Search Results — 2000 specimen records retrieved (1383 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78127  Abies X shastensis Alan Bell 1962-7-1 s.n. Siskiyou Mosquito Lake, headwaters of Tangle Blue Creek, tributary of Trinity River, Trinity-Salmon Primitive Area 1981 Comment
  HSC44565  Abies X shastensis Robert Wharton 1977-10-9 Siskiyou N slope of Mt. Shasta, Bulk Collection #118 2287 Comment
  UC637119  Abies grandis Edward Lee 1934-8-12 1053 Siskiyou 0.25 mi w of the mouth Walker Creek (s side of the Klamath River, e end of Seiad Valley); Seiad Valley 426 Comment
  HSC31508  Abies lasiocarpa Steve Selva, Roger Jensen 1974-8-25 52 Siskiyou W end of Little Duck Lake Comment
  RSA226611  Abies lasiocarpa J. O. Sawyer 1969-8-1 1600 Siskiyou Behind Horseshoe Lake 1920 Comment
  HSC69711  Abies magnifica Maralyn A. Renner 1980-7-15 1773 Siskiyou English Lake inlet 1780 Comment
  JEPS84284  Abies procera L. R. Heckard with R. Raiche and S. Winchester 1986-7-17 6487 Siskiyou ne of summit Copper Butte (e of Cook and Greene Pass) 1767 Comment
  RSA237418  Abies procera Frederick W. Oettinger, R. F. Thorne 1969-8-6 1239 Siskiyou Below Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1883 Comment
  HSC22292  Acer glabrum var. torreyi J. O. Sawyer 1969-6-10 794 Siskiyou Lower SE slope above Sugar Creek, near Sugar Lake. 1799 Comment
  JEPS80656  Acer glabrum var. torreyi W. B. and V. G. Cooke 1977-9-25 54884 Siskiyou on roadside bank above Mud Creek Dam Road Mt. Shasta (Mt. Shasta) 1676 Comment
  SEINET12765788  Acer glabrum var. torreyi Mary Merello, H. H. Schmidt; L. Woodruff 1993-6-22 690 Siskiyou Sasta National Forest outside of Mt. Shasta City. Along Forest Service Road 26 to Lake Siskiyou.; 0 1090 Comment
  POM87431  Acer macrophyllum Geo. D. Butler 1910-4-24 1236 Siskiyou Shakleford Creek Comment
  RSA240066  Acer macrophyllum Frederick W. Oettinger 1969-8-25 1553 Siskiyou Little North Fork stream crossing along new trail that goes from the end of the logging road to the Devils Canyon Trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1220 Comment
  UC166209  Acer negundo Geo. D. Butler 1910-6-30 1617 Siskiyou Yreka Creek Comment
  JEPS37100  Achillea millefolium W. L. Jepson 1940-7-3 20095 Siskiyou Bartle 1188 Comment
  RSA715491  Achillea millefolium L. Ahart, John Dittes 2005-6-9 12039 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  SD104870  Achillea millefolium Darley F. Howe 1979-6-26 Siskiyou Military Pass Road, 6 miles southeast of California Highway 97 1830 Comment
  UC29235  Achillea millefolium T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  UC618703  Achillea millefolium W. Bridge Cooke 1938-6-24 11067 a Siskiyou open meadow portion of the spring MacBride Springs; Mount Shasta 1524 Comment
  UC630400  Achillea millefolium Annetta Carter 1939-8-21 1476 Siskiyou summit of peak above se end (12 mi sw of Etna) Taylor Lake; Salmon Mountains 2286 Comment
  CAS-BOT-BC400004  Achlys triphylla A. M. Vollmer; L. Beane 1951-6-2 87 Siskiyou Happy Camp, Klamath River Highway Comment
  CAS-BOT-BC210717  Achnatherum lemmonii Geo. D. Butler 1909-6-4 810 Siskiyou Near Yreka Comment
  RSA577538  Achnatherum lemmonii var. lemmonii L. C. Wheeler 1935-5-11 3480 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  UCD50946  Achnatherum occidentale A. H. Murphy 1956-8-16 56 DD Siskiyou Klamath National Forest, Tangle Blue Lake. 1767 Comment
  UC60168  Achnatherum occidentale subsp. californicum W. L. Jepson 1895-1 Siskiyou Shasta Comment
  UC618872  Achnatherum occidentale subsp. californicum W. B. Cooke 1938-7-15 11168 Siskiyou Bear Springs Mount Shasta 1524 Comment
  UC1025021  Achnatherum occidentale subsp. occidentale Leo Whitney 1935-7-11 3507 Siskiyou 4 mi e Medicine Lake (Glass Mountain); Glass Mountain Comment
  UC1265473  Achnatherum occidentale subsp. occidentale Frederick W. Oettinger 1968-9-6 744 a Siskiyou above Tom's Lake (Bear Meadow); Salmon Mtns., High Lake Basins near English Peak, Marble Mtn 2186 Comment
  CAS-BOT-BC218018  Achnatherum thurberianum John Thomas Howell 1952-6-14 28352 Siskiyou Serpentine Knoll, 7 miles E of Callahan on road to Gazelle Comment
  UC593457  Achnatherum thurberianum E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1959 Siskiyou 2 mi s on highway from Bray to Weed Sheep Rock; Mt. Shasta 1235 Comment
  UC166598  Achyrachaena mollis Geo. D. Butler 1909-5-4 666 Siskiyou dryland near Yreka Comment
  UCD103802  Acmispon americanus var. americanus A. A. Heller 1915-7-18 12116 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1188 Comment
  HSC43030  Acmispon micranthus J. O. Sawyer, Ken Stillman 1976-7-2 2803 Siskiyou Slopes and ridges E of Little N Fork Trail. 732 Comment
  UCD104265  Acmispon nevadensis var. nevadensis Tofsrud 1948-8-1 s.n. Siskiyou East edge of McCloud. Comment
  JEPS41327  Aconitum columbianum Ruby Van Deventer 1938-7-31 66 Siskiyou s. Little Greyback Mt. (Poker Flat); Poker Flat 1524 Comment
  UCD95288  Aconitum columbianum AHM 1957-7-23 57 M Siskiyou On the border of Trinity County. Deadfall creek Shasta National Forest (east base of Mt. Eddy). 2011 Comment
  CAS-BOT-BC391515  Aconitum columbianum subsp. columbianum Alice Eastwood 1912-7-17 1189 a Siskiyou Sisson Comment
  RSA238289  Aconitum columbianum subsp. viviparum Frederick W. Oettinger 1967-8-3 236 Siskiyou Along trail SE side of Hancock Lake. The Salmon Mtns. High lake basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1936 Comment
  UCD98556  Aconogonon newberryi Collector unknown Date unknown s.n. Siskiyou location unknown. Comment
  CAS-BOT-BC391708  Actaea rubra L. E. Smith 1914-9-1 757 Siskiyou Castle Lake Comment
  RSA238292  Actaea rubra subsp. arguta Frederick W. Oettinger 1968-9-1 635 Siskiyou E. shore of Abbotts Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1723 Comment
  CAS-BOT-BC68960  Adiantum aleuticum Edward Lee 1934-8-11 1033 Siskiyou Walker Creek, a tributary of the Klamath River (east end of Seniad Valley) 609 Comment
  SEINET10953807 Image available Adiantum aleuticum Edwin B. Copel 1903-9-6 Copeland 3859 Siskiyou Mt. Eddy. 1463 Comment
  JEPS62947  Agastache urticifolia Ruby Van Deventer 1938-7-31 188 Siskiyou Poker Flat 1219 Comment
  SD88560  Agastache urticifolia Darley F. Howe 1972-7-6 Siskiyou 1.3 miles south of Oregon state line on road to Happy Camp 1646 Comment
  RSA31957  Agastache urticifolia A. A. Heller 1938-7-13 15263 Siskiyou Among lava rocks at Bray. Comment
  CAS-BOT-BC29451  Ageratina occidentalis Alice Eastwood 1912-8-30 1972 Siskiyou Mount Eddy Comment
  UC618674  Ageratina occidentalis W. Bridge Cooke 1938-8-24 11580 Siskiyou near (just w) Bolam Creek; Mount Shasta Comment
  CAS-BOT-BC29448  Ageratina occidentalis Louis C. Wheeler 1934-8-9 3070 Siskiyou Dead Cow Creek, Klamath National Forest 1981 Comment
  HSC29227  Ageratina occidentalis Frederick W. Oettinger 1968-8-23 616 Siskiyou Diamond Lake spillway half way to English Lake 1951 Comment
  HSC62468  Agoseris aurantiaca Ruby Van Deventer 1939-7-18 Siskiyou Twin Valley Comment
  HSC92334  Agoseris aurantiaca Jennifer Whipple 1976-7-24 1554 Siskiyou SW of Dobkins Lake along the drainage into the lake 2256 Comment
  JEPS101308  Agoseris aurantiaca var. aurantiaca Dean W. Taylor 1999-8-12 17313 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley) 1889 Comment
  CHSC98747  Agoseris glauca var. monticola L. P. Janeway; B. Castro 2007-7-29 9139 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2067 Comment
  SFV5158  Agoseris grandiflora B. C. Templeton 1960-6-21 8525 Siskiyou Between the agricultural Experiment Station and the California state line._x000B_Grassy hillside. Comment
  JEPS23680  Agoseris heterophylla var. heterophylla W. L. Jepson 1894-1 Siskiyou Sisson Comment
  RSA142619  Agoseris monticola Philip A. Munz 1960-8-22 24185 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  POM208353  Agoseris retrorsa L. C. Wheeler 1934-6-11 2686 Siskiyou North Hungry Creek , Siskiyou Mtns. (Mt Diablo Mer) 1311 Comment
  CAS-BOT-BC126988  Agrostis exarata A. A. Heller 1915-7-18 12114 Siskiyou Metcalf's Ranch, northeast base of Mount Eddy. 1249 Comment
  CAS-BOT-BC139571  Agrostis gigantea W. R. Dudley 1909-8-7 s.n. Siskiyou Little Bear Valley near Dulit Flat. Comment
  CHSC69847  Agrostis pallens Frederick W. Oettinger 1969-9-2 1587 Siskiyou Salmon Mountains Western Siskiyou County. The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. Bear Meadow near Tom Taylor's Cabin. 2164 Comment
  HSC30549  Agrostis pallens Frederick W. Oettinger 1969-8-22 1488 Siskiyou Marble Mtn. Wilderness Area, lower meadow at margin of woods, Horse Range Lake, Salmon Mountains 1768 Comment
  UC922324  Agrostis pallens Annie M. Alexander and Louise Kellogg 1949-7-20 5818 Siskiyou on hill n Paradise Lake; Marble Mountains 1920 Comment
  SEINET7594102 Image available Agrostis pallens F. W. Oettinger 1969-1 1390 b Siskiyou near Upper English Lake, Salmon Mountains 1768 Comment
  JEPS72964  Agrostis scabra W. L. Jepson 1940-7-4 20112 Siskiyou 5 mi se Barlte; Big Bear Flat 1219 Comment
  HSC34301  Agrostis stolonifera J. P. Smith, J. O. Sawyer 1973-8-14 7294 Siskiyou W shore of Campbell Lake 1768 Comment
  UCD53513  Agrostis stolonifera Geo. D. Butler 1909-6-28 852 Siskiyou Almy Creek, near Yreka. Comment
  HSC30586  Agrostis thurberiana Frederick W. Oettinger 1969-8-22 1503 Siskiyou Salmon Mountains, Horse Range Lake, S of Horse's Hole Pond. 1875 Comment
  CAS-BOT-BC138480  Agrostis variabilis John Thomas Howell 1937-7-24 13419 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  HSC77086  Agrostis variabilis K. T. Stillman 1976-7-30 331 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  UC618871  Agrostis variabilis W. Bridge Cooke 1938-9-17 11682 Siskiyou Horse Camp Mount Shasta, Horse Camp Comment
  UCD35443  Agrostis variabilis Beecher Crampton 1956-8-22 3857 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  HSC65376  Aira caryophyllea J. P. Smith 1973-5-5 6550 Siskiyou Scott Bar along Scott River Comment
Read comments
Jan 31 2012
  CAS-BOT-BC267064  Alisma W. R. Ernst 1958-8-8 284 Siskiyou Grass Lake area, about 32 miles S of Oregon state line on Highway 97 Comment
  UC164477  Allium acuminatum Geo. D. Butler 1909-5-26 788 Siskiyou hill near Yreka Comment
  CAS-BOT-BC459427  Allium acuminatum Geo. D. Butler 1909-5-26 788 Siskiyou Herzog Hill Comment
  POM109874  Allium acuminatum Geo D. Butler s.n. Siskiyou Yreka. Comment
  HSC42108  Allium amplectens J. O. Sawyer, K. T. Stillman 1976-5-29 2751 Siskiyou Along Specimen Creek 884 Comment
  CAS-BOT-BC94409  Allium campanulatum R. C. Wenk 2005-7-15 213 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail. Top of pass, going N along ridge 2133 Comment
  HSC546  Allium campanulatum William J. Ferlatte 1967-7-26 766 Siskiyou NW side of Caribou Mtn. 1829 Comment
  UC164160  Allium falcifolium Geo. D. Butler 1908-8-6 110 Siskiyou along trail on summit n West Fork of Woolly Creek Comment
  CAS-BOT-BC469231  Allium falcifolium K. T. Stillman 1976-8-7 194 Siskiyou Marble Mountain Wilderness Area 1828 Comment
  HSC77113  Allium falcifolium K. T. Stillman 1976-6-25 72 Siskiyou Above Elk Valley 1982 Comment
  JEPS104939  Allium siskiyouense Dean W. Taylor 1996-6-28 15751 Siskiyou Antelope Mountain (about 8 air miles south of Yreka) 1798 Comment
  RSA131708  Allium siskiyouense Lee W. Lenz 1958-6-22 23298 Siskiyou Crest of Siskiou on road from Happy Camp to Cave Jct. (Ore) 1555 Comment
  HSC78219  Allium validum L. P. Janeway 1983-8-6 512 Siskiyou At Poker Flat, lower part of meadow near drainage 1524 Comment
  POM109982  Allium validum Geo D. Butler 1908-8-3 112 Siskiyou Log Lake, Shackleford Creek Comment
  CAS-BOT-BC171399  Alnus incana subsp. tenuifolia John Thomas Howell 1937-7-23 13350 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  SBBG25321  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou lower Red Rock Valley, Marble Mountain Wilderness Area 1493 Comment
  CHSC118466  Alnus incana subsp. tenuifolia Julie Kierstead Nelson 2015-8-13 2015 -131 Siskiyou UTM NAD 83 Zone 10, 536590m E, 4583713m N. Headwaters of west fork Parks Creek, 2 miles NE of China Mountain 2176 Comment
  UC1034619  Alnus rhombifolia Douglas Barbe 1955-6-27 5 Siskiyou 0.8 mi n Callahan (in dredgings near Hjertagers' Mill); Klamath Mountains 975 Comment
  CLARK-A1528-7858  Alnus tenuifolia John C. Roos 1948-9-1 3953 Siskiyou Etna Comment
  JEPS82434  Alnus viridis subsp. sinuata Gilbert Muth 1966-7-29 462 Siskiyou Marble Valley Marble Mt. Wilderness Area (by waterfall) 1828 Comment
  UC1333317  Alnus viridis subsp. sinuata Dorothy Parker 1949-5-26 Siskiyou Sugar Creek Salmon Mountains Range 1676 Comment
  UC1213791  Alyssum alyssoides Jean Langenheim 1957-5-19 4341 Siskiyou along rd. between Gazelle and Callahan Comment
  CHSC27776  Alyssum desertorum William F. Frank 1978-4-1 1 Siskiyou Foothills facing lake. Ca. 3 miles in to end of public access road at s Lake Shastina. 914 Comment
  HSC86362  Amelanchier alnifolia J. O. Sawyer 1983-7-7 4233 Siskiyou Top of Medicine Mtn. 2085 Comment
  CAS-BOT-BC136717  Amelanchier alnifolia var. pumila Donald Myrick 1961-6-20 279 Siskiyou On road to Bear Springs east of Mt. Shasta City Comment
  HSC4956  Amelanchier pallida J. O. Sawyer 1968-9-9 657 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC65271  Amelanchier pallida Rich White 1978-7-6 247 Siskiyou Pond above Elk Hole 1524 Comment
  JEPS126019  Amelanchier pallida E. T. Doucette 2013-5-20 13 -132 Siskiyou Greenhorn Road, Yreka, 8.7 miles from business district. Comment
  CAS-BOT-BC136903  Amelanchier utahensis L. E. Smith 1913-5-12 s.n. Siskiyou Dunsmuir Comment
  CHSC69085  Amelanchier utahensis Vernon Oswald; Lowell Ahart 1997-7-28 8793 Siskiyou Southeast of Medicine Lake at Paynes Springs. Paynes Creek Canyon north of the campground. 1981 Comment
  HSC64003  Amsinckia intermedia J. P. Smith 1976-5-4 8661 Siskiyou E boundary of Klamath National Forest along Hwy. 96, above Klamath River 610 Comment
  OBI55448  Anaphalis margaritacea David J. Keil 1992-7-20 23506 Siskiyou Klamath Natl forest, SW of Fort Jones. Along forest rd 46N64, 4.8 mi W of Scott river Rd 800 Comment
  UC165395  Ancistrocarphus filagineus Geo. D. Butler 1909-5-23 718 Siskiyou trodden plains near Yreka Comment
  CAS-BOT-BC64605  Androsace elongata subsp. acuta Louis C. Wheeler 1935-3-16 3372 Siskiyou Klamathon, Klamath River. 701 Comment
  JEPS80570  Anemone deltoidea Gilbert Muth 1965-8-3 160 Siskiyou pothole in marble, Marble Mt Wilderness Area Marble Mt Wilderness Area 1792 Comment
  SJSU6489  Anemone deltoidea R. W. Trivelpiece 1972-6-14 105 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp 1280 Comment
  POM365633  Anemone deltoidea M. B. Dunkle 1944-6-25 9000 Siskiyou Siskiyou National Forest. 1677 Comment
  HSC58914  Anemone drummondii Marvin Butler 1971-7-7 56 Siskiyou Near El Capitan, close to the town of Cave Junction 1585 Comment
  HSC55712  Anemone occidentalis G. L. Clifton, Griswold 1979-7-26 10123 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  UC618888  Anemone occidentalis W. Bridge Cooke 1938-7-21 11601 Siskiyou s.w. slopes Red Butte; Mt. Shasta, Red Butte Comment
  JEPS60509  Anemone occidentalis W. L. Jepson 1907-7-6 2852 Siskiyou rocky ridge near Cudahay Valley; Marble Mt. region Comment
  JEPS109874  Anemone oregana var. oregana Dean W. Taylor 2005-7-12 19385 Siskiyou Antelope Creek; along unnamed tributary that drains from Rainbow Mountain, just upstream from the crossing of Forest Road 42N16 1697 Comment
  JEPS22050  Angelica arguta Rimo Bacigalupi with Reino and Aloha Alava 1958-9-1 6798 Siskiyou 6.2 mi above junction with road to Gumboot Lake (sw of Mount Shasta town (formerly Sisson), headwaters Sacramento River, on road to Castle Lake, drainage of Scott Camp Creek) 1432 Comment
  UC985973  Angelica arguta T. S. Brandegee July 1887 Siskiyou Mount Shasta Comment
  JEPS19763  Angelica tomentosa Rimo Bacigalupi with S. Galen Smith 1957-6-26 5941 Siskiyou about 11 mi sw of town of Mount Shasta (between White Ridge and Scott Camp Ridge, along road to Gumboot Lake, in Canyon of South Fork Sacramento River); South Fork Sacramento River 1219 Comment
  UCD127193  Angelica tomentosa J. M. Tucker; L. K. Mann 1963-7-4 3697 Siskiyou vicinity of U.S. Forest Service Public Camp, just east of Finley Camp, road from Etna to Sawyer's Bar. Comment
  RSA296046  Angelica tomentosa var. tomentosa J. M. DiTomaso 1980-8-5 1854 Siskiyou Baldy Mountain Lookout, 6 miles west of Happy Camp, 200 meters north of lookout in moist serpentine soil near spring 1707 Comment
  SEINET2030056 Image available Anisocoma acaulis C. L. Hitchcock 1940-3-23 5834 Siskiyou Red Rock Canyon Comment
  CAS-BOT-BC59286  Antennaria argentea Geo. D. Butler 1909-5-31 756 Siskiyou Humbug Creek Comment
  HSC67542  Antennaria argentea J. P. Smith, J. O. Sawyer 1972-6-30 5640 Siskiyou Junction of French Creek and Sugar Creek Rd., 1/2 mi. W of Parrott Mill Rd. 1250 Comment
  UC165287  Antennaria argentea Geo. D. Butler 1908-6-29 334 Siskiyou near Oro Fino Comment
  CAS-BOT-BC58717  Antennaria geyeri A. A. Heller 1916-7-21 12482 Siskiyou Near Upton 1097 Comment
  SEINET10938028  Antennaria geyeri Mary Susan Taylor 1980-8-18 Taylor 3263 Siskiyou T43N R1E sw sec 8, Medicine Lake quad. Shasta-Trinity Natl Forest, Little Mount Hoffman, W side, between road and look out. With J. Prouty & E. Heinz. 2225 Comment
  HSC716  Antennaria media William J. Ferlatte 1967-8-20 1048 Siskiyou Trinity Alps, Caribou Basin, Sawtooth Ridge, N-facing slope 2256 Comment
  POM229877  Antennaria media L. C. Wheeler 1935-7-23 3690 Siskiyou Jaynes Canyon. Siskiyou Mts., Mt. Diablo Mer. 1951 Comment
  CAS-BOT-BC79901  Antennaria microphylla Hans Leschke 1960-8-10 1761 Siskiyou Badger Flat 1912 Comment
  CAS-BOT-BC84794  Antennaria racemosa G. L. Stebbins 1972-7-3 9006 Siskiyou Summit of Cook and Green Pass, 8 miles north of Seiad Valley 1463 Comment
  UC34179  Antennaria rosea Harley P. Chandler 1901-6-1 1656 Siskiyou Marble Mountain North Coast Ranges, Marble Mountain 2438 Comment
  CHSC259  Antennaria rosea subsp. confinis V. Holt 1943-8-10 Siskiyou Marble mountains. 1524 Comment
  SEINET515906  Antennaria rosea subsp. confinis Vernon Oswald 1997-7-28 8789 Siskiyou Southeast of Medicine Lake at Paynes Springs. 1981 Comment
  HSC58843  Apocynum androsaemifolium Marvin Butler 1971-7-27 201 Siskiyou Near Bell Echo Camp, close to the town of Cave Junction 1433 Comment
  JEPS74501  Apocynum androsaemifolium W. J. Ferlatte 1966-8-18 408 Siskiyou 3 mi. s. Big Flat; Trinity Alps 1584 Comment
  UC1096780  Apocynum androsaemifolium Barbe 1957-7-13 381 Siskiyou w. slope along path to spring w. of Big Flat Public Camp; Klamath Nat'l Forest 1524 Comment
  RSA166009  Apocynum androsaemifolium subsp. pumilum Donald Myrick 1961-6-20 292 Siskiyou On Old McCloud Road to Bear Springs just east of Mt. Shasta City. 1098 Comment
  CAS-BOT-BC397939  Aquilegia formosa Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  HSC728  Aquilegia formosa William J. Ferlatte 1966-8-17 392 Siskiyou Caribou Basin 1982 Comment
  UC375263  Aquilegia formosa Geo. D. Butler 1908-8-3 358 Siskiyou Shackleford Creek Log Lake Comment
  UCD77343  Aquilegia formosa Robert E. Preston 2001-6-23 1601 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-BC397947  Aquilegia formosa Gilbert Muth 1965-8-5 s.n. Siskiyou Stream behind Blk. Mt. Comment
  RSA211137  Aquilegia formosa var. truncata William J. Ferlatte 1966-8-17 392 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  CHSC466  Arabis V. Holt 1943-8-13 Siskiyou Marble mountains. 1828 Comment
  RSA95067B  Arabis breweri Geo. D. Butler 1910-3-6 1118 Siskiyou Shasta River Comment
  JEPS53064  Arabis glabra Geo. D. Butler 1908-8-3 123 Siskiyou Log Lake Shackelford Creek Comment
  RSA0125769  Arabis glabra S. O. Mattoon, Ken Hansen 1978-6-17 30 Siskiyou Old Hwy 99E; 5 miles S of I-5 at Siskiyou Summit. 1220 Comment
  RSA0125809  Arabis glabra Frederick W. Oettinger 1969-8-16 1405 Siskiyou Wire Grass meadow, English Lake basin (below it). Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC1034582  Arabis glabra Douglas Barbe 1955-7-4 94 Siskiyou 9 mi s Etna (at junction of Parrot Mill Rd and French Creek Rd) 944 Comment
  RSA758211  Arabis holboellii R. F. Thorne 1969-8-2 63336 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  POM266023  Arabis holboellii var. pinetorum Lincoln Constance, Reed C. Rollins 1942-5-13 2914 Siskiyou Scott River 10 miles southwest of Scott Bar. 610 Comment
  POM272646  Arabis holboellii var. retrofracta Lyman Benson 1929-3-27 1073 Siskiyou Rocky ledges on S slopes above Klamath. River. Comment
  RSA237238  Arabis holboellii var. retrofracta Frederick W. Oettinger 1969-7-10 961 Siskiyou SW of Upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  HSC62262  Arabis platysperma Al Hobart Siskiyou Youngs Valley Comment
  UC1333315  Arabis sparsiflora var. atrorubens Dorothy Parker 1949-5-8 282 Siskiyou Kidder Creek Salmon Mountains Range 914 Comment
  UC589673  Arabis subpinnatifida Douglas Horn 1938-4-17 28 Siskiyou hills e Etna 883 Comment
  HSC29176  Arabis suffrutescens Frederick W. Oettinger 1968-8-16 540 Siskiyou Marble Mtn. Wilderness Area, W side of Red Hill N of Hancock Lake 2058 Comment
  CAS-BOT-BC171026  Aralia californica Ira L. Wiggins 1955-7-22 13455 Siskiyou Gravel bar in S Fork of Salmon R, 9.5 mi. above Cecilville. 1066 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
  RSA138227  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
  SEINET2471294  Arceuthobium abietinum subsp. wiensii R. L. Mathiasen 2007-9-16 2007 -47 Siskiyou Ca. 18 km W. of Indian Creek on forest road 17N11 1340 Comment
  SEINET2471244  Arceuthobium cyanocarpum R. L. Mathiasen 2007-9-20 2007 -55 Siskiyou On road to Gumboot Lake 1950 Comment
  CAS-BOT-BC410042  Arceuthobium cyanocarpum William Bridge Cooke 1938-8-23 11576 Siskiyou N slope of Shastina in the upper end of the Shastina lava park 2438 Comment
  CAS-BOT-BC410077  Arceuthobium douglasii Louis C. Wheeler 1934-6-25 2783 Siskiyou West Fork of Cottonwood Creek, Siskiyou Mountains 1371 Comment
  CAS-BOT-BC39987  Arctostaphylos nevadensis H. P. Bracelin 1931-6-21 459 Siskiyou North side of Mt. Eddy. above Dobkins Lake. 2133 Comment
  CAS-BOT-BC40017  Arctostaphylos nevadensis Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Shackleford Trail below Bull Meadow Comment
  HSC69205  Arctostaphylos nevadensis Maralyn A. Renner 1980-9-1 2680 Siskiyou Bear Mtn. Comment
  LA42206  Arctostaphylos nevadensis H. P. Bracelin; 1931-6-21 459 Siskiyou N side of Mt. Eddy above Dobkin's Lake, near Mt. Shasta City 2133 Comment
  POM131673  Arctostaphylos nevadensis E. B. Copeland 1903-7-14 3520 Siskiyou Klamathon. Comment
  CAS-BOT-BC46440  Arctostaphylos patula C. Hart Merriam 1907-9-26 s.n. Siskiyou Klamath Canyon. Between Keno and Shovel Cr. Calif - Oregon boundary. Comment
  CAS-BOT-BC46519  Arctostaphylos patula Doris K. Kildale 1929-7-20 8612 Siskiyou SE. of Preston Peak. 1981 Comment
  CAS-BOT-BC46521  Arctostaphylos patula Roger Raiche; Kurt Zadnik 1982-10-12 20820 Siskiyou On road to Mt. Eddy. 1524 Comment
  HSC69157  Arctostaphylos patula Maralyn A. Renner 1980-8-7 2394 Siskiyou Klamath National Forest, NW flank of Preston Peak, near summit 2180 Comment
  POM77503  Arctostaphylos patula Geo D. Butler 1909-3-7 586 Siskiyou Hills near Yreka. Comment
  RSA105355  Arctostaphylos patula G. D. Barbe 1955-7-6 137 Siskiyou Along northeast shore of Taylor Lake, Salmon Mtns. 1951 Comment
  UC1483421  Arctostaphylos patula Maralyn A. Renner 1980-7-23 1929 Siskiyou w side Upper Devil's Peak; Klamath National Forest, Seiad Valley Quad., Pacific Crest T 1767 Comment
  UC571216  Arctostaphylos patula Dorothy Tebbe 1929-7-6 27 Siskiyou near Etna Mills; Salmon Summit 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
  SEINET5460632 Image available Arctostaphylos patula Ross C. Clark, Bob Harvey; Chris Harvey 23912 Siskiyou Town of Mt. Shasta Comment
  SEINET5730645 Image available Arctostaphylos patula J. Maze 1971-1 728 Siskiyou Near Shasta City Airport; Shasta Comment
  HSC67138  Arctostaphylos viscida J. P. Smith 1973-5-5 6482 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA629723  Arctostaphylos viscida subsp. viscida L. C. Wheeler 1958-8-19 7401 Siskiyou Seiad Creek Mine. Comment
  UC718362  Arctostaphylos viscida subsp. viscida Carl B. Wolf 1934-7-4 5925 Siskiyou 3 mi below Tee Bar Creek; Klamath River 213 Comment
  RSA264950  Arenaria congesta Gilbert Muth 1975-7-28 9902 Siskiyou Near Cook and Green Pass, near Seiad Valley 1524 Comment
  RSA47778  Arenaria serpyllifolia Roxana S. Ferris, Laura Lorraine 1948-6-12 11857 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1418 Comment
  CAS-BOT-BC467186  Arenaria serpyllifolia var. serpyllifolia L. B. Kildale 1930-6-1 9737 Siskiyou Salmon River between Oak Bottom and Somes Bar Comment
  HSC22129  Arnica cordifolia J. O. Sawyer 1969-7-9 1236 Siskiyou Steep hillside above S Sugar Lake 2134 Comment
  RSA237480  Arnica cordifolia Frederick W. Oettinger 1969-7-16 1038 Siskiyou SSW of Abbott's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  RSA237485  Arnica cordifolia Frederick W. Oettinger 1968-9-1 647 Siskiyou SSW of Abbotts Lake, adjacent to Red Fir Forest. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  RSA237583  Arnica cordifolia Frederick W. Oettinger 1969-8-1 1122 Siskiyou SW just above Wiregrass Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1707 Comment
  CDA10119  Arnica cordifolia var. pumila G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2608 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  RSA758221  Arnica discoidea R. F. Thorne 1969-8-2 63326 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  CAS-BOT-BC82660  Arnica latifolia H. A. Thomas; J. H. Thomas 1954-7-24 4490 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 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
  POM259290  Arnica latifolia J. T. Howell 1939-8-2 14910 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  HSC96833  Arnica latifolia S. Lyon, J. McIntire 2006-6-25 26 Siskiyou Burns Ranch; On F.S. Rd. 39N41, 0.2 miles southwest of intersection with Rd. 39N27 1341 Comment
  HSC28398  Arnica mollis Frederick W. Oettinger 1968-8-24 625 Siskiyou Marble Mountain Wilderness Area, below Tom's Lower Pond 1860 Comment
  UCSB27386  Arnica mollis Wilken, Dieter 1969-7-26 Siskiyou Panther Meadows, near summit of Mt. Shasta Ski Bowl Road, south slope of Mt. Shasta 2895 Comment
  CAS-BOT-BC90058  Arnica nevadensis Ira L. Wiggins 1955-7-27 13562 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA238813  Arnica nevadensis Frederick W. Oettinger 1969-7-28 1082 Siskiyou NW above upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  UC1408811  Arnica parryi Frederick W. Oettinger 1969-7-28 1087 Siskiyou Tom's Upper Pond (above) Marble Mountain Wilderness Area, English Peak, The Salmon Mo 2026 Comment
  CAS-BOT-BC90087  Arnica viscosa Wm. Bridge Cooke 1938-8-18 11501 Siskiyou Horse Camp Slopes, slopes above the Shasta Fir forest 2514 Comment
  HSC62123  Arnica viscosa Al Hobart 1960-7-25 Siskiyou Preston Peak Comment
  SEINET5712658  Artemisia campestris subsp. borealis J. M. Tucker, L. K. Mann; Sandra L. Holloway 1963-1 3750 Siskiyou Southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area.; Marble Mountain Wild. Area 2134 Comment
  UC618867  Artemisia douglasiana W. Bridge Cooke 1938-8-19 11509 Siskiyou along overflow stream from Mount Shasta City water reservoir; Mount Shasta region 1219 Comment
  CAS-BOT-BC90476  Artemisia douglasiana Ira L. Wiggins 1955-7-26 13511 Siskiyou Banks of S Fork of Salmon R just above mouth of Blind Horse Creek 886 Comment
  SEINET6775430 Image available Artemisia dracunculus G. D. Butler 1910-9-16 1878 Siskiyou Yreka flat Comment
  CAS-BOT-BC90741  Artemisia ludoviciana subsp. incompta Gilbert Muth 1965-8-18 s.n. Siskiyou [Nort] North side of Black Mountain Comment
  UC1043534  Aruncus dioicus var. pubescens P. C. Everett and E. K. Balls 1954-10-13 20280 Siskiyou road to Kangaroo Mt. (6.5 mi ne of Hwy 96, Seiad Creek); Seiad Creek 701 Comment
  UC12116  Aruncus dioicus var. pubescens unknown Sep 1862 1446 Siskiyou Comment
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Jan 20 2011
  RSA237599  Aruncus sylvester Frederick W. Oettinger 1969-9-4 1670 Siskiyou Cliffs south of of Tobacco Lake basin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA237600  Aruncus sylvester Frederick W. Oettinger, Robert F. Thorne 1969-8-9 1327 Siskiyou Near Five miles Point, Stock gate slope near Herr Creek. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1098 Comment
  SEINET10913619  Asclepias speciosa K. Bridwell 1978-7-5 Bridwell 164 Siskiyou Along county dirt road between the Tablelands and Mahogany Ridge, ca 18 mi S of Klamath Falls, Ore., and 3 mi NE of Dorris, Calif. 1244 Comment
  CAS-BOT-BC69557  Aspidotis densa E. K. Balls 1949-7-8 13902 Siskiyou Trail to Carmen Lake from Scott Mountain Camp, Scott Mt. 1706 Comment
  POM210962  Aspidotis densa L. C. Wheeler 1934-8-13 3112 Siskiyou East Fork Horse Creek, Siskiyou Mountains 1982 Comment
  CAS-BOT-BC69594  Aspidotis densa Donald Branscomb 1958-7-1 s.n. Siskiyou Castle Lake. 1706 Comment
  HSC34465  Aspidotis densa J. D. Ackerman, A. M. Montalvo 1974-8-18 430 Siskiyou Ridge above chromium mine near Cyclone Gap and Copper Mtn. in the Siskiyou Mtns. 1829 Comment
  RSA238783  Aster alpigenus Frederick W. Oettinger, R. F. Thorne 1969-8-8 1293 Siskiyou Sundew Bog due E of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA210867  Aster frondosus R. F. Thorne, J. Henrickson, C. W. Tilforth 1969-9-3 39032 Siskiyou Hwy 161 at N edge of White Lake, 13.5 miles E of junction of Hwy 97 and 161. 1280 Comment
  RSA14502  Aster intermedius Elmer I. Applegate 1923-8-21 3918 Siskiyou Willow Creek, south of Lower Klamath Marsh. Comment
  CAS-BOT-BC290611  Asteraceae Peter Rubtzoff 1978-6-26 9219 Siskiyou South margin of Grass Lake near Hwy. 97. Comment
  UC82618  Astragalus accidens var. hendersonii Copeland 1903-7-6 3512 Siskiyou Hornbrook Comment
  CAS-BOT-BC178813  Astragalus californicus L. E. Smith 1914-5-14 697 Siskiyou Yreka Comment
  RSA109717  Astragalus californicus H. D. Ripley, R. C. Barneby, F. C. Ripley Jr. 1948-7-5 9633 Siskiyou 2 miles SW of Yreka. Alt. 2800 ft. Comment
  CAS-BOT-BC177861  Astragalus curvicarpus var. curvicarpus R. C. Barneby 1954-5-15 11504 Siskiyou 2 1/2 miles n. of Gazelle 838 Comment
  UC1731130  Astragalus inversus Dean Wm. Taylor with Glenn L. Clifton, Rexford E. Palmer, Roy Buck 1987-6-24 9049 Siskiyou vicinity of Mud Well, McCloud River headwaters 1402 Comment
  CAS-BOT-BC187306  Astragalus lentiginosus var. lentiginosus A. A. Heller 1905-6-19 8062 Siskiyou Grenada Station Comment
  POM16071  Astragalus purshii var. tinctus E. B. Copeland 1903-7-6 7964 Siskiyou Hornbrook. Comment
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Jan 23 2011
  POM45520  Astragalus purshii var. tinctus Geo. D. Butler 1909-4-14 631 Siskiyou Humbug Creek Comment
  HSC71340  Astragalus whitneyi var. siskiyouensis J. P. Smith 1974-5-26 7384 Siskiyou Along FS Rd. 47N03 1524 Comment
  CAS-BOT-BC198704  Astragalus whitneyi var. siskiyouensis Dorothy Parker 1946-7-20 s.n. Siskiyou Rock Fence Lake 1524 Comment
  HSC75134  Astragalus whitneyi var. siskiyouensis J. P. Smith, Thomas W. Nelson 1979-6-16 10135 Siskiyou Klamath National Forest, along Hwy. 3, 3.1 mi. from the Scott Mtn. summit. 1280 Comment
  CAS-BOT-BC105091  Asyneuma prenanthoides R. C. Wenk 2008-8-31 994 Siskiyou South Fork of Salmon River, trail from Big Flat Meadow to Yellow Rose Mine 1737 Comment
  UC150686  Athyrium filix-femina var. cyclosorum Copeland 1903-9-5 3848 Siskiyou Mt. Eddy Comment
  UC220844  Athyrium filix-femina var. cyclosorum H. E. Brown Jul 15 1897-Jul 31 1897 544 Siskiyou s side Mt Shasta 1524 Comment
  SEINET516139  Atriplex rosea Vernon H. Oswald 1998-9-16 9652 Siskiyou Return leg of the Tour Route at Lower Klamath NWR ca. 2 mi south of Hwy. 161. 1244 Comment
  CDA23339  Atriplex triangularis T. C. Fuller 1963-8-27 11163 Siskiyou North shore of Klamath Lake, south side of Dorris-Tulelake Road, 12.4 miles west of Hatfield. 0 Comment
  HSC9030  Avena fatua D. M. Thomson 1965-7-17 152 Siskiyou Lava Beds National Monument, N boundary Comment
  UC722207  Balsamorhiza deltoidea C. L. Hitchcock and J. S. Martin 1939-7-6 5211 Siskiyou Takilma-Happy Camp Road Siskiyou Mts. 1676 Comment
  RSA722496  Balsamorhiza hookeri var. lagocephala Richard Halse 1989-5-6 3818 Siskiyou Along Old Hwy. 99, 3.2 to 6.2 miles S of Gazelle or 1.5 miles N of its junction with Old Stage Road. 912 Comment
  JEPS73744  Beckmannia syzigachne George D. Butler 1908-6-25 484 Siskiyou Butler's Ranch near Yreka Comment
  HSC43331  Berberis aquifolium var. aquifolium Maralyn O'Meara 1974-5-27 472 Siskiyou Along FS Rd. 47N03 1646 Comment
  HSC41073  Berberis aquifolium var. repens J. O. Sawyer 1970-3-4 2076 Siskiyou N of Idlewild Campground. 762 Comment
  HSC65093  Berberis aquifolium var. repens J. P. Smith 1973-5-5 6436 Siskiyou Along Cook and Green Pass Rd. Comment
