39.20111 39.30111 -120.40722 -120.30722 UC/JEPS: Consortium Search Results
Search Results — 1161 specimen records retrieved (1161 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  UCD23230  Abies concolor Beth Lowe Corbin 1982-8-19 389 Placer 1 1/2 miles south of The Cedars. 1889 Comment
  UCD23231  Abies magnifica Beth Lowe Corbin 1982-8-19 388 Placer 1 1/2 miles south of The Cedars. 1889 Comment
  SCFS11529149  Acer glabrum E. Krimmel 2014-6-26 Placer Road cut Comment
  SEINET12765775  Acer glabrum Rex Palmer 1979-5-27 N 67 Placer Confluence of two creeks.; 0 Comment
  UCD116957  Acer glabrum Rex Palmer 1979-5-27 N 67 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22100  Acer glabrum Rex Palmer 1979-5-27 N 67 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22102  Acer glabrum Rex Palmer 1979-5-27 N 32 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22104  Acer glabrum Rex Palmer 1979-6-21 N 395 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22096  Acer glabrum var. glabrum Beth Lowe Corbin 1982-8-4 245 Placer 1 1/4 mile NE of Onion Creek Campground. SE facing slope, 20% inclination. Partial sun. In damp canyon of white fir forest. Shrub 5 ft tall, with smooth, greyish bark. Fruit greenish. 2103 Comment
  SCFS1156  Achillea millefolium E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Cedar's Meadow. Comment
  UCD21682  Achillea millefolium Beth Lowe Corbin 1982-8-3 182 Placer Onion Creek campground. In fine, sandy, granitic soil, near streambed. Perennial herb, white flowers. Partial shade. SW facing slope. Common. 1841 Comment
  UCD22220  Achnatherum lemmonii Beth Lowe Corbin 1982-8-9 286 Placer 1/2 mile SW of Onion Creek Campground. S facing slope, 15% incline. Uncommon. Full sun. In rocky, fine, sandy soil. Open, logged, mixed conifer forest. Perennial. Leaves pale, bluish. 1767 Comment
  UCD22222  Achnatherum lemmonii Rex Palmer 1979-6-19 N 254 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC216415  Achnatherum lettermanii A. A. Heller 1917-8-14 12925 Placer Mount Lincoln, S of Summit Valley 2499 Comment
  CAS-BOT-BC216416  Achnatherum lettermanii A. A. Heller No date on label 12889 Placer Summit Station 2121 Comment
  UCD22221  Achnatherum nelsonii subsp. dorei Beth Lowe Corbin 1982-8-2 152 Placer Onion Creek Campground. S facing slope. Uncommon. Mostly shade. In fine, sandy, granitic soil in mixed conifer forest. Perennial bunchgrass, forming loose bunches. 1841 Comment
  UCD50815  Achnatherum nevadense A. A. Heller 1917-8-14 12925 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  UCD50816  Achnatherum nevadense Collector Unknown Date Unknown 12889 Placer Summit Station. 2121 Comment
  CAS-BOT-BC210837  Achnatherum occidentale subsp. californicum A. A. Heller 1917-8-14 12925 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  CAS-BOT-BC210838  Achnatherum occidentale subsp. californicum No date on label 12889 Placer Summit Station 2121 Comment
  GH361481  Achnatherum occidentale subsp. californicum A. A. Heller 1917-8-14 12925 Unknown Mt. Lincoln south of Summit valley 2499 Comment
  GH361486  Achnatherum occidentale subsp. californicum 12889 Unknown Summit Station Comment
  UC822001  Achnatherum occidentale subsp. californicum A. A. Heller 1917-8-14 12925 Placer s of Summit valley; Mt. Lincoln 2499 Comment
  UCD22218  Achnatherum occidentale subsp. californicum Beth Lowe Corbin 1982-8-12 336 Placer 1/3 mile NE of Onion Creek Campground. SW facing slope, 15% incline. Common. Partial sun. In organic, fine, sandy soil in opening in white fir forest. Perennial forming moderately small bunches. 1905 Comment
  UCD22223  Achnatherum occidentale subsp. californicum Rex Palmer 1979-6-21 N 356 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22219  Achnatherum occidentale subsp. occidentale Beth Lowe Corbin 1982-8-10 300 Placer 1 1/4 mile WNW of Onion Creek Campground. SE facing slope, 30% incline. Uncommon. Full sun. Open, granitic outcrop in montane chaparral. Bunchgrass, forming small tufts. 1981 Comment
  SCFS1229  Acmispon E. Krimmel 2014-6-26 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Comment
  UCD22015  Acmispon americanus var. americanus Beth Lowe Corbin 1982-8-9 273 Placer 1/4 mile SW of Onion Creek campground. In fine, sandy soil. Disturbed open area in White Fir forest. Prostrate herb. Flowers white. Full sun. South facing slope, 10% incline. Locally common. 1859 Comment
  UCD22075  Acmispon americanus var. americanus Rex Palmer 1979-7-12 N 597 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22016  Acmispon nevadensis Beth Lowe Corbin 1982-8-5 256 Placer Onion Creek campground. In sandy, granitic soil. Somewhat disturbed area in mixed Conifer forest. Prostrate, forming a loose mat. Flowers yellow, red on back of banner. Partila sun. SW facing slope, 15% incline. Common. 1859 Comment
  UCD22074  Acmispon nevadensis Rex Palmer 1979-7-26 N 833 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD104270  Acmispon nevadensis var. nevadensis R. Tofsrud 1951-7-1 s.n. Placer 5 mi. below Soda Springs, Hwy. 40. Comment
  SCFS1112  Aconitum columbianum E. Krimmel 2013-6-13 Placer NFAm. Stream crossing (split #4). Below Soda Springs road on way to Heath Falls Overlook. Comment
  UCD22174  Aconitum columbianum Rex Palmer 1979-7-10 N 530 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21931  Aconogonon davisiae Beth Lowe Corbin 1982-8-23 409 Placer 2 miles SW of the Cedars. In loose, fine sandy, rocky soil in open Red Fir forest. Stem pinkish. Calyx pinkish white. Full sun. North facing slope, 30% incline. Locally common. 2133 Comment
  UCD22143  Aconogonon davisiae Rex Palmer 1979-7-11 N 565 Placer Headwaters basin area of the North Fork of the American River. Comment
  CAS-BOT-BC418771  Aconogonon phytolaccifolium A. A. Heller 1917-8-14 12934 Placer Mt. Lincoln south of Summit Valley 2438 Comment
  UCD22141  Aconogonon phytolaccifolium Rex Palmer 1979-7-10 N 526 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22144  Aconogonon phytolaccifolium Rex Palmer 1979-7-25 N 674 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD98804  Aconogonon phytolaccifolium Rex Palmer 1979-7-25 N 674 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21683  Adenocaulon bicolor Beth Lowe Corbin 1982-8-6 259 Placer 1/8 mile west of Onion Creek campground. In deep conifer duff. Open area near stream. Perennial herb. White flowers. Partial sun. SW facing slope, 10% incline. Occasional. 1844 Comment
  GH345339  Adenostoma fasciculatum L. S. Smith 1932-5-11 Unknown In burn above Middle Fork American River. Forest Hill divide. Comment
  JEPS44803  Adenostoma fasciculatum L. S. Smith 1932-5-11 Placer above Middle Fork American R. Forest Hill divide Comment
  SCFS1145  Agastache urticifolia E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #5. Comment
  SCFS995  Agastache urticifolia E. Krimmel 2014-7-5 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Split time#3 Comment
  UCD22032  Agastache urticifolia Beth Lowe Corbin 1982-8-3 176 Placer Onion Creek campground. Along streambank but away from water. Perennial herb, with pinkish purple flowers, and strong mint odor. Mostly sun. Uncommon. Southwest facing slope. 1841 Comment
  UCD22078  Agastache urticifolia Rex Palmer 1979-7-25 N 804 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22079  Agastache urticifolia Rex Palmer 1979-7-11 N 583 Placer Headwaters basin area of the North Fork of the American River. Comment
  SCFS1231  Ageratina occidentalis E. Krimmel 2014-6-26 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Comment
  UCD21769  Ageratina occidentalis Beth Lowe Corbin 1982-8-13 338 Placer 1 1/3 mile SSW of Onion Creek campground. 1645 Comment
  UCD21684  Agoseris retrorsa Beth Lowe Corbin 1982-8-4 223 Placer 1/4 mile NW of Onion Creek campground. 1950 Comment
  SEINET3258002 Image available 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
  UCR201890  Agrostis George K. Helmkamp, E. A. Helmkamp 2008-8-20 14034 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
  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
  SACT000128  Agrostis diegoensis D. Meyer 1984-7-15 Placer Soda Springs Rd. 3.3 mi from Sevene Lakes Lodge. 1909.0 Comment
  CAS-BOT-BC127106  Agrostis exarata 12891 Placer Summit Station. 2121 Comment
  CAS-BOT-BC127108  Agrostis exarata 12891 Placer Summit Station. 2121 Comment
  GH341230  Agrostis exarata 12891 Unknown Summit Station Comment
  SACT000088  Agrostis exarata D. Meyer 1984-9-9 Placer At the east fork of the North Fork of the North Fork of the American River 1394.0 Comment
  UC815012  Agrostis exarata A. S. Hitchcock 12891 Placer Summit Station 2121 Comment
  UCD52333  Agrostis exarata Hitchcock Date Unknown 12891 Placer Summit Station. 2121 Comment
  UCD52347  Agrostis exarata Hitchcock Date Unknown 12891 Placer Summit Station. 2121 Comment
  SACT000184  Agrostis idahoensis D. Meyer 1984-7-15 Placer edge of Serene Lake 2085.0 Comment
  SACT000188  Agrostis idahoensis Michael Baad 1976-7-21 Placer NE corner. 10 miles southeast of Soda Springs. 2377.44 Comment
  CAS-BOT-BC138999  Agrostis pallens 12892 Placer Summit Station. 2121 Comment
  CAS-BOT-BC139002  Agrostis pallens 12892 Placer Summit Station. 2121 Comment
  UC814990  Agrostis pallens unknown 12892 Placer Summit Station 2121 Comment
  UCD22260  Agrostis pallens Rex Palmer 1979-7-26 N 815 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD53085  Agrostis pallens A. S. Hitchcock Date Unknown 12892 Placer Summit Station, upper limit of the yellow pine belt (P. Jeffreyi). 2121 Comment
  UCD53209  Agrostis pallens A. S. Hitchcock Date Unknown 12892 Placer Summit Station. 2121 Comment
  SACT000149  Agrostis scabra D. Meyer 1984-7-15 Placer 1909.0 Comment
  SACT000156  Agrostis scabra D. Meyer 1984-7-15 Placer 4.8 km from the lodge 1909.0 Comment
  UCD22258  Agrostis scabra Beth Lowe Corbin 1982-8-9 275 Placer 1/4 mile SW of Onion Creek Campground. S facing slope, 10% incline. Mostly sun. Common. Small, grassy meadow in white fir forest in fine, sandy soil. Perennial, forming loose bunches. 1859 Comment
  UCD22259  Agrostis scabra Beth Lowe Corbin 1982-8-3 173 Placer Onion Creek Campground. S facing slope. Sun to partial shade. Not abundant. Open meadow in mixed conifer forest in fine, sandy, granitic soil. Perennial bunchgrass, forming thick clumps. 1841 Comment
  SACT000198  Agrostis stolonifera var. major D. Meyer 1984-9-9 Placer east fork of the north fork of north fork of the American River 1394.0 Comment
  SACT000199  Agrostis stolonifera var. major D. Meyer 1984-9-9 Placer east fork of the north fork of the north fork of the American River 1394.0 Comment
  SACT000240  Agrostis thurberiana D. Meyer Placer On road 30 miles from Sevene Lakes Lodge 1909.0 Comment
  SACT000248  Agrostis variabilis D. Meyer 1984-7-15 Placer 1909.0 Comment
  UCD22257  Agrostis variabilis Beth Lowe Corbin 1982-8-18 372 Placer 1 1/4 miles SW of The Cedars. NE facing slope, 10% incline. Mostly sun. Occasional. Opening in white fir forest in rocky, fine, sandy, granitic soil. Perennial forming very small tufts. 1813 Comment
  UCD53721  Agrostis variabilis R. Tofsrud 1951-7-1 s.n. Placer Hwy. 40, 5 mi. below Soda Springs. Comment
  UCD22043  Allium amplectens Rex Palmer 1979-7-9 N 454 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22047  Allium campanulatum Beth Lowe Corbin 1982-8-4 227 Placer 1/4 mile NW of Onion Creek Campground. 1981 Comment
  SCFS1194  Allium obtusum E. Krimmel 2014-4-21 Placer Pt. Mariah Comment
  UCD22039  Allium obtusum Rex Palmer 1979-6-21 N 424 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22040  Allium obtusum Rex Palmer 1979-6-21 N 365 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22041  Allium obtusum Rex Palmer 1979-5-27 N 76 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22042  Allium obtusum Rex Palmer 1979-7-11 N 571 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22044  Allium obtusum Rex Palmer 1979-6-10 N 183 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD128390  Allium platycaule Albert Grigarick 2012-7-9 337 Placer Sugar Bowl resort, on ridge with Judah Lift, W of Judah Peak Trail 30 yd, on W side. 2490 Comment
  UCD22045  Allium platycaule Rex Palmer 1979-6-9 N 165 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  UCD22046  Allium platycaule Beth Lowe Corbin 1982-8-4 238 Placer 1 1/2 mile NNW of Onion Creek campground. 2286 Comment
  UCD21982  Allophyllum integrifolium Beth Lowe Corbin 1982-8-6 268 Placer 1/2 mile west of Onion Creek campground. 1981 Comment
  CDA16040  Alnus incana subsp. tenuifolia G. F. Hrusa, J. Glazner 2000-9-3 15673 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD22111  Alnus incana subsp. tenuifolia Rex Palmer 1979-5-26 N 33 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22113  Alnus incana subsp. tenuifolia Beth Lowe Corbin 1982-8-2 166 Placer Onion Creek Campground. South facing slope. Full sun. All along Onion Creek, in mixed conifer forest. Tall shrub 1-2 m tall, with greyish bark. 1841 Comment
  SACT002783  Alnus tenuifolia Michael Baad 1983-9-3 Placer Collected from Spitz Inn to wester slope of Mount Judah near summit 2286.0 Comment
  UCD22262  Amelanchier utahensis Beth Lowe Corbin 1982-8-3 202 Placer Hill NW of Onion Creek Campground. 1853 Comment
  UCD22263  Amelanchier utahensis Rex Palmer 1979-6-8 N 112 Placer Headwaters basin area of the North Fork of the American River Comment
  CDA16050  Anaphalis margaritacea G. F. Hrusa, J. Glazner 2000-9-3 15661 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  SCFS11529131  Anaphalis margaritacea E. Krimmel 2012-8-28 Placer NFAm below Chickering bridge. Growing near drying stream bed. Comment
  SCFS1165  Anaphalis margaritacea E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Creekside at Chickering. Comment
  UCD128779  Anaphalis margaritacea Rex Palmer Date Unknown N 887 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21685  Anaphalis margaritacea Beth Lowe Corbin 1982-8-3 179 Placer Onion Creek campground. In open dry meadow. Perennial herb, phyllaries papery white, disk flowers yellow. Mostly sun. SW facing slope. Uncommon. 1841 Comment
  UCD21771  Anaphalis margaritacea Rex Palmer Date Unknown N 887 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21840  Angelica breweri Beth Lowe Corbin 1982-8-12 330 Placer Onion Creek campground. In wet soil along streambank. Perennial herb 2 1/2' high. Flowers whitish. Full sun. SW facing slope, 5% incline. Occasional. 1841 Comment
  UCD21686  Antennaria rosea Rex Palmer 1979-7-26 N 889 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21687  Antennaria rosea Rex Palmer 1979-6-20 N 309 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1158  Apocynum androsaemifolium E. Krimmel, F. Felix 2013-7-26 Placer NFAm. Swimming Hole Trail. Rocky overlook. Stop #2. Comment
  UC878847  Apocynum androsaemifolium unknown 122887 Placer Summit Station 2121 Comment
  UCD22105  Apocynum androsaemifolium Rex Palmer 1979-7-12 N 601 Placer Headwaters Basin Area of the North Fork of the American River. Comment
  UCD22107  Apocynum androsaemifolium Beth Lowe Corbin 1982-8-4 208 Placer 1/4 mile W of Onion Creek Campground. 1889 Comment
  SCFS1024  Apocynum cannabinum E. Krimmel 2014-7-5 Placer Beside seep next to driveway. Comment
  SCFS1217  Aquilegia formosa E. Krimmel 2013-6-29 Placer NFAm. In shade of alder, just E of the North Fork American River stream crossing on Foresthill Road. Comment
  UCD22175  Aquilegia formosa Beth Lowe Corbin 1982-8-23 402 Placer 2 1/4 miles WSW of The Cedars. N facing slope, 30% incline. Partial sun. Occasional. Along drainage way in logged white fir forest. Sepals scarlet, petals yellow. 1981 Comment
  UCD22176  Aquilegia formosa Rex Palmer 1979-6-20 N 350 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR270693  Arabis John F. Emmel 1998-7-9 1571 Placer Sierra Nevada Mountains, Donner Pass area, south peak of Mt. Judah 2513 Comment
  UCR270694  Arabis holboellii John F. Emmel 1998-7-9 1572 Placer Sierra Nevada Mountains, Donner Pass area, south peak of Mt. Judah 2513 Comment
  UCD22001  Arceuthobium douglasii Rex Palmer 1979-5-27 N 84 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21476  Arctostaphylos Rex Palmer 1979-5-26 N 11 Placer Headwaters basin area of the North Fork of the American River. 2011 Comment
  UCD21472  Arctostaphylos nevadensis Beth Lowe Corbin 1982-8-4 236 Placer One and 1/8 mile NNW of Onion Creek Campground. 2194 Comment
  UCD21475  Arctostaphylos nevadensis Rex Palmer 1979-5-26 N 3 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD21478  Arctostaphylos nevadensis Rex Palmer 1979-5-27 N 81 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21473  Arctostaphylos patula Beth Lowe Corbin 1982-8-18 368 Placer One mile SW of The Cedars. 1828 Comment
  UCD21474  Arctostaphylos patula Rex Palmer 1979-5-26 N 1 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD21477  Arctostaphylos patula Rex Palmer 1979-5-27 N 64 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1103  Arctostaphylos viscida E. Krimmel 2014-6-26 Placer "Land of the Lost": on trail, 1/3 of the way from Serena Creek to Heath Falls Overlook. Comment
  UC1125757  Arenaria kingii var. glabrescens N. French 1934-6-22 448 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle 2286 Comment
  UCD21689  Arnica Rex Palmer 1979-6-21 N 415 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21794  Arnica dealbata Beth Lowe Corbin 1982-8-19 380 Placer 1 1/2 miles south of The Cedars. 1874 Comment
  UCD69355  Arnica dealbata S. Rivas; M. Barbour, D. S. Mata, P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. 2100 Comment
  UCD21688  Arnica discoidea Beth Lowe Corbin 1982-8-23 404 Placer 2 1/4 miles WSW of The Cedars. 1981 Comment
  CAS-BOT-BC82683  Arnica longifolia Betty J. Jorgensen 1944-7-23 530 Placer Near Soda Springs Comment
  CAS-BOT-BC85174  Arnica mollis F. Almeda 1993-7-25 7295 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass. 1920 Comment
  UCD21690  Arnica parryi Beth Lowe Corbin 1982-8-17 360 Placer 2 2/3 miles WSW of The Cedars. 1935 Comment
  UC1119382  Artemisia arbuscula N. French 1934-6-22 450 Placer 7/8 mi from Lake Dulzura; Truckee Quadrangle Comment
  UCD21695  Artemisia arbuscula Beth Lowe Corbin 1982-8-4 214 Placer 1/4 miles NW of Onion Creek campground. In rocky, fine sandy granitic soil. Open area in montane chaparral. Low shrub, branches 8' high. Inflorescences 12'. Aromatic. Full sun. SW facing slope, 20% incline. Locally common. 1950 Comment
  UCD129252  Artemisia douglasiana Rex Palmer Date Unknown N 888 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21691  Artemisia douglasiana Rex Palmer Date Unknown N 888 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21692  Artemisia ludoviciana Rex Palmer 1979-6-20 N 285 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21694  Artemisia ludoviciana Beth Lowe Corbin 1982-8-5 254 Placer Onion Creek campground. 1841 Comment
  RSA39961  Artemisia ludoviciana subsp. incompta J. T. Howell 1943-7-26 18856 Placer Mt. Lincoln. Comment
  UCD21693  Artemisia rothrockii Rex Palmer 1979-6-9 N 140 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UC1119437  Artemisia spiciformis B. Bolt 1934-7-16 113 Placer 1 1/2 mi sse Heath Springs (on Plot 206); Tahoe National Forest, Truckee Quadrangle Comment
  UCD21696  Artemisia tridentata Beth Lowe Corbin 1982-8-24 412 Placer 2 1/4 miles south of The Cedars. In fine, sandy, rocky soil. Open Red Fir forest. Shrub to 2' high. Flowers yellow. Foliage aromatic. Mostly sun. NW facing slope, 40% incline. Commmon. 2164 Comment
  SCFS5097  Asclepias cordifolia F. Felix, Erica Krimmel 2013-5-19 17 Placer North Fork American River, 0.3 mile east Heath Falls overlook, on trail Comment
  CAS-BOT-BC69578  Aspidotis densa C. F. Sonne 1886-7-5 321 Placer Sierra Nevada Mts., above Summit Station. Comment
  CDA16048  Aster breweri G. F. Hrusa, J. Glazner 2000-9-3 15664 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CDA16047  Aster eatonii G. F. Hrusa, J. Glazner 2000-9-3 15665 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of Crow's Nest ski run. 2164 Comment
  CDA16055  Aster eatonii G. F. Hrusa, J. Glazner 2000-9-3 15683 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 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
  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
  SCFS1172  Asteraceae E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Road at Chickering. Comment
  SCFS1187  Asteraceae E. Krimmel 2014-4-21 Placer NFAm. 200 yards south of Pt. Mariah warming hut Comment
  SCFS1227  Asteraceae E. Krimmel 2014-6-26 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Comment
