Search Results — 2000 specimen records retrieved (1374 records with coordinates)
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77929  Abies G. A. Coleman 1901-7-31 35 Siskiyou west of forks of Salmon River Comment
  CAS-BOT-BC78123  Abies X shastensis Doris K. Kildale 1928-7-2 5336 Siskiyou Salmon Summit via Horn Creek Trail 1981 Comment
  HSC32568  Abies X shastensis Steven Lagos 1974-5-26 91 Siskiyou Duck Lake Creek drainage 1524 Comment
  HSC4981  Abies amabilis J. O. Sawyer 1968-7-22 525 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  SD75844  Abies concolor Darley F. Howe 1969-9-12 Siskiyou Siskiyou Mountains, west side of Grayback 1525 Comment
Read comments
Jul 10 2010
  CAS-BOT-BC73511  Abies concolor Doris K. Kildale 1929-4-27 7481 Siskiyou Cecilville Comment
  SBBG133153  Abies concolor B. C. Templeton 1968-6-13 11331 Siskiyou Mt Shasta, on rd to ski bowl 2835 Comment
  HSC31508  Abies lasiocarpa Steve Selva, Roger Jensen 1974-8-25 52 Siskiyou W end of Little Duck Lake Comment
  HSC81890  Abies lasiocarpa var. lasiocarpa D. V. Hemphill 1986-7-18 Siskiyou S of Mavis Lake Comment
  OBI36530  Abies magnifica David J. Keil 1983-7-3 17385 Siskiyou Slopes of Mt Shasta along Memorial Hwy Comment
  UC915714  Abies magnifica W. L. Jepson July, 1907 Siskiyou trail from Shackelford Canyon to Cudahay Valley (on side of mt.); Marble Mountain, Whiskey Camp Comment
  RSA0091811  Abies magnifica var. shastensis Bonnie C. Templeton 1968-6-13 11330 Siskiyou Along road to castle Lake, ca. 7 mi. s.w. of Mt. Shasta. 2073 Comment
  SDSU1514  Abies procera D. F. Howe 1969-9-12 4675 Siskiyou West side of Little Grayback. 1524 Comment
  CAS-BOT-BC330616  Acer circinatum Doris K. Kildale 1929-7-20 8658 Siskiyou Trail up South Fork Indian Creek to Elk Lick Comment
  CAS-BOT-BC331050  Acer glabrum var. glabrum R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-2 s.n. Siskiyou Near Kidd Creek 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
  CAS-BOT-BC330990  Acer glabrum var. glabrum Elmer I. Applegate 1923-9-7 3969 Siskiyou Siskiyou Mountains, Klamath River Watershed. Comment
  CAS-BOT-BC94942  Acer glabrum var. torreyi R. C. Wenk 2005-7-15 238 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine Trail 2042 Comment
  HSC44987  Acer glabrum var. torreyi J. O. Sawyer 1978-6-19 3242 Siskiyou Marble Mtn. Wilderness Area, ridges E of Shelly Lake 2165 Comment
  UCSC008592  Acer macrophyllum Randall Morgan 2003-7-12 3009 Siskiyou End of Grider Creek Road, Seiad Valley Comment
  POM85908  Acer negundo subsp. californicum Geo. D. Butler 1910-6-30 1617 Siskiyou [Unspecified] Comment
  HSC68420  Achillea millefolium Maralyn A. Renner 1980-6-9 856 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  CAS-BOT-BC18875  Achillea millefolium Alice Eastwood 1912-8-30 s.n. Siskiyou Mounty Eddy Comment
  CAS-BOT-BC30436  Achillea millefolium Carl B. Wolf 1927-8-26 1093 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  HSC30339  Achillea millefolium Dale R. Gradek 1974-5-25 47 Siskiyou On Road Eight, 0.9 miles from junction with Hwy. 3 Comment
  RSA50158  Achillea millefolium E. K. Balls 1949-7-9 s.n. Siskiyou Salmon Mtns. top of pass on rd from Etna to Sawyer's Bar. 1479 Comment
  RSA238570  Achlys triphylla Frederick W. Oettinger 1969-9-4 1669 Siskiyou Near gap between Tobacco Lake and Toms Lake Basin (in Tobacco Lake Basin), Salmon Mountians, the High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1829 Comment
  UC593526  Achnatherum lemmonii E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1947 Siskiyou 8 mi s Yreka 822 Comment
  POM115236  Achnatherum lemmonii var. lemmonii Geo D. Butler 1909-6-13 830 Siskiyou Moffitt Creek Comment
  UCD51016  Achnatherum occidentale Beecher Crampton 1956-8-21 3832 Siskiyou 1 mile northeast of Gumboot Lake, the headwater of the south fork of the Sacramento River. Comment
  UCD55558  Achnatherum occidentale L. Whitney 1934-6-29 2193 Siskiyou Antelope Creek, near Tennant. 1463 Comment
  CHSC91226  Achnatherum thurberianum Lowell Ahart; John Dittes 2005-6-9 12027 Siskiyou Hill, south of a rock fence, about 100 yards northeast 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
  HSC27690  Acmispon micranthus Carl W. Mize 1972-6-8 40 Siskiyou Along main trail 366 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
  JEPS60369  Aconitum columbianum Geo. D. Butler 1908-8-3 363 Siskiyou Shackelford Creek, Log Lake 1524 Comment
  JEPS80543  Aconitum columbianum Gilbert Muth 1965-8-16 220 Siskiyou Marble Mt. Wilderness Area, Black Mt. 1792 Comment
  UCD95300  Aconitum columbianum Beecher Crampton 1956-8-21 3801 Siskiyou slopes above Gumboot Lake, headwater of the south fork of the Sacramento River. Comment
  CAS-BOT-BC391511  Aconitum columbianum subsp. columbianum A. A. Heller 1915-8-26 12240 Siskiyou Mt Eddy 1828 Comment
  CAS-BOT-BC391524  Aconitum columbianum subsp. columbianum H. E. Brown 1897-6-15 514 Siskiyou On the North side of Mt. Shasta 2743 Comment
  CHSC71599  Aconitum columbianum var. columbianum Vernon H. Oswald; Lowell Ahart 1998-8-3 9437 Siskiyou Near the Pacific Crest Trail in the Scott Mtns. west of Kangaroo Lake. 1981 Comment
  RSA183668  Aconitum columbianum var. columbianum Gilbert Muth 1965-8-16 220 Siskiyou Marble Valley, Marble Mts. Comment
  HSC27338  Aconogonon davisiae J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5706 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  CAS-BOT-BC413843  Aconogonon davisiae J. M. Tucker 1948-8-2 1760 Siskiyou Panther Meadows, Mt. Shasta 2407 Comment
  HSC78206  Aconogonon phytolaccifolium L. P. Janeway 1983-7-24 449 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  HSC86554  Aconogonon phytolaccifolium D. K. Imper 1987-7-23 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  SJSU2559  Aconogonon phytolaccifolium H. L. Buckalew 1962-7-7 Siskiyou Poker Flat c. 3 mi W of junction of Indian Cr with W Branch Indian Cr, Siskiyou Mts 1082 Comment
  SEINET4175530  Aconogonon phytolaccifolium G. D. Butler 1910-7-8 1674 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC391706  Actaea rubra Doris K. Kildale 1928-7-2 5415 Siskiyou Salmon Summit, via Horn Creek trail 1981 Comment
  JEPS74502  Adenocaulon bicolor W. J. Ferlatte 1966-8-18 405 Siskiyou 3 mi s, in wooded area Big Flat; Trinity Alps 1584 Comment
  CAS-BOT-BC69000  Adiantum aleuticum Gordon H. True; John Thomas Howell 1972-6-8 48860 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  RSA239284  Adiantum aleuticum Frederick W. Oettinger 1966-6-23 28 Siskiyou Cecil Creek about 100 yards from where it crosses Black Gulch Road, Salmon River District, Klamath National Forest, Cecilville Comment
  UCD51462  Aegilops cylindrica T. C. Fuller 1962-6-12 8970 Siskiyou Little Shasta Rd., 1 mile east of Montague. Comment
  CAS-BOT-BC29450  Ageratina occidentalis Louis C. Wheeler 1934-8-9 3070 Siskiyou Dead Cow Creek, Siskiyou Mountains 1981 Comment
  SEINET6700676 Image available Ageratina occidentalis E. K. Balls 1949-7-10 13951 Siskiyou 1.5 miles from Finlay Camp on road from Etna to Sawyer's Bar 817 Comment
  HSC76936  Agoseris aurantiaca K. T. Stillman 1976-8-7 210 Siskiyou Marble Mtn. Wilderness Area. 1951 Comment
  HSC78375  Agoseris aurantiaca L. P. Janeway 1983-9-11 658 Siskiyou Poker Flat 1524 Comment
  RSA211195  Agoseris aurantiaca William J. Ferlatte 1966-8-5 322 Siskiyou Wooded slope on the north side of Caribou Mtn. 1921 Comment
  UC1409462  Agoseris aurantiaca var. aurantiaca Frederick W. Oettinger 1968-8-14 518 Siskiyou Midway between Tom Taylor Cabin and English Peak Lookout, the High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1996 Comment
  UC585113  Agoseris grandiflora var. grandiflora E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1940 Siskiyou about 8 mi s of Yreka 822 Comment
  HSC67939  Agoseris heterophylla J. P. Smith 1973-5-5 6481 Siskiyou Along Cook and Green Pass Rd. Comment
  JEPS93824  Agoseris heterophylla Vernon H. Oswald and Lowell Ahart 1998-6-11 9196 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on the s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  UCD128661  Agoseris retrorsa Wm. E. Moon 1958-5-29 s.n. Siskiyou State Highway 97, 12 miles northeast of Weed. 1219 Comment
  HSC45889  Agropyron cristatum Laura Witherspoon 1978-8-15 79 Siskiyou Klamath National Forest, 0.1 miles S of junction of Forest Service Rds. 6Q01 and 7S01 1378 Comment
  CAS-BOT-BC126986  Agrostis exarata Louis C. Wheeler 1934-7-2 2843 Siskiyou Klamath Forest. Little Smoky Creek. 1280 Comment
  UCD52402  Agrostis exarata E. Wilson 1934-7-1 s.n. Siskiyou Shasta Springs. Comment
  RSA239098  Agrostis idahoensis Frederick W. Oettinger 1968-9-7 765 Siskiyou On the N bank of Tobacco Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UCD18949  Agrostis idahoensis A. H. Murphy 1954-8-11 54 A Siskiyou Klamath National Forest, U.S.F.S., Round Meadow. 1676 Comment
  SEINET7594039 Image available Agrostis idahoensis F. W. Oettinger 1968-9-7 765 Siskiyou W. Siskiyou County, Tobacco Lake, Salmon Mountains 1890 Comment
  HSC22421  Agrostis pallens J. O. Sawyer 1969-7-25 1526 Siskiyou SE facing slope W of Sugar Lake 1845 Comment
  HSC30632  Agrostis pallens Frederick W. Oettinger, R. F. Thorne 1969-8-4 1161 Siskiyou Marble Mtn. Wilderness Area, above Half-way Spring, on trail from English Lake to Diamond Lake 1951 Comment
  RSA239080  Agrostis pallens Frederick W. Oettinger 1969-8-19 1456 Siskiyou South of big bare area between King David's and Abbot's Basin . The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  UC1265312  Agrostis pallens F. W. Oettinger 1969-8-14 1377 Siskiyou inlet to English Lake (margins of open areas); Salmon Mountains 1752 Comment
  UC814987  Agrostis pallens Louis C. Wheeler 1934-8-14 3134 Siskiyou meadow on n side Siskiyou Mountains, White Mt. 1767 Comment
  UC1108539  Agrostis scabra Ira L. Wiggins 1955-7-22 13448 Siskiyou 9.5 mi above Cecilville; South Fork of Salmon River 1066 Comment
  UC1265425  Agrostis stolonifera Frederick W. Oettinger 1969-8-24 1527 Siskiyou vicinity English Peak (Upper English Lake); Salmon Mountains, Marble Mountain Wilderness Area, English P 1798 Comment
  HSC103905  Agrostis variabilis Dana York, Richard Helliwell 2010-9-11 3013 Siskiyou Six Rivers National Forest. Northeast slope of Broken Rib Mountain 1671 Comment
  UC1108542  Agrostis variabilis Ira L. Wiggins 1955-7-27 13530 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  CAS-BOT-BC459428  Allium acuminatum Geo. D. Butler 1909-5-26 788 Siskiyou near Yreka Comment
  POM110310  Allium acuminatum Geo D. Butler 1910-5-17 1357 Siskiyou Dry hill Yreka. Comment
  CAS-BOT-BC462371  Allium amplectens Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  SEINET12048082  Allium bolanderi Unknown 1950-1 52 Siskiyou 2.5 mi W of Hilt Comment
  HSC46047  Allium falcifolium Maralyn O'Meara 1974-5-25 429 Siskiyou On Rd. 8, 2.4 mi. W of junction with Hwy. 3 1006 Comment
  UC1299629  Allium siskiyouense Freed W. Hoffman 1950-7-13 3251 Siskiyou e slope at Baldy Lookout Baldy Lookout Comment
  HSC78219  Allium validum L. P. Janeway 1983-8-6 512 Siskiyou At Poker Flat, lower part of meadow near drainage 1524 Comment
  RSA126291  Allium validum I. L. Wiggins 1955-7-21 13440 Siskiyou Rush Creek Trail 2 mi. above Mt. View Ranch. 1098 Comment
  CAS-BOT-BC453446  Allotropa virgata Alice Eastwood 1912-9-1 2060 Siskiyou Mount Shasta Comment
  UC618907  Allotropa virgata W. Bridge Cooke 1938-7-15 11227 Siskiyou Mount Shasta 2133 Comment
  CAS-BOT-BC171402  Alnus incana subsp. tenuifolia Elmer I. Applegate 1923-9-7 3972 Siskiyou Doggett Ridge, near head of Doggett Creek, S slope of the Siskiyou Mountains 1524 Comment
  CAS-BOT-BC171409  Alnus incana subsp. tenuifolia A. A. Heller 1916-8-24 12559 Siskiyou near Sisson 10 Comment
  POM212071  Alnus incana subsp. tenuifolia C. B. Wolf 1930-10-22 1752 Siskiyou 1 mile W of Mt Shasta City. 1067 Comment
  UC1408783  Alnus incana subsp. tenuifolia Frederick W. Oettinger 1968-9-4 692 Siskiyou Abbots Lake outlet Salmon Mountains, Marble Mountain Wilderness Area (high lake basins in vicinity of English Peak, w Siskiyou Co.) 1722 Comment
  HSC45043  Alnus viridis subsp. sinuata J. O. Sawyer 1978-6-21 3288 Siskiyou Marble Mountain Wilderness, trail W of Dollar Meadows 1890 Comment
  RSA238550  Alnus viridis subsp. sinuata Frederick W. Oettinger 1968-9-8 779 Siskiyou The Salmon Mountains, in the vicinity of English Peak, Marble Mountains Wilderness Area, around the outlet stream of English Lake. 1753 Comment
  CHSC88382  Alyssum alyssoides Jenny Marr 1993-7-1 187 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS52986  Alyssum alyssoides Geo. D. Butler 1909-5-13 722 Siskiyou Cottonwood Creek Comment
  CDA3622  Alyssum alyssoides Don Shaw 1984-4-8 Siskiyou Yreka Ager Road, Montague. 0 Comment
  RSA245268  Amaranthus blitoides J. P. Smith, J. Sawyer 1972-9-14 5797 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  JEPS54309  Amaranthus hybridus Geo. D. Butler 1908-7-13 543 Siskiyou near Yreka ( garden on Butler's ranch) Comment
  HSC26932  Amaranthus hybridus J. P. Smith, J. O. Sawyer 1971-9-18 4839 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  HSC68453  Amelanchier alnifolia Maralyn A. Renner 1980-7-4 1401 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  UC1409346  Amelanchier alnifolia var. pumila Frederick W. Oettinger 1969-8-13 1358 b Siskiyou below Halfway Spring (trail from English Lake to Diamond Lake, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  RSA237653  Amelanchier pallida Frederick W. Oettinger 1969-7-18 1057 Siskiyou SW of upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  RSA453150  Amelanchier pallida Christopher Davidson 1975-6-5 2686 Siskiyou 0.8 mile N of Scott Mtn Summit on Hwy 3. 1585 Comment
  RSA47626  Amelanchier pallida Roxana S. Ferris 1948-6-12 11800 Siskiyou At Mule Creek crossing on Scott Mt. Road so. of Callahan. 1463 Comment
  UCD112889  Amelanchier pallida Jack Major; M. Fleschner, R. Pemble 1966-9-5 s.n. Siskiyou SE of Marble Mountain, Marble Mountains. 1828 Comment
  CAS-BOT-BC136888  Amelanchier utahensis J. H. Thomas 1954-5-13 4126 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. Vicinity of Blind Horse Creek 1066 Comment
  CAS-BOT-BC136916  Amelanchier utahensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11889 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
  UC1540021  Amelanchier utahensis M. Mitchell 1936-5-14 18 Siskiyou Captain Jack's Stronghold 1249 Comment
  UC618747  Amelanchier utahensis unknown 1938-8-5 11434 Siskiyou MacBride Spring Road; Mount Shasta Comment
  UCSB15828  Amelanchier utahensis Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  HSC63989  Amsinckia intermedia J. P. Smith 1973-5-5 6558 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC391753  Anemone L. E. Smith 1913-6-29 s.n. Siskiyou Mt. Eddy Comment
  CAS-BOT-BC94417  Anemone deltoidea R. C. Wenk 2005-7-15 233 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail, next to a creek 1828 Comment
  POM100558  Anemone deltoidea Geo. D. Butler 1910-7-9 1713 Siskiyou Marble Mtn. 1677 Comment
  SEINET12093238  Anemone deltoidea Unknown 1982-1 20592 Siskiyou Cook and Green Pass 1524 Comment
  JEPS82703  Anemone drummondii Wayne Roderick 1984-6-7 Siskiyou sw Stewart Springs; Cabin Meadow 1935 Comment
  UC1094391  Anemone drummondii Rimo C. Bacigalupi with Galen Smith 1957-6-26 5952 Siskiyou ca. 6 mi. due s. Mt. Eddy (slope above s. end Gumboot Lake, head of S. Fork Sacramento R.); S. Fork Sacramento R., Gumboot Lake 1859 Comment
  UC56723  Anemone drummondii Harley P. Chandler 1901-6-1 1676 Siskiyou Marble Mt. North Coast Ranges, Marble Mt. 2438 Comment
  HSC32294  Anemone drummondii J. O. Sawyer 1971-6-30 2398 Siskiyou 1677 Comment
  RSA215610  Anemone multifida Gilbert Muth 1969-8-10 1315 Siskiyou Ridge W of Boulder Peak. 2287 Comment
  UC618684  Anemone occidentalis W. Bridge Cooke 1938-7-21 11303 Siskiyou s. Horse Camp (crekk basins around s.w. slopes Mt. Shasta); Mt. Shasta Comment
  SEINET10695251  Angelica arguta Karen M. Meyer, Andrew Townesmith 2007-7-31 Meyer 180 Siskiyou Shasta-Trinity National Forest. 8.1 mi. on NF Rd. 17, off US Hwy. 97. 1607 Comment
  HSC71954  Angelica tomentosa J. M. DiTomaso 1980-8-4 1847 Siskiyou Elk Valley Campground, end of Gasquet-Orleans Rd. 1341 Comment
  UC221516  Antennaria argentea H. E. Brown Jun 1 1897-Jun 10 1897 297 Siskiyou near Sisson 1083 Comment
  POM34162  Antennaria argentea Geo. D. Butler 1909-5-31 756 Siskiyou Humbug Creek. Comment
  JEPS13177  Antennaria geyeri W. L. Jepson 1894-1 Siskiyou Sisson Comment
  HSC4659  Antennaria geyeri W. L. Jepson Jul 1894 Siskiyou Sisson (now the town called Mt. Shasta) Comment
  SEINET10474093  Antennaria rosea Mary Susan Taylor 1980-7-8 Taylor 3098 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
  UC1409504  Antennaria rosea F. W. Oettinger 1969-8-22 1485 Siskiyou Pierce's Draw Salmon Mountains 1676 Comment
  HSC45048  Antennaria rosea subsp. rosea J. O. Sawyer 1978-6-19 3256 Siskiyou Marble Mountain Wilderness Area; along trail in Bug Gulch 1524 Comment
  RSA238714  Antennaria umbrinella Frederick W. Oettinger 1968-8-5 402 -a Siskiyou Mount Hemlock Forest, Shasta Ridge, between Diamond Lake and English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  RSA371501  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-7-2 363 Siskiyou Gazelle-Callahan Road, 2.5 miles NE of Hwy. 3. 1052 Comment
  HSC61204  Apocynum androsaemifolium Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  UC196342  Apocynum androsaemifolium A. A. Heller 1914-8-25 11703 Siskiyou along R.R. embankment near Deetz station opposite Black Butte 1158 Comment
  JEPS24019  Apocynum androsaemifolium Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6880 Siskiyou 16 mi above and nw Happy Camp (Happy Camp - Takilma road, in drainage of Indian Creek); Siskiyou Mts., drainage of Indian Creek 1097 Comment
  CAS-BOT-BC394981  Aquilegia formosa John Thomas Howell 1939-8-3 15022 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC637157  Aquilegia formosa Edward Lee 1934-8-11 1038 Siskiyou Walker Creek; a tributary of the Klamath River 609 Comment
  UCR47856  Aquilegia formosa 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
  CAS-BOT-BC397946  Aquilegia formosa Gilbert J. Muth 1969-8-6 1243 Siskiyou Boulder Peak Ridge Gap Meadow Comment
  HSC28661  Aquilegia formosa var. truncata Frederick W. Oettinger 1968-8-6 422 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  UC375285  Arabis Geo. D. Butler 1910-7-3 1635 Siskiyou Goosenest foothills Goosenest 1219 Comment
  UC1299659  Arabis Freed W. Hoffman 1951-7-15 4056 Siskiyou on w side Kelsey Creek (w Siskiyou County); Marble Mountains, Hammond Camp 1524 Comment
  HSC90577  Arabis holboellii var. retrofracta Jennifer Whipple 1976-7-8 1365 Siskiyou Klamath Mtns.: N to NE facing steep granite bluff above Dobkins Lake 2317 Comment
  HSC90274  Arabis oregana D. L. Goforth 1980-6-27 645 Siskiyou Scott River, S of Deep Creek 732 Comment
  UC1980203  Arabis oregana Curtis R. Bjork 2000-5-21 5334 Siskiyou Siskyou Co.: Klamath / Siskyou Bioregion. Klamath National Forest. Shortly upslope from Walker Road. 15 miles NWN of Yreka on slopes above the south bank of the Klamath River. Comment
  HSC39296  Arabis subpinnatifida J. O. Sawyer 1970-4-3 2096 Siskiyou Along Sugar Creek 915 Comment
  HSC46181  Arabis subpinnatifida Jennifer Whipple 1977-4-30 1881 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  HSC68419  Arabis subpinnatifida Maralyn A. Renner 1980-6-9 854 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  UC375282  Arabis subpinnatifida Geo. D. Butler Apr 8 1909-May 2 1909 587 Siskiyou near Yreka Comment
  UC1001157  Arabis subpinnatifida Dorothy Parker 1947-5-30 167 Siskiyou e side Scotts Valley; Siskiyou Mountains 865 Comment
  HSC90610  Arabis suffrutescens Jennifer Whipple 1976-6-17 1020 Siskiyou N face of Mount Eddy 2134 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
  SEINET3239876  Arceuthobium californicum R. L. Mathiasen 2010-1 1016 Siskiyou 17.4 km from Rte. 96 on Dillon Mtn. rd. 1310 Comment
  SEINET8530038  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-7-27 2003 -42 Siskiyou 1.2 km NW of Ahlgren Cabin on Garden Gulch Trail 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
  SEINET11989680  Arctostaphylos klamathensis Unknown 1982-1 20800 Siskiyou above middle Cliff Lake (& between Terrace Lake & Upper Cliff Lake on cliffs) 1951 Comment
  SEINET11990950  Arctostaphylos klamathensis Unknown 1983-1 4886 Siskiyou Terrace Lake 1881 Comment
  JEPS82470  Arctostaphylos nevadensis Gilbert Muth 1966-7-8 372 Siskiyou Marble Valley Meadow Marble Mt. Wilderness Area 1792 Comment
  RSA789812  Arctostaphylos nevadensis Rebecca Wenk 2008-7-25 942 Siskiyou Lily Pad Lake, just west of Kangaroo Lake, south of the Gazelle-Callaha Rd. 1799 Comment
  UC154199  Arctostaphylos nevadensis Harley P. Chandler June 1901 1598 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  CAS-BOT-BC46453  Arctostaphylos patula C. Hart Merriam 1919-10-18 s.n. Siskiyou Baird Fish Hatchery, McCloud River. Comment
  CAS-BOT-BC46496  Arctostaphylos patula Wayne Roderick; Jacob Sigg 1981-8-23 s.n. Siskiyou Cedar Lake. 1767 Comment
  HSC744  Arctostaphylos patula William J. Ferlatte 1967-6-29 579 Siskiyou Dorleska Summit 2134 Comment
  UCSB16362  Arctostaphylos patula Breedlove, Dennis 1962-6-10 Siskiyou Southwest slope of Little Greyback Mountain along Indian Creek Road from O'Brien to Happy Camp, 20.7 miles northwest of Happy Camp; Siskiyou Mountains 1554 Comment
  SEINET11989685  Arctostaphylos patula subsp. patula R. Raiche, Radnik, K. 1982-1 20779 Siskiyou Humbug Rd near Yreka 914 Comment
  UC82981  Arctostaphylos viscida subsp. viscida Dr. E. B. Copeland 1903-7-14 3519 Siskiyou Klamathon Comment
  UC609322  Arenaria congesta var. crassula Eleanor Burks Hart 1938-8-18 905 Siskiyou Upper Wright Lake Upper Wright Lake (Dry ridge above) 2316 Comment
  UC454233  Arenaria congesta var. suffrutescens I. J. Condit 1911-7-28 Siskiyou Castle Lake 1981 Comment
  UC682097  Arnica cernua G. L. Stebbins Jr. with A. A. Beetle 1942-6-1 3271 Siskiyou 17 mi n of, mountain ridge above Indian Creek Happy Camp; Indian Creek 1249 Comment
  UC166178  Arnica cordifolia Geo. D. Butler 1910-4-21 1216 Siskiyou Oro Fino Comment
  HSC22129  Arnica cordifolia J. O. Sawyer 1969-7-9 1236 Siskiyou Steep hillside above S Sugar Lake 2134 Comment
  RSA237480  Arnica cordifolia Frederick W. Oettinger 1969-7-16 1038 Siskiyou SSW of Abbott's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  SEINET11837690  Arnica cordifolia H. P. Chandler 1901-1 1615 Siskiyou near Marble Mountain 2134 Comment
  UC165318  Arnica discoidea Geo. D. Butler 1908-8-26 322 Siskiyou Old trail between Taylor and Cow Creeks Comment
  HSC62618  Arnica diversifolia Al Hobart 1967-8-17 Siskiyou Young's Valley Comment
  UC166160  Arnica lanceolata subsp. prima Geo. D. Butler 1910-7-7 1656 Siskiyou Shackleford Creek Comment
  UCSB13057  Arnica latifolia Dearing, Hugh; Dearing, Margaret 1939-7-1 Siskiyou West of Etna on Etna Creek 1219 Comment
  CAS-BOT-BC82670  Arnica latifolia C. R. Quick 1950-6-21 50 -05 Siskiyou Upper Hungry Creek drainage, west of Hilt and east of Beaver Creek Comment
  CHSC69068  Arnica longifolia Vernon H. Oswald; Lowell Ahart 1997-7-28 8790 Siskiyou Southeast of Medicine Lake at Paynes Springs. 1981 Comment
  UCD77355  Arnica longifolia Robert E. Preston 2001-8-26 1759 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, 1877 Comment
  HSC22149  Arnica mollis J. O. Sawyer 1969-8-4 1809 Siskiyou Above Sugar Lake 2134 Comment
  UC166159  Arnica mollis Geo. D. Butler 1910-7-13 1773 Siskiyou Shackleford Creek 1219 Comment
  UCD129170  Arnica mollis J. M. Tucker 1974-7-28 4322 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  UC1408811  Arnica parryi Frederick W. Oettinger 1969-7-28 1087 Siskiyou Tom's Upper Pond (above) Marble Mountain Wilderness Area, English Peak, The Salmon Mo 2026 Comment
  UC1483477  Arnica viscosa Maralyn A. Renner 1980-9-1 2697 Siskiyou Devil's Punchbowl Preston Peak Quad., Klamath National Forest 1828 Comment
  UC444336  Arnica viscosa W. L. Jepson and N. B. Greene 1894-1 45941 Siskiyou Mt. Shasta Comment
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Jan 18 2009
  JEPS82415  Artemisia arbuscula Gilbert Muth 1966-8-7 504 Siskiyou ridge, Lookout Trail; Marble Mountain Wilderness Area 2057 Comment
  CAS-BOT-BC90483  Artemisia douglasiana Alice Eastwood 1917-9-2 6671 Siskiyou Shasta Springs Comment
  UC710446  Artemisia ludoviciana subsp. incompta John Thomas Howell 15146 Siskiyou Marble Mts., Black Mt. Comment
  RSA184691  Artemisia ludoviciana subsp. incompta Gilbert Muth 1966-7-31 472 Siskiyou North side of Black mountain, Marble Mountains. 2012 Comment
  HSC85901  Aruncus dioicus var. acuminatus Barry Silver 1986-5-26 658 Siskiyou Elk Creek Rd., 11 mi. S of Happy Camp, base of bridge 7-1949 Comment
  CAS-BOT-BC447716  Aruncus dioicus var. vulgaris Doris K. Kildale 1928-8-18 6425 Siskiyou North Fork Salmon River at Finley Camp Comment
  HSC48291  Asarum caudatum J. O. Sawyer, K. T. Stillman 1978-7-6 3294 Siskiyou Along Happy Camp - O'Brien Rd., above Louse Creek. Comment
  HSC69541  Asarum caudatum Maralyn A. Renner 1980-8-6 2247 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  CAS-BOT-BC400598  Asarum caudatum Wm. Bridge Cooke 1942-6-7 16008 Siskiyou Along Wagon Creek, near Mt. Shasta City Comment
  CAS-BOT-BC400696  Asarum hartwegii Doris K. Kildale 1929-5-26 9195 Siskiyou Hawkins Bar on Salmon River 609 Comment
  SEINET10580356  Asclepias cordifolia F. Marion Ownbey, Fred G. Meyer 1940-7-6 Ownbey 2202 Siskiyou Marble Mountain, Cayene Ridge, S slopes Comment
  POM130031  Asclepias fascicularis E. B. Copeland 1903-7-4 3558 Siskiyou Klamathon Comment
  CDA39832  Asclepias speciosa Gordon Leppig, T. LaBanca 1998-7-11 925 Siskiyou French Creek Road. Comment
  SEINET10913619  Asclepias speciosa K. Bridwell 1978-7-5 Bridwell 164 Siskiyou Along county dirt road between the Tablelands and Mahogany Ridge, ca 18 mi S of Klamath Falls, Ore., and 3 mi NE of Dorris, Calif. 1244 Comment
  CAS-BOT-BC69559  Aspidotis densa L. E. Smith 1913-7-12 476 Siskiyou Mt. Eddy. Comment
  UC1478239  Aspidotis densa Nancy Morin with J. Richards 1981-7-18 307 Siskiyou Little Castle Lake Comment
  UC185224  Aspidotis densa Geo. D. Butler 1910-7-8 1670 Siskiyou Shackelford Creek Comment
  CDA10214  Aster alpigenus Gordon Leppig, J. Kalt 1996-7-9 369 Siskiyou Northern California Peatlands; Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, in cirque west of Little Duck Lake. Comment
  SEINET7545236  Aster copelandii E. B. Copeland 1903-1 CFBaker 3867 Siskiyou Mt. Eddy, Pacific Coast 2743 Comment
  CAS-BOT-BC178804  Astragalus californicus T. Howell 1889-5-12 s.n. Siskiyou Hornbrook Comment
  RSA0006721  Astragalus californicus R. C. Barneby 1954-5-16 11510 Siskiyou Klamath River canyon 1-1/2 iles below Klamath River Post Office. 473 Comment
  RSA109721  Astragalus californicus R. C. Barneby 1954-5-15 11499 Siskiyou open volcanic hillside among rabbit brush, NE of Weed. 1387 Comment
  JEPS94893  Astragalus curvicarpus var. curvicarpus Vernon H. Oswald and Lowell Ahart 1998-6-11 9183 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
  CDA26674  Astragalus gambelianus G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2776 Siskiyou Yreka. West of Motel 6, south of town, north of Greenhorn Creek Road. 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
  RSA90176  Astragalus lentiginosus var. salinus F. W. Peirson 1923-7-19 3602 Siskiyou From Lairds Landing to Bray. Comment
  CAS-BOT-BC192916  Astragalus purshii var. lectulus Copeland 1903-7-6 3557 Siskiyou Hornbrook Comment
  UCD105227  Astragalus purshii var. lectulus W. R. Hildreth 1971-8-4 s.n. Siskiyou Summit of Marble Mountain. Comment
  HSC71338  Astragalus purshii var. purshii J. P. Smith 1976-5-21 8759 Siskiyou Along FS Rd. 40N08, 1 mi. from its junction with Hwy. 3, Klamath National Forest 1646 Comment
  UC164061  Astragalus purshii var. tinctus Geo. D. Butler 1909-5-8 708 Siskiyou dry hills near Yreka; near Yreka Comment
  CAS-BOT-BC193063  Astragalus purshii var. tinctus R. C. Barneby 1954-5-16 11518 a Siskiyou Scott Bar 548 Comment
  HSC71340  Astragalus whitneyi var. siskiyouensis J. P. Smith 1974-5-26 7384 Siskiyou Along FS Rd. 47N03 1524 Comment
  SEINET3165921  Astragalus whitneyi var. siskiyouensis R. W. Spellenberg 2006-6-19 13741 Siskiyou along USFS access road 4.3 km E of Claif. Hwy. 139, the jct of road and highway 31 km SE of Modoc Co. line (Just S of Adin) Comment
  HSC81988  Astragalus whitneyi var. siskiyouensis Thomas W. Nelson, Jane P. Nelson 1979-6-16 4868 Siskiyou Along Hwy. 3, 2.2 mi. N of Scott Mtn. Summit 1341 Comment
  HSC65569  Asyneuma prenanthoides R. White 1977-7-21 122 Siskiyou Slope below outlet of Raspberry Lake. 1512 Comment
  CAS-BOT-BC69536  Athyrium alpestre subsp. americanum W. B. C. 1938-9-8 11617 Siskiyou Panther Creek Glacial Meadow, Mount Shasta. 2590 Comment
  UC371154  Athyrium distentifolium var. americanum G. D. Butler 1909-7-15 876 Siskiyou Highland Mine Comment
  UCD78116  Athyrium filix-femina var. californicum Robert E. Preston 2001-6-30 1630 Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 1694 Comment
  CAS-BOT-BC17616  Athysanus pusillus Roxana S. Ferris; Laura Lorraine 1948-6-12 11856 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1417 Comment
  POM94678  Athysanus pusillus Geo. D. Butler 1910-3-27 1145 Siskiyou Near Yreka. Comment
  CHSC72231  Atriplex heterosperma Vernon H. Oswald; Lowell Ahart 1998-9-16 9649 Siskiyou Tour Route at Lower Klamanth NWR 3 mi south of Hwy. 161. 1243 Comment
  CAS-BOT-BC106544  Balsamorhiza deltoidea J. H. Thomas 1954-5-14 4183 Siskiyou Salmon Muontains, Klamath National Forest. Near South Fork of Salmon river, 5 to 9 miles southeast of Cecilville, 1219 Comment
  POM350743  Balsamorhiza terebinthacea M. A. Baker 1977-5-22 327 Siskiyou One mile west of Hwy 3 on moist south-facing bank of road to Little Duck Lake and Sugar Lake. Comment
  UC1037383  Beckmannia syzigachne Douglas Barbe 1955-7-5 107 Siskiyou Greenview Klamath Mountains (e limit, on road to Fort Jones) 883 Comment
  RSA331954  Berberis aquifolium var. aquifolium Dave Kelly, Walter Wisura 1985-7-31 4082 Siskiyou 9.1 mi. SW of Gazelle on Callahan Rd. Comment
  CAS-BOT-BC75719  Berberis nervosa H. A. Thomas; J. H. Thomas 1954-7-23 4477 Siskiyou Salmon-Trinity Mountains. About 6 miles southeast of Cecilville. Vicinity of Blind Horse Creek. 1036 Comment
  CAS-BOT-BC75935  Berberis piperiana Geo. D. Butler 1910-4-11 1169 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC75940  Berberis piperiana P. C. Everett; E. K. Balls 1959-10-23 23938 Siskiyou 5.4 miles northwest from Trinity-Siskiyou county line, road from Trinity Center to Callaban [Callahan?]. 1584 Comment
  UC1192188  Bidens cernua Verne Grant and Irving Schneider 1947-8-26 8295 Siskiyou irrigation ditch w of Tule Lake Comment
  CAS-BOT-BC413075  Bistorta bistortoides D. E. Breedlove 1962-6-11 3370 Siskiyou Along State Hwy. 89, 17.6 miles east of McCloud; Cascade Mountains 1219 Comment
  CAS-BOT-BC413077  Bistorta bistortoides H. A. Thomas; J. H. Thomas 1954-7-24 4496 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  HSC19291  Bistorta bistortoides J. O. Sawyer 1969-7-12 1344 Siskiyou Edge of Sugar Lake 1799 Comment
  SEINET4176349  Bistorta bistortoides D. Butler 1910-6-5 1477 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC127946  Blepharipappus scaber Geo. D. Butler 1909-5-10 697 Siskiyou Yreka Comment
  CHSC36146  Blepharipappus scaber K. Bridwell; D. Bateman 1978-7-6 170 Siskiyou N slope of Sheep Mountain, ca. 10 mi e of Macdoel. 1645 Comment
  CAS-BOT-BC15797  Boechera acutina Alice Eastwood 1912-8-30 1963 Siskiyou Mount Eddy. Comment
  UC673145  Boechera breweri Lincoln Constance and Reed C. Rollins 1942-5-13 2902 Siskiyou 8 mi s Happy Camp (near Clear Creek); Klamath-Siskiyou Region, Klamath River 304 Comment
  CAS-BOT-BC16016  Boechera breweri subsp. breweri R. C. Barneby 1954-5-16 11505 Siskiyou Klamath River Canyon 9 miles upstream from Klamath River Post Office. 609 Comment
  CAS-BOT-BC13814  Boechera howellii Vesta Holt 1943-8-13 M- 15 Siskiyou Marble Mountains. Comment
  CHSC470  Boechera lyallii V. Holt 1942-8-6 Siskiyou Caribou Lake, Trinity Alps. 2133 Comment
  JEPS82521  Boechera lyallii Gilbert Muth 1966-8-3 493 Siskiyou Marble Valley Marble Mountain Wilderness Area 1792 Comment
  CAS-BOT-BC540349  Boechera paupercula Dana York 2012-7-20 3118 Siskiyou Siskiyou Mountains: Klamath National Forest, Red Buttes Wilderness, 430 m SSW of Red Butte along a ridge 1950 Comment
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Aug 6 2017
  CAS-BOT-BC14271  Boechera pinetorum C. L. Hitchcock; J. S. Martin 1939-7-9 5308 Siskiyou North side of Black Mountain near Marble Mountain (King's Castle). 2072 Comment
  UC1483443  Boechera platysperma J. Sawyer and J. Cole 1980-7-20 3783 Siskiyou s of Grouse Hill (at n base of Badger Peak); Klamath National Forest, Medicine Lake Quad., Badger Peak 2145 Comment
  CAS-BOT-BC14536  Boechera puberula A. A. Heller 1920-7-9 13434 Siskiyou Long bare easterly slope of Mount Eddy. 2438 Comment