  CAS-BOT-BC75718  Berberis nervosa J. H. Thomas 1954-5-13 4133 Siskiyou Salmon Mountains. Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. 1066 Comment
  JEPS47782  Berberis nervosa W. L. Jepson 1894-1 Siskiyou Shasta Springs Comment
  CAS-BOT-BC75916  Berberis piperiana Doris K. Kildale 1928-7-25 5915 Siskiyou At Humboldt-Siskiyou county line near Somes Bar. Comment
  CAS-BOT-BC76001  Berberis pumila Wm. F. Herrin 1920-5-1 s.n. Siskiyou Shasta Springs. Comment
  CAS-BOT-BC169480  Betula occidentalis Roxana S. Ferris; Laura Lorraine 1948-6-12 11823 Siskiyou East Fork of Scott River drainage, Parker Ranch, Plowman's [Noyes] Valley 1203 Comment
  CAS-BOT-BC169488  Betula occidentalis W. R. Dudley 1901-8-26 s.n. Siskiyou Salmon Mountains Comment
  UC166584  Bidens cernua Geo. D. Butler 1908-9-20 501 Siskiyou near Shasta River (e of Yreka) Comment
  CAS-BOT-BC102064  Bidens frondosa Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Roger's Creek, Somes Bar Comment
  CAS-BOT-BC413075  Bistorta bistortoides D. E. Breedlove 1962-6-11 3370 Siskiyou Along State Hwy. 89, 17.6 miles east of McCloud; Cascade Mountains 1219 Comment
  HSC82282  Blepharipappus scaber Thomas W. Nelson, Jane P. Nelson 1979-6-15 4801 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  UC538067  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek 914 Comment
  UC165320  Boechera breweri Geo. D. Butler 1910-5-21 1379 Siskiyou Klamath River Comment
  CAS-BOT-BC16239  Boechera divaricarpa John Thomas Howell 1937-7-21 13205 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC540349  Boechera paupercula Dana York 2012-7-20 3118 Siskiyou Siskiyou Mountains: Klamath National Forest, Red Buttes Wilderness, 430 m SSW of Red Butte along a ridge 1950 Comment
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Aug 6 2017
  CAS-BOT-BC14272  Boechera pinetorum John Thomas Howell 1937-7-29 13675 Siskiyou North slope of Scott Mountains. 1676 Comment
  CAS-BOT-BC14413  Boechera platysperma Alice Eastwood 2076 Siskiyou Mount Shasta. Comment
  CAS-BOT-BC25425  Boechera retrofracta Ira L. Wiggins; Dorothy B. Wiggins 1961-6-15 16493 Siskiyou At quarry on Glass Mountain. Comment
  UC1540024  Boechera sparsiflora M. Mitchell 1936-5-14 20 Siskiyou 1/8 mi s Canby Cross; Lava Beds National Monument 1249 Comment
  CAS-BOT-BC410930  Boechera sparsiflora L. E. Smith 1913-4-25 104 Siskiyou Hornbrook Comment
  CAS-BOT-BC25872  Boechera subpinnatifida Lincoln Constance; Reed Clark Rollins 1942-5-14 2931 Siskiyou Klamath-Siskiyou Region. Shasta River 6 miles north of Yreka. 762 Comment
  CAS-BOT-BC25922  Boechera suffrutescens Elmer I. Applegate 1923-8-17 3843 Siskiyou Medicine Lake. Comment
  POM46111  Boisduvalia densiflora var. densiflora Geo. D. Butler 1910-6-29 1614 Siskiyou Yreka Creek Comment
  HSC72872  Boschniakia strobilacea M. A. Baker 1980-6-20 2206 Siskiyou Near Bald Mtn. 1036 Comment
  UC185184  Botrychium multifidum Geo. D. Butler 1910-7-13 1777 Siskiyou Shackleford Creek 1219 Comment
  HSC811  Boykinia major William J. Ferlatte 1967-7-26 738 Siskiyou Caribou Basin 1982 Comment
  HSC63260  Boykinia major M. A. Baker 1979-7-30 1079 Siskiyou Draw W of trail to Rainy Lake Comment
  RSA105405  Boykinia major G. D. Barbe 1955-7-4 093 Siskiyou 11 miles S of Etna on the N Fork of French Creek. About 1000 ft from Parrot Mill Rd. 976 Comment
  RSA84355  Boykinia major F. W. Peirson 1926-7-11 7022 Siskiyou About half way up grade W of Etna or Etna Mills. Comment
  CDA25391  Boykinia major var. major T. C. Fuller, Don Shaw 1974-9-24 20022 Siskiyou Siskiyou Mountains.; Reeves Ranch Springs, east of White Mountain. 0 Comment
  UC637046  Brassica rapa Annetta Carter 1934-8-13 710 Siskiyou Happy Camp to Waldo (Oregon) Road, Klamath National Forest, watershed of West Branch of Indian Creek West Branch of Indian Creek; Klamath National Forest 1463 Comment
  SJSU6077  Brickellia grandiflora R. W. Trivelpiece 1971-8-11 67 Siskiyou near Grass Lake, 4.5 mi N of Sheep Rock, eastern Siskiyou County 1905 Comment
  UC1190170  Brodiaea elegans subsp. elegans Ira L. Wiggins 1955-7-25 13509 Siskiyou meadow Mountain View Ranch 960 Comment
  CAS-BOT-BC484384  Brodiaea elegans subsp. elegans Clarice Nye 1940-7-1 s.n. Siskiyou Near Copco, Green Springs Mountain, California-Oregon border Comment
  SEINET10965891  Brodiaea ida-maia David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-3 Dunn 20651 Siskiyou Vicinity of the campground on the salmon river, 8.3 miles w of cecilville. Yellow pine forest with douglas fir. Area with mostly metamorphic rocks. Area Very rocky and gravelly Comment
  CAS-BOT-BC144103  Bromus Melissa A. Berry 1957-7-4 s.n. Siskiyou High CCC Road, south of Highway 96, between Ridge and Humbug roads. 1371 Comment
  UC204769  Bromus carinatus var. carinatus Geo. D. Butler 1909-6-2 814 Siskiyou near Yreka Comment
  UC618691  Bromus carinatus var. carinatus W. Bridge Cooke 1938-6-24 11062 Siskiyou Mount Shasta, MacBride Spring MacBride Spring; Mount Shasta, MacBride Spring 1524 Comment
  CAS-BOT-BC148792  Bromus carinatus var. marginatus Elmer I. Applegate 1935-6-10 9480 Siskiyou South slope of Caldwell Butte. Lava Beds National Monument. Comment
  CAS-BOT-BC155981  Bromus diandrus Dorothy Parker 1949-6-16 91 Siskiyou Along the road at the edge of a field entrance to McConahue Gulch. Scott Valley. 853 Comment
  UC204800  Bromus diandrus Geo. D. Butler 1908-6-25 480 Siskiyou near Yreka Comment
  UC70747  Bromus laevipes T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  POM115034  Bromus marginatus Geo D. Butler 1910-7-3 1622 Siskiyou Goose nest foothills 1220 Comment
  HSC103021  Bromus orcuttianus J. P. Smith 2014-6-6 13878 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  UC144490  Bromus orcuttianus A. A. Heller 1905-6-13 8026 Siskiyou near Shasta Springs Comment
  HSC103037  Bromus tectorum J. P. Smith 2014-6-7 13895 Siskiyou Along State Route 3 at its junction with the East Fork of the Scott River 994 Comment
  HSC26633  Bromus tectorum J. P. Smith, Steve Selva 1970-6-16 4013 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  UC1483562  Bromus tectorum Maralyn A. Renner 1980-6-22 90 Siskiyou n of Little Shasta River (Klamath National Forest); Klamath National Forest 1371 Comment
  UCD59865  Bromus tectorum Sandra L. Holloway 1963-4-11 33 Siskiyou Umbrella Hill,' 1 mile S of Oberlin Road and 5 miles SE of Yreka. 762 Comment
  CAS-BOT-BC185590  Bromus tectorum Geo. D. Butler 1909-8-16 860 Siskiyou Along creek near Yreka. Comment
  HSC68536  Bromus vulgaris Maralyn A. Renner 1980-6-25 1100 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  CAS-BOT-BC185260  Calamagrostis koelerioides Doris K. Kildale 1929-8-24 9009 Siskiyou Preston Peak. Rattlesnake Meadow. 1676 Comment
  RSA239128  Calamagrostis koelerioides Frederick W. Oettinger 1969-9-3 683 Siskiyou West of Horse Range Lake, northwest of Horse's Hole Pond. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 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
  UCD57318  Calamagrostis koelerioides A. H. Murphy 1956-8-16 56 U Siskiyou Klamath Natioal Forest, east end Big Marshy Meadow. 1828 Comment
  SEINET7584065 Image available Calliscirpus criniger Frederick W. Oettinger 1968-8-2 350 Siskiyou Salmon Mountains, vicinity of English Peak Marble Moutain Wilderness Area, near Diamond Lake. 2073 Comment
  HSC65345  Callitropsis nootkatensis Rich White 1978-7-18 257 Siskiyou Steep headwall at shoulder of NW ridge of Preston Peak 1905 Comment
  CAS-BOT-BC85743  Calocedrus decurrens Alice Eastwood 1928-8-1 1939 Siskiyou Cantara Comment
  CAS-BOT-BC487852  Calochortus coeruleus Ira L. Wiggins 1950-5-28 12383 Siskiyou Serpentine ridge just above Grouse Lake (headwaters of Grouse Creek) 1737 Comment
  SBBG16027  Calochortus elegans D. Myrick 1961-6-20 283 Siskiyou Bear Springs, Mt Shasta 1676 Comment
  HSC582  Calochortus nudus William J. Ferlatte 1966-8-3 272 Siskiyou Josephine Lake basin 1677 Comment
  RSA68946  Calochortus nudus A. E. Culbertson 1943-7-1 12 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles of its headwaters to the west 1657 Comment
  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-BC132630  Calochortus uniflorus Wm. Bridge Cooke 1938-7-15 11219 Siskiyou In lower Wagon Camp Comment
  UC609324  Caltha biflora Eleanor Burks Hart 1938-8-21 908 Siskiyou Upper Wright Lake. Comment
  CAS-BOT-BC181508  Caltha leptosepala A. A. Heller 1915-7-15 12086 Siskiyou Mt. Eddy 2072 Comment
  RSA47126  Calycadenia ciliosa Doris K. Kildale 1925-9-6 1288 Siskiyou Somes Bar Comment
  UC89046  Calycadenia fremontii unknown 1890-10-1 Siskiyou near Sissons Comment
  UC1971694  Calycadenia fremontii 1978-8-21 2159 Siskiyou 0.4 mi E of Somesbar on Etna-Somesbar Road (=GDC 783) 194 Comment
  CAS-BOT-BC272752  Calycadenia truncata subsp. truncata Ella Dales Cantelow 1938-10-23 2378 Siskiyou 16 mi. n.w. of Yreka, Klamath River Hy. #96 Comment
  HSC2414  Calyptridium monospermum William J. Ferlatte 1966-8-5 337 Siskiyou Caribou Mtn. 2470 Comment
  HSC64931  Calyptridium monospermum D. L. Goforth 1979-7-7 233 Siskiyou Klamath National Forest, near Deer Camp 1860 Comment
  CDA39861  Calystegia malacophylla D. H. Shaw & J. R. Keck 1977-7-19 s.n. Siskiyou Coffee Creek near Big Flat Campground, Klamath National Forest. 0 Comment
  CAS-BOT-BC221253  Calystegia malacophylla subsp. malacophylla A. A. Heller 1905-6-5 7988 Siskiyou Shasta Springs Comment
  UC725675  Calystegia malacophylla subsp. malacophylla A. A. Heller 1916-7-20 12471 Siskiyou e side Mt. Eddy (near Wagon Creek Falls); e side Mt. Eddy, nr Wagon Creek Falls 1524 Comment
  HSC99980  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 2005-7-16 9380 Siskiyou Along F. S. Rd. 42N16. 1337 Comment
  UC640525  Camassia quamash subsp. breviflora Frank W. Gould 1940-5-15 1224 Siskiyou Goosenest Mountain, Bull Meadows Bull Meadows; Goosenest Mountain, Bull Meadows 152 Comment
  HSC64821  Camelina microcarpa J. P. Smith 1976-5-4 8662 Siskiyou E boundary of Klamath National Forest along Hwy. 96, above Klamath River 610 Comment
  CAS-BOT-BC160904  Camissonia tanacetifolia subsp. tanacetifolia Roxana S. Ferris; Laura Lorraine 1941-8-11 10495 Siskiyou Grass Lake Station, on U. S. Highway 97 1554 Comment
  SEINET10463162  Campanula prenanthoides Samuel B. Parish 1902-9-13 Parish s.n. Siskiyou Dunsmuir 610 Comment
  SEINET10905892  Campanula prenanthoides Condit 1911-7-3 CONDIT s.n. Siskiyou SHASTA RETREAT, COMMON ALONG RR & ON MTN SIDES Comment
  SEINET10972072  Campanula scabrella Muth 1978-8-1 MUTH 6957 Siskiyou Near Cory Peak, on the China Mountain quadrangle, close to the town of Callahan 2195 Comment
  UC890573  Campanula scabrella Alice Eastwood 1912-8-30 2010 Siskiyou Mount Eddy Comment
  HSC48283  Campanula scouleri J. O. Sawyer, K. Stillman 1978-7-6 3348 Siskiyou Along Happy Camp - O'Brien Rd., above Louse Creek. Comment
  UC131860  Campanula scouleri Dr. E. B. Copeland 1903-8-17 3911 Siskiyou Mt. Eddy 1310 Comment
  UC890576  Campanula scouleri L. E. Smith 1913-7-12 480 Siskiyou Mt. Eddy Comment
  UC890603  Campanula scouleri A. A. Heller 1915-7-18 12106 Siskiyou Metcalf's Ranch Mt. Eddy (ne slope of mountain) 1188 Comment
  HSC31121  Campanula scouleri J. O. Sawyer 1971-8-19 2452 Siskiyou On trail to Marble Valley near Lovers Camp. 1311 Comment
  SEINET10463722  Campanula scouleri Wieslander 1929-1 WIESLANDER 121 Siskiyou Kosk Creek near Shotgun Creek; Bartle. T37N R1W Comment
  HSC66249  Campanula wilkinsiana Maralyn A. Renner 1980-8-21 2538 Siskiyou Kidd Creek 2043 Comment
  JEPS57208  Campanula wilkinsiana L. R. Heckard 1967-8-14 1731 Siskiyou canyon above Horse Camp (sw flank of Mt. Shasta); Mt. Shasta 2560 Comment
  UC1258461  Campanula wilkinsiana Maralyn A. Renner 1980-8-21 2538 Siskiyou Kidd Creek Coffee Creek Quad. 2042 Comment
  SEINET10463887  Campanula wilkinsiana Cooke 1947-8-20 COOKE 17822 Siskiyou Common in the meadow area around the water supply spring above Harse Camp, Mount Shasta 2515 Comment
  SEINET10463892  Campanula wilkinsiana Alice Eastwood 1912-9-1 Eastwood 2063 Siskiyou Mount Shasta Comment
  SEINET10872989  Campanula wilkinsiana Cooke 1938-9-17 COOKE 11698 Siskiyou Mount Shasta; Horse Camp Springs, on the Summit trail & Squaw Cr. Meadows. 2469 Comment
  UCD114132  Capsella bursa-pastoris A. A. Heller 1916-6-20 12417 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy. 1188 Comment
  CDA3667  Cardaria chalepensis E. Hale 1989-5-15 Siskiyou Bruce Street, between Fourth and Main, Yreka. 0 Comment
  CDA36793  Cardaria draba D. B. Joley 1976-6-24 5 Siskiyou Montague. 0 Comment
  CHSC99692  Carex abrupta L. P. Janeway 2008-7-24 9475 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
  HSC29660  Carex abrupta Frederick W. Oettinger, R. F. Thorne 1969-8-6 1260 Siskiyou Marble Mtn. Wilderness Area, lower pond, Tom's Lake 1951 Comment
  HSC39389  Carex amplifolia J. O. Sawyer 1969-6-11 828 Siskiyou Ridge next to C.C.C. road, near N fork of Horse Range Creek 1357 Comment
  NY25680  Carex amplifolia A. A. Heller 1905-6-5 7974 Siskiyou Between Shasta Retreat and Shasta Springs Comment
  SEINET7273505 Image available Carex amplifolia A. A. Heller 1905-6-5 7982 Siskiyou Between Shasta Retreat and Shasta Springs Comment
  HSC61818  Carex aquatilis Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  HSC76314  Carex aquatilis L. P. Janeway 1982-8-22 178 Siskiyou Near the old jeep road between Poker Flat and Kelly Lake 1555 Comment
  HSC85806  Carex aquatilis var. dives L. P. Janeway 1983-8-28 637 Siskiyou Poker Flat, middle of meadow 1529 Comment
  CAS-BOT-BC18129  Carex athrostachya Melissa A. Berry 1957-7-4 s.n. Siskiyou Carter Meadow at junction of Long Gulch and Trail Gulch on South Fork of Salmon River. 1676 Comment
  CHSC98565  Carex athrostachya Thomas W. Nelson; Jane P. Nelson 1984-7-28 7705 Siskiyou Along west edge of Gumboot Lake. 1859 Comment
  JEPS63765  Carex athrostachya B. C. Goldsmith 1916-8-6 13 a Siskiyou Sisson Comment
  UCD140137  Carex athrostachya Herbert L. Mason 1948-7-18 13610 Siskiyou Grass Lake. Comment
  CAS-BOT-BC19650  Carex brainerdii Alice Eastwood 1923-5-18 11852 Siskiyou Shasta Springs. Comment
  CAS-BOT-BC19660  Carex brainerdii John Thomas Howell 1937-7-24 13427 Siskiyou Salmon-Trinity Alps. Caribou Basin. 2286 Comment
  HSC77171  Carex brainerdii L. P. Janeway 1983-6-25 336 Siskiyou Cutbank of dirt road, 0.5 mi. N of W Branch USFS Station 671 Comment
  CHSC106472  Carex breweri Peter F. Zika 2009-8-16 24605 Siskiyou Cascade Range Highlands (CaRH). Near top of Road A10 (Everett Memorial Highway), S slope of Mt. Shasta. 2400 Comment
  SEINET10648318  Carex breweri Charles F. Baker 1903-7-16 Baker 3517 Siskiyou Mount Shasta. 3170 Comment
  RSA610959  Carex densa L. C. Wheeler 1935-5-11 3475 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  CHSC96446  Carex echinata subsp. echinata Gordon Leppig; Jennifer Kalt 1996-7-9 367 Siskiyou Klamath National Forest. Russian Wilderness, Little Duck Lake Fen. In cirque west of Little Duck Lake. UTM Zone 10 NAD 1927, 503813E, 4572466N. 2200 Comment
  HSC96592  Carex echinata subsp. echinata Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-19 488 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  CAS-BOT-BC20132  Carex feta George Dexter Butler 1909-6-13 807 Siskiyou Oro Fino. Comment
  SEINET8987782 Image available Carex hassei P. Zika, Wilson, B 2011-1 25668 Siskiyou FS Road 41NO3, 1.6 road miles from junction with Gazelle- Callahan Road, 1.5 air miles NE of Mountain House, 3.5 air miles NW of Crater Lake, Scott Mountains. Klamath Range (KR) Comment
  CAS-BOT-BC22294  Carex hassei William Bridge Cooke 1940-6-8 15116 Siskiyou Mount Shasta City. 1082 Comment
  RSA0069322  Carex inops subsp. inops Dean Wm. Taylor 2014-5-29 21481 Siskiyou Mt. Shasta; southeastern flank of the base of the mountain, Squaw Valley Creek watershed. 1664 Comment
  SEINET4292187 Image available Carex integra Unknown 2006-1 8775 Siskiyou Klamath Range. Salmon Mountains; south side of upper Carter Meadows 0.5 km west of Carter Meadows Summit. Deadman Peak 7.5' quad. Comment
  SEINET7564731 Image available Carex lenticularis var. lipocarpa Frederick W. Oettinger 1968-9-7 750 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, at water's edge, north side of Hancock Lake. 2042 Comment
  HSC76393  Carex luzulina L. P. Janeway 1982-8-15 143 Siskiyou Below Echo Lake 1646 Comment
  RSA577789  Carex luzulina var. ablata L. C. Wheeler 1935-7-26 3719 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  RSA577568  Carex mariposana L. C. Wheeler 1934-7-21 3014 Siskiyou Head of Jaynes Canyon. Siskiyou Mountains. 2043 Comment
  HSC29664  Carex mertensii Frederick W. Oettinger 1969-9-4 1650 Siskiyou Marble Mtn. Wilderness Area, dry meadow below Tobacco Lake 1890 Comment
  HSC76805  Carex microptera L. P. Janeway 1982-8-15 140 Siskiyou Above Echo Lake 1799 Comment
  JEPS63498  Carex multicaulis W. L. Jepson 1940-6-27 20043 Siskiyou e slope, Mt. Shasta Mt. Shasta 2133 Comment
  CAS-BOT-BC23425  Carex multicostata John Thomas Howell 1939-8-2 14908 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  SEINET7568504 Image available Carex multicostata L. P. Janeway 2006-7-2 8738 Siskiyou Deadman Peak 7.5' Quad. Klamath Ranges. Salmon Mountains, slope of south side of South Fork Salmon River 0.5 km west of Carter Meadows Summit. 1783 Comment
  CAS-BOT-BC119897  Carex nebrascensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11818 Siskiyou East fork of Scott River drainage, Parker Ranch, Plowman's (Noyes) Valley 1203 Comment
  UC642550  Carex nebrascensis J. W. Stacey 1939-6-23 13502 Siskiyou near Municipal Spring (above Howard); Mount Shasta Comment
  CAS-BOT-BC119679  Carex nervina William Bridge Cooke 1939-6-23 13547 Siskiyou Spring creeks formed by upper Wagon Camp springs in upper spring area. 1737 Comment
  HSC96015  Carex nigricans Juha Pykala, D. H. Norris 1987-7-7 2357 Siskiyou Mt. Shasta, Everitt Memorial Highway, Panther Meadow 2287 Comment
  CHSC69840  Carex nudata Lawrence Janeway 1982-8-14 131 Siskiyou Along n shore of Klamath R. 426 Comment
  SEINET10850492  Carex nudata David Castaner 1989-6-19 Castaner 10239 Siskiyou Along Highway 3. Between Callahan & Gazelle. Along a rocky stream. Comment
  SEINET11639679  Carex nudata Unknown 1989-6-19 10239 Siskiyou along Highway 3, between Callahan and Gazelle Comment
  JEPS117599  Carex praegracilis Lowell Ahart, John Dittes 2010-7-30 16951 Siskiyou South side of a water ditch, at the edgee of the dry upland, about 30 yards south of the Shasta River, about 80 yards west of the pipe across the Shasta River, about 200 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) s 716 Comment
  CAS-BOT-BC118776  Carex preslii John Thomas Howell 1937-7-29 13674 Siskiyou North side of Scott Mt. Comment
  CAS-BOT-BC118795  Carex preslii William Bridge Cooke 1939-7-13 13636 Siskiyou Bottom of Horse Camp Creek. 2438 Comment
  RSA211369  Carex proposita William J. Ferlatte 1967-8-21 1077 Siskiyou Sawtooth Ridge, Caribou Basin. Ridge west of Big Caribou Lake. Trinity Alps. 2134 Comment
  CAS-BOT-BC118606  Carex raynoldsii K. T. Stillman 1976-8-7 198 Siskiyou Scott Mar Quad, Marble Mountain Wilderness Area. 1828 Comment
  CHSC53540  Carex rossii L. P. Janeway 1983-8-7 521 Siskiyou Near 'Peak 5148'; +-open serpentine ridgetop near end of rd 17N32, ca 19 mi from Indian Cr Rd. 1554 Comment
  CAS-BOT-BC117908  Carex scabriuscula Peter H. Raven 1956-9-4 10382 Siskiyou Ridge S of Mt. Eddy 2286 Comment
  CHSC96000  Carex scabriuscula L. P. Janeway 2006-7-4 8789 Siskiyou Klamath Ranges. Scott Mountains; Darlingtonia fen and creeklet complex above Road 40N13 1.6 air km west of Scott Mountain Summit. 1728 Comment
  HSC91274  Carex scabriuscula Jennifer Whipple 1976-6-30 1216 Siskiyou Wagon Creek drainage near Wagon Creek 2195 Comment
  HSC96570  Carex scopulorum var. bracteosa Gordon Leppig, J. Kalt 1996-7-9 388 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  HSC96591  Carex scopulorum var. bracteosa Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-19 480 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  CAS-BOT-BC117242  Carex spectabilis Ira L. Wiggins 1955-7-27 13549 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area. 2042 Comment
  CAS-BOT-BC117236  Carex spectabilis K. T. Stillman 1976-7-23 307 Siskiyou Scott Bar Quad. Marble Mountain Wilderness Area. 2011 Comment
  HSC30658  Carex spectabilis Frederick W. Oettinger 1968-9-8 731 Siskiyou Marble Mtn. Wilderness Area, trail SE of Tom's Lake 2012 Comment
  UC196158  Carex stipata var. stipata Geo. D. Butler 1909-6-13 805 Siskiyou Oro Fino Comment
  HSC7173  Carex straminiformis J. T. Howell 1939-8-2 14908 Siskiyou Spirit Lake, Marble Mtns. 1829 Comment
  RSA739863  Carex straminiformis L. P. Janeway, B. Castro 2007-7-29 9140 Siskiyou High Cascade Range, Medicine Lake Highlands, Pumice Stone Mtn 2054 Comment
  UC142324  Carex straminiformis Wm. M. Canby in company with Profs. C. S. Sargent and John Muir 1897-9-4 313 Siskiyou Mt. Shasta Comment
  JEPS63767  Carex subbracteata Mrs. M. H. Goldsmith 1916-8-6 13 Siskiyou Sisson Comment
  CAS-BOT-BC115837  Carex subfusca Alice Eastwood; John Thomas Howell 1937-6-26 5060 Siskiyou Near Forks of Salmon Comment
  CAS-BOT-BC115849  Carex subfusca William Bridge Cooke 1938-9-17 11690 Siskiyou Mt Shasta Spring. 2438 Comment
  CHSC48066  Carex subfusca L. P. Janeway 1983-5-29 316 Siskiyou Along wet drainage ditch on N side of Scott River Rd on N side of Scott River, opposite Indian Scotty USFS campground. 762 Comment
  CHSC40129  Carex vesicaria L. P. Janeway 1982-8-15 149 Siskiyou On w side of Echo Lake. 1676 Comment
  SEINET7579992 Image available Carex vesicaria Veva Stansell 1995-10-1 3013 Siskiyou Whiskey Lake, south of Takilma, OR. 1463 Comment
  HSC91306  Cassiope mertensiana Jennifer Whipple 1976-7-1 1221 Siskiyou Wagon Creek drainage near Wagon Creek 2317 Comment
  CAS-BOT-BC59701  Cassiope mertensiana Volney Rattan 1879-1-1 s.n. Siskiyou Klamath. Comment
  HSC673  Castilleja applegatei William J. Ferlatte 1967-7-26 746 Siskiyou Caribou Basin, ridge W of Big Caribou Lake. 2134 Comment
  CAS-BOT-BC241149  Castilleja applegatei subsp. pinetorum Alice Eastwood No date on label s.n. Siskiyou Cantara Comment
  HSC72500  Castilleja applegatei subsp. pinetorum J. P. Smith, Steve Selva 1970-6-16 3995 Siskiyou 5 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1189 Comment
  JEPS32578  Castilleja applegatei subsp. pinetorum Donald Myrick 1961-6-19 267 Siskiyou near Mt. Shasta City 1066 Comment
  POM15470  Castilleja applegatei subsp. pinetorum E. B. Copeland 1903-8-14 13125 Siskiyou Sisson. Comment
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Jan 23 2011
  CAS-BOT-BC243773  Castilleja applegatei var. pinetorum H. A. Thomas; J. H. Thomas 1954-7-25 4540 Siskiyou Below Rush Creek Meadow along Rush Creek, about 8 miles E of Cecilville, Salmon - Trinity Mts. 1828 Comment
  HSC61963  Castilleja arachnoidea Al Hobart Siskiyou Preston Peak Comment
  RSA211406  Castilleja arachnoidea William J. Ferlatte 1967-8-20 1040 Siskiyou Caribou Mountain. 2470 Comment
  RSA233657  Castilleja arachnoidea Robert F. Thorne, Frederick W. Oettinger 1969-8-10 39007 Siskiyou Mt. Shasta National Forest. S slope of Mt. Shasta. 2378 Comment
  RSA666322  Castilleja arachnoidea Barbara J. Ertter 1990-7-16 9381 Siskiyou NW side of Mt Eddy ca 8 airmiles SW of Weed, ca 2 mi E of Parks Cr trailhead (= crest of Rt 17) along ridge. 2317 Comment
  UC454803  Castilleja lacera I. J. Condit 1911-7-28 Siskiyou Shasta Retreat Comment
  HSC69295  Castilleja miniata Maralyn A. Renner 1980-7-24 1998 Siskiyou Lily Pad Lake 1768 Comment
  UC1238989  Castilleja miniata Freed W. Hoffman 1950-7-14 3627 Siskiyou Baldy Mountain North Coast Ranges (w Siskiyou County) Comment
  CAS-BOT-BC253616  Castilleja miniata Edmonds 1890-7-6 s.n. Siskiyou unspecified Comment
  CAS-BOT-BC254009  Castilleja miniata Doris K. Kildale No date on label 9027 Siskiyou White meadow, near Young's Valley, Preston Peak [?hail?] Comment
  CDA33294  Castilleja miniata T. C. Fuller 1974-9-24 20044 Siskiyou Northwestern; Klamath Ranges region; Headwaters of Horse Creek, southwest slope of White Mountain, Siskiyou Mountains. 0 Comment
  RSA233698  Castilleja miniata Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38968 Siskiyou S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  JEPS94269  Castilleja pilosa Vernon H. Oswald and Lowell Ahart 1998-6-11 9206 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
  UC144528  Castilleja pilosa A. A. Heller 1905-6-20 8079 Siskiyou Gazelle Comment
  CAS-BOT-BC32645  Castilleja pinetorum var. fragilis Charles Fuller Baker 1903-8-14 s.n. (= no. 3883 of C.F. Baker's distribution) Siskiyou Sisson, N. Cal. Comment
  HSC69502  Castilleja pruinosa John S. Palmer 1980-7-24 646 Siskiyou Dillon Divide 1707 Comment
  SEINET14165199  Castilleja pruinosa G. D. Butler 1910-4-19 1148 Siskiyou Near Yreka. Comment
  UC1187076  Castilleja pruinosa David D. Keck 1940-6-13 5175 Siskiyou 9 mi s Macdoel (on U.S. Hwy 97, between Dorris and Weed) 1463 Comment
  UC163707  Castilleja pruinosa Geo. D. Butler 1908-6-29 425 Siskiyou Greenhorn Mountain Comment
  HSC72571  Castilleja pruinosa J. P. Smith 1976-5-4 8668 Siskiyou SR 263 near junction with SR 96, above Shasta River 671 Comment
  POM301760  Castilleja pruinosa Marion Ownbey, D. H. Brown 1941-6-22 2422 Siskiyou West of Craggy Mountain, northwest of Yreka Comment
  CAS-BOT-BC48652  Ceanothus cordulatus L. E. Detling 1950-6-8 6588 Siskiyou Dunsmuir 792 Comment
  CAS-BOT-BC48702  Ceanothus cordulatus A. A. Heller 1905-6-16 8051 Siskiyou Near Sisson 1219 Comment
  UC338006  Ceanothus cordulatus Lemmon 1889-6-28 Siskiyou near Mt. Eddy; Shasta region 1828 Comment
  CAS-BOT-BC126854  Ceanothus cuneatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53421 Siskiyou East side of Scott Valley, 10 miles south of Fort Jones on road to Callahan 853 Comment
  HSC36764  Ceanothus cuneatus J. P. Smith 1974-5-25 7398 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC79869  Ceanothus incanus Katharine Brandegee 1889-4 Siskiyou Boulder Creek Comment
  JEPS2518 Image available Ceanothus integerrimus Willis L. Jepson 1894-8-1 Siskiyou near Sisson; Shasta Springs Comment
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May 9 2008
  CAS-BOT-BC52116  Ceanothus prostratus Mrs. Van Fassen 1926-3-27 s.n. Siskiyou Dunsmuir Comment
  HSC98196  Ceanothus prostratus R. C. Wunner 1965-6-7 112 Siskiyou Lava Beds National Monument, Mammoth Crater 1616 Comment
  UC796434  Ceanothus prostratus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11737 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road w of Callahan 1066 Comment
  SBBG16537  Ceanothus prostratus var. prostratus D. Myrick 1961-6-20 268 Siskiyou near Mt Shasta City 1066 Comment
  CAS-BOT-BC63158  Ceanothus velutinus W. B. C. 1938-6-24 11104 Siskiyou Sisson Southern Trail. 1524 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
  RSA398981  Ceanothus velutinus Bonnie C. Templeton 1960-6-16 8544 Siskiyou Between Bartle and McCloud Comment
  SD76170  Ceanothus velutinus Helen V. Witham 1969-10-9 594 a Siskiyou lower slopes of Mt. Shasta 1500 Comment
  UC1071459  Ceanothus velutinus H. A. Jensen 1933-9-25 355 Siskiyou Spring Hill Dunsmuir Quad. 1188 Comment
  CAS-BOT-BC52849  Ceanothus velutinus var. velutinus Ira L. Wiggins 1955-7-24 13488 Siskiyou Ridge betw. upper reaches of China and Blind Horse Creek Comment
  CHSC3220  Centaurea cyanus Gerry Carrauthers 1966-5-14 165 Siskiyou 4 mi. N.W. of Callahan. Comment
  CDA20009  Centaurea jacea M. Bagley 2002-8-1 PDR P 087837 -A Siskiyou Northern California; Vicinity of Mt Shasta. 0 Comment
  CHSC114370  Centaurea solstitialis Steve Orloff 2011-9-1 Siskiyou From a property along the Klamath River. Comment
  CHSC114704  Centaurea virgata var. squarrosa D. B. Joley 1976-6-24 4 Siskiyou Hawkinsville. Comment
  SEINET10741260 Image available Centaurium namophilum var. nevadense Edward L. Greene 1876-8-12 Greene 895 Siskiyou Collected near Yreka. Comment
  RSA215611  Cerastium arvense Gilbert Muth 1969-8-6 1199 Siskiyou Boulder Peak. 2530 Comment
  CHSC86670  Cerastium dichotomum Jenny Marr 1993-7-1 53 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC384986  Cerastium dichotomum T. C. Fuller 1962-6-12 8969 Siskiyou B. M. Long prop., Little Shasta Rd., 5 mi. e. of Montague Comment
  RSA157734  Cerastium dichotomum T. C. Fuller 1962-5-18 8746 Siskiyou B. M. Long prop., Little Shasta Rd., 5 miles E of Montague. 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
  HSC2135  Cercis occidentalis C. B. Wolf 1927-8-27 1154 Siskiyou On Klamath River 1 mile above the mouth of the Salmon River. Comment
  CAS-BOT-BC147682  Cercocarpus betuloides var. betuloides L. E. Smith 1913-5-28 s.n. Siskiyou Yreka Comment
  POM140927  Cercocarpus ledifolius E. B. Copeland 1903-7-6 3562 Siskiyou Hornbrook. Comment
  RSA611268  Cercocarpus ledifolius Louis C. Wheeler 1935-7-4 3654 Siskiyou Yreka Creek. 884 Comment
  CAS-BOT-BC148519  Cercocarpus ledifolius var. ledifolius Geo. D. Butler 1910-5-4 1274 Siskiyou Near Yreka Comment
  CHSC36164  Cercocarpus ledifolius var. ledifolius K. Bridwell 1978-7-7 176 Siskiyou N slope of Sheep Mountain, ca. 10 mi e of Macdoel. 1615 Comment
  CAS-BOT-BC276754  Chaenactis douglasii var. douglasii Louis C. Wheeler 1934-6-15 2715 Siskiyou Hungry Creek, Siskiyou Mountains 1280 Comment
  HSC76723  Chaenactis douglasii var. douglasii K. T. Stillman 1976-8-7 384 Siskiyou Marble Mtn. Wilderness Area, Box Camp Mtn. 2195 Comment
  UCR52248  Chaenactis douglasii var. douglasii E. E. Stanford 1930-6-15 1592 Siskiyou Near Shasta City 1098 Comment
Read comments
Oct 11 2010
  HSC5256  Chaenactis douglasii var. douglasii D. M. Thomson 1965-6-30 120 Siskiyou California Lava Bedds National Monument; 1 mile up Cave Loop Road Comment
  SEINET7379869 Image available Chaenactis douglasii var. douglasii G. D. Butler 1910-6-17 1573 Siskiyou Humbug Mountain 1219 Comment
  CHSC83136  Chaenactis suffrutescens Donald W. Kyhos 1965-7-23 65 -278 Siskiyou 50 yards west of junction of Kidder Creek Bridge and Hwy 3 at Greenview. At edge of Kidder Creek. Comment
  JEPS125888  Chaenactis suffrutescens Dean W. Taylor 1996-6-18 15695 Siskiyou Shasta Trinity National Forest; Scott Mountains, bordering Shasta Valley, hillslopes about 4 miles S of Gazelle; about 350 m upslope from the Yreka Ditch. Comment
  SD60215  Chaenactis suffrutescens A. A. Heller 1928-6-9 14608 Siskiyou Near Castle Lake, a short distance form Castle Crags in the yellow pine belt Comment
  HSC59605  Chamaebatiaria millefolium J. P. Smith, Steve Selva 1970-8-8 4571 Siskiyou Lava Beds National Monument Comment
  UC164022  Chamaesyce maculata Geo. D. Butler 1908-7-16 444 Siskiyou Klamath Rim Comment
  UC902143  Chamaesyce maculata Joseph P. Tracy 1949-9-13 18549 Siskiyou near forks Salmon (at mouth of Butter Creek) 274 Comment
  CAS-BOT-BC165985  Chamerion angustifolium Gilbert Muth 1965-8-4 s.n. Siskiyou Marble Valley Comment
  SBBG21790  Chamerion angustifolium D. Myrick 1964-7-25 947 Siskiyou Shasta Ski Bowl Hwy 1219 Comment
  CAS-BOT-BC166089  Chamerion angustifolium subsp. circumvagum John Thomas Howell 1939-8-9 15244 Siskiyou Shackleford Creek Trail, Marble Mts. Comment
  CAS-BOT-BC166097  Chamerion angustifolium subsp. circumvagum A. A. Heller 1916-6-23 12434 Siskiyou Near Black Butte north of Sisson 1127 Comment
  HSC92069  Chamerion angustifolium subsp. circumvagum Jennifer Whipple 1977-8-5 2180 Siskiyou Wagon Creek drainage on E face of Mt. Eddy 2317 Comment
  HSC69128  Cheilanthes gracillima Maralyn A. Renner 1980-8-7 2380 Siskiyou Klamath National Forest, NW flank of Preston Peak, near summit 2180 Comment
  UC335137  Cheilanthes gracillima unknown Nov. 1891 Siskiyou near Sisson (Box Canyon) Comment
  CAS-BOT-BC68245  Cheilanthes gracillima Doris K. Kildale 1928-8-20 6592 Siskiyou Lily Pad Lake, near Hancock Lookout Comment
  JEPS85081  Chenopodium W. B. and V. G. Cooke with Ted Graves 1988-8-29 64227 Siskiyou along Andesite Rd (Shasta NF FS-11) Mount Shasta, Shasta National Forest (n side of mt) 1463 Comment
  HSC19316  Chimaphila menziesii J. O. Sawyer 1968-9-28 740 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  CAS-BOT-BC452272  Chimaphila umbellata L. E. Smith 1913-7-4 455 Siskiyou North fork, Castle Creek Comment
  SDSU9887  Chimaphila umbellata D. F. Howe 1962-8-4 3386 Siskiyou Baldy Mt., Siskiyou Co. 1524 Comment
  UC1733973  Chimaphila umbellata Kay H. Beach and F. Gould 1940-5-15 Siskiyou Meadows and Goosenest Mountain 1828 Comment
  UCR21087  Chrysanthemum leucanthemum T. W. Fisher, Earl R. Oatman, Robert Orth 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  UC637075  Chrysolepis chrysophylla var. chrysophylla Edward Lee 1934-8-13 1062 Siskiyou Happy Camp to Waldo (Oregon) road Klamath National Forest, West Branch of Indian Creek (watershed of West Branch of Indian Creek) 1219 Comment
  HSC67795  Chrysolepis sempervirens J. O. Sawyer, J. Cole 1980-7-21 3897 Siskiyou Near Haight Mtn. along USFS Rd. running S-SW 1939 Comment
  UC1333331  Chrysolepis sempervirens Dorothy Parker 1949-8-12 365 Siskiyou near Duck Lake Creek (Salmon Mountain); Siskiyou Mountains, Salmon Mountain 1524 Comment
