Search Results — 2000 specimen records retrieved (1388 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC69269  Abies X shastensis John Palmer 1980-7-24 640 Siskiyou Dillon Divide 1707 Comment
  HSC4981  Abies amabilis J. O. Sawyer 1968-7-22 525 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  UC1138215  Abies amabilis Dorothy Parker 1957-7-20 Siskiyou Salmon-Marble Mountains 1981 Comment
  RSA237419  Abies amabilis Frederick W. Oettinger 1968-9-5 711 Siskiyou At south end of Diamond Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2072 Comment
  UC401379  Abies concolor Geo. D. Butler 1908-8-3 228 Siskiyou Log Lake Shackleford Creek, Log Lake Comment
  UCD134144  Abies concolor Robert E. Preston 2002-7-12 1912 a Siskiyou Klamath National Forest, S slope of Rainbow Mountain. 1893 Comment
  CAS-BOT-BC78022  Abies grandis M. P. Anderson 1902-2-16 s.n. Siskiyou Ridge between Seiad and Hone Creek Comment
  HSC5001  Abies lasiocarpa J. O. Sawyer 1969-8-2 1696 Siskiyou Slopes W of Little Duck Lake 2226 Comment
  HSC5008  Abies lasiocarpa J. O. Sawyer 1968-10-8 754 Siskiyou W of Little Duck Lake 1936 Comment
  JEPS88680  Abies lasiocarpa var. lasiocarpa Donald V. Hemphill 1971-8-16 Siskiyou Deep Lake-Second Valley Trail Klamath National Forest, Scott Bar. Quad. 2194 Comment
  HSC41957  Abies magnifica Sue Sweet 1977-5-21 66 Siskiyou Off Road 8 on the Sugar Creek Trail along Sugar Creek 1585 Comment
  HSC69431  Abies magnifica Maralyn A. Renner 1980-7-16 1783 Siskiyou Hancock Lake inlet 1951 Comment
  LA202806  Acer circinatum Wm. Bridge Cooke; 1940-7-12 15309 Siskiyou Box Canyon, Near the Sacramento River and near Mount Shasta City 914 Comment
  CAS-BOT-BC331020  Acer glabrum var. glabrum Dorothy Parker 1950-6-4 447 Siskiyou Salmon Mountain 1920 Comment
  CAS-BOT-BC331048  Acer glabrum var. glabrum Wm. Bridge Cooke 1938-6-17 11003 Siskiyou Mount Shasta; Sisson Southern Trail. 1981 Comment
  UC1408872  Acer glabrum var. glabrum Frederick W. Oettinger 1968-8-7 435 Siskiyou e side Hancock Lake (High Lake Basins in the vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area, western Siskiyou County); Marble Mountain Wilderness Area, Salmon Mountains 1935 Comment
  CAS-BOT-BC332790  Acer macrophyllum A. A. Heller 1920-8-11 13506 Siskiyou Metcalf's ranch, NE base of Mt. Eddy 1158 Comment
  CAS-BOT-BC30439  Achillea millefolium A. A. Heller 1915-7-18 12127 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UC1045301  Achillea millefolium W. Bridge Cooke 1904-7-7 15480 Siskiyou along west rim near upper limits of Hudsonian Zone Mud Creek Canyon; Mount Shasta 2743 Comment
Read comments
Oct 9 2007
  CAS-BOT-BC18870  Achillea millefolium William Bridge Cooke 1938-6-24 11067 a Siskiyou Mount Shasta, MacBride Springs (also at Bear Springs) 1524 Comment
  CAS-BOT-BC30444  Achillea millefolium D. M. Traugh 1933-5-25 62 Siskiyou Klamath N.F. 609 Comment
  HSC44593  Achillea millefolium Laura Witherspoon 1977-7-30 Siskiyou Edge of Flint Valley 1341 Comment
  NY149875  Achillea pacifica A. A. Heller 1905-6-19 8067 Siskiyou Grenada Comment
  CAS-BOT-BC105075  Achnatherum nelsonii subsp. dorei R. C. Wenk 2008-7-24 917 Siskiyou SW side of Mount Shasta, growing by side of road, Everitt Memorial Highway 1676 Comment
  CAS-BOT-BC216923  Achnatherum occidentale John Thomas Howell 1934-7-4 12390 Siskiyou SE corner of the county Comment
  RSA238978  Achnatherum occidentale subsp. californicum Frederick W. Oettinger, Robert F. Thorne 1969-8-5 1187 Siskiyou NW side of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC1133081  Achnatherum occidentale subsp. californicum H. A. Jensen 1933-8-24 343 Siskiyou Mouth of Gravel Creek Shasta National Forest, Dunsmuir Quadrangle Comment
  UCD51050  Achnatherum occidentale subsp. californicum Elizabeth Wilson 1940-7-14 s.n. Siskiyou Shasta Springs. Comment
  RSA603758  Achnatherum occidentale subsp. occidentale L. C. Wheeler 1935-6-27 3606 Siskiyou Head Etna Creek, Marble Mts. 1799 Comment
  UCD51181  Achnatherum occidentale subsp. pubescens Mr. Roseman 1913-1 7 Siskiyou Butte Valley. Comment
  RSA716055  Achnatherum thurberianum L. Ahart, John Dittes 2005-6-9 12018 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  JEPS36720  Achyrachaena mollis Geo. D. Butler 1909-5-1 666 Siskiyou Block 5 Yreka Comment
  UC166598  Achyrachaena mollis Geo. D. Butler 1909-5-4 666 Siskiyou dryland near Yreka Comment
  JEPS80543  Aconitum columbianum Gilbert Muth 1965-8-16 220 Siskiyou Marble Mt. Wilderness Area, Black Mt. 1792 Comment
  CAS-BOT-BC391519  Aconitum columbianum subsp. columbianum Alice Eastwood 1912-8-30 1952 Siskiyou Mount Eddy Comment
  CAS-BOT-BC391536  Aconitum columbianum subsp. columbianum A. A. Heller 1914-8-28 11724 Siskiyou East side of Mt. Eddy 1310 Comment
  HSC69335  Aconitum columbianum subsp. columbianum John Palmer 1980-8-13 771 Siskiyou Dead Cow Creek, near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  RSA183668  Aconitum columbianum var. columbianum Gilbert Muth 1965-8-16 220 Siskiyou Marble Valley, Marble Mts. Comment
  SD53342  Aconogonon davisiae Darley F. Howe 1962-8-6 3407 Siskiyou Mt. Shasta 2438 Comment
  HSC78418  Aconogonon davisiae L. P. Janeway 1983-7-31 480 Siskiyou Poker Flat, E portion of meadow. 1524 Comment
  CAS-BOT-BC418820  Aconogonon phytolaccifolium Gilbert Muth 1966-7-17 406 Siskiyou Trail to Lookout, Marble Mts. 1859 Comment
  HSC30406  Aconogonon phytolaccifolium Frederick W. Oettinger 1968-8-7 437 Siskiyou Marble Mtn. Wilderness Area, E side of Hancock Lake 1890 Comment
  UC618887  Actaea rubra W. Bridge Cooke 1938-8-19 11530 Siskiyou Big Bear Springs meadow and Sisson Southern Trail Spring (6500 ft) Mt. Shasta Comment
  HSC98137  Adenocaulon bicolor J. O. Sawyer 1969-8-5 1963 Siskiyou Alluvial terrace along South Sugar Creek 1692 Comment
  HSC68430  Adiantum aleuticum Maralyn A. Renner 1980-7-4 1446 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  UC1593365  Adiantum capillus-veneris Alan Smith with Chris Richards, C. Don Macneill, Janet Sowers, Bob Martin, Pat Toops, and Barney 1992-6-6 2543 Siskiyou Fossil Cave; Lava Beds National Monument 1280 Comment
Read comments
May 30 2013
  CAS-BOT-BC110722  Aegilops cylindrica T. C. Fuller 1962-6-12 8970 Siskiyou Little Shasta Road, 1 mile east of Montague. Comment
  RSA0003895  Agastache parvifolia Alice Eastwood, J. T. Howell 1940-6-14 8266 Siskiyou Lava Beds National Mon. near Schonchin Butte Comment
  HSC4988  Agastache urticifolia J. O. Sawyer 1968-7-23 604 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake, Brown's Meadow 1829 Comment
  CHSC286  Ageratina occidentalis K. Jaekel 1939-7-14 Siskiyou Mt. Shasta. 1767 Comment
  HSC22431  Agoseris aurantiaca J. O. Sawyer 1969-7-18 1432 Siskiyou SW facing slope above Deacon Lee Trail 2195 Comment
  HSC78375  Agoseris aurantiaca L. P. Janeway 1983-9-11 658 Siskiyou Poker Flat 1524 Comment
  CDA316  Agoseris grandiflora T. C. Fuller 1965-6-1 13587 Siskiyou West side of Highway 99 to Grenada, 4 miles south of Yreka. 0 Comment
  UC1222759  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1949-9-15 18555 Siskiyou 5 mi ne, 1.5 mi up Taylor Creek from mouth (branch of E Fk of S Fk Salmon R) Cecilville; S. Fork Salmon River, Taylor Creek 914 Comment
  UC163890  Agoseris grandiflora var. grandiflora Geo. D. Butler 1909-6-4 761 Siskiyou Yreka Comment
  CAS-BOT-BC15383  Agoseris grandiflora var. grandiflora Alice Eastwood; John Thomas Howell 1937-6-26 5064 Siskiyou Near Fork of Salmon River Comment
  UC618848  Agoseris heterophylla var. heterophylla W. Bridge Cooke 1938-6-24 11069 Siskiyou largely in an old wagon rd, also in the surrounding meadow and chaparral MacBride Spring; Mount Shasta 1524 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-BC126983  Agrostis exarata Geo. D. Butler 1910-6-21 1595 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC126998  Agrostis exarata John Thomas Howell 1939-8-10 15250 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  HSC77085  Agrostis exarata K. T. Stillman 1976-7-30 330 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  UCD52094  Agrostis exarata Beecher Crampton 1956-8-21 3804 Siskiyou slope above Gumboot Lake, headwater of the south fork of the Sacramento River. 1920 Comment
  RSA12484  Agrostis idahoensis C. B. Wolf 1934-7-4 5953 Siskiyou 6.8 miles from Dry Lake lookout on road to Horse Creek, Siskiyou Mountains. 1829 Comment
  SEINET7594039 Image available Agrostis idahoensis F. W. Oettinger 1968-9-7 765 Siskiyou W. Siskiyou County, Tobacco Lake, Salmon Mountains 1890 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
  UCD53186  Agrostis pallens A. H. Murphy 1955-7-29 55 P Siskiyou Clear Lake, Marble Mountains, Klamath National Forest. 1798 Comment
  UCD53188  Agrostis pallens A. H. Murphy 1955-7-28 55 I Siskiyou Hancock Lake, Marble Mountains, Klamath National Forest. 1889 Comment
  UCD53259  Agrostis pallens R. Tofsrud 1948-8-1 s.n. Siskiyou Few mi. N. of Happy Camp. Comment
  HSC30449  Agrostis scabra Frederick W. Oettinger 1969-9-4 1637 Siskiyou Marble Mtn. Wilderness Area, near water at outlet to Hancock Lake. 1890 Comment
  CAS-BOT-BC138479  Agrostis variabilis Wm. Bridge Cooke 1938-8-18 11487 Siskiyou Mount Shasta. Horse Camp Slopes. 2514 Comment
  HSC22463  Agrostis variabilis J. O. Sawyer 1969-8-4 1895 Siskiyou Above S Sugar Lake 2043 Comment
  HSC91585  Agrostis variabilis Jennifer Whipple 1978-10-6 2427 Siskiyou Dale Creek drainage on N face of Mount Eddy. 2195 Comment
  UC814485  Alisma plantago-aquatica Alice Eastwood 1912-7-17 1195 Siskiyou Sisson Comment
  UC1733720  Allium Frank Gould, Kay H. Beach 1940-5-15 1235 Siskiyou upper Bull Meadows Comment
  CAS-BOT-BC459429  Allium acuminatum Lillian Mott 1976-7-4 20 LM76 Siskiyou Cook and Green Pass Road north of Seiad Valley at waterfall 1463 Comment
  CAS-BOT-BC462376  Allium amplectens Margaret M. Hanna 1958-6-20 s.n. Siskiyou Along highway - 6 miles south of Dunsmuir Comment
  CAS-BOT-BC462991  Allium bolanderi John Thomas Howell 1980-5-20 53560 Siskiyou Lightning Grade Road between Oro Fino and Fort Jones 868 Comment
  CAS-BOT-BC462996  Allium bolanderi Volney Rattan 1903-1-1 s.n. Siskiyou Klamath Comment
  SBBG30569  Allium campanulatum D. Myrick 1968-6-27 2049 Siskiyou Preacher's Peak above Big Flat, head of Coffee Crk 2133 Comment
  CAS-BOT-BC469235  Allium falcifolium A. A. Heller 1916-7-22 12491 Siskiyou East side of Mt. Eddy Comment
  HSC82586  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 1979-5-26 4715 Siskiyou Along SR 3 N of Scott Mtn. Summit at junction with USFS Rd. 40N03 1524 Comment
  JEPS82242  Allium siskiyouense Roger Raiche 1983-8-14 30611 Siskiyou near summit of road to Mt. Eddy or Dead Fall Meadow (Park Creek Road of forest road 42N17) 2133 Comment
  JEPS61510  Allium validum George D. Butler 1908-8-3 109 Siskiyou near Log Lake; Shackleford Creek 1524 Comment
  SEINET8193676  Allium validum G. D. Butler 1910-6-19 1577 Siskiyou Goosenest foothills. 1524 Comment
  JEPS57164  Allium validum L. R. Heckard 1967-8-12 1657 Siskiyou along logging road heading s Stewart Springs (ca. 10 mi from U.S. Highway 99 n of Weed) 1950 Comment
  SEINET3151668  Allocarya californica G. D. Butler 1910-5-29 1424 Siskiyou Damp place near Yuka. Comment
  UC1037457  Allotropa virgata Douglas Barbe 1955-7-28 304 Siskiyou Eastern side of hill about 1/2 mile west of Scott Mtn. Forest Camp, Scott Mts. near the Trinity - Siskiyou County line 1645 Comment
  JEPS58663  Alnus incana subsp. tenuifolia Geo. D. Butler 1908-8-8 12 Siskiyou West Fork of Wooly Creek; lake at head 1676 Comment
  UCD109994  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou In vicinity of cabin, lower Red Rock Valley, Marble Mountain Wilderness Area. 1493 Comment
  UC127628  Alnus rhombifolia Mrs. Kate J. Stirring 1905-2-1 Siskiyou Etna Mills Comment
  CAS-BOT-BC169645  Alnus rhombifolia W. R. Dudley 1899-8-23 s.n. Siskiyou East Fork of Scott Creek Comment
  HSC45042  Alnus viridis subsp. sinuata J. O. Sawyer 1978-6-20 3274 Siskiyou Marble Mtn. Wilderness Area, Hamilton Camp 1829 Comment
  POM95264  Alyssum alyssoides Geo. D. Butler 1910-5-7 1304 Siskiyou Yreka. Comment
  UC163667  Amaranthus californicus Geo. D. Butler 1908-8-14 64 Siskiyou Yreka Comment
  HSC43150  Amaranthus powellii Ken Stillman 1976-8-24 426 Siskiyou Along Klamath River at Williams Point. 366 Comment
  CDA38754  Ambrosia trifida Rhonda Posey, Kay Dye 2012-8-29 s.n. Siskiyou Mt. Shasta (City); 1524 Frederick St. 0 Comment
  RSA756942  Amelanchier alnifolia var. pumila Robert F. Thorne 1969-8-2 63341 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 1159 Comment
  HSC29353  Amelanchier pallida Frederick W. Oettinger 1969-8-13 1358 Siskiyou Marble Mtn. Wilderness Area, below Halfway Spring, trail from English Lake to Diamond Lake 1829 Comment
  RSA237667  Amelanchier pumila Frederick W. Oettinger 1968-8-2 362 Siskiyou Meadow S of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  CAS-BOT-BC136891  Amelanchier utahensis A. A. Heller 1905-6-9 8003 Siskiyou On the hills just east of Yreka Comment
  CAS-BOT-BC136909  Amelanchier utahensis Doris K. Kildale 1928-8-18 6412 Siskiyou North Fork Salmon River at Finley Camp Comment
  CAS-BOT-BC136912  Amelanchier utahensis Doris K. Kildale 1929-7-20 8635 Siskiyou Trail up South Fork Indian Creek to Elk Lick Comment
  JEPS44697  Amelanchier utahensis W. I. Follett 1936-5-25 Siskiyou 11.6 mi sw Gazelle (upper canyon of Willow Creek) 1524 Comment
  HSC3533  Amsinckia tessellata var. tessellata D. M. Thomson 1965-7-17 149 Siskiyou Lava Beds National Monument, N boundary road by Canbys Cross Comment
  CAS-BOT-BC45211  Anaphalis margaritacea A. A. Heller 1915-8-26 12247 Siskiyou Wagon Creek at the foot of Mt. Eddy 1127 Comment
  HSC29440  Anemone deltoidea Frederick W. Oettinger 1968-8-6 427 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  CAS-BOT-BC391799  Anemone deltoidea Gilbert Muth 1965-8-3 s.n. Siskiyou Pothole in Marble, Marble Valley 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
  HSC44  Anemone drummondii William J. Ferlatte 1966-8-4 317 Siskiyou Above Yellow Rose Mine 2134 Comment
  POM365636  Anemone multifida M. B. Dunkle 1945-1 9312 Siskiyou Klamath National Forest; Marble Mountains, Black Marble ridge [?]. Comment
  JEPS107478  Anemopsis californica Lowell Ahart, John Dittes 2005-6-9 12024 Siskiyou Meadow area along a small drainage, on the west side of a poor rock fence, about 280 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
  RSA470339  Angelica arguta var. arguta M. B. Dunkle 1945-1 9339 Siskiyou Klamath National Forest; Marble Mountains, Black Marble ridge [?]. Comment
  HSC419  Angelica tomentosa William J. Ferlatte 1966-8-3 244 Siskiyou Big Flat 1524 Comment
  HSC94197  Anisocarpus madioides G. Fred Hrusa 1998-7-5 14694 Siskiyou Cedar Camp Rd., approx. 5 mi. E of Weitchpec on Hwy. 96. N side of Hwy Comment
  HSC28214  Anisocarpus madioides Carl W. Mize 1972-6-23 97 Siskiyou Along trail down from Camp Three 427 Comment
  POM34162  Antennaria argentea Geo. D. Butler 1909-5-31 756 Siskiyou Humbug Creek. Comment
  JEPS13375  Antennaria geyeri Duncan Dunning 1921-7-16 Siskiyou nw of Hambone; Toad Mountain Comment
  UC891586  Antennaria geyeri Alice Eastwood 1912-7-15 1061 a Siskiyou McCloud Comment
  RSA93675  Antennaria geyeri F. W. Peirson 1923-7-20 3893 Siskiyou 2 miles below camp on Whitney Creek, Mt. Shasta. Comment
  HSC69160  Antennaria howellii Maralyn A. Renner 1980-8-4 2208 Siskiyou Flint Valley 1390 Comment
  JEPS20904  Antennaria media Willis L. Jepson 1894-8-4 Siskiyou Horse Camp Mt. Shasta Comment
Read comments
Jan 23 2011
  UC618846  Antennaria media unknown 1938-8-18 11473 Siskiyou below, around the Water Supply Spring Horse Camp; Mount Shasta 2468 Comment
  RSA238725  Antennaria media Frederick W. Oettinger 1969-7-14 1016 Siskiyou Between Charmaine Lake and Abbot's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  CAS-BOT-BC79904  Antennaria microphylla Douglas Barbe 1955-8-1 327 Siskiyou Summit of Mt. Bolivar, Scott Mts. 2468 Comment
  CAS-BOT-BC79910  Antennaria microphylla Doris K. Kildale 1929-7-20 8580 Siskiyou South east spur of Preston Peak 1950 Comment
  HSC62588  Antennaria microphylla Al Hobart Siskiyou Youngs Valley Comment
  HSC61191  Antennaria racemosa Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  HSC61190  Antennaria racemosa Al Hobart Siskiyou El Capitan 1524 Comment
  UC165973  Antennaria racemosa Geo. D. Butler 1910-6-4 1502 Siskiyou Sh<?>leford Creek 1219 Comment
  UC34179  Antennaria rosea Harley P. Chandler 1901-6-1 1656 Siskiyou Marble Mountain North Coast Ranges, Marble Mountain 2438 Comment
  UC891547  Antennaria rosea J. Thomas Howell 1937-7-21 13177 Siskiyou near Big Flat; South Fork of Salmon River 1524 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
  HSC33962  Antennaria rosea subsp. rosea J. P. Smith 1974-5-25 7446 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  HSC4643  Antennaria rosea subsp. rosea R. C. Wunner 1965-7-9 361 Siskiyou California Lava Beds National Monument; junction of main road and Crescent Butte Cinder Pit 1479 Comment
  HSC30609  Antennaria umbrinella Frederick W. Oettinger 1969-8-22 1485 Siskiyou In Pierce's Draw; Salmon Mountains 1677 Comment
  SEINET12948030  Antirrhinum breweri G. D. Butler 1910-7-17 1569 Siskiyou Humbug Mountain. 1067 Comment
  UC163992  Apocynum androsaemifolium Geo. D. Butler 1908-8-9 77 Siskiyou near Cold Spring (Woolly Creek) Comment
Read comments
May 9 2012
  CAS-BOT-BC394976  Aquilegia formosa John Thomas Howell 1937-7-24 13388 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC395152  Aquilegia formosa Wm. Bridge Cooke 1938-7-15 11195 Siskiyou Bear Springs, Mount Shasta Comment
  CAS-BOT-BC407124  Aquilegia formosa A. A. Heller 1916-7-20 12472 Siskiyou Near Wagon Creek Falls, E side of Mt. Eddy 1524 Comment
  CAS-BOT-BC394985  Aquilegia formosa Geo. D. Butler 1909-6-23 902 Siskiyou Goosenest Comment
  CAS-BOT-BC397946  Aquilegia formosa Gilbert J. Muth 1969-8-6 1243 Siskiyou Boulder Peak Ridge Gap Meadow Comment
  SBBG2098  Aquilegia formosa H. and M. Dearing 1939-7-2 3806 Siskiyou near Salmon 1524 Comment
  HSC87012  Aquilegia formosa var. formosa Steve Morgan 1987-7-28 Siskiyou McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, S of Mt. Shasta 1768 Comment
  JEPS53029  Arabis glabra W. L. Jepson Jul 1894 59 d Siskiyou Sisson Comment
  JEPS53035  Arabis glabra Geo. D. Butler 1908-6-23 122 Siskiyou Yreka Comment
  HSC25413  Arabis holboellii var. pinetorum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5693 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  RSA47780  Arabis holboellii var. pinetorum Roxana S. Ferris, Laura Lorraine 11858 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1418 Comment
  HSC22430  Arabis holboellii var. retrofracta J. O. Sawyer 1969-7-9 1248 Siskiyou W facing slope above Bingham Lake 2317 Comment
  HSC29174  Arabis holboellii var. retrofracta Frederick W. Oettinger 1969-7-11 992 Siskiyou Marble Mtn. Wilderness Area, near Half-way Spring, trail from English Lake to Diamond Lake 1829 Comment
  HSC29175  Arabis holboellii var. retrofracta Frederick W. Oettinger 1969-7-10 961 Siskiyou Marble Mtn. Wilderness Area, SW of Upper English Lake 1921 Comment
  CAS-BOT-BC16716  Arabis modesta Lincoln Constance; Reed Clark Rollins 1942-5-13 2907 Siskiyou Klamath-Siskiyou Region. Klamath River 4 miles east of Seiad. 457 Comment
  HSC90570  Arabis puberula Jennifer Whipple 1976-6-11 961 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  UC589673  Arabis subpinnatifida Douglas Horn 1938-4-17 28 Siskiyou hills e Etna 883 Comment
  RSA138225  Aralia californica P. C. Everett, E. K. Balls 1959-10-24 23942 Siskiyou 6 mi. W from Red Bank F. S. Camp, on road to Somesbar from Sawyers Bar Comment
  POM354175  Arceuthobium abietinum Louis C. Wheeler 1934-8-10 3102 Siskiyou Dead Cow Creek, Siskiyou Mtns. (Mt Diablo Mer.) 1890 Comment
  SEINET2471286  Arceuthobium abietinum R. L. Mathiasen 2007-9-15 2007 -39 Siskiyou 6.4 km W. of McCloud on St. Rte. 89 at turn to Mt. Shasta Ski Park 1340 Comment
  UC1409473  Arceuthobium campylopodum Frederick W. Oettinger 1969-8-22 1509 Siskiyou just w of outlet Horse Range Lake; Salmon Mountains, Marble Mountain Wilderness Area, English P 1821 Comment
  SEINET2140004  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-1 2003 -46 Siskiyou On trail to Eaton Lake, Russian Peak Wilderness Area. 1715 Comment
  UCD51962  Arctostaphylos manzanita Warren Roberts 1967-9-25 Siskiyou Near Somes Bar. Comment
  CAS-BOT-BC40019  Arctostaphylos nevadensis Gilbert Muth 1969-8-10 1335 Siskiyou Ridge w. of Boulder Peak 2377 Comment
  HSC4922  Arctostaphylos nevadensis J. O. Sawyer 1968-7-9 421 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  JEPS49538  Arctostaphylos nevadensis W. L. Jepson 1940-6-27 20040 Siskiyou e slope Mt. Shasta 1828 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
  CAS-BOT-BC45412  Arctostaphylos nevadensis subsp. knightii C. Hart Merriam 1910-10-1 s.n. Siskiyou Happy Camp, Klamath River. Comment
  CAS-BOT-BC46474  Arctostaphylos patula W. R. Dudley 1899-8-22 s.n. Siskiyou Top of Craggy Mt. Comment
  CAS-BOT-BC46485  Arctostaphylos patula Harley Pierce Chandler 1901-6-1 1600 Siskiyou Near Marble Mt. 2286 Comment
  CAS-BOT-BC46491  Arctostaphylos patula C. B. Wolf 1931-9-2 2394 Siskiyou 3 mi. above junction with Pacific Highway on the McCloud Road. 1158 Comment
  JEPS38840  Arctostaphylos patula W. L. Jepson 1914-8-14 6163 Siskiyou Dunsmuir 670 Comment
  POM367402  Arctostaphylos patula B. C. Templeton 1964-6-10 10067 Siskiyou Moutain slope of Mt. Shasta. Comment
  POM77503  Arctostaphylos patula Geo D. Butler 1909-3-7 586 Siskiyou Hills near Yreka. Comment
  RSA238584  Arctostaphylos patula Frederick W. Oettinger 1967-8-26 324 Siskiyou Top of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2226 Comment
  UC796519  Arctostaphylos patula Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11771 Siskiyou on Forks of Salmon Rd about 6 mi from Etna 1706 Comment
  SEINET11988200  Arctostaphylos patula W. Roderick, Sigg, J. 1981-1 s.n. Siskiyou Cook & Green Pass 1372 Comment
  CHSC117378  Arctostaphylos patula subsp. patula Richard R. Halse 2015-3-21 9325 Siskiyou Weed; southern part of city, west side of Interstate Hwy. 5, off of Mountain View Drive. 1083 Comment
  CAS-BOT-BC47008  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1928-4-2 4404 Siskiyou Klamath River at Somes Bar. Comment
  CAS-BOT-BC47020  Arctostaphylos viscida subsp. viscida Alice Eastwood 1912-7-20 1250 Siskiyou Horubrook. Comment
  RSA629723  Arctostaphylos viscida subsp. viscida L. C. Wheeler 1958-8-19 7401 Siskiyou Seiad Creek Mine. Comment
  UC165944  Arenaria congesta var. suffrutescens Geo. D. Butler 1908-8-3 51 Siskiyou Log Lake Comment
  UCD129116  Arnica chamissonis Malcolm A. Nobs; Calvin McMillan 1949-6-17 797 Siskiyou Grass Lake, Highway 97. Comment
  UCD129106  Arnica cordifolia Sandy Holloway 1963-5-19 59 Siskiyou 2.5 miles west of Hawkinsville near Humbug Road. 1066 Comment
  CAS-BOT-BC82549  Arnica discoidea Alice Eastwood 1921-7-24 10719 Siskiyou Castle Lake Comment
  CAS-BOT-BC82557  Arnica discoidea Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  HSC22128  Arnica discoidea J. O. Sawyer 1969-6-11 825 Siskiyou Lower slope near C.C.C. road on the N fork of Horse Range Creek 1357 Comment
  HSC42917  Arnica discoidea J. O. Sawyer, Ken Stillman 1976-7-1 2790 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  POM53677  Arnica discoidea E. B. Copeland 1903-8-17 3909 Siskiyou Mt. Eddy. 1311 Comment
  RSA237228  Arnica discoidea Frederick W. Oettinger 1967-6-28 134 Siskiyou Kelly Gulch (tributary to Salmon River). The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  CAS-BOT-BC82665  Arnica latifolia John Thomas Howell 1937-7-26 13552 Siskiyou Caribou Gulch Comment
  CDA16952  Arnica latifolia G. F. Hrusa 1993-8-14 11398 Siskiyou Summit of pass betw. Happy Camp, Ca. and O'Brien, Or., just on Ca. side of state boundary. 1371 Comment
  RSA215646  Arnica latifolia Gilbert Muth 1969-8-10 1310 Siskiyou Ridge west of Boulder Peak 2226 Comment
  SBBG7592  Arnica mollis H. and M. Dearing 1948-9-12 6735 Siskiyou Mt Shasta 2316 Comment
  UCD56024  Arrhenatherum elatius S. D. Nelson 1947-5-24 s.n. Siskiyou Scott Valley. Comment
  JEPS82415  Artemisia arbuscula Gilbert Muth 1966-8-7 504 Siskiyou ridge, Lookout Trail; Marble Mountain Wilderness Area 2057 Comment
  HSC2271  Artemisia dracunculus Geo. D. Butler 1910-9-16 1878 Siskiyou Comment
  CHSC72225  Artemisia tridentata subsp. tridentata Vernon H. Oswald; Lowell Ahart 1998-9-16 9629 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  CHSC100006  Aruncus dioicus var. pubescens L. P. Janeway 2008-7-25 9491 Siskiyou Klamath Ranges. Siskiyou Mountains; at Horsetail Falls, along Road 48N20, along upper eastern fork of East Fork Seiad Creek. 1237 Comment
  HSC103546  Asarum hartwegii Thomas W. Nelson 2005-5-24 9319 Siskiyou Shoeinhorse Mountain, along Forest Service Rd. 11, just west of Butcherknife Creek 880 Comment
  UC705672  Asclepias fascicularis Marion Ownbey, Fred G. Meyer 1940-7-4 2170 Siskiyou near Hornbrook; Ditch Creek Comment
  JEPS117565  Asclepias speciosa Lowell Ahart, John Dittes 2010-7-30 16965 Siskiyou About 10 yards west 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
  HSC30617  Asclepias speciosa Frederick W. Oettinger 1969-8-12 1331 Siskiyou Salmon Mtns., 1 mi. from Etna Summit on Rd. toward Etna. Comment
  CAS-BOT-BC478847  Asparagus officinalis W. B. Cooke; V. G. Cooke 1958-10-10 s.n. Siskiyou Between high school and Howard, Mt. Shasta 1219 Comment
  RSA577265  Aspidotis densa L. C. Wheeler 1934-8-13 3112 Siskiyou East Fork Horse Creek Comment
  POM261532  Aster radulinus Alice Eastwood 1912-7-21 1281 Siskiyou Sisson. Comment
  NY658496  Astragalus filipes J. W. Thompson 1936-7-9 13167 Siskiyou Lava Beds National Monument Comment
  CDA26673  Astragalus gambelianus G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2597 Siskiyou Between restaurant and motel properties, Old Highway 99, south edge of Yreka. Comment
  RSA415582  Astragalus lentiginosus var. platyphyllidius M. O'Mera 1974-5-27 485 Siskiyou Along road 47N03 1280 Comment
  CAS-BOT-BC187333  Astragalus lentiginosus var. salinus Elmer I. Applegate 1935-6-5 9333 Siskiyou Lyons road, north boundary area, Lava Beds National Monument Comment
  HSC39771  Astragalus purshii J. O. Sawyer 1970-4-4 2080 Siskiyou Along Sugar Creek 823 Comment
  CAS-BOT-BC192920  Astragalus purshii var. lectulus L. E. Smith 1914-4-20 634 Siskiyou Yreka Comment
  HSC104142  Astragalus purshii var. lectulus Dana York 2011-8-13 3069 Siskiyou Klamath National Forest, Marble Mountain Wilderness, 230 m W-SW of Black Marble Mountain 2220 Comment
  JEPS54811  Astragalus purshii var. tinctus Geo. D. Butler 1909-4-14 631 Siskiyou Humbug Comment
  SEINET3127347  Astragalus purshii var. tinctus G. C. Butler 1910-5-5 1283 Siskiyou Humbug Mountain Comment
  CHSC111072  Astragalus whitneyi Barbara L. Wilson 2011-7-31 16701 Siskiyou Shasta-Trinity National Forest; north of the Pacific Crest Trail on road 42N17, at a 90 degree bend, in the Park Creek drainage. UTM 10 538978 east, 4578744 north, +/- 36 feet. 2023 Comment
  JEPS82266  Astragalus whitneyi var. siskiyouensis Roger Raiche 1983-8-13 30596 Siskiyou summit area of Mt. Eddy 2743 Comment
  RSA249717  Astragalus whitneyi var. siskiyouensis Frederick W. Oettinger 1969-7-25 s.n. Siskiyou Scott Mts., Shasta-Trinity National Forest.; c. 14 air mi. SW of Weed, 0.4 mi. NE of Rock Fence Creek along road to Kangaroo Lake. Comment
  HSC65569  Asyneuma prenanthoides R. White 1977-7-21 122 Siskiyou Slope below outlet of Raspberry Lake. 1512 Comment
  UCD66895  Asyneuma prenanthoides J. P. Smith and Steve Selva 1970-7-15 4340 Siskiyou Klamath Nat'l. Forest; road to Happy Camp. 731 Comment
  UC1408834  Athyrium distentifolium var. americanum Frederick W. Oettinger 1968-8-12 499 Siskiyou area just se Tobacco Lake (Golden Peak); Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1889 Comment
  UC185191  Athyrium distentifolium var. americanum Geo. D. Butler 1910-7-10 1738 Siskiyou Upper Campbell Lake 1676 Comment
  HSC61203  Athyrium distentifolium var. americanum Al Hobart Siskiyou El Capitan Comment
  UC185243  Athyrium filix-femina var. cyclosorum Geo. D. Butler 1910-7-8 1675 Siskiyou Shackleford Creek 1219 Comment
  UC371153  Athyrium filix-femina var. cyclosorum G. D. Butler 1908-8-4 244 Siskiyou Wooly Creek Cold Spring Camp Comment
  UC42238  Athyrium filix-femina var. cyclosorum Marshall A. Howe 1894-7-25 Siskiyou Sisson Comment
  HSC4340  Atriplex prostrata L. C. Wheeler 1934-10-21 3331 Siskiyou Shasta Valley 4 mi. E of Grenada 869 Comment
  HSC4360  Atriplex rosea R. C. Wunner 1965-8-14 420 Siskiyou Lava Beds National Monument, Hovey Point. 1220 Comment
  HSC4357  Atriplex truncata L. C. Wheeler 1934-10-21 3330 Siskiyou Shasta Valley 4 mi. E of Grenada 869 Comment
  POM312479  Atriplex truncata Verne Grant, Irving Schneider 1947-8-26 8301 Siskiyou Interstate Highway, Lower Klamath Lake Comment
  HSC9030  Avena fatua D. M. Thomson 1965-7-17 152 Siskiyou Lava Beds National Monument, N boundary Comment
  CAS-BOT-BC106540  Balsamorhiza deltoidea Geo. D. Butler 1910-4-16 1180 Siskiyou Klamath Hills Comment
  HSC68220  Balsamorhiza deltoidea J. P. Smith 1973-5-5 6511 Siskiyou Along Cook and Green Pass Rd. Comment
  UC166118  Balsamorhiza deltoidea Geo. D. Butler 1909-4-14 595 Siskiyou Humbug Road Comment
  CAS-BOT-BC100050  Balsamorhiza hookeri Dorothy Parker 1951-5-20 515 Siskiyou on the summit of Scott Mountain 1624 Comment
  RSA0125839  Balsamorhiza hookeri var. lanata M. S. Baker 1933-4-22 7423 Siskiyou 2 miles S of Yreka. Comment
  CAS-BOT-BC100104  Balsamorhiza sagittata Elmer I. Applegate 1935-6-8 9439 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  HSC36930  Berberis aquifolium var. aquifolium J. P. Smith 1974-5-27 7596 Siskiyou Along USFS Rd. 47N03 1646 Comment
  CAS-BOT-BC75722  Berberis nervosa Alice Eastwood 1921-7-26 10862 Siskiyou Soda Creek. Comment
  HSC3351  Berberis nervosa Jerry Parker 1968-10-6 151 Siskiyou 1372 Comment
  CAS-BOT-BC75923  Berberis piperiana Doris K. Kildale 1929-4-27 7844 Siskiyou Cecilville upper South Fork of Salmon River. Comment
  CAS-BOT-BC75932  Berberis piperiana Roxana S. Ferris; Laura Lorraine 1948-6-12 11814 Siskiyou At Mule Creek crossing of Scott Mountain Road. 1524 Comment
  UC1001148  Berberis vulgaris Dorothy Parker 1952-5-24 4 Siskiyou Low hillsides on Quartz Valley (Mill Creek) 883 Comment
  UC1045287  Betula occidentalis W. Bridge Cooke 1940-7-12 15328 Siskiyou swamp near Mt. Shasta High School Comment
  UC1192188  Bidens cernua Verne Grant and Irving Schneider 1947-8-26 8295 Siskiyou irrigation ditch w of Tule Lake Comment
  RSA608433  Bidens cernua L. C. Wheeler 1935-7-3 3648 Siskiyou 2 mi nw of Montague (Shasta River); Shasta River. 761 Comment
  UCR30556  Bidens frondosa John C. Roos 1948-9-1 3942 Siskiyou Marsham Stream at Yreka Comment
  CAS-BOT-BC413070  Bistorta bistortoides L. S. Smith 1913-6-1 333 Siskiyou Sisson Comment
  CAS-BOT-BC127933  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek 914 Comment
  CAS-BOT-BC127946  Blepharipappus scaber Geo. D. Butler 1909-5-10 697 Siskiyou Yreka Comment
  UC166059  Blepharipappus scaber Geo. D. Butler 1910-5-17 1355 Siskiyou Yreka Comment
  HSC75109  Blepharipappus scaber J. P. Smith, Thomas W. Nelson 1979-6-16 10139 Siskiyou Klamath National Forest; S.R. 3, 2.7 miles from the Scott Mtn.summit 1341 Comment
  POM215870  Blepharipappus scaber L. C. Wheeler 1935-6-9 3553 Siskiyou Yreka Creek, Siskiyou Mountains. 1220 Comment
  RSA120894  Blepharipappus scaber Milo S. Baker 1957-6-16 13125 Siskiyou Scott Mountain. 1616 Comment
  CAS-BOT-BC15804  Boechera acutina Thomas W. Nelson; Jane P. Nelson 1980-7-19 6196 Siskiyou Along Forest Service road 29N01 A at Fox Creek ca. 1 mile from junction with Forest Service road 29N01. 1676 Comment
  SEINET193231  Boechera breweri Lincoln Constance, Reed C. Rollins 1942-5-14 2930 Siskiyou Shasta River 6 miles north of Yreka. 762 Comment
  UCD77344  Boechera lyallii Robert E. Preston 2002-7-14 1933 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 1981 Comment
  CAS-BOT-BC65366  Boechera platysperma R. C. Wenk 2008-7-23 906 Siskiyou SW side of Mount Shasta, below Panther Meadow. 2269 Comment
  CAS-BOT-BC25615  Boechera retrofracta John Thomas Howell 1939-8-4 15048 Siskiyou Marble Mountains. Marble River. 1889 Comment
  CAS-BOT-BC25627  Boechera retrofracta Gilbert Muth 1966-7-8 370 Siskiyou Marble Mountains. Marble Valley. 1792 Comment
  SEINET3166090  Boechera retrofracta P. J. Alexander 2008-7-23 867 -A Siskiyou Boulder Creek Trail, +-1.9 miles N of Boulder Peak, +-6 miles ENE of Black Marble Mountain, +-15 miles NW of Etna, Salmon Mountains, Klamath National Forest. 1798 Comment
  UC165313  Boechera retrofracta Geo. D. Butler 1910-5-10 1331 Siskiyou Goosenest foothills Comment
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Jan 23 2011
  SEINET3132274  Boechera retrofracta G. D. Butler 1163 Siskiyou Dryland, Loy Lake, Shackleford Creek. 1219 Comment
  SEINET5340254  Boechera retrofracta G. Butler 1663 Siskiyou Lay Lake - Shackleford Creek. 1219 Comment
  CAS-BOT-BC410948  Boechera sparsiflora L. E. Smith 1913-5-28 309 Siskiyou Yreka Comment
  UC166605  Boechera stricta Geo. D. Butler 1910-7-8 1664 Siskiyou Log Lake Shackleford Creek 1219 Comment
