Search Results — 2000 specimen records retrieved (1389 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
  HSC44740  Abies X shastensis Maralyn O'Meara 1974-5-25 397 Siskiyou Along road to Duck Lakes trail 1402 Comment
  CAS-BOT-BC73508  Abies concolor Doris K. Kildale 1929-4-27 7481 Siskiyou Cecilville Comment
  HSC100315  Abies concolor G. L. Clifton, Griswold 1979-6-28 6127 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  HSC69329  Abies concolor John Palmer 1980-8-12 749 Siskiyou Road to Bearground Spring from Beaver Creek Rd. 1341 Comment
  HSC69559  Abies concolor Maralyn A. Renner 1980-8-6 2290 Siskiyou Along trail, 0.5 mi. SE of Cyclone Gap. 1585 Comment
  HSC4983  Abies lasiocarpa J. O. Sawyer 1968-7-9 430 Siskiyou W of Little Duck Lake. 1936 Comment
  HSC66074  Abies lasiocarpa Timothy B. Devine 1976-10-23 364 Siskiyou NW side of little Duck Lake 2043 Comment
  JEPS88680  Abies lasiocarpa var. lasiocarpa Donald V. Hemphill 1971-8-16 Siskiyou Deep Lake-Second Valley Trail Klamath National Forest, Scott Bar. Quad. 2194 Comment
  RSA12616  Abies magnifica C. B. Wolf 1934-7-5 5969 Siskiyou Siskiyou Mountains; 2 8/10 miles from Dry Lake Lookout on road to Horse Creek. 2134 Comment
  SEINET5643775  Acer circinatum Alv Dan Youngberg 1964-7-20 78 Siskiyou Growing in canyon bottom of East Fork of Indian Creek.; 0 610 Comment
  CAS-BOT-BC331043  Acer glabrum var. glabrum Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Shackleford Trail below Bull Meadow Comment
  CHSC92  Acer glabrum var. torreyi M. Yoder 1941-6-28 Siskiyou Castle Lake 1828 Comment
  SEINET12765788  Acer glabrum var. torreyi Mary Merello, H. H. Schmidt; L. Woodruff 1993-6-22 690 Siskiyou Sasta National Forest outside of Mt. Shasta City. Along Forest Service Road 26 to Lake Siskiyou.; 0 1090 Comment
  CAS-BOT-BC332782  Acer macrophyllum Carl B. Wolf 1927-8-26 1037 Siskiyou On the Klamath River, 4 mi N of Gottville Comment
  CAS-BOT-BC332787  Acer macrophyllum Alice Eastwood 1912-7-23 1343 Siskiyou Cantara Comment
  CAS-BOT-BC30429  Achillea millefolium John Thomas Howell 1939-8-6 15093 Siskiyou Spirit Lake, Marble Mountains 1828 Comment
  CAS-BOT-BC30439  Achillea millefolium A. A. Heller 1915-7-18 12127 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CHSC3385  Achillea millefolium Alice L. Stoll 1966-5-14 194 Siskiyou Along roadside 2 miles S.E. of Callahan on the Old Oregon Stage Road. Comment
  HSC92338  Achillea millefolium Jennifer Whipple 1976-6-30 1198 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  UC642533  Achillea millefolium D. D. Keck 1939-8-10 13873 Siskiyou w bank Mud Creek Canyon; Mount Shasta 2895 Comment
  UCSB6310  Achillea millefolium Phillips, Priscilla 1960-6-13 Siskiyou Rt. 97, 11 miles north of Weed, lowers slopes of Mt. Shasta 1097 Comment
  CAS-BOT-BC18874  Achillea millefolium Elmer I. Applegate 1935-6-6 9353 Siskiyou Near and south of Indian Well, Lava Beds National Monument Comment
  CAS-BOT-BC30426  Achillea millefolium Alice Eastwood 1921-7-25 10839 Siskiyou Bigelowe, McCloud River Comment
  CAS-BOT-BC30436  Achillea millefolium Carl B. Wolf 1927-8-26 1093 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  SD113039  Achillea millefolium Darley F. Howe 1979-6-26 Siskiyou Military Pass Road, 6 miles southeast of #97. 185 Comment
  JEPS46215  Achlys triphylla subsp. triphylla A. E. Wieslander 1928-6-14 Siskiyou Cedar Camp Comment
  UCD50944  Achnatherum occidentale A. H. Murphy 1955-7-29 55 Q Siskiyou Klamath National Forest, Marble Mountains, Clear Lake. 1798 Comment
  JEPS72980  Achnatherum occidentale subsp. californicum W. L. Jepson 1940-6-30 20072 Siskiyou 6 mi e McCloud (Fowlers Camp); McCloud River 944 Comment
  RSA135723  Achnatherum occidentale subsp. californicum H. A. Thomas, John H. Thomas 1954-7-24 4513 Siskiyou Salmon-Trinity Mts. Vicinty of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville. 1829 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
  CDA28112  Achnatherum occidentale subsp. pubescens Don Shaw 1973-7-26 Siskiyou MCloud, Hearst Estates in orchard. 0 Comment
  UCD51181  Achnatherum occidentale subsp. pubescens Mr. Roseman 1913-1 7 Siskiyou Butte Valley. Comment
  UC1100443  Achnatherum thurberianum Verne Grant and Irving Schneider 1947-8-26 8298 Siskiyou Lava Beds National Monument Comment
  UCD103801  Acmispon americanus var. americanus A. A. Heller 1915-7-18 12110 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1188 Comment
  CHSC96730  Aconitum columbianum Gordon Leppig; Jennifer Kalt 1996-7-9 370 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen. Subalpine fen in cirque west of Little Duck Lake. NAD 27 UTM Zone 10, 503813E, 4572466N. 2200 Comment
  UC375344  Aconitum columbianum Geo. D. Butler 1909-7-20 1064 Siskiyou Highland Mine Comment
  CAS-BOT-BC391521  Aconitum columbianum subsp. columbianum Alice Eastwood 1917-9-2 6640 Siskiyou Shasta Springs Comment
  RSA211130  Aconitum columbianum var. columbianum William J. Ferlatte 1966-8-3 291 Siskiyou Josephine Lake basin. 1677 Comment
  CAS-BOT-BC412616  Aconogonon alaskanum Doris K. Kildale 1929-8-24 9038 Siskiyou Rattlesnake Meadow, trail to Preston Peak 1676 Comment
  CAS-BOT-BC413840  Aconogonon davisiae Wm. Bridge Cooke 1938-7-21 11289 Siskiyou Mount Shasta. Between Horse Camp and Panther Creek Meadows Comment
  HSC101501  Aconogonon phytolaccifolium J. P. Smith, J. O. Sawyer 2011-7-21 13030 Siskiyou Flint Valley at the end of the G-O Road. 1313 Comment
  SEINET10928998  Actaea rubra H. E. Brown 1897-8-1 Brown 583 Siskiyou 1524 Comment
  HSC4991  Adenocaulon bicolor J. O. Sawyer 1968-7-10 459 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  CAS-BOT-BC29318  Adenocaulon bicolor L. E. Smith 1913-7-1 428 Siskiyou Dunsmuir Comment
  CHSC71558  Adiantum aleuticum Vernon H. Oswald; Lowell Ahart 1998-8-3 9452 Siskiyou East end of Rock Fence Lake Rd. (USFS 41N18) in the Scott Mtns. East of Kangaroo Lake. 1920 Comment
  UC1483405  Adiantum aleuticum Maralyn A. Renner 1980-6-24 1005 Siskiyou tributary stream to East Fork Seiad Creek (where crossed by FS Rd 48N20); Klamath Nat'l Forest, Seiad Valley Quadrangle 1021 Comment
  CDA1642  Aegilops cylindrica T. C. Fuller 1970-5-26 19582 Siskiyou Montague 0 Comment
  RSA0003895  Agastache parvifolia Alice Eastwood, J. T. Howell 1940-6-14 8266 Siskiyou Lava Beds National Mon. near Schonchin Butte Comment
  HSC2395  Agastache urticifolia William J. Ferlatte 1966-8-18 425 Siskiyou Willow Creek Trail. 1707 Comment
  HSC4988  Agastache urticifolia J. O. Sawyer 1968-7-23 604 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake, Brown's Meadow 1829 Comment
  RSA238533  Agastache urticifolia Frederick W. Oettinger 1969-7-31 1117 Siskiyou E-facing slope, due NWW. of English Lake outlet. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC29446  Ageratina occidentalis John Thomas Howell 1939-8-2 14893 Siskiyou Spirit Lake, Marble Mountains 1828 Comment
  CAS-BOT-BC29449  Ageratina occidentalis Louis C. Wheeler 1934-8-9 3070 Siskiyou Dead Cow Creek, Klamath National Forest 1981 Comment
  UC163886  Agoseris X dasycarpa Geo. D. Butler 1910-6-19 1589 Siskiyou Goosenest, foothills of Goosenest 1524 Comment
  UC75800  Agoseris X dasycarpa Milo S. Baker 1897-8-1 154 Siskiyou top Medicine Lake Mts. 2438 Comment
  CAS-BOT-BC15478  Agoseris X dasycarpa Elmer I. Applegate 1923-8-17 3845 Siskiyou West side of Medicine Lake Comment
  JEPS97916  Agoseris aurantiaca var. aurantiaca R. Raiche, H. Forbes, K Zadnik 1989-4-10 61 Siskiyou W of Weed, 5.4 km. on Parks Creek Rd. toward Mt. Eddy from Stewart Springs Rd. 1506 Comment
  CHSC98747  Agoseris glauca var. monticola L. P. Janeway; B. Castro 2007-7-29 9139 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2067 Comment
  UC682100  Agoseris grandiflora var. grandiflora G. L. Stebbins Jr. with A. A. Beetle 1942-5-30 3260 Siskiyou 3 mi s Yreka 810 Comment
  HSC68072  Agoseris heterophylla J. P. Smith 1973-5-5 6563 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC13189  Agoseris monticola Wm. Bridge Cooke 1938-9-8 11643 Siskiyou Near the South Gate Springs, Mount Shasta 2499 Comment
  CAS-BOT-BC126986  Agrostis exarata Louis C. Wheeler 1934-7-2 2843 Siskiyou Klamath Forest. Little Smoky Creek. 1280 Comment
  CAS-BOT-BC126995  Agrostis exarata Louis C. Wheeler 1934-7-2 2843 Siskiyou Siskiyou Mountains. Little Smoky Creek, Sterling Mountain. 1280 Comment
  UCD52402  Agrostis exarata E. Wilson 1934-7-1 s.n. Siskiyou Shasta Springs. Comment
  HSC30639  Agrostis idahoensis Frederick W. Oettinger 1968-9-7 765 Siskiyou Marble Mtn. Wilderness Area, around Tobacco Lake 1890 Comment
  UC1265418  Agrostis pallens F. W. Oettinger 1969-8-16 1390 b Siskiyou rocky slope near wiregrass meadow near Upper English Lake; Salmon Mountains 1767 Comment
  RSA603995  Agrostis pallens L. C. Wheeler 1934-8-2 3020 Siskiyou Siskiyou Mountains: Head of Jaynes Canyon. (Mt Diablo Meridian) 2072 Comment
  HSC41132  Agrostis stolonifera J. P. Smith, Steve Selva 1970-8-8 4554 Siskiyou Juanita Lake 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
  UC1265417  Agrostis thurberiana Frederick W. Oettinger 1969-8-22 1503 Siskiyou near Horse Range Lake (on s side of Horse Hole, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1859 Comment
  UC1108542  Agrostis variabilis Ira L. Wiggins 1955-7-27 13530 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  CAS-BOT-BC138356  Aira caryophyllea var. caryophyllea J. H. Thomas 1954-5-13 4148 A Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. Along Rush Creek. 1127 Comment
  UC814485  Alisma plantago-aquatica Alice Eastwood 1912-7-17 1195 Siskiyou Sisson Comment
  CAS-BOT-BC459429  Allium acuminatum Lillian Mott 1976-7-4 20 LM76 Siskiyou Cook and Green Pass Road north of Seiad Valley at waterfall 1463 Comment
  UCD138438  Allium acuminatum Robert E. Preston 1995-6-18 879 Siskiyou ca. 3 mi ese of Hornbrook, in oak woodland adjacent to Ager Rd; (Copco 15' quad). 701 Comment
  CAS-BOT-BC462992  Allium bolanderi Geo. D. Butler 1908-6-29 113 Siskiyou Near Oro Fino Comment
  CDA18413  Allium falcifolium G. D. Barbe, T. C. Fuller & J. T. Howell 1980-4-29 2652 Siskiyou Klamath Ranges; Schoolhouse Hill, summit of Gazelle-Callahan Road, 7 miles (11.3 km) east of Callahan. 1173 Comment
  CAS-BOT-BC474037  Allium parvum M. S. Taylor; J. Prouty 1980-6-25 2963 Siskiyou Grizzly Peak and western ridge. 5 mi due e of Lake McCloud 1889 Comment
  HSC69158  Allium validum Maralyn A. Renner 1980-8-4 2210 Siskiyou Flint Valley 1390 Comment
  CAS-BOT-BC478036  Allium validum John Thomas Howell 1939-8-3 14948 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC171398  Alnus incana subsp. tenuifolia L. E. Smith 1914-6-24 719 Siskiyou Sisson Comment
  CAS-BOT-BC171402  Alnus incana subsp. tenuifolia Elmer I. Applegate 1923-9-7 3972 Siskiyou Doggett Ridge, near head of Doggett Creek, S slope of the Siskiyou Mountains 1524 Comment
  CAS-BOT-BC171407  Alnus incana subsp. tenuifolia C. B. Wolf 1930-10-22 1752 Siskiyou 1 miles W of Mt. Shasta City 1066 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
  HSC42237  Alnus viridis subsp. sinuata R. J. Mastrogiuseppe, J. D. Mastrogiuseppe 1974-9-2 159 Siskiyou On both sides of Kidd Creek Comment
  HSC4970  Alnus viridis subsp. sinuata J. O. Sawyer 1968-6-18 192 Siskiyou Above S Russian Creek on W side. 1463 Comment
  RSA238550  Alnus viridis subsp. sinuata Frederick W. Oettinger 1968-9-8 779 Siskiyou The Salmon Mountains, in the vicinity of English Peak, Marble Mountains Wilderness Area, around the outlet stream of English Lake. 1753 Comment
  UC141954  Alnus viridis subsp. sinuata Harley P. Chandler Jun 1901 1618 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  HSC2197  Alopecurus aequalis L. C. Wheeler 1934-6-26 2795 Siskiyou Cottonwood Creek 838 Comment
  CAS-BOT-BC138104  Alopecurus aequalis var. aequalis Louis C. Wheeler 1934-6-26 2795 Siskiyou Siskiyou Mountains. Cottonwood Creek. 838 Comment
  CDA3624  Alyssum alyssoides Vernon H. Oswald & Lowell Ahart 1998-6-11 9178 Siskiyou Shasta National Forest plantation on the west side of Hwy. 97 2.2 miles northeast of Lake Shastina-Big Springs Rd., northeast of Weed. Comment
  UC375334  Alyssum alyssoides Geo. D. Butler 1910-5-7 1304 Siskiyou Yreka Comment
  UCR19354  Alyssum alyssoides Edwin Kline 1920-6-24 s.n. Siskiyou [no specific locality] 1067 Comment
Read comments
Sep 26 2018
  CDA3623  Alyssum alyssoides F. D. Horn 1980-4-24 Siskiyou Williams Creek near Collier Rest Area, I-5 near Hornbrook. 0 Comment
  CAS-BOT-BC142918  Amelanchier Doris K. Kildale 1929-5-31 9122 Siskiyou Cecilville, South Fork of Salmon River Comment
  HSC69124  Amelanchier alnifolia Maralyn A. Renner 1980-8-7 2384 Siskiyou Klamath National Forest, NW flank of Preston Peak, near summit 2180 Comment
  HSC69139  Amelanchier alnifolia Maralyn A. Renner 1980-8-8 2478 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  CAS-BOT-BC136717  Amelanchier alnifolia var. pumila Donald Myrick 1961-6-20 279 Siskiyou On road to Bear Springs east of Mt. Shasta City Comment
  HSC22281  Amelanchier alnifolia var. semiintegrifolia J. O. Sawyer 1969-7-3 1046 Siskiyou Above Lipstick Lake 1951 Comment
  HSC4956  Amelanchier pallida J. O. Sawyer 1968-9-9 657 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  RSA68857  Amelanchier pallida A. E. Culbertson 1943-6-26 99 Siskiyou Castle Lake, 5434', in a north facing cirque with an abrupt 1000' backwall; 14 miles s.w. of Mt. Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. Comment
  SEINET10736916 Image available Amelanchier pallida Cyrus G. Pringle 1882-9-5 Pringle 14506 Siskiyou 1829 Comment
  CAS-BOT-BC136878  Amelanchier utahensis A. A. Heller 1927-5-14 s.n. Siskiyou Along the Pacific Highway near Gazelle on the edge of the Shasta Valley Comment
  CAS-BOT-BC136883  Amelanchier utahensis T. H. Harris 1951-6-1 s.n. Siskiyou Happy Camp 1432 Comment
  CAS-BOT-BC136891  Amelanchier utahensis A. A. Heller 1905-6-9 8003 Siskiyou On the hills just east of Yreka Comment
  CAS-BOT-BC136911  Amelanchier utahensis Philip A. Munz 1949-5-18 13308 Siskiyou 14 miles southwest of Gazelle on Callahan road 1463 Comment
  CAS-BOT-BC45211  Anaphalis margaritacea A. A. Heller 1915-8-26 12247 Siskiyou Wagon Creek at the foot of Mt. Eddy 1127 Comment
  UC642540  Anaphalis margaritacea W. B. Cooke 1939-8-10 13863 Siskiyou Mud Creek Canyon; Mount Shasta 2133 Comment
  CAS-BOT-BC391756  Anemone Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  CHSC95118  Anemone deltoidea L. P. Janeway 2006-7-2 8745 Siskiyou Klamath Ranges. Salmon Mountains; un-named creek at the sharp bend in the Music Creek Trailhead Road, 0.6 km south of Music Creek. North-facing slope just above the creek. 1762 Comment
  HSC39  Anemone deltoidea William J. Ferlatte 1966-6-23 135 Siskiyou Along the Yellow Rose Mine Trail. 1677 Comment
  HSC58917  Anemone deltoidea Marvin Butler 1971-7-11 97 Siskiyou Near Bell Echo Camp 1403 Comment
  HSC61856  Anemone deltoidea Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  JEPS60505  Anemone deltoidea W. L. Jepson 1907-7-6 2848 Siskiyou near Marble Mtn (ridge near Budahay Valley); Marble Mtn Region Comment
  UC1258456  Anemone deltoidea Maralyn A. Renner 1980-7-14 1717 Siskiyou headwaters Etna Creek (near rd at switchback); Klamath National Forest, headwaters of Etna Creek 1706 Comment
  UC1409280  Anemone deltoidea Frederick W. Oettinger 1968-8-6 427 Siskiyou se corner Hancock Lake (Salmon Mtns, w Siskiyou Co., vicinity of English Pk); Salmon Mtns, Marble Mtn Wilderness Area 1935 Comment
  UC8882  Anemone deltoidea Harley P. Chandler Jun 1901 1554 Siskiyou near Marble Mtn (ridges and meadows); North Coast Ranges 1828 Comment
  CAS-BOT-BC391798  Anemone deltoidea Gilbert Muth 1965-8-3 s.n. Siskiyou Pothole in Marble, Marble Valley Comment
  CAS-BOT-BC391854  Anemone drummondii A. A. Heller 1915-7-15 12082 Siskiyou Mt. Eddy 2072 Comment
  CAS-BOT-BC391859  Anemone drummondii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou West side of Gumboot Lake, Trinity Mts. 1828 Comment
  UCR52382  Anemone drummondii R. James, S. Matthews, M. Goering 1985-6-1 138 Siskiyou Scott Mountain road about 2-3 miles from summit 1405 Comment
  POM100562  Anemone drummondii Geo. D. Butler 1908-8-5 45 Siskiyou Marble Mtn Comment
  HSC77116  Anemone multifida var. multifida K. T. Stillman 1976-6-25 64 Siskiyou Marble Mtn. Wilderness Area 2073 Comment
  CAS-BOT-BC391977  Anemone occidentalis J. P. Smith; J. O. Sawyer 1973-8-14 7321 Siskiyou Hillside west of Cliff Lake 1981 Comment
  UC853596  Anemone occidentalis L. E. Smith Siskiyou Mt. Shasta Comment
  CAS-BOT-BC391965  Anemone occidentalis M. B. Dunkle 1945-7-19 9231 Siskiyou Klamath Natl. Forest, Marble Mts. Sky-High Bluffs Comment
  CAS-BOT-BC391972  Anemone occidentalis Wm. Bridge Cooke 1938-7-21 11303 Siskiyou Mount Shasta. South of Horse Camp Comment
  RSA142621  Anemone occidentalis P. A. Munz 1960-8-22 24184 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  UC8953  Anemone oregana Harley P. Chandler Jun 1901 1551 Siskiyou ridges and meadows near Marble Mtn; North Coast Ranges 1828 Comment
  JEPS33946  Antennaria argentea W. L. Jepson 1937-7-23 18462 Siskiyou Yreka Comment
  UC221516  Antennaria argentea H. E. Brown Jun 1 1897-Jun 10 1897 297 Siskiyou near Sisson 1083 Comment
  UC54134  Antennaria dimorpha H. M. Hall and E. B. Babcock 1903-6-16 4101 Siskiyou Little Shasta Valley Sierra Nevada Mountains, Mount Shasta 853 Comment
  CHSC30243  Antennaria geyeri M. S. Taylor; J. Prouty, E. Heinitz 1980-8-18 3263 Siskiyou Little Mt. Hoffman, W side, between road and lookout. 2225 Comment
  RSA238725  Antennaria media Frederick W. Oettinger 1969-7-14 1016 Siskiyou Between Charmaine Lake and Abbot's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  HSC62588  Antennaria microphylla Al Hobart Siskiyou Youngs Valley Comment
  HSC45205  Antennaria racemosa J. O. Sawyer, E. Cope 1977-6-20 2973 Siskiyou Along W slopes of Bear Mtn. 1829 Comment
  UCD159821  Antennaria racemosa G. Ledyard Stebbins 1972-7-3 9006 Siskiyou Summit of Cook and Green Pass. 8 miles north of Seiad Valley. (Exact location unknown. Coordinates estimated by label maker.) 1463 Comment
  CAS-BOT-BC84790  Antennaria racemosa H. E. Brown 1897-6-1 358 Siskiyou Near Mt. Shasta 2133 Comment
  UC29519  Antennaria rosea C. B. Bradley 1879-1 Siskiyou Comment
  HSC21968  Antennaria rosea subsp. rosea J. O. Sawyer 1969-8-4 1843 Siskiyou Above Sugar Lake 2134 Comment
  CAS-BOT-BC102272  Anthemis cotula H. E. Brown 1897-6-15 s.n. Siskiyou North side Mt. Shasta 3048 Comment
  RSA237457  Anthemis cotula Frederick W. Oettinger 1968-9-5 719 Siskiyou Along Hancock Lake on a flat, sandy, open area, along the trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  JEPS104842  Antirrhinum cornutum Dean W. Taylor 1996-6-26 15762 Siskiyou Iron Gate Reservoir; drainage of Brush Creek; Klamath National Forest 670 Comment
  UCD123433  Antirrhinum vexillocalyculatum R. Tofsrud 1949-1 s.n. Siskiyou Exact location unknown. Comment
  RSA0047114  Apera interrupta L. Ahart 2005-6-9 12007 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
  JEPS49801  Apocynum androsaemifolium Geo. D. Butler 1908-8-9 77 Siskiyou Woolly Creek, Cold Spring 1676 Comment
  RSA127723  Apocynum androsaemifolium subsp. pumilum H. A. Thomas, John Thomas 1954-7-25 4519 Siskiyou Salmon Trinity Mts, Vicinity of Rush Lake and Rush Creek Meadow, 9 miles E of Cecilville. 1829 Comment
  RSA238027  Apocynum androsaemifolium subsp. pumilum Frederick W. Oettinger 1967-8-12 248 Siskiyou Crapo Peak, along the Tom Taylor Cabin- English Peak trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  CAS-BOT-BC394979  Aquilegia formosa John Thomas Howell 1939-8-8 15153 Siskiyou Black Mt., Marble Mts. Comment
  SBBG15640  Aquilegia formosa D. Myrick 1961-6-20 280 Siskiyou meadow at Bear Springs on S slope of Mt Shasta 1676 Comment
  UC1190163  Aquilegia formosa Ira L. Wiggins 1955-7-24 13499 Siskiyou above diversion dam (trail at crossing of China Creek) 1301 Comment
  UC166050  Aquilegia formosa Geo. D. Butler 1908-8-9 352 Siskiyou s Marble Valley (hillside) 1828 Comment
  UC375263  Aquilegia formosa Geo. D. Butler 1908-8-3 358 Siskiyou Shackleford Creek Log Lake Comment
  CAS-BOT-BC395150  Aquilegia formosa Donald Myrick 1961-6-20 280 Siskiyou Bear Springs, S slope of Mt. Shasta 1676 Comment
  HSC104  Arabis breweri var. breweri William J. Ferlatte 1966-6-23 134 Siskiyou Yellow Rose Mine 1982 Comment
  UC705860  Arabis glabra Marion Ownbey and Fred G. Meyer 1940-7-7 2207 Siskiyou sw of Yreka (along Soap Ridge Road) Comment
  RSA0125828  Arabis glabra R. F. Thorne 1969-8-2 63331 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  RSA758211  Arabis holboellii R. F. Thorne 1969-8-2 63336 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  HSC26568  Arabis holboellii var. pinetorum J. P. Smith, J. O. Sawyer 1972-8-20 5758 Siskiyou Slope of Mt. Hoffman 2134 Comment
  RSA22009  Arabis holboellii var. retrofracta J. T. Howell 1939-8-2 14913 Siskiyou Spirit Lake, Marble Mts. Comment
  HSC57505  Arabis lyallii G. L. Clifton, Terry Griswold 1979-7-26 10157 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  HSC66261  Arabis modesta Maralyn A. Renner 1980-6-22 897 Siskiyou Slopes N of Little Shasta River 1372 Comment
  HSC27307  Arabis platysperma J. P. Smith, J. O. Sawyer 1971-9-16 4770 Siskiyou Ridge S of Bingham Lake. 2134 Comment
  HSC26702  Arabis platysperma William J. Ferlatte 1971-9-18 1374 Siskiyou Caribou Meadow on N side of Caribou Mtn. 1982 Comment
  HSC79319  Arabis platysperma var. platysperma D. H. Norris 1968-8-7 2263 Siskiyou Crest of Caribou Rim along trail from Big Flat to Caribou Basin 2470 Comment
  UCR37603  Arabis subpinnatifida K. Faber, Scott LaChance, Mike Rekart 1984-5-26 51 Siskiyou 0.7 mi. from Scott Mtn. 1672 Comment
  UC1190174  Aralia californica Ira L. Wiggins 1955-7-22 13455 Siskiyou S. Fork Salmon R. 9.5 mi. above Cecilville; S. Fork Salmon R. Comment
  HSC100205  Arbutus menziesii J. P. Smith, , J. O. Sawyer, & R. J. Cole 2011-5-22 13180 Siskiyou Matthews Campground on the Cecilville to Forks of Salmon Road. 640 Comment
  UC705583  Arceuthobium campylopodum Marion Ownbey, Fred G. Meyer 1940-7-6 2212 Siskiyou summit of Cayenne Ridge near Marble Mtn Comment
  SEINET8530036  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-7-27 2003 -43 Siskiyou 1.2 km NW of Ahlgren Cabin on Garden Gulch Trail Comment
  CAS-BOT-BC45437  Arctostaphylos nevadensis W. R. Dudley 1899-8-24 s.n. Siskiyou Side of Craggy Peak. Comment
  HSC4922  Arctostaphylos nevadensis J. O. Sawyer 1968-7-9 421 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  JEPS83893  Arctostaphylos nevadensis Wayne Roderick July 1976 Siskiyou areas near Cook and Green Pass (along trail to Lily Pad Lake); Siskiyou Mountains Comment
  SBBG5452  Arctostaphylos nevadensis subsp. nevadensis H. and M. Dearing 1939-7-2 3800 Siskiyou Etna-Salmon Divide 1828 Comment
  CAS-BOT-BC46452  Arctostaphylos patula Roxana S. Ferris; Laura Lorraine 1948-6-12 11771 Siskiyou About 6 mi. from Etna on forks of Salmon Rd. 1706 Comment
  CAS-BOT-BC46456  Arctostaphylos patula H. P. Bracelin 1936-4-15 830 Siskiyou NE. slope of Mt. Eddy. 3 mi. above Metcalf ranch house, 6 mi. nw. of Mt. Shasta City. 1341 Comment
  CAS-BOT-BC46459  Arctostaphylos patula Peter H. Raven 1956-9-5 10471 Siskiyou N. Fork of Sacramento River. 1371 Comment
  JEPS42625  Arctostaphylos patula Geo. D. Butler 1909-4-11 640 Siskiyou Shasta Retreat Comment
  POM286020  Arctostaphylos patula Lyman Benson 1929-3-26 1068 Siskiyou Shoulder of Mt. Shasta Pacific Highway. Comment
  POM367401  Arctostaphylos patula L. C. Wheeler 1934-7-25 2984 Siskiyou Long John Creek. 1616 Comment
  POM367403  Arctostaphylos patula Christopher Davidson 1975-6-5 2649 Siskiyou 2.4 mi E of town of Mt. Shasta on Mt. Shasta Uplands Rd. 1280 Comment
  RSA238584  Arctostaphylos patula Frederick W. Oettinger 1967-8-26 324 Siskiyou Top of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2226 Comment
  SEINET2029610 Image available Arctostaphylos patula Reed C. Rollins, T. S. Chambers 1938-8-15 2722 Siskiyou 3 mi south of Weed 914 Comment
  UC585198  Arctostaphylos patula E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1950 Siskiyou on hwy from Bray to Weed, about 2 mi s Sheep Rock (n slope of mt.); Mt. Shasta 1235 Comment
  UC618622  Arctostaphylos patula W. Bridge Cooke 1938-6-17 11016 Siskiyou Sisson Southern Trail Mount Shasta Comment
  HSC6087  Arctostaphylos viscida G. L. Clifton, Griswold 1979-6-27 6087 Siskiyou Near Shackleford Creek, close to the town of Greenview 1342 Comment
  UC852283  Arenaria congesta var. suffrutescens Alice Eastwood 1912-8-30 2033 Siskiyou Mount Eddy Comment
  RSA47977  Arenaria serpyllifolia Roxana S. Ferris, Laura Lorraine 1948-6-12 11721 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  POM312502  Arnica Calvin McMillan, Malcom A. Nobs 1949-6-17 797 Siskiyou Grass Lake, Highway 97. Comment
  HSC69748  Arnica cernua Maralyn A. Renner 1980-6-26 1269 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  RSA34970  Arnica chamissonis subsp. foliosa Roxana S. Ferris, Laura Lorraine 1941-8-11 10499 Siskiyou Grass Lake Station, on US Hwy 97 1555 Comment
  HSC29104  Arnica cordifolia Frederick W. Oettinger 1968-9-1 647 Siskiyou Marble Mtn. Wilderness Area, SSW of Abbotts Lake 1799 Comment
  SEINET11837690  Arnica cordifolia H. P. Chandler 1901-1 1615 Siskiyou near Marble Mountain 2134 Comment
  CHSC95117  Arnica latifolia L. P. Janeway 2006-7-2 8740 Siskiyou Klamath Ranges. Salmon Mountains; headwaters of West Fork Whites Gulch, a tributary of North Fork Salmon River from the south; between sharp switchbacks of Road 40N61. Steep north-facing slope just above alder-shaded creek. 1561 Comment
  JEPS95049  Arnica longifolia Vernon Oswald and Lowell Ahart 1997-7-28 8790 Siskiyou se of Medicine Lake (at Paynes Springs, on the walls of Paynes Creek Canyon n of the campground); Paynes Springs, Paynes Creek Canyon 1981 Comment
  HSC26911  Arnica mollis J. P. Smith, J. O. Sawyer 1971-9-17 4778 Siskiyou Little Duck Lake Comment
  HSC29164  Arnica mollis Frederick W. Oettinger, R. F. Thorne 1969-8-6 1251 Siskiyou Marble Mtn. Wilderness Area, below Tom's Lower Pond 1860 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
  SBBG7592  Arnica mollis H. and M. Dearing 1948-9-12 6735 Siskiyou Mt Shasta 2316 Comment
  CAS-BOT-BC85041  Arnica spathulata Doris K. Kildale 1929-7-20 8706 Siskiyou Raspberry Lake, upper South Fork of Indian Creek 1828 Comment
  CAS-BOT-BC90082  Arnica viscosa Bassett Maguire 1939-8-8 13833 Siskiyou in the valley of Horse Camp Creek 2468 Comment
  CAS-BOT-BC90089  Arnica viscosa Wm. Bridge Cooke 1938-8-18 11501 Siskiyou Horse Camp Slopes, above the Shasta Fir forest 2514 Comment
  HSC62124  Arnica viscosa Al Hobart 1960-9-20 Siskiyou Preston Peak Comment
  UC1483477  Arnica viscosa Maralyn A. Renner 1980-9-1 2697 Siskiyou Devil's Punchbowl Preston Peak Quad., Klamath National Forest 1828 Comment
  UCD70118  Arnica viscosa D. Sanchez-Mata 1997-9-18 s.n. Siskiyou Mount Shasta-McCloud. Snowmans Hill. Ski Park (Mount Shasta) Road. Mount Shasta basis. 1720 Comment
  CAS-BOT-BC90086  Arnica viscosa W. B. Cooke 1947-8-20 17828 Siskiyou slopes near the water supply spring above Horse Camp, Mt. Shasta 2514 Comment
  CAS-BOT-BC90481  Artemisia douglasiana Elmer I. Applegate 1923-8-21 3922 Siskiyou Willow Creek, south of Lower Klamath Marsh Comment
  UC60985  Artemisia douglasiana Geo. B. Grant 1902-9-1 5206 Siskiyou Mount Shasta 609 Comment
  RSA183731  Artemisia ludoviciana subsp. incompta Gilbert Muth 1965-8-17 232 Siskiyou On trail to backside of Blk. Mt. Comment
  RSA184691  Artemisia ludoviciana subsp. incompta Gilbert Muth 1966-7-31 472 Siskiyou North side of Black mountain, Marble Mountains. 2012 Comment
  UC1190087  Artemisia tridentata subsp. tridentata George H. Ward and Ann Ward 1949-7-14 828 Siskiyou 15 mi ne Weed Comment
  CAS-BOT-BC400591  Asarum caudatum A. A. Heller 1919-6-27 13276 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC400695  Asarum hartwegii Alice Eastwood 1912-7-17 1174 Siskiyou Sisson Comment
  UC164150  Asclepias speciosa Geo. D. Butler 1910-6-8 1557 Siskiyou near Yreka Comment
  HSC30617  Asclepias speciosa Frederick W. Oettinger 1969-8-12 1331 Siskiyou Salmon Mtns., 1 mi. from Etna Summit on Rd. toward Etna. Comment
  SEINET7120959  Asclepias speciosa G. D. Butler 1910-6-8 1557 Siskiyou Near Yreka Comment
  UC593452  Aspidotis densa E. B. Babcock and G. L. Stebbins Jr. 1936-6-13 1986 Siskiyou ca. 1 1/2 mi w Mt Shasta City (spur of Rainbow Ridge above Sulloway Creek) 1180 Comment
  RSA686383  Aspidotis densa M. B. Dunkle 1944-7-18 9135 Siskiyou Siskiyou National Forest Comment
  SEINET10799400 Image available Aster occidentalis var. occidentalis Edwin B. Copel 1903-9-7 Copeland 3867 Siskiyou Mt. Eddy. 2743 Comment
  POM58124  Aster torreyi E. B. Copeland 1903-9-8 3869 Siskiyou Foot of Mt. Eddy 122 Comment
  UCD105521  Astragalus Geo. W. King 1926-4-25 s.n. Siskiyou Montague, thru Mt. Elwood. Comment
  JEPS116602  Astragalus curvicarpus var. curvicarpus J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -15 Siskiyou North side of Mt. Shasta south of Hwy 97; Hotlum Fire area burned in Feb 2006 1090 Comment
  UC1128798  Astragalus curvicarpus var. curvicarpus M. H. Mitchell 1936-5-14 Siskiyou Hospital Rock Dorris Quad., Modoc Lava Beds Natl Monument, Hospital Rock 1249 Comment
  UC1731130  Astragalus inversus Dean Wm. Taylor with Glenn L. Clifton, Rexford E. Palmer, Roy Buck 1987-6-24 9049 Siskiyou vicinity of Mud Well, McCloud River headwaters 1402 Comment
  CAS-BOT-BC187305  Astragalus lentiginosus var. lentiginosus A. A. Heller 1905-6-19 8062 Siskiyou Near Grenada Station 822 Comment
  UC1333513  Astragalus purshii var. purshii John F. Davidson 1947-5-17 4634 Siskiyou 5 mi from Callahan, 27 mi from Trinity Center, at first summit of Scott Mt. Road on n slope of Scott Mt. Comment
  HSC39321  Astragalus purshii var. tinctus J. P. Smith 1974-5-26 7385 Siskiyou Along FS Rd. 47N03 1524 Comment
  JEPS54807  Astragalus purshii var. tinctus Geo. D. Butler 1909-5-3 708 Siskiyou Butcher Hill , Butcher Hill (Yreka) Comment
  JEPS54808  Astragalus purshii var. tinctus J. W. Kisling 1910-4-20 Siskiyou Edgewood Comment
  POM16071  Astragalus purshii var. tinctus E. B. Copeland 1903-7-6 7964 Siskiyou Hornbrook. Comment
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Jan 23 2011
  RSA110923  Astragalus purshii var. tinctus R. C. Barneby 1954-5-16 11518 Siskiyou Scott Bar. 549 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-BC198718  Astragalus whitneyi var. siskiyouensis L. E. Smith 1913-7-2 448 Siskiyou Rainbow Comment
  UC1561941  Astragalus whitneyi var. siskiyouensis Barbara Ertter 1985-5-30 5758 Siskiyou on Hwy 3 se of Callahan 2.6 mi n Scott Mt. Summit; n of Scott Mt. summit, se of Callahan 1402 Comment
  CAS-BOT-BC69574  Athyrium alpestre subsp. americanum C. G. Pringle 1882-8-29 s.n. Siskiyou Mount Shasta. 2438 Comment
  HSC76657  Athyrium distentifolium var. americanum K. T. Stillman 1976-7-22 294 Siskiyou Marble Mtn. Wilderness Area Comment
  UC371154  Athyrium distentifolium var. americanum G. D. Butler 1909-7-15 876 Siskiyou Highland Mine Comment
  CAS-BOT-BC66195  Athyrium filix-femina var. cyclosorum Geo. D. Butler 1908-8-4 244 Siskiyou Cold Spring Woolly Creek Comment
  UC637169  Athyrium filix-femina var. cyclosorum Edward Lee 1934-8-11 1032 Siskiyou e end Seiad Valley (Walker Creek, a tributary of Klamath River) 609 Comment
  HSC29369  Athyrium filix-femina var. cyclosorum Frederick W. Oettinger 1966-8-7 44 Siskiyou High Lake Basins: just below spring at Tom Taylor Cabin 2043 Comment
  HSC36729  Athyrium filix-femina var. cyclosorum Brent Whiteley 1975-7-1 112 Siskiyou 671 Comment
  UC163672  Atriplex rosea Geo. D. Butler 1910-8-18 1841 Siskiyou Shasta Valley Comment
  HSC4360  Atriplex rosea R. C. Wunner 1965-8-14 420 Siskiyou Lava Beds National Monument, Hovey Point. 1220 Comment
  OBI55453  Balsamorhiza deltoidea David J. Keil 1992-7-20 23510 Siskiyou Klamath Natl forest, SW of Fort Jones. Along forest rd 46N64, 4.8 mi W of Scott river Rd 800 Comment
  RSA30371  Balsamorhiza hookeri var. lagocephala Lincoln Constance, Reed C. Rollins 1942-5-14 s.n. Siskiyou 1 mile E of Yreka 762 Comment
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Apr 26 2007
  RSA722496  Balsamorhiza hookeri var. lagocephala Richard Halse 1989-5-6 3818 Siskiyou Along Old Hwy. 99, 3.2 to 6.2 miles S of Gazelle or 1.5 miles N of its junction with Old Stage Road. 912 Comment
  CAS-BOT-BC100057  Balsamorhiza lanata Alice Eastwood; John Thomas Howell 1934-4-20 1754 Siskiyou Near Yreka on Ft. Jones Road Comment
  JEPS89306  Balsamorhiza lanata Dean W. Taylor 1997-6-12 16067 Siskiyou ca. 4 mi. w. Gazelle (hillslopes at base of Scott Mts. at mouth of Willow Creek, Shasta Valley); Klamath Region (eKR), China Mt. Quad., Shasta Valley 944 Comment
  SFV3761  Balsamorhiza lanata D. Parker 1951-4-19 544 Siskiyou Near Callahan. 945 Comment
  HSC67996  Balsamorhiza sericea J. P. Smith 1976-5-21 8768 Siskiyou Klamath National Forest, FS Rd. 40N08, 6.9 mi. from its junction with Hwy. 3 1524 Comment
  CAS-BOT-BC16686  Barbarea orthoceras John Thomas Howell 1937-7-22 13263 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC16689  Barbarea orthoceras Doris K. Kildale 1929-7-20 8700 Siskiyou Raspberry Lake. South Fork India[n] Creek. Comment
  CAS-BOT-BC16691  Barbarea orthoceras Alice Eastwood 1923-5-18 11822 Siskiyou Shasta Springs. Comment