  CAS-BOT-BC192930  Astragalus purshii var. lectulus L. S. Smith 1938-7-22 2795 Placer Tahoe National Forest. Near Ice Lakes - road from Soda Spgs. 2133 Comment
  UCD22021  Astragalus whitneyi Rex Palmer 1979-6-9 N 137 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  CAS-BOT-BC200880  Astragalus whitneyi var. lenophyllus John Thomas Howell 1943-7-21 18672 Placer Mt. Lincoln Comment
  CDA16051  Athyrium filix-femina G. F. Hrusa, J. Glazner 2000-9-3 15669 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CHSC85762  Athyrium filix-femina G. F. Hrusa; J. Glazner 2000-9-3 15669 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD23226  Athyrium filix-femina Beth Lowe Corbin 1982-8-13 339 Placer 1 mile west of The Cedars. In sandy soil between rocks along the north fork of the American River. 1630 Comment
  UCD21699  Balsamorhiza sagittata Rex Palmer 1979-6-9 N 160 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21700  Balsamorhiza sagittata Rex Palmer 1979-6-20 N 321 Placer Placer County Headwaters basin area of the North Fork of the American River Comment
  UCD22357  Barbarea orthoceras Rex Palmer 1979-6-20 N 345 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22358  Barbarea orthoceras Rex Palmer 1979-7-12 N 631 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22359  Barbarea orthoceras Rex Palmer 1979-7-12 N 629 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22335  Boechera Rex Palmer 1979-6-20 N 326 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22336  Boechera Rex Palmer 1979-6-19 N 264 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22355  Boechera Rex Palmer 1979-6-21 N 380 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22349  Boechera breweri Rex Palmer 1979-6-21 N 388 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22351  Boechera lyallii Rex Palmer 1979-7-12 N 644 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22338  Boechera pendulocarpa Rex Palmer 1979-6-21 N 426 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22340  Boechera pendulocarpa Rex Palmer 1979-6-9 N 133 Placer Headwaters basin area of the North Fork of the American River. 2438 Comment
  UCD22333  Boechera platysperma Beth Lowe Corbin 1982-8-4 242 Placer 1 1/2 mile N of Onion Creek Campground. E facing slope, 50% inclination. Unocommon. Full sun. In rocky and fine, sandy, granitic soil of loose talus slope in white fir forest. 2255 Comment
  UCD22334  Boechera retrofracta Beth Lowe Corbin 1982-8-2 157 Placer Onion Creek Campground. S facing slope. Partial shade. Uncommon clumps of about 25 plants. In shallow, conifer litter over fine, sandy, granitic soil in mixed evergreen forest. Biennial herb, flowers white. 1841 Comment
  UCD22341  Boechera retrofracta Rex Palmer 1979-6-20 N 311 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22343  Boechera retrofracta Rex Palmer 1979-6-8 N 114 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22344  Boechera retrofracta Rex Palmer 1979-6-19 N 240 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22345  Boechera retrofracta Rex Palmer 1979-6-19 N 232 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22348  Boechera retrofracta Rex Palmer 1979-6-19 N 247 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21701  Brickellia greenei Beth Lowe Corbin 1982-8-5 255 Placer Placer County11:08:39 AM Onion Creek campground. 1841 Comment
  UCD22038  Brodiaea elegans subsp. elegans Beth Lowe Corbin 1982-8-9 285 Placer 1/2 mile SW of Onion Creek. 1767 Comment
  CDA31380  Bromus carinatus James D. Jokerst 1986-7-13 2741 Unknown Trail from The Cedars, high Sierra Nevada SW of Donner Lake, above Ted Beedy s El Cap on trail traversing slope. 0 Comment
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Feb 22 2016
  UCD22239  Bromus carinatus var. carinatus Rex Palmer 1979-7-26 N 817 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22240  Bromus carinatus var. carinatus Rex Palmer 1979-7-12 N 613 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22242  Bromus carinatus var. carinatus Rex Palmer 1979-7-9 N 448 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22243  Bromus carinatus var. carinatus Rex Palmer 1979-7-12 N 640 Placer Headwaters basin area of the North Fork of the American River Comment
  CHSC67739  Bromus carinatus var. marginatus Jame D. Jokerst 1986-7-13 2741 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, above Ted Beedy's 'El Cap'. Comment
  CHSC68069  Bromus carinatus var. marginatus James D. Jokerst 1986-7-12 2684 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, on N side of river. Comment
  SACT000703  Bromus marginatus Michael Baad 1976-7-22 Placer Ascent of south-facing slope of peak from trail to crest, red-fir forest and meadows 2377.0 Comment
  UCD22238  Bromus orcuttianus Beth Lowe Corbin 1982-8-2 165 Placer Onion Creek Campground. S facing slope. Partial sun. Scattered clumps are common, but cover little percentage of area. In mixed conifer forest openings, in conifer duff over fine, sandy, granitic soil. Perennial with small, loose tufts. 1841 Comment
  CAS-BOT-BC161571  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Placer Mount Lincoln south of Summit Valley. 2499 Comment
  CAS-BOT-BC161572  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Placer Mount Lincoln south of Summit Valley. 2499 Comment
  CDA16033  Bromus suksdorfii G. F. Hrusa, J. Glazner 2000-9-3 15680 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. Abies concolor, A. magnifica, Pinus monticola, P. contorta forest with dense herbaceous understory. Common, cutover understory, in openings. 2164 Comment
  GH361932  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Unknown Mt. Lincoln south of Summit valley 2499 Comment
  SACT000755  Bromus suksdorfii Michael Baad 1983-9-3 Placer form saddle between Mount Judah and Mount Lincoln 2529.0 Comment
  UC905446  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Placer s of Summit Valley (Mount Lincoln); Mount Lincoln 2499 Comment
  UCD22237  Bromus suksdorfii Beth Lowe Corbin 1982-8-19 376 Placer 1 1/4 miles SSW of The Cedars. NE facing slope, 20% incline. Occasional. Mostly sun. In rocky, fine, sandy soil of logged white fir forest. Perennial forming moderately small bunches. 1828 Comment
  UCD59734  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  UCD59738  Bromus suksdorfii A. A. Heller 1917-8-14 12924 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  UCD22236  Bromus tectorum Beth Lowe Corbin 1982-8-20 401 Placer Onion Creek Campground. S facing slope, 10% incline. Common. Full sun. In fine, sandy, disturbed soil along roadside by dry meadow in white fir forest. 1841 Comment
  UCD22241  Bromus tectorum Rex Palmer 1979-6-21 N 355 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD162759  Calocedrus decurrens Dylan O. Burge; J. Bisbee 2014-5-25 1638 Placer Soda Springs Road. 2009 Comment
  UCD22088  Calocedrus decurrens Beth Lowe Corbin 1982-8-25 419 Placer Onion Creek Campground. South facing slope, 15% incline. Full sun. In fine, sandy soil of mixed conifer forest. Tree 50 ft tall, with reddish, peeling bark. 1841 Comment
  UCD22048  Calochortus leichtlinii Beth Lowe Corbin 1982-8-4 233 Placer 1 1/8 miles NNW of Onion Creek Campground. 2194 Comment
  UCD22049  Calochortus leichtlinii Rex Palmer 1979-6-19 N 269 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22050  Calochortus leichtlinii Rex Palmer 1979-7-12 N 647 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22177  Caltha leptosepala Rex Palmer 1979-7-11 N 533 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21926  Calyptridium umbellatum Beth Lowe Corbin 1982-8-2 150 Placer Onion Creek campground. 1841 Comment
  UCD22154  Calyptridium umbellatum Rex Palmer 1979-6-19 N 238 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22361  Cardamine breweri Beth Lowe Corbin 1982-8-12 331 Placer Onion Creek Campground. SW facing slope, 5% incline. Mostly sun. Abundant. In shallow, boggy stream, in mixed conifer forest. Flowers white. 1841 Comment
  UCD22365  Cardamine breweri Rex Palmer 1979-7-26 N 835 A Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21845  Carex Beth Lowe Corbin 1982-8-3 178 Placer Onion Creek campground. In fine, sandy, granitic soil of open meadow near creek. Perennial, forming large clumps. Inflorescence brown. Mostly sun. Common. Southwest facing slope. 1841 Comment
Read comments
Feb 2 2007
  UCR179180  Carex Beth Lowe Corbin 1982-8-3 178 Placer Sierra Nevada Mtns., Headwaters Basin Area of the North Fork American River, Onion Creek Campground 1841 Comment
  UCD21842  Carex filifolia var. erostrata Rex Palmer 1979-7-19 N 235 Placer Headwaters basin area of the North Fork of the American River Comment
  CDA16044  Carex heteroneura G. F. Hrusa, J. Glazner 2000-9-3 15668 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of Crow's Nest ski run. 2164 Comment
  CHSC69224  Carex heteroneura var. heteroneura James D. Jokerst 1986-7-12 2696 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  CHSC68057  Carex hoodii James D. Jokerst 1986-7-13 2699 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  CHSC68059  Carex hoodii James D. Jokerst 1986-7-12 2692 A Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  CHSC68058  Carex integra James D. Jokerst 1986-7-12 2692 B Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  CHSC68060  Carex integra James D. Jokerst 1986-7-13 2704 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  CHSC67706  Carex luzulifolia James D. Jokerst 1986-7-13 2718 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, in Sheet Valley. 2133 Comment
  CHSC67709  Carex luzulifolia James D. Jokerst 1986-7-13 2719 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, in Sheet Valley. 2133 Comment
  CHSC68061  Carex multicostata James D. Jokerst 1986-7-13 2703 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  CHSC68062  Carex raynoldsii James D. Jokerst 1986-7-13 2702 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  CHSC68063  Carex rossii James D. Jokerst 1986-7-12 2697 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  UCD21843  Carex rossii Rex Palmer 1979-6-21 N 361 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  CHSC67708  Carex scopulorum var. bracteosa James D. Jokerst 1986-7-13 2722 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, in Sheet Valley. 2133 Comment
  CAS-BOT-BC116993  Carex straminiformis John Thomas Howell 1943-7-21 18667 Placer Mt. Lincoln Comment
  CAS-BOT-BC116995  Carex straminiformis A. A. Heller 1917-8-14 12927 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  CAS-BOT-BC116996  Carex straminiformis A. A. Heller 1917-8-14 12927 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  UC836018  Carex straminiformis A. A. Heller 1917-8-14 12927 Placer s Summit valley; Mt. Lincoln 2499 Comment
  UCD21841  Carex straminiformis Rex Palmer 1979-7-9 N 444 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCR179196  Carex straminiformis Rex Palmer 1979-7-9 N- 444 Placer Sierra Nevada Mtns., Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden] 2134 Comment
  CHSC68064  Carex subfusca James D. Jokerst 1986-7-12 2693 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  SCFS1236  Castilleja E. Krimmel 2013 or 2014 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook at Land of the Lost. Comment
  UCD21858  Castilleja Rex Palmer 1979-6-19 N 234 Placer Exact location unknown. Comment
  UCD21859  Castilleja Rex Palmer 1979-7-12 N 616 Placer Exact location unknown. Comment
  UCD21860  Castilleja Rex Palmer 1979-7-10 N 516 Placer Exact location unknown. Comment
  UCD21862  Castilleja Rex Palmer 1979-6-20 N 341 Placer Exact location unknown. Comment
  UCD21863  Castilleja Rex Palmer 1979-7-11 N 573 Placer Exact location unknown. Comment
  SCFS1148  Castilleja applegatei E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #4. Comment
  JEPS22904  Castilleja miniata John H. and Hazelle A. Thomas Jul 21 1956-Jul 22 1956 6214 Placer vicinity Donner Pass (about 80 mi ne of Sacramento); Sierra Nevada, Donner Pass 2133 Comment
  UCD21855  Castilleja miniata Beth Lowe Corbin 1982-8-6 265 Placer 1/2 mile SW of Onion Creek campground. 1905 Comment
  CDA16053  Castilleja miniata subsp. miniata G. F. Hrusa, J. Glazner 2000-9-3 15660 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD21856  Castilleja pilosa Beth Lowe Corbin 1982-8-11 313 Placer 1 1/2 mile WSW of Onion Creek campground. 1935 Comment
  UCD21857  Castilleja pruinosa Beth Lowe Corbin 1982-8-3 196 Placer Hill west of Onion Creek campground. 1853 Comment
  UCD21897  Castilleja tenuis Beth Lowe Corbin 1982-8-5 258 Placer Onion Creek campground. 1841 Comment
  SCFS5100  Ceanothus F. Felix, Erica Krimmel 2013-5-26 47 -B Placer North Fork/Chickering American River Reserve. Where Cedar Meadows trail meets Cedar Creek falls. Comment
  UCD143724  Ceanothus arcuatus F. Felix, E. Krimmel 2013-5-26 45 Placer North Fork/Chickering American River Reserve. Where Cedar Meadows trail meets Cedar Creek Falls. Comment
  UCD143727  Ceanothus arcuatus F. Felix, E. Krimmel 2013-5-26 47 -A Placer North Fork/Chickering American River Reserve. Where Cedar Meadows trail meets Cedar Creek Falls. Comment
  UCD150786  Ceanothus arcuatus J. Bisbee 2013-5-25 565 Placer Soda Springs Road; 1 mile west of where pavement ends; on south side of road. 2040 Comment
  UCD162758  Ceanothus arcuatus Dylan O. Burge; J. Bisbee 2014-5-25 1637 Placer Soda Springs Road. 2009 Comment
  CAS-BOT-BC47891  Ceanothus cordulatus F. Almeda 1993-7-24 7273 Placer About 15 miles SE of Interstae Hwy #80 at Soda Springs on the trail to Upper Sheep Valley. 2133 Comment
  SCFS5099  Ceanothus cordulatus F. Felix, Erica Krimmel 2013-5-26 48 -B Placer North Fork/Chickering American River Reserve. 0.1 mile south of where Onion creek crosses Cedars Road. Comment
  UCD111394  Ceanothus cordulatus Ted C. MacRae 1995-7-30 62 a Placer Tahoe National Forest, 9 miles south of Serene Lakes on Soda Springs Road. Comment
  UCD143726  Ceanothus cordulatus F. Felix, E. Krimmel 2013-5-26 48 -A Placer North Fork/Chickering American River Reserve. 0.1 mile south of where Onion Creek crosses Cedars Road. Comment
  UCD22198  Ceanothus cordulatus Beth Lowe Corbin 1982-8-2 149 Placer Onion Creek Campground. S facing slope, 25% incline. Partial sun. Dominant shrub, fairly abundant. In open area between trees, in mixed conifer forest, on fine, sandy, granitic soil. Spiny shrub 1 m tall, with smooth, grey bark. 1841 Comment
  UCD22205  Ceanothus cordulatus Rex Palmer 1979-5-26 N 14 Placer Headwaters basin area of the North Fork of the American River 1950 Comment
  UCD22206  Ceanothus cordulatus Rex Palmer 1979-6-21 N 398 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22207  Ceanothus cordulatus Rex Palmer 1979-5-26 N 26 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22208  Ceanothus cordulatus Rex Palmer 1979-5-26 N 40 Placer Headwaters basin area of the North Fork of the American River 1889 Comment
  UCD143725  Ceanothus cuneatus F. Felix, E. Krimmel 2013-5-26 46 Placer North Fork/Chickering American River Reserve. 0.2 mile downstream from where Cedar Meadows trail meets Cedar Creek Falls. Comment
  JEPS26854  Ceanothus fresnensis L. S. Smith 1931-8-28 2632 Placer Onion Creek, North Fork American River 2133 Comment
  UC1070650  Ceanothus fresnensis B. Bolt 1934-7-16 118 Placer 1 1/2 miles SE of Health Springs 2164 Comment
  UCD22199  Ceanothus fresnensis Beth Lowe Corbin 1982-8-4 215 Placer 1/4 mile NW of Onion Creek Campground. SW facing slope, 20% inclination. Full sun. Locally common. In opening in montane chaparral, inrocky, fine, sandy, granitic soil. Low, compact, rigidly branched shrub. Light dry bark, reddish twigs and fruit. Less than 1 ft tall, 3 ft across. 1950 Comment
  UCD22200  Ceanothus fresnensis Rex Palmer 1979-5-27 N 82 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22201  Ceanothus fresnensis Rex Palmer 1979-5-26 N 19 Placer Headwaters basin area of the North Fork of the American River 1950 Comment
  UCD22202  Ceanothus fresnensis Rex Palmer 1979-5-26 N 4 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD22203  Ceanothus fresnensis Rex Palmer 1979-6-9 N 143 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  UCD22204  Ceanothus fresnensis Rex Palmer 1979-5-27 N 110 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22197  Ceanothus integerrimus Beth Lowe Corbin 1982-8-2 160 Placer Onion Creek Campground. S facing slope. Infrequent. Mostly sun. Opening in mixed conifer forest on fine, sandy, granitic soil. Deciduous shrub about 2 ft tall, with white flowers. 1841 Comment
  UCD22210  Ceanothus integerrimus Rex Palmer 1979-6-21 N 394 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22211  Ceanothus integerrimus Rex Palmer 1979-6-21 N 394 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22212  Ceanothus integerrimus Rex Palmer 1979-6-21 N 392 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR270695  Ceanothus prostratus John F. Emmel 1998-7-9 1573 Placer Sierra Nevada Mountains, Donner Pass area, south peak of Mt. Judah 2513 Comment
  UCD112784  Ceanothus velutinus Rex Palmer 1979-5-26 N 5 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD22196  Ceanothus velutinus Beth Lowe Corbin 1982-8-20 395 Placer 1 1/4 miles NW of Onion Creek Campground. SW facing slope, 20% incline. Occasional. Partial sun. In fine, sandy soil of white fir forest. Loosely branched shrub to 5 ft tall. Flowers dried, whitish. Fruit green. Foliage aromatic, like balsam. 2133 Comment
  UCD22209  Ceanothus velutinus Rex Palmer 1979-5-26 N 5 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD21702  Chaenactis douglasii Beth Lowe Corbin 1982-8-4 210 Placer 1/3 mile west of Onion Creek campground. In rocky and fine, sandy soil. Opening in montane chaparral. Perennial herb with purplish stems, creme colored flowers. Full sun. West facing slope, 30% incline. Uncommon. 1859 Comment
  CAS-BOT-BC276714  Chaenactis douglasii var. douglasii F. Almeda 1993-7-24 7275 Placer About 15 miles SE of Interstate Highway #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  CAS-BOT-BC277774  Chaenactis nevadensis John Thomas Howell 1943-7-21 18665 Placer Mt. Lincoln Comment
  SCFS1143  Chamerion angustifolium E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Heath Falls Trail. Large path where trail heads down to river, between 1st and 2nd creek crossings. Comment
  UCD21993  Chamerion angustifolium Beth Lowe Corbin 1982-8-3 186 Placer Onion Creek campground. In fine, sandy, granitic, rocky soil. Herb 4 1/2' high, simple stem, flowers reddish purple. Full sun. Southwest facing slope. Locally abundant. 1841 Comment
  UCD137431  Cheilanthes gracillima S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  UCD23228  Cheilanthes gracillima Beth Lowe Corbin 1982-8-9 287 Placer 2/3 mile southwest of Onion Creek campground. 1767 Comment
  UCD69353  Cheilanthes gracillima S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  CAS-BOT-BC426338  Chenopodium atrovirens John Thomas Howell 1943-7-26 18848 Placer Mt. Lincoln Comment
  UCD22173  Chenopodium atrovirens Beth Lowe Corbin 1982-8-17 362 Placer 1 2/3 miles SW of The Cedars. NW facing slope, 10% incline. Partial sun. Occasional. In sandy, disturbed soil on logging skid trail in white fir forest near creek. Calyx green, no petals. 1813 Comment
  UCD21922  Chimaphila menziesii Beth Lowe Corbin 1982-8-3 192 Placer 1/8 mile NW of Onion Creek campground. In 2 inch conifer needle duff, over fine, sandy, granitic soil. Petals white, calyx with red edge. Mostly shade. Uncommon, widely scattered. SW facing slope. 1853 Comment
  UCD22161  Chimaphila menziesii Rex Palmer 1979-6-19 N 219 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22051  Chlorogalum pomeridianum Beth Lowe Corbin 1982-8-11 317 Placer 1 2/3 miles SW of Onion Creek Campground. SE facing slope, 30% incline. Full sun. Common. In rocky slope of montane chaparral. Flowers white, with purplish midribs. 1905 Comment
  UCD21484  Chrysolepis sempervirens Beth Lowe Corbin 1982-8-3 200 Placer Located on hill west of Onion Creek Campground. 1853 Comment
  UCD21485  Chrysolepis sempervirens Rex Palmer 1979-5-26 N 20 Placer Headwaters basin area of the North Fork of the American River 1950 Comment
  UCD21705  Chrysopsis breweri Rex Palmer Date Unknown N 891 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21709  Chrysothamnus Rex Palmer 1979-6-9 N 139 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD21669  Cicuta douglasii Beth Lowe Corbin 1982-8-12 330 Placer Onion Creek campground. Perennial herb 2.5 feet high. Flowers whitish. In wet soil along streambank. Full sun. SW facing slope, 5% incline. Occasional. 1841 Comment
  SACT000748  Cinna latifolia D. Meyer 1984-7-15 Placer 12.64 km from Serene Lakes Lodge moist roadside stream. 1909.0 Comment