  CAS-BOT-BC25873  Boechera subpinnatifida Lincoln Constance; Reed Clark Rollins 1942-5-14 2923 Siskiyou Klamath-Siskiyou Region. Road to Walker Post Office, 4 miles west of Yreka. 1219 Comment
  CAS-BOT-BC25869  Boechera subpinnatifida Alice Eastwood; John Thomas Howell 1937-6-25 5024 Siskiyou Callahan. Comment
  UC1159804  Bolboschoenus maritimus Edward J. O'Neill Sep 1965 Siskiyou Tulelake Fish and Game Preserve Comment
  HSC22126  Boschniakia strobilacea J. O. Sawyer 1969-7-1 996 Siskiyou SE facing slope above Paynes Lake Creek 1921 Comment
  UC1611325  Botrychium pinnatum Donald Burk 1993-10-1 Siskiyou ca. 3/4 mi e Gray Butte radio facilities (between confluence of 2 streams); s slope Mt. Shasta 1950 Comment
  HSC103381  Botrychium virginianum Martin J. Lenz 2006-7-13 3082 Siskiyou ~ 2 aerial mi. NW of north Dunsmuir. 1040 Comment
  HSC67713  Boykinia major John Palmer 1980-7-24 613 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  JEPS83833  Boykinia major Wayne Roderick July 1978 Siskiyou vicinity Cook and Green Pass (near spring w of Pass); Siskiyou Mountains, vicin Cook and Green Pass 1463 Comment
  UCD102599  Boykinia major John M. Tucker; D. V. Hemphill 1974-7-28 4332 Siskiyou 1 mile south of Haypress Meadows, between trail to Camp 4, Marble Mountain Wilderness Area. 1463 Comment
  HSC64835  Boykinia occidentalis J. P. Smith, Steve Selva 1970-6-15 3914 Siskiyou 10 mi. NW of Forks of Salmon Comment
  CAS-BOT-BC418420  Boykinia occidentalis Doris K. Kildale 1928-8-1 6188 Siskiyou 1/2 miles north of Brookings Comment
  CAS-BOT-BC30273  Brassica nigra Henry M. Pollard 1947-8-22 s.n. Siskiyou North of Somes Bar. Fontana's Fishing Lodge. Comment
  UC375292  Brassica rapa Geo. D. Butler 1908-7-14 1048 Siskiyou fields near Yreka Comment
  JEPS18783  Brickellia californica Geo. D. Butler 1909-9-20 948 Siskiyou along creek near Yreka Comment
  UC1408932  Brickellia grandiflora Frederick W. Oettinger 1968-8-23 611 Siskiyou due ene of, high lake basinns in the vicinity of English Peak Diamond Lake; Salmon Mountains, Marble Mountain Wilderness Area 2057 Comment
  UC75828  Brickellia grandiflora Milo S. Baker 1899-7-1 Siskiyou e slope of Mt. Shasta Mt. Shasta Comment
  CAS-BOT-BC127716  Brickellia greenei Alice Eastwood 1912-8-28 1956 Siskiyou Cantara Comment
  HSC69142  Brickellia greenei Maralyn A. Renner 1980-8-8 2475 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  UC61169  Brodiaea coronaria subsp. coronaria W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Mount Shasta Comment
  UCD57883  Bromus carinatus Alton 1953-7-28 KNF 5 Siskiyou Siskiyou-Trinity Co. line. Klamath N. F. Long Gulch Camp. 1889 Comment
  CAS-BOT-BC148789  Bromus carinatus var. marginatus Doris K. Kildale 1928-7-4 5515 Siskiyou Summit of divide between Sawyers Bar and Etna. Comment
  HSC65264  Bromus diandrus J. P. Smith 1973-5-5 6397 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  HSC65265  Bromus hordeaceus J. P. Smith 1973-5-5 6396 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  UCD58758  Bromus hordeaceus August L. Hormay 1932-4-20 s.n. Siskiyou Brownwell. Comment
  POM363433  Bromus marginatus M. B. Dunkle 1945-1 9214 Siskiyou Klamath National Forest; Marble Mountains, Black Marble ridge [?]. Comment
  RSA211238  Bromus marginatus William J. Ferlatte 1966-6-23 138 Siskiyou along the Yellow Rose Mine Trail. 1677 Comment
  RSA184791  Bromus suksdorfii Gilbert Muth 1966-7-17 409 Siskiyou Trail to lookout, on ridge, Marble Mountains 2043 Comment
  CAS-BOT-BC185592  Bromus tectorum Geo. D. Butler 1909-5-21 816 Siskiyou Roadside near Yreka. Comment
  HSC101709  Bromus tectorum J. P. Smith, J. O. Sawyer 2011-6-25 13257 Siskiyou At the junction of Hwy. 3 and Callahan - Gazelle Road. 834 Comment
  CAS-BOT-BC185381  Bromus vulgaris John Thomas Howell 1939-8-5 15067 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  HSC95754  Calamagrostis breweri Gordon Leppig 1998-8-14 1037 Siskiyou Klamath National Forest, Little Duck Lake Fen, Russian Wilderness, SW of Little Duck Lake 2073 Comment
  UCD57223  Calamagrostis canadensis J. R. Swallen 1940-8-22 15465 Siskiyou Mount Shasta, Mud Creek Canyon. 1981 Comment
  HSC30648  Calamagrostis koelerioides Frederick W. Oettinger, R. F. Thorne 1969-8-4 1162 Siskiyou Salmon Mountains, above Halfway Spring on trail from English Lake to Diamond Lake 1829 Comment
  RSA126056  Calamagrostis koelerioides I. L. Wiggins 1955-7-27 13558 Siskiyou Caribou Lake, Salmon River-Trinity Alps Primitive Area. 2043 Comment
  UC1265354  Calamagrostis koelerioides F. W. Oettinger 1968-9-7 771 Siskiyou n.w. slope on ridge above Tobacco lake (Salmon Mts.); W. Siskiyou Co., Salmon Mts. 2011 Comment
  CAS-BOT-BC85728  Calocedrus decurrens Doris K. Kildale 1927-11-20 4175 Siskiyou Fort Jones Comment
  CAS-BOT-BC85746  Calocedrus decurrens Wm. Bridge Cooke 1938-9-2 11592 Siskiyou Sisson Southern Trail 1524 Comment
  RSA352871  Calocedrus decurrens B. C. Templeton 1969-9-5 11425 Siskiyou About 2 miles northwest of the town of Mt. Shasta 1090 Comment
  UC60898  Calocedrus decurrens W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Mt. Shasta Comment
  CAS-BOT-BC85735  Calocedrus decurrens H. E. Brown 1897-6-15 507 Siskiyou North side of Mt. Shasta 2743 Comment
  UC909346  Calochortus coeruleus Ira L. Wiggins 1950-5-28 12383 Siskiyou just above Grouse Lake (headwaters of Grouse Creek); Grouse Creek 1737 Comment
  HSC77084  Calochortus coeruleus K. T. Stillman 1978-6-17 10 Siskiyou Marble Mtn. Wilderness Area, Elk Valley 1768 Comment
  JEPS50835  Calochortus elegans Theodore Niehaus 1967-7-2 768 Siskiyou Paradise Lake Marble Mountain Wilderness Area Comment
  CAS-BOT-BC488618  Calochortus elegans var. nanus Doris K. Kildale 1928-7-2 5348 Siskiyou Salmon Summit, near Horn Creek Trail 1981 Comment
  UC1170099  Calochortus macrocarpus unknown 1956-7-16 30302 Siskiyou n side Mount Shasta (along U.S. Hwy 97, above hwy) 1219 Comment
  CHSC2232  Calochortus nudus N. Jaekel 1939-7-6 Siskiyou Castle Lake. 1981 Comment
  RSA211388  Calochortus nudus William J. Ferlatte 1966-8-3 272 Siskiyou Josephine Lake basin. Trinity Alps. 1677 Comment
  SEINET8197655  Calochortus nudus W. Roderick, D. Parker 1967-7-25 s.n. Siskiyou Scott Mountain, Cabin Meadow. 1829 Comment
  SEINET8273312  Calochortus nudus Frank Callahan 2007-7-5 Siskiyou Methodist Camp Meadows above or west of Scott Camp Creek. 1483 Comment
  SEINET8253677  Calochortus persistens Frank Callahan, John Erwin 2007-6-17 Siskiyou Cottonwood Peak northeast flank. Comment
  CAS-BOT-BC494022  Calochortus tolmiei J. H. Thomas 1954-5-12 4121 Siskiyou Salmon Mountains, klamath National Forest. Near south Fork of Salmon River, 5 to 9 miles southeast of Cecilville 975 Comment
  CAS-BOT-BC167236  Caltha leptosepala R. C. Wenk 2008-7-24 919 A Siskiyou Kangaroo Lake, south of the Gazelle-Callahan Rd. 1851 Comment
  HSC69129  Caltha leptosepala Maralyn A. Renner 1980-7-24 2046 Siskiyou Lily Pad Lake 1768 Comment
  HSC69352  Caltha leptosepala Maralyn A. Renner 1980-8-21 2572 Siskiyou Kidd Creek 2043 Comment
  RSA11162  Calycadenia ciliosa C. B. Wolf 1927-8-27 1152 Siskiyou Klamath River, 1 mile above mouth of Salmon Comment
  CAS-BOT-BC273392  Calycadenia fremontii Carl B. Wolf 1927-8-27 1152 Siskiyou On the Klamath River 1 mile above the Salmon River Comment
  JEPS30009  Calycadenia truncata Geo. D. Butler 1908-8-2 343 Siskiyou roadside near, Greenview; Scott Valley Comment
  UC134365  Calycadenia truncata Dr. E. B. Copeland 1903-7-4 3547 Siskiyou Klamathon Comment
  UC166116  Calycadenia truncata Geo. D. Butler 1908-8-29 320 Siskiyou Comment
  UC1971712  Calycadenia truncata 1978-8-17 2129 Siskiyou ca. 4.0 mi W of Gazelle on the Gazelle-Callahan Road, S of Yreka 950 Comment
  CAS-BOT-BC272753  Calycadenia truncata subsp. truncata Dr. E. B. Copeland 1903-7-4 3547 Siskiyou Klamathon Comment
  HSC4943  Calypso bulbosa J. O. Sawyer 1968-6-18 199 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  HSC4431  Calyptridium umbellatum William J. Ferlatte 1966-6-22 77 Siskiyou Josephine Lake Basin 1677 Comment
  JEPS52531  Calyptridium umbellatum W. L. Jepson 1894-8-9 Siskiyou Shasta Springs, Horshoe Bend Shasta Springs; , Horshoe Bend Comment
  CAS-BOT-BC221253  Calystegia malacophylla subsp. malacophylla A. A. Heller 1905-6-5 7988 Siskiyou Shasta Springs Comment
  CAS-BOT-BC497586  Camassia quamash subsp. breviflora Frank W. Gould 1940-5-15 1224 Siskiyou Bull Meadows, Goosenest Mountain 1524 Comment
  CDA3581  Camelina microcarpa T. C. Fuller 1962-5-18 8747 Siskiyou B. M. Long property, Little Shasta Road, ca. 5 miles east of Montague. 0 Comment
  CAS-BOT-BC36999  Camelina microcarpa Brandegee s.n. Siskiyou Unspecified. Comment
  CDA3579  Camelina microcarpa T. C. Fuller 1958-6-18 1807 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  CAS-BOT-BC160900  Camissonia tanacetifolia subsp. tanacetifolia Lillian S. Mott 1967-7-2 LM 6760 Siskiyou Along highway near Dorris 1524 Comment
  RSA17747  Camissonia tanacetifolia subsp. tanacetifolia Elmer I. Applegate 1935-6-2 9285 Siskiyou Frenner s Ranch, old road to the Lava Beds, near National Monument. Comment
  RSA186581  Camissonia tanacetifolia subsp. tanacetifolia D. Bates 1960-6-13 2436 Siskiyou Route 97 at Grass Lake Comment
  SEINET10463098  Campanula prenanthoides Muth 1979-8-6 MUTH 13116 Siskiyou Near Tom Gray Gulch, on the Happy Camp quadrangle; close to the town or Happy Camp, gravelly soil, serpentine. 610 Comment
  POM299525  Campanula prenanthoides Marion Ownbey, Fred G. Meyer 1940-7-4 2171 Siskiyou Siskiyou Mts. Northwest of Hornbrook. Comment
  SEINET10463083  Campanula prenanthoides G. B. Grant Grant 5188 Siskiyou Mount Shasta Comment
  SEINET10463352  Campanula prenanthoides LeRoy E. Detling 1947-6-3 Detling 6081 Siskiyou ELK CR, 1/5 MI SE OF HAPPY CAMP 1350', CANYON, ROCKY CLAY SOIL. SEC. 23 T16N R7E Comment
  SEINET10939014  Campanula prenanthoides Edward L. Greene 1876-7-21 Greene 958 Siskiyou Near Yreka Comment
  SEINET10972404  Campanula prenanthoides Lathrop 1903-7-10 LATHROP s.n. Siskiyou Shasta Retreat Comment
  HSC91393  Campanula rotundifolia Jennifer Whipple 1976-7-24 1556 Siskiyou Mt. Eddy, SW of Dobkins Lake 2256 Comment
  UC803881  Campanula rotundifolia G. L. Stebbins Jr. with P. Dansereau, C. McMillan, and K. Narayan 1949-8-9 4022 Siskiyou Along Park's Creek, above Stewart Springs, 10 miles w of Weed. 1219 Comment
  CAS-BOT-BC266452  Campanula scabrella Arthur Menzies 1962-6-21 s.n. Siskiyou Mount Eddy 2529 Comment
  JEPS25839  Campanula scouleri Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7453 Siskiyou about 13 air mi nw Happy Camp (road along Del Norte-Siskiyou county boundary, ridge top dividing Indian Creek drainage from that of Illinois River--leading to Twin Valley) 1584 Comment
  SDSU1313  Campanula scouleri D. F. Howe 1972-7-6 4877 Siskiyou 1.3 miles south of Oregon state line on road to Happy Camp. 1646 Comment
  UC637161  Campanula scouleri Edward Lee 1934-8-13 1080 Siskiyou Happy Camp to Waldo (Oregon) road Klamath National Forest, watershed of west branch of Waldo C 1463 Comment
  SEINET10463604  Campanula scouleri Setchell 1902-7-26 SETCHELL s.n. Siskiyou SISSON, MT. SHASTA Comment
  SEINET10463608  Campanula scouleri Smith 1913-7-12 Smith 480 Siskiyou MT. EDDY Comment
  JEPS53394  Cardamine californica var. integrifolia Geo. D. Butler 1909-4-11 649 Siskiyou Shasta Springs Comment
  POM95843  Cardamine californica var. integrifolia Geo. D. Butler 1910-6-4 1487 Siskiyou Shackleford Creek Comment
  JEPS53306  Cardamine cordifolia var. lyallii Geo. D. Butler 1908-8-8 132 Siskiyou near pond at head Marble Mountain Valley 1676 Comment
  POM95832  Cardamine pulcherrima Geo. D. Butler 1910-4-1 1152 Siskiyou Humbug Mountain. Comment
  CDA16166  Cardaria draba G. F. Hrusa 1998-5-25 14473 Siskiyou Klamath Ranges; Along Klamath R. at Yreka (Hwy 96 rest area) on N side of entrance rd. 632 Comment
  CHSC48061  Carex L. P. Janeway 1983-8-28 633 Siskiyou At Poker Flat. S edge of mdw bordering forest. 1524 Comment
  UC1982127  Carex Robert F. Thorne and Fred Oettinger 1969-8-10 38977 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta Comment
  CAS-BOT-BC19766  Carex abrupta John Thomas Howell 1939-8-3 14962 Siskiyou Marble Mountains. Spirit Lake. 1828 Comment
  HSC29662  Carex abrupta Frederick W. Oettinger 1968-8-11 485 Siskiyou Marble Mtn. Wilderness Area, Tom Taylor Cabin 1982 Comment
  HSC39336  Carex amplifolia J. O. Sawyer 1969-7-11 861 Siskiyou Ravine above C.C.C. road. 1280 Comment
  CAS-BOT-BC17961  Carex angustata William Bridge Cooke 1939-7-7 13613 Siskiyou Mount Shasta. In the Wagon Camp Sedge Swamp. 1737 Comment
  CAS-BOT-BC17968  Carex angustata Frank Walton Gould 1940-5-14 1229 Siskiyou Bull Meadows, Goosenest Mountain. 1524 Comment
  UCD77477  Carex angustata Robert E. Preston 2001-6-30 1665 Siskiyou Klamath National Forest, Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  CAS-BOT-BC17893  Carex angustata William Conklin Cusick 1902-8-14 2991 Siskiyou Summit of the Cascades. Comment
  HSC76375  Carex aquatilis var. dives L. P. Janeway 1982-7-2 36 Siskiyou Poker Flat, end of FS Rd. 18N33 1524 Comment
  HSC85832  Carex aquatilis var. dives L. P. Janeway 1983-7-24 453 Siskiyou Poker Flat: slope between upper & lower parts of meadow. 1524 Comment
  CAS-BOT-BC18124  Carex athrostachya William Bridge Cooke 1940-6-8 15124 Siskiyou In Mount Shasta City. 1082 Comment
  HSC37138  Carex bolanderi J. O. Sawyer 1969-7-9 1214 Siskiyou Near C.C.C. road, N of Sugar Creek 1433 Comment
  UC144466  Carex bolanderi A. A. Heller 1905-6-13 8025 Siskiyou near Shasta Springs Comment
  CAS-BOT-BC19656  Carex brainerdii John Thomas Howell 1939-8-6 15099 Siskiyou Marble Mountains. Elk Mountain. Comment
  CHSC70771  Carex brainerdii A. Francis 1996-7-17 3642 Siskiyou Medicine Lake Highlands, just E of 49 road, NE of Medicine Lake Glass Flow. 2225 Comment
  CHSC62795  Carex buxbaumii L. P. Janeway 1993-8-30 4563 Siskiyou West side of Cedar Lake; head of South Fork Sacramento River. 1741 Comment
  HSC73326  Carex concinnoides Gail Newton 1980-6-20 488 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC34377  Carex cusickii John Thomas Howell 1937-7-23 13335 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC34381  Carex cusickii Elmer I. Applegate 1895-5-28 781 Siskiyou Sisson, Strawberry Valley. Comment
  CAS-BOT-BC34881  Carex deflexa var. boottii John Thomas Howell 1939-8-3 15007 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  RSA237231  Carex deflexa var. boottii Frederick W. Oettinger, Robert F. Thorne 1969-8-5 1217 Siskiyou Near Crapo Peak at Crapo View Gap. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC20056  Carex echinata David D. Keck 1949-7-20 6361 Siskiyou At Trinity County Line. Meadow at Scott Mountain Summit. Comment
  HSC82373  Carex echinata subsp. echinata Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4526 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  UC1265344  Carex echinata subsp. echinata Frederick W. Oettinger 1968-8-3 372 Siskiyou midway on trail between Diamond Lake and Hancock Lake (at Base Camp); Salmon Mountains, Marble Mountain Wilderness Area 2011 Comment
  HSC89537  Carex exsiccata K. Berg, Stephanie Bennett 1986-8-25 652 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little S Fork of Salmon River, above Little S Fork Lake 1982 Comment
  HSC76838  Carex exsiccata L. P. Janeway 1982-6-25 22 Siskiyou 300 m. SE of No Mans Creek, 600 m. up Creek from the Clear Creek Rd. 610 Comment
  HSC97426  Carex feta Gail Newton 1980-6-20 461 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC9328  Carex fracta Wm. Bridge Cooke 1939-7-7 13621 Siskiyou Mount Shasta. Lower Wagon Camp springs 1737 Comment
  SEINET10650708  Carex halliana Taylor 1987-8-9 Taylor 9269 Siskiyou Medicine Lake Area, extreme northeastern portion of county. Common on white pumice on floor of Alcohol Crater, SE 1/4 Section 7, T43N, R4E. Under Pinus contorta canopy, with few other herbaceous taxa: Eriogonum marifolium, Penstemon cinicola, Juncus balticus. Comment
  UC1540262  Carex hoodii Dean W. Taylor 1987-6-26 9067 Siskiyou 2 mi se Medecine Lake (near head of easternmost spring); Paynes Springs 1996 Comment
  UCR39770  Carex hoodii L. P. Janeway 1982-7-2 35 Siskiyou Poker Flat, end of road 18N33. At a raised drier spot in upper part of the meadow. 1524 Comment
  HSC85843  Carex hoodii L. P. Janeway 1983-8-26 608 Siskiyou Poker Flat, across road on N side of meadow 1524 Comment
  HSC97428  Carex hoodii Jennifer Whipple 1978-7-20 2353 Siskiyou E and S facing slopes draining into the N fork of the Sacramento River 2378 Comment
  CAS-BOT-BC7598  Carex inops subsp. inops Ralph K. Gierisch 1968-8-6 3363 Siskiyou Elk Flat in Shasta-Trinity National Forest. 1310 Comment
  CAS-BOT-BC7826  Carex inops subsp. inops J. W. Stacey 1940-7-12 15333 Siskiyou Along the Memorial Highway. 1371 Comment
  JEPS102966  Carex inops subsp. inops L. P. Janeway 2002-7-12 7623 Siskiyou High Cascade Range. 3.5 km south of the top of Ash Creek Butte; 0.2 km southwest of Road 19 (Military Pass Road); 0.6 km north-east of confluence of Ash Creek and Brewer Creek 1573 Comment
  CAS-BOT-BC7600  Carex inops subsp. inops 1938-7-22 11331 Siskiyou Mt. Shasta. 1981 Comment
  CHSC107147  Carex integra R. E. Brainerd 2009-7-21 1533 Siskiyou Trinity Mountains, Gumboot Meadow; 12.2 air miles west of Dunsmuir. UTM Zone 10 541147E 4562996N. 1821 Comment
  HSC29640  Carex integra Frederick W. Oettinger 1969-8-15 1384 Siskiyou High Lake Basins, Marble Mtn. Wilderness Area, near Upper English Lake 1677 Comment
  CAS-BOT-BC7618  Carex interior W. J. Ferlatte 1966-8-2 236 Siskiyou Between campground and South Fork of the Salmon River. Big Flat Hillside seep forming boggy meadow. 1524 Comment
  UCD140468  Carex interior A. A. Heller 1920-7-11 13411 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1158 Comment
  HSC29641  Carex laeviculmis Frederick W. Oettinger 1968-9-9 799 Siskiyou Marble Mtns. Wilderness Area, High Lake Basins, along stream that runs from Tom's Upper Pond to Tom's Lower Pond 2012 Comment
  RSA237326  Carex laeviculmis Frederick W. Oettinger 1969-8-19 1458 Siskiyou Abbott s Basin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  HSC33317  Carex lanuginosa William J. Ferlatte 1974-7-14 1531 Siskiyou Big Flat, near S fork of Salmon River, 100 yds W of campground 1524 Comment
  JEPS109242  Carex lenticularis var. lipocarpa D. W. Taylor 2005-8-18 19481 Siskiyou Dry Creek Peak, cirque on N-face at headwaters of Antelope Creek, ca 12 air miles NE of the summit of Mt. Shasta. Comment
  RSA237283  Carex lenticularis var. lipocarpa Frederick W. Oettinger 1969-8-16 1400 Siskiyou Wire Grass Meadow, English Lake Basin. Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  HSC69564  Carex leptopoda Maralyn A. Renner 1980-8-6 2273 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  HSC73328  Carex leptopoda Gail Newton 1980-6-20 490 Siskiyou Near Bald Mtn. 1097 Comment
  UC1598403  Carex luzulina var. luzulina Ron Mastrogiuseppe, Joy Mastrogiuseppe 1986-8-2 4456 Siskiyou Panther Meadow on s side of mountain Shasta National Forest, Mt. Shasta Comment
  UC642548  Carex luzulina var. luzulina W. Bridge Cooke 1939-6-23 13548 Siskiyou Wagon Camp 1737 Comment
  RSA237263  Carex mariposana Frederick W. Oettinger 1968-9-6 735 Siskiyou Trail northeast of Tom s Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  HSC62586  Carex mertensii Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  CAS-BOT-BC31837  Carex microptera John Thomas Howell 1937-7-22 13252 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  HSC42949  Carex multicaulis J. O. Sawyer, K. T. Stillman 1976-7-1 2770 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  HSC86630  Carex multicaulis D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 1982 Comment
  CAS-BOT-BC32009  Carex multicaulis L. S. Smith 1924-8-20 1512 Siskiyou Round Mt. below road near top. Modoc National Forest 1524 Comment
  HSC77196  Carex multicaulis L. P. Janeway 1983-6-26 350 Siskiyou Near W Branch USFS Station 671 Comment
  SEINET7568467 Image available Carex multicaulis David Castaner 1989-6-19 10243 Siskiyou Trinity Creek campground, along Highway 3 by Trinity River, North Trinity Center. Comment
  CAS-BOT-BC119677  Carex nervina William Bridge Cooke 1938-7-15 11255 Siskiyou Spring meadow, Mt. Shasta 1737 Comment
  HSC76396  Carex nudata L. P. Janeway 1982-7-3 46 Siskiyou At Ferry Point, W side of Klamath River 290 Comment
  POM173649  Carex nudata Geo D. Butler 1910-7-6 1646 Siskiyou Shackleford Creek. 915 Comment
  HSC37420  Carex ovalis J. O. Sawyer 1969-7-18 1374 Siskiyou E of Waterdog Lake 2012 Comment
  CHSC82805  Carex pachystachya L. P. Janeway 2002-7-12 7624 Siskiyou High Cascade Range. 3.5 km south of the top of Ash Creek Butte; 0.2 km southwest of Road 19 (Military Pass Road); 0.6 km north-east of confluence of Ash Creek and Brewer Creek. 1573 Comment
  JEPS93891  Carex pellita Vernon H. Oswald and Lowell Ahart 1998-7-21 9353 Siskiyou ne of Weed and s of Macdoel (along Old State Highway on the w side of Bray); Bray, Old State Highway 1417 Comment
  CAS-BOT-BC119127  Carex phaeocephala William Bridge Cooke 1939-7-26 13756 Siskiyou Along summit trail above timberline (Merriam's) Mount Shasta. 3048 Comment
  CAS-BOT-BC119130  Carex phaeocephala William J. Ferlatte 1967-8-21 1077 Siskiyou Sawtooth Ridge between Caribou Basin and Little South Fork Lake 2286 Comment
  CAS-BOT-BC118573  Carex praegracilis Alice Eastwood; John Thomas Howell 1936-6-13 2748 Siskiyou 6 miles N of Weed Comment
  UC1147794  Carex praegracilis Lewis S. Rose 1937-7-3 37397 Siskiyou Weed 944 Comment
  JEPS25657  Carex preslii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7300 Siskiyou 4 air-line mi nne Preston Peak (meadow at Twin Valley, just e of Del Norte County line); Siskiyou Mts., Twin Valley, watershed of Indian Creek 1493 Comment
  CHSC102562  Carex rossii L. P. Janeway 2009-8-3 9891 Siskiyou High Cascade Range. Mt. Shasta, east-northeast slope 2.4 air km southwest of Brewer Creek Trailhead; about 20 m south of Brewer Creek. 2637 Comment
  CHSC99696  Carex rossii L. P. Janeway 2008-7-24 9471 Siskiyou Klamath Ranges. Siskiyou Mountains; at end of short spur road into top of Alex Hole; 1.0 km east-southeast of Condrey Mountain. 1975 Comment
  HSC29657  Carex rossii Frederick W. Oettinger, R. F. Thorne 1969-8-5 1217 Siskiyou Marble Mtn. Wilderness Area, open ridge top near Crapo Peak at Crapo View Gap Comment
  CHSC40186  Carex scabriuscula L. P. Janeway 1983-8-27 623 Siskiyou Twin Valley lower meadow near trail, on w side of creek. 1493 Comment
  HSC77155  Carex scabriuscula L. P. Janeway 1983-8-27 623 Siskiyou Twin Valley, lower meadow near trail, on W side of creek. 1494 Comment
  JEPS84063  Carex scopulorum var. bracteosa L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6435 Siskiyou ca. 5 mi n town of Seiad Valley (cirque at head of Hell's Canyon, e slope of Kangaroo Mountain); Kangaroo Mountain, Hell's Canyon 1828 Comment
  HSC30556  Carex spectabilis Frederick W. Oettinger 1968-9-5 709 Siskiyou Marble Mtn. Wilderness Area, S end of Diamond Lake 2073 Comment
  HSC30702  Carex spectabilis Frederick W. Oettinger 1969-8-19 1439 Siskiyou Marble Mtn. Wilderness Area, SW of Arrow Peak and N of English Peak 1936 Comment
  SEINET10847233  Carex stipata Unknown 1940-6-8 Anonymous 15121 Siskiyou In meadow in Mount Shasta City. Comment
  UC70467  Carex straminiformis Geo. B. Grant September, 1902 5129 Siskiyou Horse Camp Mount Shasta 2438 Comment
  CAS-BOT-BC117067  Carex straminiformis William Henry Brewer 1398 Siskiyou Mt. Shasta Comment
  CHSC110081  Carex straminiformis Robert F. Thorne; Fred Oettinger 1969-8-10 38977 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta; moist ground of streamlet originating as overflow from large water tank above ski lodge. 2316 Comment
  CAS-BOT-BC115835  Carex subfusca John Thomas Howell 1937-7-29 13626 Siskiyou Scott Mt. between Trinity and Siskiyou Cos. Comment
  CAS-BOT-BC115853  Carex subfusca Cyrus Guernsey Pringle 1881-8-17 s.n. Siskiyou Mt. Shasta 2438 Comment
  HSC776  Carex subfusca William J. Ferlatte 1967-8-17 951 Siskiyou Yellow Rose Mine 1982 Comment
  HSC76836  Carex vesicaria L. P. Janeway 1982-8-13 128 Siskiyou N side of Bear Lake 1814 Comment
  SEINET11998355  Cassiope mertensiana Unknown 1986-1 60402 Siskiyou SW of Cook & Green Pass, Kangaroo Mt 1920 Comment
  HSC29373  Castilleja applegatei Frederick W. Oettinger 1968-8-22 603 Siskiyou Salmon Mts., above English Lake trail on English Lake side of Pass to Diamond Lake 1890 Comment
  HSC76985  Castilleja applegatei subsp. martinii K. T. Stillman 1976-6-25 65 Siskiyou Marble Mtn. Wilderness Area 2073 Comment
  JEPS23769  Castilleja applegatei subsp. pinetorum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6826 Siskiyou just n and below Scott Mountain road summit; Scott Mountain 1615 Comment
  POM44685  Castilleja applegatei subsp. pinetorum Geo. D. Butler 1910-7-9 1711 Siskiyou Wooly Creek. 1677 Comment
  UC61065  Castilleja applegatei subsp. pinetorum W. A. Setchell, C. C. Dobie Jul 1902 Siskiyou Sisson; Mount Shasta Comment
  CAS-BOT-BC243753  Castilleja applegatei var. pinetorum David D. Keck 1938-8-8 4873 Siskiyou At Trinity Co. line, Scott Mountain Divide, between Scott Mtn. and Craggy Peak 1676 Comment
  JEPS76187  Castilleja arachnoidea T. I. Chuang with Fei-Mei Chuang 1977-7-22 7635 Siskiyou 0.75 mi from Deadfall Meadow to Deadfall Lake; Mt. Eddy 2042 Comment
  RSA46748  Castilleja arachnoidea J. T. Howell 1937-7-29 13659 Siskiyou Scott Mountain between Trinity and Siskiyou counties. Comment
  HSC64583  Castilleja lacera J. O. Sawyer 1979-5-26 3362 Siskiyou Along Hwy. 3 on N side of Scott Mtn. 1341 Comment
  UC1096817  Castilleja lacera Milo S. Baker 1957-6-16 13164 Siskiyou near Callahan (after turn-off, trip to Scott Mt.) Comment
  HSC20561  Castilleja linariifolia R. C. Wunner 1965-6-30 311 Siskiyou Lava Beds N.M., .1 mi. above Big Painted Cave Comment
  CAS-BOT-BC253621  Castilleja miniata Doris K. Kildale 1929-7-20 8616 Siskiyou Elk Lick, South Fork of Indian Creek 1219 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
  CAS-BOT-BC254109  Castilleja miniata Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Skyhigh Lake Comment
  HSC61114  Castilleja miniata Ruby Van Deventer 1955-7-31 Siskiyou FS Rd. 17N04, Doe Flat 1067 Comment
  HSC61115  Castilleja miniata Ruby Van Deventer 1955-7-31 Siskiyou FS Rd. 17N04, Doe Flat 1067 Comment
  UCR61243  Castilleja miniata 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-BC254110  Castilleja miniata Wm. Bridge Cooke 1938-9-8 11659 Siskiyou Mt. Shasta. Heather Meadow. 2438 Comment
  HSC58884  Castilleja pruinosa Marvin Butler 1971-7-13 127 Siskiyou Near Cyclone Gap, close to the town of Cave Junction 1585 Comment
  JEPS23708  Castilleja pruinosa Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7211 Siskiyou 4.5 mi ne Weed 1066 Comment
  SBBG6819  Castilleja pruinosa H. and M. Dearing 1939-7-1 3782 Siskiyou Salmon Mtn 1828 Comment
  UC164321  Castilleja pruinosa Geo. D. Butler 1910-5-23 1387 Siskiyou Humbug Mountain Comment
  RSA293188  Castilleja pruinosa J. P. Smith, Jennifer Whipple 1978-7-2 9986 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  RSA428400B  Castilleja pruinosa M. B. Dunkle 1944-7-15 9091 Siskiyou Siskiyou National Forest. Coastal northern California. 1768 Comment
  SFV8659  Castilleja schizotricha J. M. Tucker, L. K. Mann 1963-8-18 3766 Siskiyou Marble Mountain Wilderness Area. Saddle between Marble Mountain and southwestern ridge of Black Mountain (Black Marble Mountain). 2104 Comment
  SEINET269404 Image available Castilleja tenuis Richard J. Shaw 1963-6-11 1285 Siskiyou Along old highway 99 2 miles north of Weed 1067 Comment
  HSC103023  Catalpa bignonioides J. P. Smith 2014-6-6 13880 Siskiyou Seiad Valley 417 Comment
  CAS-BOT-BC48647  Ceanothus cordulatus Carl B. Wolf 1941-7-25 11072 Siskiyou 2 mi. E. of McCloud on Calif. Highway #89 1219 Comment
  POM282972  Ceanothus cordulatus Lyman Benson 1929-3-26 1071 Siskiyou Shoulder of Mt. Shasta Pacific Highway. Comment
  CAS-BOT-BC48390  Ceanothus cuneatus Doris K. Kildale 1929-4-27 7847 Siskiyou Cecilville, south fork of Salmon River Comment
  CAS-BOT-BC49196  Ceanothus cuneatus William A. Dayton 1913-6-14 245 Siskiyou E. Fk. of Scott River Range - Shasta Forest 1615 Comment
  CAS-BOT-BC63607  Ceanothus integerrimus Mrs. Pettibone 1894-8-8 s.n. Siskiyou Upper Soda Springs. Comment
  HSC27671  Ceanothus integerrimus Carl W. Mize 1972-6-8 27 Siskiyou Along main trail near Deer Lick Creek 351 Comment
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Feb 21 2013
  HSC43473  Ceanothus prostratus Maralyn O'Meara 1974-5-25 385 Siskiyou Near junction of Rd. 8 and French Creek Rd. 1280 Comment
  UC375365  Ceanothus prostratus Geo. D. Butler 1909-6-23 903 Siskiyou foothills of Goosenest Mountain Comment
  CAS-BOT-BC52172  Ceanothus pumilus Herbert L. Mason 1947-5-17 14760 Siskiyou Five miles south of Callahan, on Scott Mountain road Comment
  JEPS89111  Ceanothus tomentosus L. N. Lorenzen 1920-6-9 Siskiyou Sisson 1127 Comment
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May 9 2008
  JEPS42159  Ceanothus velutinus L. N. Lorenzen 1920-7-19 Siskiyou Sisson Comment
  RSA12597  Ceanothus velutinus Carl B. Wolf 1934-7-6 5989 Siskiyou 3 mi. from Mt. Shasta City on Wagon Camp Road. SW slope of Mt. Shasta. 1220 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
  HSC2177  Centromadia fitchii L. C. Wheeler 1934-10-6 3309 Siskiyou Shasta Valley 2 mi. SE of Yreka 854 Comment
  HSC103178  Cerastium arvense subsp. strictum Dana York 2011-9-8 3088 Siskiyou Klamath National Forest, slopes of Kings Castle 2175 Comment
  CDA3359  Cerastium dichotomum J. Di Tomaso 2002-5-17 s.n. Siskiyou 8 miles northeast of Montague. On York Road, 300 m east of intersection with Mulloy Road. 0 Comment
  HSC504  Cerastium fontanum subsp. vulgare William J. Ferlatte 1967-6-27 529 Siskiyou Big Flat, between campground and S Fork of the Salmon River 1524 Comment
  HSC68020  Cerastium fontanum subsp. vulgare J. P. Smith, Steve Selva 1970-6-16 4037 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1159 Comment
  HSC18568  Cercocarpus ledifolius R. C. Wunner 1965-7-15 392 Siskiyou Lava Beds NM, Indian Wells near N Prefab 1433 Comment
  UC1733685  Cercocarpus ledifolius Frank Gould, Kay H. Beach 1940-5-16 1253 Siskiyou about 11 mi W of Mt. Hebron ( summit of Bald Mountain grade) Comment
  CAS-BOT-BC148520  Cercocarpus ledifolius var. ledifolius Elmer I. Applegate 1935-6-7 9407 Siskiyou Indian Well, Lava Beds National Monument Comment
  CAS-BOT-BC148522  Cercocarpus ledifolius var. ledifolius Wm. Bridge Cooke 1938-8-23 11574 Siskiyou Upper end of Shastina Lava Park 2438 Comment
  JEPS34205  Chaenactis douglasii var. douglasii W. L. Jepson 1940-6-23 20005 Siskiyou n of Mt. Shasta (Andesite sta.) 975 Comment
  UC173222  Chaenactis suffrutescens Katharine Brandegee 1887-7-1 Siskiyou Edgewood Comment
  SBBG16538  Chamaesaracha nana D. Myrick 1961-6-19 265 Siskiyou rd to Mt Shasta Ski Bowl 1828 Comment
  SD46659  Chamaesaracha nana E. K. Balls, L. W. Lenz 1956-6-18 21802 Siskiyou 1.5 mi. e. of McCloud, State Hwy. 89, roadside 1006 Comment
  UC618797  Chamerion angustifolium subsp. circumvagum W. Bridge Cooke 1938-7-22 11329 Siskiyou Sisson Southern Trail Mount Shasta Comment
  CAS-BOT-BC68236  Cheilanthes gracillima W. R. Dudley 1899-8-9 s.n. Siskiyou Black Butte Comment
  RSA237844  Cheilanthes gracillima Frederick W. Oettinger 1968-8-5 405 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
  CAS-BOT-BC68219  Cheilanthes gracillima J. H. Thomas 1954-5-14 4173 Siskiyou Salmon Mountains, Klamath National Forest - Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, 1219 Comment
  RSA577148  Cheilanthes gracillima L. C. Wheeler 1934-8-2 3021 Siskiyou Head Jaynes Canyon, Siskiyou Mountains 2073 Comment
  UC922663  Cheilanthes gracillima Annie M. Alexander and Louise Kellogg 1948-9-8 5600 Siskiyou top of grade between Sawyers Bar and Etna; Siskiyou Mts 1737 Comment
  HSC92340  Chenopodium atrovirens Jennifer Whipple 1977-8-5 2189 Siskiyou Near Little Crater Lake 2195 Comment
  CDA3019  Chenopodium chenopodioides R. Pederson, G. Pederson 1979-8-15 Siskiyou Lower Klamath National Wildlife Refuge. Comment
  JEPS83881  Chimaphila menziesii Wayne Roderick July 1976 Siskiyou vicinity of Cook & Green Pass; Siskiyou Mts. 1463 Comment
  CAS-BOT-BC452269  Chimaphila umbellata Dr. E. B. Copeland 1903-8-15 s.n. (distributed as C.F. Baker's 3828 ) Siskiyou Mt. Shasta 1828 Comment
  HSC73212  Chimaphila umbellata Gail Newton 1980-6-20 499 Siskiyou Near Bald Mtn. 1097 Comment
  POM146273  Chimaphila umbellata subsp. occidentalis J. B. Feudge 1927-7-22 1728 Siskiyou Trail to Mt. Eddy. 1128 Comment
  CDA3723  Chorispora tenella D. R. Hill 1961-5-17 Siskiyou 1 mile northwest of Gazelle. 0 Comment
  CAS-BOT-BC39662  Chorispora tenella T. C. Fuller 1970-3-24 s.n. Siskiyou Juvenile Hall, south of junction of Annie and State Streets, Yreka. Comment
  CAS-BOT-BC36378  Chrysolepis chrysophylla Marion Ownbey; Fred G. Meyer 1940-7-7 2213 Siskiyou Cayenne Ridge, Marble Mountain Comment
  CAS-BOT-BC36387  Chrysolepis chrysophylla W. R. Dudley 1907-8-20 s.n. Siskiyou Along Salmon River above mouth of trail creek Comment