  HSC203  Barbarea orthoceras William J. Ferlatte 1966-6-22 94 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  HSC73274  Berberis aquifolium var. repens M. A. Baker 1980-6-20 2185 Siskiyou Near Bald Mtn. 1036 Comment
  UC164979  Berberis nervosa Geo. D. Butler 1908-8-22 540 Siskiyou Eldridges' Corral, Russian Creek Eldridges' Corral Comment
  CAS-BOT-BC75927  Berberis piperiana Carl B. Wolf 1934-7-5 5973 Siskiyou 7 miles from Oak Knoll Ranger Station on Klamath River, on road to Dry Lake Lookout, Siskiyou Mountains. 1371 Comment
  CAS-BOT-BC75937  Berberis piperiana C. Hart Merriam 1919-10-12 s.n. Siskiyou Scott Valley (near Etna). Comment
  CAS-BOT-BC76004  Berberis pumila John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53389 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones. 1249 Comment
  CDA34722  Berula erecta L. Ahart, John Dittes 2010-7-3 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. Comment
  UC572972  Berula erecta Louis C. Wheeler 1935-7-3 3649 Siskiyou 2 mi nw of Montague (Shasta River); Shasta River 762 Comment
  HSC4950  Betula occidentalis J. O. Sawyer 1968-10-8 752 Siskiyou Rd. to Kangaroo Lake E of Callahan along Rock Fence Creek Comment
  JEPS87872  Betula occidentalis Vernon H. Oswald and Lowell Ahart 1994-8-1 6443 Siskiyou junction of Forest Road 17 3.3 mi sw junction with Stewart Springs Rd (w of Weed) 1706 Comment
  UCR51790  Bidens cernua L. C. Wheeler 1934-10-21 03337 Siskiyou Shasta Valley, 4 miles east of Grenada 869 Comment
  CAS-BOT-BC102119  Bidens cernua A. A. Heller 1914-8-25 11718 Siskiyou Granite sand near Deetz station opposite Black Butte 1158 Comment
  JEPS24015  Bidens frondosa Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6876 Siskiyou 2 mi w, in canyon of Portugese Creek Seiad Valley; Klamath River, Portugeuese Creek 396 Comment
  POM211183  Bidens frondosa L. C. Wheeler 1934-9-19 3285 Siskiyou Walker, Klamath River 518 Comment
  CAS-BOT-BC127933  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek 914 Comment
  CAS-BOT-BC127975  Blepharipappus scaber David D. Keck 1949-7-19 6356 Siskiyou 6.5 mi. SW of Yreka on Road to Ft. Jones, nr. head of Yreka Creek at first spring Serpentine outcropping here. 1127 Comment
  POM250770  Blepharipappus scaber D. D. Keck 1938-8-8 4861 Siskiyou 0.4 mile south of Scoot Mountain Lodge, near Mill Creek Scott Mountains. 1040 Comment
  CAS-BOT-BC15793  Boechera acutina John Thomas Howell 1939-8-9 15193 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  UCD114359  Boechera breweri R. E. Preston 1982-5-1 277 Siskiyou 0.6 mi NW of where Camp Creek enters Irongate Reservoir. 853 Comment
  UC1409351  Boechera platysperma Frederick W. Oettinger 1969-9-4 1636 Siskiyou peak just e Hancock Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, English P 1981 Comment
  UC1409430  Boechera retrofracta Frederick W. Oettinger 1969-7-11 922 Siskiyou Near Half-way Spring, trail from English Lake to Diamond Lake, Salmon Mountains, Marble Mountain Wilderness Area, English Peak. 1828 Comment
  UC722114  Boechera retrofracta C. L. Hitchcock and J. S. Martin 1939-7-9 5308 Siskiyou near Marble Mt. (Kings Castle) (n side of Black Mt.); Black Mt. 2072 Comment
  CAS-BOT-BC25443  Boechera retrofracta Elmer I. Applegate 1895-5-29 29 b Siskiyou Sisson (Mt. Shasta City), west base of Mount Shasta. Comment
  CAS-BOT-BC25611  Boechera retrofracta John Thomas Howell 1937-7-26 13569 Siskiyou Salmon River Gulch. Between Big Flat and Caribou Gulch. Comment
  CAS-BOT-BC410930  Boechera sparsiflora L. E. Smith 1913-4-25 104 Siskiyou Hornbrook Comment
  UC1409353  Boechera suffrutescens Frederick W. Oettinger 1968-8-16 540 Siskiyou n of Hancock Lake (w side of Red Hill, vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, English P 2057 Comment
  UC1475116  Botrychium pinnatum Donald Burk 1993-9-7 Siskiyou ca. 3/4 mi e Gray Butte radio facilities (between confluence of 2 streams); s slope Mt. Shasta 1950 Comment
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Apr 20 2012
  HSC4949  Boykinia major J. O. Sawyer 1968-7-23 581 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake 1829 Comment
  HSC811  Boykinia major William J. Ferlatte 1967-7-26 738 Siskiyou Caribou Basin 1982 Comment
  POM92218  Boykinia major Geo. D. Butler 1908-8-22 217 Siskiyou Salmon Mtn. 1677 Comment
  RSA238756  Brickellia grandiflora Frederick W. Oettinger 1968-8-23 611 Siskiyou Base of cliff due ENE of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  JEPS16950  Brickellia greenei Peter H. Raven 1956-9-5 10462 Siskiyou Fork of the Sacramento River 1828 Comment
  SEINET8399968  Brodiaea elegans L. E. Detling 1959-6-8 8225 Siskiyou Scott River near Scott Bar. 579 Comment
  CAS-BOT-BC484386  Brodiaea elegans subsp. elegans Donald Myrick 1961-6-21 294 Siskiyou Along Highway 99 just south of Yreka Comment
  SJSU11319  Bromus carinatus var. carinatus S. H. Casey 1981-7-4 1211 Siskiyou N side of Cook & Green Pass, Siskiyou Mts, Seiad Creek Road c. 9 mi N of Seiad Valley, northwestern Siskiyou County. 1463 Comment
  UC1265357  Bromus carinatus var. carinatus F. W. Oettinger 1968-8-6 453 Siskiyou Salmon Mountains, Crapo Meadow, w Siskiyou County Crapo Meadow; Salmon Mountains, Crapo Meadow 2133 Comment
  UC204769  Bromus carinatus var. carinatus Geo. D. Butler 1909-6-2 814 Siskiyou near Yreka Comment
  HSC103038  Bromus commutatus J. P. Smith 2014-6-7 13896 Siskiyou Along State Route 3 at its junction with the East Fork of the Scott River 994 Comment
  LA13775  Bromus hordeaceus Jason Swallen; 1939-6-23 13525 Siskiyou Mount Shasta, Along the road between Bear Springs and Wagon Camp 1676 Comment
  HSC94048  Bromus japonicus G. Fred Hrusa 1998-7-5 14685 Siskiyou S side of Pass on Happy Camp-O'Brien Rd., CA side of state boundary, above Indian Creek Camp 750 Comment
  RSA239069  Bromus marginatus Frederick W. Oettinger 1969-9-1 1576 Siskiyou Dry Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UC1265365  Bromus orcuttianus F. W. Oettinger 1969-8-16 1392 Siskiyou near English Lake (Salmon Mountains, w Siskiyou County); Salmon Mountains 1706 Comment
  UC1265366  Bromus orcuttianus Frederick W. Oettinger and R. F. Thorne 1969-8-6 1246 Siskiyou below Pine Lake Basin (in vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area, Western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  CAS-BOT-BC161630  Bromus sterilis Doris K. Kildale 1928-7-4 5511 Siskiyou Summit of divide between Sawyers Bar and Etna. Comment
  CHSC91335  Bromus tectorum Lowell Ahart; John Dittes 2005-6-9 12010 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
  HSC103037  Bromus tectorum J. P. Smith 2014-6-7 13895 Siskiyou Along State Route 3 at its junction with the East Fork of the Scott River 994 Comment
  NY664637  Bromus tectorum A. A. Heller 1905-6-9 8012 Siskiyou Montague Comment
  CAS-BOT-BC185382  Bromus vulgaris John Thomas Howell 1937-7-23 13364 Siskiyou South Fork of Salmon River near Big Flat. 1524 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
  HSC22235  Calamagrostis koelerioides J. O. Sawyer 1968-9-9 664 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  RSA273425  Calamagrostis koelerioides J. P. Smith, Steve Selva 1970-7-27 4502 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  RSA60790  Calamagrostis koelerioides Dorothy Parker 1948-8-19 Siskiyou summit of Scott Mountain. 1583 Comment
  UCD57255  Calamagrostis koelerioides A. H. Murphy 1955-7-28 55 H Siskiyou Klamath National Forest, Marble Mountains, Hancock Lake. 1889 Comment
  SBBG28166  Callitriche heterophylla var. bolanderi L. C. Wheeler 1935-6-13 3568 1/2 Siskiyou Greenview, Scott Valley 883 Comment
  CAS-BOT-BC85746  Calocedrus decurrens Wm. Bridge Cooke 1938-9-2 11592 Siskiyou Sisson Southern Trail 1524 Comment
  HSC49916  Calocedrus decurrens Maralyn O'Meara 1974-5-25 396 Siskiyou Along road to Duck Lakes trail 1402 Comment
  JEPS80595  Calocedrus decurrens Gilbert Muth 1966-8-3 495 Siskiyou Marble Valley Meadow Marble Mt. Wilderness, Marble Valley Meadow 1792 Comment
  CAS-BOT-BC85749  Calocedrus decurrens C. Hart Merriam 1907-9-15 s.n. Siskiyou Near Hat Creek (between Snell's and Eldredge's. Comment
  NY18936  Calocedrus decurrens H. E. Brown 1897-7-1 507 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
  SBBG15287  Calochortus coeruleus H. and M. Dearing 1939-7-1 3793 Siskiyou Salmon Mtn summit 1828 Comment
  SEINET10469584  Calochortus coeruleus Mary Merello 1993-6-25 Merello 727 Siskiyou Shasta National Forest. Deep Crater Area. Lava beds. Open pine forest. Along Forest Service Road 42N22, from Main Forest Service Road 49-Powder Hill Road. 1550 Comment
  CAS-BOT-BC487851  Calochortus coeruleus W. B. Cooke; V. G. Cooke 1946-6-17 17525 Siskiyou Along road below Wagon Camp, Mt. Shasta 1737 Comment
  JEPS113327  Calochortus elegans L. P. Janeway 2006-7-4 8795 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. Comment
  UC119789  Calochortus elegans Harley P. Chandler Jun 1901 1646 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  UC13822  Calochortus elegans Harley P. Chandler Jun 1901 1646 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  UC375200  Calochortus elegans Geo. D. Butler 1910-5-1 1260 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC488615  Calochortus elegans var. nanus A. A. Heller 1906-6-15 s.n. Siskiyou Near Sisson Comment
  SEINET12053885  Calochortus elegans var. nanus H. P. Chandler 1901-1 1646 Siskiyou Marble Mountain, North Coast Ranges 2438 Comment
  SEINET12053890  Calochortus elegans var. nanus M. Ownbey, Brown, D. H. 1941-1 2429 Siskiyou near Gunsight Peak, mountains W of Yreka Comment
  SEINET5078371  Calochortus greenei Unknown 1995-7-1 25 Siskiyou near Table Mountain; east of Yreka, CA Comment
  CHSC67731  Calochortus nudus J. D. Jokerst 1983-6-6 1832 Siskiyou At Tom Young Flat. Comment
  CAS-BOT-BC493092  Calochortus nudus W. B. C. 1938-7-15 11219 Siskiyou Wagon camp 1706 Comment
  CAS-BOT-BC493097  Calochortus nudus Frank Callahan 1994-8-15 s.n. Siskiyou SE of Bartle both side of Hwy 89 in open to nearly closed canopy meadows with Salix and Pinus contorta. 1493 Comment
  CAS-BOT-BC493100  Calochortus nudus Thomas W. Nelson; Jane P. Nelson 1980-7-20 6189 Siskiyou China Mountain Camp. On hillside above and to southeast of Big Carmen Lake. 1737 Comment
  CAS-BOT-BC494018  Calochortus tolmiei G. J. Muth 1965-8-6 1299 Siskiyou Boulder Peak Ridge, Gap 2286 Comment
  CAS-BOT-BC132631  Calochortus uniflorus Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  JEPS82681  Caltha biflora Wayne Roderick 1984-6-7 Siskiyou North side of Mt. Eddy road 17. 1676 Comment
  CAS-BOT-BC181511  Caltha leptosepala Harley P. Chandler 1901-6-1 1571 Siskiyou Ridges and meadows near Marble Mountain 1828 Comment
  HSC4947  Caltha leptosepala J. O. Sawyer 1968-6-25 320 Siskiyou Along Horse Range Creek 1829 Comment
  CDA10559  Calycadenia ciliosa D. L. Janssen, F. D. Horn 1982-9-2 Siskiyou Callahan-Gazelle Road. 0 Comment
  UC1971695  Calycadenia truncata 1974-9-12 2160 Siskiyou 0.4 mi E of Somesbar on Salmon River Road 195 Comment
  POM30674  Calycadenia truncata subsp. microcephala Geo. D. Butler 1910-7-30 1801 Siskiyou Near Yreka. Comment
  CAS-BOT-BC272746  Calycadenia truncata subsp. truncata Louis C. Wheeler 1934-6-26 2787 Siskiyou Camp Lowe, Klamath River, Siskiyou Mts. 762 Comment
  HSC26561  Calyptridium monospermum J. P. Smith, J. O. Sawyer 1972-8-20 5753 Siskiyou Slope of Mt. Hoffman 2134 Comment
  JEPS127643  Calyptridium monospermum Jurriaan M. de Vos 2014-7-10 313 Siskiyou Klamath NF. Along and just S of Pacific Crest Trail, ca. 250 m E from Cook and Green Pass (Forest Road 1055). Comment
  JEPS31594  Calystegia malacophylla subsp. malacophylla Willis L. Jepson Jul 24 1894-Aug 10 1894 14525 Siskiyou Sisson , Sisson (region of the Upper Sacramento) Comment
  CAS-BOT-BC221263  Calystegia malacophylla subsp. malacophylla Alice Eastwood 1912-8-30 2030 Siskiyou Mount Eddy Comment
  UC640525  Camassia quamash subsp. breviflora Frank W. Gould 1940-5-15 1224 Siskiyou Goosenest Mountain, Bull Meadows Bull Meadows; Goosenest Mountain, Bull Meadows 152 Comment
  CAS-BOT-BC497585  Camassia quamash subsp. breviflora Frank W. Gould 1940-5-15 1224 Siskiyou Bull Meadows, Goosenest Mountain 1524 Comment
  CAS-BOT-BC37000  Camelina microcarpa Carl B. Wolf 1934-7-6 5977 Siskiyou Southwest slope of Mount Shasta. 0.25 mile east of Mount Shasta City. 1097 Comment
  CAS-BOT-BC36992  Camelina microcarpa L. E. Smith 1913-6-5 415 Siskiyou Montague. Comment
  RSA120905  Camelina microcarpa Milo S. Baker 1957-6-15 13102 Siskiyou Just south of Weed. Comment
  RSA530925  Camelina microcarpa L. C. Wheeler 1934-6-2 2619 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mountains (Mt. Diablo Mer.) 671 Comment
  CAS-BOT-BC160896  Camissonia tanacetifolia subsp. tanacetifolia Peter H. Raven 1962-5-30 17898 Siskiyou U. S. Highway 97, 4.4 miles south of Dorris Comment
  SEINET10840322  Campanula prenanthoides Muth 1976-7-29 MUTH s.n. Siskiyou Near Kuntz Creek, on the Seiad Valley Quadrangle; close to the town of Seiad Valley 1829 Comment
  SEINET10840323  Campanula prenanthoides Muth 1975-8-1 MUTH s.n. Siskiyou Near Sutcliffe Creek, on the Preston Peak quadrangle; close to the town of Happy Camp 1341 Comment
  UC1258468  Campanula prenanthoides John Palmer 1980-8-12 682 Siskiyou se Wards Gap; Condry Mtn. Quad. 1188 Comment
  SEINET10463086  Campanula prenanthoides Kildale 1928-7-3 KILDALE 5442 Siskiyou Little North Fork of Salmon River near mouth Comment
  SEINET10939017  Campanula prenanthoides A. Arthur Heller 1920-7-28 Heller 13486 Siskiyou ALONG HIGHWAY NORTH SLOPE OF SISKIYOU MTNS YELLOW PINE AND OAK BELT Comment
  HSC76901  Campanula rotundifolia K. T. Stillman 1976-7-15 255 Siskiyou Marble Mountain Wilderness Area 1951 Comment
  JEPS104783  Campanula rotundifolia Dean W. Taylor 1996-7-11 15780 Siskiyou Scott Mountains; West Park Lakes (about 15 air miles west of Weed); Shasta-Trinity National Forest 2194 Comment
  POM148010  Campanula rotundifolia J. B. Feudge 1927-7-22 1776 Siskiyou Trail to Mt. Shasta City to Mt. Eddy. Comment
  CAS-BOT-BC266451  Campanula scabrella Alice Eastwood 1912-8-30 2010 Siskiyou Mount Eddy Comment
  HSC91399  Campanula scabrella Jennifer Whipple 1976-7-7 1334 Siskiyou N slopes of Mt. Eddy. 2439 Comment
  SEINET10463372  Campanula scabrella William R. Dudley 1899-8-26 Dudley s.n. Siskiyou SLOPES AND TOP OF MT. EDDY Comment
  SEINET10463787  Campanula scouleri Clifton 1975-7-29 CLIFTON s.n. Siskiyou Near Copper Butte; Seiad Valley quadrangle near Seiad Valley 1414 Comment
  RSA211342  Campanula wilkinsiana William J. Ferlatte 1967-8-22 1099 Siskiyou Head of Kidd Creek. 2134 Comment
  SEINET10463876  Campanula wilkinsiana Hosford 1881-8-24 HOSFORD s.n. Siskiyou Mount Shasta Comment
  SFV1452  Cardamine D. Parker 1958-5-25 642 Siskiyou Summit of Scott Cut. 1631 Comment
  HSC90975  Cardamine californica Jennifer Whipple 1976-6-17 1025 Siskiyou Near Durney Lake 2073 Comment
  POM95616  Cardamine cordifolia var. lyallii Geo. D. Butler 1908-8-8 132 Siskiyou Marble Valley. 1829 Comment
  CDA36793  Cardaria draba D. B. Joley 1976-6-24 5 Siskiyou Montague. 0 Comment
  CAS-BOT-BC19762  Carex abrupta John Thomas Howell 1939-8-3 15004 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  HSC29660  Carex abrupta Frederick W. Oettinger, R. F. Thorne 1969-8-6 1260 Siskiyou Marble Mtn. Wilderness Area, lower pond, Tom's Lake 1951 Comment
  CAS-BOT-BC17861  Carex amplifolia J. H. Thomas 1954-5-14 4181 Siskiyou Trinity National Forest. Salmon Mountains. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. 1219 Comment
  CAS-BOT-BC17965  Carex angustata W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow. Comment
  UCD140097  Carex angustata A. A. Heller 1920-7-6 13409 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1158 Comment
  CAS-BOT-BC17993  Carex aquatilis W. J. Ferlatte 1966-8-3 278 Siskiyou Josepine Lake Basin. 1920 Comment
  HSC76314  Carex aquatilis L. P. Janeway 1982-8-22 178 Siskiyou Near the old jeep road between Poker Flat and Kelly Lake 1555 Comment
  CAS-BOT-BC18131  Carex athrostachya John Thomas Howell 1939-8-8 15139 Siskiyou Marble Mountains. Between Sky High Valley and Marble Valley. Comment
  UC143808  Carex athrostachya Dr. E. B. Copeland 1903-9-7 3866 Siskiyou Mount Eddy 2133 Comment
  HSC41809  Carex breweri Robert Wharton 1977-8-20 Siskiyou Along E slope of Mt. Shasta at Wintun Glacier along ridge between Ash & Brewer Creeks 3354 Comment
  SD71330  Carex breweri B. B. Chistman 1966-7-4 Siskiyou Mt. Shasta. 3657 Comment
  HSC73326  Carex concinnoides Gail Newton 1980-6-20 488 Siskiyou Near Bald Mtn. 1097 Comment
  HSC76386  Carex concinnoides L. P. Janeway 1982-7-10 58 Siskiyou Near Old Greyback Rd., 1/2 mi. above the W Branch Guard Station 747 Comment
  JEPS25915  Carex densa W. L. Jepson July, 1884 51 a Siskiyou Sisson Comment
  CHSC96446  Carex echinata subsp. echinata Gordon Leppig; Jennifer Kalt 1996-7-9 367 Siskiyou Klamath National Forest. Russian Wilderness, Little Duck Lake Fen. In cirque west of Little Duck Lake. UTM Zone 10 NAD 1927, 503813E, 4572466N. 2200 Comment
  CAS-BOT-BC19919  Carex epapillosa Alice Eastwood 1921-7-28 10940 Siskiyou Medicine Lake. Comment
  CHSC78915  Carex feta Rhonda Posey 2000-8-17 Siskiyou Mud Creek Meadows; along Road 42N13 (Pilgrim Creek Road) about 3.5 mi northeast of the McCloud Ranger District office in McCloud. 1097 Comment
  JEPS25916  Carex feta W. L. Jepson 1894-8-4 53 a Siskiyou Mt. Shasta Comment
  HSC37425  Carex fissuricola J. O. Sawyer 1969-8-5 1751 Siskiyou W of Little Duck Lake 2073 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
  UC1608358  Carex gigas J. Kierstead 1991-7-3 91 -96 Siskiyou Fawn Creek Meadow Shasta-Trinity National Forests, Mt. Shasta Ranger Dist. 1828 Comment
  UC1586944  Carex halliana Juha Pykala and D. H. Norris 1987-7-8 2421 Siskiyou campground area, ne side of lake Medicine Lake 2040 Comment
  SEINET7485275 Image available Carex hassei Peter F. Zika 2009-1 24535 Siskiyou near Pacific Crest Trail, Route 3, Scott Mountain Summit 1640 Comment
  UCD140450  Carex hoodii Wm. E. Moon 1958-5-29 s.n. Siskiyou State Hwy. 97, southwest of Hebron Summit. 1524 Comment
  JEPS117731  Carex hystericina Robert E. Preston 2008-5-15 2633 Siskiyou ca. 2 mi N of, along Hwy 96 Somes Bar; Davis Creek 228 Comment
  LA17569  Carex inops J. W. Stacey; 1940-7-12 15344 Siskiyou Mount Shasta, along the Sisson Southern Trail 1676 Comment
  CAS-BOT-BC35523  Carex jonesii John Thomas Howell 1937-7-22 13256 Siskiyou South Fork of the Salmon River near Big Flat 1524 Comment
  RSA237328  Carex laeviculmis Frederick W. Oettinger 1968-9-9 799 Siskiyou Along stream that runs from Tom s Upper Pond to Tom s Lower Pond. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  CAS-BOT-BC31309  Carex lenticularis var. impressa Clare B. Hardham 1965-8-20 13011 Siskiyou Cudahy Lakes, Marble Mts. Paso Robles Comment
  UC630392  Carex lenticularis var. impressa Annetta Carter 1939-8-20 1461 Siskiyou 12 mi sw Etna (nw side of Taylor Lake); Salmon Mountains, Taylor Lake 2026 Comment
  CHSC96158  Carex lenticularis var. lipocarpa L. P. Janeway 2006-7-1 8716 Siskiyou Klamath Ranges. Salmon Mountains; just west of Carter Meadow, north side of South Fork Salmon River. Small open dry meadow along road with seepy ditch along upper road edge. 1579 Comment
  HSC37422  Carex leptopoda J. O. Sawyer 1968-7-10 493 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  UCD140484  Carex leptopoda John Thomas Howell 1939-8-3 14963 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  HSC48041  Carex leptopoda D. H. Norris 1972-6-11 22844 Siskiyou Along Duck Lakes trail near Parrott's Mill Rd. 1677 Comment
  JEPS105409  Carex luzulifolia Dean W. Taylor 1996-7-26 15840 Siskiyou Scott Mtns.; Crater Lake, in cirque above upper lake (about 10 air miles west of Weed); Klamath National Forest Comment
  JEPS121601  Carex luzulina Danielle Roach 2011-9-15 Siskiyou Tamarack Flat, north of Mt. Eddy. Flat meadow on ultramafic soil. South China Mountain quadrangle. TF1_B Comment
  CAS-BOT-BC31630  Carex luzulina var. ablata John Thomas Howell 1939-8-7 15120 Siskiyou Sky High Valley, MarbleMts. 1828 Comment
  HSC29663  Carex mariposana Frederick W. Oettinger 1968-9-6 733 Siskiyou Marble Mtn. Wilderness Area, High Lake Basins, SE of Tom's Lake 2149 Comment
  HSC82005  Carex mendocinensis Thomas W. Nelson, Jane Nelson 1979-6-16 4847 Siskiyou Along Hwy. 3, 2.7 mi. N of Scott Mtn. Summit 1341 Comment
  JEPS25658  Carex mertensii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7301 Siskiyou 4 air-line mi n-ne of Preston Peak (just e of Del Norte County line, in Twin Valley, Siskiyou Mountains, watershed of Indian Creek); Siskiyou Mountains, Twin Valley 1493 Comment
  CAS-BOT-BC32014  Carex multicaulis R. E. Frenkel 1964-7-14 696 Siskiyou On Everitt Memorial Hwy near Mt. Shasta, 4.7 mi N of McCloud River RR crossing. 1545 Comment
  JEPS106479  Carex multicaulis J. K. Nelson with J. R. Nelson 2004-7-4 2004 -60 Siskiyou S side Mount Shasta, W side Squaw Valley Creek above Road 31 Comment
  POM81969  Carex multicaulis Geo D. Butler 1910-5-5 1290 Siskiyou [Huckleberry] Mountain. 1220 Comment
  RSA48007  Carex multicaulis Roxana S. Ferris, Laura Lorraine 11801 -A Siskiyou At Mule Creek crossing, Scott Mountain road, south of Callahan. Comment
  HSC39380  Carex multicostata J. O. Sawyer 1969-7-18 1435 Siskiyou SW facing slope above Deacon Lee Trail 2195 Comment
  HSC85829  Carex multicostata L. P. Janeway 1983-7-2 362 Siskiyou SE side of Klamath River, 6 mi. E on China Creek Rd., near Happy Camp, near water's edge 335 Comment
  CHSC40159  Carex nudata L. P. Janeway 1983-7-2 355 Siskiyou Along northwest shore of Klamath River ca 1 mile west of Seiad Creek. 411 Comment
  CHSC69840  Carex nudata Lawrence Janeway 1982-8-14 131 Siskiyou Along n shore of Klamath R. 426 Comment
  HSC7157  Carex nudata L. C. Wheeler 1934-9-22 3296 Siskiyou Walker, Klamath River Comment
  UC143741  Carex nudata Copeland 1903-7-4 3541 Siskiyou Klamathon Pacific Coast Comment
  RSA20485  Carex pellita L. S. Rose 1937-7-3 37393 Siskiyou Weed. 945 Comment
  JEPS25657  Carex preslii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7300 Siskiyou 4 air-line mi nne Preston Peak (meadow at Twin Valley, just e of Del Norte County line); Siskiyou Mts., Twin Valley, watershed of Indian Creek 1493 Comment
  CAS-BOT-BC118794  Carex preslii William Bridge Cooke 1939-7-13 13666 Siskiyou Above Panther Creek Meadows. 2499 Comment
  SD61024  Carex raynoldsii Darley F. Howe 1964-8-4 Siskiyou Modoc National Forest; Medicine Lake; meadow. 2012 Comment
  CHSC102562  Carex rossii L. P. Janeway 2009-8-3 9891 Siskiyou High Cascade Range. Mt. Shasta, east-northeast slope 2.4 air km southwest of Brewer Creek Trailhead; about 20 m south of Brewer Creek. 2637 Comment
  HSC62623  Carex rostrata Al Hobart 1968-6-13 Siskiyou Youngs Valley Comment
  HSC49934  Carex scabriuscula Gilbert Muth 1978-8-4 7589 Siskiyou Near Big Carmen Lake, close to the town of Callahan 1707 Comment
  HSC68517  Carex scabriuscula Maralyn A. Renner 1980-6-26 1170 Siskiyou Flint Valley. 1390 Comment
  HSC91194  Carex scabriuscula Jennifer Whipple 1977-7-21 2017 Siskiyou Near Durney Lake 2073 Comment
  RSA238967  Carex scopulorum Frederick W. Oettinger 1968-9-9 804 Siskiyou Tom s Lake lower meadow. Salmon Mountains. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  RSA238968  Carex scopulorum Frederick W. Oettinger 1968-9-5 710 Siskiyou At south end of Diamond Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2072 Comment
  HSC96589  Carex scopulorum var. bracteosa Gordon Leppig, J. Kalt 1996-7-9 391 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SEINET7575020 Image available Carex scopulorum var. bracteosa Frederick W. Oettinger 1968-9-5 710 Siskiyou Salmon Mountains, the High Lake Basins in the vicinity of English Peak Marble, Mountain Wilderness Area, south end of Diamond Lake. 2073 Comment
  CAS-BOT-BC117238  Carex spectabilis William Bridge Cooke 1938-9-8 11666 Siskiyou Mt. Shasta. 2590 Comment
  HSC2415  Carex spectabilis William J. Ferlatte 1966-8-5 344 Siskiyou Caribou Mtn. 2470 Comment
  HSC96549  Carex spectabilis Gordon Leppig 1998-8-14 1027 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  UC1265388  Carex spectabilis Frederick W. Oettinger 1969-9-2 1603 Siskiyou near Tom Taylor Cabin (in Bear Meadow); Salmon Mountains, Marble Mountain Wilderness 2164 Comment
  UC642543  Carex spectabilis J. W. Stacey 1939-7-26 13748 Siskiyou in west boreal spring above Panther Creek Meadows; Mount Shasta Comment
  HSC30524  Carex spectabilis Frederick W. Oettinger 1968-9-4 700 Siskiyou Marble Mtn. Wilderness Area, slope SE of Abbott's Lake 1723 Comment
  RSA238925  Carex spectabilis Frederick W. Oettinger 1968-9-4 700 Siskiyou Slope southeast of Abbott s Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1723 Comment
  SEINET10749876  Carex straminiformis Edwin B. Copel 1903-8-16 Copeland 3893 Siskiyou Mt. Shasta. 2438 Comment
  HSC48042  Carex subfusca D. H. Norris 1972-6-11 22907 Siskiyou Along Duck Lakes trail near Parrott's Mill Rd. 1677 Comment
  UC1265466  Carex subfusca Frederick W. Oettinger 1969-8-19 1464 Siskiyou between King David Peak and Abbott's Basin; Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  CHSC40129  Carex vesicaria L. P. Janeway 1982-8-15 149 Siskiyou On w side of Echo Lake. 1676 Comment
  UC194549  Carex vesicaria Geo. D. Butler 1910-7-8 1666 Siskiyou Log Lake Shackleford Creek 1219 Comment
  HSC30551  Carex vesicaria Frederick W. Oettinger 1968-9-4 693 Siskiyou Marble Mtn. Wilderness Area, W shore of Abbotts Lake 1723 Comment
  CHSC110082  Carex viridula subsp. viridula Barbara L. Wilson; Richard E. Brainerd 2010-8-10 16311 Siskiyou Klamath National Forest, along road 41N03, 3.3 miles from road 2H001. 1704 Comment
  HSC19023  Castilleja applegatei J. O. Sawyer 1969-6-12 920 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC19031  Castilleja applegatei J. O. Sawyer 1969-7-3 1054 Siskiyou SE facing slope above Horse Range Creek 1616 Comment
  HSC59942  Castilleja applegatei D. L. Goforth 1979-7-19 258 Siskiyou Trinity Alps Wild Area, Carbiou Lakes Basin 2134 Comment
  HSC63263  Castilleja applegatei M. A. Baker 1979-7-31 1101 Siskiyou Johnson's Hunting Grounds, near border of wilderness Comment
  HSC20503  Castilleja applegatei subsp. pinetorum R. C. Wunner 1965-6-7 109 Siskiyou Lava Beds National Monument, Mammoth Crater 1616 Comment
  HSC77352  Castilleja applegatei subsp. pinetorum L. P. Janeway 1983-8-7 518 Siskiyou Near end of Rd. 17N32 (the S Fork Indian Cr. Rd.), 19 mi. from the Indian Creek Rd. 1555 Comment
  JEPS23769  Castilleja applegatei subsp. pinetorum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6826 Siskiyou just n and below Scott Mountain road summit; Scott Mountain 1615 Comment
  JEPS6837  Castilleja applegatei subsp. pinetorum H. A. Thomas and J. H. Thomas 1954-7-21 4423 Siskiyou about 6 mi se Cecilville (w side of Rush Creek); Salmon-Trinity Mts. 1158 Comment
  UC1190240  Castilleja applegatei subsp. pinetorum Ira L. Wiggins 1955-7-24 13486 Siskiyou ridge between upper reaches of China Creek and Blind Horse Creek 1463 Comment
  UC1374840  Castilleja applegatei subsp. pinetorum Noel H. Holmgren and Liew Fah Seong 1969-6-25 3616 Siskiyou 23 mi e McCloud (Calif Hwy 89, 1.3 mi from Shasta County line) Comment
  CAS-BOT-BC243759  Castilleja applegatei var. pinetorum Elmer I. Applegate 1935-6-6 9359 Siskiyou Caldwell Butte, Lave Beds Natjional Monument Comment
  HSC91236  Castilleja arachnoidea Jennifer Whipple 1976-6-19 1054 Siskiyou Mt. Eddy, near Dobkins Lake 2073 Comment
  RSA165516  Castilleja arachnoidea Clare B. Hardham 1961-6-30 8029 Siskiyou Near Mud Springs. Comment
  RSA46748  Castilleja arachnoidea J. T. Howell 1937-7-29 13659 Siskiyou Scott Mountain between Trinity and Siskiyou counties. Comment
  RSA80047  Castilleja arachnoidea subsp. schizotricha J. T. Howell 1939-8-4 15043 Siskiyou Marble Rim, Marble Mts 1890 Comment
  CAS-BOT-BC254109  Castilleja miniata Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Skyhigh Lake Comment
  JEPS19007  Castilleja miniata Barbe 1957-7-13 374 Siskiyou Big Flat Public Camp; Klamath National Forest 1524 Comment
  JEPS9772  Castilleja miniata Geo. D. Butler 1908-8-10 424 a Siskiyou Shackleford Creek Comment
  CAS-BOT-BC254104  Castilleja miniata Wm. Bridge Cooke 1938-7-15 11225 Siskiyou Mt. Shasta; chaparral 1676 Comment
  RSA165515  Castilleja miniata Clare B. Hardham 1961-6-30 7997 Siskiyou Siskiyou Mountains: White Mt. Comment
  HSC19020  Castilleja pruinosa J. O. Sawyer 1969-7-25 1538 Siskiyou SW facing upper slope above Sugar Lake 2210 Comment
  JEPS8023  Castilleja pruinosa Rimo Bacigalupi with L. Constance, Joe Tracy, Reid Moran, Rafael Rodriguez and Sherwin Carlquist 1951-6-16 3470 Siskiyou 2 mi w Lake Bolan (ridge, on upper watershed of Indian Creek, immed s of Oregon-Calif boundary); Siskiyou Mountains, Indian Creek 1584 Comment
  UC169089  Castilleja pruinosa Harley P. Chandler Jun 1901 1667 Siskiyou Marble Mountain; North Coast Ranges 2438 Comment
  UC705754  Castilleja pruinosa Marion Ownbey, Fred G. Meyer 1940-7-7 2218 Siskiyou Summit of Cayenne Ridge; Marble Mountain Comment
  POM42525  Castilleja pruinosa Geo. D. Butler 1910-4-19 1198 Siskiyou Near Yreka. Comment
  JEPS1755  Castilleja schizotricha Freed Hoffman 1951-7-12 4048 Siskiyou about 8 mi above Scott River (Hammond's Camp (stock-raising), on Kelsey Creek); Marble Mountains, Kelsey Creek 1828 Comment
  UC164276  Castilleja schizotricha Geo. D. Butler 1910-7-9 1711 Siskiyou Woody Creek Comment
  RSA42530  Castilleja schizotricha Geo. D. Butler 1910-7-9 1712 Siskiyou Marble Mountain. 1829 Comment
  UC1025089  Castilleja tenuis Leo Whitney 1934-6-29 1732 Siskiyou near Antelope Creek (near Tennant) 1463 Comment
  CAS-BOT-BC48704  Ceanothus cordulatus A. A. Heller 1905-6-16 8051 Siskiyou Near Sisson Comment
  UC79966  Ceanothus cordulatus T. S. Brandegee 1889-7-1 Siskiyou Sisson Comment
  CAS-BOT-BC126854  Ceanothus cuneatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53421 Siskiyou East side of Scott Valley, 10 miles south of Fort Jones on road to Callahan 853 Comment
  RSA639073  Ceanothus cuneatus Louis C. Wheeler 1958-8-19 7402 Siskiyou Seiad Creek Mine. Comment
  UC163698  Ceanothus cuneatus var. cuneatus Geo. D. Butler 1910-5-28 1418 Siskiyou near Yreka Comment
  CAS-BOT-BC50692  Ceanothus integerrimus var. macrothyrsus Alice Eastwood 1912-7-23 1316 Siskiyou Dunsmuir Comment
  HSC101755  Ceanothus integerrimus var. macrothyrsus J. P. Smith, J. O. Sawyer 2011-9-3 13403 Siskiyou Along Klamath National Forest Road 47N01. 738 Comment
  SEINET5430944 Image available Ceanothus jepsonii Ross C. Clark, Bob Harvey; Chris Harvey 23913 Siskiyou Town of Mt. Shasta. Comment
  CAS-BOT-BC52113  Ceanothus prostratus Donald Myrick 1961-6-20 268 Siskiyou near Mt. Shasta City Comment
  CAS-BOT-BC52122  Ceanothus prostratus L. E. Smith 1913-5-12 201 Siskiyou Dunsmuir Comment
  CAS-BOT-BC53097  Ceanothus prostratus Wm. Bridge Cooke 1938-6-17 11015 Siskiyou Mount Shasta - Sisson Southern Trail 1371 Comment
  HSC33967  Ceanothus prostratus J. P. Smith 1974-5-25 7433 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  UC79810  Ceanothus prostratus Katharine Brandegee July 1889 71 Siskiyou Sisson's Comment
  HSC69523  Ceanothus pumilus Maralyn A. Renner 1980-6-26 1285 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  UC909375  Ceanothus pumilus Ira L. Wiggins 1950-5-28 12365 Siskiyou ca 1.5 mi e Scott Mountain Road; margins of Carmen Lake, e of Scott Mountain Road 1737 Comment
  UC163692  Ceanothus sanguineus Geo. D. Butler 1909-5-30 771 Siskiyou Humbug Mountains Comment
  HSC19307  Ceanothus velutinus J. O. Sawyer 1968-9-9 650 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  RSA238028  Ceanothus velutinus Frederick W. Oettinger 1967-8-26 323 Siskiyou English Peak near the summit and covering a small solid area. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2226 Comment
  RSA398982  Ceanothus velutinus M. B. Dunkle 1944-7-7 9074 Siskiyou Deer Creek. 1768 Comment
  SEINET8582822  Centaurium exaltatum L. C. Wheeler 1935-7-3 3646 Siskiyou Shasta River, 2 miles NW of Montague. 762 Comment
  CAS-BOT-BC288796  Centromadia fitchii Louis C. Wheeler 1934-10-6 3309 Siskiyou Shasta Valley 2 miles SE of Yreka 853 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
  CAS-BOT-BC384987  Cerastium dichotomum T. C. Fuller 1962-5-18 8475 Siskiyou B. M. Long prop., Little Shasta Rd., 5 mi. e. of Montague Comment
  UC15101 Image available Cercis occidentalis Milo S. Baker 1893-6 Siskiyou 6 mi below Bartles; McCloud River Comment
  CAS-BOT-BC147682  Cercocarpus betuloides var. betuloides L. E. Smith 1913-5-28 s.n. Siskiyou Yreka Comment
  HSC18571  Cercocarpus ledifolius R. C. Wunner 1965-7-15 393 Siskiyou Lava Beds NM, Indian Wells near N Prefab 1433 Comment
  HSC18572  Cercocarpus ledifolius D. M. Thomson 1965-7-10 122 Siskiyou California Lava Beds National Monument, by Information Center parking lot Comment
  RSA120777  Cercocarpus ledifolius G. D. Barbe 1955-7-29 315 Siskiyou below a serpentine outcropping on a Knott NW of Scott Mtn. 1738 Comment
  CAS-BOT-BC276781  Chaenactis douglasii var. douglasii K. T. Stillman 1976-7-21 279 Siskiyou Marble Mountain Wilderness Area 1981 Comment
  HSC92684  Chaenactis douglasii var. douglasii Jennifer Whipple 1976-7-14 1471 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  JEPS44093  Chaenactis douglasii var. douglasii W. B. and V. G. Cooke 1965-7-12 35177 Siskiyou Bolem Road Mt. Shasta 1524 Comment