  UCD21997  Circaea alpina subsp. pacifica Beth Lowe Corbin 1982-8-6 261 Placer 1/8 mile W of Onion Creek campground. In fine, sandy soil along stream's edge. Flowers white. Mostly shade. SW facing slope, 10% incline. Uncommon. 1844 Comment
  SCFS1026  Cirsium andersonii F. Felix 2014-7-5 Placer Between Onion and Cedar Creeks, on terrace above NF channel Comment
  SEINET7451050 Image available Cirsium andersonii D. Micelli, M. Koski 2009-8-24 NV 030 -276 Placer [Sierra Nevada] Highway 80 W into Calif, exit Donner Pass rd., head towards Donner campground, keep on Donner Pass until Soda Springs road then turn L. Follow Soda Springs road until you get to dirt, follow for approximately 4 miles to collection site, Onion Creek 1862 Comment
  UCD21710  Cirsium andersonii Beth Lowe Corbin 1982-8-3 204 Placer Onion Creek campground. In fine, sandy, granitic soil. Disturbed area of White Fir forest. Biennial. Flowers dark rose purple. Mostly sun. SW facing slope. Many plants localized. 1841 Comment
  UCD21711  Cirsium vulgare Beth Lowe Corbin 1982-8-10 310 Placer Onion Creek campground. In disturbed soil along roadside. Coarse herb 3' high. Flowers purple. Full sun. South facing slope, 10% incline. Common. 1841 Comment
  CAS-BOT-BC228885  Cistanthe umbellata F. Almeda 1993-7-24 7279 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  SCFS1222  Clarkia rhomboidea E. Krimmel, F. Felix 2014-6-26 Placer NFAm. Heath Falls Trail, Land of the Lost Comment
  UCD21990  Clarkia rhomboidea Beth Lowe Corbin 1982-8-4 216 Placer 1/4 mile NW of Onion Creek campground. 1950 Comment
  UC192281  Claytonia lanceolata E. L. Greene Jul 1895 Placer Summit Station Comment
  CAS-BOT-BC229130  Claytonia megarhiza Wm. R. Hewlett 1959-8-1 s.n. Placer Lyon Peak 2651 Comment
  UCD21923  Claytonia rubra subsp. rubra Rex Palmer 1979-6-8 N 123 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22157  Claytonia rubra subsp. rubra Rex Palmer 1979-6-19 N 215 Placer Headwaters Basin Area of the North Fork of the American River. Comment
  UCD21865  Collinsia parviflora Rex Palmer 1979-6-20 N 344 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21864  Collinsia torreyi Beth Lowe Corbin 1982-8-6 267 Placer Along road 3/4 mile west of Onion Creek campground. 1981 Comment
  UCD21867  Collinsia torreyi Rex Palmer 1979-6-19 N 260 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21866  Collinsia torreyi var. wrightii Rex Palmer 1979-6-19 N 211 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21868  Collinsia torreyi var. wrightii Rex Palmer 1979-6-19 N 257 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21869  Collinsia torreyi var. wrightii Rex Palmer 1979-6-9 N 167 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD21870  Collinsia torreyi var. wrightii Rex Palmer 1979-6-19 N 265 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21871  Collinsia torreyi var. wrightii Rex Palmer 1979-6-19 N 211 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21872  Collinsia torreyi var. wrightii Rex Palmer 1979-6-21 N 370 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1100  Collomia grandiflora E. Krimmel 2013-6-13 Placer NFAm. Cedars full trail. Land of the Lost. Comment
  SEINET2445247  Collomia grandiflora Beth L. Corbin 1982-8-4 246 Placer 1 mile NE of Onion Creek campground.; 0 1951 Comment
  UCD21979  Collomia grandiflora Beth Lowe Corbin 1982-8-4 246 Placer 1 mile NE of Onion Creek campground. 1950 Comment
  UCD21980  Collomia tinctoria Beth Lowe Corbin 1982-8-12 334 Placer 1/8 mile NE of Onion Creek campground. 1844 Comment
  UCD22065  Corallorhiza maculata Beth Lowe Corbin 1982-8-10 294 Placer 3/4 mile WSW of Onion Creek Campground. SE facing slope, 10% incline. Mostly shade. Uncommon. In deep duff of white fir forest. Plant reddish purple. Flower upper petal yellowish, lower white with red spots. 2023 Comment
  CDA16042  Corallorhiza striata G. F. Hrusa, J. Glazner 2000-9-3 15671 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD22064  Corallorhiza striata Beth Lowe Corbin 1982-8-20 398 Placer 1 mile north of Onion Creek Campground. NW facing slope, 20% incline. Rare. Mostly shade. In deep conifer duff of red fir forest. Plant reddish purple dried, light with dark lines. 2103 Comment
  UCD21873  Cordylanthus tenuis Beth Lowe Corbin 1982-8-4 211 Placer 1/3 mile west of Onion Creek campground. 1889 Comment
  UCD21874  Cordylanthus tenuis subsp. tenuis Rex Palmer 1979-7-13 N 665 Placer Headwaters Basin Area of the North Fork of the American River. Comment
  SCFS1232  Cornus E. Krimmel 2013-1 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Streamside where trail meets water. Comment
  UCD22325  Cornus sericea subsp. occidentalis Rex Palmer 1979-5-26 N 35 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22323  Cornus sericea subsp. sericea Rex Palmer 1979-6-20 N 315 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22327  Cornus sericea subsp. sericea Beth Lowe Corbin 1982-8-6 262 Placer 1/8 mile W of Onion Creek Campground. 1844 Comment
  UCD21712  Crepis Rex Palmer 1979-6-9 N 130 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD21882  Crepis Rex Palmer 1979-6-9 N 130 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  CHSC68042  Crepis pleurocarpa James D. Jokerst 1986-7-13 2701 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  UCD22117  Cryptantha Rex Palmer 1979-6-6 N 125 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22119  Cryptantha Rex Palmer 1979-5-27 N 50 Placer Headwaters basin area of the North Fork of the American River 1889 Comment
  UC857053  Cryptantha ambigua unknown 1286 Placer Summit Station 2121 Comment
  CAS-BOT-BC218775  Cryptantha humilis John Thomas Howell 1943-7-26 18845 Placer Mt. Lincoln Comment
  UCD22124  Cryptantha simulans Rex Palmer 1979-6-21 N 381 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22120  Cryptantha torreyana Beth Lowe Corbin 1982-8-2 156 Placer Onion Creek Campground. South facing slope. Partial shade. In locally uncommon groups of about 25. In fine, sandy, granitic soil of mixed conifer forest. Annual herb, flowers white. 1841 Comment
  UCD69351  Cryptogramma acrostichoides S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 s.n. Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  SCFS1154  Cuscuta E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #2. Comment
  UCD22386  Cuscuta californica Beth Lowe Corbin 1982-8-17 358 Placer 2 2/3 miles WSW of The Cedars. NW facing slope, 15% incline. Full sun. Occasional. Rocky outcrop in montane chaparral. Stems pale orange, flowers white, anthers orange. 1938 Comment
  SCFS1192  Cymopterus terebinthinus E. Krimmel 2014-4-21 Placer NFAm. 200 yards south of Pt. Mariah warming hut Comment
  SCFS1195  Cymopterus terebinthinus E. Krimmel 2014-4-21 Placer Pt. Mariah Comment
  UCD21634  Cymopterus terebinthinus Rex Palmer 1979-6-20 N 348 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21635  Cymopterus terebinthinus Rex Palmer 1979-6-9 N 136 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD21636  Cymopterus terebinthinus Rex Palmer 1979-5-26 N 23 Placer Headwaters basin area of the North Fork of the American River 1950 Comment
  UCD126487  Cymopterus terebinthinus var. californicus Rex Palmer 1979-6-21 N 418 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21637  Cymopterus terebinthinus var. californicus Rex Palmer 1979-6-21 N 418 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21673  Cymopterus terebinthinus var. californicus Beth Lowe Corbin 1982-8-4 235 Placer 1 1/8 mile NNW of Onion Creek campground. In rocky, fine, sandy soil. Flowers yellowish. Plant ill smelling. Full sun. East facing slope, 20% incline. Common. 2194 Comment
  CAS-BOT-BC70579  Cystopteris fragilis A. A. Heller 1917-8-14 12931 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  SACT000889  Danthonia californica D. Meyer 1984-7-15 Placer Moist mountain meadow. 1909.0 Comment
  UCD22245  Danthonia californica Beth Lowe Corbin 1982-8-3 174 Placer Onion Creek Campground. SW facing slope. Sun. Uncommon. Open, dry meadow of mixed conifer forest in fine, sandy, granitic soil. Perennial, forming a loose clump. 1841 Comment
  SACT000892  Danthonia californica var. americana Josephine Van Ess 1974-8-10 Placer Collected on the path to the Castle Creek, Old Soda Springs Road. North of Highway 80. 2085.0 Comment
  UCD22244  Danthonia unispicata Beth Lowe Corbin 1982-8-4 222 Placer 1/4 mile NW of Onion Creek Campground. SW facing slope, 15% inclination. Uncommon, about 25 individuals. Full sun. Opening in montane chaparral, in rocky, fine, sandy soil. Perennial, forming small bunches. 1950 Comment
  CAS-BOT-BC141778  Dasiphora fruticosa F. Almeda 1993-7-25 7292 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass 1920 Comment
  UCD22271  Dasiphora fruticosa Rex Palmer 1979-6-20 N 351 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1228  Delphinium E. Krimmel 2014-6-26 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Comment
  CAS-BOT-BC8988  Delphinium depauperatum F. Almeda 1993-7-24 7259 Placer About 15 miles SE of Interstate Hwy. 80 at Soda Springs on trail to Upper Sheep Valley 2133 Comment
  CHSC67691  Delphinium depauperatum James D. Jokerst 1986-7-13 2738 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, above Ted Beedy's 'El Cap' on trail. Comment
  UCD22178  Delphinium depauperatum Beth Lowe Corbin 1982-8-4 229 Placer 1/3 mile NW of Onion Creek Campground. SW facing slope, 10% inclination. Uncommon. Partial sun. Opening in white fir forest on rocky, fine, sandy soil. Flowers deep blue, with white markings. 1981 Comment
  SCFS1167  Delphinium glaucum E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Drying creek bed at Chickering. Comment
  UCD22179  Delphinium glaucum Beth Lowe Corbin 1982-8-17 356 Placer 3 miles WSW of The Cedars. NW facing slope, 20% incline. Ocassional. Partial sun. In wet soil along stream in white fir forest. Herb 4-5 ft tall, flowers purple. 1920 Comment
  UCD22183  Delphinium glaucum Rex Palmer 1979-7-25 N 673 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC116089  Delphinium nuttallianum Betty J. jorgensen 1944-7-23 529 Placer Near Soda Springs Comment
  UCD22180  Delphinium nuttallianum Rex Palmer 1979-7-22 N 607 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22181  Delphinium nuttallianum Rex Palmer 1979-6-20 N 281 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22182  Delphinium nuttallianum Rex Palmer 1979-6-21 N 364 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22184  Delphinium nuttallianum Rex Palmer 1979-7-25 N 698 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22185  Delphinium nuttallianum Rex Palmer 1979-7-25 N 697 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22186  Delphinium nuttallianum Rex Palmer 1979-6-9 N 177 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22187  Delphinium nuttallianum Rex Palmer 1979-6-9 N 166 Placer Headwaters basin area of the North Fork of the American River Comment
  SACT000906  Deschampsia cespitosa D. Meyer 1984-7-15 Placer 1909.0 Comment
  UCD22247  Deschampsia danthonioides Beth Lowe Corbin 1982-8-4 220 Placer 1/4 mile NW of Onion Creek Campground. SW facing slope, 15% inclination. Locally abundant. Full sun. Opening in montane chaparral in rocky, fine, sandy, granitic soil. Annual. 1950 Comment
  SACT000932  Deschampsia elongata Michael Baad 1976-7-22 Placer Ascent of south-facing slope of Peak from trail to crest. Red fir forest and meadows. 2377.0 Comment
  SACT000937  Deschampsia elongata Michael Baad 1983-9-3 Placer From Sprite Inn to Western slope of Mount Judah near summit 2286.0 Comment
  SACT000946  Deschampsia elongata D. Meyer 1984-7-15 Placer Collected in opening from tree canopy. 1909.0 Comment
  SACT000947  Deschampsia elongata D. Meyer 1984-7-15 Placer Moist Mountain meadow. 1909.0 Comment
  UCD22246  Deschampsia elongata Beth Lowe Corbin 1982-8-5 257 Placer Onion Creek Campground. SW facing slope, 15% incline. Common. Mostly sun. Dry meadow, but more towards stream in mixed conifer forest, in fine, sandy soil. Bunchgrass, forming small, dense tufts. 1841 Comment
  UCD22366  Descurainia incana subsp. viscosa Rex Palmer 1979-7-12 N 619 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22387  Descurainia incisa subsp. incisa Rex Palmer 1979-7-12 N 619 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22166  Dicentra uniflora Rex Palmer 1979-6-21 N 359 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22159  Dodecatheon alpinum subsp. majus Rex Palmer 1979-7-11 N 534 Placer Headwaters basin area of the North Fork of the American River. Comment
  SCFS1204  Draperia systyla E. Krimmel 2014-6-26 Placer NFAm. Comment
  UCD22031  Draperia systyla Beth Lowe Corbin 1982-8-11 316 Placer 1 2/3 miles SW of Onion Creek campgound. Mostly shade. SE facing slope, 30% incline. Uncommon. Mostly shade. Low, spreading perennial. Flowers whitish. In rocky, fine, sandy soil. 1889 Comment
  UCD22270  Drymocallis glandulosa Beth Lowe Corbin 1982-8-3 187 Placer Onion Creek Campground. 1841 Comment
  UCD22274  Drymocallis glandulosa Rex Palmer 1979-6-20 N 334 Placer Headwaters basin area of the North Fork of the American River. Comment
  SCFS1107  Drymocallis lactea E. Krimmel 2013-6-2 Placer On cliffs beside NF American River, 1/2-mile below Soda Springs road Comment
  CAS-BOT-BC157899  Drymocallis lactea var. lactea F. Almeda 1993-7-25 7306 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass 1920 Comment
  UCD22216  Elymus elymoides Beth Lowe Corbin 1982-8-18 373 Placer 1 1/4 miles SW of The Cedars. NE facing slope, 10% incline. Common. Mostly sun. In rocky, fine, sandy granitic soil of open white fir forest. Perennial forming moderately large bunches. Awns purplish. 1813 Comment
  UCD22217  Elymus elymoides Rex Palmer 1979-7-26 N 849 Placer Headwaters basin area of the North Fork of the American River Comment
  SACT001117  Elymus glaucus Michael Baad 1976-7-21 Placer Lower southwest-facing slope. Northeast corner, southeast of Soda Springs. 2377.0 Comment
  UCD22248  Elymus glaucus Beth Lowe Corbin 1982-8-3 169 Placer Onion Creek Campground. S facing slope. Uncommon. Full sun. Open, dry meadow in mixed conifer forest in fine, sandy, granitic soil. Perennial, forming small, not extensive clumps. 1841 Comment
  UCD22249  Elymus glaucus Rex Palmer 1979-7-26 N 844 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22250  Elymus glaucus Rex Palmer 1979-7-12 N 615 Placer Headwaters basin area of the North Fork of the American River Comment
  SACT001148  Elymus sierrae Michael Baad 1976-7-21 Placer Ridge at the tree line west north west of Lyon Peak and north-facing slope at crest of Lyon Peak, cinders and basaltic boulders. 10 miles southeast of Soda Springs. 2377.0 Comment
  CHSC68068  Elymus trachycaulus subsp. subsecundus James D. Jokerst 1986-7-12 2687 Placer Trial from The Cedars, high Sierra Nevada SW of Donner Lake, on N side of river. Comment
  CAS-BOT-BC204400  Elymus trachycaulus subsp. trachycaulus L. S. Smith 1925-7-8 1662 Placer Tahoe National Forest. Cedars near American River 1798 Comment
  UCD22261  Elymus trachycaulus subsp. trachycaulus Beth Lowe Corbin 1982-8-3 172 Placer Onion Creek Campground. SW facing slope. Full sun to partial shade. Moderately abundant. Open, dry meadow, more abundant toward the creek. In fine, sandy, granitic soil. Perennial bunchgrass, forming smallish clumps. 1841 Comment
  UCD21991  Epilobium brachycarpum Beth Lowe Corbin 1982-8-3 203 Placer Onion Creek campground. 1841 Comment
  CAS-BOT-BC171701  Epilobium canum subsp. latifolium Margaret Williams 1961-9-30 s.n. Placer West of Donner Pass near Lincoln Peak Comment
  UCD21986  Epilobium canum subsp. latifolium Beth Lowe Corbin 1982-8-11 319 Placer 1 2/3 mile SW of Onion Creek campground. 1905 Comment
  UCD21996  Epilobium ciliatum subsp. ciliatum Beth Lowe Corbin 1982-8-5 249 Placer Onion Creek campground. 1841 Comment
  UCD22092  Epilobium ciliatum subsp. ciliatum Rex Palmer 1979-7-9 N 437 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22094  Epilobium ciliatum subsp. ciliatum Rex Palmer 1979-7-26 N 870 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21995  Epilobium glaberrimum Beth Lowe Corbin 1982-8-5 248 Placer Onion Creek campground. In wet soil along stream's edge. Flowers rose pink, petals bilobed. Full sun. SW facing slope, 15% incline. Occasional. 1841 Comment
  UCD21992  Epilobium hallianum Beth Lowe Corbin 1982-8-23 406 Placer 2 miles WSW of The Cedars. 1981 Comment
  UC108000  Epilobium obcordatum C. F. Sonne 1894-9-2 Placer high Mt. s Summit St. C.P.R.R.; Sierra Nevada Mountains 2590 Comment
  UCD21994  Epilobium obcordatum Beth Lowe Corbin 1982-8-4 243 Placer 1 1/2 miles north of Onion Creek campground. Flowers purple magenta. Stems purplish at base. Plant forming a mist over rocky, fine, sandy, granitic soil. Edge of loose talus slope, open White Fir forest. Mostly sun. East facing slope, 50% incline. Uncommon, 2 large mats present. 2255 Comment
  UCD22090  Epilobium obcordatum Rex Palmer 1979-7-25 N 678 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22091  Epilobium obcordatum Rex Palmer 1979-7-25 N 671 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR178681  Epilobium obcordatum Rex Palmer 1979-7-25 N- 671 Placer Sierra Nevada Mtns., Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden] 2134 Comment
  UCD22071  Equisetum arvense Rex Palmer 1979-6-8 N 120 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22072  Equisetum arvense Beth Lowe Corbin 1982-8-25 418 Placer Onion Creek Campground. South facing slope, 15 % incline. Abundant. Full sun. In wet, fine sandy soil along stream edge in mixed conifer forest. Perennial herb. 1841 Comment
  UCD22083  Equisetum laevigatum Beth Lowe Corbin 1982-8-13 349 Placer 1/8 mile SW of Onion Creek Campground, along edge of Onion Creek. 1813 Comment
  SCFS1225  Eremogone E. Krimmel 2013-6-2 Placer North Fork American River, top of Foresthill Road. Comment
  CAS-BOT-BC174097  Eremogone aculeata John Thomas Howell 1943-7-21 18675 Placer Mt. Lincoln Comment
  UCD22162  Eremogone kingii var. glabrescens Beth Lowe Corbin 1982-8-4 239 Placer 1 1/2 mile NNW of Onion Creek Camground. E facing slope, 40% inclination. Uncommon. Full sun. Subalpine talus slope. Plant forming loose mat. Flowers white. 2286 Comment
  UCD22165  Eremogone kingii var. glabrescens Rex Palmer 1979-6-9 N 158 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  UCD22167  Eremogone kingii var. glabrescens Rex Palmer 1979-6-19 N 270 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21708  Ericameria nauseosa Beth Lowe Corbin 1982-8-24 413 Placer 2 1/4 miles south of The Cedars. In rocky, fine sandy soil. Open subalpine talus slope on ridgetop in Red Fir forest. Rounded shrub 1 1/2' high. Flowers yellow. Foliage aromatic. Full sun. SW facing slope, 30% incline. Occasional. 2179 Comment
  CAS-BOT-BC294265  Ericameria nauseosa var. speciosa Henry M. Pollard 1936-7-1 s.n. Nevada Mt. Lincoln, Donner region Comment
  CAS-BOT-BC294277  Ericameria nauseosa var. speciosa M. E. Parsons 1912-8-25 s.n. Placer Crow Peak, near summit Comment
  POM57263  Ericameria suffruticosa C. F. Sonne 1894-9-2 13644 Placer High Mt. south of Summit Station 2439 Comment
  UC197389  Ericameria suffruticosa C. F. Sonne 1894-9-2 Placer <High Mts.?> near Summit Station 2438 Comment
  UCD21716  Erigeron Rex Palmer 1979-6-9 N 164 Placer Headwaters basin area of the North Fork of the American River. 2255 Comment
  UCD21886  Erigeron Rex Palmer 1979-6-9 N 164 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  CAS-BOT-BC293592  Erigeron barbellulatus John Thomas Howell 1943-7-21 18666 Placer Mt. Lincoln Comment
  RSA39963  Erigeron barbellulatus J. T. Howell 1943-7-21 18666 Placer Mt. Lincoln. Comment
  SCFS1196  Erigeron glacialis E. Krimmel 2014-6-26 Placer Soda Springs road, 1/4 of the way between the Onion Creek crossing and the Cedars. Comment
  UCD21715  Erigeron glacialis Rex Palmer 1979-6-20 N 353 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC300817  Erigeron glacialis var. glacialis F. Almeda 1993-7-24 7256 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  UCD21714  Erigeron glacialis var. glacialis Beth Lowe Corbin 1982-8-10 291 Placer 3/4 mile WSW of Onion Creek campground. In fine, sandy and organic soil. Small meadow in White Fir forest. Ray flowers pale purple, disc yellow. Partial sun. SE facing slope, 10% incline. Common. 2023 Comment
  CAS-BOT-BC295203  Erigeron inornatus A. A. Heller 1916-8-13 12895 Placer Summit Station 2133 Comment
  CAS-BOT-BC295204  Erigeron inornatus A. A. Heller 1916-8-13 12895 Placer Summit Station 2133 Comment
