Search Results — 2000 specimen records retrieved (1987 records with coordinates)
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Results for search: County=PLACER; Source=All; Collector=Helmkamp;   
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC126721  Calycadenia multiglandulosa G. K. Helmkamp; E. A. Helmkamp 2010-6-26 16368 Placer Sierra Nevada Mountains Foothills: junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  CAS-BOT-BC146432  Rosa bridgesii G. K. Helmkamp; Amy Barnes 2009-7-12 15176 Placer Sierra Nevada Mountains Foothills: along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 Comment
  CAS-BOT-BC151673  Diplacus torreyi G. K. Helmkamp; E. A. Helmkamp 2009-8-12 15425 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill, Duncan Peak 7.5' Q. 1661 Comment
  CAS-BOT-BC157201  Sanguisorba officinalis G. K. Helmkamp; Amy Barnes 2009-7-12 15174 Placer Sierra Nevada Mountains Foothills: along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 Comment
  CAS-BOT-BC175712  Lathyrus sulphureus G. K. Helmkamp; E. A. Helmkamp 2007-5-18 12004 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  CAS-BOT-BC177350  Delphinium nuttallianum G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12060 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 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
  CAS-BOT-BC220475  Monardella sheltonii G. K. Helmkamp; E. A. Helmkamp 2007-5-30 12206 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill 488 Comment
  CAS-BOT-BC226650  Epilobium brachycarpum G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12079 Placer Northern Siera 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-BC226818  Senecio aronicoides George K. Helmkamp; E. A. Helmkamp 2012-5-11 18944 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 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
  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
  CAS-BOT-BC226940  Lupinus nanus George K. Helmkamp; E. A. Helmkamp 2011-4-10 17171 Placer Sacramento Valley: along Riosa Road, 2.3 miles east of Sheridan 43 Comment
  CAS-BOT-BC226943  Trifolium hirtum George K. Helmkamp; E. A. Helmkamp 2011-4-10 17156 Placer Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan 41 Comment
  CAS-BOT-BC227441  Luzula comosa George K. Helmkamp; E. A. Helmkamp 2012-5-5 18937 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  CAS-BOT-BC227704  Trifolium ciliolatum G. K. Helmkamp; E. A. Helmkamp 2007-5-18 12019 Placer Northern Sierra Nevada Mountains Foothills: along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  CAS-BOT-BC228547  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp; E. A. Helmkamp 2011-4-10 17158 Placer Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan 41 Comment
  CAS-BOT-BC228548  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp; E. A. Helmkamp 2011-4-10 17174 Placer Sacramento Valley: 2 miles east of Hwy 65 in Lincoln, along CA-193 just west of the junction with Stardust Lane 76 Comment
  CAS-BOT-BC228549  Ranunculus muricatus George K. Helmkamp; E. A. Helmkamp 2011-4-10 17159 Placer Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan 41 Comment
  CAS-BOT-BC228604  Triteleia ixioides subsp. scabra George K. Helmkamp; E. A. Helmkamp 2011-5-6 17219 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
  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
  CAS-BOT-BC228606  Triteleia laxa George K. Helmkamp; E. A. Helmkamp 2011-5-6 17220 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
  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
  CAS-BOT-BC229031  Sanicula crassicaulis George K. Helmkamp; E. A. Helmkamp 2012-5-5 18936 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  CAS-BOT-BC248284  Prunella vulgaris var. lanceolata George K. Helmkamp; E. A. Helmkamp 2010-8-11 16763 Placer Northern Sierra Nevada Mountains: Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek 1082 Comment
  CAS-BOT-BC249043  Phacelia hastata var. hastata George K. Helmkamp; E. A. Helmkamp 2010-7-28 16655 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  CAS-BOT-BC249047  Phacelia hydrophylloides George K. Helmkamp; E. A. Helmkamp 2010-7-28 16675 Placer Northern Sierra Nevada Mountains: Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill 2040 Comment
  CAS-BOT-BC249049  Silene laciniata subsp. californica George K. Helmkamp; E. A. Helmkamp 2010-8-11 16765 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 3.7 miles north of Forest Hill Road 1140 Comment
  CAS-BOT-BC249052  Silene douglasii George K. Helmkamp; E. A. Helmkamp 2010-8-14 16772 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
  CAS-BOT-BC249053  Anaphalis margaritacea George K. Helmkamp; E. A. Helmkamp 2010-8-14 16792 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
  CAS-BOT-BC249054  Senecio triangularis George K. Helmkamp; E. A. Helmkamp 2010-8-14 16795 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
  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
  CAS-BOT-BC257633  Lasthenia glaberrima George K. Helmkamp; E. A. Helmkamp 2011-5-12 17252 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-BC257790  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
  CAS-BOT-BC257791  Diplacus torreyi George K. Helmkamp; E. A. Helmkamp 2010-7-28 16679 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.8 miles east of Forest Route 13/American Hill Road 1662 Comment
  CAS-BOT-BC257794  Trifolium glomeratum George K. Helmkamp; E. A. Helmkamp 2011-6-2 17457 Placer Northern Sierra Nevada Mountains Foothills: along CA-49 southeast of Auburn at a trail entrance to the Auburn State Recreation Area 354 Comment
  CAS-BOT-BC257797  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
  CAS-BOT-BC259177  Cardamine pensylvanica George K. Helmkamp; E. A. Helmkamp 2012-2-23 18576 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
  CAS-BOT-BC261664  Plagiobothrys undulatus George K. Helmkamp; E. A. Helmkamp 2011-5-12 17255 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-BC263231  Vicia G. K. Helmkamp; E. A. Helmkamp 2007-5-18 12034 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
  CAS-BOT-BC270062  Viola tomentosa G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12058 Placer In Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile NW of Forest Hill Road, generally SW of Westville 1576 Comment
  CAS-BOT-BC300503  Polygala cornuta var. cornuta George K. Helmkamp; E. A. Helmkamp 2012-6-19 19216 Placer Northern Sierra Nevada Mountains Foothills: Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 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
  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-BC433220  Lamium purpureum George K. Helmkamp; Elizabeth Helmkamp 2013-4-13 20333 Placer Northern Sierra Nevada Mountains Foothills: Cramer Road at the junction with CA-49, north of Auburn. 412 Comment
  CAS-BOT-BC434223  Lasthenia californica George K. Helmkamp 2013-3-1 20150 Placer Sacramento Valley: Ranch House Road, 0.6 mile southeast of Riosa Road in Sheridan. 37 Comment
  CAS-BOT-BC434224  Lupinus albicaulis George K. Helmkamp; Mary Alice Barnes 2013-5-3 20460 Placer Foothills, northern Sierra Nevada Mountains: SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road. 974 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
  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
  CAS-BOT-BC438816  Petrorhagia dubia George K. Helmkamp; Mary Alice Barnes 2013-4-18 20357 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
  CAS-BOT-BC438817  Calochortus albus George K. Helmkamp; Mary Alice Barnes 2013-4-18 20358 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
  CAS-BOT-BC438818  Lupinus albifrons var. albifrons George K. Helmkamp; Mary Alice Barnes 2013-4-18 20361 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
  CAS-BOT-BC438819  Erythranthe guttata George K. Helmkamp; Mary Alice Barnes 2013-4-18 20377 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
  CAS-BOT-BC438822  Lupinus polyphyllus var. burkei George K. Helmkamp; Mary Alice Barnes 2013-5-3 20458 Placer Northern Sierra Nevada Mountains Foothills: Forest Hill Road, 4.8 miles east of its junction with Upper Clementine Lake Road, 10.1 mi. NE (52 deg. ) of Auburn. 672 Comment
  CAS-BOT-BC438823  Lupinus microcarpus var. densiflorus George K. Helmkamp; Mary Alice Barnes 2013-5-3 20459 Placer Northern Sierra Nevada Mountains Foothills: Forest Hill Road, 4.8 miles east of its junction with Upper Clementine Lake Road, 10.1 mi. NE (52 deg. ) of Auburn. 672 Comment
  CAS-BOT-BC438824  Silene vulgaris George K. Helmkamp; Mary Alice Barnes 2013-5-3 20462 Placer Foothills, northern Sierra Nevada Mountains: SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road. 974 Comment
  CAS-BOT-BC438825  Sidalcea asprella subsp. asprella George K. Helmkamp; Mary Alice Barnes 2013-5-3 20463 Placer Foothills, northern Sierra Nevada Mountains: SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road. 974 Comment
  CAS-BOT-BC438826  Hypochaeris glabra George K. Helmkamp; Mary Alice Barnes 2013-5-3 20464 Placer Foothills, northern Sierra Nevada Mountains: SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road. 974 Comment
  CAS-BOT-BC438827  Marrubium vulgare George K. Helmkamp; Mary Alice Barnes 2013-5-3 20470 Placer Foothills, northern Sierra Nevada Mountains: SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road. 974 Comment
  CAS-BOT-BC438828  Lupinus nanus George K. Helmkamp; Mary Alice Barnes 2013-5-3 20471 Placer Foothills, northern Sierra Nevada Mountains: Mosquito Ridge Road, 1.1 miles south of Forest Hill Road. 962 Comment
  CAS-BOT-BC438829  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. 962 Comment
  CAS-BOT-BC438830  Collomia heterophylla George K. Helmkamp; Mary Alice Barnes 2013-5-3 20473 Placer Foothills, northern Sierra Nevada Mountains: Mosquito Ridge Road, 1.1 miles south of Forest Hill Road. 962 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
  CAS-BOT-BC438834  Nasturtium officinale George K. Helmkamp; Mary Alice Barnes 2013-5-3 20501 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
  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
  CAS-BOT-BC438836  Lupinus microcarpus var. densiflorus George K. Helmkamp; Mary Alice Barnes 2013-5-3 20506 Placer Northern Sierra Nevada Mountains Foothills: junction of Forest Hill Road and Forest Hill Bypass (Old Auburn-Foresthill Rd.), northeast of Auburn. 445 Comment
  CAS-BOT-BC444011  Dichelostemma capitatum subsp. capitatum George K. Helmkamp; Mary Alice Barnes 2013-4-18 20348 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. 170 Comment
  CAS-BOT-BC444012  Polypodium calirhiza George K. Helmkamp; Mary Alice Barnes 2013-4-18 20372 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. 165 Comment
  CAS-BOT-BC444014  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. 293 Comment
  CAS-BOT-BC516749  Hordeum murinum George K. Helmkamp; Amy Barnes 2013-3-28 20284 Placer Eastern Sacramento Valley: along 10th St/Ranch House Rd, 0.6 mi S of its jct with Riosa Road in Sheridan 43 Comment
  CAS-BOT-BC516752  Plantago lanceolata George K. Helmkamp; Amy Barnes 2013-3-28 20295 Placer Eastern Sacramento Valley: NW side of jct of Riosa Rd and Andressen Rd, NE of Sheridan 36 Comment
  CAS-BOT-BC516753  Vicia villosa subsp. villosa George K. Helmkamp; Amy Barnes 2013-3-28 20296 Placer Eastern Sacramento Valley: NW side of jct of Riosa Rd and Andressen Rd, NE of Sheridan 36 Comment
  CAS-BOT-BC516754  Trifolium tomentosum George K. Helmkamp; Amy Barnes 2013-3-28 20299 Placer Eastern Sacramento Valley: NW side of jct of Riosa Rd and Andressen Rd, NE of Sheridan 36 Comment
  CAS-BOT-BC516755  Lomatium utriculatum George K. Helmkamp; Mary Alice Barnes 2013-4-18 20336 Placer Northern Sierra Nevada Mountains foothills: Yankee Jim Road, 0.9 mi E of its jct with Canyon Way, 4.4 mi SE (167 deg. ) of Colfax 561 Comment
  CAS-BOT-BC516756  Plectritis macrocera George K. Helmkamp; Mary Alice Barnes 2013-4-18 20337 Placer Northern Sierra Nevada Mountains foothills: Yankee Jim Road, 0.9 mi E of its jct with Canyon Way, 4.4 mi SE (167 deg. ) of Colfax 561 Comment
  CAS-BOT-BC518712  Castilleja applegatei subsp. pinetorum George K. Helmkamp; E. A. Helmkamp 2012-6-19 19212 Placer Northern Sierra Nevada Mountains Foothills: Mosquite Ridge Rd, 2.7 mi S of jct with Foresthill Rd 820 Comment
  CAS-BOT-BC520326  Poterium sanguisorba var. sanguisorba George K. Helmkamp; E. A. Helmkamp 2012-6-19 19214 Placer Northern Sierra Nevada Mountains Foothills: Foresthill Rd, 2.6 mi E of its jct with Mosquito Ridge Rd in Forest Hill 1051 Comment
  CAS-BOT-BC520350  Trifolium incarnatum George K. Helmkamp; Amy Barnes 2013-3-28 20233 Placer Eastern Sacramento Valley: NW edge of Sheridan, new section of Riosa Rd, connecting new CA-65 with old CA-65 42 Comment
  CAS-BOT-BC63393  Ceanothus prostratus G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12054 Placer Northern Sierra Nevada Mountains: along Forest Hill Rd., 11.1 mi. ne. of Foresthill (Westville 7.5'). 1463 Comment
  CDA25788  Daucus carota G. K. Helmkamp, E. A. Helmkamp 2007-10-28 13104 Placer Sacramento Valley; Along Nicolaus Road 5.8 miles west of Lincoln. Comment
  CDA25789  Sorghum halepense G. K. Helmkamp, E. A. Helmkamp 2007-10-28 13107 Placer Sacramento Valley; Along Nicolaus Road 5.8 miles west of Lincoln. Comment
  CDA36210  Cerastium glomeratum G. K. Helmkamp, E. A. Helmkamp 2009-3-11 14388 Placer Sacramento Valley; Ranch House Road, 0.2 mile south of Sheridan. Comment
  CDA36211  Anthriscus caucalis G. K. Helmkamp, E. A. Helmkamp 2009-5-11 14675 Placer Sierra Nevada Mountains Foothills; Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn. Comment
  CDA36212  Geranium dissectum G. K. Helmkamp, E. A. Helmkamp 2009-5-11 14676 Placer Sierra Nevada Mountains Foothills; Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn. Comment
  CDA36235  Spergula arvensis subsp. arvensis G. K. Helmkamp, E. A. Helmkamp 2009-3-11 Placer Sacramento Valley; Ranch House Road, 0.2 mile south of Sheridan. Comment
  CDA36372  Festuca dertonensis G. K. Helmkamp, E. A. Helmkamp 2009-3-11 14387 Placer Sacramento Valley; Ranch House Road, 0.2 mile south of Sheridan. Comment
  CDA36374  Trifolium campestre G. K. Helmkamp, E. A. Helmkamp 2009-5-7 14619 Placer Sierra Nevada Mountains Foothills; Oxbow Road, 2.0 miles south of its junction with Mosquito Ridge Road; north edge of Oxbow Reservoir. Comment
  CDA36375  Petrorhagia dubia G. K. Helmkamp, E. A. Helmkamp 2009-5-7 14621 Placer Sierra Nevada Mountains Foothills; Oxbow Road, 2.0 miles south of its junction with Mosquito Ridge Road; north edge of Oxbow Reservoir. Comment
  CHSC114148  Trifolium hirtum G. K. Helmkamp; E. A. Helmkamp 2010-4-23 15933 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River. 157 Comment
  CHSC114150  Trifolium dubium G. K. Helmkamp; E. A. Helmkamp 2010-4-17 15884 Placer Sierra Nevada Mountain Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill. 314 Comment
  CHSC114159  Quercus wislizeni G. K. Helmkamp; E. A. Helmkamp 2010-4-17 15883 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA 49 near Pilot Hill. 314 Comment
  CHSC118005  Eucephalus breweri G. K Helmkamp; E. A Helmkamp 2008-9-15 14101 Placer Northern Sierra Nevada Mountains: along Foresthill Road 26 miles northeast of the city of Forest Hill. 1954 Comment
  CHSC118006  Lotus uliginosus G. K Helmkamp; E. A Helmkamp 2008-8-20 14024 Placer Northern Sierra Nevada Mountains: Donner Pass Road on the west side of Donner Pass and east of Norden. 2149 Comment
  CHSC118007  Gayophytum diffusum subsp. parviflorum G. K Helmkamp; E. A Helmkamp 2008-8-20 14013 Placer Northern Sierra Nevada Mountains: Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River. 1811 Comment
  CHSC118009  Asyneuma prenanthoides G. K Helmkamp; E. A Helmkamp 2008-9-15 14114 Placer Northern Sierra Nevada Mountains: along Foresthill Road 20 miles northeast of the city of Forest Hill. 1707 Comment
  CHSC118021  Poterium sanguisorba G. K Helmkamp; E. A Helmkamp 2007-9-14 12959 Placer Foothills, northern Sierra Nevada Mountains: along Mosquito Ridge Road 0.4 mile east of Foresthill. 942 Comment
  HSC104176  Centaurea solstitialis G. K. Helmkamp, E. A. Helmkamp 2012-10-13 20020 Placer Sacramento Valley: Granite Bay, Folsom Lake; Park Rd, 1.8 mi. N or the east end of Douglas Blvd. 146 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
  JEPS119444  Layia chrysanthemoides George K. Helmkamp with E. A. Helmkamp 2011-4-10 17155 Placer Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan. Comment
  OBI081422  Lupinus bicolor George K. Helmkamp, Amy Barnes 2013-3-28 20290 Placer Eastern Sacramento Valley; northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  OBI81421  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, Amy Barnes 2013-3-28 20297 Placer Eastern Sacramento Valley; northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  OBI82141  Trifolium dubium George K. Helmkamp, Mary Alice Barnes 2013-5-3 20488 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
  OBI82142  Lupinus albifrons var. collinus George K. Helmkamp, Mary Alice Barnes 2013-5-3 20486 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
  OBI82257  Robinia pseudoacacia George K. Helmkamp, Mary Alice Barnes 2013-5-3 20490 Placer Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 mi. east (92 deg. ) of Foresthill 829 Comment
  OBI82260  Poa bulbosa George K Helmkampf, Mary Alice Barnes 2013-5-3 20491 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
  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
  OBI82263  Torilis arvensis George K Helmkampf, Mary Alice Barnes 2013-5-3 20492 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
  OBI82266  Phacelia heterophylla subsp. virgata George K. Helmkamp, Mary Alice Barnes 2013-5-3 20487 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
  OBI83581  Hordeum depressum George K. Helmkamp, Amy Bares 2013-3-28 20284 Placer Eastern Sacramento Valley: along 10th Street/ Ranch House Rd. 0.6 mile south of its junction with Riosa Road in Sheridan (Lincoln 7.5' Q,: 38 deg. 58' 41" N 121 deg. 22' 06" W +- 100m) 43 Comment
  RSA0012084  Erigeron inornatus var. inornatus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17901 Placer Bowman Lake Road, 0.9 mile north of its junction with CA Hwy 20, 0.85 mi. NE (23deg.) of Emigrant Gap and N of I-80 1434 Comment
  RSA0012085  Linanthus ciliatus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17892 Placer 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
  RSA0012138  Juncus effusus var. exiguus George K. Helmkamp, E. A. Helmkamp 2011-7-9 17674 Placer Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  RSA0012160  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2011-7-9 17688 Placer Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road 503 Comment
  RSA0013386  Gilia leptalea subsp. leptalea George K. Helmkamp, E. A. Helmkamp 2010-7-28 16667 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction of Soda Springs Road at Robinson Flat 2040 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
  RSA0028447  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-5-12 17258 Placer south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave. 41 Comment
  RSA0035476  Gilia capitata subsp. mediomontana George K. Helmkamp, Elizabeth A. Helmkamp 2013-6-11 20828 Placer junction of Yankee Jim's Road and Shirttail Canyon Road, NW of Foresthill 463 Comment
  RSA0035674  Hypochaeris glabra George K. Helmkamp, Mary Alice Barnes 2013-5-3 20464 Placer SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road 974 Comment
  RSA0035676  Lupinus bicolor George K. Helmkamp, Mary Alice Barnes 2013-4-18 20342 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0035677  Lupinus nanus George K. Helmkamp, Mary Alice Barnes 2013-4-18 20341 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0035848  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, Mary Alice Barnes 2013-4-18 20348 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0035849  Barbarea orthoceras George K. Helmkamp, Mary Alice Barnes 2013-4-18 20349 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0035850  Lupinus albifrons var. albifrons George K. Helmkamp, Mary Alice Barnes 2013-4-18 20361 Placer Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 ) of Weimar 512 Comment
  RSA0035851  Ceanothus integerrimus George K. Helmkamp, Mary Alice Barnes 2013-4-18 20370 Placer 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
  RSA0036006  Lupinus microcarpus var. densiflorus George K. Helmkamp, Mary Alice Barnes 2013-5-3 20459 Placer Forest Hill Road, 4.8 miles east of its junction with Upper Clementine Lake Road, 10.1 mi. NE (52 ) of Auburn 672 Comment
  RSA0037367  Ranunculus occidentalis George K. Helmkamp, Mary Alice Barnes 2013-4-18 20371 Placer 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
  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
  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
  RSA0038508  Lupinus nanus George K. Helmkamp, Mary Alice Barnes 2013-5-3 20471 Placer Mosquito Ridge Road, 1.1 miles south of Forest Hill Road 962 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
  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
  RSA0039071  Bromus hordeaceus George K. Helmkamp, Mary Alice Barnes 2013-5-3 20474 Placer Mosquito Ridge Road, 1.1 miles south of Forest Hill Road 962 Comment
  RSA0039072  Collomia heterophylla George K. Helmkamp, Mary Alice Barnes 2013-5-3 20473 Placer Mosquito Ridge Road, 1.1 miles south of Forest Hill Road 962 Comment
  RSA0039073  Phacelia imbricata subsp. imbricata George K. Helmkamp, Mary Alice Barnes 2013-4-18 20369 Placer 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
  RSA0039074  Polypodium calirhiza George K. Helmkamp, Mary Alice Barnes 2013-4-18 20367 Placer Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 ) of Weimar 512 Comment
  RSA0039075  Trifolium wormskioldii George K. Helmkamp, Mary Alice Barnes 2013-4-18 20363 Placer Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 ) of Weimar 512 Comment
  RSA0039076  Lupinus benthamii George K. Helmkamp, Mary Alice Barnes 2013-4-18 20362 Placer Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 ) of Weimar 512 Comment
  RSA0039077  Galium aparine George K. Helmkamp, Mary Alice Barnes 2013-5-3 20466 Placer SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road 974 Comment
  RSA0039268  Thysanocarpus curvipes George K. Helmkamp, Mary Alice Barnes 2013-4-18 20338 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0039273  Lomatium dissectum George K. Helmkamp, Mary Alice Barnes 2013-4-18 20336 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0039279  Plagiobothrys stipitatus var. micranthus George K. Helmkamp, Amy Barnes 2013-3-28 20282 Placer along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 Comment
  RSA0039280  Triphysaria eriantha George K. Helmkamp, Amy Barnes 2013-3-28 20285 Placer along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 Comment
  RSA0039281  Lupinus bicolor George K. Helmkamp, Amy Barnes 2013-3-28 20290 Placer northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  RSA0042076  Plectritis macrocera George K. Helmkamp, Mary Alice Barnes 2013-4-18 20347 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0042966  Lepidium campestre George K. Helmkamp, Mary Alice Barnes 2013-4-18 20350 Placer Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax 561 Comment
  RSA0043190  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2010-4-23 15911 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill. 287 Comment
  RSA0045149  Madia glomerata George K. Helmkamp, E. A. Helmkamp 2012-9-25 19919 Placer Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road. 1611 Comment
  RSA0047105  Draperia systyla George K. Helmkamp, E. A. Helmkamp 2009-7-16 15192 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 Comment
  RSA0047364  Phacelia racemosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19239 Placer Foresthill Road, 9.2 miles east of its junction with Devil s Thumb Road 2055 Comment
  RSA0047749  Mimulus guttatus George K. Helmkamp, Mary Alice Barnes 2013-4-18 20377 Placer 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
  RSA0047750  Nemophila heterophylla George K. Helmkamp, Mary Alice Barnes 2013-4-18 20374 Placer 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
  RSA0047901  Polypodium calirhiza George K. Helmkamp, Mary Alice Barnes 2013-4-18 20372 Placer 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
  RSA0051410  Linanthus harknessii George K. Helmkamp, E. A. Helmkamp 2012-6-19 19235 Placer Foresthill Road, 6.9 miles east of its junction with Devil s Thumb Road. 1973 Comment
  RSA0053704  Ceanothus cordulatus G. K. Helmkamp, E. A. Helmkamp 2012-6-19 19222 Placer Northern Sierrra Nevada Mountains: Devil's Thumb Rd (Deadwood Rd), 1.2 mi S of its jct with Foresthill Rd 1648 Comment
  RSA0053705  Kelloggia galioides G. K. Helmkamp, E. A. Helmkamp 2012-6-19 19223 Placer Northern Sierra Nevada Mountains: Devil's Thumb Road (Deadwood Rd.), 1.2 miles S of its junction with Foresthill Road 1648 Comment
  RSA0053709  Aquilegia formosa var. formosa G. K. Helmkamp, E. A. Helmkamp 2012-9-25 19797 Placer Northern Sierra Nevada Mountains along Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  RSA0053710  Galium bolanderi G. K. Helmkamp, E. A. Helmkamp 2012-9-8 19808 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
  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
  RSA0062468  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2012-9-25 19916 Placer Junction of Nyack Road and I-80 in the Emigrant Gap area. 1652 Comment
  RSA0067559  Plantago coronopus George K. Helmkamp, E. A. Helmkamp 2012-3-31 18650 Placer along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 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
  RSA0093628  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2012-6-19 19214 Placer Northern Sierra Nevada Mountains Foothills: Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill. 1052 Comment
  RSA0093629  Penstemon azureus subsp. angustissimus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19208 Placer Northern Sierra Nevada Mountains Foothills. Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road. 820 Comment
  RSA0093828  Limnanthes alba subsp. alba George K. Helmkamp, Amy Barnes 2014-4-23 22812 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
  RSA0093830  Linanthus bicolor George K. Helmkamp, Amy Barnes 2014-4-23 22819 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
  RSA0106510  Hordeum murinum subsp. glaucum George K. Helmkamp, Amy Barnes 2014-3-21 22634 Placer Sacramento Valley: Riosa Road at the east side of its junction with CA-65, just west of Sheridan. 33 Comment
  RSA0107421  Trifolium hirtum George K. Helmkamp, Amy Barnes 2014-3-21 22643 Placer Sacramento Valley: Sheridan, Riosa Road at the west side of its junction with old CA-65. 33 Comment
  RSA0107422  Trifolium willdenovii George K. Helmkamp, Amy Barnes 2014-3-21 22630 Placer Sacramento Valley: Riosa Road at the east side of its junction with CA-65, just west of Sheridan. 33 Comment
  RSA0107826  Gilia capitata subsp. pedemontana George K. Helmkamp, Amy Barnes 2014-4-23 22787 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
  RSA0115330  Elymus caput-medusae George K. Helmkamp, Amy Barnes 2014-3-21 22637 Placer Sacramento Valley: Riosa Road at the east side of its junction with CA-65, just west of Sheridan. 33 Comment
  RSA0115331  Rumex crispus George K. Helmkamp, Amy Barnes 2014-3-21 22639 Placer Sacramento Valley: Sheridan, Riosa Road at the west side of its junction with old CA-65. 33 Comment
  RSA0115333  Layia pentachaeta subsp. pentachaeta George K. Helmkamp, Alice Barnes 2013-4-18 20337 Placer Northern Sierra 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
  RSA0115436  Medicago polymorpha George K. Helmkamp, Elizabeth Helmkamp 2014-2-22 22532 Placer Sierra Nevada Mountains Foothills: North Auburn, corner of Bell Road and Olympic Way, 0.7 mi. west of CA-49. 433 Comment
  RSA714091  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2005-10-1 9988 Placer Northern Sierra Nevada Mts.: NW of Lake Tahoe; Junction of Bear Creek Road and Big John Drive (ca. 2.2 miles west of CA Highway 89 and just south of Alpine Meadows Road) 2015 Comment
  RSA714092  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2005-10-1 9993 Placer Northern Sierra Nevada Mts.: NW of Lake Tahoe; Junction of Bear Creek Road and Big John Drive (ca. 2.2 miles west of CA Highway 89 and just south of Alpine Meadows Road) 2015 Comment
  RSA715287  Rumex acetosella George K. Helmkamp 2005-9-30 9941 Placer Northern High Sierra Mtns: Hampshire Rocks Road S of the I80 Rainbow exit (2 miles E of Cisco Grove) 1805 Comment
  RSA733423  Sanicula crassicaulis George K. Helmkamp, Elizabeth A. Helmkamp 2006-5-13 10455 Placer Northern Sierra Nevada Hills: ca. 4 air mi. NE or Auburn, along the unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road. 422 Comment
  RSA739714  Galium parisiense George K. Helmkamp, E. A. Helmkamp 2007-5-23 12064 Placer Northern Sierra Nevada Mtns.: Humbug Canyon Road, 0.2 miles NW of Forest Hill Rd., generally SW of Westville 1576 Comment
  RSA739784  Triteleia ixioides subsp. anilina George K. Helmkamp, E. A. Helmkamp 2007-5-18 11997 Placer Forest Hill Road, 4.3 miles northeast of the bridge over the junction of North and West Forks of the American River 485 Comment
  RSA739922  Erigeron foliosus var. hartwegii George K. Helmkamp, E. A. Helmkamp 2007-5-30 12194 Placer Northern Sierra Nevada Mtns. Foothills: Mosquito Ridge Road, 15 miles E of its junction with Forest Hll Rd. in Foresthill, S of site of Bake oven 915 Comment
  RSA747124  Juncus chlorocephalus George K. Helmkamp, E. A. Helmkamp 2008-8-20 14035 Placer Soda Springs Road, 1.9 miles south of its junction with Donner Pass Road and beside (completely dry) Serena Creek 2107 Comment
  RSA747125  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2008-8-20 14031 Placer Soda Springs Road, 1.9 miles south of its junction with Donner Pass Road and beside (completely dry) Serena Creek 2107 Comment
  RSA750430  Cornus sericea subsp. sericea George K. Helmkamp, E. A. Helmkamp 2008-8-20 14020 Placer Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  RSA750432  Grindelia squarrosa var. serrulata George K. Helmkamp, E. A. Helmkamp 2008-8-20 14015 Placer Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  RSA750433  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2008-8-20 14013 Placer Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 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
  RSA750702  Eriogonum wrightii var. subscaposum George K. Helmkamp, E. A. Helmkamp 2008-8-20 14023 Placer Donner Pass Road on the west side of Donner Pass and east of Norden. 2149 Comment
  RSA750730  Erigeron inornatus var. inornatus George K. Helmkamp, E. A. Helmkamp 2008-9-15 14101 Placer along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  RSA750890  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2007-9-14 12959 Placer along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  RSA751264  Hypericum concinnum George K. Helmkamp, E. A. Helmkamp 2008-8-20 14033 Placer Soda Springs Road, 1.9 miles south of its junction with Donner Pass Road and beside (completely dry) Serena Creek 2107 Comment
  RSA751291  Perideridia lemmonii George K. Helmkamp, E. Helmkamp 2008-8-20 14032 Placer Soda Springs Road, 1.9 miles south of its junction with Donner Pass Road and beside (completely dry) Serena Creek 2107 Comment
  RSA752668  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2008-4-17 13284 Placer Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  RSA752669  Downingia ornatissima var. ornatissima George K. Helmkamp, E. A. Helmkamp 2008-4-17 13282 Placer Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  RSA752671  Limnanthes alba subsp. alba George K. Helmkamp, E. A. Helmkamp 2008-4-17 13290 Placer Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  RSA755303  Centaurea maculosa George K. Helmkamp, E. A. Helmkamp 2009-8-12 15421 Placer Forest Hill road, 14.0 miles northeast of the city of Foresthill 1564 Comment
  RSA755332  Trifolium incarnatum George K. Helmkamp, E. A. Helmkamp 2009-4-22 14572 Placer Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  RSA755333  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14568 Placer town of Foresthill, along Forest Hill Road 988 Comment
  RSA755334  Cryptantha flaccida George K. Helmkamp, E. Helmkamp 2009-4-22 14561 Placer 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
  RSA755336  Gilia leptalea subsp. bicolor George K. Helmkamp, E. A. Helmkamp 2009-8-12 15446 Placer Forest Hill Road, 26.1 miles northeast of the city of Foresthill 2020 Comment
  RSA755562  Juglans hindsii George K. Helmkamp, E. A. Helmkamp 2009-8-22 15520 Placer along CA-193, 5.3 miles east of Lincoln 123 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
  RSA755619  Amsinckia menziesii var. menziesii George K. Helmkamp, E. Helmkamp 2009-4-22 14581 Placer Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake 732 Comment
  RSA756758  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15214 Placer Forest Hill Road, 26.1 miles northeast of the city of Foresthill, c. 3/4 mi. NW of Sailor Flat 2020 Comment
  RSA756852  Lotus pinnatus George K. Helmkamp, E. A. Helmkamp 2009-7-16 15210 Placer Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  RSA756853  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2009-7-16 15203 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 Comment
  RSA756924  Gilia tricolor subsp. diffusa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14582 Placer Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake 732 Comment
  RSA757089  Eriophyllum lanatum var. grandiflorum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15198 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 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
  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