  CAS-BOT-BC276763  Chaenactis douglasii var. douglasii Elmer I. Applegate 1935-1-1 3867 Siskiyou Top of Redshale Mountain, E of Medicine Lake 2438 Comment
  RSA11887  Chamaebatiaria millefolium Elmer I. Applegate 1932-6-13 7240 Siskiyou Captain Jack's Stronghold, Modoc Lava Beds Comment
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Feb 10 2013
  UC1127954  Chamaebatiaria millefolium M. H. Mitchell 1936-5-21 24 Siskiyou Modoc Lava Beds National Monument, Frozen River Cave Frozen River Cave; Modoc Lava Beds National Monument, Frozen River Cave 1348 Comment
  RSA593940  Chamaecyparis lawsoniana L. C. Wheeler 1963-9-5 8350 Siskiyou Siskiyou Mountains. Sanger Lake. Comment
  RSA142662  Chamaecyparis nootkatensis Al Hobart 1961-7-13 5 Siskiyou Mt. Preston 2134 Comment
  UCD77517  Chamaesaracha nana Robert E. Preston 2002-6-20 1823 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope. 1888 Comment
  RSA432491B  Chamaesyce serpillifolia W. Bridge Cooke 1939-7-7 13578 Siskiyou Wagon Camp Road at Howard. Also seen commonly along the old MacBride Spring Road. Comment
  UC583154  Chamaesyce serpyllifolia Lewis S. Rose 1936-7-29 36702 Siskiyou Shasta Springs 762 Comment
  CAS-BOT-BC68201  Cheilanthes gracillima John Thomas Howell 1939-8-3 14995 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC69638  Cheilanthes gracillima Maralyn A. Renner 1980-6-26 1272 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  UC1408842  Cheilanthes gracillima Frederick W. Oettinger 1968-8-5 405 Siskiyou Shasta Ridge which runs n-s between Diamond Lake and English Peak; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 2072 Comment
  UC1483406  Cheilanthes gracillima John Palmer 1980-7-24 663 Siskiyou Dillon Divide; Klamath Nat'l Forest, Dillon Mt Quadrangle 1706 Comment
  HSC29473  Cheilanthes gracillima Frederick W. Oettinger 1968-8-5 405 Siskiyou Marble Mtn. Wilderness Area, 'Shasta Ridge' between Diamond Lake and English Peak 2073 Comment
  HSC78315  Cheilanthes gracillima L. P. Janeway 1983-9-22 687 Siskiyou Ridge NW of Poker Flat (the Siskiyou crest) 1585 Comment
  POM23315  Cheilanthes gracillima E. B. Copeland 1903-7-16 3505 Siskiyou Mt. Shasta. 3171 Comment
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Jan 23 2011
  UC851002  Chenopodium album A. A. Heller 1915-8-24 12212 Siskiyou Metcalf's Ranch Mt. Eddy (ne base of mt.) 1188 Comment
  UC851136  Chenopodium foliosum L. E. Smith 1914-6-24 722 Siskiyou Sisson Comment
  RSA64788  Chenopodium vulvaria L. C. Wheeler 1934-10-6 11412 Siskiyou Edge of path, Yreka. 793 Comment
  CAS-BOT-BC451443  Chimaphila menziesii J. H. Thomas 1954-5-14 4174 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles SE of Cecilville 1219 Comment
  UC21639  Chimaphila menziesii Brewer 1862-9-16 1413 Siskiyou Camp 98 1828 Comment
  HSC142  Chimaphila umbellata William J. Ferlatte 1966-8-3 271 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's. 1524 Comment
  HSC92972  Chimaphila umbellata Jennifer Whipple 1977-8-5 2177 Siskiyou Wagon Creek drainage on E face of Mt. Eddy 2317 Comment
  POM208524  Chorizanthe membranacea Louis C. Wheeler 1934-6-9 2665 Siskiyou Klamath River between Dutch Creek and Deadman Gulch, Siskiyou Mountains 671 Comment
  UCR21087  Chrysanthemum leucanthemum T. W. Fisher, Earl R. Oatman, Robert Orth 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  CAS-BOT-BC36246  Chrysolepis sempervirens Mrs. H. P. Bracelin 1931-6-19 408 Siskiyou North side of Mt. Eddy, up from Metcalf's ranch house 1341 Comment
  CAS-BOT-BC36249  Chrysolepis sempervirens R. Tallent 1987-8-12 904 Siskiyou Klamath National Forest, Long Gulch Lake 1121 Comment
  SBBG1291  Chrysolepis sempervirens H. and M. Dearing 1948-9-12 6736 Siskiyou Mt Shasta Comment
  RSA120893  Chrysolepis sempervirens Milo S. Baker 1957-6-16 13143 Siskiyou Trip to Scott Mt. from turn off near Callahan at a point just below Pinus ponderosa zone. Comment
  JEPS83581  Chrysothamnus humilis Dean Wm. Taylor, Glenn L. Clifton, and R. Doug Stone 1987-8-7 9253 Siskiyou on crater floor at n interior Lava Beds National Monument, Caldwell Butte 1499 Comment
  RSA594178  Chrysothamnus nauseosus subsp. albicaulis S. O. Mattoon 1978-9-23 47 Siskiyou Shasta Valley, Stewart Springs Road; vicinity of Weed 854 Comment
  CAS-BOT-BC100856  Chrysothamnus viscidiflorus subsp. viscidiflorus Geo. D. Butler 1910-7-20 1731 Siskiyou Goosenet foothills 1524 Comment
  CAS-BOT-BC190008  Cinna latifolia J. M. Tucker 1963-8-19 3775 Siskiyou Marble Mountain Wildnerness Area. Headwaters of Canyon Creek. 1950 Comment
  HSC19172  Circaea alpina subsp. pacifica J. O. Sawyer 1969-7-24 1516 Siskiyou SE facing slope W of Sugar Lake 1905 Comment
  UCD77549  Circaea alpina subsp. pacifica Robert E. Preston 2001-6-23 1544 Siskiyou Klamath National Forest, N slope of Rainbow Mtn. 1706 Comment
  CHSC91197  Cirsium cymosum Lowell Ahart; John Dittes 2005-6-10 12056 Siskiyou Meadow area, on the west side of a poor dirt road, about 1.6 miles (air) south of Highway 99/97 Cutoff, about 5 3/4 miles (air) east-southeast of Grenada. 799 Comment
  CAS-BOT-BC279893  Cirsium douglasii var. breweri Alice Eastwood 1917-9-2 6667 Siskiyou Shasta Springs Comment
  CAS-BOT-BC279881  Cirsium douglasii var. breweri A. A. Heller 1927-8-1 14437 Siskiyou Near Deetz, just north of Shasta City Comment
  CAS-BOT-BC285574  Cirsium occidentale var. candidissimum Alice Eastwood 1912-8-28 1957 Siskiyou Cantara Comment
  CDA15400  Cirsium occidentale var. candidissimum G. F. Hrusa 1997-9-18 14107 Siskiyou Summit of Pass between Callahan & Gazelle, W of Mountain House. Comment
  CAS-BOT-BC288007  Cirsium occidentale var. candidissimum W. R. Dudley 1901-8-26 s.n. Siskiyou 2 miles east of Callahan's, Salmon Mts. Comment
  CDA21700  Cirsium ochrocentrum subsp. ochrocentrum F. D. Horn, T. R. Haig 1979-9-19 Siskiyou Near Macdoel. 0 Comment
  CAS-BOT-BC288766  Cirsium remotifolium Thomas W. Nelson; Jane P. Nelson 1980-7-19 6197 Siskiyou Coffee Creek Quad. Along FS Road 39N01 ca 1 mile from junction with FS Rd 39N01 365 Comment
  RSA0070872  Cirsium remotifolium David J. Keil, Kathleen Keil, Mary Faustini 1990-7-28 s.n. Siskiyou Klamath National Forest. Marble Mountain Wilderness, Rye Creek Trail. Comment
  JEPS109258  Cirsium remotifolium var. rivulare D. W. Taylor 2002-7-27 18277 Siskiyou Salmon Mountains, logging road ca 1 mile N of Carter Meadow Summit, 8 miles SW of Callahan. Comment
  CAS-BOT-BC286473  Cirsium scariosum David D. Keck 1949-7-19 6350 Siskiyou 2 mi. S. of Grenada 777 Comment
  UC165437  Cirsium scariosum Geo. D. Butler 1909-6-13 977 Siskiyou near Oro Fino Comment
  CAS-BOT-BC228965  Cistanthe umbellata Ira L. Wiggins 1955-7-27 13556 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC228972  Cistanthe umbellata A. A. Heller 1922-7-15 13695 Siskiyou At Medicine Lake 2133 Comment
  CAS-BOT-BC228986  Cistanthe umbellata Donald Myrick 1961-6-20 272 Siskiyou Near Mt. Shasta City Comment
  CAS-BOT-BC228977  Cistanthe umbellata Edna Kelsey 1961-8-1 s.n. Siskiyou Mable Mts., Cuddhyi Lake [Cuddihy Lakes] Comment
  POM259020  Clarkia lassenensis W. Bridge Cooke 1940-6-4 15023 Siskiyou Along an old logging road on the north side of the mountain near Bolam Station 1220 Comment
  CAS-BOT-BC164966  Clarkia rhomboidea H. A. Thomas; J. H. Thomas 1954-7-27 4554 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. South side of South Fork of Salmon River in vicinity of Blind Horse Creek and area 1 mile to SE 975 Comment
  HSC46174  Clarkia rhomboidea Jennifer Whipple 1978-6-5 2348 Siskiyou Weston Gulch in Scott Valley 854 Comment
  UC163798  Claytonia exigua subsp. exigua Geo. D. Butler 1909-4-17 674 Siskiyou near Yreka Comment
  HSC92978  Claytonia lanceolata Jennifer Whipple 1976-4-17 1030 Siskiyou Ridge between Durney Lake and Little Crater Lake 2378 Comment
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Sep 23 2019
  RSA0080497  Claytonia lanceolata P. A. Munz 1952-7-2 17896 Siskiyou Baldy Mountain ca. 6 miles west (by air) of Happy Camp. 1738 Comment
  CAS-BOT-BC439630  Claytonia parviflora subsp. parviflora John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53398 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  CDA17137  Claytonia rubra G. F. Hrusa 2001-6-6 15851 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  CAS-BOT-BC443816  Claytonia rubra subsp. rubra Wm. Bridge Cooke 1938-7-1 11122 Siskiyou Mount Shasta. Bear Spring. Comment
  HSC41078  Claytonia rubra subsp. rubra J. O. Sawyer 1970-4-3 2053 Siskiyou Robinsons Flat, 4 mi. E of Sawyers Bar 732 Comment
  HSC17703  Claytonia rubra subsp. rubra D. M. Thomson 1965-7-10 123 Siskiyou Lava Beds National Monument, by headquarters and information office Comment
  RSA262514  Claytonia sibirica J. M. Tucker 1974-7-28 4318 Siskiyou Haypress Meadows, Marble Mtn Wilderness Area 1463 Comment
  RSA238293  Claytonia sibirica Frederick W. Oettinger 1967-7-26 185 Siskiyou Stream bank just below Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  HSC30589  Clintonia uniflora Frederick W. Oettinger 1968-8-23 619 Siskiyou Marble Mtn. Wilderness Area, W of Upper English Lake 1768 Comment
  UCSB24415  Clintonia uniflora Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  CAS-BOT-BC500958  Clintonia uniflora Mabel E. Stonehouse 1916-6-17 s.n. Siskiyou Hilt Comment
  SEINET8472241  Clintonia uniflora G. D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek. Comment
  CDA7435  Cnicus benedictus C. S. Giebner 1965-9-2 Siskiyou Carl Black property, Scott Valley. 0 Comment
  CAS-BOT-BC238055  Collinsia L. E. Smith 1913-7-24 487 Siskiyou Mc Cloud [McCloud] Comment
  SEINET10311487 Image available Collinsia linearis Marc Baker 1980-6-20 2227 g Siskiyou Near Bald Mountain 275 Comment
  JEPS3691  Collinsia linearis Dorothy Mrs. Warren Parker 1953-5-24 537 Siskiyou Scott River; hillside 687 Comment
  UC722347  Collinsia linearis C. L. Hitchcock, J. S. Martin 1939-7-7 5232 Siskiyou road to Bolan Lake 6 mi from junction with Takilma-Happy Camp Road Bolan Lake 1767 Comment
  JEPS30108  Collinsia parviflora Al Hobart 1963-5-21 Siskiyou Poker Flat; Siskiyou Mtns; Poker Flat 1536 Comment
  UC54657  Collinsia parviflora H. M. Hall and E. B. Babcock Jun 1903 4703 Siskiyou near Upton (Sierra Nevada Mountains, Mount Shasta); Sierra Nevada Mountains, Mount Shasta 1066 Comment
  UC618897  Collinsia parviflora W. Bridge Cooke 1938-7-1 11129 Siskiyou below Wagon Camp (Mount Shasta); Mount Shasta 1676 Comment
  UC1213758  Collinsia parviflora Jean Langenheim 1957-5-19 4343 Siskiyou area along roadcut between Gazelle and Callahan Comment
  HSC74914  Collinsia rattanii J. P. Smith 1978-5-28 9951 Siskiyou Along the N Fork of the Salmon River near Little Rattlesnake Gulch 732 Comment
  UC164317  Collinsia rattanii Geo. D. Butler 1910-5-1 1262 Siskiyou Humbug Mountain Comment
  HSC62079  Collinsia rattanii Ruby Van Deventer 18 Jun [year missing] Siskiyou Raspberry Lake, 2 mi. W of Copper Mtn. Comment
  SEINET7096760  Collinsia torreyi A. G. Vestal 1955-5-16 s.n. Siskiyou Open pine country just west of Weed between tail road and highway 99 (I 15). NAD27, 41? deg. 25' 49ao, -122?_ 24' 09ao (converted to WGS84 decimal degrees) UTM Zone 10, 549920mE, 4586493mN. Comment
  RSA237358  Collinsia torreyi Frederick W. Oettinger 1967-6-24 115 Siskiyou Ridge at Etna Summit between Etna and Sawyers Bar. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  JEPS82448  Collinsia torreyi var. wrightii Gilbert Muth 1966-7-18 416 Siskiyou above Mable Valley (meadow along Marble Gap Trail); Marble Mt Wilderness Area 1828 Comment
  CHSC1227  Collomia grandiflora W. Gorsuch 1935-7-2 Siskiyou Spring Hill near Mt. Shasta City. 1158 Comment
  HSC76757  Collomia grandiflora K. T. Stillman 1976-7-21 270 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  UC164129  Collomia grandiflora Geo. D. Butler 1910-5-19 1366 Siskiyou dry land near Yreka Comment
  UC933390  Collomia grandiflora Annie M. Alexander and Louise Kellogg 1948-9-7 5590 Siskiyou at fork of road from Cecilville to First Lookout; Black Bear Summit 1524 Comment
  UCSB13154  Collomia grandiflora Breedlove, Dennis 1962-6-10 Siskiyou Indian Creek Road, 2.3 miles northwest of Happy Camp; Siskiyou Mountains 365 Comment
  HSC78207  Collomia tinctoria L. P. Janeway 1983-8-6 495 Siskiyou Poker Flat. W part of lower portion of meadow. 1529 Comment
  UC1191642  Collomia tinctoria Herbert L. Mason 1948-7-18 13606 b Siskiyou Grass Lake Comment
  UC1409300  Collomia tinctoria Frederick W. Oettinger 1969-7-11 969 Siskiyou along trail from English Lake to Diamond Lake (high lake basins in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  HSC16941  Collomia tinctoria R. C. Wunner 1965-6-15 204 Siskiyou Lava Beds N.M., SE side Caldwell Butte, 3/4 of way down Butte 1463 Comment
  HSC41071  Collomia tinctoria J. O. Sawyer 1969-7-1 993 Siskiyou Above Paynes Lake Creek 1951 Comment
  JEPS46198  Collomia tracyi Duncan Dunning 1923-6-12 Siskiyou Sawyers Bar Comment
  JEPS15750  Conium maculatum Geo. D. Butler 1909-6-26 924 Siskiyou Yreka 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
  CHSC2331  Corallorhiza maculata V. Holt 1932-6-26 Siskiyou Mt. Eddy. 1828 Comment
  HSC19041  Corallorhiza maculata J. O. Sawyer 1969-7-25 1554 Siskiyou SW facing slope S of High Lake 2149 Comment
  HSC19038  Corallorhiza mertensiana J. O. Sawyer 1969-8-4 1848 Siskiyou Slopes S of S Sugar Lake 2134 Comment
  CHSC105591  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-4 16210 Siskiyou Old Stagecoach Road, about 0.5 mile north of Forest Service road 41N26, the Eddy Creek Road, on both sides of the road. Label says +/- 33 feet of Lat. and Long. shown. 995 Comment
  SEINET13682628  Cordylanthus tenuis subsp. viscidus B. L. Wilson, R. E. Brainerd 2010-8-3 16192 Siskiyou Shasta-Trinity NF, along FR 40N43 W of Lake Siskiyou, at first creek crossing W of junction with road 26. 1063 Comment
  UC885672  Cordylanthus tenuis subsp. viscidus Alice Eastwood 1917-9-2 6664 Siskiyou Shasta Springs 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-BC212274  Cornus glabrata Louis C. Wheeler 1934-7-16 2909 Siskiyou Oak Knoll R.S., Klamath Forest 670 Comment
  CAS-BOT-BC212279  Cornus glabrata C. Hart Merriam 1907-9-24 s.n. Siskiyou Ager Comment
  HSC33970  Cornus nuttallii J. P. Smith 1974-5-25 7434 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  CAS-BOT-BC210422  Cornus sericea L. E. Smith 1913-5-27 296 Siskiyou Weed Comment
  CAS-BOT-BC210427  Cornus sericea Alice Eastwood 1921-7-24 10726 Siskiyou Castle Lake Comment
  HSC69542  Cornus sericea subsp. sericea Maralyn A. Renner 1980-8-6 2245 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  JEPS50142  Cornus sericea subsp. sericea Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou region of Upper Sacramento, Sisson region Comment
  UC375260  Corylus californica Geo. D. Butler 1908-7-12 1073 Siskiyou near Yreka Comment
  CAS-BOT-BC180196  Corylus cornuta subsp. californica J. H. Thomas; H. A. Thomas 1954-7-22 4451 Siskiyou Along banks of Bog Bend creek. Salmon - Trinity Mts. About 6 mi SE of Cecilville. Between Rush and Big Bend Creeks, 0.25-0.5 mi N of S Fork of Salmon River 975 Comment
  POM106652  Corylus cornuta var. californica Geo. D. Butler 1910-4-1 1150 Siskiyou Humbug Mountain. Comment
  HSC101756  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-9-3 13406 Siskiyou Fence row along Cole Rd. to Siskiyou Summit 910 Comment
  CAS-BOT-BC290476  Crepis acuminata John Thomas Howell 1937-7-22 13331 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UCR37825  Crepis acuminata K. T. Stillman 1976-7-15 247 Siskiyou Marble Mountain Wilderness Area, Scott Bar 15' Q. 1951 Comment
  HSC37547  Crepis monticola J. P. Smith 1974-5-27 7634 Siskiyou Along FS Rd. 47N03 1280 Comment
  UC581286  Crepis monticola G. L. Stebbins Jr. and E. B. Babcock 1936-6-11 1937 Siskiyou old river terrace about 8 mi s Yreka 1180 Comment
  HSC78312  Crepis occidentalis subsp. conjuncta L. P. Janeway 1983-8-6 494 Siskiyou Poker Flat. W part of lower portion of meadow. 1529 Comment
  HSC92864  Crepis occidentalis subsp. pumila Jennifer Whipple 1976-6-30 1196 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  CAS-BOT-BC376572  Crepis occidentalis subsp. pumila G. L. Stebbins, Jr.; J. A. Jenkins 1937-7-19 2441 Siskiyou 2 1/2 mi. northeast of Fort Jones, along highway to Yreka 850 Comment
  HSC44725  Crepis pleurocarpa J. O. Sawyer, E. Cope 1977-6-18 2904 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  HSC82002  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1979-6-16 4850 Siskiyou Along Hwy. 3, 3.1 mi. N of Scott Mtn. Summit 1280 Comment
  CAS-BOT-BC290880  Crepis pleurocarpa Gilbert Muth 1965-8-11 s.n. Siskiyou Marble Valley Comment
  OBI47579  Crepis pleurocarpa K. T. Stillman 1976-8-7 204 Siskiyou Marble Mtn Wilderness Area. Scatt Bar quad. T43N, R12W, sec 22 Comment
  JEPS93823  Crocidium multicaule Vernon H. Oswald and Lowell Ahart 1998-6-11 9197 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
  UC1473428  Cryptantha subretusa Gilbert Jerome Muth 1978-8-3 7501 Siskiyou near Houston Creek (close to town of Callahan); China Mt. Quad. 2346 Comment
  CAS-BOT-BC70483  Cryptogramma acrostichoides John Thomas Howell 1939-8-3 15006 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  SEINET11711703  Cryptogramma acrostichoides C. G. Pringle 1881-1 s.n. Siskiyou Mount Shasta 2286 Comment
  CAS-BOT-BC80543  Cupressus bakeri Oliver V. Matthews 1939-7-3 19 Siskiyou Sullivan Mine Grove; Cook and Green Region 1219 Comment
  RSA40897  Cupressus bakeri C. B. Wolf 1944-10-30 11481 Siskiyou 1mile NE of Timbered Crater, Modoc Lava Beds on Old Stage Road form Dana to Little Hot Springs Valley 1220 Comment
  UC484051  Cupressus bakeri Carl B. Wolf 1930-10-19 1746 Siskiyou 1 mi e of Timbered Butte (on old road from C. W. Hill Farm at Dana to Little Hot Springs Valley); Modoc Lava Beds 1219 Comment
  SEINET10754947  Cupressus lawsoniana Andrew Townesmith, Karen M. Meyer 2007-7-28 Townesmith 864 Siskiyou Shasta-Trinity National Forest. Along Forest Service route 26, 4.1 miles west of forest boundary. T39N R5W S10. 1277 Comment
  UCR243141  Cuscuta campestris Rob Wilson 2010-9-8 s.n. Siskiyou Near Tulelake 1232 Comment
  JEPS47092  Cuscuta cephalanthi George B. Grant 1902-9-4 5217 Siskiyou Sisson 914 Comment
  JEPS80596  Cuscuta occidentalis Gilbert Muth 1966-8-1 490 Siskiyou Marble Valley Horse Pasture Marble Mt. Wilderness Area 1792 Comment
  JEPS48635  Cuscuta suksdorfii Louis C. Wheeler 1934-7-31 3011 Siskiyou 1 mi e Dry Lake Lookout; Siskiyou Mts. 1828 Comment
  HSC45202  Cycladenia humilis J. Sawyer, E. Cope 1977-6-21 2977 Siskiyou Near Prescott Peak. 1677 Comment
  CDA30916  Cyperus odoratus M. Beyers, G. F. Hrusa 2010-8-18 697 Siskiyou Highway 96; Sluice Box Klamath River Access. 556 Comment
  CHSC2338  Cypripedium fasciculatum M. Yoder 1932-6-20 Siskiyou Castle Lake. ... Field redacted by CHSC, contact the data manager for more information 1981 Comment
  UC673564  Cypripedium fasciculatum Dorothy Tebbe 1929-7-5 131 Siskiyou Mount Eddy Comment
  UC922430  Cystopteris fragilis Annie M. Alexander and Louise Kellogg 1949-7-24 5865 Siskiyou trail to Bear Lake Paradise Lake; Marble Mts. 1920 Comment
  CAS-BOT-BC189809  Dactylis glomerata Melissa A. Berry 1957-7-1 s.n. Siskiyou Highway 97 near Hebron Summit. 1524 Comment
  HSC30539  Danthonia californica Frederick W. Oettinger 1969-9-4 1657 Siskiyou Marble Mtn. Wilderness Area, Hancock Lake. 1890 Comment
  HSC67718  Danthonia californica John Palmer 1980-7-24 618 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  UCD37076  Danthonia californica Beecher Crampton 1956-8-21 3807 Siskiyou Siskiyou County, 15 miles southwest of city of Mount Shasta, slope above Gumboot Lake, headwater of south fork of Sacramento River. 1920 Comment
  UCD60516  Danthonia californica R. Tofsrud 1948-8-3 s.n. Siskiyou Poker Flat, near Del Norte Co. border. Comment
  UCD60991  Danthonia californica R. Tofsrud 1948-8-3 Siskiyou Poker Flat, near Del Norte Co. border. Comment
  RSA233683  Danthonia intermedia R. F. Thorne, Frederick W. Oettinger 1969-8-10 38960 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows. Comment
  CAS-BOT-BC76230  Darlingtonia californica Doris K. Kildale 1929-8-25 9019 Siskiyou Near Youngs Valley on trail to Preston Peak. 1524 Comment
  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
  UCD119065  Darlingtonia californica A. H. Murphy 1956-8-16 56 T Siskiyou Klamath N.F. 1981 Comment
  CAS-BOT-BC420661  Darmera peltata Lincoln Constance; Reed C. Rollins 1942-5-13 2903 Siskiyou Klamath River at mouth of Portugese Creek, 4 miles east of Thomas Creek. 457 Comment
  CAS-BOT-BC141836  Dasiphora fruticosa Gilbert J. Muth 1969-8-8 1277 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  CHSC71601  Dasiphora fruticosa Vernon H. Oswald; Lowell Ahart 1998-8-3 9439 Siskiyou Near the Pacific Crest Trail in the Scott Mtns. west of Kangaroo Lake. 1981 Comment
  HSC76908  Dasiphora fruticosa K. T. Stillman 1976-9-10 500 Siskiyou Marble Mountain Wilderness Area, across marble on E side of Black Mountain 2104 Comment
  POM71157  Datura stramonium Geo. D. Butler 1910-7-1 1620 Siskiyou Yreka. Comment
  UC88927  Deinandra kelloggii unknown 1893-7-1 Siskiyou Quartz Mountain Comment
  SEINET1004226  Delphinium depauperatum Mark Fishbein, Lane Greer 2006-1 5883 Siskiyou Payness Creek, at road crossing below Payness Springs, about 2 mi southeast of Medicine Lake. 1975 Comment
  RSA398634  Delphinium glaucum M. B. Dunkle 1945-8-2 9272 Siskiyou Paradise Lake, Klamath National Forest, Marble Mountains. Comment
  SEINET12092406  Delphinium glaucum W. W. Eggleston 1915-1 11669 Siskiyou Crater Creek, East Fork of Scott River, Shasta Forest 1800 Comment
  HSC28664  Delphinium nuttallianum Frederick W. Oettinger 1969-7-18 1054 Siskiyou Marble Mtn. Wilderness Area, SW of Upper English Lake 1951 Comment
  CAS-BOT-BC116161  Delphinium nuttallianum Gilbert J. Muth 1966-7-17 407 Siskiyou Marble Mts. meadow on trail to Lookout. 1859 Comment
  CAS-BOT-BC118067  Delphinium nuttallianum Elmer Ivan Applegate 1895-5-29 937 Siskiyou Sisson Comment
  HSC19082  Delphinium nuttallianum J. O. Sawyer 1969-7-11 1320 Siskiyou Slope above S Fork of Sugar Creek 1982 Comment
  HSC39751  Delphinium nuttallianum J. O. Sawyer 1970-4-4 2081 Siskiyou Along Sugar Creek 823 Comment
  UCR37854  Deschampsia atropurpurea K. T. Stillman 1976-8-8 399 Siskiyou Marble Mountain Wilderness Area Comment
  HSC81765  Deschampsia cespitosa Thomas W. Nelson, Jane P. Nelson 1980-7-20 6171 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  UCD61084  Deschampsia cespitosa subsp. holciformis Sami Gray; Barbara L. Wilson 1995-9-2 8071 Siskiyou Klamath National Forest; Mount Eddy; upper end of Upper Deadfall Lake. Comment
  CHSC71339  Deschampsia danthonioides Vernon H. Oswald; Lowell Ahart 1998-6-11 9223 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
  RSA238390  Deschampsia elongata Frederick W. Oettinger 1969-8-29 1579 Siskiyou Margin of Katherine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UCD63457  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3445 Siskiyou 11 miles north of Happy Camp, rd. to Grants pass, banks of Indian Creek. Comment
  UCD63529  Deschampsia elongata Rimo Bacigalupi; Mr. and Mrs. Van Deventer of Fort Dick 1959-7-10 7298 Siskiyou Twin Valley, Siskiyou Mts., just east of Del Norte County line, about 4 miles NNE of Preston Peak; watershed of Indian Creek. 1493 Comment
  UC726511  Descurainia sophia A. A. Heller 1916-6-22 12425 Siskiyou near Sisson 1074 Comment
  CAS-BOT-BC402478  Dicentra formosa subsp. formosa H. A. Thomas; J. H. Thomas 1954-7-21 4434 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek 1219 Comment
  CAS-BOT-BC402483  Dicentra formosa subsp. formosa A. M. Vollmer; L. Beane 1951-6-2 67 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway Comment
  RSA299461  Dicentra formosa subsp. formosa J. P. Smith 1973-5-5 6480 Siskiyou Along Cook and Green Pass road. Comment
  RSA52142  Dichelostemma capitatum subsp. capitatum Dorothy Parker 1948-5-25 s.n. Siskiyou Plowman s Valley. 1067 Comment
  CAS-BOT-BC502224  Dichelostemma ida-maia Geo. D. Butler 1909-7-15 889 Siskiyou Salmon Range 1828 Comment
  UC375155  Dichelostemma multiflorum Geo. D. Butler 1909-7-20 887 Siskiyou Highland Mine Salmon Range 1828 Comment
  POM109926  Dichelostemma multiflorum Geo D. Butler 1910-5-18 1361 Siskiyou Yreka Comment
  CAS-BOT-BC290992  Dieteria canescens var. shastensis Louis C. Wheeler 1934-8-24 3218 Siskiyou Trapper Creek, Siskiyou Mts. 1859 Comment
  CAS-BOT-BC290997  Dieteria canescens var. shastensis Louis C. Wheeler 1934-8-24 3218 Siskiyou Klamath National Forest. Trapper Creek 1859 Comment
  CAS-BOT-BC291011  Dieteria canescens var. shastensis Louis C. Wheeler 1934-8-24 3218 Siskiyou Trapper Creek, Siskiyou Mts. 1859 Comment
  JEPS45940  Dieteria canescens var. shastensis Rimo Bacigalupi, and L. R. Heckard 1966-6-20 9184 Siskiyou on n side Mt. Shasta (along upper part of Bolam Logging road) 1676 Comment
  UCSB63902  Dieteria canescens var. shastensis Oswald, Vernon; Ahart, Lowell 1997-7-28 Siskiyou Forest Route 56 (42N56)3.7 mi. east of Forest Route 49, edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave; T42N R4E NE1/4 NE1/4 Sect.6 1755 Comment
  CAS-BOT-BC131054  Dimeresia howellii Dean Wm. Taylor; Glenn L. Clifton; R. Doug Stone 1987-8-7 9250 Siskiyou Caldwell Butte, Lava Beds National Monument 1499 Comment
  CAS-BOT-BC153303  Diplacus kelloggii J. H. Thomas 1954-5-13 4156 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. Along Rush Creek 1127 Comment
  SEINET260462 Image available Diplacus nanus David M. Thompson 1989-1 1022 Siskiyou 10.0 mi NE of Weed along Hwy 97 NW side of rd 1150 Comment
  CAS-BOT-BC153736  Diplacus nanus Lillian S. Mott 1967-7-2 LM 6759 Siskiyou Highway 97 near Cougar 1371 Comment
  SEINET8211074  Diplacus nanus W. B. Cooke, V. G. Cooke 1966-7-16 37213 Siskiyou above Hotlum Station, Mt. Shasta. 1676 Comment
  HSC29232  Dodecatheon alpinum Frederick W. Oettinger 1969-7-15 1029 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: midway between Tom Taylor Cabin and English Peak Summit 1997 Comment
  RSA238726  Dodecatheon alpinum subsp. majus Frederick W. Oettinger 1966-8-7 45 Siskiyou Below Tom Taylor Cabin Springs. The Salmon Mountains. The High Lake Basins in the vicinity of English peak. Marble Mountain Wilderness Area. 2043 Comment
  UC1053435  Dodecatheon hendersonii Rimo Bacigalupi, Arthur Holmgren 1950-4-24 3139 Siskiyou opposite town Dunsmuir (on e side of canyon, Cliffs along Sacramento River); along Sacramento River, opposite Dunsmuir Comment
  RSA461379  Dodecatheon hendersonii Anstruther Davidson 1920-01 s.n. Siskiyou [Unspecified] Comment
  HSC19085  Dodecatheon jeffreyi J. O. Sawyer 1969-7-3 1039 Siskiyou Near Lipstick Lake 1951 Comment
  POM259603  Dodecatheon jeffreyi J. T. Howell 1939-8-3 14950 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  JEPS94787  Downingia bacigalupii Vernon H. Oswald and Lowell Ahart 1998-7-21 9363 Siskiyou 0.9 mi sw of Tennant Road (between Weed and Macdoel on Highway 97); Highway 97 1188 Comment
  JEPS94842  Downingia pulcherrima Vernon H. Oswald and Lowell Ahart 1998-7-21 9333 Siskiyou on s side of Tennant Road 0.4 mi se of Old State Highway to Bray (ne of Weed and e of Grass Lake at a gravel pit); s side of Tennant Road 1402 Comment
  RSA516617  Downingia yina R. C. Bacigalupi, Lincoln Constance, M. Hiroe 1956-6-9 5696 Siskiyou Along U.S. Hwy 99, 1.5 mile N of Weed, Shasta Valley. 976 Comment
  HSC44783  Draba aureola S. Horner 1977-7-19 209 Siskiyou Siskiyou-Trinity county line Comment
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Jul 7 2020
  RSA211442  Draba carnosula William J. Ferlatte 1967-8-20 1055 Siskiyou Caribou Basin, Sawtooth Ridge. 2043 Comment
  UCD115052  Draba howellii W. C. Overton Jr. 1977-7-10 s.n. Siskiyou Along trail from Big Flat Campground to Sunrise Pass (between the headwaters of Gulick Creek to the NW and Sunrise Creek to the SE) between where it crosses contour lines 7280 and summit at ca. 7440 feet, Klamath National Forest. 2218 Comment
  SEINET5342912  Draba howellii G. Butler 1910-7-10 1716 Siskiyou In rock crevices-Marble mountain. 1676 Comment
  RSA186335  Draba pterosperma Gilbert Muth 1966-10-19 31 Siskiyou Marble Mountains 1793 Comment
  RSA186336  Draba pterosperma Gilbert Muth 1966-10-19 31 Siskiyou Marble Mountains 1793 Comment
  JEPS18871  Draperia systyla Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-26 5965 Siskiyou Canyon at the headwaters of the South Fork of Sacramento River, about 3.5 miles below southwest of the town of Mt. Shasta [formerly Sisson] 1371 Comment
  HSC40051  Drymocallis glandulosa var. glandulosa J. O. Sawyer 1970-7-4 2327 Siskiyou At Cedar Flat Cabin 1402 Comment
  CAS-BOT-BC159438  Drymocallis glandulosa var. glandulosa Dorothy Parker 1950-6-15 455 Siskiyou Along Kidder Creek 914 Comment
  HSC134  Drymocallis lactea var. lactea William J. Ferlatte 1967-6-30 598 Siskiyou Josephine Lake basin 1677 Comment
  HSC48373  Drymocallis rhomboidea J. O. Sawyer 1969-6-10 802 Siskiyou S face near Sugar Lake 1829 Comment
  CAS-BOT-BC158418  Drymocallis rhomboidea Louis C. Wheeler 1934-6-19 2732 Siskiyou Klamath National Forest 1432 Comment
  UCD98724  Dysphania botrys A. A. Heller 1916-8-24 12564 Siskiyou near Sisson. 1077 Comment
  OBI80338  Elatine chilensis David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. Paradise Lake. 1865 Comment
  UC1265387  Eleocharis acicularis Frederick W. Oettinger 1968-9-3 673 Siskiyou vicinity of English Peak (Horse Range Lake, N side); Salmon Mountains, Marble Mountain Wilderness Area, High Lake 1821 Comment
  SEINET7583464 Image available Eleocharis acicularis Frederick W. Oettinger 1969-8-15 1387 Siskiyou Salmon Mountains, vicinity of English Peak Marble Moutain Wilderness Area, inlet to Upper English Lake. 1768 Comment
  CAS-BOT-BC113419  Eleocharis bella Alice Eastwood 1921-7-25 10849 Siskiyou Bigelows, McCloud River. Comment
  HSC30717  Eleocharis bella Frederick W. Oettinger 1968-9-3 673 Siskiyou Marble Mtn. Wilderness Area, N side of Horse Range Lake 1822 Comment
  JEPS109699  Eleocharis decumbens Dean W. Taylor 2002-7-20 18263 Siskiyou Forest Road 17 ca. 4.9 road miles (above) junction with Stewart Springs Road, Parks Creek 1737 Comment
  JEPS125883  Eleocharis engelmannii Dean W. Taylor 1996-7-27 15865 Siskiyou Klamath National Forest; Grass Lake, about 15 air miles NE of Weed. Comment
  RSA603996  Elymus L. C. Wheeler 1934-8-14 3132 Siskiyou White Mountains 1768 Comment
  CAS-BOT-BC227910  Elymus elymoides K. T. Stillman 1976-7-23 304 Siskiyou Marble Mountain Wilderness Area 2011 Comment
  RSA238986  Elymus elymoides Frederick W. Oettinger 1968-8-8 456 Siskiyou Crapo Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  HSC38384  Elymus elymoides var. elymoides A. M. Montalvo, J. D. Ackerman 1974-7-2 344 Siskiyou E slope of Eddy Mtn., on rd. to Deadfall Lakes and Morgan Meadows. 1524 Comment
  UC224203  Elymus glaucus E. Palmer 1892-1 2652 Siskiyou near Mt. Shasta Comment
  CAS-BOT-BC206600  Elymus glaucus subsp. glaucus Wm. Bridge Cooke; V. G. Cooke 1966-7-17 37252 Siskiyou Widow Springs, Mt. Shasta 1524 Comment
  HSC39091  Elymus repens A. M. Montalvo, J. D. Ackerman 1974-7-2 345 Siskiyou E slope of Mt. Eddy, near Morgan Meadows, W of Mt Shasta City. Comment
  UCD62634  Elymus trachycaulus L. Whitney 1934-6-29 2227 Siskiyou Antelope Creek, near Tennant. 1463 Comment
  UCD62653  Elymus trachycaulus subsp. trachycaulus Robert E. Preston 2002-7-14 1926 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 1754 Comment
  RSA68920  Epilobium angustifolium var. intermedium A. E. Culbertson 1943-8-1 37 Siskiyou Castle Lake. 14 miles s.w. of Mt. Shasta on n side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles at its headwaters to the west. 1657 Comment
  RSA50185  Epilobium angustifolium var. macrophyllum E. K. Balls 1949-7-8 13922 Siskiyou Road from Scott Mountain to Callahan, southern Siskiyou county. 1372 Comment
  UC164268  Epilobium brachycarpum Geo. D. Butler 1910-7-3 1629 Siskiyou Goosenest foothills 1219 Comment
  HSC26762  Epilobium brachycarpum J. P. Smith, J. O. Sawyer 1971-9-18 4851 Siskiyou 3.9 mi. from the junction of S.R. 3 and Rd. 8 near Callahan 1189 Comment
  RSA240051  Epilobium brachycarpum Frederick W. Oettinger 1969-8-12 1339 Siskiyou Along Main, North Fork Trail, between Yellow Dog Creek and Abbott s Lower Cabin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  RSA768924  Epilobium ciliatum subsp. ciliatum L. Ahart, John Dittes 2010-7-30 16952 Siskiyou Edge of the Shasta River, about 50-100 yards from the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 air miles southwest of Big Springs Lake, 4.6 air miles northwest of Dwinnel Dam, 5.7 air miles southeast of Grenada. 717 Comment
  POM171587  Epilobium ciliatum subsp. ciliatum Doris K. Kildale 1928-8-18 6479 Siskiyou Near head of north fork of Salmon River at English Lake 1524 Comment
  UC84475  Epilobium densiflorum Dr. E. B. Copeland 1903-7-7 3543 Siskiyou Hornbrook Comment
  RSA126052  Epilobium glaberrimum subsp. glaberrimum I. L. Wiggins 1955-7-22 13452 Siskiyou South Fork of Salmon River, 9.5 miles above Cecilville. 1067 Comment
  HSC91952  Epilobium hallianum Jennifer Whipple 1976-7-8 1347 Siskiyou SW of Dobkins Lake along drainage into the lake 2256 Comment
