Search Results — 2000 specimen records retrieved (1348 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78126  Abies X shastensis Gilbert Muth 1966-7-29 132 Siskiyou Forest at Marble Valley, Marble Mt. 1792 Comment
  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
  CAS-BOT-BC78128  Abies X shastensis W. R. Dudley 1899-8-24 s.n. Siskiyou Craggy Peak Comment
  CAS-BOT-BC77936  Abies amabilis Eugene L. Parker 1961-10-3 s.n. Siskiyou Below summit of Copper Butte on northern edge of Colony, Klamath National Forest 1920 Comment
  CAS-BOT-BC77937  Abies amabilis Eugene L. Parker 1961-10-3 s.n. Siskiyou Below [summitof] summit of Copper Butte on northern edge of Colony, Klamath National Forest 1920 Comment
  CAS-BOT-BC419723  Abies concolor Julie Kierstead Nelson; Keli McElroy 2012-8-10 2012 -073 Siskiyou NW side of Gumboot Lake. 1853 Comment
  HSC69329  Abies concolor John Palmer 1980-8-12 749 Siskiyou Road to Bearground Spring from Beaver Creek Rd. 1341 Comment
  HSC69559  Abies concolor Maralyn A. Renner 1980-8-6 2290 Siskiyou Along trail, 0.5 mi. SE of Cyclone Gap. 1585 Comment
  UCD134142  Abies concolor Robert E. Preston 2001-6-30 1649 c Siskiyou Klamath National Forest, Rainbow Mountain, north slope of east lobe. 1920 Comment
  CAS-BOT-BC78022  Abies grandis M. P. Anderson 1902-2-16 s.n. Siskiyou Ridge between Seiad and Hone Creek Comment
  RSA293135  Abies lasiocarpa J. O. Sawyer 1968-7-10 499 Siskiyou On trail to South Sugar Lake. 1981 Comment
  CAS-BOT-BC331047  Acer glabrum var. glabrum Wm. Bridge Cooke 1938-7-22 11342 Siskiyou Mount Shasta; Sisson Southern Trail. 1981 Comment
  UC618774  Acer glabrum var. glabrum W. Bridge Cooke 1938-7-22 11342 Siskiyou Sisson Southern Trail Mount Shasta, Sisson Southern Trail 1981 Comment
  HSC31803  Acer glabrum var. torreyi Steve Selva, Roger Jensen 1974-8-16 1 Siskiyou N facing slopes above Sugar Lake Comment
  JEPS42664  Acer macrophyllum Geo. D. Butler 1909-5-31 767 Siskiyou Humbug Comment
  CAS-BOT-BC30429  Achillea millefolium John Thomas Howell 1939-8-6 15093 Siskiyou Spirit Lake, Marble Mountains 1828 Comment
  CAS-BOT-BC30442  Achillea millefolium Doris K. Kildale 1929-8-24 9099 Siskiyou Rattlesnake Meadow, Preston Peak 1524 Comment
  HSC22300  Achillea millefolium J. O. Sawyer 1969-8-1 1641 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  UC134225  Achillea millefolium Dr. E. B. Copeland 1903-7-4 3546 Siskiyou Klamathon; Pacific Coast Comment
  UCD50899  Achnatherum occidentale R. Tofsrud 1948-8-1 s.n. Siskiyou Along road up to Panther Meadow, Mt. Shasta. 1828 Comment
  SEINET7593408 Image available Achnatherum occidentale Frederick W. Oettinger 1969-1 1352 Siskiyou Salmon Mountains, High Lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area - southeast ridge of English Peak 2134 Comment
  SEINET7593416 Image available Achnatherum occidentale Frederick W. Oettinger 1968-9-6 744 a Siskiyou Salmon Mountains, High Lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area - Bear Meadow above Tom's Lake 2187 Comment
  SEINET7593425 Image available Achnatherum occidentale A. S. Hitchcock 1934-1 12390 Siskiyou Se. corner of Siskiyou Co. Comment
  UCD51146  Achnatherum occidentale subsp. californicum Dean Wm. Taylor 1975-8-14 5364 Siskiyou Mt. Shasta, between Shasta Ski area and Green Butte. 2590 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
  UC618668  Achnatherum occidentale subsp. occidentale W. B. Cooke 1938-8-18 11471 Siskiyou Horse Camp Springs Mount Shasta Comment
  HSC46219  Acmispon nevadensis Jennifer Whipple 1978-6-5 2327 Siskiyou Weston Gulch in Scott Valley 854 Comment
  JEPS74533  Aconitum columbianum W. J. Ferlatte 1966-8-3 291 Siskiyou Trinity Alps, Josephine Lake basin 1676 Comment
  UCD77302  Aconitum columbianum Robert E. Preston 2001-7-20 1682 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W se 1/4 of ne 1/4 Section 14 1712 Comment
  UCD95300  Aconitum columbianum Beecher Crampton 1956-8-21 3801 Siskiyou slopes above Gumboot Lake, headwater of the south fork of the Sacramento River. Comment
  SD53342  Aconogonon davisiae Darley F. Howe 1962-8-6 3407 Siskiyou Mt. Shasta 2438 Comment
  SJSU2559  Aconogonon phytolaccifolium H. L. Buckalew 1962-7-7 Siskiyou Poker Flat c. 3 mi W of junction of Indian Cr with W Branch Indian Cr, Siskiyou Mts 1082 Comment
  CHSC1422  Actaea rubra V. Holt 1932-7-15 Siskiyou Castle Lake. 1981 Comment
  UC618887  Actaea rubra W. Bridge Cooke 1938-8-19 11530 Siskiyou Big Bear Springs meadow and Sisson Southern Trail Spring (6500 ft) Mt. Shasta Comment
  HSC77281  Adenocaulon bicolor L. P. Janeway 1983-6-29 352 Siskiyou Along road 19N07 approx. 2 miles N of the Indian Cr. Rd. 701 Comment
  UC1409501  Adenocaulon bicolor F. W. Oettinger 1969-8-9 1317 Siskiyou toward 5 mile Stock Gate along main North Fork trail Abbott's Upper Cabin; Salmon Mountains 1356 Comment
  RSA237840  Adiantum aleuticum Frederick W. Oettinger 1968-9-1 644 Siskiyou Southwest of Abbotts Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  SEINET10470216  Adiantum aleuticum G. B. Grant 1902-9-2 Grant UMO 32128 Siskiyou Collected at Shasta Springs northern keal. Comment
  UCD137174  Adiantum aleuticum H. P. Olmo 1931-6-1 s.n. Siskiyou Somesbar. Comment
  UCSB51234  Adiantum aleuticum Almanza, Ed 1976-7-15 Siskiyou O' Neill Creek (eastern tributary to Klamath River), State Hwy 96 238 Comment
  CAS-BOT-BC110722  Aegilops cylindrica T. C. Fuller 1962-6-12 8970 Siskiyou Little Shasta Road, 1 mile east of Montague. Comment
  SEINET515849  Agastache parvifolia Vernon Oswald 1997-7-28 8771 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi. S of Medicine Lake. 1366 Comment
  UC1408770  Agastache urticifolia Frederick W. Oettinger 1968-8-14 515 Siskiyou margins of Bear Meadow between English Peak and Tom Taylor Cabin (High Lake Basins in Vicinity of English Peak, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1996 Comment
  UC883212  Agastache urticifolia Milo S. Baker Siskiyou McCloud River s Mt. Shasta; McCloud River s of Mt. Shasta Comment
  RSA113736  Ageratina occidentalis Beecher Crampton 1956-8-21 3843 Siskiyou Above the Sacramento River, just below the junction of the middle with the south fork. Comment
  CAS-BOT-BC15482  Agoseris X dasycarpa Alice Eastwood 1921-7-29 10959 Siskiyou Medicine Lake Comment
  JEPS35716  Agoseris aurantiaca var. aurantiaca Geo. D. Butler 303 Siskiyou head of, near summit Wooly Creek 1767 Comment
  UC642578  Agoseris aurantiaca var. aurantiaca W. B. Cooke 1939-7-26 13638 Siskiyou lower portion of the meadow area Panther Creek; Mount Shasta Comment
  CAS-BOT-BC15378  Agoseris grandiflora var. grandiflora Louis C. Wheeler 1934-6-11 2683 Siskiyou North Hungry Creek, Siskiyou Mountains 1310 Comment
  OBI53728  Agoseris grandiflora var. leptophylla David J. Keil 1992-7-20 23469 Siskiyou W side of Scott Valley, 4.9 mi N of Etna along Calif Rte 3 875 Comment
  JEPS93824  Agoseris heterophylla Vernon H. Oswald and Lowell Ahart 1998-6-11 9196 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on the s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  UC618704  Agoseris monticola W. B. Cooke 1938-9-8 8200 Siskiyou near, in lava fields South Gare Springs; Mt. Shasta 2499 Comment
  UC163888  Agoseris retrorsa Geo. D. Butler 1910-5-15 1347 Siskiyou Greenhorn Mountains 1066 Comment
  UC61074  Agoseris retrorsa W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson; Mount Shasta Comment
  CAS-BOT-BC110737  Agropyron Melissa A. Berry 1957-7-2 s.n. Siskiyou Scott Valley. 822 Comment
  POM211400  Agrostis L. C. Wheeler 1934-6-26 2792 Siskiyou Border of sunny creek, Cottonwood creek 838 Comment
  UC618636  Agrostis alba W. B. Cooke 1938-9-17 11693 Siskiyou Mount Shasta , Horse Camp Comment
  CAS-BOT-BC126982  Agrostis exarata Louis C. Wheeler 1934-7-2 2843 Siskiyou Klamath Forest. Little Smoky Creek. 1280 Comment
  CAS-BOT-BC126984  Agrostis exarata J. M. Tucker 1963-8-19 3782 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area. 1950 Comment
  CHSC88410  Agrostis exarata Jenny Marr 1993-7-1 169 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC203952  Agrostis exarata Geo. D. Butler 1910-6-21 1595 Siskiyou Yreka Creek Comment
  UCD52352  Agrostis exarata A. H. Murphy 1956-8-15 56 I Siskiyou Klamath National Forest, Tangle Blue Creek. 1767 Comment
  CAS-BOT-BC139569  Agrostis gigantea Louis C. Wheeler 1934-8-14 3134 Siskiyou Klamath Forest. North side White Mountain. 1767 Comment
  JEPS84087  Agrostis idahoensis L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6340 Siskiyou ca 7 mi nne Seiad Valley (sw of Cook and Green Pass, ca 0.5 mi se of Red Butte) 1730 Comment
  SEINET7594039 Image available Agrostis idahoensis F. W. Oettinger 1968-9-7 765 Siskiyou W. Siskiyou County, Tobacco Lake, Salmon Mountains 1890 Comment
  HSC22462  Agrostis pallens J. O. Sawyer 1969-7-24 1471 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  HSC30521  Agrostis pallens Frederick W. Oettinger 1969-9-3 1612 Siskiyou Marble Mtn. Wilderness Area, Shasta Ridge 2073 Comment
  RSA237930  Agrostis pallens Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1161 Siskiyou Above Halfway Spring, on trail from English Lake to Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  UC814985  Agrostis pallens John Thomas Howell 1939-8-2 14943 Siskiyou Spirit Lake Marble Mts. 1828 Comment
  RSA211225  Agrostis stolonifera William J. Ferlatte 1967-8-17 952 Siskiyou Trinity Alps; Yellow Rose Mine. 1982 Comment
  CHSC61556  Agrostis thurberiana L. P. Janeway 1983-8-16 557 Siskiyou Siskiyou Mountains; at Poker Flat. 1524 Comment
  UCD53689  Agrostis variabilis Beecher Crampton 1956-8-22 3857 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  CAS-BOT-BC138355  Aira caryophyllea var. caryophyllea Dorothy Parker 1949-5-22 93 Siskiyou On the south side of School House Hill, East Fork of Scott River. 1066 Comment
  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
  HSC100993  Alisma triviale J. P. Smith 2009-8-22 12656 Siskiyou Along the road to Bray. 1422 Comment
  POM110209  Allium amplectens Geo D. Butler 1910-5-17 1358 Siskiyou Damp land near Yreka. Comment
  JEPS84243  Allium campanulatum L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6345 Siskiyou ca. 7 mi nne Seiad Valley (slope e of road, sw of Cook and Green Pass, ca. 1/2 mi se of Red Butte) 1730 Comment
  UC1090392  Allium falcifolium Milo S. Baker 1957-6-16 13123 Siskiyou Scott Mt. 1645 Comment
  CAS-BOT-BC474286  Allium obtusum var. obtusum W. B. C. 1938-7-1 11163 Siskiyou Panther Creek Sand Flats. Sand Flats in openings, on morainal deposits in the Shata Fir forest. 1981 Comment
  UC1299631  Allium siskiyouense Freed W. Hoffman 1951-7-12 3793 Siskiyou Packers Valley above Hammonds Camp; Marble Mountains, Packers Valley 2072 Comment
  UC803883  Allium validum G. L. Stebbins Jr. with P. Dansereau, C. McMillan, and K. Narayan 1949-8-9 4020 Siskiyou 10 mi w Weeds (along Park's Creek, above Stewart Springs); Park's Creek 1219 Comment
  CAS-BOT-BC478033  Allium validum A. A. Heller 1915-8-26 12233 Siskiyou Mt. Eddy in open swampy places in the forest 1828 Comment
  HSC45190  Allotropa virgata J. O. Sawyer, E. Cope 1977-6-18 2928 Siskiyou Along Clear Creek Trail between Ten Mile Creek and Bear Pen Creek 610 Comment
  CAS-BOT-BC171401  Alnus incana subsp. tenuifolia Doris K. Kildale 1928-7-4 5544 Siskiyou 1 1/2 miles below Summit of divide between N Fork of Salmon River and Scott Valley Comment
  UC1408783  Alnus incana subsp. tenuifolia Frederick W. Oettinger 1968-9-4 692 Siskiyou Abbots Lake outlet Salmon Mountains, Marble Mountain Wilderness Area (high lake basins in vicinity of English Peak, w Siskiyou Co.) 1722 Comment
  SACT002779  Alnus rubra Geo Dobbins 1961-6-19 Siskiyou 5 miles west of Oregon Cave National Monument Comment
  CAS-BOT-BC169379  Alnus viridis subsp. sinuata Wm. Bridge Cooke 1939-8-10 13862 Siskiyou around springs on the walls of the Mud Creek Canyon from the Hudsonian to the Transition Zones. Mount Shasta 2133 Comment
  HSC4967  Alnus viridis subsp. sinuata J. O. Sawyer 1968-7-10 489 Siskiyou Lower slopes grading to terrace of a temporary stream. 1768 Comment
  HSC68440  Alnus viridis subsp. sinuata Maralyn A. Renner 1980-7-4 1389 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  UC1408784  Alnus viridis subsp. sinuata Frederick W. Oettinger 1968-8-3 383 Siskiyou near Base Camp (along trail bet. Diamond and Hancock Lakes, high lake basins in vicinity of English Peak, w Siskiyou Co.); Marble Mountain Wilderness Area, Salmon Mountains 2011 Comment
  UCD14406  Alopecurus pratensis Sheryl Gill 1996-9-3 s.n. Siskiyou At the Tule Lake National Wildlife Refuge - 'Frey's Island' Sites D, E, and F; in the south-east part of the refuge in southern sump; 'Captain Jack's Stronghold' GS map quad. 1229 Comment
Read comments
Jun 24 2009
  UC165945  Alyssum alyssoides Geo. D. Butler 1909-5-13 722 Siskiyou Cottonwood Creek below Hornbrook; Cottonwood Creek Comment
  RSA48581  Alyssum alyssoides P. A. Munz 1949-5-18 13307 Siskiyou 14 miles SW of Gazelle on Callahan road. 1463 Comment
  HSC27225  Amaranthus albus J. P. Smith, J. O. Sawyer 1971-9-18 4802 Siskiyou Hwy. 3, between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  UC163667  Amaranthus californicus Geo. D. Butler 1908-8-14 64 Siskiyou Yreka Comment
  HSC86362  Amelanchier alnifolia J. O. Sawyer 1983-7-7 4233 Siskiyou Top of Medicine Mtn. 2085 Comment
  HSC101744  Amelanchier alnifolia var. semiintegrifolia J. P. Smith, J. O. Sawyer 2010-5-2 12805 Siskiyou Along the Salmon River Road at Butler Creek. 257 Comment
  HSC4961  Amelanchier alnifolia var. semiintegrifolia J. O. Sawyer 1968-9-13 707 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC4960  Amelanchier pallida J. O. Sawyer 1968-7-9 423 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  RSA237667  Amelanchier pumila Frederick W. Oettinger 1968-8-2 362 Siskiyou Meadow S of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  CAS-BOT-BC136898  Amelanchier utahensis Ellsworth Bethel 1923-5-20 s.n. Siskiyou McCloud Comment
  JEPS94380 Image available Amelanchier utahensis Vernon Oswald and Lowell Ahart 1997-7-28 8793 Siskiyou se of Medicine Lake (at Paynes Springs, on walls of Paynes Creek Canyon n of the campground); Paynes Springs, Paynes Creek Canyon 1981 Comment
  UC1034591  Amsinckia lycopsoides Douglas Barbe 1955-7-1 71 Siskiyou 0.6 mi e Etna (on s side of the road); Klamath Mountains 853 Comment
  RSA0089948  Amsinckia menziesii var. menziesii L. Ahart 2005-6-9 12046 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
  RSA0089979  Amsinckia retrorsa E. B. Copeland 1903-7-2 3552 Siskiyou Klamathon. Comment
  HSC3533  Amsinckia tessellata var. tessellata D. M. Thomson 1965-7-17 149 Siskiyou Lava Beds National Monument, N boundary road by Canbys Cross Comment
  HSC78309  Anaphalis margaritacea L. P. Janeway 1983-8-28 645 Siskiyou Poker Flat 1529 Comment
  RSA696900  Anaphalis margaritacea Leo Miller s.n. Siskiyou Siskiyou Mts. 854 Comment
  HSC24626  Androsace elongata subsp. acuta L. C. Wheeler 1935-4-18 3432 Siskiyou Greenhorn Creek, Siskiyou Mountains, alt. 3100 ft. S30 T45N R7W 945 Comment
  JEPS13784  Androsace elongata subsp. acuta Geo. D. Butler 1909-3-7 579 Siskiyou Yreka Comment
  RSA461382  Androsace elongata subsp. acuta Louis C. Wheeler 1935-3-16 3372 Siskiyou Klamathon, Klamath River. 701 Comment
  HSC39  Anemone deltoidea William J. Ferlatte 1966-6-23 135 Siskiyou Along the Yellow Rose Mine Trail. 1677 Comment
  HSC4932  Anemone deltoidea J. O. Sawyer 1968-9-28 746 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  UC130648  Anemone deltoidea H. M. Hall Jul 1909 8675 Siskiyou Salmon Mtns , Salmon River (Salmon River) 1584 Comment
  RSA256596  Anemone lyallii J. P. Smith 1974-5-26 7556 Siskiyou Along Forest Service Road 47N03. 1524 Comment
  CAS-BOT-BC210241  Anemone multifida var. multifida Dana York 2011-8-12 3044 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  UC903756  Anemone occidentalis M. B. Dunkle July, 1945 Siskiyou Marble Mts., Klamath Nat'l Forest Comment
  RSA233705  Anemone occidentalis Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38993 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  RSA238274  Anemone occidentalis Frederick W. Oettinger 1968-8-4 389 Siskiyou Along trail north of NE Crapo Peak Ridge. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2195 Comment
  JEPS52320  Anemone oregana Wayne Roderick 1963-6-12 Siskiyou e Cook and Green Pass (n of Seiad Valley); Siskiyou Mtns 1524 Comment
  UC630391  Angelica arguta Annetta Carter 1939-8-20 1460 Siskiyou 12 mi sw of Etna (trail from Zarina MIne to Taylor Lake, Salmon Mountains); Salmon Mountains 1767 Comment
  HSC34298  Angelica tomentosa J. P. Smith, J. O. Sawyer 1973-8-14 7292 Siskiyou W shore of Campbell Lake 1768 Comment
  HSC71964  Angelica tomentosa J. M. DiTomaso 1980-8-21 1895 Siskiyou Kidd Creek, Salmon-Trinity Alps Wilderness Area. E of Caribou Lakes 2043 Comment
  HSC71966  Angelica tomentosa J. M. DiTomaso 1980-8-20 1891 Siskiyou Trail at Caribou Lake in Salmon-Trinity Alps Wilderness Area 1951 Comment
  UC2016517  Anisocarpus madioides Richard Olmstead 1983-7-12 470 Siskiyou Along the Little North Fork of Salmon River ca. 1 mile from trailhead on Little North Fork trail on ridge to the west of the creek. Comment
  SEINET2030056 Image available Anisocoma acaulis C. L. Hitchcock 1940-3-23 5834 Siskiyou Red Rock Canyon Comment
  CAS-BOT-BC59279  Antennaria argentea L. E. Smith 1913-4-26 123 Siskiyou Dunsmuir Comment
  RSA416692  Antennaria argentea B. C. Templeton 1960-6-21 8550 Siskiyou Near summit of Scott Mt. Comment
  UC127735  Antennaria argentea Harley P. Chandler 1901-6-1 1714 Siskiyou at, (ridges and meadows near Marble Mountain) Shackleford Canyon; North Coast Ranges, Marble Mountain 1828 Comment
  UC454329  Antennaria argentea I. J. Condit 1911-7-4 Siskiyou Shasta Retreat Comment
  CAS-BOT-BC59242  Antennaria corymbosa Gilbert J. Muth 1969-8-6 1212 Siskiyou Boulder Peak 2529 Comment
  RSA48004  Antennaria dimorpha Roxana S. Ferris, Laura Lorraine 1948-6-12 11831 Siskiyou Gazelle Mtn grade, road betw Callahan and Gazelle. 1500 Comment
  CAS-BOT-BC58721  Antennaria geyeri Alice Eastwood 1921-7-29 10958 Siskiyou Little Mt. Hoffman Comment
  JEPS13375  Antennaria geyeri Duncan Dunning 1921-7-16 Siskiyou nw of Hambone; Toad Mountain Comment
  UC1222877  Antennaria howellii subsp. howellii Joseph P. Tracy 1950-7-20 19206 Siskiyou 5 mi se Elk Valley; Flint Valley 1432 Comment
  CAS-BOT-BC77345  Antennaria media John Thomas Howell 1937-7-24 13401 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC79904  Antennaria microphylla Douglas Barbe 1955-8-1 327 Siskiyou Summit of Mt. Bolivar, Scott Mts. 2468 Comment
  CAS-BOT-BC79909  Antennaria microphylla Harley P. Chandler 1901-6-1 1656 Siskiyou Marble Mountain 2438 Comment
  HSC62589  Antennaria racemosa Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  POM39276  Antennaria racemosa Geo. D. Butler 1910-6-4 1502 Siskiyou Shackleford Creek. Comment
  JEPS82437  Antennaria rosea Gilbert Muth 1966-7-25 451 Siskiyou Marble Mt. Lookout; Marble Mt. Wilderness Area, Marble Mt. Lookout 2097 Comment
  RSA20170  Antennaria rosea J. T. Howell 1937-7-21 13177 Siskiyou S Fork of Salmon river near Big Flat. 1524 Comment
  SBBG30513  Antennaria rosea D. Myrick 1968-6-26 2031 Siskiyou Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  RSA238784  Antennaria rosea Frederick W. Oettinger 1968-8-14 516 Siskiyou Midway between Tom Taylor Cabin and English Peak L. O.; open site is granitic gravel and soil. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2005 Comment
  SEINET11854066  Antennaria rosea H. P. Chandler 1901-1 1656 Siskiyou Marble Mountain 2438 Comment
  HSC76932  Antennaria rosea subsp. rosea K. T. Stillman 1976-8-7 213 Siskiyou Marble Mtn. Wilderness Area. 1951 Comment
  UCD129038  Antennaria umbrinella J. M. Tucker; R. Tofsrud 1948-8-2 1770 Siskiyou Panther Meadows, Mount Shasta. 2407 Comment
  SEINET12948030  Antirrhinum breweri G. D. Butler 1910-7-17 1569 Siskiyou Humbug Mountain. 1067 Comment
  HSC100337  Apera interrupta J. P. Smith 2011-7-15 13306 Siskiyou Along the road to Bray, 0.8 mi. from its junction with Tennant Road 1419 Comment
  UC164099  Apocynum androsaemifolium Geo. D. Butler 1908-7-5 75 Siskiyou dry land near Yreka Comment
  UC196342  Apocynum androsaemifolium A. A. Heller 1914-8-25 11703 Siskiyou along R.R. embankment near Deetz station opposite Black Butte 1158 Comment
  HSC2399  Apocynum androsaemifolium William J. Ferlatte 1966-8-18 408 Siskiyou 3 mi. S of Big Flat 1585 Comment
  RSA183745  Apocynum androsaemifolium subsp. pumilum Gilbert Muth 1965-8-6 191 Siskiyou Marble mts, trail to backside of Black Mt. Comment
  CAS-BOT-BC397943  Aquilegia formosa Alice Eastwood 1923-5-27 11959 Siskiyou Shasta Springs Comment
  UCD95560  Aquilegia formosa J. M. Tucker; D. V. Hemphill 1974-7-26 4288 Siskiyou Let 'Er Buck Meadows, 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  HSC64334  Aquilegia formosa var. formosa J. P. Smith, Steve Selva 1970-6-15 3975 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  HSC37161  Aquilegia formosa var. formosa A. M. Montalvo, J. D. Ackerman 1974-7-2 347 Siskiyou E slope of Mt. Eddy, near Morgan Meadows, W of Mt Shasta City. Comment
  HSC67712  Aquilegia formosa var. truncata John Palmer 1980-7-24 612 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  RSA211137  Aquilegia formosa var. truncata William J. Ferlatte 1966-8-17 392 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  HSC81529  Arabis divaricarpa Thomas W. Nelson, Jane P. Nelson 1980-7-19 6196 Siskiyou Along USFS Rd. 39N01 A at Fox Creek, 1 mi. from jct. with 39N01 1677 Comment
  RSA0126150  Arabis divaricarpa John F. Emmel 1974-7-22 522 Siskiyou Meadows 0.2 air mile N of N end of Lower Wright Lake, Marble Mountain Wilderness Area. 2088 Comment
  HSC26568  Arabis holboellii var. pinetorum J. P. Smith, J. O. Sawyer 1972-8-20 5758 Siskiyou Slope of Mt. Hoffman 2134 Comment
  POM144225  Arabis platysperma var. howellii M. S. Baker 1898-8-7 484 Siskiyou Medicine Lake. Comment
  POM95492  Arabis sparsiflora Geo. D. Butler 1910-4-16 1178 Siskiyou Klamath hills Comment
  JEPS53187  Arabis subpinnatifida Geo. D. Butler 1909-4-24 685 Siskiyou Greenhorn Mountain Comment
  UC166108  Arabis subpinnatifida Geo. D. Butler 1910-7-12 1763 Siskiyou Shackleford Creek Comment
  UC1174942  Aralia californica P. C. Everett and E. K. Balls 1959-10-24 23942 Siskiyou 6 mi. w. Red Bank F. S. Camp (on rd. to Somes Bar from Sawyers Bar) 609 Comment
  JEPS48993  Arceuthobium Geo. D. Butler 1908-8-4 270 Siskiyou head of Shackleford Creek 1676 Comment
  CAS-BOT-BC407727  Arceuthobium abietinum Marion Ownbey; Fred G. Meyer 1940-7-6 2212 Siskiyou Summit of Cayenne Ridge, near Marble Fountain Comment
  CHSC97967  Arceuthobium californicum R. L. Mathiasen 2005-3-12 530 Siskiyou 5.3 km from Siskiyou Lake on road to Castle Lake. Shasta-Trinity National Forest. 1330 Comment
  RSA237459  Arceuthobium californicum Frederick W. Oettinger 1969-9-5 1677 Siskiyou Between Abbotts Lake and Wiregrass Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  UCD81364  Arctostaphylos Roman Gankin; Brewer, Hildreth, and Milam 1965-8-11 610 Siskiyou 100 yards south of Somesbar Post Office, west of State Highway 96. Comment
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Feb 21 2015
  SEINET11984862  Arctostaphylos R. Gankin, Brewer; Hildreth, W. R.; Milam 1965-1 610 Siskiyou 100 yards S of Somesbar Post Office, W of CA 96 Comment
  LA105198  Arctostaphylos manzanita Steve Morgan; 1987-7-28 sn Siskiyou McGinnis Springs, 5 mi. NW of McCloud, Shasta-Trinity National Forest, S of Mt. Shasta Comment
  CAS-BOT-BC39987  Arctostaphylos nevadensis H. P. Bracelin 1931-6-21 459 Siskiyou North side of Mt. Eddy. above Dobkins Lake. 2133 Comment
  CAS-BOT-BC39988  Arctostaphylos nevadensis John Thomas Howell 1937-7-25 13440 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC46432  Arctostaphylos patula T. H. Harris 1951-6-1 s.n. Siskiyou Happy Camp. 1737 Comment
  CAS-BOT-BC46466  Arctostaphylos patula L. E. Smith 1913-4-10 69 Siskiyou Near Sisson. Comment
  CAS-BOT-BC46467  Arctostaphylos patula Alice Eastwood 1912-9-1 s.n. Siskiyou Sisson. Comment
  CAS-BOT-BC46521  Arctostaphylos patula Roger Raiche; Kurt Zadnik 1982-10-12 20820 Siskiyou On road to Mt. Eddy. 1524 Comment
  HSC745  Arctostaphylos patula William J. Ferlatte 1967-6-5 492 Siskiyou Big Flat, near public camp 1524 Comment
  HSC7700  Arctostaphylos patula Unknown Siskiyou Lava Beds N.M. Island Butte on Black Lava Flow 1646 Comment
  JEPS38843  Arctostaphylos patula Willis L. Jepson July 1894 14720 Siskiyou near Sisson; Mt. Shasta Comment
  JEPS49481  Arctostaphylos patula B. Wise Neilsen 1936-10-18 Siskiyou 2 mi nw Etna Mt.; Salmon Mt. Comment
  CHSC117378  Arctostaphylos patula subsp. patula Richard R. Halse 2015-3-21 9325 Siskiyou Weed; southern part of city, west side of Interstate Hwy. 5, off of Mountain View Drive. 1083 Comment
  SDSU2844  Arctostaphylos viscida D. F. Howe 1961-8-3 3128 Siskiyou North of Klamouth River, 36 miles east of Happy Camp. 488 Comment
  CAS-BOT-BC45327  Arctostaphylos viscida subsp. viscida W. R. Dudley 1901-8-16 s.n. Siskiyou Above delta on the Sacramento River Comment
  CAS-BOT-BC47021  Arctostaphylos viscida subsp. viscida Lewis S. Rose 1945-6-22 45162 Siskiyou Walker, Klamath River. 533 Comment
  JEPS89015  Arctostaphylos viscida subsp. viscida Geo. D. Butler 1909-4-26 693 Siskiyou Oro Fino Comment
  UC1971401  Arctostaphylos viscida subsp. viscida Louis C. Wheeler 1958-8-19 7401 Siskiyou Seiad Creek Mine. Comment
  UC722705  Arenaria congesta var. suffrutescens C. L. Hitchcock, J. S. Martin 1939-7-9 5324 Siskiyou 1/2 mi se King's Castle; Marble Mts. 1828 Comment
  UC852267  Arenaria congesta var. suffrutescens John Thomas Howell 1939-8-2 14916 Siskiyou Marble Mts., Spirit Lake 1828 Comment
  POM208262  Arenaria serpyllifolia L. C. Wheeler 1934-6-4 2641 Siskiyou Ridge E Negro Gulch off Klamath River; Siskiyou Mts. 1067 Comment
  CAS-BOT-BC82246  Arnica chamissonis L. E. Smith 1915-7-1 s.n. Siskiyou Bray Comment
  CAS-BOT-BC82247  Arnica chamissonis Calvin McMillan; Malcom A. Nobs 1949-6-17 797 Siskiyou Grass Lake, Highway 97 Comment
  CHSC88368  Arnica chamissonis Jenny Marr 1993-7-1 174 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC82250  Arnica chamissonis A. A. Heller 1938-7-13 15270 Siskiyou about a mile south of Bray Comment
  CDA10118  Arnica cordifolia T. C. Fuller 1958-6-18 1795 Siskiyou Summit of Siskiyou Mountains along road between Cave Junction & Happy Camp. 0 Comment
  UC166178  Arnica cordifolia Geo. D. Butler 1910-4-21 1216 Siskiyou Oro Fino Comment
  SEINET6774985 Image available Arnica cordifolia G. D. Butler 1910-4-21 1216 Siskiyou Dry hills Oro Fiero [illegible] Comment
  HSC73221  Arnica discoidea Gail Newton 1980-6-20 505 Siskiyou Near Bald Mtn. 1097 Comment
  SBBG7587  Arnica discoidea H. and M. Dearing 1939-6-19 3684 Siskiyou high up French Crk Comment
  UC1190274  Arnica discoidea Ira L. Wiggins 1955-7-23 13465 Siskiyou ridge w of, s side of S Fork of Salmon River China Creek; S Fork of Salmon River 1005 Comment
  OBI55537  Arnica discoidea David J. Keil, Kathleen Keil 1992-7-24 23559 Siskiyou Klamath Natl forest E of Callahan. 1 mi N of Kangaroo Lake on Rail Crk rd Comment
  CAS-BOT-BC82658  Arnica latifolia Gilbert Muth 1966-7-19 431 Siskiyou Marble Mountain Lookout trail, Marble Mts. 1828 Comment
  SEINET516276  Arnica longifolia Vernon H. Oswald 1997-7-28 8790 Siskiyou SE of Medicine Lake at Paynes Springs. 1981 Comment
  UC165319  Arnica mollis Geo. D. Butler 1908-8-4 336 Siskiyou head of Shackleford Creek Comment
  UCD129170  Arnica mollis J. M. Tucker 1974-7-28 4322 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  JEPS109883  Arnica viscosa Dean W. Taylor 2005-8-18 19467 Siskiyou Dry Creek Peak, cirque on north face at headwaters Antelope Creek (ca. 12 air miles NE of the summit of Mt. Shasta) 1950 Comment
  JEPS32671  Arnica viscosa Paul C. Hutchison 1962-8-2 938 Siskiyou between Panther Meadow and top of ski lift Mt. Shasta 2895 Comment
  CAS-BOT-BC84976  Artemisia arbuscula subsp. arbuscula Louis C. Wheeler 1934-8-26 3226 Siskiyou Trapper Cr. - Klamath National Forest 1981 Comment
  CAS-BOT-BC84977  Artemisia arbuscula subsp. arbuscula Louis C. Wheeler 1934-8-26 3226 Siskiyou Trapper Cr. - Klamath National Forest 1981 Comment
  HSC77111  Artemisia arbuscula subsp. thermopola K. T. Stillman 1976-6-25 97 Siskiyou Marble Mtn. Wilderness Area, between Marble Gap and Elk Valley Trail 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
  CAS-BOT-BC90478  Artemisia douglasiana D. D. K. 1938-8-19 11509 Siskiyou along the margin of, and in the vicinity of, one of the overflow creeks from the Mount Shasta reservoir above Howard 1219 Comment
  SEINET6775399 Image available Artemisia douglasiana G. D. Butler 1910-7-29 1798 Siskiyou Yreka Comment
  HSC68403  Aruncus dioicus var. acuminatus Maralyn A. Renner 1980-7-4 1383 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  CAS-BOT-BC447710  Aruncus dioicus var. vulgaris John Thomas Howell 1966-8-3 497 Siskiyou Marble Valley by creek; Marble Mts. 1792 Comment
  CAS-BOT-BC400588  Asarum caudatum Alice Eastwood 1923-5-18 11853 Siskiyou Shasta Springs Comment
  RSA416099  Asarum hartwegii Anonymous 1907-1 s.n. Siskiyou Near Dunsmuir Comment
  HSC58844  Asclepias cordifolia Marvin Butler 1971-7-12 118 Siskiyou Near Copper Creek, close to the town of Cave Jct. 1464 Comment
  SEINET10923196  Asclepias fascicularis Edwin B. Copel 1903-7-4 Copeland 3558 Siskiyou Klamathon Comment
  JEPS117565  Asclepias speciosa Lowell Ahart, John Dittes 2010-7-30 16965 Siskiyou About 10 yards west of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  POM210962  Aspidotis densa L. C. Wheeler 1934-8-13 3112 Siskiyou East Fork Horse Creek, Siskiyou Mountains 1982 Comment
  POM39489  Aster torreyi Edward Palmer 1892-7-13 2516 Siskiyou Mount Shasta and vicinity Comment
  UC82618  Astragalus accidens var. hendersonii Copeland 1903-7-6 3512 Siskiyou Hornbrook Comment
  CAS-BOT-BC178819  Astragalus californicus A. A. Heller 1905-6-22 8082 Siskiyou Between Igerna and Weed. Comment
  CAS-BOT-BC27497  Astragalus californicus Edward Lee Greene 1876-5-9 764 Siskiyou near Yreka Comment
  POM204045  Astragalus californicus Alice Eastwood 1934-4-20 1743 Siskiyou Near Yreka on Ft. Jones road. Comment
  SEINET10687772 Image available Astragalus californicus Edward L. Greene Greene 764 Siskiyou Yreka. Comment
  JEPS94893  Astragalus curvicarpus var. curvicarpus Vernon H. Oswald and Lowell Ahart 1998-6-11 9183 Siskiyou ne of Weed (Shasta National Forest plantation on w side of Highway 97 2.2 mi ne of Lake Shastina-Big Springs Road); Shasta National Forest, Highway 97 1066 Comment
  RSA715776  Astragalus filipes L. Ahart 2005-6-10 12092 Siskiyou About 150 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. 777 Comment
  CDA26674  Astragalus gambelianus G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2776 Siskiyou Yreka. West of Motel 6, south of town, north of Greenhorn Creek Road. Comment
  CAS-BOT-BC192920  Astragalus purshii var. lectulus L. E. Smith 1914-4-20 634 Siskiyou Yreka Comment
  CAS-BOT-BC192968  Astragalus purshii var. purshii Copeland 1903-7-6 3557 Siskiyou Hornbrook Comment
  HSC39321  Astragalus purshii var. tinctus J. P. Smith 1974-5-26 7385 Siskiyou Along FS Rd. 47N03 1524 Comment
  RSA275306  Astragalus purshii var. tinctus Jennifer Whipple 1976-5-2 915 Siskiyou Scott Valley near Weston Gulch. Comment
  CHSC837  Astragalus whitneyi var. siskiyouensis V. Holt 1932-6-26 Siskiyou Mt. Eddy. 1219 Comment
  SEINET3165921  Astragalus whitneyi var. siskiyouensis R. W. Spellenberg 2006-6-19 13741 Siskiyou along USFS access road 4.3 km E of Claif. Hwy. 139, the jct of road and highway 31 km SE of Modoc Co. line (Just S of Adin) Comment
  CAS-BOT-BC198708  Astragalus whitneyi var. siskiyouensis A. A. Heller 1915-8-26 12220 Siskiyou Near the source of Wagon Creek, Mt. Eddy 2590 Comment
  RSA249717  Astragalus whitneyi var. siskiyouensis Frederick W. Oettinger 1969-7-25 s.n. Siskiyou Scott Mts., Shasta-Trinity National Forest.; c. 14 air mi. SW of Weed, 0.4 mi. NE of Rock Fence Creek along road to Kangaroo Lake. Comment
  HSC27968  Asyneuma prenanthoides Carl W. Mize 1972-8-17 103 Siskiyou S of Gates Creek 488 Comment
  HSC44583  Asyneuma prenanthoides Laura Witherspoon 1977-8-10 Siskiyou 2 mi. up FS Rd. 12N13 W of Bald Butte 610 Comment
  CAS-BOT-BC68703  Athyrium alpestre var. americanum John Thomas Howell 1939-8-9 15227 Siskiyou Marble Mts. - ride sout of Marble Valley Comment
  HSC29366  Athyrium distentifolium var. americanum Frederick W. Oettinger 1968-8-12 499 Siskiyou Marble Mtn. Wilderness Area, just SE of Tobacco Lake 1890 Comment
  UC71340  Athyrium filix-femina var. cyclosorum unknown Siskiyou near Mt Shasta Comment
  RSA422252  Atriplex L. C. Wheeler 1934-10-21 3329 Siskiyou Shasta Valley 4 mi E Grenada 869 Comment
  CHSC72233  Atriplex triangularis Vernon H. Oswald 1998-9-16 9650 Siskiyou Tour Route at Lower Klamath NWR 3 mi south of Hwy. 161. 1243 Comment