  UCD21704  Erigeron inornatus Beth Lowe Corbin 1982-8-9 279 Placer 1/3 mile SW of Onion Creek. In brushy opening of White Fir forest. Perennial herb. Disc flowers yellow. Mostly sun. South facing slope, 20% incline. Occasional. 1856 Comment
  UC202221  Erigeron inornatus var. inornatus A. A. Heller 1916-8-13 12895 Placer Summit Station 2133 Comment
  UCD69356  Erigeron miser S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. Old-growth red fir forests (Abies magnifica) near French Meadows. 2100 Comment
  CDA16034  Erigeron peregrinus G. F. Hrusa, J. Glazner 2000-9-3 15679 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD21887  Erigeron peregrinus Rex Palmer 1979-6-20 N 353 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21885  Erigeron peregrinus var. angustifolius Beth Lowe Corbin 1982-8-10 291 Placer 3/4 mile WSW of Onion Creek campground. In fine, sandy and organic soil. Small meadow in White Fir forest. Ray flowers pale purple, disc yellow. Partila sun. SE facing slope, 10% incline. Common. 2023 Comment
  UCD21713  Erigeron philadelphicus var. philadelphicus Beth Lowe Corbin 1982-8-13 344 Placer 3/4 mile west of The Cedars. In dryish meadow. Annual. Rays purple, disc yellow. Mostly sun. South facing slope, 15% incline. Frequent. 1676 Comment
  UCD22025  Eriodictyon lobbii Beth Lowe Corbin 1982-8-3 197 Placer Hill west of Onion Creek Campground. Locally abundant. Full sun, SW facing slope. In fine, sandy, granitic soil of disturbed slide area. Perennial herb, stems somewhat decumbent. Flowers dark purple. 1853 Comment
  SCFS1162  Eriogonum E. Krimmel, F. Felix 2013-7-26 Placer NFAm. Off Foresthill Road. Rocky overlook. Comment
  SCFS1237  Eriogonum E. Krimmel 2013-5-19 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook at Land of the Lost. Comment
  UCD21942  Eriogonum Beth Lowe Corbin 1982-8-4 219 Placer 1/4 mile NW of Onion Creek campground. In rocky, fine, sandy soil. Opening in montane chaparral. Perennial forming a thick mat. Flowers creme colored. Full sun. SW facing slope, 15% incline. Uncommon. 1950 Comment
  UCD22134  Eriogonum Rex Palmer 1979-6-21 N 406 Placer Headwaters basin area of the North Fork of the American River 2331 Comment
  SCFS1110  Eriogonum incanum E. Krimmel 2013-6-2 Placer Top of Foresthill road, near Am. River gorge overlook Comment
  UCD21934  Eriogonum incanum Rex Palmer 1979-6-9 N 141 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD22136  Eriogonum incanum Rex Palmer 1979-6-20 N 310 Placer Headwaters basin area of the North Fork of the American River 2331 Comment
  UCD22137  Eriogonum incanum Rex Palmer 1979-6-19 N 237 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC259349  Eriogonum lobbii A. A. Heller 1917-8-14 12923 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  CAS-BOT-BC259350  Eriogonum lobbii John Thomas Howell 1943-7-26 18844 Placer Mt. Lincoln Comment
  CAS-BOT-BC259352  Eriogonum lobbii A. A. Heller 1917-8-14 12923 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  UCD21939  Eriogonum lobbii Beth Lowe Corbin 1982-8-11 323 Placer 1 3/4 miles SW of Onion Creek campground. In rocky outcrop in montane chaparral. Flowers pinkish, yellowish below. Peduncles decumbent. Full sun. SE facing slope, 30% incline. Occasional. 1935 Comment
  UC849509  Eriogonum lobbii var. lobbii A. A. Heller 1917-8-14 12923 Placer s Summit Valley; Mt. Lincoln 2499 Comment
  SCFS1170  Eriogonum nudum E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Creekside at Chickering. Comment
  UCD21937  Eriogonum nudum Beth Lowe Corbin 1982-8-3 177 Placer Onion Creek campground. In fine, sandy, granitic soil. Somewhat disturbed area in dry, open meadow. Mostly sun. Moderately common. Southwest facing slope. 1841 Comment
  CAS-BOT-BC264805  Eriogonum nudum var. deductum unspecified No date on label. 12884 Placer Summit Station 2121 Comment
  CAS-BOT-BC264806  Eriogonum nudum var. deductum unspecified No date on label. 12884 Placer Summit Station 2121 Comment
  CAS-BOT-BC264807  Eriogonum nudum var. deductum J. F. Emmel 1969-7-18 190 Placer Ridge between Mt. Judah and Sugar Bowl near Donner Pass 2225 Comment
  UC849639  Eriogonum nudum var. deductum Ira W. Clokey 12884 Placer Summit Station 2121 Comment
  UCD22130  Eriogonum nudum var. deductum Rex Palmer 1979-7-25 N 689 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22132  Eriogonum nudum var. deductum Rex Palmer 1979-7-11 N 592 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21941  Eriogonum spergulinum Beth Lowe Corbin 1982-8-17 354 Placer 2 1/2 miles WSW of The Cedars. Along logging road in brushy, White Fir forest. Calyx white with brown midribs. Full sun. NW facing slope, 25% incline. Locally common. 1920 Comment
  UCD22138  Eriogonum spergulinum Rex Palmer 1979-7-26 N 834 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR179198  Eriogonum spergulinum Rex Palmer 1979-7-26 N- 834 Placer Sierra Nevada Mtns., Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden] 2134 Comment
  CAS-BOT-BC269933  Eriogonum spergulinum var. reddingianum A. A. Heller No date on label 12894 Placer Summit Station 2121 Comment
  CAS-BOT-BC269934  Eriogonum spergulinum var. reddingianum A. A. Heller No date on label 12894 Placer Summit Station 2121 Comment
  UC849786  Eriogonum spergulinum var. reddingianum none 12894 Placer Summit Station 2121 Comment
  UCD21943  Eriogonum umbellatum Beth Lowe Corbin 1982-8-4 240 Placer 1 1/2 miles NNW of Onion Creek campground. In rocky, fine, sandy soil. Talus slope. Flowers sulfur yellow with red lines on outside. Forming a loose mat at location. Full sun. East facing slope, 50% incline. Uncommon. 2286 Comment
  UCD22125  Eriogonum umbellatum var. covillei Rex Palmer 1979-6-21 N 405 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22127  Eriogonum umbellatum var. covillei Rex Palmer 1979-6-21 N 404 Placer Headwaters basin area of the North Fork of the American River Comment
  A364579  Eriogonum umbellatum var. nevadense J. T. Howell 1943-7-26 18842 Unknown Mt. Lincoln Comment
  CAS-BOT-BC265153  Eriogonum umbellatum var. nevadense Henry M. Pollard 1936-7-1 s.n. Placer Mt. Lincoln, Donner region Comment
  CAS-BOT-BC265154  Eriogonum umbellatum var. nevadense Henry M. Pollard 1936-7-1 s.n. Placer Mt. Lincoln, Donner region Comment
  CAS-BOT-BC265156  Eriogonum umbellatum var. nevadense A. Roberts 1898-8-1 s.n. Placer Summit Soda Springs, Donner Cr. Comment
  CAS-BOT-BC265158  Eriogonum umbellatum var. nevadense John Thomas Howell 1943-7-26 18842 Placer Mt. Lincoln Comment
  UCD21935  Eriogonum umbellatum var. nevadense Rex Palmer 1979-6-10 N 182 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21936  Eriogonum umbellatum var. nevadense Rex Palmer 1979-5-27 N 79 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22118  Eriogonum umbellatum var. nevadense Rex Palmer 1979-7-25 N 678 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22121  Eriogonum umbellatum var. nevadense Rex Palmer 1979-7-10 N 525 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22122  Eriogonum umbellatum var. nevadense Rex Palmer 1979-7-11 N 589 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22123  Eriogonum umbellatum var. nevadense Rex Palmer 1979-6-19 N 223 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD101502  Eriogonum umbellatum var. torreyanum Tamara Kan 1992-8-1 s.n. Placer on Mt. Disney, just inside boundary of Onion Creek Experimental Forest, at top of south east facing drainage. 2377 Comment
  UCD101506  Eriogonum umbellatum var. torreyanum Tamara Kan 1992-8-1 s.n. Placer on Mt. Disney, just inside boundary of Onion Creek Experimental Forest, at top of south-east facing drainage. 2377 Comment
  UC569819  Eriogonum ursinum B. Bolt 1934-7-16 121 Placer 1 1/4 mi se mouth of Serena Creek; Truckee Quadrangle 2042 Comment
  UC77785  Eriogonum ursinum C. F. Sonne 1894-9-2 Placer mts. s Summit Station; Sierra Nevada Mountains 2438 Comment
  UCD101330  Eriogonum ursinum Tamara Kan 1992-8-1 s.n. Placer on Mt. Disney, just inside boundary of Onion Creek Experimental Forest, at top of south east facing drainage. 2377 Comment
  UCD21938  Eriogonum wrightii var. subscaposum Beth Lowe Corbin 1982-8-9 282 Placer 1/2 mile SW of Onion Creek campground. Open, shale, rocky slope. Low shurb. Unopened flowers reddish pink. Full sun. South facing slope, 20% incline. Locally abundant. 1828 Comment
  UCD21940  Eriogonum wrightii var. subscaposum Beth Lowe Corbin 1982-8-24 411 Placer 2 miles south of The Cedars. In fine, sandy, rocky soil. Open talus slope of ridgetop in Red Fir forest. Calyx white with red midribs. Perennial forming moderate sized mats. Full sun. North facing slope, 20% incline. Ocassional. 2133 Comment
  UCD21717  Eriophyllum lanatum var. croceum Beth Lowe Corbin 1982-8-11 322 Placer 1 3/4 miles SW of Onion Creek campground. In rocky outcrop in montane chaparral. Ray and disc flowers yellow. Full sun. SE facing slope, 45% incline. Occasional. 1935 Comment
  UCD21884  Eriophyllum lanatum var. croceum Beth Lowe Corbin 1982-8-11 322 Placer 1 3/4 miles SW of Onion Creek campground. In rocky outcrop in montane chaparral. Ray and disc flowers yellow. Full sun. SE facing slope, 45% incline. Occasional. 1935 Comment
  CAS-BOT-BC308251  Eriophyllum lanatum var. integrifolium F. Almeda 1993-7-24 7284 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on th trail to Upper Sheep Valley, Sierra Nevada 2133 Comment
  CAS-BOT-BC308254  Eriophyllum lanatum var. integrifolium John Thomas Howell 1943-7-21 18668 Placer Mt. Lincoln Comment
  UCD22367  Erysimum capitatum Beth Lowe Corbin 1982-8-2 161 Placer Onion Creek Campground. S facing slope. Relatively common. Partial sun. In conifer duff over sandy, granitic soil in mixed conifer forest. Biennial herb, with bright yellow flowers and purplish stems. 1841 Comment
  UCD22369  Erysimum capitatum Rex Palmer 1979-5-27 N 53 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22371  Erysimum capitatum Rex Palmer 1979-7-12 N 603 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22373  Erysimum capitatum Rex Palmer 1979-6-20 N 277 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22375  Erysimum capitatum Rex Palmer 1979-7-12 N 617 Placer Headwaters basin area of the North Fork of the American River Comment
  RSA121677  Erysimum capitatum var. perenne N. H. French 1934-6-22 445 Placer 7/8 mile W. of Dulzura Lake. 2287 Comment
  CAS-BOT-BC55099  Erysimum perenne N. French 1934-6-22 445 Placer 7/8 mile west of Dulzura Lake. 2286 Comment
  UC1126628  Erysimum perenne N. French 1934-6-22 445 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle Comment
  CAS-BOT-BC153593  Erythranthe moniliformis F. Almeda 1993-7-25 7299 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass 1920 Comment
  CAS-BOT-BC153595  Erythranthe moniliformis F. Almeda 1993-7-24 7257 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  SCFS1155  Eucephalus breweri E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #4. Rocky overlook of falls on trail. Comment
  UCD132285  Eucephalus breweri D. Sanchez-Mata; S. Rivas, M. Barbour, P. Rodriguez 1997-9-3 s.n. Placer Soda Springs. Soda Springs Road. Tahoe National Forest. Near French Meadows. 2100 Comment
  UCD21706  Eucephalus breweri Rex Palmer Date Unknown N 891 Placer Placer County Comment
  UCD21707  Eucephalus breweri Rex Palmer 1979-7-25 N 685 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21482  Euphorbia serpillifolia Beth Lowe Corbin 1982-8-19 393 Placer One mile SSW of the Cedars. 1813 Comment
  UCD21697  Eurybia integrifolia Beth Lowe Corbin 1982-8-23 405 Placer 2 miles WSW of The Cedars. In fine, sandy, rocky soil. Open, logged White Fir forest. Rays purple, disc yellow. Mostly sun. North facing slope, 40% incline. Occasional. 1981 Comment
  SCFS1234  Fabaceae E. Krimmel 2013-1 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Streamside where trail meets main river. Comment
  CAS-BOT-BC282565  Festuca viridula A. A. Heller 1917-8-14 12926 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  CAS-BOT-BC282566  Festuca viridula A. A. Heller 1917-8-14 12926 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  GH341994  Festuca viridula A. A. Heller 1917-8-14 12926 Unknown Mt. Lincoln south of Summit valley 2499 Comment
  SACT001207  Festuca viridula Michael Baad 1983-9-3 Placer From Sprite Inn to western slope of Mountain Judah near summit. 2286.0 Comment
  UC247369  Festuca viridula A. S. Hitchcock 1913-7-15 485 Nevada vicinity Truckee (near summit of Mount Lincoln); Mount Lincoln Comment
  UC818180  Festuca viridula A. A. Heller 1917-8-14 12926 Placer s of Summit Valley; Mt. Lincoln 2499 Comment
  UCD66514  Festuca viridula A. A. Heller 1917-8-14 12926 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  UCD66515  Festuca viridula A. A. Heller 1917-8-14 12926 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  UCD23224  Fritillaria atropurpurea Rex Palmer 1979-6-20 N 324 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD23225  Fritillaria atropurpurea Rex Palmer 1979-6-9 N 132 Placer Headwaters basin area of the North Fork of the American River. Mt. Lincoln. Comment
  SCFS11529118  Galium F. Felix, E. Krimmel 2012-7-27 Placer NFAm. Stop #1, Swimming Hole Trail Comment
  UCD22287  Galium Rex Palmer 1979-5-27 N 49 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22290  Galium aparine Rex Palmer 1979-7-12 N 630 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22291  Galium aparine Rex Palmer 1979-6-21 N 378 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22288  Galium bifolium Rex Palmer 1979-6-9 N 171 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22289  Galium bifolium Rex Palmer 1979-6-20 N 343 Placer Headwaters basin area of the North Fork of the American River. Comment
  GH385995  Galium grayanum J. T. Howell 1943-7-26 18841 Unknown Mt. Lincoln Comment
  UCD22292  Galium grayanum Beth Lowe Corbin 1982-8-12 333 Placer 1/8 mile NE of Onion Creek Campground. 1844 Comment
  POM303632  Galium grayanum var. grayanum J. T. Howell 1943-7-26 18840 Placer Mt. Lincoln. Comment
  RSA39976  Galium grayanum var. grayanum J. T. Howell 1943-7-26 18840 Placer Mt. Lincoln. Comment
  UC710556  Galium grayanum var. grayanum John Thomas Howell 1943-7-26 18840 Placer Mt. Lincoln Comment
  UCD22293  Galium trifidum subsp. subbiflorum Beth Lowe Corbin 1982-8-9 284 Placer 1/2 mile SW of Onion Creek Campground. 1798 Comment
  UCD22294  Galium triflorum Beth Lowe Corbin 1982-8-3 201 Placer Hill west of Onion Creek Campground. SW facing slope. Partial sun. Uncommon. In deep conifer duff over fine, sandy, granitic soil of white fir forest. Perennial from underground rootstock. Stems weak, decumbent. 1853 Comment
  SCFS1151  Gayophytum E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #4. Comment
  UCD21987  Gayophytum Rex Palmer 1979-5-27 N 46 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21989  Gayophytum Beth Lowe Corbin 1982-8-2 158 Placer Onion Creek campground. In fine, sandy, granitic soil. Annual herb; Flowers whitish to pink. Open spot between trees. Partial shade. South facing slope. Locally abundant. 1841 Comment
  UCD22097  Gayophytum Rex Palmer 1979-6-20 N 332 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22099  Gayophytum diffusum Rex Palmer 1979-7-25 N 681 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22101  Gayophytum diffusum Rex Palmer 1979-7-11 N 588 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR179199  Gayophytum diffusum Rex Palmer 1979-7-25 N- 681 Placer Sierra Nevada Mtns., Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden] 2134 Comment
  UCD22095  Gayophytum diffusum subsp. parviflorum Rex Palmer 1979-6-19 N 235 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21988  Gayophytum humile Rex Palmer 1979-6-8 N 126 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22098  Gayophytum humile Rex Palmer 1979-6-21 N 384 Placer Headwaters basin area of the North Fork of the American River Comment
  GH384969  Gentiana calycosa A. A. Heller 1917-8-14 12932 Unknown Mt. Lincoln south of Summit valley 2499 Comment
  UC878353  Gentiana calycosa A. A. Heller 1917-8-14 12932 Placer s Summit valley (steep slope); Mt. Lincoln 2499 Comment
  UCD22264  Geum triflorum Rex Palmer 1979-6-20 N 354 Placer Headwaters basin area of the North Fork of the American River. Comment
  CDA16031  Glyceria elata G. F. Hrusa, J. Glazner 2000-9-3 15682 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. Abies concolor, A. magnifica, Pinus monticola, P. contorta forest with dense herbaceous understory. Wet site above upper spring pond. Perennial. 2164 Comment
  SACT001252  Glyceria elata Michael Baad 1976-7-21 Placer Lower south west-facing slopes of Lyon Peak, southeast of Soda Springs. 2377.0 Comment
  SACT001255  Glyceria elata D. Meyer 1984-7-15 Placer 1909.0 Comment
  UCD22251  Glyceria elata Beth Lowe Corbin 1982-8-19 390 Placer 1 mile SSW of The Cedars. NW facing slope, 20% incline. Common. Mostly sun. Meadow in logged white fir forest. Perennial, culms 1 m tall. 1813 Comment
  UCD22252  Glyceria striata Rex Palmer 1979-7-26 N 850 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21770  Gnaphalium palustre Beth Lowe Corbin 1982-8-3 185 Placer Onion Creek campground. In fine, sandy, granitic soil, in a somewhat disturbed area in open meadow. Annual. Phyllaries whitish. Full sun. Southwest facing slope. Common. 1841 Comment
  UCD21883  Gnaphalium palustre Beth Lowe Corbin 1982-8-3 185 Placer Onion Creek campground. In fine, sandy, granitic soil, in a somewhat disturbed area in open meadow. Annual. Phyllaries whitish. Full sun. Southwest facing slope. Common. 1841 Comment
  UCD22066  Goodyera oblongifolia Beth Lowe Corbin 1982-8-20 400 Placer 1/2 mile west of Onion Creek Campground. 1950 Comment
  UCD22126  Hackelia Rex Palmer 1979-6-21 N 419 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22128  Hackelia Rex Palmer 1979-6-21 N 366 Placer Headwaters basin area of the North Fork of the American River. Comment
  UC881756  Hackelia micrantha A. A. Heller 1917-8-14 12936 Placer s of Summit Valley; Mount Lincoln 2438 Comment
  UCD22129  Hackelia micrantha Rex Palmer 1979-6-20 N 282 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22131  Hackelia micrantha Rex Palmer 1979-6-10 N 518 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22135  Hackelia micrantha Rex Palmer 1979-7-25 N 808 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22139  Hackelia micrantha Rex Palmer 1979-7-25 N 809 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22140  Hackelia micrantha Rex Palmer 1979-7-12 N 656 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1202  Hackelia nervosa E. Krimmel 2014-4-21 Placer 200 yards south of Pt. Mariah warming hut Comment
  UC881561  Hackelia nervosa A. A. Heller 1917-8-14 12935 Placer s of Summit Valley; Mount Lincoln 2438 Comment
  UCD22133  Hackelia velutina Rex Palmer 1979-7-25 N 807 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22142  Hackelia velutina Beth Lowe Corbin 1982-8-4 226 Placer 1/4 mile NW of Onion Creek Campground. 1950 Comment
  SCFS1002  Helianthella californica E. Krimmel 2014-6-26 Placer Ridge top. Top of switchbacks on Soda Spring road Comment
  UCD21773  Helianthella californica Rex Palmer 1979-6-9 N 161 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  CAS-BOT-BC314784  Helianthella californica var. nevadensis F. Almeda 1993-7-24 7276 Placer About 15 miles SE of Interstea Hwy. #80 at Soda Springs on the trail to Upper Sheep Valley, Sierra Nevada 2133 Comment
  UCD21772  Helianthella californica var. nevadensis Beth Lowe Corbin 1982-8-4 212 Placer 1/4 mile west of Onion Creek campground. In fine, sandy soil of montane chaparral. Ray and disc flowers deep yellow. Full sun. SW facing slope, 15% incline. Locally abundant. 1889 Comment
  UCD21774  Helianthella californica var. nevadensis Rex Palmer 1979-7-11 N 586 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1189  Hemizonella minima E. Krimmel 2014-4-21 Placer NFAm. Farthest rocky outcrop on Point Mariah Comment
  UCD21780  Hemizonella minima Rex Palmer 1979-6-19 N 216 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21781  Hemizonella minima Rex Plamer 1979-6-8 N 124 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21703  Heterotheca villosa Beth Lowe Corbin 1982-8-13 346 Placer 3/4 mile west of The Cedars, in meadow. Ray and disc flowers yellow. Mostly sun. South facing slope, 15% incline. Occasional. 1676 Comment
  UCD22320  Heuchera micrantha Beth Lowe Corbin 1982-8-13 340 Placer 1 mile west of The Cedars. On rock face along Cedar Creek. Calyx pink, petals white, linear. Partial sun. West facing slope, 20% incline. Locally common. 1645 Comment
  CAS-BOT-BC424341  Heuchera rubescens M. E. Jones 1881-7-25 2510 Nevada Soda Springs 2133 Comment