  UCD80893  Epilobium hallianum Robert E. Preston 2001-7-21 1721 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mtn. 2066 Comment
  POM259014  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1940-8-8 15439 Siskiyou Mount Shasta: Along Squaw Valley Creek 2439 Comment
  RSA237388  Epilobium hornemannii subsp. hornemannii Frederick W. Oettinger 1969-8-1 1134 Siskiyou Above wiregrass meadow, English Lake basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1707 Comment
  POM259601  Epilobium lactiflorum J. T. Howell 1939-8-2 14868 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  UC873437  Epilobium minutum Louis C. Wheeler 1935-6-9 3551 Siskiyou Yreka Creek Siskiyou Mts. 1219 Comment
  POM171633  Epilobium minutum Doris K. Kildale 1929-7-20 8690 Siskiyou Raspberry Lake, upper Indian Creek 1829 Comment
  POM215871  Epilobium minutum Louis C. Wheeler 1935-6-9 3551 Siskiyou Yreka Creek, Siskiyou Mountains. 1220 Comment
  RSA299463  Epilobium minutum J. P. Smith 1973-5-5 6521 Siskiyou Scott Bar along the Scott River. Comment
  HSC92073  Epilobium siskiyouense Jennifer Whipple 1976-7-24 1558 Siskiyou SW of Dobkins Lake along the drainage into the lake 2287 Comment
  RSA264944  Epilobium siskiyouense Gilbert Muth 1975-7-30 s.n. Siskiyou Near Kangaroo Mountain near Red Bluff. 1951 Comment
  SEINET208833 Image available Equisetum arvense E. L. Smith, R Maguire 1967-5-22 Siskiyou City of Mt Shasta 1086 Comment
  HSC22470  Equisetum hyemale subsp. affine J. O. Sawyer 1969-6-11 826 Siskiyou Lower slope next to the C.C.C. road on the N fork of Horse Range Creek 1357 Comment
  RSA591595  Eragrostis cilianensis L. C. Wheeler 1934-10-24 3346 Siskiyou Oak Knoll Ranger Station, Klamath River; Siskiyou Mts. 671 Comment
  RSA602818  Eragrostis cilianensis L. C. Wheeler 1935-7-20 3674 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  HSC67515  Eremogone congesta J. P. Smith, Steve Selva 1970-7-15 4360 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  CAS-BOT-BC174220  Eremogone congesta var. congesta K. T. Stillman 1976-6-25 94 Siskiyou Marble Mountain Wilderness Area. Between Marble Gap & Elk Valley trail Comment
  CAS-BOT-BC168846  Eremogone congesta var. congesta Milo S. Baker 1926-8-8 242 -26 Siskiyou Between Red Mt. and Granite Peak 2194 Comment
  HSC29467  Eremogone congesta var. congesta Frederick W. Oettinger 1969-8-4 395 Siskiyou Marble Mtn. Wilderness Area, trail break on Crapo Peak ridge 2195 Comment
  HSC16948  Eriastrum sparsiflorum R. C. Wunner 1965-7-13 388 Siskiyou Lava Bed National Monument, along fire rd. around Crescent Butte-Lone Pine Flat Rd. 1479 Comment
  JEPS81785  Ericameria bloomeri Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6779 Siskiyou near beginning of road to Wagon Camp (just off Everitt Memorial Highway, lower slopes of Mt. Shasta); Mt. Shasta 1737 Comment
  UC1034045  Ericameria bloomeri W. B. Cooke 1941-8-21 16215 Siskiyou on the n side Diller Canyon (at timberline on the w side of Shastina); Mt. Shasta, Shastina, Diller Canyon 2438 Comment
  UC86517  Ericameria bloomeri J. D. Hooker and A. Gray 1877-1 Siskiyou n base Shasta Comment
  CAS-BOT-BC287493  Ericameria greenei Louis C. Wheeler 1934-8-24 3220 Siskiyou Trapper Creek, Siskiyou Mts 1859 Comment
  RSA236428  Ericameria greenei D. V. Hemphill 1972-8-22 2073 Siskiyou English Peak, Salmon Mts. 2165 Comment
  HSC5325  Ericameria nauseosa D. M. Thomson 1965-7-31 160 Siskiyou Lava Beds National Monument, 1 mi. S of dump on telephone line road Comment
  CAS-BOT-BC298253  Ericameria nauseosa var. oreophila Peter H. Raven 1956-9-5 10464 Siskiyou North Fork of the Sacramento River 1828 Comment
  UC87229  Ericameria nauseosa var. oreophila K. Brandegee 1887-7-1 Siskiyou Gazelle Comment
  CAS-BOT-BC299473  Ericameria nauseosa var. speciosa Gilbert J. Muth 1966-8-7 503 Siskiyou Lookout trail along ridge, Marble Mts. 2057 Comment
  SEINET516140  Ericameria nauseosa var. speciosa Vernon H. Oswald 1998-9-16 9630 Siskiyou Butte Valley National Grassland near the juction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  UCD70112  Ericameria pinifolia D. Sanchez-Mata 1997-9-18 s.n. Siskiyou Mount Shasta-McCloud close to Snowmans Hill. Mount Shasta basis. Knobcone pine forests (Pinus attenuata). 1650 Comment
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Jul 18 2018
  CHSC99715  Erigeron aliceae L. P. Janeway 2008-7-24 9485 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. 2050 Comment
  HSC29242  Erigeron aliceae Frederick W. Oettinger, R. F. Thorne 1969-8-4 1185 Siskiyou Marble Mtn. Wilderness Area, N of Tobacco Lake 1890 Comment
  UCR266169  Erigeron aliceae David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains, Klamath National Forest, Rye Patch Creek Trail 1700 Comment
  CAS-BOT-BC294505  Erigeron bloomeri var. bloomeri L. S. Smith 1917-5-27 s.n. Siskiyou Yreka Comment
  CAS-BOT-BC294897  Erigeron cervinus Ira L. Wiggins 1955-7-27 13518 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA715807  Erigeron divergens L. Ahart, John Dittes 2005-6-10 12080 Siskiyou South edge of irrigation pasture, east of a poor dirt road, about 80 yards northeast 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
  RSA93191  Erigeron elegantulus F. W. Peirson 1923-7-19 3873 Siskiyou 17 miles north of Bray Comment
  HSC24898  Erigeron filifolius Richard Spjut 1970-7-24 869 Siskiyou 30mi N of Weed on Hwy. 97 1524 Comment
  RSA90921  Erigeron foliosus var. confinis F. W. Peirson 1926-7-11 7024 Siskiyou High mountain ridge, summit of grade west of Etna or Etna Mills 1982 Comment
  RSA44886  Erigeron foliosus var. hartwegii J. C. Roos 1948-9-1 3950 Siskiyou Summit of pass SW of Etna Comment
  HSC69353  Erigeron glacialis var. glacialis Maralyn A. Renner 1980-8-21 2578 Siskiyou Kidd Creek 2043 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
  UC1409451  Erigeron inornatus var. inornatus Frederick W. Oettinger 1969-8-12 1348 Siskiyou along trail above Willow Springs (between Abbott's Upper Cabin and English Lake, in the vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  UC163916  Erigeron inornatus var. inornatus Geo. D. Butler 1910-6-17 1570 Siskiyou Humbug <?> Mountain 1066 Comment
  UC1299252  Erigeron klamathensis Freed W. Hoffman 1950-7-13 3552 Siskiyou W Siskiyou County Baldy Mountain Comment
  JEPS41446  Erigeron petrophilus var. petrophilus Geo. D. Butler 1910-7-9 1786 Siskiyou Shackleford Creek 1371 Comment
  CAS-BOT-BC300082  Erigeron philadelphicus Ira L. Wiggins 1955-7-25 13506 Siskiyou Ditch head on Rush Creek, Mountain View Ranch 1005 Comment
  CAS-BOT-BC300087  Erigeron philadelphicus A. Eastwood 1921-7-30 s.n. Siskiyou Shasta Springs Comment
  UCD132043  Erigeron philadelphicus var. philadelphicus John M. Tucker; Louis K. Mann 1963-7-4 3689 Siskiyou beside road from Etna to Sawyer's Bar, ca. 4.7 miles (by road) southwest of Etna. Comment
  RSA153440  Erigeron strigosus Francia Chisaki, Helen Sharsmith 1960-8-20 4739 Siskiyou On Wildcat Canyon Road ca. 4 miles west of Callahan 1067 Comment
  CAS-BOT-BC224141  Eriodictyon californicum Alice Eastwood 1912-7-20 1248 Siskiyou Hornbrook Comment
  SBBG21908  Eriodictyon lobbii D. Myrick 1964-7-25 951 Siskiyou Shasta Ski Bowl Hwy, Mt Shasta 1524 Comment
  HSC92093  Eriogonum alpinum Jennifer Whipple 1978-10-6 2411 Siskiyou E face of ridge above Dale Creek Drainage 2256 Comment
  HSC17407  Eriogonum compositum var. compositum Dorothy Parker 1949-7-10 344 Siskiyou Siskiyou Mtns., 2 mi. from summit of Salmon Mtn. 1829 Comment
  HSC42984  Eriogonum compositum var. compositum J. P. Smith 1976-5-4 8667 Siskiyou SR 263 near junction with SR 96, above Shasta River 671 Comment
  JEPS98387  Eriogonum congdonii Vernon H. Oswald 2000-8-28 9958 Siskiyou Rock Fence Lake Road (40N18) 0.6 mi from its jct. with Kangaroo Lake Road 1737 Comment
  HSC43405  Eriogonum douglasii var. douglasii K. T. Stillman 1976-6-26 107 Siskiyou Marble Mountain Wilderness Area 2073 Comment
  JEPS74481  Eriogonum elatum var. elatum W. J. Ferlatte 1966-8-2 214 Siskiyou wooded area near public camp; Trinity Alps, Big Flat 1524 Comment
  RSA393293  Eriogonum elatum var. elatum M. B. Dunkle 1945-8-2 9275 Siskiyou Paradise Lake, Klamath National Forest, Marble Mountains. Comment
  HSC77153  Eriogonum hirtellum L. P. Janeway 1983-8-7 522 Siskiyou Peak 5148 near end of USFS Rd. 17N32 19 mi. from Indian Creek Rd. 1555 Comment
  HSC54724  Eriogonum lobbii G. L. Clifton, Griswold 1979-7-26 10120 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  HSC59935  Eriogonum lobbii D. L. Goforth 1979-7-19 259 Siskiyou Trinity Alps Wild Area, Caribou Lakes Basin 2104 Comment
  HSC43462  Eriogonum marifolium Jennifer Whipple 1976-6-18 1042 Siskiyou W facing slope of the ridge between Durney Lake and Little Crater 2378 Comment
  HSC43465  Eriogonum marifolium Jennifer Whipple 1977-7-20 1980 Siskiyou S face of Mt. Eddy draining into the N Fork of Sacramento River 2470 Comment
  LA206883  Eriogonum marifolium W. B. C. after Stokes; 1939-8-8 13838 Siskiyou Mount Shasta, around Horse Camp 2438 Comment
  SDSU6757  Eriogonum marifolium D. F. Howe 1962-8-6 3406 Siskiyou Mt Shasta, Shasta National Forest. 2438 Comment
  SEINET530687  Eriogonum marifolium Paul Opler 2008-7-8 Siskiyou Mt. Shaster, Panther Meadows. 2438 Comment
  CAS-BOT-BC263177  Eriogonum marifolium var. cupulatum A. A. Heller 1920-8-12 13522 Siskiyou Between Horse Camp and the spring, Mt. Shasta Comment
  CAS-BOT-BC263186  Eriogonum marifolium var. cupulatum Alice Eastwood 1921-7-25 10802 a Siskiyou Near Pilgrim Creek nursery Comment
  CAS-BOT-BC263195  Eriogonum marifolium var. cupulatum R. H. Bohmannson 1926-7-1 s.n. Siskiyou Mt. Shasta Comment
  CAS-BOT-BC267404  Eriogonum microthecum Elmer I. Applegate 1915-9-20 3322 Siskiyou Captain Jack's Stronghold, Modoc Lava Beds, northeast corner of Siskiyou County Comment
  HSC26228  Eriogonum nudum var. nudum J. P. Smith, J. O. Sawyer 1972-5-28 5366 Siskiyou 2.7 mi. N of Rd. 8 and Sugar Creek on Hwy. 3 915 Comment
  HSC43402  Eriogonum nudum var. nudum K. T. Stillman 1976-7-30 315 Siskiyou Marble Mountain Wilderness Area, ridge top just N of Black Mt. 2104 Comment
  CAS-BOT-BC269746  Eriogonum nudum var. oblongifolium Geo. D. Butler 1908-7-28 212 Siskiyou Near Yreka Comment
  CAS-BOT-BC272474  Eriogonum nudum var. pubiflorum Geo. B. Grant 1902-9-10 3500 Siskiyou Sissons [Sisson] Comment
  CAS-BOT-BC272479  Eriogonum nudum var. pubiflorum L. B. Kildale 1930-6-1 9837 Siskiyou Mill Creek near Etna Mills Comment
  CHSC70473  Eriogonum nudum var. pubiflorum A. Sanger 1996-7-16 2421 Siskiyou Med Lk Highlands, dead end road, 1/2 mi E-Glass Mtn. 1524 Comment
  UCD100723  Eriogonum nudum var. pubiflorum J. M. Tucker 1950-7-25 1953 Siskiyou beside Cold Creek at the Military Road crossing, about 6 miles northwest of Pilgrim Creek Experiment Station, east side of Mt. Shasta. Comment
  RSA50182  Eriogonum nudum var. pubiflorum E. K. Balls 1949-7-8 13925 Siskiyou Etna Public Camp, southern Siskiyou County 851 Comment
  SD22390  Eriogonum nudum var. pubiflorum Susan G. Stokes 1932-7-14 Siskiyou Near Yreka Comment
  UCD100721  Eriogonum nudum var. pubiflorum Robert E. Preston 1995-6-18 886 Siskiyou Irongate Reservoir, 1/4 mile SW of mouth of Jenny Creek, on road cut. 731 Comment
  RSA93409  Eriogonum spergulinum var. reddingianum M. S. Baker, H. K. Wagnon 1953-7-11 12831 Siskiyou 1.9 mi. above Whitlock Camp in open forest. 1372 Comment
  JEPS57225  Eriogonum strictum var. greenei L. R. Heckard 1967-8-13 1713 Siskiyou near summit; Mt. Eddy 2712 Comment
  JEPS57226  Eriogonum strictum var. greenei L. R. Heckard 1967-8-13 1714 Siskiyou near summit; Mt. Eddy 2712 Comment
  UCD101201  Eriogonum strictum var. proliferum Dean William Taylor; G. Ledyard Stebbins 1972-7-4 1623 Siskiyou along Highway 3, about 3 miles east of Etna. 1066 Comment
  HSC61211  Eriogonum ternatum Al Hobart 1968-6-20 Siskiyou El Capitan 1829 Comment
  HSC61799  Eriogonum ternatum Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  JEPS108711  Eriogonum ternatum Thomas W. Nelson and Jane P. Nelson 2006-8-4 9465 Siskiyou Scott Mountain S of junction of Forest service Rd. 40N08 and 44N44 ca 1/2 mi E of junction of State Route 3 and Forest Service Rd. 40N08E side of North-South running ridge. 1670 Comment
  CAS-BOT-BC267940  Eriogonum umbellatum Gilbert Muth 1969-8-6 1184 Siskiyou Boulder Peak Comment
  CAS-BOT-BC267965  Eriogonum umbellatum var. argus A. A. Heller 1914-8-28 11729 Siskiyou East side of Mt. Eddy 1676 Comment
  CAS-BOT-BC267972  Eriogonum umbellatum var. argus James L. Reveal; Darin S. Reveal 1978-8-8 4808 Siskiyou Along the road from Scott Mountain Summit on California Highway 3 on the Gazelle-Callahan Road via Big Carmen Lake (USFS #40N08), 2.5 miles northeast of the Summit and about 1 mile northeast of the Lake, at the end of a ridge about 0.3 mile north of the.. 1737 Comment
  CAS-BOT-BC267977  Eriogonum umbellatum var. argus A. A. Heller 1914-8-28 11742 Siskiyou East side of Mt. Eddy 2194 Comment
  CAS-BOT-BC267986  Eriogonum umbellatum var. argus L. E. Smith 1913-8-1 544 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC267995  Eriogonum umbellatum var. argus Gordon H. True 1966-9-9 3293 Siskiyou 20 miles south east of Obrien on Happy Camp Road 1524 Comment
  CAS-BOT-BC268141  Eriogonum umbellatum var. goodmanii James L. Reveal; Darin S. Reveal 1978-8-9 4811 Siskiyou Along the dirt road from near Happy Camp to Baldy Mountain Lookout (USFS # 17N11), 0.5 mile south of the junction of 17N23, near the head of Doolittle Creek 1280 Comment
  SEINET3860108  Eriogonum umbellatum var. lautum James L. Reveal 2001-7-19 8348 Siskiyou Scott Valley, along South Kidder Creek Road 0.5 mi WSW of California Hwy 3, about 6.1 air mi SW of Fort Jones and 5.7 air mi N of Etna.; 0 869 Comment
  HSC17369  Eriogonum umbellatum var. modocense D. M. Thomson 1965-6-19 87 Siskiyou Lava Beds National Monument, Captain Jacks Stronghold Comment
  UC1539986  Eriogonum umbellatum var. modocense Roseberry 1936-5-15 31 Siskiyou 1/4 mi n Blue Eyes Point; Lava Beds National Monument 1325 Comment
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Jun 18 2011
  CAS-BOT-BC265196  Eriogonum umbellatum var. nevadense Noel H. Holmgren; James L. Reveal 1966-6-9 2675 Siskiyou Shasta River Canyon, US 99, 5 miles north of Yreka, Siskiyou Mountains 853 Comment
  CHSC30840  Eriogonum umbellatum var. nevadense M. S. Taylor; J. Prouty, E. Heinitz 1980-8-18 3261 Siskiyou Little Mt. Hoffman, in pumice. 2225 Comment
  HSC62631  Eriogonum umbellatum var. polyanthum Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  CAS-BOT-BC262371  Eriogonum vimineum Alice Eastwood; John Thomas Howell 1937-6-25 5023 Siskiyou Callahan Comment
  CAS-BOT-BC301104  Eriophyllum lanatum var. achilleoides Geo. D. Butler 1910-5-4 1279 Siskiyou Near Yreka Comment
  UC1035411  Eriophyllum lanatum var. achilleoides David D. Keck 1953-7-31 6535 Siskiyou 3.5 mi s of Grass Lake (Deer Mountain Service Station) Comment
  UC507116  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-21 E 84 Siskiyou 1 mi s of Hornbrook Comment
  CAS-BOT-BC301109  Eriophyllum lanatum var. achilleoides D. H. Johnson; F. G. Palmer 1935-5-16 s.n. Siskiyou Caves eleven miles northeast of Weed 1097 Comment
  CAS-BOT-BC301138  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-7-6 E 119 Siskiyou 10 m. n. Weed, on K. Falls road Comment
  HSC25459  Eriophyllum lanatum var. lanceolatum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5654 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  HSC67902  Eriophyllum lanatum var. lanceolatum J. P. Smith 1973-5-5 6543 Siskiyou Scott Bar along the Scott River Comment
  UC1084738  Eriophyllum lanatum var. lanceolatum Douglas Barbe 1957-7-14 392 Siskiyou s Big Flat Camp (gravel border of river); Salmon River 1524 Comment
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Mar 6 2013
  SDSU4103  Eriophyllum lanatum var. lanceolatum D. F. Howe 1962-8-5 3396 Siskiyou 15.2 miles east of Happy Camp on #96. 549 Comment
  UC166607  Erysimum capitatum Geo. D. Butler 1910-5-4 1273 Siskiyou dry hill near Yreka Comment
  CAS-BOT-BC54587  Erysimum capitatum F. D. Douthitt 1919-5-17 12 Siskiyou Rattlesnake Ridge. 1066 Comment
  CAS-BOT-BC55120  Erysimum perenne H. E. Brown 1897-7-1 415 Siskiyou North side Mount Shasta. 2743 Comment
  HSC91050  Erysimum perenne Jennifer Whipple 1978-10-6 2410 Siskiyou Slopes in the Eddy Creek drainage 2287 Comment
  CHSC31215  Erythranthe breweri M. S. Taylor 1980-7-8 3103 Siskiyou On nw side of Castle Lake. 1615 Comment
  SEINET8390058  Erythranthe linearifolia Christine C. Lorain 1994-8-14 2267 Siskiyou on trail along Deadfall Creek near Lower Deadfall Lake at eastern base of Mt. Eddy; Shasta National Forest. 2134 Comment
  RSA28186  Erythronium citrinum var. citrinum Elmer I. Applegate 1932-4-16 7061 Siskiyou Klamath River opposite the mouth of Doggett Creek Comment
  CAS-BOT-BC505229  Erythronium grandiflorum Gilbert Muth 1966-7-8 350 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC18984  Erythronium grandiflorum subsp. grandiflorum G. L. Clifton 1979-7-1 6175 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  CAS-BOT-BC403678  Eschscholzia californica Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka Comment
  UC165317  Eschscholzia californica Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka Comment
  UC54478  Eschscholzia californica H. M. Hall and E. B. Babcock June, 1903 4082 Siskiyou Shasta Valley Sierra Nevada Mountains, Mount Shasta 1158 Comment
  CAS-BOT-BC403683  Eschscholzia californica Elmer I. Applegate 1935-6-12 9523 Siskiyou South slope of Caldwell Butte, Lava Beds National Monument Comment
  JEPS51783  Eschscholzia californica Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Horseshoe Bend Region of the Upper Sacramento Comment
  SEINET7042815  Eschscholzia californica A. G. Vestal 1955-5-17 s.n. Siskiyou Shasta Valley 2.1 miles north of Yreka. Hawkinsville quadrangle UTM Zone 10, 531952mE, 4623659mN. Comment
  POM125700  Eschscholzia californica var. crocea Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka. Comment
  CAS-BOT-BC310481  Eucephalus tomentellus Alice Eastwood 1912-8-30 1984 Siskiyou Mount Eddy Comment
  HSC65053  Euonymus occidentalis J. P. Smith, Steve Selva 1970-6-16 4089 Siskiyou 7 mi. W of Sawyers Bar on road to Forks of Salmon Comment
  UC163984  Euphorbia crenulata Geo. D. Butler 1910-4-22 1220 Siskiyou Kidder Creek Comment
  SD215493  Euphorbia maculata Louis C. Wheeler 1963-8-23 8266 Siskiyou Klamath River: Walker (near Oak Knoll) Comment
  RSA0036537  Eurhynchiastrum pulchellum James R. Shevock, Ken Kellman 2012-10-6 41162 Siskiyou Above Sugar Lake accessed via trailhead off of FS road 41N14. 1821 Comment
  UC29852  Eurybia integrifolia Milo S. Baker 1893-6 Siskiyou 6 mi below Bartles; McCloud River Comment
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Nov 16 2006
  JEPS24788  Eurybia radulina Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6796 Siskiyou 6.2 mi above and sw of junction with road to, along road to Castle Lake Gumboot Lake; Scott Creek Camp 1432 Comment
  UC166590  Eurybia radulina Geo. D. Butler 1910-7-20 1729 Siskiyou Goosenest foothills 1524 Comment
  UC893627  Eurybia radulina A. A. Heller 1915-8-24 12206 Siskiyou ne base of Mt. Eddy, Metcalf's Ranch Mt. Eddy 1188 Comment
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Sep 7 2006
  CAS-BOT-BC418829  Fallopia japonica var. japonica T. C. Fuller 1963-8-26 11152 Siskiyou Dunsmuir Grade, Hwy 99 to Mt. Shasta City, 0.5 mi. n. of the limits of Dunsmuir Comment
  HSC100206  Festuca californica J. P. Smith, , J. O. Sawyer, & R. J. Cole 2011-5-22 13181 Siskiyou Matthews Campground on the Cecilville to Forks of Salmon Road. 640 Comment
  CAS-BOT-BC283178  Festuca californica subsp. californica Clarence R. Quick 1959-6-19 59 -05 Siskiyou 3 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  UC1483545  Festuca idahoensis J. Sawyer and J. Cole 1980-7-21 3902 Siskiyou near Haight Mtn. (along F.S. road running s to sw); Klamath National Forest, Bray Quad. 1938 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
  CAS-BOT-BC278880  Festuca occidentalis Wm. Bridge Cooke 1939-6-30 13569 Siskiyou Mount Shasta. At MacBride Springs Comment
  HSC22164  Festuca occidentalis J. O. Sawyer 1968-9-28 745 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  HSC73061  Festuca occidentalis Gail Newton 1980-6-20 444 Siskiyou Near Bald Mtn. 1097 Comment
  UCD66145  Festuca occidentalis R. Tofsrud 1949-8-3 Siskiyou Soap Creek Ridge, between Yreka and Fort Jones. Comment
  UC1034046  Festuca pratensis W. Bridge Cooke 1941-7-18 16056 Siskiyou Bear Springs Mount Shasta 1524 Comment
  UC197109  Festuca pratensis Geo. D. Butler 1909-8-16 862 Siskiyou near Yreka (along creek) Comment
  UCD66264  Festuca roemeri R. Tofsrud 1949-8-3 Siskiyou Soap Creek Ridge, between Yreka and Fort Jones. Comment
  SEINET239083 Image available Festuca roemeri var. klamathensis Barbara L. Wilson 1996-6-2 BLM 8123 Siskiyou Klamath National Forest ; Road cut where old highway intersects modern one, on Hwy 3 6.7 miles by road southwest of the Yreka city limits at road marker 003/SIS/40. 1128 Comment
  SEINET11915235  Fragaria californica H. P. Chandler 1901-1 1569 Siskiyou nr Marble Mtn - North Coast Ranges 1829 Comment
  HSC96  Fragaria vesca William J. Ferlatte 1966-6-22 103 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  CAS-BOT-BC457568  Fragaria vesca subsp. californica Roxana S. Ferris; Laura Lorraine 1948-6-12 11741 Siskiyou French Creek Logging Road west of Callahan 1219 Comment
  CAS-BOT-BC457571  Fragaria vesca subsp. californica Clarence R. Quick 1959-6-19 59 - 21 Siskiyou 6.7 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  HSC26240  Frangula californica J. P. Smith, J. O. Sawyer 1972-9-13 5791 Siskiyou 2 mi. W of Cook and Green Pass on the road to Lily Pad Lake Comment
  CAS-BOT-BC53265  Frangula californica subsp. californica Doris K. Kildale 1928-7-25 5916 Siskiyou Klamath River at Somes Bar Comment
  HSC100316  Frangula californica subsp. californica J. P. Smith, J. O. Sawyer 2011-7-21 13027 Siskiyou Along Klamath Forest Service Road 13N18, 0.3 mi. N of Ogaromtoc Lake. 568 Comment
  HSC69738  Frangula californica subsp. californica Maralyn A. Renner 1980-6-26 1279 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  CAS-BOT-BC60020  Frangula purshiana Carl B. Wolf 1927-8-27 1116 Siskiyou On the Klamath River, Happy Camp. Comment
  HSC25481  Frangula rubra J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5723 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC101841  Frangula rubra subsp. obtusissima J. P. Smith, J. O. Sawyer, R. J. Cole 2011-5-22 13179 Siskiyou Matthews Campground on the Cecilville to Forks of Salmon Road. 640 Comment
  SBBG994  Fritillaria atropurpurea H. and M. Dearing 1939-6-28 2185 Siskiyou Wagon Camp, Mt Shasta 1828 Comment
  CHSC9125  Fritillaria pudica J. L. Wilson 1970-3-23 221 Siskiyou 7.6 mi. North of Yreka, on old Interstate 5 road. 1.5 mi. South of intersection of Highway 96 and I. 5. 670 Comment
  POM109768  Fritillaria pudica Geo D. Butler 1910-3-11 1121 Siskiyou Dry hills near Yreka Comment
  UC375203  Fritillaria pudica Geo. D. Butler 1910-5-1 1264 Siskiyou Humbug Mountain Comment
  HSC33973  Fritillaria recurva J. P. Smith 1974-5-25 7435 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  RSA607099  Fritillaria recurva Louis C. Wheeler 1935-4-17 3427 Siskiyou Soap Creek, Siskiyou Mountains 1037 Comment
  SEINET8480257  Fritillaria recurva G. D. Butler 1910-4-17 1191 Siskiyou Near Yreka. Comment
  CHSC32939  Galium bolanderi J. P. Smith; Steve Selva 1970-7-28 4531 Siskiyou South Fork of Sacramento River. 1127 Comment
  CHSC71603  Galium bolanderi Vernon Oswald; Lowell Ahart 1998-8-3 9412 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 3.5 mi southeast of Gazelle-Callahan Rd. 1493 Comment
  JEPS6707  Galium bolanderi Geo. D. Butler 1908-6-28 414 Siskiyou roadside Oro Fino Comment
  JEPS26665  Galium bolanderi Lauramay T. Dempster 1961-7-2 1847 Siskiyou s Steelhead (near Sugar Pine Gulch); Scott River Comment
  HSC19813  Galium glabrescens Lauramay T. Dempster, Clare B. Hardham 1961-7-1 1820 Siskiyou White Mtn., just S of the Oregon border, E slope just below the peak Comment
  HSC25488  Galium glabrescens subsp. glabrescens J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5716 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  JEPS33853  Galium grayanum Gilbert Muth 1966-7-22 437 Siskiyou Marble Rim Marble Mt. Wilderness Area 2194 Comment
  UCD121804  Galium mexicanum subsp. asperulum Daryl Koutnik; Martha Townsend 1979-9-10 s.n. Siskiyou Southwest of Etna, near Etna Bridge. 1066 Comment
  UCR94142  Galium parisiense J. A. Alexander, N. F. McBain, N. A. Alexander 1995-6-30 424 Siskiyou Line Gulch, Klamath River drainage, along Calif. Hwy 96, c. 7 miles west (293 deg. ) of the intersection with I-5, near the S.F. Clyburn family home from 1917-1966 518 Comment
  JEPS101441  Galium serpenticum subsp. scotticum Dean W. Taylor 1997-6-12 16068 Siskiyou hillslopes at base of Scott Mountains at mouth of Willow Creek, Shasta Valley); ca. 4 miles west of Gazelle Comment
  JEPS83840  Galium serpenticum subsp. scotticum Kenneth M. Balk and Miles Dwan 1980-7-18 418 Siskiyou along Hwy 3 between Callahan and Scott Mountain Campground; Klamath National Forest, China Mountain Quadrangle 1371 Comment
  UC618722  Galium trifidum W. Bridge Cooke 1938-7-29 11414 Siskiyou in narrow stream between two meadows Mt. Shasta, Wagon Camp Comment
  CAS-BOT-BC182231  Garrya fremontii Carl B. Wolf 1927-8-26 1045 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  CAS-BOT-BC182276  Garrya fremontii John Thomas Howell 1937-7-23 13346 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  RSA392397  Garrya fremontii Bonnie C. Templeton 1957-6-21 s.n. Siskiyou About ten miles north of Callahan. Comment
  CAS-BOT-BC56289  Gaultheria ovatifolia W. R. Dudley 1899-7-6 s.n. Siskiyou Bartlett trail to Prestons Peak Comment
  HSC68456  Gaultheria ovatifolia Maralyn A. Renner 1980-7-4 1441 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  RSA237865  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1967-8-21 297 Siskiyou In front of northwest face of Tom Taylor Cabin. The Salmon Mountains, the high lake basins in the vicinity of English Peak, Marble Mountains Wilderness Area 2055 Comment
  UC141171  Gentiana calycosa Dr. E. B. Copeland 1903-8-18 3829 Siskiyou Mt. Eddy 2286 Comment
  POM130608  Gentiana calycosa E. B. Copeland 1903-8-18 3829 Siskiyou Mt. Eddy 2287 Comment
  NY297626  Gentiana copelandii A. Eastwood 1912-8-30 2037 Siskiyou Mount Eddy Comment
  HSC29223  Gentiana plurisetosa Frederick W. Oettinger 1968-8-3 373 Siskiyou Marble Mtn. Wilderness Area, 'Base Camp', mid-slope between Diamond and Hancock Lake 2012 Comment
  UC1584287  Gentianella amarella subsp. acuta J. Kierstead, R. Bittman, and M. Myers 1989-8-11 89 -69 Siskiyou Gumboot Creek crossing Shasta-Trinity National Forest, Mt. Shasta Ranger District (s side of FS Rd 26) 1767 Comment
  CAS-BOT-BC459352  Geum aleppicum Donald Myrick 1961-6-20 277 Siskiyou On road to Bear Springs, east of Mt. Shasta City 1371 Comment
  CAS-BOT-BC143590  Geum triflorum John Thomas Howell 1939-8-8 15176 Siskiyou Black Mts., Marble Mts. Comment
  JEPS83037  Geum triflorum L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2301 Siskiyou 0.8 mi s Bray junction (on U.S. Hwy 97, Murphy Wells); Murphy Wells 1493 Comment
  JEPS69515  Gilia capitata subsp. capitata Geo. D. Butler 1909-5-10 741 Siskiyou near Yreka; near Yreka Comment
  JEPS69526  Gilia capitata subsp. capitata W. L. Jepson 1907-7-5 2832 Siskiyou Marble Mt. Marble Mt. (w Siskiyou Co.) 2133 Comment
  CAS-BOT-BC225352  Gilia latiflora subsp. davyi John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53572 Siskiyou Yreka 822 Comment
  JEPS84095  Glyceria elata L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6378 Siskiyou ca 0.5 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  HSC2133  Glycyrrhiza lepidota C. B. Wolf 1927-8-26 1022 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  CAS-BOT-BC302674  Gnaphalium palustre A. A. Heller 1915-8-24 12211 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC302679  Gnaphalium palustre Louis C. Wheeler 1934-6-10 2676 Siskiyou Klamath National Forest. Hungry Cr. 1097 Comment
  UC74051  Gnaphalium palustre T. H. Gilbert June 15 1899 - July 15 1899 Siskiyou Scott River Valley Comment
  UCD132457  Gnaphalium palustre John M. Tucker 1974-7-28 4330 Siskiyou Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  HSC69384  Goodyera oblongifolia Maralyn A. Renner 1980-8-31 2669 Siskiyou Poker Flat at trailhead to Twin Valley 1524 Comment
  JEPS24787  Goodyera oblongifolia Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6795 Siskiyou 6.2 mi above and sw of junction with road to Gumboot Lake (along road to Castle Lake, in drainage of Scott Camp Creek) 1432 Comment
  UC1585405  Goodyera oblongifolia R. Raiche, K. Zadnik and H. Forbes 1989-3-10 Siskiyou at Cook and Green Pass, Siead Valley Road, [UCBG 55] Green Pass; Siead Valley Road, Cook Pass, Green Pass 1425 Comment
  UCD98141  Gypsophila paniculata T. C. Fuller 1963-8-27 11160 Siskiyou n. limits of Macdoel. Comment
  UCD98142  Gypsophila paniculata T. C. Fuller 1967-6-29 16038 Siskiyou west of Medo-Bel Dairy, College Ave., SW part of Weed. Comment
  UCD18306  Hackelia californica Joe Ditomaso 2001-6-12 s.n. Siskiyou Buck Mtn., near McCloud, off Pilgrim Creek Rd. 1828 Comment
  HSC44487  Hastingsia alba K. Irwin 1977-5-22 387 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  HSC44863  Hastingsia alba J. P. Smith, Steve Selva 1970-6-15 3936 Siskiyou Road between Forks of Salmon and Cecilville. 579 Comment
  CAS-BOT-BC504616  Hastingsia alba anonymous no date on the lable. s.n. Siskiyou Siskiyou Comment
  RSA105445  Hastingsia alba Milo S. Baker 1955-7-26 13078 Siskiyou Hwy 99, 4 mi S of Gazelle. 915 Comment
  RSA68941  Hastingsia alba A. E. Culbertson 1943-7-6 17 Siskiyou Castle Lake, 5434, in a north facing cirque with an abrupt 1000 backwall; 14 miles s.w. of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles of its headwaters to the west 1657 Comment
  CAS-BOT-BC302450  Hazardia whitneyi var. discoidea Gilbert Muth 1965-8-4 310 Siskiyou Marble Valley Comment
  HSC26109  Hazardia whitneyi var. discoidea J. P. Smith, J. O. Sawyer 1972-9-12 Siskiyou Scott Mtn., slopes E of Big Carmen Lake 1982 Comment
  HSC92183  Hazardia whitneyi var. discoidea Jennifer Whipple 1977-8-4 2164 Siskiyou Wagon Creek Drainage on the E face of Mt. Eddy 2195 Comment
  CDA6451  Helenium autumnale T. C. Fuller 1958-8-13 1234 -58 Siskiyou 10 miles south of Fort Jones, Scott Valley. 0 Comment
  CAS-BOT-BC306744  Helenium bigelovii K. T. Stillman 1976-7-30 343 Siskiyou Marble Mountain Wilderness Area. Upper Marble Valley 1828 Comment
  CAS-BOT-BC306749  Helenium bigelovii Geo. D. Butler 1910-7-7 1649 Siskiyou Shackleford Creek 1219 Comment
  HSC76711  Helenium bigelovii K. T. Stillman 1976-7-30 343 Siskiyou Marble Mtn. Wilderness Area, Upper Marble Valley. 1829 Comment
  JEPS80579  Helenium bigelovii Gilbert Muth 1965-8-2 145 Siskiyou Marble Valley Marble Mt. Wilderness Area, Marble Valley 1792 Comment
  RSA261538  Helenium bigelovii J. M. Tucker 1974-7-28 4306 Siskiyou Haypress Meadows, Marble Mtn Wilderness Area 1463 Comment
  HSC92209  Helenium bigelovii Jennifer Whipple 1976-7-24 1565 Siskiyou SW of Dobkins Lake along drainage into the lakes 2195 Comment
  SEINET11848993  Helianthella californica H. M. Hall, Babcock, E. B. 1903-1 4056 Siskiyou Mount Shasta, Sierra Nevada Mountains, near Sisson 1067 Comment
  HSC103638  Helianthella californica var. shastensis Thomas W. Nelson, Jane Nelson 1985-6-19 7819 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  CAS-BOT-BC314844  Helianthella californica var. shastensis Harley P. Chandler 1901-6-1 1535 Siskiyou Klamath River 426 Comment
  CAS-BOT-BC305570  Helianthus bolanderi Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Rogers Creek, Somes Bar Comment
  RSA298341  Helianthus bolanderi J. P. Smith 1971-9-18 4837 Siskiyou 2 miles west of the jct. of ca. 3 and rd 8 north Callahan. Juniper-Kellogg oak woodland 1037 Comment
  CAS-BOT-BC313466  Hemizonella minima John Thomas Howell 1937-7-21 13170 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UC1096811  Hemizonella minima Milo S. Baker 1957-6-16 13109 Siskiyou Scott Mts. Comment
  CDA7040  Hemizonia fitchii C. Shelley 1964-9-15 Siskiyou From yard of Ray Pruett, Yreka. 0 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
  UC618740  Heracleum lanatum W. Bridge Cooke 1938-7-15 11186 Siskiyou along middle of Bear Spring creek Bear Springs; Mt.Shasta, Bear Springs Comment
  UCD77758  Heracleum lanatum Robert E. Preston 2002-6-21 1880 Siskiyou Klamath National Forest, Rainbow Mountain, S slope 1819 Comment
  SD40681  Hesperocyparis bakeri Carl B. Wolf, E. R. Johnson 1934-10-8 Siskiyou Modoc lava Beds, 1 mile northeast of Timbered Crater on Old Stage Road from Dana to Little Hot Springs Valley 1220 Comment
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Mar 29 2012
  SD136999  Hesperocyparis bakeri C. B. Wolf, E. R. Johnson 1934-10-9 6169 Siskiyou Siskiyou Mountains, above west fork of Seiad Creek, 3/4 mile above forks of creek, south slope in red rock. 1160 Comment
  UC1540189  Hesperolinon micranthum Dean Wm. Taylor and Glenn L. Clifton 1987-6-24 9051 Siskiyou Tom Young Flat McCloud River drainage 1280 Comment
