  UCR198048  Medicago lupulina Beth Lowe Corbin 1982-8-13 347 Placer Headwaters Basin Area of the North Fork of the American River. 1/2 mi west of The Cedars 1723 Comment
  UCD107829  Medicago polymorpha G. K. Helmkamp; Elizabeth Helmkamp 2006-4-6 10125 Placer Northern Sierra Nevada Foothills: NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin. 122 Comment
  CAS-BOT-BC271156  Melica L. S. Smith 1926-6-18 52232 Placer East of Ice Lakes, Tahoe National Forest 2194 Comment
  UCD67013  Melica aristata Beecher Crampton 1955-6-15 2905 Placer Yankee Jims. Comment
  SACT001499  Melica californica Josephine Van Ess 1977-4-27 Placer Collected near top of hill where flume crosses the road. Dry slope. 140.2 Comment
  UCD36656  Melica californica Beecher Crampton 1955-6-15 2877 Placer Placer County, Bunch Canyon, 2 miles south of U.S. Highway 40, on Forest Hills Road. Comment
  UCD86437  Melica californica Beecher Crampton 1955-6-15 2867 Placer 0.5 mile south of U. S. Hwy. 40 on the Forest Hill Road. Comment
  SACT001496  Melica californica var. nevadensis Michael Baad 1983-5-5 Placer 3 miles southeast on Yankee Jim Road from Canyon Way Road, descending to North Fork of American River. 548.64 Comment
  JEPS111293  Melica fugax Steve Matson 2005-7-10 1387 Placer Martis Valley, southeast of Truckee, National Recreation Area, south of Highway 267 and north of Martis Creek, 500 meters W of parking area 1783 Comment
  UCD87387  Melica harfordii Beecher Crampton 1955-6-15 2897 Placer Placer County, Shirttail Canyon, 5.5 miles west of Iowa Hill. Comment
  SACT001528  Melica stricta Michael Baad 1976-8-4 Placer Ascent of creek bed draining Comment
  SACT001530  Melica stricta Michael Baad 1983-9-3 Placer From west slope to saddle between Mt Judah and Mt Lincoln. 2529.0 Comment
  SACT001550  Melica torreyana Josephine Van Ess 1979-6-5 Placer on bypass; lightly shaded bank 198.2 Comment
  SEINET11262285  Melica torreyana George Helmkamp, E. A. Helmkamp 2012-5-5 18915 Placer Northern Sierra Nevada Mountain Foothills: Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, .3 air miles SE of Clementine Dam on the American River (Auburn 7.5').; 0 396 Comment
  UCR218451  Melica torreyana George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16427 Placer Sierra Nevada Mountains Foothills, Yankee Jims Road on the east side of Yankee Jims Bridge over the North Fork American River, 5 mi. SE (146 deg. ) of Colfax 282 Comment
  RSA409911  Mentha canadensis Wm. Martin 1972-9-10 20226 Placer 1 mile east of Weimer on Hwy 80 Comment
  UC108372  Mentzelia dispersa C. F. Sonne 1885-7-11 Placer Sierra Nevada, Truckee Comment
  SCFS5111  Micranthes californica F. Felix, Erica Krimmel 2013-5-19 5 Placer North Fork American River, 0.1 mile east of Heath Falls overlook, on trail Comment
  SEINET6033452  Micranthes californica R. L. Smith 1942-4-3 s.n. Placer 10 miles east of Roseville 152 Comment
  JEPS127555  Micranthes odontoloma Steve Matson 2004-8-1 1078 Placer nSNH: Tahoe Basin west shore; Blackwood Canyon, 1/2 mile SE of Barker Pass. Comment
  UCD42905  Micranthes odontoloma C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 273 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  CAS-BOT-BC348387  Micropus californicus var. californicus David D. Keck 1933-5-31 2429 Placer Just south of Auburn on road to Roseville 305 Comment
  CAS-BOT-BC348682  Microseris acuminata Gordon H. True 1971-4-21 6525 Placer On Roseville-Lincoln Highway, ca. 5 miles north of Roseville Comment
  CAS-BOT-BC348683  Microseris acuminata K. Curran 1884-5-1 s.n. Placer Unspecified Comment
  JEPS35592  Microseris nutans L. S. Smith 1926-5-26 1868 A Placer Duncan Canyon Tahoe Forest, Duncan Canyon 1676 Comment
  CHSC72880  Microsteris gracilis L. P. Janeway; Eric Schroder 1998-7-13 5750 Placer Lake Tahoe Basin Management Unit- National Forest. North side of Blackwood Creek, 1.7 mi west of Lake Tahoe. 1938 Comment
  RSA481909  Microsteris gracilis subsp. gracilis Aaron Liston 1988-3-14 696 -2 Placer 3.5 miles N of Auburn; Dry Creek Road. 450 Comment
  JEPS79780  Mimulus aurantiacus Matt Herbrand 1916-7-2 Placer Emigrant Gap Comment
  UCR12596  Mimulus aurantiacus var. aurantiacus Cathy Scollieri 1972-4-23 42372- 04 Placer Sierra Nevada Mtns. Foothills, east side of Avery's Pond [near Folsom Lake, SE of Auburn] 143 Comment
  UC886165  Mimulus aurantiacus var. grandiflorus Marcus E. Jones, A. M. 1882-6-28 3288 Placer Emigrant Gap Comment
  UCR250171  Mimulus aurantiacus var. grandiflorus George K. Helmkamp, Mary Alice Barnes 2013-5-3 20477 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 mi. east (92 deg. ) of Foresthill 829 Comment
  UC573572  Mimulus breweri B. Bolt 1934-7-11 97 Placer Cascade Lakes Tahoe National Forest, Truckee Quadrangle 2042 Comment
  UC885737  Mimulus breweri Alice Eastwood July 1909 232 Placer Squaw Creek Yosemite Comment
  RSA795365  Mimulus cardinalis George K. Helmkamp, E. A. Helmkamp 2010-8-14 16775 Placer American Hill Road (Forest Route 13), 4.7 miles south of its junction with Foresthill Road and just south of a creek crossing 1552 Comment
  JEPS59499  Mimulus guttatus Ezra Brainerd and Viola B. Baird 1915-7-10 253 Placer Deer Park Sierra Nevada Mts. 1920 Comment
  UC26979  Mimulus guttatus C. J. Fox Jr. July, 1895 Placer Deer Park Inn Comment
  UCR218120  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2010-6-26 16395 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR191074  Mimulus jepsonii George K. Helmkamp, E. A. Helmkamp 2007-5-23 12057 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 11.1 miles northeast of Foresthill 1463 Comment
  CDA41697  Mimulus leptaleus S. E. Schoenig 1998-7-23 98 -78 Placer Pacific Crest Trail. 0.25 mile south of Old Donner Road. Tahoe National Forest. Comment
  JEPS103318  Mimulus leptaleus Lowell Ahart 2002-7-22 9903 Placer On the S side of a small natural lake, on the E side of the paved road to Lake Valley Reservoir, ca 1/4 mile E of Yuba Gap and Highway 80. 1773 Comment
  UC445154  Mimulus microphyllus H. M. Hall 1910-6-28 8721 Placer opposite Cisco; Sierra Nevada Mts., Rattlesnake Creek 1828 Comment
  UC725532  Mimulus microphyllus A. A. Heller 1941-5-10 16120 Placer 1 mi n Lincoln (along U. S. Highway #99E) Comment
  UCD21890  Mimulus microphyllus Rex Palmer 1979-7-19 N 227 Placer Exact location unknown. Comment
  JEPS86482  Mimulus moniliformis L. R. Heckard with J. Hickman and Alice Howard 1986-7-26 6562 Placer ca. 5 mi se Donner Lake (Sherman Chickering's Soda Springs holdings, on w flank of Tinker Knob) Comment
  UC1035681  Mimulus moniliformis Kay H. Beach 1940-6-30 811 Placer 2 1/2 mi w Cisco (s side of river); Yuba River 1676 Comment
  CHSC74274  Mimulus moschatus Susi Urie; Eric Schroder 1998-9-8 98 -283 Placer Meadow complex on north side of Ward Creek about 3.1 mi west of Lake Tahoe and Sunnyside. 2017 Comment
  UCD75693  Mimulus moschatus Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5142 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek, forest clearing off trail. 2112 Comment
  UCR240957  Mimulus moschatus George K. Helmkamp, E. A. Helmkamp 2012-9-25 19908 Placer Northern Sierra Nevada Mountains, Blue Canyon Road south of I-80 and 0.1 mile north of the Southern Pacific Railroad crossing 1451 Comment
  UC1585911  Mimulus pardalis Barbara Ertter with David Thompson 1989-4-8 8173 Placer ca. 2 mi from I-80 (Iowa Creek Rd, near entrance to Auburn State Recreation Area, at creek crossing) 518 Comment
  RSA569209  Mimulus primuloides Bonnie C. Templeton 1931-7-5 1507 Placer Near Meek's Bay, Lake Tahoe. 2280 Comment
  UC41880  Mimulus primuloides Chesnut and Drew 1890-8-8 Placer Cascade Lake Tahoe Comment
  POM5092  Mimulus primuloides var. pilosellus Allen M. Carpenter 1892-08 s.n. Placer [No location data on label] Comment
  UCD162557  Mimulus suksdorfii Steve Matson 1998-6-6 227 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; south side of Highway 267 50 meters east of Martis Creek. 1780 Comment
  UCD44452  Mimulus tilingii C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1818 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
  POM9975  Mimulus tilingii E. Keyes 1920-8-21 s.n. Placer Ellis Meadow near Lake Tahoe. Comment
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Jan 1 2016
  RSA757271  Mimulus torreyi George K. Helmkamp, E. A. Helmkamp 2009-7-16 15196 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 Comment
  SCFS5066  Mimulus torreyi E. Krimmel 2014-6-26 Placer Above NF river on north side, not far above Heath Falls overlook Comment
  UC573534  Mimulus torreyi N. French 1934-6-15 414 Placer Scott Hill Tahoe National Forest, Colfax Quadrangle 1463 Comment
  UCD40954  Mimulus torreyi Cathy Hendel 1973-6-9 132 Placer 6.3 miles on Ice House Road from Hwy 50. Comment
  CAS-BOT-BC174570  Minuartia californica Carl B. Wolf 1937-3-30 8349 Placer Sacramento Valley, 4 8/10 mi. E. of Lincoln on Penryn Road 91 Comment
  JEPS51427  Minuartia californica W. H. Shockley 1880-1 Placer Auburn Comment
  UCD98254  Minuartia californica F. M. Dummel 1967-4-26 12 Placer 2 miles west of Penryn. 228 Comment
  CDA12434  Mitella breweri G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8506 Placer Lake Tahoe; N side of upper Ward Valley, 4 mi. SW of Tahoe City. Comment
  SEINET6167722  Mitella breweri A. A. Heller 1909-7-16 9833 Placer Summit 2134 Comment
  UC883586  Monardella candicans Marcus E. Jones, A. M. 1882-7-4 3458 Placer Colfax Comment
  RSA463237  Monardella odoratissima J. H. Nishida 1985-7-10 776 Placer Homewood. 1829 Comment
  CAS-BOT-BC314188  Monardella odoratissima subsp. pallida H. M. Hall 1910-7-1 8731 Placer Cisco 1828 Comment
  UC1124559  Monardella odoratissima subsp. pallida N. French 1934-5-31 389 Placer 1/2 mi east of Texas Hill; Tahoe National Forest, Colfax Quadrangle Comment
  UCR216032  Monardella odoratissima subsp. pallida George K. Helmkamp, Amy Barnes 2009-7-12 15188 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  UCR257732  Monardella odoratissima subsp. pallida George K. Helmkamp, Ann Kerchner, Amy Barnes 2012-7-23 19518 Placer Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary 2136 Comment
  SEINET10582104  Monardella odoratissima subsp. pallida A. Graff 1993-7-21 Graff 273 Placer Tahoe National Forest, Squaw Valley. Hwy. 89, across from Silver Creek Campground. Locally abundant, large population, in the understory of Pinus contorta, P. ponderosa, Abies sp. forest. Comment
  SEINET5333350  Monardella odoratissima subsp. pallida H. A. Walker 1908-7-25 1389 Placer Cisco 1811 Comment
  POM296671  Monardella odoratissima subsp. pinetorum L. S. Rose 1941-7-16 41316 Placer Homewood, Lake Tahoe 1921 Comment
  UCD43991  Montia C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-11 1357 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
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Aug 7 2007
  JEPS126335  Montia chamissoi Steve Matson 1998-6-14 249 Placer nSNH; Martis Valley, about 4 miles SE of Truckee; Martis Creek Wildlife Area; north of Highway 267, west of Martis Creek, Comment
  UCD44713  Montia chamissoi C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 2079 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  CDA15758  Muhlenbergia filiformis G. F. Hrusa, L. Serafini 1993-6-29 11250 Placer Common in dense mats on poorly drained gravelly flats among granite boulders. Huckleberry oak chaparral within white fir-ponderosa pine forest. S side of French Meadows Reservoir, immed. below dam. Annual. Comment
  CDA15989  Muhlenbergia filiformis G. F. Hrusa, J. Glazner 1999-7-17 15171 Placer Martis Valley; Martis Valley, off Hwy 267, S of Truckee. . 1889 Comment
  UCD22225  Muhlenbergia filiformis Rex Palmer 1979-7-9 N 442 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD86596  Muhlenbergia filiformis Beecher Crampton 1955-7-13 2986 Placer Placer County, 3.5 miles east of Baxter, mountain slopes above U.S. Highway 40. Comment
  CHSC68075  Muhlenbergia richardsonis James D. Jokerst 1986-7-12 2690 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  OBI20096  Muhlenbergia richardsonis David J. Keil 1978-7-23 12935 Placer Cisco Grove exit from I-80, just E of Nevada Co. line 1768 Comment
  POM216165  Muhlenbergia rigens D. D. Keck 1933-6-1 2439 Placer South of Roseville, near Sacramento County-Placer County line. Comment
  SEINET4690946  Muhlenbergia rigens B. Crampton 1969-11-13 8530 Placer Welmar on Interstate 80 686 Comment
  UCR240921  Myosotis scorpioides George K. Helmkamp, E. A. Helmkamp 2012-6-19 19248 Placer Northern Sierra Nevada Mountains, Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road 2040 Comment
  UC1069121  Nama lobbii N. French 1934-5-28 374 Placer 1 1/2 mi w Black Mt.; Colfax Quad., Tahoe National Forest, w of Black Mt. Comment
  UC128216  Nama lobbii Miss Harriet A. Walker 1908-7-26 1490 Placer Cisco 1828 Comment
  UCR237449  Narcissus pseudonarcissus George K. Helmkamp, E. A. Helmkamp 2012-2-23 18573 Placer Sacramento Valley, Nicolaus Road, 0.4 mile west of South Dowd Road, west of Lincoln 45 Comment
  UC1153925  Nassella pulchra Beecher Crampton 1957-5-7 3984 Placer 6.8 mi n Roseville (valley plain); Whitney Ranch Comment
  UCD87469  Nassella pulchra Beecher Crampton 1957-5-7 3984 Placer Whitney Ranch, 6.8 miles north of Roseville. Comment