  CAS-BOT-BC424342  Heuchera rubescens Marcus E. A M Jones 1881-7-25 2510 Nevada Soda Springs 2133 Comment
  UCD22321  Heuchera rubescens Rex Palmer 1979-6-19 N 323 Placer Headwaters basin area of the North Fork of the American River Comment
  CDA16045  Hieracium albiflorum G. F. Hrusa, J. Glazner 2000-9-3 15667 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  SEINET11259299 Image available Hieracium albiflorum M. Koski 2009-10-8 NV 030 -297 Placer Near Onion Creek 2005 Comment
  UCD132315  Hieracium albiflorum Rex Palmer 1979-1 N 890 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD132316  Hieracium albiflorum Rex Palmer 1979-1 N 890 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD132317  Hieracium albiflorum Rex Palmer 1979-1 N 890 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21775  Hieracium albiflorum Beth Lowe Corbin 1982-8-3 198 Placer Hill west of Onion Creek campground. In fine, sandy, granitic soil, in disturbed slide area. Taprooted perennial. Flowers white. Milky sap. Full sun. SW facing slope, 30% incline. Several plants localized. 1853 Comment
  UCD21776  Hieracium albiflorum Rex Palmer 1979-1 N 890 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21777  Hieracium albiflorum Rex Palmer 1979-7-25 N 691 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS11529145  Holodiscus discolor E. Krimmel, F. Felix 2013-6-2 Placer NFAm top of Foresthill Road, growing in rocks Comment
  UCD22265  Holodiscus discolor Beth Lowe Corbin 1982-8-26 424 Placer South side of Crow's Nest. S facing slope, 30% incline. Partial sun. Occasional. In rocky outcrop above red and white fir forest. Shrub 2 1/2 ft tall. Flowers creme white. 2346 Comment
  UCD22266  Holodiscus discolor var. microphyllus Beth Lowe Corbin 1982-8-10 298 Placer 1 1/4 miles WNW of Onion Creek Campground. SE facing slope, 30% incline. Full sun. Uncommon. In granitic slope of montane chaparral. Shrub 2 ft tall. Old bark greyish, flaking. Flowers creme white. 1981 Comment
  UCD22267  Holodiscus discolor var. microphyllus Rex Palmer 1979-6-9 N 144 Placer Headwaters basin area of the North Fork of the American River. 2255 Comment
  SACT001305  Hordeum brachyantherum D. Meyer 1984-7-15 Placer 1909.0 Comment
  SACT001308  Hordeum brachyantherum Michael Baad 1976-7-21 Placer Lower southwest-facing slopes of peak. Southeast Soda Springs. 2377.0 Comment
  SACT001315  Hordeum brachyantherum Michael Baad 1976-7-21 Placer lower southwest-facing slope. 10 miles southeast of Soda Springs. 2377.0 Comment
  UCD22253  Hordeum brachyantherum Beth Lowe Corbin 1982-8-3 171 Placer Onion Creek Campground. S facing slope. Full sun to partial shade. Moderately abundant. Dry, open meadow of mixed conifer forest in fine, sandy, granitic soil. More abundant toward creek. Perennial bunchgrass, forming moderately large clumps. Inflorescence purplish. 1841 Comment
  UCD22254  Hordeum brachyantherum subsp. californicum Rex Palmer 1979-7-12 N 639 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22255  Hordeum brachyantherum subsp. californicum Rex Palmer 1979-7-9 N 445 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22268  Horkelia fusca var. parviflora Beth Lowe Corbin 1982-8-11 328 Placer 1 1/2 miles WNW of Onion Creek Campground. 1935 Comment
  UCD22269  Horkelia fusca var. parviflora Rex Palmer 1979-7-10 N 524 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22017  Hosackia crassifolia Beth Lowe Corbin 1982-8-6 266 Placer On road 3/5 mile SW of Onion Creek campground. In rocky, fine, sandy soil along roadside. Herb 2 1/2' high. Flowers dark reddish purple with whitish edges. Mostly sun. SE facing slope, 20% incline. Common. 1920 Comment
  UCD106156  Hosackia oblongifolia R. Tofsrud 1951-7-1 s.n. Placer ca. 5 mi. below Soda Springs, Hwy. 40. Comment
  UCD106157  Hosackia oblongifolia R. Tofsrud 1951-7-1 s.n. Placer ca. 5 mi. below Soda Springs, Hwy. 40. Comment
  UCD106158  Hosackia oblongifolia R. Tofsrud 1951-7-1 s.n. Placer ca. 5 mi. below Soda Springs, Hwy. 40. Comment
  UCD22014  Hosackia oblongifolia Beth Lowe Corbin 1982-8-11 315 Placer 1 2/3 mile SW of Onion Creek campground. Along moist bank of drainageway, in montane chaparral. Herb about 18' high. Flowers yellow with red lines, wings white. Mostly shade. South facing slope, 20% incline. Common. 1889 Comment
  UCD22027  Hydrophyllum capitatum var. alpinum Rex Palmer 1979-6-20 N 276 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22028  Hydrophyllum capitatum var. alpinum Rex Palmer 1979-6-9 N 169 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22030  Hydrophyllum capitatum var. alpinum Rex Palmer 1979-6-21 N 423 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22033  Hypericum anagalloides Beth Lowe Corbin 1982-8-19 378 Placer 1 1/2 miles south of The Cedars. NE facing slope, 10% incline. Common, mostly sun. Flowers deep yellow. In moist, very fine, sandy soil of small meadow in white fir forest. 1859 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
  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
  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
  UC1123682  Ipomopsis aggregata N. French 1934-6-22 451 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle 2286 Comment
  UCD21976  Ipomopsis aggregata Rex Palmer 1979-7-25 N 699 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21977  Ipomopsis aggregata Beth Lowe Corbin 1982-8-4 225 Placer 1/4 mile NW of Onion Creek campground. In rocky, fine, sandy soil in montane chaparral. Perennial. Flowers bright scarlett. Partial sun. SW facing slope, 15% incline. Uncommon. 1950 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
  UCD21853  Juncus chlorocephalus Beth Lowe Corbin 1982-8-19 385 Placer 2 miles SSE of The Cedars. 2011 Comment
  UCR179422  Juncus chlorocephalus E. Lowe Corbin 1982-8-19 385 Placer Northern Sierra Nevada Mountains, Headwaters Basin Region of the North Fork of the American River 2 mi SSE of The Cedars [NW of Squaw Valley, south of Norden] 2012 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
  CHSC68067  Juncus confusus James D. Jokerst 1986-7-13 2698 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  CHSC68065  Juncus ensifolius James D. Jokerst 1986-7-12 2694 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  CHSC67713  Juncus mertensianus James D. Jokerst 1986-7-13 2720 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, in Sheet Valley. Basin. 2133 Comment
  CHSC68066  Juncus nevadensis James D. Jokerst 1986-7-12 2695 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  UCD21854  Juncus orthophyllus Beth Lowe Corbin 1982-8-11 314 Placer 1 2/3 mile SW of Onion Creek campground. 1889 Comment
  UCR179425  Juncus orthophyllus E. Lowe Corbin 1982-8-11 314 Placer Northern Sierra Nevada Mountains, North Fork of the American River, 1.6 mi SW of Onon Creek Campground 1890 Comment
  UCD21847  Juncus parryi Rex Palmer 1979-5-27 N 83 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21849  Juncus parryi Rex Palmer 1979-7-11 N 579 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21850  Juncus parryi Rex Palmer 1979-7-11 N 561 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21851  Juncus parryi Rex Palmer 1979-6-19 N 225 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21852  Juncus parryi Rex Palmer 1979-6-19 N 258 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCR179423  Juncus parryi Rex Palmer 1979-5-27 N 83 Placer Northern Sierra Nevada Mountains, Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden], granites at entrance to Chickering property 1768 Comment
  UCD21848  Juncus tenuis Rex Palmer 1979-7-9 N 441 Placer Headwaters basin area of the North Fork of the American River Comment
  NY21827  Juniperus californica M. E. Jones 1882-1 5623 Placer Soda Springs Comment
  JEPS102613 Image available Juniperus grandis Lowell Ahart 2001-10-10 9335 Placer West of Soda Springs Road, about one mile south of Ice Lakes, about 3 miles south of Soda Springs and Highway 80. 2011 Comment
  UCD22093  Juniperus occidentalis Beth Lowe Corbin 1982-8-8 283 Placer 1/2 mile SW of Onion Creek Campground. South facing slope, 20% incline. 1798 Comment
  CHSC81742  Juniperus occidentalis var. occidentalis Lowell Ahart 2001-10-10 9335 Placer West of Soda Springs Road, about one mile south of Ice Lakes, about 3 miles south of Soda Springs and Highway 80. 2011 Comment
Read comments
Jan 4 2007
  UCD21479  Kalmia polifolia Rex Palmer 1979-7-11 N 550 Placer Headwaters basin area of the North Fork of the American River. Comment
  SCFS5071  Keckiella breviflora E. Krimmel, Faerthen Felix 2014-6-26 Placer North Fork American River Headwaters Basin, NFAm. Heath Falls trail. Comment
  SCFS5071&SCFS5072  Keckiella breviflora E. Krimmel 2014-6-26 Placer NFAm. Heath Falls Trail. Rocky, sunny slope Comment
  SCFS5072  Keckiella breviflora E. Krimmel, Faerthen Felix 2014-6-26 Placer North Fork American River, Headwaters Basin Comment
  SCFS998  Keckiella breviflora E. Krimmel 2014-7-5 Placer North Fork American River. Below Soda Springs Rd, on trail 1/4-mile above Heath Falls Overlook. Comment
  SCFS1152  Keckiella lemmonii E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #4. Comment
  SCFS997  Keckiella lemmonii E. Krimmel 2014-7-15 Placer North Fork American River. Below Soda Springs Rd, on trail 1/4-mile above Heath Falls Overlook. Comment
  UCD21904  Keckiella lemmonii Beth Lowe Corbin 1982-8-4 213 Placer 1/4 mile west of Onion Creek campground. 1889 Comment
  UCD22295  Kelloggia galioides Rex Palmer 1979-7-26 N 893 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22296  Kelloggia galioides Rex Palmer 1979-7-26 N 812 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22297  Kelloggia galioides Rex Palmer 1979-7-12 N 633 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22298  Kelloggia galioides Rex Palmer 1979-7-11 N 578 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22299  Kelloggia galioides Beth Lowe Corbin 1982-8-2 153 Placer Onion Creek campground. In fine, sandy, granitic soil. Perennial herb with slender rhizomes; flowers white. Mostly shade. South facing slope. Locally clumped, but uncommon. 1841 Comment
  UCD21778  Lagophylla ramosissima Beth Lowe Corbin 1982-8-3 167 Placer Onion Creek campground. 1841 Comment
  UCD22377  Lepidium ramosissimum Beth Lowe Corbin 1982-8-3 168 Placer Onion Creek Campground. S facing slope. Moderately abundant. Full sun. In fine, sandy, granitic soil of open, dry meadow in mixed conifer forest. Annual. Sepal margins white. 1841 Comment
  UCD22379  Lepidium virginicum Rex Palmer 1979-6-8 N 121 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21973  Leptosiphon ciliatus Beth Lowe Corbin 1982-8-4 217 Placer 1/4 mile NW of Onion Creek campground. In fine, sandy soil. Opening in montane chaparral. Flowers light pink with white and yellow throat. Full sun. SW facing slope, 15% incline. Locally abundant. 1950 Comment
  UCD22109  Leptosiphon ciliatus Rex Palmer 1979-6-21 N 389 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22110  Leptosiphon ciliatus Rex Palmer 1979-7-12 N 622 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC56395  Leucothoe davisiae F. Almeda 1993-7-24 7271 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2133 Comment
  UCD21480  Leucothoe davisiae Beth Lowe Corbin 1982-8-24 416 Placer One and 3/4 miles SW of the Cedars. 1950 Comment
  SCFS1197  Lewisia E. Krimmel 2014-4-21 Placer NFAm. Comment
  POM164114  Lewisia nevadensis C. F. Sonne 1897-05 4124 Placer Summit Station Comment
  UCD22148  Lewisia nevadensis Rex Palmer 1979-6-20 N 331 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21924  Lewisia triphylla Rex Palmer 1979-6-9 N 172 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21925  Lewisia triphylla Beth Lowe Corbin 1982-8-4 230 Placer 1/2 mile NNW of Onion Creek campground. In damp meadow in White Fir forest. Small, fleshy herb, with white flowers. Mostly shade. SW facing slope, 10% incline. Locally abundant. 2072 Comment
  UCD22147  Lewisia triphylla Rex Palmer 1979-6-19 N 230 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22149  Lewisia triphylla Rex Palmer 1979-5-27 N 78 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22152  Lewisia triphylla Rex Palmer 1979-6-19 N 262 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22155  Lewisia triphylla Rex Palmer 1979-6-19 N 214 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC436045  Ligusticum grayi A. A. Heller 1917-8-14 12933 Placer Mt. Lincoln south of Summit valley 2499 Comment
  CAS-BOT-BC436047  Ligusticum grayi A. A. Heller 1917-8-14 12933 Placer Mt. Lincoln south of Summit valley 2499 Comment
  UC875078  Ligusticum grayi A. A. Heller 1917-8-14 12933 Placer s. of Summit valley Mt. Lincoln 2499 Comment
  UCD21641  Ligusticum grayi Rex Palmer 1979-7-26 N 894 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21642  Ligusticum grayi Rex Palmer 1979-7-25 N 686 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22052  Lilium parvum Beth Lowe Corbin 1982-8-16 351 Placer 1/2 mile NW of Onion Creek Campground. 2011 Comment
  UCD22053  Lilium washingtonianum Beth Lowe Corbin 1982-8-10 306 Placer 1 3/4 miles NW of Onion Creek Campground. 2103 Comment
  UCD21974  Linanthus pungens Beth Lowe Corbin 1982-8-4 234 Placer 1 1/8 miles NNW of Onion Creek campground. 2194 Comment
  UCD21975  Linanthus pungens Rex Palmer 1979-6-19 N 242 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1109  Linum lewisii Unknown 2013-6-2 Placer Cedar's meadow, below Soda Springs road Comment
  SCFS5094  Lithophragma glabrum F. Felix, Erica Krimmel 2013-5-19 18 Placer North Fork American River, 0.3 mile east Heath Falls overlook, on trail Comment
  UCD22322  Lithophragma glabrum Rex Palmer 1979-6-20 N 323 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22324  Lithophragma glabrum Rex Palmer 1979-7-12 N 621 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22326  Lithophragma glabrum Rex Palmer 1979-5-27 N 74 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22328  Lithophragma glabrum Rex Palmer 1979-6-9 N 170 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22329  Lithophragma parviflorum Rex Palmer 1979-6-19 N 217 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22256  Lolium perenne Rex Palmer 1979-7-26 N 831 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22156  Lonicera conjugialis Beth Lowe Corbin 1982-8-10 303 Placer 1 1/2 miles WNW of Onion Creek Campground. 1996 Comment
  UCR198047  Lotus purshianus Beth Lowe Corbin 1982-8-9 273 Placer Headwaters Basin Area of the North Fork of the American River. 1/4 mi southwest of Onion Creek Campground Comment
  UCD22080  Lupinus albicaulis Rex Palmer 1979-7-26 N 836 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22012  Lupinus andersonii Beth Lowe Corbin 1982-8-4 228 Placer 1/3 mile NW of Onion Creek campground. 1981 Comment
  UCD22019  Lupinus apertus Rex Palmer 1979-6-9 N 159 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  SCFS1174  Lupinus arbustus E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Drying creek bed at Chickering. Comment
  UCD22081  Lupinus argenteus var. heteranthus Rex Palmer 1979-7-12 N 652 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22082  Lupinus argenteus var. heteranthus Rex Palmer 1979-6-20 N 318 Placer Headwaters basin area of the North Fork of the American River. Comment
  CAS-BOT-BC208844  Lupinus argenteus var. meionanthus John Thomas Howell 1943-7-21 18674 Placer Mt. Lincoln Comment
  RSA0060734  Lupinus fulcratus Daisie Huang 2006-8-12 06081201 Nevada Town of Soda Springs, near the end of the road to Ice Lakes. 2106 Comment
  UCR274617  Lupinus fulcratus Daisie Huang 2006-8-12 60812- 01 Nevada Sierra Nevada Mtns., Town of Soda Springs, near the end of the road to Ice Lakes 2107 Comment
  SEINET3151067  Lupinus laxiflorus var. silvicola A. A. Heller 1909-7-16 9857 Placer Summit 2134 Comment
  RSA0077080  Lupinus lepidus var. sellulus Daisie Huang 2006-8-12 06081202 Nevada Town of Soda Springs, near the end of the road to Serene Lakes. 2108 Comment
  UCD22084  Lupinus polyphyllus Rex Palmer 1979-7-11 N 577 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22085  Lupinus polyphyllus Rex Palmer 1979-7-26 N 835 Placer Headwaters basin area of the North Fork of the American River. Comment
  CHSC67716  Luzula comosa var. laxa James D. Jokerst 1986-7-13 2721 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, in Sheet Valley. 2133 Comment
  CHSC67717  Luzula divaricata James D. Jokerst 1986-7-13 2724 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, in Sheet Valley. 2133 Comment
  UC842058  Luzula divaricata A. A. Heller 1917-8-14 12930 Placer near the crest Mount Lincoln s Summit Valley; Mount Lincoln s of Summit Valley 2499 Comment
  UCD142143  Luzula divaricata A. A. Heller 1917-8-14 12930 Placer Mt. Lincoln south of Summit valley. 2499 Comment
  SCFS1150  Madia E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #4. Comment
  UCD21779  Madia elegans Beth Lowe Corbin 1982-8-13 341 Placer 1 mile west of The Cedars. Meadowy slope. Ray and disc flowers yellow, anthers black. Partial sun. West facing slope, 20% incline. Locally abundant. 1645 Comment
  SEINET11601369 Image available Madia glomerata C. Rivas, M. Koski 2009-8-24 NV 030 -277 Placer Onion Creek, approx 4 miles after end of pavement on Soda Springs Road Comment
  CHSC85745  Maianthemum racemosum G. F. Hrusa; J. Glazner 2000-9-3 15663 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  SCFS11529137  Maianthemum racemosum E. Krimmel, F. Felix 2012-9-13 Placer NFAm, downstream from Cedars. On streambank. Comment
  UCD22055  Maianthemum racemosum Rex Palmer 1979-6-8 N 122 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22056  Maianthemum racemosum Beth Lowe Corbin 1982-8-6 260 Placer 1/8 mile W of Onion Creek Campground. 1844 Comment
  UCD22057  Maianthemum racemosum Rex Palmer 1979-6-20 N 279 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22058  Maianthemum racemosum Rex Palmer 1979-5-27 N 68 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22054  Maianthemum stellatum Rex Palmer 1979-6-20 N 317 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22011  Medicago lupulina Beth Lowe Corbin 1982-8-13 347 Placer 1/2 mile west of The Cedars. In damp, fine, sandy, soil in meadow. Flowers yellow. Mostly sun. West facing slope, 10% incline. Common. 1722 Comment
  UCR198048  Medicago lupulina Beth Lowe Corbin 1982-8-13 347 Placer Headwaters Basin Area of the North Fork of the American River. 1/2 mi west of The Cedars 1723 Comment
  UCD22010  Medicago sativa Beth Lowe Corbin 1982-8-5 252 Placer Onion Creek campground. In dry, disturbed ground between stream and road. Tall, diffuse perennial herb, 4' high. Flowers dark purple. Full sun. SW facing slope, 5% incline. Uncommon. 1841 Comment
  CAS-BOT-BC271156  Melica L. S. Smith 1926-6-18 52232 Placer East of Ice Lakes, Tahoe National Forest 2194 Comment
  CHSC68071  Melica aristata James D. Jokerst 1986-7-12 2685 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, on N side of river. Comment
  CHSC67861  Melica bulbosa var. inflata James D. Jokerst 1986-7-13 2742 A Placer Trail from The Cedars, high Sierra Nevada NW of Donner Lake, above Ted Beedy's 'El Cap' on trail traversing slope. Comment
  SACT001530  Melica stricta Michael Baad 1983-9-3 Placer From west slope to saddle between Mt Judah and Mt Lincoln. 2529.0 Comment
  UCD22224  Melica stricta Beth Lowe Corbin 1982-8-4 244 Placer 1 1/4 mile N of Onion Creek Campground. E facing slope, 50% inclination. Occasional. Full sun. In rocky, fine, sandy, granitic soil on open talus slope in white fir forest. Bunchgrass. Glumes and base of culms purplish. 2225 Comment
  CHSC68074  Melica subulata James D. Jokerst 1986-7-12 2691 Placer Trail from The Cedars, high Sierra Nevada NW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  GH424392  Mentzelia D. Griffiths 12885 Unknown Summit Station 2121 Comment
  UC872397  Mentzelia dispersa unknown 12885 Placer Upper limit of the yellow pine belt (P. Jeffreyi) Summit Station 2121 Comment
  CAS-BOT-BC428526  Micranthes aprica Henry M. Pollard 1936-7-1 s.n. Nevada Mt. Lincoln, Donner region Comment
  UCD22376  Micranthes aprica Rex Palmer 1979-5-27 N 75 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22378  Micranthes aprica Rex Palmer 1979-6-19 N 243 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC428677  Micranthes bryophora M. E. Jones 1881-7-21 2413 Nevada Soda Springs 2133 Comment
  CAS-BOT-BC428680  Micranthes bryophora F. Almeda 1993-7-24 7262 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley. 2134 Comment
  CAS-BOT-BC428681  Micranthes bryophora Richard Mc. P Brown 1961-7-6 s.n. Placer Near Sugar Bowl, Emigrant Meadow Comment
  UCD22364  Micranthes bryophora Beth Lowe Corbin 1982-8-19 386 Placer 2 miles SSE of The Cedars. 2011 Comment
