Search Results — 2000 specimen records retrieved (1380 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC44565  Abies X shastensis Robert Wharton 1977-10-9 Siskiyou N slope of Mt. Shasta, Bulk Collection #118 2287 Comment
  UC1409511  Abies concolor Frederick W. Oettinger 1968-9-10 809 Siskiyou on steep slope ne of English Lake outlet (w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
  HSC5000  Abies lasiocarpa J. O. Sawyer 1969-8-1 1600 Siskiyou Behind Horseshoe Lake 1921 Comment
  CAS-BOT-BC330622  Acer circinatum Volney Rattan 1879-6-1 sn. Siskiyou Unspecified Comment
  RSA537381  Acer circinatum Walter Wisura, J. Romero 1991-10-16 4591 Siskiyou 3.8 miles from north end of Dusmuir along old road to town of Mt. Shasta Comment
  RSA96934  Acer circinatum Percy C. Everett, E. K. Balls 1954-10-11 20270 Siskiyou South fork of Sacramento River, 3 miles southwest from town of Mt. Shasta on road to Castle Lake 884 Comment
  UC1505812  Acer glabrum var. glabrum Robert T. Clausen and Harold Trapido 1940-7-26 4959 Siskiyou canyon of Mud Creek So. Cascade Mts., Sacramento River Basin, Mt. Shasta (Sacramento River Basin, So. Cascade Mts.) 1493 Comment
  UC166211  Acer glabrum var. glabrum Geo. D. Butler 1909-7-20 908 Siskiyou Highland Mine Highland Mine Comment
  HSC4973  Acer glabrum var. torreyi J. O. Sawyer 1968-6-18 212 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  HSC61841  Acer glabrum var. torreyi Al Hobart 1969-7-7 Siskiyou Poker Flat 1646 Comment
  HSC67768  Acer glabrum var. torreyi John Palmer 1980-8-13 776 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  CAS-BOT-BC332785  Acer macrophyllum Alice Eastwood 1917-9-2 6654 Siskiyou Shasta Springs Comment
  OBI55465  Achillea millefolium David J. Keil 1992-7-21 23539 Siskiyou Klamath Natl forest SE of Callahan. forest Rd 40N08, 1.7 mi W of Scott Mtn rd (hwy 3) Comment
  UC129583  Achillea millefolium Harley P. Chandler 1901-6-1 1677 Siskiyou Marble Mountain; North Coast Ranges 2438 Comment
  RSA50158  Achillea millefolium E. K. Balls 1949-7-9 s.n. Siskiyou Salmon Mtns. top of pass on rd from Etna to Sawyer's Bar. 1479 Comment
  HSC36728  Achlys triphylla Brent Whiteley 1975-6-28 83 Siskiyou 915 Comment
  CHSC110946  Achnatherum nevadense B. Castro; L. P. Janeway 2007-7-29 1670 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, at base of N-facing slope. Ca 150 ft up old Rd 43N39 (now closed) from jcn with its 'A' spur, in the old roadbed. 1950 Comment
  CAS-BOT-BC216923  Achnatherum occidentale John Thomas Howell 1934-7-4 12390 Siskiyou SE corner of the county Comment
  CAS-BOT-BC216927  Achnatherum occidentale Louis C. Wheeler 1934-6-11 2684 Siskiyou N Hungry Creek 1310 Comment
  CHSC102577  Achnatherum occidentale subsp. californicum L. P. Janeway 2009-8-4 9896 Siskiyou High Cascade Range. Flat open area along Military Pass Road (43N19) 3.4 km east of Military Pass, 6.4 km northwest of Ash Creek Butte. 1804 Comment
  RSA233653  Achnatherum occidentale subsp. californicum R. F. Thorne, Frederick W. Oettinger 1969-8-10 38998 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  RSA238981  Achnatherum occidentale subsp. californicum Frederick W. Oettinger 1968-9-6 744 -a Siskiyou Tom's Lake region, Edge of Bear Meadow . The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2188 Comment
  UCD51424  Achnatherum thurberianum W. E. Moon 1958-5-29 s.n. Siskiyou along State Hwy. 97, 12 miles northeast of Weed. Comment
  JEPS107489  Achyrachaena mollis Lowell Ahart, John Dittes 2005-6-10 12113 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  CAS-BOT-BC29149  Achyrachaena mollis L. E. Smith 1915-6-1 s.n. Siskiyou Hilt Comment
  HSC30775  Acmispon nevadensis J. P. Smith, J. O. Sawyer 1972-5-28 5373 Siskiyou 1.2 mi. E. of Jackson Creek on Callahan-Cecilville Rd., Klamath National Forest 1341 Comment
  HSC101739  Acmispon wrangelianus J. P. Smith, J. O. Sawyer 2010-5-2 12798 Siskiyou River access road, on the Salmon River. 164 Comment
  JEPS41327  Aconitum columbianum Ruby Van Deventer 1938-7-31 66 Siskiyou s. Little Greyback Mt. (Poker Flat); Poker Flat 1524 Comment
  JEPS60369  Aconitum columbianum Geo. D. Butler 1908-8-3 363 Siskiyou Shackelford Creek, Log Lake 1524 Comment
  UC375344  Aconitum columbianum Geo. D. Butler 1909-7-20 1064 Siskiyou Highland Mine Comment
  SEINET4176084 Image available Aconitum columbianum Sally Walker 1983-8-24 Siskiyou Beside Pacific Crest Trail, Mt Eddy 3048 Comment
  RSA113745  Aconitum columbianum var. columbianum Beecher Crampton 1956-8-21 3801 Siskiyou Above Gumboot Lake, headwater of the S fork of Sacramento River. 1921 Comment
  CAS-BOT-BC412912  Aconogonon davisiae Robert F. Thorne; Fred Oettinger 1969-8-10 38986 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta 2438 Comment
  CAS-BOT-BC412919  Aconogonon davisiae Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh Lake Comment
  HSC77010  Aconogonon phytolaccifolium K. T. Stillman 1976-7-7 164 Siskiyou Marble Mountain Wilderness Area 1982 Comment
  SEINET4175530  Aconogonon phytolaccifolium G. D. Butler 1910-7-8 1674 Siskiyou Shackleford Creek Comment
  HSC26111  Actaea rubra J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5678 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  HSC22210  Actaea rubra J. O. Sawyer 1969-7-11 854 Siskiyou Ravine above Parrott Mill Rd. 1280 Comment
  HSC98138  Adenocaulon bicolor J. O. Sawyer 1969-7-23 1451 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  UC61077  Adenocaulon bicolor W. A. Setchell, C. C. Dobie 1902-7-22 Siskiyou Mc Cloud River (The Bend); Mount Shasta, Mc Cloud River (The Bend) Comment
  OBI4708  Aegilops cylindrica T. C. Fuller 1960-5-24 4341 Siskiyou Ca. 4 mi E of Montague Comment
  CHSC114933  Aegilops cylindrica D. B. Joley 1976-6-24 1 Siskiyou Montague. Comment
  CAS-BOT-BC29452  Ageratina occidentalis Alice Eastwood 1912-8-28 1944 Siskiyou Cantara Comment
  UC896508  Ageratina occidentalis John Thomas Howell 1939-8-2 14893 Siskiyou Spirit Lake Marble Mts., Spirit Lake Comment
  CAS-BOT-BC29448  Ageratina occidentalis Louis C. Wheeler 1934-8-9 3070 Siskiyou Dead Cow Creek, Klamath National Forest 1981 Comment
  RSA12510  Ageratina occidentalis Carl B. Wolf 1934-7-4 5926 Siskiyou 0.7 mi. below mouth of Dillon Creek, Klamath River. 244 Comment
  RSA45346  Ageratina occidentalis Dorothy Parker 1946-8-18 s.n. Siskiyou Rail Creek 1220 Comment
  CHSC253  Agoseris aurantiaca V. Holt 1943-8-14 Siskiyou Marble mountains. 1828 Comment
  CAS-BOT-BC21370  Agoseris aurantiaca var. aurantiaca G. J. Muth 1969-8-8 1293 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  JEPS36216  Agoseris grandiflora Geo. D. Butler 1909-6-4 761 Siskiyou near Yreka Comment
  CAS-BOT-BC15379  Agoseris grandiflora var. grandiflora Louis C. Wheeler 1934-6-11 2683 Siskiyou North Hungry Creek, Siskiyou Mountains 1310 Comment
  CAS-BOT-BC15382  Agoseris grandiflora var. grandiflora Alice Eastwood 1912-7-17 1171 Siskiyou Sisson Comment
  UC682100  Agoseris grandiflora var. grandiflora G. L. Stebbins Jr. with A. A. Beetle 1942-5-30 3260 Siskiyou 3 mi s Yreka 810 Comment
  RSA142619  Agoseris monticola Philip A. Munz 1960-8-22 24185 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  CDA345  Agoseris retrorsa T. C. Fuller 1962-6-11 8957 Siskiyou East side of Hwy 99 to Black Butte Summit, 4.1 miles south of Weed. 0 Comment
  CAS-BOT-BC126984  Agrostis exarata J. M. Tucker 1963-8-19 3782 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area. 1950 Comment
  UC1025005  Agrostis exarata Leo Whitney 1935-7-15 3468 Siskiyou 2 mi se Medicine Lake; Bullseye Lake Comment
  UC1265415  Agrostis exarata F. W. Oettinger 1968-9-7 755 Siskiyou north shore line of lake Salmon Mountains, Hancock Lake 1935 Comment
  CHSC88380  Agrostis exarata var. monolepis Jenny Marr 1993-7-1 185 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA129612  Agrostis hallii A. Simontacchi 1937-6-21 175 Siskiyou Hunter Point Comment
  POM207472  Agrostis hallii W. C. Blasdale, Jos Burtt Davy 1899-7-30 6175 Siskiyou Near Ferndale Comment
  LA206324  Agrostis humilis J. R. Swallen; 1939-8-8 13815 Siskiyou Mount Shasta, around the water supply spring above Horse Camp Comment
  HSC22421  Agrostis pallens J. O. Sawyer 1969-7-25 1526 Siskiyou SE facing slope W of Sugar Lake 1845 Comment
  RSA239081  Agrostis pallens Frederick W. Oettinger 1969-8-24 1537 Siskiyou NW of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  RSA384953  Agrostis pallens M. B. Dunkle 9324 Siskiyou Marble Mountains. 2439 Comment
  HSC30583  Agrostis scabra Frederick W. Oettinger 1968-9-7 751 Siskiyou Marble Mtn. Wilderness Area, N end of Hancock Lake. 1951 Comment
  UC642585  Agrostis scabra Jason Swallen 1939-6-30 13560 Siskiyou MacBride Springs 1524 Comment
  RSA238341  Agrostis stolonifera Frederick W. Oettinger 1969-8-24 1523 Siskiyou Near inlet to Upper English lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  UCD53518  Agrostis stolonifera Geo. D. Butler 1909-6-28 852 Siskiyou Almy Creek, near Yreka. Comment
  JEPS84244  Allium L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6346 a Siskiyou ca. 1/2 mi se Red Butte (ca. 7 mi nne Seiad Valley, sw of Cook and Green Pass) 1730 Comment
  UC57363  Allium acuminatum H. M. Hall and E. B. Babcock June, 1903 4086 Siskiyou Shasta Valley Sierra Nevada Mountains, Mount Shasta, Shasta Valley 1158 Comment
  POM110212  Allium amplectens Geo D. Butler s.n. Siskiyou Yreka. Comment
  SBBG14883  Allium bolanderi A. I. Richardson 1961-6-8 14 Siskiyou near Cedar Lake, N of Mt Shasta 853 Comment
  UC15013  Allium bolanderi Harley P. Chandler June, 1901 1724 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges, Shackleford Canyon 1828 Comment
  HSC21984  Allium bolanderi var. bolanderi J. O. Sawyer 1969-6-12 924 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC91449  Allium falcifolium Jennifer Whipple 1976-6-17 1017 Siskiyou N face of Mt. Eddy 2226 Comment
  JEPS2716 Image available Allium falcifolium W. L. Jepson 1907-7-5 2830 Siskiyou Marble Mt. Comment
  HSC44753  Allium falcifolium J. O. Sawyer 1978-6-17 3231 Siskiyou Marble Mountain Wilderness: Slopes E of Gem Lake. 2073 Comment
  HSC99606  Allium falcifolium Thomas W. Nelson, Jane P. Nelson 2004-6-20 9259 Siskiyou Along FS Rd. 40N08, 1 mi. from its junction with Hwy. 3 at Scott Mtn. Pass 1707 Comment
  SEINET12048266  Allium falcifolium M. Ownbey, Brown, D. H. 1941-1 2427 Siskiyou SW of McKinley Mountain, W of Yreka Comment
  RSA697276  Allium peninsulare var. peninsulare D. W. Taylor 1996-5-29 15641 Siskiyou Marble Mountains; Drainage of Kidder Creek; cliffs on deeply incised canyon of Kidder Creek about 2 miles west of Scott Valley, Klamath National Forest. 854 Comment
  HSC30918  Allium siskiyouense Melinda F. Denton 1973-6-27 2797 Siskiyou Klamath National Forest, just S of border of Klamath and Siskiyou National Forests, 9 mi. S of intersection of 416C and 4007 on 416C 1628 Comment
  HSC60887  Allium validum Al Hobart Siskiyou Black Butte Comment
  JEPS69370  Allophyllum divaricatum W. L. Jepson July, 1894 15061 Siskiyou Sisson Shasta Region, Sisson Comment
  CAS-BOT-BC171403  Alnus incana subsp. tenuifolia J. H. Chastain 1918-3-1 s.n. Siskiyou Gazelle Comment
  RSA183479  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou In vicinity of cabin, lower Red Rock Valley, Marble Mountain Wilderness Area. 1494 Comment
  SEINET205137  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou Marble Mtn WA ; In vicinity of cabin lower Red Rock Valley 1494 Comment
  CAS-BOT-BC169639  Alnus rhombifolia Alice Eastwood 1912-8-30 s.n. Siskiyou N Fork Trail Mount Eddy Comment
  CAS-BOT-BC169647  Alnus rhombifolia W. R. Dudley 1899-8-22 s.n. Siskiyou Gazelle Comment
  CAS-BOT-BC169643  Alnus rhombifolia W. R. Dudley 1901-8-24 s.n. Siskiyou Salmon? or Rush Creek Comment
  HSC2384  Alnus viridis subsp. sinuata William J. Ferlatte 1966-8-19 436 Siskiyou Kidd Creek trail 1677 Comment
  UC642581  Alnus viridis subsp. sinuata W. Bridge Cooke 1939-8-10 13862 Siskiyou Mud Creek Canyon Mount Shasta (around springs on walls, from the Hudsonian to the Transition Zones) Comment
  UCD110046  Alnus viridis subsp. sinuata Jack Major 1961-7-14 642 Siskiyou Mud Creek, Mount Shasta. 1706 Comment
  CAS-BOT-BC539680  Alnus viridis subsp. sinuata Doris K. Kildale 1929-7-20 8721 Siskiyou Raspberry Lake, upper Indian Creek 1828 Comment
  UC1100238  Alopecurus aequalis Herbert L. Mason 1948-7-18 13617 Siskiyou Grass Lake Comment
  UCD55833  Alopecurus aequalis L. Whitney 1934-6-29 2234 Siskiyou Antelope Creek, near Tennant. 1463 Comment
  CHSC91341  Alyssum alyssoides Lowell Ahart; John Dittes 2005-6-9 12017 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
  NY785943  Alyssum alyssoides A. A. Heller 1905-6-9 s.n. Siskiyou Comment
  HSC27466  Amelanchier alnifolia var. semiintegrifolia J. P. Smith, J. O. Sawyer 1972-5-28 5378 Siskiyou 2.4 mi. E of Trail Creek Campground on the Calahan-Cecilville Rd. 1524 Comment
  CDA25701  Amelanchier pallida T. C. Fuller 1962-6-13 8976 Siskiyou Highway 89 to McCloud 1.2 miles west of Bartle. 0 Comment
  HSC41461  Amelanchier pallida J. P. Smith 1973-5-5 6510 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC41465  Amelanchier pallida J. P. Smith, Steve Selva 1970-6-16 4065 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  RSA237656  Amelanchier pallida Frederick W. Oettinger 1968-8-2 361 Siskiyou South end of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC136896  Amelanchier utahensis Mrs. H. P. Bracelin 1936-5-11 839 Siskiyou Mt. Eddy, about 6 miles N.W. of Mt. Shasta City, Wagon Creek Canyon above Metcalf ranch house 1188 Comment
  CAS-BOT-BC136898  Amelanchier utahensis Ellsworth Bethel 1923-5-20 s.n. Siskiyou McCloud Comment
  CAS-BOT-BC136914  Amelanchier utahensis Doris K. Kildale 1929-5-11 7761 Siskiyou Klamath River at Hornbrook Comment
  RSA0089947  Amsinckia menziesii var. menziesii L. C. Wheeler 1935-5-26 3534 Siskiyou Yreka Creek. Siskiyou Mts. 854 Comment
  JEPS85080  Anaphalis margaritacea W. B. and V. G. Cooke with Ted Graves 1988-8-29 64234 Siskiyou s side, in Mud Creek drainage Mount Shasta; Shasta-Trinity National Forest, Mount Shasta 1584 Comment
  UC179644  Anaphalis margaritacea A. A. Heller 1914-8-28 11734 Siskiyou Mt. Eddy 2133 Comment
  CAS-BOT-BC64606  Androsace elongata subsp. acuta John Thomas Howell 1952-6-14 28347 Siskiyou 9.5 mi. from St. Jones on road to Callehan. Comment
  JEPS13784  Androsace elongata subsp. acuta Geo. D. Butler 1909-3-7 579 Siskiyou Yreka Comment
  HSC39  Anemone deltoidea William J. Ferlatte 1966-6-23 135 Siskiyou Along the Yellow Rose Mine Trail. 1677 Comment
  HSC4930  Anemone deltoidea J. O. Sawyer 1968-7-2 354 Siskiyou Upper drainage of Joe Creek 1677 Comment
  HSC65508  Anemone deltoidea Rich White 1977-7-21 129 Siskiyou Slope below outlet of Raspberry Lake 1512 Comment
  UC1046555  Anemone deltoidea R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-16 3450 Siskiyou at Poker Flat (near summit of Takilma-Happy Camp Rd over Siskiyou Mtns, Del Norte-Siskiyou Co. line); Siskiyou Mtns 1630 Comment
  POM365633  Anemone deltoidea M. B. Dunkle 1944-6-25 9000 Siskiyou Siskiyou National Forest. 1677 Comment
  CHSC1426  Anemone drummondii V. Holt 1943-8-1 Siskiyou Marble mountains. 1828 Comment
  UCD95474  Anemone drummondii var. drummondii Robert E. Preston 2001-8-26 1766 a Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 1975 Comment
  HSC34320  Anemone occidentalis J. P. Smith, J. O. Sawyer 1973-8-14 7321 Siskiyou W of Cliff Lake 1982 Comment
  UC853596  Anemone occidentalis L. E. Smith Siskiyou Mt. Shasta Comment
  UC8931  Anemone occidentalis Harley P. Chandler June, 1901 1637 Siskiyou ridges & meadows near Marble Mt.; North Coast Ranges 2133 Comment
  POM100598  Anemone occidentalis Geo. D. Butler 1910-7-10 1736 Siskiyou Upper Carufehell Lake. 1677 Comment
  UC1167722  Angelica arguta Peter H. Raven 1956-9-4 10376 Siskiyou s of Mount Eddy 2286 Comment
  UC1360403  Angelica arguta J. M. Tucker 1963-8-20 3787 Siskiyou 1/2 mi ne of Marble Valley Guard Station (Marble Mountain Wilderness Area); Marble Mountain Wilderness Area 1920 Comment
  HSC71389  Angelica tomentosa J. M. DiTomaso 1980-8-4 1845 Siskiyou Flint Valley, off Gasquet-Orleans Rd. 1390 Comment
  HSC103575  Antennaria argentea Thomas W. Nelson, Jane Nelson 1985-6-19 7820 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  UC454329  Antennaria argentea I. J. Condit 1911-7-4 Siskiyou Shasta Retreat Comment
  CAS-BOT-BC59161  Antennaria dimorpha Geo. D. Butler 1910-3-24 1140 Siskiyou Shasta River Hills Comment
  HSC92259  Antennaria dimorpha Jennifer Whipple 1976-7-7 1330 Siskiyou N slopes of Mt. Eddy. 2439 Comment
  RSA416689  Antennaria geyeri J. William Thompson 1936-7-8 13158 Siskiyou Lava slopes of Lava Beds Nat'l Monument. Comment
  RSA167215  Antennaria howellii subsp. howellii Joseph P. Tracy 1950-7-20 19206 Siskiyou Along top of ridge 5 miles SE of Flint Valley and along the road to Prospect Hill Comment
  CAS-BOT-BC77345  Antennaria media John Thomas Howell 1937-7-24 13401 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC45211  Antennaria media J. O. Sawyer, E. Cope 1977-6-20 2964 Siskiyou Behind Devil's Punchbowl 1829 Comment
  CAS-BOT-BC79907  Antennaria microphylla Elmer I. Applegate 1935-6-8 9429 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  JEPS74526  Antennaria rosea W. J. Ferlatte 1966-6-22 80 Siskiyou Josephine Lake Basin; Trinity Alps, Josephine Lake Basin 1676 Comment
  UC1034585  Anthemis cotula Douglas Barbe 1955-7-1 84 Siskiyou 6 mi s Etna; Scott Valley 883 Comment
  RSA371501  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-7-2 363 Siskiyou Gazelle-Callahan Road, 2.5 miles NE of Hwy. 3. 1052 Comment
  UC1238901  Antirrhinum vexillocalyculatum subsp. breweri Freed W. Hoffman 1950-7-11 3724 Siskiyou 2.0 mi from north end of Cedar Camp road (Cedar Camp road, where the road joins the Klamath <River> again, and 42.5 mi n of Klamath <River> from the s end of Cedar Camp road, w Siskiyou Co.); North Coast Ranges Comment
  CHSC116257  Apera interrupta Barbara L. Wilson; Nick Otting 2014-6-16 18102 Siskiyou Road 26 between Bumboot Lake and Lake Siskiyou. 1371 Comment
  UC455929  Apocynum androsaemifolium I. J. Condit 1911-7-14 Siskiyou Shasta Retreat Comment
  UCSB6038  Apocynum androsaemifolium Myrick, Donald 1964-7-25 Siskiyou Along Shasta Ski Bowl Highway 1219 Comment
  HSC22425  Aquilegia formosa var. formosa J. O. Sawyer 1969-7-16 1153 Siskiyou W of Waterdog Lake 2073 Comment
  HSC29187  Arabis glabra Frederick W. Oettinger 1969-8-18 1420 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: W side of Horse Range Lake 1829 Comment
  RSA0125809  Arabis glabra Frederick W. Oettinger 1969-8-16 1405 Siskiyou Wire Grass meadow, English Lake basin (below it). Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC165312  Arabis holboellii Geo. D. Butler 1910-7-8 1663 Siskiyou Log Lake Shackleford Creek 1219 Comment
  HSC99978  Arabis holboellii var. retrofracta Thomas W. Nelson, & Sydney Carothers 2005-7-17 9386 Siskiyou Etna Summit along Etna-Forks of the Salmon Rd.. 1804 Comment
  UC583410  Arabis modesta Elmer I. Applegate 1932-4-16 7065 Siskiyou between Hamburg and Seiad Valley; Klamath River Comment
  HSC92698  Arabis oregana J. P. Smith 1973-5-5 6497 Siskiyou Along Cook and Green Pass Rd. Comment
  POM266029  Arabis oregana Lincoln Constance, Reed C. Rollins 1942-5-13 2915 Siskiyou Scott River 10 miles southwest of Scott Bar. 610 Comment
  HSC29138  Arabis platysperma var. howellii Frederick W. Oettinger 1968-8-4 390 Siskiyou Vicinity of English Peak, Marble Mountain Wilderness Area; trail N of Crapo Peak Ridge 2195 Comment
  HSC35792  Arabis platysperma var. howellii J. O. Sawyer 1969-8-4 835 Siskiyou Slopes S of S Sugar Lake 2134 Comment
  UC855541  Arabis rectissima var. rectissima A. A. Heller 1916-6-23 12421 Siskiyou near Black Butte (n of Sisson) 1127 Comment
  HSC29178  Arabis rigidissima Frederick W. Oettinger 1969-9-4 1636 Siskiyou Marble Mtn. Wilderness Area, W face of Peak E of Hancock Lake 1982 Comment
  SEINET2471294  Arceuthobium abietinum subsp. wiensii R. L. Mathiasen 2007-9-16 2007 -47 Siskiyou Ca. 18 km W. of Indian Creek on forest road 17N11 1340 Comment
  UC618794  Arceuthobium campylopodum W. B. C. 1938-9-2 11593 Siskiyou Sisson Southern Trail Mount Shasta 1371 Comment
  HSC96171  Arceuthobium campylopodum R. L. Mathiasen 2005-3-12 531 Siskiyou 0.8 km N of Hwy. 89 on FS Rd. 88 (road to Mt. Shasta Ski Park), Shasta-Trinity National Forest Comment
  CAS-BOT-BC410075  Arceuthobium douglasii William Bridge Cooke 1939-8-25 13920 Siskiyou on the SW slopes of Mount Shasta 1524 Comment
  SEINET2139984  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-1 2003 -49 Siskiyou 0.4 km S of Eaton Lake, Russian Peak Wilderness. 1940 Comment
  SEINET8530039  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-7-27 2003 -41 Siskiyou 1.2 km NW of Ahlgren Cabin on Garden Gulch Trail Comment
  UC1388343  Arctostaphylos Freed W. Hoffman 1948-7-8 2584 Siskiyou Waldo-Happy Camp Rd n West Branch Camp; North Coast Ranges Comment
  JEPS81806  Arctostaphylos klamathensis Todd Keeler-Wolf 1982-9-19 686 Siskiyou 0.5 km sw Terrace Lake 1950 Comment
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Mar 30 2006
  CAS-BOT-BC105082  Arctostaphylos nevadensis R. C. Wenk 2008-7-25 942 Siskiyou Lily Pad Lake, just W of Kangaroo Lake, S of the Gazelle-Callahan Rd. Margin of lake 1798 Comment
  CAS-BOT-BC45433  Arctostaphylos nevadensis Doris K. Kildale 1928-7-2 5335 Siskiyou Salmon Summit on Hom Creek Trail. 1981 Comment
  HSC69205  Arctostaphylos nevadensis Maralyn A. Renner 1980-9-1 2680 Siskiyou Bear Mtn. Comment
  JEPS86119  Arctostaphylos nevadensis Wayne Roderick 1966-6-26 Siskiyou just e Pass; Cook and Green Pass area 1371 Comment
  RSA238334  Arctostaphylos nevadensis Frederick W. Oettinger 1968-8-2 366 Siskiyou 0.1 mi. So. of Diamond Lake on Shasta Ridge'. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  SEINET3411144 Image available Arctostaphylos nevadensis James D. Montgomery 1969-7-24 80918 d Siskiyou Mount Shasta, Shasta National Forest. 1981 Comment
  UCD146712  Arctostaphylos nevadensis G. F. Hrusa 1998-7-5 14683 Siskiyou south side of pass on Happy Camp-O' Brien Road around side of State Boundary, above Indian Creek Camp. 750 Comment
  SEINET11991025  Arctostaphylos nevadensis S. Edwards, Roderick, W. 1983-1 102 Siskiyou on Cook & Green Pass E of pass 1524 Comment
  CAS-BOT-BC45412  Arctostaphylos nevadensis subsp. knightii C. Hart Merriam 1910-10-1 s.n. Siskiyou Happy Camp, Klamath River. Comment
  CAS-BOT-BC46460  Arctostaphylos patula G. D. Hanna; M. M. Hanna 1956-6-6 1000 Siskiyou Glass Mt. 2316 Comment
  CAS-BOT-BC46478  Arctostaphylos patula L. R. Abrams 1922-8-7 9917 Siskiyou 1 mi. s. of Weed. Comment
  CAS-BOT-BC46517  Arctostaphylos patula Doris K. Kildale 1928-8-20 6585 Siskiyou Lily Pad Lake, near Hancock Lookout on trail to Marble Mt. Comment
  HSC68451  Arctostaphylos patula Maralyn A. Renner 1980-6-26 1257 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC91294  Arctostaphylos patula Jennifer Whipple 1976-7-1 1223 Siskiyou Wagon Creek drainage on E face of Mount Eddy 2226 Comment
  OBI36634  Arctostaphylos patula David J. Keil 1983-7-3 17348 Siskiyou Slopes of Mt. Shasta along Memorial hwy Comment
  RSA15478  Arctostaphylos patula H. P. Bracelin 1936-4-15 830 Siskiyou N.E. slope of Mt. Eddy; 3 miles above Metcalf ranch house, 6 miles N.W. of Mt. Shasta City. 1341 Comment
  SEINET8754043 Image available Arctostaphylos patula Richard R. Halse 2015-1 9325 Siskiyou Southern part of city, west side of Interstate Hwy. 5, off of Mountain View Drive. 1083 Comment
  UC412767  Arctostaphylos patula Milo S. Baker 1897-8-1 94 Siskiyou Mayfield rd 10 mi e Bartle's 1524 Comment
  UC571216  Arctostaphylos patula Dorothy Tebbe 1929-7-6 27 Siskiyou near Etna Mills; Salmon Summit Comment
  CAS-BOT-BC46438  Arctostaphylos patula C. Hart Merriam 1910-10-4 s.n. Siskiyou Klamath River, 5 mi. below Hancock. Comment
  HSC73228  Arctostaphylos viscida Gail Newton 1980-6-20 531 Siskiyou Near Bald Mtn. 1326 Comment
  CAS-BOT-BC47017  Arctostaphylos viscida subsp. viscida E. B. Copeland 1903-7-14 3519 Siskiyou Klamathon. Comment
  POM77309  Arctostaphylos viscida subsp. viscida Geo D. Butler 1909-4-26 693 Siskiyou Oro Fisco hills. Comment
  RSA15794  Arctostaphylos viscida subsp. viscida C. B. Wolf 1927-8-26 1028 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  SEINET11942770  Arenaria congesta F. W. Hoffman 1950-1 3625 Siskiyou Baldy Mountain, western Comment
  SEINET3078307  Arnica Eleanor Burks Hart 1938-8-21 917 Siskiyou Upper Wright Lake. 2230 Comment
  CAS-BOT-BC82247  Arnica chamissonis Calvin McMillan; Malcom A. Nobs 1949-6-17 797 Siskiyou Grass Lake, Highway 97 Comment
  CAS-BOT-BC82250  Arnica chamissonis A. A. Heller 1938-7-13 15270 Siskiyou about a mile south of Bray Comment
  SEINET11837690  Arnica cordifolia H. P. Chandler 1901-1 1615 Siskiyou near Marble Mountain 2134 Comment
  HSC22128  Arnica discoidea J. O. Sawyer 1969-6-11 825 Siskiyou Lower slope near C.C.C. road on the N fork of Horse Range Creek 1357 Comment
  RSA237489  Arnica diversifolia Frederick W. Oettinger 1969-9-2 1596 Siskiyou On the cool north side of English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  HSC29113  Arnica latifolia Frederick W. Oettinger, R. F. Thorne 1969-8-6 1256 Siskiyou Marble Mtn. Wilderness Area, above flume in Tom's Lake Basin 1890 Comment
  HSC96413  Arnica mollis Gordon Leppig, J. Kalt 1996-7-9 373 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SBBG21764  Arnica mollis D. Myrick 1964-7-25 966 Siskiyou Panther Meadows below Ski Bowl Lodge, Mt Shasta 2346 Comment
  UC1409284  Arnica mollis Frederick W. Oettinger and R. F. Thorne 1969-8-6 1251 Siskiyou below, along steep gorge, (high lake basins in vicinity of English Peak) Tom's Lower Pond; Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  HSC29297  Arnica nevadensis Frederick W. Oettinger 1969-7-28 1082 Siskiyou High Lake Basins near English Peak, Marble Mountain Wilderness Area; NE-facing slope NW above Upper English Lake 2012 Comment
  JEPS80517  Arnica nevadensis Gilbert Muth 1966-7-19 431 Siskiyou Lookout Trail Marble Mt. Wilderness Area 1828 Comment
  UC609312  Arnica ovata Eleanor Burks Hart 1938-8-17 915 Siskiyou Upper Wright Lake 2225 Comment
  JEPS32671  Arnica viscosa Paul C. Hutchison 1962-8-2 938 Siskiyou between Panther Meadow and top of ski lift Mt. Shasta 2895 Comment
  UC572798  Arnica viscosa W. Bridge Cooke 1937-8-17 9228 Siskiyou Mt. Shasta 2590 Comment
  UC642579  Arnica viscosa Bassett Maguire 1939-8-8 13833 Siskiyou valley of Horse Camp Creek; Mount Shasta 2468 Comment
  UCD129189  Artemisia arbuscula J. M. Tucker; L. K. Mann 1963-8-18 3764 Siskiyou saddle between Marble Mountain and southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area. 2103 Comment
  HSC2270  Artemisia tridentata subsp. tridentata Geo. D. Butler 1910-9-12 1883 Siskiyou Butte Valley 1280 Comment
  SEINET516317  Artemisia tridentata subsp. tridentata Vernon H. Oswald 1998-9-16 9629 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Smas Neck Rd. and Hwy. 97 ca. 5 mi N of Macdoel. 1295 Comment
  HSC27674  Aruncus dioicus var. acuminatus Carl W. Mize 1972-6-8 32 Siskiyou Close to Deer Lick Creek 274 Comment
  RSA134151  Aruncus vulgaris Percy C. Everett, E. K. Balls 1959-10-24 23950 Siskiyou 7.4 miles NW from Forks, along Salmon River, Sawyers Bar to Somes Bar. 244 Comment
  CAS-BOT-BC400585  Asarum caudatum Alice Eastwood 1912-7-16 1140 Siskiyou McCloud Comment
  HSC69500  Asarum caudatum John Palmer 1980-8-13 779 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  RSA238012  Asarum caudatum Frederick W. Oettinger, R. F. Thorne 1969-8-6 1248 Siskiyou Pine Lake Basin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CAS-BOT-BC400694  Asarum hartwegii Alice Eastwood 1923-5-18 11819 Siskiyou Shasta Springs Comment
  SEINET10580360  Asclepias cordifolia Edward L. Greene 1876-6-19 Greene 862 Siskiyou Near Yreka Comment
  SEINET10637017  Asclepias fascicularis George D. Butler 1910-6-29 Butler 1613 Siskiyou Near Yreka Comment
  JEPS6285  Asclepias speciosa W. L. Jepson 1940-6-22 19971 Siskiyou Hornbrook 670 Comment
  JEPS80660  Asclepias speciosa W. B. and V. G. Cooke 1980-7-26 59013 Siskiyou Everitt Memorial Highway Mt. Shasta Comment
  POM211816  Aster eatonii L. C. Wheeler 1934-9-19 3284 Siskiyou Walker, Klamath River 518 Comment
  RSA233703  Aster occidentalis var. occidentalis R. F. Thorne, Fred Oettinger 1969-8-10 38972 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  POM24210  Astragalus californicus Geo. D. Butler 1909-4-14 593 Siskiyou Humbug Creek Comment
  CAS-BOT-BC177862  Astragalus curvicarpus var. curvicarpus Elmer I. Applegate 1935-6-5 9330 Siskiyou Lyons road, north boundary area, Lava Beds National Monument Comment
  JEPS107649  Astragalus filipes Lowell Ahart, John Dittes 2005-6-10 12092 Siskiyou Rocky hillside, north of the rock fence, 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 776 Comment
  NY658494  Astragalus filipes E. L. Greene 1876-6-14 847 Siskiyou Near Yreka Comment
  RSA715634  Astragalus gambelianus L. Ahart 2005-6-9 12013 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  CAS-BOT-BC192915  Astragalus purshii var. lectulus J. P. Moore 629 Siskiyou Shasta Valley Comment
  JEPS93850  Astragalus purshii var. purshii Vernon H. Oswald and Lowell Ahart 1998-6-11 9202 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
  UC1333511  Astragalus whitneyi John F. Davidson 1947-5-17 4635 Siskiyou 5 mi from Callahan (27 mi from Trinity Center, in draw on first summit Scott Mt. Road on n slope Scott Mt.); n slope Scott Mt., <nr> Callahan, 27 mi fr Trinity Center Comment
  CAS-BOT-BC198715  Astragalus whitneyi var. siskiyouensis Freed W. Hoffman 1948-7-7 2413 Siskiyou Scott Mountain Road, summit to Callahan 1249 Comment
  CHSC32932  Asyneuma prenanthoides J. P. Smith; Steve Selva 1970-6-15 3899 Siskiyou Oak Bottom Campground near Somes Bar. 228 Comment
  SJSU2585  Asyneuma prenanthoides H. L. Buckalew 1962-7-4 Siskiyou Red Bank Camp, N Fork Salmon R, Salmon Mts Comment
  RSA692501  Athyrium americanum M. B. Dunkle 1945-7-19 9230 Siskiyou Cliff above Sky High Lake Comment
  HSC67757  Athyrium distentifolium var. americanum John Palmer 1980-7-24 602 Siskiyou Elk Hole 1503 Comment
  UC1333324  Athyrium filix-femina var. cyclosorum Dorothy Parker 1949-6-30 Siskiyou stream that empties into Etna Creek; Salmon Mts 1176 Comment
  UC185243  Athyrium filix-femina var. cyclosorum Geo. D. Butler 1910-7-8 1675 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC66186  Athyrium filix-femina var. cyclosorum W. B. C. 1939-7-21 13700 Siskiyou outlet of the Municipal Spring above Howard 1280 Comment
  CAS-BOT-BC17614  Athysanus pusillus L. E. Smith 1913-5-28 311 Siskiyou Yreka. Comment
  CDA23336  Atriplex triangularis R. Pederson, G. Pederson 1979-9-26 112 Siskiyou Lower Klamath National Wildlife Refuge, Unit 3. Comment
  UC1053434  Balsamorhiza deltoidea Rimo Bacigalupi and Arthur Holmgren 1950-4-24 3140 Siskiyou cliffs opposite of, along Sacramento River on e side of canyon, directly opposite railroad shops Dunsmuir; Sacramento River Comment
  CAS-BOT-BC100050  Balsamorhiza hookeri Dorothy Parker 1951-5-20 515 Siskiyou on the summit of Scott Mountain 1624 Comment
  JEPS104986  Balsamorhiza lanata Dean W. Taylor 1996-6-18 15696 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1249 Comment
  UC1540008  Balsamorhiza sagittata M. Mitchell 1936-5-8 7 Siskiyou 1/4 mi e of, on road Symbol Bridge 1417 Comment
  JEPS47772  Berberis aquifolium Geo. D. Butler 1908-7-9 541 Siskiyou near Yreka (McNutty's field) Comment
  HSC58852  Berberis aquifolium var. aquifolium Marvin Butler 1971-7-11 93 Siskiyou Near Youngs Valley, close to the town of Cave Junction 1403 Comment
  HSC27230  Berberis aquifolium var. repens J. P. Smith, J. O. Sawyer 1971-9-18 4804 Siskiyou 0.2 mi. W of the jct. of Hwy. 3 and Rd. 8 N of Callahan. 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
  CAS-BOT-BC75724  Berberis nervosa Doris K. Kildale 1928-7-2 5363 Siskiyou Horn Creek trail up Salmon Summit. Comment
  CAS-BOT-BC76002  Berberis pumila Mrs. Eric Anderson 1923-4-19 s.n. Siskiyou Shasta Springs. Comment
  CHSC106314  Berula erecta Lowell Ahart; John Dittes 2010-7-30 16934 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CDA38215  Berula erecta Carrick 1943-1 s.n. Siskiyou Weed. 0 Comment
  RSA233715  Betula occidentalis Frederick W. Oettinger 1969-7-25 s.n. Siskiyou Scott Mts., Shasta-Trinity National Forest: ca. 15 air mi. SW of Weed along road to Kangaroo Lake. Comment
  CAS-BOT-BC102125  Bidens cernua Verne Grant; Irving Schneider 1947-8-26 8295 Siskiyou Irrigation ditch west of Tule Lake Comment
  CAS-BOT-BC413083  Bistorta bistortoides Wm. Bridge Cooke 1940-6-8 15127 Siskiyou In Mount Shasta City along an irrigation canal Comment
  UCSB24981  Bistorta bistortoides Keefe, Joseph 1967-7-11 Siskiyou Little Castle Lake, southeast of Castle Lake, 10 miles southwest of city of Mt. Shasta 1981 Comment
  UC166215  Blepharipappus scaber Geo. D. Butler 1909-4-28 590 Siskiyou Cherry Creek Comment
  UC375284  Boechera acutina Geo. D. Butler 1910-6-5 1537 Siskiyou Log Lake Comment