  RSA0037370  Nasturtium officinale George K. Helmkamp, Mary Alice Barnes 2013-5-3 20501 Placer Mosquito Ridge Road at the north side of the bridge over West Fork of North Fork American River, 5.2 mi. east (87 ) of Forest Hill 422 Comment
  RSA0035681  Navarretia George K. Helmkamp, Elizabeth A. Helmkamp 2012-6-19 19231 Placer Northern Sierra Nevada Mountains: Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road. 1671 Comment
  UCR240725  Navarretia George K. Helmkamp, E. A. Helmkamp 2012-6-19 19231 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  CHSC74111  Navarretia capillaris Susi Urie 1998-8-11 98 -011 Placer Lake Tahoe Basin--National Forest. About 0.5 mi north of Ward Creek, along a tributary; about 2 mi west of Lake Tahoe and Sunnyside. Meadow stringer. 2097 Comment
  JEPS127506  Navarretia capillaris Steve Matson 2000-6-7 472 Placer nSNH: Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; north side of Highway 267, east of Martis Creek Comment
  RSA562588  Navarretia capillaris Alva Day, Orbelia Robinson 1982-7-13 82 -83 Placer Tahoe National Forest, Highway 80, just E of Norden on trail 3/4 mi. above Sierra Club Lodge Comment
  SEINET14055763  Navarretia capillaris C. C. Hall 1910-6-25 8710 Placer [Sierra Nevada] Cisco 1850 Comment
  JEPS71473  Navarretia divaricata Gladys L. Smith 1972-6-20 3265 a Placer Wark Peak, just below summit Ward Peak 2590 Comment
  JEPS59486  Navarretia divaricata Ezra Brainerd and Viola B. Baird 1915-7-31 236 Placer Nevada City, Hospital Farm Sierra Nevada Mts. 1524 Comment
  UC217360  Navarretia divaricata subsp. vividior H. M. Hall 1910-6-25 8712 Placer Cisco Sierra Nevada Mountains Comment
  UC570285  Navarretia divaricata subsp. vividior G. T. Nordstrom 1934-6-21 150 Placer 0.4 mi nw Mammoth Springs; Tahoe National Forest, Colfax Quad. 1706 Comment
  RSA21275  Navarretia eriocephala C. B. Wolf 1937-5-12 8618 Placer Sacramento Valley, 1 mi N of Lincoln 46 Comment
  CDA36875  Navarretia intertexta CDFA Staff 1995-5-12 s.n. Placer Dry Creek. 0 Comment
  CHSC82655  Navarretia intertexta subsp. intertexta Lowell Ahart 2002-7-22 9895 Placer 50 yards northeast of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1780 Comment
  JEPS127514  Navarretia intertexta subsp. propinqua Steve Matson 1997-6-15 14 Placer Tahoe north shore; Snow Creek watershed, Tahoe Vista/Kings Beach. Comment
  SBBG64404  Navarretia leptalea M. N. Ackley -Jun-1925 808 Placer Summit 2139 Comment
  RSA123130  Navarretia leptalea subsp. bicolor N. H. French 1934-6-22 468 Placer Serena Lake 2409 Comment
  UC908966  Navarretia leptalea subsp. leptalea David R. Goddard 1927-7-26 1071 Placer near Tahoe Vista (Lake Tahoe, just n of California line); Lake Tahoe, near Tahoe Vista 2072 Comment
  JEPS70379  Navarretia leucocephala R. E. Arp 1932-4-28 2 Placer Roseville Comment
  UC718537  Navarretia leucocephala Carl B. Wolf 1937-5-12 Placer 1 mi n Lincoln; Sacramento Valley 45 Comment
  UC660002  Navarretia leucocephala Lincoln Constance 1941-5-28 2820 Placer 2 mi n Lincoln; Sacramento Valey 60 Comment
  JEPS113142  Navarretia leucocephala subsp. leucocephala Lowell Ahart, Brian Williams 2007-4-13 13664 Placer On the bottom of vernal pools, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln 43 Comment
  POM264777  Navarretia leucocephala subsp. leucocephala Lincoln Constance 1941-5-28 2820 Placer 2 miles north of Lincoln, Sacramento Valley. 61 Comment
  POM75593  Navarretia leucocephala subsp. minima Marcus E. Jones 1882-6-30 10108 Placer Emigrant Gap. Comment
  JEPS70437  Navarretia pubescens W. H. Shockley Jun 1886 Placer Auburn Comment
  UCD34170  Navarretia pubescens Beecher Crampton 1977-7-2 9511 Placer Placer County, 3.5 miles N.E. of Auburn, east of Elder's Corners on Dry Creek road. Comment
  JEPS126331  Nemophila heterophylla Steve Matson 2006-4-23 1600 Placer Northern Sierra Nevada west slope; Iowa Hill Road near Colfax at crossing of North Fork American River. Comment
  CAS-BOT-BC7208  Nemophila humilis Alice Eastwood 1898-6-8 s.n. Placer Summit Comment
  CDA19093  Nemophila maculata D. A. Mayhew 2001-3-19 s.n. Placer Sacramento Valley; NE of wet vernal pool, Aylesbury Way, Roseville. 0 Comment
  UC1021938  Nemophila menziesii Rolf Y. Berg 1954-4-15 Placer Auburn-Folsom Road eight mi s Auburn; s of Auburn Comment
  SD234422  Nemophila parviflora var. austiniae G. K. Helmkamp, E. A. Helmkamp 2007-5-30 12192 Placer Northern Sierra Nevada Foothills: Mosquito Ridge Road, 13.5 miles E of its junction with Forest Hill Road in Foressthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River (Michigan Bluff 7.5' Q) 800 Comment
  UCR194951  Nemophila parviflora var. austiniae George K. Helmkamp, E. A. Helmkamp 2007-5-18 12029 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road near the crossing of the North Fork of the West Fork of the American River; 9.5 miles southeast of Foresthill 439 Comment
  UC606979  Nemophila pedunculata L. Constance 1938-6-6 2278 Placer 6.5 mi w Cisco (Sierra Nevada); , w of Cisco 1584 Comment
  UCR250650  Nemophila pulchella var. gracilis George K. Helmkamp, Mary Alice Barnes 2013-4-18 20374 Placer Northern Sierra Nevada Mtns Foothills, Iowa Hill Road, 1.8 miles west of the bridge over North Fork American River, 0.6 mi. (airline) east of I-80 at Colfax 544 Comment
  SEINET3224819 Image available Nemophila spatulata Marcus E. Jones 1882-6-30 2816 Placer Emigrant Gap. Comment
  UCD22023  Nemophila spatulata Rex Palmer 1979-6-9 N 173 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD149397  Notholithocarpus densiflorus G. Ledyard Stebbins 1976-7-4 7682 Placer Little Crater. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD110222  Notholithocarpus densiflorus var. echinoides Eric Brenner; John Hunter 1996-5-26 015 Placer Big Trees, Mosquito Ridge Rd., Tahoe National Forest. 1740 Comment
  UCR231857  Notholithocarpus densiflorus var. echinoides George K. Helmkamp, E. A. Helmkamp 2010-8-11 16762 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek 1082 Comment
  UC469007  Oreostemma alpigenum var. andersonii H. M. Hall 1910-6-28 8725 Placer head of Fordyce Cr. 2103 Comment
  CAS-BOT-BC349976  Oreostemma alpigenum var. andersonii W. R. Dudley 1900-6-29 s.n. Placer Meadow back of Tahoe City Comment
  UC634780  Orogenia fusiformis H. L. Mason 1933-5-28 7237 Placer Lower Truckee R. Meadows Comment
  CAS-BOT-BC458057  Orthilia secunda C. F. Sonne 1885-10-11 209 Placer Sierra Nevada Mts: Summit at Lake Angeline Comment
  JEPS59380  Orthilia secunda Ezra Brainerd and Viola B. Baird 1915-7-26 128 Placer Sierra Nevada Mts. along Truckee River, Bear Rock 1889 Comment
  CDA15919  Orthocarpus cuspidatus subsp. cryptanthus G. F. Hrusa, J. Glazner 1999-7-17 15144 Placer Martis Valley; Martis Valley, off Hwy 267, S of Truckee. 1889 Comment
  UC1063494  Orthocarpus cuspidatus subsp. cryptanthus N. French 1934-6-22 447 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle, w of Lake Dulzura Comment
  UCD21898  Orthocarpus cuspidatus subsp. cryptanthus Beth Lowe Corbin 1982-8-4 241 Placer 1 1/2 mile north of Onion Creek campground. 2255 Comment
  RSA20883  Orthocarpus erianthus Carl B. Wolf 1937-3-30 8245 Placer Sacramento Valley, 4.8 miles east of Lincoln on Penryn Road. 91 Comment
  SACT001623  Oryza sativa Josephine Van Ess 1973-9-3 Placer Collected at Nicolaus road 5 miles w of Lincoln. Escape from cult. Comment
  UCR194696  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2007-5-30 12202 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 17 miles east of its junction with Forest Hill Road in Foresthill, NW of Ditch Camp 963 Comment
  RSA202359  Paeonia brownii Edward L Smith 1967-6-17 s.n. Placer 1 mile E of Emigrant Gap. 1616 Comment
  UCD34029  Panicum capillare subsp. hillmanii Beecher Crampton 1975-9-9 9281 Placer Placer County, Alta, Hwy. 80. 1188 Comment
  RSA654060  Panicum dichotomiflorum Beecher Crampton 1977-9-30 9531 Placer Applegate, Opposite grocery store Comment
  SACT001639  Panicum hillmanii Josephine Van Ess 1976-9-4 Placer Dry roadside 42.7 Comment
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Nov 20 2014
  SACT001644  Panicum pacificum Michael Baad 1983-6-27 Placer 4 miles east southeast of Forest Hill 365.0 Comment
  SACT001648  Panicum pacificum Michael Baad 1976-8-4 Placer Royal Gorge-Wabena Creek to Wild Cat Canyon Comment
  SEINET12219713  Parnassia palustris var. californica C. F. Sonne 1885-1 96 Placer above Coldstream Comment
  UCD88755  Paspalum dilatatum Collector Unknown 1939-6-23 s.n. Placer Catlin, Auburn. Comment
  UCD88972  Paspalum urvillei Beecher Crampton 1965-9-13 7499 Placer Gold Run, Interstate Hwy. 80. 975 Comment
  RSA463157  Pedicularis attollens Lyman Benson 1942-7-2 11261 Placer Highway junction 1 mile west of Truckee. Truckee River drainage area. 1829 Comment
  UCD18261  Pedicularis attollens E. A. Dean; N. Wymer, T. and M. Starbuck 1998-8-15 473 Placer NW shore of Lake Tahoe, W of Hwy 89, S of Donner Lake, upper slopes and meadows of Squaw Valley Ski Resort. 2499 Comment
  UC1293799  Pedicularis racemosa E. F. Sprague 1957-7-14 1600 Placer up slope behind Rainbow Tavern (and to e end of road, Hwy 40) 1828 Comment
  JEPS73663  Pedicularis semibarbata L. R. Heckard with G. L. Stebbins 1973-6-17 3452 Placer about 7 air mi se of Emigrant Pass (Summit of Big Valley Bluff); Big Valley Bluff 1935 Comment
  POM304164  Pedicularis semibarbata L. S. Rose 1941-7-12 41303 Placer Chambers Lodge, (McKinney), Lake Tahoe. 1951 Comment
  UC373264  Pedicularis semibarbata Marcus E. Jones, A. M. Jun 1882 Placer Emigrant Gap Comment
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Sep 7 2010
  UC886735  Pedicularis semibarbata Lewis S. Rose 1941-7-12 41303 Placer Chambers Lodge, (McKinney) Chambers Lodge; Lake Tahoe 1950 Comment
  UCR242362  Pedicularis semibarbata George K. Helmkamp, E. A. Helmkamp 2010-7-28 16659 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  RSA425315  Pedicularis semibarbata Wm Vortriede 1928-1 s.n. Placer Lake Tahoe. [El Dorado or Placer County] Comment
  CAS-BOT-BC69381  Pellaea breweri C. F. Sonne 1885-7-12 320 Placer Mountains above Coldstream 2438 Comment
  JEPS73135  Pellaea bridgesii Gladys L. Smith 1972-6-20 3269 Placer Ward Peak 2286 Comment
  UCD69352  Pellaea bridgesii S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  CAS-BOT-BC67604  Pellaea bridgesii David D. Keck 1932-6-30 1573 Placer Sierra Nevada - 1 mile E. of Cisco. 1798 Comment
  CAS-BOT-BC67622  Pellaea mucronata Peter H. Raven; G. L. Stebbins, Jr. 1952-4-20 4018 Placer Abvoe bridge on North Fork American River on Rt. 49. 365 Comment
  CAS-BOT-BC258795  Pennisetum clandestinum R. L. Reeves 1972-10-20 s.n. Placer Grounds of Dewitt State Hospital, 3 miles north of Auburn Comment
  SDSU10918  Penstemon azureus D. F. Howe 1978-7-15 5072 Placer Rte 20, 27 miles W of Truckee. 1585 Comment
  POM44119  Penstemon azureus subsp. angustissimus Marcus E. Jones 1882-7-3 3437 Placer Colfax. Comment
  UCR194959  Penstemon azureus subsp. angustissimus George K. Helmkamp, E. A. Helmkamp 2007-5-18 12011 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  NY571189  Penstemon azureus var. azureus H. M. Hall 1910-6-19 8702 Placer Cisco, in the Transition Zone 1800 Comment
  UC128134  Penstemon azureus var. azureus Miss Harriet A. Walker 1908-7-26 1436 Placer Cisco 1828 Comment
  UC580689  Penstemon azureus var. azureus B. Bolt 1934-7-11 96 Placer Cascade Lakes Truckee Quadrangle Comment
  RSA780095  Penstemon breviflorus subsp. glabrisepalus Marcus E. Jones 1882-7-3 s.n. Placer Colfax. Comment
  JEPS15127  Penstemon deustus N. French 1934-6-22 439 Placer 1/2 mi w Lake Van Norden; Tahoe N.F., Truckee Quadrangle Comment
  POM160145  Penstemon deustus subsp. deustus V. Newsom 1929-7-2 s.n. Placer Banks of Truckee River, below Lake Tahoe. Comment
  JEPS71738  Penstemon heterodoxus Gladys L. Smith 1972-6-21 3195 Placer plateau about terminus of Summit chairlift, Ward Peak Ward Peak 2621 Comment
  UCD18262  Penstemon heterodoxus E. A. Dean; N. Wymer, T. and M. Starbuck 1998-8-15 474 Placer NW shore of Lake Tahoe, W of Hwy 89, S of Donner Lake, upper slopes and meadows of Squaw Valley Ski Resort. 2499 Comment
  UC480749  Penstemon heterodoxus var. heterodoxus W. C. Blasdale 1923-7-13 Placer top of Ellis Peak Lake Tahoe Region, top of Ellis Peak Comment
  UCD123928  Penstemon neotericus D. Sanchez-Mata 1997-8-9 s.n. Placer Blue Canyon Road near Blue Canyon. Tahoe National Forest. Mesic white fir forests. 1500 Comment
  UCD69249  Penstemon neotericus D. Sanchez-Mata 1997-8-9 s.n. Placer Blue Canyon Road near Blue Canyon. Tahoe National Forest. Mesic white fir forests. 1500 Comment
  UCR233462  Penstemon neotericus George K. Helmkamp, E. A. Helmkamp 2011-8-26 18190 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat 2050 Comment
  OBI24256  Penstemon newberryi N. H. Russell 1961-6-16 11041 Placer 5 mi E of Calif 89, S end of Lake Tahoe Comment
  UCD124296  Penstemon newberryi Beecher Crampton 1970-6-25 8626 Placer 1 mile west of Kingvale, Interstate Hwy. 80. 1859 Comment
  CAS-BOT-BC239277  Penstemon newberryi var. berryi L. S. Smith 1926-6-8 1902 Placer Tahoe National Forest, French Lake, rocky slopes east side 2133 Comment
  NY627344  Penstemon newberryi var. newberryi A. A. Heller 1917-6-18 12710 Placer Along the Yuba River below Cisco 1645.9 Comment