  RSA757272  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15191 Placer Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  RSA758530  Triphysaria eriantha subsp. eriantha George K. Helmkamp, E. A. Helmkamp 2009-3-11 14386 Placer Ranch House Road, 0.2 mile south of Sheridan 37 Comment
  RSA772289  Phlox gracilis George K. Helmkamp, E. A. Helmkamp 2010-4-17 15902 Placer along CA-49, 2.5 miles southeast of Pilot Hill 271 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
  RSA779398  Apocynum cannabinum George K. Helmkamp, Amy Barnes 2009-7-12 15190 Placer along Todd Valley Road, 0.1 mile south of its junction with Foresthill Road, c. 13 air miles NE of Auburn 854 Comment
  RSA782369  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2010-4-23 15907 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  RSA782370  Geranium molle George K. Helmkamp, E. A. Helmkamp 2010-4-23 15910 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill. 287 Comment
  RSA782371  Medicago polymorpha George K. Helmkamp, E. A. Helmkamp 2010-4-23 15913 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  RSA782377  Silene gallica George K. Helmkamp, E. A. Helmkamp 2010-4-23 15903 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  RSA782386  Geranium molle George K. Helmkamp, E. A. Helmkamp 2010-4-23 15905 Placer along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill. 287 Comment
  RSA782545  Nama lobbii George K. Helmkamp, Amy Barnes 2009-7-12 15186 Placer Along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  RSA782546  Kelloggia galioides George K. Helmkamp, Amy Barnes 2009-7-12 15173 Placer along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 Comment
  RSA7825489  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, Amy Barnes 2009-7-12 15183 Placer Along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  RSA782550  Eriophyllum lanatum var. grandiflorum George K. Helmkamp, Amy Barnes 2009-7-12 15185 Placer Along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  RSA782551  Chlorogalum pomeridianum George K. Helmkamp, Amy Barnes 2009-7-12 15172 Placer along Foresthill Road at the northeast end of the city of Foresthill 985 Comment
  RSA785457  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2010-6-26 16372 Placer junction of Canyon Way and Yankee Jim s Road, east of I-80 between Weimar and Colfax 616 Comment
  RSA785458  Collinsia tinctoria George K. Helmkamp, E. A. Helmkamp 2010-6-26 16369 Placer junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  RSA790110  Lotus nevadensis var. nevadensis George K. Helmkamp, E. A. Helmkamp 2011-7-26 17854 Placer Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 mi. NE (65 deg ) of Emigrant Gap 1590 Comment
  RSA790858  Stipa lettermanii George K. Helmkamp, E. A. Helmkamp 2012-5-11 18959 Placer Finning Mill Road, 4 mi north of Forest Hill Road and at the junction with Hollow Logging Road. 1140 Comment
  RSA790859  Ceanothus tomentosus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18946 Placer Finning Mill Road, 1.2 mi north of its junction with Forest Hill Road. 1104 Comment
  RSA790860  Osmorhiza George K. Helmkamp, E. Helmkamp 2012-5-11 18947 Placer Finning Mill Road, 1.2 mi north of its junction with Forest Hill Road. 1104 Comment
  RSA790861  Agoseris retrorsa George K. Helmkamp, E. A. Helmkamp 2012-5-11 18948 Placer Finning Mill Road, 1.2 mi north of its junction with Forest Hill Road. 1104 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
  RSA791426  Lasthenia glaberrima George K. Helmkamp, E. A. Helmkamp 2011-5-12 17252 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
  RSA791744  Vicia hirsuta George K. Helmkamp, E. A. Helmkamp 2012-5-5 18916 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air miles southest (123 degrees) of Clementine Dam on the American River. 396 Comment
  RSA791745  Claytonia parviflora subsp. grandiflora George K. Helmkamp, E. A. Helmkamp 2012-5-5 18919 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air miles southest (123 degrees) of Clementine Dam on the American River. 396 Comment
  RSA792717  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, E. A. Helmkamp 2011-4-10 17158 Placer along Riosa Road at the east edge of the village of Sheridan 41 Comment
  RSA792718  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2011-4-10 17171 Placer along Riosa Road, 2.3 miles east of Sheridan 43 Comment
  RSA794005  Cardamine pensylvanica George K. Helmkamp, E. A. Helmkamp 2012-2-23 18576 Placer 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
  RSA794812  Erigeron inornatus var. inornatus George K. Helmkamp, E. A. Helmkamp 2011-8-26 18164 Placer Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2020 Comment
  RSA794813  Phlox gracilis George K. Helmkamp, E. A. Helmkamp 2011-8-26 18173 Placer Along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. 2050 Comment
  RSA794814  Gilia leptalea subsp. leptalea George K. Helmkamp, E. A. Helmkamp 2011-8-26 18172 Placer along Forest Hill Road, 0.4 miles west of Robinson Flat. 2041 Comment
  RSA794937  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2011-4-1 17115 Placer along CA-193 (Lincoln-New Castle Hwy), 0.4 mile west of Gold Hill Road, 5.4 miles (air) east of Lincoln 108 Comment
  RSA795075  Eriogonum marifolium George K. Helmkamp, E. A. Helmkamp 2011-8-26 18189 Placer Along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. 2050 Comment
  RSA795076  Ipomopsis aggregata subsp. formosissima George K. Helmkamp, E. A. Helmkamp 2011-8-26 18180 Placer Along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. 2050 Comment
  RSA795079  Sidalcea glaucescens George K. Helmkamp, E. A. Helmkamp 2011-8-26 18182 Placer Along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. 2050 Comment
  RSA795082  Collomia tinctoria George K. Helmkamp, E. A. Helmkamp 2011-8-26 18169 Placer along Forest Hill Road, 0.4 miles west of Robinson Flat. 2041 Comment
  RSA795084  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2011-8-26 18171 Placer along Forest Hill Road, 0.4 miles west of Robinson Flat 2041 Comment
  RSA795178  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-5-12 17253 Placer south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave. 41 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
  RSA795366  Whitneya dealbata George K. Helmkamp, E. A. Helmkamp 2010-8-14 16778 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
  SBBG120611  Clarkia biloba G. K. Helmkamp with E. A. Helmkamp 2006-6-14 10708 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
  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
  SBBG122297  Limnanthes alba G. K. Helmkamp with E. A. Helmkamp 2008-4-17 13290 Placer Sacramento Valley Ranch House Rd, 0.2 mi SE of Sheridan 37 Comment
  SBBG122299  Lupinus bicolor G. K. Helmkamp with E. A. Helmkamp 2008-4-17 13296 Placer ca. 0.2 mi N of St Hwy 193 on Fowler Rd, ca. 6 mi E of Lincoln 92 Comment
  SBBG123109  Heuchera micrantha G. K. Helmkamp with E. A. Helmkamp 2007-5-30 12193 Placer Mosquito Ridge Rd, 15 mi E of its jct with Forest Hill Rd in Foresthill, S of site of Bake Oven 915 Comment
  SBBG123118  Poteridium annuum G. K. Helmkamp with E. A. Helmkamp 2007-9-14 12959 Placer Mosquito Ridge Rd 0.4 mi E of Foresthill 942 Comment
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Mar 30 2014
  SBBG128601  Lasthenia glaberrima G. K. Helmkamp, E. A. Helmkamp 2011-5-12 17252 Placer S of Lincoln along Athens Ave, 1.6 mi E of Fiddyment Rd, 0.6 mi W of Industrial Ave 41 Comment
  SBBG128602  Plagiobothrys undulatus G. K. Helmkamp, E. A. Helmkamp 2011-5-12 17255 Placer S of Lincoln along Athens Ave, 1.6 mi E of Fiddyment Rd, 0.6 mi W of Industrial Ave 41 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
  SBBG128840  Limnanthes floccosa subsp. californica G. K. Helmkamp, E. A. Helmkamp 2011-4-10 17151 Placer Riosa Rd at the E edge of the village of Sheridan, Sacramento Valley 41 Comment
  SBBG128841  Hemieva ranunculifolia G. K. Helmkamp, E. A. Helmkamp 2010-8-14 16779 Placer American Hill Rd, (Forest Route 13), 4.7 mi S of its jct with Foresthill Rd and just S of a crk crossing 1552 Comment
  SBBG128854  Ranunculus bonariensis var. trisepalus G. K. Helmkamp, E. A. Helmkamp 2011-5-12 17253 Placer S of Lincoln along Athens Ave, 1.6 mi E of Fiddyment Rd, 0.6 mi W of Industrial Ave 41 Comment
  SBBG133755  Vicia hirsuta G. K. Helmkamp, E. A. Helmkamp 2012-5-5 18916 Placer Lake Clementine Rd, 1.2 mi W of its jct with Foresthill Rd, 0.3 air mi SE (123 deg) of Clementine Dam on the American River 396 Comment
  SD146164  Galium bifolium G. K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5021 A Placer Northern Sierra Nevada Range: N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  SD212468  Eurybia integrifolia G. K. Helmkamp, Elizabeth Helmkamp 2005-9-30 9948 Placer Northern High Sierra Mountains; junction of Chalet and Alpine Meadows Roads west of CA-89 (near Alpine ski area). 2081 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
  SD212628  Vicia villosa subsp. varia G. K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10132 Placer Northeast edge of Sacramento metropolitn area; Sierra College Road and King Ranch Road southsoutheast of Rocklin. 121 Comment
  SD212643  Philadelphus lewisii G. K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10705 Placer 0.2 mile north of Forest Hill Road on unnamed road to Lake Clementine. 487 Comment
  SD212687  Eriogonum wrightii var. subscaposum G. K. Helmkamp, Elizabeth Helmkamp 2005-9-30 9935 Placer Northern High Sierra Mountains: Hampshire Rocks Road South of the I-80 Rainbow exit, circa 2 miles East of Cisco Grove. 1805 Comment
  SD234284  Brickellia californica G. K. Helmkamp, E. A. Helmkamp 2007-9-14 12961 Placer Foothills, norhtern Sierra Nevada Mountains: along Mosquito Ridge Road 6 miles east of Foresthill. 609 Comment
  SD234291  Cirsium occidentale var. californicum G. K. Helmkamp, E. A. Helmkamp 2007-5-30 12200 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
  SD234327  Solidago canadensis subsp. elongata G. K Helmkamp, E. A. Helmkamp 2007-9-14 12964 Placer Foothills, northern Sierra Nevada Mountains: along Mosquito Ridge Road 15 miles E of Foresthill (Michigan Bluff 7.5' Q) 832 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
  SD234506  Potentilla glandulosa subsp. glandulosa G. K. Helmkamp, E. A. Helmkamp 2007-5-30 12196 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
  SD234516  Boykinia occidentalis G. K. Helmkamp, E. A. Helmkamp 2007-5-30 12191 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River. 800 Comment
  SD234517  Heuchera micrantha G. 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
  SD234525  Erythranthe guttata G. K. Helmkamp, E. A. Helmkamp 2007-5-30 12183 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River. 800 Comment
  SD234803  Ericameria nauseosa var. speciosa G. K. Helmkamp, E. A. Helmkamp 2008-8-20 14029 Placer Northern Sierra Nevada Mountains: Donner Pass Road on the west side of Donner Pass and east of Norden (Norden 7.5'Q) 2149 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
  SD234897  Monardella odoratissima subsp. pallida G. K. Helmkamp, E. A. Helmkamp 2008-8-20 14030 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
  SD234988  Eriogonum nudum var. oblongifolium G. K. Helmkamp, E. A. Helmkamp 2007-9-14 12960 Placer Foothills, Northern Sierra Nevada Mountains: along Mosquito Ridge Road 6 miles east of Foresthill (Foresthill 7.5' Q) 609 Comment
  SD235010  Prunus emarginata G. K. Helmkamp, E. A Helmkamp 2008-8-20 14028 Placer Northern Sierra Nevada Mountains: Donner Pass Road on the west side of Donner Pass and East of Norden (Norden 7.5' Q) 2149 Comment
  SD235015  Galium bolanderi G. K. Helmkamp, E. A. Helmkamp 2006-8-11 11214 Placer Northern Sierra Nevada Mtns foothills: along Forest Hill Rd., 8.7 miles northeast of Forest Hill. 1310 Comment
  SD235031  Cordylanthus tenuis subsp. tenuis G. K. Helmkamp, E. A. Helmkamp 2006-8-11 11212 Placer Northern Sierra Nevada Mtns. Foothills: along Forest Hill Rd., 8.7 miles northeast of Forest Hill. 1310 Comment
  SD236125  Brodiaea minor G. K. Helmkamp, E. A. Helmkamp 2008-4-17 13284 Placer Sacramento Valley: Ranch House Road, 0.2 mile southeast of Sheridan 36 Comment
  SD236128  Triteleia hyacinthina G. K. Helmkamp, E. A. Helmkamp 2008-4-17 13295 Placer Sacramento Valley: Ranch House Road, 0.2 mile southeast of Sheridan 36 Comment
  SD236255  Downingia ornatissima var. ornatissima G. K. Helmkamp, E. A. Helmkamp 2008-4-17 13282 Placer Sacramento Valley: Ranch House Road, 0.2 mile southeast of Sheridan (Lincoln 7.5'Q) 36 Comment
  SD236324  Limnanthes alba subsp. alba G. K. Helmkamp, E. A. Helmkamp 2008-4-17 13290 Placer Sacramento Valley: Ranch House Road, 0.2 mile southeast of Sheridan 36 Comment
  SD237259  Veratrum californicum var. californicum G. K. Helmkamp, E. A. Helmkamp 2009-7-16 15234 Placer Sierra Nevada Mountains: Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads. 2107 Comment
  SD237288  Lomatium utriculatum G. K. Helmkamp, E. A. Helmkamp 2009-5-7 14628 Placer Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 13.6 miles east of its junction with Forrest Hill Road in Foresthill. 771 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
  SD237340  Madia elegans subsp. vernalis G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15935 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River. 156 Comment
  SD237342  Matricaria discoidea G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15919 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mi. north of the American River crossing. 199 Comment
  SD237343  Micropus californicus var. californicus G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15918 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mi. north of the American River crossing. 199 Comment
  SD237383  Arabidopsis thaliana G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15929 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls Crossing of the American River (Pilot Hill 7.5'Q) 156 Comment
  SD237393  Streptanthus tortuosus G. K. Helmkamp, E. A. Helmkamp 2009-5-7 14622 Placer Sierra Nevada Mountains Foothills: Oxbow road, 2.0 miles south of its junction with Mosquito Ridge Road; north edge of Oxbow Reservoir (Michigan Bluff 7.5'Q) 402 Comment
  SD237399  Petrorhagia dubia G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15934 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5'Q) 156 Comment
  SD237401  Silene gallica G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15903 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q) 287 Comment
  SD237402  Spergula arvensis subsp. arvensis G. K. Helmkamp, E. A. Helmkamp 2009-3-11 14385 Placer Sacramento Valley: Ranch House Road, 0.2 mile south of Sheridan (Lincoln 7.5'Q) 36 Comment
  SD237422  Cytisus scoparius G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15930 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River. 156 Comment
  SD237433  Lupinus benthamii G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15908 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q) 287 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
  SD237441  Lupinus nanus G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15932 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5'Q) 156 Comment
  SD237450  Trifolium campestre G. K. Helmkamp, E. A. Helmkamp 2009-5-7 14619 Placer Sierra Nevada Mountains Foothills: Oxbow Road, 2.0 miles south of its junction with Mosquito Rodge Road; north edge of Oxbow Reservoir (Michigan Bluff 7.5'Q) 402 Comment
  SD237452  Trifolium hirtum G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15933 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5'Q) 156 Comment
  SD237453  Trifolium hirtum G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15907 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q) 287 Comment
  SD237456  Vicia hirsuta G. K. Helmkamp, E. A. Helmkamp 2012-5-5 18916 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mile SE (123a^z) of Clementine Dam on the American River (Auburn 7.5'Q) 395 Comment
  SD237457  Vicia sativa subsp. sativa G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15920 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mile north of the American River crossing (Pilot Hill 7.5'Q) 199 Comment
  SD237460  Geranium dissectum G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15904 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q) 287 Comment
  SD237462  Geranium molle G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15910 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q) 287 Comment
  SD237463  Geranium molle G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15905 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q) 287 Comment
  SD237484  Juglans hindsii G. K. Helmkamp, E. A. Helmkamp 2009-8-22 15520 Placer Sacramento Valley; along CA-193, 5.3 miles east of Lincoln (Gold Hill 7.5'Q) 123 Comment
  SD237536  Gayophytum diffusum subsp. parviflorum G. K. Helmkamp, Amy Barnes 2009-7-12 15183 Placer Sierra Nevada Mountains Foothills: along Forestill Road 10.3 miles northeast of the town of Foresthill. 1370 Comment
  SD237576  Claytonia parviflora subsp. grandiflora G. K. Helmkamp, E. A. Helmkamp 2012-5-5 18919 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mile SE (123a^z) of Clementine Dam on the American River (Auburn 7.5'Q) 395 Comment
  SD237579  Aquilegia formosa G. K. Helmkamp, Amy Barnes 2009-7-12 15180 Placer Sierra Nevada Mountains Foothills: along Foresthill Road 10.3 miles northeast of the town of Foresthill (Michigan Bluff 7.5'Q) 1370 Comment
  SD237580  Ranunculus hystriculus G. K. Helmkamp, E. A. Helmkamp 2009-5-7 14630 Placer Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill (Michigan Bluff 7.5'Q) 771 Comment
  SD237590  Horkelia tridentata var. tridentata G. K Helmkamp, Amy Barnes 2009-7-12 15178 Placer Sierra Nevada Mountains Foothills: along Foresthill Road, 10.3 miles northeast of the town of Foresthill (Michigan Bluff 7.5'Q) 1370 Comment
  SD237601  Kelloggia galioides G. 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 (Michigan Bluff 7.5'Q) 1230 Comment
  SD237608  Castilleja lineariloba G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15915 Placer Sierra Nevada Mountains Foothills: along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mile north of the American River crossing (Pilot Hill 7.5'Q) 199 Comment
  SD237613  Collinsia tinctoria G. K. Helmkamp, E. A. Helmkamp 2010-6-26 16369 Placer Sierra Nevada Mountains Foothills: juncton of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax (Colfax 7.5'Q) 616 Comment
  SD237614  Cordylanthus tenuis subsp. tenuis G. K. Helmkamp, E. A. Helmkamp 2007-6-27 12629 Placer Sierra Nevada Mountains Foothills: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 (Cisco Grove 7.5'Q) 1744 Comment
  SD237617  Diplacus aurantiacus G. K. Helmkamp, E. A. Helmkamp 2010-4-23 15931 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot 7.5'Q) 156 Comment
  SD237620  Diplacus torreyi G. K. Helmkamp, E. A. Helmkamp 2009-7-16 15196 Placer Sierra Nevada Mountains: Foresthill Road, 20.3 miles northeast of the city of Foresthill (Duncan Peak 7.5'Q) 1704 Comment
  SD237622  Diplacus torreyi G. K. Helmkamp, E. A. Helmkamp 2009-8-12 15425 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles ortheast of the city of Foresthill (Duncan Peak 7.5'Q) 1662 Comment
  SD237626  Penstemon laetus subsp. leptosepalus G. K. Helmkamp, Amy Barnes 2009-7-12 15181 Placer Sierra Nevada Mountains Foothills: along Foresthill Road 10.3 miles northeast of the town of Foresthill (Michigan Bluff 7.5'Q). 1370 Comment
  SD239494  Luzula macrantha George K Helmkamp, E. A. Helmkamp 2012-5-5 18937 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road (Georgetown 7.5'Q) 779 Comment
  SD239541  Poa secunda George K. Helmkamp, E. A. Helmkamp 2012-5-5 18932 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road (Georgetown 7.5'Q) 779 Comment
  SD239555  Sanicula bipinnata 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 (Georgetown 7.5'Q) 779 Comment
  SD239773  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2012-5-5 18935 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road. 779 Comment
  SD239841  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
  SD239866  Polygonum phytolaccifolium G. K. Helmkamp, E. A. Helmkamp 2007-7-27 12634 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstat-80 (Cisco Grove 7.5'Q) 1744 Comment
  SD239889  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18934 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road (Georgetown 7.5'Q) 779 Comment
  SD239890  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2012-5-11 18956 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road 1.7 miles north of its junction with Forest Hill Road (Foresthill 7.5'Q) 1041 Comment
  SD239922  Penstemon azureus var. azureus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17856 Placer Northern Sierraa Nevada Mountains: Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 me. NE (65a^z) of Emigrant Gap. Slope above Fulda Creek. 1590 Comment
  SD239954  Viola sheltonii George K. Helmkamp, E. A. Helmkamp 2012-5-11 18957 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 4.0 miles north of Forest Hill Road and the junction with Hollow Logging Road. 1139 Comment
  SD240790  Calochortus monophyllus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18958 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 (Foresthill 7.5'Q) 1139 Comment
  SD240795  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, E. A. Helmkamp 2010-4-17 15880 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junctio with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 313 Comment
  SD240798  Triteleia ixioides subsp. scabra George K. Helmkamp, E. A. Helmkamp 2010-4-17 15898 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 308 Comment
  SD240808  Koeleria gerardi George K. Helmkamp, E. A. Helmkamp 2010-4-23 15916 Placer Sierra Nevada Mountain Foothills: along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mi. north of the American River crossing (Pilot Hill 7.5'Q) 199 Comment
  SD240858  Erigeron inornatus var. inornatus G. K. Helmkamp, E. A. Helmkamp 2007-8-1 12645 Placer Northern Sierra Nevada Mountains: Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border. 2150 Comment
  SD240933  Plagiobothrys undulatus George K Helmkamp, E. A. Helmkamp 2011-5-12 17255 Placer Southern Sacramento Valley: south of Lincoln along Athens Ave., 1.6 miles east of Fiddyment Road, 0.6 mile west of Industrual Ave. (Roseville 7.5'Q) 41 Comment
  SD240950  Sisymbrium officinale George K. Helmkamp, E. A. Helmkamp 2010-4-17 15875 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 313 Comment
  SD240985  Euphorbia crenulata George K. Helmkamp, E. A. Helmkamp 2012-5-11 18943 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road (Foresthill 7.5'Q) 1103 Comment
  SD241008  Lathyrus nevadensis var. nevadensis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18930 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley road, 1.2 miles south of its junction with Foresthill Road. 779 Comment
  SD241010  Lupinus benthamii G. K. Helmkamp, E. A. Helmkamp 2010-4-17 15894 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area. 305 Comment
  SD241011  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2012-3-31 18668 Placer Northern Sierra Nevada Mountains Foothills: Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing. 257 Comment
  SD241039  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-5-12 17258 Placer Southern Sacramento Valley: south of Lincolnalong Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mile west of Industrial Ave. (Roseville 7.5'Q) 41 Comment
  SD241060  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 miles NE (65a^z) of Emigrant Gap (Blue Canyon 7.5'Q) 484 Comment
  SD241110  Clarkia biloba subsp. brandegeeae George K. Helmkamp, E. A. Helmkamp 2011-7-9 17689 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road (Michigan Bluff 7.5'Q) 502 Comment
  SD241117  Eschscholzia caespitosa George K. Helmkamp, E. A. Helmkamp 2012-3-31 18663 Placer Sacramento Valley: along CA-193, 0.3 mile northwest of its junction with Gold Hill Road (Gold Hill 7.5'Q) 131 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
  SD241131  Leptosiphon bicolor George K. Helmkamp, E. A. Helmkamp 2010-4-17 15899 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q). 308 Comment
  SD241161  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 mile west of Industrial Ave. (Roseville 7.5'Q) 41 Comment
  SD241177  Galium murale George K. Helmkamp, E. A. Helmkamp 2010-4-17 15881 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 313 Comment
  SD241183  Castilleja foliolosa George K. Helmkamp, E. A. Helmkamp 2010-4-17 15893 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 8.0 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 321 Comment
  SD241187  Collinsia heterophylla George K. Helmkamp, E. A. Helmkamp 2010-4-17 15897 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 308 Comment
  SD241188  Collinsia tinctoria George K. Helmkamp, E. A. Helmkamp 2011-7-9 17687 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road (Michigan Bluff 7.5'Q) 502 Comment
  SD241190  Penstemon azureus var. angustissimus George K. Helmkamp, E. A. Helmkamp 2011-7-9 17683 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 1.6 miles southeast of its junction with Foresthill Road (Foresthill 7.5'Q) 883 Comment
  SD241198  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, E. A. Helmkamp 2011-4-10 17174 Placer Sacramento Valley: 2 miles east of Hwy 65 in Lincoln, along CA-193 just west of the junction with Stardust Lane (Lincoln 7.5'Q) 75 Comment
  SD241199  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, E. A. Helmkamp 2011-4-10 17158 Placer Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan (Lincoln 7.5'Q) 41 Comment
  SD241652  Triteleia laxa George K Helmkamp, E. A. Helmkamp 2010-4-17 15889 Placer Sierra Nevada Mountins Foothills: Rattlesnake Bar Road, 4.2 miles southwest of its junction with CA-49 naer Pilot Hill (Pilot Hill 7.5'Q) 359 Comment
  SD241775  Amsinckia intermedia G. K. Helmkamp, E. A. Helmkamp 2010-4-17 15895 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area. 305 Comment
  SD241814  Medicago polymorpha G. K Helmkamp, E. A. Helmkamp 2010-4-17 15879 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 313 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
  SD241824  Vicia sativa G. K. Helmkamp, E. A. Helmkamp 2010-4-17 15887 Placer Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 4.2 mils southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 359 Comment
  SD241827  Geranium molle G. K. Helmkamp, E. A. Helmkamp 2012-3-31 18648 Placer Sacramento Valley: along CA-193, 0.1 mile west of its junction with Sierra College Blvd. (Gold Hill 7.5'Q) 88 Comment
  SD241936  Aquilegia formosa George K Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19797 Placer Northern Sierra Nevada Mountains: along Forest Hill Road at junction with Hidden Treasure Road, ca. 0.4 mile NE of Sugar Pine Road (Michigan Bluff 7.5'Q) 1384 Comment
  SD241940  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2010-4-17 15888 Placer Siera Nevada Mountains Foothills: Rattleshake Bar Road, 4.2 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 359 Comment
  SD241942  Ceanothus integerrimus George K. Helmkamp, E. A. Helmkamp 2010-4-17 15900 Placer Siera Nevada Mountains Foothills: Rattleshake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q) 308 Comment
  SD241947  Galium bolanderi George K Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19808 Placer Northern Sierra Nevada Mountains: along Forst Hill Road, 10.4 miles northeast of Hidden Treasure Road, 0.45 mile ESE of Whisky Hill (Duncan Peak 7.5'Q) 1677 Comment
  SD243044  Juncus ensifolius George K. Helmkamp, E. A. Helmkamp 2011-8-26 18179 Placer Northern Sierra Nevada Mountains: along Forrest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. Wet area below a rocky seep. 2050 Comment
  SD243045  Calochortus leichtlinii George K. Helmkamp, E. A. Helmkamp 2010-7-28 16672 Placer Northern Sierra Nevada Mountains: Soda Springs Road, 0.3 mile north of its junction with Forest Hill Road at Robinson Flat. 2024 Comment
  SD243046  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp 2011-4-10 17153 Placer Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan. 41 Comment
  SD243049  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
  SD243059  Angelica breweri George K. Helmkamp, E. A. Helmkamp 2010-7-28 16680 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.8 miles east of Forest Route 13 / American Hill Road. Burn area north of the road. 1662 Comment
  SD243064  Scandix pecten-veneris George K. Helmkamp, E. A. Helmkamp 2011-4-10 17138 Placer Saacramento Valley: east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road. 98 Comment
  SD243066  Anaphalis margaritacea George K. Helmkamp, E. A. Helmkamp 2010-8-14 16792 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 (Duncan Peak 7.5'Q) 1552 Comment
  SD243067  Eucephalus breweri George K. Helmkamp, E. A. Helmkamp 2011-8-26 18164 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill (Duncan Peak 7.5'Q) 2020 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
  SD243075  Centaurea stoebe subsp. micranthos George K. Helmkamp, E. A. Helmkamp 2011-8-26 18159 Placer Northern Sierra Nevada Mountains Foothills: Forest Hill Road, 3.5 miles east of its junction with Mesquite Road in the city of Foresthill (Michigan Bluff 7.5'Q) 1402 Comment
  SD243095  Hieracium albiflorum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16635 Placer Northern Sierra Nevada Mountains Foothills: Forest Route 10 (Sugar Pine Road) 0.8 mile north of its junction with Forest Hill Road, 8.2 miles NE (34a^z) of Foresthill (Michigan Bluff 7.5'Q) 1310 Comment
  SD243104  Stephanomeria lactucina George K. Helmkamp, E. A. Helmkamp 2011-8-26 18176 Placer Northern Sierra Nevada Mountains: Robinson Flat, 0.1 mile sout of the campground at Forest Hill Road (Duncan Peak 7.5'Q) 2061 Comment
  SD243105  Whitneya dealbata George K. Helmkamp, E. A. Helmkamp 2010-8-14 16778 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 (Duncan Peak 7.5'Q) 1552 Comment
  SD243117  Silene douglasii George K. Helmkamp, E. A. Helmkamp 2010-8-14 16772 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 (Duncan Peak 7.5'Q) 1552 Comment
  SD243143  Trifolium depauperatum var. depauperatum George K. Helmkamp, E. A. Helmkamp 2011-4-10 17154 Placer Sacremaento Valley: along Riosa Road at the east edge of the village of Sheridan (Lincoln 7.5'Q) 41 Comment
  SD243147  Vicia americana subsp. americana George K. Helmkamp, E. A. Helmkamp 2010-7-28 16637 Placer Northern Sierra Nevada Mountains Foothills: Forest Route 10 (Sugar Pine Road), 0.8 mile north of its junction with Forest Hill Road, 8.2 miles NE (34a^z) of Foresthill (Michigan Bluff 7.5'Q) 1310 Comment
  SD243149  Vicia villosa subsp. villosa George K. Helmkamp, E. A. Helmkamp 2011-4-10 17147 Placer Sacramento Valley: east of Sheridan just north of the juncxtion of North Kilaga Springs Road and Kilaga Springs Road (Lincoln 7.5'Q) 98 Comment
  SD243150  Chrysolepis sempervirens George K. Helmkamp, E. A. Helmkamp 2010-8-14 16768 A Placer Northern Sierra Nevada Mountains:Deadwood Riad, 1.2 miles south of its junction with Forest Hill Road (Westville 7.5'Q) 1563 Comment
  SD243152  Geranium molle George K. Helmkamp, E. A. Helmkamap 2011-4-10 17135 Placer Sacramento Valley: east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road. 98 Comment
  SD243155  Draperia systyla George K. Helmkamp, E. A. Helmkamp 2010-8-14 16777 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. Wet area shaded by a rock bank. 1552 Comment
  SD243157  Nama lobbii George K. Helmkamp, E. A. Helmkamp 2010-7-28 16641 Placer Northern Sierra Nevada Mountains: Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road. 1566 Comment
  SD243158  Nama lobbii George K. Helmkamp, E. A. Helmkamp 2010-8-14 16801 Placer Northern Sierra Nevada Mountains: American Hill Road, 1.2 miles south of its junction with Foresthill Road. 1566 Comment
  SD243160  Phacelia hastata var. hastata George K. Helmkamp, E. A. Helmkamp 2010-7-28 16655 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 22 miles northeast of the city of Foresthill. 2041 Comment
  SD243161  Phacelia hydrophylloides George K. Helmkamp, E. A. Helmkamp 2010-7-28 16662 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 22 miles northeast of the city of Foresthill. 2041 Comment
  SD243163  Phacelia mutabilis George K. Helmkamp, E. A. Helmkamp 2011-8-26 18175 Placer Northern Sierra Nevada Mountains: Robinson Flat, 0.1 mile south of the campground at Forest Hill Road. Open rocky flat. 2061 Comment
  SD243166  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2011-8-26 18168 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill. 2020 Comment
  SD243167  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2010-8-14 16771 Placer Northern Sierra Nevada Mountains: Deadwood Road, 1.2 miles south of its junction with Forest Hill Road. Roadside bank. 1563 Comment
  SD243171  Limnanthes floccosa subsp. californica George K. Helmkamp, E. A. Helmkamp 2011-4-10 17151 Placer Sacramento Valley: along Riosa road at the east edge of the village of Sheridan. 41 Comment
  SD243177  Navarretia leptalea subsp. leptalea George K. Helmkamp, E. A. Helmkamp 2010-7-28 16667 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs road at Robinson Flat. Roadside. 2040 Comment
  SD243180  Eriogonum lobbii var. lobbii George K. Helmkamp, E. A. Helmkamp 2010-7-28 16668 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat. 2040 Comment
  SD243181  Eriogonum marifolium George K. Helmkamp, E. A. Helmkamp 2011-8-26 18189 Placer Northern Sierrra Nevada Mountains: along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. 2050 Comment
  SD243197  Rubus laciniatus George K. Helmkamp, E. A. Helmkamp 2010-8-11 16752 Placer Northern Sierra Nevada Mountains: Finning Mill Road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek. 1085 Comment