  UC642530  Hesperolinon micranthum W. B. Cooke 1939-7-14 13686 Siskiyou Sisson Southern Trail Mount Shasta 1371 Comment
  HSC30649  Heterocodon rariflorum Frederick W. Oettinger 1969-8-18 1427 Siskiyou Marble Mtn. Wilderness Area, due N of Horse Range Lake outlet 1860 Comment
  JEPS81786  Heterotheca oregona var. oregona Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6893 Siskiyou Poker Flat Siskiyou Mountains 1536 Comment
  UCD133097  Heterotheca villosa Jack Major; M. Fleschner, R. Pemble 1966-9-3 s.n. Siskiyou east of Marble Mountain, Marble Mountains. 1584 Comment
  HSC76961  Heterotheca villosa var. minor K. T. Stillman 1976-9-9 467 Siskiyou Marble Mtn. Wilderness Area; Marble Valley Guard Station 1738 Comment
  HSC4793  Heuchera merriamii William J. Ferlatte 1966-8-19 454 Siskiyou Head Of Kidd Creek 2134 Comment
  JEPS50862  Heuchera merriamii Al Hobart 1967-8-8 Siskiyou just s Youngs Valley (on El Capitan, Siskiyou Mountains, westernmost Siskiyou County); Siskiyou Mountains, El Capitan, just s of Youngs Valley 1828 Comment
  UC1190182  Heuchera merriamii Ira L. Wiggins 1955-7-27 13561 Siskiyou Caribou Lake; Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA0063194  Heuchera merriamii William J. Ferlatte 1967-8-20 1061 Siskiyou Caribou Basin. Sawtooth Ridge. Trinity Alps. 2043 Comment
  HSC68539  Heuchera micrantha Maralyn A. Renner 1980-6-25 1108 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  RSA782326  Heuchera micrantha R. W. Spjut, Paul Burchstead 2008-6-12 16341 Siskiyou Klamath Region. Klamath National Forest: vicinity of Sawyers Bar along the North Fork of the Salmon River. Along south side of river just across the bridge south of paved road. 658 Comment
  NY186042  Heuchera pringlei C. G. Pringle 1881-8-14 s.n. Siskiyou Castle Lake 1828.8 Comment
  CAS-BOT-BC424373  Heuchera rubescens A. A. Heller 1914-8-28 s.n. Siskiyou Mt. Eddy 2346 Comment
  UC1408927  Hieracium albiflorum Frederick W. Oettinger 1969-9-4 1641 Siskiyou Hancock Lake, NW side Salmon Mountains, Marble Mountains Wilderness Area (vicinity of English Peak) 1950 Comment
  CAS-BOT-BC319686  Hieracium albiflorum L. E. Smith 1913-7-1 449 Siskiyou Dunsmuir Comment
  POM360468  Hieracium albiflorum Chadwick, Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  RSA183733  Hieracium gracile Gilbert Muth 1965-8-11 s.n. Siskiyou Marble Valley. Marble Mtns. Comment
  UC1408928  Hieracium greenei Frederick W. Oettinger 1969-9-5 1685 Siskiyou next basin e of Salamander Lake Basin; Abbot's Lake 1798 Comment
  UC337088  Hieracium horridum unknown 1888-9-12 Siskiyou side Mt. Shasta Comment
  JEPS36666  Hieracium nudicaule W. L. Jepson 1940-7-1 20086 Siskiyou 6 mi e McCloud (Fowlers Camp); McCloud River 975 Comment
  UC1096804  Hieracium nudicaule Barbe 1957-7-13 382 Siskiyou Big Flat Public Camp, along the path to the spring, W side of camp Klamath National Foreset 1524 Comment
  UC481033  Hieracium nudicaule H. W. Furlong Sep 1901 Siskiyou Summit to Ager Comment
  POM360467  Hieracium scouleri var. nudicaule L. S. Rose 1937-7-25 37590 Siskiyou South slope of Mt. Shasta. 1768 Comment
  CAS-BOT-BC280780  Holcus lanatus L. E. Smith 1913-6-1 325 Siskiyou Sisson Comment
  HSC40468  Holodiscus discolor J. O. Sawyer 1973-7-18 2554 Siskiyou 1524 Comment
  HSC44722  Holodiscus discolor J. O. Sawyer, E. Cope 1977-6-18 2907 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  HSC58952  Holodiscus discolor Marvin Butler 1971-7-29 240 Siskiyou Near Copper Camp, close to the town of Cave Junction 1464 Comment
  HSC65497  Holodiscus discolor Rich White 1977-7-21 118 Siskiyou Slope below outlet of Raspberry Lake 1512 Comment
  RSA183703  Holodiscus discolor Gilbert Muth 1965-8-3 148 Siskiyou Down Creek from Marble Valley, Marble Mountains. Comment
  UC165262  Holodiscus discolor Geo. D. Butler 1910-7-6 1645 Siskiyou Shackleford Creek 2 mi s of Scott River (near Mugginsville, flowing e into Evans Creek, sw Siskiyou County); Shackleford Creek 914 Comment
  UC922310  Holodiscus discolor Annie M. Alexander and Louise Kellogg 1949-7-31 5906 Siskiyou Marble Mountains, trail at entrance to Sky High Valley Sky High Valley; Marble Mountains, Sky High Valley 1767 Comment
  POM91535  Holodiscus discolor Geo. D. Butler 1910-7-6 1645 Siskiyou Shackleford Creek. 915 Comment
  CAS-BOT-BC152380  Holodiscus discolor var. discolor Doris K. Kildale 1929-7-20 8575 Siskiyou South east spur Preston Peak 1950 Comment
  CDA16144  Holosteum umbellatum G. F. Hrusa 1999-4-2 14934 Siskiyou Cascade Range; Louise Rd exit off I-5 on Louise Rd east turnout. 822 Comment
  UCD98181  Holosteum umbellatum subsp. umbellatum J. T. Howell; T. C. Fuller, G. D. Barbe 1980-4-28 2577 Siskiyou Grenada. 800 Comment
  RSA602817  Hordeum brachyantherum L. C. Wheeler 1934-6-26 2794 Siskiyou Cottonwoods Creek; Border of sunny creek; Siskiyou Mts., Mt. Diablo Mer. 838 Comment
  CHSC91336  Hordeum jubatum Lowell Ahart; John Dittes 2005-6-9 12023 Siskiyou Field, on the east side of a poor rock fence, about 400 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
  JEPS104786  Horkelia daucifolia Dean W. Taylor 1996-5-29 15638 Siskiyou Highway 3 about 4 miles east of southern edge Yreka; Soap Creek Ridge 822 Comment
  UC585215  Horkelia daucifolia E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1942 Siskiyou ca 8 mi s Yreka 822 Comment
  CAS-BOT-BC143964  Horkelia daucifolia David D. Keck; A. Gustafsson 1938-8-8 4860 Siskiyou On hillside 0.4 mi. S. of Scott Mt. Lodge, near Mill Creek, Scott Mts. 1040 Comment
  CHSC30905  Horkelia fusca subsp. parviflora M. S. Taylor; J. Prouty, E. Heinitz 1980-8-18 3258 Siskiyou Yellow Pine plantation, ca. 50 ft e of Hwy 15, ca. 3 mi n of its jct with Hwy 89, ca. 17 mi e of McCloud. Comment
  UC165743  Horkelia fusca subsp. parviflora Geo. D. Butler 1910-9-11 1868 Siskiyou Weed Comment
  HSC28087  Horkelia fusca var. brownii J. D. Ackerman, A. M. Montalvo 1973-7-20 105 Siskiyou 3.7 mi. W of McCloud along Hwy. 89 Comment
  CAS-BOT-BC514284  Horkelia fusca var. pseudocapitata A. A. Heller 1916-6-23 12429 Siskiyou Near Black Butte N of Sisson 1127 Comment
  CAS-BOT-BC514289  Horkelia fusca var. pseudocapitata A. A. Heller 1927-8-1 14435 Siskiyou Near Shasts City (Sisson) [type (of H. brownii) collected on the south side of Mt. Shasta] Comment
  SEINET11911601  Horkelia hendersonii Unknown 1986-1 60435 Siskiyou Road to alex Hole(Condrey Mt.),Dry Lake. Open gravelly SW-facing slope,near upper edge vernal "lake" 2057 Comment
  CAS-BOT-BC538242  Horkelia tridentata var. flavescens J. H. Thomas 1954-5-12 4123 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville 975 Comment
  CAS-BOT-BC201128  Hosackia crassifolia Geo. D. Butler 1910-6-6 1452 Siskiyou Quartz Valley Comment
  HSC42916  Hosackia oblongifolia var. oblongifolia J. O. Sawyer, Ken Stillman 1976-7-1 2784 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  HSC69189  Hosackia oblongifolia var. oblongifolia Maralyn A. Renner 1980-8-31 2629 Siskiyou Twin Valley. 1494 Comment
  HSC81562  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1980-7-19 6207 Siskiyou Along USFS Rd. 40N17 1.0 mi. from junction with Callahan-Cecilville Rd. 1585 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
  LA203776  Hulsea nana Wm. Bridge Cooke; 1939-7-26 13769 Siskiyou Mt. Shasta, Along the Summit Trail below Lake Helen 2895 Comment
  UC195204  Hulsea nana Annie M. Alexander and Louise Kellogg 1911-8-14 316 Siskiyou Mt. Eddy Comment
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1
  SBBG30499  Hydrophyllum fendleri D. Myrick 1968-6-26 2027 Siskiyou upper end of Coffee Crk; Trinity Alps 1463 Comment
  JEPS1649  Hydrophyllum occidentale Geo. D. Butler 1909-4-25 691 Siskiyou Quartz Valley; w Siskiyou County 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
  SBBG25919  Hypericum anagalloides D. Myrick 1966-8-11 1536 Siskiyou Adams Lake, Mountain Meadow Ranch, Big Flat, Trinity Alps 1828 Comment
  SEINET5343937  Hypericum anagalloides G. Butler 1910-7-12 1765 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC401284  Hypericum perforatum Carl B. Wolf 1927-8-26 1094 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  RSA31633  Idahoa scapigera A. A. Heller 1929-5-4 14864 Siskiyou Near Edgewood. Comment
  UC643276  Iliamna bakeri W. Bridge Cooke 1940-6-28 15193 Siskiyou in chaparral along Memorial Highway; Mount Shasta Comment
  HSC30078  Ipomopsis aggregata D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-23 19534 Siskiyou Snowman's Hill Summit 3 mi. W of McCloud on Hwy. 89 Comment
  HSC81565  Ipomopsis aggregata subsp. aggregata Thomas W. Nelson, Jane P. Nelson 1980-7-17 6093 Siskiyou Along FS Rd. 17, 0.5 mi. N of summit at county line 2073 Comment
  POM147884  Ipomopsis aggregata subsp. formosissima J. B. Feudge 1927-7-24 1747 Siskiyou trail from Mt. Shasta City to Mt. Eddy 1677 Comment
  RSA183664  Ipomopsis congesta Gilbert Muth 1965-7-29 312 Siskiyou Ridge near Marble Mountains Lookout Comment
  CDA39606  Iris chrysophylla D. H. Shaw 1977-5-16 s.n. Siskiyou Scott River Road, south of Scott Bar. 0 Comment
  SEINET12049833  Iris chrysophylla F. H. Utech 1986-1 86 -476 Siskiyou Klamath National Forest, West Branch Recreation Area, ca 12 mi NE of Happy Camp 1000 Comment
  SEINET10469761  Iris tenuissima Mary Merello 1993-6-22 Merello 694 Siskiyou Shasta National Forest outside of Mt. Shasta City. Along Forest Service Road 26 to Lake Siskiyou. Mixed conifer forest along rocky, gravely slopes of the Sacramento River. 1090 Comment
  RSA136346  Iris tenuissima Lee W. Lenz 1953-5-17 18313 Siskiyou Salmon River, 1 1/4 mi. above junction with Klamath River 177 Comment
  HSC6799  Isatis tinctoria Dorothy Parker 1949-6-30 Siskiyou Patterson Creek, Scott Valley 854 Comment
  CAS-BOT-BC57680  Isoetes bolanderi L. P. Janeway 1993-8-31 4574 Siskiyou Seven Lakes Basin quad, above and south of Terrace Lake; headwaters of South Fork Sacramento River 1941 Comment
  RSA637583  Isoetes occidentalis I. Shackleford 1997-7-24 259 Siskiyou Klamath National Forest. Horseshoe Lake. Comment
  UC165296  Isopyrum stipitatum Geo. D. Butler 1909-2-28 584 Siskiyou near Yreka; near Yreka Comment
  OBI4716  Iva axillaris T. C. Fuller 1960-7-26 4879 Siskiyou Sam's Neck, ca 10 mi SW of Dorris Comment
  CAS-BOT-BC110016  Juncus W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow. Comment
  JEPS66905  Juncus balticus Geo. D. Butler 1910-5-1 1254 Siskiyou near Yreka Comment
  CHSC40147  Juncus effusus subsp. pacificus L. P. Janeway 1983-7-2 363 Siskiyou On se side of Klamath R ca 6 mi e on China Cr Rd from Happy Camp. Ca 1/2 m from water's edge. 335 Comment
  JEPS66977  Juncus ensifolius Geo. D. Butler 1910-7-9 1734 Siskiyou Shackleford Creek 1219 Comment
  POM111089  Juncus ensifolius Geo D. Butler 1910-6-21 1596 Siskiyou Yreka Creek. Comment
  RSA238916  Juncus ensifolius Frederick W. Oettinger 1968-9-7 749 Siskiyou On north side of Hancock Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  SEINET6188314  Juncus ensifolius var. montanus M. J. Williams 1967-9-2 s.n. Siskiyou Cabin Meadow Comment
  RSA238915  Juncus hemiendytus var. hemiendytus Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1266 Siskiyou English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CHSC40148  Juncus hesperius L. P. Janeway 1983-6-25 328 Siskiyou Seep area along edge of dirt road ca 350 m n of West Branch Guard Sta. 670 Comment
  CAS-BOT-BC110801  Juncus mertensianus John Thomas Howell 1939-8-8 15154 Siskiyou Black Mountain. Marble Mountains. Comment
  HSC96555  Juncus mertensianus Gordon Leppig, J. Kalt 1996-7-10 380 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  CAS-BOT-BC127622  Juncus mertensianus Jennifer Whipple 1976-7-8 1335 Siskiyou North slopes of Mount Eddy. Klamath Mountains. 2438 Comment
  POM170542  Juncus mertensianus M. S. Baker 1899-8-1 s.n. Siskiyou East base of Mt. Shasta. Comment
  RSA597972  Juncus mertensianus L. C. Wheeler 1963-8-31 8317 Siskiyou Siskiyou Mountains. Devil's Punch Bowl off Clear Creek. 1432 Comment
  CHSC38989  Juncus nevadensis J. D. Jokerst 1983-7-5 1825 Siskiyou Atkins meadow along east margin. Ca 15 air miles east of McCloud. 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
  UC167844  Juncus orthophyllus C. B. Bradley 1879-1 Siskiyou Comment
  HSC22104  Juncus parryi J. O. Sawyer 1969-7-10 1301 Siskiyou SE facing slope above South Sugar Lake 2165 Comment
  UCD141750  Juncus parryi Dean Wm. Taylor 1975-8-14 5464 Siskiyou Mt. Shasta, between Shasta Ski area and Green Butte. 2590 Comment
  UCD141754  Juncus parryi William Bridge Cooke 1937-8-7 9252 Siskiyou Vicinity of The Gate (south) Hudsonian. 2590 Comment
  RSA697391  Juniperus communis W. Lane 1938-07 s.n. Siskiyou Siskiyou Mountains 1220 Comment
  HSC22407  Juniperus communis var. saxatilis J. O. Sawyer 1969-6-12 880 Siskiyou Ridge SE of Eaton Lake 2226 Comment
  CAS-BOT-BC81244  Juniperus occidentalis C. Etienne 1969-12-27 s.n. Siskiyou 15 mi. N of Weed, Highway 97 1767 Comment
  UC401377  Juniperus occidentalis Geo. D. Butler 1908-9-6 226 Siskiyou dry land near Yreka Comment
  NY20170  Juniperus occidentalis Miss Herzinger 11 1903 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
  NY20176  Juniperus occidentalis A. A. Heller 1938-7-12 15262 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
  POM21709  Juniperus occidentalis var. occidentalis E. B. Copeland 1903-7-4 3545 Siskiyou Klamathon Comment
  SEINET3108511  Kalmia polifolia Steve Selva, Robert Jensen 1974-8-25 48 Siskiyou Meadow at west end of Little Duck Lake. Comment
  HSC61178  Keckiella corymbosa Ruby Van Deventer 1960-7-14 Siskiyou Dillon Creek Comment
  JEPS82429  Kelloggia galioides Gilbert Muth 1966-7-31 471 Siskiyou n side Black Mt.; Marble Mountain Wilderness Area 1981 Comment
  LA208509  Kelloggia galioides Carl B. Wolf; 1934-7-6 Siskiyou Mount Shasta, SW slope of Mt. Shasta. 4 mi from Mt. Shasta City on Wagon Camp Road 1219 Comment
  SBBG30547  Kelloggia galioides D. Myrick 1968-6-25 2023 B Siskiyou Mountain Meadow Ranch, Big Flat; Coffee Crk 1524 Comment
  RSA17727  Koeleria macrantha Elmer I. Applegate 1935-6-8 9435 Siskiyou Bear Paw Cave, Lava Beds National Monument. Comment
  UCD123810  Kopsiopsis strobilacea J. M. Tucker; D. V. Hemphill 1974-7-27 4302 Siskiyou beside trail from Haypress Meadows to Monument Lake, on Sandy Ridge ca. 4 miles from Haypress Meadows; Marble Mountain Wilderness Area. 1859 Comment
  JEPS40203  Kyhosia bolanderi Geo. D. Butler 1908-8-4 299 Siskiyou head Shackelford Creek 1676 Comment
  CAS-BOT-BC340402  Lactuca Alice Eastwood 1912-8-28 1943 Siskiyou Sisson Comment
  OBI55444  Lactuca biennis David J. Keil 1992-7-20 23502 Siskiyou Klamath NF. Along Forest Rd 46N64, 2.8 mi W of Scott river rd Comment
  JEPS82115  Lactuca canadensis Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-19 7444 Siskiyou about 8 mi e Happy Camp; Canyon of the Klamath River Comment
  CAS-BOT-BC340613  Lactuca serriola Lewis S. Rose 1925-7-29 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC341705  Lagophylla ramosissima Margaret M. Hanna 1958-6-22 s.n. Siskiyou 18 miles east of Redding Comment
  UC1185277  Lathyrus brownii H. E. Brown 1897-6-10 Siskiyou near Sisson 1083 Comment
  CAS-BOT-BC204988  Lathyrus jepsonii var. californicus Geo. D. Butler 1910-7-6 1644 Siskiyou Shackleford Creek 914 Comment
  UC1951315  Ledum glandulosum Robert F. Thorne and Fred Oettinger 1969-8-4 63376 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. At margin of Diamond Lake. Comment
  JEPS107391  Lemna minuta Lowell Ahart, John Dittes 2005-6-10 12110 Siskiyou At intake pipe, at pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  CAS-BOT-BC88864  Lepidium campestre Alice Eastwood 1923-5-18 11835 Siskiyou Shasta Springs. 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
  NY76304  Lepidium montanum subsp. canescens L. C. Wheeler 1935-6-30 3639 Siskiyou 3 miles south of Grenada, Shasta Valley 792.5 Comment
  UC10685  Lesquerella occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1653 Siskiyou Marble Mountain; North Coast Ranges, Marble Mountain 2438 Comment
  CHSC96022  Leucothoe davisiae L. P. Janeway 2006-7-4 8787 Siskiyou Klamath Ranges. Scott Mountains; Darlingtonia fen and creeklet complex above Road 40N13 1.6 air km west of Scott Mountain Summit. 1728 Comment
  HSC69720  Leucothoe davisiae Maralyn A. Renner 1980-7-16 1794 Siskiyou Hancock Lake inlet 1951 Comment
  UC1951316  Leucothoe davisiae Robert F. Thorne and Fred Oettinger 1969-8-4 63378 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. At margin of Diamond Lake. Comment
  SEINET2030161 Image available Leucothoe davisiae Lester Rowntree 1937-7-26 s.n. Siskiyou Caribou Lakes Comment
  RSA237458  Lewisia cotyledon Frederick W. Oettinger 1967-7-20 173 Siskiyou SSE of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC444056  Lewisia cotyledon var. cotyledon Doris K. Kildale 1929-7-20 8581 Siskiyou East spur of Preston Peak above Rockefeller Lake 2133 Comment
  UC1312937  Lewisia cotyledon var. cotyledon John M. Tucker 1963-7-7 3713 Siskiyou vicinity of Paradise Lake (base on e side of Kings Castle); Marble Mountain Wilderness Area, Kings Castle 1981 Comment
  UC630395  Lewisia cotyledon var. cotyledon Annetta Carter 1939-8-21 1466 Siskiyou 12 mi sw Etna (above se end of Taylor Lake); Salmon Mountains 2164 Comment
  JEPS25554  Lewisia cotyledon var. howellii Maxine Gibeson 1961-5-13 Siskiyou on large cliff...across Klamath River from Calif. Highway no. 96 (1 mi e of Walker Bridge, almost directly across from Oak Knoll Ranger Sta., 9 1/2 mi w of commun. of Klamath River) 524 Comment
  UC1190112  Lewisia leeana Ira L. Wiggins 1955-7-29 13569 Siskiyou Caribou Lake, pass at sw end Salmon-Trinity Alps Primitive Area 2072 Comment
  SEINET10572649  Lewisia leeana Mary Susan Taylor 1980-7-8 Taylor 3093 Siskiyou T39N R5W south center sec 19, Dunsmuir quad; Shasta-Trinity Natl Forest; S end of Little Castle Lake, in steep granitic cliffs. 1768 Comment
  UC796570  Lewisia rediviva Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11715 Siskiyou Schoolhouse Hill Plowman's Valley (Noyes Valley), e. fork of Scott River Comment
  CDA32461  Leymus cinereus T. C. Fuller 1958-6-19 1808 Siskiyou Fence row adjacent to open pasture, 3 miles northeast of Montague 0 Comment
  CAS-BOT-BC272172  Leymus triticoides Louis C. Wheeler 1934-9-22 3293 Siskiyou Walker, Klamath Forest 518 Comment
  POM215709  Leymus triticoides L. C. Wheeler 1934-9-22 3293 Siskiyou Walker, Klamath River; Siskiyou Mts. 518 Comment
  HSC22241  Ligusticum californicum J. O. Sawyer 1969-8-4 1818 Siskiyou Above Sugar Lake 2134 Comment
  RSA453851  Ligusticum californicum M. B. Dunkle 1945-07 9256 Siskiyou Klamath National Forest; Marble Mts. Comment
  HSC44999  Lilium kelleyanum J. P. Smith, Steve Selva 1970-7-17 4448 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC60155  Lilium kelleyanum D. L. Goforth 1979-7-7 226 Siskiyou Klamath National Forest, Condrey Mtn. Comment
  UC54199  Lilium kelleyanum H. M. Hall and E. B. Babcock Jun 1903 4047 a Siskiyou near Sisson (18th crossing of the Sacramento River); Sierra Nevada Mountains, Mount Shasta 1036 Comment
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Dec 13 2006
  CAS-BOT-BC130818  Lilium pardalinum Ira L. Wiggins 1955-7-21 13425 Siskiyou Along ditch bank near Mt. View ranch 7 mi. above Cecilville on S Fork Salmon River 975 Comment
  SEINET8480721  Lilium pardalinum W. Roderick 1967-7-28 s.n. Siskiyou Center of town of Mt. Shasta, between the old highway and the railroad. Comment
  UC618680  Lilium washingtonianum unknown 1938-7-22 11328 Siskiyou Sisson Southern Trail; Mount Shasta Comment
  CAS-BOT-BC123093  Lilium wigginsii Lawrence Beane; Albert Michael Vollmer 1954-7-16 1266 Siskiyou Siskiyou Mountains near Oregon border west of Hwy 99 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
  JEPS82489  Linum lewisii Gilbert Muth 1965-8-6 186 Siskiyou Marble Mountain Wilderness Area, backside trail of Black Mt. Black Mt.; Marble Mountain Wilderness Area, Black Mt. 1981 Comment
  RSA187335  Linum lewisii H. A. Thomas, John H. Thomas 1954-7-25 4538 Siskiyou Salmon Trinity Mts, Vicinity of Rush Lake and Rush Creek Meadow, 9 miles E of Cecilville. 1829 Comment
  UC163691  Linum lewisii Geo. D. Butler 1908-8-6 9 Siskiyou Summit between Marble Mountain and Wooley Creek Comment
  CAS-BOT-BC36542  Lithocarpus densiflorus var. echinoides L. E. Smith 1913-6-29 s.n. Siskiyou Rainbow Comment
  CAS-BOT-BC36575  Lithocarpus densiflorus var. echinoides Wm. Bridge Cooke 1941-9-16 16321 Siskiyou along trail to Castle Lake Road 1219 Comment
  HSC22242  Lolium perenne J. O. Sawyer 1969-8-1 1617 Siskiyou On trail to Eaton Lakes. 1799 Comment
  UC165419  Lomatium dissectum var. multifidum Geo. D. Butler 1910-5-7 1303 Siskiyou hill near Yreka Comment
  RSA184693  Lomatium dissectum var. multifidum Gilbert Muth 1966-7-25 447 Siskiyou Marble Mountain Lookout, Marble Mountains 2098 Comment
  JEPS120250  Lomatium engelmannii Julie Kierstead Nelson with Rhonda Posey, Peter Zika, Talitha Derksen 2012-6-21 2012 -059 Siskiyou South Fork Willow Creek, foothills of N side Scott Mountain. Rd. 42N19; ca. 2 miles S of Gazelle-Callahan Hwy. Comment
  HSC39322  Lomatium macrocarpum J. P. Smith 1974-5-26 7387 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC1037451  Lomatium macrocarpum Milo S. Baker 1955-6-25 13070 Siskiyou Hwy. 99 2 mi. s. Gazelle 914 Comment
  UC165426  Lomatium macrocarpum Geo. D. Butler 1909-5-9 744 Siskiyou hills near Yreka Comment
  POM82362  Lomatium macrocarpum Geo. D. Butler 1910-6-5 1528 Siskiyou Shackleford Creek Comment
  SD98968  Lomatium marginatum Darley F. Howe 1977-7-5 4995 Siskiyou 15 miles southeast of Granada 1220 Comment
  RSA47656  Lomatium nevadense Roxana S. Ferris, Laura Lorraine 1948-6-16 11842 Siskiyou Gazelle Mountain grade, road between Callahan and Gazelle 1500 Comment
  RSA78822  Lomatium nudicaule P. A. Munz 1952-7-2 17900 Siskiyou Baldy Mountain about 6 air miles west of Happy Camp, Siskiyou Mountains 1738 Comment
  POM82361  Lomatium piperi Geo. D. Butler 1910-2-25 1130 Siskiyou Yreka Comment
  SEINET13761959  Lomatium utriculatum R. R. Halse 2016-5-29 9724 Siskiyou Along Hilt Road, E of Hilt. 902 Comment
  JEPS12870  Lonicera ciliosa Dorothy Boedecker 1937-6-10 Siskiyou Etna Comment
  SEINET3154549  Lonicera ciliosa G. D. Butler 1909-5-23 1395 Siskiyou Humbug mountain 1219 Comment
  JEPS24026  Lonicera conjugialis Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6888 Siskiyou Poker Flat Siskiyou Mountains 1536 Comment
  LA205969  Lonicera conjugialis W. B. C.; 1939-7-7 sn Siskiyou Mount Shasta, between Wagon Camp and Bear Springs 1615 Comment
  UC1408787  Lonicera conjugialis Frederick W. Oettinger 1968-9-2 658 Siskiyou sw Upper English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1783 Comment
  UC28530  Lonicera interrupta Miss Edmonds July 1890 Siskiyou Comment
  SEINET8056679  Lonicera involucrata G. D. Butler 1910-7-9 1700 Siskiyou Margin of Shackleford creek. 1219 Comment
  JEPS27163  Lotus crassifolius var. crassifolius Lauramay T. Dempster 1961-7-1 1834 Siskiyou near White Mountain Comment
  JEPS55546  Lotus nevadensis var. nevadensis Geo. D. Butler 1908-6-28 392 Siskiyou Yreka Comment
  JEPS75370  Lotus nevadensis var. nevadensis Geo. D. Butler 1908-6-28 392 Siskiyou L. Eastlick's Ranch Oro Fino Comment
  UC60884  Lotus purshianus var. purshianus W. A. Setchell, C. C. Dobie 1902-7-21 Siskiyou Sisson Mount Shasta Comment
  RSA273325  Lotus unifoliolatus J. P. Smith, J. O. Sawyer 1972-9-14 5805 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  RSA237597  Luetkea pectinata Frederick W. Oettinger 1968-8-2 356 Siskiyou South end of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC201285  Lupinus Charles Piper Smith 1947-5-13 47274 A Siskiyou 7.4 miles east of Weed. Highway 97 Comment
  OBI55450  Lupinus David J. Keil 1992-7-20 23508 Siskiyou Klamath Natl Forest, SW of Fort Jones. Along Forest Rd 46N64, 7.4 mi W of Scott river Rd 800 Comment
  JEPS85698  Lupinus albicaulis Geo. D. Butler 1908-7-20 371 Siskiyou Humbug Creek Comment
  JEPS85697  Lupinus albicaulis Geo. D. Butler 1909-6-23 913 Siskiyou Goose Nest Comment
  SD126363  Lupinus albicaulis subsp. shastensis P. Kenney, Conrad and LeDoux 1973-6-4 386 Siskiyou West side of Mt. Shasta, just before Pony Trail Road. 1067 Comment
  JEPS64892  Lupinus albicaulis var. shastensis Willis L. Jepson August 1894 8 t Siskiyou near Sisson; Mt. Shasta, Upton, near Sisson Comment
  SEINET5766877 Image available Lupinus albicaulis var. shastensis A. A. Heller 1915-1 12117 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1189 Comment
  CDA27353  Lupinus albicaulis var. shastensis C. S. Giebner 1963-7-31 Siskiyou Kerr property, Flying K Ranch, Quartz Valley, ca. 2 miles south of Mugginsville. 0 Comment
  CAS-BOT-BC195968  Lupinus albifrons var. albifrons Charles Piper Smith 1947-5-6 47203 Siskiyou Gazelle, 3.2 miles south, Highway 99 Comment
  CAS-BOT-BC195971  Lupinus albifrons var. albifrons Charles Piper Smith 1949-4-22 49130 Siskiyou Highway 99 - Hornbrook - West Cottonwood Creek Bridge Comment
  HSC39325  Lupinus albifrons var. collinus J. P. Smith 1974-5-26 7390 Siskiyou Along FS Rd. 47N03 1524 Comment
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Feb 26 2013
  UC796507  Lupinus albifrons var. collinus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11725 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road 1066 Comment
  UC82285  Lupinus albifrons var. collinus Dr. E. B. Copeland 1903-7-3 3527 Siskiyou Klamathon Comment
  POM11084  Lupinus albifrons var. eminens Geo. D. Butler 1910-5-2 1268 Siskiyou Around Yreka. Comment
  CAS-BOT-BC196322  Lupinus albifrons var. flumineus D. B. Dunn; B. J. Cox 1971-6-9 17937 Siskiyou 9 mi. N. of Weed, on U.S. Hwy 97, at Whitney Creek 1249 Comment
  SEINET10484554  Lupinus albifrons var. flumineus Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6975 Siskiyou Western yellow pine, libocedrus, douglas fir forest, 6 miles sw of callahan 1524 Comment
  CAS-BOT-BC196327  Lupinus albifrons var. flumineus Charles Piper Smith 1949-4-22 49133 Siskiyou Highway 99 - Chafron Auto Camp, Klamath River Canyon Comment
  CHSC26188  Lupinus andersonii J. P. Kroessig 1977-8-6 52 Siskiyou Jct of Everitt Memorial Hwy and McBride Springs Campground access road, w base of Mt Shasta, ca. 4.5 km n of Mt Shasta City. 1460 Comment
  HSC22259  Lupinus andersonii J. O. Sawyer 1969-7-18 1429 Siskiyou SW facing slope above Deacon Lee Trail 2195 Comment
  HSC70489  Lupinus andersonii J. P. Smith 1973-5-5 6515 Siskiyou Along Cook and Green Pass Rd. Comment
  SEINET10903806  Lupinus arbustus subsp. silvicola David B. Dunn, Billy Joe Cox 1971-6-10 Dunn 17952 Siskiyou 5 miles n of weed, on us hwy 97; in artemisia, prushia, pinus ponderosa, in Volcanic soil Comment
  CAS-BOT-BC196353  Lupinus argenteus var. argenteus L. E. Smith 1914-5-14 695 Siskiyou Montague Comment
  UC1409231  Lupinus breweri Frederick W. Oettinger 1968-8-4 397 Siskiyou rocky ridge e English Peak Lookout (High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 2209 Comment
  UC147327  Lupinus breweri Harley P. Chandler June, 1901 1590 Siskiyou near Marble Mountain; North Coast Ranges, near Marble Mountain 1981 Comment
  RSA237888  Lupinus breweri var. breweri Frederick W. Oettinger 1967-7-25 183 Siskiyou Ridge SSE of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2223 Comment
  CAS-BOT-BC215101  Lupinus croceus John Thomas Howell 1937-7-1 13314 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC215180  Lupinus croceus W. W. Eggleston 1915-8-12 11601 Siskiyou S Fork of Shasta River, Mount Eddy, Shasta Forest 2000 Comment
  SEINET11159979  Lupinus klamathensis Morris, K. , Conrad; Dunn, D., Dunn, D. 1973-6-2 357 Siskiyou Siskiyou County Comment
  UC1409330  Lupinus latifolius var. viridifolius Frederick W. Oettinger 1968-9-7 768 Siskiyou Upper meadow near Tobacco Lake (High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  UCD108249  Lupinus lepidus var. confertus A. A. Heller 1916-7-21 12481 Siskiyou near Upton. 1097 Comment
  JEPS83243  Lupinus lepidus var. sellulus W. L. Jepson 1940-6-28 20060 Siskiyou McCloud 975 Comment
  SEINET8056238  Lupinus lepidus var. sellulus G. D. Butler 1910-9-11 1867 Siskiyou Weed Comment
  UCD108589  Lupinus lepidus var. sellulus Robert E. Preston 1996-7-22 974 Siskiyou north of Medicine Lake. 2026 Comment
  SEINET10485529  Lupinus leucophyllus var. belliae Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6978 Siskiyou Wester yellow pine, libocedrus, douglas fir forest, 6 mi. Sw of callahan. 1524 Comment
  POM25660  Lupinus luteolus Geo. D. Butler 1908-6-23 375 Siskiyou Dry land near Yreka. Comment
  SD88330  Lupinus sellulus Darley F. Howe 1972-7-8 Siskiyou 11.5 miles north of Weed on Highway 97. 4000 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
  UC1265317  Luzula comosa var. laxa Frederick W. Oettinger 1969-8-16 1398 Siskiyou Salmon Mountains. Western Siskiyou County. The High Lake Basins in the Vicinity of English Peak. Marble Mountain Wilderness Area. SW of Wiregrass Meadow below English Lake 1676 Comment
  RSA238894  Luzula divaricata Frederick W. Oettinger 1968-8-8 447 Siskiyou Where the old Tanner s Peak trail meets the English Peak trail along the ridge leading up to the peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  UC1265318  Luzula divaricata Frederick W. Oettinger 1968-8-8 447 Siskiyou along ridge English Peak trail (High Lake Basins in the vicinity of English Peak, Salmon Mountains, western Siskiyou County, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 2164 Comment
  UC2956  Luzula macrantha Harley P. Chandler June, 1901 1562 Siskiyou North Coast Ranges. Ridges and meadows near Marble Mountain (Klamath River to Marble Mountain) 1828 Comment
  HSC41066  Luzula parviflora J. O. Sawyer 1969-6-12 897 Siskiyou Along Rd. 41N14 S of Sugar Creek Comment
  POM215860  Luzula parviflora L. C. Wheeler 1934-6-18 2726 Siskiyou Cottonwood Creek, Siskiyou Mts. Mt. Diablo Mer. 1311 Comment
  UC1265299  Luzula parviflora Frederick W. Oettinger 1968-9-9 800 Siskiyou stream bank meadow that runs from Tom's Lower Pond (High Lake Basins in vicinity of English Peak, western Siskiyou County); Marble Mountain Wilderness Area, Salmon Mountains 2011 Comment
  HSC24636  Lycium barbarum L. C. Wheeler 1934-11-4 3356 Siskiyou Scott Bar, Scott River, Marble Mts. 518 Comment
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Dec 6 2014
  OBI2049  Lysimachia latifolia J. H. Applegarth 1969-6-22 s.n. Siskiyou Jctn of Cow Crk and Grouse Crk 914 Comment
  POM52120  Machaeranthera canescens var. shastensis George B. Grant 1902-9-7 5111 Siskiyou Mt. Shasta 2439 Comment
  CAS-BOT-BC344005  Madia elegans Geo. D. Butler 1910-5-27 1413 Siskiyou Near Yreka Comment
  HSC72347  Madia elegans J. P. Smith, Linda M. Barker, J. Cole 1976-7-29 8960 Siskiyou Etna Campground 671 Comment
  POM56180  Madia elegans subsp. elegans E. B. Copeland 1903-8-13 3820 Siskiyou Sisson. 1067 Comment
  RSA606132  Madia elegans subsp. elegans L. C. Wheeler 1935-6-13 3584 Siskiyou North side Scott River, Scott Bar Mountains 793 Comment
  JEPS40233  Madia gracilis Geo. D. Butler 1908-7-20 Siskiyou w side Humbug Mountain Comment
  OBI55434  Madia gracilis David J. Keil 1992-7-20 23493 Siskiyou Klamath NF, W of Fort Jones. Along Forest Rd 44N45, 3.9 mi S of Scott river rd Comment
  HSC61171  Maianthemum racemosum subsp. amplexicaule Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  HSC68380  Maianthemum racemosum subsp. amplexicaule Maralyn A. Renner 1980-6-26 1208 Siskiyou Flint Valley 1390 Comment
  HSC99338  Maianthemum racemosum subsp. amplexicaule G. L. Clifton 1979-7-1 6192 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  HSC18916  Maianthemum stellatum J. O. Sawyer 1968-6-18 205 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  UCD78003  Maianthemum stellatum Robert E. Preston 2001-6-30 1664 Siskiyou Klamath National Forest, Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  CAS-BOT-BC348079  Matricaria discoidea A. A. Heller 1916-7-20 12461 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UC163675  Medicago lupulina Geo. D. Butler 1908-6-20 1039 Siskiyou along creek near Yreka Comment
  UC60891  Medicago lupulina W. A. Setchell, C. C. Dobie 1902-7-16 Siskiyou Sisson Mount Shasta Comment
  CAS-BOT-BC271214  Melica bulbosa K. T. Stillman 1976-7-15 248 Siskiyou Marble Mountain Wilderness Area Comment
  HSC76712  Melica bulbosa K. T. Stillman 1976-7-30 344 Siskiyou Marble Mtn. Wilderness Area, Upper Marble Valley. 1829 Comment
  POM265992  Melica californica Lincoln Constance, R. C. Rollins 1942-5-14 2934 Siskiyou Shasta River 6 miles north of Yreka. 762 Comment
  CHSC61579  Melica fugax L. P. Janeway 1983-8-28 630 Siskiyou Siskiyou Mountains; at Poker Flat, western side of meadow. 1524 Comment
  CAS-BOT-BC282075  Melica fugax A. A. Heller 1921-7-7 13518 Siskiyou Mount Eddy W of Wagon Creek 2133 Comment
  UCD87354  Melica geyeri R. Tofsrud 1948-8-1 s.n. Siskiyou Near summit of road between Happy Camp and O'Brien, Oregon. Comment
  SEINET10599434  Melica harfordii F. Marion Ownbey 1940-7-7 Ownbey 2217 Siskiyou Gravelly soil in open places near summit of Cayenne Ridge, Marble Mountain. Comment
  JEPS100299  Melilotus indicus Dean W. Taylor 2001-8-28 17907 Siskiyou 12 air mi NE of McCloud (Ash Creek Butte, western base of); Mount Shasta, upper Sacramento River watershed 1767 Comment
