Search Results — 2000 specimen records retrieved (1378 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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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  JEPS83904  Abies amabilis Stephen K. Langer with Charles S. Rand 1988-6-21 Siskiyou 6.5 mi e Cook and Greene Pass (300 to 400 yards w of main spruce stand); White Mountain, Rogue River National Forest 1983 1645 Comment
  RSA184700  Abies concolor Gilbert Muth 1966-8-3 494 Siskiyou Marble Valley Meadow, Marble Mtns. 1793 Comment
  SD75844  Abies concolor Darley F. Howe 1969-9-12 Siskiyou Siskiyou Mountains, west side of Grayback 1525 Comment
Read comments
Jul 10 2010
  CHSC97952  Abies lasiocarpa J. O. Sawyer 1968-7-10 499 Siskiyou On trail to South Sugar Lake. 1981 Comment
  HSC5001  Abies lasiocarpa J. O. Sawyer 1969-8-2 1696 Siskiyou Slopes W of Little Duck Lake 2226 Comment
  CAS-BOT-BC78106  Abies magnifica Doris K. Kildale 1929-7-20 8610 Siskiyou South east spur Preston Peak 1950 Comment
  CAS-BOT-BC73464  Abies procera Eugene L. Parker 1961-9-16 s.n. Siskiyou Near summit of Copper Butte on dividing line between Rogue River & Klamath Nat. forests. 1943 Comment
  CLARK-A1528-1053  Acer circinatum John C. Roos 1939-7-5 1520 Siskiyou 990 Comment
  UC1505812  Acer glabrum var. glabrum Robert T. Clausen and Harold Trapido 1940-7-26 4959 Siskiyou canyon of Mud Creek So. Cascade Mts., Sacramento River Basin, Mt. Shasta (Sacramento River Basin, So. Cascade Mts.) 1493 Comment
  HSC2804  Acer macrophyllum C. B. Wolf 1927-8-26 1037 Siskiyou Along Klamath River, 4 mi. N of Gottville Comment
  JEPS42664  Acer macrophyllum Geo. D. Butler 1909-5-31 767 Siskiyou Humbug Comment
  CAS-BOT-BC336933  Acer negundo var. californicum J. H. Thomas; T. C. Fuller; G. D. Barbe 1980-4-29 53405 Siskiyou Fort Jones 853 Comment
  HSC58874  Achillea millefolium Marvin Butler 1971-7-19 155 Siskiyou Near Mary's Meadow, close to the town of Cave Junction 1220 Comment
  HSC76955  Achillea millefolium K. T. Stillman 1976-7-15 251 Siskiyou Marble Mtn. Wilderness Area 1951 Comment
  RSA12486  Achillea millefolium Carl B. Wolf 1934-7-4 5951 Siskiyou 6.8 miles from Dry Lake lookout on road to Horse Creek, Siskiyou Mountains. 1829 Comment
  UC1483522  Achillea millefolium Maralyn A. Renner 1980-6-9 856 Siskiyou ridge se F.S. Road 45N35; Klamath National Forest, Yreka Quad. 1341 Comment
  HSC30339  Achillea millefolium Dale R. Gradek 1974-5-25 47 Siskiyou On Road Eight, 0.9 miles from junction with Hwy. 3 Comment
  JEPS82714  Achlys triphylla subsp. triphylla Wayne Roderick 1973-7-10 Siskiyou Doe Flat 1143 Comment
  JEPS46215  Achlys triphylla subsp. triphylla A. E. Wieslander 1928-6-14 Siskiyou Cedar Camp Comment
  CHSC8610  Achnatherum latiglume G. Smalley 1967-7-7 Siskiyou Collected ca. 10 miles e of Etna. 1402 Comment
  CAS-BOT-BC210717  Achnatherum lemmonii Geo. D. Butler 1909-6-4 810 Siskiyou Near Yreka Comment
  CAS-BOT-BC216925  Achnatherum occidentale A. A. Heller 1916-6-22 12427 Siskiyou Near Black Butte N of Sisson 1097 Comment
  CAS-BOT-BC216928  Achnatherum occidentale Doris K. Kildale 1928-7-4 5512 Siskiyou Summit of divide between Saywers Bar and Etna Comment
  CAS-BOT-BC210873  Achnatherum occidentale subsp. californicum Wm. Bridge Cooke 1938-7-15 11276 Siskiyou Mount Shasta. Wagon Camp-Horse Camp Trail Comment
  RSA184786  Achnatherum occidentale subsp. occidentale Gilbert Muth 1966-7-25 454 Siskiyou Marble Rim, Marble Mountains 2073 Comment
  UCD51439  Achnatherum thurberianum L. Whitney 1934-6-27 s.n. Siskiyou 30 miles SW of Tennant. 1371 Comment
  JEPS107489  Achyrachaena mollis Lowell Ahart, John Dittes 2005-6-10 12113 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  CHSC86677  Acmispon denticulatus Jenny Marr 1993-7-1 60 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC100269  Aconitum columbianum J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13059 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2003 Comment
  CAS-BOT-BC391505  Aconitum columbianum subsp. columbianum E. B. Copeland 1903-8-13 3890 Siskiyou Sisson Comment
  CAS-BOT-BC391508  Aconitum columbianum subsp. columbianum John Thomas Howell 1937-7-22 13323 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC391511  Aconitum columbianum subsp. columbianum A. A. Heller 1915-8-26 12240 Siskiyou Mt Eddy 1828 Comment
  CAS-BOT-BC391517  Aconitum columbianum subsp. columbianum Alice Eastwood 1912-7-16 1129 Siskiyou McCloud Comment
  CAS-BOT-BC391535  Aconitum columbianum subsp. columbianum A. A. Heller 1915-8-26 12240 Siskiyou Mt. Eddy 1828 Comment
  CAS-BOT-BC391538  Aconitum columbianum subsp. columbianum Wayne Roderick 1967-7-28 s.n. Siskiyou At head of Gumboot Lake, s.w. of Mt. Eddy 1828 Comment
  HSC92159  Aconitum columbianum subsp. columbianum Jennifer Whipple 1976-7-8 1352 Siskiyou Along drainage into SW side of Dobkins Lake 2195 Comment
  CAS-BOT-BC413844  Aconogonon davisiae Alice Eastwood 1921-7-29 10957 Siskiyou Little Mt. Hoffman Comment
  CHSC99992  Aconogonon davisiae L. P. Janeway 2008-7-26 9504 Siskiyou Klamath Ranges. Between Castle Crags, Trinity Mountains, and The Eddys; about 200 m west-southwest of Heart Lake and about 0.8 km south of Castle Lake. 1859 Comment
  SJSU10647  Aconogonon newberryi C. L. Kline 1965-7-13 201 Siskiyou above Horse Camp on S slope Mt Shasta 2468 Comment
  CAS-BOT-BC418818  Aconogonon phytolaccifolium Geo. D. Butler 1910-7-8 1674 Siskiyou Upper Campbell Lake 1676 Comment
  HSC86554  Aconogonon phytolaccifolium D. K. Imper 1987-7-23 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  CAS-BOT-BC418815  Aconogonon phytolaccifolium Doris K. Kildale 1928-8-20 6607 Siskiyou Lily Pad Lake, near Hancock Lookout on trail to Marble Mountain Comment
  HSC30500  Aconogonon phytolaccifolium Frederick W. Oettinger, R. F. Thorne 1969-8-7 1274 Siskiyou Marble Mtn. Wilderness Area, SE side of English Lake 1829 Comment
  CAS-BOT-BC391705  Actaea rubra Doris K. Kildale 1928-8-18 6494 Siskiyou Near head of north fork of Salmon River at Finley's Upper Camp Comment
  UC618887  Actaea rubra W. Bridge Cooke 1938-8-19 11530 Siskiyou Big Bear Springs meadow and Sisson Southern Trail Spring (6500 ft) Mt. Shasta Comment
  CAS-BOT-BC391708  Actaea rubra L. E. Smith 1914-9-1 757 Siskiyou Castle Lake Comment
  HSC93000  Adiantum aleuticum Jennifer Whipple 1976-8-20 1723 Siskiyou Wagon Creek Drainage near Wagon Creek 2195 Comment
  UC401267  Adiantum aleuticum unknown Siskiyou Mt Shasta Comment
  CDA1639  Aegilops cylindrica Hunt 1939-8-11 s.n. Siskiyou 0 Comment
  CHSC114933  Aegilops cylindrica D. B. Joley 1976-6-24 1 Siskiyou Montague. Comment
  SD88560  Agastache urticifolia Darley F. Howe 1972-7-6 Siskiyou 1.3 miles south of Oregon state line on road to Happy Camp 1646 Comment
  CAS-BOT-BC29456  Ageratina occidentalis Doris K. Kildale 1928-8-18 6414 Siskiyou North Fork Salmon River at Trinity Camp Comment
  CDA296  Ageratina occidentalis S. Davis, F. D. Horn 1979-8-24 Siskiyou Hotlum Road above railroad tracks, northeast of Weed. 0 Comment
  CAS-BOT-BC15484  Agoseris X dasycarpa Alice Eastwood 1921-7-28 10880 Siskiyou Medicine Lake Comment
  RSA238753  Agoseris aurantiaca var. aurantiaca Frederick W. Oettinger 1968-8-14 518 Siskiyou Bear Meadow,' mid-way, as the crow flies, between Tom Taylor Cabin and English Peak lookout. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  UC163890  Agoseris grandiflora var. grandiflora Geo. D. Butler 1909-6-4 761 Siskiyou Yreka Comment
  CAS-BOT-BC22771  Agoseris heterophylla Elmer I. Applegate 1936-5-19 10322 Siskiyou Lava Beds National Monument, between Indian Wells and Three Sisters. Comment
  HSC67989  Agoseris heterophylla J. P. Smith 1974-5-25 7374 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  JEPS36301  Agoseris retrorsa W. L. Jepson Jul 17 1902-Jul 22 1902 2098 Siskiyou Devil's Backbone; Western Siskiyou, Devil's Backbone 1828 Comment
Read comments
Jul 6 2010
  UC891276  Agoseris retrorsa Alice Eastwood 1912-7-17 1171 Siskiyou Sisson Comment
  CAS-BOT-BC127486  Agrostis capillaris W. B. Cooke; V. G. Cooke 1963-7-12 34335 Siskiyou Mount Shasta, along Memorial Highway. 1371 Comment
  CAS-BOT-BC126994  Agrostis exarata Melissa A. Berry 1957-7-8 s.n. Siskiyou North Fork of the Salmon River, old Aromas Mine road. 609 Comment
  HSC26893  Agrostis exarata J. P. Smith, J. O. Sawyer 1971-9-17 4787 Siskiyou On trail up to Little Duck lake 1829 Comment
  HSC39909  Agrostis gigantea J. P. Smith, Steve Selva 1970-7-16 4376 Siskiyou Along Klamath River, 2 mi. W of Seiad Creek 518 Comment
  JEPS84087  Agrostis idahoensis L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6340 Siskiyou ca 7 mi nne Seiad Valley (sw of Cook and Green Pass, ca 0.5 mi se of Red Butte) 1730 Comment
  JEPS88997  Agrostis idahoensis Julie Kierstead 1992-9-5 92063 Siskiyou Modoc National Forest, at e end of Medicine Lake Medicine Lake; Modoc National Forest, Medicine Lake 2042 Comment
  SEINET7594039 Image available Agrostis idahoensis F. W. Oettinger 1968-9-7 765 Siskiyou W. Siskiyou County, Tobacco Lake, Salmon Mountains 1890 Comment
  CAS-BOT-BC139138  Agrostis oregonensis Alice Eastwood 1921-7-25 10834 Siskiyou Bigelows McCloud River. Comment
  RSA384953  Agrostis pallens M. B. Dunkle 9324 Siskiyou Marble Mountains. 2439 Comment
  CDA28159  Agrostis scabra T. C. Fuller, Don Shaw 1974-9-24 20033 Siskiyou Pacific Crest Trail, summit of the Siskiyou Mountains, east of White Mountain. 0 Comment
  HSC30450  Agrostis thurberiana Frederick W. Oettinger, R. F. Thorne 1969-8-6 1243 Siskiyou Marble Mtn. Wilderness Area, Pine Lake 1883 Comment
  RSA186327  Agrostis variabilis Gilbert Muth 1966-10-16 18 Siskiyou Marble Mountain. 1793 Comment
  SDSU11452  Alisma triviale D. F Howe 1972-7-8 4881 Siskiyou 1524 Comment
  HSC33999  Allium bolanderi var. bolanderi J. P. Smith 1974-5-25 7501 Siskiyou Along Rd. 8, 2.4 mi. W of its junction with Hwy. 3 976 Comment
  UC357193  Allium bolanderi var. bolanderi Geo. D. Butler 1908-6-29 113 Siskiyou near Oro Fino Comment
  HSC39467  Allium bolanderi var. mirabile J. P. Smith, Steve Selva 1970-6-15 Siskiyou Between Forks of Salmon and Cecilville. Comment
  CAS-BOT-BC469242  Allium falcifolium Roxana S. Ferris; Laura Lorraine 1948-6-12 11716 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], east fork of Scott River Comment
  SEINET10839450  Allium falcifolium Mary Susan Taylor 1980-7-8 Taylor 3111 Siskiyou T39N R5W se sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on ridge S of Castle Lake, above Hearts Lake. 2017 Comment
  SEINET12048266  Allium falcifolium M. Ownbey, Brown, D. H. 1941-1 2427 Siskiyou SW of McKinley Mountain, W of Yreka Comment
  RSA60650  Allium parvum Dorothy Parker 1946-4-11 122 Siskiyou Plowman s Valley. 1189 Comment
  CAS-BOT-BC478029  Allium validum Geo. D. Butler 1910-6-19 1577 Siskiyou Wet meadows, Goosenest foothills 1524 Comment
  JEPS59060  Allotropa virgata Willis L. Jepson 1894-8-4 14651 Siskiyou Mt. Shasta Comment
  CAS-BOT-BC171404  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou in vicinity of cabin, lower Red Rock Valley, Marble Mountain Wilderness Area 1493 Comment
  RSA452798  Alnus rhombifolia B. C. Templeton 1957-6-22 s.n. Siskiyou Along the Scott River, noth of Callahan Comment
  HSC96879  Alnus viridis subsp. sinuata Gordon Leppig 1998-7-10 917 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 671 Comment
  LA204106  Alnus viridis subsp. sinuata Wm. Bridge Cooke; 1939-8-10 13862 Siskiyou Mount Shasta, around the springs on the walls of Mud Creek Canyon 2133 Comment
  CAS-BOT-BC138103  Alopecurus aequalis var. aequalis Geo. D. Butler 1910-8-13 1837 1/2 Siskiyou Oro Fino Creek. Comment
  RSA52438  Alyssum alyssoides Dorothy Parker 1948-6-12 s.n. Siskiyou Siskiyou County: Parker Ranch, Plowman s Valley Comment
  JEPS54309  Amaranthus hybridus Geo. D. Butler 1908-7-13 543 Siskiyou near Yreka ( garden on Butler's ranch) Comment
  HSC44718  Amelanchier alnifolia var. pumila J. O. Sawyer, E. Cope 1977-6-18 2911 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  HSC4954  Amelanchier pallida J. O. Sawyer 1968-9-28 735 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  CAS-BOT-BC136894  Amelanchier utahensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11800 Siskiyou Scott Mt. Rd. so. of Callahan 1463 Comment
  HSC101562  Amelanchier utahensis J. P. Smith, J. O. Sawyer 2010-5-6 12818 Siskiyou 732 Comment
  UCR17262  Amelanchier utahensis Frank C. Vasek 1975-6-29 750629- 06 Siskiyou Gazelle Summit, 11.6 mi SW of Gazelle Comment
  CHSC88371  Amphiscirpus nevadensis Jenny Marr 1993-7-1 177 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC64003  Amsinckia intermedia J. P. Smith 1976-5-4 8661 Siskiyou E boundary of Klamath National Forest along Hwy. 96, above Klamath River 610 Comment
  UC24604 Image available Amsinckia intermedia T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  JEPS107482  Amsinckia menziesii var. menziesii Lowell Ahart, John Dittes 2005-6-9 12046 Siskiyou Along the west side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  CAS-BOT-BC45217  Anaphalis margaritacea Louis C. Wheeler 1934-8-14 3120 Siskiyou 1 mile west of White Mountain, Siskiyou Mountains 1920 Comment
  RSA238884  Anaphalis margaritacea Frederick W. Oettinger 1969-8-15 1382 Siskiyou North of Upper English lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1776 Comment
  SEINET8379680  Andersonglossum occidentale L. E. Detling 1947-6-3 6058 Siskiyou Hapy Camp, Klamth National Forest. 335 Comment
  CAS-BOT-BC391795  Anemone deltoidea Geo. D. Butler 1910-7-9 1713 Siskiyou Marble Mountain 1676 Comment
  HSC68434  Anemone deltoidea Maralyn A. Renner 1980-7-5 1500 Siskiyou Doe Flat 1220 Comment
  CAS-BOT-BC391798  Anemone deltoidea Gilbert Muth 1965-8-3 s.n. Siskiyou Pothole in Marble, Marble Valley Comment
  HSC18011  Anemone deltoidea Dorothy Parker 1949-7-10 346 Siskiyou 2 mi. from summit of Salmon Mtn. Comment
  SEINET8664276  Anemone deltoidea W. Roderick 1967-7-23 s.n. Siskiyou O'Brien-Happy Camp Road, ca 15 miles from Happy Camp. 1219 Comment
  CAS-BOT-BC391859  Anemone drummondii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou West side of Gumboot Lake, Trinity Mts. 1828 Comment
  HSC22418  Anemone lyallii J. O. Sawyer 1969-7-3 1047 Siskiyou Near Lipstick Lake 1951 Comment
  RSA78842  Anemone lyallii P. A. Munz 1952-7-2 17891 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1524 Comment
  JEPS17315  Anemone occidentalis unknown 1862-9-16 1419 Siskiyou Mt. Shasta 2438 Comment
  UC609339  Anemone occidentalis Eleanor Burks Hart 1938-8-18 912 Siskiyou Boulder Peak 2529 Comment
  UC8931  Anemone occidentalis Harley P. Chandler June, 1901 1637 Siskiyou ridges & meadows near Marble Mt.; North Coast Ranges 2133 Comment
  RSA238273  Anemone occidentalis Frederick W. Oettinger 1967-7-25 182 Siskiyou Ridge SSE of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2223 Comment
  JEPS14076  Angelica arguta W. L. Jepson 1937-7-30 18564 Siskiyou Siskiyou Mountains, Poker Flat, headwaters of Indian Creek Poker Flat; Siskiyou Mountains, Poker Flat 1584 Comment
  UC1222616  Angelica arguta Joseph P. Tracy 1951-6-16 19486 Siskiyou near State line (summit of the Siskiyous, at crossing of the Takilma-Happy Camp Road); the Siskiyous, Takilma-Happy Camp Road Comment
  SFV8562  Angelica arguta J. M. Tucker, L. K. Mann 1963-7-4 3697 Siskiyou Vicinity of U. S. Forest Service Public Camp, just east of Finley Camp, road from Etna to Sawyer's Bar. Comment
  UCD127105  Angelica arguta R. Tofsrud 1948-8-3 s.n. Siskiyou Siskiyou-Del Norte (Oregon) County Line: Summit of Happy Camp, Waldo (Oregon) Road. 1554 Comment
  RSA237409  Angelica tomentosa var. tomentosa Frederick W. Oettinger 1968-8-14 514 Siskiyou 0.1 mile east of Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  HSC28214  Anisocarpus madioides Carl W. Mize 1972-6-23 97 Siskiyou Along trail down from Camp Three 427 Comment
  CHSC71467  Antennaria geyeri Vernon H. Oswald; Lowell Ahart 1998-7-21 9312 Siskiyou Shasta NF plantation on the west side of Hwy. 97 2.2 mi northeast of Lake Shastina-Big Springs Rd. northeast of Weed. 975 Comment
  UC579119  Antennaria geyeri J. William Thompson 1936-7-8 13158 Siskiyou Lava Beds National Monument Comment
  UCR51806  Antennaria geyeri J. W. Thompson 1936-7-8 13158 Siskiyou Lava Bed National Monument Comment
  UCSB63907  Antennaria geyeri Oswald, Vernon; Ahart, Lowell 1997-7-28 Siskiyou Forest Route 15 ca. 1 mi. south of Harris Spring; T42N R2E Sect. 31 1463 Comment
  UC165971  Antennaria howellii subsp. howellii Geo. D. Butler 1909-7-15 954 Siskiyou Highland Mine Comment
  JEPS82731  Antennaria howellii subsp. howellii Wayne Roderick 1983-7-8 Siskiyou on n-facing slope Cook and Green Pass 1432 Comment
  UC60986  Antennaria media Geo. B. Grant 1902-9-1 5113 Siskiyou Horse Camp Mt Shasta 2438 Comment
  RSA238789  Antennaria racemosa Frederick W. Oettinger 1968-9-1 654 Siskiyou Dry ridge above Abbotts Lake basin , Mtn Hemlock Subtype ad Red Fir Forest. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1982 Comment
  POM230556  Antennaria rosea J. T. Howell 1937-7-21 13177 Siskiyou S Fork of Salmon river near Big Flat. 1524 Comment
  UC29519  Antennaria rosea C. B. Bradley 1879-1 Siskiyou Comment
  HSC77074  Antennaria rosea subsp. rosea K. T. Stillman 1976-6-26 108 Siskiyou Marble Mountain Wilderness Area 2073 Comment
  JEPS5337  Antirrhinum vexillocalyculatum subsp. breweri Geo. D. Butler 1908-8-30 2 Siskiyou near Fort Jones (on the light hill grade) 762 Comment
  JEPS80555  Apocynum androsaemifolium Gilbert Muth 1965-8-6 191 Siskiyou trail backside of Black Mt.; Marble Mt. Wilderness Area, Black Mt. 1920 Comment
  HSC28654  Apocynum androsaemifolium Frederick W. Oettinger 1968-8-19 583 Siskiyou High Lake Basins, in the vicinity of English Peak Marble Mtn. Wilderness Area, in Crapo Peak along trail between Tom Taylor Cabin and English Peak. 2134 Comment
  HSC3211  Apocynum androsaemifolium Geo. D. Butler 1908-9-6 78 Siskiyou Butler Ranch, near Yreka. Comment
  UCSB6038  Apocynum androsaemifolium Myrick, Donald 1964-7-25 Siskiyou Along Shasta Ski Bowl Highway 1219 Comment
  CAS-BOT-BC394977  Aquilegia formosa John Thomas Howell 1937-7-24 13388 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  UC166050  Aquilegia formosa Geo. D. Butler 1908-8-9 352 Siskiyou s Marble Valley (hillside) 1828 Comment
  SD98958  Aquilegia formosa Darley F. Howe 1977-7-1 Siskiyou Scott Mt. Creek, Scott Mts. 1096 Comment
  CHSC1431  Aquilegia formosa var. truncata K. Jaekel 1939-6-30 Siskiyou Mt. Shasta 1219 Comment
  POM99545  Aquilegia formosa var. truncata Geo. D. Butler 1908-7-12 1062 Siskiyou Hundrey Mtn Comment
  HSC103547  Arabis breweri Thomas W. Nelson 2005-5-23 9317 Siskiyou Shoeinhorse Mountain, along Forest Service Road 11, at Deer Creek. 948 Comment
  HSC44739  Arabis breweri var. breweri J. O. Sawyer, E. Cope 1977-6-21 2979 Siskiyou Near Prescott Peak 1677 Comment
  HSC69022  Arabis divaricarpa var. interposita Maralyn A. Renner 1980-7-24 2012 Siskiyou Lily Pad Lake 1768 Comment
  HSC29187  Arabis glabra Frederick W. Oettinger 1969-8-18 1420 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: W side of Horse Range Lake 1829 Comment
  UC1034582  Arabis glabra Douglas Barbe 1955-7-4 94 Siskiyou 9 mi s Etna (at junction of Parrot Mill Rd and French Creek Rd) 944 Comment
  RSA758211  Arabis holboellii R. F. Thorne 1969-8-2 63336 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  HSC44752  Arabis holboellii var. retrofracta J. O. Sawyer 1978-6-19 3247 Siskiyou Marble Mtn. Wilderness Area, trail between Timothy Gulch and Harry Hall Gulch 1433 Comment
  HSC69257  Arabis holboellii var. retrofracta J. O. Sawyer, J. Cole 1980-7-20 3741 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  HSC22439  Arabis holboellii var. retrofracta J. O. Sawyer 1969-7-1 998 Siskiyou SE facing slope above Paynes Lake Creek 1921 Comment
  HSC90626  Arabis holboellii var. retrofracta Jennifer Whipple 1977-7-22 2038 Siskiyou Ridgecrest between Dobkins Lake and Dale Creek drainage Comment
  SEINET3899885  Arabis holboellii var. retrofracta C. Leo Hitchcock, J. P. Martin 1939-7-9 5310 Siskiyou Between King's Castle and Black Mt.; 0 1829 Comment
  RSA237312  Arabis platysperma Frederick W. Oettinger 1967-8-13 261 Siskiyou Southeast of Tom Taylor Cabin and about 50 yards from cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  POM144225  Arabis platysperma var. howellii M. S. Baker 1898-8-7 484 Siskiyou Medicine Lake. Comment
  UC165311  Arabis sparsiflora Geo. D. Butler 1910-5-21 1382 Siskiyou Klamath hills Klamath Comment
  UC1333315  Arabis sparsiflora var. atrorubens Dorothy Parker 1949-5-8 282 Siskiyou Kidder Creek Salmon Mountains Range 914 Comment
  CDA24665  Arabis subpinnatifida G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2642 Siskiyou Schoolhouse Hill, summit of Gazelle/Callahan Road, 11.3 km east of Callahan. Comment
  UC1001157  Arabis subpinnatifida Dorothy Parker 1947-5-30 167 Siskiyou e side Scotts Valley; Siskiyou Mountains 865 Comment
  JEPS53189  Arabis suffrutescens Harley P. Chandler Jun 1901 1678 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  HSC29176  Arabis suffrutescens Frederick W. Oettinger 1968-8-16 540 Siskiyou Marble Mtn. Wilderness Area, W side of Red Hill N of Hancock Lake 2058 Comment
  CAS-BOT-BC171699  Aralia californica J. H. Thomas; H. A. Thomas 1954-7-22 4441 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville, between Rush and Big Bend Creeks, .25 - .5 miles N of S Fork of Salmon river. Along banks of Big Bend Creek. 975 Comment
  UC1174942  Aralia californica P. C. Everett and E. K. Balls 1959-10-24 23942 Siskiyou 6 mi. w. Red Bank F. S. Camp (on rd. to Somes Bar from Sawyers Bar) 609 Comment
  JEPS48993  Arceuthobium Geo. D. Butler 1908-8-4 270 Siskiyou head of Shackleford Creek 1676 Comment
  SEINET2471353  Arceuthobium abietinum R. L. Mathiasen 2007-9-19 2007 -51 Siskiyou Yellow Jacket Ridge on trail to Chimney Rock Lake 1250 Comment
  CAS-BOT-BC407707  Arceuthobium americanum William Bridge Cooke 1941-6-12 16034 Siskiyou On Military Pass on the NE side of Mounta Shasta 1828 Comment
  CAS-BOT-BC407791  Arceuthobium campylopodum William Bridge Cooke 1938-9-2 11593 Siskiyou Sisson Southern Trail, Mount Shasta 1371 Comment
  RSA121383  Arceuthobium campylopodum G. D. Barbe 1955-7-29 314 Siskiyou 0.75 mi E of Scott Mtn Road on road to Big Carmen Lake. 1707 Comment
  UC1286476  Arceuthobium cyanocarpum W. B. and V. G. Cooke 1963-7-10 34280 Siskiyou e of Bolam Creek Rd n side of Mt. Shasta 22 Comment
  SEINET2140004  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-1 2003 -46 Siskiyou On trail to Eaton Lake, Russian Peak Wilderness Area. 1715 Comment
  CAS-BOT-BC102221  Arctium minus Alice Eastwood 1912-7-21 1293 Siskiyou Sisson Comment
  CHSC81495  Arctostaphylos klamathensis Ann Willyard 2000-7-27 513 Siskiyou Scott Mountain, about 0.6 rd mi w of Scott Mountain campground, along Mule Creek Ridge, on the Klamath National Forest.UTM: 10 524359 E 4569675 N. 1676 Comment
  SEINET11989681  Arctostaphylos klamathensis Unknown 1982-1 20804 Siskiyou above uppermost lake above Terrace Lake 1981 Comment
  LA105198  Arctostaphylos manzanita Steve Morgan; 1987-7-28 sn Siskiyou McGinnis Springs, 5 mi. NW of McCloud, Shasta-Trinity National Forest, S of Mt. Shasta Comment
  CAS-BOT-BC40025  Arctostaphylos nevadensis Mrs. H. P. Bracelin 1931-6-19 428 Siskiyou North side of Mt. Eddy, above Metcalf ranch house, N. of Shasta City about 8 miles. 1249 Comment
  CAS-BOT-BC45438  Arctostaphylos nevadensis Ira L. Wiggins 1955-7-27 13559 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area. 2042 Comment
  HSC4920  Arctostaphylos nevadensis J. O. Sawyer 1968-9-28 750 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  HSC91295  Arctostaphylos nevadensis Jennifer Whipple 1976-9-3 1768 Siskiyou Wagon Creek drainage on the E face of Mount Eddy 2256 Comment
  JEPS49538  Arctostaphylos nevadensis W. L. Jepson 1940-6-27 20040 Siskiyou e slope Mt. Shasta 1828 Comment
  RSA68855  Arctostaphylos nevadensis A. E. Culbertson 1943-6-26 101 Siskiyou Castle Lake, 5434, in a north facing cirque with an abrupt 1000' backwall; 14 miles s.w. of Mt. Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. Comment
  CAS-BOT-BC46429  Arctostaphylos patula Doris K. Kildale 1929-4-27 7483 Siskiyou Upper South Fork of Salmon River. Comment
  CAS-BOT-BC46457  Arctostaphylos patula John Thomas Howell 1939-8-3 15021 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC46477  Arctostaphylos patula 1911-6-15 s.n. Siskiyou Jackson Lake. Comment
  CAS-BOT-BC46492  Arctostaphylos patula Lyman Benson 1929-3-26 1068 Siskiyou Shoulder of Mt. Shasta. Comment
  CAS-BOT-BC46496  Arctostaphylos patula Wayne Roderick; Jacob Sigg 1981-8-23 s.n. Siskiyou Cedar Lake. 1767 Comment
  HSC92374  Arctostaphylos patula Jennifer Whipple 1976-7-2 1275 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2195 Comment
  JEPS2745 Image available Arctostaphylos patula Harriet P. Kelley 1914-3-22 Siskiyou Dunsmuir Mt. Shasta Region; Dunsmuir, Mt. Shasta region Comment
  SEINET3106997  Arctostaphylos patula Steve Selva, Roger Jensen 1974-8-16 9 Siskiyou Dry, south facing Chaparral slopes above Sugar Lake. Comment
  UC876449  Arctostaphylos patula Lewis S. Rose 1937-7-25 37596 Siskiyou Mt. Shasta City 1158 Comment
  UCD53415  Arctostaphylos patula A. T. Leiser 1973-3-22 D 2504 Siskiyou Dunsmuir. Comment
  CAS-BOT-BC46957  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1929-5-11 7711 Siskiyou Cecilville, upper s. Fork of Salmon River. Comment
  CAS-BOT-BC47008  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1928-4-2 4404 Siskiyou Klamath River at Somes Bar. Comment
  CAS-BOT-BC47100  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1929-5-31 9155 Siskiyou Cecilville, s. Fork of Salmon River. Comment
  RSA639551  Arctostaphylos viscida subsp. viscida L. C. Wheeler 1952-9-21 6949 Siskiyou [No location data on label.] Comment
  UCR39797  Arenaria congesta K. T. Stillman 1976-6-25 94 Siskiyou Between Marble Gap and Elk Valley Trail Comment
  UC1299493  Arenaria congesta var. suffrutescens Freed W. Hoffman 1950-7-14 3625 Siskiyou Baldy Mountain North Coast Ranges, Baldy Mountain (western Siskiyou County) Comment
  CAS-BOT-BC384755  Arenaria serpyllifolia var. serpyllifolia John Thomas Howell 1937-7-23 13351 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC29302  Arnica amplexicaulis Frederick W. Oettinger 1968-9-1 648 Siskiyou Marble Mtn. Wilderness Area, SSW of Abbotts Lake 1799 Comment
  UC1192167  Arnica chamissonis Calvin McMillan and Malcolm A. Nobs 1949-6-17 798 Siskiyou Highway 97 Grass Lake Comment
  CAS-BOT-BC82249  Arnica chamissonis A. A. Heller 1940-7-23 15757 Siskiyou Grass Lake on U.S. Highway #97 Comment
  RSA505435  Arnica chamissonis subsp. foliosa Rimo Bacigalupi 1957-6-27 5974 Siskiyou Grass lake, on route between Weed and Klamath Falls, 20 miles northeast of Weed 1545 Comment
  UC166179  Arnica cordifolia Geo. D. Butler 1909-4-14 643 Siskiyou Humbug road Comment
  SEINET6774985 Image available Arnica cordifolia G. D. Butler 1910-4-21 1216 Siskiyou Dry hills Oro Fiero [illegible] Comment
  CHSC110956  Arnica dealbata B. Castro; L. P. Janeway 2007-7-29 1667 Siskiyou High Cascade Range. Medicine Lake Highlands; about 0.5 mi W of Medicine Lake, 0.3 mi W on USFS Rd43N48 from its jcn with Rd 43N47 (which is the road to Schonchin Spring). 2075 Comment
  CAS-BOT-BC82554  Arnica discoidea Annie M. Alexander; Louise Kellogg 1948-9-14 5620 Siskiyou Canyon Creek, branch of Scott River 762 Comment
  HSC22127  Arnica discoidea J. O. Sawyer 1969-7-23 1164 Siskiyou Near Horse Range Creek. 1341 Comment
  HSC22144  Arnica discoidea J. O. Sawyer 1969-8-18 1994 Siskiyou Above South Sugar Lake 1829 Comment
  HSC40996  Arnica discoidea J. O. Sawyer 1972-7-14 2473 Siskiyou N Fork of Salmon River 1006 Comment
  UC75810  Arnica nevadensis Milo S. Baker 1898-8-1 502 Siskiyou Medicine Lake Comment
  CAS-BOT-BC384653  Arnica ovata Andrew Townesmith; Karen M. Meyer 2007-7-30 877 Siskiyou Shasta-Trinity National Forest. Off county road A-10, mile 12.6 (from beginning of road in Mount Shasta City), Panther Meadow campground vicinity 2284 Comment
  RSA184712  Arnica parryi subsp. sonnei Gilbert Muth 1966-7-31 476 Siskiyou North side of Black Mountain, Marble Mountains 2058 Comment
  CAS-BOT-BC90083  Arnica viscosa Alice Eastwood 1912-9-1 2055 Siskiyou Mount Shasta Comment
  RSA215638  Artemisia arbuscula subsp. arbuscula Gilbert Muth 1969-8-6 1210 Siskiyou Boulder Peak. 2530 Comment
  RSA211190  Artemisia arctica subsp. arctica William J. Ferlatte 1966-8-5 342 Siskiyou Caribou Mtn., Open granite slopes and ridges. Near summit. 2470 Comment
  LA97822  Artemisia borealis subsp. borealis J. M. Tucker; L. K. Mann, Sandra L. Holloway 1963-8-18 3750 Siskiyou Marble Mountain Wilderness Area, SW ridge of Black Mountain (Black Marble Mountain) 2133 Comment
  CAS-BOT-BC90741  Artemisia ludoviciana subsp. incompta Gilbert Muth 1965-8-18 s.n. Siskiyou [Nort] North side of Black Mountain Comment
  CAS-BOT-BC90783  Artemisia ludoviciana subsp. ludoviciana John Thomas Howell 1939-8-8 15146 Siskiyou Black Mt., Marble Mts. Comment
  JEPS37061  Artemisia tridentata W. L. Jepson 1940-6-23 20022 Siskiyou n of Mt. Shasta Andesite sta. 975 Comment
  CAS-BOT-BC400597  Asarum caudatum J. Aug. Kusche 1914-6-1 s.n. Siskiyou Mt. Shasta Comment
  RSA238018  Asarum caudatum Frederick W. Oettinger, R. F. Thorne 1967-7-26 192 Siskiyou Along trail down to Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  HSC89615  Asarum hartwegii Brian Marston, William Kristan, Reid Storre 1988-3-27 105 Siskiyou 5 mi. S of Somes Bar, Oak Bottom Campground, on Hwy. 99 152 Comment
  SEINET10580346  Asclepias cordifolia E. E. Stanford 1930-6-15 Stanford 1594 Siskiyou Near Shasta City Comment
  SEINET10580360  Asclepias cordifolia Edward L. Greene 1876-6-19 Greene 862 Siskiyou Near Yreka Comment
  UCD121377  Asclepias speciosa K. M. Meyer; A. Townesmith 2007-7-31 173 Siskiyou Shasta-Trinity National Forest. 5.3 mi. on NF Rd. 17, off US Hwy. 97, turn out right before forest rd. 42N19. 1298 Comment
  HSC71077  Aspidotis densa M. A. Baker 1980-6-20 2198 Siskiyou Near Bald Mtn. 1036 Comment
  JEPS94712  Aspidotis densa Vernon H. Oswald and Lowell Ahart 1998-8-3 9448 Siskiyou Rock Fence Lake Road (USFS 41N18) 1.2 mi ne of its intersection with Kangaroo Lake Road (USFS 41N08) (4.9 mi se of Gazelle-Callahan Road); Rock Fence Lake Road (USFS 41N18) 1767 Comment
  CAS-BOT-BC69551  Aspidotis densa Louis C. Wheeler 1934-8-13 3112 Siskiyou E. Fork Horse Creek, Siskiyou Mts. Mt. Diablo Mer. 1981 Comment
  RSA671867  Aster F. R. Schallert 1953-8-10 16999 Siskiyou near Mt. Shasta Comment
  RSA238783  Aster alpigenus Frederick W. Oettinger, R. F. Thorne 1969-8-8 1293 Siskiyou Sundew Bog due E of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CDA6797  Aster novae-angliae T. C. Fuller 1966-10-6 15244 Siskiyou Etna, Scott Valley. 0 Comment
  CDA6798  Aster novae-angliae T. C. Fuller 1966-10-6 15244 Siskiyou Etna, Scott Valley. 0 Comment
  HSC42070  Astragalus californicus Sue Sweet 1977-5-21 70 Siskiyou Junction of Miner's Creek Rd. and Rd. 8, 5.5 mi. W of Callahan on Rd. 8. 1037 Comment
  HSC46226  Astragalus californicus Jennifer Whipple 1978-6-5 2337 Siskiyou Weston Gulch in Scott Valley 854 Comment
  RSA0006722  Astragalus californicus R. C. Barneby 1954-5-16 11518 Siskiyou Scott Bar. 549 Comment
  RSA109723  Astragalus californicus H. D. Ripley, R. C. Barneby, F. C. Ripley Jr. 1948-7-5 9633 Siskiyou 2 miles SW of Yreka. Alt. 2800 ft. Comment
  CAS-BOT-BC187166  Astragalus lentiginosus var. floribundus Alice Eastwood; John Thomas Howell 1940-6-14 8271 Siskiyou Lava Beds Nat. Mon. near Schonchin Butte Comment
  HSC36940  Astragalus lentiginosus var. lentiginosus J. P. Smith 1974-5-27 7611 Siskiyou Along FS Rd. 47N03 1280 Comment
  HSC82565  Astragalus purshii var. lectulus Thomas W. Nelson, Jane P. Nelson 1979-5-26 4725 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  CAS-BOT-BC192980  Astragalus purshii var. tinctus D. M. Traugh 1933-5-22 52 Siskiyou Klamath National Forest. Near Humbug Creek 914 Comment
  RSA47607  Astragalus purshii var. tinctus Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11710 -A Siskiyou Schoolhouse Hill, Plowmans Valley (Noyes Valley), east fork of Scott River. Comment
  CHSC81502  Astragalus whitneyi var. confusus Ann Willyard 2000-6-21 744 Siskiyou On private ranch ca. 3 air mi n Lake Shastina, ca. 3 air mi e Interstate 5; ca. 1 air mi w Hole-in-the-Ground Springs. UTM: 10 547700 E 4602900 N. 792 Comment
  CHSC30658  Astragalus whitneyi var. siskiyouensis M. S. Taylor; W. Overton 1980-7-8 3091 Siskiyou On s side of 40N43, ca. 3 mi w of its jct with 40N26, at w end of Lake Siskiyou. 1432 Comment
  HSC92364  Astragalus whitneyi var. siskiyouensis Jennifer Whipple 1976-6-30 1209 Siskiyou SE slope of Mount Eddy draining into the N fork of the Sacramento River 2256 Comment
  HSC65311  Asyneuma prenanthoides J. P. Smith, Steve Selva 1970-7-15 4340 Siskiyou Klamath National Forest, road to Happy Camp. 732 Comment
  SBBG25846  Asyneuma prenanthoides D. Myrick 1966-8-8 1495 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  SBBG7444  Asyneuma prenanthoides H. and M. Dearing 1939-6-3 3536 Siskiyou near Scott Bar Comment
  HSC41795  Asyneuma prenanthoides Brent Whiteley 1975-6-22 37 Siskiyou Klamath National Forest along Hwy. 96 near Somes Bar. 220 Comment
  CAS-BOT-BC69571  Athyrium alpestre subsp. americanum W. B. C. 1938-9-8 11617 Siskiyou Panther Creek Glacial Meadow, Mount Shasta. More common near Horse Camp. 2590 Comment
  HSC29371  Athyrium distentifolium var. americanum Frederick W. Oettinger 1969-8-21 1476 Siskiyou Marble Mtn. Wilderness Area, Ethel Lake 1738 Comment
  RSA577337  Athyrium filix-femina subsp. cyclosorum L. C. Wheeler 1934-8-21 3190 Siskiyou Siskiyou Mountains, East Fork Horse Creek 1220 Comment
  HSC35800  Athyrium filix-femina var. cyclosorum J. O. Sawyer 1968-7-10 495 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  UC1481842  Athyrium filix-femina var. cyclosorum Milo S. Baker 1926-7-14 23 a-26 Siskiyou 4 1/2 mi along forest rd N Fork Mt. Comment
  CAS-BOT-BC17615  Athysanus pusillus George Dexter Butler 1910-3-27 1145 Siskiyou Near Yreka. Comment
  HSC4340  Atriplex prostrata L. C. Wheeler 1934-10-21 3331 Siskiyou Shasta Valley 4 mi. E of Grenada 869 Comment
  CHSC72232  Atriplex rosea Vernon H. Oswald; Lowell Ahart 1998-9-16 9652 Siskiyou Return leg of the Tour Route at Lower Klamath NWR ca. 2 mi south of Hwy. 161. 1243 Comment
  JEPS117723  Azolla microphylla Lowell Ahart, John Dittes 2010-7-30 16955 Siskiyou Along the west edge of the Shasta River, about 120 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  CHSC35673  Balsamorhiza deltoidea R. E. Preston 1982-5-1 275 Siskiyou Above Irongate Reservoir, ca. 1/2 mi SE of Camp Creek Recreation Area, ca. 20 mi NE of Yreka. 716 Comment