  CHSC91784  Penstemon roezlii G. F. Hrusa; J. Glazner 2000-7-1 15622 Placer Northern Sierra Nevada. Summit Village, Truckee. Along Donner Creek adjacent to Hwy 89. UTM: 10S, 43571 N, 07411 E. 1844 Comment
  JEPS15334  Penstemon roezlii G. T. Nordstrom 1934-6-19 122 Placer 1/2 mi ne of mouth Monumental Creek; Tahoe National Forest, Colfax Quad. Comment
  POM44791  Penstemon roezlii Marcus E. Jones 1882-7-1 3434 Placer Emigrant Gap. Comment
  SEINET4560774  Penstemon roezlii George K. Helmkamp, E. A. Helmkamp 2010-1 16647 Placer Northern Sierra Nevada Mountains; Forest Hill Road at Hidden Treasure Road, 10.4 miles northeast of the city of Foresthill. 1384 Comment
  UC146890  Penstemon roezlii Katharine Brandegee Placer Emigrant Gap Comment
  UC887107  Penstemon roezlii Lewis S. Rose 1941-7-23 41357 Placer Chambers Lodge (McKinney) Lake Tahoe 1920 Comment
  CHSC74130  Penstemon rydbergii var. oreocharis Susi Urie 1998-8-18 98 -065 Placer About 0.2 mi north of Lake Tahoe; large meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  JEPS11485  Penstemon rydbergii var. oreocharis W. L. Jepson 1931-6-17 15932 Placer Tahoe City Lake Tahoe, Tahoe City 2042 Comment
  SCFS2387  Penstemon rydbergii var. oreocharis L. Hooker 1956-6-27 20 Placer Ca 3.7 mi past Montreal Rd on Hwy 89 S, in mdw to left of rd. 1829 Comment
  UCD44683  Penstemon rydbergii var. oreocharis C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 2049 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  SEINET5329702 Image available Penstemon rydbergii var. oreocharis A. A. Heller 1909-7-16 9852 Placer Summit, 2134 Comment
  JEPS59361  Penstemon speciosus Ezra Brainerd and Viola B. Baird 1915-7-23 111 Placer Tahoe City Sierra Nevada Mts., Tahoe City 1920 Comment
  RSA401781C  Penstemon speciosus Bonnie C. Templeton 1931-7-5 1510 Placer Near Meek's Bay, Lake Tahoe. 2204 Comment
  RSA401883  Penstemon speciosus Bonnie C. Templeton 1931-7-5 1510 Placer Near Meek's Bay, Lake Tahoe. 2280 Comment
  SD247511  Penstemon speciosus George K. Helmkamp, Elizabeth A. Helmkamp 2012-6-19 19226 Placer Northern Sierra Nevada Mountains: Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road (Duncan Peak 7.5'Q) 1671 Comment
  UCR240904  Penstemon speciosus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19226 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  RSA101445  Penstemon speciosus R. Weatherby 1955-6-22 1534 Placer Road to Spanish Peak lookout. 1829 Comment
  UCR250341  Pentagramma pallida George K. Helmkamp, Mary Alice Barnes 2013-4-18 20368 Placer Northern Sierra Nevada Mtns Foothills, Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 deg. ) of Weimar 512 Comment
  SEINET6626634  Pentagramma triangularis Unknown 1960-2-20 s.n. Placer Junction of north and middle forks of American River Comment
  CHSC74184  Perideridia lemmonii Susi Urie 1998-9-4 98 -244 Placer On north side of Ward Creek about 2.9 mi west of Lake Tahoe and Sunnyside. 2011 Comment
  UCD80213  Petrorhagia dubia CNPS SN Foothill Team 2005-4-12 SNFN 0105 a Placer Placer Legacy Spears/Didion Ranch, site is located in the Spear's Ranch boundary off of Highway 49. The south-facing plot is above Coon Creek. 216 Comment
  SFV8392  Petrorhagia dubia M. D. Clegg 1963-5-4 27 Placer Folsom Reservoir, 2 miles north of Folsom in southeast corner of Placer County. 61 Comment
  UCD22076  Phacelia Rex Palmer 1979-6-20 N 325 Placer Headwaters basin area of the North Fork of the American River. Comment
  SEINET2441255  Phacelia hastata var. hastata George K. Helmkamp, E. A. Helmkamp 2009-8-12 15439 Placer Sierra Nevada Mountains: Forest Hill Road, 0.8 mile west of Robinson Flat, ca 27 miles NE of the city of Foresthill. (Duncan Peak 7.5' Q.).; 0 2034 Comment
  UCD43241  Phacelia heterophylla C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-13 610 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  UCR193394  Phacelia heterophylla subsp. virgata George K. Helmkamp, E. A. Helmkamp 2007-5-30 12208 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill 488 Comment
  JEPS71492  Phacelia humilis Gladys L. Smith 1972-6-18 3162 Placer in meadow across from Alpine Meadows Lodge 2072 Comment
  JEPS3234  Phacelia hydrophylloides L. S. Smith 1928-6-19 2370 Placer Ice Lakes Range Tahoe <National> Forest 2133 Comment
  JEPS1195  Phacelia marcescens M. E. Jones 1882-6-27 3294 Placer Emigrant Gap Comment
  UC881156  Phacelia marcescens Lewis S. Rose 1940-5-29 40410 Placer 3 mi ne Emigrant Gap 1676 Comment
  CAS-BOT-BC226910  Phacelia mutabilis George K. Helmkamp; E. A. Helmkamp 2011-7-26 17857 Placer Northern Sierra Nevada Mountains: Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 mi. NE (65 deg. ) of Emigrant Gap 1590 Comment
  CDA15650  Phacelia mutabilis G. F. Hrusa, J. Glazner 1999-7-18 15201 Placer Lake Tahoe; Wooded slopes betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. 1905 Comment
  JEPS3248  Phacelia mutabilis L. S. Smith 1928-6-9 2301 Placer Squaw Valley Tahoe <National> Forest 1828 Comment
  RSA0034432  Phacelia mutabilis Lincoln Constance 1946-7-2 3094 Placer Above Truckee River 1 mile southeast of Squaw Creek. 1829 Comment
  POM64823  Phacelia racemosa Katherine Brandegee 1908-7-15 s.n. Placer Cisco. Comment
  UCR240723  Phacelia racemosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19239 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 Comment
  CAS-BOT-BC259076  Phalaris lemmonii L. R. Abrams 1935-4-20 13685 Placer Roseville, Sacramento Valley Comment
  SACT001725  Phalaris paradoxa Josephine Van Ess 1978-6-27 Placer Collected north of big pond in open field about 1 mile east of east end of Annabelle Ave. Low wet area in open field. 103.0 Comment
  SBBG120612  Philadelphus lewisii G. K. Helmkamp with E. A. Helmkamp 2006-6-14 10705 Placer 0.2 mi N of Forest Hill Rd on unnamed rd to Lake Clementine (general area NE of Auburn on Forest Hill Divide) 488 Comment
  SBBG70497  Philadelphus lewisii M. N. Ackley -Jun-1925 1003 Placer Shirttail Cyn 762 Comment
  UC112846  Philadelphus lewisii Katharine Brandegee 1908-6-6 Placer N. Fork N. Fork <American River> (s side of Suspension Bridge, near Auburn) Comment
  UCD161472  Philadelphus lewisii Jean Dougherty 1986-5-31 86- 27 Placer On Mosquito Ridge Road, 2 miles from junction of Forresthill Road [sic]. Comment
  UCD19285  Philadelphus lewisii Renee Shahrok 1986-6-24 22 Placer 14 miles west of Big Tree Park turn-off, Mosquito Ridge Road. 731 Comment
  UCD89331  Phleum alpinum F. M. Reed and R. L. Pendleton 1907-7-25 1742 Placer Lake Tahoe Region, shores of Lily Lake, Glen Alpine. 2011 Comment
Read comments
Jun 21 2012
  SCFS1199  Phlox diffusa E. Krimmel 2014-4-21 Placer Point Mariah Comment
  UC23925  Phlox diffusa C. J. Fox Jr. Jul 1895 Placer near Squaw Peak Comment
  UC30191  Phlox gracilis H. N. Bolander 1865-1 4508 Placer near Auburn Comment
  UCD75738  Phoenicaulis cheiranthoides Ellen Dean, M. Starbuck,; K. Mawdsley, G. Harrington, M. Bibbo, J. Poloske 2008-7-20 5201 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, ridge between Southern Pacific RR tracks and railroad tunnel to the west of Lakeview Canyon, large turnabout/parking area with off-road vehicle use. 2207 Comment
  RSA3869  Phoradendron libocedri I. L. Wiggins 1930-10-12 5084 Placer Near Cisco. 1982 Comment
  CAS-BOT-BC58832  Phyllodoce breweri Elizabeth Parsons Hawver 1911-8-19 s.n. Placer Lake Tahoe - upper meadow, Madden Creek Meadows Comment
  JEPS7817  Physalis philadelphica Peter H. Raven 1954-8-27 7961 Placer Penryn; Sierra Nevada Comment
  CAS-BOT-BC60741  Physaria occidentalis C. F. Sonne 1886-7-18 23 Placer Sierra Nevada Mountains. Head of Squaw Valley on Truckee River. 2438 Comment
  UCR231865  Physocarpus capitatus George K. Helmkamp, E. A. Helmkamp 2010-10-16 17030 Placer Northern Sierra Nevada Mountains Foothills, along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine Reservoir dam 1180 Comment
  SD254674  Phytolacca americana George K. Helmkamp, Elizabeth Helmkamp 2012-10-30 20090 Placer Sacramento Valley: South Dowd Road, 0.1 mile south of its juncion with Moore Road, SW of Lincoln (Pleasant Grove 7.5'Q) 34 Comment
  RSA7667  Pinus attenuata C. B. Wolf 1933-9-24 5492 Placer 7 miles above Calfax on the Trukee road. W slope of Sierra Nevada. 884 Comment
  SEINET5334494  Pinus attenuata V. K. Johnson 1950-12-13 s.n. Placer Gold Run Comment
  UC1076347  Pinus contorta subsp. murrayana Herbert L. Mason 1929-10-4 5476 Placer Placerville road summit Johnson Pass Comment
  NY61591  Pinus jeffreyi N. H. Holmgren 1969-7-25 3754 Placer 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
  UCD23235  Pinus jeffreyi Beth Lowe Corbin 1982-8-25 420 Placer Onion Creek campground. 1841 Comment
  CAS-BOT-BC72886  Pinus ponderosa Saichi Kawahara 1969-5-25 1023 Placer Ridge east of old cabin, Mel Henderson Ranch, Indian Creek. 1036 Comment
  JEPS24552  Pinus ponderosa M. B. Pratt 1936-3-3 Placer e of Sacramento (on grounds of Weimer Sanitarium); Sierra Nevada, Weimar, Weimer Sanitarium Comment
  SEINET6167688  Piperia unalascensis M. J. Williams, B. Larson 1983-8-12 83- 135 -3 Placer West side of Sierra Nevada, near Jamison Creek, above Johnsville 1676 Comment
  UCR146680  Pistacia atlantica Beecher Crampton 1972-9-28 8879 Placer Sacramento Valley, Applegate 579 Comment
  SBBG28848  Plagiobothrys bracteatus C. L. Hitchcock 1940-5-7 6350 Placer ca. 1 mi W of Baxter Comment
  UC882301  Plagiobothrys bracteatus C. L. Hitchcock 1940-5-7 6350 Placer ca 1 mi w Baxter Comment
  RSA99003  Plagiobothrys bracteatus L. S. Rose 1953-5-19 8391 Placer 5 miles N of Roseville on road to Lincoln. 49 Comment
  JEPS126365  Plagiobothrys cognatus Steve Matson 1998-6-27 316 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; 200 yards south south east of junction of Highway 267 and Martis Creek. Comment
  CHSC67787  Plagiobothrys distantiflorus James D. Jokerst 1986-3-19 2600 Placer Johnson Ranch ca. 250 m N of Douglas Blvd. and E of access roads to residents to the north. Comment
  UCR198419  Plagiobothrys greenei George K. Helmkamp, E. A. Helmkamp 2008-4-17 13288 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  CDA15983  Plagiobothrys hispidulus G. F. Hrusa, J. Glazner 1999-7-17 15162 Placer Martis Valley; Martis Valley, off Hwy 267, S of Truckee. 1889 Comment
  JEPS126398  Plagiobothrys hispidulus Steve Matson 1998-6-27 312 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; 40 yards south of Highway 267. Comment
  UCD44451  Plagiobothrys hispidulus C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-7 1817 Placer Lake Tahoe Basin; Buck Lake. UTM's 10 742958E; 4326244N. 2340 Comment
  UC78171  Plagiobothrys hispidulus Alice Eastwood 1898-6-12 Placer Summit Soda Springs Comment
  CHSC114671  Plagiobothrys nothofulvus CDFA Staff 1998-4-22 Placer Dry Creek. Comment
  SD241781  Plagiobothrys nothofulvus George K. Helmkamp, E. A. Helmkamp 2012-3-31 18646 Placer Sacramento Valley: along CA-193, 0.1 mile west of its junction with Sierra College Blvd. Wide flat between highway and oaks. 88 Comment
  UCD73909  Plagiobothrys nothofulvus Rebecca Epanchin-Niell 2000-4-27 45 Placer SW of Auburn District Regional Park, N of Bell Road, Auburn, CA. Comment
  RSA666370  Plagiobothrys nothofulvus Barbara Ertter, David Thompson 1989-4-8 8151 Placer Iowa Creek Road 2 miles from I-80 near entrance to Auburn State recreation area at creek crossing 518 Comment
  SD43625  Plagiobothrys nothofulvus Darley F. Howe 1948-5-20 1839 Placer 456 Comment
  SD241121  Plantago coronopus George K. Helmkamp, E. A. Helmkamp 2012-3-31 18650 Placer Sacramento Valley: along CA-193, 0.1 mile west of tis junction with Sierra College Blvd. (Gold Hill 7.5'Q) 88 Comment
  UCR238583  Plantago coronopus George K. Helmkamp, E. A. Helmkamp 2012-3-31 18650 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCD21983  Plantago lanceolata Beth Lowe Corbin 1982-8-11 311 Placer 1 1/4 mile WNW of Onion Creek campground. In rocky, fine, sandy soil on old logging road. Clumped perennial. Bracts brown, anthers yellow. Mostly sun. West facing slope, 20% incline. Uncommon. 1981 Comment
  RSA388850  Plantago lanceolata Jon Schroeder 1975-5-24 66 Placer Spring Garden Road, just off of Auburn-Forest Hill Road. Comment
  CHSC81805  Plantago major Lowell Ahart 2001-10-10 9337 Placer French Meadows Reservoir, near the boat or trail access area on the northwest side of the reservoir, about 1 mile southwest of the bridge across the Middle Fork of the American River, about 2 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1594 Comment
  UCD44022  Platanthera dilatata var. leucostachys C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-8-1 1388 Placer Lake Tahoe Basin. Comment
  SD243048  Platanthera leucostachys George K. Helmkamp, E. A. Helmkamp 2010-8-14 16793 Placer Northern Sierra Nevada Mountains: American Hill Road (Forest Route 13), 4.7 mmiles south of its junction with Foresthill Road and just south of a creek crossing. 1552 Comment
  LA206293  Platystemon californicus Carl B. Wolf; 1937-3-30 8352 Placer Sacramento Valley, 1.5 mi. E of Lincoln on Penryn Road 60 Comment
  SEINET7236701  Pleuricospora fimbriolata M. J. Williams 1984-6-24 84- 62 -3 Placer Skillman Flat Campground, near Highway 20 1341 Comment
  UC1137074  Poa August L. Hormay 1933-5-24 Placer foothills w of Auburn Comment