  RSA210844  Atriplex truncata R. F. Thorne, J. Henrickson, C. W. Tilforth 1969-9-3 39036 Siskiyou Along Hwy 161 on N side of Lower Klamath Lake, Lake Klamath National Wildlife Refuge, 1.9 miles E of junction of Hwys 97 and 161. Comment
  UC166118  Balsamorhiza deltoidea Geo. D. Butler 1909-4-14 595 Siskiyou Humbug Road Comment
  CAS-BOT-BC106541  Balsamorhiza deltoidea Dorothy Parker 1961-4-20 825 Siskiyou Near Callahan 950 Comment
  CAS-BOT-BC100061  Balsamorhiza lanata L. E. Smith 1913-4-22 86 Siskiyou Yreka Comment
  UC673213  Balsamorhiza lanata Lincoln Constance and Reed C. Rollins 1942-5-14 2919 Siskiyou 1 mi east of Yreka; Klamath-Siskiyou Region 762 Comment
  POM350743  Balsamorhiza terebinthacea M. A. Baker 1977-5-22 327 Siskiyou One mile west of Hwy 3 on moist south-facing bank of road to Little Duck Lake and Sugar Lake. Comment
  SBBG30532  Barbarea orthoceras D. Myrick 1968-6-24 1000 Siskiyou Mountain Meadow Ranch, Big Flat, Coffee Crk; Trinity Alps 1524 Comment
  HSC39319  Berberis aquifolium var. repens J. P. Smith 1974-5-26 7382 Siskiyou Along FS Rd. 47N03 1524 Comment
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Feb 26 2013
  HSC65095  Berberis aquifolium var. repens J. P. Smith 1973-5-5 6399 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  CAS-BOT-BC75726  Berberis nervosa Geo. B. Grant 1902-9-14 s.n. Siskiyou Dunsmuir. 609 Comment
  CAS-BOT-BC75727  Berberis nervosa Ira L. Wiggins 1955-7-21 13441 Siskiyou Rush Creek Trail 2 miles above Mountain View Ranch. 1097 Comment
  CAS-BOT-BC76000  Berberis pumila T. H. Harris 1951-6-1 s.n. Siskiyou Happy Camp. 1524 Comment
  UCD127249  Berula erecta T. F. O' Sullivan 1935-9-10 s.n. Siskiyou Dorris. Comment
  HSC76736  Bistorta bistortoides K. T. Stillman 1976-7-14 236 Siskiyou Marble Mtn. Wilderness Area; Big Rock Camp & slope to Elk Valley 2073 Comment
  CAS-BOT-BC127903  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek, Siskiyou Mts. 914 Comment
  CAS-BOT-BC127936  Blepharipappus scaber J. J. Walters 1936-5-30 s.n. Siskiyou Bogus Creek, one mile above its confluence with the Klamath River Comment
  CHSC63494  Blepharipappus scaber Vernon H. Oswald; Lowell Ahart 1994-8-1 6444 Siskiyou Junction of Forest Rd. 17 and Stewart Springs Rd., W of Weed. 1146 Comment
  HSC68501  Blepharipappus scaber Maralyn A. Renner 1980-6-22 908 Siskiyou Slopes N of Little Shasta River 1372 Comment
  UC1211907  Blepharipappus scaber Roy L. Taylor 1960-6-12 4444 Siskiyou 1 mi w of jtn. of Hwy. 96 (Klamath River rd) and Hwy. 99 n of Yreka, above Klamath River Hwy. 96 Comment
  POM261245  Blepharipappus scaber H. C. Cantelow 1936-5-21 s.n. Siskiyou 12 miles from Etna on road to Callahan. Comment
  POM31557  Blepharipappus scaber Geo. D. Butler 1909-4-14 590 Siskiyou Humbug Creek Comment
  RSA256697  Blepharipappus scaber J. P. Smith 1974-5-25 7506 Siskiyou Along road 8, 2.4 miles west of its junction with State Route 3. 976 Comment
  CAS-BOT-BC15790  Boechera acutina John Thomas Howell 1937-7-24 13418 Siskiyou Salmon-Trinity Alps. Caribou Basin. 2286 Comment
  UC375280  Boechera breweri Geo. D. Butler 1910-3-5 1118 Siskiyou Shasta Rim Comment
  JEPS60252  Boechera breweri subsp. shastaensis L. R. Heckard with L. Constance and R. Ornduff 1969-6-25 2319 Siskiyou 15 mi from U.S. Highway 99 (off the Gilman Raod, on n side of McCloud River arm of Lake Shasta) 487 Comment
  CAS-BOT-BC13809  Boechera howellii William Bridge Cooke 1941-8-14 16177 Siskiyou Mount Shasta. Above Horse Camp. 2743 Comment
  CAS-BOT-BC25614  Boechera retrofracta John Thomas Howell 1939-8-3 14952 Siskiyou Marble Mountains. Spriit Lake. 1828 Comment
  CAS-BOT-BC25619  Boechera retrofracta Roxana S. Ferris; Laura Lorraine 1948-6-12 11762 Siskiyou East fork of Scott River one mile north of Callahan. Comment
  CAS-BOT-BC25623  Boechera retrofracta George Dexter Butler 1909-5-1 728 Siskiyou Near Yreka. Comment
  SEINET3132274  Boechera retrofracta G. D. Butler 1163 Siskiyou Dryland, Loy Lake, Shackleford Creek. 1219 Comment
  CAS-BOT-BC438786  Boechera rollei Dana York 2012-7-21 3129 Siskiyou Klamath/Siskiyou Mts. Rogue River - Siskiyou National Forest, Siskiyou Mountains, ridge above Echo Lake. 1790 Comment
  UC673133  Boechera subpinnatifida Lincoln Constance and Reed C. Rollins 1942-5-14 2923 Siskiyou 4 mi w Yreka (road to Walker Post Office); Klamath-Siskiyou Region 1219 Comment
  POM32013  Boisduvalia densiflora E. B. Copeland 1903-7-7 3543 Siskiyou Hornbrook. Comment
  UC1611325  Botrychium pinnatum Donald Burk 1993-10-1 Siskiyou ca. 3/4 mi e Gray Butte radio facilities (between confluence of 2 streams); s slope Mt. Shasta 1950 Comment
  RSA68957  Boykinia major A. E. Culbertson 1943-8-8 1 Siskiyou Castle Lake, in a N facing cirque with an abrupt 1000 backwall. 14 miles SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mtns. 2000 above Sacramento River within 10 air miles of its headwaters to the W. 1656 Comment
  CAS-BOT-BC127861  Brickellia grandiflora John Thomas Howell 1939-8-4 15044 Siskiyou Marble Rim. Marble Mts. Comment
  SEINET8399968  Brodiaea elegans L. E. Detling 1959-6-8 8225 Siskiyou Scott River near Scott Bar. 579 Comment
  UC1190170  Brodiaea elegans subsp. elegans Ira L. Wiggins 1955-7-25 13509 Siskiyou meadow Mountain View Ranch 960 Comment
  CDA1789  Bromus briziformis J. R. Grisham 1958-6-16 582 -58 Siskiyou Gazelle. 0 Comment
  HSC101401  Bromus carinatus var. marginatus J. P. Smith, J. O. Sawyer, R. J. Cole 2010-8-7 13068 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2005 Comment
  UCD59161  Bromus carinatus var. marginatus T. C. Fuller 1958-6-19 1801 Siskiyou Tom Williams property. 4 miles northeast of Montague. Comment
  UCD59193  Bromus carinatus var. marginatus Geo. D. Butler Date Unknown 844 Siskiyou Near Yreka. Comment
  UCD58853  Bromus inermis subsp. inermis Al Franklin 1987-7-10 87 -29 Siskiyou Flank of Everitt shield volcano, near Mt. Shasta. 1609 Comment
  RSA239136  Bromus marginatus Frederick W. Oettinger 1968-8-8 453 Siskiyou Crapo Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  UC1190229  Bromus orcuttianus Ira L. Wiggins 1955-7-24 13497 Siskiyou between upper reaches of China Creek and Blind Horse Creek 1645 Comment
  UC1265362  Bromus orcuttianus F. W. Oettinger 1968-9-2 664 Siskiyou Salmon Mountains, sw side of Upper English Lake, w Siskiyou County Upper English Lake; Salmon Mountains, Upper English Lake 1868 Comment
  HSC65420  Bromus tectorum J. P. Smith 1973-5-5 6548 Siskiyou Scott Bar along the Scott River Comment
  NY664638  Bromus tectorum A. A. Heller 1916-6-20 12405 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188.7 Comment
  POM363990  Bromus tectorum M. B. Dunkle 1945-7-19 9233 Siskiyou Klamath National Forest. Marble Mts. Marble summit, Marble rim trail. Comment
  UC1024790  Bromus tectorum Leo Whitney 1934-6-29 2232 Siskiyou Tennant 1524 Comment
  HSC31125  Bromus vulgaris J. O. Sawyer 1971-8-19 2456 Siskiyou 2012 Comment
  UCD60244  Bromus vulgaris A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3448 Siskiyou 11 miles north of Happy Camp. Banks of Indian Creek. Comment
  UC1265381  Calamagrostis breweri Frederick W. Oettinger 1969-9-3 1613 Siskiyou English Peak, N slope Western Siskiyou Co., Salmon Mountains, Marble Mountain Wild (Shasta Ridge) 2072 Comment
  CAS-BOT-BC185262  Calamagrostis koelerioides Doris K. Kildale 1928-8-19 6544 Siskiyou Summit of divide between English Lake and Hancock Lake on trail to Marble Mountain. 2194 Comment
  CAS-BOT-BC185264  Calamagrostis koelerioides A. A. Heller 1915-8-26 12243 Siskiyou North side of Mount Eddy. Comment
  CAS-BOT-BC185258  Calamagrostis koelerioides Doris K. Kildale 1929-8-24 8814 Siskiyou Preston Peak. 2133 Comment
  JEPS42838  Callitriche verna Geo. D. Butler 1908-12-27 1540 Siskiyou near Oro Fino Comment
  HSC45162  Callitropsis nootkatensis J. O. Sawyer, E. Cope 1977-6-20 2963 Siskiyou Behind Devil's Punchbowl 1829 Comment
  CAS-BOT-BC85740  Calocedrus decurrens L. B. Kildale 1930-6-1 9838 Siskiyou Mill Creek near Etna Mills Comment
  HSC68393  Calocedrus decurrens Maralyn A. Renner 1980-6-26 1247 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC68565  Calocedrus decurrens Maralyn A. Renner 1980-6-7 793 Siskiyou N of Greenhorn Rd. Comment
  HSC69144  Calocedrus decurrens Maralyn A. Renner 1980-8-8 2473 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  HSC69737  Calocedrus decurrens Maralyn A. Renner 1980-6-26 1280 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  JEPS113327  Calochortus elegans L. P. Janeway 2006-7-4 8795 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. Comment
  CAS-BOT-BC488609  Calochortus elegans var. nanus L. E. Smith 1913-5-12 208 Siskiyou Dunsmuir Comment
  CAS-BOT-BC132415  Calochortus greenei F. T. Callahan II 1989-9-1 s.n. Siskiyou NNW. of Iron Gate Res. 609 Comment
  CHSC71511  Calochortus macrocarpus Vernon H. Oswald; Lowell Ahart 1998-7-21 9321 Siskiyou Hwy. 97 at the 11.0 mi mile marker 1.2 mi west of A12 northeast of Weed. 1188 Comment
  RSA52433  Calochortus macrocarpus Dorothy Parker 1948-7-26 158 Siskiyou Cal-Ore, near Calif.-Ore. border 1220 Comment
  UC54188  Calochortus nudus H. M. Hall and E. B. Babcock Jun 1903 4067 Siskiyou n of Sisson (to near Upton); Sierra Nevada Mountains, Mount Shasta 1066 Comment
  UC618675  Calochortus nudus var. shastensis unknown 1938-7-15 11219 Siskiyou lower Wagon Camp; Mount Shasta 1706 Comment
  SJSU2575  Calochortus tolmiei H. L. Buckalew 1962-7-9 Siskiyou near Poker Flat c. 4 mi W of junction of Indian Creek with W Fork Indian Creek, Siskiyou Mts 1066 Comment
  CAS-BOT-BC181509  Caltha leptosepala J. C. Chastain 1917-6-1 s.n. Siskiyou North fork, Trinity River Comment
  UC1876208  Calycadenia fremontii Gerald D. Carr 1974-9-12 783 Siskiyou 0.4 mi E of Somesbar on Etna-Somesbar Rd. Comment
  JEPS24805  Calycadenia truncata Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6814 Siskiyou about 4 mi n Weed (along US Hwy 99, on short grade down into floor of valley); Shasta Valley 920 Comment
  RSA789267  Calycadenia truncata R. L. Carr 1978-8-17 2129 Siskiyou Ca. 4.0 miles west of Gazelle on the Gazelle-Callahan Road, south of Yreka. 950 Comment
  UC1971695  Calycadenia truncata 1974-9-12 2160 Siskiyou 0.4 mi E of Somesbar on Salmon River Road 195 Comment
  POM52739  Calycadenia truncata subsp. scabrella Geo. D. Butler 1910-7-30 1801 Siskiyou Near Yreka. Comment
  CAS-BOT-BC272746  Calycadenia truncata subsp. truncata Louis C. Wheeler 1934-6-26 2787 Siskiyou Camp Lowe, Klamath River, Siskiyou Mts. 762 Comment
  HSC62614  Calyptridium umbellatum Al Hobart 1968-6-20 Siskiyou Youngs Valley Comment
  UC454262  Calyptridium umbellatum I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Castle Lake Comment
  HSC646  Calystegia malacophylla William J. Ferlatte Jul 1967 616 Siskiyou Along the Yellow Rose Mine Trail 1677 Comment
  SEINET3992092  Camassia quamash Unknown 1940-5-15 1224 Siskiyou Bull Meadows, Goosenest Mountain 1524 Comment
  UC163724  Camassia quamash subsp. breviflora Geo. D. Butler 1909-6-22 890 Siskiyou 2 mi ne of Mount Shasta (Goosenest Foothills); Goosenest Foothills Comment
  CAS-BOT-BC36991  Camelina microcarpa L. E. Smith 1913-6-12 351 Siskiyou Sisson. Comment
  CAS-BOT-BC160910  Camissonia tanacetifolia subsp. tanacetifolia V. June Wetherell 1961-8-9 490 Siskiyou Lava Beds National Monument Comment
  SEINET10939016  Campanula prenanthoides Hutchinson 1932-7-7 HUTCHINSON 4226 Siskiyou Salmon Mountains; near north Fork of Salmon River between Sine's Bar and Fork of Salmon 274 Comment
  HSC91393  Campanula rotundifolia Jennifer Whipple 1976-7-24 1556 Siskiyou Mt. Eddy, SW of Dobkins Lake 2256 Comment
  HSC49931  Campanula scabrella Gilbert Muth 1978-8-1 6957 Siskiyou Near Cory Peak, close to the town of Callahan. 2195 Comment
  SEINET10463383  Campanula scabrella William R. Dudley 1899-8-26 Dudley s.n. Siskiyou Slopes and top of Mount Eddy Comment
  SEINET10872980  Campanula scouleri Muth 1975-8-1 MUTH s.n. Siskiyou Near Sutcliffe Creek; Preston Peak quadrangle near Happy Camp 1341 Comment
  UC61194  Campanula scouleri W. A. Setchell, C. C. Dobie 1902-7-12 Siskiyou Sisson Mount Shasta Comment
  SEINET10872983  Campanula scouleri A. Arthur Heller 1914-8-25 Heller s.n. Siskiyou Deetz Station near Black Butte 1158 Comment
  SEINET10905950  Campanula scouleri Parker 1950-8-3 Parker 488 Siskiyou LITTLE MILL CREEK, MOUNT BOLIVAR 1829 Comment
  CAS-BOT-BC37749  Cardamine californica John Thomas Howell 1939-8-9 15241 Siskiyou Marble Mountains. Shackleford Creek Trail. Comment
  HSC63072  Cardamine californica David Wheeler 1979-4-1 8 Siskiyou Matthews Creek Campground, S Fork of the Salmon River, between Cecilville and Forks of Salmon Comment
  UC165307  Cardaria draba Geo. D. Butler 1909-5-10 725 Siskiyou Yreka Comment
  CAS-BOT-BC18393  Carex Elmer I. Applegate 1895-5-28 782 Siskiyou Strawberry Valley. Sisson. Comment
  RSA14334  Carex Elmer I. Applegate 1923-8-17 3836 Siskiyou Medicine Lake. Comment
  UC1265325  Carex abrupta Frederick W. Oettinger 1968-9-6 803 Siskiyou on w shore of Hancock Lake Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  HSC76855  Carex amplifolia L. P. Janeway 1982-6-18 77 Siskiyou 1 1/2 mi. up FS 19N07 from Indian Creek Rd., near a small creek 701 Comment
  SEINET10586479  Carex amplifolia A. Arthur Heller 1905-6-5 Heller 7974 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  UCD77477  Carex angustata Robert E. Preston 2001-6-30 1665 Siskiyou Klamath National Forest, Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  CHSC106462  Carex atherodes Peter F. Zika 2009-8-16 24601 Siskiyou Cascade Range Highlands (CaRH). On north side of Route 97, 0.4 road miles ENE of Grass Lake Rest Area, in seasonally wet meadow of Grass Lake. 1540 Comment
  SEINET7484272 Image available Carex atherodes Peter F. Zika 2009-1 24601 Siskiyou on north side of Route 97, 0.4 road miles ENE of Grass Lake Rest Area 1540 Comment
  CHSC107146  Carex athrostachya R. E. Brainerd 2009-7-21 1532 Siskiyou Trinity Mountains, Gumboot Meadow; 12.2 air miles west of Dunsmuir. UTM Zone 10 541147E 4562996N. 1821 Comment
  CAS-BOT-BC19562  Carex bolanderi H. A. Thomas; J. H. Thomas 1954-7-21 4416 Siskiyou Salmon - Trinity Mountains. About 6 miles SE of Cecilville. West side of Rush Creek. 1158 Comment
  HSC37157  Carex bolanderi J. O. Sawyer 1969-7-23 1443 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  SEINET4110850  Carex bolanderi D. W. Taylor 2005-1 19401 Siskiyou Wagon Camp; along Forest Road 40N25, Panther Creek Drainage, Mount Shasta. 1685 Comment
  HSC41067  Carex bolanderi J. O. Sawyer 1969-6-27 866 Siskiyou Ridge between Duck Lake Creek & French Creek along FS 41N14 1280 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
  SD76153  Carex breweri Helen V. Witham 1969-10-9 606 Siskiyou Mt. Shasta; in scree at timberline. 2400 Comment
  SEINET7552949 Image available Carex breweri E. B. Copeland 1903-7-16 3517 Siskiyou Mt. Shasta. 3170 Comment
  SEINET7556585 Image available Carex deflexa var. boottii Unknown 1969-8-5 1217 Siskiyou Salmon Mountains. The high lake basins in the vicinity of English Peak Marble Mountain Wilderness Area. Near Crapo Peak at Crapo View Gap. Comment
  CHSC38998  Carex echinata subsp. echinata J. D. Jokerst 1983-7-5 1822 Siskiyou Atkin's Meadow in its NE corner. Ca 15 mi E of McCloud. Comment
  HSC96548  Carex echinata subsp. echinata Gordon Leppig 1998-7-10 904 Siskiyou Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  POM229215  Carex echinata subsp. echinata L. C. Wheeler 1935-7-26 3721 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  UCD140249  Carex exsiccata A. H. Murphy 1958-8-4 58 A Siskiyou Little Elk Lake Marble Mts. 1676 Comment
  CHSC106473  Carex fracta Peter F. Zika 2009-8-16 24603 Siskiyou Cascade Range Highlands (CaRH). Near top of Road A10 (Everett Memorial Highway), S slope of Mt. Shasta. 2370 Comment
  CAS-BOT-BC20749  Carex fracta Alice Eastwood; John Thomas Howell 1937-6-26 5058 Siskiyou Near Fork of Salmon Comment
  JEPS84060  Carex gigas L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6377 Siskiyou ca. 1.5 mi e Red Butte summit (ca. 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  SEINET8220425  Carex gigas J. Kierstead 1991-7-3 91 -96 Siskiyou Mt. Shasta Ranger District. Fawn Creek Meadow 1829 Comment
  SEINET7485275 Image available Carex hassei Peter F. Zika 2009-1 24535 Siskiyou near Pacific Crest Trail, Route 3, Scott Mountain Summit 1640 Comment
  CHSC39001  Carex hoodii J. D. Jokerst 1983-7-5 1827 Siskiyou Along the upper margin of the NE corner of Atkin's Meadow. Ca 15 air miles E. of McCloud. Comment
  HSC85843  Carex hoodii L. P. Janeway 1983-8-26 608 Siskiyou Poker Flat, across road on N side of meadow 1524 Comment
  CHSC95997  Carex integra L. P. Janeway 2006-7-4 8790 Siskiyou Klamath Ranges. Scott Mountains; Darlingtonia fen and creeklet complex above Road 40N13 1.6 air km west of Scott Mountain Summit. 1728 Comment
  RSA550445  Carex laeviculmis R. Tallent 1987-8-12 899 Siskiyou Klamath National Forest; Long Gulch Lake. 1940 Comment
  UC1608361  Carex laeviculmis J. Kierstead 1991-7-3 91 -94 Siskiyou Fawn Creek Meadow Shasta-Trinity National Forests, Mt. Shasta Ranger Dist. 1828 Comment
  HSC33993  Carex lenticularis var. lipocarpa J. P. Smith 1974-5-25 7482 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  HSC29637  Carex lenticularis var. lipocarpa Frederick W. Oettinger 1968-9-7 750 Siskiyou Marble Mtns. Wilderness Area, N side of Hancock Lake 2043 Comment
  JEPS105409  Carex luzulifolia Dean W. Taylor 1996-7-26 15840 Siskiyou Scott Mtns.; Crater Lake, in cirque above upper lake (about 10 air miles west of Weed); Klamath National Forest Comment
  HSC85708  Carex luzulina L. P. Janeway 1982-7-2 33 Siskiyou Poker Flat, end of FS Rd. 18N33 1524 Comment
  UCD140536  Carex luzulina J. M. Tucker 1950-7-23 1944 Siskiyou Panther Meadows, Mount Shasta. 2407 Comment
  POM254198  Carex luzulina var. ablata J. T. Howell 1939-8-7 15120 Siskiyou Marble Mountain: Sky High Valley. 1829 Comment
  JEPS109227  Carex luzulina var. luzulina D. W. Taylor 2005-8-18 19466 Siskiyou Dry Creek Peak, cirque on north face at headwaters Antelope Creek, ca 12 air miles NE of the summit of Mt. Shasta. Comment
  CDA33108  Carex luzulina var. luzulina Gordon Leppig 1998-7-1 911 Siskiyou Klamath National Forest; Russian Wilderness, Little Duck Lake Fen; cirque west of Little Duck Lake. Comment
  HSC85800  Carex microptera L. P. Janeway 1983-8-16 554 Siskiyou Poker Flat 1524 Comment
  JEPS25659  Carex microptera Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7302 Siskiyou 4 air-line mi nne Preston Peak (meadow at Twin Valley, just e of Del Norte County line); Siskiyou Mts., Twin Valley, watershed of Indian Creek 1493 Comment
  CHSC109970  Carex multicaulis Peter F. Zika; Julie Nelson 2012-6-21 25903 Siskiyou South Fork Willow Creek, 8.4 air km NE of Gazelle Mountain, Shasta-Trinity National Forest. Klamath Range (KR). 1145 Comment
  HSC37184  Carex multicaulis J. O. Sawyer 1968-6-25 298 Siskiyou 1646 Comment
  CAS-BOT-BC32220  Carex multicostata Rimo Bacigalupi; Mr. VanDeventer; Mrs. VanDeventer 1959-7-10 7303 Siskiyou Meadow at Twin Valley, Siskiyou Mts. just E of Del Norte County line. 1493 Comment
  HSC29654  Carex multicostata Frederick W. Oettinger, R. F. Thorne 1969-8-6 1244 Siskiyou Marble Mtn. Wilderness Area, Pine Lake Meadows 1845 Comment
  HSC39379  Carex multicostata J. O. Sawyer 1969-7-19 1426 Siskiyou SW facing slope above Deacon Lee Trail 2180 Comment
  CHSC38992  Carex nebrascensis J. D. Jokerst 1983-7-5 1828 Siskiyou N end of Atkin's Meadow. Ca 15 air miles east of McCloud. Comment
  RSA48014  Carex nebrascensis Roxana S. Ferris, Laura Lorraine s.n. Siskiyou East fork of Scott River drainage, Parker Ranch, Plowman s [Noyes] Valley. 1204 Comment
  JEPS25578  Carex nigricans Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7205 Siskiyou Panther Meadow, sw slopes of Mt. Shasta Mt. Shasta, Panther Meadow 2286 Comment
  UC1265348  Carex nigricans Frederick W. Oettinger 1969-9-2 1600 Siskiyou n side English Peak; Salmon Mountains, Marble Mountain Wilderness Area 2164 Comment
  SEINET7568935 Image available Carex nigricans Frederick W. Oettinger 1968-8-2 358 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, east end of Diamond Lake. 2073 Comment
  SEINET7568940 Image available Carex nigricans Unknown 1969-8-10 38950 Siskiyou Mt. Shasta National Forest, S slope of Mt. Shasta, Panther Creek Meadows. 2195 Comment
  UC143741  Carex nudata Copeland 1903-7-4 3541 Siskiyou Klamathon Pacific Coast Comment
  CAS-BOT-BC119480  Carex nudata Alice Eastwood 1923-5-27 11947 Siskiyou Shasta Springs. Comment
  SEINET7569409 Image available Carex nudata David Castaner 1989-6-19 10244 Siskiyou Trinity Creek campground, along highway 3 by Trinity River, north Trinity Center. Comment
  CAS-BOT-BC31055  Carex pachycarpa K. T. Stillman 1976-7-14 231 Siskiyou Scott Bar quad. Marble Mountain Wilderness Area. 1950 Comment
  CAS-BOT-BC119205  Carex pachystachya Louis C. Wheeler 1934-7-2 2841 Siskiyou Little Smoky Creek, Sterling Mt. Siskiyou Mts. 1280 Comment
  SEINET8275557  Carex pellita Elmer I. Applegate 1895-5-28 787 Siskiyou Sacramento River below Sisson Comment
  CAS-BOT-BC118776  Carex preslii John Thomas Howell 1937-7-29 13674 Siskiyou North side of Scott Mt. Comment
  UC834554  Carex preslii John Thomas Howell 1939-8-9 15203 Siskiyou Sky High Valley Marble Mountians 1828 Comment
  CAS-BOT-BC118786  Carex preslii Rimo Bacigalupi 1959-7-10 7302 Siskiyou In meadow at Twin Valley, Siskiyou Mts., just E of Del North County line. 1493 Comment
  RSA91047  Carex preslii J. T. Howell 1937-7-24 13431 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  CAS-BOT-BC118213  Carex rossii L. P. Janeway 1983-8-28 647 Siskiyou Preston Peak quad, At poker Flat 1524 Comment
  HSC91359  Carex rostrata Jennifer Whipple 1978-10-6 2423 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  CHSC40201  Carex scopulorum var. bracteosa L. P. Janeway 1983-8-6 509 Siskiyou At Poker Flat. Dampish part of e arm of meadow. 1524 Comment
  UC1265467  Carex scopulorum var. bracteosa Frederick W. Oettinger 1969-8-6 1262 Siskiyou w Tom's Lake lower hole; Salmon Mountains, Marble Mountain Wilderness 1950 Comment
  CDA33150  Carex serratodens C. S. Giebner 1968-5-21 Siskiyou Gazelle; Robertson prop., State Hwy. 0 Comment
  UC835683  Carex simulata Frank W. Gould 1940-5-14 1232 b Siskiyou Bull Meadow Goosenet Mountains 1524 Comment
  CAS-BOT-BC117251  Carex spectabilis John Thomas Howell 1937-7-25 13480 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  UC1147787  Carex spectabilis John Thomas Howell 1937-7-24 13432 Siskiyou Caribou Basin Salmon-Trinity Alps 1981 Comment
  CAS-BOT-BC117235  Carex spectabilis K. T. Stillman 1976-7-14 232 Siskiyou Scott Bar Quad. Marble Mountain Wilderness Area. 1950 Comment
  HSC30555  Carex spectabilis Frederick W. Oettinger 1969-8-4 1178 Siskiyou Marble Mtn. Wilderness Area, between Tobacco Lake and Mud Lake 1890 Comment
  POM254192  Carex spectabilis J. T. Howell 1939-8-9 15226 Siskiyou Marble Mts, Ridge S of Marble Valley Comment
  RSA238958  Carex spectabilis Frederick W. Oettinger 1969-9-2 1603 Siskiyou Bear Meadow near Tom Taylor Cabin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  UC1023842  Carex stipata var. stipata Douglas Barbe 1955-6-29 29 Siskiyou 1 mi e Callahan; Klamath Mountains 975 Comment
  HSC7173  Carex straminiformis J. T. Howell 1939-8-2 14908 Siskiyou Spirit Lake, Marble Mtns. 1829 Comment
  JEPS40878  Carex straminiformis Paul C. Hutchison 1962-8-2 929 Siskiyou between Panther Meadow and top of ski lift; Mt. Shasta 2743 Comment
  HSC76809  Carex straminiformis L. P. Janeway 1982-8-13 120 Siskiyou N edge of Bear Creek and next to small creeklet joining Bear Creek 1555 Comment
  SEINET11638246  Carex straminiformis C. G. Pringle 1882-1 s.n. Siskiyou Mount Shasta 2438 Comment
  UCD140917  Carex subfusca J. M. Tucker 1950-7-24 1951 Siskiyou beside Cold Creek at the Military Road crossing, about 6 miles northwest of Pilgrim Creek Experiement Station, east side of Mt. Shasta. Comment
  POM81966  Carex subfusca Geo D. Butler 1910-5-29 1426 Siskiyou Slough near Yreka. Comment
  JEPS121616  Carex utriculata Danielle Roach 2011-9-13 Siskiyou Bogbean Fen, Caldwell Lakes Basin, headwaters of Parks Creek, east slope of China Mountain. Abundant in flat fen, over gabbro. China Mountain quadrangle. CLB_A Comment
  HSC86443  Carex vernacula D. K. Imper Jun 1987 Siskiyou 8 mi. E of Mt. Shasta town, Mt. Shasta Wilderness, along Squaw Creek 2134 Comment
  SEINET7579992 Image available Carex vesicaria Veva Stansell 1995-10-1 3013 Siskiyou Whiskey Lake, south of Takilma, OR. 1463 Comment
  SEINET8403880  Carex vesicaria Wayne Rolle 1994-7-7 803 Siskiyou Pond above Bear Lake, Humboldt Meridian 1585 Comment
  HSC65415  Cassiope mertensiana subsp. ciliolata Rich White 1978-7-3 216 Siskiyou Saddle in Spur Ridge between Dillon Trail and 5759 1662 Comment
  CAS-BOT-BC248990  Castilleja Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh [Sky High] Lake Comment
  HSC509  Castilleja applegatei William J. Ferlatte 1967-6-27 540 Siskiyou Big Flat, near public campground 1524 Comment
  RSA211407  Castilleja applegatei subsp. pinetorum William J. Ferlatte 1967-7-26 751 Siskiyou Caribou Basin, Sawtooth Ridge. 2043 Comment
  CAS-BOT-BC243765  Castilleja applegatei var. pinetorum Elmer I. Applegate 1935-8-3 10016 Siskiyou North slope of Caldwell Butte, Lava Beds National Monument Comment
  CAS-BOT-BC33680  Castilleja arachnoidea George Dexter Butler 1908-8-6 422 Siskiyou Summit between Marble Valley and West Fork of Wooly Creek Comment
  POM42530  Castilleja arachnoidea Geo. D. Butler 1910-7-9 1712 Siskiyou Marble Mountain. 1829 Comment
  RSA237566  Castilleja arachnoidea Frederick W. Oettinger 1968-8-4 393 Siskiyou Crapo Peak Ridge. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2195 Comment
  CAS-BOT-BC254026  Castilleja miniata Gilbert J. Muth 1969-8-8 1306 Siskiyou Boulder Peak Ridge Gap meadow 2286 Comment
  HSC19255  Castilleja miniata J. O. Sawyer 1969-8-1 1651 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  HSC29388  Castilleja miniata Frederick W. Oettinger 1968-8-6 424 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1951 Comment
  HSC61115  Castilleja miniata Ruby Van Deventer 1955-7-31 Siskiyou FS Rd. 17N04, Doe Flat 1067 Comment
  JEPS74484  Castilleja miniata W. J. Ferlatte 1966-8-2 232 Siskiyou between campground and South Fork of Salmon River (Big Flat); Trinity Alps, Big Flat 1524 Comment
  POM15464  Castilleja miniata Copeland 1903-8-17 3809 Siskiyou Foot of Mt. Eddy. 1159 Comment
  CAS-BOT-BC254107  Castilleja miniata J. M. Tucker 1963-8-17 3740 Siskiyou at edge of Red Rock Creek, in vicinity of cabin; lower Red Rock Valley, Marble Mountain Wilderness Area 1493 Comment
  SBBG6812  Castilleja miniata subsp. miniata H. and M. Dearing 1939-7-2 Siskiyou near Salmon Mtn Comment
  SEINET3159254  Castilleja pruinosa G. D. Butler 1910-4-19 1198 Siskiyou near Yreka Comment
  POM42526  Castilleja pruinosa Geo. D. Butler 1910-5-1 1255 Siskiyou Near Yreka. Comment
  HSC24865  Castilleja schizotricha R. W. Spjut Aug 1970 1166 Siskiyou Near Box Camp, 2 mi. N of Marble Valley Guard Station on Black Mt. 2043 Comment
  CHSC71330  Castilleja tenuis Vernon H. Oswald; Lowell Ahart 1998-6-11 9207 Siskiyou Dry Lake on the south side of Tennant Rd. ca. 9 air mi east of Grass Lake, ca. 22 air mi northeast of Weed. 1402 Comment
  HSC103024  Catalpa bignonioides J. P. Smith 2014-6-6 13882 Siskiyou Along State Route 96, east of its junction with Dutch Creek Road, along bank of the Klamath River 589 Comment
  CAS-BOT-BC48653  Ceanothus cordulatus Alice Eastwood 1923-5-23 11908 Siskiyou Cantara Comment
  CAS-BOT-BC48702  Ceanothus cordulatus A. A. Heller 1905-6-16 8051 Siskiyou Near Sisson 1219 Comment
  CHSC1498  Ceanothus cordulatus V. Keeler 1935-5-9 Siskiyou Near Mt. Shasta City. 1097 Comment
  UC338006  Ceanothus cordulatus Lemmon 1889-6-28 Siskiyou near Mt. Eddy; Shasta region 1828 Comment
  UC61166  Ceanothus cordulatus W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Mt. Shasta Comment
  CAS-BOT-BC49186  Ceanothus cuneatus C. Hart Merriam 1919-9-24 s.n. Siskiyou Ager Comment
  CAS-BOT-BC49187  Ceanothus cuneatus Geo. D. Butler 1910-5-2 1267 Siskiyou Yreka Comment
  RSA399046  Ceanothus cuneatus Bonnie C. Templeton 1960-6-21 8534 Siskiyou Between California State line and the Agricultural Inspection Station Comment
  UC635520  Ceanothus cuneatus var. cuneatus Dorothy Tebbe 1929-7-15 119 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC50243  Ceanothus integerrimus J. Cromwell; A. Thoele; J. Schneider 1994-5-16 077 Siskiyou 5 mi. W of Seiad Valley on Hwy 96 390 Comment
  CAS-BOT-BC50686  Ceanothus integerrimus var. macrothyrsus Geo. D. Butler 1910-8-7 1819 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC50687  Ceanothus integerrimus var. macrothyrsus L. E. Detling 1950-6-8 6586 Siskiyou Dunsmuir 792 Comment
  JEPS42257  Ceanothus prostratus Willis L. Jepson 1894-8-4 14022 Siskiyou Mt. Shasta Comment
  POM85302  Ceanothus prostratus Geo. D. Butler 1910-5-10 1317 Siskiyou Goosenest Foothills. Comment
  RSA68934  Ceanothus prostratus A. E. Culbertson 1943-7-17 24 Siskiyou Down the grade on road to town of Shasta from Castle Lake, 5434ft, in N facing ciruqe with an abrupt 1000ft backwall, 14 miles SW of Mt. Shasta on N side of a 6600ft eastern spur of Trinity Mts., 2000ft above Sacramento River within 10 air miles of its headwaters to the W Comment
  HSC30657  Ceanothus velutinus Frederick W. Oettinger 1968-8-10 469 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area; east side of Hancock Lake 1936 Comment
  UC455427  Ceanothus velutinus I. J. Condit 1911-7-5 Siskiyou Mount Bradley near Shasta Retreat; Mount Bradley Comment
  UCD77492  Ceanothus velutinus Robert E. Preston 2001-6-23 1592 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, T42N R1W nw 1/4 of ne 1/4 Section 23 2042 Comment
  HSC40224  Centaurea cyanus J. P. Smith 1976-5-22 8791 Siskiyou Near County Dump in Scott Valley between Callahan and Etna 1037 Comment
  CDA20009  Centaurea jacea M. Bagley 2002-8-1 PDR P 087837 -A Siskiyou Northern California; Vicinity of Mt Shasta. 0 Comment
  HSC36718  Cephalanthera austiniae Brent Whiteley 1975-6-28 68 Siskiyou 915 Comment
  SJSU6517  Cephalanthera austiniae R. W. Trivelpiece 1972-7-11 144 Siskiyou near Elk Creek Divide NW of Boulder Peak c. 10 mi W of Happy Camp 1402 Comment
  CAS-BOT-BC384968  Cerastium arvense Annie M. Alexander; Louise Kellogg 1949-7-28 5882 Siskiyou Sky High Valley, Marble Mountains 1767 Comment
  RSA120777  Cercocarpus ledifolius G. D. Barbe 1955-7-29 315 Siskiyou below a serpentine outcropping on a Knott NW of Scott Mtn. 1738 Comment
  UC1037433  Cercocarpus ledifolius var. ledifolius Douglas Barbe 1955-8-1 321 Siskiyou e of Craggy Lookout (on Mount Bolivar, Scott Mountains); Klamath Mountains, Scott Mountains, Mount Bolivar 2255 Comment
  UC1037459  Cercocarpus ledifolius var. ledifolius Douglas Barbe 1955-7-29 315 Siskiyou Scott Mountain; Klamath Mountains, Scott Mountain 1737 Comment
  CAS-BOT-BC148521  Cercocarpus ledifolius var. ledifolius Mrs. Marian Campbell 1916-7-15 s.n. Siskiyou From Moraine Lake to Arroya Comment
  SBBG30610  Chaenactis douglasii D. Myrick 1968-6-22 1995 Siskiyou Lava Beds Nat Monument 1371 Comment
  CAS-BOT-BC276757  Chaenactis douglasii var. douglasii Peter H. Raven 1956-9-4 10393 Siskiyou Pass just S of Mount Eddy 2438 Comment
  CAS-BOT-BC106031  Chaenactis suffrutescens A. A. Heller 1928-6-9 14608 Siskiyou Near Castle Lake a short distance from Castle Crags. Near the source of the Sacramento River Comment
  RSA178679  Chaenactis suffrutescens A. A. Heller 1928-6-9 14608 Siskiyou Near Castle Lake, a short distance from Castle Crags in the yellow pine belt. Near the source of the Sacramento River. Comment
  UC1220371  Chaenactis suffrutescens Arthur S. Weston 1963-7-6 1005 Siskiyou 4 mi n of Cecilville (road from Sawyer's Bar to Cecilville) 1219 Comment
  UC229957  Chaenactis suffrutescens H. E. Brown Jun 11 1897-Jun 16 1897 411 Siskiyou n side Mt. Shasta 1524 Comment
  POM31491  Chaenactis suffrutescens Edward Palmer 1892-7-13 2480 Siskiyou Mount Shasta and vicinity Comment
  CAS-BOT-BC141578  Chamaebatiaria millefolium Elmer I. Applegate 1915-9-20 3323 Siskiyou Captain Jack's Stronghold, Modoc Lava Beds, near south shore of Tule Lake Comment
  CAS-BOT-BC141588  Chamaebatiaria millefolium John Thomas Howell 1934-7-4 12399 Siskiyou Se. corner of Siskiyou Co. Comment
  CAS-BOT-BC85663  Chamaecyparis lawsoniana Miss Herzinger 1903-11-1 s.n. Siskiyou Scott River Valley Comment
  UCR110582  Chamaecyparis nootkatensis L. C. Wheeler 1963-8-25 8275 Siskiyou Preston Peak: Summit ridge 2134 Comment
  RSA15484  Chamaesyce serpillifolia L. S. Rose 1936-7-29 36702 Siskiyou Shasta Springs. 762 Comment
  CHSC93669  Chamaesyce serpyllifolia Lowell Ahart; John Dittes 2005-6-10 12111 Siskiyou North of the poor dirt road, about 40 yards north of the Shasta River, about 200 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC68061  Chamaesyce serpyllifolia J. P. Smith, Steve Selva 1970-7-17 4420 Siskiyou Along Klamath River. Comment