  UC1733724  Chrysolepis sempervirens Kay H. Beach, Frank Gould 1940-5-15 634 Siskiyou Meadows and Goosenest Mtn 1828 Comment
  UCD78129  Chrysolepis sempervirens Robert E. Preston 2001-6-23 1565 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, at Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  CAS-BOT-BC140656  Chrysothamnus humilis Elmer I. Applegate 1935-8-3 10019 Siskiyou Crater rim of Caldwell Butte, Lava Beds National Monument Comment
  OBI49190  Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose 1941-8-28 41427 Siskiyou Dorris 1292 Comment
  UC643320  Cicuta maculata var. angustifolia W. Bridge Cooke 1940-7-12 15314 Siskiyou near Mount Shasta City (in the Box Canyon of the Sacramento River); Sacramento River, Box Canyon 914 Comment
  HSC19053  Cinna latifolia J. O. Sawyer 1969-8-4 1861 Siskiyou Slope SW of Sugar Lake 2195 Comment
  HSC96870  Cinna latifolia Gordon Leppig 1998-8-13 998 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, in cirque W of Little Duck Lake 2200 Comment
  UC637107  Circaea alpina subsp. pacifica Annetta Carter 1934-8-13 706 Siskiyou Happy Camp (CA) to Waldo (Oregon) rd. (W. Branch Indian Creek); Klamath Nat'l Forest, W. Branch Indian Creek watershed 1463 Comment
  CAS-BOT-BC285348  Cirsium andersonii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  CAS-BOT-BC105781  Cirsium ciliolatum T. C. Fuller; D. M. Shaw 1977-8-30 20220 Siskiyou South side of Willow Creek road, west slope of Willow Creek Mtn., 21 km. northeast of Montague 1370 Comment
  CDA20747  Cirsium cymosum M. Wetherwax 2002-5-25 s.n. Siskiyou Near Gazelle, northwest of Weed. Comment
  CAS-BOT-BC278038  Cirsium cymosum John Thomas Howell 1952-6-15 28358 Siskiyou Yreka Comment
  CDA1180  Cirsium cymosum Don Shaw 1974-8-2 s.n. Siskiyou Dorris-Brownell Rd., SE of Dorris. 0 Comment
  CDA39081  Cirsium cymosum Jodi Aceves 2013-5-23 PDR# 470 P06027599 Siskiyou Near Hornbrook, on upland banks of the Klamath River near Klamath River County Estates and R-Ranch Campground. 0 Comment
  JEPS105061  Cirsium douglasii var. breweri Dean W. Taylor 1996-7-11 15782 Siskiyou Scott Mountains; West Fork Parks Creek (about 15 air miles west of Weed & 1 air mile west of Stewart Springs); Shasta Trinity National Forests 1328 Comment
  JEPS59124  Cirsium douglasii var. breweri W. L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou meadows at Sissons Strawberry Valley, Sissons Comment
  UC454287  Cirsium douglasii var. breweri I. J. Condit 1911-7-31 Siskiyou Shasta Springs Comment
  CAS-BOT-BC279888  Cirsium douglasii var. breweri A. A. Heller 1920-8-13 13526 Siskiyou Near Deetz Station, six miles from Sisson Comment
  CDA1273  Cirsium inamoenum T. R. Haig, F. D. Horn 1979-9-2 s.n. Siskiyou Goosenest Rd., 14 km NE of Tennant. 0 Comment
  CDA1275  Cirsium inamoenum T. C. Fuller 1979-10-3 20271 -B Siskiyou Goosenest Rd., 14 km northeast of Tennant. 0 Comment
  CAS-BOT-BC285551  Cirsium occidentale var. candidissimum Alice Eastwood 1917-9-2 6668 Siskiyou Shasta Springs Comment
  SEINET10808345  Cirsium occidentale var. candidissimum Katherine L. Morris, Melvin L. Conrad; David B. Dunn 1973-6-2 Morris 360 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy. 263. Comment
  CAS-BOT-BC286474  Cirsium scariosum A. A. Heller 1905-6-20 8077 Siskiyou Gazelle Comment
  POM33210  Cirsium scariosum Geo. D. Butler 1910-6-6 1459 Siskiyou Quartz Valley Comment
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Nov 25 2011
  RSA120873  Cirsium scariosum Milo S. Baker 1955-6-26 13086 Siskiyou Hwy 99, 4 miles S of Gazella 915 Comment
  CAS-BOT-BC286468  Cirsium scariosum John Thomas Howell 1952-6-14 28334 Siskiyou Gazelle Comment
  CAS-BOT-BC228981  Cistanthe umbellata Alice Eastwood 1921-7-28 10873 Siskiyou Medicine Lake Comment
  CAS-BOT-BC228978  Cistanthe umbellata Gilbert Muth 1965-8-3 s.n. Siskiyou Marble Valley Comment
  RSA756946  Clarkia Robert F. Thorne 1969-8-2 63337 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 1159 Comment
  RSA105440  Clarkia purpurea subsp. quadrivulnera Douglas Barbe 1955-7-1 73 Siskiyou Klamath Mountains: 1.3 miles east of Etna on the Westside Road to Callahan 854 Comment
  UC930739  Clarkia purpurea subsp. quadrivulnera Louis C. Wheeler 1935-6-27 3609 Siskiyou Greenview Scott Valley 883 Comment
  CAS-BOT-BC164973  Clarkia rhomboidea Doris K. Kildale 1929-5-26 9199 Siskiyou Salmon River at Hawkins Bar 609 Comment
  UC454552  Clarkia rhomboidea I. J. Condit 1911-7-31 Siskiyou along S.P.R.R. Shasta Springs Comment
  CAS-BOT-BC164980  Clarkia rhomboidea Julie Kierstead Nelson; Rhonda Posey 2007-6-15 2007 -017 Siskiyou North side of Mt. Shasta, south of Hwy. 97, along Forest Service Rd. 42N84; ca. 4 miles N E of town of Weed. NE of railroad trestle 1249 Comment
  RSA448345  Clarkia rhomboidea Louis C. Wheeler 1934-6-2 2611 Siskiyou Oak Knoll Ranger Station, Klamath River. Siskiyou Mtns. (Mt Diablo Mer.) 671 Comment
  SEINET10674957 Image available Claytonia bulbifera Edward L. Greene 1876-8-22 Greene 1008 Siskiyou On Scott Mountain. Comment
  CAS-BOT-BC439105  Claytonia cordifolia G. J. Muth 1969-8-12 1380 Siskiyou Second Valley Comment
  CAS-BOT-BC439141  Claytonia exigua subsp. exigua John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53412 Siskiyou Fort Jones 853 Comment
  CDA23948  Claytonia exigua subsp. exigua G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2616 Siskiyou 200 meters north of Hamilton Street on Highway 3, north edge of Fort Jones. Comment
  CAS-BOT-BC292669  Claytonia obovata Ira L. Wiggins 1950-5-28 12393 Siskiyou 0.3 miles west of Carmen Lake 1706 Comment
  HSC64294  Claytonia perfoliata subsp. intermontana J. P. Smith 1973-5-5 6405 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  CDA23964  Claytonia rubra subsp. depressa G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2603 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  CAS-BOT-BC443819  Claytonia rubra subsp. rubra A. A. Heller 1919-6-27 13277 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC443831  Claytonia rubra subsp. rubra John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53399 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  CAS-BOT-BC443822  Claytonia rubra subsp. rubra A. A. Heller 1919-6-30 13286 Siskiyou Near Durney's mill, north base of Mt. Eddy Comment
  HSC17712  Claytonia rubra subsp. rubra R. C. Wunner 1965-6-6 70 Siskiyou Lava Beds National Monument, 0.1 mi. on road to Caldwell Ice Cave. 1372 Comment
  CAS-BOT-BC443868  Claytonia sibirica Don. Reinoehl 1925-4-1 s.n. Siskiyou Dunsmuir Comment
  HSC26751  Clematis ligusticifolia J. P. Smith, J. O. Sawyer 1971-9-18 4826 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  SBBG70275  Cleome platycarpa A. A. Heller 1927-8-2 14440 Siskiyou N end of Shasta Valley, near the Klamath River Comment
  HSC577  Clintonia uniflora William J. Ferlatte 1966-6-22 85 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  HSC69574  Clintonia uniflora Maralyn A. Renner 1980-8-6 2260 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  UCSB23568  Clintonia uniflora Keefe, Joseph 1967-7-11 Siskiyou Cook and Green Pass, north of Seiad Valley 1341 Comment
  CAS-BOT-BC500965  Clintonia uniflora Edward Lee 1934-8-13 1084 Siskiyou Watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1463 Comment
  UCD139629  Clintonia uniflora J. G. Ferrell 1941-4-1 s.n. Siskiyou Near Edgewood. Comment
  UC164320  Collinsia grandiflora Geo. D. Butler 1911-4-23 1226 Siskiyou Quartz Valley; damp meadow Comment
  RSA261378  Collinsia linearis J. M. Tucker, L. K. Mann 1963-7-4 3691 Siskiyou Beside road from Etna to Sawyer's Bar, ca. 4.7 miles (by road) southwest of Etna. Comment
  HSC72572  Collinsia parviflora J. P. Smith 1976-5-5 8673 Siskiyou Road from Etna to Sawyer's Bar. 732 Comment
  SEINET13395184  Collinsia parviflora B. Byrne 1941-4-10 s.n. Siskiyou Sugar Creek. Comment
  HSC62079  Collinsia rattanii Ruby Van Deventer 18 Jun [year missing] Siskiyou Raspberry Lake, 2 mi. W of Copper Mtn. Comment
  JEPS82448  Collinsia torreyi var. wrightii Gilbert Muth 1966-7-18 416 Siskiyou above Mable Valley (meadow along Marble Gap Trail); Marble Mt Wilderness Area 1828 Comment
  UC602584  Collomia grandiflora W. Bridge Cooke 1938-8-19 11522 Siskiyou near spring creek; Mt. Shasta, Bear Springs 1524 Comment
  UC796445  Collomia heterophylla Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11780 Siskiyou small tributary of Etna Creek below Mill Creek Bridge 1066 Comment
  CHSC30234  Collomia larsenii M. S. Taylor; J. D. Prouty, E. Heinitz 1980-8-18 3264 Siskiyou W side of Little Mt. Hoffman, between road and lookout. 2225 Comment
  HSC78207  Collomia tinctoria L. P. Janeway 1983-8-6 495 Siskiyou Poker Flat. W part of lower portion of meadow. 1529 Comment
  UC1059038  Collomia tinctoria W. Bridge Cooke 1956-7-16 30306 Siskiyou along old logging road above Hotlum Station (n side of mountain); Mount Shasta Comment
  UC2013021  Collomia tinctoria Barbara Ertter 1990-7-14 9333 Siskiyou Wagon Creek on E side of Mt. Eddy, ca. 4 air miles W of Mt. Shasta City. Comment
  CAS-BOT-BC133723  Corallorhiza Doris K. Kildale 1928-7-4 5462 Siskiyou Field redacted by CAS, contact the data manager for more information Comment
  CHSC30248  Corallorhiza maculata M. S. Taylor 1980-7-8 3106 Siskiyou On nw side of Castle Lake. 1615 Comment
  HSC23624  Corallorhiza maculata J. O. Sawyer 1970-7-3 2314 Siskiyou Plot 321 1402 Comment
  HSC74929  Corallorhiza mertensiana J. P. Smith, Jennifer Whipple 1978-7-2 9976 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  HSC29150  Corallorhiza mertensiana Frederick W. Oettinger 1968-8-7 431 Siskiyou Salmon Mountains, across meadow from base camp, Hancock Lake 1951 Comment
  CHSC105581  Cordylanthus tenuis subsp. pallescens Barbara L. Wilson; Richard E. Brainerd 2010-8-9 16280 Siskiyou Road to trailhead for Black Butte trail. Lat. and Long. indicated +/- 36 feet. 1353 Comment
  SEINET10913361 Image available Cordylanthus tenuis subsp. pallescens Francis W. Pennell 1940-7-18 Pennell 26184 Siskiyou Route 99. Gravelly andesitic slope. 2-3 miles north of Mount Shasta City. 1158 Comment
  CHSC78536  Cordylanthus tenuis subsp. tenuis Vernon H. Oswald 2000-8-28 9957 Siskiyou Rock Fence Lake Road (40N18) 0.1 mi from its junction with Kangaroo Lake Road. 1662 Comment
  RSA523462  Cordylanthus tenuis subsp. viscidus L. R. Heckard, T. I. Chuang, R. C. Bacigalupi 1968-8-13 2123 Siskiyou Along Dunsmuir Avenue, just over a mile south of Dunsmuir (downtown). 823 Comment
  RSA397694  Cornus californica H. E. McMinn 1931-6-27 2513 Siskiyou Shasta City. Comment
  HSC19033  Cornus canadensis J. O. Sawyer 1969-7-9 1113 Siskiyou NW facing lower slope above Duck Lake Creek. 1909 Comment
  UC1045280  Cornus glabrata W. Bridge Cooke 1940-6-20 15171 Siskiyou Klamath R. near Pacific Hwy. below Hornbrook; Klamath R. Comment
  CAS-BOT-BC212061  Cornus nuttallii Alice Eastwood 1922-10-18 115 Siskiyou Shasta Springs Comment
  HSC31547  Cornus nuttallii Steve Selva, Roger Jensen 1974-8-17 24 Siskiyou 1 mi. below base of Sugar Lake trail along Rd. 40N23 Comment
  HSC73466  Cornus nuttallii Grunert 37 Siskiyou On Rd. 41NF1, ca. 6 mi. from Hwy. 3 1311 Comment
  SEINET10739247  Cornus nuttallii Andrew Townesmith, Karen M. Meyer 2007-8-3 Townesmith 898 Siskiyou Klamath National Forest, Oak Knoll Ranger District. Along Forest Service road 46N50, 4.4 miles NW of intersection with state route 96. Collected on uphill side of road (just above House Creek Botanical Area). T46N R11W S12. 593 Comment
  UC142946  Cornus nuttallii Dr. E. B. Copeland 1903-9-8 3850 Siskiyou foot of Mt. Eddy 1219 Comment
  CAS-BOT-BC210389  Cornus sericea Annie M. Alexander; Louise Kellogg 1948-9-6 5586 Siskiyou Siskiyou Mountains. At Matthews Creek, South Fork Salmon River Comment
  CAS-BOT-BC210397  Cornus sericea L. B. Kildale 1930-5-31 9796 Siskiyou Island in Klamath River near Hornbrook Comment
  CAS-BOT-BC180202  Corylus cornuta subsp. californica Alice Eastwood 1912-7-15 1093 Siskiyou Mc. Cloud Comment
  HSC19273  Corylus cornuta subsp. californica J. O. Sawyer 1968-7-23 595 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  HSC101718  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-6-25 13275 Siskiyou Along Sugar Creek Rd. 1214 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
  JEPS109232  Crataegus monogyna Dean W. Taylor 2004-7-19 19184 Siskiyou Weed, wet meadow just east of town limits along Boles Creek 1051 Comment
  CAS-BOT-BC290478  Crepis acuminata Geo. D. Butler 1910-7-4 1639 Siskiyou Goosenest foothills 1219 Comment
  CAS-BOT-BC376448  Crepis bakeri subsp. bakeri Geo. D. Butler 1910-5-10 1328 Siskiyou Goosenest foothills 1524 Comment
  HSC2329  Crepis intermedia Geo. D. Butler 1910-7-12 1758 Siskiyou Shackleford Creek 1372 Comment
  HSC43824  Crepis monticola Maralyn O'Meara 1974-5-27 478 Siskiyou Along Rd. 47N03 Comment
  UC429491  Crepis monticola Morris Halperin 1930-5-17 Siskiyou around Yreka (Geo. Gray of Yreka, prop. of ranch); Schulmeyer Gulch Comment
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May 9 2008
  CAS-BOT-BC376542  Crepis monticola G. L. Stebbins, Jr.; E. B. Babcock 1936-6-13 1974 Siskiyou East and northeast slope of spur of Rainbow Ridge above Sulloway Creek about 1 1/2 mi. west of Mt. Shasta City 1180 Comment
  POM33149  Crepis monticola Geo. D. Butler 1909-5-30 749 Siskiyou Humbug Mountain. 1220 Comment
  CAS-BOT-BC290869  Crepis pleurocarpa A. A. Heller 1915-7-16 12104 Siskiyou North side of Mt. Eddy 1371 Comment
  CAS-BOT-BC290875  Crepis pleurocarpa Alice Eastwood 1923-5-23 11925 a Siskiyou Cantara Comment
  OBI55464  Crepis pleurocarpa David J. Keil, Kathleen Keil 1992-7-21 23540 Siskiyou Klamath Natl forest SE of Callahan. forest Rd 40N08, 1.7 mi W of Scott Mtn rd (hwy 3) Comment
  CAS-BOT-BC290882  Crepis pleurocarpa Louis C. Wheeler 1934-8-16 3168 Siskiyou Klamath National Forest. 2 mi. E White Mt. 1920 Comment
  POM211803  Crepis pleurocarpa L. C. Wheeler 1934-8-16 3168 Siskiyou Siskiyou Mountains: 2 mi. east of White Mt. 1921 Comment
  RSA211202  Crepis pleurocarpa William J. Ferlatte 1966-8-4 300 Siskiyou Yellow Rose Mine. 1982 Comment
  JEPS22546  Crocidium multicaule George D. Butler 1909-3-7 553 Siskiyou near Yreka (upper field of Butler's Ranch) Comment
  SEINET9459397  Croton setiger G. D. Butler 1910-7-28 1794 Siskiyou Near Yreka. Comment
  JEPS116598  Cryptantha ambigua Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -014 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N73 Weed (unburned area within Hotlum Fire perimeter burned in Feb 2006 4 miles NE of town of); Mt. Shasta 1127 Comment
  JEPS107318  Cryptantha intermedia Lowell Ahart, John Dittes 2005-6-10 12114 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  UC532172  Cryptantha intermedia Isabelle C. Kimber 1934-6-9 27 Siskiyou just above Ney Creek confluence with Sacramento River (Steelbridge Camp); Sacramento River 731 Comment
  RSA273419  Cryptantha milobakeri J. P. Smith, Advanced plant taxonomy class-1974 1974-5-25 7393 Siskiyou Along road 8, 0.9 miles from its jct with State Route 3. 976 Comment
  RSA17700  Cryptantha sobolifera Elmer I. Applegate 1935-6-10 9486 Siskiyou Siskiyou County: steep cinder slope of Caldwell Butte, Lava Beds National monument, NE corner of Siskiyou Comment
  UCD120091  Cryptantha sobolifera A. H. Murphy 1959-7-22 59 K Siskiyou Trinity-Siskiyou County, Shasta National Forest, summit between Bear Creek and Toad Lake. 2346 Comment
  HSC36748  Cryptantha torreyana J. P. Smith 1974-5-25 7393 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  CAS-BOT-BC70480  Cryptogramma acrostichoides Ira L. Wiggins 1955-7-27 13529 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  SD53401  Cryptogramma cascadensis Darley F. Howe 1962-8-6 Siskiyou Mt. Shasta 2440 Comment
  SEINET9628241 Image available Cryptogramma cascadensis W. B. Cooke 1941-1 16304 Siskiyou Scattered through the lava slopes above Horse Camp, Mt. Shasta. 2515 Comment
  SEINET8671193 Image available Cryptogramma crispa subsp. acrostichoides M. W. Bridge Cooke 1937-1 9165 Siskiyou Mt. Shasta Comment
  CAS-BOT-BC80539  Cupressus bakeri Oliver V. Matthews 1939-7-22 41 Siskiyou unspecified 1219 Comment
  NY16602  Cupressus bakeri C. B. Wolf 1944-10-29 11478 Siskiyou Northwest side Goose Nest Mt., about 1 mile due south of Old Smith Sawmill on Montague to Mt. Hebron Road 1676.4 Comment
  RSA22775  Cupressus bakeri O. V. Matthews 1939-7-3 21 Siskiyou Southwest of Sullivan Mine. Cook-Green Region, 3 miles south of Blue Ledge Mine 1220 Comment
  UC1733972  Cupressus bakeri subsp. matthewsii Frank Gould, Kay H. Beach 1940-5-15 1247 Siskiyou Meadows and Goosenest Mountain. 1828 Comment
  JEPS24621  Cupressus lawsoniana Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6774 Siskiyou on river bank directly opposite Mossbrae Falls (between Shasta Retreat and Shasta Springs); Sacramento River 731 Comment
  SD241803  Cuscuta campestris Rob Wilson 2010-9-8 Siskiyou Siskiyou County: Near Tulelake. Growing in potato field. Sent in for identification by Rob Wilson, UC Cooperative Extension Farm Advisor. Comment
  HSC77760  Cuscuta suksdorfii L. P. Janeway 1983-8-16 547 Siskiyou Poker Flat 1524 Comment
  CDA5639  Cynoglossum officinale G. Deal 1967-6-13 Siskiyou 5 miles south of McCloud. 0 Comment
  OBI68614  Cynoglossum officinale T. C. Fuller 1968-8-1 17453 Siskiyou W side of rd to McCloud Reservoir, 0.3 mi S of McCloud Comment
  CAS-BOT-BC114693  Cyperus bipartitus Carl B. Wolf 1927-8-26 1085 Siskiyou On Klamath River, 14 mi above Happy Camp Comment
  UC14958  Cypripedium californicum W. C. Blasdale July, 1899 1077 b Siskiyou from summit of Siskiyous to Waldo, Oregon Comment
  HSC19325  Cypripedium fasciculatum J. O. Sawyer 1968-6-18 229 Siskiyou Valley bottom of Blakes' Fork. 1707 Comment
  UC1408835  Cystopteris fragilis Frederick W. Oettinger 1969-7-9 944 Siskiyou nw of Upper English Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1798 Comment
  HSC69220  Danthonia californica Maralyn A. Renner 1980-8-31 2624 Siskiyou Twin Valley. 1494 Comment
  UC1025011  Danthonia californica Leo Whitney 1935-7-15 3482 Siskiyou 2 mi se Medicine Lake; Bullseye Lake Comment
  UC1265438  Danthonia californica F. W. Oettinger and R. F. Thorne 1969-8-4 1153 Siskiyou above English Lake (w Siskiyou Co.); Salmon Mountains, Sundew Bog 1828 Comment
  CHSC61561  Danthonia californica var. americana L. P. Janeway 1983-8-26 595 B Siskiyou Siskiyou Mountains; at Poker Flat, in upper part of lower portion of meadow. 1524 Comment
  UC1108540  Danthonia californica var. americana Ira L. Wiggins 1955-7-27 13551 Siskiyou Caribou Lake Salmon River-Trinity Alps Primitive Area 2042 Comment
  HSC19074  Danthonia intermedia subsp. intermedia J. O. Sawyer 1969-8-5 1753 Siskiyou W of Little Duck Lake 2073 Comment
  JEPS83990  Danthonia unispicata L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6391 Siskiyou ca 1.5 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  CAS-BOT-BC76237  Darlingtonia californica A. A. Heller 1915-7-15 12090 Siskiyou Mount Eddy. 1828 Comment
  CHSC30186  Darlingtonia californica M. S. Taylor 1980-7-22 3171 Siskiyou Along creek and meadow, ca. 0.1 mi sw of Big Carme ... Field redacted by CHSC, contact the data manager for more information 1737 Comment
  SEINET5728399 Image available Darlingtonia californica Lowell E. Urbatsch, Vensa Karaman 2000-1 7696 Siskiyou Collected along Road 17, 8.8 mi. SW from the jct. of I-5 and Stewart Spring Rd.; Scott Mountains 1586 Comment
  UC1185279  Darlingtonia californica H. E. Brown June 1-10 1897 389 Siskiyou near Sisson 1083 Comment
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Nov 6 2019
  UC1607536  Darlingtonia californica Barbara Ertter with Julie Kierstead and Jim Nelson 1990-7-15 9364 Siskiyou at head of river ca 1 mi e Toad Lake (ca 8 air mi w of Mt Shasta City); Middle Fork Sacramento River 1981 Comment
  UC63716  Darlingtonia californica H. M. Hall and E. B. Babcock June, 1903 4042 Siskiyou near Sisson (18th Crossing, Sacramento River); Mount Shasta 1036 Comment
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Nov 6 2019
  UCD168822  Darlingtonia californica Barry Rice 2015-8-14 BR 150801 Siskiyou Southwest shore of Castle Lake. 1660 Comment
  RSA698849  Darlingtonia californica Leo Miller 1938-06 s.n. Siskiyou Siskiyou Mountains [Siskiyou or Del Norte counties]. 854 Comment
  HSC74082  Daucus carota J. P. Smith, J. O. Sawyer 1978-7-3 10010 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  HSC65272  Delphinium depauperatum Rich White 1978-7-6 246 Siskiyou Pond above Elk Hole 1524 Comment
  CAS-BOT-BC9888  Delphinium nudicaule Elmer Ivan Applegate 1935-6-6 9376 Siskiyou South base of Caldwell Butte, Lava Beds National Monument Comment
  HSC24999  Delphinium nudicaule R. C. Wunner 1965-6-6 73 Siskiyou Lava Beds National Monument, 0.1 mi. on road to Caldwell Ice Cave. 1372 Comment
  HSC686  Delphinium nuttallianum William J. Ferlatte 1966-7-7 201 Siskiyou Caribou Basin 1982 Comment
  JEPS93822  Delphinium nuttallianum Vernon H. Oswald and Lowell Ahart 1998-6-11 9205 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on the s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  CAS-BOT-BC118072  Delphinium nuttallianum George Dexter Butler 1909-6-22 901 Siskiyou Goosenest foothills Comment
  CAS-BOT-BC94478  Delphinium nuttallianum R. C. Wenk 2005-7-19 347 Siskiyou border between Siskiyou and Trinity Counties, National Forest Road 17, parking lot where Pacific Crest Trail crosses 2090 Comment
  RSA211135  Delphinium nuttallianum William J. Ferlatte 1966-6-20 88 Siskiyou Along S Fork of the Salmon River betw the campground and Carter's. 1524 Comment
  SEINET5338058  Delphinium nuttallianum G. Butler 1910-3-24 1142 Siskiyou Shasta River hills. Comment
  UC815232  Deschampsia danthonioides Louis C. Wheeler 1934-6-22 2751 Siskiyou Cottonwood Creek Siskiyou Mts., Cottonwood Creek 914 Comment
  UCD62522  Deschampsia danthonioides P. B. Kennedy 1923-7-29 Siskiyou Sisson. 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-BC65374  Descurainia incana R. C. Wenk 2005-7-15 232 Siskiyou Above South Fork Salmon River, along Yellow Rose Mine trail. 1828 Comment
  CHSC93557  Descurainia incisa subsp. filipes Lowell Ahart; John Dittes 2005-6-10 12062 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC6707  Descurainia pinnata subsp. brachycarpa R. C. Wunner 1965-6-6 64 Siskiyou California Lava Beds National Monument, Indian Well Campground 1433 Comment
  RSA47781  Descurainia pinnata subsp. filipes Roxana S. Ferris, Laura Lorraine 11829 Siskiyou Gazelle Mountain grade, road between Callahan and Gazelle. 1500 Comment
  CAS-BOT-BC43266  Descurainia pinnata subsp. glabra L. E. Smith 1913-6-25 394 Siskiyou Castella. Comment
  JEPS107484  Descurainia sophia Lowell Ahart, John Dittes 2005-6-9 12054 Siskiyou Meadow area along a small drainage, along the sides of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  SBBG30503  Dicentra formosa D. Myrick 1968-6-24 2007 Siskiyou Adams Crk above Mountain Meadow Ranch, Big Flat, Coffee Crk; Trinity Alps 1828 Comment
  CAS-BOT-BC402477  Dicentra formosa subsp. formosa Ira L. Wiggins 1955-7-29 13576 Siskiyou N-facing slope between Caribou Lake and Pass to Thompson Creek 1956 Comment
  CAS-BOT-BC402548  Dicentra pauciflora Ira L. Wiggins 1950-5-28 12380 Siskiyou Ridge just above Grouse Lake (headwaters of Grouse Creek) 1737 Comment
  UC375189  Dichelostemma multiflorum Geo. D. Butler 1908-6-29 117 Siskiyou near Oro Fino Comment
  CDA39452  Dichelostemma multiflorum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2779 Siskiyou Yreka. West of Motel 6, south of town, north of Greenhorn Creek Road. Comment
  CHSC4539  Dieteria canescens J. E. Bowlin 1967-7-18 51 Siskiyou Ca. 12 mi W of Mount Shasta Ski Bowl. 1066 Comment
  UCD70188  Dieteria canescens var. shastensis D. Sanchez-Mata 1997-9-18 s.n. Siskiyou Mount Shasta-Lake Siskiyou-Gumboot Lake. South Fork (Sacramento River) Road. 1340 Comment
  SBBG16031  Diplacus jepsonii D. Myrick 1961-6-22 318 Siskiyou St Hwy 89 near McCloud 914 Comment
  CAS-BOT-BC153653  Diplacus jepsonii Alice Eastwood 1912-7-16 1143 Siskiyou [Mc Cloud] McCloud Comment
  CAS-BOT-BC153449  Diplacus layneae L. E. Smith 1913-7-4 s.n. Siskiyou North fork Castle Creek Comment
  CAS-BOT-BC153723  Diplacus nanus Roxana S. Ferris; Laura Lorraine 1948-6-12 11717 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], east fork of Scott River Comment
  JEPS107661  Distichlis spicata Lowell Ahart, John Dittes 2005-6-9 12004 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  RSA755664  Dodecatheon alpinum Barbara J. Ertter, Julie Kierstead, Jim Nelson 1990-7-15 9370 Siskiyou ca 1 mile east of Toad Lake at head of Middle Fork Sacramento River, ca. 8 air miles west of Mount Shasta City. 1982 Comment
  UCD77606  Dodecatheon alpinum Robert E. Preston 2001-6-23 1609 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 1965 Comment
  RSA78680  Dodecatheon hendersonii P. A. Munz 1952-7-2 17873 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1494 Comment
  HSC29258  Dodecatheon jeffreyi Frederick W. Oettinger 1968-8-3 380 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: At 'Base Camp Meadow' between Diamond and Hancock Lakes 201 Comment
  RSA297050  Dodecatheon jeffreyi John F. Emmel 1974-7-19 518 Siskiyou wet meadow 0.2 air mile west of Lily Pad Lake. 1753 Comment
  CAS-BOT-BC26728  Downingia bacigalupii John H. Weiler; Andrew Phillips Nelson 1960-6-24 60205 Siskiyou Side of Dorris-Beswick road, 207 miles SW of the California-Oregon border. Comment
  CAS-BOT-BC540707  Draba howellii Dana York 2012-7-21 3139 Siskiyou Siskiyou Mountains: Rogue River-Siskiyou National Forests, Red Butte Wilderness, NE Slope of Red Butte 1925 Comment
  HSC61207  Draba howellii Al Hobart Siskiyou El Capitan 1829 Comment
  CAS-BOT-BC41761  Draba howellii Gilbert Muth 1965-8-4 s.n. Siskiyou Marble Mountains. Comment
  UC1360449  Draba pterosperma Jack Major, M. Fleschner, and R. Pemble 1966-9-4 Siskiyou ne face of Marble Mountain Marble Mountains, ne face Marble Mountain 2133 Comment
  HSC18936  Drymocallis glandulosa J. O. Sawyer 1969-7-18 1364 Siskiyou E of Waterdog Lake 2012 Comment
  HSC42906  Drymocallis glandulosa J. O. Sawyer, Ken Stillman 1976-5-28 2724 Siskiyou Along Rd. W of Sawyers Bar. 610 Comment
  CAS-BOT-BC527347  Drymocallis glandulosa var. reflexa A. A. Heller 1916-6-20 12399 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC29648  Drymocallis glandulosa var. reflexa Frederick W. Oettinger 1968-8-22 598 Siskiyou Marble Mtn. Wilderness Area, ridge between English Peak and Diamond Lake 2165 Comment
  UC73027  Drymocallis lactea var. austiniae Milo S. Baker Aug. 1897 Siskiyou Mt. w Medicine Lake (near to); Mt. West of Medicine Lake 3048 Comment
  HSC60786  Drymocallis lactea var. lactea Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  JEPS57170  Drymocallis pseudorupestris var. saxicola L. R. Heckard 1967-8-13 1705 Siskiyou Summit Region of Mount Eddy Mount Eddy; Summit Region of Mount Eddy 2743 Comment
  HSC45487  Dulichium arundinaceum Maralyn O'Meara 1973-6-5 196 Siskiyou 1.0 mi. up Duck Lakes Trail along a trail crossing stream Comment
  UCSB17782  Dysphania botrys Breedlove, Dennis 1962-6-11 Siskiyou At confluence of Scott and Klamath Rivers 472 Comment
  UC1265386  Eleocharis bella Frederick W. Oettinger 1969-8-15 1387 Siskiyou vicinity of English Peak (inlet to Upper English Lake); Salmon Mountains, Western Siskiyou County, Marble Mountain W 1767 Comment
  CAS-BOT-BC113417  Eleocharis bella W. R. Ernst 1958-8-8 286 Siskiyou Grass Lake area, ca. 32 mi S or Oregon State line on Hwy 97. Comment
  SEINET7586255 Image available Eleocharis macrostachya Frederick W. Oettinger 1968-9-5 716 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. Inlet stream to Hancock Lake. 1935 Comment
  RSA365460  Eleocharis parishii L. C. Wheeler 1934-7-17 2913 Siskiyou Cottonwood Creek, Siskiyou Mtns. (Mt Diablo Mer.) 1037 Comment
  CAS-BOT-BC213783  Elymus X hansenii Wm. Bridge Cooke 1938-7-15 11227 Siskiyou Above Bear Springs. 1676 Comment
  CAS-BOT-BC221831  Elymus canadensis Alice Eastwood 1921-7-28 10949 Siskiyou Medicine Lake Comment
  CAS-BOT-BC227914  Elymus elymoides Peter H. Raven 1956-9-4 10421 Siskiyou Summit of Mt. Eddy 2758 Comment
  CAS-BOT-BC227923  Elymus elymoides L. E. Smith 1913-6-25 393 Siskiyou Montague Comment
  RSA210772  Elymus elymoides Jim Henrickson, C. W. Tilforth 1969-9-3 39037 Siskiyou Margin of desiccated alkali flat along Hwy 161 on N side of Lower Klamath Lake, Lake Klamath National Wildlife Refuge, 1.9 mi. E of junction of Hwys 97 and 161l with Chenopodium rubrum, Atriplex argentea expansa. etc. Comment
  UC1483411  Elymus elymoides subsp. elymoides Maralyn A. Renner 1980-8-7 2418 Siskiyou ridge s Preston Peak; Klamath National Forest, Preston Peak Quad. 1950 Comment
  HSC102707  Elymus elymoides var. californicus J. P. Smith 2013-6-17 13740 Siskiyou Off Tennant Road at a large, open pit. 1417 Comment
  RSA239024  Elymus glaucus Frederick W. Oettinger 1969-9-3 1622 Siskiyou South slope of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC206607  Elymus glaucus subsp. glaucus Copeland 1903-9-6 3802 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC206615  Elymus glaucus subsp. glaucus Alice Eastwood 1912-7-17 1094 Siskiyou McCloud Comment
  CHSC88365  Elymus multisetus Jenny Marr 1993-7-1 171 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC103035  Elymus multisetus J. P. Smith 2014-6-7 13893 Siskiyou Etna Comment
  UCD35446  Elymus trachycaulus Beecher Crampton 1956-8-22 3867 Siskiyou South slope of Mt. Shasta. 1645 Comment
  CAS-BOT-BC204264  Elymus trachycaulus subsp. subsecundus David D. Keck 1949-7-19 6353 Siskiyou 6.5 mi. SW of Yreka on road to Ft. Hones [Jones] nr. head of Yreka Ck 1127 Comment
  RSA237399  Epilobium anagallidifolium Frederick W. Oettinger 1969-9-2 1595 -b 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
  UC164268  Epilobium brachycarpum Geo. D. Butler 1910-7-3 1629 Siskiyou Goosenest foothills 1219 Comment
  UCR37591  Epilobium brachycarpum L. P. Janeway 1983-9-11 666 Siskiyou Poker Flat 1524 Comment
  POM171581  Epilobium ciliatum subsp. ciliatum Doris K. Kildale 1928-7-25 5906 Siskiyou Klamath River at Mack s Creek near Hamburg Comment
  RSA424894B  Epilobium ciliatum subsp. ciliatum S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  HSC29130  Epilobium ciliatum subsp. glandulosum Frederick W. Oettinger 1969-8-22 1493 Siskiyou Salmon Mtns., N side of Horse's Hole near Horse Range Lake 1829 Comment
  HSC96409  Epilobium glaberrimum subsp. fastigiatum Gordon Leppig, J. Kalt 1996-7-9 364 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UCD80891  Epilobium glaberrimum subsp. fastigiatum Robert E. Preston 2001-6-23 1585 Siskiyou Klamath National Forest, N slope of Rainbow Mountain, at Hemlock Lake. 1889 Comment
  POM258627  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1940-7-5 15231 Siskiyou Mt. Shasta: in the meadow at Bear Springs. 1524 Comment
  HSC91954  Epilobium hallianum Jennifer Whipple 1976-7-23 1527 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC642573  Epilobium hallianum W. Bridge Cooke 1939-8-22 13881 Siskiyou below bog at Wagon Camp; Mount Shasta Comment
  RSA105429  Epilobium hallianum Douglas Barbe 1955-7-26 277 Siskiyou Klamath Mountains: At a spring on the north slope of Scott Mountain 1829 Comment
  UCD80892  Epilobium hallianum Robert E. Preston 2001-7-21 1720 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mountain. 2066 Comment
  HSC49639  Epilobium hornemannii subsp. hornemannii J. P. Smith, Steve Selva 1970-6-16 4068 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  POM251084  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1938-7-29 11415 Siskiyou Wagon Camp Creek, Mt. Shasta. 1738 Comment
  UCR37556  Epilobium luteum L. P. Janeway 1983-9-11 679 a Siskiyou Poker Flat 1524 Comment
  JEPS84342  Epilobium minutum L. R. Heckard with J. Hickman et al. 1986-7-17 6461 Siskiyou trail up Kangaroo Peak s Lily Pad Lake (ca 5 mi n of town of Seiad Valley) Comment
  RSA458730  Epilobium obcordatum Louis C. Wheeler 1934-8-14 3135 Siskiyou North side White Mt., Siskiyou Mountains 1768 Comment
  HSC65267  Epilobium siskiyouense Rich White 1977-7-21 138 Siskiyou N slope of Preston Peak 1799 Comment
  SEINET3864901 Image available Equisetum arvense Edward L. Smith 1967-5-22 s.n. Siskiyou By railroad tracks. City of Mt. Shasta.; 0 1085 Comment
  CAS-BOT-BC57203  Equisetum hyemale subsp. affine Louis C. Wheeler 1934-7-12 2902 Siskiyou Klamath National Forest, Cottonwood Creek Comment
  UC1045285  Equisetum laevigatum W. Bridge Cooke 1940-6-7 15088 Siskiyou just n Mts. Shasta city (along US 99) Comment
  RSA60487  Equisetum laevigatum John H. Thomas 1949-6-16 941 Siskiyou 10 miles north of Gazelle. Comment
  SEINET3164603  Eremocarpus setiger G. D. Butler 1910-7-28 1794 Siskiyou near Yreka Comment
  HSC68335  Eremogone congesta Maralyn A. Renner 1980-6-26 1233 Siskiyou SE edge of Flint Valley. 1390 Comment
  CAS-BOT-BC168331  Eremogone congesta var. congesta A. A. Heller 1918-7-16 13031 Siskiyou Mt. Eddy, west of Sisson 2133 Comment
  CAS-BOT-BC168333  Eremogone congesta var. congesta Harley P. Chandler 1901-6-1 1674 Siskiyou Marble Mountain 2438 Comment