  UCR235693  Poa George K. Helmkamp, E. A. Helmkamp 2012-5-5 18918 Placer Northern Sierra Nevada Mountains Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi. SE (123 deg. ) of Clementine Dam on the American River 396 Comment
  UCD36144  Poa annua Beecher Crampton 1953-2-11 971 Placer Placer County, 2 miles north of Lincoln, on road to Sunnybrook Farm Hereford Ranch. Comment
  CDA12420  Poa bolanderi G. F. Hrusa, A. Juncosa, J. Hunter 1991-7-15 8549 Ab Placer Lake Tahoe; N side of upper Ward Valley, 4 mi SW of Tahoe City. Comment
  CHSC68076  Poa bolanderi James D. Jokerst 1986-7-12 2689 Placer Trail from The Cedars, high Sierra Nevada NW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  SACT001802  Poa bolanderi James Grove 1977-7-15 Placer 2000.0 Comment
  UC1132588  Poa bolanderi N. French 1934-6-22 452 Placer 1/2 mi w Lake Dulzura; Truckee Quadrangle Comment
  UC820685  Poa bolanderi A. A. Heller 1917-6-17 12701 Placer below Cisco (along Yuba river) 1676 Comment
  UCD74217  Poa bolanderi Jennifer W. Burt; Sarah Shannon 2005-7-8 157 Placer PlaVada' abandoned ski area (off Hwy 80 at Kingvale exit) - collected from coniferous forest near abandoned ski runs. 1922 Comment
  UCD75944  Poa bolanderi Ellen Dean, M. Starbuck,; G. Harrington, J. Buck, M. Bibbo, T. Sasaki, J. Poloske 2008-7-19 5184 Placer Donner State Park, newly acquired lands to the SW of Donner Lake, along Emigrant Trail on the N side of the north fork of Cold Creek. South side of trail by creek. 2145 Comment
  UCR208266  Poa bulbosa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14647 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill 476 Comment
  POM112614  Poa compressa Marcus E. Jones 1882-7-3 s.n. Placer Alta Comment
  SACT001834  Poa compressa D. Meyer 1984-9-9 Placer East fork of the North Fork of the North Fork of the American River. 1394.0 Comment
  SACT001849  Poa gracillima Michael Baad 1983-8-11 Placer On trail from Creek to Mildred Ridge. 2133.0 Comment
  SACT001846  Poa gracillima Michael Baad 1983-8-21 Placer Collected on trail. 2072.0 Comment
  SACT001858  Poa incurva D. Meyer 1983-8-20 Placer Collected from road to summit at first lake steep rocky trail with some moist meadow areas. 2000.0 Comment
  SACT001864  Poa incurva 1976-7-17 Placer Collected on trail 1.6 km west of Alpine Meadows, open brushy slopes on granite. 2133.0 Comment
  SACT001873  Poa nervosa Michael Baad 1976-7-21 Placer Southwestern face of Lyon Peak descending to spring emptying into the Middle Fork of the American River. 16 km southeast of Soda Springs. 2377.0 Comment
  SACT001877  Poa nervosa Michael Baad 1976-7-17 Placer 3.2 km west of Alpine Meadows Ski Area, opening in red fir and lodgepole pine forest. 2133.0 Comment
  CAS-BOT-BC247258  Poa palustris Beecher Crampton 1956-7-17 3727 Placer 3/4 mile west of Blue Canyon 1432 Comment
  SACT001891  Poa palustris D. Meyer 1984-7-21 Placer 5.1 km north of Tahoe City 1879.0 Comment
  SACT001895  Poa palustris D. Meyer 1984-8-26 Placer 1818.0 Comment
  CAS-BOT-BC247375  Poa pratensis Saichi Kawahara 1969-7-6 1416 Placer West of old cabin, Mel Henderson Ranch, Indian Creek 999 Comment
  SACT001906  Poa pratensis Michael Baad 1983-7-10 Placer 6.1 miles by road south of Emigrant Gap townsite, open west meadow 1524.0 Comment
  SACT001931  Poa pratensis D. Meyer 1983-10-22 Placer Searchlight ski run, from base up to Olympic Lady charilift 2121.0 Comment
  SACT001942  Poa pratensis D. Meyer 1984-6-17 Placer Southeast of Weimar. 666.0 Comment
  UCD44658  Poa pratensis C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 2024 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  SACT001983  Poa scabrella Michael Baad 1983-5-5 Placer .5 mile southeast of Canyon Way Road, descending to North Fork of American River 548.64 Comment
  SACT002010  Poa secunda James Grove 1977-7-15 Placer 2000.0 Comment
  UCD44689  Poa secunda subsp. juncifolia C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 2055 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  JEPS75185  Poa secunda subsp. secunda Gladys L. Smith 1972-6-20 3243 -A Placer summit ridge Ward Peak 2621 Comment
  UC1132786  Poa secunda subsp. secunda G. T. Nordstrom 1934-6-21 128 Placer 0.4 mi w by nw Mammoth Springs (near Plot 208); Tahoe Nat'l Forest, Colfax Quadrangle Comment
  UC711004  Poa secunda subsp. secunda C. L. Hitchcock 1940-5-7 6341 Placer ca 1 mi w Baxter Comment
  UC821094  Poa secunda subsp. secunda A. A. Heller 1917-8-13 12917 Placer ridge nw of Donner Pass 2377 Comment
  UCD91625  Poa secunda subsp. secunda A. A. Heller 1917-8-13 12917 Placer Ridge northwest of Donner Pass. 2377 Comment
  UCD91645  Poa secunda subsp. secunda John Thomas Howell 1943-7-21 18638 Placer Donner Pass to Mt. Lincoln. Comment
  CHSC112174  Poa sierrae Dean Wm. Taylor 2013-6-19 21370 Placer Ralston Ridge (ca 25 air miles E of Foresthill), along Forest Road 14N22C about 1.1 mile down frfom (North of) Forest Road 25 along the ridgecrest. 1482 Comment
  RSA0049711  Poa sierrae Dean Wm. Taylor 2013-6-19 21370 Placer Ralston Ridge (ca. 15 air miles E of Foresthill), along Forest Road 14N22C about 1.1 mile down from (North of) Forest Road 25 along the ridgecrest 1482 Comment
  UCD74356  Poa sierrae G. Ledyard Stebbins 1968-4-7 6671 Placer Mosquito Ridge, east of Forest Hill. Along road, 2.7 miles northeast of turnoff to P.G. and E. dam and powerhouse. (Exact location unknown. Coordinates estimated by label maker. Note book says 'same location as 6669.' This location and elevation was taken from Stebbins's notebook, however, he also made a label with different label information for 6669 that says: North Side of Mosquito Ridge, north of the Middle Fork of the American River. T14N, R12E, Section 30, elevation 3200 ft. The date on this label is 1 May 1968.) 853 Comment
  UCD36427  Podagrostis humilis Beecher Crampton 1953-7-21 1538 Placer Placer County, 1 mile south of Soda Springs, on Harrison Flat Road. 2133 Comment
  CDA36886  Pogogyne serpylloides CDFA Staff 1995-5-12 s.n. Placer Dry Creek. 0 Comment
  RSA0024682  Pogogyne zizyphoroides L. S. Rose, W. A. Weber 1953-5-19 8392 Placer 5 miles N of Roseville on road to Lincoln. 49 Comment
  POM129412  Polemonium occidentale R. L. Pendleton, F. M. Reed 1907-7-28 1305 Placer Tahoe Tavern 1899 Comment
  RSA35130  Polemonium occidentale L. S. Rose 1944-7-25 44264 Placer Chambers lodge, Lake Tahoe. 1921 Comment
  JEPS69879  Polemonium occidentale Alice M. Ottley 1920-7-14 1207 Placer near fish hatchery that is near Cascade Lake Cascade Lake (Lake Tahoe); , near Cascade Lake Comment
  CDA16046  Polemonium pulcherrimum G. F. Hrusa, J. Glazner 2000-9-3 15666 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of Crow's Nest ski run. 2164 Comment
  CAS-BOT-BC170306  Polygala cornuta var. cornuta W. R. Dudley 1909-8-1 s.n. Placer Monte Vista, Dutch Flat Comment
  JEPS43023  Polygala cornuta var. cornuta L. S. Smith 1925-8-13 1705 Placer Gold Dollar Mine trail to Pine Nut (e slope); Tahoe National Forest 1828 Comment
  UC850344  Polygonum aviculare subsp. aviculare A. A. Heller 1917-8-12 12876 Placer w Emigrant Gap; Southern Pacific reservoir Comment
  CAS-BOT-BC413936  Polygonum aviculare subsp. aviculare John Thomas Howell 1943-7-25 18820 Placer West side of Donner Pass near Norden 2133 Comment
  POM104622  Polygonum bistortoides Marcus E. Jones 1903-6-28 s.n. Placer Emigrant Gap Comment
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Sep 7 2010
  UCD43949  Polygonum bistortoides C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-9 1315 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  CAS-BOT-BC414391  Polygonum californicum L. R. Abrams 1917-9-14 6754 Placer Between Roseville and Penryn Comment
  JEPS72808  Polygonum davisiae Gladys L. Smith 1972-6-20 3233 Placer exposed ridge from chairlift terminus to ultimate summit peak; Ward Peak 2632 Comment
  UCD42845  Polygonum douglasii C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-23 211 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  UCD43238  Polygonum douglasii C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-13 607 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  UCR177011  Polygonum douglasii George K. Helmkamp, E. A. Helmkamp 2005-9-30 9963 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  CAS-BOT-BC418582  Polygonum minimum Alice Eastwood 1909-1-1 236 Placer Lake Tahoe Region. Squaw Creek Comment
  CAS-BOT-BC418583  Polygonum minimum A. A. Heller 1919-7-25 13290 Placer Near the Yuba River below Cisco 1676 Comment
  UCD42926  Polygonum minimum C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-24 294 Placer Lake Tahoe Basin; Barker Pass. UTM's 10 738571E, 4329743N. 2316 Comment
  UCR253538  Polygonum persicaria George K. Helmkamp, Elizabeth Helmkamp 2012-10-30 20088 Placer Sacramento Valley, South Dowd Road, 0.1 mile south of its junction with Moore Road, southwest of Lincoln 34 Comment
  UCR253808  Polygonum persicaria George K. Helmkamp, Elizabeth Helmkamp 2012-10-30 20107 Placer Sacramento Valley, north of William Lane on an unnamed levee road to Markham Ravine 35 Comment
  UC147627  Polygonum phytolaccifolium Harriet A. Walker 1908-6-24 1258 Placer Blue Canyon Comment
  SD102787  Polygonum phytolaccifolium Darley F. Howe 1978-7-15 Placer Along state highway 20, 27 miles west of Truckee 1584 Comment
  UC702888  Polygonum polygaloides subsp. kelloggii Lewis S. Rose 1941-7-18 41324 Placer Chambers Lodge (McKinney) Lake Tahoe 1920 Comment
  UC1136153  Polygonum shastense N. French 1934-6-22 470 Placer 1/2 mi w Lake Van Norden; Tahoe N.F., Truckee Quadrangle Comment
  CAS-BOT-BC232990  Polypogon australis A. A. Beetle 1941-5-26 2724 Placer Near Auburn, bank of branch Rubicon River Comment
  UCR249614  Polypogon interruptus George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20842 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 0.1 mile northwest of its junction with Spring Garden Road 738 Comment
  SEINET10827620  Polypogon interruptus Alan A. Beetle 1941-5-26 Beetle 2724 Placer Near Auburn, bank of branch Rubicon River. Comment
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Feb 28 2019
  CAS-BOT-BC233246  Polypogon maritimus J. T. Howell; Gordon H. True 1971-5-26 47615 Placer N limits of Lincoln 48 Comment
  SACT002021  Polypogon maritimus Josephine Van Ess 1976-7-8 Placer Collected .25 mile north of Roseville waterworks. Moist ditch. Comment
  JEPS33239  Polystichum imbricans subsp. curtum Matt Herbrand 1917-12-20 Placer 1524 Comment
  SEINET5729444 Image available Populus fremontii Lynn Gould 1962-1 36 Placer On P.R.E. road ca. 6 miles west from Roseville.; Roseville Comment
  CAS-BOT-BC102699  Populus tremuloides C. B. Wolf 1931-9-10 2420 Placer near R.R. between Tahoe Tavern and head of Truckee River (gates) 1920 Comment
  UCD38930  Populus tremuloides Beecher Crampton 1961-9-27 6002 Placer 1 mile west of Cisco Grove, along US Hwy 40, Yuba River Basin. Comment
  CAS-BOT-BC105577  Populus trichocarpa C. B. Wolf 1931-9-10 1295 Placer Shore of Lake Tahoe, Just N.W. of Chambers Lodge 1920 Comment
  SCFS11529130  Populus trichocarpa E. Krimmel 2012-8-28 Placer NFAm below Chickering bridge. Comment
  UC527363  Populus trichocarpa C. B. Wolf 1931-9-11 2422 Placer near creek 7 mi below summit Donner Pass (w slope of Sierra Nevada); , below summit Donner Pass 1828 Comment
  UCD110728  Populus trichocarpa G. L. Stebbins Jr. 1942-9-1 3340 Placer Bank of Yuba River, on U.S. Highway 40, 1 1/2 miles west of Cisco. 1706 Comment
  POM296430  Potamogeton gramineus Lyman Benson 1932-7-31 4013 Placer Donner Lake. Sierra Nevada mtn range, Truckee River watershed. 1890 Comment
  UC370  Potamogeton natans A. M. Carpenter 1893-8 Placer Comment
  POM36827  Potentilla flabellifolia C. F. Sonne 1897-7-18 s.n. Placer Near Tinkers Knob 2439 Comment
  JEPS44441  Potentilla flabellifolia C. F. Sonne 1888-7-29 78 Placer head of Bear Creek on Truckee River Sierra Nevada Mountains, Truckee River, head of Bear Creek Comment
  CHSC79564  Potentilla glandulosa subsp. reflexa G. F. Hrusa; J. Glazner 1999-7-18 15220 Placer Northern California. The Lake Tahoe Region. Betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. Above Squaw Creek just above Hwy 89 bridge. 1889 Comment
  CAS-BOT-BC158436  Potentilla glaucophylla var. glaucophylla L. S. Smith 1925-6-27 1659 Placer Tahoe National Forest. Tahoe Camp Ground & Ward Cr. 1905 Comment
  CHSC73990  Potentilla gracilis var. fastigiata Susi Urie 1998-8-11 98 -015 Placer Lake Tahoe Basin. About 0.5 mi north of Ward Creek, along a tributary; about 2 mi west of Lake Tahoe and Sunnyside. Meadow stringer. 2097 Comment
  SEINET6637149  Potentilla gracilis var. fastigiata P. B. Kennedy, Samuel Bradford Doten 1901-8-18 410 Placer Talbots Home Camp, 7 mi from French Meadows Comment
  JEPS72484  Primula suffrutescens Gladys L. Smith 1972-8-25 3426 Placer n face Granite Chief; n face of Granite Chief 2621 Comment
  UC1039796  Proboscidea lutea L. S. Smith 1928-10-15 Placer Auburn Comment
  RSA0093562  Prunella vulgaris var. lanceolata George K. Helmkamp, Elizabeth Helmkamp 2013-10-14 22418 Placer Sierra Nevada Mountains Foothills. Yankee Jim Road, 3.6 miles northwest of its junction with Foresthill Road. 651 Comment
  UCR231866  Prunella vulgaris var. lanceolata George K. Helmkamp, E. A. Helmkamp 2010-10-16 17029 Placer Northern Sierra Nevada Mountains Foothills, along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine Reservoir dam 1180 Comment