  SD243199  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2010-8-11 16753 Placer Northern Sierra Nevada Mountains: Finning Mill Road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek. 1085 Comment
  SD243203  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2010-7-28 16649 Placer Northern Sierra Nevada Mountains: Forest Hill Road at Hidden Treasure Road, 10.4 miles northeast of the city of Foresthill. 1384 Comment
  SD243209  Diplacus mephiticus George K. Helmkamp, E. A. Helmkamp 2010-7-28 16679 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.8 miles east of Forest Route 13 / American Hill Road. Burned area north of road. 1662 Comment
  SD243211  Penstemon laetus subsp. laetus George K. Helmkamp, E. A. Helmkamp 2011-8-26 18160 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 3.6 miles east of its junction with Mesquite Road in the city of Foresthill. 1402 Comment
  SD243214  Chamaesaracha nana George K. Helmkamp, E. A. Helmkamp 2011-8-26 18185 Placer Northern Sierra Nevada Mountains: along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat. Rocky flat at roadside. 2050 Comment
  SD244239  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2012-6-19 19223 Placer Northern Sierra Nevada Mountains: Devil's Thumb Road [Deadwood Road], 1.2 miles south of its junction with Foresthill Road (Westville 7.5') 1648 Comment
  SD247276  Triteleia ixioides subsp. scabra George K. Helmkamp, Elizabeth Helmkamp 2012-6-19 19236 Placer Northern Sierra Nevada Moutains: Foresthill Road, 6.9 miles east of its junction with Devil's Thumb Road (Duncan Peak 7.5'Q) 1972 Comment
  SD247280  Agrostis stolonifera George K. Helmkamp, Elizabeth Helmkamp 2012-9-25 19904 Placer Northern Sierra Nevada Moutains: Blue Canyon Road, 1.1 miles south of tis intersection with I-80, c. 1/2 mile south of Blue Canyon-Nyack airport (Blue Canyon 7.5'Q) 1473 Comment
  SD247326  Gnaphalium palustre George K. Helmkamp, E. A. Helmkamp 2012-9-25 19905 Placer Northern Sierra Nevada Mountains: Blue Canyon Road, 1.1 miles south of its intersection with I-80, about 1/2 mile south of Blue Canyon-Nyack Airport. 1473 Comment
  SD247338  Matricaria discoidea George K. Helmkamp, Amy Barnes 2013-3-28 20289 Placer Eastern Sacramento Valley: northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan. 35 Comment
  SD247346  Pseudognaphalium beneolens George K. Helmkamp, E. A. Helmkamp 2012-9-25 19906 Placer Northern Sierra Nevada Mountains: Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon - Nyack Airport. 1473 Comment
  SD247377  Erysimum capitatum var. perenne George K. Helmkamp, E. A. Helmkamp 2012-6-19 19249 Placer Northern Sierra Nevada Mountains: Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road. 2040 Comment
  SD247379  Lepidium strictum George K. Helmkamp, Amy Barnes 2013-3-28 20288 Placer Eastern Sacramento Valley: northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan. 35 Comment
  SD247390  Silene invisa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19230 Placer Northern Sierra Nevada Mountains: Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road. 1671 Comment
  SD247399  Chenopodium desiccatum 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
  SD247414  Acmispon americanus var. americanus George Helmkamp, E. A. Helmkamp 2012-9-25 19917 Placer Northern Sierra Nevada Mountains: junction of Nyack Road and I-80 in the Emigrant Gap area (Blue Canyon 7.5'Q) 1652 Comment
  SD247426  Medicago polymorpha George Helmkamp 2013-3-1 20149 Placer Sacramento Valley: Ranch House Road, 0.6 mile southeast of Riosa Road in Sheridon (Lincoln 7.5'Q) 36 Comment
  SD247433  Trifolium subterraneum George Helmkamp 2013-3-1 20151 Placer Sacramento Valley: Ranch Hose Road, 0.6 mile southeast of Riosa Road in Sheridan (Lincoln 7.5'Q) 36 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
  SD247441  Ribes nevadense George Helmkamp, E. A. Helmkamp 2012-9-25 19902 Placer Northern Sierra Nevada Mountains: Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mile south of Blue Canyon-Nyack Airport (Blue Canyon 7.5'Q) 1473 Comment
  SD247443  Draperia systyla George K. Helmkamp, E. A. Helmkamp 2012-6-19 19250 Placer Northern Sierra Nevada Mountains: Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road (Duncan Peak 7.5'Q) 2040 Comment
  SD247445  Phacelia racemosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19239 Placer Northern Sierra Nevada Mountains: Foresterhill Road, 9.2 miles east of its junction with Devil's Thumb Road (Duncan Peak 7.5'Q) 2054 Comment
  SD247447  Lamium purpureum George K. Helmkamp, E. A. Helmkamp 2013-4-13 20333 Placer Northern Sierra Nevada Mountains Foothills: Cramer Road at the junction with CA-49, north of Auburn (Auburn 7.5'Q) 412 Comment
  SD247463  Clarkia biloba subsp. biloba George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20827 Placer Northern Sierra Nevada Mountains Foothills: junction of Yankee Jim's Road and Shirttail Canyon Road, NW of Foresthill (Colfax 7.5'Q) 462 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
  SD247491  Calyptridium monospermum George K. Helmkamp, Elizabeth Helmkamp 2012-6-19 19228 Placer Northern Sierra Nevada Mountains: Foresthill Hroad, 1.7 miles east of its juncton with Devil's Thumb Road (Duncan Peak 7.5'Q) 1671 Comment
  SD247495  Potentilla glandulosa subsp. glandulosa George K. Helmkamp, Elizabeth Helmkamp 2012-6-19 19238 Placer Northern Sierra Nevada Mountains: Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road (Duncan Peak 7.5'Q) 2054 Comment
  SD247498  Sanguisorba minor subsp. muricata George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20802 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road (Foresthill 7.5'Q) 768 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
  SD247520  Viola tomentosa George K. Helmkamp, Elizabeth A. Helmkamp 2012-6-19 19224 Placer Northern Sierra Nevada Mountains: Devil's Thumb Road [Deadwood Road], 1.2 miles south of its junction with Foresthill Road (Westville 7.5'Q) 1648 Comment
  SD248289  Triteleia hyacinthina George Helmkamp, Amy Barnes 2013-3-28 20281 Placer Eastern 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
  SD248316  Sanicula crassicaulis George K. Helmkamp, Elizabeth Helmkamp 2013-6-11 20806 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim's road, 3.6 miles northwest of its junction with Forest Hill Road. 768 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
  SD248357  Plagiobothrys stipitatus var. micranthus George K. Helmkamp 2013-3-28 20282 Placer Eastern Sacramento Valley: along 10th Street/Ranch House Road, 0.6 mile south of its juncton with Riosa Road in Sheriden (Lincoln 7.5'Q) 42 Comment
  SD248416  Trifolium depauperatum var. depauperatum George K. Helmkamp, Amy Barnes 2013-3-28 20280 Placer Eastern Sacramento Valley; along 10th street/Ranch House Road, 0.6 mile south of its junction with Riosa Road in Sheridan. 42 Comment
  SD248417  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. 961 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
  SD248424  Lupinus albifrons var. albifrons George K. Helmkamp, Mary Alice Barnes 2013-4-18 20361 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 miles ENE of Weimar. 512 Comment
  SD248426  Lupinus bicolor George K. Helmkamp, Amy Barnes 2013-3-28 20290 Placer Eastern Sacramento Valley: Northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan. 35 Comment
  SD248465  Eschscholzia caespitosa George K. Helmkamp, Elizabeth A. Helmkamp 2007-3-25 11709 Placer Foothills, Northern Sierra Nevada Mountains: Forest Hill Road, 0.9 mile east of its juncton with CA-49 at the bridge of the junction of American River forks (Auburn 7.5'Q) 287 Comment
  SD248478  Eriogonum nudum var. oblongifolium George K. Helmkamp, Elizabeth A. Helmkamp 2012-9-25 19916 Placer Northern Sierra Nevada Mountains: junction of Nyack Road and I-80 in the Emigrant Gap area (Blue Canyon 7.5'Q) 1652 Comment
  SD248499  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, Amy Barnes 2013-3-28 20297 Placer Eastern Sacramento Valley: northwest side of junctionof Riosa Road and Andressen Road, northeast of Sheridan. 35 Comment
  SD254628  Trifolium pratense George K. Helmkamp, Elizabeth Helmkamp 2013-10-14 22417 Placer Sierra Nevada Mountains Foothills; Yankee Jim Road, 3.6 miles northwest of its junction with Foresthill Roadd. 651 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
  SD254688  Persicaria punctata George K Helmkamp, Elizabeth Helmkamp 2012-10-30 20091 Placer Sacramento Valley: South Dowd Road, 0.1 mile south of its junction with Moore Road, SW of Lincoln (Pleasant Grove 7.5'Q) 34 Comment
  SD255609  Bromus hordeaceus George K. Helmkamp, Amy Barnes 2014-3-21 22641 Placer Sacramento Valley: Sherican, Riosa Road at the west side of its junction with old CA-65 (Sheridan 7.5'Q) 32 Comment
  SD255737  Lupinus bicolor George K. Helmkamp, Amy Barnes 2014-3-21 22644 Placer Sacramentop Valley; Sheridan, Riosa Road at the west side of its junction with old CA 65. 32 Comment
  SD255744  Lupinus nanus George K. Helmkamp, Amy Barnes 2014-3-21 22626 Placer Sacramento Valley; Riosa Road at the east side of its junction with CA 65, just west of Sheridan. 32 Comment
  SD255747  Medicago polymorpha George K. Helmkamp, Elizabeth Helmkamp 2014-2-22 22532 Placer Sierra Nevada Mountains Foothills; North Auburn, corner of Bell Road and Olympic Way, 0.7 mile west of CA 49. 433 Comment
  SD255755  Trifolium hirtum George K. Helmkamp, Amy Barnes 2014-3-21 22643 Placer Sacramento Valley; Sheridan, Riosa Road at the west side of its junction with old CA 65. 32 Comment
  SD255759  Trifolium willdenovii George K. Helmkamp, Amy Barnes 2014-3-21 22630 Placer Sacramento Valley; Riosa Road at the east side of its junction with CA 65, just west of Sheridan. 32 Comment
  SD255783  Limnanthes alba subsp. alba George K Helmkamp, Amy Barnes 2014-4-23 22812 Placer Sierra Nevada Mountains Foothills: Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill (Colfax 7.5'Q) 719 Comment
  SD255788  Malva parviflora George K Helmkamp, Amy Barnes 2014-3-21 22642 Placer Sacramento Valley: Sheridan, Riosa Road at the west side of its junction with old CA-65 (Sheridan 7.5'Q) 32 Comment
  SD255839  Rumex crispus George K. Helmkamp, Amy Barnes 2014-3-21 22639 Placer Sacramento Valley: Sheridan, Riosa Road at the west side of its junction with Old CA-65 (Sheridan 7.5'Q) 32 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
  SD257132  Elymus caput-medusae George K. Helmkamp, Amy Barnes 2014-3-21 22637 Placer Sacremento Valley: Riosa Road at the east side of its junction with CA-65, just west of Sheridan (Sheridan 7.5'Q) 32 Comment
  SD260155  Cynosurus echinatus George K. Helmkamp, Mary Alice Barnes 2015-5-3 20478 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 mi. east (92a^z) of Foresthill (Forest Hill 7.5'Q) 829 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
  SD260888  Eucephalus breweri George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19826 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. (Duncan Peak 7.5'Q) 2043 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
  SD260907  Pseudognaphalium beneolens George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19805 Placer Northern Sierra Nevada Mountains: along Forest Hill Road, 10.4 miles northeast of Hidden Treasure Road, 0.45 mi. ESE of Whisky Hill (Duncan Peak 7.5'Q) 1677 Comment
  SEINET10268403  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2012-1 198895 Placer Northern Sierra Nevada Mountains: junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap 1634 Comment
  SEINET10340049  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
  SEINET11261457  Triphysaria versicolor subsp. faucibarbata George Helmkamp, E. A. Helmkamp 2011-4-10 17158 Placer In Sacramento Valley along Riosa Road at the E edge on the village of Sheridan.; 0 41 Comment
  SEINET11261459  Calochortus albus George Helmkamp, E. A. Helmkamp 2012-5-5 18912 Placer Northern Sierra Nevada Mountains Foothills on Lake Clementine Road, 1.2 miles W of the junction with Foresthill Road. 0.3 air miles SE (123 degrees) of Clementine Dam on the American River.; 0 396 Comment
  SEINET11261460  Nemophila heterophylla George Helmkamp, E. A. Helmkamp 2012-5-5 18920 Placer Northern Sierra Nevada Mountains Foothills on Lake Clementine Road, 1.2 miles W of the junction with Foresthill Road. 0.3 air miles SE (123 degrees) of Clementine Dam on the American River.; 0 396 Comment
  SEINET11261466  Lupinus microcarpus var. densiflorus George Helmkamp, Amy Barnes 2014-4-23 22771 Placer Sierra Nevada Mountain Foothills on Old Forest Hill Road, 0.4 miles NE of the junction with CA-49 at North Fork American River.; 0 290 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
  SEINET11261547  Lathyrus sulphureus George Helmkamp, E. A. Helmkamp 2012-5-5 18914 Placer Northern Sierra Nevada Mountains Foothills on Lake Clementine Road, 1.2 miles W of the junction with Foresthill Road. 0.3 air miles SE (123 degrees) of Clementine Dam on the American River.; 0 396 Comment
  SEINET11261550  Iris tenuissima subsp. purdyiformis George Helmkamp, E. A. Helmkamp 2012-5-5 18913 Placer Northern Sierra Nevada Mountains Foothills on Lake Clementine Road, 1.2 miles W of the junction with Foresthill Road. 0.3 air miles SE (123 degrees) of Clementine Dam on the American River.; 0 396 Comment
  SEINET11261554  Trifolium hirtum George Helmkamp, E. A. Helmkamp 2011-4-10 17156 Placer In Sacramento Valley along Riosa Road at the E edge on the village of Sheridan.; 0 41 Comment
  SEINET11261560  Lupinus microcarpus var. densiflorus George Helmkamp, E. A. Helmkamp 2012-5-5 18921 Placer Northern Sierra Nevada Mountains Foothills on Lake Clementine Road, 1.2 miles W of the junction with Foresthill Road. 0.3 air miles SE (123 degrees) of Clementine Dam on the American River.; 0 396 Comment
  SEINET11261737  Potentilla gracilis var. fastigiata George Helmkamp, E. A. Helmkamp 2011-7-26 17895 Placer Northern Sierra Nevada Mountains: Bowman Lake Road, .9 mile north of its junction with CA Hwy 20, .85 mi. NE (231/4) of emigrant Gap and N of I-80 (Blue canyon 7.5' Q); 0 1434 Comment
  SEINET11261795  Linum lewisii var. alpicola George K. Helmkamp, E. A. Helmkamp 2011-7-26 17891 Placer Northern Sierra Nevada Mountains: Bowman Lake Road, 0.9 miles N of its junction with CA Hwy 20, 0.85 miles NE (23 degrees) of Emigrant Gap and N of I-80.; 0 1434 Comment
  SEINET11261796  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp 2011-7-26 17889 Placer Northern Sierra Nevada Mountains: Along CA Highway 20, 0.8 miles E of Bowman Lake Road, 1.23 miles NE (50 degrees) of Emigrant Gap and 0.35 miles N of I-80.; 0 1541 Comment
  SEINET11261799  Lepidium virginicum var. virginicum George K. Helmkamp, E. A. Helmkamp 2011-7-26 17900 Placer Northern Sierra Nevada Mountains: Bowman Lake Road, 0.9 miles N of its junction with CA Hwy 20, 0.85 miles NE (23 degrees) of Emigrant Gap and N of I-80.; 0 1434 Comment
  SEINET11261857  Lathyrus nevadensis subsp. nevadensis George Helmkamp, E. A. Helmkamp 2012-5-11 18954 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.7 miles N of its junction with Forest Hill Road (Foresthill 7.5' Q.); 0 1041 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
  SEINET11261906  Acer macrophyllum George Helmkamp, E. A. Helmkamp 2012-5-11 18953 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.7 miles N of its junction with Forest Hill Road (Foresthill 7.5' Q.); 0 1041 Comment
  SEINET11262283  Vicia hirsuta George Helmkamp, E. A. Helmkamp 2012-5-5 18916 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
  SEINET11262284  Adiantum jordanii George Helmkamp, E. A. Helmkamp 2012-5-5 18917 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
  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
  SEINET11265983  Gilia leptalea subsp. leptalea George Helmkamp, E. A. Helmkamp 2010-7-28 16667 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat (Duncan Peak 7.5' Q.); 0 2039 Comment
  SEINET11265986  Lotus purshianus var. purshianus George Helmkamp, E. A. Helmkamp 2010-10-16 17016 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim's Road, 0.5 miles north of Forest Hill Road in Foresthill, near intersection with Mayflower Rd (Foresthill 7.5' Q.); 0 948 Comment
  SEINET11266063  Allophyllum integrifolium George Helmkamp, E. A. Helmkamp 2011-8-26 18184 Placer Norther Sierra Nevada Mountains: along Forest Hill Road, 0.4 miles of Robinson Flat (Duncan Peak 7.5 Q.); 0 2050 Comment
  SEINET12825132  Bignonia capreolata George K. Helmkamp, E. A. Helmkamp 2009-1 14631 Placer Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill. Sierra Nevada Mountains Foothills. 1796 Comment
  SEINET13203100 Image available Vicia hirsuta George K. Helmkamp, Amy Barnes 2014-1 22780 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.) 290 Comment
  SEINET13203101 Image available Trifolium dubium George K. Helmkamp, Amy Barnes 2014-1 22781 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.) 290 Comment
  SEINET13203118 Image available Calystegia occidentalis subsp. occidentalis George K. Helmkamp, Amy Barnes 2014-1 22779 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.) 290 Comment
  SEINET13203264 Image available Trifolium incarnatum George K. Helmkamp, Amy Barnes 2013-1 20233 Placer Eastern Sacramento Valley: NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65 (Sheridan 7.5' Q.) 43 Comment
  SEINET13203265 Image available Medicago orbicularis George K. Helmkamp, Amy Barnes 2013-1 20234 Placer Eastern Sacramento Valley: NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65 (Sheridan 7.5' Q.) 43 Comment
  SEINET13276726 Image available Polygonum persicaria George K. Helmkamp, Elizabeth Helmkamp 2012-1 20088 Placer Sacramento Valley: South Dowd Road, 0.1 mile south of its junction with Moore Road, SW of Lincoln (Pleasant Grove 7.5' Q.) 34 Comment
  SEINET13276770 Image available Eschscholzia californica George K. Helmkamp, E. A. Helmkamp 2009-1 14557 Placer Sierra Nevada Mountains Foothills: Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River (Auburn 7.5' Q.) 277 Comment
  SEINET13384101 Image available Agrostis pallens George K. Helmkamp, Ann Kerchner, Amy Barnes 2012-1 19523 Placer Northern Sirrea Nevada Mountains: Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary 2135 Comment
  SEINET1907214  Cordylanthus tenuis subsp. tenuis G. K. Helmkamp, E. A. Helmkamp 2006-1 11212 Placer Northern Sierra Nevada Mtns foothills: along Forest Hill Rd., 8.7 miles northeast of Forest Hill. 1311 Comment
  SEINET1908714  Dysphania botrys G. K. Helmkamp, E. A. Helmkamp 2008-1 14098 Placer Foothills, northern Sierra Nevada Mountains; along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill 773 Comment
  SEINET239050 Image available Festuca viridula G. K. Helmkamp, E. A. Helmkamp 1999-6-30 5097 Placer Northern Sierra Nevadas: Soda Springs Road .9 miles south of Donner Pass Road approaching Ice Lakes. 2104 Comment
  SEINET2441254  Juncus effusus var. pacificus 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. (Duncan Peak 7.5' Q.).; 0 1662 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
  SEINET2441405  Ipomopsis aggregata subsp. formosissima George K. Helmkamp, E. A. Helmkamp 2009-7-16 15220 Placer Sierra Nevada Mountains: Forest Hill Road, 26.1 miles northeast of the city of Foresthill, c. 3/4 mi. NW of Sailor Flat (Duncan Peak 7.5' Q.). 2020 Comment
  SEINET2441545  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2009-4-22 14569 Placer Sierra Nevada Mountains Foothills: Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road (Greenwood 7.5' Q.). 448 Comment
  SEINET2441549  Plagiobothrys nothofulvus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14583 Placer Sierra Nevada Mountains Foothills: Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake (Greenwood 7.5' Q.). 732 Comment
  SEINET2441551  Gilia tricolor subsp. diffusa George K. Helmkamp 2009-4-22 14582 Placer Sierra Nevada Mountains Foothills: Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake (Greenwood 7.5' Q.). 732 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
  SEINET2441557  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2009-8-12 15424 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5' Q.). 1662 Comment
  SEINET2441558  Galium porrigens George K. Helmkamp 2009-8-12 15427 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5' Q.). 1662 Comment
  SEINET2441671  Vicia villosa subsp. villosa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14560 Placer Sierra Nevada Mountains Foothills: Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River (Auburn 7.5' Q.). 277 Comment
  SEINET2441672  Medicago polymorpha George K. Helmkamp, E. A. Helmkamp 2009-4-22 14558 Placer Sierra Nevada Mountains Foothills: Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River (Auburn 7.5' Q.). 277 Comment
  SEINET2442022  Prunus emarginata George K. Helmkamp, E. A. Helmkamp 2009-8-12 15433 Placer Sierra Nevada Mountains: Forest Hill Road, 0.8 mile west of Robinson Flat, c.27 miles NE of the city of Foresthill (Duncan Peak 7.5' Q).; 0 2033 Comment
  SEINET2442325  Cuscuta californica var. californica George K. Helmkamp, E. A. Helmkamp 2009-8-12 15441 Placer Sierra Nevada Mountains: Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill. 2033 Comment
  SEINET2443006  Aster radulinus George K. Helmkamp, E. A. Helmkamp 2009-8-12 15453 Placer Northern Sierra Nevada Mountains. Forest Hill Road, 21.7 miles northeast of the city of Foresthill. 1701 Comment
  SEINET2445704  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-30 12180 Placer Northern Sierra Nevada Mountains Foothills. Mosquito Ridge Road, 10.7 miles E of its jct with Forest Hill Road in Foresthill. (Michigan Bluff 7.5' Q). 588 Comment
  SEINET2445705  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-18 12035 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 SE of Foresthill. (michigan Bluff 7.5' Q). 439 Comment
  SEINET2473462 Image available Koeleria phleoides George K. Helmkamp, E. A. Helmkamp 2010-1 15916 Placer Sierra Nevada Mountains Foothills; along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mi. north of the American River crossing 200 Comment
  SEINET2473480 Image available Elymus glaucus subsp. glaucus George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-1 16436 Placer Sierra Nevada Mountains Foothills; Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 410 Comment
  SEINET2473481 Image available Bromus George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-1 16435 Placer Sierra Nevada Mountains Foothills; Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 410 Comment
  SEINET3245663  Cordylanthus tenuis subsp. tenuis G. K. Helmkamp, E. A. Helmkamp 2009-1 15424 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5') 1661 Comment
  SEINET3245753  Erysimum capitatum var. capitatum G. K. Helmkamp, E. A. Helmkamp 2009-1 15214 Placer Sierra Nevada Mountains: Forest Hill Road, 26.1 miles northeast of the city of Foresthill, c. 3/4 mi. NW of Sailor Flat (Duncan Peak 7.5') 2019 Comment
  SEINET3245755  Mimulus torreyi G. K. Helmkamp, E. A. Helmkamp 2009-1 15425 Placer Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5') 1661 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
  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
  SEINET3245944  Calycadenia multiglandulosa G. K. Helmkamp, E. A. Helmkamp 2010-1 16368 Placer Sierra Nevada Mountain Foothills: junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax (Colfax 7.5') 616 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
  SEINET3245949  Trifolium hirtum G. K. Helmkamp, E. A. Helmkamp 2010-1 15933 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5') 157 Comment
  SEINET3245950  Petrorhagia dubia G. K. Helmkamp, E. A. Helmkamp 2010-1 15934 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5') 157 Comment
  SEINET3245951  Trifolium dubium G. K. Helmkamp, E. A. Helmkamp 2010-1 15928 Placer Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5') 157 Comment
  SEINET3246026  Geranium pusillum G. K. Helmkamp, E. A. Helmkamp 2007-1 11706 Placer Foothills, Northern Sierra Nevada Mountains: 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
  SEINET3246067  Quercus wislizeni var. wislizeni G. K. Helmkamp, E. A. Helmkamp 2007-1 11710 Placer Foothills, Northern Sierra Nevada Mountains: 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
  SEINET3246086  Eriogonum nudum var. deductum G. K. Helmkamp, E. A. Helmkamp 2007-1 12636 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1743 Comment
  SEINET3246089  Lupinus lepidus var. confertus G. K. Helmkamp, E. A. Helmkamp 2007-1 12640 Placer Northern Sierra Nevada Mountains: 0.1 miles south of the Rainbow exit from Interstate-80, 0.5 miles east of Rainbow. 1789 Comment
  SEINET3246091  Erigeron inornatus var. inornatus G. K. Helmkamp, E. A. Helmkamp 2007-1 12628 Placer Northern Sierra Nevada Mountains: Southeast of Cisco Grove; along local road just before it passes under Interstate-80. 1743 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
  SEINET3246123  Monardella odoratissima subsp. pallida G. K. Helmkamp, E. A. Helmkamp 2007-1 12642 Placer Northern Sierra Nevada Mountains: Donner Pass Road between Donner and Norden, about 0.2 miles east of the Nevada Co. border. 2150 Comment
  SEINET3271551 Image available Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14603 Placer Sierra Nevada Mountains Foothills; Mosquito Ridge Road, 4.4 miles east of its junction with Forest Hill Road in Foresthill 805 Comment
  SEINET3271586 Image available Agrostis capillaris George K. Helmkamp, E. A. Helmkamp 2009-7-16 15212 Placer Sierra Nevada Mountains; Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  SEINET3282795 Image available Apocynum androsaemifolium George K. Helmkamp, E. A. Helmkamp 2009-7-16 15208 Placer Sierra Nevada Mountains; Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point. 1698 Comment
  SEINET3282796 Image available Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15207 Placer Sierra Nevada Mountains; Foresthill Road, 20.3 miles northeast of the city of Foresthill. 1704 Comment
  SEINET3282797 Image available Agrostis George K. Helmkamp, E. A. Helmkamp 2009-8-12 15430 Placer Sierra Nevada Mountains; Forest Hill Road, 20.5 miles northeast of the city of Foresthill. 1662 Comment
  SEINET3282798 Image available Achnatherum occidentale subsp. californicum George K. Helmkamp, E. A. Helmkamp 2009-8-12 15451 Placer Sierra Nevada Mountains; Forest Hill Road at Robinson Flat, 27 miles northeast of the city of Foresthill. 2061 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
  SEINET3411994 Image available Erodium botrys George K. Helmkamp, E. A. Helmkamp 2012-3-31 18649 Placer Sacramento Valley: along CA-193, 0.1 mile W of its junction with Sierra College Blvd. 88 Comment
  SEINET3440029 Image available Poa George K. Helmkamp, E. A. Helmkamp 2012-5-5 18918 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 mi W of its junction with Foresthill Road, 0.3 air mi SE of Clementine Dam on the American River 396 Comment
  SEINET3440030 Image available Polypodium hesperium George K. Helmkamp, E. A. Helmkamp 2012-5-5 18924 Placer Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 mi W of its junction with Foresthill Road, 0.3 air mi SE of Clementine Dam on the American River 396 Comment
  SEINET3440031 Image available Vulpia myuros George K. Helmkamp, E. A. Helmkamp 2012-5-5 18928 Placer Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 mi south of its junction with Foresthill Road 778 Comment
  SEINET3815513 Image available Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18940 Placer Foothills, northern Sierra Nevada Mountains: Finning Mill Road at the junction with Forest Hill Road 346 Comment
  SEINET3815515 Image available Stipa lettermanii George K. Helmkamp, E. A. Helmkamp 2012-5-11 18959 Placer Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 4.0 miles N of Forest Hill Road 1140 Comment
  SEINET3817934 Image available Bromus laevipes George K. Helmkamp, E. A. Helmkamp 2012-5-5 18910 Placer Northern Sierra Nevada Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi SE (123degrees) of Clementine Dam on the American River (Auburn 7.5' Q. 396 Comment
  SEINET3821619 Image available Elymus glaucus subsp. glaucus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17863 Placer Northern Sierra Nevada Mountains, Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 mi NE (65 degrees) of Emigrant Gap (Blue Canyon 7.5' Q) 1590 Comment
  SEINET3828342  Acer macrophyllum George K. Helmkamp, E. A. Helmkamp 2012-1 18953 Placer Northern Sierra Nevada Mountians Foothills: Finnin Mill Road, 1.7 miles north of its junction with Forest Hill Road, Foresthill 7.5 1041 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
  SEINET3828385  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2012-1 18940 Placer Foothills northern Sierra Nevada Mountians: Finnin Mill Road at the junction with Forest Hill Road (Foresthill 7.5') 1135 Comment
  SEINET3828565  Dittrichia graveolens George K. Helmkamp, E. A. Helmkamp 2011-1 18480 Placer Sacramento Valley/Sierra Nevada Foothills: along CA-193 (Lincon Newcastle Hwy). 2.0 miles east of East Street in Lincoln, near Stagecoach ln. (Gold Hill 7.5') 125 Comment
  SEINET3828571  Festuca bromoides George K. Helmkamp, E. A. Helmkamp 2012-1 18647 Placer Sacramento Valley: along Ca-193, 0.1 mile west of its junction with Sierra College Blvd. (Gold Hill 7.5') 88 Comment
  SEINET3860289  Umbellularia californica George K. Helmkamp, Mary Alice Barnes; Mary Jane Ganibe 2010-7-2 16419 Placer Sierra Nevada Mountains Foothills: Yankee Jims Road, 3.2 miles southeast of its junction with Canyon Way, 4.4 air mi. SE of Calfax.; 0 412 Comment
  SEINET3860297  Clarkia purpurea subsp. viminea George K. Helmkamp, E. A. Helmkamp 2010-6-26 16414 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 ENE of Applegate.; 0 476 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
  SEINET3860417 Image available Adiantum jordanii George K. Helmkamp, Mary Alice Barnes; Mary Jane Ganibe 2010-7-2 16437 Placer Sierra Nevada Mountains Foothills: Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way Colfax.; 0 415 Comment
  SEINET3860446  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2010-6-26 16404 Placer Sierra Nevada Mountains Foothills: Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way.; 0 591 Comment
  SEINET3885610  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2007-5-18 12006 Placer Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 2.8 miles southeast of Foresthill (Foresthill 7.5' Q.).; 0 814 Comment
  SEINET4178826 Image available Epilobium glaberrimum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16794 Placer Northerns Sierra Nevada Mountains: American Hill Road (Forest Route 13), 4.7 miles south of it's junction with Foresthill Road and just south of a creek crossing.. 1551 Comment
  SEINET4178829 Image available Galium triflorum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16782 Placer Northern Sierra Nevada Mountains: American Hill Road (Forest Route 13), 4.7 miles south of it's junction with Foresthill Road and just south of a creek crossing. 1551 Comment
  SEINET4560740  Ranunculus bonariensis var. trisepalus George K. Helmkamp, E. A. Helmkamp 2011-1 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
  SEINET4560741  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2011-1 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
  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
  SEINET4560767  Pedicularis semibarbata George K. Helmkamp, E. A. Helmkamp 2010-1 16659 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 22 miles northeast of the city of Foresthill. 2041 Comment
  SEINET4560768  Salix jepsonii George K. Helmkamp, E. A. Helmkamp 2010-1 16671 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat. 2040 Comment
  SEINET4560769  Penstemon azureus George K. Helmkamp, E. A. Helmkamp 2010-1 16670 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat. 2040 Comment
  SEINET4560777  Medicago lupulina George K. Helmkamp, E. A. Helmkamp 2012-1 19217 Placer Northern Sierra Nevada Mountains; Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill. 1052 Comment
  SEINET4560778  Phacelia mutabilis George K. Helmkamp, E. A. Helmkemp 2011-1 18175 Placer Northern Sierra Nevada Mountains: Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2060 Comment
  SEINET4560780  Allophyllum integrifolium George K. Helmkamp, E. A. Helmkamp 2011-1 18184 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
  SEINET4560789  Lupinus argenteus var. argenteus George K. Helmkamp, E. A. Helmkamp 2011-1 18162 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 3.6 miles east of its junction with Mesquite Road in the city of Foresthill. 1402 Comment
  SEINET4560808  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2010-1 17017 Placer Northern Sierra Nevada Mountains Foothills: Yankee Jim's Road, 0.5 miles north of Forest Hill Road in Foresthill, near intersection with Mayflower rd. 948 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
  SEINET4560810  Alnus rhombifolia George K. Helmkamp, E. A. Helmkamp 2010-1 17025 Placer Northern Sierra Nevada Mountain Foothills: along Forest Route 24 at Parker Flat and Beside Forbes Creek, 1.9 miles east (airlines) of the Sugar Pine Reservoir dam. 1180 Comment
  SEINET4560811  Baccharis pilularis George K. Helmkamp, E. A. Helmkamp 2010-1 17031 Placer Northern Sierra Nevada Mountains Foothills: Sugar Pine Road at the southwest corner of Sugar Pine Reservoir near the dam 1128 Comment
  SEINET4560812  Eucephalus breweri George K. Helmkamp, E. A. Helmkamp 2011-1 18164 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2019 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
  SEINET4560817  Galium bolanderi George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2010-1 19808 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
  SEINET4560834  Rosa californica George K. Helmkamp, E. A. Helmkamp 2010-1 17026 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
  SEINET4560835  Centaurea solstitialis George K. Helmkamp, E. A. Helmkamp 2010-1 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