  UCD22372  Micranthes bryophora Rex Palmer 1979-6-19 N 244 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22374  Micranthes bryophora Rex Palmer 1979-7-11 N 555 Placer Headwaters basin area of the North Fork of the American River. Comment
  SCFS1180  Micranthes californica E. Krimmel, F. Felix 2014-5-10 Placer North Fork, American River. Comment
  SCFS1224  Micranthes californica E. Krimmel 2014-5-10 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Comment
  UCD22368  Micranthes nidifica Rex Palmer 1979-7-12 N 623 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22370  Micranthes nidifica Rex Palmer 1979-6-19 N 263 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21782  Microseris nutans Beth Lowe Corbin 1982-8-6 264 Placer 1/4 mile SW of Onion Creek campground. 1889 Comment
  UCD21783  Microseris nutans Rex Palmer 1979-6-20 N 329 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21784  Microseris nutans Rex Palmer 1979-6-19 N 221 Placer Headwaters basin area of the North Fork of the American River Comment
  RSA791127  Mimulus breweri Rex Palmer 1979-6-20 N- 328 Placer Near Chickerings. Headwaters Basin Area of the north fork of the American River. [Chickerings may refer to Sherman Chickering's Soda Springs holdings 5 mi se of Donner Lake.] Comment
  UCD21876  Mimulus breweri Beth Lowe Corbin 1982-8-18 367 Placer 1 mile SW of The Cedars. 1828 Comment
  UCD21895  Mimulus breweri Rex Palmer 1979-6-19 N 220 Placer Placer County. Exact loction unknown. Comment
  SCFS1146  Mimulus cardinalis E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #5. First creek crossing on trail (Onion Creek) Comment
  SCFS1142  Mimulus guttatus E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Stop #5. Comment
  SCFS11529156  Mimulus guttatus Unknown 2014-7-5 Placer Onion Creek crossing near confluence with NF Am. river, on trail Comment
  SCFS1200  Mimulus guttatus E. Krimmel 2014-6-26 Placer Rocky seep on sunny slope, above river below confluence with Serena Creek Comment
  SCFS5095  Mimulus guttatus F. Felix, Erica Krimmel 2013-5-19 20 Placer North Fork American River, 0.3 mile east Heath Falls overlook, on trail Comment
  SCFS1166  Mimulus lewisii E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Drying creek bed at Chickering. Comment
  UC1063101  Mimulus lewisii B. Bolt 1934-7-16 119 Placer Wabeno Creek Tahoe National Forest, Truckee Quadrangle Comment
  UCD21878  Mimulus lewisii Beth Lowe Corbin 1982-8-3 175 Placer Onion Creek campground. 1841 Comment
  UCD21888  Mimulus lewisii Rex Palmer 1979-7-25 N 676 Placer Exact location unknown. Comment
  UCD21877  Mimulus moschatus Beth Lowe Corbin 1982-8-10 289 Placer 3/4 mile west of Onion Creek campground. 2023 Comment
  UCD21891  Mimulus moschatus Rex Palmer 1979-7-9 N 436 Placer Onion Creek meadow #2. Comment
  UCD21889  Mimulus primuloides Rex Palmer 1979-7-9 N 451 Placer Onion Creek meadow #2. Comment
  SCFS1028  Mimulus torreyi E. Krimmel 2014-7-5 Placer In steep section along Soda Springs road switchbacks. Comment
  SCFS1235  Mimulus torreyi E. Krimmel 2013-1 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook at Land of the Lost. Comment
  UCD21879  Mimulus torreyi Beth Lowe Corbin 1982-8-3 193 Placer west of Onion Creek campground. 1853 Comment
  UCD21894  Mimulus torreyi Rex Palmer 1979-6-19 N 222 Placer Exact location unknown. Comment
  CDA16052  Mitella breweri G. F. Hrusa, J. Glazner 2000-9-3 15662 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD22029  Monardella odoratissima subsp. glauca Beth Lowe Corbin 1982-8-2 163 Placer Onion Creek campground. In dry drainageway, of fine, sandy, granitic soil. Subshrub 1' high, with pale purplish to whitish flowers, and strong mint odor. Mostly sun. South facing slope. Uncommon. 1841 Comment
  CDA16039  Monardella odoratissima subsp. pallida G. F. Hrusa, J. Glazner 2000-9-3 15674 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CHSC67818  Monardella odoratissima subsp. pallida James D. Jokerst 1986-7-13 2739 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, above Ted Beedy's 'El Cap'. Comment
  RSA751290  Monardella odoratissima subsp. pallida George K. Helmkamp, E. A. Helmkamp 2008-8-20 14030 Placer 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
  UC1124571  Monardella odoratissima subsp. pallida B. Bolt 1934-7-16 117 Placer 1 1/2 mile SE of Heath Springs (on Plot 206); Tahoe National Forest, Truckee Quadrangle Comment
  UCR201923  Monardella odoratissima subsp. pallida George 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
  SACT001585  Muhlenbergia filiformis D. Meyer 1984-7-15 Placer Moist mountain meadow 25 km from lodge. 1909.0 Comment
  SACT001586  Muhlenbergia filiformis D. Meyer 1984-7-15 Placer At edge of Serene Lake. 1909.0 Comment
  UCD22225  Muhlenbergia filiformis Rex Palmer 1979-7-9 N 442 Placer Headwaters basin area of the North Fork of the American River Comment
  CHSC68075  Muhlenbergia richardsonis James D. Jokerst 1986-7-12 2690 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  UCD22112  Navarretia breweri Rex Palmer 1979-6-19 N 248 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22114  Navarretia breweri Rex Palmer 1979-6-21 N 385 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22115  Navarretia breweri Rex Palmer 1979-7-12 N 609 Placer Headwaters basin area of the North Fork of the American River. Comment
  SEINET4207339  Navarretia capillaris Beth Lowe Corbin 1982-8-11 326 Placer 1.5 mile WNW of Onion Creek campground.; 0 1951 Comment
  UCD21978  Navarretia capillaris Beth Lowe Corbin 1982-8-11 326 Placer 1 1/2 mile WNW of Onion Creek campground. In moist, fine, sandy soil. Meadowy drainage in White Fir forest. Flowers white, anthers blue. Mostly shade. SE facing slope, 20% incline. Locally frequent. 1950 Comment
  UCD21972  Navarretia divaricata Beth Lowe Corbin 1982-8-18 366 Placer 1 mile SW of The Cedars. In sandy, disturbed soil along logging road in White Fir forest. Flowers white, aging to pink. Ful lsun. NE facing slope, 20% incline. Common. 1828 Comment
  SCFS11529178  Navarretia leptalea E. Krimmel 2013-6-13 Placer NFAm. Cedars full trail. S. side top. Comment
  UCD21981  Navarretia leptalea Beth Lowe Corbin 1982-8-3 190 Placer Onion Creek campground. In fine, sandy, granitic soil. Open area disturbed by flooding. Flowers purple with yellow throat bases. Full sun. Locally very abundant. 1841 Comment
  UCD22106  Navarretia leptalea Rex Palmer 1979-6-19 N 212 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22108  Navarretia leptalea Rex Palmer 1979-6-20 N 330 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21971  Navarretia leucocephala subsp. minima Beth Lowe Corbin 1979-8-3 180 Placer Onion Creek campground. Disturbed ground in open, dry meadow. Small, annual herb with whitish to pale purple flowers. Full sun. Abundant. Southwest facing slope. 1841 Comment
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Sep 17 2015
  UCD22023  Nemophila spatulata Rex Palmer 1979-6-9 N 173 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22024  Nemophila spatulata Rex Palmer 1979-6-8 N 124 A Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21985  Orobanche californica subsp. grayana Beth Lowe Corbin 1982-8-19 384 Placer 2 miles south of The Cedars. 2118 Comment
  UCD22164  Orthilia secunda Rex Palmer 1979-7-11 N 537 Placer Headwaters basin area of the North Fork of the American River Comment
  UC1063494  Orthocarpus cuspidatus subsp. cryptanthus N. French 1934-6-22 447 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle, w of Lake Dulzura Comment
  UCD21898  Orthocarpus cuspidatus subsp. cryptanthus Beth Lowe Corbin 1982-8-4 241 Placer 1 1/2 mile north of Onion Creek campground. 2255 Comment
  UCD21899  Orthocarpus cuspidatus subsp. cryptanthus Rex Palmer 1979-7-25 N 672 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21639  Osmorhiza berteroi Rex Palmer 1979-6-20 N 308 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21670  Osmorhiza berteroi Beth Lowe Corbin 1982-8-6 271 Placer About 1/3 mile west of Onion Creek campground. In rocky, fine, sandy soil about 10 yards freom stream. Partial sun. South facing slope, 30% incline. Uncommon. 1920 Comment
  CAS-BOT-BC413164  Oxyria digyna A. A. Heller 1917-8-14 12922 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  CAS-BOT-BC413165  Oxyria digyna A. A. Heller 1917-8-14 12922 Placer Mt. Lincoln south of Summit Valley 2499 Comment
  UC849847  Oxyria digyna A. A. Heller 1917-8-14 12922 Placer near the crest Mt. Lincoln (s of Summit valley); Mt. Lincoln s of Summit valley 2499 Comment
  UCD22103  Paeonia brownii Rex Palmer 1979-6-20 N 347 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22226  Panicum acuminatum var. acuminatum Beth Lowe Corbin 1982-8-11 321 Placer 1 3/4 miles SW of Onion Creek Campground. SE facing slope, 45% incline. Occasional. Full sun. Open rock outcrop in montane chaparral. Perennial. 1920 Comment
  UCD22331  Pectiantia breweri Rex Palmer 1979-7-12 N 651 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22332  Pectiantia breweri Rex Palmer 1979-6-19 N 272 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21901  Pedicularis attollens Beth Lowe Corbin 1982-8-11 312 Placer 1 1/2 mile WSW of Onion Creek campground. 1935 Comment
  UCD21900  Pedicularis groenlandica Rex Palmer 1979-7-11 N 549 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21902  Pedicularis semibarbata Beth Lowe Corbin 1982-8-6 270 Placer About 1/2 mile west of Onion Creek campground. 1950 Comment
  UCD21903  Pedicularis semibarbata Rex Palmer 1979-6-20 N 284 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS11529162  Pellaea brachyptera E. Krimmel, F. Felix 2012-9-13 Placer North Fork, American River. Comment
  UCD23227  Pellaea brachyptera Beth Lowe Corbin 1982-8-9 288 Placer 2/3 mile southwest of Onion Creek campground. 1767 Comment
  CAS-BOT-BC67607  Pellaea bridgesii C. F. Sonne 1886-7-5 3221 Placer Sierra Nevada Mts. - Above Summit Station 2209 Comment
  UC197901  Pellaea bridgesii C. F. Sonne 1886-7-5 Placer Summit Station 2194 Comment
  UCD137727  Pellaea bridgesii S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  UCD69352  Pellaea bridgesii S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  SCFS1163  Penstemon E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. In roadside area at Chickering Meadow. Comment
  UCD21907  Penstemon Rex Palmer 1979-6-19 N 271 Placer Headwaters basin area of the North Fork of the American River Comment
  NY571168  Penstemon azureus var. azureus C. F. Sonne 1886-7-5 s.n. Placer Summit Station; Sierra Nevada Mountains Comment
  UCD21909  Penstemon deustus Rex Palmer 1979-6-21 N 374 Placer Headwaters basin area of the North Fork of the American River 2194 Comment
  CDA16041  Penstemon gracilentus G. F. Hrusa, J. Glazner 2000-9-3 15672 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run., 2164 Comment
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Nov 7 2007
  CHSC85478  Penstemon gracilentus G. F. Hrusa; J. Glazner 2000-9-3 15672 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD21905  Penstemon heterodoxus Beth Lowe Corbin 1982-8-24 414 Placer 2 1/2 miles SSE of The Cedars. In rocky, fine, sandy soil. Open, meadowy hillside in Red Fir forest. Flowers deep purple, throat paler. Full sun. North facing slope, 40% incline. Occasional. 2194 Comment
  CAS-BOT-BC264480  Penstemon heterodoxus var. heterodoxus F. Almeda 1993-7-24 7255 Placer About 15 miles SE of Interstate Highway 80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  CAS-BOT-BC264487  Penstemon heterodoxus var. heterodoxus Betty J. Jorgensen 1944-7-23 532 Placer Near Soda Springs Comment
  SCFS1157  Penstemon laetus E. Krimmel 2013-7-26 Placer NFAm. Swimming Hole Trail. Rocky overlook. Comment
  UCD21906  Penstemon laetus Beth Lowe Corbin 1982-8-2 162 Placer Onion Creek campground. In fine, sandy, granitic soil along disturbed bank. Perennial herb, with blueish violet flowers. Mostly sun. South facing slope. Uncommon. 1841 Comment
  SCFS11529146  Penstemon newberryi E. Krimmel 2014-4-21 Placer Point Mariah Comment
  SCFS1206  Penstemon newberryi E. Krimmel 2014-4-21 Placer Farthest rocky outcrop on Point Mariah Comment
  UCD21908  Penstemon newberryi Rex Palmer 1979-5-27 N 75 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21910  Penstemon newberryi Rex Palmer 1979-6-9 N 151 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD21911  Penstemon newberryi Rex Palmer 1979-7-11 N 574 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21912  Penstemon newberryi Rex Palmer 1979-7-11 N 576 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC239581  Penstemon rydbergii var. oreocharis L. S. Smith 1939-7-1 s.n. Placer Ice Lakes, Tahoe National Forest 609 Comment
  UCD21638  Perideridia bolanderi Rex Palmer 1979-6-21 N 422 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21640  Perideridia bolanderi Rex Palmer 1979-6-19 N 229 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21671  Perideridia bolanderi Beth Lowe Corbin 1982-8-4 221 Placer 1/4 mile NW of Onion Creek campground. Flowers whitish cream. Bulb about 3-4 inches below ground. In rocky, fine, sandy soil. Full sun. SW facing slope, 15% incline. Locally abundant. 1950 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
  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
  UCD21672  Perideridia parishii Beth Lowe Corbin 1982-8-10 293 Placer 3/4 mile WSW of Onion Creek campground. In rocky, fine, sandy and organic soil. Flowers white. Mostly shade. SE facing slope, 10% incline. Uncommon. 2023 Comment
  SEINET11155459  Perideridia parishii subsp. latifolia A. Robinson, C. Mausert-Mooney, M. McCoy-Sulentic 2009-8-27 NV 030 -280 Placer Onion Creek, take 80 W into cali, exit Donnor pass rd. and head towards the donnor campground, keep on Donnor pass until you get to Soda Springs road and turn left. Follow Soda Springs road until you get to dirt follow for approximately 4 miles to a meadow on left side of the road which is the collections site. 1862 Comment
  UCD21932  Persicaria lapathifolia Beth Lowe Corbin 1982-8-3 188 Placer Onion Creek campground. In fine, sandy, granitic soil. Herb up to 4' high. Flowers whitish. Partial shade. Locally abundant. Southwest facing slope. 1841 Comment
  SEINET3924413  Persicaria wallichii Beth Lowe Corbin 1982-8-3 188 Placer Onion Creek campground.; 0 1841 Comment
  UCD22076  Phacelia Rex Palmer 1979-6-20 N 325 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22077  Phacelia Rex Palmer 1979-6-20 N 280 Placer Headwaters basin area of the North Fork of the American River. Comment
  CDA16032  Phacelia hydrophylloides G. F. Hrusa, J. Glazner 2000-9-3 15681 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CHSC85485  Phacelia hydrophylloides G. F. Hrusa; J. Glazner 2000-9-3 15681 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UC909967  Phacelia mutabilis A. A. Heller 12890 Placer Summit Station 2121 Comment
  UCD22020  Phacelia mutabilis Beth Lowe Corbin 1982-8-2 155 Placer Onion Creek Campground. 1841 Comment
  CDA16037  Phacelia racemosa G. F. Hrusa, J. Glazner 2000-9-3 15676 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CHSC89293  Phacelia racemosa G. F. Hrusa; J. Glazner 2000-9-3 15676 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. On old sky run edge. UTM: 10S, 4354752 N, 0728157 E. 2164 Comment
  UCD22018  Phacelia ramosissima Beth Lowe Corbin 1982-8-10 307 Placer 1.5 miles NW of Onion Creek Campground. 2057 Comment
  CDA16036  Phacelia tetramera G. F. Hrusa, J. Glazner 2000-9-3 15677 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  SACT001735  Phleum alpinum Michael Baad 1976-7-21 Placer Lower southwest-facing slopes of Lyon Peak. 10 miles southeast of Soda Springs. 2377.0 Comment
  UCD89344  Phleum alpinum R. Tofsrud 1951-7-11 s.n. Placer Ice Lake, 4 miles S of Soda Springs. Comment
  SCFS1199  Phlox diffusa E. Krimmel 2014-4-21 Placer Point Mariah Comment
  UCD21969  Phlox diffusa Rex Palmer 1979-5-27 N 80 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21970  Phlox diffusa Rex Palmer 1979-6-9 N 163 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  UCD22116  Phlox diffusa Rex Palmer 1979-6-19 N 252 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD69329  Phlox diffusa Ted Graber 1984-5-28 12 Placer Placer Co.; on Soda Springs Rd. 1.5 mi. from Serene Lakes along edge of ridge; in Lodgepole Forest dominanted by Prunus, Pinus contorta and Juniperus; fairly common herb, 1 dm. tall with violet/blue flowers; growing in dry, gravelly soil with granite parent material in full sun with high wind exposure. 2072 Comment
  UCD22353  Phoenicaulis cheiranthoides Rex Palmer 1979-6-21 N 427 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22354  Phoenicaulis cheiranthoides Rex Palmer 1979-6-9 N 157 Placer Headwaters basin area of the North Fork of the American River. 2255 Comment
  UCD22380  Phoenicaulis cheiranthoides Beth Lowe Corbin 1982-8-10 305 Placer 1 3/4 mile NW of Onion Creek Campground. SE facing slope, 40% incline. Locally common. Full sun. Open, rocky talus slope, above white fir forest. 2133 Comment
  CHSC81827  Phoradendron densum Lowell Ahart 2001-10-10 9336 Placer West of Soda Springs Road, about one mile south of Ice Lakes, about 3 miles south of Soda Springs and Highway 80. 2011 Comment
  JEPS102476  Phoradendron densum Lowell Ahart 2001-10-10 9336 Placer West of Soda Springs Road, about one mile south of Ice Lakes, about 3 miles south of Soda Springs and Highway 80. 2011 Comment
  CAS-BOT-BC58830  Phyllodoce breweri F. Almeda 1993-7-24 7254 Placer Sierra Nevada - About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley. 2133 Comment
  UCD21481  Phyllodoce breweri Rex Palmer 1979-7-11 N 568 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD23232  Pinus contorta subsp. murrayana Beth Lowe Corbin 1982-8-18 371 Placer 1 mile southwest of The Cedars. 1844 Comment
  UCD23235  Pinus jeffreyi Beth Lowe Corbin 1982-8-25 420 Placer Onion Creek campground. 1841 Comment
  UCD23233  Pinus lambertiana Beth Lowe Corbin 1982-8-20 394 Placer 1 mile northwest of Onion Creek campground. 2072 Comment
  UCD23234  Pinus monticola Beth Lowe Corbin 1982-8-19 377 Placer 1 1/4 mile SSW of The Cedars. 1828 Comment
  SCFS1164  Piperia E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Chickering Meadow. Comment
  UCD22067  Piperia unalascensis Beth Lowe Corbin 1982-8-6 269 Placer 1/2 mile west of Onion Creek Campground. South facing slope, 30 % incline. 1950 Comment
  UCD22151  Plagiobothrys Rex Palmer 1979-6-9 N 180 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22153  Plagiobothrys Rex Palmer 1979-5-27 N 47 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22146  Plagiobothrys cognatus Rex Palmer 1979-6-8 N 127 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22150  Plagiobothrys cognatus Rex Palmer 1979-6-20 N 333 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21983  Plantago lanceolata Beth Lowe Corbin 1982-8-11 311 Placer 1 1/4 mile WNW of Onion Creek campground. In rocky, fine, sandy soil on old logging road. Clumped perennial. Bracts brown, anthers yellow. Mostly sun. West facing slope, 20% incline. Uncommon. 1981 Comment
  UCD21984  Plantago major Beth Lowe Corbin 1982-8-12 329 Placer Onion Creek campground. In sandy soil. Disturbed meadow near stream. Perennial. Inflorescence green. Full sun. SW facing slope, 5% incline. Common. 1841 Comment
  UCD22068  Platanthera dilatata var. leucostachys Beth Lowe Corbin 1982-8-12 332 Placer Onion Creek, a few hundred yards above campground. 1841 Comment
  SJSU9122  Platanthera sparsiflora Robert L. Fisher 1959-8-5 Placer Emigrant Meadow at head of Sugar Bowl Creek (S Fork Yuba R) 3 mi S of Norden 2286 Comment
  UCD22069  Platanthera sparsiflora Rex Palmer 1979-7-11 N 536 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22070  Platanthera sparsiflora Rex Palmer 1979-7-25 N 680 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21921  Pleuricospora fimbriolata Beth Lowe Corbin 1982-8-10 292 Placer 3/4 mile WSW of Onion Creek campground. In fine, sandy and organic soil. Small meadow in White Fir forest. Plant completely white, colorless. Partial sun. SE facing slope, 10% incline. Rare. 2023 Comment
  UCD22231  Poa Rex Palmer 1979-6-8 N 113 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR270687  Poa John F. Emmel 1998-7-9 1575 Placer Sierra Nevada Mountains, Donner Pass area, south peak of Mt. Judah 2513 Comment
  UCR270689  Poa John F. Emmel 1998-7-9 1574 Placer Sierra Nevada Mountains, Donner Pass area, south peak of Mt. Judah 2513 Comment