  CHSC477  Barbarea orthoceras M. Yoder 1941-7-6 Siskiyou Castle Lake. 1981 Comment
  RSA237403  Barbarea orthoceras Frederick W. Oettinger 1968-8-23 620 Siskiyou Due west of English Lake; Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CAS-BOT-BC75727  Berberis nervosa Ira L. Wiggins 1955-7-21 13441 Siskiyou Rush Creek Trail 2 miles above Mountain View Ranch. 1097 Comment
  CAS-BOT-BC75928  Berberis piperiana Carl B. Wolf 1933-7-5 5974 Siskiyou 4.7 miles from Oak Knoll Ranger Station on Klamath River, on road to Dry Lake Lookout, Siskiyou Mountains. 1219 Comment
  CAS-BOT-BC75935  Berberis piperiana Geo. D. Butler 1910-4-11 1169 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC169490  Betula occidentalis John Thomas Howell 1964-5-11 40701 Siskiyou Scott Valley between Etna and Callahan Comment
  UC1076038  Betula occidentalis Herbert L. Mason 1947-5-15 14754 Siskiyou nw Edgewood Comment
  JEPS32524  Bidens cernua Geo. D. Butler 1908-9-25 501 Siskiyou between Yreka and Montague Yreka; Shasta River Comment
  CAS-BOT-BC102124  Bidens cernua A. A. Heller 1914-8-26 11718 Siskiyou Deetz Station near Black Butte 1158 Comment
  RSA608433  Bidens cernua L. C. Wheeler 1935-7-3 3648 Siskiyou 2 mi nw of Montague (Shasta River); Shasta River. 761 Comment
  CAS-BOT-BC413073  Bistorta bistortoides Geo. D. Butler 1910-6-5 1477 Siskiyou Shackleford Creek Comment
  CHSC88093  Bistorta bistortoides Jenny Marr 1993-7-1 103 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC41629  Blepharipappus scaber Barbara Kelly 1977-5-21 486 Siskiyou East side of road, Scott Valley. South boundary of Whipple Ranch 884 Comment
  SEINET7379340 Image available Blepharipappus scaber G. D. Butler 1910-5-17 1355 Siskiyou Yreka Comment
  CAS-BOT-BC15794  Boechera acutina Doris K. Kildale 1928-8-20 6623 Siskiyou Hancock Look Out - on trail to Marble Mountain. 2151 Comment
  CAS-BOT-BC16047  Boechera breweri subsp. shastaensis John Thomas Howell 1937-7-22 13265 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC13809  Boechera howellii William Bridge Cooke 1941-8-14 16177 Siskiyou Mount Shasta. Above Horse Camp. 2743 Comment
  UCD114421  Boechera pinetorum Robert E. Preston 1983-6-9 393 Siskiyou On N side of dirt road, ca. 1/8 mi E of jct with road to Juanita Lake. 1304 Comment
  CAS-BOT-BC25413  Boechera retrofracta George Dexter Butler 1910-7-8 1663 Siskiyou Log Lake-Shackleford Creek. 1219 Comment
  CAS-BOT-BC25419  Boechera retrofracta Doris K. Kildale 1928-7-4 5504 Siskiyou Summit of divide between Salmon River and Scott Valley. Comment
  CAS-BOT-BC25424  Boechera retrofracta Marion Ownbey; Ruth P. Ownbey 1938-7-20 1760 Siskiyou 1 mile east of Dry Lake Lookout, summit of the Siskiyou Mountains. Comment
  SEINET3166095  Boechera rollei P. J. Alexander 2008-7-24 873 -C Siskiyou On the Pacific Crest Trail +-0.7 miles SSW of Cook & Green Pass, +-1.9 miles E of Red Butte, +-7miles NNE of Seiad Valley, Siskiyou Mountains, Rogue River National Forest. 1606 Comment
  UC673133  Boechera subpinnatifida Lincoln Constance and Reed C. Rollins 1942-5-14 2923 Siskiyou 4 mi w Yreka (road to Walker Post Office); Klamath-Siskiyou Region 1219 Comment
  CAS-BOT-BC25924  Boechera suffrutescens Alice Eastwood 1921-7-28 10885 Siskiyou Medicine Lake. Comment
  CAS-BOT-BC25919  Boechera suffrutescens C. L. Hitchcock; J. S. Martin 1939-7-6 5224 Siskiyou Peak above and north of Divide of Siskiyou Mountains. On Takilma-Happy Camp road. 1828 Comment
  HSC4949  Boykinia major J. O. Sawyer 1968-7-23 581 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake 1829 Comment
  HSC96288  Boykinia major Gordon Leppig 1998-8-14 1009 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  RSA756939  Boykinia major R. F. Thorne 1969-8-2 63345 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  UC2026462  Boykinia major Louis C. Wheeler 1958-8-21 7419 Siskiyou Siskiyou Mountains. Head of Hell's Canyon. Comment
  HSC29195  Brickellia grandiflora Frederick W. Oettinger 1968-8-23 611 Siskiyou The High Lake Basins near English Peak, Marble Mountain Wilderness Area; cliff base ENE of Diamond Lake 2058 Comment
  CAS-BOT-BC484386  Brodiaea elegans subsp. elegans Donald Myrick 1961-6-21 294 Siskiyou Along Highway 99 just south of Yreka Comment
  CAS-BOT-BC144104  Bromus Gilbert Muth 1966-7-22 434 Siskiyou Marble Mountains. Meadow below Marble Rim. 2011 Comment
  CHSC60566  Bromus carinatus var. carinatus L. P. Janeway 1983-8-16 550 Siskiyou Siskiyou Mountains; at Poker Flat. 1524 Comment
  CAS-BOT-BC148792  Bromus carinatus var. marginatus Elmer I. Applegate 1935-6-10 9480 Siskiyou South slope of Caldwell Butte. Lava Beds National Monument. Comment
  HSC103031  Bromus diandrus J. P. Smith 2014-6-7 13889 Siskiyou Yreka 844 Comment
  UCD58799  Bromus hordeaceus Geo. D. Butler 1909-5-26 819 Siskiyou Field near Yreka. Comment
  SEINET250617 Image available Bromus inermis subsp. inermis Cindy Roche, Robert Korfhage 2005-7-12 Siskiyou Road 1055 milepost 3.3 Cook & Green Road. 1040 Comment
  CAS-BOT-BC162131  Bromus orcuttianus L. E. Smith 1914-7-6 747 Siskiyou Sisson. Comment
  HSC42950  Bromus orcuttianus J. O. Sawyer, Ken Stillman 1976-7-1 2776 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  UCD59078  Bromus orcuttianus R. Tofsrud 1949-8-3 s.n. Siskiyou Soap Creek Ridge between Yreka and Fort Jones. 1828 Comment
  CAS-BOT-BC162137  Bromus orcuttianus W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Mountain. Comment
  RSA239070  Bromus suksdorfii Frederick W. Oettinger 1969-9-2 1588 Siskiyou Above Bear meadow near Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  CDA16171  Bromus tectorum G. F. Hrusa, T. D. Wilfred 1999-5-31 15070 Siskiyou Klamath Ranges; E side of I-5 at Klamath R. rest area +- 10 mi N of Yreka area former homestead, numerous cultivated plants, persisting, no evidence of habitation. With Lupinus albifrons on slope above river, in undisturbed area. Annual, common. 640 Comment
  HSC9353  Bromus tectorum D. M. Thomson 1965-6-12 84 Siskiyou Lava Beds National Monument, Hovey Point Comment
  UC1131290  Bromus tectorum H. A. Jensen 1933-7-29 335 Siskiyou near Metcalf 883 Comment
  CAS-BOT-BC185381  Bromus vulgaris John Thomas Howell 1939-8-5 15067 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  HSC30541  Bromus vulgaris Frederick W. Oettinger, R. F. Thorne 1969-8-6 1246 Siskiyou Salmon Mountains, woods below Pine Lake Basin 1829 Comment
  HSC39661  Bromus vulgaris J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5728 Siskiyou 0.9 mi. S of Sugar Creek on Parrott Mill Rd. 1341 Comment
  HSC68536  Bromus vulgaris Maralyn A. Renner 1980-6-25 1100 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  UCD60229  Bromus vulgaris R. Tofsrud 1948-8-1 s.n. Siskiyou Few mi. N of Happy Camp. Comment
  JEPS20950  Cacaliopsis nardosmia Geo. D. Butler 1909-5-30 760 Siskiyou Humbug Mountain Comment
  UC1265421  Calamagrostis canadensis Frederick W. Oettinger 1969-9-4 1653 Siskiyou below Tobacco Lake W Siskiyou County, Salmon Mountains, Marble Mountain Wildern (high lake basins in vicinity of English Peak) 1889 Comment
  RSA22159  Calamagrostis koelerioides J. T. Howell 1937-7-25 13451 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  CAS-BOT-BC85731  Calocedrus decurrens Doris K. Kildale 1929-5-11 7715 Siskiyou Cecilville, south fork of Salmon River Comment
  HSC68393  Calocedrus decurrens Maralyn A. Renner 1980-6-26 1247 Siskiyou SE edge of Flint Valley. 1390 Comment
  RSA12708  Calocedrus decurrens C. B. Wolf, E. R. Johnson 1934-10-8 6168 Siskiyou Modoc Lava Beds, 14.3 miles northeast of Fall River on road from Dana to Little Hot Springs Valley 1220 Comment
  RSA184686  Calocedrus decurrens Gilbert Muth 1966-8-3 495 Siskiyou Marble Valley Meadow, Marble Mtns. 1793 Comment
  UC718145  Calocedrus decurrens C. B. Wolf and E. R. Johnson 1934-10-8 6168 Siskiyou Modoc Lava Beds Modoc Lava Beds (14.3 mi e of Fall Riveron Rd. from Dana to Little Hot Springs Valley) 1219 Comment
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Mar 29 2012
  RSA369081  Calochortus coeruleus Christopher Davidson 1975-6-5 2679 Siskiyou 6 miles ESE of Callahan on Hwy 3 (= 4 miles SE of Scott River Bridge). 1349 Comment
  SEINET10469584  Calochortus coeruleus Mary Merello 1993-6-25 Merello 727 Siskiyou Shasta National Forest. Deep Crater Area. Lava beds. Open pine forest. Along Forest Service Road 42N22, from Main Forest Service Road 49-Powder Hill Road. 1550 Comment
  SEINET8201963  Calochortus elegans Unknown 1938-7-19 1748 Siskiyou 2.5 miles northeast of Dry Lake Lookout, summit of Siskiyou Mts. Comment
  CAS-BOT-BC488612  Calochortus elegans var. nanus Harley P. Chandler 1901-6-1 1641 Siskiyou Marble Mountain; North Coast Ranges 2438 Comment
  SEINET5052729  Calochortus macrocarpus Unknown 1995-7-1 26 Siskiyou east of Yreka; near Table Mountain Comment
  HSC44855  Calochortus tolmiei J. P. Smith 1973-5-5 6538 Siskiyou Scott Bar along the Scott River Comment
  HSC68406  Calochortus tolmiei Maralyn A. Renner 1980-6-26 1133 Siskiyou Flint Valley. 1390 Comment
  CAS-BOT-BC494016  Calochortus tolmiei Gilbert Muth 1965-8-6 s.n. Siskiyou Backside of Blk. Mt. 2072 Comment
  CAS-BOT-BC167236  Caltha leptosepala R. C. Wenk 2008-7-24 919 A Siskiyou Kangaroo Lake, south of the Gazelle-Callahan Rd. 1851 Comment
  CAS-BOT-BC181503  Caltha leptosepala Doris K. Kildale 1928-8-19 6513 Siskiyou English Lake, head of north fork of Salmon River Comment
  CAS-BOT-BC273392  Calycadenia fremontii Carl B. Wolf 1927-8-27 1152 Siskiyou On the Klamath River 1 mile above the Salmon River Comment
  JEPS24805  Calycadenia truncata Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6814 Siskiyou about 4 mi n Weed (along US Hwy 99, on short grade down into floor of valley); Shasta Valley 920 Comment
  UC1971673  Calycadenia truncata 1977-7-2 2010 Siskiyou Along Klamath River exit of I-5, 12 mi N of Yreka, rocky road cut W of road. 641 Comment
  UC796486  Calyptridium umbellatum Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11761 Siskiyou French Creek Logging Road w of Callahan 1066 Comment
  HSC27482  Calystegia malacophylla J. P. Smith, J. O. Sawyer 1972-5-28 5370 Siskiyou 1.2 mi. E. of Jackson Creek on Callahan-Cecilville Rd., Klamath National Forest 1341 Comment
  CDA39905  Calystegia occidentalis subsp. occidentalis G. C. Fleischman 1946-7-26 s.n. Siskiyou Vicinity of Mt. Shasta. 0 Comment
  RSA47654  Calystegia occidentalis subsp. occidentalis Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11865 Siskiyou 8 miles from summit of Gazelle Mt. grade, east side. 930 Comment
  UC1045293  Camelina microcarpa Reed Rollins 1940-6-7 15094 Siskiyou along the Pacific Highway near Black Butte; Pacific Highway 1219 Comment
  CHSC78257  Camissonia contorta Vernon H. Oswald 2000-6-5 9926 Siskiyou Butte Valley National Grassland between Macdoel and Dorris, on the north side of Meiss Lake-Sams Neck Road 0.6 mi west of Hwy. 97. 1295 Comment
  RSA29661  Camissonia contorta Louis C. Wheeler 1935-5-26 3527 Siskiyou Yreka Creek, Siskiyou Mountains 854 Comment
  RSA17747  Camissonia tanacetifolia subsp. tanacetifolia Elmer I. Applegate 1935-6-2 9285 Siskiyou Frenner s Ranch, old road to the Lava Beds, near National Monument. Comment
  POM89723  Campanula prenanthoides H. E. Brown 1897-7-15 527 Siskiyou South side Mt. Shasta. 1524 Comment
  SEINET10462932  Campanula prenanthoides Clifton 1979-4-28 CLIFTON 3466 Siskiyou NR SCOTT R., SEIAD V. QUAD. NR SCOTT BAR 1601', Comment
  SEINET10463098  Campanula prenanthoides Muth 1979-8-6 MUTH 13116 Siskiyou Near Tom Gray Gulch, on the Happy Camp quadrangle; close to the town or Happy Camp, gravelly soil, serpentine. 610 Comment
  RSA100329  Campanula prenanthoides F. W. Peirson 1926-7-11 7023 Siskiyou About half way up the grade west of Etna or Etna Mills Comment
  SEINET10463106  Campanula prenanthoides Life 1923-8-6 LIFE s.n. Siskiyou Shasta Springs Comment
  SEINET10463110  Campanula prenanthoides Kildale 1929-7-20 KILDALE 8650 Siskiyou Trail up South Fork Indian Creek to Elk Lick Comment
  SEINET10463151  Campanula prenanthoides Young 1921-9-15 YOUNG s.n. Siskiyou Etna Mills Comment
  POM59331  Campanula rotundifolia E. B. Copeland 1903-9-7 3852 Siskiyou Mt. Eddy. 2744 Comment
  RSA697273  Campanula rotundifolia D. W. Taylor 1996-7-11 15780 Siskiyou Klamath Mountains. Scott Mountians; West Fork Parts Creek (about 15 air miles west of Weed and 1 air miles West of Stewart Springs) Shasta- Trinity National Forest; 1329 Comment
  SEINET10464347  Campanula rotundifolia Albert Kellogg 1853-8-5 Kellogg 108 Siskiyou Cabin Meados, 1 miles north of Cory Peak, Klamath NAtional Forest (11 miles east of Callahan on road to Gazelle, then south 5.8 miles on logging road) 1844 Comment
  SEINET10872979  Campanula scouleri Palmer 1892-7-13 Palmer 2469 Siskiyou Mount Shasta and vicinity Comment
  UC1026172  Campanula scouleri Marion Ownbey and Ruth P. Ownbey 1938-7-19 1757 Siskiyou open woods near Deer Camp; Siskiyou Mountains Comment
  CAS-BOT-BC266466  Campanula wilkinsiana C. Edward Graves 1944-8-28 s.n. Siskiyou Panther Meadows, Mount Shasta Comment
  SEINET10463879  Campanula wilkinsiana Prouty 1979-8-14 PROUTY 79 .40 Siskiyou CREEKSIDE, COLD CREEK, E SLOPE OF MT. SHASTA T41N R2W SEC. 20 NE 1/4 1890 Comment
  SEINET10463882  Campanula wilkinsiana Cooke 1939-8-24 COOKE 11894 Siskiyou COMMON ALONG CREEKS IN SQUAW VALLEY CREEK MEADOWS 2286 Comment
  HSC90975  Cardamine californica Jennifer Whipple 1976-6-17 1025 Siskiyou Near Durney Lake 2073 Comment
  RSA120643  Cardaria draba Milo S. Baker 1955-6-27 13089 Siskiyou Scott Valley 1 mile N of Callahan. Comment
  RSA550450  Carex abrupta R. Tallent 1987-8-16 942 Siskiyou Panther Meadows Trailhead area. Mt. Shasta area. 2220 Comment
  CAS-BOT-BC17862  Carex amplifolia J. H. Thomas 1954-5-14 4181 Siskiyou Trinity National Forest. Salmon Mountains. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. 1219 Comment
  UC822760  Carex aquatilis Frank W. Gould 1940-5-14 1229 Siskiyou Bull Meadows Goosenet Mountains, Bull Meadows 1524 Comment
  POM82013  Carex aquatilis Geo D. Butler 1910-5-21 1377 Siskiyou Locality unsure? Klamath River Comment
  UC1100435  Carex athrostachya Herbert L. Mason 1948-7-18 13610 Siskiyou Grass Lake Comment
  UCD140137  Carex athrostachya Herbert L. Mason 1948-7-18 13610 Siskiyou Grass Lake. Comment
  CAS-BOT-BC19657  Carex brainerdii John Thomas Howell 1939-8-3 15008 Siskiyou Marble Mountains. Spirit Lake. 1828 Comment
  CHSC70771  Carex brainerdii A. Francis 1996-7-17 3642 Siskiyou Medicine Lake Highlands, just E of 49 road, NE of Medicine Lake Glass Flow. 2225 Comment
  UC642557  Carex brainerdii J. W. Stacey 1939-8-10 13819 Siskiyou in the bed of Mud Creek Canyon Mud Creek Canyon Comment
Read comments
Mar 22 2008
  SEINET10648314  Carex breweri A. Arthur Heller 1922-7-3 Heller 13679 Siskiyou Wet gravel above the head of Wagon Creek, Mount Eddy in the Hudsonian Zone. 2560 Comment
  HSC85706  Carex concinnoides L. P. Janeway 1982-7-10 58 Siskiyou Near Old Greyback Rd., 1/2 mi. above the W Branch Guard Station 747 Comment
  SEINET8355497  Carex concinnoides Barbara Wilson 1994-5-27 6920 Siskiyou Rogue River NF: low on the New London, between the first and second acute corners, near the trailhead, between Rd 1050 and the creek. Comment
  HSC7059  Carex douglasii Robert C. Wunner 1965-8-21 462 Siskiyou Lava Beds National Monument, 1/4 mi. S of Caldwell Cinder Pit, near base of Caldwell Butte Comment
  HSC85830  Carex echinata subsp. echinata L. P. Janeway 1983-7-31 473 Siskiyou Poker Flat, upper portion of meadow. 1524 Comment
  HSC76838  Carex exsiccata L. P. Janeway 1982-6-25 22 Siskiyou 300 m. SE of No Mans Creek, 600 m. up Creek from the Clear Creek Rd. 610 Comment
  HSC61113  Carex fracta Ruby Van Deventer 1955-7-31 Siskiyou FS 17N04, Mt. Bog near Doe Flat Comment
  JEPS101096  Carex geyeri Dean W. Taylor 1997-6-12 16065 Siskiyou hillslopes at base of Scott Mountains at mouth of Willow Creek, Shasta Valley); ca. 4 miles west of Gazelle 944 Comment
  UC1025113  Carex gigas Douglas Barbe 1955-7-9 148 Siskiyou small stream at the sw shore Scott Mountains, Kangaroo Lake 1828 Comment
  SEINET10652997  Carex gigas Thomas W. Nelson, Jane P. Nelson; James P. Smith 1978-7-24 Nelson 4544 Siskiyou Siskiyou-Trinity County line. China Mountain Quad. T39N, R7W, Sec. 5. Bog at head of Scott Mountain Creek south of Forest Service Campground. 1646 Comment
  HSC48021  Carex globosa D. H. Norris 1972-6-11 22844 Siskiyou Along Duck Lakes trail near Parrott's Mill Road 1677 Comment
  HSC77158  Carex globosa L. P. Janeway 1983-7-17 415 Siskiyou NE facing slope at edge of FS Rd. 18N33, 7 mi. from the Grayback Rd. 1463 Comment
  SEINET7561221 Image available Carex halliana Juha Pykala, D. H. Norris 1987-7-8 2432 Siskiyou Little Medicine Lake, between lake and road. 2042 Comment
  CAS-BOT-BC28085  Carex hoodii William Bridge Cooke 1938-7-15 11173 Siskiyou Mt. Shasta Springs. 1524 Comment
  CHSC95997  Carex integra L. P. Janeway 2006-7-4 8790 Siskiyou Klamath Ranges. Scott Mountains; Darlingtonia fen and creeklet complex above Road 40N13 1.6 air km west of Scott Mountain Summit. 1728 Comment
  SEINET7563577 Image available Carex laeviculmis Ray Tallent 1987-8-12 899 Siskiyou Klamath National Forest, Long Gulch Lake. 1939 Comment
  CAS-BOT-BC31306  Carex lenticularis var. impressa Annetta Mary Carter 1939-8-20 1461 Siskiyou NW side of Taylor Lake, 12 mi SW of Etna, Salmon Mountains. 2026 Comment
  HSC76372  Carex lenticularis var. lipocarpa L. P. Janeway 1982-8-13 127 Siskiyou N side of Bear Lake 1814 Comment
  UC1265340  Carex lenticularis var. lipocarpa Frederick W. Oettinger 1968-9-9 801 Siskiyou at lower meadow, Tom's Lake Salmon Mountains, Marble Mountain Wilderness Area 2011 Comment
  UCD140530  Carex luzulina A. A. Heller 1920-7-6 13410 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1158 Comment
  CAS-BOT-BC31634  Carex luzulina var. ablata R. Tallent 1987-8-16 943 Siskiyou Mt. Shasta area. Panther Meadows Trailhead area. 2219 Comment
  RSA237356  Carex luzulina var. ablata Frederick W. Oettinger 1969-8-22 1504 Siskiyou South end of Horse s Hole, near Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CAS-BOT-BC31688  Carex mariposana Gordon H. True 1966-7-21 3101 Siskiyou Sierra Valley, ca 1 mi N of Sattley 1493 Comment
  SEINET7566760 Image available Carex mariposana Frederick W. Oettinger 1968-9-8 733 Siskiyou High Lake Basin in the vicinity of English Peak, Marble Mountains Wilderness Area. Area of late snow-hold, southeast of Tom's Lake. 2149 Comment
  HSC76389  Carex mendocinensis L. P. Janeway 1982-6-22 19 Siskiyou 400 m NE of West Branch Guard Station along the road into Indian Creek, near small creek crossing 671 Comment
  HSC59011  Carex mertensii Marvin Butler 1971-7-21 179 Siskiyou Near Bell Echo Camp, close to the town of Cave Junction 1433 Comment
  HSC62586  Carex mertensii Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  HSC39090  Carex microptera D. H. Norris May 1970 12261 Siskiyou Haypress Meadows, Marble Mtn. Wilderness Area Comment
  HSC97419  Carex multicaulis Jennifer Whipple 1978-7-20 2365 Siskiyou S face of Mount Eddy, draining into the N fork of the Sacramento River 2439 Comment
  CAS-BOT-BC23426  Carex multicostata John Thomas Howell 1939-8-9 15231 Siskiyou Ridge south of Marble Valley, Marble Mts. Comment
  CAS-BOT-BC21131  Carex nigricans Gote Wilhelm Turesson; Carl Gustav Alm 1938-7-19 499 Siskiyou Mount Shasta, southern slope. 2743 Comment
  HSC96015  Carex nigricans Juha Pykala, D. H. Norris 1987-7-7 2357 Siskiyou Mt. Shasta, Everitt Memorial Highway, Panther Meadow 2287 Comment
  POM173649  Carex nudata Geo D. Butler 1910-7-6 1646 Siskiyou Shackleford Creek. 915 Comment
  CAS-BOT-BC119291  Carex occidentalis John Thomas Howell 1939-8-3 14989 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC119207  Carex pachystachya John Thomas Howell 1937-7-24 13433 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  UC1265326  Carex pachystachya Frederick W. Oettinger 1968-8-11 485 Siskiyou Tom Taylor Cabin Salmon Mountains, Marble Mountain Wilderness Area 1981 Comment
  UC822439  Carex pachystachya Louis C. Wheeler 1934-8-2 3014 Siskiyou head Jaynes Canyon; Siskiyou Mts. 2042 Comment
  CAS-BOT-BC119201  Carex pachystachya A. A. Heller 1922-7-15 13708 Siskiyou Wet sandy soil in the meadow at Medicine Lake. 2133 Comment
  SEINET10949630  Carex paucicostata Thomas W. Nelson, Jane P. Nelson 1979-6-16 Nelson 4862 Siskiyou China Mountain Quad. T40N, R8W, Secs. 24 & 25. Drying meadow above Mule Creek along State Route 3, 4.4 miles north of Scott Mountain Summit. 1219 Comment
  CAS-BOT-BC119129  Carex phaeocephala P. M. Kamb 1949-8-25 1498 Siskiyou SW slope of Mt. Shasta, above Horse Camp 3169 Comment
  SEINET10817769  Carex praegracilis George D. Butler 1910-4-19 Butler 1202 Siskiyou Damp gully near Yreka. Comment
  UC1950435  Carex preslii Barbara Ertter 1990-7-14 9317 Siskiyou E side Mt Eddy ca 4 airmiles due W of Mt Shasta City, at streamlet near end of FR 41N53 ca 1 mi N of Morgan Meadows, steep E-facing serpentine hillside Comment
  CAS-BOT-BC118792  Carex preslii William Bridge Cooke 1939-7-21 13730 Siskiyou In small bog around lower Wagon Camp Springs 1737 Comment
  HSC68504  Carex rossii Maralyn A. Renner 1980-6-22 935 Siskiyou 1 mi. N of Little Shasta River 1402 Comment
  HSC89793  Carex rossii D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 1829 Comment
  SEINET7486116 Image available Carex rossii Unknown s.n. Siskiyou near Pacific Crest Trail, Route 3, Scott Mountain Summit, Klamath Range (KR) 1640 Comment
  CAS-BOT-BC118213  Carex rossii L. P. Janeway 1983-8-28 647 Siskiyou Preston Peak quad, At poker Flat 1524 Comment
  HSC76835  Carex rostrata L. P. Janeway 1982-8-21 166 Siskiyou SE facing slope in Twin Valley 1524 Comment
  HSC76823  Carex scabriuscula L. P. Janeway 1982-8-13 125 Siskiyou 70 m N of Bear Lake at edge of seasonal channel 1814 Comment
  RSA238969  Carex scopulorum Frederick W. Oettinger 1969-8-19 1455 Siskiyou Abbott s Basin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  CAS-BOT-BC117250  Carex spectabilis John Thomas Howell 1937-7-25 13479 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  RSA238963  Carex spectabilis Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1259 Siskiyou Lower pond, Tom s Lake Region. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  RSA238964  Carex spectabilis Frederick W. Oettinger 1969-9-4 1659 Siskiyou Tom s lower pond near Tom s Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  CAS-BOT-BC117342  Carex stipata W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow. Sisson. Comment
  JEPS109229  Carex stipata var. stipata D. W. Taylor 2004-7-19 19185 Siskiyou Weed, wet meadow just E of town limits along Boles Creek Comment
  CHSC99590  Carex straminiformis L. P. Janeway 2008-7-25 9502 Siskiyou Klamath Ranges. Siskiyou Mountains; 3.2 air km southwest of Cook and Green Pass, 0.4 km southeast of Red Butte. 1737 Comment
  POM254181  Carex straminiformis J. T. Howell 1939-8-2 14908 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  CHSC110081  Carex straminiformis Robert F. Thorne; Fred Oettinger 1969-8-10 38977 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta; moist ground of streamlet originating as overflow from large water tank above ski lodge. 2316 Comment
  CAS-BOT-BC115858  Carex subfusca Louis C. Wheeler 1934-6-22 2754 Siskiyou Cottonwood Creek. 914 Comment
  CAS-BOT-BC115855  Carex subfusca Louis C. Wheeler 1934-7-2 2841 Siskiyou Little Smoky Cr. 1280 Comment
  SEINET10912836  Carex subfusca George D. Butler 1910-5-29 Butler 1426 Siskiyou Slough near Yreka. Comment
  UC835109  Carex utriculata John Thomas Howell 1939-8-9 15197 Siskiyou Sky High Valley Marble Mts. 1828 Comment
  CHSC114090  Carex utriculata Danielle Roach 2011-9-13 CLB_C Siskiyou Bogbean Fen, Caldwell Lakes Basin, headwaters of Parks Creek, east slope of China Mountain; UTM Zone 10N, 536883E 4580493N. 2040 Comment
  JEPS95093  Carex whitneyi Vernon Oswald and Lowell Ahart 1997-7-28 8799 Siskiyou at Schonchin Spring Campground at Medicine Lake Medicine Lake; , Schonchin Spring Campground 2057 Comment
  CAS-BOT-BC59706  Cassiope mertensiana John Thomas Howell 1937-7-25 13443 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CHSC592  Cassiope mertensiana V. Holt 1932-7-10 Siskiyou Mt. Eddy. 2438 Comment
  CAS-BOT-BC59702  Cassiope mertensiana W. R. Dudley 1901-8-24 s.n. Siskiyou Foxtail Ridge, Salmon Mts. Comment
  RSA238340  Cassiope mertensiana subsp. ciliolata Frederick W. Oettinger 1968-8-1 336 Siskiyou Inlet stream to Little Hancock Lake as it passes through a wet boreal meadow just So. of the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  HSC69366  Castilleja applegatei J. O. Sawyer, J. Cole 1980-7-19 3652 Siskiyou N and W of Little Mt. Hoffman 1982 Comment
  HSC82256  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1980-7-20 6176 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  JEPS16626  Castilleja applegatei subsp. pinetorum Douglas Barbe 1955-7-28 311 Siskiyou 1 mi w Scott Mt. Camp (near the Siskiyou-Trinity County line); Klamath Mountains 1676 Comment
  CAS-BOT-BC243765  Castilleja applegatei var. pinetorum Elmer I. Applegate 1935-8-3 10016 Siskiyou North slope of Caldwell Butte, Lava Beds National Monument Comment
  CAS-BOT-BC243771  Castilleja applegatei var. pinetorum A. A. Heller 1916-6-20 12398 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1188 Comment
  UC722105  Castilleja arachnoidea C. L. Hitchcock and J. S. Martin 1939-7-9 5333 Siskiyou near King's Castle; Paradise Lake 1767 Comment
  HSC76912  Castilleja arachnoidea K. T. Stillman 1976-6-26 124 Siskiyou Marble Mtn. Wilderness Area, near Bear Lake. 1829 Comment
  RSA153437  Castilleja arachnoidea L. T. Dempster, Clare B. Hardham 1961-7-1 1842 Siskiyou Along ridge from Condry Peak to White Mtn., about 1.5 mi. e. of White Mtn. Siskiyou Mountains; watershed between Dutch Creek (Applegate River) and Horse Creek (Klamath River). 1890 Comment
  UCR131624  Castilleja lacera L. C. Wheeler 1935-6-27 3611 Siskiyou Klamath Ranges region, Greenview, Scott Valley 884 Comment
  UC1408802  Castilleja miniata Robert F. Thorne and Fred Oettinger 1969-8-10 28968 Siskiyou Panther Creek Meadows Mt. Shasta National Forest, Mt. Shasta (s slope of Mt. Shasta) 2194 Comment
  HSC72571  Castilleja pruinosa J. P. Smith 1976-5-4 8668 Siskiyou SR 263 near junction with SR 96, above Shasta River 671 Comment
  CAS-BOT-BC241081  Castilleja schizotricha K. T. Stillman 1976-6-25 102 Siskiyou Marble Mountain Wilderness Area. NE facing in Black Mt. 2133 Comment
  CAS-BOT-BC241087  Castilleja schizotricha John Thomas Howell 1939-8-4 15043 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  CHSC1700  Castilleja schizotricha V. Holt 1943-8-9 Siskiyou Marble mountains. 1828 Comment
  SBBG116569  Ceanothus arcuatus D. Wilken with E. Painter 2003-7-16 16153 Siskiyou near S Fk of Salmon River, near mouth of Butcher Gulch, ca. 6 linear km WNW of Cecilville 610 Comment
  CAS-BOT-BC48655  Ceanothus cordulatus Alice Eastwood 1921-7-24 s.n. Siskiyou Castle Lake Comment
  CDA35569  Ceanothus cordulatus T. C. Fuller 1962-5-17 8734 Siskiyou West of Hwy. 99, 3 miles south of Mt. Shasta City. 0 Comment
  CAS-BOT-BC49186  Ceanothus cuneatus C. Hart Merriam 1919-9-24 s.n. Siskiyou Ager Comment
  RSA240090  Ceanothus integerrimus Frederick W. Oettinger 1969-8-25 1550 Siskiyou Little North Fork stream along new trail from end of logging road to Devils Canyon trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1220 Comment
  UC164401  Ceanothus integerrimus Geo. D. Butler 1909-5-31 769 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC50684  Ceanothus integerrimus var. macrothyrsus G. P. Rixford s.n. Siskiyou South side of Shaft-Rock Mt. Hilt Comment
  RSA25704  Ceanothus integerrimus var. macrothyrsus Carl B. Wolf 1941-7-26 11079 Siskiyou Sacramento River Canyon, 1 mile below Dunsmuir. 671 Comment
  CAS-BOT-BC52114  Ceanothus prostratus Elmer I. Applegate 1929-6-18 5740 Siskiyou Weed Comment
  CAS-BOT-BC52120  Ceanothus prostratus Alice Eastwood 1912-7-18 1218 Siskiyou Sisson Comment
  CAS-BOT-BC53079  Ceanothus prostratus Robert F. Thorne; Frederick W. Oettinger 1969-8-10 38946 Siskiyou Mt. Shasta National Forest - SW slope of Mt. Shasta along Ski Bowl Road 1280 Comment
  CAS-BOT-BC53027  Ceanothus sanguineus Louis C. Wheeler 1934-6-23 2774 Siskiyou Klamath Forest - Sterling Mine, Bullion Mt. - Mt. Diablo Mer. 1280 Comment
  HSC100186  Ceanothus sanguineus J. P. Smith, & J. O. Sawyer 2011-9-3 13404 Siskiyou Along Klamath National Forest Road 47N01. 739 Comment
  SD249278  Ceanothus sanguineus David Keil, Kathleen Keil 1990-7-28 Siskiyou Marble Mountains, Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  CAS-BOT-BC63154  Ceanothus velutinus Doris K. Kildale 1929-8-24 9066 Siskiyou Trail to Preston Peak between Ynengs Valley and Rattlesnake Meadow. 1524 Comment
  JEPS42166  Ceanothus velutinus Geo. D. Butler 1909-6-22 904 Siskiyou Goosenest Mt. Comment
  OBI10323  Ceanothus velutinus H. E. McMinn 1931-6-27 2519 Siskiyou Shasta City Comment
  UC61164  Ceanothus velutinus W. A. Setchell, C. C. Dobie 1902-7-14 Siskiyou Sissoon Mount Shasta, Sisson Comment
  SEINET204767  Ceanothus velutinus J. M. Tucker, LK Mann 1963-7-4 3694 Siskiyou Beside road from Etna to Sawyer's Bar ca. 4.7 road miles SW of Etna Comment
  CAS-BOT-BC52808  Ceanothus velutinus var. velutinus Laura M. Lathrop 1903-7-25 s.n. Siskiyou Mt. Bradley Comment
  CAS-BOT-BC52842  Ceanothus velutinus var. velutinus A. A. Heller 1919-6-27 13252 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC52846  Ceanothus velutinus var. velutinus Doris K. Kildale 1928-7-2 5341 a Siskiyou Salmon Summit near Hour Creek Trail 1981 Comment
  UC449590  Ceanothus velutinus var. velutinus Milo S. Baker 1896-1 Siskiyou Stage road between Bartles and Sisson; between Bartles and Sisson Comment
  CAS-BOT-BC272122  Centaurea cyanus John H. Thomas 1969-9-7 15467 Siskiyou Near railroad tracks, McCloud Comment
  CAS-BOT-BC284488  Centaurea solstitialis Alice Eastwood 1912-7-25 1453 Siskiyou Pitt Comment
  HSC67015  Centaurea solstitialis J. P. Smith, Steve Selva 1970-7-16 4403 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  CAS-BOT-BC106027  Centaurea virgata subsp. squarrosa R. E. Frenkel 1964-7-14 685 Siskiyou On a southern shoulder of Everitt Memorial Highway just east of a point 3.7 miles north of McCloud River RR crossing. 1493 Comment
  CDA36772  Centaurea virgata var. squarrosa D. B. Joley 1976-6-24 4 Siskiyou Hawkinsville. 0 Comment
  JEPS82438  Cerastium arvense Gilbert Muth 1966-7-25 450 Siskiyou Marble Mt. Lookout Marble Mt. Wilderness Area, Marble Mt. Lookout 2097 Comment
  CDA3351  Cerastium dichotomum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-28 2584 Siskiyou Between Old Highway 99 and railroad at Truttman Lane, 3.2 km south of Grenada. Comment
  UCD97999  Cerastium dichotomum T. C. Fuller 1962-5-18 8475 Siskiyou B. M. Long prop., Little Shasta Road, 5 miles east of Montague. Comment
  UCD98000  Cerastium dichotomum T. C. Fuller 1962-5-18 8746 Siskiyou B. M. Long prop., Little Shasta Road, 5 miles east of Montague. Comment
  HSC4098  Cerastium glomeratum Geo. D. Butler 1909-4-14 636 Siskiyou Yreka Comment
  CAS-BOT-BC148523  Cercocarpus ledifolius var. ledifolius C. Hart Merriam 1919-10-12 s.n. Siskiyou Mts. between Yreka & Ft. Jones (north or Yreka side of grade). Comment
  CAS-BOT-BC148532  Cercocarpus ledifolius var. ledifolius Dr. E. B. Copeland 1903-7-6 3562 Siskiyou Hornbrook Comment
  CAS-BOT-BC276757  Chaenactis douglasii var. douglasii Peter H. Raven 1956-9-4 10393 Siskiyou Pass just S of Mount Eddy 2438 Comment
  SEINET7379869 Image available Chaenactis douglasii var. douglasii G. D. Butler 1910-6-17 1573 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC141583  Chamaebatiaria millefolium J. William Thompson 1936-7-8 13151 Siskiyou Lava slopes of Lave Beds Nat. Monument Comment
  MACF017396  Chamaecyparis Trudy R. Ericson 1974-8-8 218 Siskiyou About 17 mi. northwest of Happy Camp on road to Cave Junction, Oregon Comment
  HSC8630  Chamaesyce glyptosperma R. C. Wunner 1965-8-27 435 Siskiyou Lava Beds National Monument, about 1 mi. from NW entrance 1220 Comment
  HSC77230  Chamaesyce maculata L. P. Janeway 1982-7-9 51 Siskiyou Along the shoulder of Hwy. 96, S of Happy Camp. 335 Comment
  UC163690  Chamaesyce serpyllifolia Geo. D. Butler 1908-7-14 445 Siskiyou near Yreka Comment
  UC164158  Chamaesyce serpyllifolia Geo. D. Butler 1908-8-15 70 Siskiyou dry falls near Yreka Comment
  CAS-BOT-BC166094  Chamerion angustifolium subsp. circumvagum H. E. Brown 1897-6-15 46 Siskiyou North side Mt. Shasta 3048 Comment
  CHSC26170  Chamerion angustifolium subsp. circumvagum J. P. Kroessig 1977-8-5 48 Siskiyou McBrides Springs Campground on Mt. Shasta, ca. 4.5 km n of Mt. Shasta City. 1460 Comment
  CAS-BOT-BC68201  Cheilanthes gracillima John Thomas Howell 1939-8-3 14995 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC68250  Cheilanthes gracillima J. H. Thomas 1954-5-14 4173 Siskiyou Salmon Mountains, Klamath National Forest - Near South fork of Salmon River, 5 to 9 miles souteast of Cecilville, 1219 Comment
  CLARK-A1528-7839  Chenopodium vulvaria John C. Roos 1948-9-1 3985 Siskiyou Fort Jones Comment
  UCR66585  Chenopodium vulvaria L. C. Wheeler 1934-10-6 03307 Siskiyou Yreka. 793 Comment
  HSC141  Chimaphila menziesii William J. Ferlatte 1966-8-3 270 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's. 1524 Comment
  CAS-BOT-BC452254  Chimaphila umbellata W. R. Dudley 1899-8-9 s.n. Siskiyou Black Butte Comment
  CAS-BOT-BC452272  Chimaphila umbellata L. E. Smith 1913-7-4 455 Siskiyou North fork, Castle Creek Comment
  UC1733973  Chimaphila umbellata Kay H. Beach and F. Gould 1940-5-15 Siskiyou Meadows and Goosenest Mountain 1828 Comment
  POM146273  Chimaphila umbellata subsp. occidentalis J. B. Feudge 1927-7-22 1728 Siskiyou Trail to Mt. Eddy. 1128 Comment
  POM258013  Chimaphila umbellata subsp. occidentalis C. L. Hitchcock, J. S. Martin, A. S. Hitchcock 1939-7-8 5300 Siskiyou 15 miles north of Happy Camp on Happy Camp-Tailma Hiway. 915 Comment
  SEINET6976053  Chimaphila umbellata subsp. occidentalis Unknown 1986-9-13 2156 Siskiyou Along Canyon Creek Trail between trailhead at Lovers Camp and first junction; near Marble Mountain Wilderness. Comment
  RSA186843  Chloris virgata T. C. Fuller 1966-10-5 15243 Siskiyou at edge of pavement, w. side of Interstate 5 just s. of exit to Hilts. Comment
  SEINET7075526  Chlorogalum angustifolium A. G. Vestal 1955-5-16 s.n. Siskiyou About 6.2 miles northwest of Weed. 41? deg. 28' 27" North Latitude, -122? deg. 28' 53" West Longitude. UTM Zone 10, 543291mE, 4591309mN. (NAD 27). [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC497626  Chlorogalum angustifolium Lewis S. Rose 1945-6-22 45178 Siskiyou Horse Creek & Klamath River 502 Comment