  SEINET4691389  Brickellia californica George K. Helmkamp, E. A. Helmkamp 2010-1 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
  SEINET4691427  Polygala cornuta George K. Helmkamp, E. A. Helmkamp 2012-1 19216 Placer Northern Sierra Nevada Mountains Foothills: Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill. 1052 Comment
  SEINET4691436  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-1 17142 Placer Sacramento Valley: east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road. 98 Comment
  SEINET4691476  Angelica breweri George K. Helmkamp, E. A. Helmkamp 2010-1 16680 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.8 miles east of Forest Route 13/American Hill Road. 1662 Comment
  SEINET4691665  Viola pinetorum subsp. pinetorum George K. Helmkamp, E. A. Helmkamp 2010-1 16676 Placer Northern Sierra Nevada Mountains: Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill. 2040 Comment
  SEINET4691666  Lupinus arbustus George K. Helmkamp, E. A. Helmkamp 2010-1 16678 Placer Northern Sierra Nevada Mountains: Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill. 2040 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
  SEINET4691672  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2010-1 16800 Placer Northern Sierra Nevada Mountains: American Hill Road, 1.2 miles south of its junction with Foresthill Road. 1567 Comment
  SEINET4691674  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2010-1 16799 Placer Northern Sierra Nevada Mountains: American Hill Road, 1.2 miles south of its junction with Foresthill Road. 1567 Comment
  SEINET4691679  Triteleia laxa George K. Helmkamp, E. A. Helmkamp 2011-1 17139 Placer Sacramento Valley: east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road. 98 Comment
  SEINET4691680  Prunella vulgaris var. lanceolata George K. Helmkamp, E. A. Helmkamp 2010-1 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
  SEINET4691683  Epilobium glaberrimum subsp. glaberrimum George K. Helmkamp, E. A. Helmkamp 2010-1 16794 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. Comment
  SEINET4691685  Physocarpus capitatus George K. Helmkamp, E. A. Helmkamp 2010-1 17030 Placer Northern Sierra Nevada Mountains Foothills: along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) lf the Sugar Pine Reservoir dam. 1180 Comment
  SEINET4691686  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2010-1 16753 Placer Northern Sierra Nevada Mountains: Finning Mill road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek. 1085 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
  SEINET4691689  Galium sparsiflorum subsp. sparsiflorum George K. Helmkamp, E. A. Helmkamp 2010-1 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
  SEINET4691694  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2010-1 16666 Placer Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat. 2040 Comment
  SEINET4691695  Rubus parviflorus George K. Helmkamp, E. A. Helmkamp 2010-1 16787 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
  SEINET4691712  Penstemon neotericus George K. Helmkamp, E. A. Helmkamp 2011-1 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
  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
  SEINET4691719  Vicia americana subsp. americana George K. Helmkamp, E. A. Helmkamp 2010-1 16637 Placer Northern Sierra Nevada Mountains Foothills: Forest Route 10 (Sugar Pine R.), 0.8 mile north of its junction with Forest Hill Road, 8,2 miles NE (34 degrees) of Foresthill. 1311 Comment
  SEINET5586229  Eschscholzia caespitosa G. K. Helmkamp, E. A. Helmkamp 2007-1 11709 Placer Foothills, Northern Sierra Nevada Mountains: 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
  SEINET7249050  Acmispon brachycarpus G. K. Helmkamp, Mary Alice Barnes 2013-1 20345 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
  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
  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
  SEINET8465195 Image available Ligusticum grayi George K. Helmkamp, E. A. Helmkamp 2009-7-16 15232 Placer Sierra Nevada Mountains; Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 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
  SEINET9260873  Trifolium incarnatum George K. Helmkamp, Amy Barnes 2014-1 22809 Placer Sierra Nevada Mountains Foothills: Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill (Colfax 7.5' Q) 719 Comment
  SEINET9262029  Prunella vulgaris subsp. lanceolata George K. Helmkamp, Elizabeth Helmkamp 2013-1 20804 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
  SEINET9262032  Trifolium pratense George K. Helmkamp, Elizabeth Helmkamp 2013-1 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
  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
  SEINET9262042  Eriophyllum lanatum var. grandiflorum George K. Helmkamp, Elizabeth Helmkamp 2013-1 20830 Placer Northern Sierra Nevada Mountains Foothills; Yankee Jims Road, 3.6 miles northwest of its junction with Forest Hill Road (Foresthill 7.5 Q) 463 Comment
  UC1950986  Erigeron inornatus var. inornatus G. K. Helmkamp, E. A. Helmkamp 2005-10-1 9980 Placer Northern Sierra Nevada Mtns.: NW of Lake Tahoe; Junction of Bear Creek Road and Big John Drive (ca 2.2 mi W of CA Highway 89 and just S of Alpine Meadows Road) Tahoe City 7.5' Quad Comment
  UC2045175  Castilleja applegatei subsp. pinetorum George K. Helmkamp with Mary Alice Barnes 2013-4-18 20354 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. Colfax 7.5' Q. Comment
  UC2046875  Drymocallis lactea George K. Helmkamp with E. A. Helmkamp 2012-6-19 19238 Placer Northern Sierra Nevada Mountains: Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road. Duncan Peak 7.5' Quad. Comment
  UCD100610  Eriogonum nudum var. nudum G. K. Helmkamp; E. A. Helmkamp 2006-8-11 11216 Placer Northern Sierra Nevada Mtns; along Forest Hill Road, 8.7 miles northeast of Forest Hill. 1311 Comment
  UCD101887  Dudleya cymosa G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10424 Placer Northern Sierra Nevada. 2.1 miles S of Auburn, along CA-Hwy 49. 293 Comment
  UCD103424  Geranium molle G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11706 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
  UCD103624  Gayophytum diffusum subsp. parviflorum G. K. Helmkamp; E. A. Helmkamp 2006-8-11 11215 Placer Northern Sierra Nevada Mtns; along Forest Hill Road, 8.7 miles northeast of Forest Hill. 1311 Comment
  UCD103656  Gayophytum diffusum subsp. parviflorum G. 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
  UCD103665  Chamerion angustifolium subsp. circumvagum G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12641 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCD103824  Acmispon americanus var. americanus G. K. Helmkamp; E. A. Helmkamp 2006-8-11 11218 Placer Northern Sierra Nevada Mtns; along Forest Hill Road, 8.7 miles northeast of Forest Hill. 1311 Comment
  UCD104064  Acmispon brachycarpus G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11711 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
  UCD104350  Clarkia biloba subsp. brandegeeae G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10708 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
  UCD105054  Clarkia unguiculata G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10710 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
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May 6 2016
  UCD105355  Epilobium brachycarpum G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12644 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCD105471  Epilobium canum subsp. latifolium G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12967 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 15 miles E of Foresthill. 832 Comment
  UCD105784  Epilobium ciliatum subsp. ciliatum G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12956 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill. 942 Comment
  UCD106006  Lupinus albifrons var. albifrons G. K. Helmkamp; Elizabeth Helmkamp 2006-4-13 10195 Placer Northern Sierra Nevada Foothills; Forest Hill Road, 2.5 mi E of its junction with CA 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
  UCD107243  Lupinus bicolor G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11705 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
  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
  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
  UCD108251  Lupinus lepidus var. confertus G. K. Helmkamp; E. A. Helmkamp 2005-9-30 9964 Placer Northern High Sierra Mountains: ca. 3.5 mi NW of Lake Tahoe; Along the Truckee River and CA Highway 89, 0.1 mi N of Alpine Meadows Road. 1902 Comment
  UCD108400  Lupinus lepidus var. confertus G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12640 Placer Northern Sierra Nevada Mountains: 0.1 mile south of the Rainbow exit from Interstate-80, 0.5 miles east of Rainbow. 1790 Comment
  UCD108416  Robinia pseudoacacia G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12958 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill. 942 Comment
  UCD109016  Lupinus nanus G. K. Helmkamp; Elizabeth Helmkamp 2006-4-6 10131 Placer Northern Sierra Nevada Foothills: NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin. 122 Comment
  UCD109113  Vicia villosa subsp. varia G. K. Helmkamp; Elizabeth Helmkamp 2006-4-6 10132 Placer Northern Sierra Nevada Foothills: NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin. 122 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
  UCD110375  Hypericum perforatum subsp. perforatum G. K. Helmkamp; Elizabeth A. Helmkamp 2006-6-14 10709 Placer Northern Sierra Nevada foothills: 0.2 mile north of Forest Hill Road on unnamed road to Lake Clementine (general area northeast of Auburn on Forest Hill Divide). 488 Comment
  UCD111146  Trifolium hirtum G. 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
  UCD111148  Trifolium hirtum G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11712 Placer Northern Sierra Nevada Mountains: Forest Hill Road at the junction with the unnamed road to Lake Clementine. 457 Comment
  UCD111168  Viola purpurea G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12059 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville. 1576 Comment
  UCD111313  Viola tomentosa G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12058 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville. 1576 Comment
  UCD111389  Ceanothus cordulatus G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12055 Placer Northern Sierra Nevada Mountains; along Forest Hill Road, 11.1 miles northeast of Foresthill. 1463 Comment
  UCD111975  Ceanothus integerrimus G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12066 Placer Northern Sierra Nevada Mountains: Sugar Pine road, 0.2 mile northwest of Forest Hill Road. 1360 Comment
  UCD112105  Ceanothus cuneatus var. cuneatus G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11714 Placer Northern Sierra Nevada Mountains; Forest Hill Road at the junction with unnamed road to Lake Clementine. 457 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
  UCD112654  Ceanothus prostratus G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12054 Placer Northern Sierra Nevada Mountains: along Forest Hill Road, 11.1 miles northeast of Foresthill. 1463 Comment
  UCD112933  Chamaebatia foliolosa G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12051 Placer Northern Sierra Nevada Mountains: Along Forest Hill Road, 2.3 miles northeast of Foresthill. 1116 Comment
  UCD113129  Frangula rubra G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12068 Placer Nothern Sierra Nevada Mountains; Sugar Pine Road, 0.2 mile northwest of Forest Hill Road. 1360 Comment
  UCD113213  Prunus emarginata G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12063 Placer Northern Sierra Nevada Mountains; Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville. 1576 Comment
  UCD113386  Rosa bridgesii G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12052 Placer Northern Sierra Nevada Mountains. Along Forest Hill Road, 2.3 miles northeast of Foresthill. 1116 Comment
  UCD113572  Horkelia tridentata var. tridentata G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12061 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville. Comment
  UCD113978  Poterium sanguisorba G. K. Helmkamp; E. A. Helmkamp 2006-8-11 11217 Placer Northern Sierra Nevada Mtns: along Forest Hill Road, 8.7 miles northeast of Forest Hill. 1311 Comment
  UCD113979  Poterium sanguisorba G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12959 Placer Northern Sierra Nevada Mountains: Along Mosquito Ridge Road 0.4 mile east of Foresthill. 942 Comment
  UCD114808  Brassica rapa G. K. Helmkamp; E. A. Helmkamp 2006-2-9 10064 Placer Northern Central Valley: Clark Tunnel Road and CA Highway 193, E of Lincoln. 113 Comment
  UCD115182  Raphanus sativus G. K. Helmkamp; E. A. Helmkamp 2006-2-9 10062 Placer Northern Central Valley, Clark Tunnel Road and CA Highway 193, East of Lincoln. 113 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
  UCD117279  Philadelphus lewisii G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10705 Placer Northern Sierra Nevada Mountains: 0.2 mile N of Forest Hill Road on unnamed road to Lake Clementine (general area NE of Auburn on Forest Hill Divide). 487 Comment
  UCD117335  Cornus sericea subsp. sericea G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12632 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD120496  Phacelia hastata subsp. compacta G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12637 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD121613  Galium bolanderi G. K. Helmkamp; E. A. Helmkamp 2006-8-11 11214 Placer Northern Sierra Nevada Mtns foothills: along Forest Hill Rd., 8.7 miles northeast of Forest Hill. 1311 Comment
  UCD121694  Galium aparine G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12064 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville. 1576 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
  UCD122501  Castilleja foliolosa G. K. Helmkamp; Elizabeth Helmkamp 2007-3-25 11715 Placer Northern Sierra Nevada Mountains: Forest Hill Road at the junction with the unnamed road to Lake Clementine. 457 Comment
  UCD122789  Mimulus nanus var. jepsonii G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12057 Placer Northern Sierra Nevada Mountains. Along Forest Hill Road, 11.1 miles northeast of Foresthill. 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
  UCD123537  Collinsia tinctoria G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10713 Placer Northern Sierra Nevada Mountains foothills. 0.2 mile N of the Forest Hill Road on unnamed road to Lake Clementine (general area northeast of Auburn on Forest Hill Divide). 487 Comment
  UCD124043  Penstemon azureus var. azureus G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12624 Placer Northern Sierra Nevada Mountains; southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD124048  Penstemon azureus G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10712 Placer Northern Sierra Nevada Mountains foothills; 0.2 mile N of the Forest Hill Road on unnamed road to Lake Clementine (general area northeast of Auburn on Forest Hill Divide). 487 Comment
  UCD124691  Veronica arvensis G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11707 Placer Northern Sierra Nevada Mountains: 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
  UCD125220  Monardella odoratissima subsp. pallida G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12642 Placer Northern Sierra Nevada Mountains: Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada County border. 2151 Comment
  UCD126172  Calystegia occidentalis subsp. occidentalis G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10706 Placer Northern Sierra Nevada Mountains: 0.2 mile N of Forest Hill Road on unnamed road to Lake Clementine (general area NE of Auburn on Forest Hill Divide). 487 Comment
  UCD127133  Angelica breweri G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12649 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCD127200  Anthriscus caucalis G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10427 Placer Northern Sierra Nevada foothills 2.1 mi south of Auburn along Calif. Hwy 49. 293 Comment
  UCD127201  Anthriscus caucalis G. 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
  UCD127774  Osmorhiza berteroi G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12049 Placer Northern Sierra Nevada Mountains: Along Forest Hill Road, 2.3 miles northeast of Foresthill. 1116 Comment
  UCD128045  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
  UCD128156  Torilis arvensis G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10452 Placer Northern Sierra Nevada. Ca. 4 air miles NE of Auburn, along an unnamed road to Lake Clementine, 1.2 miles N of Forest Hill Road. 422 Comment
  UCD128157  Torilis arvensis G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10427 A Placer Northern Sierra Nevada Foothills. 2.1 miles south of Auburn along CA Hwy 49. 293 Comment
  UCD128584  Agoseris grandiflora G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10449 Placer Northern Sierra Nevada. Ca. 4 air miles NE of Auburn, along an unnamed road to Lake Clementine, 1.2 miles N of Forest Hill Road. 422 Comment
  UCD129571  Bidens frondosa G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12955 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill. 942 Comment
  UCD129631  Brickellia californica G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12961 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road 6 miles east of Foresthill. 610 Comment
  UCD130277  Chaenactis douglasii var. douglasii G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12624 Placer Northern Sierra Nevada Mountains; southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD130486  Cichorium intybus G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12949 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill. 942 Comment
  UCD130514  Cirsium andersonii G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12650 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCD132001  Erigeron inornatus var. inornatus G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12628 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD132002  Erigeron inornatus var. inornatus G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12645 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCD132211  Eriophyllum lanatum var. grandiflorum G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10441 Placer Northern Sierra Nevada. Ca. 4 air miles NE of Auburn, along Forest Hill Road, 1.8 miles northeast of its junction with CA Hwy 49 at the middle fork of American River. 370 Comment
  UCD132212  Eriophyllum lanatum var. grandiflorum G. K. Helmkamp; Elizabeth Helmkamp 2006-5-13 10426 Placer Northern Sierra Nevada Foothills. 2.1 miles south of Auburn along CA Hwy 49. 293 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
  UCD133970  Layia pentachaeta subsp. pentachaeta G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10714 Placer Northern Sierra Nevada Mountains foothills; 0.2 mile N of the Forest Hill Road on unnamed road to Lake Clementine (general area northeast of Auburn on Forest Hill Divide). 487 Comment
  UCD133982  Layia platyglossa G. K. Helmkamp; E. A. Helmkamp 2006-2-9 10063 Placer Northern Central Valley, Clark Tunnel Road and CA Highway 193, East of Lincoln. 113 Comment
  UCD134169  Madia citrigracilis G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10703 Placer Northern Sierra Nevada Mountains: 0.2 mile N of Forest Hill Road on unnamed road to Lake Clementine (general area NE of Auburn on Forest Hill Divide). 487 Comment
  UCD134265  Madia glomerata G. 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 E of the Nevada County border. 2151 Comment
  UCD135118  Pseudotsuga menziesii var. menziesii G. K. Helmkamp; E. A. Helmkamp 2006-8-11 11213 Placer Northern Sierra Nevada Mtns foothills; along Forest Hill Road, 8.7 miles northeast of Forest Hill. 1311 Comment
  UCD135940  Solidago elongata G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12964 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road 15 miles east of Foresthill. 832 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
  UCD138733  Iris hartwegii subsp. hartwegii G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12046 Placer Northern Sierra Nevada Mountains: Along Forest Hill Road, 2.3 miles northeast of Foresthill. 1116 Comment
  UCD139283  Muilla maritima G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12048 Placer Northern Sierra Nevada Mountains: Along Forest Hill Road, 2.3 miles northeast of Foresthill. 1116 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
  UCD141044  Cyperus eragrostis G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12950 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill. 942 Comment
  UCD141463  Juncus exiguus G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12957 Placer Northern Sierra Nevada Mountains: along Mosquito Ridge Road 0.4 mile east of Foresthill. 942 Comment
  UCD141530  Juncus ensifolius G. K. Helmkamp; E. A. Helmkamp 2007-8-1 12647 Placer Northern Sierra Nevada Mountains. Donner Pass Road between Donner and Norden, about 0.2 mile E of the Nevada County border. 2151 Comment
  UCD143099  Euphorbia crenulata G. K. Helmkamp; E. A. Helmkamp 2006-6-14 10707 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
  UCD64109  Quercus wislizeni var. wislizeni G. K. Helmkamp; E. A. Helmkamp 2007-3-25 11710 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
  UCD66242  Lolium multiflorum var. multiflorum G. 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
  UCD95313  Eschscholzia caespitosa G. K. Helmkamp; Elizabeth Helmkamp 2006-4-13 10198 Placer Northern Sierra Nevada Foothills; Forest Hill Road, 2.5 miles east of its junction with CA Hwy 49. North side of the middle fork of the American River. NE Auburn. 274 Comment
  UCD96146  Delphinium nuttallianum G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12060 Placer Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville. 1576 Comment
  UCD96804  Thalictrum fendleri var. fendleri G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12633 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD97925  Chenopodium berlandieri G. K. Helmkamp; E. A. Helmkamp 2005-9-30 9952 Placer Northern High Sierra Mountains: Junction of Chalet and Alpine Meadows Roads W of CA-89 (near Alpine ski area). 2081 Comment
  UCD98793  Aconogonon phytolaccifolium G. K. Helmkamp; E. A. Helmkamp 2007-7-27 12634 Placer Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80. 1744 Comment
  UCD99126  Silene vulgaris G. K. Helmkamp; E. A. Helmkamp 2007-9-14 12953 Placer Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill. 942 Comment
  UCD99342  Stellaria calycantha G. K. Helmkamp; E. A. Helmkamp 2007-5-23 12056 Placer Northern Sierra Nevada Mountains. Along Forest Hill Road, 11.1 miles northeast of Foresthill. Comment
  UCR110977  Perideridia bolanderi George K. Helmkamp, E. A. Helmkamp 1999-6-30 5105 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR110978  Castilleja parviflora George K. Helmkamp, E. A. Helmkamp 1999-6-30 5096 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR110999  Festuca viridula George K. Helmkamp, E. A. Helmkamp 1999-6-30 5097 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR111000  Lewisia nevadensis George K. Helmkamp, E. A. Helmkamp 1999-6-30 5106 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR111002  Taraxacum officinale George K. Helmkamp, E. A. Helmkamp 1999-6-30 5110 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR111003  Hypericum anagalloides George K. Helmkamp, E. A. Helmkamp 1999-6-30 5108 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 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
  UCR111006  Viola bakeri George K. Helmkamp, E. A. Helmkamp 1999-6-30 5112 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR111007  Lupinus angustiflorus George K. Helmkamp, E. A. Helmkamp 1999-6-30 5094 Placer Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes. 2104 Comment
  UCR120231  Polygonum bistortoides George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5068 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120233  Montia chamissoi George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5069 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120234  Navarretia intertexta subsp. propinqua George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5070 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120235  Barbarea orthoceras George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5071 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120237  Geum macrophyllum George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5067 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120238  Trifolium hybridum George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5059 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120239  Lotus nevadensis var. nevadensis George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5035 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120240  Phacelia hastata var. hastata George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5025 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120241  Calyptridium umbellatum George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5023 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120242  Sidalcea malviflora subsp. asprella George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5032 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120245  Allophyllum gilioides subsp. violaceum George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5031 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120246  Potentilla glandulosa subsp. reflexa George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5042 A Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 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
  UCR120250  Ceanothus cordulatus George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5039 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120251  Chaenactis douglasii var. douglasii George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5040 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120252  Prunus emarginata George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5041 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 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
  UCR120494  Gilia leptalea subsp. bicolor George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5072 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120495  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5073 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR120497  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5042 B Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120498  Madia minima George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5027 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120499  Deschampsia danthonioides George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5030 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120500  Linanthus harknessii George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5033 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR120502  Carex illota George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5029 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 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
  UCR120717  Sagina saginoides George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-30 5060 Placer Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road 1860 Comment
  UCR121481  Linanthus George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5021 D Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121482  Amelanchier utahensis George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5017 A Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121483  Apocynum androsaemifolium George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5017 B Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121484  Poa pratensis subsp. pratensis George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5018 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121485  Nemophila spatulata George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5019 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121486  Arabis holboellii var. retrofracta George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5020 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121487  Galium bifolium George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5021 A Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121488  Gilia capillaris George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5021 B Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121489  Plagiobothrys hispidulus George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5021 C Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR121490  Carex subfusca George K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5022 Placer Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  UCR123375  Euphorbia nutans George K. Helmkamp, E. A. Helmkamp 1999-6-29 5052 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
  UCR123376  Anagallis arvensis George K. Helmkamp, E. A. Helmkamp 1999-6-29 5055 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
  UCR123377  Euphorbia maculata George K. Helmkamp, E. A. Helmkamp 1999-6-29 5057 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
  UCR123378  Croton setiger George K. Helmkamp, E. A. Helmkamp 1999-6-29 5058 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
  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
  UCR123467  Kickxia elatine George K. Helmkamp, E. A. Helmkamp 1999-6-29 5053 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
  UCR130215  Potentilla glandulosa subsp. ashlandica George K. Helmkamp, E. A. Helmkamp 1999-6-30 5092 Placer Northern Sierra Nevada Mtns., Soda Springs Rd 0.9 mi south of Donner Pass Rd, approaching Ice Lakes 2104 Comment
  UCR130216  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1999-6-30 5093 Placer Northern Sierra Nevada Mtns., Soda Springs Rd 0.9 mi south of Donner Pass Rd, approaching Ice Lakes 2104 Comment
  UCR130217  Microseris nutans George K. Helmkamp, E. A. Helmkamp 1999-6-30 5095 Placer Northern Sierra Nevada Mtns., Soda Springs Rd 0.9 mi south of Donner Pass Rd, approaching Ice Lakes 2104 Comment
  UCR170318  Chenopodium berlandieri George K. Helmkamp, Elizabeth Helmkamp 2005-9-30 9952 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170635  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2005-9-30 9961 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170792  Lepidium campestre George K. Helmkamp, E. A. Helmkamp 2005-9-30 9959 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170802  Agrostis pallens George K. Helmkamp, E. A. Helmkamp 2005-9-30 9939 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170805  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2005-9-30 9949 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170806  Sidalcea malviflora subsp. asprella George K. Helmkamp, E. A. Helmkamp 2005-9-30 9950 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170809  Cornus sericea subsp. sericea George K. Helmkamp, E. A. Helmkamp 2005-9-30 9934 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170813  Phleum pratense George K. Helmkamp, E. A. Helmkamp 2005-9-30 9944 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170814  Grindelia hirsutula var. davyi George K. Helmkamp, E. A. Helmkamp 2005-9-30 9938 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170815  Pseudognaphalium canescens subsp. thermale George K. Helmkamp, E. A. Helmkamp 2005-9-30 9955 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170817  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2005-9-30 9940 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170818  Lepidium campestre George K. Helmkamp, E. A. Helmkamp 2005-9-30 9958 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170819  Elymus elongatus George K. Helmkamp, E. A. Helmkamp 2005-9-30 9954 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170820  Aster occidentalis var. yosemitanus George K. Helmkamp, E. A. Helmkamp 2005-9-30 9945 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170821  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2005-9-30 9946 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170823  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2005-9-30 9941 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170824  Arctostaphylos manzanita subsp. manzanita George K. Helmkamp, E. A. Helmkamp 2005-9-30 9942 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170827  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2005-9-30 9962 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR170828  Eriogonum wrightii var. subscaposum George K. Helmkamp, E. A. Helmkamp 2005-9-30 9935 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR170980  Senecio vulgaris George K. Helmkamp, E. A. Helmkamp 2006-2-9 10044 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR171020  Lamium amplexicaule George K. Helmkamp, E. A. Helmkamp 2006-2-9 10042 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR171021  Malus sylvestris George K. Helmkamp, E. A. Helmkamp 2006-2-9 10056 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR171023  Layia platyglossa George K. Helmkamp, E. A. Helmkamp 2006-2-9 10063 Placer Northern Central Valley, Clark Tunnel Road and Calif. Highway 193, east of Lincoln 113 Comment
  UCR171024  Raphanus sativus George K. Helmkamp, E. A. Helmkamp 2006-2-9 10062 Placer Northern Central Valley, Clark Tunnel Road and Calif. Highway 193, east of Lincoln 113 Comment