  UC642565  Chamaesyce serpyllifolia L. W. Wheeler 1930-6-30 13578 Siskiyou Howard Mount Shasta Comment
  JEPS74470  Cheilanthes gracillima W. J. Ferlatte 1966-6-22 117 Siskiyou Josephine Lake basin Trinity Alps, Josephine Lake basin 1676 Comment
  CAS-BOT-BC68213  Cheilanthes gracillima H. M. Hall 1909-7-28 8674 Siskiyou Head of Salmon River 1645 Comment
  CAS-BOT-BC68242  Cheilanthes gracillima Gilbert Muth 1965-8-6 s.n. Siskiyou Trail to backside of Blk Mt. Comment
  CAS-BOT-BC460987  Chenopodium atrovirens John Thomas Howell 1937-7-22 13316 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  JEPS59737  Chenopodium botrys Willis L. Jepson 1894-8-9 14859 Siskiyou near Shasta Sprs.; Region of the Upper Sacramento, Horseshoe Bend Comment
  UC1540165  Chenopodium rubrum Dean W. Taylor 1987-8-9 9293 Siskiyou along Hwy 161 (OR border) 8.3 mi w Highway 139; Lower Klamath National Wildlife Refuge 1249 Comment
  CAS-BOT-BC452259  Chimaphila umbellata John Thomas Howell 1939-8-5 15068 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC452270  Chimaphila umbellata Alice Eastwood 1912-7-23 1352 Siskiyou Cantara Comment
  HSC142  Chimaphila umbellata William J. Ferlatte 1966-8-3 271 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's. 1524 Comment
  HSC68473  Chimaphila umbellata Maralyn A. Renner 1980-6-26 1223 Siskiyou SE edge of Flint Valley. 1390 Comment
  POM131999  Chimaphila umbellata E. B. Copeland 1903-8-15 3828 Siskiyou Mt. Shasta 1829 Comment
  CAS-BOT-BC452260  Chimaphila umbellata Gilbert Muth 1965-8-10 s.n. Siskiyou Marble Valley and along upper trails Comment
  POM132085  Chimaphila umbellata subsp. occidentalis E. B. Copeland 1903-8-15 3828 Siskiyou Mt. Shasta 1829 Comment
  CDA5619  Chorispora tenella L. Ahart, J. Dittes 2005-6-1 12120 Siskiyou East side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. Comment
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Oct 5 2019
  CHSC91253  Chorispora tenella Lowell Ahart; John Dittes 2005-6-10 12120 Siskiyou East side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  HSC36664  Chrysolepis chrysophylla Brent Whiteley 1975-6-28 91 Siskiyou 915 Comment
  UC705917  Chrysolepis chrysophylla Marion Ownbey, Fred G. Meyer 1940-7-7 2213 Siskiyou Cayenne Ridge; Marble Mountain Comment
  HSC67748  Chrysolepis sempervirens J. O. Sawyer, J. Cole 1980-7-20 3807 Siskiyou E side of Grouse Hill 2134 Comment
  HSC8065  Chrysolepis sempervirens Richard Spjut 1968-10-5 168 Siskiyou Along the trail to Sugar Creek Lake in the Salmon Mtns. 1524 Comment
  HSC91297  Chrysolepis sempervirens Jennifer Whipple 1977-8-6 2224 Siskiyou Dale Creek drainage on N face of Mount Eddy 2195 Comment
  HSC91334  Chrysolepis sempervirens Jennifer Whipple 1976-9-4 1796 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2348 Comment
  UC1539982  Chrysothamnus viscidiflorus subsp. viscidiflorus M. Mitchell 1936-5-19 36 Siskiyou 1.25 mi w Caldwell Butte 1417 Comment
  UC165412  Chrysothamnus viscidiflorus subsp. viscidiflorus Geo. D. Butler 1910-7-20 1731 Siskiyou Goose Nest foothills Goose Nest 1524 Comment
  UC60955  Cicuta douglasii Geo. B. Grant September 1902 5143 Siskiyou Mount Shasta Comment
  LA86550  Cinna latifolia J. M. Tucker; 1963-8-19 3775 Siskiyou Marble Mountain Wilderness Area, headwaters of Canyon Creek 1950 Comment
  HSC182  Circaea alpina subsp. pacifica William J. Ferlatte 1966-8-3 284 Siskiyou Josephine Lake basin. 1677 Comment
  CAS-BOT-BC285345  Cirsium andersonii C. G. Pringle August 28 s.n. Siskiyou Unspecified Comment
  CAS-BOT-BC278042  Cirsium cymosum L. B. Kildale 1930-6-1 9742 Siskiyou Salmon River at Somes Bar Comment
  CDA1184  Cirsium cymosum T. C. Fuller 1958-6-19 1830 Siskiyou South of road to Montague, 1.5 miles east of Yreka. 0 Comment
  CAS-BOT-BC288010  Cirsium occidentale var. candidissimum Carl B. Wolf 1927-8-26 1000 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  HSC26756  Cirsium occidentale var. candidissimum J. P. Smith, J. O. Sawyer 1971-9-18 4809 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  OBI54127  Cirsium scariosum var. robustum David J. Keil, Kathleen Keil 1992-7-24 23571 Siskiyou E of McCloud along hwy 89, 7.7 mi W of Shasta county line Comment
  CAS-BOT-BC285892  Cirsium vulgare A. A. Heller 1920-8-11 13501 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC285894  Cirsium vulgare Doris K. Kildale 1928-7-1 5321 Siskiyou Forks of Salmon, Salmon River Comment
  HSC26754  Cirsium vulgare J. P. Smith, J. O. Sawyer 1971-9-18 4818 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  CAS-BOT-BC163459  Clarkia purpurea subsp. quadrivulnera L. B. Kildale 1930-6-1 9699 Siskiyou Salmon River at Crapp Creek Comment
  CAS-BOT-BC163460  Clarkia purpurea subsp. quadrivulnera Rodney Gregg 1948-6-15 s.n. Siskiyou Near reservoir, Yreka Comment
  HSC64529  Clarkia purpurea subsp. quadrivulnera J. P. Smith, Steve Selva 1970-6-16 4082 Siskiyou Idlewild Campground 808 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
  JEPS80486  Claytonia palustris W. B. and V. G. Cooke 1923-5-23 56458 A Siskiyou Bear Springs; Mt. Shasta Comment
  HSC64297  Claytonia parviflora subsp. parviflora J. P. Smith 1973-5-5 6456 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  UC165441  Claytonia parviflora subsp. parviflora Geo. D. Butler 1910-5-8 1305 Siskiyou near Yreka Comment
  CAS-BOT-BC439810  Claytonia perfoliata Roxana S. Ferris; Laura Lorraine 1948-6-12 11886 Siskiyou Small tributary of Etna Creek below Mill Creek Bridge 1066 Comment
  HSC64413  Claytonia perfoliata J. P. Smith 1973-5-5 6411 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC37544  Claytonia rubra subsp. rubra J. P. Smith 1974-5-27 7607 Siskiyou Along FS Rd. 47N03 1524 Comment
  UCD100898  Claytonia sibirica J. M. Tucker 1974-7-28 4318 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  RSA211262  Claytonia sibirica William J. Ferlatte 1966-6-23 144 Siskiyou At Big Flat Hillside seep between campground and S. Fork of the Salmon River 1524 Comment
  RSA232527  Claytonia sibirica Donald Myrick 1968-6-26 2026 Siskiyou In shade along upper waters of Coffee Creek, Trinity Alps. 1463 Comment
  RSA238293  Claytonia sibirica Frederick W. Oettinger 1967-7-26 185 Siskiyou Stream bank just below Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  SEINET3159193  Clematis ligusticifolia G. D. Butler 1910-8-3 sn Siskiyou Yreka creek Comment
  HSC96796  Clinopodium douglasii S. Lyon 2006-6-29 8 Siskiyou E side of Eddy gulch Rd., 3.3 mi. S of intersection with Sawyers Bar Rd. 915 Comment
  UC338808  Clintonia uniflora unknown 1444 Siskiyou near Shasta; California Comment
  CAS-BOT-BC500969  Clintonia uniflora Geo. D. Butler 1908-8-4 98 Siskiyou Near Cold Spring Wooley Creek Comment
  RSA184801  Clintonia uniflora Gilbert Muth 1966-7-17 401 Siskiyou Trail to lookout, Marble Mountains. 1806 Comment
  SEINET13395184  Collinsia parviflora B. Byrne 1941-4-10 s.n. Siskiyou Sugar Creek. Comment
  HSC91182  Collinsia rattanii Jennifer Whipple 1976-6-30 1189 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  SJSU6507  Collinsia rattanii R. W. Trivelpiece 1972-6-15 120 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp Comment
  CHSC1739  Collinsia torreyi M. Yoder 1941-7-6 Siskiyou Castle Lake. 1981 Comment
  JEPS15386  Collinsia torreyi var. latifolia Douglas Barbe 1955-7-6 131 Siskiyou above se shore Taylor Lake (on slope); Klamath Mtns, Salmon Mtns 1950 Comment
  UC1409406  Collinsia torreyi var. latifolia Frederick W. Oettinger 1969-7-15 1028 Siskiyou meadow s of Tom Taylor Cabin (High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness, Salmon Mountains, Western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness 2026 Comment
  JEPS70999  Collomia grandiflora W. L. Jepson 1940-6-23 20025 Siskiyou n Mt. Shasta; Andesite station 975 Comment
  RSA12614  Collomia grandiflora C. B. Wolf 1934-7-5 5971 Siskiyou 6-6/10 mi. from Dry Lake Lookout on rd. to Oak Knoll R. S. on Klamath River 1524 Comment
  UC455465  Collomia grandiflora I. J. Condit 1909-8-22 Siskiyou Sisson Comment
  UC625482  Collomia grandiflora Frank W. Gould 1938-6-27 476 Siskiyou three mi n Mount Shasta (town) (near hwy US 99) 1082 Comment
  HSC219  Collomia grandiflora William J. Ferlatte 1966-8-3 254 Siskiyou Mtn. Meadow Ranch 1524 Comment
  HSC44488  Collomia tracyi K. Irwin 1977-5-22 385 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  SEINET516295  Conium maculatum Vernon H. Oswald 1998-9-16 9644 Siskiyou Vista Point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 8.7 mi E of Hwy. 97. 1244 Comment
  UC1177929  Corallorhiza maculata Francia Chisaki and Gene B. Newcomb 1958-6-21 1146 Siskiyou on Everitt Hill road 3.5 mi e junction with Highway 99 & 89; Everitt Hill 1447 Comment
  UC1409485  Corallorhiza maculata Frederick W. Oettinger 1969-7-28 1090 Siskiyou steep wsw slope nne Pine Lake (high lake basins in vicinity of English Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 2072 Comment
  UC164421  Corallorhiza striata Geo. D. Butler 1910-5-5 1292 Siskiyou Humbug Mountain Comment
  JEPS57397  Cordylanthus tenuis subsp. pallescens L. R. Heckard with T. I. Chuang 1968-7-3 1972 Siskiyou w Mt. Shasta City (se of Black Butte, along garbage disposal road just off hwy 5 (old 99)) 1173 Comment
  JEPS60490  Cordylanthus tenuis subsp. pallescens T. I. Chuang and L. R. Heckard 1969-8-21 6741 Siskiyou nw Mt. Shasta City (sw of Black Butte) 1066 Comment
  UCD123182  Cordylanthus tenuis subsp. viscidus Barbara L. Wilson; Richard E. Brainerd 2010-8-5 16220 Siskiyou Dunsmuir; Panorama Drive north of Interstate Highway 5 (1-5). 774 Comment
  JEPS32996  Cordylanthus tenuis subsp. viscidus Freed W. Hoffman 1950-7-11 3720 Siskiyou 17.2 mi n of Klamath River, western Cedar Camp road Comment
  UC964790  Cordylanthus tenuis subsp. viscidus Herbert L. Mason 1950-7-16 14064 Siskiyou 5 mi s summit of road from Happy Camp CA to Waldo OR Comment
  CAS-BOT-BC212274  Cornus glabrata Louis C. Wheeler 1934-7-16 2909 Siskiyou Oak Knoll R.S., Klamath Forest 670 Comment
  CAS-BOT-BC212284  Cornus glabrata Elmer I. Applegate 1923-9-5 3937 Siskiyou 12 miles down the Klamath River from the mouth of Shasta River Comment
  POM78082  Cornus glabrata Geo. D. Butler 1910-5-22 1385 Siskiyou Yreka Creek. Comment
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Jan 23 2011
  CAS-BOT-BC212272  Cornus glabrata A. A. Heller 1922-6-22 13666 Siskiyou Along the Pacific Highway on a stream bank on the slope of the siskiyou Mountains near the Oregon line. Comment
  CAS-BOT-BC210421  Cornus sericea Alice Eastwood 1912-7-17 1177 Siskiyou Sisson Comment
  CAS-BOT-BC212151  Cornus sericea William A. Dayton 1913-6-14 8257 Siskiyou On banks of Rail Creek, Shasta Forest 1341 Comment
  UC165402  Cornus sericea subsp. sericea Geo. D. Butler 1910-6-4 1490 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC180203  Corylus cornuta subsp. californica A. A. Heller 1905-6-5 7971 Siskiyou Between Shasta Retreat and Shasta Springs Comment
  HSC36742  Corylus cornuta subsp. californica Brent Whitely 1975-7-5 144 Siskiyou 213 Comment
  UCR246630  Crataegus douglasii G. D. Barbe 1984-6-8 4167 Siskiyou Confluence of Kidder Creek with Scott River, 0.7 mile north of Hwy 3 on Lighthill Road south of Fort Jones 831 Comment
  HSC101716  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-6-25 13266 Siskiyou Along the Oregon Stage Road, south of the bridge with its intersection with Callahan-Gazelle Road. 823 Comment
  CHSC3381  Crataegus suksdorfii Alice L. Stoll 1966-5-14 184 Siskiyou 1 miles N.E. of Callahan. Comment
  HSC35062  Crataegus suksdorfii J. P. Smith 1974-5-25 7642 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  RSA15690  Crataegus suksdorfii Carl B. Wolf 1927-8-26 1080 Siskiyou Klamath River. 4 miles below Hamburg Comment
  JEPS105110  Crepis acuminata Dean W. Taylor 1993-7-30 13988 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 miles east of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
  JEPS93879  Crepis acuminata Vernon H. Oswald and Lowell Ahart 1998-7-21 9319 Siskiyou Highway 97 at the 11.0 mi marker 1.2 mi w of A12 ne of Weed; Highway 97. 1188 Comment
  UC895309  Crepis capillaris Alice Eastwood 1912-7-17 1176 Siskiyou Sisson Comment
  UC221771  Crepis occidentalis H. E. Brown Jun 1 1897-Jun 10 1897 382 Siskiyou near Sisson 1083 Comment
  UC91845  Crepis occidentalis T. S. Brandegee Jul 1887 Siskiyou Sisson's Comment
  CAS-BOT-BC376493  Crepis occidentalis subsp. conjuncta Lewis S. Rose 1937-7-3 37388 Siskiyou Black Butte, N. of Mt. Shasta City 1005 Comment
  POM10576  Crepis pleurocarpa E. B. Copeland 1903-9-6 3755 Siskiyou Mt. Eddy 1829 Comment
  CAS-BOT-BC376470  Crepis pleurocarpa Louis C. Wheeler 1934-8-16 3168 Siskiyou Klamath National Forest. 2 mi. E. White Mt. 1920 Comment
  CAS-BOT-BC299729  Crocidium Douglas Horn 1938-4-17 35 Siskiyou East of Etna 1066 Comment
  HSC2180  Crocidium multicaule L. C. Wheeler 1935-5-5 3463 Siskiyou Greenhorn Creek 854 Comment
  HSC44935  Cryptantha affinis J. O. Sawyer 1978-6-19 3249 Siskiyou Marble Mtn. Wilderness Area, trail between Timothy Gulch and Harry Hall Gulch 1433 Comment
  SBBG25872  Cryptantha affinis D. Myrick 1966-8-12 1546 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  JEPS25598  Cryptantha torreyana Rimo Bacigalupi 1959-7-2 7230 Siskiyou near n base of Caribou Mtn. (headwaters of South Fork of the Salmon River, just s of low divide (Trinity Co. boundary) separating Coffee Creek drainage from that of Salmon River); South Fork of the Salmon River, Big Flat Campground 1508 Comment
  CAS-BOT-BC70479  Cryptogramma acrostichoides Doris K. Kildale 1929-7-20 8578 Siskiyou south east spur Preston Peak 1950 Comment
  RSA331956  Cryptogramma acrostichoides W. Wisura, Dave Kelly 1895-7-31 4080 Siskiyou Near Kangaroo Lake, Scotts Mtns, on granite rocks near campground. Comment
  SD76175  Cryptogramma cascadensis Helen V. Witham 1969-10-9 611 Siskiyou Panther Meadow, Mt. Shasta 2400 Comment
  CAS-BOT-BC80533  Cupressus bakeri Frank Callahan; John Erwin 1998-8-8 s.n. Siskiyou Goosenest Mtn., south of Ball Mtn./Little Shasta Rd. (uphill south of Smith's Sawmill [Historical]) 1676 Comment
  POM11470  Cupressus bakeri Geo D. Butler 1910-7-4 s.n. Siskiyou Goosenest Mt. 1220 Comment
  UC650667  Cupressus bakeri Oliver V. Matthews 1939-7-11 31 Siskiyou Seiad Grove 1432 Comment
  UC650670  Cupressus bakeri Oliver V. Matthews 1939-7-3 19 Siskiyou Sullivan Mine Grove Cook and Green Region 1066 Comment
  SEINET10531421 Image available Cupressus bakeri Carl B. Wolf, E. R. Johnson 1934-10-9 Wolf 2130 Siskiyou Siskiyou Mts. above W. Fork of Seiad Creek, 3/4 mi above forks of creek. Arid transition:- Yellow Pines, Douglas Firs. Sun. S slope in red rock/ 1160 Comment
  NY1293  Cupressus bakeri subsp. matthewsii C. B. Wolf 1934-10-9 6169 Siskiyou Siskiyou Mts., above W fork of Seiad Creek, 0.75 mi above forks of creek. 1158.2 Comment
  SEINET10899757  Cupressus bakeri subsp. matthewsii Carl B. Wolf 1944-10-29 Wolf 5051 Siskiyou North West side Goose Nest Mountain. About 1 mi due South of old Smith sawmill on Montague to Mt. Hebron Road. Arid Transition:- Incense cedar, yellow Pine. Sun. Slopes. Volcanic Rock. 1675 Comment
  UC61043  Cycladenia humilis var. humilis W. A. Setchell, C. C. Dobie 1902-7-16 Siskiyou Mt. Shasta, Sisson Comment
  JEPS39359  Cynoglossum grande Geo. D. Butler 1909-4-15 594 Siskiyou Humbug Comment
  CAS-BOT-BC114775  Cyperus acuminatus Louis C. Wheeler 1934-10-11 3317 Siskiyou Oak Knoll Ranger Station, Klamath River. 670 Comment
  POM211261  Cyperus bipartitus L. C. Wheeler 1934-8-31 3229 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Lund Ranch, W Fork Beaver Creek. 1066 Comment
  CAS-BOT-BC70716  Cystopteris fragilis Lewis S. Rose 1945-6-18 45105 Siskiyou Horse Creek & Klamath River 502 Comment
  HSC41043  Cystopteris fragilis J. O. Sawyer 1970-3-4 2062 Siskiyou N of Idlewild Campground 762 Comment
  UC922430  Cystopteris fragilis Annie M. Alexander and Louise Kellogg 1949-7-24 5865 Siskiyou trail to Bear Lake Paradise Lake; Marble Mts. 1920 Comment
  CAS-BOT-BC70717  Cystopteris fragilis Louis C. Wheeler 1934-7-5 2879 Siskiyou Klamath Forest, Deer Creek 1676 Comment
  POM120356  Cystopteris fragilis Geo D. Butler 1910-7-9 1694 Siskiyou Shackleford Creek. 1220 Comment
  RSA237513  Cystopteris fragilis Frederick W. Oettinger 1969-7-11 984 Siskiyou Near summit of Little Medicine Mountain (north of Hancock Lake). Salmon Mtns. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  RSA59499  Cystopteris fragilis E. K. Balls 1950-5-17 14714 Siskiyou By Schebchin Butte, Lava Beds National Monument 1402 Comment
  SEINET11696162  Danthonia californica Unknown 1948-8-3 s.n. Siskiyou Poker Flat, near Del Norte Co. border Comment
  UC1108540  Danthonia californica var. americana Ira L. Wiggins 1955-7-27 13551 Siskiyou Caribou Lake Salmon River-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC76233  Darlingtonia californica David D. Keck 1938-8-8 4866 Siskiyou At Trinity county line. Scott Mountain Divide, between Scott Mountain and Craggy Peak. 1676 Comment
  UCD119059  Darlingtonia californica Collector unknown Date unknown s.n. Siskiyou Mt. Shasta. Comment
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Nov 6 2019
  HSC64831  Darmera peltata J. P. Smith 1973-5-5 6387 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  RSA34341  Darmera peltata Carl B. Wolf 1927-8-27 1140 Siskiyou Mouth of Crawford Creek, Klamath River. Comment
  CAS-BOT-BC141838  Dasiphora fruticosa Alice Eastwood 1912-8-30 2025 Siskiyou Summit, Mount Eddy Comment
  RSA431673  Datisca glomerata Edwin Kline 1920-06 s.n. Siskiyou Siskiyou Mtns. Comment
  CDA5359  Daucus carota T. C. Fuller 1959-7-8 6042 Siskiyou 0.6 mile west of Ainsworth Corners. 0 Comment
  UC1334523  Delphinium andersonii G. A. L. Mehlquist and J. A. Jenkins 1940-5-30 18 Siskiyou sw-facing slope Sconchin Butte Comment
  CAS-BOT-BC9047  Delphinium decorum subsp. tracyi Alice Eastwood 1912-8-30 2001 Siskiyou Mount Eddy Comment
  JEPS74466  Delphinium glaucum W. J. Ferlatte 1966-8-18 404 Siskiyou 3 mi s Big Flat; Trinity Alps 1584 Comment
  SEINET5338041  Delphinium nudicaule G. Butler 1910-5-7 1299 Siskiyou in thickets, dry hills near Yreks. Comment
  HSC686  Delphinium nuttallianum William J. Ferlatte 1966-7-7 201 Siskiyou Caribou Basin 1982 Comment
  UC618686  Delphinium nuttallianum W. Bridge Cooke 1938-7-1 11156 Siskiyou near Wagon Camp (lower end of the Wagon Camp meadow along stream and road side); Mt. Shasta Comment
  HSC41686  Delphinium nuttallianum J. P. Smith 1976-5-21 8753 Siskiyou Along FS Rd. 40N08, 1 mi. from its junction with Hwy. 3, Klamath National Forest 1646 Comment
  JEPS75887  Deschampsia atropurpurea William J. Ferlatte 1971-9-18 1377 Siskiyou lower slope of Sawtooth Ridge; Trinity Alps, Caribou Basin 2194 Comment
  HSC30519  Deschampsia elongata Frederick W. Oettinger, R. W. Thorne 1969-8-5 1190 Siskiyou Marble Mountain Wilderness Area: NW side of English Peak. 1951 Comment
  POM369567  Descurainia incana subsp. viscosa M. B. Dunkle 1944-6-26 9042 Siskiyou Deer Creek Slope; Siskiyou Mtns. Beaver Creek. 1829 Comment
  HSC61206  Dicentra formosa Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  UCSB26447  Dicentra formosa Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  UCD114224  Dicentra formosa subsp. formosa John M. Tucker; D. V. Hemphill 1974-7-27 4309 Siskiyou Beside Haypress Creek, a short distance downstream from Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  HSC2243  Dichelostemma capitatum subsp. capitatum Geo. D. Butler 1910-4-17 1192 Siskiyou Near Yreka Comment
  HSC36778  Dichelostemma capitatum subsp. capitatum J. P. Smith 1974-5-25 7428 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  CAS-BOT-BC299764  Dieteria canescens var. canescens M. B. Dunkle 1945-8-2 9281 Siskiyou Kings Castle, Klamath Forest 2286 Comment
  CAS-BOT-BC290993  Dieteria canescens var. shastensis Elmer I. Applegate 1935-8-3 10011 Siskiyou Caldwell Butte, Lava Beds National Monument Comment
  CHSC63598  Dieteria canescens var. shastensis Vernon H. Oswald; Lowell Ahart 1994-8-10 6457 Siskiyou FS 41N01Y at Elk Flat, ca. 1 mi N of Pilgrim Creek Rd. (FS13), ca. 11 mi (air) NE of McCloud. 1243 Comment
  JEPS95372  Dieteria canescens var. shastensis Vernon H. Oswald and Lowell Ahart 1994-8-10 6457 Siskiyou ca 11 mi (air) ne of McCloud (FS 41N01Y at Elk Flat, ca 1 mi N of Pilgrim creek Rd (FS 13)) 1243 Comment
  CAS-BOT-BC153720  Diplacus nanus Elmer I. Applegate 1935-6-8 9412 Siskiyou Indian Well, Lava Beds National Monument Comment
  CAS-BOT-BC94401  Diplacus nanus R. C. Wenk 2005-7-15 197 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail 1645 Comment
  HSC68034  Dipsacus fullonum J. P. Smith, Steve Selva 1970-7-17 4433 Siskiyou Tyler Gulch Comment
  SDSU13054  Dipsacus sativus D. F. Howe 1962-8-5 3260 Siskiyou 56.8 miles east of Happy Camp on #96. 610 Comment
  HSC19279  Dodecatheon alpinum J. O. Sawyer 1968-6-18 248 Siskiyou Valley bottom of Blakes' Fork. 1707 Comment
  SEINET11973359  Dodecatheon alpinum H. P. Chandler 1901-1 1572 Siskiyou near Marble Mountain 1829 Comment
  HSC383  Dodecatheon jeffreyi William J. Ferlatte 1966-8-5 358 Siskiyou Caribou Mtn. 2561 Comment
  HSC4466  Dodecatheon jeffreyi William J. Ferlatte 1966-7-7 202 Siskiyou Caribou Basin 1982 Comment
  RSA238713  Dodecatheon jeffreyi Frederick W. Oettinger 1968-8-3 380 Siskiyou Base Camp Meadow at mid-trail between Diamond and Hancock Lakes. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  RSA211281  Dodecatheon jeffreyi William J. Ferlatte 1967-7-25 727 Siskiyou Cauribou Basin. Broad, open basin with scattered meadows and bare rock surfaces. Boggy meadow. 1982 Comment
  CHSC71477  Downingia bacigalupii Vernon H. Oswald; Lowell Ahart 1998-7-21 9363 Siskiyou Between Weed and Macdoel on Hwy. 97 0.9 mi southwest of Tennant Rd. In a roadside meadow. 1188 Comment
  JEPS100727  Downingia cuspidata Dean W. Taylor 1991-6-12 11897 Siskiyou Adobe Flat, ca. 4 miles N of Timbered Crater 1106 Comment
  JEPS15222  Downingia pulcherrima Rimo Bacigalupi with L. Constance and M. Hiroe 1956-6-9 5696 Siskiyou 1.5 mi wnw Weed (along U.S. Highway 99, southern reaches of the Shasta Valley); Shasta Valley 975 Comment
  JEPS94785  Downingia pulcherrima Vernon H. Oswald and Lowell Ahart 1998-7-21 9356 Siskiyou e of Grass Lake (ne of Weed and w of Bray on Old State Highway 0.8 mi e of Tennant Road); Old State Highway 1417 Comment
  HSC44974  Draba howellii J. O. Sawyer, E. Cope 1977-6-20 2974 Siskiyou Along W slopes of Bear Mtn. 1829 Comment
  UC165379  Draba pterosperma Geo. D. Butler 1908-8-8 33 Siskiyou Marble Valley Marble Valley (crevices of Marble rocks) Comment
  RSA0006623  Draba pterosperma Geo. D. Butler 1910-7-10 1716 Siskiyou Marble Mountain. 1677 Comment
  CAS-BOT-BC41411  Draba verna L. E. Smith 1915-3-15 s.n. Siskiyou Yreka. Comment
  CAS-BOT-BC401543  Drosera rotundifolia Wm. Bridge Cooke 1939-7-21 13725 Siskiyou Mount Shasta. In the Wagon Camp bog Comment
  HSC18936  Drymocallis glandulosa J. O. Sawyer 1969-7-18 1364 Siskiyou E of Waterdog Lake 2012 Comment
  UC154518  Drymocallis lactea var. austiniae Harley P. Chandler June, 1901 1697 Siskiyou near Marble Mountain; North Coast Ranges, near Marble Mountain 1828 Comment
  SEINET6691603  Drymocallis lactea var. austiniae G. D. Butler 1910-7-8 1658 Siskiyou Shackleford Creek 1372 Comment
  HSC69350  Drymocallis lactea var. lactea Maralyn A. Renner 1980-8-21 2560 Siskiyou Kidd Creek 2043 Comment
  UCD77958  Drymocallis pseudorupestris Robert E. Preston 2001-7-21 1716 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W ne 1/4 Section 22 2072 Comment
  CAS-BOT-BC158429  Drymocallis rhomboidea David D. Keck 1940-6-13 5178 Siskiyou 9 mi. S. of Macdoel, on U.S. 97 between Dorris and Weed 1465 Comment
  SEINET3871630  Dryopteris arguta J. P. Smith, Steve Selva 1970-6-14 3873 Siskiyou Road to Steinacher Creek near Somes Bar.; 0 Comment
  UCD70122  Dryopteris arguta D. Sanchez-Mata 1997-9-19 s.n. Siskiyou Klamath National Forest. Seiad Valley-Happy Camp. Jefferson State Scenic Byway close to Klamath River. 430 Comment
  CAS-BOT-BC197269  Echinochloa muricata var. microstachya Edward Lee 1934-8-10 1018 Siskiyou Klamath River, south bank between McKinney and Parkerhouse creeks 609 Comment
  SEINET7583464 Image available Eleocharis acicularis Frederick W. Oettinger 1969-8-15 1387 Siskiyou Salmon Mountains, vicinity of English Peak Marble Moutain Wilderness Area, inlet to Upper English Lake. 1768 Comment
  RSA238952  Eleocharis bella Frederick W. Oettinger 1969-8-24 1518 Siskiyou Inlet of upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CHSC111065  Eleocharis decumbens Barbara L. Wilson 2011-8-23 16886 Siskiyou Toad Lake 2117 Comment
  JEPS125883  Eleocharis engelmannii Dean W. Taylor 1996-7-27 15865 Siskiyou Klamath National Forest; Grass Lake, about 15 air miles NE of Weed. Comment
  HSC30716  Eleocharis macrostachya Frederick W. Oettinger 1968-9-5 716 Siskiyou Marble Mtn. Wilderness Area, inlet at SE side of Hancock Lake 1936 Comment
  CAS-BOT-BC451556  Elodea canadensis Wm. Bridge Cooke 1940-6-20 15164 Siskiyou In the Klamath River along the Pacific Highway below Hornbrook. Comment
  CAS-BOT-BC227131  Elymus X hansenii Geo. D. Butler 1910-5-4 1278 Siskiyou Near Yreka Comment
  POM359907  Elymus X hansenii M. B. Dunkle 1945-7-11 9234 Siskiyou Klamath National Forest; Marble Mts. 1829 Comment
  UCR143506  Elymus caput-medusae L. C. Wheeler 1935-6-4 3546 Siskiyou Grenada, Shasta Valley 793 Comment
  POM205432  Elymus elymoides Copeland 1903-9-6 3786 Siskiyou Mt. Eddy 1829 Comment
  UC1495300  Elymus elymoides subsp. elymoides Robert T. Clausen and Harold Trapido 1940-7-27 4971 Siskiyou w side of creek 5 mi nne summit of Mt. Shasta; So. Cascade Mts., Sacramento River Basin, Mountainhouse Cree 1981 Comment
  HSC26575  Elymus elymoides var. californicus J. P. Smith 1972-8-17 5748 Siskiyou Medicine Lake 2012 Comment
  HSC92552  Elymus elymoides var. californicus Jennifer Whipple 1976-7-8 1367 Siskiyou Ridgetop W of Dobkins Lake 2256 Comment
  HSC22445  Elymus elymoides var. elymoides J. O. Sawyer 1969-7-7 1076 Siskiyou S facing ridge above Big Duck Lake 2226 Comment
  HSC25414  Elymus elymoides var. elymoides J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5661 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  HSC67772  Elymus elymoides var. elymoides J. O. Sawyer, J. Cole 1980-7-20 3799 Siskiyou E side of Grouse Hill 2134 Comment
  HSC69018  Elymus elymoides var. elymoides Maralyn A. Renner 1980-7-24 2019 Siskiyou Lily Pad Lake 1768 Comment
  LA14818  Elymus glaucus Jason Swallen; 1939-7-28 13784 Siskiyou Mount Shasta, MacBride Springs 1523 Comment
  HSC45893  Elymus glaucus Laura Witherspoon 1978-8-10 74 Siskiyou Klamath National Forest. In cut block on Ball Mtn. Comment
  HSC31100  Elymus glaucus subsp. glaucus Frederick W. Oettinger 1968-9-1 638 Siskiyou Marble Mtn. Wilderness Area, SE side of Abbot's Lake 1723 Comment
  HSC8748  Elymus spicatus D. M. Thomson 1965-6-19 90 Siskiyou Lava Beds National Monument, Captain Jacks Stronghold Comment
  HSC91440  Elymus spicatus Jennifer Whipple 1977-8-4 2152 Siskiyou Wagon Creek drainage on the E face of Mt. Eddy 2439 Comment
  UCR47890  Epilobium angustifolium Steve Morgan 1987-7-28 s.n. Siskiyou Sierra Nevada Mtns, McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, south of Mt. Shasta 1768 Comment
  RSA183680  Epilobium angustifolium var. macrophyllum Gilbert Muth 1965-8-4 164 Siskiyou Near the Marble, Marble Valley, Marble Mountains Comment
  SEINET6635820 Image available Epilobium brachycarpum A. A. Heller 1916-8-24 12554 Siskiyou near Sisson 1090 Comment
  UC164268  Epilobium brachycarpum Geo. D. Butler 1910-7-3 1629 Siskiyou Goosenest foothills 1219 Comment
  HSC93865  Epilobium ciliatum subsp. ciliatum Jennifer Whipple 1977-8-6 2242 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  POM171587  Epilobium ciliatum subsp. ciliatum Doris K. Kildale 1928-8-18 6479 Siskiyou Near head of north fork of Salmon River at English Lake 1524 Comment
  UC164409  Epilobium ciliatum subsp. glandulosum Geo. D. Butler 1908-8-7 166 Siskiyou bank of lake at head of creek West Fork of Wooley Creek Comment
  UCD77622  Epilobium ciliatum subsp. glandulosum Robert E. Preston 2001-7-20 1696 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mountain, N of Hemlock Lake. 1755 Comment
  POM248137  Epilobium ciliatum subsp. glandulosum W. Bridge Cooke 1939-7-21 13701 Siskiyou Mouth of the Municipal spring above Howard, Mount Shasta 1280 Comment
  POM259609  Epilobium clavatum J. T. Howell 1939-8-8 15180 Siskiyou Marble Mountains: Black Mountain. Comment
  HSC96323  Epilobium glaberrimum subsp. fastigiatum Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 474 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  POM251081  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1938-7-15 11193 Siskiyou Bear Springs, Mt. Shasta 1524 Comment
  HSC81511  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1980-7-19 6202 Siskiyou Along USFS Rd. 40N17 1.0 mi. from junction with Callahan-Cecilville Rd. 1585 Comment
  HSC207  Epilobium hornemannii subsp. hornemannii William J. Ferlatte 1967-8-20 1057 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  RSA0004442  Epilobium jucundum Edward L. Greene 1876-08 s.n. Siskiyou Scott Valley. Comment
  RSA237387  Epilobium lactiflorum Frederick W. Oettinger 1968-8-4 388 Siskiyou Trail N of Crapo Peak ridge. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2195 Comment
  CAS-BOT-BC419731  Epilobium luteum Julie Kierstead Nelson; Martin Lenz; Rhonda Posey 2014-8-13 2014 -086 Siskiyou Headwaters of West Fork Parks Creek, adjacent to Road 41N29Y, 2 miles NE of China Mountain, eastern Klamath Ranges. 2194 Comment
  RSA237396  Epilobium minutum Frederick W. Oettinger 1969-8-12 1340 Siskiyou Below metal bridge, 1 mile down from Etna Summit on trail between Yellow Dog Creek and Abbotts Lake Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  POM32217  Epilobium siskiyouense E. B. Copeland 1903-9-7 3857 Siskiyou Mount Eddy Comment
  HSC34222  Equisetum arvense J. P. Smith 1974-5-25 7406 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC185239  Equisetum telmateia subsp. braunii Geo. D. Butler 1909-4-11 881 Siskiyou Shasta Springs Comment
  RSA603672  Eragrostis hypnoides L. C. Wheeler 1935-7-20 3675 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  CAS-BOT-BC204622  Eragrostis mexicana subsp. virescens Geo. D. Butler 1909-10-3 869 Siskiyou Near Yreka Comment
  CAS-BOT-BC204624  Eragrostis mexicana subsp. virescens Louis C. Wheeler 1934-10-6 3314 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  UCD77353  Eremogone kingii var. glabrescens Robert E. Preston 2001-6-23 1596 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W sw 1/4 of nw 1/4 Section 23 2042 Comment
  SJSU8729  Eriastrum wilcoxii G. R. Ostrander 1965-7-14 79 Siskiyou by Hwy 89, 10 mi E of McCloud 1036 Comment
  CAS-BOT-BC286705  Ericameria bloomeri Doris K. Kildale 1928-8-20 6614 Siskiyou Hancock Lookout, on trail to Marble Mt. 2151 Comment
  SD76180  Ericameria bloomeri Helen V. Witham 1969-10-9 597 Siskiyou McBride Springs Road, Mount Shasta 1500 Comment
  SD76187  Ericameria bloomeri Helen V. Witham 1969-10-4 543 Siskiyou Black Butte Summit, 1.5 miles southwest of Weed 1000 Comment
  UC630401  Ericameria bloomeri Annetta Carter 1939-8-21 1475 Siskiyou near crest of peak above se end of Taylor Lake (12 mi sw of Etna); Salmon Mountains 2286 Comment
  SEINET5709305 Image available Ericameria bloomeri J. Semple, B. Semple 1981-1 5712 Siskiyou Mt. Shasta, A 10.; Shasta 1524 Comment
  HSC75372  Ericameria greenei J. O. Sawyer, M. Mesler 1980-8-10 4028 Siskiyou S of Carmen Lake, ultramafics of Scott Mtn. 1829 Comment
  UC830817  Ericameria greenei Alice Eastwood 1912-8-29 2040 Siskiyou Mount Eddy Comment
  UCD35437  Ericameria nauseosa Beecher Crampton 1956-8-21 3842 Siskiyou Gravelly and stony bench above the Sacramento River, just below the junction of the middle with the south Fork. 1112 Comment
  HSC34657  Ericameria nauseosa var. speciosa Thomas W. Nelson, J. O. Sawyer 1974-10-29 1741 Siskiyou Hwy. 3, just S of Calaghan Comment
  CAS-BOT-BC293496  Erigeron aliceae David D. Keck 1938-8-6 4813 Siskiyou At Del Norte Co. line, Poker Flat, summit of Siskiyou Mts., 4 mi. S. of Oregon line. On road from Waldo to Happy Camp 1555 Comment
  CAS-BOT-BC293507  Erigeron aliceae C. L. Hitchcock; J. S. Martin 1939-7-6 5202 Siskiyou Siskiyou Mts., 2 miles within California boundary on Takilma-Happy Camp road 1554 Comment
  UCD131602  Erigeron aliceae J. M. Tucker; L. K. Mann, Sandra L. Holloway 1963-8-18 3748 Siskiyou Upper Canyon Creek, ca. 0.5 mile northeast of the Marble Valley Guard Station, Marble Mountain Wilderness Area. 1920 Comment
  RSA261540  Erigeron bloomeri J. M. Tucker, L. K. Mann 1963-8-18 3765 Siskiyou Saddle between Marble Mountain and SW ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area 2104 Comment