  HSC16948  Eriastrum sparsiflorum R. C. Wunner 1965-7-13 388 Siskiyou Lava Bed National Monument, along fire rd. around Crescent Butte-Lone Pine Flat Rd. 1479 Comment
  CAS-BOT-BC291264  Ericameria bloomeri L. R. Short 1933-9-8 68 Siskiyou Klamath National Forest. Deer Camp 1889 Comment
  RSA168828  Ericameria bloomeri Joseph P. Tracy 1949-9-15 18557 Siskiyou Near top, Blue Ridge, on road between Cecilville and Sawyer's Bar 1585 Comment
  UC527338  Ericameria bloomeri C. B. Wolf 1931-9-2 Siskiyou 0.5 mi above junction Pacific Highway (on the road to McCloud) 1097 Comment
  CAS-BOT-BC286697  Ericameria bloomeri Walter Knight; Irja Knight 1979-9-9 3433 Siskiyou On Evertt Memorial Highway. Mt. Shasta Comment
  HSC36474  Ericameria greenei J. O. Sawyer 1969-7-2 1026 Siskiyou SW-facing upper slope above Music Creek 2378 Comment
  HSC5338  Ericameria nauseosa R. C. Wunner 1965-8-17 446 Siskiyou California Lava Beds National Monument; Indian Wells Campground 1433 Comment
  CAS-BOT-BC298253  Ericameria nauseosa var. oreophila Peter H. Raven 1956-9-5 10464 Siskiyou North Fork of the Sacramento River 1828 Comment
  UC87229  Ericameria nauseosa var. oreophila K. Brandegee 1887-7-1 Siskiyou Gazelle Comment
  CAS-BOT-BC294302  Ericameria nauseosa var. speciosa Doris K. Kildale 1928-7-4 5499 Siskiyou Summit of divide between Salmon River and Scott Valley Comment
  CAS-BOT-BC299463  Ericameria nauseosa var. speciosa John Thomas Howell 1939-8-6 15105 Siskiyou Elk Mt., Marble Mts. Comment
  POM357567  Erigeron aliceae L. C. Wheeler 1934-7-3 2855 Siskiyou Soda Creek, Sterling Mt. Siskiyou Mountains. (Mt. Diablo Mer.) 1676 Comment
  CAS-BOT-BC293503  Erigeron aliceae Geo. D. Butler 1908-8-8 290 Siskiyou West Fork of Woolly Creek Comment
  POM35919  Erigeron aliceae Geo. D. Butler 1910-6-8 1653 Siskiyou Shackleford Creek Comment
  CDA4407  Erigeron austiniae Vernon H. Oswald & Lowell Ahart 1998-6-11 9214 Siskiyou Klamath National Forest boundary on Old State Highway, 1.5 miles south of the railroad crossing south of Mount Hebron. Comment
  CAS-BOT-BC294495  Erigeron bloomeri var. bloomeri John Thomas Howell 1939-8-4 15052 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  UC163866  Erigeron bloomeri var. bloomeri Geo. D. Butler 1910-5-16 1350 Siskiyou Yreka Comment
  CAS-BOT-BC294898  Erigeron cervinus K. T. Stillman 1976-9-9 471 Siskiyou Marble Mountain Wilderness Area. N & NE & E side of Black Mtn. Comment
  HSC19165  Erigeron cervinus J. O. Sawyer 1969-7-10 1284 Siskiyou East facing slope above Sugar Lake 2226 Comment
  HSC29238  Erigeron cervinus Frederick W. Oettinger 1969-7-28 1080 Siskiyou Salmon Mountains: the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness area; WNW of and above Upper English Lake 2012 Comment
  HSC41054  Erigeron cervinus J. O. Sawyer 1969-7-9 1108 Siskiyou Dry slope above Little Duck Lake. Grandiorite 2012 Comment
  HSC59903  Erigeron cervinus D. L. Goforth 1979-7-19 262 Siskiyou Caribou Lakes Basin, lakeside at upper lake. 2134 Comment
  HSC77104  Erigeron cervinus K. T. Stillman 1976-7-31 354 Siskiyou Marble Mtn. Wilderness Area: Ridge N of jump off Comment
  HSC67541  Erigeron compositus J. P. Smith, J. O. Sawyer 1972-6-30 5646 Siskiyou Ridge W of Little Duck Lake. 2378 Comment
  CAS-BOT-BC297163  Erigeron concinnus var. concinnus Elmer I. Applegate 1929-6-18 5737 Siskiyou About 5 miles north of Edgewood, Shasta Valley Comment
  CAS-BOT-BC297184  Erigeron concinnus var. concinnus A. A. Heller 1905-6-19 8063 Siskiyou Along the railroad near Grenada station Comment
  HSC5560  Erigeron elegantulus R. C. Wunner 1965-7-9 375 Siskiyou Lava Beds National Monument Upper Ice Cave 1555 Comment
  CAS-BOT-BC295387  Erigeron inornatus L. E. Smith 1914-7-6 749 Siskiyou Sisson Comment
  CAS-BOT-BC295399  Erigeron inornatus John Thomas Howell 1934-7-4 12401 Siskiyou Se. corner of Siskiyou Co. Comment
  SD62054  Erigeron inornatus Darley F. Howe 1965-8-8 4122 Siskiyou South side of Little Gray Back. 1435 Comment
  CAS-BOT-BC295427  Erigeron inornatus var. calidipetris W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Comment
  UC618633  Erigeron inornatus var. inornatus unknown 1938-7-22 11326 Siskiyou Mount Shasta Mount Shasta (Sisson Southern Trail) 1371 Comment
  CAS-BOT-BC295458  Erigeron klamathensis Louis C. Wheeler 1934-8-6 3055 Siskiyou Rock Gulch off Jaynes Canyon, Siskiyou Mts. 1828 Comment
  HSC69344  Erigeron klamathensis Maralyn A. Renner 1980-9-9 2758 Siskiyou Medicine Mtn., ridge to SW 2058 Comment
  CAS-BOT-BC295366  Erigeron petrophilus R. C. Wenk 2005-7-20 351 Siskiyou National Forest Road 17, 1 mile down road to the north, heading towards Mt. Shasta 2029 Comment
  HSC32257  Erigeron petrophilus var. viscidulus J. O. Sawyer 1970-7-6 2331 Siskiyou 1662 Comment
  POM39278  Erigeron pumilus subsp. intermedius Geo. D. Butler 1910-6-3 1471 Siskiyou Quartz Valley. Comment
  CDA4640  Erigeron strigosus Don Shaw 1978-10-1 Siskiyou D.H. Shaw property, Montague. 0 Comment
  HSC67523  Eriodictyon californicum J. P. Smith, Steve Selva 1970-6-15 3931 Siskiyou Between Forks of Salmon and Cecilville. Comment
  CHSC110662  Eriogonum Julie Kierstead Nelson; Rhonda Posey, Peter Zika, Talitha Derksen 2012-6-21 2012 -056 Siskiyou South Fork Willow Creek, foothills of N side Scott Mountain. Rd. 42N19 Sec. 30.; ca. 1 mile S of Gazelle-Callahan Hwy. 1158 Comment
  CAS-BOT-BC250072  Eriogonum compositum var. compositum Louise A. Boyd; Katherine Donahoe 1923-5-1 s.n. Siskiyou Near Yreka Comment
  JEPS98387  Eriogonum congdonii Vernon H. Oswald 2000-8-28 9958 Siskiyou Rock Fence Lake Road (40N18) 0.6 mi from its jct. with Kangaroo Lake Road 1737 Comment
  RSA60782  Eriogonum congdonii Dorothy Parker 1948-8-19 s.n. Siskiyou Near Chinquapin, on Scott Mountain 1524 Comment
  HSC35789  Eriogonum diclinum J. O. Sawyer 1969-7-2 1001 Siskiyou E of Twin Lakes 2195 Comment
  RSA739627  Eriogonum diclinum L. P. Janeway 2008-7-24 9479 a Siskiyou Klamath Ranges, Siskiyou Mtns, crest of the Mtn 2.1 air km NE of Condrey Mtn. 2115 Comment
  RSA165451  Eriogonum douglasii Clare B. Hardham 1961-6-30 8033 Siskiyou Near Mud Springs. 1829 Comment
  POM253985  Eriogonum douglasii var. douglasii C. L. Hitchcock, J. S. Martin 1939-7-8 5304 Siskiyou North side of Black Mt 2073 Comment
  RSA393293  Eriogonum elatum var. elatum M. B. Dunkle 1945-8-2 9275 Siskiyou Paradise Lake, Klamath National Forest, Marble Mountains. Comment
  UC1324596  Eriogonum hirtiflorum W. B. and V. G. Cooke 1966-7-16 37214 Siskiyou above Bolam Station (along old road); Mt. Shasta 1524 Comment
  POM105148  Eriogonum luteolum Geo. D. Butler 1910-6-17 1572 Siskiyou Near Yreka Comment
  RSA19311  Eriogonum marifolium L. S. Rose 1937-7-25 37588 Siskiyou South slope of Mt. Shasta. 1768 Comment
  CAS-BOT-BC257776  Eriogonum marifolium var. marifolium R. C. Wenk 2008-7-23 904 Siskiyou Southwest side of Mount Shasta, trail from Bunny Flat (6950 ft) to Sierra Club Cabin above Avalanche Gulch (7600 ft) Comment
  UC1540014  Eriogonum microthecum var. ambiguum Mitchell 1936-5-9 12 Siskiyou sse sloipe of Schonchin Butte Lava Beds National Monument, Schonchin Butte 1569 Comment
  RSA601667  Eriogonum niveum Louis C. Wheeler 1935-6-27 3610 Siskiyou Greenview, Scott Valley. 884 Comment
  HSC69137  Eriogonum nudum Maralyn A. Renner 1980-8-8 2481 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  CHSC32977  Eriogonum nudum var. nudum J. P. Smith; J. O. Sawyer 1972-5-28 5366 Siskiyou 2.7 miles north of road 8 and Sugar Creek on State Route 3; hillside and roadside ditch. 914 Comment
  JEPS95655  Eriogonum nudum var. nudum Vernon H. Oswald and L. Ahart 1999-7-5 9824 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
  HSC23546  Eriogonum nudum var. nudum J. O. Sawyer 1969-7-18 1383 Siskiyou Ridge above S Russian Creek 1921 Comment
  HSC42996  Eriogonum nudum var. nudum J. P. Smith, Steve Selva 1970-6-14 3860 Siskiyou Comment
  HSC43447  Eriogonum nudum var. nudum Jennifer Whipple 1976-7-8 1360 Siskiyou Dobkins Lake drainage on E slopes above Dobkins Lake 2256 Comment
  CAS-BOT-BC269740  Eriogonum nudum var. oblongifolium Alice Eastwood 1912-7-23 1355 Siskiyou Cantara Comment
  JEPS56649  Eriogonum nudum var. pubiflorum W. L. Jepson 1940-6-22 19978 Siskiyou near Hawkinsville; Shasta River 792 Comment
  SEINET10679906  Eriogonum nudum var. pubiflorum Karen M. Meyer, Andrew Townesmith 2007-8-4 Meyer 189 Siskiyou Klamath National Forest, 0.6 mi. on right fork, 6 mi. on rd. 7J001 out of Yreka, CA. (road past the water tower). 1286 Comment
  SD75847  Eriogonum nudum var. pubiflorum Darley F. Howe 1969-8-8 4673 Siskiyou 4.2 miles south of Yreka 822 Comment
  JEPS25567  Eriogonum pyrolifolium Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7192 Siskiyou pumice fields just e Mt. Shasta Ski Bowl Lodge (sw slope of mt., at upper end of Everitt Hwy); Mt. Shasta 2346 Comment
  CAS-BOT-BC252958  Eriogonum pyrolifolium var. pyrolifolium C. G. Pringle 1881-8-24 s.n. Siskiyou Mount Shasta 2438 Comment
  RSA142605  Eriogonum pyrolifolium var. pyrolifolium P. A. Munz 1960-8-22 24195 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  CHSC34102  Eriogonum siskiyouense J. D. Jokerst; M. D. Huffine 1981-9-8 1463 Siskiyou E of and adjacent to rd. 1249 Comment
  CAS-BOT-BC262727  Eriogonum sphaerocephalum var. halimioides Noel H. Holmgren; James L. Reveal 1966-6-9 2681 Siskiyou US 97, 5.5 miles south of Macdoel, 35 miles north of Weed 1341 Comment
  UCD101201  Eriogonum strictum var. proliferum Dean William Taylor; G. Ledyard Stebbins 1972-7-4 1623 Siskiyou along Highway 3, about 3 miles east of Etna. 1066 Comment
  JEPS108711  Eriogonum ternatum Thomas W. Nelson and Jane P. Nelson 2006-8-4 9465 Siskiyou Scott Mountain S of junction of Forest service Rd. 40N08 and 44N44 ca 1/2 mi E of junction of State Route 3 and Forest Service Rd. 40N08E side of North-South running ridge. 1670 Comment
  CAS-BOT-BC267949  Eriogonum umbellatum Alice Eastwood; John Thomas Howell 1940-6-14 8257 Siskiyou Lava Beds Nat. Mon. near Indian Wells Comment
  CAS-BOT-BC267937  Eriogonum umbellatum C. H. M. 1919-10-17 s.n. Siskiyou Sacramento River Canyon (at Pollock bridge) Comment
  HSC61798  Eriogonum umbellatum Ruby Van Deventer 9 Aug [year missing] Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC124189  Eriogonum umbellatum var. argus J. L. Reveal; Mark Lee Reveal 1975-8-15 3955 Siskiyou Siskiyou Mountains, Klamath National Forest, along the Dry Lake Lookout Road (Forest Service Road 40S01) 2042 Comment
  CAS-BOT-BC267976  Eriogonum umbellatum var. argus Dorothy Parker 1950-8-6 490 Siskiyou Salmon Mountain 1798 Comment
  RSA237986  Eriogonum umbellatum var. argus Frederick W. Oettinger 1969-8-25 1548 -b Siskiyou Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2027 Comment
  CAS-BOT-BC267995  Eriogonum umbellatum var. argus Gordon H. True 1966-9-9 3293 Siskiyou 20 miles south east of Obrien on Happy Camp Road 1524 Comment
  JEPS56182  Eriogonum umbellatum var. dumosum J. G. Lemmon 1889-6-28 Siskiyou near Edgewood Comment
  CAS-BOT-BC267793  Eriogonum umbellatum var. ellipticum Louis C. Wheeler 1934-9-1 75541 Siskiyou Jaynes Canyon, Klamath National Forest 1950 Comment
  RSA238990  Eriogonum umbellatum var. goodmanii Frederick W. Oettinger 1966-6-27 30 Siskiyou About 600 yds up road from Crawford Creek, Guard Station, Salmon River District, Klamath Nat. Forrest, Cevilville. 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
  JEPS84201  Eriogonum umbellatum var. modocense L. R. Heckard with J. Hickman et al. 1986-7-17 6504 Siskiyou e Condrey Mt. (slopes); Alex Hole 1880 Comment
  JEPS94877  Eriogonum umbellatum var. modocense Vernon H. Oswald and Lowell Ahart 1998-7-21 9320 Siskiyou ne of Weed (Highway 97 at the 11.0 Mile Marker, 1.2 mi w of A12); Highway 97 at the 11.0 Mile Marker 1188 Comment
  CAS-BOT-BC265198  Eriogonum umbellatum var. nevadense Frank W. Peirson 1923-7-19 3711 Siskiyou Near Bray Comment
  HSC77247  Eriogonum umbellatum var. stellatum L. P. Janeway 1983-9-23 693 Siskiyou At Poker Flat 1524 Comment
  HSC77563  Eriogonum umbellatum var. stellatum L. P. Janeway 1983-9-11 660 Siskiyou Poker Flat 1524 Comment
  CAS-BOT-BC262375  Eriogonum vimineum Geo. D. Butler 1910-7-31 1806 Siskiyou Near Yreka Comment
  RSA50196  Eriogonum vimineum E. K. Balls 1949-7-8 13908 Siskiyou Trail from Scott Mountain Camp to Carmen Lake; Scott Mountain. 1753 Comment
  CAS-BOT-BC262369  Eriogonum vimineum L. E. Smith 1913-7-7 s.n. Siskiyou Yreka Comment
  CAS-BOT-BC262382  Eriogonum vimineum L. R. Abrams 1927-9-11 12143 Siskiyou Fork of Shasta and Klamath Rivers Comment
  CAS-BOT-BC443953  Eriophorum crinigerum Dana York 2012-7-20 3122 Siskiyou Rogue River - Siskiyou National Forest, Siskiyou Mountains, ca. 2.4 km W-SW of Cook and Green Pass, moist slope above Echo Lake. 1710 Comment
  HSC98412  Eriophorum crinigerum L. P. Janeway 1982-8-14 138 Siskiyou Elk Wallow 1677 Comment
  UCD132177  Eriophyllum lanatum Wm. E. Moon 1958-5-29 s.n. Siskiyou State Highway 97, 12 miles northeast of Weed. 1219 Comment
  SEINET10672044  Eriophyllum lanatum Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 684 Siskiyou 11 mi. N of Weed, on U.S. Hwy. 97; decomposed lava, sandy on slight S-E facing slope. 1250 Comment
  CAS-BOT-BC301111  Eriophyllum lanatum var. achilleoides Lewis S. Rose 1934-4-20 34229 Siskiyou Shasta River, NE. of Yreka Comment
  CAS-BOT-BC301113  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-22 12488 Siskiyou East side of Mt. Eddy Comment
  CAS-BOT-BC301124  Eriophyllum lanatum var. achilleoides Geo. D. Butler 1910-5-4 1279 Siskiyou Near Yreka Comment
  UC507118  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-21 E 86 Siskiyou 1 mi s Weed Comment
  UC896369  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-20 12479 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  UC507183  Eriophyllum lanatum var. grandiflorum Lincoln Constance 1928-6-1 Siskiyou near Weed Comment
  CAS-BOT-BC308283  Eriophyllum lanatum var. integrifolium G. J. Muth 1969-8-6 1189 Siskiyou Boulder Peak 2529 Comment
  UC643287  Eriophyllum lanatum var. integrifolium unknown 1940-7-26 15368 Siskiyou in the lower part of Diller Canyon (in openings between chaparral and pine woods); Mount Shasta, Diller Canyon 1524 Comment
  HSC67902  Eriophyllum lanatum var. lanceolatum J. P. Smith 1973-5-5 6543 Siskiyou Scott Bar along the Scott River Comment
  HSC81986  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson 1979-6-16 4871 Siskiyou Along SR 3, 2.2 mi. N of Scott Mtn. Summit 1341 Comment
  UC163899  Eriophyllum lanatum var. lanceolatum Geo. D. Butler 1910-5-23 1394 Siskiyou Humbug Mountain Comment
  UC1971396  Eriophyllum lanatum var. lanceolatum Louis C. Wheeler 1958-8-18 7399 Siskiyou Mt. View Mine, West Fork Seiad Creek. Comment
  CAS-BOT-BC124135  Eriophyllum rixfordii G. P. Rixford s.n. Siskiyou South side of Shaft Rock Mt., near Hilt Comment
  JEPS24799  Eryngium articulatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6808 Siskiyou ca. 3 mi. n.w. Weed (head of Shasta Valley) 975 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
  HSC36817  Erysimum capitatum var. capitatum J. P. Smith 1974-5-27 7616 Siskiyou Along FS Rd. 47N03 1280 Comment
  RSA530365  Erysimum capitatum var. capitatum Christopher Davidson 1975-6-5 2675 Siskiyou 2.8 mi from gate on special service rd branching SE from rd from Gazelle to Callahan 9.3 mi W of Gazelle. Klamath Nat. Forest. 1631 Comment
  RSA211341  Erysimum capitatum var. perenne William J. Ferlatte 1966-6-23 119 Siskiyou Dorleska summit; Trinity Alps. 2134 Comment
  SEINET14378928  Erythranthe W. Roderick, D. Parker 1967-7-25 s.n. Siskiyou Cabin Meadow. 1829 Comment
  CHSC86451  Erythranthe guttata Jenny Marr 1993-7-1 68 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NE of Meiss Lake. 1349 Comment
  SBBG25925  Erythranthe linearifolia D. Myrick 1966-8-12 1548 Siskiyou rd to Carter Ranch, Mountain Meadow Ranch, Big Flat 1615 Comment
  CHSC86257  Erythronium klamathense Martin J. Lenz 2003-5-1 2 Siskiyou North Fork Bear Creek, 3.1 mi NW of Pondosa. UTM: Zone 10. 606070E 4564100N. 1276 Comment
  HSC68355  Eschscholzia californica J. P. Smith 1973-5-5 6541 Siskiyou Scott Bar along the Scott River Comment
  UC144488  Eschscholzia californica A. A. Heller 1905-6-9 8002 Siskiyou Yreka Comment
  CAS-BOT-BC403670  Eschscholzia californica D. M. Traugh 1933-5-31 78 Siskiyou Klamath National Forest Comment
  CAS-BOT-BC403683  Eschscholzia californica Elmer I. Applegate 1935-6-12 9523 Siskiyou South slope of Caldwell Butte, Lava Beds National Monument Comment
  JEPS124522 Image available Eschscholzia californica J. Yamanaka 1965-7-13 137 Siskiyou McCloud Highway 89 m. Center of town. Comment
  HSC25665  Eucephalus ledophyllus var. ledophyllus J. O. Sawyer 1969-9-12 2010 Siskiyou Hanging valley N of Wildcat Peak 2012 Comment
  RSA275330  Euonymus occidentalis J. O. Sawyer, K. T. Stillman 1976-7-1 2772 Siskiyou Along the Little North Fork of the Salmon River 732 Comment
  RSA498946  Euphorbia crenulata L. C. Wheeler 1934-6-4 2634 Siskiyou Hamburg Gulch off Horse Creek. 610 Comment
  CDA4824  Euphorbia cyparissias Don Shaw 1972-5-24 Siskiyou Brookside Avenue, Weed. 0 Comment
  SEINET8687815 Image available Eurybia radulina G. D. Butler 1910-7-20 1729 Siskiyou Goosenest foothills 1524 Comment
  CAS-BOT-BC94540  Festuca californica R. C. Wenk 2006-7-24 531 Siskiyou Scott Mountains, border between Trinity and Siskiyou Counties, forest near the Pacific Crest Trail, 1/2 km E of Hwy 3 1700 Comment
  HSC100206  Festuca californica J. P. Smith, , J. O. Sawyer, & R. J. Cole 2011-5-22 13181 Siskiyou Matthews Campground on the Cecilville to Forks of Salmon Road. 640 Comment
  RSA239118  Festuca idahoensis Frederick W. Oettinger 1969-9-4 1673 Siskiyou Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  UC593516  Festuca idahoensis E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1962 Siskiyou about 2 mi s Sheep Rock (on highway from Bray to Weed, n slope of Mt. Shasta); Mt. Shasta 1249 Comment
  CAS-BOT-BC278882  Festuca occidentalis K. T. Stillman 1976-7-7 161 Siskiyou Marble Mountain Wilderness Area 1981 Comment
  HSC19418  Festuca occidentalis J. O. Sawyer 1969-7-26 1576 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  HSC71185  Festuca occidentalis M. A. Baker 1980-6-20 2217 Siskiyou Near Bald Mtn. 1036 Comment
  UC618987  Festuca pratensis H. S. Yates 1936-6-21 5866 Siskiyou 6 mi n Gazelle; Yreka Quad. 792 Comment
  CHSC79931  Festuca roemeri var. klamathensis Barbara L. Wilson 1996-6-2 8127 Siskiyou Klamath National Forest; road cut where old highway intersects modern one, on Highway 3, 6.7 miles by road SW of the Yreka city limits (road marker at site says 003/SIS/40.00). 1127 Comment
  UCD66368  Festuca rubra Geo. D. Butler 1909-6-13 829 Siskiyou Moffitt Creek. Comment
  HSC69499  Fragaria vesca John Palmer 1980-8-13 763 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  HSC69501  Fragaria virginiana J. O. Sawyer, J. Cole 1980-7-20 3740 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  CAS-BOT-BC447516  Fragaria virginiana var. platypetala Geo. D. Butler 1910-5-10 1315 Siskiyou Goosenest foothills 1524 Comment
  SEINET7417489 Image available Frangula californica A. A. Heller 1916-1 12490 Siskiyou E side of Mount Eddy Comment
  CAS-BOT-BC55716  Frangula rubra subsp. obtusissima Wm. F. Herrin 1920-8-25 s.n. Siskiyou Mt. Eddy Comment
  SEINET10495780  Frasera albicaulis David B. Dunn, Billy Joe Cox 1971-6-9 Dunn 17939 Siskiyou 9 mi N of Weed, on US Hwy 97, at Whitney Creek. Sw-facing slope; volcanic (pumice) some sedimentary loamy soil; assoc. with Pinus ponderosa, Artmisia, Bromus, and Arctostaphylos. 1250 Comment
  CAS-BOT-BC130175  Fritillaria affinis Elmer I. Applegate 1932-4-16 7064 Siskiyou Between Hamburg and Seiad Valley, Klamath River Comment
  SBBG994  Fritillaria atropurpurea H. and M. Dearing 1939-6-28 2185 Siskiyou Wagon Camp, Mt Shasta 1828 Comment
  CAS-BOT-BC502837  Fritillaria atropurpurea Milo S. Baker 1933-4-22 7425 Siskiyou Pacific Highway between Shasta and Shasta Springs Comment
  HSC30638  Fritillaria atropurpurea Frederick W. Oettinger 1969-7-9 943 Siskiyou Marble Mtn. Wilderness Area, NW of Upper English Lake 1799 Comment
  CAS-BOT-BC506207  Fritillaria pudica Geo. D. Butler 1910-5-1 1264 Siskiyou Humbug Mountain Comment
  HSC90036  Fritillaria pudica Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-4 32 Siskiyou E side of Hwy. 3, 8 mi. N of Scott River Ranger Station 1159 Comment
  CAS-BOT-BC504472  Fritillaria recurva John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53391 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on raod to Fort Jones 1249 Comment
  SEINET8480257  Fritillaria recurva G. D. Butler 1910-4-17 1191 Siskiyou Near Yreka. Comment
  HSC403  Galium bifolium William J. Ferlatte 1967-7-9 698 Siskiyou Kidd Creek Trail 1982 Comment
  CHSC71603  Galium bolanderi Vernon Oswald; Lowell Ahart 1998-8-3 9412 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 3.5 mi southeast of Gazelle-Callahan Rd. 1493 Comment
  JEPS25705  Galium bolanderi P. C. Hutchison 1961-5-22 2039 Siskiyou on Hwy 299 2.7 mi n Clear Creek (w side of river 5.7 mi s of Happy Camp); Klamath River Comment
  POM68839  Galium bolanderi Geo. D. Butler 1909-7-15 996 Siskiyou Russian Creek. 1829 Comment
  UC722297  Galium bolanderi C. L. Hitchcock and J. S. Martin 1939-7-7 5298 Siskiyou ca 15 mi n Happy Camp (on Happy Camp-Takilma Hwy) 914 Comment
  HSC70606  Galium glabrescens J. O. Sawyer, R. J. Cole 1981-7-2 4146 Siskiyou Near Scott Mtn. Campground 1585 Comment
  UC220540  Galium grayanum H. E. Brown Jun 11 1897-Jun 16 1897 435 Siskiyou n side Mt. Shasta 1524 Comment
  UCD121766  Galium grayanum J. M. Tucker; L. K. Mann and Sandra L. Holloway 1963-8-18 3755 Siskiyou Southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area. 2133 Comment
  CDA42209  Galium tricornutum D. H. Shaw 1972-6-8 s.n. Siskiyou Airport Road, Montague. 0 Comment
  JEPS6561  Galium trifidum var. pacificum Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson Region of the Upper Sacramento Comment
  HSC19300  Galium triflorum J. O. Sawyer 1969-7-23 1449 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  POM210648  Galium triflorum Louis C. Wheeler 1934-7-2 2836 Siskiyou Deer Creek. Sterling Mtn. Siskiyou Mtns. 1585 Comment
  HSC69745  Garrya buxifolia John Palmer 1980-7-23 571 Siskiyou Past Elbow Springs at end of USFS Rd. 15N19 1220 Comment
  CAS-BOT-BC182226  Garrya fremontii Doris K. Kildale 1928-8-19 6528 Siskiyou trail from English Lake to Hancock Lake - trail to Marble [?] Mt. Comment
  JEPS66736  Garrya fremontii W. L. Jepson 1894-8-9 14157 Siskiyou Shasta Springs Comment
  RSA138231  Garrya fremontii Percy C. Everett, E. K. Balls 1959-10-24 23947 Siskiyou Forks of Salmon, on road from Sawyers Bar to Somesbar 381 Comment
  RSA300516  Garrya fremontii John Dourley, Walter Wisura 1982-10-17 3879 Siskiyou Mill Creek Ridge, ca. 18 mi N of Happy Camp, along old road up Indian Creek. 1524 Comment
  RSA392397  Garrya fremontii Bonnie C. Templeton 1957-6-21 s.n. Siskiyou About ten miles north of Callahan. Comment
  RSA96943  Garrya fremontii Percy C. Everett, E. K. Balls 1954-10-10 20263 Siskiyou Road from town of Mt. Shasta to Castle Lake, one mile south of turn off to Ney Springs. 1159 Comment
  CHSC30771  Gayophytum diffusum subsp. parviflorum M. S. Taylor; J. Prouty, E. Heinitz 1980-8-18 3258 A Siskiyou Ca. 50 ft e of Hwy 15, ca. 3 mi n of its jct with Hwy 89, ca. 17 mi e of McCloud. Comment
  HSC183  Gayophytum diffusum subsp. parviflorum William J. Ferlatte 1966-8-2 237 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  UC1190234  Gayophytum diffusum subsp. parviflorum Ira L. Wiggins 1955-7-27 13535 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA120944A  Gayophytum diffusum subsp. parviflorum Wagnon 1957-8-11 1700 Siskiyou East slope of Mt. Shasta in meadow ca. 1 mile west of Military Pass Road along road to Brewer Cr. Comment
  JEPS27519  Gayophytum heterozygum W. L. Jepson Jul 17 1902-Jul 22 1902 2102 Siskiyou The Devil's Backbone; w Siskiyou Co. 1828 Comment
  POM258615  Gayophytum heterozygum W. Bridge Cooke 1940-7-12 15350 Siskiyou Mount Shasta: Along the Sisson Southern Trail near the S.S.Tr. spring. 1829 Comment
  POM258617  Gayophytum heterozygum W. Bridge Cooke 1940-7-5 15299 Siskiyou Mount Shasta: along the road between Wagon Camp and Bear Springs. 1524 Comment
  RSA13839  Gayophytum heterozygum Louis C. Wheeler 1934-7-5 2890 Siskiyou Hungry Creek. Siskiyou Mtns. Mt. Diablo Meridian. 1372 Comment
  UC726664  Gayophytum humile A. A. Heller 1916-6-20 12409 Siskiyou Metcalf Ranch Mt. Eddy (ne base of mt.) 1188 Comment
  JEPS27500  Gayophytum ramosissimum W. L. Jepson 1940-6-23 19998 Siskiyou e of Mayten (e side of Little Shasta Valley); Little Shasta Valley 883 Comment
  HSC91291  Gentiana newberryi Jennifer Whipple 1976-9-4 1792 Siskiyou Mt. Eddy, SW of Dobkins Lake along the drainage into the lake 2226 Comment
  CAS-BOT-BC217412  Gentiana plurisetosa Geo. D. Butler 1910-7-9 1709 Siskiyou Shackleford Creek 1219 Comment
  SEINET881860 Image available Gentiana plurisetosa S. K. Harris, C. C. Harris 1939-1 976 Siskiyou Half Moon Meadow, Marble Mt. Primitive Area. 1670 Comment
  SEINET202641  Gentianella amarella Unknown 1954-8-13 4798 Siskiyou 0.1 mile north of summit of divide west of Scott Mountain, along road from Callahan to Carrville and Trinity Center, just north of Trinity-Siskiyou County line. 1615 Comment
  CAS-BOT-BC94968  Gentianopsis simplex R. C. Wenk 2008-8-31 990 Siskiyou South Fork of Salmon River, Yellow Rose Mine above Big Flat Meadow 1981 Comment
  UC1495353  Gentianopsis simplex Robert T. Clausen and Harold Trapido 1940-7-26 4954 Siskiyou s. side Mt. Shasta (Wagon Camp); Southern Cascade Mts., , Wagon Camp 1737 Comment
  UC163809  Geranium viscosissimum Geo. D. Butler 1910-6-6 1458 Siskiyou Quartz Valley Comment
  RSA105502  Gilia capitata G. D. Barbe 1955-6-28 026 Siskiyou 1.5 miles north of Callahan 1006 Comment
  JEPS69515  Gilia capitata subsp. capitata Geo. D. Butler 1909-5-10 741 Siskiyou near Yreka; near Yreka Comment
  UC879897  Gilia capitata subsp. capitata Alice Eastwood 1912-7-17 1165 Siskiyou Sisson Comment
  HSC22306  Glyceria elata J. O. Sawyer 1969-8-4 1792 Siskiyou Along C.C.C. road 1341 Comment
  HSC26894  Glyceria elata J. P. Smith, J. O. Sawyer 1971-9-17 4788 Siskiyou On trail up to Little Duck lake 1829 Comment
  POM198422  Glyceria striata Geo D. Butler 1910-7-14 1780 Siskiyou Shackleford Creek. 1220 Comment
  RSA238997  Glyceria striata Frederick W. Oettinger 1969-9-4 1651 Siskiyou Tobacco Lake. Salmon Mountains High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  HSC2133  Glycyrrhiza lepidota C. B. Wolf 1927-8-26 1022 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  UC134940  Gnaphalium palustre E. B. Copeland 1903-7-2 3533 Siskiyou Klamathon Pacific Coast, Klamathon Comment
  UC637148  Gnaphalium palustre Edward Lee 1934-8-15 1136 Siskiyou summit of road between Waldo (Oregon) and Happy Camp; Klamath National Forest, Indian Creek watershed 1615 Comment
  CDA6018  Gnaphalium palustre T. R. Haig, F. D. Horn 1979-9-19 Siskiyou Sharp Mountain Reservoir southeast of Mount Hebron. 0 Comment
  POM56236  Gnaphalium palustre Geo D. Butler 1910-6-12 1560 Siskiyou Yreka Creek. Comment
  SEINET8770785 Image available Gnaphalium palustre G. D. Bulter 1910-6-12 1560 Siskiyou Yreka Creek Comment
  UC4511  Goodyera oblongifolia W. H. Brewer 1862-9-16 1414 Siskiyou on Mount Shasta Mount Shasta Comment
  HSC42889  Goodyera oblongifolia K. T. Stillman 1976-8-15 403 Siskiyou Along Specimen Creek 915 Comment
  JEPS77492  Gratiola ebracteata Susan Horner 1978-6-30 401 Siskiyou road between 40N05 and Sand Flat Well about 4 mi sse Hambone Comment
  RSA59842  Grayia spinosa E. K. Balls 1950-5-17 14726 Siskiyou SW corner of Tule Lake, (State Game Refuge). 1265 Comment
  CAS-BOT-BC314631  Grindelia hirsutula Copeland 1903-8-14 3884 Siskiyou Sisson Comment
  SEINET1911810  Hackelia R. Tofsrud, J. M. Tucker 1948-1 1783 Siskiyou Openings in Yellow Pine woods, ca. 1.5 miles northwest of McCloud, California Comment
  HSC38812  Hackelia bella J. O. Sawyer 1970-7-4 2326 Siskiyou At Cedar Flat Cabin 1402 Comment
  RSA211250  Hackelia bella W. J. Ferlatte 1966-7-7 211 Siskiyou A flora of the Trinity Alps of northern California. Northwest side of Caribou Mountain. 1829 Comment
  CDA36166  Hackelia californica C. Pirosko s.n. Siskiyou Highway 89 north before McCloud. 0 Comment
  UC1408781  Hackelia micrantha Frederick W. Oettinger 1968-9-2 667 Siskiyou at base of cliffs sw of Upper English Lake (High Lake Basins in the Vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1874 Comment
  UC54749  Hackelia micrantha Harley P. Chandler June, 1901 1604 Siskiyou near Marble Mountain; Northern Coast Ranges 1828 Comment
  HSC61917  Hackelia micrantha Ruby Van Deventer 1937-7-24 Siskiyou Poker Flat 1585 Comment
  RSA183748  Hackelia micrantha Gilbert Muth 1965-8-17 309 Siskiyou Marble Valley, Marbles Mts. Comment
  UC637164  Hackelia setosa Edward Lee 1934-8-14 1121 Siskiyou w slope of Little Grayback 1706 Comment
  RSA167325  Hackelia setosa Joseph P. Tracy 1951-6-16 19470 Siskiyou Near Oregon-California State Line, on the Takilma-Happy Camp Road. Comment
  HSC44487  Hastingsia alba K. Irwin 1977-5-22 387 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  CAS-BOT-BC504607  Hastingsia alba J. H. Thomas; H. A. Thomas 1954-7-25 4539 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  CAS-BOT-BC504615  Hastingsia alba A. A. Heller 1919-6-25 13268 Siskiyou Compton's prairie, north base of Mt. Eddy 1158 Comment
  CAS-BOT-BC506195  Hastingsia alba David D. Keck 1949-7-20 6364 Siskiyou Meadow at Scott Mountain Summit at Trinity County line 1633 Comment
  CAS-BOT-BC508654  Hastingsia alba John Thomas Howell 1939-8-3 14985 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  RSA237954  Hastingsia alba Frederick W. Oettinger 1968-8-17 561 Siskiyou Pine Lake Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area 1890 Comment
  CAS-BOT-BC302450  Hazardia whitneyi var. discoidea Gilbert Muth 1965-8-4 310 Siskiyou Marble Valley Comment
  CAS-BOT-BC302458  Hazardia whitneyi var. discoidea Annie M. Alexander; Louise Kellogg 1949-7-29 5899 Siskiyou Trail to Hidden Lake, above Sky High Lake. Sky High Valley, Marble Mountains 1767 Comment
  HSC26109  Hazardia whitneyi var. discoidea J. P. Smith, J. O. Sawyer 1972-9-12 Siskiyou Scott Mtn., slopes E of Big Carmen Lake 1982 Comment
  CAS-BOT-BC306353  Helenium L. E. Smith 1913-6-29 435 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC306739  Helenium bigelovii A. A. Heller 1914-8-28 11733 Siskiyou East side of Mt. Eddy 2133 Comment
  CAS-BOT-BC306747  Helenium bigelovii John Thomas Howell 1937-7-23 13344 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC76945  Helenium bigelovii K. T. Stillman 1976-9-9 479 Siskiyou Marble Mountain Wilderness Area. Big Rock Camp- Elk Valley Trail 1921 Comment
  JEPS84051  Helenium bigelovii L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6363 Siskiyou ca 0.5 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  UC246776  Helenium bigelovii H. E. Brown Jun 11 1897-Jun 16 1897 421 Siskiyou n side Mt. Shasta 1524 Comment
  CAS-BOT-BC309577  Helenium puberulum Carl B. Wolf 1927-8-26 1098 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  HSC82585  Helianthella californica Thomas W. Nelson, Jane P. Nelson 1979-5-26 4710 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  CAS-BOT-BC314838  Helianthella californica var. shastensis A. A. Heller 1916-7-22 12489 Siskiyou East side of Mt. Eddy Comment
  CAS-BOT-BC305471  Helianthus annuus L. E. Smith 1914-9-9 756 Siskiyou Sisson Comment
  CAS-BOT-BC305569  Helianthus bolanderi Louis C. Wheeler 1934-10-6 3311 Siskiyou Shasta Valley 2 mi. SE Yreka 853 Comment
  CAS-BOT-BC305575  Helianthus bolanderi L. R. Abrams 1922-8-6 9910 Siskiyou Between Summit and Hornbrook Comment
  RSA15801  Helianthus bolanderi C. B. Wolf 1927-8-26 1055 Siskiyou Klamath River. 3 miles below Gottenville P.O. Comment
  CAS-BOT-BC313464  Hemizonella minima J. H. Thomas 1954-5-13 4128 Siskiyou Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, Salmon Mountains, Klamath National Forest 1066 Comment
  POM210916  Hemizonia fitchii L. C. Wheeler 1934-10-6 3309 Siskiyou Shasta Valley, 2 mi. SE of Yreka. 854 Comment
  RSA44880  Herniaria hirsuta subsp. cinerea J. C. Roos 1948-9-1 3937 Siskiyou Fort Jones. Comment
  UC853277  Herniaria hirsuta subsp. hirsuta Louis C. Wheeler 1935-6-15 3588 Siskiyou 3 mi s Greenview (Scott Valley); Scott Valley 883 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
  UC642530  Hesperolinon micranthum W. B. Cooke 1939-7-14 13686 Siskiyou Sisson Southern Trail Mount Shasta 1371 Comment
  SEINET10972516  Heterocodon rariflorum Oettinger 1966-8-18 OETTINGER 1427 Siskiyou VIC. ENGLISH PEAK, MARBLE MTN WILDERNESS, N OF HORSE RANGE LAKE OUTLET ON MOSSY DRIPPING ROCKS Comment
  CAS-BOT-BC420703  Heuchera merriamii John Thomas Howell 1937-7-24 13400 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  UC705562  Heuchera merriamii Marion Ownbey, Fred G. Meyer 1940-7-6 2203 Siskiyou w side Cayenne Ridge (at summit); Marble Mountain Comment