  CAS-BOT-BC25420  Boechera retrofracta Doris K. Kildale 1929-4-27 7855 Siskiyou Upper South Fork of Salmon River. Cecilville. Comment
  UC165313  Boechera retrofracta Geo. D. Butler 1910-5-10 1331 Siskiyou Goosenest foothills Comment
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Jan 23 2011
  UC673142  Boechera retrofracta Lincoln Constance and Reed C. Rollins 1942-5-13 2917 Siskiyou 1Scott River 0 mi southwest of Scott Bar; Klamath-Siskiyou Region. 609 Comment
  UC165992  Boechera subpinnatifida Geo. D. Butler 1909-4-25 610 Siskiyou Quartz Valley Comment
  CAS-BOT-BC25866  Boechera subpinnatifida Dorothy Parker 1947-3-30 164 Siskiyou East side of Scott Valley near Harstrand Gulch. 868 Comment
  CAS-BOT-BC25937  Boechera suffrutescens Ira L. Wiggins 1955-7-27 13534 Siskiyou Salmon-Trinity Alps Primitive Area. Caribou Lake. 2042 Comment
  CAS-BOT-BC418464  Boykinia major John Thomas Howell 1937-7-25 13464 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CHSC1632  Boykinia major M. Yoder 1941-7-6 Siskiyou Castle Lake. 1981 Comment
  JEPS25843  Boykinia major Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7468 Siskiyou at edge Twin Valley meadows (about 13 mi nw of Happy Camp); Siskiyou Mountains 1524 Comment
  HSC69437  Boykinia major John Palmer 1980-8-13 793 Siskiyou Dead Cow Creek near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  CAS-BOT-BC172821  Brickellia grandiflora J. K. Nelson; J. R. Nelson; Soren Nelson 2004-8-29 2004 -096 Siskiyou South side Mt. Shasta, south side of McKenzie Butte, along Road 31 1584 Comment
  JEPS16950  Brickellia greenei Peter H. Raven 1956-9-5 10462 Siskiyou Fork of the Sacramento River 1828 Comment
  OBI55536  Brickellia greenei David J. Keil 1992-7-24 23562 Siskiyou Klamath Natl forest E of Callahan. 2.5 mi N of Kangaroo Lake on Rail Crk rd Comment
  CAS-BOT-BC482218  Brodiaea coronaria var. coronaria Margaret M. Hanna 1958-6-20 s.n. Siskiyou Along highway, 6 miles south of Dunsmuir Comment
  UC164282  Brodiaea elegans subsp. elegans Geo. D. Butler 1910-5-29 1421 Siskiyou meadow near Yreka Comment
  HSC44873  Brodiaea elegans subsp. elegans J. P. Smith, Steve Selva 1970-6-14 3869 Siskiyou Comment
  CAS-BOT-BC144105  Bromus Ira L. Wiggins 1950-5-27 12354 Siskiyou Banks of east fork of Scott River, at Callahan Ranger Station, Callahan. 975 Comment
  CAS-BOT-BC149053  Bromus carinatus var. carinatus Gilbert Muth 1966-7-17 409 Siskiyou Marble Mountains. Trail to Lookout, on ridge. 2042 Comment
  UC1130981  Bromus carinatus var. carinatus H. S. Yates 1936-6-21 5832 Siskiyou 1 mi w of Signal Butte 1341 Comment
  UCD59216  Bromus carinatus var. marginatus R. Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road from Happy Camp to O'Brien, Oregon. Comment
  CDA15578  Bromus japonicus G. F. Hrusa 1998-7-5 14685 Siskiyou Siskiyou Mountains; S side of pass on Happy Camp-O'Brien Rd. Ca. side of State Boundary, above Indian Ck. Camp. Gravelly, +- compacted pullout along side rd. Dense colony, not seen elsewhere in local area. Annual. Comment
  RSA603018  Bromus japonicus L. C. Wheeler 1935-7-13 3661 Siskiyou Ager Comment
  UCD146710  Bromus japonicus G. F. Hrusa 1998-7-5 14685 Siskiyou south side of pass on Happy Camp-O' Brien Road around side of State Boundary, above Indian Creek Camp. 750 Comment
  RSA14320  Bromus marginatus Elmer I. Applegate 1923-8-20 3908 Siskiyou Medicine Lake 1982 Comment
  RSA238370  Bromus marginatus Frederick W. Oettinger 1969-9-4 1628 Siskiyou East side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UC1265363  Bromus suksdorfii F. W. Oettinger 1969-9-2 1588 Siskiyou above Bear Meadow (near Tom Taylor Cabin, Salmon Mountains); Salmon Mountains 2026 Comment
  HSC100204  Bromus tectorum J. P. Smith, , J. O. Sawyer, & R. J. Cole 2011-5-22 13178 Siskiyou Matthews Campground on the Cecilville to Forks of Salmon Road. 640 Comment
  CAS-BOT-BC185379  Bromus vulgaris Gilbert Muth 1966-7-29 460 Siskiyou Marble Mountains. Marble Valley, by waterfall. 1798 Comment
  HSC65360  Cacaliopsis nardosmia Rich White 1978-7-3 215 Siskiyou Saddle in Spur Ridge between Dillon Trail and 5759 1662 Comment
  CAS-BOT-BC273225  Cacaliopsis nardosmia Marion Ownbey; S. J. Preece, Jr. 1952-6-25 s.n. Siskiyou Along ridge road to Deadwood Lookout, mountains west of Yreka Comment
  HSC27333  Calamagrostis koelerioides J. P. Smith, J. O. Sawyer, M. O'Mera 1972-7-3 5711 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  UC1108541  Calamagrostis koelerioides Ira L. Wiggins 1955-7-27 13558 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  UCD57255  Calamagrostis koelerioides A. H. Murphy 1955-7-28 55 H Siskiyou Klamath National Forest, Marble Mountains, Hancock Lake. 1889 Comment
  UCD57318  Calamagrostis koelerioides A. H. Murphy 1956-8-16 56 U Siskiyou Klamath Natioal Forest, east end Big Marshy Meadow. 1828 Comment
  CAS-BOT-BC185256  Calamagrostis koelerioides W. R. Dudley 1901-8-23 s.n. Siskiyou Slope and top of Foxtail Ridge. Comment
  CAS-BOT-BC185090  Calamagrostis purpurascens H. R. Saxton; R. N. Canfield 1922-8-21 33 Siskiyou Klamath Forest. Parker Flat. Comment
  SJSU11316  Calamagrostis rubescens S. H. Casey 1981-7-4 1209 Siskiyou near Cook & Green Pass, Seiad Creek Rd c. 6 mi N of Seiad Valley 1706 Comment
  OBI55418  Calocedrus decurrens David J. Keil 1992-7-20 23512 Siskiyou Etna 1000 Comment
  RSA68949  Calochortus coeruleus A. E. Culbertson 1943-6-19 9 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mtns., 2000 above Sacramento R. within 10 air miles of its headwaters to the west. 1657 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-BC488610  Calochortus elegans var. nanus L. E. Smith 1914-6-9 713 Siskiyou Sisson Comment
  JEPS77489  Calochortus nudus Susan Horner 1978-1 421 Siskiyou 1 mi s Sheepheaven Spring (private meadow along Sheepheaven Creek, about 4.5 mi n of Bartle); Sheepheaven Creek 1402 Comment
  CAS-BOT-BC132457  Calochortus persistens Marion Ownbey; S. J. Preece, Jr. 1952-6-25 3341 Siskiyou Ridge road to Deadwood Lookout, mountains west of Yreka Comment
  SEINET8339365  Calochortus persistens Frank Callahan 2007-6-18 Siskiyou Little Cottonwood Peak; ca. 13 miles south of the Oregon State Line. 1500 Comment
  JEPS80557  Calochortus tolmiei Gilbert Muth 1965-8-6 189 Siskiyou backside Black Mountain; Marble Mountain Wilderness Area 2072 Comment
  CAS-BOT-BC181514  Caltha leptosepala H. A. Thomas; J. H. Thomas 1954-7-24 4498 Siskiyou Vicinity of Rush Lake and Rush Creek Meadow, about 9 miles E of Cecilville, Salmon - Trinity Mts. 1981 Comment
  UC635369  Calyptridium monospermum D. Tebbe 1929-6-7 154 Siskiyou Mount Eddy Comment
  HSC646  Calystegia malacophylla William J. Ferlatte Jul 1967 616 Siskiyou Along the Yellow Rose Mine Trail 1677 Comment
  UC796446  Camissonia contorta Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11757 Siskiyou French Creek Loggind Rd w Callahan 1066 Comment
  CAS-BOT-BC160903  Camissonia tanacetifolia subsp. tanacetifolia Peter H. Raven 1962-5-30 17900 Siskiyou U. S. Highway 97, 14 miles south of Macdoel Comment
  SD104864  Campanula prenanthoides Darley F. Howe 1979-6-25 Siskiyou 7.0 miles southeast of Domes Bar. Comment
  SEINET10462857  Campanula prenanthoides Butler 1910-8-7 BUTLER 1815 Siskiyou HUMBUG MOUNTAIN 4000 Comment
  SEINET10463152  Campanula prenanthoides Wolf 1927-8-26 WOLF 1064 Siskiyou On the Klamath River, 8 miles above Hamburg Comment
  SEINET10463161  Campanula prenanthoides Cyrus G. Pringle 1881-8-16 Pringle s.n. Siskiyou Comment
  SEINET10840346  Campanula prenanthoides Alice Eastwood 1912-7-21 Eastwood 1275 Siskiyou Sisson Comment
  SEINET10905915  Campanula prenanthoides Lathrop 1903-7-10 LATHROP s.n. Siskiyou SHASTA RETREAT Comment
  RSA22036  Campanula rotundifolia J. T. Howell 1939-8-4 15046 Siskiyou Marble Rim, Marble Mts 1890 Comment
  CAS-BOT-BC266455  Campanula scabrella A. A. Heller 1920-7-9 13428 Siskiyou Mount Eddy 2438 Comment
  UC890573  Campanula scabrella Alice Eastwood 1912-8-30 2010 Siskiyou Mount Eddy Comment
  SEINET10463380  Campanula scabrella A. Arthur Heller 1920-7-9 Heller 13428 Siskiyou MT. EDDY, HIGH UP IN GRAVEL ON THE LONG BARE EASTERN SLOPE 2438 Comment
  SEINET10463385  Campanula scabrella Menzies 1962-7-21 MENZIES s.n. Siskiyou Mount Eddy 2530 Comment
  RSA456190  Campanula scouleri L. C. Wheeler 1934-6-7 2648 Siskiyou Hungry Creek Lookout. 1502 Comment
  SEINET10463766  Campanula scouleri Overton 1979-8-6 OVERTON 12918 Siskiyou Near Sutcliffe Creek, on the Presto Peak quadrangle, close to the town of Happy Camp, streamside, Evergreen Conifer forest. 1158 Comment
  SEINET10872983  Campanula scouleri A. Arthur Heller 1914-8-25 Heller s.n. Siskiyou Deetz Station near Black Butte 1158 Comment
  SEINET10905942  Campanula scouleri Holt 1932-7-13 Holt s.n. Siskiyou NIXON'S CAMP, MT. SHASTA 671 Comment
  SEINET10972077  Campanula scouleri Hemphill 1970-8-11 HEMPHILL s.n. Siskiyou SANGER LAKE MONTANE FOREST 1524 Comment
  CAS-BOT-BC266457  Campanula wilkinsiana Allen Barbour 1961-8-1 s.n. Siskiyou Near Upper Caribou Lake, Trinity Alps Comment
  CAS-BOT-BC266460  Campanula wilkinsiana Alice Eastwood 1912-9-1 2063 Siskiyou 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
  HSC78220  Capsella bursa-pastoris L. P. Janeway 1983-8-28 648 Siskiyou Poker Flat 1529 Comment
  HSC86543  Cardamine bellidifolia D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta, slope of Red Butte 2134 Comment
  UC618905  Cardamine bellidifolia var. pachyphylla Reed Rollins 1938-9-8 11647 Siskiyou n slope Red Butte (Mount Shasta); , n slope Red Butte Comment
  CAS-BOT-BC37312  Cardamine breweri Alice Eastwood 1923-5-18 11838 Siskiyou Shasta Springs. Comment
  HSC29188  Cardamine californica Frederick W. Oettinger 1967-7-26 184 Siskiyou Marble Mtn. Wilderness Area, just below Tom Taylor Cabin spring 2049 Comment
  POM95829  Cardamine californica var. integrifolia Geo. D. Butler 1909-4-11 649 Siskiyou Shasta Springs. Comment
  CDA38722  Carduus acanthoides Tanya Chapple 2012-7-26 PDR# 470 P06027587 Siskiyou Dillon watershed, west of Dillon Mountain. Comment
  CAS-BOT-BC19765  Carex abrupta John Thomas Howell 1939-8-9 15192 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  CAS-BOT-BC19772  Carex abrupta K. T. Stillman 1976-7-15 257 Siskiyou Marble Mountain Wilderness Area. 1950 Comment
  HSC36252  Carex abrupta J. O. Sawyer 1969-7-24 1346 Siskiyou Edge of Sugar Lake 1784 Comment
  RSA237241  Carex abrupta Frederick W. Oettinger 1969-8-22 1505 Siskiyou Sandy bed of dry inlet into Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1982 Comment
  SEINET7548183 Image available Carex abrupta Frederick W. Oettinger 1969-9-1 1577 Siskiyou High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness area, sandy margin of Katherine Lake. 2027 Comment
  CAS-BOT-BC17857  Carex amplifolia A. A. Heller 1905-6-5 7982 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  HSC76857  Carex amplifolia L. P. Janeway 1982-8-2 101 Siskiyou Near headwaters of Coon Run, 3 mi. up FS 18N30 from S fork Indian Creek, 100 m below road 854 Comment
  CAS-BOT-BC17964  Carex angustata W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow near Sissons. Comment
  HSC61818  Carex aquatilis Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC17993  Carex aquatilis W. J. Ferlatte 1966-8-3 278 Siskiyou Josepine Lake Basin. 1920 Comment
  CAS-BOT-BC18133  Carex athrostachya George Dexter Butler 1909-6-22 854 Siskiyou Goosenest Foothills. Comment
  CHSC88397  Carex athrostachya Jenny Marr 1993-7-1 156 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CHSC40185  Carex bolanderi L. P. Janeway 1982-8-21 168 Siskiyou SE-facing slope near a trickly-creeklet in Twin Valley. 1584 Comment
  CAS-BOT-BC19659  Carex brainerdii John Thomas Howell 1937-7-26 13555 Siskiyou Caribou Gulch. Comment
  CAS-BOT-BC19654  Carex brainerdii L. P. Janeway 1983-6-25 336 Siskiyou Ca. 0.5 mile north of West Branch USFS Station. 670 Comment
  CAS-BOT-BC34162  Carex breweri A. A. Heller 1922-7-3 13679 Siskiyou On Mt. Eddy above Wagon Creek. 2560 Comment
  HSC81983  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1979-6-16 4855 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  HSC48951  Carex concinnoides M. A. Baker 1979-5-17 728 Siskiyou S facing hillside near road to Bald Mtn. trail off FS 15N01 Comment
  HSC96590  Carex echinata subsp. echinata Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-19 478 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  CAS-BOT-BC20131  Carex feta H. M. Hall; E. B. Babcock 1903-6-1 4061 Siskiyou Sierra Nevada Mountains. Mount Shasta. Sisson. 1066 Comment
  CHSC107148  Carex feta R. E. Brainerd 2009-7-22 1555 Siskiyou Red Hill Meadow, east of Mt. Shasta; 4 air miles east of McCloud. UTM Zone 10 478466E 4568630N. 1036 Comment
  HSC97426  Carex feta Gail Newton 1980-6-20 461 Siskiyou Near Bald Mtn. 1097 Comment
  UC195513  Carex feta Geo. D. Butler 1910-7-15 1785 Siskiyou Oro Fino Comment
  CAS-BOT-BC20745  Carex fracta William Bridge Cooke 1938-8-19 11524 Siskiyou Mt. Shasta. Lower Bear Spring. 1524 Comment
  HSC38961  Carex fracta J. O. Sawyer 1969-8-1 1618 Siskiyou On trail to Eaton Lakes. 1799 Comment
  RSA14333  Carex halliana Elmer I. Applegate 1923-8-18 s.n. Siskiyou Hoffman Mtn, Medicine Lake Comment
  UC1576728  Carex halliana Dean Wm. Taylor, Glenn L. Clifton, Rexford E. Palmer 1987-8-9 9269 Siskiyou on floor of Alcohol Crater Medicine Lake area 2072 Comment
  CHSC116454  Carex hassei Julie Kierstead Nelson; Martin Lenz 2014-7-3 2014 -071 Siskiyou Headwaters of South fork Sacramento river; N edge of meadow off FS Road 40N26. 1828 Comment
  HSC68516  Carex hassei Maralyn A. Renner 1980-6-26 1172 Siskiyou Flint Valley. 1390 Comment
  CAS-BOT-BC7553  Carex infirminervia John Thomas Howell 1939-8-3 14989 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  UC837247  Carex inops subsp. inops L. E. Smith 1913-4-29 149 Siskiyou McCloud Comment
  CHSC96014  Carex integra L. P. Janeway 2006-7-3 8775 Siskiyou Klamath Ranges. Salmon Mountains; south side of upper Carter Meadows 0.5 km west of Carter Meadows Summit. 1798 Comment
  CAS-BOT-BC35522  Carex jonesii J. W. Stacey 1939-7-7 13617 Siskiyou In the Wagon Camp Sedge Swamp 1737 Comment
  HSC29636  Carex laeviculmis Frederick W. Oettinger, R. F. Thorne 1969-8-4 1179 Siskiyou Marble Mtn. Wilderness Area, N of Tobacco Lake 1890 Comment
  RSA724916  Carex lenticularis var. lipocarpa L. P. Janeway 2006-7-1 8716 Siskiyou Klamath Ranges, Salmon Mountains; Just west of Carter Meadow, north side of South Fork Salmon River. 1579 Comment
  HSC39300  Carex luzulina J. O. Sawyer 1969-7-18 1417 Siskiyou Head of S Russian Creek 1829 Comment
  UC1147831  Carex mariposana John Thomas Howell 1937-7-25 13488 Siskiyou Caribou Basin, Salmon- Trinity Alps 1981 Comment
  CAS-BOT-BC31837  Carex microptera John Thomas Howell 1937-7-22 13252 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CHSC107137  Carex microptera R. E. Brainerd 2009-7-22 1550 Siskiyou Trout Creek east of Mt. Shasta, 26 air miles east of Weed. UTM Zone 10 592966E 4588754N. 1493 Comment
  UC195518  Carex multicaulis Geo. D. Butler 1909-5-30 856 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC32013  Carex multicaulis R. E. Frenkel 1964-7-13 697 Siskiyou On Everitt Memorial Hwy near Mt. Shasta, 0.4 mi N of McCloud River RR crossing. 1176 Comment
  CHSC40194  Carex multicostata L. P. Janeway 1983-8-6 497 Siskiyou At Poker Flat. Dry w part of lower portion of meadow across the road. 1524 Comment
  HSC76651  Carex multicostata K. T. Stillman 1976-8-7 199 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  SEINET7568517 Image available Carex multicostata Frederick W. Oettinger, R. F. Thorne 1969-8-6 1244 Siskiyou High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, Pine Lake Meadows. 1844 Comment
  RSA237298  Carex nigricans Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1261 Siskiyou West of Tom s lower pond. Salmon Mountains. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  CHSC71507  Carex pellita Vernon H. Oswald; Lowell Ahart 1998-7-21 9353 Siskiyou Northeast of Weed and south of Macdoel in an area of marshes and wet meadow along Old State Highway on the west side of Bray. 1417 Comment
  HSC30554  Carex preslii Frederick W. Oettinger 1969-8-19 1465 Siskiyou Marble Mtn. Wilderness Area, Abbott's Basin 1860 Comment
  CHSC53659  Carex rossii L. P. Janeway; Gary Benson, Randy Harrison 1984-8-20 1056 A Siskiyou On cinder cone SW of Undertakers Camp. 2087 Comment
  CAS-BOT-BC118214  Carex rossii L. P. Janeway 1983-8-27 621 Siskiyou Preston Peak quad, Along the Twin Valley-Poker Flat trail. 1676 Comment
  HSC76835  Carex rostrata L. P. Janeway 1982-8-21 166 Siskiyou SE facing slope in Twin Valley 1524 Comment
  HSC30528  Carex scopulorum Frederick W. Oettinger 1969-8-19 1455 Siskiyou Marble Mtn. Wilderness Area, Abbott's Basin 1905 Comment
  RSA238965  Carex scopulorum Frederick W. Oettinger 1969-9-4 1649 Siskiyou Tobacco Lake. Salmon Mountains High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UCD63042  Carex scopulorum var. bracteosa Daniel Sanchez-Mata; Tomas Santamaria 2006-7-26 s.n. Siskiyou Weed. Rail Creek Road from Gazelle-Callahan Road. Kangaroo Lake. Kangaroo Lake Botanical Area. The Fen Trail. Scott Mountains, Klamath National Forest. 1850 Comment
  CHSC113781  Carex serratodens Peter F. Zika 2011-7-7 25546 Siskiyou W side of Route 3, 0.8 road miles N of Soap Creek Road, 3.5 air miles NW of Bally Mountain. Klamath Range (KR). 1000 Comment
  CAS-BOT-BC117689  Carex simulata Frank Walton Gould 1940-5-14 12325 Siskiyou Bull Meadows, Goosenest Mountain 1524 Comment
  CAS-BOT-BC117244  Carex spectabilis W. R. Dudley 1899-8-24 s.n. Siskiyou Meadow-Craggy Peak. Comment
  UC1190189  Carex spectabilis Ira L. Wiggins 1955-7-27 13549 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  UC1265455  Carex spectabilis Frederick W. Oettinger 1969-8-6 1254 Siskiyou New York Flumes, Pine Lake Basin Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  UC618819  Carex spectabilis J. W. Stacey 1938-9-8 11666 Siskiyou upper portion Squaw Creek Meadows (at Squaw and Panther Creeks and in The South Gate); Mount Shasta Comment
  HSC30523  Carex spectabilis Frederick W. Oettinger 1968-9-6 732 Siskiyou Marble Mtn. Wilderness Area, on trail SE of Tom's Lake 2012 Comment
  SEINET7575713 Image available Carex spectabilis Frederick W. Oettinger 1968-9-4 700 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness area, slope southeast of Abbotts Lake. 1722 Comment
  RSA105479  Carex stipata G. D. Barbe 1955-6-29 29 Siskiyou 1 mile east of Callahan 976 Comment
  CHSC98757  Carex straminiformis L. P. Janeway; B. Castro 2007-7-29 9140 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2054 Comment
  UC836013  Carex straminiformis John Thomas Howell 1939-8-2 14908 Siskiyou Spirit Lake Marble Mts. 1828 Comment
  CAS-BOT-BC115859  Carex subfusca Louis C. Wheeler 1934-6-22 2754 Siskiyou Cottonwood Creek. 914 Comment
  CAS-BOT-BC115852  Carex subfusca William Bridge Cooke 1940-8-8 15540 Siskiyou Along the upper Squaw Valley Creek in a meadow-like area fed by springs. 1737 Comment
  HSC30530  Carex subfusca Frederick W. Oettinger 1969-8-19 1464 Siskiyou Marble Mtn. Wilderness Area, between King David Peak and Abbotts Basin 1860 Comment
  HSC76832  Carex vesicaria L. P. Janeway 1982-8-15 149 Siskiyou W side of Echo Lake 1677 Comment
  RSA564999  Carex whitneyi D. W. Taylor, Glenn L. Clifton, R. E. Palmer 1987-6-7 9026 Siskiyou 0.7 miles west of Stud Hill. Modoc Plateau. 1646 Comment
  HSC737  Cassiope mertensiana subsp. ciliolata William J. Ferlatte 1967-7-25 733 Siskiyou Caribou Basin 1982 Comment
  CAS-BOT-BC248986  Castilleja David D. Keck 1938-8-8 4873 Siskiyou Siskiyou Co. at Trinity Co. line: Scott Mountain Divide, between Scott Mtn. and Craggy Peak 1675 Comment
  JEPS5215  Castilleja angustifolia Geo. D. Butler 1904-5-23 759 Siskiyou near Yreka Comment
  HSC67784  Castilleja applegatei J. O. Sawyer, J. Cole 1980-7-21 3832 Siskiyou N of FS Rd. 44N01 near intersection with road to Lava Camp. 1677 Comment
  SEINET11262566  Castilleja applegatei James P. Smith 1974-5-27 7610 Siskiyou Copco Quad. Along Forest Service Road 47NO3.; 0 1280 Comment
  HSC59942  Castilleja applegatei D. L. Goforth 1979-7-19 258 Siskiyou Trinity Alps Wild Area, Carbiou Lakes Basin 2134 Comment
  JEPS5212  Castilleja applegatei subsp. pinetorum Geo. D. Butler 1909-4-17 630 Siskiyou near Yreka Comment
  CAS-BOT-BC243751  Castilleja applegatei var. pinetorum Doris K. Kildale 1928-7-2 5394 Siskiyou Salmon Summit via Horn Creek Trail 1981 Comment
  CAS-BOT-BC243757  Castilleja applegatei var. pinetorum Geo. D. Butler 1910-5-1 1257 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC243760  Castilleja applegatei var. pinetorum Annie M. Alexander; Louise Kellogg 1949-7-22 5845 Siskiyou Top of ridge, trail to Kings Castle, Paradise Lake, Marble Mountains 1920 Comment
  CAS-BOT-BC243755  Castilleja applegatei var. pinetorum C. L. Hitchcock; J. S. Martin 1939-7-6 5229 Siskiyou Peak above and north of Divide of Siskiyou Mts., California on Takilma-Happy Camp Road 1828 Comment
  JEPS57209  Castilleja arachnoidea L. R. Heckard 1967-8-14 1730 Siskiyou above Horse Camp (sw flank of Mt. Shasta); Mt. Shasta 2560 Comment
  UC705753  Castilleja arachnoidea Marion Ownbey, Fred G. Meyer 1940-7-5 2180 Siskiyou e side Mt. Shasta (well below timber line) Comment
  HSC29387  Castilleja arachnoidea Frederick W. Oettinger 1968-8-4 393 Siskiyou Salmon Mts., Crapo Peak Ridge 2195 Comment
  RSA237566  Castilleja arachnoidea Frederick W. Oettinger 1968-8-4 393 Siskiyou Crapo Peak Ridge. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2195 Comment
  CHSC86634  Castilleja lacera Jenny Marr 1993-7-1 17 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC254013  Castilleja miniata A. A. Heller 1916-7-20 12473 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  UC1190141  Castilleja miniata Ira L. Wiggins 1955-7-27 13555 Siskiyou Caribou Lake; Salmon-Trinity Alps Primitive Area 2042 Comment
  UC651920  Castilleja miniata Hugh and Margaret Dearing 1939-7-2 3804 Siskiyou Salmon Mountain summit; Salmon Mountain Comment
  RSA0005952  Castilleja pinetorum var. fragilis E. B. Copeland 1903-8-14 3883 Siskiyou Sisson. Comment
  HSC76734  Castilleja pruinosa K. T. Stillman 1976-7-15 242 Siskiyou Marble Mountain Wilderness Area. 1951 Comment
  SBBG26802  Castilleja pruinosa L. Constance, R. C. Rollins 1942-5-14 2935 Siskiyou Shasta River 6 mi N of Yreka 762 Comment
  UC1037203  Castilleja pruinosa Leo Whitney 1934-6-17 1552 Siskiyou canyon side Mt. Shasta 2590 Comment
  CAS-BOT-BC241085  Castilleja schizotricha G. J. Muth 1969-8-6 1209 Siskiyou Boulder Peak 2529 Comment
  CAS-BOT-BC241087  Castilleja schizotricha John Thomas Howell 1939-8-4 15043 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  HSC58954  Castilleja schizotricha Gilbert Muth 1975-7-31 4469 Siskiyou Near Kangaroo Mtn., close to the town of Seiad Valley 1920 Comment
  RSA261373  Castilleja schizotricha J. M. Tucker, L. K. Mann 1963-8-18 3766 Siskiyou Saddle between Marble Mountain and SW ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area 2104 Comment
  CDA41391  Castilleja tenuis Vernon H. Oswald & Lowell Ahart 1998-6-11 9207 Siskiyou Dry Lake on the south side of Tennant Road, ca. 9 air miles east of Grass Lake, ca. 22 air miles northeast of Weed. Comment
  CAS-BOT-BC48648  Ceanothus cordulatus W. R. Dudley 1899-8-27 s.n. Siskiyou Sisson Comment
  CAS-BOT-BC48650  Ceanothus cordulatus A. A. Heller 1905-6-5 7968 Siskiyou Between Shasta Retreat and Shasta Springs, along the Sacramento a short distance below Shasta Springs 762 Comment
  CAS-BOT-BC49190  Ceanothus cuneatus Alice Eastwood 1912-8-30 2091 Siskiyou Mount Eddy, North Fork Trail Comment
  SFV5115  Ceanothus cuneatus B. C. Templeton 1957-6-22 s. n. Siskiyou North of Callahan. Comment
  SEINET11616398 Image available Ceanothus incanus A. A. Heller 1905-6-16 8051 Siskiyou Near Sisson Comment
  HSC100194  Ceanothus integerrimus J. P. Smith, & J. O. Sawyer 2011-9-5 13417 Siskiyou Along Klamath National Forest Road 45N28. 1378 Comment
  HSC25662  Ceanothus integerrimus J. O. Sawyer 1969-8-18 2020 Siskiyou SE facing midslope near CCC Rd. Comment
  HSC96808  Ceanothus integerrimus S. Lyon 2006-6-9 5 Siskiyou E side of Eddy Gulch, 3 mi S of the intersection with Sawyers Bar Rd. 915 Comment
  HSC99931  Ceanothus integerrimus J. P. Smith, & J. O. Sawyer 2011-7-31 13350 Siskiyou Sugar Creek Trail W of Callahan 1463 Comment
  SBBG16397  Ceanothus integerrimus D. Myrick 1961-6-21 299 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1066 Comment
  POM126443  Ceanothus integerrimus var. puberulus Lewis C. Rosenbaum 1916-7-7 s.n. Siskiyou Shasta Springs. Comment
  CAS-BOT-BC53080  Ceanothus prostratus Elmer I. Applegate 1935-6-11 9510 Siskiyou Upper Ice Cave area, Lava Beds National Monument Comment
  CAS-BOT-BC53094  Ceanothus prostratus Roxana S. Ferris; Laura Lorraine 1948-6-12 11813 Siskiyou At Mule Creek crossing of Scott Mountain Road 1524 Comment
  JEPS86074  Ceanothus prostratus Wayne Roderick 1966-6-26 Siskiyou along trail to Copper Butte Cook and Green Pass area 1524 Comment
  RSA47604  Ceanothus prostratus Roxana S. Ferris, Laura Lorraine 1948-6-12 11737 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  SJSU6488  Ceanothus prostratus R. W. Trivelpiece 1972-6-9 103 Siskiyou c. 4 mi E of Grass L 1524 Comment
  CAS-BOT-BC52173  Ceanothus pumilus Roxana S. Ferris; Laura Lorraine 1948-6-12 11811 Siskiyou At Mule Creek crossing of Scott Mountain Road 1524 Comment
  JEPS109713  Ceanothus pumilus Dean W. Taylor 2002-7-20 18269 Siskiyou The Eddys, Pacific Crest Trail ca. 0.5 mile North of Forest Road 17 2103 Comment
  CAS-BOT-BC63153  Ceanothus velutinus Alice Eastwood 1921-7-24 10772 Siskiyou Castle Lake. Comment
  HSC30657  Ceanothus velutinus Frederick W. Oettinger 1968-8-10 469 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area; east side of Hancock Lake 1936 Comment
  SJSU6540  Ceanothus velutinus R. W. Trivelpiece 1973-6-22 154 Siskiyou on trail to Big Duck & Little Duck L, Scott R drainage c. 7 mi W of Callahan 1920 Comment
  UC455427  Ceanothus velutinus I. J. Condit 1911-7-5 Siskiyou Mount Bradley near Shasta Retreat; Mount Bradley Comment
  UCD112841  Ceanothus velutinus J. M. Tucker 1950-7-23 1938 Siskiyou Beside road to Panther Meadows, south slope of Mt. Shasta. 1524 Comment
  RSA398980  Ceanothus velutinus Bonnie C. Templeton 1957-6-21 s.n. Siskiyou On the road up to Mt. Shasta. Comment
  CAS-BOT-BC52840  Ceanothus velutinus var. velutinus A. A. Heller 1905-6-16 8046 Siskiyou Near Sisson, along the Mt. Shasta trail at perhaps 5000 feet 1524 Comment
  UC1362454  Ceanothus velutinus var. velutinus Frederick Karl Klein 1969-9-7 Siskiyou At intersection of Shasta National Forest road 40N25 and S. P. tracks 1295 Comment
  CDA37883  Centaurea diffusa CDFA Staff 1991-1 s.n. Siskiyou Fort Jones. 0 Comment
  SEINET10798231  Centaurea solstitialis Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-1 Conrad 6970 Siskiyou East facing slope of road cut at the north edge of Hornbrook. 732 Comment
  CAS-BOT-BC281206  Centaurea stoebe subsp. micranthos T. C. Fuller 1967-8-15 16261 Siskiyou W side of Highway 97 to Weed, 3 miles S of Macdoel Comment
  UCR47629  Centaurea virgata var. squarrosa Don Pendleton 1986-6-26 s.n. Siskiyou Modoc Plateau 1293 Comment
  UC127379  Cephalanthera austiniae H. M. Hall and E. B. Babcock June, 1903 4079 Siskiyou near Upton (Mt.Shasta); Sierra Nevada Mts., Mt. Shasta 1219 Comment
  CDA3344  Cerastium glomeratum T. C. Fuller 1962-5-17 8742 Siskiyou Behind El Rancho Motel, Yreka. 0 Comment
  CAS-BOT-BC207626  Cercis occidentalis Doris K. Kildale 1929-5-31 9123 Siskiyou Cecilville, south fork of Salmon River. Comment
  SEINET6331969  Cercocarpus betuloides G. D. Butler 1910-5-30 1435 Siskiyou Humbug Creek Comment
  LA47766  Cercocarpus betuloides var. macrourus Louis C. Wheeler; 1934-7-12 2901 Siskiyou Siskiyou Mountains, Cottonwood Creek 1066 Comment
  HSC68509  Cercocarpus ledifolius Maralyn A. Renner 1980-6-9 840 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  CAS-BOT-BC276780  Chaenactis douglasii var. douglasii Alice Eastwood 1912-8-30 1999 Siskiyou Mount Eddy Comment
  UC30996  Chaenactis douglasii var. douglasii Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sims Upper Sacramento Comment
  CAS-BOT-BC106044  Chaenactis suffrutescens Louis C. Wheeler 1935-6-15 3586 Siskiyou Greenview, Scott Valley 883 Comment
  UC1303146  Chaenactis suffrutescens A. A. Heller 1928-6-9 14608 Siskiyou a short distance from Castle Crags (near Castle Lake, n source of the Sacramento River); Sacramento River, Castle Lake Comment
  SEINET515847  Chamaebatiaria millefolium Vernon Oswald 1997-7-28 8772 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi. S of Medicine Lake. 1366 Comment
  CAS-BOT-BC85660  Chamaecyparis lawsoniana W. R. Dudley 1901-8-16 s.n. Siskiyou Salmon Mountains Comment
  HSC101469  Chamaecyparis lawsoniana J. P. Smith, J. O. Sawyer 2011-7-21 13031 Siskiyou Flint Valley at the end of the G-O Road. 1313 Comment
  NY19023  Chamaecyparis lawsoniana H. E. Brown 1897-6-1 s.n. Siskiyou Near Sisson 1083.6 Comment
  UCSB15883  Chamaesaracha nana Breedlove, Dennis 1952-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  RSA499042  Chamaesyce serpillifolia L. C. Wheeler 1934-6-22 2761 Siskiyou Cottonwood Creek. 915 Comment
  UC642565  Chamaesyce serpyllifolia L. W. Wheeler 1930-6-30 13578 Siskiyou Howard Mount Shasta Comment
  CAS-BOT-BC166098  Chamerion angustifolium subsp. circumvagum Professor Life; Mrs. Life 1923-8-6 s.n. Siskiyou Shasta Spring Comment
  CAS-BOT-BC68206  Cheilanthes gracillima Mrs. H. C. Cantelow 1936-5-20 1379 Siskiyou Summit of Salmon Mt. 1818 Comment
  CAS-BOT-BC68218  Cheilanthes gracillima Maxine Wilkes 1940-8-1 s.n. Siskiyou Deep Lake, Marble Mts. Comment
  CAS-BOT-BC68241  Cheilanthes gracillima G. J. Muth 1969-8-6 1193 Siskiyou Boulder Peak 2529 Comment
  CAS-BOT-BC68247  Cheilanthes gracillima L. B. Kildale 1930-6-1 9750 Siskiyou Black Bear Trail to Sawyers Bar Comment
  HSC27789  Cheilanthes gracillima J. P. Smith, J. O. Sawyer 1972-9-13 5784 Siskiyou 0.5 mi. W of Cook and Green Pass on rd. to Lily Pad Lake. Comment
  POM120359  Cheilanthes gracillima Geo D. Butler 1910-7-12 1754 Siskiyou Shackeford Lake 1372 Comment
  RSA577148  Cheilanthes gracillima L. C. Wheeler 1934-8-2 3021 Siskiyou Head Jaynes Canyon, Siskiyou Mountains 2073 Comment
  CAS-BOT-BC451433  Chimaphila menziesii John Thomas Howell 1937-7-22 13295 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC451440  Chimaphila menziesii Alice Eastwood 1921-7-26 10858 Siskiyou Soda Creek Comment
  RSA187382  Chimaphila menziesii H. A. Thomas, J. H. Thomas, Alan Thomas 1954-7-21 4420 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek. 1159 Comment
  HSC61813  Chimaphila menziesii Ruby Van Deventer 1958-7-18 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC452258  Chimaphila umbellata John Thomas Howell 1937-7-26 13559 Siskiyou Caribou Gulch Comment
  CAS-BOT-BC452286  Chimaphila umbellata H. A. Thomas; J. H. Thomas 1954-7-21 4389 C Siskiyou Salmon-Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek 1036 Comment
  RSA758592  Chimaphila umbellata R. F. Thorne 1969-8-2 63400 Siskiyou Klamath National Forest, Salmon Mountains: Marble Mtn Wilderness, along trail to English Peak. 1159 Comment
  HSC69004  Chrysolepis chrysophylla Maralyn A. Renner 1980-7-24 2133 Siskiyou Pacific Crest Trail, 0.25 mi. SW of Cook and Green Pass. 1494 Comment
  OBI55439  Chrysolepis chrysophylla var. chrysophylla David J. Keil 1992-7-20 23498 Siskiyou Klamath Natl Forest, SW of Fort Jones. Along forest Road 44N45, 8.1 mi S of Scott River Rd, 2.7 mi S of turnoff to Lover's CAmp Comment
  CAS-BOT-BC36202  Chrysolepis sempervirens E. B. Copeland 1903-8-13 3835 Siskiyou Sisson 1066 Comment
  JEPS37660  Chrysolepis sempervirens B. Wise Neilsen 1936-10-18 Siskiyou 2 mi nw Etna Mt.; Salmon Mt. Comment
  RSA184687  Chrysothamnus nauseosus subsp. albicaulis Gilbert Muth 1966-8-7 503 Siskiyou Lookout trail along ridge, Marble Mts. 2058 Comment
  HSC104251  Cinna latifolia Dana York 2011-9-8 3082 Siskiyou Klamath National Forest, Marble Mountain Wilderness, along the Pacific Crest Trail, ~650 m SE of Paradise Lake 1950 Comment
  HSC19236  Circaea alpina subsp. pacifica J. O. Sawyer 1969-7-23 1183 Siskiyou Along road near Horse Range Creek. 1341 Comment
  CAS-BOT-BC285343  Cirsium andersonii Alice Eastwood 1912-7-23 1354 Siskiyou Cantara 834 Comment
  CAS-BOT-BC278044  Cirsium cymosum Marion Ownbey; S. J. Preece, Jr. 1952-6-25 3347 Siskiyou West of Yreka Comment
  CHSC114379  Cirsium cymosum var. canovirens Jodi Aceves 2011-7-20 PDR 1466465 Siskiyou Copco Lake, Ager Beswick Road. Comment
  UC135253  Cirsium douglasii var. breweri Dr. E. B. Copeland 1903-8-14 3934 Siskiyou Sisson Pacific Coast, Sisson 1066 Comment
  UC166658  Cirsium scariosum Geo. D. Butler 1910-6-6 1459 Siskiyou Quartz Valley Comment
  SD76164  Cirsium vulgare Helen V. Witham 1969-10-9 Siskiyou McBride Springs Road, Mt. Shasta 1500 Comment
  CAS-BOT-BC228972  Cistanthe umbellata A. A. Heller 1922-7-15 13695 Siskiyou At Medicine Lake 2133 Comment
  CAS-BOT-BC228979  Cistanthe umbellata John Thomas Howell 1934-7-4 12392 Siskiyou Unspecified Comment