  CAS-BOT-BC16027  Boechera breweri subsp. breweri John Thomas Howell 1937-7-26 13568 Siskiyou Salmon River Canyon. Between Big Flat and Caribou gulch. Comment
  CAS-BOT-BC16046  Boechera breweri subsp. shastaensis J. H. Thomas 1954-5-14 4175 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. 1219 Comment
  JEPS84108  Boechera divaricarpa L. R. Heckard with J. Hickman et al. 1986-7-17 6549 Siskiyou ca 1 mi ne Buckhorn 2100 Comment
  CAS-BOT-BC13813  Boechera howellii John Thomas Howell 1937-7-26 13538 Siskiyou Caribou Mountain. 2438 Comment
  UCD114342  Boechera howellii Robert E. Preston 1984-7-26 495 Siskiyou Green Butte, on s slope of Mt. Shasta. Comment
  UCD114343  Boechera howellii Robert E. Preston 1996-7-23 980 Siskiyou 1 mi e of Medicine Lake. 2072 Comment
  UC1783914  Boechera pauciflora Geo. D. Butler 1908-8-4 125 Siskiyou head of Shackelford Creek 1676 Comment
  CAS-BOT-BC14666  Boechera rectissima Alice Eastwood 1921-7-30 11003 Siskiyou Soda Creek. Comment
  CAS-BOT-BC25413  Boechera retrofracta George Dexter Butler 1910-7-8 1663 Siskiyou Log Lake-Shackleford Creek. 1219 Comment
  CAS-BOT-BC25426  Boechera retrofracta Alice Eastwood 1923-5-29 11989 Siskiyou Cantara. Comment
  CAS-BOT-BC25432  Boechera retrofracta Lincoln Constance; Reed Clark Rollins 1942-5-13 2917 Siskiyou Klamath-Siskiyou Region. Scott River 10 miles southwest of Scott Bar. 609 Comment
  JEPS53079  Boechera retrofracta Harley P. Chandler Jun 1901 1663 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  UC171182  Boschniakia strobilacea unknown 1892-1 Siskiyou Sissons. Comment
  UC1408831  Botrychium multifidum Frederick W. Oettinger 1968-8-7 443 Siskiyou inlet to Tobacco Lake Salmon Mountains, Marble Mountain Wilderness area Comment
  UCD78124  Botrychium multifidum Robert E. Preston 2001-8-26 1762 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1883 Comment
  CAS-BOT-BC418452  Boykinia major Ira L. Wiggins 1955-7-22 13447 Siskiyou S Fork of Salmon River, 9.5 mi. above Cecilville 1066 Comment
  UC1190138  Boykinia major Ira L. Wiggins 1955-7-22 13447 Siskiyou 9.5 mi above Cecilville (gravel bar in S Fork of Salmon River); South Fork of Salmon River 1066 Comment
  CAS-BOT-BC418459  Boykinia major Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Comment
  HSC29460  Boykinia major Frederick W. Oettinger 1968-8-15 525 Siskiyou Marble Mountain Wilderness Area, E bank of Hancock Lake 1936 Comment
  HSC60813  Boykinia major Ruby Van Deventer 1962-8-15 Siskiyou Bell Echo Camp in Youngs Valley 1220 Comment
  RSA211105  Boykinia major William J. Ferlatte 1966-8-17 395 Siskiyou Caribou Basin; Trinity Alps 1982 Comment
  RSA84355  Boykinia major F. W. Peirson 1926-7-11 7022 Siskiyou About half way up grade W of Etna or Etna Mills. Comment
  SEINET6031128  Boykinia major W. Roderick 1967-7-23 s.n. Siskiyou Cook and Green Pass, Horsetail Falls 1219 Comment
  UC75828  Brickellia grandiflora Milo S. Baker 1899-7-1 Siskiyou e slope of Mt. Shasta Mt. Shasta Comment
  OBI55536  Brickellia greenei David J. Keil 1992-7-24 23562 Siskiyou Klamath Natl forest E of Callahan. 2.5 mi N of Kangaroo Lake on Rail Crk rd Comment
  RSA96963  Brickellia greenei Percy C. Everett, E. K. Balls 1954-10-13 20277 Siskiyou Seiad Creek, road to Kangaroo Mountain, 7.2 miles NE from Hwy 96. 823 Comment
  UC1040686  Brickellia greenei Beecher Crampton 1956-8-21 3840 Siskiyou bench above Sacramento River, just below junction of the Middle Fork with the South Fork Sacramento River 1112 Comment
  JEPS7633  Brodiaea elegans subsp. elegans Geo. D. Butler 1909-7-20 888 Siskiyou Highland Mine Comment
  CAS-BOT-BC144102  Bromus Arthur Menzies 1962-7-26 s.n. Siskiyou Morgan Meadows, base of Mount Eddy. 1706 Comment
  UCD58313  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3388 Siskiyou At Weed. Comment
  CHSC60567  Bromus carinatus var. carinatus L. P. Janeway 1983-8-26 591 Siskiyou Siskiyou Mountains; at Poker Flat. Front edge of the upper part of the meadow. 1524 Comment
  CAS-BOT-BC148794  Bromus carinatus var. marginatus K. T. Stillman 1976-7-23 305 Siskiyou Marble Mountain Wildnerss Area. 2011 Comment
  CAS-BOT-BC148800  Bromus carinatus var. marginatus William A. Dayton 1913-8-14 456 Siskiyou Shasta Forest. Ash Creek Sink. 1219 Comment
  UCD59216  Bromus carinatus var. marginatus R. Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road from Happy Camp to O'Brien, Oregon. Comment
  UCD58489  Bromus commutatus P. B. Kennedy 1923-7-29 s.n. Siskiyou Mt. Shasta. Camp Sisson. Comment
  SEINET14341973  Bromus diandrus R. E. Frenkel 1963-1 236 Siskiyou W. of Everitt Memorial Hwy, 1.7 mi N of McCloud River RR Crossing, near Mount Shasta. 1291 Comment
  CAS-BOT-BC162473  Bromus laevipes Lewis S. Rose 1945-6-18 45087 Siskiyou Horse Creek & Klamath River. 502 Comment
  CAS-BOT-BC162137  Bromus orcuttianus W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Mountain. Comment
  SACT000689  Bromus sterilis Isabelle Kimber 1934-6-9 Siskiyou Abundant but thin stand. Chaparral. Comment
  UCD59740  Bromus suksdorfii Robert E. Preston 2001-7-21 1742 Siskiyou Klamath National Forest, Rainbow Mountain. 2255 Comment
  UC164919  Bromus tectorum Geo. D. Butler 1908-6-25 474 Siskiyou near Yreka Comment
  UC70736  Bromus tectorum T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
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Jul 21 2015
  NY664732  Bromus tectorum var. glabratus A. Eastwood 1912-7-17 1126 Siskiyou McCloud Comment
  RSA30370  Cacaliopsis nardosmia Lincoln Constance, Reed C. Rollins 1942-5-13 2906 Siskiyou Klamath-Siskiyou Region: Klamath River 4 miles east of Seiad. 457 Comment
  UC166058  Cacaliopsis nardosmia Geo. D. Butler 1909-5-30 760 Siskiyou Humbug Mountain Comment
  RSA238387  Calamagrostis canadensis Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1184 Siskiyou north of Tobacco Lake. Salmon Mountain; The High Lake Basins in the Vicinity of English Peak Marble Mountain Wilderness Area. 1890 Comment
  HSC30655  Calamagrostis canadensis var. langsdorffii Frederick W. Oettinger, R. F. Thorne 1969-8-4 1184 Siskiyou Marble Mtn. Wilderness Area, on moraine N of Tobacco Lake 1890 Comment
  HSC31104  Calamagrostis canadensis var. langsdorffii Frederick W. Oettinger 1969-9-4 1652 Siskiyou Marble Mtn. Wilderness Area, Tobacco Lake 1890 Comment
  HSC24228  Calamagrostis koelerioides J. O. Sawyer 1969-8-1 1645 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  JEPS83988  Calamagrostis koelerioides L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6384 Siskiyou ca 1.5 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  RSA239130  Calamagrostis koelerioides Frederick W. Oettinger 1968-8-23 605 Siskiyou Below overlook of English Lake, on slope of English Peak, in a meadow on trail to Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  UCD57332  Calamagrostis koelerioides Geo. D. Butler 1910-7-7 1651 Siskiyou Shackleford Creek. Comment
  HSC68462  Calamagrostis nutkaensis Maralyn A. Renner 1980-7-4 1459 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  HSC92674  Calocedrus decurrens Jennifer Whipple 1977-8-5 2191 Siskiyou Slopes near Little Crater Lake 2195 Comment
  RSA121614  Calochortus coeruleus G. D. Barbe 1955-7-6 115 Siskiyou Dry areas above NE shore of Taylor lake, Salmon Mtns. 1951 Comment
  RSA360080  Calochortus coeruleus Louis C. Wheeler 1934-6-7 2655 Siskiyou North Hungry Creek. 1220 Comment
  UC722091  Calochortus elegans C. L. Hitchcock and J. S. Martin 1939-7-9 5335 Siskiyou near King's Castle; Paradise Lake 1767 Comment
  RSA17447  Calochortus elegans var. nanus Elmer I. Applegate 1895-5-28 725 Siskiyou Sissons. Comment
  CAS-BOT-BC488610  Calochortus elegans var. nanus L. E. Smith 1914-6-9 713 Siskiyou Sisson Comment
  HSC60468  Calochortus elegans var. nanus Carl Wishner 1978-7-19 552 Siskiyou Monument Lake, Marble Mtn. Wilderness Area 1768 Comment
  HSC81989  Calochortus nudus Thomas W. Nelson, Jane P. Nelson 1979-6-16 4867 Siskiyou Along SR 3, 2.2 mi. N of Scott Mtn. Summit 1341 Comment
  UC3464  Calochortus nudus W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sisson Mount Shasta Comment
  JEPS80557  Calochortus tolmiei Gilbert Muth 1965-8-6 189 Siskiyou backside Black Mountain; Marble Mountain Wilderness Area 2072 Comment
  UC454387  Calochortus tolmiei I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1828 Comment
  JEPS82681  Caltha biflora Wayne Roderick 1984-6-7 Siskiyou North side of Mt. Eddy road 17. 1676 Comment
  UC1037377  Caltha biflora Douglas Barbe 1955-7-6 124 Siskiyou Klamath Mountains. Boggy area at southeast shore of Taylor Lake; Salmon Mountains. 1950 Comment
  CAS-BOT-BC181513  Caltha leptosepala Ira L. Wiggins 1950-5-28 12367 Siskiyou Small bog on side of ridge above Grouse Creek, ca. 1.5 mi. from Carmen Lake 1584 Comment
  CAS-BOT-BC181517  Caltha leptosepala Gilbert Muth 1966-7-8 352 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC4947  Caltha leptosepala J. O. Sawyer 1968-6-25 320 Siskiyou Along Horse Range Creek 1829 Comment
  CAS-BOT-BC181499  Caltha leptosepala Lillian Mott 1976-7-9 48 LM76 Siskiyou Meadow below north slope of Lily Pad Lake ca. 7 mi. west of Cook and Green Pass 2011 Comment
  UC562934  Calycadenia fremontii Elmer I. Applegate 1923-9-10 3983 Siskiyou mouth of Salmon River Klamath River, Salmon River Comment
  HSC4943  Calypso bulbosa J. O. Sawyer 1968-6-18 199 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  UC164385  Calypso bulbosa Geo. D. Butler 1910-6-5 1512 Siskiyou Shackleford Creek Comment
  CHSC4526  Calyptridium umbellatum J. E. Bowlin 1967-7-18 63 Siskiyou On roadside, on the side of a bank. Ca. 1.5 mi w of Mount Shasta Ski Bowl. 2286 Comment
  SBBG30589  Calyptridium umbellatum D. Myrick 1968-6-27 2043 Siskiyou trail to Lake Josephine above Carter's Ranch, 5 mi S of Big Flat, head of Coffee Crk 1828 Comment
  SD53343  Calyptridium umbellatum Darley F. Howe 1962-8-6 3410 Siskiyou Mt. Shasta 2440 Comment
  CAS-BOT-BC221255  Calystegia malacophylla subsp. malacophylla A. A. Heller 1919-6-27 13280 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC221260  Calystegia malacophylla subsp. malacophylla A. A. Heller 1919-6-27 13280 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  UC1181813  Camissonia contorta Dorothy Parker 1950-4-26 406 Siskiyou Scott Valley Siskiyou Mountains 883 Comment
  UC131864  Campanula prenanthoides H. E. Brown Jul 15 1897-Jul 31 1897 527 Siskiyou s side Mt. Shasta 1524 Comment
  SEINET10463266  Campanula prenanthoides Samuel B. Parish 1902-9-13 Parish E 2000 Siskiyou DUNSMUIR MOIST BANK Comment
  POM148010  Campanula rotundifolia J. B. Feudge 1927-7-22 1776 Siskiyou Trail to Mt. Shasta City to Mt. Eddy. Comment
  SEINET10464348  Campanula rotundifolia Holt 1932-7-10 Holt s.n. Siskiyou Mount Eddy 1829 Comment
  UC334030  Campanula scouleri unknown Siskiyou near Shasta Comment
  SEINET10463794  Campanula scouleri Louis Krautter 1905-7-7 Krautter s.n. Siskiyou Near Sisson 1067 Comment
  JEPS109882  Cardamine bellidifolia var. pachyphylla Dean W. Taylor 2005-8-18 19468 Siskiyou Dry Creek Peak, cirque on north face at headwaters Antelope Creek 1950 Comment
  JEPS53394  Cardamine californica var. integrifolia Geo. D. Butler 1909-4-11 649 Siskiyou Shasta Springs Comment
  SEINET6332594 Image available Carex abrupta Unknown 2008-1 9475 Siskiyou Klamath Ranges. Siskiyou Mountains; at end of short spur road into top of Alex Hole; 1.0 km east-southeast of Condrey Mountain. Condrey Mtn. 7.5' quad. Comment
  SEINET10585936  Carex abrupta David Castaner 1989-6-19 Castaner 10240 Siskiyou Along Hwy 3 Between Callahan and Gazelle along a rocky stream. Comment
  UC1738777  Carex amplifolia Dean W. Taylor 1993-7-30 13986 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 miles east of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
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Feb 9 2009
  CAS-BOT-BC17964  Carex angustata W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow near Sissons. Comment
  HSC85806  Carex aquatilis var. dives L. P. Janeway 1983-8-28 637 Siskiyou Poker Flat, middle of meadow 1529 Comment
  CHSC40185  Carex bolanderi L. P. Janeway 1982-8-21 168 Siskiyou SE-facing slope near a trickly-creeklet in Twin Valley. 1584 Comment
  HSC76799  Carex bolanderi L. P. Janeway 1982-6-22 18 Siskiyou Next to creek 15 m below road from West Branch Guard Station towards Indian Creek 671 Comment
  JEPS116609  Carex brainerdii Julie Kierstead 1997-5-13 97009 Siskiyou Mt. Shasta Rnger District. Parks Creek Road 1 mile above junction with 42N19, 6 miles west of Weed. 1463 Comment
  CHSC106472  Carex breweri Peter F. Zika 2009-8-16 24605 Siskiyou Cascade Range Highlands (CaRH). Near top of Road A10 (Everett Memorial Highway), S slope of Mt. Shasta. 2400 Comment
  HSC82004  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1979-6-16 4848 Siskiyou Along Hwy. 3, 2.7 mi. N of Scott Mtn. Summit 1341 Comment
  HSC73326  Carex concinnoides Gail Newton 1980-6-20 488 Siskiyou Near Bald Mtn. 1097 Comment
  HSC76384  Carex concinnoides L. P. Janeway 1982-6-22 21 Siskiyou 400 m NE of West Branch Guard Station near road to Indian Creek, 15 m below road, near creek 671 Comment
  HSC67677  Carex echinata subsp. echinata John Palmer 1980-7-24 598 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  UC1265328  Carex echinata subsp. echinata Frederick W. Oettinger and R. F. Thorne 1969-8-7 1270 Siskiyou margin of English Lake Salmon Mts., Marble Mountain Wilderness Area, English Lake 1767 Comment
  UCD140249  Carex exsiccata A. H. Murphy 1958-8-4 58 A Siskiyou Little Elk Lake Marble Mts. 1676 Comment
  CHSC45249  Carex feta L. P. Janeway 1983-5-29 315 Siskiyou Drainage ditch on north side of Scott River Rd (on north side of Scott River) opposite Indian Scotty USFS campground. 762 Comment
  CAS-BOT-BC20747  Carex fracta William Bridge Cooke 1938-6-24 11085 Siskiyou Mt. Shasta. 1524 Comment
  CAS-BOT-BC20750  Carex fracta Lewis S. Rose 1936-7-29 36710 Siskiyou Shasta Springs. 762 Comment
  SEINET7485217 Image available Carex fracta Peter F. Zika 2009-1 24602 Siskiyou at McBridge Springs Campground, SW slope of Mt. Shasta; Cascade Range Highlands (CaRH) 1470 Comment
  RSA237306  Carex fracta Frederick W. Oettinger 1968-8-5 729 Siskiyou Local population at the springy area 2/3 s of the way up the English Lake-Diamond Lake trail. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1898 Comment
  JEPS101096  Carex geyeri Dean W. Taylor 1997-6-12 16065 Siskiyou hillslopes at base of Scott Mountains at mouth of Willow Creek, Shasta Valley); ca. 4 miles west of Gazelle 944 Comment
  JEPS100914  Carex gigas Dean W. Taylor 1988-7-9 9950 Siskiyou Castle Lake region, in cirque and ridgetop above Heart Lake 1950 Comment
  SEINET7561221 Image available Carex halliana Juha Pykala, D. H. Norris 1987-7-8 2432 Siskiyou Little Medicine Lake, between lake and road. 2042 Comment
  SEINET7561712 Image available Carex hoodii John Thomas Howell 1937-7-21 13196 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CHSC82806  Carex inops subsp. inops L. P. Janeway 2002-7-12 7623 Siskiyou High Cascade Range. 3.5 km south of the top of Ash Creek Butte; 0.2 km southwest of Road 19 (Military Pass Road); 0.6 km north-east of confluence of Ash Creek and Brewer Creek. 1573 Comment
  CHSC86243  Carex inops subsp. inops Martin J. Lenz 2003-6-9 18 Siskiyou 0.3 mi. up 100R1 logging road from Tom Young Rd. approx. 1 mi. WNW of Pondosa. UTM: Zone 10 608838N 4562152N. 1255 Comment
  CAS-BOT-BC35521  Carex jonesii William J. Ferlatte 1967-6-27 531 Siskiyou Big Flat, between campground and S. Fork of the Salmon River 1524 Comment
  CAS-BOT-BC28430  Carex lenticularis var. lipocarpa John Thomas Howell 1939-8-3 14960 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC31622  Carex luzulina var. luzulina J. M. Tucker 1950-7-23 1944 Siskiyou Panther Meadows, south slope of Mt. Shasta. 2407 Comment
  SEINET7566760 Image available Carex mariposana Frederick W. Oettinger 1968-9-8 733 Siskiyou High Lake Basin in the vicinity of English Peak, Marble Mountains Wilderness Area. Area of late snow-hold, southeast of Tom's Lake. 2149 Comment
  HSC59011  Carex mertensii Marvin Butler 1971-7-21 179 Siskiyou Near Bell Echo Camp, close to the town of Cave Junction 1433 Comment
  CAS-BOT-BC32049  Carex multicaulis Alice Eastwood; John Thomas Howell 1940-6-10 7900 Siskiyou Hatchet Mt. Comment
  JEPS25660  Carex multicostata Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7303 Siskiyou 4 air-line mi nne Preston Peak (meadow at Twin Valley just e of Del Norte county line); Siskiyou Mts., watershed of Indian Creek, Twin Valley 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
  UC642550  Carex nebrascensis J. W. Stacey 1939-6-23 13502 Siskiyou near Municipal Spring (above Howard); Mount Shasta Comment
  HSC71131  Carex pachystachya Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4497 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  CHSC86629  Carex praegracilis Jenny Marr 1993-7-1 12 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA715932  Carex praegracilis L. Ahart, John Dittes 2005-6-10 12108 Siskiyou 30yards east of the Shasta River, about 60 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 777 Comment
  HSC73345  Carex praticola Gail Newton 1980-6-20 456 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC118785  Carex preslii Louis C. Wheeler 1934-8-6 3049 Siskiyou Bear Ground Gulch off Jaynes Canyon. Siskiyou Mts. 1676 Comment
  HSC30554  Carex preslii Frederick W. Oettinger 1969-8-19 1465 Siskiyou Marble Mtn. Wilderness Area, Abbott's Basin 1860 Comment
  HSC91376  Carex raynoldsii Jennifer Whipple 1978-10-6 2437 Siskiyou Dale Creek drainage on N face of Mt. Eddy. 2195 Comment
  CAS-BOT-BC118214  Carex rossii L. P. Janeway 1983-8-27 621 Siskiyou Preston Peak quad, Along the Twin Valley-Poker Flat trail. 1676 Comment
  HSC470  Carex rostrata William J. Ferlatte 1966-8-3 293 Siskiyou Josephine Lake basin 1677 Comment
  HSC85842  Carex rostrata L. P. Janeway 1983-7-24 452 Siskiyou Poker Flat: slope between upper & lower parts of meadow. 1524 Comment
  HSC71108  Carex scabriuscula Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4500 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC76823  Carex scabriuscula L. P. Janeway 1982-8-13 125 Siskiyou 70 m N of Bear Lake at edge of seasonal channel 1814 Comment
  RSA0089579  Carex scabriuscula Dean Wm. Taylor 2002-8-7 18296 Siskiyou Logging road below Tamarack Lake, East Fork Trinity River; seepage area ca. 300 m south of area shown on topographic maps as 4991T. 0.2 mi N of the creek crossing. 1546 Comment
  UCD140807  Carex scabriuscula J. T. Howell; T. C. Fuller, G. D. Barbe 1980-5-20 2763 Siskiyou north of Trinity Center, south side of Trinity River, west of Highway 3, 0.4 mile north of Coffee Creek Road. 733 Comment
  HSC62617  Carex scopulorum Ruby Van Deventer Siskiyou Youngs Valley Comment
  CHSC71608  Carex serratodens Vernon H. Oswald; Lowell Ahart 1998-8-3 9420 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 3.9 mi southeast of Gazelle-Callahan Rd. at its in-tersection with USFS 41N10. 1554 Comment
  CAS-BOT-BC117253  Carex spectabilis John Thomas Howell 1937-7-25 13481 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CAS-BOT-BC117257  Carex spectabilis John Thomas Howell 1939-8-9 15232 Siskiyou Ridge South of Marble Valley, Marble Mts. Comment
  HSC7172  Carex spectabilis J. T. Howell 1939-8-9 15226 Siskiyou Marble Mtns., S of Marble Valley Comment
  SEINET7575712 Image available Carex spectabilis John Thomas Howell 1939-8-8 15189 Siskiyou Black Mt, Marble Mts. Comment
  CAS-BOT-BC117014  Carex straminiformis Paul Clifford Hutchison 1962-8-2 929 Siskiyou Exposed S slopes, Mt. Shasta, between Panther Meadow and top of ski lift. 2743 Comment
  CAS-BOT-BC117067  Carex straminiformis William Henry Brewer 1398 Siskiyou Mt. Shasta Comment
  CAS-BOT-BC115837  Carex subfusca Alice Eastwood; John Thomas Howell 1937-6-26 5060 Siskiyou Near Forks of Salmon Comment
  CAS-BOT-BC115849  Carex subfusca William Bridge Cooke 1938-9-17 11690 Siskiyou Mt Shasta Spring. 2438 Comment
  CAS-BOT-BC115842  Carex subfusca W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow. Comment
  POM211462  Carex subfusca L. C. Wheeler 1934-7-2 2841 Siskiyou Little Smoky Creek, Sterling Mt., Siskiyou Mts. 1280 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
  SEINET515839  Carex whitneyi Vernon Oswald 1997-7-28 8799 Siskiyou Schonchin Spring Campground at Medicine Lake. 2057 Comment
  CAS-BOT-BC59704  Cassiope mertensiana Doris K. Kildale 1929-7-20 8582 Siskiyou E. spur of Preston Peak above Rockefeller Lake. 2133 Comment
  RSA211455  Cassiope mertensiana subsp. ciliolata William J. Ferlatte 1966-8-5 351 Siskiyou Caribou Mtn., Open granite slopes and ridges. Near summit. 2470 Comment
  CAS-BOT-BC248986  Castilleja David D. Keck 1938-8-8 4873 Siskiyou Siskiyou Co. at Trinity Co. line: Scott Mountain Divide, between Scott Mtn. and Craggy Peak 1675 Comment
  CAS-BOT-BC241136  Castilleja applegatei subsp. pinetorum L. E. Smith 1913-6-29 436 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC241138  Castilleja applegatei subsp. pinetorum John Thomas Howell 1939-8-4 15037 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  HSC72576  Castilleja applegatei subsp. pinetorum J. P. Smith 1976-5-5 8702 Siskiyou Road between Forks of Salmon and Somes Bar. 366 Comment
  UC61065  Castilleja applegatei subsp. pinetorum W. A. Setchell, C. C. Dobie Jul 1902 Siskiyou Sisson; Mount Shasta Comment
  JEPS19005  Castilleja arachnoidea H. K. Wagnon 1957-8-11 1699 Siskiyou 1 mi w Military Pass Rd. (along rd to Brewer Creek, e slope of Mt Shasta); North Coast Ranges, Mt. Shasta Comment
  UC618868  Castilleja arachnoidea Alice Eastwood 1938-8-21 11535 Siskiyou Horse Camp Flats Mount Shasta (sw slope of Mount Shasta) 2438 Comment
  POM42530  Castilleja arachnoidea Geo. D. Butler 1910-7-9 1712 Siskiyou Marble Mountain. 1829 Comment
  RSA142601  Castilleja arachnoidea subsp. shastensis P. A. Munz 1960-8-22 24186 Siskiyou Panther Meadows, Mt. Shasta. 2530 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
  JEPS76188  Castilleja miniata T. I. Chuang with Fei-Mei Chuang 1977-7-22 7634 Siskiyou Panther Meadow; Mt. Shasta 2194 Comment
  UC164077  Castilleja miniata Geo. D. Butler 1910-7-9 1692 Siskiyou Shackleford Creek 1219 Comment
  UC618701  Castilleja miniata unknown 1938-9-8 11606 Siskiyou on talus beside Little Red Butte; Mount Shasta Comment
  CAS-BOT-BC254113  Castilleja miniata Mrs. H. C. Cantelow 1940-6-2 s.n. Siskiyou 9 mi. n.w. of Tennant, Buttle Cr. Meadow Comment
  RSA143625  Castilleja miniata P. A. Munz 1960-8-22 24178 Siskiyou Panther Meadows, Mt. Shasta. 2317 Comment
  RSA211403  Castilleja miniata William J. Ferlatte 1967-7-26 764 Siskiyou NW side of Caribou Mtn. Trinity Alps. 1829 Comment
  SEINET3159239  Castilleja oreopola G. D. Butler 1910-6-3 1472 Siskiyou Quartz Valley Comment
  HSC72470  Castilleja pruinosa J. P. Smith 1973-5-5 6448 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  UC1187076  Castilleja pruinosa David D. Keck 1940-6-13 5175 Siskiyou 9 mi s Macdoel (on U.S. Hwy 97, between Dorris and Weed) 1463 Comment
  UC1341871  Castilleja pruinosa Noel H. Holmgren and James L. Reveal 1966-6-9 2679 Siskiyou 4 mi n Weed (U.S. Hwy 97); Shasta Valley 1158 Comment
  RSA428399  Castilleja pruinosa M. B. Dunkle 1944-7-18 9132 Siskiyou Siskiyou National Forest. Comment
  RSA700165  Castilleja pruinosa Noel Holmgren, James L. Reveal 1966-6-9 2674 Siskiyou Siskiyou mountains, O'Brien-Happy Camp road, 15 miles north of Happy Camp (Indian Creek drainage). 960 Comment
  CAS-BOT-BC241084  Castilleja schizotricha G. J. Muth 1969-8-6 1200 Siskiyou Boulder Peak 2529 Comment
  HSC76640  Castilleja schizotricha K. T. Stillman 1976-6-25 102 Siskiyou Marble Mt. Wilderness Area, NE facing on Black Mt. 2134 Comment
  JEPS79524  Castilleja tenuis L. R. Heckard 1980-7-12 5407 Siskiyou ca 10 air mi ne Weed (meadow border at sw end of Grass Lake, n of state highway maintenance station); Grass Lake Comment
  CAS-BOT-BC47942  Ceanothus O. V. Matthews 1939-7-7 13 Siskiyou From west side of Mohawk Mine-frog Pond Trail 1219 Comment
  CAS-BOT-BC48658  Ceanothus cordulatus John Thomas Howell 1937-7-21 13189 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC48710  Ceanothus cordulatus Wm. Bridge Cooke 1939-7-14 13674 Siskiyou Along the Sisson Southern Trail in the chaparral 1219 Comment
  UC144559  Ceanothus cordulatus A. A. Heller 1905-6-5 7968 Siskiyou betw Shasta Retreat and Shasta Springs Comment
  RSA399046  Ceanothus cuneatus Bonnie C. Templeton 1960-6-21 8534 Siskiyou Between California State line and the Agricultural Inspection Station Comment
  CAS-BOT-BC49196  Ceanothus cuneatus William A. Dayton 1913-6-14 245 Siskiyou E. Fk. of Scott River Range - Shasta Forest 1615 Comment
  RSA399890  Ceanothus integerrimus E. E. Stanford 1930-6-15 1588 Siskiyou 1 mile north of Dunsmuir. Comment
  CAS-BOT-BC50688  Ceanothus integerrimus var. macrothyrsus A. A. Heller 1905-6-1 7926 Siskiyou Between Dunsmuir and Upper Soda Spring Comment
  RSA95333  Ceanothus integerrimus var. macrothyrsus E. E. Stanford 1930-6-15 1586 Siskiyou 1 mile north of Dunsmuir. Comment
  CAS-BOT-BC51170  Ceanothus leucodermis C. G. Pringle August 13 s.n. Siskiyou unspecified 914 Comment
  HSC99929  Ceanothus prostratus J. P. Smith, & J. O. Sawyer 2011-7-31 13347 Siskiyou Sugar Creek Trail W of Callahan 1463 Comment
  POM85998  Ceanothus prostratus Geo. D. Butler 1910-6-4 1501 Siskiyou Quartz Valley. Comment
  SJSU6488  Ceanothus prostratus R. W. Trivelpiece 1972-6-9 103 Siskiyou c. 4 mi E of Grass L 1524 Comment
  UCD77491  Ceanothus prostratus Robert E. Preston 2001-7-21 1737 Siskiyou Klamath National Forest, Rainbow Mountain, T42N R1W se 1/4 of ne 1/4 Section 22 2194 Comment
  SJSU6540  Ceanothus velutinus R. W. Trivelpiece 1973-6-22 154 Siskiyou on trail to Big Duck & Little Duck L, Scott R drainage c. 7 mi W of Callahan 1920 Comment
  CAS-BOT-BC52807  Ceanothus velutinus var. velutinus Wm. Bridge Cooke 1938-6-24 11104 Siskiyou Mount Shasta - Sisson Southern Trail, in Diller Canyon 2743 Comment
  CAS-BOT-BC52812  Ceanothus velutinus var. velutinus John Thomas Howell 1939-8-3 15016 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC52845  Ceanothus velutinus var. velutinus Doris K. Kildale 1928-8-20 6633 Siskiyou Head of North Fork of Salmon River at Finley's Upper Camp Comment
  SD98873  Centaurea cyanus Darley F. Howe 1977-7-2 4982 Siskiyou 7 miles west of Fort Jones, Scott River Road 669 Comment
  CDA7266  Centaurea maculosa Steelman, Casson 1996-7-1 Siskiyou I-5 at Mott Road interchange north of Dunsmuir. 0 Comment
  RSA190721  Centaurea maculosa T. C. Fuller 1967-8-15 16261 Siskiyou West side of Hwy. 97 to Weed, 3 miles south of Macdoel, Butte Valley Comment
  CAS-BOT-BC284487  Centaurea solstitialis W. B. Cooke; V. G. Cooke 1962-8-19 33547 Siskiyou Mt. Shasta 1280 Comment
  CAS-BOT-BC288797  Centromadia fitchii Louis C. Wheeler 1934-10-6 3309 Siskiyou Shasta Valley 2 miles SE of Yreka 853 Comment
  JEPS38136  Centromadia fitchii Geo. D. Butler 1908-7-23 507 Siskiyou Yreka Comment
  HSC103178  Cerastium arvense subsp. strictum Dana York 2011-9-8 3088 Siskiyou Klamath National Forest, slopes of Kings Castle 2175 Comment
  CDA3354  Cerastium dichotomum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2778 Siskiyou Yreka. West of Motel 6, south of town, north of Greenhorn Creek Road. Comment
  CDA3359  Cerastium dichotomum J. Di Tomaso 2002-5-17 s.n. Siskiyou 8 miles northeast of Montague. On York Road, 300 m east of intersection with Mulloy Road. 0 Comment
  CDA3360  Cerastium dichotomum T. C. Fuller 1962-5-18 8745 Siskiyou B. M. Long property, Little Shasta Road, 5 miles east of Montague. 0 Comment
  HSC4098  Cerastium glomeratum Geo. D. Butler 1909-4-14 636 Siskiyou Yreka Comment
  UC71782  Cercis occidentalis Mrs. R. W. Summers 1881-1 3103 Siskiyou base of mt. near Southern's Station; Mt. Shasta Comment
  CAS-BOT-BC135402  Cercocarpus betuloides var. betuloides Carl B. Wolf 1927-8-26 1032 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CAS-BOT-BC147684  Cercocarpus betuloides var. betuloides Geo. D. Butler 1910-5-30 1435 Siskiyou Humbug Mountain 1066 Comment
  UC165261  Cercocarpus betuloides var. betuloides Geo. D. Butler 1910-4-16 1179 Siskiyou Klamath Hills Comment
  UC585107  Cercocarpus betuloides var. betuloides E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1922 Siskiyou about 7 mi sw of Yreka (s of hwy from Yreka to Fort Jones); Forest House Mountain 1371 Comment
  HSC18572  Cercocarpus ledifolius D. M. Thomson 1965-7-10 122 Siskiyou California Lava Beds National Monument, by Information Center parking lot Comment
  UC1539981  Cercocarpus ledifolius var. ledifolius M. H. Mitchell 1936-5-21 Siskiyou Modoc Lava Beds National Monument, s of the road to Devil's Gate Modoc Lava Beds National Monument 1310 Comment
  CAS-BOT-BC276769  Chaenactis douglasii var. douglasii Alice Eastwood 1912-9-1 2078 Siskiyou Mount Shasta Comment
  UC456030  Chaenactis douglasii var. douglasii I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1524 Comment
  UC699708  Chaenactis douglasii var. douglasii W. Bridge Cooke 1939-8-10 13872 Siskiyou area between Squaw Valley Creek and Mud Creek Canyon; Mount Shasta 2590 Comment
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Jul 12 2010
  CAS-BOT-BC276762  Chaenactis douglasii var. douglasii Elmer I. Applegate 1935-6-12 9532 Siskiyou Between Captain Jack's and Three Sisters, Lava Beds National Monument Comment
  UCD130297  Chaenactis douglasii var. douglasii J. M. Tucker 1950-7-24 1962 Siskiyou outskirts of Dorris. Comment
  CAS-BOT-BC141585  Chamaebatiaria millefolium Oliver V. Matthews 1939-7-13 35 Siskiyou Goose Nest Grove-Goose [Gosse] Nest Region 1828 Comment
  UCD133317  Chamaecyparis lawsoniana D. Sanchez-Mata 1997-9-19 s.n. Siskiyou Klamath National Forest. Happy Camp-O'Brian, Indian Creek Road. Jefferson State Scenic Byway. 1400 Comment
  JEPS47361  Chamaesaracha nana L. R. Heckard 1966-6-20 1530 Siskiyou about 1 mi ne of town of Mount Shasta (on old McCloud Road); old McCloud Road 1127 Comment
  SBBG25916  Chamaesyce serpillifolia subsp. serpillifolia D. Myrick 1966-8-9 1511 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  CAS-BOT-BC165978  Chamerion angustifolium Wm. Bridge Cooke 1938-7-22 11329 Siskiyou Sisson Southern Trail Comment
  JEPS43908  Chamerion angustifolium subsp. circumvagum Geo. D. Butler 1908-8-2 158 Siskiyou Bottom's Camp Shackelford Creek 1219 Comment
  CAS-BOT-BC68201  Cheilanthes gracillima John Thomas Howell 1939-8-3 14995 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC19022  Cheilanthes gracillima J. O. Sawyer 1969-7-10 1303 Siskiyou SE facing slope above South Sugar Lake 2165 Comment
  HSC19171  Cheilanthes gracillima J. O. Sawyer 1969-6-10 808 Siskiyou S face near Sugar Lake 1829 Comment
  UC637173  Cheilanthes gracillima Edward Lee 1934-8-14 1108 Siskiyou summit Little Grayback 1868 Comment
  CAS-BOT-BC68242  Cheilanthes gracillima Gilbert Muth 1965-8-6 s.n. Siskiyou Trail to backside of Blk Mt. Comment
  RSA331961  Cheilanthes gracillima W. Wisura, Dave Kelly 1985-7-30 4075 Siskiyou Along forestry road 47N63 near Siskiyou Summit, N of Horse Creek on Hwy 96. Comment
  UC1593361  Cheilanthes gracillima Alan Smith with Chris Richards, and C. Don Macneill 1992-6-5 2538 Siskiyou along Cave Loop Rd above Visitor's Center (Blue Grotto Cave); Lava Beds Nat'l Monument 1524 Comment
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May 30 2013
  JEPS75210  Chenopodium botrys W. B. and V. G. Cooke 1975-9-3 50487 Siskiyou Ash Creek Area Mt. Shasta (at Military Pass Rd.) Comment
  SEINET4175054  Chenopodium vulvaria J. Alex 2004-8-24 1885 Siskiyou Yreka, Wendy Ave., 0.1 miles south of Lawrence Lane 950 Comment
  HSC61509  Chimaphila menziesii Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  HSC67493  Chimaphila menziesii J. P. Smith, Steve Selva 1970-6-15 3933 Siskiyou Between Forks of Salmon and Cecilville. Comment
  HSC27634  Chimaphila umbellata Carl W. Mize 1972-6-22 87 Siskiyou In a draw past cut block #48 1113 Comment
  POM230559  Chimaphila umbellata subsp. occidentalis J. T. Howell 1937-7-26 13559 Siskiyou Caribou Gulch. Comment
  RSA605356  Chimaphila umbellata subsp. occidentalis L. C. Wheeler 1959-7-25 7596 b Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  RSA183672  Chimaphila umbellata subsp. occidentalis Gilbert Muth 1965-8-10 197 Siskiyou Marble Valley and along upper trail, Marble Mts. Comment
  CHSC617  Chrysolepis sempervirens V. Holt 1939-7-1 Siskiyou Mt. Shasta City. 1097 Comment
  HSC8067  Chrysolepis sempervirens Wm. F. Bowman 1968-10-12 Siskiyou Sugar Creek Trail 1585 Comment
  UC1190126  Circaea alpina subsp. pacifica Ira L. Wiggins 1955-7-23 13469 Siskiyou China Creek 1097 Comment
  CAS-BOT-BC285349  Cirsium andersonii L. S. Smith 1913-8-30 536 Siskiyou Mount Eddy Comment
  SBBG65885  Cirsium douglasii var. breweri A. A. Heller 1927-8-1 14437 Siskiyou Strawberry Valley near Mount Shasta, near Deetz, just N of Shasta City 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
  OBI53783  Cirsium occidentale var. candidissimum David J. Keil 1992-7-20 23475 Siskiyou 10.3 mi W of Fort Jones along Scott River rd; above Scott river 900 Comment