  SEINET516323  Mentha arvensis Vernon H. Oswald 1998-9-16 9635 Siskiyou Vista point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi E of Hwy. 97. 1244 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
  SBBG14878  Mentzelia A. I. Richardson 1961-6-8 16 Siskiyou Big Springs Rd N of jct with Hwy 97 914 Comment
  JEPS48636  Mentzelia dispersa Geo. D. Butler 1909-6-12 906 Siskiyou McAdams Creek Comment
  CAS-BOT-BC428545  Micranthes aprica G. J. Muth 1969-8-10 1323 Siskiyou Ridge w. of Boulder Peak Comment
  CAS-BOT-BC429150  Micranthes odontoloma Freed Hoffman 1951-7-12 4033 Siskiyou Western Siskiyou County, Marble Mountains. Hammond's Stock-raising Camp, on Kelsey Creek, about 8 mi. above Scott River 1524 Comment
  CAS-BOT-BC429260  Micranthes oregana A. A. Heller 1905-6-15 8031 Siskiyou Sisson Comment
  UC1048144  Microseris laciniata subsp. laciniata Univ. of Calif., Division of Genetics 600 Siskiyou Comment
  HSC22288  Microseris nutans J. O. Sawyer 1969-7-3 1051 Siskiyou Near Lipstick Lake 1951 Comment
  JEPS93851  Microseris nutans Vernon H. Oswald and Lowell Ahart 1998-6-11 9198 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
  RSA17746  Microseris nutans Elmer I. Applegate 1935-6-8 9417 Siskiyou Bear Paw Cave, Lava Beds National Monument. Comment
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Dec 17 2015
  SJSU6479  Microseris nutans R. W. Trivelpiece 1972-6-9 93 Siskiyou c. 4 mi E of Grass L 1524 Comment
  POM229882  Microseris nutans L. C. Wheeler 1935-6-27 3607 Siskiyou Head of Etna Creek, Marble Mountains. 1799 Comment
  HSC61928  Microsteris gracilis Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  HSC76976  Microsteris gracilis K. T. Stillman 1976-6-25 43 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  RSA529977  Mimulus bicolor D. W. Taylor, R. E. Palmer 1988-6-23 9864 Siskiyou Ca. 4 miles N of Timbered Crater, ca. 1 mile SE of Adobe Flat. 1098 Comment
  HSC22473  Mimulus breweri J. O. Sawyer 1969-7-1 994 Siskiyou SE slope above Paynes Lake Creek 1921 Comment
  RSA237539  Mimulus breweri Frederick W. Oettinger 1967-7-26 186 Siskiyou Stream bank below spring at Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  UC1037453  Mimulus inodorus Milo S. Baker and Douglas Barbe 1955-6-30 55 Siskiyou 0.6 mi nw Forest Camp, Etna; Klamath Mountains, Johnson Creek 914 Comment
  UC917313  Mimulus inodorus R. Tofsrud and J. M. Tucker 1948-8-3 1778 Siskiyou 3 mi (by road) below summit Happy Camp to Waldo (Oregon) road Comment
  UC1019310  Mimulus kelloggii Dorothy Parker 1953-5-24 536 Siskiyou Scott River Siskiyou Mountains 609 Comment
  JEPS8211  Mimulus layneae Willis L. Jepson 1894-8-9 71 m Siskiyou betweeen Sims and Sisson; Upper Sacramento Region Comment
  JEPS4201  Mimulus layneae A. A. Heller 1938-7-12 15248 Siskiyou 5 mi n Weed (on U. S. Highway #97) 1066 Comment
  UC164261  Mimulus lewisii Geo. D. Butler 1908-8-8 435 Siskiyou Marble Valley Comment
  POM213937  Mimulus moschatus Unspecified 1934-6-9 s.n. Siskiyou Ney Creek, 1/8 mile from junction with Sacramento River. 732 Comment
  RSA183720  Mimulus moschatus Gilbert Muth 1965-8-3 153 Siskiyou Marble Valley, Marble Mts. Comment
  HSC90991  Mimulus nanus Jennifer Whipple 1976-8-20 1716 Siskiyou S face of Mt. Eddy draining into the N Fork of the Sacramento River 2470 Comment
  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
  HSC90992  Mimulus nanus Jennifer Whipple 1976-7-14 1464 Siskiyou Trinity and Siskiyou Counties: Summit region of Mt. Eddy 2591 Comment
  RSA48209  Mimulus nanus var. nanus Roxana S. Ferris, Laura Lorraine 1948-6-12 11851 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1418 Comment
  UC27122  Mimulus torreyi F. W. Morse 1886-1 Siskiyou Shasta Comment
  CAS-BOT-BC174736  Minuartia nuttallii A. A. Heller 1915-8-26 12219 Siskiyou Near the source of Wagon Creek, Mt. Eddy 2590 Comment
  SFV1205  Minuartia nuttallii subsp. gracilis D. Parker 1953-8-3 155 Siskiyou Above cabin Meadow Creek, near Cory Peak. 1982 Comment
  UC722977  Minuartia nuttallii subsp. gregaria C. L. Hitchcock and J. S. Martin 1939-7-7 5279 Siskiyou 1/2 mi below Sanger Peak Lookout 1524 Comment
  HSC104140  Minuartia rubella Dana York 2011-8-13 3067 Siskiyou Klamath National Forest, Marble Mountain Wilderness, 230 m W-SW of Black Marble Mountain 2220 Comment
  CAS-BOT-BC229606  Mirabilis greenei Geo. D. Butler 1909-5-16 774 Siskiyou Hill E from Yreka Comment
  SEINET3149779  Mirabilis greenei G. E. Pilz 1972-5-29 800 Siskiyou Collected 4 mi N of Yreka 700 Comment
  RSA123579  Mitella breweri G. D. Barbe 1955-7-9 149 Siskiyou S side of Kangaroo Lake, Scott Mtns. 1829 Comment
  UC637056  Mitella trifida Edward Lee 1934-8-13 1082 Siskiyou Happy Camp-Waldo (Oregon) Road Klamath Nat. For., West Branch of Indian Creek watershed 1463 Comment
  CAS-BOT-BC433073  Mitella trifida Doris K. Kildale 1928-7-4 5478 Siskiyou 3 miles west of summit on road from Sawyers Bar to Etna Mills Comment
  RSA183701  Mitella trifida Gilbert Muth 1965-8-18 236 Siskiyou Marble Mts.; trail behind Black Mt. Comment
  UCSB24595  Mitellastra caulescens Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  UC1053436  Moehringia macrophylla Rimo Bacigalupi and Arthur Holmgren 1950-4-24 3138 Siskiyou opposite town Dunsmuir (on e side of canyon, cliffs along Sacramento River); cliffs along Sacramento River, e side of canyon Comment
  CHSC763  Monardella odoratissima K. Jaekal 1939-7-6 Siskiyou Black Butte Meadows, Mt. Shasta. 1158 Comment
  HSC22245  Monardella odoratissima J. O. Sawyer 1969-7-24 1470 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  CAS-BOT-BC222032  Monardella odoratissima subsp. glauca A. A. Heller 1915-7-16 12105 Siskiyou North side of Mt. Eddy 1371 Comment
  CHSC99716  Monardella odoratissima subsp. glauca L. P. Janeway 2008-7-24 9484 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. 2050 Comment
  UC2035829  Monardella odoratissima subsp. glauca John Thomas Howell 1937-7-29 13652 Siskiyou Scott Mt. between Trinity and Siskiyou Counties. Comment
  UC54605  Monardella odoratissima subsp. glauca H. M. Hall and E. B. Babcock June 1903 4057 Siskiyou Sisson Sierra Nevada Mts., Mt. Shasta, Sisson 1036 Comment
  UC722274  Monardella odoratissima subsp. glauca C. L. Hitchcock, J. S. Martin 1939-7-6 5213 Siskiyou Takilma-Happy Camp road 1676 Comment
  JEPS63424  Monardella odoratissima subsp. pallida W. L. Jepson 1894-8-4 59 f Siskiyou Mt. Shasta Comment
  UC1096813  Monardella odoratissima subsp. pallida H. K. Wagnon 1957-8-11 1702 Siskiyou Mt. Shasta ca. 1 mi W of Military Pass Road, along road to Brewer Creek. Comment
  POM257708  Monardella odoratissima subsp. pallida C. L. Hitchcock, J. S. Martin 1939-7-6 5213 Siskiyou on Takilma-Happy Camp Road 1677 Comment
  CAS-BOT-BC220225  Monardella sheltonii Louis C. Wheeler 1934-6-9 2664 Siskiyou Klamath National Forest. Klamath R. near Dutch Cr. 670 Comment
  JEPS73668  Monardella siskiyouensis W. L. Jepson 1940-6-22 19974 Siskiyou near Hornbrook; Klamath River 670 Comment
  UC637109  Monardella siskiyouensis Annetta Carter 1934-8-12 695 Siskiyou near mouth Walker Creek (n side of river, n side of valley); Klamath River, Seiad Valley 426 Comment
  SEINET10498958  Monardella villosa subsp. subserrata Morris 1973-6-2 MORRIS 362 Siskiyou Jct of shasta and klamath rivers on hwy 263 Comment
  RSA8239  Monotropa hypopitys Elmer I. Applegate 1923-8-18 3855 Siskiyou West slope of Redshale Mountain east of Medicine Lake. 2134 Comment
  CAS-BOT-BC445111  Montia linearis James P. Smith 1974-5-25 7472 Siskiyou Along Road 8, 4.7 miles west of its junction with State Route 3. 1158 Comment
  CAS-BOT-BC445203  Montia parvifolia Carl B. Wolf 1927-8-27 1141 Siskiyou On the Klamath River at the mouth of Crawford Creek Comment
  HSC65573  Montia parvifolia R. White 1977-7-7 113 Siskiyou Devil's Punchbowl, NE shore 1433 Comment
  UCD101769  Montia parvifolia J. M. Tucker; L. K. Mann 1963-7-4 3696 Siskiyou vicinity of U.S. Forest Service Public Camp, just east of Finley Camp, road from Etna to Sawyer's Bar. Comment
  CAS-BOT-BC262613  Muhlenbergia andina K. T. Stillman 1976-9-10 507 Siskiyou Marble Mountain Wilderness Area. Up across Marble on east side of Black Mtn. 2103 Comment
  JEPS120259  Muhlenbergia filiformis Julie Kierstead Nelson 2011-8-23 2011 -45 Siskiyou Eastern Klamath Mountains, The Eddys. North side of Fawn Creek, 2 miles NE of Gumboot Lake Comment
  JEPS25665  Muhlenbergia filiformis Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7308 Siskiyou 4 air-line mi nne Preston Peak (meadow, just e of Del Norte Co. line); Siskiyou Mts., Twin Valley, watershed of Indian Creek 1493 Comment
  LA9644  Muhlenbergia filiformis J. R. Swallen; 1939-7-7 13604 Siskiyou Mount Shasta, Along the road between Bear Springs and Wagon Camp 1676 Comment
  JEPS44091  Nama densa W. B. and V. G. Cooke 1965-7-12 35194 Siskiyou Bolam Road , Bolam Road (Mt. Shasta) 1706 Comment
  UCR93378  Nama lobbii Kathy Harper, D. Karr 1994-6-15 s.n. Siskiyou Vicinity of Bartle, c. 0.25 mi. south of McIntosh Vista on road between Calif. Hwy 89 and Pioneer Hill Road 1341 Comment
  HSC30410  Narthecium californicum Frederick W. Oettinger 1969-7-31 1112 Siskiyou Marble Mtn. Wilderness Area, W of English Lake 1936 Comment
  HSC564  Narthecium californicum William J. Ferlatte 1967-6-27 530 Siskiyou Big Flat, between campground and S Fork of the Salmon River 1524 Comment
  POM74489  Navarretia intertexta Edward Palmer 1892-7-13 2451 Siskiyou Mt. Shasta and vicinity. Comment
  JEPS93883  Navarretia intertexta subsp. intertexta Vernon H. Oswald and Lowell Ahart 1998-7-21 9334 Siskiyou on the s side of Tennant Road 0.4 mi se of Old State Highway to Bray (ne of Weed and e of Grass Lake at a gravel pit); Tennant Road 1402 Comment
  POM75061  Navarretia pubescens Geo D. Butler 1909-5-10 740 Siskiyou Near Yreka. Comment
  CHSC88392  Navarretia sinistra Jenny Marr 1993-7-1 151 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS70476  Navarretia tagetina W. L. Jepson 1940-6-22 19966 Siskiyou Hutton Creek near Hornbrook; Hutton Creek 792 Comment
  CAS-BOT-BC219531  Nemophila parviflora John Thomas Howell 1937-7-22 13267 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC99332  Nepeta cataria C. B. Wolf 1927-8-26 1046 Siskiyou Along Klamath River, 4 mi. N of Gottville Comment
  HSC67615  Nicotiana attenuata J. P. Smith, Steve Selva 1970-8-8 4574 Siskiyou Lava Beds National Monument Comment
  JEPS81665  Nicotiana attenuata L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2293 Siskiyou 0.2 mi n U.S. Highway 97 junction with Yreka road (along U.S. Highway 97, n of Mt Shasta) Comment
  UCD126706  Nicotiana attenuata P. Quentin Tomich 1954-6-18 441 Siskiyou Indian Well, Lava Beds National Monument. 1463 Comment
  RSA478854  Nitrophila occidentalis L. C. Wheeler 1934-10-21 3341 Siskiyou Shasta Valley 8 miles NE of Gazelle. 869 Comment
  CAS-BOT-BC60581  Noccaea fendleri subsp. glauca Geo. D. Butler 1910-6-4 1503 Siskiyou Shackleford Creek. Comment
  CAS-BOT-BC60596  Noccaea fendleri subsp. glauca R. C. Barneby 1954-5-16 11532 Siskiyou 6 miles southwest of Yreka. 975 Comment
  HSC81838  Noccaea fendleri subsp. glauca Thomas W. Nelson, Jane P. Nelson 1980-7-20 6182 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  JEPS93853  Nothocalais troximoides Vernon H. Oswald and Lowell Ahart 1998-6-11 9199 Siskiyou Dry Lake on south side of Tennant Road, ca. 9 air mi east of Grass Lake, ca 22 air mi northeast of Weed. 1402 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
  UC1238906  Nothochelone nemorosa Freed W. Hoffman 1950-7-11 3494 Siskiyou Cedar Camp Road 30.1 mi from Klamath Highway (western Siskiyou County); North Coast Ranges, Cedar Camp Road Comment
  UC1409400  Nuphar lutea subsp. polysepala Frederick W. Oettinger 1968-9-3 672 Siskiyou at n end of Horse Range Lake, High Lake Basins in vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area Horse Range Lake; Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  HSC29309  Nuphar polysepala Frederick W. Oettinger 1969-8-1 1139 Siskiyou Marble Mtn. Wilderness Area, English Lake near inlet 1753 Comment
  SEINET5345688  Oenothera deltoides var. piperi G. Butler Unknown 2000 Siskiyou No data. Comment
  SEINET4171086 Image available Olsynium douglasii Sandra L. Holloway 1963-4-9 18 Siskiyou Road to Pythian Cave, between Yreka and Grenada, west of U.S. Highway 99 762 Comment
  JEPS20032  Olsynium douglasii var. douglasii George D. Butler 1909-3-14 561 Siskiyou near Yreka; Wetzel's field Comment
  UC1276071  Onopordum tauricum T. C. Fuller 1959-12-10 3324 Siskiyou just s of Sam's Neck; Fred Voelker ranch, Meiss Lake Basin, Dorris Comment
  SEINET5708888 Image available Oreostemma alpigenum var. andersonii Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7704 Siskiyou Scott Mts. Collected along Road 17, 12.7 miles SW from the intersection of I-5 and Stewart Springs road.; Scott Mountains 2036 Comment
  CAS-BOT-BC499826  Orobanche corymbosa subsp. corymbosa Peter H. Raven 1956-8-11 10066 Siskiyou 9.6 mi S of turnoff to Bray on US Hwy \97 Comment
  HSC19212  Orthilia secunda J. O. Sawyer 1968-9-13 717 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC19215  Orthilia secunda J. O. Sawyer 1968-9-10 683 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  SD230221  Orthilia secunda Louis C. Wheeler 1959-7-25 7594 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  UC1408765  Orthilia secunda Frederick W. Oettinger 1968-8-5 409 Siskiyou North of English Peak on way down to Upper English Lake. 1950 Comment
  UC141178  Orthilia secunda Dr. E. B. Copeland 1903-9-6 3924 Siskiyou Mt. Eddy 1371 Comment
  CAS-BOT-BC458080  Orthilia secunda W. R. Dudley 1899-8-9 s.n. Siskiyou Black Butte Comment
  CAS-BOT-BC266622  Orthocarpus cuspidatus James L. Reveal; Mark L. Reveal 1975-8-15 3953 Siskiyou Siskiyou Mountains, Klamath National Forest, along the Dry Lake Lookout Road, Forest Service Road 40S01, 0.6 mile N of the turnoff to Deep Camp and about 2.7 miles SE of Dry Lake Lookout Comment
  HSC86557  Orthocarpus cuspidatus subsp. copelandii D. K. Imper Jul 1987 Siskiyou Marble Mtn. Wilderness Area, Haypress Meadow, 8 mi. E of Somes Bar 1372 Comment
  JEPS23800  Orthocarpus cuspidatus subsp. copelandii Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-2 7231 Siskiyou near n base Caribou Mtn (Big Flat Campground, headwaters of South Fork of Salmon River, and just s of low divide separating Coffee Creek drainage from that of Salmon River); South Fork of Salmon River, Coffee Creek drainage 1508 Comment
  JEPS4543  Orthocarpus cuspidatus subsp. copelandii L. E. Smith 1913-9-1 Siskiyou Mt. Eddy Comment
  JEPS74483  Orthocarpus cuspidatus subsp. copelandii W. J. Ferlatte 1966-8-2 238 Siskiyou Big Flat; Trinity Alps, Big Flat 1524 Comment
  UC1409423  Orthocarpus cuspidatus subsp. copelandii Frederick W. Oettinger and R. F. Thorne 1969-8-6 1295 Siskiyou (high lake basins in vicinity of English Peak) English Lake Region; Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  UCD123234  Orthocarpus cuspidatus subsp. copelandii J. M. Tucker; L. K Mann 1963-8-17 3741 Siskiyou beside trail from Red Rock Valley to top of ridge to south, and near top of ridge, Marble Mountain Wilderness Area. 1859 Comment
  RSA407991  Orthocarpus hispidus Louis C. Wheeler 1935-5-18 3497 Siskiyou Siskiyou Mountains; Yreka Creek. 854 Comment
  NY90857  Orthocarpus pachystachyus E. L. Greene 1876-5-26 s.n. Siskiyou Comment
  SEINET10483819  Osmaronia cerasiformis David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-3 Dunn 20648 Siskiyou Vicinity of the campground on the salmon river, 8.3 miles w of cecilville. Yellow pine forest with douglas fir. Area with mostly metamorphic rocks. Area Very rocky and gravelly. Comment
  JEPS25627  Osmorhiza berteroi Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7264 Siskiyou Poker Flat 1536 Comment
  UCD111336  Oxalis trilliifolia J. M. Tucker 1974-7-28 4331 Siskiyou 1 mile south of Haypress Meadows, beside trail to Camp 4, Marble Mountain Wilderness Area. 1463 Comment
  CAS-BOT-BC316754  Packera cana William Bridge Cooke 1939-8-10 13874 Siskiyou Scattered in a small colony along the west bank of Mud Creek Canyon. Upper Hudsonian Zone. 2895 Comment
  UC53872  Packera cana H. M. Hall and E. B. Babcock June 1903 4095 Siskiyou near Sheep Rock; n side Mount Shasta 853 Comment
  CAS-BOT-BC316759  Packera cana Elmer Ivan Applegate 9477 Siskiyou Thomas massacre area, Lava Beds national Monument Comment
  CAS-BOT-BC28835  Paeonia brownii George Dexter Butler 1910-4-23 1229 Siskiyou Quartz Valley Comment
  UC618683  Paeonia brownii W. Bridge Cooke 1938-7-15 11261 Siskiyou Wagon Camp meaows Mount Shasta, Wagon Camp (upper end and around sides) Comment
  CAS-BOT-BC28783  Paeonia brownii Dorothy Parker 1948-5-18 s.n. Siskiyou West side of Scott Valley 914 Comment
  CHSC71898  Panicum capillare Vernon H. Oswald; Lowell Ahart 1998-9-8 9606 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir. 1112 Comment
  UCSC004604  Panicum dichotomiflorum subsp. dichotomiflorum Randall Morgan 2004-8-3 4272 Siskiyou Castle Crags State Park, Sacramento River Comment
  CAS-BOT-BC94880  Parnassia californica R. C. Wenk 2006-9-3 564 Siskiyou Coffee Creek Road, Big Flat Meadow, S end of meadow above S Fork of Salmon River 1508 Comment
  RSA68923  Parnassia californica A. E. Culbertson 1943-9-3 34 Siskiyou Castle Lake. 14 Miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mts.2000' above Sacramento River within 10 air miles of its headwaters to the west. 1657 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
  JEPS23862  Pastinaca sativa Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7210 Siskiyou along irrigation ditch in front of lawn of Mt. Shasta Union High School (ne outskirts of town); Mt. Shasta town (old Sisson) 1097 Comment
  CAS-BOT-BC202853  Paxistima myrsinites Doris K. Kildale 1929-7-21 8740 Siskiyou Elk Lick, south fork Indian Creek 1219 Comment
  UC1185941  Paxistima myrsinites L. E. Detling 1950-6-9 6598 Siskiyou Black Butte Summit (Hwy. 99) 1188 Comment
  JEPS124777 Image available Paxistima myrsinites Lynne C. Carter 1967-7-12 102 Siskiyou ca. 1/4 mile west of entrance to Fowler Campground. On rocky cliff above McCloud River. Comment
  RSA401964B  Pedicularis aurantiaca Christopher Davidson 1975-6-5 2684 Siskiyou 0.8 mi N of Scott Mtn Summit on Hwy 3. 1585 Comment
  CAS-BOT-BC266653  Pedicularis bracteosa var. flavida Gilbert Muth 1969-8-11 s.n. Siskiyou Beneath high point of ridge S of Boulder Peak Comment
  HSC688  Pedicularis contorta William J. Ferlatte 1967-8-20 1064 Siskiyou Caribou Basin 1982 Comment
  RSA211121  Pedicularis contorta William J. Ferlatte 1966-8-17 397 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  CAS-BOT-BC67688  Pellaea brachyptera W. R. Dudley 1899-8-9 s.n. Siskiyou Black Butte Comment
  RSA87592  Pellaea brachyptera Arthur R. Kruckeberg 1951-9-3 2802 Siskiyou On open dirt road above Joe Spini Ranch, just west of town of Mount Shasta, across river, between Wagon Creek and Deer Creek Bridges 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
  CAS-BOT-BC69319  Pellaea brachyptera W. B. C. 1938-6-17 11036 Siskiyou Along the Sisson Southern Trail 1371 Comment
  RSA686823  Pellaea breweri M. B. Dunkle 1945-8-7 9335 Siskiyou King's Casle. Marble Mtns, Klamath National Forest. Comment
  UC164351  Penstemon anguineus Geo. D. Butler 1908-7-20 935 Siskiyou Highland Mine Comment
  CDA41886  Penstemon anguineus T. C. Fuller 1974-9-24 20029 Siskiyou Above Reeves Ranch Spring, south slope of the Siskiyou Mountains. 0 Comment
  SEINET5326467 Image available Penstemon anguineus G. Butler 1910-7-12 1761 Siskiyou Shackleford Creek 1219 Comment
  SEINET3160250  Penstemon confertus G. D. Butler 1909-6-22 934 Siskiyou Gooseness Mts. Comment
  CAS-BOT-BC265371  Penstemon davidsonii var. davidsonii Elmer I. Applegate 1923-8-18 3858 Siskiyou Crest of Redshale Mountain, Medicine Lake region 2438 Comment
  UC1037430  Penstemon davidsonii var. davidsonii Douglas Barbe 1955-8-1 324 Siskiyou Mount Bolivar, summmit Scott Mountains 2468 Comment
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Mar 6 2013
  HSC58887  Penstemon deustus Marvin Butler 1971-7-12 117 Siskiyou Near Copper Camp, close to the town of Cave Junction 1464 Comment
  RSA412527  Penstemon deustus Louis C. Wheeler 1934-6-9 2668 Siskiyou Dutch Creek off Klamath River. Siskiyou Mtns. 610 Comment
  RSA412528  Penstemon deustus M. B. Dunkle 1945-7-6 9207 Siskiyou Black Marble Mtn. Klamath National Forest. Marble Mtns. 2195 Comment
  JEPS11235  Penstemon deustus var. deustus W. L. Jepson July, 1894 21421 Siskiyou n Sisson (Muir Peak (Black Butte)); , n of Sisson Comment
  JEPS11236  Penstemon deustus var. deustus W. L. Jepson 1940-6-22 19972 Siskiyou Klamath River near Hornbrook; Klamath River near Hornbrook 670 Comment
  SD61023  Penstemon deustus var. pedicellatus Darley F. Howe 1964-8-4 3932 Siskiyou 9 mi. from entrance to Modoc Nat. Forest. Lava Bed Nat. Monument 2042 Comment
  JEPS26524  Penstemon deustus var. suffrutescens Lauramay T. Dempster 1961-7-2 1862 Siskiyou s.w. Etna (ridge w. of Salmon Mt. Summit) 1828 Comment
  UC164358  Penstemon deustus var. suffrutescens Geo. D. Butler 1908-7-12 434 Siskiyou dry hills near Yreka; Dry hills near Yreka Comment
  UC479134  Penstemon gracilentus Marcus E. Jones, A. M. 1931-7-17 28827 Siskiyou Session's Shasta City (Session's) [= Sissons] (Shasta City) Comment
  UC61051  Penstemon gracilentus W. A. Setchell, C. C. Dobie 1902-7-16 Siskiyou Sisson , Sisson (Mount Shasta) Comment
  UCD124184  Penstemon gracilentus J. M Tucker 1950-7-23 1939 Siskiyou Mount Shasta, 3.9 miles (by road) west of Panther Meadows. 1828 Comment
  CHSC1887  Penstemon heterodoxus var. shastensis N. Jaekal 1939-7-8 Siskiyou Near Horse Camp on Mt. Shasta. 2133 Comment
  CHSC97345  Penstemon heterodoxus var. shastensis Jenny Marr 2006-6-18 232 Siskiyou Cascade Range High. Plants collected along Hwy. 97. 1524 Comment
  JEPS23804  Penstemon laetus var. sagittatus Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7291 Siskiyou Poker Flat 1536 Comment
  JEPS83891  Penstemon laetus var. sagittatus Wayne Roderick Jul 1976 Siskiyou along Copper Butte Trail Siskiyou Mountains Comment
  RSA151968  Penstemon laetus var. sagittatus R. C. Bacigalupi, L. R. Heckard, G. Bacigalupi, Ruth D. Sanderson 1952-6-18 3741 Siskiyou Near Panther Creek Guard Station, along Little Shasta River, 17 mi E of Montague on forest road to Mt. Hebron. 1280 Comment
  RSA401783  Penstemon newberryi Louis C. Wheeler 1934-8-5 3044 Siskiyou Condrey Mt., Siskiyou Mts. Mt. Diablo Mer. 2165 Comment
  SDSU10960  Penstemon newberryi D. F. Howe 1962-8-6 3405 Siskiyou Mt. Shasta, Shasta National Forest. 2438 Comment
  HSC614  Penstemon newberryi subsp. berryi William J. Ferlatte 1966-7-7 194 Siskiyou Caribou Basin 1982 Comment
  CAS-BOT-BC239334  Penstemon newberryi var. berryi L. E. Smith 1913-6-18 368 Siskiyou Road from Sisson to Castle Lake Comment
  CAS-BOT-BC239339  Penstemon newberryi var. berryi A. A. Heller 1905-6-16 8048 Siskiyou Near Sisson Comment
  NY627424  Penstemon newberryi var. berryi I. L. Wiggins 1955-7-27 13537 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042.2 Comment
  UCD77907  Penstemon newberryi var. newberryi Robert E. Preston 2001-6-23 1589 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, T42N R1W nw 1/4 of ne 1/4 Section 23 1950 Comment
  SEINET10865390  Penstemon parvulus F. Marion Ownbey, Ruth P. Ownbey 1938-7-19 Ownbey 1749 Siskiyou Rocky knoll, 2 1/2 mi nw of dry lake lookout, summit of the siskiyou mtns. Comment
  UC1238905  Penstemon parvulus Freed W. Hoffman 1951-7-21 4058 Siskiyou 1/2 mi e summit (on road from a point 1.1 mi n of Gazelle, w towards Fort Jones, and 9.3 mi on this road); North Coast Ranges, Scarface Mtn., n of Gazelle Comment
  RSA238755  Penstemon procerus subsp. brachyanthus Frederick W. Oettinger 1967-7-20 178 Siskiyou SSE of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  NY650119  Penstemon roezlii F. W. Pennell 1940-7-20 26206 Siskiyou Route 89, west of Dead Horse Summit, east of Bartle 1158.2 Comment
  UC163814  Penstemon roezlii Geo. D. Butler 1909-6-22 933 Siskiyou foothills of Goosenest Mt. Goosenest Mountain Comment
  JEPS11386  Penstemon speciosus Leonard Joss 1922-1 Siskiyou Etna Mills Comment
  NY661065  Penstemon speciosus W. B. Cooke 1940-6-7 15102 Siskiyou Along the Pacific Highway near Black Butte 4000 Comment
  UC1428123  Perideridia gairdneri subsp. borealis James E. Eckenwalder 1972-9-4 886 Siskiyou headwaters of Clear Creek Young's Valley (Young's Valley, Siskiyou Mountains (S.S.)); Siskiyou Mountains, headwaters Clear Creek Comment
  UC1312907  Perideridia leptocarpa L. Constance and T. I. Chuang 1967-7-22 3802 Siskiyou 5 mi nw Cecilville (w-facing slope above river); Trinity River 762 Comment
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Mar 2 2015
  HSC43049  Persicaria lapathifolia K. T. Stillman 1976-8-24 440 Siskiyou Along the Klamath River at Williams Point 366 Comment
  CAS-BOT-BC330260  Petasites frigidus var. palmatus L. E. Smith 1913-4-24 101 Siskiyou Castle Crags Station Comment
  UC1051790  Phacelia L. R. Heckard 1952-6-18 307 Siskiyou about 0.5 mi w Panther Creek Guard Station (16 mi e of Montague on rd to Mt. Hebron) Comment
  RSA78825  Phacelia corymbosa P. A. Munz 1952-7-2 17903 Siskiyou Baldy Mountain, six air line miles west of Happy Camp, Siskiyou Mountains. 1738 Comment
  JEPS109690  Phacelia greenei Dean W. Taylor 2002-6-10 18130 Siskiyou Scott Mountain, between Grouse Creek and Little Carmen Creek along Forest Road 40N40 1005 Comment
  UC1034645  Phacelia hastata Milo S. Baker 1955-6-26 13077 Siskiyou between Weed and Gazelle; Shasta Val. 914 Comment
  JEPS2089  Phacelia heterophylla subsp. virgata Geo. D. Butler 1908-8-8 408 Siskiyou summit s Marble Mtn. 1828 Comment
  CDA40413  Phacelia heterophylla subsp. virgata E. Hale 1984-5-8 s.n. Siskiyou At junction of Shasta and Klamath Rivers, near Yreka. 0 Comment
  UC1034592  Phacelia heterophylla subsp. virgata Douglas Barbe 1955-7-1 70 Siskiyou 0.6 mi e Etna (s side of rd); Klamath Mountains 853 Comment
  UC24435  Phacelia linearis W. C. Blasdale 1896-6-18 Siskiyou Shasta Comment
  HSC24686  Phacelia mutabilis J. O. Sawyer 1969-7-9 1265 Siskiyou Summit above S Sugar Lake. 2378 Comment
  HSC29259  Phacelia mutabilis Frederick W. Oettinger 1968-8-11 482 Siskiyou Salmon Mtns., just below Tom Taylor Cabin Spring 2043 Comment
  HSC33325  Phacelia mutabilis William J. Ferlatte 1974-7-15 1545 Siskiyou Dorleska summit, Grouse Ridge, on Trinity Co. line yds. N of summit 2134 Comment
  JEPS1095  Phacelia pringlei John G. Lemmon September, 1879 Siskiyou near Shasta Comment
  UC1282009  Phacelia pringlei Louise Kellogg Aug 5 1953-Aug 7 1953 105 Siskiyou 1 mi n Cory Peak (11 mi e of Callahan on road to Gazelle, then s 5.8 mi on logging road); Scott Mountains, Klamath National Forest, Cabin Meadow 1844 Comment
  JEPS1091  Phacelia procera Ruby Van Deventer 1938-7-31 203 Siskiyou Poker Flat w. Siskiyou Mts. 1584 Comment
  JEPS1092  Phacelia procera W. L. Jepson 1937-7-30 18562 Siskiyou Poker Flat western Siskiyou Mts. Comment
  HSC13679  Phacelia ramosissima R. C. Wunner 1965-6-15 181 Siskiyou Lava Beds National Monument, E side of Caldwell Butte 1494 Comment
  JEPS107962  Phacelia ramosissima var. ramosissima Lowell Ahart, John Dittes 2005-6-10 12084 Siskiyou Under a juniper tree, about 50 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS73749  Phalaris canariensis George D. Butler 1908-6-25 488 Siskiyou Butler's Ranch near Yreka; Butler's Ranch Comment
  CAS-BOT-BC77407  Philadelphus lewisii H. P. Olmo 1933-6-8 s.n. Siskiyou Somes Bar, Klamath River Comment
  CAS-BOT-BC77427  Philadelphus lewisii Carl B. Wolf 1927-8-27 1127 Siskiyou On the Klamath River, 6 mi. below Happy Camp Comment
  UC1409254  Philadelphus lewisii Frederick W. Oettinger 1968-9-8 793 Siskiyou Abbott's Lake Salmon Mountains, Marble Mountain Wilderness Area (e side, high lake basins in vicinity of English Peak, w Siskiyou Co.) 1737 Comment
  CAS-BOT-BC250787  Phleum alpinum W. R. Dudley 1899-8-24 s.n. Siskiyou Meadow (Lunch Creek), Craggy Peak Comment
  JEPS82419  Phleum alpinum Gilbert Muth 1966-8-1 488 Siskiyou Marble Valley horse pasture Marble Mt. Wilderness Area; , Marble Valley horse pasture 1792 Comment
  UCD89313  Phleum alpinum Hursh 1919-9-11 X 3256 Siskiyou Grass Garden Herbarium. Comment
  CAS-BOT-BC294730  Phlox adsurgens James Vale 1980-7-24 s.n. Siskiyou Out of Happy Camp, road to Oregon Comment
  JEPS69924  Phlox adsurgens W. L. Jepson 1907-7-9 2861 Siskiyou near Putnam Peak; Klamath Range Comment
  HSC69741  Phlox diffusa Maralyn A. Renner 1980-6-26 1276 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  UC83567  Phlox diffusa Dr. E. B. Copeland 1903-7-17 3511 Siskiyou Mt. Shasta 2316 Comment
  POM75068  Phlox diffusa subsp. diffusa Geo D. Butler 1910-5-10 1320 Siskiyou Goosenest foothills 1677 Comment
  RSA183673  Phlox diffusa subsp. diffusa Gilbert Muth 1965-8-6 184 Siskiyou Marble Mountains; backside of Black Mountain Comment
  JEPS25628  Phlox gracilis Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7265 Siskiyou Poker Flat 1536 Comment
  UC1222726  Phlox gracilis Joseph P. Tracy 1951-6-16 19477 Siskiyou at crossing of Takilma and Happy Camp (near Oregon-California State line); Summit of the Siskiyous Comment
  UC23965  Phlox speciosa subsp. nitida C. B. Bradley 1879-1 Siskiyou Comment
  JEPS46197  Phlox speciosa subsp. occidentalis Duncan Dunning 1922-6-6 Siskiyou nw of Fort Jones; Moffett Creek Comment
  JEPS69984  Phlox speciosa subsp. occidentalis J. W. Kisling 1910-4-20 Siskiyou Edgewood 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
  CAS-BOT-BC135339  Phoradendron juniperinum L. E. Smith 1914-3-17 586 Siskiyou Weed Comment
  LA209831  Phoradendron juniperinum subsp. juniperinum Wm. Bridge Cooke; 1939-7-21 13699 Siskiyou Mount Shasta, on the SW side of the mountain. Howard 1219 Comment
  CAS-BOT-BC250993  Phragmites australis Louis C. Wheeler 1934-10-21 3335 Siskiyou Shasta Valley 4 miles E Grenada 868 Comment
  HSC7868  Phyllodoce empetriformis Dorothy Parker 1949-7-10 337 Siskiyou Near Paradise Lake, Salmon Mountain 1982 Comment
  UC142759  Phyllodoce empetriformis J. W. Congdon 1900-8-13 Siskiyou Mount Shasta Comment
  UCD117721  Phyllodoce empetriformis Jack Major 1961-7-14 633 Siskiyou Panther Meadows Campground, Mount Shasta. 2270 Comment
  UCD117723  Phyllodoce empetriformis Dean William Taylor 1972-7-3 1614 Siskiyou Near Little Duck Lake. 1981 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
  HSC76715  Physaria occidentalis K. T. Stillman 1976-7-30 347 Siskiyou Marble Mtn. Wilderness Area, Upper Marble Valley. 1829 Comment
  CAS-BOT-BC60774  Physaria occidentalis W. R. Dudley 1899-8-26 s.n. Siskiyou Summit of Mount Eddy. Comment
  HSC91034  Physaria occidentalis subsp. occidentalis Jennifer Whipple 1976-6-30 1186 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  HSC46767  Physocarpus capitatus William J. Ferlatte 1974-7-13 1513 Siskiyou Big Flat, steep banks of the S Fork of Salmon River just W of USFS campground 1463 Comment
  RSA68932  Physocarpus capitatus A. E. Culbertson 1943-7-16 26 Siskiyou Castle Lake, 5434', in a north facing cirque with an abrupt 1000' backwall; 14 miles s.w. of Mt. Shasta on n. side of a 6000' eastern spur of Trinity Wts. ; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. Comment
  CAS-BOT-BC78173  Picea breweriana Doris K. Kildale 1929-8-24 8839 Siskiyou Preston Peak 2225 Comment
  CHSC27346  Picea breweriana T. B. Devine 1976-11-23 366 Siskiyou Little Duck Lake, 1/8 mi ne. 2011 Comment
  HSC77150  Pinguicula macroceras L. P. Janeway 1983-7-24 454 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  HSC30652  Pinus albicaulis Frederick W. Oettinger 1966-8-27 51 Siskiyou S side of E Boulder Lake in the Scott Mtns. 2043 Comment
  CAS-BOT-BC78324  Pinus attenuata L. E. Smith 1913-6-12 365 Siskiyou Sisson Comment
  RSA639071  Pinus attenuata L. C. Wheeler 1958-8-18 7396 Siskiyou West Fork Seiad Creek. Comment
  CAS-BOT-BC78403  Pinus balfouriana Richard Mc. P Brown; Robert Craig 1974-7-26 s.n. Siskiyou Klamath National Forest, Trinity Alps, Caribou Lake 2097 Comment
  LA86572  Pinus balfouriana J. M. Tucker; L. K. Mann, Sandra L. Holloway 1963-8-18 3769 Siskiyou Marble Mountain Wilderness Area, SW ridge of Black Mountain (Black Marble Mountain) 2133 Comment
  CAS-BOT-BC73306  Pinus balfouriana Gilbert Muth 1966-8-6 178 Siskiyou North ridges of teh Marble rim, Marble Mts. Comment
  CAS-BOT-BC78412  Pinus balfouriana Milo S. Baker Aug 8 246 a-'26 Siskiyou Saddle bet. Red Mt and Granite 2286 Comment
  CAS-BOT-BC78712  Pinus jeffreyi J. M. Tucker 1963-8-18 3768 Siskiyou between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area 2103 Comment
  HSC37526  Pinus lambertiana J. P. Smith 1974-5-25 7436 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  NY61612  Pinus lambertiana A. A. Heller 1915-8-26 12253 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
  UC401397  Pinus lambertiana Geo. D. Butler 1908-7-12 517 Siskiyou Humbug Mountain Comment
  UCD134636  Pinus lambertiana Robert E. Preston 2002-7-12 1914 Siskiyou Klamath National Forest, S slope of Rainbow Mountain. 1950 Comment
  CAS-BOT-BC72870  Pinus ponderosa Doris K. Kildale 1928-7-3 5435 Siskiyou Forks of Salmon Comment
  RSA624392  Pinus ponderosa L. C. Wheeler 1952-9-17 6936 Siskiyou Unspecified. Comment
  RSA237643  Piperia unalascensis Frederick W. Oettinger 1967-7-30 224 Siskiyou Between Abbotts Lake and Charmine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  POM72946  Plagiobothrys bracteatus Geo. D. Butler 1910-5-29 1424 Siskiyou Near Yreka. Comment