  UCR171025  Vicia sativa subsp. nigra George K. Helmkamp, E. A. Helmkamp 2006-2-9 10043 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR171026  Salix scouleriana George K. Helmkamp, E. A. Helmkamp 2006-2-9 10060 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR171027  Verbena bonariensis George K. Helmkamp, E. A. Helmkamp 2006-2-24 10073 Placer Northern Sacramento Valley, Wise Road just east of its junction with Calif. Highway 65; c. 1 mi SE of Ewing 47 Comment
  UCR171028  Stellaria media George K. Helmkamp, E. A. Helmkamp 2006-2-24 10072 Placer Northern Sacramento Valley, Wise Road just east of its junction with Calif. Highway 65; c. 1 mi SE of Ewing 47 Comment
  UCR171029  Veronica persica George K. Helmkamp, E. A. Helmkamp 2006-2-24 10071 Placer Northern Sacramento Valley, Wise Road just east of its junction with Calif. Highway 65; c. 1 mi SE of Ewing 47 Comment
  UCR171030  Senecio vulgaris George K. Helmkamp, E. A. Helmkamp 2006-2-24 10070 Placer Northern Sacramento Valley, Wise Road just east of its junction with Calif. Highway 65; c. 1 mi SE of Ewing 47 Comment
  UCR171031  Cardamine hirsuta George K. Helmkamp, E. A. Helmkamp 2006-2-24 10069 Placer Northern Sacramento Valley, Wise Road just east of its junction with Calif. Highway 65; c. 1 mi SE of Ewing 47 Comment
  UCR171033  Marah fabacea George K. Helmkamp, E. A. Helmkamp 2006-2-24 10067 Placer Sacramento Valley; edge of Sierra Nevada Foothills, Junction of Clark Tunnel Road and Calif. Highway 193, east of Lincoln 113 Comment
  UCR171034  Phleum pratense George K. Helmkamp, E. A. Helmkamp 2005-9-30 9957 Placer Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area) 2081 Comment
  UCR171206  Lamium amplexicaule George K. Helmkamp, E. A. Helmkamp 2006-2-24 10075 Placer Northern Sacramento Valley, Junction of Wise Road and Garden Bar Road east of Ewing 95 Comment
  UCR171207  Stellaria media George K. Helmkamp, E. A. Helmkamp 2006-2-24 10074 Placer Northern Sacramento Valley, Junction of Wise Road and Garden Bar Road east of Ewing 95 Comment
  UCR171333  Monardella odoratissima George K. Helmkamp, E. A. Helmkamp 2005-10-1 9982 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
  UCR171334  Linum lewisii var. lewisii George K. Helmkamp, E. A. Helmkamp 2005-10-1 9981 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
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Jan 15 2008
  UCR171336  Potentilla glandulosa George K. Helmkamp, E. A. Helmkamp 2005-10-1 9978 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
  UCR171337  Arctostaphylos nevadensis George K. Helmkamp, E. A. Helmkamp 2005-10-1 9977 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
  UCR171338  Potentilla fruticosa George K. Helmkamp, E. A. Helmkamp 2005-10-1 9975 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
  UCR171339  Madia glomerata George K. Helmkamp, E. A. Helmkamp 2005-10-1 9973 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
  UCR171340  Symphoricarpos rotundifolius var. rotundifolius George K. Helmkamp, E. A. Helmkamp 2005-10-1 9972 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
  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
  UCR171342  Nepeta racemosa George K. Helmkamp, E. A. Helmkamp 2005-10-1 9989 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
  UCR171343  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2005-10-1 9988 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
  UCR171344  Chenopodium botrys George K. Helmkamp, E. A. Helmkamp 2005-10-1 9987 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
  UCR171345  Penstemon George K. Helmkamp, E. A. Helmkamp 2005-10-1 9986 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
  UCR171346  Castilleja miniata subsp. miniata George K. Helmkamp, E. A. Helmkamp 2005-10-1 9985 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
  UCR171347  Sidalcea glaucescens George K. Helmkamp, E. A. Helmkamp 2005-10-1 9984 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
  UCR171348  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2005-10-1 9983 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
  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
  UCR171351  Matricaria matricarioides George K. Helmkamp, E. A. Helmkamp 2005-9-30 9967 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
  UCR171352  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2005-10-1 9990 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
  UCR171353  Arctostaphylos manzanita subsp. manzanita George K. Helmkamp, E. A. Helmkamp 2005-10-1 9991 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
  UCR171354  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2005-10-1 9993 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
  UCR171397  Pinus contorta subsp. murrayana George K. Helmkamp, E. A. Helmkamp 2005-10-1 9976 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
  UCR171398  Heterotheca oregona George K. Helmkamp, E. A. Helmkamp 2005-9-30 9969 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
  UCR171399  Poa leptocoma subsp. leptocoma George K. Helmkamp, E. A. Helmkamp 2005-9-30 9968 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
  UCR171400  Equisetum arvense George K. Helmkamp, E. A. Helmkamp 2005-9-30 9965 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
  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
  UCR171402  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2005-10-1 9970 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
  UCR171545  Claytonia perfoliata George K. Helmkamp, E. A. Helmkamp 2006-2-9 10058 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR171735  Stellaria media George K. Helmkamp, E. A. Helmkamp 2006-2-9 10059 Placer Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln 183 Comment
  UCR172648  Castilleja pruinosa George K. Helmkamp, Elizabeth Helmkamp 2006-4-13 10199 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
  UCR172649  Eschscholzia californica George K. Helmkamp, Elizabeth Helmkamp 2006-4-13 10198 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
  UCR172651  Hordeum murinum subsp. leporinum George K. Helmkamp, Elizabeth Helmkamp 2006-4-13 10196 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
  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
  UCR173174  Bromus diandrus George K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10129 Placer Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin 122 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
  UCR173177  Medicago polymorpha George 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
  UCR173250  Silene californica George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10457 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173251  Iris George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10454 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173252  Trifolium dubium George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10453 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173255  Polypodium calirhiza George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10450 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173256  Agoseris grandiflora George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10449 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173259  Trifolium hirtum George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10444 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173261  Dudleya cymosa subsp. cymosa George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10424 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173262  Gilia capitata subsp. mediomontana George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10425 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173263  Eriophyllum lanatum var. grandiflorum George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10426 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173264A  Torilis arvensis George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10427 A Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173265  Trifolium hirtum George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10428 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173266  Geranium dissectum George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10428 A Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173267  Lupinus albifrons var. collinus George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10429 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173268  Linum bienne George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10431 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173269  Dactylis glomerata George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10432 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR173271  Castilleja foliolosa George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10435 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173272  Clarkia purpurea subsp. quadrivulnera George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10436 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173273  Melica torreyana George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10437 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173274  Trifolium hirtum George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10438 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173275  Lupinus albifrons var. collinus George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10439 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173276  Lupinus microcarpus var. densiflorus George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10440 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173277  Eriophyllum lanatum var. grandiflorum George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10441 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173278  Geranium molle George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10442 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River 370 Comment
  UCR173279  Claytonia parviflora subsp. grandiflora George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10443 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173280  Calochortus albus George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10447 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR173516  Luzula comosa George K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10133 Placer Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin 122 Comment
  UCR173517  Lupinus nanus George K. Helmkamp, Elizabeth Helmkamp 2006-4-6 10131 Placer Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin 122 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
  UCR173729  Clarkia biloba subsp. brandegeeae George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10708 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173733  Madia citrigracilis George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10703 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173736  Eriophyllum lanatum var. croceum George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10704 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173737  Philadelphus lewisii George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10705 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173738  Calystegia occidentalis subsp. occidentalis George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10706 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173739  Euphorbia palmeri George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10707 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
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Mar 8 2012
  UCR173770  Erigeron foliosus var. hartwegii George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10718 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173771  Castilleja foliolosa George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10717 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173772  Adenostoma fasciculatum George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10716 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173787  Lupinus microcarpus var. microcarpus George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10715 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173788  Layia pentachaeta subsp. pentachaeta George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10714 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
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Jan 8 2013
  UCR173789  Keckiella breviflora subsp. breviflora George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10711 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR173791  Penstemon azureus George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10712 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR174012  Clarkia unguiculata George K. Helmkamp, Elizabeth A. Helmkamp 2006-6-14 10710 Placer Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide 488 Comment
  UCR176081  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2006-8-11 11212 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176249  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2006-8-11 11218 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176250  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2006-8-11 11217 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176255  Chondrilla juncea George K. Helmkamp, E. A. Helmkamp 2006-8-11 11206 Placer Northern Sierra Nevada Mtns foothills, along connecting road joining Forest Hill Rd. with the Calif. Hwy 49 crossing of American River 396 Comment
  UCR176259  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2006-8-11 11216 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176260  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2006-8-11 11215 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176261  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2006-8-11 11214 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176262  Pseudotsuga menziesii var. menziesii George K. Helmkamp, E. A. Helmkamp 2006-8-11 11213 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176263  Calocedrus decurrens George K. Helmkamp, E. A. Helmkamp 2006-8-11 11211 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR176264  Grindelia hirsutula var. davyi George K. Helmkamp, E. A. Helmkamp 2006-8-11 11209 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 1.0 mile north of Forest Hill 1037 Comment
  UCR176265  Cichorium intybus George K. Helmkamp, E. A. Helmkamp 2006-8-11 11208 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 1.0 mile north of Forest Hill 1037 Comment
  UCR176266  Hieracium scouleri George K. Helmkamp, E. A. Helmkamp 2006-8-11 11207 Placer Northern Sierra Nevada Mtns foothills, along the road to Clementine Lake, 0.8 mile north of Forest Hill Rd 422 Comment
  UCR176279  Fritillaria George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10448 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR176280  Lupinus benthamii George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10433 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 Comment
  UCR176281  Bromus hordeaceus George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10430 Placer Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49 293 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
  UCR176475  Viola lobata George K. Helmkamp, E. A. Helmkamp 2006-8-11 11210 Placer Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill 1311 Comment
  UCR177006  Cirsium George K. Helmkamp, E. A. Helmkamp 2005-10-1 9974 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
  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
  UCR177015  Sanicula crassicaulis George K. Helmkamp, Elizabeth Helmkamp 2006-5-13 10455 Placer Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road 422 Comment
  UCR177127  Pedicularis semibarbata George K. Helmkamp, E. A. Helmkamp 2005-10-1 9992 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
  UCR177128  Epilobium glaberrimum George K. Helmkamp, E. A. Helmkamp 2005-9-30 9943 Placer Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove) 1805 Comment
  UCR177232  Trifolium George K. Helmkamp, E. A. Helmkamp 2005-9-30 9966 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
  UCR177238  Erigeron inornatus George K. Helmkamp, E. A. Helmkamp 2005-10-1 9980 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
  UCR188841  Lupinus polyphyllus subsp. polyphyllus George K. Helmkamp, E. A. Helmkamp 2007-3-25 11708 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
  UCR188842  Castilleja foliolosa George K. Helmkamp, E. A. Helmkamp 2007-3-25 11715 Placer Foothills, Northern Sierra Nevada Mountains, Forest Hill Road at the junction with the unnamed road to Lake Clementine 457 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
  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
  UCR188850  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2007-3-25 11705 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
  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
  UCR189630  Sidalcea oregana subsp. spicata George 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
  UCR189631  Lupinus lepidus var. confertus George K. Helmkamp, E. A. Helmkamp 2007-7-27 12640 Placer Northern Sierra Nevada Mountains, 0.1 mile south of the Rainbow exit from Interstate-80, 0.5 miles east of Rainbow 1790 Comment
  UCR189632  Chenopodium botrys George K. Helmkamp, E. A. Helmkamp 2007-7-27 12627 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  UCR189635  Cornus sericea subsp. sericea George K. Helmkamp, E. A. Helmkamp 2007-7-27 12632 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  UCR189636  Thalictrum fendleri var. fendleri George K. Helmkamp, E. A. Helmkamp 2007-7-27 12633 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  UCR189639  Penstemon azureus var. azureus George K. Helmkamp, E. A. Helmkamp 2007-7-27 12624 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  UCR189640  Calyptridium umbellatum George K. Helmkamp, E. A. Helmkamp 2007-7-27 12635 Placer Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 1744 Comment
  UCR190136  Silene vulgaris George K. Helmkamp, E. A. Helmkamp 2007-9-14 12953 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190140  Cyperus eragrostis George K. Helmkamp, E. A. Helmkamp 2007-9-14 12950 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190147  Lathyrus latifolius George K. Helmkamp, E. A. Helmkamp 2007-9-14 12951 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190151  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2007-8-1 12642 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 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
  UCR190155  Erigeron inornatus var. inornatus George K. Helmkamp, E. A. Helmkamp 2007-8-1 12645 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 Comment
  UCR190156  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2007-8-1 12644 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 Comment
  UCR190160  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2007-8-1 12651 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 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
  UCR190222  Juncus ensifolius George K. Helmkamp, E. A. Helmkamp 2007-8-1 12647 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. 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
  UCR190224  Angelica breweri George K. Helmkamp, E. A. Helmkamp 2007-8-1 12649 Placer Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border 2151 Comment
  UCR190583  Brickellia californica George K. Helmkamp, E. A. Helmkamp 2007-9-14 12961 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 6 miles east of Foresthill 610 Comment
  UCR190584  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2007-9-14 12960 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 6 miles east of Foresthill 610 Comment
  UCR190585  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2007-9-14 12959 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190586  Juncus effusus var. exiguus George K. Helmkamp, E. A. Helmkamp 2007-9-14 12957 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190587  Robinia pseudoacacia George K. Helmkamp, E. A. Helmkamp 2007-9-14 12958 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 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
  UCR190656  Trientalis latifolia George K. Helmkamp, E. A. Helmkamp 2007-5-23 12082 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
  UCR190658  Gilia capitata subsp. mediomontana George K. Helmkamp, E. A. Helmkamp 2007-5-23 12080 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
  UCR190660  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2007-5-23 12071 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR190661  Potentilla glandulosa subsp. glandulosa George K. Helmkamp, E. A. Helmkamp 2007-5-23 12072 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR190662  Brassica geniculata George K. Helmkamp, E. A. Helmkamp 2007-5-23 12074 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
  UCR190663  Vicia americana George K. Helmkamp, E. A. Helmkamp 2007-5-23 12073 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR190664  Madia exigua George K. Helmkamp, E. A. Helmkamp 2007-5-23 12075 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
  UCR190665  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2007-5-23 12076 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
  UCR190666  Quercus chrysolepis George K. Helmkamp, E. A. Helmkamp 2007-9-14 12962 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 6 miles east of Foresthill 610 Comment
  UCR190667  Arctostaphylos viscida subsp. viscida George K. Helmkamp, E. A. Helmkamp 2007-5-23 12078 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
  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
  UCR190691  Chondrilla juncea George K. Helmkamp, E. A. Helmkamp 2007-9-14 12965 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 15 miles east of Foresthill 832 Comment
  UCR190699  Epilobium ciliatum subsp. ciliatum George K. Helmkamp, E. A. Helmkamp 2007-9-14 12956 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190702  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2007-9-14 12966 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 15 miles east of Foresthill 832 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
  UCR190712  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2007-9-14 12954 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190713  Euphorbia serpillifolia George K. Helmkamp, E. A. Helmkamp 2007-9-14 12952 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill 942 Comment
  UCR190845  Ceanothus integerrimus George K. Helmkamp, E. A. Helmkamp 2007-5-23 12066 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR190847  Prunus emarginata George K. Helmkamp, E. A. Helmkamp 2007-5-23 12063 Placer Northern Sierra Nevada Mountains, Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 Comment
  UCR190848  Sanicula tuberosa George 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
  UCR190919  Festuca arundinacea George K. Helmkamp, E. A. Helmkamp 2007-5-23 12070 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR190920  Iris hartwegii subsp. hartwegii George K. Helmkamp, E. A. Helmkamp 2007-5-23 12069 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR190921  Rhamnus rubra George K. Helmkamp, E. A. Helmkamp 2007-5-23 12068 Placer Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road 1360 Comment
  UCR191056  Muilla maritima George K. Helmkamp, E. A. Helmkamp 2007-5-23 12048 Placer Northern Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.3 miles northeast of Foresthill 1116 Comment
  UCR191057  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2007-5-23 12049 Placer Northern Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.3 miles northeast of Foresthill 1116 Comment
  UCR191058  Viola lobata var. lobata George K. Helmkamp, E. A. Helmkamp 2007-5-23 12050 Placer Northern Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.3 miles northeast of Foresthill 1116 Comment
  UCR191059  Chamaebatia foliolosa George K. Helmkamp, E. A. Helmkamp 2007-5-23 12051 Placer Northern Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.3 miles northeast of Foresthill 1116 Comment
  UCR191060  Rosa bridgesii George K. Helmkamp, E. A. Helmkamp 2007-5-23 12052 Placer Northern Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.3 miles northeast of Foresthill 1116 Comment
  UCR191061  Rubus glaucifolius George 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
  UCR191065  Senecio aronicoides George K. Helmkamp, E. A. Helmkamp 2007-5-23 12065 Placer Northern Sierra Nevada Mountains, Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 Comment
  UCR191070  Carex densa George K. Helmkamp, E. A. Helmkamp 2007-5-23 12083 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
  UCR191071  Carex fracta George 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
  UCR191073  Arenaria serpyllifolia George K. Helmkamp, E. A. Helmkamp 2007-5-23 12056 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 11.1 miles northeast of Foresthill 1463 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
  UCR191075  Viola tomentosa George K. Helmkamp, E. A. Helmkamp 2007-5-23 12058 Placer Northern Sierra Nevada Mountains, Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 Comment
  UCR191077  Delphinium nuttallianum George K. Helmkamp, E. A. Helmkamp 2007-5-23 12060 Placer Northern Sierra Nevada Mountains, Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 Comment
  UCR191078  Horkelia tridentata subsp. tridentata George K. Helmkamp, E. A. Helmkamp 2007-5-23 12061 Placer Northern Sierra Nevada Mountains, Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville 1576 Comment
  UCR191087  Cornus sericea subsp. occidentalis George K. Helmkamp, E. A. Helmkamp 2007-6-12 12320 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 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
  UCR191089  Aquilegia formosa George K. Helmkamp, E. A. Helmkamp 2007-6-12 12322 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191090  Lepidium virginicum var. virginicum George K. Helmkamp, E. A. Helmkamp 2007-6-12 12323 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191091  Smilacina racemosa George K. Helmkamp, E. A. Helmkamp 2007-6-12 12314 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191096  Carex subfusca George K. Helmkamp, E. A. Helmkamp 2007-6-12 12324 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191103  Senecio integerrimus var. major George 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
  UCR191104  Calochortus leichtlinii George K. Helmkamp, E. A. Helmkamp 2007-6-12 12327 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191105  Polygonum phytolaccifolium George K. Helmkamp, E. A. Helmkamp 2007-6-12 12326 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191106  Arabis holboellii var. pinetorum George K. Helmkamp, E. A. Helmkamp 2007-6-12 12325 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191108  Barbarea orthoceras George K. Helmkamp, E. A. Helmkamp 2007-6-12 12319 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191109  Silene lemmonii George K. Helmkamp, E. A. Helmkamp 2007-6-12 12318 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191110  Potentilla glandulosa subsp. ashlandica George K. Helmkamp, E. A. Helmkamp 2007-6-12 12317 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR191131  Allophyllum integrifolium George K. Helmkamp, E. A. Helmkamp 2007-6-12 12316 Placer Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20 1610 Comment
  UCR193279  Polystichum imbricans George K. Helmkamp, E. A. Helmkamp 2007-5-30 12186 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 Comment
  UCR193282  Polystichum imbricans George K. Helmkamp, E. A. Helmkamp 2007-5-30 12173 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill 588 Comment
  UCR193296  Clarkia biloba subsp. brandegeeae George K. Helmkamp, E. A. Helmkamp 2007-5-30 12179 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill 588 Comment
  UCR193308  Galium aparine George K. Helmkamp, E. A. Helmkamp 2007-5-30 12184 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 Comment
  UCR193311  Hieracium albiflorum George K. Helmkamp, E. A. Helmkamp 2007-5-30 12187 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 Comment
  UCR193331  Trientalis latifolia George K. Helmkamp, E. A. Helmkamp 2007-5-30 12189 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 Comment
  UCR193332  Erigeron foliosus var. hartwegii George K. Helmkamp, E. A. Helmkamp 2007-5-30 12190 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 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
  UCR193335  Erigeron foliosus var. hartwegii George K. Helmkamp, E. A. Helmkamp 2007-5-30 12194 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
  UCR193336  Streptanthus tortuosus var. orbiculatus George K. Helmkamp, E. A. Helmkamp 2007-5-30 12174 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill 588 Comment
  UCR193340  Galium porrigens var. tenue George K. Helmkamp, E. A. Helmkamp 2007-5-30 12178 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill 588 Comment
  UCR193354  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2007-5-30 12181 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill 588 Comment
  UCR193362  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2007-5-30 12183 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 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
  UCR193395  Apocynum androsaemifolium George K. Helmkamp, E. A. Helmkamp 2007-5-30 12209 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill 488 Comment
  UCR193396  Silene californica George K. Helmkamp, E. A. Helmkamp 2007-5-30 12195 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
  UCR193397  Potentilla glandulosa subsp. glandulosa George K. Helmkamp, E. A. Helmkamp 2007-5-30 12196 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
  UCR193398  Poa secunda var. secunda George K. Helmkamp, E. A. Helmkamp 2007-5-30 12197 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
  UCR193399  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2007-5-30 12198 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
  UCR193400  Gilia capitata subsp. mediomontana George K. Helmkamp, E. A. Helmkamp 2007-5-30 12199 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
  UCR193402  Clarkia rhomboidea George K. Helmkamp, E. A. Helmkamp 2007-5-30 12188 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River 800 Comment
  UCR193599  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-30 12180 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill 588 Comment
  UCR19394  Gnaphalium palustre George K. Helmkamp, E. A. Helmkamp 2012-9-25 19905 Placer Northern Sierra Nevada Mountains, Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon-Nyack Airport 1473 Comment
  UCR194697  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2007-5-30 12210 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill 488 Comment
  UCR194698  Castilleja affinis subsp. affinis George K. Helmkamp, E. A. Helmkamp 2007-5-30 12201 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
  UCR194699  Trifolium microcephalum George K. Helmkamp, E. A. Helmkamp 2007-5-30 12203 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
  UCR194700  Eriophyllum lanatum var. croceum George K. Helmkamp, E. A. Helmkamp 2007-5-30 12205 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
  UCR194701  Monardella sheltonii George K. Helmkamp, E. A. Helmkamp 2007-5-30 12206 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill 488 Comment
  UCR194702  Grindelia hirsutula var. davyi George K. Helmkamp, E. A. Helmkamp 2007-5-30 12207 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill 488 Comment
  UCR194705  Daucus carota George K. Helmkamp, E. A. Helmkamp 2007-10-28 13104 Placer Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln 27 Comment
  UCR194706  Verbena litoralis George K. Helmkamp, E. A. Helmkamp 2007-10-28 13105 Placer Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln 27 Comment
  UCR194930  Castilleja subinclusa subsp. subinclusa George K. Helmkamp, E. A. Helmkamp 2007-5-18 12013 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194931  Lomatium utriculatum George K. Helmkamp, E. A. Helmkamp 2007-5-18 12012 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 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
  UCR194933  Phacelia mutabilis George K. Helmkamp, E. A. Helmkamp 2007-5-18 12020 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194934  Trifolium ciliolatum George K. Helmkamp, E. A. Helmkamp 2007-5-18 12019 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194935  Madia elegans subsp. vernalis George K. Helmkamp, E. A. Helmkamp 2007-5-18 12018 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194936  Hesperolinon californicum George K. Helmkamp, E. A. Helmkamp 2007-5-18 12017 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194937  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2007-5-18 12016 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194938  Lotus humistratus George K. Helmkamp, E. A. Helmkamp 2007-5-18 12014 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194939  Lathyrus sulphureus George K. Helmkamp, E. A. Helmkamp 2007-5-18 12004 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194940  Asclepias cordifolia George K. Helmkamp, E. A. Helmkamp 2007-5-18 12009 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194942  Lathyrus nevadensis subsp. nevadensis George K. Helmkamp, E. A. Helmkamp 2007-5-18 12030 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
  UCR194943  Lotus scoparius var. scoparius George K. Helmkamp, E. A. Helmkamp 2007-5-18 12036 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
  UCR194944  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2007-5-18 12040 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
  UCR194946  Vicia George K. Helmkamp, E. A. Helmkamp 2007-5-18 12034 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
  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