  UC796568  Clarkia gracilis subsp. gracilis Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11711 Siskiyou Schoolhouse Hill East Fork of Scott River, Plowman's Valley (Noyes Valley) Comment
  RSA448331  Clarkia purpurea subsp. viminea Louis C. Wheeler 1934-6-2 2610 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mountains (Mt. Diablo Mer.) 671 Comment
  CAS-BOT-BC164929  Clarkia rhomboidea A. A. Heller 1916-6-23 12435 Siskiyou Near Black Butte north of Sisson 1127 Comment
  UC930719  Clarkia rhomboidea A. A. Heller 1916-6-23 12435 Siskiyou n Sisson (near Black Butte) 1127 Comment
  HSC16270  Clarkia rhomboidea R. C. Wunner 1965-6-29 296 Siskiyou Lava Beds N. M., 0.25 mi. NW of Lower Caldwell Ice Cave 1433 Comment
  HSC39748  Claytonia exigua subsp. exigua J. O. Sawyer 1970-4-4 2087 Siskiyou Along Sugar Creek 823 Comment
  CHSC1364  Claytonia lanceolata V. Holt 1936-5-24 Siskiyou Mt. Shasta. Comment
  CDA17137  Claytonia rubra G. F. Hrusa 2001-6-6 15851 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  CAS-BOT-BC443810  Claytonia rubra subsp. rubra Roxana S. Ferris; Laura Lorraine 1948-6-12 11807 Siskiyou At Mule Creek crossing of Scott Mountain Road 1524 Comment
  HSC17703  Claytonia rubra subsp. rubra D. M. Thomson 1965-7-10 123 Siskiyou Lava Beds National Monument, by headquarters and information office Comment
  HSC22228  Claytonia rubra subsp. rubra J. O. Sawyer 1969-7-1 994 Siskiyou Above Paynes Lake Creek 1951 Comment
  HSC29462  Claytonia rubra subsp. rubra Frederick W. Oettinger, R. F. Thorne 1969-8-6 1253 Siskiyou Marble Mtn. Wilderness Area, Pine Lake Basin 1829 Comment
  POM164048  Claytonia sibirica E. B. Copeland 1903-8-13 3891 Siskiyou Sisson. 1067 Comment
  CAS-BOT-BC92757  Clematis ligusticifolia Alice Eastwood 1912-7-23 1349 Siskiyou Cantara. Comment
  UC165974  Cleome platycarpa Geo. D. Butler 1910-5-11 1335 Siskiyou Shasta Valley Comment
  HSC42887  Clinopodium douglasii K. T. Stillman 1976-8-15 402 Siskiyou Along Specimen Creek 915 Comment
  CAS-BOT-BC499972  Clintonia uniflora A. A. Heller 1919-6-20 13251 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC500968  Clintonia uniflora Volney Rattan 1879-6-1 s.n. Siskiyou Siskiyou Mountains, Northwest California Comment
  CAS-BOT-BC238058  Collinsia Mary Boyd Lichens 1948-5-1 s.n. Siskiyou Near Walker, along Klamath River 579 Comment
  JEPS86076  Collinsia linearis Wayne Roderick 1966-6-26 Siskiyou w of Copper Butte (e along trail to Copper Butte); Cook and Green Pass area Comment
  JEPS25710  Collinsia linearis P. C. Hutchison 1961-5-22 2040 Siskiyou 2.7 mi n Clear Creek (on US 299; w side of Klamath River, 5.7 m s of Happy Camp); Klamath River Comment
  HSC43382  Collinsia parviflora Maralyn O'Meara 1974-5-26 458 Siskiyou Along USFS Rd. 47N03 1524 Comment
  HSC72473  Collinsia rattanii J. P. Smith 1973-5-5 6462 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC62079  Collinsia rattanii Ruby Van Deventer 18 Jun [year missing] Siskiyou Raspberry Lake, 2 mi. W of Copper Mtn. Comment
  SJSU6065  Collinsia rattanii R. W. Trivelpiece 1971-7-8 23 Siskiyou c. 2.5 mi S of Cecilville near Cecil Point Lookout, Salmon R Mts 822 Comment
  JEPS93874  Collomia grandiflora Vernon H. Oswald and Lowell Ahart 1998-7-21 9317 Siskiyou 2.2 mi ne of Lake Shastina-Big Springs Road (ne of Weed, Shasta National Forest plantation on w side of Highway 97); Shasta National Forest, Highway 97 975 Comment
  UCD118165  Collomia grandiflora J. M. Tucker 1974-7-28 4312 Siskiyou Adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  UCSB13154  Collomia grandiflora Breedlove, Dennis 1962-6-10 Siskiyou Indian Creek Road, 2.3 miles northwest of Happy Camp; Siskiyou Mountains 365 Comment
  UCD77565  Collomia linearis Robert E. Preston 2001-6-30 1640 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mountain. 1722 Comment
  JEPS71071  Collomia tinctoria S. Brown July 1900 Siskiyou Sisson Comment
  UC2013021  Collomia tinctoria Barbara Ertter 1990-7-14 9333 Siskiyou Wagon Creek on E side of Mt. Eddy, ca. 4 air miles W of Mt. Shasta City. Comment
  UC643296  Collomia tinctoria W. Bridge Cooke 1940-7-26 15366 Siskiyou in woods and openings on banks of canyon Mount Shasta, Diller Canyon 1524 Comment
  UC60933  Convolvulus arvensis Geo. B. Grant September, 1902 5219 Siskiyou Sisson Mount Shasta (railway bank) 914 Comment
  CDA32137  Convolvulus arvensis M. Beyers, G. F. Hrusa 2010-8-18 693 Siskiyou Highway 96; Sluice Box Klamath River Access. 0 Comment
  CDA21755  Conyza canadensis T. C. Fuller 1962-8-3 9499 Siskiyou Siskiyou Mountains; 200 yards up Raggedass Gulch, east of Beaver Creek, 5 miles north of Klamath River. 0 Comment
  CHSC105581  Cordylanthus tenuis subsp. pallescens Barbara L. Wilson; Richard E. Brainerd 2010-8-9 16280 Siskiyou Road to trailhead for Black Butte trail. Lat. and Long. indicated +/- 36 feet. 1353 Comment
  UCD123172  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-9 16291 Siskiyou Stewart Springs Road 1.5 miles from the Gazelle Road. Comment
  JEPS7045  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with G. T. Robbins and C. L. Custer 1954-8-12 4791 Siskiyou 1/2 mi w Hamburg (along hwy following Klamath Riber) 457 Comment
  JEPS77480  Cordylanthus tenuis subsp. viscidus L. R. Heckard 1978-9-7 4974 Siskiyou s Edgewood (road above Stewart Springs, on Deadfall Meadow-Mt. Eddy Rd.) 1371 Comment
  SBBG93279  Cordylanthus tenuis subsp. viscidus B. Ertter 1987-7-26 7325 Siskiyou 2.2 mi N of Scott Mtn summit, on Hwy 4, at rd jct; W of rd 1371 Comment
  JEPS57501  Cordylanthus tenuis subsp. viscidus L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-8-13 2123 Siskiyou just a mile over s of downtown Dunsmuir (along Dunsmuir Ave) 822 Comment
  JEPS7047  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with G. T. Robbins and C. L. Custer 1954-8-13 4795 Siskiyou on road from Callahan to Carrville (1.2 mi above (and s of) junction with Gazelle road, lower part of grade over Scott Mt.) 1097 Comment
  OBI59411  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi, C. L. Custer & G. T. Robbins 1954-8-12 4790 Siskiyou 5.1 mi below (and SE of ) summit of the road between Takilma, OR and Happy Camp-Klamath Natl Forest, Siskiyou Mts; drainage of the West Branch of Indian Creek 914 Comment
  RSA237381  Cornus californica Frederick W. Oettinger 1968-9-1 634 Siskiyou E. shore of Abbotts Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1723 Comment
  RSA237382  Cornus californica Frederick W. Oettinger 1969-7-18 1058 Siskiyou Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  UC1034650  Cornus glabrata Milo S. Baker 1955-6-27 13090 Siskiyou along rd. from Gazelle to <Calahan> Comment
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  CAS-BOT-BC212064  Cornus nuttallii Ira L. Wiggins 1955-7-29 13589 Siskiyou Along Thompson Creek, 3.5 mi. above S Fork of Salmon River 1371 Comment
  SEINET12136386  Cornus nuttallii M. Ownbey, Brown, D. H. 1941-1 2426 Siskiyou on road between Craggy Mountain & Deadwook Lookout, NW of Yreka Comment
  CAS-BOT-BC210389  Cornus sericea Annie M. Alexander; Louise Kellogg 1948-9-6 5586 Siskiyou Siskiyou Mountains. At Matthews Creek, South Fork Salmon River Comment
  JEPS24620  Cornus sericea subsp. sericea Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6773 Siskiyou directly opposite Mossbrae Falls between Shasta Retreat and Shasta Springs (on bank of Sacramento R.); Sacramento R. 731 Comment
  UC1483514  Cornus sericea subsp. sericea John Palmer 1980-8-13 786 Siskiyou near F.S. Rd. 47N44 from Beaver Creek Rd. Dead Cow Creek; Klamath Nat'l Forest, Condry Mt., Quad, Dead Cow Creek 1615 Comment
  JEPS78178  Corylus californica Gary W. Zamzow 1972-7-20 93 Siskiyou 7 mi e of McCloud (on Highway 89, Fowlers Campground, on e-facing bank of McCloud River); McCloud River, Fowlers Campground, Highway 89 1066 Comment
  UCD110080  Corylus cornuta subsp. californica AT Leiser 1973-3-22 s.n. Siskiyou Dunsmuir. Comment
  RSA481446  Corylus cornuta var. californica M. B. Dunkle 1944-7-15 9098 Siskiyou Siskiyou National Forest. Comment
  RSA47646  Crataegus suksdorfii Roxana S. Ferris, Laura Lorraine 1948-6-12 s.n. Siskiyou E Fork of Scott River drainage, Parker Ranch, Plowman's Valley. 1204 Comment
  UC163903  Crepis monticola Geo. D. Butler 1909-5-30 750 Siskiyou thickets near Yreka Comment
  CAS-BOT-BC376542  Crepis monticola G. L. Stebbins, Jr.; E. B. Babcock 1936-6-13 1974 Siskiyou East and northeast slope of spur of Rainbow Ridge above Sulloway Creek about 1 1/2 mi. west of Mt. Shasta City 1180 Comment
  JEPS36459  Crepis occidentalis Geo. D. Butler 1909-5-31 748 Siskiyou Hawkinsville Comment
  SEINET2142064 Image available Crepis occidentalis subsp. conjuncta Unknown 1644 Siskiyou Marble Mountain 2440 Comment
  CAS-BOT-BC290876  Crepis pleurocarpa John Thomas Howell 1937-7-29 13646 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  HSC43863  Crepis pleurocarpa Maralyn O'Meara 1974-5-25 371 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  OBI55464  Crepis pleurocarpa David J. Keil, Kathleen Keil 1992-7-21 23540 Siskiyou Klamath Natl forest SE of Callahan. forest Rd 40N08, 1.7 mi W of Scott Mtn rd (hwy 3) Comment
  SEINET10474591  Crepis pleurocarpa Mary Merello 1993-6-22 Merello 698 Siskiyou Shasta National Forest. Along Forest Road 26 to Lake Siskiyou outside of Mt. Shasta City. Mixed conifer forest. Steep, rocky serpentine slopes along Sacramento River. 1270 Comment
  RSA183735  Crepis pleurocarpa Gilbert Muth 1965-8-11 207 Siskiyou Upper meadows, Marble Valley, Marble Mts. Comment
  UC581271  Crepis pleurocarpa G. L. Stebbins Jr. and J. A. Jenkins 1937-7-19 2434 Siskiyou on creek 1 mi below Stewart Springs; Park's Creek 1120 Comment
  HSC39750  Crocidium multicaule J. O. Sawyer 1970-4-4 2084 Siskiyou Along Sugar Creek 823 Comment
  SBBG25872  Cryptantha affinis D. Myrick 1966-8-12 1546 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  UC618853  Cryptantha affinis unknown 1938-7-15 11187 Siskiyou Bear Springs meadow Mount Shasta, Bear Springs 1524 Comment
  HSC29341  Cryptantha affinis Frederick W. Oettinger 1969-7-10 960 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: SW of Upper English Lake 1921 Comment
  CHSC86661  Cryptantha intermedia Jenny Marr 1993-7-1 44 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 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
  UC78652  Cryptantha rostellata Thomas Howell May 1889 Siskiyou Hornbrook Comment
  RSA331956  Cryptogramma acrostichoides W. Wisura, Dave Kelly 1895-7-31 4080 Siskiyou Near Kangaroo Lake, Scotts Mtns, on granite rocks near campground. Comment
  RSA233668  Cryptogramma cascadensis R. F. Thorne 1969-8-10 38980 Siskiyou Mount Shasta National Forest, south slope of Mount Shasta. 2378 Comment
  SEINET8671193 Image available Cryptogramma crispa subsp. acrostichoides M. W. Bridge Cooke 1937-1 9165 Siskiyou Mt. Shasta Comment
  NY16602  Cupressus bakeri C. B. Wolf 1944-10-29 11478 Siskiyou Northwest side Goose Nest Mt., about 1 mile due south of Old Smith Sawmill on Montague to Mt. Hebron Road 1676.4 Comment
  NY16604  Cupressus bakeri C. B. Wolf 1934-10-9 6170 Siskiyou Siskiyou Mountains, above West Fork of Seiad Creek, 0.75 miles above forks of creek 1158.2 Comment
  RSA176220  Cupressus bakeri C. O. Stone 1964-6-6 287 Siskiyou 100 yards NE of Quarry in Sec. 25 SW/4 SW/4 NE/4 Fall River Mills quad 1110 Comment
  SEINET10899793 Image available Cupressus bakeri Carl B. Wolf, E. R. Johnson 1934-10-9 Wolf 2131 Siskiyou Siskiyou Mts. Above W. Fork of Seiad Creek, 3/4 mi above forks of creek. Arid transition:- Yellow Pines, Douglas Firs. Sun. S slope in red rock. 1160 Comment
  SEINET4467566 Image available Cupressus bakeri C. B. Wolf, E. R. Johnson 1934-1 6169 Siskiyou Comment
  NY1292  Cupressus bakeri subsp. matthewsii C. B. Wolf 1934-10-9 6169 Siskiyou Siskiyou Mts., above W fork of Seiad Creek, 0.75 mi above forks of creek. 1158.2 Comment
  SEINET10531077  Cupressus bakeri subsp. matthewsii Matthews 1939-7-11 MATTHEWS 32 Siskiyou Salad Grove. 855 Comment
  JEPS95350  Cupressus lawsoniana Vernon H. Oswald and L. Ahart 1994-7-11 6407 Siskiyou T39N R5W SW1/4 SE1/4 Sec. 16, 4750 ft, Yellow Pine Forest. Forest Rd. 26 (to Mt. Shasta) paralleling the South Fork of the Sacramento River, just W of Forest Rd. 40N43, 9.2 mi SW of the dam at Lake Siskiyou 1447 Comment
  JEPS47088  Cuscuta cephalanthi A. L. Grant 1902-9-1 5217 Siskiyou Sisson 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
  RSA666423  Cuscuta occidentalis Barbara Ertter 1987-7-26 7326 Siskiyou 2.2 mi N of Scott Mt. summit on Hwy 3, at road junction.Half way down Old Priest Grade between Big Oak Flat and junction of Highways 120 and 49, ca. 35 airmiles E of Modesto. 1372 Comment
  RSA625529  Cuscuta occidentalis L. C. Wheeler 1963-8-25 8268 Siskiyou South side of Preston Peak: Rattlesnake Meadow. Comment
  HSC78073  Cyclachaena xanthiifolia R. Pederson, G. Pederson 1979-8-15 Siskiyou Tulelake; Lower Klamath National Wildlife Refuge; on E side of the road near entrance to tour route 1238 Comment
  HSC19016  Cynoglossum occidentale J. O. Sawyer 1969-7-26 1583 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  CHSC63601  Cynoglossum officinale Vernon H. Oswald; Lowell Ahart 1994-8-10 6458 Siskiyou 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. In meadow border and roadsides. 1359 Comment
  CDA5638  Cynoglossum officinale T. C. Fuller 1967-8-14 16259 Siskiyou Road to McCloud Reservoir, 3 miles south of McCloud. 0 Comment
  JEPS64056  Cyperus squarrosus B. C. Goldsmith 1916-9-9 21 Siskiyou Klamath R., Klamath Hot Springs Comment
  HSC79094  Cyperus squarrosus Paul Wilson 1984-8-29 358 Siskiyou Juanita Lake Reservoir, next to lake edge 1555 Comment
  CAS-BOT-BC133734  Cypripedium californicum A. A. Heller 1919-6-29 13282 Siskiyou Field redacted by CAS, contact the data manager for more information Comment
  HSC39936  Cypripedium montanum J. O. Sawyer 1970-6-17 2201 Siskiyou N slopes of Eaton Peak 1524 Comment
  CAS-BOT-BC70706  Cystopteris fragilis L. B. Kildale 1930-6-1 9851 Siskiyou Summit between Sawyers Bar and Etna Mountain Comment
  CAS-BOT-BC70718  Cystopteris fragilis L. R. Short 1933-9-10 77 Siskiyou Rogue River Forest 1889 Comment
  SEINET3895842 Image available Damasonium californicum George Neville Jones 1967-6-30 45134 Siskiyou In pond near Dorris.; 0 Comment
  CAS-BOT-BC192258  Danthonia californica L. P. Janeway 1983-8-26 595 B Siskiyou Siskiyou Mountains; at Poker Flat 1524 Comment
  UCD60863  Danthonia californica var. americana A. A. Heller 1915-7-18 12113 Siskiyou Metcalf's ranch, northeast of base of Mt. Eddy. 1249 Comment
  HSC96297  Danthonia unispicata Gordon Leppig 1998-8-13 1000 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  HSC66240  Darlingtonia californica Maralyn A. Renner 1980-8-6 2294 Siskiyou Cracker Meadow 1555 Comment
  HSC66253  Darlingtonia californica Maralyn A. Renner 1980-7-4 1382 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC66258  Darlingtonia californica Maralyn A. Renner 1980-7-4 1435 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  OBI55413  Darlingtonia californica David J. Keil, Kathleen Keil 1992-7-21 23545 Siskiyou Klamath Natl Forest SE of Callahan. Forest Road 40N08, 1.7 mi W of Scott Mtn rd (hwy 3) Comment
  UC11158  Darlingtonia californica Geological Survey 1862-1 1356 Siskiyou near streams Mt Shasta Comment
  SEINET10937535  Darlingtonia californica Mary Susan Taylor 1980-7-22 Taylor 3171 Siskiyou T40N R7W ne sec 32, China Mt quad. Klamath Natl Forest, along creek and meadow, ca. 0.1 mi SW of Big Carmen Lake, on S side of rd 40N08, ca. 2.3 mi NE of its jct with Hwy 3 at Scott Mt summit. 1737 Comment
  JEPS49587  Darmera peltata Geo. D. Butler 1908-8-21 220 Siskiyou Etna Creek; Salmon road crossing 1219 Comment
  POM92221  Darmera peltata Geo. D. Butler 1910-4-24 1234 Siskiyou Shakleford Creek Comment
  RSA240079  Darmera peltata Frederick W. Oettinger 1969-8-29 1561 Siskiyou Main N Fork Trail betw 4th and 5th river crossing. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. Comment
  HSC64753  Dasiphora fruticosa J. P. Smith, Steve Selva 1970-7-17 4451 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC76908  Dasiphora fruticosa K. T. Stillman 1976-9-10 500 Siskiyou Marble Mountain Wilderness Area, across marble on E side of Black Mountain 2104 Comment
  RSA126347  Datisca glomerata I. L. Wiggins 1955-7-21 13426 Siskiyou Near Mt. View Ranch 7 mileNortheast of Cuesta Grade.s above Cecilville on S Fork of Salmon River 976 Comment
  JEPS74466  Delphinium glaucum W. J. Ferlatte 1966-8-18 404 Siskiyou 3 mi s Big Flat; Trinity Alps 1584 Comment
  SBBG25946  Delphinium glaucum D. Myrick 1966-8-10 1517 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  RSA211136  Delphinium glaucum William J. Ferlatte 1966-8-18 404 Siskiyou Wooded area 3 miles S of Big Flat. 1585 Comment
  HSC34156  Delphinium nuttallianum J. O. Sawyer 1969-7-9 1223 Siskiyou Along trail to Sugar Lake. 1768 Comment
  HSC81749  Delphinium nuttallianum Thomas W. Nelson, Jane P. Nelson 1980-7-19 6193 Siskiyou Along USFS Rd. 39N01 A at Fox Creek, 1 mi. from jct. with 39N01 1677 Comment
  CAS-BOT-BC192470  Deschampsia cespitosa subsp. cespitosa Elmer I. Applegate 1923-8-19 3895 Siskiyou Medicine Lake, west side 1981 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
  POM207073  Deschampsia cespitosa subsp. cespitosa Th. Holm 1903-9-6 3798 Siskiyou Mt Eddy Comment
  CAS-BOT-BC201633  Deschampsia danthonioides Gilbert Muth 1966-7-19 430 Siskiyou Marble Gap Trail, along 1st bluff, Marble Mts. 1828 Comment
  RSA184788  Deschampsia danthonioides Gilbert Muth 1966-7-19 430 Siskiyou Marble Gap Trail, along first bluff, Marble Mountains. 1829 Comment
  CAS-BOT-BC201943  Deschampsia elongata A. A. Heller 1915-7-18 12134 Siskiyou Metcalf's ranch, base of Mt. Eddy Comment
  RSA238393  Deschampsia elongata Frederick W. Oettinger 1969-8-14 1373 Siskiyou Weed area near campsite, English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UC144813  Deschampsia elongata Copeland 1903-9-7 3793 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC65375  Descurainia incana R. C. Wenk 2005-7-16 253 Siskiyou South Fork of the Salmon River, S end of Big Flat Meadow. 1493 Comment
  JEPS14816  Descurainia sophia Geo. D. Butler 1908-6-20 120 Siskiyou Yreka Comment
  HSC103843  Dicentra formosa subsp. oregana G. Fred Hrusa 2001-6-6 15854 Siskiyou Near summit of pass between Happy Camp, CA and O'Brien, OR at turnoff to Bolan Lake at Oregon border 1425 Comment
  HSC91288  Dicentra pauciflora Jennifer Whipple 1976-6-17 1016 Siskiyou N face of Mt. Eddy 2226 Comment
  UCD139161  Dichelostemma ida-maia Louis K. Mann 1963-7-5 s.n. Siskiyou South Russian Creek, around 3 miles (airline) east of Finley Camp, Salmon Mountains. Comment
  UC144626  Dichelostemma multiflorum A. A. Heller 1905-6-1 7942 Siskiyou between Upper Soda Spring and Shasta Retreat Comment
  HSC92174  Dieteria canescens var. shastensis Jennifer Whipple 1976-8-20 1705 Siskiyou Summit region of Mt. Eddy 2470 Comment
  HSC76730  Dieteria canescens var. shastensis K. T. Stillman 1976-8-8 392 Siskiyou Marble Mtn. Wilderness Area, ridge W of jump off. 2073 Comment
  CDA41641  Digitalis purpurea G. F. Hrusa 1998-7-5 14691 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. at mile 5.x. Sheet 2 of 2 Comment
  SEINET8225567  Diplacus nanus Unknown 1948-6-12 1171 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], east fork of Scott River. Comment
  SEINET4904065 Image available Dodecatheon alpinum Unknown 1991-5-27 s.n. Siskiyou Klamath National Forest, Poker Flats. West Branch (2200 ft) a Forest Service Camp Ground or Poker Flats (5200 ft) a high mountain meadow. 671 Comment
  HSC43385  Dodecatheon conjugens Maralyn O'Meara 1974-5-26 461 Siskiyou Along USFS Rd. 47N03 1524 Comment
  RSA78680  Dodecatheon hendersonii P. A. Munz 1952-7-2 17873 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1494 Comment
  HSC45210  Dodecatheon jeffreyi J. O. Sawyer, E. Cope 1977-6-20 2965 Siskiyou Behind Devil's Punchbowl 1829 Comment
  UC1736286  Dodecatheon jeffreyi Dean W. Taylor 1972-7-3 1615 Siskiyou Salmon Mountains, near Little Duck Lake 1981 Comment
  SEINET8563813  Dodecatheon redolens G. D. Butler 1910-6-5 1522 Siskiyou Loy Lake, Shackleford Creek Comment
  JEPS94820  Downingia insignis Vernon H. Oswald and Lowell Ahart 1998-6-11 9217 Siskiyou near the junction of Meiss Lake-Sams Neck Road and Highway 97 5 mi n of Macdoel (Butte Valley National Grassland); Butte Valley National Grassland 1295 Comment
  HSC29183  Draba howellii Frederick W. Oettinger 1967-7-26 196 Siskiyou Salmon Mtns., high lake basins in the vicinity of English Peak, Marble Mtn. Wilderness area, down NE end of Crapo Peak Ridge 2186 Comment
  HSC61985  Draba howellii Al Hobart Siskiyou Preston Peak Comment
  RSA237280  Draba howellii Frederick W. Oettinger 1968-9-1 646 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-BC41316  Draba pterosperma Jack Major; M. Fleschner; R. Pemble 1966-9-4 s.n. Siskiyou Marble Mountains. Northeast face of Marble Mountain. 2133 Comment
  UC1409434  Draba pterosperma Frederick W. Oettinger 1968-8-22 601 Siskiyou cliffs above English Lake to Diamond Lake trail on English Lake side of pass Marble Mountain Wilderness Area, Salmon Mountains (High Lake Basins in vicin of English Peak, Western Siskiyou County) 2225 Comment
  JEPS20038  Draba verna George D. Butler 1909-4-6 549 Siskiyou below Yreka (Butler's Ranch); below Yreka, Butler's Ranch Comment
  HSC28739  Drosera rotundifolia Frederick W. Oettinger, R. F. Thorne 1969-8-8 1300 Siskiyou Marble Mtn. Wilderness Area, W above English Lake. 1829 Comment
  CAS-BOT-BC159439  Drymocallis glandulosa var. glandulosa David D. Keck 1938-8-6 4809 Siskiyou At Del Norte Co. line, Poker Flat, summit of Siskiyou Mts., 4 mi. S. of Oregon line, on road from Waldo to Happy Camp. 1554 Comment
  UC154518  Drymocallis lactea var. austiniae Harley P. Chandler June, 1901 1697 Siskiyou near Marble Mountain; North Coast Ranges, near Marble Mountain 1828 Comment
  HSC76989  Drymocallis lactea var. lactea K. T. Stillman 1976-6-25 67 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  UC609347  Drymocallis pseudorupestris var. saxicola Eleanor Burks Hart 1938-8-18 931 Siskiyou western slope of Boulder Peak 2529 Comment
  CAS-BOT-BC158416  Drymocallis rhomboidea Doris K. Kildale 1929-7-20 8692 Siskiyou Raspberry Lake, South Fork of Indian Creek Comment
  HSC29656  Drymocallis rhomboidea Frederick W. Oettinger, R. F. Thorne 1969-8-5 1209 Siskiyou Marble Mtn. Wilderness Area, Willow Spring on English Lake trail 1677 Comment
  UC637037  Echinochloa crus-galli Edward Lee 1934-8-10 1018 Siskiyou Klamath River, south bank between McKinney and Parkerhouse Creeks; Klamath River, South bank 609 Comment
  CAS-BOT-BC197244  Echinochloa muricata Dorothy Parker 1948-8-24 87 Siskiyou Plowman's Valley, East Fork of Scott River 1066 Comment
  HSC30716  Eleocharis macrostachya Frederick W. Oettinger 1968-9-5 716 Siskiyou Marble Mtn. Wilderness Area, inlet at SE side of Hancock Lake 1936 Comment
  RSA577566  Eleocharis obtusa L. C. Wheeler 1935-7-20 3671 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  RSA577441  Eleocharis parishii L. C. Wheeler 1934-6-3 2628 Siskiyou Cherry Flat, Klamath River; Siskiyou Mts. 518 Comment
  RSA238987  Elymus elymoides Frederick W. Oettinger 1969-9-2 1583 Siskiyou Crapo Meadow near Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UCD61537  Elymus elymoides L. Whitney 1935-7-15 3472 Siskiyou Bullseye Lake, 2 miles southeast of Medicine Lake. Comment
  SEINET10564673  Elymus elymoides A. Arthur Heller 1905-6-19 Heller 8071 Siskiyou Grenada Station. Comment
  UCD61650  Elymus elymoides subsp. californicus Robert E. Preston 2001-6-23 1624 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn. 1706 Comment
  UC1495300  Elymus elymoides subsp. elymoides Robert T. Clausen and Harold Trapido 1940-7-27 4971 Siskiyou w side of creek 5 mi nne summit of Mt. Shasta; So. Cascade Mts., Sacramento River Basin, Mountainhouse Cree 1981 Comment
  UC157087  Elymus elymoides subsp. elymoides Dr. E. B. Copeland 1903-7-3 3536 Siskiyou Klamathon Comment
  HSC26575  Elymus elymoides var. californicus J. P. Smith 1972-8-17 5748 Siskiyou Medicine Lake 2012 Comment
  HSC76769  Elymus elymoides var. elymoides K. T. Stillman 1976-8-7 376 Siskiyou Marble Mtn. Wilderness Area, Box Camp Mtn. 2195 Comment
  HSC103022  Elymus glaucus J. P. Smith 2014-6-6 13879 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  POM2058603  Elymus glaucus Copeland 1903-9-6 3802 Siskiyou Mt. Eddy Comment
  UC166039  Elymus glaucus Geo. D. Butler 1910-7-3 1624 Siskiyou Goosenest foothills; creek bed 1219 Comment
  UC224203  Elymus glaucus E. Palmer 1892-1 2652 Siskiyou near Mt. Shasta Comment
  HSC38844  Elymus multisetus J. P. Smith, Steve Selva 1970-6-15 3932 Siskiyou Between Forks of Salmon and Cecilville. Comment
  UC203918  Elymus trachycaulus Geo. D. Butler 1909-6-27 847 Siskiyou roadside near Yreka Comment
  HSC91442  Elymus trachycaulus subsp. trachycaulus Jennifer Whipple 1977-8-6 2210 Siskiyou Klamath Mtns., SW of Dobkins Lake along drainage into the lake 2104 Comment
  RSA129177  Elymus trachycaulus subsp. trachycaulus H. S. Yates 1936-6-21 5819 Siskiyou 1 mile S E of Gazelle. Etna. Comment
  CAS-BOT-BC392232  Enemion stipitatum Louis C. Wheeler 1935-3-10 3371 Siskiyou Miller Gulch off Klamath River, Siskiyou Mts. 670 Comment
  JEPS89972  Epilobium anagallidifolium Dean W. Taylor 1975-8-14 5453 Siskiyou between Shasta Ski area and Green Butte (Mt. Shasta); Mt. Shasta 2590 Comment
  SEINET6635547 Image available Epilobium angustifolium subsp. circumvagum A. A. Heller 1916-1 12434 Siskiyou near Black Butte N of Sisson 1128 Comment
  HSC93865  Epilobium ciliatum subsp. ciliatum Jennifer Whipple 1977-8-6 2242 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  RSA264969  Epilobium ciliatum subsp. glandulosum G. L. Clifton 1975-7-28 s.n. Siskiyou Near Cook and Green Pass near the Seiad Valley. 1646 Comment
  SEINET8198342  Epilobium ciliatum subsp. glandulosum D. W. Taylor 2002-8-7 18299 Siskiyou Logging road below Tamarack Lake, East Fork of Trinity River; seepage area ca. 300 m South of area shown on topographic maps as "4991T", 0.2 miles North of the creek crossing 1547 Comment
  POM248137  Epilobium ciliatum subsp. glandulosum W. Bridge Cooke 1939-7-21 13701 Siskiyou Mouth of the Municipal spring above Howard, Mount Shasta 1280 Comment
  RSA237401  Epilobium ciliatum subsp. glandulosum Frederick W. Oettinger 1968-9-6 766 Siskiyou Upper meadow, Tobacco Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  RSA237582  Epilobium ciliatum subsp. glandulosum Frederick W. Oettinger 1969-7-31 1114 Siskiyou Wet meadow, west of and above English Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1738 Comment
  UC1222848  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1950-7-20 19209 Siskiyou 45 mi se Elk Valley; Flint Valley 1432 Comment
  POM256466  Epilobium glaberrimum subsp. glaberrimum Edward Lee 1934-8-15 1127 Siskiyou Summit of Happy Camp to Waldo (Oregon) road, Indian Creek watershed, Klamath National Forest 1616 Comment
  POM171592  Epilobium hallianum Doris K. Kildale 1929-7-20 8701 Siskiyou Trail between Elk Lick and Raspberry Lake 1677 Comment
  RSA237581  Epilobium hallianum Frederick W. Oettinger 1969-8-14 1381 -a Siskiyou Campsite, English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area 1738 Comment
  UC618799  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1938-7-15 11257 Siskiyou Wagon Camp Mount Shasta (creek in upper meadow) Comment
  RSA0004442  Epilobium jucundum Edward L. Greene 1876-08 s.n. Siskiyou Scott Valley. Comment
  SEINET6644398 Image available Epilobium minutum A. A. Heller 1905-1 7930 Siskiyou Upper Soda Spring Comment
  RSA237397  Epilobium minutum Frederick W. Oettinger 1969-7-11 981 Siskiyou Little Medicine Mountain, north of Hancock Lake. Salmon Mtns. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  SEINET3149901  Epilobium paniculatum G. D. Butler 1910-7-3 1629 Siskiyou Goosenest foothills 1219 Comment
  SD75842  Epilobium paniculatum var. jucundum Darley F. Howe 1969-8-31 4674 Siskiyou 7.0 miles north of Weed on road to Yreka. 1006 Comment
  CHSC63407  Epilobium siskiyouense Vernon H. Oswald; Lowell Ahart 1994-7-11 6405 Siskiyou Gumboot Lake Rd. (40N37) just S of Forest Rd. 26 (to Mt. Shasta), W of Dunsmuir. Roadside bank. 1777 Comment
  UC637055  Equisetum arvense Edward Lee 1934-8-13 1077 Siskiyou watershed of W Branch of Indian Creek (Happy Camp - Waldo (Oregon) Rd.); Klamath Nat'l Forest 1371 Comment
  UCR142758  Eragrostis cilianensis L. C. Wheeler 1934-10-24 3346 Siskiyou Siskiyou Mtns, Oak Knoll Ranger Station, Klamath River 671 Comment
  HSC102713  Eragrostis pectinacea var. pectinacea J. P. Smith 2013-6-18 13746 Siskiyou Camp Creek Recreation Area. 723 Comment
  HSC619  Eremogone congesta William J. Ferlatte 1966-8-5 330 Siskiyou N side of Caribou Mtn. 1982 Comment
  CAS-BOT-BC168331  Eremogone congesta var. congesta A. A. Heller 1918-7-16 13031 Siskiyou Mt. Eddy, west of Sisson 2133 Comment
  CAS-BOT-BC168335  Eremogone congesta var. congesta John Thomas Howell 1937-7-24 13426 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC168849  Eremogone congesta var. congesta Edna Kelsey 1961-8-1 s.n. Siskiyou Shackleford Trail below Bull Meadow, Marble Mts. Comment
  CAS-BOT-BC174223  Eremogone congesta var. congesta Louis C. Wheeler 1934-8-2 3023 Siskiyou Head of Jaynes Canyon, Siskiyou Mts. 2072 Comment
  CAS-BOT-BC168329  Eremogone congesta var. congesta A. A. Heller 1915-8-26 12228 Siskiyou Near the source of Wagon Creek, Mt. Eddy 2590 Comment
  HSC29467  Eremogone congesta var. congesta Frederick W. Oettinger 1969-8-4 395 Siskiyou Marble Mtn. Wilderness Area, trail break on Crapo Peak ridge 2195 Comment
  UC1538953  Eriastrum signatum Ann Hale 1987-7-19 Siskiyou near Lake Shastina; Lake Shastina Quad., south end of Shasta Valley 883 Comment
  SEINET7846069 Image available Ericameria bloomeri M. J. Williams 1985-8-14 85- 69 -1 Siskiyou SE side of Medicine Lake 2286 Comment
  SFV8418  Ericameria bloomeri J. M. Tucker 1968-9-14 4143 Siskiyou State Highway 89, 7 miles east of McCloud. Comment
  CAS-BOT-BC287491  Ericameria greenei Louis C. Wheeler 1934-9-2 3238 Siskiyou Miller Glade, Siskiyou Mts 1828 Comment
  CAS-BOT-BC294302  Ericameria nauseosa var. speciosa Doris K. Kildale 1928-7-4 5499 Siskiyou Summit of divide between Salmon River and Scott Valley Comment
  HSC35787  Ericameria nauseosa var. speciosa J. O. Sawyer 1968-9-13 759 Siskiyou Baldy Mtn. W of Happy Camp 1768 Comment
  UC134757  Ericameria nauseosa var. speciosa E. B. Copeland 1903-10-10 3785 Siskiyou Pacific Coast, Mt. Eddy 2225 Comment
  CAS-BOT-BC294309  Ericameria nauseosa var. speciosa W. R. Dudley 1901-8-25 s.n. Siskiyou Top of divide, Salmon to Scotts Creek, Salmon Mts. Comment
  SBBG30614  Erigeron D. Myrick 1968-6-27 2039 Siskiyou Mtn Meadow Ranch, Big Flat, head of Coffee Crk, Trinity Alps 1524 Comment
  CAS-BOT-BC293499  Erigeron aliceae J. M. Tucker; L. K. Mann; S. L. Holloway 1963-8-18 3748 Siskiyou Upper Canyon Creek, ca. 1/2 mile northeast of the Marble Valley Guard Station, Marble Mountain Wilderness Area 1920 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
  UC163908  Erigeron aliceae Geo. D. Butler 1910-7-8 1653 Siskiyou Shackleford Creek 1371 Comment
  UCR266169  Erigeron aliceae David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains, Klamath National Forest, Rye Patch Creek Trail 1700 Comment
  CHSC57412  Erigeron bloomeri var. bloomeri L. P. Janeway 1984-6-22 874 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. 1645 Comment
  HSC75806  Erigeron bloomeri var. bloomeri J. P. Smith, Thomas W. Nelson 1979-6-15 10122 Siskiyou Klamath National Forest, road to Carmen Lake, 0.6 mi. from its junction with Hwy. 3 1646 Comment
  RSA455855  Erigeron bloomeri var. pubens M. B. Dunkle 1945-1 9357 Siskiyou Klamath National Forest, Marble Mountains. 1982 Comment
  CAS-BOT-BC294908  Erigeron chrysopsidis var. austiniae Gilbert J. Muth 1969-8-6 1216 Siskiyou Boulder Peak Comment
  UC585086  Erigeron filifolius E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1955 Siskiyou about 2 mi s Sheep Rock (n slope of Mt. Shasta on highway from Bray to Weed); Mt. Shasta 1249 Comment
  HSC67699  Erigeron foliosus var. confinis Maralyn A. Renner 1980-8-8 2470 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  POM357595  Erigeron foliosus var. foliosus M. B. Dunkle 1945-07 9244 Siskiyou Klamath National Forest; Marble Mts. Comment
  OBI80360  Erigeron glacialis David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  CAS-BOT-BC300856  Erigeron glacialis var. glacialis Annie M. Alexander; Louise Kellogg 1949-7-19 5807 Siskiyou Paradise Lake, Marble Mountains 1920 Comment
  HSC19465  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-18 1980 Siskiyou S of S Sugar Lake 2104 Comment
  HSC2408  Erigeron glacialis var. glacialis William J. Ferlatte 1966-8-5 336 Siskiyou Caribou Mtn. 2470 Comment
  HSC29236  Erigeron glacialis var. glacialis Frederick W. Oettinger 1968-8-23 609 Siskiyou Marble Mtn. Wilderness Area, flats between the rocky ridges on Shasta Ridge, due SE of Diamond Lake 2043 Comment