  SEINET13952977 Image available Chrysolepis chrysophylla F. J. Hermann 1972-1 24813 Siskiyou Rocky slope in open white fur woods on Sawyer's Bar Rd., alt 6,000 ft., 9 miles southwest of Etna. 0 Comment
  CDA15533  Chrysolepis chrysophylla var. chrysophylla G. F. Hrusa 1998-7-5 14701 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.8. Comment
  JEPS24624  Chrysolepis sempervirens Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6777 Siskiyou 2.3 mi above town of Mt. Shasta (Sisson) (along Everitt Memorial Highway to Panther Meadow, sw base of Mt Shasta); Mt. Shasta, Everitt Memorial Highway 1219 Comment
  SBBG1291  Chrysolepis sempervirens H. and M. Dearing 1948-9-12 6736 Siskiyou Mt Shasta Comment
  CDA14222  Chrysothamnus nauseosus subsp. albicaulis G. F. Hrusa 1997-9-18 14104 Siskiyou Summit of Pass between Calahan & Gazelle, W of Mountain House. Comment
  SEINET2030003 Image available Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose 1941-8-28 41427 Siskiyou Dorris 1292 Comment
  JEPS15739  Cicuta douglasii Willis L. Jepson July, 1894 14231 Siskiyou by stage-road n of Sisson (Mount Shasta); Mount Shasta Comment
  CAS-BOT-BC190007  Cinna latifolia John Thomas Howell 1939-8-6 15094 Siskiyou Marble Mountains. Spirit Lake. 1828 Comment
  RSA239060  Cinna latifolia Frederick W. Oettinger 1969-8-25 1546 Siskiyou Moist meadow west of Arrow Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  HSC19237  Circaea alpina subsp. pacifica J. O. Sawyer 1969-7-11 858 Siskiyou Ravine above C.C.C. road. 1280 Comment
  UCR51764  Cirsium andersonii Thomas W. Nelson, J. Nelson, J. P. Smith 1978-7-24 4545 Siskiyou Along State Route 3, just north of Scott Mtn summit. 1585 Comment
  CDA1134  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -B Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CDA1182  Cirsium cymosum T. C. Fuller 1960-5-24 4342 Siskiyou 1.5 mi. E/ Yreka, N/ R.R. Comment
  CDA1205  Cirsium douglasii var. breweri T. C. Fuller 1959-1 3088 -A Siskiyou 3 mi. N/ Weed; Shasta River, wet meadow just S/ Hwy 99. Comment
  HSC92673  Cirsium douglasii var. breweri Jennifer Whipple 1977-8-6 2207 Siskiyou Klamath Mtns., SW of Dobkins Lake along drainage into the lake 2104 Comment
  JEPS82110  Cirsium douglasii var. breweri Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7487 Siskiyou 6.2 mi above and sw Callahan (7 mi below and ne of road summit from Cecilville to Callahan) 1341 Comment
  CAS-BOT-BC279892  Cirsium douglasii var. breweri R. Ornduff; J. R. Swanson 1960-7-27 6271 Siskiyou About one mile north of Trinity County line on road from Scott Mountain to Trinity Center Comment
  CAS-BOT-BC288013  Cirsium occidentale var. candidissimum Lewis S. Rose 1945-6-22 45155 Siskiyou Walker, Klamath River 533 Comment
  CDA1325  Cirsium occidentale var. candidissimum T. C. Fuller 1958-6-18 1793 Siskiyou 2 mi. W of town of Klamath River. Roadside Hwy 96 above river. Comment
  RSA0070695  Cirsium occidentale var. candidissimum Geo. D. Butler 1910-6-2 1449 Siskiyou Near Yreka. Comment
  SFV5116  Cirsium occidentale var. candidissimum B. C. Templeton 1957-6-22 s. n. Siskiyou North of Yreka. Comment
  CAS-BOT-BC288767  Cirsium remotifolium John Thomas Howell 1939-8-7 15112 Siskiyou Sky High Valley, Marble Mts 1828 Comment
  CAS-BOT-BC288771  Cirsium remotifolium John Thomas Howell 1939-8-4 15033 Siskiyou Between Elk Mt and Marble River, Marble Mts Comment
  CAS-BOT-BC288776  Cirsium remotifolium H. A. Thomas; J. H. Thomas 1954-7-25 4536 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  HSC79332  Cirsium remotifolium D. H. Norris 1968-7-28 2193 Siskiyou Along Salmon River ca. 1 mi. S of Big Flat 1524 Comment
  CAS-BOT-BC286469  Cirsium scariosum John Thomas Howell 1952-6-14 28334 Siskiyou Gazelle Comment
  CDA1579  Cirsium scariosum var. robustum T. C. Fuller 1977-6-14 20216 Siskiyou Klamath Lake valley; North side of Hwy 161 (Stateline Rd.) 5.2 km. east of Hwy 97, 10.5 km. NE of Dorris. Comment
  CDA1581  Cirsium scariosum var. robustum Don Shaw 1982-7-16 s.n. Siskiyou Butte Valley; west of Dorris, east of Secret Spring Mtn. Comment
  CAS-BOT-BC228970  Cistanthe umbellata Doris K. Kildale 1929-7-20 8594 Siskiyou East spur of Preston Peak above Rockefeller Lake 1981 Comment
  CAS-BOT-BC228984  Cistanthe umbellata Alice Eastwood 1912-8-30 2016 Siskiyou Mount Eddy Comment
  HSC36771  Clarkia lassenensis J. P. Smith 1974-5-25 7413 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC20324  Clarkia lassenensis T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  HSC97706  Clarkia modesta Thomas W. Nelson, Jane Nelson 2006-7-1 9452 Siskiyou Along USFS Rd. 4319, Military Pass Rd., The Whaleback 1392 Comment
  UC1949050  Clarkia purpurea subsp. quadrivulnera Barbara Ertter with Thomas J. Delendick 1987-5-17 6972 Siskiyou W side Rt. 3 N of Callahan, 1.7 mi N of S Fk Scott River bridge Comment
  CAS-BOT-BC164969  Clarkia rhomboidea John Thomas Howell 1937-7-22 13307 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC443821  Claytonia rubra subsp. rubra A. A. Heller 1919-6-30 13286 Siskiyou Near Durney's mill, north base of Mt. Eddy 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
  UC198766  Claytonia sibirica Annie M. Alexander and L. Kellogg 1911-6-26 188 Siskiyou Jackson Lake Comment
  UCD100898  Claytonia sibirica J. M. Tucker 1974-7-28 4318 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  CAS-BOT-BC443859  Claytonia sibirica J. H. Thomas 1949-6-16 943 Siskiyou Beaver Creek Public Camp, along Beaver Creek, 5 miles north of junction of Beaver Creek and Klamath River. Klamath National Forest. Comment
  SEINET6907101  Clematis ligusticifolia M. K. Solecki, J. B. Taft 1986-9-9 2144 Siskiyou Bank of Scotty River near Indian Scotty campground; elevation 2,200 feet. 670 Comment
  HSC60116  Clinopodium douglasii M. A. Baker 1977-5-14 275 Siskiyou Karok garden in Happy Camp Comment
  HSC19264  Clintonia uniflora J. O. Sawyer 1968-6-25 319 Siskiyou Along Horse Range Creek 1829 Comment
  JEPS61604  Clintonia uniflora W. L. Jepson 1937-7-30 18547 Siskiyou Poker Flat, headwaters of Indian Creek Indian Creek; , Poker Flat 1584 Comment
  CAS-BOT-BC500954  Clintonia uniflora Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mountains Comment
  CAS-BOT-BC500961  Clintonia uniflora Lester Rowntree 1934-5-11 s.n. Siskiyou Happy Camp near Oregon-California Line Comment
  RSA184801  Clintonia uniflora Gilbert Muth 1966-7-17 401 Siskiyou Trail to lookout, Marble Mountains. 1806 Comment
  SEINET8472241  Clintonia uniflora G. D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek. Comment
  CAS-BOT-BC238060  Collinsia Alice Eastwood 1921-7-28 10878 Siskiyou Medicine Lake Comment
  UC164320  Collinsia grandiflora Geo. D. Butler 1911-4-23 1226 Siskiyou Quartz Valley; damp meadow Comment
  RSA237562  Collinsia linearis Frederick W. Oettinger 1968-9-5 705 Siskiyou Near spring half way up trail from English Lake to Diamond Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1898 Comment
  JEPS66321  Collinsia parviflora L. R. Heckard with T. I. Chuang 1971-6-16 2585 Siskiyou ca 2 mi n Weed (along US Hwy 97) 1066 Comment
  UC166170  Collinsia parviflora Geo. D. Butler 1910-3-20 1133 Siskiyou hills near Yreka Comment
  HSC90174  Collinsia parviflora Andrew Enberg, Brad Penkala and Dan Scofield 1990-4-4 33 Siskiyou E side of Hwy. 3, about 8 mi. N of Scott River Ranger Station 1159 Comment
  JEPS6172  Collinsia rattanii Geo. D. Butler 1909-5-30 758 Siskiyou Hamburg rd from Yreka Comment
  POM43373  Collinsia rattanii Geo. D. Butler 1910-4-16 1188 Siskiyou Klamath River. Comment
  UC454129  Collinsia torreyi var. latifolia I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  RSA237556  Collinsia torreyi var. latifolia Frederick W. Oettinger 1969-7-11 977 Siskiyou Due west of northwest end of Hancock Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. 1951 Comment
  HSC19265  Collomia grandiflora J. O. Sawyer 1968-7-23 598 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake 1829 Comment
  RSA183688  Collomia grandiflora Gilbert Muth 1965-7-29 139 Siskiyou Marble Mts. In meadow below Marble rim Comment
  UC1034594  Collomia grandiflora Douglas Barbe 1955-7-1 67 Siskiyou 0.5 mi e Etna (at burned lumber mill); Klamath Mountains 853 Comment
  UCD118165  Collomia grandiflora J. M. Tucker 1974-7-28 4312 Siskiyou Adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  HSC29284  Collomia grandiflora Frederick W. Oettinger 1969-7-27 1078 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: NW of Little English Lake 1890 Comment
  SBBG30599  Collomia tinctoria D. Myrick 1968-6-25 2023 a Siskiyou Mountain Meadow Ranch, Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  HSC90215  Collomia tinctoria Michael P. Murray Jul 1991 3 Siskiyou Marble Mtn. Wilderness Area, E facing slope of Elk Valley 1890 Comment
  UCD118258  Collomia tinctoria Herbert L. Mason 1948-7-18 13606 b Siskiyou Grass Lake. Comment
  JEPS87635  Conyza canadensis Vernon H. Oswald and Lowell Ahart 1994-8-10 6452 Siskiyou Pilgrim Creek Rd (FS13) at creek Mud Creek (2.7 mi n of Hwy 89, ca 4.5 air mi ne of McCloud) 1097 Comment
  RSA273385  Conyza canadensis J. P. Smith, J. O. Sawyer 1972-9-14 5806 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  JEPS64338  Corallorhiza maculata W. L. Jepson July, 1894 21269 Siskiyou Sisson Comment
  UC1177929  Corallorhiza maculata Francia Chisaki and Gene B. Newcomb 1958-6-21 1146 Siskiyou on Everitt Hill road 3.5 mi e junction with Highway 99 & 89; Everitt Hill 1447 Comment
  RSA184811  Corallorhiza mertensiana Gilbert Muth 1966-7-14 398 Siskiyou Just above Marble Valley, Marble Mountains 1799 Comment
  SEINET12078269  Corallorhiza striata Unknown 1986-1 60355 Siskiyou SW of Cook and Green Pass, Kangaroo Mountain 1798 Comment
  HSC58885  Cordylanthus pilosus subsp. pilosus Marvin Butler 1971-8-11 310 Siskiyou Near Younga Valley 1403 Comment
  HSC92118  Cordylanthus tenuis subsp. pallescens T. I. Chuang, L. R. Heckard 1969-8-21 6741 Siskiyou Southwest of Black Butte, NW of Mount Shasta City 1067 Comment
  JEPS86236  Cordylanthus tenuis subsp. pallescens L. R. Heckard 1979-8-16 5157 Siskiyou n Mt. Shasta City (just sw of Black Butte, corner of old Hwy 99 and Pony Tail Dr.) 914 Comment
  RSA517292  Cordylanthus tenuis subsp. tenuis Barbara J. Ertter 1987-7-26 7325 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
  JEPS60491  Cordylanthus tenuis subsp. viscidus T. I. Chuang and L. R. Heckard 1969-8-21 6742 Siskiyou 1/2 mi w Hamburg (on Hwy 96 above the Klamath River) 426 Comment
  UC144139  Cordylanthus tenuis subsp. viscidus Geo. D. Butler 1908-8-11 25 Siskiyou near Shackelford Creek; Quartz Valley Comment
  HSC43056  Cordylanthus tenuis subsp. viscidus Ken Stillman 1976-8-24 447 Siskiyou E and N slopes of Williams Point 366 Comment
  POM250769  Cordylanthus tenuis subsp. viscidus D. D. Keck 1938-8-8 4863 Siskiyou Scott Mtns., ridge between Mill and Mule Creeks, 3 mi. S.E. of Scott mt. Lodge. 1340 Comment
  CAS-BOT-BC212274  Cornus glabrata Louis C. Wheeler 1934-7-16 2909 Siskiyou Oak Knoll R.S., Klamath Forest 670 Comment
  HSC6448  Cornus glabrata Geo. D. Butler 1908-7-1 89 Siskiyou Butler's Ranch, near Yreka. Comment
  UC166604  Cornus glabrata Geo. D. Butler 1908-8-7 84 Siskiyou bank of Lake at head of W. Fork Woolly Creek Comment
  CAS-BOT-BC212282  Cornus glabrata W. R. Dudley 1899-8-24 s.n. Siskiyou East Fork of Scott's Creek near Callahan's Comment
  UC642549  Cornus nuttallii W. Bridge Cooke 1939-8-4 13804 Siskiyou along the Sisson Southern Trail Mt. Shasta Comment
  CAS-BOT-BC210398  Cornus sericea A. A. Heller 1920-6-27 13392 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC210422  Cornus sericea L. E. Smith 1913-5-27 296 Siskiyou Weed Comment
  UC637142  Cornus sericea subsp. sericea Edward Lee 1934-8-13 1072 Siskiyou Happy Camp to Waldo (Oregon) rd. Klamath Nat'l Forest (watershed of W. Branch Indian Creek); , W. Branch Indian Creek 1371 Comment
  CAS-BOT-BC180195  Corylus cornuta subsp. californica Wm. Bridge Cooke 1940-7-12 15308 Siskiyou along creeks near the Box Canyon of the Sacramento River near Mount Shasta 914 Comment
  HSC29344  Corylus cornuta subsp. californica Frederick W. Oettinger 1968-8-23 615 Siskiyou Marble Mtn. Wilderness Area, Diamond Lake outlet spillway 1951 Comment
  HSC101719  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-6-25 13279 Siskiyou Along Lighthill Road, 0.1 mile north of Hwy. 3. 832 Comment
  HSC101768  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-9-6 13422 Siskiyou Along East Moffett Creek Road 983 Comment
  HSC101827  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-7-31 13346 Siskiyou Fence row along on Collier Way in Etna. 884 Comment
  CAS-BOT-BC290475  Crepis acuminata E. B. Babcock; G. L. Stebbins, Jr. 1936-6-11 1879 Siskiyou North slope of Mt. Shasta, on highway from Bray to Weed, about 2 miles south of Sheep Rock 1235 Comment
  CAS-BOT-BC291527  Crepis intermedia John Thomas Howell 1939-8-4 15041 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  CAS-BOT-BC291530  Crepis intermedia I. J. Condit 1911-7-13 s.n. Siskiyou Dunsmuir Comment
  HSC5449  Crepis intermedia R. C. Wunner 1965-6-22 258 Siskiyou California Lava Beds National Monument, Canby Bay. 1220 Comment
  JEPS36496  Crepis intermedia H. P. Chandler 1729 Siskiyou Shackleford Canyon Comment
  JEPS125929  Crepis monticola D. W. Taylor 1996-6-28 15756 Siskiyou Antelope Mountain, ca 8 air miles S of Yreka Comment
  UC165408  Crepis occidentalis Geo. D. Butler 1910-5-19 1365 Siskiyou Yreka Comment
  UCD77571  Crepis occidentalis Robert E. Preston 2002-6-20 1840 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope 1946 Comment
  HSC44385  Crepis occidentalis subsp. occidentalis M. A. Baker 1977-5-22 321 Siskiyou N facing slope of hill just S of Whipple Ranch 976 Comment
  CAS-BOT-BC290839  Crepis occidentalis subsp. pumila J. Grisham 1958-5-14 399 -58 Siskiyou Yreka Comment
  CAS-BOT-BC290875  Crepis pleurocarpa Alice Eastwood 1923-5-23 11925 a Siskiyou Cantara Comment
  CAS-BOT-BC290881  Crepis pleurocarpa John Thomas Howell 1939-8-2 14867 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC376478  Crepis pleurocarpa Annie M. Alexander; Louise Kellogg 1949-7-29 5890 Siskiyou Top of ridge above Sky High Lake. Sky High Valley, Marble Mountains 1920 Comment
  CDA4439  Crepis pleurocarpa Agricultural Commissioner Aug 1951 Siskiyou Macdoel. 0 Comment
  HSC76914  Crepis pleurocarpa K. T. Stillman 1976-6-26 126 Siskiyou Marble Mountain Wilderness Area; Top of pass from Bear Valley 2012 Comment
  POM230911  Crepis pleurocarpa G. Ledyard Stebbins, J. A. Jenkins 1937-7-19 2445 Siskiyou Ridge between Big Mill and Mule Creek, near road from Callahan to Carrville 1220 Comment
  JEPS22546  Crocidium multicaule George D. Butler 1909-3-7 553 Siskiyou near Yreka (upper field of Butler's Ranch) Comment
  CDA4483  Crocidium multicaule G. Deal 1965-4-2 Siskiyou Butte Valley; Highway 97 south of Dorris. 0 Comment
  UC1042564  Cryptantha flaccida John Thomas Howell 1952-6-14 28342 Siskiyou 9.5 mi from Ft. Jones (on road to Callahan) 853 Comment
  HSC63997  Cryptantha rostellata J. P. Smith 1974-5-25 7372 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  RSA610640  Cryptantha torreyana L. C. Wheeler 1935-5-26 3531 Siskiyou Yreka Creek, Siskiyou Mts. 915 Comment
  CHSC99987  Cryptogramma acrostichoides L. P. Janeway 2008-7-26 9508 Siskiyou Klamath Ranges. Between Castle Crags, Trinity Mountains, and The Eddys; about 200 m west-southeast of Heart Lake and about 0.8 km south of Castle Lake. 1901 Comment
  CAS-BOT-BC70531  Cryptogramma cascadensis Geo. B. Grant 1902-9-1 5098 Siskiyou Horse Camp, Mt. Shasta 2438 Comment
  CAS-BOT-BC80561  Cupressus bakeri W. L. Jepson 1914-8-11 5764 Siskiyou Lava [beds] Beds, s.e. Siskiyou Co. 1036 Comment
  NY16588  Cupressus bakeri J. T. Howell 1934-7-4 12386 Siskiyou Lava flow from Timbered Crater and Little Hot Springs Valley Comment
  CAS-BOT-BC85554  Cupressus macnabiana Thos. H. Harris 1951-6-1 s.n. Siskiyou On Klamath River 3 miles west of bridge on Highway 99 Comment
  UCR243141  Cuscuta campestris Rob Wilson 2010-9-8 s.n. Siskiyou Near Tulelake 1232 Comment
  HSC61606  Cycladenia humilis Ruby Van Deventer 1970-6-6 Siskiyou Lookout Mtn. Comment
  CDA38228  Cymopterus terebinthinus CDFA Staff 1959-6-5 s.n. Siskiyou Edgewood; Clint Jackson farm. 0 Comment
  CDA38229  Cymopterus terebinthinus var. californicus William J. Ferlatte 1988-6-1 s.n. Siskiyou Near Weed; Highway 97 at Big Springs Rd. Comment
  UCD77586  Cymopterus terebinthinus var. californicus Robert E. Preston 2000-6-23 1380 Siskiyou East edge of Juniper Flat, north of Yellow Butte, along A12, 2.1 mi n of Hwy 97. 1100 Comment
  SD104868  Cynoglossum occidentale Darley Howe 1979-6-26 5103 Siskiyou Military Pass Road, 19 miles east of Highway 97. 1769 Comment
  HSC103019  Cynosurus echinatus J. P. Smith 2014-6-6 13876 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  UC637068  Cyperus squarrosus Edward Lee 1934-8-11 1026 Siskiyou e. end Seiad Valley (Walker Creek); , Walker Creek (tributary of Klamath R.) 457 Comment
  CAS-BOT-BC70715  Cystopteris fragilis John Thomas Howell 1989-8-3 14975 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC185190  Cystopteris fragilis Geo. D. Butler 1910-7-9 1694 Siskiyou Shackleford Creek 1219 Comment
  UC922430  Cystopteris fragilis Annie M. Alexander and Louise Kellogg 1949-7-24 5865 Siskiyou trail to Bear Lake Paradise Lake; Marble Mts. 1920 Comment
  CAS-BOT-BC189809  Dactylis glomerata Melissa A. Berry 1957-7-1 s.n. Siskiyou Highway 97 near Hebron Summit. 1524 Comment
  CAS-BOT-BC189810  Dactylis glomerata Douglas Barbe 1955-7-1 075 Siskiyou Klamath Mountains. 1.3 mile east of Etna on the Westide Road to Callahan. 853 Comment
  CAS-BOT-BC192249  Danthonia californica Melissa A. Berry 1957-7-6 s.n. Siskiyou Heather Lake, near Salmon Mt. 2042 Comment
  HSC69133  Danthonia californica Maralyn A. Renner 1980-8-4 2231 Siskiyou Flint Valley 1390 Comment
  HSC69220  Danthonia californica Maralyn A. Renner 1980-8-31 2624 Siskiyou Twin Valley. 1494 Comment
  UC1483489  Darlingtonia californica Maralyn A. Renner 1980-7-4 1417 Siskiyou Clear Creek Trail n Trout Camp; Klamath National Forest, Preston Peak Quad. 1066 Comment
  CHSC1571  Dasiphora fruticosa V. Holt 1932-7-10 Siskiyou Mt. Eddy. 2286 Comment
  HSC76671  Dasiphora fruticosa K. T. Stillman 1976-7-22 285 Siskiyou Marble Mtn. Wilderness Area Comment
  RSA276116  Datisca glomerata Frederick W. Oettinger 1969-7-6 933 Siskiyou Up the N fork of the Salmon River 0.2 miles from the bridge in Forks of Salmon. On S side of R nearly directly across from metal erosion. Supporter along Fk of Salmon-Sawyers's Bar rd. Comment
  CHSC1457  Delphinium M. Yoder 1941-7-19 Siskiyou Castle Lake. 1981 Comment
  CAS-BOT-BC9573  Delphinium antoninum Alice Eastwood; John Thomas Howell 1937-6-26 5036 Siskiyou Salmon Mts., 10 miles SW of Etna Comment
  JEPS80580  Delphinium glaucum Gilbert Muth 1965-8-2 144 Siskiyou Marble Valley, Marble Mt. Wilderness Area 1792 Comment
  POM99878  Delphinium glaucum Geo. D. Butler 1908-8-6 353 Siskiyou Whiskey Camp Independence Creek Comment
  UC467761  Delphinium nudicaule Lewis C. Rosenbaum 1916-6-6 Siskiyou Shasta Springs Comment
  CAS-BOT-BC116165  Delphinium nuttallianum A. A. Heller 1916-6-20 12401 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1188 Comment
  UC1409278  Delphinium nuttallianum Frederick W. Oettinger 1969-7-10 955 Siskiyou base of cliff se Upper English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1950 Comment
  UC166147  Delphinium nuttallianum Geo. D. Butler 1901-6-22 901 Siskiyou Goosenest foothills Comment
  UC642522  Deschampsia atropurpurea Jason Swallen 1939-8-24 13892 Siskiyou middle cascade portion Squaw Valley Creek; Mt. Shasta, Squaw Valley Creek Comment
  HSC69102  Deschampsia cespitosa Maralyn A. Renner 1980-8-4 2228 Siskiyou Flint Valley 1390 Comment
  CAS-BOT-BC192463  Deschampsia cespitosa subsp. cespitosa Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  SJSU11325  Deschampsia cespitosa subsp. holciformis S. H. Casey 1981-7-4 1217 Siskiyou near Cook & Green Pass Seiad Creek Rd, Siskiyou Mts. c. 8 mi N of Seiad Valley 1524 Comment
  CAS-BOT-BC201636  Deschampsia danthonioides Louis C. Wheeler 1934-6-10 2674 Siskiyou Hungry Creek, Siskiyou Mts. 1097 Comment
  CAS-BOT-BC201938  Deschampsia elongata H. A. Thomas; J. H. Thomas 1954-7-24 4513 A Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  CAS-BOT-BC201947  Deschampsia elongata Louis C. Wheeler 1934-6-3 2629 Siskiyou Cherry Flat, Klamath River, Siskiyou Mts. 518 Comment
  HSC26550  Deschampsia elongata J. P. Smith, Steve Selva 1970-7-17 4464 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC92279  Deschampsia elongata Jennifer Whipple 1978-10-6 2409 Siskiyou Primarily N facing slopes in the Eddy Creek drainage. 2317 Comment
  UCD63457  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3445 Siskiyou 11 miles north of Happy Camp, rd. to Grants pass, banks of Indian Creek. Comment
  RSA47781  Descurainia pinnata subsp. filipes Roxana S. Ferris, Laura Lorraine 11829 Siskiyou Gazelle Mountain grade, road between Callahan and Gazelle. 1500 Comment
  SBBG16474  Dicentra formosa D. Myrick 1961-6-21 312 Siskiyou Deer Camp Rd above Oak Knoll Ranger Stn on Klamath River 1828 Comment
  UC455332  Dicentra formosa I. J. Condit 1911-7-15 Siskiyou Shasta Springs to McCloud (tollroad) Comment
  UCD95492  Dicentra formosa Rolf Y. Berg 1964-7-15 8264 Siskiyou Seiad Valley. W of Cook and Green Pass and above Lily Pad Lake. Comment
  CAS-BOT-BC502224  Dichelostemma ida-maia Geo. D. Butler 1909-7-15 889 Siskiyou Salmon Range 1828 Comment
  HSC22859  Dichelostemma multiflorum J. O. Sawyer 1969-6-12 910 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  CAS-BOT-BC291011  Dieteria canescens var. shastensis Louis C. Wheeler 1934-8-24 3218 Siskiyou Trapper Creek, Siskiyou Mts. 1859 Comment
  CHSC102559  Dieteria canescens var. shastensis L. P. Janeway 2009-8-4 9894 Siskiyou High Cascade Range. Flat open area along Military Pass Road (A43N19) 3.4 km east of Military Pass, 6.4 air km northwest of Ash Creek Butte. 1804 Comment
  UC75817  Dieteria canescens var. shastensis Milo S. Baker 1898-8-1 474 Siskiyou Medicine Lake Comment
  HSC103635  Dieteria canescens var. shastensis Thomas W. Nelson, Jane Nelson 1983-8-12 7591 Siskiyou Along Forest Service Rd. 40N08, ~ 1 mi. from junction with State Route 3 at Scott Mountain summit 1646 Comment
  HSC92724  Dieteria canescens var. shastensis Jennifer Whipple 1976-7-24 1548 Siskiyou Dobkins Lake Drainage on East-facing slopes above Dobkins Lake 2256 Comment
  UC562939  Dieteria canescens var. shastensis Elmer I. Applegate 1923-8-20 3900 Siskiyou Ranger Station w end Medicine Lake (w end Medicine Lake) 1981 Comment
  CAS-BOT-BC153649  Diplacus jepsonii Elmer I. Applegate 1923-8-19 3887 Siskiyou Medicine Lake Comment
  CAS-BOT-BC153457  Diplacus layneae Geo. D. Butler 1910-6-19 1585 Siskiyou Goosenest foothills 1524 Comment
  CAS-BOT-BC153738  Diplacus nanus Wm. Bridge Cooke 1940-6-4 15005 Siskiyou Along the Bolam Road Comment
  CDA6688  Dipsacus fullonum T. C. Fuller 1959-7-9 2911 Siskiyou West of Highway 99, north limits Mt. Shasta City. 0 Comment
  CAS-BOT-BC136093  Dodecatheon alpinum Wm. Bridge Cooke 1940-6-6 15069 Siskiyou Little meadow at the outlet of Castle Lake. 1676 Comment
  HSC92946  Dodecatheon alpinum Jennifer Whipple 1976-6-12 972 Siskiyou Wagon Creek drainage near Wagon Creek 2195 Comment
  HSC92948  Dodecatheon alpinum Jennifer Whipple 1977-7-20 1985 Siskiyou N slopes of Mount Eddy 2500 Comment
  HSC4469  Dodecatheon jeffreyi William J. Ferlatte 1966-6-22 72 Siskiyou Josephine Lake Basin, base of cliff 1677 Comment
  CAS-BOT-BC41755  Draba howellii John Thomas Howell 1937-7-24 13417 Siskiyou Salmon-Trinity Alps. Caribou Basin. 2286 Comment
  HSC44974  Draba howellii J. O. Sawyer, E. Cope 1977-6-20 2974 Siskiyou Along W slopes of Bear Mtn. 1829 Comment
  CAS-BOT-BC41762  Draba howellii Gilbert Muth 1965-8-4 s.n. Siskiyou Marble Mountains. Comment
  UC61197  Draperia systyla W. A. Setchell, C. C. Dobie 1902-7-22 Siskiyou McCloud River Mount Shasta (The Bend) Comment
  CAS-BOT-BC401590  Drosera rotundifolia Wm. Bridge Cooke 1939-7-21 13725 Siskiyou Mount Shasta. In the Wagon Camp bog Comment
  HSC18930  Drymocallis glandulosa J. O. Sawyer 1969-7-3 1043 Siskiyou Above Lipstick Lake 1951 Comment
  RSA237854  Drymocallis glandulosa Frederick W. Oettinger 1969-8-5 1209 Siskiyou Dry hillside, Willow Spring on English Lake trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  JEPS47209  Drymocallis glandulosa var. glandulosa Geo. D. Butler 1909-5-31 779 Siskiyou Humbug Comment
  SBBG30527  Drymocallis glandulosa var. glandulosa D. Myrick 1968-6-25 2019 Siskiyou Mountain Meadow Ranch, Big Flat; Coffee Crk 1524 Comment
  UC726533  Drymocallis glandulosa var. reflexa A. A. Heller 1916-6-20 12399 Siskiyou ne base Mt. Eddy; ne base of Mt. Eddy, Metcalf's Ranch 1188 Comment
  UC1409376  Drymocallis lactea var. austiniae Frederick W. Oettinger 1969-7-13 1002 Siskiyou moist meadow n Upper English Lake (High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1950 Comment
  CAS-BOT-BC159287  Drymocallis lactea var. lactea Wm. Bridge Cooke 1938-6-24 11070 Siskiyou MacBridge Springs - Mount Shasta 1524 Comment
  CAS-BOT-BC159296  Drymocallis lactea var. lactea Alice Eastwood 1921-7-25 10843 Siskiyou Bigelows, McCloud River Comment
  CAS-BOT-BC158412  Drymocallis pseudorupestris var. saxicola Wm. Bridge Cooke 1939-8-22 13829 Siskiyou Along Horse Camp Creek Comment
  JEPS73747  Echinochloa crus-galli Geo. D. Butler 1908-8-28 490 Siskiyou near Oro Fino (Wright & Fletcher's Ranch); Wright & Fletcher's Ranch Comment
  UC1265302  Eleocharis macrostachya Frederick W. Oettinger 1968-9-5 716 Siskiyou high lake basins in vicinity of English Peak (inlet stream to Hancock Lake); Western Siskiyou Co., Salmon Mountains, Marble Mountain Wild 1935 Comment
  RSA238944  Eleocharis quinqueflora Frederick W. Oettinger 1969-8-19 1453 Siskiyou Along the ridge between David Mountain and Abbotts Lake Basin and on old Tanners Peak trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  UC1265457  Eleocharis suksdorfiana Frederick W. Oettinger 1969-8-19 1453 Siskiyou ridge between David Mountain and Abbotts Lake Basin Salmon Mountains, Marble Mountain Wilderness Area (high lakes basins in the vicinity of English Peak) 1905 Comment
  CAS-BOT-BC451553  Elodea canadensis Edward Lee 1934-8-12 1239 Siskiyou South side of the Klamath River near the mouth of Walker Creek (east end of Seiad Valley) 426 Comment
  UC1037161  Elymus X aristatus Leo Whitney 1935-7-15 3470 Siskiyou stream near Bullseye Lake (2 mi se of Medicine Lake) Comment
  HSC100300  Elymus caput-medusae J. P. Smith, & J. O. Sawyer 2011-6-25 13259 Siskiyou At the junction of Hwy. 3 and Callahan - Gazelle Road. 834 Comment
  UC1265447  Elymus elymoides subsp. elymoides Frederick W. Oettinger 1968-8-8 455 Siskiyou Crapo Meadow Salmon Mountains, Marble Mountain Wilderness Area (w Siskiyou Co., high lake basins in vicinity of English Peak) 2164 Comment
  HSC10945  Elymus elymoides var. elymoides D. M. Thomson 1965-6-12 79 Siskiyou Lava Beds National Monument, Hovey Point, along N boundary Comment
  HSC69221  Elymus glaucus Maralyn A. Renner 1980-8-31 2623 Siskiyou Twin Valley. 1494 Comment
  UC224203  Elymus glaucus E. Palmer 1892-1 2652 Siskiyou near Mt. Shasta Comment
  CAS-BOT-BC206596  Elymus glaucus subsp. glaucus Louis C. Wheeler 1934-8-14 3143 Siskiyou E end White Mt., Klamath National Forest 1767 Comment
  HSC30580  Elymus glaucus subsp. glaucus Frederick W. Oettinger 1969-8-18 1423 Siskiyou Marble Mountain Wilderness Area, N end of Horse Range Lake 1822 Comment
  RSA783702  Elymus riparius Barbara L. Wilson, Richard Brainerd 2010-8-4 16208 Siskiyou Forest Service road 41N26, the Eddy Creek Road, 2.8 mi above junction with Old Stagecoach Road (study site 11). 1280 Comment
  HSC45888  Elymus trachycaulus subsp. trachycaulus Laura Witherspoon 1978-8-15 80 Siskiyou Klamath National Forest. 2.9 miles S of La Honda Well and Forest Service Rd. 6Q01 (Tennant Rd.) 1442 Comment
  CHSC88404  Elytrigia repens Jenny Marr 1993-7-1 163 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1408899  Epilobium anagallidifolium Frederick W. Oettinger 1969-9-2 1595 b Siskiyou meadow on n side of peak Salmon Mountains, Marble Mountain Wilderness Area, English P 2164 Comment
  RSA68920  Epilobium angustifolium var. intermedium A. E. Culbertson 1943-8-1 37 Siskiyou Castle Lake. 14 miles s.w. of Mt. Shasta on n side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles at its headwaters to the west. 1657 Comment
  HSC103904  Epilobium canum subsp. latifolium Dana York, Richard Helliwell 2010-9-11 3015 Siskiyou Six Rivers National Forest. Northeast slope of Broken Rib Mountain 1671 Comment
  HSC49652  Epilobium ciliatum subsp. ciliatum J. P. Smith, Steve Selva 1970-7-17 4443 Siskiyou 915 Comment
  POM171580  Epilobium ciliatum subsp. ciliatum Doris K. Kildale 1928-7-25 5862 Siskiyou Klamath River between Gottville and Browns Resort 579 Comment
  JEPS109702  Epilobium ciliatum subsp. glandulosum Dean W. Taylor 2002-7-20 18262 Siskiyou Forest Road 17 ca. 4.9 road miles (above) junction with Stewart Springs Road, Parks Creek 1737 Comment
  UC422955  Epilobium ciliatum subsp. glandulosum Milo S. Baker Aug. 1897 141 Siskiyou Payne's Springs 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
  UC164267  Epilobium densiflorum Geo. D. Butler 1908-7-17 160 Siskiyou along creek near Yreka Comment
  UC1096797  Epilobium glaberrimum subsp. glaberrimum H. K. Wagnon 1957-8-11 1711 Siskiyou along crk. 1 mi n junction with Military Pass Rd; North Coast Ranges, Mt. Shasta, Ash Cr. Comment
  POM258627  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1940-7-5 15231 Siskiyou Mt. Shasta: in the meadow at Bear Springs. 1524 Comment
  HSC81511  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1980-7-19 6202 Siskiyou Along USFS Rd. 40N17 1.0 mi. from junction with Callahan-Cecilville Rd. 1585 Comment
  POM251082  Epilobium hallianum W. Bridge Cooke 1938-7-15 11208 Siskiyou Wagon Camp spring, Mt. Shasta. 1738 Comment
  RSA237391  Epilobium lactiflorum Frederick W. Oettinger 1969-9-2 1595 -a Siskiyou On the cool north side of English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  HSC77154  Epilobium luteum L. P. Janeway 1983-9-11 679 Siskiyou Along creek edge just W of Poker Flat along the trail to Twin Valley 1524 Comment
  HSC43866  Epilobium minutum Maralyn O'Meara 1974-5-25 377 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  HSC49634  Epilobium minutum J. P. Smith 1973-5-5 6451 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  HSC60820  Epilobium minutum Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  SEINET10815063 Image available Epilobium paniculatum Edward L. Greene 1876-8-28 Greene 1029 Siskiyou Near Etna. Comment
  CAS-BOT-BC171869  Epilobium septentrionale Annie M. Alexander; Louise Kellogg 1949-7-29 5891 Siskiyou Top of ridge above Sky High Lake, Sky High Valley, Marble Mountains 1920 Comment
  CAS-BOT-BC58021  Equisetum Melissa A. Berry 1957-7-8 s.n. Siskiyou N. Fork of the Salmon River. 609 Comment
  SEINET182276 Image available Equisetum hyemale L. C. Wheeler 1934-7-12 2902 Siskiyou Cottonwood Creek Siskiyou Mtns 1220 Comment
  HSC46758  Equisetum laevigatum William J. Ferlatte 1969-6-25 1179 Siskiyou Big Flat, near campground 1524 Comment
  HSC26547  Eragrostis cilianensis J. P. Smith, Steve Selva 1970-7-16 4402 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  UCD63091  Eragrostis curvula Beecher Crampton 1969-6-19 8465 Siskiyou 3 miles south of Yreka, Interstate Hwy. 5 Southbound. Comment
  HSC4916  Eremogone congesta J. O. Sawyer 1968-6-25 298 Siskiyou NE of N Horse Range Lake 2012 Comment
  HSC68335  Eremogone congesta Maralyn A. Renner 1980-6-26 1233 Siskiyou SE edge of Flint Valley. 1390 Comment
  CAS-BOT-BC168334  Eremogone congesta var. congesta Alice Eastwood 1912-8-30 s.n. Siskiyou Mount Eddy Comment
  CHSC99710  Eremogone congesta var. suffrutescens L. P. Janeway 2008-7-22 9450 Siskiyou Klamath Ranges. Between the Trinity Mountains, Castle Crags, and The Eddys; top of slope overlooking Little Castle Lake from the southwest; 0.6 air km southwest of Little Castle Lake. 1896 Comment
  CAS-BOT-BC286697  Ericameria bloomeri Walter Knight; Irja Knight 1979-9-9 3433 Siskiyou On Evertt Memorial Highway. Mt. Shasta Comment
  RSA236428  Ericameria greenei D. V. Hemphill 1972-8-22 2073 Siskiyou English Peak, Salmon Mts. 2165 Comment
  UC1539983  Ericameria nauseosa M. Mitchell 1936-5-19 37 Siskiyou 1 1/4 mi w of Caldwell Butte; Lava Beds National Park 1417 Comment
  CHSC105279  Ericameria nauseosa var. oreophila Lowell Ahart; John Dittes 2010-7-30 16970 Siskiyou Shasta Big Springs Lake, 2.6 miles (air) northwest of Big Springs Lake, 3.9 miles (air) southeast of Grenada, 6.3 miles (air) northwest of Dwinnel Dam. 778 Comment
  HSC29198  Ericameria nauseosa var. speciosa Frederick W. Oettinger 1968-8-16 533 Siskiyou Marble Mtn. Wilderness Area: Near summit of 'Little Medicine Mtn.' (N of Hancock Lake) 2104 Comment
  HSC46938  Ericameria nauseosa var. speciosa William J. Ferlatte 1976-9-22 1853 Siskiyou Grouse Ridge along Yellow Rose Mine Trail 1860 Comment
  UC205552  Ericameria nauseosa var. speciosa H. M. Hall 1919-10-3 10985 Siskiyou near Yreka Hills Comment