  RSA105418  Chrysanthemum leucanthemum G. D. Barbe 1955-6-29 46 Siskiyou 1.8 miles E of Callahan, S bank of Scott River 976 Comment
  POM106432  Chrysolepis sempervirens Edward Palmer 1892-7-13 2562 Siskiyou Mt. Shasta and vicinity. Comment
  RSA82828  Chrysolepis sempervirens J. M. Tucker 1947-5-17 1555 Siskiyou Ca. 5 miles south-east of Callahan, beside road up Scott Mountain. Comment
  JEPS15736  Cicuta douglasii Willis L. Jepson July, 1894 14230 Siskiyou Mount Shasta, Sisson, Camp 1 Sisson; Mount Shasta, , Camp 1 Comment
  JEPS109395  Cinna latifolia Dean W. Taylor 2004-7-20 19196 Siskiyou Bear Spring, Mt. Shasta 1554 Comment
  RSA105485  Circaea alpina subsp. pacifica Douglas Barbe 1955-6-30 61 Siskiyou 1.0 mile NW of Forest Camp, Etna. Along Johnson Creek. 945 Comment
  CAS-BOT-BC285346  Cirsium andersonii L. E. Smith 1913-7-27 491 Siskiyou McCloud Comment
  CHSC72227  Cirsium arvense Vernon H. Oswald; Lowell Ahart 1998-9-16 9633 Siskiyou Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi east of Hwy. 97. 1243 Comment
  CDA1136  Cirsium ciliolatum T. C. Fuller, Don Shaw 1978-7-5 20246 -A Siskiyou Northwestern; Klamath Ranges region; North side of York Road, 0.3 km east of Bryant-Willow Creek Road, 15 km north of Montague; T46N R5W, sec. 20 0 Comment
  CDA1137  Cirsium ciliolatum T. C. Fuller, Don Shaw 1978-7-5 20246 -B Siskiyou Northwestern; Klamath Ranges region; North side of York Road, 0.3 km east of Bryant-Willow Creek Road, 15 km north of Montague; T46N R5W, sec. 20 0 Comment
  CAS-BOT-BC278051  Cirsium cymosum T. C. Fuller 1960-6-29 4644 Siskiyou Scott Mtn. road, 3.6 miles S/Callahan Comment
  JEPS16945  Cirsium douglasii var. breweri Peter H. Raven 1956-9-5 10442 Siskiyou along streams near North Fork of the Sacramento River 2194 Comment
  UC60987  Cirsium douglasii var. breweri Geo. B. Grant 1902-9-1 5149 Siskiyou Sisson Mount Shasta, Sisson 914 Comment
  CAS-BOT-BC285574  Cirsium occidentale var. candidissimum Alice Eastwood 1912-8-28 1957 Siskiyou Cantara Comment
  HSC27654  Cirsium occidentale var. candidissimum Carl W. Mize 1972-7-8 9 Siskiyou Along Wooly Creek trail 328 Comment
  SEINET10808345  Cirsium occidentale var. candidissimum Katherine L. Morris, Melvin L. Conrad; David B. Dunn 1973-6-2 Morris 360 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy. 263. Comment
  HSC75625  Cirsium scariosum J. O. Sawyer, R. J. Cole 1980-7-23 3907 Siskiyou S of Tennant 1524 Comment
  CDA1577  Cirsium scariosum var. robustum T. C. Fuller 1977-6-14 20216 -A Siskiyou Klamath Lake valley; North side of Hwy 161 (Stateline Rd.) 5.2 km. east of Hwy 97, 10.5 km. NE of Dorris. Comment
  CDA1578  Cirsium scariosum var. robustum T. C. Fuller 1977-6-14 20216 Siskiyou Klamath Lake valley; North side of Hwy 161 (Stateline Rd.) 5.2 km. east of Hwy 97, 10.5 km. NE of Dorris. Comment
  RSA439205  Cirsium vulgare L. C. Wheeler 1934-7-5 2882 Siskiyou Deer Creek, Sterling Mt., Siskiyou Mts 1524 Comment
  CAS-BOT-BC164163  Clarkia concinna Doris K. Kildale 1929-5-26 9202 Siskiyou Hawkins Bar on Salmon River 609 Comment
  UC909475  Clarkia rhomboidea J. H. Thomas 1949-6-16 948 Siskiyou 1/2 mi n Beaver Creek Public Camp (5 mi n of junction of Beaver Creek and Klamath River); Klamath National Forest Comment
  HSC19168  Clarkia rhomboidea J. O. Sawyer 1969-7-9 1220 Siskiyou On trail to S Sugar Lake 1692 Comment
  RSA237658  Clarkia rhomboidea Frederick W. Oettinger 1969-7-28 1086 Siskiyou Dry open granite slope above first part of Tom s Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  SEINET10689255  Clarkia rhomboidea H. E. Brown 1897-7-15 Brown 537 Siskiyou Southwest side Mt. Shasta. Altitude 5000-10000 feet. 1525 Comment
  CAS-BOT-BC439105  Claytonia cordifolia G. J. Muth 1969-8-12 1380 Siskiyou Second Valley Comment
  CAS-BOT-BC439108  Claytonia cordifolia K. T. Stillman 1976-6-25 72 B Siskiyou Marble Mountain Wilderness Area. 1798 Comment
  UC609318  Claytonia cordifolia Eleanor Burks Hart 1938-8-15 885 Siskiyou s side Upper Wright Lake 2225 Comment
  RSA0059500  Claytonia cordifolia J. T. Howell 1939-8-3 15012 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  RSA332450  Claytonia cordifolia J. P. Smith, Steve Selva 1970-6-16 4055 Siskiyou 8 miles west of Etna on road to Sawyers Bar 1372 Comment
  RSA466946A  Claytonia exigua subsp. exigua Christopher Davidson 1975-6-5 2670 Siskiyou 0.8 mi. from gate on special service rd. branching SE of rd from Gazelle to Callahan, ca. 9.3 miles W of Gazelle. Klamath Nat. Forest. 1509 Comment
  SBBG15810  Claytonia palustris D. Myrick 1961-6-20 289 Siskiyou Bear Springs, Mt Shasta E of Mt Shasta City 1676 Comment
  RSA469310  Claytonia rubra M. B. Dunkle 1944-7-15 906 Siskiyou Siskiyou Nart l Forest. 1768 Comment
  CAS-BOT-BC443815  Claytonia rubra subsp. rubra Wm. Bridge Cooke 1938-7-1 11122 Siskiyou Mount Shasta. Bear Spring. Comment
  CAS-BOT-BC443831  Claytonia rubra subsp. rubra John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53399 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  CHSC34843  Claytonia rubra subsp. rubra M. S. Taylor 1980-6-20 2940 Siskiyou On both sides of Military Pass Rd, among the sagebrush, ca. 4 mi s of Klamath Falls Hwy, ne of Mt. Shasta. Comment
  CAS-BOT-BC443818  Claytonia rubra subsp. rubra Wm. Bridge Cooke 1938-6-24 11063 Siskiyou Mount Shasta. MacBride [McBride] Springs Comment
  HSC4463  Claytonia sibirica William J. Ferlatte 1967-8-19 1037 Siskiyou S Fork of Salmon River, between campground and Carter's 1524 Comment
  CDA25287  Cleome platycarpa J. R. Grisham 1961-7-14 Siskiyou Elsea property, Montague. 0 Comment
  HSC19260  Clintonia uniflora J. O. Sawyer 1968-9-13 724 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC67679  Clintonia uniflora John Palmer 1980-7-24 620 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC72674  Collinsia grandiflora J. P. Smith 1976-5-5 8674 Siskiyou Road from Etna to Sawyer's Bar. 732 Comment
  SJSU6055  Collinsia parviflora R. W. Trivelpiece 1971-6-16 37 Siskiyou N of Alder Cr divide between Whaleback & Haight Mt c. 15 mi N of Mt Shasta 1676 Comment
  UC54656  Collinsia parviflora H. M. Hall and E. B. Babcock Jun 1903 4069 Siskiyou near Upton (Sierra Nevada Mountains, Mount Shasta); Sierra Nevada Mountains, Mount Shasta 1066 Comment
  UC54657  Collinsia parviflora H. M. Hall and E. B. Babcock Jun 1903 4703 Siskiyou near Upton (Sierra Nevada Mountains, Mount Shasta); Sierra Nevada Mountains, Mount Shasta 1066 Comment
  POM43373  Collinsia rattanii Geo. D. Butler 1910-4-16 1188 Siskiyou Klamath River. Comment
  UC164472  Collinsia rattanii Geo. D. Butler 1910-4-16 1188 Siskiyou Klamath Bluffs near Yreka; Klamath Bluffs Comment
  CHSC57435  Collomia tinctoria L. P. Janeway 1984-6-22 872 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. 1645 Comment
  UC1409299  Collomia tinctoria Frederick W. Oettinger 1969-8-12 1349 Siskiyou side of English Lake Trail above Willow Spring (high lake basins in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area Comment
  UC52508  Collomia tinctoria Harley P. Chandler 1901-6-1 1634 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  HSC30430  Collomia tinctoria Frederick W. Oettinger 1969-7-11 969 Siskiyou Marble Mtn. Wilderness Area, along trail between English Lake and Diamond Lake 1890 Comment
  JEPS125863  Collomia tracyi Dean W. Taylor 1996-7-10 15772 Siskiyou Hayden Ridge; watershed divide of Scott Valley and Noyes Valley, about 10 air miles E of Etna Comment
  RSA0006005  Cordylanthus pallescens Francis W. Pennell 1940-7-18 26184 Siskiyou 2-3 mi. north of Mt. Shasta City. 1159 Comment
  HSC92118  Cordylanthus tenuis subsp. pallescens T. I. Chuang, L. R. Heckard 1969-8-21 6741 Siskiyou Southwest of Black Butte, NW of Mount Shasta City 1067 Comment
  JEPS57500  Cordylanthus tenuis subsp. pallescens L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-8-12 2122 Siskiyou 4 mi nw of City of Mount Shasta (sw of Black Butte, along Garbage Disposal Road just off Highway 5 (old 99)); Garbage Disposal Road 1173 Comment
  JEPS66517  Cordylanthus tenuis subsp. pallescens L. R. Heckard and T. I. Chuang 1971-8-15 2774 Siskiyou ca. 2 mi ne Mt. Shasta City (between old hwy 99 and new freeway) Comment
  JEPS70113  Cordylanthus tenuis subsp. pallescens L. R. Heckard 1972-8-4 3150 Siskiyou ca. 4 mi nw Mt. shasta City (s of Black Butte, 0.1 mi from road parallelling old US Hwy 99, along Pony Trail Dr, near Shasta Abbey (Zen Mission)) 1188 Comment
  CHSC105583  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-4 16202 b Siskiyou Forest Service Road 41N26, the Eddy Creek Road, 0.6 mile above the junction with Old Stagecoach Road (study site 10). Lat. and Long. indicated +/- 33 feet. 1039 Comment
  CHSC105584  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-3 16191 Siskiyou Shasta-Trinity National Forest, along road 40N26 west of Lake Siskiyou, on north side of road; Lat. and Long. indicated +/- 52 feet. 1198 Comment
  CHSC105585  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-9 16291 b Siskiyou Shasta-Trinity National Forest, on Stewart Springs Road (Forest Service Road 17) 5.3 miles from the Gazelle Road. Lat. and Long. indicated +/- 30 feet. 1304 Comment
  UCD123168  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-4 16210 Siskiyou Old Stagecoach Road, about 0.5 mile north of Forest Service road 41N26, the Eddy Creek Road. 993 Comment
  POM211267  Cordylanthus tenuis subsp. tenuis Louis C. Wheeler 1934-8-31 3231 Siskiyou West Fork Beaver Creek, Siskiyou Mtns. 1159 Comment
  CAS-BOT-BC212271  Cornus glabrata Geo. D. Butler 1910-5-22 1385 Siskiyou Yreka Creek Comment
  CAS-BOT-BC212277  Cornus glabrata A. M. Vollmer; L. Beane 1951-6-2 45 Siskiyou Klamath River Highway, between U.S. 99 & Gottville Comment
  JEPS50158  Cornus nuttallii W. L. Jepson July 1894 14140 Siskiyou Sisson Comment
  UC1585391  Cornus nuttallii R. Raiche, K. Zadnik, and H. Forbes 1989-10-3 Siskiyou n. of Seiad Valley (at Cook & Green Pass) 1425 Comment
  SEINET6976042  Cornus nuttallii Unknown 1986-9-13 2155 Siskiyou Near the Marble Mountain Wilderness; along Canyon Creek Trail above Canyon Creek. Comment
  CAS-BOT-BC210402  Cornus sericea Wm. Bridge Cooke 1938-7-1 11121 Siskiyou Mount Shasta. Bear Spring Comment
  UCSB15564  Cornus sericea Breedlove, Dennis 1962-6-10 Siskiyou Along Indian Creek Road; 16.2 miles northwest of Happy Camp; Siskiyou Mountains 1066 Comment
  UCSB22161  Cornus sericea Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road; 22.2 miles north of Happy Camp 1402 Comment
  HSC19034  Cornus sericea subsp. sericea J. O. Sawyer 1969-8-4 1928 Siskiyou Headwaters of S Sugar Creek. 2043 Comment
  HSC19270  Cornus sericea subsp. sericea J. O. Sawyer 1968-7-10 500 Siskiyou Along S Sugar Creek. 1768 Comment
  HSC101827  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-7-31 13346 Siskiyou Fence row along on Collier Way in Etna. 884 Comment
  UCD130937  Crepis modocensis subsp. subacaulis Geo. C. Wood 1940-4-30 s.n. Siskiyou Yreka. Comment
  CAS-BOT-BC299653  Crepis monticola Geo. D. Butler 1910-5-1 148 Siskiyou Near Yreka Comment
  JEPS36497  Crepis monticola Duncan Dunning 1922-6-8 Siskiyou nw Fort Jones; Moffett Creek Comment
  JEPS36427  Crepis occidentalis W. L. Jepson Jul 17 1902-Jul 22 1902 2094 Siskiyou Salmon Summit Western Siskiyou 2286 Comment
  CAS-BOT-BC376493  Crepis occidentalis subsp. conjuncta Lewis S. Rose 1937-7-3 37388 Siskiyou Black Butte, N. of Mt. Shasta City 1005 Comment
  HSC2264  Crepis pleurocarpa Geo. D. Butler 1910-5-19 1365 Siskiyou Yreka Comment
  UC91849  Crepis pleurocarpa T. S. Brandegee July 1887 Siskiyou Sissons Comment
  UCD77572  Crepis pleurocarpa Robert E. Preston 2002-7-12 1913 Siskiyou Klamath National Forest, Rainbow Mountain. 1913 Comment
  SEINET7073599  Crocidium multicaule A. G. Vestal 1955-5-18 s.n. Siskiyou About 2.2 miles southeast of Dorris on US Route 97. UTM Zone 10, 588147mE, 4642648mN. Coordinate datum: NAD27. Comment
  UC895377  Crocidium multicaule Louis C. Wheeler 1935-5-5 3463 Siskiyou Greenhorn Creek Siskiyou Mts., Mt. Diablo Meridian, Greenhorn Creek 853 Comment
  POM31899  Crocidium multicaule Geo. D. Butler 1910-3-11 1122 Siskiyou Yreka Hills. Comment
  POM356384  Crocidium multicaule L. C. Wheeler 1935-5-5 3463 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  HSC44935  Cryptantha affinis J. O. Sawyer 1978-6-19 3249 Siskiyou Marble Mtn. Wilderness Area, trail between Timothy Gulch and Harry Hall Gulch 1433 Comment
  HSC99208  Cryptantha affinis Jennifer Whipple 1976-7-8 1370 Siskiyou Ridgetop W of Dobkins Lake 2256 Comment
  UC618853  Cryptantha affinis unknown 1938-7-15 11187 Siskiyou Bear Springs meadow Mount Shasta, Bear Springs 1524 Comment
  UC164155  Cryptantha flaccida Geo. D. Butler 1910-5-7 1298 Siskiyou Yreka Comment
  CHSC93544  Cryptantha intermedia Lowell Ahart; John Dittes 2005-6-10 12114 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  UC857144  Cryptantha intermedia Milo S. Baker 1936-6-12 8285 Siskiyou about 42 mi n Weed (Highway 97) Comment
  UC78652  Cryptantha rostellata Thomas Howell May 1889 Siskiyou Hornbrook Comment
  CAS-BOT-BC70479  Cryptogramma acrostichoides Doris K. Kildale 1929-7-20 8578 Siskiyou south east spur Preston Peak 1950 Comment
  SEINET10529944  Cryptogramma crispa subsp. acrostichoides Mary Susan Taylor 1980-7-8 Taylor 3096 Siskiyou T39N R5W south center sec 19, Dunsmuir quad; Shasta-Trinity Natl Forest; S end of Little Castle Lake, in steep granitic cliffs. 1768 Comment
  CAS-BOT-BC80534  Cupressus bakeri Frank Callahan; John Erwin 1998-8-8 s.n. Siskiyou Goosenest Mtn., south of Ball Mtn./Little Shasta Rd. (uphill south of Historical Smiths Sawmill) 1676 Comment
  CAS-BOT-BC80552  Cupressus bakeri Oliver V. Matthews 1939-7-11 31 Siskiyou Seiad Grove 1463 Comment
  CAS-BOT-BC80556  Cupressus bakeri O. V. Matthews 1939-7-3 21 Siskiyou S.E. of Sullivan Mine, Cook-Green Region, 3 mi. S. of Blue Ledge Mine 1219 Comment
  POM11470  Cupressus bakeri Geo D. Butler 1910-7-4 s.n. Siskiyou Goosenest Mt. 1220 Comment
  RSA142696  Cupressus bakeri Al Hobart 1961-7-13 4 Siskiyou Mt. Preston 2134 Comment
  SEINET10531077  Cupressus bakeri subsp. matthewsii Matthews 1939-7-11 MATTHEWS 32 Siskiyou Salad Grove. 855 Comment
  UCSB23221  Cuscuta cephalanthi Keefe, Joseph 1967-7-11 Siskiyou 0.5 mile on trail east of Cook and Green Pass; north of Seiad Valley 1371 Comment
  UC1045305  Cycladenia humilis var. humilis unknown 1940-8-22 15476 Siskiyou w. bank Mud Creek Canyon, Mt. Shasta Mt. Shasta, Mudd Creek Canyon Comment
  JEPS39354  Cynoglossum occidentale Geo. D. Butler 1909-7-20 940 Siskiyou Highland Mine Comment
  UC618695  Cynoglossum occidentale Ivan Johnston 1938-6-17 11023 Siskiyou s.w. side of Mt. Shasta Comment
  CHSC96748  Cynoglossum officinale T. C. Fuller 1967-6-27 16034 Siskiyou In fencerow, w. side of rd. to McCloud Reservoir, 0.3 mi. s. of McCloud, Siskiyou Co. Comment
  JEPS64056  Cyperus squarrosus B. C. Goldsmith 1916-9-9 21 Siskiyou Klamath R., Klamath Hot Springs Comment
  CAS-BOT-BC114147  Cyperus squarrosus W. R. Ernst 1958-8-8 287 Siskiyou Grass Lake area, ca. 32 mi S of Oregon State line on Hwy. 97. Comment
  RSA577571  Cyperus squarrosus L. C. Wheeler 1935-7-20 3672 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  HSC19006  Cystopteris fragilis J. O. Sawyer 1969-7-10 1291 Siskiyou E facing slope W of S Sugar Lake 2226 Comment
  CHSC6718  Dactylis glomerata B. Anthony 1968-6-2 573 Siskiyou Pasture of Betty Anthony, Old Etna, 2 miles from Etna. Comment
  HSC30644  Danthonia californica Frederick W. Oettinger, R. F. Thorne 1969-8-4 1153 Siskiyou Marble Mtn. Wilderness Area, English Peak, English Lake Basin, Sundew Bog. 1829 Comment
  UCD61032  Danthonia californica R. Tofsrud 1948-8-3 Siskiyou Poker Flat, near Del Norte Co. border. Comment
  CHSC61561  Danthonia californica var. americana L. P. Janeway 1983-8-26 595 B Siskiyou Siskiyou Mountains; at Poker Flat, in upper part of lower portion of meadow. 1524 Comment
  UCD60722  Danthonia californica var. americana R. Tofsrud 1948-8-3 Siskiyou About 1 mi. SW of Happy Camp. Hwy 96. Comment
  HSC30517  Danthonia intermedia subsp. intermedia Frederick W. Oettinger 1968-8-4 762 Siskiyou Salmon Mountains: Tobacco Lake, upper meadow. 1890 Comment
  CAS-BOT-BC192354  Danthonia unispicata Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  HSC96297  Danthonia unispicata Gordon Leppig 1998-8-13 1000 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  UCD168831  Darlingtonia californica Barry Rice 2015-8-15 BR 150804 Siskiyou East end of Kangaroo Lake. 1838 Comment
  POM266003  Darmera peltata Lincoln Constance, Reed C. Rollins 1942-5-13 2903 Siskiyou Klamath River at mouth of Protugese Creek. 4 miles E of Thompson Creek. 457 Comment
  CAS-BOT-BC2183  Delphinium andersonii subsp. cognatum Elmer Ivan Applegate 1935-6-8 9453 Siskiyou West cinder slope of Sconchin Butte, Lava Beds National Monument Comment
  CAS-BOT-BC9048  Delphinium decorum subsp. tracyi Harley Pierce Chandler 1901-6-1 1589 Siskiyou Ridges and meadows near Marble Mountain 2133 Comment
  UC9128  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1589 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  JEPS86161  Delphinium decorum subsp. tracyi Wayne Roderick 1966-6-23 Siskiyou just e Pass; Cook and Green pass area 1371 Comment
  CAS-BOT-BC8968  Delphinium depauperatum Lillian Mott 1976-7-14 4 OLM76 Siskiyou Vicinity of Lily Pad Lake, ca. 3 mi. west of Cook and Green Pass 2011 Comment
  CAS-BOT-BC9882  Delphinium nudicaule George Dexter Butler 1909-4-18 599 Siskiyou Humbug Divide Comment
  CAS-BOT-BC116158  Delphinium nuttallianum L. E. Smith 1913-5-14 210 Siskiyou Yreka Comment
  HSC41692  Delphinium nuttallianum J. P. Smith, Steve Selva 1970-7-18 4486 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  HSC77045  Delphinium nuttallianum K. T. Stillman 1976-6-25 28 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  CAS-BOT-BC118073  Delphinium nuttallianum William Bridge Cooke 1938-7-1 11156 Siskiyou Near Wagon Camp. Locally common at the lower end of the Wagon Camp meadow along the stream and roadside Comment
  HSC36879  Delphinium nuttallianum J. P. Smith 1974-5-26 7545 Siskiyou Along FS Rd. 47N03 1524 Comment
  RSA151975  Delphinium nuttallianum R. C. Bacigalupi 1952-6-17 3739 Siskiyou Trinity - Siskiyou County line. 500 ft above summit of Scott Mt. road, on county boundary. 1829 Comment
  HSC69102  Deschampsia cespitosa Maralyn A. Renner 1980-8-4 2228 Siskiyou Flint Valley 1390 Comment
  CAS-BOT-BC192469  Deschampsia cespitosa subsp. cespitosa Geo. D. Butler 1910-7-7 1652 Siskiyou Shackleford Creek 914 Comment
  JEPS121611  Deschampsia cespitosa subsp. cespitosa Kendra Sikes 2011-9-13 Siskiyou Bogbean Fen, Caldwell Lakes Basin, headwaters of Parks Creek, east slope of China Mountain. Gently sloping wet meadow, W aspect, over gabbro. China Mountain quadrangle. CLB_1 #B Comment
  JEPS80518  Deschampsia danthonioides Gilbert Muth 1966-7-19 430 Siskiyou Marble Gap Trail along first bluff Marble Mt. Wilderness Area; , Marble Gap Trail 1828 Comment
  POM365037  Deschampsia danthonioides P. B. Kennedy 1929-4-18 s.n. Siskiyou Highway between Woodlake and Dinuba, 10 miles from Dinuba. Comment
  HSC19144  Deschampsia elongata J. O. Sawyer 1969-7-23 1450 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  CDA3688  Descurainia sophia T. C. Fuller 1958-4-17 4821 Siskiyou 4 miles east of Yreka. 0 Comment
  HSC6727  Descurainia sophia R. C. Wunner 1965-7-7 343 Siskiyou California Lava Beds National Monument, near N Prefab, Indian Well 1433 Comment
  UCD95524  Dicentra formosa Ricky D. Pearce 1978-5-7 22 Siskiyou 3.4 miles W of the end of Coffee Creek Road. 1524 Comment
  CAS-BOT-BC402546  Dicentra pauciflora Lillian Mott 1976-7-9 52 LM76 Siskiyou Base of Kangaroo Mt. west of Cook and Green Pass 1828 Comment
  UCSB24989  Dicentra pauciflora Keefe, Joseph 1967-7-11 Siskiyou Along trail to Little Castle Lake, 1.0 mile southeast of Castle Lake, 10 miles south of city of Mt. Shasta 1828 Comment
  HSC98458  Dicentra uniflora J. P. Smith 1974-5-26 7593 Siskiyou Along FS Rd. 47N03, 1/4 mi. NE of Chandler Glade 1768 Comment
  HSC91287  Dicentra uniflora Jennifer Whipple 1976-6-17 1014 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC454399  Dichelostemma capitatum I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  CHSC71866  Dieteria canescens var. shastensis Vernon H. Oswald; Lowell Ahart 1998-9-8 9611 Siskiyou Junction of USFS 3 and 24 ca. 2.5 mi west-southwest of Hambone Butte, ca. 30 air mi north of Burney. 1310 Comment
  CAS-BOT-BC290999  Dieteria canescens var. shastensis Wm. Bridge Cooke 1938-8-5 11439 Siskiyou Mount Shasta. MacBridge Spring Road Comment
  HSC5960  Dieteria canescens var. shastensis D. M. Thomson 1965-8-21 206 Siskiyou California Lava Beds National Monument; Devil's Homestead Lava Flow Comment
  HSC9626  Digitaria sanguinalis C. B. Wolf 1927-8-26 1089 Siskiyou Klamath River, 14 mi. above Happy Camp Comment
  SEINET260462 Image available Diplacus nanus David M. Thompson 1989-1 1022 Siskiyou 10.0 mi NE of Weed along Hwy 97 NW side of rd 1150 Comment
  SEINET8225567  Diplacus nanus Unknown 1948-6-12 1171 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], east fork of Scott River. Comment
  HSC29231  Dodecatheon alpinum Frederick W. Oettinger 1969-7-10 965 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: SW side of Upper English Lake 1768 Comment
  RSA105369  Dodecatheon alpinum G. D. Barbe 1955-7-6 126 Siskiyou Dry areas above NE shore of Taylor lake, Salmon Mtns. 1951 Comment
  RSA238728  Dodecatheon alpinum subsp. majus Frederick W. Oettinger 1969-9-4 1672 Siskiyou In wet boreal meadow below Tom Taylor Cabin Springs. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  CHSC75743  Dodecatheon jeffreyi Vernon H. Oswald; Lowell Ahart 1999-7-5 9826 Siskiyou Summit of Hwy. 3 on Scott Mtn. southeast of Callahan. 1645 Comment
  RSA68858  Dodecatheon jeffreyi A. E. Culbertson 1943-6-29 98 Siskiyou In creek below Castle Lake; in north facing cirque with an abrupt 1000' backwall; 14 mi. s.w. of Mt. Shasta on n. side of A 6600' eastern spur of Trinity Mrs.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CHSC71477  Downingia bacigalupii Vernon H. Oswald; Lowell Ahart 1998-7-21 9363 Siskiyou Between Weed and Macdoel on Hwy. 97 0.9 mi southwest of Tennant Rd. In a roadside meadow. 1188 Comment
  NY185257  Draba carnosula H. E. Brown 1897-7-15 443 Siskiyou Collected north side of Mount Shasta 1524.0 Comment
  CAS-BOT-BC41317  Draba pterosperma W. R. Dudley 1899-8-24 s.n. Siskiyou Top of Craggy Peak. Comment
  SEINET4326819 Image available Draba verna Louis C. Wheeler 1935-4-18 3430 Siskiyou Siskiyou Mountains, Greenhorn Creek 1006 Comment
  RSA50232  Drymocallis glandulosa var. glandulosa E. K. Balls 1949-7-9 13940 Siskiyou 8.3 miles from Etna on road to Sawyer's Bar. 1006 Comment
  UC545672  Drymocallis rhomboidea Louis C. Wheeler 1934-6-18 2732 Siskiyou West Fork Cottonwood Creek Siskiyou Mts., West Fork Cottonwood Creek 1432 Comment
  UCD40946  Echinops sphaerocephalus Gene Cakin 1951-9-1 s.n. Siskiyou Tule Lake Basin. Comment
  CAS-BOT-BC113417  Eleocharis bella W. R. Ernst 1958-8-8 286 Siskiyou Grass Lake area, ca. 32 mi S or Oregon State line on Hwy 97. Comment
  POM144790  Eleocharis bella E. B. Copeland 1903-8-12 3825 Siskiyou Sisson. Comment
  CHSC111065  Eleocharis decumbens Barbara L. Wilson 2011-8-23 16886 Siskiyou Toad Lake 2117 Comment
  JEPS19432  Eleocharis obtusa Geo. D. Butler 1908-8-28 7 Siskiyou Oro Fino Comment
  POM215742  Elymus elymoides L. C. Wheeler 1934-8-6 3057 Siskiyou Siskiyou Mts.; Rock Gulch off Jaynes Canyon; Mt. Diablo Mer. 1829 Comment
  UC618876  Elymus elymoides subsp. elymoides W. Bridge Cooke 1938-7-15 11266 Siskiyou Wagon Camp Mount Shasta (around outer portions of meadows) 1737 Comment
  HSC4774  Elymus elymoides var. californicus William J. Ferlatte 1966-8-18 427 Siskiyou Willow Creek Trail. 2226 Comment
  HSC67788  Elymus elymoides var. elymoides J. O. Sawyer, J. Cole 1980-7-20 3754 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  HSC98140  Elymus elymoides var. elymoides J. O. Sawyer 1969-6-12 913 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC48284  Elymus glaucus J. O. Sawyer, K. T. Stillman 1978-7-6 3303 Siskiyou Along Happy Camp - O'Brien Rd., above Louse Creek. Comment
  HSC51628  Elymus glaucus Marvin Butler 1971-8-11 287 Siskiyou Near Marv's Meadow, close to the town of Cave Junction 2073 Comment
  CHSC61571  Elymus glaucus subsp. glaucus L. P. Janeway 1983-9-11 682 Siskiyou Siskiyou Mountains; at Poker Flat. Southwest side of lower portion of the meadow. 1524 Comment
  HSC91443  Elymus spicatus Jennifer Whipple 1977-8-6 2220 Siskiyou Dobkins Lake drainage on E facing slope above Dobkins Lake 2256 Comment
  CAS-BOT-BC204304  Elymus trachycaulus subsp. trachycaulus Geo. D. Butler 1909-6-28 850 Siskiyou Near Yreka Comment
  CHSC91356  Elytrigia pontica subsp. pontica Lowell Ahart; John Dittes 2005-6-10 12077 Siskiyou On the north side of the Shasta River, about 100 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  POM248138  Epilobium anagallidifolium W. Bridge Cooke 1939-8-24 13902 Siskiyou Mount Shasta: West branch of Squaw Valley Creek in the Heather Meadow. Comment
  RSA34679  Epilobium anagallidifolium W. Bridge Cooke, V. G. Cooke 1946-8-29 17615 Siskiyou Basin above Panther Creek Meadows Mount Shasta 2744 Comment
  UC204381  Epilobium ciliatum subsp. ciliatum A. A. Heller 1914-8-25 11705 Siskiyou near Deetz Station (opposite Black Butte) 1158 Comment
  SEINET6635778 Image available Epilobium ciliatum subsp. glandulosum H. E. Brown 1897-1 552 Siskiyou S side of Mount Shasta 1524 Comment
  SEINET9720242  Epilobium densiflorum G. D. Butler 1910-6-29 1614 Siskiyou Yreka Creek Comment
  HSC96312  Epilobium glaberrimum subsp. fastigiatum Gordon Leppig 1998-8-14 1019 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  UCD80885  Epilobium glaberrimum subsp. fastigiatum Robert E. Preston 2001-6-23 1556 Siskiyou Klamath National Forest, N slope of Rainbow Mtn. 1767 Comment
  HSC82257  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1980-7-20 6175 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  POM171593  Epilobium hallianum Doris K. Kildale 1929-7-20 8609 Siskiyou Southeast slope of Preston Peak 1951 Comment
  POM258623  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1940-7-5 15291 Siskiyou Mt. Shasta: in the meadow at Wagon Camp 1738 Comment
  POM259014  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1940-8-8 15439 Siskiyou Mount Shasta: Along Squaw Valley Creek 2439 Comment
  SBBG25890  Epilobium minutum D. Myrick 1966-8-9 1506 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  HSC29166  Epilobium oregonense Frederick W. Oettinger, R. F. Thorne 1969-8-6 1242 Siskiyou Marble Mtn. Wilderness Area, Pine Lake 1883 Comment
  UC125532  Epilobium siskiyouense Dr. E. B. Copeland 1903-9-7 3857 Siskiyou foot of glacier on se ridge Mt. Eddy Comment
  SEINET12195418  Epilobium siskiyouense Unknown 1986-1 60353 Siskiyou SW of Cook and Green Pass, NE slopes of Kangaroo Mt., upper slopes of Hello C[an]y[o]n 1829 Comment
  CAS-BOT-BC56953  Equisetum arvense Barbe 1957-7-13 373 Siskiyou Big Flat Public Camp, Klamath National Forest 1524 Comment
  CAS-BOT-BC56959  Equisetum arvense Edward Lee 1934-8-13 1077 Siskiyou Happy Camp - Waldo (Oregon) Road, Watershed of West Branch of Indian Creek, Klamath Nat. For. 1371 Comment
  CAS-BOT-BC57517  Equisetum telmateia Carl B. Wolf 1927-8-27 1126 Siskiyou On the Klamath River, 6 mi. below Happy Camp Comment
  HSC618  Eremogone congesta William J. Ferlatte 1966-7-7 199 Siskiyou Caribou Basin 1982 Comment
  HSC619  Eremogone congesta William J. Ferlatte 1966-8-5 330 Siskiyou N side of Caribou Mtn. 1982 Comment
  HSC65574  Eremogone congesta R. White 1977-7-7 116 Siskiyou Devil's Punchbowl, NE shore 1433 Comment
  HSC69204  Eremogone congesta var. congesta Maralyn A. Renner 1980-9-1 2684 Siskiyou Bear Mtn. 1936 Comment
  CAS-BOT-BC168327  Eremogone congesta var. congesta Doris K. Kildale 1928-7-4 5483 Siskiyou Summit of divide between Sawyers Bar and Etna Comment
  CHSC30403  Ericameria bloomeri A. W. Ratcliff 1979-8-2 Siskiyou Shasta-Trinity National Forest. Bear Springs. 1536 Comment
  CHSC30758  Ericameria bloomeri M. S. Taylor; J. Prouty, E. Heinitz 1980-8-18 3257 A Siskiyou Ca. 50 ft e of Hwy 15, ca. 3 mi n of its jct with Hwy 89, ca. 17 mi e of McCloud. Comment
  RSA168828  Ericameria bloomeri Joseph P. Tracy 1949-9-15 18557 Siskiyou Near top, Blue Ridge, on road between Cecilville and Sawyer's Bar 1585 Comment
  SEINET5727123 Image available Ericameria bloomeri Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7707 Siskiyou Mt. Shasta City. Collected along Road 89, E of Mt. Shasta City.; Mt. Shasta City 1338 Comment
  UC630401  Ericameria bloomeri Annetta Carter 1939-8-21 1475 Siskiyou near crest of peak above se end of Taylor Lake (12 mi sw of Etna); Salmon Mountains 2286 Comment
  RSA237448  Ericameria greenei Frederick W. Oettinger 1968-8-19 584 Siskiyou Meadows at Gap, English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  UC1408924  Ericameria greenei Frederick W. Oettinger 1968-8-22 590 Siskiyou English Peak Salmon Mountains, Marble Mountain Wilderness Area 2225 Comment
  JEPS117569  Ericameria nauseosa var. oreophila 2010-7-30 16970 Siskiyou Shasta Big Springs Ranch, 2.6 air miles northwest of Big Springs Lake, 3.9 air miles southeast of Grenada, 6.3 air miles northeast of Dwinnel Dam. 779 Comment
  CAS-BOT-BC299466  Ericameria nauseosa var. speciosa Louis C. Wheeler 1934-8-26 3223 Siskiyou Trapper Cr., Siskiyou Mts. 1859 Comment
  HSC29198  Ericameria nauseosa var. speciosa Frederick W. Oettinger 1968-8-16 533 Siskiyou Marble Mtn. Wilderness Area: Near summit of 'Little Medicine Mtn.' (N of Hancock Lake) 2104 Comment
  HSC92691  Ericameria nauseosa var. speciosa Jennifer Whipple 1978-10-6 2413 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2256 Comment
  UCD131490  Ericameria nauseosa var. speciosa P. B. Kennedy 1922-8-29 s.n. Siskiyou range back of Fritz Young Ranch, Scott Valley. Comment
  CAS-BOT-BC293377  Erigeron acris var. kamtschaticus Wm. Bridge Cooke 1939-8-24 13911 Siskiyou Mount Shasta. On the east red ridge west of and above Panther Creek Meadows Comment
  SEINET10813459  Erigeron aliceae Andrew Townesmith, Karen M. Meyer 2007-8-1 Townesmith 884 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway). T41N R6W near sections 28 and 33. 1983 Comment
  UC1409461  Erigeron aliceae F. W. Oettinger and R. F. Thorne 1969-8-4 1185 Siskiyou meadow n of Tobacco Lake; Salmon Mts., English Peak area, Red Fir Forest 1889 Comment
  HSC96679  Erigeron bloomeri var. bloomeri Thomas W. Nelson, Susan Erwin 2004-6-3 9223 Siskiyou Forest Service Rd. 40N08 at junction with FS Rd.44N44 1696 Comment
  CHSC62178  Erigeron cervinus Wayne Rolle 1991-8-1 485 Siskiyou Siskiyou Mountains. On east side of Pyramid Peak. Between small lake and the small pond above it. 1615 Comment
  HSC19165  Erigeron cervinus J. O. Sawyer 1969-7-10 1284 Siskiyou East facing slope above Sugar Lake 2226 Comment
  UC127714  Erigeron compositus Harley P. Chandler 1901-6-1 1672 Siskiyou Marble Mountain North Coast Ranges, Marble Mountain 2438 Comment
  CAS-BOT-BC297183  Erigeron concinnus var. concinnus A. A. Heller 1905-6-19 8063 Siskiyou Along the railroad near Grenada station Comment
  UC1299458  Erigeron eatonii var. plantagineus Freed W. Hoffman 1948-7-12 2459 Siskiyou Little Shasta to Mt. Hebron road 10 mi w Mt. Hebron 1615 Comment
  HSC69353  Erigeron glacialis var. glacialis Maralyn A. Renner 1980-8-21 2578 Siskiyou Kidd Creek 2043 Comment
  CAS-BOT-BC295427  Erigeron inornatus var. calidipetris W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Comment
  UC60966  Erigeron inornatus var. inornatus Geo. B. Grant 1902-9-3 5173 Siskiyou Mount Shasta, Sisson Comment
  POM56541  Erigeron inornatus var. inornatus E. B. Copeland 1903-7-3 3531 Siskiyou Klamathon. Comment
  CAS-BOT-BC295461  Erigeron klamathensis John Thomas Howell 1939-8-6 15101 Siskiyou Elk Mt., Marble Mts. Comment
  UC1118163  Erigeron linearis R. D. Roseberry 1936-5-21 Siskiyou 1 mi ne Whitney Butte; Dorris Quad., Modoc Lava Beds National Monument Comment
  POM211820  Erigeron petrophilus var. viscidulus L. C. Wheeler 1934-8-24 3219 Siskiyou Trapper Creek. 1860 Comment
  RSA259554  Erigeron petrophilus var. viscidulus J. P. Smith, J. O. Sawyer 1973-8-14 7305 Siskiyou On trail from Campbell Lake to Cliff Lake. 1828 Comment
  CAS-BOT-BC300090  Erigeron philadelphicus William M. Hiesey 1947-8-23 554 a Siskiyou Beaver Creek Public Camp Ground, Klamath National Forest, 5 mi. north of the Klamath River (10 miles N.W. of Gottville) 701 Comment
  UC455839  Erigeron philadelphicus var. philadelphicus I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  CAS-BOT-BC300115  Erigeron pumilus var. intermedius J. H. Chastain 1917-6-1 s.n. Siskiyou Gazelle Comment
  HSC13522  Eriodictyon californicum C. B. Wolf 1927-8-26 1001 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  RSA24218  Eriodictyon californicum Carl B. Wolf 1940-12-12 9799 Siskiyou Siskiyou Mountains 1 mile above Oak Knoll Ranger Station on road to Dry Lake Lookout. 762 Comment
  CAS-BOT-BC250071  Eriogonum compositum var. compositum Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh Lake Comment
  JEPS95825  Eriogonum compositum var. compositum Vernon H. Oswald and L. Ahart 1999-7-5 9803 Siskiyou Gazelle-Callahan Hwy. 11.1 mi west of Gazelle, 0.4 mi east of summit of Gazelle Mtn.: T42N R7W Sect. 34, 3800 ft, oak woodland 1158 Comment
  CAS-BOT-BC250068  Eriogonum compositum var. compositum Lewis S. Rose 1945-6-23 45179 Siskiyou Junction of Shasta River & Klamath River 624 Comment
  CAS-BOT-BC242531  Eriogonum congdonii James L. Reveal; Darin S. Reveal 1978-8-8 4802 Siskiyou Along the road to Big Carmen Lake, about 1 mile north of Scott Mountain Summit on California Highway 3, on ridge 0.2 mile southeast of the road toward Scott Mountain 1706 Comment
  SEINET6179443  Eriogonum diclinum James L. Reveal, Mark L. Reveal 1975-8-15 3856 Siskiyou Siskiyou Mountains, Klamath National Forest, along the Dry Lake Lookout Road (Forest Service Road 40S01), 0.5 mi W of Dry Lake Lookout near the Buckthorn Trail.; 0 2042 Comment
  JEPS84299  Eriogonum elatum var. elatum L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6331 A Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1/2 air mi from Red Butte) 1730 Comment
  RSA15652  Eriogonum elatum var. villosum Carl B. Wolf 1927-8-26 1002 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  CAS-BOT-BC255758  Eriogonum elatum var. villosum L. R. Abrams 1922-8-6 9907 Siskiyou Between summit and Hornbrook Comment