  UCR249992  Prunella vulgaris var. lanceolata George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20807 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road 768 Comment
  CAS-BOT-BC163052  Prunus emarginata L. R. Abrams 1917-9-16 6763 Placer Emigrant Gap Comment
  CAS-BOT-BC163053  Prunus emarginata Carl B. Wolf 1930-10-11 988 Placer 4 miles west of Emigrant Gap 1524 Comment
  CAS-BOT-BC32677  Prunus emarginata Marcus Eugene Jones 1882-6-28 2693 Placer Emigrant Gap Comment
  HSC35044  Prunus emarginata Thomas W. Nelson, James Nelson 1974-6-17 1364 Placer Beside Hwy. 80 at its intersection with Blue Canyon Rd., 9 mi. W of the Placer-Nevada County line 1646 Comment
  UC1128350  Prunus emarginata C. R. Clar 1933-5-11 116 Placer 3 mi e of Weimer 609 Comment
  UC50080  Pseudobahia heermannii H. N. Bolander 1865-4-10 4518 Placer hillside near Auburn Comment
  CAS-BOT-BC357340  Pseudognaphalium microcephalum W. R. Dudley 1909-8-16 s.n. Placer Monte Vista Comment
  JEPS14031  Pseudognaphalium thermale Rimo Bacigalupi with G. L. Stebbins, D. Zohary, J. Hunziker, F. Ehrendorfer, A. Hawkes, H. Stutz 1952-7-19 3852 Placer below Cape Horn sta. on S.P RR (0.5 mi above bridge on Colfax-Iowa Hill road); North Fork of American River 381 Comment
  SEINET5334811  Pseudotsuga menziesii var. menziesii P. L. Comanor, B. Clark; B. O'Malia 1969-5-1 s.n. Placer Colfax area, 1.85 mi. from end of railroad bridge on CA 194. Winding rd., plot located on the right,past parking area,down path about 60 meters. 1676 Comment
  JEPS126404  Psilocarphus brevissimus var. brevissimus Steve Matson 2002-5-26 527 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; 200 yards north of Highway 267; 200 yards west of Martis Creek vernal pool. Comment
  CAS-BOT-BC361844  Psilocarphus oregonus John Thomas Howell; Gordon H. True 1971-5-26 47635 Placer Northern limits of Lincoln 48 Comment
  UCR231829  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2010-8-14 16769 Placer Northern Sierra Nevada Mountains, Deadwood Road, 1.2 miles south of its junction wih Forest Hill Road 1564 Comment
  JEPS59377  Pterospora andromedea Ezra Brainerd and Viola B. Baird 1915-7-28 125 Placer Bear Rock along trail of the Truckee River 1920 Comment
  SEINET12528641 Image available Pterospora andromedea A. P. Kelley 1925-1 s.n. Placer Tahoe Tavern. Comment
  UCD22283  Purshia tridentata Rex Palmer 1979-6-9 N 142 Placer Headwaters basin area of the North Fork of the American River. 2255 Comment
  CAS-BOT-BC466090  Pyrola picta Margaret Williams 1974-8-8 74 -P1-21 Placer Sierra Nevada. Murphy's Meadow, 5 miles SE of Hirschdale 2316 Comment
  RSA0083320  Pyrola picta Marcus E. Jones 1882-7-1 s.n. Placer Emigrant Gap. Comment
  SD6061  Pyrus occidentalis none given June 1914 Placer Cisco Comment
  CAS-BOT-BC62474  Quercus chrysolepis Emily McPherson 1976-9-19 76- 28 -6 Placer 1 mile seast of Talbot Campground. Middle Fork of the American 1767 Comment
  CAS-BOT-BC62475  Quercus chrysolepis Miss. A. Eastwood 1894-9-1 s.n. Placer Newcastle Comment
  JEPS38082  Quercus chrysolepis H. L. Mason Placer Colfax Comment
  UCD45762  Quercus chrysolepis Beecher Crampton 1955-6-15 2909 Placer Yankee Jim, Placer County. Comment
  SACT002613  Quercus chrysolepis var. nana Josephine Van Ess 1977-11-4 Placer Collected up first ravine to south below Highway 49. Dry west-facing slope. 365.8 Comment
  SACT002126  Quercus douglasii Josephine Van Ess 1978-9-8 Placer collected near top of ridge; dry hillside; small tree, atypical leaves with spring lobes, typical rough gray bark 176.8 Comment
  UCD15168  Quercus douglasii Phyllis Adams 1982-5-9 37 Placer California, Placer Co.; along Old Foresthill Road, in the American River Canyon; 457 Comment
  CAS-BOT-BC105307  Quercus kelloggii Catherine A. Toschi 1963-3-23 63 .80 Placer 3 miles E of Auburn on the American River 396 Comment
  RSA758204  Quercus kelloggii Doug Goldman 2004-12-24 3008 Placer Tahoe National Forest. East side of Mosquito Ridge Road (Forest Road 96), 0.6 miles southwest of the bridge over the North Fork of the Middle Fork of the American River., About 10.1 miles east of the intersection of Road 96 and Forest Hill Road in Forest Hill. 473 Comment
  SACT002133  Quercus kelloggii Michael Baad 1977-4-13 Placer 0.2 miles north of Interstate 80; ecotone between pine forest and chaparral 502.92 Comment
  SACT002137  Quercus kelloggii Michael Baad 1983-4-9 Placer 0.6-1.5 miles from junction with Auburn-Forest Hill Road; south-facing wooded slope 304.8 Comment
  UC1140073  Quercus kelloggii Marcus E. Jones, A. M. 1882-6-30 2871 Placer Emigrant Gap Comment
  SEINET10431665  Quercus kelloggii P. L. Comanor, B. Clark, B. O'Malia 1969-5-1 s.n. Placer Colfax area, 1.85 miles from end of railroad bridge on CA Hwy 194, winding road, plot located on the right past parking area, down path ca 60 meters. 1676 Comment
  OBI14213  Quercus vacciniifolia Robert F. Hoover 1967-9-5 10822 Placer Carnelian Bay, Lake Tahoe Comment
  SACT002711  Quercus vacciniifolia James Grove 1977-7-15 Placer 2000.0 Comment
  SD6105  Quercus vacciniifolia Unknown 1914-6-1 Placer Cisco Comment
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Jul 11 2010
  UCD47482  Quercus vacciniifolia G. T. Nordstrom 1934-6-18 104 Placer 1/4 mile southeast top of Texas Hill. 1615 Comment
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Aug 12 2008
  RSA0127039  Quercus wislizeni Tom Scott, Gary Nakamura 2009-02 2009 -015 Placer Sierra Nevada Mtns. Foothills: Auburn, Hwy 49 at Auburn Bridge on American River, slopes on north side of canyon above highway. 198 Comment
  UCD22193  Ranunculus alismifolius Rex Palmer 1979-6-2 N 367 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC379379  Ranunculus alismifolius var. hartwegii W. R. Dudley 1893-6-7 s.n. Placer near Donner Lake Comment
  CAS-BOT-BC379442  Ranunculus alismifolius var. hartwegii Gordon H. True 1972-4-4 7094 Placer Boca-Stampede Dam Road, 5.2 mi north of Boca 1768 Comment
  CAS-BOT-BC379443  Ranunculus alismifolius var. hartwegii Peter H. Raven 1950-6-27 2426 Placer at S base of Boreal Ridge 2164 Comment
  JEPS127535  Ranunculus alismifolius var. lemmonii Steve Matson 1998-5-3 195 Placer nSNH: Martis Valley, about 4 miles SE of Truckee. Martis Creek Wildlife Area, north of Hwy 267, east of Martis Creek, logging road bridge. Comment
  CHSC73984  Ranunculus aquatilis var. capillaceus Susi Urie 1998-8-19 98 -082 Placer Lake Tahoe Basin--National Forest. About 0.2 mi north of Lake Tahoe; large meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  UCR233039  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-12 17253 Placer Southern Sacramento Valley, south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave. 41 Comment
  RSA0042967  Ranunculus californicus George K. Helmkamp, Mary Alice Barnes 2013-4-18 20352 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  JEPS30051  Ranunculus flammula E. R. Blakley 1960-9-3 3814 Placer Kings beach Lake Tahoe (exposed lake bottom) 1903 Comment
  UCR49689  Ranunculus hystriculus Katherine Brandegee 1909-4-28 92 Placer Near Auburn, in the Sierra Nevada fothills 320 Comment
  SDSU10115  Ranunculus muricatus D. F. Howe 1948-5-21 1909 Placer 457 Comment
  SEINET5338811  Ranunculus occidentalis J. Elder 1961-3-18 s.n. Placer In foothills woodland 5 miles southeast of Auburn above the American River. 366 Comment
  UC827922  Ranunculus orthorhynchus var. orthorhynchus Alice Eastwood Jun 15 1912-Jun 19 1912 446 Placer Tahoe City Lake Tahoe Region Comment
  UC854403  Ranunculus uncinatus Marcus E. Jones, A. M. 1882-6-28 3308 Placer Emigrant Gap Comment
  CHSC96467  Raphanus raphanistrum Lowell Ahart; Brian Williams 2007-4-13 13640 Placer Open pasture fields, about 1/2 mile south of the Manzanita Cemetery, about 1/2 mile west of Gladding Road, about 2 3/4 miles north of Lincoln. 43 Comment
  CHSC81475  Raphanus sativus D. Tellefson 2000-4-23 Placer Shockley Woods, Shockley Rd, Auburn. 400 Comment
  CAS-BOT-BC59528  Rhamnus alnifolia Carl B. Wolf 1937-9-4 9287 Placer Sierra Nevada, NW. of Lake Tahoe, 1 mi. below (E. of) Deer Park 1981 Comment
  CDA13672  Rhamnus alnifolia G. F. Hrusa, J. Glazner 1997-8-3 14032 Placer Sierra Nevada; Corner of Hwy 89 & Squaw Valley Rd. Comment
  SEINET13946287 Image available Rhamnus californica W. A. Weber, Lewis S. Rose 1953-1 8400 Placer 4 mi N of Auburn, 1600 ft alt. 488 Comment
  UCR218447  Rhamnus californica subsp. tomentella George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16422 Placer Sierra Nevada Mountains Foothills, Yankee Jims Road, 3.2 miles southeast of its junction with Canyon Way, 4.4 air mi. SE (156 deg. ) of Colfax 412 Comment
  UCD36677  Rhamnus crocea var. ilicifolia Beecher Crampton 1955-6-15 2871 Placer Placer County, Head of Bunch Canyon, 0.5 mile south of U.S. Highway 40. Comment
  CAS-BOT-BC55968  Rhamnus ilicifolia C. L. Hitchcock 1940-5-14 6371 Placer Meier Ranch, ca. 6 miles north of Colfax 762 Comment
  UC592689  Rhamnus rubra unknown 1928-8-22 3433 Placer 1 mi w Emigrant Gap 1636 Comment
  RSA30396  Rhamnus rubra subsp. obtusissima A. A. Heller 1917-6-19 12736 Placer Dry gravelly ridge, Emigrant Gap. 1616 Comment
  UC870861  Rhamnus tomentella subsp. tomentella A. A. Heller 1917-6-16 12680 Placer near Dutch Flat 914 Comment
  CAS-BOT-BC109794  Rhodiola integrifolia subsp. integrifolia John Thomas Howell 1943-7-26 18854 A Placer Sugar Bowl northwest of Mount Lincoln. Comment
  UCD150478  Rhodiola integrifolia subsp. integrifolia James A. Neilson Jr. 1971-8-31 2588 Placer Tahoe Basin, south fork of Blackwood Creek. 2438 Comment
  CAS-BOT-BC438106  Ribes Kellogg; Brannan June 8 s.n. Placer Cisco Comment
  CAS-BOT-BC438108  Ribes Baki Kasapligil 1974-10-6 4908 Placer N. Calif., Placer Co., Soda Springs Sugar Bowl 2377 Comment
  CAS-BOT-BC108701  Ribes cereum C. F. Sonne 1884-6-7 107 Placer Sierra Nevada Mountains. Truckee. Comment
  CAS-BOT-BC108705  Ribes cereum Geo. B. Grant 1906-7-15 6978 Placer Tahoe Tavern Lake Tahoe. 1889 Comment
  UCD102139  Ribes cereum Christine Patino 1976-5-31 29 Placer 1 mile northeast of Tahoe City near Highway 28 on Lake Forest Road. Comment
  CAS-BOT-BC169085  Ribes inerme var. inerme A. A. Heller 1917-6-17 12718 Placer Low, grassy places along the Yuba River below Cisco 1676 Comment
  CAS-BOT-BC169091  Ribes inerme var. inerme Alice Eastwood 1912-6-15 428 Placer Deer Park, Lake Tahoe Basin Comment
  JEPS127485  Ribes inerme var. inerme Steve Matson 1998-6-14 240 Placer nSNH: Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area, 20 meters north of Highway 267, 20 meters west of Martis Creek. Comment
  RSA0022085  Ribes montigenum Walter Wisura, T. Hayduk, Q. Junzhuan 1991-8-22 4540 Placer Squaw Valley, beyond upper cable car station. Comment
  CAS-BOT-BC219206  Ribes nevadense Peter H. Raven 1956-8-4 9993 Placer 1.0 miles from Blue Canyon on road to Emigrant Gap Comment
  JEPS127481  Ribes nevadense Steve Matson 1998-8-21 384 Placer nSNH: Tahoe north shore; Snow Creek watershed, Tahoe Vista/Kings Beach; west fork Snow Creek; bog at western terminus of Tiger Ave dirt extension. Comment
  UCD74135  Ribes nevadense Jennifer W. Burt 2005-7-12 67 Placer Powder Bowl' abandoned ski area (South of Alpine Meadow Road off Hwy 89 near Alpine Meadows) - collected from center of an abandoned ski run. 1957 Comment
  UCD22339  Ribes roezlii Beth Lowe Corbin 1982-8-2 151 Placer Onion Creek campground. In fine, sandy, granitic soil. Spiney shrub about 1.5' high with dark grey bark. Berries picked green. Partial sun. South facing slope. Uncommon. 1841 Comment
  UCD23385  Ribes roezlii K. A. Bear 1978-5-13 56 Placer Flowers white to pale pink with dark red sepals, leaves dark green above, lighter underneath. Shrub 2-3 ft tall. Rocky soil, yellow pine forest. Mosquito Ridge Rd 20.6 miles east of Forest Hill Rd. 1066 Comment
  CAS-BOT-BC186199  Ribes roezlii var. roezlii Julia McDonald 1914-6-1 s.n. Placer Homewood, Lake Tahoe Region Comment
  CAS-BOT-BC186204  Ribes roezlii var. roezlii Geo. B. Grant 1906-7-15 s.n. Placer About Lake Tahoe 2438 Comment
  CAS-BOT-BC173854  Ribes velutinum J. F. Emmel 1970-7-18 321 Placer Slope, 0.6 air mile s. of south end of Lake Mary, s. of Donner Pass 2286 Comment
  CAS-BOT-BC168770  Ribes viscosissimum L. S. Smith 1925-9-16 1735 Placer Blackwood Canyon Sec. 4 along road 1981 Comment
  UCD22346  Ribes viscosissimum Rex Palmer 1979-6-21 N 413 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD115292  Rorippa curvisiliqua Peter H. Raven 1949-6-28 1227 Placer Summit Valley. 2133 Comment
  CAS-BOT-BC74624  Rorippa curvisiliqua Gladys L. Smith 1977-6-16 4670 Placer Goose Meadow, Route 89, between Tahoe City and Truckee. 1828 Comment
  JEPS102729  Rorippa curvisiliqua var. orientalis Lowell Ahart 2001-10-10 9365 Placer French Meadows Reservoir, near the boat or trail access area on the NW side of the reservoir, about 1 mile SW of the bridge across the Middle Fork of the American River, about 2 miles SW of Ahart Camp, about 22 miles (air) NE of Forest Hill. 1594 Comment
  CAS-BOT-BC74867  Rorippa subumbellata Geo. B. Grant 1906-7-20 s.n. Placer Sierra Nevada Mountains. Lake Tahoe. 2438 Comment