  CAS-BOT-BC294403  Ericameria parryi var. latior Alice Eastwood 1912-8-30 2079 Siskiyou Mount Eddy Comment
  UC1303140  Ericameria parryi var. latior A. A. Heller 1927-8-1 14438 Siskiyou near the town Mt. Shasta (along the base of Spring Hill, on the headwater of the Scramento River); Sacramento River, Spring Hill Comment
  CAS-BOT-BC293377  Erigeron acris var. kamtschaticus Wm. Bridge Cooke 1939-8-24 13911 Siskiyou Mount Shasta. On the east red ridge west of and above Panther Creek Meadows Comment
  POM253603  Erigeron aliceae C. L. Hitchcock, J. S. Martin 1939-7-6 5202 Siskiyou Siskiyou Mts., 2 miles within California boundary on Takilma-Happy Camp Road 1555 Comment
  CAS-BOT-BC294495  Erigeron bloomeri var. bloomeri John Thomas Howell 1939-8-4 15052 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  JEPS104816  Erigeron cervinus Dean W. Taylor 1996-7-12 15789 Siskiyou Salmon Mountains; Patterson Creek drainage (about 5 air miles west of Etna); Klamath National Forest 1371 Comment
  JEPS84321  Erigeron cervinus L. R. Heckard with J. Hickman et al. 1986-7-17 6477 Siskiyou above and w of Lily Pad Lake (ca 5 mi n of town of Seiad Valley) Comment
  CAS-BOT-BC297108  Erigeron compositus Wm. Bridge Cooke 1940-7-26 15384 Siskiyou Vicinity of Merriam's timberline on the west side of Shastina, Mount Shasta 2895 Comment
  HSC76670  Erigeron compositus K. T. Stillman 1976-7-22 286 Siskiyou Marble Mtn. Wilderness Area Comment
  CAS-BOT-BC297185  Erigeron concinnus var. concinnus Geo. D. Butler 1910-6-3 1471 Siskiyou Quartz Valley Comment
  CAS-BOT-BC300431  Erigeron elegantulus L. E. Smith 1915-7-29 s.n. Siskiyou Bray Comment
  JEPS47722  Erigeron filifolius W. B. and V. G. Cooke 1966-7-16 37217 Siskiyou above Bolam Station (shoulder of old logging road); Mt. Shasta 1676 Comment
  UCD77640  Erigeron glacialis var. glacialis Robert E. Preston 2001-7-21 1725 a Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W ne 1/4 Section 22 2066 Comment
  OBI55472  Erigeron inornatus David J. Keil, Kathleen Keil 1992-7-21 23534 Siskiyou Klamath NF SE of Callahan. forest Rd 40N08, 1.7 mi W of Scott Mtn Rd (hwy 3) Comment
  CHSC71857  Erigeron inornatus var. inornatus Vernon H. Oswald; Lowell Ahart 1998-9-8 9609 Siskiyou USFS 3 ca. 0.8 mi west of Julia Glover Flat, ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir, ca. 2 air mi northwest of Indian Spring Mtn. Roadside. 1127 Comment
  JEPS89705  Erigeron klamathensis Dean William Taylor 1972-7-3 1599 Siskiyou at Cook and Green Pass Cook and Green Pass 1371 Comment
  JEPS41494  Erigeron klamathensis W. L. Jepson 2071 Siskiyou rocky cliffs on the knife's edge the ridge; Western Siskiyou, Devil's Backbone Comment
  HSC34354  Erigeron petrophilus var. viscidulus J. P. Smith, J. O. Sawyer 1973-8-14 7305 Siskiyou On trail from Campbell Lake to Cliff Lake 1829 Comment
  HSC41051  Erigeron petrophilus var. viscidulus J. O. Sawyer 1969-7-9 1108 Siskiyou Dry slope above Little Duck Lake. Grandiorite 2012 Comment
  CAS-BOT-BC300094  Erigeron philadelphicus J. H. Thomas 1949-6-16 945 Siskiyou 1/4 mile north of Beaver Creek Public Camp, 5 miles north of junction of Beaver Creek and Klamath River. Klamath National Forest Comment
  RSA715773  Erigeron philadelphicus L. Ahart, John Dittes 2005-6-10 12082 Siskiyou South edge of a water ditch, pipe discharge, irrigated pasture, about 90 yards east of the pump house along the Shasta River, about 1.9 air miles S of Highway 99/97 cutoff, about 6 air miles ESE of Grenada 777 Comment
  UC455839  Erigeron philadelphicus var. philadelphicus I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  UC1211908  Eriodictyon californicum Roy L. Taylor 1960-6-12 4447 Siskiyou 1 mi w of jtn of Hwy 96 (Klamath River Rd.) and Hwy 99 n Yreka (above Klamath River); above Klamath River Comment
  HSC60821  Eriogonum compositum Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  CAS-BOT-BC250063  Eriogonum compositum var. compositum Lillian Mott 1976-7-4 28 LM76 Siskiyou Cook and Green Pass road north of Seiad Valley at waterfowl 1463 Comment
  HSC30409  Eriogonum compositum var. compositum Frederick W. Oettinger 1968-8-23 614 Siskiyou Marble Mtn. Wilderness area, Diamond Lake spillway on way to English Lake 2058 Comment
  HSC19482  Eriogonum diclinum J. O. Sawyer 1969-6-2 1008 Siskiyou Summit above Albert Lake 2256 Comment
  HSC49939  Eriogonum diclinum G. L. Clifton, Ground 1978-7-30 2437 Siskiyou Near Big Rock 2059 Comment
  UC1475704  Eriogonum diclinum Clifton and Ground 1978-7-30 2450 Siskiyou near Alex Hole (close to the town of Klamath River); Condrey Mt. Quadrangle 2122 Comment
  JEPS84298  Eriogonum elatum var. elatum L. R. Heckard with J. Hickman et al. 1986-7-17 6488 Siskiyou ca. 3.5 mi n on Oak Knoll Ranger Station road to Condrey Mt. Hwy 96 (Walker) 850 Comment
  JEPS2577 Image available Eriogonum elatum var. villosum Geo. D. Butler 1910-6-26 1606 Siskiyou near Yreka; ; Near Yreka, Siskiyou Co. Comment
  JEPS125891  Eriogonum libertini Dean W. Taylor Jun 181996 15694 Siskiyou Shasta Trinity National Forest; Scott Mountains, bordering Shasta Valley, hillslopes about 4 miles S of Gazelle. Comment
  RSA279582  Eriogonum luteolum James L. Reveal, Mark L. Reveal 1975-8-15 3949 Siskiyou Siskiyou Mountains, Klamath National Forest, along the Daggett Creek Road on the west slope of Cedar Cove, about 0.5 mile east of the Forest Service Road 46N52, about 2.2 miles north of California Highway 96 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
  UC6357  Eriogonum marifolium Wm. H. Brewer 1862-9-13 1396 Siskiyou Mt. Shasta 2133 Comment
  UC849524  Eriogonum marifolium L. E. Smith 1915-1 Siskiyou Mt. Shasta Comment
  UCD100402  Eriogonum marifolium R. Tofsrud; J. M. Tucker 1948-8-2 1761 Siskiyou Panther Meadows, south slope of Mt. Shasta. 2407 Comment
  CHSC110785  Eriogonum marifolium var. cupulatum Dean Wm. Taylor 2012-8-22 21300 Siskiyou Mount Shasta. Elk Flat, easterly flanks of Mt. Shasta, Shasta-Trinity National Forest. 1241 Comment
  HSC67822  Eriogonum marifolium var. marifolium J. O. Sawyer, J. Cole 1980-7-20 3771 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  CAS-BOT-BC261624  Eriogonum nudum var. nudum John Thomas Howell 1939-8-2 14889 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CDA12232  Eriogonum nudum var. nudum G. F. Hrusa 1993-8-14 11402 Siskiyou Region of Little Grayback Mountain; Summit of pass between Happy Camp, Ca. & O' Brien, Oregon. Just on Ca. side of state boundary. Comment
  HSC42993  Eriogonum nudum var. nudum J. P. Smith, Steve Selva 1970-7-15 4365 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  UC1483512  Eriogonum nudum var. nudum Maralyn A. Renner 1980-7-24 2119 Siskiyou about 1/4 mi sw, on Pacific Crest Trail Cook and Green Pass; Klamath National Forest, Seiad Valley Quad. 1493 Comment
  HSC43404  Eriogonum nudum var. nudum K. T. Stillman 1976-7-21 278 Siskiyou Marble Mtn. Wilderness Area, ridge from Back Mtn. to Jump Off Point 2043 Comment
  CAS-BOT-BC105081  Eriogonum nudum var. pubiflorum R. C. Wenk 2008-7-24 938 Siskiyou Kangaroo Lake, S of the Gazelle-Callahan Rd. Top of ridge S of the lake 1981 Comment
  HSC17324  Eriogonum nudum var. pubiflorum C. B. Wolf 1927-8-26 1024 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  JEPS56649  Eriogonum nudum var. pubiflorum W. L. Jepson 1940-6-22 19978 Siskiyou near Hawkinsville; Shasta River 792 Comment
  JEPS81652  Eriogonum ovalifolium var. purpureum L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2307 Siskiyou along road to Hoffman Mill 1.2 mi from U.S. 97 ((about 3 mi ne of Little Deer-The Whaleback Quad.)) 1569 Comment
  UC726561  Eriogonum ovalifolium var. purpureum A. A. Heller 1938-7-13 15272 Siskiyou meadow about 1 mi s Bray 1402 Comment
  RSA233648  Eriogonum pyrolifolium var. pyrolifolium Robert F. Thorne, Fred Oettinger 1969-8-10 38984 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  NY323542  Eriogonum siskiyouense E. L. Greene 1876-8-1 1002 Siskiyou On Scott Mountain 2438.4 Comment
  CAS-BOT-BC262728  Eriogonum sphaerocephalum var. halimioides L. E. Smith 1913-7-1 446 Siskiyou Hilt Comment
  CAS-BOT-BC271963  Eriogonum sphaerocephalum var. halimioides M. K. Curran 1887-7-1 s.n. Siskiyou Gazelle Comment
  UC164052  Eriogonum sphaerocephalum var. halimioides Geo. D. Butler 1910-5-27 1428 Siskiyou hill near Yreka Comment
  RSA60792  Eriogonum strictum subsp. proliferum Dorothy Parker 1948-7-25 153 Siskiyou Schoolhouse Hill, Plowman's Valley. 1154 Comment
  CAS-BOT-BC262754  Eriogonum strictum var. anserinum L. E. Smith 1913-6-2 327 Siskiyou Unspecified Comment
  CAS-BOT-BC262766  Eriogonum strictum var. anserinum Dorothy Parker 1967-6-20 s.n. Siskiyou Scott Valley 914 Comment
  JEPS84304  Eriogonum ternatum L. R. Heckard with J. Hickman et al. 1986-7-17 6476 Siskiyou s Lily Pad Lake (trail up Kangaroo Peak; ca. 5 mi n of the town of Seiad Valley); Kangaroo Peak 1800 Comment
  UC1483469  Eriogonum ternatum Maralyn A. Renner 1980-8-7 2431 Siskiyou ridge s Preston Peak; Klamath National Forest, Preston Peak Quad. 1950 Comment
  CAS-BOT-BC267930  Eriogonum umbellatum Dr. E. B. Copeland 1903-7-6 3496 Siskiyou Hornbrook Comment
  UC203863  Eriogonum umbellatum var. argus A. A. Heller 1914-8-28 11742 Siskiyou e side of Mt. Eddy Mt. Eddy 2194 Comment
  CHSC34257  Eriogonum umbellatum var. humistratum J. D. Jokerst; M. D. Huffine 1981-9-11 1502 Siskiyou Summit of rd 17 at the Siskiyou Trinity County line where it crosses the Pacific Crest Trail. North of the road. Comment
  HSC103423  Eriogonum umbellatum var. humistratum Thomas W. Nelson, Jane Nelson 1979-6-15 4812 Siskiyou Along Forest Service Rd. 40N08, Carmen Lake Rd., .6 mi. from junction with State Route 3 1646 Comment
  UC83633  Eriogonum umbellatum var. modocense Dr. E. B. Copeland 1903-7-6 3496 Siskiyou Hornbrook Comment
  RSA165616  Eriogonum umbellatum var. nelsoniorum Clare B. Hardham 1961-6-30 7995 Siskiyou Near White Mt. Comment
  SBBG14884  Eriogonum umbellatum var. polyanthum A. I. Richardson 1961-6-8 17 Siskiyou near Big Springs Rd N of jct with Hwy 97 914 Comment
  LA105219  Eriogonum umbellatum var. umbellatum Steve Morgan; 1987-7-28 sn Siskiyou Mount Shasta, Shasta Trinity National Forest, McGinnis Springs, 5 mi. NW of McCloud Comment
  JEPS56124  Eriogonum vimineum W. L. Jepson 1940-6-23 19979 Siskiyou Yreka 822 Comment
  CHSC4723  Eriophyllum lanatum R. Carter 1966-5-15 403 Siskiyou One mile E of Calahan on N side of Callahan-Gazelle Rd., opposite a small meadow. 914 Comment
  POM302176  Eriophyllum lanatum Ynez Whilton Winblad 1941-6-20 s.n. Siskiyou Between Weed and Yreka Comment
  CAS-BOT-BC301140  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-20 12479 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  HSC67809  Eriophyllum lanatum var. achilleoides J. O. Sawyer, J. Cole 1980-7-22 3917 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  UC163891  Eriophyllum lanatum var. achilleoides Geo. D. Butler 1910-5-23 1399 Siskiyou Humbug Mountain 1066 Comment
  UC195247  Eriophyllum lanatum var. achilleoides Annie M. Alexander and Louise Kellogg 1911-6-6 115 Siskiyou Gazelle Comment
  CAS-BOT-BC301103  Eriophyllum lanatum var. achilleoides J. H. Thomas 1954-5-14 4182 Siskiyou Southwestern Siskiyou County. Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville between Lat. 41 deg. 03' and 41 deg. 06'N., and Long. 122 deg. 58' and 123 deg. 03' W. 1219 Comment
  CAS-BOT-BC301128  Eriophyllum lanatum var. achilleoides Ynez Whilton Winblad 1941-6-20 s.n. Siskiyou Between Weed and Yreka Comment
  JEPS34486  Eriophyllum lanatum var. grandiflorum W. L. Jepson Jul 24 1894-Aug 10 1894 14572 Siskiyou plateau at Upton; upper Sacramento 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
  UC507182  Eriophyllum lanatum var. grandiflorum Lincoln Constance 1928-6-1 Siskiyou s of Weed Comment
  OBI55542  Eriophyllum lanatum var. integrifolium David J. Keil, Kathleen Keil 1992-7-24 23567 Siskiyou East of McCloud along hwy 89, 22.6 mi W of Shasta County line Comment
  JEPS29199  Eriophyllum lanatum var. lanceolatum Lauramay T. Dempster 1961-7-1 1826 Siskiyou along ridge from Condry Mountain to White Mountain Comment
  POM30802  Eriophyllum lanatum var. lanceolatum Geo. D. Butler 1910-5-29 1394 Siskiyou Humbug Mountain. 1220 Comment
  UC1483418  Eriophyllum lanatum var. lanceolatum Maralyn A. Renner 1980-7-23 1840 Siskiyou Pacific Crest Trail near ridge about 1 mi e Cook and Green Pass; Klamath National Forest, Seiad Valley Quad. 1752 Comment
  CHSC86455  Erodium cicutarium Jenny Marr 1993-7-1 72 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NE of Meiss Lake. 1349 Comment
  UC1565574  Eryngium mathiasiae Beth Corbin 1989-8-28 548 Siskiyou 0.5 mi. n Adobe Flat Reservoir (ca. 15 air miles n. of Fall River Mills) 1097 Comment
  CAS-BOT-BC54573  Erysimum capitatum John Thomas Howell 1939-8-2 14883 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  CDA33622  Erysimum capitatum R. A. Price 2010-7-3 1655 Siskiyou Along Forest Service Road 17 (Stewart Springs Road); 5 miles east of crest. 0 Comment
  HSC81578  Erysimum capitatum Thomas W. Nelson, Jane P. Nelson 1980-7-17 6091 Siskiyou Along FS Rd. 17, 0.5 mi. N of summit at county line 2073 Comment
  UC585098  Erysimum capitatum var. capitatum E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1916 Siskiyou about 7 mi sw Yreka (s of hwy from Yreka to Fort Jones); Forest House Mt. 1363 Comment
  HSC91047  Erysimum perenne Jennifer Whipple 1976-7-24 1557 Siskiyou SW of Dobkins Lake along the drainage into the lake 2287 Comment
  HSC91050  Erysimum perenne Jennifer Whipple 1978-10-6 2410 Siskiyou Slopes in the Eddy Creek drainage 2287 Comment
  JEPS80560  Erysimum perenne Gilbert Muth 1965-8-6 182 Siskiyou trail on backside of mt Marble Mt. Wilderness Area, Black Mountain 1981 Comment
  SD128722  Erythranthe moschata Darley F. Howe 1980-7-6 Siskiyou 1.3 mile south of Oregon state line on road to Happy Camp 1645 Comment
  CAS-BOT-BC133299  Erythronium hendersonii Mrs. A. E. Stonehouse 1917-4-25 s.n. Siskiyou Hilt Comment
  CAS-BOT-BC133301  Erythronium hendersonii Doris K. Kildale 1929-4-27 7489 Siskiyou Cecilville Comment
  SEINET3160625  Eschscholzia californica G. D. Butler 1910-5-7 1301 Siskiyou Yreka Comment
  HSC16750  Eschscholzia californica R. C. Wunner 1965-6-15 191 Siskiyou Lava Beds National Monument, SE side of Caldwell Butte near old cinder pit 1402 Comment
  HSC16751  Eschscholzia californica R. C. Wunner 1965-6-15 192 Siskiyou Lava Beds National Monument, SE side of Caldwell Butte near old cinder pit 1402 Comment
  JEPS1734 Image available Eucephalus breweri unknown 1910-8-1 Siskiyou near Sissons Comment
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Sep 2 2014
  UC166575  Eucephalus glabratus Geo. D. Butler 1908-8-7 295 Siskiyou Whiskey Camp Independence Creek Comment
  CAS-BOT-BC310459  Eucephalus ledophyllus var. ledophyllus K. T. Stillman 1976-9-9 470 Siskiyou Marble Mountain Wilderness Area. N & NE & E side of Black Mtn. Comment
  HSC27670  Euphorbia crenulata Carl W. Mize 1972-6-8 23 Siskiyou Along main trail 335 Comment
  UC1736078  Euphorbia esula Dean W. Taylor 1999-8-12 17298 Siskiyou Mill Creek, Quartz Valley about 1 mile SSW Mugginsville, along Mill Creek logging road 0.5 miles up from bridge crossing 972 Comment
  UCD77519  Euphorbia glyptosperma Robert E. Preston 2003-7-30 2172 Siskiyou Ca. 17.3 mi NE of McCloud, at Trout Creek Campground. 1486 Comment
  CAS-BOT-BC310638  Eurybia radulina Geo. D. Butler 1910-7-20 1729 Siskiyou Goosenest foothills 1524 Comment
  JEPS31925  Eurybia radulina Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson Upper Sacramento, Mt. Shasta Comment
  HSC42922  Euthamia occidentalis Ken Stillman 1976-8-31 462 Siskiyou Along the Klamath River at Williams Point. 366 Comment
  RSA507775  Euthamia occidentalis J. C. Semple, S. Heard 1986-8-16 8468 Siskiyou CA-96, 1.6 km W of Horse Creek, before CA-3; by Klamath River Comment
  CAS-BOT-BC413901  Fallopia convolvulus Alice Eastwood 1912-7-22 1314 Siskiyou Sisson Comment
  CAS-BOT-BC283182  Festuca californica subsp. californica J. H. Thomas 1954-5-13 4161 Siskiyou Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, along Rush Creek, Salmon Mountains, Klamath National Forest 1127 Comment
  LA13105  Festuca idahoensis J. R. Swallen; 1938-7-15 sn Siskiyou Mount Shasta, Along the road between Bear Springs and Wagon Camp 1676 Comment
  CAS-BOT-BC278877  Festuca occidentalis Alice Eastwood 1923-5-27 11963 Siskiyou Shasta Springs Comment
  HSC73227  Festuca occidentalis Gail Newton 1980-6-20 537 Siskiyou Near Bald Mtn. 1326 Comment
  UC642546  Festuca occidentalis Jason Swallen 1939-6-30 13569 Siskiyou MacBride Springs Mount Shasta 1524 Comment
  UC197105  Festuca roemeri Geo. D. Butler 1909-6-13 833 Siskiyou Moffitt Creek Comment
  UCD66266  Festuca roemeri A. H. Murphy 1959-7-22 59 I Siskiyou Shasta National Forest. Summit between Bear Creek and Toad Lake. 2346 Comment
  HSC30581  Festuca subulata Frederick W. Oettinger 1969-9-4 1655 Siskiyou Marble Mtn. Wilderness Area, dry meadow below Tobacco Lake 1890 Comment
  RSA239111  Festuca subulata Frederick W. Oettinger 1968-9-6 726 Siskiyou Southeast of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UCD66431  Festuca subulata A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3440 Siskiyou Near Happy Camp above the Klamath River. Comment
  HSC32288  Festuca subuliflora J. O. Sawyer 1970-6-17 2206 Siskiyou Dry slopes N of Sugar Lake 1799 Comment
  UC154512  Fragaria vesca Harley P. Chandler Jun 1901 1558 Siskiyou near Marble Mountain (Klamath River to Marble Mountain); North Coast Ranges 1828 Comment
  CAS-BOT-BC59985  Frangula purshiana Lewis S. Rose 1945-6-22 45175 Siskiyou Beaver Creek & Klamath River. 548 Comment
  CAS-BOT-BC59991  Frangula purshiana W. B. C. 1940-7-12 15310 Siskiyou Near the Box Canyon of the Sacramento near Mount Shasta City. 914 Comment
  HSC100188  Frangula purshiana J. P. Smith, & J. O. Sawyer 2011-9-3 13408 Siskiyou Along Old Shasta River Road. 744 Comment
  CAS-BOT-BC55721  Frangula rubra subsp. obtusissima Carl B. Wolf 1930-10-22 1755 Siskiyou 3 mi. No. of Mt. Shasta City on the Pacific Highway 1219 Comment
  CAS-BOT-BC59597  Frangula rubra subsp. rubra Marian L. Campbell 1921-7-26 s.n. Siskiyou Castle Crags Comment
  CAS-BOT-BC5528  Frasera albicaulis var. nitida Alice Eastwood 1921-7-24 10711 Siskiyou Castle Lake Comment
  UCD121439  Frasera albicaulis var. nitida J. P. Smith; J. O. Sawyer 1972-6-30 5638 Siskiyou Jct. of French Creek and Sugar Creek road, 1/2 mile west of Parrott Mill Road. 1249 Comment
  CAS-BOT-BC223581  Fraxinus latifolia Carl B. Wolf 1940-11-8 9781 Siskiyou Along Klamath River, 3 1/2 mi. below mouth of Shasta River 609 Comment
  HSC35066  Fritillaria atropurpurea J. P. Smith 1974-5-25 7647 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  UC1076029  Fritillaria atropurpurea Herbert L. Mason 1947-5-17 14744 Siskiyou summit of Scott Mountain grade, Trinity-Siskiyou County Line Scott Mountain Comment
  UC166189  Fritillaria recurva Geo. D. Butler 1910-4-17 1191 Siskiyou near Yreka Comment
  JEPS55684  Fritillaria recurva W. and M. Roderick 1961-6-28 Siskiyou n of Happy Camp (Indian Creek); Indian Creek Comment
  POM367630  Galium M. B. Dunkle 1945-7-22 9243 Siskiyou Marble Mtns. Klamath National Forest. Comment
  CHSC91392  Galium aparine Lowell Ahart; John Dittes 2005-6-10 12091 Siskiyou Rocky hill, north of the rock fence, about 200 yards east 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
  JEPS25596  Galium aparine Rimo Bacigalupi 1959-7-2 7228 Siskiyou just s Trinity Co. boundary (<Co. boundary is low divide separating Coffee Creek drainage from that of the Salmon River>); Caribou Mtn., Salmon River, Coffee Creek, Big Flat Campgroun 1508 Comment
  JEPS88842  Galium arcuatum T. Howell 1886-1 137 Siskiyou Comment
  JEPS18602  Galium bifolium Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-7-26 5948 Siskiyou s end Gumboot Lake 1859 Comment
  JEPS26968  Galium bolanderi Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7462 Siskiyou above and due e Twin Valley (about 12 air mi ne of Happy Camp); Siskiyou Mts. 1584 Comment
  HSC28215  Galium bolanderi Carl W. Mize 1972-6-8 25 Siskiyou 351 Comment
  HSC30493  Galium bolanderi Frederick W. Oettinger 1969-8-22 1486 Siskiyou Salmon Mtns., along trail entering Horse Range Lake Basin 1768 Comment
  JEPS25704  Galium bolanderi P. C. Hutchison 1961-5-22 2037 Siskiyou on Hwy 299 2.7 mi n Clear Creek (w side of river 5.7 mi s of Happy Camp); Klamath River Comment
  JEPS26665  Galium bolanderi Lauramay T. Dempster 1961-7-2 1847 Siskiyou s Steelhead (near Sugar Pine Gulch); Scott River Comment
  UCD121615  Galium bolanderi J. P. Smith; Steve Selva 1970-7-28 4531 Siskiyou South Fork of Sacramento River. 1127 Comment
  UC416643  Galium boreale subsp. septentrionale W. A. Setchell, C. C. Dobie 1902-7-23 Siskiyou Hearst Castle Comment
  UCR47924  Galium californicum D. L. Koutnik, Martha Townsend 1979-9-10 s.n. Siskiyou SW of Etna, near Etna Bridge 1067 Comment
  RSA165560  Galium glabrescens subsp. glabrescens Clare B. Hardham 1961-6-30 1820 Siskiyou Near White Mt. Comment
  POM253613  Galium glabrescens subsp. glabrescens C. Leo Hitchcock, J. S. Martin 1939-7-6 5228 Siskiyou Peak above and N of Divide of Siskiyou Mts, Takilma Happy Camp road. 1829 Comment
  UC220540  Galium grayanum H. E. Brown Jun 11 1897-Jun 16 1897 435 Siskiyou n side Mt. Shasta 1524 Comment
  HSC82477  Galium serpenticum subsp. scotticum Thomas W. Nelson, Jane P. Nelson 1979-6-15 4797 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  UC1258466  Galium triflorum John Palmer 1980-8-15 966 Siskiyou ne Seiad Low Gap (on spur of F.S. Rd 46N50); Klamath National Forest, Seiad Valley Quad. 1097 Comment
  CAS-BOT-BC200583  Garrya buxifolia Doris K. Kildale 1929-7-20 8627 Siskiyou Trail along South Fork Indian Creek to Elk Lick Comment
  JEPS51840  Garrya buxifolia Geo. D. Butler 1908-8-5 40 Siskiyou Wooley Creek; Marble Mts. 1645 Comment
  CAS-BOT-BC182159  Garrya fremontii Louis C. Wheeler 1934-6-22 2764 Siskiyou Cottonwood Cr. Klamath National Forest 1066 Comment
  UC412883  Garrya fremontii Annie M. Alexander and Louise Kellogg 1911-6-13 138 Siskiyou 6 mi nw Callahan Comment
  CAS-BOT-BC192102  Garrya fremontii C. Hart Merriam 1919-9-26 s.n. Siskiyou Deer Creek, Klamath Canyon (7 miles below Beswick) Comment
  RSA44255  Gayophytum heterozygum W. Bridge Cooke 1949-8-26 25667 Siskiyou Along logging road above Bolam Station, Mount Shasta 1829 Comment
  UC873666  Gayophytum humile A. A. Heller 1916-6-20 12409 Siskiyou Metcalf Ranch Mt. Eddy (ne base of mt.) 1188 Comment
  UC1122595  Gayophytum racemosum M. H. Mitchell 1936-5-22 Siskiyou Black Crater Dorris Quadrangle Comment
  HSC91289  Gentiana calycosa Jennifer Whipple 1976-7-24 1562 Siskiyou SW of Dobkins Lake along the drainage into the lake 2256 Comment
  CAS-BOT-BC217413  Gentiana plurisetosa Doris K. Kildale 1928-8-19 6508 Siskiyou English Lake, head of north fork of Salmon River 1828 Comment
  UC741166  Gentiana plurisetosa C. C. and S. K. Harris 1939-8-29 976 Siskiyou Half Moon Meadow Marble Mountain Primitive Area; Half Moon Meadow, Marble Mt. Primitive Area, Siskiyou Co. 1670 Comment
  RSA238866  Gentiana plurisetosa Frederick W. Oettinger 1968-8-17 562 Siskiyou Bear Meadow, mid-way between Tom Taylor Cabin and English Peak Lookout. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  SEINET6744749 Image available Gentiana setigera C. C. Harris, S. K. Harris 1939-8-29 976 Siskiyou Half Moon Meadow, Marble Mountian Primitive Area, Calfornia Comment
  UC172723  Geum aleppicum Katharine Brandegee 1887-7-1 Siskiyou Sisson Comment
  CHSC1550  Geum macrophyllum K. Jaekel; N. Jaekel 1939-7-15 Siskiyou Mt. Shasta slope. 1097 Comment
  JEPS44854  Geum triflorum Geo. D. Butler 1909-6-23 922 Siskiyou Goosenest Mountain Comment
  SEINET207375  Gilia capillaris Van Deventer, Mrs. Deventer 1959-7-10 7295 Siskiyou Twin Valley Siskiyou Mts. just east of Del Norte County line about 4mi N-NE of Preston Peak; watershed of Indian Cree 1494 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
  JEPS69526  Gilia capitata subsp. capitata W. L. Jepson 1907-7-5 2832 Siskiyou Marble Mt. Marble Mt. (w Siskiyou Co.) 2133 Comment
  UC1258442  Gilia capitata subsp. capitata Maralyn A. Renner 1980-7-23 1848 Siskiyou near ridge about 1 mi e Cook and Green Pass (Pacific Crest Trail); Seiad Valley Quad., Klamath National Forest 1752 Comment
  HSC41802  Gilia capitata subsp. capitata Brent Whitely 1975-7-8 147 Siskiyou Klamath National Forest 762 Comment
  CAS-BOT-BC225352  Gilia latiflora subsp. davyi John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53572 Siskiyou Yreka 822 Comment
  RSA436245  Githopsis specularioides James Payne Smith 1973-5-5 6534 Siskiyou Scott Bar along the Scott River. Comment
  CAS-BOT-BC282720  Glyceria elata A. A. Heller 1916-7-20 12465 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1188 Comment
  HSC31080  Glyceria striata Frederick W. Oettinger, R. F. Thorne 1969-8-6 1234 Siskiyou Marble Mtn. Wilderness Area, rocky N slope on S side of Pine Lake 1951 Comment
  UC1265400  Glyceria striata F. W. Oettinger 1969-9-4 1651 Siskiyou Tobacco Lake Salmon Mountains (w Siskiyou County) 1889 Comment
  CAS-BOT-BC302673  Gnaphalium palustre John Thomas Howell 1939-8-10 15254 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  UC13544  Goodyera oblongifolia W. C. Blasdale 1894-8-8 Siskiyou Shasta Springs Comment
  JEPS77492  Gratiola ebracteata Susan Horner 1978-6-30 401 Siskiyou road between 40N05 and Sand Flat Well about 4 mi sse Hambone Comment
  UC885859  Gratiola ebracteata Louis C. Wheeler 1935-6-13 3570 Siskiyou Greenview , Greenview (Scott Valley) 883 Comment
  CAS-BOT-BC314629  Grindelia hirsutula L. E. Smith 1913-8-13 514 Siskiyou Montague Comment
  SEINET1911817  Hackelia R. Tofsrud, J. M. Tucker 1948-1 1783 Siskiyou Openings in Yellow Pine woods, ca 1.5 miles northwest of McCloud Comment
  HSC624  Hackelia bella William J. Ferlatte 1966-7-7 211 Siskiyou NW side of Caribou Mtn. 1829 Comment
  RSA747341  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
  CDA36166  Hackelia californica C. Pirosko s.n. Siskiyou Highway 89 north before McCloud. 0 Comment
  HSC62457  Hackelia micrantha Ruby Van Deventer 1939-7-18 Siskiyou Twin Valley Comment
  UC1713303  Hackelia micrantha Milo S. Baker 1893-8-9 Siskiyou Medicine Lake Comment
  HSC626  Hackelia micrantha William J. Ferlatte 1966-7-7 213 Siskiyou NW side of Caribou Mtn. 1829 Comment
  POM254142  Hackelia micrantha C. L. Hitchcock 1939-7-9 5338 Siskiyou 2 miles south of Black Mt., near Kings Castle. 1829 Comment
  POM258915  Hackelia micrantha C. L. Hitchcock, J. S. Martin 1939-7-6 5219 Siskiyou On Takilma-Happy camp road. 1677 Comment
  UC1282029  Hastingsia alba Louise Kellogg Aug 5 1953-Aug 7 1953 129 Siskiyou 1 mi n Cory Peak (11 mi e of Callahan on road to Gazelle then s 5.8 mi on logging road); Klamath National Forest, Scott Mountains, Cabin Meadow 1844 Comment
  CAS-BOT-BC504605  Hastingsia alba W. R. Dudley 1893-6-1 s.n. Siskiyou Peter Klinks Meadow Comment
  POM181941  Hastingsia alba J. G. Lemmon 1889-6-28 s.n. Siskiyou Near Edgwood [Edgewood] Comment
  HSC44998  Hastingsia serpentinicola J. P. Smith, Steve Selva 1970-7-17 4454 Siskiyou Below Kangaroo Lake. 1890 Comment
  CHSC118632  Hastingsia serpentinicola Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -007 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539582m E, 4586490m N. 1371 Comment
  HSC61973  Hazardia whitneyi var. discoidea Al Hobart 13 Aug [year missing] Siskiyou Preston Peak 1982 Comment
  UC637160  Helenium autumnale Edward Lee 1934-8-12 1051 Siskiyou e end Seiad Valley (near mouth of Walker Creek, a tributary of the Klamath River); Klamath River, Walker Creek 426 Comment
  UC165255  Helenium bigelovii Geo. D. Butler 1910-7-7 1649 Siskiyou Shackleford Creek 1219 Comment
  UC897321  Helenium bigelovii Alice Eastwood 1912-7-15 1088 Siskiyou McCloud Comment
  UCD132695  Helenium bigelovii J. M. Tucker 1963-8-17 3738 Siskiyou in vicinity of cabin, lower Red Rock Valley, Marble Mountain Wilderness Area. 1493 Comment
  UCD132732  Helenium bigelovii Bruce G. Baldwin 1987-8-3 681 Siskiyou Shasta-Trinity National Forest, west of Mt. Shasta, 3.1 miles west of junction with Toad Lake Road along road to Gumboot Lake (along South Fork of the Sacramento River). Comment
  OBI55529  Helianthus bolanderi David J. Keil, Kathleen Keil 1992-7-21 23516 Siskiyou Klamath Natl Forest SE of Callahan on hwy 3, 2.1 mi NW of Scott Mtn summit Comment
  JEPS19789  Hemizonella minima Rimo Bacigalupi with S. Galen Smith 1957-6-25 5932 Siskiyou forest land just w Black Butte railroad junction 1188 Comment
  POM360344  Hemizonia fasciculata Cora Mae Life 1923-08 14394 Siskiyou Near Horse Camp, Mt. Shasta. Comment
  OBI7192  Hesperocyparis bakeri Carl B. Wolf and E. R. Johnson, E. R. Johnson 1934-10-8 6166 Siskiyou Modoc Lava beds, 1 mi NE of Timbered crater on Old Stage rd from Dana to Little Hot Springs Valley 1219 Comment
  SD40681  Hesperocyparis bakeri Carl B. Wolf, E. R. Johnson 1934-10-8 Siskiyou Modoc lava Beds, 1 mile northeast of Timbered Crater on Old Stage Road from Dana to Little Hot Springs Valley 1220 Comment
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Mar 29 2012
  JEPS11802  Heterocodon rariflorum W. L. Jepson Jul 1894 Siskiyou Sisson Comment
  HSC30649  Heterocodon rariflorum Frederick W. Oettinger 1969-8-18 1427 Siskiyou Marble Mtn. Wilderness Area, due N of Horse Range Lake outlet 1860 Comment
  UCD77769  Heuchera cylindrica Robert E. Preston 2001-6-30 1650 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W nw 1/4 of se 1/4 Section 14 1889 Comment
  HSC266  Heuchera merriamii William J. Ferlatte 1967-8-21 1067 Siskiyou Sawtooth Ridge between Caribou Basin and Little South Fork Lake 2287 Comment
  HSC4792  Heuchera merriamii William J. Ferlatte 1966-8-5 331 Siskiyou N side of Caribou Mtn. 1982 Comment
  JEPS84338  Heuchera merriamii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6370 Siskiyou 7 mi nne of Seiad Valley (w of Cook and Green Pass, 1/2 mi e of Red Butte summit) 1900 Comment
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Jul 30 2009
  UC1347210  Heuchera merriamii John Thomas Howell 1937-7-24 13400 Siskiyou Caribou Basin; Salmon-Trinity Alps 1981 Comment
  HSC64867  Heuchera micrantha J. P. Smith 1976-5-5 8695 Siskiyou Road between Forks of Salmon and Somes Bar 366 Comment
  CAS-BOT-BC420938  Heuchera micrantha var. diversifolia D. E. Breedlove 1962-6-11 3348 Siskiyou On moist bank of Canyon Creek with Pinus ponderosa and Salix so., abour 20 miles west of Fort Jones; Marble Mountains 914 Comment
  CDA25409  Heuchera micrantha var. pacifica F. D. Horn, D. L. Janssen 1978-5-17 Siskiyou Old Klamath River Highway, approximately 8 km east of Horse Creek. 0 Comment
  JEPS49752  Heuchera rubescens Geo. D. Butler 1908-7-4 216 Siskiyou Shasta River near Reeders; Shasta River Comment
  UCD19520  Heuchera rubescens Charlotte K. Glenn 1967-1 137 Siskiyou Castle Lake 1584 Comment
  CAS-BOT-BC424370  Heuchera rubescens C. S. Robinson 1927-7-28 107 Siskiyou Sequoia Forest. Grantie Gulch Long Meadow. 2987 Comment
  CAS-BOT-BC319690  Hieracium albiflorum Doris K. Kildale 1928-8-19 6569 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  CAS-BOT-BC319701  Hieracium albiflorum John Thomas Howell 1937-7-22 13308 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CHSC359  Hieracium albiflorum K. Jaekel 1939-7-2 Siskiyou Mt. Shasta. 1828 Comment
  UC897800  Hieracium albiflorum A. A. Heller 1915-7-18 12122 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  CHSC69070  Hieracium greenei Vernon Oswald; Lowell Ahart 1997-7-28 8801 Siskiyou Forest Route 15 near Grasshopper Flat, 3.9 mi south of Medicine Lake Road. 1700 Comment
  UC455914  Hieracium nudicaule I. J. Condit 1911-7-15 Siskiyou McCloud Comment
  CAS-BOT-BC316027  Hieracium scouleri Elmer I. Applegate 1925-6-8 9425 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  CAS-BOT-BC316032  Hieracium scouleri Annie M. Alexander; Louise Kellogg 1949-7-20 5812 Siskiyou Paradise Lake, Marble Mountains 1920 Comment
  HSC29196  Hieracium scouleri Frederick W. Oettinger 1969-8-9 1257 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: Tom's Lake Basin 1890 Comment
  RSA238739  Hieracium scouleri Frederick W. Oettinger, R. F. Thorne 1969-8-4 1170 Siskiyou Near outlet of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  HSC94  Holodiscus discolor William J. Ferlatte 1966-8-18 429 Siskiyou At the summit of Willow Cr. Trail, on an exposed ridge. Comment
  RSA50153  Holodiscus discolor E. K. Balls 1949-7-10 13960 Siskiyou 8 miles from Sawyers Bar on way to Cecilville. 793 Comment
  CAS-BOT-BC150145  Holodiscus microphyllus var. glabrescens Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1889 Comment
  JEPS94386  Hordeum brachyantherum subsp. brachyantherum Vernon Oswald and Lowell Ahart 1997-7-28 8787 Siskiyou on road 43N54 at a meadow 0.6 mi se of Paynes Springs (se of Medicine Lake) 1920 Comment
  SEINET516278  Hordeum brachyantherum subsp. brachyantherum Vernon H. Oswald 1997-7-28 8787 Siskiyou SE of Medicine Lake on road 43N54 at a meadow 0.6 mi SE of Paynes Springs. 1920 Comment
  UC197104  Hordeum brachyantherum subsp. brachyantherum Geo. D. Butler 1910-6-15 1564 Siskiyou Yreka Creek Comment
  JEPS95829  Horkelia daucifolia Vernon H. Oswald and Lowell Ahart 1999-7-5 9807 Siskiyou Gazelle Mtn., on road 41N03, 0.2 mi SE of Gazelle-Callahan Hwy. 1508 Comment