  CAS-BOT-BC261216  Eriogonum hirtellum James L. Reveal; Darin S. Reveal 1978-8-9 4810 a Siskiyou Along the dirt road from near Happy Camp to Baldy Mountain Lookout (USFS #17N11), 0.5 mile south of the junction of 17N23 near the head of Doolittle Creek 1280 Comment
  HSC26154  Eriogonum luteolum var. luteolum J. P. Smith, J. O. Sawyer 1972-9-14 5802 Siskiyou Miner's Creek Rd. just S of French Creek Rd. between Callahan and Etna. 915 Comment
  UC912851  Eriogonum luteolum var. luteolum A. A. Heller 1917-9-7 12975 Siskiyou above mouth of the Shasta River; Klamath River Comment
  CAS-BOT-BC263660  Eriogonum luteolum var. luteolum Geo. D. Butler 1908-8-30 199 Siskiyou Light Hill Road near Fort Jones Comment
  CAS-BOT-BC94469  Eriogonum marifolium R. C. Wenk 2005-7-19 332 Siskiyou Along Pacific Crest Trail, near top of pass below Mt. Eddy 2438 Comment
  JEPS56784  Eriogonum marifolium Willis L. Jepson 1894-8-4 Siskiyou Timber line, Mt. Shasta Mt. Shasta Comment
  JEPS94393  Eriogonum marifolium Vernon Oswald and Lowell Ahart 1997-7-28 8782 Siskiyou Forest Route 56 (42N56) 3.7 mi e of Forest Route 49 (edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave); Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave 1755 Comment
  RSA393650  Eriogonum marifolium George B. Grant 1902-9-7 5091 Siskiyou Mt. Shasta 2439 Comment
  CAS-BOT-BC263192  Eriogonum marifolium var. cupulatum G. A. Coleman 1901-8-17 s.n. Siskiyou On Red Butte, Mt. Shasta 2560 Comment
  UC1032176  Eriogonum microthecum var. laxiflorum M. H. Mitchell 1936-5-9 12 Siskiyou se slope of Schonchin Butte Modoc Lava Beds Natl. Monument, Dorris Quadrangle, Schonchin Comment
  CAS-BOT-BC271026  Eriogonum nudum var. deductum Isabelle C. Kimber 1934-6-9 3 Siskiyou Mt. Shasta 1219 Comment
  RSA495516  Eriogonum nudum var. nudum Elaine Joyal, D. Mehlman 1988-6-25 1279 Siskiyou Happy Camp - Takilma road at turn-off to Bolan Lake 1524 Comment
  CAS-BOT-BC269741  Eriogonum nudum var. oblongifolium Louis C. Wheeler 1935-6-29 3624 Siskiyou Yreka 807 Comment
  CAS-BOT-BC269747  Eriogonum nudum var. oblongifolium P. A. Munz 1952-7-3 17919 Siskiyou Ft. Goff Public Camp, Klamath River 365 Comment
  HSC17320  Eriogonum nudum var. pubiflorum R. C. Wunner 1965-6-29 301 Siskiyou Lava Beds National Monument, near upper Caldwell Ice Cave entrance 1433 Comment
  CAS-BOT-BC252961  Eriogonum pyrolifolium var. pyrolifolium Peter Kamb 1949-8-25 1490 Siskiyou Southwest slope of Mt. Shasta above Horse Camp 2895 Comment
  CHSC1329  Eriogonum pyrolifolium var. pyrolifolium K. Jaekel; N. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. Comment
  HSC43443  Eriogonum siskiyouense Jennifer Whipple 1977-8-5 2187 Siskiyou Slopes near Little Crater Lake 2195 Comment
  JEPS82246  Eriogonum siskiyouense Roger Raiche 1983-8-14 30614 Siskiyou fell-field slope near summit of road to Mt. Eddy (<road> A.K.A. road to Dead Fall Meadow, Park Creek Rd. or Forest Rd. 42N17) 2133 Comment
  JEPS96721  Eriogonum siskiyouense Dean W. Taylor 1997-6-12 16055 Siskiyou mouth of Willow Creek (ca. 4 miles west of Gazelle); Scott Mountains; hillslopes at base of Scott Mountains at mouth of Willow Creek, Shasta Valley); ca. 4 miles west of Gazelle 944 Comment
  CAS-BOT-BC269970  Eriogonum spergulinum var. reddingianum Wm. Bridge Cooke 1954-7-5 s.n. Siskiyou Military Pass road, Mt. Shasta 1828 Comment
  SEINET13761715  Eriogonum sphaerocephalum var. halimioides R. R. Halse 2016-5-29 9723 Siskiyou Along Hilt Road, E of Hilt. 902 Comment
  SEINET3160080  Eriogonum strictum var. proliferum G. D. Butler 1910-6-21 1597 Siskiyou Yreka Comment
  JEPS108711  Eriogonum ternatum Thomas W. Nelson and Jane P. Nelson 2006-8-4 9465 Siskiyou Scott Mountain S of junction of Forest service Rd. 40N08 and 44N44 ca 1/2 mi E of junction of State Route 3 and Forest Service Rd. 40N08E side of North-South running ridge. 1670 Comment
  JEPS84293  Eriogonum ternatum L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6346 Siskiyou ca 1/2 mi se Red Butte (slope e of road; ca. 7 mi nne of Seiad Valley, sw of Cook and Green Pass) 1730 Comment
  SDSU6747  Eriogonum ternatum D. F. Howe 1962-8-4 3384 Siskiyou Baldy Mountain. 1433 Comment
  SBBG1641  Eriogonum umbellatum H. and M. Dearing 1938-6-28 2184 Siskiyou Mt Shasta 1524 Comment
  CAS-BOT-BC267942  Eriogonum umbellatum Maralyn A. Renner 1980-6-24 1059 Siskiyou Klamath National Forest. Ridge 1/2 mile east of Cook and Green Pass 1554 Comment
  SEINET11935780  Eriogonum umbellatum Unknown 1986-1 60335 Siskiyou Goosenest Mt., open areas in red fir forest 2249 Comment
  CAS-BOT-BC267989  Eriogonum umbellatum var. argus A. A. Heller 1914-8-28 11742 Siskiyou East side of Mt. Eddy 2194 Comment
  UC163831  Eriogonum umbellatum var. argus Geo. D. Butler 1908-8-9 214 Siskiyou summit s Marble Valley Comment
  UC1211913  Eriogonum umbellatum var. dumosum Roy L. Taylor 1960-6-12 4441 Siskiyou 1 mi w junction Hwy. 96 (Klamath River rd.) and Hwy. 99 (n of Yreka, hillsides above Klamath River); Klamath River Comment
  JEPS85704  Eriogonum umbellatum var. humistratum Roger Raiche 1983-8-14 30613 Siskiyou fell-field slope near summit of road to Mt. Eddy ((A.K.A. road to Dead Fall Meadow, Park Creek Road, or Forest Road 42N17)) 2133 Comment
  UC83633  Eriogonum umbellatum var. modocense Dr. E. B. Copeland 1903-7-6 3496 Siskiyou Hornbrook Comment
  CAS-BOT-BC265199  Eriogonum umbellatum var. nevadense A. A. Heller 1922-7-14 13684 Siskiyou Near Pumice Stone Mountain Comment
  SEINET4856202  Eriogonum ursinum var. erubescens Unknown 2002-8-5 8371 Siskiyou Scott Bar Mountains, n and w slope and ridge of Deadwood Baldy Peak, Klamath National Forest. 1675 Comment
  CAS-BOT-BC262381  Eriogonum vimineum Elmer I. Applegate 1935-8-3 10007 Siskiyou North base of Caldwell Butte, Lava Beds National Monument Comment
  HSC91336  Eriophorum crinigerum Jennifer Whipple 1977-7-21 2018 Siskiyou Near Durney Lake 2073 Comment
  RSA238942  Eriophorum crinigerum Frederick W. Oettinger 1968-9-7 767 Siskiyou Just N of Tobacco Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UC1265449  Eriophorum crinigerum Frederick W. Oettinger 1968-9-7 767 Siskiyou just n. Tobacco Lake; Salmon Mts., High Lake Basins, English Peak vicinity, Marble 1889 Comment
  SEINET7073526  Eriophyllum lanatum A. G. Vestal 1963-6-3 s.n. Siskiyou Lava boulders south of Gazelle. UTM Zone 10, 544048mN, 4590451mN. Coordinate datum: NAD27. Comment
  OBI53732  Eriophyllum lanatum David J. Keil 1992-7-19 23465 Siskiyou Klamath NF. Salmon Mtn Summit on Sawyers Bar Rd, SW of Etna 1816 Comment
  POM302176  Eriophyllum lanatum Ynez Whilton Winblad 1941-6-20 s.n. Siskiyou Between Weed and Yreka Comment
  SEINET10672044  Eriophyllum lanatum Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 684 Siskiyou 11 mi. N of Weed, on U.S. Hwy. 97; decomposed lava, sandy on slight S-E facing slope. 1250 Comment
  CAS-BOT-BC301122  Eriophyllum lanatum var. achilleoides Alice Eastwood 1912-8-30 1966 Siskiyou Mount Eddy Comment
  JEPS34499  Eriophyllum lanatum var. achilleoides W. L. Jepson 1940-6-23 20004 Siskiyou n of Mt. Shasta; Andesite station 975 Comment
  UC195367  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-22 12488 Siskiyou e side Mt. Eddy Comment
  UC507155  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-7-6 E 122 Siskiyou 6.5 mi n of Dorris Comment
  CHSC99704  Eriophyllum lanatum var. lanceolatum L. P. Janeway 2008-7-24 9486 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. 2050 Comment
  HSC74872  Eriophyllum lanatum var. lanceolatum J. P. Smith, Jennifer Whipple 1978-7-2 9972 Siskiyou Klamath National Forest, ridge trail E of Cook and Green Pass 1341 Comment
  JEPS80585  Eriophyllum lanatum var. lanceolatum Gilbert Muth 1965-7-29 134 Siskiyou trail to Marble Mountain Lookout; Marble Mt. Wilderness Area 1792 Comment
  RSA264987  Eriophyllum lanatum var. lanceolatum G. L. Clifton 1975-7-28 5756 Siskiyou Near Cook and Green Pass near the Seiad Valley 1646 Comment
  HSC62632  Erysimum capitatum Stansell 1928-6-18 Siskiyou Youngs Valley Comment
  CAS-BOT-BC65378  Erysimum capitatum R. C. Wenk 2005-7-15 235 Siskiyou Above South Fork Salmon River, along Yellow Rose Mine trail. 2042 Comment
  RSA59507  Erysimum capitatum E. K. Balls 1950-5-16 14707 Siskiyou About Caldwell Caves, Lava Beds Nat l Monument. 1555 Comment
  JEPS80560  Erysimum perenne Gilbert Muth 1965-8-6 182 Siskiyou trail on backside of mt Marble Mt. Wilderness Area, Black Mountain 1981 Comment
  CHSC71502  Erythranthe inflatula Vernon H. Oswald; Lowell Ahart 1998-7-21 9359 Siskiyou Northeast of Weed, east of Grass Lake, and west of Bray on Old State Highway 0.8 mi east of Tennant Rd. 1417 Comment
  SEINET14374345  Erythranthe primuloides G. D. Butler 1910-7-13 1770 Siskiyou Shackleford Creek. 1219 Comment
  UC13824  Erythronium grandiflorum Harley P. Chandler June, 1901 1619 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  RSA237910  Erythronium grandiflorum subsp. grandiflorum Frederick W. Oettinger 1967-7-20 195 Siskiyou Northeast end of Crapo Peak Ridge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area 2186 Comment
  CHSC86257  Erythronium klamathense Martin J. Lenz 2003-5-1 2 Siskiyou North Fork Bear Creek, 3.1 mi NW of Pondosa. UTM: Zone 10. 606070E 4564100N. 1276 Comment
  UCSB24983  Erythronium klamathense Keefe, Joseph 1967-7-11 Siskiyou Along trail to Little Castle Lake, 1.0 mile southeast of Castle Lake, 10 miles south of city of Mt. Shasta 1828 Comment
  HSC63071  Erythronium oregonum subsp. leucandrum David Wheeler 1979-4-1 3 Siskiyou Matthews Creek Campground, S Fork of the Salmon River, between Cecilville and Forks of the Salmon Comment
  HSC68355  Eschscholzia californica J. P. Smith 1973-5-5 6541 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC403673  Eschscholzia californica W. R. Ernst 1958-8-11 301 Siskiyou Town of Mt. Shasta, between Highway 99 and railroad station Comment
  SDSU829  Eschscholzia californica D. F. Howe 1961-8-3 3130 Siskiyou 35.3 miles east of Happy Camp, #96, Klamouth Valley. 457 Comment
  RSA184656  Eucephalus ledophyllus var. covillei Clare B. Hardham 1965-08 13005 Siskiyou Near Cudahy Lakes, Marble Mountains 1524 Comment
  CAS-BOT-BC310460  Eucephalus ledophyllus var. ledophyllus J. P. Smith; J. O. Sawyer 1973-8-14 7318 Siskiyou Hillside west of Cliff Lake 1981 Comment
  CAS-BOT-BC202762  Euonymus occidentalis Ira L. Wiggins 1955-7-21 13438 Siskiyou Rush Creek Trail 2 mi. above Mt. View Ranch 1097 Comment
  CDA34223  Euphorbia oblongata Jodi Aceves 2010-8-3 PDR# 1414045 Siskiyou At Klamath River, upstream from Somesbar. 0 Comment
  CAS-BOT-BC310630  Eurybia radulina L. E. Smith 1912-7-1 s.n. Siskiyou McCloud Comment
  CAS-BOT-BC310639  Eurybia radulina Doris K. Kildale 1929-8-7 8953 Siskiyou Base of K_by [?] Peak 457 Comment
  HSC25461  Festuca idahoensis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5657 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  RSA582088  Festuca idahoensis L. C. Wheeler 1934-6-7 2658 Siskiyou North Hungry Creek. 1220 Comment
  UC796503  Festuca idahoensis Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11797 Siskiyou s of Callahan (Scott Mountain Road) Comment
  CAS-BOT-BC278876  Festuca occidentalis Alice Eastwood 1923-5-27 11951 Siskiyou Shasta Springs, on road to McCloud Comment
  HSC19418  Festuca occidentalis J. O. Sawyer 1969-7-26 1576 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  HSC26623  Festuca occidentalis J. P. Smith, Steve Selva 1970-6-16 3990 Siskiyou 6 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1280 Comment
  UC818047  Festuca occidentalis A. A. Heller 1915-7-18 12123 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  UCD66131  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3614 Siskiyou 5 miles NE of Happy Camp above Klamath River. Comment
  UC723010  Festuca roemeri C. L. Hitchcock and J. S. Martin 1939-7-9 5321 Siskiyou 0.5 mi se Kings Castle; Marble Mts. 1828 Comment
  UCD66266  Festuca roemeri A. H. Murphy 1959-7-22 59 I Siskiyou Shasta National Forest. Summit between Bear Creek and Toad Lake. 2346 Comment
  UCD66277  Festuca roemeri Rimo Bacigalupi 1959-7-2 7232 Siskiyou Big Flat Campground, headwaters of South Fork of the Salmon River, near north base of Caribou Mtn. and just south of low divide (Trinity County boundary) separating Coffee Creek drainage from that of the Salmon River. 1508 Comment
  RSA239112  Festuca subulata Frederick W. Oettinger 1969-9-4 1629 Siskiyou East side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  HSC92060  Floerkea proserpinacoides Jennifer Whipple 1976-7-2 1282 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  JEPS44870  Fragaria vesca W. L. Jepson Jul 1894 13874 Siskiyou stage road between Sisson and Upton Comment
  HSC69376  Fragaria virginiana J. O. Sawyer, J. Cole 1980-7-19 3680 Siskiyou Near FS Rd. 45N0 2018 Comment
  RSA761385  Frasera Barbara Ertter 1990-7-14 9304 Siskiyou E side Mt. Eddy ca 4 airmiles due W of Mt. Shasta City, at streamlet near end of FR 41N53 ca 1 mi N of Morgan meadows. 1677 Comment
  POM76612  Frasera albicaulis var. nitida Geo. D. Butler 1910-6-2 1451 Siskiyou Near Yreka Comment
  SEINET8584501  Frasera albicaulis var. nitida G. D. Butler 1910-6-2 1451 Siskiyou Dry land near Yreka. Comment
  CAS-BOT-BC223586  Fraxinus latifolia L. R. Short 1933-6-8 33 Siskiyou Klamath National Forest. Klamath River bank 701 Comment
  JEPS82476  Fritillaria affinis Gilbert Muth 1966-7-8 356 Siskiyou Marble Mountain Wilderness Area, Marble Valley Meadow Marble Valley Meadow Marble Valley Meadow; Marble Mountain Wilderness Area, Marble Valley Meadow 1792 Comment
  LA97840  Fritillaria atropurpurea J. M. Tucker; L. K. Mann 1963-7-7 3721 Siskiyou Paradise Lake, Marble Mountain Wilderness Area, ca. 0.25 mi. down the trail (N of) from the lake at the base of Kings Castle on the E side 1981 Comment
  HSC36901  Fritillaria recurva J. P. Smith 1974-5-26 7542 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC673166  Fritillaria recurva Lincoln Constance, Reed C. Rollins 1942-5-14 2925 Siskiyou 4 mi w of Yreka (Road to Walker Post Office); Klamath-Siskiyou Region 1219 Comment
  CAS-BOT-BC504465  Fritillaria recurva L. E. Smith 1913-4-26 124 Siskiyou Dunsmuir Comment
  CAS-BOT-BC504468  Fritillaria recurva Geo. D. Butler 1909-4-14 596 Siskiyou Humbug Road Comment
  RSA607099  Fritillaria recurva Louis C. Wheeler 1935-4-17 3427 Siskiyou Soap Creek, Siskiyou Mountains 1037 Comment
  HSC69398  Galium bifolium Maralyn A. Renner 1980-8-8 2449 Siskiyou Rattlesnake Meadow 1646 Comment
  RSA238701  Galium bifolium Frederick W. Oettinger 1969-7-9 937 Siskiyou NW of upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness. 1799 Comment
  JEPS93919  Galium bolanderi Vernon H. Oswald and Lowell Ahart 1998-8-3 9412 Siskiyou Kangaroo Lake Road (USFS 41N08) 3.5 mi se of Gazelle-Callahan Road; Kangaroo Lake Road 1493 Comment
  JEPS52699  Galium bolanderi G. L. Stebbins Jr. 1963-7-5 6131 Siskiyou 6 mi ne Sawyer's Bar; north Fork of Salmon River, Findley Camp 792 Comment
  UC585122  Galium bolanderi E. B. Babcock and G. L. Stebbins Jr. 1936-6-13 1989 Siskiyou e and ne slope of spur of ridge above Sulloway Creek (about 1 1/2 mi w); Rainbow Ridge 1180 Comment
  JEPS74702  Galium grayanum J. M. Tucker, L. K. Mann and S. L. Holloway 1963-8-18 3755 Siskiyou se-facing slope on sw ridge of mt. Marble Mountain Wilderness Area, Black Mountain (Black Marbl 2133 Comment
  UCD121771  Galium grayanum A. H. Murphy 1959-7-21 59 G Siskiyou Deadfall Lake area. Shasta National Forest. 2225 Comment
  UCD121822  Galium muricatum Daryl Koutnik; Martha Townsend 1979-9-10 s.n. Siskiyou Southwest of Callahan on Cecilville Road. 975 Comment
  JEPS125865  Galium porrigens var. porrigens Dean W. Taylor 1996-7-10 15771 Siskiyou Head of Facey Gulch on Hayden Ridge; easterly watershed divide of Scott Valley, about 10 air miles E of Etna Comment
  HSC44379  Galium triflorum Maralyn O'Meara 1973-6-25 236 Siskiyou Music Creek 1463 Comment
  CAS-BOT-BC182227  Garrya fremontii R. F. Thorne 1969-8-23 63348 Siskiyou Klamath National Forest, Salmon Mountains, Ma4rble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  CAS-BOT-BC182249  Garrya fremontii Dorothy Parker 1948-2-27 215 Siskiyou South slope, in Plowman's Valley 1219 Comment
  CAS-BOT-BC182267  Garrya fremontii Wm. Bridge Cooke 1941-9-16 16319 Siskiyou Along the Castle Lake Road 1219 Comment
  CAS-BOT-BC182278  Garrya fremontii A. A. Heller 1921-6-25 13556 Siskiyou on the lower slopes of Black Butte Comment
  HSC40240  Garrya fremontii J. P. Smith 1976-5-5 8690 Siskiyou Road between Sawyers Bar and Somes Bar 488 Comment
  HSC69736  Garrya fremontii Maralyn A. Renner 1980-6-26 1281 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  POM78084  Garrya fremontii Geo. D. Butler 1910-6-17 1565 Siskiyou Humbug Mountain Comment
  HSC19178  Gaultheria humifusa J. O. Sawyer 1968-7-9 452 Siskiyou W of Little Duck Lake. 1936 Comment
  CAS-BOT-BC56289  Gaultheria ovatifolia W. R. Dudley 1899-7-6 s.n. Siskiyou Bartlett trail to Prestons Peak Comment
  CAS-BOT-BC478506  Gayophytum C. G. Pringle 1881-8-17 s.n. Siskiyou Mount Shasta 2438 Comment
  HSC183  Gayophytum diffusum subsp. parviflorum William J. Ferlatte 1966-8-2 237 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  UC114767  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1956-7-19 30311 Siskiyou below Wagon Camp; Mt. Shasta Comment
  HSC16399  Gayophytum diffusum subsp. parviflorum R. C. Wunner 1965-8-21 412 Siskiyou Lava Beds N.M., N boundary area near Hovey Pt. 1220 Comment
  POM38543  Gayophytum diffusum subsp. parviflorum Geo. D. Butler 1908-8-8 163 Siskiyou Near lake at head of West Fork of Woolly Creek Comment
  RSA34393  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1947-8-9 17791 Siskiyou Around Horse Camp, Mount Shasta. 2439 Comment
  SEINET4150938  Gayophytum heterozygum G. D. Butler 1910-7-3 1630 Siskiyou Goosenest foothills 1219 Comment
  UC164084  Gayophytum heterozygum Geo. D. Butler 1910-7-3 1630 Siskiyou Goosenest foothills 1219 Comment
  POM258615  Gayophytum heterozygum W. Bridge Cooke 1940-7-12 15350 Siskiyou Mount Shasta: Along the Sisson Southern Trail near the S.S.Tr. spring. 1829 Comment
  RSA211350  Gayophytum heterozygum William J. Ferlatte 1966-8-18 413 Siskiyou Wooded area 3 miles south of Big Flat, Trinity Alps. 1585 Comment
  HSC91276  Gentiana calycosa Jennifer Whipple 1976-8-20 1731 Siskiyou Wagon Creek Drainage near Wagon Creek 2195 Comment
  SEINET10741189  Gentiana calycosa Andrew Townesmith, Karen M. Meyer 2007-8-1 Townesmith 878 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway). T41N R6W near sections 28 and 33. 1983 Comment
  UC123657  Gentiana calycosa Milo S. Baker 1893-6 Siskiyou near bank McCloud R. Comment
  NY297643  Gentiana plurisetosa C. C. Harris 1939-8-29 976 Siskiyou Half Moon Meadow, Marble Mountain Primitive Area 1670 Comment
  HSC85691  Gentianella amarella subsp. acuta J. P. Smith 1980-8-24 10340 Siskiyou Scott Mtn. Campground, head of Mule Creek 1646 Comment
  JEPS74461  Gentianopsis simplex W. J. Ferlatte 1966-8-16 368 Siskiyou between campground and S. Fork Salmon R. Big Flat; Trinity Alps 1524 Comment
  CAS-BOT-BC143592  Geum triflorum Dorothy Parker 1948-7-11 96 Siskiyou Sam's Neck, near Dorris 1371 Comment
  POM258025  Geum triflorum var. ciliatum C. Leo Hitchcock, J. S. Martin 1939-7-9 5326 Siskiyou 1/2 mile SE of King's Castle, Marble Mts. 1829 Comment
  RSA237278  Gilia capitata Frederick W. Oettinger 1967-6-28 144 Siskiyou Along road 1/2 mile south of Kelly Gulch toward Sawyers. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 625 Comment
  UC1258451  Gilia capitata subsp. capitata Maralyn A. Renner 1980-6-25 1096 Siskiyou West Fork Little South Fork Indian Creek, Klamath National Forest, Preston Peak Quad. Comment
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  UC1409305  Gilia capitata subsp. capitata Frederick W. Oettinger 1968-8-16 545 Siskiyou Red Hill n Hancock Lake (High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, Salmon Mountains, Western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1996 Comment
  UCSB10071  Gilia capitata subsp. capitata Hardham, Clare 1965-8-1 Siskiyou Cudahy Lakes; Marble Mountains 1219 Comment
  CAS-BOT-BC225352  Gilia latiflora subsp. davyi John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53572 Siskiyou Yreka 822 Comment
  CAS-BOT-BC282722  Glyceria elata Geo. D. Butler 1910-7-14 1781 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC282849  Glyceria striata Doris K. Kildale 1929-7-21 8752 Siskiyou Elk Lick, South Fork of Indian Creek 1219 Comment
  UC896940  Gnaphalium palustre A. A. Heller 1915-8-24 11211 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  SJSU11499  Hackelia californica M. D. Fleschner 1965-7-13 Siskiyou W of Deadhorse Summit of State Rte 89 c. 6 mi SW of Bartle Comment
  UCSB15833  Hackelia californica Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Mountains 1127 Comment
  HSC76635  Hackelia micrantha K. T. Stillman 1976-6-25 35 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  JEPS55568  Hackelia micrantha Ruby Van Deventer 1938-7-31 280 Siskiyou Poker Flat 1219 Comment
  UC54749  Hackelia micrantha Harley P. Chandler June, 1901 1604 Siskiyou near Marble Mountain; Northern Coast Ranges 1828 Comment
  RSA211230  Hackelia micrantha W. J. Ferlatte 1966-6-22 91 Siskiyou Along the South Fork of the Salmon River between the campground and Carter s. Trinity Alps. 1524 Comment
  SEINET12281175  Hackelia setosa J. P. Tracy 1951-1 19470 Siskiyou Near Oregon-California state line, on the Takilma-Happy Camp Road Comment
  UC1034054  Hastingsia alba W. Bridge Cooke 1941-8-8 16169 Siskiyou Wagon Camp Swamp , Wagon Camp Swamp (Mount Shasta) 1737 Comment
  UC30106  Hastingsia alba Harley P. Chandler June 1901 1616 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  CAS-BOT-BC504593  Hastingsia alba Lillian Mott 1977-7-4 32 LM76 Siskiyou Along road from Creek and Green Pass to Lily Pad Lake 1524 Comment
  CAS-BOT-BC504605  Hastingsia alba W. R. Dudley 1893-6-1 s.n. Siskiyou Peter Klinks Meadow Comment
  CAS-BOT-BC504608  Hastingsia alba Alice Eastwood 1912-7-17 1190 Siskiyou Sisson Comment
  CAS-BOT-BC504611  Hastingsia alba W. R. Dudley 1903-8-3 s.n. Siskiyou By upper Sacramento River, near Sissons Comment
  CAS-BOT-BC504617  Hastingsia alba Louis C. Wheeler 1934-7-3 2845 Siskiyou Klamath Forest, Soda Creek 1524 Comment
  CAS-BOT-BC508656  Hastingsia alba L. E. Smith 1913-6-18 373 Siskiyou Between Sisson and Castle Lake Comment
  POM148055  Hastingsia alba J. B. Feudge 1927-7-22 1630 Siskiyou Ney Spring, Mt. Shasta City Comment
  SEINET8480288  Hastingsia alba G. D. Butler 1910-6-5 1482 Siskiyou Shackleford Creek. Comment
  CAS-BOT-BC306734  Helenium bigelovii John M. Tucker 1963-8-17 3738 Siskiyou Lower Red Rock Valley, Marble Mountain Wilderness Area 1493 Comment
  CAS-BOT-BC306741  Helenium bigelovii Peter H. Raven 1956-9-5 10451 Siskiyou North Fork of Sacramento River 2194 Comment
  CAS-BOT-BC306747  Helenium bigelovii John Thomas Howell 1937-7-23 13344 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  JEPS93925  Helenium bigelovii Vernon H. Oswald and Lowell Ahart 1998-8-3 9414 Siskiyou Kangaroo Lake Road (USFS 41N08) 3.9 mi se of Gazelle-Callahan Road at its intersection with USFS 41N10 Kangaroo Lake Road 1554 Comment
  SBBG8384  Helenium bigelovii H. and M. Dearing 1939-6-30 3756 Siskiyou rd from Callahan to Trinity Alps 1828 Comment
  SFV3966  Helenium bigelovii J. M. Tucker 1963-8-17 3738 Siskiyou Marble Mountain Wilderness Area, Lower Red Rock Valley. At edge of Red Rock Creek in moist soil in vicinity of cabin. 1494 Comment
  UCD132697  Helenium bigelovii J. M. Tucker 1974-7-28 4306 Siskiyou Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  UCD132732  Helenium bigelovii Bruce G. Baldwin 1987-8-3 681 Siskiyou Shasta-Trinity National Forest, west of Mt. Shasta, 3.1 miles west of junction with Toad Lake Road along road to Gumboot Lake (along South Fork of the Sacramento River). Comment
  HSC92206  Helianthella californica var. shastensis Jennifer Whipple 1976-7-14 1481 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  CLARK-A1528-7876  Helianthus bolanderi John C. Roos 1948-9-1 3981 Siskiyou Fort Jones 853 Comment
  CAS-BOT-BC313464  Hemizonella minima J. H. Thomas 1954-5-13 4128 Siskiyou Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, Salmon Mountains, Klamath National Forest 1066 Comment
  HSC43383  Hesperochiron pumilus Maralyn O'Meara 1974-5-26 459 Siskiyou Along USFS Rd. 47N03 1524 Comment
  UCD110546  Hesperolinon micranthum Robert E. Preston 1995-6-22 895 Siskiyou Irongate Reservoir, on open slopes w of Mirror Cove. 731 Comment
  RSA238408  Heterocodon rariflorum Frederick W. Oettinger 1969-8-18 1427 Siskiyou Due N of Horse Range Lake outlet. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC311090  Heterotheca oregona var. rudis Geo. D. Butler 1909-10-3 976 Siskiyou Near Yreka Comment
  UC166203  Heterotheca oregona var. rudis Geo. D. Butler 1908-8-27 321 Siskiyou Oro Fino, old mining dump Oro Fino Comment
  CAS-BOT-BC312303  Heterotheca villosa var. minor G. Muth 1966-7-25 453 Siskiyou Marble Valley Comment
  HSC75653  Heuchera cylindrica J. O. Sawyer, R. J. Cole 1980-7-22 3876 Siskiyou 0.5 mi. S of Lava Camp 1829 Comment
  CAS-BOT-BC420709  Heuchera merriamii John Thomas Howell 1937-7-24 13400 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC94870  Heuchera merriamii R. C. Wenk 2006-9-2 555 Siskiyou Trail to Caribou Lakes from Big Flat Meadow, above Big Conrad Gulch 1950 Comment
  HSC55717  Heuchera rubescens G. L. Clifton, Griswold 1979-7-26 10149 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  CAS-BOT-BC424373  Heuchera rubescens A. A. Heller 1914-8-28 s.n. Siskiyou Mt. Eddy 2346 Comment
  CHSC1636  Heuchera rubescens var. glandulosa K. Jaekel 1939-6-29 Siskiyou Castle Lake. 1981 Comment
  CAS-BOT-BC319686  Hieracium albiflorum L. E. Smith 1913-7-1 449 Siskiyou Dunsmuir Comment
  HSC76732  Hieracium albiflorum K. T. Stillman 1976-8-7 390 Siskiyou Marble Mountain Wilderness Area, trail from Black Mtn. camp to Jump off Comment
  OBI55430  Hieracium albiflorum David J. Keil 1992-7-20 23489 Siskiyou Klamath NF, W of Fort Jones .Along forest rd 44N45, 2 mi S of Scott river rd 1000 Comment
  JEPS36598  Hieracium greenei Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou near Sisson; Region of the Upper Sacramento, Upton Comment
  UC1408810  Hieracium greenei Frederick W. Oettinger 1968-9-3 688 Siskiyou English Peak; Marble Mountain Wilderness Area 2011 Comment
  CAS-BOT-BC318647  Hieracium horridum John Thomas Howell 1937-7-24 13421 Siskiyou Caribou Basin, Salmon-Trinity Alps Comment
  UC572808  Hieracium horridum unknown 1937-8-17 9257 Siskiyou Mt. Shasta 2590 Comment
  UC922284  Hieracium parryi Annie M. Alexander and Louise Kellogg 1949-7-20 5812 Siskiyou n of Paradise Lake; Marble Mountains 1920 Comment
  HSC22178  Hieracium triste J. O. Sawyer 1969-8-3 1726 Siskiyou W of Little Duck Lake 2195 Comment
  UC618676  Hieracium triste W. Bridge Cooke 1938-8-18 11500 Siskiyou above Horse Camp; Mount Shasta Comment
  JEPS93890  Hippuris vulgaris Vernon H. Oswald and Lowell Ahart 1998-7-21 9349 Siskiyou ne of Weed and s of Macdoel (along Old State Highway on the w side of Bray); Bray, Old State Highway 1417 Comment
  HSC23604  Holodiscus discolor J. O. Sawyer 1970-7-15 2351 Siskiyou Above Bear Lake 1585 Comment
  HSC69424  Holodiscus discolor John Palmer 1980-7-23 560 Siskiyou Past Elbow Springs at end of USFS Rd. 15N19 1220 Comment
  HSC99346  Holodiscus discolor J. O. Sawyer 1973-7-17 2546 Siskiyou Along trail to Wild Lake 1768 Comment
  JEPS46111  Holodiscus discolor Duncan Dunning 1923-6-16 Siskiyou Happy Camp; northwestern Siskiyou County Comment
  UC1037416  Holodiscus discolor Douglas Barbe 1955-8-4 357 Siskiyou about 1/2 mi w of Big Flat (on the trail from Big Flat to Caribou Lake, Salmon Mountains); Salmon Mountains 1524 Comment
  UC922310  Holodiscus discolor Annie M. Alexander and Louise Kellogg 1949-7-31 5906 Siskiyou Marble Mountains, trail at entrance to Sky High Valley Sky High Valley; Marble Mountains, Sky High Valley 1767 Comment
  POM91535  Holodiscus discolor Geo. D. Butler 1910-7-6 1645 Siskiyou Shackleford Creek. 915 Comment
  CAS-BOT-BC152384  Holodiscus discolor var. discolor John Thomas Howell 1939-8-6 15106 Siskiyou Elk Mt., Marble Mts. Comment
  CAS-BOT-BC152358  Holodiscus discolor var. discolor E. R. Drew 1916-6-1 s.n. Siskiyou Squaw Creek Ranger Station, Shasta Creek Comment
  CAS-BOT-BC150143  Holodiscus microphyllus var. glabrescens E. B. Copeland 1903-10-11 3784 Siskiyou Mt. Eddy Comment
  UC54352  Horkelia daucifolia H. M. Hall and E. B. Babcock June, 1903 4085 Siskiyou near Edgewood; Sierra Nevada, Mt. Shasta 1158 Comment
  UC555626  Horkelia daucifolia H. L. Mason 1931-5-9 5870 Siskiyou 3 mi s Weed Comment
  CAS-BOT-BC143950  Horkelia daucifolia A. A. Heller 1922-6-22 13668 Siskiyou About 5 miles south of Yreka Comment
  UC165743  Horkelia fusca subsp. parviflora Geo. D. Butler 1910-9-11 1868 Siskiyou Weed Comment
  JEPS102922  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1983-7-29 7527 Siskiyou Scott Mountain Summit campground; Scott Mountain 1645 Comment
  RSA119333  Horkelia tridentata subsp. flavescens S. S. Tillett 1956-7-11 696 Siskiyou just N of campground, Scott Mtn divide, Siskiyou - Trinity County line, 8 mile SE of Callahan. 1631 Comment
  UC1299165  Horkelia tridentata subsp. flavescens Freed W. Hoffman 1948-7-9 2602 Siskiyou Waldo-Happy Camp Rd North Coast Ranges Comment
  UC54359  Horkelia tridentata subsp. tridentata H. M. Hall and E. B. Babcock June 1903 4052 Siskiyou near Sisson; Sierra Nevada 1036 Comment
  CDA24878  Hornungia procumbens G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-28 2591 Siskiyou Between Old Highway 99 and railroad 4 km south of Grenada. Comment
  CAS-BOT-BC201130  Hosackia crassifolia H. A. Thomas; J. H. Thomas 1954-7-27 4553 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. South side of South Fork of Salmon River in vicinity of Blind Horse Creek and area 1 mile to SE 975 Comment
  UCD106083  Hosackia crassifolia R. Tofsrud; J. M. Tucker 1948-8-2 1754 Siskiyou Open Yellow Pine woods, outskirts of McCloud. Comment
  UCD77837  Hosackia oblongifolia Robert E. Preston 2002-7-11 1897 Siskiyou Klamath National Forest, Trout Creek Meadow 1505 Comment
  HSC71399  Hosackia oblongifolia var. oblongifolia J. P. Smith, Steve Selva 1970-7-27 4514 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  LA203776  Hulsea nana Wm. Bridge Cooke; 1939-7-26 13769 Siskiyou Mt. Shasta, Along the Summit Trail below Lake Helen 2895 Comment
  UC195204  Hulsea nana Annie M. Alexander and Louise Kellogg 1911-8-14 316 Siskiyou Mt. Eddy Comment
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1
  UC705694  Hulsea nana Marion Ownbey and Fred G. Meyer 1940-7-4 2192 Siskiyou on ridge above the head of Brewer Creek; Mt. Shasta Comment
  HSC27489  Hydrophyllum occidentale J. P. Smith, J. O. Sawyer 1972-5-27 5352 Siskiyou Hwy. 3 near the Scott Mtn. Campground on divide between Scott and Trinity Rivers 1601 Comment
  JEPS82677  Hydrophyllum occidentale Wayne Roderick 1984-6-7 Siskiyou sw of Stewart Springs (Cabin Meadow); Cabin Meadow 1935 Comment
  CAS-BOT-BC312847  Hymenoxys lemmonii Alice Eastwood; John Thomas Howell 1936-6-13 2751 Siskiyou 6 miles n. of Weed Comment
  POM67032  Hymenoxys lemmonii Geo D. Butler 1910-7-4 1640 Siskiyou Shasta River Comment
  SD46777  Hymenoxys lemmonii E. K. Balls, L. W. Lenz 1956-6-18 21723 Siskiyou 5.7 miles southeast of Gazelle, U. S. Highway 99, Yreka to Dunsmiur. 885 Comment
  RSA12609  Hymenoxys lemmonii C. B. Wolf 1934-7-5 5976 Siskiyou Shasta Valley, 4.6 miles north of Gazelle. 823 Comment
  HSC99602  Hypericum anagalloides G. L. Clifton 1979-7-1 6169 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  SBBG21928  Hypericum anagalloides D. Myrick 1964-7-25 969 Siskiyou Panther Meadows, Mt Shasta 2346 Comment
  UC454936  Hypericum anagalloides I. J. Condit 1909-8-22 Siskiyou Sisson Comment
  CAS-BOT-BC401471  Hypericum scouleri Geo. D. Butler 1910-7-3 1627 Siskiyou Goosenest foothills 1219 Comment
  HSC68015  Hypericum scouleri J. P. Smith, Steve Selva 1970-7-18 4495 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  POM213070  Iliamna bakeri Carl B. Wolf 1934-7-6 6029 Siskiyou West side of Mt Shasta, along Snowline road, 3.3 miles from Mt. Shasta City 1524 Comment
  RSA792304  Ipomopsis aggregata Rebecca Wenk 2008-7-23 905 Siskiyou Southwest side of Mount Shasta, trail from Bunny Flat to Sierra Club Cabin above Avalanche Gulch. 2119 Comment
  UC195395  Ipomopsis aggregata A. A. Heller 1914-8-26 11720 Siskiyou Weed 1066 Comment
  UC52432  Ipomopsis aggregata W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Comment
  UCD35444  Ipomopsis aggregata Beecher Crampton 1956-8-22 3863 Siskiyou South slope of Mt. Shasta, Wagon Camp Road. 1828 Comment
  UCD118219  Ipomopsis aggregata A. H. M. 1957-7-23 57 N Siskiyou Deadfall Creek Shasta National Forest. 2011 Comment
  JEPS87631  Ipomopsis aggregata subsp. formosissima Vernon H. Oswald and Lowell Ahart 1994-8-10 6463 Siskiyou ca 5 mi (air) nw McCloud (FS Rd 31, 0.6 mi e of Ski Park Hwy (FS Rd 88)) 1584 Comment
  POM252974  Ipomopsis aggregata subsp. formosissima A. A. Heller 1938-7-12 15250 Siskiyou 5 miles north of Weed along highway 97 Comment
  RSA120872  Ipomopsis aggregata subsp. formosissima H. K. Wagnon 1957-8-11 s.n. Siskiyou East slope of Mt. Shasta, along Brewer Cr., 6 mi. W of Military Pass Rd. Comment
  RSA699547  Iris missouriensis Jenny Marr 1993-07 139 Siskiyou Butte Valley Wildlife Area, ~7 air miles NW of the town of MacDoel. 1350 Comment
  HSC100274  Isatis tinctoria J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13069 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2005 Comment
  UCR247348  Isatis tinctoria T. C. Fuller 1960-5-26 4344 Siskiyou Greenhorn Creek, 1.5 mi. west of Yreka 881 Comment
  CDA38006  Isatis tinctoria CDFA Staff s.n Siskiyou Fort Jones. 0 Comment
  JEPS13902  Isatis tinctoria Geo. D. Butler 1909-6-13 804 Siskiyou Scott River Comment
  RSA597971  Isoetes L. C. Wheeler 1963-8-31 8315 Siskiyou Siskiyou Mountains. Devil's Punch Bowl off Clear Creek. 1432 Comment
  JEPS100303  Isoetes bolanderi Dean W. Taylor 2001-8-28 17911 Siskiyou Mt. Shasta, Ash Creel Butte, Suprise Lake 2057 Comment
  RSA608670  Isoetes occidentalis L. C. Wheeler 1963-9-11 8385 Siskiyou Siskiyou Mountains: Dillon Creek, 3/4 mile NE of Sawtooth Mountain. 1616 Comment
  RSA576950  Isopyrum stipitatum Louis C. Wheeler 1935-3-10 3368 Siskiyou Mouth Beaver Creek off Klamath River, Siskiyou Mts. 549 Comment
  CAS-BOT-BC324837  Iva axillaris Geo. D. Butler 1910-9-12 1874 Siskiyou Near Lower Klamath Lake 1219 Comment