  CAS-BOT-BC295385  Erigeron inornatus A. A. Heller 1914-8-25 11717 Siskiyou Near Deetz station opposite Black Butte 1158 Comment
  CAS-BOT-BC295387  Erigeron inornatus L. E. Smith 1914-7-6 749 Siskiyou Sisson Comment
  CAS-BOT-BC295390  Erigeron inornatus L. E. Smith 1913-7-24 490 Siskiyou McCloud Comment
  JEPS41427  Erigeron inornatus var. inornatus Duncan Dunning 1921-7-16 Siskiyou nw of Hambone; Mt. Shasta, Toad Mountain Comment
  RSA238778  Erigeron inornatus var. inornatus Frederick W. Oettinger, R. F. Thorne 1969-8-5 1197 Siskiyou Along the trail above 'Willow Springs' (between Abbotts Upper Cabin and English Lake) 1677 Comment
  UC637132  Erigeron klamathensis Edward Lee 1934-8-14 1109 Siskiyou near summit Little Grayback (Siskiyou-Del Norte County line) 1859 Comment
  UC1023731  Erigeron nivalis W. Bridge Cooke 1941-8-14 16180 Siskiyou on ridges n of Horse Camp; Mount Shasta 2743 Comment
  CHSC67468  Erigeron petrophilus var. viscidulus James D. Jokerst 1992-7-30 3432 Siskiyou Camp above Tamarack Flat, NW of Mt. Eddy. Comment
  UC336095  Erigeron petrophilus var. viscidulus unknown Siskiyou side of Mt. Shasta Comment
  CAS-BOT-BC300109  Erigeron pumilus A. A. Heller 1938-7-12 15261 a Siskiyou Near the eastern base of Deer Mountain on U. S. Highway #97 Comment
  UC1212588  Erigeron strigosus var. septentrionalis Francia Chisaki and Helen Sharsmith 1960-8-20 4739 Siskiyou on Wildcat Creek road ca 4 mi w Callahan; Inner North Coast Ranges 1066 Comment
  HSC92398  Erigeron tener Jennifer Whipple 1977-8-5 2193 Siskiyou Near Little Crater Lake 2195 Comment
  RSA0020049  Eriogonum Anthony Baniaga 2011-7-8 430 Siskiyou Klamath National Forest. Along Salmon River, on Highway 93. 694 Comment
  CDA22485  Eriogonum compositum F. D. Horn 1977-5-12 Siskiyou Highway 263, Shasta River Canyon, Yreka. 0 Comment
  CAS-BOT-BC248844  Eriogonum compositum var. compositum Roxana S. Ferris; Laura Lorraine 1948-6-12 11763 Siskiyou East fork of Scott River one mile north of Callahan Comment
  SEINET11937883  Eriogonum congdonii Unknown 1953-1 124 Siskiyou Blue Point, Scott Mt. Public Campground, Klamath Nat'l Forest 1631 Comment
  RSA279588  Eriogonum diclinum James L. Reveal 1975-8-15 3956 Siskiyou Sisikiyou Mountains; Klamathe Nat'l Forest; along the Dry Lake Lookout Road ( FSR 40S01) 0.5 mile west of Dry Lake Lookout near the Buckhorn Trail. 2043 Comment
  CHSC1318  Eriogonum douglasii var. meridionale V. Holt 1943-8-7 Siskiyou Marble Mountains. 2164 Comment
  CAS-BOT-BC255726  Eriogonum elatum var. elatum John Thomas Howell 1937-7-21 13154 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC255761  Eriogonum elatum var. villosum Dorothy Parker 1948-8-5 172 Siskiyou Plowman's Valley, e. fork of Scott River 1188 Comment
  JEPS83630  Eriogonum hirtellum R. Raiche 1987-7-28 70543 Siskiyou between Polar Bear Mt. and Lookout Mountain (at Del Norte Co. line); Polar Bear Gap 1737 Comment
  SD53392  Eriogonum hirtellum Darley F. Howe 1962-8-4 3385 Siskiyou Baldy Mt. 1431 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
  CAS-BOT-BC263664  Eriogonum luteolum var. luteolum Ella Dales Cantelow 1938-10-23 2380 Siskiyou 16 mi. N W of Yreka, Hy. #96 Klamath River Comment
  CAS-BOT-BC419707  Eriogonum marifolium Twyla Miller 2012-8-6 s.n. Siskiyou Mt. Shasta; adjacent to Everitt Memorial Highway near Panther Meadow Campground. Comment
  HSC43462  Eriogonum marifolium Jennifer Whipple 1976-6-18 1042 Siskiyou W facing slope of the ridge between Durney Lake and Little Crater 2378 Comment
  HSC43465  Eriogonum marifolium Jennifer Whipple 1977-7-20 1980 Siskiyou S face of Mt. Eddy draining into the N Fork of Sacramento River 2470 Comment
  SD23787  Eriogonum marifolium Wm. Bridge Cooke 1938-9-8 11614 Siskiyou Mt. Shasts, glacial meadow 2438 Comment
  SD53333  Eriogonum marifolium D. F. Howe 1962-8-6 3406 Siskiyou Mt. Shasta 2438 Comment
  UC1949265  Eriogonum marifolium Barbara Ertter 1990-7-16 9382 Siskiyou NW side of Mt Eddy ca 8 airmiles SW of Weed, ca 2 mi E of Parks Cr trailhead (= crest of Rt 17) along ridge Comment
  CAS-BOT-BC263183  Eriogonum marifolium var. cupulatum Mrs. H. C. Cantelow 1939-6-10 s.n. Siskiyou McCloud 991 Comment
  CAS-BOT-BC267389  Eriogonum marifolium var. marifolium H. K. Wagnon 1957-8-11 1696 Siskiyou East slope of Mt. Shasta along Brewer Cr. 6 mi. West of Military Pass Rd. Comment
  RSA800279  Eriogonum marifolium var. marifolium Rebecca Wenk 2008-7-23 904 Siskiyou Southwest side of Mount Shasta, trail from Bunny Flat to Sierra Club Cabin above Avalanche Gulch. 2119 Comment
  CDA22628  Eriogonum nudum var. nudum T. C. Fuller 1962-8-3 9504 Siskiyou Siskiyou Mountains; 200 yards up Raggedass Gulch, east of Beaver Creek, 5 miles north of the Klamath River. 0 Comment
  HSC43401  Eriogonum nudum var. nudum K. T. Stillman 1976-7-14 241 Siskiyou Marble Mtn. Wilderness Area, E ridge down to Elk Valley 2073 Comment
  HSC78317  Eriogonum nudum var. nudum L. P. Janeway 1983-8-28 643 Siskiyou Poker Flat, dry NE edge of lower portion of meadow 1524 Comment
  RSA601442  Eriogonum nudum var. oblongifolium Louis C. Wheeler 1935-6-29 3624 Siskiyou Yreka. 808 Comment
  CAS-BOT-BC272488  Eriogonum nudum var. pubiflorum Geo. D. Butler 1908-7-5 213 Siskiyou Near Yreka 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-BC252958  Eriogonum pyrolifolium var. pyrolifolium C. G. Pringle 1881-8-24 s.n. Siskiyou Mount Shasta 2438 Comment
  UC2062600  Eriogonum pyrolifolium var. pyrolifolium Belinda Lo with Alex Randolph-Lowe 2017-8-25 363 Siskiyou SISKIYOU COUNTY: Ash Creek Butte, west of the peak. Comment
  RSA202123  Eriogonum pyrolifolium var. pyrolifolium C. F. Lagace 1966-8-24 s.n. Siskiyou Mount Shasta Ski Lodge. 2409 Comment
  HSC17400  Eriogonum roseum C. B. Wolf 1927-8-26 1082 Siskiyou Klamath River, 14 mi. above Happy Camp Comment
  CAS-BOT-BC267706  Eriogonum roseum Louis C. Wheeler 1934-9-19 3282 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  UC1324597  Eriogonum spergulinum var. reddingianum W. B. and V. G. Cooke 1966-7-17 37249 Siskiyou vicinity Inconstance Creek (meadow openings along Military Pass Road); Mt. Shasta 1828 Comment
  RSA126681  Eriogonum sphaerocephalum Peter H. Raven 1957-9-4 10375 Siskiyou Slope of metamorphic rocks, Sacromento-Trinity Pass south of Mout Eddy. 2256 Comment
  HSC17426  Eriogonum strictum var. anserinum R. C. Wunner 1965-6-7 127 Siskiyou Lava Beds National Monument, near Dragon Head Cave 1364 Comment
  CAS-BOT-BC263393  Eriogonum strictum var. proliferum Geo. D. Butler 1910-5-27 1417 Siskiyou Near Yreka Comment
  JEPS56425  Eriogonum strictum var. proliferum W. L. Jepson 1940-6-23 19980 Siskiyou Yreka 822 Comment
  UCD101201  Eriogonum strictum var. proliferum Dean William Taylor; G. Ledyard Stebbins 1972-7-4 1623 Siskiyou along Highway 3, about 3 miles east of Etna. 1066 Comment
  SBBG27992  Eriogonum ternatum L. C. Wheeler 1934-9-1 3235 Siskiyou Jaynes Cyn, Siskiyou Mtns 1950 Comment
  CAS-BOT-BC94549  Eriogonum umbellatum R. C. Wenk 2006-9-2 545 Siskiyou trail to Caribou Lakes from Big Flat Meadow. Dry granite talus area by side of trail, above Big Conrad Gulch 1950 Comment
  HSC61798  Eriogonum umbellatum Ruby Van Deventer 9 Aug [year missing] Siskiyou Poker Flat 1585 Comment
  SEINET10904464  Eriogonum umbellatum subsp. polyanthum Mary Susan Taylor 1980-8-19 Taylor 3267 Siskiyou T43N R2E se sec 23, Medicine Lake quad. Shasta-Trinity Natl Forest, in pumice, on Paint Pot Crater. With J. Prouty & E. Heinz. 1920 Comment
  JEPS74482  Eriogonum umbellatum var. argus W. J. Ferlatte 1966-8-2 240 Siskiyou wooded area near public camp (Big Flat); Trinity Alps, Big Flat 1524 Comment
  UC163832  Eriogonum umbellatum var. argus Geo. D. Butler 1909-8-3 209 Siskiyou Log Lake, Shackleford Creek Comment
  UC6562  Eriogonum umbellatum var. dumosum C. B. Bradley 1897-1 Siskiyou Comment
  CAS-BOT-BC268151  Eriogonum umbellatum var. humistratum Dorothy Parker 1948-8-16 182 Siskiyou Near summit of Salmon Mountain 1813 Comment
  JEPS56219  Eriogonum umbellatum var. nelsoniorum W. L. Jepson 1937-7-30 18542 Siskiyou headwaters of Indian Creek Siskiyou Mts., Poker Flat, Indian Creek 1584 Comment
Read comments
Sep 9 2008
  RSA165616  Eriogonum umbellatum var. nelsoniorum Clare B. Hardham 1961-6-30 7995 Siskiyou Near White Mt. Comment
  UCD101401  Eriogonum umbellatum var. nevadense J. M. Tucker; L. K. Mann 1963-8-18 3761 Siskiyou On top of saddle, between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area. 2103 Comment
  SEINET3160094  Eriogonum vimineum G. D. Butler 1910-7-31 1806 Siskiyou near Yreka Comment
  CAS-BOT-BC262385  Eriogonum vimineum Louis C. Wheeler 1934-6-28 2811 Siskiyou Klamath National Forest. Beaver Cr. 701 Comment
  POM267114B  Eriogonum vimineum L. S. Rose 1941-8-28 41429 Siskiyou Macdoel 1220 Comment
  OBI80237  Eriophyllum lanatum David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  SBBG8171  Eriophyllum lanatum H. and M. Dearing 1939-7-1 3784 Siskiyou Salmon Mtn 1828 Comment
  SEINET10953204  Eriophyllum lanatum Melvin L. Conrad, David B. Dunn; Katherine L. Morris 1973-6-1 Conrad 6966 Siskiyou Oak-Juniper Woodland at margin of Klamath River, 2 miles south of Hornbrook. 701 Comment
  CAS-BOT-BC301116  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-7-24 10758 Siskiyou Castle Lake Comment
  UC896369  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-20 12479 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  JEPS34485  Eriophyllum lanatum var. grandiflorum Willis L. Jepson Jul 24 1894-Aug 10 1894 14571 Siskiyou Shasta Springs Upper Sacramento region, Shasta Springs Comment
  POM214005  Eriophyllum lanatum var. grandiflorum Isabelle C. Kimber 1934-6-9 26 Siskiyou Steelbridge Camp, Sacramento River just above confluence with Ney Creek. 732 Comment
  UC563835  Eriophyllum lanatum var. integrifolium Elmer I. Applegate 1935-6-10 9490 Siskiyou s cinder slope of Caldwell Butte; Lava Beds National Monument Comment
  UC60935  Eriophyllum lanatum var. integrifolium Geo. B. Grant 1902-9-1 5228 Siskiyou Shasta Springs Mount Shasta 609 Comment
  CAS-BOT-BC301715  Eriophyllum lanatum var. lanceolatum J. M. Tucker; L. K. Mann 1963-8-18 3763 Siskiyou Between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area 2103 Comment
  CAS-BOT-BC94802  Eriophyllum lanatum var. lanceolatum R. C. Wenk 2008-7-24 939 Siskiyou Kangaroo Lake, S of Gazelle-Callahan Road, top of ridge S of lake 1981 Comment
  HSC58871  Eriophyllum lanatum var. lanceolatum Marvin Butler 1971-8-31 332 Siskiyou Near Youngs Valley, close to the town of Cave Junction 1403 Comment
  RSA78806  Eriophyllum lanatum var. lanceolatum P. A. Munz 1952-7-3 17920 Siskiyou Ft. Goff Public Camp, Klamath River 366 Comment
  CAS-BOT-BC301717  Eriophyllum lanatum var. lanceolatum Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Comment
  SEINET8687384 Image available Eriophyllum lanatum var. lanceolatum G. D. Butler 1910-6-23 1602 Siskiyou Yreka Creek Comment
  JEPS110491  Eryngium alismifolium Robert E. Preston 2005-7-1 2358 Siskiyou 3.3 mi E of Granada, along County Rd A12. 787 Comment
  UC1559632  Eryngium mathiasiae Beth Corbin 1989-7-10 515 Siskiyou 1 mi. s.e. Adobe Flat (ca. 14 air miles n. of Fall River Mills); Lassen Nat'l Forest 1097 Comment
  UC166606  Erysimum capitatum Geo. D. Butler 1909-5-8 724 Siskiyou dry hill near Yreka Comment
  RSA59507  Erysimum capitatum E. K. Balls 1950-5-16 14707 Siskiyou About Caldwell Caves, Lava Beds Nat l Monument. 1555 Comment
  HSC69046  Erysimum perenne Maralyn A. Renner 1980-8-7 2343 Siskiyou Ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  UC1037378  Erysimum perenne Douglas Barbe 1955-7-6 116 Siskiyou along ne shore Taylor Lake; Klamath Mountains, Salmon Mountains 1950 Comment
  SEINET12044932  Erythronium citrinum E. I. Applegate 1932-1 7059 Siskiyou Quartz Valley, near Fort Jones Comment
  CAS-BOT-BC502724  Erythronium grandiflorum G. J. Muth 1969-8-8 1286 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  JEPS50833  Erythronium grandiflorum Theodore Niehaus 1967-7-3 769 Siskiyou Sky High Lakes Marble Mt. Wilderness Area Comment
  HSC18984  Erythronium grandiflorum subsp. grandiflorum G. L. Clifton 1979-7-1 6175 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  POM109641  Erythronium grandiflorum subsp. grandiflorum Geo D. Butler 1910-7-9 1715 Siskiyou Marble Mountain. 1829 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
  CAS-BOT-BC403683  Eschscholzia californica Elmer I. Applegate 1935-6-12 9523 Siskiyou South slope of Caldwell Butte, Lava Beds National Monument Comment
  JEPS124522 Image available Eschscholzia californica J. Yamanaka 1965-7-13 137 Siskiyou McCloud Highway 89 m. Center of town. Comment
  POM125700  Eschscholzia californica var. crocea Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka. Comment
  UCD21471  Eucephalus ledophyllus Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1211 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. Near shore of Upper Gray Rock Lake. 1912 Comment
  HSC25665  Eucephalus ledophyllus var. ledophyllus J. O. Sawyer 1969-9-12 2010 Siskiyou Hanging valley N of Wildcat Peak 2012 Comment
  HSC62120  Eucephalus ledophyllus var. ledophyllus Al Hobart 6 Aug [year missing] Siskiyou Preston Pk. 1890 Comment
  HSC695  Eucephalus ledophyllus var. ledophyllus William J. Ferlatte 1967-8-23 1108 Siskiyou Head of Kidd Creek 2134 Comment
  CAS-BOT-BC310478  Eucephalus tomentellus A. A. Heller 1915-8-26 12242 Siskiyou Slope north side of Mt. Eddy 1767 Comment
  CAS-BOT-BC202764  Euonymus occidentalis Geo. D. Butler 1908-8-22 407 Siskiyou Eldredge's Corral, Russian Creek Comment
  RSA275330  Euonymus occidentalis J. O. Sawyer, K. T. Stillman 1976-7-1 2772 Siskiyou Along the Little North Fork of the Salmon River 732 Comment
  RSA120927  Euphorbia crenulata Milo S. Baker, Douglas Barbe, H. K. Wagnon 1957-6-15 13104 Siskiyou Just south of Weed. Comment
  CAS-BOT-BC310632  Eurybia radulina John Thomas Howell 1939-8-9 15246 Siskiyou Shackleford Creek Trail, Marble Mts. Comment
  SEINET8687815 Image available Eurybia radulina G. D. Butler 1910-7-20 1729 Siskiyou Goosenest foothills 1524 Comment
  CAS-BOT-BC310639  Eurybia radulina Doris K. Kildale 1929-8-7 8953 Siskiyou Base of K_by [?] Peak 457 Comment
  CAS-BOT-BC459230  Euthamia occidentalis Geo. D. Butler 1910-8-27 1859 Siskiyou Oro Fino Comment
  CAS-BOT-BC413903  Fallopia convolvulus Henry M. Pollard 1947-8-20 s.n. Siskiyou Spink's Ranch, Roger's Creek, nr. Somes Bar Comment
  HSC42973  Festuca californica J. O. Sawyer, K. T. Stillman 1976-5-29 2742 Siskiyou Along Specimen Creek 915 Comment
  RSA273423  Festuca californica var. californica J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5735 Siskiyou 2.0 miles south of Sugar Creek on Parrott Mill Road. 1341 Comment
  CAS-BOT-BC278736  Festuca idahoensis Elmer I. Applegate 1935-6-10 9464 Siskiyou Indian Well, Lava Beds National Monument Comment
  HSC100334  Festuca idahoensis J. P. Smith 2011-7-15 13302 Siskiyou 1427 Comment
  RSA211385  Festuca idahoensis William J. Ferlatte 1966-8-3 251 Siskiyou Trinity Alps: Big Flat, wooded area near public camp. 1524 Comment
  UCD66385  Festuca idahoensis Mr. Roseman 1913-1 24 Siskiyou Butte Valley. Comment
  SEINET10864166  Festuca roemeri Barbara L. Wilson 1996-6-22 Wilson 8172 Siskiyou 0.9 miles from the Gazelle Rd on the Stewart Springs Rd (Forest Service Rd 17), at the first bend in the road, ca. 3.5 miles W and 1 mile N of weed; T42N R5W S32 SW1/4. Comment
  CAS-BOT-BC279068  Festuca rubra Melissa A. Berry 1957-7-8 s.n. Siskiyou South Russian Creek at Power House 822 Comment
  CAS-BOT-BC279073  Festuca rubra David D. Keck 1949-7-19 6357 Siskiyou 6.5 mi. SW of Yreka on road to Ft. Jones, nr. head of Yreka Creek 1127 Comment
  HSC26128  Festuca subuliflora J. P. Smith, Steve Selva 1970-6-14 3878 Siskiyou Road to Steinacher Creek near Somes Bar. Comment
  RSA47798  Fragaria californica Roxana S. Ferris, Laura Lorraine 1948-6-12 11741 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  UC166620  Fragaria vesca Geo. D. Butler 1908-6-27 496 Siskiyou Forest House Mountain Comment
  UC618840  Fragaria vesca unknown 1938-6-24 11079 Siskiyou MacBride Springs; Mount Shasta Comment
  CAS-BOT-BC457571  Fragaria vesca subsp. californica Clarence R. Quick 1959-6-19 59 - 21 Siskiyou 6.7 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  UC54341  Fragaria virginiana subsp. platypetala H. M. Hall and E. B. Babcock 1903-6-18 4135 Siskiyou Pole Canyon Sierra Nevada Mountains (ne Shasta County) 1463 Comment
  CAS-BOT-BC53412  Frangula californica subsp. occidentalis Copeland 1903-9-6 3863 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC59598  Frangula rubra subsp. rubra A. A. Heller 1905-6-22 8087 Siskiyou Between Igerna and Weed 1158 Comment
  CAS-BOT-BC376592  Fraxinus dipetala Andrew Townesmith; Karen M. Meyer 2007-8-3 894 Siskiyou Klamath National Forest, Oak Knoll Ranger District. Along state route 96, 5.2 miles west of National Forest boundary. Vicinity of Cayuse Day Use Area 576 Comment
  RSA134341  Fraxinus latifolia Percy C. Everett, E. K. Balls 1959-10-24 23948 Siskiyou 3.3 mi NW from Forks along Salmon River, Sawyers Bar to Somesbar. 366 Comment
  HSC35064  Fritillaria affinis J. P. Smith 1974-5-25 7645 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  UC1409213  Fritillaria atropurpurea Frederick W. Oettinger 1969-7-9 943 Siskiyou nw of Upper English Lake (vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1798 Comment
  CAS-BOT-BC502838  Fritillaria atropurpurea Wm. F. Herrin 1922-5-1 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC502842  Fritillaria atropurpurea Geo. D. Butler 1910-5-1 1261 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC506212  Fritillaria pudica F. M. Anderson 1896-4-1 s.n. Siskiyou Near Yreka Comment
  HSC61793  Galium bifolium Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  JEPS6707  Galium bolanderi Geo. D. Butler 1908-6-28 414 Siskiyou roadside Oro Fino Comment
  UC223987  Galium bolanderi Dr. Edward Palmer Jul 15 1892-Jul 27 1892 2498 Siskiyou Mount Shasta and vicinity Comment
  UC416635  Galium bolanderi Milo S. Baker 1899-7-17 Siskiyou Lava Beds Fall River Valley Comment
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Jan 16 2007
  UCR21104  Galium boreale T. W. Fisher, R. E. Orth, Earl Oatman 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  HSC90594  Galium glabrescens subsp. glabrescens Jennifer Whipple 1977-7-22 2036 Siskiyou Mt. Eddy, Dobkins Lake drainage on E facing slopes above Dobkins Lake 2256 Comment
  UCD121766  Galium grayanum J. M. Tucker; L. K. Mann and Sandra L. Holloway 1963-8-18 3755 Siskiyou Southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area. 2133 Comment
  JEPS88934  Galium oreganum Joseph P. Tracy 1951-6-16 19504 Siskiyou at crossing of Takilma-Happy Camp Road (near State Line, summit of Siskiyous); Siskiyous Comment
  UC618722  Galium trifidum W. Bridge Cooke 1938-7-29 11414 Siskiyou in narrow stream between two meadows Mt. Shasta, Wagon Camp Comment
  RSA276855  Galium trifidum Peter Rubtzoff 1955-7-10 1952 Siskiyou Duncans Mills Marsh Comment
  RSA105415  Galium triflorum G. D. Barbe 1955-6-29 36 Siskiyou 1.8 miles E of Callahan. S bank of Scott River. 976 Comment
  UC637135  Galium triflorum Edward Lee 1934-8-11 1030 Siskiyou Walker Creek (tributary of Klamath River) Seiad Valley (e side of valley) 609 Comment
  HSC69745  Garrya buxifolia John Palmer 1980-7-23 571 Siskiyou Past Elbow Springs at end of USFS Rd. 15N19 1220 Comment
  CAS-BOT-BC182154  Garrya fremontii Baki Kasapligil 1981-7-26 6189 Siskiyou Between road junction going to Bolan Lake (glacier lake) Comment
  CAS-BOT-BC182271  Garrya fremontii Alice Eastwood 1921-7-24 10712 Siskiyou Castle Lake Comment
  CAS-BOT-BC182277  Garrya fremontii Geo. D. Butler 1910-6-17 1565 Siskiyou Humbug Mountain Comment
  HSC27595  Garrya fremontii Carl W. Mize 1972-6-21 66 Siskiyou Along main trail 305 Comment
  UC166164  Garrya fremontii Geo. D. Butler 1910-6-17 1565 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC192102  Garrya fremontii C. Hart Merriam 1919-9-26 s.n. Siskiyou Deer Creek, Klamath Canyon (7 miles below Beswick) Comment
  SEINET5765232  Garrya fremontii L. C. Wheeler 1934-6-22 2764 Siskiyou Cottonwood Creek, Siskiyou Mts. 1067 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
  HSC34828  Gayophytum diffusum subsp. parviflorum J. P. Smith, J. O. Sawyer 1975-10-23 8487 Siskiyou 1768 Comment
  POM313456  Gayophytum diffusum subsp. parviflorum Paul C. Hutchison 1962-8-3 946 Siskiyou Just east of Paint Pot Crater between Grasshopper Flat and Little Medicine Lake 1784 Comment
  POM355373  Gayophytum diffusum subsp. parviflorum Louis C. Wheeler 1934-7-5 2890 Siskiyou Hungry Creek. Siskiyou Mtns. Mt. Diablo Meridian. 1372 Comment
  RSA34393  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1947-8-9 17791 Siskiyou Around Horse Camp, Mount Shasta. 2439 Comment
  UC1409236  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1969-8-12 1351 Siskiyou on English Lake Trail above Willow Spring (w Siskiyou Co., high lake basins in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  SEINET7040084  Gayophytum ramosissimum A. G. Vestal 1963-6-1 s.n. Siskiyou Road to Lake Shastina [Dwinnell Reservoir]. Lake Shastina Quad. UTM Zone 10, 548843mE, 4594393mN Comment
  HSC91302  Gentiana newberryi Jennifer Whipple 1976-7-24 1562 Siskiyou Mt. Eddy, SW of Dobkins Lake 2256 Comment
  UC334251  Gentiana newberryi unknown Siskiyou near Shasta; Sierra Comment
  SEINET8586417  Gentiana newberryi M. J. Williams 1967-9-2 s.n. Siskiyou Mount Eddy, Deadfall Lake Trail. 1951 Comment
  SEINET881860 Image available Gentiana plurisetosa S. K. Harris, C. C. Harris 1939-1 976 Siskiyou Half Moon Meadow, Marble Mt. Primitive Area. 1670 Comment
  CAS-BOT-BC459352  Geum aleppicum Donald Myrick 1961-6-20 277 Siskiyou On road to Bear Springs, east of Mt. Shasta City 1371 Comment
  UC618838  Geum macrophyllum W. Bridge Cooke 1938-7-1 11119 Siskiyou Mount Shasta, Bear Springs Bear Springs; Mount Shasta, Bear Springs 1524 Comment
  RSA469337  Gilia capitata M. B. Dunkle 1945-1 9328 Siskiyou Klamath National Forest, Marble Mountains 2439 Comment
  RSA78824  Gilia capitata P. A. Munz 1952-7-2 17902 Siskiyou Baldy Mountain about 6 miles (by air) west of Happy Camp. 1707 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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Feb 9 2009
  UC1409306  Gilia capitata subsp. capitata Frederick W. Oettinger 1968-8-16 536 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 2057 Comment
  UC52694  Gilia clivorum F. W. Hooper Siskiyou Little Shasta Comment
  CAS-BOT-BC282721  Glyceria elata Alice Eastwood 1921-7-31 s.n. Siskiyou Shasta Springs Comment
  HSC26629  Glyceria elata J. P. Smith, Steve Selva 1970-6-16 4061 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  UC618879  Glyceria elata unknown 1938-6-24 11083 Siskiyou MacBride Spring; Mount Shasta Comment
  POM198422  Glyceria striata Geo D. Butler 1910-7-14 1780 Siskiyou Shackleford Creek. 1220 Comment
  RSA239001  Glyceria striata Frederick W. Oettinger 1968-9-2 665 Siskiyou Southwest of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  UC74051  Gnaphalium palustre T. H. Gilbert June 15 1899 - July 15 1899 Siskiyou Scott River Valley Comment
  UC896940  Gnaphalium palustre A. A. Heller 1915-8-24 11211 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  POM4641  Gnaphalium palustre Copeland 1903-10-5 3826 Siskiyou Igerna. Comment
  HSC68458  Goodyera oblongifolia Maralyn A. Renner 1980-7-4 1437 Siskiyou Clear Creek Trail, N of Trout Camp. 1037 Comment
  POM168319  Goodyera oblongifolia E. B. Copeland 1903-8-19 3929 Siskiyou Mt. Eddy 1372 Comment
  UC1585405  Goodyera oblongifolia R. Raiche, K. Zadnik and H. Forbes 1989-3-10 Siskiyou at Cook and Green Pass, Siead Valley Road, [UCBG 55] Green Pass; Siead Valley Road, Cook Pass, Green Pass 1425 Comment
  RSA675587  Grindelia camporum F. R. Schallert 1953-8-10 3131 Siskiyou Below Mt. Shasta. Comment
  SEINET10615475 Image available Grindelia nana var. nana A. Arthur Heller 1917-9-7 Heller 12979 Siskiyou Shasta valley ten miles south of Gazelle in gravelly soil at the base of a hill. 914 Comment
  CAS-BOT-BC388473  Gypsophila paniculata L. E. Smith 1912-7-1 s.n. Siskiyou Yreka Comment
  JEPS84099  Hackelia californica L. R. Heckard with J. Hickman et al. 1986-7-17 6528 Siskiyou above and s of Alex Hole (n of Hwy 96); Buckhorn Campground Comment
  UCD119376  Hackelia californica K. M. Meyer; A. Townesmith 2007-7-29 170 Siskiyou Shasta-Trinity National Forest. 0.3 mi. on 40N25 Rd., off Siskiyou County Rd., A10/Everitt Memorial Hwy. 1805 Comment
  UCSB15833  Hackelia californica Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Mountains 1127 Comment
  CAS-BOT-BC419705  Hackelia californica J. K. Nelson 2010-9-4 2010 -030 Siskiyou South slope of Mt. Shasta 1325 Comment
  UC1483457  Hastingsia alba Maralyn A. Renner 1980-6-25 1093 Siskiyou West Fork Little South Fork Indian Creek Preston Pk Quad. Klamath Natl For, Little S Fk Indian Creek (Klamath National Forest) 1219 Comment
  RSA114964  Hastingsia alba E. K. Balls, Lee W. Lenz 1956-6-18 21720 Siskiyou 5.7 miles southeast of Gazelle, U.S. Highway 99, Yreka to Dunsmuir 884 Comment
  CAS-BOT-BC302429  Hazardia whitneyi Alice Eastwood 1912-8-30 2053 Siskiyou Mount Eddy Comment
  JEPS112688  Hazardia whitneyi var. discoidea Dean W. Taylor 1999-8-12 17352 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley) 1889 Comment
  UC165252  Helenium autumnale Geo. D. Butler 1908-8-30 319 Siskiyou near Fort Jones; Scott River Comment
  CAS-BOT-BC383119  Helenium bigelovii Andrew Townesmith; Karen M. Meyer 2007-7-28 865 Siskiyou Shasta-Trinity National Forest. At the intersection of Forest Service route 26 and Forest Service road 40N33, 6.0 miles west of forest boundary (via route 26) 1441 Comment
  CHSC351  Helenium bigelovii V. Holt 1943-8-14 Siskiyou Marble mountains. 1828 Comment
  HSC62598  Helenium bigelovii Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  RSA261538  Helenium bigelovii J. M. Tucker 1974-7-28 4306 Siskiyou Haypress Meadows, Marble Mtn Wilderness Area 1463 Comment
  UC1619966  Helenium bigelovii Barbara Ertter with Julie Kierstead and Jim Nelson 1990-7-15 9353 Siskiyou 5 air mi due w of Mount Shasta City (Morgan Meadows on e side of Mount Eddy); Mount Eddy, Morgan Meadows 1676 Comment
  UC165255  Helenium bigelovii Geo. D. Butler 1910-7-7 1649 Siskiyou Shackleford Creek 1219 Comment
  UC1034577  Helianthella californica subsp. nevadensis Douglas Barbe 1955-7-26 267 Siskiyou nw slope Scott Mtn (along a dry ditch) 1828 Comment
  HSC81556  Helianthella californica var. nevadensis Thomas W. Nelson, Jane P. Nelson 1980-7-20 6164 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  HSC92731  Helianthella californica var. shastensis Jennifer Whipple 1976-6-30 1204 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  POM55352  Helianthella californica var. shastensis H. M. Hall, E. B. Babcock 1903-06 4056 Siskiyou Near Sisson; Mt. Shasta. 1067 Comment
  CAS-BOT-BC305577  Helianthus bolanderi Geo. B. Grant 1902-9-14 5209 Siskiyou Dunsmuir Comment
  CDA6539  Helianthus bolanderi T. C. Fuller 1958-9-12 Siskiyou 4 miles north of Weed. 0 Comment
  HSC72366  Helianthus bolanderi J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8976 Siskiyou Hwy. 3, 4 mi. N of Siskyou-Trinity Co. line Comment
  CAS-BOT-BC305571  Helianthus bolanderi L. R. Abrams 1927-9-11 12139 Siskiyou Shasta Valley, Yreka to Gazelle Comment
  POM211774  Helianthus bolanderi L. C. Wheeler 1934-10-6 3311 Siskiyou Shasta Valley, 2 mi. SE of Yreka. (Mt. Diable Mer.) 854 Comment
  RSA15801  Helianthus bolanderi C. B. Wolf 1927-8-26 1055 Siskiyou Klamath River. 3 miles below Gottenville P.O. Comment
  RSA298341  Helianthus bolanderi J. P. Smith 1971-9-18 4837 Siskiyou 2 miles west of the jct. of ca. 3 and rd 8 north Callahan. Juniper-Kellogg oak woodland 1037 Comment
  HSC48341  Hemizonella minima Maralyn O'Meara 1974-5-25 413 Siskiyou On Rd. 8, ~4.7 mi. W of junction with Hwy. 3 1159 Comment
  JEPS88984  Hemizonella minima Steve Morrell 1994-6-30 Siskiyou on Rd. 43N03 1/4 mi w Military Pass Road (43N19) (0.4 mi s of Hwy 97); Shasta-Trinity National Forests 1341 Comment
  HSC69727  Heracleum maximum Maralyn A. Renner 1980-7-15 1765 Siskiyou English Lake inlet 1780 Comment
  CHSC105862  Hesperochiron californicus Julie Kierstead Nelson 2010-7-3 2010 -013 Siskiyou Scott Mountain; Road 40N08 from Hwy. 3 at summit to Carmen Lake, at Pacific Crest Trail crossing. On west-facing , rocky slope and on gravel of road. 1676 Comment
  UCD110546  Hesperolinon micranthum Robert E. Preston 1995-6-22 895 Siskiyou Irongate Reservoir, on open slopes w of Mirror Cove. 731 Comment
  JEPS94879  Heterocodon rariflorum Vernon H. Oswald and Lowell Ahart 1998-7-21 9357 Siskiyou ne of Weed (e of Grass Lake, and w of Bray on Old State Highway 0.8 mi e of Tennant road); Old State Highway 1417 Comment
  HSC76903  Heterotheca villosa var. minor K. T. Stillman 1976-9-10 506 Siskiyou Marble Mountain Wilderness Area, across marble on E side of Black Mountain 2104 Comment
  HSC4793  Heuchera merriamii William J. Ferlatte 1966-8-19 454 Siskiyou Head Of Kidd Creek 2134 Comment
  CAS-BOT-BC420704  Heuchera merriamii Doris K. Kildale 1928-8-19 6542 Siskiyou Summit of divide between English Lake and Haverick Lake on trail to Marble Mt. 2194 Comment
  CAS-BOT-BC420935  Heuchera micrantha var. diversifolia A. M. Vollmer; L. Beane 1951-6-2 50 Siskiyou Road betw. Streamline Lodge & Deer Camp, n. of Klamath River Highway Comment
  UC1483516  Hieracium albiflorum John Palmer 1980-8-13 767 Siskiyou near F.S. Rd. 47N44 (from Beaver Creek Road); Klamath National Forest, Condry Mtn. Quad., Dead Cow Creek 1615 Comment
  RSA237531  Hieracium gracile Frederick W. Oettinger, R. F. Thorne 1969-8-4 1163 Siskiyou Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA237532  Hieracium gracile Frederick W. Oettinger 1968-8-8 448 Siskiyou Ridge above Upper English Lake near trail to English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  UC1731305  Hieracium greenei Dean W. Taylor 1997-7-25 15845 Siskiyou Klamath Region, Scott Mountains, Klamath National Forest, Crater Lake in cirque above upper lake Crater Lake; Klamath Region, Scott Mountains, Klamath National Forest 2331 Comment
  UC455911  Hieracium greenei I. J. Condit 1911-7-22 Siskiyou beginning of Shasta trail, near box factory; Sisson Comment
  RSA237430  Hieracium greenei Frederick W. Oettinger 1969-9-5 1685 Siskiyou Next basin east of Salmander Lake Basin, region of Abbott's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  HSC22097  Holodiscus discolor J. O. Sawyer 1969-8-5 1949 Siskiyou Along S Sugar Creek 1921 Comment
  HSC69146  Holodiscus discolor Maralyn A. Renner 1980-8-8 2471 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  RSA50153  Holodiscus discolor E. K. Balls 1949-7-10 13960 Siskiyou 8 miles from Sawyers Bar on way to Cecilville. 793 Comment
  UC1409360  Holodiscus discolor Frederick W. Oettinger 1969-8-19 1448 Siskiyou Ridge from Arrow Peak to King David Peak (High Lake Basins in vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1950 Comment
  UC1951318  Holodiscus discolor Robert F. Thorne and Fred Oettinger 1969-8-4 63384 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Near crest of ridge above English Lake, along trail to Hancock Lake. Comment
  CHSC1554  Holodiscus microphyllus var. glabrescens N. Jaekel; K. Jaekel 1939-7-29 Siskiyou Mt. Eddy. 2438 Comment
  HSC26577  Holodiscus microphyllus var. glabrescens J. P. Smith 1972-8-18 5750 Siskiyou Medicine Lake Glass Flow 2012 Comment
  JEPS95114  Holodiscus microphyllus var. glabrescens Vernon Oswald and Lowell Ahart 1997-7-28 8773 Siskiyou 16 mi s of Medicine Lake (Forest Route 49 (Powder Hill Road) at 41N03 to Porcupine Butte); Forest Route 49 1365 Comment
  RSA11809  Holodiscus microphyllus var. glabrescens Elmer I. Applegate 1923-8-18 3852 Siskiyou Hoffman Mtn, Medicine Lake Comment
  JEPS93856  Holosteum umbellatum subsp. umbellatum Vernon H. Oswald and Lowell Ahart 1998-6-11 9201 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on the s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  HSC81976  Hordeum brachyantherum Thomas W. Nelson, Jane P. Nelson 1979-6-16 4863 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  CAS-BOT-BC289278  Hordeum brachyantherum subsp. brachyantherum David D. Keck 1949-7-19 6351 Siskiyou 2 mi. S. of Grenada 777 Comment
  UCD85810  Hordeum marinum subsp. gussoneanum Geo. D. Butler 1909-5-21 822 Siskiyou Along road near Yreka. Comment
  CHSC91254  Hordeum murinum subsp. leporinum Lowell Ahart; John Dittes 2005-6-10 12067 Siskiyou South of a poor dirt road, about 90 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
  CAS-BOT-BC143946  Horkelia daucifolia J. P. Smith; T. W. Nelson 1979-6-15 10125 Siskiyou Klamath National Forest, road to Carmen Lake, 0.6 miles from its junction with State Route 3 1645 Comment
  CAS-BOT-BC143968  Horkelia daucifolia John Thomas Howell 1980-4-30 53448 Siskiyou Yreka 792 Comment
  UC329976  Horkelia daucifolia J. G. Lemmon 1889-6-26 Siskiyou Edgewood Comment
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Jun 26 2012
  JEPS74530  Horkelia fusca subsp. parviflora W. J. Ferlatte 1966-6-22 69 Siskiyou near public camp; Big Flat 1524 Comment