  UCR194948  Calystegia occidentalis subsp. occidentalis George K. Helmkamp, E. A. Helmkamp 2007-5-18 12003 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194949  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2007-5-18 12023 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194950  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2007-5-18 12021 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194952  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2007-5-18 12025 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194953  Rumex pulcher George K. Helmkamp, E. A. Helmkamp 2007-5-18 12002 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
  UCR194954  Chorizanthe membranacea George K. Helmkamp, E. A. Helmkamp 2007-5-18 12038 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
  UCR194956  Lithophragma bolanderi George K. Helmkamp, E. A. Helmkamp 2007-5-18 12033 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
  UCR194957  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2007-5-18 12035 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
  UCR194958  Trifolium bifidum var. decipiens George K. Helmkamp, E. A. Helmkamp 2007-5-18 12031 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
  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
  UCR194960  Lupinus adsurgens George K. Helmkamp, E. A. Helmkamp 2007-5-18 12008 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194961  Madia exigua George K. Helmkamp, E. A. Helmkamp 2007-5-18 12007 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR194963  Filago gallica George K. Helmkamp, E. A. Helmkamp 2007-5-18 12026 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194964  Trifolium microcephalum George K. Helmkamp, E. A. Helmkamp 2007-5-18 12027 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 Comment
  UCR194965  Claytonia perfoliata subsp. perfoliata George K. Helmkamp, E. A. Helmkamp 2007-5-18 12028 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
  UCR194967  Ailanthus altissima George K. Helmkamp, E. A. Helmkamp 2007-5-18 12024 Placer Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill 793 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
  UCR194969  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2007-5-18 12000 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
  UCR194970  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 2007-5-18 12001 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
  UCR194971  Cichorium intybus George K. Helmkamp, E. A. Helmkamp 2007-10-28 13108 Placer Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln 27 Comment
  UCR194972  Xanthium strumarium George K. Helmkamp, E. A. Helmkamp 2007-10-28 13109 Placer Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln 27 Comment
  UCR194973  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2007-10-28 13110 Placer Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln 27 Comment
  UCR194974  Calochortus albus George K. Helmkamp, E. A. Helmkamp 2007-5-18 11998 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
  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
  UCR194977  Triteleia ixioides subsp. anilina George K. Helmkamp, E. A. Helmkamp 2007-5-18 11997 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
  UCR195170  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2007-5-18 12006 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill 814 Comment
  UCR197278  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp 2008-4-17 13295 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198410  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2008-4-17 13297 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
  UCR198413  Brodiaea minor George K. Helmkamp, E. A. Helmkamp 2008-4-17 13284 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198414  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2008-4-17 13292 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198415  Psilocarphus brevissimus var. brevissimus George K. Helmkamp, E. A. Helmkamp 2008-4-17 13289 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198416  Leontodon taraxacoides George K. Helmkamp, E. A. Helmkamp 2008-4-17 13291 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198417  Plagiobothrys stipitatus var. stipitatus George K. Helmkamp, E. A. Helmkamp 2008-4-17 13285 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198418  Triphysaria pusilla George K. Helmkamp, E. A. Helmkamp 2008-4-17 13286 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 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
  UCR198528  Downingia ornatissima var. ornatissima George K. Helmkamp, E. A. Helmkamp 2008-4-17 13282 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198529  Limnanthes alba subsp. alba George K. Helmkamp, E. A. Helmkamp 2008-4-17 13290 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198532  Plagiobothrys stipitatus var. micranthus George K. Helmkamp, E. A. Helmkamp 2008-4-17 13294 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198536  Navarretia leucocephala subsp. leucocephala George K. Helmkamp, E. A. Helmkamp 2008-4-17 13287 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 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
  UCR198539  Lasthenia fremontii George K. Helmkamp, E. A. Helmkamp 2008-4-17 13283 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR198564  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2008-4-17 13293 Placer Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan 37 Comment
  UCR200855  Chenopodium botrys George K. Helmkamp, E. A. Helmkamp 2008-9-15 14098 Placer Foothills, northern Sierra Nevada Mountains, along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill 773 Comment
  UCR200856  Rhamnus tomentella subsp. tomentella George K. Helmkamp, E. A. Helmkamp 2008-9-15 14099 Placer Foothills, northern Sierra Nevada Mountains, along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill 773 Comment
  UCR200859  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2008-9-15 14103 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200861  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2008-9-15 14105 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 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
  UCR200863  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2008-9-15 14119 Placer Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill 1707 Comment
  UCR200864  Platanthera leucostachys George K. Helmkamp, E. A. Helmkamp 2008-9-15 14118 Placer Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill 1707 Comment
  UCR200865  Campanula prenanthoides George K. Helmkamp, E. A. Helmkamp 2008-9-15 14114 Placer Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill 1707 Comment
  UCR200866  Hypericum concinnum George K. Helmkamp, E. A. Helmkamp 2008-9-15 14120 Placer Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill 1707 Comment
  UCR200867  Cornus sericea subsp. sericea George K. Helmkamp, E. A. Helmkamp 2008-9-15 14106 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200868  Pseudognaphalium canescens subsp. thermale George K. Helmkamp, E. A. Helmkamp 2008-9-15 14108 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200869  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2008-9-15 14117 Placer Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill 1707 Comment
  UCR200871  Leucothoe davisiae George K. Helmkamp, E. A. Helmkamp 2008-9-15 14113 Placer Northern Sierra Nevada Mountains, Forestry route 43, 0.3 mile southeast of the east end of Foresthill Road at the junction to Soda Springs, junction is 27 miles northeast of Forest Hill City 2061 Comment
  UCR200872  Chrysolepis sempervirens George K. Helmkamp, E. A. Helmkamp 2008-9-15 14112 Placer Northern Sierra Nevada Mountains, Forestry route 43, 0.3 mile southeast of the east end of Foresthill Road at the junction to Soda Springs, junction is 27 miles northeast of Forest Hill City 2061 Comment
  UCR200873  Pinus lambertiana George K. Helmkamp, E. A. Helmkamp 2008-9-15 14111 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200874  Arctostaphylos patula George K. Helmkamp, E. A. Helmkamp 2008-9-15 14110 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200875  Eriogonum nudum var. deductum George K. Helmkamp, E. A. Helmkamp 2008-9-15 14107 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200876  Ribes roezlii var. roezlii George K. Helmkamp, E. A. Helmkamp 2008-9-15 14109 Placer Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill 1954 Comment
  UCR200877  Heteromeles arbutifolia George K. Helmkamp, E. A. Helmkamp 2008-9-15 14094 Placer Foothills, northern Sierra Nevada Mountains, along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill 773 Comment
  UCR200878  Oenothera elata subsp. hirsutissima George K. Helmkamp, E. A. Helmkamp 2008-9-15 14096 Placer Foothills, northern Sierra Nevada Mountains, along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill 773 Comment
  UCR200879  Epilobium brachycarpum George K. Helmkamp, E. A. Helmkamp 2008-9-15 14097 Placer Foothills, northern Sierra Nevada Mountains, along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill 773 Comment
  UCR201514  Castilleja miniata subsp. miniata George K. Helmkamp, E. A. Helmkamp 2008-8-20 14026 Placer Northern Sierra Nevada Mountains, Donner Pass Road on the west side of Donner Pass and east of Norden 2149 Comment
  UCR201515  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2008-8-20 14021 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  UCR201516  Cornus sericea subsp. sericea George K. Helmkamp, E. A. Helmkamp 2008-8-20 14020 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 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
  UCR201521  Solidago canadensis subsp. elongata George K. Helmkamp, E. A. Helmkamp 2008-8-20 14014 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  UCR201522  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2008-8-20 14013 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  UCR201523  Pinus contorta subsp. murrayana George K. Helmkamp, E. A. Helmkamp 2008-8-20 14012 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  UCR201762  Sorbus scopulina George K. Helmkamp, E. A. Helmkamp 2008-8-20 14018 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  UCR201892  Aster foliaceus var. parryi George K. Helmkamp, E. A. Helmkamp 2008-8-20 14025 Placer Northern Sierra Nevada Mountains, Donner Pass Road on the west side of Donner Pass and east of Norden 2149 Comment
  UCR201893  Aster eatonii George K. Helmkamp, E. A. Helmkamp 2008-8-20 14022 Placer Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River 1811 Comment
  UCR201895  Hypericum concinnum George 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
  UCR201902  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2008-8-20 14031 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
  UCR201908  Eriogonum wrightii var. subscaposum George K. Helmkamp, E. A. Helmkamp 2008-8-20 14023 Placer Northern Sierra Nevada Mountains, Donner Pass Road on the west side of Donner Pass and east of Norden 2149 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
  UCR201917  Juncus chlorocephalus George K. Helmkamp, E. A. Helmkamp 2008-8-20 14035 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
  UCR201920  Chrysothamnus nauseosus subsp. albicaulis George K. Helmkamp, E. A. Helmkamp 2008-8-20 14029 Placer Northern Sierra Nevada Mountains, Donner Pass Road on the west side of Donner Pass and east of Norden 2149 Comment
  UCR201931  Lotus uliginosus George K. Helmkamp, E. A. Helmkamp 2008-8-20 14024 Placer Northern Sierra Nevada Mountains, Donner Pass Road on the west side of Donner Pass and east of Norden 2149 Comment
  UCR201935  Perideridia lemmonii George K. Helmkamp, E. A. Helmkamp 2008-8-20 14032 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
  UCR202651  Epilobium densiflorum George K. Helmkamp 1999-6-29 5056 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
  UCR206357  Triphysaria eriantha subsp. eriantha George K. Helmkamp, E. A. Helmkamp 2009-3-11 14386 Placer Sacramento Valley, Ranch House Road, 0.2 mile south of Sheridan 37 Comment
  UCR206358  Spergula arvensis subsp. arvensis George K. Helmkamp, E. A. Helmkamp 2009-3-11 14385 Placer Sacramento Valley, Ranch House Road, 0.2 mile south of Sheridan 37 Comment
  UCR206367  Cerastium glomeratum George K. Helmkamp, E. A. Helmkamp 2009-3-11 14388 Placer Sacramento Valley, Ranch House Road, 0.2 mile south of Sheridan 37 Comment
  UCR206574  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2009-7-16 15201 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 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
  UCR206595  Apocynum androsaemifolium George K. Helmkamp, E. A. Helmkamp 2009-7-16 15208 Placer Sierra Nevada Mountains, Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  UCR206673  Spiraea densiflora George K. Helmkamp, E. A. Helmkamp 2009-7-16 15193 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206674  Erigeron inornatus var. inornatus George K. Helmkamp, E. A. Helmkamp 2009-7-16 15194 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206677  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15191 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206688  Mimulus torreyi George K. Helmkamp, E. A. Helmkamp 2009-7-16 15196 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206716  Boykinia major George K. Helmkamp, E. A. Helmkamp 2009-7-16 15209 Placer Sierra Nevada Mountains, Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  UCR206717  Juncus saximontanus George K. Helmkamp, E. A. Helmkamp 2009-7-16 15204 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206718  Prunella vulgaris var. lanceolata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15205 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206719  Deschampsia elongata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15206 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206725  Draperia systyla George K. Helmkamp, E. A. Helmkamp 2009-7-16 15192 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206726  Hieracium albiflorum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15202 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206756  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15207 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206782  Erysimum capitatum var. capitatum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15214 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
  UCR206783  Angelica breweri George K. Helmkamp, E. A. Helmkamp 2009-7-16 15213 Placer Sierra Nevada Mountains, Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  UCR206834  Agrostis capillaris George K. Helmkamp, E. A. Helmkamp 2009-7-16 15212 Placer Sierra Nevada Mountains, Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  UCR206835  Castilleja affinis var. affinis George K. Helmkamp, E. A. Helmkamp 2009-7-16 15211 Placer Sierra Nevada Mountains, Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point 1698 Comment
  UCR206857  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2009-7-16 15200 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206875  Pseudognaphalium canescens subsp. thermale George K. Helmkamp, E. A. Helmkamp 2009-7-16 15199 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR206876  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2009-7-16 15197 Placer Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill 1704 Comment
  UCR207043  Eucephalus breweri George K. Helmkamp, E. A. Helmkamp 2009-7-16 15228 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207044  Phacelia hastata var. hastata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15240 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207102  Wyethia mollis George K. Helmkamp, E. A. Helmkamp 2009-7-16 15238 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207105  Eriogonum ursinum var. ursinum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15227 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
  UCR207106  Phacelia hydrophylloides George K. Helmkamp, E. A. Helmkamp 2009-7-16 15231 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207108  Sanicula tuberosa George K. Helmkamp, E. A. Helmkamp 2009-7-16 15226 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
  UCR207110  Ligusticum grayi George K. Helmkamp, E. A. Helmkamp 2009-7-16 15232 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207111  Erigeron peregrinus subsp. callianthemus George K. Helmkamp, E. A. Helmkamp 2009-7-16 15230 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207112  Polygonum bistortoides George K. Helmkamp, E. A. Helmkamp 2009-7-16 15239 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207113  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15216 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
  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
  UCR207115  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2009-7-16 15217 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
  UCR207117  Gilia leptalea subsp. bicolor George K. Helmkamp, E. A. Helmkamp 2009-7-16 15224 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
  UCR207119  Eriogonum spergulinum var. reddingianum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15241 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207120  Potentilla gracilis var. fastigiata George K. Helmkamp, E. A. Helmkamp 2009-7-16 15235 Placer Sierra Nevada Mountains, Robinson Flat, a camping and day-use area at the junction of Forest Hill and Soda Springs Roads 2107 Comment
  UCR207122  Calyptridium monospermum George K. Helmkamp, E. A. Helmkamp 2009-7-16 15219 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
  UCR207123  Ipomopsis aggregata subsp. formosissima George K. Helmkamp, E. A. Helmkamp 2009-7-16 15220 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
  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
  UCR207126  Chaenactis douglasii var. douglasii George K. Helmkamp, E. A. Helmkamp 2009-7-16 15215 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
  UCR207848  Vicia villosa subsp. villosa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14560 Placer Sierra Nevada Mountains Foothills, Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River 277 Comment
  UCR207849  Lotus humistratus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14559 Placer Sierra Nevada Mountains Foothills, Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River 277 Comment
  UCR207851  Eschscholzia californica George K. Helmkamp, E. A. Helmkamp 2009-4-22 14557 Placer Sierra Nevada Mountains Foothills, Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River 277 Comment
  UCR207852  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2009-4-22 14556 A Placer Sierra Nevada Mountains Foothills, Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River 277 Comment
  UCR207853  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14556 Placer Sierra Nevada Mountains Foothills, Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River 277 Comment
  UCR207854  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
  UCR207855  Thysanocarpus curvipes George K. Helmkamp, E. A. Helmkamp 2009-4-22 14566 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
  UCR207856  Medicago polymorpha George K. Helmkamp, E. A. Helmkamp 2009-4-22 14565 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
  UCR207857  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2009-4-22 14564 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
  UCR207858  Gilia capitata subsp. mediomontana George K. Helmkamp, E. A. Helmkamp 2009-4-22 14563 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
  UCR207859  Lupinus microcarpus var. densiflorus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14562 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
  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
  UCR207861  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14568 Placer Sierra Nevada Mountains Foothills, town of Foresthill, along Forest Hill Road 988 Comment
  UCR207870  Petrorhagia dubia George K. Helmkamp, E. A. Helmkamp 2009-4-22 14576 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207871  Micropus californicus var. californicus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14578 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 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
  UCR207882  Lomatium utriculatum George K. Helmkamp, E. A. Helmkamp 2009-4-22 14574 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207883  Dichelostemma volubile George K. Helmkamp, E. A. Helmkamp 2009-4-22 14575 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207884  Melica torreyana George K. Helmkamp, E. A. Helmkamp 2009-4-22 14579 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207886  Amsinckia retrorsa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14581 Placer Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake 732 Comment
  UCR207887  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2009-4-22 14569 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207888  Calochortus albus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14571 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207889  Trifolium incarnatum George K. Helmkamp, E. A. Helmkamp 2009-4-22 14572 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207890  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, E. A. Helmkamp 2009-4-22 14573 Placer Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road 448 Comment
  UCR207898  Gilia tricolor subsp. diffusa George K. Helmkamp, E. A. Helmkamp 2009-4-22 14582 Placer Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake 732 Comment
  UCR207899  Plagiobothrys nothofulvus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14583 Placer Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake 732 Comment
  UCR207900  Lotus denticulatus George K. Helmkamp, E. A. Helmkamp 2009-4-22 14584 Placer Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake 732 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
  UCR208264  Plectritis brachystemon George K. Helmkamp, E. A. Helmkamp 2009-5-7 14631 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 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
  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
  UCR208267  Styrax officinalis var. redivivus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14648 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill 476 Comment
  UCR208268  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14649 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill 476 Comment
  UCR208270  Lithophragma affine George K. Helmkamp, E. A. Helmkamp 2009-5-7 14636 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208271  Saxifraga californica George K. Helmkamp, E. A. Helmkamp 2009-5-7 14637 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208273  Thysanocarpus curvipes George K. Helmkamp, E. A. Helmkamp 2009-5-7 14639 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208274  Castilleja pruinosa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14641 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208275  Delphinium gracilentum George K. Helmkamp, E. A. Helmkamp 2009-5-7 14642 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208277  Caucalis microcarpa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14634 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 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
  UCR208279  Nemophila parviflora var. austiniae George K. Helmkamp, E. A. Helmkamp 2009-5-7 14633 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208281  Stellaria media George K. Helmkamp, E. A. Helmkamp 2009-5-7 14635 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208539  Melica bulbosa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14612 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208541  Dudleya cymosa subsp. cymosa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14610 A Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208542  Lotus argophyllus var. fremontii George K. Helmkamp, E. A. Helmkamp 2009-5-7 14610 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208543  Pentagramma triangularis subsp. triangularis George K. Helmkamp, E. A. Helmkamp 2009-5-7 14609 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208544  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2009-5-11 14672 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208545  Calystegia occidentalis subsp. occidentalis George K. Helmkamp, E. A. Helmkamp 2009-5-11 14673 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208546  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2009-5-11 14674 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208547  Anthriscus caucalis George K. Helmkamp, E. A. Helmkamp 2009-5-11 14675 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208548  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2009-5-11 14676 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208549  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2009-5-11 14677 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208551  Sanicula bipinnatifida George K. Helmkamp, E. A. Helmkamp 2009-5-11 14666 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 2.7 miles south of its junction with Forest Hill Road. c. 0.15 mi. NNW of site of Michigan Bluff 1101 Comment
  UCR208552  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 2009-5-11 14667 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 2.7 miles south of its junction with Forest Hill Road. c. 0.15 mi. NNW of site of Michigan Bluff 1101 Comment
  UCR208553  Calochortus monophyllus George K. Helmkamp, E. A. Helmkamp 2009-5-11 14668 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 2.7 miles south of its junction with Forest Hill Road. c. 0.15 mi. NNW of site of Michigan Bluff 1101 Comment
  UCR208554  Lathyrus sulphureus George K. Helmkamp, E. A. Helmkamp 2009-5-11 14669 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 2.7 miles south of its junction with Forest Hill Road. c. 0.15 mi. NNW of site of Michigan Bluff 1101 Comment
  UCR208555  Clarkia affinis George K. Helmkamp, E. A. Helmkamp 2009-5-11 14670 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208556  Eriodictyon californicum George K. Helmkamp, E. A. Helmkamp 2009-5-11 14671 Placer Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn 517 Comment
  UCR208557  Taraxacum officinale George K. Helmkamp, E. A. Helmkamp 2009-5-11 14657 Placer Sierra Nevada Mountains Foothills, junction of Forest Hill Road and Chicken Hawk Road, northeast of the city of Foresthill 1338 Comment
  UCR208558  Poa bulbosa George K. Helmkamp, E. A. Helmkamp 2009-5-11 14658 Placer Sierra Nevada Mountains Foothills, junction of Forest Hill Road and Chicken Hawk Road, northeast of the city of Foresthill 1338 Comment
  UCR208566  Eriophyllum lanatum var. croceum George K. Helmkamp, E. A. Helmkamp 2009-5-7 14604 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 4.4 miles east of its junction with Forest Hill Road in Foresthill 805 Comment
  UCR208572  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14608 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208573  Lupinus albifrons var. collinus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14607 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 4.4 miles east of its junction with Forest Hill Road in Foresthill 805 Comment
  UCR208575  Trifolium microcephalum George K. Helmkamp, E. A. Helmkamp 2009-5-7 14605 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 4.4 miles east of its junction with Forest Hill Road in Foresthill 805 Comment
  UCR208577  Castilleja attenuata George K. Helmkamp, E. A. Helmkamp 2009-5-7 14623 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
  UCR208580  Trifolium campestre George K. Helmkamp, E. A. Helmkamp 2009-5-7 14619 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
  UCR208583  Pellaea mucronata George K. Helmkamp, E. A. Helmkamp 2009-5-7 14625 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
  UCR208584  Ceanothus prostratus George K. Helmkamp, E. A. Helmkamp 2009-5-11 14656 Placer Sierra Nevada Mountains Foothills, junction of Forest Hill Road and Chicken Hawk Road, northeast of the city of Foresthill 1338 Comment
  UCR208586  Iris hartwegii subsp. hartwegii George K. Helmkamp, E. A. Helmkamp 2009-5-11 14653 Placer Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.5 miles northeast of Foresthill 1073 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
  UCR208588  Horkelia tridentata subsp. flavescens George K. Helmkamp, E. A. Helmkamp 2009-5-11 14651 Placer Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.5 miles northeast of Foresthill 1073 Comment
  UCR208589  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2009-5-11 14665 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 2.7 miles south of its junction with Forest Hill Road. c. 0.15 mi. NNW of site of Michigan Bluff 1101 Comment
  UCR208590  Barbarea verna George K. Helmkamp, E. A. Helmkamp 2009-5-11 14663 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 0.8 mile south of its junction with Foresthill Road, NE of the city of Foresthill 1159 Comment
  UCR208591  Poa bulbosa George K. Helmkamp, E. A. Helmkamp 2009-5-11 14662 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 0.8 mile south of its junction with Foresthill Road, NE of the city of Foresthill 1159 Comment
  UCR208593  Acer macrophyllum George K. Helmkamp, E. A. Helmkamp 2009-5-11 14660 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 0.8 mile south of its junction with Foresthill Road, NE of the city of Foresthill 1159 Comment
  UCR208594  Pseudotsuga menziesii var. menziesii George K. Helmkamp, E. A. Helmkamp 2009-5-11 14659 Placer Sierra Nevada Mountains Foothills, junction of Forest Hill Road and Chicken Hawk Road, northeast of the city of Foresthill 1338 Comment
  UCR208599  Potentilla glandulosa subsp. glandulosa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14627 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR208600  Kumlienia hystricula George K. Helmkamp, E. A. Helmkamp 2009-5-7 14630 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 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
  UCR208603  Eschscholzia caespitosa George K. Helmkamp, E. A. Helmkamp 2009-5-7 14624 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
  UCR208604  Cryptantha flaccida George K. Helmkamp, E. A. Helmkamp 2009-5-7 14613 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208606  Trifolium willdenovii George K. Helmkamp, E. A. Helmkamp 2009-5-7 14618 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208607  Viola purpurea subsp. integrifolia George K. Helmkamp, E. A. Helmkamp 2009-5-11 14655 Placer Sierra Nevada Mountains Foothills, junction of Forest Hill Road and Chicken Hawk Road, northeast of the city of Foresthill 1338 Comment
  UCR208608  Viola lobata George K. Helmkamp, E. A. Helmkamp 2009-5-11 14650 Placer Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.5 miles northeast of Foresthill 1073 Comment
  UCR208609  Dicentra formosa George K. Helmkamp, E. A. Helmkamp 2009-5-11 14664 Placer Sierra Nevada Mountains Foothills, Michigan Bluff Road, 0.8 mile south of its junction with Foresthill Road, NE of the city of Foresthill 1159 Comment
  UCR208610  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2009-5-7 14626 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
  UCR208611  Collinsia tinctoria George K. Helmkamp, E. A. Helmkamp 2009-5-7 14617 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208612  Erigeron foliosus var. hartwegii George K. Helmkamp, E. A. Helmkamp 2009-5-7 14616 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR208613  Lotus micranthus George K. Helmkamp, E. A. Helmkamp 2009-5-7 14614 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill 433 Comment
  UCR209007  Lomatium utriculatum George K. Helmkamp, E. A. Helmkamp 2009-5-7 14628 Placer Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill 771 Comment
  UCR209587  Mimulus torreyi George K. Helmkamp, E. A. Helmkamp 2009-8-12 15425 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  UCR209720  Stephanomeria lactucina George K. Helmkamp, E. A. Helmkamp 2009-8-12 15455 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 21.7 miles northeast of the city of Foresthill 1701 Comment
  UCR209721  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 1564 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
  UCR209724  Penstemon azureus George K. Helmkamp, E. A. Helmkamp 2009-8-12 15444 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR209725  Aster foliaceus var. parryi George K. Helmkamp, E. A. Helmkamp 2009-8-12 15434 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR209726  Pedicularis semibarbata George K. Helmkamp, E. A. Helmkamp 2009-8-12 15454 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 21.7 miles northeast of the city of Foresthill 1701 Comment
  UCR209730  Stipa californica George K. Helmkamp, E. A. Helmkamp 2009-8-12 15451 Placer Sierra Nevada Mountains, Forest Hill Road at Robinson Flat, 27 miles northeast of the city of Foresthill 2061 Comment
  UCR209731  Trisetum projectum George K. Helmkamp, E. A. Helmkamp 2009-8-12 15450 Placer Sierra Nevada Mountains, Forest Hill Road at Robinson Flat, 27 miles northeast of the city of Foresthill 2061 Comment
  UCR209732  Stipa occidentalis var. pubescens George K. Helmkamp, E. A. Helmkamp 2009-8-12 15449 Placer Sierra Nevada Mountains, Forest Hill Road at Robinson Flat, 27 miles northeast of the city of Foresthill 2061 Comment
  UCR209735  Aster foliaceus var. parryi George K. Helmkamp, E. A. Helmkamp 2009-8-12 15429 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  UCR209736  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2009-8-12 15435 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR209738  Gilia leptalea subsp. bicolor George K. Helmkamp, E. A. Helmkamp 2009-8-12 15446 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles northeast of the city of Foresthill 2020 Comment