  JEPS96981  Horkelia daucifolia Dean W. Taylor 1999-6-9 17238 Siskiyou Agate Flat, 0.3 miles S of Oregon State Line 1005 Comment
  POM34911  Horkelia daucifolia Geo. D. Butler 1910-7-3 1634 Siskiyou Creek bank (illegible) foothills. 1220 Comment
  SEINET7042830  Horkelia daucifolia A. G. Vestal 1955-5-16 s.n. Siskiyou Serpentine ca. 6.2 miles northwest of Weed. Weed quadrangle UTM Zone 10, 543291mE, 4591309mN. Comment
  JEPS44556  Horkelia tridentata Willis L. Jepson Jul 24 1894-Aug 10 1894 120 p Siskiyou near Sisson; Region of the Upper Sacramento Comment
  UC185648  Horkelia tridentata subsp. tridentata Dr. E. B. Copeland 1903-9-5 3865 Siskiyou Igerna Comment
  CAS-BOT-BC538244  Horkelia tridentata var. flavescens Doris K. Kildale 1929-5-31 9157 Siskiyou South Fork of Salmon River at Cecilville Comment
  CAS-BOT-BC55496  Hornungia procumbens John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-28 53377 Siskiyou Shasta Valley. 2 miles south of Grenada. 762 Comment
  CAS-BOT-BC201133  Hosackia crassifolia Doris K. Kildale 1929-7-20 8573 Siskiyou South Fork Indian Creek near Gilmore's 457 Comment
  UCD106152  Hosackia oblongifolia R. Tofsrud; J. M. Tucker 1948-8-3 1777 Siskiyou 3 miles (by road) below summit of Happy Camp -- Waldo (Oregon) road. Comment
  UC1949031  Hosackia pinnata Barbara Ertter with Julie Kierstead and Jim Nelson 1990-4-15 9355 Siskiyou MOrgon Meadows on E side of Mt Eddy ca 5 airmiles due W of Mt Shasta City Comment
  CAS-BOT-BC312575  Hulsea nana A. A. Heller 1915-8-26 12215 Siskiyou Near the summit of Mt. Eddy 2743 Comment
  CHSC30245  Hulsea nana M. S. Taylor; J. Prouty, E. Heinitz 1980-8-19 3265 Siskiyou Paint Pot Crater. 1920 Comment
  UC1046527  Hydrophyllum fendleri var. albifrons R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-16 3451 Siskiyou Poker Flat Siskiyou Mountains (near summit of Takilma-Happy Camp Road over Siskiyou Mountains, at Del Norte-Siskiyou County line) 1630 Comment
  HSC27489  Hydrophyllum occidentale J. P. Smith, J. O. Sawyer 1972-5-27 5352 Siskiyou Hwy. 3 near the Scott Mtn. Campground on divide between Scott and Trinity Rivers 1601 Comment
  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
  CAS-BOT-BC312854  Hymenoxys lemmonii Geo. D. Butler 1910-7-4 1640 Siskiyou Shasta River Comment
  UC54079  Hymenoxys lemmonii H. M. Hall and E. B. Babcock 1903-6-1 4091 Siskiyou 3 mi ne Edgewood; Sierra Nevada Mountains, Mt. Shasta, Shata Valley 914 Comment
  HSC77091  Hypericum anagalloides K. T. Stillman 1976-7-30 334 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  SEINET10472172  Hypericum anagalloides Mary Susan Taylor 1980-7-8 Taylor 3100 Siskiyou T39N R5W ne sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on NW side of Castle Lake, along edge of lake. 1615 Comment
  SEINET3157533  Hypericum scouleri G. D. Butler 1910-7-3 1627 Siskiyou Goosenest foothills 1219 Comment
  SEINET5344270  Hypericum scouleri G. Butler 1910-7-3 1627 Siskiyou Goosenest foothills 1219 Comment
  CAS-BOT-BC401470  Hypericum scouleri W. R. Dudley 1899-8-13 s.n. Siskiyou Near Nabar Meadows, McCloud Comment
  HSC100273  Iliamna bakeri J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13067 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 1838 Comment
  UC1576732 Image available Iliamna bakeri Dean Wm. Taylor, Glenn L. Clifton, and R. Doug Stone 1987-8-6 9244 Siskiyou About 100 m s Lava Tank (extreme northeastern portion of County, Hambone Island region. 1219 Comment
  RSA172017  Iliamna bakeri F. W. Peirson 1923-7-17 3772 Siskiyou Whitney Creek, foot of Mt. Shasta Comment
  RSA516492  Iliamna bakeri L. R. Heckard, L. Constance, R. Ornduff 1969-6-24 2290 Siskiyou Northwest side of Mt. Shasta along Hwy 97, 0.7 miles south of Bolam road junction Comment
  HSC29285  Ipomopsis aggregata subsp. aggregata Frederick W. Oettinger, R. F. Thorne 1969-8-8 1282 Siskiyou Marble Mtn. Wilderness Area, Sundew Bog near English Lake 1829 Comment
  RSA211091  Ipomopsis aggregata subsp. formosissima William J. Ferlatte 1966-7-7 209 Siskiyou northwest side of Caribou Mountain. 1829 Comment
  HSC36751  Isatis tinctoria J. P. Smith 1974-5-25 7394 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  HSC64148  Isatis tinctoria J. P. Smith 1973-5-5 6404 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  HSC30622  Isoetes bolanderi Frederick W. Oettinger 1969-8-21 1474 Siskiyou Near Ethel Lake, Salmon Mtns. 1738 Comment
  JEPS98784  Juncus Sue Pappalardo 1993-7-19 505 B Siskiyou about 4 mi SE of Bear Mountain Lookout (Forest Service road 40N38); Shasta Trinity National Forest, McCloud Ranger District 1320 Comment
  CHSC40142  Juncus balticus L. P. Janeway 1983-8-16 549 Siskiyou At Poker Flat. Dry front edge of upper portion of meadow. 1524 Comment
  JEPS66905  Juncus balticus Geo. D. Butler 1910-5-1 1254 Siskiyou near Yreka Comment
  HSC77291  Juncus bolanderi L. P. Janeway 1982-6-30 31 Siskiyou E facing slope 300m N of West Branch Guard Station 671 Comment
  HSC76689  Juncus drummondii K. T. Stillman 1976-7-30 313 Siskiyou Marble Mountain Wilderness Area, trail from Big Rock Camp to Jump off. 1982 Comment
  HSC96560  Juncus drummondii Gordon Leppig, J. Kalt 1996-7-10 379 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  HSC77132  Juncus effusus subsp. pacificus L. P. Janeway 1983-7-2 363 Siskiyou SE side of Klamath River, 6 mi. E on China Creek Rd., near Happy Camp, near water's edge 335 Comment
  CHSC35626  Juncus ensifolius R. E. Preston 1981-8-22 140 Siskiyou N shore of Juanita Lake. 1555 Comment
  JEPS66981  Juncus ensifolius B. C. Goldsmith 1916-6-22 1 a Siskiyou McCloud Flat Mt. Shasta Comment
  JEPS66991  Juncus ensifolius Geo. D. Butler 1910-6-21 1596 Siskiyou Yreka Creek Comment
  RSA608368  Juncus ensifolius L. C. Wheeler 1934-6-26 2790 Siskiyou Siskiyou Mountains, Cottonwood Creek. 838 Comment
  RSA577908  Juncus ensifolius L. C. Wheeler 1935-7-26 3710 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  HSC77290  Juncus exiguus L. P. Janeway 1983-6-25 328 Siskiyou 350 m N of W Branch Guard Station 671 Comment
  UCSB63785  Juncus kelloggii Oswald, Vernon; Ahart, Lowell 1998-7-21 Siskiyou Northeast of Weed; east of Grass Lake; and west of Bray on Old State Highway; 0.8 mi east of Tennant Rd; T44N R1W SW'/i Sect. 20 1417 Comment
  CAS-BOT-BC127620  Juncus mertensianus H. A. Thomas; J. H. Thomas 1954-7-24 4518 Siskiyou Salmon-Trinity Mountains. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles east of Cecilville. 1981 Comment
  HSC92869  Juncus mertensianus Jennifer Whipple 1977-7-20 1998 Siskiyou N slopes of Mount Eddy 2500 Comment
  HSC96561  Juncus mertensianus Gordon Leppig, J. Kalt 1996-7-10 377 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UC618808  Juncus mertensianus unknown 1938-8-8 11475 Siskiyou above Horse Camp (along the Summit Trail); Mount Shasta, Horse Camp Springs, Summit Trail 2514 Comment
  POM110932  Juncus mexicanus Geo D. Butler 1910-5-1 1254 Siskiyou Near Yreka. Comment
  HSC774  Juncus nevadensis William J. Ferlatte 1967-8-17 949 Siskiyou Yellow Rose Mine 1982 Comment
  CHSC40152  Juncus occidentalis L. P. Janeway 1983-7-11 411 Siskiyou Along edge of dirt rd ca 350 m n of West Branch Guard Sta. 670 Comment
  UCD141754  Juncus parryi William Bridge Cooke 1937-8-7 9252 Siskiyou Vicinity of The Gate (south) Hudsonian. 2590 Comment
  POM256459  Juncus tenuis Edward Lee 1934-8-11 1028 Siskiyou Walker Creek canyon, a tributary of the Klamath River (east end of Seiad Valley). 610 Comment
  CHSC109961  Juncus trilocularis Peter F. Zika 2009-8-16 24598 Siskiyou Forest Service Road 46N04, meadows near north end of Juanita Lake, Cascade Range Highlands. 1550 Comment
  CAS-BOT-BC81141  Juniperus communis E. G. Dudley 1907-8-16 s.n. Siskiyou Peak north of Jackson Lake Comment
  RSA697391  Juniperus communis W. Lane 1938-07 s.n. Siskiyou Siskiyou Mountains 1220 Comment
  RSA240063  Juniperus communis var. montana Frederick W. Oettinger 1969-8-23 1513 Siskiyou Slope near Smith Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  HSC31503  Juniperus communis var. saxatilis Steve Selva, Roger Jensen 1974-8-25 51 Siskiyou Top of ridge S of Little Duck Lake Comment
  UCD133821  Juniperus communis var. saxatilis Joseph M. DiTomaso 1976-9-8 689 Siskiyou Trinity Alps. South side of upper Caribou Lake. 2103 Comment
  CAS-BOT-BC81227  Juniperus occidentalis Mary Strong Clemens 1920-7-28 s.n. Siskiyou Yreka Comment
  CHSC32823  Juniperus occidentalis Dirk Reith 1979-4-10 4 Siskiyou 10 mi wsw of Newell, 2 mi sw of Tule Lake, in Lava Beds Nat'l Monument. 1371 Comment
  HSC1276  Juniperus occidentalis R. C. Wunner 1965-6-18 207 Siskiyou Indian Well Campground, Lava Beds National Monument 1433 Comment
  UC496193  Juniperus occidentalis Elmer I. Applegate 1932-4-15 7060 Siskiyou Scott Valley e side on dry rocky hillside Scott Valley Comment
  UC567206  Juniperus occidentalis H. A. Jensen 1934-8-29 384 Siskiyou Cedar Park School Dunsmuir Quad. 883 Comment
  UC637102  Juniperus occidentalis Edward Lee 1934-8-9 1014 Siskiyou 6 mi n Yreka (above creek); Shasta Creek Comment
  SEINET10612645  Juniperus sibirica Edwin B. Copel 1903-10-6 Copeland 3782 Siskiyou Mt. Eddy 2250 Comment
  HSC4843  Kalmia polifolia J. O. Sawyer 1968-7-23 567 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  UC335726  Keckiella breviflora J. G. Lemmon Oct 1889 Siskiyou near Dunsmuir (Soda Spring); Soda Spring Comment
  CAS-BOT-BC235863  Keckiella corymbosa Ira L. Wiggins 1955-7-31 13593 Siskiyou Along S Fork of Salmon River betw. Cecilville and Forks of Salmon Comment
  RSA305804  Keckiella corymbosa James R. Shevock 1972-7-26 2226 Siskiyou Along the Klamath River. 518 Comment
  HSC22102  Kelloggia galioides J. O. Sawyer 1969-8-1 1647 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  UCR37844  Kelloggia galioides K. T. Stillman 1976-8-7 363 Siskiyou Marble Mountain Wilderness Area. Trail to Marble Valley Guard Station Comment
  UC705502  Kopsiopsis strobilacea Marion Ownbey, Fred G. Meyer 1940-7-7 2220 Siskiyou Summit of Cayenne Ridge, Marble Mountain. Comment
  HSC41089  Kyhosia bolanderi J. O. Sawyer 1969-8-5 1997 Siskiyou Along trail to Sugar Lake Comment
  CAS-BOT-BC340437  Lactuca saligna Doris K. Kildale 1925-9-6 1284 Siskiyou Somes Bar, near junction of Salmon & Klamath River Comment
  UC538054  Lagophylla ramosissima Palmer Stockwell 1934-7-16 77 Siskiyou Weed Comment
  SBBG15261  Lathyrus nevadensis D. Myrick 1961-6-21 302 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  RSA184761  Lathyrus nevadensis subsp. lanceolatus Gilbert Muth 1966-7-14 384 Siskiyou Marble Valley, above pasture, Marble Mountains. Comment
  HSC45166  Lathyrus nevadensis var. nevadensis J. O. Sawyer, E. Cope 1977-6-19 2946 Siskiyou Clear Creek Trail between West Fork and Preston Creek 854 Comment
  UC1101299  Lemna turionifera Verne Grant, Irving Schneider 1947-8-26 8292 Siskiyou Tule Lake Comment
  CAS-BOT-BC245660  Lemna turionifera Douglas Barbe 1955-6-29 050 Siskiyou 4.1 mi. southeast of Etna on the Eastside Rd. 914 Comment
  CAS-BOT-BC88862  Lepidium campestre Dorothy Parker 1946-6-6 s.n. Siskiyou Plowman's Valley. 1188 Comment
  HSC64057  Lepidium campestre J. P. Smith, Steve Selva 1970-7-17 4427 Siskiyou Along Klamath River. 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
  CAS-BOT-BC88926  Lepidium densiflorum var. densiflorum Geo. D. Butler 1910-6-27 1612 Siskiyou Yreka Creek. Comment
  CHSC91382  Leptosiphon bolanderi Lowell Ahart; John Dittes 2005-6-10 12087 Siskiyou Rocky hillside, north of the rock fence, about 200 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
  POM215941  Leptosiphon harknessii L. C. Wheeler 1934-7-3 2868 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts 1677 Comment
  POM298649  Lesquerella occidentalis Lincoln Constance, H. L. Mason, J. F. Davidson, J. M. Tucker 1947-5-17 3199 Siskiyou Summit of NW spur of Scott Mountain. 183 Comment
  JEPS6664  Lesquerella occidentalis subsp. occidentalis Geo. D. Butler 1910-5-15 1342 Siskiyou Greenhorn Mountain 914 Comment
  HSC8217  Lessingia nemaclada J. P. Smith, J. O. Sawyer 1972-9-14 5801 Siskiyou Miner's Creek Rd. just S of French Creek Rd. between Callahan and Etna. 915 Comment
  JEPS20613  Lessingia nemaclada W. L. Jepson 1907-7-25 2960 Siskiyou Scott Valley Comment
  UCD134102  Lessingia ramulosa James P. Smith; John Sawyer 1971-9-18 4796 Siskiyou State 3 between Callahan and Etna at turnoff to the Proctor Ranch. Comment
  CAS-BOT-BC342103  Leucanthemum vulgare Louis C. Wheeler 1934-8-20 3198 Siskiyou Klamath National Forest. W. Fork Beaver Cr. 1127 Comment
  HSC752  Leucothoe davisiae William J. Ferlatte 1966-8-3 279 Siskiyou Josephine Lake basin. 1677 Comment
  RSA211221  Leucothoe davisiae William J. Ferlatte 1966-8-5 353 Siskiyou Caribou Mtn. 2470 Comment
  CAS-BOT-BC229451  Lewisia cotyledon Stuart K. Harris 1960-6-28 21601 Siskiyou Outlet Taylor Lake Comment
  CAS-BOT-BC444057  Lewisia cotyledon var. cotyledon Ira L. Wiggins 1955-7-27 13538 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CHSC95122  Lewisia cotyledon var. cotyledon L. P. Janeway 2006-7-3 8771 Siskiyou Klamath Ranges. Salmon Mountains; 100 m west of the Taylor Lake Trailhead Road 0.8 km south of the main road. North-facing edge at top of narrow rocky spur ridge. 1820 Comment
  JEPS80491  Lewisia leeana Gilbert Muth 1966-7-14 382 Siskiyou Marble Gap trail on flat above Marble Valley Marble Mt. Wilderness Area 1828 Comment
  UC1408827  Lewisia leeana Frederick W. Oettinger 1968-8-22 594 Siskiyou slope betweeen English Peak and Diamond Lake; Salmon Mountains, High Lake Basins, Marble Mountain Wilderne 2194 Comment
  CAS-BOT-BC444080  Lewisia leeana Lester Rowntree 1931-7-26 s.n. Siskiyou Caribou Lakes Comment
  UC1005598  Lewisia nevadensis Frank W. Gould 1940-5-15 1233 Siskiyou Bull Meadows Goosenet Mountain 152 Comment
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Jul 6 2007
  UC922367  Lewisia nevadensis Annie M. Alexander and Louise Kellogg 1949-7-21 5827 Siskiyou Paradise Lake Marble Mountains 1920 Comment
  CAS-BOT-BC444424  Lewisia rediviva Roxana S. Ferris; Laura Lorraine 1948-6-12 11715 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], e. fork of Scott River Comment
  HSC22268  Lewisia triphylla J. O. Sawyer 1969-7-3 1044 Siskiyou Near Lipstick Lake 1951 Comment
  HSC4449  Lewisia triphylla William J. Ferlatte 1966-6-22 74 Siskiyou Josephine Lake Basin 1677 Comment
  JEPS82461  Lewisia triphylla Gilbert Muth 1966-7-14 388 Siskiyou flat above Marble Valley (Marble Gap Trail); Marble Mt. Wilderness Area 1828 Comment
  HSC40983  Lewisia triphylla J. O. Sawyer 1975-7-16 2698 Siskiyou Along trail to Little Duck Lake, 1/2 mi. E of Lake 1829 Comment
  CAS-BOT-BC283811  Leymus cinereus Geo. D. Butler 1910-6-13 1561 Siskiyou Near Yreka Comment
  UC817326  Leymus cinereus L. E. Smith July 1915 Siskiyou Bray Comment
  CAS-BOT-BC509361  Lilium kelleyanum Albert M. Vollmer; L. Beane 1953-7-1 109 Siskiyou Foot of Mt. Shasta Comment
  CAS-BOT-BC509377  Lilium kelleyanum John Thomas Howell 1939-8-3 14949 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC130813  Lilium pardalinum Marion Ownbey; Fred G. Meyer 1940-7-6 2200 Siskiyou Cayenne Ridge, Marble Mountain Comment
  JEPS61997  Lilium pardalinum Geo. D. Butler 1909-7-20 886 Siskiyou Highland Mine Comment
  RSA78677  Lilium pardalinum Philip A. Munz 1952-7-2 17870 Siskiyou Road to Baldy Mountain, northwest of Happy Camp, Siskiyou Mountains 1220 Comment
  SEINET3887240  Lilium pardalinum Alv Dan Youngberg 1964-6-14 69 Siskiyou Humbolt Meridian.; 0 427 Comment
  SEINET8480730  Lilium pardalinum G. D. Butler 1910-6-6 1454 Siskiyou Quartz Valley. Comment
  HSC101482  Lilium pardalinum subsp. wigginsii J. P. Smith, J. O. Sawyer 2011-7-21 13034 Siskiyou Near Dillon Camp 1358 Comment
  HSC36707  Lilium washingtonianum subsp. purpurascens Brent Whiteley 1975-7-1 116 Siskiyou 671 Comment
  CAS-BOT-BC133029  Lilium washingtonianum subsp. purpurascens Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Comment
  CAS-BOT-BC133092  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 9 Siskiyou 3.5 miles northeast of the town of Mount Shasta 1402 Comment
  UC907988  Linanthus androsaceus Mabel Ruttle 1927-5-5 Siskiyou Dunsmuir Comment
  JEPS58267  Linanthus bolanderi Geo. D. Butler 1909-4-26 621 Siskiyou Oro Fino Comment
  JEPS25586  Linanthus harknessii Rimo Bacigalupi 1959-7-2 7218 Siskiyou near n base of Caribou Mtn. (and just s of low divide (Trinity Co. boundary) separating Coffee Creek drainage from that of the Salmon River, Big Flat Campground, headwaters); South Fork of the Salmon River, Big Flat Campground 1508 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
  HSC53278  Linnaea borealis subsp. longiflora Butler 1971-7-29 238 Siskiyou Near Copper Mtn. Mines, close to the town of Cave Junction. 1464 Comment
  JEPS12683  Linnaea borealis var. longiflora Ruby Van Deventer 1938-7-31 194 Siskiyou w side Poker Flat Woods; w side Poker Flat Woods 1219 Comment
  SEINET4039768  Linnaea borealis var. longiflora O. M. Clark 1947-1 14400 Siskiyou Myrtle Creek, Siskiyou Mountains. Comment
  RSA14401  Linum lewisii Elmer I. Applegate 1923-8-20 3898 Siskiyou Medicine Lake 1982 Comment
  CHSC1014  Linum lewisii var. lewisii V. Holt 1932-7-7 Siskiyou Mt. Eddy 1524 Comment
  HSC30487  Listera convallarioides Frederick W. Oettinger 1969-8-12 1334 Siskiyou Salmon Mountains, at the Cedars, along Main N Fork Trail between Yellow Dog Creek and Abbott's Lower Cabin 960 Comment
  RSA68921  Listera convallarioides A. E. Culbertson 1943-8-12 36 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 Trinty Mountains; 2000 above Sacramento River within 10 air miles of its headwaters to the west 1657 Comment
  CAS-BOT-BC36531  Lithocarpus densiflorus var. echinoides A. A. Heller 1918-7-16 13035 Siskiyou Mt. eddy, west of Sisson, on open southeastern slope 1524 Comment
  UC726779  Lithocarpus densiflorus var. echinoides A. A. Heller 1918-7-16 13035 Siskiyou Mt. Eddy 1524 Comment
  CAS-BOT-BC432316  Lithophragma campanulatum John Thomas Howell 1937-7-22 13300 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  HSC44954  Lithophragma glabrum J. O. Sawyer 1978-6-16 3219 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  CDA25417  Lithophragma glabrum F. D. Horn 1978-4-9 Siskiyou Horn Ranch near Etna. 0 Comment
  JEPS47483  Lithophragma parviflorum Geo. D. Butler 1909-5-1 687 Siskiyou Klamath Hills Comment
  JEPS94268  Lithophragma tenellum Vernon H. Oswald and Lowell Ahart 1998-6-11 9209 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  CHSC31062  Lithospermum californicum M. S. Taylor 1980-7-8 3088 Siskiyou On n side of Castle Lake Rd (39N24), ca. 0.9 mi w of its jct with 40N26 at se side of Lake Siskiyou. 1036 Comment
  CAS-BOT-BC269143  Lolium perenne A. A. Heller 1915-7-18 12125 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UCD66463  Lolium perenne A. A. Heller 1921-7-5 13564 Siskiyou Abrams Lake, near Sisson. Comment
  SEINET10591996  Lolium perenne A. Arthur Heller 1921-7-5 Heller 13564 Siskiyou Moist soil at Abrams Lake, near the town of Mt. Shasta, in the yellow pine belt. Comment
  UCR37582  Lomatium californicum L. P. Janeway 1983-7-17 425 Siskiyou Poker Flat 1529 Comment
  UC1246759  Lomatium californicum Howard Scott Gentry 1962-6-7 19753 Siskiyou near Klamath R. along Hwy. 99 609 Comment
  UC1424943  Lomatium dissectum var. multifidum Frederick W. Oettinger 1969-7-9 946 Siskiyou slope nw Upper English Lake (high lake basins in vicinity of Eanglish Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1844 Comment
  CHSC91232  Lomatium macrocarpum Lowell Ahart; John Dittes 2005-6-9 12032 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
  UC1483408  Lomatium macrocarpum Maralyn A. Renner 1980-8-7 2423 Siskiyou ridge S of Preston Peak 1950 Comment
  UC923160  Lomatium macrocarpum Freed W. Hoffman 1950-7-13 3287 Siskiyou Baldy Mountain Lookout North Coast Ranges, western Siskiyou Co. Comment
  RSA452143  Lomatium macrocarpum M. B. Dunkle 1945-1 9341 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  CHSC118623  Lomatium utriculatum Richard R. Halse 2016-5-29 9724 Siskiyou Along Hilt Road east of Hilt. 902 Comment
  UC1731420  Lomatium vaginatum Dean Wm. Taylor with Craig Martz, Joe Molter, Barbara Williams, Julie Nelson 1997-5-4 15983 Siskiyou along Yreka Ditch ca. 4 air mi sw Gazelle (hillslopes of mts., bordering Shasta Valley, China Mountain 7 1/2' USGS quadrangle); Klamath Region, Scott Mountains 960 Comment
  CDA42196  Lonicera ciliosa D. H. Shaw 1977-5-26 s.n. Siskiyou Walker Creek, near Seiad. 0 Comment
  SEINET3154549  Lonicera ciliosa G. D. Butler 1909-5-23 1395 Siskiyou Humbug mountain 1219 Comment
  HSC29345  Lonicera conjugialis Frederick W. Oettinger 1967-7-26 206 Siskiyou Ridge E of Hancock Lake, Hancock Lake Basin. 1982 Comment
  HSC836  Lonicera conjugialis William J. Ferlatte 1967-7-9 693 Siskiyou Kidd Creek Trail. 1982 Comment
  HSC96884  Lonicera conjugialis Gordon Leppig 1998-7-10 915 Siskiyou Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  LA205970  Lonicera conjugialis Charles Darland; 1940-6-6 sn Siskiyou Castle Lake Comment
  RSA184705  Lonicera conjugialis Gilbert Muth 1966-7-8 378 Siskiyou Marble Valley. Marble Mtns. 1793 Comment
  CAS-BOT-BC240638  Lonicera hispidula Doris K. Kildale 1928-7-3 5428 Siskiyou Forks of Salmon on Salmon River Comment
  RSA537376  Lonicera hispidula var. vacillans W. Wisura, J. Romero 1991-10-17 4597 Siskiyou 1.5 mi up Sugar Creek Rd, N of Callahan. Comment
  UC28531  Lonicera interrupta Edward L. Greene 1870-7-7 920 Siskiyou Comment
  JEPS65135  Lotus crassifolius var. crassifolius W. L. Jepson 1940-7-1 20080 Siskiyou McCloud 975 Comment
  SEINET3131480  Lotus crassifolius var. crassifolius G. D. Butler 1910-6-6 1452 Siskiyou Quartz Valley Comment
  UC637133  Lotus oblongifolius var. oblongifolius Annetta Carter 1934-8-13 703 Siskiyou Happy Camp to Waldo (Oregon road, watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  UC864297  Lotus oblongifolius var. oblongifolius A. A. Heller 1915-7-15 12101 Siskiyou Mt. Eddy 1371 Comment
  UC204724  Lotus purshianus var. purshianus A. A. Heller 1914-8-25 11701 Siskiyou near Deetz Station 1158 Comment
  CAS-BOT-BC140201  Luetkea pectinata Louis C. Wheeler 1934-8-14 3121 Siskiyou 1 mile west White Mt., Siskiyou Mts. 1920 Comment
  HSC29401  Luetkea pectinata Frederick W. Oettinger 1968-8-2 356 Siskiyou Marble Mtn. Wilderness Area, SE corner of Diamond Lake 2073 Comment
  HSC60909  Luetkea pectinata Al Hobart 1971-7-19 Siskiyou Black Butte Comment
  UCR80256  Luetkea pectinata L. C. Wheeler 1934-8-14 3121 Siskiyou Siskiyou Mtns., 1 mile west of White Mt. 1921 Comment
  SD53402  Lupinus Darley F. Howe 1962-8-6 3400 Siskiyou Mt. Shasta 2438 Comment
  UC1034059  Lupinus albicaulis var. shastensis W. Bridge Cooke 1941-9-5 16282 Siskiyou vicinity MacBride Springs, Mt. Shasta (Mt. Shasta); , vicin MacBride Springs Comment
  UC1096807  Lupinus albicaulis var. shastensis Douglas Barbe 1955-7-5 110 Siskiyou four and .7 mi w Greenview in Quartz Valley; Klamath Mountains, Quartz Valley 914 Comment
  RSA119549  Lupinus albicaulis var. shastensis C. P. Smith 1947-5-13 47277 Siskiyou 2.2 miles east of Weed. Comment
  SBBG13892  Lupinus albifrons H. and M. Dearing 1939-7-3 3812 Siskiyou Mt Etna 1219 Comment
  SEINET10488384  Lupinus albifrons Donald E. Bright 1962-6-13 Bright 287 Siskiyou Rocky outcrop along klamath river, at junction of thompson creek, 20 miles n of Happy camp Comment
  CAS-BOT-BC195970  Lupinus albifrons var. albifrons Charles Piper Smith 1947-5-13 47270 Siskiyou 9.2 miles east of Weed. Highway 97 Comment
  CDA27371  Lupinus albifrons var. collinus K. S. Buchanan 1975-5-29 Siskiyou Interstate 5 north of Weed airport. 0 Comment
  UC796507  Lupinus albifrons var. collinus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11725 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road 1066 Comment
  UC82285  Lupinus albifrons var. collinus Dr. E. B. Copeland 1903-7-3 3527 Siskiyou Klamathon Comment
  POM11084  Lupinus albifrons var. eminens Geo. D. Butler 1910-5-2 1268 Siskiyou Around Yreka. Comment
  RSA582455  Lupinus albifrons var. flumineus Louis C. Wheeler 1935-6-13 3581 Siskiyou N side Scot River, Scott Bar Mts. 823 Comment
  CHSC82833  Lupinus angustiflorus L. P. Janeway 2002-7-13 7636 Siskiyou High Cascade Range. 1.6 km southeast of southeast corner of Medicine Lake; east side of Road 49 (44N75) 0.2 km north of Road 44N17. Drainage below the road. 2067 Comment
  SFV18059  Lupinus angustiflorus J. A. Matos, D. C. Rudolph 1999-8-7 s. n. Siskiyou 2 miles south of Lava Beds National Monument on Lava Beds National Monument Road. 1738 Comment
  CAS-BOT-BC196353  Lupinus argenteus var. argenteus L. E. Smith 1914-5-14 695 Siskiyou Montague Comment
  HSC71624  Lupinus bicolor J. P. Smith 1973-5-5 6570 Siskiyou Etna 793 Comment
  HSC32250  Lupinus breweri J. O. Sawyer 1970-6-17 2209 Siskiyou On trail to South Sugar Lake 1829 Comment
  CAS-BOT-BC196694  Lupinus breweri var. breweri Marion Ownbey; Ruth P. Ownbey 1938-7-20 1763 Siskiyou Near Dry Lake Lookout, summit of the Siskiyou Mountains Comment
  CAS-BOT-BC215101  Lupinus croceus John Thomas Howell 1937-7-1 13314 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  HSC795  Lupinus croceus William J. Ferlatte 1967-7-9 700 Siskiyou Kidd Creek Trail 1677 Comment
  CAS-BOT-BC215178  Lupinus croceus Wm. Bridge Cooke 1940-6-6 15079 Siskiyou Roadside on the way to Castle Lake 1524 Comment
  LA205109  Lupinus croceus Carl Epling; 1940-6-6 sn Siskiyou Klamath Mountains, Castle Lake Road Comment
  SEINET10485434  Lupinus klamathensis Jeffrey Huber 1971-6-9 Huber 270 Siskiyou 3 mi. N of weed, on us hwy 97; s facing 20 degree slope; roadside; in pinus Ponderosa, and p. Jeffreyi, and artemisia tridentata and purshia. 1128 Comment
  HSC92404  Lupinus lapidicola Jennifer Whipple 1976-6-11 965 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  SD88546  Lupinus lapidicola Darley F. Howe 1972-7-4 4869 Siskiyou Sanger Pass Road, stoney hilltop south of marker for Del Norte-Siskiyou county line on the road to Youngs Valley Comment
  RSA582445  Lupinus latifolius subsp. latifolius Louis C. Wheeler 1935-6-13 3573 Siskiyou Shackleford Creek. Marble Mtns. 976 Comment
  RSA237938  Lupinus latifolius subsp. viridifolius Frederick W. Oettinger 1969-7-13 1006 a Siskiyou The High lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, slope north of Upper English Lake. 1951 Comment
  SEINET10489289  Lupinus latifolius subsp. viridifolius Joseph W. Congdon 1900-8-9 Congdon s.n. Siskiyou Near sisson. Comment
  UC162165  Lupinus latifolius var. viridifolius Geo. D. Butler 1910-6-4 1489 Siskiyou Shackleford Creek Comment
  SEINET194957  Lupinus laxiflorus A. A. Heller 1938-7-12 15260 Siskiyou Border of a meadow east of Deer Mountain on the old U.S. Highway 97, toward Bray. 1402 Comment
  CAS-BOT-BC8339  Lupinus lelandsmithii L. E. Smith 1913-5-4 253 Siskiyou Hornbrook Comment
  SBBG10899  Lupinus lepidus var. sellulus H. and M. Dearing 1938-6-28 2180 Siskiyou McCloud Comment
  UC865268  Lupinus lepidus var. sellulus C. L. Hitchcock and J. S. Martin 1939-7-9 5323 Siskiyou 1/2 mi se King's Castle (Marble Mts.); , se of King's Castle 1828 Comment
  SEINET8056238  Lupinus lepidus var. sellulus G. D. Butler 1910-9-11 1867 Siskiyou Weed Comment
  UCD108577  Lupinus lepidus var. sellulus Freed W. Hoffman 1948-7-13 2652 Siskiyou north of Tennant on Butte Creek road. 1295 Comment
  UC1333309  Lupinus leucophyllus Dorothy Parker 1949-6-16 322 Siskiyou along the Etna-Callahan road Scott Valley 868 Comment
  UCD107955  Lupinus leucophyllus Freed W. Hoffman 1948-7-8 2417 Siskiyou Scott Bar Lodge, Scott River. Comment
  SEINET10485529  Lupinus leucophyllus var. belliae Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6978 Siskiyou Wester yellow pine, libocedrus, douglas fir forest, 6 mi. Sw of callahan. 1524 Comment
  RSA413776  Lupinus luteolus Bonnie C. Templeton 1960-6-21 8531 Siskiyou Between California State line and the Agricultural Inspection Station Comment
  RSA104335  Lupinus onustus A. A. Heller 1905-6-15 s.n. Siskiyou Near Sisson Comment
  RSA414230  Lupinus polyphyllus subsp. superbus M. B. Dunkle 1945-08 9294 Siskiyou Klamath National Forest Marble Mts. Comment
  CDA27573  Lupinus polyphyllus var. burkei T. C. Fuller 1964-6-24 12246 Siskiyou 0.2 mile south of Mugginsville, Quartz Valley. 0 Comment
  POM11085  Lupinus sellulus subsp. sellulus Geo. D. Butler 1910-9-11 1867 Siskiyou [Unspecified] Comment
  HSC92405  Lupinus sellulus subsp. ursinus Jennifer Whipple 1977-7-20 1979 Siskiyou South face of Mt. Eddy. 2470 Comment
  HSC42909  Luzula comosa J. O. Sawyer, K. T. Stillman 1976-5-28 2722 Siskiyou Along Rd. W of Sawyers Bar. 610 Comment
  CAS-BOT-BC436709  Luzula comosa var. laxa Alice Eastwood 1921-7-28 10908 Siskiyou Medicine Lake Comment
  HSC22266  Luzula parviflora J. O. Sawyer 1969-6-12 897 Siskiyou Along CCC rd. just S of Sugar Creek 1463 Comment
  JEPS84031  Luzula parviflora L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6414 Siskiyou ca 5 mi n of the town Seiad Valley (e slope Kangaroo Mountain, cirque at head of Hell's Canyon); e slope Kangaroo Mountain, cirque at head Hell's Canyon 1828 Comment
  RSA29686  Luzula parviflora L. C. Wheeler 1934-8-17 3184 Siskiyou Siskiyou Mts. North side White Mt. 1829 Comment
  HSC42948  Luzula spicata J. O. Sawyer, K. T. Stillman 1976-7-1 2768 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  HSC43059  Lycopus americanus K. T. Stillman 1976-8-24 450 Siskiyou Slopes on E and N sides of Williams Point 366 Comment
  SEINET2121892  Machaeranthera canescens M. L. Carson 1968-12-8 1294 Siskiyou US Highway 97 ca. 20 mi S of Macdoel and 7.8 mi N of junction of road to Yreka at Yellow Butte, close to Mount Shasta viewpoint before going down a long hill 1430 Comment
  RSA653985  Machaeranthera canescens var. canescens Beecher Crampton 1956-8-22 3864 Siskiyou South slope of Mt. Shasta, Wagon Camp Road, about 4 miles southwest of Panther Meadow 1829 Comment
  UCD131201  Machaeranthera canescens var. shastensis J. M. Tucker 1950-7-24 1949 Siskiyou beside Highway 89, 7.5 miles east of McCloud. Comment
  UC165406  Madia citriodora Geo. D. Butler 1910-5-19 1364 Siskiyou Yreka Comment
  HSC2256  Madia elegans Geo. D. Butler 1910-5-19 1364 Siskiyou Yreka Comment
  UC223696  Madia elegans Elmer I. Applegate 1923-9-7 3782 Siskiyou mouth of Doggett Creek; Klamath River Comment
  UC1212558  Madia elegans Francia Chisaki, Helen K. Sharsmith 1959-8-20 4737 Siskiyou ca. 4 mi w of Callahan; Wildcat Creek road Comment
  CAS-BOT-BC343430  Madia gracilis Alice Eastwood 1912-7-17 1148 Siskiyou Sisson Comment
  CAS-BOT-BC343432  Madia gracilis John Thomas Howell 1937-7-22 13320 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC78396  Madia gracilis L. P. Janeway 1983-9-23 691 Siskiyou At Poker Flat 1524 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
  HSC58936  Maianthemum racemosum subsp. amplexicaule Marvin Butler 1971-7-5 15 Siskiyou Near El Capitan Lake 1738 Comment
  RSA168939  Maianthemum racemosum subsp. amplexicaule Joseph P. Tracy 1951-6-16 19487 Siskiyou Summit of the Siskiyous, at crossing of Takilma-Happy Camp Road, near State Line 1463 Comment
  CAS-BOT-BC514180  Maianthemum stellatum John Thomas Howell 1937-7-25 13463 Siskiyou Caribou Basin, Salmon-Trinity Alps Comment
  CAS-BOT-BC514182  Maianthemum stellatum H. E. Brown 1897-6-1 340 Siskiyou Near Mount Shasta 2133 Comment
  RSA96706  Maianthemum stellatum Percy C. Everett, E. K. Balls 1954-10-13 20286 Siskiyou Indian Creek Rd., 16.7 mi NW of Happy Camp on Hwy 96. 1128 Comment
  RSA184733  Malva neglecta Gilbert Muth 1966-8-1 479 Siskiyou Marble Valley Horse Pasture, Marble Mountain, Siskiyou County 1793 Comment
  UC60891  Medicago lupulina W. A. Setchell, C. C. Dobie 1902-7-16 Siskiyou Sisson Mount Shasta Comment
  LA12116  Melica aristata J. R. Swallen; 1939-7-28 13783 Siskiyou Mount Shasta, vicinity of MacBride Springs 1523 Comment
  POM259099  Melica bulbosa C. L. Hitchcock, J. S. Martin 1939-7-9 5311 Siskiyou Between King's Castle and Black Mountains, west side of ridge. 1829 Comment
  SEINET185073 Image available Melica bulbosa C. L. Hitchcock, J. S. Martin 1939-7-9 5311 Siskiyou Between King's Castle and Black mtn. west side of Ridge. 1829 Comment
  UCD86367  Melica bulbosa AHM 1955-7-27 55 G Siskiyou Klamath National Forest. Marble Mountains.Pierce's Draw Meadow. 1676 Comment
  CAS-BOT-BC282074  Melica fugax Geo. D. Butler 1910-4-30 1251 Siskiyou Yreka Comment
  UC167206  Melica fugax Geo. D. Butler 1909-5-26 824 Siskiyou near Yreka Comment
  UC593537  Melica fugax E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2007 Siskiyou about 1.5 mi w Mt. Shasta City (e and ne slope of spur of Rainbow Ridge, above Sulloway Creek); Rainbow Ridge 1188 Comment
  RSA239101  Melica harfordii Frederick W. Oettinger 1969-8-3 1143 Siskiyou Above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC1265410  Melica subulata F. W. Oettinger 1969-8-16 1394 Siskiyou near English Lake (sw of Wiregrass Meadow); Salmon Mtns 1676 Comment
  RSA715636  Melilotus indicus L. Ahart, John Dittes 2005-6-9 12011 Siskiyou On the east side of a poor rock fence, about 350 yards E 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