  HSC76638  Ivesia gordonii var. alpicola K. T. Stillman 1976-6-25 60 Siskiyou Marble Mtn. Wilderness Area 2073 Comment
  JEPS96982  Juncus acuminatus Dean W. Taylor 1999-7-18 17279 Siskiyou headwaters of South Fork Hungry Creek (ca. 6 air miles southwest from Hilt) 1432 Comment
  HSC77291  Juncus bolanderi L. P. Janeway 1982-6-30 31 Siskiyou E facing slope 300m N of West Branch Guard Station 671 Comment
  HSC30685  Juncus confusus Frederick W. Oettinger 1969-8-24 1526 Siskiyou Between English Lake main camp and 'Sundew Bog' W of camp 1799 Comment
  UC1265307  Juncus drummondii Frederick W. Oettinger 1968-9-9 797 Siskiyou Tom's Upper Pond, vicinity of English Peak, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area 2019 Comment
  HSC74840  Juncus effusus subsp. pacificus J. P. Smith, J. O. Sawyer 1978-7-3 10009 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  HSC775  Juncus ensifolius William J. Ferlatte 1967-8-17 950 Siskiyou Yellow Rose Mine 1982 Comment
  UC1748283  Juncus ensifolius Rhonda Posey 2000-8-17 Siskiyou about 3.5 mi NE of McCloud District Ranger Station, McCloud ( at Mud Creek Meadows, along Road 42N13 (Pilgrim Creek Road)) 1097 Comment
  UC637040  Juncus ensifolius Edward Lee 1934-8-13 1076 Siskiyou Happy Camp to Waldo (Oregon) road (watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  HSC30697  Juncus ensifolius Frederick W. Oettinger 1968-9-6 743 Siskiyou Bear Meadow, midway between English Peak and Tom Taylor Cabin at head of Snowslide Gulch 1997 Comment
  RSA238917  Juncus ensifolius Frederick W. Oettinger 1969-7-29 1104 Siskiyou At the northern shore line of Uncle s Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1845 Comment
  UCD141533  Juncus ensifolius A. H. Murphy 1960-8-9 60 E Siskiyou Klamath National Forest, Bear Lake. 1889 Comment
  HSC39871  Juncus exiguus J. O. Sawyer 1969-7-10 1213 Siskiyou N of Sugar Creek along FS Rd. 41N14 1372 Comment
  RSA238898  Juncus hemiendytus var. hemiendytus Frederick W. Oettinger 1969-8-24 1520 Siskiyou Inlet of upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  HSC96557  Juncus mertensianus Gordon Leppig, Tony LaBanca, L. Arguello 1997-6-27 484 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  HSC96563  Juncus mertensianus Gordon Leppig, J. Kalt 1996-7-9 355 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  RSA186332  Juncus mertensianus Gilbert Muth 1966-10-16 27 Siskiyou Marble Mountains 1793 Comment
  RSA233686  Juncus mexicanus Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38955 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  UC1108383  Juncus nevadensis Philip A. Munz 1960-8-22 24175 Siskiyou Panther Meadows Mt. Shasta 2316 Comment
  HSC92706  Juncus parryi Jennifer Whipple 1976-7-23 1517 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2317 Comment
  CHSC71510  Juncus tiehmii Vernon H. Oswald; Lowell Ahart 1998-7-21 9362 Siskiyou Northeast of Weed, east of Grass Lake, and west of Bray on Old State Highway 0.8 mi east of Tennant Rd. 1417 Comment
  CAS-BOT-BC80910  Juniperus W. B. C. 1940-6-4 15007 Siskiyou near the Bolam Road 1219 Comment
  UCD133821  Juniperus communis var. saxatilis Joseph M. DiTomaso 1976-9-8 689 Siskiyou Trinity Alps. South side of upper Caribou Lake. 2103 Comment
  CAS-BOT-BC81237  Juniperus occidentalis Elmer I. Applegate 1935-6-5 9293 Siskiyou Indian Well, Lava Beds National Monument Comment
  HSC101732  Juniperus occidentalis Michael Kauffmann, Richard Moore 2013-5-27 14 Siskiyou Northwest of Sugar Lake, south-facing cirque in granite 2003 Comment
  UC483416  Juniperus occidentalis M. G. Anderson 1902-3-4 Siskiyou between Yreka and Humbug Creek Comment
  SEINET5450470 Image available Juniperus occidentalis Ross C. Clark, Bob Harvey; Chris Harvey 23916 Siskiyou Interstate Hwy. 5- vicinity of Hawkinsville. Comment
  POM120219  Juniperus occidentalis var. occidentalis Geo D. Butler 1908-7-1 1105 Siskiyou Near Yreka. Comment
  HSC35446  Kalmia polifolia A. M. Montalvo, J. D. Ackerman 1975-7-18 585 Siskiyou Panther Meadow, Mt. Shasta 2287 Comment
  UC618898  Kalmia polifolia subsp. microphylla W. Bridge Cooke 1938-7-21 11296 Siskiyou Mount Shasta, Heather Meadow, Panther Creek Panther Creek; Mount Shasta, Heather Meadow, Panther Creek 2286 Comment
  NY790362  Keckiella lemmonii A. Eastwood 1912-7-23 1348 Siskiyou Cantara Comment
  POM68801  Kelloggia galioides Geo. D. Butler 1910-7-9 1707 Siskiyou Shackleford Creek. 1220 Comment
  RSA747342  Kelloggia galioides K. M. Meyer, A. Townesmith 2007-7-29 171 Siskiyou Shasta-Trinity National Forest. 0.3 mi. on 40N25 Rd., off Siskiyou County Rd., A10/Everitt Memorial Hwy. 1805 Comment
  JEPS94847  Kochia scoparia Vernon H. Oswald and Lowell Ahart 1998-9-16 9634 Siskiyou Highway 161 adjacent to a marsh at Lower Klamath National Wildlife Refuge (5.3 mi e of Highway 97) 1243 Comment
  CAS-BOT-BC499655  Kopsiopsis strobilacea J. H. Thomas 1954-5-14 4184 Siskiyou Salmon Mountains, Klamath National Forest (sw part of county). Near South Fork of Salmon River, 5--9 mi SE of Cecilville, along N side of river 1219 Comment
  CAS-BOT-BC499658  Kopsiopsis strobilacea John Thomas Howell 1939-8-6 15096 Siskiyou Marble Mts.: Elk Mt. Comment
  CAS-BOT-BC340372  Kyhosia bolanderi Alice Eastwood 1912-8-30 1988 Siskiyou Mount Eddy Comment
  HSC26752  Lactuca serriola J. P. Smith, J. O. Sawyer 1971-9-18 4836 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  RSA48214  Lathyrus pauciflorus subsp. brownii Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11809 Siskiyou At Mule Creek crossing of Scott Mountain Road. 1524 Comment
  HSC36669  Lathyrus polyphyllus Brent Whitely 1975-7-1 121 Siskiyou 671 Comment
  RSA768774  Lemna gibba Lowell Ahart, John Dittes 2010-7-30 16959 Siskiyou Edge of the Shasta River, about 50-100 yards from the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 air miles southwest of Big Springs Lake, 4.6 air miles northwest of Dwinnel Dam, 5.7 air miles southeast of Grenada. 717 Comment
  RSA45316  Lepidium campestre Dorothy Parker 1946-05 s.n. Siskiyou Plowman s Valley. 1128 Comment
  CAS-BOT-BC89183  Lepidium draba Geo. D. Butler 1909-5-10 725 Siskiyou Yreka. Comment
  CDA3794  Lepidium latifolium J. R. Grisham 1966-7-12 Siskiyou Mt. Shasta off-ramp of Interstate Freeway at Mt. Shasta City. 0 Comment
  NY76370  Lepidium montanum var. montanum A. Wood 1866-1 984 Siskiyou Shasta Plains, North of Mt. Shasta, 25 m from Yreka Comment
  CHSC91629  Lepidium perfoliatum G. F. Hrusa 2001-6-5 15841 Siskiyou Shasta Valley. Road pullout at northbound exit from I-5 at Louie Rd. 914 Comment
  HSC59843  Lepidium pinnatifidum Clark L. Miller 1979-4-28 1107 Siskiyou 12 mi. E of Hwy. 96 along road to Forks of Salmon Comment
  CAS-BOT-BC60146  Lepidium virginicum var. menziesii Carl B. Wolf 1927-8-26 1095 Siskiyou On the Klamath River, 14 miles above Happy Camp. Comment
  SEINET14160907  Leptosiphon bicolor G. D. Butler 1910-4-25 1243 Siskiyou Oro Fino Comment
  POM229951  Leptosiphon bolanderi L. C. Wheeler 1935-5-4 3455 Siskiyou Siskiyou Mts. 854 Comment
  RSA164303  Leptosiphon ciliatus Clare B. Hardham 1961-6-30 8013 Siskiyou Near White Mt. 1829 Comment
  UC1540138  Lesquerella occidentalis subsp. occidentalis Dean Wm. Taylor and Rexford E. Palmer 1987-8-8 9262 Siskiyou Lyons Peak Medicine Lake volcanic highland region, Lyons Peak (extreme ne portion of co.) 2407 Comment
  UC1287439  Lessingia nemaclada Willard Spence 1960-9-7 619 Siskiyou Route 99 at s city limits Dunsmuir Comment
  UC195376  Lessingia nemaclada A. A. Heller 1916-7-23 12494 Siskiyou at Dunsmuir Dunsmuir 640 Comment
  UC455815  Lessingia nemaclada I. J. Condit 1911-7-13 Siskiyou Dunsmuir Sacramento River Comment
  OBI55491  Lessingia nemaclada David J. Keil, Kathleen Keil 1992-7-21 23555 Siskiyou Klamath NF SE of Callahan. Forest Rd 40N08, 5 mi W of Scott Mtn rd (hwy 3) Comment
  RSA158035  Leucophysalis nana Jack Major 1961-7-14 637 Siskiyou Along old road to Panther Creek, Mount Shasta. 1800 Comment
  HSC4874  Leucothoe davisiae J. O. Sawyer 1968-6-18 209 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  RSA464463  Lewisia cotyledon L. C. Wheeler 1934-8-2 3034 Siskiyou Head of Rocky Gulch of Jaynes Canyon. Mt. Diablo Mer. 2134 Comment
  CAS-BOT-BC444040  Lewisia cotyledon var. cotyledon Harley P. Chandler 1901-6-1 1594 Siskiyou North Coast Ranges. Near Marble Mountain 2286 Comment
  CHSC95122  Lewisia cotyledon var. cotyledon L. P. Janeway 2006-7-3 8771 Siskiyou Klamath Ranges. Salmon Mountains; 100 m west of the Taylor Lake Trailhead Road 0.8 km south of the main road. North-facing edge at top of narrow rocky spur ridge. 1820 Comment
  UCD13173  Lewisia cotyledon var. cotyledon Clyde Byfield 1973-7-1 S 164 Siskiyou Siskiyou CO. Klamath National Forest, on U.S.F.S. trail 11 W 23, 5 miles west of Hayes Cabin. Elevation 5700 feet. 1737 Comment
  CAS-BOT-BC444078  Lewisia leeana Gilbert Muth 1966-7-14 382 Siskiyou Upper meadows of Marble Valley, Marble Gap Trail, Marble Mts. 1828 Comment
  SEINET10572649  Lewisia leeana Mary Susan Taylor 1980-7-8 Taylor 3093 Siskiyou T39N R5W south center sec 19, Dunsmuir quad; Shasta-Trinity Natl Forest; S end of Little Castle Lake, in steep granitic cliffs. 1768 Comment
  CAS-BOT-BC444306  Lewisia pygmaea Wm. Bridge Cooke 1939-7-13 13668 Siskiyou Mount Shasta. In The South Gate. Comment
  RSA47807  Lewisia rediviva Roxana S. Ferris, Laura Lorraine 1948-6-12 11715 Siskiyou Schoolhouse Hill, Plowman s Valley [Noyes Valley], East Fork of Scott River Comment
  CAS-BOT-BC444577  Lewisia triphylla C. L. Hitchcock; J. S. Martin 1939-7-9 5337 Siskiyou Paradise Lake, near King's Castle 1767 Comment
  HSC24052  Lewisia triphylla J. O. Sawyer 1971-7-2 2403 Siskiyou 1463 Comment
  JEPS43207  Lewisia triphylla W. L. Jepson 1907-7-6 2853 a Siskiyou ridge above Cudahay Valley; Marble Mt. Reg. Comment
  RSA591654  Leymus condensatus L. C. Wheeler 1934-9-22 3292 Siskiyou Walker, Klamath River; Siskiyou Mts. 518 Comment
  RSA602819  Leymus triticoides L. C. Wheeler 1935-6-2 3543 Siskiyou Shasta River, Siskiyou Mts. 732 Comment
  CDA41063  Ligusticum apiifolium G. F. Hrusa 1998-7-5 14689 Siskiyou Siskiyou Mountains; Bear Creek Rd. +- 1/2 mi. N of Hwy 96 and 10 mi. SW of Happy Camp. Sheet 2 of 2 Comment
  HSC69013  Ligusticum californicum Maralyn A. Renner 1980-7-24 2028 Siskiyou Lily Pad Lake 1768 Comment
  UCD127545  Ligusticum californicum A. A. Heller 1915-8-26 12237 Siskiyou Mount Eddy. 1828 Comment
  HSC67682  Lilium kelleyanum John S. Palmer 1980-7-24 623 Siskiyou Elk Hole 1503 Comment
  JEPS61997  Lilium pardalinum Geo. D. Butler 1909-7-20 886 Siskiyou Highland Mine Comment
  RSA126270  Lilium pardalinum I. L. Wiggins 1955-7-21 13425 Siskiyou Near Mt. View Ranch 7 miles above Cecilville on S Fork of Salmon River 976 Comment
  SEINET8480721  Lilium pardalinum W. Roderick 1967-7-28 s.n. Siskiyou Center of town of Mt. Shasta, between the old highway and the railroad. Comment
  HSC77934  Lilium pardalinum subsp. wigginsii D. K. Imper 1982-7-22 1501 Siskiyou Near Flint Valley 1402 Comment
  UC1035030  Lilium pardalinum subsp. wigginsii L. Beane and A. M. Vollmer 1954-7-16 1266 Siskiyou w of Highway 99 (Siskiyou Mountains, near Oregon border); Siskiyou Mountains; Siskiyou Mts., Siskiyou Co. Comment
  RSA12671  Lilium washingtonianum Carl B. Wolf 1934-7-6 6024 Siskiyou Southwest slope of Mt. Shasta along trail to Horse Camp 1524 Comment
  CHSC4536  Lilium washingtonianum subsp. washingtonianum J. E. Bowlin 1967-7-18 62 Siskiyou Ca. 4.2 mi w of Mount Shasta Ski Bowl, and 1-10 yds. Off the road. 1950 Comment
  CAS-BOT-BC133089  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 9 Siskiyou 3.5 miles northeast of the town of Mount Shasta 1402 Comment
  CAS-BOT-BC133103  Lilium washingtonianum subsp. washingtonianum A. A. Heller 1920-7-10 13440 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  UC880302  Linanthus unknown 1941-6-6 16012 Siskiyou e base Mt. Eddy Comment
  CDA40059  Linanthus bolanderi F. D. Horn 1978-4-9 s.n. Siskiyou Horn Ranch, Etna. 0 Comment
  JEPS58444  Linanthus harknessii Geo. D. Butler 1910-7-7 1657 Siskiyou Shackleford Creek 1219 Comment
  CDA6300  Linaria genistifolia subsp. dalmatica William J. Ferlatte 1971-6-28 Siskiyou Side of alley behind 22 Minnesota Street, McCloud. 0 Comment
  POM229948  Lindernia dubia var. dubia Louis C. Wheeler 1934-9-15 3261 Siskiyou Walker, Klamath River, Siskiyou Mts. (Mt. Diablo Mer.) 518 Comment
  CAS-BOT-BC416401  Linnaea borealis subsp. longiflora Ira L. Wiggins 1955-7-23 13467 Siskiyou Ridge west of China Creek, south side of south fork of Salmon River 1097 Comment
  HSC22270  Linnaea borealis subsp. longiflora J. O. Sawyer 1969-7-23 1168 Siskiyou Near Horse Range Creek. 1341 Comment
  HSC69325  Linnaea borealis subsp. longiflora John Palmer 1980-8-12 733 Siskiyou Road to Bearground Spring from Beaver Creek Rd. 1341 Comment
  SEINET4039768  Linnaea borealis var. longiflora O. M. Clark 1947-1 14400 Siskiyou Myrtle Creek, Siskiyou Mountains. Comment
  CHSC63339  Lithocarpus densiflorus var. echinoides Vernon Oswald; Lowell Ahart 1994-7-11 6408 Siskiyou Forest Rd. 26 (to Mt. Shasta) 1.9 mi SW of the dam at Lake Siskiyou. 1036 Comment
  RSA468256  Lithophragma brevilobum Christopher Davidson 1975-6-5 2698 Siskiyou 0.7 mile on dirt road departing NE directly from Scott Mtn Summit. 1738 Comment
  RSA238326  Lithophragma campanulatum Frederick W. Oettinger 1969-7-9 942 Siskiyou NW of Upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC91190  Lithophragma glabrum Jennifer Whipple 1978-6-5 2352 Siskiyou Pass between Eddy Creek and Deadfall Creek drainages 2073 Comment
  CAS-BOT-BC435632  Lithophragma heterophyllum Gilbert Muth 1966-7-14 385 Siskiyou Slopes above Marble Vally, Marble Gap Trail, Marble Mts. 1813 Comment
  RSA298362  Lithophragma heterophyllum James Payne Smith 1973-5-5 6417 Siskiyou Along Cook and Green Pass road. Comment
  CAS-BOT-BC325942  Lithospermum californicum Alice Eastwood 1923-5-23 11915 Siskiyou Cantara. S.P.R.R. [Southern Pacific Railroad] Comment
  HSC22242  Lolium perenne J. O. Sawyer 1969-8-1 1617 Siskiyou On trail to Eaton Lakes. 1799 Comment
  SEINET3143862  Lomatium californicum G. D. Butler 1910-5-18 1359 Siskiyou near Yreka Comment
  UC165961  Lomatium californicum Geo. D. Butler 1909-6-6 799 Siskiyou near Yreka Comment
  JEPS16239  Lomatium dissectum var. dissectum Geo. D. Butler 1909-5-8 746 Siskiyou Yreka hills Comment
  HSC91131  Lomatium engelmannii Jennifer Whipple 1976-7-2 1267 Siskiyou Dobkins Lake drainage on E facing slopes above Dobkins Lake 2256 Comment
  SDSU2236  Lomatium marginatum D. F. Howe 1977-7-5 4995 Siskiyou 15 miles southeast of Granada. 1219 Comment
  UC165428  Lomatium vaginatum Geo. D. Butler Apr 18 1909-Apr 30 1909 624 Siskiyou near Yreka Comment
  HSC42234  Lonicera conjugialis J. D. Mastrogiuseppe 1974-9-2 161 Siskiyou Above Kidd Creek. 1951 Comment
  JEPS116590  Lonicera conjugialis Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -025 Siskiyou The Eddys, west of Mt. Shasta. West side of Toad Lake headwaters of Middle Fork of upper Sacramento River. South China Mountain 2118 Comment
  UC28531  Lonicera interrupta Edward L. Greene 1870-7-7 920 Siskiyou Comment
  CAS-BOT-BC243921  Lonicera involucrata var. involucrata H. E. Brown 1897-7-15 473 Siskiyou South side of Mt. Shasta 3048 Comment
  JEPS16301  Lonicera tatarica W. T. Mooney 1903-5-21 Siskiyou Yreka Comment
  SEINET11071691 Image available Lotus crassifolius A. A. Heller 1905-6-5 7972 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  RSA281673  Lotus oblongifolius S. O. Mattoon 1978-7-23 119 Siskiyou Wright Lakes Trail, 11 air mi. W of Fort Jones, Marble Mts. 1982 Comment
  JEPS91408  Lotus oblongifolius var. oblongifolius Dean W. Taylor 1972-7-3 1582 Siskiyou Cook and Green Pass 1371 Comment
  UC375399  Lotus purshianus var. purshianus Geo. D. Butler 1910-6-27 1610 Siskiyou Yreka Comment
  POM27064  Lotus unifoliolatus Geo. D. Butler 1910-6-27 1610 Siskiyou Yreka Comment
  CAS-BOT-BC140212  Luetkea pectinata Jack Major; M. Fleschner; R. Pemble 1966-9-5 s.n. Siskiyou Along trail from Marble Mountain to Sky High Lake, east of Marble Mountain, Marble Mountains 1975 Comment
  CAS-BOT-BC140250  Luetkea pectinata Maxine Wilkes 1940-8-1 s.n. Siskiyou Cliff Lake, Marble Mts. Comment
  UC1409366  Luetkea pectinata Frederick W. Oettinger 1968-8-2 356 Siskiyou se corner Diamond Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2072 Comment
  UCD113635  Luetkea pectinata Jack Major; M. Fleschner and R. Pemble 1966-9-5 s.n. Siskiyou Along trail from Marble Mountain to Sky High Lake, east of Marble Mountain, Marble Mountains. 1975 Comment
  UCR110581  Luetkea pectinata L. C. Wheeler 1963-8-25 8274 Siskiyou Preston Peak: Summit ridge 2134 Comment
  RSA624997  Luina hypoleuca L. C. Wheeler 1963-8-27 8277 Siskiyou Siskiyou Mountains: West Fork Clear Creek. 670 Comment
  JEPS86122  Lupinus Wayne Roderick 1966-6-26 Siskiyou Copper Butte Trail Cook and Green Pass n Seiad Valley (exposed ridge to Copper Butte); Cook and Green Pass, Copper Butte Tail Comment
  SEINET5766232 Image available Lupinus E. B. Copeland 1903-1 3887 Siskiyou Sisson [Mount Shasta] Comment
  UC1017669  Lupinus Marion Ownbey, Ruth P. Ownbey 1938-7-20 1763 Siskiyou near Dry Lake Lookout (summit of the Siskiyou Mountains); , near Dry Lake Lookout Comment
  JEPS116628  Lupinus albicaulis J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -12 Siskiyou North side of Mt. Shasta south of Hwy 97; Hotlum Fire area burned in Feb 2006 1100 Comment
  UCR63952  Lupinus albicaulis Steve Morgan 1987-7-28 s.n. Siskiyou Sierra Nevada Mtns, McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, south of Mt. Shasta 1768 Comment
  LA205029  Lupinus albicaulis A. A. Heller; 1927-8-1 14436 Siskiyou Sacramento River, a short distance above Shasta Springs Comment
  JEPS64892  Lupinus albicaulis var. shastensis Willis L. Jepson August 1894 8 t Siskiyou near Sisson; Mt. Shasta, Upton, near Sisson Comment
  HSC71540  Lupinus albifrons J. P. Smith, Steve Selva 1970-6-15 3952 Siskiyou Road between Forks of Salmon and Cecilville. 579 Comment
  POM26759  Lupinus albifrons var. eminens Geo. D. Butler 1910-5-16 1353 Siskiyou Yreka Comment
  HSC77064  Lupinus andersonii K. T. Stillman 1976-8-7 197 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  HSC23657  Lupinus andersonii J. O. Sawyer 1969-7-16 1144 Siskiyou 2073 Comment
  HSC34658  Lupinus andersonii Thomas W. Nelson, J. O. Sawyer 1974-10-29 1742 Siskiyou Beside Rd. to the Little Duck Lake trail head. Comment
  SFV18059  Lupinus angustiflorus J. A. Matos, D. C. Rudolph 1999-8-7 s. n. Siskiyou 2 miles south of Lava Beds National Monument on Lava Beds National Monument Road. 1738 Comment
  SD98878  Lupinus bicolor Darley F. Howe 1977-7-2 4985 Siskiyou Scott River Road, 7 miles NW of Fort Jones 671 Comment
  HSC22260  Lupinus breweri J. O. Sawyer 1969-7-11 1341 Siskiyou Se facing slope above S Sugar Creek 1753 Comment
  CAS-BOT-BC196694  Lupinus breweri var. breweri Marion Ownbey; Ruth P. Ownbey 1938-7-20 1763 Siskiyou Near Dry Lake Lookout, summit of the Siskiyou Mountains Comment
  CAS-BOT-BC215181  Lupinus croceus Arthur Menzies 1962-7-21 s.n. Siskiyou Mount Eddy 2529 Comment
  CAS-BOT-BC215187  Lupinus croceus H. E. Brown No date on label 395 Siskiyou N side of Mount Shasta Comment
  POM24889  Lupinus klamathensis Geo. D. Butler 1909-5-8 709 Siskiyou Shasta Valley Comment
  SEINET10485424  Lupinus klamathensis Jeffrey Huber 1971-6-9 Huber 258 Siskiyou 3 mi. N of weed, on us hwy 97; s facing 20 degree slope; roadside; in pinus Ponderosa, p. Jeffreyi, and artemisia tridentata and purshia. 1128 Comment
  RSA256589  Lupinus lapidicola J. P. Smith 1974-5-27 7623 Siskiyou Along Forest Sevice Road 47N03. 1280 Comment
  HSC75194  Lupinus latifolius subsp. viridifolius K. T. Stillman 1976-7-7 165 Siskiyou Marble Mountain Wilderness Area 1982 Comment
  HSC40978  Lupinus latifolius subsp. viridifolius J. O. Sawyer 1970-7-3 2311 Siskiyou W of Camp 3. Plot 320. Comment
  HSC63294  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-7-30 1068 Siskiyou 1900 Comment
  RSA32903  Lupinus latifolius subsp. viridifolius A. A. Heller 1928-6-9 14601 Siskiyou Shasta Retreat Comment
  SEINET10489289  Lupinus latifolius subsp. viridifolius Joseph W. Congdon 1900-8-9 Congdon s.n. Siskiyou Near sisson. Comment
  CAS-BOT-BC7547  Lupinus latifolius var. viridifolius Amos Arthur Heller 1905-6-1 7928 Siskiyou Between Dunsmuir and Upper Soda Spring Comment
  SEINET194957  Lupinus laxiflorus A. A. Heller 1938-7-12 15260 Siskiyou Border of a meadow east of Deer Mountain on the old U.S. Highway 97, toward Bray. 1402 Comment
  CAS-BOT-BC8340  Lupinus lelandsmithii L. E. Smith 1913-5-4 253 Siskiyou Hornbrook Comment
  UCD108232  Lupinus lepidus A. A. Heller 1920-7-9 13421 Siskiyou Mt. Eddy. 2438 Comment
  UC33405  Lupinus lepidus var. lobbii W. C. Blasdale 1894-7-31 Siskiyou Mt. Shasta , near Black Butte (near Black Butte) Comment
  UC796433  Lupinus leucophyllus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11824 Siskiyou Lower Plowman's [Noyes] Valley e Fork of Scott River (e Fork of Scott River); , Lower Plowman's [Noyes] Valley 1127 Comment
  RSA0064514  Lupinus leucophyllus Daisie Huang 2006-8-4 06080403 Siskiyou Klamath River Highway, west of I-5. 491 Comment
  UC156997  Lupinus luteolus Geo. D. Butler 1909-6-26 910 Siskiyou near Yreka; near Yreka Comment
  HSC45900  Lupinus luteolus Laura Witherspoon 1978-8-24 107 Siskiyou Klamath National Forest 1646 Comment
  JEPS83248  Lupinus microcarpus var. microcarpus W. L. Jepson 1940-6-23 19982 Siskiyou ca 2 mi e Montague; e <of> Montague 822 Comment
  JEPS65409  Lupinus onustus W. L. Jepson 1902-7-22 2094 a Siskiyou Salmon Summit Trail Comment
  UC144513 Image available Lupinus onustus A. A. Heller 1905-6-15 8037 Siskiyou near Sisson; ; near Sisson, Siskiyou Co. Comment
  UC642537  Lupinus polyphyllus var. burkei W. Bridge Cooke 1939-6-23 13514 Siskiyou upper end Bear Springs Meadows (Mount Shasta); Mount Shasta Comment
  POM11085  Lupinus sellulus subsp. sellulus Geo. D. Butler 1910-9-11 1867 Siskiyou [Unspecified] Comment
  SEINET10490222  Lupinus sellulus var. artulus James P. Smith, John O. Sawyer 1972-6-30 Smith, Jr. 5639 Siskiyou Jct. Of french creek and sugar creek rd, 1/2 mi w of parrot mill rd. Mixed Conifer forest. 1250 Comment
  SEINET10490260  Lupinus subvexus var. transmontanus Katherine L. Morris 1973-6-2 Morris 339 Siskiyou Decomposed volcanic soil on hornbrook to montague road, about 1 mi se of Hornbrook. Comment
  HSC67149  Luzula comosa J. P. Smith 1973-5-5 6392 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  UC642583  Luzula comosa var. laxa W. Bridge Cooke 1939-7-7 13602 Siskiyou Mount Shasta. Between Bear Springs and Wagon Camp 1676 Comment
  RSA14322  Luzula comosa var. laxa Elmer I. Applegate 1895-5-28 753 a Siskiyou Sisson, Strawberry Valley. Comment
  CHSC4312  Luzula parviflora D. Parker 1965-7-24 898 Siskiyou Near Horse Range Creek, Salmon Mt. 1828 Comment
  UCR142987  Luzula parviflora L. C. Wheeler 1934-8-17 3184 Siskiyou Siskiyou Mtns., north side of White Mtn 1829 Comment
  HSC98169  Luzula parviflora J. O. Sawyer 1969-8-11 2003 Siskiyou Along S French Creek 1692 Comment
  CDA5122  Lythrum salicaria J. R. Keck Jr., J. Massey 1985-8-7 PDR# 330138 Siskiyou Tulelake Wildlife Refuge. 0 Comment
  SEINET2121893  Machaeranthera canescens M. L. Carson 1968-12-8 1293 Siskiyou US Highway 97, 1.4 mi N of Macdoel and 8.5 mi S of Dorris, between the highway and the railroad 1250 Comment
  CAS-BOT-BC342666  Madia citriodora John Thomas Howell 1934-7-4 12410 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley Comment
  JEPS40212  Madia citriodora Geo. D. Butler 1908-5-14 698 Siskiyou Klamath River Comment
  JEPS7384  Madia elegans Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sissons Region of the Upper Sacramento Comment
  UC133253  Madia elegans Dr. E. B. Copeland 1903-8-13 3820 Siskiyou Sisson 1066 Comment
  CAS-BOT-BC344006  Madia elegans Louis C. Wheeler 1934-6-28 2809 Siskiyou Klamath National Forest. Beaver Cr. 914 Comment
  JEPS15376  Madia elegans Douglas Barbe 1955-7-7 141 Siskiyou e side Forest Camp; Klamath Mountains, Etna 883 Comment
  UCD134273  Madia glomerata A. H. Murphy 1956-8-16 56 Z Siskiyou Tangle Blue Lake, Klamath National Forest. 1767 Comment
  CAS-BOT-BC343424  Madia gracilis unspecified 1902-9-11 s.n. Siskiyou Sisson Comment
  CAS-BOT-BC343439  Madia gracilis Wm. Bridge Cooke 1938-8-19 11518 Siskiyou Lower Bear Spring, Mt. Shasta 1524 Comment
  HSC43829  Madia gracilis Maralyn O'Meara 1974-5-27 480 Siskiyou Along FS Rd. 47N03 1280 Comment
  UC165394  Madia gracilis Geo. D. Butler 1909-6-12 952 Siskiyou near road<?> Greenhorn Mountain Comment
  RSA237902  Maianthemum racemosum subsp. amplexicaule Frederick W. Oettinger 1968-8-7 438 Siskiyou East side of Hancock Lake. The Salmon Mountains, the high lake basins in the vicinity of English Peak, Marble Mountains Wilderness Area 1936 Comment
  HSC77489  Maianthemum stellatum L. P. Janeway 1983-7-17 423 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  RSA715947  Marrubium vulgare L. Ahart, John Dittes 2005-6-10 12106 Siskiyou East side of the Shasta River, 20 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 cutoff, about 6 miles (air) east-southeast of Grenada. 777 Comment
  HSC6017  Matricaria discoidea R. C. Wunner 1965-6-29 309 Siskiyou California Lava Beds National Monument; Indian Wells Campground, lower loop 1433 Comment
  UCD134462  Matricaria discoidea A. A. Heller 1916-7-20 12461 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy in openings in the forest. 1188 Comment
  JEPS69296  Melica aristata Geo. D. Butler 811 Siskiyou Highland Mine 1828 Comment
  LA12116  Melica aristata J. R. Swallen; 1939-7-28 13783 Siskiyou Mount Shasta, vicinity of MacBride Springs 1523 Comment
  LA12117  Melica aristata H. S. Yates; 1936-6-21 5833 Siskiyou 1 mi SW of Signal Butte 1341 Comment
  CAS-BOT-BC271105  Melica bulbosa L. R. Short 1933-6-6 75326 Siskiyou Lime Gulch 1219 Comment
  CAS-BOT-BC271214  Melica bulbosa K. T. Stillman 1976-7-15 248 Siskiyou Marble Mountain Wilderness Area Comment
  SEINET4671564  Melica bulbosa G. Butler 1910-4-30 1251 Siskiyou Yreka Comment
  POM114782  Melica fugax Geo D. Butler 1909-5-26 824 Siskiyou Hill near Yreka. Comment
  UCD87354  Melica geyeri R. Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road between Happy Camp and O'Brien, Oregon. Comment
  HSC69283  Melica subulata Maralyn A. Renner 1980-7-24 1961 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  JEPS93967  Mentha canadensis Vernon H. Oswald and Lowell Ahart 1998-9-16 9635 Siskiyou 5.3 mi e of Highway 97 (Highway 161 adjacent to marsh at the Lower Klamath National Wildlife Refuge); Lower Klamath National Wildlife Refuge 1243 Comment
  JEPS48636  Mentzelia dispersa Geo. D. Butler 1909-6-12 906 Siskiyou McAdams Creek Comment
  SEINET8712600  Mentzelia laevicaulis G. D. Butler 1910-7-17 1789 Siskiyou Near Yreka. Comment
  UCSB25034  Mertensia oblongifolia Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road; south of O'Brien; 22.6 miles north of Happy Camp 1219 Comment
  UC1408868 Image available Micranthes marshallii Frederick W. Oettinger 1969-7-16 651 Siskiyou Base of precipice south of of Abbott's Lake; High Lake Basins in vicinity of English Peak; Marble Mountain Wilderness Area Comment
  UC707027  Microseris laciniata subsp. siskiyouensis G. L. Stebbins Jr. with A. A. Beetle 1942-6-1 3273 Siskiyou along river 2 mi n Swillup Creek Ranger Station; Klamath River 270 Comment
  CAS-BOT-BC349375  Microseris nutans Wm. Bridge Cooke 1938-7-1 11140 Siskiyou Mount Shasta. Below Wagon Camp Comment
  CAS-BOT-BC349378  Microseris nutans Ira L. Wiggins 1955-7-27 13520 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC69704  Microseris nutans Maralyn A. Renner 1980-6-26 1262 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  POM35783  Microseris nutans Geo D. Butler 1910-6-4 1498 Siskiyou Shackleford Creek. Comment
  HSC77048  Microsteris gracilis K. T. Stillman 1976-6-25 33 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  RSA264957  Mimulus breweri Gilbert Muth 1975-7-29 s.n. Siskiyou Near Kangaroo Mtn. Near Seiad Valley. 1756 Comment
  UC144522  Mimulus guttatus Copeland 1903-8-13 3808 Siskiyou Sisson Comment
  UC618713  Mimulus guttatus W. Bridge Cooke 1938-8-5 11444 Siskiyou MacBride Springs Mount Shasta Comment
  RSA237547  Mimulus guttatus Frederick W. Oettinger 1969-9-4 1671 Siskiyou At spring at Tom Taylor Cabin. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  CDA41799  Mimulus guttatus subsp. micranthus F. D. Horn 1977-5-17 s.n. Siskiyou Highway 263, Shasta River Canyon, northeast of Yreka. 0 Comment
  JEPS8210  Mimulus layneae W. L. Jepson 1894-8-9 36 m Siskiyou Shasta Springs Comment
  JEPS8234  Mimulus layneae W. L. Jepson 1894-8-9 34 m Siskiyou above Shasta Springs (Horseshoe Bend); Shasta Region Comment
  POM213853  Mimulus layneae G. C. Kimber 1934-6-9 33 Siskiyou Ney Creek 1/8 mi from junction with Sacramento River. 732 Comment
  HSC44938  Mimulus moschatus J. O. Sawyer 1978-6-19 3244 Siskiyou Marble Mtn. Wilderness Area, trail between Timothy Gulch and Harry Hall Gulch 1433 Comment
  JEPS22410  Mimulus nanus var. jepsonii Francia Chisaki, Gene B. Newcomb 1958-6-21 1149 Siskiyou n McCloud (on road to Ice Cave); Squaw Valley Creek 1158 Comment
  HSC68583  Mimulus nanus var. nanus Maralyn A. Renner 1980-6-24 1064 Siskiyou 1/2 mi. E of Cook and Green Pass 1555 Comment
  LA94996  Mimulus nanus var. nanus J. M. Tucker; 1963-7-7 3724 Siskiyou Marble Mountain Wilderness Area, in vicinity of Paradise Lake, at base of Kings Castle on E side 1981 Comment
  RSA422244  Mimulus nanus var. nanus Louis C. Wheeler 1934-8-6 3052 Siskiyou Rock Gulch off Jaynes Canyon. Siskiyou Mts. Mt. Diablo Mer. 1829 Comment
  RSA59506  Mimulus nanus var. nanus E. K. Balls 1950-5-16 14708 Siskiyou Caldwell Butte, east slope. Lava beds Nat'l Monument. 1646 Comment
  RSA233700  Mimulus primuloides Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38969 Siskiyou S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  RSA233712  Mimulus primuloides Frederick W. Oettinger 1969-7-25 s.n. Siskiyou Scott Mts., Shasta-Trinity National Forest: ca. 15 air mi. SW of Weed near Kangaroo Lake Campground. Comment
  JEPS3161  Mimulus primuloides subsp. primuloides George D. Butler 1908-8-3 52 Siskiyou near Log Lake 1371 Comment
  HSC26935  Mimulus tilingii J. P. Smith, J. O. Sawyer 1971-9-18 4829 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  HSC44715  Minuartia douglasii J. O. Sawyer, Ed Cope 1977-6-18 2514 Siskiyou Along Clear Creek Trail between Ten Mile Creek and Bear Pen Creek 610 Comment
  HSC46180  Minuartia douglasii Jennifer Whipple 1977-4-30 1891 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  POM101321  Minuartia douglasii Geo. D. Butler 1909-5-2 660 Siskiyou Yreka. Comment
  POM101544  Minuartia pusilla Geo. D. Butler 1232 Siskiyou Quartz Valley. Comment
  CHSC88777  Mirabilis greenei Jenny Marr 1993-7-1 198 Siskiyou Steamboat Mtn. Shasta Valley Wildlife Area, +/- 20 air miles S of Oregon border and 8 miles E of Yreka. Meadow. 701 Comment
  UC1459328  Mirabilis greenei George E. Pilz 1973-5-25 993 Siskiyou 4 mi n Yreka (above Shasta River) 700 Comment
  HSC41798  Mitella diversifolia Brent Whitely 1975-7-1 124 Siskiyou Klamath National Forest at Ti Creek 671 Comment
  UC1198871  Mitella diversifolia Joseph P. Tracy 1935-8-2 14434 Siskiyou Young's Peak Salmon-New River divide (ne side) 1524 Comment
  HSC61890  Mitella pentandra Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  RSA48003  Mitella trifida Roxana S. Ferris 1948-6-12 11783 Siskiyou Small tributary of Etna Creek below Mill Creek Bridge. 1067 Comment
  JEPS46134  Moehringia macrophylla Duncan Dunning 1922-6-5 Siskiyou nw Fort Jones (Moffett Creek); Moffett Creek Comment
  HSC14277  Monardella glauca R. C. Wunner 1965-6-29 299 Siskiyou Lava Beds National Monument, below upper Caldwell Ice Cave 1433 Comment
  HSC22415  Monardella glauca J. O. Sawyer 1969-8-2 1677 Siskiyou SE facing slope above Little Duck Lake 1951 Comment
  CHSC4557  Monardella odoratissima J. E. Bowlin 1967-7-18 73 Siskiyou Off roadside, ca. 3.4 mi w of Mount Shasta Ski Bowl. 2164 Comment
  CHSC69081  Monardella odoratissima Vernon Oswald; Lowell Ahart 1997-7-28 8781 Siskiyou Forest Route 56 (42N56) 3.7 mi east of Forest Route 49, edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave. 1755 Comment
  UC164003  Monardella odoratissima subsp. glauca Geo. D. Butler 1908-7-12 168 Siskiyou Humbug Mountain Comment
  UC2035803  Monardella odoratissima subsp. glauca W. Bridge Cooke 1938-9-8 11624 Siskiyou Lava flats above Panther Creek Meadow; Mount Shasta Comment
  UC25494  Monardella odoratissima subsp. glauca J. W. Morse Jul 1886 Siskiyou Shasta Comment
  CAS-BOT-BC210240  Monardella odoratissima subsp. pallida Dana York 2011-8-12 3041 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  CAS-BOT-BC222154  Monardella odoratissima subsp. pallida A. A. Heller 1905-6-13 8018 Siskiyou Shasta Springs Comment
  HSC67785  Monardella odoratissima subsp. pallida J. O. Sawyer, J. Cole 1980-7-21 3831 Siskiyou N of FS Rd. 44N01 near intersection with road to Lava Camp. 1677 Comment
  SEINET3996791 Image available Monardella odoratissima subsp. pallida C. L. Hitchcock, J. S. Martin 1939-7-6 5213 Siskiyou On Takilma-Happy Camp road 1676 Comment
  RSA68919  Monardella odoratissima subsp. pallida A. E. Culbertson 1943-8-1 38 Siskiyou Castle Lake. 14 miles s.w. of Mt. Shasta on n side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles at its headwaters to the west. 1657 Comment
  SEINET10582084  Monardella odoratissima subsp. pallida A. Graff 1993-7-24 Graff 349 Siskiyou Mt. Shasta National Forest, Mt. Shasta. Memorial Hwy. from the 2nd road to Sand Flats going down the Mt., on both sides of the road. Locally frequent at the edge of mixed conifer forest of Abies magnifica, A. concolor, Pinus ponderosa, Pseudotsuga menziesii, Calocedrus decurrens, with Ceanothus sp., Arctostaphylos uva-ursi and A. sp. Comment
  CAS-BOT-BC453478  Monotropa hypopitys Volney Rattan 1879-6-1 s.n. Siskiyou Klamath Comment
  CAS-BOT-BC445206  Montia parvifolia H. A. Thomas; J. H. Thomas 1954-7-27 4549 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. South side of South Fork of Salmon River in vicinity of Blind Horse Creek and area 1 mile to SE. Right along Salmon River 975 Comment
  UCD86406  Muhlenbergia andina Beecher Crampton 1956-8-21 3837 Siskiyou Siskiyou County, southeast base of White Ridge, canyon of south fork of Sacramento River. 1371 Comment
  HSC65681  Muhlenbergia filiformis Donald W. Miles 1979-7-25 19 Siskiyou 3/4 way up Shirttail Canyon near Black Fox Mtn. on logging spur 20 miles NE of McCloud. Comment
  UC1266286  Muhlenbergia jonesii John R. Reeder and Charlotte G. Reeder 1972-7-24 5807 Siskiyou 1.5 mi sse Bartle 1219 Comment
