Search Results — 2000 specimen records retrieved (1344 records with coordinates)
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC333504  Abies magnifica var. shastensis unknown 1891-11-12 Siskiyou near Mt. Shasta Comment
  JEPS84283  Abies procera L. R. Heckard with R. Raiche and S. Winchester 1986-7-17 6487 Siskiyou ne of summit Copper Butte (e of Cook and Greene Pass) 1767 Comment
  RSA14365  Acer circinatum Elmer I. Applegate 1895-5-30 70 Siskiyou East lake of Mt. Shasta, near Sissen. Comment
  CLARK-A1528-1053  Acer circinatum John C. Roos 1939-7-5 1520 Siskiyou 990 Comment
  RSA237827  Acer glabrum var. torreyi Frederick W. Oettinger 1969-9-5 1675 Siskiyou At Willow Springs, along the trail between Abbotts Upper Cabin and English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  CAS-BOT-BC332785  Acer macrophyllum Alice Eastwood 1917-9-2 6654 Siskiyou Shasta Springs Comment
  HSC2804  Acer macrophyllum C. B. Wolf 1927-8-26 1037 Siskiyou Along Klamath River, 4 mi. N of Gottville Comment
  CDA35547  Acer negundo subsp. californicum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2621 Siskiyou 200 meters north of Hamilton Street on Highway 3, north edge of Fort Jones. Comment
  HSC99670  Achillea millefolium G. L. Clifton, Griswold 1979-6-28 6119 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  UC1313046  Achillea millefolium J. M. Tucker and L. K. Mann and S. L. Holloway 1963-8-18 3758 Siskiyou sw ridge Black Marble Mountain; Marble Mountain Wilderness Area 2133 Comment
  UC890994  Achillea millefolium unknown 1915-8-26 Siskiyou Mt. Eddy 1828 Comment
  RSA105392  Achillea millefolium G. D. Barbe 1955-7-7 s.n. Siskiyou South of Forest Camp, Etna 884 Comment
  RSA237218  Achillea millefolium var. occidentalis Frederick W. Oettinger 1967-8-13 266 Siskiyou Common on dry margins of Bear Meadow' midway, as the crow flies, between Tom Taylor Cabin and English Peak Lookout. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  HSC29268  Achlys triphylla Frederick W. Oettinger 1969-9-4 1669 Siskiyou Marble Mtn. Wilderness Area, near gap between Tom's Lake Basin and Tobacco Lake Basin 1829 Comment
  UCD50434  Achnatherum hymenoides Mr. Roseman 1913-1 11 Siskiyou Butte Valley. Comment
  CAS-BOT-BC105075  Achnatherum nelsonii subsp. dorei R. C. Wenk 2008-7-24 917 Siskiyou SW side of Mount Shasta, growing by side of road, Everitt Memorial Highway 1676 Comment
  CHSC61554  Achnatherum nelsonii subsp. dorei L. P. Janeway 1983-8-26 606 Siskiyou Siskiyou Mountains; at Poker Flat. 1524 Comment
  JEPS121759  Achnatherum nevadense B. Castro and L. P. Janeway 2007-7-29 1670 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, at base of the N-facing slope. Ca 150 ft up old Rd43N39 (now closed) from jcn with its A spur, in the old road-bed on semi-shaded red fir forest floor. Comment
  JEPS72979  Achnatherum occidentale subsp. californicum W. L. Jepson 1940-6-27 20037 Siskiyou Mt. Shasta, e slope Mt. Shasta 1828 Comment
  POM207038  Achnatherum occidentale subsp. californicum E. B. Copeland 1903-8-16 3896 Siskiyou Mt. Shasta. 2439 Comment
  UC1133074  Achnatherum occidentale subsp. californicum H. A. Jensen 1933-7-27 Siskiyou Grey Butte Dunsmuir Quadrangle Comment
  UCD51161  Achnatherum occidentale subsp. californicum Beecher Crampton 1956-8-22 3862 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  RSA238984  Achnatherum occidentale subsp. occidentale Frederick W. Oettinger 1968-8-8 454 -b Siskiyou Crapo Meadow near Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  CAS-BOT-BC218018  Achnatherum thurberianum John Thomas Howell 1952-6-14 28352 Siskiyou Serpentine Knoll, 7 miles E of Callahan on road to Gazelle Comment
  CAS-BOT-BC218017  Achnatherum thurberianum Leo W Whitney 1934-6-27 1974 Siskiyou Near Dome Mountain, 27 miles NE of Tennant Comment