  UC1714375  Mentha aquatica Louis C. Wheeler 1934-9-22 3299 Siskiyou Klamath River Walker (Walker); Siskiyou Mts., Klamath River 518 Comment
  POM211269  Mentha spicata Louis C. Wheeler 1934-9-22 3301 Siskiyou Walker, Klamath River, Siskiyou Mountains. (Mt Diablo Mer) 518 Comment
  RSA17719  Mentzelia laevicaulis Elmer I. Applegate 1923-8-6 3938 Siskiyou Klamath River, 12 miles below mouth of Shasta River. Comment
  CAS-BOT-BC428545  Micranthes aprica G. J. Muth 1969-8-10 1323 Siskiyou Ridge w. of Boulder Peak Comment
  CAS-BOT-BC428551  Micranthes aprica A. A. Heller 1915-7-15 12081 Siskiyou Mt. Eddy 2072 Comment
  CAS-BOT-BC428977  Micranthes ferruginea K. T. Stillman 1976-7-31 351 Siskiyou Marble Mountain Wilderness Area. East-facing ridge north from Black Mt. towards Jump off point. 2103 Comment
  CAS-BOT-BC429157  Micranthes odontoloma Annie M. Alexander; Louise Kellogg 1949-7-24 5859 Siskiyou Trail to Bear Lake, Paradise Lake, Marble Mountains. 1920 Comment
  CAS-BOT-BC506661  Micranthes odontoloma Dana York 2011-8-14 3077 Siskiyou Marble Mountain Wilderness, Klamath National Forest. Marble Valley, just below the PCT 1730 Comment
  CAS-BOT-BC429261  Micranthes oregana Alice Eastwood 1923-5-22 11890 Siskiyou Sissons [Sisson] Comment
  CAS-BOT-BC322662  Microseris laciniata K. L. Chambers 1969-5-26 2933 Siskiyou Salmon River, between Somes Bar and Forks of the Salmon, 1.3 miles east of Lewis Creek Comment
  POM35781  Microseris laciniata subsp. laciniata Geo D. Butler 1910-5-28 1420 Siskiyou Shasta Valley Comment
  CAS-BOT-BC349378  Microseris nutans Ira L. Wiggins 1955-7-27 13520 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC36931  Microsteris gracilis J. P. Smith 1974-5-26 7559 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC92094  Microsteris gracilis Jennifer Whipple 1976-7-2 1281 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC726472  Mimulus arvensis A. A. Heller 1919-6-20 13526 Siskiyou Metcalf's Comment
  UC164368  Mimulus breweri Geo. D. Butler 1910-7-9 1733 Siskiyou Upper Campbell Lake Shackleford Creek 1371 Comment
  SEINET11262493  Mimulus cardinalis Alv Dan Youngberg 1964-6-21 57 Siskiyou Humbolt Meridian.; 0 427 Comment
  RSA237546  Mimulus guttatus Frederick W. Oettinger 1967-8-13 255 Siskiyou Below spring at Tom Taylor Cabin. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  UC164369  Mimulus layneae Geo. D. Butler 1910-9-11 1865 Siskiyou Weed Comment
  POM252819  Mimulus layneae A. A. Heller 1938-7-12 15248 Siskiyou 5 miles north of Weed on US Hwy no. 97. 1067 Comment
  RSA211426  Mimulus moschatus William J. Ferlatte 1967-8-19 1035 Siskiyou Trinity Alps: Along the South Fork of the Salmon River between the campground and Carter's. 1524 Comment
  UC1177935  Mimulus nanus var. jepsonii Francia Chisaki, Gene B. Newcomb 1958-6-21 1149 Siskiyou n McCloud (on road to Ice Cave); Squaw Valley Creek 1158 Comment
  UC1608335  Mimulus nanus var. jepsonii J. Kierstead 1990-5-8 90 -52 Siskiyou Upper Falls of the McCloud River Shasta-Trinity National Forests, McCloud Ranger District 1097 Comment
  RSA535617  Mimulus nanus var. jepsonii David M. Thompson 1988-6-4 931 Siskiyou Ca. 1.5 air mi SE of Deadhorse Summit. 1.3 mi NW of Shasta Co. line along Hwy 89. 1300 Comment
  JEPS60238  Mimulus nanus var. nanus L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2292 Siskiyou n Mt. Shasta (along U.S. Highway 97, 0.2 mi n of Yreka road junction) Comment
  HSC29400  Mimulus primuloides var. primuloides Frederick W. Oettinger 1968-8-14 519 Siskiyou High Lake Basins: Bear Meadow, Tom's Lake region 2188 Comment
  UC922334  Mimulus tilingii var. corallinus Annie M. Alexander and Louise Kellogg 1949-7-22 5833 Siskiyou edge of small stream which arises from spring at lower end of Paradise Lake; Marble Mountains, Paradise Lake 2072 Comment
  CAS-BOT-BC388880  Minuartia douglasii A. A. Heller 1905-6-20 8084 Siskiyou About midway between Igerna and Weed Comment
  UC1112865  Minuartia douglasii Milo S. Baker 1957-6-16 13155 Siskiyou trip from turnoff near Callahans to Scott Mts.; North Coast Ranges Comment
  UC1540135  Minuartia nuttallii subsp. gregaria Dean Wm. Taylor and Rexford E. Palmer 1987-8-8 9261 Siskiyou Lyons Peak Medicine Lake volcanic highland region (extreme ne portion of co.) 2407 Comment
  CAS-BOT-BC540350  Minuartia rubella Dana York 2012-7-20 3127 Siskiyou Siskiyou Mountains: Rogue River, Siskiyou National Forest, ca. 270 m W of Echo Lake (slopes above lake) 1800 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
  HSC92011  Minuartia stolonifera Thomas W. Nelson, Jane P. Nelson 1982-7-30 7312 Siskiyou Along SR 3 2.2 mi. N of Scott Mtn. Pass 1372 Comment
  CAS-BOT-BC229605  Mirabilis greenei Elmer I. Applegate 1898-5-15 5142 Siskiyou Along Klamath River between Shovel Creek and Fall Creek 853 Comment
  RSA468283  Mitella Louis C. Wheeler 1934-6-19 2737 Siskiyou North Hungry Creek. Siskiyou Mtns. 1098 Comment
  CAS-BOT-BC433015  Mitella diversifolia Roxana S. Ferris; Laura Lorraine 1948-6-12 11783 Siskiyou Small tributary of Etna Creek below Mill Creek Bridge 1066 Comment
  JEPS26520  Mitella diversifolia Lauramay T. Dempster 1961-7-2 1850 Siskiyou Mill Creek; at road crossing sw of Etna Comment
  HSC29441  Mitella pentandra Frederick W. Oettinger 1968-8-10 459 Siskiyou High Lake Basins near English Peak, Marble Mountain Wilderness Area; along the old trail between Hancock Lake and Diamond Lake 1974 Comment
  CAS-BOT-BC433076  Mitella trifida John Thomas Howell 1937-7-22 13261 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  RSA237687  Mitella trifida Frederick W. Oettinger 1969-8-22 1484 Siskiyou Head of Pierce s Draw. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  UC609332  Monardella Eleanor Burks Hart 1938-8-22 920 Siskiyou n. side Upper Wright Lake 2225 Comment
  UC2035944  Monardella odoratissima subsp. glauca W. Bridge Cooke 1940-7-26 15361 Siskiyou Near Black Butte Spring Comment
  CAS-BOT-BC222178  Monardella odoratissima subsp. pallida A. A. Heller 1915-8-26 12230 Siskiyou North side of Mt. Eddy 1981 Comment
  UC2035852  Monardella odoratissima subsp. pallida W. Bridge Cooke 1940-7-5 15248 Siskiyou Along the road between Wagon Camp and Bear Springs (and near those two meadows); Mount Shasta Comment
  CAS-BOT-BC220264  Monardella sheltonii Geo. B. Grant 1902-9-14 s.n. Siskiyou Dunsmuir Comment
  JEPS63378  Monardella villosa subsp. villosa Geo. D. Butler 1908-7-19 169 Siskiyou Humbug Creek Comment
  RSA29914  Montia fontana L. C. Wheeler 1935-4-13 3415 Siskiyou Siskiyou Mountains: Seiad Creek, Klamath River. 426 Comment
  UC166171  Montia linearis Geo. D. Butler 1909-3-14 680 Siskiyou McDutty's upper field near Yreka Comment
  CAS-BOT-BC445204  Montia parvifolia W. R. Dudley 1893-6-23 s.n. Siskiyou Castle Crag, region of Mt. Shasta Comment
  RSA273301  Muhlenbergia asperifolia J. P. Smith, Steve Selva 1970-8-9 4582 Siskiyou West of Macdoel. Comment
  UC1132354  Muhlenbergia asperifolia H. S. Yates 1936-6-21 5815 Siskiyou 6 mi n Gazelle; Yreka Quadrangle Comment
  POM206717  Muhlenbergia filiformis Copeland 1903-9-6 3788 Siskiyou Mt. Eddy Comment
  RSA603014  Muhlenbergia filiformis L. C. Wheeler 1935-7-26 3703 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  UC204922  Muhlenbergia filiformis unknown 11704 Siskiyou near Deetz Station (6 mi n of Sisson) Comment
  UC53720  Muhlenbergia filiformis unknown Aug 1894 Siskiyou Shasta Comment
  UCD86715  Muhlenbergia filiformis R. Tofsrud 1950-7-1 s.n. Siskiyou E. side of Mt. Shasta. Comment
  CAS-BOT-BC267047  Muhlenbergia filiformis A. A. Heller 1914-8-25 11704 Siskiyou Near Deetz station, near Black Butte 6 miles N of Sisson 1158 Comment
  JEPS20036  Myosurus minimus George D. Butler 1909-4-4 551 Siskiyou Block 5, Yreka Yreka Comment
  JEPS69761  Nama densa var. parviflora W. B. and V. G. Cooke 1972-6-30 45412 Siskiyou above Andesite Crossing (Mount Shasta, Military Pass Road); Mount Shasta, Military Pass Road 1524 Comment
  CHSC33986  Nama lobbii J. D. Prouty 1979-8-22 7908221 Siskiyou E slopes of Mt. Shasta. 1950 Comment
  RSA68893  Nama lobbii A. E. Culbertson 1943-7-1 64 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 airmiles of its headwaters to the west. Comment
  SDSU6068  Nama lobbii D. F. Howe 1979-6-26 Siskiyou 3 miles north of Mc Cloud, Siskiyou Co. 1554 Comment
  HSC58938  Narthecium californicum Marvin Butler 1971-7-28 219 Siskiyou Near El Capitan 1524 Comment
  CAS-BOT-BC515775  Narthecium californicum Dorothy Parker 1959-7-20 735 Siskiyou Below Rock Fence Lake 1828 Comment
  RSA760958  Narthecium californicum Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63388 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1890 Comment
  SEINET8501736  Narthecium californicum W. Roderick 1967-7-28 s.n. Siskiyou Gumboat Lake, SW of Mt. Eddy. 1829 Comment
  UC1540246  Navarretia capillaris Dean W. Taylor 1987-6-26 9077 Siskiyou 2 mi se from Medicine Lake (Paynes Springs); se from Medicine Lake, Paynes Springs 1996 Comment
  POM75694  Navarretia intertexta Geo D. Butler 1910-7-20 1730 Siskiyou Goosenest foothills. 1524 Comment
  HSC93079  Nemophila pedunculata Jennifer Whipple 1976-7-2 1278 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  HSC43147  Nicotiana acuminata Ken Stillman 1976-8-24 423 Siskiyou Along Klamath River at Williams Point. 366 Comment
  UC163711  Nicotiana attenuata Geo. D. Butler 1908-6-28 17 Siskiyou near Oro Fino Comment
  HSC75106  Noccaea fendleri subsp. glauca J. P. Smith, Thomas W. Nelson 1979-6-16 10136 Siskiyou Klamath National Forest, along Hwy. 3, 3.1 mi. from the Scott Mtn. summit. 1280 Comment
  HSC19125  Nothochelone nemorosa J. O. Sawyer 1969-8-18 1979 Siskiyou S of S Sugar Lake 2104 Comment
  HSC4879  Nothochelone nemorosa J. O. Sawyer 1968-9-9 651 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC76727  Nothochelone nemorosa K. T. Stillman 1976-8-8 396 Siskiyou Marble Mountain Wilderness Area. Trail to jump off to Paradise Lake. Comment
  POM250708  Nothochelone nemorosa D. D. Keck 1938-8-6 4821 Siskiyou At Del Norte Co. line, Poker Flat, on north slope just SE of summit. Siskiyou Mts. 1402 Comment
  SD88339  Nothochelone nemorosa Darley F. Howe 1972-7-7 Siskiyou 1.4 miles south of Oregon state line on road to Happy Camp 1646 Comment
  UCD110211  Notholithocarpus densiflorus R. Tofsrud; J. M. Tucker 1948-8-3 1775 Siskiyou 6.7 miles (by road) below summit of Happy Camp-Waldo (Oregon) road. Comment
  HSC59711  Notholithocarpus densiflorus var. echinoides Clark L. Miller 1978-10-21 79 Siskiyou French Camp Rd. off Hwy. 199, E of Hwy. 101 549 Comment
  HSC41047  Oemleria cerasiformis J. O. Sawyer 1970-3-4 2066 Siskiyou N of Idlewild Campground 762 Comment
Read comments
Mar 12 2012
  RSA60643  Oenothera deltoides subsp. piperi Dorothy Parker 1948-6-22 27 Siskiyou Between Dorris and Macdoel, Butte Valley 1220 Comment
  CHSC1155  Oenothera elata subsp. hirsutissima K. Jaekel; N. Jaekel 1939-7-14 Siskiyou Near Mt. Shasta. 1097 Comment
  UCR9593  Onopordum acanthium D. O. Clark 1970-6-23 s.n. Siskiyou 6 mi SW of Dorris, along roadside on W side of Butte Valley 1293 Comment
  UC1276071  Onopordum tauricum T. C. Fuller 1959-12-10 3324 Siskiyou just s of Sam's Neck; Fred Voelker ranch, Meiss Lake Basin, Dorris Comment
  SEINET3163879  Oreobroma howellii G. D. Butler 1910-6-5 1527 Siskiyou Loy Lake Comment
  SEINET8245378  Oreostemma alpigenum A. A. Heller 1915-8-26 12225 Siskiyou Heather meadow near the head of Wagon creek canyon; Mt. Eddy. 2591 Comment
  CAS-BOT-BC355592  Oreostemma alpigenum var. andersonii Doris K. Kildale 1928-8-19 6520 Siskiyou English Lake, head of north fork of Salmon River Comment
  UC595071  Oreostemma alpigenum var. andersonii David D. Keck 1938-8-8 4868 Siskiyou between Craggy Peak and Scott Mountain divide, at Trinity Co. line Craggy Peak; Trinity Co. line, Scott Mountain 1675 Comment
  HSC91957  Orobanche fasciculata Jennifer Whipple 1976-7-13 1457 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River. 2256 Comment
  HSC296  Orthilia secunda William J. Ferlatte 1966-8-17 394 Siskiyou Caribou Basin 2134 Comment
  HSC44587  Orthilia secunda Laura Witherspoon 1977-7-8 Siskiyou Periphery of Flint Valley 1341 Comment
  HSC61510  Orthilia secunda Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  JEPS82433  Orthilia secunda Gilbert Muth 1966-7-29 463 Siskiyou Marble Valley, by waterfall, Marble Mt. Wilderness Area 1828 Comment
  UCSB24414  Orthilia secunda Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  CAS-BOT-BC458078  Orthilia secunda Milo S. Baker 1926-8-21 307 -26 Siskiyou Near Sulphur Springs, 9.5 miles from Mineral 2072 Comment
  UC1313001  Orthocarpus cuspidatus subsp. copelandii J. M. Tucker and L. K. Mann 1963-8-17 3741 Siskiyou beside trail to top of ridge to s from Red Rock Valley (Marble Mountain Wilderness ARea); Marble Mountain Wilderness Area, trail fr Red Rock Valley 1859 Comment
  JEPS84028  Orthocarpus cuspidatus subsp. cuspidatus L. R. Heckard with J. Hickman et al. 1986-7-17 6498 Siskiyou ca 14.5 mi from Hwy 96 (Walker) near Dry Lake (Oak Knoll Ranger Station road to Condrey Mt.); near Dry Lake, road to Condrey Mt. 2000 Comment
  JEPS4515  Orthocarpus imbricatus Alice Eastwood 1912-7-15 1066 Siskiyou McCloud Comment
  HSC4881  Osmorhiza berteroi J. O. Sawyer 1968-7-2 378 Siskiyou Upper drainage of Joe Creek 1677 Comment
  HSC78374  Osmorhiza berteroi L. P. Janeway 1983-9-11 657 Siskiyou Poker Flat 1524 Comment
  UC642517  Osmorhiza berteroi W. Bridge Cooke 1939-6-23 13546 Siskiyou upper Wagon Camp meadow Mount Shasta Comment
  CAS-BOT-BC94388  Osmorhiza occidentalis R. C. Wenk 2005-6-17 167 Siskiyou Trinity Alps, South Fork of the Salmon River, near Big Flat Campground at the southern end of Big Flat Meadow 1517 Comment
  HSC313  Oxyria digyna William J. Ferlatte 1966-8-5 350 Siskiyou Caribou Mountain summit 2470 Comment
  JEPS50867  Oxyria digyna Al Hobart 1967-8-8 Siskiyou n side El Capitan (just s of Youngs Valley); western Siskiyou Mountains, n side El Capitan 1828 Comment
  CAS-BOT-BC316752  Packera cana William Bridge Cooke 1939-8-10 13874 Siskiyou Scattered in a small colony along the west bank of Mud Creek Canyon. Upper Hudsonian Zone 2895 Comment
  UCSC004597  Panicum capillare Randall Morgan 2004-8-3 4273 Siskiyou Castle Crags State Park, Sacramento River Comment
  SD46544  Papaver rhoeas E. K. Balls, L. W. Lenz 1956-6-18 21719 Siskiyou U. S. Highway 99, Gazelle. 822 Comment
  CAS-BOT-BC175618  Parnassia palustris Milo S. Baker 1926-8-8 254 -'26 Siskiyou Meadow bet. Red Mt. & Granite Peak 2194 Comment
  HSC29457  Parnassia palustris Frederick W. Oettinger 1968-8-3 377 Siskiyou Marble Mountain Wilderness, base camp near Diamond Lake. 2012 Comment
  CDA34723  Pastinaca sativa L. Ahart, John Dittes 2010-7-3 16937 Siskiyou West of the pipe crossing the Shasta River, about 10 yards south the Shasta River, about 300 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. Comment
  CAS-BOT-BC202867  Paxistima myrsinites W. R. Dudley 1893-6-20 s.n. Siskiyou Castle Lake Trail, near Mt. Shasta Comment
  JEPS45932  Paxistima myrsinites Rimo Bacigalupi and L. R. Heckard 1966-6-12 9176 Siskiyou ca. 0.8 mi. n.w. of town Mt. Shasta (Sisson) (in City Park, just above Big Springs) 1097 Comment
  UC61045  Paxistima myrsinites W. A. Setchell, C. C. Dobie 1902-7-14 Siskiyou Mt. Shasta, Sisson Comment
  UC635621  Paxistima myrsinites H. L. Mason 1929-5-18 5329 Siskiyou hills along Shasta Creek Canyon Shasta Creek Canyon Comment
  SEINET6646339  Paxistima myrsinites G. D. Butler 1910-4-22 1219 Siskiyou Kidder Creek Comment
  CAS-BOT-BC266635  Pedicularis A. A. Heller 1914-8-28 11726 Siskiyou E side of Mount Eddy 1584 Comment
  HSC91018  Pedicularis attollens Jennifer Whipple 1977-7-21 2014 Siskiyou Near Durney Lake 2073 Comment
  CAS-BOT-BC266653  Pedicularis bracteosa var. flavida Gilbert Muth 1969-8-11 s.n. Siskiyou Beneath high point of ridge S of Boulder Peak Comment
  HSC77143  Pedicularis contorta J. O. Sawyer 1969-8-2 1706 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  UC1333319  Pedicularis densiflora Dorothy Parker 1949-5-26 Siskiyou Sugar Creek; Salmon Mountain Range 1676 Comment
  RSA211398  Pedicularis flavida William J. Ferlatte 1966-8-17 387 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  RSA0018475  Pedicularis howellii James R. Shevock 2012-7-20 40552 Siskiyou Rocky slope above Echo Lake on ridge, east of Red Buttes Wilderness and west of Cook and Green Pass, Applegate River Drainage. 1777 Comment
  POM15938  Pedicularis racemosa E. B. Copeland 1903-8-17 3904 Siskiyou Mt Eddy. 1463 Comment
  UCR37853  Pedicularis racemosa K. T. Stillman 1976-7-21 271 Siskiyou Marble Mountain Wilderness Area 1982 Comment
  UCR208056  Pellaea brachyptera L. C. Wheeler 1934-8-30 3227 Siskiyou Siskiyou Mountains, Trapper Creek 1372 Comment
  JEPS84173  Pellaea breweri L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6403 Siskiyou ca. 5 mi n of town of Seiad Valley (cirque at head of Hell's Canyon) 1750 Comment
  UC922431  Pellaea breweri Annie M. Alexander and Louise Kellogg 1949-7-24 5861 Siskiyou trail to Bear Lake Paradise Lake; Marble Mts 1920 Comment
  JEPS84083  Penstemon anguineus L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6294 Siskiyou Indian Creek Road from Takilma to Happy Camp (just s of state line); Indian Creek Road fr Takilma to Happy Camp 1420 Comment
  UC1585393  Penstemon anguineus R. Raiche, K. Zadnik, and H. Forbes 1989-10-3 UCBG 49 Siskiyou n Seiad Valley (at Cook and Green Pass); Cook and Green Pass 1425 Comment
  UC1586979  Penstemon anguineus Juha Pykala and D. H. Norris 1987-6-26 2116 Siskiyou 0-3 km below Bear Lake (above Bear Creek, sw slopes); Marble Mountain Wilderness area Comment
  JEPS74563  Penstemon anguineus W. J. Ferlatte 1966-8-5 325 Siskiyou n side Caribou Mtn Trinity Alps, n side of Caribou Mtn 1981 Comment
  UC1238941  Penstemon anguineus Freed W. Hoffman 1940-7-11 3489 Siskiyou Cedar Camp road 23.9 mi n Klamath Highway (western Siskiyou County); North Coast Ranges, n of Klamath Highway Comment
  NY571152  Penstemon azureus var. azureus R. Van Deventer 1938-7-31 296 Siskiyou Twin Valley Ridge 1280.2 Comment
  HSC43259  Penstemon deustus K. Irwin 1977-5-22 382 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  CHSC69095  Penstemon deustus var. pedicellatus Vernon Oswald 1997-7-28 8775 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi south of Medicine Lake. 1365 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
  HSC67817  Penstemon gracilentus J. O. Sawyer, J. Cole 1980-7-20 3781 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  HSC69372  Penstemon gracilentus J. O. Sawyer, J. Cole 1980-7-19 3675 Siskiyou Near FS Rd. 45N05 2018 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
  POM188149  Penstemon gracilentus Marcus E. Jones 1931-7-17 28827 Siskiyou Shasta City (Session's). Comment
  NY601603  Penstemon heterodoxus var. shastensis W. L. Jepson 1940-7-3 20106 Siskiyou 5 miles southeast of Bartle, Big Bear Flat 1219.2 Comment
  JEPS44098  Penstemon laetus var. sagittatus W. B. and V. G. Cooke 1965-7-17 35178 Siskiyou Bolam Road , Bolam Road (Mt. Shasta) 1524 Comment
  SJSU6078  Penstemon laetus var. sagittatus R. W. Trivelpiece 1971-7-14 50 Siskiyou Blue Ridge SW of Eddy Gulch Lookout between Sawyers Bar & Cecilville, Salmon R Mts 1066 Comment
  UC54634  Penstemon laetus var. sagittatus H. M. Hall and E. B. Babcock June, 1903 4030 Siskiyou Sacramento River near Dunsmuir; Upper Sacramento Valley, Sacramento River 609 Comment
  UCD69102  Penstemon laetus var. sagittatus D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-11 s.n. Siskiyou Siskiyou: Mount Shasta-Shasta Peak. J. Everitt Memorial Highway. White fir forests (Castanopsio sempervirentis-Abietetum lowianae Rivas-Martinez and Sanchez-Mata 1997). 1520 Comment
  CHSC31046  Penstemon newberryi M. S. Taylor; W. Overton 1980-7-8 3089 Siskiyou On n side of 40N43 at point in rd, ca. 2.4 mi w of its jct with 40N26 at w end of Lake Siskiyou. 1341 Comment
  HSC86631  Penstemon newberryi D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta, S side of Red Butte 2134 Comment
  CAS-BOT-BC239336  Penstemon newberryi var. berryi Donald Myrick 1961-6-19 266 Siskiyou On road to Mt. Shasta Ski Bowl Comment
  CAS-BOT-BC239343  Penstemon newberryi var. berryi Wm. Bridge Cooke 1938-6-17 11010 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  CHSC99700  Penstemon parvulus L. P. Janeway 2008-7-24 9488 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. Open ridgetop. 2050 Comment
  JEPS104858  Penstemon parvulus Dean W. Taylor 1996-7-7 15813 Siskiyou Salmon Mountains; Ruffey Lakes (about 8 air miles southwest of Etna), in cirque above the upper lake; Klamath National Forest 2072 Comment
  POM259370  Penstemon parvulus J. T. Howell 1939-8-2 14899 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  UC1017676  Penstemon parvulus Marion Ownbey and Ruth P. Ownbey 1938-7-19 1749 Siskiyou 2 1/2 mi nw Dry Lake Lookout (summit of the Siskiyou Mountains); , nw of Dry Lake Lookout 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
  NY638947  Penstemon procerus var. brachyanthus F. W. Pennell 1940-7-17 26180 Siskiyou Above Ruffy Lake, Salmon Mountains, west of Etna 1981.2 Comment
  UC27495  Penstemon procerus var. formosus Harley P. Chandler June 1901 1639 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges, near Marble Mountain 2133 Comment
  CHSC86679  Penstemon roezlii Jenny Marr 1993-7-1 65 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC163814  Penstemon roezlii Geo. D. Butler 1909-6-22 933 Siskiyou foothills of Goosenest Mt. Goosenest Mountain Comment
  UC163815  Penstemon roezlii Geo. D. Butler 1901-6-23 1601 Siskiyou Yreka Creek Comment
  HSC101872  Penstemon rupicola R. D. Whittlesey 2013-6-4 2 Siskiyou Near Castella: 3.1 mi. north from State Park entrance up Castle Dome Trail. 1187 Comment
  UC722171  Penstemon rupicola C. L. Hitchcock, J. S. Martin 1939-7-7 5292 Siskiyou Sanger Peak Comment
  UC1278812  Penstemon rydbergii var. oreocharis David D. Keck 1940-6-13 5172 Siskiyou Grass Lake; ; Grass Lake, Siskiyou Co. 1539 Comment
  RSA32484  Penstemon shastensis C. Edward Graves 1944-08 s.n. Siskiyou Mt Shasta. Comment
  HSC21060  Penstemon speciosus R. C. Wunner 1965-6-29 291 Siskiyou California Lava Beds National Monument, 1/2 mi. above Mammoth Crater at Tichner Junction 1616 Comment
  UC535906  Perideridia howellii Elmer I. Applegate 1923-8-21 3915 a Siskiyou s Lower Klamath Lake; Willow Creek Comment
  HSC404  Perideridia parishii subsp. latifolia William J. Ferlatte 1966-8-16 371 Siskiyou Big Flat, between campground and S Fork of the Salmon River. 1524 Comment
  CAS-BOT-BC419263  Persicaria maculosa Doris K. Kildale 1928-7-25 5987 Siskiyou Klamath River, Mack's Creek near Hamburg 457 Comment
  CDA15529  Phacelia bolanderi G. F. Hrusa 1998-7-5 14697 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 4.x. Comment
  JEPS81095  Phacelia bolanderi D. H. Norris 1970-5-23 12236 Siskiyou Ishi Pishi Bridge Klamath River (near Somes Bar) Comment
  SD120823  Phacelia corymbosa L. R. Heckard 1967-8-13 1694 Siskiyou Near Summit Mt Eddy, south facing slope 2713 Comment
  CDA12115  Phacelia hastata G. F. Hrusa 1990-4-2 7839 Siskiyou Siskiyou Mountains; Old Shasta River Rd. (Hwy 263) approx. 3 m. S of intersection w/Hwy 96, and 10 miles N of Yreka. Comment
  RSA184649  Phacelia hastata subsp. hastata Clare B. Hardham 1965-8-20 13014 Siskiyou Cudahy Lakes Comment
  HSC67637  Phacelia heterophylla subsp. virgata J. P. Smith, Steve Selva 1970-6-16 4044 Siskiyou Etna 897 Comment
  RSA211171  Phacelia humilis var. humilis W. J. Ferlatte 257 Siskiyou Mountain Meadow Ranch. 1524 Comment
  SJSU6059  Phacelia linearis R. W. Trivelpiece 1971-6-28 41 Siskiyou N of Alder Cr divide between Whaleback & Haight Mt c. 15 mi N of Mt Shasta 1524 Comment
  SEINET3158192  Phacelia magellanica f. virgata G. D. Butler 1910-5-22 1386 Siskiyou Yreka Creek Comment
  UC1034049  Phacelia mutabilis W. Bridge Cooke 1941-9-10 16308 Siskiyou vicinity of Horse Camp Mt. Shasta Comment
  UC711858  Phacelia mutabilis Roxana S. Ferris and Laura Lorraine 1941-8-11 10506 Siskiyou slopes above Medicine Lake; Shasta National Forest Comment
  UC909977  Phacelia mutabilis A. A. Heller 1915-8-26 12231 Siskiyou n side Mt. Eddy 1981 Comment
  UC923133  Phacelia mutabilis Freed W. Hoffman 1950-7-13 3337 Siskiyou Baldy Mountain Lookout North Coast Ranges (w Siskiyou Co.) 1737 Comment
  JEPS25671  Phacelia mutabilis Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7316 Siskiyou near but not on small serpentine area at ridge-top marking Del Norte-Siskiyou Co. boundary Siskiyou Mts. (which is followed by jeep road between Poker Flat and Twin Valley) 1664 Comment
  UC923142  Phacelia mutabilis Freed W. Hoffman 1950-7-13 3336 Siskiyou Clear Creek trail from Baldy Lookout North Coast Ranges (w Siskiyou Co.) 1524 Comment
  HSC75108  Phacelia pringlei J. P. Smith, Thomas W. Nelson 1979-6-16 10138 Siskiyou Klamath National Forest; S.R. 3, 2.7 miles from the Scott Mtn.summit 1341 Comment
  HSC62290  Phacelia procera Al Hobart 1969-8-8 Siskiyou Youngs Valley Comment
  HSC62291  Phacelia procera Ruby Van Deventer 1960-7-7 Siskiyou Youngs Valley Comment
  RSA238842  Phacelia procera Frederick W. Oettinger 1969-7-18 1056 Siskiyou At base of rocky steep cliffs southwest of Upper English Lake. The High Lake Basins in the vicinity of English Peak, Marble Mountains Wilderness Area. 1829 Comment
  CAS-BOT-BC159068  Phacelia ramosissima var. eremophila Wm. Bridge Cooke 1940-6-20 15135 Siskiyou Near a spring along the Pacific Highway in Gorge at confluence of Shasta and Klamath Rivers 609 Comment
  UC11453  Philadelphus lewisii M. A. Howe Jul 24 1894-Aug 10 1894 Siskiyou river bank near Sims; Region of the Upper Sacramento Comment
  UC1409254  Philadelphus lewisii Frederick W. Oettinger 1968-9-8 793 Siskiyou Abbott's Lake Salmon Mountains, Marble Mountain Wilderness Area (e side, high lake basins in vicinity of English Peak, w Siskiyou Co.) 1737 Comment
  UC165383  Philadelphus lewisii Geo. D. Butler 1908-8-11 87 Siskiyou Shackleford Creek Quartz Valley Comment
  UCR222480  Philadelphus lewisii R. F. Thorne 1969-8-2 63398 Siskiyou Klamath Ranges Region; Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, trail to English Peak, along N fork of Salmon River at Cedars 1159 Comment
  RSA0058050  Philadelphus lewisii Gilbert Muth 1965-8-3 149 Siskiyou Down creek from Marble Valley, Marble Mts. Comment
  CAS-BOT-BC250791  Phleum alpinum L. R. Short 1933-9-9 65 Siskiyou Rogue River. Aleck's Hole 1889 Comment
  UC188948  Phleum alpinum Milo S. Baker 1898-8-1 488 Siskiyou Medicine Lake Comment
  UCD77913  Phleum alpinum Robert E. Preston 2001-6-23 1605 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 2011 Comment
  CAS-BOT-BC250947  Phleum pratense T. H. Gilbert 1899-6-15 57 Siskiyou Scott River Valley Comment
  UC917324  Phlox R. Tofsrud and J. M. Tucker 1948-8-2 1762 Siskiyou Panther Meadows, s slope of Mt. Shasta Mt. Shasta 2407 Comment
  SJSU2560  Phlox adsurgens H. L. Buckalew 1962-7-7 Siskiyou junction of Indian Cr & W Branch Indian Cr, Siskiyou Mts Comment
  CDA40295  Phlox adsurgens D. H. Shaw 1977-5-26 s.n. Siskiyou Southeast of Seiad Valley on Walker Creek, western part of county. 0 Comment
  HSC27689  Phlox adsurgens Carl W. Mize 1972-6-8 39 Siskiyou Along main trail 1/2 mi. before Deer Lick Creek 396 Comment
  HSC113  Phlox diffusa William J. Ferlatte 1966-6-23 128 Siskiyou Yellow Rose Mine 1982 Comment
  HSC44975  Phlox diffusa J. O. Sawyer, E. Cope 1977-6-20 2969 Siskiyou Along W slopes of Bear Mtn. 1829 Comment
  HSC92076  Phlox diffusa Jennifer Whipple 1976-6-12 979 Siskiyou SE slope of Mt. Eddy draining into the N Fork of the Sacramento River 2195 Comment
  JEPS69941  Phlox diffusa W. L. Jepson 1940-6-27 20042 Siskiyou e slope Mt. Shasta 1828 Comment
  RSA262361  Phlox douglasii subsp. rigida Sandra Holloway 1963-4-10 23 Siskiyou Humbug Road, 1.5 miles west of Hawkinsville 915 Comment
  JEPS71115  Phlox gracilis J. W. Kisling Mar 1910 Siskiyou Edgewood Comment
  HSC32071  Phlox speciosa subsp. occidentalis Glenn McGourty 1974-5-25 71 Siskiyou On Rd. 8, 0.9 mi. from jct. with Hwy. 3 976 Comment
  SEINET7073525  Phlox speciosa subsp. occidentalis A. G. Vestal 1963-6-3 s.n. Siskiyou Lava boulders south of Gazelle. UTM Zone 10, 544048mN, 4590451mN. Coordinate datum: NAD27. Comment
  UC585232  Phlox speciosa subsp. occidentalis E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1943 Siskiyou 8 mi s Yreka 822 Comment
  RSA104265  Phlox speciosa subsp. occidentalis Elizabeth Sprague 1956-6-3 s.n. Siskiyou 10 miles south of Yreka on Highway 99 Comment
  SFV1505  Phoenicaulis cheiranthoides D. Parker 1958-4-13 629 Siskiyou Near Callahan. 957 Comment
  RSA15797  Phoradendron villosum Carl B. Wolf 1927-8-26 1038 Siskiyou On the Klamath River, 4 mi N of Gottville. Comment
  CAS-BOT-BC56504  Phyllodoce empetriformis W. B. C. 1938-7-21 11291 Siskiyou Panther Creek Heather Meadow 2286 Comment
  UC246671  Phyllodoce empetriformis H. E. Brown Jun 11 1897-Jun 16 1897 459 Siskiyou n side of Mount Shasta Mount Shasta 1524 Comment
  CAS-BOT-BC140609  Physocarpus capitatus C. H. M. 1907-9-26 s.n. Siskiyou Shovel Creek, Klamath Canyon Comment
  CAS-BOT-BC140610  Physocarpus capitatus A. A. Heller 1915-7-18 12109 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC31543  Physocarpus capitatus Steve Selva, Roger Jensen 1974-8-23 38 Siskiyou Along trail to Devils Punchbowl Comment
  JEPS44812  Physocarpus capitatus W. L. Jepson 1894-8-9 13846 Siskiyou Shasta Springs Comment
  RSA451847  Physocarpus capitatus J. P. Smith, Steve Selva 1970-8-7 4544 Siskiyou [Unspecified] Comment
  UCSB24685  Physocarpus capitatus Favero, R. 1968-5-16 Siskiyou 13 miles from Somes Bar bridge toward Happy Camp, Salmon Mountains 487 Comment
  CAS-BOT-BC73474  Picea breweriana John Thomas Howell 1939-8-2 14900 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC1282035  Picea breweriana Alan Bell 1963-8-17 Siskiyou on glaciated granodiorite on slope sw of Log Lake (10 degrees e from summit of Bear Ridge on its ne side); Klamath National Forest, Scott Mountain 1965 Comment
  UCD134305  Picea breweriana G. L. Stebbins 1963-7-5 s.n. Siskiyou Blake's Fork of South Russian Creek (a tributary of Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1615 Comment
  CAS-BOT-BC73386  Pinus albicaulis W. R. Dudley 1905-8-4 s.n. Siskiyou Slope, Mt. Eddy. Comment
  HSC31987  Pinus albicaulis Steve Selva, Roger Jensen 1974-8-25 54 Siskiyou Top of slopes W of Little Duck Lake Comment
  UC572792  Pinus albicaulis unknown 1937-7-28 9163 Siskiyou Mt. Shasta 2590 Comment
  CAS-BOT-BC78407  Pinus balfouriana W. R. Dudley 1899-8-26 s.n. Siskiyou Eddy Mt. Comment
  HSC67797  Pinus contorta var. murrayana J. O. Sawyer, J. Cole 1980-7-22 3998 Siskiyou Little Horse Peak 1720 Comment
  HSC92116  Pinus contorta var. murrayana Jennifer Whipple 1978-10-6 2416 Siskiyou Dale Creek drainage on N face of Mt. Eddy. 2195 Comment
  CAS-BOT-BC73096  Pinus lambertiana Doris K. Kildale 1927-11-28 4233 Siskiyou Quartz Valley, Scott River Comment
  CAS-BOT-BC72866  Pinus ponderosa Doris K. Kildale 1929-3-11 7713 Siskiyou Cecilville, south fork of Salmon River Comment
  JEPS25766  Piperia elongata Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7471 Siskiyou about 5 mi s Clear Creek (or 4 mi n of Swillup Creek, along road-bank on State Hwy 96, along Klamath River); Klamath River 292 Comment
  UC166574  Piperia unalascensis Geo. D. Butler 1671 Siskiyou Comment
  CAS-BOT-BC231007  Plagiobothrys hispidulus A. A. Heller 1919-6-25 13264 Siskiyou Compton's prairie, N base of Mount Eddy 1158 Comment
  HSC92949  Plagiobothrys hispidulus Thomas W. Nelson, Jane P. Nelson 1985-6-19 7826 Siskiyou In and about Scott Mtn. Campground 1646 Comment
  JEPS104989  Plagiobothrys hispidulus Dean W. Taylor 1996-7-27 15861 Siskiyou Grass Lake (about 15 air miles NE of Weed); Klamath National Forest; Modoc Plateau region 1524 Comment
  UCD77290  Plagiobothrys hispidulus Robert E. Preston 2002-6-20 1847 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope 1968 Comment
  SD61055  Plagiobothrys hispidus D. F. Howe 1964-8-5 3941 Siskiyou 3.7 mi. so. Of no. entrance to Klamouth Nat. Forest on #97. 1584 Comment
  POM71621  Plagiobothrys scouleri var. hispidulus Marcus E. Jones 1882-7-8 s.n. Siskiyou Duncan s Mill. 100 mi N of S.F Comment
  UC1072710  Plantago lanceolata Douglas Barbe 1955-7-1 74 Siskiyou 1.3 mi e Etna (on the Westside Road to Callahan, to the s of the road); Klamath Mountains 853 Comment
  POM208201  Platanthera leucostachys Louis C. Wheeler 1934-6-18 2725 Siskiyou Cottonwood Creek, Siskiyou Mts. Mt. Diablo Mer. 1311 Comment
  HSC4863  Platanthera sparsiflora J. O. Sawyer 1968-7-10 506 Siskiyou On Sugar Creek just above confluence with S Sugar Creek 1707 Comment
  HSC68463  Platanthera sparsiflora Maralyn A. Renner 1980-7-4 1458 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  HSC32018  Platanthera sparsiflora A. Montalvo, J. D. Ackerman 1974-7-2 353 Siskiyou Along road to Middle Fork Sacramento River and Toad Lake. West of Mt. Shasta City Comment
  HSC97402  Platanthera sparsiflora A. Montalvo, J. D. Ackerman 1974-7-2 341 Siskiyou Sacramento River drainage between Mt. Shasta City and Mt. Eddy. Off road to Deadfall Lakes and Morgan Meadows 1524 Comment
  HSC65855  Pleuricospora fimbriolata Gail Newton 1980-6-20 544 Siskiyou Near Bald Mtn. 1326 Comment