  CAS-BOT-BC288770  Cirsium remotifolium John Thomas Howell 1937-7-22 13311 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  HSC77095  Cirsium remotifolium K. T. Stillman 1976-7-30 336 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  RSA184692  Cirsium remotifolium var. odontolepis Gilbert Muth 1966-8-1 485 Siskiyou Marble Valley Horse Pasture, Marble Mountains 1793 Comment
  HSC92686  Cirsium scariosum Jennifer Whipple 1976-7-24 1559 Siskiyou SW of Dobkins Lake along the drainage into the lake 2287 Comment
  CDA1578  Cirsium scariosum var. robustum T. C. Fuller 1977-6-14 20216 Siskiyou Klamath Lake valley; North side of Hwy 161 (Stateline Rd.) 5.2 km. east of Hwy 97, 10.5 km. NE of Dorris. Comment
  CAS-BOT-BC228980  Cistanthe umbellata Alice Eastwood 1921-7-28 10873 Siskiyou Medicine Lake Comment
  CAS-BOT-BC164165  Clarkia concinna Mrs. Dorothy Parker 1961-5-26 874 Siskiyou Dry rocky hillside near Cecilville Comment
  UCD169448  Clarkia lassenensis Lowell Ahart; John Dittes 2005-6-10 12099 Siskiyou About 6 miles (air) east-southeast of Grenada, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 100 yards southeast of the pump house along the Shasta River. 776 Comment
  UC54446  Clarkia lassenensis H. M. Hall and E. B. Babcock June, 1903 4174 Siskiyou Fall River Springs Sierra Nevada Mountains 1066 Comment
  CAS-BOT-BC164974  Clarkia rhomboidea Doris K. Kildale 1930-6-1 9707 Siskiyou Salmon River between Somes Bar and Forks of Salmon 365 Comment
  HSC42940  Clarkia rhomboidea J. O. Sawyer, Ken Stillman 1976-7-1 2775 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  CAS-BOT-BC164980  Clarkia rhomboidea Julie Kierstead Nelson; Rhonda Posey 2007-6-15 2007 -017 Siskiyou North side of Mt. Shasta, south of Hwy. 97, along Forest Service Rd. 42N84; ca. 4 miles N E of town of Weed. NE of railroad trestle 1249 Comment
  JEPS116876  Clarkia rhomboidea David Gowen 2007-7-11 779 Siskiyou Southeast of Lake Shastina and Hwy 97 on forest service road 42N15. Near rocky area on side trail, midway between railroad tracks and pumice mine. Comment
  SEINET11942356  Claytonia lanceolata H. P. Chandler 1901-1 1690 Siskiyou Marble Mountain, North Coast Ranges 2286 Comment
  HSC64295  Claytonia parviflora subsp. parviflora J. P. Smith 1973-5-5 6376 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  RSA469310  Claytonia rubra M. B. Dunkle 1944-7-15 906 Siskiyou Siskiyou Nart l Forest. 1768 Comment
  CAS-BOT-BC443828  Claytonia rubra subsp. rubra J. H. Thomas 1949-6-16 951 Siskiyou 1/4 miles north of Beaver Creek Public Camp, along Beaver Creek; 5 miles north of junction of Beaver Creek and Klamath River; Klamath National Forest. Comment
  CAS-BOT-BC443830  Claytonia rubra subsp. rubra Alice Eastwood; John Thomas Howell 1934-4-20 1745 Siskiyou Near Yreka on Ft. Jones road Comment
  CAS-BOT-BC443826  Claytonia rubra subsp. rubra Geo. D. Butler 1909-3-24 676 Siskiyou Old Mining Dump, Oro Fino Comment
  HSC17712  Claytonia rubra subsp. rubra R. C. Wunner 1965-6-6 70 Siskiyou Lava Beds National Monument, 0.1 mi. on road to Caldwell Ice Cave. 1372 Comment
  HSC22226  Claytonia rubra subsp. rubra J. O. Sawyer 1969-7-1 991 Siskiyou Above Paynes Lake Creek 1951 Comment
  HSC4884  Claytonia sibirica J. O. Sawyer 1968-7-2 377 Siskiyou Upper drainage of Joe Creek on steep N facing slopes. 1677 Comment
  HSC29435  Claytonia sibirica Frederick W. Oettinger 1968-8-14 509 Siskiyou Marble Mtn. Wilderness Area, at Tom Taylor Cabin 2049 Comment
  HSC30284  Claytonia sibirica William J. Ferlatte 1969-6-25 1178 Siskiyou Big Flat, near public camp 1524 Comment
  RSA238297  Claytonia sibirica Frederick W. Oettinger 1968-8-14 509 Siskiyou Meadow at spring at Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  SFV1150  Claytonia sibirica D. Parker 1949-5-26 122 Siskiyou Salmon Mountains. Along the banks of Wildcat Creek. 1220 Comment
  JEPS60556  Clematis ligusticifolia W. L. Jepson July 1894 Siskiyou Sisson Comment
  UC165950  Clematis ligusticifolia Geo. D. Butler 1910-8-3 1810 Siskiyou Yreka Creek Comment
  CHSC2251  Clintonia uniflora V. Holt 1932-6-26 Siskiyou Mt. Eddy. 1219 Comment
  CAS-BOT-BC500961  Clintonia uniflora Lester Rowntree 1934-5-11 s.n. Siskiyou Happy Camp near Oregon-California Line Comment
  RSA78293  Clintonia uniflora Philip A. Munz 1952-7-1 17861 Siskiyou Baldy Mtn road, NW of Happy Camp, Siskiyou Mts. 1220 Comment
  CHSC88115  Collinsia grandiflora Jenny Marr 1993-7-1 125 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS74150  Collinsia linearis J. M. Tucker and L. K. Mann 1963-7-4 3691 Siskiyou ca 4.7 mi sw Etna (beside rd from Etna to Sawyer's Bar) Comment
  RSA237561  Collinsia linearis Frederick W. Oettinger 1969-7-11 978 Siskiyou Due west of northwest end of Hancock Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. 1951 Comment
  JEPS24987  Collinsia parviflora Jean Langenheim 1957-5-19 4343 Siskiyou between Gazelle and Callahan (along roadcut) Comment
  HSC29394  Collinsia rattanii Frederick W. Oettinger 1968-8-16 544 Siskiyou Red Hill near outlet of Hancock Lake 1997 Comment
  HSC628  Collinsia torreyi var. latifolia William J. Ferlatte 1966-7-7 217 Siskiyou N side of Caribou Mtn. 1982 Comment
  UC454129  Collinsia torreyi var. latifolia I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  RSA120633  Collinsia torreyi var. latifolia G. D. Barbe 1955-7-6 131 Siskiyou SE shore of Taylor Lake, Salmon Mtns. 1951 Comment
  UC52561  Collomia grandiflora Geo. B. Grant September, 1902 5159 Siskiyou Sisson Mount Shasta 914 Comment
  RSA237937  Collomia grandiflora Frederick W. Oettinger 1968-8-12 489 Siskiyou between lily pond and Tobacco Lake. The Salmon Mountains; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1890 Comment
  UC164128  Collomia tinctoria Geo. D. Butler 1910-5-30 1429 Siskiyou Humbug Creek Comment
  UCD118258  Collomia tinctoria Herbert L. Mason 1948-7-18 13606 b Siskiyou Grass Lake. Comment
  CAS-BOT-BC230675  Collomia tracyi L. B. Kildale 1930-6-1 9781 Siskiyou Black Bear trail to Sawyers Bar, Salmon RIver Comment
  RSA273385  Conyza canadensis J. P. Smith, J. O. Sawyer 1972-9-14 5806 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  HSC43040  Corallorhiza maculata J. O. Sawyer, K. T. Stillman 1976-7-2 2813 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  JEPS64348  Corallorhiza maculata W. L. Jepson 1940-6-27 20039 Siskiyou Mt. Shasta; e slope 1828 Comment
  UCD77567  Corallorhiza maculata Robert E. Preston 2001-6-23 1549 Siskiyou Klamath National Forest, n slope of Rainbow Mtn. 1828 Comment
  HSC104273  Corallorhiza striata Samantha E. Andres 2016-6-5 19 Siskiyou About 2.5 mi. on the Doe Flat Trail from the parking lot 1229 Comment
  UC164421  Corallorhiza striata Geo. D. Butler 1910-5-5 1292 Siskiyou Humbug Mountain Comment
  CHSC65840  Cordylanthus tenuis subsp. pallescens Maria Ulloa-Cruz 1994-8-2 42 Siskiyou Shasta-Trinity National Forests. Southeast of County Dump site. 1200 Comment
  JEPS85956  Cordylanthus tenuis subsp. pallescens Don Burk 1990-4-1 DB 17 Siskiyou just s Weed Elementary School (s side of Hilltop Dr, less than 0.1 mi e of S. Davis Ave.); Weed NW Quadrangle 1072 Comment
  CHSC105585  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-9 16291 b Siskiyou Shasta-Trinity National Forest, on Stewart Springs Road (Forest Service Road 17) 5.3 miles from the Gazelle Road. Lat. and Long. indicated +/- 30 feet. 1304 Comment
  HSC74909  Cordylanthus tenuis subsp. viscidus J. P. Smith 1978-7-1 9957 Siskiyou Klamath National Forest, Baker Cypress Grove 854 Comment
  UCD123183  Cordylanthus tenuis subsp. viscidus Barbara L. Wilson; Richard E. Brainerd 2010-8-6 16234 Siskiyou at sign at border of Shasta-Trinity National Forest on Highway 89 east of McCloud. 1356 Comment
  JEPS7047  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with G. T. Robbins and C. L. Custer 1954-8-13 4795 Siskiyou on road from Callahan to Carrville (1.2 mi above (and s of) junction with Gazelle road, lower part of grade over Scott Mt.) 1097 Comment
  CAS-BOT-BC212056  Cornus nuttallii Wm. Bridge Cooke 1938-6-17 11138 Siskiyou Sisson Southern Trail, Mount Shasta 1371 Comment
  CAS-BOT-BC212058  Cornus nuttallii Doris K. Kildale 1929-8-24 9064 Siskiyou Trail to Preston Peak between Young's Valley and Rattlesnake Meadow 1524 Comment
  CAS-BOT-BC212070  Cornus nuttallii Edward Lee 1934-8-11 1029 Siskiyou Walker Creek, a tributary of the Klamath River, east end of Seiad Valley 609 Comment
  JEPS50161  Cornus nuttallii Geo. D. Butler 1909-5-30 766 Siskiyou Humbug Mt. Comment
  RSA12595  Cornus nuttallii C. B. Wolf 1934-7-6 5991 Siskiyou 3 mi. from Mt. Shasta City on Wagon Camp Road. SW slope of Mt. Shasta. 1220 Comment
  SBBG5317  Cornus nuttallii J. M. Tucker 1947-5-17 154 Siskiyou ca. 5 mi SE of Callahan on rd to Scott Mtn Comment
  SEINET12136386  Cornus nuttallii M. Ownbey, Brown, D. H. 1941-1 2426 Siskiyou on road between Craggy Mountain & Deadwook Lookout, NW of Yreka Comment
  RSA397707  Cornus stolonifera B. C. Templeton 1960-6-21 8557 Siskiyou 2 miles below the summit of Scott Mt. Comment
  JEPS78178  Corylus californica Gary W. Zamzow 1972-7-20 93 Siskiyou 7 mi e of McCloud (on Highway 89, Fowlers Campground, on e-facing bank of McCloud River); McCloud River, Fowlers Campground, Highway 89 1066 Comment
  HSC29344  Corylus cornuta subsp. californica Frederick W. Oettinger 1968-8-23 615 Siskiyou Marble Mtn. Wilderness Area, Diamond Lake outlet spillway 1951 Comment
  UCD110080  Corylus cornuta subsp. californica AT Leiser 1973-3-22 s.n. Siskiyou Dunsmuir. Comment
  POM106651  Corylus cornuta var. californica Geo. D. Butler 1908-3-2 1076 Siskiyou Forest House Mountain. Comment
  POM270390  Corylus cornuta var. californica Lyman Benson 1929-3-26 1070 Siskiyou Shoulder of Mt. Shasta Pacific Highway. Comment
  SEINET6892683  Corylus cornuta var. californica M. K. Solecki, J. B. Taft 1986-9-13 2160 Siskiyou Marble Mountain Wilderness; along Canyon Creek Trail above Canyon Creek. Comment
  HSC19044  Crepis acuminata J. O. Sawyer 1969-6-12 918 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  JEPS107477  Crepis bakeri Lowell Ahart, John Dittes 2005-6-9 12028 Siskiyou Hill, south of a rock fence, about 100 yards northeast of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  UC91846  Crepis modocensis subsp. modocensis T. S. Brandegee July, 1887 Siskiyou Ager Comment
  POM33149  Crepis monticola Geo. D. Butler 1909-5-30 749 Siskiyou Humbug Mountain. 1220 Comment
  UC922491  Crepis occidentalis Annie M. Alexander and Louise Kellogg 1949-7-22 5850 Siskiyou Paradise Lake Marble Mountains 2072 Comment
  CAS-BOT-BC290841  Crepis occidentalis subsp. pumila H. M. Hall; E. B. Babcock 1903-6-1 4116 Siskiyou Sierra Nevada Mountains. Mount Shasta. Near Sheep Rock 1524 Comment
  CAS-BOT-BC290876  Crepis pleurocarpa John Thomas Howell 1937-7-29 13646 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  CAS-BOT-BC290878  Crepis pleurocarpa Alice Eastwood 1921-7-24 10780 Siskiyou Castle Lake Comment
  CAS-BOT-BC376478  Crepis pleurocarpa Annie M. Alexander; Louise Kellogg 1949-7-29 5890 Siskiyou Top of ridge above Sky High Lake. Sky High Valley, Marble Mountains 1920 Comment
  CAS-BOT-BC376506  Crepis pleurocarpa John Thomas Howell 1937-7-21 13192 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC61804  Crepis pleurocarpa Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  HSC92417  Crepis pleurocarpa Jennifer Whipple 1976-7-24 1553 Siskiyou Mt. Eddy, SW of Dobkins Lake 2256 Comment
  POM10576  Crepis pleurocarpa E. B. Copeland 1903-9-6 3755 Siskiyou Mt. Eddy 1829 Comment
  SD53386  Crepis pleurocarpa Darley F. Howe 1962-8-4 3392 Siskiyou Near summit of Baldy Mountain. 1735 Comment
  UC581187  Crepis pleurocarpa G. L. Stebbins Jr. and J. A. Jenkins 1937-7-19 2446 Siskiyou n-facing slope on ridge between Big Mill and Mule Creek (near road from Callahan to Carrville) 1200 Comment
  CAS-BOT-BC290882  Crepis pleurocarpa Louis C. Wheeler 1934-8-16 3168 Siskiyou Klamath National Forest. 2 mi. E White Mt. 1920 Comment
  POM147907  Crepis pleurocarpa J. B. Feudge 1927-7-24 1803 Siskiyou trail from Mt. Shasta City to Mt. Eddy 1677 Comment
  HSC63065  Crocidium multicaule David Wheeler 1979-4-8 34 Siskiyou N facing slope Comment
  HSC68062  Croton setiger J. P. Smith, Steve Selva 1970-7-16 4401 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  HSC19013  Cryptantha affinis J. O. Sawyer 1969-8-4 1878 Siskiyou S of S Sugar Lake 2104 Comment
  JEPS67672  Cryptantha intermedia T. H. Gilbert 1899-7-1 25 Siskiyou Scott River Valley Comment
  UC78653  Cryptantha rostellata Thos. Howell 1889-5-10 1386 Siskiyou Hornbrook Comment
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May 28 2007
  SDSU20238  Cryptantha subretusa Ronald B. Kelley 2005-9-5 962 Siskiyou On south-southwest facing slope of Mt. Eddy on unofficial peak trail, on upslope side of trail. 2560 Comment
  UC857280  Cryptantha torreyana John Thomas Howell 1937-7-29 13655 Siskiyou between Trinity and Siskiyou County; Scott Mountain Comment
  SEINET14387696  Cryptogramma cascadensis W. Bridge Cook 1941-1 16304 Siskiyou Scattered through lava slopes above Horse Camp, Mt Stasta 2515 Comment
  NY16604  Cupressus bakeri C. B. Wolf 1934-10-9 6170 Siskiyou Siskiyou Mountains, above West Fork of Seiad Creek, 0.75 miles above forks of creek 1158.2 Comment
  NY16609  Cupressus bakeri C. B. Wolf 1934-10-8 6166 Siskiyou Modoc Lava Beds, 1 mile northeast of Timbered Crater on Old Stage Road from Dana to Little Hot Springs Valley 1219.2 Comment
  POM264956  Cupressus bakeri O. V. Matthews 1939-7-3 19 Siskiyou Sullivan Mine Grove; Cook and Green region 1067 Comment
  RSA22762  Cupressus bakeri O. V. Matthews 1939-7-22 41 Siskiyou North side of Lava Road . About 3.3 miles from junction with county road for Day 1220 Comment
  UC650674  Cupressus bakeri Oliver V. Matthews 1939-7-18 36 Siskiyou ne Goose Nest Grove Goose Nest Region 1524 Comment
  UC813438  Cupressus bakeri Louis C. Wheeler 1935-4-14 3417 Siskiyou West Fork Seiad Creek; Siskiyou Mts., Mt. Diablo Mer., Seiad Creek 1158 Comment
  SEINET10531424  Cupressus bakeri Carl B. Wolf, E. R. Johnson 1934-10-8 Wolf 2127 Siskiyou Modoc Lava beds, 1 mi N.E. of timbered crater on old stage Rd. from Dana to Little Hot Springs Valley. Arid transition:- Arctostaphlos Patula, Yellow Pines. Sun. Lava Rock. 1220 Comment
  CAS-BOT-BC213751  Cupressus bakeri subsp. matthewsii Carl Brandt Wolf 1934-10-9 2130 Siskiyou Siskiyou Mts., above W. fork of Seiad Creek, 3/4 mi. above forks of creek 1158 Comment
  JEPS47092  Cuscuta cephalanthi George B. Grant 1902-9-4 5217 Siskiyou Sisson 914 Comment
  RSA666423  Cuscuta occidentalis Barbara Ertter 1987-7-26 7326 Siskiyou 2.2 mi N of Scott Mt. summit on Hwy 3, at road junction.Half way down Old Priest Grade between Big Oak Flat and junction of Highways 120 and 49, ca. 35 airmiles E of Modesto. 1372 Comment
  HSC61606  Cycladenia humilis Ruby Van Deventer 1970-6-6 Siskiyou Lookout Mtn. Comment
  UC1170101  Cycladenia humilis var. humilis unknown 1956-7-16 30301 Siskiyou along old logging rd. above Hotlum (n. side Mt. Shasta); Mt. Shasta Comment
  UCD119151  Cynoglossum officinale T. C. Fuller 1967-6-27 16034 Siskiyou W. side of rd. to McCloud Reservoir, 0.3 mi. s. of McCloud. Comment
  UC1755212  Cypripedium californicum Dean William Taylor 1972-7-3 1605 Siskiyou At Cook and Green Pass, in White Fir Forest 1371 Comment
  RSA383004  Cypripedium fasciculatum Robert Kessler 1920-1 s.n. Siskiyou Siskiyou Comment
  HSC19005  Cystopteris fragilis J. O. Sawyer 1969-7-1 975 Siskiyou SE slope above Paynes Lake Creek 1921 Comment
  RSA47815  Cystopteris fragilis Roxana S. Ferris, Laura Lorraine 1948-6-12 11765 Siskiyou About 6 miles from Etna on forks of Salmon Road. 1707 Comment
  CAS-BOT-BC192259  Danthonia californica Ira L. Wiggins 1955-7-27 13551 Siskiyou Caribou Lake, Salmon River-Trinity Alps Primitive Area 2042 Comment
  UCD60991  Danthonia californica R. Tofsrud 1948-8-3 Siskiyou Poker Flat, near Del Norte Co. border. Comment
  POM365004  Danthonia californica var. americana M. B. Dunkle 1945-7-24 9263 Siskiyou Klamath National Forest, Marble Mountains; Dad's Pocket Comment
  SEINET4566572  Danthonia californica var. americana G. Butler 1910-7-8 1660 Siskiyou Shackleford Creek 1219 Comment
  HSC19078  Danthonia intermedia subsp. intermedia J. O. Sawyer 1969-8-2 1703 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  HSC30517  Danthonia intermedia subsp. intermedia Frederick W. Oettinger 1968-8-4 762 Siskiyou Salmon Mountains: Tobacco Lake, upper meadow. 1890 Comment
  HSC75125  Danthonia unispicata J. P. Smith, Thomas W. Nelson 1970-6-16 10146 Siskiyou Klamath National Forest: along Forest Rd. 40N03, 0.3 mi. from junction with Hwy. 3. 1463 Comment
  CAS-BOT-BC76234  Darlingtonia californica L. E. Smith 1913-7-4 81908 Siskiyou Castle Lake. Comment
  HSC66240  Darlingtonia californica Maralyn A. Renner 1980-8-6 2294 Siskiyou Cracker Meadow 1555 Comment
  HSC67646  Darlingtonia californica J. P. Smith, Steve Selva 1970-7-27 4522 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  RSA422668  Darlingtonia californica Christopher Davidson 1975-6-5 2676 Siskiyou 3.3 miles from gate on special service road branching to SE of road from Gazelle to Callahan 9.3 miles W of Gazelle; Klamath Nat'l Forest. 1623 Comment
  UC1094389  Darlingtonia californica Rimo C. Bacigalupi with S. Galen Smith 1957-6-26 5956 Siskiyou small, sloping bog at w margin Gumboot Lake (ca 6 mi due s of Mt. Eddy); head of the South Fork of the Sacramento River 1859 Comment
  RSA698848  Darlingtonia californica Leo Miller 1938-06 s.n. Siskiyou Siskiyou Mountains [Siskiyou or Del Norte counties]. 854 Comment
  CHSC71318  Delphinium andersonii Vernon H. Oswald; Lowell Ahart 1998-6-11 9227 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
  JEPS43421  Delphinium andersonii Geo. D. Butler 1909-4-14 642 Siskiyou near Yreka Comment
  UC9128  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1589 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  RSA105391  Delphinium decorum subsp. tracyi G. D. Barbe 1955-7-6 134 Siskiyou Along northeast shore of Taylor Lake, Salmon Mtns. 1951 Comment
  CAS-BOT-BC10145  Delphinium menziesii L. R. Short 1933-5-22 54 Siskiyou Klamath National Forest 609 Comment
  CAS-BOT-BC9892  Delphinium nudicaule E. K. Balls 1950-5-16 14711 Siskiyou E. slope, Caldwell Butte, Lava Beds National Monument 1676 Comment
  HSC77045  Delphinium nuttallianum K. T. Stillman 1976-6-25 28 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  UCD96160  Delphinium nuttallianum Sandy Holloway 1963-5-19 58 Siskiyou 1 mile east of Humbug Creek. 853 Comment
  UCD61220  Deschampsia cespitosa Arthur Menzies 1962-7-21 Siskiyou Morgan Meadows, base of Mt. Eddy. 1706 Comment
  CAS-BOT-BC192464  Deschampsia cespitosa subsp. cespitosa L. P. Janeway 1983-8-16 545 Siskiyou Siskiyou Mountains; at Poker Flat 1524 Comment
  UCD62395  Deschampsia danthonioides A. A. Heller 1915-7-18 12120 Siskiyou Metcalf's ranch, base of Mt. Eddy. Comment
  CHSC61566  Deschampsia elongata L. P. Janeway 1983-8-28 627 Siskiyou Siskiyou Mountains; at Poker Flat, a meadow. Northwest edge of the meadow, on the upper side of the road. 1524 Comment
  HSC68534  Deschampsia elongata Maralyn A. Renner 1980-6-25 1083 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  POM161565  Deschampsia elongata Geo D. Butler 1909-6-20 840 Siskiyou Damp land near Yreka Comment
  SEINET7063125  Descurainia incisa subsp. filipes A. G. Vestal 1963-6-1 s.n. Siskiyou North of Big Springs [Mayten] on the Mayten Road. UTM Zone 10, 549674mE, 4605677mN. (WGS84/NAD83). 224 Comment
  CAS-BOT-BC43086  Descurainia longipedicellata Roxana S. Ferris; Laura Lorraine 1948-6-12 11854 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1417 Comment
  CAS-BOT-BC43518  Descurainia sophia A. A. Heller 1916-6-22 12425 Siskiyou Near Sisson. 1074 Comment
  CHSC640  Dicentra pauciflora V. Holt 1932-7-10 Siskiyou Mt. Eddy. Comment
  JEPS86114  Dicentra pauciflora Wayne Roderick 1966-7-23 Siskiyou Castle Lake; and higher up trail to Little Castle Lake 1676 Comment
  UC1185288  Dicentra pauciflora H. E. Brown 1897-6-15 418 Siskiyou n side Mount Shasta 1524 Comment
  HSC91287  Dicentra uniflora Jennifer Whipple 1976-6-17 1014 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  HSC44866  Dichelostemma capitatum subsp. capitatum J. P. Smith 1973-5-5 6455 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  RSA237875  Dichelostemma ida-maia Frederick W. Oettinger 1969-7-31 1119 Siskiyou Just above Willow Springs along the trail between Abott s Upper Cabin and English Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1692 Comment
  CAS-BOT-BC500993  Dichelostemma multiflorum L. B. Kildale 1930-6-1 9712 Siskiyou Salmon River at Crapp Creek Comment
  CAS-BOT-BC500997  Dichelostemma multiflorum Roxana S. Ferris; Laura Lorraine 1948-6-12 11784 Siskiyou Outskirts of Etna Comment
  OBI55452  Dieteria canescens var. shastensis David J. Keil 1992-7-20 23509 Siskiyou Klamath Natl forest, SW of Fort Jones. Along forest rd 46N64, 8.2mi W of Scott river Rd Comment
  CHSC66545  Diplacus nanus Vernon H. Oswald 1996-7-12 8005 Siskiyou Sand Flat on Mt. Shasta 1.5 mi N of Everitt Memorial Hwy. (A10). 2164 Comment
  SDSU5840  Dipsacus sativus D. F. Howe 1962-8-5 3260 Siskiyou 56.8 miles east of Happy Camp on #96. 610 Comment
  CDA31684  Distichlis spicata var. stricta J. Schieber 1967-8-23 Siskiyou Westside Grocery, Stateline Rd., Tukelake area. 0 Comment
  RSA238734  Dodecatheon alpinum Frederick W. Oettinger 1969-7-15 1029 Siskiyou On wet, cold, meadow at 'Bear Meadow' spring in saturated humus-located mid-way as the crow flies between Tom Taylor cabin and English Peak summit., The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  UC585128  Dodecatheon hendersonii E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2001 Siskiyou about 1 1/2 mi w Mt. Shasta City (e and ne slope of spur of Rainbow Ridge above Sulloway Creek); above Sulloway Creek, w of Mt. Shasta City 1188 Comment
  HSC81528  Dodecatheon jeffreyi Thomas W. Nelson, Jane P. Nelson 1980-7-20 6181 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  CHSC118450  Dodecatheon jeffreyi Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -028 Siskiyou Lower Parks Creek watershed, E Klamath Range; slope above Forest Service Road 42N19, 4 miles northwest of Stewart Springs. UTM NAD 83 Zone 10, 539166m E, 4587170m N. 1529 Comment
  JEPS29151  Downingia bacigalupii John H. Weiler and A. P. Nelson 1960-6-24 60205 Siskiyou 2.7 mi sw California-Oregon border (at the side of Dorris-Beswick road) Comment
  NY546981  Downingia bacigalupii J. H. Weiler 1960-6-24 60205 Siskiyou At the side of Dorris-Beswick road, 2.7 miles southwest of the California-Oregon border Comment
  CAS-BOT-BC41762  Draba howellii Gilbert Muth 1965-8-4 s.n. Siskiyou Marble Mountains. Comment
  CAS-BOT-BC41308  Draba pterosperma C. L. Hitchcock; J. S. Martin 1939-7-9 5302 Siskiyou North side of Black Mountain near Marble Mountain (King's Castle). 2072 Comment
  CAS-BOT-BC41310  Draba pterosperma C. L. Hitchcock; J. S. Martin 1939-7-9 5317 Siskiyou King's Castle. 1828 Comment
  HSC76967  Draba pterosperma K. T. Stillman 1976-7-30 318 Siskiyou Marble Mtn. Wilderness Area, ridge top just N of Black Mtn. 2104 Comment
  UC722619  Draba pterosperma C. L. Hitchcock, J. S. Martin 1939-7-9 5302 Siskiyou n. side of Black Mt. near Marble Mt. (King's Castle); Black Mt. 2072 Comment
  CAS-BOT-BC41415  Draba verna A. A. Beetle; G. L. Stebbins, Jr. 1942-5-31 3419 Siskiyou Canyon north of Willow Creek, 5 miles west of Gazelle. Comment
  JEPS125885  Drosera rotundifolia Dean W. Taylor with Glenn L. Clifton 1996-7-27 15853 Siskiyou Shasta-Trinity National Forest; Lower Cliff Lake, The Eddys, about 15 air miles SW of Weed. Comment
  CAS-BOT-BC159682  Drymocallis glandulosa A. A. Heller 1915-8-26 12217 Siskiyou Near the source of Wagon Creek, Mt. Eddy 2621 Comment
  POM34596  Drymocallis glandulosa var. glandulosa Geo. D. Butler 1910-5-30 1431 Siskiyou Humbug Creek. Comment
  HSC90600  Drymocallis pseudorupestris var. pseudorupestris Jennifer Whipple 1976-6-23 1106 Siskiyou Mt. Eddy, E and S facing slopes draining into the N Fork of the Sacramento River 2256 Comment
  CAS-BOT-BC158413  Drymocallis pseudorupestris var. saxicola Wm. Bridge Cooke 1938-8-23 11570 Siskiyou Shastina, Mt. Shasta 2743 Comment
  CAS-BOT-BC158417  Drymocallis rhomboidea G. P. Rixford s.n. Siskiyou South side of [Shaft-rock] Shaft Rock Mt., Hilt Comment
  CAS-BOT-BC197268  Echinochloa muricata var. microstachya Carl B. Wolf 1927-8-26 994 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CHSC111065  Eleocharis decumbens Barbara L. Wilson 2011-8-23 16886 Siskiyou Toad Lake 2117 Comment
  JEPS121386  Eleocharis decumbens Barbara L. Wilson 2011-8-23 16873 Siskiyou Fawn Creek meadows Comment
  RSA238950  Eleocharis decumbens Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1181 Siskiyou Just north of Tobacco Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  HSC45949  Eleocharis parishii J. P. Smith, Steve Selva 1970-6-15 3917 Siskiyou 10 mi. NW of Forks of Salmon Comment
  CAS-BOT-BC112694  Eleocharis parishii Louis C. Wheeler 1934-7-17 2913 Siskiyou Cottonwood Creek. 1036 Comment
  RSA0037180  Eleocharis rostellata Lowell A. Ahart, John Dittes 2010-7-30 16946 Siskiyou About 5 yards south of the Shasta River, about 40 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
  UCD49862  Eleocharis suksdorfiana Robert E. Preston 2001-7-21 1748 Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 2066 Comment
  CAS-BOT-BC227923  Elymus elymoides L. E. Smith 1913-6-25 393 Siskiyou Montague Comment
  CAS-BOT-BC227927  Elymus elymoides Alice Eastwood 1921-7-28 10934 Siskiyou Medicine Lake Comment
  RSA119382  Elymus elymoides S. S. Tillett 1956-7-11 699 Siskiyou just north of campground, Scott Mtn., divide; Siskiyou-Trinity co. line, ca. 8 mi. se. of Callahan 1631 Comment
  UC167223  Elymus elymoides subsp. elymoides W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sisson Mount Shasta Comment
  SD112901  Elymus elymoides var. brevifolius D. F. Howe 1979-6-26 5117 Siskiyou Military Pass Road, 3 miles southeast of #97 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
  HSC26989  Elymus elymoides var. elymoides J. P. Smith, J. O. Sawyer 1971-9-16 4768 Siskiyou Ridge S of Bingham Lake. 2134 Comment
  UC197107  Elymus glaucus Geo. D. Butler 1909-6-19 836 Siskiyou along creek near Yreka Comment
  CAS-BOT-BC206596  Elymus glaucus subsp. glaucus Louis C. Wheeler 1934-8-14 3143 Siskiyou E end White Mt., Klamath National Forest 1767 Comment
  CAS-BOT-BC206598  Elymus glaucus subsp. glaucus Wm. Bridge Cooke 1938-8-19 11527 Siskiyou Lower Bear Spring, Mount Shasta 1524 Comment
  HSC68563  Elymus multisetus Maralyn A. Renner 1980-6-8 827 Siskiyou Slopes N of Moffett Creek 945 Comment
  POM228883  Elymus trachycaulus subsp. trachycaulus L. C. Wheeler 1935-6-30 3627 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  JEPS89972  Epilobium anagallidifolium Dean W. Taylor 1975-8-14 5453 Siskiyou between Shasta Ski area and Green Butte (Mt. Shasta); Mt. Shasta 2590 Comment
  UC642572  Epilobium anagallidifolium W. Bridge Cooke 1939-7-26 13747 Siskiyou west boreal spring above Panther Creek Meadows; Mount Shasta Comment
  CDA38058  Epilobium brachycarpum William J. Ferlatte 1985-8-29 s.n. Siskiyou Old Highway 99, 4.4 mile north of Stewart Springs Road, Gazelle. 0 Comment
  HSC59015  Epilobium ciliatum subsp. ciliatum Marvin Butler 1971-7-12 109 Siskiyou Near Copper Creek, close to the town of Cave Junction 1433 Comment
  HSC99267  Epilobium ciliatum subsp. ciliatum J. O. Sawyer 1969-6-12 915 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC49652  Epilobium ciliatum subsp. ciliatum J. P. Smith, Steve Selva 1970-7-17 4443 Siskiyou 915 Comment
  POM215737  Epilobium ciliatum subsp. ciliatum Louis C. Wheeler 1935-7-3 3650 Siskiyou 2 mi nw of Montague (Shasta River); Shasta River. 761 Comment
  POM256465  Epilobium ciliatum subsp. ciliatum Edward Lee 1934-8-13 1068 Siskiyou Happy Camp to Waldo (Oregon) road, watershed of West Branch of Indian Creek, Klamath National Forest. 1372 Comment
  POM171578  Epilobium ciliatum subsp. glandulosum Doris K. Kildale 1929-8-24 9047 Siskiyou Rattlesnake Meadow, Preston Peak 1677 Comment
  POM251083  Epilobium ciliatum subsp. glandulosum W. Bridge Cooke 1938-7-15 11192 Siskiyou Bear Springs, Mt. Shasta 1524 Comment
  HSC64496  Epilobium densiflorum J. P. Smith, Steve Selva 1970-7-17 4414 Siskiyou Along Klamath River. Comment
  UC164046  Epilobium densiflorum Geo. D. Butler 1910-6-29 1614 Siskiyou Yreka Creek Comment
  POM258978  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1940-8-8 15417 Siskiyou Mt. Shasta: along Squaw Valley Creek below McCloud water supply intake 1372 Comment
  POM251082  Epilobium hallianum W. Bridge Cooke 1938-7-15 11208 Siskiyou Wagon Camp spring, Mt. Shasta. 1738 Comment
  RSA211359  Epilobium hallianum William J. Ferlatte 1966-6-22 95 Siskiyou Along the South Fork of the Salmon River between the campgrond and Carter s; Trinity Alps. 1524 Comment
  HSC19487  Epilobium hornemannii subsp. hornemannii J. O. Sawyer 1969-8-5 1951 Siskiyou Above the S Fork of Sugar Creek 1814 Comment
  CAS-BOT-BC171824  Epilobium luteum Canfield; Saxton 1922-8-21 69 Siskiyou Klamath Forest 1554 Comment
  SBBG25890  Epilobium minutum D. Myrick 1966-8-9 1506 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  JEPS84191  Epilobium obcordatum L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6405 Siskiyou cirque at head of canyon Hell's Canyon (ca 5 mi n of town of Seiad Valley) 1750 Comment
  CHSC63407  Epilobium siskiyouense Vernon H. Oswald; Lowell Ahart 1994-7-11 6405 Siskiyou Gumboot Lake Rd. (40N37) just S of Forest Rd. 26 (to Mt. Shasta), W of Dunsmuir. Roadside bank. 1777 Comment
  POM230321  Epilobium siskiyouense J. T. Howell 1937-7-29 s.n. Siskiyou Scott Mountain between Trinity and Siskiyou counties. Comment
  RSA211354  Epilobium siskiyouense William J. Ferlatte 1966-8-4 303 Siskiyou Dorleska summit. 2134 Comment
  CAS-BOT-BC204507  Eragrostis cilianensis Louis C. Wheeler 1934-10-24 3346 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  JEPS52498  Eremocarpus setiger Geo. D. Butler 1908-8-15 69 Siskiyou near Yreka; Butler Ranch Comment
  UC375460  Eremocarpus setiger Geo. D. Butler 1908-8-15 69 Siskiyou near Yreka Comment
  RSA0045089  Eremogone congesta R. F. Thorne 1969-8-2 63335 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Trail to upper English Lake along Salmon River. 1159 Comment
  CAS-BOT-BC174221  Eremogone congesta var. congesta Thomas W. Nelson; Jane P. Nelson 1980-7-17 6084 Siskiyou Along Forest Service road 17 1 mile north of summit at county line 2072 Comment
  UCD98105  Eremogone congesta var. suffrutescens G. L. Clifton 1975-7-28 5322 Siskiyou near Cook and Green Pass. Near Seiad Valley. 1645 Comment
  UC1538953  Eriastrum signatum Ann Hale 1987-7-19 Siskiyou near Lake Shastina; Lake Shastina Quad., south end of Shasta Valley 883 Comment
  CAS-BOT-BC58394  Ericameria bloomeri R. C. Wenk 2008-8-31 989 Siskiyou South Fork of Salmon River, Yellow Rose Mine above Big Flat Meadow. 1981 Comment
  CHSC30758  Ericameria bloomeri M. S. Taylor; J. Prouty, E. Heinitz 1980-8-18 3257 A Siskiyou Ca. 50 ft e of Hwy 15, ca. 3 mi n of its jct with Hwy 89, ca. 17 mi e of McCloud. Comment
  HSC5737  Ericameria bloomeri D. M. Thomson 1965-8-14 191 Siskiyou California Lava Beds National Monument; on Tichner Rd. at Tichner Cave Comment
  SEINET5727124 Image available Ericameria bloomeri Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7707 Siskiyou Mt. Shasta City. Collected along Road 89, E of Mt. Shasta City.; Mt. Shasta City 1338 Comment
  UC618705  Ericameria bloomeri unknown 1938-9-17 11687 Siskiyou on the slopes around Horse Camp; Mount Shasta 2438 Comment
  CAS-BOT-BC287494  Ericameria greenei Louis C. Wheeler 1934-9-2 3238 Siskiyou Klamath Forest 1828 Comment
  CAS-BOT-BC294307  Ericameria nauseosa var. speciosa Alice Eastwood 1917-9-2 6661 Siskiyou Shasta Springs Comment
  LA203186  Ericameria nauseosa var. speciosa Wm. Bridge Cooke; 1939-8-4 13802 Siskiyou Mount Shasta, along the Sisson Southern Trail 1371 Comment
  UC598532  Ericameria nauseosa var. speciosa C. Hart Merriam 1898-8-20 183 Siskiyou Mt. Shasta Comment
  JEPS84325  Erigeron aliceae L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6308 Siskiyou from Takilma to Happy Camp Indian Creek Road (just s of state line) Comment
  UCD131603  Erigeron aliceae J. M. Tucker 1974-7-28 4323 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  CDA4411  Erigeron aliceae T. C. Fuller 1974-9-24 20024 Siskiyou Siskiyou Mountains; Reeves Ranch Spring 0 Comment
  POM253603  Erigeron aliceae C. L. Hitchcock, J. S. Martin 1939-7-6 5202 Siskiyou Siskiyou Mts., 2 miles within California boundary on Takilma-Happy Camp Road 1555 Comment
  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
  HSC58865  Erigeron cervinus Marvin Butler 1971-7-13 120 Siskiyou Near Copper Creek, close to town of Cave Junction 1464 Comment
  JEPS94250  Erigeron chrysopsidis var. austiniae Vernon H. Oswald and Lowell Ahart 1998-6-11 9214 Siskiyou 1.5 mi s of the Rail Road crossing s of Mount Hebron (Klamath National Forest boundary on Old State Highway); Klamath National Forest boundary on Old State Highway 1295 Comment