  CAS-BOT-BC147021  Rosa woodsii subsp. ultramontana C. B. Wolf 1931-9-10 2421 Placer Near R.R. between Tahoe Tavern and head of Truckee River (gates) 1920 Comment
  CAS-BOT-BC133118  Rosaceae Saichi Kawahara 1969-7-6 1428 Placer On hill with old cabin, Henderson Ranch, east bank of Indian Creek 999 Comment
  SEINET7705258  Rubus bifrons W. Priest 1956-4-16 s.n. Placer U.S. Hwy. 40, just W of Bbaxter. 1067 Comment
  POM366398  Rubus discolor Wm. Martin 1971-9-10 20214 Placer 1 mile east of Weimar on Hwy 80 610 Comment
  CAS-BOT-BC147110  Rubus glaucifolius G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12053 Placer Northern Sierra Nevada Mountains Foothills: along Forest Hill Road, 2.3 miles northeast of Foresthill 1116 Comment
  UCR191088  Rubus glaucifolius George K. Helmkamp, E. A. Helmkamp 2007-6-12 12321 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  RSA463212  Rubus parviflorus J. H. Nishida 1985-7-10 788 Placer Homewood. 1829 Comment
  UC14186  Rubus parviflorus W. A. Setchell, C. C. Dobie Jul 6 1901-Jul 21 1901 Placer Cascade Mts. vicinity of Lake Tahoe, Cascade Mts. 1897 Comment
  SEINET11910807  Rubus parviflorus J. H. Nishida 1985-1 788 Placer Homewood 1829 Comment
  CAS-BOT-BC363141  Rudbeckia californica G. P. Rixford 1916-7-1 s.n. Placer Cisco Comment
  CAS-BOT-BC363205  Rudbeckia occidentalis Vincent Jones 1919-7-7 s.n. Placer Ridge above Bear Valley Comment
  UCD100984  Rumex acetosella Amelie Blyth 1952-5-11 9- 2 Placer At junction of north fork and middle fork of American River, near Auburn. Comment
  CAS-BOT-BC422032  Rumex acetosella John Thomas Howell; Gordon H. True 1972-3-17 7084 Placer Northern outskirts of Lincoln 48 Comment
  CAS-BOT-BC422033  Rumex acetosella Geo. B. Grant 1906-7-15 6969 Placer Tahoe Tavern, Lake Tahoe Comment
  CDA32823  Rumex acetosella William J. Ferlatte 1977-3-21 s. n. Placer Rocklin: Corner of China Garden Rd. & Rustic Hills Dr., next to Hwy 80 0 Comment
  UCD43380  Sagina apetala C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-12 748 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  UCD22305  Salix Beth Lowe Corbin 1982-8-24 415 Placer 2 1/2 miles SE of The Cedars. In wet, fine sandy, rocky soil, along stream in Red Fir forest. Loosely branched shrub to 5' high. Old bark smooth, grey. Partial sun. NE facing slope, 20% incline. Common. 2118 Comment
  CAS-BOT-BC103556  Salix eastwoodiae W. R. Dudley 1900-6-14 5055 Placer About middle of loop between Donner Lake and Summit Comment
  CAS-BOT-BC103558  Salix eastwoodiae W. R. Dudley 1900-6-14 5070 Placer Between Donner Lake and Summit Comment
  CAS-BOT-BC103606  Salix eastwoodiae W. R. Dudley 1900-6-14 5114 a Placer northwest of Lake Mary Comment
  CAS-BOT-BC103608  Salix eastwoodiae W. R. Dudley 1900-6-15 5124 Placer on flat northeast of Lake Mary Comment
  CAS-BOT-BC103611  Salix eastwoodiae W. R. Dudley 1900-6-14 5119 Placer In valley northwest of Lake Mary Comment
  CAS-BOT-BC103615  Salix eastwoodiae W. R. Dudley 1900-6-14 5048 Placer Below the upper dam at Donner Lake Comment
  RSA122642  Salix eastwoodiae B. Bolt 1934-8-22 187 Placer Head of Picayune Creek. 2287 Comment
  SEINET12612920 Image available Salix eastwoodiae W. R. Dudley 1900-1 5048 /1238 Placer Below upper dam at Douner Lake. Comment
  CAS-BOT-BC103989  Salix geyeriana W. R. Dudley 1900-6-1 5287 Placer Vicinity of Independence Lake Comment
  CAS-BOT-BC106876  Salix jepsonii W. R. Dudley 1900-6-14 5057 Placer Road from Donner Lake to Summit Comment
  CAS-BOT-BC106882  Salix jepsonii W. R. Dudley 1900-6-14 5063 Placer between Donner Lake and Summit Comment
  CAS-BOT-BC106883  Salix jepsonii W. R. Dudley 1900-6-14 5061 Placer Between Donner Lake and Summit Comment
  CDA16980  Salix laevigata G. F. Hrusa, M. I. Wibawa, J. Glazner 2002-5-22 16033 Placer Sierra Nevada; Hughes Mill (site) above Foresthill. 1066 Comment
  CDA39562  Salix laevigata H. H. Keifer 1956-7-14 s.n. Placer Rocklin. 0 Comment
  UC5021  Salix laevigata var. congesta unknown 1861-1 4632 Placer New Castle Comment
  CAS-BOT-BC125294  Salix lasiandra var. lasiandra W. R. Dudley 1900-6-29 5804 Placer Truckee River, below Tahoe City Comment
  CHSC13806  Salix lasiolepis E. L. Smith 1971-7-27 1014 Placer W end of Putt Reservoir just e of Blue Canyon Road ca. 2 mi w of Emigrant Gap. 1706 Comment
  UCD111643  Salix lasiolepis Michael Persichetty 2007-6-6 2 B Placer Alta. North side of Spaulding Point. 1219 Comment
  CAS-BOT-BC128472  Salix lasiolepis var. lasiolepis W. R. Dudley 1909-8-16 s.n. Placer Monte Vista, Dutch Flat Comment
  CAS-BOT-BC128473  Salix lasiolepis var. lasiolepis W. R. Dudley 1909-8-16 s.n. Placer Monte Vista, Dutch Flat Comment
  CAS-BOT-BC124747  Salix lemmonii W. R. Dudley 1900-6-1 5283 Placer west of Independence Hotel Comment
  CAS-BOT-BC124751  Salix lemmonii A. A. Heller 1917-6-19 12735 Placer Emigrant Gap 1615 Comment
  CAS-BOT-BC124757  Salix lemmonii W. R. Dudley 1900-6-14 5096 Placer East of hotel at Summit Comment
  CAS-BOT-BC124764  Salix lemmonii W. R. Dudley 1900-6-29 5796 Placer near Tahoe City Comment
  CAS-BOT-BC124772  Salix lemmonii W. R. Dudley 1900-6-14 5067 Placer Between Donner Lake and Summit Comment
  CAS-BOT-BC124773  Salix lemmonii W. R. Dudley 1900-6-14 5111 Placer Valley northwest of Lake Mary, near Summit Comment
  CAS-BOT-BC124786  Salix lemmonii Gordon H. True 1965-5-18 1904 Placer Deer Creek trib. to Truckee River just below Squaw Valley, near confluence with Truckee River 1859 Comment
  CHSC13658  Salix lemmonii E. L. Smith 1971-4-17 984 Placer At Yuba Gap ca. 7 km e of Emigrant Gap. 1770 Comment
  RSA43814  Salix lemmonii D. F. Howe 1948-5-22 s.n. Placer [Unspecified] 1707 Comment
  UC847126  Salix lemmonii A. A. Heller 1917-6-17 12721 Placer along Yuba R. below Cisco; Yuba R 1676 Comment
  CAS-BOT-BC125099  Salix ligulifolia Helen La Plant 1964-6-1 s.n. Placer Ward Creek near Lake Tahoe Comment
  CHSC9586  Salix lucida subsp. caudata E. L. Smith 1971-4-16 960 Placer At Tahoe Vista, e of city limits near King's Beach. 580 Comment
  CAS-BOT-BC129089  Salix scouleriana A. A. Heller 1917-6-17 12694 Placer Along the Yuba river below Cisco 1676 Comment
  CAS-BOT-BC129122  Salix scouleriana W. R. Dudley 1900-6-1 5529 Placer Lake shore above McKinney's Creek Comment
  CAS-BOT-BC129123  Salix scouleriana W. R. Dudley 1900-6-1 5530 Placer Lake shore above McKinney's Creek Comment
  UC484002  Sambucus mexicana Carl B. Wolf 1930-10-11 1729 Placer 4 mi w Emigrant Gap 1524 Comment
  CAS-BOT-BC238835  Sambucus nigra subsp. caerulea Mary P. Wells 1980-9-11 s.n. Placer Forest west of Pioneer Way, Tahoe City 1981 Comment
  JEPS13384  Sambucus racemosa var. microbotrys C. F. Sonne 1886-7-5 127 Placer <at Lakes near summit> Sierra Nevada Mts. 2194 Comment
  CAS-BOT-BC235189  Sambucus racemosa var. racemosa A. A. Heller 1916-8-13 12903 Placer Summit hotel 2133 Comment
  SD243198  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2010-10-16 17017 Placer Northern Sierra Nevada Mountains Foothill: Yankee Jim's Road, 0.5 mile north of Forest Hill Road in Foresthill, near intersection with Mayflower Rd. 947 Comment
  CAS-BOT-BC223279  Sanicula bipinnatifida Alice Eastwood 1912-6-28 497 Placer Colfax Comment
  CDA19549  Sanicula bipinnatifida M. I. Wibawa, G. F. Hrusa , J. Glazner 2002-5-22 239 Placer Forest Hill Divide; Hughes Mill, along Finning Mill Rd, ~ 3 mi N of Forest Hill Rd, ~ 3 mi E of Forest Hill. 1066 Comment
  CHSC3874  Sanicula bipinnatifida Gary Dutton 1966-3-21 135 Placer Found on Lincoln cut-off to Newcastle. Two miles from Lincoln. Comment
  UCR235488  Sanicula bipinnatifida George K. Helmkamp, E. A. Helmkamp 2012-5-5 18933 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UC1714588  Sanicula crassicaulis C. Ritchie Bell 1952-4-19 3 X417-1 Placer 1.6 mi n of the Placer-El Dorado County Line (above California Hwy 49) Comment
  CAS-BOT-BC183655  Sanicula tuberosa G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12062 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 Comment
  JEPS126306  Sanicula tuberosa Steve Matson 2003-7-6 830 Placer Truckee River Watershed SW of Truckee; Squaw Valley; Shirley Canyon; along Granite Chief Trail to PCT (Pacific Crest Trail). Comment
  UCR240919  Sanicula tuberosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19246 Placer Northern Sierra Nevada Mountains, Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road 2040 Comment
  POM308716  Saxifraga aprica Betty J. Jorgensen 1944-6-24 492 Placer Cascade Lakes about 6 miles SW of Soda Springs. Comment
  POM260084  Saxifraga californica C. L. Hitchcock 1940-5-7 6345 Placer 1 mile west of Baxter Comment
  CAS-BOT-BC436889  Saxifraga mertensiana Marcus E. Jones 1882-7-1 3588 Placer Emigrant Gap Comment
  JEPS47489  Saxifraga odontoloma C. F. Sonne 1886-8-6 91 Placer canyon above Coldstream; Sierra Nevada Mountains Comment
  UC186747  Saxifraga oregana C. F. Sonne 1884-8-24 Placer above Coldstream Comment
  POM142223  Saxifraga tolmiei C. F. Sonne 1892-9-11 5573 Placer E slope Tinker Knob. 2744 Comment
  UCD128066  Scandix pecten-veneris Lynn Gould 1962-4-14 39 Placer 0.5 mile northwest of Rocklin. Comment
  SD43660  Scandix pecten-veneris Darley F. Howe 1948-5-21 1915 Placer 455 Comment
  UCD32812  Schedonorus pratensis Beecher Crampton 1964-7-21 7122 Placer Placer County, Cisco Grove, US Hwy. 40. 1722 Comment
  CHSC73483  Schoenoplectus acutus var. occidentalis L. P. Janeway; Eric Schroder 1998-9-16 6326 Placer Lake Tahoe Basin. Southwestern border of Lily Lake; head of McKinney Creek, about 2.7 mi southwest of Lake Tahoe. Neear shore of lake. 2164 Comment
  CHSC74318  Scirpus microcarpus Susi Urie 1998-9-3 98 -228 Placer Lake Tahoe Basin Management Unit -- National Forest. Meadow along the un-named creek along the northeast side of Tahoe Vista; about 0.5 mi north of Lake Tahoe. 1914 Comment
  UCD21846  Scirpus microcarpus Beth Lowe Corbin 1982-8-13 337 Placer 1/8 mile south of Onion Creek campground. Grassy meadow between creek and White Fir forest. Stalks up to 3 1/2' high. Mostly sun. South facing slope, 10% incline. Common. 1816 Comment
  CAS-BOT-BC110997  Scirpus microcarpus Lewis Samuel Rose 1944-7-25 44238 Placer Chambers Lodge, Lake Tahow meadow 1920 Comment
  UC1100817  Scirpus pungens Malcolm A. Nobs, S. Galen Smith 1949-8-22 1545 Placer at sw city limits Roseville (marshy stream) Comment
  UCD92480  Scribneria bolanderi Beecher Crampton 1953-4-21 1116 Placer 2 miles north of Lincoln, Sunnybrook Farms. Comment
  UCD92488  Scribneria bolanderi Beecher Crampton 1954-5-14 1901 Placer 2 miles northwest of Roseville, Diamond K Ranch. Comment
  UCD21913  Scrophularia californica Beth Lowe Corbin 1982-8-25 422 Placer 1 mile SW of Rowton Park. In moist fine, sandy, disturbed soil in logged White Fir forest. Herb up to 2 1/2' high. Flowers dark brownish red. Full sun. SE facing slope, 20% incline. Occasional. 1981 Comment
  JEPS127467  Scutellaria californica Steve Matson 2003-7-6 833 Placer nSNH; about 6 miles SW of Truckee; Squaw Valley; Shirley Canyon trail to the PCT. Comment
  SCFS1144  Scutellaria californica E. Krimmel, F. Felix 2014-6-26 Placer NFam. In dry streambed at NW fork of first creek on trail down (Onion Creek). Comment
  SEINET3828329  Sedum spathulifolium George K. Helmcamp, E. A. Helmkamp 2012-1 18923 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road. 1.2 miles west of its junction with Foresthill Road, 0.3 air mi. SE (123) of Clementine Dam on the American River. (Auburn 7.5) 396 Comment
  UC831069  Sedum spathulifolium Marcus E. Jones, A. M. 1882-6-30 3345 Placer Emigrant Gap Comment
  UCR235594  Sedum spathulifolium George K. Helmkamp, E. A. Helmkamp 2012-5-5 18923 Placer Northern Sierra Nevada Mountains Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi. SE (123 deg. ) of Clementine Dam on the American River 396 Comment
  RSA0074742  Sedum spathulifolium Marcus E. Jones 1882-6-30 3345 Placer Emigrant Gap. Comment
  UCD102080  Sedum spathulifolium Noel F. Sommer 1954-5-19 102 Placer 2.9 miles southeast of U.S. Highway 40 on road originating 2.5 miles north of Weimar and going east to Foresthill. 762 Comment
  CAS-BOT-BC62097  Selaginella hansenii Viola N. Poole 1932-5-1 s.n. Placer Auburn Comment
  UCD159864  Selaginella wallacei G. Ledyard Stebbins 1970-7-12 7052 Placer Bear River Canyon, 2 miles north of Alta. 1097 Comment
  JEPS126351  Senecio hydrophilus Steve Matson 1998-8-15 379 Placer Tahoe north shore; Snow Creek Watershed, Tahoe Vista/Kings Beach; on north side of pole near Highway 28 in main meadow. Comment
  UCD135552  Senecio integerrimus var. exaltatus Arthur D. Haig 1956-5-23 s.n. Placer 2 miles south of Truckee. Comment
  CAS-BOT-BC364027  Senecio integerrimus var. major G. K. Helmkamp; E. A. Helmkamp 2007-6-12 12328 Placer Northern Sierra Nevada Mountains: Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  CAS-BOT-BC364382  Senecio triangularis unspecified 1906-7-15 6999 Placer Tahoe Tavern, Lake Tahoe Comment
  RSA473091  Senecio triangularis Wm. Martin 1971-9-10 20266 Placer Blue Canyon Creek, 2 miles south of Ranger Station, Tahoe Natl. Forest. Comment
  UCD135801  Senecio triangularis L. M. Sparks 1912-8-1 56 Placer Lake Tahoe. 1920 Comment
  CAS-BOT-BC364383  Senecio triangularis C. F. Sonne 1884-7-20 185 Placer Sierra Nevada Mts. Truckee Comment
  JEPS37599  Senecio triangularis L. S. Smith 1927-8-5 2153 Placer e of Duncan Peak (Robertson Flat Ranger Station) 2346 Comment