  CHSC57412  Erigeron bloomeri var. bloomeri L. P. Janeway 1984-6-22 874 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. 1645 Comment
  UC163866  Erigeron bloomeri var. bloomeri Geo. D. Butler 1910-5-16 1350 Siskiyou Yreka Comment
  UC609333  Erigeron bloomeri var. bloomeri Eleanor Burks Hart 1938-8-18 932 Siskiyou Boulder Peak 2529 Comment
  CAS-BOT-BC297105  Erigeron compositus Wm. Bridge Cooke; V. G. Cooke 1960-8-8 s.n. Siskiyou West side of Mud Creek Canyon, Mount Shasta 3048 Comment
  CHSC86671  Erigeron divergens Jenny Marr 1993-7-1 54 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC5512  Erigeron divergens M. S. Baker 1898-7-12 806 Siskiyou The Berch Fall River Valley Comment
  RSA17741  Erigeron elegantulus Elmer I. Applegate 1935-6-11 9494 Siskiyou Upper Ice Cave, south end of big lava flow, Lava Beds National Monument Comment
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  HSC19468  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-4 1860 Siskiyou Slope SW of Sugar Lake 2195 Comment
  HSC2404  Erigeron glacialis var. glacialis William J. Ferlatte 1966-8-17 400 Siskiyou Caribou Basin 1982 Comment
  JEPS84322  Erigeron glacialis var. glacialis L. R. Heckard with J. Hickman et al. 1986-7-17 6475 Siskiyou trail up Kangaroo Peak (s of Lily Pad Lake, ca 5 mi n of town of Seiad Valley, in a n-facing cirque) 1800 Comment
  HSC72381  Erigeron greenei J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8965 Siskiyou 1/2 mile N of Siskiyou County line on Hwy. 3 Comment
  SBBG21933  Erigeron inornatus D. Myrick 1964-7-25 971 Siskiyou Panther Meadows below Ski Bowl Lodge, Mt Shasta 2346 Comment
  CAS-BOT-BC295396  Erigeron inornatus A. A. Heller 1914-8-26 11717 Siskiyou Near Deetz Station near Black Butte 1158 Comment
  JEPS101305  Erigeron inornatus var. inornatus Dean W. Taylor 1999-8-12 17309 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley) 1371 Comment
  UC163922  Erigeron inornatus var. inornatus Geo. D. Butler 1908-7-20 327 Siskiyou near Yreka (head of Long Gulch); Long Gulch Comment
  SDSU3932  Erigeron lassenianus var. deficiens D. F. Howe 1965-8-8 4122 Siskiyou South side of Little Grayback, Klamath National Forest. 1463 Comment
  JEPS89687  Erigeron nivalis Dean Wm. Taylor, Rexford E. Palmer, Glenn L. Clifton 1987-8-9 9267 Siskiyou Medicine Lake Area, on s wall of Alcohol Crater, extreme northeastern portion of county Alcohol Crater; Medicine Lake Area, Alcohol Crater 2072 Comment
  CHSC84744  Erigeron petrophilus var. viscidulus L. P. Janeway 2003-8-9 7963 Siskiyou Klamath Ranges. Siskiyou Mountains between Cook and Green Pass and Red Butte. Serpentine slope overlooking uppermost fork of Seiad Creek. 1698 Comment
  HSC41051  Erigeron petrophilus var. viscidulus J. O. Sawyer 1969-7-9 1108 Siskiyou Dry slope above Little Duck Lake. Grandiorite 2012 Comment
  CAS-BOT-BC295813  Erigeron petrophilus var. viscidulus A. A. Heller 1918-7-16 13032 Siskiyou Mt. Eddy, west of Sisson 2133 Comment
  CAS-BOT-BC248780  Eriogonum baileyi var. baileyi W. B. Cooke; V. G. Cooke 1966-7-16 37216 Siskiyou Above Bolam Station, Mt. Shasta 1524 Comment
  CAS-BOT-BC250067  Eriogonum compositum var. compositum E. K. Balls 1949-7-9 13932 Siskiyou 8.3 miles from Etna on road to Sawyer's Bar 1005 Comment
  JEPS82707  Eriogonum compositum var. compositum Wayne Roderick 1984-6-6 Siskiyou 1 mi n on Highway 3 Callahan Comment
  SEINET3159900  Eriogonum compositum var. compositum G. D. Butler 1910-5-21 1378 Siskiyou Klamath hills Comment
  UC637153  Eriogonum compositum var. compositum Edward Lee 1934-8-15 1134 Siskiyou summit of road from Happy Camp to Waldo (Oregon); Klamath National Forest, Indian Creek watershed 1615 Comment
  HSC30509  Eriogonum compositum var. compositum Frederick W. Oettinger 1969-8-6 1254 Siskiyou Marble Mtns. Wilderness Area, New York Flumes between Pine Lake and Tom's Lake 1860 Comment
  CAS-BOT-BC246488  Eriogonum diclinum H. A. Thomas; J. H. Thomas 1954-7-24 4508 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  RSA279588  Eriogonum diclinum James L. Reveal 1975-8-15 3956 Siskiyou Sisikiyou Mountains; Klamathe Nat'l Forest; along the Dry Lake Lookout Road ( FSR 40S01) 0.5 mile west of Dry Lake Lookout near the Buckhorn Trail. 2043 Comment
  SEINET5329119  Eriogonum diclinum J. L. Reveal, Mark L. Reveal 1975-8-15 3956 Siskiyou Siskiyou Mountains, Klamath National Forest, along the Dry Lake Lookout Road (Forest Service Road 40801), 0.5 mi west of Dry Lake Lookout near the Buckthorn Trail, in open places on the upper slopes 2042 Comment
  RSA165451  Eriogonum douglasii Clare B. Hardham 1961-6-30 8033 Siskiyou Near Mud Springs. 1829 Comment
  JEPS84297  Eriogonum douglasii var. douglasii L. R. Heckard with J. Hickman et al. 1986-7-17 6544 Siskiyou ca 1 mi ne Buckhorn 2100 Comment
  CHSC1318  Eriogonum douglasii var. meridionale V. Holt 1943-8-7 Siskiyou Marble Mountains. 2164 Comment
  SD62051  Eriogonum elatum var. elatum Darley F. Howe 1965-8-8 4124 Siskiyou South side Little Gray Back, Klamath Netional Forest 1524 Comment
  CAS-BOT-BC33527  Eriogonum elatum var. villosum George Dexter Butler 1910-6-26 1606 Siskiyou Near Yreka Comment
  UC1035866  Eriogonum elatum var. villosum Annie M. Alexander and Louise Kellogg 1948-9-5 5582 Siskiyou South Fork Salmon River at Matthews Creek; South Fork Salmon River, Matthews Creek Comment
  CAS-BOT-BC261216  Eriogonum hirtellum James L. Reveal; Darin S. Reveal 1978-8-9 4810 a Siskiyou Along the dirt road from near Happy Camp to Baldy Mountain Lookout (USFS #17N11), 0.5 mile south of the junction of 17N23 near the head of Doolittle Creek 1280 Comment
  RSA279582  Eriogonum luteolum James L. Reveal, Mark L. Reveal 1975-8-15 3949 Siskiyou Siskiyou Mountains, Klamath National Forest, along the Daggett Creek Road on the west slope of Cedar Cove, about 0.5 mile east of the Forest Service Road 46N52, about 2.2 miles north of California Highway 96 Comment
  JEPS94393  Eriogonum marifolium Vernon Oswald and Lowell Ahart 1997-7-28 8782 Siskiyou Forest Route 56 (42N56) 3.7 mi e of Forest Route 49 (edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave); Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave 1755 Comment
  RSA19311  Eriogonum marifolium L. S. Rose 1937-7-25 37588 Siskiyou South slope of Mt. Shasta. 1768 Comment
  CAS-BOT-BC263179  Eriogonum marifolium var. cupulatum Robert F. Thorne; Fred Oettinger 1969-8-10 38985 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta 2438 Comment
  UC54705  Eriogonum nudum var. nudum T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  HSC19486  Eriogonum nudum var. nudum J. O. Sawyer 1969-7-24 1502 Siskiyou Steep slopes of Sugar Creek drainage 1890 Comment
  HSC23546  Eriogonum nudum var. nudum J. O. Sawyer 1969-7-18 1383 Siskiyou Ridge above S Russian Creek 1921 Comment
  HSC27243  Eriogonum nudum var. pubiflorum J. P. Smith, J. O. Sawyer 1971-9-18 4817 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  JEPS85495  Eriogonum nudum var. pubiflorum L. R. Heckard and T. I. Chuang 1968-7-2 1969 Siskiyou 6 mi n along US Highway 97 Weed 1219 Comment
  POM165266  Eriogonum nudum var. pubiflorum E. B. Copeland 1903-7-3 3526 Siskiyou Klamathon. Comment
  UC1215080  Eriogonum pyrolifolium Paul C. Hutchison 1962-8-2 928 Siskiyou between top of ski lift and Panther Meadow; Mt. Shasta 2438 Comment
  UC618620  Eriogonum pyrolifolium W. Bridge Cooke 1938-8-18 11495 Siskiyou Horse Camp Slopes Mount Shasta, Horse Camp Slopes Comment
  CAS-BOT-BC267707  Eriogonum roseum Louis C. Wheeler 1934-9-19 3282 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  CAS-BOT-BC268576  Eriogonum siskiyouense John Thomas Howell 1937-7-29 13628 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  POM105606  Eriogonum sphaerocephalum Geo. D. Butler 1910-6-21 1597 Siskiyou Dry hill. Yreka. Comment
  UC1442635  Eriogonum sphaerocephalum var. halimioides William J. Ferlatte 1978-5-28 1905 Siskiyou hills ne Yreka (0.4 mi e of Interstate 5, 0.2 mi n of Hwy. 3 on way to Montague) 830 Comment
  UC1735886  Eriogonum strictum var. anserinum Dean W. Taylor 1987-8-7 9255 Siskiyou Caldwell Butte, Lava Beds National Monument 1499 Comment
  CAS-BOT-BC263398  Eriogonum strictum var. proliferum Alice Eastwood; John Thomas Howell 1937-6-25 5025 Siskiyou Callahan Comment
  JEPS84304  Eriogonum ternatum L. R. Heckard with J. Hickman et al. 1986-7-17 6476 Siskiyou s Lily Pad Lake (trail up Kangaroo Peak; ca. 5 mi n of the town of Seiad Valley); Kangaroo Peak 1800 Comment
  CAS-BOT-BC267956  Eriogonum umbellatum Maralyn A. Renner 1980-8-21 2603 Siskiyou Klamath National Forest. Southwest of trail from Leroy Mine to Sunrise Basin, near ridge 2286 Comment
  CAS-BOT-BC94549  Eriogonum umbellatum R. C. Wenk 2006-9-2 545 Siskiyou trail to Caribou Lakes from Big Flat Meadow. Dry granite talus area by side of trail, above Big Conrad Gulch 1950 Comment
  SEINET244751 Image available Eriogonum umbellatum James L. Reveal 2001-7-19 8348 Siskiyou Scott Valley, along South Kidder Creek Road 0.5 mile west-southwest of California Highway 3, about 6.1 air miles southwest of Fort Jones and 5.7 air miles north of Etna. 869 Comment
  CAS-BOT-BC267933  Eriogonum umbellatum A. A. Heller 1938-7-13 15271 Siskiyou About a mile south of Bray Comment
  HSC61798  Eriogonum umbellatum Ruby Van Deventer 9 Aug [year missing] Siskiyou Poker Flat 1585 Comment
  JEPS83872  Eriogonum umbellatum var. argus Wayne Roderick July 1976 Siskiyou along trail to Copper Butte (vicinity Cook and Green Pass); Siskiyou Mts. 1767 Comment
  JEPS93921  Eriogonum umbellatum var. argus Vernon H. Oswald and Lowell Ahart 1998-8-3 9406 Siskiyou 11.5 mi w of Gazelle ((USFS 41N03) 0.2 mi e of its junction with Gazelle-Callahan Road); USFS 41N03 1524 Comment
  UC718151  Eriogonum umbellatum var. argus Carl B. Wolf 1934-7-5 5966 Siskiyou 3.6 mi on road to Horse Creek Dry Lake Lookout; Siskiyou Mts. 1981 Comment
  RSA420580  Eriogonum umbellatum var. goodmanii Christopher Davidson 1975-6-5 2658 Siskiyou just above gate on special service rd branching SE off rd from Gazelle to Callahan 9.3 mi. W of Gazelle. 1471 Comment
  JEPS110482  Eriogonum umbellatum var. modocense Robert E. Preston 2001-7-21 1708 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 2026 Comment
  JEPS84205  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
  HSC71083  Eriogonum umbellatum var. polyanthum M. A. Baker 1980-6-20 2207 Siskiyou Near Bald Mtn. 1036 Comment
  POM165270  Eriogonum umbellatum var. polyanthum W. A. Setchell, C. Dobie 1902-07 4113 Siskiyou Session Mt. Shasta. Comment
  SD23789  Eriogonum umbellatum var. polyanthum Wm. Bridge Cooke 1938-8-24 11581 Siskiyou Mt. Shasta 2133 Comment
  CAS-BOT-BC262383  Eriogonum vimineum L. R. Abrams 1927-9-11 12144 Siskiyou Fork of Klamath and Shasta Rivers Comment
  CAS-BOT-BC376589  Eriophorum crinigerum Andrew Townesmith; Karen M. Meyer 2007-8-1 883 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway) 1983 Comment
  CAS-BOT-BC301115  Eriophyllum lanatum var. achilleoides A. A. Heller 1915-7-16 12101 a Siskiyou North side of Mt. Eddy 1371 Comment
  JEPS34501  Eriophyllum lanatum var. achilleoides W. L. Jepson 1940-6-23 20002 Siskiyou n of Mt. Shasta; Andesite station 975 Comment
  JEPS34485  Eriophyllum lanatum var. grandiflorum Willis L. Jepson Jul 24 1894-Aug 10 1894 14571 Siskiyou Shasta Springs Upper Sacramento region, Shasta Springs Comment
  POM358038  Eriophyllum lanatum var. grandiflorum B. C. Templeton 1957-6-24 s.n. Siskiyou Near top of Gazelle Mt., Scott Mts. 1463 Comment
  HSC22490  Eriophyllum lanatum var. integrifolium J. O. Sawyer 1969-7-9 1106 Siskiyou Between Horse Range and Little Duck Lake 2354 Comment
  HSC5601  Eriophyllum lanatum var. integrifolium R. C. Wunner 1965-7-1 332 Siskiyou California Lava Beds National Monument; 2/3 way up Gillem's Bluff above NW Ranger Station 1280 Comment
  CAS-BOT-BC301720  Eriophyllum lanatum var. lanceolatum D. E. Breedlove 1962-6-10 3314 Siskiyou Along Indian Creek Road, 2.3 miles northwest of Happy Camp; Siskiyou Mountains 365 Comment
  JEPS34742  Eriophyllum lanatum var. lanceolatum Geo. D. Butler 1908-7-20 298 Siskiyou head of Long Gulch (near Yreka) Comment
  UC1299257  Eriophyllum lanatum var. lanceolatum Freed W. Hoffman 1950-7-11 3535 Siskiyou 8.4 mi n Klamath River (on Cedar Camp road, w Siskiyou County) 914 Comment
  UC1559628  Eryngium mathiasiae Beth Corbin 1989-8-8 529 Siskiyou ca. 15 air miles n. Fall River Mills (Adobe Flat); Lassen Nat'l Forest, Adobe Flat 1097 Comment
  RSA22176  Erysimum capitatum J. T. Howell 1937-7-29 13636 Siskiyou Scott Mountain between Trinity and Siskiyou counties Comment
  HSC97704  Erysimum capitatum var. capitatum Thomas W. Nelson, Jane Nelson 2006-7-1 9451 Siskiyou Along USFS Rd. 4319, Military Pass Rd., The Whaleback 1392 Comment
  RSA15591  Erysimum capitatum var. capitatum C. B. Wolf 1927-8-27 1128 Siskiyou On the Klamath River. 7 miles below Happy Camp. Comment
  JEPS61854  Erythronium grandiflorum W. L. Jepson 1907-7-5 2826 Siskiyou Marble Mt. Comment
  CAS-BOT-BC505229  Erythronium grandiflorum Gilbert Muth 1966-7-8 350 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC18984  Erythronium grandiflorum subsp. grandiflorum G. L. Clifton 1979-7-1 6175 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  HSC27347  Erythronium grandiflorum subsp. grandiflorum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5699 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC58943  Erythronium grandiflorum subsp. grandiflorum Marvin Butler 1971-7-6 28 Siskiyou Near El Capitan 1524 Comment
  CAS-BOT-BC133300  Erythronium hendersonii Elmer I. Applegate 1932-4-16 7063 Siskiyou Klamath River between Hamburg and Seiad Valley Comment
  CAS-BOT-BC403675  Eschscholzia californica Doris K. Kildale 1929-5-26 9197 Siskiyou Salmon River at Hawkins Bar 609 Comment
  HSC68361  Eschscholzia californica J. P. Smith, Steve Selva 1970-6-16 4053 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  UC165317  Eschscholzia californica Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka Comment
  POM125700  Eschscholzia californica var. crocea Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka. Comment
  HSC61823  Eucephalus glabratus Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC310454  Eucephalus ledophyllus var. covillei Doris K. Kildale 1928-8-19 6502 Siskiyou English Lake, head of north fork of Salmon River Comment
  CAS-BOT-BC310478  Eucephalus tomentellus A. A. Heller 1915-8-26 12242 Siskiyou Slope north side of Mt. Eddy 1767 Comment
  JEPS51868  Euphorbia crenulata Geo. D. Butler 1909-4-28 909 Siskiyou Cherry Creek Comment
  UC455408  Euphorbia crenulata I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  RSA120927  Euphorbia crenulata Milo S. Baker, Douglas Barbe, H. K. Wagnon 1957-6-15 13104 Siskiyou Just south of Weed. Comment
  POM210925  Euphorbia lathyris L. C. Wheeler 1934-11-4 3358 Siskiyou Marble Mountains: Scott Bar, Scott River. (Mt Diablo Mer.) 518 Comment
  CHSC268  Eurybia integrifolia V. Holt 1943-8-14 Siskiyou Marble Mountains. 1219 Comment
  SEINET8687815 Image available Eurybia radulina G. D. Butler 1910-7-20 1729 Siskiyou Goosenest foothills 1524 Comment
  JEPS81790  Eurybia radulina Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6828 Siskiyou meadow just below and n of Scott Mountain road summit 1615 Comment
  HSC2274  Euthamia occidentalis Geo. D. Butler 1910-8-27 1859 Siskiyou Comment
  HSC71192  Festuca californica M. A. Baker 1980-6-20 2225 Siskiyou Near Bald Mtn. 1036 Comment
  CAS-BOT-BC278721  Festuca idahoensis Wm. Bridge Cooke 1938-7-15 11217 Siskiyou Mount Shasta. Above Bear Spring Comment
  CAS-BOT-BC278733  Festuca idahoensis Louis C. Wheeler 1934-6-1 2658 Siskiyou Klamath National Forest, N. Hungry Creek 1219 Comment
  HSC101839  Festuca microstachys J. P. Smith, J. O. Sawyer, R. J. Cole 2011-5-22 13174 Siskiyou Along road from Cecilville to Forks of Salmon 743 Comment
  CAS-BOT-BC278872  Festuca occidentalis A. A. Heller 1915-7-18 12123 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC278874  Festuca occidentalis John Thomas Howell 1937-7-22 13259 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  JEPS57228  Festuca roemeri L. R. Heckard 1967-8-13 1711 Siskiyou e flank Mt. Eddy 2727 Comment
  CHSC61575  Festuca rubra L. P. Janeway 1983-7-7 390 Siskiyou Siskiyou Mountains; southeast-sloping ridge just northwest behind West Branch Guard Station. 701 Comment
  HSC65340  Festuca rubra J. P. Smith 1973-5-5 6443 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  UC1024639  Festuca rubra Leo Whitney 1934-6-29 2223 Siskiyou near Tennant; Antelope Creek 1463 Comment
  RSA239111  Festuca subulata Frederick W. Oettinger 1968-9-6 726 Siskiyou Southeast of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UCD66440  Festuca subulata A. A. Heller 1916-7-20 12466 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy in openings in the forest. 1188 Comment
  CAS-BOT-BC282570  Festuca viridula Gilbert Muth 1969-8-6 1178 Siskiyou Boulder Peak 2529 Comment
  RSA215653  Festuca viridula Gilbert Muth 1969-8-7 1261 Siskiyou On east side of Boulder Peak Ridge. 2470 Comment
  CAS-BOT-BC437073  Fragaria vesca subsp. bracteata A. A. Heller 1916-6-20 12406 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC457570  Fragaria vesca subsp. californica Doris K. Kildale 1929-4-27 7555 Siskiyou Cecilville Comment
  CAS-BOT-BC60015  Frangula purshiana Doris K. Kildale 1928-8-18 6435 Siskiyou Head of N. Fork of salmon River at Finley's Upper Camp. On trail to Marble Mt. Comment
  CHSC69831  Frangula rubra J. P. Smith; J. O. Sawyer, Maralyn O'Meara 1972-7-3 5723 Siskiyou East slope of Kangaroo Mtn. above Toehead Lake. 1889 Comment
  CAS-BOT-BC130176  Fritillaria affinis Mrs. A. E. Stonehouse 1917-4-25 s.n. Siskiyou Hilt Comment
  UC165731  Fritillaria atropurpurea Geo. D. Butler 1910-5-1 1261 Siskiyou Humbug Mountain Comment
  UC429285  Fritillaria atropurpurea Annie M. Alexander and L. Kellogg 1911-6-17 151 Siskiyou Jackson Lake Comment
  CAS-BOT-BC502845  Fritillaria atropurpurea Ira L. Wiggins 1950-5-28 12390 Siskiyou Hillside .3 mile west of Carmen Lake 1706 Comment
  CAS-BOT-BC505272  Fritillaria atropurpurea John Thomas Howell 1939-8-2 14896 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC60669  Fritillaria glauca Ruby Van Deventer Siskiyou Bear valley Comment
  UC164479  Fritillaria pudica Geo. D. Butler 1910-3-11 1121 Siskiyou Yreka hills 914 Comment
  CAS-BOT-BC506213  Fritillaria pudica Ira L. Wiggins 1950-5-28 12391 Siskiyou .3 mile west of Carmen Lake Comment
  HSC44914  Fritillaria recurva J. P. Smith 1973-5-5 6471 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC68357  Galium aparine J. P. Smith 1973-5-5 6503 Siskiyou Along Cook and Green Pass Rd. Comment
  UCD77234  Galium bifolium Robert E. Preston 2001-6-30 1644 Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 1722 Comment
  RSA610764  Galium bifolium Louis C. Wheeler 1935-6-27 3597 Siskiyou Marble Mountains: Etna Creek. 1524 Comment
  UCR47924  Galium californicum D. L. Koutnik, Martha Townsend 1979-9-10 s.n. Siskiyou SW of Etna, near Etna Bridge 1067 Comment
  SD211695  Galium glabrescens Barbara Ertter 1990-7-14 9329 Siskiyou Wagon Creek on east side of Mt. Eddy, ca. 4.0 airmiles west of Mt. Shasta City. 1890 Comment
  CAS-BOT-BC210238  Galium grayanum var. grayanum Dana York 2011-8-12 3039 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  HSC61214  Galium muricatum Al Hobart 1968-8-15 Siskiyou El Capitan Comment
  SBBG18747  Galium serpenticum C. B. Hardham 1961-7-3 8115 Siskiyou Scott River, SW of Calahan Comment
  HSC81550  Galium serpenticum subsp. scotticum Thomas W. Nelson, Jane P. Nelson 1980-7-21 6158 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  UC139340  Galium triflorum Copeland 1903-9-14 3933 Siskiyou Sisson Comment
  RSA238875  Galium triflorum Frederick W. Oettinger 1968-8-7 436 Siskiyou Along the trail on the E side of Hancock Lake. Salmon Mtns. The High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1936 Comment
  CAS-BOT-BC182159  Garrya fremontii Louis C. Wheeler 1934-6-22 2764 Siskiyou Cottonwood Cr. Klamath National Forest 1066 Comment
  HSC36708  Garrya fremontii Brent Whitely 1975-7-5 141 Siskiyou 213 Comment
  UC166165  Garrya fremontii Geo. D. Butler 1910-3-10 1125 Siskiyou near Yreka Comment
  RSA467221  Gaultheria humifusa L. C. Wheeler 1934-8-16 3164 Siskiyou Johnson Dairy, Siskiyou Mts. 1646 Comment
  RSA238356  Gaultheria ovatifolia Frederick W. Oettinger 1968-9-8 785 Siskiyou Along the e. shore of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  HSC36727  Gaultheria shallon Brent Whiteley 1975-7-8 152 Siskiyou 610 Comment
  UCD103637  Gayophytum diffusum subsp. parviflorum John M. Tucker 1974-7-28 4311 Siskiyou Adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  HSC78319  Gayophytum diffusum subsp. parviflorum L. P. Janeway 1983-8-16 538 Siskiyou At Poker Flat, road edge at upper portion of meadow 1524 Comment
  JEPS27525  Gayophytum heterozygum W. L. Jepson 1914-8-9 5744 Siskiyou McCloud 1036 Comment
  RSA12606  Gayophytum heterozygum Carl B. Wolf 1934-7-6 5979 Siskiyou 1/4 mile east of Mt. Shasta City, southwest slope of Mt. Shasta 1098 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
  UCD169045  Gentiana newberryi B. Crampton 1956-8-21 3819 Siskiyou South slope of Gumboot Lake, headwater of the south Fork of the Sacramento River. 1920 Comment
  SEINET8586417  Gentiana newberryi M. J. Williams 1967-9-2 s.n. Siskiyou Mount Eddy, Deadfall Lake Trail. 1951 Comment
  UC1584288  Gentiana newberryi var. newberryi J. Kierstead, R. Bittman, and M. Meyers 1989-8-11 89 -71 Siskiyou s side Forest Service Rd. 26 (Gumboot Creek); Shasta/Trinity National Forest, Mt. Shasta Ranger Dist. 1767 Comment
  UC642518  Gentianopsis simplex W. Bridge Cooke 1939-7-21 13726 Siskiyou Mt. Shasta, Wagon Camp Comment
  CHSC675  Geranium oreganum 1936-6-23 Siskiyou Mt. Shasta City. 1066 Comment
  RSA86642  Geum triflorum E. E. Stanford 1930-8-14 2087 Siskiyou Below summit of Sonora Pass. 2896 Comment
  HSC68529  Gilia capitata Maralyn A. Renner 1980-6-24 1048 Siskiyou 1/2 mi. E of Cook and Green Pass 1555 Comment
  HSC223  Gilia capitata William J. Ferlatte 1966-8-17 403 Siskiyou NW side of Caribou Mtn. 1829 Comment
  JEPS69513  Gilia capitata subsp. capitata Geo. D. Butler 1908-8-6 32 Siskiyou trail above Marble Valley (western Siskiyou Co.); trail above Marble Valley 1828 Comment
  JEPS82471  Gilia capitata subsp. capitata Gilbert Muth 1966-7-8 371 Siskiyou Marble Valley Meadow , Marble Valley Meadow (Marble Mt. Wilderness Area) 1792 Comment
  UC1161520  Glyceria elata J. M. Tucker 1963-8-19 3774 Siskiyou Canyon Creek Marble Mountain Wilderness Area (headwaters of Canyon Creek) 1950 Comment
  CAS-BOT-BC302670  Gnaphalium palustre Doris K. Kildale 1928-7-25 5896 Siskiyou Klamath River at Mack's Creek near Hamburg Comment
  JEPS34011  Gnaphalium palustre Willis L. Jepson Jul 24 1894-Aug 10 1894 14748 Siskiyou Sisson Upper Sacramento Region, Sisson 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
  HSC19395  Goodyera oblongifolia J. O. Sawyer 1968-6-18 195 Siskiyou Above S Russian Creek on W side. 1463 Comment
  UCR142985  Gratiola ebracteata L. C. Wheeler 1935-6-13 3570 Siskiyou Klamath Ranges region, Greenview, Scott Valley 884 Comment
  SEINET6336347  Habenaria leucostachys W. B. C. 1937-1 Siskiyou Comment
  JEPS55564  Hackelia californica W. L. Jepson 1940-6-30 20065 Siskiyou 6 mi e of McCloud (Fowlers Camp); McCloud River 944 Comment
  JEPS25633  Hackelia micrantha Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7272 Siskiyou Poker Flat 1536 Comment
  CHSC31061  Hackelia mundula M. S. Taylor 1980-7-8 3108 Siskiyou On trail, e side of Castle Lake to Little Castle Lake. 1767 Comment
  HSC61168  Hastingsia alba Al Hobart 1967-8-8 Siskiyou El Capitan 2073 Comment
  SBBG111489  Hastingsia alba J. M. Tucker, L. K. Mann 1963-7-7 3722 Siskiyou ca. 0.25 mi N of Paradise Lake, Marble Mtn Wilderness 1981 Comment
  UC30106  Hastingsia alba Harley P. Chandler June 1901 1616 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  CAS-BOT-BC504612  Hastingsia alba W. R. Dudley 1899-8-13 s.n. Siskiyou Nabar Meadows, near McCloud Comment
  CAS-BOT-BC504614  Hastingsia alba A. A. Heller 1919-6-25 13268 Siskiyou Compton's prairie, north base of Mt. Eddy 1158 Comment
  RSA299411  Hastingsia alba W. L. Jepson 1914-8-13 5789 Siskiyou Sisson. 1098 Comment
  SEINET12044228  Hastingsia alba W. L. Jepson 1894-1 s.n. Siskiyou upper Sacramento, Sisson [Mount Shasta] Comment
  HSC19549  Hastingsia serpentinicola J. O. Sawyer 1969-7-24 1505 Siskiyou SE facing slope W of Sugar Lake 1905 Comment
  HSC67895  Hazardia whitneyi var. discoidea J. P. Smith, J. O. Sawyer 1973-8-14 7322 Siskiyou West of Cliff Lake 2012 Comment
  UC165252  Helenium autumnale Geo. D. Butler 1908-8-30 319 Siskiyou near Fort Jones; Scott River Comment
  HSC29088  Helenium bigelovii Frederick W. Oettinger 1968-8-12 492 Siskiyou Salmon Mountains, Tobacco Lake Trail 1890 Comment
  HSC82363  Helenium bigelovii Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4514 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  HSC92210  Helenium bigelovii Jennifer Whipple 1976-7-24 1568 Siskiyou SW of Dobkins Lake along the drainage into the lake 2073 Comment
  JEPS35016  Helenium bigelovii Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou stage road n Sisson; Region of the Upper Sacramento, Sisson Comment
  SD76158  Helenium bigelovii Helen V. Witham 1969-10-9 557 Siskiyou Scott Mountains: Kangaroo Lake, edge of bog. 2100 Comment
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Jun 3 2008
  CAS-BOT-BC305470  Helianthus annuus W. B. Cooke; V. G. Cooke 1974-8-20 49243 Siskiyou Memorial Highway, Mt. Shasta Comment
  CAS-BOT-BC305569  Helianthus bolanderi Louis C. Wheeler 1934-10-6 3311 Siskiyou Shasta Valley 2 mi. SE Yreka 853 Comment
  CAS-BOT-BC305579  Helianthus bolanderi A. A. Heller 1916-9-1 12640 Siskiyou Near Yreka Comment
  HSC85688  Helianthus bolanderi J. P. Smith 1980-8-24 10350 Siskiyou Klamath National Forest; SR 3, 2.4 mi. from Scott Mtn. summit 1341 Comment
  UCD119422  Heliotropium curassavicum var. oculatum Verne Grant; Irving Schneider 1947-8-26 8303 Siskiyou By Interstate Highway, Lower Klamath Lake. Comment
  UC1190166  Heracleum lanatum Ira L. Wiggins 1955-7-26 13512 Siskiyou just above mouth of Blind Horse creek S. Fork Salmon R. 886 Comment
  RSA612323  Herniaria hirsuta subsp. cinerea L. C. Wheeler 1935-5-1 3449 Siskiyou Yreka Creek. Siskiyou Mountains. (Mt. Diablo Mer.) 854 Comment
  SD11874  Hesperocyparis macnabiana Carl B. Wolf 1930-10-19 Siskiyou Modoc Lava Beds, 1 mile east of Timbered Butte on old road from ? Hill Farm at Dana to Little Hot Spring Valley 1220 Comment
  JEPS74414  Heterocodon rariflorum W. B. and V. G. Cooke 1974-8-21 49262 Siskiyou Howard; Mt. Shasta Comment
  RSA608378  Heterotheca oregona L. C. Wheeler 1934-9-15 3265 Siskiyou Walker, Klamath River, Siskiyou Mts. (Mt. Diablo Mer.) 518 Comment
  CAS-BOT-BC312297  Heterotheca villosa var. minor Gilbert Muth 1965-8-4 s.n. Siskiyou Near the marble, Marble Valley Comment
  CHSC99585  Heuchera merriamii L. P. Janeway 2008-7-22 9447 Siskiyou Klamath Ranges. Between the Trinity Mountains, Castle Crags, and The Eddys; narrow ridge between Hart Lake and Little Castle Lake. Growing in rocky cracks in very steep north-facing granite outcrop. 1871 Comment
  JEPS104828  Heuchera merriamii Dean W. Taylor 1996-7-11 15778 Siskiyou Scott Mountains; West Park Lakes (about 15 air miles west of Weed); Shasta-Trinity National Forest 2194 Comment
  CAS-BOT-BC420701  Heuchera merriamii Louis C. Wheeler 1934-8-2 3012 Siskiyou Klamath, MDM Jaynes Canyon 2042 Comment
  JEPS80536  Heuchera merriamii Gilbert Muth 1965-8-17 308 Siskiyou lower creek on trail to Black Mountain; Marble Mountain Wilderness Area 1828 Comment
  RSA0063196  Heuchera merriamii John T. Howell 1937-7-24 13400 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  RSA0066252  Heuchera merriamii A. E. Culbertson 1943-7-8 14 Siskiyou Castle Lake, in a N facing cirque with an abrupt 1000 backwall. 14 miles SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mtns. 2000 above Sacramento River within 10 air miles of its headwaters to the W. 1656 Comment
  HSC42969  Heuchera micrantha J. O. Sawyer, Ken Stillman 1976-5-29 2747 Siskiyou Along Specimen Creek 1433 Comment
  CAS-BOT-BC420934  Heuchera micrantha var. diversifolia H. E. Brown 1897-6-1 310 Siskiyou Near Sisson 1083 Comment
  HSC61159  Heuchera rubescens Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  HSC92732  Hieracium albiflorum Jennifer Whipple 1976-7-23 1513 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  JEPS36597  Hieracium albiflorum Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson Region of the Upper Sacramento Comment
  CAS-BOT-BC319691  Hieracium albiflorum P. A. Munz 1965-8-11 s.n. Siskiyou Upper meadows, Marble Valley Comment
  OBI53779  Hieracium albiflorum David J. Keil, Kathleen Keil 1992-7-19 23462 Siskiyou Klamath NF. 6.5 mi NW of Sawyers Bar on Sawyers Bar Rd Comment
  RSA237433  Hieracium albiflorum Frederick W. Oettinger, R. F. Thorne 1969-8-6 1258 Siskiyou Tobacco Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  SD88379  Hieracium albiflorum Darley F. Howe 1972-7-6 Siskiyou 4.4 miles south of Oregon State line on road to Happy Camp. Comment
  RSA233675  Hieracium gracile R. F. Thorne, Frederick W. Oettinger 1969-8-10 38975 Siskiyou S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  RSA184623  Hieracium greenei Clare B. Hardham 1965-8-20 1304 Siskiyou Marble Mountains, near Cudahy lakes. Granite Trail. 1524 Comment
  HSC26559  Hieracium horridum J. P. Smith, J. O. Sawyer 1972-8-20 5751 Siskiyou Slope of Mt. Hoffman 2134 Comment
  RSA238732  Hieracium horridum Frederick W. Oettinger 1969-9-3 1610 Siskiyou Shasta Ridge below English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC315998  Hieracium nudicaule Wm. Bridge Cooke 1938-7-29 11407 Siskiyou Below Wagon Camp, Mount Shasta 1676 Comment
  JEPS84328  Hieracium nudicaule L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6371 Siskiyou ca 1/2 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  UC134363  Hieracium scouleri unknown 1892-6-28 Siskiyou Jaynesville Comment
  CAS-BOT-BC280781  Holcus lanatus G. C. Kimber 1934-6-9 51 Siskiyou Ney Creek, 1/8 mile above junction with Sacramento River 731 Comment
  HSC27920  Holodiscus discolor Carl W. Mize 1972-9-23 121 Siskiyou 610 Comment
  HSC99346  Holodiscus discolor J. O. Sawyer 1973-7-17 2546 Siskiyou Along trail to Wild Lake 1768 Comment
  RSA183703  Holodiscus discolor Gilbert Muth 1965-8-3 148 Siskiyou Down Creek from Marble Valley, Marble Mountains. Comment
  RSA237610  Holodiscus discolor Frederick W. Oettinger 1969-8-19 1448 Siskiyou Ridge from Arrow Peak to King David Peak. Salmon Mountains. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  SEINET515852  Holodiscus microphyllus var. glabrescens Vernon Oswald 1997-7-28 8773 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi. S of Medicine Lake. 1366 Comment
  CAS-BOT-BC289277  Hordeum brachyantherum subsp. brachyantherum Louis C. Wheeler 1934-8-14 3133 Siskiyou N. side White Mt., Klamath National Forest 1767 Comment
  UCD85592  Hordeum depressum A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3423 Siskiyou Shasta Valley. 6 miles N of Gazelle. Comment
  CHSC91254  Hordeum murinum subsp. leporinum Lowell Ahart; John Dittes 2005-6-10 12067 Siskiyou South of a poor dirt road, about 90 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  RSA32904  Horkelia daucifolia A. A. Heller 1927-5-14 14384 Siskiyou Shasta Valley Comment
  HSC75114  Horkelia daucifolia var. daucifolia J. P. Smith, Thomas W. Nelson 1979-6-15 10125 Siskiyou Klamath National Forest, road to Carmen Lake, 0.6 mi. from its junction with Hwy. 3 1646 Comment
  CHSC70479  Horkelia fusca subsp. parviflora A. Sanger 1996-7-16 2425 Siskiyou 200 yds N of road to Burnt Lava Flow, on Rd 56. On E side of road. 1804 Comment
  JEPS82346  Horkelia fusca subsp. parviflora L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2302 Siskiyou .8 mi s Bray (junction of U. S. 97); Murphy Wells 1493 Comment
  UC398641  Horkelia fusca subsp. parviflora A. A. Heller 1927-8-1 14435 Siskiyou near Shasta City (Sisson); Mt. Shasta, s side Comment
  SD215712  Horkelia fusca subsp. pseudocapitata E. K. Balls, L. W. Lenz 1956-6-18 21804 Siskiyou 1.4 miles west of Bartle (junction with road to Lava Beds), State Highway 89, McCloud to Burney 1219 Comment
  CAS-BOT-BC514292  Horkelia fusca var. pseudocapitata Alice Eastwood 1921-7-25 10810 Siskiyou Bigelows, McCloud River Comment
  UC1076054  Horkelia tridentata subsp. flavescens Herbert L. Mason 1947-5-17 14763 Siskiyou on Scott Mountain raod five mi s Callahan; Scott Mountain Road Comment
  HSC12274  Horkelia tridentata var. tridentata Richard Spjut 1970-7-18 469 Siskiyou 8 mi. E of Mt. Shasta just off Hwy. 89 1220 Comment
  CAS-BOT-BC539428  Horkelia tridentata var. tridentata W. B. Cooke; V. G. Cooke 1972-6-7 45457 Siskiyou Along Mud Creek Dam Road, Mt. Shasta Comment