  CAS-BOT-BC296802  Erigeron divergens A. A. Heller 1938-7-12 15261 a Siskiyou Near the eastern base of Deer Mountain on U.S. Highway #97 Comment
  CAS-BOT-BC300474  Erigeron filifolius A. A. Heller 1938-7-12 15255 Siskiyou Near the western base of Deer Mountain 16 miles northeast of Weed on Highway #97 Comment
  POM357580  Erigeron filifolius J. William Thompson 1936-7-8 13157 Siskiyou Lava slopes of Lava Beds Nat'l Monument. Comment
  HSC19478  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-3 1781 Siskiyou Near Little Duck Lake 2073 Comment
  HSC29236  Erigeron glacialis var. glacialis Frederick W. Oettinger 1968-8-23 609 Siskiyou Marble Mtn. Wilderness Area, flats between the rocky ridges on Shasta Ridge, due SE of Diamond Lake 2043 Comment
  UC1619969  Erigeron inornatus Barbara Ertter 1990-7-14 9328 Siskiyou ca. 4 airmiles w. Mt. Shasta City (Wagon Creek on e. side of Mt. Eddy, ridge s. and above creek); Mt. Eddy, Wagon Creek 1950 Comment
  HSC100277  Erigeron inornatus var. inornatus J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13075 Siskiyou Klamath National Forest, along road to botanical area off Forest Service Road 40N24 to Crater Lake. 1860 Comment
  UC455841  Erigeron inornatus var. inornatus I. J. Condit 1911-7-3 Siskiyou along R.R. Shasta Retreat (Shasta Retreat) Comment
  UC895896  Erigeron inornatus var. inornatus Alice Eastwood 1912-9-4 2098 Siskiyou Sisson Comment
  UC917219  Erigeron inornatus var. inornatus R. Tofsrud and J. M. Tucker 1948-8-2 1755 Siskiyou outskirts of McCloud Comment
  CAS-BOT-BC295457  Erigeron klamathensis Edward Lee 1934-8-14 1109 Siskiyou Little Grayback, Siskiyou-Del Norte County Line 1859 Comment
  CAS-BOT-BC295364  Erigeron petrophilus R. C. Wenk 2005-7-15 215 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail. Top of pass, going N along ridge towards Preacher's Peak 2133 Comment
  JEPS83868  Erigeron petrophilus var. petrophilus Wayne Roderick 1976-7-1 Siskiyou vicinity Cook and Green Pass (along trail to Copper Butte); Siskiyou Mts. 1767 Comment
  CHSC67468  Erigeron petrophilus var. viscidulus James D. Jokerst 1992-7-30 3432 Siskiyou Camp above Tamarack Flat, NW of Mt. Eddy. Comment
  POM35918  Erigeron petrophilus var. viscidulus Geo. D. Butler 1910-7-9 1786 Siskiyou Shackleford Creek 1372 Comment
  HSC29865  Erigeron philadelphicus D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-23 19538 Siskiyou Along Hwy. 96 about 8 mi. E of junction with Hwy. 5 Comment
  SEINET10616375  Erigeron philadelphicus David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-3 Dunn 20641 Siskiyou Vicinity of the Campground on the Salmon River, 8.3 mi W of Cecilville. Comment
  CAS-BOT-BC300114  Erigeron pumilus var. intermedius L. E. Smith 1913-5-18 268 Siskiyou Gazelle Comment
  CAS-BOT-BC300312  Erigeron tener Alice Eastwood 1912-8-30 2011 Siskiyou Mount Eddy Comment
  SBBG115567  Eriodictyon lobbii K. F. Mawdsley 1996-7-9 5 Siskiyou Eaton-Duck Lakes trailhead, Russian Wilderness 1524 Comment
  HSC30408  Eriogonum compositum var. compositum Frederick W. Oettinger 1968-9-6 748 Siskiyou Marble Mtn. Wilderness area, ridge trail E of Tom's Lake 2104 Comment
  RSA60782  Eriogonum congdonii Dorothy Parker 1948-8-19 s.n. Siskiyou Near Chinquapin, on Scott Mountain 1524 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
  SEINET6417366  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
  CAS-BOT-BC516180  Eriogonum douglasii var. meridionale Dana York 2011-9-8 3083 Siskiyou Marble Mountain Wilderness: Klamath National Forest, along summit of Marble Mountain, ca. 2.1 km N of Black Marble Mountain 2120 Comment
  HSC163  Eriogonum elatum var. elatum William J. Ferlatte 1966-8-2 241 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  CAS-BOT-BC259366  Eriogonum lobbii Doris K. Kildale 1928-8-20 6618 Siskiyou Hancock Lookout, on trail to Marble Mt. 13 Comment
  RSA46819  Eriogonum luteolum var. luteolum Doris K. Kildale 1925-9-6 1281 Siskiyou Somes Bar. Comment
  LA206883  Eriogonum marifolium W. B. C. after Stokes; 1939-8-8 13838 Siskiyou Mount Shasta, around Horse Camp 2438 Comment
  SD104875  Eriogonum marifolium Darley Howe 1979-6-25 Siskiyou 3 mi. NW of forks of Salmon River on Somes Bar Rd Comment
  UC849521  Eriogonum marifolium John Thomas Howell 1937-7-25 13460 Siskiyou Caribou Basin Salmon-Trinity Alps, Caribou Basin 1981 Comment
  CAS-BOT-BC263181  Eriogonum marifolium var. cupulatum A. A. Heller 1914-8-28 11741 Siskiyou East side of Mt. Eddy 2194 Comment
  HSC67822  Eriogonum marifolium var. marifolium J. O. Sawyer, J. Cole 1980-7-20 3771 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  CDA22622  Eriogonum microthecum F. D. Horn 1977-10-5 Siskiyou Shasta Vista Estates, Grenada. 0 Comment
  RSA393331  Eriogonum nudum var. nudum L. S. Rose 1937-6-26 37601 Siskiyou 3 miles east of Mt. Shasta City. 1372 Comment
  HSC42990  Eriogonum nudum var. pubiflorum J. P. Smith, Steve Selva 1970-8-8 4569 Siskiyou Lava Beds National Monument Comment
  SD133754  Eriogonum nudum var. pubiflorum L. R. Heckard, I. T. Chuang 1968-7-2 1969 Siskiyou Along U.S. Highway 97, 6 miles north of Weed 1219 Comment
  UC398665  Eriogonum nudum var. pubiflorum A. A. Heller 1927-8-2 14443 Siskiyou 3 mi s Yreka Comment
  CAS-BOT-BC272486  Eriogonum nudum var. pubiflorum L. R. Abrams 1926-7-4 11235 Siskiyou 1 mile west of Shasta City on road to Abrams Lake Comment
  CDA22638  Eriogonum nudum var. pubiflorum J. R. Grisham 1958-6-13 Siskiyou Quartz Valley. 0 Comment
  HSC17317  Eriogonum nudum var. pubiflorum R. C. Wunner 1965-6-15 201 Siskiyou Lava Beds N.M., E side Caldwell Butte 1463 Comment
  UC618620  Eriogonum pyrolifolium W. Bridge Cooke 1938-8-18 11495 Siskiyou Horse Camp Slopes Mount Shasta, Horse Camp Slopes Comment
  RSA120632  Eriogonum spergulinum var. reddingianum G. D. Barbe 1955-7-17 207 Siskiyou 1 mile. S of Toomes Camp on the country road. West slope. 1890 Comment
  UC70451  Eriogonum spergulinum var. reddingianum Milo S. Baker 1899-7-31 Siskiyou Ash Creek above Warren and Anderson's Mill; Ash Creek Comment
  CAS-BOT-BC262729  Eriogonum sphaerocephalum var. halimioides L. E. Smith 1914-4-20 633 Siskiyou Yreka Comment
  CHSC118625  Eriogonum sphaerocephalum var. halimioides Richard R. Halse 2016-5-29 9723 Siskiyou Along Hilt Road east of Hilt. 902 Comment
  SEINET10623960 Image available Eriogonum strictum subsp. proliferum Edward L. Greene 1876-7-7 Greene 918 Siskiyou Collected near Yreka. Siskiyou County, California. Comment
  CAS-BOT-BC263385  Eriogonum strictum var. proliferum Arthur Menzies 1962-7-21 s.n. Siskiyou Mt. Eddy 2529 Comment
  HSC62448  Eriogonum umbellatum Ruby Van Deventer 1938-7-31 Siskiyou Twin Valley Comment
  JEPS102933  Eriogonum umbellatum Thomas W. Nelson and Jane P. Nelson 1980-7-20 6154 Siskiyou Along FS road 40N08, Carmen Lake Rd, 6 mi from junction with State Route 3; China Mountain 1645 Comment
  UCSB25088  Eriogonum umbellatum Keefe, Joseph 1967-7-11 Siskiyou Little Castle Lake, southeast of Castle Lake, 10 miles southwest of city of Mt. Shasta 1981 Comment
  CAS-BOT-BC267996  Eriogonum umbellatum var. argus Edward Lee 1934-8-14 1103 Siskiyou Little Grayback, Siskiyou-Del Norte County line 1868 Comment
  CAS-BOT-BC267998  Eriogonum umbellatum var. argus Doris K. Kildale 1928-7-2 5359 Siskiyou Salmon Summit, via Horn Creek trail 1981 Comment
  HSC43411  Eriogonum umbellatum var. argus K. T. Stillman 1976-7-17 266 Siskiyou Marble Mtn. Wilderness Area, ridge above Elk Valley on W side 1951 Comment
  SDSU7196  Eriogonum umbellatum var. argus D. F. Howe 1965-8-8 4123 Siskiyou South side of Little Grayback, Klamath National Forest. 1463 Comment
  UC163831  Eriogonum umbellatum var. argus Geo. D. Butler 1908-8-9 214 Siskiyou summit s Marble Valley Comment
  CAS-BOT-BC105078  Eriogonum umbellatum var. dumosum R. C. Wenk 2008-7-24 931 Siskiyou Kangaroo Lake, S of the Gazelle-Callahan Rd. Top of ridge S of the lake 1981 Comment
  HSC39066  Eriogonum umbellatum var. dumosum A. M. Montalvo, J. D. Ackerman 1975-7-18 584 Siskiyou S Fork Sacramento River, W of Box Canyon Reservoir on USFS Rd. 40N30 Comment
  SEINET10919210 Image available Eriogonum umbellatum var. lautum James L. Reveal 2001-7-19 Reveal 8348 Siskiyou Scott Valley, along South Kidder Creek Road 0.5 miles west-southwest of California Highway 3, about 6.1 air miles southwest of Fort Jones and 5.7 air miles north of Etna, on gravelly soil in open grasslands. T.43N, R9W, sec. 30 NE1/4 of the NE1/4. 869 Comment
  HSC17354  Eriogonum umbellatum var. modocense R. C. Wunner 1965-6-15 187 Siskiyou Lava Beds National Monument, in crater of Caldwell Butte on the NW side 1509 Comment
  UC536686  Eriogonum umbellatum var. nevadense D. H. Johnson and F. G. Palmer 1935-5-16 Siskiyou caves 11 mi ne Weed 1097 Comment
  HSC60822  Eriogonum umbellatum var. polyanthum Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  HSC89399  Eriogonum umbellatum var. polyanthum M. S. Taylor 1980-8-19 3267 Siskiyou Paint Pot Crater 1921 Comment
  UC971920  Eriogonum vimineum Herbert L. Mason 1950-7-15 14040 Siskiyou stream wash, Scott Creek Scott Valley, Scott Creek Comment
  HSC91336  Eriophorum crinigerum Jennifer Whipple 1977-7-21 2018 Siskiyou Near Durney Lake 2073 Comment
  RSA238942  Eriophorum crinigerum Frederick W. Oettinger 1968-9-7 767 Siskiyou Just N of Tobacco Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  SEINET8850152 Image available Eriophorum gracile H. E. Brown 1897-7-15 628 Siskiyou South side of Mt. Shasta 1524 Comment
  CHSC86658  Eriophyllum lanatum Jenny Marr 1993-7-1 41 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC301107  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-20 12479 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  CAS-BOT-BC301140  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-20 12479 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  JEPS69766  Eriophyllum lanatum var. achilleoides W. B. and V. G. Cooke 1972-6-30 45420 Siskiyou Military Pass Road Mt. Shasta 1524 Comment
  CAS-BOT-BC301103  Eriophyllum lanatum var. achilleoides J. H. Thomas 1954-5-14 4182 Siskiyou Southwestern Siskiyou County. Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville between Lat. 41 deg. 03' and 41 deg. 06'N., and Long. 122 deg. 58' and 123 deg. 03' W. 1219 Comment
  POM208254  Eriophyllum lanatum var. achilleoides L. C. Wheeler 1934-6-2 2618 Siskiyou Oak Knoll ranger station, Klamath River; Mt. Diablo Mer. 671 Comment
  RSA715933  Eriophyllum lanatum var. grandiflorum L. Ahart, John Dittes 2005-6-10 12090 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
  RSA120934  Eriophyllum lanatum var. integrifolium G. D. Barbe 1957-7-14 392 Siskiyou Salmon River W/S of private road about 1 mile south of boundary-gate of Salmon-Trinity Alps Primative Area, Klamath National Forest, south of Big Flat Public Camp 1524 Comment
  CAS-BOT-BC94802  Eriophyllum lanatum var. lanceolatum R. C. Wenk 2008-7-24 939 Siskiyou Kangaroo Lake, S of Gazelle-Callahan Road, top of ridge S of lake 1981 Comment
  HSC68984  Eriophyllum lanatum var. lanceolatum Maralyn A. Renner 1980-7-24 2002 Siskiyou Lily Pad Lake 1768 Comment
  RSA166005  Eriophyllum lanatum var. lanceolatum Donald Myrick 1961-6-20 274 Siskiyou Near Mt. Shasta City 1067 Comment
  RSA78806  Eriophyllum lanatum var. lanceolatum P. A. Munz 1952-7-3 17920 Siskiyou Ft. Goff Public Camp, Klamath River 366 Comment
  SJSU6503  Eriophyllum lanatum var. lanceolatum R. W. Trivelpiece 1972-6-18 125 Siskiyou Douglas Cr near Klamath R c. 9 mi SW of Happy Camp 807 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
  UCD132195  Eriophyllum lanatum var. lanceolatum J. M. Tucker; L. K. Mann, Sandra L. Holloway 1963-8-18 3751 Siskiyou southwestern ridge of Black Marble Mountain, Marble Mountain Wilderness Area. 2133 Comment
  CHSC91383  Erodium cicutarium Lowell Ahart; John Dittes 2005-6-10 12058 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
  UC1094384  Eryngium articulatum R. C. Bacigalupi with S. Galen Smith June 1957 5972 Siskiyou ca. 2 mi. n. Weed (along Hwy. 99) 1036 Comment
  UC375297  Erysimum capitatum Geo. D. Butler 1908-6-27 41 Siskiyou Forest Home Mountain Comment
  CAS-BOT-BC54581  Erysimum capitatum L. B. Kildale 1930-6-1 9700 Siskiyou Salmon River at Crapo Creek. Comment
  HSC6754  Erysimum capitatum var. purshii R. C. Wunner 1965-6-10 139 Siskiyou California Lava Beds National Monument, E side of Caldwell Butte above Caldwell Minor 1463 Comment
  CAS-BOT-BC55118  Erysimum perenne Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mountains. Skyhigh Lake. Comment
  CAS-BOT-BC105089  Erythranthe linearifolia R. C. Wenk 2008-7-25 961 Siskiyou 9.5 miles W of Callahan on Forest Highway 93 / Cecilville Rd. 1592 Comment
  CHSC35569  Erythranthe microphylla James P. Smith 1973-5-5 6421 Siskiyou Along Cook and Green Pass road. Comment
  RSA96730  Erythronium Percy C. Everett, E. K. Balls 1954-10-13 20283 Siskiyou Canyon Creek above junction of trails to Kangaroo Mountain and West Fork Seiad Creek, 6.6 miles northeast from Highway 96 671 Comment
  SEINET12044932  Erythronium citrinum E. I. Applegate 1932-1 7059 Siskiyou Quartz Valley, near Fort Jones Comment
  JEPS50833  Erythronium grandiflorum Theodore Niehaus 1967-7-3 769 Siskiyou Sky High Lakes Marble Mt. Wilderness Area Comment
  UC454408  Erythronium klamathense I. J. Condit 1911-7-28 Siskiyou Castle Lake 1981 Comment
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Mar 5 2007
  CHSC2269  Erythronium purpurascens M. Yoder 1941-6-28 Siskiyou Castle Lake. 1950 Comment
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Oct 3 2011
  SEINET10924656 Image available Eschscholzia californica Edwin B. Copel 1903-7-2 Copeland 3532 Siskiyou Klamathon. On a dry hill. Comment
  NY1085467  Eschscholzia confinis C. F. Baker 1903-7-2 3532 Siskiyou Klamathon Comment
  UCD77363  Eucephalus ledophyllus Robert E. Preston 2001-7-21 1705 Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 1920 Comment
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Nov 7 2014
  HSC41059  Eucephalus ledophyllus var. ledophyllus J. O. Sawyer 1969-8-18 1981 Siskiyou S of South Sugar Lake 2073 Comment
  RSA433517  Euphorbia spathulata W. Bridge Cooke 1940-6-20 15154 Siskiyou Along the Pacific Highway (US99) in the Klamath River Gorge below Hornbrook. Comment
  CAS-BOT-BC310629  Eurybia radulina L. E. Smith 1913-7-24 486 Siskiyou McCloud Comment
  CAS-BOT-BC310634  Eurybia radulina Alice Eastwood 1912-7-21 1281 Siskiyou Sisson Comment
  HSC101741  Festuca bromoides J. P. Smith, J. O. Sawyer 2010-5-2 12802 Siskiyou Oak Bottom River Access Road 175 Comment
  UCD65876  Festuca californica subsp. californica A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3441 Siskiyou Near Happy Camp above the Klamath River. Comment
  UCD65897  Festuca californica subsp. californica G. L. Stebbins Jr.; A. A. Beetle 1942-6-1 3266 Siskiyou 15 miles north of Happy Camp, above Indian Creek. 1219 Comment
  CDA28209  Festuca elmeri D. Osterhandt, D. H. Shaw 1978-5-18 Siskiyou Fork of Salmon, Reforestation plantation. 0 Comment
  HSC68574  Festuca idahoensis Maralyn A. Renner 1980-6-23 977 Siskiyou W Fork Seiad Creek 878 Comment
  RSA239115  Festuca idahoensis Frederick W. Oettinger 1969-8-16 1410 Siskiyou Northeast Wire Grass Meadow, above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  RSA414219  Festuca idahoensis M. B. Dunkle 1945-7-22 s.n. Siskiyou Marble Mts., Klamath National Forest. Comment
  UCSC000033  Festuca idahoensis H. S. Yates 1936-6-21 5826 Siskiyou North base of Wintoon Butte 1219 Comment
  SEINET10521968  Festuca idahoensis Stillman 1976-6-25 STILLMAN 99 Siskiyou Scott bar quad. T43n,r12w,sec.15. Montane and subalpine meadows. Marble Mountain wilderness area. Between marble gap and elk valley trail Comment
  UC207708  Festuca occidentalis Geo. D. Butler 1910-7-12 1752 Siskiyou Shackleford Creek 1219 Comment
  HSC82221  Festuca pratensis Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4541 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  JEPS45829  Festuca roemeri Duncan Dunning 1922-6-6 Siskiyou nw of Fort Jones; Moffett Creek Comment
  CAS-BOT-BC279069  Festuca rubra Peter H. Raven 1956-9-4 10400 Siskiyou South side of Mt. Eddy 2560 Comment
  RSA451784  Fragaria californica M. B. Dunkle 1944-6-25 9026 Siskiyou Siskiyou National Forest Comment
  HSC69499  Fragaria vesca John Palmer 1980-8-13 763 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  HSC92  Fragaria vesca William J. Ferlatte 1967-6-5 487 Siskiyou Big Flat, near public camp 1524 Comment
  HSC69376  Fragaria virginiana J. O. Sawyer, J. Cole 1980-7-19 3680 Siskiyou Near FS Rd. 45N0 2018 Comment
  HSC67688  Frangula californica John Palmer 1980-7-24 634 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  CAS-BOT-BC53258  Frangula californica subsp. californica Wm. Bridge Cooke 1938-8-5 11436 Siskiyou MacBride Spring Road 1524 Comment
  CAS-BOT-BC59983  Frangula purshiana G. B. Grant 2000-1-1 s.n. Siskiyou unspecified. Comment
  HSC59596  Frangula purshiana J. P. Smith, Steve Selva 1970-6-16 4087 Siskiyou 7 mi. W of Sawyers Bar on road to Forks of Salmon Comment
  CAS-BOT-BC55719  Frangula rubra subsp. obtusissima A. A. Heller 1905-6-1 s.n. Siskiyou Between Upper Soda Spring and Shasta Retreat Comment
  UC15017  Fritillaria pudica F. W. Hooper 1897-3-27 Siskiyou Litttle Shasta Comment
  HSC31734  Fritillaria recurva Glenn McGourty 1974-5-25 55 Siskiyou 1402 Comment
  RSA238877  Galium aparine Frederick W. Oettinger 1969-8-1 1131 Siskiyou N of Wire Grass Meadow. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1677 Comment
  RSA610764  Galium bifolium Louis C. Wheeler 1935-6-27 3597 Siskiyou Marble Mountains: Etna Creek. 1524 Comment
  JEPS26662  Galium bolanderi Lauramay T. Dempster 1961-7-1 1833 Siskiyou just s Oregon border (s slope of mt); White Mountain Comment
  UC164088  Galium bolanderi Geo. D. Butler 1908-7-19 999 Siskiyou Humbug Creek Comment
  JEPS26663  Galium bolanderi Lauramay T. Dempster 1961-7-2 1846 Siskiyou Sugar Pine Gulch Scott River (s of Steelhead) Comment
  RSA756845  Galium glabrescens Barbara Ertter 1990-7-14 9329 Siskiyou Wagon Creek on east side of Mt. Eddy, ca. 4 miles west of Mt. Shasta City Comment
  UCSB17111  Galium glabrescens subsp. glabrescens Hardham, Clare 1961-6-30 Siskiyou White Moutnain, Siskiyou Mountains Comment
  UC220540  Galium grayanum H. E. Brown Jun 11 1897-Jun 16 1897 435 Siskiyou n side Mt. Shasta 1524 Comment
  HSC49954  Galium serpenticum subsp. scotticum G. L. Clifton, Ground 1978-6-30 1661 Siskiyou Near Forest House, close to the town of Yreka 1098 Comment
  UC618722  Galium trifidum W. Bridge Cooke 1938-7-29 11414 Siskiyou in narrow stream between two meadows Mt. Shasta, Wagon Camp Comment
  UCD80889  Galium trifidum subsp. subbiflorum Robert E. Preston 2001-6-23 1583 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, at Hemlock Lake. 1889 Comment
  UC1258469  Galium triflorum John Palmer 1980-8-12 686 Siskiyou se Wards Gap; Klamath National Forest, Condry Mtn. Quad 1188 Comment
  HSC400  Galium triflorum William J. Ferlatte 1967-8-19 1033 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's, near 'Riverside 1524 Comment
  RSA184795  Galium triflorum Gilbert Muth 1966-7-29 461 Siskiyou By waterfall. Marble Valley. Marble Mtns. 1799 Comment
  CAS-BOT-BC182274  Garrya fremontii L. E. Smith 1913-5-28 310 Siskiyou Yreka Comment
  SD219046  Garrya fremontii R. F. Thorne 1969-8-23 63348 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 1159 Comment
  UCSB24872  Garrya fremontii Favero, R. 1968-3-27 Siskiyou on southwest steep slopes; 1.5 miles west of Yreka, Calif, on Humbug road, Humbug Mountain 975 Comment
  RSA597979  Gaultheria ovatifolia L. C. Wheeler 1963-8-29 8302 Siskiyou Siskiyou Mountains. West fork Clear Creek. 1341 Comment
  UC1409237  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1969-8-14 1380 Siskiyou English Lake Salmon Mountains, Marble Mountain Wilderness Area (camp site, w Siskiyou Co., high lake basins in vicinity of English Peak) 1737 Comment
  UC873638  Gayophytum diffusum subsp. parviflorum P. A. Munz 1941-9-10 16307 Siskiyou above Horse Camp Creek (near); Mt. Shasta Comment
  HSC184  Gayophytum diffusum subsp. parviflorum William J. Ferlatte 1966-8-3 256 Siskiyou Mtn. Meadow Ranch 1524 Comment
  HSC29482  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1968-8-7 434 Siskiyou Salmon Mtns., E side of Hancock Lake 1890 Comment
  POM261010  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1941-9-10 16307 Siskiyou In the yard at Horse Camp, Mt. Shasta. 2439 Comment
  JEPS24633  Gayophytum heterozygum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6788 Siskiyou a little above and e McBride Springs (s slopes of mt.); Mt. Shasta 1432 Comment
  UC422807  Gayophytum racemosum Milo S. Baker 1898-8-1 504 Siskiyou Medicine Lake; sw side Comment
  SEINET7040084  Gayophytum ramosissimum A. G. Vestal 1963-6-1 s.n. Siskiyou Road to Lake Shastina [Dwinnell Reservoir]. Lake Shastina Quad. UTM Zone 10, 548843mE, 4594393mN Comment
  CAS-BOT-BC217413  Gentiana plurisetosa Doris K. Kildale 1928-8-19 6508 Siskiyou English Lake, head of north fork of Salmon River 1828 Comment
  RSA479473  Gentiana plurisetosa Theodore F. Niehaus 1972-8-29 935 Siskiyou About 1/4-1/2 mile east on right side (south) of Old Horse Trail (to Trinity Summit Station) directly east from crossing of new forest road at Oregon Creek, a tributary of upper Tish-Tang a Tang Creek, western Salmon Mountains. 1707 Comment
  POM76338  Gentiana plurisetosa Geo. D. Butler 1910-7-9 1709 Siskiyou Shackleford Creek. 1220 Comment
  SD76156  Gentianella amarella subsp. amarella Helen V. Witham 1969-10-4 560 Siskiyou In bog above Kangaroo Lake, Scott Mountains. 2100 Comment
  UC204455  Geranium bicknellii A. A. Heller 1914-8-25 11715 Siskiyou near Deetz station 1158 Comment
  UC106824  Gilia capitata subsp. capitata Brandegee July 1887 Siskiyou Sissons Comment
  HSC22096  Glyceria elata J. O. Sawyer 1968-7-10 509 Siskiyou On Sugar Creek just above confluence with S Sugar Creek 1707 Comment
  HSC22139  Glyceria elata J. O. Sawyer 1968-7-10 494 Siskiyou 1768 Comment
  CAS-BOT-BC302664  Gnaphalium palustre Geo. B. Grant 1902-9-6 5088 Siskiyou Sisson Comment
  JEPS34044  Gnaphalium palustre W. L. Jepson 1940-7-3 20101 Siskiyou Big Bear Flat (large mdw. e 5 mi se of Bartle) Big Bear Flat 1219 Comment
  CDA6018  Gnaphalium palustre T. R. Haig, F. D. Horn 1979-9-19 Siskiyou Sharp Mountain Reservoir southeast of Mount Hebron. 0 Comment
  RSA237526  Gnaphalium palustre Frederick W. Oettinger 1969-8-14 1368 Siskiyou Campsite, English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  POM168319  Goodyera oblongifolia E. B. Copeland 1903-8-19 3929 Siskiyou Mt. Eddy 1372 Comment
  UC885859  Gratiola ebracteata Louis C. Wheeler 1935-6-13 3570 Siskiyou Greenview , Greenview (Scott Valley) 883 Comment
  POM215865  Gratiola ebracteata Louis C. Wheeler 1935-6-13 3570 Siskiyou Greenview, Scott Valley. 884 Comment
  POM58287  Grindelia nana E. B. Copeland 1903-8-14 3884 Siskiyou Sisson. Comment
  SDSU2695  Grindelia nana D. F. Howe 1961-8-3 3178 Siskiyou 26.5 miles east of Shasta on #89. 1219 Comment
  UC573114  Hackelia bella Dorothy Tebbe 1929-7-15 133 Siskiyou Salmon Summit; Salmon Mountains Comment
  HSC37566  Hackelia californica A. M. Montalvo, Ackerman 1975-7-19 588 Siskiyou 3 mi. E of McCloud off Hwy. 89 on F.S. Rd. 39N13 1067 Comment
  HSC61913  Hackelia micrantha Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  HSC78208  Hackelia micrantha L. P. Janeway 1983-7-31 470 Siskiyou Poker Flat, upper portion of meadow. 1524 Comment
  HSC810  Hackelia micrantha William J. Ferlatte 1967-7-26 737 Siskiyou Caribou Basin 1982 Comment
  RSA183748  Hackelia micrantha Gilbert Muth 1965-8-17 309 Siskiyou Marble Valley, Marbles Mts. Comment
  UC637164  Hackelia setosa Edward Lee 1934-8-14 1121 Siskiyou w slope of Little Grayback 1706 Comment
  RSA235927  Hackelia setosa J. L. Gentry Jr., David Vierig 1968-6-17 2062 Siskiyou Siskiyou County: Siskiyou Mtns, 20.9 miles N of Happy Camp) 2 miles from jct of HS Forest raods 196 & 1916B, onr road 1916. 1372 Comment
  RSA495512  Hackelia setosa Elaine Joyal, D. Mehlman 1988-6-25 1271 Siskiyou Happy Camp - Takilma road at turn-off to Bolan Lake 1524 Comment
  UC796499  Hastingsia alba Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11730 Siskiyou French Creek Logging Road w Callahan; w of Callahan 1066 Comment
  CAS-BOT-BC504602  Hastingsia alba J. W. Tilden 1946-6-16 s.n. Siskiyou South of Yreka Comment
  CAS-BOT-BC504609  Hastingsia alba Alice Eastwood 1912-7-24 1362 Siskiyou Castella Comment
  CDA39324  Hastingsia alba T. C. Fuller 1958-6-19 1821 Siskiyou Highway 99, 3 miles south of Gazelle. 0 Comment
  CAS-BOT-BC302449  Hazardia whitneyi var. discoidea Gilbert J. Muth 1969-8-10 1344 Siskiyou Red Mountain Ridge Comment
  LA203710  Hazardia whitneyi var. discoidea Louis Wheeler; 1934-8-5 3045 Siskiyou Siskiyou Mountains, Condrey Mt 2163 Comment
  CAS-BOT-BC306352  Helenium L. E. Smith 1913-8-30 532 Siskiyou Mount Eddy Comment
  UC165252  Helenium autumnale Geo. D. Butler 1908-8-30 319 Siskiyou near Fort Jones; Scott River Comment
  CAS-BOT-BC306752  Helenium bigelovii Doris K. Kildale 1928-8-18 6471 Siskiyou Head of north fork of Salmon River at Finleys Upper Camp Comment
  HSC81982  Helenium bigelovii Thomas W. Nelson, Jane P. Nelson 1979-6-16 4856 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  UCR21117  Helenium bigelovii T. W. Fisher, R. E. Orth, Oatman 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  RSA237437  Helenium bigelovii Frederick W. Oettinger 1968-8-12 492 Siskiyou Tobacco Lake trail. The Salmon Mountains; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1890 Comment
  CAS-BOT-BC314844  Helianthella californica var. shastensis Harley P. Chandler 1901-6-1 1535 Siskiyou Klamath River 426 Comment
  HSC26927  Helianthus bolanderi J. P. Smith, J. O. Sawyer 1971-9-18 4837 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  HSC44962  Hemizonella minima J. O. Sawyer 1978-6-16 3225 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  UC1400372  Heracleum lanatum Frederick W. Oettinger 1968-8-15 522 Siskiyou s.e. side Hancock Lake; Salmon Mts., High Lake Basins, English Peak vicinity, Marble 1935 Comment
  HSC76749  Heracleum maximum K. T. Stillman 1976-7-15 253 Siskiyou Marble Mountain Wilderness Area. 1951 Comment
  HSC29475  Heracleum maximum Frederick W. Oettinger 1968-8-15 522 Siskiyou Marble Mountains Wilderness Area, High Lakes Basins, SE side of Hancock Lake along the lake trail 1936 Comment
  HSC96738  Hesperochiron californicus M. Mesler 2006-7-2 624 Siskiyou Trail to E of Boulder Lake 1829 Comment
  OBI7192  Hesperocyparis bakeri Carl B. Wolf and E. R. Johnson, E. R. Johnson 1934-10-8 6166 Siskiyou Modoc Lava beds, 1 mi NE of Timbered crater on Old Stage rd from Dana to Little Hot Springs Valley 1219 Comment
  UC1034060  Hesperolinon micranthum W. Bridge Cooke 1941-9-5 16260 Siskiyou along the Memorial Hwy Mt. Shasta Comment
  UC1045251  Hesperolinon micranthum W. Bridge Cooke 1940-7-12 15334 Siskiyou along the Memorial Hwy Mount Shasta Comment
  JEPS24011  Hesperolinon micranthum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6872 Siskiyou along the road 4.7 mi below (n of) Scott Mtn. (road summit, just s of and above Callahan) 1127 Comment
  RSA435709  Hesperolinon micranthum Louis C. Wheeler 1934-6-2 2614 Siskiyou Oak Knoll Ranger Station, Klamath River. Siskiyou Mtns. (Mt Diablo Mer.) 671 Comment
  HSC36428  Heuchera merriamii J. O. Sawyer 1969-7-9 1253 Siskiyou W facing slope above Bingham Lake 2317 Comment
  UC637118  Heuchera merriamii Edward Lee 1934-8-14 1102 Siskiyou near summit of Little Grayback 1859 Comment
  HSC64867  Heuchera micrantha J. P. Smith 1976-5-5 8695 Siskiyou Road between Forks of Salmon and Somes Bar 366 Comment
  HSC27717  Heuchera micrantha Carl W. Mize 1972-6-8 16 Siskiyou Along trail on moist N slope 343 Comment
  HSC30651  Heuchera rubescens Frederick W. Oettinger 1969-9-4 1664 Siskiyou Marble Mtn. Wilderness Area, S side of Tobacco Lake Basin 1829 Comment
  CAS-BOT-BC319695  Hieracium albiflorum Alice Eastwood 1921-7-30 10995 Siskiyou Soda Creek Comment
  HSC29089  Hieracium albiflorum Frederick W. Oettinger 1968-8-12 491 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: S slope trail down to Tobacco Lake from Lily Pond 1921 Comment
  OBI55430  Hieracium albiflorum David J. Keil 1992-7-20 23489 Siskiyou Klamath NF, W of Fort Jones .Along forest rd 44N45, 2 mi S of Scott river rd 1000 Comment
  RSA120939  Hieracium albiflorum H. K. Wagnon 1957-8-11 1712 Siskiyou East slope of Mt. Shasta, along Ash Cr., ca. 1 mi N of Military Pass Rd. Comment
  UC642532  Hieracium greenei W. Bridge Cooke 1939-8-25 13919 Siskiyou above MacBride Springs; Mount Shasta 1676 Comment
  CAS-BOT-BC318544  Hieracium greenei Geo. D. Butler 1980-7-20 328 Siskiyou Humbug Creek Comment
  HSC67805  Hieracium horridum J. O. Sawyer, J. Cole 1980-7-22 3962 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  UC897886  Hieracium nudicaule Alice Eastwood 1912-7-15 1083 Siskiyou McCloud Comment
  HSC36472  Hieracium scouleri J. O. Sawyer 1969-8-1 1692 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  JEPS94997  Hieracium scouleri Vernon Oswald and Lowell Ahart 1997-7-28 8777 Siskiyou Forest Route 56. 3.7 mi east of Forest Route 49, edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave. Comment
  RSA238739  Hieracium scouleri Frederick W. Oettinger, R. F. Thorne 1969-8-4 1170 Siskiyou Near outlet of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  CAS-BOT-BC320110  Hieracium triste J. M. Tucker 1950-7-23 1942 Siskiyou Panther Meadows, south slope of Mount Shasta 2407 Comment
  UC1409289  Hieracium triste Frederick W. Oettinger 1969-9-5 1673 Siskiyou Upper English Lake; Marble Mountain Wilderness Area. 1798 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
  CDA12233  Holodiscus discolor G. F. Hrusa 1993-8-14 11401 Siskiyou Region of Little Grayback Mountain; Summit of pass between Happy Camp, Ca. & O' Brien, Oregon, on Ca. side of state boundary. Comment
  HSC65417  Holodiscus discolor Rich White 1978-7-20 261 Siskiyou Ridge top E of Raspberry Lake 1768 Comment
  LA207930  Holodiscus discolor var. glabrescens W. B. C.; 1938-8-18 11505 Siskiyou Mount Shasta, Above Horse Camp 2438 Comment
  CHSC69087  Holodiscus microphyllus var. glabrescens Vernon Oswald; Lowell Ahart 1997-7-28 8773 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi south of Medicine Lake. 1365 Comment
  UC1181805  Holosteum umbellatum subsp. umbellatum Dorothy Parker 1950-4-1 384 Siskiyou Siskiyou Mts., Scott Valley, Hartstrand Gulch, along road Scott Valley; Siskiyou Mts., , Hartstrand Gulch 853 Comment
  HSC39648  Hordeum brachyantherum J. P. Smith, J. O. Sawyer 1971-9-17 4676 Siskiyou Little Duck Lake Comment
  CHSC91223  Hordeum depressum Lowell Ahart; John Dittes 2005-6-9 12042 Siskiyou North margin of a meadow area along a small drainage, on the west side of a poor rock fence, about 200 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  RSA715639  Hordeum depressum L. Ahart, John Dittes 2005-6-9 12001 Siskiyou On the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 22 1/2 miles (air) east-southeast of Grenada. 775 Comment
  CAS-BOT-BC284740  Hordeum jubatum Dorothy Parker 1948-7-16 78 Siskiyou In Plowmans Valley, East Fork of Scott River 1188 Comment
  CAS-BOT-BC285077  Hordeum marinum subsp. gussoneanum Louis C. Wheeler 1934-6-16 2721 Siskiyou Ditch Creek, Siskiyou Mts. 822 Comment
  CAS-BOT-BC143965  Horkelia daucifolia D. E. Breedlove 1962-6-11 3340 Siskiyou Along Scott River, 0.5 mile south of Scott Bar 548 Comment
  CDA16163  Horkelia daucifolia G. F. Hrusa 1998-5-25 14471 Siskiyou Klamath Ranges; At +- Pioneer (1-2 mi N on Frontage Rd. of I-5), +-10 mi S of Weed, near Mt. Shasta city. 1066 Comment
  UC164307  Horkelia daucifolia Geo. D. Butler 1910-5-4 1272 Siskiyou near Yreka Comment
  UCSB12365  Horkelia daucifolia Dearing, Hugh; Dearing, Margaret 1939-6-3 Siskiyou Near Scotts Bar Comment
  SEINET10483364  Horkelia fusca subsp. parviflora Mary Susan Taylor 1980-8-18 Taylor 3258 Siskiyou T40N R2E sw sec 30. Shasta-Trinity Natl Forest, Yellow Pine Forest plantation, ca. 50 ft E of Hwy 15, ca. 3 mi N of it jctw ith Hwy 89, ca. 17 mi E of McCloud. With J. Prouty & E. Heinz. Comment
  SBBG115868  Horkelia fusca var. parviflora R. E. Preston 2001-7-21 1701 Siskiyou near S end of Antelope Crk Meadow 1633 Comment
  RSA451563  Horkelia tridentata Louis C. Wheeler 1934-6-29 2821 Siskiyou Beaver Creek 1341 Comment
  UC221640  Horkelia tridentata subsp. tridentata H. E. Brown Jul 1 1897-Jul 15 1897 479 Siskiyou n side Mt. Shasta 1524 Comment
  UC453992  Horkelia tridentata subsp. tridentata I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Summit of Mt. Bradley 1981 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-BC201122  Hosackia crassifolia L. E. Smith 1913-6-29 440 Siskiyou Rainbow Comment
  CAS-BOT-BC201129  Hosackia crassifolia A. A. Heller 1905-6-5 7972 Siskiyou Between Shasta Retreat and Shasta Springs Comment
  HSC103838  Hosackia crassifolia G. Fred Hrusa 1998-7-5 14702 Siskiyou Cedar Camp Rd., about 5 mi. E of Weitchpec on Hwy. 96, N side of Hwy. Mile 8.8 Comment
  CAS-BOT-BC201134  Hosackia crassifolia Wm. Bridge Cooke 1940-7-26 15360 Siskiyou Around the Black Butte Spring Comment