  CAS-BOT-BC275339  Muhlenbergia jonesii W. B. C. 1940-7-5 15247 Siskiyou Mount Shasta. Along the Wagon Camp road Comment
  UC1265443  Muhlenbergia montana F. W. Oettinger 1968-9-7 753 Siskiyou granite slope at n end Hancock Lake; Salmon Mountains 1950 Comment
  UC1222235  Myosotis discolor Joseph P. Tracy 1951-6-16 19464 Siskiyou ca. ___ <no mi. given> mi. n. of summit crossing of Siskiyou Mts. (on Takilma Happy Camp Rd.); Siskiyou Mts. Comment
  SBBG243  Myriopteris gracillima H. and M. Dearing 1939-7-1 3790 Siskiyou Salmon Mtn 1828 Comment
  RSA68893  Nama lobbii A. E. Culbertson 1943-7-1 64 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 airmiles of its headwaters to the west. Comment
  UC1299127  Nama lobbii Freed W. Hoffman 1948-7-13 2660 Siskiyou 9.4 mi sw of Tennant Comment
  RSA166186  Nama lobbii Donald Myrick 1961-6-22 319 Siskiyou On Hwy 89 near McCloud. 915 Comment
  CHSC96709  Narthecium californicum Gordon Leppig 1998-8-14 1011 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen. Subalpine fen in cirque west of Little Duck Lake. NAD 27 UTM Zone 10, 503813E, 4572466N. 2200 Comment
  HSC82353  Narthecium californicum Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4524 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  HSC96869  Narthecium californicum Gordon Leppig, J. Cromwell 1997-7-25 582 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UCD139967  Narthecium californicum A. H. Murphy 1956-8-16 56 S Siskiyou Big Marshy Meadows. Klamath National Forest. 1981 Comment
  RSA237899  Narthecium californicum Frederick W. Oettinger 1969-7-31 1112 Siskiyou Boggy meadow west of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  CAS-BOT-BC60323  Nasturtium officinale William Bridge Cooke 1940-7-12 15321 Siskiyou Near the Box Canyon of the Sacramento near Mount Shasta City. 914 Comment
  HSC82263  Navarretia divaricata Thomas W. Nelson, Jane P. Nelson 1980-7-5 5980 Siskiyou Fowler's Campground 1006 Comment
  CDA37848  Navarretia intertexta Jodi Aceves 2012-7-16 PDR# 470 P027567 Siskiyou Hawkinsville. 0 Comment
  POM75063  Navarretia intertexta Geo D. Butler 1908-8-27 157 Siskiyou Oro Fino Comment
  CHSC88392  Navarretia sinistra Jenny Marr 1993-7-1 151 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC219532  Nemophila parviflora J. H. Thomas 1954-5-13 4155 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. Along Rush Creek, Southwestern Siskiyou County 1127 Comment
  UC1560413  Nemophila parviflora E. Joyal and D. Mehlman 1988-6-25 1273 Siskiyou Happy Camp to Takilma road (at turn-off to Bolan Lake); , Happy Camp-Takilma Road 1524 Comment
  HSC22175  Nemophila parviflora var. austiniae J. O. Sawyer 1969-7-16 1150 Siskiyou W of Waterdog Lake 2073 Comment
  UC164112  Nemophila parviflora var. austiniae Geo. D. Butler 1910-4-24 1231 Siskiyou Quartz Valley Comment
  UC796661  Nemophila parviflora var. austiniae Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11739 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road w of Callahan 1066 Comment
  JEPS87825  Nepeta cataria Vernon H. Oswald and Lowell Ahart 1994-8-1 6445 Siskiyou near Weed (Old Highway 99, just s of Stewart Springs Rd) 923 Comment
  HSC593  Noccaea fendleri subsp. glauca William J. Ferlatte 1967-6-30 585 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  CAS-BOT-BC349914  Nothocalais alpestris Gilbert Muth 1966-7-14 389 Siskiyou Flat above Marble Valley, Marble Gap Trail, Marble Mts. 1828 Comment
  UC573272  Nothocalais troximoides M. H. Mitchell 1936-5-8 3 Siskiyou close to Schonchin Butte; Dorris Quad 1371 Comment
  CHSC69838  Nothochelone nemorosa J. O. Sawyer 1969-7-24 1457 Siskiyou Northeast facing slope above Sugar Lake. 1783 Comment
  JEPS105141  Nothochelone nemorosa Dean W. Taylor 1993-7-30 13990 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 miles east of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
  CDA7579  Onopordum tauricum T. C. Fuller 1959-12-1 3324 Siskiyou Fred Voelker ranch, west edge of Meiss Lake Basin, just south of Sam s Neck, ca. 15 miles southwest of Dorris. 0 Comment
  UCD134659  Onopordum tauricum W. T. Parsons; T. C. Fuller 1960-7-26 4878 Siskiyou Fred Voelker Ranch, west edge of Meiss Lake Basin, just south of Sam's Neck, ca. 15 miles southwest of Dorris. Comment
  JEPS84046  Orogenia fusiformis L. R. Heckard with J. Hickman et al. 1986-7-17 6547 Siskiyou ca. 1 mi. n.e. Buckhorn 2100 Comment
  CAS-BOT-BC458093  Orthilia secunda John Thomas Howell 1939-8-2 14921 Siskiyou Marble Mts.: Spirit Lake 1828 Comment
  HSC61510  Orthilia secunda Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  HSC69387  Orthilia secunda Maralyn A. Renner 1980-8-31 2664 Siskiyou Poker Flat at trailhead to Twin Valley 1524 Comment
  JEPS93913  Orthilia secunda Vernon H. Oswald and Lowell Ahart 1998-8-3 9431 Siskiyou w of Kangaroo Lake (near the Pacific Trail in the Scott Mountains); Scott Mountains 1981 Comment
  UC637089  Orthilia secunda Edward Lee 1934-8-13 1087 Siskiyou waterhead of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1463 Comment
  CAS-BOT-BC458087  Orthilia secunda Doris K. Kildale 1928-8-18 6450 Siskiyou Near head of North Fork of Salmon River at Finley's Upper Camp Comment
  HSC91017  Orthocarpus cuspidatus subsp. copelandii Jennifer Whipple 1976-7-9 1394 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2226 Comment
  JEPS116587  Orthocarpus cuspidatus subsp. copelandii Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -029 Siskiyou The Eddys, west of Mt. Shasta. East of Toad Lake trailhead, terminus of Forest Service Rd 40N64 headwaters of Middle Fork of upper Sacramento River. Mt. Eddy 2051 Comment
  UC718019  Orthocarpus cuspidatus subsp. copelandii Carl B. Wolf 1934-7-4 5938 Siskiyou 13.5 mi from Horse Creek Bridge (Horse Creek--Dry Lake Lookout); Siskiyou Mountains, Klamath River, Horse Creek, Dry Lake 1524 Comment
  RSA211401  Orthocarpus cuspidatus subsp. copelandii William J. Ferlatte 1967-8-17 958 Siskiyou Yellow Rose Mine, Trinity Alps. 1982 Comment
  UCSB17684  Orthocarpus cuspidatus subsp. copelandii Hardham, Clare 1961-7-1 Siskiyou Siskiyou Mtns. Comment
  UC103148  Orthocarpus imbricatus J. W. Congdon 1900-8-13 Siskiyou foot Mt. Shasta Comment
  HSC22168  Osmorhiza berteroi J. O. Sawyer 1969-7-12 1355 Siskiyou Edge of Sugar Lake 1799 Comment
  HSC76759  Osmorhiza occidentalis K. T. Stillman 1976-7-14 238 Siskiyou Marble Mtn. Wilderness Area Comment
  UCD127764  Osmorhiza purpurea J. M. Tucker; L. K. Mann 1963-7-5 3700 Siskiyou On Blake's Fork of South Russian Creek (a tributary of Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1615 Comment
  UCD127817  Oxypolis occidentalis A. A. Heller 1915-8-24 12204 Siskiyou Metcalf's ranch, northeast base of Mount Eddy. 1188 Comment
  SDSU9528  Ozomelis trifida D. F. Howe 1972-7-5 4875 Siskiyou 0.6 mile south of Oregon State line on road to Happy Camp. 1707 Comment
  CAS-BOT-BC316758  Packera cana John William Thompson 1936-7-8 13150 Siskiyou Lava Slopes of Lava Beds Nat. Monument Comment
  CAS-BOT-BC316755  Packera cana William Bridge Cooke 1940-8-22 15475 Siskiyou along the west rim of Mud Creek Canyon 2743 Comment
  SD46776  Packera streptanthifolia E. K. Balls, L. W. Lenz 1956-6-18 21722 Siskiyou 5.7 miles southeast of Gazelle, US Highway 99, Yreka to Dunsmuir 885 Comment
  POM149889  Paeonia brownii Geo. D. Butler 1910-4-23 1229 Siskiyou Quartz Valley. Comment
  UCSC004606  Panicum acuminatum var. fasciculatum Randall Morgan 2004-5-31 4179 Siskiyou Castle Crags State Park, Sacramento River, Middle Creek Comment
  HSC27221  Panicum capillare J. P. Smith, J. O. Sawyer 1971-9-18 4794 Siskiyou Hwy. 3 between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  UC203921  Panicum capillare Geo. D. Butler 1904-9-26 871 Siskiyou along creek near Yreka; near Yreka Comment
  CAS-BOT-BC422851  Papaver rhoeas W. R. Ernst 1960-6-14 741 Siskiyou About 1/4 mi. north of Gazelle on U. S. Highway 99. Comment
  RSA68923  Parnassia californica A. E. Culbertson 1943-9-3 34 Siskiyou Castle Lake. 14 Miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mts.2000' above Sacramento River within 10 air miles of its headwaters to the west. 1657 Comment
  CDA34723  Pastinaca sativa L. Ahart, John Dittes 2010-7-3 16937 Siskiyou West of the pipe crossing the Shasta River, about 10 yards south the Shasta River, about 300 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. Comment
  JEPS16030  Pastinaca sativa W. L. Jepson July, 1894 14262 Siskiyou Sisson Comment
  JEPS46471  Pastinaca sativa Rimo Bacigalupi 1959-7-1 7210 Siskiyou along irrigation ditch in front of Mt. Shasta Union High School (outskirts of town); Mt. Shasta (town) 1097 Comment
  CAS-BOT-BC202849  Paxistima myrsinites John Thomas Howell 1939-8-4 15056 Siskiyou Near Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC202861  Paxistima myrsinites R. F. Thorne 1969-8-2 63324 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Near jct. of Boulder Creek and N. Fork Salmon River, along trail to English Peak Comment
  CAS-BOT-BC202867  Paxistima myrsinites W. R. Dudley 1893-6-20 s.n. Siskiyou Castle Lake Trail, near Mt. Shasta Comment
  HSC68882  Paxistima myrsinites Maralyn A. Renner 1980-9-1 2756 Siskiyou Trail from Doe Flat to Trout Camp 1098 Comment
  SEINET10783891 Image available Pedicularis attollens Edwin B. Copel 1903-8-18 Copeland 3901 Siskiyou Mt. Eddy. Comment
  CAS-BOT-BC266636  Pedicularis bracteosa L. R. Short 1933-8-7 113 Siskiyou Marble Mountains, Klamath Forest 1828 Comment
  CAS-BOT-BC266653  Pedicularis bracteosa var. flavida Gilbert Muth 1969-8-11 s.n. Siskiyou Beneath high point of ridge S of Boulder Peak Comment
  UC609315  Pedicularis bracteosa var. flavida Eleanor Burks Hart 1938-8-25 928 Siskiyou Upper Wright Lake 2225 Comment
  CHSC1836  Pedicularis contorta V. Holt 1942-9-6 Siskiyou Caribou Lake, Trinity Alps. 2286 Comment
  HSC639  Pedicularis densiflora William J. Ferlatte 1967-6-30 596 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  UCD123373  Pedicularis groenlandica J. M. Tucker; D. V. Hemphill 1974-7-26 4293 Siskiyou Let 'Er Buck Meadows, ca. 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  JEPS84020  Pedicularis howellii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6427 Siskiyou 5 mi n of the town of Seiad Valley (cirque at head of Hell's Canyon, e slope of Kangaroo Mountain); Kangaroo Mountain 1828 Comment
  UC1483476  Pedicularis howellii Maralyn A. Renner 1980-7-23 1879 Siskiyou Pacific Crest Trail about .8 mi e of Cook and Green Pass; Klamath National Forest 1706 Comment
  UC221507  Pedicularis racemosa H. E. Brown Jul 1 1897-Jul 15 1897 488 Siskiyou n side of Mount Shasta 1524 Comment
  RSA749256  Pedicularis racemosa var. racemosa K. M. Meyer, A. Townesmith 2007-7-31 181 Siskiyou Shasta-Trinity National Forest. 8.1 mi. on NF Rd. 17, off US Hwy 97. 1607 Comment
  UCD77904  Pedicularis semibarbata Robert E. Preston 2001-6-30 1668 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1798 Comment
  HSC72948  Pellaea brachyptera M. S. Taylor, Overton 1980-7-8 3090 Siskiyou N side of 40N43 2.4 mi. W of its jct with 40N26, at W end of Lake Siskyou W of Mt. Shasta City 1341 Comment
  JEPS7207  Penstemon anguineus Geo. D. Butler 428 Siskiyou on trail beyond Whiskey Camp; Independence Creek, beyond Whiskey Camp Comment
  JEPS84305  Penstemon anguineus L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6364 Siskiyou ca 1/2 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass); w of Cook and Green Pass, e of Red Butte summit 579 Comment
  CDA41886  Penstemon anguineus T. C. Fuller 1974-9-24 20029 Siskiyou Above Reeves Ranch Spring, south slope of the Siskiyou Mountains. 0 Comment
  SEINET7073531  Penstemon centranthifolius A. G. Vestal 1963-6-1 s.n. Siskiyou Road to Dwinnell Reservoir [Lake Shastina]. UTM Zone 10, 548518mN, 4593966mN. Coordinate datum: NAD27. Comment
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Jul 13 2018
  UC564176  Penstemon cinereus Elmer I. Applegate 1935-6-2 9268 Siskiyou Indian Wells Lava Beds National Monument, Indian Wells Comment
  JEPS101584  Penstemon cinicola Dean W. Taylor 1987-6-26 9068 Siskiyou meadow 0.5 miles West of west end Medicine Lake, 2042 Comment
  UC1586909  Penstemon cinicola Juha Pykala and D. H. Norris 1987-7-8 2423 Siskiyou s and w sides of lake, between lake and road Little Medicine Lake 2040 Comment
  RSA233656  Penstemon davidsonii Robert F. Thorne, Frederick W. Oettinger 1969-8-10 39005 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  CAS-BOT-BC265366  Penstemon davidsonii var. davidsonii David D. Keck 1938-8-18 11493 Siskiyou Horse Camp, not too near springs, around the mountain 2286 Comment
  CAS-BOT-BC265374  Penstemon davidsonii var. davidsonii Marion Ownbey; Fred G. Meyer 1940-7-4 2185 Siskiyou On ridge above head of Brewer Creek, E side of Mount Shasta Comment
  NY591453  Penstemon davidsonii var. davidsonii L. C. Wheeler 1934-8-5 3044 Siskiyou Siskiyou Mountains, Condrey Mountain. 2164.1 Comment
  UC618698  Penstemon davidsonii var. davidsonii W. Bridge Cooke 1938-8-18 11493 Siskiyou Horse Camp slopes Mount Shasta 2438 Comment
  HSC19127  Penstemon deustus J. O. Sawyer 1969-7-9 1262 Siskiyou Summit above S Sugar Lake. 2378 Comment
  SBBG7139  Penstemon deustus H. and M. Dearing 1939-7-1 3788 Siskiyou Salmon Mtn 1828 Comment
  UC886951  Penstemon deustus var. suffrutescens Lewis S. Rose 1940-6-14 40586 Siskiyou Indian Well Lava Beds National Monument, Indian Well 1524 Comment
  RSA34969  Penstemon gracilentus Roxana S. Ferris, Laura Lorraine 1941-8-11 10507 Siskiyou 3 miles from Medicine Lake on road to Modoc Lava Beds National Monument. Shasta National Forest. Comment
  RSA408035  Penstemon gracilentus Cora Mae Life 1923-08 14590 Siskiyou Mt. Shasta Comment
  RSA78949  Penstemon gracilentus E. K. Balls, Percy C. Everett 1952-10-12 18176 Siskiyou 3.1 mi W of Boundary, Lava Beds Nat'l Monument on road from Indian Well Ranger Station to Tenant. 1372 Comment
  SEINET10432477  Penstemon humilis var. humilis Karl A. Vincent 1987-6-28 4441 Siskiyou Cascade Range, Mt. Shasta; between Mt. Shasta and the Whaleback, along Andesite - Military Pass Rd. ca 4.6 mi SE of jct. US 97 located 14.4 mi NE of Jct. US 97 and I-5 Business loop in Weed 1554 Comment
  SEINET3160433  Penstemon laetus G. D. Butler 1910-5-11 1338 Siskiyou Shasta Valley Comment
  UC1187079  Penstemon laetus var. sagittatus David D. Keck 1940-6-13 5170 Siskiyou Weed , n side of town, Grass Lake (n side of town on Route 97) Comment
  NY604556  Penstemon laetus var. sagittatus K. A. Vincent 1987-8-12 4511 Siskiyou Cascade Range, Mount Shasta; on lava flow between Mount Shasta and Whaleback, along Andesite - Military Pass Road, ca. 1 mile southeast of jct. US 97, ca. 14.4 miles northeast of jct. US 97 and I-5 Bus. Loop in Weed. 1432.6 Comment
  NY604563  Penstemon laetus var. sagittatus A. A. Heller 1938-7-12 15256 -a Siskiyou Along U.S. Highway 97, near the western base of Deer Mountain Comment
  NY604573  Penstemon laetus var. sagittatus W. B. Cooke 1972-6-30 45409 Siskiyou Andesite - Military Pass Road, Mount Shasta. Along dirt road just beyond berm. 5000 Comment
  HSC86631  Penstemon newberryi D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta, S side of Red Butte 2134 Comment
  JEPS7254  Penstemon newberryi var. berryi Leonard Joss 1922-1 Siskiyou Etna Mills Comment
  UC886831  Penstemon newberryi var. berryi John Thomas Howell 1937-7-26 13516 Siskiyou Caribou Basin Salmon-Trinity Alps 1981 Comment
  UC313697  Penstemon newberryi var. newberryi David D. Keck 1927-8-16 304 Siskiyou 4 mi E of Mt. Shasta City (Sisson) (on W flank of Mount Shasta); Mount Shasta 1609 Comment
  UC335593  Penstemon newberryi var. newberryi unknown Aug. 1878 Siskiyou Shasta Comment
  CHSC114659  Penstemon parvulus J. Kierstead 1990-7-18 90 -108 Siskiyou Shasta-Trinity National Forests. Forest Service Rd. 40N26 at Gumboot/Mumbo Basin pass. 1950 Comment
  SEINET10865390  Penstemon parvulus F. Marion Ownbey, Ruth P. Ownbey 1938-7-19 Ownbey 1749 Siskiyou Rocky knoll, 2 1/2 mi nw of dry lake lookout, summit of the siskiyou mtns. Comment
  UC1238905  Penstemon parvulus Freed W. Hoffman 1951-7-21 4058 Siskiyou 1/2 mi e summit (on road from a point 1.1 mi n of Gazelle, w towards Fort Jones, and 9.3 mi on this road); North Coast Ranges, Scarface Mtn., n of Gazelle Comment
  RSA238759  Penstemon procerus subsp. brachyanthus Frederick W. Oettinger 1968-8-18 570 Siskiyou West end of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  CHSC1883  Penstemon procerus subsp. formosus V. Holt 1932-6-26 Siskiyou Mt. Eddy. 2133 Comment
  CHSC75762  Penstemon roezlii Vernon H. Oswald; Lowell Ahart 1999-7-5 9800 Siskiyou Hwy. 3 on Scott Mtn. 5.9 mi southeast of Gazelle-Callahan Hwy., 0.6 mi northwest of the highway summit. 1569 Comment
  UC164349  Penstemon roezlii Geo. D. Butler 1908-6-28 431 Siskiyou Old mining dump near Oro Fino; Old mining dump near Oro Fino Comment
  RSA401885  Penstemon speciosus E. E. Stanford 1930-6-15 1591 Siskiyou Near Shasta City. 1098 Comment
  UC1037452  Penstemon speciosus Douglas Barbe 1955-7-1 678 Siskiyou 1.3 mi e Etna (s of the Westside Rd. to Callahan); Klamath Mountains 853 Comment
  RSA47610  Penstemon speciosus Roxana S. Ferris, Laura Lorraine 1948-6-12 11729 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  UCSB6201  Penstemon speciosus Phillips, Priscilla 1960-6-13 Siskiyou Rt. 97, 11 miles north of Weed, lower slopes of Mt. Shasta 1097 Comment
  UC1090395  Perideridia bolanderi subsp. bolanderi Milo S. Baker 1957-6-16 13158 Siskiyou trip to Scott Mt. aftern turn-off near Callahan; North Coast Ranges Comment
  UC1390011  Perideridia leptocarpa T. I. Chuang, I. Fukuda, and A. Weston 1963-7-7 5882 Siskiyou 2.7 mi n Callahan (on road to Etna) Comment
  JEPS12329  Perideridia oregana Geo. D. Butler 1909-6-8 925 Siskiyou near Yreka; Sims Hill Comment
  UC1446414  Perideridia oregana Laura Witherspoon 1980-9-17 124 Siskiyou Oak Knoll Ranger District 762 Comment
  UC166021  Perideridia oregana Geo. D. Butler 1910-8-7 1822 Siskiyou Humbug Mountain 1219 Comment
  UC1400336  Perideridia parishii subsp. latifolia Frederick W. Oettinger 1968-8-12 493 Siskiyou meadow just n Tobacco Lake (along trail from w end of Hancock Lake, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  HSC64440  Persicaria amphibia J. P. Smith, Steve Selva 1970-8-8 4558 Siskiyou Juanita Lake Comment
  UCD99566  Persicaria maculosa Morris Halperin 1930-7-11 4 Siskiyou Eureka. Comment
  UC1177549  Phacelia Lincoln Constance and Rimo Bacigalupi 1959-6-16 3673 Siskiyou w slope of mt 3.6 mi above Mt. Shasta (city) (on road to Panther Meadows); Mt. Shasta 1524 Comment
  HSC97703  Phacelia cookei Thomas W. Nelson, Jane Nelson 2006-7-1 9450 Siskiyou Along USFS Rd. 4319, Military Pass Rd., The Whaleback 1392 Comment
  UC1442839  Phacelia cookei W. B. and V. G. Cooke 1968-7-1 39233 Siskiyou Andesite Rd near Jct. with U.S. 97 (n base of mt.); Mt. Shasta 1524 Comment
  HSC61920  Phacelia corymbosa Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  HSC77342  Phacelia corymbosa L. P. Janeway 1983-7-4 383 Siskiyou Near top of Little Grayback Mtn. 1860 Comment
  POM65428  Phacelia corymbosa E. B. Copeland 1903-8-18 3831 Siskiyou Mt. Eddy. Comment
  RSA30618  Phacelia egena Lincoln Constance, R. C. Rollins 1942-5-13 2900 Siskiyou Klamath River near Clear Creek, eight miles south of Happy Camp. 305 Comment
  UC1024070  Phacelia greenei Dorothy Parker 1954-4-30 622 Siskiyou Scott Valley Siskiyou Mountains (e side) 853 Comment
  UC618687  Phacelia hastata subsp. compacta John Thomas Howell 1938-8-21 11551 Siskiyou Horse Camp Flats Mount Shasta, vicinity of Horse Camp Basin Comment
  JEPS94266  Phacelia hastata subsp. hastata Vernon H. Oswald and Lowell Ahart 1998-6-11 9181 Siskiyou ne of Weed (Shasta National Forest plantation on w side of Highway 97, 2.2 mi ne of Lake Shastina-Big Springs Road); Shasta National Forest, Highway 97 1066 Comment
  UC164119  Phacelia heterophylla subsp. virgata Geo. D. Butler 1910-5-22 1386 Siskiyou Yreka Creek Comment
  JEPS25846  Phacelia heterophylla subsp. virgata Rimo Bacigalupi with L. Constance and L. Heckard 1961-7-21 7472 Siskiyou along roadbank on state hwy 96 about 5 mi s Clear Creek ((or about 4 mi n of Swillup Creek)); Klamath River 292 Comment
  POM73741  Phacelia heterophylla subsp. virgata Geo. D. Butler 1910-5-22 1386 Siskiyou Yreka Creek. Comment
  UC1055964  Phacelia heterophylla subsp. virgata Edw. L. Greene June 1876 Siskiyou Comment
  UC1181205  Phacelia leonis Rimo Bacigalupi with Mr. and Mrs. Van Deventer and Don Liles 1959-7-10 7296 Siskiyou just e Del Norte County line (about 4 mi nne of Preston); Siskiyou Mts., Twin Valley, watershed of Indian Creek 1493 Comment
  JEPS2030  Phacelia mutabilis Willis L. Jepson 1894-8-4 21040 Siskiyou Horse Camp Comment
  SBBG41209  Phacelia mutabilis J. T. Howell 1939-8-2 Siskiyou Spirit Lake, Marble Mtns 1828 Comment
  SD72084  Phacelia mutabilis W. B. Cooke 1939-7-7 13603 Siskiyou Mt. Shasta. Below Wagon Camp. 1737 Comment
  UC1017763  Phacelia mutabilis C. L. Hitchcock 1954-6-22 20227 Siskiyou 1 mi w Somes Bar (on road to Camp Three) Comment
  UCD77216  Phacelia mutabilis Robert E. Preston 2001-7-21 1741 Siskiyou Klamath National Forest, Rainbow Mountain, T42N R1W sw 1/4 of ne 1/4 Section 22 2255 Comment
  JEPS1092  Phacelia procera W. L. Jepson 1937-7-30 18562 Siskiyou Poker Flat western Siskiyou Mts. Comment
  CAS-BOT-BC141450  Phacelia ramosissima var. eremophila Doris K. Kildale 1929-6-25 8363 Siskiyou 6 miles north of Klamath River at Hornbrook 609 Comment
  CHSC93535  Phacelia ramosissima var. ramosissima Lowell Ahart; John Dittes 2005-6-10 12084 Siskiyou Under a juniper tree, about 50 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC103014  Phalaris arundinacea J. P. Smith 2014-6-6 13871 Siskiyou Along State Route 96 at the Wingate River Access to the Klamath River 307 Comment
  CAS-BOT-BC77410  Philadelphus lewisii Volney Rattan 1879-1-1 s.n. Siskiyou Siskiyou Mts. Comment
  CAS-BOT-BC77413  Philadelphus lewisii Carl B. Wolf 1930-10-23 1759 Siskiyou Along the Klamath River 1 mile above Hamburg 243 Comment
  CAS-BOT-BC77419  Philadelphus lewisii Alice Eastwood; John Thomas Howell 1937-6-26 5062 Siskiyou Near Forks of Salmon Comment
  CAS-BOT-BC77424  Philadelphus lewisii Gilbert Muth 1965-8-3 s.n. Siskiyou Down creek from Marble Valley Comment
  CDA17141  Philadelphus lewisii G. F. Hrusa 2001-6-6 15855 Siskiyou Siskiyou Mountains; Along Hwy 96 at Scott R. Bridge. 426 Comment
  RSA759840  Philadelphus lewisii Robert F. Thorne 1969-8-2 63398 Siskiyou Klamath Nat'l Forest, Salmon Mountains: Marble Mtn Wilderness, trail to English Peak, along N fork of Salmon River at Cedars 1159 Comment
  UCR222480  Philadelphus lewisii R. F. Thorne 1969-8-2 63398 Siskiyou Klamath Ranges Region; Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, trail to English Peak, along N fork of Salmon River at Cedars 1159 Comment
  UCSB13234  Philadelphus lewisii Breedlove, Dennis 1962-6-10 Siskiyou On the north bank of the Klamath River at its junction with Goff Creek; 4.5 miles west of Seiad 411 Comment
  RSA0097437  Philadelphus lewisii Bonnie C. Templeton 1930-6-15 s.n. Siskiyou Shasta River Canyon, near Yreka. Comment
  RSA239100  Phleum pratense Frederick W. Oettinger 1968-9-5 738 Siskiyou Bear Meadow, Tom's Lake region. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2188 Comment
  CDA40296  Phlox adsurgens T. C. Fuller 1958-6-18 1820 Siskiyou Summit of Siskiyou Mountains along road between Cave Junction & Happy Camp. 0 Comment
  UC1408778  Phlox adsurgens Frederick W. Oettinger and R. F. Thorne 1969-8-6 1240 Siskiyou Pine Lake, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area 1874 Comment
  HSC17163  Phlox diffusa Marion Ownbey, Ruth Ownbey 1938-7-20 1762 Siskiyou Near Dry Lake Lookout, summit of Siskiyou Mts. Comment
  SBBG30601  Phlox diffusa D. Myrick 1968-6-27 2048 Siskiyou Yellow Rose Mine above Big Flat, head of Coffee Crk; Trinity Alps 1828 Comment
  UCSB25045  Phlox diffusa Keefe, Joseph 1967-7-11 Siskiyou Near summit of hill by Little Castle Lake; south of Castle Lake; 10 miles southwest of town of Mt. Shasta 2011 Comment
  UC1080548  Phlox diffusa S. S. Tillett 1956-7-9 630 Siskiyou ca 8 mi se Callahan (e-facing slope of Scott Mtn., Siskiyou-Trinity Co. line); Scott Mtn. 2072 Comment
  UC1442633  Phlox hirsuta William J. Ferlatte 1978-5-28 1904 Siskiyou 0.4 mi e Interstate 5 (0.2 mi n of Hwy 3 on way to Montague, hills n of Yreka) 830 Comment
  POM202876  Phlox speciosa subsp. occidentalis J. T. Howell, Alice Eastwood 1934-4-20 1756 Siskiyou Near Yreka on Fort Jones Road Comment
  SEINET3145545  Phlox speciosa subsp. occidentalis G. D. Butler 1910-4-15 1175 Siskiyou Yreka Comment
  UC205784  Phlox speciosa subsp. occidentalis Geo. D. Butler 1910-4-15 1175 Siskiyou Yreka hills Yreka Comment
  CDA40275  Phlox speciosa subsp. occidentalis T. C. Fuller 1958-4-16 4811 Siskiyou Giebner property, 4 miles south of Yreka. 0 Comment
  RSA431456  Phoenicaulis cheiranthoides L. C. Wheeler 1934-8-9 3078 Siskiyou Head of Jaynes Canyon. Siskiyou Mtns. (Mt. Diablo Mer.) 1921 Comment
  CAS-BOT-BC135021  Phoradendron bolleanum Louis C. Wheeler 1934-6-26 2789 Siskiyou Camp Lowe, Klamath River, Siskiyou Mts. 762 Comment
  CAS-BOT-BC135027  Phoradendron bolleanum Louis C. Wheeler 1934-6-26 2789 Siskiyou Hornbrook 731 Comment
  HSC30282  Phoradendron juniperinum William J. Ferlatte 1969-6-25 1184 Siskiyou Big Flat 1524 Comment
  RSA604461  Phoradendron libocedri Louis C. Wheeler 1959-7-21 7586 Siskiyou Salmon Mountains: Dry Gulch Mine off Crawford Creek off South Fork Salmon River. 1220 Comment
  CHSC96441  Phyllodoce empetriformis Gordon Leppig; T. LaBanca, L. Arguello 1997-6-27 496 Siskiyou Klamath National Forest. Russian Wilderness, Little Duck Lake Fen. In cirque west of Little Duck Lake. UTM Zone 10 NAD 1927, 503813E, 4572466N. 2200 Comment
  HSC4824  Phyllodoce empetriformis J. O. Sawyer 1968-6-25 290 Siskiyou NE of N Horse Range Lake 2012 Comment
  SEINET3108276  Phyllodoce empetriformis Steve Selva, Roger Jensen 1974-8-23 41 Siskiyou Collected in the environs of Devil's Punchbowl. Comment
  HSC77123  Physaria occidentalis K. T. Stillman 1976-7-7 172 Siskiyou Marble Mtn. Wilderness Area Comment
  CAS-BOT-BC140593  Physocarpus capitatus Grant 1902-9-13 5182 Siskiyou Dunsmuir Comment
  RSA451848  Physocarpus capitatus M. B. Dunkle 1944-7-16 9113 Siskiyou Beaver Creek Camp. Comment
  CAS-BOT-BC73475  Picea breweriana Arthur Menzies 1961-7-1 s.n. Siskiyou Klamath National Forest - Copper Butte near Cook & Green Pass, north of Seiad Valley. Comment
  CDA493  Picea breweriana G. Fred Hrusa 1998-7-5 14675 Siskiyou Happy Camp- O Brien Rd; S side below summit. Comment
  HSC68989  Picea breweriana Maralyn A. Renner 1980-8-7 2372 Siskiyou Ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  RSA264592  Picea breweriana L. E. Berriman 1941-01 s.n. Siskiyou North slopes of Russian Peak, west of Callahan. 1829 Comment
  UCD134307  Picea engelmannii L. E. Berriman 1940-8-30 s.n. Siskiyou North Coast Ranges. Sugar Creek, a tributary of the Scott River. 1432 Comment
  RSA31098  Picea engelmannii L. E. Berriman 1940-8-30 s.n. Siskiyou Sugar Creek, a tributary of the Scott River; Mount Diablo Meridian 1433 Comment
  RSA0086516  Pinus albicaulis Bonnie C. Templeton 1968-6-13 11334 Siskiyou Mt. Shasta, in the region of Panther Meadows. 2804 Comment
  UC60967  Pinus albicaulis Geo. B. Grant 1902-9-1 5123 Siskiyou Horse Camp Mount Shasta, Horse Camp 2438 Comment
  HSC1371  Pinus balfouriana R. J. Mastrogiuseppe 1967-6-30 Siskiyou Slope of Mt. Eddy, Bulk Collection # 88 2271 Comment
  HSC45575  Pinus balfouriana Maralyn O'Meara 1972-9-14 115 Siskiyou Ridge above trail to Yellow Rose Mine Comment
  UC1452399  Pinus balfouriana Ronald J. Mastrogiuseppe 1967-7-1 Siskiyou near Upper High Camp Creek 2164 Comment
  UCD134408  Pinus balfouriana J. M. Tucker; L. K. Mann, S. L. Holloway 1963-8-18 3769 Siskiyou Southwestern ridge of Black Marble Mountain, Marble Mountain Wilderness Area. 2133 Comment
  UC401405  Pinus contorta Annie M. Alexander and L. Kellogg 1911-6-20 161 Siskiyou Jackson Lake 1798 Comment
  HSC67797  Pinus contorta var. murrayana J. O. Sawyer, J. Cole 1980-7-22 3998 Siskiyou Little Horse Peak 1720 Comment
  UCD134728  Pinus jeffreyi John M. Tucker 1963-8-18 3768 Siskiyou Between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area. 2103 Comment
  SEINET11738788  Pinus jeffreyi C. G. Pringle 1882-1 s.n. Siskiyou no further locality 1524 Comment
  CAS-BOT-BC78950  Pinus monticola Doris K. Kildale 1929-8-24 8840 Siskiyou Preston Peak 2225 Comment
  CAS-BOT-BC78953  Pinus monticola Gilbert Muth 1966-8-6 193 Siskiyou Marble Valley, Marble Mts. 2072 Comment
  CAS-BOT-BC78959  Pinus monticola H. A. Thomas; J. H. Thomas 1954-7-24 4517 Siskiyou Salmon-Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  JEPS101155  Piperia unalascensis Dean W. Taylor 1996-6-18 15700 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1249 Comment
  UC1170106  Plagiobothrys hispidus W. Bridge Cooke 1956-7-16 30295 Siskiyou above Hotlum Station n side Mount Shasta; n side Mount Shasta 1524 Comment
  JEPS107650  Plantago eriopoda Lowell Ahart, John Dittes 2005-6-10 12104 Siskiyou Steep springy sloper, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  RSA237615  Plantago lanceolata Frederick W. Oettinger 1967-8-3 239 Siskiyou Along Hancock Lake trail near the eastern most campsite along NW side of the Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  CDA6617  Plantago major T. C. Fuller 1962-8-3 9509 Siskiyou Siskiyou Mountains: Gravel bar of Beaver Creek at the mouth of Raggedass Gulch, 5 miles north of the Klamath River. 0 Comment
  HSC30626  Plantago major Frederick W. Oettinger 1969-8-9 1312 Siskiyou Above trail near Young's Cabin on N Fork of Salmon River, Salmon Mts. Comment
  HSC46149  Platanthera dilatata var. leucostachys J. P. Smith, Steve Selva 1970-7-18 4491 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  UCD138977  Platanthera dilatata var. leucostachys J. M. Tucker; D. V. Hemphill 1974-7-26 4291 Siskiyou Let 'Er Buck Meadows, ca. 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  UC1299357  Platanthera hyperborea Freed W. Hoffman 1950-7-13 3651 Siskiyou Baldy Mountain 1 mi from Lookout on road to Indian Creek (western Siskiyou County); Baldy Mountain Comment
  RSA126343  Platanthera leucostachys I. L. Wiggins 1955-7-21 13439 Siskiyou Rush Creek Trail 2 mi. above Mt. View Ranch. 1098 Comment
  RSA382885  Platanthera leucostachys Louis C. Wheeler 1934-6-18 2725 Siskiyou Cottonwood Creek, Siskiyou Mts. Mt. Diablo Mer. 1311 Comment
  JEPS109706  Platanthera sparsiflora Dean W. Taylor 2002-7-20 18253 Siskiyou Forest Road 17 ca. 3.3 miles west (above) junction with Stewart Springs Road, Parks Creek 1524 Comment
  HSC61294  Platanthera sparsiflora Ruby Van Deventer 1960-7-14 Siskiyou Flint Valley Comment
  RSA237641  Platanthera stricta Frederick W. Oettinger 1967-7-30 217 Siskiyou Approx. 300 yards up tributary of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1784 Comment
  CAS-BOT-BC261039  Poa Gilbert Muth 1966-7-31 477 Siskiyou North side of Black Mountain, Marble Mts. 2057 Comment
  SEINET10960596  Poa A. Arthur Heller 1919-6-25 Heller 13266 Siskiyou Compton's prairie, north base of Mt. Eddy in the yellow pine belt. An almost treeless grassy area, well watered by the small streams forming the Shasta river. 1158 Comment
  UC144655  Poa X fibrata A. A. Heller 1905-6-19 8070 Siskiyou Grenada Station Comment
  CAS-BOT-BC244384  Poa annua Lewis S. Rose 1945-6-22 45177 Siskiyou Beaver Creek and Klamath River 548 Comment
  POM259586  Poa bolanderi J. T. Howell 1939-8-9 15218 Siskiyou Sky High Valley, Marble Mountains. 1829 Comment
  HSC27349  Poa cusickii subsp. epilis J. P. Smith, Maralyn O'Meara, J. O. Sawyer 1972-7-3 5697 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  UCD90924  Poa cusickii subsp. epilis Rimo Bacigalupi 1959-7-1 7197 Siskiyou above Mt. Shasta Ski Bowl Lodge; southwestern slopes of Mt. Shasta. 2834 Comment
  CAS-BOT-BC256018  Poa pratensis John Thomas Howell; T. C. Fuller 1980-4-29 53431 Siskiyou Along East Fork Scott River 2 miles east of Callahan on road to Gazelle 990 Comment
  HSC38849  Poa pratensis J. P. Smith, Steve Selva 1970-6-16 4074 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  RSA129255  Poa pratensis H. A. Jensen 1933-7-27 s.n. Siskiyou Grey Butte 2073 Comment
  CAS-BOT-BC256015  Poa pratensis William M. Hiesey 1947-8-23 556 Siskiyou Klamath River along Highway 96, one mile west of Beaver Creek, 2 mi. N. of Walker 548 Comment
  UCD91764  Poa pringlei A. A. Heller 1921-7-7 13566 Siskiyou East slope of Mt. Eddy, in the Canadian Life Zone. Comment
  POM112569  Poa rhizomata Geo D. Butler 1910-4-21 1206 Siskiyou Kidder Creek Comment
  RSA577537  Poa secunda L. C. Wheeler 1935-5-11 3478 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  HSC102656  Poa secunda subsp. juncifolia J. P. Smith 2009-6-1 12615 Siskiyou Road to Tenant. Comment
  CAS-BOT-BC243215  Poa secunda subsp. secunda John Thomas Howell 1939-8-2 14912 Siskiyou Spirit Lake, Marble Mountains 1828 Comment
  CAS-BOT-BC243218  Poa secunda subsp. secunda A. A. Heller 1919-6-25 13266 Siskiyou Compton's prairie, N base of Mount Eddy 1158 Comment
  CAS-BOT-BC243231  Poa secunda subsp. secunda A. A. Heller 1920-6-29 13402 Siskiyou Near Wagon Creek falls, E side of Mount Eddy Comment
  CAS-BOT-BC243237  Poa secunda subsp. secunda Geo. D. Butler 1909-5-22 821 Siskiyou Near Yreka Comment
  HSC34107  Poa secunda subsp. secunda J. O. Sawyer 1969-7-24 1465 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  HSC77119  Poa secunda subsp. secunda K. T. Stillman 1976-6-25 98 Siskiyou Marble Mtn. Wilderness Area, between Marble Gap and Elk Valley Trail Comment
  CDA32654  Poa secunda subsp. secunda G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2775 Siskiyou Northwest point of Chaparral Hill overlooking Scott River, 2 miles (3.2 km) west of Fort Jones on Lighthill Grade Road. Comment
  UC23982 Image available Polemonium californicum Harley P. Chandler June, 1901 1671 Siskiyou Marble Mountain North Coast Ranges, Marble Mountain 2438 Comment
  UC52662  Polemonium carneum W. P. Gibbons 1895-6 b 2 Siskiyou Comment
  JEPS69907  Polemonium micranthum Geo. D. Butler 1909-3-16 557 Siskiyou Yreka Comment
  HSC45816  Polemonium pulcherrimum J. P. Smith, J. O. Sawyer 1972-6-30 5642 Siskiyou Ridge W of Little Duck Lake. 2378 Comment
  UC572805  Polemonium pulcherrimum W. Bridge Cooke 1937-7-31 9167 Siskiyou Mt. Shasta 3048 Comment
  HSC41813  Polemonium pulcherrimum var. shastense Robert Wharton 1977-8-20 Siskiyou Along E slope of Mt. Shasta at Wintun Glacier along ridge between Ash & Brewer Creeks 3354 Comment