  RSA0063198  Heuchera merriamii Louis C. Wheeler 1934-8-9 3079 Siskiyou Head of Jaynes Canyon. Siskiyou Mtns. 1921 Comment
  HSC42969  Heuchera micrantha J. O. Sawyer, Ken Stillman 1976-5-29 2747 Siskiyou Along Specimen Creek 1433 Comment
  HSC58951  Heuchera rubescens Gilbert Muth 1975-7-31 4649 Siskiyou Near Kangaroo Mtn., close to the town of Seiad Valley 1756 Comment
  UC1483516  Hieracium albiflorum John Palmer 1980-8-13 767 Siskiyou near F.S. Rd. 47N44 (from Beaver Creek Road); Klamath National Forest, Condry Mtn. Quad., Dead Cow Creek 1615 Comment
  RSA183734  Hieracium albiflorum Gilbert Muth 1965-8-11 204 Siskiyou Marble Valley. Marble Mtns. Comment
  UC897817  Hieracium nudicaule Alice Eastwood 1921-7-29 10976 Siskiyou on road to Medicine Lake; Bear Spring Comment
  UCD77770  Hieracium nudicaule Robert E. Preston 2001-7-21 1701 Siskiyou Klamath National Forest, near south end of Antelope Creek Meadow, 1633 Comment
  HSC58952  Holodiscus discolor Marvin Butler 1971-7-29 240 Siskiyou Near Copper Camp, close to the town of Cave Junction 1464 Comment
  CAS-BOT-BC152370  Holodiscus discolor var. discolor D. H. Norris 1970-5-23 12240 B Siskiyou Along Klamath River at Ishi Pishi Bridge near Somes Bar. Comment
  CAS-BOT-BC152378  Holodiscus discolor var. discolor Doris K. Kildale 1929-8-24 9071 Siskiyou Rattlesnake Meadow, near Preston Peak 1524 Comment
  CAS-BOT-BC152381  Holodiscus discolor var. discolor Geo. D. Butler 1910-7-6 1645 Siskiyou Shackleford Creek 914 Comment
  CAS-BOT-BC152383  Holodiscus discolor var. discolor John Thomas Howell 1937-7-29 13654 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  JEPS117844  Holodiscus discolor var. glabrescens J. Greenhouse with Eric White, John Game 2010-8-16 5132 Siskiyou Shastina, ridge approached from S side of Diller Canyon Shasta National Forest 2813 Comment
  CHSC69087  Holodiscus microphyllus var. glabrescens Vernon Oswald; Lowell Ahart 1997-7-28 8773 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi south of Medicine Lake. 1365 Comment
  CAS-BOT-BC388567  Holosteum umbellatum John Thomas Howell 1964-5-11 40699 Siskiyou Grenada 822 Comment
  UCD98179  Holosteum umbellatum subsp. umbellatum John Thomas Howell 1964-5-11 40699 Siskiyou Grenada. 822 Comment
  CAS-BOT-BC285077  Hordeum marinum subsp. gussoneanum Louis C. Wheeler 1934-6-16 2721 Siskiyou Ditch Creek, Siskiyou Mts. 822 Comment
  CAS-BOT-BC284768  Hordeum murinum subsp. glaucum Dorothy Parker 1949-5-22 76 Siskiyou At Etna, Scott Valley 896 Comment
  JEPS44540  Horkelia daucifolia Geo. D. Butler 1909-5-8 713 Siskiyou e Yreka (Shasta Valley); Shasta Valley Comment
  CAS-BOT-BC143939  Horkelia daucifolia William A. Dayton 1913-6-16 274 Siskiyou On summit of Scott Mt. on Callahan - Gazelle stage road, Shasta National Forest 1676 Comment
  CAS-BOT-BC143947  Horkelia daucifolia H. D. Ripley; R. C. Barneby 1948-7-5 9632 Siskiyou 2 mi. SW. of Yreka 853 Comment
  JEPS95044  Horkelia fusca subsp. parviflora Vernon Oswald and Lowell Ahart 1997-7-28 8804 Siskiyou Forest Rte. 15 ca. 1 mi. s. Harris Spring 1463 Comment
  CAS-BOT-BC536224  Horkelia fusca var. parviflora Ella Dales Cantelow 1939-6-10 2587 Siskiyou 17.6 miles SE of McCloud on road to Burney Comment
  CAS-BOT-BC514290  Horkelia fusca var. pseudocapitata A. A. Heller 1938-7-12 15258 Siskiyou Near the summit of Deer Mountain on US Hwy 97 1767 Comment
  SD125937  Horkelia tridentata Steve Morgan 1987-7-28 Siskiyou McGinnis Springs, 5 mi. NW of McCloud, Shasta-Trinity National Forest, S of Mt. Shasta 1768 Comment
  UC545659  Horkelia tridentata subsp. tridentata Alice Eastwood and John Thomas Howell 1934-4-20 Siskiyou Weed Comment
  CAS-BOT-BC539436  Horkelia tridentata var. tridentata Alice Eastwood; John Thomas Howell 1934-4-20 1797 Siskiyou Weed 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-BC201136  Hosackia crassifolia Wm. Bridge Cooke 1940-6-7 15090 Siskiyou Along the Pacific Highway between Black Butte and Mount Shasta City Comment
  HSC4898  Hosackia oblongifolia var. oblongifolia J. O. Sawyer 1968-7-10 518 Siskiyou S side of Sugar Creek. 1616 Comment
  SBBG30555  Hosackia oblongifolia var. oblongifolia D. Myrick 1968-6-29 2057 Siskiyou Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  CAS-BOT-BC312577  Hulsea nana Peter H. Raven 1956-9-4 10425 Siskiyou Summit of Mt. Eddy 2758 Comment
  CHSC98745  Hulsea nana L. P. Janeway; B. Castro 2007-7-29 9137 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2067 Comment
  RSA167327  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1951-6-16 19496 Siskiyou Summit of Siskiyou Mountains, crossing of the Takilma-Happy Camp Road Comment
  HSC61784  Hydrophyllum occidentale Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  RSA78829  Hydrophyllum occidentale P. A. Munz 1952-7-2 17907 Siskiyou Exposed stony ridge west of Baldy Mountain about 6 air-line miles west of Happy Camp, Siskiyou Mountains. 1784 Comment
  JEPS35539  Hymenoxys hoopesii Geo. D. Butler 1908-8-2 318 Siskiyou Log Lake Shackelford Creek, Log Lake 1524 Comment
  SD46777  Hymenoxys lemmonii E. K. Balls, L. W. Lenz 1956-6-18 21723 Siskiyou 5.7 miles southeast of Gazelle, U. S. Highway 99, Yreka to Dunsmiur. 885 Comment
  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
  CAS-BOT-BC400988  Hypericum anagalloides John Thomas Howell 1939-8-5 15083 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC401287  Hypericum perforatum H. A. Thomas; J. H. Thomas 1954-7-21 4386 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek 975 Comment
  HSC27647  Hypericum perforatum Carl W. Mize 1972-6-8 3 Siskiyou Along main trail 335 Comment
  CAS-BOT-BC401471  Hypericum scouleri Geo. D. Butler 1910-7-3 1627 Siskiyou Goosenest foothills 1219 Comment
  CAS-BOT-BC206829  Iliamna bakeri Carl B. Wolf 1934-7-6 6029 Siskiyou Mt. Shasta, along Snow Line Road, 3 3/10 mi. from Mt. Shasta City 1524 Comment
  LA40958  Iliamna bakeri Lincoln Constance; 1940-6-28 15193 Siskiyou Memorial Highway, Mount Shasta 1523 Comment
  SD42408  Iliamna bakeri Carl B. Wolf 1941-7-26 11073 Siskiyou 10.3 miles northeast of Weed along U. S. Highway 97. 914 Comment
  HSC58931  Ipomopsis aggregata Marvin Butler 1971-8-13 126 Siskiyou Near Cyclone Gap, close to the town of Cave Junction 1555 Comment
  SD76181  Ipomopsis aggregata Helen V. Witham unknown 598 Siskiyou McBride Springs Road, Mt. Shasta. 1500 Comment
  UC455676  Ipomopsis aggregata I. J. Condit 1911-7-15 Siskiyou McCloud; Toll Rd to Shasta Springs Comment
  JEPS799  Ipomopsis aggregata subsp. bridgesii W. L. Jepson 1940-6-27 20050 Siskiyou e slope Mt. Shasta 1676 Comment
  JEPS87632  Ipomopsis aggregata subsp. formosissima Vernon H. Oswald and Lowell Ahart 1994-8-10 6463 Siskiyou ca. 5 mi. (air) n.w. McCloud (FS 31 0.6 mi. e. of Ski Park Hwy. (FS 88)) 1584 Comment
  POM75574  Ipomopsis aggregata subsp. formosissima Geo D. Butler 1910-7-12 1744 Siskiyou Shackleford Creek. 1220 Comment
  RSA120872  Ipomopsis aggregata subsp. formosissima H. K. Wagnon 1957-8-11 s.n. Siskiyou East slope of Mt. Shasta, along Brewer Cr., 6 mi. W of Military Pass Rd. Comment
  JEPS77493  Ipomopsis congesta Susan Horner 1978-6-30 411 Siskiyou ca 4 mi se Hambone (rd betw 40N05 and San Flat Well) 1280 Comment
  UC1034647  Ipomopsis congesta Milo S. Baker 1955-6-26 13081 Siskiyou ca 4 mi s Gazelle (Hwy 99); Klamath Mtns 914 Comment
  RSA136346  Iris tenuissima Lee W. Lenz 1953-5-17 18313 Siskiyou Salmon River, 1 1/4 mi. above junction with Klamath River 177 Comment
  UCD138819  Iris tenuissima L. W. Lenz 1953-5-17 18313 Siskiyou along Salmon River 1.25 mile above junciton with Klamath. 176 Comment
  CHSC96007  Isatis tinctoria L. P. Janeway 2006-7-3 8777 Siskiyou Klamath Ranges. Salmon Mountains; along the main road across steep slope north above upper Carter Meadows. 1847 Comment
  CAS-BOT-BC88666  Isatis tinctoria William Bridge Cooke 1940-6-20 15150 Siskiyou Along the Pacific Highway in the Klamath River gorge. 609 Comment
  CDA3768  Isatis tinctoria Ball 1935-6-21 Siskiyou Scott Valley. 0 Comment
  RSA105398  Isatis tinctoria G. D. Barbe 1955-7-5 111 Siskiyou 4.7 miles west of Greenview in Quartz Valley. 915 Comment
  RSA184739  Isatis tinctoria Gilbert Muth 1966-7-5 349 Siskiyou Lovers Camp, Marble Valley, Marble Mtns. 1250 Comment
  SEINET13762155 Image available Isatis tinctoria T. C. Fuller 1960-5-26 4344 Siskiyou Roadside and hillslope, Greenhorn Creek, 1.5 mi. W. Yreka Comment
  UCD115196  Isatis tinctoria Collector unknown 1950-1 s.n. Siskiyou location unknown. Comment
  JEPS84112  Isoetes bolanderi L. R. Heckard with S. D'Alcamo, and J. Hickman 1986-7-16 6399 Siskiyou ca 5.5 mi n Seiad Valley town (se of Red Butte, Lily Pad Lake); Lily Pad Lake 1740 Comment
  RSA608670  Isoetes occidentalis L. C. Wheeler 1963-9-11 8385 Siskiyou Siskiyou Mountains: Dillon Creek, 3/4 mile NE of Sawtooth Mountain. 1616 Comment
  RSA293203  Ivesia pickeringii Kevin Sawyer, John Sawyer, Jane Cole, J. P. Smith 1976-9-5 8970 Siskiyou 2.5 miles north of Siskiyou-Trinity Co. line on State Route 3. 1524 Comment
  CAS-BOT-BC110025  Juncus Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mount Eddy. 1706 Comment
  HSC93820  Juncus balticus subsp. ater Jennifer Whipple 1976-7-2 1250 Siskiyou Near edge of Dobkins Lake 2073 Comment
  POM312831  Juncus balticus subsp. ater Malcolm A. Nobs, Calvin McMillan 1949-6-17 805 Siskiyou Grass Lake, Highway 97. Comment
  HSC67956  Juncus bolanderi Steve Selva, J. P. Smith 1970-7-15 4344 Siskiyou Klamath National Forest, rd. to Happy Camp 732 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
  RSA368220  Juncus effusus subsp. pacificus Henry M. Pollard 1948-8-11 s.n. Siskiyou Irving Creek, near Somes Bar. Comment
  HSC39873  Juncus ensifolius J. O. Sawyer 1969-7-23 1173 Siskiyou Near Horse Range Creek 1341 Comment
  HSC73220  Juncus ensifolius Gail Newton 1980-6-20 504 Siskiyou Near Bald Mtn. 1097 Comment
  JEPS24611  Juncus ensifolius Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6764 Siskiyou in the 1.5 mi stretch between Shasta Retreat (at n outskirts of Dunsmuir) to Mossbrae Falls and Shasta Springs (along S.P. (Shasta Route) railway grade); Upper Sacramento River Canyon 731 Comment
  UC421842  Juncus ensifolius Geo. B. Grant Sep 1902 5229 Siskiyou Horse Camp Mount Shasta 2438 Comment
  UC1265481  Juncus hemiendytus var. hemiendytus Frederick W. Oettinger and R. F. Thorne 1968-8-7 1266 Siskiyou just w Upper English Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1767 Comment
  HSC30708  Juncus hemiendytus var. hemiendytus Frederick W. Oettinger 1969-8-15 1386 Siskiyou Marble Mtn. Wilderness Area, inlet of Upper English Lake 1768 Comment
  UC1106413  Juncus mertensianus Peter Kamb 1949-8-25 1486 Siskiyou above Horse Camp (sw slope of Mt. Shasta); Mt. Shasta 2621 Comment
  HSC69355  Juncus nevadensis var. nevadensis Maralyn A. Renner 1980-8-21 2565 Siskiyou Kidd Creek 2043 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
  HSC39812  Juncus orthophyllus J. O. Sawyer 1969-8-4 1838 Siskiyou Above Sugar Lake 2134 Comment
  JEPS94676  Juncus tiehmii Vernon H. Oswald and Lowell Ahart 1998-7-21 9362 Siskiyou on Old State Hwy 0.8 mi e Tennant Road (ne of Weed, e of Grass Lake, and w of Bray) 1417 Comment
  POM110775  Juncus trilocularis Geo D. Butler 1910-5-28 1422 Siskiyou Shasta Valley. Comment
  SEINET10796223 Image available Juncus xiphioides Cyrus G. Pringle 1882-9-5 Pringle s.n. Siskiyou Shore of Castle Lake. Comment
  RSA129450  Juniperus communis var. montana H. A. Jensen 1933-10-5 360 Siskiyou Slope of Shastina; Shasta National Forest 2591 Comment
  HSC22408  Juniperus communis var. saxatilis J. O. Sawyer 1969-7-9 1245 Siskiyou W facing slope above Bingham Lake 2317 Comment
  CAS-BOT-BC81233  Juniperus occidentalis Doris Overman 1919-9-1 s.n. Siskiyou Yreka Comment
  CDA714  Juniperus occidentalis G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2633 Siskiyou Roadside at edge of serpentine ridge 16 km south of Fort Jones on Scott Valley East Side Road. Comment
  UC202176  Juniperus occidentalis Geo. D. Butler 1909-12-10 1112 Siskiyou Klamath Hills Comment
  SEINET10826625  Juniperus occidentalis J. William Thompson 1936-7-8 Thompson 13156 Siskiyou Lava slopes of Lava Beds, National Monument. Comment
  UC1034640  Juniperus occidentalis Milo S. Baker 1955-6-26 13071 Siskiyou 2 mi s Gazelle (Hwy. 99) 914 Comment
  POM21780  Juniperus occidentalis var. occidentalis Alice Eastwood 1922-10-23 11554 Siskiyou Yreka. Comment
  POM120195  Juniperus occidentalis var. occidentalis Geo D. Butler 1909-12-10 1108 Siskiyou Klamath hills Comment
  SEINET11058377  Juniperus occidentalis var. occidentalis D. Charlet, T. Charlet 1996-11-25 2346 Siskiyou Siskiyou Mountains., Klamath River, S slope above and N of river. 585 Comment
  SEINET10612645  Juniperus sibirica Edwin B. Copel 1903-10-6 Copeland 3782 Siskiyou Mt. Eddy 2250 Comment
  CAS-BOT-BC56354  Kalmia microphylla subsp. microphylla W. R. Dudley 1901-8-18 s.n. Siskiyou Jackson Lake, Salmon Mts. 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
  CAS-BOT-BC246185  Keckiella lemmonii David D. Keck 1927-8-17 1265 Siskiyou West flank of Mt. Shasta, 4 1/2 miles from Mt. Shasta City on Horse Camp Trail 1828 Comment
  RSA238771  Keckiella lemmonii Frederick W. Oettinger, Robert F. Thorne 1969-8-5 1211 Siskiyou Hot area on English Lake Trail above Willow Spring. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1707 Comment
  POM59665  Kelloggia galioides E. B. Copeland 1903-7-17 3516 Siskiyou Mt. Shasta. Comment
  UC917333  Kelloggia galioides R. Tofsrud and J. M. Tucker 1948-8-4 1785 Siskiyou ca 1.5 mi nw McCloud Comment
  RSA0076567  Kopsiopsis strobilacea Marion Ownbey, F. G. Meyer 1940-7-7 2220 Siskiyou Summit of Cayenne Ridge, Marble Mountain. Comment
  HSC41034  Kyhosia bolanderi J. O. Sawyer 1969-8-5 1965 Siskiyou Ca. 1/2 mi. up Sugar Creek Trail 1646 Comment
  CAS-BOT-BC340402  Lactuca Alice Eastwood 1912-8-28 1943 Siskiyou Sisson Comment
  HSC26752  Lactuca serriola J. P. Smith, J. O. Sawyer 1971-9-18 4836 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  CAS-BOT-BC341700  Lagophylla ramosissima Palmer Stockwell 1934-7-16 77 Siskiyou Weed Comment
  JEPS24813  Lagophylla ramosissima Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6824 Siskiyou 7 mi e of Callahan 1127 Comment
  UCD133625  Lagophylla ramosissima P. B. Kennedy 1922-8-29 s.n. Siskiyou Scott Valley. Comment
  UC1185308  Lathyrus brownii H. E. Brown 1897-6-10 391 Siskiyou near Sisson; ; near Sisson, Siskiyou Co. 1083 Comment
  UC585091  Lathyrus brownii E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 1983 Siskiyou about 1.5 mi w Mt. Shasta City (above Sulloway Creek, spur of Rainbow Ridge); Rainbow Ridge 1188 Comment
  CAS-BOT-BC204981  Lathyrus jepsonii var. californicus Alice Eastwood 1912-7-21 1279 Siskiyou Sisson Comment
  CDA17136  Lathyrus nevadensis G. F. Hrusa 2001-6-6 15850 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  RSA68869  Lathyrus nevadensis subsp. lanceolatus A. E. Culbertson 1943-7-1 87 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. within 10 air miles of its headwaters to the west. Comment
  CHSC91370  Lemna minuta Lowell Ahart; John Dittes 2005-6-10 12110 Siskiyou At intake pipe, at 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
  RSA715934  Lemna minuta Lowell Ahart, John Dittes 2005-6-10 12110 Siskiyou At the pump house along the Shasta River, about 1.9 miles (air) S of Hwy 99/97 Cutoff, about 6 miles (air) ESE of Granada. 777 Comment
  CAS-BOT-BC89160  Lepidium draba A. A. Heller 1905-6-9 8006 Siskiyou Yreka. Comment
  JEPS53718  Lepidium perfoliatum W. L. Jepson 1940-6-23 19985 Siskiyou e of Mayten (e side of Little Shasta Valley); Little Shasta Valley 883 Comment
  UC1126705  Lepidium perfoliatum L. Whitney 1934-6-23 4 Siskiyou Tennant Dorris Quad., Antelope Creek 1463 Comment
  SEINET14160907  Leptosiphon bicolor G. D. Butler 1910-4-25 1243 Siskiyou Oro Fino Comment
  POM229951  Leptosiphon bolanderi L. C. Wheeler 1935-5-4 3455 Siskiyou Siskiyou Mts. 854 Comment
  RSA429772  Lesquerella occidentalis Christopher Davidson 1975-6-5 2696 Siskiyou 0.7 mile on dirt road departing NE directly from Scott Mtn Summit. 1738 Comment
  UC735039  Lesquerella occidentalis subsp. occidentalis Lincoln Constance and Herbert L. Mason with J. F. Davidson and J. M. Tucker 1947-5-17 3199 Siskiyou summit of n.w. spur of Scott Mt. 1828 Comment
  HSC95468  Lessingia nemaclada G. Fred Hrusa 1997-9-18 14103 Siskiyou At intersection of Hwy. 3 and Callahan/ Gazelle Rd. 1000 Comment
  CAS-BOT-BC341902  Lessingia nemaclada Elmer I. Applegate 1923-9-7 3948 Siskiyou Doggett Creek, Klamath River canyon Comment
  RSA15802  Lessingia nemaclada Carl B. Wolf 1927-8-26 1058 Siskiyou Klamath River, 3 miles below Gottville Comment
  CAS-BOT-BC58262  Leucothoe davisiae Ira L. Wiggins 1955-7-27 13563 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area. 2042 Comment
  HSC96499  Leucothoe davisiae Gordon Leppig 1998-8-13 1004 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  POM117376  Lewisia cotyledon Geo. D. Butler 1909-7-15 960 Siskiyou Russian Creek. 1829 Comment
  HSC27348  Lewisia leeana J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5698 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  JEPS27804  Lewisia leeana Lauramay T. Dempster and Clare Hardham 1961-7-1 1820 -A Siskiyou watershed between Horse Creek and Applegate River drianage (e slope, just below the the peak-summit); Siskiyou Mountains, White Mountain 1950 Comment
  RSA756241  Lewisia leeana Barbara Ertter 1990-7-16 9372 Siskiyou North side of ridge west of Parks Creek trailhead (Pacific Crest Trial crossing of Route 17); about 8 air mile southwest of Weed. 2195 Comment
  CAS-BOT-BC444582  Lewisia triphylla Wm. Bridge Cooke 1938-9-8 11657 Siskiyou Mount Shasta. Squaw Creek Meadows. Comment
  RSA591654  Leymus condensatus L. C. Wheeler 1934-9-22 3292 Siskiyou Walker, Klamath River; Siskiyou Mts. 518 Comment
  HSC61140  Ligusticum californicum Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  HSC67705  Ligusticum californicum John S. Palmer 1980-7-24 605 Siskiyou Elk Hole 1503 Comment
  JEPS83836  Ligusticum grayi Wayne Roderick July 1976 Siskiyou vicinity Cook & Green Pass (near Horse Tail Falls); Siskiyou Mts. 1463 Comment
  UC1619909  Ligusticum grayi Barbara Ertter 1990-7-14 9342 Siskiyou ca. 4 airmiles w. Mt. Shasta City (Wagon Creek on e. side of Mt. Eddy, where several forks join before steep drop); Mt. Eddy, Wagon Creek 1828 Comment
  UC875079  Ligusticum grayi A. A. Heller 1915-8-26 12237 Siskiyou Mt. Eddy 1828 Comment
  CDA38347  Ligusticum grayi Gordon Leppig, Jennifer Kalt 1996-7-9 372 Siskiyou Northern California Peatlands; Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, in cirque west of Little Duck Lake. Comment
  UC454439  Lilium I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake Comment
  UC30112  Lilium bolanderi W. C. Blasdale Jul 1899 1073 Siskiyou Siskiyou Mts. Comment
  HSC22274  Lilium kelleyanum J. O. Sawyer 1969-7-26 1580 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  HSC81563  Lilium kelleyanum Thomas W. Nelson, Jane P. Nelson 1980-7-19 6200 Siskiyou Along USFS Rd. 40N17 1.0 mi. from junction with Callahan-Cecilville Rd. 1585 Comment
  CAS-BOT-BC509376  Lilium kelleyanum Marion Ownbey; Fred G. Meyer 1940-7-6 2200 Siskiyou In spring, Cayenne Ridge, Marble Mountain. Comment
  RSA130325  Lilium kelleyanum Albert M. Vollmer 1949-7-5 11 Siskiyou 7 miles from Callahan on Callahan--Carrville road Comment
  SEINET8263373  Lilium pardalinum Frank Callahan 1990-7-14 Siskiyou south slope of Mt. Shasta, Wagon Camp Meadows below lower McGinnis springs. 1762 Comment
  CAS-BOT-BC132993  Lilium rubescens L. E. Smith 1913-7-4 s.n. Siskiyou North Fork Castle Creek Comment
  LA22088  Lilium washingtonianum W. B. C.; 1939-8-4 13805 Siskiyou Mount Shasta, along the Sisson Southern Trail 1523 Comment
  HSC33339  Lilium washingtonianum subsp. purpurascens William J. Ferlatte 1974-7-25 1583 Siskiyou Yellow Rose Mine 2073 Comment
  HSC36707  Lilium washingtonianum subsp. purpurascens Brent Whiteley 1975-7-1 116 Siskiyou 671 Comment
  RSA184814  Lilium washingtonianum subsp. purpurascens Gilbert Muth 1966-7-29 133 Siskiyou Marble Valley, near marble, Marble Mountain 1793 Comment
  UC164043  Lilium washingtonianum subsp. purpurascens Geo. D. Butler 1908-7-12 1113 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC133108  Lilium washingtonianum subsp. washingtonianum Wayne Roderick 1967-7-28 s.n. Siskiyou Southwest side of Mt. Shasta, type locality 1371 Comment
  JEPS44109  Linanthus ciliatus W. B. and V. G. Cooke 1965-7-12 35179 Siskiyou Bolam Road Mt. Shasta Comment
  UC1299614  Linanthus harknessii Freed W. Hoffman 1951-7-15 4036 Siskiyou w side Kelsey Creek (at Hammond Camp, w Siskiyou County); North Coast Ranges, Marble Mountains 1524 Comment
  SEINET14405890  Linanthus pungens G. D. Butler 1910-7-8 1688 Siskiyou Shackleford Creek Comment
  RSA139035  Linaria dalmatica T. C. Fuller 1960-6-30 4649 Siskiyou Mt. Hebron-Medicine Lake Road, just E/Rock Rock School Rd. Comment
  JEPS82489  Linum lewisii Gilbert Muth 1965-8-6 186 Siskiyou Marble Mountain Wilderness Area, backside trail of Black Mt. Black Mt.; Marble Mountain Wilderness Area, Black Mt. 1981 Comment
  UC1408773  Linum lewisii Frederick W. Oettinger 1968-8-18 569 Siskiyou Salmon Mts, High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness Area, w side of Hancock Lake Hancock Lake; Salmon Mts, Marble Mountain Wilderness Area 1935 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
  UC70413  Lithocarpus densiflorus Milo S. Baker Jul 1899 Siskiyou Shasta Springs Comment
  JEPS46620  Lithocarpus densiflorus Rick Hermann Sep 1900 Siskiyou Slate Creek; Upper Sacramento River Comment
  CAS-BOT-BC36534  Lithocarpus densiflorus var. echinoides Marion Ownbey; Fred G. Meyer 1940-7-3 2163 Siskiyou 7 mi. northwest of McCloud Comment
  POM166637  Lithocarpus densiflorus var. echinoides E. B. Copeland 1903-8-13 3827 Siskiyou Sisson. 1067 Comment
  UC484041  Lithocarpus densiflorus var. echinoides Carl B. Wolf 1930-10-27 Siskiyou Hazelview Summit; Siskiyou Mtns. 742 Comment
  HSC29452  Lithophragma campanulatum Frederick W. Oettinger 1969-7-9 942 Siskiyou Marble Mtn. Wilderness Area, NW of Upper English Lake 1829 Comment
  UC166377  Lithophragma glabrum Geo. D. Butler 1909-4-13 652 Siskiyou near Yreka; near Yreka Comment
  CAS-BOT-BC435632  Lithophragma heterophyllum Gilbert Muth 1966-7-14 385 Siskiyou Slopes above Marble Vally, Marble Gap Trail, Marble Mts. 1813 Comment
  HSC64822  Lithophragma heterophyllum J. P. Smith 1973-5-5 6417 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA468258  Lithophragma parviflorum Christopher Davidson 1975-6-5 2668 Siskiyou 0.8 mi. from gate on special service rd. branching SE of rd from Gazelle to Callahan, ca. 9.3 miles W of Gazelle. Klamath Nat. Forest. 1509 Comment
  RSA44060  Lithospermum ruderale W. Bridge Cooke 1942-7-2 16362 Siskiyou Near Widow Springs, Mt. Shasta. Comment
  UCD66463  Lolium perenne A. A. Heller 1921-7-5 13564 Siskiyou Abrams Lake, near Sisson. Comment
  POM133077  Lomatium dissectum var. dissectum Geo. D. Butler 1909-5-8 746 Siskiyou Yreka Hills. Comment
  UC595106  Lomatium macrocarpum David D. Keck 1938-8-6 4810 Siskiyou at Del Norte Co. line Poker Flat (summit of Siskiyou Mts., 4 mi. s. of Oregon line, on rd. from Waldo to Happy Camp); Siskiyou Mts., Poker Flat 1555 Comment
  HSC34149  Lomatium macrocarpum J. O. Sawyer 1969-7-1 985 Siskiyou Above Paynes Lake Creek 1951 Comment
  RSA452143  Lomatium macrocarpum M. B. Dunkle 1945-1 9341 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  UC21098  Lomatium nudicaule W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Mt. Shasta, Sisson Comment
  SEINET8756631  Lomatium nudicaule D. Butler 1910-5-18 1359 Siskiyou Near Yreka Comment
  POM265882  Lomatium peckianum Lincoln Constance, Reed Rollins 1942-5-14 2918 Siskiyou 1 mile E of Yreka 762 Comment
  UC1552568  Lomatium peckianum William J. Ferlatte and Linda M. Barker 1988-5-19 2112 Siskiyou 5 1/2 mi NW of Weed (0.1 mi N of Edgewood Road on access road to Airport & Freeway Rest Area, E side of frontage road, 100 yds E of Hwy I-5) 893 Comment
  RSA47618  Lonicera ciliosa Roxana S. Ferris, Laura Lorraine 1948-6-12 11731 Siskiyou French Creek Logging Road W of Callahan. 1067 Comment
  HSC78379  Lonicera conjugialis L. P. Janeway 1983-8-6 499 Siskiyou Poker Flat 1524 Comment
  JEPS16020  Lonicera tatarica W. T. Mooney 1903-5-21 Siskiyou Yreka Comment
  POM17238  Lotus crassifolius Geo. D. Butler 1910-6-6 1452 Siskiyou Quartz Valley. Comment
  UC144467  Lotus crassifolius var. crassifolius A. A. Heller 1905-6-5 7972 Siskiyou between Shasta Retreat and Shasta Springs Comment
  UC163679  Lotus humistratus Geo. D. Butler 1910-7-3 1623 Siskiyou Goosenest foothills Goosenest 1219 Comment
  JEPS75370  Lotus nevadensis var. nevadensis Geo. D. Butler 1908-6-28 392 Siskiyou L. Eastlick's Ranch Oro Fino Comment
  UC160445  Lotus stipularis var. ottleyi I. J. Condit 1911-7-8 Siskiyou Shasta Retreat 762 Comment
  CAS-BOT-BC140203  Luetkea pectinata John Thomas Howell 1937-7-24 13397 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC342566  Luina hypoleuca Doris K. Kildale 1928-8-19 6526 Siskiyou Trail between English Lake & Hancock Lake on way to Marble Mt. 2133 Comment
  JEPS85698  Lupinus albicaulis Geo. D. Butler 1908-7-20 371 Siskiyou Humbug Creek Comment
  POM230566  Lupinus albicaulis var. shastensis L. E. Smith 1913-6-18 375 Siskiyou Road between Sisson and Castle lake. Comment
  RSA119549  Lupinus albicaulis var. shastensis C. P. Smith 1947-5-13 47277 Siskiyou 2.2 miles east of Weed. Comment
  UC1409292  Lupinus albicaulis var. shastensis Frederick W. Oettinger 1969-8-19 1462 Siskiyou near Abbott's Basin ((high lake basins in the vicinity of English Peak)); Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  UC157010  Lupinus albifrons var. albifrons Geo. D. Butler 1908-6-20 366 Siskiyou near Yreka Comment
  SEINET10491224  Lupinus albifrons var. albifrons Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 687 Siskiyou 11 miles n of weed, on us hwy 97; decomposed lava, sandy on slight s-e-facing Slope; assoc. With juniper and artemisia, purshia and arctostaphylos 1250 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
  POM26763  Lupinus albifrons var. eminens Geo. D. Butler 1909-5-26 776 Siskiyou Yreka Creek Comment
  SEINET10937025  Lupinus albifrons var. flumineus Katherine L. Morris 1973-6-2 Morris 370 Siskiyou In an open meadow assoc. With yellow pine on the s side of hwy 3, 22 miles e of Fort jones Comment
  HSC22253  Lupinus andersonii J. P. Smith, J. O. Sawyer 1969-7-23 1453 Siskiyou Near N Horse Range Creek along C.C.C. Rd. 1341 Comment
  HSC2248  Lupinus aridus Geo. D. Butler 1910-9-11 1867 Siskiyou Weed Comment
  CAS-BOT-BC215194  Lupinus croceus J. H. Thomas 1954-5-13 4136 Siskiyou Near S Fork of Salmon River, 5-9 miles SE of Cecilville, vicinity of Blind Horse Creek, Salmon Mountains, Klamath National Forest. 1066 Comment
  CHSC914  Lupinus croceus M. Yoder 1941-7-12 Siskiyou Castle Lake. 1950 Comment
  NY15836  Lupinus croceus H. E. Brown 1897-6-11 392 Siskiyou North side of Mt. Shasta 1524.0 Comment
  SEINET10870978  Lupinus croceus Melvin L. Conrad, David B. Dunn; Patricia L. Kenney 1973-6-2 Conrad 6988 Siskiyou Yellow pine, libocedrus, douglas fir, western hemlock forest, 17.4 mi. Ne of Cecilville store, on rd. To callahan. 2073 Comment
  CAS-BOT-BC215102  Lupinus croceus Mrs. H. C. Cantelow 1936-5-20 s.n. Siskiyou N slope of Scott Mountain 1158 Comment
  CHSC69477  Lupinus croceus var. croceus James D. Jokerst 1992-7-30 3423 Siskiyou Top of divide between Trinity River, summit of reddish mountains S of road crossing saddle. Comment
  CAS-BOT-BC26622  Lupinus klamathensis Alice Eastwood; John Thomas Howell 1934-4-20 1775 Siskiyou Junction of Klamath and Shasta Rivers Comment
  POM24889  Lupinus klamathensis Geo. D. Butler 1909-5-8 709 Siskiyou Shasta Valley Comment
  SEINET10485428  Lupinus klamathensis Charles Piper Smith 1947-5-13 Smith 47274 Siskiyou 7.4 mi. E of weed. Hwy 97. Comment
  SEINET10937103  Lupinus klamathensis Charles Piper Smith 1940-6-7 Smith 15101 Siskiyou Occasional along the pacific hwy near black butte. 1219 Comment
  SEINET7042827 Image available Lupinus latifolius var. viridifolius 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
  SJSU6475  Lupinus lepidus var. sellulus R. W. Trivelpiece 1972-6-9 102 Siskiyou c. 4 mi W E of Grass L 1524 Comment
  UC725689  Lupinus lepidus var. sellulus A. A. Heller 1916-7-21 12481 Siskiyou near Upton 1097 Comment
  UCD108589  Lupinus lepidus var. sellulus Robert E. Preston 1996-7-22 974 Siskiyou north of Medicine Lake. 2026 Comment
  OBI59149  Lupinus leucophyllus Rhonda Riggins 1993-6-17 1687 Siskiyou Along CA 263, ca 1 mi N jct CA 96, 0,5mi S jct 15 Comment
  UC1333309  Lupinus leucophyllus Dorothy Parker 1949-6-16 322 Siskiyou along the Etna-Callahan road Scott Valley 868 Comment
  SEINET13761751  Lupinus luteolus R. R. Halse 2016-5-29 9715 Siskiyou Along Hilt Road, c 2.1 miles NW of Hilt on the OR/CA state line. 876 Comment
  JEPS83248  Lupinus microcarpus var. microcarpus W. L. Jepson 1940-6-23 19982 Siskiyou ca 2 mi e Montague; e <of> Montague 822 Comment
  POM10714  Lupinus obtusilobus C. F. Baker 1903-8-15 3918 Siskiyou Mt. Shasta Comment
  RSA104328  Lupinus obtusilobus A. A. Heller 1920-8-12 13516 Siskiyou A short distance below Horse Camp, Mt. Shasta. Comment
  RSA11258  Lupinus obtusilobus C. P. Smith 1922-8-9 3729 Siskiyou Below Horse Camp. 2287 Comment
  RSA104385  Lupinus onustus A. A. Heller 1905-6-15 8037 Siskiyou Near Sisson Comment
  RSA582454  Lupinus polyphyllus subsp. polyphyllus Louis C. Wheeler 1935-6-13 3572 Siskiyou Mill Creek, Quartz Valley. 884 Comment
  CHSC71482  Lupinus polyphyllus var. burkei Vernon H. Oswald; Lowell Ahart 1998-7-21 9330 Siskiyou Northeast of Weed on Tennant Rd. 4.5 mi east of Hwy. 97, 0.5 mi west of the Old State Hwy. to Bray. In a meadow. 1417 Comment
  UC157014  Lupinus polyphyllus var. polyphyllus Geo. D. Butler 1910-7-6 1642 Siskiyou Quartz Valley Comment
  UC454946  Lupinus polyphyllus var. polyphyllus I. J. Condit 1911-7-22 Siskiyou Sisson Comment
  RSA215621  Lupinus sellulus subsp. sellulus Gilbert Muth 1969-8-7 1241 Siskiyou Boulder Peak 2530 Comment
  HSC77049  Lupinus sellulus subsp. ursinus K. T. Stillman 1976-7-7 170 Siskiyou Marble Mountain Wilderness Area 1982 Comment
  HSC41643  Lupinus sellulus subsp. ursinus J. O. Sawyer, Ed Cope 1977-6-21 2982 Siskiyou Near Prescott Peak along headwaters of W Fork of Clear Creek 1677 Comment
  SEINET10490891  Lupinus sellulus var. sellulus Smith 1929-7-17 Smith 4425 Siskiyou 1/2 mi n of igerna. Comment
  RSA607422  Luzula campestris L. C. Wheeler 1934-8-14 3129 Siskiyou North side White Mountain; Siskiyou Mountains. Mt. Diablo Mer. 1767 Comment
  HSC92875  Luzula comosa Jennifer Whipple 1978-7-20 2362 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River 2439 Comment
  JEPS67159  Luzula comosa var. laxa Geo. D. Butler 1910-4-19 1197 Siskiyou Near Yreka Comment
  HSC98169  Luzula parviflora J. O. Sawyer 1969-8-11 2003 Siskiyou Along S French Creek 1692 Comment
  RSA120868  Machaeranthera canescens var. shastensis H. K. Wagnon 1957-8-11 1701 Siskiyou East slope of Mt. Shasta in meadow ca. 1 mile west of Military Pass Road, along road to Brewer's Creek Comment
  CAS-BOT-BC342601  Madia R. E. Frenkel 1965-6-14 943 Siskiyou On Everitt Memorial Highway, 1.7 miles north of McCloud River RR crossing near Mount Shasta 1290 Comment
  SEINET11806038  Madia bolanderi C. G. Pringle 1882-1 s.n. Siskiyou about Mt. Shasta Comment
  CAS-BOT-BC342666  Madia citriodora John Thomas Howell 1934-7-4 12410 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley Comment
  UC89538  Madia citriodora K. Brandegee July 1887 Siskiyou Ager Klamath River, Ager Comment
  CAS-BOT-BC344013  Madia elegans Elmer I. Applegate 1923-9-7 3782 Siskiyou Mouth of Doggett Creek, Klamath River Comment
  JEPS40344  Madia elegans Geo. D. Butler 1909-8-17 450 Siskiyou along creek near Yreka Comment
  CDA30925  Madia elegans subsp. elegans M. Beyers, G. F. Hrusa 2010-8-18 694 Siskiyou Highway 96; Sluice Box Klamath River Access. 410 Comment
  UC1096810  Madia exigua Milo S. Baker 1957-6-16 13149 Siskiyou Scott Mt. 1767 Comment
  CAS-BOT-BC343434  Madia gracilis Louis C. Wheeler 1934-6-4 2646 Siskiyou Horse Creek, Siskiyou Mts. 1066 Comment
  RSA11145  Madia gracilis subsp. gracilis C. B. Wolf 1934-7-4 5939 Siskiyou Horse Creek road to Dry Lake Lookout, Siskiyou Mountains, 8.4 miles by road from the Lookout Station 1524 Comment
  POM149223  Mahonia aquifolium E. B. Copeland 1903-8-19 3810 Siskiyou Mt. Eddy. 1463 Comment
  SEINET8493798  Maianthemum stellatum G. D. Butler 1910-5-15 1343 Siskiyou McAdams Creek. Comment
  SBBG25909  Malva neglecta D. Myrick 1966-8-13 1551 Siskiyou below barns at Mountain Meadow Ranch, Big Flat, Trinity Alps 1524 Comment
  HSC176  Malva neglecta William J. Ferlatte 1966-8-3 261 Siskiyou Mtn. Meadow Ranch 1524 Comment