  SJSU2572  Hosackia oblongifolia var. oblongifolia H. L. Buckalew 1962-7-14 Siskiyou Near Poker Flat c. 2 mi W of junction of Indian Cr with W Branch of Indian Cr, Siskiyou Mts 1143 Comment
  CHSC63336  Hosackia pinnata Vernon H. Oswald; Lowell Ahart 1994-7-11 6401 Siskiyou Gumboot Creek on the upstream side of Forest Rd. 26 (to Mt. Shasta), ca. 0.5 mi NE of Gumboot Lake, W of Dunsmuir. 1783 Comment
  CHSC30245  Hulsea nana M. S. Taylor; J. Prouty, E. Heinitz 1980-8-19 3265 Siskiyou Paint Pot Crater. 1920 Comment
  HSC93039  Hydrophyllum occidentale Jennifer Whipple 1976-6-12 985 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2317 Comment
  JEPS80499  Hydrophyllum occidentale Gilbert Muth 1966-7-8 361 Siskiyou Marble Valley Meadow; Marble Mt. Wilderness Area 1792 Comment
  UC585172  Hydrophyllum occidentale E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2003 Siskiyou 1.5 mi w Mt. Shasta City (above Sulloway Creek, spur of Rainbow Ridge, e and ne slope); Rainbow Ridge 1188 Comment
  RSA0110956  Hydrophyllum occidentale Gilbert Muth 1966-7-8 361 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  HSC77091  Hypericum anagalloides K. T. Stillman 1976-7-30 334 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  CAS-BOT-BC400985  Hypericum anagalloides Doris K. Kildale 1928-7-4 5526 Siskiyou 1 1/2 miles east of Summit between Sawyers Bar & Etna Mills Comment
  JEPS66838  Hypericum perforatum W. L. Kleaver Siskiyou Yreka Comment
  CAS-BOT-BC88622  Idahoa scapigera George Dexter Butler 1909-2-1 571 Siskiyou Near Yreka. Comment
  HSC100273  Iliamna bakeri J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13067 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 1838 Comment
  HSC89866  Iliamna bakeri L. R. Heckard, Lincoln Constance, Robert Ornduff 1969-6-24 2290 Siskiyou NW side of Mt. Shasta along Hwy. 97, 0.7 miles S of Bolam road junction Comment
  HSC42160  Ipomopsis aggregata J. D. Mastrogiuseppe 1974-9-2 166 Siskiyou W slope of ridge of Red Rock Mtn. 2134 Comment
  JEPS796  Ipomopsis aggregata Willis L. Jepson Jul 24 1894-Aug 10 1894 15049 Siskiyou Sisson Comment
  SJSU2581  Ipomopsis aggregata H. L. Buckalew 1962-7-12 Siskiyou near Poker Flat c. 4 mi W of junction of Indian Cr with W Branch Indian Cr, Siskiyou Mts 1089 Comment
  UC164139  Ipomopsis aggregata Geo. D. Butler 1910-7-12 1744 Siskiyou Shackleford Creek 1219 Comment
  UC195395  Ipomopsis aggregata A. A. Heller 1914-8-26 11720 Siskiyou Weed 1066 Comment
  UC648263  Ipomopsis aggregata John Thomas Howell 1939-8-2 14898 Siskiyou Spirit Lake Marble Mtns Comment
  UC705684  Ipomopsis aggregata Marion Ownbey and Fred G. Meyer 1940-7-5 2181 Siskiyou e side Mt. Shasta Comment
  SD88477  Ipomopsis aggregata Darley F. Howe 1972-7-4 Siskiyou Easterly from Del Norte-Siskiyou Co. marker on road to Youngs Valley, Sanger Peak road. 1646 Comment
  UCD118229  Ipomopsis aggregata J. M. Tucker 1948-8-2 1758 Siskiyou McCloud Cemetery, 2 miles south of McCloud. Comment
  CHSC26181  Ipomopsis aggregata subsp. formosissima J. P. Kroessig 1977-8-5 49 Siskiyou Roadside, s of jct of Everitt Memorial Hwy and McBridge Springs Campground access road, ca 4.5 km n of Mt Shasta City. 1460 Comment
  CHSC63609  Ipomopsis aggregata subsp. formosissima Vernon H. Oswald; Lowell Ahart 1994-8-10 6463 Siskiyou FS 31 0.6 mi E of Ski Park Hwy. (FS 88), ca. 5 mi (air) NW of McCloud. Edge of road. 1584 Comment
  RSA31649  Ipomopsis aggregata subsp. formosissima A. A. Heller 1938-7-12 15250 Siskiyou Occasional plants along U.S. Highway #97 in gravelly soil 5 miles north of Weed. 1067 Comment
  SEINET10529086  Iris hartwegii Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6979 Siskiyou Western yellow pine, libocedrus, douglas fir forest, 6 mi. Sw of callahan 1524 Comment
  HSC27648  Iris tenuissima Carl W. Mize 1972-6-8 5 Siskiyou Along the main trail 328 Comment
  CDA12116  Isatis tinctoria G. F. Hrusa 1990-4-2 7841 Siskiyou Siskiyou Mountains; Old Shasta River Rd. (Hwy 263) approx. 3 m. S of intersection w/Hwy 96, and 10 miles N of Yreka. Comment
  HSC85899  Isatis tinctoria Barry Silver 1986-5-24 613 Siskiyou West Branch Campground, Klamath National Forest, 7 mi. NW of Happy Camp, near Indian Creek 671 Comment
  RSA256698  Isatis tinctoria J. P. Smith 1974-5-25 7394 Siskiyou Along road 8, 0.9 miles from its jct with State Route 3. 976 Comment
  UCD115206  Isatis tinctoria J. M. Tucker; L. K. Mann 1963-7-4 3688 Siskiyou 8.5 miles (by road) northeast of Fort Jones. Comment
  CAS-BOT-BC57681  Isoetes bolanderi Elmer I. Applegate 1923-8-19 3889 Siskiyou Medicine Lake Comment
  UC1408844  Isoetes bolanderi Frederick W. Oettinger 1968-8-1 345 Siskiyou Hancock Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1935 Comment
  RSA237984  Isoetes occidentalis Frederick W. Oettinger 1969-8-7 1268 Siskiyou W end of English Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1753 Comment
  JEPS20046  Isopyrum stipitatum George D. Butler 1909-2-14 584 Siskiyou Butler's ranch near Yreka; near Yreka Comment
  JEPS60638  Isopyrum stipitatum Geo. D. Butler 1909-2-28 Siskiyou near Yreka Comment
  UC118418  Isopyrum stipitatum Thos. Howell April 1888 18 Siskiyou Hornbrook Comment
  CDA8048  Iva axillaris T. C. Fuller 1960-7-26 4879 Siskiyou Sam s Neck, ca. 10 miles southwest of Dorris. 0 Comment
  CHSC114171  Juglans hindsii R. E. Brainerd 2010-8-11 1739 Siskiyou Boles Creek in Weed between E, Lake Street and S. Weed Boulevard. UTM Zone 10 551456E 45888885820N 1048 Comment
  CAS-BOT-BC110016  Juncus W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow. Comment
  CAS-BOT-BC110018  Juncus Melissa A. Berry 1957-7-4 s.n. Siskiyou High CCC Road, south of Highway 96, between Ridge and Humbug roads. 1371 Comment
  UC618744  Juncus balticus unknown 1938-9-8 11660 Siskiyou Squaw Creek Meadows lower, in the largest meadow Mount Shasta, Squaw Creek Meadows Comment
  CHSC106109  Juncus balticus subsp. ater Lowell Ahart; John Dittes 2010-7-30 16950 Siskiyou On the south side of the Shasta River, about 80 yards west of the pipe across the Shasta River, about 200 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  UC1265336  Juncus covillei Frederick W. Oettinger 1969-8-18 1419 Siskiyou nw side Horse Range Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1821 Comment
  HSC19327  Juncus drummondii J. O. Sawyer 1969-8-4 1808 Siskiyou Above Sugar Lake 2134 Comment
  HSC78324  Juncus ensifolius L. P. Janeway 1983-8-16 544 Siskiyou Poker Flat 1524 Comment
  JEPS66981  Juncus ensifolius B. C. Goldsmith 1916-6-22 1 a Siskiyou McCloud Flat Mt. Shasta Comment
  UC637040  Juncus ensifolius Edward Lee 1934-8-13 1076 Siskiyou Happy Camp to Waldo (Oregon) road (watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  HSC36556  Juncus exiguus J. O. Sawyer 1969-6-12 914 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC22185  Juncus mertensianus J. O. Sawyer 1969-8-5 1748 Siskiyou W of Little Duck Lake 2073 Comment
  RSA238910  Juncus mertensianus Frederick W. Oettinger 1969-8-22 1501 Siskiyou On the south side of Horses Hole Pond above Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  JEPS63807  Juncus mexicanus B. C. Goldsmith 1916-9-29 31 Siskiyou Medicine Lake Mt. Hoffman 2042 Comment
  HSC14091  Juncus mexicanus R. C. Wunner 1965-6-22 259 Siskiyou Lava Beds National Monument, Canby Bay 1220 Comment
  RSA233686  Juncus mexicanus Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38955 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  HSC22107  Juncus nevadensis J. O. Sawyer 1969-8-5 1760 Siskiyou W of Little Duck Lake 2073 Comment
  HSC78392  Juncus nevadensis var. nevadensis L. P. Janeway 1983-9-11 685 Siskiyou Poker Flat 1524 Comment
  RSA758590  Juncus nevadensis var. nevadensis Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63403 Siskiyou Klamath Nat'l Forest, Salmon Mountains: Marble Mtn Wilderness, trail to Hancock Lake, above English Lake. 2073 Comment
  HSC69397  Juncus orthophyllus Maralyn A. Renner 1980-8-8 2451 Siskiyou Rattlesnake Meadow 1646 Comment
  HSC75661  Juncus parryi J. O. Sawyer, R. J. Cole 1980-7-20 3703 Siskiyou Little Glass Mtn. 1951 Comment
  NY21384  Juniperus communis W. B. Cooke 1939-7-26 13743 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
  CAS-BOT-BC81229  Juniperus occidentalis Doris K. Kildale 1928-7-5 5547 Siskiyou 10 miles north of Yreka on Pacific highway on Shasta River Comment
  UC401378  Juniperus occidentalis Geo. D. Butler 1908-7-1 1105 Siskiyou dry hills near Yreka Comment
  UC496193  Juniperus occidentalis Elmer I. Applegate 1932-4-15 7060 Siskiyou Scott Valley e side on dry rocky hillside Scott Valley Comment
  CHSC93548  Juniperus occidentalis var. occidentalis Lowell Ahart; John Dittes 2005-6-9 12021 Siskiyou Small low hill, north fence boundary, on the east side of a poor rock fence, about 350 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
  LA41201  Kalmia polifolia Wm. Bridge Cooke; 1938-9-8 11668 Siskiyou Mount Shasta, upper Heather Meadows along Squaw Valley Creek 2438 Comment
  POM210970  Kalmia polifolia subsp. microphylla L. C. Wheeler 1934-8-5 3037 Siskiyou Mud Springs, Middlehell Creek. 2011 Comment
  UC876882  Kalmia polifolia subsp. microphylla Louis C. Wheeler 1934-8-5 3037 Siskiyou Mud Springs, [Middlehell Creek] Mud Springs; Siskiyou Mountains, , Middlehell Creek 1676 Comment
  UC335726  Keckiella breviflora J. G. Lemmon Oct 1889 Siskiyou near Dunsmuir (Soda Spring); Soda Spring Comment
  HSC67714  Kelloggia galioides John Palmer 1980-7-24 614 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC82202  Kelloggia galioides Thomas W. Nelson, Jane P. Nelson 1980-7-5 5967 Siskiyou Fowler's Campground 1006 Comment
  UC397360  Kelloggia galioides Katharine Brandegee 1895-8-11 Siskiyou Mt. Shasta Comment
  UC455891  Kelloggia galioides I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake Comment
  UCR244765  Kelloggia galioides K. M. Meyer, A. Townesmith 2007-7-29 171 Siskiyou Shasta-Trinity National Forest; 0.3 mi. on 40N25 Rd., off Siskiyou County Rd. A10/Everitt Memorial Hwy 1805 Comment
  CDA43045  Kochia scoparia Michael Pitcairn 2014-9-11 s.n. Siskiyou Butte Valley; Dorris. Comment
  CAS-BOT-BC499653  Kopsiopsis strobilacea J. H. Thomas 1954-5-13 4127 Siskiyou Salmon Mountains, Klamath National Forest (sw part of county). Near South Fork of Salmon River, 5--9 mi SE of Cecilville, vicinity of Blind Horse Creek 1066 Comment
  CAS-BOT-BC499657  Kopsiopsis strobilacea A. M. Vollmer; L. Beane 1951-6-2 80 Siskiyou Happy Camp, Klamath River HIghway Comment
  JEPS36695  Lactuca canadensis W. L. Jepson 1894-1 Siskiyou Sisson Comment
  UC372675  Lathyrus brownii Geo. D. Butler 1910-5-15 1346 Siskiyou Greenhorn Mountain 1066 Comment
  UC164009  Lathyrus lanszwertii var. tracyi Geo. D. Butler 1910-5-5 1288 Siskiyou Humbug Mountain Comment
  CDA17136  Lathyrus nevadensis G. F. Hrusa 2001-6-6 15850 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  POM29213  Lathyrus pauciflorus subsp. brownii Geo. D. Butler 1910-6-3 1474 Siskiyou Greenhorn Mountain. Comment
  CHSC519  Lepidium campestre G. Spurlock 1935-6-1 Siskiyou Comment
  CAS-BOT-BC88925  Lepidium densiflorum var. densiflorum Geo. D. Butler 1910-6-27 1612 Siskiyou Yreka Creek. Comment
  UC375301  Lepidium densiflorum var. macrocarpum Geo. D. Butler 1909-7-14 130 Siskiyou near Yreka Comment
  CAS-BOT-BC89160  Lepidium draba A. A. Heller 1905-6-9 8006 Siskiyou Yreka. Comment
  CAS-BOT-BC89830  Lepidium montanum A. A. Heller 1928-6-9 14610 Siskiyou Along the Pacific Highway between Gazelle and Grenada. Comment
  NY76303  Lepidium montanum subsp. canescens A. A. Heller 1928-6-9 14610 Siskiyou Along the railroad between Gazelle and Grenada in the Shasta Valley Comment
  JEPS53718  Lepidium perfoliatum W. L. Jepson 1940-6-23 19985 Siskiyou e of Mayten (e side of Little Shasta Valley); Little Shasta Valley 883 Comment
  RSA715768  Lepidium perfoliatum L. Ahart, John Dittes 2005-6-9 11998 Siskiyou On the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2.5 miles (air) ESE of Grenada. 775 Comment
  UC1299648  Lepidium perfoliatum Freed W. Hoffman 1948-7-7 2545 Siskiyou near Aetna and Ft. Jones Roads junction Comment
  CAS-BOT-BC60147  Lepidium virginicum var. menziesii Carl B. Wolf 1927-8-27 1147 Siskiyou On the Klamath River 10 miles above the Salmon River. Comment
  JEPS2687 Image available Leptodactylon pungens W. L. Jepson 1940-6-23 19994 Siskiyou (e of) Mayten; Little Shasta Valley Comment
  HSC45992  Leptosiphon ciliatus J. P. Smith, Steve Selva 1970-6-16 4002 Siskiyou 5 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1189 Comment
  RSA211089  Leptosiphon ciliatus William J. Ferlatte 1967-6-27 537 Siskiyou Big Flat 1524 Comment
  SEINET11448032 Image available Lessingia leptoclada G. D. Butler 1910-8-13 1827 Siskiyou Scott Valley Comment
  CAS-BOT-BC341893  Lessingia nemaclada Ira L. Wiggins 1955-7-23 13461 Siskiyou Ridge W of China Creek, S side of S Fork of Salmon River 960 Comment
  CAS-BOT-BC341897  Lessingia nemaclada Edward Lee 1934-8-11 1041 Siskiyou East of the mouth of Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 441 Comment
  POM361831  Lessingia nemaclada Louis C. Wheeler 1934-7-16 2907 Siskiyou Gottville, Klamath River; Siskiyou Mts. 564 Comment
  CHSC298  Leucanthemum vulgare N. Jaekel 1939-6-27 Siskiyou Mt. Shasta. 2133 Comment
  UCSB14919  Leucanthemum vulgare 1962-6-10 Siskiyou On the north bank of the Klamath River at its junction with Goff Creek, 4.5 miles west of Seiad 411 Comment
  HSC4871  Leucothoe davisiae J. O. Sawyer 1968-7-23 620 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  HSC4439  Lewisia cotyledon William J. Ferlatte 1966-7-7 207 Siskiyou Caribou Basin 1982 Comment
  HSC18960  Lewisia cotyledon J. O. Sawyer 1969-7-1 979 Siskiyou Above Paynes Lake Creek 1951 Comment
  HSC29489  Lewisia cotyledon Frederick W. Oettinger 1968-9-6 746 Siskiyou Marble Mtn. Wilderness Area, ridge trail E of Tom's Lake 2134 Comment
  POM117377  Lewisia cotyledon Geo. D. Butler 1910-6-5 1527 Siskiyou Log Lake Comment
  JEPS74489  Lewisia cotyledon var. heckneri W. J. Ferlatte 1966-6-22 76 Siskiyou Josephine Lake basin Trinity Alps 1676 Comment
  HSC65270  Lewisia nevadensis Rich White 1978-7-6 252 Siskiyou Pond above Elk Hole 1524 Comment
  CAS-BOT-BC444425  Lewisia rediviva A. M. Vollmer; L. Beane 1951-5-31 18 Siskiyou Scott Mountain Comment
  HSC77041  Lewisia triphylla K. T. Stillman 1976-6-25 24 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  POM112698  Leymus triticoides Geo D. Butler 1910-6-13 1562 Siskiyou Yreka Creek Comment
  CDA32491  Leymus triticoides Unknown 1959-1-15 s.n. Siskiyou Ager, Southern Pacific Railway 0 Comment
  CAS-BOT-BC436533  Ligusticum apiifolium Alice Eastwood 1912-7-23 1322 Siskiyou Dunsmuir Comment
  HSC22241  Ligusticum californicum J. O. Sawyer 1969-8-4 1818 Siskiyou Above Sugar Lake 2134 Comment
  HSC69244  Ligusticum californicum Maralyn A. Renner 1980-8-6 2340 Siskiyou Cracker Meadow 1555 Comment
  UCR37840  Ligusticum californicum L. P. Janeway 1983-8-28 632 Siskiyou Poker Flat 1529 Comment
  SFV8559  Ligusticum californicum J. M. Tucker 1963-8-20 3786 Siskiyou Marble Mountain Wilderness. Headwaters of Canyon Creek. About 0.5 miles northeast of Marble Valley Guard Station. 1921 Comment
  HSC96299  Ligusticum grayi Gordon Leppig 1998-8-13 1003 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  SBBG25867  Ligusticum grayi D. Myrick 1966-8-8 1487 Siskiyou Lake Josephine, Mountain Meadow Ranch, Big Flat 1828 Comment
  UC1400373  Ligusticum grayi Robert F. Thorne and Fred Oettinger 1969-8-10 38967 Siskiyou s. slope Mt. Shasta (Panther Creek Meadows); Mt. Shasta nat'l Forest, , Panther Creek Meadows 2194 Comment
  HSC29247  Lilium kelleyanum Frederick W. Oettinger 1968-8-6 420 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  HSC36665  Lilium kelleyanum Brent Whitely 1975-6-28 92 Siskiyou 915 Comment
  SEINET10469573  Lilium kelleyanum Mary Susan Taylor 1980-7-8 Taylor 3099 Siskiyou T39N R5W ne sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on NW side of Castle Lake, along edge of lake. 1615 Comment
  JEPS124667 Image available Lilium parvum Himayat H. Naqvi July 13, Siskiyou Dead Horse Creek Canyon and junction bush way 89, about 500 feet south of the road. Comment
  HSC36707  Lilium washingtonianum subsp. purpurascens Brent Whiteley 1975-7-1 116 Siskiyou 671 Comment
  SJSU6496  Lilium washingtonianum subsp. purpurascens R. W. Trivelpiece 1972-6-24 129 Siskiyou near Slater Butte 3 mi E of Klamath River c. 7 mi N of Happy Camp 1158 Comment
  JEPS62032  Lilium washingtonianum subsp. washingtonianum Willis L. Jepson 1894-8-4 Siskiyou Mt. Shasta Comment
  CAS-BOT-BC133093  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 9 Siskiyou 3.5 miles northeast of the town of Mount Shasta 1402 Comment
  CAS-BOT-BC133097  Lilium washingtonianum subsp. washingtonianum Alice Eastwood 1912-7-22 1301 Siskiyou Sisson Comment
  UC164132  Linanthus bolanderi Geo. D. Butler 1910-4-14 1172 Siskiyou Yreka Comment
  UC726828  Linanthus ciliatus A. A. Heller 1938-7-12 15247 Siskiyou 5 mi n Weed (along U.S. Highway 97) Comment
  UCSB29033  Linanthus ciliatus var. ciliatus C. Hardham 1961-6-30 8013 Siskiyou NEAR WHITE MOUNTAIN 1828 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
  HSC30489  Linnaea borealis subsp. longiflora Frederick W. Oettinger 1969-8-9 1319 Siskiyou Stream crossing of N Fork River enroute to Abbott's Upper Cabin, Salmon Mtns. 1357 Comment
  HSC63254  Linum lewisii M. A. Baker 1979-7-30 1076 Siskiyou Marble Gap. 2280 Comment
  RSA789789  Linum lewisii var. lewisii Rebecca Wenk 2005-7-15 205 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail. Top of pass between Yellow Rose and Dorleska mines. 2134 Comment
  HSC4907  Listera caurina J. O. Sawyer 1968-7-10 484 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  UC4707  Listera convallarioides C. B. Bradley 1897-1 Siskiyou Comment
  SEINET13953010 Image available Lithocarpus densiflorus A. A. Heller 1915-1 12248 Siskiyou Wagon creek at foot of Mt. Eddy 1128 Comment
  POM301573  Lithocarpus densiflorus var. densiflorus Marion Ownbey, F. G. Meyer 1940-7-8 2231 Siskiyou Siskiyou Mountains, 17 miles north of Happy Camp. Comment
  CAS-BOT-BC36528  Lithocarpus densiflorus var. echinoides A. A. Heller 1918-6-16 13035 Siskiyou Mt. eddy, west of Sisson, on open southeastern slope 1524 Comment
  RSA3388  Lithocarpus densiflorus var. echinoides Carl B. Wolf 1931-9-2 2393 Siskiyou Above junction of McCloud road with the Pacific Highway. 1189 Comment
  RSA697649  Lithocarpus densiflorus var. echinoides Leo Miller 1938-07 s.n. Siskiyou Siskiyou Mnts. 1006 Comment
  UC1045211  Lithocarpus densiflorus var. echinoides unknown 1940-6-6 15031 Siskiyou along the Castle Lake Road Comment
  HSC64132  Lithophragma affine J. P. Smith 1973-5-5 6473 Siskiyou Along Cook and Green Pass Rd. Comment
  CAS-BOT-BC432320  Lithophragma campanulatum Roxana S. Ferris; Laura Lorraine 1948-6-12 11856 -A Siskiyou 1.5 miles below summit of Gazelle Mountain Grade, E side 1417 Comment
  CAS-BOT-BC325943  Lithospermum californicum A. M. Vollmer; L. Beane 1951-6-2 81 Siskiyou Happy Camp, Klamath River Highway Comment
  CAS-BOT-BC325939  Lithospermum californicum A. A. Heller 1905-6-13 8017 Siskiyou Shasta Springs. On the slope between the railroad and the river above Shasta Springs. Comment
  RSA30609  Lithospermum californicum Lincoln Constance, R. Rollins 1942-5-12 2899 Siskiyou Klamath River 12 miles S of Happy Camp. 305 Comment
  UC922404  Lomatium dissectum var. multifidum Annie M. Alexander and Louise Kellogg 1949-7-21 5830 Siskiyou Marble Mts., Paradise Lake 1920 Comment
  RSA184693  Lomatium dissectum var. multifidum Gilbert Muth 1966-7-25 447 Siskiyou Marble Mountain Lookout, Marble Mountains 2098 Comment
  UC909516  Lomatium engelmannii Ira L. Wiggins 1950-5-28 12361 Siskiyou margins Carmen Lake (ca. 1.5 mi. e.of Scott Mt. rd.) 1737 Comment
  HSC18971  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-6-28 6148 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  HSC76706  Lomatium macrocarpum K. T. Stillman 1976-7-14 225 Siskiyou Marble Mtn. Wilderness Area, Kings Castle 2073 Comment
  HSC76724  Lomatium macrocarpum K. T. Stillman 1976-8-7 382 Siskiyou Marble Mtn. Wilderness Area, Box Camp Mtn. 2195 Comment
  UCR51779  Lomatium macrocarpum M. O'Mera 1974-5-27 484 Siskiyou Along road 47N03. 1284 Comment
  HSC29129  Lomatium macrocarpum Frederick W. Oettinger 1969-7-10 958 Siskiyou Marble Mountain Wilderness Area, SSW of Upper English Lake 1921 Comment
  JEPS177  Lomatium peckianum Geo. D. Butler 1909-4-14 638 Siskiyou Block 5 Yreka Comment
  UC1552566  Lomatium peckianum Joe Molter and Sandy Maurer 1988-6-3 Siskiyou ca 3 mi s Hornbrook (on e side of Klamath River); e side of Klamath River 800 Comment
  HSC39323  Lomatium triternatum var. macrocarpum J. P. Smith 1974-5-26 7389 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC62310  Lonicera ciliosa Al Hobart 1968-6-25 Siskiyou Youngs Valley. Comment
  HSC69201  Lonicera conjugialis Maralyn A. Renner 1980-7-24 2080 Siskiyou Lily Pad Lake 1768 Comment
  CAS-BOT-BC240845  Lonicera interrupta Geo. D. Butler 1900-6-17 1571 Siskiyou Near Yreka Comment
  CAS-BOT-BC243925  Lonicera involucrata var. involucrata Volney Rattan 1879-1-1 s.n. Siskiyou Happy Camp Comment
  JEPS16020  Lonicera tatarica W. T. Mooney 1903-5-21 Siskiyou Yreka Comment
  SEINET11071691 Image available Lotus crassifolius A. A. Heller 1905-6-5 7972 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  UC80842  Lotus denticulatus Katharine Brandegee 1887-1 Siskiyou Edgewood Comment
  UC163679  Lotus humistratus Geo. D. Butler 1910-7-3 1623 Siskiyou Goosenest foothills Goosenest 1219 Comment
  UC454680  Lotus nevadensis var. nevadensis I. J. Condit 1911-7-1 Siskiyou Sisson Comment
  CDA27282  Lotus nevadensis var. nevadensis G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-21 2788 Siskiyou West of Motel 6, south of town, north of Greenhorn Creek Road, Yreka. Comment
  RSA240072  Lotus oblongifolius Frederick W. Oettinger 1969-8-12 1342 Siskiyou Abbotts Lower Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1189 Comment
  UC61648  Lotus oblongifolius var. oblongifolius Geo. B. Grant Sep 1902 5236 Siskiyou Shasta Springs Mount Shasta 609 Comment
  UC637133  Lotus oblongifolius var. oblongifolius Annetta Carter 1934-8-13 703 Siskiyou Happy Camp to Waldo (Oregon road, watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  HSC60910  Luetkea pectinata Al Hobart Siskiyou Black Butte Comment
  UCD113636  Luetkea pectinata Alfred H. Murphy 1960-8-10 60 G Siskiyou Klamath National Forest, below Black Mtn. 2072 Comment
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Apr 3 2015
  UCD109681  Lupinus A. A. Heller 1920-7-3 13407 Siskiyou at Metcalf's ranch, northeast base of Mt. Eddy in the Humid Transition zone. 1158 Comment
  SEINET10964911  Lupinus albicaulis subsp. shastensis David B. Dunn 1971-8-15 Dunn 18141 Siskiyou 0.5 mile e of mccloud ranger station on hwy 89. Yellow pine forest Comment
  UC563063  Lupinus albicaulis var. shastensis Elmer I. Applegate 1923-9-7 3953 Siskiyou Doggett Ridge Doggett Ridge, Siskiyou Mountains (s slope of the Siskiyou Mountains); , Doggett Ridge Comment
  UC725354  Lupinus albicaulis var. shastensis A. A. Heller 1940-7-25 15764 Siskiyou trail to Horse Camp Mt. Shasta (Mt. Shasta) Comment
  RSA3846  Lupinus albicaulis var. shastensis A. A. Heller 1927-8-1 14436 Siskiyou On the banks of the Sacramento, a short distance above Shasta Springs. Comment
  SEINET10491224  Lupinus albifrons var. albifrons Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 687 Siskiyou 11 miles n of weed, on us hwy 97; decomposed lava, sandy on slight s-e-facing Slope; assoc. With juniper and artemisia, purshia and arctostaphylos 1250 Comment
  SEINET10871210  Lupinus albifrons var. flumineus Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 689 Siskiyou 11 miles n of weed, on us hwy 97; decomposed lava, sandy on slight s-e-facing Slope; assoc. With juniper, artemisia, purshia and arctostaphylos 1250 Comment
  JEPS95135  Lupinus angustiflorus Vernon Oswald and Lowell Ahart 1997-7-28 8796 Siskiyou Bullseye Lake se of Medicine Lake; Bullseye Lake 2057 Comment
  UC865249  Lupinus arbustus A. A. Heller 1938-7-12 15260 Siskiyou border of a meadow e Deer Mountain; e of Deer Mountain 1402 Comment
  RSA60651  Lupinus aridus Dorothy Parker 1948-7-14 s.n. Siskiyou Scott Valley, 2 mi. from Etna. 671 Comment
  CAS-BOT-BC196695  Lupinus breweri var. breweri Elmer I. Applegate 1923-9-7 3967 Siskiyou Dry Lake Lookout Station, Doggett Ridge, south slope of the Siskiyou Mountains Comment
  UC1607589  Lupinus croceus Barbara Ertter 1990-7-14 9330 Siskiyou ca 4 airmi w Mt. Shasta City (Wagon Creek on e-side of Mt. Eddy); e side Mt. Eddy, Wagon Creek 1889 Comment
  UC796500  Lupinus croceus Roxana S. Ferris and Laura Lorraine Jun 12-16 1948 11810 Siskiyou at Mule Creek crossing of Scott Mountain Road 1524 Comment
  RSA94035  Lupinus croceus var. pilosellus R. C. Barneby 1954-5-17 11533 Siskiyou Scott Mountains, 5 miles above Callahan 1250 Comment
  UC157009  Lupinus klamathensis Geo. D. Butler 1910-5-15 1349 Siskiyou Greenhorn Mountain 1066 Comment
  RSA119548  Lupinus klamathensis C. P. Smith 1947-5-13 47279 Siskiyou Weed. Highway 99, south side. Comment
  SEINET10838198  Lupinus klamathensis Charles Piper Smith 1947-5-13 Smith 47279 Siskiyou Weed. Roadside. Hwy 99, s side. Comment
  CAS-BOT-BC8326  Lupinus lapidicola Amos Arthur Heller 1920-7-9 13422 Siskiyou Mt. Eddy. Near the little lake above the head of Wagon creek. 2438 Comment
  HSC31141  Lupinus latifolius subsp. latifolius J. O. Sawyer 1971-8-19 2457 Siskiyou 2012 Comment
  HSC77004  Lupinus latifolius subsp. viridifolius K. T. Stillman 1976-6-25 85 Siskiyou Marble Mtn. Wilderness Area, N side of Elk Valley. 1799 Comment
  RSA237932  Lupinus latifolius subsp. viridifolius Frederick W. Oettinger 1969-7-31 1120 Siskiyou The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, trail between English Lake and drift fence. 1829 Comment
  UC618893  Lupinus lepidus var. lobbii W. Bridge Cooke 1938-8-12 11463 Siskiyou Mount Shasta; Mount Shasta, Wagon Camp-Horse Camp Trail Comment
  UC904787  Lupinus lepidus var. lobbii W. Bridge Cooke 1949-8-26 25691 Siskiyou opposite Coquette Falls (e bank of Bolam Creek Canyon); Mount Shasta, Bolam Creek 2590 Comment
  JEPS109665  Lupinus lepidus var. sellulus Dean W. Taylor 2002-6-29 18208 Siskiyou ridge dividing Rayden Cabin and Big Carmen Lake, ca. 1 mile North of Scott Mountain Summit on Forest Road 40N08 1737 Comment
  UCD108597  Lupinus lepidus var. sellulus J. M. Tucker 1950-7-24 1961 Siskiyou outskirts of Dorris. Comment
  HSC81756  Lupinus leucophyllus Thomas W. Nelson, Jane P. Nelson 1980-7-19 6191 Siskiyou Along F.S. Rd. 40N17 between East Fork of Boulder Creek and Cement Creek. 1463 Comment
  UC144497  Lupinus luteolus A. A. Heller 1905-6-8 7990 Siskiyou Yreka Comment
  SFV5245  Lupinus luteolus B. C. Templeton 1957-6-22 s. n. Siskiyou North of Yreka. Comment
  HSC41639  Lupinus sellulus subsp. ursinus Jennifer Whipple 1976-9-2 1760 Siskiyou S face of Mt. Eddy draining into the N Fork of the Sacramento River 2439 Comment
  HSC68469  Luzula comosa Maralyn A. Renner 1980-6-26 1141 Siskiyou Flint Valley 1390 Comment
  HSC86563  Luzula comosa D. K. Imper Jul 1989 Siskiyou 8 mi. E of Somes Bar, Haypress Meadows Region 1372 Comment
  CAS-BOT-BC436699  Luzula comosa var. laxa Wm. Bridge Cooke 1939-7-7 13602 Siskiyou Mt. Shasta: between Bear Springs and Wagon Camp 1676 Comment
  JEPS25623  Luzula comosa var. laxa Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7257 Siskiyou Poker Flat 1536 Comment
  HSC22088  Luzula divaricata J. O. Sawyer 1968-7-9 428 Siskiyou W of Little Duck Lake 1936 Comment
  RSA238896  Luzula parviflora Frederick W. Oettinger 1968-9-7 752 Siskiyou Along inlet brook to Hancock Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  RSA605981  Luzula parviflora L. C. Wheeler 1934-6-18 2726 Siskiyou Cottonwood Creek, Siskiyou Mts. Mt. Diablo Mer. 1311 Comment
  JEPS74561  Luzula piperi W. J. Ferlatte 1966-8-5 349 Siskiyou Caribou Mountain Trinity Alps, Caribou Mtn 2468 Comment
  UCR131619  Lycium barbarum L. C. Wheeler 1934-11-4 3356 Siskiyou Marble Mtns, Scott Bar, Scott River 518 Comment
  HSC74925  Lythrum hyssopifolia J. P. Smith 1978-7-1 9960 Siskiyou Klamath National Forest, O'Neill Creek Campground, Klamath River 488 Comment
  CAS-BOT-BC342666  Madia citriodora John Thomas Howell 1934-7-4 12410 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley Comment
  CAS-BOT-BC342668  Madia citriodora John Thomas Howell 1934-7-4 12410 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley Comment
  POM30799  Madia exigua Geo D. Butler 1910-6-6 1536 Siskiyou Quartz Valley Comment
  UC1096810  Madia exigua Milo S. Baker 1957-6-16 13149 Siskiyou Scott Mt. 1767 Comment
  UC165972  Madia exigua Geo. D. Butler 1910-6-6 1536 Siskiyou Quartz Valley Comment
  UC61073  Madia exigua W. A. Setchell, C. C. Dobie 1902-7-14 Siskiyou Sisson Mount Shasta Comment
  CAS-BOT-BC343428  Madia gracilis Lewis S. Rose 1945-6-19 45140 Siskiyou Horse Creek & Klamath River 502 Comment
  CAS-BOT-BC343430  Madia gracilis Alice Eastwood 1912-7-17 1148 Siskiyou Sisson Comment
  UC1409495  Madia gracilis Frederick W. Oettinger 1969-8-18 1433 Siskiyou Horse Range Lake; Salmos Mountains, High Lake Basins, English Peak Marble Moun 1859 Comment
  CAS-BOT-BC343426  Madia gracilis Wm. F. Herrin 1919-6-16 s.n. Siskiyou Shasta Springs Comment
  RSA211521  Madia gracilis subsp. gracilis William J. Ferlatte 1966-8-3 248 Siskiyou Trinity Alps: Big Flat, wooded area near public camp 1524 Comment
  SEINET7040087  Madia minima A. G. Vestal 1963-6-1 s.n. Siskiyou Southeast of Dwinnell Reservoir [Lake Shastina]. Weed Quad. UTM Zone 10, 547726mE, 4593011mN. Comment
  UC61685  Madia sativa Geo. B. Grant September, 1902 5055 Siskiyou Mount Shasta Comment
  UC89419  Madia sativa subsp. dissitiflora T. S. Brandegee July 1887 Siskiyou Sisson's Mt. Shasta, Sisson's Comment
  POM149223  Mahonia aquifolium E. B. Copeland 1903-8-19 3810 Siskiyou Mt. Eddy. 1463 Comment
  RSA262384  Maianthemum racemosum subsp. amplexicaule J. M. Tucker, L. K. Mann 1963-7-7 3720 Siskiyou Ca. 1/4 mile north of Paradise Lake, east side of King s Castle, Marble Mountain Wilderness Area 1982 Comment
  UCD139117  Maianthemum stellatum J. M. Tucker 1963-7-5 3702 Siskiyou On Blake's Fork of South Russian Creek (a tributary of Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1615 Comment
  UC60891  Medicago lupulina W. A. Setchell, C. C. Dobie 1902-7-16 Siskiyou Sisson Mount Shasta Comment
  CAS-BOT-BC105076  Melica aristata R. C. Wenk 2008-7-24 918 Siskiyou SW side of Mount Shasta, McBride Springs. Growing in campground near pump at springs 1493 Comment
  POM114772  Melica aristata Geo D. Butler 1909-7-15 811 Siskiyou Russian Creek. 1829 Comment
  POM114773  Melica fugax Geo D. Butler 1910-4-30 1251 Siskiyou Yreka. Comment
  CHSC4362  Melica geyeri J. Potter 1966-5-14 Siskiyou 3 mi se of Callahan Old Oregon Stage Rd. Comment
  UCD87368  Melica harfordii A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3446 Siskiyou 11 miles north of Happy Camp, banks of Indian Creek. Comment
  RSA239102  Melica subulata Frederick W. Oettinger 1969-8-16 1394 Siskiyou Southwest of Wire Grass Meadow, above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  UCD88595  Melica subulata Rimo Bacigalupi; Mr. and Mrs. Van Deventer 1959-7-9 7262 Siskiyou Poker Flat. 1536 Comment
  CHSC88103  Mentha canadensis Jenny Marr 1993-7-1 113 Siskiyou Butte Valley Wildlife Area, +- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA45309  Mentha canadensis Dorothy Parker 1946-9-3 s.n. Siskiyou Plowman s Valley 1189 Comment
  UC1714374  Mentha canadensis W. Bridge Cooke 1940-6-20 15168 Siskiyou below Hornbrook (near the Pacific Highway); Klamath River Comment
  HSC63584  Mentha canadensis J. P. Smith, Steve Selva 1970-8-7 4542 Siskiyou Jct. I-5 and Stewart Creek Rd. Comment
  CHSC32900  Mentha spicata J. P. Smith; Steve Selva 1970-7-17 4439 Siskiyou Roadside and stream bank in farming area. 914 Comment
  UC163998  Mentha spicata Geo. D. Butler 1908-7-17 177 Siskiyou near Yreka; near Yreka Comment
  UC1980551  Mentzelia laevicaulis C. Rose Broome, James L. Reveal, Darin Reveal, Crissie Cagle 1978-8-6 2323 Siskiyou CA highway 96, 0.8 mi. W of Hamburg, at Mill Creek, opposite the highway from the Klamath River. Comment
  UC1190173  Mentzelia laevicaulis var. laevicaulis Ira L. Wiggins 1955-7-22 13454 Siskiyou 9.5 mi above Cecilville (Gravel bar in S Fork of Salmon River.); Salmon River Comment
  UC1408868 Image available Micranthes marshallii Frederick W. Oettinger 1969-7-16 651 Siskiyou Base of precipice south of of Abbott's Lake; High Lake Basins in vicinity of English Peak; Marble Mountain Wilderness Area Comment
  UC56720  Micranthes marshallii Harley P. Chandler 1901-6-25 1613 Siskiyou Upper Cottei Valley, near Haypress Mdw; W Siskiyou Co.) near Marbler Mountain Comment
  HSC46230  Micropus californicus var. californicus Jennifer Whipple 1978-6-5 2341 Siskiyou Weston Gulch in Scott Valley 854 Comment
  CAS-BOT-BC322660  Microseris laciniata W. R. Dudley 1899-8-13 s.n. Siskiyou Nabar near McCloud Comment