  UC618833  Horkelia fusca subsp. parviflora W. Bridge Cooke 1938-7-15 11229 Siskiyou above Bear Springs; Mount Shasta 1676 Comment
  RSA317342  Horkelia fusca subsp. pseudocapitata James R. Shevock 1972-7-25 2223 Siskiyou Hwy 79 near Mt. Shasta, NE of Weed. 1524 Comment
  RSA174976  Horkelia fusca var. brownii E. K. Balls, Lee W. Lenz 1956-6-18 21804 Siskiyou 1.4 miles W of Bartle (jct with road to Lava Beds), Hwy 89, McCloud to Burney. 1220 Comment
  RSA3819  Horkelia fusca var. brownii A. A. Heller 1927-8-1 14435 Siskiyou S side of Mt. Shasta, near Shasta City (Sisson). Comment
  SBBG115868  Horkelia fusca var. parviflora R. E. Preston 2001-7-21 1701 Siskiyou near S end of Antelope Crk Meadow 1633 Comment
  UC860237  Horkelia tridentata subsp. tridentata A. A. Heller 1916-8-24 12565 Siskiyou near Sisson 1077 Comment
  HSC45034  Horkelia tridentata var. flavescens J. O. Sawyer, E. Cope 1977-6-18 2926 Siskiyou Along Cedar Creek Trail between Ten Mile Creek and Bear Pen Creek. 610 Comment
  HSC61502  Hosackia crassifolia Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail 1220 Comment
  HSC73233  Hosackia crassifolia Gail Newton 1980-6-20 507 Siskiyou Near Bald Mtn. 1097 Comment
  HSC25489  Hydrophyllum occidentale J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5717 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC99203  Hydrophyllum occidentale Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  UC1426022  Hydrophyllum occidentale Frederick W. Oettinger 1969-7-9 945 Siskiyou slope due nw Upper English Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1798 Comment
  UC24095  Hydrophyllum occidentale unknown Jun 1896 Siskiyou Squaw [illegible]; Mt. Diablo Base 121 W 1066 Comment
  JEPS35539  Hymenoxys hoopesii Geo. D. Butler 1908-8-2 318 Siskiyou Log Lake Shackelford Creek, Log Lake 1524 Comment
  RSA12609  Hymenoxys lemmonii C. B. Wolf 1934-7-5 5976 Siskiyou Shasta Valley, 4.6 miles north of Gazelle. 823 Comment
  HSC77091  Hypericum anagalloides K. T. Stillman 1976-7-30 334 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  JEPS109404  Hypericum formosum var. scouleri Dean W. Taylor 2004-7-19 19187 Siskiyou Weed, wet meadow just east of town limits along Boles Creek 1051 Comment
  JEPS66830  Hypericum formosum var. scouleri Geo. D. Butler 1908-7-21 5 Siskiyou Oro Fino 762 Comment
  JEPS66841  Hypericum perforatum W. L. Jepson 1940-7-3 20091 Siskiyou 6 mi. e. McCloud (half-way to McCloud by roadside, Fowlers Camp); McCloud R., Fowlers Camp 944 Comment
  UC856770  Idahoa scapigera Louis C. Wheeler 1935-3-16 3373 Siskiyou Klamathon, Klamath River Klamath River; Klamathon, Klamath River 701 Comment
  JEPS60236  Iliamna bakeri L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2290 Siskiyou along US 97 0.7 mi s Bolam road junction (nw side of mountain); Mount Shasta Comment
  SD46431  Ipomopsis aggregata E. K. Balls, L. W. Lenz 1956-6-18 21803 Siskiyou 4.4 miles east of McCloud, State Highway 89. 1036 Comment
  UC455676  Ipomopsis aggregata I. J. Condit 1911-7-15 Siskiyou McCloud; Toll Rd to Shasta Springs Comment
  UCR47889  Ipomopsis aggregata 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
  CHSC65501  Ipomopsis aggregata subsp. formosissima Maria Ulloa-Cruz 1994-8-3 68 Siskiyou Shasta-Trinity National Forests. Mount Shasta Ranger District. West arm of Panther Creek. On slope next to road. 1800 Comment
  CHSC71588  Ipomopsis aggregata subsp. formosissima Vernon H. Oswald; Lowell Ahart 1998-8-3 9455 Siskiyou East end of Rock Fence Lake Rd. (USFS 41N18) in the Scott Mtns. east of Kangaroo Lake. Near Rock Fence Creek. 1920 Comment
  RSA211092  Ipomopsis aggregata subsp. formosissima William J. Ferlatte 1966-6-22 86 Siskiyou Along the South Fork of the Salmon River between the campgrond and Carter's; Trinity Alps. 1524 Comment
  SD88327  Iris missouriensis Darley F. Howe 1972-7-8 Siskiyou Grass Lake, 21 miles north of Weed on #97. 1524 Comment
  CDA2714  Iris pseudacorus T. C. Fuller 1958-6-19 1797 Siskiyou South of road between Yreka & Montague. 0 Comment
  SBBG15965  Iris purdyi D. Myrick 1961-6-21 307 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  SEINET3875954  Iris tenax subsp. klamathensis Marc A. Baker 1980-6-20 2182 Siskiyou Orleans Quad. Near Bald Mountain.; 0 1036 Comment
  HSC42959  Iris tenuissima J. O. Sawyer, K. T. Stillman 1976-5-30 2756 Siskiyou Along Specimen Creek. 915 Comment
  RSA135924  Iris tenuissima Lee W. Lenz 1953-5-13 18298 Siskiyou 7 miles from Happy Camp on road to Yreka 366 Comment
  CHSC32704  Isatis tinctoria James P. Smith 1973-5-5 6526 Siskiyou Scott Bar along the Scott River. Comment
  UC1586879  Isatis tinctoria Juha Pykala and D. H. Norris 1987-4-26 2052 Siskiyou 0-3 km below Bear Lake (above Bear Creek, Marble Mountain Wilderness Area); Marble Mountain Wilderness Area Comment
  UC9320  Isopyrum stipitatum Thos. Howell April, 1892 18 Siskiyou Colestein; Siskiyou Mts., Colestein Comment
  UC134911  Iva axillaris subsp. robustior E. B. Copeland 1903-7-2 3539 Siskiyou Klamathon Comment
  CAS-BOT-BC135373  Ivesia gordonii A. A. Heller 1920-7-9 13424 Siskiyou Summit of Mt. Eddy Comment
  CAS-BOT-BC110020  Juncus Melissa A. Berry 1957-7-1 s.n. Siskiyou Highway 97 near Hebron Summit. 1524 Comment
  CHSC97977  Juncus balticus Jennifer Whipple 1976-7-2 1250 Siskiyou Klamath Mountains, Mount Eddy. Near Dobkins Lake. Along shore of lake. 2133 Comment
  JEPS121621  Juncus balticus Jennifer Buck, Deborah Stout 2011-8-24 Siskiyou Middle Fork Sacramento River headwaters, east slope of the Eddys, near Toad Lake. Gently sloping open meadow within lodgepole pine forest on ultramafic soil. W aspect. Mount Eddy quadrangle. TL01A Comment
  HSC78394  Juncus balticus subsp. ater L. P. Janeway 1983-9-11 675 Siskiyou Poker Flat 1524 Comment
  HSC46746  Juncus balticus subsp. ater William J. Ferlatte 1974-7-26 1597 Siskiyou Big Flat near S Fork of Salmon River, 100 m W of campground 1524 Comment
  RSA577914  Juncus balticus subsp. ater L. C. Wheeler 1935-6-23 3593 Siskiyou Shasta River, 2 miles NW Montague. 884 Comment
  HSC73220  Juncus ensifolius Gail Newton 1980-6-20 504 Siskiyou Near Bald Mtn. 1097 Comment
  JEPS81650  Juncus hemiendytus var. hemiendytus L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2308 Siskiyou ca. 3 mi. n.e. Little Deer Mt.-The Whaleback Quad. (along rd. to Hoffman Mill, 1.2 mi from U.S. Hwy 97) 1554 Comment
  CHSC70198  Juncus nevadensis Jennifer Whipple 1978-10-6 2431 Siskiyou Mount Eddy, Klamath Mountains. Dale Creek drainage on the north face of Mount Eddy. 2255 Comment
  UC1258472  Juncus nevadensis Maralyn A. Renner 1980-8-19 2492 Siskiyou s side Caribou lake; Klamath National Forest, Coffee Creek Quad. Comment
  RSA238908  Juncus nevadensis Frederick W. Oettinger 1969-7-31 1115 Siskiyou At sundew bog on SE-facing gradual slope due west of the English Lake main campsite. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC71132  Juncus nevadensis var. nevadensis Thomas W. Nelson, Jane Nelson, J. P. Smith 1978-7-24 4496 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  POM110776  Juncus occidentalis Geo D. Butler 1910-7-9 1697 Siskiyou Shackleford Creek. 1220 Comment
  HSC100785  Juncus parryi L. P. Janeway, B. Castro 2007-7-29 9144 Siskiyou Medicine Lake Highlands; Pumice Stone Mountain, near top of NW shoulder. 626 Comment
  HSC22234  Juncus parryi J. O. Sawyer 1968-9-9 663 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  POM211411  Juncus parryi L. C. Wheeler 1934-8-17 3186 Siskiyou East end White Mt. Siskiyou Mountains. 1829 Comment
  CHSC88381  Juncus trilocularis Jenny Marr 1993-7-1 186 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  NY21382  Juniperus communis E. B. Copeland 1903-10-6 3782 Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  HSC31503  Juniperus communis var. saxatilis Steve Selva, Roger Jensen 1974-8-25 51 Siskiyou Top of ridge S of Little Duck Lake Comment
  HSC1278  Juniperus occidentalis R. C. Wunner 1965-6-18 205 Siskiyou Indian Well Campground, Lava Beds National Monument 1433 Comment
  UC726032  Juniperus occidentalis A. A. Heller 1938-7-12 15262 Siskiyou about 2 mi n Bray Comment
  OBI36637  Juniperus occidentalis subsp. occidentalis David J. Keil 1983-7-3 17378 Siskiyou 11 mi NE of jctn with SR 3 along Gazelle-Callahan rd Comment
  POM21780  Juniperus occidentalis var. occidentalis Alice Eastwood 1922-10-23 11554 Siskiyou Yreka. Comment
  RSA592549  Juniperus occidentalis var. occidentalis S. O. Mattoon 1976-6-19 36 Siskiyou Gazelle Callahan Road; 6.7 miles W of Callahan 1128 Comment
  SEINET11056490  Juniperus occidentalis var. occidentalis D. Charlet, T. Charlet 1996-11-25 2345 Siskiyou Scott Bar Mountains, Scott River, between Spring Flat and Kelsey Station. 677 Comment
  JEPS25576  Kalmia polifolia subsp. microphylla Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7202 Siskiyou Mount Shasta, Panther Meadow Panther Meadow; Mount Shasta, Panther Meadow 2286 Comment
  CDA33311  Kalmia polifolia subsp. polifolia Gordon Leppig, T. LaBanca and L. Arguello 1997-6-27 497 Siskiyou Northern California Peatlands; Klamath National Forest; Russian Wilderness, Little Duck Lake Fen; cirque west of Little Duck Lake. Comment
  RSA21197  Keckiella corymbosa Carl B. Wolf 1937-8-9 9085 Siskiyou Klamath River, 2 mi. above Doolittle Creek. Comment
  RSA305804  Keckiella corymbosa James R. Shevock 1972-7-26 2226 Siskiyou Along the Klamath River. 518 Comment
  CAS-BOT-BC246180  Keckiella lemmonii Wm. Bridge Cooke 1940-8-8 15424 Siskiyou Lower canyon of Squaw Valley Creek above the big spring, Mount Shasta 1524 Comment
  JEPS82321  Kelloggia galioides Roger Raiche 1982-7-8 20589 A Siskiyou above Lily Pad Lake (Cook and Green Pass); above Lily Pad Lake, Cook and Green Pass 1828 Comment
  JEPS82322  Kelloggia galioides Roger Raiche 1982-7-8 20589 A Siskiyou above Lily Pad Lake; Cook and Green Pass 1828 Comment
  UC1023834  Kelloggia galioides Douglas Barbe 1955-7-26 273 Siskiyou n slope Scott Mtn.; Klamath Mountains 1828 Comment
  UCD121979  Kelloggia galioides Alfred H. Murphy 1961-7-19 61 -I Siskiyou Marble Mountains, Klamath National Forest. North end Sky High Valley. 1584 Comment
  SACT001423  Koeleria cristata Geo Butler 1910-7-3 Siskiyou Dry land. Comment
  UC1132158  Koeleria macrantha H. S. Yates 1936-6-21 5818 Siskiyou 1 mi se Gazelle; Etna Quad. Comment
  RSA0107897  Kopsiopsis strobilacea Thomas H. Harris 1947-4-30 s.n. Siskiyou Near West Fork Campground, north of Happy Camp on Indian Creek Road. 1219 Comment
  CAS-BOT-BC340372  Kyhosia bolanderi Alice Eastwood 1912-8-30 1988 Siskiyou Mount Eddy Comment
  JEPS40203  Kyhosia bolanderi Geo. D. Butler 1908-8-4 299 Siskiyou head Shackelford Creek 1676 Comment
  CAS-BOT-BC340379  Kyhosia bolanderi Dr. E. B. Copeland August 15, 19 3 3882 Siskiyou Sisson 1066 Comment
  JEPS109402  Lactuca serriola Dean W. Taylor 2004-7-19 19182 Siskiyou Weed, wet meadow just east of town limits along Boles Creek 1051 Comment
  CDA8088  Lagophylla ramosissima T. C. Fuller 1965-6-1 13589 Siskiyou West side of Highway 99 to Grenada, 4 miles south of Yreka. 0 Comment
  JEPS39005  Lagophylla ramosissima Geo. D. Butler 1908-7-22 296 Siskiyou near Yreka; Butler's Ranch Comment
  UCR52609  Lathyrus 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
  CAS-BOT-BC204982  Lathyrus jepsonii var. californicus Alice Eastwood 1923-5-23 11937 Siskiyou Cantara, S.P.R.R. Comment
  CAS-BOT-BC204989  Lathyrus jepsonii var. californicus A. A. Heller 1928-6-9 14500 Siskiyou Along the Sacramento River near Shasta Retreat Comment
  UC164285  Lathyrus nevadensis var. nevadensis Geo. D. Butler 1910-6-19 1588 Siskiyou Goosenest foothills Goosenest 1524 Comment
  RSA3772  Lathyrus pauciflorus subsp. brownii A. A. Heller 1927-5-14 14378 Siskiyou About the base of black Butte near the western base of Mount Shasta. 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
  SDSU1152  Leersia oryzoides D. F. Howe 1962-8-5 3397 Siskiyou Bank of Klamouth River, 58.8 miles east of Happy Camp on #96. 610 Comment
  HSC193  Lepidium campestre William J. Ferlatte 1966-8-3 255 Siskiyou Mtn. Meadow Ranch 1524 Comment
  RSA240050  Lepidium campestre Frederick W. Oettinger, R. F. Thorne 1969-8-5 1214 Siskiyou Young s Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1463 Comment
  CDA3796  Lepidium latifolium J. R. Grisham 1967-9-25 Siskiyou Indian Tom Lake, Dorris. 0 Comment
  CAS-BOT-BC89829  Lepidium montanum A. A. Heller 1925-7-25 s.n. Siskiyou In the Shasta Valley north of Gazelle. Comment
  SDSU3139  Leptodactylon pungens D. F. Howe 1977-7-5 5002 Siskiyou 15 miles SE of Granada. 1219 Comment
  HSC30635  Leptosiphon ciliatus Frederick W. Oettinger 1969-8-1 1129 Siskiyou Marble Mtn. Wilderness Area, edge of Wiregrass Meadow below English Lake 1677 Comment
  JEPS6664  Lesquerella occidentalis subsp. occidentalis Geo. D. Butler 1910-5-15 1342 Siskiyou Greenhorn Mountain 914 Comment
  JEPS20613  Lessingia nemaclada W. L. Jepson 1907-7-25 2960 Siskiyou Scott Valley Comment
  RSA507783  Lessingia nemaclada J. C. Semple, S. Heard 1986-8-16 8467 Siskiyou CA-96, 1.6 km west of Horse Creek, before CA-3 Comment
  CAS-BOT-BC508378  Leucocrinum montanum D. E. Stitt 1916-4-10 s.n. Siskiyou Little Shasta Valley 30 miles east of Yreka Comment
  JEPS80659  Leucocrinum montanum W. B. and V. G. Cooke Jun 1979 3750 Siskiyou Timber Hills Mt. Shasta (garden of Mrs. R. Bangsberg) Comment
  HSC755  Leucothoe davisiae William J. Ferlatte 1967-7-26 739 Siskiyou Caribou Basin 1982 Comment
  HSC4438  Lewisia cotyledon William J. Ferlatte 1967-7-26 744 Siskiyou Caribou Basin 1982 Comment
  HSC74912  Lewisia cotyledon J. P. Smith 1978-5-28 9955 Siskiyou Klamath National Forest, FS Rd. 39N27, 3.1 mi. S of Sawyers Bar 1220 Comment
  UCD101582  Lewisia cotyledon Rolf Y. Berg 1964-7-15 8271 Siskiyou Seiad Valley Pass near Lily Pad Lake (W. of Cook and Green Pass.) Siskiyou Mountains. Comment
  CAS-BOT-BC444044  Lewisia cotyledon var. cotyledon Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Cuddyhi Lake [Cuddihy Lakes] Comment
  UC163730  Lewisia cotyledon var. cotyledon Geo. D. Butler 1908-8-7 1 Siskiyou divide between <Woo?>lly and Independence Creek Comment
  CAS-BOT-BC444063  Lewisia cotyledon var. howellii L. R. Short 1933-5-24 119 Siskiyou Klamath National Forest. Rocky cliff on Klamath 548 Comment
  JEPS25554  Lewisia cotyledon var. howellii Maxine Gibeson 1961-5-13 Siskiyou on large cliff...across Klamath River from Calif. Highway no. 96 (1 mi e of Walker Bridge, almost directly across from Oak Knoll Ranger Sta., 9 1/2 mi w of commun. of Klamath River) 524 Comment
  RSA237331  Lewisia leeana Frederick W. Oettinger 1967-7-8 166 Siskiyou Near Big Blue Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  SBBG122960  Lewisia leeana B. Ertter 1990-7-16 9372 Siskiyou N side of ridge W of Parks Crk trailhead (Pacific Crest Trail crossing of Rd 17); ca. 8 air-mi SW of Weed 2194 Comment
  UC796570  Lewisia rediviva Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11715 Siskiyou Schoolhouse Hill Plowman's Valley (Noyes Valley), e. fork of Scott River Comment
  CAS-BOT-BC444468  Lewisia rediviva var. rediviva L. E. Smith 1915-5-1 s.n. Siskiyou Yreka Comment
  CAS-BOT-BC444578  Lewisia triphylla Ira L. Wiggins 1955-7-27 13539 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA237364  Lewisia triphylla Frederick W. Oettinger 1967-7-8 153 Siskiyou North-facing cliff between Big Blue Lake and Hogan Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC283817  Leymus cinereus David D. Keck 1949-7-19 6352 Siskiyou 2 miles S of Grenada 777 Comment
  RSA715805  Leymus cinereus L. Ahart, John Dittes 2005-6-10 12109 Siskiyou 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. 777 Comment
  CAS-BOT-BC283815  Leymus cinereus A. A. Heller 1905-6-19 s.n. Siskiyou Grenada Station Comment
  JEPS68581  Leymus triticoides Geo. D. Butler 1909-6-19 837 Siskiyou along creek near Yreka Comment
  UCD65602  Leymus triticoides Mr. Roseman 1913-1 4 Siskiyou Butte Valley. Comment
  HSC76748  Ligusticum californicum K. T. Stillman 1976-7-15 254 Siskiyou Marble Mtn. Wilderness Area 1951 Comment
  HSC22269  Ligusticum grayi J. O. Sawyer 1969-8-4 1859 Siskiyou Slope SW of Sugar Lake 2195 Comment
  HSC570  Lilium kelleyanum William J. Ferlatte 1967-7-25 721 Siskiyou Caribou Basin 1982 Comment
  HSC44604  Lilium pardalinum subsp. vollmeri Laura Witherspoon 1977-7-12 Siskiyou Flint Valley 1341 Comment
  CHSC2296  Lilium rubescens V. Holt 1932-7-3 Siskiyou Castle Creek. 914 Comment
  RSA237914  Lilium washingtonianum subsp. purpurascens Frederick W. Oettinger 1968-8-16 567 Siskiyou East side of Hancock Lake. Salmon Mtns. High Lake Basin in the vicinity of English Peak, Marble Mountain Wilderness Area. 1936 Comment
  UC1286472  Linanthus ciliatus W. B. and V. G. Cooke 1965-7-12 35179 Siskiyou Bolam Road Mt. Shasta Comment
  UC1409304  Linanthus harknessii Frederick W. Oettinger and R. F. Thorne 1969-8-8 1294 Siskiyou near English Lake (Sundew bog, vicinity of English Lake, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  CDA40099  Linanthus harknessii T. C. Fuller 1960-6-3 4614 Siskiyou East bank of Toad Lake, ca. 7 miles north of Bartle. 0 Comment
  CHSC71491  Linanthus pungens Vernon H. Oswald; Lowell Ahart 1998-7-21 9318 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
  RSA166006  Linaria dalmatica Donald Myrick 1961-6-20 285 Siskiyou On Old McCloud Road to Bear Springs about 1 mile east of Mt. Shasta City. 1159 Comment
  CAS-BOT-BC416404  Linnaea borealis subsp. longiflora A. A. Heller 1919-6-20 13259 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  RSA0087561  Linnaea borealis subsp. longiflora E. B. Copeland 1903-8-13 s.n. Siskiyou Sisson. In several localities near Sisson, and below 5000 feet on Mt. Eddy. Comment
  UC1045254  Linnaea borealis var. longiflora W. Bridge Cooke 1940-8-8 15421 Siskiyou along Squaw Valley Creek below McCloud intake; Mount Shasta, along Squaw Valley Creek below McCloud intake Comment
  UC61186  Listera convallarioides W. A. Setchell, C. C. Dobie 1902-7-22 Siskiyou Sisson Mount Shasta Comment
  HSC61604  Listera convallarioides Ruby Van Deventer 12 Jul [year missing] Siskiyou Lookout Mountain Comment
  UC62214  Lithocarpus densiflorus W. J. V. Osterhout 1903-1 Siskiyou Shasta Springs Comment
  CAS-BOT-BC36530  Lithocarpus densiflorus var. echinoides A. A. Heller 1915-8-26 12248 Siskiyou Wagon creek at the foot of Mt. eddy 1127 Comment
  UC527340  Lithocarpus densiflorus var. echinoides C. B. Wolf 1931-9-2 Siskiyou 4 mi above junction of McCloud Road with the Pacific Highway 1188 Comment
  UC585059  Lithophragma campanulatum E. B. Babcock and G. L. Stebbins Jr. 1936-6-13 1990 Siskiyou about 1 1/2 mi w Mt. Shasta City (e and ne slope of spur of Rainbow Ridge above Sulloway Creek); above Sulloway Creek 1188 Comment
  HSC91189  Lithophragma glabrum Jennifer Whipple 1978-6-5 2349 Siskiyou Pass between Eddy Creek and Deadfall Creek drainages 2073 Comment
  RSA184753  Lithophragma glabrum Gilbert Muth 1966-7-8 366 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  HSC64822  Lithophragma heterophyllum J. P. Smith 1973-5-5 6417 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC39743  Lithophragma parviflorum J. O. Sawyer 1970-4-4 2092 Siskiyou Along Sugar Creek 823 Comment
  SEINET6032583  Lithophragma parviflorum G. D. Butler 1910-5-8 1307 Siskiyou Near Yreka Comment
  UC196955  Lolium multiflorum Geo. D. Butler 1909-6-7 828 Siskiyou along creek near Yreka Comment
  SEINET3143862  Lomatium californicum G. D. Butler 1910-5-18 1359 Siskiyou near Yreka Comment
  UC640624  Lomatium engelmannii John Thomas Howell 1937-7-29 13656 Siskiyou between Trinity & Siskiyou co.'s Scott Mt. Comment
  HSC22243  Lomatium macrocarpum J. O. Sawyer 1969-7-9 1250 Siskiyou W facing slope above Bingham Lake 2317 Comment
  HSC55714  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-26 10130 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  RSA715497  Lomatium macrocarpum L. Ahart 2005-6-9 12032 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  UCR37581  Lomatium macrocarpum L. P. Janeway 1983-7-3 372 Siskiyou Ridgetop NW of Poker Flat. (Siskiyou crest) 1585 Comment
  HSC37532  Lomatium nudicaule J. P. Smith 1974-5-26 7568 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC1037477  Lomatium nudicaule Douglas Barbe 1955-7-5 113 Siskiyou 1/2 mi n Etna (on the middle valley road, Klamath Mountains); Klamath Mountains 883 Comment
  CAS-BOT-BC217791  Lomatium peckianum Lincoln Constance; Reed C. Rollins 1942-5-14 2918 Siskiyou One mile east of Yreka, Klamath-Siskiyou Region 762 Comment
  SEINET11131417  Lomatium triternatum var. triternatum G. D. Butler 1910-5-21 1380 Siskiyou Klamath Hills Comment
  UC164423  Lonicera ciliosa Geo. D. Butler 1908-6-29 998 Siskiyou Cherry Creek Comment
  UC1608337  Lonicera conjugialis J. Kierstead 1991-5-8 90 -58 Siskiyou Lakin Dam on the McCloud River Shasta-Trinity National Forests, McCloud Ranger Dist. 1097 Comment
  UC630399  Lonicera conjugialis Annetta Carter 1939-8-21 1478 Siskiyou 12 mi sw of Etna (above se end of Taylor Lake); Salmon Mountains 2072 Comment
  UCD137307  Lonicera conjugialis J. M. Tucker 1963-7-5 3703 Siskiyou Blake's Fork of South Russian Creek (a tributary of the Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1615 Comment
  UC33400  Lotus crassifolius var. crassifolius W. C. Blasdale Aug 1894 Siskiyou Sisson Comment
  UC637052  Lotus crassifolius var. crassifolius Edward Lee 1934-8-13 1059 Siskiyou Happy Camp-Waldo (Oregon) Road, watershed of West Branch of Indian Creek Klamath National Forest 1219 Comment
  RSA715637  Lotus denticulatus L. Ahart 2005-6-9 12008 Siskiyou 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 2.5 miles (air) ESE of Grenada. 775 Comment
  POM27604  Lotus douglasii Geo. D. Butler 1909-5-23 777 Siskiyou Near Yreka Comment
  UC161561  Lotus nevadensis var. nevadensis Geo. D. Butler 1908-6-28 392 Siskiyou near Yreka Comment
  HSC71446  Lotus unifoliolatus var. unifoliolatus J. P. Smith, Steve Selva 1970-7-15 4351 Siskiyou Klamath National Forest, road to Happy Camp. 732 Comment
  CAS-BOT-BC140213  Luetkea pectinata G. J. Muth 1969-8-10 1330 Siskiyou Ridge w. of Boulder Peak 2346 Comment
  CAS-BOT-BC140246  Luetkea pectinata K. T. Stillman 1976-7-30 310 Siskiyou Trail from Big Rock Camp to Jump off, Marble Mountain Wilderness Area 1981 Comment
  HSC29401  Luetkea pectinata Frederick W. Oettinger 1968-8-2 356 Siskiyou Marble Mtn. Wilderness Area, SE corner of Diamond Lake 2073 Comment
  RSA237597  Luetkea pectinata Frederick W. Oettinger 1968-8-2 356 Siskiyou South end of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  UCR110581  Luetkea pectinata L. C. Wheeler 1963-8-25 8274 Siskiyou Preston Peak: Summit ridge 2134 Comment
  SD106944  Lupinus albicaulis subsp. shastensis D. B. Dunn 1971-8-15 18141 Siskiyou 0.5 mile east of McCloud Ranger Station on Highway 89. Comment
  UC69662  Lupinus albicaulis var. shastensis A. A. Heller 1905-6-13 8024 Siskiyou near Shasta Springs; ; near Shasta Springs, Siskiyou Co. Comment
  UC965448  Lupinus albicaulis var. shastensis A. A. Heller 1915-7-18 12117 Siskiyou Metcalf's ranch Mt. Eddy (ne base of mt.) 1188 Comment
  UC15787  Lupinus albifrons T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  CAS-BOT-BC195955  Lupinus albifrons var. albifrons C. F. Rose 1931-5-18 s.n. Siskiyou Near Redding Comment
  CAS-BOT-BC195957  Lupinus albifrons var. albifrons Mrs. H. C. Cantelow 1936-5-20 s.n. Siskiyou Near Fort Jones Comment
  CAS-BOT-BC195960  Lupinus albifrons var. albifrons Mrs. H. C. Cantelow 1936-5-20 sn. Siskiyou Near Fort Jones Comment
  POM26759  Lupinus albifrons var. eminens Geo. D. Butler 1910-5-16 1353 Siskiyou Yreka Comment
  HSC2252  Lupinus andersonii Geo. D. Butler 1910-5-15 1349 Siskiyou Greenhorn Mtn. Comment
  SEINET10490581  Lupinus breweri var. breweri Ruth P. Ownbey 1938-7-20 Ownbey 1763 Siskiyou Open gravelly slopes near dry lake lookout, summit of the siskiyou mts., Siskiyou co., Calif. Comment
  CAS-BOT-BC215195  Lupinus croceus A. A. Heller 1915-7-16 12097 Siskiyou N side of Mount Eddy 1524 Comment
  CAS-BOT-BC215197  Lupinus croceus Christopher Davidson 1975-6-5 2681 Siskiyou 0.8 mile N of Scott Mountain Summit on Highway 3 1584 Comment
  CHSC914  Lupinus croceus M. Yoder 1941-7-12 Siskiyou Castle Lake. 1950 Comment
  NY15836  Lupinus croceus H. E. Brown 1897-6-11 392 Siskiyou North side of Mt. Shasta 1524.0 Comment
  UC1094387  Lupinus croceus Rimo C. Bacigalupi with Galen Smith 1957-6-26 5963 Siskiyou South Fork of the Sacramento River w of the town Mount Shasta (along road to Gumboot Lake); South fork Sacramento River, rd to Gumboot Lake 1767 Comment
  UC1185309  Lupinus croceus H. E. Brown June 1-10, 1897 392 Siskiyou near Sisson; near Sisson 1083 Comment
  RSA372142  Lupinus croceus P. Kenney, Conrad, Dunn, O. Kenney 1973-6-4 384 Siskiyou Along road from Cecilville to Callahan; 6.4 mi W of Callahan. 1738 Comment
  JEPS93902  Lupinus croceus var. croceus Vernon H. Oswald and Lowell Ahart 1998-8-3 9434 Siskiyou w of Kangaroo Lake (near the Pacific Trail in the Scott Mountains); Scott Mountains 1981 Comment
  UC146920  Lupinus klamathensis Harley P. Chandler June, 1901 1720 Siskiyou ridges and meadows near Marble Mountain (Shackleford Canyon); North Coast Ranges, near Marble Mountain 1828 Comment
  CAS-BOT-BC26622  Lupinus klamathensis Alice Eastwood; John Thomas Howell 1934-4-20 1775 Siskiyou Junction of Klamath and Shasta Rivers Comment
  POM26764  Lupinus klamathensis Geo. D. Butler 1910-5-15 1349 Siskiyou Greenhorn Mountain 1067 Comment
  UCSB16735  Lupinus latifolius 1962-6-11 Siskiyou Roadbank along Scott River, 2 miles north of Scott Bar 487 Comment
  JEPS83253  Lupinus lepidus var. sellulus Geo. D. Butler 1908-8-2 368 Siskiyou Shackelford Creek; Quartz Valley, Shackelford Creek Comment
  JEPS105207  Lupinus microcarpus var. microcarpus Dean W. Taylor 1995-6-4 14962 Siskiyou 2 miles southeast of Montague; Shasta Valley Wildlife Management Area; Little Shasta River 853 Comment
  UC138026  Lupinus microcarpus var. microcarpus Dr. E. B. Copeland 1903-7-2 3537 Siskiyou Klamathon Comment
  HSC40979  Lupinus polyphyllus J. O. Sawyer 1971-7-15 2429 Siskiyou Along Red Rock Valley Creek 1585 Comment
  SEINET10488898  Lupinus sellulus Katherine L. Morris 1973-5-25 Morris 279 Siskiyou Collected 1.4 mi ne of wheat on u.s. 97 In an area of yellow pine, purshia, and Manzanita at the side of a cemetery. Comment
  CHSC38983  Luzula comosa var. laxa J. D. Jokerst 1983-7-5 1824 Siskiyou Atkin's Meadow, 15 air miles E of McCloud. Comment
  RSA105371  Luzula divaricata G. D. Barbe 1955-8-5 361 Siskiyou Growing along the trail from Big Flat to Caribou Lake at a point northwest of the summit of Caribou Mtn. Salmon Mountains. 2409 Comment
  JEPS67183  Luzula parviflora Geo. D. Butler 1910-7-8 1673 Siskiyou Shackelford Creek , Shackelford Creek (Upper Campbell Lake) 1524 Comment
  JEPS96983  Luzula parviflora Dean W. Taylor 1999-8-12 17304 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley), creek crossing on logging road 1341 Comment
  RSA605516  Lysichiton americanus L. C. Wheeler 1959-7-25 7592 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  POM211821  Machaeranthera canescens var. shastensis L. C. Wheeler 1934-8-24 3218 Siskiyou Trapper Creek. 1860 Comment
  SD8618  Madia bolanderi Brandegee Jun 1887 Siskiyou Mt. Shasta Comment
  CAS-BOT-BC344001  Madia elegans Alice Eastwood 1922-10-18 11532 Siskiyou Shasta Springs Comment
  RSA606132  Madia elegans subsp. elegans L. C. Wheeler 1935-6-13 3584 Siskiyou North side Scott River, Scott Bar Mountains 793 Comment
  POM30799  Madia exigua Geo D. Butler 1910-6-6 1536 Siskiyou Quartz Valley Comment
  CAS-BOT-BC344542  Madia exigua L. E. Smith 1913-6-12 353 Siskiyou Sulloway Creek Comment
  CAS-BOT-BC334666  Madia glomerata Louis C. Wheeler 1934-8-24 3216 Siskiyou Trapper Creek, Siskiyou Mountains 1859 Comment
  HSC43829  Madia gracilis Maralyn O'Meara 1974-5-27 480 Siskiyou Along FS Rd. 47N03 1280 Comment
  CAS-BOT-BC343426  Madia gracilis Wm. F. Herrin 1919-6-16 s.n. Siskiyou Shasta Springs Comment
  HSC29116  Madia gracilis Frederick W. Oettinger 1969-8-18 1433 Siskiyou Marble Mountain Wilderness Area, English Peak vicinity, Horse Range Lake 1860 Comment
  RSA237498  Madia gracilis subsp. gracilis Frederick W. Oettinger 1968-9-9 805 Siskiyou Salmon Mountains; the high lake basins in the vicinity of English Peak, Marble Mountains Wilderness Area: between Lower Pond and Tobacco Lake, over a ridge 1921 Comment
  RSA237332  Madia minima Frederick W. Oettinger 1967-6-24 116 Siskiyou Ridge near Etna Summit on road between Etna and Sawyer's Bar. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  SJSU6506  Maianthemum racemosum R. W. Trivelpiece 1972-6-15 121 Siskiyou Vann Creek near Bear Peak c. 15 mi SW of Happy Camp 1280 Comment
  CAS-BOT-BC514186  Maianthemum stellatum Wm. Bridge Cooke 1938-7-1 11148 Siskiyou Mount Shasta, Below Wagon Camp 1706 Comment
  RSA184805  Maianthemum stellatum Gilbert Muth 1966-7-8 365 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  SEINET12044215  Maianthemum stellatum E. L. Greene 1876-1 s.n. Siskiyou Yreka Comment
  JEPS107440  Medicago lupulina Lowell Ahart, John Dittes 2005-6-10 12063 Siskiyou Along a poor dirt road, about 80 yards north 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
  UC865633  Medicago lupulina A. A. Heller 1916-6-20 12416 Siskiyou Metcalf's ranch Mt. Eddy (ne base of mt.) 1188 Comment
  CAS-BOT-BC271212  Melica bulbosa R. E. Frenkel 1963-7-15 244 Siskiyou West of Everitt Memorial Highway, 1.7 miles north of McCloud River RR crossing, near Mount Shasta 1290 Comment
  RSA602387  Melica spectabilis L. C. Wheeler 1935-7-26 3701 Siskiyou Siskiyou Mountains: Jaynes Canyon. 1951 Comment
  HSC26150  Melica stricta J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5691 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  HSC22110  Melica subulata J. O. Sawyer 1968-7-10 466 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  UCD88594  Melica subulata AHM 1955-7-29 55 R Siskiyou Klamath National Forest. Marble Mountains. Clear Lake. 1798 Comment
  SFV2373  Mentzelia albicaulis A. I. Richardson 1961-6-8 16 Siskiyou Big Springs Road, north of junction with Highway 97. 915 Comment
  JEPS41179  Mentzelia montana W. L. Jepson 1940-6-23 19999 Siskiyou e Mayten (east side of valley); Little Shasta Valley 883 Comment
  RSA201180  Mentzelia montana Dorothy Parker 1967-5-14 s.n. Siskiyou McConahue Gulch, Scott Valley. 1128 Comment
  UC1409261 Image available Micranthes marshallii Frederick W. Oettinger 1969-7-16 1037 Siskiyou south of Abbott's Lake (High Lake Basins in vicinity of English Peak), Marble Mountain Wilderness Area Comment
  CHSC88402  Microseris laciniata subsp. laciniata Jenny Marr 1993-7-1 161 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC349378  Microseris nutans Ira L. Wiggins 1955-7-27 13520 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC58930  Microsteris gracilis Marvin Butler 1971-8-9 82 Siskiyou Near El Capitan, close to the town of Cave Junction 1464 Comment
  POM208263  Microsteris gracilis subsp. humilis L. C. Wheeler 1934-6-7 2650 Siskiyou Siskiyou Mountains: Hungry Creek Lookout. 1502 Comment
  RSA237549  Mimulus alsinoides Frederick W. Oettinger 1969-7-10 959 Siskiyou Cliff above southwest end of Upper English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1921 Comment
  HSC36530  Mimulus breweri J. O. Sawyer 1969-7-10 1281 Siskiyou E facing slope W of S Sugar Lake 2226 Comment
  RSA237540  Mimulus breweri Frederick W. Oettinger 1967-8-20 296 Siskiyou Stream about 100 yards below spring at Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  UC609342  Mimulus guttatus Eleanor Burks Hart 1938-8-25 947 Siskiyou Upper Wright Lake 2225 Comment
  POM43513  Mimulus guttatus Geo. D. Butler 1910-5-29 1423 Siskiyou Near Yreka. Comment
  RSA237239  Mimulus guttatus Frederick W. Oettinger 1967-6-28 128 Siskiyou Mouth of Kelly Gulch, tributary of Salmon River. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  UC1736262  Mimulus jepsonii Dean W. Taylor 1987-6-7 9020 Siskiyou South end Saddle Hills 1645 Comment
  POM146613  Mimulus layneae A. A. Heller 1925-6-25 13895 Siskiyou Along the Pacific Highway 3 miles north of the town of Mt. Shasta. Comment
  HSC72486  Mimulus moschatus J. P. Smith, Steve Selva 1970-6-16 4060 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  HSC73317  Mimulus moschatus Gail Newton 1980-6-20 498 Siskiyou Near Bald Mtn. 1097 Comment
  HSC64881  Mimulus moschatus D. L. Goforth 1979-7-19 270 Siskiyou Trinity Alps Wild Area, Caribou Lakes Basin, .5 mi. S of upper lake 2226 Comment
  JEPS30989  Mimulus nanus var. jepsonii D. E. Breedlove 1962-6-11 3361 Siskiyou 8.0 mi e McCloud (along State HIghway 89); Cascade Range 1127 Comment
  UC718166  Mimulus nanus var. jepsonii Carl B. Wolf 1934-7-6 6005 Siskiyou 5.4 mi from Mt. Shasta City (on Wagon Camp Road, sw slope of mt.); Mt. Shasta 1219 Comment
  HSC36466  Mimulus nanus var. nanus J. O. Sawyer 1969-6-2 1009 Siskiyou Summit above Albert Lake 2256 Comment
  JEPS86953  Mimulus nanus var. nanus David M. Thompson 1989-6-28 1022 Siskiyou 10.0 mi ne Weed (along Hwy 97, nw side of road) 1150 Comment