  UC165788  Melica aristata Geo. D. Butler 1909-7-15 811 Siskiyou Russian Creek 1828 Comment
  CAS-BOT-BC271214  Melica bulbosa K. T. Stillman 1976-7-15 248 Siskiyou Marble Mountain Wilderness Area Comment
  HSC76950  Melica bulbosa K. T. Stillman 1976-7-15 248 Siskiyou Marble Mountain Wilderness Area. Comment
  UC197193  Melica fugax Geo. D. Butler 1910-4-19 1196 Siskiyou Yreka Comment
  UCD77854  Melica fugax Robert E. Preston 2002-6-20 1854 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge 2186 Comment
  UCD87564  Melica harfordii R. Tofsrud 1949-8-3 s.n. Siskiyou Scott River about 10 miles south of Scott Bar. Comment
  HSC73344  Melica subulata Gail Newton 1980-6-20 457 Siskiyou Near Bald Mtn. 1097 Comment
  UCD88598  Melica subulata A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3447 Siskiyou 11 miles north of Happy Camp, banks of Indian Creek. Comment
  JEPS44110  Mentzelia albicaulis W. B. and V. G. Cooke 1965-7-12 35170 Siskiyou below railroad crossing (Along Bolam Road); Mt. Shasta Comment
  POM83506  Mentzelia laevicaulis Geo. D. Butler 1910-7-17 1789 Siskiyou Dry land near Yreka. Comment
  UC1980551  Mentzelia laevicaulis C. Rose Broome, James L. Reveal, Darin Reveal, Crissie Cagle 1978-8-6 2323 Siskiyou CA highway 96, 0.8 mi. W of Hamburg, at Mill Creek, opposite the highway from the Klamath River. Comment
  CAS-BOT-BC428557  Micranthes aprica Gilbert Muth 1966-7-31 475 Siskiyou North side of Black Mountain, Marble Mts. 2057 Comment
  SEINET8463950  Micranthes ferruginea D. W. Taylor 1996-7-7 15801 Siskiyou Salmon Mountains, Ruffey Lakes (about 8 air miles Southwest of Etna) in cirque above the upper lake, Klamath National Forest 2073 Comment
  CAS-BOT-BC429156  Micranthes odontoloma Gilbert Muth 1965-8-17 308 Siskiyou Lower Creek on trail to Blk. Mt. Comment
  CAS-BOT-BC429258  Micranthes oregana Elmer I. Applegate 1895-5-29 446 Siskiyou Sisson, west base of Mt. Shasta Comment
  HSC67936  Micropus californicus var. californicus J. P. Smith 1973-5-5 6529 Siskiyou Scott Bar along the Scott River 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
  JEPS13221  Microseris laciniata subsp. laciniata W. L. Jepson 1940-7-3 20103 Siskiyou large meadow 5 mi se Bartle; Big Bear Flat 1219 Comment
  CAS-BOT-BC349377  Microseris nutans H. M. Hall 1909-7-1 8676 Siskiyou Salmon Mountain. Salmon River 1615 Comment
  HSC76976  Microsteris gracilis K. T. Stillman 1976-6-25 43 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  JEPS10542  Mimulus breweri W. L. Jepson 1937-7-30 18552 Siskiyou Poker Flat Siskiyou Mts. 1584 Comment
  JEPS29094  Mimulus breweri Lauramay T. Dempster 1961-7-2 1864 Siskiyou ridge w Salmon Mountain Summit (sw of Etna) 1828 Comment
  RSA15688  Mimulus guttatus Carl B. Wolf 1927-8-26 1075 Siskiyou On the Klamath River, near Hamburg. Comment
  JEPS4201  Mimulus layneae A. A. Heller 1938-7-12 15248 Siskiyou 5 mi n Weed (on U. S. Highway #97) 1066 Comment
  UCD122803  Mimulus moschatus J. M. Tucker; D. V. Hemphill 1974-7-27 4305 Siskiyou at edge of Haypress Creek, Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  UCD122797  Mimulus moschatus Jack Major; M. Fleschner, R. Pemble 1966-9-3 s.n. Siskiyou near head of Canyon Creek, east of Marble Mountain, Marble Mountains. 1645 Comment
  HSC90991  Mimulus nanus Jennifer Whipple 1976-8-20 1716 Siskiyou S face of Mt. Eddy draining into the N Fork of the Sacramento River 2470 Comment
  SDSU117  Mimulus nanus var. jepsonii David M. Thompson 1988-6-4 932 Siskiyou 8.0 miles E of McCloud along Hwy 89. SW corner of jct of Bigelow Meadows Road and Hwy 89. Opposite Hwy 89 from USFS Road 40N16; 2.4 miles W of turnoff for Cattle Camp Road; 2.0 mile W of USFS Ash Creek Station; T39N, R1W, N1/2 S5. 1097 Comment
  UCSB59405  Mimulus nanus var. jepsonii Thompson, David 1988-6-4 Siskiyou 8.0 mi E of McCloud along Hwy 89; SW corner of jct of Bigelow Meadows Road and Hwy 89; Opposite Hwy 89 from USFS Road 40N16; 2.4 mi W of turnoff for Cattle Camp (Cattle Camp Road); 2.0 mi W of USFS Ash Creek Station; T39N, R1W, S5 1100 Comment
  UC27122  Mimulus torreyi F. W. Morse 1886-1 Siskiyou Shasta Comment
  HSC68023  Minuartia douglasii J. P. Smith, Steve Selva 1970-6-16 4010 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  CAS-BOT-BC174729  Minuartia nuttallii Louis C. Wheeler 1934-6-29 2828 Siskiyou Klamath National Forest. Soda Creek 1066 Comment
  CAS-BOT-BC94415  Minuartia nuttallii R. C. Wenk 2005-7-15 228 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail. Top of pass, right side of path, 2133 Comment
  POM163895B  Minuartia nuttallii subsp. gregaria E. B. Copeland 1903-8-18 3907 Siskiyou Mt. Eddy. 2134 Comment
  RSA120683  Minuartia nuttallii subsp. gregaria S. S. Tillett 1956-7-9 633 Siskiyou Scott Mtn, Siskiyou Trinity County line, 8 miles SE of Callahan. 2073 Comment
  UC135706  Minuartia nuttallii subsp. gregaria Dr. E. B. Copeland 1903-8-18 3907 Siskiyou Mt. Eddy 2133 Comment
  UC852385  Minuartia nuttallii subsp. gregaria Alice Eastwood 1912-8-30 2017 Siskiyou Mount Eddy Comment
  CAS-BOT-BC181109  Minuartia nuttallii var. gregaria L. B. Kildale 1930-6-1 9845 Siskiyou Mill Creek near Etna Mills Comment
  JEPS51331  Minuartia rubella Harley P. Chandler June, 1901 1673 Siskiyou Marble Mountain North Coast Ranges 2438 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
  CAS-BOT-BC229608  Mirabilis greenei Geo. D. Butler 1910-5-11 1334 Siskiyou Shasta Valley Comment
  UC1483460  Mitella caulescens Maralyn A. Renner 1980-7-14 1721 Siskiyou headwaters of Etna Creek Klamath National Forest, Etna Quad. (near road at switchback) 1706 Comment
  CAS-BOT-BC433063  Mitella pentandra Gilbert Muth 1966-7-8 375 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC22291  Mitella pentandra J. O. Sawyer 1969-6-12 888 Siskiyou Sugar Creek 1515 Comment
  HSC44937  Mitella trifida J. O. Sawyer 1978-6-19 3245 Siskiyou Marble Mtn. Wilderness Area, trail between Timothy Gulch and Harry Hall Gulch 1433 Comment
  SBBG6452  Monardella odoratissima H. and M. Dearing 1939-7-2 3798 Siskiyou Etna-Salmon divide 1828 Comment
  SEINET3996417 Image available Monardella odoratissima J. M. Tucker, L. K. Mann, S. L. Holloway 1963-1 3754 Siskiyou Southwestern ridge of Black Marble Mountain, Marble Mountain Wilderness Area 2134 Comment
  UC2037103  Monardella odoratissima subsp. glauca Elmer I. Applegate 1935-8-3 10012 Siskiyou North base of Caldwell Butte; Lava Beds National Monument Comment
  HSC67815  Monardella odoratissima subsp. pallida J. O. Sawyer, J. Cole 1980-7-20 3788 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  RSA401674A  Monardella odoratissima subsp. pallida A. C. Life 1923-08 14593 Siskiyou near Mt. Shasta Comment
  CAS-BOT-BC220232  Monardella sheltonii Clare B. Hardham 1965-8-1 13081 Siskiyou Near Happy Camp on Sulphur Springs Road Comment
  CAS-BOT-BC220265  Monardella sheltonii Carl B. Wolf 1927-8-27 1129 Siskiyou On the Klamath River, 7 mi. below Happy Camp Comment
  RSA0022805  Monardella villosa Edward Palmer 1892-7-13 2508 Siskiyou Mt. Shasta and vicinity. Comment
  UCD77876  Monotropa hypopitys Robert E. Preston 2001-6-30 1645 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W nw 1/4 of se 1/4 Section 14 1767 Comment
  CAS-BOT-BC453478  Monotropa hypopitys Volney Rattan 1879-6-1 s.n. Siskiyou Klamath Comment
  RSA256711  Montia chamissoi J. P. Smith 1974-5-25 7469 Siskiyou Along road 8, 4.7 mi. west of its junction with State Route 3. 1159 Comment
  LA95001  Montia parvifolia J. M. Tucker; L. K. Mann 1963-7-4 3696 Siskiyou vicinity of U.S. Forest Service Public Camp, just E of Finley Camp, rd from Etna to Sawyer's Bar Comment
  UCD86526  Muhlenbergia asperifolia A. A. Heller 1918-7-25 13082 Siskiyou Gravelly soil between Gazelle and Edgwood in the Shasta Valley. Upper Sonoran Life Zone. Comment
  UC1026901  Muhlenbergia jonesii W. B. Cooke 1940-7-5 15247 Siskiyou along Wagon Camp rd. Mt. Shasta Comment
  HSC102705  Muhlenbergia richardsonis J. P. Smith 2013-6-17 13738 Siskiyou Off Tennant Road at a large, open pit. 1417 Comment
  UCD86974  Muhlenbergia richardsonis R. Tofsrud 1950-7-1 s.n. Siskiyou Hwy. 97, between Cougar and Macdoel. Comment
  HSC33997  Myosotis micrantha J. P. Smith 1974-5-25 7478 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  UC1265375  Najas flexilis F. W. Oettinger 1969-8-23 1511 Siskiyou Salmon Mountains, Smith Lake, western Siskiyou County Smith Lake; Salmon Mountains, Smith Lake 1417 Comment
  RSA24228  Nama lobbii Carl B. Wolf 1940-12-13 9802 Siskiyou Mt. Shasta s lower slopes. 1.5 miles northeast of Mt. Shasta City along power line road. 1220 Comment
  UC107202  Nama lobbii Wm. M. Canby in company with Profs. C. S. Sargent and John Muir 1897-9-7 207 Siskiyou Mt. Shasta Comment
  CHSC96709  Narthecium californicum Gordon Leppig 1998-8-14 1011 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen. Subalpine fen in cirque west of Little Duck Lake. NAD 27 UTM Zone 10, 503813E, 4572466N. 2200 Comment
  CAS-BOT-BC60324  Nasturtium officinale L. B. Kildale 1930-5-31 9811 Siskiyou Island in Klamath River near Hornbrook. Comment
  UCD48387  Navarretia divaricata John M. Tucker 1974-7-28 4329 Siskiyou Haypress Meadows, Marble Mountain Wilderness Area, Siskiyou County, California. 1463 Comment
  POM75694  Navarretia intertexta Geo D. Butler 1910-7-20 1730 Siskiyou Goosenest foothills. 1524 Comment
  JEPS19732  Navarretia linearifolia subsp. linearifolia Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-26 5949 Siskiyou on drier slopes just above meadows at sw end Gumboot Lake (headwaters South Fork Sacramento River, close to Trinity County line); headwaters South Fork Sacramento River, sw end Gumboot Lake 1859 Comment
  CAS-BOT-BC219535  Nemophila parviflora Clarence R. Quick 1958-6-17 58 -23 Siskiyou Near Black Bear Summit south of Sawyer's [Sawyers] Bar on ridge road to Cecilville 1356 Comment
  UCSC000576  Nemophila parviflora I. J. Condit 2011-7-3 s.n. Siskiyou Shasta Retreat, Bank of Sacramento River Comment
  CAS-BOT-BC219528  Nemophila parviflora Alice Eastwood 1923-5-18 11832 Siskiyou Shasta Springs Comment
  JEPS81664  Nicotiana attenuata L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2293 Siskiyou 0.2 mi n U.S. Highway 97 junction with Yreka road (along U.S. Highway 97, n of Mt Shasta) Comment
  HSC20458  Nicotiana attenuata D. M. Thomson 1965-8-4 163 Siskiyou Lava Beds National Monument, Black Crater trail, close to main road Comment
  CAS-BOT-BC60586  Noccaea fendleri subsp. glauca Doris K. Kildale 1929-8-24 8822 Siskiyou Preston Peak. Comment
  CAS-BOT-BC349914  Nothocalais alpestris Gilbert Muth 1966-7-14 389 Siskiyou Flat above Marble Valley, Marble Gap Trail, Marble Mts. 1828 Comment
  CAS-BOT-BC349923  Nothocalais troximoides E. K. Balls 1950-5-17 14715 Siskiyou 1.5 mi. NW. Schonchin Butte, (along road) Lava Beds Nat'l Monument 1402 Comment
  UC573272  Nothocalais troximoides M. H. Mitchell 1936-5-8 3 Siskiyou close to Schonchin Butte; Dorris Quad 1371 Comment
  UCR80886  Nothochelone nemorosa G. Fred Hrusa 1993-8-14 11399 Siskiyou Summit of Pass between Happy Camp, California and O'Brien, Oregon. Just on the California side of the state boundary 1375 Comment
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1
  UC166143  Nuphar lutea subsp. polysepala Geo. D. Butler 1910-7-8 1667 Siskiyou Log Lake, Shackleford Creek Shackleford Creek; Log Lake, Shackleford Creek Comment
  HSC22484  Nuphar polysepala J. O. Sawyer 1969-8-1 1594 Siskiyou Above Horseshoe Lake 1921 Comment
  HSC34269  Oreostemma alpigenum var. andersonii J. P. Smith, J. O. Sawyer 1973-8-14 7319 Siskiyou W of Cliff Lake 1982 Comment
  HSC4911  Oreostemma alpigenum var. andersonii J. O. Sawyer 1968-7-22 549 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC19211  Orthilia secunda J. O. Sawyer 1968-9-9 670 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC19212  Orthilia secunda J. O. Sawyer 1968-9-13 717 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC69387  Orthilia secunda Maralyn A. Renner 1980-8-31 2664 Siskiyou Poker Flat at trailhead to Twin Valley 1524 Comment
  UC637089  Orthilia secunda Edward Lee 1934-8-13 1087 Siskiyou waterhead of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1463 Comment
  CAS-BOT-BC458087  Orthilia secunda Doris K. Kildale 1928-8-18 6450 Siskiyou Near head of North Fork of Salmon River at Finley's Upper Camp Comment
  HSC34302  Orthocarpus cuspidatus subsp. copelandii J. P. Smith, J. O. Sawyer 1973-8-14 7298 Siskiyou On trail from Campbell Lake to Cliff Lake. 1829 Comment
  JEPS76186  Orthocarpus cuspidatus subsp. copelandii T. I. Chuang with Fei-Mei Chuang 1977-7-22 7636 Siskiyou 3/4 mi from Deadfall Meadow to Deadfall Lake (Mt. Eddy); , fr Deadfall Meadow to Deadfall Lake 2042 Comment
  UC718019  Orthocarpus cuspidatus subsp. copelandii Carl B. Wolf 1934-7-4 5938 Siskiyou 13.5 mi from Horse Creek Bridge (Horse Creek--Dry Lake Lookout); Siskiyou Mountains, Klamath River, Horse Creek, Dry Lake 1524 Comment
  RSA237571  Orthocarpus cuspidatus subsp. copelandii Frederick W. Oettinger 1967-8-12 251 -b Siskiyou Between Tom Taylor Cabin meadows and the large meadow northwest of English Peak Lookout. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  UC1034070  Orthocarpus imbricatus unknown 1941-8-16 Siskiyou in areas below Wagon Camp Mount Shasta (Mount Shasta); , below Wagon Camp Comment
  RSA126288  Osmorhiza berteroi I. L. Wiggins 1955-7-21 13428 Siskiyou Near Mt. View Ranch 7 miles above Cecilville on S Fork of Salmon River 976 Comment
  SD88460  Osmorhiza occidentalis Darley F. Howe 1972-7-5 Siskiyou 0.6 miles south of Oregon state line on road to Happy Camp. 1705 Comment
  SFV8548  Osmorhiza purpurea J. M. Tucker, L. K. Mann 1963-7-5 3700 Siskiyou Salmon Mountains. On Blake's Fork of South Russian Creek (a tributary of Salmon River), about 7 miles (airline) east of Sawyer's Bar. 1616 Comment
  CAS-BOT-BC413216  Oxyria digyna Wm. Bridge Cooke 1938-9-8 11651 Siskiyou Mount Shasta. North side of Red Butte Comment
  CHSC1340  Oxyria digyna E. Willits 1943-8-11 Siskiyou Marble Mountains. 1828 Comment
  HSC61135  Oxyria digyna Al Hobart Jul 1967 Siskiyou El Capitan Comment
  RSA215635  Oxyria digyna Gilbert Muth 1969-8-7 1225 Siskiyou damp shaded area on east side of Boulder Peak Ridge in Subalpine Forest. 2470 Comment
  CAS-BOT-BC316757  Packera cana Peter Hamilton Raven 1956-9-4 10390 Siskiyou pass just south of Mt. Eddy 2438 Comment
  UCD77995  Packera cana Robert E. Preston 2001-7-21 1736 Siskiyou Klamath National Forest, Rainbow Mountain, T42N R1W se 1/4 of ne 1/4 Section 22 2194 Comment
  UC618692  Packera streptanthifolia W. Bridge Cooke 1938-8-23 11572 Siskiyou n slope of Shastina near timberline (Mount Shasta); , n slope of Shastina 2590 Comment
  UC165943  Paeonia brownii Geo. D. Butler 1910-4-23 1229 Siskiyou Quartz Valley Comment
  POM198349  Panicum capillare Geo D. Butler 1910-8-13 1833 Siskiyou Quartz Valley Comment
  UC642576  Parnassia californica W. Bridge Cooke 1939-8-24 13898 Siskiyou Mount Shasta, area of Squaw Valley Creek meadows Mount Shasta 2286 Comment
  HSC2391  Parnassia fimbriata W. J. Ferlatte 1966-8-19 435 Siskiyou Trinity Alps, Kidd Creek Trail. 1890 Comment
  HSC26703  Parnassia fimbriata W. J. Ferlatte 1971-9-18 1376 Siskiyou Trinity Alps, Caribou Basin, Sawtooth Ridge. 2378 Comment
  UCR70823  Parnassia palustris var. californica L. C. Wheeler 1934-8-14 3127 Siskiyou Siskiyou Mtns, North side of White Mountain 1768 Comment
  HSC41129  Paspalum distichum J. P. Smith, Steve Selva 1970-7-17 4432 Siskiyou Along Klamath River Comment
  UC572973  Pastinaca sativa Louis C. Wheeler 1935-7-4 3653 Siskiyou Yreka; creek bed 800 Comment
  CAS-BOT-BC202846  Paxistima myrsinites Dorothy Parker 1950-6-4 446 Siskiyou Salmon Mt. 1920 Comment
  CAS-BOT-BC202865  Paxistima myrsinites Wm. Bridge Cooke 1938-6-17 11046 Siskiyou Mount Shasta. Sisson Southern Trail 1432 Comment
  HSC29145  Paxistima myrsinites Frederick W. Oettinger 1968-9-3 687 Siskiyou Marble Mtn. Wilderness Area, steep loose talus due W of 'Horse's Hole', a pond above Horse Range Lake 1982 Comment
  UC133560  Paxistima myrsinites A. A. Heller 1905-6-5 7976 Siskiyou between Shasta Retreat Shasta Springs Comment
  UC163986  Paxistima myrsinites Geo. D. Butler 1910-4-22 1219 Siskiyou Kidder Creek Comment
  UC54486  Paxistima myrsinites H. M. Hall and E. B. Babcock June, 1903 4075 Siskiyou near Upton; Sierra Nevada Mts., Mt. Shasta 1219 Comment
  UC922551  Pedicularis bracteosa var. flavida Annie M. Alexander and Louise Kellogg 1948-9-9 5612 Siskiyou Trail to Taylor Lake (near top of trail); Siskiyou Mountains Comment
  RSA211121  Pedicularis contorta William J. Ferlatte 1966-8-17 397 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  UC454810  Pedicularis densiflora I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat (summit of Mount Bradley); Mount Bradley 1828 Comment
  UC618752  Pedicularis densiflora W. Bridge Cooke 1938-6-24 11098 Siskiyou Mount Shasta 1524 Comment
  UC794376  Pedicularis densiflora Lincoln Constance, Lee Bonar, Richard W. Holm and Carroll E. Wood Jr. 1949-5-21 3288 Siskiyou 10 mi s of Callahan; Scott Mountain Campground 1630 Comment
  UC886599  Pedicularis densiflora A. A. Heller 1915-7-15 12085 Siskiyou Mount Eddy 2072 Comment
  JEPS3363  Pedicularis howellii W. L. Jepson 1907-7-10 2876 Siskiyou Kelsey Trail near Preston Peak (Onion Patch) 1828 Comment
  UC185225  Pellaea brachyptera Geo. D. Butler 1910-8-7 1820 Siskiyou Humbug Mt 1371 Comment
  CAS-BOT-BC67669  Pellaea breweri Gilbert Muth 1966-8-3 163 Siskiyou Marble Mountains 1792 Comment
  OBI80247  Penstemon David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  HSC63264  Penstemon anguineus M. A. Baker 1979-7-30 1077 Siskiyou Draw W of trail to Rainy Lake Comment
  UC1222496  Penstemon anguineus Joseph P. Tracy 1951-6-16 19474 Siskiyou near State Line (summit of the Siskiyous, at crossing of Takilma-Happy Camp Road near State Line (Oregon to Calif.)); Siskiyous aummit Comment
  UC1238934  Penstemon cinereus Freed W. Hoffman 1948-7-13 2651 Siskiyou 8.4 mi n of Tennant (on Butte Creek road); North Coast Ranges, n of Tennant 1295 Comment
  HSC69368  Penstemon cinicola J. O. Sawyer, J. Cole 1980-7-20 3809 Siskiyou E side of Grouse Hill 2122 Comment
  UC139723  Penstemon davidsonii var. davidsonii E. B. Copeland 1903-8-16 3871 Siskiyou Mount Shasta 3048 Comment
  UC70415  Penstemon davidsonii var. davidsonii Milo S. Baker Aug 1894 Siskiyou Medicine Lake Comment
  UCD124066  Penstemon davidsonii var. davidsonii Dean Wm. Taylor 1975-8-14 5359 Siskiyou Mount Shasta: between Shasta Ski area and Green Butte. 2590 Comment
  CDA41878  Penstemon deustus Jess Grisham 1958-5-13 421 -58 Siskiyou Wanaka property, Yreka. 0 Comment
  RSA401795B  Penstemon deustus Donald Myrick 1968-6-27 2037 Siskiyou Rocky ledge just above Carter's Ranch, 5 miles south of Big Flat, head of Coffee Creek. 1677 Comment
  UC618804  Penstemon deustus var. suffrutescens David D. Keck 1938-6-17 11043 Siskiyou Sisson Southern Trail Mount Shasta, Sisson Southern Trail (on the lava outcropping along the trail) Comment
  JEPS11264  Penstemon gracilentus W. L. Jepson 1894-8-4 21431 Siskiyou near Horse Camp (snow line Mount Shasta); Mount Shasta near Horse Camp Comment
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Jan 18 2009
  SBBG16535  Penstemon gracilentus D. Myrick 1961-6-20 269 Siskiyou near Mt Shasta City 1066 Comment
  UCD77905  Penstemon gracilentus Robert E. Preston 2001-6-23 1568 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, at Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  SEINET5328440 Image available Penstemon gracilentus K. Vincent, C. Labbe 1987-8-12 4512 Siskiyou Cascade Range, Butte Mtn., on logged edge of douglas fir forest along Butte Mtn. Rd. ca 3.6 mi W of jct. Meiss Lake Rd., located 7.2 mi W of jct. US 97 on S side of MacDoel, 1829 Comment
  CHSC97345  Penstemon heterodoxus var. shastensis Jenny Marr 2006-6-18 232 Siskiyou Cascade Range High. Plants collected along Hwy. 97. 1524 Comment
  NY601593  Penstemon heterodoxus var. shastensis A. A. Heller 1922-7-16 13716 Siskiyou Near Harris Spring, northeast of Mt. Shasta Comment
  UC164255  Penstemon heterodoxus var. shastensis Geo. D. Butler 1910-6-19 1591 Siskiyou Goosenest foothills 1524 Comment
  HSC20971  Penstemon humilis subsp. humilis D. M. Thomson 1965-6-19 102 Siskiyou Lava Beds National Monument, 0.5 mi. S of Merril Ice Cave, on fire road Comment
  HSC20972  Penstemon humilis subsp. humilis R. C. Wunner 1965-6-10 143 Siskiyou Lava Beds National Monument, Caldwell Butte above Caldwell Minor 1463 Comment
  JEPS116584  Penstemon laetus Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -016 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N15 Weed (unburned area witin Hotlum Fire perimeter burned Feb 2006; 4 mi NE of town of); Mt. Shasta 1219 Comment
  CHSC99994  Penstemon laetus var. sagittatus L. P. Janeway 2008-7-25 9501 Siskiyou Klamath Ranges. Siskiyou Mountains; 3.2 air km southwest of Cook and Green Pass; 0.4 km southeast of Red Butte. 1736 Comment
  JEPS11379  Penstemon laetus var. sagittatus W. L. Jepson 1940-6-23 20000 Siskiyou e Mayten (e side of Little Shasta Valley); , e of Mayten 883 Comment
  SEINET11262160  Penstemon laetus var. sagittatus Noel H. Holmgren, Patricia K. Holmgren 1980-7-1 9448 Siskiyou U.S. Highway 97, 8.7 km (5.4 mi) northeast of Weed.; 0 1100 Comment
  UC1874808  Penstemon laetus var. sagittatus Karl Vincent, Charlotte Labbe 1987-8-12 4510 Siskiyou Cascade Range, Mt. Shasta. Along E side of US 97 ca 5.1 mi NE of jct. I-5 Business Loop in Weed. 1158 Comment
  NY604563  Penstemon laetus var. sagittatus A. A. Heller 1938-7-12 15256 -a Siskiyou Along U.S. Highway 97, near the western base of Deer Mountain Comment
  JEPS30716  Penstemon newberryi var. newberryi Lee W. Lenz 1961-6-20 24355 Siskiyou road to Panther Flat; Mount Shasta 1584 Comment
  UC887236  Penstemon parvulus A. A. Heller 1916-7-22 12485 Siskiyou e side Mt. Eddy Comment
  HSC19234  Penstemon procerus var. brachyanthus J. O. Sawyer 1969-8-2 1701 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  HSC61155  Penstemon procerus var. brachyanthus Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  JEPS11637  Penstemon roezlii Geo. D. Butler 1908-6-28 431 Siskiyou L. Eastlicks Ranch , L. Eastlicks Ranch (Oro Fino) Comment
  SBBG28893  Penstemon roezlii G. D. Butler 1910-6-9 1579 Siskiyou foothills of Goosenest Mtns 1386 Comment
  UC335730  Penstemon roezlii J. G. Lemmon 1889-7-28 Siskiyou Mts. near Eddy Mt. (Shasta region); , Mts. near Eddy Mt. Comment
  UC585127  Penstemon roezlii E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1912 Siskiyou about 7 mi sw Yreka (s of highway from Yreka to Fort Jones); Forest House Mt. 1371 Comment
  UC909324  Penstemon roezlii Dorothy Parker 1948-6-14 Siskiyou Rail Creek , Rail Creek (Plowman's Valley) 1203 Comment
  HSC46220  Penstemon roezlii Jennifer Whipple 1978-6-5 2329 Siskiyou Weston Gulch in Scott Valley 854 Comment
  SD46702  Penstemon rydbergii var. oreocharis E. K. Balls, L. W. Lenz 1956-6-18 21806 Siskiyou 1.3 mi. se. of Bartle (jct. with rd. to Lava Beds) State Hwy. 89, McCloud to Burney 1219 Comment
  UC1096820  Penstemon speciosus Milo S. Baker 1957-6-15 13111 Siskiyou just s Weed; just s of Weed Comment
  UC532167  Penstemon speciosus Isabelle C. Kimber 1934-6-9 1 Siskiyou n slope Mt. Shasta 1219 Comment
  RSA237652  Perideridia gairdneri subsp. gairdneri Frederick W. Oettinger, R. Thorne 1969-8-8 1304 Siskiyou In boggy meadow below Sundew Bog upper bog holes just west of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
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Jun 12 2012
  UC1258150  Perideridia leptocarpa Clifton and Ground 1978-6-27 1458 Siskiyou close to town Callahan (near Wildcat Creek); Etna Quad., near Wildcat Creek 1098 Comment
  RSA507512  Perideridia oregana S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  RSA237647  Perideridia parishii subsp. latifolia Frederick W. Oettinger 1967-8-20 286 Siskiyou Just below Tom Taylor Cabin spring and in bordering wet meadows. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2050 Comment
  CAS-BOT-BC423353  Peritoma platycarpa A. A. Heller 1905-6-9 8010 Siskiyou Montague Comment
  HSC43050  Persicaria lapathifolia K. T. Stillman 1976-8-24 441 Siskiyou Along the Klamath River at Williams Point 366 Comment
  CAS-BOT-BC419264  Persicaria maculosa Elmer I. Applegate 1923-9-6 3977 Siskiyou Klamath River, mouth of Doggett Creek Comment
  CAS-BOT-BC330261  Petasites frigidus var. palmatus L. E. Smith 1915-4-25 s.n. Siskiyou Sisson Comment
  UC60932  Petasites frigidus var. palmatus Geo. B. Grant Sep 1902 5253 Siskiyou Shasta Springs Mount Shast 609 Comment
  CAS-BOT-BC142702  Phacelia cookei W. B. Cooke; V. G. Cooke 1972-6-30 45419 Siskiyou Military Pass Road, Mt. Shasta. In margins of road. 1524 Comment
  HSC103911  Phacelia corymbosa Dana York, Richard Helliwell 2010-9-11 3017 Siskiyou Six Rivers National Forest, boundary of Siskiyou Wilderness, NW slope of Broken Rib Mountain 1433 Comment
  HSC68417  Phacelia corymbosa Maralyn A. Renner 1980-6-9 839 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  SD120823  Phacelia corymbosa L. R. Heckard 1967-8-13 1694 Siskiyou Near Summit Mt Eddy, south facing slope 2713 Comment
  JEPS81016  Phacelia egena James Payne Smith Jr. 1976-5-22 8784 Siskiyou Callahan Rd along e side of valley Scott Valley 1036 Comment
  UC673183  Phacelia egena Lincoln Constance and Reed C. Rollins 1942-5-13 2900 Siskiyou 8 mi s Happy Camp (near Clear Creek); Klamath-Siskiyou Region, Klamath River 304 Comment
  UC1561279  Phacelia greenei Barbara Ertter with Thomas J. Delendick 1987-5-17 6969 Siskiyou on FR 40N08 1/2 mi e Rt. 3; Scott Mt. Summit 1706 Comment
  SEINET12280193  Phacelia heterophylla H. P. Chandler 1901-1 1655 Siskiyou Marble Mountain 2438 Comment
  UC164119  Phacelia heterophylla subsp. virgata Geo. D. Butler 1910-5-22 1386 Siskiyou Yreka Creek Comment
  UC60951  Phacelia heterophylla subsp. virgata Geo. B. Grant September 1902 5174 Siskiyou Sisson Mt. Shasta 914 Comment
  SBBG30550  Phacelia linearis D. Myrick 1968-6-22 1993 Siskiyou Lava Beds Nat Monument 1371 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
  JEPS55975  Phacelia mutabilis John Thomas Howell 1939-8-9 15233 Siskiyou ridge s Marble Valley; Marble Mts. Comment
  RSA238836  Phacelia mutabilis Frederick W. Oettinger 1968-8-11 482 Siskiyou Just below Tom Taylor Cabin spring. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  RSA0057589  Philadelphus lewisii I. L. Wiggins 1955-7-21 s.n. Siskiyou Small gulch on Rush Creek Trail 1.5 mi. above Mt. View Ranch. 1037 Comment
  RSA0097451  Philadelphus lewisii E. E. Stanford 1930-6-15 1601 Siskiyou Shasta River Canyon near Yreka. Comment
  CAS-BOT-BC250951  Phleum pratense Doris K. Kildale 1928-8-18 6487 Siskiyou Near head of north fork of Salmon River at Finley's Upper Camp 1828 Comment
  HSC34296  Phleum pratense J. P. Smith, J. O. Sawyer 1973-8-14 7290 Siskiyou Along trail from Log Lake to Campbell Lake 1677 Comment
  UC196936  Phleum pratense Geo. D. Butler 1908-6-25 1094 Siskiyou along creek near Yreka Comment
  UC682099  Phlox adsurgens G. L. Stebbins Jr. with A. A. Beetle 1942-6-1 3268 Siskiyou 15 mi n Happy Camp (above Indian Creek) 1219 Comment
  JEPS84256  Phlox diffusa L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6413 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
  SD114161  Phlox diffusa Darley F. Howe 1979-6-26 5110 Siskiyou Military Pass Road, 19 miles east of Highway 97. 1768 Comment
  RSA78684  Phlox diffusa subsp. diffusa P. A. Munz 1952-7-2 17881 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1494 Comment
  RSA237975  Phlox diffusa subsp. subcarinata Frederick W. Oettinger 1969-7-10 964 Siskiyou South of Upper English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1921 Comment
  UCR37836  Phlox gracilis L. P. Janeway 1983-7-3 368 Siskiyou Ridgetop NW of Poker Flat. (Siskiyou crest) 1585 Comment
  HSC93351  Phlox hirsuta Daine Elam, Ken Fuller 1997-5-14 Siskiyou Soap Creek Ridge, upslope from Hwy. 3, SW of Yreka Comment
  SEINET7042831  Phlox speciosa 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
  UC455645  Phlox speciosa subsp. nitida I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1981 Comment
  SFV1505  Phoenicaulis cheiranthoides D. Parker 1958-4-13 629 Siskiyou Near Callahan. 957 Comment
  UC141920  Phoradendron densum Copeland 1903-7-7 3542 Siskiyou Hornbrook Comment
  UC618793  Phoradendron libocedri W. Bridge Cooke 1938-8-19 11520 Siskiyou Mt. Shasta, Bear Springs Comment
  CAS-BOT-BC250993  Phragmites australis Louis C. Wheeler 1934-10-21 3335 Siskiyou Shasta Valley 4 miles E Grenada 868 Comment
  CDA5888  Physalis longifolia B. Pitman 1965-7-22 Siskiyou Clement ranch, Montague. 0 Comment
  CHSC91684  Physalis longifolia T. C. Fuller 1966-10-6 15246 Siskiyou Clement ranch, 5 mi. n. of Montague. Comment
  HSC76715  Physaria occidentalis K. T. Stillman 1976-7-30 347 Siskiyou Marble Mtn. Wilderness Area, Upper Marble Valley. 1829 Comment
  HSC91034  Physaria occidentalis subsp. occidentalis Jennifer Whipple 1976-6-30 1186 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  SFV1495  Physaria occidentalis subsp. occidentalis D. Parker 1952-4-27 213 Siskiyou East Fork of the Scott River. 1220 Comment
  CAS-BOT-BC140596  Physocarpus capitatus A. A. Heller 1915-8-24 12205 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC140610  Physocarpus capitatus A. A. Heller 1915-7-18 12109 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  RSA666427  Physocarpus capitatus Barbara Ertter 1990-7-14 9334 Siskiyou Wagon Creek on east side of Mt. Eddy, ca. 4 air miles west of Mt. Shasta City 1829 Comment
  UC1034605  Physocarpus capitatus Douglas Barbe 1955-6-29 45 Siskiyou 1.8 mi e Callahan (on bank of Scott River); Klamath Mts 975 Comment
  CAS-BOT-BC78164  Picea breweriana Roxana S. Ferris; Doris K. Kildale 1928-8-19 (K) 6534 Siskiyou Summit of Divide between English + Hancock Lake - trail to Marble Mt. 2194 Comment
  SBBG25537  Picea breweriana D. Myrick -Aug-1966 Siskiyou Caribou Mtn, Trinity Alps Comment
  UCD134306  Picea breweriana John M. Tucker 1963-7-5 3698 Siskiyou Blake's Fork of South Russian Creek (a tributary to Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1615 Comment
  JEPS35940  Picea breweriana John Allen 1964-9-1 Siskiyou ca due w Orleans (on ridge between Dillon Creek and Elk Valley, road starts up from Orleans and finally one takes the Dillon Mtn. road) 1219 Comment
  CAS-BOT-BC73439  Picea engelmannii L. E. Berriman 1940-8-30 s.n. Siskiyou North Coast Ranges - Sugar Creek, a tributary of the Scott River. Mount Diablo Meridian. 1432 Comment
  HSC4808  Pinus albicaulis J. O. Sawyer 1968-7-9 753 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  RSA184701  Pinus albicaulis Gilbert Muth 1966-8-6 177 Siskiyou Ridges of the Marble Rim, Marble Mountains. 2134 Comment
  RSA12507  Pinus attenuata C. B. Wolf 1934-7-4 5929 Siskiyou 3/10 mile below Walker Creek, Klamath River. Comment
  SEINET10530651  Pinus attenuata Katherine L. Morris 1973-5-25 Morris 276 Siskiyou Collected 7.0 mi E of McCloud on Hwy 89 in an area of Pinus ponderosa and Pinus attenuata. Comment
  RSA215637  Pinus balfouriana Gilbert Muth 1969-8-10 1355 Siskiyou Ridge W of Boulder Peak. 2287 Comment
  UC688867  Pinus balfouriana William E. Ferguson 1942-8-28 Siskiyou sw quarter Etna Quadrangle; Lyon Lake, Etna Quad. 2133 Comment
  CAS-BOT-BC78410  Pinus balfouriana W. R. Dudley 1901-8-22 s.n. Siskiyou Foxtail Ridge Comment
  UC401404  Pinus contorta subsp. murrayana Geo. D. Butler 1910-5-10 1333 Siskiyou Goosenest Mountain Goosenest Mountain (swampy woods) 1676 Comment
  HSC67826  Pinus contorta var. murrayana J. O. Sawyer, J. Cole 1980-7-20 3763 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  JEPS120218  Pinus jeffreyi Julie Kierstead Nelson with Keli McElroy 2012-8-10 2012 -074 Siskiyou NW side of Gumboot Lake Comment
  CAS-BOT-BC78774  Pinus lambertiana Doris K. Kildale 1929-5-26 9187 Siskiyou Hawkins Bar on Salmon River 609 Comment
  CAS-BOT-BC78781  Pinus lambertiana Carl B. Wolf 1927-8-26 1106 Siskiyou On the Klamath River, 8 mi. above Happy Camp Comment
  HSC1516  Pinus lambertiana R. C. Wunner 1965-8-21 463 Siskiyou California Lava Beds National Monument; 1/4 mile from Caldwell Butte towards Caldwell Ice Cave 1402 Comment
  RSA82766  Pinus lambertiana J. M. Tucker 1950-7-24 1956 Siskiyou Beside road to Brewer Creek, off the Military Road, east side of Mt. Shasta. Comment
  SD76165  Pinus monticola Helen V. Witham 1969-10-6 555 Siskiyou Scott Mountains, steep west slope above Kangaroo Lake 2100 Comment
  UC401400  Pinus monticola Geo. D. Butler 1908-8-5 521 Siskiyou Cold Springs, Woolly Creek, Cold Springs Comment
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Nov 25 2011
  UC618670  Piperia unalascensis W. Bridge Cooke 1938-7-22 11309 Siskiyou Wagon Camp meadow Mount Shasta, Wagon Camp 1737 Comment
  JEPS84239  Piperia unalascensis L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6354 Siskiyou ca 7 mi nne Seiad Valley (about 0.5 mi se of Red Butte, sw of Cook and Green Pass) 1730 Comment