  CAS-BOT-BC6422  Polemonium tricolor Harley Pierce Chandler 1901-6-1 1671 Siskiyou North Coast Ranges, Marble Mountain 2438 Comment
  CHSC48339  Polyctenium fremontii var. fremontii Vernon Oswald 1986-5-29 2073 Siskiyou Hwy 97 between Grass Lake and Hebron Summit, 26.9 mi ne of Weed. 1432 Comment
  RSA275400  Polygala californica J. O. Sawyer, E. Cope 1977-6-18 2930 Siskiyou along Clear Creek Trail between Ten Mile Creek and Bear Pen Creek. 610 Comment
  CAS-BOT-BC170335  Polygala cornuta var. cornuta Wayne Roderick 1967-7-25 s.n. Siskiyou Cabin Meadow, n. of Cory Peak, Scott Mts. 1828 Comment
  CAS-BOT-BC170338  Polygala cornuta var. cornuta A. A. Heller 1921-7-22 13584 Siskiyou Spring Hill near the town of Mt. Shasta 1082 Comment
  UCD99839  Polygonum aviculare subsp. neglectum A. A. Heller 1915-8-24 12207 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1188 Comment
  CAS-BOT-BC414396  Polygonum californicum Louis C. Wheeler 1934-6-21 2747 Siskiyou Klamath National Forest. W. Fork Cottonwood Cr. 1005 Comment
  SEINET3405779 Image available Polygonum douglasii Rimo Bacigalupi, Drs. Reino & Aloha Alava 1958-9-3 6898 Siskiyou Poker Flat, Siskiyou Mtns 1536 Comment
  OBI72046  Polygonum douglasii Barbara Ertter 1990-7-14 9310 Siskiyou E side Mt. Eddy ca 4 airmiles due W of Mt Shasta City, at streamlet ner end of FR 41N53 ca 1 mi N of morgan Meadows 1676 Comment
  POM104493  Polygonum douglasii Geo. D. Butler 1910-7-8 1676 Siskiyou Shackleford Creek. 1829 Comment
  UC164462  Polygonum douglasii subsp. douglasii Geo. D. Butler 1910-7-9 1706 Siskiyou Shackleford Creek 1219 Comment
  JEPS79755  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 1908-7-23 192 Siskiyou lot w Catholic Cemetary; Yreka Comment
  UC375322  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 189 Siskiyou near Yreka Comment
  UC637130  Polygonum douglasii subsp. spergulariiforme Annetta Carter 1934-8-10 689 Siskiyou s bank of river between McKinney Creek and Parkhouse Creek (near Hamburg); Klamath River 609 Comment
  CAS-BOT-BC418592  Polygonum minimum Doris K. Kildale 1928-7-4 5538 Siskiyou 1 1/2 miles east of summit of divide between Sawyers Bar & Etna Comment
  SEINET3399369 Image available Polygonum minimum Joseph P. Tracy 1935-8-7 14618 Siskiyou Devil's Canyon Mts, at head of White Creek Comment
  SDSU9659  Polygonum phytolaccifolium D. F. Howe 1965-8-8 4127 Siskiyou Saddle south of Little Grayback, Klamath National Forest. 1402 Comment
  RSA237758  Polygonum phytolaccifolium Frederick W. Oettinger 1969-8-7 1274 Siskiyou SE end of English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  RSA237794  Polygonum phytolaccifolium Frederick W. Oettinger 1967-8-23 320 Siskiyou English Peak Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  CHSC88099  Polygonum polygaloides subsp. confertiflorum Jenny Marr 1993-7-1 109 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC419872  Polygonum polygaloides subsp. confertiflorum A. A. Heller 1925-7-25 13901 Siskiyou Along the Pacific highway near Edgewood. Comment
  CAS-BOT-BC109281  Polygonum shastense A. A. Heller 1939-7-27 15433 Siskiyou Mount Shasta. Border of Panther Meadow, upper edge of the Canadian Life Zone. 2438 Comment
  CAS-BOT-BC109287  Polygonum shastense William Bridge Cooke 1938-8-18 11496 Siskiyou Mount Shasta. Horse Camp Slopes. 2514 Comment
  HSC17549  Polygonum spergulariiforme Geo. D. Butler 1908-9-6 198 Siskiyou Upper field, Butler's Ranch near Yreka Comment
  RSA44882  Polygonum spergulariiforme J. C. Roos, L. Roos 1948-9-1 3941 Siskiyou Fort Jones Comment
  HSC73322  Polypodium californicum Gail Newton 1980-6-20 483 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC232929  Polypogon Melissa A. Berry 1957-7-11 s.n. Siskiyou Sugar Creek CCC Road, W of Callahan 1463 Comment
  UCD91021  Polypogon interruptus Chandler Jensen 1957-4-29 s.n. Siskiyou Redding Airport, Redding. Comment
  CHSC91236  Polypogon monspeliensis Lowell Ahart; John Dittes 2005-6-9 12003 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  UC1023835  Polypogon monspeliensis Douglas Barbe 1955-7-4 88 Siskiyou on Parrot Mill Rd 10 mi s Etna; Klamath Mountains 975 Comment
  POM210936  Polystichum californicum L. C. Wheeler 1934-8-16 3172 Siskiyou Siskiyou Mountains: 2 mi. east of White Mt. 1920 Comment
  HSC79153  Polystichum imbricans C. J. Thomas 1983-10-1 103 Siskiyou 0.75 mi. from Indian Scotty campground on gravel rd. to Paradise Lake 854 Comment
  POM215873  Polystichum imbricans L. C. Wheeler 1935-4-16 3421 Siskiyou Soap Creek, Siskiyou Mountains. (Mt Diablo Mer.) 1585 Comment
  HSC58845  Polystichum imbricans subsp. imbricans Marvin Butler 1971-7-20 169 Siskiyou Near Twin Lakes, close to the town of Cave Junction 1585 Comment
  HSC30491  Polystichum imbricans subsp. imbricans Frederick W. Oettinger 1969-8-25 1554 Siskiyou Salmon Mtns., Little N Fork stream crossing along trail from end of the logging rd. to the Devil's Canyon trail 1220 Comment
  UC42137  Polystichum kruckebergii unknown 1878-6-16 Siskiyou near Mt. Shasta Comment
  HSC79125  Polystichum lemmonii C. J. Thomas 1983-10-1 77 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  HSC79128  Polystichum lemmonii C. J. Thomas 1983-10-1 74 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  RSA105460  Polystichum lemmonii G. D. Barbe 1955-7-26 287 Siskiyou Among dry rocks at a small pond on the N slope of Scott Mtn. 1982 Comment
  RSA693359  Polystichum lemmonii M. B. Dunkle 1945-1 9310 Siskiyou Klamath National Forest, Marble Mountains 2439 Comment
  SEINET6409479  Polystichum lemmonii M. J. Williams 1967-9-2 s.n. Siskiyou Cabin Meadow 1829 Comment
  HSC26110  Polystichum lonchitis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5681 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  HSC79133  Polystichum lonchitis C. J. Thomas 1983-10-1 86 Siskiyou N side of Black Mtn. in Marble Mtn. Wilderness 1976 Comment
  LA204823  Polystichum lonchitis Lawrence L. Kiefer; 1963-8-9 732 Siskiyou Klamath Mts., Castle Lake, bluff at the S end of the lake 2133 Comment
  OBI1444  Polystichum lonchitis Lawrence L. Kiefer 1963-8-9 732 Siskiyou Castle Lake, south end 2134 Comment
  JEPS83822  Polystichum scopulinum Wayne Roderick July 1976 Siskiyou vicinity of Cook and Green Pass (near Lily Pad Lake); Siskiyou Mts. 1828 Comment
  HSC19175  Populus tremuloides J. O. Sawyer 1968-7-23 603 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  UC618792  Populus tremuloides W. Bridge Cooke 1938-8-25 11586 Siskiyou e of Widow Spring Mount Shasta (along Pilgrim Creek); , , e of Widow Spring Comment
  UCD77957  Populus trichocarpa Robert E. Preston 2002-6-21 1876 Siskiyou Klamath National Forest, Rainbow Mountain, S slope, N of Trout Creek 1765 Comment
  UC1265462  Potamogeton berchtoldii Frederick W. Oettinger 1969-8-18 1417 Siskiyou at nw shore of Horse Range Lake (High Lake Basins in Vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1821 Comment
  HSC61831  Potentilla breweri Ruby Van Deventer 1961-6-14 Siskiyou Poker Flat 1585 Comment
  HSC90541  Potentilla breweri Jennifer Whipple 1976-7-8 1376 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  CAS-BOT-BC142033  Potentilla drummondii John Thomas Howell 1939-8-2 14906 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  RSA237623  Potentilla drummondii Frederick W. Oettinger 1968-9-7 769 Siskiyou Ridge SE of Tobacco Lake Meadow. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  RSA237624  Potentilla drummondii Frederick W. Oettinger 1969-7-13 1001 Siskiyou North of upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  HSC34154  Potentilla flabellifolia J. O. Sawyer 1969-7-18 1391 Siskiyou Head of S Russian Creek 1829 Comment
  HSC96434  Potentilla flabellifolia Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 481 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  RSA237236  Potentilla flabellifolia Frederick W. Oettinger 1967-7-8 159 Siskiyou Wet stream bank, just below Big Blue Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA507455  Potentilla glandulosa S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  RSA68938  Potentilla glandulosa subsp. ashlandica A. E. Culbertson 1943-7-17 20 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall, 14 miles s.w. of Mt Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  RSA134220  Potentilla glandulosa var. nevadensis Peter H. Raven 1956-9-4 10401 Siskiyou S side of Mt. Eddy 2561 Comment
  CHSC88116  Potentilla gracilis var. fastigiata Jenny Marr 1993-7-1 126 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC454983  Potentilla gracilis var. fastigiata I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake, near Sisson 1828 Comment
  CAS-BOT-BC540559  Potentilla gracilis var. fastigiata A. A. Heller 1918-7-16 13030 Siskiyou Mt. Eddy west of Sisson 2651 Comment
  CAS-BOT-BC540573  Potentilla gracilis var. fastigiata Alice Eastwood 1921-7-29 10985 Siskiyou Pumice Mt. Comment
  LA208101  Potentilla gracilis var. fastigiata W. B. C.; 1939-7-7 13591 Siskiyou Mount Shasta, Bear Springs 1523 Comment
  POM250747  Potentilla gracilis var. fastigiata W. Bridge Cooke 1938-7-29 11395 Siskiyou Bear Springs, Mount Shasta 1524 Comment
  UC1733684  Potentilla millefolia Kay H. Beach, Frank Gould 1940-5-16 644 Siskiyou about 24 mi N of Weed (on the road to Klamath Falls) Comment
  UC1368673  Potentilla recta W. B. and V. G. Cooke 1968-7-1 39229 Siskiyou in cleared area in highway equipment turnout Jct. US 97 and Andesite Road 1524 Comment
  HSC69092  Prunella vulgaris Maralyn A. Renner 1980-8-4 2225 Siskiyou Flint Valley 1390 Comment
  CAS-BOT-BC158202  Prunus emarginata A. A. Heller 1905-6-1 7929 Siskiyou Between Dunsmuir and Upper Soda Spring Comment
  CAS-BOT-BC158232  Prunus emarginata Doris K. Kildale 1928-8-18 6447 Siskiyou Head of North Fork of Salmon River at Finley's Upper Camp Comment
  HSC19188  Prunus emarginata J. O. Sawyer 1968-6-18 216 Siskiyou Headwaters of Blake's Fork of S Russian Creek. 1738 Comment
  RSA48221  Prunus emarginata Roxana S. Ferris 1948-6-12 11776 Siskiyou About 5.5 miles from Etna on forks of Salmon road. Comment
  SEINET7347118  Prunus emarginata E. K. Balls 1950-5-15 14701 Siskiyou Lava Beds National Monument, below Indian Well Public Camp 1402 Comment
  CAS-BOT-BC151231  Prunus virginiana var. demissa L. E. Smith 1913-9-14 s.n. Siskiyou Mt. Eddy Comment
  HSC24682  Prunus virginiana var. demissa J. O. Sawyer 1969-8-1 1662 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  POM88405  Prunus virginiana var. demissa Geo. D. Butler 1910-7-24 1795 Siskiyou [Greka or Silka]? Creek Comment
  RSA184747  Prunus virginiana var. demissa Gilbert Muth 1966-7-17 411 Siskiyou Marble S of camp. Marble Mtns. 1793 Comment
  UC1128441  Prunus virginiana var. demissa M. H. Mitchell 1936-5-19 Siskiyou 1 1/4 mi W of Coldwell Butte 1371 Comment
  UCR152042  Prunus virginiana var. demissa P. V. Wells 1967-1-7 s.n. Siskiyou Mt. Shasta, At Mcbryde Spring 1524 Comment
  SBBG25857  Pseudognaphalium thermale D. Myrick 1966-8-12 1547 Siskiyou rd to Carter Ranch, Mtn Meadow Ranch, Big Flat, Trinity Alps 1584 Comment
  CAS-BOT-BC239814  Pseudoroegneria spicata Milo S. Baker 1955-6-26 1383 Siskiyou Shasta Val., bet. Weed and Gazelle 914 Comment
  UCD91508  Pseudoroegneria spicata Beecher Crampton 1969-6-18 8461 Siskiyou 4 miles s.w. Yreka, State Hwy. 3. 975 Comment
  RSA585076  Pseudoroegneria spicata subsp. spicata L. C. Wheeler 1934-6-29 2831 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1067 Comment
  RSA724915  Pseudostellaria jamesiana L. P. Janeway 2006-7-1 8725 Siskiyou Klamath Ranges, Salmon Mountains; Just west of Carter Meadow, north side of South Fork Salmon River. 1579 Comment
  CAS-BOT-BC80174  Pseudotsuga menziesii Doris K. Kildale 1929-4-27 7559 Siskiyou Cecilville Comment
  UC239  Pseudotsuga menziesii var. menziesii T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  JEPS94101  Psilocarphus brevissimus var. brevissimus Vernon H. Oswald and Lowell Ahart 1998-9-8 9603 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi. w. of Mosquito Lake and Whitehorse Flat Reservoir 1112 Comment
  CAS-BOT-BC361903  Psilocarphus tenellus Louis C. Wheeler 1934-6-2 2605 Siskiyou Klamath National Forest. Cherry River, Klamath R. 518 Comment
  CAS-BOT-BC72684  Pteridium aquilinum A. A. Heller 1920-8-11 13502 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1158 Comment
  UC375216  Pterospora andromedea Geo. D. Butler 1908-6-28 21 Siskiyou Quartz Valley Comment
  UCD91860  Puccinellia distans Robert Slayback; O. K. Hoglund 1965-7-1 s.n. Siskiyou 1 mile east of the Lower Klamath National Wildlife Refuge. 70 Comment
  POM215864  Purshia tridentata var. tridentata Louis C. Wheeler 1935-6-13 3571 Siskiyou Mill Creek. Quartz Valley. 945 Comment
  UC775003  Purshia tridentata var. tridentata Carl B. Wolf 1941-7-26 Siskiyou 12 mi ne Weed (on U.S. Hwy 97, at junction with road to Montague, sw end of Little Shasta Valley); Little Shasta Valley 914 Comment
  CAS-BOT-BC147913  Purshia tridentata var. tridentata Ella Dales Cantelow 1940-6-2 4311 Siskiyou W. of Indian Wells Ranger Station Comment
  UC456120  Pycnanthemum californicum I. J. Condit 1911-7-13 Siskiyou Dunsmuir Comment
  UCLA62314  Pycnanthemum californicum W. Bridge Cooke 1940-7-26 15358 Siskiyou meadow at the Black Butte spring Mount Shasta; , Black Butte spring Comment
  RSA0082801  Pyrola aphylla Geo D. Butler 1910-6-17 1575 Siskiyou Humbug Mountain. 1220 Comment
  RSA756945  Pyrola asarifolia R. F. Thorne 1969-8-2 63338 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  HSC61507  Pyrola crypta Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail 1524 Comment
  HSC19196  Pyrola picta J. O. Sawyer 1968-7-10 462 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  UC1190130  Pyrola picta Ira L. Wiggins 1955-7-23 13463 A Siskiyou ridge W of China Creek, S side of S Fork of Salmon River 960 Comment
  UC479140  Pyrola picta Marcus E. Jones 1931-7-17 29062 Siskiyou Shasta City Comment
  UC625499  Pyrola picta Frank W. Gould 1938-6-27 473 Siskiyou 3 mi n of town of Mount Shasta (near highway U.S. 99) 1082 Comment
  UCD117827  Pyrola picta J. M. Tucker 1974-7-28 4314 Siskiyou Adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  CAS-BOT-BC466140  Pyrola picta L. E. Smith 1913-9-14 s.n. Siskiyou Mt. Eddy Comment
  CAS-BOT-BC466149  Pyrola picta H. A. Thomas; J. H. Thomas 1954-7-21 4419 Siskiyou Salmon-Trinity Mts. About 6 mi SE of Cecilville. West side of Rush Creek. 1219 Comment
  CAS-BOT-BC362268  Pyrrocoma carthamoides var. cusickii J. D. Jokerst 1981-8-18 1462 Siskiyou East side of USFS logging road between road and canyon bottom 1249 Comment
  RSA44901  Pyrrocoma racemosa var. pinetorum J. C. Roos 1948-9-1 3954 Siskiyou Near Fort Jones. 854 Comment
  CAS-BOT-BC362390  Pyrrocoma racemosa var. racemosa Geo. D. Butler 1910-8-21 1843 Siskiyou Shasta Valley Comment
  CAS-BOT-BC94651  Quercus garryana Copeland 1903-7-14 3522 Siskiyou Klamathon Comment
  HSC8239  Quercus garryana C. B. Wolf 1927-8-27 1109 Siskiyou Klamath River at Happy Camp. Comment
  HSC74869  Quercus garryana var. breweri J. P. Smith, Jennifer Whipple 1978-7-2 9989 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  RSA237386  Quercus garryana var. breweri Frederick W. Oettinger 1968-8-18 574 Siskiyou Due NNW of Tobacco Lake and west of the west cove of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  RSA639548  Quercus garryana var. breweri Louis C. Wheeler 1952-9-17 6940 Siskiyou [No location information on label.] Comment
  RSA15598  Quercus garryana var. garryana Carl B. Wolf 1927-8-27 1109 Siskiyou Happy Camp, Klamath River. Comment
  UCD46071  Quercus garryana var. garryana Frank C. Vasek 1975-6-29 750629 7A Siskiyou 2.3 miles east of Callahan, Siskiyou County, California. Comment
  CAS-BOT-BC105470  Quercus kelloggii Carl B. Wolf 1927-8-26 1027 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  RSA15793  Quercus kelloggii Carl B. Wolf 1927-8-26 1027 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  UC63979  Quercus kelloggii Kate Stirring 1904-9-25 Siskiyou Etna Mills Comment
  CHSC91794  Quercus sadleriana G. F. Hrusa 2001-6-6 15853 Siskiyou Siskiyou Mountains. Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. Roadside. UTM: 10T, 4649821 N, 0456023 E. 1424 Comment
  HSC67669  Quercus sadleriana John Palmer 1980-7-24 589 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  OBI14235  Quercus sadleriana Reino Alava, Aloha Alava, Rimo Bacigalupi 1958-9-3 2454 Siskiyou At the jctn of the road to Poker Flat and the road from Happy Camp to Takilma 1376 Comment
  RSA12503  Quercus sadleriana Carl B. Wolf 1934-7-4 5933 Siskiyou Horse Creek road to Dry Lake Lookout, Siskiyou Mountains. 13 miles from Horse Creek Bridge on Klamath River. 1372 Comment
  UC637062  Quercus sadleriana Edward Lee 1934-8-13 1067 Siskiyou Happy Camp to Waldo (Oregon) road (watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  UC971916  Quercus sadleriana Herbert L. Mason 1950-7-16 14060 Siskiyou road from Happy Camp, California to Waldo, Oregon Comment
  UCD14455  Quercus sadleriana John M. Tucker 1972-8-8 4246 Siskiyou California, Siskiyou Co.; Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 mi. west-southwest of Marble Valley Guard Station (extreme southeast corner of Section 20, R. 11W., T. 42N); Comment
  UCD14458  Quercus sadleriana G. L. Stebbins 1972-7-3 s.n. Siskiyou California, Siskiyou Co.; 0.5 mi. east of Cook and Green Pass; north of Seiad Valley, T 47N, R 11W, Sect. 9, Seiad Valley Quadrangle; Comment
  UCD47225  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 B Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte- Siskiyou county line, California. Comment
  UCD47253  Quercus sadleriana J. M. Tucker 1963-7-9 3735 Siskiyou Ca. 3/4 mile east of Marble Valley Guard Station, upper Canyon Creek, Marble Mountain Wilderness Area, Siskiyou County, California. 1615 Comment
  SJSU444  Quercus sadleriana A. W. Jacobs 1938-10-16 Siskiyou near summit of ridge c. 4 mi SW of Clear Cr (Pick-Aw-Ish) on Klamath R 1828 Comment
  CAS-BOT-BC104640  Quercus vacciniifolia Marion Ownbey; Fred G. Meyer 1940-7-6 2201 Siskiyou Along Cayenne Ridge, Marble Mountain Comment
  HSC69236  Quercus vacciniifolia Maralyn A. Renner 1980-9-1 2709 Siskiyou S side of Devil's Punchbowl 1829 Comment
  HSC91298  Quercus vacciniifolia Jennifer Whipple 1976-7-14 1473 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  RSA622138  Quercus vacciniifolia J. M. Tucker 1948-8-3 1776 Siskiyou 6.7 miles (by road) below the summit of Happy Camp - Waldo road. Comment
  UCD14014  Quercus vacciniifolia John M. Tucker 1948-8-3 1776 Siskiyou California, Siskiyou Co.; 6.7 mi. (by road) below the summit of Happy Camp - Waldo road; Comment
  CAS-BOT-BC328129  Raillardella pringlei Douglas Barbe 1959-7-11 538 Siskiyou Gumboot Lake, headwaters of the South Fork Sacramento River, 15 miles west of Mount Shasta, Shasta National Forest 1767 Comment
  JEPS55081  Ranunculus alismifolius var. alismifolius Milo S. Baker 1893-8-8 Siskiyou Medicine Lake; near shore Comment
  UC480880  Ranunculus aquatilis var. capillaceus Milo S. Baker 1898-8-1 470 Siskiyou Medicine Lake Comment
  RSA238279  Ranunculus aquatilis var. capillaceus Frederick W. Oettinger 1969-9-5 1683 Siskiyou Salamander Pond near Abbotts Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SBBG2264  Ranunculus orthorhynchus var. orthorhynchus H. and M. Dearing 1939-6-5 3555 c Siskiyou E of McCloud 1066 Comment
  JEPS94856  Rhamnus californica subsp. occidentalis Vernon H. Oswald and Lowell Ahart 1998-8-3 9447 Siskiyou Rock Fence Lake Rd. (USFS 41N18) 0.1 mi ne of its intersection with Kangaroo Lake Rd. (USFS 41N08) (4.9 mi se of Gazelle-Callahan Rd.) 1676 Comment
  UC1409293  Rhamnus purshiana Frederick W. Oettinger 1968-8-23 617 Siskiyou midway down the steep spillway from Diamond Lake to Upper English Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness, English Peak 1920 Comment
  UC54499  Rhamnus purshiana H. M. Hall and E. B. Babcock Jun 1903 4130 Siskiyou Head of McCloud River Sierra Nevada Mountains, Mount Shasta 1524 Comment
  RSA34039  Rhamnus rubra subsp. obtusissima A. A. Heller 1920-8-13 13525 Siskiyou Upton. Comment
  RSA700048  Rhododendron californicum Leo Miller 1938-07 s.n. Siskiyou Siskiyou, Mountains. 915 Comment
  CHSC75708  Rhododendron occidentale Vernon H. Oswald; Lowell Ahart 1999-7-5 9825 Siskiyou Summit of Hwy. 3 on Scott Mtn. southeast of Callaham. 1645 Comment
  JEPS95667  Rhododendron occidentale Vernon H. Oswald and L. Ahart 1999-7-5 9825 Siskiyou Summit of Hwy. 3 on Scott Mtn. southeast of Callahan: T39N R7W Sect. 5, 5400 ft, mixed coniferous forest, serpentine substrate 1645 Comment
  HSC36726  Rhododendron occidentale var. paludosum Brent Whiteley 1975-6-28 81 Siskiyou 915 Comment
  HSC58864  Rhododendron occidentale var. paludosum Marvin Butler 1971-7-16 145 Siskiyou Near El Capitan Lake, close to the town of Cave Junction 1524 Comment
  CHSC27782  Rhus aromatica K. Bridwell 1978-4-14 84 Siskiyou Along Klamath River, ca. 3 mi s of Hornbrook. 670 Comment
  UC455595  Ribes I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1828 Comment
  CAS-BOT-BC94998  Ribes binominatum R. C. Wenk 2005-6-17 173 Siskiyou Trinity Alps, S Fork of the Salmon River, near Big Flat Campground at S end of Big Flat Meadow 1517 Comment
  HSC76993  Ribes binominatum K. T. Stillman 1976-6-25 70 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  CAS-BOT-BC108775  Ribes cereum W. R. Dudley 1899-8-1 s.n. Siskiyou Craggy Peak. Comment
  CAS-BOT-BC108782  Ribes cereum A. A. Heller 1938-7-12 15252 Siskiyou Eight miles north of Weed along U.S. Highway #97. Comment
  UC1540006  Ribes cereum M. Mitchell 1936-5-8 5 Siskiyou 1/2 mi w Incline Cave (close to road); Lava Beds National Monument 1402 Comment
  UCD102130  Ribes cereum Jack Major 1961-7-14 635 Siskiyou Panther Creek, Mount Shasta. 1790 Comment
  CAS-BOT-BC108767  Ribes cereum Ella Dales Cantelow 1938-7-2 2369 Siskiyou 12.5 miles east of Sierra City. Comment
  UCR70820  Ribes cereum var. cereum M. O'Mera 1974-5-27 471 Siskiyou Along road 47N03. 1646 Comment
  NY185916  Ribes glanduliferum A. A. Heller 1905-6-9 8005 Siskiyou Yreka Comment
  CAS-BOT-BC173299  Ribes lacustre Ira L. Wiggins 1955-7-24 13504 Siskiyou Trail crossing China Creek, above S. Fork of Salmon River, south of Mountain View Ranch (7 miles aove Cecilville) 1301 Comment
  UC11567  Ribes lacustre Harley P. Chandler June, 1901 1561 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  UC195273  Ribes lacustre Annie M. Alexander and Louise Kellogg 1911-6-24 184 Siskiyou Jackson Lake 1798 Comment
  HSC32159  Ribes lobbii J. O. Sawyer 1970-6-17 2202 Siskiyou 1768 Comment
  SBBG26908  Ribes lobbii J. T. Howell 1939-8-4 Siskiyou near Spirit Lake, Marble Mtns 1828 Comment
  RSA0021629  Ribes lobbii M. B. Dunkle 1944-7-18 9151 Siskiyou Siskiyou National Forest Comment
  UC11610  Ribes marshallii Harley P. Chandler June 1901 1549 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  CAS-BOT-BC219272  Ribes nevadense John Thomas Howell 1937-7-22 13310 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UC455587  Ribes nevadense I. J. Condit 1911-7-17 Siskiyou Trail R.R. Station to Hotel Shasta Springs Comment
  UC478902  Ribes nevadense Marcus E. Jones, A. M. 1931-7-17 29003 Siskiyou Shasta City (Session's) Comment
  HSC86456  Ribes roezlii D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 2043 Comment
  JEPS82695  Ribes roezlii Wayne Roderick 1984-6-5 Siskiyou ca. 12 air km sw Mt. Shasta city; Castle Lake 1828 Comment
  UC1181812  Ribes roezlii Dorothy Parker 1950-4-23 404 Siskiyou near Etna Creek; Siskiyou Mountains, Salmon Mountain Range 914 Comment
  JEPS49461  Ribes roezlii var. cruentum Geo. D. Butler 1909-4-11 655 Siskiyou Shasta Retreat Comment
  RSA0024596  Ribes roezlii var. cruentum Louis C. Wheeler 1934-6-28 2815 Siskiyou Little Soda Creek, Sterling Mt., Siskiyou Mts. 1067 Comment
  JEPS8478  Ribes sanguineum Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-16 3455 Siskiyou about 1.5 mi below and se of saddle at summit Takilma-Happy Camp road Comment
  CAS-BOT-BC173904  Ribes velutinum Geo. D. Butler 1910-3-13 1128 Siskiyou Klamath Hills Comment
  SEINET182273 Image available Ribes velutinum L. C. Wheeler 1935-5-4 3467 Siskiyou Siskiyou Mountains; Greenhorn Creek 853 Comment
  UC162062 Image available Ribes velutinum A. A. Heller 1905-6-9 8005 Siskiyou Yreka; ; Yreka, Siskiyou Co. Comment
  CAS-BOT-BC168794  Ribes viscosissimum A. M. Vollmer; L. Beane 1951-6-2 55 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway Comment
  HSC29416  Ribes viscosissimum Frederick W. Oettinger 1969-7-9 934 Siskiyou Vicinity of English Peak, Marble Mountain Wilderness Area; NW of Upper English Lake 1921 Comment
  JEPS84057  Ribes viscosissimum L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6351 Siskiyou ca. 1/2 mi se Red Butte (ca. 7 mi nne of Seiad Valley, sw of Cook and Green Pass) 1730 Comment
  UCD102537  Ribes viscosissimum Jack Major; M. Fleschner, R. Pemble 1966-9-4 s.n. Siskiyou East of Marble Mountain, Marble Mountains. 2042 Comment
  UCD78095  Ribes viscosissimum Robert E. Preston 2001-6-23 1622 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W ne 1/4 Section 15 1706 Comment
  CDA25593  Ribes viscosissimum var. hallii J. R. Grisham 1969-8-25 Siskiyou Tom George property, Yreka. 0 Comment
  CAS-BOT-BC362935  Rigiopappus leptocladus Alice Eastwood 1912-7-20 1261 Siskiyou Hornbrook Comment
  CHSC91347  Rigiopappus leptocladus Lowell Ahart; John Dittes 2005-6-9 12045 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  RSA238854  Romanzoffia sitchensis Frederick W. Oettinger 1968-9-1 650 Siskiyou South of Abbott s Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  CAS-BOT-BC147465  Rosa californica Doris K. Kildale 1929-6-25 8371 Siskiyou Klamath River, 6 miles north of Hornbrook Comment
  RSA15595  Rosa eglanteria Carl B. Wolf 1927-8-27 1112 Siskiyou On the Klamath River, Happy Camp. Comment
  POM140328  Rosa gymnocarpa E. B. Copeland 1903-9-5 3874 Siskiyou Foot of Mt Eddy 1220 Comment
  CAS-BOT-BC146759  Rosa gymnocarpa W. R. Dudley 1901-8-25 s.n. Siskiyou Carters Meadow, Salmon Mts. Comment
  RSA96938  Rosa gymnocarpa Percy C. Everett, E. K. Balls 1954-10-11 20267 Siskiyou Castle Lake Forest Service Camp. SW of town of Mt. Shasta. 1555 Comment
  CAS-BOT-BC146808  Rosa nutkana A. A. Heller 1905-6-5 s.n. Siskiyou Between Shasta Retreat and Shasta Springs Comment
  UC1795618  Rosa nutkana subsp. macdougalii Barbara Ertter 2001-6-9 17659 Siskiyou Mt. Shasta City at west base of Mt. Shasta, sedge meadow at SE corner of Lake and Commercial streets [destroyed for development in 2002] 1066 Comment
  UC1871380  Rosa nutkana subsp. macdougalii Barbara Ertter 2006-7-30 18739 a Siskiyou Butte Valley 4 air mi due W of Macdoel, Meiss Lake Road at S entrance to Butte Valley Wildlife Area. 1298 Comment
  CAS-BOT-BC147054  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou Near Fish Hatchery, Mt. Shasta City (Sisson) 1066 Comment
  POM365847  Rosa pisocarpa Louis C. Wheeler 1934-6-27 2800 Siskiyou Cottonwood Creek. Siskiyou Mtns. 884 Comment
  RSA237788  Rosa pisocarpa Frederick W. Oettinger 1969-8-22 1510 Siskiyou Margin of meadow NW side of Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  SEINET11897196  Rosa pisocarpa C. G. Pringle 1882-1 s.n. Siskiyou Pacific slope Comment
  HSC29361  Rubus lasiococcus Frederick W. Oettinger 1968-8-5 415 Siskiyou Marble Mountain Wilderness Area, W end of Charmaine Lake 1921 Comment
  HSC61951  Rubus lasiococcus Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1555 Comment
  HSC96406  Rubus lasiococcus Gordon Leppig, J. Kalt 1996-7-9 363 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UC637072  Rubus lasiococcus Edward Lee 1934-8-13 1079 Siskiyou Happy Camp to Waldo (Oregon) (watershed of West Branch of Indian Creek, Klamath National Forest); Klamath National Forest, West Branch Indian Creek watershed 1463 Comment
  HSC58948  Rubus parviflorus Marvin Butler 1971-7-19 156 Siskiyou Near Marv's Meadow, close to the town of Cave Junction. 1464 Comment
  RSA211483  Rubus parviflorus William J. Ferlatte 1966-8-18 421 Siskiyou Along the S fork of the Salmon River between the campground and Carter's 1524 Comment
  CAS-BOT-BC157158  Rubus ursinus Louis C. Wheeler 1934-6-29 2824 Siskiyou Klamath National Forest. Soda Creek 1280 Comment
  CAS-BOT-BC363169  Rudbeckia californica L. E. Smith 1913-7-4 s.n. Siskiyou Railroad to Castle Lake Comment
  JEPS87795  Rudbeckia glaucescens Vernon H. Oswald and Lowell Ahart 1994-8-1 6418 Siskiyou 9 mi. s.w. of dam at Lake Siskiyou (Forest Rd. 26 paralleling S. Fork Sacramento R., 0.3 mi. e. of Forest Rd. 40N43) 1438 Comment
  HSC31131  Rudbeckia occidentalis J. O. Sawyer 1971-8-20 2459 Siskiyou Near Buckhorn Spring on Big Ridge trail 1982 Comment
  CAS-BOT-BC422220  Rumex acetosella Gilbert Muth 1966-7-18 412 Siskiyou Marble Gap Trail, above Marble Valley, Marble Mts. 1828 Comment
  RSA237968  Rumex acetosella Frederick W. Oettinger 1968-8-10 466 Siskiyou Trail side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  CHSC71495  Rumex crispus Vernon H. Oswald; Lowell Ahart 1998-7-21 9345 Siskiyou Northeast of Weed and east of Grass Lake on the south side of Tennant Rd. 0.2 mi southeast of Old State Hwy. to Bray and on the east side of the intermittent stream draining Dry Lake. 1402 Comment
  CAS-BOT-BC433404  Rumex crispus H. E. Brown 1897-6-1 379 Siskiyou Near Sisson 1082 Comment
  JEPS39939  Rumex occidentalis W. L. Jepson 1914-8-13 5799 Siskiyou Marshes at Sisson Sisson 1097 Comment
  RSA611388  Sagina apetala L. C. Wheeler 1934-6-2 2606 Siskiyou Klamath River at Cherry Flat; Siskiyou Mts. 518 Comment
  UCD77983  Sagina procumbens Robert E. Preston 2001-7-20 1679 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1700 Comment
  UC796609  Sagina saginoides Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11745 Siskiyou French Creek Logging Rd. w. of Callahan 1066 Comment
  CAS-BOT-BC103369  Salix bonplandiana W. R. Dudley 1899-8-25 s.n. Siskiyou Gazelle Comment
  POM107341  Salix boothii Geo. D. Butler 1908-8-7 152 Siskiyou Lake at head of W fork of Wooley Creek. 1829 Comment
  HSC22196  Salix eastwoodiae J. O. Sawyer 1969-8-4 1916 Siskiyou Headwaters of S Sugar Creek. 2043 Comment
  HSC78193  Salix eastwoodiae L. P. Janeway 1983-7-10 409 Siskiyou Poker Flat 1524 Comment
  RSA184756  Salix eastwoodiae Gilbert Muth 1966-7-8 377 Siskiyou Marble Valley. Marble Mtns. 1793 Comment
  CAS-BOT-BC107654  Salix jepsonii Alice Eastwood 1921-7-24 10716 Siskiyou Castle Lake Comment
  CAS-BOT-BC125471  Salix lasiandra var. lasiandra Doris K. Kildale 1928-7-3 5430 Siskiyou Forks of Salmon, Salmon River Comment
  CAS-BOT-BC125477  Salix lasiandra var. lasiandra L. E. Smith 1914-6-24 720 Siskiyou Sisson Comment
  SD37402  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-19 429 Siskiyou North base of Mount Eddy, about 10 km northwest of Shasta City, in meadow near road and creek east of Metcalf ranch house 1200 Comment
  UC482232  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 410 Siskiyou about 16 km nw Shasta City (ne side of mt., edge of stream above Metcalf ranch house); Mount Eddy 1425 Comment
  UC482340  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-22 476 Siskiyou Gibson flag station Pit River (125 km n of Red Bluff) 450 Comment
  POM219905  Salix lemmonii H. P. Bracelin 1931-6-21 467 Siskiyou N side of Mount Eddy. About 21 km NW of Shasta City. 180 m below Dobkin's Lake. 1770 Comment
  SBBG57824  Salix lucida subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 424 Siskiyou NE side of Mt Eddy, ca. 16 km NW of Shasta City, above Metcalf ranch house 1350 Comment
  UC481731  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou near hwy. at Flume Creek Camp (Flume Creek - tributuary of Pit River); Flume Creek 555 Comment
  CAS-BOT-BC126149  Salix scouleriana Wm. F. Herrin 1918-5-15 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC126161  Salix scouleriana L. E. Smith 1915-6-1 s.n. Siskiyou Sisson 1524 Comment
  CAS-BOT-BC126167  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 446 Siskiyou East side of Mount Eddy, about 17 km. northwest of Shasta City; in Wagon Creek Canyon, about 1 km. up from Metcalf ranch house 1170 Comment
  SJSU169  Salix scouleriana Mrs. H. P. Bracelin 1931-6-19 435 Siskiyou E of Metcalf ranch house, N base of Mt Eddy c. 10 km NW of Shasta City 1079 Comment
  UC1135100  Salix scouleriana H. A. Jensen 1933-10-25 366 Siskiyou s. of Signal Butte (Mt. Shasta-McCloud Rd.); Shasta Nat'l Forest, Dunsmuir Quad. Comment
  CAS-BOT-BC128970  Salix sitchensis John Thomas Howell 1939-8-5 15079 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  JEPS38528  Salix sitchensis Geo. D. Butler 1908-8-6 149 Siskiyou Independence Creek Whiskey Camp 1676 Comment
  CAS-BOT-BC220806  Salvia dorrii var. dorrii Elmer I. Applegate 1932-6-13 7242 Siskiyou Lava Beds National Monument. Captain Jack's Stronghold, north of the monument area, near old shoreline of Tule Lake Comment
  RSA31143  Salvia sonomensis A. A. Heller 1905-6-16 s.n. Siskiyou Near Sisson Comment
  RSA105379  Sambucus caerulea G. D. Barbe 1955-7-5 96 Siskiyou 5.7 miles south of Etna on French Creek Road 884 Comment
  RSA12602  Sambucus caerulea C. B. Wolf 1934-7-6 5984 Siskiyou 1/4 mile east of Mt. Shasta City, southwest slope of Mt. Shasta 1098 Comment
  SEINET3154867  Sambucus canadensis G. D. Butler 1910-5-29 1425 Siskiyou Dry thicket near Yreka Comment
  SEINET11918953  Sanguisorba annua H. M. Hall, Babcock, E. B. 1903-1 4046 Siskiyou Mount Shasta, Sierra Nevada Mountains, near Sisson 1036 Comment
  JEPS25820  Sanicula graveolens Geo. D. Butler 1908-8-4 54 Siskiyou Head of Shackleford Creek Shackleford Creek 1676 Comment
  UC1034053  Sanicula graveolens W. Bridge Cooke 1941-7-18 16083 Siskiyou below Wagon Camp (near the Bear Springs-Wagon Camp Road, Mount Shasta); Mount Shasta 1706 Comment
  UC1222752  Sanicula graveolens Joseph P. Tracy 1951-6-16 19481 Siskiyou at crossing of Takilma-Happy Camp Road (Summit of the Siskiyous); Summit of Siskiyous Comment
  UCR37841  Sanicula graveolens L. P. Janeway 1983-8-6 493 Siskiyou Poker Flat. W part of lower portion of meadow 1529 Comment
  UC1714597  Sanicula tuberosa W. Bridge Cooke 1940-7-5 15246 Siskiyou below Wagon Camp (Mount Shasta, along Wagon Camp Road); Mount Shasta, Wagon Camp Road 1737 Comment
  HSC4153  Saponaria officinalis L. C. Wheeler 1934-9-16 3267 Siskiyou Mt. Diablo Meridian, Walker, Klamath River. 518 Comment
  HSC68018  Saponaria officinalis J. P. Smith, Steve Selva 1970-7-16 4404 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  CDA23527  Sarcobatus vermiculatus F. D. Horn 1977-10-4 Siskiyou Along Ager-Beswick Road at Soda Springs, 16 airline kilometers east of Hornbrook. 0 Comment