  RSA240083  Pleuricospora fimbriolata Frederick W. Oettinger 1969-8-23 1514 Siskiyou On hill above Smith Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC1025120  Poa Douglas Barbe 1955-8-5 362 Siskiyou at summit of trail from Big Flat to Caribou Lake (a point nw of Caribou Mt); Salmon Mts 2407 Comment
  CAS-BOT-BC254785  Poa bolanderi 1955-7-17 218 Siskiyou Cold Spring Camp, around the spring 1889 Comment
  CAS-BOT-BC254992  Poa bulbosa Dorothy Parker 1948-6-12 s.n. Siskiyou Parker Ranch, Plowman's Valley Comment
  CDA2381  Poa bulbosa T. C. Fuller 1958-6-19 1829 Siskiyou Railroad yard, Montague. 0 Comment
  UCR64614  Poa bulbosa L. C. Wheeler 1935-6-1 3536 Siskiyou Siskiyou Mtns., Yreka Creek [at Lime Gulch confluence] 854 Comment
  HSC36750  Poa compressa J. P. Smith 1974-5-25 7404 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  CAS-BOT-BC247010  Poa nervosa Douglas Barbe 1955-8-1 331 Siskiyou Summit, Mt. Bolivar, Scott Mts. 2468 Comment
  HSC30579  Poa pratensis Frederick W. Oettinger 1969-8-14 1374 Siskiyou Marble Mtn. Wilderness Area, English Lake. 1936 Comment
  UCD91829  Poa pratensis A. A. Beetle; G. L. Stebbins Jr. 1942-5-30 3386 Siskiyou at Weed. Comment
  CAS-BOT-BC256015  Poa pratensis William M. Hiesey 1947-8-23 556 Siskiyou Klamath River along Highway 96, one mile west of Beaver Creek, 2 mi. N. of Walker 548 Comment
  CAS-BOT-BC247531  Poa pringlei John Thomas Howell 1937-7-29 13670 Siskiyou North side of Scott Mt. Comment
  UCD91764  Poa pringlei A. A. Heller 1921-7-7 13566 Siskiyou East slope of Mt. Eddy, in the Canadian Life Zone. Comment
  UCD91765  Poa pringlei Freed W. Hoffman 1950-7-13 3655 Siskiyou western side of Baldy Mountain. Comment
  SEINET10659282  Poa pringlei William B. Cooke 1941-9-10 Cooke 16293 Siskiyou Occasional among boulders on ridges above Horse Camp, Mt. Shasta. Comment
  UC167208  Poa rhizomata Geo. D. Butler 1910-4-21 1205 Siskiyou Oro Fino; ; Siskiyou Co. Comment
  CAS-BOT-BC243224  Poa secunda subsp. secunda C. G. Pringle 1881-8-17 s.n. Siskiyou Mount Shasta 2438 Comment
  JEPS84093  Poa secunda subsp. secunda L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6438 Siskiyou ca 5 mi n Seiad Valley town (e slope of Kangaroo Mt, cirque head of Hell's Canyon) 1828 Comment
  CAS-BOT-BC244179  Poa trivialis Roxana S. Ferris; Laura Lorraine 1948-6-12 11747 Siskiyou French Creek Logging Road W of Callahan 1219 Comment
  JEPS40859  Poa wheeleri Paul C. Hutchison 1961-8-2 937 -A Siskiyou between top of ski lift and Panther Meadow; Mt Shasta 2621 Comment
  JEPS100989  Pogogyne zizyphoroides Dean Wm. Taylor with Glenn Clifton 1990-6-12 10870 Siskiyou Adobe Flat Reservoir, ca. 5 miles N of Timbered Crater, 1075 Comment
  UC52663  Polemonium carneum W. P. Gibbons Aug 1896 a 2 Siskiyou <?>town Comment
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  UC56864  Polemonium micranthum F. W. Hooper Apr. 1897 Siskiyou Little Shasta 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
  CAS-BOT-BC231357  Polemonium pulcherrimum Wm. Bridge Cooke 1938-9-8 11646 Siskiyou Mount Shasta. North side of Red Butte Comment
  HSC45816  Polemonium pulcherrimum J. P. Smith, J. O. Sawyer 1972-6-30 5642 Siskiyou Ridge W of Little Duck Lake. 2378 Comment
  CAS-BOT-BC6423  Polemonium tricolor Harley Pierce Chandler 1901-6-1 1671 Siskiyou North Coast Ranges, Marble Mountain 2438 Comment
  CAS-BOT-BC74167  Polyctenium fremontii Elmer I. Applegate 1935-6-2 9286 Siskiyou Frenner's ranch on old road to Lava Beds, near north boundary of the National Monument. Comment
  HSC67531  Polygala californica J. P. Smith, Steve Selva 1970-6-15 3907 Siskiyou 10 mi. NW of Forks of Salmon Comment
  SEINET11263756  Polygala cornuta George Neville Jones 1967-6-29 45675 Siskiyou Near Dunsmuir, lower slopes of Mt. Shasta.; 0 914 Comment
  RSA237802  Polygonum aviculare Frederick W. Oettinger 1969-8-24 1531 Siskiyou Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  CAS-BOT-BC414278  Polygonum aviculare subsp. depressum A. A. Heller 1915-8-24 12207 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UC164035  Polygonum bistortoides Geo. D. Butler 1910-6-5 1477 Siskiyou Shackelford Creek Comment
  JEPS50517  Polygonum convolvulus Geo. D. Butler 1908-8-29 197 Siskiyou near Oro Fino; Marlahan Ranch Comment
  CDA22794  Polygonum douglasii Don Shaw 1978-8-23 Siskiyou Cherry Farms, Macdoel. 0 Comment
  UC850088  Polygonum douglasii subsp. douglasii John Thomas Howell 1939-8-2 14939 Siskiyou Spirit Lake Marble Mts. Comment
  UC171041  Polygonum douglasii subsp. spergulariiforme Dr. E. B. Copeland 1903-7-6 3499 Siskiyou Hornbrook Comment
  UC609355  Polygonum douglasii subsp. spergulariiforme Eleanor Burks Hart 1938-8-13 883 Siskiyou above Scott River 701 Comment
  JEPS117465  Polygonum hydropiperoides Lowell Ahart, John Dittes 2010-7-30 16933 Siskiyou Along the south edge of the Shasta River, about 100 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
  UC1045311  Polygonum lapathifolium W. Bridge Cooke 1940-7-12 15323 Siskiyou along Castle Lake rd near Mount Shasta City (near irrigation ditch) 1066 Comment
  RSA183429  Polygonum minimum J. M. Tucker 1963-8-17 3743 Siskiyou Beside trail from Red Rock Valley to top of ridge to S, and near top of ridge. Marble Mt Wilderness 1860 Comment
  SEINET3160427  Polygonum nuttallii G. D. Butler 1910-7-31 1803 Siskiyou Yreka Comment
  JEPS19769  Polygonum persicaria Rimo Bacigalupi with S. Galen Smith 1957-6-27 5969 Siskiyou about 1 1/2 mi w Weed (along U.S. Hwy 99) 992 Comment
  RSA237779  Polygonum persicaria Frederick W. Oettinger 1969-8-14 1565 Siskiyou Campsite, English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  SBBG18316  Polygonum sawatchense C. B. Hardham 1961-7-2 8063 Siskiyou Mill Crk 1219 Comment
  CAS-BOT-BC109288  Polygonum shastense G. A. Coleman 1901-8-17 s.n. Siskiyou Mount Shasta. 2529 Comment
  JEPS50593  Polygonum shastense John G. Lemmon 1888-9-19 Siskiyou Shasta; side Comment
  SEINET10848475  Polygonum shastense Andrew Townesmith, Karen M. Meyer 2007-7-30 Townesmith 867 Siskiyou Shasta-Trinity National Forest. At the upper end of county road A10, mile 13.8 (from beginning of road in Mount Shasta City, 12.7 miles from National Forest boundary sign). Highest vehicle accessible point on Mount Shasta. T41N R3W S33 NW 1/4. 2399 Comment
  CAS-BOT-BC421066  Polygonum spergulariiforme A. A. Heller 1914-8-28 11725 Siskiyou East side of Mt. Eddy 1889 Comment
  HSC2389  Polygonum spergulariiforme William J. Ferlatte 1966-8-18 431 Siskiyou Willow Creek Trail. 1707 Comment
  RSA211296  Polygonum spergulariiforme William J. Ferlatte 1966-8-3 249 Siskiyou Trinity Alps: Big Flat, wooded area near public camp. 1524 Comment
  UC166281  Polypogon interruptus Geo. D. Butler 1908-6-25 481 Siskiyou along creek near Yreka; near Yreka Comment
  HSC10837  Polypogon monspeliensis C. B. Wolf 1927-8-26 Siskiyou Klamath River, 14 mi. above Happy Camp Comment
  HSC26551  Polypogon monspeliensis J. P. Smith, Steve Selva 1970-7-17 4437 Siskiyou 915 Comment
  CHSC4287  Polystichum imbricans D. Parker 1965-6-10 885 Siskiyou South Fork of Scott River. 1524 Comment
  HSC1144  Polystichum imbricans R. W. Spjut 1968-11-5 165 Siskiyou 1 mi. from S Suggar Lake in the Salmon Mtns. 1829 Comment
  UCD69129  Polystichum imbricans D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-14 s.n. Siskiyou Cecilville-Yoakumville. Cecilville Road. Klamath National Forest. Perennial plant communities on rocky slopes. 670 Comment
  CAS-BOT-BC76729  Polystichum imbricans subsp. imbricans J. H. Thomas 1949-6-16 953 Siskiyou Klamath National Forest - 1/4 mile north of Beaver Creek Public Camp along Beaver Creek; 5 miles north of junction Comment
  JEPS24014  Polystichum imbricans subsp. imbricans Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6875 Siskiyou 2 mi w Seiad Valley (in canyon of Portuguese Creek, drainage of Klamath River) 396 Comment
  UC42137  Polystichum kruckebergii unknown 1878-6-16 Siskiyou near Mt. Shasta Comment
  CAS-BOT-BC72383  Polystichum lemmonii Alice Eastwood 1912-8-30 2043 Siskiyou Mount Eddy Comment
  CHSC71560  Polystichum lemmonii Vernon H. Oswald; Lowell Ahart 1998-8-3 9449 Siskiyou Rock Fence Lake Rd. (USFS 41N18) 1.2 mi northeast of its intersction with Kangaroo Lake Rd. (USFS 41N08) 4.9 mi southeast of Gazelle-Callagan Rd. 1767 Comment
  UC1076339  Polystichum lemmonii Dorothy Tebbe 1929-6-28 26 Siskiyou Mt. Eddy Comment
  UC2026484  Polystichum lemmonii Louis C. Wheeler 1958-8-20 7411 Siskiyou Siskiyou Mountains. Red Butte, southeast side. Comment
  UC338377  Polystichum lemmonii J. G. Lemmon and wife Sep 1889 Siskiyou s slope Mt. Eddy (near Mt. Shasta) Comment
  SJSU6076  Polystichum lemmonii R. W. Trivelpiece 1971-8-10 65 Siskiyou Rock Fence Lake c. 1 mi E of Kangaroo Lake on Kangaroo Creek S of East Fork Scott River between Gazelle and Callahan 1920 Comment
  UC1034653  Polystichum lemmonii Douglas Barbe 1955-7-26 287 Siskiyou below summit Scott Mt.; Klamath Mts. 1981 Comment
  CAS-BOT-BC102767  Populus tremuloides John Thomas Howell 1939-8-9 15209 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  CAS-BOT-BC102771  Populus tremuloides W. R. Dudley 1899-8-11 s.n. Siskiyou near Butte Summit Comment
  HSC46779  Populus trichocarpa William J. Ferlatte 1974-7-14 1527 Siskiyou Big Flat, S Fork of Salmon River below campground 1509 Comment
  SEINET10906094  Porterella carnosula Noel H. Holmgren 1980-7-1 Holmgren 9449 a Siskiyou U.S. Highway 97, 21.4 km (13.3 miles) south-southwest of Macdoel 1524 Comment
  RSA768773  Potamogeton pusillus subsp. tenuissimus Lowell Ahart, John Dittes 2010-7-30 16963 Siskiyou Edge of the Shasta River, about 50-100 yards from the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 air miles southwest of Big Springs Lake, 4.6 air miles northwest of Dwinnel Dam, 5.7 air miles southeast of Grenada. 717 Comment
  HSC90589  Potentilla breweri Jennifer Whipple 1976-7-1 1241 Siskiyou Near Durney Lake 2073 Comment
  UC164067  Potentilla breweri Geo. D. Butler 1910-6-5 1520 Siskiyou Log Lake Comment
  HSC90588  Potentilla cristae Jennifer Whipple 1976-7-1 1222 Siskiyou Wagon Creek drainage near Wagon Creek 2409 Comment
  CAS-BOT-BC142034  Potentilla drummondii Harley P. Chandler 1901-6-1 1564 Siskiyou Ridges and meadows naer Marble Mountain 1828 Comment
  HSC18931  Potentilla flabellifolia J. O. Sawyer 1969-8-4 1820 Siskiyou Above Sugar Lake 2134 Comment
  HSC96434  Potentilla flabellifolia Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 481 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SJSU6532  Potentilla flabellifolia R. W. Trivelpiece 1973-6-21 148 Siskiyou Big Duck L, Scott R drainage c. 7.5 mi W of Callahan 2042 Comment
  RSA12583  Potentilla glandulosa subsp. ashlandica Carl B. Wolf 1934-7-6 6003 Siskiyou 4.7 miles from Mt. Shasta City on Wagon Camp Road, SW slope of Mt. Shasta 1220 Comment
  SBBG3032  Potentilla gracilis H. and M. Dearing 1939-6-30 3758 Siskiyou Callahan-Trinity Alps Rd 1828 Comment
  JEPS96961  Potentilla gracilis var. elmeri Dean W. Taylor 1997-6-12 16059 Siskiyou hillslopes at base of Scott Mountains at mouth of Willow Creek, Shasta Valley); ca. 4 miles west of Gazelle 944 Comment
  JEPS80606  Potentilla gracilis var. fastigiata Gilbert Muth 1966-7-31 470 Siskiyou north side of Black Mountain Marble Mt. Wilderness Area, n side of Black Mountain 1981 Comment
  CAS-BOT-BC540557  Potentilla gracilis var. fastigiata A. A. Heller 1919-6-20 13258 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC540574  Potentilla gracilis var. fastigiata Alice Eastwood; John Thomas Howell 1936-6-13 2754 Siskiyou 6 miles north of Weed Comment
  HSC4473  Primula suffrutescens William J. Ferlatte 1966-8-5 354 Siskiyou Caribou Mtn. 2470 Comment
  HSC19566  Prosartes hookeri J. O. Sawyer 1968-7-10 514 Siskiyou S side of Sugar Creek. 1616 Comment
  CAS-BOT-BC517366  Prosartes smithii Louis C. Wheeler 1934-8-10 3104 Siskiyou Klamath National Forest, Jaynes Canyon 1127 Comment
  HSC99330  Prunella vulgaris C. B. Wolf 1927-8-26 1092 Siskiyou Klamath River, 14 mi. above Happy Camp Comment
  UC1408768  Prunella vulgaris var. lanceolata Frederick W. Oettinger 1969-8-18 1422 Siskiyou just w Horse Range Lake outlet (the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area, western Siskiyou County); Marble Mountain Wilderness Area, Salmon Mountains 1821 Comment
  CAS-BOT-BC158241  Prunus emarginata Wm. Bridge Cooke 1938-6-17 11011 Siskiyou Sisson Southern Trail Comment
  CDA26147  Prunus emarginata M. S. Bergseng 1959-5-12 2362 Siskiyou North of Dunsmuir, Mt. Shasta region. 0 Comment
  CDA26150  Prunus emarginata T. C. Fuller 1960-5-26 4345 Siskiyou 2 miles south of Mt. Shasta City. 0 Comment
  HSC43377  Prunus emarginata Maralyn O'Meara 1974-5-26 453 Siskiyou Chandler Glade along USFS Rd. 47N03 1768 Comment
  LA86525  Prunus emarginata John M. Tucker; 1963-7-7 3711 Siskiyou Marble Mountain Wilderness Area, in vicinity of Paradise Lake, at base of Kings Castle on E side 1981 Comment
  RSA747164  Prunus emarginata Bonnie C. Templeton 1964-6-9 10066 Siskiyou Slope of Mt. Shasta Comment
  UC1312930  Prunus emarginata John M. Tucker 1963-7-7 3711 Siskiyou vicinity of Paradise Lake (base on e side of Kings Castle); Marble Mountain Wilderness Area, Kings Castle 1981 Comment
  UC796547  Prunus emarginata Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11776 Siskiyou about 5.5 mi from Etna (on forks of Salmon Road) Comment
  POM266008  Prunus subcordata Lincoln Constance, Reed C. Collins 1942-5-14 2922 Siskiyou Road to Walker Post Office, 3 miles W of Yreka. 1220 Comment
  CAS-BOT-BC151226  Prunus virginiana var. demissa G. J. Muth 1969-8-12 1376 Siskiyou Second Valley 2225 Comment
  HSC60170  Prunus virginiana var. demissa J. P. Smith 1976-5-22 8792 Siskiyou Near County Dump in Scott Valley between Callahan and Etna 1037 Comment
  LA208173  Prunus virginiana var. demissa Wm. Bridge Cooke; 1938-8-5 11443 Siskiyou Mount Shasta 1523 Comment
  CAS-BOT-BC357394  Pseudognaphalium microcephalum Wm. Bridge Cooke 1938-8-5 11452 Siskiyou Mount Shasta. Near MacBride Spring Comment
  UC61666  Pseudognaphalium thermale Geo. B. Grant 1902-9-1 5075 Siskiyou Sisson Mount Shasta, Sisson 914 Comment
  CAS-BOT-BC239818  Pseudoroegneria spicata Elmer I. Applegate 1935-6-10 9461 Siskiyou Indian Well, Lava Beds National Monument Comment
  SEINET10960001  Pseudoroegneria spicata Edwin B. Copel 1903-7-4 Copeland 3542 Siskiyou The Pacific Coast. Klamathon. Small tufts on very arid hills. Comment
  CHSC227  Pseudostellaria jamesiana K. Jaekel 1939-7-29 Siskiyou Meadow on Mt. Eddy. Comment
  HSC506  Pseudostellaria jamesiana William J. Ferlatte 1967-6-27 535 Siskiyou Big Flat 1524 Comment
  RSA52432  Pseudostellaria jamesiana Dorothy Parker 1948-6-14 s.n. Siskiyou Rail Creek, Plowman s Valley 1204 Comment
  CAS-BOT-BC80174  Pseudotsuga menziesii Doris K. Kildale 1929-4-27 7559 Siskiyou Cecilville Comment
  HSC46225  Psilocarphus tenellus Jennifer Whipple 1978-6-5 2336 Siskiyou Weston Gulch in Scott Valley 854 Comment
  HSC2601  Pterospora andromedea William J. Ferlatte 1966-8-19 445 Siskiyou Kidd Creek Trail. 1707 Comment
  UC166596  Pterospora andromedea Geo. D. Butler 1910-8-7 1817 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC460548  Pterospora andromedea L. E. Smith 1913-7-19 472 Siskiyou Downey Butte Comment
  UCD91860  Puccinellia distans Robert Slayback; O. K. Hoglund 1965-7-1 s.n. Siskiyou 1 mile east of the Lower Klamath National Wildlife Refuge. 70 Comment
  UCD91861  Puccinellia distans R. Tofsrud 1949-8-4 s.n. Siskiyou between Grenada and Gazelle, Hwy. 99. Comment
  CAS-BOT-BC228581  Purshia tridentata Peter W. Fritsch; James R. Shevock; Lu Lu 2012-6-21 1936 Siskiyou Shasta Valley, about 11 km NE of Weed along U.S. Highway 97, just past road to Lake Shastina 1082 Comment
  UCD22430  Purshia tridentata Brian Vanden Heuvel 2003-4-10 191 Siskiyou Shasta National Forest. 1.6 miles east of McCloud on CA 89, on south side of road. Comment
  UCD22431  Purshia tridentata Brian Vanden Heuvel 2003-4-10 193 Siskiyou Shasta National Forest. 1.6 miles east of McCloud on CA 89, on south side of road. Comment
  CAS-BOT-BC147901  Purshia tridentata var. tridentata L. R. Abrams; J. T. Benson 1924-5-9 10173 Siskiyou Near Black Butte Comment
  RSA30411  Purshia tridentata var. tridentata A. A. Heller 1916-6-23 12439 Siskiyou Near Black Butte, N of Sisson. 1128 Comment
  UC1128548  Purshia tridentata var. tridentata H. A. Jensen 1933-8-7 341 Siskiyou adjoining Black Butte; Shasta National Forest, Dunsmuir Quad. 1188 Comment
  HSC145  Pyrola aphylla William J. Ferlatte 1966-8-3 268 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's. 1524 Comment
  JEPS58856  Pyrola asarifolia Willis L. Jepson 1894-8-4 14665 Siskiyou Mt. Shasta Comment
  RSA0080485  Pyrola dentata C. L. Hitchcock, J. S. Martin, A. S. Hitchcock 1939-7-8 5301 Siskiyou 15 miles north of Happy Camp on Happy Camp-Tailma Hiway. 915 Comment
  SEINET191597  Pyrola picta Unknown 1940-7-8 2225 Siskiyou Coniferous woods near summit of Siskiyou Mountains, 17 miles north of Happy Camp. Comment
  UC1347200  Pyrola picta John Thomas Howell 1937-7-26 13520 Siskiyou Salmon Trinity Alps, Caribou Basin Caribou Basin; Salmon Trinity Alps, Caribou Basin 1981 Comment
  CAS-BOT-BC466308  Pyrola picta C. L. Hitchcock; J. S. Martin 1939-7-8 5301 Siskiyou 15 miles No of Happy Camp on Happy Camp--Takilma Hwy 914 Comment
  UC86685  Pyrrocoma carthamoides var. cusickii J. W. Congdon 1900-8-18 Siskiyou [illeg.] Mt. Eddy Comment
  CAS-BOT-BC362270  Pyrrocoma carthamoides var. cusickii Louis C. Wheeler No date on label 2830 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. Comment
  CHSC34104  Pyrrocoma racemosa var. pinetorum J. D. Jokerst; M. D. Huffine 1981-9-8 1462 Siskiyou E of road in the section. 1249 Comment
  CAS-BOT-BC68645  Quercus chrysolepis John Thomas Howell 1937-7-26 13543 Siskiyou Caribou Gulch Comment
  HSC27470  Quercus chrysolepis J. P. Smith, J. O. Sawyer 1972-5-28 5386 Siskiyou Salmon River at bridge west of O'Farrill Gulch 549 Comment
  UC848033  Quercus garryana Louis C. Wheeler 1934-10-7 3312 Siskiyou Oak Knoll Ranger Station Siskiyou Mountains, Klamath River 670 Comment
  CAS-BOT-BC94653  Quercus garryana W. R. Dudley 1901-8-26 s.n. Siskiyou W of Willow Creek Slope, Salmon Mountains Comment
  SEINET10477171  Quercus garryana K. Faber, S. LaChance; M. Rekart 1984-5-26 Faber 53 Siskiyou Indian scotty campground, t44n,r11w,sec.26. Disturbed area, 15-20% slopr, Northern oak woodland with quercus 701 Comment
  JEPS37847  Quercus garryana var. breweri W. L. Jepson 1907-7-5 2845 Siskiyou Marble Mt. 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
  CAS-BOT-BC104369  Quercus sadleriana Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  RSA281650  Quercus sadleriana S. O. Mattoon 1979-8-3 70 Siskiyou Bolan Lake, 12 air miles ESE of Hwy 199 and Obrien ore and 3 air miles N of Del Norte county, Siskiyou Mountains. 1829 Comment
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Jun 25 2013
  RSA300512  Quercus sadleriana John Dourley, Walter Wisura 1982-10-17 3883 Siskiyou Mill Creek Ridge, ca. 18 mi N of Happy Camp, along old road up Indian Creek. 1524 Comment
  SBBG83415  Quercus sadleriana R. Gankin, H. Brewer, D. Hildreth, K. Milam 1965-8-11 607 Siskiyou Indian Crk Rd, 5.6 mi S of Californica- Oregon state line Comment
  SEINET3136091  Quercus sadleriana S. L. Holloway 1963-10-12 77 Siskiyou Marble Mtn Wilderness Area, jxn Rock Valley trail and Canyon Creek trail; T43 R11W, se corner S7 1341 Comment
  UC552335  Quercus sadleriana Rimo Bacigalupi 1935-10-21 2369 Siskiyou summit of road from Waldo, Oregon to Happy Camp (Del Norte-Siskiyou County line); Siskiyou Mountains Comment
  UCD47239  Quercus sadleriana Gilbert Jerome Muth; J. M. Tucker 1972-8-9 1797 Siskiyou Near Cook and Green Pass, Siskiyou County, California. Seiad Valley Quad. 345 mm from bottom margin, 137 mm from left margin. SLID No. 6936, Herb Acc No. 00011252. 1462 Comment
  LA205358  Quercus sadleriana Edward Lee; 1934-8-13 1067 Siskiyou Kalmath National Forest, Happy Camp to Waldo (Oregon) rd, watershed of W Branch of Indian Creek 1371 Comment
  RSA237792  Quercus vacciniifolia Frederick W. Oettinger 1969-8-18 1436 Siskiyou Southeast of and over the ridge from Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC338543  Quercus vacciniifolia unknown 1888-8-24 Siskiyou near Castle Lake (near Sisson's) Comment
  UCD14013  Quercus vacciniifolia John M. Tucker 1948-8-3 1776 Siskiyou California, Siskiyou Co.; 6.7 mi. (by road) below the summit of Happy Camp - Waldo road; Comment
  SEINET10970880  Quercus vacciniifolia Patricia L. Kenney 1973-6-4 Kenney 385 Siskiyou On steep roadbank along road from cecilville to callahan; 6.4 miles w of Callahan 1737 Comment
  CHSC63323  Raillardella pringlei Vernon H. Oswald; Lowell Ahart 1994-7-11 6400 Siskiyou Gumboot Creek on the upstream side of Forest Rd. 26 (to Mt. Shasta), ca. 0.5 mi NE of Gumboot Lake, W of Dunsmuir. Meadow. 1783 Comment
  UC1731566  Raillardella pringlei Glenn L. Clifton 1992-9-11 27384 Siskiyou Gumboot Creek North Coast Ranges (headwaters of South Fork Sacramento River, (Seven Lakes Basin 7 1/2' quadrangle) 1905 Comment
  JEPS55081  Ranunculus alismifolius var. alismifolius Milo S. Baker 1893-8-8 Siskiyou Medicine Lake; near shore Comment
  UC165299  Ranunculus alismifolius var. alismifolius Geo. D. Butler 1910-5-10 1322 Siskiyou Bulls Meadow Goosenest Mtn. 1676 Comment
  SEINET7042790  Ranunculus californicus A. G. Vestal 1955-5-17 s.n. Siskiyou Meadow at Oxbow west of Scott River. 9.5 miles south of Fort Jones. Etna quadrangle UTM Zone 10 508671mE, 4590390mN. Comment
  RSA47794  Ranunculus orthorhynchus Roxana S. Ferris, Laura Lorraine 1948-6-12 11820 Siskiyou E Fork of Scott River drainage, Parker Ranch, Plowman's Valley. 1204 Comment
  JEPS42066  Rhamnus californica Ruby Van Deventer 1938-6-26 169 Siskiyou near Windy Camp (Old Gasquet Road) 365 Comment
  SEINET4855298  Rhamnus obtusissima E. B. Copeland 1903-8-15 3833 Siskiyou Sisson. 1098 Comment
  RSA12077  Rhamnus purshiana Louis C. Wheeler 1934-10-28 3351 Siskiyou Shasta Riuver 2miles below Yreka Creek, Siskiyou Mts. Mt. Diablo Mer 823 Comment
  JEPS41972  Rhamnus rubra Willis L. Jepson Jul 1894 13982 Siskiyou plateau about Muir's Peak Upper Sacramento Region, Black Butte Comment
  HSC91309  Rhododendron columbianum Jennifer Whipple 1977-8-4 2160 Siskiyou Wagon Creek drainage near Wagon Creek 2226 Comment
  CAS-BOT-BC199742  Rhododendron occidentale var. paludosum Alice Eastwood 1923-5-29 11993 Siskiyou Shasta Springs Comment
  CAS-BOT-BC200401  Rhododendron occidentale var. paludosum Alice Eastwood 1912-7-23 1351 Siskiyou Cantara Comment
  HSC27471  Rhus aromatica J. P. Smith, J. O. Sawyer 1972-5-28 5368 Siskiyou 2.7 mi. N of Rd. 8 and Sugar Creek on Hwy. 3 915 Comment
  SEINET10494636  Rhus trilobata Katherine L. Morris 1973-6-2 Morris 356 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy 263. Comment
  CAS-BOT-BC438015  Ribes Laura M. Lathrop 1903-7-16 s.n. Siskiyou Shasta Retreat Comment
  UC1096828  Ribes cereum Milo S. Baker 1957-6-16 13101 Siskiyou near Callahan (trip to Scott Mt. after turn off); Scott Mt. Comment
  UCD102136  Ribes cereum Wm. E. Moon 1958-5-29 s.n. Siskiyou along State Hwy 97, southwest of Hebron Summit. 1524 Comment
  RSA0024870  Ribes cereum Wagnon 1957-8-11 1704 Siskiyou East slope of Mt. Shasta, 1 mile W of Military Pass Rd., along rd. to Brewer s Cr. Comment
  HSC99923  Ribes inerme var. inerme J. O. Sawyer, & R. J. Cole 2010-6-26 4610 Siskiyou Hilt-Hungry Road, Klamath National Forest. 845 Comment
  CAS-BOT-BC173285  Ribes lacustre John Thomas Howell 1937-7-22 13305 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UCD78097  Ribes lacustre Robert E. Preston 2001-6-23 1628 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W se 1/4 of ne 1/4 Section 15 1676 Comment
  RSA0021109  Ribes lacustre M. B. Dunkle 1944-7-26 9039 Siskiyou Siskiyou National Forest. 1829 Comment
  HSC32159  Ribes lobbii J. O. Sawyer 1970-6-17 2202 Siskiyou 1768 Comment
  HSC45029  Ribes lobbii Maralyn O'Meara 1974-5-25 400 Siskiyou Along road to Duck Lakes trail 1402 Comment
  HSC68334  Ribes lobbii Maralyn A. Renner 1980-6-26 1236 Siskiyou SE edge of Flint Valley. 1390 Comment
  POM141962  Ribes lobbii Geo. D. Butler 1910-5-30 1442 Siskiyou Humbug Creek. Comment
  SEINET3151806  Ribes lobbii G. D. Butler 1910-5-30 1442 Siskiyou Humbug Creek Comment
  HSC34303  Ribes marshallii J. P. Smith, J. O. Sawyer 1973-8-14 7299 Siskiyou On trail from Campbell Lake to Cliff Lake 1829 Comment
  RSA167322  Ribes marshallii Joseph P. Tracy 1951-6-16 19501 Siskiyou Summit of Siskiyou Mountains, crossing of the Takilma-Happy Camp Road Comment
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Jul 12 2012
  SEINET13942690 Image available Ribes nevadaense A. A. Heller 1920-1 13513 Siskiyou Along Mt. Shasta trail at about 5500 ft elev 1676 Comment
  RSA0022720  Ribes nevadense var. glaucescens J. T. Howell 1937-7-26 13528 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  HSC67806  Ribes roezlii J. O. Sawyer, J. Cole 1980-7-22 3971 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  JEPS82694  Ribes roezlii Wayne Roderick 1984-6-7 Siskiyou sw Stewart Springs; Cabin Meadow 1920 Comment
  CAS-BOT-BC199980  Ribes roezlii var. cruentum John H. Thomas 1954-5-14 4185 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville 1219 Comment
  CAS-BOT-BC200003  Ribes roezlii var. cruentum Doris K. Kildale 1928-8-12 6420 Siskiyou North Fork of Salmon River near Finley Camp Comment
  LA90209  Ribes roezlii var. cruentum J. William Thompson; 1936-7-8 13168 Siskiyou Lava Beds National Monument Comment
  CAS-BOT-BC173909  Ribes velutinum Alice Eastwood; John Thomas Howell 1934-4-20 1758 Siskiyou Near Yreka along Shasta River Comment
  CAS-BOT-BC173910  Ribes velutinum Alice Eastwood 1912-7-20 1265 Siskiyou Hornbrook Comment
  CAS-BOT-BC168800  Ribes viscosissimum Edna Kelsey 1961-8-1 s.n. Siskiyou Skyhigh Lake, Marble Mts. Comment
  HSC61944  Ribes viscosissimum Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  LA205491  Ribes viscosissimum W. B. C.; 1939-6-30 13570 Siskiyou Mount Shasta, near the source of MacBride Springs 1523 Comment
  RSA0020919  Ribes viscosissimum Albert M. Vollmer, L. Beane 1951-6-2 55 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway. Comment
  HSC46224  Rigiopappus leptocladus Jennifer Whipple 1978-6-5 2335 Siskiyou Weston Gulch in Scott Valley 854 Comment
  CDA16168  Robinia pseudoacacia G. F. Hrusa, T. D. Wilfred 1999-5-31 15067 Siskiyou Klamath Ranges; E side of I-5 at Klamath R. rest area +- 10 mi N of Yreka 640 Comment
  CAS-BOT-BC65007  Rorippa curvipes R. F. Thorne; Frederick W. Oettinger 1969-8-4 63353 Siskiyou High lake basins in the vicinity of English Pk, above Tobacco Lake. Klamath National Forest, Marble Mountain Wilderness Comment
  HSC43151  Rorippa curvisiliqua Ken Stillman 1976-8-24 427 Siskiyou Along the Klamath River at Williams Point 366 Comment
  JEPS53851  Rorippa curvisiliqua Geo. D. Butler 1908-7-16 118 Siskiyou Butler's Ranch near Yreka, Butler's Ranch Comment
  HSC77284  Rorippa curvisiliqua L. P. Janeway 1983-9-11 680 Siskiyou Along the Poker Flat/Twin Valley trail 1524 Comment
  JEPS47236  Rosa Geo. D. Butler 1909-9-26 973 Siskiyou along creek near Yreka Comment
  HSC26766  Rosa californica J. P. Smith, J. O. Sawyer 1971-9-18 4841 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  CAS-BOT-BC146740  Rosa gymnocarpa Alice Eastwood 1912-7-19 1228 Siskiyou Mount Shasta Comment
  CAS-BOT-BC146754  Rosa gymnocarpa H. A. Thomas; J. H. Thomas 1954-7-27 4551 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. South side of South Fork of Salmon River in vicinity of Blind Horse Creek and area 1 mile to SE 975 Comment
  CAS-BOT-BC146766  Rosa gymnocarpa Doris K. Kildale 1928-7-4 5469 Siskiyou 3 miles west of Summit of Divide between Sawyers Bar & Etna Mills 1828 Comment
  RSA237812  Rosa gymnocarpa Frederick W. Oettinger 1969-9-4 1640 Siskiyou NW side of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1951 Comment
  UC1190136  Rosa gymnocarpa Ira L. Wiggins 1955-7-23 13476 Siskiyou banks China Creek 1097 Comment
  UC164424  Rosa gymnocarpa Geo. D. Butler 1910-5-30 1437 Siskiyou Humbug Mountain 1219 Comment
  UC164425  Rosa gymnocarpa Geo. D. Butler 1910-8-7 1816 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC147070  Rosa pisocarpa Dorothy Parker 1948-8-19 s.n. Siskiyou Summit of Scott Mountain 1582 Comment
  HSC90551  Rosa pisocarpa Jennifer Whipple 1977-8-6 2203 Siskiyou W side of Dobkins Lake 2073 Comment
  POM277840  Rosa pringlei C. G. Pringle 1882-9-6 s.n. Siskiyou By streams. Comment
  CAS-BOT-BC148188  Rosa rubiginosa Geo. D. Butler 1910-5-29 1427 Siskiyou Dry land near Yreka Comment
  CAS-BOT-BC148193  Rosa rubiginosa Carl B. Wolf 1930-10-23 1760 Siskiyou Along the Klamath River, 1 mi. above Happy Camp 182 Comment
  HSC32289  Rosa rubiginosa J. O. Sawyer 1970-6-15 2200 Siskiyou Slopes N of Sugar Creek 976 Comment
  CAS-BOT-BC147978  Rubus leucodermis Wm. Bridge Cooke 1938-7-22 11351 Siskiyou Sisson Southern Trail - Mount Shasta 1676 Comment
  HSC69537  Rubus leucodermis Maralyn A. Renner 1980-8-6 2253 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  UC637066  Rubus leucodermis Edward Lee 1934-8-15 1133 Siskiyou near Summit of Happy Camp to Waldo (Oregon) road, Indian Creek watershed, Klamath National Forest 1584 Comment
  RSA245274  Rubus macropetalus Carl W. Mize 1972-6-8 37 Siskiyou Forks of Salmon quad. By Wooley Creek. 335 Comment
  CAS-BOT-BC147313  Rubus parviflorus John Thomas Howell 1939-8-2 14937 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC147325  Rubus parviflorus Alice Eastwood 1923-5-27 11943 Siskiyou Shasta Springs, on road to McCloud Comment
  CAS-BOT-BC157166  Rubus ursinus Alice Eastwood 1921-7-26 10863 Siskiyou Soda Creek Comment
  HSC28677  Rumex acetosella Frederick W. Oettinger 1968-8-10 466 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area; Trail east side of Hancock Lake 1890 Comment
  CAS-BOT-BC433407  Rumex crispus L. R. Short 1933-6-16 50 Siskiyou Klamath National Forest. Klamath River 609 Comment
  UCD77983  Sagina procumbens Robert E. Preston 2001-7-20 1679 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1700 Comment
  UC618783  Sagina saginoides W. Bridge Cooke 1938-8-18 11474 Siskiyou Mt. Shasta, Horse Camp Springs Comment
  CAS-BOT-BC267084  Sagittaria Elmer I. Applegate 1923-8-21 3912 Siskiyou Willow Creek, near Dome Mountain Comment
  CAS-BOT-BC103543  Salix commutata Gilbert Muth 1965-8-5 s.n. Siskiyou Along trail behind Blk. Mt. Comment
  HSC76984  Salix eastwoodiae K. T. Stillman 1976-6-25 75 Siskiyou Marble Mtn. Wilderness Area 1799 Comment
  RSA105506  Salix exigua G. D. Barbe 1955-6-28 7 Siskiyou 0.8 mile N of Callahan near Hjertagers' Mill. 976 Comment
  RSA610754  Salix exigua Louis C. Wheeler 1935-5-11 3471 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  RSA0038339  Salix hindsiana H. P. Bracelin 1931-6-22 477 Siskiyou Pit River at Gibson flag station, 125 km. north of Red Bluff. 450 Comment
  CAS-BOT-BC107654  Salix jepsonii Alice Eastwood 1921-7-24 10716 Siskiyou Castle Lake Comment
  CHSC88393  Salix laevigata Jenny Marr 1993-7-1 152 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  POM229947  Salix laevigata Louis C. Wheeler 1935-5-11 3473 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  UC482235  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 411 Siskiyou ca. 16 km. n.w. Shasta City (stream above Metcalf ranch house, n.e. side Mt. Eddy); Mt. Eddy 1425 Comment
  CAS-BOT-BC125445  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-19 411 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City; above Metcalf ranch house 1425 Comment
  CAS-BOT-BC125456  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-19 424 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City; above Metcalf ranch house 1350 Comment
  CAS-BOT-BC125464  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-21 473 Siskiyou North base of Mount Eddy, about 13 km. northwest of Shasta City; about 1.3 km. east of Burney Mill 1110 Comment
  JEPS80664  Salix lasiandra var. lasiandra W. B. and V. G. Cooke 1977-9-22 54823 Siskiyou near Deter Camp Mt. Shasta Comment
  SD1000  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-21 473 Siskiyou North base of Mount Eddy, about 13 km northwest of Shasta City, flat beside creek, at bridge, about 1.3 km east of Burney Mill 1110 Comment
  SJSU263  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-21 473 Siskiyou bridge c. 1.3 km E of Burney Mill, N base of Mt Eddy, c. 13 km NW of Shasta City 1109 Comment
  UCD111532  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-19 411 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City. Above Metcalf ranch house. 1425 Comment
  CAS-BOT-BC107060  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1455 Comment
  POM107145  Salix lasiolepis Geo. D. Butler 1910-3-21 1135 Siskiyou Yreka Creek. Comment
  UC375223  Salix lasiolepis Geo. D. Butler 1909-4-11 1078 Siskiyou Shasta Springs Comment
  CAS-BOT-BC124894  Salix lemmonii Alice Eastwood 1921-7-28 10965 Siskiyou Medicine Lake Comment
  UCR133525  Salix lemmonii Mrs. H. P. Bracelin 1931-6-21 467 Siskiyou North side of Mount Eddy, about 21 km northwest of Shasta City, below Dobkins Lake 1650 Comment