  CAS-BOT-BC201128  Hosackia crassifolia Geo. D. Butler 1910-6-6 1452 Siskiyou Quartz Valley Comment
  UCD106151  Hosackia oblongifolia Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road from Happy Camp to O'Brien, Oregon. Comment
  CAS-BOT-BC142665  Howellanthus dalesianus Dorothy Parker; Wayne Roderick 1967-7-25 s.n. Siskiyou Kangaroo Lake, Scott Mts 1981 Comment
  LA203776  Hulsea nana Wm. Bridge Cooke; 1939-7-26 13769 Siskiyou Mt. Shasta, Along the Summit Trail below Lake Helen 2895 Comment
  UC134349  Hulsea nana E. B. Copeland 1903-8-16 3832 Siskiyou Mt. Shasta 3200 Comment
  POM73770  Hydrophyllum capitatum var. alpinum Geo. D. Butler 1910-5-10 1324 Siskiyou Goosenest foothills 1677 Comment
  JEPS82677  Hydrophyllum occidentale Wayne Roderick 1984-6-7 Siskiyou sw of Stewart Springs (Cabin Meadow); Cabin Meadow 1935 Comment
  HSC29246  Hydrophyllum occidentale Frederick W. Oettinger 1969-7-9 945 Siskiyou Marble Mtn. Wilderness Area, NW of Upper English Lake 1799 Comment
  CAS-BOT-BC312852  Hymenoxys lemmonii Brandegee No date on label s.n. Siskiyou Montague Comment
  CAS-BOT-BC312854  Hymenoxys lemmonii Geo. D. Butler 1910-7-4 1640 Siskiyou Shasta River Comment
  JEPS66789  Hypericum anagalloides W. L. Jepson July 1894 13956 Siskiyou Sisson Comment
  CAS-BOT-BC400989  Hypericum anagalloides Wm. Bridge Cooke 1938-9-8 11654 Siskiyou Mount Shasta. Squaw Creek Heather Meadows Comment
  UC1034069  Hypericum formosum var. scouleri W. Bridge Cooke 1941-8-8 16142 Siskiyou between Wagon Camp Rd. and McCloud R.R. near Howard; Mt. Shasta 1219 Comment
  UC164399  Hypericum formosum var. scouleri Geo. D. Butler 1910-7-3 1627 Siskiyou <Goosenest> foothills 1219 Comment
  RSA238856  Hypericum perforatum Frederick W. Oettinger 1969-8-24 1525 Siskiyou Mid-way between the English Lake main camp and Sundew Bog due west of the camp. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  CAS-BOT-BC401285  Hypericum perforatum L. E. Smith 1913-6-20 385 Siskiyou Weed Comment
  JEPS5829  Idahoa scapigera F. W. Hooper Apr. 1897 Siskiyou Little Shasta Comment
  HSC45996  Ipomopsis aggregata J. P. Smith, Steve Selva 1970-7-27 4518 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  JEPS802  Ipomopsis aggregata W. L. Jepson 1937-7-30 18566 Siskiyou Poker Flat Siskiyou Mtns (headwaters of Indian Creek) 1584 Comment
  SD76181  Ipomopsis aggregata Helen V. Witham unknown 598 Siskiyou McBride Springs Road, Mt. Shasta. 1500 Comment
  RSA78832  Ipomopsis aggregata subsp. formosissima P. A. Munz 1952-7-2 17910 Siskiyou West of Baldy Mountain L.O. 6 air miles west of Happy Camp, Siskiyou Mountains 1768 Comment
  HSC76768  Ipomopsis congesta K. T. Stillman 1976-8-7 377 Siskiyou Marble Mtn. Wilderness Area, Box Camp Mtn. 2195 Comment
  UC722674  Ipomopsis congesta C. L. Hitchcock and J. S. Martin 1939-7-9 5306 Siskiyou n side Black Mtn (near Marble Mt. (King's Castle)) 2072 Comment
  JEPS109259  Ipomopsis congesta subsp. congesta D. W. Taylor 2002-7-29 18288 Siskiyou South China Mountain; cirque at head of the W fork of Huston Creek (Huston Creek Divide on USFS trail sign at summit) ca 0.4 miles E of summit. Comment
  CAS-BOT-BC133695  Iris tenax Gail Newton 1980-6-20 438 Siskiyou Near Bald Mountain 1096 Comment
  HSC27648  Iris tenuissima Carl W. Mize 1972-6-8 5 Siskiyou Along the main trail 328 Comment
  RSA240091  Iris tenuissima Frederick W. Oettinger 1969-8-12 1332 Siskiyou Near Yellow Dog Creek. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 915 Comment
  CDA3771  Isatis tinctoria T. C. Fuller 1958-6-18 1792 Siskiyou Highway 96 above Klamath River, 6 miles west of Seiad Valley. 0 Comment
  CAS-BOT-BC88664  Isatis tinctoria George Dexter Butler 1910-6-7 1534 Siskiyou Scott River. Comment
  CDA3770  Isatis tinctoria Margaret Bellue Jun 1935 Siskiyou Scott Valley. 0 Comment
  POM95097  Isatis tinctoria Geo. D. Butler 1910-6-7 1534 Siskiyou Scott River. Comment
  UC10592  Isatis tinctoria J. H. Gilbert June 1899 Siskiyou Scott Valley Comment
  RSA597971  Isoetes L. C. Wheeler 1963-8-31 8315 Siskiyou Siskiyou Mountains. Devil's Punch Bowl off Clear Creek. 1432 Comment
  UC400938  Isoetes bolanderi Geo. D. Butler 1908-8-3 256 A Siskiyou Log Lake, Shackleford Creek Log Lake Comment
  HSC26913  Isoetes bolanderi J. P. Smith, J. O. Sawyer 1971-9-17 4775 Siskiyou Shallow water at edge of Little Duck Lake Comment
  CHSC40151  Juncus balticus L. P. Janeway 1983-8-28 639 Siskiyou At Poker Flat, a meadow. Middle of lower portion of meadow. 1524 Comment
  HSC71107  Juncus balticus subsp. ater Thomas W. Nelson, Jane Nelson, J. P. Smith 1978-7-24 4502 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC85851  Juncus balticus subsp. ater L. P. Janeway 1983-8-28 639 Siskiyou Poker Flat 1529 Comment
  HSC46746  Juncus balticus subsp. ater William J. Ferlatte 1974-7-26 1597 Siskiyou Big Flat near S Fork of Salmon River, 100 m W of campground 1524 Comment
  RSA15459  Juncus bufonius var. bufonius Carl B. Wolf 1927-8-26 1088 Siskiyou Klamath River, 14 miles above Happy Camp. Comment
  RSA186331  Juncus drummondii Gilbert Muth 1966-10-16 23 Siskiyou Marble Mountains 1793 Comment
  UC642527  Juncus drummondii unknown 1939-8-24 13900 Siskiyou near Squaw Valley Creek w branch; Mount Shasta 2286 Comment
  JEPS25661  Juncus ensifolius Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7304 Siskiyou 4 air mi nne Preston Peak (at Twin Valley, just e of Del Norte County line, watershed of Indian Creek); Siskiyou Mts., Twin Valley, Indian Creek 1219 Comment
  RSA238920  Juncus ensifolius Frederick W. Oettinger 1968-9-6 743 Siskiyou At Bear Meadow mid-way along a straight line between English Peak and Tom Taylor cabin, at the head of Snowslide Gulch. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  UC1601865  Juncus ensifolius Miss Edmonds 1890-7-4 Siskiyou Comment
  HSC61161  Juncus mertensianus Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  JEPS84176  Juncus mexicanus L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6380 Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1.5 mi e of Red Butte summit) 1900 Comment
  UC1258472  Juncus nevadensis Maralyn A. Renner 1980-8-19 2492 Siskiyou s side Caribou lake; Klamath National Forest, Coffee Creek Quad. Comment
  HSC30706  Juncus nevadensis var. nevadensis Frederick W. Oettinger, R. F. Thorne 1969-8-6 1241 Siskiyou Marble Mtn. Wilderness Area, NNW of Pine Lake 1883 Comment
  CHSC105449  Juncus occidentalis Peter F. Zika 2008-7-21 23927 Siskiyou Klamath Range. E side of I-5, near Exit 732, Dunsmuir. 770 Comment
  RSA607421  Juncus occidentalis L. C. Wheeler 1934-8-17 3185 Siskiyou Siskiyou Mts. North side White Mt. 1829 Comment
  HSC77129  Juncus tenuis L. P. Janeway 1983-7-11 411 Siskiyou Along edge of dirt road 350 m N of W Branch Guard Station 671 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
  CHSC88381  Juncus trilocularis Jenny Marr 1993-7-1 186 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC4852  Juniperus communis var. jackii J. O. Sawyer 1968-7-23 591 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  CDA707  Juniperus communis var. saxatilis J. Grisham 1960-10-27 Siskiyou Mt. Eddy, ca. 6 mi. W of Mt. Shasta City. Comment
  CAS-BOT-BC81219  Juniperus occidentalis C. H. M. 1919-9-24 s.n. Siskiyou Ager Comment
  CAS-BOT-BC81223  Juniperus occidentalis Anderson 1925-10-1 s.n. Siskiyou 10 miles north of Edgewood Comment
  UC401377  Juniperus occidentalis Geo. D. Butler 1908-9-6 226 Siskiyou dry land near Yreka Comment
  NY19868  Juniperus occidentalis E. P. Lee 1934-8-9 1014 Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531160  Juniperus occidentalis Jeffrey Huber 1971-6-9 Huber 268 Siskiyou 3 mi N of Weed, on US Hwy 97; S facing 20.00 slope; roadside; in Pinus ponderosa, and P. jeffreyi, and Artemisia tridentata and Purshia. 1128 Comment
  POM148750  Juniperus occidentalis var. occidentalis J. B. Feudge 1927-8-11 1618 Siskiyou Hornbrook Comment
  RSA105315  Juniperus occidentalis var. occidentalis Milo S. Baker 1955-6-26 13071 Siskiyou Highway 99, 2 miles south of Gazelle 915 Comment
  SEINET3108511  Kalmia polifolia Steve Selva, Robert Jensen 1974-8-25 48 Siskiyou Meadow at west end of Little Duck Lake. Comment
  UC887149  Keckiella lemmonii Alice Eastwood 1917-9-2 6635 Siskiyou Shasta Springs Comment
  CHSC1617  Kelloggia galioides V. Holt 1932-7-25 Siskiyou On Mt. Shasta. 1463 Comment
  JEPS25592  Kelloggia galioides Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-2 7224 Siskiyou near n base Caribou Mtn. (Big Flat Campground, headwaters of South Fork of the Salmon River, just s of low divide (Trinity Co. boundary)); South Fork of the Salmon River 1508 Comment
  JEPS94847  Kochia scoparia Vernon H. Oswald and Lowell Ahart 1998-9-16 9634 Siskiyou Highway 161 adjacent to a marsh at Lower Klamath National Wildlife Refuge (5.3 mi e of Highway 97) 1243 Comment
  CAS-BOT-BC274223  Koeleria Melissa A. Berry 1957-7-11 s.n. Siskiyou Parrott Mill Road, near Callahan 975 Comment
  RSA578033  Koeleria macrantha L. C. Wheeler 1935-6-30 3630 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  UC618854  Kopsiopsis strobilacea W. Bridge Cooke 1938-6-24 11096 Siskiyou Mount Shasta, near MacBride Springs. Comment
  UC705502  Kopsiopsis strobilacea Marion Ownbey, Fred G. Meyer 1940-7-7 2220 Siskiyou Summit of Cayenne Ridge, Marble Mountain. Comment
  RSA0084174  Kopsiopsis strobilacea Frederick W. Oettinger 1967-8-21 299 Siskiyou Salmon Mountains: The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Appox. 20 yards S. off the Tom Taylor Cabin - Pine Lake trail just after one leaves the first patch of Red Fir forest (heading towards Pine Lake). 2073 Comment
  RSA0104248  Kopsiopsis strobilacea Frederick W. Oettinger 1968-8-16 537 Siskiyou Near the summit of Little Medicine Mountain N of Hancock Lake. 2057 Comment
  RSA0107897  Kopsiopsis strobilacea Thomas H. Harris 1947-4-30 s.n. Siskiyou Near West Fork Campground, north of Happy Camp on Indian Creek Road. 1219 Comment
  OBI55444  Lactuca biennis David J. Keil 1992-7-20 23502 Siskiyou Klamath NF. Along Forest Rd 46N64, 2.8 mi W of Scott river rd Comment
  CHSC91340  Lagophylla ramosissima subsp. ramosissima Lowell Ahart; John Dittes 2005-6-9 12016 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  RSA183459  Ledum glandulosum J. M. Tucker 1963-7-5 3704 Siskiyou Blake's Fork of South Russian Creek (a tributary of the Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1616 Comment
  RSA659519  Ledum glandulosum Gary D. Wallace 1990-7-1 2956 Siskiyou Trinity Mountains: SW of Shasta City, Cedar Basin Research Area. 1828 Comment
  RSA761840  Ledum glandulosum R. F. Thorne, Frederick W. Oettinger 1969-8-4 63376 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 2073 Comment
  RSA785410  Ledum glandulosum Leo Miller 1938-6-21 s.n. Siskiyou Siskiyou Mnts. 762 Comment
  RSA105420  Lemna G. D. Barbe 1955-6-29 50 Siskiyou 4.1 miles southeast of Etna on the Eastside road 915 Comment
  HSC64057  Lepidium campestre J. P. Smith, Steve Selva 1970-7-17 4427 Siskiyou Along Klamath River. Comment
  RSA105500  Lepidium campestre G. D. Barbe 1955-6-29 31 Siskiyou 1 mile east of Callahan 976 Comment
  CAS-BOT-BC89182  Lepidium draba Lincoln Constance; Reed Clark Rollins 1942-5-14 2920 Siskiyou Klamath Siskiyou Region. One mile east of Yreka. 762 Comment
  CHSC86463  Lepidium perfoliatum Jenny Marr 1993-7-1 80 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NE of Meiss Lake. 1349 Comment
  UC1126705  Lepidium perfoliatum L. Whitney 1934-6-23 4 Siskiyou Tennant Dorris Quad., Antelope Creek 1463 Comment
  POM94079  Lepidium ramosissimum var. bourgeauanum Geo. D. Butler 1910-6-27 1612 Siskiyou Yreka Creek. Comment
  POM230550  Leptosiphon ciliatus J. T. Howell 1937-7-22 s.n. Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  RSA31680  Leptosiphon ciliatus A. A. Heller 1938-7-12 s.n. Siskiyou Along US Hwy. 97, 5 miles north of Weed Comment
  UC10685  Lesquerella occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1653 Siskiyou Marble Mountain; North Coast Ranges, Marble Mountain 2438 Comment
  HSC26903  Lessingia nemaclada J. P. Smith, J. O. Sawyer 1971-9-18 4796 Siskiyou Hwy. 3 between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  SEINET2030161 Image available Leucothoe davisiae Lester Rowntree 1937-7-26 s.n. Siskiyou Caribou Lakes Comment
  RSA183694  Lewisia cotyledon Gilbert Muth 1965-8-5 306 Siskiyou Steep alpine slope, N slope of Marble Rim, near Black Mtn Comment
  RSA237461  Lewisia cotyledon Frederick W. Oettinger 1968-8-23 606 Siskiyou Ridge below English Lake overlook by English Peak meadow trail Y going to Hancock Lake, Crapo Peak and Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  HSC69262  Lewisia leeana John Palmer 1980-7-24 661 Siskiyou Dillon Divide 1707 Comment
  SEINET4176732 Image available Lewisia leeana Sally Walker 1982-7-17 Siskiyou Alex hole Klamath National Forest 2134 Comment
  SEINET5324940  Lewisia leeana G. Butler 1910-8-8 1687 Siskiyou Shackleford Creek Comment
  HSC26223  Lewisia nevadensis J. P. Smith, J. O. Sawyer 1972-5-27 5349 Siskiyou Hwy. 3 near the Scott Mtn. Campground on divide between Scott and Trinity Rivers 1601 Comment
  CDA23971  Lewisia nevadensis T. C. Fuller 1962-6-13 8985 Siskiyou Toad Well, road to Medicine Lake, ca. 12 miles northeast of Bartle. 0 Comment
  RSA464484  Lewisia rediviva Christopher Davidson 1975-6-5 2660 Siskiyou just above gate on special service rd branching SE off rd from Gazelle to Callahan 9.3 mi. W of Gazelle. 1471 Comment
  CAS-BOT-BC283812  Leymus cinereus Geo. D. Butler 1909-6-19 839 Siskiyou Near Yreka Comment
  CAS-BOT-BC283814  Leymus cinereus L. E. Smith 1915-7-1 s.n. Siskiyou Bray Comment
  SBBG30566  Leymus cinereus D. Myrick 1968-6-22 1997 Siskiyou northern part of Lava Beds Nat Monument near Tule Lake Nat Wildlife Refuge 1310 Comment
  HSC410  Ligusticum californicum William J. Ferlatte 1967-8-23 1098 Siskiyou Head of Kidd Creek 2256 Comment
  CAS-BOT-BC436054  Ligusticum grayi Annetta Carter 1939-8-21 1472 Siskiyou Above SE end of Taylor Lake, 12 miles SW of Etna, Salmon Mountains 2194 Comment
  UC165764  Ligusticum grayi Geo. D. Butler 1908-8-11 459 Siskiyou Shackleford Creek near Quartz Valley; Shackleford Creek Comment
  POM82381  Ligusticum grayi Geo. D. Butler 1908-8-3 464 Siskiyou Log Lake, Shackleford Creek Comment
  RSA377128  Lilium M. B. Dunkle 1944-7-12 9085 Siskiyou Siskiyou National Forest Comment
  HSC67682  Lilium kelleyanum John S. Palmer 1980-7-24 623 Siskiyou Elk Hole 1503 Comment
  CAS-BOT-BC509367  Lilium kelleyanum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 7 Siskiyou On bottom of canyon and along banks of Cow Creek about 10 miles NE of Sawyer's Bar, on road to Etna. 975 Comment
  CAS-BOT-BC509377  Lilium kelleyanum John Thomas Howell 1939-8-3 14949 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  RSA130325  Lilium kelleyanum Albert M. Vollmer 1949-7-5 11 Siskiyou 7 miles from Callahan on Callahan--Carrville road Comment
  CAS-BOT-BC130815  Lilium pardalinum W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow Comment
  UC1334272  Lilium pardalinum subsp. shastense Albert M. Vollmer and Ira L. Wiggins 1940-7-5 7 Siskiyou ca. 10 mi. n.e. Sawyer's Bar (along banks of Cow Creek, on rd. to Etna); Cow Creek 975 Comment
  CAS-BOT-BC130871  Lilium pardalinum subsp. wigginsii A. M. Vollmer; L. Beane 1953-7-1 112 Siskiyou Hamburg, Klamath River Comment
  HSC61120  Lilium parvum Al Hobart 1965-8-14 Siskiyou USFS Rd. 17N04, Doe Flat 1067 Comment
  CAS-BOT-BC133022  Lilium washingtonianum subsp. purpurascens Gilbert Muth 1966-7-29 133 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CAS-BOT-BC133024  Lilium washingtonianum subsp. purpurascens Marion Ownbey; Fred G. Meyer 1940-7-6 2196 Siskiyou Summit of Cayenne Ridge, Marble Mountain Comment
  CAS-BOT-BC133105  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 9 Siskiyou 3 1/2 miles northeast of the town of Mount Shasta 1402 Comment
  UC880302  Linanthus unknown 1941-6-6 16012 Siskiyou e base Mt. Eddy Comment
  JEPS58290  Linanthus ciliatus Willis L. Jepson Jul 24 1894-Aug 10 1894 20916 Siskiyou Sisson Comment
  POM229948  Lindernia dubia var. dubia Louis C. Wheeler 1934-9-15 3261 Siskiyou Walker, Klamath River, Siskiyou Mts. (Mt. Diablo Mer.) 518 Comment
  CAS-BOT-BC240385  Linnaea borealis subsp. longiflora A. A. Heller 1905-6-17 8056 Siskiyou Near the Sacramento River west of and near Sisson Comment
  CAS-BOT-BC416401  Linnaea borealis subsp. longiflora Ira L. Wiggins 1955-7-23 13467 Siskiyou Ridge west of China Creek, south side of south fork of Salmon River 1097 Comment
  HSC4866  Linnaea borealis subsp. longiflora J. O. Sawyer 1968-6-25 335 Siskiyou 1646 Comment
  UC912441  Linnaea borealis var. longiflora D. Tebbe 1929-7-15 137 Siskiyou Salmon Mountains Comment
  RSA105458  Linum lewisii M. S. Baker 1955-6-27 13084 Siskiyou Hwy. 99, 4 mi. S of Gazelle. 915 Comment
  HSC18961  Listera caurina J. O. Sawyer 1969-7-26 1588 Siskiyou Along Sugar Creek 1707 Comment
  HSC61926  Listera caurina Ruby Van Deventer Siskiyou Poker Flat 1585 Comment
  HSC16644  Listera convallarioides Dorothy Parker 1949-6-26 Siskiyou Salmon Mountains Range, Etna Creek 1177 Comment
  HSC476  Listera convallarioides William J. Ferlatte 1967-7-25 724 Siskiyou Caribou Basin 1982 Comment
  CDA30933  Lithocarpus densiflorus var. densiflorus M. Beyers, G. F. Hrusa 2010-8-18 691 Siskiyou Siskiyou Mountains, Klamath Ranges: O'Brien-Happy Camp Road; 1 mile above road to Kelly Lake, +/- 2 miles above West Branch Campground. 807 Comment
  RSA697648  Lithocarpus densiflorus var. densiflorus Leo Miller 1938-07 s.n. Siskiyou Siskiyou Mnts. 1006 Comment
  HSC64132  Lithophragma affine J. P. Smith 1973-5-5 6473 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC78196  Lithophragma glabrum L. P. Janeway 1983-7-3 380 Siskiyou Poker Flat 1524 Comment
  CDA25417  Lithophragma glabrum F. D. Horn 1978-4-9 Siskiyou Horn Ranch near Etna. 0 Comment
  CAS-BOT-BC317337  Lithospermum californicum Antone J. Soares 1922-6-1 8553 Siskiyou Shasta Springs Comment
  CDA40613  Lithospermum californicum Gene Deal 1968-6-11 s.n. Siskiyou Adar Mill prop., Mt Shasta. 0 Comment
  RSA25721  Lithospermum californicum C. B. Wolf 1941-7-26 11080 Siskiyou Sacramento River Canyon, 1 mile below Dunsmuir. 671 Comment
  CAS-BOT-BC269147  Lolium perenne Dr. Ed Palmer 1892-1-1 2646 Siskiyou Near Mt. Shasta Comment
  HSC78321  Lomatium californicum L. P. Janeway 1983-7-17 425 Siskiyou Poker Flat, E edge of upper portion of meadow 1524 Comment
  HSC76705  Lomatium dissectum var. multifidum K. T. Stillman 1976-7-14 224 Siskiyou Marble Mtn. Wilderness Area, Kings Castle 2073 Comment
  HSC91132  Lomatium engelmannii Jennifer Whipple 1976-6-11 966 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  JEPS17115  Lomatium macrocarpum Geo. D. Butler 1909-5-9 744 Siskiyou Yreka Comment
  POM82364  Lomatium macrocarpum Geo. D. Butler 1910-5-4 1275 Siskiyou Dry hill, Yreka. Comment
  SD88481  Lomatium macrocarpum Darley F. Howe 1972-7-4 4867 Siskiyou Stoney hilltop south of Del Norte, Marker on road to Youngs valley, Sanger Pass Road 1735 Comment
  CAS-BOT-BC217790  Lomatium peckianum Lewis S. Rose 1934-4-20 34234 Siskiyou 4 mi. N. of Weed 1066 Comment
  HSC46209  Lomatium piperi Jennifer Whipple 1976-5-2 912 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  POM67575  Lonicera ciliosa Geo. D. Butler 1910-8-1 1808 Siskiyou Yreka Creek. Comment
  HSC42234  Lonicera conjugialis J. D. Mastrogiuseppe 1974-9-2 161 Siskiyou Above Kidd Creek. 1951 Comment
  HSC4902  Lonicera conjugialis J. O. Sawyer 1968-7-22 527 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC69301  Lonicera conjugialis Maralyn A. Renner 1980-7-24 1988 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  HSC78379  Lonicera conjugialis L. P. Janeway 1983-8-6 499 Siskiyou Poker Flat 1524 Comment
  CDA27281  Lotus nevadensis var. nevadensis T. C. Fuller 1960-6-29 4642 Siskiyou Scott Mountain Road, 4.2 miles south of Callahan. 0 Comment
  UC1025034  Lotus purshianus var. purshianus Leo Whitney 1934-6-23 1542 Siskiyou near Tennant; Antelope Creek 1463 Comment
  POM27064  Lotus unifoliolatus Geo. D. Butler 1910-6-27 1610 Siskiyou Yreka Comment
  HSC4894  Luetkea pectinata J. O. Sawyer 1968-6-23 625 Siskiyou Along trail from Brown's Valley to Caribou basin including areas around Snowslide Lake and Caribou Basin 1829 Comment
  POM210884  Luetkea pectinata Louis C. Wheeler 1934-8-9 3089 Siskiyou Siskiyou Mountains: Head of Jaynes Canyon. 1982 Comment
  SD219102  Luetkea pectinata R. F. Thorne, Frederick W. Oettinger 1969-8-4 63365 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness area, high lake basins in the vicinity of English Peak; SE side of Diamond Lake. 2073 Comment
  SEINET11546885 Image available Luetkea pectinata C. L. Hitchcock, J. S. Martin 1939-7-9 5328 Siskiyou 1/2 mile southeast of King's Castle; Marble Mountains 1829 Comment
  HSC29123  Luina hypoleuca Frederick W. Oettinger 1968-8-2 367 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: NE of Diamond Lake 2082 Comment
  SBBG3501  Lupinus albicaulis H. and M. Dearing 1939-6-30 3763 Siskiyou Callahan-Trinity Alps Rd Comment
  LA205029  Lupinus albicaulis A. A. Heller; 1927-8-1 14436 Siskiyou Sacramento River, a short distance above Shasta Springs Comment
  CAS-BOT-BC195966  Lupinus albifrons var. albifrons Charles Piper Smith 1947-5-6 47205 Siskiyou Gazelle, 3.2 miles south, Highway 99 Comment
  RSA47602  Lupinus albifrons var. flumineus Roxana S. Ferris, Laura Lorraine, Daniel F. Ferris 1948-6-12 11725 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  CHSC26188  Lupinus andersonii J. P. Kroessig 1977-8-6 52 Siskiyou Jct of Everitt Memorial Hwy and McBride Springs Campground access road, w base of Mt Shasta, ca. 4.5 km n of Mt Shasta City. 1460 Comment
  UCD77844  Lupinus angustiflorus Robert E. Preston 2001-6-23 1603 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 2011 Comment
  SD61048  Lupinus argenteus Darley F. Howe 1964-8-5 3936 Siskiyou 3 miles south of Dorris on Hwy 97 1219 Comment
  HSC2248  Lupinus aridus Geo. D. Butler 1910-9-11 1867 Siskiyou Weed Comment
  HSC30776  Lupinus bicolor J. P. Smith, J. O. Sawyer 1972-5-28 5363 Siskiyou 1 mi. S of Etna on Hwy. 3 91 Comment
  HSC44985  Lupinus breweri J. O. Sawyer 1978-6-21 3290 Siskiyou Marble Mtn. Wilderness area, ridge above Crapo Meadow 2012 Comment
  HSC63261  Lupinus breweri M. A. Baker 1979-7-30 1082 Siskiyou Marble Mtn. Wilderness, SE of Tickner peak 2200 Comment
  CAS-BOT-BC215193  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
  HSC81669  Lupinus croceus Thomas W. Nelson, Jane P. Nelson 1980-7-17 6070 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  CAS-BOT-BC215180  Lupinus croceus W. W. Eggleston 1915-8-12 11601 Siskiyou S Fork of Shasta River, Mount Eddy, Shasta Forest 2000 Comment
  SEINET10837763  Lupinus croceus var. croceus Oettinger 1969-7-25 OETTINGER s.n. Siskiyou Scott mts., Shasta-trinity nat'l forest: c. 15 Air mi. Sw of weed, near Kangaroo lake campground; dry rocky meadow in lodgepole pine forest. Comment
  SEINET3166566  Lupinus croceus var. croceus R. W. Spellenberg 2006-6-19 13747 Siskiyou 35 air km WSW of Weed on Calif. Hwy. 3, 8.5 km Sof jct with Callahan-Gazelle Rds., 1.6 km N of Scott Mtn. Summit 1525 Comment
  SEINET10485330  Lupinus formosus Bruce A. Bohm, H. M. Banek 1980-5-6 Bohm BAB- 1378 Siskiyou I 5 roadside. Comment
  UC683332  Lupinus klamathensis Mrs. H. P. Bracelin 1931-6-21 470 Siskiyou n side Mt. Eddy (below Dobkin's Lake); n side of Mt. Eddy below Dobkin's Lake 1584 Comment
  SEINET10937103  Lupinus klamathensis Charles Piper Smith 1940-6-7 Smith 15101 Siskiyou Occasional along the pacific hwy near black butte. 1219 Comment
  CAS-BOT-BC202056  Lupinus lapidicola Richard R. Halse 1989-5-6 3817 Siskiyou Along Old Highway 99, 3.2 miles south of Gazelle or 4.2 miles north of its junction with Old Stage Road 888 Comment
  SDSU4985  Lupinus lapidicola D. F. Howe 1972-7-4 4869 Siskiyou Ranger Peak road, stoney hilltop just south of Del Norte, marker near Youngs Valley. 1737 Comment
  SEINET10485447  Lupinus lapidicola Thomas W. Nelson, Jane P. Nelson 1979-5-26 Nelson 4721 Siskiyou On serpentine along State Route 3 north of Scott Mountain Summit at junction with Forest Road 40N03. 1524 Comment
  HSC32770  Lupinus latifolius subsp. viridifolius Frederick W. Oettinger 1968-9-7 768 Siskiyou Marble Mtn. Wilderness Area, around Tobacco Lake 1890 Comment
  HSC63293  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-7-30 1082 Siskiyou Marble Mtn. Wilderness, .8 k. SE of Tickner (Peak) 2100 Comment
  POM229175  Lupinus latifolius subsp. viridifolius Louis C. Wheeler 1935-6-13 3573 Siskiyou Shackleford Creek, Marble Mts. 976 Comment
  LA93396  Lupinus latifolius var. latifolius J. M. Tucker; 1974-7-28 4325 Siskiyou adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area 1462 Comment
  SEINET10485457 Image available Lupinus latifolius var. viridifolius A. Arthur Heller 1905-6-1 Heller 7928 Siskiyou Between Dunsmuir and Upper Soda Spring. Comment
  JEPS86069  Lupinus lepidus var. sellulus Wayne Roderick 1966-6-26 Siskiyou just e Cook and Green Pass; e of Cook and Green Pass area 1371 Comment
  SBBG3658  Lupinus leucophyllus H. and M. Dearing 1939-6-30 3751 Siskiyou near Etna 1219 Comment
  RSA166007  Lupinus leucophyllus Donald Myrick 1961-6-21 314 Siskiyou Siskiyou county: on Deer Camp road above oak Knoll Ranger Station on Klamath River 19 miles W of Hwy 99. 1738 Comment
  UC156994  Lupinus microcarpus var. microcarpus Geo. D. Butler 1910-5-21 1373 Siskiyou Klamath hills Comment
  POM228984  Lupinus nanus var. apricus Louis C. Wheeler 1935-5-18 3499 Siskiyou Siskiyou Mountains; Yreka Creek. 854 Comment
  SBBG21863  Lupinus obtusilobus D. Myrick 1964-7-25 965 Siskiyou Panther Meadows, below Ski Bowl Lodge 2346 Comment
  UC1034051  Lupinus obtusilobus W. Bridge Cooke 1941-9-10 16310 Siskiyou vicinity Horse Camp (Mt. Shasta); Mt. Shasta Comment
  RSA120853  Lupinus obtusilobus H. K. Wagnon 1957-8-11 1688 Siskiyou East slope of Mt. Shasta on rd. to Brewer Cr., 3 mi. W of Military Pass Rd. Comment
  RSA104335  Lupinus onustus A. A. Heller 1905-6-15 s.n. Siskiyou Near Sisson Comment
  UC146923  Lupinus polyphyllus var. polyphyllus Harley P. Chandler June, 1901 1586 Siskiyou near Marble Mountain (North Coast Ranges); , near Marble Mountain 1828 Comment
  POM260225  Lupinus sellulus subsp. ursinus C. Leo Hitchcock, J. S. Martin, A. S. Hitchcock 1939-7-9 5323 Siskiyou 1/2 mile SE of Kings Castle, Marble Mts. 1829 Comment
  RSA105452  Lupinus sellulus var. lobbii Milo S. Baker 1955-6-28 13091 Siskiyou Highway 99, road band S of Weed. 1067 Comment
  SEINET10490872  Lupinus sellulus var. sellulus Joseph W. Congdon 1900-8-15 Congdon s.n. Siskiyou Forks castle road. Comment
  POM10805  Lupinus subvexus var. transmontanus E. B. Copeland 1903-6-2 3537 Siskiyou Klamathon Comment
  RSA0060498  Luzula macrantha Peter F. Zika 2012-5-18 25887 Siskiyou Near Dunsmuir Avenue, south end of town of Dunsmuir, 3.6 air km SE of Mount Bradley. 730 Comment
  JEPS40872  Luzula parviflora Paul C. Hutchison 1962-8-2 932 Siskiyou between Panther Meadow and top ski lift; Mount Shasta, bet Panther Meadow and top ski lift 2743 Comment
  JEPS74561  Luzula piperi W. J. Ferlatte 1966-8-5 349 Siskiyou Caribou Mountain Trinity Alps, Caribou Mtn 2468 Comment
  HSC21257  Lycium barbarum R. C. Wunner 1965-7-10 380 Siskiyou Lava Beds National Monument, Indian Well Ranger Station and around superintendent residence 1454 Comment
  RSA215639  Machaeranthera canescens var. shastensis Gilbert Muth 1969-8-8 1302 Siskiyou Boulder Peak Ridge 2287 Comment
  CAS-BOT-BC342668  Madia citriodora John Thomas Howell 1934-7-4 12410 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley Comment
  UC165392  Madia elegans Geo. D. Butler 1910-5-27 1413 Siskiyou near Yreka Comment
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Jan 23 2011
  UCD135763  Madia elegans Bruce G. Baldwin 1986-7-20 616 Siskiyou junction of California State Highway 96 and U.S. Forest Service Road 46N52 (west of town of Klamath River). Comment
  CAS-BOT-BC344545  Madia exigua Louis C. Wheeler 1934-6-2 2607 Siskiyou Klamath National Forest. Oak Knoll R. S. 670 Comment
  CAS-BOT-BC343435  Madia gracilis Wm. Bridge Cooke 1938-8-19 11523 Siskiyou Lower Bear Spring, Mt. Shasta 1524 Comment
  UCR45390  Madia gracilis D. H. Norris 1970-5-23 12233 Siskiyou Along Klamath River at Ishi Pishi [Rd.] Bridge near Somes Bar 145 Comment
  CAS-BOT-BC343426  Madia gracilis Wm. F. Herrin 1919-6-16 s.n. Siskiyou Shasta Springs Comment
  RSA238989  Maianthemum racemosum Frederick W. Oettinger 1966-6-27 29 Siskiyou 400 yeards up road from Crawford Creek Guard Station, Salmon River District, Klamath National Forest, Cecilville Comment
  HSC44852  Maianthemum racemosum subsp. amplexicaule J. P. Smith 1973-5-5 6465 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA264978  Maianthemum racemosum subsp. amplexicaule G. L. Clifton 1975-7-28 s.n. Siskiyou Near Cook and Green Pass near the Seiad Valley 1646 Comment
  RSA377693  Maianthemum racemosum subsp. amplexicaule J. P. Smith 1973-5-5 6465 Siskiyou Along Cook and Green Pass road. Comment
  HSC30445  Maianthemum stellatum Frederick W. Oettinger 1968-8-6 428 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  SEINET516141  Malva neglecta Vernon H. Oswald 1998-9-16 9643 Siskiyou Hwy. 161 at the Lower Klamath NWR 5.9 mi east of Hwy. 97. 1244 Comment
  JEPS109400  Melica aristata Dean W. Taylor 2004-7-20 19192 Siskiyou Mt. Shasta, slopes southwest of Squaw Valley Creek 1889 Comment
  RSA239036  Melica aristata Frederick W. Oettinger 1969-9-4 1663 Siskiyou North side of Tom Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  UCD87354  Melica geyeri R. Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road between Happy Camp and O'Brien, Oregon. Comment
  UC144807  Melica harfordii A. A. Heller 1905-6-1 7935 Siskiyou between Upper Soda Spring and Shasta Retreat Comment
  UCD87482  Melica harfordii Beecher Crampton 1956-8-21 3844 Siskiyou Gravelly and stony bench above the Sacramento River, just below the junction of the middle Fork with the south Fork. 1112 Comment
  HSC22263  Melica stricta J. O. Sawyer 1969-7-9 1264 Siskiyou Summit above S Sugar Lake. 2378 Comment
  HSC58562  Melica stricta G. L. Clifton, Griswold 1979-7-26 10115 Siskiyou Near Salmon Mountain, close to town of Forks of Salmon. 2103 Comment
  HSC42951  Melica subulata J. O. Sawyer, K. T. Stillman 1976-7-1 2777 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  UC1265410  Melica subulata F. W. Oettinger 1969-8-16 1394 Siskiyou near English Lake (sw of Wiregrass Meadow); Salmon Mtns 1676 Comment
  HSC15001  Melilotus albus R. C. Wunner 1965-7-16 395 Siskiyou Lava Beds National Monument, as rd. crosses Devils' Homestead Lava Flow 1296 Comment
  HSC15011  Melilotus albus R. C. Wunner 1965-7-16 396 Siskiyou Lava Beds National Monument, as rd. crosses Devils' Homestead Lava Flow 1296 Comment
  UCD125058  Mentha canadensis J. P. Smith; Steve Selva 1970-8-7 4542 Siskiyou Junction Interstate 5 and Stewart Creek Road. Comment
  SBBG14878  Mentzelia A. I. Richardson 1961-6-8 16 Siskiyou Big Springs Rd N of jct with Hwy 97 914 Comment
  UC164048  Mentzelia dispersa Geo. D. Butler 1909-6-12 906 Siskiyou McAdams Creek Comment
  UCD13283  Micranthes bryophora K. F. Mawdsley 1996-7-10 16 a Siskiyou California, Siskiyou County. Little Castle Lake, Seven Lakes Basin 7.5 topo. Comment
  SEINET3416626 Image available Micranthes ferruginea Rimo Bacigalupi, Lincoln Constance & L. Heckard 1960-7-20 7448 Siskiyou Siskiyou Mountains; Poker Flat (about 12 air miles northwest of Happy Camp) 1524 Comment
  CAS-BOT-BC429257  Micranthes oregana L. E. Smith 1914-6-9 714 Siskiyou Sisson Comment
  POM53404  Microseris laciniata subsp. laciniata E. B. Copeland 1903-4-13 3818 Siskiyou Sisson 1067 Comment
  CAS-BOT-BC349371  Microseris nutans L. E. Smith 1913-5-12 204 Siskiyou Dunsmuir Comment
  CDA8393  Microseris nutans T. C. Fuller 1962-6-13 8979 Siskiyou Road to Medicine Lake & Toad Lake, 6 miles northeast of Bartle. 0 Comment
  HSC68571  Microseris nutans Maralyn A. Renner 1980-6-23 967 Siskiyou W Fork Seiad Creek 878 Comment
  HSC837  Microseris nutans William J. Ferlatte 1967-7-9 694 Siskiyou Kidd Creek Trail 1982 Comment
  HSC41070  Microsteris gracilis J. O. Sawyer 1970-4-3 2056 Siskiyou Robinsons Flat, 4 mi. E of Sawyers Bar 732 Comment
  UCD77257  Mimulus breweri Robert E. Preston 2001-7-21 1723 Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 2066 Comment
  JEPS5710  Mimulus breweri Dorothy Parker 1953-8-9 577 Siskiyou Salmon Mountain 1920 Comment
  RSA237239  Mimulus guttatus Frederick W. Oettinger 1967-6-28 128 Siskiyou Mouth of Kelly Gulch, tributary of Salmon River. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  UC637085  Mimulus inodorus Edward Lee 1934-8-12 1042 Siskiyou tributary Klamath River (mouth of creek, e end of valley); Seiad Valley, Walker Creek 426 Comment