  RSA733882  Microseris laciniata subsp. detlingii K. L. Chambers 1998-6-16 6132 Siskiyou Copco Road, west of Iron Gate Reservoir, 1.2 miles north from the Klamath River bridge at Iron Gate Dam Comment
  POM35782  Microseris laciniata subsp. laciniata Geo D. Butler 1909-6-13 957 Siskiyou Oro Fino Meadows Comment
  POM53404  Microseris laciniata subsp. laciniata E. B. Copeland 1903-4-13 3818 Siskiyou Sisson 1067 Comment
  HSC46054  Microsteris gracilis Maralyn O'Meara 1974-5-25 421 Siskiyou On Rd. 8, ~4.7 mi. W of junction with Hwy. 3 1159 Comment
  HSC60801  Microsteris gracilis Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  JEPS120238  Mimulus Julie Kierstead Nelson with Brenna Montagne 2012-9-10 2012 -098 Siskiyou Coonrod Flat, east side of Mount Shasta Comment
  RSA237538  Mimulus breweri Frederick W. Oettinger 1969-8-13 1360 Siskiyou main camp site, English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC61895  Mimulus guttatus Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  JEPS8209  Mimulus layneae W. L. Jepson 1914-8-14 6169 Siskiyou Dunsmuir 670 Comment
  POM43116  Mimulus layneae Geo. D. Butler 1910-6-19 1585 Siskiyou Goosenest foothills. 1524 Comment
  UC54647  Mimulus layneae H. M. Hall and E. B. Babcock June, 1903 4038 Siskiyou below Dunsmuir; Sierra Nevada Mountains 609 Comment
  RSA434638  Mimulus lewisii M. B. Dunkle 1945-7-12 9204 Siskiyou Summit Trail. Marble Mountains. Klamath National Forest. Comment
  JEPS98799  Mimulus microphyllus Sue Pappalardo 1993-7-20 490 Siskiyou about 3 mi NE of Bear Mountain Lookout (Caribou wells, E of Forest Service highway 24 (40N24Y)); Shasta Trinity National Forest, McCloud Ranger District Comment
  UC1190172  Mimulus moniliformis Ira L. Wiggins 1955-7-22 13451 Siskiyou 9.5 mi above Cecilville; South Fork of Salmon River 1066 Comment
  HSC23587  Mimulus moschatus J. O. Sawyer 1970-7-4 2325 Siskiyou At Cedar Flat Cabin 1402 Comment
  HSC70516  Mimulus moschatus J. P. Smith, Steve Selva 1970-6-15 3921 Siskiyou 10 mi. NW of Forks of Salmon Comment
  SBBG30584  Mimulus moschatus D. Myrick 1968-6-26 2028 Siskiyou Coffee Crk; Trinity Alps 1463 Comment
  RSA14140  Mimulus moschatus Elmer I. Applegate 1923-9-6 3976 Siskiyou Doggett Creek, Klamath River. Comment
  RSA237573  Mimulus moschatus Frederick W. Oettinger 1968-8-11 478 Siskiyou Just below spring at Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  HSC96658  Mimulus nanus Thomas W. Nelson, Susan Erwin 2004-6-3 9220 Siskiyou Along Hwy. 3 at mile post 84.14, .3 mi. from Scott Mountain Pass 1552 Comment
  RSA12622  Mimulus nanus var. nanus Carl B. Wolf 1934-7-5 5963 Siskiyou 3.6 miles from Dry Lake Lookout on road to Horse Creek, Siskiyou Mountains 1982 Comment
  RSA165529  Mimulus nanus var. nanus Clare B. Hardham 1961-6-30 8030 Siskiyou Mud Springs. 1829 Comment
  RSA48208  Mimulus nanus var. nanus Roxana S. Ferris, Laura Lorraine 1948-6-12 11717 Siskiyou Schoolhouse Hill, Plowman's Valley (Noyes Valley), east fork of Scott River. Comment
  UC164372  Mimulus primuloides Geo. D. Butler 1910-7-9 1699 Siskiyou Shackleford Creek 1219 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
  JEPS83831  Mimulus primuloides subsp. linearifolius Wayne Roderick July 1976 Siskiyou along trail to Lily Pad Lake (vicinity of Cook and Green Pass); Sisiyou Mts. 1706 Comment
  UC922334  Mimulus tilingii var. corallinus Annie M. Alexander and Louise Kellogg 1949-7-22 5833 Siskiyou edge of small stream which arises from spring at lower end of Paradise Lake; Marble Mountains, Paradise Lake 2072 Comment
  CHSC106841  Minuartia nuttallii subsp. gregaria Barbara Ertter 1990-7-14 9308 Siskiyou E side Mt Eddy ca 4 airmiles due W of Mt Shasta City, at streamlet near end of FR41N53 ca 1 mi N of Morgan Meadows. 1676 Comment
  HSC69347  Minuartia nuttallii subsp. gregaria Maralyn A. Renner 1980-8-21 2592 Siskiyou SW of trail from Leroy Mine to Sunrise Basin near ridge 2287 Comment
  UC135706  Minuartia nuttallii subsp. gregaria Dr. E. B. Copeland 1903-8-18 3907 Siskiyou Mt. Eddy 2133 Comment
  HSC91384  Minuartia nuttallii subsp. gregaria Jennifer Whipple 1976-7-7 1320 Siskiyou Mount Eddy. 2530 Comment
  CAS-BOT-BC181107  Minuartia nuttallii var. gregaria Gilbert J. Muth 1969-8-10 1352 Siskiyou Red Mountain Ridge 2316 Comment
  JEPS51504  Minuartia pusilla Geo. D. Butler 1909-4-25 619 Siskiyou Quartz Valley; pine barrens Comment
  CAS-BOT-BC540350  Minuartia rubella Dana York 2012-7-20 3127 Siskiyou Siskiyou Mountains: Rogue River, Siskiyou National Forest, ca. 270 m W of Echo Lake (slopes above lake) 1800 Comment
  CHSC69823  Minuartia stolonifera Thomas W. Nelson; Jane P. Nelson 1979-5-26 4723 Siskiyou North Coast Ranges. Along State Route 3 3 miles north of Scott Mountain Pass at junction with road 40N03. Comment
  SEINET4853159  Minuartia stolonifera Unknown 1983-7-29 7500 Siskiyou Along west side of State Rt. 3, 2.4 mi N. of Scott Mountain Pass just S of junction with road 40N03. 1372 Comment
  UC101219  Mirabilis greenei Thos. Howell 1889-5-10 1386 Siskiyou Hornbrook Comment
  CAS-BOT-BC229605  Mirabilis greenei Elmer I. Applegate 1898-5-15 5142 Siskiyou Along Klamath River between Shovel Creek and Fall Creek 853 Comment
  SEINET3149779  Mirabilis greenei G. E. Pilz 1972-5-29 800 Siskiyou Collected 4 mi N of Yreka 700 Comment
  HSC4889  Mitella pentandra J. O. Sawyer 1968-6-18 242 Siskiyou Valley bottom of Blakes' Fork. 1707 Comment
  HSC61891  Mitella trifida Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  UCD125179  Monardella odoratissima Dr. Eckert 1934-8-2 s.n. Siskiyou exact location unknown. 1828 Comment
  UC2035946  Monardella odoratissima subsp. glauca C. Epling 1938-6-13 Siskiyou Near Weed Comment
  CAS-BOT-BC220364  Monardella odoratissima subsp. pallida Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  JEPS63424  Monardella odoratissima subsp. pallida W. L. Jepson 1894-8-4 59 f Siskiyou Mt. Shasta Comment
  UC1483447  Monardella odoratissima subsp. pallida J. Sawyer and J. Cole 1980-7-22 3988 Siskiyou Little Horse Peak, Klamath National Forest, Bray Quad. 1719 Comment
  RSA215625  Monardella odoratissima subsp. pallida Gilbert Muth 1969-8-6 1196 Siskiyou Boulder Park. 2530 Comment
  RSA68919  Monardella odoratissima subsp. pallida A. E. Culbertson 1943-8-1 38 Siskiyou Castle Lake. 14 miles s.w. of Mt. Shasta on n side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles at its headwaters to the west. 1657 Comment
  SEINET10582085  Monardella odoratissima subsp. pallida A. Graff 1993-7-24 Graff 350 Siskiyou Mt. Shasta National Forest, Mt. Shasta. Memorial Hwy. from the 2nd road to Sand Flats going down the Mt., on both sides of the road. Locally frequent at the edge of mixed conifer forest of Abies magnifica, A. concolor, Pinus ponderosa, Pseudotsuga menziesii, Calocedrus decurrens, with Ceanothus sp., Arctostaphylos uva-ursi and A. sp. Comment
  CAS-BOT-BC220232  Monardella sheltonii Clare B. Hardham 1965-8-1 13081 Siskiyou Near Happy Camp on Sulphur Springs Road Comment
  CAS-BOT-BC313729  Monardella siskiyouensis Clare Butterworth Hardham 1965-8-1 13080 Siskiyou Sulphur Springs Rd near Happy Camp Comment
  RSA256711  Montia chamissoi J. P. Smith 1974-5-25 7469 Siskiyou Along road 8, 4.7 mi. west of its junction with State Route 3. 1159 Comment
  POM215874  Montia fontana L. C. Wheeler 1935-4-13 3415 Siskiyou Siskiyou Mountains: Seiad Creek, Klamath River. 426 Comment
  HSC49917  Montia linearis Maralyn O'Meara 1974-5-25 410 Siskiyou On Rd. 8, ~4.7 mi. W of junction with Hwy. 3 1159 Comment
  JEPS43194  Montia parvifolia Milo S. Baker 1923-8-14 248 a Siskiyou Siskiyou National Forest, Smith River Division, Camp 6 Smith River Division; Siskiyou National Forest, , Camp 6 Comment
  RSA211319  Muhlenbergia andina William J. Ferlatte 1966-8-3 277 Siskiyou Josephine Lake Basin. Trinity Alps. 1829 Comment
  UC1153850  Muhlenbergia andina Beecher Crampton 1956-8-21 3837 Siskiyou banks of stream on lower slopes White Ridge; canyon of the South Fork of the Sacramento River 1371 Comment
  CAS-BOT-BC262672  Muhlenbergia asperifolia Geo. D. Butler 1910-8-21 1848 Siskiyou Shasta Valley Comment
  CAS-BOT-BC262679  Muhlenbergia asperifolia Roxana S. Ferris; Laura Lorraine 1941-8-11 10502 Siskiyou Grass Lake Station, on U. S. Highway 97 1554 Comment
  CAS-BOT-BC267051  Muhlenbergia filiformis L. P. Janeway 1983-8-16 543 Siskiyou Siskiyou Mountains: at Poker Flat, in upper portion of meadow 1524 Comment
  RSA239103  Muhlenbergia filiformis Frederick W. Oettinger 1969-9-1 1575 Siskiyou Sandy margin of Katherine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UCD86598  Muhlenbergia filiformis Beecher Crampton 1956-8-22 3859 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  CAS-BOT-BC267040  Muhlenbergia filiformis Copeland 1903-9-5 s.n. Siskiyou Igerna Comment
  HSC22179  Muhlenbergia montana J. O. Sawyer 1969-7-10 1304 Siskiyou SE facing slope above S Sugar Lake 2165 Comment
  RSA239107  Muhlenbergia montana Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1168 Siskiyou Near outlet of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  UC1265407  Muhlenbergia montana F. W. Oettinger 1969-8-16 1389 Siskiyou rocky slope sw Wiregrass Meadow (near Upper English Lake); Salmon Mountains 1676 Comment
  UC126064  Nama densa var. parviflora Katharine Brandegee July 1887 Siskiyou Edgewood Comment
  RSA68912  Narthecium californicum A. E. Culbertson 1943-8-4 46 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles southwest of Mt. Shasta on north side of a 6600 eastern spur of Trinity Mountains; 2000 above Sacramento River within 10 air miles of its headwaters to the west. 1657 Comment
  UC1540246  Navarretia capillaris Dean W. Taylor 1987-6-26 9077 Siskiyou 2 mi se from Medicine Lake (Paynes Springs); se from Medicine Lake, Paynes Springs 1996 Comment
  UC648274  Navarretia capillaris John Thomas Howell 1939-8-10 15258 Siskiyou Sky High Valley , Sky High Valley (Marble Mts.) Comment
  RSA238005  Navarretia capillaris Frederick W. Oettinger, R. F. Thorne 1969-8-8 1306 Siskiyou Near English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  JEPS19787  Navarretia intertexta Rimo Bacigalupi with S. Galen Smith 1957-6-26 5934 Siskiyou about 2.5 mi nw Weed (close to U.S. Highway 99) 1005 Comment
  CHSC57437  Navarretia intertexta subsp. intertexta L. P. Janeway 1984-6-21 850 Siskiyou At Ti Bar Flat, on east side of Klamath River. Along dirt road. 213 Comment
  UC1112256  Navarretia leucocephala subsp. leucocephala R. C. Bacigalupi with S. Galen Smith 1957-6-27 5979 Siskiyou 4.0 mi s Dorris; Butte Valley 1280 Comment
  UCD48626  Navarretia pubescens Robert E. Preston 1995-6-18 879 Siskiyou CA: Siskiyou Co.; ca. 3 mi ese of Hornbrook, in oak woodland adjacent to Ager Rd; (Copco 15' quad). 701 Comment
  UC164096  Navarretia tagetina Geo. D. Butler 1910-7-20 1730 Siskiyou Goosenest foothills Goosenest 1524 Comment
  POM216006  Nemophila parviflora var. austiniae Louis C. Wheeler 1935-5-5 3462 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  RSA495513  Nemophila parviflora var. parviflora Elaine Joyal, D. Mehlman 1988-6-25 1273 Siskiyou Happy Camp - Takilma road at turn-off to Bolan Lake 1524 Comment
  HSC93079  Nemophila pedunculata Jennifer Whipple 1976-7-2 1278 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC164107  Nemophila pedunculata Geo. D. Butler 1910-5-7 1302 Siskiyou around Yreka; around Yreka Comment
  CAS-BOT-BC60596  Noccaea fendleri subsp. glauca R. C. Barneby 1954-5-16 11532 Siskiyou 6 miles southwest of Yreka. 975 Comment
  CHSC71284  Nothocalais troximoides Vernon H. Oswald; Lowell Ahart 1998-6-11 9199 Siskiyou Dry Lake on the south side of Tennant Rd. ca. 9 air mi east of Grass Lake, ca. 22 air mi northeast of Weed. In meadow bordering the lake. 1402 Comment
  HSC27252  Nothocalais troximoides J. P. Smith, J. O. Sawyer 1972-5-7 5284 Siskiyou 2.3 mi. W of Lava Beds National Monument, on road to Mtn. Dome. 1220 Comment
  JEPS11224  Nothochelone nemorosa Geo. D. Butler 1908-8-6 429 Siskiyou trail beyond Whiskey Camp (Independence Creek); Independence Creek 1676 Comment
  UC595100  Nothochelone nemorosa David D. Keck 1938-8-6 4821 Siskiyou Poker Flat, on n slope just se of summit, Siskiyou Mountains Poker Flat; Siskiyou Mountains, Poker Flat 1402 Comment
  HSC59711  Notholithocarpus densiflorus var. echinoides Clark L. Miller 1978-10-21 79 Siskiyou French Camp Rd. off Hwy. 199, E of Hwy. 101 549 Comment
  UC1409399  Nuphar lutea subsp. polysepala Frederick W. Oettinger 1969-8-1 1139 Siskiyou near inlet English Lake, the High Lake Basins in vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1752 Comment
  UC1733725  Olsynium douglasii var. douglasii Kay H. Beach, Frank Gould 1940-5-15 628 Siskiyou Bull Meadows Comment
  SEINET13694636 Image available Onopordum tauricum T. C. Fuller 1960-4-26 s.n. Siskiyou Dorris Comment
  JEPS107393  Opuntia fragilis Lowell Ahart, John Dittes 2005-6-10 12101 Siskiyou Hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS123404  Oreostemma alpigenum var. andersonii Julie Kierstead Nelson with Don Lepley, Rhonda Posey 2015-8-13 2015 -123 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. Comment
  UCD77890  Orobanche fasciculata Robert E. Preston 2001-7-21 1740 Siskiyou Klamath National Forest, Rainbow Mountain. 2255 Comment
  CAS-BOT-BC500188  Orobanche fasciculata R. E. Frenkel 1963-7-13 253 Siskiyou On Everitt Memorial Highway, 1.0 mi N of McCloud River RR crossing, near Mt. Shasta 1219 Comment
  CAS-BOT-BC458095  Orthilia secunda Alice Eastwood 1912-8-30 2044 Siskiyou Mt. Eddy Comment
  RSA0083191  Orthilia secunda M. S. Baker 131 Siskiyou Hillside S.W. of Medicine Lake. Comment
  HSC58956  Orthocarpus cuspidatus subsp. copelandii Gilbert Muth 1975-7-31 4035 Siskiyou Near Lily Pad Lake, close to the town of Seiad Valley 1585 Comment
  HSC95774  Orthocarpus cuspidatus subsp. copelandii R. J. Mastrogiuseppe, J. D. Mastrogiuseppe 1974-9-2 170 Siskiyou W slope of ridge of Red Rock Mtn. 2134 Comment
  CAS-BOT-BC94476  Orthocarpus cuspidatus subsp. copelandii R. C. Wenk 2005-7-19 345 Siskiyou border between Siskiyou and Trinity Counties, National Forest Road 17, parking lot where Pacific Crest Trail crosses 2090 Comment
  RSA237572  Orthocarpus cuspidatus subsp. copelandii Frederick W. Oettinger 1967-8-10 245 -a Siskiyou 1/8 mile southeast of Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  RSA99683  Orthocarpus lacerus W. A. Weber, L. S. Rose 1953-5-22 8459 Siskiyou 3 miles north of Weed. 1128 Comment
  JEPS25627  Osmorhiza berteroi Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7264 Siskiyou Poker Flat 1536 Comment
  SBBG25956  Osmorhiza berteroi D. Myrick 1966-8-10 1530 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  UCR101291  Oxalis trilliifolia L. C. Wheeler 1959-7-25 7593 Siskiyou Marble Mountains, Camp Three, Rogers Creek 329 Comment
  CAS-BOT-BC413216  Oxyria digyna Wm. Bridge Cooke 1938-9-8 11651 Siskiyou Mount Shasta. North side of Red Butte Comment
  CAS-BOT-BC413218  Oxyria digyna Annie M. Alexander; Louise Kellogg 1949-7-28 5888 Siskiyou Sky High Valley, Marble Mountains 1767 Comment
  HSC92939  Oxyria digyna Jennifer Whipple 1977-7-20 1995 Siskiyou N slopes of Mount Eddy 2500 Comment
  UC1234603  Packera cana Peter H. Raven 1962-5-30 17901 Siskiyou U.S. Highway 97 8.3 mi n Weed Comment
  SBBG2225  Paeonia brownii H. and M. Dearing 1938-6-29 2191 Siskiyou Mt Shasta 1828 Comment
  UC1234786  Paeonia brownii Peter H. Raven 1962-5-30 17993 Siskiyou US Hwy 97 8.3 mi n Weed Comment
  CDA3571  Papaver rhoeas T. C. Fuller 1958-6-19 1809 Siskiyou Gazelle. 0 Comment
  CAS-BOT-BC422855  Papaver rhoeas W. R. Ernst 1960-6-14 741 Siskiyou About 1/4 mi. north of Gazelle on U. S. Highway 99. Comment
  RSA150581  Papaver rhoeas Lee W. Lenz 1961-6-21 24356 Siskiyou Just north of Gazelle along highway 915 Comment
  UCD107446  Parnassia fimbriata J. M. Tucker; L. K. Mann, and S. L. Holloway 1963-8-18 3745 Siskiyou Upper Canyon Creek, ca. 1/2 mile northeast of the Marble Valley Guard Station, Marble Mountain Wilderness Area. 1920 Comment
  CHSC78533  Parnassia palustris Vernon H. Oswald 2000-8-28 9956 Siskiyou Rock Fence Lake Road (40N18) near the junction with Kangaroo Lake Road. 1659 Comment
  JEPS128828  Parnassia palustris Julie Kierstead Nelson with Martin Lenz 2017-10-3 2017 -056 Siskiyou Eastern Klamath Ranges, The Eddys; Parks Creek Road (County Rd. 17). Comment
  CAS-BOT-BC175614  Parnassia palustris Wm. Bridge Cooke 1938-9-8 11671 Siskiyou Squaw Creek, Heather Meadows Comment
  HSC19160  Parnassia palustris J. O. Sawyer 1969-8-17 1973 Siskiyou West of Little Duck Lake. 2073 Comment
  HSC2390  Parnassia palustris W. J. Ferlatte 1966-8-19 434 Siskiyou Trinity Alps, along Kidd Creek trail. 1829 Comment
  CAS-BOT-BC202844  Paxistima myrsinites H. A. Thomas; J. H. Thomas 1954-7-23 4466 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Vicinity of Blind Horse Creek 1036 Comment
  UC163986  Paxistima myrsinites Geo. D. Butler 1910-4-22 1219 Siskiyou Kidder Creek Comment
  JEPS128456  Pectiantia pentandra Julie Kierstead Nelson with Martin Lenz 2015-6-18 2015 -057 Siskiyou Headwaters of West Fork Parks Creek, 2 miles NNE of China Mountain; 7 miles W of town of Weed. Comment
  RSA0025075  Pectocarya penicillata L. C. Wheeler 1934-6-7 2654 Siskiyou Siskiyou Mountains: Hungry Creek Lookout. 1502 Comment
  JEPS74437  Pedicularis attollens W. J. Ferlatte 1966-8-17 396 Siskiyou Caribou Basin; Trinity Alps 1981 Comment
  SEINET10783891 Image available Pedicularis attollens Edwin B. Copel 1903-8-18 Copeland 3901 Siskiyou Mt. Eddy. Comment
  LA209462  Pedicularis densiflora Joseph Andorfer Ewan; 1939-6-30 13558 Siskiyou Mount Shasta, Long the MacBride Springs Road Comment
  RSA211398  Pedicularis flavida William J. Ferlatte 1966-8-17 387 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  UC1483481  Pedicularis howellii Maralyn A. Renner 1980-7-28 2183 Siskiyou e spur of Kangaroo Mountain; Klamath National Forest, Kangaroo Mountain 1889 Comment
  RSA749130  Pedicularis racemosa James R. Shevock, David Toren 2000-9-1 20100 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
  UCD123294  Pedicularis racemosa J. M. Tucker; D. V. Hemphill 1974-7-26 4289 Siskiyou Let 'Er Buck Meadows, ca. 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  RSA211402  Pedicularis racemosa William J. Ferlatte 1966-8-19 443 Siskiyou Kidd Creek Trail. Trinity Alps. 1890 Comment
  HSC67801  Pedicularis semibarbata J. O. Sawyer, J. Cole 1980-7-22 3987 Siskiyou Little Horse Peak 1720 Comment
  UC775207  Pellaea brachyptera W. H. Wagner Jr. 1949-4-26 4608 Siskiyou Memorial Hwy (dirt road) from Shasta Springs to Sand Flats (w side of base of Mt Shasta); Mt Shasta Comment
  HSC72948  Pellaea brachyptera M. S. Taylor, Overton 1980-7-8 3090 Siskiyou N side of 40N43 2.4 mi. W of its jct with 40N26, at W end of Lake Siskyou W of Mt. Shasta City 1341 Comment
  UC1408849  Pellaea brachyptera Frederick W. Oettinger 1968-8-16 538 Siskiyou due n of Hancock Lake (near summit of Little Medicine Mt); Salmon Mts, High Lake Basins, English Peak vicinity, Marble 2087 Comment
  HSC44951  Pellaea breweri J. O. Sawyer 1978-6-16 3214 Siskiyou Marble Mtn. Wilderness Area slopes 1829 Comment
  HSC69024  Penstemon anguineus Maralyn A. Renner 1980-7-28 2193 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  JEPS7208  Penstemon anguineus Geo. D. Butler 1908-8-4 432 Siskiyou head of Shackleford Creek 1676 Comment
  JEPS29111  Penstemon anguineus Lauramay T. Dempster 1961-7-1 1837 Siskiyou just n Horse Creek Drainage Basin (along ridge from Condry Peak to White Mountain); summit ridge Siskiyou Mts., n of Horse Creek drainage Basin 1889 Comment
  POM43273  Penstemon anguineus Geo. D. Butler 1908-8-4 432 Siskiyou Shackleford Creek. 1829 Comment
  CAS-BOT-BC265373  Penstemon davidsonii var. davidsonii W. R. Dudley 1899-8-24 s.n. Siskiyou Top of Craggy Peak Comment
  CAS-BOT-BC265377  Penstemon davidsonii var. davidsonii Robert T. Clausen July 27 4977 Siskiyou W fork of Mountainhouse Creek, 3 miles NNE of summit of Mount Shasta 2438 Comment
  CHSC102568  Penstemon davidsonii var. davidsonii L. P. Janeway 2009-8-4 9903 Siskiyou High Cascade Range. Mt. Shasta, north slope; 3.7 air km south-southwest of Northgate Trailhead. 2783 Comment
  NY590179  Penstemon davidsonii var. davidsonii M. S. Baker 06 1893 s.n. Siskiyou Medicine Lakes Comment
  HSC20981  Penstemon deustus R. C. Wunner 1965-6-7 115 Siskiyou Lava Beds National Monument, 0.2 mi. from Indian Well Camp Ground 1387 Comment
  RSA412527  Penstemon deustus Louis C. Wheeler 1934-6-9 2668 Siskiyou Dutch Creek off Klamath River. Siskiyou Mtns. 610 Comment
  POM42980  Penstemon deustus subsp. deustus Geo. D. Butler 1910-5-25 1404 Siskiyou Near Yreka. Comment
  RSA739774  Penstemon gracilentus L. P. Janeway, B. Castro 2007-7-28 9129 Siskiyou High Cascade Range, Medicine Lake Highlands, just N of the N edge of Medicine Lake Glass Flow. 2109 Comment
  SEINET12271087  Penstemon gracilentus M. Ownbey, Meyer, F. G. 1940-1 2195 Siskiyou near timber line on E side of Mt. Shasta Comment
  UCR47887  Penstemon heterodoxus 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
  UCD124274  Penstemon heterodoxus var. shastensis Jack Major 1961-7-14 639 Siskiyou Wagon Camp Meadow, Mount Shasta. 1737 Comment
  UCR93376  Penstemon humilis Kathy Harper, Dane Karr 1994-6-16 s.n. Siskiyou Modoc National Forest; Forest Route 49 (Lava Beds/ Medicine Lake Rd.) within 1 mi. of southern boundary of Lava Beds National Monument 1555 Comment
  HSC20972  Penstemon humilis subsp. humilis R. C. Wunner 1965-6-10 143 Siskiyou Lava Beds National Monument, Caldwell Butte above Caldwell Minor 1463 Comment
  JEPS116584  Penstemon laetus Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -016 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N15 Weed (unburned area witin Hotlum Fire perimeter burned Feb 2006; 4 mi NE of town of); Mt. Shasta 1219 Comment
  HSC97132  Penstemon laetus subsp. sagittatus L. Ahart, John Dittes 2005-6-9 12029 Siskiyou Hill, S of rock fence, 100 yds. NE of where cattle water in Shasta River, 3/5 mi. S of Hwy. 99/97 Cutoff, 2.5 mi. ESE of Grenada 775 Comment
  JEPS11378  Penstemon laetus var. sagittatus W. L. Jepson 1940-6-30 20066 Siskiyou 6 mi e McCloud (Fowlers Camp, Forest Service Campground on McCloud River); McCloud River, e of McCloud, Fowlers Camp 944 Comment
  JEPS44097  Penstemon laetus var. sagittatus W. B. and V. G. Cooke 1965-7-12 35188 Siskiyou Bolam Road , Bolam Road (Mt. Shasta) 1706 Comment
  NY604561  Penstemon laetus var. sagittatus A. A. Heller 1905-6-13 8019 Siskiyou Shasta Springs. Comment
  NY604565  Penstemon laetus var. sagittatus C. L. Hitchcock 1939-7-6 5210 Siskiyou On Takilma-Happy Camp road 1676.4 Comment
  UC61196  Penstemon laetus var. sagittatus W. A. Setchell, C. C. Dobie 1902-7-21 Siskiyou Sisson 18th Crossing , Sisson 18th Crossing (Mount Shasta) Comment
  NY604552  Penstemon laetus var. sagittatus K. A. Vincent 1987-6-28 4439 Siskiyou Cascade Range, Mount Shasta; along east side of US 97, ca. 4.4 miles north-northeast of jct. I-5 Business Loop in Weed. 1127.8 Comment
  RSA165524  Penstemon laetus var. sagittatus Clare B. Hardham 1961-6-30 8120 Siskiyou Near White Mt. Comment
  SD42407  Penstemon neotericus Carl B. Wolf 1941-7-26 11078 Siskiyou SW. end Little Shasta Valley, 12 mi. NE. Weed on U.S. Highway #97 at junction with rd to Montague 914 Comment
  HSC29276  Penstemon newberryi Frederick W. Oettinger 1968-9-1 655 Siskiyou Marble Mtn. Wilderness Area, cliffs E of Abbott's Lake 1799 Comment
  HSC86631  Penstemon newberryi D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta, S side of Red Butte 2134 Comment
  HSC267  Penstemon newberryi subsp. berryi William J. Ferlatte 1967-8-21 1068 Siskiyou Sawtooth Ridge between Caribou Basin and Little S Fork Lake 2287 Comment
  HSC91153  Penstemon newberryi subsp. berryi Jennifer Whipple 1977-7-22 2042 Siskiyou Ridgecrest between Dobkins Lake drainage and Dale Creek drainage 2348 Comment
  RSA238741  Penstemon newberryi subsp. berryi Frederick W. Oettinger, Robert F. Thorne 1969-8-5 1219 Siskiyou North side of Crapo View Gap along English Lake trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. Comment
  JEPS5713  Penstemon newberryi var. berryi W. L. Jepson 1907-7-11 2881 Siskiyou 12 mi S of Preston Peak (on divide between Onion Patch (E slope) and South Fork Smith River (W slope)); Klamath Range (= Siskiyou Mts., western part) Comment
  UC313697  Penstemon newberryi var. newberryi David D. Keck 1927-8-16 304 Siskiyou 4 mi E of Mt. Shasta City (Sisson) (on W flank of Mount Shasta); Mount Shasta 1609 Comment
  UC887197  Penstemon newberryi var. newberryi Alice Eastwood 1912-7-19 1230 Siskiyou Mount Shasta Comment
  CHSC99700  Penstemon parvulus L. P. Janeway 2008-7-24 9488 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. Open ridgetop. 2050 Comment
  RSA23282  Penstemon parvulus Marion Ownbey, Ruth P. Ownbey 1938-7-19 1749 Siskiyou 2.5 mi. NE of Dry Lake Lookout, summit of Siskiyou Mountains. Comment
  UC886815  Penstemon parvulus John Thomas Howell 1939-8-2 14899 Siskiyou Spirit Lake , Spirit Lake (Marble Mts.) 1828 Comment
  HSC19131  Penstemon parvulus J. O. Sawyer 1969-7-2 1036 Siskiyou NE facing slope near summit above Lipstick Lake 2226 Comment
  HSC29301  Penstemon parvulus Frederick W. Oettinger 1968-8-16 539 Siskiyou Marble Mtn. Wilderness Area, W side of Red Hill near Hancock Lake 2058 Comment
  JEPS57172  Penstemon procerus subsp. formosus L. R. Heckard 1967-8-13 1703 Siskiyou summit region of Mount Eddy Mount Eddy 2743 Comment
  HSC19135  Penstemon procerus var. brachyanthus J. O. Sawyer 1969-7-2 1005 Siskiyou E of Twin Lakes 2195 Comment
  NY639268  Penstemon procerus var. formosus A. A. Heller 1920-7-9 13427 Siskiyou Near the summit of Mt. Eddy Comment
  CHSC67610  Penstemon roezlii J. D. Jokerst 1992-7-30 3410 Siskiyou Top of divide between Trinity River, N of road. (Interstate 5?). Comment
  HSC101872  Penstemon rupicola R. D. Whittlesey 2013-6-4 2 Siskiyou Near Castella: 3.1 mi. north from State Park entrance up Castle Dome Trail. 1187 Comment
  HSC61156  Penstemon rupicola Al Hobart Siskiyou El Capitan Comment
  RSA233702  Penstemon shastensis Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38971 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows. 2195 Comment
  RSA401885  Penstemon speciosus E. E. Stanford 1930-6-15 1591 Siskiyou Near Shasta City. 1098 Comment
  HSC75652  Penstemon speciosus J. O. Sawyer, R. J. Cole 1980-7-22 3868 Siskiyou 0.5 mi. S of Lava Camp 1829 Comment
  RSA14390  Perideridia howellii Elmer I. Applegate 1923-8-21 3915 Siskiyou Willow Creek, south of Lower Klamath Marsh Comment
  LA32473  Perideridia parishii subsp. latifolia Wm. Bridge Cooke; 1939-7-21 13731 Siskiyou Mount Shasta, Wagon Camp 1737 Comment
  RSA459100  Perideridia parishii subsp. latifolia M. B. Dunkle 9348 Siskiyou [Unspecified] 2439 Comment
  CAS-BOT-BC413492  Persicaria amphibia Elmer I. Applegate 1923-8-19 3892 Siskiyou Medicine Lake Comment
  HSC17544  Persicaria amphibia C. B. Wolf 1927-8-26 1023 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  HSC13648  Phacelia bicolor R. C. Wunner 1965-8-27 489 Siskiyou California Lava Beds National Monument, top of petroglyphs Comment
  JEPS81095  Phacelia bolanderi D. H. Norris 1970-5-23 12236 Siskiyou Ishi Pishi Bridge Klamath River (near Somes Bar) Comment
  HSC30735  Phacelia corymbosa Glenn McGourty 1974-5-25 68 Siskiyou On Rd. 8, 0.9 mi. from jct. with Hwy. 3 976 Comment
  UC1228342  Phacelia hastata L. R. Heckard 1956-8-7 830 Siskiyou near Dear Mt. Lodge (w flank of mt.); Deer Mt. 1432 Comment
  UC1228343  Phacelia heterophylla subsp. virgata L. R. Heckard 1956-8-7 831 Siskiyou along US Hwy 97 Deer Mt., Deer Mt. Lodge (w flank of mt.) 1432 Comment
  HSC67637  Phacelia heterophylla subsp. virgata J. P. Smith, Steve Selva 1970-6-16 4044 Siskiyou Etna 897 Comment
  JEPS23866  Phacelia leonis Rimo Bacigalupi with Mr. and Mrs. Van Deventer and Don Liles 1959-7-10 7296 Siskiyou about 4 mi nne of Preston Peak (just e of Del Norte County line, watershed of Indian Creek, Siskiyou Mountains, Twin Valley); Siskiyou Mountains, Twin Valley 1493 Comment
  HSC13674  Phacelia linearis R. C. Wunner 1965-6-6 61 Siskiyou California Lava Beds National Monument, Indian Well Campground 1433 Comment
  SEINET3158194  Phacelia magellanica f. virgata G. D. Butler 1910-5-7 1300 Siskiyou Dry hills near Yreka Comment
  UC1017763  Phacelia mutabilis C. L. Hitchcock 1954-6-22 20227 Siskiyou 1 mi w Somes Bar (on road to Camp Three) Comment
  HSC78199  Phacelia mutabilis L. P. Janeway 1983-8-28 644 Siskiyou At Poker Flat, dry NE edge of lower portion of meadow. 1524 Comment
  RSA755540  Phacelia pringlei Barbara Ertter, Julie Kierstead, Jim Nelson 1990-7-15 9371 Siskiyou ca 1 mile east of Toad Lake at head of Middle Fork Sacramento River, ca. 8 air miles west of Mount Shasta City. 1982 Comment
  UC1023833  Phacelia pringlei Douglas Barbe 1955-7-26 276 Siskiyou spring on n slope Klamath Mountains, Scott Mtn. 1828 Comment
  UC1950202  Phacelia pringlei Barbara Ertter 1990-7-14 9338 Siskiyou Wagon Creek on E side of Mt Eddy, ca 4 airmiles W of Mt. Shasta City; several forks join before steep drop Comment
  CAS-BOT-BC265816  Phalaris arundinacea Calvin McMillan; Malcom A. Nobs 1949-6-17 802 Siskiyou Grass Lake, Highway 97 Comment
  UC114914  Philadelphus lewisii Brandegee July 1887 Siskiyou Ager Comment
  UC922623  Philadelphus lewisii Annie M. Alexander and Louise Kellogg 1948-9-9 5613 Siskiyou on trail to Taylor Lake Siskiyou Mountains Comment
  HSC96868  Phleum alpinum Gordon Leppig 1998-8-13 999 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  HSC30427  Phlox austromontana Frederick W. Oettinger 1969-7-10 964 Siskiyou Marble Mtn. Wilderness Area, S of Upper English Lake 1921 Comment
  UC1483548  Phlox diffusa John Palmer 1980-7-24 652 Siskiyou Dillon Divide Klamath National Forest, Dillon Mtn. Quad. 1706 Comment
  UCD77914  Phlox diffusa Robert E. Preston 2002-6-20 1841 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope. 1946 Comment
  POM65609  Phlox diffusa subsp. diffusa E. B. Copeland 1903-7-17 3511 Siskiyou Mt. Shasta 2317 Comment
  RSA120867  Phlox diffusa subsp. diffusa Wagnon 1957-8-11 1703 Siskiyou East slope of Mt. Shasta in meadow ca. 1 mile west of Military Pass Road along road to Brewer Cr. Comment
  RSA183673  Phlox diffusa subsp. diffusa Gilbert Muth 1965-8-6 184 Siskiyou Marble Mountains; backside of Black Mountain Comment
  JEPS104868  Phlox hirsuta Dean W. Taylor 1996-5-29 15637 Siskiyou Highway 3 about 4 miles east of southern edge Yreka; Soap Creek Ridge 822 Comment
  UCSB21823  Phlox hoodii Keefe, Joseph 1967-7-11 Siskiyou 0.5 mile on trail east of Cook and Green Pass; north of Seiad Valley 1371 Comment
  CDA40279  Phlox speciosa subsp. nitida R. P. Allen 1952-5-15 s.n. Siskiyou Dunsmuir. 0 Comment
  RSA469941  Phlox speciosa subsp. nitida J. P. Smith 1973-5-5 6546 Siskiyou Scott Bar along the Scott River. Comment
  POM209395  Phlox speciosa subsp. occidentalis L. C. Wheeler 1935-4-17 3428 Siskiyou Soap Creek, Siskiyou Mountains 1067 Comment
  CAS-BOT-BC60683  Phoenicaulis cheiranthoides Marion Ownbey; Ruth P. Ownbey 1938-7-19 1752 Siskiyou Summit of the Siskiyou Mountains, 2.5 miles northwest of Dry Lake Lookout. Comment
  UCSB27387  Phyllodoce empetriformis Wilken, Dieter 1969-7-26 Siskiyou Panther Meadows, near the summit of Mt. Shasta Ski Bowl Road, south slope of Mt. Shasta 2895 Comment
  CAS-BOT-BC56488  Phyllodoce empetriformis Gilbert Muth 1965-8-8 s.n. Siskiyou Near summit of Marble Rim 1981 Comment
  SEINET2031085 Image available Phyllodoce empetriformis Joseph P. Tracy 1935-1 14406 Siskiyou Rock Lake; on ridge between Salmon and New Rivers; at extreme head of West Fork of Knownothing Creek. In a rocky snow cirque. 1890 Comment
  UCR182951  Physalis longifolia T. C. Fuller 1966-10-6 15246 Siskiyou Clement Ranch, 5 miles north of Montague Comment
  CAS-BOT-BC60774  Physaria occidentalis W. R. Dudley 1899-8-26 s.n. Siskiyou Summit of Mount Eddy. Comment
  UC144392  Physocarpus capitatus A. A. Heller 1905-6-17 8057 Siskiyou near Sisson Comment
  UCR131594  Physocarpus capitatus L. C. Wheeler 1934-7-5 2877 Siskiyou Siskiyou Mtns., Beaver Creek at Deer Creek 976 Comment
  UCSB24685  Physocarpus capitatus Favero, R. 1968-5-16 Siskiyou 13 miles from Somes Bar bridge toward Happy Camp, Salmon Mountains 487 Comment
  UC1200606  Picea breweriana Peter Kamb 1949-8-24 1477 Siskiyou n Happy Camp (s ridge of mt.); Little Grayback Mt. Comment
  CAS-BOT-BC78156  Picea breweriana J. M. Tucker 1963-7-5 3698 Siskiyou Blake's Fork of South Russian Creek (a tributary of Salmon River), ca. 7 miles (airline) east of Sawyer's Bar 1615 Comment
  CAS-BOT-BC73437  Picea engelmannii Dorothy Parker 1962-9-19 s.n. Siskiyou Siskiyou Mountains - Horse Range Creek, Salmon Mountains. 1676 Comment
  NY30144  Picea engelmannii L. E. Berriman 1940-8-30 s.n. 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
  SD126128  Pinus albicaulis Walter M. Plumb 1972-7-16 Siskiyou northeastern slope of Mount Eddy 2440 Comment
  CAS-BOT-BC73391  Pinus albicaulis Gilbert Muth 1966-8-6 177 Siskiyou Marble Mts. - ridges of the Marble rim. 2133 Comment
  CAS-BOT-BC73308  Pinus balfouriana J. M. Tucker; L. K. Mann; S. L. Holloway 1963-8-18 3769 Siskiyou Marble Mountain Wilderness Area - southwestern ridge of Black Marble Mountain. 2133 Comment