  RSA569214  Senecio triangularis B. C. Templeton 1931-7-5 1511 Placer near Meek's Bay. 2280 Comment
  JEPS126318  Sericocarpus oregonensis subsp. californicus Steve Matson 2004-8-22 1115 Placer Tahoe Basin west shore; Ward Canyon; Driveway off Zermatt Road near Courchevel Road. Comment
  CDA37687  Setaria faberi Breckenridge 2004-6-2 s.n. Placer Loomis, along Taylor Road. 0 Comment
  CDA37868  Setaria faberi J. L. Johnson 1980-7-8 s.n. Placer Penryn 0 Comment
  CAS-BOT-BC243550  Setaria parviflora David D. Keck 1932-7-1 1596 Placer 2 miles N. of Auburn on Nevada City Road 426 Comment
  CDA2445  Setaria viridis var. major G. D. Barbe 1974-11-26 1985 Placer Barton Road at Eureka Road, northwest corner, east of Roseville. 0 Comment
  UCD92828  Setaria viridis var. major G. Douglas Barbe 1974-11-26 1985 Placer along Barton Road at Eureka Road, northwest corner, east of Roseville. Comment
  CDA37051  Sherardia arvensis CDFA Staff 1995-5-31 s.n. Placer Pino Ranch, near Newcastle. 0 Comment
  CDA37052  Sherardia arvensis CDFA Staff s.n. Placer Pino Ranch, near Newcastle. 0 Comment
  CHSC81798  Sidalcea glaucescens Lowell Ahart 2001-10-10 9353 Placer French Meadows Reservoir, about 1/4 mile northeast of the boat or trail access area on the northwest side of the reservoir, about 3/4 mile southwest of the bridge across the Middle Fork of the American River, about 1 3/4 miles southwest of Ahart Camp, about 22 miles (air) northeast of Forest Hill. 1591 Comment
  JEPS46167  Sidalcea glaucescens L. S. Smith 1928-6-9 2294 Placer s slope Squaw Valley Tahoe Forest, s slope Squaw Valley 1828 Comment
  OBI48964  Sidalcea glaucescens Lewis S. Rose 1938-9-14 38262 Placer South Fork of Yuba River, 3 mi E of Cisco 1737 Comment
  RSA448572  Sidalcea glaucescens Bonnie C. Templeton 1931-7-15 1521 Placer Near Meeks Bay, Lake Tahoe 686 Comment
  UC1124961  Sidalcea glaucescens B. Bolt 1934-7-17 143 Placer 0.5 mi s Lost Emigrant Mine; Tahoe National Forest, Truckee Quad. 2072 Comment
  UC112805  Sidalcea glaucescens Katharine Brandegee 1908-7-1 Placer Donner, Summit Station Donner; , Summit Station Comment
  UC662663  Sidalcea glaucescens L. S. Rose 1941-7-14 41314 Placer Homewoods , Homewood (Lake Tahoe) 1900 Comment
  UCR207124  Sidalcea glaucescens George K. Helmkamp, E. A. Helmkamp 2009-7-16 15221 Placer Sierra Nevada Mountains, Forest Hill Road, 26.1 miles northeast of the city of Foresthill, c. 3/4 mi. NW of Sailor Flat 2020 Comment
  RSA232851  Sidalcea glaucescens L. S. Rose 1968-7-20 68187 Placer 2 miles east of Cisco Grove 1768 Comment
  SDSU8178  Sidalcea glaucescens D. F. Howe 1965-5-21 Placer Canyon of south side of north fork of American River between Forest Hill and Yankee Jims. 914 Comment
  SD113808  Sidalcea hartwegii Darley F. Howe 1951-5-2 2107 Placer 4.0 miles north of Auburn 456 Comment
  UCD13330  Sidalcea malviflora Kristy S. Howard 1989-6-3 220 Placer Placer CO., Highway 174. T15N, R9E Sect. 27, NW 1/4. Elevation 2000 ft. 609 Comment
  CHSC73957  Sidalcea oregana subsp. spicata Susi Urie 1998-8-28 98 -139 Placer Middle of Page Meadows; about 2 mi west of Lake Tahoe and Sunnyside. 2115 Comment
  JEPS126280  Sidalcea oregana subsp. spicata Steve Matson 2002-6-29 535 Placer Tahoe north shore: Snow Creek Watershed, Tahoe Vista/Kings Beach; main meadow next to pond near Highway 28. Comment
  LA83273  Sidalcea oregana subsp. spicata O. H. Kappler; 1946-7-18 1318 Placer Lake Tahoe, NW shore 1920 Comment
  UCD116847  Sidalcea oregana subsp. spicata G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12639 Placer Northern Sierra Nevada Mountains, 0.1 mile south of the Rainbow exit from Interstate 80, 0.5 miles east of Rainbow. 1790 Comment
  UCD33730  Sidalcea oregana subsp. spicata Beecher Crampton 1972-7-26 8838 Placer Placer County, Carpenter Flat east of Emigrant Gap. 1615 Comment
  OBI48959  Sidalcea reptans Lewis S. Rose 1937-7-29 37614 Placer Tahoe Vista 1905 Comment
  SBBG71658  Silene M. N. Ackley -Jun-1925 75 Placer Blue Cyn 1430 Comment
  CDA11994  Silene californica G. F. Hrusa 1995-5-2 12175 Placer Sierra Nevada; 1 km. east of Mosquito Ridge Rd. crossing of North Fork of Middle Fork of the American River. Comment
  UC1137915  Silene californica G. T. Nordstrom 1934-6-21 143 Placer 1 1/2 mi w Mammoth Spring; Colfax Quad., Tahoe National Forest, w of Mammoth Spring Comment
  UC465606  Silene californica Katharine Brandegee July 1908 Placer Alta Comment
  CDA16822  Silene douglasii G. F. Hrusa, J. Glazner 2001-7-15 15962 Placer Sierra Nevada; Crows Nest Pk. immed. W of Sugarbowl. 2346 Comment
  UC128140  Silene douglasii Miss Harriet A. Walker 1908-7-26 1589 Placer Cisco 1810 Comment
  UCD22170  Silene douglasii Rex Palmer 1979-6-20 N 305 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD150314  Silene douglasii var. douglasii James A. Neilson Jr. 1970-8-5 1771 Placer Tahoe Basin, Ward Creek area. 2499 Comment
  UCD98710  Silene gallica Greg Vita 1978-5-7 24 Placer W. slope of Folsom Lake, 1.2 miles N of Twin Rocks Road along Boulder Road. 152 Comment
  CAS-BOT-BC386895  Silene gallica John Thomas Howell; Gordon H. True 1971-5-26 47620 Placer northern limits of Lincoln 48 Comment
  CAS-BOT-BC389497  Silene menziesii Alice Eastwood 1909-1-1 106 Placer Lake Tahoe Region. Ward Creek Comment
  RSA782053  Sisyrinchium elmeri Lisa Karst 2002-1 CA 02 -2 Placer Alpine Village, Tahoe River. [county not specified] Comment
Read comments
Jan 7 2016
  SACT002229  Sitanion hystrix D. Meyer 1983-7-3 Placer 5.4 miles north of Foresthill Road. 1234.44 Comment
  SACT002237  Sitanion hystrix James Grove 1977-7-15 Placer 2000.0 Comment
  SACT002257  Sitanion jubatum Michael Baad 1976-6-3 Placer Descending towards Middle Fork on road from Forest Hill to French Meadows. 1.5 miles east of Forest Hill. 701.0 Comment
  UCR249594  Smilacina racemosa George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20818 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road 768 Comment
  JEPS73041  Smilacina stellata Gladys L. Smith 1972-6-20 3272 Placer springy place along road just above Ward Summit chairlift Comment
  CDA5935  Solanum dimidiatum Clark, Margaret Bellue Oct 1945 Placer Railroad yards, Roseville. 0 Comment
  UCD126842  Solanum dimidiatum T. C. Fuller 1968-7-22 17406 Placer between sidewalk and street, 221 Elm Street, Roseville. Comment
  CDA5943  Solanum dimidiatum K. L. Milam 1968-7-15 Placer Sierra Nevada; 221 Elm Street, Roseville. Comment
  RSA285951  Solanum dimidiatum T. C. Fuller 1968-7-22 17406 Placer sidewalk and street, 221 Elm St., Roseville, Placer Co. Comment
  NY820416  Solanum xanti M. J. Williams 1985-7-6 85- 63 --4 Placer Pacific Crest Trail between old and new Donner Summits Comment
  SEINET3162627  Solanum xanti W. H. Evans 1891-8-1 sn Placer Lake Tahoe Comment
  JEPS71535  Solanum xanti Gladys L. Smith 1972-6-21 3283 Placer roadbank going into Alpine Meadows 2072 Comment
  RSA122319  Solidago canadensis subsp. elongata B. Bolt 1934-8-22 186 Placer Grayhorse Flat, west of Lake Tahoe. 1982 Comment
  SEINET4560809  Solidago canadensis subsp. elongata George K. Helmkamp, E. A. Helmkamp 2010-1 17027 Placer Northern Sierra Nevada Mountains Foothills: along Forest Route 24 at Parker Flat and Beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine reservior dam 1180 Comment
  UCR171341  Solidago canadensis subsp. elongata George K. Helmkamp, E. A. Helmkamp 2005-10-1 9971 Placer Northern Sierra Nevada Mtns., NW of Lake Tahoe; Junction of Bear Creek Dr. and Big John Road (c. 2.2 miles west of Calif. Highway 89 and just south of Alpine Meadows Road) 2015 Comment
  UCR190588  Solidago canadensis subsp. elongata George K. Helmkamp, E. A. Helmkamp 2007-9-14 12964 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 15 miles east of Foresthill 832 Comment
  CAS-BOT-BC365504  Solidago elongata Catherine Best 1981-8-1 s.n. Placer Big Meadow, about 3 miles south of French Meadows 1600 Comment
  JEPS126355  Solidago elongata Steve Matson 2002-8-4 659 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; nearly one mile SW of Parking lot and picnic spot south side of Highway 267, along Lookout Mtn. Creek. Comment
  JEPS126408  Solidago elongata Steve Matson 1998-8-18 370 Placer Tahoe north shore Watershed, Tahoe Vista/Kings Beach; Middle Fork Snow Creek above golf course along trails. Comment
  JEPS32359  Solidago elongata L. S. Smith 1925-8-12 1698 Placer Millers Defeat which is about 2 1/2 mi s Duncan Peak (road to Last Chance); Millers Defeat 1859 Comment
  CAS-BOT-BC365114  Solidago velutina subsp. californica Mrs. C. E. Miller 1919-1-1 s.n. Placer McKinneys, Lake Tahoe Comment
  SCFS11529127  Solidago velutina subsp. californica E. Krimmel 2012-8-28 Placer NFAm below Chickering bridge. Growing in a drying stream bed. Comment
  UC579222  Solidago velutina subsp. californica G. T. Nordstrom 1934-6-21 130 Placer 4/10 mi w by nw Mammoth Springs; Colfax Quad. Comment
  UCD21789  Solidago velutina subsp. californica Beth Lowe Corbin 1982-8-25 423 Placer 2 miles SW of Onion Creek campground. 1965 Comment
  CAS-BOT-BC157302  Sorbus californica Dr. Kellogg 1870-7-9 s.n. Placer Summit Comment
  CAS-BOT-BC157303  Sorbus californica T. S. Brandegee s.n. Placer Summit Comment
  POM366677  Sorbus californica Wm. Martin 1971-9-10 20274 Placer Blue Canyon Creek, 2 miles south of Ranger Station, Tahoe Natl. Forest. Comment
  UC1128678  Sorbus californica N. French 1934-6-13 408 Placer Lock Leven Lake; Tahoe National Forest 2042 Comment
  UC128209  Sorbus californica Miss Harriet A. Walker 1908-7-26 1445 Placer Cisco 1810 Comment
  RSA407380  Sparganium angustifolium Lyman Benson 1932-7-31 4014 Placer Donner Lake; Sierra Nevada; Truckee River watershed. 1890 Comment
  POM312972  Sparganium natans Malcolm A. Nobs, S. Galen Smith 1949-8-21 1509 Placer Placer County: Marsh between sandy beach and Agate Bay, north end of Lake Tahoe Comment
  UCR233270  Spartium junceum George K. Helmkamp, E. A. Helmkamp 2011-7-9 17679 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCD34130  Spergula arvensis Beecher Crampton 1977-3-8 9452 Placer Placer County, S.W. of Lincoln along Fiddyment road. Comment
  UCD150465  Spergularia rubra James A. Neilson Jr. 1971-8-11 2317 Placer Tahoe Basin, Homewood. 1905 Comment
  CAS-BOT-BC390676  Spergularia rubra Saichi Kawahara 1969-7-19 1552 A Placer Highway 800, 500 feet south of Nevada County Line 1889 Comment
  CDA15666  Spiraea splendens G. F. Hrusa, J. Glazner 1999-7-18 15210 Placer Lake Tahoe; Wooded slopes betw. Squaw Ck, Hwy 89, and Squaw Valley Rd. 1889 Comment
  UCD114068  Spiraea splendens G. F. Hrusa; J. Glazner 2000-9-3 15678 A Placer Sugar Bowl Ridge, immediately to w of proposed Crow's Nest ski run. 2164 Comment
  UCD34057  Sporobolus cryptandrus Beecher Crampton 1975-10-14 9330 Placer Emigrant Gap area on Interstate Hwy. 80 just E of Vista Point. 1524 Comment
  UCD93120  Sporobolus cryptandrus Beecher Crampton 1967-7-26 8157 Placer 1 mile NE of Colfax, Interstate Hwy. 80W. 762 Comment
  UCD93131  Sporobolus cryptandrus Beecher Crampton 1969-10-9 8518 Placer Ca. 4 miles E of Cisco Grove, Interstate Hwy. 80 westbound, Big Bend area. 1828 Comment
  UCD43851  Stachys ajugoides C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-7 1217 Placer Lake Tahoe Basin; Antone Meadows UTM's 10 746205E; 4343094N. 2072 Comment
  UCD43037  Stachys rigida subsp. rivularis C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-18 406 Placer Lake Tahoe Basin; Blackwood Canyon. UTM's 10 743067E, 4332664N. 1938 Comment
  UCD43327  Stachys rigida subsp. rivularis C. E. H. R. Meadow Assessment; Kathren Murrell and Ian Hart 1999-8-12 695 Placer Lake Tahoe Basin; Watson Creek. UTM's 10 748155E; 4346076N. 2243 Comment
  CAS-BOT-BC181374  Stellaria calycantha Alice Eastwood 1909-1-1 242 Placer Deer Park - Lake Tahoe Region Comment
  UCD150466  Stellaria crispa James A. Neilson Jr. 1970-8-26 1825 Placer Tahoe Basin, Ward Creek. 2011 Comment
  CDA15958  Stellaria longipes G. F. Hrusa, J. Glazner 1999-7-17 15145 Placer Martis Valley; Martis Valley, off Hwy 267, S of Truckee. 1889 Comment
  CAS-BOT-BC391174  Stellaria longipes subsp. longipes Alice Eastwood 1909-1-1 36 Placer Lake Tahoe Region. Sunnyside Comment
  UC61558  Stellaria longipes var. longipes Beryl O. Schreiber 1933-7-19 877 Placer Donne Monument Donner Monument; Donner Lake Comment
  UCR237457  Stellaria media George K. Helmkamp, E. A. Helmkamp 2012-2-23 18579 Placer Eastern edge Sacramento Valley, Newcastle, along CA-193 (Newcastle Hwy), 0.1 mile southeast of its junction with Langs Hill Road, west of the junction with I-80, SW of Auburn 279 Comment
  UC1563938  Stellaria nitens Barbara Ertter with David Thompson 1989-4-8 8175 Placer near Auburn State Recreation Area entrance (Iowa Creek Road, ca 2 mi from I-80, at creek crossing) 518 Comment
  UC202225  Stephanomeria lactucina Heller 12893 Placer Summit Station 2121 Comment
  SACT002328  Stipa californica D. Meyer 1984-8-26 Placer Collected at summit 1660.0 Comment
  SACT002330  Stipa californica D. Meyer 1984-7-8 Placer Roadside 1758.0 Comment
  SACT002343  Stipa columbiana Michael Baad 1983-7-23 Placer Collected south of airport along northeast side of Highway 267 1767.84 Comment
  UCR146661  Stipa lemmonii Beecher Crampton 1955-6-15 2910 Placer Sierra Nevada Mountains, 0.75 mile south of Yankee Jims 880 Comment