  UC917313  Mimulus inodorus R. Tofsrud and J. M. Tucker 1948-8-3 1778 Siskiyou 3 mi (by road) below summit Happy Camp to Waldo (Oregon) road Comment
  SEINET515908  Mimulus jepsonii Vernon Oswald 1997-7-28 8783 Siskiyou Forest Route 56 (42N56) 3.7 mi. E of Forest Route 49, edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave. 1756 Comment
  UCR72553  Mimulus layneae D. M. Thompson 1992-6-29 1023 Siskiyou Near Black Butte, midway between Mt. Shasta city and Weed. 1.2 mi north of I-5 interchange (Summit Drive / Deetz Road/Truck Village Drive) along N part of Truck Village Drive (E side of I-5). At summit of hill overlooking railway junction at end of pavement 1200 Comment
  POM5168  Mimulus layneae Copeland 1903-4-5 3857 Siskiyou Igerna. Comment
  UC164261  Mimulus lewisii Geo. D. Butler 1908-8-8 435 Siskiyou Marble Valley Comment
  SBBG30584  Mimulus moschatus D. Myrick 1968-6-26 2028 Siskiyou Coffee Crk; Trinity Alps 1463 Comment
  HSC64881  Mimulus moschatus D. L. Goforth 1979-7-19 270 Siskiyou Trinity Alps Wild Area, Caribou Lakes Basin, .5 mi. S of upper lake 2226 Comment
  UCD77259  Mimulus moschatus Robert E. Preston 2001-6-30 1641 Siskiyou Klamath National Forest, Rainbow Mountain. 1722 Comment
  UCD77261  Mimulus nanus var. jepsonii Robert E. Preston 2002-6-21 1873 Siskiyou Klamath National Forest, Rainbow Mountain, S slope, N of Trout Creek 1709 Comment
  JEPS32001  Mimulus nanus var. nanus W. B. and V. G. Cooke 1963-7-10 34263 Siskiyou n side Mt. Shasta (Bolam Road) Comment
  JEPS84017  Mimulus nanus var. nanus L. R. Heckard with J. Hickman et al. 1986-7-17 6502 Siskiyou e Condrey Mt.; Alex Hole 1950 Comment
  UC1540004  Mimulus nanus var. nanus M. Mitchell 1936-5-22 51 Siskiyou Black Crater Lava Beds National Monument 1356 Comment
  UC718167  Mimulus primuloides Carl B. Wolf 1934-7-6 6010 Siskiyou 1/2 mi s Wagon Camp (s slope of mt.); Mt. Shasta 1524 Comment
  RSA101711  Mimulus primuloides C. Hart Merriam 1898-09 s.n. Siskiyou Wagon Camp. Comment
  HSC429  Mimulus pulsiferae William J. Ferlatte 1967-6-30 586 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  CAS-BOT-BC388882  Minuartia douglasii J. H. Thomas 1954-5-14 4166 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, Southwestern Siskiyou County 1219 Comment
  CAS-BOT-BC388884  Minuartia douglasii Louis C. Wheeler 1934-6-4 2640 Siskiyou Klamath National Forest. Nigger Gulch 1066 Comment
  JEPS51480  Minuartia nuttallii subsp. gregaria W. L. Jepson Jul 17 1902-Jul 22 1902 2065 Siskiyou Devil's Backbone; w Siskiyou 1828 Comment
  HSC91384  Minuartia nuttallii subsp. gregaria Jennifer Whipple 1976-7-7 1320 Siskiyou Mount Eddy. 2530 Comment
  SEINET10537572  Minuartia nuttallii subsp. gregaria Mary Susan Taylor 1980-7-8 Taylor 3092 Siskiyou T40N R5W sec 35, Weed quad; Shastan Trinity Natl Forest; along Rd 40N43, at W end of Lake Siskiyou. 1372 Comment
  SEINET4856155  Minuartia stolonifera Unknown 1985-6-19 7839 Siskiyou Along south side of State Rt. 3, 3.1 m N of Scott Mountain Pass. 1220 Comment
  SEINET10874551 Image available Minuartia stolonifera Thomas W. Nelson, Jane P. Nelson 1985-6-19 Nelson 7839 Siskiyou T40N, R8W, Sec. 24. Along south side of State Route 3 3.1 miles north of Scott Mountain Pass. Rocky openings in Jeffrey pine woodland on serpentine. 1219 Comment
  CAS-BOT-BC229612  Mirabilis greenei L. E. Smith 1912-8-1 s.n. Siskiyou Hornbrooke Comment
  POM68863  Mirabilis greenei Geo. D. Butler 1910-5-11 1334 Siskiyou Shasta Valley Comment
  HSC61136  Mitella breweri Al Hobart 1968-6-20 Siskiyou El Capitan. Comment
  CHSC96407  Mitella caulescens L. P. Janeway 2006-7-1 8723 Siskiyou Klamath Ranges. Salmon Mountains; just west of Carter Meadow, north side of South Fork Salmon River. 1579 Comment
  HSC86553  Mitella pentandra D. K. Imper Jul 1987 Siskiyou Marble Mtn. Wilderness Area, Haypress Meadow, 8 mi. E of Somes Bar 1372 Comment
  HSC22291  Mitella pentandra J. O. Sawyer 1969-6-12 888 Siskiyou Sugar Creek 1515 Comment
  SEINET12219614  Mitella trifida H. P. Chandler 1901-1 1555 a Siskiyou near Marble Mountain 1829 Comment
  UC1053436  Moehringia macrophylla Rimo Bacigalupi and Arthur Holmgren 1950-4-24 3138 Siskiyou opposite town Dunsmuir (on e side of canyon, cliffs along Sacramento River); cliffs along Sacramento River, e side of canyon Comment
  UC166127  Moehringia macrophylla Geo. D. Butler 1910-4-22 1217 Siskiyou Shackleford Creek Comment
  HSC36944  Moehringia macrophylla J. P. Smith 1974-5-26 7586 Siskiyou Along FS Rd. 47N03, 1/4 mi. NE of Chandler Glade 1768 Comment
  HSC22247  Monardella glauca J. O. Sawyer 1969-8-4 1837 Siskiyou Above Sugar Lake 2134 Comment
  CHSC9489  Monardella odoratissima J. F. Goodwin 1971-7-3 135 Siskiyou 5.4 mi. south of Mt. Shasta Ski Bowl area. 1798 Comment
  HSC69290  Monardella odoratissima Maralyn A. Renner 1980-7-24 1947 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  HSC69342  Monardella odoratissima Maralyn A. Renner 1980-8-21 2540 Siskiyou Kidd Creek 2043 Comment
  LA86491  Monardella odoratissima J. M. Tucker; 1963-8-19 3785 Siskiyou Marble Mountain Wilderness Area, headwater of Canyon Creek 1920 Comment
  CHSC99716  Monardella odoratissima subsp. glauca L. P. Janeway 2008-7-24 9484 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. 2050 Comment
  UC1096812  Monardella odoratissima subsp. glauca Milo S. Baker 1957-6-16 13118 Siskiyou trip to Scott Mt. (after turn off near Callahan); North Coast Ranges Comment
  UCD125202  Monardella odoratissima subsp. glauca K. M. Meyer; A. Townesmith 2007-8-2 186 Siskiyou Klamath National Forest; 10.1 miles on National Forest Road 70, off Highway 97 toward Oregon. 1956 Comment
  CAS-BOT-BC222169  Monardella odoratissima subsp. pallida Marion Ownbey; Fred G. Meyer 1940-7-5 2182 Siskiyou On East side of Mt. Shasta Comment
  CAS-BOT-BC222179  Monardella odoratissima subsp. pallida Gilbert Muth 1965-8-3 s.n. Siskiyou Marble Valley Comment
  JEPS80548  Monardella purpurea Gilbert Muth 1965-8-12 209 Siskiyou Black Mountain, below summit rock Marble Mt. Wilderness Area 2072 Comment
  SEINET844345  Monardella purpurea J. M. Tucker, L. K. Mann, S. L. Holloway 1963-1 3754 Siskiyou Southwestern ridge of Black Marble Mountain, Marble Mountain Wilderness Area, California 2133 Comment
  RSA238375  Monotropa hypopitys Frederick W. Oettinger 1968-8-6 419 Siskiyou Along old Hancock Lake trail just before one descends into a clear view of the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  RSA262375  Monotropa hypopitys D. V. Hemphill 1974-7-28 s.n. Siskiyou Ca. 1/4 mile north of Jawbone Camp. Marble Mountain Wilderness Area. 1555 Comment
  JEPS94256  Montia dichotoma Vernon H. Oswald and Lowell Ahart 1998-6-11 9220 Siskiyou 5 mi n of Macdoel (Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Road and Highway 97); Butte Valley National Grassland 1295 Comment
  UC1101399  Montia fontana Herbert L. Mason 1948-7-18 13625 Siskiyou Grass Lake Comment
  HSC4452  Montia parvifolia William J. Ferlatte 1966-7-7 220 Siskiyou Big Flat across river from camp 1524 Comment
  CAS-BOT-BC267045  Muhlenbergia filiformis W. B. C. 1938-7-15 11221 a Siskiyou Mount Shasta. Above Bear Springs Comment
  CHSC66541  Nama lobbii Vernon H. Oswald 1996-7-12 8001 Siskiyou Everitt Memorial Hwy.(A10) E of Mt. Shasta city between mileposts 6 and 7. 1798 Comment
  JEPS1360  Nama lobbii W. L. Jepson 1940-6-30 20071 Siskiyou 6 mi e McCloud (Fowlers Camp, McCloud River); McCloud River, Fowlers Camp, e of McCloud 944 Comment
  RSA79002  Nama lobbii E. K. Balls, P. C. Everett 1952-10-13 18190 Siskiyou 10.2 miles northeast of town of Mt. Shasta, on John Everitt Memorial Highway to Mt. Shasta. 1829 Comment
  SD104873  Nama lobbii Darley F. Howe 1979-6-26 Siskiyou Road 1.0 mile north of Highway 89, 3.0 miles east of McCloud. 945 Comment
  UC618615  Nama lobbii W. Bridge Cooke 1938-6-17 11034 Siskiyou Sisson Southern trail , Sisson Southern Trail (Mount Shasta) 1371 Comment
  UC1001154  Narthecium californicum Dorothy Parker 1953-7-29 Siskiyou summit Scott Mt.; Siskiyou Mts., Scott Mt. Comment
  HSC30634  Navarretia divaricata Frederick W. Oettinger 1969-7-28 1091 Siskiyou Marble Mtn. Wilderness Area, N of Pine Lake 2012 Comment
  UC455653  Navarretia intertexta I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  POM74489  Navarretia intertexta Edward Palmer 1892-7-13 2451 Siskiyou Mt. Shasta and vicinity. Comment
  JEPS81653  Navarretia leucocephala subsp. minima L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2298 Siskiyou on US Hwy 97 0.8 mi s Bray junction; Murphy Wells 1493 Comment
  POM312620  Navarretia sinistra H. L. Mason 1948-7-17 13597 Siskiyou Eastern Grass Lake, in forested hills Comment
  POM216006  Nemophila parviflora var. austiniae Louis C. Wheeler 1935-5-5 3462 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  HSC39738  Nemophila pedunculata J. O. Sawyer 1970-4-3 2097 Siskiyou Along Sugar Creek 915 Comment
  POM73769  Nemophila pedunculata Geo. D. Butler 1910-5-7 1302 Siskiyou Fields near Yreka. Comment
  UC164455  Nicotiana attenuata Geo. D. Butler 1910-7-1 1618 Siskiyou near Yreka Comment
  UC163670  Nitrophila occidentalis Geo. D. Butler 1910-8-21 1849 Siskiyou Shasta Valley Comment
  HSC45574  Noccaea fendleri subsp. glauca Maralyn O'Meara 1974-5-25 436 Siskiyou On Rd. 8, 2.4 mi. W of junction with Hwy. 3 1006 Comment
  JEPS83878  Nothochelone nemorosa Wayne Roderick Jul 1976 Siskiyou along trail to Lily Pad Lake (vicinity of Cook and Green Pass, Siskiyou Mountains); Siskiyou Mountains 1463 Comment
  JEPS84196  Nothochelone nemorosa L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6315 a Siskiyou Indian Creek Road from Takilma to Happy Camp (just s of state line) Comment
  RSA211302  Nothochelone nemorosa William J. Ferlatte 1967-8-21 1076 Siskiyou Sawtooth Ridge between Caribou Basin and Little South Fork Lake. 2287 Comment
  UCD110210  Notholithocarpus densiflorus R. Tofsrud; J. M. Tucker 1948-8-3 1775 Siskiyou 6.7 miles (by road) below summit of Happy Camp-Waldo (Oregon) road. Comment
  UC221580  Oenothera elata subsp. hirsutissima H. E. Brown Jul 1 1897-Jul 15 1897 485 Siskiyou n side Mt. Shasta 1524 Comment
  CHSC26182  Oenothera villosa subsp. strigosa J. P. Kroessig 1977-8-5 47 Siskiyou Along e margin of Everitt Memorial Hwy., between hwy entrance and Penny Pines Plantation, ca. 3 km n of Mt. Shasta City. 1220 Comment
  RSA64022  Opuntia fragilis C. B. Wolf 1944-10-28 11477 Siskiyou East side of Little Shasta Valley at Coonrod Ranch (12 miles NE of Weed, then 8 miles N on road to Montague). Comment
  CHSC114078  Oreostemma alpigenum var. andersonii Jennifer Buck; Deborah Stout 2011-8-23 TL 03 A Siskiyou Middle Fork Sacramento River headwters, east slope of the Eddys, near Toad Lake; UTM Zone 10N, 542269E, 4570217N. 2065 Comment
  UC139217  Orobanche fasciculata R. M. Austin Aug 1878 251 Siskiyou Mount Eddy. Comment
  CAS-BOT-BC500187  Orobanche fasciculata W. R. Dudley 1893-6-1 s.n. Siskiyou Castle Crag Trail, near Mt. Shasta Comment
  HSC19209  Orthilia secunda J. O. Sawyer 1968-7-23 626 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  CAS-BOT-BC458081  Orthilia secunda W. R. Dudley 1899-8-24 s.n. Siskiyou Craggy Peak at Spring Comment
  NY90839  Orthocarpus copelandii E. B. Copeland 1903-8-18 s.n. Siskiyou Mt. Eddy 2133.6 Comment
  RSA237570  Orthocarpus cuspidatus subsp. copelandii Frederick W. Oettinger 1968-8-11 477 Siskiyou East of Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  RSA407988  Orthocarpus cuspidatus subsp. copelandii Louis C. Wheeler 1934-7-3 2858 Siskiyou Soda Creek, Sterling Mt. Siskiyou Mountains. 1677 Comment
  UC164259  Orthocarpus cuspidatus subsp. cuspidatus Geo. D. Butler 1909-6-22 930 Siskiyou foothills Goosenest Mountain; foothills of Goosenest Mountain Comment
  POM229936  Orthocarpus lacerus Louis C. Wheeler 1935-6-27 3611 Siskiyou Greenview, Scott Valley. 884 Comment
  RSA48232  Orthocarpus lacerus Roxana S. Ferris, Laura Lorraine 1948-6-12 11787 Siskiyou Scott Mountain Road south of Callahan. Comment
  HSC29190  Osmorhiza berteroi Frederick W. Oettinger 1969-7-10 952 Siskiyou Marble Mountain Wilderness Area, W of English Lake 1761 Comment
  HSC69011  Osmorhiza occidentalis Maralyn A. Renner 1980-7-24 2032 Siskiyou Lily Pad Lake 1768 Comment
  HSC76759  Osmorhiza occidentalis K. T. Stillman 1976-7-14 238 Siskiyou Marble Mtn. Wilderness Area Comment
  CAS-BOT-BC413214  Oxyria digyna Gilbert J. Muth 1969-8-6 1225 Siskiyou Boulder Peak Ridge Comment
  HSC2365  Oxyria digyna William J. Ferlatte 1966-8-19 442 Siskiyou Head of Kidd Creek 2287 Comment
  HSC92968  Oxyria digyna Jennifer Whipple 1976-7-25 1574 Siskiyou N face of Mt Eddy 2378 Comment
  CHSC102569  Packera cana L. P. Janeway 2009-8-4 9904 Siskiyou High Cascade Range. Mt. Shasta, north slope; 3.7 air km south-southwest of Northgate Trailhead. 2783 Comment
  CAS-BOT-BC316756  Packera cana Alice Eastwood 1912-8-30 2013 Siskiyou unspecified Comment
  RSA52141  Paeonia brownii Dorothy Parker 1948-5-18 s.n. Siskiyou West side of Scott Valley 915 Comment
  CAS-BOT-BC253767  Panicum capillare R. E. Frenkel 1964-7-15 692 Siskiyou On Everitt Memorial Highway, near Mount Shasta, 1.0 mile N of McCloud River RR crossing 1219 Comment
  UCSC004588  Panicum capillare Randall Morgan 2004-5-31 4177 Siskiyou Castle Crags State Park, Sacramento River Comment
  UCSC004596  Panicum capillare Randall Morgan 2004-8-3 4273 Siskiyou Castle Crags State Park, Sacramento River Comment
  HSC91998  Parnassia palustris Jennifer Whipple 1976-8-20 1721 Siskiyou Wagon Creek Drainage near Wagon Creek 2195 Comment
  CAS-BOT-BC175616  Parnassia palustris W. R. Dudley 1899-8-26 s.n. Siskiyou Upper Sacramento 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
  HSC73219  Paxistima myrsinites Gail Newton 1980-6-20 503 Siskiyou Near Bald Mtn. 1097 Comment
  POM87426  Paxistima myrsinites Geo. D. Butler 1908-8-5 20 Siskiyou West Fork of Wooley Creek. 1677 Comment
  RSA1654  Paxistima myrsinites C. B. Wolf 1930-10-22 1751 Siskiyou 3 miles S of Mt. Shasta City. Comment
  RSA47641  Paxistima myrsinites Roxana S. Ferris, Laura Lorraine 1948-6-12 11753 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  UC1299195  Paxistima myrsinites Freed W. Hoffman 1946-7-8 2592 Siskiyou n. of West Branch Camp (Waldo-Happy Camp Rd.); North Coast Ranges Comment
  UC133560  Paxistima myrsinites A. A. Heller 1905-6-5 7976 Siskiyou between Shasta Retreat Shasta Springs Comment
  UC869933  Paxistima myrsinites John Thomas Howell 1939-8-4 15056 Siskiyou near Spirit Lake; Marble Mts. Comment
  CAS-BOT-BC266642  Pedicularis bracteosa John Thomas Howell 1937-7-25 13457 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC19156  Pedicularis bracteosa var. flavida J. O. Sawyer 1969-7-24 1486 Siskiyou NE facing seep SW of Sugar Lake 1890 Comment
  HSC300  Pedicularis bracteosa var. flavida William J. Ferlatte 1966-8-17 387 Siskiyou Caribou Basin 1982 Comment
  CAS-BOT-BC266644  Pedicularis bracteosa var. flavida Lester Rowntree 1936-7-13 s.n. Siskiyou Granite Creek, Trinity Mountains 2133 Comment
  HSC639  Pedicularis densiflora William J. Ferlatte 1967-6-30 596 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  JEPS3356  Pedicularis racemosa H. W. Furlong Sept., 1901 Siskiyou Summit to Ager Comment
  JEPS11898  Pedicularis racemosa Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-12 4783 Siskiyou at summit of road between Takilma and Happy Camp (exactly at boundary of Siskiyou and Klamath National Forests) 1554 Comment
  CAS-BOT-BC69318  Pellaea brachyptera Alice Eastwood 1922-10-18 11541 Siskiyou Shasta Springs Comment
  UC371164  Pellaea brachyptera G. D. Butler 1908-7-20 248 Siskiyou w side Humbug Mt Comment
  CDA17133  Penstemon anguineus G. F. Hrusa 2001-6-6 15847 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
  UC1483515  Penstemon anguineus John Palmer 1980-8-13 757 Siskiyou near F.S. Rd. 47N44 (from Beaver Creek Road); Klamath National Forest, Condry Mtn. Quad., Dead Cow Creek 1615 Comment
  UC1560411  Penstemon anguineus E. Joyal and D. Mehlman 1988-6-25 1276 Siskiyou Happy Camp-Takilma road at turn-off to Bolan Lake; Happy Camp-Takilma Road at turn-off to Bolan Lake 1524 Comment
  CDA41886  Penstemon anguineus T. C. Fuller 1974-9-24 20029 Siskiyou Above Reeves Ranch Spring, south slope of the Siskiyou Mountains. 0 Comment
  RSA50222  Penstemon anguineus E. K. Balls 1949-7-9 13929 Siskiyou 7.6 miles from Etna on road to Sawyer's Bar. 915 Comment
  RSA233656  Penstemon davidsonii Robert F. Thorne, Frederick W. Oettinger 1969-8-10 39005 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  RSA309614  Penstemon davidsonii Walter Wisura 1983-9-16 3937 Siskiyou 5.9 mi W of western boundary of Lava Beds Nat'l Mon., along road to Tennant. Comment
  UC70415  Penstemon davidsonii var. davidsonii Milo S. Baker Aug 1894 Siskiyou Medicine Lake Comment
  HSC19139  Penstemon deustus J. O. Sawyer 1969-6-13 1110 Siskiyou Slope above Little Duck Lake 2134 Comment
  UCR37864  Penstemon deustus Mike Roantree, R. Bonning 1983-5-28 s.n. Siskiyou NW Callahan on Hwy 3, near marker 10.00 Comment
  HSC21012  Penstemon deustus D. M. Thomson 1965-8-7 179 Siskiyou Lava Beds National Monument, 1 mi. up cave loop road Comment
  HSC63257  Penstemon deustus M. A. Baker 1979-7-31 1098 Siskiyou Johnson's Hunting Ground, 0.4 k. N of trail to Independence Valley 2000 Comment
  RSA716056  Penstemon deustus var. suffrutescens L. Ahart 2005-6-9 12037 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  RSA34969  Penstemon gracilentus Roxana S. Ferris, Laura Lorraine 1941-8-11 10507 Siskiyou 3 miles from Medicine Lake on road to Modoc Lava Beds National Monument. Shasta National Forest. Comment
  RSA78992  Penstemon gracilentus E. K. Balls, Percy C. Everett 1952-10-12 18181 Siskiyou 7.2 miles SW of boundary of Lava Bed Nat'l Monument on road from Indian Well Ranger Station to Tennant. 1067 Comment
  SJSU6070  Penstemon humilis var. humilis R. W. Trivelpiece 1971-7-5 44 Siskiyou Little Shasta Cr c. 8 mi E of shasta Valley 1219 Comment
  UCR37542  Penstemon laetus subsp. sagittatus L. P. Janeway 1983-8-13 527 Siskiyou S side of upper S Fork Indian Creek 1311 Comment
  NY604559  Penstemon laetus var. sagittatus A. A. Heller 1905-6-9 8009 Siskiyou Montague Comment
  NY604568  Penstemon laetus var. sagittatus N. H. Holmgren 1980-7-1 9448 Siskiyou U.S. Highway 97, 8.7 km (5.4 miles) northeast of Weed. 1100 Comment
  UC1874902  Penstemon laetus var. sagittatus Karl A. Vincent 1987-6-28 4440 Siskiyou Cascade Range, Mt Shasta, along E side of US 97 ca 5.1 mi NE of jct. I-5 Bus. 1158 Comment
  UCD69102  Penstemon laetus var. sagittatus D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-11 s.n. Siskiyou Siskiyou: Mount Shasta-Shasta Peak. J. Everitt Memorial Highway. White fir forests (Castanopsio sempervirentis-Abietetum lowianae Rivas-Martinez and Sanchez-Mata 1997). 1520 Comment
  CHSC9487  Penstemon newberryi J. F. Goodwin 1971-7-3 137 Siskiyou West roadside, 7.7 mi. south of Mount Shasta Ski Bowl area. 1584 Comment
  UCD124305  Penstemon newberryi Dean William Taylor 1972-7-3 s.n. Siskiyou near Little Duck Lake. Comment
  NY627426  Penstemon newberryi var. berryi J. T. Howell 1937-7-26 13516 Siskiyou Caribou Basin, Salmon-Trinity Alps 1981.2 Comment
  UC164348  Penstemon parvulus Geo. D. Butler 1910-7-8 1669 Siskiyou Shackleford Creek 1371 Comment
  CHSC114659  Penstemon parvulus J. Kierstead 1990-7-18 90 -108 Siskiyou Shasta-Trinity National Forests. Forest Service Rd. 40N26 at Gumboot/Mumbo Basin pass. 1950 Comment
  NY629972  Penstemon parvulus A. R. Kruckeberg 1972-6-10 6211 Siskiyou Between Cook and Green Pass and Red Butte Comment
  UC1238923  Penstemon parvulus Freed W. Hoffman 1950-7-11 3485 Siskiyou Cedar Camp road 19.5 mi from Klamath Highway (western Siskiyou County); North Coast Ranges Comment
  UC130602  Penstemon procerus var. brachyanthus H. M. Hall 1909-7-28 8672 Siskiyou head of Salmon River Salmon Mountains, head of Salmon River 1645 Comment
  JEPS11568  Penstemon procerus var. formosus Annie M. Alexander and Louise Kellogg 1911-8-14 327 Siskiyou Mt. Eddy Comment
  NY650119  Penstemon roezlii F. W. Pennell 1940-7-20 26206 Siskiyou Route 89, west of Dead Horse Summit, east of Bartle 1158.2 Comment
  HSC26146  Penstemon rupicola J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5687 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  CAS-BOT-BC6686  Penstemon rydbergii var. varians David Daniels Keck 1940-6-13 5172 Siskiyou Grass Lake 1540 Comment
  POM43271  Penstemon shastensis Geo. D. Butler 1910-6-19 1591 Siskiyou Goosenest foothills. 1524 Comment
  SEINET13761771 Image available Penstemon speciosus R. R. Halse 2016-5-29 9721 Siskiyou Along Hilt Road, E of Hilt by its intersection with I-5. 939 Comment
  SEINET7073528  Penstemon speciosus A. G. Vestal 1963-6-1 s.n. Siskiyou Southeast of Dwinnell Reservoir (Lake Shastina) about 3.6 miles northwest of Rout 97. UTM Zone 10, 549041mN, 4591197mN. Coordinate datum: NAD27. Comment
  UC1312906  Perideridia bolanderi subsp. bolanderi L. Constance and T. I. Chuang 1967-7-22 3801 Siskiyou 4 mi s Callahan (n slope of mt.); Scott Mountain 1371 Comment
  SEINET10693779 Image available Perideridia leptocarpa Lincoln Constance, Fei, Mei Chuang; Mario Sousa S. 1966-6-15 Constance 3768 Siskiyou West-facing slope above Trinity River 5 miles north-west of Cecilville. 762 Comment
  UC1390009  Perideridia leptocarpa T. I. Chuang, I. Fukuda, and A. Weston 1963-7-6 5879 Siskiyou 3 mi n Cecilville Comment
  CDA38506  Perideridia oregana D. H. Shaw 1982-7-15 s.n. Siskiyou Bogus Creek Area, near Montague. 0 Comment
  HSC401  Perideridia parishii subsp. latifolia William J. Ferlatte 1967-8-17 946 Siskiyou Yellow Rose Mine 1982 Comment
  UC1351727  Perideridia parishii subsp. latifolia W. J. Ferlatte 1966-8-16 371 Siskiyou between campground and S. Fork of Salmon R.; Trinity Alps, Big Flat 1524 Comment
  UC618605  Perideridia parishii subsp. latifolia W. Bridge Cooke 1938-7-22 11313 Siskiyou Wagon Camp Mount Shasta 1737 Comment
  CAS-BOT-BC423351  Peritoma platycarpa A. A. Heller 1927-8-2 14440 Siskiyou North end of Shasta Valley, near the Klamath River Comment
  HSC64440  Persicaria amphibia J. P. Smith, Steve Selva 1970-8-8 4558 Siskiyou Juanita Lake Comment
  HSC17494  Persicaria amphibia R. C. Wunner 1965-8-24 478 Siskiyou Lava Beds NM, Capt. Jacks Stronghold Entrance 1220 Comment
  CAS-BOT-BC413738  Persicaria hydropiper Louis C. Wheeler 1934-9-20 3287 Siskiyou Klamath National Forest, Lumgrey Cr. 670 Comment
  CAS-BOT-BC418939  Persicaria lapathifolia Carl B. Wolf 1927-8-26 990 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CAS-BOT-BC330263  Petasites frigidus var. palmatus H. A. Thomas; J. H. Thomas 1954-7-23 4469 Siskiyou Salmon - Trinity Mts. Abouty 6 miles SE of Cecilville. Vicinity of Blind Horse Creek. 1036 Comment
  RSA0003819  Phacelia cookei L. R. Heckard, Constance, Ornduff 1969-6-24 2294 Siskiyou N of Mt. Shasta, junc. of old Military Pass Rd. and U.S. Hwy. 97. Comment
  HSC30735  Phacelia corymbosa Glenn McGourty 1974-5-25 68 Siskiyou On Rd. 8, 0.9 mi. from jct. with Hwy. 3 976 Comment
  JEPS2783 Image available Phacelia corymbosa W. L. Jepson 1914-8-13 6161 Siskiyou Dunsmuir 670 Comment
  UC164114  Phacelia corymbosa Geo. D. Butler 1910-5-4 1280 Siskiyou dry hill near Yreka Comment
  JEPS76146  Phacelia dalesiana Susan Horner 1977-6-1 110 Siskiyou 4 mi ne Scott Mt. (trail from Robbers Meadows to Kangaroo Lake) Comment
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Jul 5 2017
  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
  HSC66244  Phacelia greenei Maralyn A. Renner 1980-6-9 833 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  SEINET5763105  Phacelia greenei L. Constance, H. L. Moon, J. F. Davidson, J. M. Tucker 1947-5-17 3200 Siskiyou Scott Mountain, summit of northwest spur. 1829 Comment
  CHSC97391  Phacelia hastata subsp. hastata Jenny Marr 2006-6-18 227 Siskiyou Cascade Range High. Plants collected along Hwy. 97. 1524 Comment
  RSA12604  Phacelia heterophylla subsp. virgata Carl B. Wolf 1934-7-6 5982 Siskiyou 1/4 mile east of Mt. Shasta City. Southwest slope of Mt. Shasta. 1098 Comment
  UC164135  Phacelia heterophylla subsp. virgata Geo. D. Butler 1908-6-23 409 Siskiyou near Yreka (along creek) Comment
  UC718170  Phacelia heterophylla subsp. virgata Carl B. Wolf 1934-7-6 5982 Siskiyou 1/4 mi e Mt. Shasta City (sw slope of mt.); Mt. Shasta 1097 Comment
  HSC42397  Phacelia heterophylla subsp. virgata Rich White 1977-5-21 72 Siskiyou Junction of Miners Creek Rd. and Rd. 8 , 5.5 mi. W of Callahan. Comment
  RSA211171  Phacelia humilis var. humilis W. J. Ferlatte 257 Siskiyou Mountain Meadow Ranch. 1524 Comment
  CHSC70138  Phacelia mutabilis Jennifer Whipple 1976-7-8 1350 Siskiyou Mount Eddy, Klamath Mountains. Dry slopes and meadows southwest of Dobkins Lake along the drainage into the lake. 2225 Comment
  HSC69027  Phacelia mutabilis Maralyn A. Renner 1980-7-28 2186 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  POM73588  Phacelia mutabilis Geo. D. Butler 1908-8-8 408 Siskiyou Marble Mountain. 1829 Comment
  RSA238766  Phacelia mutabilis Frederick W. Oettinger 1967-8-13 258 Siskiyou Just below Tom Taylor Cabin Spring. The Salmon Mountains; the High Lakes Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  RSA238770  Phacelia mutabilis Frederick W. Oettinger 1968-8-16 546 Siskiyou On Little Medicine Mountain due N of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1982 Comment
  JEPS1092  Phacelia procera W. L. Jepson 1937-7-30 18562 Siskiyou Poker Flat western Siskiyou Mts. Comment
  POM74214  Phacelia procera Geo. D. Butler 1910-7-8 1679 Siskiyou Shackleford Creek. 1524 Comment
  CHSC93535  Phacelia ramosissima var. ramosissima Lowell Ahart; John Dittes 2005-6-10 12084 Siskiyou Under a juniper tree, about 50 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  RSA715804  Phacelia ramosissima var. ramosissima L. Ahart, John Dittes 2005-6-10 12084 Siskiyou About 50 yards southeast of the pump house along the Shasta River, about 1.9 air miles south of Highway 99/97 cutoff, about 6 air miles ESE of Grenada. 777 Comment
  HSC67974  Philadelphus californicus J. P. Smith, Steve Selva 1970-6-14 3890 Siskiyou 1 mi. E of Steinacher Creek Rd. on Rd. to Forks of Salmon Comment
  CAS-BOT-BC77430  Philadelphus lewisii H. A. Thomas; J. H. Thomas 1954-7-22 4443 Siskiyou Salmon-Trinity Mts., about 6 miles SE of Cecilville; between Rush and Big Bend Creeks, 975 Comment
  CHSC57434  Philadelphus lewisii L. P. Janeway 1984-6-21 858 Siskiyou Garvey Bar, south side of Klamath River just east of Humbug Point. On flat above river. 594 Comment
  CAS-BOT-BC250788  Phleum alpinum Jason Swallen 1939-7-26 13750 Siskiyou Mount Shasta. Above Panther Creek Meadows Comment
  HSC77101  Phleum alpinum K. T. Stillman 1976-7-30 339 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  SEINET10657448  Phleum alpinum A. Arthur Heller 1922-7-15 Heller 13710 Siskiyou Damp meadow at Medicine Lake in the Canadian zone 2134 Comment
  CAS-BOT-BC250948  Phleum pratense William A. Dayton 1912-7-28 165 Siskiyou Shasta National Forest, Ash Creek Sink 1219 Comment
  HSC30605  Phleum pratense Frederick W. Oettinger 1968-9-5 738 Siskiyou Bear Meadow., Tom's Lake region. 2188 Comment
  RSA161689  Phlox adsurgens Lee W. Lenz 1961-6-22 24361 Siskiyou 15 miles N of Happy Camp, road to O'Brien Comment
  SEINET7041249  Phlox adsurgens Barbara L. Wilson 1994-5-27 6916 Siskiyou Trailhead for New London Trail, between road 1050 (Elliott Creek Road) and the creek, at the parking area. Comment
  UC1190247  Phlox diffusa Ira L. Wiggins 1955-7-27 13541 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  POM258057  Phlox diffusa subsp. diffusa C. L. Hitchcock, J. S. Martin 1939-7-7 5274 Siskiyou Whiskey Lake, 1/2 mile above Camp Chicago, on Sanger Peak Trail 1463 Comment
  RSA183673  Phlox diffusa subsp. diffusa Gilbert Muth 1965-8-6 184 Siskiyou Marble Mountains; backside of Black Mountain Comment
  RSA237978  Phlox diffusa subsp. subcarinata Frederick W. Oettinger 1968-8-19 586 Siskiyou English Peak Gap. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  UC880428  Phlox douglasii subsp. rigida L. E. Smith 1913-1 Siskiyou Mt. Shasta Comment
  UC163991  Phlox gracilis Geo. D. Butler 1910-3-28 1148 Siskiyou Yreka Comment
  POM75054  Phlox hirsuta Geo D. Butler 1910-4-10 1165 Siskiyou Yreka. Comment
  SEINET3145518  Phlox hoodii subsp. canescens G. D. Butler 1910-3-13 1127 Siskiyou Klamath hills Comment
  UC585201  Phlox speciosa subsp. nitida E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2014 Siskiyou about 1.5 mi w Mt. Shasta City (e and ne slope of spur of Rainbow Ridge, above Sulloway Creek); Rainbow Ridge 1188 Comment
  UC23965  Phlox speciosa subsp. nitida C. B. Bradley 1879-1 Siskiyou Comment
  UC1186128  Phlox speciosa subsp. occidentalis Herbert L. Mason 1929-5-18 5331 Siskiyou s of Yreka Comment
  POM253610  Phlox speciosa subsp. occidentalis C. L. Hitchcock, J. S. Martin 1939-7-7 5272 Siskiyou Sanger Peak Trail. 1 mile S of Camp Chicago. Siskiyou Mtns ca 12 miles S of Takilma, Orgeon. 1433 Comment
  CAS-BOT-BC135021  Phoradendron bolleanum Louis C. Wheeler 1934-6-26 2789 Siskiyou Camp Lowe, Klamath River, Siskiyou Mts. 762 Comment
  JEPS107652  Phoradendron densum Lowell Ahart, John Dittes 2005-6-10 12068 Siskiyou South of a poor dirt road, about 90 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS42560  Phoradendron densum Geo. M. Pendleton 1917-1 Siskiyou Sisson Comment
  UC1039907  Phoradendron pauciflorum Geo. M. Pendleton 1917-1 Siskiyou Sisson Comment
  SBBG14309  Phyllodoce breweri J. Major 1961-7-14 633 Siskiyou Panther Meadows Cmpgrd, Mount Shasta 2270 Comment
  CAS-BOT-BC384651  Phyllodoce empetriformis Andrew Townesmith; Karen M. Meyer 2007-7-30 875 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-BC56502  Phyllodoce empetriformis Geo. B. Grant 1902-9-7 s.n. Siskiyou Horse Camp, Mt. Shasta, N. Cal. 2438 Comment
  HSC759  Phyllodoce empetriformis William J. Ferlatte 1966-8-5 352 Siskiyou Caribou Mtn. 2470 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
  CAS-BOT-BC140489  Physocarpus Alice Eastwood 1917-9-2 6651 Siskiyou Shasta Springs Comment
  CAS-BOT-BC140593  Physocarpus capitatus Grant 1902-9-13 5182 Siskiyou Dunsmuir Comment
  CAS-BOT-BC78161  Picea breweriana W. R. Dudley 1901-8-18 s.n. Siskiyou Salmon Mountains Comment
  CAS-BOT-BC78178  Picea breweriana L. E. Berriman 1941-1-1 s.n. Siskiyou North slopes of Russian Peak; west of Callahan 2133 Comment
  JEPS48371  Picea breweriana W. L. Jepson 1907-7-6 2847 Siskiyou Marble Mt. region Marble Mt. 1828 Comment
  NY30478  Picea breweriana F. M. Ownbey 1940-7-6 2205 Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM267223  Picea breweriana Marion Ownbey, Fred G. Meyer 1940-7-6 2205 Siskiyou Marble Mountain, summit of Cayenne Ridge on W side. Comment
  CAS-BOT-BC73428  Picea breweriana unspecified 1912-10-1 s.n. Siskiyou Marble Mt. Comment
  UC1061686  Picea breweriana Frank A. Graham 1924-10-1 Siskiyou 1 mi e Salmon Summit Mine (headwaters of creek); Knownothing Creek 1767 Comment
  HSC77150  Pinguicula macroceras L. P. Janeway 1983-7-24 454 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  HSC101731  Pinus albicaulis Michael Kauffmann, Jeffrey Kane 2013-7-24 16 Siskiyou Ridgeline within the Antelope Creek RNA 2186 Comment
  RSA237340  Pinus albicaulis Frederick W. Oettinger 1966-8-27 51 Siskiyou South side of East Boulder Lake in the Scott Mountains, Salmon-Trinity Alps Wilderness. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  UCD134319  Pinus albicaulis Robert E. Preston 2001-6-30 1649 d Siskiyou Klamath National Forest, Rainbow Mountain, north slope of east lobe. 1920 Comment
  UC618592  Pinus attenuata W. Bridge Cooke 1938-8-19 11534 Siskiyou below Wagon Camp (s and se slopes); Mount Shasta 1676 Comment
  UC1349434  Pinus attenuata H. Bowerman 1942-11-7 8676 A Siskiyou e slope of dry ridge Siskiyou National Forest Comment
  UC1980216  Pinus balfouriana Ron Mastrogiuseppe, Joy Mastrogiuseppe August 1975 s.n. Siskiyou SISKIYOU CO.: Klamath National Forest, Lake Mountain. Comment
  CAS-BOT-BC78498  Pinus contorta subsp. murrayana Alice Eastwood s.n. Siskiyou bet. Shasta Sprgs. + Cantara Comment
  CAS-BOT-BC78716  Pinus jeffreyi W. R. Dudley 1901-8-26 s.n. Siskiyou Salmon Mountains Comment
  CAS-BOT-BC78717  Pinus jeffreyi J. M. Tucker 1963-8-18 3768 Siskiyou between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area 2103 Comment
  MACF017420  Pinus jeffreyi Trudy R. Ericson 1974-8-8 220 Siskiyou St. Hwy. 96, between Happy Camp and Hamburg, near Seiad Valley Comment
  CAS-BOT-BC73092  Pinus lambertiana A. A. Heller 1915-8-26 12253 Siskiyou Metcalf's ranch at the foot of Mt. Eddy. 1188 Comment
  HSC1511  Pinus lambertiana R. C. Wunner 1965-8-21 464 Siskiyou California Lava Beds National Monument; 1/4 mile from Caldwell Butte towards Caldwell Ice Cave 1402 Comment
  HSC45031  Pinus lambertiana Maralyn O'Meara 1974-5-25 394 Siskiyou Along road to Duck Lakes trail 1402 Comment
  UC401392  Pinus lambertiana Geo. D. Butler 1908-8-5 520 Siskiyou Cold Spring Woolly<?> Creek Comment
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Nov 25 2011