  CDA16043  Poa bolanderi G. F. Hrusa, J. Glazner 2000-9-3 15670 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. Abies concolor, A. magnifica, Pinus monticola, P. contorta forest with dense herbaceous understory. Along old logging roadbed. Annual. 2164 Comment
  CHSC68076  Poa bolanderi James D. Jokerst 1986-7-12 2689 Placer Trail from The Cedars, high Sierra Nevada NW of Donner Lake, S side of river along trail from Chickerings home upstream to Blue and Gold Meadow. Comment
  UC1132588  Poa bolanderi N. French 1934-6-22 452 Placer 1/2 mi w Lake Dulzura; Truckee Quadrangle Comment
  UCD22229  Poa bolanderi Beth Lowe Corbin 1982-8-17 365 Placer 2 miles SW of The Cedars. N facing slope, 20% incline. Occasional. Mostly sun. Forming small tufts in fine, sandy, disturbed soil in logged white fir forest. Foliage glaucous. 1859 Comment
  SACT001834  Poa compressa D. Meyer 1984-9-9 Placer East fork of the North Fork of the North Fork of the American River. 1394.0 Comment
  CHSC67744  Poa cusickii subsp. epilis James D. Jokerst 1986-7-13 2740 Placer Trail from The Cedars, high Sierra Nevada SW of Donner Lake, above Ted Beedy's 'El Cap' on trail. Comment
  SACT001842  Poa fendleriana Michael Baad 1983-9-3 Placer On saddle to Mount Lincoln to summit of Mount Lincoln 2529.0 Comment
  UCD22228  Poa fendleriana subsp. longiligula Beth Lowe Corbin 1982-8-18 370 Placer 5/6 mile SW of The Cedars. Common. Full sun. In rocky, sandy, granitic soil of montane chaparral. Perennial forming moderately small bunches. Culms purplish. 1844 Comment
  SACT001848  Poa gracillima Michael Baad 1983-9-3 Placer Collected on trail from Spitz Inn to western slope of Mount Judah near summit. 2286.0 Comment
  SACT001863  Poa incurva Michael Baad 1976-7-21 Placer Tree line along ridge northwest of Lyon peak, volcanic debris, 16 km southeast of Soda Springs. 2377.0 Comment
  SACT001872  Poa nervosa D. Meyer 1984-7-15 Placer 4.8 km southeast of Serene Lake Lodge, rocky outcrop at side of road. 1909.0 Comment
  SACT001873  Poa nervosa Michael Baad 1976-7-21 Placer Southwestern face of Lyon Peak descending to spring emptying into the Middle Fork of the American River. 16 km southeast of Soda Springs. 2377.0 Comment
  SACT001929  Poa pratensis D. Meyer 1984-9-9 Placer Collected at east fork of north fork of north fork of american river 1394.0 Comment
  SACT001936  Poa pratensis D. Meyer 1984-7-15 Placer 8.2 km from Serene Lakes 1909.0 Comment
  UCD22230  Poa pratensis subsp. pratensis Beth Lowe Corbin 1982-8-3 170 Placer Onion Creek Campground. S facing slope. Moderately abundant in localized patches. Full sun. Open, dry meadow in fine, sandy, granitic soil. Perennial, with rhizomes, forming moderately thick mats. 1841 Comment
  SACT001884  Poa pringlei Michael Baad 1976-7-22 Placer Northwest face of Lyon Peak to crest. 10 miles southwest of Soda Springs. 2377.0 Comment
  SACT001886  Poa pringlei Michael Baad 1976-7-21 Placer Ridge at the line west north west of Lyon Peak, and north-facing slope at crest of Lyon Peak. 10 miles southeast of Soda Springs. 2377.0 Comment
  RSA126919  Poa secunda N. H. French 1934-6-22 s.n. Placer 7/8 mile W. of Dulzura Lake. 2287 Comment
  UCD22232  Poa secunda subsp. juncifolia Rex Palmer 1979-6-20 N 319 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22233  Poa secunda subsp. juncifolia Rex Palmer 1979-6-21 N 410 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22234  Poa secunda subsp. juncifolia Rex Palmer 1979-6-21 N 409 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22235  Poa secunda subsp. juncifolia Rex Palmer 1979-6-21 N 372 Placer Headwaters basin area of the North Fork of the American River Comment
  UC1132846  Poa secunda subsp. secunda N. French 1934-6-22 449 Placer 7/8 mi w Dulzura Lake; Tahoe Nat'l Forest, Truckee Quadrangle Comment
  UC926116  Poa secunda subsp. secunda A. S. Hitchcock Jul 14 1913-Jul 16 1913 1203 Nevada vicinity Truckee (Mt Lincoln) Comment
  UC926117  Poa secunda subsp. secunda A. S. Hitchcock Jul 14 1913-Jul 16 1913 1202 Nevada vicinity Truckee (Mt Lincoln summit) Comment
  UC926118  Poa secunda subsp. secunda A. S. Hitchcock Jul 14 1913-Jul 16 1913 1201 Nevada vicinity Truckee (Mt Lincoln) Comment
  UCD22227  Poa secunda subsp. secunda Beth Lowe Corbin 1982-8-4 218 Placer 1/4 mile NW of Onion Creek Campground. SW facing slope, 15% incline. Locally common. Full sun. In rocky, fine, sandy soil in opening in montane chaparral. Perennial, forming small, dense tufts. 1950 Comment
  UC926637  Poa wheeleri A. S. Hitchcock Jul 14 1913-Jul 16 1913 1192 Nevada vicinity Truckee (summit of Mt Lincoln) Comment
  UC926638  Poa wheeleri A. S. Hitchcock Jul 14 1913-Jul 16 1913 1191 Nevada vicinity Truckee (summit of Mt Lincoln) Comment
  UC926639  Poa wheeleri A. S. Hitchcock Jul 14 1913-Jul 16 1913 1190 Nevada vicinity of Truckee (summit of Mt Lincoln) Comment
  UCD21968  Polemonium californicum Beth Lowe Corbin 1982-8-23 408 Placer 2 miles SW of The Cedars. In fine, sandy, organic soil. Flowers blue with white throat. Partial sun. North facing slope, 40% incline. Occasional. 2103 Comment
  CDA16046  Polemonium pulcherrimum G. F. Hrusa, J. Glazner 2000-9-3 15666 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of Crow's Nest ski run. 2164 Comment
  CHSC85689  Polemonium pulcherrimum G. F. Hrusa; J. Glazner 2000-9-3 15666 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  SEINET6647275 Image available Polygonum A. A. Heller 1917-1 12934 Placer Mount Lincoln S of Summit Valley 2438 Comment
  UC1136185  Polygonum davisiae N. French 1934-6-22 446 Placer 7/8 mi w Dulzura Lake; Truckee Quadrangle Comment
  UCD21929  Polygonum douglasii Beth Lowe Corbin 1982-8-10 297 Placer 1 1/4 miles WNW of Onion Creek campground. Rocky, fine, sandy soil. Open disturbed area, old logging landing, in White Fir forest. Full sun. SW facing slope, 15% incline. Locally abundant. 1981 Comment
  UCD100473  Polygonum minimum D. Sanchez-Mata; S. Rivas, M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 s.n. Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. 1850 Comment
  UCD21930  Polygonum minimum Beth Lowe Corbin 1982-8-16 352 Placer 1/2 mile NW of Onion Creek campground. In loose, rocky outcrop in montane chaparral. Calyx white. Stems reddish. Full sun. SE facing slope, 30% incline. Locally common. 2042 Comment
  UC849102  Polygonum phytolaccifolium A. A. Heller 1917-8-14 12934 Placer s Summit Valley; Mt. Lincoln 2438 Comment
  CAS-BOT-BC109255  Polygonum shastense M. E. Parsons 1912-8-25 s.n. Placer Crow Peak Summit. Comment
  UCD21933  Polygonum shastense Beth Lowe Corbin 1982-8-4 237 Placer 1 1/2 mile NNW of Onion Creek campground. In rocky, fine, sandy soil on subalpine talus slope. Spreading perennial. White calyx. East facing slope, 40% incline. Full sun. Uncommon. 2286 Comment
  RSA3403  Populus balsamifera subsp. trichocarpa Carl B. Wolf 1931-9-11 2422 Placer near creek, 7 miles below summit of Donner Pass, W slope of Sierra Nevada 1829 Comment
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Aug 27 2010
  UCD22301  Populus tremuloides Beth Lowe Corbin 1982-8-5 253 Placer Onion Creek campground. In sandy, granitic soil near streambed. Tree about 25' high; bark white papery, leaves quaking. Mostly sun. SW facing slope, 15% incline. Uncommon. 1841 Comment
  CAS-BOT-BC104250  Populus trichocarpa C. B. Wolf 1931-9-11 1298 Placer Near creek, 7 miles below summit of Donner Pass, west slope of Sierra Nevada 1828 Comment
  CAS-BOT-BC105576  Populus trichocarpa C. B. Wolf 1931-9-11 1298 Placer Near creek, 7 miles below summit of Donner Pass, west slope of Sierra Nevada 1828 Comment
  POM212165  Populus trichocarpa Carl B. Wolf 1931-9-11 2422 Placer near creek, 7 miles below summit of Donner Pass, W slope of Sierra Nevada 1829 Comment
  UC527363  Populus trichocarpa C. B. Wolf 1931-9-11 2422 Placer near creek 7 mi below summit Donner Pass (w slope of Sierra Nevada); , below summit Donner Pass 1828 Comment
  UCD22300  Populus trichocarpa Beth Lowe Corbin 1982-8-25 417 Placer Onion Creek campground. In fine, sandy soil along stream edge. Tree 40' high. Old bark grey, furrowed. Full sun. South facing slope, 15% incline. Common. 1841 Comment
  UCD22302  Populus trichocarpa Rex Palmer 1979-7-9 N 438 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22303  Populus trichocarpa Rex Palmer 1979-5-27 N 55 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22304  Populus trichocarpa Rex Palmer 1979-6-7 N 399 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22276  Potentilla breweri Rex Palmer 1979-6-20 N 352 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22272  Potentilla gracilis Rex Palmer 1979-7-9 N 435 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22273  Potentilla gracilis Rex Palmer 1979-7-10 N 511 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22275  Potentilla gracilis Rex Palmer 1979-7-11 N 535 Placer Headwaters basin area of the North Fork of the American River. Comment
  SJSU5489  Primula suffrutescens R. L. Fisher 1959-8-16 Placer E-facing slope of ridge c. 1 mi NW of Anderson Peak 2438 Comment
  SCFS1027  Prunella vulgaris E. Krimmel 2014-7-5 Placer Near the creek. Comment
  UCD22026  Prunella vulgaris var. lanceolata Beth Lowe Corbin 1982-8-5 250 Placer Onion Creek campground. In wet soil along stream's edge. Corolla upper lip purplish, lower lip white tinged with pink. Weak stems. Mostly sun. SW facing slope, 15% incline. Occasional. 1841 Comment
  UCD22277  Prunus emarginata Beth Lowe Corbin 1983-8-3 195 Placer Hill west of Onion Creek Campground. SW facing slope, 30% inclination. Mostly sun. Uncommon. Opening in whtie fir forest in fine, sandy, granitic soil. Shrub 6 ft tall, with reddish twigs, older bark greyish. Berries picked green. 1853 Comment
  UCD22278  Prunus emarginata Rex Palmer 1979-6-21 N 396 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22279  Prunus emarginata Rex Palmer 1979-5-26 N 8 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD22280  Prunus emarginata Rex Palmer 1979-6-9 N 152 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  UCD22281  Prunus emarginata Rex Palmer 1979-5-26 N 13 Placer Headwaters basin area of the North Fork of the American River 1950 Comment
  UCD22282  Prunus emarginata Rex Palmer 1979-7-12 N 642 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD23229  Pteridium aquilinum var. pubescens Beth Lowe Corbin 1982-8-3 194 Placer Hill west of Onion Creek campground. 1853 Comment
  UCD21920  Pterospora andromedea Beth Lowe Corbin 1982-8-23 407 Placer 2 miles WSW of The Cedars. In deep Conifer duff in logged White Fir forest. Stem pinkish. Flowers creme white. Mostly shade. North facing slope, 40% incline. Rare. 2072 Comment
  UCD22283  Purshia tridentata Rex Palmer 1979-6-9 N 142 Placer Headwaters basin area of the North Fork of the American River. 2255 Comment
  CAS-BOT-BC147865  Purshia tridentata var. tridentata John Thomas Howell 1943-7-26 18836 Placer Mt. Lincoln Comment
  CDA16038  Pyrola picta G. F. Hrusa, J. Glazner 2000-9-3 15675 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD117818  Pyrola picta G. F. Hrusa; J. Glazner 2000-9-3 15675 A Placer Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD21918  Pyrola picta Beth Lowe Corbin 1982-8-2 154 Placer Onion Creek campground. In deep, partially decomposed duff beneath Calocedrus decurrens, in mixed Conifer forest. Perennial herb with long, slender rootstock. Leaves firm, somewhat fleshy. Flowers unopened, greenish white. Leaves with white markings along veins. Full shade. South facing slope. Uncommon. 1841 Comment
  UCD21919  Pyrola picta Rex Palmer 1979-5-27 N 41 Placer Headwaters basin area of the North Fork of the American River 1889 Comment
  UCD22163  Pyrola picta Rex Palmer 1979-7-25 N 805 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21487  Quercus Rex Palmer 1979-5-26 N 7 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD22469  Quercus chrysolepis Beth Lowe Corbin 1982-8-11 318 Placer 1 2/3 miles SW of Onion Creek campground. 1905 Comment
  UCD45600  Quercus chrysolepis Beth Lowe Corbin 1982-8-11 318 Placer 1 2/3 miles SW of Onion Creek campground. Elevation 6250 ft. 1905 Comment
  UCD21486  Quercus kelloggii Beth Lowe Corbin 1982-8-9 281 Placer 1/2 mile SW of Onion Creek Campground. 1828 Comment
  UCD21483  Quercus vacciniifolia Rex Palmer 1979-5-26 N 6 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UCD21488  Quercus vacciniifolia Rex Palmer 1979-7-26 N 832 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21489  Quercus vacciniifolia Rex Palmer 1979-6-9 N 146 Placer Headwaters basin area of the North Fork of the American River 2346 Comment
  UCD21490  Quercus vacciniifolia Beth Lowe Corbin 1982-8-4 206 Placer Located on hill west of Onion Creek Campground. 1853 Comment
  CAS-BOT-BC362680  Raillardella argentea John Thomas Howell 1943-7-21 18673 Placer Mt. Lincoln Comment
  UCD22190  Ranunculus alismifolius Rex Palmer 1979-6-9 N 168 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  UCD22191  Ranunculus alismifolius Rex Palmer 1979-6-20 N 346 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22192  Ranunculus alismifolius Rex Palmer 1979-6-21 N 421 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22193  Ranunculus alismifolius Rex Palmer 1979-6-2 N 367 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22189  Ranunculus occidentalis Rex Palmer 1979-6-19 N 226 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22188  Ranunculus uncinatus Rex Palmer 1979-7-9 N 439 Placer Headwaters Basin Area of the North Fork of the American River. Comment
  CAS-BOT-BC58198  Rhododendron columbianum F. Almeda 1993-7-24 7265 Placer About 15 mi. se. of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley. 2133 Comment
  CAS-BOT-BC438108  Ribes Baki Kasapligil 1974-10-6 4908 Placer N. Calif., Placer Co., Soda Springs Sugar Bowl 2377 Comment
  CAS-BOT-BC108700  Ribes cereum John Thomas Howell 1943-7-26 18839 Placer Mount Lincoln. Comment
  UCD22347  Ribes cereum Rex Palmer 1979-6-21 N 417 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22350  Ribes cereum var. inebrians Rex Palmer 1979-6-20 N 320 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22356  Ribes lasianthum Rex Palmer 1979-6-21 N 360 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22339  Ribes roezlii Beth Lowe Corbin 1982-8-2 151 Placer Onion Creek campground. In fine, sandy, granitic soil. Spiney shrub about 1.5' high with dark grey bark. Berries picked green. Partial sun. South facing slope. Uncommon. 1841 Comment
  UCD22342  Ribes roezlii Rex Palmer 1979-5-26 N 18 Placer Headwaters basin area of the North Fork of the American River. 1950 Comment
  UCD22360  Ribes roezlii Rex Palmer 1979-5-26 N 12 Placer Headwaters basin area of the North Fork of the American River. 2011 Comment
  UCD22362  Ribes roezlii Rex Palmer 1979-5-26 N 21 Placer Headwaters basin area of the North Fork of the American River. 1950 Comment
  UC566249 Image available Ribes viscosissimum N. French 1934-6-22 453 Placer 1/2 mi w Lake Dulzura; Truckee Quadrangle 2133 Comment
  UCD22337  Ribes viscosissimum Beth Lowe Corbin 1982-8-4 247 Placer 1 mile NE of Onion Creek campground. Along streambed in White Fir forest. In conifer litter over fine, sandy, granitic soil. Shrub about 3' high with glandular foliage. Flowers whitish. Foliage aromatic. Partial sun. South facing slope, 20% incline. Uncommon. 1920 Comment
  UCD22346  Ribes viscosissimum Rex Palmer 1979-6-21 N 413 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22352  Ribes viscosissimum Rex Palmer 1979-6-9 N 150 Placer Headwaters basin area of the North Fork of the American River 2438 Comment
  A381036  Ribes viscosissimum var. hallii N. H. French 1934-6-22 453 Unknown 0.5 mile west of Lake Dulzura, southwest of Donner Pass 2133 Comment
  UCD14914  Rorippa Beth Lowe Corbin 1982-8-17 363 Placer California, Placer Co.; 1 2/3 miles southwest of The Cedars; 1813 Comment
  SCFS11529142  Rosa woodsii var. ultramontana E. Krimmel, F. Felix 2012-9-13 Placer Cedar Creek, in woods below Cedar's meadow. Comment
  SCFS1118  Rubus parviflorus E. Krimmel 2013-6-13 Placer NFAm. Cedars full trail. Split #6 Comment
  UCD22284  Rubus parviflorus Beth Lowe Corbin 1982-8-4 205 Placer Hill 1/8 mile W of Onion Creek Campground. S facing slope, 50% inclination. Partial sun. Uncommon. Brushy opening in white fir forest, in deep conifer duff over fine, sandy, granitic soil. Subshrub 10 inches tall. Flowers white. 1853 Comment
  UCD21927  Rumex acetosella Beth Lowe Corbin 1982-8-3 184 Placer Onion Creek campground. In fine, sandy, granitic soil. Disturbed ground near creek and reservoir. Perennial herb. Inflorescence red and yellowish. Full sun. Southwest facing slope. Common. 1841 Comment
  UCD22145  Rumex paucifolius Rex Palmer 1979-6-21 N 357 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21928  Rumex triangulivalvis Beth Lowe Corbin 1982-8-11 324 Placer 1 1/2 mile WSW of Onion Creek campground. In fine, sandy soil in logged White Fir forest. Perennial, forming a loose clump. Calyx reddish. Full sun. SE facing slope, 20% incline. Uncommon. 2011 Comment
  SCFS11529143  Salix E. Krimmel, F. Felix 2012-9-13 Placer Intersection of Serena Creek and NFAm River. Comment
  UCD22305  Salix Beth Lowe Corbin 1982-8-24 415 Placer 2 1/2 miles SE of The Cedars. In wet, fine sandy, rocky soil, along stream in Red Fir forest. Loosely branched shrub to 5' high. Old bark smooth, grey. Partial sun. NE facing slope, 20% incline. Common. 2118 Comment
  UCD22306  Salix Beth Lowe Corbin 1982-8-9 278 Placer 1/3 mile SW of Onion Creek campground. Shrub 13' high. Bark pale, somewhat flaky. Full sun. South facing slope, 15% incline. Uncommon. 1859 Comment
  SCFS1045  Salix eastwoodiae E. Krimmel 2014-8-7 Placer Shore of Needle Lake Comment
  UCD22313  Salix eastwoodiae Rex Palmer 1979-7-11 N 552 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22314  Salix eastwoodiae Rex Palmer 1979-7-11 N 551 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22317  Salix eastwoodiae Rex Palmer 1979-7-11 N 585 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22318  Salix eastwoodiae Rex Palmer 1979-7-11 N 590 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22308  Salix jepsonii Rex Palmer 1979-5-26 N 15 Placer Headwaters basin area of the North Fork of the American River. 1950 Comment
  UCD22309  Salix jepsonii Rex Palmer 1979-6-20 N 313 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22310  Salix jepsonii Rex Palmer 1979-6-20 N 312 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22311  Salix jepsonii Rex Palmer 1979-6-20 N 314 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22315  Salix lemmonii Rex Palmer 1979-6-21 N 416 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22316  Salix lemmonii Rex Palmer 1979-5-26 N 2 Placer Headwaters basin area of the North Fork of the American River 2011 Comment
  UC449849  Salix ligulifolia L. S. Smith 1931-1 3 Placer French Meadows Tahoe Nat'l Forest, American River, French Meadows 1828 Comment
  UCD22319  Salix orestera Rex Palmer 1979-6-21 N 412 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22307  Salix scouleriana Rex Palmer 1979-5-26 N 22 Placer Headwaters basin area of the North Fork of the American River 1950 Comment
  UCD22312  Salix scouleriana Rex Palmer 1979-7-12 N 641 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22158  Sambucus nigra subsp. caerulea Beth Lowe Corbin 1982-8-10 304 Placer 1 1/2 miles WNW of Onion Creek Campground. 2011 Comment
  CDA16054  Sambucus racemosa var. microbotrys G. F. Hrusa, J. Glazner 2000-9-3 15659 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  UCD21631  Sanicula Rex Palmer 1979-6-9 N 153 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21632  Sanicula Rex Palmer 1979-6-9 N 153 Placer Headwaters basin area of the North Fork of the American River. Mount Lincoln. 2438 Comment
  UCD21633  Sanicula graveolens Rex Palmer 1979-6-21 N 428 Placer Headwaters basin area of the North Fork of the American River. Below Tinker Knob. Comment
  UCD21668  Sanicula tuberosa Rex Palmer 1979-6-9 s.n. Placer Headwaters basin area of the North Fork of the American River. Mount Lincoln. Comment
  UCD21674  Sanicula tuberosa Beth Lowe Corbin 1982-8-9 276 Placer 1/4 mile SW of Onion Creek campground. 1859 Comment
  RSA121491  Saxifraga bryophora N. H. French 1934-6-22 464 Placer Serena Lake. 2104 Comment
  UCD21844  Scirpus congdonii Rex Palmer 1979-6-20 N 286 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21846  Scirpus microcarpus Beth Lowe Corbin 1982-8-13 337 Placer 1/8 mile south of Onion Creek campground. Grassy meadow between creek and White Fir forest. Stalks up to 3 1/2' high. Mostly sun. South facing slope, 10% incline. Common. 1816 Comment
  SCFS1144  Scutellaria californica E. Krimmel, F. Felix 2014-6-26 Placer NFam. In dry streambed at NW fork of first creek on trail down (Onion Creek). Comment