  SACT002382  Stipa occidentalis Michael Baad 1976-8-4 Placer Collected on trail at end of jeep road, 2 miles east of Talbot Camp. Northeast of Mildred Ridge 1975.0 Comment
  SEINET10893292  Stipa stillmanii Smith 1931-6-21 Smith 2557 Placer Shallow, loose, loam soil. East slope. trail below pine Nut, Duncan Canyon; ca 11 miles east 9northeast) of Michigan bluff 1524 Comment
  CAS-BOT-BC87762  Streptanthus tortuosus A. A. Heller 1917-6-17 12690 Placer Near the Yuba River below Cisco. 1676 Comment
  CAS-BOT-BC87769  Streptanthus tortuosus F. Almeda 1993-7-24 7264 Placer Sierra Nevada. About 15 miles southeast of Interstate Highway #80 at Soda Springs on the trail to Upper Sheep Valley. 2133 Comment
  CAS-BOT-BC87774  Streptanthus tortuosus John Thomas Howell 1943-7-21 18659 Placer Donner Pass to Mount Lincoln. Comment
  UCD164328  Streptanthus tortuosus N. Ivalu Cacho; Sharon Y. Strauss, Patrick J. McIntyre 2011-6-25 IC-SS 235 - Placer Casa Loma Rd (Alta Exit): on serpentine outcrop along railroad tracks. 1164 Comment
  POM95334  Streptanthus tortuosus Marcus E. Jones 1902-6-28 s.n. Placer Emigrant Gap. Comment
  UC112906  Streptanthus tortuosus var. orbiculatus Katharine Brandegee 1908-7-17 Placer near Blue Canyon Comment
  UC147610  Streptanthus tortuosus var. orbiculatus Harriet A. Walker 1908-6-26 1302 Placer Cisco 1810 Comment
  CDA11991  Styrax officinalis var. redivivus G. F. Hrusa 1995-5-2 12172 Placer Sierra Nevada; below Mosquito Ridge Rd. approx. 1 km. east of crossing of North Fork of Middle Fork of the American River. Comment
  JEPS32521  Styrax officinalis var. redivivus W. L. Jepson 1938-4-5 18581 a Placer 2 mi e Auburn; e of Auburn Comment
  JEPS81209  Styrax officinalis var. redivivus Douglas W. James Jr. 1973-5-27 119 Placer off Mosquito Ridge Road about 2 mi from Forest Hill 853 Comment
  UCD40903  Styrax officinalis var. redivivus Cathleen Chapton 1983-5-28 31 Placer Lake Clementine Road, American River Canyon. 243 Comment
  JEPS32511  Styrax officinalis var. redivivus Alice King 1920-1 Placer Rattlesnake Bend Comment
  RSA568779  Styrax redivivus Peter Fritsch 1994-4-18 1383 Placer About 3 km east of Auburn along Hwy 49. Comment
  CAS-BOT-BC245834  Symphoricarpos John H. Thomas; Hazelle A. Thomas 1956-7-21 6190 Placer Vicinity of Donner Pass, about 80 miles northeast of Sacramento, Sierra Nevada 2377 Comment
  JEPS72396  Symphoricarpos rotundifolius var. rotundifolius Gladys L. Smith 1973-6-1 3282 Placer slopes above Sherwood Forest (Ward Peak); Ward Peak 2590 Comment
  JEPS59431  Symphoricarpos rotundifolius var. rotundifolius Ezra Brainerd and Viola B. Baird 1915-7-9 151 Placer Bear Rock; Sierra Nevada Mts. 1889 Comment
  CAS-BOT-BC97554  Symphyotrichum ascendens Margaret Williams 1974-8-8 74 -P1-26 Placer [Murphy's] Murphy Meadow, 5 miles southeast of Hirschdale 2316 Comment
  CAS-BOT-BC97555  Symphyotrichum ascendens J. F. Emmel 1971-8-21 380 Placer 0.2 air mile ENE of N. end of Lake Mary, Donner Pass 2156 Comment
  CHSC73921  Symphyotrichum foliaceum var. parryi Susi Urie 1998-8-17 98 -056 Placer About 0.5 mi north of Ward Creek, along a small tributary; about 2 mi west of Lake Tahoe and Sunnyside. 2097 Comment
  CAS-BOT-BC98478  Symphyotrichum spathulatum A. A. Heller 1917-8-13 12880 Placer Summit Valley 2118 Comment
  CAS-BOT-BC98481  Symphyotrichum spathulatum C. G. Pringle 1884-9-1 s.n. Placer Summit Valley, Sierra Nevada Mts. Comment
  UCD136650  Symphyotrichum spathulatum G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12643 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  CAS-BOT-BC98483  Symphyotrichum spathulatum L. R. Abrams 1917-9-16 6764 Placer Meadow - Emigrant Gap to Summit Comment
  CHSC74353  Symphyotrichum spathulatum var. spathulatum Susi Urie; Eric Schroder 1998-9-10 98 -317 Placer Antone meadows; along Burton Creek, about 2.1 mi northwest of Lake Tahoe. 2072 Comment
  SEINET3245760  Symphyotrichum spathulatum var. spathulatum G. K. Helmkamp, E. A. Helmkamp 2007-1 12643 Placer Northern Sierra Nevada Mountains: Donner Pass Road between Donner and Nordan, about 0.2 mile east of the Nevada Co. border 2150 Comment
  CAS-BOT-BC376789  Tanacetum parthenium Peter H. Raven 1956-8-4 9987 Placer Blue Canyon 1432 Comment
  UC20474  Tetrapteron graciliflorum H. N. Bolander 1865-4-13 4564 Placer New Castle Comment
  CAS-BOT-BC392399  Thalictrum fendleri Alice Eastwood 1909-1-1 122 Placer Lake Tahoe Region. Sunnyside Comment
  SEINET12092705  Thalictrum fendleri J. H. Nishida 1985-1 787 Placer Homewood: Red Fir Forest 1829 Comment
  UC1729931  Thalictrum sparsiflorum L. P. Janeway, Eric Schroder, Katherine Murrell, Marcus Yee 1998-7-15 5767 Placer 1.7 mi w of Lake Tahoe (n side of Blackwood Creek, Homewood Quadrangle); Blackwood Creek, Homewood Quadrangle 1938 Comment
  CHSC96505  Thysanocarpus radians Lowell Ahart; Brian Williams 2007-4-13 13671 Placer Waste area about 50 yards north of the Manzanita Cemetery, about 3 1/3 miles north of Lincoln. 37 Comment
  SD143459  Thysanocarpus radians Darley F. Howe 1951-5-1 2112 Placer 455 Comment
  SD44634  Thysanocarpus radians Darley F. Howe 1951-5-1 Placer 455 Comment
  CAS-BOT-BC228846  Torilis arvensis George K. Helmkamp; E. A. Helmkamp 2011-5-6 17218 Placer Eastern Edge of Sacramento Valley: Camp Far West Road, 0.1 mile west of its junction with McCourtney Road, c. 6.3 mi. NE (67 deg. ) of Wheatland 58 Comment
  CDA37054  Torilis arvensis CDFA Staff s.n. Placer Pino Ranch, near Newcastle. 0 Comment
  RSA779397  Torilis arvensis George K. Helmkamp, Amy Barnes 2009-7-12 15189 Placer along Todd Valley Road, 0.1 mile south of its junction with Foresthill Road, c. 13 air miles NE of Auburn 854 Comment
  JEPS5225  Torreya californica Rimo Bacigalupi 1952-7-20 3894 Placer off the Mosquito Ridge Road about 4 1/2 mi due e Foresthill (in canyon of Mad Creek, tributary (on n side of canyon) of the Middle Fork of the American River); Middle Fork of the American River, canyon of Mad Creek 670 Comment
  MACF015659  Torreya californica F. A. MacFadden 1934-7-2 12718 Placer American River, 1 mile east of Rawhide Mine. Placer County; California Comment
  UCD93187  Torreyochloa pallida var. pauciflora Beecher Crampton 1972-7-26 8841 Placer Carpenter Flat, east of Emigrant Gap. 1645 Comment
  UCD39020  Tragopogon dubius Beecher Crampton 1960-11-2 5791 Placer 2 miles east of Bowman, along US Hwy. 40. Comment
  RSA101426  Trautvetteria grandis R. Weatherby 1955-8-9 1679 Placer S Fork Haskins Creek, 2 miles S of Bucks Lake. 1646 Comment
  CDA4736  Tribulus terrestris Margaret Bellue, F. Clark 1945-10-11 Placer Roseville. 0 Comment
  UCR257640  Trichostema lanceolatum George K. Helmkamp, Elizabeth Helmkamp 2012-10-13 20016 Placer Sacramento Valley, Granite Bay, Folsom Lake; Park Road 1.8 miles north of the east end of Douglas Blvd. 146 Comment
  JEPS14347  Trichostema oblongum Rimo Bacigalupi with G. L. Stebbins, A. Hawkes, J. Hunsiker, D. Zohary, F. Ehrendorfer and H. Stutz 1952-7-20 3884 Placer 7 mi E of Iowa Hill (S slope of hill just S of Shirttail Public Camp); Tahoe Naational Forest 1158 Comment
  UCR198055  Trientalis latifolia Lisa Montany 1985-5-18 29 Placer Mosquito Ridge Road, 14.3 mi west of Forest Hill Road 1220 Comment
  UCD108260  Trifolium ciliolatum Beecher Crampton 1955-6-17 2924 Placer 10.5 miles W of Forest Hill. Comment
  JEPS127542  Trifolium cyathiferum Steve Matson 1998-6-6 225 Placer nSNH: Martis Valley, about 4 miles SE of Truckee. Martis Creek Wildlife Area, 50 m south of Hwy 267, under power lines, 100 m east of Martis Creek. Comment
  UC146435  Trifolium cyathiferum Miss Harriet A. Walker 1908-7-25 1407 Placer Cisco 1810 Comment
  SEINET12157176  Trifolium cyathiferum C. F. Sonne 1884-1 s.n. Placer Goldstream Comment
  UCD33050  Trifolium depauperatum Beecher Crampton 1966-4-14 7644 Placer North of Lincoln. Comment
  UCR249526  Trifolium depauperatum var. depauperatum George K. Helmkamp, Amy Barnes 2013-3-28 20280 Placer Eastern Sacramento Valley, along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 Comment
  SEINET7865170 Image available Trifolium dubium George K. Helmkamp, Mary Alice Barnes 2013-5-3 20475 Placer Foothills, northern Sierra Nevada Mountains; Mosquito Ridge Road, 1.1 miles south of Forest Hill Road 962 Comment
  UCD39210  Trifolium dubium Beecher Crampton 1953-5-26 1341 Placer 2 miles N of Lincoln, Chamberlain Ranch. Comment
  UCR190668  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 2007-5-23 12077 Placer Northern Sierra Nevada Mountains Foothills, junction of Iowa Hill Road and Finning Mill Road (U. S. F. S. Rd #10) in the Sugar Pine Recreation area 1137 Comment
  UCR207872  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 2009-4-22 14570 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR257603  Trifolium dubium George K. Helmkamp, Amy Barnes 2014-3-21 22636 Placer Sacramento Valley, Riosa Road at the east side of its junction with CA-65, just west of Sheridan 33 Comment
  UCD163054  Trifolium glomeratum Robert E. Preston 2014-4-22 2958 Placer 1.8 mi SE of Sheridan, on terraces adjacent to Yankee Slough, E of old Hwy 65. 30 Comment
  CDA37246  Trifolium hirtum CDFA Staff s.n. Placer Nute Ranch, near Nute Road. 0 Comment
  SD248419  Trifolium hirtum George K. Helmkamp, Mary Alice Barnes 2013-5-3 20472 Placer Foothills, northern Sierra Nevada Mountains: Mosquito Ridge Road, 1.1 miles south of Forest Hill Road. 961 Comment
  UC1278008  Trifolium hirtum B. Crampton 1957-5-7 3993 Placer 2 mi n Lincoln (along US Hwy 99E) Comment
  UCR173176  Trifolium hirtum George K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10126 Placer Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin 122 Comment
  UCR188845  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2007-3-25 11712 Placer Foothills, Northern Sierra Nevada Mountains, Forest Hill Road at the junction with the unnamed road to Lake Clementine 457 Comment
  UCD111273  Trifolium longipes R. Tofsrud 1951-7-1 s.n. Placer Near Campton's store, Hwy. 40 (above Nayak). Comment
  UCD111275  Trifolium longipes R. Tofsrud 1951-7-11 s.n. Placer Ice Lake, 4 mi. S of Soda Springs. Comment
  UCD38472  Trifolium microcephalum Beecher Crampton 1955-6-15 2870 Placer Head of Bunch Canyon. 0.5 miles south of US Hwy. 40. Forest Hill Road. Comment
  CHSC82587  Trifolium monanthum subsp. parvum Lowell Ahart 2002-7-22 9887 Placer 50 yards northeast of the small natural lake, on the east side of the paved road to Lake Valley Reservoir, about 1/4 mile east of Yuba Gap and Highway 80. 1780 Comment
  POM20464  Trifolium monanthum subsp. parvum H. M. Hall 1910-7-11 8759 Placer Yuba River at Cisco Flats. 1740 Comment
  CAS-BOT-BC230185  Trifolium productum A. A. Heller 1919-7-25 13301 Placer Rocks near the Yuba River below Cisco 1676 Comment
  CAS-BOT-BC230181  Trifolium productum C. F. Sonne 1886-7-18 56 Placer Woods on Truckee River Comment
  CHSC74093  Trifolium repens Susi Urie 1998-8-25 98 -094 Placer About 0.2 mi north of Lake Tahoe; large meadow complex between Kings Beach and Tahoe Vista. 1901 Comment
  UCD147090  Trifolium striatum Chuck Hughes 2013-5-6 374 Placer Southwest margin of Camp Far West Reservoir. 96 Comment
  SD247434  Trifolium tomentosum George Helmkamp, Amy Barnes 2013-3-28 20299 Placer Eastern Sacramento Valley: Northwest side of junction if Riosa Road and Andressen Road, northeast of Sheridan (Lincoln 7.5'Q) 35 Comment
  UCR249534  Trifolium tomentosum George K. Helmkamp, Amy Barnes 2013-3-28 20299 Placer Eastern Sacramento Valley, northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  HSC82226  Trifolium variegatum Thomas W. Nelson 1979-4-10 4576 Placer Along W side of Sierra College Blvd. between I-80 and Douglas Blvd. Comment
  UCD109442  Trifolium variegatum var. geminiflorum R. Tofsrud 1951-7-1 s.n. Placer Near Campton's store, Hwy. 40 (above Nayak). Comment
  JEPS127437  Trifolium wormskioldii Steve Matson 2003-6-29 817 Placer nSNH; Martis Valley; about 4 miles SE of Truckee; Martis Creek Wildlife Area; north of Highway 267. Comment
  UCD38500  Trifolium wormskioldii Beecher Crampton 1955-7-13 3013 Placer Bear Valley, along State Hwy. 20, 1.5 mile north of Emigrant Gap, Placer-Nevada Co. line. 1371 Comment
  UCD44594  Trifolium wormskioldii C. E. H. R. Meadow Assessment; Kathren Murrell and Kara DeVries 2000-7-20 1960 Placer Lake Tahoe Basin; Lake Forest. UTM's 10 748735E; 4341413N 1914 Comment
  CHSC84542  Triglochin scilloides John Dittes 2003-5-25 2003 -22 Placer Sacramento Valley; approximately 3.3 air-miles south of Lincoln, 0.5 air-miles due east of intersection of State Highway 65 and 12-Bridges Exit. 39 Comment
  POM109197  Trillium angustipetalum Marcus E. Jones 1882-6-29 s.n. Placer Emigrant Gap. Comment
  RSA0035742  Triphysaria eriantha George K. Helmkamp 2013-3-1 20152 Placer Ranch House Road, 0.6 mile southeast of Riosa Road in Sheridan 37 Comment
  SD247512  Triphysaria eriantha George K. Helmkamp, Amy Barnes 2013-3-28 20285 Placer Easterm Sacramento Valley: along 10th Street/Ranch House Road, 0.6 mile south of its junction with Riosa Road in Sheridan (Lincoln 7.5'Q) 42 Comment
  SEINET7067116  Triphysaria eriantha A. G. Vestal 1947-4-29 s.n. Placer About 3.3 miles north of Auburn on Route 49. Coordinate datum: NAD27. Comment
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