  CAS-BOT-BC73310  Pinus balfouriana Alice Eastwood 1912-8-30 s.n. Siskiyou Mount Eddy Comment
  CAS-BOT-BC78408  Pinus balfouriana W. R. Dudley 1899-8-24 s.n. Siskiyou Top of Craggy Pk. Comment
  UC688866  Pinus balfouriana William E. Ferguson 1942-8-28 Siskiyou Lyon Lake Etna Quadrangle (sw quarter of quadrangle) 2133 Comment
  CAS-BOT-BC78410  Pinus balfouriana W. R. Dudley 1901-8-22 s.n. Siskiyou Foxtail Ridge Comment
  CAS-BOT-BC78362  Pinus contorta W. R. Dudley 1899-8-1 s.n. Siskiyou At Glazier Comment
  HSC31498  Pinus contorta var. murrayana Steve Selva, Roger Jensen 1974-8-16 20 Siskiyou N shore of Sugar Lake. Comment
  CAS-BOT-BC73180  Pinus jeffreyi Ranger K. Fox 1939-8-22 13876 Siskiyou Mount Shasta, along the Everett Memorial Highway. 1981 Comment
  CAS-BOT-BC78698  Pinus jeffreyi Doris K. Kildale 1928-8-20 6610 Siskiyou summit of divide at Lily Pad Lake - trail to Marble Mt. 2133 Comment
  SEINET3873292  Pinus jeffreyi Alv Dan Youngberg 1964-7-25 90 Siskiyou At West Branch Guard Station. Humbolt Meridian.; 0 671 Comment
  HSC27950  Pinus lambertiana Carl W. Mize 1972-9-23 118 Siskiyou End of road 945 Comment
  HSC29669  Pinus lambertiana Frederick W. Oettinger 1969-8-24 1538 Siskiyou Marble Mtn. Wilderness Area, 0.1 mi. N of English Lake 1768 Comment
  RSA624393  Pinus lambertiana L. C. Wheeler 1952-9-17 6937 Siskiyou Unspecified. Comment
  HSC67696  Pinus monticola John Palmer 1980-7-24 579 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC69222  Pinus monticola Maralyn A. Renner 1980-8-31 2622 Siskiyou Twin Valley. 1494 Comment
  JEPS88723  Pinus monticola Gilbert Muth 1965-8-8 193 Siskiyou trail backside Black Mountain; Marble Mt. Wilderness Area, Black Mountain Comment
  HSC32596  Pinus ponderosa Steven Lagos 1974-5-26 87 Siskiyou Duck Lake Creek drainage, Bulk Collection # 59 1220 Comment
  RSA624392  Pinus ponderosa L. C. Wheeler 1952-9-17 6936 Siskiyou Unspecified. Comment
  SEINET10966122  Pinus ponderosa Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6982 Siskiyou Western Yellow Pine, Libocedrus, Douglas Fir forest, 6 mi SW of Callahan. 1524 Comment
  POM72946  Plagiobothrys bracteatus Geo. D. Butler 1910-5-29 1424 Siskiyou Near Yreka. Comment
  POM72154  Plagiobothrys greenei Geo. D. Butler 1909-4-30 668 Siskiyou Yreka Comment
  RSA610638  Plagiobothrys greenei L. C. Wheeler 1935-5-18 3496 Siskiyou Siskiyou Mountains; Yreka Creek (Mt. Diablo Mer.) 854 Comment
  CHSC71289  Plagiobothrys tenellus Vernon H. Oswald; Lowell Ahart 1998-6-11 9177 Siskiyou Shasta NF plantation on the west side of Hwy. 97 2.2 mi northeast of Lake Shastina-Big Springs Rd., northeast of Weed. 1066 Comment
  RSA105308  Plantago eriopoda Milo S. Baker 1955-7-26 13079 Siskiyou Hwy 99, 4 mi S of Gazelle. 915 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
  HSC67609  Plantago lanceolata J. P. Smith, Steve Selva 1970-7-16 4392 Siskiyou Along Klamath River, 2 mi. W of Seiad Creek 518 Comment
  RSA240061  Plantago major Frederick W. Oettinger 1969-8-9 1312 Siskiyou Above Trail near Young's Cabin on North Fork of Salmon River. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  HSC61845  Platanthera dilatata var. leucostachys Ruby Van Deventer 1938-7-9 Siskiyou Poker Flat 1585 Comment
  POM208201  Platanthera leucostachys Louis C. Wheeler 1934-6-18 2725 Siskiyou Cottonwood Creek, Siskiyou Mts. Mt. Diablo Mer. 1311 Comment
  CHSC86624  Plectritis macrocera Jenny Marr 1993-7-1 7 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC48723  Pleuricospora fimbriolata J. Pageau, E. Toth 1979-6-5 496 Siskiyou 6.6 mi. N. of the G.O. road on FS 11N24. Line Timber Sale, unit 14. Bulk Collection 174 799 Comment
  UCD90381  Poa annua Lewis S. Rose 1945-6-22 45177 Siskiyou Beaver Creek and Klamath River. 304 Comment
  RSA238339  Poa bolanderi Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1236 b Siskiyou North west of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1883 Comment
  RSA239047  Poa bolanderi Frederick W. Oettinger 1969-8-16 1395 Siskiyou Southwest of Wire Grass meadow above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  CAS-BOT-BC254785  Poa bolanderi 1955-7-17 218 Siskiyou Cold Spring Camp, around the spring 1889 Comment
  CDA2381  Poa bulbosa T. C. Fuller 1958-6-19 1829 Siskiyou Railroad yard, Montague. 0 Comment
  SEINET7075525 Image available Poa bulbosa A. G. Vestal 1955-5-16 s.n. Siskiyou About 6.2 miles northwest of Weed. 41? deg. 28' 27" North Latitude, -122? deg. 28' 53" West Longitude. UTM Zone 10, 543291mE, 4591309mN. (NAD 27). [Coordinate Datum: WGS84/NAD83]. Comment
  SEINET10817122  Poa compressa Paul M. Peterson, Jeffrey M. Saarela; Sears, Joe 2006-8-8 Peterson 19743 Siskiyou 6.5 mi SW of Etna on forest Service Rd IC-01 towards Etna Summit 1424 Comment
  SEINET10660678  Poa laevigata A. Arthur Heller 1905-6-19 Heller 8070 Siskiyou Grenada Station. Comment
  CAS-BOT-BC247011  Poa nervosa Alice Eastwood 1921-7-28 10930 Siskiyou Medicine Lake Comment
  RSA578032  Poa nervosa L. C. Wheeler 1935-6-30 3629 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  HSC101548  Poa palustris J. P. Smith 2009-8-22 12657 Siskiyou Along the road to Bray. 1422 Comment
  UCD91799  Poa palustris W. Bill Jarvis 1963-8-1 s.n. Siskiyou near Macdoel. Ladino Clover Pasture. Comment
  RSA238410  Poa pratensis Frederick W. Oettinger 1969-8-5 1191 Siskiyou English Lake to Abbotts. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CHSC91222  Poa pratensis subsp. pratensis Lowell Ahart; John Dittes 2005-6-10 12127 Siskiyou Rocky hill, north of the rock fence, about 200 yards east of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CAS-BOT-BC247533  Poa rhizomata Geo. D. Butler 1910-4-21 1206 Siskiyou Kidder Creek Comment
  SEINET10954314  Poa scabrella Frank W. Gould 1940-5-15 Gould 1234 Siskiyou Lower Bull Meadow, Goosenest Mountain, in dry soil at edge at wet meadow. Comment
  RSA578037  Poa secunda L. C. Wheeler 1935-6-30 3635 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  JEPS117863  Poa secunda subsp. secunda J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -19 Siskiyou North side of Mt. Shasta south of Hwy. 97 Hotlum Fire area burned in February 2006 1090 Comment
  JEPS33848  Poa secunda subsp. secunda Gilbert Muth 1966-7-31 477 Siskiyou n side Black Mt; Marble Mt Wilderness Area 2057 Comment
  SJSU6477  Poa secunda subsp. secunda R. W. Trivelpiece 1972-6-9 104 Siskiyou c. 4 mi E of Grass Lake 1524 Comment
  UC1025012  Poa secunda subsp. secunda Leo Whitney 1935-7-15 3485 Siskiyou 2 mi se Medicine Lake (Bullseye Lake) Comment
  UCD35442  Poa wheeleri Beecher Crampton 1956-8-22 3855 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  HSC44955  Polemonium californicum J. O. Sawyer 1978-6-16 3218 Siskiyou Marble Mtn. Wilderness along trail to Elk Valley 1921 Comment
  JEPS84249  Polemonium californicum L. R. Heckard with J. Hickman et al. 1986-7-17 6517 Siskiyou n slope of Condrey Mt. 1960 Comment
  RSA184627  Polemonium californicum Clare B. Hardham 1965-8-20 13035 Siskiyou Marble Mountains. Cudahy Lakes. 1524 Comment
  CAS-BOT-BC232898  Polemonium carneum Geo. D. Butler 1910-5-15 1344 Siskiyou McAdam Creek Comment
  UCD37089  Polygala californica Beecher Crampton 1956-8-21 3846 Siskiyou canyon of Sacramento River, just above junction of river's north fork with middle and south forks. 1066 Comment
  JEPS24632  Polygala cornuta var. cornuta Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6787 Siskiyou along Everitt Memorial Highway to Panther Meadow (lower slopes at sw base of mountain, 2.3 mi above town of Mt. Shasta (Sisson)); Mount Shasta 1219 Comment
  POM138800  Polygala cornuta var. cornuta E. B. Copeland 1903-8-13 3817 Siskiyou Sisson. 1067 Comment
  UC484058  Polygala cornuta var. cornuta Carl B. Wolf 1930-10-22 1756 Siskiyou along Pacific Highway 3 mi n Mt. Shasta City 1219 Comment
  RSA170306  Polygonum cuspidatum T. C. Fuller 1963-8-26 11152 Siskiyou Dunsmuir Grade, Hwy 99 to Mt. Shasta City, 0.5 miles N of the limits of Dunsmuir, siskiyou. Comment
  RSA233652  Polygonum davisiae Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38986 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  CAS-BOT-BC414594  Polygonum douglasii Louis C. Wheeler 1934-7-3 2860 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1676 Comment
  HSC19292  Polygonum douglasii J. O. Sawyer 1969-7-24 1495 Siskiyou NE facing seep SW of Sugar Lake 1890 Comment
  UC164402  Polygonum douglasii Geo. D. Butler 1910-7-31 1803 Siskiyou Yreka Comment
  POM104493  Polygonum douglasii Geo. D. Butler 1910-7-8 1676 Siskiyou Shackleford Creek. 1829 Comment
  UC1191245  Polygonum douglasii subsp. spergulariiforme Herbert L. Mason 1948-7-17 13594 Siskiyou Eastern Grass Lake Comment
  UC375322  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 189 Siskiyou near Yreka Comment
  HSC93007  Polygonum minimum Jennifer Whipple 1977-8-6 2230 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  SD62053  Polygonum phytolaccifolium Darley F. Howe 1965-8-8 4127 Siskiyou Saddle, south of Little Gray Back Klamath National Forest 1402 Comment
  UC922363  Polygonum phytolaccifolium Annie M. Alexander and Louise Kellogg 1949-7-19 5808 Siskiyou Paradise Lake Marble Mountains 1920 Comment
  CAS-BOT-BC420951  Polygonum sawatchense subsp. sawatchense Herbert L. Mason 1948-7-18 13623 Siskiyou Grass Lake Comment
  JEPS40856  Polygonum shastense Paul C. Hutchison 1962-8-2 935 Siskiyou between Panther Meadow and top of ski lift; Mt. Shasta 2621 Comment
  UC726984  Polygonum shastense A. A. Heller 1920-8-12 13520 Siskiyou spring above Horse Camp Comment
  CAS-BOT-BC421084  Polygonum spergulariiforme Lowell Ahart 1983-9-13 4411 Siskiyou Near the highway 96, near the Klamath River, about 5 miles west of Interstate Highway 5 1000 Comment
  CAS-BOT-BC421070  Polygonum spergulariiforme Doris K. Kildale 1928-7-25 5879 Siskiyou Klamath River near Hamburg 471 Comment
  SEINET193229 Image available Polypodium glycyrrhiza Lincoln Constance, Reed C. Rollins 1942-5-13 2908 Siskiyou Klamath River 4 miles east of Seiad 457 Comment
  HSC103017  Polypogon maritimus J. P. Smith 2014-6-6 13874 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  HSC69294  Polystichum imbricans Maralyn A. Renner 1980-7-24 1999 Siskiyou Lily Pad Lake 1768 Comment
  HSC79151  Polystichum imbricans C. J. Thomas 1983-10-1 101 Siskiyou 0.75 mi. from Indian Scotty campground on gravel rd. to Paradise Lake 854 Comment
  UC150381  Polystichum imbricans subsp. imbricans A. A. Heller 1905-6-17 8061 Siskiyou near Sisson Comment
  CAS-BOT-BC76738  Polystichum imbricans subsp. imbricans Louis C. Wheeler 1945-6-18 45079 Siskiyou Siskiyou Mts. - 2 miles east of White Mt., Mt. Diablo Mer. 1920 Comment
  UC42137  Polystichum kruckebergii unknown 1878-6-16 Siskiyou near Mt. Shasta Comment
  POM212871  Polystichum lemmonii L. C. Wheeler 1934-8-14 11415 Siskiyou North side White Mt. About rocks, dry north slope. 1768 Comment
  RSA105460  Polystichum lemmonii G. D. Barbe 1955-7-26 287 Siskiyou Among dry rocks at a small pond on the N slope of Scott Mtn. 1982 Comment
  RSA259549  Polystichum lemmonii J. P. Smith, J. O. Sawyer 1973-8-14 7308 Siskiyou On trail from Campbell Lake to Cliff Lake. 1828 Comment
  RSA693357  Polystichum lemmonii L. C. Wheeler 1934-8-13 3114 Siskiyou East Fork Horse Creek. About rocks, bare north slope 1982 Comment
  CAS-BOT-BC72398  Polystichum lonchitis Gilbert Muth 1965-8-3 s.n. Siskiyou Pothole in Marble, Marble Valley Comment
  CAS-BOT-BC72408  Polystichum lonchitis Louis C. Wheeler 1934-8-6 3058 Siskiyou Klamath National Forest, Rock Gulch 1828 Comment
  HSC19182  Polystichum lonchitis J. O. Sawyer 1968-7-2 352 Siskiyou Upper Drainage of Joe Creek 1677 Comment
  JEPS79619  Polystichum lonchitis Edward Lee ca. 1975 Siskiyou Russian Peak Comment
  UC1597991  Polystichum munitum Alan R. Smith with Christopher Richard, C. Don MacNeill, and Bernard Stoffel 1993-5-9 2549 Siskiyou ca. 1/2 mi sw Three Sisters (Little Fern Cave, ca. 2 mi along rail to Three Sisters, n side of and immediately adjacent to trail); Lava Beds Nat'l Monument 1341 Comment
  CAS-BOT-BC72511  Polystichum scopulinum Louis C. Wheeler 1934-8-6 3059 Siskiyou Klamath National Forest, Rock Gulch 1828 Comment
  SD82093  Polystichum scopulinum Louis C. Wheeler 1934-8-26 3225 Siskiyou Siskiyou Mountains, Trapper Creek, Mt. Diablo Mer. 1980 Comment
  CAS-BOT-BC72513  Polystichum scopulinum Louis C. Wheeler 1934-8-16 3172 Siskiyou 2 miles east of White Mt., Siskiyou Mts. 1920 Comment
  HSC19175  Populus tremuloides J. O. Sawyer 1968-7-23 603 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  UCD77957  Populus trichocarpa Robert E. Preston 2002-6-21 1876 Siskiyou Klamath National Forest, Rainbow Mountain, S slope, N of Trout Creek 1765 Comment
  CHSC91716  Potamogeton crispus G. F. Hrusa 2001-6-6 15860 Siskiyou Siskiyou Mountains. Klamath River, +/- 1.5 mi. E of Ft. Goff campground. At river edge. Adjacent to 15859, app. 20 meters downstream. UTM: 10T, 463312 N, 0481408 E. 350 Comment
  CDA34728  Potamogeton pusillus var. tenuissimus L. Ahart, John Dittes 2010-7-3 16963 Siskiyou In the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. Comment
  CAS-BOT-BC143180  Potentilla breweri Harley P. Chandler 1901-6-1 1697 Siskiyou Near Marble Mountain 1524 Comment
  HSC90540  Potentilla breweri Jennifer Whipple 1976-6-19 1052 Siskiyou Near Durney Lake 2073 Comment
  JEPS57173 Image available Potentilla cristae L. R. Heckard 1967-8-13 1702 Siskiyou Summit Region of Mount Eddy 2743 Comment
  CAS-BOT-BC142033  Potentilla drummondii John Thomas Howell 1939-8-2 14906 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC44969  Potentilla drummondii J. O. Sawyer 1978-6-20 3270 Siskiyou Marble Mtn. Wilderness Area, Hamilton Camp 1829 Comment
  HSC37144  Potentilla drummondii A. M. Montalvo, J. D. Ackerman 1974-7-2 346 Siskiyou E slope of Mt. Eddy, near Morgan Meadows, W of Mt Shasta City. Comment
  HSC18931  Potentilla flabellifolia J. O. Sawyer 1969-8-4 1820 Siskiyou Above Sugar Lake 2134 Comment
  UC1409358  Potentilla flabellifolia Frederick W. Oettinger 1968-9-5 718 Siskiyou se side Hancock Lake (High Lake Basins in the vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1889 Comment
  RSA237616  Potentilla flabellifolia Frederick W. Oettinger 1968-9-5 718 Siskiyou Stream near campsite, SE side of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UC903055  Potentilla fruticosa Mrs. H. P. Bracelin 1931-6-21 456 Siskiyou above Dobkins Lake (n side of Mount Eddy); above Dobkins Lake, n side Mount Eddy 2133 Comment
  RSA237848  Potentilla glandulosa subsp. ashlandica Frederick W. Oettinger 1969-7-13 1002 Siskiyou North of upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  JEPS47217  Potentilla gracilis var. gracilis Geo. D. Butler 1909-6-13 923 Siskiyou Oro Fino Comment
  CHSC38997  Potentilla millefolia J. D. Jokerst 1983-7-5 1821 Siskiyou Portions of the east edge of Atkin's Meadow, ca 15 air miles E of McCloud. Comment
  UC725977  Potentilla millefolia A. A. Heller 1938-7-13 15266 Siskiyou about a mi s Bray; s of Bray 1402 Comment
  HSC27972  Prosartes hookeri Carl W. Mize 1972-9-23 111 Siskiyou Along Steinacher Creek Rd. 762 Comment
  CAS-BOT-BC516386  Prosartes hookeri Doris K. Kildale 1929-8-24 9078 Siskiyou Rattlesnake Meadow, trail to Preston Peak Comment
  CAS-BOT-BC516388  Prosartes hookeri Alice Eastwood 1921-7-31 s.n. Siskiyou Shasta Springs Comment
  HSC69092  Prunella vulgaris Maralyn A. Renner 1980-8-4 2225 Siskiyou Flint Valley 1390 Comment
  HSC29322  Prunella vulgaris subsp. lanceolata Frederick W. Oettinger 1969-8-18 1422 Siskiyou Marble Mountain Wilderness Area, W of Horse Range Lake outlet 1822 Comment
  UC1312930  Prunus emarginata John M. Tucker 1963-7-7 3711 Siskiyou vicinity of Paradise Lake (base on e side of Kings Castle); Marble Mountain Wilderness Area, Kings Castle 1981 Comment
  UC618857  Prunus emarginata W. Bridge Cooke 1938-7-22 11318 Siskiyou Mount Shasta, Sisson Southern Trail Sisson Southern Trail; Mount Shasta, Sisson Southern Trail 1371 Comment
  RSA453224  Prunus emarginata Bonnie C. Templeton 1957-6-21 s.n. Siskiyou On the road up to Mt. Shasta. Comment
  RSA96065  Prunus emarginata Percy C. Everett 1954-10-10 20259 Siskiyou 6.8 miles E of McCloud on road to Mt. Shasta (the town). Hwy 89. 1174 Comment
  POM88103  Prunus subcordata Geo. D. Butler 1910-4-12 1170 Siskiyou Yreka Creek. Comment
  HSC18834  Prunus virginiana var. demissa D. M. Thomson 1965-7-10 134 Siskiyou Lava Beds N.M., 0.5 mi. S on main rd. from information center Comment
  CAS-BOT-BC239808  Pseudoroegneria spicata Louis C. Wheeler 1934-6-29 2831 Siskiyou Klamath National Forest, Soda Creek 1066 Comment
  CAS-BOT-BC239822  Pseudoroegneria spicata David D. Keck 1949-7-19 6354 Siskiyou 6.5 mi. SW of Yreka on road to Ft. Jones, nr. head of Yreka Creek 1127 Comment
  POM101810  Pseudostellaria jamesiana Geo. D. Butler 1910-6-4 1493 Siskiyou Shackleford Creek. Comment
  CAS-BOT-BC80177  Pseudotsuga menziesii Doris K. Kildale 1927-11-20 4178 Siskiyou Fort Jones Comment
  RSA639072  Pseudotsuga menziesii L. C. Wheeler 1958-8-18 7397 Siskiyou West Fork Seiad Creek. Comment
  JEPS101317  Psilocarphus oregonus Dean W. Taylor 1999-6-9 17241 Siskiyou Agate Flat, 0.3 miles S of Oregon State Line 1005 Comment
  RSA184807  Pteridium aquilinum var. pubescens Gilbert Muth 1966-8-1 486 Siskiyou Marble Valley Horse Pasture, Marble Mountains. 1793 Comment
  RSA12613  Pterospora andromedea C. B. Wolf 1934-7-5 5972 Siskiyou 7 3/10 mi. from Dry Lake Look out, Siskiyou Mts. on rd. to Oak Knoll R.S. on Klamath River. 1463 Comment
  RSA176490  Pteryxia terebinthina var. californica A. A. Heller 1928-6-9 s.n. Siskiyou Located on Spring Hill near Sisson. Comment
  SD90132  Purshia tridentata Nancy Ryan Zabriskie, Walter Zabriskie 1971-7-23 411 Siskiyou St. Hwy 89 just east of McCloud, southeast of Mt. Shasta Comment
  CAS-BOT-BC147900  Purshia tridentata var. tridentata W. R. Dudley 1899-8-9 s.n. Siskiyou Near Sisson Comment
  CAS-BOT-BC147912  Purshia tridentata var. tridentata D. E. Breedlove 1962-6-11 3360 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  POM62291  Pycnanthemum californicum E. B. Copeland 1903-8-12 3837 Siskiyou Sisson. Comment
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Jan 23 2011
  RSA0082800  Pyrola aphylla Frederick W. Oettinger 1969-8-9 1324 Siskiyou Along main trail (North fork of Salmon River) between 5 mile Stock Gate and Abbott's Upper Cabin. 1098 Comment
  UC166595  Pyrola asarifolia Geo. D. Butler 1910-7-9 1698 Siskiyou Shackleford Creek 1219 Comment
  UC21710  Pyrola asarifolia C. B. Bradley 1879-1 Siskiyou Comment
  CHSC1410  Pyrola asarifolia subsp. asarifolia V. Holt 1932-6-28 Siskiyou S. S. Campus, Mt. Shasta City. 1097 Comment
  JEPS66564  Pyrola crypta W. L. Jepson 1940-6-27 20038 Siskiyou East slope of Mt. Shasta 1828 Comment
  JEPS82485  Pyrola crypta Gilbert Muth 1965-8-10 198 Siskiyou Along either trail, Black Mt., Marble Mt 1828 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
  CAS-BOT-BC94554  Pyrola picta R. C. Wenk 2006-9-2 560 Siskiyou trail to Caribou Lakes from Big Flat Meadow, by side of trail in coniferous forest below Browns Meadow 2011 Comment
  UCR93347  Pyrola picta Kathy Harper, Dane Karr 1994-6-10 s.n. Siskiyou North Coast Range, Indian Creek Camp, 14.5 mi NW of Happy Camp along Indian Creek Road, off Hwy 96. Near campsites 7 to 9 610 Comment
  UC166180  Pyrola picta Geo. D. Butler 1908-7-2 38 Siskiyou head Long Gulch near Yreka Comment
  UC618903  Pyrola picta var. picta W. B. Cooke 1938-8-5 11456 Siskiyou Sisson Southern Trail, Canadian. 1828 Comment
  CDA8522  Pyrrocoma racemosa var. paniculata Bill Huse 1953-7-31 Siskiyou Bill Sargent, 6 miles east of Dorris. 0 Comment
  OBI55547  Pyrrocoma racemosa var. pinetorum David J. Keil 1992-7-24 23572 Siskiyou East of McCloud along Hwy 89, 7.7 mi W of Shasta County line. Comment
  CAS-BOT-BC68604  Quercus chrysolepis Dr. A. Kellogg; W. G. W. Harford 1868-9 915 Siskiyou Ukiah Comment
  CAS-BOT-BC68646  Quercus chrysolepis Doris K. Kildale 1929-7-20 8748 Siskiyou Elk Lick, South Fork Indian Creek Comment
  POM270211  Quercus chrysolepis George B. Grant 1902-09 s.n. Siskiyou Dunsmuir, N. California. Comment
  UC375247  Quercus chrysolepis Geo. D. Butler 1908-7-19 1075 Siskiyou Humbug Creek Comment
  JEPS37936  Quercus garryana W. L. Jepson 1907-7-22 2950 Siskiyou near Hamburg (w Siskiyou County); Klamath River Comment
  RSA237385  Quercus garryana var. breweri Frederick W. Oettinger 1968-9-1 632 Siskiyou On west facing gradual slope on e. side of Abbots Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1723 Comment
  UC164437  Quercus garryana var. breweri Geo. D. Butler 1908-8-8 232 Siskiyou Marble Valley Comment
  OBI36119  Quercus garryana var. garryana David J. Keil 1983-7-3 17379 Siskiyou 11 mi NE of jctn with SR 3 along Gazelle-Callahan rd Comment
  CAS-BOT-BC105102  Quercus kelloggii Copeland 1933-7-14 3521 Siskiyou Klamathon Comment
  HSC8261  Quercus kelloggii C. B. Wolf 1927-8-26 1027 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  POM166670  Quercus kelloggii E. B. Copeland 1903-7-14 3521 Siskiyou Klamathon. Comment
  CHSC83156  Quercus sadleriana G. J. Muth; J. M. Tucker 1972-8-9 1797 Siskiyou Near Cook and Green Pass. Ridge top. 1462 Comment
  HSC62285  Quercus sadleriana Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  JEPS27149  Quercus sadleriana Lauramay T. Dempster 1961-7-1 1831 Siskiyou s slope White Mountain Comment
  UC971916  Quercus sadleriana Herbert L. Mason 1950-7-16 14060 Siskiyou road from Happy Camp, California to Waldo, Oregon Comment
  UCD47262  Quercus sadleriana John M. Tucker 1972-8-8 4247 B Siskiyou (Q. garryana Hook. var. breweri (Engelm.) Jepson). 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. 1828 Comment
  UCD83688  Quercus sadleriana Sandra L. Holloway 1963-10-12 77 Siskiyou Marble Mountain Wilderness Area, junction of Red Rock Valley trail and Canyon Creek trail. 1341 Comment
  CDA22067  Quercus vacciniifolia J. M. Tucker 1948-8-3 1776 Siskiyou 6.7 miles (by road) below the summit of Happy Camp - Waldo Road;. 0 Comment
  HSC19224  Quercus vacciniifolia J. O. Sawyer 1968-9-9 658 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC535  Quercus vacciniifolia William J. Ferlatte 1967-8-23 1085 Siskiyou Head of Kidd Creek; E side of Black Mtn. 2134 Comment
  UC848338  Quercus vacciniifolia unknown 1941-9-16 16320 Siskiyou along the Castle Lake Road Comment
  UC444423 Image available Raillardella pringlei C. A. Pringle 1882-8-19 Siskiyou Headwaters of the Sacramento River. 2286 Comment
  HSC36880  Ranunculus alismifolius var. hartwegii J. P. Smith 1974-5-26 7533 Siskiyou Chandler Glade on FS 47N03 1768 Comment
  UC454031  Ranunculus aquatilis var. capillaceus I. J. Condit 1909-8-22 Siskiyou Sisson Comment
  UC1023837  Ranunculus aquatilis var. capillaceus Douglas Barbe 1955-6-29 52 Siskiyou 4.1 mi se Etna (on Eastside Rd.); Klamath Mountains 914 Comment
  CDA3501  Ranunculus arvensis T. C. Fuller 1962-5-17 8740 a Siskiyou Behind El Rancho Motel, Yreka. 0 Comment
  SEINET12100399  Ranunculus flammula H. P. Chandler 1901-1 1552 Siskiyou near Marble Mountain 1829 Comment
  RSA238276  Ranunculus gormanii Frederick W. Oettinger 1969-7-14 1015 Siskiyou Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1905 Comment
  UC375276  Ranunculus occidentalis Geo. D. Butler 1909-3-14 567 Siskiyou near Yreka Comment
  HSC40653  Ranunculus occidentalis var. occidentalis J. P. Smith 1973-5-5 6461 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  HSC61938  Ranunculus orthorhynchus Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  UC705886  Rhamnus californica subsp. californica Marion Ownbey and Fred G. Meyer 1940-7-8 2224 Siskiyou 12 mi above Happy Camp (along Indian Creek); Indian Creek Comment
  RSA13287  Rhamnus californica subsp. occidentalis Doris K. Kildale 1929-7-20 8655 Siskiyou Trail up S Fork of Indian Creek, near Eek Lick. 1524 Comment
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Jan 25 2013
  CAS-BOT-BC56113  Rhamnus ilicifolia W. B. C. 1940-6-20 15141 Siskiyou along the Klamath River west of the Pacific Highway 609 Comment
  HSC100305  Rhamnus ilicifolia J. P. Smith, & J. O. Sawyer 2011-6-25 13278 Siskiyou Along Eastside Callahan - McConaughy Gulch Rd., N of Callahan. Comment
  HSC68218  Rhamnus ilicifolia J. P. Smith, Steve Selva 1970-6-14 3865 Siskiyou Comment
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Feb 1 2013
  SFV2668  Rhododendron columbianum J. M. Tucker 1963-7-5 3704 Siskiyou Salmon Mountains. On Blake's Fork of South Russian Creek (a tributary of Salmon River), about 7 miles (airline) east of Sawyer's Bar. 1616 Comment
  OBI55461  Rhododendron occidentale David J. Keil, Kathleen Keil 1992-7-21 23543 Siskiyou Klamath NF SE of Callahan. Forest Road 40N08, 1.7 mi W of Scott Mtn road (Hwy 3)). Comment
  UCSB24057  Ribes aureum Favero, R. 1968-3-26 Siskiyou 12 miles east of Montague; in Little Shasta area; Cascade Mountains 792 Comment
  HSC44980  Ribes binominatum J. O. Sawyer 1978-6-21 3283 Siskiyou Marble Mtn. Wilderness Area, along trail N of Clear Lake 1951 Comment
  UCR47904  Ribes cereum 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
  RSA0024868  Ribes cereum Louis C. Wheeler 1934-6-29 2825 Siskiyou Soda Creek. Sterling Mtn. Siskiyou Mtns. 1280 Comment
  SEINET13942420 Image available Ribes cereum Frank W. Gould 1940-1 1254 Siskiyou Bald Mountain on road from Mt. Hebron to Montague,in pine woods. 5,500 ft. 152 Comment
  SEINET9321585  Ribes cereum var. cereum 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
  CAS-BOT-BC6178  Ribes glanduliferum Amos Arthur Heller 1905-6-9 8005 Siskiyou Yreka Comment
  RSA0021096  Ribes inerme var. klamathense Geo. D. Butler 1910-5-18 1362 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC173285  Ribes lacustre John Thomas Howell 1937-7-22 13305 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC19429  Ribes lacustre J. O. Sawyer 1968-7-23 577 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  HSC29431  Ribes lacustre Frederick W. Oettinger 1968-8-6 426 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  CAS-BOT-BC173391  Ribes lobbii W. R. Dudley 1899-8-22 s.n. Siskiyou Side of Craggy Peak 1828 Comment
  RSA47619  Ribes lobbii Roxana S. Ferris, Laura Lorraine 1948-6-12 11768 Siskiyou 6 miles from Etna on forks of Salmon Road 1677 Comment
  UC165265  Ribes lobbii Geo. D. Butler 1910-5-30 1442 Siskiyou Humbug Creek Comment
  RSA0021629  Ribes lobbii M. B. Dunkle 1944-7-18 9151 Siskiyou Siskiyou National Forest Comment
  CAS-BOT-BC219270  Ribes nevadense Alice Eastwood 1921-7-24 10777 Siskiyou Castle Lake Comment
  HSC19438  Ribes nevadense J. O. Sawyer 1969-8-5 1946 Siskiyou Along Sugar Creek. 1921 Comment
  JEPS49284  Ribes nevadense Willis L. Jepson 1894-8-4 13520 Siskiyou half-way up from Cedar Spring to Horse-Camp; Mt. Shasta Comment
  UC478902  Ribes nevadense Marcus E. Jones, A. M. 1931-7-17 29003 Siskiyou Shasta City (Session's) Comment
  RSA0023150  Ribes nevadense John Dourley, Walter Wisura 1982-10-17 3884 Siskiyou Mill Creek Ridge, ca. 18 mi N of Happy Camp, along old road up Indian Creek. 1524 Comment
  RSA0022718  Ribes nevadense var. glaucescens Elmer I. Applegate 1895-5-29 197 Siskiyou Base of Mt. Shasta, near Sisson, Strawberry Valley. Comment
  UC1181812  Ribes roezlii Dorothy Parker 1950-4-23 404 Siskiyou near Etna Creek; Siskiyou Mountains, Salmon Mountain Range 914 Comment
  UC165932  Ribes roezlii Geo. D. Butler 1910-4-21 1211 Siskiyou Oro Fino Comment
  CAS-BOT-BC200011  Ribes roezlii var. cruentum Elmer I. Applegate 1935-6-6 9358 Siskiyou North slope of Caldwell Butte, Lava Beds National Monument Comment
  HSC65648  Ribes roezlii var. cruentum J. P. Smith 1976-5-5 8700 Siskiyou Road between Forks of Salmon and Somes Bar 366 Comment
  SEINET10970387  Ribes roezlii var. roezlii Mary Merello 1993-6-23 Merello 701 Siskiyou Shasta-Trinity National Forest. Along county road A-10 (also named Everitt Memorial Highway) climbing Mt. Shasta. Mixed conifer, sub-alpine vegetation, volcanic soils; Aibes and Arctostaphylos dominant species (mile 10 marker 6650 ft.) 1960 Comment
  CAS-BOT-BC144519  Ribes sanguineum var. sanguineum Geo. D. Butler 1910-7-12 1759 Siskiyou Dry ridge, Shackleford Creek 1371 Comment
  UCR101149  Ribes sanguineum var. sanguineum L. C. Wheeler 1959-7-19 7584 Siskiyou Saloman and Marble Mtns, Black Bear Creek, between Sawyers Bar and Cecilville 1372 Comment
  CAS-BOT-BC144512  Ribes sanguineum var. sanguineum Doris K. Kildale 1928-8-18 6440 Siskiyou head of north fork of Salmon River at Finley Upper Camp Comment
  CAS-BOT-BC173902  Ribes velutinum Doris K. Kildale 1929-6-25 8369 Siskiyou 6 miles north of Hornbrook on Klamath River 609 Comment
  CAS-BOT-BC173909  Ribes velutinum Alice Eastwood; John Thomas Howell 1934-4-20 1758 Siskiyou Near Yreka along Shasta River Comment
  UCD102537  Ribes viscosissimum Jack Major; M. Fleschner, R. Pemble 1966-9-4 s.n. Siskiyou East of Marble Mountain, Marble Mountains. 2042 Comment
  RSA0020921  Ribes viscosissimum Gilbert Muth 1966-7-17 380 Siskiyou Along trail to Marble Mountain Lookout, Marble Mountains. 1814 Comment
  UC375305  Rorippa nasturtium-aquaticum Geo. D. Butler 1908-6-23 1057 Siskiyou near Yreka; near Yreka Comment
  CDA22999  Rorippa nasturtium-aquaticum F. D. Horn 1980-7-2 s.n. Siskiyou Roadside, Highway 96 about 10 miles N. of Somes Bar. 0 Comment
  CAS-BOT-BC147461  Rosa californica Don. Reinoehl 1925-4-1 s.n. Siskiyou Dunsmuir Comment
  UC375394  Rosa californica Geo. D. Butler 1908-9-6 1045 Siskiyou dry land near Yreka Comment
  HSC19389  Rosa gymnocarpa J. O. Sawyer 1968-7-23 601 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake 1829 Comment
  POM140328  Rosa gymnocarpa E. B. Copeland 1903-9-5 3874 Siskiyou Foot of Mt Eddy 1220 Comment
  RSA237785  Rosa gymnocarpa Frederick W. Oettinger 1969-7-11 970 Siskiyou Between English Lake and Diamond Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1951 Comment
  UC164425  Rosa gymnocarpa Geo. D. Butler 1910-8-7 1816 Siskiyou Humbug Mountain 1219 Comment
  SEINET7665504  Rosa gymnocarpa G. D. Butler 1910-8-7 1816 Siskiyou Humbug Mt. 1219 Comment
  CAS-BOT-BC147076  Rosa pisocarpa John Thomas Howell 1937-7-23 13354 Siskiyou South Fork of Salmon River near Big Flat 1524 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
  UC527337  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou at roadside near Fish Hatchery; Mt. Shasta City (Sisson) 1066 Comment
  CAS-BOT-BC148192  Rosa rubiginosa Carl B. Wolf 1927-8-26 1007 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  HSC36659  Rubus armeniacus Brent Whitely 1975-6-20 6 Siskiyou 223 Comment
  HSC62281  Rubus lasiococcus Al Hobart 1968-6-20 Siskiyou Youngs Valley 1768 Comment
  HSC42911  Rubus leucodermis J. O. Sawyer, K. T. Stillman 1976-7-2 2817 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  UC1190259  Rubus leucodermis Ira L. Wiggins 1955-7-22 13456 Siskiyou 9.5 mi above Cecilville (in South Fork of Salmon River); South Fork Salmon River 1066 Comment
  CAS-BOT-BC147320  Rubus parviflorus H. A. Thomas; J. H. Thomas 1954-7-23 4463 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Vicinity of Blind Horse Creek 1036 Comment
  HSC65560  Rubus parviflorus R. White 1977-7-21 132 Siskiyou Slope below outlet of Raspberry Lake. 1512 Comment
  JEPS44777  Rubus ursinus W. L. Jepson July, 1894 13881 Siskiyou Sisson Comment
  JEPS87795  Rudbeckia glaucescens Vernon H. Oswald and Lowell Ahart 1994-8-1 6418 Siskiyou 9 mi. s.w. of dam at Lake Siskiyou (Forest Rd. 26 paralleling S. Fork Sacramento R., 0.3 mi. e. of Forest Rd. 40N43) 1438 Comment
  RSA92514  Rudbeckia occidentalis L. C. Wheeler 1934-8-2 3024 Siskiyou Jaynes Canyon, Siskiyou Mountains. 1829 Comment
  CHSC71495  Rumex crispus Vernon H. Oswald; Lowell Ahart 1998-7-21 9345 Siskiyou Northeast of Weed and east of Grass Lake on the south side of Tennant Rd. 0.2 mi southeast of Old State Hwy. to Bray and on the east side of the intermittent stream draining Dry Lake. 1402 Comment
  UC618814  Rumex crispus W. Bridge Cooke 1938-7-15 11198 Siskiyou Bear Springs Mount Shasta 1524 Comment
  RSA237864  Sagina decumbens subsp. occidentalis Frederick W. Oettinger 1969-8-22 1495 Siskiyou SE of Horse s Hole, near Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1820 Comment
  RSA237869  Sagina decumbens subsp. occidentalis Frederick W. Oettinger 1969-8-31 1566 Siskiyou Weed patch near English Lake; Salmon Mts; The high lake basins in the vicinity of English Peak, Marble Mt. Wilderness Area. Comment
  RSA47791  Sagina saginoides Roxana S. Ferris, Laura Lorraine 1948-6-12 11745 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  HSC65319  Sagittaria cuneata J. P. Smith, Steve Selva 1970-8-8 4547 Siskiyou Juanita Lake Comment
  RSA8226  Sagittaria cuneata Elmer I. Applegate 1923-8-21 3912 Siskiyou Willow Creek, near Dome Mountain. Comment
  CAS-BOT-BC103370  Salix bonplandiana Doris K. Kildale 1929-6-25 8359 Siskiyou Klamath River, 6 miles north of Hornbrook 609 Comment
  CAS-BOT-BC102814  Salix boothii Gilbert Muth 1966-8-3 498 Siskiyou Marble Valley, Marble Mts. 1792 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
  UC375236  Salix eastwoodiae Geo. D. Butler 1908-8-7 152 Siskiyou bank of lake at head of W. Fork Woody Creek Comment