  SBBG57820  Salix lucida subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 411 Siskiyou NE side of Mt Eddy, ca. 16 km NW of Shasta City, above Metcalf ranch house 1425 Comment
  CAS-BOT-BC125693  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou Flume Creek, tributary of Pit River, near highway at Flume Creek Camp 555 Comment
  CAS-BOT-BC126134  Salix scouleriana L. S. Smith 1931-6-7 21 Siskiyou Mt. Shasta 1066 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
  LA208914  Salix scouleriana Mrs. H. P. Bracelin; 1931-6-20 446 Siskiyou E side of Mount Eddy, ca 17 km NW of Shasta City; above stream in Wagon Creek Canyon; 1 km. up from Metcalf ranch house 539 Comment
  RSA238271  Salix scouleriana Frederick W. Oettinger 1968-8-2 363 Siskiyou Outlet of Diamond Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2073 Comment
  SD880  Salix scouleriana Mrs. H. P. Bracelin 1931-6-19 435 Siskiyou North base of Mount Eddy, about 10 km northwest of Shasta City, east of Metcalf Ranch House 1079 Comment
  UC375239  Salix scouleriana Geo. D. Butler 1908-8-11 148 Siskiyou Shackleford Creek Comment
  UC482267  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 444 Siskiyou ca. 17 km. n.w. Shasta City (e. side Mt. Eddy, above stream in Wagon Creek Canyon, ca. 1 km. up from Metcalf ranch house); Mt. Eddy, Wagon Creek Canyon 1170 Comment
  CAS-BOT-BC129043  Salix scouleriana W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Mountains Comment
  HSC14354  Salvia dorrii var. incana R. C. Wunner 1965-6-13 150 Siskiyou Lava Beds National Monument, Devil's Homestead Lava Flow 1296 Comment
  CDA5766  Salvia virgata T. C. Fuller 1964-6-24 12244 Siskiyou Marlow property, Greenhorn Valley, ca 2 miles west of Yreka. 0 Comment
  UC61047  Sambucus mexicana W. A. Setchell, C. C. Dobie 1902-7-18 Siskiyou Sisson Mount Shasta Comment
  RSA477605  Sambucus microbotrys Chadwick, Mrs Chadwick 1911-07 1931 Siskiyou Shasta Springs. Comment
  HSC97130  Sambucus nigra subsp. caerulea S. Lyon, J. McIntire 2006-6-25 23 Siskiyou On Forest Service Rd. 39N35, 0.3 mi. SE of intersection with Road 39N27 1341 Comment
  CAS-BOT-BC236477  Sambucus racemosa subsp. racemosa Annie M. Alexander; Louise Kellogg 1948-9-9 5611 Siskiyou Near edge of Taylor Lake, Siskiyou Mountains 1828 Comment
  POM141260  Sanguisorba annua E. B. Copeland 1903-8-14 3585 Siskiyou Sisson. Comment
  UC165254  Sanicula graveolens Geo. D. Butler 1910-7-13 1778 Siskiyou Shackleford Creek 1219 Comment
  HSC21639  Sanicula graveolens Lincoln Constance, Ren Hwa Shan 1946-5-31 3059 Siskiyou E bank of Sacramento River at Dunsmuir 701 Comment
  JEPS1005  Sanicula graveolens Geo. D. Butler 1909-4-18 623 Siskiyou Humbug Divide Comment
  JEPS81880  Sanicula tuberosa Roger Raiche 1982-7-4 20532 Siskiyou Mount Eddy 2072 Comment
  UCSB24548  Saponaria officinalis Keefe, Joseph 1967-7-11 Siskiyou Fort Goff Campground; east of Seiad Valley 396 Comment
  RSA210860  Sarcobatus vermiculatus James Henrickson, C. Tilforth 1969-9-3 39040 Siskiyou 2 mi W of Lower Kalmath National Wildlife refuge 1296 Comment
  JEPS59093  Sarcodes sanguinea W. L. Jepson 1907-7-6 2859 Siskiyou Ridge above Cudahay Valley, region of Marble Mt. Comment
  CDA8575  Saussurea americana T. C. Fuller, Don Shaw 1974-9-24 2045 Siskiyou Northwestern; Klamath Ranges region; Headwaters of Horse Creek, southwest slope of White Mountain, Siskiyou Mountains. 0 Comment
  JEPS74528  Saxifraga aprica W. J. Ferlatte 1966-6-22 73 Siskiyou Josephine Lake Basin; Trinity Alps, Josephine Lake Basin 1676 Comment
  HSC718  Saxifragopsis fragarioides William J. Ferlatte 1967-8-20 1054 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  UC722724  Saxifragopsis fragarioides C. L. Hitchcock, J. S. Martin 1939-7-9 5316 a Siskiyou between King's Castle and Black Mountain 1828 Comment
  RSA184726  Saxifragopsis fragarioides Gilbert Muth 1966-7-25 452 Siskiyou Marble Rim below lookout (N). Marble Mtns. 2073 Comment
  CHSC33019  Scleranthus annuus subsp. annuus James P. Smith 1973-5-5 6525 Siskiyou Scott Bar along the Scott River. Comment
  HSC27105  Scutellaria antirrhinoides Carl W. Mize 1972-6-21 57 Siskiyou 0.25 mi. above rd. on WSW slope 274 Comment
  JEPS62917  Scutellaria antirrhinoides W. L. Jepson July, 1894 14929 Siskiyou Sisson Comment
  JEPS95654  Scutellaria antirrhinoides Vernon H. Oswald and L. Ahart 1999-7-5 9823 Siskiyou Hwy. 3 on Scott Mtn. 5.9 mi southeast of Gazelle-Callahan Hwy., 0.6 mi northwest of the highway summit: T40N R7W Sect. 32, 5150 ft, mixed coniferous forest 1569 Comment
  SBBG30534  Scutellaria antirrhinoides D. Myrick 1968-6-24 2002 Siskiyou Mountain Meadow Ranch, Big Flat, Coffee Crk, Trinity Alps 1524 Comment
  UC195216  Scutellaria antirrhinoides Annie M. Alexander and Louise Kellogg 1911-6-13 119 Siskiyou 6 mi nw of Callahan Comment
  UC1299473  Scutellaria siphocampyloides Freed W. Hoffman 1948-7-8 2563 Siskiyou s of Scott Bar (along Scott River); North Coast Ranges, Scott River Comment
  UC571146  Sedum lanceolatum Dorothy Tebbe 1929-6-7 130 Siskiyou rocky hillside at Crater Lake (Mount Eddy); , Crater Lake Comment
  HSC90586  Sedum lanceolatum var. lanceolatum Jennifer Whipple 1977-8-5 2186 Siskiyou Slopes near Little Crater Lake 2195 Comment
  CHSC118095  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25640 Siskiyou West side of FS Road 1040, 2.9 road miles above ju ... Field redacted by CHSC, contact the data manager for more information 675 Comment
  UCR246362  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25640 Siskiyou Klamath Range (KR), W side of Forest Service Road 1040, 2.9 road miles above junction with FS Road 10; above Middle Fork Applegate River, 1 air mile NW of Abney Butte, Siskiyou Mountains 675 Comment
  CHSC118116  Sedum moranense Nick Otting; Dick Brainerd 2014-7-6 3832 Siskiyou Klamath Mountains, Lake Mountain, hairpin of foresst road just below peak, 7 air miles west of Scott Bar. UTM zone 10 489704E 4621479N WGS84. 2034 Comment
  HSC26103  Sedum obtusatum subsp. retusum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  UCR246356  Sedum obtusatum subsp. retusum Peter F. Zika 2011-7-19 25647 Siskiyou Klamath Range (KR), near Pacific Crest Trail, 1 air mile WNW of Copper Butte, Siskiyou Mountains 1610 Comment
  HSC77103  Sedum oregonense K. T. Stillman 1976-7-31 353 Siskiyou Marble Mtn. Wilderness Area: Ridge N of jump off Comment
  UC1585404  Sedum spathulifolium R. Raiche, K. Zadnik, and H. Forbes 1989-10-3 UCBG 40 Siskiyou n of Seiad Valley on Seiad Valley Rd. 12.3 km n Hwy 96 (toward Cook and Green Pass, along East Fork Seiad Creek); East Fork Seiad Creek, n of Seiad Valley 900 Comment
  HSC43058  Sedum spathulifolium var. spathulifolium Ken Stillman 1976-8-24 448 Siskiyou E and N slopes of Williams Point 366 Comment
  UC711811  Senecio aronicoides Roxana S. Ferris and Laura Lorraine 1941-8-11 10505 Siskiyou slopes above Medicine Lake; Shasta National Forest Comment
  SEINET196520  Senecio aronicoides R. Tofarud, J. M. Tucker 1948-8-2 1763 Siskiyou Panther Meadows south slode on Mt. Shasta 2408 Comment
  CDA8622  Senecio hydrophilus T. C. Fuller 1958-9-12 1246 -58 Siskiyou Highway 99, 5 miles south of Yreka. 0 Comment
  RSA0125046  Senecio integerrimus var. exaltatus Geo. D. Butler 1909-6-22 956 Siskiyou Goosenest Meadows. Comment
  CAS-BOT-BC364041  Senecio integerrimus var. major Doris K. Kildale 1928-7-2 5382 Siskiyou Salmon Summit via Horn Creek trail Comment
  HSC82291  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1979-6-15 4824 Siskiyou Trinity-Siskiyou county line; at the head of Scott Mt. Creek at Scott Mt. Campground 1646 Comment
  CDA7665  Senecio sylvaticus D. Osterhandt, Don Shaw 1979-8-17 Siskiyou Near Forks of Salmon. 0 Comment
  CAS-BOT-BC364419  Senecio triangularis K. T. Stillman 1976-9-9 472 Siskiyou Marble Mountain Wilderness Area. N & NE & E side of Black Mtn. Comment
  CAS-BOT-BC364436  Senecio triangularis R. C. Wenk 2008-7-24 920 A Siskiyou Kangaroo Lake, south of the Gazelle-Callahan Rd. 1851 Comment
  CAS-BOT-BC364443  Senecio triangularis Doris K. Kildale 1928-8-19 6547 Siskiyou Hancock Lake, on trail to Marble Mt. 2133 Comment
  POM255759  Senecio triangularis Marion Ownbey, Ruth Ownbey 1938-7-20 1759 Siskiyou 1 mile NW of Dry Lake Lookout, summit of the Siskiyou Mountains. Comment
  RSA12485  Senecio triangularis C. B. Wolf 1934-7-4 5952 Siskiyou 6 8/10 mi. from Dry Lake Lookout, on rd. to Horse Creek, Siskiyou Mts. 1829 Comment
  OBI53729  Senecio triangularis David J. Keil, Kathleen Keil 1992-7-19 23468 Siskiyou Klamath NF. 1.4 mi NE of Salmon Mtn Summit on Sawyers Bar rd, SW of Etna Comment
  SBBG27378  Sibbaldia procumbens L. C. Wheeler 1934-8-2 3018 Siskiyou Alex Hole, Alex Cyn 1889 Comment
  RSA211491  Sibbaldia procumbens William J. Ferlatte 1967-8-20 1050 Siskiyou Caribou Basin. Sawtooth Ridge. 2043 Comment
  RSA448541  Sidalcea Louis C. Wheeler 1934-7-3 2862 Siskiyou Soda Creek, Sterling Mt. Siskiyou Mountains. (Mt. Diablo Mer.) 1677 Comment
  JEPS22217  Sidalcea asprella subsp. nana Rimo Bacigalupi with Reino and Aloha Alava 1958-9-2 6827 Siskiyou just below and n of road summit of Scott Mountain Road between Callahan and Trinity Center ([at Trinity County line]); Scott Mountain Road btw Callahan and Trinity Center 1615 Comment
  CAS-BOT-BC205783  Sidalcea oregana John Thomas Howell 1939-8-7 15122 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  RSA0048462  Sidalcea oregana Geo. E. Julian 1962-7-20 s.n. Siskiyou Mt. Shasta. Comment
  JEPS82481  Sidalcea oregana subsp. oregana Gilbert Muth 1965-8-12 212 Siskiyou Black Mt. Marble Mt. Wilderness Area, Black Mt. 1798 Comment
  UC108851  Sidalcea oregana subsp. oregana T. S. Brandegee 1887-7-1 Siskiyou Sisson's Comment
  JEPS67263  Sidalcea oregana subsp. spicata Geo. D. Butler 1908-7-23 62 Siskiyou Eastlick's Ranch Oro Fino, Eastlick's Ranch Comment
  CHSC71296  Silene antirrhina Vernon H. Oswald; Lowell Ahart 1998-6-11 9180 Siskiyou Shasta NF plantation on the west side of Hwy. 97 2.2 mi northeast of Lake Shastina-Big Springs Rd., northeast of Weed. 1066 Comment
  UC162885  Silene campanulata subsp. glandulosa Harley P. Chandler June, 1901 1715 Siskiyou ridges and meadows near Marble Mountain (Shackleford Canyon); North Coast Ranges, near Marble Mt., Shackleford Canyon 1828 Comment
  UC1299503  Silene campanulata subsp. glandulosa Freed W. Hoffman 1950-7-14 3620 Siskiyou Clear Creek Trail Baldy Mountain, Clear Creek trail (western Siskiyou County) Comment
  UCD98560  Silene campanulata subsp. glandulosa James P. Smith 1973-5-5 6370 Siskiyou in and around the O'neill campground near Seiad Valley. 487 Comment
  POM267218  Silene campanulata subsp. greenei Marion Ownbey, Fred G. Meyer 1940-7-6 2199 Siskiyou Summit of Cayenne Ridge, Marble Mountain Comment
  JEPS44102  Silene douglasii W. B. and V. G. Cooke 1965-7-12 35180 Siskiyou Mt. Shasta Mt. Shasta (Bolam Road) 1524 Comment
  HSC92645  Silene douglasii var. douglasii Jennifer Whipple 1977-8-6 2206 Siskiyou Dobkins Lake, just below outlet of lake 2058 Comment
  CHSC96163  Silene grayi L. P. Janeway 2006-7-3 8769 Siskiyou Klamath Ranges. Salmon Mountains; 100 m west of the Taylor Lake Trailhead Road 0.8 km south of the main road. North-facing edge at top of narrow rocky spur ridge. 1820 Comment
  HSC642  Silene grayi William J. Ferlatte 1967-7-6 607 Siskiyou Dorleska summit. 2134 Comment
  HSC92644  Silene grayi Jennifer Whipple 1976-7-9 1398 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2226 Comment
  UC60937  Silene grayi Geo. B. Grant September 1902 5094 Siskiyou Horse Camp , Horse Camp (Mount Shasta) 2438 Comment
  UC852865  Silene grayi Alice Eastwood 1912-9-1 2066 Siskiyou Mount Shasta Comment
  CAS-BOT-BC388952  Silene grayi A. A. Heller 1920-7-9 13436 Siskiyou Easterly slope of Mt. Eddy 2286 Comment
  CDA3454  Silene vulgaris R. S. Richards 1967-6-15 Siskiyou Highway 3, 1 mile south of Etna. 0 Comment
  CAS-BOT-BC75160  Sisymbrium altissimum Alice Eastwood 1912-7-15 1125 Siskiyou McCloud. Comment
  UC1043393  Smilax californica P. C. Everett and E. K. Balls 1954-10-12 20273 Siskiyou along creek n Walker (4.8 mi s from Beaver Creek Forest Service camp); Beaver Creek 335 Comment
  CHSC71606  Solanum parishii Vernon H. Oswald; Lowell Ahart 1998-8-3 9458 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 2.6 mi southeast of Gazelle-Callahan Rd. At roadside. 1426 Comment
  UC163710  Solanum umbelliferum Geo. D. Butler 1908-8-3 18 Siskiyou Log Lake, Shackleford Creek Log Lake; , Shackleford Creek Comment
  CAS-BOT-BC157043  Solanum umbelliferum L. R. Short 1933-5-30 120 Siskiyou Klamath National Forest. Bank of Highway 579 Comment
  HSC29090  Solidago elongata Frederick W. Oettinger 1968-8-12 494 Siskiyou Salmon Mountains, Tobacco Lake Trail 1890 Comment
  UC163885  Solidago elongata Geo. D. Butler 1910-7-20 1732 Siskiyou Goosenest foothills 1524 Comment
  UC1282003  Solidago velutina subsp. californica Louise Kellogg 1953-8-4 97 Siskiyou n of Callahan near Scott River (edge of Scott Valley); Scott Mountains, edge of Scott Valley Comment
  RSA96708  Sorbus californica Percy C. Everett, E. K. Balls 1954-10-13 20289 Siskiyou Indian Creek Rd to Obrien. At summit of pass. 21 miles NW of Hwy 96 at Happy Camp. 1555 Comment
  POM366679  Sorbus scopulina var. cascadensis M. B. Dunkle 1944-7-8 9083 Siskiyou Deer Creek. 1890 Comment
  CAS-BOT-BC390714  Spergularia rubra Louis C. Wheeler 1934-9-2 3239 Siskiyou Klamath National Forest. Miller Glade 1828 Comment
  RSA0097339  Spergularia rubra C. L. Hitchcock, J. S. Martin 1939-7-9 5334 Siskiyou Paradise Lake, near Kings Castle. 1768 Comment
  JEPS44996  Spiraea densiflora Geo. D. Butler 1908-8-4 277 Siskiyou Head of Shackleford Creek 1828 Comment
  HSC18899  Spiraea douglasii J. O. Sawyer 1968-6-25 307 Siskiyou NE of N Horse Range Lake 2012 Comment
  POM141116  Spiraea douglasii E. B. Copeland 1903-8-12 3836 Siskiyou Sisson. 1067 Comment
  HSC18898  Spiraea splendens var. splendens J. O. Sawyer 1968-7-23 596 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  RSA237629  Spiranthes Frederick W. Oettinger 1969-8-12 1343 Siskiyou Abbotts Lower Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1220 Comment
  RSA382197  Spiranthes romanzoffiana Louis C. Wheeler 1934-8-14 3117 Siskiyou Johnson Dairy; Siskiyou Mountains. Mt. Diablo Mer. 1829 Comment
  CHSC62565  Stachys ajugoides var. rigida L. P. Janeway 1993-8-30 4570 Siskiyou Along Gumboot Creek just below Gumboot Lake. 1844 Comment
  UC456146  Stachys ajugoides var. rigida I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  UCLA70760  Stachys ajugoides var. rigida C. G. Pringle 1881-8-16 Siskiyou Comment
  POM208265  Stachys rigida subsp. rigida Louis C. Wheeler 1934-6-4 2631 Siskiyou Hamburg Gulch off Horse Creek. (Mt. Diablo Mer.) Siskiyou Mts. 610 Comment
  POM70360  Stachys rigida subsp. rigida Geo. D. Butler 1910-7-24 1792 Siskiyou Yreka Creek. Comment
  HSC68021  Stellaria borealis subsp. sitchana J. P. Smith, Steve Selva 1970-6-16 4036 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1159 Comment
  CAS-BOT-BC391219  Stellaria longipes subsp. longipes Alice Eastwood 1921-7-28 10876 Siskiyou Medicine Lake Comment
  HSC41086  Stellaria nitens J. O. Sawyer 1970-3-4 2072 Siskiyou N of Idlewild Campground 762 Comment
  CAS-BOT-BC204674  Stenanthium occidentale James R. Shevock 2012-7-21 40558 Siskiyou Siskiyou Mts., Rogue River National Forest. Along Forest Service Road 1055, 0.5 mile below Cook and Green Pass, Applegate River Drainage 1432 Comment
  CAS-BOT-BC516468  Stenanthium occidentale Gilbert Muth 1966-7-19 427 Siskiyou Marble Gap Trail, along 1st bluff, Marble Mts. 1828 Comment
  HSC19124  Stephanomeria lactucina J. O. Sawyer 1969-8-4 1796 Siskiyou Along C.C.C. road 1341 Comment
  HSC29091  Stephanomeria lactucina Frederick W. Oettinger 1969-8-18 1438 Siskiyou Marble Mtn. Wilderness Area, on English Lake Trail, below Willow Spring 1677 Comment
  UCD136391  Stephanomeria lactucina R. Tofsrud; J. M. Tucker 1948-8-4 1784 Siskiyou around 1.5 miles northwest of McCloud. Comment
  HSC6228  Stephanomeria tenuifolia R. C. Wunner 1965-8-27 485 Siskiyou California Lava Beds National Monument; Devil's Homestead where the road passes through lava flow 1280 Comment
  CAS-BOT-BC375750  Stephanomeria virgata L. R. Abrams 1927-9-11 12141 Siskiyou Fork of Shasta and Klamath Rivers 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
  HSC30693  Stipa occidentalis var. californica Frederick W. Oettinger 1968-8-8 454 Siskiyou Marble Mtn. Widlerness Area, Crapo meadow near Tom Taylor Cabin. 2027 Comment
  HSC38392  Stipa occidentalis var. californica J. D. Ackerman, A. M. Montalvo 1975-7-19 587 Siskiyou 3 mi. E of McCloud, off Hwy. 89, on FS Rd. 39N13 1067 Comment
  HSC92575  Stipa occidentalis var. occidentalis Jennifer Whipple 1976-7-8 1363 Siskiyou Mt. Eddy, N and NE facing granite bluff above Dobkins Lake. 2317 Comment
  HSC97163  Stipa thurberiana L. Ahart 2005-6-9 12027 Siskiyou 3/5 mi. S of Hwy. 99/97 cutoff, 2 1/2 mi. ESE of Grenada 775 Comment
  UC726781  Streptanthus barbatus A. A. Heller 1918-7-16 13033 Siskiyou Mt. Eddy 2133 Comment
  UC1282013  Streptanthus barbatus Louise Kellogg 1953-8-8 109 Siskiyou creek on road between Callahan and Trinity Center (nw slope of mt); Scott Mountains, Klamath National Forest, Scott Mountain, Mu 1402 Comment
  CAS-BOT-BC87845  Streptanthus tortuosus John Thomas Howell 1937-7-22 13298 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC87874  Streptanthus tortuosus Donald Myrick 1961-6-20 273 Siskiyou Near Mount Shasta City. 1066 Comment
  POM203465  Streptanthus tortuosus Alice Eastwood, J. T. Howell 1934-4-20 1773 Siskiyou Junction of Klamath and Shasta Rivers. Comment
  RSA603096  Streptanthus tortuosus L. C. Wheeler 1935-6-27 3600 Siskiyou Head of Etna Creek, Marble Mountains 1799 Comment
  UC625501  Streptanthus tortuosus Frank W. Gould 1938-6-27 472 Siskiyou 3 mi n Mt. Shasta (town) (near hwy) 1082 Comment
  UCD116311  Streptanthus tortuosus Robert E. Preston 1984-7-25 492 Siskiyou on summit slopes of Little Mt. Hoffman. 2196 Comment
  HSC18963  Streptanthus tortuosus var. tortuosus J. O. Sawyer 1969-7-25 1533 Siskiyou SE facing upper slope W of Sugar Lake 1997 Comment
  HSC18896  Streptopus amplexifolius J. O. Sawyer 1968-7-9 435 Siskiyou W of Little Duck Lake 1936 Comment
  UC164034  Streptopus amplexifolius var. americanus Geo. D. Butler 1908-8-3 95 Siskiyou Log Lake; Shackleford Creek Comment
  UCD138354  Stuckenia pectinata Verne Grant; Irving Schneider 1947-8-26 8289 Siskiyou 1/2 mile west of Tulelake. 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
  HSC45886  Symphoricarpos albus var. laevigatus Laura Witherspoon 1978-8-17 93 Siskiyou Klamath National Forest, 0.3 mi. from Jct. with Springs School Rd. and Meiss Lake, Sams Neck Rd. 1354 Comment
  SFV5181  Symphoricarpos mollis B. C. Templeton 1960-6-21 8559 Siskiyou Klamath Mountains Near the top of Scott Mountain. On mountain slopes. 1645 Comment
  UC1408788  Symphoricarpos mollis Frederick W. Oettinger 1968-8-6 542 Siskiyou ne side Little Medicine Lake (due n of Hancock Lake, vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1996 Comment
  HSC30275  Symphyotrichum bracteolatum William J. Ferlatte 1971-9-18 1372 Siskiyou Big Flat near public campground 1524 Comment
  CAS-BOT-BC98433  Symphyotrichum spathulatum Doris K. Kildale 1929-8-24 9102 Siskiyou Rattlesnake Meadow, Preston Peak 1676 Comment
  OBI77861  Symphyotrichum spathulatum var. spathulatum David J. Keil, Kathleen Keil 1992-7-24 23570 Siskiyou E of McCloud along hwy 89, 7.7 mi W of Shasta County line Comment
  HSC26155  Symphyotrichum subspicatum J. P. Smith, J. O. Sawyer 1972-9-14 5804 Siskiyou Miner's Creek Rd. just S of French Creek Rd. between Callahan and Etna. 915 Comment
  UCD86126  Taeniatherum caput-medusae Beecher Crampton 1969-6-19 8472 Siskiyou 1 mile north of Edgewood. Comment
  UC226163  Tanacetum parthenium H. E. Brown Jun 15 1897-Jun 30 1897 482 Siskiyou n side Mt. Shasta 1524 Comment
  CAS-BOT-BC85232  Taxus brevifolia John Thomas Howell; Gordon H. True 1972-6-8 48862 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  POM210933  Taxus brevifolia L. C. Wheeler 1934-8-14 3138 Siskiyou Siskiyou Mountains, west end of White Mountain 1768 Comment
  SEINET3876109 Image available Taxus brevifolia J. P. Smith, Steve Selva 1970-7-15 4355 Siskiyou Klamath National Forest; road to Happy Camp.; 0 732 Comment
  UC455419  Taxus brevifolia I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1828 Comment
  SEINET11739097  Taxus brevifolia R. Gankin, Hildreth, W. R. 1967-1 1186 Siskiyou near trail to Marble Mountain Wilderness Area (Yellow Jacket Ridge) N of Sawyers Bar 1402 Comment
  UCSB22756  Tellima grandiflora Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  CAS-BOT-BC88063  Thelypodium brachycarpum A. A. Heller 1905-6-9 8011 Siskiyou Montague. Comment
  UC1034643  Thelypodium brachycarpum Milo S. Baker 1955-6-26 13074 Siskiyou 4 mi s Gazelle (Highway 99) 914 Comment
  POM143233  Thelypodium brachycarpum Geo. D. Butler 1910-8-21 1850 Siskiyou Shasta Valley Comment
  CAS-BOT-BC88113  Thelypodium laciniatum L. E. Smith 1913-4-25 642 Siskiyou Yreka. Comment
  UC62776  Thelypteris nevadensis unknown 1883-1 Siskiyou Castle Lake Castle Lake Comment
  JEPS54043  Thlaspi montanum var. montanum Geo. D. Butler 1908-6-27 119 Siskiyou Forest House Mt. Comment
  UC609354  Thlaspi montanum var. montanum Eleanor Burks Hart 1938-8-17 907 Siskiyou meadow on se side Upper Wright Lake; se side of Upper Wright Lake 2225 Comment
  CAS-BOT-BC66797  Thysanocarpus curvipes Alice Eastwood; John Thomas Howell 1936-6-13 2761 Siskiyou Junction of Klamath and Shasta rivers. Comment
  UC10993  Thysanocarpus curvipes T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  SEINET3166358  Thysanocarpus curvipes subsp. curvipes P. J. Alexander 2009-4-7 991 Siskiyou East side of the Shasta River, E side of CA Hwy. 263, 4.2 miles NNE of central Yreka, 3.2 miles S of the jct. with CA Hwy. 96. 738 Comment
  RSA0049970  Thysanocarpus radians A. A. Heller 1929-5-14 14856 Siskiyou In a field along U.S. Highway #99, 2 miles south of Yreka. Comment
  RSA237921  Tofieldia glutinosa subsp. occidentalis Frederick W. Oettinger 1967-8-3 232 Siskiyou West end of Little Hancock Lake. The Salmon Mountains: the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area 2043 Comment
  UC70447  Tofieldia occidentalis subsp. occidentalis Milo S. Baker 1899-8-4 Siskiyou Dead Horse Canyon Comment
  SEINET10810172  Torreyochloa pallida var. pauciflora Louis C. Wheeler 1935-7-26 Wheeler 3714 Siskiyou Siskiyou Mts., Jaynes Canyon. Wet sunny meadow. Mt. Diablo Mer. S 12 T 47 N, R 10 W. 1951 Comment
  HSC18875  Triantha occidentalis subsp. occidentalis J. O. Sawyer 1968-7-22 528 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC44996  Triantha occidentalis subsp. occidentalis J. P. Smith, Steve Selva 1970-7-18 4481 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  HSC69161  Triantha occidentalis subsp. occidentalis Maralyn A. Renner 1980-8-4 2206 Siskiyou Flint Valley 1390 Comment
  CAS-BOT-BC519561  Triantha occidentalis subsp. occidentalis Alice Eastwood 1912-7-22 1313 Siskiyou Sisson Comment
  CAS-BOT-BC519566  Triantha occidentalis subsp. occidentalis Annie M. Alexander; Louise Kellogg 1949-7-29 5894 Siskiyou Sky High Valley, Marble Mts.: Edge Hidden Lake, above Sky High Lake 1859 Comment
  HSC14451  Trichostema lanceolatum C. B. Wolf 1927-8-26 1041 Siskiyou Along Klamath River, 4 mi. N of Gottville Comment
  UC54389  Trifolium eriocephalum var. eriocephalum H. M. Hall and E. B. Babcock 1903-6-15 4076 Siskiyou near Upton; Sierra Nevadas, Mount Shasta 1219 Comment
  CAS-BOT-BC219045  Trifolium howellii Geo. D. Butler 1910-7-9 1689 Siskiyou Shackleford Creek 1219 Comment
  UC637129  Trifolium hybridum Edward Lee 1934-8-10 1016 Siskiyou near Hamburg (s bank of Klamath River betw Mckinney and Parkhouse Creeks) 609 Comment
  CDA4330  Trifolium incarnatum Don Shaw 1977-5-26 Siskiyou Highway 96 near Blue Heron Ranch, Somes Bar. 0 Comment
  HSC30417  Trifolium longipes Frederick W. Oettinger 1968-8-17 553 Siskiyou Salmon Mountains: N to NW of Pine Lake 1860 Comment
  UC1045267  Trifolium longipes subsp. elmeri W. B. Cooke 1940-6-6 15037 Siskiyou Near Castle Lake Road. 1524 Comment
  CHSC977  Trifolium longipes subsp. hansenii E. England 1939-6-30 Siskiyou Mt. Eddy. 1828 Comment
  UC968630  Trifolium longipes var. elmeri C. L. Hitchcock and J. S. Martin 1939-7-7 5275 Siskiyou ca 13 mi s Takilma (Oregon); Sanger Peak Trail Comment
  UC1733732  Trifolium macrocephalum Frank Gould, Kay H. Beach 1940-5-15 1236 Siskiyou Bull Meadows Comment
  UCD111340  Trifolium macrocephalum B. Crampton 1959-4-1 s.n. Siskiyou Ernie Solus ranch; Dryland pasture, Edgewood area. 914 Comment
  UC631546  Trifolium microcephalum A. A. Heller 1916-7-20 12462 Siskiyou Metcalf's ranch ne base of Mt. Eddy 1188 Comment
  HSC15160  Trifolium pratense Mrs. H. P. Bracelin 1931-6-20 431 Siskiyou Metcalf Ranch, N side of Mt. Eddy 915 Comment
  SJSU6543  Trifolium productum R. W. Trivelpiece 1973-6-28 157 Siskiyou Big Duck L, Scott R drainage c. 7.5 mi W of Callahan 2042 Comment
  CHSC91362  Trifolium retusum Lowell Ahart; John Dittes 2005-6-10 12124 Siskiyou Northeast of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  UC164234  Trifolium wormskioldii Geo. D. Butler 1909-6-26 915 Siskiyou McNutty's Field near Yreka Comment
  UC726165  Trifolium wormskioldii A. A. Heller 1916-7-20 12459 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  HSC75148  Trillium ovatum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5705 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC36427  Trillium ovatum subsp. oettingeri J. O. Sawyer 1969-6-12 937 Siskiyou Along Duck Lake Creek 1921 Comment
  HSC69565  Trisetum cernuum Maralyn A. Renner 1980-8-6 2272 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 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
  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
  UC843609  Triteleia ixioides subsp. anilina A. A. Heller 1916-6-20 12413 Siskiyou ne base Mt. Eddy (Metcalf's Ranch); ne base Mt. Eddy, Metcalf's Ranch 1188 Comment
  CAS-BOT-BC524320  Triteleia ixioides subsp. anilina Alice Eastwood 1921-7-24 10957 Siskiyou Castle Lake Comment
  SEINET10534159  Triteleia ixioides subsp. anilina A. Arthur Heller 1905-6-5 Heller 7986 Siskiyou Pleateau above Shasta Springs. Comment
  HSC32590  Tsuga mertensiana Steven Lagos 1974-5-26 85 Siskiyou Duck Lake Creek drainage, Bulk Collection 56 1463 Comment
  UC1190123  Tsuga mertensiana Ira L. Wiggins 1955-7-27 13566 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  POM207277  Umbellularia californica Marion Ownbey, Fred G. Meyer 1940-7-8 2223 Siskiyou Dry hillside along Indian Creek. 12 miles above Happy Camp. Comment
  JEPS93955  Urtica dioica subsp. holosericea Vernon H. Oswald and Lowell Ahart 1998-9-16 9639 Siskiyou 5.3 mi e of Highway 97 (Highway 161 adjacent to a marsh at the Lower Klamath National Wildlife Refuge); Lower Klamath National Wildlife Refuge, Highway 161 1243 Comment
  UC848743  Urtica dioica subsp. holosericea Alice Eastwood 1912-7-18 1217 Siskiyou Sisson Comment
  SEINET8360227  Utricularia minor Barbara L. Wilson 2011-8-23 16864 Siskiyou Fawn Creek meadows; a couple hundred yards downstream. 1879 Comment
  CAS-BOT-BC199190  Vaccinium cespitosum John Thomas Howell 1937-7-24 13416 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC228828  Vaccinium cespitosum Peter W. Fritsch; James R. Shevock; Lu Lu 2012-6-19 1926 Siskiyou The Eddys Region, Shasta-Trinity National Forest. Ca. 100 m S of Cedar Lake along road to Cliff Lake, headwaters of the Sacramento River 1744 Comment
  CHSC30109  Vaccinium cespitosum M. S. Taylor 1980-5-4 2782 Siskiyou Cedar Lake, ca. 11 mi sw of Mt. Shasta City. 1737 Comment
  CHSC71580  Vaccinium cespitosum Vernon H. Oswald; Lowell Ahart 1998-8-3 9454 Siskiyou East end of Rock Fence Lake Rd. (USFS 41N18) in the Scott Mtns. east of Kangaroo Lake. Near Rock Fence Creek. 1920 Comment
  HSC19520  Vaccinium cespitosum J. O. Sawyer 1969-7-18 1161 Siskiyou E of Waterdog Lake 2012 Comment
  RSA238838  Vaccinium cespitosum Frederick W. Oettinger 1969-7-14 1014 Siskiyou N. shoreline of Charmaine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  HSC19336  Vaccinium membranaceum J. O. Sawyer 1969-6-12 876 Siskiyou SE facing upper slope above Sugar Creek 1982 Comment
  HSC67665  Vaccinium membranaceum John Palmer 1980-7-24 583 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  UCD70131  Vaccinium parvifolium D. Sanchez-Mata 1997-9-19 s.n. Siskiyou Klamath National Forest. Happy Camp-O'Brien. Indian Creek Road. Jefferson State Scenic Byway. 1400 Comment
  HSC19521  Vaccinium scoparium J. O. Sawyer 1969-7-11 1536 Siskiyou S Sugar Creek 1829 Comment
  HSC30274  Vahlodea atropurpurea William J. Ferlatte 1971-9-18 1377 Siskiyou Caribou Basin, lower slope of Sawtooth Ridge. 2195 Comment
  UC169080  Valeriana sitchensis subsp. sitchensis Harley P. Chandler 1901-6-22 1583 Siskiyou Haypress Meadow Marble Mountain (ridges and meadows near); North Coast Ranges, Marble Mountain 1828 Comment
  JEPS83861  Vancouveria chrysantha Wayne Roderick July 1976 Siskiyou along trail to spring vicinity Cook and Green Pass (Siskiyou Mts.); , vicin Cook and Green Pass 1463 Comment
  HSC99652  Vancouveria planipetala Jimerson, J. Pageau 1979-6-15 565 Siskiyou Near Bark Shanty Camp, close to the town of Orleans 1067 Comment
  HSC27688  Vancouveria planipetala Carl W. Mize 1972-6-10 47 Siskiyou 100 yds. above Steinacher Creek 305 Comment
  HSC102708  Ventenata dubia J. P. Smith 2013-6-17 13741 Siskiyou Margin of vernal pool and adjacent conifer forest. 1430 Comment
  UC455607  Veratrum californicum var. californicum I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake Comment
  JEPS24442  Veratrum insolitum Rimo Bacigalupi with L. Constance and L. R. Heckard 1960-7-21 7483 Siskiyou 14 mi e Cecilville (6 mi w of rd summit, along new rd from Cecilville to Callahan, watershed of e fork of the South Fork of the Salmon River, just above Six-mile Creek) 1371 Comment
  JEPS62214  Veratrum viride Geo. D. Butler 1908-8-26 536 Siskiyou e side Salmon Mts. (upper camp) Comment
  UCSB14918  Verbascum blattaria Breedlove, Dennis 1962-6-11 Siskiyou Scott River, 3.5 miles south of Scott Bar 609 Comment
  HSC21168  Verbascum thapsus D. M. Thomson 1965-8-14 188 Siskiyou Lava Beds National Monument, near Mammoth Crater Comment
  POM128338  Veronica alpina var. alterniflora M. S. Baker 1898-8-1 489 Siskiyou Medicine Lake. Comment
  HSC29305  Veronica serpyllifolia subsp. humifusa Frederick W. Oettinger 1969-8-19 1463 Siskiyou Marble Mtn. Wilderness Area, between Abbott's Lake and Charmaine Lake 1860 Comment
  RSA238794  Veronica serpyllifolia var. humifusa Frederick W. Oettinger 1969-8-19 1463 Siskiyou Between Abott's Lake and Charmaine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  RSA29915  Veronica triphyllos Louis C. Wheeler 1935-4-18 3433 Siskiyou Yreka. 823 Comment
  CHSC1913  Veronica wormskjoldii K. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. 2316 Comment
  HSC19338  Veronica wormskjoldii J. O. Sawyer 1969-7-12 1357 Siskiyou Edge of Sugar Lake 1799 Comment
  UCD78083  Vicia americana Robert E. Preston 2002-6-21 1875 Siskiyou Klamath National Forest, Rainbow Mountain, S slope, N of Trout Creek 1749 Comment
  CAS-BOT-BC419721  Vicia americana subsp. americana Julie Kierstead Nelson; Jordan Rainbow 2014-5-21 2014 -020 Siskiyou Forest Road 42N84 off Highway 97, north side of Mt. Shasta. 1088 Comment
  HSC61511  Vicia americana var. americana Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail 1220 Comment
  JEPS25538  Vicia americana var. americana Rimo Bacigalupi with Lincoln Constance 1959-6-16 7154 Siskiyou above and ne Mt. Shasta (town) (w slope of Mt Shasta); Mt. Shasta 1414 Comment
  HSC30422  Vicia americana var. americana Frederick W. Oettinger 1969-8-5 1210 Siskiyou Marble Mtn. Wilderness Area, Willow Spring on English Lake Trail 1677 Comment
  POM28946  Vicia americana var. americana Geo. D. Butler 1910-5-30 1440 Siskiyou Humbug Mountain 1220 Comment
  NY50660  Vicia pumila A. A. Heller 1905-6-1 7938 Siskiyou Between Upper Soda Spring and Shasta Retreat Comment
  UC1333323  Vicia villosa subsp. villosa Dorothy Parker 1949-7-3 328 Siskiyou Scott Valley 914 Comment
  CAS-BOT-BC264061  Viola adunca Elmer I. Applegate 1895-5-29 44 Siskiyou Sisson Comment
  HSC29304  Viola adunca Frederick W. Oettinger 1969-8-24 1534 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: English Lake campsite near lakeshore 1753 Comment
  HSC91247  Viola adunca var. adunca Jennifer Whipple 1976-6-17 1024 Siskiyou Near Durney Lake 2073 Comment
  UCSB15821  Viola adunca var. adunca Breedlove, Dennis 1962-6-11 Siskiyou along State Highway 89, 17.6 miles east of McCloud; Cascade Mountains 1219 Comment
  UC164272  Viola douglasii Geo. D. Butler 1910-4-21 1208 Siskiyou Oro Fino Comment
  HSC44384  Viola glabella Maralyn O'Meara 1973-6-24 230 Siskiyou Statute Lake Creek where it is crossed by Music Creek logging rd., 0.25 mi. from confluence of Statute Lake Creek and Music Creek 1829 Comment
  HSC36521  Viola glabella A. M. Montalvo 1973-5-20 55 Siskiyou Marble Mtns. Wilderness Area; Bear Creek Trail to Bear Lake 1524 Comment
  RSA120704  Viola glabella S. S. Tillett 1956-7-9 645 Siskiyou Along stream into N end of small lake E of Scott Mtn. Siskiyou-Trinity Co line,ca 8 miles SE of Callahan. 1829 Comment
  RSA238814  Vi