  CAS-BOT-BC78952  Pinus monticola John Thomas Howell 1937-7-29 13666 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  HSC32581  Pinus monticola Steven Lagos 1974-5-26 84 Siskiyou Little Duck Lake and the ridge above it, Bulk Collection # 64 2073 Comment
  HSC44632  Pinus monticola Jerome Peterson 1978-5-20 19 Siskiyou Haypress Meadow, Bulk Collection # 133 Comment
  HSC69371  Pinus monticola J. O. Sawyer, J. Cole 1980-7-19 3673 Siskiyou N and W of Little Mt. Hoffman 1982 Comment
  UC401412  Pinus ponderosa Geo. D. Butler 1910-4-24 1237 Siskiyou Quartz Valley Comment
  UC1190184  Piperia transversa Ira L. Wiggins 1955-7-24 13483 Siskiyou between upper reaches of China and Blind Horse Creeks 1234 Comment
  RSA211308  Piperia unalascensis William J. Ferlatte 1967-7-26 742 Siskiyou Caribou Basin. Ridge west of Big Caribou Lake. Steep slope with talus and solid rock outcrops. Trinity Alps. 2134 Comment
  UC725971  Plagiobothrys A. A. Heller 1929-5-4 14859 Siskiyou Yreka Comment
  JEPS101569  Plagiobothrys hispidulus Dean W. Taylor 1999-6-9 17242 Siskiyou Agate Flat, 0.3 miles S of Oregon State Line 1005 Comment
  JEPS32026  Plagiobothrys hispidus W. B. and V. G. Cooke 1963-7-10 34273 Siskiyou n side Mt. Shasta (in Bolam logging road); , Bolam 2133 Comment
  UC195644  Plagiobothrys hispidus I. J. Condit 1911-7-22 Siskiyou Sisson Comment
  UC164106  Plagiobothrys nothofulvus Geo. D. Butler 1910-4-10 1164 Siskiyou near Yreka Comment
  HSC46221  Plagiobothrys shastensis Jennifer Whipple 1978-6-5 2331 Siskiyou Weston Gulch in Scott Valley 854 Comment
  JEPS68126  Plagiobothrys tenellus George D. Butler 1909-4-13 654 Siskiyou near Yreka Comment
  CHSC91387  Plantago lanceolata Lowell Ahart; John Dittes 2005-6-10 12118 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
  HSC22310  Platanthera dilatata var. leucostachys J. O. Sawyer 1969-7-26 1584 Siskiyou SE facing slope near S Sugar Creek 1700 Comment
  HSC61845  Platanthera dilatata var. leucostachys Ruby Van Deventer 1938-7-9 Siskiyou Poker Flat 1585 Comment
  RSA120506  Platanthera leucostachys S. S. Tillett 1956-7-6 657 Siskiyou Masterson Meadows, E side of Scott Mtn, Siskiyou-Trinity county line, ca. 8 miles SE of Callahan. 1890 Comment
  UC61048  Plectritis brachystemon W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Mount Shasta, Sisson Mount Shasta; , Sisson Comment
  UC999839  Plectritis congesta S. C. Dyal 1938-6-12 716 Siskiyou California Comment
  HSC43855  Plectritis macrocera Maralyn O'Meara 1974-5-25 378 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  CAS-BOT-BC458196  Pleuricospora fimbriolata Ira L. Wiggins 1955-7-24 13492 Siskiyou Ridge between upper reaches of China and Blind Horse Creeks 1645 Comment
  RSA184792  Poa Gilbert Muth 1966-7-17 403 Siskiyou Trail to lookout, Marble Mts. 1829 Comment
  RSA31172  Poa A. A. Heller 1905-6-19 8070 Siskiyou Grenada Station, Along railroad Comment
  RSA484227  Poa M. B. Dunkle 1945-1 9325 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  UCD92192  Poa AHM 1955-7-27 55 E Siskiyou Klamath National Forest. Marble Mountains. Pierce's Draw Meadow. 1676 Comment
  CAS-BOT-BC254783  Poa bolanderi A. A. Heller 1914-8-28 11736 Siskiyou On the E side of Mount Eddy 2438 Comment
  CAS-BOT-BC254993  Poa bulbosa Morris Halperin 1930-7-11 309 Siskiyou Railroad Station, Montague Comment
  CAS-BOT-BC255001  Poa bulbosa L. E. Smith 1915-5-1 s.n. Siskiyou Yreka Comment
  UC450463  Poa bulbosa Morris Halperin 1930-5-17 303 Siskiyou Yreka 800 Comment
  UCD90673  Poa bulbosa Morris Halperin 1931-4-28 325 Siskiyou near Eureka. Schumacher's Ranch (Geo. Gray). Comment
  HSC76674  Poa glauca subsp. rupicola K. T. Stillman 1976-7-21 281 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  CAS-BOT-BC247010  Poa nervosa Douglas Barbe 1955-8-1 331 Siskiyou Summit, Mt. Bolivar, Scott Mts. 2468 Comment
  CAS-BOT-BC256022  Poa pratensis John Thomas Howell 1980-4-28 53368 Siskiyou Grenada 792 Comment
  HSC30579  Poa pratensis Frederick W. Oettinger 1969-8-14 1374 Siskiyou Marble Mtn. Wilderness Area, English Lake. 1936 Comment
  RSA602816  Poa pratensis L. C. Wheeler 1935-6-4 3549 Siskiyou Etna, Scott Valley 899 Comment
  CAS-BOT-BC247525  Poa pringlei Gilbert J. Muth 1969-8-10 1309 Siskiyou Ridge west of Boulder Peak Comment
  JEPS82332  Poa pringlei Roger Raiche 1983-8-13 30595 Siskiyou summit area Mt Eddy 2743 Comment
  POM228868  Poa secunda L. C. Wheeler 1935-6-30 3635 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  CAS-BOT-BC243242  Poa secunda subsp. secunda Louis C. Wheeler 1934-8-9 3076 Siskiyou Jaynes Canyon, Klamath Forest 1920 Comment
  UC1025012  Poa secunda subsp. secunda Leo Whitney 1935-7-15 3485 Siskiyou 2 mi se Medicine Lake (Bullseye Lake) Comment
  UCD23603  Poa secunda subsp. secunda Geo. D. Butler 1910-4-30 1250 Siskiyou Yreka. Comment
  HSC30560  Poa wheeleri Frederick W. Oettinger 1969-9-4 1666 Siskiyou Salmon Mtns., S side of Tobacco Lake. 1829 Comment
  UCD91574  Poa wheeleri Beecher Crampton 1956-8-22 3855 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  CAS-BOT-BC244324  Podagrostis humilis W. B. C. 1938-9-17 11695 Siskiyou Mount Shasta. Water Supply Spring, Horse Camp, Hudsonian Comment
  JEPS100991  Pogogyne zizyphoroides Dean Wm. Taylor with Glenn Clifton 1990-6-11 10870 Siskiyou 2.5 miles NE Abobe Flat Reservoir (ca. 5 miles N of Timbered Creter), just west of right of way of Pacific Gas Pipeline. 1341 Comment
  CHSC1308  Polemonium carneum V. Holt 1941-6-1 Siskiyou Siskiyou mountains. Comment
  UC107059  Polemonium carneum Thos. Howell 1889-5-10 1381 Siskiyou Hornbrook Comment
  CHSC71309  Polemonium micranthum Vernon H. Oswald; Lowell Ahart 1998-6-11 9218 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
  UC164116  Polemonium micranthum Geo. D. Butler 1909-3-16 551 Siskiyou near Yreka; near Yreka Comment
  POM301665  Polemonium pulcherrimum Marion Ownbey, Fred G. Meyer 1940-7-4 2186 Siskiyou On ridge above head of Brewer Creek, east side of Mt. Shasta. Comment
  POM365428  Polemonium pulcherrimum L. C. Wheeler 1934-8-9 3081 Siskiyou Head of Jaynes Canyon. Siskiyou Mts. (Mt. Diablo Mer.) 1921 Comment
  UCR5684  Polygala cornuta O. F. Clarke 1966-8-6 660806- 01 Siskiyou 18 mi. north of Castella on turn out 1162 Comment
  CAS-BOT-BC170328  Polygala cornuta var. cornuta Alice Eastwood 1922-10-18 11525 Siskiyou Shasta Springs Comment
  CAS-BOT-BC170343  Polygala cornuta var. cornuta Marion Ownbey; Fred G. Meyer 1940-7-3 2164 Siskiyou 7 miles northwest of McCloud Comment
  UC163658  Polygonum davisiae Geo. D. Butler 1910-7-8 1677 Siskiyou Shackleford Creek 1828 Comment
  CAS-BOT-BC414593  Polygonum douglasii Alice Eastwood 1921-7-24 10774 Siskiyou Castle Lake Comment
  POM104495  Polygonum douglasii Geo. D. Butler 1910-7-31 1803 Siskiyou Summer Fallow Fish near Yreka Comment
  UC375151  Polygonum douglasii subsp. douglasii Geo. D. Butler 1908-8-8 186 Siskiyou West Fork of Woolly Creek; head Comment
  JEPS105006  Polygonum douglasii subsp. johnstonii Dean W. Taylor 1995-6-4 14966 Siskiyou 3 miles west of Highway 89 on Grenada Road; Shasta Valley; Klamath National Forest; (ca. 10 miles North of Weed) 1158 Comment
  CAS-BOT-BC418591  Polygonum minimum Doris K. Kildale 1930-8-24 9051 a Siskiyou Rattlesnake Meadow, trail to Preston Peak 1676 Comment
  JEPS77491  Polygonum polygaloides subsp. confertiflorum Susan Horner 1978-6-30 414 a Siskiyou about 4 mi sse of Hambone (road between 40N05 and Sand Flat Well, about 22 air mi ene of McCloud); ; 40N3E30 Comment
  HSC92959  Polygonum polygaloides subsp. kelloggii Jennifer Whipple 1978-10-6 2421 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  CAS-BOT-BC420073  Polygonum polygaloides subsp. kelloggii Doris K. Kildale 1928-7-4 5528 Siskiyou 1 1/2 miles east of summit between Salmon River & Etna. Comment
  UC672954  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-8-1 14401 Siskiyou on ridge between Salmon River and New River (at extreme head of Knownothing Creek); Rock Lake 1889 Comment
  SEINET10848475  Polygonum shastense Andrew Townesmith, Karen M. Meyer 2007-7-30 Townesmith 867 Siskiyou Shasta-Trinity National Forest. At the upper end of county road A10, mile 13.8 (from beginning of road in Mount Shasta City, 12.7 miles from National Forest boundary sign). Highest vehicle accessible point on Mount Shasta. T41N R3W S33 NW 1/4. 2399 Comment
  HSC69311  Polystichum imbricans Maralyn A. Renner 1980-7-24 1971 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  RSA239011  Polystichum imbricans Frederick W. Oettinger 1966-7-25 37 Siskiyou Along Timber Gulch stream bank, Klamath Natinal Forest, Colville. 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
  UC1495276  Polystichum imbricans subsp. imbricans Robert T. Clausen and Harold Trapido 1940-7-26 4961 Siskiyou Mud Creek, e side of canyon Mt. Shasta; So. Cascade Mts., Sacramento River Basin 1706 Comment
  CAS-BOT-BC76774  Polystichum imbricans subsp. imbricans A. A. Heller 1905-6-17 8061 Siskiyou Near the source of the Sacramento River west of Sisson. Comment
  CAS-BOT-BC482441  Polystichum kruckebergii Dana York 2011-8-12 3046 Siskiyou Marble Mountain Wilderness, Klamath National Forest, NE-facing slope of Marble Mountain 2065 Comment
  HSC75353  Polystichum kruckebergii J. O. Sawyer, M. Mesler 1980-8-11 4037 Siskiyou Along Pacific Crest Trail just N of Jump Off in the Marble Mtn. Wilderness area Comment
  UC150386  Polystichum lemmonii Dr. E. B. Copeland 1903-8-18 3814 Siskiyou Mt. Eddy 1676 Comment
  HSC1147  Polystichum lonchitis Dorothy Parker 1949-7-10 336 Siskiyou Above Paradise Lake, Salmon Mtn. 1982 Comment
  JEPS109823  Polystichum lonchitis Dean W. Taylor 2005-7-12 19386 Siskiyou Dry Creek Peak, cirque on north side of the peak (ca. 12 air miles NE of summit of Mt. Shasta) 1950 Comment
  OBI1444  Polystichum lonchitis Lawrence L. Kiefer 1963-8-9 732 Siskiyou Castle Lake, south end 2134 Comment
  CAS-BOT-BC72512  Polystichum scopulinum Louis C. Wheeler 1934-8-6 3059 Siskiyou Klamath National Forest, Rock Gulch 1828 Comment
  RSA237998  Populus tremuloides Frederick W. Oettinger 1968-8-17 558 Siskiyou N of Pine Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  UC54209  Populus tremuloides H. M. Hall and E. B. Babcock June, 1903 4080 Siskiyou along streams in Shasta Valley Shasta Valley (Mount Shasta); , Shasta Valley 914 Comment
  CAS-BOT-BC102957  Populus trichocarpa Alice Eastwood 1917-9-2 6670 Siskiyou Shasta Springs Comment
  UC845952  Populus trichocarpa W. Bridge Cooke 1942-7-2 16363 Siskiyou bed of Mud Creek Canyon above the Dam Mount Shasta; , bed of Mud Creek Canyon Comment
  SEINET10836817  Potamogeton filiformis var. alpinus Katherine L. Morris 1973-6-2 Morris 345 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy 263. Comment
  UC114325  Potentilla breweri Thomas Howell Siskiyou Hornbrook Comment
  HSC86548  Potentilla drummondii D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  CAS-BOT-BC143256  Potentilla flabellifolia A. A. Heller 1922-7-3 13678 Siskiyou On the slope above the head of Wagon Creek, on Mt. Eddy 2560 Comment
  HSC18934  Potentilla flabellifolia J. O. Sawyer 1969-7-25 1537 Siskiyou NE facing upper slope above Sugar Lake 2104 Comment
  CAS-BOT-BC540559  Potentilla gracilis var. fastigiata A. A. Heller 1918-7-16 13030 Siskiyou Mt. Eddy west of Sisson 2651 Comment
  CAS-BOT-BC540560  Potentilla gracilis var. fastigiata A. A. Heller 1918-7-16 13030 Siskiyou Mt. Eddy west of Sisson 2651 Comment
  CAS-BOT-BC540570  Potentilla gracilis var. fastigiata Alice Eastwood 1912-7-15 1110 Siskiyou McCloud Comment
  RSA85694  Potentilla gracilis var. fastigiata E. E. Stanford 1930-8-14 2079 Siskiyou Below summit of Sonora Pass. 2896 Comment
  UC60973  Potentilla gracilis var. flabelliformis Geo. B. Grant September 1902 5086 Siskiyou Sisson Mount Shasta, Sisson 914 Comment
  CHSC86637  Poteridium annuum Jenny Marr 1993-7-1 20 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA211268  Primula suffrutescens William J. Ferlatte 1966-8-17 399 Siskiyou Caribou Basin, Sawtooth Ridge. 2043 Comment
  CAS-BOT-BC516388  Prosartes hookeri Alice Eastwood 1921-7-31 s.n. Siskiyou Shasta Springs Comment
  RSA68936  Prunella vulgaris var. lanceolata A. E. Culbertson 1943-7-17 22 Siskiyou Near Forest Service Camp Grd. about a mile downstream from Castle Lake on road to town of Shasta; on north slope of a 6600 eastern spur of Trinity Mts. and 1500 above Sacramento R., within 9 air miles of its headwaters to the west., Mt. Shasta 13 miles to NE 1524 Comment
  UC449932  Prunella vulgaris var. lanceolata Annie M. Alexander and Louise Kellogg 1911-7-16 248 Siskiyou S. Fk. Salmon R. <South Fork Salmon River> 1524 Comment
  CAS-BOT-BC158203  Prunus emarginata A. A. Heller 1920-8-12 13511 Siskiyou Two miles from Sisson on the Mt. Shasta trail Comment
  CAS-BOT-BC158236  Prunus emarginata Doris K. Kildale 1928-7-4 5516 Siskiyou Summit of Divide between Salmon River & Scott Valley Comment
  CDA26147  Prunus emarginata M. S. Bergseng 1959-5-12 2362 Siskiyou North of Dunsmuir, Mt. Shasta region. 0 Comment
  HSC19189  Prunus emarginata J. O. Sawyer 1968-9-13 649 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 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-BC151227  Prunus virginiana var. demissa Wm. Bridge Cooke 1938-8-5 11443 Siskiyou MacBride Springs - Mount Shasta 1524 Comment
  CAS-BOT-BC151232  Prunus virginiana var. demissa Gilbert Muth 1966-7-17 411 Siskiyou Marble, south of camp, Marble Mts. 1792 Comment
  CAS-BOT-BC151234  Prunus virginiana var. demissa L. E. Smith 1912-7-1 s.n. Siskiyou Weed Comment
  JEPS44926  Prunus virginiana var. demissa W. L. Jepson July, 1894 13839 Siskiyou Sisson Comment
  RSA237590  Prunus virginiana var. demissa Frederick W. Oettinger 1968-9-5 702 Siskiyou SE slope above English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. Comment
  UC52251  Prunus virginiana var. demissa W. T. Mooney May 1903 Siskiyou Yreka Comment
  JEPS25881  Pseudognaphalium stramineum Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7479 Siskiyou 4 mi above Oak Bottom guard station ((or 5 mi above and se of Somes Bar)); Salmon River gorge 274 Comment
  UCD91516  Pseudoroegneria spicata W. E. Moon 1958-5-29 s.n. Siskiyou Along State Hwy. 97, 12 miles NE of Weed. Comment
  POM206523  Pseudoroegneria spicata subsp. spicata E. B. Copeland 1903-7-4 3542 Siskiyou Klamathon Comment
  UC54247  Pseudotsuga menziesii var. menziesii H. M. Hall and E. B. Babcock 1903-6-1 4077 Siskiyou near, n of Sisson Upton; Sierra Nevada, Mount Shasta 1219 Comment
  UC399468  Pteridium aquilinum var. pubescens Geo. D. Butler 1910-6-6 1462 Siskiyou Quartz Valley Quartz Valley Comment
  HSC30661  Pteridium aquilinum var. pubescens Frederick W. Oettinger 1968-8-14 513 Siskiyou Marble Mountain Wilderness Area, near Tom Taylor Cabin 2027 Comment
  CDA38859  Pterospora andromedea J. R. Grisham 1968-10-9 s.n. Siskiyou Ball Mountain Road. 0 Comment
  SEINET924200  Pterospora andromedea Carl B. Wolf 1934-1 6019 Siskiyou SW slope of Mt. Shasta, 4 mi NW of Wagon Camp 1524 Comment
  CDA32665  Puccinellia distans L. Ahart, J. Dittes 2005-6-9 12002 Siskiyou 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. Comment
  UCD91861  Puccinellia distans R. Tofsrud 1949-8-4 s.n. Siskiyou between Grenada and Gazelle, Hwy. 99. Comment
  UCD91893  Puccinellia lemmonii Chandler Jensen; Mike McGourty 1961-8-1 s.n. Siskiyou Near Yreka, Red Bluff. Comment
  UCD22432  Purshia tridentata Brian Vanden Heuvel 2003-4-10 194 Siskiyou Shasta National Forest. 1.6 miles east of McCloud on CA 89, on south side of road. Comment
  UCD77969  Purshia tridentata Robert E. Preston 2002-6-20 1839 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, Rainbow Mountain. 1946 Comment
  UCR17257  Purshia tridentata Frank C. Vasek 1975-6-29 750617- 02 Siskiyou 4.3 mi SW of Gazelle Comment
  HSC99683  Purshia tridentata var. tridentata C. B. Wolf 1927-8-26 1033 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  JEPS44606  Purshia tridentata var. tridentata W. L. Jepson 1940-6-28 20057 Siskiyou McCloud 975 Comment
  CAS-BOT-BC147913  Purshia tridentata var. tridentata Ella Dales Cantelow 1940-6-2 4311 Siskiyou W. of Indian Wells Ranger Station Comment
  HSC67488  Pyrola aphylla J. P. Smith, Steve Selva 1970-6-14 3882 Siskiyou Road to Steinacher Creek near Somes Bar. Comment
  JEPS26519  Pyrola aphylla Lauramay T. Dempster 1961-7-1 1848 Siskiyou Mill Creek near Etna 1219 Comment
  CAS-BOT-BC460868  Pyrola aphylla Wm. Bridge Cooke 1938-8-5 11455 Siskiyou Mount Shasta. Along the Sisson Southern Trail. 1676 Comment
  UC1409389  Pyrola asarifolia Frederick W. Oettinger 1969-8-14 1364 Siskiyou into to Upper English Lake 1767 Comment
  UC1408766  Pyrola asarifolia Frederick W. Oettinger 1968-8-7 441 Siskiyou The High Lake Basins in the Vicinity of English Peak Marble Mountain Willderness Area, Tabacco Lake 1889 Comment
  HSC67799  Pyrola dentata J. Sawyer, J. Cole 1980-7-22 3991 Siskiyou Little Horse Peak 1720 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
  RSA0080477  Pyrola dentata Geo D. Butler 1910-6-17 1574 Siskiyou Humbug Mountain. 1220 Comment
  SJSU2586  Pyrola picta H. L. Buckalew 1962-7-6 Siskiyou junction of Indian Cr. & W Branch Indian Cr, Siskiyou Mts Comment
  CAS-BOT-BC466139  Pyrola picta G. P. Rixford no date on label s.n. Siskiyou Hilt Comment
  CAS-BOT-BC466146  Pyrola picta Lester Rowntree 1937-8-8 s.n. Siskiyou Happy Camp Road Comment
  SBBG126113  Pyrrocoma lanceolata var. lanceolata L. Ahart, J. Dittes 2010-7-30 16969 Siskiyou Shasta Big Springs Ranch, 2.6 mi NW of Big Springs Lake, 3.9 mi SE of Grenada, 6.3 mi NW of Dwinnel Dam 778 Comment
  JEPS81784  Pyrrocoma racemosa var. pinetorum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6868 Siskiyou about 3 mi n (below) Scott Mtn. road summit (on road to Callahan) 1219 Comment
  JEPS84286  Quercus L. R. Heckard with R. Raiche, S. Winchester 1986-7-17 6486 Siskiyou e of Cook and Green Pass (ridge w of summit of Copper Butte) 1767 Comment
  UCD40475  Quercus chrysolepis Rodney Gale Myatt 1971-9-22 1220 -5 Siskiyou Next to Klamath River, past Horse Creek. 500 Comment
  UC705928  Quercus garryana var. breweri Marion Ownbey, Fred G. Meyer 1940-7-8 2229 Siskiyou 21 mi n Happy Camp; Summit of Siskiyou Mountains Comment
  JEPS74588  Quercus garryana var. breweri William J. Ferlatte 1973-7-30 1482 Siskiyou ca 1 mi se Big Flat (Yellow Rose Mine Trail); Trinity Alps 1828 Comment
  RSA15598  Quercus garryana var. garryana Carl B. Wolf 1927-8-27 1109 Siskiyou Happy Camp, Klamath River. Comment
  UCD46169  Quercus garryana var. semota Frederick W. Oettinger 1968-8-18 574 Siskiyou The High Lake Basins in the Vicinity of English Peak Marble Mountain Wilderness area. 1920 Comment
  POM166670  Quercus kelloggii E. B. Copeland 1903-7-14 3521 Siskiyou Klamathon. 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
  LA205301  Quercus kelloggii W. B. C.; 1939-7-28 13778 Siskiyou along the MacBride Springs Rd 1371 Comment
  HSC19221  Quercus sadleriana J. O. Sawyer 1968-9-13 706 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC68384  Quercus sadleriana Maralyn A. Renner 1980-6-26 1204 Siskiyou N edge of Flint Valley 1390 Comment
  LA86551  Quercus sadleriana Sandra L. Holloway; 1963-10-12 77 Siskiyou Marble Mountain Wilderness Area, junction Red Rock Valley trail and Canyon Creek trail 1341 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
  POM258373  Quercus sadleriana C. L. Hitchcock, J. S. Martin 1939-7-6 5221 Siskiyou On Takilma-Happy camp road. 1677 Comment
  RSA749132  Quercus sadleriana Jim R. Shevock, David Toren 2000-9-1 20099 Siskiyou Applegate River Drainage. Along trail 959 toward Bear Gulch about 100 yards N of Cook and Green Pass off of road 1055. 1433 Comment
  UC1046526  Quercus sadleriana R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-16 3454 Siskiyou about 1.5 mi below and se saddle at summit of Takilma-Happy Camp Road Comment
  UCD47244  Quercus sadleriana John M. Tucker 1972-8-8 4246 Siskiyou California, Siskiyou Co.; Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 mi. west-southwest of Marble Valley Guard Station (extreme southeast corner of Section 20, R. 11W., T. 42N); Comment
  CAS-BOT-BC104638  Quercus vacciniifolia W. R. Dudley 1899-8-9 s.n. Siskiyou Black Butte 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
  HSC68452  Quercus vacciniifolia Maralyn A. Renner 1980-7-4 1403 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC69561  Quercus vacciniifolia Maralyn A. Renner 1980-8-6 2288 Siskiyou Along trail, 0.5 mi. SE of Cyclone Gap. 1585 Comment
  POM106390  Quercus vacciniifolia Geo. D. Butler 1910-6-7 1530 Siskiyou Greenhorn Mountain. Comment
  UC637076  Quercus vacciniifolia Edward Lee 1934-8-13 1066 Siskiyou Happy Camp to Waldo (Oregon) road (watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  UCD37090  Quercus vacciniifolia Beecher Crampton 1956-8-21 3847 Siskiyou Siskiyou County, canyon of Sacramento River, just above junction of river's north fork with middle and south forks. 1066 Comment
  UC1733714  Ranunculus Frank Gould, Kay H. Beach 1940-5-15 1226 Siskiyou Bull Meadows Comment
  SEINET3159745  Ranunculus alismifolius G. D. Butler 1910-5-10 1322 Siskiyou Bulls meadows; Goosenest mountain 1676 Comment
  SEINET5338249  Ranunculus alismifolius G. Butler 1910-5-10 1322 Siskiyou Gosenest Mt., Bulls Meadows. 1676 Comment
  RSA238280  Ranunculus aquatilis var. capillaceus Frederick W. Oettinger 1969-9-5 1679 Siskiyou Salamander Pond near Abbotts Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SEINET5338464  Ranunculus canus G. Butler 1910-4-19 1199 Siskiyou Damp gully near Yreka. Comment
  HSC521  Ranunculus eschscholtzii var. eschscholtzii William J. Ferlatte 1967-8-20 1051 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  RSA183667  Ranunculus eschscholtzii var. suksdorfii Gilbert Muth 1965-8-6 183 Siskiyou Marble Mountains; backside of Black Mountain Comment
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May 28 2009
  JEPS60678  Ranunculus flammula Geo. D. Butler 1908-8-3 350 Siskiyou Log Lake Shackelford Creek Comment
  UC71955  Ranunculus flammula Milo S. Baker Aug, 1896 Siskiyou near Payne's Springs Comment
  UC454029  Ranunculus occidentalis I. J. Condit 1911-7-13 Siskiyou Dunsmuir; creek bed Comment
  UC827914  Ranunculus occidentalis Frank W. Gould 1940-5-15 1252 Siskiyou on road from Mt. Hebron to Montague; Bald Mountain 1676 Comment
  HSC39295  Ranunculus occidentalis var. occidentalis J. O. Sawyer 1970-4-4 2083 Siskiyou Along Sugar Creek 823 Comment
  CAS-BOT-BC56110  Rhamnus ilicifolia Carl B. Wolf 1927-8-26 1031 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  RSA0005516  Rhamnus obtusissima E. B. Copeland 1903-8-15 3833 Siskiyou Sisson 1098 Comment
  RSA7808  Rhamnus purshiana Doris K. Kildale 1928-8-20 6634 Siskiyou Trail betw English Lake and Finleys upper Camp trail to Marble Mt. Comment
  POM244253  Rhamnus rubra subsp. obtusissima Carl B. Wolf 1930-10-22 1755 Siskiyou 3 miles N of Mt. Shasta City on the Pacific Hwy 1220 Comment
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Sep 10 2010
  HSC75257  Rhodiola integrifolia subsp. integrifolia J. O. Sawyer, M. Mesler 1980-8-13 4051 Siskiyou E of Pacific Crest Trail at Black Marble Mtn. 1921 Comment
  UC456172  Rhododendron occidentale I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Castle Lake Comment
  UC1333305  Rhododendron occidentale Dorothy Parker 1949-6-6 Siskiyou Salmon Mountain Range, French Creek French Creek; Salmon Mountain Range, French Creek 1371 Comment
  HSC27471  Rhus aromatica J. P. Smith, J. O. Sawyer 1972-5-28 5368 Siskiyou 2.7 mi. N of Rd. 8 and Sugar Creek on Hwy. 3 915 Comment
  CHSC4532  Ribes J. E. Bowlin 1967-7-18 42 Siskiyou Ca. 3.4 mi w of Mount Shasta Ski Bowl. On side of road in chapperal, and brush. 2164 Comment
  UC160397  Ribes I. J. Condit 1911-7-22 Siskiyou Shasta trail 1676 Comment
  UC455595  Ribes I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1828 Comment
  CAS-BOT-BC92530  Ribes binominatum Doris K. Kildale 1928-8-18 6459 Siskiyou Near head of North Fork of Salmon River near Finley's Upper Camp. 1524 Comment
  RSA0024871  Ribes cereum Milo S. Baker 1957-6-16 13101 Siskiyou Trip to Scott Mt. after turn off near Callahan. Comment
  SEINET13942379 Image available Ribes cereum E. K Balls 1950-1 14703 Siskiyou Lava beds. Lava Beds National Monument, below Indian Well Public Camp. Alt 4600 ft 1402 Comment
  CAS-BOT-BC168861  Ribes inerme var. klamathense Elmer I. Applegate 1895-5-28 188 a Siskiyou Sisson, Strawberry Valley Comment
  CAS-BOT-BC168871  Ribes inerme var. klamathense E. Bethel 1923-6-20 1053 Siskiyou Weed Comment
  HSC49898  Ribes lacustre Maralyn O'Meara 1973-6-5 197 Siskiyou 1.0 mi. up Duck Lakes Trail along a trail crossing stream Comment
  HSC98168  Ribes lacustre J. O. Sawyer 1969-7-10 1307 Siskiyou Along S Sugar Creek 2012 Comment
  JEPS49367  Ribes lacustre Geo. D. Butler 1908-8-8 263 Siskiyou near Marble Valley Camp 1676 Comment
  UC1222377  Ribes lacustre Joseph P. Tracy 1951-6-16 19498 Siskiyou near State Line (summit of Siskiyous, at crossing of Takilma-Happy Camp Road); Siskiyous Comment
  HSC68334  Ribes lobbii Maralyn A. Renner 1980-6-26 1236 Siskiyou SE edge of Flint Valley. 1390 Comment
  JEPS84055  Ribes lobbii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6297 Siskiyou from Takilma to Happy Camp (Indian Creek Road, just s of state line) Comment
  UC1408856  Ribes lobbii Frederick W. Oettinger 1969-7-14 1019 Siskiyou saddle along ridge between Charmaine Lake and Abbott's Lake; Salmon Mountains, Marble Mountain Wilderness 1889 Comment
  RSA0021625  Ribes lobbii Gilbert Muth 1966-7-8 359 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  JEPS25641  Ribes marshallii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7280 Siskiyou Poker Flat 1536 Comment
  JEPS128460  Ribes montigenum Julie Kierstead Nelson with Martin Lenz 2015-6-18 2015 -061 Siskiyou Headwaters of West Fork Parks Creek, 2 miles NNE of China Mountain; 7 miles W of town of Weed. Comment
  CHSC1660  Ribes nevadense M. Yoder 1941-6-28 Siskiyou Castle Lake. Comment
  HSC671  Ribes nevadense William J. Ferlatte 1967-7-9 688 Siskiyou Kidd Creek Trail 1860 Comment
  HSC98216  Ribes nevadense J. O. Sawyer 1969-7-11 1339 Siskiyou S Sugar Creek 1829 Comment
  RSA0018039  Ribes roezlii I. L. Wiggins 1950-5-28 12374 Siskiyou Above Grouse Creek, about 1.5 miles from Carmen Lake. 1585 Comment
  JEPS49462  Ribes roezlii var. cruentum W. L. Jepson 1902-7-17 2059 Siskiyou trail to Devil's Backbone; Trinity Summit 2133 Comment
  RSA0024599  Ribes roezlii var. cruentum Geo. D. Butler 1909-4-15 645 Siskiyou Humbug Creek. Comment
  CAS-BOT-BC186286  Ribes roezlii var. roezlii A. A. Heller 1915-7-15 12078 Siskiyou Mt. Eddy 2072 Comment
  HSC33961  Ribes sanguineum J. P. Smith 1974-5-25 7445 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  UC165273 Image available Ribes sanguineum Geo. D. Butler 1909-4-24 670 Siskiyou Greenhorn road Comment
  UC165923  Ribes sanguineum Geo. D. Butler 1910-5-5 1286 Siskiyou Humbug Mountain Comment
  RSA605519  Ribes sanguineum var. sanguineum Louis C. Wheeler 1959-7-19 7584 Siskiyou Salmon and Marble Mountains Region: Black Bear Creek, between Sawyers Bar & Cecilville. 1372 Comment
  RSA0019541  Ribes sanguineum var. sanguineum Louis C. Wheeler 1963-9-3 8342 Siskiyou Siskiyou Mountains. Cyclone Gap chrome mine. Comment
  UCR17261  Ribes velutinum Frank C. Vasek 1975-6-29 750629- 03 Siskiyou 4.3 mi SW of Gazelle Comment
  CDA25590  Ribes viscosissimum T. C. Fuller 1962-6-13 8978 Siskiyou Road to Medicine Lake & Toad Lake, 6 miles northeast of Bartle. 0 Comment
  HSC69001  Ribes viscosissimum Maralyn A. Renner 1980-7-28 2197 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  JEPS86151  Ribes viscosissimum Wayne Roderick 1958-4 Siskiyou ca. 0.1 mi e Salmon Mountain Summit (w of Etna) 1828 Comment
  LA205491  Ribes viscosissimum W. B. C.; 1939-6-30 13570 Siskiyou Mount Shasta, near the source of MacBride Springs 1523 Comment
  CAS-BOT-BC74660  Rorippa curvisiliqua Gilbert Muth 1966-7-19 423 Siskiyou Marble Mountains. Horse pasture above camp. 1798 Comment
  JEPS117460  Rorippa nasturtium-aquaticum Lowell Ahart, John Dittes 2010-7-30 16960 Siskiyou About 50 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  CAS-BOT-BC147052  Rosa pisocarpa Alice Eastwood 1917-9-2 6686 Siskiyou Shasta Springs Comment
  CAS-BOT-BC147054  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou Near Fish Hatchery, Mt. Shasta City (Sisson) 1066 Comment
  CAS-BOT-BC147068  Rosa pisocarpa Alice Eastwood 1923-5-29 11997 Siskiyou Cantara Comment
  CAS-BOT-BC147078  Rosa pisocarpa Doris K. Kildale 1929-7-20 8634 Siskiyou Trail up South Fork of Indian Creek to Elk Lick Comment
  CHSC4281  Rosa pisocarpa D. Parker 1965-7-26 906 Siskiyou Cabin Meadow Creek, tributary to the E Fork of Scott River. 1676 Comment
  UC902160  Rosa pisocarpa Joseph P. Tracy 1949-9-16 18565 Siskiyou near summit (on road from Scott Valley to Trinity Center); Scott Mt. 1615 Comment
  CAS-BOT-BC149743  Rosa woodsii subsp. ultramontana L. B. Kildale 1930-5-31 9803 Siskiyou Island in Klamath River near Hornbrook Comment
  CAS-BOT-BC147136  Rubus glaucifolius Elmer I. Applegate 1923-9-7 3949 Siskiyou Doggett Creek, Canyon of the Klamath River, south slope of the Siskiyou Mountains Comment
  HSC60413  Rubus laciniatus J. P. Smith, Steve Selva 1970-6-15 3901 Siskiyou 10 mi. NW of Forks of Salmon Comment
  HSC78  Rubus leucodermis William J. Ferlatte 1967-7-26 761 Siskiyou NW side of Caribou Mtn., near Browns Meadow. 1829 Comment
  JEPS44776  Rubus leucodermis W. L. Jepson July 1894 13881 a Siskiyou Sisson Mt. Shasta, Sisson Comment
  UCSC000370  Rubus leucodermis I. J. Condit 2009-8-23 s.n. Siskiyou near Sisson Sisson - Castle Lake 1829 Comment
  CAS-BOT-BC147976  Rubus leucodermis Edward Lee 1934-8-15 1133 Siskiyou Near summit of Happy Camp to Waldo (Oregon) Road, Indian Creek watershed, Klamath National Forest 1584 Comment
  HSC19405  Rubus parviflorus J. O. Sawyer 1968-7-10 457 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  CAS-BOT-BC156598  Rubus ulmifolius A. M. Vollmer; L. Beane 1951-6-2 49 Siskiyou Klamath River Highway, betw. U.S. 99 & Gottville Comment
  HSC63041  Rubus ursinus J. P. Smith 1973-5-5 6420 Siskiyou Along Cook and Green Pass Rd. Comment
  UC133445  Rudbeckia klamathensis Dr. E. B. Copeland 1903-9-8 3862 Siskiyou Mt. Eddy 1524 Comment
  UC829536  Rudbeckia klamathensis Alice Eastwood 1912-8-30 2047 Siskiyou Mt. Eddy Comment
  JEPS74413  Rumex acetosella W. B. and V. G. Cooke 1974-8-20 49244 Siskiyou Everett Memorial Highway Mt. Shasta 1371 Comment
  HSC33984  Rumex acetosella J. P. Smith 1974-5-25 7473 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 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-BC433695  Rumex obtusifolius H. A. Thomas; J. H. Thomas 1954-7-26 4547 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Mt. View Cabin and S. Fork of Salmon River. 944 Comment
  UC1072719  Rumex salicifolius var. salicifolius Douglas Barbe 1955-6-29 49 Siskiyou 1.8 mi e Callahan (s bank of Scott River); Klamath Mountains, Scott River 975 Comment
  CDA23189  Rumex stenophyllus R. Pederson, G. Pederson 1979-10-1 108 Siskiyou Lower Klamath National Wildlife Refuge, beside gate at shop entrance. Comment
  UC1408875  Sagina saginoides Frederick W. Oettinger 1969-8-19 1467 Siskiyou near Abbotts; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1859 Comment
  HSC76982  Salix eastwoodiae K. T. Stillman 1976-6-25 74 Siskiyou Marble Mtn. Wilderness Area 1799 Comment
  RSA183704  Salix eastwoodiae Gilbert Muth 1965-8-5 172 Siskiyou Along trail behind Black Mtn. Marble Mtns. Comment
  RSA238013  Salix eastwoodiae Frederick W. Oettinger 1968-9-3 690 Siskiyou Near Horse's Hole. Horse Range Lake Basin. The Salmon Mtns. High Lakes Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  POM219749  Salix exigua H. P. Bracelin 1931-6-22 477 Siskiyou Pit River at Gibson flag station. 125 km N of Red Bluff. 450 Comment
  CAS-BOT-BC107654  Salix jepsonii Alice Eastwood 1921-7-24 10716 Siskiyou Castle Lake Comment
  CAS-BOT-BC125451  Salix lasiandra var. lasiandra Louis C. Wheeler 1934-7-6 2893 Siskiyou Klamath National Forest, Hungry Creek 1371 Comment
  JEPS13070  Salix lasiandra var. lasiandra Geo. D. Butler 1908-7-9 523 Siskiyou Butler Ranch Yreka Comment
  CAS-BOT-BC107060  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1455 Comment
  CAS-BOT-BC107070  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 419 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1425 Comment
  POM107146  Salix lasiolepis Geo. D. Butler 1908-9-20 1104 Siskiyou Yreka Creek. 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
  UC375226  Salix lasiolepis Geo. D. Butler 1909-3-14 1080 Siskiyou near Yreka (e end Lamb and Sheldon P.M.); Butler's Ranch Comment
  CAS-BOT-BC124898  Salix lemmonii Mrs. H. P. Bracelin 1931-6-21 467 Siskiyou North side of Mount Eddy, about 21 km. northwest of Shasta City; 180 m. below Dobkin's Lake 1770 Comment