  UC846308  Salix eastwoodiae John Thomas Howell 1939-8-5 15078 Siskiyou Spirit Lake; Marble Mts. Comment
  LA208557  Salix exigua var. exigua W. B. C.; 1940-6-20 15157 Siskiyou along the Pacific Highway in the Klamath River gorge 609 Comment
  LA208690  Salix exigua var. hindsiana Mrs. H. P. Bracelin; 1931-6-22 477 Siskiyou Pit River at Gibson flag station, 125 km N of Red Bluff 450.0 Comment
  SD991  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1931-6-22 477 Siskiyou Pit River at Gibson Flag station, 125 km. north of Red Bluff, along margin of river 449 Comment
  UC481745  Salix exigua var. hindsiana Mrs. H. P. Bracelin 1931-6-22 477 Siskiyou 125 km n Red Bluff (Pit River at Gibson flag station (R.R. stop Sta.)) 450 Comment
  CAS-BOT-BC107654  Salix jepsonii Alice Eastwood 1921-7-24 10716 Siskiyou Castle Lake Comment
  RSA0034682  Salix lasiandra H. P. Bracelin 1931-6-19 424 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City. 1350 Comment
  UC164037  Salix lasiandra subsp. lasiandra Geo. D. Butler 1910-4-13 1171 Siskiyou Yreka Creek Comment
  CAS-BOT-BC125459  Salix lasiandra var. lasiandra C. Hart Merriam 1907-9-26 s.n. Siskiyou Klamath Hot Springs, Shovel Creek Comment
  CAS-BOT-BC125474  Salix lasiandra var. lasiandra W. R. Dudley 1907-8-24 s.n. Siskiyou South Fork Salmon, below Smiths Comment
  CAS-BOT-BC107074  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 420 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1515 Comment
  CAS-BOT-BC107080  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 831 Siskiyou East side of Mt. Eddy; Wagon Creek above Metcalf ranch house; 8-9 miles N.W. of Mt. Shasta City 1203 Comment
  UC481900  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 409 Siskiyou about 16 km nw Shasta City (ne side of mt., edge of stream above Metcalf ranch house); Mount Eddy 1425 Comment
  UC482340  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-22 476 Siskiyou Gibson flag station Pit River (125 km n of Red Bluff) 450 Comment
  UC576380  Salix lasiolepis Mrs. H. P. Bracelin 1935-9-3 853 Siskiyou 11 mi. n.w. from Mt. Shasta City (ca. 2 mi. e. of Burney Mill, n. base Mt. Eddy, flat beside creek at second bridge); n. base Mt. Eddy 1127 Comment
  POM220465  Salix lasiolepis var. bigelovii H. P. Bracelin 1931-6-20 434 Siskiyou About 10 km NW of Shasta City. E of Metcalf ranch house. 1080 Comment
  CAS-BOT-BC124896  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
  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
  SBBG28805  Salix scouleriana Mrs. H. P. Bracelin 1931-6-21 472 Siskiyou N base of Mount Eddy, ca. 13 km NW of Shasta City, ca. 1.3 km E of Burney Mill 1110 Comment
  UC481710  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 445 Siskiyou ca. 17 km. n.w. Shasta City (above stream in Wagon Creek Canyon, ca. 1 km. up from Metcalf ranch house, e. side of Mt. Eddy); Mt. Eddy Comment
  HSC91184  Salix sitchensis Jennifer Whipple 1976-6-19 1065 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  UC61047  Sambucus mexicana W. A. Setchell, C. C. Dobie 1902-7-18 Siskiyou Sisson Mount Shasta Comment
  CAS-BOT-BC236483  Sambucus racemosa subsp. racemosa Annetta Carter 1939-8-21 1479 Siskiyou Southeast end of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2042 Comment
  HSC19413  Sambucus racemosa var. melanocarpa J. O. Sawyer 1968-7-23 592 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  CDA36167  Sanguisorba minor C. Pirosko 2002-5-14 s.n. Siskiyou Jones Valley 0 Comment
  UC1258448  Sanicula graveolens Maralyn A. Renner 1980-7-23 1831 Siskiyou about 1 mi e of Cook and Green Pass ( Klamath National Forest, Pacific Crest Trail); Klamath National Forest, Pacific Crest Trail 1752 Comment
  POM77781  Sanicula graveolens Geo. D. Butler 1910-7-13 1778 Siskiyou [Unspecified] 1220 Comment
  SEINET3240057  Santalaceae R. L. Mathiasen 2003-1 2003 -47 Siskiyou On trail to Eaton Lake, Russian Peak Wilderness Area; -1700 Comment
  UCSB24548  Saponaria officinalis Keefe, Joseph 1967-7-11 Siskiyou Fort Goff Campground; east of Seiad Valley 396 Comment
  CAS-BOT-BC466232  Sarcodes sanguinea John Van Denburg 1913-3-1 s.n. Siskiyou Callahans Comment
  CDA8574  Saussurea americana T. C. Fuller, Don Shaw 1974-9-24 2045 Siskiyou Northwestern; Klamath Ranges region; Headwaters of Horse Creek, southwest slope of White Mountain, Siskiyou Mountains. 0 Comment
  JEPS84268  Saxifraga aprica L. R. Heckard with J. Hickman et al. 1986-7-17 6465 Siskiyou 5 mi n of the town of Seiad Valley (Trail up Kangaroo Peak, s of Lily Pad Lake); Kangaroo Peak 2011 Comment
  UC1053439  Saxifraga californica Rimo Bacigalupi, and Arthur Holmgren 1950-4-24 3135 Siskiyou opposite town Dunsmuir (directly opposite railroad shops, along Sacramento River, e side of canyon); cliffs along Sacramento River Comment
  RSA237683  Saxifraga mertensiana Frederick W. Oettinger 1969-7-16 1039 Siskiyou Base of cliffs S of Abbott s Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1860 Comment
  RSA184815  Saxifraga nidifica var. claytoniifolia Gilbert Muth 1966-7-8 367 Siskiyou Marble Valley Meadow. Marble Mtns. 1793 Comment
  CAS-BOT-BC445878  Saxifragopsis fragarioides Doris K. Kildale 1928-8-19 6612 Siskiyou Hancok Lookout on trail to Marble Mountain 2194 Comment
  CAS-BOT-BC445876  Saxifragopsis fragarioides M. B. Dunkle 1945-7-22 9242 Siskiyou Wooley Pocket, Klamath Forest 2133 Comment
  CAS-BOT-BC445882  Saxifragopsis fragarioides C. G. Pringle 1883-9-1 s.n. Siskiyou Unspecified. Comment
  RSA0101700  Sceptridium multifidum Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1278 Siskiyou On the east shore of English Lake. 1753 Comment
  CAS-BOT-BC283649  Schedonorus pratensis Louis C. Wheeler 1934-6-26 2796 Siskiyou Cottonwood Creek, Siskiyou Mountains 838 Comment
  CAS-BOT-BC111101  Scirpus microcarpus Copeland 1903-8-14 3722 Siskiyou Sisson Comment
  HSC62279  Scirpus microcarpus Al Hobart 1968-6-13 Siskiyou Young's Valley Comment
  HSC30680  Scirpus microcarpus Frederick W. Oettinger 1969-7-31 1121 Siskiyou Marble Mtn. Wilderness Area, inlet stream to Upper English Lake 1768 Comment
  RSA238943  Scirpus microcarpus Frederick W. Oettinger 1969-7-31 1121 Siskiyou Where inlet stream to Upper English Lake breaks out of woods and heads into open wet meadow. Salmon Mountains, the high lake basins in the vicinity of English Peak, Marble Mountains Wilderness Area 1768 Comment
  HSC100034  Sclerochloa dura J. P. Smith, & J. O. Sawyer 2010-5-6 12819 Siskiyou Camp Creek Campground. 727 Comment
  UC61086  Sclerolinon digynum W. A. Setchell, C. C. Dobie 1902-7-21 Siskiyou Sisson; Mount Shasta Comment
  RSA105370  Scribneria bolanderi G. D. Barbe 1955-7-6 125 Siskiyou SE shore of Taylor Lake, Salmon Mtns. 1951 Comment
  UC164350  Scrophularia lanceolata Geo. D. Butler 1910-5-22 1383 Siskiyou Yreka Creek Comment
  CHSC63403  Scutellaria antirrhinoides Vernon H. Oswald; Lowell Ahart 1994-7-11 6406 Siskiyou Forest Rd. 26 (to Mt. Shasta) paralleling the South Fork of the Sacramento River, just W of Forest Rd. 40N43, 9.2 mi SW of the dam at Lake Siskiyou. 1447 Comment
  RSA17980  Scutellaria antirrhinoides Carl B. Wolf 1927-8-26 996 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  SBBG25863  Scutellaria antirrhinoides D. Myrick 1966-8-9 1507 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  UC163835  Scutellaria antirrhinoides Geo. D. Butler 1910-7-9 1690 Siskiyou Shackleford Creek 1219 Comment
  RSA120941  Scutellaria nana Milo S. Baker 1957-6-15 13105 Siskiyou Just south of Weed. Comment
  UC1034648  Secale cereale Milo S. Baker and Douglas Barbe 1955-6-27 13088 Siskiyou about 1 mi w Gazelle (on road to Callahan) 914 Comment
  CHSC462  Sedum V. Holt 1943-8-9 Siskiyou Marble Mountains 1828 Comment
  HSC59373  Sedum lanceolatum Thomas W. Nelson, J. P. Smith 1979-6-15 4808 Siskiyou Above road to Carmen Lake, 0.6 mi. from junction with State Rte. 3 1738 Comment
  HSC69136  Sedum laxum Maralyn A. Renner 1980-8-8 2482 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  UC1409245  Sedum obtusatum subsp. boreale Frederick W. Oettinger 1968-9-7 770 Siskiyou nw-facing slope Golden Peak (due se Tobacco Lake and at approx mid slope, Salmon Mountains, High Lake Basins vicinity English Peak, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area, Golden Pe 2011 Comment
  UC455356  Sedum obtusatum subsp. boreale I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat (Mt. Bradley); , near Shasta Retreat 1828 Comment
  HSC81579  Sedum obtusatum subsp. obtusatum Thomas W. Nelson, Jane P. Nelson 1980-7-17 6088 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  HSC25457  Sedum obtusatum subsp. retusum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5652 Siskiyou E of Cook and Green Pass 1524 Comment
  CAS-BOT-BC61466  Sedum oregonense Gilbert Muth 1965-8-3 s.n. Siskiyou Marble Valley Comment
  CAS-BOT-BC64644  Sedum oregonense John Thomas Howell 1937-7-26 13566 Siskiyou Between Big Flat and Caribou Gulch, Siskiyou Co. 2286 Comment
  RSA597965  Sedum oregonense L. C. Wheeler 1963-8-31 8322 Siskiyou Siskiyou Mountains. Devil's Punch Bowl off Clear Creek. 1524 Comment
  RSA603161  Sedum oregonense L. C. Wheeler 1934-7-3 2847 Siskiyou Head of Soda Crk, Sterling Mt, Siskiyou Mtns. (Mt. Diablo Mer.) 677 Comment
Read comments
Oct 12 2020
  UC1299669  Sedum spathulifolium Freed W. Hoffman 1950-7-14 4010 Siskiyou Clear Creek trail from Baldy Lookout (western Siskiyou County); Clear Creek trail from Baldy Lookout Comment
  JEPS79405  Selaginella wallacei Edward Lee 1934-8-12 1044 Siskiyou between Hamburg and Seiad Valley (n side Klamath River near mouth of Walker Creek) 426 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
  CDA8581  Senecio aronicoides T. C. Fuller 1962-6-13 8974 Siskiyou Highway 89 to McCloud, 4.4 miles west of Bartle. 0 Comment
  RSA0013322  Senecio aronicoides Geo D. Butler 1909-5-30 760 Siskiyou Humbug Mountain. 1220 Comment
  CAS-BOT-BC363591  Senecio fremontii var. fremontii John Thomas Howell 1939-8-8 15158 Siskiyou Black Mt., Marble Mts. Comment
  JEPS37593  Senecio hydrophiloides Geo. D. Butler 1909-6-22 956 Siskiyou Goosenest Mt. Comment
  CHSC88130  Senecio hydrophilus Jenny Marr 1993-7-1 141 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC363934  Senecio integerrimus var. exaltatus Wm. Bridge Cooke 1938-9-8 11675 Siskiyou Mount Shasta. East fork of Panther Creek Comment
  CHSC88780  Senecio integerrimus var. exaltatus Jenny Marr 1993-7-1 195 Siskiyou Steamboat Mtn. Shasta Valley Wildlife Area, +/- 20 air miles S of Oregon border and 8 miles E of Yreka. Meadow. 701 Comment
  UC1234602  Senecio integerrimus var. exaltatus Peter H. Raven 1962-5-30 17899 Siskiyou 12.3 mi s MacDoel (U.S. Highway 97) Comment
  UC166169  Senecio integerrimus var. exaltatus Geo. D. Butler 1910-5-10 1332 Siskiyou Goosenest foothills Goosenest 1524 Comment
  CDA8647  Senecio integerrimus var. exaltatus T. C. Fuller 1962-6-12 8965 Siskiyou Road to Medicine Lake, ca. 3 miles southeast of Dorris. 0 Comment
  SD101076  Senecio integerrimus var. major Darley F. Howe 1977-6-29 Siskiyou Weaver Bally Road 1800 Comment
  UC163860  Senecio integerrimus var. major Geo. D. Butler 1910-6-5 1526 Siskiyou Log Lake Comment
  CAS-BOT-BC364419  Senecio triangularis K. T. Stillman 1976-9-9 472 Siskiyou Marble Mountain Wilderness Area. N & NE & E side of Black Mtn. Comment
  CAS-BOT-BC364424  Senecio triangularis John Thomas Howell 1937-7-22 13306 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC364439  Senecio triangularis Geo. D. Butler 1910-6-5 1486 Siskiyou Shackleford Creek Comment
  HSC69184  Senecio triangularis Maralyn A. Renner 1980-8-31 2636 Siskiyou Twin Valley. 1494 Comment
  HSC96401  Senecio triangularis Gordon Leppig, J. Kalt 1996-7-9 351 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  RSA261516  Senecio triangularis J. M. Tucker, D. V. Hemphill 1974-7-26 4290 Siskiyou Let-Er Buck Meadows, ca. 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1433 Comment
  HSC69336  Senecio triangularis John Palmer 1980-8-13 780 Siskiyou Dead Cow Creek, near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  HSC76958  Senecio triangularis K. T. Stillman 1976-9-9 472 Siskiyou Marble Mtn. Wilderness Area, N, NE and E side of Black Mtn. Comment
  UC922277  Senecio triangularis Annie M. Alexander and Louise Kellogg 1949-7-19 5809 Siskiyou creeks and edge Paradise Lake; Marble Mountains, Paradise Lake 1920 Comment
  JEPS68544  Setaria viridis Geo. D. Butler 1909-10-10 1091 Siskiyou Yreka, <Doonyard> Comment
  JEPS105035  Sidalcea glaucescens Dean W. Taylor 1996-7-7 15823 Siskiyou Scott Mountains; Highway 3 about 3 miles North of Scott Mountain Pass; Klamath National Forest 1402 Comment
  RSA211117  Sidalcea oregana subsp. oregana W. J. Ferlatte 1966-8-18 419 Siskiyou Along the South Fork of the Salmon River between the campground and Carter s. 1524 Comment
  OBI55470  Sidalcea oregana subsp. spicata David J. Keil, Kathleen Keil 1992-7-21 23535 Siskiyou Klamath Natl Forest SE of Callahan. Forest Rd 40N08, 1.7 mi W of Scott Mtn rd (hwy 3) Comment
  UC871508  Sidalcea oregana subsp. spicata Alice Eastwood 1921-7-28 10964 Siskiyou Medicine Lake Comment
  RSA95267  Sidalcea oregana subsp. spicata F. W. Peirson 1923-7-19 3779 Siskiyou Lairds Landing Comment
  JEPS94629  Silene antirrhina Vernon H. Oswald 1998-6-11 9180 Siskiyou on w side of Hwy 97 2.2 mi ne Lake Shastina-Big Springs Rd. (ne of Weed); Shasta NF plantation 1066 Comment
  SBBG2045  Silene bernardina H. and M. Dearing 1939-7-1 3787 Siskiyou Salmon Mtn 1828 Comment
  UC668092  Silene campanulata Joseph P. Tracy 1935-8-1 14421 Siskiyou 1 mi e Salmon Summit Mine (head of Knownothing Creek); , e of Salmon Summit Mine 1767 Comment
  HSC81676  Silene campanulata subsp. greenei Thomas W. Nelson, Jane P. Nelson 1980-7-21 6160 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  CAS-BOT-BC387059  Silene douglasii W. B. Cooke; V. G. Cooke 1965-7-12 35180 Siskiyou Bolam road, Mt Shasta 1524 Comment
  HSC19523  Silene douglasii J. O. Sawyer 1969-7-2 1032 Siskiyou NE facing slope near summit above Lipstick Lake 2226 Comment
  HSC58861  Silene grayi Marvin Butler 1971-7-11 92 Siskiyou Near Youngs Valley, close to the town of Cave Junction 1403 Comment
  UC1602154  Silene grayi Wm. M. Canby in company with Profs. C. S. Sargent and John Muir 1897-9-7 20 Siskiyou Mt. Shasta 2438 Comment
  HSC99987  Silene lemmonii Thomas W. Nelson 2005-7-16 9379 Siskiyou Along F. S. Rd. 42N16. 1337 Comment
  CAS-BOT-BC389529  Silene menziesii Geo. D. Butler 1910-6-4 1493 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC389534  Silene menziesii David D. Keck 1938-8-7 4853 Siskiyou Scott Mountain Lodge, 2 mi. E. of Callahan, on E. Fork of Scott River at junction with Mill Creek 1000 Comment
  HSC43826  Sisymbrium altissimum Maralyn O'Meara 1974-5-27 481 Siskiyou Along FS Rd. 47N03 1280 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
  UC1409318  Smilacina stellata Frederick W. Oettinger 1968-8-6 428 Siskiyou Hancock Lake Salmon Mountains, Marble Mountain Wilderness Area (se corner, high lake basins in vicinity of English Peak, w Siskiyou Co.) 1935 Comment
  JEPS107961  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
  HSC68273  Solanum parishii J. P. Smith, Steve Selva 1970-6-15 3968 Siskiyou 20 mi. E of Cecilville on the road to Callahan. 1646 Comment
  POM52743  Solidago canadensis subsp. elongata Geo D. Butler 1858 Siskiyou Oro Fino Comment
  HSC61978  Solidago multiradiata Al Hobart 25 Jul [year missing] Siskiyou Preston Peak 1982 Comment
  UC195207  Solidago multiradiata Annie M. Alexander and Louise Kellogg 1911-8-14 326 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC157322  Sorbus californica John Thomas Howell 1939-8-3 14979 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC18982  Sorbus scopulina J. O. Sawyer 1969-8-4 1896 Siskiyou Above S Sugar Lake 2043 Comment
  HSC29471  Sorbus scopulina Frederick W. Oettinger 1969-8-25 1556 Siskiyou High Lake Basins in the vicinity of English Peak, Marble Mtn. Wilderness Area; Little N Fork stream along new trail from end of logging road to Devils Canyon trail 1220 Comment
  UC1198763  Sorbus scopulina var. cascadensis Joseph P. Tracy 1935-8-1 14404 Siskiyou Rock Lake New River (between Salmon and; at extreme W. Fork of Knownothing Creek); Rock Lake, Knownothing Creek 1889 Comment
  UC813814  Sparganium emersum var. emersum John Thomas Howell 1939-8-9 15208 Siskiyou Sky High Valley; Marble Mts. Comment
  CAS-BOT-BC390716  Spergularia rubra A. A. Heller 1915-7-18 12126 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC390718  Spergularia rubra Doris K. Kildale 1928-7-4 5539 Siskiyou 1 1/2 miles east of summit of divide between Sawyers Bar & Etna Comment
  CAS-BOT-BC390720  Spergularia rubra Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Roger's Creek, Somes Bar Comment
  HSC34316  Sphenosciadium capitellatum J. P. Smith, J. O. Sawyer 1973-8-15 7330 Siskiyou Along Shakleford Creek 1524 Comment
  RSA105492  Spiraea densiflora var. splendens G. D. Barbe 1955-7-26 270 Siskiyou On northwest slope of Scott Mtn. near a dry ditch. 1829 Comment
  RSA472784  Spiraea douglasii Edwin Kline 1920-06 s.n. Siskiyou Siskiyou Mtns. Comment
  UC466728  Spiraea douglasii H. W. Furlong Sep 1901 Siskiyou Summit to Ager (No. California and So. Oregon) Comment
  UCD21462  Spiraea douglasii Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1202 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along shores of Gray Rock Lake. 1800 Comment
  CAS-BOT-BC149674  Spiraea douglasii W. R. Dudley 1901-8-25 s.n. Siskiyou 14 mile post, Salmon Creek, Salmon Mts. Comment
  CAS-BOT-BC152553  Spiraea splendens Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou West side of Gumboot Lake, Trinity Mts. 1828 Comment
  CAS-BOT-BC152557  Spiraea splendens Geo. D. Butler 1910-7-9 1710 Siskiyou Wooly Creek 1676 Comment
  HSC18898  Spiraea splendens var. splendens J. O. Sawyer 1968-7-23 596 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  HSC26908  Spiranthes romanzoffiana J. P. Smith, J. O. Sawyer 1971-9-17 4774 Siskiyou Little Duck Lake outlet Comment
  JEPS117252  Stachys palustris subsp. pilosa Lowell Ahart, John Dittes 2010-7-30 16948 Siskiyou In shallow water or on wet soil, on the south edge of the Shasta River, about 80 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) s 716 Comment
  HSC27981  Stachys pycnantha Carl W. Mize 1972-9-24 124 Siskiyou Along logging road 816 Comment
  HSC19087  Stellaria crispa J. O. Sawyer 1969-8-5 1766 Siskiyou W of Little Duck Lake 2073 Comment
  CAS-BOT-BC391219  Stellaria longipes subsp. longipes Alice Eastwood 1921-7-28 10876 Siskiyou Medicine Lake Comment
  RSA0018473  Stenanthium occidentale James R. Shevock 2012-7-21 40558 Siskiyou Along Forest Service Road 1055, 0.5 mile below Cook and Green Pass, Applegate River Drainage. 1433 Comment
  CAS-BOT-BC375750  Stephanomeria virgata L. R. Abrams 1927-9-11 12141 Siskiyou Fork of Shasta and Klamath Rivers Comment
  SEINET10603842  Stipa lemmonii Louis C. Wheeler 1935-5-11 Wheeler 3480 Siskiyou Siskiyou Mts., Mt. Diablo Mer. Klamath River at Ash Creek. Low , sunny, formerly wet site. 610 Comment
  HSC18975  Stipa occidentalis var. californica J. O. Sawyer 1969-7-19 1428 Siskiyou SW facing slope above Deacon Lee Trail 2180 Comment
  HSC19242  Stipa occidentalis var. californica J. O. Sawyer 1969-7-19 1427 Siskiyou SW facing slope above Deacon Lee Trail 2180 Comment
  HSC91042  Streptanthus barbatus Jennifer Whipple 1976-7-13 1460 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River. 2256 Comment
  HSC75346  Streptanthus barbatus J. O. Sawyer, M. Mesler 1980-8-10 4027 Siskiyou Just W of Carmen Lake 1585 Comment
  CAS-BOT-BC87855  Streptanthus tortuosus Lincoln Constance; Reed C. Rollins 1942-5-13 2901 Siskiyou Klamath River near Clear Creek, 8 miles south of Happy Camp. 304 Comment
  HSC589  Streptanthus tortuosus William J. Ferlatte 1967-8-23 1084 Siskiyou Head of Kidd Creek, E side of Black Mtn. 2378 Comment
  HSC591  Streptanthus tortuosus William J. Ferlatte 1966-6-22 79 Siskiyou Josephine Lake Basin 1677 Comment
  SFV1525  Streptanthus tortuosus J. Major 1961-7-14 636 Siskiyou Mount Shasta, Panther Creek. 1790 Comment
  HSC103548  Streptanthus tortuosus var. orbiculatus Thomas W. Nelson 2005-5-23 9315 Siskiyou Shoeinhorse Mountain, along Forest Service Road 11, at Deer Creek. 948 Comment
  UC117366  Streptanthus tortuosus var. orbiculatus Wm. M. Canby 1897-9-7 17 Siskiyou Mt. Shasta Comment
  HSC61929  Streptopus amplexifolius Ruby Van Deventer 14 Jul [year missing] Siskiyou Poker Flat 1585 Comment
  UC1312955  Streptopus amplexifolius var. americanus J. M. Tucker 1963-8-19 3771 Siskiyou headwaters of Canyon Creek; Marble Mountain Wilderness Area 1950 Comment
  CAS-BOT-BC245845  Symphoricarpos W. R. Dudley 1901-8-18 s.n. Siskiyou Jackson Lake, Salmon Mts. Comment
  CAS-BOT-BC269613  Symphoricarpos albus var. laevigatus L. R. Short 1933-6-15 37 Siskiyou Klamath National Forest. Clear Creek 640 Comment
  CAS-BOT-BC269617  Symphoricarpos albus var. laevigatus Marcus E. Jones 1931-7-17 29034 Siskiyou Shasta City (Sisson's) Comment
  RSA477512  Symphoricarpos albus var. laevigatus B. C. Templeton 1960-6-21 8525 -a Siskiyou Between California State line and the Agricultural Inspection Station. Comment
  HSC42903  Symphoricarpos mollis J. O. Sawyer, Ken Stillman 1976-5-28 2729 Siskiyou Along Rd. W of Sawyers Bar. 610 Comment
  LA204589  Symphoricarpos mollis Wm. Bridge Cooke; 1938-7-29 11383 Siskiyou Mount Shasta, near Howard Comment
  CAS-BOT-BC245769  Symphoricarpos rotundifolius Elmer I. Applegate 1935-6-10 9482 Siskiyou North slope of Caldwell Butte, Lava Beds National Monument Comment
  CAS-BOT-BC97579  Symphyotrichum ascendens W. R. Dudley 1899-8-13 s.n. Siskiyou Near Nabar Meadows Comment
  HSC58870  Symphyotrichum bracteolatum Marvin Butler 1971-8-11 308 Siskiyou Near Youngs Valley, close to the town of Cave Junction 1403 Comment
  UC223707  Symphyotrichum bracteolatum Elmer I. Applegate 1923-9-7 3970 Siskiyou Doggett Creek 1737 Comment
  CAS-BOT-BC97873  Symphyotrichum eatonii Geo. D. Butler 1910-8-13 1829 Siskiyou Quartz Valley Comment
  CAS-BOT-BC97871  Symphyotrichum eatonii Geo. D. Butler 1908-8-11 292 Siskiyou near Oro Fino Comment
  CAS-BOT-BC98434  Symphyotrichum spathulatum Doris K. Kildale 1929-8-24 9025 Siskiyou Rattlesnake Meadow, Preston Peak 1676 Comment
  UC135424  Symphyotrichum spathulatum C. F. Baker 1903-9-8 3856 Siskiyou Mt. Eddy Comment
  UC163871  Taraxacum officinale Geo. D. Butler 1908-8-28 982 Siskiyou near Oro Fino Comment
  CAS-BOT-BC376922  Taraxacum officinale John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53404 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  UCD107056  Taraxia tanacetifolia J. P. Smith; Steve Selva 1970-8-9 4586 Siskiyou Roadside by Grass Lake. Comment
  RSA86350  Taxus brevifolia F. W. Peirson 1926-7-11 7027 Siskiyou Salmon River at Cow Creek Comment
  CAS-BOT-BC88066  Thelypodium brachycarpum A. A. Heller 1927-8-2 14441 Siskiyou North end of Shasta Valley, near the Klamath River. Comment
  UC221543  Thelypodium brachycarpum H. E. Brown Jun 15 1897-Jun 30 1897 469 Siskiyou n side Mt. Shasta 1524 Comment
  CAS-BOT-BC77738  Thelypteris nevadensis Louis C. Wheeler 1934-8-21 3191 Siskiyou E Fork Horse Cr., Klamath National Forest 1219 Comment
  MACF002236  Thelypteris nevadensis Donald L. Branscomb 1958-7-29 27256 Siskiyou Castle Lake Comment
  UC1483564  Thlaspi montanum var. montanum Maralyn A. Renner 1980-6-26 1153 Siskiyou Flint Valley , Dillon Mtn. Quad., Flint Valley (Klamath National Forest) 1389 Comment
  UC165981  Thlaspi montanum var. montanum Geo. D. Butler 1908-6-27 119 Siskiyou Forest House Mountain Comment
  HSC36779  Thysanocarpus curvipes J. P. Smith 1974-5-25 7403 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC165985  Thysanocarpus curvipes Geo. D. Butler 1910-4-25 1241 1/2 Siskiyou Oro Fino; fields Comment
  CAS-BOT-BC447585  Tiarella trifoliata var. unifoliata Doris K. Kildale 1929-7-21 8736 Siskiyou Elk Lick, s. fork of Indian Creek 1219 Comment
  HSC64858  Tiarella trifoliata var. unifoliata J. P. Smith, Steve Selva 1970-7-15 4342 Siskiyou Klamath National Forest, road to Happy Camp. 732 Comment
  POM169142  Tofieldia glutinosa subsp. occidentalis E. B. Copeland 1903-9-7 3864 Siskiyou Mt. Eddy 2439 Comment
  HSC69543  Tolmiea diplomenziesii Maralyn A. Renner 1980-8-6 2242 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  RSA126259  Tolmiea menziesii I. L. Wiggins 1955-7-24 13501 Siskiyou Trail at crossing of China Creek, above diversion dam. 1302 Comment
  JEPS31007  Tonella tenella D. E. Breedlove 1962-6-10 3283 Siskiyou 22.0 mi nw Happy Camp (on sw slope of Little Grayback Mountain, along Indian Creek Road from O'Brien to Happy Camp); Siskiyou Mountains, Little Grayback Mountain 1524 Comment
  JEPS9889  Tonella tenella Geo. D. Butler 1909-4-18 626 Siskiyou near Yreka Comment
  CAS-BOT-BC169257  Toxicodendron diversilobum L. R. Abrams 1922-8-6 9900 Siskiyou Klamath River 6 mi. below Hornbrook C. Comment
  CHSC91339  Tragopogon dubius Lowell Ahart; John Dittes 2005-6-9 12049 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
  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
  UC163882  Tragopogon porrifolius Geo. D. Butler 1909-6-4 979 Siskiyou 1 mi n Yreka Comment
  JEPS82737  Trautvetteria caroliniensis var. occidentalis Wayne Roderick 1983-7-10 Siskiyou Doe Flat 1143 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
  RSA390085  Tribulus terrestris Louis C. Wheeler 1934-9-22 3291 Siskiyou Walker, Klamath River, Siskiyou Mountains. (Mt. Diablo Mer.) 518 Comment
  JEPS24009  Trichostema simulatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6870 Siskiyou about 3 mi n (below) Scott Mtn. (road summit, on road to Callahan) 1219 Comment
  HSC68358  Trientalis latifolia J. P. Smith 1973-5-5 6508 Siskiyou Along Cook and Green Pass Rd. Comment
  POM28069  Trifolium cyathiferum Geo. D. Butler 1910-6-3 1473 Siskiyou Quartz Valley. Comment
  CHSC88102  Trifolium eriocephalum subsp. eriocephalum Jenny Marr 1993-7-1 112 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC62272  Trifolium howellii Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  UC1607584  Trifolium longipes Barbara Ertter 1990-7-14 9314 Siskiyou ca 4 air mi due w Mt. Shasta City (at end of FR 41N53 ca 1 mi n of Morgan Meadows); east side of Mt. Eddy; w center Comment
  JEPS87958  Trifolium longipes subsp. oreganum Barbara Ertter 1990-7-16 9376 Siskiyou NW side of Mt. Eddy ca 8 air miles SW of Weed, ca. 1-2 mi from Parks Creek trailhead(=crest of Rte 17). 2286 Comment
  UC163875  Trifolium obtusiflorum Geo. D. Butler 1909-6-20 914 Siskiyou near Yreka Comment
  SBBG15604  Trifolium pratense D. Myrick 1961-6-20 276 Siskiyou near Mt Shasta City 1066 Comment
  HSC19001  Trifolium productum J. O. Sawyer 1969-7-24 1193 Siskiyou NE facing slope above Sugar Lake 1784 Comment
  UCD109300  Trifolium productum A. H. Murphy 1958-8-7 58 N Siskiyou Deep Lake, Marble Mts. 1889 Comment
  UC726660  Trifolium repens A. A. Heller 1916-6-20 12414 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  RSA183661  Trifolium repens Gilbert Muth 1965-8-16 229 Siskiyou Marble Valley Guard Station, Marble Mountains Comment
  UC144271  Trifolium variegatum var. melananthum A. A. Heller 1905-6-5 7964 Siskiyou between Shasta Retreat and Shasta Springs Comment
  UC630703  Trifolium wormskioldii A. A. Heller 1919-6-25 13285 Siskiyou Compton's Prairie se base of Mt. Eddy 1158 Comment
  SEINET3151091  Triglochin maritima G. D. Butler 1910-8-21 1846 Siskiyou Shasta Valley Comment
  UC164381  Trillium albidum Geo. D. Butler 1910-4-25 1242 Siskiyou Scott R. Comment
  JEPS80494  Trillium chloropetalum Gilbert Muth 1966-7-8 376 Siskiyou Marble Valley Marble Mt. Wilderness Area, Marble Valley 1792 Comment
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  UC1483575  Trillium ovatum Maralyn A. Renner 1980-6-26 1180 Siskiyou n. edge Flint Valley; Klamath Nat'l Forest, Dillon Mt. Quad, Flint Valley 1389 Comment
  UCD139915  Trillium ovatum J. M. Tucker; L. K. Mann, Sandra Holloway 1963-7-7 3718 Siskiyou Paradise Lake, at the base of Kings Castle on the east side, Marble Mountain Wilderness Area. 1981 Comment
  CAS-BOT-BC200094  Trisetum canescens John Thomas Howell 1939-8-2 14922 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC133482  Triteleia crocea L. B. Kildale 1930-6-1 9831 Siskiyou Mill Creek near Etna Mills Comment
  CAS-BOT-BC133489  Triteleia crocea A. M. Vollmer; L. Beane 1951-6-2 51 Siskiyou Road between Streamline Lodge & Deer Camp, n. of Klamath River Highway Comment
  UC593508  Triteleia crocea E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1920 Siskiyou s highway from Yreka to Fort Jones (about 7 mi sw of Yreka); Forest House Mt. 415 Comment
  UC1409324  Triteleia hyacinthina Frederick W. Oettinger 1969-8-18 1415 Siskiyou along trail to Horse Range Lake (vicinity English Peak, western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1767 Comment
  UC1026905  Triteleia ixioides subsp. anilina R. F. Hoover 1940-6-6 15083 Siskiyou along Castle Lake Road 1219 Comment
  LA21975  Triteleia ixioides subsp. anilina Mary V. Hood; 1940-6-6 15083 Siskiyou Klamath Mountains, Castle Lake Road Comment
  UC630403  Tsuga mertensiana Annetta Carter 1939-8-21 1465 Siskiyou 12 mi sw of Etna (above se end of Taylor Lake, on coarse talus slope); Salmon Mountains 2072 Comment
  CAS-BOT-BC80248  Tsuga mertensiana subsp. grandicona Annetta Carter 1939-8-21 1465 Siskiyou above southeast end of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2072 Comment
  CAS-BOT-BC80252  Tsuga mertensiana subsp. grandicona Ira L. Wiggins 1955-7-27 13566 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC91273  Umbellularia californica Berta B. Kessel 1959-10-24 s.n. Siskiyou Pick-a-wish Forest Camp, about 8 miles south of Happy Camp. Comment
  UC719049  Umbellularia californica F. G. Meyer 1938-4-3 1328 Siskiyou 20 mi n of Redding 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
  POM117669  Urtica dioica subsp. holosericea Geo. D. Butler 1910-6-30 1616 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC199195  Vaccinium cespitosum W. R. Dudley 1905-8-4 s.n. Siskiyou Foot of Mt Eddy Comment
  CHSC71580  Vaccinium cespitosum Vernon H. Oswald; Lowell Ahart 1998-8-3 9454 Siskiyou East end of Rock Fence Lake Rd. (USFS 41N18) in the Scott Mtns. east of Kangaroo Lake. Near Rock Fence Creek. 1920 Comment
  HSC19519  Vaccinium cespitosum J. O. Sawyer 1969-7-7 1068 Siskiyou NE facing lower slope above Little Duck Lake 2049 Comment
  UCD118054  Vaccinium cespitosum R. Tofsrud; J. M. Tucker 1948-8-2 1766 Siskiyou Panther Meadows, south slope of Mt. Shasta. 2407 Comment
  CAS-BOT-BC199227  Vaccinium membranaceum Doris K. Kildale 1929-7-20 8592 Siskiyou East spur of Preston Peak above Rockefeller Lake 2133 Comment
  HSC48293  Vaccinium membranaceum J. O. Sawyer, K. Stillman 1978-7-6 3349 Siskiyou Along Happy Camp - O'Brien Rd., above Louse Creek. Comment
  SEINET11971724  Vaccinium membranaceum H. P. Chandler 1901-1 1577 Siskiyou near Marble Mountain 2134 Comment
  CAS-BOT-BC199479  Vaccinium parvifolium Doris K. Kildale 1929-7-20 8725 Siskiyou Trail from Elk Lick to Raspberry Lake, Indian Creek 1828 Comment
  HSC69742  Vaccinium parvifolium Maralyn A. Renner 1980-6-26 1274 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  CAS-BOT-BC199486  Vaccinium scoparium Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Margin of Cedar Lake, Trinity Mts. 1828 Comment
  CAS-BOT-BC199488  Vaccinium scoparium Wayne Roderick 1967-9-1 s.n. Siskiyou Between Cedar and Cliff lakes 1828 Comment
  CAS-BOT-BC199530  Vaccinium uliginosum Wm. Bridge Cooke 1939-7-7 13606 Siskiyou At Wagon Camp Comment
  CAS-BOT-BC199528  Vaccinium uliginosum W. R. Dudley 1899-8-13 s.n. Siskiyou Nabar and Warm Castle, near McCloud Comment
  SD219128  Valeriana sitchensis R. F. Thorne, Frederick W. Oettinger 1969-8-4 63361 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 1935 Comment
  CAS-BOT-BC76063  Vancouveria hexandra Edward Lee 1934-8-13 1083 Siskiyou Watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest. 1463 Comment
  RSA438027  Vancouveria hexandra Edwin Kline 1920-6-24 s.n. Siskiyou Siskiyou Mts. Comment
  UC1409394  Vancouveria hexandra Frederick W. Oettinger and R. F. Thorne 1969-8-6 1232 Siskiyou nw Pine Lake (high lake basins in vicinity of English Peak, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  CHSC111071  Veratrum californicum Barbara L. Wilson; Julie K. Nelson 2011-8-22 16854 Siskiyou Meadow on a tributary of the Middle Fork Sacramento River at the end of Forest Service road 40N64A. 1969 Comment
  RSA12629  Veratrum californicum Carl B. Wolf 1934-7-4 5956 Siskiyou 6.8 miles from Dry Lake lookout on road to Horse Creek, Siskiyou Mountains. 1829 Comment
  HSC60768  Veratrum californicum var. californicum Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  JEPS24441  Veratrum insolitum Rimo Bacigalupi with L. Constance and L. R. Heckard 1960-7-21 7483 Siskiyou 14 mi e Cecilville (6 mi w of rd summit, along new rd from Cecilville to Callahan, watershed of e fork of the South Fork of the Salmon River, just above Six-mile Creek) 1371 Comment
  UC1190161  Veratrum insolitum Ira L. Wiggins 1955-7-24 13484 Siskiyou ridge between upper reaches of China Creek and Blind Horse Creek 1280 Comment