  UC78224  Plagiobothrys hispidulus T. S. Brandegee July, 1889 Siskiyou Sisson's Comment
  CAS-BOT-BC231002  Plagiobothrys hispidulus Alice Eastwood 1921-7-25 s.n. Siskiyou Near Pigrim Creek nursery Comment
  SD76179  Plagiobothrys hispidus Helen V. Witham 1969-10-9 593 Siskiyou Common on clearing, Mt. Shasta. 1500 Comment
  POM72151  Plagiobothrys nothofulvus Geo. D. Butler 1909-4-4 585 Siskiyou Yreka Comment
  POM72152  Plagiobothrys nothofulvus Geo. D. Butler 1910-4-10 1164 Siskiyou Near Yreka. Comment
  JEPS6469  Plantago eriopoda Rimo Bacigalupi and G. T. Robbins 1954-8-13 4802 Siskiyou 1.9 mi s Gazelle; Shasta Valley 853 Comment
  HSC58932  Plantago lanceolata Marvin Butler 1971-8-11 304 Siskiyou Near Cyclone Gap, close to town of Cave Junction 1677 Comment
  HSC22310  Platanthera dilatata var. leucostachys J. O. Sawyer 1969-7-26 1584 Siskiyou SE facing slope near S Sugar Creek 1700 Comment
  HSC76930  Platanthera dilatata var. leucostachys K. T. Stillman 1976-8-7 214 Siskiyou Marble Mtn. Wilderness Area. 1951 Comment
  HSC97405  Platanthera dilatata var. leucostachys A. Montalvo, J. D. Ackerman 1974-8-17 422 Siskiyou West slope of Preston Peak, 0.5 mi. N of Rattlesnake Meadows 1646 Comment
  UC429327  Platanthera leucostachys Milo S. Baker Aug 1897 136 Siskiyou Payne's Springs Comment
  HSC21996  Platanthera sparsiflora J. O. Sawyer 1969-8-5 1784 Siskiyou Along Sugar Creek. 1921 Comment
  HSC68340  Platanthera sparsiflora Maralyn A. Renner 1980-7-4 1429 Siskiyou Clear Creek Trail, N of Trout Camp. 1067 Comment
  HSC68463  Platanthera sparsiflora Maralyn A. Renner 1980-7-4 1458 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  JEPS109706  Platanthera sparsiflora Dean W. Taylor 2002-7-20 18253 Siskiyou Forest Road 17 ca. 3.3 miles west (above) junction with Stewart Springs Road, Parks Creek 1524 Comment
  UC164461  Plectritis macrocera Geo. D. Butler 1910-3-24 1139 Siskiyou Shasta River hills Comment
  UC573575  Plectritis macrocera M. H. Mitchell 1936-5-8 2 Siskiyou 2 mi e of Schonchin Butte 1371 Comment
  UC618751  Pleuricospora fimbriolata W. Bridge Cooke 1938-8-5 11460 Siskiyou Sisson Southern Trail, Canadian 1828 Comment
  CAS-BOT-BC261036  Poa Melissa A. Berry 1957-7-7 s.n. Siskiyou China Mt. divide, near Gazelle-Callahan Road 2286 Comment
  CAS-BOT-BC254778  Poa bolanderi John Thomas Howell 1937-7-22 13321 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC254781  Poa bolanderi Geo. D. Butler 1910-7-12 1750 Siskiyou Shackleford Creek Comment
  SEINET10659111  Poa bolanderi George D. Butler 1910-7-12 Butler 1750 Siskiyou Dry shady woods, Shackleford Creek. Comment
  CHSC88101  Poa bulbosa Jenny Marr 1993-7-1 111 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC450473  Poa bulbosa Morris Halperin 1931-4-28 325 Siskiyou near Yreka (Schulmeyer's (Geo. Gray's) Ranch) Comment
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May 9 2008
  SEINET10509470 Image available Poa howellii var. chandleri Harley P. Chandler Chandler 1703 Siskiyou Ridges and meadows near Marble Mountain. 1524 Comment
  HSC43045  Poa pratensis J. O. Sawyer, Ken Stillman 1976-5-30 2761 Siskiyou Along Specimen Creek. 915 Comment
  JEPS81692  Poa pringlei L. R. Heckard 1967-8-13 1710 Siskiyou e flank Mt Eddy (just below summit fell-field) 2727 Comment
  RSA126059  Poa secunda I. L. Wiggins 1955-7-27 13527 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area. 2043 Comment
  CHSC93550  Poa secunda subsp. juncifolia Lowell Ahart; John Dittes 2005-6-9 12006 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CAS-BOT-BC243218  Poa secunda subsp. secunda A. A. Heller 1919-6-25 13266 Siskiyou Compton's prairie, N base of Mount Eddy 1158 Comment
  HSC34000  Poa secunda subsp. secunda J. P. Smith 1974-5-25 7479 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  HSC41369  Poa secunda subsp. secunda J. P. Smith 1976-5-5 8708 Siskiyou Road between Forks of Salmon and Somes Bar. 366 Comment
  UC196956  Poa secunda subsp. secunda Geo. D. Butler 1910-4-19 1200 Siskiyou Yreka Comment
  UC197103  Poa secunda subsp. secunda Geo. D. Butler 1910-7-12 1749 Siskiyou Shackleford Creek 1219 Comment
  UCD91627  Poa secunda subsp. secunda A. A. Heller 1920-6-28 13402 Siskiyou Beyond Wagon Creek falls, east side of Mt. Eddy. 1524 Comment
  HSC39632  Poa wheeleri J. P. Smith, J. O. Sawyer 1972-6-30 5647 Siskiyou Ridge W of Little Duck Lake. 2378 Comment
  UCD52745  Podagrostis humilis Beecher Crampton 1956-8-22 3860 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  UC1112247  Pogogyne zizyphoroides Rimo Bacigalupi with S. Galen Smith 1957-6-26 5940 Siskiyou ca. 2 miles North of Weed along Highway 99 1036 Comment
  JEPS69921  Polemonium californicum Geo. D. Butler 1908-8-8 29 Siskiyou foot of bluff Marble Valley 1676 Comment
  UC933398  Polemonium californicum Annie M. Alexander and Louise Kellogg 1948-9-9 5608 Siskiyou Taylor Lake Siskiyou Mountains, Taylor Lake 1828 Comment
  UC1025129  Polemonium pulcherrimum subsp. pulcherrimum Douglas Barbe 1955-8-1 325 Siskiyou summit of Mt. Bolivar Klamath Mountains, Scott Mtns, summit Mt. Bolivar (Scott Mtns., Klamath Mountains) 2468 Comment
  UC107054 Image available Polemonium pulcherrimum subsp. pulcherrimum Copeland 1903-7-16 3515 Siskiyou Mt. Shasta 3169 Comment
  SBBG112732  Polemonium pulcherrimum var. pilosum E. White 1998-8-26 698 -2 Siskiyou near Helen Lake, Mt Shasta; T41N, R3W, S20, NE/4 of NE/4 3169 Comment
  CAS-BOT-BC170329  Polygala cornuta var. cornuta Alice Eastwood 1917-9-2 6707 Siskiyou Shasta Springs Comment
  CAS-BOT-BC170334  Polygala cornuta var. cornuta R. E. Frenkel 1964-7-15 689 Siskiyou On Everitt Memorial road near Mount Shast, 1.7 miles north of McCloud River RR crossing. 1290 Comment
  HSC17463  Polygonum aviculare Geo. D. Butler 1908-6-24 181 Siskiyou Butler's Ranch near Yreka Comment
  UC54222  Polygonum bistortoides H. M. Hall and E. B. Babcock June, 1903 4070 Siskiyou Sisson Sierra Nevada Mountains, Mount Shasta (in meadows) 1066 Comment
  JEPS74541  Polygonum davisiae W. J. Ferlatte 1966-7-6 186 Siskiyou Caribou Mtn. Trinity Alps 2468 Comment
  UC1408821  Polygonum davisiae Frederick W. Oettinger 1968-8-4 396 Siskiyou Crapo Peak ridge trail break Salmon Mountains, Marble Mountain Wilderness Area (w Siskiyou Co.) 2194 Comment
  OBI72046  Polygonum douglasii Barbara Ertter 1990-7-14 9310 Siskiyou E side Mt. Eddy ca 4 airmiles due W of Mt Shasta City, at streamlet ner end of FR 41N53 ca 1 mi N of morgan Meadows 1676 Comment
  UC1191241  Polygonum douglasii subsp. douglasii Herbert L. Mason 1948-7-17 13602 Siskiyou Eastern Grass Lake Comment
  UC164462  Polygonum douglasii subsp. douglasii Geo. D. Butler 1910-7-9 1706 Siskiyou Shackleford Creek 1219 Comment
  POM211468  Polygonum minimum Louis C. Wheeler 1934-8-22 3207 Siskiyou Siskiyou Mts: Dead Cow Creek. 1829 Comment
  HSC32758  Polygonum minimum Frederick W. Oettinger 1968-8-11 471 Siskiyou Marble Mtn. Wilderness Area, NE side of creek bed, Tom Taylor Cabin 2043 Comment
  SEINET3399369 Image available Polygonum minimum Joseph P. Tracy 1935-8-7 14618 Siskiyou Devil's Canyon Mts, at head of White Creek Comment
  SEINET13711311  Polygonum polygaloides subsp. confertiflorum Lowell William Ahart, Lowell William Ahart 1998-1 9335 Siskiyou NE of Weed and E of Grass Lake at Gravel Pit on S Side of Tennant Rd. (T44N, R1W, sec 32, NW 1/4) 4600 Ft. 1402 Comment
  UCD100665  Polygonum sawatchense subsp. sawatchense J. M. Tucker; L. K. Mann 1963-8-17 3742 Siskiyou Beside trail from Red Rock Valley to top of ridge to the south, Marble Mountain Wilderness Area. 1859 Comment
  CAS-BOT-BC383121  Polygonum shastense Andrew Townesmith; Karen M. Meyer 2007-7-30 867 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 2399 Comment
  CAS-BOT-BC95032  Polygonum shastense R. C. Wenk 2008-7-24 912 Siskiyou SW side of Mount Shasta, Panther Meadow 2255 Comment
  HSC28660  Polygonum shastense Frederick W. Oettinger 1968-8-22 597 Siskiyou Marble Mtn. Wilderness Area, slope between English Peak and Diamond Lake 2195 Comment
  RSA233674  Polygonum shastense Robert F. Thorne 1969-8-10 38987 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  HSC77491  Polygonum spergulariiforme L. P. Janeway 1983-7-7 389 Siskiyou Just NW behind West Branch Guard Sta. 701 Comment
  CAS-BOT-BC76832  Polypodium glycyrrhiza Lincoln Constance; Reed C. Rollins 1942-5-13 2908 Siskiyou Klamath River, 4 miles east of Seiad. 457 Comment
  HSC10848  Polypogon monspeliensis R. C. Wunner 1965-9-1 502 Siskiyou Lava Beds National Monument. NW boundary at end of dike. By shore of Tule Lake. 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
  CAS-BOT-BC76766  Polystichum imbricans subsp. imbricans William Bridge Cooke 1938-9-2 11594 Siskiyou Mount Shasta - along the Sisson Southern Trail on a lava flow. Comment
  HSC77280  Polystichum imbricans subsp. imbricans L. P. Janeway 1983-8-28 625 Siskiyou Along USFS 18N33 1 mi. from Grayback Rd. 1037 Comment
  HSC79135  Polystichum kruckebergii C. J. Thomas 1983-10-1 84 Siskiyou N side of Black Mtn. in Marble Mtn. Wilderness 1976 Comment
  JEPS83823  Polystichum lemmonii Wayne Roderick July 1976 Siskiyou near Lily Pad Lake (vicinity of Cook and Green Pass); Siskiyou Mts. 1828 Comment
  UC2026484  Polystichum lemmonii Louis C. Wheeler 1958-8-20 7411 Siskiyou Siskiyou Mountains. Red Butte, southeast side. Comment
  HSC79144  Polystichum lemmonii C. J. Thomas 1983-10-1 81 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  POM212871  Polystichum lemmonii L. C. Wheeler 1934-8-14 11415 Siskiyou North side White Mt. About rocks, dry north slope. 1768 Comment
  UC1034653  Polystichum lemmonii Douglas Barbe 1955-7-26 287 Siskiyou below summit Scott Mt.; Klamath Mts. 1981 Comment
  UC1408837  Polystichum lonchitis Frederick W. Oettinger 1968-9-2 661 Siskiyou sw of Upper English Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1874 Comment
  RSA331958  Polystichum scopulinum W. Wisura, Dave Kelly 1985-7-31 4078 Siskiyou Kangaroo Lake, Scott Mtns.; on rocks above and beyond the granite rocks near campground Comment
  UC642545  Polystichum scopulinum W. R. Maxon 1939-7-26 13744 Siskiyou w boreal spring above Panther Creek Meadows; Mt. Shasta Comment
  HSC19902  Populus tremuloides R. C. Wunner 1965-7-13 384 Siskiyou Lava Beds National Monument, Indian Well prefab near maintenance area 1433 Comment
  SEINET10344392  Populus trichocarpa G. D. Butler 1910-4-16 1177 Siskiyou Yreka Creek. Comment
  SEINET10460782  Porterella carnosula H. W. Furlong Furlong s.n. Siskiyou Northern California, Summit to Ager; Ager is about 10 mile (airline) south of the Oregon border and about 11 miles (by road) north of Montague Comment
  UC163719  Portulaca oleracea Geo. D. Butler 1908-7-15 1061 Siskiyou near Yreka Comment
  RSA105419  Potamogeton foliosus Douglas Barbe 1955-6-29 51 Siskiyou 4.1 miles southeast of Etna on the Eastside Road. 915 Comment
  UC1100098  Potamogeton richardsonii Verne Grant, Irving Schneider 1947-8-26 8288 Siskiyou 1/2 mi w of Tulelake Comment
  SEINET10501887  Potamogeton richardsonii Katherine L. Morris, Melvin L. Conrad; David B. Dunn 1973-6-2 Morris 343 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy 263. Comment
  HSC103152  Potamogeton robbinsii Dana York 2014-10-11 3227 Siskiyou Klamath National Forest, Marble Mountain Wilderness, in Deep Lake. 1929 Comment
  HSC90541  Potentilla breweri Jennifer Whipple 1976-7-8 1376 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC648279  Potentilla drummondii John Thomas Howell 1939-8-2 14906 Siskiyou Spirit Lake Marble Mts. 1828 Comment
  CHSC1570  Potentilla flabellifolia V. Holt 1942-8-6 Siskiyou Caribou Lake, Trinity Alps. 2438 Comment
  HSC66  Potentilla flabellifolia William J. Ferlatte 1967-7-25 732 Siskiyou Caribou Basin 1982 Comment
  HSC29380  Potentilla flabellifolia Frederick W. Oettinger 1969-7-13 1009 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: S of Upper English Lake 1951 Comment
  RSA184695  Potentilla glandulosa subsp. ashlandica Gilbert Muth 1966-7-17 405 Siskiyou Trail to lookout, Marble Mountains 1829 Comment
  CDA26100  Potentilla gracilis subsp. nuttallii T. C. Fuller 1958-6-19 1822 Siskiyou Highway 99, 3 miles south of Gazelle. 0 Comment
  POM34598  Potentilla gracilis var. fastigiata Geo. D. Butler 1910-5-28 1419 Siskiyou Shasta Valley. Comment
  RSA85694  Potentilla gracilis var. fastigiata E. E. Stanford 1930-8-14 2079 Siskiyou Below summit of Sonora Pass. 2896 Comment
  CHSC93542  Potentilla millefolia Lowell Ahart; John Dittes 2005-6-10 12095 Siskiyou Steep springy slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  UCR38390  Potentilla millefolia G. R. Ballmer, G. F. Pratt 1985-6-19 s.n. Siskiyou Trinity Mtns, Gumboot Lake, west of Dunsmuir 1829 Comment
  CAS-BOT-BC158203  Prunus emarginata A. A. Heller 1920-8-12 13511 Siskiyou Two miles from Sisson on the Mt. Shasta trail Comment
  HSC23589  Prunus emarginata J. O. Sawyer 1969-9-12 2006 Siskiyou Hanging valley N of Wildcat Peak 2012 Comment
  UC165439  Prunus emarginata Geo. D. Butler 1910-5-1 1256 Siskiyou Humbug Mountain Comment
  UC618731  Prunus emarginata W. Bridge Cooke 1938-6-17 11011 Siskiyou Mount Shasta, Sisson Southern Trail Sisson Southern Trail; Mount Shasta, Sisson Southern Trail 1371 Comment
  SEINET7347118  Prunus emarginata E. K. Balls 1950-5-15 14701 Siskiyou Lava Beds National Monument, below Indian Well Public Camp 1402 Comment
  UCSB12914  Prunus emarginata Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Mountains 1127 Comment
  UC673252  Prunus subcordata Lincoln Constance, Reed C. Rollins 1942-5-14 2922 Siskiyou 3 mi w of Yreka (Road to Walker Post Office); Klamath-Siskiyou Region 1219 Comment
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Mar 27 2013
  CAS-BOT-BC151235  Prunus virginiana var. demissa Cyril Gammon 1951-8-14 130 Siskiyou Happy Camp Comment
  JEPS24783  Prunus virginiana var. demissa Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6791 Siskiyou just sw of Mount Shasta Town ((Sisson) and road to Castle Lake, at junction old Hwy 99) 1036 Comment
  CHSC63596  Pseudognaphalium stramineum Vernon H. Oswald; Lowell Ahart 1994-8-10 6451 Siskiyou Pilgrim Creek Rd. (FS13) at Mud Creek, 2.7 mi N of Hwy. 89, ca. 4.5 mi (air) NE of McCloud. 1097 Comment
  CAS-BOT-BC239812  Pseudoroegneria spicata Dr. E. B. Copeland 1903-7-4 3540 Siskiyou Klamathon Comment
  UC1130634  Pseudoroegneria spicata subsp. spicata H. S. Yates 1936-6-21 5810 Siskiyou 2 mi nw of Paradise Gragg 731 Comment
  HSC91396  Pseudostellaria jamesiana Jennifer Whipple 1976-7-9 1380 Siskiyou Dale Creek drainage on the N face of Mount Eddy. 2195 Comment
  CHSC88367  Psilocarphus oregonus Jenny Marr 1993-7-1 173 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC375217  Pterospora andromedea Geo. D. Butler 1908-7-20 35 Siskiyou Long Gulch; head, near Yreka Comment
  CDA38859  Pterospora andromedea J. R. Grisham 1968-10-9 s.n. Siskiyou Ball Mountain Road. 0 Comment
  UC1540180  Puccinellia nuttalliana Dean W. Taylor 1987-8-9 9290 Siskiyou 8.3 mi w Highway 139 (along Highway 161 (Oregon border)); Lower Klamath National Wildlife Refuge 1249 Comment
  UC1738836  Puccinellia nuttalliana Dean W. Taylor 1987-8-9 9288 Siskiyou along Highway 161 8.3 mi W of Hwy 139, Lower Klamath Lake National Wildlife Refuge 1249 Comment
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Oct 8 2007
  CAS-BOT-BC147901  Purshia tridentata var. tridentata L. R. Abrams; J. T. Benson 1924-5-9 10173 Siskiyou Near Black Butte Comment
  UC61036  Purshia tridentata var. tridentata Geo. B. Grant Sep 1902 5154 Siskiyou Sisson 914 Comment
  CAS-BOT-BC465506  Pyrola asarifolia A. A. Heller 1921-6-28 13559 Siskiyou At the State Teachers College near Mt. Shasta Comment
  RSA0010406  Pyrola crypta Diana D. Jolles 2013-7-18 598 Siskiyou Marble Mountain Wilderness just on the SE side of Hancock Lake (a sky lake) in forest between meadow and the lake. 1942 Comment
  HSC69042  Pyrola dentata Maralyn A. Renner 1980-8-7 2351 Siskiyou Klamath National Forest, ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  RSA0084311  Pyrola dentata Diana D. Jolles, Erik M. Beaston 2011-8-26 483 Siskiyou Klamath National Forest, Alcohol Crater. 2113 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
  CAS-BOT-BC94554  Pyrola picta R. C. Wenk 2006-9-2 560 Siskiyou trail to Caribou Lakes from Big Flat Meadow, by side of trail in coniferous forest below Browns Meadow 2011 Comment
  CAS-BOT-BC466141  Pyrola picta John Thomas Howell 1939-8-5 15073 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC466143  Pyrola picta W. R. Dudley 1893-6-23 s.n. Siskiyou Trail from Castle Crags to Tavern near Sissons Comment
  HSC36657  Pyrola picta Brent Whiteley 1975-6-28 87 Siskiyou 915 Comment
  HSC72275  Pyrrocoma racemosa var. pinetorum J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8967 Siskiyou Hwy 3, 2.5 mi. N of Siskiyou-Trinity County line Comment
  HSC85676  Pyrrocoma racemosa var. pinetorum J. P. Smith 1980-8-24 10344 Siskiyou Klamath National Forest. Forest Rd. 40N03, 0.3 mi. from its junction with State Route 3; 2.72 mi. from county line 1463 Comment
  JEPS109773  Pyrrocoma racemosa var. pinetorum Dean W. Taylor 2002-7-27 18279 Siskiyou Highway 3 2.3 miles North of Scott Mountain Summit 1386 Comment
  UC164395  Quercus chrysolepis Geo. D. Butler 1908-8-11 231 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC94651  Quercus garryana Copeland 1903-7-14 3522 Siskiyou Klamathon Comment
  CAS-BOT-BC94661  Quercus garryana Wm. F. Herrin 1919-9-1 s.n. Siskiyou near Dunsmuir Comment
  JEPS37935  Quercus garryana W. L. Jepson 1907-7-22 2955 Siskiyou Hamburg, w Siskiyou County Klamath River Comment
  CAS-BOT-BC62758  Quercus garryana var. breweri John Thomas Howell 1939-8-2 14918 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  RSA237383  Quercus garryana var. breweri Frederick W. Oettinger 1968-9-8 792 Siskiyou 0.1 mi due north of English Lake outlet. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  UCD46152  Quercus garryana var. breweri John M. Tucker 1972-8-8 4245 Siskiyou California, Siskiyou Co.; Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 mi. west-southwest of Marble Valley Guard Station (extreme southeast corner of Section 20, R. 11W., T. 42N); Comment
  SEINET3134590  Quercus garryana var. breweri G. L. Stebbins 1972-7-3 sn Siskiyou N of Seiad Valley. 0.5 mi. E of Cook and Green Pass 1494 Comment
  UC338624  Quercus kelloggii unknown Siskiyou near Shasta Comment
  UCD40420  Quercus kelloggii Rodney Gale Myatt 1971-9-22 1193 Siskiyou Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. Comment
  CAS-BOT-BC104344  Quercus sadleriana Marion Ownbey; Fred G. Meyer 1940-7-8 2230 Siskiyou Near summit of Siskiyou Mountains, 20 miles N of Happy Camp Comment
  CAS-BOT-BC104350  Quercus sadleriana Doris K. Kildale 1929-6-20 8613 Siskiyou East spur of Preston Peak above Rockefeller Lake 2133 Comment
  CAS-BOT-BC104358  Quercus sadleriana Lester Rowntree 1934-5-12 s.n. Siskiyou Happy Camp Road top of divide Comment
  OBI40303  Quercus sadleriana John Thomas Howell, Gordon H. True 1972-6-8 s.n. Siskiyou S of summit on road from Takilmato Happy Camp Comment
  RSA152195  Quercus sadleriana Reino Alava, Aloha Alava, Rimo C. Bacigalupi 1958-9-3 2454 Siskiyou At the junction of the road to Poker Flat and the road from Happy Camp to Takilma. 1377 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
  SFV895  Quercus sadleriana S. L. Holloway 1963-10-12 77 Siskiyou Marble Mountain Wilderness Area. Junction of Red Rock Valley Trail and Canyon Creek Trail. 1341 Comment
  UC1222293  Quercus sadleriana Joseph P. Tracy 1950-7-18 19215 Siskiyou the whole route from Flint Valley to Prospect Hill Comment
  UC705929  Quercus sadleriana Marion Ownbey, Fred G. Meyer 1940-7-8 2230 Siskiyou 20 mi n Happy Camp (near summit Siskiyou Mountains); Siskiyou Mountains Comment
  UC971916  Quercus sadleriana Herbert L. Mason 1950-7-16 14060 Siskiyou road from Happy Camp, California to Waldo, Oregon Comment
  UCD47230  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 C Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte-Siskiyou County line, California. 1554 Comment
  UCD47245  Quercus sadleriana Reino Alava; Aloha Alava, Rimo Bacigalupi 1958-9-3 2454 Siskiyou At the junction of the road to Poker Flat and the road from Happy Camp to Takilma. 1376 Comment
  CAS-BOT-BC104617  Quercus vacciniifolia William Bridge Cooke 1941-9-16 16320 Siskiyou along the Castle Lake Road 1219 Comment
  CAS-BOT-BC104626  Quercus vacciniifolia Alice Eastwood 1921-6-24 10759 Siskiyou Castle Lake Comment
  CAS-BOT-BC104641  Quercus vacciniifolia B. Crampton 1956-8-21 3847 Siskiyou canyon of the Sacramento River just above junction of the North Fork with south and Middle Forks Comment
  POM166591  Quercus vacciniifolia E. B. Copeland 1903-8-17 3930 Siskiyou Mt. Eddy. 1433 Comment
  UC338543  Quercus vacciniifolia unknown 1888-8-24 Siskiyou near Castle Lake (near Sisson's) Comment
  UCD135381  Raillardella pringlei Bruce G. Baldwin 1986-7-21 617 Siskiyou Shasta-Trinity National Forest, around 0.25 miles north of Gumboot Lake along gumboot Creek (near Mount Eddy). Comment
  UC1733714  Ranunculus Frank Gould, Kay H. Beach 1940-5-15 1226 Siskiyou Bull Meadows Comment
  SBBG25915  Ranunculus alismifolius D. Myrick 1966-8-12 1541 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  UCR93355  Ranunculus alismifolius Kathy Harper, Dane Karr 1994-6-16 s.n. Siskiyou Sierra Nevada Mtns, 31 mi. NE of Bartle, meadow at junction of Medicine Lake Rd & road to Schonchin Springs, at Headquarters Camp 1982 Comment
  UC1265404  Ranunculus aquatilis var. capillaceus Frederick W. Oettinger 1969-9-5 1679 Siskiyou Abbot's Lake Salmon Mountains, Marble Mountain Wilderness Area (high lake basins in vicinity of English Peak, w Siskiyou Co.) 1767 Comment
  RSA715780  Ranunculus cymbalaria var. saximontanus L. Ahart, John Dittes 2005-6-9 12040 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  RSA184769  Ranunculus eschscholtzii var. suksdorfii Gilbert Muth 1966-7-8 355 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  HSC18127  Ranunculus occidentalis var. dissectus Geo. D. Butler 1909-4-25 683 Siskiyou Quartz Valley Comment
  HSC40655  Ranunculus occidentalis var. occidentalis J. P. Smith, Steve Selva 1970-6-16 4023 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1159 Comment
  SBBG2264  Ranunculus orthorhynchus var. orthorhynchus H. and M. Dearing 1939-6-5 3555 c Siskiyou E of McCloud 1066 Comment
  RSA176792  Ranunculus testiculatus Peter H. Raven 1963-5-19 18400 Siskiyou Sagebrush covered flats just S of California State line on Hwy 97, N of Mcdoel Comment
  RSA237977  Raphanus sativus Frederick W. Oettinger 1969-8-14 1367 Siskiyou Near English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. Comment
  CAS-BOT-BC56115  Rhamnus ilicifolia Louis C. Wheeler 1934-11-7 3360 Siskiyou Cottville, Klamath River, Mt. Diablo Mer. 566 Comment
  HSC100305  Rhamnus ilicifolia J. P. Smith, & J. O. Sawyer 2011-6-25 13278 Siskiyou Along Eastside Callahan - McConaughy Gulch Rd., N of Callahan. Comment
  UC1409293  Rhamnus purshiana Frederick W. Oettinger 1968-8-23 617 Siskiyou midway down the steep spillway from Diamond Lake to Upper English Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness, English Peak 1920 Comment
  JEPS41960  Rhamnus rubra W. L. Jepson 1914-8-14 6171 Siskiyou Dunsmuir 670 Comment
  CHSC57405  Rhus aromatica L. P. Janeway 1984-4-21 859 Siskiyou Garvey Bar, south side Klamath River just east of Humbug Point. On flat above river. 594 Comment
  SEINET8042111  Rhus aromatica G. D. Butler 1910-6-29 1615 Siskiyou Near Yreka. Comment
  CAS-BOT-BC438001  Ribes Alice Eastwood 1912-7-19 1226 Siskiyou Mount Shasta Comment
  CAS-BOT-BC92537  Ribes binominatum John Thomas Howell 1939-8-3 14958 Siskiyou Spirit Lake Marble Mountains. 1828 Comment
  SFV1613  Ribes cereum J. Major 1961-7-14 635 Siskiyou Mount Shasta, Panther Creek. 1790 Comment
  CAS-BOT-BC108766  Ribes cereum 1940-6-2 s.n. Siskiyou West of Indian Wells Ranger Station. Comment
  RSA0024866  Ribes cereum William J. Ferlatte 1966-7-6 187 Siskiyou Caribou Basin. 1982 Comment
  UC1034607  Ribes inerme var. inerme Douglas Barbe 1955-6-29 42 Siskiyou 1.8 mi e Callahan (s bank of river); Klamath Mountains, Scott River 975 Comment
  CAS-BOT-BC168864  Ribes inerme var. klamathense A. A. Heller 1919-6-27 13393 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC168870  Ribes inerme var. klamathense E. Bethel 1923-6-20 1053 Siskiyou Weed Comment
  UC165268  Ribes inerme var. klamathense Geo. D. Butler 1910-4-9 1160 Siskiyou Yreka Comment
  CAS-BOT-BC173284  Ribes lacustre John Thomas Howell 1937-7-25 13459 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC29431  Ribes lacustre Frederick W. Oettinger 1968-8-6 426 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  HSC45028  Ribes lacustre Maralyn O'Meara 1974-5-25 403 Siskiyou Along road to Duck Lakes trail 1402 Comment
  JEPS80601  Ribes lacustre Gilbert Muth 1966-7-29 458 Siskiyou Marble Valley Marble Mt. Wilderness Area 1795 Comment
  UC1408860  Ribes lacustre Frederick W. Oettinger 1968-8-6 426 Siskiyou se corner Hancock Lake; Salmon Mountains, Marble Mountains Wilderness Area 1935 Comment
  RSA0021101  Ribes lacustre Gilbert Muth 1966-7-29 458 Siskiyou Marble Valley, by waterfall, Marble Mountains. 1796 Comment
  SEINET12220211  Ribes lacustre H. P. Chandler 1901-1 1561 Siskiyou near Marble Mountain, North Coast Ranges 1829 Comment
  CAS-BOT-BC173394  Ribes lobbii Geo. D. Butler 1910-7-14 1782 Siskiyou Shackleford Creek Comment
  HSC44979  Ribes lobbii J. O. Sawyer 1978-6-21 3282 Siskiyou Marble Mtn. Wilderness Area, along trail N of Clear Lake 1951 Comment
  UC165921  Ribes lobbii Geo. D. Butler 1910-7-14 1782 Siskiyou Shackelford Creek Comment
  RSA0021143  Ribes lobbii P. A. Munz 1952-7-2 17888 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1524 Comment
  RSA0021151  Ribes lobbii Geo. D. Butler 1910-5-30 1442 Siskiyou Humbug Creek. Comment
  CAS-BOT-BC212483  Ribes marshallii Gilbert Muth 1966-7-8 360 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  UCD102272  Ribes marshallii Roman Gankin; Brewer, Hildreth, and Milam 1965-8-10 605 Siskiyou Summit of Indian Creek Road, 3.5 miles south of California-Oregon state line. Comment
  SEINET13942692 Image available Ribes nevadaense A. A. Heller 2015-1 12244 Siskiyou Wagon creek at the foot of Mt. Eddy, elev about 3700 ft 1128 Comment
  CAS-BOT-BC219267  Ribes nevadense A. A. Heller 1905-6-5 7967 Siskiyou Near Shasta Springs Comment
  SD76163  Ribes nevadense Helen V. Witham 1969-10-7 548 Siskiyou Northwest face, granite cliffs above Kangaroo Lake, Scott Mts. 2100 Comment
  RSA0023150  Ribes nevadense John Dourley, Walter Wisura 1982-10-17 3884 Siskiyou Mill Creek Ridge, ca. 18 mi N of Happy Camp, along old road up Indian Creek. 1524 Comment
  HSC29451  Ribes roezlii var. cruentum Frederick W. Oettinger 1969-9-5 1686 Siskiyou Marble Mtn. Wilderness Area, next basin E of Salamander Pond, Abbotts Lake region 1768 Comment
  CAS-BOT-BC200007  Ribes roezlii var. cruentum Doris K. Kildale 1929-7-20 8543 Siskiyou South Fork of Indian Creek near Gilmores Comment
  HSC29414  Ribes sanguineum Frederick W. Oettinger, R. F. Thorne 1969-8-7 1280 Siskiyou SE of English Lake 1829 Comment
  UC165922  Ribes sanguineum Geo. D. Butler 1908-8-4 258 Siskiyou head Shackleford Creek Comment
  UC375359  Ribes sanguineum Geo. D. Butler 1908-8-10 262 Siskiyou Shackleford Creek Comment
  RSA0019536  Ribes sanguineum Louis C. Wheeler 1934-6-12 2695 Siskiyou North Hungry Creek, Siskiyou Mts. 1311 Comment
  CAS-BOT-BC173906  Ribes velutinum Elmer I. Applegate 1898-5-15 2126 Siskiyou Klamath River. Between Shovel Creek & Fall Creek 853 Comment
  CAS-BOT-BC168799  Ribes viscosissimum Gilbert Muth 1966-7-17 380 Siskiyou Along trail to Marble Mountain Lookout, Marble Mts. 1813 Comment
  HSC22201  Ribes viscosissimum J. O. Sawyer 1968-7-22 533 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  UC618601  Ribes viscosissimum W. Bridge Cooke 1938-6-17 11005 Siskiyou Sisson Southern Trail Mount Shasta Comment
  CAS-BOT-BC362935  Rigiopappus leptocladus Alice Eastwood 1912-7-20 1261 Siskiyou Hornbrook Comment
  CAS-BOT-BC74662  Rorippa curvisiliqua Louis C. Wheeler 1934-7-3 2872 Siskiyou Klamath Forest. Soda Creek. 1676 Comment
  CHSC75693  Rorippa curvisiliqua Vernon H. Oswald; Lowell Ahart 1999-7-5 9805 Siskiyou Gazelle-Callahan Hwy. 11.3 mi west of Gazelle, 0.2 mi east of summit of Gazelle Mtn. 1188 Comment
  UC165305  Rorippa curvisiliqua Geo. D. Butler 1908-7-16 118 Siskiyou near Yreka Comment
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Feb 18 2009
  CDA25118  Rorippa curvisiliqua T. C. Fuller 1962-8-3 9512 Siskiyou Siskiyou Mountains: Gravel bar of Beaver Creek at the mouth of Raggedass Gulch, 5 miles north of the Klamath River. 0 Comment
  SEINET5760509 Image available Rorippa curvisiliqua var. orientalis H. E. Brown 1897-1 573 Siskiyou S side of Mount Shasta 1524 Comment
  RSA0005646  Rosa copelandii E. B. Copeland 1903-9-8 3875 Siskiyou Mt. Eddy. 1463 Comment
  CAS-BOT-BC146767  Rosa gymnocarpa Geo. D. Butler 1910-5-30 1437 Siskiyou Humbug Mt. 1219 Comment
  RSA237791  Rosa gymnocarpa Frederick W. Oettinger 1967-7-30 223 Siskiyou Outlet stream N end of Abbotts Lake, about 200 yards down from the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  SEINET3111161  Rosa gymnocarpa Steve Selva, Roger Jensen 1974-8-26 55 Siskiyou Along Sugar Lake trail. Comment
  CAS-BOT-BC147060  Rosa pisocarpa A. A. Heller 1915-7-18 12112 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC147074  Rosa pisocarpa A. A. Heller 1919-6-27 13254 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  RSA105407  Rosa pisocarpa G. D. Barbe 1955-7-4 95 Siskiyou 10 miles S of Etna on French Creek road. 945 Comment
  UC164305  Rosa pisocarpa Geo. D. Butler 1909-9-26 973 Siskiyou along creek near Yreka Comment
  HSC27228  Rosa rubiginosa J. P. Smith, J. O. Sawyer 1971-9-18 4803 Siskiyou 0.2 mi. W of the jct. of Hwy. 3 and Rd. 8 N of Callahan. Comment
  SDSU9231  Rosa spithamea D. F. Howe 1977-7-1 4974 Siskiyou Scott Mountain Creek Road. 1097 Comment
  CAS-BOT-BC149744  Rosa woodsii subsp. ultramontana Doris K. Kildale 1930-5-31 9803 Siskiyou Island in Klamath River near Hornbrook 609 Comment
  CAS-BOT-BC147987  Rubus leucodermis Alice Eastwood 1912-7-23 1328 Siskiyou Cantara Comment
  CAS-BOT-BC147320  Rubus parviflorus H. A. Thomas; J. H. Thomas 1954-7-23 4463 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Vicinity of Blind Horse Creek 1036 Comment
  HSC69026  Rubus parviflorus Maralyn A. Renner 1980-7-28 2189 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  CAS-BOT-BC157169  Rubus ursinus Alice Eastwood 1912-7-17 1186 Siskiyou Sisson Comment
  CAS-BOT-BC363173  Rudbeckia californica Alice Eastwood 1912-8-30 2047 Siskiyou Mount Eddy Comment
  JEPS16949  Rudbeckia klamathensis Peter H. Raven 1956-9-5 10466 Siskiyou North Fork of the Sacramento River 1584 Comment
  UC1409248  Rumex acetosella Frederick W. Oettinger 1968-8-10 466 Siskiyou e side Hancock Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1889 Comment
  UC1483467  Rumex acetosella Maralyn A. Renner 1980-7-24 2040 Siskiyou Lily Pad Lake Klamath National Forest, Seiad Valley Quad. 1767 Comment
  UC618813  Rumex acetosella W. Bridge Cooke 1938-8-21 11549 Siskiyou Shasta Alpine Lodge Mount Shasta, Horse Camp 2438 Comment
  HSC39753  Rumex acetosella J. O. Sawyer 1969-8-1 1619 Siskiyou Along road 41N14 at trail to Eaton Lake 1402 Comment
  RSA68896  Rumex acetosella A. E. Culbertson 1943-7-12 61 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000' backwall; 14 miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mts.; 2000 ft. above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CAS-BOT-BC433407  Rumex crispus L. R. Short 1933-6-16 50 Siskiyou Klamath National Forest. Klamath River 609 Comment
  CDA23189  Rumex stenophyllus R. Pederson, G. Pederson 1979-10-1 108 Siskiyou Lower Klamath National Wildlife Refuge, beside gate at shop entrance. Comment
  HSC17613  Rumex triangulivalvis R. C. Wunner 1965-6-22 264 Siskiyou Lava Beds NM, 1 mi. NW of Stronghold 1220 Comment
  HSC44957  Sagina saginoides J. O. Sawyer 1978-6-16 3228 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  UC166121  Sagina saginoides Geo. D. Butler 1910-7-12 1764 Siskiyou Shackleford Creek 1219 Comment
  UC166122  Sagina saginoides Geo. D. Butler 1908-8-7 48 Siskiyou lake at head of W. Fork Woolly Creek Comment
  POM228880  Sagittaria cuneata L. C. Wheeler 1935-7-20 3669 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  UC482249  Salix Mrs. H. P. Bracelin 1931-6-19 422 Siskiyou ca. 16 km. n.w. of Shasta City; Mt. Eddy 1500 Comment
  RSA597970  Salix delnortensis Louis C. Wheeler 1963-8-30 8310 Siskiyou Siskiyou Mountains. Second streamlet on east side of Clear Creek below Trout Camp; seen also at first stream on east side. 945 Comment
  RSA184756  Salix eastwoodiae Gilbert Muth 1966-7-8 377 Siskiyou Marble Valley. Marble Mtns. 1793 Comment
  RSA261430  Salix eastwoodiae J. M. Tucker 1963-7-7 3730 -A Siskiyou Paradise Lake Public Camp. At base of Kings Castle on the E side. Marble Mtn Wilderness Area. 1982 Comment