  UC481733  Salix lemmonii Mrs. H. P. Bracelin 1931-6-21 467 Siskiyou ca. 21 km. n.w. of Shasta City (meadow 180 m. below Dobkin's Lake); n. side Mt. Eddy 1770 Comment
  UC482240  Salix lemmonii Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou ca. 16 km. n.w. Shasta City (n.e. side Mt. Eddy, above Metcalf ranch house); Mt. Eddy 1455 Comment
  CAS-BOT-BC125068  Salix ligulifolia Alice Eastwood 1917-9-2 6689 Siskiyou Shasta Springs Comment
  POM208268  Salix lucida subsp. lasiandra Louis C. Wheeler 1934-7-5 2893 Siskiyou Hungry Creek. Siskiyou Mtns. 1372 Comment
  CAS-BOT-BC125693  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou Flume Creek, tributary of Pit River, near highway at Flume Creek Camp 555 Comment
  CAS-BOT-BC126132  Salix scouleriana L. S. Smith 1931-6-7 15 Siskiyou Mt. Shasta 1066 Comment
  CAS-BOT-BC126134  Salix scouleriana L. S. Smith 1931-6-7 21 Siskiyou Mt. Shasta 1066 Comment
  CAS-BOT-BC129029  Salix scouleriana A. A. Heller 1915-7-18 12130 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy in moist soil in the forest. 1188 Comment
  CAS-BOT-BC129045  Salix scouleriana W. R. Dudley 1899-8-8 s.n. Siskiyou Near Big Spring above Sisson Comment
  HSC28680  Salix scouleriana Frederick W. Oettinger 1968-8-2 363 Siskiyou Marble Mtn. Wilderness Area, outlet of Diamond Lake 2073 Comment
  POM107274  Salix scouleriana Geo. D. Butler 1908-8-11 148 Siskiyou Shackleford Creek. Comment
  UC375230  Salix scouleriana Geo. D. Butler 1910-5-30 1439 Siskiyou Humbug Mt. 1219 Comment
  SEINET9308453  Salvia dorrii Unknown 2009-5-31 Siskiyou High elevation, semi-arid desert ecosystem; native species; collected at Lava Beds National Monument, directly South of Tulelake, CA. Comment
  RSA200635  Salvia pratensis C. S. Giebner 1968-7-29 s.n. Siskiyou E. H. Marlow prop., Greenhorn Valley, ca. 2 mi. W of Yreka. Comment
  CAS-BOT-BC225204  Salvia sonomensis A. A. Heller 1905-6-16 8044 Siskiyou Back of Sisson on the Mt. Shasta Trail Comment
  CAS-BOT-BC235044  Sambucus W. R. Dudley 1901-8-21 s.n. Siskiyou Rush Creek, Meadows, Salmon Mts. Comment
  SEINET9287629  Sambucus canadensis var. canadensis Unknown 2009-5-31 Siskiyou High elevation, semi-arid desert ecosystem; native species; collected at Lava Beds National Monument, directly South of Tulelake, CA. Comment
  JEPS106456  Sambucus mexicana J. K. Nelson 2004-8-29 2004 -94 Siskiyou S side Mount Shasta, at unnamed springs W of Mud Creek Dam, along Road 31 1584 Comment
  CAS-BOT-BC238877  Sambucus nigra subsp. caerulea Gilbert Muth 1966-7-29 459 Siskiyou Marble Valley, Marble Mts. 1795 Comment
  HSC287  Sambucus racemosa var. racemosa William J. Ferlatte 1967-8-22 1080 Siskiyou Caribou Basin. 1982 Comment
  UC164236  Sanguisorba annua Geo. D. Butler 1900-6-3 1468 Siskiyou Quartz Valley Comment
  UC1733770  Sanicula Kay H. Beach 1940-5-15 631 Siskiyou Bull Meadows Comment
  UC901893  Sanicula graveolens L. Constance 1950-7-16 3360 Siskiyou Little Grayback Peak near summit Little Grayback Peak 1737 Comment
  HSC62024  Sanicula graveolens Ruby Van Deventer 5 Jun [year missing] Siskiyou Poker Flat 1585 Comment
  HSC76720  Sanicula graveolens K. T. Stillman 1976-8-7 389 Siskiyou Marble Mountain Wilderness Area, trail from Black Mtn. camp to Jump off Comment
  UCD39819  Sanicula tuberosa A. H. Murphy 1953-7-28 KNF 9 Siskiyou Klamath National Forest. Long Gulch Camp. 1889 Comment
  CAS-BOT-BC110341  Sarcobatus vermiculatus Robert F. Thorne; J. Henrickson; C. W. Tilforth 1969-9-3 39040 Siskiyou Ca. 2 miles west of Lower Klamath National Wildlife Refuge. 1295 Comment
  UCR66599  Saussurea americana L. C. Wheeler 1934-8-14 3146 Siskiyou Siskiyou Mtns., S side of White Mtn 1738 Comment
  RSA184699  Saxifraga caespitosa Gilbert Muth 1966-7-31 468 Siskiyou North side of Black Mountain, Marble Mountains. 1982 Comment
  POM354591  Saxifraga ferruginea M. B. Dunkle 1945-7-24 9254 Siskiyou Klamath National Forest. Marble Mtns. Comment
  CAS-BOT-BC445881  Saxifragopsis fragarioides C. L. Hitchcock; J. S. Martin 1939-7-9 5316 a Siskiyou Between King's Castle and Black Mt., west side of ridge. 1828 Comment
  CHSC100002  Saxifragopsis fragarioides L. P. Janeway 2008-7-26 9506 Siskiyou Klamath Ranges. Between Castle Crags, Trinity Mountains, and The Eddys; about 200 m west-southwest of Heart Lake and about 0.8 km south of Castle Lake. 1901 Comment
  HSC19459  Saxifragopsis fragarioides J. O. Sawyer 1969-7-24 1458 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  POM259289  Saxifragopsis fragarioides John T. Howell 1939-8-3 14990 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  RSA580863  Schedonorus arundinaceus L. C. Wheeler 1934-6-26 2796 Siskiyou Siskiyou Mountains, Cottonwood Creek. 838 Comment
  UCD126453  Schedonorus arundinaceus Roseman 1913-1 36 Siskiyou Butte Valley. Comment
  SEINET5717261 Image available Schoenoplectus americanus Philip E. Hyatt 2002-1 11141 Siskiyou Fr. Goff Recreation Area at T47N R12W S32's south edge at S5 of T46N R12W. Along Klamath River. Comment
  HSC30684  Scirpus congdonii Frederick W. Oettinger 1969-8-22 1500 Siskiyou Marble Mtn. Wilderness Area, S end of Horses Hole pond above Horse Range Lake 1875 Comment
  SEINET7592336 Image available Scirpus congdonii Frederick W. Oettinger 1969-8-22 1500 Siskiyou S side of Horse's Hole Pond, above Horse Range Lake 1875 Comment
  CAS-BOT-BC111101  Scirpus microcarpus Copeland 1903-8-14 3722 Siskiyou Sisson Comment
  UC971922  Scleranthus annuus subsp. annuus Herbert L. Mason 1950-7-15 14041 Siskiyou Scott Creek , Scott Creek (Scott Valley) Comment
  CDA2412  Sclerochloa dura C. S. Giebner 1963-5-6 Siskiyou Shasta Valley; Sedge Nelson property, opposite Game Refuge, Big Springs. 0 Comment
  CAS-BOT-BC214193  Scutellaria Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 273 Siskiyou Mumbo Basin, Trinity Mts. 1828 Comment
  HSC92411  Scutellaria antirrhinoides Jennifer Whipple 1976-7-13 1455 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River. 2256 Comment
  RSA14093  Scutellaria antirrhinoides Elmer I. Applegate 1907-09 3306 Siskiyou Thrall, near Klamath River, Shasta Valley. Comment
  UC1023836  Scutellaria antirrhinoides Milo S. Baker and Douglas Barbe 1955-7-1 80 Siskiyou just behind Callahan (to the north); Klamath Mountains 975 Comment
  JEPS94880  Scutellaria galericulata Vernon H. Oswald and Lowell Ahart 1998-7-21 9350 Siskiyou ne of Weed and s of Macdoel (along Old State Highway on the w side of Bray); along Old State Highway on the w side of Bray 1417 Comment
  CAS-BOT-BC214256  Scutellaria nana Milo S. Baker 1957-6-15 13105 Siskiyou Road cut just S of Weed Comment
  UCD125688  Scutellaria siphocampyloides Robert E. Preston 1995-6-22 897 Siskiyou Irongate Reservoir, on open slopes W of Mirror Cove. 731 Comment
  CHSC462  Sedum V. Holt 1943-8-9 Siskiyou Marble Mountains 1828 Comment
  UCR278356  Sedum kiersteadiae Peter F. Zika 2013-6-28 26289 Siskiyou Klamath Range, Route 26, 0.6 air km west-northwest of Gumboot Lake 1960 Comment
  CAS-BOT-BC59188  Sedum lanceolatum Louis C. Wheeler 1934-8-9 3075 Siskiyou Janyes Canyon 1920 Comment
  JEPS105142  Sedum laxum subsp. flavidum Dean W. Taylor 1993-7-30 13991 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 miles east of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
  HSC100079  Sedum oblanceolatum G. L. Clifton, Griswold 1979-6-28 6139 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  JEPS26928  Sedum obtusatum subsp. boreale P. C. Hutchison 2042 Siskiyou s side of the Klamath River 100 yards w Ash Creek Bridge (ca 1.9 mi w of junction of highways 299 and US 99); s side Klamath River at Ash Creek Bridge Comment
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Jul 7 2015
  CAS-BOT-BC64645  Sedum oregonense Alice Eastwood 1921-7-24 10727 Siskiyou Castle Lake Comment
  CAS-BOT-BC64658  Sedum oregonense Edward Lee 1934-8-14 1105 Siskiyou Little Grayback, Siskiyou-Del Norte County line. 1868 Comment
  JEPS121416  Sedum radiatum subsp. depauperatum Peter F. Zika 2011-7-19 25645 Siskiyou Forest Service Road 1055, 5.9 road miles S of and above junction with Road 1050, 1 air mile SSE of Windy Peak, Siskiyou Mountains Comment
  CAS-BOT-BC59064  Sedum spathulifolium D. M. Traugh 1933-8-10 25 Siskiyou Klamath National Forest 1889 Comment
  HSC19475  Selaginella scopulorum J. O. Sawyer 1969-6-10 805 Siskiyou S face near Sugar Lake 1829 Comment
  UC917260  Senecio aronicoides R. Tofsrud and J. M. Tucker 1948-8-2 1763 Siskiyou Panther Meadows, s slope of Mt. Shasta Mt. Shasta 2407 Comment
  CAS-BOT-BC363425  Senecio aronicoides Alice Eastwood 1923-5-22 11888 Siskiyou Sisson Comment
  CDA8579  Senecio aronicoides T. C. Fuller 1962-6-11 8958 Siskiyou East side of Hwy 99 to Black Butte Summit, 4.1 miles south of Weed. 0 Comment
  CAS-BOT-BC363745  Senecio hydrophilus T. C. Fuller 1958-9-12 s.n. Siskiyou 5 mi. s. of Yreka Comment
  UCR93348  Senecio integerrimus Kathy Harper, D. 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
  HSC90546  Senecio integerrimus var. exaltatus Jennifer Whipple 1976-6-19 1067 Siskiyou N-facing slopes in the Eddy Creek drainage 2195 Comment
  JEPS37284  Senecio integerrimus var. major Duncan Dunning 1922-6-6 Siskiyou nw of Fort Jones; Moffett Creek Comment
  JEPS37650  Senecio integerrimus var. major W. L. Jepson 1907-7-5 2839 Siskiyou Marble Mt. Comment
  CHSC99695  Sibbaldia procumbens L. P. Janeway 2008-7-24 9473 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
  JEPS44595  Sibbaldia procumbens Willis L. Jepson 1894-8-4 14169 Siskiyou above snow-line Mt. Shasta Comment
  UC114369  Sibbaldia procumbens Thomas Howell May 1889 1383 Siskiyou Hornbrook Comment
  HSC60831  Sidalcea malviflora Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  SD62050  Sidalcea malviflora subsp. asprella DarleyF. Howe 1965-8-8 4126 Siskiyou Saddle, south of Little Gray Back. 1402 Comment
  JEPS67291  Sidalcea oregana subsp. oregana W. L. Jepson 1940-7-1 20088 Siskiyou 6 mi e McCloud (McCloud River); , e of McCloud, Fowlers Camp 975 Comment
  HSC19522  Silene douglasii J. O. Sawyer 1969-7-24 1195 Siskiyou NE facing slope above Sugar Lake 1784 Comment
  UC1540254  Silene douglasii Dean W. Taylor 1987-6-26 9063 Siskiyou 2 mi se from Medicine Lake (moist meadow margin near head of easternmost spring); Paynes Springs, se from Medicine Lake 1996 Comment
  CAS-BOT-BC388957  Silene grayi John Thomas Howell 1939-8-8 15168 A Siskiyou Black Mt., Marble Mts. Comment
  SD113391  Silene grayi Darley F. Howe 1962-8-6 3404 Siskiyou Mt. Shasta, Shasta National Forest. 2438 Comment
  HSC606  Silene grayi William J. Ferlatte 1967-7-26 753 Siskiyou Caribou Basin, N slope on Sawtooth Ridge 2287 Comment
  HSC61456  Silene grayi Ruby Van Deventer 1938-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  CAS-BOT-BC389422  Silene lemmonii Roxana S. Ferris; Laura Lorraine 1948-6-12 11735 Siskiyou French Creek Logging Road west of Callahan 1219 Comment
  CAS-BOT-BC389437  Silene lemmonii John Thomas Howell 1937-7-22 13330 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC389424  Silene lemmonii A. A. Heller 1905-6-15 8036 Siskiyou On the first ridge west of and near Sisson Comment
  HSC99987  Silene lemmonii Thomas W. Nelson 2005-7-16 9379 Siskiyou Along F. S. Rd. 42N16. 1337 Comment
  RSA610005  Silene menziesii subsp. menziesii L. C. Wheeler 1935-6-27 3593 .5 Siskiyou Yreka Creek; Siskiyou Mts. 884 Comment
  HSC6910  Sisymbrium altissimum D. M. Thomson 1965-6-12 80 Siskiyou Lava Beds National Monument, edge of Monument boundary, at Hovey Point Comment
  HSC536  Sisyrinchium bellum William J. Ferlatte 1966-6-22 101 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  UC429235  Sisyrinchium bellum unknown April 1903 Siskiyou Yreka; Mount Mooney Comment
  CHSC57538  Sisyrinchium douglasii Lyna R. Black 1990-4-11 3 Siskiyou Approx. 1/2 mi ne of Yreka. N slope of hill. 822 Comment
  SEINET3154290  Smilacina sessilifolia G. D. Butler 1910-5-15 1343 Siskiyou McAdams Creek Comment
  UC336536  Smilax californica unknown Jul. 1878 Siskiyou near Shasta Comment
  UC1409319  Smilax jamesii Frederick W. Oettinger 1968-9-4 691 Siskiyou outlet of Abbott's Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, High Lake 1722 Comment
  CHSC91239  Solanum dulcamara Lowell Ahart; John Dittes 2005-6-10 12078 Siskiyou In water on the north side of the Shasta River, about 60 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC43149  Solanum physalifolium var. nitidibaccatum Ken Stillman 1976-8-24 425 Siskiyou Along Klamath River at Williams Point. 366 Comment
  RSA428795  Solanum umbelliferum Louis C. Wheeler 1934-7-3 428795 Siskiyou Head of Soda Creek. Sterling Mt. 1768 Comment
  UC884969  Solanum umbelliferum John Thomas Howell 1939-8-9 15234 Siskiyou Marble Mountains, Shackleford Creek Trail Shackleford Creek Trail; Marble Mountains, Shackleford Creek Trail Comment
  CDA8727  Solidago canadensis subsp. elongata T. C. Fuller 1960-7-25 4868 Siskiyou North limits of Mt. Shasta City. 0 Comment
  RSA237482  Solidago canadensis subsp. elongata Frederick W. Oettinger 1967-8-20 307 Siskiyou Northwest of Pine Lake, Salmon Mountains; Marble Mountain Wilderness Area. 1878 Comment
  HSC67438  Solidago elongata J. P. Smith, J. O. Sawyer 1971-9-17 4781 Siskiyou Little Duck Lake Comment
  UC1223179  Solidago spectabilis Joseph P. Tracy 1949-9-16 18568 Siskiyou Scott Mt. on the road between Callahan and Trinity Center at the top (on the north) Siskiyou side. Comment
  RSA237488  Solidago velutina subsp. californica Frederick W. Oettinger 1968-9-5 706 Siskiyou English Lake Basin, Salmon Mountains, Marble Mountain Wilderness Area. 1898 Comment
  UC446912  Solidago velutina subsp. californica L. F. Henderson 1929-8-24 11469 Siskiyou near Takilma, Oregon (but over the line in California); near Takilma, Oregon but over the line in California Comment
  OBI53777  Solidago velutina subsp. californica David J. Keil 1992-7-20 23477 Siskiyou 10.3 mi W of Fort Jones along Scott River Rd 900 Comment
  CHSC1607  Sorbus californica M. Yoder 1941-6-28 Siskiyou Castle Lake. 1981 Comment
  RSA142661  Sorbus californica Al Hobart 1961-7-13 3 Siskiyou Mt. Preston. 1829 Comment
  UC154508  Sorbus californica Harley P. Chandler June, 1901 1633 Siskiyou near Marble Mountain (Klamath River to); North Coast Ranges 2133 Comment
  CAS-BOT-BC158924  Sorbus scopulina D. M. Traugh 1933-8-6 5 Siskiyou Klamath National Forest 1783 Comment
  CAS-BOT-BC158937  Sorbus scopulina Louis C. Wheeler 1934-8-8 3068 Siskiyou W. Fork Beaver Cr., Klamath National Forest 1676 Comment
  RSA184730  Sorbus scopulina Gilbert Muth 1966-7-8 363 Siskiyou Marble Valley Meadow. Marble Mtns. 1793 Comment
  HSC29506  Sorbus sitchensis var. sitchensis Frederick W. Oettinger, R. F. Thorne 1969-8-7 1276 Siskiyou Marble Mtn. Wilderness Area, SE end of English Lake 1799 Comment
  HSC18957  Sparganium angustifolium J. O. Sawyer 1969-8-1 1601 Siskiyou Behind Horseshoe Lake 1921 Comment
  SBBG27223  Spergularia rubra L. C. Wheeler 1934-9-2 3239 Siskiyou Miller Glade, Siskiyou Mtns 1828 Comment
  UC1190113  Spiraea densiflora Ira L. Wiggins 1955-7-27 13528 Siskiyou Caribou Lake; Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC149687  Spiraea douglasii Wm. Bridge Cooke 1938-7-29 11400 Siskiyou Above Bear Springs Comment
  JEPS46333  Spiraea douglasii W. L. Jepson 1940-7-3 20107 Siskiyou 5 mi se Bartle; Big Bear Flat 1219 Comment
  UC13517  Spiranthes porrifolia W. C. Blasdale 1894-7-31 Siskiyou Sissons Comment
  UC164419  Spiranthes romanzoffiana Geo. D. Butler 1908-8-3 28 Siskiyou Log Lake Shackleford Creek Comment
  JEPS84076  Stachys ajugoides var. rigida L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6306 Siskiyou just s state line (Indian Creek Road from Takilma to Happy Camp) Comment
  RSA238545  Stachys rigida subsp. rivularis Frederick W. Oettinger 1967-8-13 257 Siskiyou Just below Tom Taylor Cabin Spring. The Salmon Mountains; the High Lakes Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  CAS-BOT-BC181422  Stellaria calycantha John Thomas Howell 1939-8-3 14966 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC391219  Stellaria longipes subsp. longipes Alice Eastwood 1921-7-28 10876 Siskiyou Medicine Lake Comment
  CHSC88120  Stellaria longipes var. longipes Jenny Marr 1993-7-1 130 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS20033  Stellaria media George D. Butler 1909-3-19 559 Siskiyou near Yreka (on Butler's Ranch) Comment
  CAS-BOT-BC395085  Stellaria nitens Geo. D. Butler 1910-4-9 1158 Siskiyou near Yreka Comment
  UC1408920  Stephanomeria lactucina Frederick W. Oettinger 1968-8-7 473 Siskiyou e side Hancock Lake (w Siskiyou County, the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area); Salmon Mountains 1889 Comment
  UCSB276  Stephanomeria lactucina Myrick, Donald 1964-7-25 Siskiyou Along Shasta Ski Bowl Highway, Mt. Shasta 1219 Comment
  POM56351  Stephanomeria lactucina Copeland 1903-8-15 3838 Siskiyou Sisson. Comment
  CAS-BOT-BC375669  Stephanomeria paniculata Wm. Bridge Cooke 1938-7-22 11316 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  HSC30693  Stipa occidentalis var. californica Frederick W. Oettinger 1968-8-8 454 Siskiyou Marble Mtn. Widlerness Area, Crapo meadow near Tom Taylor Cabin. 2027 Comment
  SJSU11314  Stipa occidentalis var. occidentalis S. H. Casey 1981-7-4 1207 Siskiyou Siskiyou Pass, Siskiyou Mts. 2 mi W of Cook & Green Pass, c. 7 mi N of Seiad Valley 1706 Comment
  CAS-BOT-BC87845  Streptanthus tortuosus John Thomas Howell 1937-7-22 13298 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC87858  Streptanthus tortuosus Marion Ownbey; Fred G. Meyer 1940-7-3 2162 Siskiyou 5 miles northwest of McCloud. Comment
  HSC589  Streptanthus tortuosus William J. Ferlatte 1967-8-23 1084 Siskiyou Head of Kidd Creek, E side of Black Mtn. 2378 Comment
  UCD116129  Streptanthus tortuosus Jack Major 1961-7-14 636 Siskiyou Panther Creek, Mount Shasta. 1790 Comment
  POM143374  Streptanthus tortuosus Milo S. Baker 1899-7-31 s.n. Siskiyou Eastern slope, Mt Shasta. Ash Creek above Warren and Anderson s Comment
  HSC35794  Streptanthus tortuosus var. tortuosus J. O. Sawyer 1969-6-12 881 Siskiyou Ridge SE of Eaton Lake 2226 Comment
  HSC61980  Streptanthus tortuosus var. tortuosus Al Hobart 25 Sep [year missing] Siskiyou Preston Peak 1677 Comment
  HSC18896  Streptopus amplexifolius J. O. Sawyer 1968-7-9 435 Siskiyou W of Little Duck Lake 1936 Comment
  CAS-BOT-BC516435  Streptopus amplexifolius Milo S. Baker 1926-7-16 85 Siskiyou South Fork Mt. on Forest Road 4 miles from Highway Comment
  JEPS80511  Streptopus amplexifolius var. americanus Gilbert Muth 1966-7-24 443 Siskiyou Marble Mt. Wilderness Area, Marble Valley 1792 Comment
  UCD139812  Streptopus amplexifolius var. americanus John M. Tucker 1963-8-19 3771 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area. 1950 Comment
  HSC92936  Stuckenia filiformis subsp. alpina Jennifer Whipple 1976-9-4 1790 Siskiyou Dobkins Lake 2073 Comment
  UC1191398  Suaeda calceoliformis Verne Grant and Irving Schneider 1947-8-26 8304 Siskiyou Lower Klamath Lake; flats by Interstate Highway Comment
  JEPS44096  Swertia albicaulis var. albicaulis W. B. and V. G. Cooke 1965-7-12 35174 Siskiyou Bolam Road Mt. Shasta Comment
  JEPS47018  Swertia albicaulis var. nitida Geo. D. Butler 1908-6-25 416 Siskiyou near Yreka (Butler's Ranch) 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
  HSC18986  Symphoricarpos mollis J. O. Sawyer 1969-8-5 1947 Siskiyou Along Sugar Creek. 1921 Comment
  HSC69557  Symphoricarpos mollis Maralyn A. Renner 1980-8-6 2293 Siskiyou Along trail, 0.5 mi. SE of Cyclone Gap. 1585 Comment
  CAS-BOT-BC97580  Symphyotrichum ascendens W. R. Dudley 1899-8-13 s.n. Siskiyou Nabar Meadows, near McCloud Comment
  CAS-BOT-BC97879  Symphyotrichum eatonii Alice Eastwood 1912-8-28 1954 Siskiyou Cantara Comment
  CAS-BOT-BC97874  Symphyotrichum eatonii Louis C. Wheeler 1934-9-19 3284 Siskiyou Klamath National Forest, Walker 518 Comment
  HSC34310  Symphyotrichum foliaceum J. P. Smith, J. O. Sawyer 1973-8-14 7323 Siskiyou West of Cliff Lake 2012 Comment
  UC60978  Symphyotrichum foliaceum Geo. B. Grant 1902-1 5186 Siskiyou Mt. Shasta 609 Comment
  RSA273360  Symphyotrichum foliaceum var. foliaceum J. P. Smith, J. O. Sawyer 1972-9-14 5810 Siskiyou 3.6 miles west of State Route 3 on Road 8 1220 Comment
  HSC5081  Symphyotrichum foliaceum var. parryi Geo. D. Butler 1910-8-13 1830 Siskiyou Quartz Valley Comment
  CAS-BOT-BC98428  Symphyotrichum spathulatum W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Comment
  CAS-BOT-BC98925  Symphyotrichum spathulatum var. intermedium Wm. F. Herrin 1920-8-25 s.n. Siskiyou Road to Mt. Eddy Comment
  JEPS86149  Synthyris reniformis Wayne Roderick 1965-1 Siskiyou Cook & Green Pass area Cook & Green Pass 1524 Comment
  SD113986  Taraxia tanacetifolia Darley F. Howe 1964-8-5 3938 Siskiyou 4.4 miles south of Dorris on #97 1280 Comment
  HSC27602  Taxus brevifolia Carl W. Mize 1972-6-10 51 Siskiyou Along Steinacher Creek 0.5 mi. from Wooley Creek 244 Comment
  HSC31985  Taxus brevifolia Steve Selva, Roger Jensen 1974-8-22 37 Siskiyou Trail from Doe Flat campground to Buck Lake Comment
  UC496182  Taxus brevifolia Elmer I. Applegate 1930-8-9 6599 Siskiyou top of high divide s Cameron Meadow (headwaters of Applegate River); Siskiyou Mountains, Applegate River Comment
  HSC68511  Tellima grandiflora Maralyn A. Renner 1980-6-25 1121 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  SJSU6490  Tellima grandiflora R. W. Trivelpiece 1972-6-4 106 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp 1280 Comment
  SD88458  Tellima grandiflora Darley F. Howe 1972-7-5 Siskiyou 0.6 miles south of Oregon State line on road to Happy Camp 1707 Comment
  UCSB16646  Tellima grandiflora Breedlove, Dennis 1962-6-11 Siskiyou about 20 miles west of Fort Jones, Marble Mountains 914 Comment
  CAS-BOT-BC332878  Tetradymia canescens Elmer I. Applegate 1935-8-3 10021 Siskiyou Caldwell Butte, Lava Beds National Monument Comment
  POM100448  Thalictrum fendleri Geo. D. Butler 1910-7-8 1672 Siskiyou Shackleford Creek. 1220 Comment
  CAS-BOT-BC399878  Thalictrum polycarpum Gilbert Muth 1966-7-17 408 Siskiyou Trail to Lookout, Marble Mts. 1889 Comment
  CAS-BOT-BC65025  Thelypodium laciniatum Julie Kierstead Nelson; Rhonda Posey 2007-6-15 2007 -006 Siskiyou North side of Mount Shasta, south of Hwy 97. Quadrangle 764 Juniper Flat. 1100 Comment
  CHSC96601  Thlaspi montanum var. montanum L. P. Janeway 2006-7-2 8732 Siskiyou Klamath Ranges. Salmon Mountains; near minor drainage to South Fork Scott River from the west, 1.6 km north of Carter Meadows Summit. 1728 Comment
  RSA0041643  Thysanocarpus radians K. L. Chambers, C. G. Carlbom 1962-4-21 2103 Siskiyou Hwy. 99, 5.6 mi. S of the center of Yreka. Comment
  RSA184798  Tofieldia glutinosa subsp. occidentalis Gilbert Muth 1966-8-3 499 Siskiyou Marble Valley, water source spring, Marble Mountains 1793 Comment
  RSA211324  Tofieldia glutinosa subsp. occidentalis William J. Ferlatte 1966-8-16 369 Siskiyou Trinity Alps: Big Flat, between campground and south forth of the Salmon River 1524 Comment
  RSA264992  Tolmiea menziesii G. L. Clifton 1975-7-29 s.n. Siskiyou Copper Butte. Near Seiad Valley. 1415 Comment
  RSA47984  Tonella tenella Roxana S. Ferris, Laura Lorraine 1948-6-12 11779 Siskiyou Small tributary of Etna Creek below Mill Creek Bridge. 1067 Comment
  SEINET10810172  Torreyochloa pallida var. pauciflora Louis C. Wheeler 1935-7-26 Wheeler 3714 Siskiyou Siskiyou Mts., Jaynes Canyon. Wet sunny meadow. Mt. Diablo Mer. S 12 T 47 N, R 10 W. 1951 Comment
  CDA7719  Tragopogon dubius T. C. Fuller 1959-10-14 3127 Siskiyou Highway 99, north limits of Mt. Shasta City. 0 Comment
  HSC46950  Tragopogon dubius William J. Ferlatte 1974-7-16 1550 Siskiyou Big Flat near South Fork of the Salmon River, 100 yds. W of campground 1524 Comment
  CAS-BOT-BC377156  Tragopogon porrifolius Alice Eastwood 1912-7-21 1294 Siskiyou Sisson Comment
  JEPS84231  Trautvetteria caroliniensis var. occidentalis L. R. Heckard with J. Hickman et al. 1986-7-17 6524 Siskiyou e Condrey Mt.; Alex Hole region 1980 Comment
  UC160925  Trautvetteria caroliniensis var. occidentalis Harley P. Chandler June, 1901 1601 Siskiyou near Marble Mountain (North Coast Ranges); North Coast Ranges 1828 Comment
  CAS-BOT-BC519569  Triantha occidentalis subsp. occidentalis David D. Keck 1949-7-20 6363 Siskiyou meadow at Scott Mountain Summit, at Trinity County line 1716 Comment
  HSC63477  Triantha occidentalis subsp. occidentalis M. A. Baker 1979-7-31 1092 Siskiyou Marble Mtn. Wilderness Area, head of Tickner Hole 1750 Comment
  RSA602844  Tribulus terrestris Louis C. Wheeler 1935-7-13 3657 Siskiyou Ager. 793 Comment
  HSC99288  Trichostema simulatum C. B. Wolf 1927-8-26 1054 Siskiyou Klamath River, 3 mi. below Gottenville Comment
  HSC68413  Trientalis latifolia Maralyn A. Renner 1980-7-4 1407 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC68550  Trifolium eriocephalum Maralyn A. Renner 1980-6-22 893 Siskiyou Slopes N of Little Shasta River 1372 Comment
  HSC61930  Trifolium howellii Ruby Van Deventer 1939-7-18 Siskiyou Poker Flat 1585 Comment
  RSA237887  Trifolium howellii Frederick W. Oettinger 1968-7-17 557 Siskiyou Pine Lake Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  JEPS65928  Trifolium hybridum Geo. D. Butler 1908-7-8 387 Siskiyou near Yreka (Butler's Ranch) Comment
  RSA582432  Trifolium hybridum Louis C. Wheeler 2791 Siskiyou Cottonwood Creek 838 Comment
  UC1025112  Trifolium kingii var. productum Douglas Barbe 1955-7-9 154 Siskiyou s shore Kangaroo Lake; Scott Mtns 1828 Comment
  RSA666382  Trifolium longipes Barbara Ertter 1990-7-14 9314 Siskiyou East side of Mount Eddy about 4 air miles due west of Mount Shasta City, at streamlet near end of Forest Road 41N53, about 1 mile north of Morgan Meadows. 1677 Comment
  JEPS33206  Trifolium longipes var. elmeri John Gill Lemmon 1889-6-28 Siskiyou Mt. Eddy Comment
  JEPS93906  Trifolium longipes var. elmeri Vernon H. Oswald and Lowell Ahart 1998-8-3 9435 Siskiyou w of Kangaroo Lake (near the Pacific Crest Trail in the Scott Mountains); Scott Mountains 1981 Comment
  JEPS97189  Trifolium longipes var. elmeri Julie Kierstead Nelson with Maria Ulloa-Cruz 1995-8-22 95056 Siskiyou 1 1/2 mi W of The Eddys (on Parks Creek Road (Rd. 17); W slope of Parks Creek drainage); Shasta-Trinity National Forests, Mt. Shasta Ranger District 1737 Comment
  UC1045249  Trifolium pratense W. B. Cooke 1940-7-5 15235 Siskiyou Bear Springs meadow Mount Shasta 1524 Comment
  UCD109295  Trifolium pratense L. Whitney 1934-6-24 s.n. Siskiyou location unknown. 1463 Comment
  HSC18993  Trifolium productum J. O. Sawyer 1969-7-7 1086 Siskiyou Little Duck Lake 1966 Comment
  CDA39376  Trillium angustipetalum T. Kono 1979-5-2 s.n. Siskiyou Montgomery Creek. 0 Comment
  CAS-BOT-BC519097  Trillium chloropetalum var. chloropetalum B. H. Mace 1920-5-27 121 Siskiyou Sulphur Camp 1676 Comment
  HSC69029  Trillium ovatum Maralyn A. Renner 1980-7-28 2184 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  HSC99848  Trillium ovatum G. L. Clifton 1979-7-1 6184 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  HSC27975  Trillium ovatum Carl W. Mize 1972-9-23 128 Siskiyou Along Gates Creek 762 Comment
  UCD93876  Trisetum canescens R. Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road between Happy Camp and O'Brien Oregon. Comment
  POM198622  Trisetum canescens Geo D. Butler 1910-7-8 1661 Siskiyou Shackleford Creek. Comment
  HSC39671  Trisetum cernuum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5727 Siskiyou 0.9 mi. S of Sugar Creek on Parrott Mill Rd. 1341 Comment
  UCD93739  Trisetum spicatum A. H. Murphy 1959-7-21 59 E Siskiyou Shasta National Forest. Deadfall Lake area. 2225 Comment
  HSC92573  Trisetum wolfii Jennifer Whipple 1978-10-6 2434 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  HSC46189  Triteleia crocea Jennifer Whipple 1977-4-30 1871 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  RSA378083  Triteleia crocea M. B. Dunkle 1944-6-25 9020 Siskiyou Siskiyou National Forest. 1677 Comment
  SJSU6067  Triteleia crocea R. W. Trivelpiece 1971-6-6 10 Siskiyou E Fork Horse Creek between White Mt & White Cloud Mt c. 5 mi S of Oregon border 944 Comment
  UC618714  Triteleia ixioides subsp. anilina W. Bridge Cooke 1938-7-15 11238 Siskiyou vicinity lower Wagon Camp; Mount Shasta Comment
  CAS-BOT-BC524320  Triteleia ixioides subsp. anilina Alice Eastwood 1921-7-24 10957 Siskiyou Castle Lake Comment
  HSC68998  Tsuga mertensiana Maralyn A. Renner 1980-7-28 2200 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  JEPS80542  Tsuga mertensiana Gilbert Muth 1965-8-16 223 E Siskiyou Black Mt. Marble Mt. Wilderness Area, Black Mt. 1792 Comment
  RSA237584  Tsuga mertensiana Frederick W. Oettinger 1968-9-2 669 Siskiyou To the east of the inlet brook to Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC915712  Tsuga mertensiana W. L. Jepson July 1907 Siskiyou Marble Mountain; w Siskiyou Co. Comment
  SBBG39108  Tsuga mertensiana W. M. Plumb 1969-2-22 Siskiyou just under Pk of China Mtn Scott Bar Mtns 2438 Comment
  CAS-BOT-BC74101  Turritis glabra Marion Ownbey; Fred G. Meyer 1940-7-7 2207 Siskiyou Along Soap Ridge road, southwest of Yreka. Comment
  CAS-BOT-BC403938  Urtica dioica subsp. gracilis A. Eastwood 1917-9-2 6675 Siskiyou Shasta Springs Comment
  SEINET516316  Urtica dioica subsp. holosericea Vernon H. Oswald 1998-9-16 9639 Siskiyou Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi E of Hwy. 97. 1244 Comment
  SEINET6766884  Urtica dioica var. occidentalis G. D. Butler 1910-6-30 1616 Siskiyou Yreka Creek Comment
  UCD121867  Utricularia minor Barry Rice 2007-7-8 BR 070704 Siskiyou Cedar Lake. 1742 Comment
  UC1281488  Vaccinium H. E. McMinn 1931-6-27 2534 Siskiyou summit above Weitchpec Comment
  CAS-BOT-BC199190  Vaccinium cespitosum John Thomas Howell 1937-7-24 13416 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC199230  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  HSC29338  Vaccinium membranaceum Frederick W. Oettinger 1968-9-5 721 Siskiyou Marble Mountain Wilderness Area, near inlet stream to Hancock Lake 1936 Comment
  HSC19095  Vaccinium scoparium J. O. Sawyer 1969-8-1 1656 Siskiyou Along trail to Little Duck Lake 1951 Comment
  HSC19415  Vaccinium scoparium J. O. Sawyer 1968-7-9 429 Siskiyou W of Little Duck Lake. 1936 Comment
  UC1409421  Vaccinium scoparium Frederick W. Oettinger 1968-8-3 370 Siskiyou mid-trail between Diamond Lake and Hancock Lake (w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 2011 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
  UC195254  Valeriana sitchensis subsp. sitchensis Annie M. Alexander and Louise Kellogg 1911-6-18 158 Siskiyou Jackson Lake 1798 Comment
  JEPS62203  Veratrum californicum var. californicum Willis L. Jepson 1894-7 Siskiyou Sisson Comment
  HSC785  Veratrum viride William J. Ferlatte 1967-8-20 1043 Siskiyou Caribou Basin 2134 Comment
  RSA138226  Veratrum viride Percy C. Everett, E. K. Balls 1959-10-23 23940 Siskiyou 4 miles southwest from Etna, on road from Callaban to Somesbar, Salmon Mountains 1677 Comment
  JEPS23292  Veronica americana Rimo Bacigalupi with Arthur and Ruby Van Deventer 1959-7-9 7261 Siskiyou Poker Flat 1536 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
  JEPS83001  Veronica catenata L. R. Heckard 1971-8-28 2782 Siskiyou about 5 mi n of Yreka (on old U.S. Highway 99, under and e of bridge across Shasta River); Shasta River 731 Comment
  RSA426513  Veronica copelandii M. B. Dunkle 1945-1 9301 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  UC1473429  Veronica copelandii Gilbert Jerome Muth 1978-8-2 7402 Siskiyou near South China Mountain (close to town of Callahan) 2438 Comment
  CHSC1913  Veronica wormskjoldii K. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. 2316 Comment
  HSC15245  Vicia americana var. americana D. M. Thomson 1965-6-19 94 Siskiyou Lava Beds National Monument, Captain Jacks Stronghold Comment
  HSC36869  Vicia americana var. americana J. P. Smith 1974-5-26 7544 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC68542  Vicia americana var. americana Maralyn A. Renner 1980-6-25 1086 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  HSC76879  Vicia americana var. americana K. T. Stillman 1976-6-26 140 Siskiyou Marble Mountain Wilderness Area, Kings Castle. 2134 Comment
  UC867130  Vicia americana var. americana unknown 1941-7-11 16038 Siskiyou Memorial Highway; Mount Shasta Comment
  RSA237896  Vicia americana var. americana Frederick W. Oettinger 1969-7-29 1103 Siskiyou Uncles Lake. The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. Salmon Mountains Western Siskiyou County. 1829 Comment
  RSA507507  Vicia californica 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
  CAS-BOT-BC270228  Viola adunca L. E. Smith 1913-5-12 202 Siskiyou Dunsmuir Comment
  HSC64658  Viola adunca J. O. Sawyer 1977-7-6 3024 Siskiyou South of Little Duck Lake 2134 Comment
  POM84321  Viola adunca Geo. D. Butler 1910-6-5 1513 Siskiyou Log Lake Comment
  UC140877  Viola adunca Copeland 1903-8-14 3721 Siskiyou Sisson; Pacific Coast Comment