  RSA535449  Mimulus nanus var. nanus David M. Thompson 1988-6-5 933 Siskiyou 10 mi NE of Weed along Hwy 97, NW side of road. 1150 Comment
  UC1258471  Mimulus nasutus John Palmer 1980-8-13 789 Siskiyou near F.S. Rd. 47N44 (from Beaver Creek Road); Klamath National Forest, Condry Mtn. Quad., Dead Cow Creek 1615 Comment
  UC1584289  Mimulus primuloides J. Kierstead, R. Bittman, and M. Meyers 1989-8-11 89 -73 Siskiyou Gumboot Creek Crossing Shasta-Trinity NF, Mt. Shasta RD (s side of FS Rd 26) 1767 Comment
  UC803949  Mimulus primuloides subsp. linearifolius G. L. Stebbins Jr., P. Dansereau, C. McMillan, and K. Narayan 1949-8-9 4023 Siskiyou 10 mi w Weed (above Stewart Springs); Park's Creek 1219 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
  UC1031296  Mimulus tilingii Francis W. Pennell 1940-7-17 26181 Siskiyou above Ruffy Lake (w of Etna); Salmon Mountains 1981 Comment
  CAS-BOT-BC388882  Minuartia douglasii J. H. Thomas 1954-5-14 4166 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, Southwestern Siskiyou County 1219 Comment
  HSC42964  Minuartia douglasii J. O. Sawyer, K. T. Stillman 1976-5-29 2754 Siskiyou Along Specimen Creek. 884 Comment
  POM208525  Minuartia douglasii L. C. Wheeler 1934-6-4 2640 Siskiyou Ridge E Negro Gulch off Klamath River; Siskiyou Mts. 1067 Comment
  CAS-BOT-BC174738  Minuartia nuttallii Alice Eastwood 1923-5-23 11923 Siskiyou Cantara, S.P.R.R. Comment
  HSC69000  Minuartia nuttallii subsp. gregaria Maralyn A. Renner 1980-7-28 2163 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  POM258762  Minuartia nuttallii subsp. gregaria C. L. Hitchcock, J. S. Martin 1939-7-7 5279 Siskiyou 0.5 mile below Sanger Peak Lookout. 1524 Comment
  RSA78840  Minuartia nuttallii subsp. gregaria P. A. Munz 1952-7-2 17918 Siskiyou Road to Baldy Mountain about 6 miles by air west of Happy Camp, Siskiyou Mountains 1448 Comment
  CHSC99584  Minuartia nuttallii var. gregaria L. P. Janeway 2008-7-22 9446 Siskiyou Klamath Ranges. Between the Trinity Mountains, Castle Crags, and The Eddys; narrow ridge between Hart Lake and Little Castle Lake. Steep northwest-facing rock outcrop and scree slope. 1871 Comment
  CHSC118449  Minuartia nuttallii var. gregaria Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -026 Siskiyou Lower Parks Creek watershed, E Klamath Range; Pinus jeffreyi-Calocedrus decurrens woodland on ultramafic clay soil, slope above Forest Service Road 42N19, 3 miles northwest of Stewart Springs. UTM NAD 83 Zone 10, 539095m E, 4586836m N. 1485 Comment
  UC375336  Minuartia pusilla Geo. D. Butler 1909-4-25 619 Siskiyou Quartz Valley Comment
  HSC92010  Minuartia stolonifera Thomas W. Nelson, Jane P. Nelson 1979-6-16 4869 Siskiyou Along SR 3, 2.2 mi. N of Scott Mtn. Pass 1341 Comment
  NY342052  Mirabilis greenei E. L. Greene 1876-1 s.n. Siskiyou Comment
  POM68866  Mirabilis greenei Geo. D. Butler 1909-5-16 774 Siskiyou Near Yreka 1067 Comment
  UC796514  Mirabilis greenei Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11864 Siskiyou foot of Gazelle Mt grade Willow Creek Comment
  CAS-BOT-BC229613  Mirabilis greenei Dorothy Parker 1950-6-5 449 Siskiyou On the W side of Scott Valley 914 Comment
  CDA23865  Mirabilis greenei D. L. Janssen, F. D. Horn 1978-5-22 Siskiyou Montague-Ager Road, Montague. 0 Comment
  RSA276572  Mirabilis greenei George Pilz 1973-5-25 995 Siskiyou 4 miles N of Yreka, above the Shasta River. 700 Comment
  RSA123579  Mitella breweri G. D. Barbe 1955-7-9 149 Siskiyou S side of Kangaroo Lake, Scott Mtns. 1829 Comment
  HSC96407  Mitella pentandra Gordon Leppig, J. Kalt 1996-7-9 356 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  CAS-BOT-BC433061  Mitella pentandra Wm. Bridge Cooke 1938-9-8 11656 Siskiyou Mount Shasta. Squaw Creek, Heather Meadows. On the banks of the Squaw Creek. Also at Panther Creek. Comment
  HSC78186  Mitella trifida L. P. Janeway 1983-8-6 501 Siskiyou Poker Flat 1524 Comment
  HSC22248  Monardella glauca J. O. Sawyer 1969-7-9 1219 Siskiyou Along trail to Sugar Lake. 1768 Comment
  HSC22250  Monardella glauca J. O. Sawyer 1969-8-4 1833 Siskiyou Above Sugar Lake 2134 Comment
  RSA749250  Monardella glauca K. M. Meyer, A. Townesmith 2007-8-2 186 Siskiyou Klamath National Forest, 10.1 mi. on National Forest Rd. 70, off Hwy 97 toward Oregon. 1933 Comment
  CAS-BOT-BC221812  Monardella odoratissima David D. Keck 1938-8-6 4816 Siskiyou At Del Norte Co. line, Poker Flat, summit of Siskiyou Mts., 4 mi. S. of Oregon line, on road from Waldo to Happy Camp 1555 Comment
  UC164002  Monardella odoratissima subsp. glauca Geo. D. Butler 1910-5-23 1393 Siskiyou Humbug Mountain 1219 Comment
  SEINET844328  Monardella odoratissima subsp. glauca Marion Ownbey, Fred G. Meyer 1940-1 2182 Siskiyou in sandy soil in open meadow well below timber line on east side of Mt. Shasta Comment
  CAS-BOT-BC220362  Monardella odoratissima subsp. pallida J. M. Tucker 1963-8-19 3785 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area 1920 Comment
  CAS-BOT-BC220369  Monardella odoratissima subsp. pallida A. A. Heller 1905-6-13 8018 Siskiyou Shasta Springs Comment
  CAS-BOT-BC222176  Monardella odoratissima subsp. pallida J. M. Tucker 1963-8-19 3785 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area 1920 Comment
  CHSC67840  Monardella odoratissima subsp. pallida James D. Jokerst 1992-7-30 3412 Siskiyou Top of divide between Trinity River, N of road [no additional location data; W of interstate 5? V. Oswald]. Comment
  JEPS63424  Monardella odoratissima subsp. pallida W. L. Jepson 1894-8-4 59 f Siskiyou Mt. Shasta Comment
  LA54285  Monardella odoratissima subsp. pallida Carl Epling; 1940-7-26 15376 Siskiyou Mount Shasta, Diller Canyon Comment
  RSA215625  Monardella odoratissima subsp. pallida Gilbert Muth 1969-8-6 1196 Siskiyou Boulder Park. 2530 Comment
  CAS-BOT-BC220229  Monardella sheltonii H. A. Thomas; J. H. Thomas 1954-7-22 4442 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Rush and Big Bend Creeks, 0.25 - 0.5 miles N of S Fork of Salmon River 975 Comment
  CAS-BOT-BC220231  Monardella sheltonii Carl B. Wolf 1927-8-26 1078 Siskiyou On the Klamath River near Hamburg Comment
  JEPS73668  Monardella siskiyouensis W. L. Jepson 1940-6-22 19974 Siskiyou near Hornbrook; Klamath River 670 Comment
  SEINET13948723 Image available Monardella villosa E. K. Balls 1949-1 13906 Siskiyou Trail from Scott Mountain Camp to Carmen Lake, Scott Mt. 5750 ft alt. 1753 Comment
  SEINET10498958  Monardella villosa subsp. subserrata Morris 1973-6-2 MORRIS 362 Siskiyou Jct of shasta and klamath rivers on hwy 263 Comment
  HSC27617  Monotropa hypopitys Carl W. Mize 1972-6-23 98 Siskiyou Alongside trail from Camp 3. 709 Comment
  CHSC88108  Montia chamissoi Jenny Marr 1993-7-1 118 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA601896  Montia linearis L. C. Wheeler 1935-4-18 3431 Siskiyou Greenhorn Creek, Siskiyou Mountains. 944 Comment
  CAS-BOT-BC445210  Montia parvifolia Edward Lee 1934-8-13 1054 Siskiyou Indian Creek, 4 miles north of Happy Camp, Klamath National Forest 411 Comment
  HSC22223  Montia parvifolia J. O. Sawyer 1969-7-10 1293 Siskiyou E facing slope W of S Sugar Lake 2226 Comment
  CHSC114089  Muhlenbergia andina Kendra Sikes 2011-9-13 CLS_ 1 D Siskiyou Sundew Fen, Caldwell Lakes Basin, headwaters of Parks Creek, east slope of China Mountain; UTM Zone 10N, 537187E, 4580685N. 2028 Comment
  UCD86526  Muhlenbergia asperifolia A. A. Heller 1918-7-25 13082 Siskiyou Gravelly soil between Gazelle and Edgwood in the Shasta Valley. Upper Sonoran Life Zone. Comment
  CAS-BOT-BC267052  Muhlenbergia filiformis W. R. Dudley 1899-8-15 s.n. Siskiyou Near Bartletts Comment
  SD211513  Muhlenbergia filiformis Barbara Ertter 1990-7-14 9318 Siskiyou East side Mount Eddy circa 4 airmiles due West of Mount Shasta City, at streamlet near end of FR 41N53 circa 1 mile North of Morgan Meadows 1676 Comment
  JEPS44091  Nama densa W. B. and V. G. Cooke 1965-7-12 35194 Siskiyou Bolam Road , Bolam Road (Mt. Shasta) 1706 Comment
  CHSC2300  Narthecium californicum V. Holt 1932-7-10 Siskiyou Mt. Eddy. 2133 Comment
  CAS-BOT-BC516026  Narthecium californicum W. R. Dudley 1905-8-4 s.n. Siskiyou Meadow foot of Mount Eddy Comment
  RSA601498  Navarretia capillaris L. C. Wheeler 1935-7-26 3699 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  HSC86530  Navarretia divaricata D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar, N of Haypress Meadows 1372 Comment
  UC1409295  Navarretia divaricata Frederick W. Oettinger 1969-7-28 1091 Siskiyou n of Pine Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wildeness Area 2011 Comment
  UC163989  Navarretia intertexta Geo. D. Butler 1909-6-5 998 Siskiyou near Yreka Comment
  UCD48606  Navarretia intertexta subsp. propinqua Herbert L. Mason 1948-7-17 13600 Siskiyou Eastern Grass Lake, in forested hills, Siskiyou County. Comment
  UC726811  Navarretia linearifolia subsp. linearifolia A. A. Heller 1916-7-20 12476 Siskiyou near Wagon Creek Falls; e side Mt. Eddy, near Wagon Creek Falls 1371 Comment
  CAS-BOT-BC230561  Nemophila parviflora var. austiniae Geo. D. Butler 1910-4-24 1231 Siskiyou Quartz Valley Comment
  UC164107  Nemophila pedunculata Geo. D. Butler 1910-5-7 1302 Siskiyou around Yreka; around Yreka Comment
  POM73769  Nemophila pedunculata Geo. D. Butler 1910-5-7 1302 Siskiyou Fields near Yreka. Comment
  RSA60666  Noccaea I. L. Wiggins 1950-5-28 12359 Siskiyou Margins of Carmen Lake, ca. 1.5 miles E of Scott Mtn road. 1738 Comment
  CAS-BOT-BC60574  Noccaea fendleri subsp. glauca A. A. Heller 1915-7-15 12083 Siskiyou Mount Eddy. 2072 Comment
  CAS-BOT-BC60597  Noccaea fendleri subsp. glauca Lillian Mott 1976-7-4 38 LM76 Siskiyou Vicinity of Lily Pad Lake west of Cook and Green Pass. 2011 Comment
  RSA211335  Noccaea fendleri subsp. glauca William J. Ferlatte 1966-6-23 122 Siskiyou Dorleska summit; Trinity Alps. 2134 Comment
  CDA18414  Noccaea fendleri subsp. siskiyouense G. D. Barbe, T. C. Fuller & J. T. Howell 1980-4-29 2653 Siskiyou Klamath Ranges; Schoolhouse Hill, summit of Gazelle-Callahan Road, 7 miles (11.3 km) east of Callahan. 1173 Comment
  CAS-BOT-BC210244  Nothochelone nemorosa Dana York 2011-9-9 3101 Siskiyou Marble Mountain Wilderness. Klamath National Forest, boundary of Marble Mountain Wilderness adjacent to Isinglass Lake 1990 Comment
  HSC4841  Nothochelone nemorosa J. O. Sawyer 1968-9-28 743 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  UC1238906  Nothochelone nemorosa Freed W. Hoffman 1950-7-11 3494 Siskiyou Cedar Camp Road 30.1 mi from Klamath Highway (western Siskiyou County); North Coast Ranges, Cedar Camp Road Comment
  RSA0013864  Nuphar lutea subsp. polysepala Frederick W. Oettinger, R. F. Thorne 1969-8-7 1273 Siskiyou East side of English Lake. Salmon Mountains. The high lake basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  UC1222313  Oemleria cerasiformis Joseph P. Tracy 1951-6-16 19502 Siskiyou near State Line (at crossing of the Takilma-Happy Camp Road); Summit of the Siskiyous Comment
  UCD106834  Oenothera cespitosa Geo C. Wood 1940-4-29 s.n. Siskiyou Butte Valley. Comment
  UC164428  Oenothera deltoides subsp. piperi Geo. D. Butler 2000 Siskiyou Comment
  POM259019  Oenothera elata subsp. hirsutissima W. Bridge Cooke 1940-7-12 15325 Siskiyou Along the Castle Lake Road near Mount Shasta City. 1067 Comment
  UC164241  Olsynium douglasii var. douglasii Geo. D. Butler 1909-3-14 561 Siskiyou hills near Yreka Comment
  CDA7575  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
  SEINET13694636 Image available Onopordum tauricum T. C. Fuller 1960-4-26 s.n. Siskiyou Dorris Comment
  JEPS107393  Opuntia fragilis Lowell Ahart, John Dittes 2005-6-10 12101 Siskiyou 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
  CAS-BOT-BC355601  Oreostemma alpigenum var. andersonii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. Comment
  HSC92269  Oreostemma alpigenum var. andersonii Jennifer Whipple 1976-9-2 1763 Siskiyou Wagon Creek drainage near Wagon Creek 2195 Comment
  JEPS57398  Orobanche corymbosa subsp. mutabilis L. R. Heckard with T. I. Chuang 1968-7-3 1974 Siskiyou 2 miles north of Deer Lodge (ca. 18 miles north of Weed), along U. S. Highway 97. Comment
  RSA0066431  Orobanche fasciculata E. K. Balls 1949-7-8 13916 Siskiyou Trail from Scot Mountain Camp to Carmen Lake. 1752 Comment
  HSC22174  Orobanche uniflora J. O. Sawyer 1969-7-24 1498 Siskiyou SW of Sugar Lake 1890 Comment
  RSA0059263  Orobanche uniflora subsp. occidentalis George D. Butler 1909-4-4 730 Siskiyou Shasta Valley Comment
  HSC61864  Orogenia fusiformis Ruby Van Deventer Jun 1961 Siskiyou Poker Flat 1585 Comment
  HSC29321  Orthilia secunda Frederick W. Oettinger 1967-8-3 233 Siskiyou Marble Mtn. Wilderness Area, N facing wooded slope leading down from Little Hancock Lake to Hancock Lake 1982 Comment
  UC922457  Orthilia secunda Annie M. Alexander and Louise Kellogg 1949-7-28 5877 Siskiyou Sky High Valley, Marble Mountains 1767 Comment
  CAS-BOT-BC458095  Orthilia secunda Alice Eastwood 1912-8-30 2044 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC458097  Orthilia secunda Edward Lee 1934-8-13 1087 Siskiyou Watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1463 Comment
  RSA0083188  Orthilia secunda M. B. Dunkle 1944-7-18 9154 Siskiyou Sterling Mt. 1890 Comment
  RSA0083191  Orthilia secunda M. S. Baker 131 Siskiyou Hillside S.W. of Medicine Lake. Comment
  HSC34302  Orthocarpus cuspidatus subsp. copelandii J. P. Smith, J. O. Sawyer 1973-8-14 7298 Siskiyou On trail from Campbell Lake to Cliff Lake. 1829 Comment
  UCD123233  Orthocarpus cuspidatus subsp. copelandii Dean William Taylor 1972-7-4 1604 Siskiyou near Lily Pad Lake 3 miles west of Cook and Green Pass. 1981 Comment
  HSC65359  Orthocarpus cuspidatus subsp. copelandii R. White 1977-8-3 140 Siskiyou W side of pond above Elk Hole 1616 Comment
  JEPS4546  Orthocarpus cuspidatus subsp. copelandii John Thomas Howell 1939-8-4 15034 Siskiyou between Elk Mt. and Marble Rim (Marble Mts.); , btw Elk Mt. and Marble Rim Comment
  UC1333322  Orthocarpus cuspidatus subsp. copelandii Dorothy Parker 1949-7-4 225 Siskiyou near summit of Scott Mountain; near summit of Scott Mountain 1582 Comment
  UCD123228  Orthocarpus cuspidatus subsp. cuspidatus K. M. Meyer; A. Townesmith 2007-8-2 187 Siskiyou Klamath National Forest. 13.3 m on Forest Service Rd. 70, off US Hwy 97 toward Oregon. 1956 Comment
  UC1222794  Orthocarpus imbricatus Joseph P. Tracy 1950-7-20 19207 Siskiyou about 4 mi se Elk Valley (Del Norte Co.) (Flint Valley); , se of Elk Valley 1432 Comment
  UC412592  Osmorhiza berteroi Milo S. Baker 1898-8-1 505 Siskiyou on bluff sw Medicine Lake Comment
  HSC22170  Osmorhiza occidentalis J. O. Sawyer 1969-7-18 1384 Siskiyou Near South Russian Creek 1890 Comment
  HSC69284  Osmorhiza occidentalis Maralyn A. Renner 1980-7-24 1953 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  CAS-BOT-BC413218  Oxyria digyna Annie M. Alexander; Louise Kellogg 1949-7-28 5888 Siskiyou Sky High Valley, Marble Mountains 1767 Comment
  HSC30484  Oxyria digyna Frederick W. Oettinger 1969-8-25 1543 Siskiyou NE facing slope above Tanner Peak Trail, 400 yards down from English Peak Trail. 2134 Comment
  UC1216702  Packera cana W. B. and V. G. Cooke 1960-8-8 Siskiyou w bank Mud Creek Canyon; fell fields Mt. Shasta Comment
  UC579117  Packera cana J. William Thompson 1936-7-8 13150 Siskiyou Lava Beds National Monument Comment
  UC1234786  Paeonia brownii Peter H. Raven 1962-5-30 17993 Siskiyou US Hwy 97 8.3 mi n Weed Comment
  SD46544  Papaver rhoeas E. K. Balls, L. W. Lenz 1956-6-18 21719 Siskiyou U. S. Highway 99, Gazelle. 822 Comment
  JEPS83884  Parnassia californica Wayne Roderick July 1976 Siskiyou vicinity of Cook and Green Pass (along trail to Lily Pad Lake, Siskiyou Mountains); Siskiyou Mountains 1706 Comment
  SBBG25904  Parnassia californica D. Myrick 1966-8-8 1492 Siskiyou rd to Carter Ranch, Mountain Meadow Ranch, Big Flat 1524 Comment
  CAS-BOT-BC175508  Parnassia fimbriata J. M. Tucker; L. K. Mann; S. L. Holloway 1963-8-18 3745 Siskiyou Upper Canyon Creek, ca. 1/2 mile northeast of the Marble Valley Guard Station, Marble Mountain Wilderness Area 1920 Comment
  CAS-BOT-BC175606  Parnassia palustris Wm. Bridge Cooke 1939-8-24 13898 Siskiyou Throughout the area of Squaw Valley Creek meadows Comment
  CAS-BOT-BC202853  Paxistima myrsinites Doris K. Kildale 1929-7-21 8740 Siskiyou Elk Lick, south fork Indian Creek 1219 Comment
  HSC73219  Paxistima myrsinites Gail Newton 1980-6-20 503 Siskiyou Near Bald Mtn. 1097 Comment
  JEPS124777 Image available Paxistima myrsinites Lynne C. Carter 1967-7-12 102 Siskiyou ca. 1/4 mile west of entrance to Fowler Campground. On rocky cliff above McCloud River. Comment
  HSC293  Pedicularis attollens William J. Ferlatte 1966-8-17 396 Siskiyou Caribou Basin 1982 Comment
  SJSU2578  Pedicularis howellii H. L. Buckalew 1962-7-9 Siskiyou Poker Flat c. 3 mi W of junction of Indian Cr with W Branch Indian Cr, Siskiyou Mts 1143 Comment
  RSA758223  Pedicularis racemosa Robert F. Thorne 1969-8-2 63323 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  CAS-BOT-BC67689  Pellaea brachyptera Geo. D. Butler 1908-7-20 248 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC69318  Pellaea brachyptera Alice Eastwood 1922-10-18 11541 Siskiyou Shasta Springs Comment
  RSA237835  Pellaea brachyptera Frederick W. Oettinger 1968-8-6 538 Siskiyou South facing rather steep slope of Little Medicine Mountain due north of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2088 Comment
  JEPS7201  Penstemon anguineus Geo. D. Butler 1909-7-2 935 Siskiyou Highland Mine 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
  UC1238944  Penstemon anguineus Freed W. Hoffman 1948-7-8 2585 Siskiyou Waldo-Happy Camp Road n West Branch Camp (western Siskiyou County); North Coast Ranges, n of West Branch Camp Comment
  RSA165521  Penstemon anguineus Clare B. Hardham 1961-6-30 7999 Siskiyou Edge of woods Comment
  RSA211396  Penstemon anguineus William J. Ferlatte 1966-8-5 325 Siskiyou North side of Caribou Mtn. Trinity Alps. 1982 Comment
  SD73155  Penstemon anguineus Darley F. Howe 1969-8-30 Siskiyou North Fork of Salmon River near Blakes Creek, about 20 miles southwest of Aetna 1829 Comment
  JEPS32024  Penstemon cinereus W. B. and V. G. Cooke 1963-7-10 34268 Siskiyou along Bolam Logging Road (n side of Mount Shasta); n side Mount Shasta, Bolam Logging Road Comment
  JEPS45933  Penstemon cinereus Rimo Bacigalupi and L. R. Heckard 1966-6-13 9177 Siskiyou along Bolam Logging Road (n base of Mt. Shasta); , along Bolam logging road 1432 Comment
  CAS-BOT-BC265363  Penstemon davidsonii var. davidsonii Alice Eastwood 1912-9-1 2057 Siskiyou Mount Shasta Comment
  SFV17485  Penstemon davidsonii var. davidsonii P. Wilson 1998-7-21 3543 Siskiyou Mount Shasta. Sand Flat. 2073 Comment
  UC139723  Penstemon davidsonii var. davidsonii E. B. Copeland 1903-8-16 3871 Siskiyou Mount Shasta 3048 Comment
  UC1751242  Penstemon davidsonii var. davidsonii Annie M. Alexander and Louise Kellogg 1911-6-28 201 Siskiyou Wildcat Creek Comment
  HSC76743  Penstemon deustus K. T. Stillman 1976-7-15 265 Siskiyou Marble Mtn. Wilderness Area 1951 Comment
  SBBG16532  Penstemon deustus D. Myrick 1961-6-19 262 Siskiyou rd to Mt Shasta Ski Bowl 1371 Comment
  RSA75599  Penstemon deustus subsp. deustus Albert M. Vollmer, L. Beane 1951-6-2 39 Siskiyou Klamath River Hwy, between US 99 and Gottville. Comment
  RSA716056  Penstemon deustus var. suffrutescens L. Ahart 2005-6-9 12037 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  UC1017723  Penstemon deustus var. suffrutescens Marion Ownbey and Ruth P. Ownbey 1938-7-19 1750 Siskiyou 2.5 mi nw Dry Lake Lookout (summit of Siskiyou Mts.); Siskiyou Mts. Comment
  CHSC99206  Penstemon gracilentus L. P. Janeway; B. Castro 2007-7-28 9129 Siskiyou High Cascade Range. Medicine Lake Highlands; just north of the north edge of Medicine Lake Glass Flow. 2109 Comment
  UC618806  Penstemon gracilentus W. Bridge Cooke 1938-8-21 11547 Siskiyou on lava flats and slopes around Horse Camp (on the sw side Mount Shasta); sw side Mount Shasta, Horse Camp 2438 Comment
  RSA21195  Penstemon gracilentus Carl B. Wolf 1937-8-8 9083 Siskiyou SW side of Mt Shasta, along John S. Everett Memorial Hwy. 2134 Comment
  CHSC29297  Penstemon heterodoxus var. shastensis J. D. Prouty 1979-7-28 79 .28 Siskiyou Island in the employee parking lot, McCloud Ranger Station, McCloud. Comment
  NY601601  Penstemon heterodoxus var. shastensis H. E. Brown 1897-7-1 508 Siskiyou South side of Mount Shasta 1524.0 Comment
  CDA33280  Penstemon heterodoxus var. shastensis T. C. Fuller 1963-6-13 8993 Siskiyou South side of Hwy 89 to Lake Britton, 0.5 mile east of Bartle 0 Comment
  JEPS101505  Penstemon humilis var. humilis Dean W. Taylor 1997-6-11 16046 Siskiyou Duzel Rock, headwaters Moffett Creek, Scott River drainage 2072 Comment
  HSC97132  Penstemon laetus subsp. sagittatus L. Ahart, John Dittes 2005-6-9 12029 Siskiyou Hill, S of rock fence, 100 yds. NE of where cattle water in Shasta River, 3/5 mi. S of Hwy. 99/97 Cutoff, 2.5 mi. ESE of Grenada 775 Comment
  UCR37542  Penstemon laetus subsp. sagittatus L. P. Janeway 1983-8-13 527 Siskiyou S side of upper S Fork Indian Creek 1311 Comment
  CHSC93546  Penstemon laetus var. sagittatus Lowell Ahart; John Dittes 2005-6-9 12029 Siskiyou Hill, south of a rock fence, about 100 yards northeast 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
  SEINET272936 Image available Penstemon laetus var. sagittatus Karl A. Vincent 1987-6-28 4440 Siskiyou Cascade Range Mt. Shasta; common old roadbed in lava flow area along E side of US 97 ca 5.1 mi NE of jct. I-5 bus. lo 1158 Comment
  HSC63251  Penstemon newberryi subsp. berryi M. A. Baker 1979-7-30 1078 Siskiyou Draw W of Rainy Lake Comment
  RSA150583  Penstemon newberryi subsp. newberryi Lee W. Lenz 1961-6-21 24354 Siskiyou Rd to Panther Flat, Mt Shasta. 1585 Comment
  CAS-BOT-BC239335  Penstemon newberryi var. berryi Carl B. Wolf 1934-7-6 6021 Siskiyou SW. slope of Mt. Shasta. 1/2 mi. So. of trail to Horse Camp 1524 Comment
  CAS-BOT-BC239337  Penstemon newberryi var. berryi Donald Myrick 1961-6-19 263 Siskiyou On road to Mt. Shasta Ski Bowl Comment
  HSC81671  Penstemon parvulus Thomas W. Nelson, Jane P. Nelson 1980-7-17 6074 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  JEPS11202  Penstemon parvulus Geo. D. Butler 1909-7-15 937 Siskiyou Highland Mine Comment
  UC705758  Penstemon parvulus Marion Ownbey, Fred G. Meyer 1940-7-7 2215 Siskiyou summit of Cayenne Ridge , summit of Cayenne Ridge (Marble Mt.) 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
  HSC91108  Penstemon parvulus Jennifer Whipple 1976-6-23 1108 Siskiyou Mt. Eddy, E and S facing slopes draining into the N Fork of the Sacramento River 2256 Comment
  HSC75126  Penstemon roezlii J. P. Smith, Thomas W. Nelson 1979-6-16 10145 Siskiyou Klamath National Forest, along FS Rd. 40N03, 0.3 mi. from its junction with Hwy. 3, 2.72 mi. from county line 1463 Comment
  CHSC86684  Penstemon rydbergii var. oreocharis Jenny Marr 1993-7-1 67 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC27142  Penstemon speciosus Amos Arthur Heller 1905-6-8 7991 Siskiyou Yreka Comment
  JEPS11509  Penstemon speciosus Milo S. Baker Aug. 1897 150 Siskiyou Top of Medicine Lake Mts. Comment
  SBBG19750  Penstemon speciosus H. and M. Dearing 1939-6-4 3542 Siskiyou near Weed Comment
  SBBG25821  Perideridia gairdneri D. Myrick 1966-8-13 1550 Siskiyou below Mountain Meadow Ranch, Big Flat, Trinity Alps 1524 Comment
  SEINET3860793  Perideridia leptocarpa L. Constance, T. I. Chuang; et al. 1966-6-15 3768 Siskiyou Above Trinity River 5 mi NW of Cecilville.; 0 762 Comment
  CHSC30213  Phacelia cookei B. Williams 1980-6-10 Siskiyou On both sides of Military Pass Rd, ca. 4 mi s of Klamath Falls Hwy, ca. 4 mi n of Mt. Shasta. 1371 Comment
  HSC68991  Phacelia corymbosa Maralyn A. Renner 1980-7-28 2171 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  JEPS2787 Image available Phacelia frigida W. L. Jepson 1894-8-4 21042 Siskiyou Mt. Shasta Comment
  CDA40369  Phacelia greenei F. D. & C. L. Horn 1980-6-1 s.n. Siskiyou In Red Rock Gulch, old road west of Highway 3, Yreka. 0 Comment
  UCD77218  Phacelia hastata subsp. compacta Robert E. Preston 2001-7-21 1734 Siskiyou Klamath National Forest, Rainbow Mountain, T42N R1W se 1/4 of ne 1/4 Section 22 2194 Comment
  JEPS2086  Phacelia heterophylla subsp. virgata Geo. D. Butler 1928-6-28 409 Siskiyou near Yreka; Butler's Ranch Comment
  HSC42397  Phacelia heterophylla subsp. virgata Rich White 1977-5-21 72 Siskiyou Junction of Miners Creek Rd. and Rd. 8 , 5.5 mi. W of Callahan. Comment
  UC1055964  Phacelia heterophylla subsp. virgata Edw. L. Greene June 1876 Siskiyou Comment
  POM73588  Phacelia mutabilis Geo. D. Butler 1908-8-8 408 Siskiyou Marble Mountain. 1829 Comment
  CHSC105865  Phacelia pringlei Julie Kierstead Nelson 2010-7-3 2010 -012 Siskiyou Scott Mountain; Road 40N08 from hwy 3 at summit to Carment Lake, at Pacific Crest Trail crossing. 1676 Comment
  HSC64584  Phacelia pringlei J. O. Sawyer 1979-5-26 3361 Siskiyou Along Hwy. 3, N side of Scott Mountain. 1341 Comment
  UC1473424  Phacelia pringlei Gilbert Jerome Muth 1978-8-2 7340 Siskiyou near Cabin Meadow Creek (close to town of Callahan); China Mt. Quadrangle 1853 Comment
  UC923132  Phacelia procera Freed W. Hoffman 1950-7-13 3338 Siskiyou Baldy Mountain Lookout North Coast Ranges (w Siskiyou Co.) 1737 Comment
  UCSB14940  Phacelia procera Breedlove, Dennis 1961-7-5 Siskiyou 14.0 miles southeast of Obrien on road to Happy Camp, Siskiyou Mountains 1463 Comment
  HSC67964  Philadelphus californicus J. P. Smith 1976-5-22 8790 Siskiyou Callahan Rd. along the E side of Scott Valley 1037 Comment
  CAS-BOT-BC77408  Philadelphus lewisii C. H. M. 1919-9-24 s.n. Siskiyou Klamath Canyon, mouth of Shovel Creek Comment
  CAS-BOT-BC77435  Philadelphus lewisii Lewis S. Rose 1945-6-18 45078 Siskiyou Horse Creek & Klamath River 502 Comment
  UC1034620  Philadelphus lewisii unknown 1955-6-27 4 Siskiyou 0.8 mi n Callahan (in dredgings near Hjertagers' Mill); Klamath Mountains 975 Comment
  UC1408863  Philadelphus lewisii Frederick W. Oettinger and R. F. Thorne 1969-8-5 1200 Siskiyou on English Lake trail above Willow Spring (high lake basins in vicinity of English Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  RSA0097453  Philadelphus lewisii Walter Wisura, J. Romero 1991-10-17 4594 Siskiyou 4.9 mi W of Gazelle along rd to Callahan. Comment
  CHSC69102  Phleum alpinum Vernon Oswald; Lowell Ahart 1997-7-28 8788 Siskiyou Southeast of Medicine Lake on road 43N54 at a meadow 0.6 mi southeast of Paynes Springs. 1920 Comment
  UC196937  Phleum alpinum Geo. D. Butler 1908-8-7 489 Siskiyou head of West Fork of Woolly Creek Comment
  SJSU2560  Phlox adsurgens H. L. Buckalew 1962-7-7 Siskiyou junction of Indian Cr & W Branch Indian Cr, Siskiyou Mts Comment
  HSC46348  Phlox diffusa J. P. Smith 1973-5-5 6424 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  RSA78684  Phlox diffusa subsp. diffusa P. A. Munz 1952-7-2 17881 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1494 Comment
  RSA237978  Phlox diffusa subsp. subcarinata Frederick W. Oettinger 1968-8-19 586 Siskiyou English Peak Gap. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  UC932085  Phlox douglasii subsp. rigida Verne Grant and Alva Grant 1947-6-5 7977 Siskiyou Modoc Lava Beds Comment
  CDA40293  Phlox gracilis G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2604 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  CAS-BOT-BC232826  Phlox hirsuta R. C. Barneby 1954-5-16 11528 Siskiyou 6 miles SW of Yreka Comment
  SEINET10638272  Phlox hirsuta Edward L. Greene 1876-1 Siskiyou Comment
  HSC45154  Phlox speciosa subsp. nitida J. O. Sawyer, E. Cope 1977-6-19 2952 Siskiyou Clear Creek Trail between Preston Creek and Trout Camp 915 Comment
  HSC81763  Phlox speciosa subsp. occidentalis Thomas W. Nelson, Jane P. Nelson 1980-7-20 6170 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  RSA47600  Phlox speciosa subsp. occidentalis Roxana S. Ferris, Laura Lorraine 1948-6-12 11848 Siskiyou Gazelle Mountain grade, road between Callahan and Gazelle. 1500 Comment
  JEPS84106  Phoenicaulis cheiranthoides L. R. Heckard with J. Hickman et al. 1986-7-17 6545 Siskiyou 1 mi ne of Buckhorn 2100 Comment
  UC1017687  Phoenicaulis cheiranthoides Marion Ownbey and Ruth P. Ownbey 1938-7-19 1752 Siskiyou 2 1/2 mi. n.w. Dry Lake Lookout (summit of Siskiyou Mts.); Siskiyou Mts. Comment
  CAS-BOT-BC135025  Phoradendron bolleanum Alice Eastwood 1922-10-23 11559 Siskiyou Yreka Comment
  CAS-BOT-BC135027  Phoradendron bolleanum Louis C. Wheeler 1934-6-26 2789 Siskiyou Hornbrook 731 Comment
  UCR168480  Phragmites australis L. C. Wheeler 1934-10-21 3335 Siskiyou Shasta Valley, 4 miles east of Grenada 869 Comment
  RSA142618  Phyllodoce empetriformis P. A. Munz 1960-8-22 14187 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  CAS-BOT-BC60768  Physaria occidentalis John Thomas Howell 1939-8-4 15053 Siskiyou Marble Rim. 1889 Comment
  UCD116160  Physaria occidentalis subsp. occidentalis Jack Major; M. Fleschner, R. Pemble 1966-9-4 s.n. Siskiyou Northeast face of Marble Mountain, Marble Mountains. 2225 Comment
  RSA300521  Physocarpus capitatus Walter Wisura, John Dourley 1982-10-16 3874 Siskiyou Shores of Castle Lake, SW of town of Mt. Shasta. 1646 Comment
  CAS-BOT-BC73473  Picea breweriana John Thomas Howell 1937-7-24 13413 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  UCD134308  Picea engelmannii J. M. Tucker 1963-7-5 3707 Siskiyou Lower Blake's Fork of South Russian Creek (a tributary to Salmon River), ca. 7 miles (airline) east of Siskiyou County. 1524 Comment
  UC572792  Pinus albicaulis unknown 1937-7-28 9163 Siskiyou Mt. Shasta 2590 Comment
  UC618745  Pinus albicaulis W. B. Cooke 1938-9-17 11680 Siskiyou Horse Camp Mount Shasta, Horse Camp 2438 Comment
  CAS-BOT-BC73392  Pinus albicaulis L. A. Siemens 1970-5-9 170 Siskiyou Mt. Shasta - Cascade Ridge 2590 Comment
  CAS-BOT-BC78327  Pinus attenuata W. B. C. 1938-8-19 11534 Siskiyou Below Wagon Camp 1676 Comment
  SEINET3871798  Pinus attenuata T. Charlet, David A. Charlet 1996-12-15 2350 Siskiyou Mt. Shasta, lower southern slopes along State Highway 89, from a few miles east of McLeod to a few miles west of Bartle.; 0 Comment
  CAS-BOT-BC78403  Pinus balfouriana Richard Mc. P Brown; Robert Craig 1974-7-26 s.n. Siskiyou Klamath National Forest, Trinity Alps, Caribou Lake 2097 Comment
  UC1272962  Pinus balfouriana J. M. Tucker and L. K. Mann 1963-8-18 3770 Siskiyou on saddle between Marble Mountain and southwest ridge of Black Mountain; Marble Mountain Wilderness Area 2103 Comment
  NY49386  Pinus balfouriana P. H. Raven 1956-9-4 10391 Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  HSC1513  Pinus lambertiana R. C. Wunner 1965-9-12 514 Siskiyou Lava Beds National Monument, N side of Caldwell Minor 1448 Comment
  HSC27950  Pinus lambertiana Carl W. Mize 1972-9-23 118 Siskiyou End of road 945 Comment
  CAS-BOT-BC78949  Pinus monticola Doris K. Kildale 1928-8-19 6537 Siskiyou summit of Divide at Hancock Lake, trail to Marble Mt. 2194 Comment
  HSC69371  Pinus monticola J. O. Sawyer, J. Cole 1980-7-19 3673 Siskiyou N and W of Little Mt. Hoffman 1982 Comment
  CAS-BOT-BC78961  Pinus monticola W. R. Dudley 1901-8-25 s.n. Siskiyou Salmon to Scotts Creek Comment
  JEPS32026  Plagiobothrys hispidus W. B. and V. G. Cooke 1963-7-10 34273 Siskiyou n side Mt. Shasta (in Bolam logging road); , Bolam 2133 Comment
  JEPS105206  Plagiobothrys kingii var. harknessii Dean W. Taylor 1995-6-4 14965 Siskiyou 3 miles west of Highway 89 on Grenada Road; Shasta Valley; Klamath National Forest; (ca. 10 miles North of Weed) 1158 Comment
  POM72153  Plagiobothrys nothofulvus Geo. D. Butler 1910-5-6 1293 Siskiyou Near Yreka. Comment
  POM229187  Plagiobothrys tenellus L. C. Wheeler 1935-5-18 3495 Siskiyou Siskiyou Mountains; Yreka Creek (Mt. Diablo Mer.) 854 Comment
  RSA46764  Plagiobothrys tenellus L. S. Rose 1945-6-18 45064 Siskiyou Horse Creek and Klamath River. 503 Comment
  RSA600381  Plantago eriopoda Louis C. Wheeler 1934-10-13 3321 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Shasta River, 2 miles below Yreka Creek. 671 Comment
  RSA237607  Plantago major Frederick W. Oettinger 1969-8-13 1359 Siskiyou Where stock are kept at English Lake main campsite. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  CAS-BOT-BC136640  Platanthera Arthur Menzies 1962-7-21 s.n. Siskiyou Field redacted by CAS, contact the data manager for more information 1706 Comment
  HSC92097  Platanthera dilatata var. leucostachys Jennifer Whipple 1976-7-24 1565 Siskiyou Mount Eddy. SW of Dobkins Lake, along drainage into lake 2226 Comment
  HSC97404  Platanthera dilatata var. leucostachys A. Montalvo, J. D. Ackerman 1974-8-18 427 Siskiyou 1 mi. N of mine on W slope of El Capitan, Siskiyou Mtns., Preston Peak area 1524 Comment
  SEINET10905339  Platanthera dilatata var. leucostachys Mary Susan Taylor 1980-1 Siskiyou 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
  RSA382873  Platanthera leucostachys M. B. Dunkle 1945-7-8 9212 Siskiyou Big Rock Spring; Klamath National Forest; Marble Mts. Comment