  CAS-BOT-BC29149  Achyrachaena mollis L. E. Smith 1915-6-1 s.n. Siskiyou Hilt Comment
  UCD103954  Acmispon americanus var. americanus W. A. Williams 1957-7-23 57 R Siskiyou Dead Fall Creek, Shasta National Forest, e. of Mt. Eddy. 2011 Comment
  HSC71631  Acmispon micranthus J. P. Smith 1973-5-5 6504 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC34  Aconitum columbianum subsp. columbianum William J. Ferlatte 1966-8-19 437 Siskiyou Kidd Creek Trail 1890 Comment
  HSC35  Aconitum columbianum subsp. columbianum William J. Ferlatte 1966-8-19 436 Siskiyou Kidd Creek Trail 1890 Comment
  HSC96416  Aconitum columbianum subsp. columbianum Gordon Leppig, J. Kalt 1996-7-9 370 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  HSC61850  Aconitum columbianum subsp. columbianum Ruby Van Deventer 1938-7-21 Siskiyou Poker Flat 1768 Comment
  HSC78224  Aconitum columbianum subsp. columbianum L. P. Janeway 1983-8-26 594 Siskiyou Poker Flat, wet upper part of lower portion of meadow 1524 Comment
  SEINET5337490  Aconitum columbianum subsp. columbianum E. McClintock, W. Roderick 1967-7-28 s.n. Siskiyou Gumboat Lake, SW Mt Eddy. 1829 Comment
  CAS-BOT-BC412615  Aconogonon alaskanum John Thomas Howell 1939-8-3 14976 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC412910  Aconogonon davisiae Geo. D. Butler 1910-7-8 1677 Siskiyou Shackleford Creek 1828 Comment
  HSC61846  Aconogonon davisiae Ruby Van Deventer 1938-7-18 Siskiyou Poker Flat 1585 Comment
  HSC4992  Actaea rubra J. O. Sawyer 1968-6-18 238 Siskiyou Valley bottom of Blakes' Fork. 1707 Comment
  HSC28742  Actaea rubra Frederick W. Oettinger 1969-8-21 1483 Siskiyou Marble Mtn. Wilderness Area, Willow Spring on English Lake Trail 1677 Comment
  CAS-BOT-BC29313  Adenocaulon bicolor Laura Myrtle Lathrop 1903-7-16 s.n. Siskiyou Shasta Retreat Comment
  HSC4991  Adenocaulon bicolor J. O. Sawyer 1968-7-10 459 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  HSC27637  Adenocaulon bicolor Carl W. Mize 1972-6-21 80 Siskiyou 305 Comment
  CAS-BOT-BC68954  Adiantum aleuticum Peter H. Raven 1956-9-5 10452 Siskiyou North Fork of Sacramento River 2194 Comment
  CAS-BOT-BC68959  Adiantum aleuticum Lemmon 1881-7-1 s.n. Siskiyou Mt. Shasta Comment
  HSC68427  Adiantum aleuticum Maralyn A. Renner 1980-7-4 1400 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  UCD69126  Adiantum aleuticum D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-13 s.n. Siskiyou Callahan-Cecilville. Cecilville Road. Klamath National Forest. 1650 Comment
  UC1593365  Adiantum capillus-veneris Alan Smith with Chris Richards, C. Don Macneill, Janet Sowers, Bob Martin, Pat Toops, and Barney 1992-6-6 2543 Siskiyou Fossil Cave; Lava Beds National Monument 1280 Comment
Read comments
May 30 2013
  CHSC91255  Aegilops cylindrica Lowell Ahart; John Dittes 2005-6-10 12122 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  JEPS107957  Aegilops cylindrica Lowell Ahart, John Dittes 2005-6-10 12122 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada 785 Comment
  CDA36800  Aegilops cylindrica D. B. Joley 1976-6-24 1 Siskiyou Montague. 0 Comment
  HSC58866  Ageratina occidentalis Marvin Butler 1971-8-11 302 Siskiyou Near Copper Camp; close to the town of Cave Junction 1403 Comment
  UC75800  Agoseris X dasycarpa Milo S. Baker 1897-8-1 154 Siskiyou top Medicine Lake Mts. 2438 Comment
  CAS-BOT-BC15480  Agoseris X dasycarpa Elmer I. Applegate 1923-8-18 3850 Siskiyou 2 miles east of Medicine Lake Comment
  CAS-BOT-BC21372  Agoseris aurantiaca var. aurantiaca John Thomas Howell 1939-8-4 15030 Siskiyou Between Elk Mt. and Marble Rim, Marble Mts. Comment
  JEPS74564  Agoseris aurantiaca var. aurantiaca W. J. Ferlatte 1966-8-5 322 Siskiyou slope on n side Caribou Mtn.; Trinity Alps, Caribou Mtn. 1920 Comment