  UCR209740  Eriogonum ursinum var. ursinum George K. Helmkamp, E. A. Helmkamp 2009-8-12 15445 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles northeast of the city of Foresthill 2020 Comment
  UCR209741  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 1662 Comment
  UCR209743  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2009-8-12 15424 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  UCR209744  Angelica breweri George K. Helmkamp, E. A. Helmkamp 2009-8-12 15437 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR209745  Melica aristata George K. Helmkamp, E. A. Helmkamp 2009-8-12 15423 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  UCR209747  Polygonum phytolaccifolium George K. Helmkamp, E. A. Helmkamp 2009-8-12 15440 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR209748  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, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR209749  Eucephalus breweri George K. Helmkamp, E. A. Helmkamp 2009-8-12 15432 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 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
Read comments
Mar 31 2011
  UCR209751  Agrostis George K. Helmkamp, E. A. Helmkamp 2009-8-12 15430 Placer Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill 1662 Comment
  UCR209753  Apocynum androsaemifolium George K. Helmkamp, E. A. Helmkamp 2009-8-12 15442 Placer Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill 2034 Comment
  UCR215903  Chlorogalum pomeridianum George K. Helmkamp, Amy Barnes 2009-7-12 15172 Placer Sierra Nevada Mountains Foothills, along Foresthill Road at the northeast end of the city of Foresthill 985 Comment
  UCR215974  Bromus orcuttianus George K. Helmkamp, Amy Barnes 2009-7-12 15177 Placer Sierra Nevada Mountains Foothills, along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 Comment
  UCR215977  Piperia transversa George K. Helmkamp, Amy Barnes 2009-7-12 15175 Placer Sierra Nevada Mountains Foothills, along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 Comment
  UCR215978  Sanguisorba officinalis George K. Helmkamp, Amy Barnes 2009-7-12 15174 Placer Sierra Nevada Mountains Foothills, along Foresthill Road, 5.7 miles northeast of the city of Foresthill 1230 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
  UCR215981  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, Amy Barnes 2009-7-12 15183 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 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
  UCR215983  Penstemon laetus subsp. leptosepalus George K. Helmkamp, Amy Barnes 2009-7-12 15181 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  UCR215985  Horkelia tridentata subsp. tridentata George K. Helmkamp, Amy Barnes 2009-7-12 15178 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  UCR215986  Eriophyllum lanatum var. croceum George K. Helmkamp, Amy Barnes 2009-7-12 15185 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  UCR215987  Lilium washingtonianum var. washingtonianum George K. Helmkamp, Amy Barnes 2009-7-12 15179 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 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
  UCR216028  Torilis arvensis George K. Helmkamp, Amy Barnes 2009-7-12 15189 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
  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
  UCR216033  Calyptridium monospermum George K. Helmkamp, Amy Barnes 2009-7-12 15187 Placer Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill 1370 Comment
  UCR218116  Hordeum brachyantherum George K. Helmkamp, E. A. Helmkamp 2010-6-26 16400 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218117  Madia elegans subsp. vernalis George K. Helmkamp, E. A. Helmkamp 2010-6-26 16399 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218118  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2010-6-26 16404 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218119  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp 2010-6-26 16396 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 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
  UCR218121  Chlorogalum grandiflorum George K. Helmkamp, E. A. Helmkamp 2010-6-26 16394 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218123  Epilobium George K. Helmkamp, E. A. Helmkamp 2010-6-26 16392 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218124  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2010-6-26 16393 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218125  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 2010-6-26 16398 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218126  Cryptantha intermedia George K. Helmkamp, E. A. Helmkamp 2010-6-26 16401 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218127  Eschscholzia caespitosa George K. Helmkamp, E. A. Helmkamp 2010-6-26 16402 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218128  Madia minima George K. Helmkamp, E. A. Helmkamp 2010-6-26 16377 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218129  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 2010-6-26 16381 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218130  Madia elegans subsp. vernalis George K. Helmkamp, E. A. Helmkamp 2010-6-26 16382 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218131  Agrostis idahoensis George K. Helmkamp, E. A. Helmkamp 2010-6-26 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
  UCR218132  Dryopteris arguta George K. Helmkamp, E. A. Helmkamp 2010-6-26 16385 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218133  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2010-6-26 16383 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218134  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, E. A. Helmkamp 2010-6-26 16384 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218135  Clarkia rhomboidea George K. Helmkamp, E. A. Helmkamp 2010-6-26 16403 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218216  Philadelphus lewisii George K. Helmkamp, E. A. Helmkamp 2010-6-26 16415 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
  UCR218219  Heteromeles arbutifolia George K. Helmkamp, E. A. Helmkamp 2010-6-26 16418 Placer Sierra Nevada Mountains Foothills, along CA-49 in the section dropping rapidly to the American River forks; about 1/2 mile east of Auburn 355 Comment
  UCR218221  Cynosurus echinatus George K. Helmkamp, E. A. Helmkamp 2010-6-26 16388 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218222  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2010-6-26 16387 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218223  Collomia grandiflora George K. Helmkamp, E. A. Helmkamp 2010-6-26 16386 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR218224  Erigeron foliosus var. hartwegii George K. Helmkamp, E. A. Helmkamp 2010-6-26 16413 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
  UCR218225  Malacothrix floccifera George K. Helmkamp, E. A. Helmkamp 2010-6-26 16412 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
  UCR218226  Penstemon azureus subsp. angustissimus George K. Helmkamp, E. A. Helmkamp 2010-6-26 16411 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
  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
  UCR218228  Clarkia unguiculata George K. Helmkamp, E. A. Helmkamp 2010-6-26 16409 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
  UCR218229  Gilia capitata subsp. mediomontana George K. Helmkamp, E. A. Helmkamp 2010-6-26 16408 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
  UCR218230  Lotus humistratus George K. Helmkamp, E. A. Helmkamp 2010-6-26 16407 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
  UCR218231  Centaurea solstitialis George K. Helmkamp, E. A. Helmkamp 2010-6-26 16406 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 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
  UCR218233  Gnaphalium californicum George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16445 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road on the west side of Iowa Hill Bridge over the North Fork of the American River 345 Comment
  UCR218234  Elymus glaucus subsp. glaucus George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16436 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 415 Comment
  UCR218235  Lupinus nanus George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16444 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax 418 Comment
  UCR218236  Torilis arvensis George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16443 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax 418 Comment
  UCR218237  Lilium humboldtii subsp. humboldtii George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16442 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax 418 Comment
  UCR218238  Clarkia biloba subsp. brandegeeae George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16441 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax 418 Comment
  UCR218239  Piperia elongata George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16440 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax 418 Comment
  UCR218240  Clarkia biloba subsp. brandegeeae George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16438 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 415 Comment
  UCR218242  Collinsia tinctoria George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16430 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
  UCR218243  Delphinium hansenii subsp. hansenii George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16428 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
  UCR218244  Adiantum jordanii George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16429 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
  UCR218246  Grindelia hirsutula var. davyi George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16432 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
  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
  UCR218248  Collinsia tinctoria George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16434 Placer Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax 415 Comment
  UCR218445  Clarkia purpurea subsp. viminea George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16424 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
  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
  UCR218448  Keckiella breviflora subsp. breviflora George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16421 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
  UCR218449  Clarkia unguiculata George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16420 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
  UCR218450  Umbellularia californica George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16419 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
  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
  UCR218453  Erigeron foliosus var. hartwegii George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe 2010-7-2 16426 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
  UCR218467  Anagallis arvensis George K. Helmkamp, E. A. Helmkamp 2010-6-26 16390 Placer Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way 591 Comment
  UCR218468  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 2010-6-26 16389 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 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
  UCR219648  Croton setiger George K. Helmkamp, E. A. Helmkamp 2010-6-26 16370 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR219666  Phacelia imbricata subsp. imbricata George K. Helmkamp, E. A. Helmkamp 2010-6-26 16376 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR219679  Galium parisiense George K. Helmkamp, E. A. Helmkamp 2010-6-26 16375 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR219680  Herniaria hirsuta subsp. cinerea George K. Helmkamp, E. A. Helmkamp 2010-6-26 16373 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR219681  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2010-6-26 16374 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR219682  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2010-6-26 16372 Placer Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax 616 Comment
  UCR222539  Sisymbrium officinale George K. Helmkamp, E. A. Helmkamp 2010-4-23 15912 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR222542  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2010-4-17 15887 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 4.2 miles southwest of its junction with CA-49 near Pilot Hill 360 Comment
Read comments
Apr 25 2011
  UCR222543  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2010-4-17 15888 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 4.2 miles southwest of its junction with CA-49 near Pilot Hill 360 Comment
  UCR222546  Verbascum virgatum George K. Helmkamp, E. A. Helmkamp 2010-4-17 15890 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 7.3 miles southwest of its junction with CA-49 near Pilot Hill 332 Comment
  UCR222549  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2010-4-17 15894 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area 305 Comment
  UCR222550  Amsinckia intermedia George K. Helmkamp, E. A. Helmkamp 2010-4-17 15895 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area 305 Comment
  UCR222552  Collinsia heterophylla George K. Helmkamp, E. A. Helmkamp 2010-4-17 15897 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill 308 Comment
  UCR222553  Triteleia ixioides subsp. scabra George K. Helmkamp, E. A. Helmkamp 2010-4-17 15898 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill 308 Comment
  UCR222571  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2010-4-17 15891 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 7.3 miles southwest of its junction with CA-49 near Pilot Hill 332 Comment
  UCR222893  Ceanothus integerrimus George K. Helmkamp, E. A. Helmkamp 2010-4-17 15900 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill 308 Comment
  UCR222894  Nemophila pulchella var. fremontii George K. Helmkamp, E. A. Helmkamp 2010-4-17 15901 Placer Sierra Nevada Mountains Foothills, along CA-49, 2.5 miles southeast of Pilot Hill 271 Comment
  UCR222895  Linanthus bicolor George K. Helmkamp, E. A. Helmkamp 2010-4-17 15899 Placer Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill 308 Comment
  UCR222896  Phlox gracilis George K. Helmkamp, E. A. Helmkamp 2010-4-17 15902 Placer Sierra Nevada Mountains Foothills, along CA-49, 2.5 miles southeast of Pilot Hill 271 Comment
  UCR224243  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2010-4-23 15907 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224244  Lupinus microcarpus var. microcarpus George K. Helmkamp, E. A. Helmkamp 2010-4-23 15906 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224245  Geranium molle George K. Helmkamp, E. A. Helmkamp 2010-4-23 15905 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224246  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2010-4-23 15904 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224247  Silene gallica George K. Helmkamp, E. A. Helmkamp 2010-4-23 15903 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224860  Medicago polymorpha George K. Helmkamp, E. A. Helmkamp 2010-4-23 15913 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224861  Nemophila pulchella var. fremontii George K. Helmkamp, E. A. Helmkamp 2010-4-23 15911 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR224862  Geranium molle George K. Helmkamp, E. A. Helmkamp 2010-4-23 15910 Placer Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill 287 Comment
  UCR229447  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2011-7-26 17894 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
  UCR229448  Aster occidentalis var. occidentalis George K. Helmkamp, E. A. Helmkamp 2011-7-26 17893 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
  UCR229453  Eriogonum nudum George K. Helmkamp, E. A. Helmkamp 2011-7-26 17899 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
  UCR229454  Elymus cinereus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17898 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
  UCR229455  Spergularia rubra George K. Helmkamp, E. A. Helmkamp 2011-7-26 17897 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
  UCR229457  Potentilla gracilis var. fastigiata George K. Helmkamp, E. A. Helmkamp 2011-7-26 17895 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
  UCR229528  Linanthus ciliatus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17892 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
  UCR229533  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2011-7-26 17860 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
  UCR229534  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2011-7-26 17859 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
  UCR229536  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
  UCR229537  Penstemon azureus var. azureus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17856 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
  UCR229538  Madia gracilis George K. Helmkamp, E. A. Helmkamp 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 1590 Comment
  UCR229539  Lotus nevadensis var. nevadensis George K. Helmkamp, E. A. Helmkamp 2011-7-26 17854 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
  UCR229543  Collomia grandiflora George K. Helmkamp, E. A. Helmkamp 2011-7-26 17865 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
  UCR229544  Lepidium virginicum var. virginicum George K. Helmkamp, E. A. Helmkamp 2011-7-26 17864 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
  UCR229545  Elymus glaucus subsp. glaucus George K. Helmkamp, E. A. Helmkamp 2011-7-26 17863 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
  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
  UCR229554  Allophyllum integrifolium George K. Helmkamp, E. A. Helmkamp 2011-7-26 17903 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
  UCR229555  Sambucus mexicana George K. Helmkamp, E. A. Helmkamp 2011-7-26 17902 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
  UCR229556  Eucephalus breweri George K. Helmkamp, E. A. Helmkamp 2011-7-26 17901 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
  UCR229563  Penstemon roezlii George K. Helmkamp, E. A. Helmkamp 2011-7-26 17861 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
  UCR231007  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2010-8-14 16799 Placer Northern Sierra Nevada Mountains, American Hill Road, 1.2 miles south of its junction with Foresthill Road 1567 Comment
  UCR231008  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2010-8-14 16800 Placer Northern Sierra Nevada Mountains, American Hill Road, 1.2 miles south of its junction with Foresthill Road 1567 Comment
  UCR231009  Penstemon roezlii George K. Helmkamp, E. A. Helmkamp 2010-8-14 16797 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
  UCR231018  Chrysolepis sempervirens George K. Helmkamp, E. A. Helmkamp 2010-8-14 16798 Placer Northern Sierra Nevada Mountains, American Hill Road, 1.2 miles south of its junction with Foresthill Road 1567 Comment
  UCR231817  Platanthera dilatata var. leucostachys George K. Helmkamp, E. A. Helmkamp 2010-8-14 16793 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
  UCR231818  Anaphalis margaritacea George K. Helmkamp, E. A. Helmkamp 2010-8-14 16792 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
  UCR231819  Penstemon newberryi var. newberryi George K. Helmkamp, E. A. Helmkamp 2010-8-14 16791 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
  UCR231820  Galium bolanderi George K. Helmkamp, E. A. Helmkamp 2010-8-11 16766 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 3.7 miles north of Forest Hill Road 1140 Comment
  UCR231821  Chrysolepis sempervirens George K. Helmkamp, E. A. Helmkamp 2010-8-14 16768 A Placer Northern Sierra Nevada Mountains, Deadwood Road, 1.2 miles south of its junction wih Forest Hill Road 1564 Comment
  UCR231823  Geranium molle George K. Helmkamp, E. A. Helmkamp 2011-4-10 17135 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231824  Erigeron breweri George K. Helmkamp, E. A. Helmkamp 2010-8-14 16774 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
  UCR231825  Penstemon newberryi var. newberryi George K. Helmkamp, E. A. Helmkamp 2010-8-14 16773 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
  UCR231827  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2010-8-14 16771 Placer Northern Sierra Nevada Mountains, Deadwood Road, 1.2 miles south of its junction wih Forest Hill Road 1564 Comment
  UCR231828  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, E. A. Helmkamp 2010-8-14 16770 Placer Northern Sierra Nevada Mountains, Deadwood Road, 1.2 miles south of its junction wih Forest Hill Road 1564 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
  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
  UCR231831  Suksdorfia ranunculifolia George K. Helmkamp, E. A. Helmkamp 2010-8-14 16779 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
  UCR231833  Draperia systyla George K. Helmkamp, E. A. Helmkamp 2010-8-14 16777 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
  UCR231834  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2010-8-14 16776 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
  UCR231835  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16786 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
  UCR231837  Hieracium albiflorum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16784 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
  UCR231838  Campanula prenanthoides George K. Helmkamp, E. A. Helmkamp 2010-8-14 16783 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
  UCR231839  Galium triflorum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16782 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
  UCR231840  Rubus parviflorus George K. Helmkamp, E. A. Helmkamp 2010-8-14 16787 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
  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
  UCR231842  Epilobium angustifolium subsp. circumvagum George K. Helmkamp, E. A. Helmkamp 2010-8-14 16790 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
  UCR231845  Lotus oblongifolius George K. Helmkamp, E. A. Helmkamp 2010-8-14 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
  UCR231846  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2010-8-11 16757 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek 1082 Comment
  UCR231848  Polygonum aviculare George K. Helmkamp, E. A. Helmkamp 2010-8-11 16755 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek 1085 Comment
  UCR231850  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2010-8-11 16753 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek 1085 Comment
  UCR231851  Rubus laciniatus George K. Helmkamp, E. A. Helmkamp 2010-8-11 16752 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek 1085 Comment
  UCR231852  Eucephalus breweri George K. Helmkamp, E. A. Helmkamp 2010-8-14 16768 Placer Northern Sierra Nevada Mountains, Deadwood Road, 1.2 miles south of its junction wih Forest Hill Road 1564 Comment
  UCR231853  Eriophyllum lanatum var. croceum George K. Helmkamp, E. A. Helmkamp 2010-8-11 16767 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 3.7 miles north of Forest Hill Road 1140 Comment
  UCR231855  Adenocaulon bicolor George K. Helmkamp, E. A. Helmkamp 2010-8-11 16764 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek 1082 Comment
  UCR231856  Prunella vulgaris var. lanceolata George K. Helmkamp, E. A. Helmkamp 2010-8-11 16763 Placer Northern Sierra Nevada Mountains, Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek 1082 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
  UCR231861  Mimulus cardinalis George K. Helmkamp, E. A. Helmkamp 2010-8-14 16775 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
  UCR231862  Aster oregonensis George K. Helmkamp, E. A. Helmkamp 2010-10-16 17024 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
  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
  UCR231864  Baccharis pilularis George K. Helmkamp, E. A. Helmkamp 2010-10-16 17031 Placer Northern Sierra Nevada Mountains Foothills, Sugar Pine Road at the southwest corner of Sugar Pine Reservoir near the dam 1128 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
  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
  UCR231867  Cichorium intybus George K. Helmkamp, E. A. Helmkamp 2010-10-16 17018 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
  UCR231868  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2010-10-16 17017 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
  UCR231869  Solidago canadensis subsp. elongata George K. Helmkamp, E. A. Helmkamp 2010-10-16 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 Reservoir dam 1180 Comment
  UCR231871  Alnus rhombifolia George K. Helmkamp, E. A. Helmkamp 2010-10-16 17025 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
  UCR231872  Amsinckia menziesii var. menziesii George K. Helmkamp, E. A. Helmkamp 2011-4-10 17137 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231873  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2011-4-10 17136 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231874  Lonicera hispidula var. vacillans George K. Helmkamp, E. A. Helmkamp 2010-10-16 17021 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
  UCR231875  Polygonum aviculare George K. Helmkamp, E. A. Helmkamp 2010-10-16 17020 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
  UCR231876  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2010-10-16 17019 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
  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
  UCR231879  Brassica geniculata George K. Helmkamp, E. A. Helmkamp 2010-10-16 17022 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
  UCR231880  Pseudognaphalium canescens subsp. beneolens George K. Helmkamp, E. A. Helmkamp 2010-10-16 17028 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
  UCR231881  Limnanthes floccosa subsp. californica George K. Helmkamp, E. A. Helmkamp 2011-4-10 17151 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR231883  Lotus purshianus var. purshianus George K. Helmkamp, E. A. Helmkamp 2010-10-16 17016 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
  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
  UCR231885  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp 2011-4-10 17150 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231887  Ranunculus californicus George K. Helmkamp, E. A. Helmkamp 2011-4-10 17148 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231888  Vicia villosa subsp. villosa George K. Helmkamp, E. A. Helmkamp 2011-4-10 17147 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231889  Aira caryophyllea George K. Helmkamp, E. A. Helmkamp 2011-4-10 17146 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 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
  UCR231892  Triphysaria eriantha subsp. eriantha George K. Helmkamp, E. A. Helmkamp 2011-4-10 17143 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231893  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-4-10 17142 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231894  Dichelostemma capitatum subsp. capitatum George K. Helmkamp, E. A. Helmkamp 2011-4-10 17141 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231896  Triteleia laxa George K. Helmkamp, E. A. Helmkamp 2011-4-10 17139 Placer Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road 98 Comment
  UCR231897  Triteleia hyacinthina George K. Helmkamp, E. A. Helmkamp 2011-4-10 17153 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR231898  Layia chrysanthemoides George K. Helmkamp, E. A. Helmkamp 2011-4-10 17155 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR231899  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 2011-4-10 17152 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR232216  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
  UCR232219  Triteleia laxa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17220 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
  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
  UCR232232  Gayophytum heterozygum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16646 Placer Northern Sierra Nevada Mountains, Forest Hill Road at Hidden Treasure Road, 10.4 miles northeast of the city of Foresthill 1384 Comment
  UCR232250  Parentucellia viscosa George K. Helmkamp, E. A. Helmkamp 2011-5-6 17221 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
  UCR232621  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2010-7-28 16638 Placer Northern Sierra Nevada Mountains, Forest Route 10 (Sugar Pine Rd.), 0.8 mile north of its junction with Forest Hill Road, 8.2 miles NE (34 deg. ) of Foresthill 1311 Comment
  UCR232622  Cynoglossum occidentale George K. Helmkamp, E. A. Helmkamp 2010-7-28 16636 Placer Northern Sierra Nevada Mountains, Forest Route 10 (Sugar Pine Rd.), 0.8 mile north of its junction with Forest Hill Road, 8.2 miles NE (34 deg. ) of Foresthill 1311 Comment
  UCR232625  Calystegia occidentalis subsp. occidentalis George K. Helmkamp, E. A. Helmkamp 2010-7-28 16643 Placer Northern Sierra Nevada Mountains, Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road 1567 Comment
  UCR232626  Vicia americana subsp. americana George K. Helmkamp, E. A. Helmkamp 2010-7-28 16637 Placer Northern Sierra Nevada Mountains, Forest Route 10 (Sugar Pine Rd.), 0.8 mile north of its junction with Forest Hill Road, 8.2 miles NE (34 deg. ) of Foresthill 1311 Comment
  UCR232631  Prunus emarginata George K. Helmkamp, E. A. Helmkamp 2010-7-28 16644 Placer Northern Sierra Nevada Mountains, Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road 1567 Comment
  UCR232632  Nama lobbii George K. Helmkamp, E. A. Helmkamp 2010-7-28 16641 Placer Northern Sierra Nevada Mountains, Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road 1567 Comment
  UCR232633  Sanguisorba officinalis George K. Helmkamp, E. A. Helmkamp 2010-7-28 16640 Placer Northern Sierra Nevada Mountains, Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road 1567 Comment
  UCR232634  Pseudognaphalium canescens subsp. thermale George K. Helmkamp, E. A. Helmkamp 2010-7-28 16639 Placer Northern Sierra Nevada Mountains, Forest Route 10 (Sugar Pine Rd.), 0.8 mile north of its junction with Forest Hill Road, 8.2 miles NE (34 deg. ) of Foresthill 1311 Comment
  UCR232644  Pseudotsuga menziesii var. menziesii George K. Helmkamp, E. A. Helmkamp 2011-9-30 18346 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
  UCR232647  Artemisia douglasiana George K. Helmkamp, E. A. Helmkamp 2011-9-30 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
  UCR232648  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2011-9-30 18341 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
  UCR232649  Gilia capitata subsp. pedemontana George K. Helmkamp, E. A. Helmkamp 2011-9-30 18342 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
  UCR233011  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2011-5-12 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
  UCR233012  Plagiobothrys stipitatus var. stipitatus George K. Helmkamp, E. A. Helmkamp 2011-5-12 17257 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
  UCR233013  Plagiobothrys George K. Helmkamp, E. A. Helmkamp 2011-5-12 17254 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
  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
  UCR233184B  Sanguisorba minor subsp. muricata George K. Helmkamp, E. A. Helmkamp 2011-7-9 17673 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR233185B  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2011-7-9 17672 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR233229  Clarkia biloba subsp. brandegeeae George K. Helmkamp, E. A. Helmkamp 2011-7-9 17689 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road 503 Comment
  UCR233237  Sidalcea malviflora subsp. asprella George K. Helmkamp, E. A. Helmkamp 2011-7-9 17695 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 1.2 miles northeast of the city of Foresthill 1043 Comment
  UCR233238  Chlorogalum pomeridianum var. pomeridianum George K. Helmkamp, E. A. Helmkamp 2011-7-9 17694 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 1.2 miles northeast of the city of Foresthill 1043 Comment
  UCR233239  Rhamnus tomentella subsp. tomentella George K. Helmkamp, E. A. Helmkamp 2011-7-9 17693 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 1.2 miles northeast of the city of Foresthill 1043 Comment
  UCR233240  Madia gracilis George K. Helmkamp, E. A. Helmkamp 2011-7-9 17692 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 1.2 miles northeast of the city of Foresthill 1043 Comment
  UCR233241  Dichelostemma multiflorum George K. Helmkamp, E. A. Helmkamp 2011-7-9 17691 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 1.2 miles northeast of the city of Foresthill 1043 Comment
  UCR233242  Castilleja applegatei subsp. pinetorum George K. Helmkamp, E. A. Helmkamp 2011-7-9 17690 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road 503 Comment
  UCR233243  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2011-7-9 17688 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road 503 Comment
  UCR233269  Hieracium albiflorum George K. Helmkamp, E. A. Helmkamp 2011-7-9 17680 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 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
  UCR233271  Eriophyllum lanatum var. achilleoides George K. Helmkamp, E. A. Helmkamp 2011-7-9 17678 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR233273  Daucus carota George K. Helmkamp, E. A. Helmkamp 2011-7-9 17676 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR233274  Potentilla glandulosa subsp. reflexa George K. Helmkamp, E. A. Helmkamp 2011-7-9 17675 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR233275  Collinsia tinctoria George K. Helmkamp, E. A. Helmkamp 2011-7-9 17687 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road 503 Comment