  RSA610638  Plagiobothrys greenei L. C. Wheeler 1935-5-18 3496 Siskiyou Siskiyou Mountains; Yreka Creek (Mt. Diablo Mer.) 854 Comment
  JEPS69750  Plagiobothrys hispidus W. B. and V. G. Cooke 1972-6-30 45416 Siskiyou above Andesite Crossing (Military Pass Road); Mt. Shasta 1524 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
  RSA59809  Plagiobothrys tenellus E. K. Balls 1950-5-17 14721 Siskiyou New Lava Flow, along road from Schonchin Butte to Capt. Jack s Stronghold, Lava Beds Nat l Monument. 1463 Comment
  POM196578  Plantago eriopoda A. A. Heller 1927-8-2 14442 Siskiyou Near Gazelle, Shasta Valley. Comment
  RSA240062  Plantago major Frederick W. Oettinger 1969-8-12 1341 Siskiyou Near Abbott's Lower Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 945 Comment
  HSC67711  Platanthera dilatata var. leucostachys John S. Palmer 1980-7-24 611 Siskiyou Elk Hole 1503 Comment
  UC14944  Platanthera leucostachys Harley P. Chandler 1901-6-1 1726 Siskiyou near Marble Mountain (North Coast Ranges); North Coast Ranges 1828 Comment
  RSA237641  Platanthera stricta Frederick W. Oettinger 1967-7-30 217 Siskiyou Approx. 300 yards up tributary of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1784 Comment
  UC416765  Plectritis macrocera W. T. Mooney April 1903 Siskiyou Yreka Comment
  HSC45201  Pleuricospora fimbriolata J. O. Sawyer, E. Cope 1977-6-21 2978 Siskiyou Near Prescott Peak 1677 Comment
  HSC63297  Pleuricospora fimbriolata M. A. Baker 1979-6-28 1064 Siskiyou Marble Mountain Wilderness. 0.5 km. N and slightly E of Green Granite Lake. 1500 Comment
  JEPS64574  Pleuricospora fimbriolata Noel H. Holmgren, Liew Fah Seong 1969-6-24 3615 Siskiyou Siskiyou Mountains, along Obrian Happy Camp Road Comment
  CAS-BOT-BC261036  Poa Melissa A. Berry 1957-7-7 s.n. Siskiyou China Mt. divide, near Gazelle-Callahan Road 2286 Comment
  RSA184792  Poa Gilbert Muth 1966-7-17 403 Siskiyou Trail to lookout, Marble Mts. 1829 Comment
  UCD80890  Poa Robert E. Preston 2001-6-23 1557 Siskiyou Klamath National Forest, n slope of Rainbow Mtn. 1767 Comment
  UCD90581  Poa bolanderi A. H. Murphy 1955-7-27 55 F Siskiyou Klamath National Forest. Marble Mountains. Pierce's Draw Meadow. 1676 Comment
  CAS-BOT-BC255003  Poa bulbosa Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53402 Siskiyou Forest Mountain Summit, 6 miles SW of Yreka on road to Fort Jones 1249 Comment
  CHSC88101  Poa bulbosa Jenny Marr 1993-7-1 111 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC256021  Poa pratensis John Thomas Howell 1937-7-23 13347 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CDA18410  Poa pratensis G. D. Barbe, T. C. Fuller & J. T. Howell 1980-4-29 2627 Siskiyou Klamath Ranges; 0.25 miles northeast of Oro Fino. 883 Comment
  UCD91980  Poa pratensis H. S. Yates 1936-6-20 5800 Siskiyou Siskiyou Summit. 1371 Comment
  UC149785  Poa pratensis subsp. pratensis H. M. Hall and E. B. Babcock June, 1903 4064 Siskiyou Sisson; Sierra Nevada Mts, Mt Shasta 1066 Comment
  JEPS25572  Poa pringlei Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7197 Siskiyou near head of ski lift above Mt Shasta Ski Bowl Lodge; Mt Shasta 2834 Comment
  UC1265427  Poa pringlei Frederick W. Oettinger and R. F. Thorne 1969-8-5 1218 Siskiyou Crapo View Gap above English Lake (vicinity of English Peak); Salmon Mts, western Siskiyou Co, High Lake Basins, Marble Mt 1828 Comment
  UCD90329  Poa secunda A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3449 Siskiyou 25 miles N of Happy Camp. Comment
  CAS-BOT-BC243237  Poa secunda subsp. secunda Geo. D. Butler 1909-5-22 821 Siskiyou Near Yreka Comment
  HSC34107  Poa secunda subsp. secunda J. O. Sawyer 1969-7-24 1465 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  CAS-BOT-BC243232  Poa secunda subsp. secunda A. A. Heller 1905-6-9 8007 Siskiyou About 1 mile E of Montague Comment
  UC166477  Poa wheeleri Geo. D. Butler 1910-5-10 1318 Siskiyou Goosenest Foothills 1676 Comment
  JEPS84252  Polemonium californicum L. R. Heckard with J. Hickman et al. 1986-7-17 6453 Siskiyou ridge e Kangaroo Peak (s of Lily Pad Lake, ca 5 mi n of town of Seiad Valley) 1900 Comment
  RSA166772  Polemonium californicum H. Dearing, M. Dearing 1939-7-2 3805 Siskiyou Salmon Mt. 1677 Comment
  CHSC71309  Polemonium micranthum Vernon H. Oswald; Lowell Ahart 1998-6-11 9218 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  UC164116  Polemonium micranthum Geo. D. Butler 1909-3-16 551 Siskiyou near Yreka; near Yreka Comment
  CAS-BOT-BC231347  Polemonium pulcherrimum G. J. Muth 1969-8-6 1190 Siskiyou Boulder Peak Comment
  SEINET4335521 Image available Polemonium pulcherrimum Marion Ownbey, Fred G. Meyer 1940-7-4 2186 Siskiyou Ridge above head of Brewer Creek, E side of Mt. Shasta Comment
  SEINET12279655  Polemonium pulcherrimum H. P. Chandler 1901-1 1671 Siskiyou Marble Mountain 2438 Comment
  UCD115149  Polyctenium fremontii Wm. E. Moon 1958-5-29 s.n. Siskiyou State Highway 97, southwest of Hebron summit. 1524 Comment
  SEINET12203957  Polygala cornuta M. Ownbey, Meyer, F. G. 1940-1 2164 Siskiyou 7 mi NW of McCloud Comment
  JEPS24616  Polygala cornuta var. cornuta Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6769 Siskiyou along SP (Shasta Route) railway grade upper Sacramento River Canyon (in the 1 1/2 mi stretch between Shasta Retreat (at northern outskirts of Dunsmuir) to Mossbrae Falls and Shasta Springs) 731 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
  UC705877  Polygala cornuta var. cornuta Marion Ownbey and Fred G. Meyer 1940-7-3 2164 Siskiyou 7 mi nw McCloud Comment
  UC719803  Polygala cornuta var. cornuta Rogers McVaugh 1941-8-4 6232 Siskiyou rocky banks n Shasta Retreat; Sacramento R. Comment
  CAS-BOT-BC414394  Polygonum californicum Louis C. Wheeler 1934-6-21 2747 Siskiyou West Fork Cottonwood Creek, Siskiyou Mts. 1005 Comment
  CDA2789  Polygonum cuspidatum T. C. Fuller 1963-8-26 11152 Siskiyou Dunsmuir Grade, Highway 99 to Mt. Shasta Cuty, 0.5 mile north of the limits of Dunsmuir. 0 Comment
  SEINET3160402  Polygonum davisiae M. S. Baker sn Siskiyou Mt. Shasta; Ash Creek above Warren & Anderson's Mill Comment
  UC618625  Polygonum douglasii subsp. douglasii W. Bridge Cooke 1938-7-29 11422 Siskiyou Wagon Camp Mount Shasta, Wagon Camp Creek (meadow along creek) Comment
  UC375152  Polygonum douglasii subsp. majus Geo. D. Butler 1908-7-19 195 Siskiyou Humbug Creek Comment
  UC1509617  Polygonum douglasii subsp. spergulariiforme L. and P. Ahart 1983-9-13 4411 Siskiyou near Hwy 96 (near the Klamath River, ca 5 mi w of Interstate 5) 1000 Comment
  CAS-BOT-BC418619  Polygonum majus John Thomas Howell 1939-8-4 15035 Siskiyou Between Elk Mt. and Marble River, Marble Mts. Comment
  HSC93007  Polygonum minimum Jennifer Whipple 1977-8-6 2230 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  CAS-BOT-BC418587  Polygonum minimum Alice Eastwood 1912-8-22 1821 Siskiyou Trail from Morgans Springs to Lassen Butte Comment
  HSC32758  Polygonum minimum Frederick W. Oettinger 1968-8-11 471 Siskiyou Marble Mtn. Wilderness Area, NE side of creek bed, Tom Taylor Cabin 2043 Comment
  UC375149  Polygonum phytolaccifolium Geo. D. Butler 1908-8-4 182 Siskiyou Shackleford Creek; head Comment
  CAS-BOT-BC419872  Polygonum polygaloides subsp. confertiflorum A. A. Heller 1925-7-25 13901 Siskiyou Along the Pacific highway near Edgewood. Comment
  HSC60788  Polygonum polygaloides subsp. kelloggii Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley. 1524 Comment
  POM312532  Polygonum sawatchense subsp. oblivium H. L. Mason 1948-7-18 13623 Siskiyou Grass Lake Comment
  CAS-BOT-BC420224  Polygonum sawatchense subsp. sawatchense A. A. Heller 1916-6-20 12403 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UC127333  Polygonum sawatchense subsp. sawatchense H. M. Hall and E. B. Babcock June, 1903 4049 Siskiyou near Sisson; Mount Shasta 1066 Comment
  JEPS50591  Polygonum shastense W. L. Jepson 1894-8-4 14806 Siskiyou Snow Line Mt. Shasta Comment
  JEPS50593  Polygonum shastense John G. Lemmon 1888-9-19 Siskiyou Shasta; side Comment
  HSC17500  Polygonum spergulariiforme Geo. D. Butler 1908-8-29 189 Siskiyou Comment
  CAS-BOT-BC76832  Polypodium glycyrrhiza Lincoln Constance; Reed C. Rollins 1942-5-13 2908 Siskiyou Klamath River, 4 miles east of Seiad. 457 Comment
  HSC18929  Polystichum imbricans J. O. Sawyer 1969-6-11 843 Siskiyou Above C.C.C. road. 1287 Comment
  HSC45877  Polystichum imbricans subsp. curtum J. P. Smith, J. O. Sawyer 1972-9-13 5783 Siskiyou 0.5 mi. W of Cook and Green Pass on road to Lily Pad Lake Comment
  JEPS95341  Polystichum lemmonii Vernon H. Oswald and Lowell Ahart 1994-7-11 6404 Siskiyou W of Dunsmuir (Gumboot Lake Rd (40N37) just off Forest Rd (to Mt Shasta)) 1777 Comment
  UC922425  Polystichum lemmonii Annie M. Alexander and Louise Kellogg 1949-7-29 5892 Siskiyou top of ridge above Sky High Lake; Marble Mts., Sky High Valley 1920 Comment
  CAS-BOT-BC72395  Polystichum lemmonii W. R. Dudley 1899-8-26 s.n. Siskiyou In the Foxtail Pine Woods, Sacramento River Comment
  CAS-BOT-BC72406  Polystichum lonchitis John Thomas Howell 1939-8-3 14991 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC75255  Polystichum lonchitis J. O. Sawyer, M. Mesler 1980-8-13 4049 Siskiyou E of Pacific Crest Trail at Black Marble Mtn. 1921 Comment
  LA2445  Polystichum lonchitis Louis Wheeler; 1934-8-6 3058 Siskiyou Rock Gulch off Jaynes Canyon 1828 Comment
  RSA237509  Polystichum lonchitis Frederick W. Oettinger 1968-9-2 661 Siskiyou Above Upper English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1875 Comment
  RSA693354  Polystichum scopulinum L. C. Wheeler 1934-8-13 3113 Siskiyou East Fork Horse Creek, Siskiyou Mountains 1982 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
  UC618728  Populus tremuloides W. Bridge Cooke 1938-8-23 11577 Siskiyou top of the Shastina Lava Park Mount Shasta (n side Shastina); , , n side Shastina Comment
  SEINET10906094  Porterella carnosula Noel H. Holmgren 1980-7-1 Holmgren 9449 a Siskiyou U.S. Highway 97, 21.4 km (13.3 miles) south-southwest of Macdoel 1524 Comment
  UC1099856  Potamogeton gramineus Calvin McMillan, Malcolm A. Nobs 1949-6-17 801 Siskiyou Grass Lake, Highway 97 Grass Lake Comment
  UCD138308  Potamogeton gramineus Calvin McMillen; Malcolm A. Nobs 1949-6-17 801 Siskiyou Grass Lake, Highway 97. Comment
  UC201703  Potamogeton illinoensis Geo. D. Butler 1916-8-21 1853 Siskiyou Shasta River 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
  HSC100794  Potamogeton pusillus var. tenuissimus Lowell Ahart, John Dittes 2010-7-30 16963 Siskiyou In the Shasta river, ~30 yd. NW of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 (air) mi. SW of Big Springs Lake, 4.6 (air) mi. NW of Dwinnel Dam, and 5.7 (air) mi. SE of Grenada. 717 Comment
  CDA26068  Potentilla anserina D. L. Janssen, F. D. Horn 1978-6-16 Siskiyou Just west of Bray. 0 Comment
  CHSC71497  Potentilla biennis Vernon H. Oswald; Lowell Ahart 1998-7-21 9341 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
  CAS-BOT-BC143182  Potentilla breweri David D. Keck 1938-8-8 4870 Siskiyou At Trinity Co. line: Scott Mountain Divide, between Scott Mtn. and Craggy Peak 1675 Comment
  HSC65286  Potentilla breweri Rich White 1978-7-6 253 Siskiyou Pond above Elk Hole 1524 Comment
  SEINET11916232  Potentilla breweri var. expansa H. P. Chandler 1901-1 1697 Siskiyou Ridges & meadows near Marble Mtn 1524 Comment
  UC1409453  Potentilla drummondii Frederick W. Oettinger 1968-9-7 769 Siskiyou ridge se Tobacco Lake Meadow (High Lake Basins in the vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1889 Comment
  CAS-BOT-BC143261  Potentilla flabellifolia John Thomas Howell 1939-8-10 15269 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  CHSC1570  Potentilla flabellifolia V. Holt 1942-8-6 Siskiyou Caribou Lake, Trinity Alps. 2438 Comment
  HSC96322  Potentilla flabellifolia Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 470 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UC922313  Potentilla flabellifolia Annie M. Alexander and Louise Kellogg 1949-7-28 5875 Siskiyou Sky High Valley , Sky High Valley (Marble Mountains) 1767 Comment
  RSA68938  Potentilla glandulosa subsp. ashlandica A. E. Culbertson 1943-7-17 20 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall, 14 miles s.w. of Mt Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CHSC71498  Potentilla gracilis var. fastigiata Vernon H. Oswald; Lowell Ahart 1998-7-21 9351 Siskiyou Northeast of Weed and south of Macdoel along Old State Highway on the west side of Bray. In meadow along the road. 1417 Comment
  LA208101  Potentilla gracilis var. fastigiata W. B. C.; 1939-7-7 13591 Siskiyou Mount Shasta, Bear Springs 1523 Comment
  RSA211183  Potentilla gracilis var. fastigiata William J. Ferlatte 1966-8-3 260 Siskiyou Mountain Meadow ranch, weedy area around buildings. 1524 Comment
  SEINET13710170  Potentilla gracilis var. fastigiata Lowell William Ahart, Lowell William Ahart 1998-1 9351 Siskiyou NE of Weed and S of Macdoel along Old State Hwy W of Bray (T44N, R1W, sec 20, SE 1/4) 4650 Ft. 1417 Comment
  UC1034646  Potentilla millefolia Milo S. Baker 1955-6-26 13080 Siskiyou Highway 99, 4 mi s Gazelle; s of Gazelle 914 Comment
  CHSC774  Prunella vulgaris var. lanceolata 1936-6-29 Siskiyou Shasta City. 1097 Comment
  RSA68931  Prunella vulgaris var. lanceolata A. E. Culbertson 1943-7-12 27 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000 backwall; 14 miles SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mts.; 2000 ft. above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CAS-BOT-BC158221  Prunus emarginata C. H. M. 1919-9-24 s.n. Siskiyou Ager Comment
  CAS-BOT-BC158244  Prunus emarginata A. M. Vollmer; L. Beane 1951-6-2 68 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway Comment
  UC466756  Prunus emarginata Annie M. Alexander and Louise Kellogg 1911-6-15 144 Siskiyou Jackson Lake 1798 Comment
  RSA453224  Prunus emarginata Bonnie C. Templeton 1957-6-21 s.n. Siskiyou On the road up to Mt. Shasta. Comment
  UC136941 Image available Prunus subcordata J. G. Lemmon and Mrs. Lemmon 1874-1 Siskiyou near Sisson; U. S. Pacific Slope; near Sisson Comment
  CAS-BOT-BC151246  Prunus virginiana var. demissa Carl B. Wolf 1927-8-27 1111 Siskiyou On the Klamath River, Happy Camp Comment
  HSC19191  Prunus virginiana var. demissa J. O. Sawyer 1968-7-23 607 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  HSC76874  Prunus virginiana var. demissa K. T. Stillman 1976-6-26 136 Siskiyou Marble Mtn. Wilderness Area, Kings Castle 2134 Comment
  UC60883  Prunus virginiana var. demissa W. A. Setchell, C. C. Dobie 1902-7-18 Siskiyou Mount Shasta, Sisson Mount Shasta; , Sisson Comment
  UCR93371  Prunus virginiana var. demissa 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
  CAS-BOT-BC357403  Pseudognaphalium microcephalum R. E. Frenkel 1964-10-2 919 Siskiyou On Everitt Memorial Highway, 4.7 miles north of McCloud River RR crossing, near Mount Shasta 1545 Comment
  UC179499  Pseudognaphalium thermale A. A. Heller 1914-8-25 11702 Siskiyou opposite Black Butte (along the railroad embankment near Deetz station) 1158 Comment
  JEPS24016  Pseudognaphalium thermale Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6877 Siskiyou 2 mi w Seiad Valley (in canyon of Portuguese Creek, drainage of Klamath River); Portuguese Creek 396 Comment
  RSA17736  Pseudoroegneria spicata subsp. spicata Elmer I. Applegate 1935-6-10 9461 Siskiyou Indian Well, Lava Bed National Monument Comment
  HSC75249  Pseudostellaria jamesiana J. P. Smith, Steve Selva 1970-7-17 4474 Siskiyou Below Kangaroo Lake. 1890 Comment
  CAS-BOT-BC80172  Pseudotsuga menziesii Doris K. Kildale 1928-7-3 5436 Siskiyou Forks of Salmon, Salmon River Comment
  CAS-BOT-BC460551  Pterospora andromedea H. E. Brown 1897-6-11 418 Siskiyou North side of Mount Shaska 2743 Comment
  RSA449670  Purshia tridentata var. tridentata Bonnie C. Templeton 1964-6-9 10065 Siskiyou Slope of Mt. Shasta Comment
  UC1198696  Purshia tridentata var. tridentata Joseph P. Tracy 1949-9-16 18563 Siskiyou 1 mi e Etna; Scott Valley 883 Comment
  RSA120906  Purshia tridentata var. tridentata Milo S. Baker 1957-6-15 13103 Siskiyou Just south of Weed. Comment
  HSC99616  Pyrola aphylla J. O. Sawyer 1969-7-11 856 Siskiyou Ravine above C.C.C. road. 1280 Comment
  CAS-BOT-BC460864  Pyrola aphylla Ira L. Wiggins 1955-7-21 13442 Siskiyou Rush Creek Trail, 2 mi. above Mt. View Ranch 1097 Comment
  CAS-BOT-BC460869  Pyrola aphylla Alice Eastwood 1923-5-27 11949 Siskiyou Shasta Springs Comment
  UC1408766  Pyrola asarifolia Frederick W. Oettinger 1968-8-7 441 Siskiyou The High Lake Basins in the Vicinity of English Peak Marble Mountain Willderness Area, Tabacco Lake 1889 Comment
  UCD77970  Pyrola minor Robert E. Preston 2001-7-20 1677 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W se 1/4 of ne 1/4 Section 14 1688 Comment
  HSC65567  Pyrola picta Rich White 1977-7-21 131 Siskiyou Slope below outlet of Raspberry Lake 1512 Comment
  UC166593  Pyrola picta Geo. D. Butler 1910-6-17 1574 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC466126  Pyrola picta Elmer I. Applegate 1896-5-29 940 Siskiyou Sisson Comment
  CAS-BOT-BC466138  Pyrola picta Ira L. Wiggins 1955-7-23 13472 Siskiyou Banks of China Creek 1097 Comment
  HSC19198  Pyrola picta J. O. Sawyer 1968-6-25 340 Siskiyou 1646 Comment
  SDSU9900  Pyrola secunda D. F. Howe 1969-8-30 4672 Siskiyou Blake Creek, north fork of Slamon River, about 20 miles southwest of Aetna, Siskiyou Co. 1829 Comment
  HSC70458  Pyrrocoma racemosa var. pinetorum J. P. Smith, J. O. Sawyer 1976-9-5 8971 Siskiyou Hwy. 3, 4 mi. N of Siskyou-Trinity Co. line Comment
  JEPS98388  Pyrrocoma racemosa var. pinetorum Vernon H. Oswald 2000-8-28 9960 Siskiyou Hwy. 3, 2.2 mi N of Scott Mountain Summit 1411 Comment
  CAS-BOT-BC68605  Quercus chrysolepis Dr. A. Kellogg; W. G. W. Harford 1868-9 915 Siskiyou Ukiah Comment
  HSC8314  Quercus chrysolepis C. B. Wolf 1927-8-26 1069 Siskiyou On the Klamath River, 8 mi. above Hamburg Comment
  UCD82870  Quercus chrysolepis Rodney Gale Myatt 1971-9-22 1192 -9 Siskiyou Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 335 Comment
  SEINET9005431  Quercus chrysolepis G. D. Butler 1910-6-7 1530 Siskiyou Greenhorn mountain Comment
  CAS-BOT-BC94663  Quercus garryana Alice Eastwood 1921-7-22 10709 Siskiyou near Dunsmuir Comment
  UC249561  Quercus garryana Joseph P. Tracy 1922-9-3 6113 Siskiyou Somes Bar Northern Coast Ranges 243 Comment
  UCD46171  Quercus garryana var. breweri P. C. Everett; E. K. Balls 1954-10-13 20288 Siskiyou Indian Creek road to Obrien, summit of pass, 21 mi. n.w. from Hwy 96 at Happy Camp, Siskiyou County. 1554 Comment
  UCD46172  Quercus garryana var. breweri J. M. Tucker 1948-8-3 1780 B Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte-Siskiyou county line, California. 1554 Comment
  UCR37560  Quercus garryana var. garryana K. B. Barrows, C. G. Phillips, L. Cole, S. A. Haultain 1984-5-27 108 Siskiyou Scott River Road, 10.6 mi. north of Indian Scotty Campground 610 Comment
  CAS-BOT-BC104348  Quercus sadleriana John Thomas Howell; Gordon H. True 1972-6-8 48854 Siskiyou S of summit on road from Takilma to Happy Camp Comment
  HSC19218  Quercus sadleriana J. O. Sawyer 1968-9-9 659 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  RSA237357  Quercus sadleriana Frederick W. Oettinger 1967-8-26 335 Siskiyou 1/2 mile below Abbotts Upper Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  RSA237866  Quercus sadleriana Frederick W. Oettinger 1969-9-4 1668 Siskiyou Near gap between Tobacco Lake and Toms Lake Basin (in Tobacco Lake Basin), Salmon Mountians, the High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1829 Comment
  UCD47222  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 D Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte-Siskiyou county line, California. 1554 Comment
  UCD47225  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 B Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte- Siskiyou county line, California. Comment
  UCSB1234  Quercus sadleriana Mason, Herbert 1950-7-16 Siskiyou Road from Happy Camp, California, to Waldo, Oregon Comment
  CAS-BOT-BC104628  Quercus vacciniifolia John Thomas Howell 1937-6-26 13522 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC69427  Quercus vacciniifolia John Palmer 1980-7-23 564 Siskiyou Past Elbow Springs at end of USFS Rd. 15N19 1220 Comment
  UC455271  Quercus vacciniifolia I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 2133 Comment
  UCD47466  Quercus vacciniifolia Beecher Crampton 1956-8-21 3847 Siskiyou Canyon of the Sacramento River just above the junction of the North Fork with Middle and South Forks, southwest of Mt. Shasta City, Siskiyou County. 1066 Comment
  UCD77973  Raillardella argentea Robert E. Preston 2001-7-21 1714 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W ne 1/4 Section 22 2072 Comment
  JEPS90107  Raillardella pringlei Dean W. Taylor 1988-7-9 9939 Siskiyou Gumboot Creek North Coast Ranges (headwaters of South Fork Sacramento River, (Seven Lakes Basin 7 1/2' quadrangle) 1905 Comment
  RSA638899  Ranunculus J. M. Tucker 1963-7-8 3733 Siskiyou Marble Mountain Wilderness Area, trail to Marble Valley, ca. 2 mi. south of Paradise Lake. 1982 Comment
  SEINET7042790  Ranunculus californicus A. G. Vestal 1955-5-17 s.n. Siskiyou Meadow at Oxbow west of Scott River. 9.5 miles south of Fort Jones. Etna quadrangle UTM Zone 10 508671mE, 4590390mN. Comment
  JEPS74462  Ranunculus eschscholtzii W. J. Ferlatte 1967-7-26 758 Siskiyou Sawtooth Ridge Trinity Alps, Caribou Basin 2042 Comment
  SEINET5338679  Ranunculus flammula G. Butler 1910-7-12 1741 Siskiyou Shackleford Creek. 1219 Comment
  UC61061  Ranunculus occidentalis W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Mount Shasta Comment
  RSA604737  Ranunculus occidentalis var. eisenii Louis C. Wheeler 1935-5-26 3535 Siskiyou Siskiyou Mts. 854 Comment
  RSA256708  Ranunculus orthorhynchus J. P. Smith, Thomas W. Nelson 1974-5-25 7471 Siskiyou Along road 8, 4.7 mi. west of its junction with State Route 3. 1159 Comment
  POM268891  Ranunculus uncinatus var. parviflorus Louis C. Wheeler 1934-6-7 2656 Siskiyou North Hungry Creek. 1220 Comment
  HSC100189  Rhamnus ilicifolia J. P. Smith, & J. O. Sawyer 2011-9-3 13409 Siskiyou Along Old Shasta River Road. 727 Comment
  RSA0005516  Rhamnus obtusissima E. B. Copeland 1903-8-15 3833 Siskiyou Sisson 1098 Comment
  POM134115  Rhamnus purshiana John H. Thomas 1954-7-22 4452 Siskiyou Salmon-Trinity Mts, 6 miles SE of Cecilville betw Rush and Big Bend Creek, 0.25-0.5 miles N of S Fork of Salmon River. 945 Comment
  CAS-BOT-BC53738  Rhododendron columbianum Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou A ledum swamp just below Mumbo Lake, Trinity Mts. 1828 Comment
  CDA32771  Rhododendron occidentale var. paludosum G. F. Hrusa 1992-5-3 9555 Siskiyou Siskiyou Mountains; South side of Scott Mtn. just below summit area. 1627 Comment
  CAS-BOT-BC200669  Rhus aromatica H. E. Brown 1897-7-15 595 Siskiyou On the South side of Mt. Shasta 3048 Comment
  UC1174944  Rhus trilobata P. C. Everett and E. K. Balls 1959-10-24 23945 Siskiyou 7 mi sw from Red Bank F. S. Camp ( on road from Sawyers Bar to Somesbar) Comment
  CAS-BOT-BC438015  Ribes Laura M. Lathrop 1903-7-16 s.n. Siskiyou Shasta Retreat Comment
  JEPS49301  Ribes aureum Annie M. Alexander and Louise Kellogg 1911-6-4 108 Siskiyou Mayten Comment
  CAS-BOT-BC92541  Ribes binominatum Roxana S. Ferris; Laura Lorraine 1948-6-12 11769 Siskiyou About 6 miles from Etna on forks of Salmon Road. 1706 Comment
  CAS-BOT-BC108776  Ribes cereum Elmer I. Applegate 1935-8-4 10026 Siskiyou Upper Ice Cave, Lava Beds National Monument. Comment
  CAS-BOT-BC108782  Ribes cereum A. A. Heller 1938-7-12 15252 Siskiyou Eight miles north of Weed along U.S. Highway #97. Comment
  CAS-BOT-BC6177  Ribes glanduliferum Amos Arthur Heller 1905-6-9 8005 Siskiyou Yreka Comment
  HSC64667  Ribes inerme var. klamathense J. O. Sawyer 1977-7-7 3041 Siskiyou N of Sugar Creek on Hwy. 3, Scott Valley 976 Comment
  JEPS49410  Ribes inerme var. klamathense Geo. D. Butler 1910-4-9 1160 Siskiyou Yreka Comment
  HSC19373  Ribes lacustre J. O. Sawyer 1968-6-25 292 Siskiyou NE of N Horse Range Lake 2012 Comment
  HSC44979  Ribes lobbii J. O. Sawyer 1978-6-21 3282 Siskiyou Marble Mtn. Wilderness Area, along trail N of Clear Lake 1951 Comment
  HSC61940  Ribes lobbii Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  JEPS49354  Ribes lobbii W. L. Jepson 1902-7-22 2093 Siskiyou trail from Salmon Forks; Salmon Summit 1676 Comment
  UC165265  Ribes lobbii Geo. D. Butler 1910-5-30 1442 Siskiyou Humbug Creek Comment
  CAS-BOT-BC212488  Ribes marshallii Geo. D. Butler 1910-7-8 1682 Siskiyou Shackleford Creek 1219 Comment
  HSC40049  Ribes marshallii J. O. Sawyer 1970-7-4 2323 Siskiyou At Cedar Flat Cabin 1402 Comment
  CHSC35296  Ribes nevadense M. S. Taylor 1980-6-23 2946 Siskiyou Bog around Cedar Lake, ca. 11 mi sw of Mt Shasta City. 1737 Comment
  UC375353  Ribes roezlii Geo. D. Butler 1908-7-19 269 Siskiyou Humbug Mountain Comment
  UC70542  Ribes roezlii T. H. Gilbert June 1899 Siskiyou Scott River Valley Comment
  RSA0018040  Ribes roezlii H. K. Wagnon, G. D. Barbe 1957-6-16 13127 -MSB Siskiyou Scott Mountains up to 1300. Comment
  CAS-BOT-BC199988  Ribes roezlii var. cruentum John Thomas Howell 1937-7-29 13635 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  RSA0024598  Ribes roezlii var. cruentum G. D. Barbe 1955-6-29 44 Siskiyou 2.1 miles east of Callahan on Trinity Center Road, about 600 feet beyond the bridge. 976 Comment
  RSA0024603  Ribes roezlii var. cruentum Christopher Davidson 1975-6-5 2685 Siskiyou 0.8 miles N of Scott Mountain Summit on Highway 3. 1585 Comment
  CAS-BOT-BC173907  Ribes velutinum Elmer I. Applegate 1927-4-24 5001 Siskiyou Modoc Lava Beds, Battle Ground Comment
  CAS-BOT-BC173911  Ribes velutinum Alice Eastwood; John Thomas Howell 1940-6-14 8263 Siskiyou Lava Beds Nat. Mon. near Indian Wells Comment
  CHSC36158  Ribes velutinum K. Bridwell 1978-4-14 86 Siskiyou Along Klamath River, ca. 4 mi s of Hornbrook. 670 Comment
  CAS-BOT-BC168791  Ribes viscosissimum Wm. Bridge Cooke 1938-6-17 11005 Siskiyou Sisson Southern Trail, Mount Shasta 1676 Comment
  HSC23473  Ribes viscosissimum J. O. Sawyer 1968-6-18 220 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  HSC61943  Ribes viscosissimum Ruby Van Deventer 1939-7-18 Siskiyou Poker Flat 1585 Comment
  JEPS49200  Ribes viscosissimum Annie M. Alexander and Louise Kellogg 1911-6-15 148 Siskiyou Jackson Lake Comment
  RSA0020921  Ribes viscosissimum Gilbert Muth 1966-7-17 380 Siskiyou Along trail to Marble Mountain Lookout, Marble Mountains. 1814 Comment
  HSC29245  Romanzoffia sitchensis Frederick W. Oettinger 1968-9-1 650 Siskiyou Marble Mtn. Wilderness Area, S of Abbott's Lake 1799 Comment
  UC1871381  Rosa Barbara Ertter 2006-7-30 18737 a Siskiyou Butte Valley 4 air mi due W of Macdoel, Meiss Lake Road at S entrance to Butte Valley Wildlife Area. 1298 Comment
  CAS-BOT-BC146755  Rosa gymnocarpa Annie M. Alexander; Louise Kellogg 1948-9-7 5593 Siskiyou On road between first and second forks to Lookouts; Black Bear Summit Comment
  JEPS33851  Rosa gymnocarpa Gilbert Muth 1966-7-29 466 Siskiyou by waterfall Marble Mt. Wilderness Area, Marble Valley 1828 Comment
  RSA237818  Rosa gymnocarpa Frederick W. Oettinger 1968-8-17 559 Siskiyou Pine Lake Meadows. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1875 Comment
  POM365833  Rosa gymnocarpa M. B. Dunkle 1944-6-25 9028 Siskiyou Siskiyou National Forest. 1677 Comment
  RSA96938  Rosa gymnocarpa Percy C. Everett, E. K. Balls 1954-10-11 20267 Siskiyou Castle Lake Forest Service Camp. SW of town of Mt. Shasta. 1555 Comment
  CAS-BOT-BC147054  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou Near Fish Hatchery, Mt. Shasta City (Sisson) 1066 Comment
  CAS-BOT-BC147059  Rosa pisocarpa Geo. D. Butler 1910-5-16 1352 Siskiyou Fence rows Yreka Comment
  UC768887  Rosa pisocarpa Doris K. Kildale 1929-7-20 8715 Siskiyou Raspberry Lake upper Indian Creek 1828 Comment
  RSA96941  Rosa pisocarpa subsp. pisocarpa Percy C. Everett, E. K. Balls 1954-10-10 20265 Siskiyou n. end of Castle Lake SW from town of Mt. Shasta. 1585 Comment
  CAS-BOT-BC147315  Rubus parviflorus A. A. Heller 1905-6-1 7949 Siskiyou On the Sacramento opposite Upper Soda Spring and Shasta Retreat Comment
  CAS-BOT-BC157165  Rubus ursinus Alice Eastwood 1921-7-30 11001 Siskiyou Soda Creek Comment
  HSC27679  Rubus ursinus Carl W. Mize 1972-6-8 37 Siskiyou By Wooley Creek in rocks and sand 335 Comment
  UC618725  Rubus ursinus W. Bridge Cooke 1938-6-17 11048 Siskiyou Sisson Southern Trail , Sisson Southern Trail (Mount Shasta) Comment
  JEPS74413  Rumex acetosella W. B. and V. G. Cooke 1974-8-20 49244 Siskiyou Everett Memorial Highway Mt. Shasta 1371 Comment
  UC618783  Sagina saginoides W. Bridge Cooke 1938-8-18 11474 Siskiyou Mt. Shasta, Horse Camp Springs Comment
  UCD110840  Salix eastwoodiae John M. Tucker 1963-7-7 3730 -A Siskiyou Paradise Lake Public Camp, at base of Kings Castle on the east side, Marble Mountain Wilderness Area. 1981 Comment
  POM107070  Salix exigua Geo. D. Butler 1909-9-20 1082 Siskiyou Yreka Creek. Comment
  RSA105505  Salix exigua G. D. Barbe 1955-6-28 8 Siskiyou 0.8 mile N of Callahan near Hjertagers' Mill. 976 Comment
  RSA105506  Salix exigua G. D. Barbe 1955-6-28 7 Siskiyou 0.8 mile N of Callahan near Hjertagers' Mill. 976 Comment
  HSC43051  Salix exigua var. hindsiana Ken Stillman 1976-8-24 442 Siskiyou Along Klamath River at Williams Point. 366 Comment
  CAS-BOT-BC107786  Salix hindsiana Doris K. Kildale; J. W. Gillespie 1929-6-25 8362 Siskiyou Klamath River, 6 miles north of Hornbrook 609 Comment
  RSA0038339  Salix hindsiana H. P. Bracelin 1931-6-22 477 Siskiyou Pit River at Gibson flag station, 125 km. north of Red Bluff. 450 Comment
  HSC69200  Salix jepsonii Maralyn A. Renner 1980-7-24 2079 Siskiyou Lily Pad Lake 1768 Comment
  HSC86429  Salix jepsonii D. K. Imper 1987-6-6 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  CAS-BOT-BC107656  Salix jepsonii W. R. Dudley 1907-8-23 s.n. Siskiyou Foxtail Ridge, Salmon Mountains Comment
  JEPS38487  Salix laevigata Geo. D. Butler 1908-7-7 151 Siskiyou Butler Ranch near Yreka Comment
  CAS-BOT-BC132732  Salix lasiandra L. E. Smith 1913-3-1 s.n. Siskiyou Sisson Comment
  HSC69545  Salix lasiandra Maralyn A. Renner 1980-8-6 2237 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  RSA0034683  Salix lasiandra H. P. Bracelin 1931-6-19 423 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City. 1350 Comment
  SEINET12003261  Salix lasiandra H. P. Bracelin 1931-1 468 Siskiyou n side of Mt. Eddy, 21 km NW of Shasta City, below Dobkin's Lake 1770 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-BC107079  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 832 Siskiyou East side of Mt. Eddy; Wagon Creek above Metcalf ranch house; 8-9 miles N.W. of Mt. Shasta City 1203 Comment
  POM107149  Salix lasiolepis Geo. D. Butler 1909-3-14 1080 Siskiyou Yreka Creek. 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
  UC576383  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 832 Siskiyou 8-9 mi. n.w.of Mt. Shasta City (Wagon Creek above Metcalf ranch house); e. side Mt. Eddy 1203 Comment
  CAS-BOT-BC128301  Salix lasiolepis var. lasiolepis Doris K. Kildale 1929-4-27 7499 Siskiyou Cecilville, upper South Fork of Salmon River Comment
  SBBG57902  Salix lemmonii Mrs. H. P. Bracelin 1931-6-21 467 Siskiyou ca. 21 km NW of Shasta City, 180 m below Dobkin's Lake, N side of Mount Eddy 1770 Comment
  SBBG57839  Salix lucida subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 411 Siskiyou NE side of Mt Eddy, ca. 16 km NW of Shasta City, above Metcalf ranch house 1425 Comment
  CAS-BOT-BC125694  Salix melanopsis Alice Eastwood 1923-5-29 11988 Siskiyou Shasta Springs Comment
  UC449844  Salix melanopsis L. S. Smith 1931-6-1 14 Siskiyou near Mt. Shasta Mt. Shasta 1066 Comment
  HSC19409  Salix scouleriana J. O. Sawyer 1968-7-10 497 Siskiyou Lower slopes grading to terrace of a temporary stream. 1768 Comment
  HSC22232  Salix scouleriana J. O. Sawyer 1968-9-13 708 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  UCR142839  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 446 Siskiyou East side of Mount Eddy, about 17 km. northwest of Shasta City, Wagon Creek Canyon c. 1 km up from Metcalf ranch house 1170 Comment
  HSC27031  Salsola tragus J. P. Smith, J. O. Sawyer 1972-9-14 5800 Siskiyou Miner's Creek Rd. just S of French Creek Rd. between Callahan and Etna. 915 Comment
  SBBG30559  Salvia dorrii var. dorrii D. Myrick 1968-6-22 1986 Siskiyou Lava Beds Nat Monument 1371 Comment
  CAS-BOT-BC220810  Salvia dorrii var. incana A. A. Heller 1922-6-22 13667 Siskiyou Along the Pacific highway on the Klamath River Comment
  SEINET10814436  Sambucus caerulea Andrew Townesmith 2012-9-4 Townesmith 2402 Siskiyou Along California route 89, 4.0 miles east of intersection with Interstate 5. 1318 Comment
  CAS-BOT-BC238878  Sambucus nigra subsp. caerulea John Thomas Howell 1937-7-24 13391 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC238883  Sambucus nigra subsp. caerulea Gilbert Muth 1965-8-2 s.n. Siskiyou 1/2 between Gate & Lower Sky High Lakes Comment
  CAS-BOT-BC238891  Sambucus nigra subsp. caerulea Wm. Bridge Cooke 1938-6-24 11087 Siskiyou Mount Shasta. MacBride Springs Comment