  RSA68929  Platanthera leucostachys A. E. Culbertson 1943-7-12 29 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000 backwall; 14 miles SW 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
  HSC483  Platanthera sparsiflora William J. Ferlatte 1967-7-9 685 Siskiyou Kidd Creek Trail 1890 Comment
  HSC60787  Platanthera sparsiflora Ruby Van Deventer Siskiyou Bell Echo Camp in Youngs Valley Comment
  RSA237638  Platanthera stricta Frederick W. Oettinger 1968-8-3 382 Siskiyou Base Camp Meadow at mid-trail between Diamond and Hancock Lakes. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  UC890145  Plectritis brachystemon W. Bridge Cooke 1941-6-7 16001 Siskiyou eastern base of Mount Eddy Mount Eddy 1066 Comment
  HSC67533  Plectritis congesta J. P. Smith 1973-5-5 6568 Siskiyou Scott Bar along the Scott River Comment
  UC1025004  Poa bolanderi Leo Whitney 1935-7-15 3467 Siskiyou 2 mi se Medicine Lake (near Bullseye Lake) Comment
  UC39614 Image available Poa bolanderi Harley P. Chandler 1901-6-1 1703 Siskiyou near Marble Mountain (Shackleford Canyon); North Coast Ranges; Shackleford Canyon, near Marble Mt., Siskiyou Co. 1828 Comment
  UCD90541  Poa bolanderi Francia Chisaki; Helen Sharsmith 1959-8-20 4733 Siskiyou on Carrigher's Summit. Divide between Scott River and East Fork Salmon River. 1981 Comment
  UCD90582  Poa bolanderi A. H. Murphy 1956-8-15 56 H Siskiyou Klamath National Forest. Tangle Blue Creek. 1767 Comment
  CAS-BOT-BC254992  Poa bulbosa Dorothy Parker 1948-6-12 s.n. Siskiyou Parker Ranch, Plowman's Valley Comment
  CAS-BOT-BC254999  Poa bulbosa Morris Halperin 1930-1-1 s.n. Siskiyou Yreka Comment
  CDA2381  Poa bulbosa T. C. Fuller 1958-6-19 1829 Siskiyou Railroad yard, Montague. 0 Comment
  HSC65257  Poa bulbosa J. P. Smith 1973-5-5 6394 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  CAS-BOT-BC246633  Poa howellii Alice Eastwood 1923-5-27 11950 Siskiyou Shasta Springs, on road to McCloud Comment
  SEINET11683993  Poa howellii var. chandleri H. P. Chandler 1901-1 1703 Siskiyou near Marble Mountain, North Coast Ranges 1524 Comment
  CDA18410  Poa pratensis G. D. Barbe, T. C. Fuller & J. T. Howell 1980-4-29 2627 Siskiyou Klamath Ranges; 0.25 miles northeast of Oro Fino. 883 Comment
  SEINET10605106  Poa pratensis H. E. Brown 1897-6-1 Brown 374 Siskiyou Near Sisson 1084 Comment
  SEINET10893840  Poa pratensis subsp. pratensis Lawrence P. Janeway 1983-7-26 Janeway 592 Siskiyou Preston Peak quad (15') T18N, R6E, SW 1/4 of sec. 20, Siskiyou Mountains; at Poker Flat, a meadow in a fir forest. Dry front edge of the upper part of the meadow. 1524 Comment
  UC1023732  Poa pringlei W. Bridge Cooke 1941-9-10 16293 Siskiyou above Horse Camp; Mt Shasta Comment
  SEINET10954314  Poa scabrella Frank W. Gould 1940-5-15 Gould 1234 Siskiyou Lower Bull Meadow, Goosenest Mountain, in dry soil at edge at wet meadow. Comment
  POM113795  Poa secunda Geo D. Butler 1909-5-22 821 Siskiyou Yreka Comment
  UCD90457  Poa secunda L. Whitney 1934-6-29 2224 Siskiyou Antelope Creek, near Tennant. 1463 Comment
  UCD148981  Poa secunda subsp. juncifolia G. Douglas Barbe; T. C. Fuller, J. T. Howell 1980-4-28 2587 Siskiyou between Old Highway 99 and railroad at Truttman Lane, 2.3 km south of Grenada. 800 Comment
  CAS-BOT-BC243226  Poa secunda subsp. secunda Ira L. Wiggins 1955-7-27 13527 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive area 2042 Comment
  JEPS84090  Poa secunda subsp. secunda L. R. Heckard with S. D'Alcamo, and J. Hickman 1986-7-16 6388 Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1.5 mi e of Red Butte summit) 1900 Comment
  UCD37080  Poa secunda subsp. secunda Beecher Crampton 1956-8-21 3815 Siskiyou 15 miles SW of Mount Shasta, slope above Gumboot Lake, headwater of S fork of Sacramento River. 1920 Comment
  JEPS19783  Pogogyne zizyphoroides Rimo Bacigalupi with S. Galen Smith 1957-6-26 5940 Siskiyou about 2 1/2 miles Northwest of Weed, close to U.S. highway 99 1005 Comment
  UC922452  Polemonium californicum Annie M. Alexander and Louise Kellogg 1949-7-20 5819 Siskiyou Paradise Lake Marble Mountains, Paradise Lake 1920 Comment
  UC933398  Polemonium californicum Annie M. Alexander and Louise Kellogg 1948-9-9 5608 Siskiyou Taylor Lake Siskiyou Mountains, Taylor Lake 1828 Comment
  POM75554  Polemonium californicum Geo D. Butler 1910-7-9 1717 Siskiyou Marble Mountain. 1829 Comment
  RSA215619  Polemonium californicum Gilbert Muth 1969-8-8 1292 Siskiyou Gap Meadow, Boulder Peak Ridge. 2287 Comment
  SEINET4244390 Image available Polemonium californicum J. M. Tucker 1963-7-7 3725 Siskiyou Paradise Lake, at base of King's Castle, east side of Marble Mountain Wilderness Area Comment
  UC1190248  Polemonium californicum Ira L. Wiggins 1955-7-29 13574 Siskiyou n-facing slope between Caribou Lake and Pass to Thompson Creek; btw Caribou Lake and Pass to Thompson Creek 1956 Comment
  UCD118480  Polemonium micranthum Fred G. Andriessen 1967-3-22 s.n. Siskiyou F. Douglas Horn ranch, in Scott Valley, ca. 11 miles south of Fort Jones and ca. 4 miles east of Etna. Comment
  SJSU6483  Polyctenium fremontii R. W. Trivelpiece 1972-6-9 97 Siskiyou c. 4 mi E of Grass L 1524 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
  CHSC71292  Polyctenium fremontii var. fremontii Vernon H. Oswald; Lowell Ahart 1998-6-11 9200 Siskiyou Dry Lake on the south side of Tennant Rd. ca. 9 air mi east of Grass Lake, ca. 22 air mi northeast of Weed. In meadow bordering the lake. 1402 Comment
  JEPS83035  Polyctenium fremontii var. fremontii L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2300 Siskiyou 0.8 mi. s. of Bray junction on U.S. Hwy. 97 Murphy Wells 1493 Comment
  HSC27592  Polygala cornuta Carl W. Mize 1972-6-21 69 Siskiyou Along trail about 3/8 mi. from corner 343 Comment
  RSA460150  Polygala cornuta var. cornuta Chadwick, Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  UC17452  Polygala cornuta var. cornuta Milo S. Baker 1893-8-20 Siskiyou Dunsmuir Sac. Canyon Comment
  CHSC88095  Polygonum aviculare Jenny Marr 1993-7-1 105 Siskiyou Butte Valley Wildlife Area, +- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1331765  Polygonum cuspidatum T. C. Fuller 1968-8-1 17452 Siskiyou ne corner of Siskiyou Ave. and Interstate 5 freeway (n limits of Dunsmuir); Dunsmuir Comment
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May 24 2006
  JEPS74541  Polygonum davisiae W. J. Ferlatte 1966-7-6 186 Siskiyou Caribou Mtn. Trinity Alps 2468 Comment
  JEPS84296  Polygonum davisiae L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6416 Siskiyou e slope of mt. town of Seiad Valley (ca 5 mi n, cirque at head of Hell's Canyon); Kangaroo Mountain 1828 Comment
  RSA184723  Polygonum kelloggii Gilbert Muth 1966-7-19 425 Siskiyou Horse pasture above camp, Marble Mtns. 1799 Comment
  CAS-BOT-BC418598  Polygonum minimum G. J. Muth 1969-8-8 1279 Siskiyou Gap Meadow, Boulder Peak Ridge Comment
  RSA237765  Polygonum minimum Frederick W. Oettinger 1969-8-14 1371 Siskiyou Campsite, English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  UC1191237  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1948-7-18 13624 Siskiyou Grass Lake Comment
  SEINET13711311  Polygonum polygaloides subsp. confertiflorum Lowell William Ahart, Lowell William Ahart 1998-1 9335 Siskiyou NE of Weed and E of Grass Lake at Gravel Pit on S Side of Tennant Rd. (T44N, R1W, sec 32, NW 1/4) 4600 Ft. 1402 Comment
  CAS-BOT-BC420065  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1948-7-17 13599 Siskiyou Eastern Grass Lake Comment
  CAS-BOT-BC420067  Polygonum polygaloides subsp. kelloggii Alice Eastwood 1921-7-29 10954 a Siskiyou Medicine Lake Comment
  CDA22796  Polygonum sawatchense subsp. oblivium F. D. Horn 1980-7-18 Siskiyou End of Big Rock Road, Shastina Properties, Weed. 0 Comment
  UC127333  Polygonum sawatchense subsp. sawatchense H. M. Hall and E. B. Babcock June, 1903 4049 Siskiyou near Sisson; Mount Shasta 1066 Comment
  RSA82768  Polygonum shastense R. Tofsrud, J. M. Tucker 1948-8-2 1765 Siskiyou Panther Meadows, S slope of Mt. Shasta. 2409 Comment
  SBBG21888  Polygonum shastense D. Myrick 1964-7-25 968 Siskiyou Panther Meadows below Ski Bowl Lodge, Mt Shasta 2346 Comment
  UC1037193  Polygonum shastense Leo Whitney 1934-6-17 1508 Siskiyou Mt. Shasta; n side 3048 Comment
  CAS-BOT-BC421078  Polygonum spergulariiforme Alice Eastwood 1912-8-30 1992 Siskiyou Mount Eddy Comment
  POM2370  Polygonum spergulariiforme Geo. D. Butler 1910-7-31 1803 Siskiyou Near Yreka Comment
  SEINET10937598  Polygonum spergulariiforme Lowell Ahart, Peter Ahart 1983-9-13 Ahart 4411 Siskiyou Near Hwy 96, near the Klamath River, ca. 5 mi w of Interstate 5. Yellow Pine Forest; 1000 m. 1000 Comment
  HSC69311  Polystichum imbricans Maralyn A. Renner 1980-7-24 1971 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  CAS-BOT-BC76737  Polystichum imbricans subsp. imbricans Lewis S. Rose 1945-6-18 45079 Siskiyou Horse Creek & Klamath River 502 Comment
  UC1481730  Polystichum lemmonii A. Lefebvre Oct 1941 Siskiyou 2 mi e White Mt. Comment
  RSA756838  Polystichum lemmonii Barbara Ertter 1990-7-16 9374 Siskiyou NW side of Mount Eddy, 8 air miles SW of Weed, 1-2 miles from Parks Creek trailhead (=crest of Rt 17) along ridge 2287 Comment
  UC185240  Polystichum lemmonii Geo. D. Butler 1910-7-12 1756 Siskiyou Schackleford Creek 1371 Comment
  CAS-BOT-BC72405  Polystichum lonchitis John Thomas Howell 1939-8-3 14991 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC19183  Polystichum munitum J. O. Sawyer 1968-9-13 721 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  SEINET8671627 Image available Polystichum munitum W. Bridge Cooke 1937-1 9133 Siskiyou Mt. Shasta 1524 Comment
  UC1597991  Polystichum munitum Alan R. Smith with Christopher Richard, C. Don MacNeill, and Bernard Stoffel 1993-5-9 2549 Siskiyou ca. 1/2 mi sw Three Sisters (Little Fern Cave, ca. 2 mi along rail to Three Sisters, n side of and immediately adjacent to trail); Lava Beds Nat'l Monument 1341 Comment
  CAS-BOT-BC72518  Polystichum scopulinum Louis C. Wheeler 1934-8-13 3113 Siskiyou East Fork Horse Creek 1981 Comment
  HSC66086  Polystichum scopulinum M. Sacks 1977-10-4 16 Siskiyou S facing slope, N side of main rd. between Callahan and Cecilville, 6 mi. SW of Callahan 1463 Comment
  SEINET8263372  Populus fremontii Frank Callahan 2007-1 Siskiyou Moffett Creek. 884 Comment
  CAS-BOT-BC102772  Populus tremuloides E. G. Dudley 1907-8-16 s.n. Siskiyou Peak N. of Jackson Lake Comment
  HSC19176  Populus tremuloides J. O. Sawyer 1968-6-18 215 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  UC375241  Populus tremuloides Geo. D. Butler 1908-8-3 533 Siskiyou Log Lake , Shackleford Creek (Shackleford Creek) Comment
  HSC67627  Populus trichocarpa J. P. Smith, Steve Selva 1970-7-15 4345 Siskiyou Klamath National Forest, road to Happy Camp. 732 Comment
  JEPS80503  Populus trichocarpa Gilbert Muth 1966-7-19 421 Siskiyou Marble Gap Trail; Marble Mt. Wilderness Area, Marble Gap Trail 1828 Comment
  POM107368  Populus trichocarpa Geo. D. Butler 1910-4-16 1177 Siskiyou Yreka Creek. Comment
  UC164391  Populus trichocarpa Geo. D. Butler 1910-4-16 1177 Siskiyou Yreka Creek Comment
  HSC61505  Potamogeton nodosus Ruby Van Deventer 9 Aug [year missing] Siskiyou Kelley Lake and Kelley Lake Trail Comment
  HSC100794  Potamogeton pusillus var. tenuissimus Lowell Ahart, John Dittes 2010-7-30 16963 Siskiyou In the Shasta river, ~30 yd. NW of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 (air) mi. SW of Big Springs Lake, 4.6 (air) mi. NW of Dwinnel Dam, and 5.7 (air) mi. SE of Grenada. 717 Comment
  SEINET3893289  Potamogeton richardsonii K. Morris, Conrad; Dunn 1973-6-2 343 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy. 263.; 0 Comment
  CDA26069  Potentilla anserina subsp. anserina Vernon H. Oswald & Lowell Ahart 1998-6-11 9212 Siskiyou Old State Highway, 0.5 mile west of Bray, ca 10 air miles east of Grass Lake located on Highway 97, ca. 23 air miles northeast of Weed. Comment
  HSC29382  Potentilla breweri Frederick W. Oettinger 1969-7-13 1000 Siskiyou High Lake Basins near English Peak: Marble Mtn. Wilderness Area; N of upper English Lake 1951 Comment
  JEPS57173 Image available Potentilla cristae L. R. Heckard 1967-8-13 1702 Siskiyou Summit Region of Mount Eddy 2743 Comment
  CAS-BOT-BC142032  Potentilla drummondii Doris K. Kildale 1928-8-19 6524 Siskiyou English Lake - head of north fork of Salmon River 1828 Comment
  HSC86548  Potentilla drummondii D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar 1372 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
  HSC96322  Potentilla flabellifolia Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 470 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  CAS-BOT-BC143254  Potentilla flabellifolia H. A. Thomas; J. H. Thomas 1954-7-24 4494 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  RSA211468  Potentilla flabellifolia William J. Ferlatte 1966-8-17 390 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  JEPS84267  Potentilla fruticosa L. R. Heckard with J. Hickman et al. 1986-7-17 6542 Siskiyou se Condrey Mt. (Alex Hole); se of Condrey Mt., Alex Hole 1960 Comment
  CHSC86636  Potentilla gracilis Jenny Marr 1993-7-1 19 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC62286  Potentilla gracilis Al Hobart 1967-8-8 Siskiyou Youngs Valley 1524 Comment
  CAS-BOT-BC540570  Potentilla gracilis var. fastigiata Alice Eastwood 1912-7-15 1110 Siskiyou McCloud Comment
  HSC29385  Potentilla gracilis var. fastigiata Frederick W. Oettinger 1968-9-10 816 Siskiyou Marble Mtns. Wilderness Area, Horse Range Lake meadow 1829 Comment
  CAS-BOT-BC158527  Potentilla millefolia A. A. Heller 1905-6-20 8074 Siskiyou Gazelle Station Comment
  CAS-BOT-BC158532  Potentilla millefolia L. E. Smith 1913-5-18 269 Siskiyou Gazelle Comment
  CHSC118638  Potentilla millefolia Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Motagne 2016-6-9 2016 -008 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles nothwest of Stewart Springs UTM NAD 83 Zone 10, 539582m E, 4586490m N. 1371 Comment
  HSC4471  Primula suffrutescens William J. Ferlatte 1967-8-20 1045 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  RSA211268  Primula suffrutescens William J. Ferlatte 1966-8-17 399 Siskiyou Caribou Basin, Sawtooth Ridge. 2043 Comment
  CAS-BOT-BC158228  Prunus emarginata Gilbert Muth 1966-7-8 373 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CAS-BOT-BC158241  Prunus emarginata Wm. Bridge Cooke 1938-6-17 11011 Siskiyou Sisson Southern Trail Comment
  HSC19188  Prunus emarginata J. O. Sawyer 1968-6-18 216 Siskiyou Headwaters of Blake's Fork of S Russian Creek. 1738 Comment
  LA208061  Prunus emarginata W. B. C.; 1938-6-17 11061 Siskiyou Mount Shasta, along the Sisson Southern Trail 1371 Comment
  POM275643  Prunus emarginata Lyman D. Benson 1933-8-9 5678 Siskiyou Mt. Shasta City. Cascade Mountain range 915 Comment
  SEINET9362850  Prunus emarginata Unknown 2009-5-31 Siskiyou High elevation, semi-arid ecosystem; native species; collected at Lava Beds National Monument, directly South of Tulelake, CA. Comment
  CAS-BOT-BC151238  Prunus virginiana var. demissa John Thomas Howell 1939-8-4 15051 Siskiyou Marble River, Marble Mts. 1889 Comment
  CAS-BOT-BC151242  Prunus virginiana var. demissa Doris K. Kildale 1929-5-31 9125 Siskiyou Cecilville, South Fork Salmon River Comment
  CAS-BOT-BC151249  Prunus virginiana var. demissa Geo. D. Butler 1910-7-24 1795 Siskiyou Yreka Creek Comment
  UC618858  Prunus virginiana var. demissa W. Bridge Cooke 1939-8-5 11443 Siskiyou Mount Shasta, MacBride Springs MacBride Springs; Mount Shasta, MacBride Springs 1524 Comment
  CAS-BOT-BC357403  Pseudognaphalium microcephalum R. E. Frenkel 1964-10-2 919 Siskiyou On Everitt Memorial Highway, 4.7 miles north of McCloud River RR crossing, near Mount Shasta 1545 Comment
  UC1409286  Pseudognaphalium thermale Frederick W. Oettinger 1969-9-4 1638 Siskiyou ne side Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area 1950 Comment
  UC896906  Pseudognaphalium thermale Alice Eastwood 1912-7-21 1297 Siskiyou Sisson Comment
  CHSC228  Pseudostellaria jamesiana M. Yoder 1941-7-12 Siskiyou Castle Lake. Comment
  CHSC96624  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
  HSC44886  Pseudotsuga menziesii var. menziesii Maralyn O'Meara 1974-5-25 398 Siskiyou Along road to Duck Lakes trail 1402 Comment
  UC60994  Pseudotsuga menziesii var. menziesii Kate Stirring 1904-9-25 Siskiyou Etna Mills Comment
  CAS-BOT-BC72685  Pteridium aquilinum H. A. Thomas; J. H. Thomas 1954-7-21 4390 Siskiyou Salmon-Trinity Mts., about 6 miles SE of Cecilville, West side of Rush Creek 1036 Comment
  JEPS82420  Pteridium aquilinum var. pubescens Gilbert Muth 1966-8-1 486 Siskiyou Marble Valley horse pasture Marble Valley; Marble Mt Wilderness Area 1792 Comment
  CDA38858  Pterospora andromedea J. R. Grisham 1962-7-26 s.n. Siskiyou Near Medicine Lake. 0 Comment
  HSC97135  Puccinellia distans L. Ahart 2005-6-9 12002 Siskiyou 3/5 mi. S of Hwy. 99/97 cutoff, 2 1/2 mi. ESE of Grenada 775 Comment
  JEPS107958  Puccinellia lemmonii Lowell Ahart, John Dittes 2005-6-9 12006 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
  CHSC88366  Puccinellia nuttalliana Jenny Marr 1993-7-1 172 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1738836  Puccinellia nuttalliana Dean W. Taylor 1987-8-9 9288 Siskiyou along Highway 161 8.3 mi W of Hwy 139, Lower Klamath Lake National Wildlife Refuge 1249 Comment
Read comments
Oct 8 2007
  JEPS44606  Purshia tridentata var. tridentata W. L. Jepson 1940-6-28 20057 Siskiyou McCloud 975 Comment
  UCD113276  Purshia tridentata var. tridentata K. M. Meyer; A. Townesmith 2007-8-2 184 Siskiyou Shasta-Trinity National Forest. 0.1 mile on Forest Service Road 43N21, 12.5 miles on Highway 97, E side of road. 1218 Comment
  HSC73238  Pyrola asarifolia subsp. asarifolia Gail Newton 1980-6-20 474 Siskiyou Near Bald Mtn. 1097 Comment
  JEPS83862  Pyrola crypta Wayne Roderick Jul 1976 Siskiyou Siskiyou Mts. vicinity Cook and Green Pass 1463 Comment
  HSC61839  Pyrola dentata Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  UCD13255  Pyrola dentata K. F. Mawdsley 1996-7-9 7 Siskiyou California, Siskiyou County, Russian Wilderness in Klamath National Forest. From Eaton-Duck Lakes Trailhead. T40N, R9W, southwest 1/4 of Section 18, Eaton Peak 7.5' topo. Elev. 5800. Comment
  SJSU2586  Pyrola picta H. L. Buckalew 1962-7-6 Siskiyou junction of Indian Cr. & W Branch Indian Cr, Siskiyou Mts 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
  UC722480  Pyrola picta C. L. Hitchcock, J. S. Martin 1939-7-8 5301 Siskiyou 15 mi n of Happy Camp (on Happy Camp-Takilma Highway); Happy Camp-Takilma Highway 914 Comment
  CAS-BOT-BC466151  Pyrola picta Wm. Bridge Cooke 1938-8-5 11456 Siskiyou Sisson Southern Trail, Mount Shasta [one specimen observed at 9000'] 1828 Comment
  HSC36657  Pyrola picta Brent Whiteley 1975-6-28 87 Siskiyou 915 Comment
  CAS-BOT-BC362269  Pyrrocoma carthamoides var. cusickii Louis C. Wheeler No date on label 2830 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. Comment
  CDA8519  Pyrrocoma racemosa var. congesta T. C. Fuller 1958-8-13 Siskiyou Scott Valley, 5 miles south of Ft. Jones. 0 Comment
  UC166599  Pyrrocoma racemosa var. paniculata Geo. D. Butler 1910-8-21 1843 Siskiyou Shasta Valley Comment
  HSC70458  Pyrrocoma racemosa var. pinetorum J. P. Smith, J. O. Sawyer 1976-9-5 8971 Siskiyou Hwy. 3, 4 mi. N of Siskyou-Trinity Co. line Comment
  CAS-BOT-BC68601  Quercus chrysolepis A. A. Heller 1921-6-25 13555 Siskiyou about the base of Black Butte near Mt. Shasta Comment
  CAS-BOT-BC68646  Quercus chrysolepis Doris K. Kildale 1929-7-20 8748 Siskiyou Elk Lick, South Fork Indian Creek Comment
  CAS-BOT-BC94663  Quercus garryana Alice Eastwood 1921-7-22 10709 Siskiyou near Dunsmuir Comment
  UC249561  Quercus garryana Joseph P. Tracy 1922-9-3 6113 Siskiyou Somes Bar Northern Coast Ranges 243 Comment
  UCD46171  Quercus garryana var. breweri P. C. Everett; E. K. Balls 1954-10-13 20288 Siskiyou Indian Creek road to Obrien, summit of pass, 21 mi. n.w. from Hwy 96 at Happy Camp, Siskiyou County. 1554 Comment
  CDA16169  Quercus garryana var. garryana G. F. Hrusa, T. D. Wilfred 1999-5-31 15068 Siskiyou Klamath Ranges; E side of I-5 at Klamath R. rest area +- 10 mi N of Yreka area 640 Comment
  HSC40047  Quercus kelloggii J. O. Sawyer 1970-7-14 2355 Siskiyou S side of Bear Mtn. 1707 Comment
  HSC68251  Quercus kelloggii J. P. Smith 1973-5-5 6434 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA623527  Quercus kelloggii J. M. Tucker 1972-8-8 4244 Siskiyou Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 miles west-southwest of Marble Valley Guard Station. 1829 Comment
  CAS-BOT-BC104352  Quercus sadleriana Doris K. Kildale 1928-8-20 6586 Siskiyou Lily Pad Lake near Hancock Lookout on trail to Marble Mt. Comment
  CAS-BOT-BC104359  Quercus sadleriana C. L. Hitchcock; J. S. Martin 1939-7-6 5221 Siskiyou on Takilma - Happy Camp Road 1676 Comment
  CAS-BOT-BC104371  Quercus sadleriana Gilbert Muth 1966-8-5 501 Siskiyou Dryish meadow, on Blacj Mountain trail, marble Mts. 1798 Comment
  SBBG115705  Quercus sadleriana G. J. Muth, J. M. Tucker 1972-8-8 1796 Siskiyou Elk Pk, Scott Bar Quad 1828 Comment
  UC163743  Quercus sadleriana Geo. D. Butler 1908-8-4 234 Siskiyou West Fork of Woolly Creek Comment
  UCR80887  Quercus sadleriana G. Fred Hrusa 1993-8-14 11400 Siskiyou Summit of Pass between Happy Camp, California and O'Brien, Oregon. Just on the California side of the state boundary 1375 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-BC104480  Quercus vacciniifolia W. R. Dudley 1893-6-20 s.n. Siskiyou Castle Lake Trail near Mt. Shasta Comment
  CAS-BOT-BC104617  Quercus vacciniifolia William Bridge Cooke 1941-9-16 16320 Siskiyou along the Castle Lake Road 1219 Comment
  CAS-BOT-BC104624  Quercus vacciniifolia A. A. Heller 1914-8-28 11728 Siskiyou East side of Mt. Eddy 1676 Comment
  CDA22070  Quercus vacciniifolia T. C. Fuller, Don Shaw 1974-9-24 20040 Siskiyou Pacific Crest Trail, summit of the Siskiyou Mountains, east of White Mountain. 0 Comment
  HSC94151  Quercus vacciniifolia J. M. Tucker 1948-8-3 1776 Siskiyou 6.7 mi below summit of Happy Camp-Waldo Rd. Comment
  UCD47422  Quercus vacciniifolia A. T. Leiser 1968-8-3 s.n. Siskiyou Castle Lake campground, Siskiyou Co. Comment
  RSA593942  Quercus vacciniifolia Louis C. Wheeler 1963-9-3 8345 Siskiyou Cyclone Gap chrome mine. Comment
  UC444423 Image available Raillardella pringlei C. A. Pringle 1882-8-19 Siskiyou Headwaters of the Sacramento River. 2286 Comment
  UC70365  Ranunculus alismifolius var. alismifolius Milo S. Baker 1898-8-1 499 Siskiyou Medicine Lake; near shore Comment
  CHSC91256  Ranunculus cymbalaria var. saximontanus Lowell Ahart; John Dittes 2005-6-9 12040 Siskiyou Meadow area along a small drainage, on the west side of a poor rock fence, about 200 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
  SEINET3160969  Ranunculus flammula var. reptans G. D. Butler 1910-7-12 1741 Siskiyou Shackleford Creek 1219 Comment
  NY214641  Ranunculus marmorarius H. P. Chandler 06 1901 1691 Siskiyou Ridges and meadows near Marble Mountain 2286.0 Comment
  SEINET12100629  Ranunculus occidentalis H. P. Chandler 1901-1 1691 Siskiyou near Marble Mountain 2286 Comment
  RSA47793  Ranunculus occidentalis var. ultramontanus Roxana S. Ferris, Laura Lorraine 1948-6-13 12 Siskiyou 2.6 miles below summit of Gazelle Mtn grade, E side. 1418 Comment
  JEPS74464  Ranunculus orthorhynchus var. orthorhynchus W. J. Ferlatte 1966-6-23 145 Siskiyou near public camp; Trinity Alps, Big Flat 1524 Comment
  SBBG2264  Ranunculus orthorhynchus var. orthorhynchus H. and M. Dearing 1939-6-5 3555 c Siskiyou E of McCloud 1066 Comment
  RSA240070  Ranunculus uncinatus var. parviflorus Frederick W. Oettinger 1969-8-9 1313 Siskiyou Along trail near Youngs cabin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1463 Comment
  RSA7844  Rhamnus californica Doris K. Kildale 1928-7-25 5916 Siskiyou Klamath River Comment
  RSA746507  Rhamnus californica subsp. occidentalis K. M. Meyer, A. Townesmith 2007-7-31 176 Siskiyou Shasta-Trinity National Forest, 6.2 mi on NF Rd. 17, off US Hwy 97. 1350 Comment
  SEINET13946380 Image available Rhamnus obtusissima A. A. Heller 1920-1 13525 Siskiyou near Black Butte north of Sisson, elev 3550 ft 1082 Comment
  SEINET4855298  Rhamnus obtusissima E. B. Copeland 1903-8-15 3833 Siskiyou Sisson. 1098 Comment
  CDA17132  Rhamnus purshiana G. F. Hrusa 2001-6-6 15846 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  OBI55460  Rhododendron occidentale David J. Keil, Kathleen Keil 1992-7-21 23543 Siskiyou Klamath NF SE of Callahan. Forest Road 40N08, 1.7 mi W of Scott Mtn road (Hwy 3)). Comment
  SJSU6476  Rhododendron occidentale R. W. Trivelpiece 1972-6-18 122 Siskiyou Douglas Cr near Klamath R c. 10 mi SW of Happy Camp 762 Comment
  CAS-BOT-BC200404  Rhododendron occidentale var. paludosum C. F. Rose 1930-5-1 s.n. Siskiyou Near Redding Comment
  CAS-BOT-BC437999  Ribes Alice Eastwood 1912-7-23 1324 Siskiyou Cantara Comment
  CAS-BOT-BC438016  Ribes A. M. Vollmer; L. Beane 1951-6-2 66 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klammath River Highway Comment
  UC165929  Ribes aureum Geo. D. Butler 1909-4-13 598 Siskiyou near Yreka Comment
  HSC100865  Ribes binominatum J. P. Smith, J. O. Sawyer, R. J. Cole 2010-8-7 13061 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2003 Comment
  HSC22487  Ribes binominatum J. O. Sawyer 1969-7-2 998 Siskiyou S facing midslope above Paynes Lake 1966 Comment
  JEPS43487  Ribes cereum W. L. Jepson 1940-6-23 20019 Siskiyou near n base Mt. Shasta (Andesite siding on S. P. Railway) 1402 Comment
  UC1096828  Ribes cereum Milo S. Baker 1957-6-16 13101 Siskiyou near Callahan (trip to Scott Mt. after turn off); Scott Mt. Comment
  UC11567  Ribes lacustre Harley P. Chandler June, 1901 1561 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  CAS-BOT-BC173383  Ribes lobbii Roxana S. Ferris; Laura Lorraine 1948-6-12 11781 Siskiyou Small tributary of Etna Creek below Mill Creek Bridge 1066 Comment
  RSA0021141  Ribes lobbii J. P. Smith 1977-5-15 9072 Siskiyou The road leading through International Paper property to the Duck Lakes trailheads. 1524 Comment
  RSA0021624  Ribes lobbii Roxana S. Ferris, Laura Lorraine 1948-6-12 11773 Siskiyou About 7 miles from Etna on forks of Salmon Road. 1819 Comment
  HSC61941  Ribes marshallii Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1555 Comment
  JEPS105050  Ribes montigenum Dean W. Taylor 1996-7-12 15791 Siskiyou Salmon Mountains; Patterson Creek drainage (about 5 air miles west of Etna); Klamath National Forest 1371 Comment
  CAS-BOT-BC217879  Ribes nevadense Elmer I. Applegate 1895-5-29 197 Siskiyou Base of Mount Shasta, near Sisson, Strawberry Valley Comment
  CAS-BOT-BC219272  Ribes nevadense John Thomas Howell 1937-7-22 13310 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  RSA0023151  Ribes nevadense A. A. Heller 1920-8-12 13513 Siskiyou 3.5 miles from Horse Camp. Comment
  CDA25560  Ribes odoratum J. R. Grisham 1965-7-29 Siskiyou F. Schultz property, Yreka. 0 Comment
  CAS-BOT-BC199986  Ribes roezlii var. cruentum John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53390 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  CAS-BOT-BC200006  Ribes roezlii var. cruentum B. Bartholomew; B. Anderson 1988-5-12 4081 Siskiyou 4 km E of Hambone Butte between Hambone Butte and the N end of White Horse Mountains on Old Two Camp Road 1140 Comment
  CDA25573  Ribes roezlii var. cruentum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2610 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  HSC99608  Ribes roezlii var. cruentum G. L. Clifton, Griswold 1979-6-28 6130 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  HSC33961  Ribes sanguineum J. P. Smith 1974-5-25 7445 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  JEPS49247  Ribes sanguineum Geo. D. Butler 1908-8-10 262 Siskiyou Shackelford Creek 1524 Comment
  CAS-BOT-BC144515  Ribes sanguineum var. sanguineum Doris K. Kildale 1929-7-20 8693 Siskiyou trail fm Elk Lick to Raspberry Lake, upper Indian Creek 1828 Comment
  CAS-BOT-BC144517  Ribes sanguineum var. sanguineum Alice Eastwood; John Thomas Howell 1937-6-26 5042 Siskiyou Salmon Mts. above Taylor Creek Comment
  CAS-BOT-BC173902  Ribes velutinum Doris K. Kildale 1929-6-25 8369 Siskiyou 6 miles north of Hornbrook on Klamath River 609 Comment
  CAS-BOT-BC173909  Ribes velutinum Alice Eastwood; John Thomas Howell 1934-4-20 1758 Siskiyou Near Yreka along Shasta River Comment
  HSC65652  Ribes velutinum J. P. Smith, J. O. Sawyer 1972-5-7 5287 Siskiyou 2.3 mi. W of Lava Beds National Monument, on road to Mtn. Dome. 1220 Comment
  UC375356  Ribes velutinum Geo. D. Butler 1908-6-20 268 Siskiyou near Yreka Comment
  CAS-BOT-BC168805  Ribes viscosissimum L. E. Smith 1913-1-1 s.n. Siskiyou Mt. Shasta Comment
  CAS-BOT-BC168807  Ribes viscosissimum Alice Eastwood 1912-7-19 1246 Siskiyou Mount Shasta Comment
  UC75457  Ribes viscosissimum Milo S. Baker 1899-7-31 Siskiyou Ash Creek, e slope of Mt. Shasta Mt. Shasta Comment
  UCD102537  Ribes viscosissimum Jack Major; M. Fleschner, R. Pemble 1966-9-4 s.n. Siskiyou East of Marble Mountain, Marble Mountains. 2042 Comment
  UC1426021  Romanzoffia sitchensis Frederick W. Oettinger 1969-7-10 957 Siskiyou precipice base due s.-s.w. Upper English Lake; Salmon Mts., High Lake Basins, English Peak vicinity, Marble 1920 Comment
  RSA237289  Rorippa curvisiliqua Frederick W. Oettinger 1969-7-29 1096 Siskiyou Dry Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  JEPS107294  Rorippa nasturtium-aquaticum Lowell Ahart, John Dittes 2005-6-10 12079 Siskiyou On the north side of the Shasta River, about 60 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
  JEPS117460  Rorippa nasturtium-aquaticum Lowell Ahart, John Dittes 2010-7-30 16960 Siskiyou 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
  CDA25127  Rorippa nasturtium-aquaticum F. D. Horn 1977-5-17 Siskiyou Highway 263, Shasta River Canyon, near Yreka. 0 Comment
  UC1871394  Rosa Barbara Ertter 2006-7-30 18749 b Siskiyou just N of Yreka on Rt 263, below roadbed in partial shade of isolated tree. 762 Comment
  POM88252  Rosa californica Geo. D. Butler 1909-9-26 973 Siskiyou Yreka Creek. Comment
  SEINET8986557  Rosa eastwoodiae Unknown 1912-1 2100 (15) Siskiyou Sisson, Siskiyou County. Comment
  CAS-BOT-BC146738  Rosa gymnocarpa Doris K. Kildale 1928-8-18 6413 Siskiyou North Fork of Salmon River at Finley Camp 609 Comment
  CAS-BOT-BC146742  Rosa gymnocarpa John Thomas Howell 1939-8-4 15036 Siskiyou Between Elk Mt. and Marble Rim, Marble Mts. Comment
  CAS-BOT-BC146749  Rosa gymnocarpa Alice Eastwood 1921-7-31 11018 Siskiyou Shasta Springs Comment
  HSC19382  Rosa gymnocarpa J. O. Sawyer 1968-6-25 347 Siskiyou Along Horse Range Creek 1646 Comment
  HSC19385  Rosa gymnocarpa J. O. Sawyer 1968-7-9 400 Siskiyou Ridge between Sugar Creek and Duck Lake drainages, Sugar Creek near Sugar Lake 2195 Comment
  HSC23474  Rosa gymnocarpa J. O. Sawyer 1968-6-18 182 Siskiyou Above S Russian Creek on W side. 1463 Comment
  RSA237791  Rosa gymnocarpa Frederick W. Oettinger 1967-7-30 223 Siskiyou Outlet stream N end of Abbotts Lake, about 200 yards down from the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CAS-BOT-BC147054  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou Near Fish Hatchery, Mt. Shasta City (Sisson) 1066 Comment
  HSC19401  Rosa pisocarpa J. O. Sawyer 1968-9-10 672 Siskiyou W shore of Raspberry Lake Comment
  HSC60785  Rosa pisocarpa Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  RSA52431  Rosa pisocarpa Dorothy Parker 1948-8-19 s.n. Siskiyou Summit of Scott Mtn. 1583 Comment
  UC454962  Rosa pisocarpa subsp. pisocarpa I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake Comment
  UC1190139  Rubus glaucifolius Ira L. Wiggins 1955-7-24 13494 Siskiyou ridge betw upper reaches of China Creek and Blind Horse Creek; btw upper reaches China and Blind Horse Creeks 1645 Comment
  UC1409344  Rubus lasiococcus Frederick W. Oettinger 1968-8-5 415 Siskiyou w end, (high lake basins in vicinity of English Peak) Charmaine Lake; Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
  RSA126292  Rubus leucodermis I. L. Wiggins 1955-7-22 13456 Siskiyou South Fork of Salmon River, 9.5 miles above Cecilville. 1067 Comment
  HSC69026  Rubus parviflorus Maralyn A. Renner 1980-7-28 2189 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  UC375391  Rubus parviflorus Geo. D. Butler 1908-7-12 1043 Siskiyou Humbug Mountain Comment
  HSC68433  Rubus ursinus Maralyn A. Renner 1980-7-4 1452 Siskiyou Clear Creek Trail, N of Trout Camp. 1037 Comment
  UC163748  Rubus ursinus Geo. D. Butler 1908-7-4 287 Siskiyou Shasta River near mouth; Shasta River near mouth Comment
  UC618725  Rubus ursinus W. Bridge Cooke 1938-6-17 11048 Siskiyou Sisson Southern Trail , Sisson Southern Trail (Mount Shasta) Comment
  POM366453  Rubus vitifolius M. B. Dunkle 1944-6-25 9027 Siskiyou Siskiyou National Forest. 1677 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
  UCD77981  Rumex acetosella Robert E. Preston 2002-7-14 1925 Siskiyou Klamath National Forest, N slope of Rainbow Mountain 1739 Comment
  CAS-BOT-BC422228  Rumex acetosella Wm. Bridge Cooke 1938-8-21 11549 Siskiyou Mount Shasta. At Horse Camp. Comment