  SCFS5070  Scutellaria californica E. Krimmel 2014-6-26 Placer Shade Comment
  UCD125713  Scutellaria californica Rex Palmer 1979-7-25 N 677 Placer Exact location unknown. Comment
  UCD22013  Scutellaria californica Beth Lowe Corbin 1982-8-2 164 Placer Onion Creek campground. In dry drainageway, of fine, sandy, granitic soil. Perennial herb with creme white flowers. Mostly sun. South facing slope. Relatively abundant in 1 localized area. 1841 Comment
  UCD22073  Scutellaria californica Rex Palmer 1979-7-25 N 677 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD102044  Sedum obtusatum Beth Lowe Corbin 1982-8-10 299 Placer 1.25 miles WNW of Onion Creek Campground. 1981 Comment
  UCD69348  Sedum obtusatum S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. American River Canyon. Perennial plant communities growing in massive ultramafic outcrops close to Jeffrey pine open forets (Querco vaccinifoliae-Pinetum jeffreyi Rivas-Martinez and Sanchez-Mata 1997). 1850 Comment
  UCD22330  Sedum obtusatum subsp. obtusatum Rex Palmer 1979-7-10 N 508 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21787  Senecio Rex Palmer 1979-5-27 N 111 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21788  Senecio Rex Palmer 1979-6-9 N 162 Placer Headwaters basin area of the North Fork of the American River 2255 Comment
  CAS-BOT-BC363910  Senecio integerrimus var. exaltatus Betty J. Jorgensen 1944-7-23 531 Placer Near Soda Springs Comment
  UCD21786  Senecio integerrimus var. major Beth Lowe Corbin 1982-8-9 277 Placer 1/4 mile SW of Onion Creek campground. In fine, sandy soil. Opening in White Fir forest. Biennial. Ray and disc flowers withered, apparently yellow. Full sun. South facing slope, 10% incline. Uncommon. 30 Comment
  UCD21785  Senecio triangularis Beth Lowe Corbin 1982-8-5 251 Placer Onion Creek campground. 1841 Comment
  SCFS1233  Sidalcea E. Krimmel 2013-1 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Streamside where trail meets water. Comment
  UCD116665  Sidalcea glaucescens Ted C. MacRae 1995-7-30 62 b Placer Tahoe National Forest, 9 miles south of Serene Lakes on Soda Springs Road. Comment
  UCD22089  Sidalcea glaucescens Rex Palmer 1979-7-25 N 801 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1161  Sidalcea oregana E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Cedar's Meadow. Comment
  UCD21999  Sidalcea oregana Rex Palmer 1979-6-19 N 275 Placer Headwaters basin area of the North Fork of the American River 1841 Comment
  UCD22000  Sidalcea oregana Beth Lowe Corbin 1982-8-2 159 Placer Onion Creek campground. In cut away bank of fine, sandy, granitic soil. Perennial herb, with pink- rose flowers, and semi-spreading stems. Mostly sun. South facing slope. Uncommon. 1841 Comment
  UCD22087  Sidalcea oregana Rex Palmer 1979-6-21 N 393 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21998  Sidalcea oregana subsp. spicata Beth Lowe Corbin 1982-8-13 345 Placer 3/4 mile west of The Cedars, in meadow. Flowers rose pink. Mostly sun. South facing slope, 15% incline. Occasional. 1676 Comment
  SCFS1230  Silene E. Krimmel 2014-6-26 Placer North Fork American River, below Soda Springs Road on trail to Heath Falls Overlook. Comment
  UCD22168  Silene bernardina Beth Lowe Corbin 1982-8-4 224 Placer 1/4 mile NW of Onion Creek Campground. SW facing slope, 15% inclination. Uncommon. Mostly sun. Montane chaparral in rocky, fine, sandy soil. Perennial herb, flowers white. Comment
  UCD22169  Silene douglasii Rex Palmer 1979-7-10 N 509 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22170  Silene douglasii Rex Palmer 1979-6-20 N 305 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC541422  Silene invisa G. Ledyard Stebbins; Charlotte Pyles 1979-7-31 s.n. Placer North slope of ridge betweejn Soda Springs, on North Fork American River, and Peak 2346 Comment
  UC1511353  Silene invisa Charlotte Pyle and G. L. Stebbins 1979-7-31 Placer between Soda Springs and Lyons Peak (on North Fork American River); North Fork American River, btw Soda Springs and Lyons Peak 2072 Comment
  UCD159849  Silene invisa G. Ledyard Stebbins; Charlotte Pyles 1979-7-31 s.n. Placer North slope of ridge between Soda Springs, on North Fork American River, and Lyons Peak. 2072 Comment
  CAS-BOT-BC181355  Silene occidentalis F. Almeda 1993-7-25 7303 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass 1920 Comment
  SCFS11529154  Silene occidentalis E. Krimmel 2014-6-26 Placer Dry opening in conifer forest. Comment
  SCFS1226  Silene occidentalis E. Krimmel 2013-1 Placer North Fork American River. 1/8-m. from Heath Falls Overlook in shade of oak. Comment
  SACT002209  Sitanion hystrix Michael Baad 1983-9-3 Placer Collected from west slope of Mount Judah to saddle between Mount Judah and Mount Lincoln. 2529.0 Comment
  SACT002230  Sitanion hystrix D. Meyer 1984-7-15 Placer 21 km from lodge, rocky outcrop overlooking American River gorge. 1909.0 Comment
  CDA16049  Smilacina racemosa G. F. Hrusa, J. Glazner 2000-9-3 15663 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of Crow's Nest ski run. 2164 Comment
  SCFS1160  Solidago E. Krimmel, F. Felix 2013-7-28 Placer NFAm. Swimming Hole Trail. Cedar's Meadow. Comment
  SCFS1169  Solidago E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. Creekside at Chickering. Comment
  UCD21789  Solidago velutina subsp. californica Beth Lowe Corbin 1982-8-25 423 Placer 2 miles SW of Onion Creek campground. 1965 Comment
  SCFS11529160  Sparganium angustifolium E. Krimmel, F. Felix 2014-8-7 Placer Seasonal pool Comment
  UCD22171  Spergularia rubra Beth Lowe Corbin 1982-8-17 364 Placer 1 2/3 miles SW of The Cedars. NW facing slope, 10% incline. Partial sun. Occasional. In sandy, disturbed soil on logging skid trail in white fir forest near creek. Flowers pale purplish. 1813 Comment
  UCD128093  Sphenosciadium capitellatum Rex Palmer 1983-11-10 N 895 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21630  Sphenosciadium capitellatum Rex Palmer Date Unknown N 895 Placer Headwaters basin area of the North Fork of the American River Comment
  UCR179197  Sphenosciadium capitellatum Rex Palmer 1979-1 N- 895 Placer Sierra Nevada Mtns., Headwaters Basin Region of the North Fork of the American River [vicinity of The Cedars, NW of Squaw Valley, south of Norden] 2134 Comment
  CHSC85686  Spiraea densiflora G. F. Hrusa; J. Glazner 2000-9-3 15678 A Placer Northern Sierra Nevada. Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  CAS-BOT-BC152533  Spiraea splendens F. Almeda 1993-7-24 7258 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley - Sierra Nevada 2133 Comment
  CDA16035  Spiraea splendens G. F. Hrusa, J. Glazner 2000-9-3 15678 A Placer Sierra Nevada; Sugar Bowl Ridge, immediately to W of proposed Crow's Nest ski run. 2164 Comment
  SCFS1104  Spiraea splendens E. Krimmel 2013-6-2 Placer Foresthill Road, Am. River Gorge overlook Comment
  UCD114068  Spiraea splendens G. F. Hrusa; J. Glazner 2000-9-3 15678 A Placer Sugar Bowl Ridge, immediately to w of proposed Crow's Nest ski run. 2164 Comment
  UCD22285  Spiraea splendens Beth Lowe Corbin 1982-8-10 295 Placer 1 mile WNW of Onion Creek Campground. SW facing slope, 15% incline. Partial sun. Locally common. In fine, sandy soil, near road in white fir forest. Shrub 2 ft tall. Flowers dark pink. 2072 Comment
  UCD22286  Spiraea splendens Rex Palmer 1979-7-10 N 513 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22172  Stellaria longipes subsp. longipes Rex Palmer 1979-7-9 N 452 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC375011  Stenotus acaulis John Thomas Howell 1943-7-26 18838 Placer Mt. Lincoln Comment
  UC710568  Stenotus acaulis John Thomas Howell 1943-7-26 18838 Placer Mt. Lincoln Comment
  UC202225  Stephanomeria lactucina Heller 12893 Placer Summit Station 2121 Comment
  UCD21790  Stephanomeria lactucina Beth Lowe Corbin 1982-8-4 209 Placer 1/4 mile W of Onion Creek campground. 1856 Comment
  UCD69357  Stephanomeria lactucina S. Rivas; M. Barbour, D. S. Mata and P. Rodriguez 1997-9-3 Placer Soda Springs. Soda Springs Road. Tahoe National Forest. 2100 Comment
  SACT002319  Stipa californica Michael Baad 1983-9-3 Placer Collected from west slope of Mount Judah to saddle between Mount Judah and Mount Lincoln. 2529.0 Comment
  SACT002326  Stipa californica D. Meyer 1984-7-15 Placer 1.3 km from Serene Lake Lodge 1909.0 Comment
  SACT002329  Stipa californica D. Meyer 1984-7-15 Placer Collected 2.2 miles from lodge. Opening in forest canopy. 1909.0 Comment
  SACT002346  Stipa elmeri D. Meyer 1984-9-9 Placer Comment
  CAS-BOT-BC87769  Streptanthus tortuosus F. Almeda 1993-7-24 7264 Placer Sierra Nevada. About 15 miles southeast of Interstate Highway #80 at Soda Springs on the trail to Upper Sheep Valley. 2133 Comment
  CAS-BOT-BC87770  Streptanthus tortuosus J. F. Emmel 1969-7-18 189 Placer Ridge between Mount Judah and Sugar Bowl near Donner Pass. 2225 Comment
  SCFS11529144  Streptanthus tortuosus E. Krimmel, F. Felix 2013-6-2 Placer NFAm top of Foresthill Road, growing in rocks Comment
  SCFS1190  Streptanthus tortuosus E. Krimmel 2014-4-21 Placer NFAm. Farthest rocky outcrop on Point Mariah Comment
  UCD22381  Streptanthus tortuosus Beth Lowe Corbin 1982-8-11 320 Placer 1 3/4 miles SW of Onion Creek Campground. SE facing slope, 45% incline. Occasional. Full sun. Open, rock outcrop in montane chaparral. Flowers dried, whitish. 1920 Comment
  UCD22382  Streptanthus tortuosus Rex Palmer 1979-6-19 N 259 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22383  Streptanthus tortuosus Rex Palmer 1979-6-19 N 249 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22384  Streptanthus tortuosus Rex Palmer 1979-6-19 N 231 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD137400  Symphoricarpos Beth Lowe Corbin 1982-8-3 199 Placer Hill west of Onion Creek Campground. 1853 Comment
  UCD22160  Symphoricarpos Beth Lowe Corbin 1982-8-3 199 Placer Hill west of Onion Creek Campground. 1853 Comment
  CAS-BOT-BC215295  Symphoricarpos mollis F. Almeda 1993-7-25 7302 Placer Soda Springs in the Sierra Nevada about 15 miles from Interstate Hwy #80 due SE of Donner Pass 1920 Comment
  CAS-BOT-BC98479  Symphyotrichum spathulatum H. M. Hall 12888 Placer Summit Station 2121 Comment
  CAS-BOT-BC98480  Symphyotrichum spathulatum H. M. Hall 12888 Placer Summit Station 2121 Comment
  UC893297  Symphyotrichum spathulatum A. A. Heller 12888 Placer Summit Station 2121 Comment
  UCD21698  Symphyotrichum spathulatum Beth Lowe Corbin 1982-8-3 183 Placer Onion Creek campground. In wet meadow. Perennial with rhizomes. Ray flowers purple, disc yellow. Full sun. SW slope. Locally abundant. 1841 Comment
  CHSC68043  Taraxacum officinale James D. Jokerst 1986-7-13 2700 Placer Trail from the Cedars, high Sierra Nevada SW of Donner Lake, camp area. Comment
  UCD21791  Taraxacum officinale Beth Lowe Corbin 1982-8-20 399 Placer 3/4 mile NW of Onion Creek campground. In fine, sandy, damp soil along old road through meadow. Ray flowers yellow. Milky sap. Partial sun. SW facing slope, 15% incline. 2072 Comment
  UCD21792  Taraxacum officinale Rex Palmer 1979-5-27 N 51 Placer Headwaters basin area of the North Fork of the American River Comment
  CAS-BOT-BC392405  Thalictrum fendleri F. Almeda 1993-7-24 7274 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  SCFS1201  Thalictrum fendleri E. Krimmel, F. Felix 2013-7-28 Placer North Fork American River, below Soda Springs Road on Swimming Hole Trail in damp woods. Stop #1 Comment
  UCD22194  Thalictrum fendleri Beth Lowe Corbin 1982-8-6 272 Placer 1/3 mile W of Onion Creek Campground. S facing slope, 30% incline. Uncommon. Partial sun. In rocky, fine, sandy soil about 10 yards from stream in mixed conifer forest. Herb 2 1/2 ft tall. Fruit green. 1920 Comment
  UCD22195  Thalictrum fendleri Rex Palmer 1979-6-20 N 338 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22385  Thysanocarpus curvipes Rex Palmer 1979-6-19 N 375 Placer Headwaters basin area of the North Fork of the American River Comment
  SCFS1132  Toxicoscordion venenosum E. Krimmel 2014-4-21 Placer NFAm. 300 ft above the river on the north ridge coming down from Pt. Mariah Comment
  UCD22061  Toxicoscordion venenosum var. venenosum Rex Palmer 1979-6-19 N 228 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22062  Toxicoscordion venenosum var. venenosum Rex Palmer 1979-6-19 N 255 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22063  Toxicoscordion venenosum var. venenosum Beth Lowe Corbin 1982-8-9 280 Placer 1/3 mile SW of Onion Creek Campground. 1856 Comment
  UCD21793  Tragopogon dubius Beth Lowe Corbin 1982-8-13 348 Placer 1/4 mile W of The Cedars. 1737 Comment
  SFV8496  Trichostema oblongum J. M. Tucker 1975-7-28 4352 Placer Sierra Nevada About 100 yards west of the road in to "The Cedars," private river holding on the upper North Fork of the American River, about 6 miles (airline) south of Soda Springs (Nevada County). 1799 Comment
  UCD22022  Trichostema oblongum Beth Lowe Corbin 1982-8-9 274 Placer 1/4 mile SW of Onion Creek campground. 1859 Comment
  UCD22006  Trifolium cyathiferum Beth Lowe Corbin 1982-8-11 325 Placer 1.5 miles WNW of Onion Creek campground. 1950 Comment
  UCD22008  Trifolium cyathiferum Rex Palmer 1979-7-9 N 449 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD111275  Trifolium longipes R. Tofsrud 1951-7-11 s.n. Placer Ice Lake, 4 mi. S of Soda Springs. Comment
  UCD22002  Trifolium longipes Beth Lowe Corbin 1982-8-17 359 Placer 2 2/3 miles WSW of The Cedars. Small meadow in White Fir forest. Flowers white. Perennial. Mostly sun. N slope, 10% incline. Locally abundant. 1935 Comment
  UCD22007  Trifolium longipes Rex Palmer 1979-6-9 N 179 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22004  Trifolium microcephalum Beth Lowe Corbin 1982-8-13 342 Placer 1 mile west of The Cedars. Meadowy slope in White Fir forest. Annual. Flowers bluish. Partial sun. West facing slope, 20% incline. Locally common. 1645 Comment
  UCD22003  Trifolium monanthum subsp. parvum Beth Lowe Corbin 1982-8-13 343 Placer 1 mile west of The Cedars. Meadowy slope in White Fir forest. Perennial. Flowers white, keel purple tipped. Partial sun. West facing slope, 20% incline. Locally common. 1645 Comment
  UCD22009  Trifolium monanthum subsp. parvum Rex Palmer 1979-7-9 N 447 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22005  Trifolium productum Beth Lowe Corbin 1982-8-17 361 Placer 2 2/3 miles WSW of The Cedars. In grassy area of White Fir forest. Flowers pale pink purple, with darker purple banner, white keel. Perennial. Partial sun. N facing slope, 10% incline. Common. 1935 Comment
  UCD22086  Trifolium variegatum var. geminiflorum Rex Palmer 1979-6-19 N 218 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22215  Trisetum projectum Beth Lowe Corbin 1982-8-3 191 Placer Onion Creek Campground. SW facing slope. Uncommon. Mostly sun. In fine, sandy, granitic soil of disturbed area along roadside, near seep in white fir forest. Perennial. 1841 Comment
  SACT002457  Trisetum spicatum D. Meyer 1984-7-15 Placer Opening in forest canopy. 3.5 km from lodge. 1909.0 Comment
  UCD22214  Trisetum spicatum Beth Lowe Corbin 1982-8-18 369 Placer 5/6 mile SW of The Cedars. NW facing slope, 10% incline. Frequent. Full sun. In rocky, sandy, granitic soil of montane chaparral. Perennial forming small bunches. 1841 Comment
  SACT002450  Trisetum spicatum var. projectum Michael Baad 1976-7-22 Placer Northwest face of Lyon Peak to crest. 10 miles southwest of Soda Springs. 2377.0 Comment
  UCD22036  Triteleia hyacinthina Beth Lowe Corbin 1982-8-3 189 Placer Onion Creek Campground. 1841 Comment
  UCD22034  Triteleia ixioides Rex Palmer 1979-6-19 N 256 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD22035  Triteleia ixioides Rex Palmer 1979-6-9 N 178 Placer Headwaters basin area of the North Fork of the American River. Onion Creek Meadow. Comment
  SCFS1191  Triteleia ixioides subsp. anilina E. Krimmel 2014-4-21 Placer Farthest rocky outcrop on Point Mariah Comment
  UCD22037  Triteleia ixioides subsp. anilina Beth Lowe Corbin 1982-8-4 232 Placer 1/2 mile NNW of Onion Creek Campground. 2072 Comment
  UCD22213  Triticum aestivum Beth Lowe Corbin 1982-8-17 353 Placer 2.5 miles WSW of The Cedars. NW facing slope, 25% incline. Locally common. Full sun. Along logging road in white fir forest, apparently sown for erosion control. Culm and foliage green. 1920 Comment
  UCD23236  Tsuga mertensiana Beth Lowe Corbin 1982-8-23 410 Placer 2 miles southwest of The Cedars. 2133 Comment
  UCD21675  Urtica dioica subsp. holosericea Beth Lowe Corbin 1982-8-25 421 Placer Onion Creek campground. 1841 Comment
  UCD21629  Valeriana Rex Palmer 1979-6-20 N 303 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD22059  Veratrum californicum var. californicum Beth Lowe Corbin 1982-8-19 379 Placer 1 1/2 miles south of The Cedars. 1859 Comment
  UCD22060  Veratrum californicum var. californicum Rex Palmer 1979-7-25 N 811 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21914  Verbascum thapsus Beth Lowe Corbin 1982-8-19 391 Placer 1 mile SSW of The Cedars.Skid trail in logged White Fir forest. 1813 Comment
  SCFS1175  Verbena E. Krimmel, Michael Hamilton 2013-8-1 Placer NFAm. In meadow at Chickering. Comment
  UCD21628  Verbena Rex Palmer 1979-7-25 N 810 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21680  Verbena officinalis Beth Lowe Corbin 1982-8-3 181 Placer Onion Creek campground. In fine, sandy, granitic soil. Disturbed ground around a reservoir. Perennial herb 1 1/2 feet high. Flowers purple. Full sun. SW facing slope. Uncommon. 1841 Comment
  UCD21915  Veronica serpyllifolia subsp. humifusa Rex Palmer 1979-6-20 N 339 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21916  Veronica serpyllifolia subsp. humifusa Rex Palmer 1979-6-8 N 117 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21917  Veronica serpyllifolia subsp. humifusa Rex Palmer 1979-7-9 N 453 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21623  Viola bakeri Rex Palmer 1979-6-9 N 156 Placer Headwaters basin area of the North Fork of the American River. 2438 Comment
  UCD21617  Viola glabella Rex Palmer 1979-5-27 N 73 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21618  Viola glabella Rex Palmer 1979-6-19 N 273 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21667  Viola glabella Rex Palmer 1979-6-19 N 273 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21677  Viola glabella Beth Lowe Corbin 1982-8-18 374 Placer 1 1/3 mile SW of The Cedars. 1859 Comment
  UCD21681  Viola glabella Rex Palmer 1979-5-26 N 38 Placer Headwaters basin area of the North Fork of the American River. 1889 Comment
  UCD21626  Viola macloskeyi Rex Palmer 1979-7-11 N 532 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21627  Viola macloskeyi Rex Palmer 1979-6-21 N 430 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21676  Viola macloskeyi Beth Lowe Corbin 1982-8-19 387 Placer 1.5 mile south of the Cedars. 1920 Comment
  UCD21621  Viola pinetorum subsp. pinetorum Rex Palmer 1979-6-19 N 210 Placer Headwaters basin area of the North Fork of the American River. Comment
  SCFS1198  Viola purpurea E. Krimmel 2014-4-21 Placer Point Mariah. Comment
  UCD21619  Viola purpurea Rex Palmer 1979-5-27 N 43 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21620  Viola purpurea Rex Palmer 1979-6-21 N 369 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21658  Viola purpurea Rex Palmer 1979-6-21 N 383 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21622  Viola purpurea subsp. integrifolia Rex Palmer 1979-6-21 N 429 Placer Headwaters basin area of the North Fork of the American River Comment
  UCD21679  Viola purpurea subsp. mesophyta Beth Lowe Corbin 1982-8-4 231 Placer 1/2 mile NNW of Onion Creek campground. 2072 Comment
  UCD21624  Viola sheltonii Rex Palmer 1979-5-27 N 42 Placer Headwaters basin area of the North Fork of the American River. 1889 Comment
  UCD21625  Viola sheltonii Rex Palmer 1979-5-26 N 24 Placer Headwaters basin area of the North Fork of the American River. Comment
  UCD21678  Viola sheltonii Beth Lowe Corbin 1982-8-16 350 Placer 1/4 mile NW of The Cedars. 1828 Comment
  CAS-BOT-BC383536  Wyethia mollis F. Almeda 1993-7-24 7281 Placer About 15 miles SE of Interstate Hwy #80 at Soda Springs on the trail to Upper Sheep Valley 2134 Comment
  UCD21795  Wyethia mollis Beth Lowe Corbin 1982-8-19 383 Placer 2 miles south of The Cedars. 2148 Comment
  UCD21796  Wyethia mollis Rex Palmer 1979-6-9 N 129 Placer Headwaters basin area of the North Fork of the American River. Mt. Lincoln. Comment



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