  HSC29281  Sambucus nigra subsp. caerulea Frederick W. Oettinger 1968-8-23 618 Siskiyou Marble Mtn. Wilderness Area, W of Upper English Lake. 1768 Comment
  UC618780  Sambucus racemosa var. microbotrys W. Bridge Cooke 1938-9-8 11674 Siskiyou Red Butte Mount Shasta (s side) Comment
  HSC22467  Sambucus racemosa var. racemosa J. O. Sawyer 1969-7-18 1369 Siskiyou Above S Russian Creek. 2012 Comment
  CDA26417  Sanguisorba annua G. D. Barbe, T. C. Fuller 1972-6-14 946 Siskiyou North of Weed, ca. 1 mile north of US 97 on Hoy Road. 0 Comment
  POM298617  Sanicula bipinnatifida Lincoln Constance, R. Shan 1946-5-31 3060 Siskiyou E bank of Sacramento River at Dunsmuir. 701 Comment
  HSC61954  Sanicula graveolens Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1555 Comment
  UC642521  Sanicula tuberosa W. Bridge Cooke 1939-6-23 13524 Siskiyou between Bear Springs and Wagon Camp (Mount Shasta); Mount Shasta 1676 Comment
  JEPS74411  Saponaria officinalis W. B. and V. G. Cooke 1974-8-20 49245 Siskiyou Everett Memorial Highway Mt. Shasta (Mt. Shasta) Comment
  UC1045269  Saponaria officinalis W. Bridge Cooke 1940-7-12 15326 Siskiyou along the Castle Lake Road at the S.P. crossing in Mt. Shasta City; along Castle Lake Road, Mt. Shasta City Comment
  HSC60781  Saxifraga howellii V. Stansell 1968-7-8 Siskiyou Bell Echo (Bell Echo Camp) in Youngs Valley. Comment
  JEPS25649  Saxifraga odontoloma Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7289 Siskiyou beside rill at Poker Flat 1536 Comment
  RSA211111  Saxifraga odontoloma William J. Ferlatte 1967-8-23 1105 Siskiyou Kidd Creek Trail. Trinity Alps. 1951 Comment
  HSC29407  Saxifragopsis fragarioides Frederick W. Oettinger 1968-8-5 403 Siskiyou Marble Mtn. Wilderness Area, between English Peak and Diamond Lake 2073 Comment
  JEPS84270  Saxifragopsis fragarioides L. R. Heckard with J. Hickman et al. 1986-7-17 6508 Siskiyou e of Condrey Mt. (slopes of Alex Hole); Alex Hole 1930 Comment
  POM258940  Saxifragopsis fragarioides C. L. Hitchcock, J. S. Martin 1939-7-7 5285 -a Siskiyou Sanger Peak. 1780 Comment
  POM259289  Saxifragopsis fragarioides John T. Howell 1939-8-3 14990 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  HSC74816  Schoenoplectus tabernaemontani J. P. Smith 1978-7-1 9996 Siskiyou Klamath National Forest, O'Neill Creek Campground, Klamath River 488 Comment
  JEPS63801  Scirpus acutus var. occidentalis B. C. Goldsmith 1916-8-21 16 Siskiyou Gazelle Shasta Valley, Gazelle Comment
  CAS-BOT-BC35551  Scirpus congdonii John Thomas Howell 1939-8-7 15130 Siskiyou Sky High Valley, Marble Mtns. 1828 Comment
  HSC71109  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4501 Siskiyou Along W side of Hwy. 3, just N of Scott Mtn. Summit 1616 Comment
  HSC40237  Scleranthus annuus J. P. Smith 1976-5-5 8670 Siskiyou Road from Etna to Sawyer's Bar. 732 Comment
  CHSC35674  Sclerochloa dura R. E. Preston 1982-5-1 276 Siskiyou Camp Creek Recreation Area, Irongate Reservoir, ca. 20 mi ne of Yreka. 701 Comment
  HSC63623  Scutellaria antirrhinoides J. P. Smith, Steve Selva 1970-7-27 4509 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  HSC92411  Scutellaria antirrhinoides Jennifer Whipple 1976-7-13 1455 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River. 2256 Comment
  SBBG25863  Scutellaria antirrhinoides D. Myrick 1966-8-9 1507 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  POM69573  Scutellaria antirrhinoides Geo. D. Butler 1910-5-30 1430 Siskiyou Humbug Creek. Comment
  RSA238531  Scutellaria antirrhinoides Frederick W. Oettinger 1969-8-1 1128 Siskiyou Above wiregrass meadow near English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  SD98954  Scutellaria antirrhinoides Darley F. Howe 1977-7-1 Siskiyou Scott Mountain Creek, Scott Mountains. 1219 Comment
  UC1114766  Scutellaria nana W. Bridge Cooke 1956-7-16 30304 Siskiyou above Hotlum Station (along old logging road, n side of Mount Shasta); Mount Shasta 1524 Comment
  RSA445343  Scutellaria siphocampyloides M. B. Dunkle 1944-7-18 9120 Siskiyou Siskiyou Natl. Forest, Coastal Northern California. Comment
  HSC23663  Sedum lanceolatum J. O. Sawyer 1969-7-2 1003 Siskiyou E of Twin Lakes 2195 Comment
  RSA0076355  Sedum lanceolatum L. C. Wheeler 1934-8-9 3075 Siskiyou Head of Jaynes Canyon. Siskiyou Mts. 1921 Comment
  HSC27599  Sedum laxum subsp. heckneri Carl W. Mize 1972-6-10 55 Siskiyou S slope 366 Comment
  CAS-BOT-BC61475  Sedum laxum subsp. laxum Alice Eastwood 1912-9-11 2142 Siskiyou Trail to Black Butte from Waldo Comment
  UC455356  Sedum obtusatum subsp. boreale I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat (Mt. Bradley); , near Shasta Retreat 1828 Comment
  HSC59371  Sedum obtusatum subsp. retusum Thomas W. Nelson, J. P. Smith 1979-6-15 4809 Siskiyou Along road to Carmen Lake, 1 mi. from junction with State Rte. 3 1585 Comment
  SEINET8923801  Sedum oregonense P. Zika 2011-7-19 25647 Siskiyou Klamath Range (KR), Siskiyou Mountains, near Pacific Crest Trail, 1 air mile WNW of Copper Butte. 1610 Comment
  CAS-BOT-BC64099  Sedum radiatum subsp. depauperatum Ira L. Wiggins 1955-7-22 13458 Siskiyou Ridge W of China Creek, S side of S Fork of Salmon River. 944 Comment
  CAS-BOT-BC59093  Sedum spathulifolium A. A. Heller 1905-6-1 7932 Siskiyou Between Dunsmuir and Upper Soda Spring. Comment
  HSC43058  Sedum spathulifolium var. spathulifolium Ken Stillman 1976-8-24 448 Siskiyou E and N slopes of Williams Point 366 Comment
  HSC69297  Sedum stenopetalum Maralyn A. Renner 1980-7-23 1816 Siskiyou Klamath National Forest, ridge 1/2 mi. E of Cook and Green Pass 1555 Comment
  UCSB25866  Sedum stenopetalum Keefe, Joseph 1967-7-11 Siskiyou On trail, 0.5 mile east of Cook and Green Pass, north of Seida Valley 1676 Comment
  LA209668  Selaginella scopulorum Lawrence L. Kiefer; 1963-8-9 728 Siskiyou Castle Lake (SW of Mt Shasta), rocks at the S end of lake 2133 Comment
  CAS-BOT-BC69762  Selaginella wallacei Louis C. Wheeler 1934-8-15 3158 Siskiyou East Fork Horse Creek, Siskiyou Mtns., Mt. Diablo Mer. 1524 Comment
  RSA0013321  Senecio aronicoides A. E. Culbertson 94 Siskiyou near Forest Service Camp Grd., about a mile downstream from Castle Lake on road to town of Shasta; on north slope of a 6600' eastern spur of Trinity Mts. and 1500' above Sacramento R., within 9 air miles of its headwaters to the west., Mt. Shasta 13 miles to n.e. 1524 Comment
  CAS-BOT-BC363645  Senecio fremontii var. occidentalis Alice Eastwood 1912-8-30 2021 Siskiyou Mount Eddy Comment
  UCD135530  Senecio hydrophilus Thomas C. Horn 1956-8-6 s.n. Siskiyou west side of Lower Klamath Lake. Comment
  CAS-BOT-BC363945  Senecio integerrimus var. exaltatus Alice Eastwood 1912-7-19 1236 Siskiyou Mount Shasta Comment
  UC34195  Senecio integerrimus var. major Harley P. Chandler June 1901 1606 Siskiyou near Marble Mountain; North Coast Ranges 1981 Comment
  SEINET10809464 Image available Senecio integerrimus var. major Harley P. Chandler Chandler 1606 Siskiyou Ridges and meadows near Marble mountain. 1981 Comment
  CAS-BOT-BC364428  Senecio triangularis John Thomas Howell 1939-8-7 15135 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  HSC19257  Senecio triangularis J. O. Sawyer 1968-7-9 403 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  UC1483546  Senecio triangularis Maralyn A. Renner 1980-8-21 2569 Siskiyou Kidd Creek Coffee Creek Quad., , Kidd Creek (Klamath National Forest) 2042 Comment
  UCR37822  Senecio triangularis K. T. Stillman 1976-7-30 311 Siskiyou Marble Mtn Wilderness Area, trail from Big Rock Camp to Jumpoff 1982 Comment
  CDA36497  Sidalcea oregana J. R. Grisham 1961-6-14 Siskiyou Yreka 0 Comment
  UC922291  Sidalcea oregana subsp. oregana Annie M. Alexander and Louise Kellogg 1949-7-23 5852 Siskiyou Sky High Valley , Paradise Lake, Sky High Valley (Marble Mountains) 1920 Comment
  JEPS67290  Sidalcea oregana subsp. spicata W. L. Jepson 1940-7-3 20110 Siskiyou 5 mi se Bartle (Big Bear Flat); se of Bartle, Big Bear Flat 1219 Comment
  JEPS75882  Sidalcea oregana subsp. spicata W. J. Ferlatte 1966-8-2 227 Siskiyou S Fork Salmon R , S Fork Salmon R (Trinity Alps) 1524 Comment
  UC624821  Sidalcea setosa David D. Keck 1938-8-6 4815 Siskiyou 4 mi s Oregon line (Poker Flat, on road from Waldo to Happy Camp, North slope, summit of Siskiyou Mts., at Del Norte Co. line); summit of Siskiyou Mts., North slope 1554 Comment
  UC705630  Silene campanulata Marion Ownbey, Fred G. Meyer 1940-7-6 2199 Siskiyou summit of Cayenne Ridge Marble Mountain, summit of Cayenne Ridge Comment
  JEPS51012  Silene campanulata subsp. glandulosa T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  JEPS84222  Silene campanulata subsp. glandulosa L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6365 Siskiyou ca 7 mi nne Seiad Valley (ca 1/2 mi e of Red Butte summit, w of Cook and Green Pass); nne of Seiad Valley, w of Cook and Green Pass 1900 Comment
  UCD98558  Silene campanulata subsp. glandulosa Joseph M. DiTomaso 1975-7-27 302 Siskiyou Yellow Rose Mine, Trinity Alps. 2011 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
  RSA120891  Silene campanulata subsp. greenei Milo S. Baker 1957-6-16 13157 Siskiyou Trip to Scott Mt. after turn off near Callahan. Comment
  CAS-BOT-BC387059  Silene douglasii W. B. Cooke; V. G. Cooke 1965-7-12 35180 Siskiyou Bolam road, Mt Shasta 1524 Comment
  HSC92348  Silene douglasii var. douglasii Jennifer Whipple 1976-7-24 1545 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2226 Comment
  HSC68330  Silene grayi Maralyn A. Renner 1980-6-26 1241 Siskiyou SE edge of Flint Valley. 1390 Comment
  JEPS40851  Silene grayi Paul C. Hutchison 1962-8-2 940 Siskiyou between Panther Meadow and top of ski lift Mt. Shasta; , between Panther Meadow and top of ski lift 2621 Comment
  UCD98589  Silene grayi Mary Ann Showers 1980-8-28 2059 Siskiyou to the north of Red Butte on the lower slopes of Mt. Shasta, Shasta Trinity National Forest. 2316 Comment
  UC1185943  Silene lemmonii L. E. Detling 1950-6-9 6601 Siskiyou Hwy 99 Black Butte Summit (Hwy 99) (Black Butte Summit) 1188 Comment
  RSA610007  Silene parryi L. C. Wheeler 1935-6-27 3602 Siskiyou Head of Etna Creek, Marble Mountains. 1799 Comment
  HSC27980  Silene vulgaris Gary S. Lester 1973-7-16 51 Siskiyou Above Wooley Creek trail at Canyon Creek crossing 488 Comment
  RSA275295  Silene vulgaris J. O. Sawyer, E. Cope 1977-6-18 2902 Siskiyou Rock along clear Creek Trail below Ten miles Creek 457 Comment
  SEINET11572877  Sisymbrium altissimum E. K. Balls 1950-5-17 14723 Siskiyou Lava Beds National Monument, New Lava Flow, along road from Schochin Butte to Captain Jacks Stronghold. 1463 Comment
  POM109017  Sisyrinchium bellum Geo D. Butler 1910-6-6 1556 Siskiyou Quartz Valley Comment
  POM109018  Sisyrinchium bellum Geo D. Butler 1909-6-22 885 Siskiyou Goose nest meadows 1524 Comment
  RSA96931  Smilax californica Percy C. Everett, E. K. Balls 1954-10-12 20273 Siskiyou Along Beaver Creek, N of Walker, 4.8 mi S from Beaver Creek Forest Service. 335 Comment
  HSC30413  Smilax jamesii Frederick W. Oettinger 1969-8-1 1138 Siskiyou Marble Mountain Wilderness Area, near stream below English Lake. 1814 Comment
  NY821112  Solanum parishii L. Constance 1951-6-16 3396 Siskiyou North slope of Little Grayback, Takilma-Happy Camp road 1463 Comment
  UCR47901  Solidago canadensis 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
  HSC76968  Solidago elongata K. T. Stillman 1976-9-9 487 Siskiyou Marble Mtn. Wilderness Area; trail from jump off to Paradise Lake 1951 Comment
  OBI55484  Solidago velutina subsp. californica David J. Keil, Kathleen Keil 1992-7-21 23522 Siskiyou Klamath NF SE of Callahan. Forest Rd 40N08, 0.8 mi NW of Scott Mtn summit Comment
  RSA237828  Sorbus californica Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1276 Siskiyou SE end of English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1799 Comment
  CAS-BOT-BC157319  Sorbus californica W. R. Dudley 1901-8-23 s.n. Siskiyou 1st ravine north of Amphitheatre below Caribou Glacier Comment
  CAS-BOT-BC158924  Sorbus scopulina D. M. Traugh 1933-8-6 5 Siskiyou Klamath National Forest 1783 Comment
  CAS-BOT-BC158929  Sorbus scopulina Gilbert Muth 1966-7-8 363 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CHSC27345  Sorbus scopulina T. B. Devine 1976-9-4 359 Siskiyou Castle Lake. Comment
  HSC45150  Sorbus scopulina J. O. Sawyer, E. Cope 1977-6-19 2957 Siskiyou Along trail to Devil's Punchbowl 1372 Comment
  RSA749131  Sorbus scopulina James R. Shevock, David Toren 2000-9-1 20101 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
  UC44993  Sorbus scopulina var. cascadensis W. L. Jepson July 1894 13850 Siskiyou Sisson 1082 Comment
  HSC29470  Sorbus sitchensis var. sitchensis Frederick W. Oettinger 1968-9-8 789 Siskiyou Marble Mtn. Wilderness Area, outlet of English Lake 1799 Comment
  HSC29288  Sparganium angustifolium Frederick W. Oettinger 1969-8-22 1507 Siskiyou Marble Mtn. Wilderness Area, NW shore line of Horse Range Lake 1829 Comment
  RSA238580  Sparganium angustifolium Frederick W. Oettinger 1968-8-13 500 Siskiyou South inlet area of Hancock Lake, the high lake basins in the vicinity of English Peak Marble Mountain Wilderness Area; Salmon Mountains. 1936 Comment
  SEINET3837389  Sparganium angustifolium Unknown 1939-8-20 1464 Siskiyou Northwest end of Talor Lake, 12 miles southwest of Etna, Salmon Mountains, 2027 Comment
  RSA0097339  Spergularia rubra C. L. Hitchcock, J. S. Martin 1939-7-9 5334 Siskiyou Paradise Lake, near Kings Castle. 1768 Comment
  RSA0097342  Spergularia rubra Frederick W. Oettinger 1968-8-23 621 Siskiyou Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Upper English Lake. 1768 Comment
  UC164074  Spiraea densiflora Geo. D. Butler 1910-7-9 1710 Siskiyou Wooley Creek 1676 Comment
  UC70411  Spiraea densiflora Milo S. Baker 1899-7-31 Siskiyou Ash Creek Mt. Shasta (above Warren and Anderson's Mill, e slope of Mt. Shasta) Comment
  RSA68945  Spiraea densiflora var. splendens A. E. Culbertson 1943-7-8 13 Siskiyou E shore of Castle Lake, 5434'. 14 miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mtns. 2000' above Sacramento River. Within 10 air miles of its headwaters to the W. Comment
  HSC68  Spiraea douglasii William J. Ferlatte 1966-8-18 422 Siskiyou Willow Creek Trail. Comment
  RSA237598  Spiraea douglasii Frederick W. Oettinger 1969-8-16 1409 Siskiyou English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1799 Comment
  RSA447291  Stachys M. B. Dunkle 1944-7-16 9115 Siskiyou Siskiyou Natl. Forest, Coastal Northern California. Comment
  UCLA39900  Stachys ajugoides var. rigida Robert T. Clausen and Harold Trapido 1940-7-26 4958 Siskiyou near Wagon Camp; So. Cascade Mts., Sacramento River Basin, Mt. Shasta 1734 Comment
  UCLA70899  Stachys ajugoides var. rigida Louis C. Wheeler 1934-6-4 2631 Siskiyou Humbug Gulch Siskiyou Mts., Horse Creek 609 Comment
  HSC63581  Stachys rigida J. P. Smith, Steve Selva 1970-7-16 4405 Siskiyou Beaver Creek Campground. 823 Comment
  UC642528  Stellaria calycantha unknown 1939-7-7 13624 Siskiyou Wagon Camp; Mount Shasta Comment
  CAS-BOT-BC391220  Stellaria longipes subsp. longipes A. A. Heller 1920-6-27 13397 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CHSC88120  Stellaria longipes var. longipes Jenny Marr 1993-7-1 130 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC516468  Stenanthium occidentale Gilbert Muth 1966-7-19 427 Siskiyou Marble Gap Trail, along 1st bluff, Marble Mts. 1828 Comment
  CAS-BOT-BC516471  Stenanthium occidentale Annie M. Alexander; Louise Kellogg 1949-7-24 5857 Siskiyou Paradise Lake, Marble Mountains 2072 Comment
  HSC77094  Stenanthium occidentale K. T. Stillman 1976-8-7 364 Siskiyou Marble Mtn. Wilderness Area, trail to Marble Valley Guard Station Comment
  CAS-BOT-BC375645  Stephanomeria lactucina A. A. Heller 1920-8-3 13491 Siskiyou Near Sisson Comment
  UCD136391  Stephanomeria lactucina R. Tofsrud; J. M. Tucker 1948-8-4 1784 Siskiyou around 1.5 miles northwest of McCloud. Comment
  SEINET10968201  Stipa californica Mary Susan Taylor 1980-8-18 Taylor 3257 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
  HSC36418  Stipa occidentalis var. occidentalis J. O. Sawyer 1969-7-9 1267 Siskiyou Summit above S Sugar Lake. 2378 Comment
  SACT002412  Stipa stillmanii Verne Grant, Irving Schneider 1947-8-26 Siskiyou On lava plateau Comment
  CAS-BOT-BC61125  Streptanthus barbatus L. E. Smith 1913-6-29 418 Siskiyou Rainbow. Comment
  CAS-BOT-BC87871  Streptanthus tortuosus Geo. B. Grant 1902-9-7 s.n. Siskiyou Mount Shasta. Horse Camp. Comment
  HSC76965  Streptanthus tortuosus K. T. Stillman 1976-9-10 505 Siskiyou Marble Mtn. Wilderness Area, trail from Marble Gap to Elk Valley 2104 Comment
  JEPS84282  Streptanthus tortuosus L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6371 a Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1/2 mi e of Red Butte summit) 1900 Comment
  SD79848  Streptanthus tortuosus Helen V. Witham 1969-10-9 607 Siskiyou Timberline, Mt. Shasta. 2400 Comment
  UCD84701  Streptanthus tortuosus Robert E. Preston 2009-5-27 2684 Siskiyou At confluence of Klamath River and Three Creeks, along Hwy 96. 141 Comment
  CAS-BOT-BC87860  Streptanthus tortuosus Gilbert Muth 1965-8-5 s.n. Siskiyou On trail to Black Mountain. Comment
  POM95331  Streptanthus tortuosus Geo. D. Butler 1909-7-15 893 Siskiyou Russian Creek. 1829 Comment
  RSA237327  Streptanthus tortuosus Frederick W. Oettinger 1967-6-24 118 Siskiyou Ridge near Etna Summit on road between Etna and Sawyer s Bar. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CHSC30241  Streptanthus tortuosus var. orbiculatus M. S. Taylor; J. Prouty, E. Heinitz 1980-8-19 3268 A Siskiyou Paint Pot Crater. 1920 Comment
  HSC35794  Streptanthus tortuosus var. tortuosus J. O. Sawyer 1969-6-12 881 Siskiyou Ridge SE of Eaton Lake 2226 Comment
  HSC58949  Streptopus amplexifolius Marvin Butler 1971-7-9 79 Siskiyou Near El Capitan 1464 Comment
  CAS-BOT-BC516436  Streptopus amplexifolius Ira L. Wiggins 1955-7-24 13502 Siskiyou Trail at crossing of China Creek, above diversion dam 1301 Comment
  RSA68948  Streptopus amplexifolius A. E. Culbertson 1943-7-1 10 Siskiyou Near Forest Service Campground about a mile downstream from Castle Lake on road to town of Shasta. On a north slope of a 6600 eastern spur of Trinity Mountains and 1500 above Sacramento River., Within 9 air miles of its headwaters to the west. Mt. Shasta 13 miles to the northeast. 1524 Comment
  OBI9065  Styrax redivivus H. E. McMinn 1931-6-26 2493 Siskiyou Pit River Bridge and hwy Comment
  RSA210857  Suaeda calceoliformis R. F. Thorne, J. Henrickson, C. W. Tilforth, K. Thorne 1969-9-3 39041 a Siskiyou 2 miles W of Lower Klamath National Wildlife Refuge 1296 Comment
  UC1565731  Swertia perennis W. J. Ferlatte 1980-9-1 2033 Siskiyou ca 0.5 mi n China Mountain (n 70 degrees e of Crater Lake) 2316 Comment
  CAS-BOT-BC269611  Symphoricarpos albus var. laevigatus William A. Dayton 1913-9-14 586 Siskiyou Shasta National Forest. E. Fk of Scott River Range along Rail Creek 1341 Comment
  RSA43680  Symphoricarpos hesperius H. M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road. 1220 Comment
  UC1408788  Symphoricarpos mollis Frederick W. Oettinger 1968-8-6 542 Siskiyou ne side Little Medicine Lake (due n of Hancock Lake, vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1996 Comment
  UC223707  Symphyotrichum bracteolatum Elmer I. Applegate 1923-9-7 3970 Siskiyou Doggett Creek 1737 Comment
  HSC29235  Symphyotrichum foliaceum var. parryi Frederick W. Oettinger 1969-8-16 1407 Siskiyou Marble Mtn. Wilderness Area, central areas of Wire Grass Meadow below English Lake 1677 Comment
  HSC68185  Symphyotrichum foliaceum var. parryi J. P. Smith, J. O. Sawyer 1973-8-14 7296 Siskiyou W shore of Campbell Lake 1768 Comment
  HSC72274  Symphyotrichum spathulatum var. spathulatum J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8969 Siskiyou Hwy 3, 2.5 mi. N of Siskiyou-Trinity County line Comment
  HSC62620  Symphyotrichum spathulatum var. spathulatum Ruby Van Deventer 1960-7-14 Siskiyou Youngs Valley Comment
  IRVC26651  Taeniatherum caput-medusae L. C. Wheeler 1935-6-4 3546 Siskiyou Shasta Valley; Grenada. 793 Comment
  UCD86207  Taeniatherum caput-medusae H. S. Yates 1936-6-21 5808 Siskiyou Yreka. 1/2 mile NE of Hilt. California Forest and Range Experiment Station. 1036 Comment
  UC615192  Taraxia tanacetifolia Beryl O. Schreiber 1932-7-18 443 Siskiyou near Dorris Comment
  CAS-BOT-BC81336  Taxus brevifolia H. A. Thomas; J. H. Thomas 1954-7-23 4472 Siskiyou Salmon-Trinity Mts., about 6 miles SE of Cecilville, vicinity of Blind Horse Creek 1036 Comment
  CAS-BOT-BC81339  Taxus brevifolia J. G. Lemmon & Wife s.n. Siskiyou Near Mt. Shasta Comment
  CAS-BOT-BC85233  Taxus brevifolia W. R. Dudley 1899-8-14 s.n. Siskiyou Near Pig Creek, McCloud Comment
  HSC29493  Taxus brevifolia Frederick W. Oettinger 1968-8-13 504 Siskiyou Marble Mtn. Wilderness Area, NE side of Hancock Lake 1936 Comment
  RSA237817  Taxus brevifolia Frederick W. Oettinger 1968-8-13 504 Siskiyou Northeastern side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UC1539985  Tetradymia canescens M. Mitchell 1936-5-2 41 Siskiyou 0.25 mi sw Fleener Chimneys; Lava Beds National Monument 1402 Comment
  UC375277  Thalictrum fendleri Geo. D. Butler 1910-7-8 1672 Siskiyou Shackelford Creek Comment
  CAS-BOT-BC88062  Thelypodium brachycarpum A. A. Heller 1905-6-9 8011 Siskiyou Montague. Comment
  HSC49929  Thelypodium brachycarpum Gilbert Muth 1978-8-2 7326 Siskiyou Near Cabin Meadow Creek, close to the town of Callahan 1853 Comment
  POM148439  Thelypodium brachycarpum J. B. Feudge 1927-7-24 1670 Siskiyou Trail to Mt Eddy from Sisson. 1677 Comment
  UC1473427  Thelypodium brachycarpum Gilbert Jerome Muth 1978-8-3 6794 Siskiyou near Kangaroo Lake (close to town of Callahan); China Mt. Quad. 1951 Comment
  SD46554  Thelypodium flexuosum E. K. Balls, L. W. Lenz 1956-6-18 21721 Siskiyou 5.7 miles southeast of Gazelle, U. S. Highway 99, Yreka to Dunsmuir. 885 Comment
  CAS-BOT-BC88081  Thelypodium flexuosum Elmer I. Applegate 1935-6-2 9286 A Siskiyou Frenner's ranch, near north Boundary of Lava Beds National Monument. Comment
  CAS-BOT-BC77737  Thelypteris nevadensis Louis C. Wheeler 1934-8-21 3191 Siskiyou East Fork Horse Creek, Klamath National Forest 1219 Comment
  SEINET12156919  Thermopsis macrophylla J. P. Tracy 1950-1 19213 Siskiyou 5 mi SE of Flint Valley along the road to Prospect Hill Comment
  JEPS19777  Thlaspi montanum var. montanum Rimo Bacigalupi with S. Galen Smith 1957-6-26 5951 Siskiyou meadows at s. end Gumboot Lake (head of S. Fork Sacramento R., close to Trinity Co. line); S. Fork Sacramento R., Gumboot Lake 1859 Comment
  JEPS25666  Thlaspi montanum var. montanum Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7309 Siskiyou meadow at Twin Valley (4 air-line mi nne of Preston Peak, watershed of Indian Creek, just e of Del Norte County line); Siskiyou Mts., watershed Indian Creek, nne Preston Pk 1493 Comment
  JEPS54044  Thlaspi montanum var. montanum J. W. Kisling 1910-4-20 Siskiyou Edgewood Comment
  UC375350  Thysanocarpus radians Geo. D. Butler 1909-4-4 550 Siskiyou around Yreka; around Yreka Comment
  UC725936  Thysanocarpus radians A. A. Heller 1929-5-14 14856 Siskiyou along U.S. Highway #99 about 2 mi s Yreka; s of Yreka Comment
  UC530060  Tiarella trifoliata var. unifoliata Louis C. Wheeler 1934-8-20 3196 Siskiyou West Fork Beaver Creek; Siskiyou Mts., West Fork Beaver Creek 1066 Comment
  SEINET12044516  Tofieldia glutinosa J. T. Howell 1937-1 13371 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UC3963  Tofieldia occidentalis subsp. occidentalis unknown 1431 Siskiyou 1066 Comment
  HSC73319  Tolmiea diplomenziesii Gail Newton 1980-6-20 500 Siskiyou Near Bald Mtn. 1097 Comment
  UC164324  Tonella tenella Geo. D. Butler 1909-4-18 626 Siskiyou near Yreka Comment
  HSC42953  Torreyochloa pallida var. pauciflora J. O. Sawyer, Ken Stillman 1976-7-1 2779 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  SEINET10810172  Torreyochloa pallida var. pauciflora Louis C. Wheeler 1935-7-26 Wheeler 3714 Siskiyou Siskiyou Mts., Jaynes Canyon. Wet sunny meadow. Mt. Diablo Mer. S 12 T 47 N, R 10 W. 1951 Comment
  CAS-BOT-BC169256  Toxicodendron diversilobum Alice Eastwood 1923-5-18 11836 Siskiyou Shasta Sprnigs Comment
  UCD18942  Triantha occidentalis A. H. Murphy 1955-7-27 55 D Siskiyou Klamath National Forest, Marble Mountains, Cold Springs Meadow. 1676 Comment
  CAS-BOT-BC519574  Triantha occidentalis subsp. occidentalis A. A. Heller 1920-7-30 13488 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  UC1187356  Trichostema simulatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6870 Siskiyou 3 mi below(N) of Scott Mountain road summit (on road to Callahan) 1219 Comment
  UC1258455  Trientalis latifolia Maralyn A. Renner 1980-6-24 1039 Siskiyou Tributary stream to East Fork Seiad Creek, where crossed by F.S. Road. 48N20 East Fork Seiad Creek; Klamath National Forest, East Fork Seiad Creek 1021 Comment
  UCSC008680  Trifolium cyathiferum Randall Morgan 2003-7-12 3012 Siskiyou Cleghorn Meadow, circa 13 road miles north of Highway 96 on Oak Knoll Ranger Station Road, +/- east of Klamath River Village Comment
  HSC58924  Trifolium howellii Marvin Butler 1971-8-11 282 Siskiyou Near Marv's Meadow 1464 Comment
  HSC61930  Trifolium howellii Ruby Van Deventer 1939-7-18 Siskiyou Poker Flat 1585 Comment
  RSA237887  Trifolium howellii Frederick W. Oettinger 1968-7-17 557 Siskiyou Pine Lake Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  RSA261447  Trifolium howellii J. M. Tucker, D. V. Hemphill 1974-7-27 4299 Siskiyou Near Haypress Creek, Haypress Meadows, Marble Mountain Wilderness Area. 1463 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
  UC70388  Trifolium longipes var. hansenii Milo S. Baker 1898-8-1 491 Siskiyou Paynes Springs Comment
  UC375414  Trifolium repens Geo. D. Butler 1908-6-23 1036 Siskiyou Yreka Comment
  HSC36716  Trillium ovatum Brent Whitely 1975-7-1 116 Siskiyou 671 Comment
  HSC780  Trillium ovatum subsp. oettingeri William J. Ferlatte 1967-7-9 691 Siskiyou Kidd Creek Trail 1890 Comment
  UC1409210  Trillium ovatum subsp. oettingeri Frederick W. Oettinger 1967-6-27 124 Siskiyou off Music Creek Log rd. Salmon Mts, High Lake Basins, English Peak vicinity, Marble (ne. 1/4 of n.w. 1/4 of Sect. 23, Etna Quad.) 1731 Comment
  UCD139920  Trillium ovatum subsp. oettingeri Maralyn A. O' Meara 1973-6-25 240 Siskiyou North Russian Creek, 1/2 mile south of Etna Summit on road from Sawyer's Bar to Etna. 1706 Comment
  UC1265465  Trisetum canescens Frederick W. Oettinger 1969-9-5 1682 Siskiyou near Abbott Lake (Salamander Pond, vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  HSC26705  Trisetum spicatum William J. Ferlatte 1971-9-18 1384 Siskiyou Caribou Basin. 2226 Comment
  RSA233651  Trisetum spicatum R. F. Thorne, Frederick W. Oettinger 1969-8-10 38997 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  CAS-BOT-BC133482  Triteleia crocea L. B. Kildale 1930-6-1 9831 Siskiyou Mill Creek near Etna Mills Comment
  HSC68552  Triteleia crocea Maralyn A. Renner 1980-6-8 802 Siskiyou Slopes E of Hwy. 3 1341 Comment
  JEPS5654  Triteleia crocea W. L. Jepson 1907-7-10 2877 Siskiyou near Preston Peak; Siskiyou Mountains Comment
  RSA60793  Triteleia crocea Dorothy Parker 1948-5-16 s.n. Siskiyou Near Harstrand Gulch, east side of Scott Valley 915 Comment
  CAS-BOT-BC133487  Triteleia crocea R. C. Barneby 1954-5-16 11509 Siskiyou Klamath R. canyon, 10 1/2 mi. below Klamath River P.O. 1550 Comment
  CHSC2073  Triteleia crocea var. modesta M. Yoder 1941-7-12 Siskiyou Castle Lake. Comment
  UC165733  Triteleia hyacinthina Geo. D. Butler 1910-5-27 1415 Siskiyou wet meadow Shasta Valley Comment
  UCSB24990  Triteleia ixioides subsp. anilina Keefe, Joseph 1967-7-11 Siskiyou Little Castle Lake, southwest of Castle Lake, 10 miles southwest of the city of Mt. Shasta 1981 Comment
  SEINET10534136  Triteleia ixioides subsp. anilina A. Arthur Heller 1916-6-20 Heller 12413 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy in openings in the forest, 3900 feet. The prevalent tree is Douglas Fir with some white fir and sugar pine, after cutting the original stand of Jeffrey pine. The common undershrubs are ceanothus and Uva-ursi in the dry places with Salix and Corylus in low ground. Comment
  HSC29677  Tsuga mertensiana Frederick W. Oettinger 1968-9-2 669 Siskiyou Marble Mtn. Wilderness Area, E of inlet To Upper English Lake, Bulk Collection 53 1829 Comment
  CAS-BOT-BC80257  Tsuga mertensiana subsp. grandicona T. H. Harris 1951-6-1 s.n. Siskiyou Happy Camp 1828 Comment
  CAS-BOT-BC74097  Turritis glabra Wm. Bridge Cooke 1941-7-11 16040 Siskiyou Around MacBride Springs, Mount Shasta. 1524 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
  HSC46194  Uropappus lindleyi Jennifer Whipple 1977-4-30 1886 Siskiyou Scott Valley near Weston Gulch 854 Comment
  CAS-BOT-BC199190  Vaccinium cespitosum John Thomas Howell 1937-7-24 13416 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC19469  Vaccinium cespitosum J. O. Sawyer 1969-8-1 1658 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  SEINET3107072  Vaccinium cespitosum Steve Selva, Roger Jensen 1974-8-16 14 Siskiyou North shore of Sugar Lake. Comment
  UCD118045  Vaccinium cespitosum D. V. Hemphill 1974-7-28 s.n. Siskiyou Stanshaw Trail, 1/4 mile south of Jawbone Camp. Marble Mountain Wilderness Area. 1554 Comment
  HSC19370  Vaccinium membranaceum J. O. Sawyer 1968-7-22 255 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC47103  Vaccinium membranaceum J. O. Sawyer, K. Stillman 1978-7-6 3300 Siskiyou Along Happy Camp- O'Brien Rd., 0.5 mi. S of summit and S of Louse Creek 1280 Comment
  HSC68383  Vaccinium membranaceum Maralyn A. Renner 1980-6-26 1205 Siskiyou N edge of Flint Valley 1390 Comment
  UC22196  Vaccinium membranaceum Harley P. Chandler Jun 1901 1577 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  SD230222  Vaccinium parvifolium Louis C. Wheeler 1959-7-25 7600 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  HSC23660  Vaccinium scoparium J. O. Sawyer 1969-8-3 1941 Siskiyou Alluvial terrace along Duck Lake Creek 1921 Comment
  JEPS123401  Vaccinium scoparium Julie Kierstead Nelson with Don Lepley, Rhonda Posey 2015-8-13 2015 -132 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. Comment
  UC1409421  Vaccinium scoparium Frederick W. Oettinger 1968-8-3 370 Siskiyou mid-trail between Diamond Lake and Hancock Lake (w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 2011 Comment
  UC642554  Vaccinium uliginosum subsp. occidentale unknown 1939-7-7 13606 Siskiyou Wagon Camp Mount Shasta 1737 Comment
  CAS-BOT-BC199796  Vahlodea atropurpurea Wm. Bridge Cooke 1939-8-24 13892 Siskiyou Along the bank of Squaw Valley Creek in its middle cascade portion Comment
  RSA433754  Valeriana capitata subsp. californica Unspecified 9201 Siskiyou Marble Valley, Marble Mountains. Comment
  RSA238572  Vancouveria hexandra Frederick W. Oettinger, R. Thorne 1969-8-6 1232 Siskiyou Northwest of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 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
  CHSC2323  Veratrum californicum var. californicum V. Holt 1932-7-10 Siskiyou Mt. Shasta City. 1097 Comment
  UCD78077  Veratrum californicum var. californicum Robert E. Preston 2002-7-14 1931 Siskiyou Klamath National Forest, N slope of Rainbow Mountain 1895 Comment
  JEPS24442  Veratrum insolitum Rimo Bacigalupi with L. Constance and L. R. Heckard 1960-7-21 7483 Siskiyou 14 mi e Cecilville (6 mi w of rd summit, along new rd from Cecilville to Callahan, watershed of e fork of the South Fork of the Salmon River, just above Six-mile Creek) 1371 Comment
  UC1190161  Veratrum insolitum Ira L. Wiggins 1955-7-24 13484 Siskiyou ridge between upper reaches of China Creek and Blind Horse Creek 1280 Comment
  UC164389  Veratrum insolitum Geo. D. Butler 1908-8-26 536 Siskiyou head of E<?> Creek Salmon Mountain Comment
  UC1409323  Veratrum viride Frederick W. Oettinger 1969-8-1 346 Siskiyou s side Hancock Lake (High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness Area, western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2042 Comment
  RSA183714  Veratrum viride Gilbert Muth 1965-8-3 152 Siskiyou Marble Valley, Marble Mts. Comment
  UC1174940  Veratrum viride P. C. Everett and E. K. Balls 1959-10-23 23940 Siskiyou 4 mi sw from Etna (on road from Callaban to Somesbar); Salmon Mountains 1676 Comment
  UC1409321  Veratrum viride Frederick W. Oettinger 1969-9-2 1592 Siskiyou near Tom Tyler Cabin (Bear Meadow, Marble Mountain Wilderness Area, High Lake Basins in vicinity of English Peak, Salmon Mountains, western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1996 Comment
  HSC26765  Verbascum thapsus J. P. Smith, J. O. Sawyer 1971-9-18 4840 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  UC1037353  Verbena lasiostachys var. lasiostachys Douglas Barbe 1955-6-28 17 Siskiyou 0.6 mi n, 50 yds from road Callahan; Klamath Mts 1036 Comment
  RSA15799  Verbena lasiostachys var. lasiostachys Carl B. Wolf 1927-8-26 1047 Siskiyou On the Klamath River, 4 mi N of Gottville. Comment
  HSC61933  Veronica americana Ruby Van Deventer 1939-7-18 Siskiyou Poker Flat 1585 Comment
  HSC73337  Veronica americana Gail Newton 1980-6-20 463 Siskiyou Near Bald Mtn. 1097 Comment
  CHSC88114  Veronica peregrina subsp. xalapensis Jenny Marr 19