  UC1409264  Salix eastwoodiae Frederick W. Oettinger 1968-9-3 690 Siskiyou near Horse's Hole Horse Range Lake Basin; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1828 Comment
  UC164075  Salix laevigata Geo. D. Butler 1908-7-7 151 Siskiyou Comment
  UC481728  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1931-6-21 474 Siskiyou ca. 13 km. n.w. of Shasta City (1.3 km. e. of Burney Mill, at bridge, n. base Mt. Eddy); Mt. Eddy 1110 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
  CAS-BOT-BC125470  Salix lasiandra var. lasiandra A. A. Heller 1915-7-18 12129 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1371 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-BC107071  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 422 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1500 Comment
  CAS-BOT-BC107073  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 420 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1515 Comment
  CAS-BOT-BC107080  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 831 Siskiyou East side of Mt. Eddy; Wagon Creek above Metcalf ranch house; 8-9 miles N.W. of Mt. Shasta City 1203 Comment
  LA208781  Salix lasiolepis Mrs. H. P. Bracelin; 1931-6-21 469 Siskiyou N side of Mount Eddy, about 21 km NW of Shasta City; 300 km. below Dobkin's Lake 1650.0 Comment
  POM107144  Salix lasiolepis Geo. D. Butler 1909-9-20 1083 Siskiyou Yreka Creek. Comment
  POM219891  Salix lasiolepis H. P. Bracelin 1931-6-19 412 Siskiyou NE side of Mt Eddy. About 16 km NW of Shasta City. Above Metcalf ranch house. 1425 Comment
  SD998  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 Siskiyou Northeast side of Mount Eddy, about 16 km northwest of Shasta City, above Metcalf ranch house 1424 Comment
  POM107034  Salix lucida subsp. lasiandra Geo. D. Butler 1910-4-10 1161 Siskiyou Yreka Creek. Comment
  SBBG29032  Salix lucida subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 423 Siskiyou NE side of Mt Eddy, ca. 16 km NW of Shasta City, above Metcalf ranch house 1350 Comment
  CAS-BOT-BC126152  Salix scouleriana L. E. Smith 1913-3-28 611 Siskiyou Weed Comment
  CAS-BOT-BC126167  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 446 Siskiyou East side of Mount Eddy, about 17 km. northwest of Shasta City; in Wagon Creek Canyon, about 1 km. up from Metcalf ranch house 1170 Comment
  CAS-BOT-BC129027  Salix scouleriana Doris K. Kildale 1929-7-20 8719 Siskiyou Trail to Raspberry Lake, upper Indian Creek 1828 Comment
  SBBG28808  Salix scouleriana Mrs. H. P. Bracelin 1931-6-19 435 Siskiyou N base of Mount Eddy, ca. 10 km NW of Shasta City, E of Metcalf ranch house 1080 Comment
  CAS-BOT-BC128971  Salix sitchensis John Thomas Howell 1937-7-25 13465 Siskiyou Caribout Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC175654  Salsola tragus Carl B. Wolf 1927-8-26 1014 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  JEPS96773  Salvia virgata Dean W. Taylor 1999-8-12 17425 Siskiyou Ager Beswick Road, 0.3 miles South of the crossing of Bogus Creek 822 Comment
  CAS-BOT-BC236483  Sambucus racemosa subsp. racemosa Annetta Carter 1939-8-21 1479 Siskiyou Southeast end of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2042 Comment
  HSC34353  Sambucus racemosa var. racemosa J. P. Smith, J. O. Sawyer 1973-8-14 7304 Siskiyou On trail from Campbell Lake to Cliff Lake. 1829 Comment
  UCD137279  Sambucus racemosa var. racemosa J. P. Smith; Steve Selva 1970-6-16 4066 Siskiyou 8 miles west of Etna on road to Sawyers Bar. 1371 Comment
  HSC42910  Sanicula graveolens J. O. Sawyer, K. T. Stillman 1976-7-2 2821 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  HSC46730  Sanicula graveolens William J. Ferlatte 1974-7-15 1543 Siskiyou Dorleska summit, W side of Grouse Ridge just below summit 2134 Comment
  HSC26222  Sanicula tuberosa J. P. Smith, J. O. Sawyer 1972-5-27 5347 Siskiyou Hwy. 3 near the Scott Mtn. Campground on divide between Scott and Trinity Rivers 1601 Comment
  OBI8761  Sanicula tuberosa Tracey Call, Viola Call 1964-6-20 2275 Siskiyou Scott Mt. campground. 168 Comment
  RSA269281  Saussurea americana T. C. Fuller, D. H. Shaw 1974-9-24 20045 Siskiyou Headwaters of Horse Creek, SW slope of White Mountain, Siskiyou Mountains. Comment
  JEPS84269  Saxifraga aprica L. R. Heckard with J. Hickman et al. 1986-7-17 6465 Siskiyou 5 mi n of the town of Seiad Valley (Trail up Kangaroo Peak, s of Lily Pad Lake); Kangaroo Peak 2011 Comment
  JEPS25834  Saxifraga ferruginea Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7448 Siskiyou about 12 air line mi nw Happy Camp (Poker Flat); Siskiyou Mts., Poker Flat 1524 Comment
  UCR80260  Saxifraga fragarioides L. C. Wheeler 1934-8-2 3015 Siskiyou Siskiyou Mtns, Alex hole, Alex Canyon 1890 Comment
  POM141796  Saxifraga howellii H. P. Chandler 1901-06 1613 Siskiyou Near Marble Mountain 2134 Comment
  CAS-BOT-BC482444  Saxifraga mertensiana Dana York 2011-8-13 3052 Siskiyou Marble Mountain Wilderness, Klamath National Forest, E-slope of Black Marble Mountain 1950 Comment
  RSA120760  Saxifraga nidifica var. nidifica S. S. Tillett 1956-7-9 646 Siskiyou Scott Mtn, Siskiyou-Trinity County line, 8 miles SE of Callahan. 1921 Comment
  RSA211111  Saxifraga odontoloma William J. Ferlatte 1967-8-23 1105 Siskiyou Kidd Creek Trail. Trinity Alps. 1951 Comment
  JEPS47635  Saxifraga oregana Milo S. Baker 1899-8-4 Siskiyou Dead Horse Canyon Comment
  UC187668  Saxifraga oregana Mrs. R. M. Austin July 1884 122 Siskiyou Pot Hole Springs Comment
  POM298393  Saxifraga tolmiei Lester Rowntree 1939-7-31 s.n. Siskiyou Caribou Lake. Comment
  UC618602  Saxifraga tolmiei W. Bridge Cooke 1938-8-22 11556 Siskiyou w slope of Shastina (Mount Shasta); , Shastina 2895 Comment
  CAS-BOT-BC445871  Saxifragopsis fragarioides John Thomas Howell 1939-8-3 14990 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC55711  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-26 10113 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  JEPS124491  Schoenoplectus acutus var. occidentalis Daniel Slakey 2015-7-14 164 Siskiyou Along Ager-Beswick Road, approximately 5 miles from Copco Lake. Comment
  UCSB23748  Schoenoplectus acutus var. occidentalis Breedlove, Dennis 1962-6-10 Siskiyou On the north bank of Klamth River; at its junction with Goff Creek; 4.5 miles west of Seiad 411 Comment
  UCSC005437  Scirpus Janell M. Hillman 1997-5-26 19 Siskiyou Californiaand Oregon Power Company Land Comment
  RSA167320  Scirpus congdonii Joseph P. Tracy 1950-7-19 19203 Siskiyou Flint Valley, about 5 miles southeast of Elk Valley 1433 Comment
  UC185014  Scirpus lineatus Geo. D. Butler 1909-5-23 857 Siskiyou near Yreka (dry hill); near Yreka Comment
  CAS-BOT-BC111095  Scirpus microcarpus C. F. Baker 1903-8-14 3722 Siskiyou Sisson Comment
  HSC27105  Scutellaria antirrhinoides Carl W. Mize 1972-6-21 57 Siskiyou 0.25 mi. above rd. on WSW slope 274 Comment
  UC1713587  Scutellaria antirrhinoides Dr. E. B. Copeland 1903-7-2 3530 Siskiyou Klamathon; Pacific Coast, Klamathon Comment
  JEPS81648  Scutellaria antirrhinoides L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2314 Siskiyou between the Sacramento and McCloud arms of Shasta Lake (near Fall Creek Inn along Gilman Road) 396 Comment
  UC618653  Scutellaria nana W. Bridge Cooke 1938-8-23 11569 Siskiyou n slope of Shastina; Mount Shasta, Shastina 2438 Comment
  RSA120941  Scutellaria nana Milo S. Baker 1957-6-15 13105 Siskiyou Just south of Weed. Comment
  HSC59373  Sedum lanceolatum Thomas W. Nelson, J. P. Smith 1979-6-15 4808 Siskiyou Above road to Carmen Lake, 0.6 mi. from junction with State Rte. 3 1738 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
  UC630383  Sedum obtusatum subsp. boreale Annetta Carter 1939-8-21 1467 Siskiyou 12 mi sw Etna (steep slope above se end Taylor Lake, Salmon Mountains); Salmon Mountains, Taylor Lake, sw of Etna 2164 Comment
  HSC19526  Sedum obtusatum subsp. retusum J. O. Sawyer 1968-7-10 480 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  HSC69553  Sedum obtusatum subsp. retusum Maralyn A. Renner 1980-6-26 1293 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  CAS-BOT-BC94958  Sedum oregonense R. C. Wenk 2005-7-15 214 Siskiyou Trinity Alps, above South Fork of Salmon River, along Yellow Rose Mine Trail, N along ridge toward Preacher's Peak 2133 Comment
  JEPS82493  Sedum spathulifolium Gilbert Muth 1965-8-3 158 Siskiyou Marble Valley , Marble Valley (Marble Mt. Wilderness area) 1792 Comment
  CAS-BOT-BC341179  Senecio hydrophiloides Geo. D. Butler 1910-6-19 1581 Siskiyou Goosenest foothills 1524 Comment
  CHSC71286  Senecio integerrimus var. exaltatus Vernon H. Oswald; Lowell Ahart 1998-6-11 9216 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  RSA0124976  Senecio integerrimus var. exaltatus M. B. Dunkle 1944-6-26 9050 Siskiyou Deer Creek Slope. 1828 Comment
  HSC22202  Senecio integerrimus var. major J. O. Sawyer 1968-7-9 417 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  JEPS101631  Senecio streptanthifolius var. laetiflorus Dean W. Taylor 1998-6-17 16559 Siskiyou base of hillslopes ca. 4 miles S of Gazelle, bordering Shasta Valley (ca. 15 air mi S Yreka) Comment
  CAS-BOT-BC364424  Senecio triangularis John Thomas Howell 1937-7-22 13306 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC364439  Senecio triangularis Geo. D. Butler 1910-6-5 1486 Siskiyou Shackleford Creek Comment
  UC129421  Senecio triangularis Harley P. Chandler June 1901 1717 Siskiyou ridges and meadows near Marble Mountain (Shackleford Canyon); North Coast Ranges, Shackleford Canyon 1524 Comment
  UC1483533  Senecio triangularis John Palmer 1980-8-12 689 Siskiyou se Wards Gap; Condry Mtn. Quad., Klamath National Forest 1188 Comment
  CAS-BOT-BC364447  Senecio triangularis Wm. Bridge Cooke 1938-9-8 11678 Siskiyou Mount Shasta. Panther Creek Meadow Comment
  UC722747  Senecio triangularis C. L. Hitchcock and J. S. Martin 1939-7-6 5204 Siskiyou 2 mi within California boundary on Takilma- Happy Camp road; Siskiyou Mts. 1554 Comment
  CAS-BOT-BC243645  Setaria pumila Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Roger's Creek, Somes Bar Comment
  UC108920  Sidalcea malviflora subsp. asprella Mrs. K. Brandegee Jul 1889 Siskiyou Sisson's Comment
  CAS-BOT-BC205788  Sidalcea oregana Wm. Bridge Cooke 1939-7-7 13589 Siskiyou Mount Shasta. At Bear Springs Comment
  UC2042826  Sidalcea oregana subsp. oregana Barbara Ertter with Julie Kierstead and Jim Nelson 1990-7-15 9368 Siskiyou Ca. 1 mi E of Toad Lake at head of Middle Fork Sacramento River, ca. 8 air miles W of Mt Shasta City. Comment
  HSC76675  Sidalcea oregana subsp. spicata K. T. Stillman 1976-7-21 280 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  UC170181  Sidalcea oregana subsp. spicata Harley P. Chandler June, 1901 1707 Siskiyou near Marble Mountain (Shackleford Canyon); North Coast Ranges, near Marble Mountain 1828 Comment
  LA205947  Sidalcea oregana subsp. spicata Wm. Bridge Cooke; 1940-7-5 15229 Siskiyou Mount Shasta, Bear Springs meadow 1523 Comment
  CAS-BOT-BC181191  Silene campanulata subsp. glandulosa Marion Ownbey; Fred G. Meyer 1940-7-6 2199 Siskiyou Summit of Cayenne Ridge, Marble Mountain 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
  RSA237846  Silene campanulata subsp. glandulosa Frederick W. Oettinger, R. F. Thorne 1969-8-9 1315 Siskiyou Below first river crossing, region of Abbott s Upper Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1524 Comment
  HSC268  Silene douglasii William J. Ferlatte 1967-8-21 1069 Siskiyou Sawtooth Ridge between Caribou Basin and Little S Fork Lake 2287 Comment
  CHSC69076  Silene douglasii var. douglasii Vernon Oswald; Lowell Ahart 1997-7-28 8779 Siskiyou Forest Route 56 (42N56) 3.7 mi east of Forest Route 49, edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave. 1755 Comment
  CAS-BOT-BC388957  Silene grayi John Thomas Howell 1939-8-8 15168 A Siskiyou Black Mt., Marble Mts. Comment
  CAS-BOT-BC388962  Silene grayi C. L. Hitchcock; J. S. Martin 1939-7-9 5320 Siskiyou Between King's Castle and Black Mt., west side of ridge 1828 Comment
  CHSC98892  Silene grayi L. P. Janeway; B. Castro 2007-7-29 9142 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2054 Comment
  HSC642  Silene grayi William J. Ferlatte 1967-7-6 607 Siskiyou Dorleska summit. 2134 Comment
  HSC76646  Silene grayi K. T. Stillman 1976-8-7 173 Siskiyou Marble Mtn. Wilderness Area. 2073 Comment
  HSC92350  Silene grayi Jennifer Whipple 1976-7-14 1480 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  RSA166259  Silene grayi H. Dearing, M. Dearing 1939-7-1 3787 Siskiyou Salmon Mts. 1829 Comment
  UC1299624  Silene grayi Freed W. Hoffman 1950-7-14 3636 Siskiyou Clear Creek trail , Clear Creek trail (western Baldy Mountain) Comment
  HSC39834  Silene lemmonii J. O. Sawyer 1969-7-23 1162 Siskiyou Near Horse Range Creek 1341 Comment
  JEPS69769  Silene lemmonii W. B. and V. G. Cooke 1972-7-6 45462 Siskiyou Mud Creek Dam Road , Mud Creek Dam Road (Mt. Shasta) 1066 Comment
  UC1212577  Silene lemmonii Francia Chisaki, Helen K. Sharsmith 1959-8-20 4735 Siskiyou Canyon of Scott River before reaching Carrigher's Summit and divide between Scott River and East Fork Salmon River; Inner North Coast Ranges, Canyon of Scott River 1828 Comment
  CAS-BOT-BC389527  Silene menziesii Geo. D. Butler 1909-6-10 967 Siskiyou Near Yreka Comment
  JEPS51011  Silene menziesii Milo S. Baker 1893-6 Siskiyou 6 mi below Bartles; McCloud River, below Bartles Comment
  UC375339  Silene menziesii Geo. D. Butler 1908-6-25 103 Siskiyou along creek near Yreka; near Yreka Comment
  RSA715632  Sisymbrium altissimum L. Ahart, John Dittes 2005-6-9 12020 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
  CAS-BOT-BC75155  Sisymbrium altissimum Doris K. Kildale 1928-7-25 5864 Siskiyou Klamath River. Clyborne's Ranch - between Gottville and Brown's Resort. Comment
  UC618732  Sisyrinchium bellum W. Bridge Cooke 1938-7-15 11230 Siskiyou above Bear Spring (Also at Wagon Camp); Mount Shasta 1584 Comment
  HSC40276  Sisyrinchium bellum J. D. Ackerman, A. Montalvo 1975-7-18 581 Siskiyou Gumboat Lake Comment
  SEINET3920543  Sisyrinchium bellum Douglass Henderson 1985-6-8 6974 Siskiyou Shasta-Trinity NF along Hwy 89 between McLeod and Susanville, ca 1 mile SE of Bartle. Along north side of Hwy.; 0 1207 Comment
  NY319455  Sisyrinchium greenei H. E. Brown 1897-6-11 351 Siskiyou North side of Mt. Shasta. 1524.0 Comment
  SEINET3154290  Smilacina sessilifolia G. D. Butler 1910-5-15 1343 Siskiyou McAdams Creek Comment
  JEPS62160  Smilax californica W. L. Jepson July 1894 Siskiyou Sisson Comment
  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
  JEPS93958  Solanum dulcamara Vernon H. Oswald and Lowell Ahart 1998-9-16 9637 Siskiyou 5.3 mi e of Highway 97 (Highway 161 adjacent to marsh at the Lower Klamath National Wildlife Refuge); Lower Klamath National Wildlife Refuge 1243 Comment
  SBBG125916  Solanum dulcamara L. Ahart, J. Dittes 2010-7-30 16939 Siskiyou S edge of Shasta River, ca 100 yards E of E Louie Rd Bridge, Shasta Big Springs Ranch, 1.6 mi (air) SW of Big Springs Lake, 4.6 mi (air) NW of Dwinnel Dam, 5.7 mi (air) SE of Grenada 716 Comment
  CHSC1941  Solanum parishii M. Yoder 1941-7-21 Siskiyou Castle Lake. 1981 Comment
  NY821079  Solanum parishii E. Joyal 1988-6-25 1272 Siskiyou Happy Camp-Takilma road at turn-off to Bolan Lake 1524 Comment
  RSA428812  Solanum villosum Louis C. Wheeler 1934-9-17 3275 Siskiyou Siskiyou Mts: Dutch Creek off Klamath River. 701 Comment
  RSA237487  Solidago canadensis subsp. elongata Frederick W. Oettinger 1968-8-12 494 Siskiyou Tobacco Lake Meadow, The Salmon Mountains; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1890 Comment
  UC726607  Solidago elongata A. A. Heller 1916-8-24 12562 Siskiyou near Sisson 1074 Comment
  CAS-BOT-BC365556  Solidago elongata L. E. Smith 1915-7-11 s.n. Siskiyou Sisson Comment
  HSC62028  Solidago multiradiata Al Hobart 5 Aug [year missing] Siskiyou Preston Peak Comment
  UCD133894  Solidago multiradiata Robert E. Preston 2001-8-26 1765 a Siskiyou Klamath National Forest, north slope of Rainbow Mountain, Hemlock Lake. 1889 Comment
  UC88188  Solidago spectabilis K. Curran Jul 1887 Siskiyou Sisson's Comment
  JEPS44984  Sorbus californica W. L. Jepson 1902-7-17 2075 a Siskiyou Salmon Summit 2286 Comment
  JEPS95134  Sorbus californica Vernon Oswald and Lowell Ahart 1997-7-28 8794 Siskiyou s.e. Medicine Lake (at Paynes Springs, on walls of Paynes Creek Canyon n. of the campground); Paynes Springs 1981 Comment
  HSC19254  Sorbus scopulina J. O. Sawyer 1969-6-12 898 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  CHSC106101  Sparganium emersum subsp. emersum Lowell Ahart; John Dittes 2010-7-30 1936 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CAS-BOT-BC390715  Spergularia rubra Louis C. Wheeler 1934-9-2 3239 Siskiyou Klamath National Forest. Miller Glade 1828 Comment
  CAS-BOT-BC149689  Spiraea douglasii Carl B. Wolf 1930-10-22 1754 Siskiyou 1 mile west of Mt. Shasta City 1066 Comment
  SBBG25910  Spiraea douglasii D. Myrick 1966-8-8 1485 Siskiyou Big Flat Cmpgrd, Mtn Meadow Ranch, Big Flat 1828 Comment
  RSA0056277  Spiraea douglasii Geo. E. Julian 1962-7-20 s.n. Siskiyou Near trailer park in town of Mt. Shasta. Comment
  CAS-BOT-BC149697  Spiraea splendens A. M. Vollmer; L. Beane 1951-6-1 158 Siskiyou Road to Elk Valley Comment
  HSC100319  Spiraea splendens J. P. Smith, J. O. Sawyer 2011-7-21 13033 Siskiyou Flint Valley, at the end of the G-O Road. 1313 Comment
  HSC18956  Spiranthes romanzoffiana J. O. Sawyer 1969-8-4 1866 Siskiyou Slope SW of South Sugar Lake 2195 Comment
  RSA237645  Spiranthes romanzoffiana Frederick W. Oettinger 1968-8-12 497 Siskiyou Tobacco Lake trail. The Salmon Mountains; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1890 Comment
  UC456146  Stachys ajugoides var. rigida I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  UCLA39900  Stachys ajugoides var. rigida Robert T. Clausen and Harold Trapido 1940-7-26 4958 Siskiyou near Wagon Camp; So. Cascade Mts., Sacramento River Basin, Mt. Shasta 1734 Comment
  RSA298323  Stachys rigida subsp. rigida J. P. Smith, Steve Selva 1970-7-16 4405 Siskiyou Beaver Creek Campground 823 Comment
  UCD77226  Stachys rigida subsp. rivularis Robert E. Preston 2002-7-12 1902 Siskiyou Klamath National Forest, S slope of Rainbow Mountain, N of Trout Creek 1652 Comment
  SEINET187664  Stellaria borealis subsp. sitchana W. Bridge Cooke 1940-7-5 15276 Siskiyou Wagon Camp. 1737 Comment
  HSC29619  Stellaria crispa Frederick W. Oettinger 1969-8-4 1166 Siskiyou Marble Mtn. Wilderness Area, above inlet to Hancock Lake 1951 Comment
  UC1191452  Stellaria longipes var. longipes Herbert L. Mason 1948-7-18 13611 Siskiyou Grass Lake Comment
  JEPS20033  Stellaria media George D. Butler 1909-3-19 559 Siskiyou near Yreka (on Butler's Ranch) Comment
  UC1360488  Stenanthium occidentale J. M. Tucker and L. K. Mann and S. L. Holloway 1963-8-18 3747 Siskiyou ca 0.5 mi ne Marble Valley Guard Station (Upper Canyon Creek); Marble Mountain Wilderness Area 1920 Comment
  JEPS24635  Stephanomeria lactucina Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6790 Siskiyou A little above and east of McBride Springs south slopes of Mt. Shasta. 1432 Comment
  POM56351  Stephanomeria lactucina Copeland 1903-8-15 3838 Siskiyou Sisson. Comment
  RSA237476  Stephanomeria lactucina Frederick W. Oettinger, R. F. Thorne 1969-8-5 1195 Siskiyou Dry trail on way to Abbotts. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1677 Comment
  CAS-BOT-BC375943  Stephanomeria virgata Louis C. Wheeler 1934-7-17 2912 Siskiyou Klamath National Forest. Cottonwood Cr. 1036 Comment
  CAS-BOT-BC87870  Streptanthus tortuosus Robert F. Thorne; Fred Oettinger 1969-8-10 39004 Siskiyou Mount Shasta National Forest. South slope of Mount Shasta. Above ski lodge. 2438 Comment
  HSC65575  Streptanthus tortuosus R. White 1977-7-7 108 Siskiyou Devil's Punchbowl, NE shore 1433 Comment
  RSA237371  Streptanthus tortuosus Frederick W. Oettinger 1967-8-26 333 Siskiyou 1/8 mile from Diamond Lake on trail to English Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. Comment
  RSA233655  Streptanthus tortuosus R. F. Thorne, Frederick W. Oettinger 1969-8-10 39004 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  JEPS25565  Streptanthus tortuosus var. orbiculatus Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7190 Siskiyou pumice fields just e Mt. Shasta Ski Bowl Lodge (upper end of Everitt Hwy, sw slopes of mt); Mt. Shasta 2346 Comment
  HSC43270  Streptanthus tortuosus var. tortuosus K. Irwin 1977-5-22 392 Siskiyou On S Fork Salmon River Rd., 4.5 mi. W of Cecilville Comment
  JEPS62165  Streptopus amplexifolius var. americanus Willis L. Jepson Jul 1894 Siskiyou Sisson Comment
  SD61056  Suaeda calceoliformis Darley F. Howe 1964-8-5 3939 Siskiyou 13.4 miles east of junction with Highway 97 on state line road. 1220 Comment
  CAS-BOT-BC48105  Suksdorfia ranunculifolia Ira L. Wiggins 1955-7-27 13546 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC59010  Swertia albicaulis var. nitida Marvin Butler 1971-8-11 301 Siskiyou Near Copper Camp close to the town of Cave Junction 1372 Comment
  CAS-BOT-BC245849  Symphoricarpos Doris K. Kildale 1928-7-4 5523 Siskiyou Summit of divide between Salmon River and Scott Valley in Sawyers Bar-Etna Road Comment
  CAS-BOT-BC269611  Symphoricarpos albus var. laevigatus William A. Dayton 1913-9-14 586 Siskiyou Shasta National Forest. E. Fk of Scott River Range along Rail Creek 1341 Comment
  CAS-BOT-BC234778  Symphoricarpos mollis Carl B. Wolf 1927-8-27 1113 Siskiyou On the Klamath River, Happy Camp Comment
  CAS-BOT-BC234781  Symphoricarpos mollis H. A. Thomas; J. H. Thomas 1954-7-22 4444 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Rush and Big Bend Creeks, 0.25 - 0.5 miles N of S Fork of Salmon River 975 Comment
  HSC27962  Symphoricarpos mollis Carl W. Mize 1972-9-23 122 Siskiyou 610 Comment
  HSC42903  Symphoricarpos mollis J. O. Sawyer, Ken Stillman 1976-5-28 2729 Siskiyou Along Rd. W of Sawyers Bar. 610 Comment
  UCD78034  Symphoricarpos mollis Robert E. Preston 2001-6-23 1573 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, at Hemlock Lake. 1889 Comment
  CAS-BOT-BC245768  Symphoricarpos rotundifolius Gilbert J. Muth 1969-8-7 1259 Siskiyou Boulder Peak Ridge 2468 Comment
  CAS-BOT-BC245774  Symphoricarpos rotundifolius Wm. Bridge Cooke 1938-8-23 11578 Siskiyou Above Bolam Creek, Mount Shasta 2590 Comment
  HSC76895  Symphyotrichum foliaceum K. T. Stillman 1976-9-9 485 Siskiyou Marble Mountain Wilderness Area; jump off point, trail to Box Camp 1951 Comment
  HSC68185  Symphyotrichum foliaceum var. parryi J. P. Smith, J. O. Sawyer 1973-8-14 7296 Siskiyou W shore of Campbell Lake 1768 Comment
  CAS-BOT-BC97946  Symphyotrichum frondosum Louis C. Wheeler 1934-8-20 3194 Siskiyou West Fork Beaver Creek, Siskiyou Mts. 1219 Comment
  UC933469  Symphyotrichum hendersonii Annie M. Alexander 1948-9-9 5617 Siskiyou meadow at start of 2 mile trail to Taylor Lake from Cook & White Mine Taylor Lake; Siskyou Mountains 1584 Comment
  JEPS16961  Symphyotrichum spathulatum Peter H. Raven 1956-9-5 10449 Siskiyou along a stream near the North Fork of the Sacramento River North Fork of the Sacramento River 2194 Comment
  CAS-BOT-BC98440  Symphyotrichum spathulatum Wm. Bridge Cooke 1940-7-5 15259 Siskiyou Mount Shasta, in wet places throughout lower Wagon Camp 1737 Comment
  UC711845  Taraxia tanacetifolia Roxana S. Ferris and Laura Lorraine 1941-8-11 10495 Siskiyou on US Hwy 97 Grass Lake Station 1554 Comment
  HSC29493  Taxus brevifolia Frederick W. Oettinger 1968-8-13 504 Siskiyou Marble Mtn. Wilderness Area, NE side of Hancock Lake 1936 Comment
  POM210933  Taxus brevifolia L. C. Wheeler 1934-8-14 3138 Siskiyou Siskiyou Mountains, west end of White Mountain 1768 Comment
  RSA183475  Taxus brevifolia J. M. Tucker 1963-7-5 3706 Siskiyou Lower Blake s Fork of South Russian Creek (a tributary of Salmon River), about 7 miles (airline) east of Sawyer s Bar, Salmon Mountains 1524 Comment
  UC224017  Taxus brevifolia H. E. Brown Jun 1 1897-Jun 10 1897 323 Siskiyou near Sisson 1083 Comment
  CAS-BOT-BC81340  Taxus brevifolia W. R. Dudley 1899-8-1 s.n. Siskiyou From Upper Sacramento River below Rainbow and S.W. of Sisson's Comment
  SBBG33706  Taxus brevifolia W. M. Plum 1969-9-23 Siskiyou Parks Crk below China Mtn Comment
  HSC18992  Tellima grandiflora J. O. Sawyer 1969-7-18 1362 Siskiyou E of Waterdog Lake 2012 Comment
  CAS-BOT-BC88061  Thelypodium brachycarpum A. A. Heller 1905-6-9 8011 Siskiyou Montague. Comment
  UC221543  Thelypodium brachycarpum H. E. Brown Jun 15 1897-Jun 30 1897 469 Siskiyou n side Mt. Shasta 1524 Comment
  UC903489  Thelypodium brachycarpum Dorothy Parker 1948-6-11 Siskiyou Yreka Comment
  JEPS82688  Thlaspi montanum var. montanum Wayne Roderick 1984-6-5 Siskiyou above Castle Lake (ca 12 air km sw of Mt. Shasta city); above Castle Lake 1981 Comment
  UC165975  Thysanocarpus curvipes Geo. D. Butler 1910-3-27 1147 Siskiyou dry hill near Yreka; near Yreka Comment
  CAS-BOT-BC447627  Tolmiea menziesii Dorothy Parker 1960-7-4 118 Siskiyou Moist granitic sand along stream. Salmon Mts. 1767 Comment
  UC164324  Tonella tenella Geo. D. Butler 1909-4-18 626 Siskiyou near Yreka Comment
  POM56352  Tragopogon porrifolius Copeland 1903-8-4 3886 Siskiyou Sisson. Comment
  CAS-BOT-BC519567  Triantha occidentalis subsp. occidentalis Annetta Carter 1939-8-21 1481 Siskiyou Salmon Mt.: SE of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2026 Comment
  NY444545  Trichostema lanatum E. B. Copeland 1903-7-2 3534 Siskiyou Comment
  POM27526  Trifolium eriocephalum subsp. eriocephalum Geo. D. Butler 1910-6-6 1457 Siskiyou Quartz Valley 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
  UCR256430  Trifolium hirtum Barbara L. Wilson, Caitlin Coberley 2011-6-16 16251 Siskiyou north edge of rest area on Hwy I-5 southbound, north of the town of Weed 888 Comment
  CAS-BOT-BC219034  Trifolium howellii Doris K. Kildale 1928-8-18 6426 Siskiyou North Fork on Salmon River at Finley Camp Comment
  HSC19002  Trifolium longipes J. O. Sawyer 1969-8-5 1936 Siskiyou N of S Sugar Lake 1890 Comment
  UCD78050  Trifolium longipes subsp. hansenii Robert E. Preston 2001-6-23 1604 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 2011 Comment
  UC52259  Trifolium macrocephalum W. T. Mooney May 1903 Siskiyou Yreka Comment
  UC338051  Trifolium obtusiflorum Lemmon 1889-6-26 Siskiyou Edgewood Comment
  HSC19001  Trifolium productum J. O. Sawyer 1969-7-24 1193 Siskiyou NE facing slope above Sugar Lake 1784 Comment
  UCD78178  Trifolium retusum Robert E. Preston 2008-5-13 2630 Siskiyou Along Hwy 96, ca. 11.6 miles N of the confl of the Klamath River and Salmon River 229 Comment
  HSC2320  Trifolium willdenovii Geo. D. Butler 1910-5-8 1313 Siskiyou Near Yreka Comment
  SBBG1079  Trillium ovatum D. Myrick 1961-6-21 304 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  CHSC187  Triodanis biflora 1943-8-5 Siskiyou Scott Valley. Comment
  RSA184784  Trisetum canescens Gilbert Muth 1966-7-22 433 Siskiyou Meadow below Marble Rim, Marble Mountains. 2012 Comment
  HSC76726  Trisetum spicatum K. T. Stillman 1976-8-8 398 Siskiyou Marble Mountain Wilderness Area, trail from jump off to Paradise Lake Comment
  CAS-BOT-BC133495  Triteleia crocea Clarence R. Quick 1959-6-19 59 -02 Siskiyou 3 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  POM109795  Triteleia crocea Geo D. Butler 1910-5-5 1287 Siskiyou [Huckleberry] Mountain. 1220 Comment
  RSA378083  Triteleia crocea M. B. Dunkle 1944-6-25 9020 Siskiyou Siskiyou National Forest. 1677 Comment
  HSC58903  Triteleia hyacinthina Marvin Butler 1971-7-21 188 Siskiyou Near Bell Echo Camp, close to town of Cave Junction. 1433 Comment
  HSC30441  Triteleia hyacinthina Frederick W. Oettinger 1969-8-18 1415 Siskiyou Marble Mtn. Wilderness Area, trail to Horse Range Lake 1768 Comment
  CHSC2087  Triteleia ixioides subsp. anilina M. Yoder 1941-6-28 Siskiyou Castle Lake. 1981 Comment
  UC618714  Triteleia ixioides subsp. anilina W. Bridge Cooke 1938-7-15 11238 Siskiyou vicinity lower Wagon Camp; Mount Shasta Comment
  UC1037432  Tsuga mertensiana Douglas Barbe 1955-8-1 322 Siskiyou on Mt. Bolivar se of Craggy Lookout (n slope only); Klamath Mountains, Scott Mountains, Mt. Bolivar 2255 Comment
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Mar 6 2013
  CAS-BOT-BC80256  Tsuga mertensiana subsp. grandicona L. E. Smith 1913-8-1 545 Siskiyou Mt. Eddy Comment
  SEINET8360227  Utricularia minor Barbara L. Wilson 2011-8-23 16864 Siskiyou Fawn Creek meadows; a couple hundred yards downstream. 1879 Comment
  POM283898  Utricularia vulgaris subsp. macrorhiza H. E. Brown 1897-6-11 s.n. Siskiyou North side of Mt. Shasta. 1524 Comment
  CHSC69748  Vaccinium cespitosum Loren Gehrung 1996-9-19 108 Siskiyou The Eddys. Jcn of County Rd 26 and Gumboot Creek, at Gumboot Crossing. 1511 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
  HSC18970  Vaccinium cespitosum J. O. Sawyer 1969-7-8 1098 Siskiyou SE facing slope W of Little Duck Lake 2268 Comment
  HSC19515  Vaccinium cespitosum J. O. Sawyer 1969-8-1 1679 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  HSC31964  Vaccinium cespitosum Steve Selva, Roger Jensen 1974-8-16 14 Siskiyou N shore of Sugar Lake. Comment
  HSC91292  Vaccinium cespitosum Jennifer Whipple 1976-6-30 1213 Siskiyou Wagon Creek drainage near Wagon Creek 370 Comment
  HSC91310  Vaccinium cespitosum Jennifer Whipple 1976-6-17 1023 Siskiyou Near Durney Lake 2073 Comment
  LA44628  Vaccinium cespitosum Wm. Bridge Cooke; 1939-8-24 13896 Siskiyou Mt. Shasta, Panther Meadow, Heather meadows, lower portions Comment
  SEINET3107072  Vaccinium cespitosum Steve Selva, Roger Jensen 1974-8-16 14 Siskiyou North shore of Sugar Lake. Comment
  UC917231  Vaccinium cespitosum R. Tofsrud and J. M. Tucker 1948-8-2 1766 Siskiyou s slope Mt. Shasta; , Panther Meadows 2407 Comment
  RSA238859  Vaccinium membranaceum Frederick W. Oettinger 1969-7-14 1013 a Siskiyou Common around Charmaine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC199252  Vaccinium ovatum F. W. Harley 1916-11-1 s.n. Siskiyou Klamath National Forest. Camp Creek watershed 121 Comment
  CAS-BOT-BC199798  Vahlodea atropurpurea John Thomas Howell 1939-8-3 15003 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC267276  Valeriana Carl B. Wolf 1934-7-4 5957 Siskiyou Siskiyou Mountains, 6.8 miles from Dry Lake Lookout on road to Horse Creek 1828 Comment
  UCD137622  Valeriana sitchensis Alfred H. Murphy 1961-7-19 61 E Siskiyou Marble Mtns., Klamath National Forest, Sky High Valley, north end. 1584 Comment
  RSA238823  Valeriana sitchensis subsp. scouleri Frederick W. Oettinger 1968-8-6 425 Siskiyou At the SE corner of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UCD95093  Vancouveria hexandra AHM 1955-7-29 55 J Siskiyou Klamath National Forest. Clear Lake. 1798 Comment
  UCSB24413  Vancouveria hexandra Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  HSC29265  Vancouveria hexandra Frederick W. Oettinger, R. F. Thorne 1969-8-6 1232 Siskiyou Marble Mtn. Wilderness Area, NW of Pine Lake 1860 Comment
  HSC73295  Vancouveria planipetala M. A. Baker 1980-6-20 2188 Siskiyou Near Bald Mtn. 1036 Comment
  HSC100307  Ventenata dubia J. P. Smith, & J. O. Sawyer 2011-6-25 13281 Siskiyou At the junction of Hwy. 3 and Forest Service Rd. 17. 1001 Comment
  CAS-BOT-BC529106  Veratrum californicum Doris K. Kildale 1928-8-19 6501 Siskiyou English Lake, head of north Fork of Salmon River 1828 Comment
  CHSC2323  Veratrum californicum var. californicum V. Holt 1932-7-10 Siskiyou Mt. Shasta City. 1097 Comment
  HSC36208  Veratrum californicum var. californicum John Rehling 1975-8-11 104 Siskiyou S end of Little Duck Lake Comment
  UCD13223  Veratrum californicum var. californicum Clyde Byfield 1973-7-3 S 364 Siskiyou Klamath National Forest, beside Kidder Creek, 0.5 mile west of Hayes Cabin on U.S.F.S. trail 11W23. 41 deg 30', 123 deg 07 1554 Comment
  HSC30442  Veratrum viride Frederick W. Oettinger 1969-9-2 1592 Siskiyou Marble Mtn. Wilderness Area, Bear Meadow near Tom Tyler Cabin 1997 Comment
  SBBG27149  Verbascum blattaria L. C. Wheeler 1934-10-24 3347 Siskiyou Oak Knoll Ranger Station, Klamath River Comment
  RSA0084072  Veronica alpina var. alterniflora William J. Ferlatte 1966-6-23 133 Siskiyou Trinity Alps: Yellow Rose Mine. 1982 Comment
  JEPS16834  Veronica americana Geo. D. Butler 1908-7-22 451 Siskiyou near Yreka (Butler's Ranch); Butler's Ranch Comment
  JEPS74569  Veronica americana W. J. Ferlatte 1966-6-23 132 Siskiyou Trinity Alps, Yellow Rose Mine Yellow Rose Mine; Trinity Alps, Yellow Rose Mine 1981 Comment
  HSC72504  Veronica americana J. P. Smith, Steve Selva 1970-6-16 4024 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1159 Comment
  CAS-BOT-BC5123  Veronica copelandii Edwin Bingham Copeland 1903-8-18 3931 Siskiyou Mt. Eddy Comment
  HSC97143  Veronica peregrina subsp. xalapensis L. Ahart, John Dittes 2005-6-10 12059 Siskiyou Depression near dirt road, 80 yds. N of pump house along the Shasta River, 1.9 mi. S of Hwy. 99/97 Cutoff, 6 mi. ESE of Grenada 777 Comment