  RSA68896  Rumex acetosella A. E. Culbertson 1943-7-12 61 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000' backwall; 14 miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mts.; 2000 ft. above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CHSC106099  Rumex conglomeratus Lowell Ahart; John Dittes 2010-7-30 16935 Siskiyou Along the west bank of the Shasta River, about 30 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
  CHSC72240  Rumex stenophyllus Vernon H. Oswald 1998-9-16 9647 Siskiyou Vista point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 8.7 mi east of Hwy. 97. 1243 Comment
  HSC17612  Rumex triangulivalvis R. C. Wunner 1965-6-22 266 Siskiyou Lava Beds NM, 1 mi. NW of Stronghold 1220 Comment
  RSA237867  Sagina decumbens subsp. occidentalis Frederick W. Oettinger 1969-9-5 1688 Siskiyou South side of David Mt., Abbotts Lake region. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  HSC79090  Sagittaria cuneata Paul Wilson 1984-8-26 350 Siskiyou Juanita Lake Reservoir, edge of lake 1555 Comment
  UC482248  Salix Mrs. H. P. Bracelin 1931-6-19 422 Siskiyou ca. 16 km. n.w. of Shasta City (n.e. side Mt. Eddy, above Metcalf ranch house); Mt. Eddy 1500 Comment
  HSC22192  Salix eastwoodiae J. O. Sawyer 1969-7-24 1476 Siskiyou NE facing seep SW of Sugar Lake 1890 Comment
  HSC22195  Salix eastwoodiae J. O. Sawyer 1969-8-4 1919 Siskiyou Headwaters of S Sugar Creek. 2043 Comment
  UC5224  Salix eastwoodiae Harley P. Chandler June, 1901 1547 Siskiyou ridges and meadows near Marble Mt.; North Coast Ranges 1828 Comment
  UC1045276  Salix exigua var. hindsiana W. Bridge Cooke 1940-6-20 15156 Siskiyou along Pacific Hwy. in Klamath River gorge Klamath R. gorge 609 Comment
  CAS-BOT-BC107654  Salix jepsonii Alice Eastwood 1921-7-24 10716 Siskiyou Castle Lake Comment
  UC482250  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 423 Siskiyou ca. 16 km. n.w. Shasta City (n.e. side Mt. Eddy, stream above Metcalf ranch house); Mt. Eddy 1350 Comment
  CAS-BOT-BC125458  Salix lasiandra var. lasiandra C. Hart Merriam 1907-9-26 s.n. Siskiyou Klamath Hot Springs, Shovel Creek Comment
  LA208779  Salix lasiolepis Louis C. Wheeler; 1934-12-16 3363 Siskiyou Siskiyou Mountains, Oak Knoll Ranger Station, Klamath River 670 Comment
  POM107144  Salix lasiolepis Geo. D. Butler 1909-9-20 1083 Siskiyou Yreka Creek. Comment
  SJSU215  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-21 469 Siskiyou 300 km below Dobbins L, N side Mt Eddy c. 21 km NW of Shasta City 1645 Comment
  CAS-BOT-BC124544  Salix lasiolepis var. lasiolepis W. R. Dudley 1899-8-8 s.n. Siskiyou Near Big Spring above Sisson Comment
  UC482243  Salix lemmonii Mrs. H. P. Bracelin 1931-6-19 421 Siskiyou ca. 16 km. n.w. of Shasta City (n.e. side Mt. Eddy, edge of stream above Metcalf ranch house); Mt. Eddy 1425 Comment
  POM106965  Salix lucida subsp. lasiandra Geo. D. Butler 1909-4-20 1077 Siskiyou Yreka Creek. Comment
  POM107047  Salix lucida subsp. lasiandra Geo. D. Butler 1910-6-1 1443 Siskiyou Yreka Creek. Comment
  POM219898  Salix lucida subsp. lasiandra H. P. Bracelin 1931-6-19 429 Siskiyou N base of Mt Eddy. About 10 km NW of Shasta City. 1200 Comment
  CAS-BOT-BC125683  Salix melanopsis L. E. Smith 1914-7-6 751 Siskiyou Cantara Comment
  CAS-BOT-BC126162  Salix scouleriana Mrs. H. P. Bracelin 1936-9-3 858 Siskiyou 11 miles N.W. from Mt. Shasta City, and about 2 miles E. of Burney Mill, N. base of Mt. Eddy 1127 Comment
  CAS-BOT-BC126169  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 444 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
  CAS-BOT-BC129036  Salix scouleriana Mrs. H. P. Bracelin 1931-6-19 435 Siskiyou North base of Mount Eddy, east of Metcalf ranch house, about 10 km. northwest of Shasta City 1080 Comment
  RSA186319  Salix scouleriana Gilbert Muth 1966-10-16 1 Siskiyou Marble Mountains 1793 Comment
  RSA238272  Salix scouleriana Frederick W. Oettinger 1969-8-1 1135 Siskiyou Above wiregrass meadow, English Lake basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1707 Comment
  UC449840  Salix scouleriana L. S. Smith 1931-6-1 17 Siskiyou near Mt. Shasta Mt. Shasta 1066 Comment
  CAS-BOT-BC175653  Salsola tragus L. E. Smith 1913-8-20 541 Siskiyou Montague 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
  UC1252124  Salvia dorrii var. dorrii Garrett Smathers 1964-7-16 Siskiyou Black Crater Trail; Lava Beds National Monument Comment
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Nov 22 2007
  JEPS12732  Sambucus mexicana W. L. Jepson July, 1894 Siskiyou Sisson Comment
  UC642562  Sambucus mexicana W. Bridge Cooke 1939-6-30 13566 Siskiyou near outlet of MacBride Springs; Mount Shasta Comment
  CAS-BOT-BC238881  Sambucus nigra subsp. caerulea John Thomas Howell 1934-7-4 12409 Siskiyou Unspecified Comment
  CAS-BOT-BC238890  Sambucus nigra subsp. caerulea Elmer I. Applegate 1935-6-5 9304 Siskiyou Capt. Jack's Stronghold, Lava Beds National Monument Comment
  HSC65077  Sambucus nigra subsp. caerulea J. P. Smith, Steve Selva 1970-6-15 3938 Siskiyou Road between Forks of Salmon and Cecilville. 579 Comment
  HSC3984  Sambucus racemosa var. racemosa Dorothy Parker 1949-8-12 364 Siskiyou Along banks of Duck Lake Creek, Salmon Mtns. 1524 Comment
  RSA123783  Sanguisorba minor G. D. Barbe 1953-7-5 97 Siskiyou 11 miles S of Etna on French Creek 1067 Comment
  HSC42978  Sanicula graveolens J. O. Sawyer, K. T. Stillman 1976-5-29 2738 Siskiyou Along Specimen Creek 915 Comment
  HSC62024  Sanicula graveolens Ruby Van Deventer 5 Jun [year missing] Siskiyou Poker Flat 1585 Comment
  POM77780  Sanicula graveolens Geo. D. Butler 1910-5-1 1258 Siskiyou Humbug Mountain 1220 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
  SEINET3240202  Santalaceae R. L. Mathiasen 2003-1 2003 -50 Siskiyou 0.7 km S of Eaton Lake, Russian Peak Wilderness 1900 Comment
  RSA211113  Saxifraga ferruginea William J. Ferlatte 1967-8-23 1106 Siskiyou Head of Kidd Creek. Trinity Alps. 2134 Comment
  JEPS47485  Saxifraga nidifica var. nidifica Geo. D. Butler 1909-4-25 781 Siskiyou at lower end of Shackleford Creek (Quartz Valley, an arm of Scott Valley); Quartz Valley, arm of Scott Valley, Shackleford Creek 853 Comment
  RSA211161  Saxifraga odontoloma William J. Ferlatte 1967-8-20 1059 Siskiyou Caribou Basin, Sawtooth Ridge. 2043 Comment
  POM298393  Saxifraga tolmiei Lester Rowntree 1939-7-31 s.n. Siskiyou Caribou Lake. Comment
  UCR52361  Saxifraga tolmiei K. Berg, Stephanie Bennett 1986-8-25 648 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little South Fork of Salmon River; above Little South Fork Lake 2287 Comment
  CHSC100002  Saxifragopsis fragarioides L. P. Janeway 2008-7-26 9506 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. 1901 Comment
  HSC2420  Saxifragopsis fragarioides William J. Ferlatte 1966-8-5 347 Siskiyou Caribou Mountain 2470 Comment
  RSA238315  Saxifragopsis fragarioides Frederick W. Oettinger 1968-8-5 403 Siskiyou Mount Hemlock Forest, Shasta Ridge, between Diamond Lake and English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  HSC74816  Schoenoplectus tabernaemontani J. P. Smith 1978-7-1 9996 Siskiyou Klamath National Forest, O'Neill Creek Campground, Klamath River 488 Comment
  JEPS63985  Scirpus americanus B. C. Goldsmith 1916-9-9 23 Siskiyou Klamath Hot Springs Comment
  RSA238937  Scirpus congdonii Frederick W. Oettinger 1969-8-22 1500 Siskiyou On the south side of Horses Hole Pond above Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  JEPS83993  Scirpus microcarpus L. R. Heckard, and J. C. Hickman 1986-7-16 6448 Siskiyou ca 5 mi n of the town Seiad Valley (Lily Pad Lake, se of Red Butte); se of Red Butte, n of Seiad Valley, Lily Pad Lake 1770 Comment
  RSA65631  Scleranthus annuus L. C. Wheeler 1935-6-15 11801 Siskiyou Greenview, Scott Valley. 884 Comment
  UCD98523  Scleranthus annuus subsp. annuus James P. Smith 1973-5-5 6525 Siskiyou Scott Bar, along the Scott River. Comment
  UC163835  Scutellaria antirrhinoides Geo. D. Butler 1910-7-9 1690 Siskiyou Shackleford Creek 1219 Comment
  JEPS94674  Scutellaria galericulata Vernon H. Oswald and Lowell Ahart 1998-7-21 9350 Siskiyou ne Weed (and se of Macdoel in area of marshes and wet meadow along Old State Highway on w side of Bray) 1417 Comment
  UC164005  Scutellaria siphocampyloides Geo. D. Butler 1908-6-29 175 Siskiyou Cherry Creek Comment
  CHSC6714  Secale cereale B. Anthony 1968-6-2 562 Siskiyou Pasture of Betty Anthony, Old Etna, 2 miles from Etna. 914 Comment
  CAS-BOT-BC63878  Sedum kiersteadiae Arthur Menzies 1962-7-21 s.n. Siskiyou Mt. Eddy. 2377 Comment
  CAS-BOT-BC64654  Sedum kiersteadiae H. E. Brown 1897-6-15 440 Siskiyou North Side Mt. Shasta, 3048 Comment
  HSC101404  Sedum lanceolatum J. P. Smith, J. O. Sawyer, R. J. Cole 2010-8-7 13072 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2005 Comment
  JEPS105142  Sedum laxum subsp. flavidum Dean W. Taylor 1993-7-30 13991 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 miles east of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
  JEPS98769  Sedum laxum subsp. flavidum Dean W. Taylor 1996-6-18 15702 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1249 Comment
  CAS-BOT-BC278769  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25641 Siskiyou FS Road 1040, 3.7-3.8 road miles (5.9 km) above junction with FS Road 10 at mouth of Carberry Creek, along Middle Fork Applegate River, 1 air mile NW of Abney Butte, Siskiyou Mountains, Klamath Range (KR) 610 Comment
  SD243329  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25640 Siskiyou Klamath Range. W side of FS Road 1040, 2.9 road miles above junction with FS 10, above Middle Fork Applegate River, 1 air mile NW of Abney Butte, Siskiyou Mountains. 675 Comment
  UC115408  Sedum obtusatum subsp. boreale Dr. E. B. Copeland 1903-8-18 3781 Siskiyou Mt. Eddy 2133 Comment
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Aug 17 2011
  UC830962  Sedum obtusatum subsp. boreale John Thomas Howell 1939-8-2 14905 Siskiyou Marble Mts. , Spirit Lake (Spirit Lake) Comment
  HSC90629  Sedum obtusatum subsp. retusum Jennifer Whipple 1977-8-6 2226 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2256 Comment
  HSC77103  Sedum oregonense K. T. Stillman 1976-7-31 353 Siskiyou Marble Mtn. Wilderness Area: Ridge N of jump off Comment
  CAS-BOT-BC61465  Sedum oregonense Gilbert Muth 1965-8-3 s.n. Siskiyou Marble Valley Comment
  CAS-BOT-BC64098  Sedum radiatum subsp. depauperatum John H. and Hazelle A. Thomas 1954-7-21 4414 Siskiyou Trinity mts. About 6 miles SE of Cecilville. West side of Rush Ck. 1158 Comment
  JEPS82493  Sedum spathulifolium Gilbert Muth 1965-8-3 158 Siskiyou Marble Valley , Marble Valley (Marble Mt. Wilderness area) 1792 Comment
  UC144331  Sedum spathulifolium A. A. Heller 1905-6-1 7932 Siskiyou between Dunsmuir and Upper Soda Spring; between Dunsmuir and Upper Soda Spring Comment
  HSC25456  Sedum stenopetalum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5651 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  RSA0035471  Sedum stenopetalum subsp. stenopetalum Peter F. Zika 2011-7-19 25648 Siskiyou Near Pacific Crest Trail, 1 air mile WNW of Copper Butte, Siskiyou Mountains, Klamath Range (KR). 1610 Comment
  RSA237787  Selaginella densa var. scopulorum Frederick W. Oettinger 1968-9-3 680 Siskiyou West of Horse Range Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area; 1905 Comment
  CAS-BOT-BC69762  Selaginella wallacei Louis C. Wheeler 1934-8-15 3158 Siskiyou East Fork Horse Creek, Siskiyou Mtns., Mt. Diablo Mer. 1524 Comment
  CAS-BOT-BC363424  Senecio aronicoides Alice Eastwood 1921-7-24 10713 Siskiyou Castle Lake Comment
  JEPS37594  Senecio aronicoides Geo. D. Butler 1909-4-9 629 Siskiyou 6.0 mi ne Yreka; Humbug Comment
  JEPS16959  Senecio fremontii var. fremontii Peter H. Raven 1956-9-4 10413 Siskiyou s slope Mount Eddy Comment
  CDA8622  Senecio hydrophilus T. C. Fuller 1958-9-12 1246 -58 Siskiyou Highway 99, 5 miles south of Yreka. 0 Comment
  UC166186  Senecio integerrimus var. exaltatus Geo. D. Butler 1910-5-1 1263 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC364040  Senecio integerrimus var. major John Thomas Howell 1937-7-25 13455 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  RSA237230  Senecio sylvaticus Frederick W. Oettinger 1967-6-28 136 Siskiyou flood plain along Salmon River near Kelly Gulch, the High Lake Basings in the vicinity of English Peak, Marble Mountain Wilderness area. 613 Comment
  CAS-BOT-BC364438  Senecio triangularis Annie M. Alexander; Louise Kellogg 1949-7-19 5809 Siskiyou Paradise Lake, Marble Mountains 1920 Comment
  CAS-BOT-BC364442  Senecio triangularis Doris K. Kildale 1928-7-2 5402 Siskiyou Salmon Summit, via Horn Creek trail Comment
  CAS-BOT-BC364449  Senecio triangularis H. A. Thomas; J. H. Thomas 1954-7-24 4501 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  SBBG25851  Senecio triangularis D. Myrick 1966-8-10 1520 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  POM5593  Senecio triangularis E. B. Copeland 1903-8-19 3811 Siskiyou Mt. Eddy. 1463 Comment
  UC179657  Sericocarpus oregonensis subsp. oregonensis A. A. Heller 1914-8-25 11700 Siskiyou near, Deetz Station Black Butte 1158 Comment
  UC34808  Sericocarpus oregonensis subsp. oregonensis Brewer 1432 Siskiyou Strawberry Hill Mt. Shasta 1066 Comment
  UC545670  Sibbaldia procumbens Louis C. Wheeler 1934-8-2 3018 Siskiyou Alex Hole Alex Hole, Alex Canyon; Siskiyou Mts., Alex Canyon 1889 Comment
  SBBG4687  Sidalcea glaucescens H. and M. Dearing 1938-6-27 2174 Siskiyou E of Bartle Comment
  SEINET11971662  Sidalcea glaucescens M. Ownbey, Meyer, F. G. 1940-1 2227 Siskiyou summit of Siskiyou Mountains, 21 mi N of Happy Camp Comment
  HSC46145  Sidalcea malviflora subsp. nana J. P. Smith, Steve Selva 1970-7-15 4356 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  HSC62278  Sidalcea malviflora subsp. nana Ruby Van Deventer 1957-7-8 Siskiyou Youngs Valley Comment
  HSC34305  Sidalcea oregana J. P. Smith, J. O. Sawyer 1973-8-14 7301 Siskiyou On trail from Campbell Lake to Cliff Lake 1829 Comment
  JEPS67251  Sidalcea oregana subsp. oregana Geo. D. Butler 1909-6-4 768 Siskiyou below Yreka; below Yreka Comment
  UC221438  Sidalcea oregana subsp. spicata Dr. Edward Palmer Jul 13 1892-Jul 20 1892 2532 Siskiyou Mount Shasta and vicinity Mount Shasta Comment
  HSC46142  Sidalcea oregana subsp. spicata J. P. Smith, Steve Selva 1970-8-7 4541 Siskiyou Jct. I-5 and Stewart Creek Rd. Comment
  CAS-BOT-BC181202  Silene campanulata subsp. glandulosa John Thomas Howell 1939-8-3 14972 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  JEPS50996  Silene grayi W. L. Jepson 1907-7-11 2882 Siskiyou summit of divide between Cottage Grove (Klamath River) and Crescent City (near Preston Peak, Monantha Rob.); Klamath Range, divide btw Klamath River and Crescent City 1828 Comment
  HSC103775  Silene hookeri subsp. hookeri M. R. Mesler 2014-6-6 1637 Siskiyou Elk Creek Rd (16N05) near Happy Camp 500 Comment
  CAS-BOT-BC75154  Sisymbrium altissimum A. A. Heller 1916-7-21 12480 Siskiyou Near Upton. 1097 Comment
  RSA120903  Sisymbrium altissimum Milo S. Baker 1957-6-15 13110 Siskiyou Roadcut just S of Weed. Comment
  RSA592540  Sisymbrium altissimum S. O. Mattoon, Ken Hansen 1978-6-16 31 Siskiyou Hwy 96; S/S of Klamath River at Woodrat Bar. 610 Comment
  CDA39479  Sisyrinchium idahoense T. C. Fuller 1962-6-13 8989 Siskiyou Toad Well, road to Medicine Lake, ca. 12 miles northeast of Bartle. 0 Comment
  SEINET3154290  Smilacina sessilifolia G. D. Butler 1910-5-15 1343 Siskiyou McAdams Creek Comment
  JEPS62160  Smilax californica W. L. Jepson July 1894 Siskiyou Sisson Comment
  NY821291  Solanum physalifolium A. A. Heller 1915-8-24 12208 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1189 Comment
  CAS-BOT-BC157044  Solanum umbelliferum A. Eastwood; J. T. Howell 1934-4-20 1772 Siskiyou Near Yreka along Shasta River Comment
  CAS-BOT-BC365580  Solidago elongata Gilbert Muth 1965-8-3 s.n. Siskiyou Meadow, Marble Valley Comment
  JEPS32371  Solidago elongata Geo. D. Butler 1908-8-10 310 Siskiyou Shackelford Creek Comment
  JEPS32420  Solidago elongata Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson region of the Upper Sacramento, Sisson Comment
  UC60956  Solidago elongata Geo. B. Grant Sept 1902 5158 Siskiyou Sisson Sisson (North California) 914 Comment
  UC88189  Solidago elongata Katharine Curran Jul 1887 Siskiyou Edgewood Comment
  SBBG8832  Solidago elongata H. and M. Dearing 1939-7-3 3809 Siskiyou Public Camp at Etna Comment
  CAS-BOT-BC339856  Solidago multiradiata John Thomas Howell 1939-8-8 15164 Siskiyou Black Mt., Marble Mts. Comment
  POM57043  Solidago multiradiata E. B. Copeland 1903-8-18 3843 Siskiyou Mt. Eddy. Comment
  CAS-BOT-BC365248  Solidago velutina subsp. californica Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Roger's Creek, Somes Bar Comment
  RSA68914  Sparganium angustifolium A. E. Culbertson 1943-8-4 44 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles southwest of Mt. Shasta on north side of a 6600 eastern spur of Trinity Mountains; 2000 above Sacramento River within 10 air miles of its headwaters to the west. 1657 Comment
  HSC16043  Sphaeralcea ambigua D. M. Thomson 1965-8-6 166 Siskiyou Lava Beds N.M., S Boundry Rd., near Tichner Rd. Comment
  UC375389  Spiraea densiflora Geo. D. Butler 1908-8-4 277 Siskiyou Head of Shackleford Creek Comment
  RSA30424  Spiraea densiflora var. splendens A. A. Heller 1916-7-22 12484 Siskiyou E side of Mt Eddy. 1677 Comment
  SEINET3157634  Spiraea douglasii G. D. Butler 1910-7-9 1708 Siskiyou Shackleford Creek 1219 Comment
  UC572795  Spiraea douglasii unknown 1937-8-6 9188 Siskiyou Bear Spring; Mt. Shasta 1524 Comment
  JEPS101600  Stachys ajugoides Dean W. Taylor 1999-8-12 17303 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley), creek crossing on logging road 1341 Comment
  JEPS84073  Stachys ajugoides var. rigida L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6367 Siskiyou ca. 1/2 mi e Red Butte Summit (ca. 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  POM69090  Stachys rigida subsp. rigida Geo. D. Butler 1908-7-7 173 Siskiyou Yreka Creek. Comment
  UCD78016  Stellaria calycantha Robert E. Preston 2001-7-20 1695 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W ne 1/4 of se 1/4 Section 14 1755 Comment
  CAS-BOT-BC391218  Stellaria longipes subsp. longipes L. E. Smith 1913-6-25 392 Siskiyou Sisson Comment
  UCR131615  Stenanthium occidentale L. C. Wheeler 1934-8-17 3181 Siskiyou Siskiyou Mtns., north side of White Mtn 1829 Comment
  CAS-BOT-BC375643  Stephanomeria lactucina Alice Eastwood 1912-7-17 1207 a Siskiyou Sisson Comment
  CAS-BOT-BC375940  Stephanomeria virgata Carl B. Wolf 1927-8-26 1040 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  HSC6234  Stephanomeria virgata R. C. Wunner 1965-9-8 511 Siskiyou California Lava Beds National Monument; 0.1 mi. on Rd. to Caldwell Ice Cave 1372 Comment
  HSC92557  Stipa occidentalis var. occidentalis Jennifer Whipple 1977-7-20 2004 Siskiyou Mt. Eddy, N slopes 2317 Comment
  CAS-BOT-BC61128  Streptanthus barbatus Alice Eastwood 1912-7-23 1329 Siskiyou Cantara. Comment
  UC455752  Streptanthus barbatus I. J. Condit 1909-8-25 Siskiyou along trail Sisson, North Fork 914 Comment
  CAS-BOT-BC87843  Streptanthus tortuosus Alice Eastwood; John Thomas Howell 1937-6-26 5038 Siskiyou Salmon Mountains above Taylor Creek. Comment
  CAS-BOT-BC87874  Streptanthus tortuosus Donald Myrick 1961-6-20 273 Siskiyou Near Mount Shasta City. 1066 Comment
  JEPS54036  Streptanthus tortuosus W. L. Jepson 1907-7-4 2818 Siskiyou Shackleford Canyon Marble Mt. region Comment
  UC212466  Streptanthus tortuosus var. orbiculatus G. B. Grant 1902-9-7 5721 Siskiyou Mt. Shasta 2438 Comment
  HSC62006  Streptopus amplexifolius Ruby Van Deventer 1959-7-10 Siskiyou Poker Flat 1585 Comment
  HSC61982  Streptopus amplexifolius Al Hobart 25 Sep [year missing] Siskiyou Preston Peak 1677 Comment
  UC30072  Streptopus amplexifolius var. americanus unknown Jan 1896 C 2 Siskiyou Siskiyou Comment
  UC1190180  Suksdorfia ranunculifolia Ira L. Wiggins 1955-7-27 13546 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  JEPS93826  Swertia albicaulis var. albicaulis Vernon H. Oswald and Lowell Ahart 1998-6-11 9186 Siskiyou ne of Weed (Shasta National Forest plantation on the w side of Highway 97 2.2 mi ne of Lake Shastina-Big Springs Road); Shasta National Forest, Highway 97 1066 Comment
  UC221723  Swertia albicaulis var. nitida H. E. Brown Jul 15 1897-Jul 31 1897 545 Siskiyou s side Mt. Shasta 1524 Comment
  CAS-BOT-BC245850  Symphoricarpos Doris K. Kildale 1928-7-2 5384 Siskiyou Salmon Summit via Horn Creek Trail 1981 Comment
  CAS-BOT-BC269611  Symphoricarpos albus var. laevigatus William A. Dayton 1913-9-14 586 Siskiyou Shasta National Forest. E. Fk of Scott River Range along Rail Creek 1341 Comment
  CAS-BOT-BC269624  Symphoricarpos albus var. laevigatus Alice Eastwood 1912-7-17 1192 Siskiyou Sisson Comment
  CHSC56532  Symphoricarpos albus var. laevigatus L. P. Janeway 1984-6-21 860 Siskiyou South side of Klamath River just east of Humbug Point. 594 Comment
  UC163750  Symphoricarpos albus var. laevigatus Geo. D. Butler 1910-8-1 1808 Siskiyou Yreka Creek Comment
  HSC4003  Symphoricarpos mollis C. B. Wolf 1927-8-27 1113 Siskiyou Klamath River at Happy Camp. Comment
  JEPS24629  Symphoricarpos mollis Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6784 Siskiyou e of and a little above MacBride Springs (s slopes of Mount Shasta); Mt. Shasta 1432 Comment
  UC61064  Symphoricarpos mollis W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sisson; Mount Shasta Comment
  CAS-BOT-BC269708  Symphoricarpos mollis W. R. Dudley 1901-8-24 s.n. Siskiyou Four Mile [Fourmile] Creek Trail, Salmon Mts. Comment
  HSC91427  Symphoricarpos rotundifolius var. rotundifolius Jennifer Whipple 1977-7-20 2009 Siskiyou Near Durney Lake. 2073 Comment
  HSC5077  Symphyotrichum bracteolatum Geo. D. Butler 1910-8-13 1828 Siskiyou Quartz Valley Comment
  CAS-BOT-BC97617  Symphyotrichum campestre Geo. D. Butler 1910-9-11 1870 Siskiyou Dampland Edgewood Comment
  CAS-BOT-BC97882  Symphyotrichum eatonii Laura M. Lathrop 1903-7-20 s.n. Siskiyou Shasta Retreat Comment
  HSC61494  Symphyotrichum foliaceum Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  CAS-BOT-BC97946  Symphyotrichum frondosum Louis C. Wheeler 1934-8-20 3194 Siskiyou West Fork Beaver Creek, Siskiyou Mts. 1219 Comment
  UC609325  Symphyotrichum hendersonii Eleanor Burks Hart 1938-8-16 898 Siskiyou west slope of Lower Wright Lake Lower Wright Lake 2072 Comment
  CAS-BOT-BC98438  Symphyotrichum spathulatum Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  UC223701  Symphyotrichum spathulatum Elmer I. Applegate 1923-8-19 3896 Siskiyou Medicine Lake Comment
  CAS-BOT-BC221959  Taeniatherum caput-medusae John Thomas Howell 1952-6-15 28365 Siskiyou Just east of Montague Comment
  UCD86207  Taeniatherum caput-medusae H. S. Yates 1936-6-21 5808 Siskiyou Yreka. 1/2 mile NE of Hilt. California Forest and Range Experiment Station. 1036 Comment
  CDA7682  Taraxacum officinale G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2611 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  CHSC32898  Taraxia tanacetifolia J. P. Smith; Steve Selva 1970-8-9 4586 Siskiyou Roadside by Grass Lake. Comment
  UC1400324  Tauschia howellii Frederick W. Oettinger 1968-8-4 394 Siskiyou gap where the English Peak-Hancock Lake trail crosses Crapo Peak Ridge (High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, Salmon Mountains); Marble Mountain Wilderness Area, Salmon Mountains 2194 Comment
  CAS-BOT-BC81346  Taxus brevifolia Nora Pettibone 1894-8-8 s.n. Siskiyou Upper Soda Springs Comment
  CAS-BOT-BC81351  Taxus brevifolia Louis C. Wheeler 1934-8-14 3138 Siskiyou Klamath National Forest, W. end White Mt. 1828 Comment
  HSC32595  Taxus brevifolia Steven Lagos 1974-5-26 86 Siskiyou Duck Lake Creek drainage, Bulk Collection # 60 1463 Comment
  HSC2237  Tetradymia canescens Geo. D. Butler 1909-7-1 955 Siskiyou Klamath Hills Comment
  JEPS80483  Tetradymia canescens W. B. and V. G. Cooke 1967-8-9 38668 Siskiyou turnout above Whitney Creek (along U.S. Hwy 97, n side of Mt. Shasta); Mt. Shasta 1237 Comment
  RSA94943  Tetradymia canescens F. W. Peirson 1923-7-19 3928 Siskiyou Whitney Creek, Mt. Shasta. Comment
  JEPS80527  Thalictrum fendleri var. polycarpum Gilbert Muth 1966-7-17 408 M Siskiyou trail to Lookout Marble Mt. Wilderness Area 1889 Comment
  CAS-BOT-BC88070  Thelypodium brachycarpum L. E. Smith 1913-5-25 279 Siskiyou Gazelle. Comment
  POM148439  Thelypodium brachycarpum J. B. Feudge 1927-7-24 1670 Siskiyou Trail to Mt Eddy from Sisson. 1677 Comment
  UC144226  Thelypodium brachycarpum A. A. Heller 1905-6-9 8011 Siskiyou Montague Comment
  CAS-BOT-BC88115  Thelypodium laciniatum L. E. Smith 1914-4-25 643 Siskiyou Yreka. Comment
  UC1094392  Thlaspi montanum var. montanum Rimo C. Bacigalupi with Galen Smith 1957-6-26 5951 Siskiyou above s end Gumboot Lake (ca 6 mi due s Mt. Eddy, head of South Fork Sacramento River, Gumboot Lake); head of South Fork Sacramento River, Gumboot Lake 1859 Comment
  CDA25267  Thysanocarpus curvipes F. D. Horn 1978-4-9 Siskiyou Horn Ranch near Etna. 0 Comment
  UCR222504  Tolmiea menziesii R. F. Thorne 1969-8-2 63396 Siskiyou Klamath Ranges Region; Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, trail to English Peak [along N fork of Salmon River] 1159 Comment
  HSC72671  Tonella tenella J. P. Smith 1976-5-5 8697 Siskiyou Road between Forks of Salmon and Somes Bar 366 Comment
  CAS-BOT-BC169251  Toxicodendron diversilobum Ellsworth Bethel 1923-4-16 s.n. Siskiyou Redding Comment
  CAS-BOT-BC169255  Toxicodendron diversilobum Alice Eastwood 1922-10-18 11529 Siskiyou Shasta Sprnigs Comment
  CAS-BOT-BC169257  Toxicodendron diversilobum L. R. Abrams 1922-8-6 9900 Siskiyou Klamath River 6 mi. below Hornbrook C. Comment
  CHSC2326  Toxicoscordion venenosum var. venenosum 1936-6-30 Siskiyou Mt. Shasta City. 1097 Comment
  HSC62273  Triantha occidentalis subsp. occidentalis Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  CHSC71487  Trichostema oblongum Vernon H. Oswald; Lowell Ahart 1998-7-21 9358 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
  JEPS24010  Trichostema simulatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6871 Siskiyou 4.7 mi below (N of) Scott Mountain Road summit (along road just S of and above Callahan) 1127 Comment
  OBI55486  Trichostema simulatum David J. Keil, Kathleen Keil 1992-7-21 23521 Siskiyou Klamath Natl Forest SE of Callahan on hwy 3, 2.1 I NW of Scott Mtn summit Comment
  HSC68304  Trientalis latifolia Maralyn A. Renner 1980-7-4 1422 Siskiyou Clear Creek Trail, N of Trout Camp. 1067 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
  RSA801990  Trientalis latifolia Leo Miller 1938-07 s.n. Siskiyou Siskiyou Mts. 915 Comment
  JEPS75368  Trifolium cyathiferum Geo. D. Butler 1909-6-20 919 Siskiyou near Yreka (McNutty's field) Comment
  POM28069  Trifolium cyathiferum Geo. D. Butler 1910-6-3 1473 Siskiyou Quartz Valley. Comment
  HSC37535  Trifolium eriocephalum J. P. Smith 1974-5-26 7573 Siskiyou Along FS Rd. 47N03 1524 Comment
  POM28034  Trifolium eriocephalum subsp. eriocephalum Geo. D. Butler 1909-6-13 978 Siskiyou Moffitt Creek Comment
  POM349496  Trifolium eriocephalum subsp. eriocephalum M. B. Dunkle 1944-7-15 9104 Siskiyou Siskiyou National Park Comment
  JEPS81659  Trifolium eriocephalum var. eriocephalum L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2295 Siskiyou 0.8 mi s Bray junction on U. S. 97 (Murphy Wells) 1493 Comment
  HSC77108  Trifolium howellii K. T. Stillman 1976-7-31 355 Siskiyou Marble Mountain Wilderness Area, Ridge N of Jump off, 1/2 mi. S of Paradise Lake Comment
  UC163857  Trifolium hybridum Geo. D. Butler 1908-7-8 387 Siskiyou near Yreka Comment
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  RSA237885  Trifolium hybridum Frederick W. Oettinger 1969-8-1 1130 Siskiyou Wiregrass Meadow near English Lake. the High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1707 Comment
  JEPS66047  Trifolium kingii var. productum Geo. D. Butler 1908-8-9 377 Siskiyou summit above Marbel Valley 1828 Comment
  HSC58923  Trifolium longipes Marvin Butler 1971-7-6 20 Siskiyou Near El Capitan, close to Cave Junction 1 Comment
  HSC82379  Trifolium longipes Thomas W. Nelson, J. P. Smith, Jane P. Nelson 1978-7-24 4532 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  JEPS118116  Trifolium pratense Dean W. Taylor 2004-7-19 19190 Siskiyou Weed, wet meadow just east of town limits along Boles Creek 1051 Comment
  JEPS48904  Trifolium wormskioldii Geo. D. Butler 1908-7-2 381 Siskiyou near Yreka (Butler's Ranch) Comment
  CAS-BOT-BC520838  Trillium albidum Geo. D. Butler 1910-4-3 1168 Siskiyou Humbug Creek Comment
  SBBG1080  Trillium ovatum K. K. Muller 1954-6-23 646 Siskiyou summit ca. 3.5 mi S of Oregon line on road to Happy Camp, Siskiyou Mtns Comment
  HSC36716  Trillium ovatum Brent Whitely 1975-7-1 116 Siskiyou 671 Comment
  RSA760934  Trillium ovatum subsp. oettingeri Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63359 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  HSC27037  Trisetum canescens J. P. Smith, J. O. Sawyer 1972-9-14 5814 Siskiyou Trail to Little Duck Lake 1829 Comment
  UC196952  Trisetum canescens Geo. D. Butler 1910-7-8 1661 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC200269  Trisetum spicatum Gilbert Muth 1966-8-3 491 Siskiyou Marble Valley meadow, Marble Mts. 1792 Comment
  CAS-BOT-BC200270  Trisetum spicatum Beecher Crampton 1956-8-22 3854 Siskiyou Panther Meadow, south slope of Mt Shasta 2316 Comment
  HSC76956  Trisetum spicatum K. T. Stillman 1976-9-9 477 Siskiyou Marble Mtn. Wilderness Area, N, NE and E side of Black Mtn. Comment
  RSA14319  Trisetum wolfii Elmer I. Applegate 1923-8-17 3835 Siskiyou Medicine Lake Comment
  JEPS29126  Triteleia crocea Lauramay T. Dempster 1961-7-1 1836 Siskiyou just n Horse Creek Drainage (s slope just e White Mountain, just s Oregon boundary); Siskiyou Mountains, Horse Creek drainage, White Mt. 1889 Comment
  UC1265674  Triteleia crocea Rolf Y. Berg 1980-6-25 Siskiyou on road from Seiad Valley to Cook and Green Pass; Klamath River Region, Horsetail Falls Comment
  SJSU6067  Triteleia crocea R. W. Trivelpiece 1971-6-6 10 Siskiyou E Fork Horse Creek between White Mt & White Cloud Mt c. 5 mi S of Oregon border 944 Comment
  UC454064  Triteleia crocea var. modesta I. J. Condit 1911-7-27 Siskiyou Castle Lake 1981 Comment
  SBBG30572  Triteleia hyacinthina D. Myrick 1968-6-27 2047 Siskiyou near Lake Josephine above Carter's Ranch, 5 mi S of Big Flat, head of Coffee Crk; Trinity Alps 1828 Comment
  POM110211  Triteleia hyacinthina Geo D. Butler 1908-8-4 108 Siskiyou Head of Shackleford Creek. Comment
  UCD77352  Turritis glabra Robert E. Preston 2001-7-20 1698 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mountain, N of Hemlock Lake. 1676 Comment
  CAS-BOT-BC74099  Turritis glabra Wm. Bridge Cooke 1938-7-15 11200 Siskiyou Mount Shasta. Bear Springs. Between the Bear Springs creeks. 1524 Comment
  UC1240171  Typha latifolia Verne Grant and Irving Schneider 1947-8-25 8284 Siskiyou near road to Lava Beds w side Tule Lake; w side of Tule Lake near road to Lava Beds Comment
  RSA37425  Umbellularia californica Marion Ownbey, Fred G. Meyer 1940-7-8 2224 Siskiyou Dry hillside along Indian Creek. 12 miles above Happy Camp. Comment
  CHSC105281  Urtica dioica subsp. gracilis Lowell Ahart; John Dittes 2010-7-30 16961 Siskiyou On the south bank of the Shasta River, about 1 yard 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
  JEPS19728  Utricularia macrorhiza Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-27 5975 Siskiyou 20 mi. n.e. Weed (along causeway of U.S. Hwy. 97 between Weed and Klamath Falls, Grass Lake); Grass Lake 1544 Comment
  CHSC608  Vaccinium cespitosum M. Yoder 1941-6-28 Siskiyou Castle Lake. 2133 Comment
  HSC19109  Vaccinium cespitosum J. O. Sawyer 1969-8-4 1813 Siskiyou Above Sugar Lake 2134 Comment
  POM77558  Vaccinium cespitosum Geo D. Butler 1910-7-11 1740 Siskiyou Upper Campbell Lake. 1677 Comment
  CAS-BOT-BC199230  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  UC562352  Vaccinium membranaceum Joseph P. Tracy 1935-8-1 14419 Siskiyou 3 mi e of Salmon Summit (Head of Knownothing Creek); Knownothing Creek 1767 Comment
  HSC27969  Vaccinium parvifolium Carl W. Mize 1972-9-24 129 Siskiyou 732 Comment
  HSC69742  Vaccinium parvifolium Maralyn A. Renner 1980-6-26 1274 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  HSC19341  Vaccinium scoparium J. O. Sawyer 1969-7-9 1277 Siskiyou NE facing slope above S Sugar Lake 2256 Comment
  RSA238863  Vaccinium uliginosum subsp. occidentale Frederick W. Oettinger 1969-8-1 1133 Siskiyou Side of Wiregrass Meadow and bordering on the English Lake outlet brook. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  CHSC1995  Valeriana californica V. Holt 1932-7-10 Siskiyou Mt. Eddy. 1524 Comment
  UC7408791  Valeriana sitchensis subsp. sitchensis Frederick W. Oettinger 1968-8-6 425 Siskiyou along stream at se corner of Hancock Lake (High Lake Basins in vicinity of English Peak); Salmon Mountains