  UCR233277  Castilleja applegatei subsp. pinetorum George K. Helmkamp, E. A. Helmkamp 2011-7-9 17685 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 1.6 miles southeast of its junction with Foresthill Road at Foresthill 883 Comment
  UCR233278  Achillea millefolium George K. Helmkamp, E. A. Helmkamp 2011-7-9 17684 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 1.6 miles southeast of its junction with Foresthill Road at Foresthill 883 Comment
  UCR233279  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2011-7-9 17682 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR233280  Penstemon azureus subsp. angustissimus George K. Helmkamp, E. A. Helmkamp 2011-7-9 17683 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 1.6 miles southeast of its junction with Foresthill Road at Foresthill 883 Comment
  UCR233335  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2011-4-1 17115 Placer Eastern Sacramento Valley, along CA-193 (Lincoln-New Castle Hwy), 0.4 mile west of Gold Hill Road, 5.4 miles (air) east of Lincoln 108 Comment
  UCR233369  Penstemon laetus subsp. laetus George K. Helmkamp, E. A. Helmkamp 2011-8-26 18160 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 3.6 miles east of its junction with Mesquite Road in the city of Foresthill 1402 Comment
  UCR233370  Centaurea maculosa George K. Helmkamp, E. A. Helmkamp 2011-8-26 18159 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 3.6 miles east of its junction with Mesquite Road in the city of Foresthill 1402 Comment
  UCR233381  Potentilla glandulosa subsp. reflexa George K. Helmkamp, E. A. Helmkamp 2011-8-26 18165 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2020 Comment
  UCR233382  Phacelia hastata var. hastata George K. Helmkamp, E. A. Helmkamp 2011-8-26 18166 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2020 Comment
  UCR233385  Eriogonum nudum var. deductum George K. Helmkamp, E. A. Helmkamp 2011-8-26 18163 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2020 Comment
  UCR233386  Phlox gracilis George K. Helmkamp, E. A. Helmkamp 2011-8-26 18173 Placer Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2061 Comment
  UCR233389  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2011-8-26 18171 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 0.4 miles west of Robinson Flat 2041 Comment
  UCR233391  Collomia tinctoria George K. Helmkamp, E. A. Helmkamp 2011-8-26 18169 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 0.4 miles west of Robinson Flat 2041 Comment
  UCR233392  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2011-8-26 18168 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2020 Comment
  UCR233393  Rorippa curvipes var. truncata George K. Helmkamp, E. A. Helmkamp 2011-8-26 18167 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill 2020 Comment
  UCR233394  Juncus ensifolius George K. Helmkamp, E. A. Helmkamp 2011-8-26 18179 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
  UCR233395  Castilleja miniata subsp. miniata George K. Helmkamp, E. A. Helmkamp 2011-8-26 18178 Placer Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2061 Comment
  UCR233396  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2011-8-26 18177 Placer Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2061 Comment
  UCR233397  Stephanomeria lactucina George K. Helmkamp, E. A. Helmkamp 2011-8-26 18176 Placer Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2061 Comment
  UCR233398  Phacelia mutabilis George K. Helmkamp, E. A. Helmkamp 2011-8-26 18175 Placer Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2061 Comment
  UCR233399  Phacelia racemosa George K. Helmkamp, E. A. Helmkamp 2011-8-26 18174 Placer Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road 2061 Comment
  UCR233400  Mimulus breweri George K. Helmkamp, E. A. Helmkamp 2011-8-26 18186 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
  UCR233402  Allophyllum integrifolium George K. Helmkamp, E. A. Helmkamp 2011-8-26 18184 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
  UCR233403  Epilobium ciliatum subsp. glandulosum George K. Helmkamp, E. A. Helmkamp 2011-8-26 18183 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
  UCR233455  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
  UCR233457  Mimulus moschatus George K. Helmkamp, E. A. Helmkamp 2011-8-26 18187 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
  UCR233458  Sidalcea glaucescens George K. Helmkamp, E. A. Helmkamp 2011-8-26 18182 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
  UCR233459  Angelica George K. Helmkamp, E. A. Helmkamp 2011-8-26 18181 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
  UCR233460  Ipomopsis aggregata subsp. formosissima George K. Helmkamp, E. A. Helmkamp 2011-8-26 18180 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
  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
  UCR233662  Juncus effusus var. exiguus George K. Helmkamp, E. A. Helmkamp 2011-7-9 17674 Placer Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill 764 Comment
  UCR234016  Lasthenia glaberrima George K. Helmkamp, E. A. Helmkamp 2011-5-12 17252 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
  UCR234161  Rumex crispus George K. Helmkamp, E. A. Helmkamp 2011-4-10 17160 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR234163  Triphysaria eriantha subsp. eriantha George K. Helmkamp, E. A. Helmkamp 2011-4-10 17162 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR234212  Mimulus guttatus George K. Helmkamp, E. A. Helmkamp 2011-4-10 17170 Placer Sacramento Valley, along Riosa Road, 2.3 miles east of Sheridan 43 Comment
  UCR234213  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2011-4-10 17171 Placer Sacramento Valley, along Riosa Road, 2.3 miles east of Sheridan 43 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
  UCR234216  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, E. A. Helmkamp 2011-4-10 17174 Placer Sacramento Valley, 2 miles east of Hwy 65 in Lincoln, along CA-193 just west of the junction with Stardust Lane 76 Comment
  UCR234218  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2011-4-10 17156 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR234219  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, E. A. Helmkamp 2011-4-10 17158 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR234220  Ranunculus muricatus George K. Helmkamp, E. A. Helmkamp 2011-4-10 17159 Placer Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan 41 Comment
  UCR235278  Vicia villosa subsp. villosa George K. Helmkamp, E. A. Helmkamp 2011-11-28 18481 Placer Sacramento Valley, North Brewer Road, 0.2 mile north of Nicolaus Road, 8.7 mi. west of Lincoln 29 Comment
  UCR235279  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
  UCR235377  Stipa lettermanii George K. Helmkamp, E. A. Helmkamp 2012-5-11 18959 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
  UCR235378  Trientalis latifolia George K. Helmkamp, E. A. Helmkamp 2012-5-11 18960 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
  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
  UCR235382  Senecio aronicoides George K. Helmkamp, E. A. Helmkamp 2012-5-11 18944 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235383  Festuca occidentalis George K. Helmkamp, E. A. Helmkamp 2012-5-11 18945 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235384  Ceanothus oliganthus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18946 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235385  Osmorhiza George K. Helmkamp, E. A. Helmkamp 2012-5-11 18947 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235386  Agoseris retrorsa George K. Helmkamp, E. A. Helmkamp 2012-5-11 18948 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235387  Luzula comosa George K. Helmkamp, E. A. Helmkamp 2012-5-11 18949 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235388  Viola sheltonii George K. Helmkamp, E. A. Helmkamp 2012-5-11 18950 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235389  Viola purpurea subsp. purpurea George K. Helmkamp, E. A. Helmkamp 2012-5-11 18951 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road 1041 Comment
  UCR235390  Fritillaria atropurpurea George K. Helmkamp, E. A. Helmkamp 2012-5-11 18952 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road 1041 Comment
  UCR235391  Acer macrophyllum George K. Helmkamp, E. A. Helmkamp 2012-5-11 18953 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road 1041 Comment
  UCR235392  Lathyrus nevadensis subsp. nevadensis George K. Helmkamp, E. A. Helmkamp 2012-5-11 18954 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road 1041 Comment
  UCR235395  Lupinus nanus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18940 Placer Foothills, northern Sierra Nevada Mountains, Finning Mill Road at the junction with Forest Hill Road 1136 Comment
  UCR235409  Verbena litoralis George K. Helmkamp, E. A. Helmkamp 2011-11-28 18482 Placer Sacramento Valley, North Brewer Road, 0.2 mile north of Nicolaus Road, 8.7 mi. west of Lincoln 29 Comment
  UCR235410  Rumex crispus George K. Helmkamp, E. A. Helmkamp 2011-11-28 18483 Placer Sacramento Valley, North Brewer Road, 0.2 mile north of Nicolaus Road, 8.7 mi. west of Lincoln 29 Comment
  UCR235411  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2011-11-28 18484 Placer Sacramento Valley, North Brewer Road, 0.2 mile north of Nicolaus Road, 8.7 mi. west of Lincoln 29 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
  UCR235423  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2012-5-11 18956 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road 1041 Comment
  UCR235424  Viola sheltonii George K. Helmkamp, E. A. Helmkamp 2012-5-11 18957 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
  UCR235480  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 2012-5-5 18935 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235481  Sanicula crassicaulis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18936 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235482  Luzula comosa George K. Helmkamp, E. A. Helmkamp 2012-5-5 18937 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235483  Festuca George K. Helmkamp, E. A. Helmkamp 2012-5-5 18938 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235485  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18934 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235486  Kumlienia hystricula George K. Helmkamp, E. A. Helmkamp 2012-5-5 18931 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235487  Poa secunda George K. Helmkamp, E. A. Helmkamp 2012-5-5 18932 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 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
  UCR235502  Euphorbia crenulata George K. Helmkamp, E. A. Helmkamp 2012-5-11 18943 Placer Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road 1104 Comment
  UCR235503  Iris hartwegii subsp. pinetorum George K. Helmkamp, E. A. Helmkamp 2012-5-11 18942 Placer Foothills, northern Sierra Nevada Mountains, Finning Mill Road at the junction with Forest Hill Road 1136 Comment
  UCR235504  Calochortus minimus George K. Helmkamp, E. A. Helmkamp 2012-5-11 18941 Placer Foothills, northern Sierra Nevada Mountains, Finning Mill Road at the junction with Forest Hill Road 1136 Comment
  UCR235588  Lathyrus nevadensis subsp. nevadensis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18930 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235589  Carex multicaulis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18929 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235590  Festuca myuros var. hirsuta George K. Helmkamp, E. A. Helmkamp 2012-5-5 18928 Placer Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road 779 Comment
  UCR235592  Trisetum canescens George K. Helmkamp, E. A. Helmkamp 2012-5-5 18925 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
  UCR235593  Polypodium hesperium George K. Helmkamp, E. A. Helmkamp 2012-5-5 18924 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
  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
  UCR235596  Lupinus microcarpus var. densiflorus George K. Helmkamp, E. A. Helmkamp 2012-5-5 18921 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
  UCR235597  Nemophila heterophylla George K. Helmkamp, E. A. Helmkamp 2012-5-5 18920 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
  UCR235610  Adiantum jordanii George K. Helmkamp, E. A. Helmkamp 2012-5-5 18917 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
  UCR235611  Vicia hirsuta George K. Helmkamp, E. A. Helmkamp 2012-5-5 18916 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
  UCR235612  Melica torreyana George K. Helmkamp, E. A. Helmkamp 2012-5-5 18915 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
  UCR235615  Calochortus albus George K. Helmkamp, E. A. Helmkamp 2012-5-5 18912 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
  UCR235616  Fritillaria affinis George K. Helmkamp, E. A. Helmkamp 2012-5-5 18911 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
  UCR235619  Claytonia parviflora subsp. grandiflora George K. Helmkamp, E. A. Helmkamp 2012-5-5 18919 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
  UCR237433  Cardamine pensylvanica George K. Helmkamp, E. A. Helmkamp 2012-2-23 18576 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
  UCR237434  Vicia sativa subsp. nigra George K. Helmkamp, E. A. Helmkamp 2012-2-23 18577 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
  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
  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
  UCR237458  Claytonia perfoliata subsp. mexicana George K. Helmkamp, E. A. Helmkamp 2012-2-23 18578 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
  UCR237462  Prunus persica George K. Helmkamp, E. A. Helmkamp 2012-2-23 18575 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
  UCR238573  Geranium molle George K. Helmkamp, E. A. Helmkamp 2012-3-31 18648 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238574  Festuca bromoides George K. Helmkamp, E. A. Helmkamp 2012-3-31 18647 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238575  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. 88 Comment
  UCR238577  Claytonia perfoliata subsp. perfoliata George K. Helmkamp, E. A. Helmkamp 2012-3-31 18658 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238578  Plantago lanceolata George K. Helmkamp, E. A. Helmkamp 2012-3-31 18657 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238579  Ceanothus cuneatus subsp. cuneatus George K. Helmkamp, E. A. Helmkamp 2012-3-31 18656 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238581  Vicia sativa subsp. nigra George K. Helmkamp, E. A. Helmkamp 2012-3-31 18653 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238582  Matricaria matricarioides George K. Helmkamp, E. A. Helmkamp 2012-3-31 18652 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 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
  UCR238584  Vicia villosa subsp. villosa George K. Helmkamp, E. A. Helmkamp 2012-3-31 18667 Placer Northern Sierra Nevada Mountains Foothills, Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing 258 Comment
  UCR238586  Bromus hordeaceus George K. Helmkamp, E. A. Helmkamp 2012-3-31 18665 Placer Northern Sierra Nevada Mountains Foothills, Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing 258 Comment
  UCR238587  Scandix pecten-veneris George K. Helmkamp, E. A. Helmkamp 2012-3-31 18664 Placer Northern Sierra Nevada Mountains Foothills, Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing 258 Comment
  UCR238588  Eschscholzia caespitosa George K. Helmkamp, E. A. Helmkamp 2012-3-31 18663 Placer Sacramento Valley, along CA-193, 0.3 mile northwest of its junction with Gold Hill Road 131 Comment
  UCR238589  Lupinus benthamii George K. Helmkamp, E. A. Helmkamp 2012-3-31 18662 Placer Sacramento Valley, along CA-193, 0.3 mile northwest of its junction with Gold Hill Road 131 Comment
  UCR238590  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2012-3-31 18661 Placer Sacramento Valley, along CA-193, 0.3 mile northwest of its junction with Gold Hill Road 131 Comment
  UCR238591  Amsinckia retrorsa George K. Helmkamp, E. A. Helmkamp 2012-3-31 18660 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238601  Hypochaeris radicata George K. Helmkamp, E. A. Helmkamp 2012-3-31 18651 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR238610  Eschscholzia californica George K. Helmkamp, E. A. Helmkamp 2012-3-31 18645 Placer Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd. 88 Comment
  UCR240706  Elymus elymoides subsp. californicus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19227 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240720  Agrostis exarata George K. Helmkamp, E. A. Helmkamp 2012-9-25 19895 Placer Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap 1634 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
  UCR240724  Viola tomentosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19224 Placer Northern Sierra Nevada Mountains, Devil's Thumb Road [Deadwood Rd.], 1.2 miles south of its junction with Foresthill Road 1648 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
  UCR240750  Galium bolanderi George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19808 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
  UCR240894  Heteromeles arbutifolia George K. Helmkamp, E. A. Helmkamp 2012-6-19 19207 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road 820 Comment
  UCR240895  Penstemon azureus subsp. angustissimus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19208 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road 820 Comment
  UCR240896  Grindelia hirsutula var. davyi George K. Helmkamp, E. A. Helmkamp 2012-6-19 19209 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road 820 Comment
  UCR240897  Centaurea solstitialis George K. Helmkamp, E. A. Helmkamp 2012-6-19 19210 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road 820 Comment
  UCR240898  Monardella sheltonii George K. Helmkamp, E. A. Helmkamp 2012-6-19 19211 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road 820 Comment
  UCR240899  Castilleja applegatei subsp. pinetorum George K. Helmkamp, E. A. Helmkamp 2012-6-19 19212 Placer Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road 820 Comment
  UCR240900  Elymus glaucus subsp. glaucus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19213 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 Comment
  UCR240902  Bromus orcuttianus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19215 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 Comment
  UCR240903  Polygala cornuta var. cornuta George K. Helmkamp, E. A. Helmkamp 2012-6-19 19216 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 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
  UCR240906  Achnatherum occidentale subsp. pubescens George K. Helmkamp, E. A. Helmkamp 2012-6-19 19229 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240907  Elymus glaucus var. glaucus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19229 A Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240908  Silene invisa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19230 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240910  Elymus elymoides subsp. californicus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19232 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240911  Cryptantha affinis George K. Helmkamp, E. A. Helmkamp 2012-6-19 19232 A Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240912  Phacelia racemosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19233 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240913  Gayophytum diffusum subsp. parviflorum George K. Helmkamp, E. A. Helmkamp 2012-6-19 19234 Placer Northern Sierra Nevada Mountains, Foresthill Road, 1.7 miles east of its junction with Devil's Thumb Road 1671 Comment
  UCR240914  Potentilla glandulosa subsp. glandulosa George K. Helmkamp, E. A. Helmkamp 2012-6-19 19238 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 Comment
  UCR240915  Carex mariposana George K. Helmkamp, E. A. Helmkamp 2012-6-19 19240 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 Comment
  UCR240916  Phacelia hastata var. compacta George K. Helmkamp, E. A. Helmkamp 2012-6-19 19241 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 Comment
  UCR240917  Mimulus moschatus George K. Helmkamp, E. A. Helmkamp 2012-6-19 19244 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 Comment
  UCR240918  Rorippa palustris subsp. palustris George K. Helmkamp, E. A. Helmkamp 2012-6-19 19245 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 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
  UCR240920  Viola pinetorum George K. Helmkamp, E. A. Helmkamp 2012-6-19 19247 Placer Northern Sierra Nevada Mountains, Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road 2040 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
  UCR240922  Erysimum perenne George K. Helmkamp, E. A. Helmkamp 2012-6-19 19249 Placer Northern Sierra Nevada Mountains, Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road 2040 Comment
  UCR240944  Gayophytum George K. Helmkamp, E. A. Helmkamp 2012-9-25 19896 Placer Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap 1634 Comment
  UCR240946  Plantago lanceolata George K. Helmkamp, E. A. Helmkamp 2012-9-25 19898 Placer Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap 1634 Comment
  UCR240947  Eriogonum nudum var. nudum George K. Helmkamp, E. A. Helmkamp 2012-9-25 19899 Placer Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap 1634 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
  UCR240950  Ribes nevadense George K. Helmkamp, E. A. Helmkamp 2012-9-25 19902 Placer Northern Sierra Nevada Mountains, Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon-Nyack Airport 1473 Comment
  UCR240951  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2012-9-25 19903 Placer Northern Sierra Nevada Mountains, Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon-Nyack Airport 1473 Comment
  UCR240952  Agrostis stolonifera George K. Helmkamp, E. A. Helmkamp 2012-9-25 19904 Placer Northern Sierra Nevada Mountains, Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon-Nyack Airport 1473 Comment
  UCR240954  Pseudognaphalium canescens subsp. beneolens George K. Helmkamp, E. A. Helmkamp 2012-9-25 19906 Placer Northern Sierra Nevada Mountains, Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon-Nyack Airport 1473 Comment
  UCR240955  Trifolium pratense George K. Helmkamp, E. A. Helmkamp 2012-9-25 19907 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
  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
  UCR240958  Juncus ensifolius George K. Helmkamp, E. A. Helmkamp 2012-9-25 19909 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
  UCR240959  Leucanthemum vulgare George K. Helmkamp, E. A. Helmkamp 2012-9-25 19910 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
  UCR240960  Lathyrus latifolius George K. Helmkamp, E. A. Helmkamp 2012-9-25 19911 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
  UCR240962  Sambucus mexicana George K. Helmkamp, E. A. Helmkamp 2012-9-25 19913 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
  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
  UCR240964  Eriogonum nudum var. oblongifolium George K. Helmkamp, E. A. Helmkamp 2012-9-25 19916 Placer Northern Sierra Nevada Mountains, junction of Nyack Road and I-80 in the Emigrant Gap area 1652 Comment
  UCR240966  Carex nebrascensis George K. Helmkamp, E. A. Helmkamp 2012-9-25 19918 Placer Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road 1611 Comment
  UCR240967  Madia glomerata George K. Helmkamp, E. A. Helmkamp 2012-9-25 19919 Placer Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road 1611 Comment
  UCR240968  Rumex acetosella George K. Helmkamp, E. A. Helmkamp 2012-9-25 19920 Placer Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road 1611 Comment
  UCR241260  Medicago lupulina George K. Helmkamp, E. A. Helmkamp 2012-6-19 19217 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 Comment
  UCR241273  Aegilops triuncialis George K. Helmkamp, E. A. Helmkamp 2012-6-19 19218 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 Comment
  UCR241326  Monardella odoratissima subsp. pallida George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19822 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 0.7 mile north of Robinson Flat Campground, about 26 miles northeast of Foresthill, Tahoe National Forest 2034 Comment
  UCR241330  Delphinium nuttallianum George K. Helmkamp, E. A. Helmkamp 2012-6-19 19237 Placer Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road 2055 Comment
  UCR241331  Triteleia ixioides subsp. scabra George K. Helmkamp, E. A. Helmkamp 2012-6-19 19236 Placer Northern Sierra Nevada Mountains, Foresthill Road, 6.9 miles east of its junction with Devil's Thumb Road 1973 Comment
  UCR241343  Eucephalus breweri George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19826 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
  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
  UCR241350  Agrostis George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19813 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
  UCR241351  Agrostis scabra George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19812 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
  UCR241353  Pseudognaphalium canescens subsp. thermale George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19810 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
  UCR241354  Sidalcea malviflora subsp. asprella George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19821 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 0.7 mile north of Robinson Flat Campground, about 26 miles northeast of Foresthill, Tahoe National Forest 2034 Comment
  UCR241355  Ipomopsis aggregata subsp. formosissima George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19820 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 0.7 mile north of Robinson Flat Campground, about 26 miles northeast of Foresthill, Tahoe National Forest 2034 Comment
  UCR241357  Pseudognaphalium canescens subsp. beneolens George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19818 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 10.8 miles northeast of Hidden Treasure Road, 0.75 mi. SE of Whisky Hill 1698 Comment
  UCR241358  Arctostaphylos manzanita George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19817 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 10.8 miles northeast of Hidden Treasure Road, 0.75 mi. SE of Whisky Hill 1698 Comment
  UCR241359  Agrostis idahoensis George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19816 Placer Northern Sierra Nevada Mountains, along Forest Hill Road, 10.8 miles northeast of Hidden Treasure Road, 0.75 mi. SE of Whisky Hill 1698 Comment
  UCR241720  Phleum pratense George K. Helmkamp, E. A. Helmkamp 2012-9-25 19924 Placer Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road 1611 Comment
  UCR241722  Bromus inermis George K. Helmkamp, E. A. Helmkamp 2012-9-25 19922 Placer Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road 1611 Comment
  UCR241740  Chondrilla juncea George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19814 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
  UCR241743  Achnatherum occidentale subsp. californicum George K. Helmkamp, E. A. Helmkamp 2012-6-19 19220 Placer Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill 1052 Comment
  UCR241744  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
  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
  UCR241761  Eriogonum nudum var. nudum George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19807 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
  UCR241762  Cordylanthus tenuis subsp. tenuis George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19799 Placer Northern Sierra Nevada Mountains, along Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  UCR241763  Dysphania botrys George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19798 Placer Northern Sierra Nevada Mountains, along Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  UCR241764  Solidago altissima subsp. altissima George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19803 Placer Northern Sierra Nevada Mountains, along Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  UCR241765  Sanguisorba minor subsp. muricata George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19802 Placer Northern Sierra Nevada Mountains, along Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  UCR241766  Eriogonum nudum var. nudum George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp 2012-9-8 19804 Placer Northern Sierra Nevada Mountains, along Forest Hill Road at junction with Hidden Treasure Road, c. 0.4 mile NE of Sugar Pine Road 1384 Comment
  UCR242330  Ceanothus cordulatus George K. Helmkamp, E. A. Helmkamp 2010-7-28 16660 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  UCR242331  Phacelia hydrophylloides George K. Helmkamp, E. A. Helmkamp 2010-7-28 16662 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  UCR242332  Calyptridium monospermum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16657 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  UCR242335  Sidalcea malviflora subsp. asprella George K. Helmkamp, E. A. Helmkamp 2010-7-28 16652 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 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
  UCR242363  Salix scouleriana George K. Helmkamp, E. A. Helmkamp 2010-7-28 16671 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat 2040 Comment
  UCR242364  Penstemon azureus var. azureus George K. Helmkamp, E. A. Helmkamp 2010-7-28 16670 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat 2040 Comment
  UCR242366  Eriogonum ursinum var. ursinum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16668 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat 2040 Comment
  UCR242367  Gilia leptalea subsp. leptalea George K. Helmkamp, E. A. Helmkamp 2010-7-28 16667 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat 2040 Comment
  UCR242368  Pedicularis semibarbata George K. Helmkamp, E. A. Helmkamp 2010-7-28 16677 Placer Northern Sierra Nevada Mountains, Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill 2040 Comment
  UCR242369  Lupinus arbustus George K. Helmkamp, E. A. Helmkamp 2010-7-28 16678 Placer Northern Sierra Nevada Mountains, Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill 2040 Comment
  UCR242370  Viola pinetorum subsp. pinetorum George K. Helmkamp, E. A. Helmkamp 2010-7-28 16676 Placer Northern Sierra Nevada Mountains, Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill 2040 Comment
  UCR242372  Whitneya dealbata George K. Helmkamp, E. A. Helmkamp 2010-7-28 16674 Placer Northern Sierra Nevada Mountains, Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill 2040 Comment
  UCR242373  Lupinus arbustus George K. Helmkamp, E. A. Helmkamp 2010-7-28 16673 Placer Northern Sierra Nevada Mountains, Soda Springs Road, 0.3 mile north of its junction with Forest Hill Road at Robinson Flat 2024 Comment
  UCR242374  Calochortus leichtlinii George K. Helmkamp, E. A. Helmkamp 2010-7-28 16672 Placer Northern Sierra Nevada Mountains, Soda Springs Road, 0.3 mile north of its junction with Forest Hill Road at Robinson Flat 2024 Comment
  UCR242553  Trifolium glomeratum George K. Helmkamp, E. A. Helmkamp 2011-6-2 17457 Placer Northern Sierra Nevada Mountains Foothills, along CA-49 southeast of Auburn at a trail entrance to the Auburn State Recreation Area 354 Comment
  UCR246825  Penstemon roezlii George K. Helmkamp, E. A. Helmkamp 2010-7-28 16647 Placer Northern Sierra Nevada Mountains, Forest Hill Road at Hidden Treasure Road, 10.4 miles northeast of the city of Foresthill 1384 Comment
  UCR246826  Kelloggia galioides George K. Helmkamp, E. A. Helmkamp 2010-7-28 16658 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 Comment
  UCR246828  Phacelia hastata var. hastata George K. Helmkamp, E. A. Helmkamp 2010-7-28 16655 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill 2041 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
  UCR246831  Cymopterus terebinthinus var. californicus George K. Helmkamp, E. A. Helmkamp 2010-7-28 16665 Placer Northern Sierra Nevada Mountains, Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat 2040 Comment
  UCR247466  Eschscholzia caespitosa George K. Helmkamp, E. A. Helmkamp 2007-3-25 11709 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
  UCR249525  Triteleia hyacinthina George K. Helmkamp, Amy Barnes 2013-3-28 20281 Placer Eastern Sacramento Valley, along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 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
  UCR249527  Triphysaria versicolor subsp. faucibarbata George K. Helmkamp, Amy Barnes 2013-3-28 20297 Placer Eastern Sacramento Valley, northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  UCR249528  Lupinus bicolor George K. Helmkamp, Amy Barnes 2013-3-28 20290 Placer Eastern Sacramento Valley, northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  UCR249529  Lepidium strictum George K. Helmkamp, Amy Barnes 2013-3-28 20288 Placer Eastern Sacramento Valley, northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  UCR249530  Matricaria discoidea George K. Helmkamp, Amy Barnes 2013-3-28 20289 Placer Eastern Sacramento Valley, northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan 36 Comment
  UCR249531  Festuca perennis George K. Helmkamp, Amy Barnes 2013-3-28 20287 Placer Eastern Sacramento Valley, along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 Comment
  UCR249532  Lupinus bicolor George K. Helmkamp, Amy Barnes 2013-3-28 20286 Placer Eastern Sacramento Valley, along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 Comment
  UCR249533  Triphysaria eriantha George K. Helmkamp, Amy Barnes 2013-3-28 20285 Placer Eastern Sacramento Valley, along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan 43 Comment
  UCR249534  Trifolium tomentosum George K. Helmkamp, Amy Barnes 2013-3-28 2029