  UCR37585  Saxifraga ferruginea var. vreelandii L. P. Janeway 1983-9-11 653 Siskiyou Poker Flat 1524 Comment
  RSA183690  Saxifraga odontoloma Gilbert Muth 1965-8-17 308 Siskiyou Lower creek on trail to Black Mountain, Marble Mts. Comment
  CDA25443  Saxifraga oregana T. C. Fuller 1966-5-26 14716 Siskiyou Between road and railroad tracks, north end of Mt. Shasta City. 0 Comment
  RSA261464  Saxifraga oregana J. M. Tucker 1974-7-26 4292 Siskiyou Let Er Buck Meadows, ca. 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1433 Comment
  HSC19459  Saxifragopsis fragarioides J. O. Sawyer 1969-7-24 1458 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  POM298424  Saxifragopsis fragarioides Lester Rowntree 1937-7-21 s.n. Siskiyou Caribou Lakes. Comment
  UCD126471  Schedonorus arundinaceus P. B. Kennedy 1923-8-29 s.n. Siskiyou Mt. Shasta City. By Camp Cold Water, Sisson. Comment
  RSA602813  Schedonorus pratensis L. C. Wheeler 1935-6-2 3545 Siskiyou Shasta River, Siskiyou Mountains. 732 Comment
  SEINET3991640  Schoenolirion Unknown 1941-6-20 Siskiyou Between Weed and zreka. Comment
  HSC39100  Schoenoplectus tabernaemontani D. H. Norris 1970-5-23 12251 Siskiyou Along Klamath River at Ishi Pishi Bridge near Somes Bar Comment
  JEPS117472  Scirpus americanus Lowell Ahart, John Dittes 2010-7-30 16968 Siskiyou About 10 yards south of the Shasta River, about 50 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  HSC82377  Scirpus congdonii Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4530 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  CHSC62563  Scutellaria antirrhinoides L. P. Janeway 1993-8-30 4571 Siskiyou Along Gumboot Creek just below Gumboot Lake. 1844 Comment
  UCD69139  Scutellaria antirrhinoides D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-13 s.n. Siskiyou Callahan-Cecilville. Cecilville Road. Klamath National Forest. 1130 Comment
  UC1951260  Scutellaria antirrhinoides Robert F. Thorne 1969-8-23 63351 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Trail to upper English Lake along Salmon River. Comment
  UC1523370  Scutellaria nana J. G. Lemmon 1889-6-26 Siskiyou Edgewood Comment
  UC618653  Scutellaria nana W. Bridge Cooke 1938-8-23 11569 Siskiyou n slope of Shastina; Mount Shasta, Shastina 2438 Comment
  CAS-BOT-BC240100  Secale cereale W. B. Cooke; V. G. Cooke; Bob Frenkel 1963-7-12 34330 Siskiyou Along highway, Memorial Highway, Mt. Shasta Comment
  UCR278356  Sedum kiersteadiae Peter F. Zika 2013-6-28 26289 Siskiyou Klamath Range, Route 26, 0.6 air km west-northwest of Gumboot Lake 1960 Comment
  CHSC118095  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25640 Siskiyou West side of FS Road 1040, 2.9 road miles above ju ... Field redacted by CHSC, contact the data manager for more information 675 Comment
  UCR246362  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25640 Siskiyou Klamath Range (KR), W side of Forest Service Road 1040, 2.9 road miles above junction with FS Road 10; above Middle Fork Applegate River, 1 air mile NW of Abney Butte, Siskiyou Mountains 675 Comment
  LA204812  Sedum obtusatum Wm. Bridge Cooke; 1939-8-10 13849 Siskiyou Mount Shasta, Mud Creek near the botton of the Canyon 1676 Comment
  CAS-BOT-BC64641  Sedum obtusatum subsp. boreale John Thomas Howell 1939-8-8 15141 Siskiyou Between Marble Valley and Sky High Valley, Marble Mts. Comment
  RSA0035469  Sedum oregonense Peter F. Zika 2011-7-19 25647 Siskiyou Near Pacific Crest Trail, 1 air mile WNW of Copper Butte, Siskiyou Mountains, Klamath Range (KR). 1610 Comment
  RSA603160  Sedum oregonense L. C. Wheeler 1934-6-29 2832 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1067 Comment
  CAS-BOT-BC59128  Sedum spathulifolium John Thomas Howell 1939-8-8 15142 Siskiyou Marble Mountains, between Marble Valley and Sky High Valley. Comment
  CAS-BOT-BC59092  Sedum spathulifolium Mrs. Gay 1893-6-1 s.n. Siskiyou McCloud River Comment
  CAS-BOT-BC363422  Senecio aronicoides Wm. Bridge Cooke 1938-6-17 11013 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  UC711811  Senecio aronicoides Roxana S. Ferris and Laura Lorraine 1941-8-11 10505 Siskiyou slopes above Medicine Lake; Shasta National Forest Comment
  JEPS109257  Senecio fremontii var. fremontii D. W. Taylor 2002-7-29 18284 Siskiyou South China Mountain; cirque at head of the W fork of Huston Creek (Huston Creek Divide on USFS trail sign at summit) ca 0.4 miles E of summit. Comment
  JEPS37593  Senecio hydrophiloides Geo. D. Butler 1909-6-22 956 Siskiyou Goosenest Mt. Comment
  UC163920  Senecio hydrophiloides Geo. D. Butler 1910-6-19 1581 Siskiyou Goosenest foothills Goosenest 1524 Comment
  CAS-BOT-BC363940  Senecio integerrimus var. exaltatus Geo. D. Butler 1909-4-28 701 Siskiyou McAdams Creek Comment
  CHSC71286  Senecio integerrimus var. exaltatus Vernon H. Oswald; Lowell Ahart 1998-6-11 9216 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  UC166169  Senecio integerrimus var. exaltatus Geo. D. Butler 1910-5-10 1332 Siskiyou Goosenest foothills Goosenest 1524 Comment
  CAS-BOT-BC364446  Senecio triangularis Doris K. Kildale 1929-8-23 8803 Siskiyou Youngs Valley on trail to Preston Peak Comment
  HSC81849  Senecio triangularis Thomas W. Nelson, Jane P. Nelson 1980-7-20 6180 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  JEPS37600  Senecio triangularis Geo. D. Butler 1908-8-9 340 Siskiyou Marble Valley 1676 Comment
  UC131776  Senecio triangularis Dr. E. B. Copeland 1903-8-19 3811 Siskiyou Mt. Eddy 1463 Comment
  HSC76958  Senecio triangularis K. T. Stillman 1976-9-9 472 Siskiyou Marble Mtn. Wilderness Area, N, NE and E side of Black Mtn. Comment
  RSA473096  Senecio triangularis L. C. Wheeler 1934-8-9 3084 Siskiyou Siskiyou Mountains: Head of Jaynes Canyon. 1981 Comment
  HSC19439  Sibbaldia procumbens J. O. Sawyer 1969-8-3 1730 Siskiyou W of Little Duck Lake 2195 Comment
  HSC75  Sibbaldia procumbens William J. Ferlatte 1967-8-20 1050 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  JEPS57210  Sibbaldia procumbens L. R. Heckard 1967-8-14 1729 Siskiyou above Horse Camp (on sw flank of Mt. Shasta); Mt. Shasta 2560 Comment
  CAS-BOT-BC213141  Sidalcea Doris K. Kildale 1928-7-25 5878 Siskiyou Klamath River near Hamburg 457 Comment
  UC642536  Sidalcea oregana subsp. spicata W. Bridge Cooke 1939-7-7 13589 Siskiyou established at Bear Springs Mount Shasta, Bear Springs Comment
  JEPS84224  Silene bernardina L. R. Heckard with J. Hickman et al. 1986-7-17 6499 Siskiyou ca 14.5 mi from Hwy 96 Walker (near Dry Lake, Oak Knoll Ranger Station road to Condrey Mt.); near Dry Lake, road to Condrey Mt. 2000 Comment
  UC1096831  Silene campanulata subsp. glandulosa Milo S. Baker 1957-6-16 13151 Siskiyou Trip to Scott Mts. from Turn off near Callahan; North Coast Ranges, trip to Scott Mts. Comment
  UCD98558  Silene campanulata subsp. glandulosa Joseph M. DiTomaso 1975-7-27 302 Siskiyou Yellow Rose Mine, Trinity Alps. 2011 Comment
  HSC23683  Silene campanulata subsp. greenei J. O. Sawyer 1971-7-16 2431 Siskiyou Slope NE of Deep Lake 2165 Comment
  HSC43041  Silene campanulata subsp. greenei J. O. Sawyer, Ken Stillman 1976-7-2 2814 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  HSC62001  Silene campanulata subsp. greenei Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  RSA120891  Silene campanulata subsp. greenei Milo S. Baker 1957-6-16 13157 Siskiyou Trip to Scott Mt. after turn off near Callahan. Comment
  UC1540254  Silene douglasii Dean W. Taylor 1987-6-26 9063 Siskiyou 2 mi se from Medicine Lake (moist meadow margin near head of easternmost spring); Paynes Springs, se from Medicine Lake 1996 Comment
  RSA211453  Silene douglasii William J. Ferlatte 1967-8-21 1069 Siskiyou Sawtooth Ridge between Caribou Basin and Little South Fork Lake. 2287 Comment
  HSC92348  Silene douglasii var. douglasii Jennifer Whipple 1976-7-24 1545 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2226 Comment
  SBBG30596  Silene douglasii var. douglasii D. Myrick 1968-6-29 2059 Siskiyou Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  CAS-BOT-BC388960  Silene grayi John Thomas Howell 1937-7-26 13534 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC61456  Silene grayi Ruby Van Deventer 1938-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  UCD98593  Silene grayi M. A. Showers 1981-8-8 2017 mas Siskiyou between Shastina and Mt. Shasta at head of Cascade Gulch. 2804 Comment
  CAS-BOT-BC389426  Silene lemmonii Wm. Bridge Cooke 1938-7-1 11126 Siskiyou Mount Shasta. Near Bear Springs Comment
  HSC57648  Silene lemmonii Marvin Butler 1971-8-11 276 Siskiyou Near El Capitan Lake, close to town of Cave Junction 1769 Comment
  UC1185943  Silene lemmonii L. E. Detling 1950-6-9 6601 Siskiyou Hwy 99 Black Butte Summit (Hwy 99) (Black Butte Summit) 1188 Comment
  RSA610005  Silene menziesii subsp. menziesii L. C. Wheeler 1935-6-27 3593 .5 Siskiyou Yreka Creek; Siskiyou Mts. 884 Comment
  CHSC216  Silene vulgaris J. Wakeman 1963-6-10 Siskiyou Along road between Ft. Jones and Etna. Comment
  RSA275295  Silene vulgaris J. O. Sawyer, E. Cope 1977-6-18 2902 Siskiyou Rock along clear Creek Trail below Ten miles Creek 457 Comment
  HSC64807  Sisymbrium altissimum J. P. Smith 1976-5-21 8776 Siskiyou Klamath National Forest, FS Rd. 40N08, 12.3 mi. from its junction with Hwy. 3 1220 Comment
  RSA238754  Sisyrinchium bellum Frederick W. Oettinger 1969-8-1 1125 Siskiyou Wiregrass Meadow below English Lake, Elnglish Lake Basin. The Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area 1677 Comment
  CHSC116262  Sisyrinchium elmeri Barbara L. Wilson; Nick Otting 2014-6-16 18103 Siskiyou Spur off Highway 26, uphill of Gumboot Lake. 1819 Comment
  HSC44592  Sisyrinchium idahoense var. idahoense Laura Witherspoon 1977-7-12 Siskiyou Flint Valley 1341 Comment
  JEPS120258  Smilax californica Julie Kierstead Nelson with Rhonda Posey, Mary Ellen Colberg 2011-7-12 2011 -41 Siskiyou Eastern Klamath Mountains, The Eddys. County Road 26, south side of Siskiyou lake, ca. 3 miles SW of Mt. Shasta City Comment
  RSA715956  Solanum dulcamara L. Ahart, John Dittes 2005-6-10 12078 Siskiyou On the N side of the Shasta River, about 60 yards NW of the pump house along the Shasta River, about 1.9 miles (air) south of Hwy 99/97 Cutoff, about 6 miles (air) ESE of Grenada. 777 Comment
  NY821291  Solanum physalifolium A. A. Heller 1915-8-24 12208 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1189 Comment
  UC1560414  Solanum umbelliferum E. Joyal and D. Mehlman 1988-6-25 1272 Siskiyou Happy Camp-Takilma road at turn off to Bolan Lake 1524 Comment
  SEINET10614387  Solidago David B. Dunn 1971-8-15 Dunn 18144 Siskiyou 1/2 mi. east of McCloud Ranger Station on Hwy. 89. Comment
  RSA12584  Solidago californica C. B. Wolf 1934-7-6 6002 Siskiyou 4.7 miles from Mt. Shasta City on road to Wagon Camp. Southwest slope of Mt. Shasta. 1220 Comment
  HSC46879  Solidago elongata William J. Ferlatte 1976-9-22 1863 Siskiyou Above Yellow Rose Mine Trail on W side of Grouse Ridge ca. 1 mi. from Big Flat 1770 Comment
  JEPS32420  Solidago elongata Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson region of the Upper Sacramento, Sisson Comment
  UC1045299  Solidago elongata W. Bridge Cooke 1940-7-5 15282 Siskiyou along a creek Wagon Camp meadows (Mount Shasta); Mount Shasta Comment
  UC185524  Solidago elongata Copeland 1903-8-12 3823 Siskiyou Sisson Comment
  UC618666  Solidago elongata W. Bridge Cooke 1938-8-19 11510 Siskiyou Howard 1219 Comment
  CHSC114087  Solidago multiradiata Danielle Roach 2011-8-25 Siskiyou Middle Fork Sacramento River headwaters, east slope of the Eddys. 1947 Comment
  CHSC34498  Solidago multiradiata J. D. Jokerst 1981-9-8 1461 Siskiyou Along road side. E of road. 1249 Comment
  UC609352  Solidago multiradiata Eleanor Burks Hart 1938-8-16 947 Siskiyou edge Lower Wright Lake 2072 Comment
  OBI55541  Solidago velutina subsp. californica David J. Keil, Kathleen Keil 1992-7-24 23566 Siskiyou E of McCloud along hwy 89, 22.6 mi W of Shasta County line Comment
  CDA7673  Sonchus arvensis subsp. uliginosus T. C. Fuller 1963-8-27 11162 Siskiyou South side of Dorris-Tulelake Road where the roadbed forms the north shore of Lower Klamath Lake, Lower Klamath Lake Wildlife Refuge, ca. 12 miles west of Hatfield. 0 Comment
  HSC18905  Sorbus californica J. O. Sawyer 1968-7-23 590 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  RSA237824  Sorbus californica Frederick W. Oettinger 1967-7-20 180 Siskiyou Outlet stream from Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  RSA237451  Sorbus scopulina var. cascadensis Frederick W. Oettinger 1969-9-4 1665 Siskiyou S end of Tobacco Lake Basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1951 Comment
  UC163746  Sorbus scopulina var. scopulina Geo. D. Butler 1910-7-8 1681 Siskiyou Shackleford Creek Comment
  HSC65347  Sorbus sitchensis var. grayi Rich White 1978-7-3 207 Siskiyou Saddle in Spur Ridge between Dillon Trail and 5759 1662 Comment
  CAS-BOT-BC421470  Sorbus sitchensis var. sitchensis John Thomas Howell 1937-7-26 13519 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC18908  Sorbus sitchensis var. sitchensis J. O. Sawyer 1968-7-22 530 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  UC106124  Sphenosciadium capitellatum unknown Siskiyou Mt. Shasta Comment
  UC136434  Spiraea douglasii Dr. E. B. Copeland 1903-8-12 3836 Siskiyou Sisson 1066 Comment
  UC195237  Spiraea douglasii Annie M. Alexander and Louise Kellogg 1911-7-29 301 Siskiyou Rush Creek 1950 Comment
  UCD21462  Spiraea douglasii Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1202 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along shores of Gray Rock Lake. 1800 Comment
  RSA237629  Spiranthes Frederick W. Oettinger 1969-8-12 1343 Siskiyou Abbotts Lower Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1220 Comment
  JEPS95522  Spiranthes romanzoffiana Vernon H. Oswald 1994-8-10 6461 Siskiyou T40N R2E SW1/4 NW1/4 Sec. 18, 4460 ft, Yellow Pine Forest. FS 40N39 at Stillwater Meadows on Bartle Creek, ca. 0.5 mi W of Harris Spring Rd. (FS15), ca. 4 mi (air) NNE of Bartle 1359 Comment
  HSC2401  Stachys rigida William J. Ferlatte 1966-8-18 414 Siskiyou Along the South Fork of the Salmon River between the campground and Carter's 1524 Comment
  HSC67726  Stachys rigida John Palmer 1980-8-12 688 Siskiyou SE of Ward's Gap. 1189 Comment
  HSC69395  Stachys rigida Maralyn A. Renner 1980-8-8 2458 Siskiyou Rattlesnake Meadow 1646 Comment
  CAS-BOT-BC202882  Staphylea bolanderi C. H. M. 1919-11-10 s.n. Siskiyou Baird, McCloud River Comment
  POM101775  Stellaria nitens Geo. D. Butler 1910-4-9 1158 Siskiyou Around Yreka. Comment
  CAS-BOT-BC516471  Stenanthium occidentale Annie M. Alexander; Louise Kellogg 1949-7-24 5857 Siskiyou Paradise Lake, Marble Mountains 2072 Comment
  UC618866  Stephanomeria lactucina unknown 1938-7-29 11389 Siskiyou Howard Mount Shasta Comment
  RSA237481  Stephanomeria lactucina Frederick W. Oettinger 1969-8-18 1438 Siskiyou On English Lake trail, below Willow Spring. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1677 Comment
  CAS-BOT-BC375666  Stephanomeria paniculata Louis C. Wheeler 1934-7-17 2912 Siskiyou Cottonwood Creek, Siskiyou Mts. 1036 Comment
  UC830517  Stephanomeria paniculata Alice Eastwood 1912-9-4 2096 Siskiyou Sisson Comment
  HSC19242  Stipa occidentalis var. californica J. O. Sawyer 1969-7-19 1427 Siskiyou SW facing slope above Deacon Lee Trail 2180 Comment
  JEPS95631  Streptanthus barbatus Vernon H. Oswald and L. Ahart 1994-8-1 6438 Siskiyou T40N R6W SE1/4 SW1/4 Sec. 11, 6600 ft, Red Fir Forest. Forest Rd. 17 at the upper trailhead to Deadfall Lakes, ca. 2.5 mi (air) WNW of Mt. Eddy 2011 Comment
  CAS-BOT-BC87863  Streptanthus tortuosus Carl B. Wolf 1934-7-6 6022 Siskiyou Southwest slope of Mount Shasta. 0.5 mile south of trail to Horse Camp. 1524 Comment
  CAS-BOT-BC87959  Streptanthus tortuosus Reed Rollins 1938-8-21 11555 Siskiyou Mount Shasta. Around the various water supply springs above Horse Camp and around Horse Camp fountain overflow. 2438 Comment
  CAS-BOT-BC87860  Streptanthus tortuosus Gilbert Muth 1965-8-5 s.n. Siskiyou On trail to Black Mountain. Comment
  CHSC71568  Streptanthus tortuosus var. orbiculatus Vernon H. Oswald; Lowell Ahart 1998-8-3 9425 Siskiyou Near the Pacific Crest Trail in the Scott Mtns. west of Kangaroo Lake. 1981 Comment
  HSC792  Streptopus amplexifolius William J. Ferlatte 1967-7-9 690 Siskiyou Kidd Creek Trail 1677 Comment
  CAS-BOT-BC516428  Streptopus amplexifolius John Thomas Howell; Gordon H. True 1972-6-8 48859 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  JEPS62164  Streptopus amplexifolius var. americanus Geo. D. Butler 1908-8-8 97 Siskiyou Marble Valley camp Marble Valley 1676 Comment
  HSC25  Suksdorfia ranunculifolia William J. Ferlatte 1966-6-22 70 Siskiyou Josephine Lake Basin 1677 Comment
  HSC61794  Swertia albicaulis var. nitida Ruby Van Deventer 16 Jul [year missing] Siskiyou Poker Flat 1585 Comment
  RSA498175  Symphoricarpos Chadwick, Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  HSC4003  Symphoricarpos mollis C. B. Wolf 1927-8-27 1113 Siskiyou Klamath River at Happy Camp. Comment
  HSC42921  Symphoricarpos mollis Ken Stillman 1976-8-31 464 Siskiyou Along the Klamath River at Williams Point. 366 Comment
  HSC46797  Symphoricarpos mollis William J. Ferlatte 1976-9-22 1864 Siskiyou Yellow Rose Mine trail. 1615 Comment
  UC164440  Symphoricarpos mollis Geo. D. Butler 1910-8-7 1818 Siskiyou Humbug Mountain 1219 Comment
  HSC4014  Symphoricarpos rotundifolius var. rotundifolius R. C. Wunner 1965-8-21 468 Siskiyou California Lava Beds National Monument, 1/4 mile from Cinder Pit on Caldwell Butte. 1402 Comment
  HSC40421  Symphyotrichum ascendens J. O. Sawyer 1973-7-16 2539 Siskiyou Wooley Creek at junction with Bridge Creek. Comment
  HSC5077  Symphyotrichum bracteolatum Geo. D. Butler 1910-8-13 1828 Siskiyou Quartz Valley Comment
  CAS-BOT-BC99036  Symphyotrichum cusickii John Thomas Howell 1939-8-7 15134 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  CAS-BOT-BC97945  Symphyotrichum frondosum Grant 1902-9-15 5235 Siskiyou Shasta Spr. 762 Comment
  POM205586  Taeniatherum caput-medusae E. B. Copeland 1903-7-5 3493 Siskiyou Klamathon. Comment
  POM359939  Taeniatherum caput-medusae E. E. Stanford 1930-6-16 1602 Siskiyou Roadsides and open fields near Hornbrook Comment
  HSC67940  Taraxacum erythrospermum J. P. Smith 1973-5-5 6489 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC33992  Taraxacum officinale J. P. Smith 1974-5-25 7476 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  HSC6261  Taraxacum officinale D. M. Thomson 1965-6-19 96 Siskiyou Lava Beds National Monument, Captain Jacks Stronghold Comment
  CAS-BOT-BC81339  Taxus brevifolia J. G. Lemmon & Wife s.n. Siskiyou Near Mt. Shasta Comment
  CAS-BOT-BC81345  Taxus brevifolia Alice Eastwood 1921-7-26 10857 Siskiyou Soda Creek Comment
  CAS-BOT-BC85233  Taxus brevifolia W. R. Dudley 1899-8-14 s.n. Siskiyou Near Pig Creek, McCloud Comment
  CAS-BOT-BC85239  Taxus brevifolia Doris K. Kildale 1928-7-4 5475 Siskiyou 3 miles west of summit of divide between Sawyers Bar & Etna Mills Comment
  CAS-BOT-BC85245  Taxus brevifolia Doris K. Kildale 1929-5-12 7784 Siskiyou Sawyers Bar, North Fork of Salmon River Comment
  RSA605357  Taxus brevifolia L. C. Wheeler 1959-7-25 7596 a Siskiyou Marble Mountains: Camp Three, Rogers Creek Comment
  SEINET3876109 Image available Taxus brevifolia J. P. Smith, Steve Selva 1970-7-15 4355 Siskiyou Klamath National Forest; road to Happy Camp.; 0 732 Comment
  UC8  Taxus brevifolia W. H. Brewer 1862-9-9 1366 Siskiyou near Mt. Shasta; Upper Sacramento Valley Comment
  RSA52435  Taxus brevifolia Dorothy Parker 1945-4-30 s.n. Siskiyou Kidder Creek, Scott Valley. 854 Comment
  NY185763  Thelypodiopsis brachypoda H. M. Hall 06 1903 4092 Siskiyou Sierra Nevada Mountains; Mount Shasta; Shasta Valley 914.4 Comment
  HSC78074  Thelypodium brachycarpum R. & G. Pederson 1979-9-18 Siskiyou Tulelake, Lower Klamath National Wildlife Refuge, islands 1238 Comment
  LA204480  Thelypodium brachycarpum A. A. Heller; 1927-8-2 14441 Siskiyou N end of Shasta Valley, near the Klamath River Comment
  RSA604057  Thelypodium brachycarpum L. C. Wheeler 1935-6-30 3637 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  SEINET10735477 Image available Thelypodium brachycarpum Harvey M. Hall, Ernest B. Babcock Hall 4092 Siskiyou Shasta Valley 914 Comment
  RSA17457  Thelypodium flexuosum Elmer I. Applegate 1935-6-2 9286 a Siskiyou Frenner s ranch, near north boundary of Lava Beds National Monument. Comment
  UC1213789  Thlaspi montanum var. montanum Jean Langenheim 1957-5-19 4344 Siskiyou at intersection of Miner's Creek road and Tiger Creek road; intersection Miner's Creek road and Tiger Creek road Comment
  RSA120844  Tofieldia glutinosa subsp. occidentalis G. D. Barbe 1957-7-13 375 Siskiyou Big Flat Public Camp, Klamath National Forest. 1524 Comment
  JEPS62174  Tofieldia occidentalis subsp. occidentalis W. L. Jepson 1907-7-10 2879 Siskiyou Cottage Grove, Crescent City Trail at Onion Patch western Siskiyou Co. Comment
  UC1483561  Tofieldia occidentalis subsp. occidentalis Maralyn A. Renner 1980-6-26 1164 Siskiyou Klamath National Forest 1389 Comment
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Feb 9 2009
  HSC41041  Tonella tenella J. O. Sawyer 1970-3-4 2060 Siskiyou N of Idlewild Campground 762 Comment
  HSC30688  Torreyochloa erecta Frederick W. Oettinger 1969-9-1 1582 Siskiyou Marble Mtns. Wilderness Area, between Bear Meadow and English Peak. 2027 Comment
  JEPS25581  Tragopogon dubius Rimo Bacigalupi 1959-7-2 7212 Siskiyou Weed; e outskirts 1066 Comment
  POM56352  Tragopogon porrifolius Copeland 1903-8-4 3886 Siskiyou Sisson. Comment
  HSC69161  Triantha occidentalis subsp. occidentalis Maralyn A. Renner 1980-8-4 2206 Siskiyou Flint Valley 1390 Comment
  SEINET13710780  Trichostema oblongum Lowell William Ahart, Lowell William Ahart 1998-1 9358 Siskiyou NE of Weed, E of Grass Lake, and West of Bray on Old Stste Hwy. 0.8 Mi. E of Tennent Rd. (T44N, R1W, sec 20, SW 1/4) 4650 Ft. 1417 Comment
  HSC68358  Trientalis latifolia J. P. Smith 1973-5-5 6508 Siskiyou Along Cook and Green Pass Rd. Comment
  SBBG15778  Trientalis latifolia D. Myrick 1961-6-21 305 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  POM28045  Trifolium albopurpureum Geo. D. Butler 1909-5-13 710 Siskiyou Klamath hills Comment
  JEPS65824  Trifolium cyathiferum Geo. D. Butler 1908-8-3 386 Siskiyou Shackelford Creek Log Lake 1524 Comment
  JEPS101153  Trifolium eriocephalum var. eriocephalum Dean W. Taylor 1996-6-19 15713 Siskiyou Lime Gulch; bordering Shasta Valley (about 15 miles south of Yreka) 1188 Comment
  CHSC91386  Trifolium hirtum Lowell Ahart; John Dittes 2005-6-10 12074 Siskiyou Overflow area, on the north side of the Shasta River, about 100 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CHSC63511  Trifolium longipes subsp. elmeri Vernon H. Oswald; Lowell Ahart 1994-8-1 6423 Siskiyou Gumboot Creek on the upstream side of Forest Rd. 26, ca. 0.5 mi (air) NE of Gumboot Lake, W. of Mt. Shasta (city). 1783 Comment
  UC630806  Trifolium longipes var. elmeri A. A. Heller 1915-7-18 12099 Siskiyou Metcalf's Ranch northeast base of Mt. Eddy 1371 Comment
  UC1409229  Trifolium longipes var. hansenii Frederick W. Oettinger 1969-8-8 1298 Siskiyou near English Lake (vicinity of English Peak); Salmon Mtns, Marble Mtn Wilderness Area 1828 Comment
  HSC36434  Trifolium productum J. O. Sawyer 1969-7-24 1478 Siskiyou SW of Sugar Lake 1890 Comment
  RSA237893  Trifolium repens Frederick W. Oettinger 1969-8-9 1311 Siskiyou Above trail near Young Cabin in region of Upper Abbots Cabin. The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1829 Comment
  RSA582466  Trifolium variegatum var. variegatum Louis C. Wheeler 1935-6-27 3618 Siskiyou Greenview, Scott Valley. 884 Comment
  JEPS74422  Trifolium wormskioldii W. J. Ferlatte 1966-8-2 228 Siskiyou Big Flat hillside Trinity Alps (betw campground and Sout Fork Salmon River) Comment
  POM109158  Trillium albidum Geo D. Butler 1909-4-14 669 Siskiyou Humbug Creek Comment
  CAS-BOT-BC519098  Trillium chloropetalum var. chloropetalum Gilbert Muth 1966-7-8 376 Siskiyou Marble Valley, Marble Mountains 1792 Comment
  HSC69029  Trillium ovatum Maralyn A. Renner 1980-7-28 2184 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  CAS-BOT-BC133469  Trillium ovatum Clarence R. Quick 1959-6-19 59 -17 Siskiyou 6.7 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  HSC60803  Trillium ovatum subsp. oettingeri Maralyn O'Meara 1973-6-25 240 Siskiyou Tributary to N Russian Creek, 1/2 mi. S of Etna Summit on rd. from Sawyer's Bar to Etna 1707 Comment
  RSA234820  Trillium ovatum subsp. oettingeri Frederick W. Oettinger 1969-7-10 962 Siskiyou Along inlet brook to Upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CAS-BOT-BC200093  Trisetum canescens John Thomas Howell 1939-8-9 15199 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  POM207179  Trisetum canescens E. B. Copeland 1903-9-7 3794 Siskiyou Mt. Eddy. 2744 Comment
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Jan 23 2011
  UCD78067  Trisetum canescens Robert E. Preston 2001-8-26 1756 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1828 Comment
  HSC39671  Trisetum cernuum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5727 Siskiyou 0.9 mi. S of Sugar Creek on Parrott Mill Rd. 1341 Comment
  CAS-BOT-BC200263  Trisetum spicatum L. R. Short 1933-9-8 72 Siskiyou Klamath National Forest. Near Dry Lake 2103 Comment
  RSA238974  Trisetum spicatum Frederick W. Oettinger 1968-8-22 593 Siskiyou between English Peak and Diamond Lake; Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UCD78066  Trisetum spicatum Robert E. Preston 2001-8-26 1769 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 2103 Comment
  SEINET10960259  Trisetum spicatum A. Arthur Heller 1914-8-28 Heller 11735 Siskiyou Found sparingly on the east side of Mt. Eddy, in granite. Near pine trees. It grows in scattered tufts. 2438 Comment
  CAS-BOT-BC133494  Triteleia crocea Dorothy Parker 1948-5-16 s.n. Siskiyou Near Harstrand Gulch, east side of Scott Valley 914 Comment
  UCD13281  Triteleia crocea K. F. Mawdsley 1996-7-10 15 Siskiyou From Castle Lake Trailhead to Little Castle Lake, T 39N R 4W, NW 1/4 of Section 19, Seven Lakes Basin 7.5 topo. 1661 Comment
  JEPS104867  Triteleia crocea var. crocea Dean W. Taylor 1996-5-29 15639 Siskiyou Highway 3 about 4 miles east of southern edge Yreka; Soap Creek Ridge 822 Comment
  UC1326232  Triteleia crocea var. modesta Theodore F. Niehaus 1966-6-20 711 Siskiyou n-facing slope above Castle Lake Comment
  HSC58903  Triteleia hyacinthina Marvin Butler 1971-7-21 188 Siskiyou Near Bell Echo Camp, close to town of Cave Junction. 1433 Comment
  UC333367  Triteleia hyacinthina unknown 1889-6-27 Siskiyou near Edgewood Comment
  CAS-BOT-BC522340  Triteleia hyacinthina W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klink's Meadow Comment
  UC765407  Triteleia ixioides subsp. anilina W. Bridge Cooke 1939-6-23 13540 Siskiyou in lower part Wagon Camp Flats (Mount Shasta); Mount Shasta Comment
  UC618729  Tsuga mertensiana unknown 1938-9-8 11677 Siskiyou around the borders of Panther Creek Meadows (and extending across Gray Butte to the e forming solid forest island of Hemlock in the Shasta Fir Zone in vicinity of Squaw Creek Meadows); Mount Shasta, , Gray Butte, Panther Cre Comment
  CAS-BOT-BC91277  Umbellularia californica Carl B. Wolf 1927-8-27 1149 Siskiyou On the Klamath River above the Salmon River. Comment
  HSC27590  Umbellularia californica Carl W. Mize 1972-6-21 73 Siskiyou Along trail 320 Comment
  RSA15587  Umbellularia californica C. B. Wolf 1927-8-27 1135 Siskiyou Mouth of Crawford Creek, Klamath River. Comment
  SEINET7040104  Vaccaria hispanica A. G. Vestal 1963-6-1 s.n. Siskiyou 2.8 miles north of Montague. Hawkinsville Quad. UTM Zone 10, 539617mE, 4625157mN. Comment
  CAS-BOT-BC199200  Vaccinium cespitosum Harley P. Chandler 1901-6-1 1617 Siskiyou Near Marble Mountain 2133 Comment
  HSC22452  Vaccinium cespitosum J. O. Sawyer 1969-8-1 1595 Siskiyou Above Horseshoe Lake 1921 Comment
  HSC69171  Vaccinium cespitosum Maralyn A. Renner 1980-8-6 2329 Siskiyou Cracker Meadow 1555 Comment
  HSC96882  Vaccinium cespitosum Gordon Leppig 1998-7-10 912 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 671 Comment
  UC1409422  Vaccinium deliciosum Frederick W. Oettinger 1969-7-14 1013 b Siskiyou Charmaine Lake Salmon Mountains, Marble Mountain Wilderness Area, English P 1920 Comment
  CAS-BOT-BC199230  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  HSC68972  Vaccinium membranaceum Maralyn A. Renner 1980-8-7 2361 Siskiyou Ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  HSC98189  Vaccinium membranaceum J. O. Sawyer 1969-8-5 1769 Siskiyou W of Little Duck Lake 2073 Comment
  HSC19415  Vaccinium scoparium J. O. Sawyer 1968-7-9 429 Siskiyou W of Little Duck Lake. 1936 Comment
  UCR38387  Vaccinium uliginosum subsp. occidentale G. R. Ballmer, G. F. Pratt 1985-6-19 s.n. Siskiyou Trinity Mtns, Cedar Lake, WNW of Dunsmuir, c. 1 mi north of Gumboot Lake 1738 Comment
  RSA761682  Valeriana sitchensis subsp. sitchensis Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63361 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Comment
  CDA6694  Valerianella locusta G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-28 2585 Siskiyou Between Old Highway 99 and railroad at Truttman Lane, 3.2 km south of Grenada. Comment
  JEPS83861  Vancouveria chrysantha Wayne Roderick July 1976 Siskiyou along trail to spring vicinity Cook and Green Pass (Siskiyou Mts.); , vicin Cook and Green Pass 1463 Comment
  CAS-BOT-BC76064  Vancouveria hexandra Lillian Mott 1976-7-9 47 LM76 Siskiyou Trail to spring, Cook and Green Pass. 1463 Comment
  UC61184  Veratrum californicum var. californicum W. A. Setchell, C. C. Dobie 1902-7-17 Siskiyou Sisson Mount Shasta Comment
  UCD78077  Veratrum californicum var. californicum Robert E. Preston 2002-7-14 1931 Siskiyou Klamath National Forest, N slope of Rainbow Mountain 1895 Comment
  HSC785  Veratrum viride William J. Ferlatte 1967-8-20 1043 Siskiyou Caribou Basin 2134 Comment
  CAS-BOT-BC527060  Veratrum viride var. eschscholzianum Gilbert Muth 1965-8-3 s.n. Siskiyou Marble Valley Comment
  UCSB14918  Verbascum blattaria Breedlove, Dennis 1962-6-11 Siskiyou Scott River, 3.5 miles south of Scott Bar 609 Comment
  CAS-BOT-BC238135  Veronica copelandii Helen K. Sharsmith 1960-8-27 4840 Siskiyou Scott Mountains. Near ridgetop between Marshy and Mosquito lakes, northeast-facing. Salmon-Trinity Alps Wilderness Area, Shasta National Forest Comment
  UCD124785  Veronica triphyllos Iris Coonrod 1963-4-1 s.n. Siskiyou Coonrod Ranch, Montague. 914 Comment
  HSC36869  Vicia americana var. americana J. P. Smith 1974-5-26 7544 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC1409224  Vicia americana var. americana Frederick W. Oettinger 1969-7-29 1103 Siskiyou shore of Uncle's Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  CAS-BOT-BC5205  Vicia americana var. americana E. B. Copeland 1903-8-12 165 Siskiyou Headwaters of Sacramento River. Sisson Comment
  UC1333323  Vicia villosa subsp. villosa Dorothy Parker 1949-7-3 328 Siskiyou Scott Valley 914 Comment
  CAS-BOT-BC264070  Viola adunca Geo. D. Butler 1909-4-25 606 Siskiyou Quartz Valley Comment
  HSC19330  Viola adunca J. O. Sawyer 1969-7-9 1224 Siskiyou Along trail to Sugar Lake. 1768 Comment
  JEPS45934  Viola adunca Rimo Bacigalupi, L. R. Heckard 1966-6-15 9178 Siskiyou just n of Cedar Lake (in The Eddys, upper drainage of the South Fork of the Sacramento River); Sacramento River 1731 Comment
  RSA184647  Viola adunca Clare B. Hardham 1965-8-20 13045 Siskiyou One mile Lake. Marble Mtns. 1524 Comment
  SEINET11970799  Viola adunca H. P. Chandler 1901-1 1585 Siskiyou near Marble Mountain, North Coast Ranges 1829 Comment
  UC581486  Viola beckwithii H. L. Mason 1930-3-28 68 Siskiyou near Weed Comment
  SEINET215139 Image available Viola beckwithii S. Holloway 1963-4-8 17 Siskiyou Dirt road east of Hwy 99 between Gazelle and Edgewood 762 Comment
  HSC18943  Viola glabella J. O. Sawyer 1968-6-18 184 Siskiyou Above S Russian Creek on W side. 1463 Comment
  HSC29290  Viola glabella Frederick W. Oettinger 1968-8-17 560 Siskiyou Marble Mtn. Wilderness Area; NW of Pine Lake 1890 Comment
  RSA402200  Viola glabella M. B. Dunkle 1944-6-25 9033 Siskiyou Siskiyou Nat'l Forest. 1829 Comment
  UC1222518  Viola glabella Joseph P. Tracy 1951-6-16 19484 Siskiyou about 3 mi s Oregon-California State line (summit of the Siskiyous, at crossing of the Takilma-Happy Camp Road); Siskiyous Comment
  UC19247  Viola macloskeyi Milo S. Baker Aug., 1893 Siskiyou Medicine Lake 2133 Comment
  HSC36882  Viola macloskeyi J. P. Smith 1974-5-26 7532 Siskiyou Along FS 47N03, Chandler Glade 1768 Comment
  CHSC86631  Viola praemorsa subsp. praemorsa Jenny Marr 1993-7-1 14 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA233647  Viola purpurea subsp. integrifolia Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38995 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  UCD78086  Viola purpurea subsp. integrifolia Robert E. Preston 2002-6-20 1824 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope 1896 Comment
  CAS-BOT-BC183749  Vulpia microstachys var. confusa Dorothy Parker 1951-5-23 80 Siskiyou [McConahuay] McConaughy Gulch, Scott Valley 914 Comment
  SEINET10604480  Vulpia microstachys var. pauciflora A. Arthur Heller 1905-6-15 Heller 8039 Siskiyou Near Sisson. Comment
  UC336952  Vulpia myuros var. hirsuta unknown 1888-9-12 5447 Siskiyou side of Shasta Comment
  CAS-BOT-BC73637  Woodsia oregana John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53436 Siskiyou Shaded rocky bank along East Fork Scott River, 2 miles east of Callahan on road to Gazelle. 990 Comment
  CAS-BOT-BC529185  Xerophyllum tenax L. E. Smith 1913-6-1 332 Siskiyou Cantara Comment
  CAS-BOT-BC529188  Xerophyllum tenax A. A. Heller 1919-6-29 s.n. Siskiyou Near Wagon creek falls, east side of Mt. Eddy Comment
  RSA96935  Xerophyllum tenax Percy C. Everett, E. K. Balls 1954-10-11 20269 Siskiyou Road from Castle Lake to town of Mt. Shasta, 2.5 miles north from Castle Lake Forest Service camp 1250 Comment
  UC1099990  Zannichellia palustris Herbert L. Mason 1931-5-9 5863 Siskiyou Shasta Creek Comment
  POM312978  Zannichellia palustris Verne Grant, Irving Schneider 1947-8-26 8305 Siskiyou Interstate Highway, Lower Klamath Lake Comment
  CAS-BOT-BC534034  Zigadenus paniculatus L. E. Smith 1913-6-12 354 Siskiyou Sulloway Creek Comment
  CAS-BOT-BC534041  Zigadenus paniculatus L. E. Smith 1913-4-26 132 Siskiyou Dunsmuir Comment
  HSC37438  Zigadenus venenosus var. venenosus John Rehling 1976-6-1 400 Siskiyou Scott Mtn. Summit Comment



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