  RSA238753  Agoseris aurantiaca var. aurantiaca Frederick W. Oettinger 1968-8-14 518 Siskiyou Bear Meadow,' mid-way, as the crow flies, between Tom Taylor Cabin and English Peak lookout. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  RSA14495  Agoseris glauca var. dasycephala Elmer I. Applegate 1923-8-17 3845 Siskiyou West side of Medicine Lake Comment
  CAS-BOT-BC15385  Agoseris grandiflora var. grandiflora Lewis S. Rose 1945-6-22 45167 Siskiyou Beaver Creek & Klamath River 548 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
  CAS-BOT-BC15392  Agoseris grandiflora var. grandiflora LeRoy Ellsworth Detling 1950-6-11 6636 Siskiyou Siskiyou Pass 1127 Comment
  CAS-BOT-BC15344  Agoseris heterophylla Alice Eastwood 1923-5-20 11862 Siskiyou Shasta Springs Comment
  RSA48237  Agoseris heterophylla Roxana S. Ferris, Laura Lorraine 1948-6-12 11837 Siskiyou Gazelle Mtn grade, road betw Callahan and Gazelle. 1500 Comment
  UC204765  Agrostis alba Geo. D. Butler 1910-7-17 1727 Siskiyou creek bank Oro Fino Comment
  SEINET5335956  Agrostis alba B. Cooke 1939-8-22 13880 Siskiyou Mount Shasta, Wagon Camp Transition Zone 1737 Comment
  CAS-BOT-BC126985  Agrostis exarata Ira L. Wiggins 1955-7-22 13453 Siskiyou In South Fork of Salmon River, 9.5 miles above Cecilville. 1066 Comment
  CAS-BOT-BC126997  Agrostis exarata John Thomas Howell 1939-8-9 15205 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  CAS-BOT-BC126998  Agrostis exarata John Thomas Howell 1939-8-10 15250 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  HSC26916  Agrostis exarata J. P. Smith, J. O. Sawyer 1971-9-17 4779 Siskiyou Little Duck Lake Comment
  SD230128  Agrostis exarata Louis C. Wheeler 1934-8-2 3020 Siskiyou Siskiyou Mountains: Head of Jaynes Canyon. 2073 Comment
  UCD37085  Agrostis exarata Beecher Crampton 1956-8-21 3828 Siskiyou Siskiyou County, 0.5 mile northeast of Gumboot Lake. 1767 Comment
  HSC30452  Agrostis gigantea Frederick W. Oettinger 1968-9-8 790 Siskiyou Marble Mountains Wilderness area, S. of English Lake. 1646 Comment
  CAS-BOT-BC138929  Agrostis pallens John Thomas Howell 1939-8-2 14943 Siskiyou Marble Mountains. Spirit Lake. 1828 Comment
  CAS-BOT-BC138937  Agrostis pallens W. R. Dudley 1901-8-18 s.n. Siskiyou Jackson's Lake. Comment
  CAS-BOT-BC138938  Agrostis pallens Copeland 1903-9-6 3801 Siskiyou Mount Eddy. Comment
  HSC22420  Agrostis pallens J. O. Sawyer 1969-8-2 1723 Siskiyou E facing slope SW of Little Duck Lake 2241 Comment
  RSA239064  Agrostis pallens Frederick W. Oettinger 1969-9-2 1587 Siskiyou Bear Meadow near Tom Taylor Cabin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  RSA239087  Agrostis pallens Frederick W. Oettinger 1969-8-16 1390 a Siskiyou near Upper English Lake? The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  SEINET7594122 Image available Agrostis pallens Frederick W. Oettinger 1969-1 1411 Siskiyou High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, northeast of Wiregrass Meadows near English Lake Basin 1676 Comment
  CAS-BOT-BC138695  Agrostis scabra Melissa A. Berry 1957-7-8 s.n. Siskiyou South Russian Creek at Power House. 822 Comment
  UCD53529  Agrostis stolonifera P. B. Kennedy 1923-7-29 s.n. Siskiyou by camp Sisson (Mount Shasta). Comment
  CAS-BOT-BC445372  Alisma plantago-aquatica Alice Eastwood 1912-7-17 1195 Siskiyou Sisson Comment
  CAS-BOT-BC459431  Allium acuminatum Alice Eastwood 1912-7-20 1249 Siskiyou Hornbrook Comment
  CAS-BOT-BC459432  Allium acuminatum Alice Eastwood; John Thomas Howell 1934-4-20 1784 Siskiyou 4 miles N of Weed Comment
  UC164023  Allium bolanderi Geo. D. Butler 1910-6-3 1469 Siskiyou Quartz Valley Comment
  CAS-BOT-BC462987  Allium bolanderi Marion Ownbey 1950-6-20 G. N. 52 Siskiyou 2 1/2 miles west of Hilt; grown at Pullman, Washington Comment
  CAS-BOT-BC462988  Allium bolanderi L. B. Kildale 1930-6-1 9704 Siskiyou Salmon River at Crapp Creek Comment
  CAS-BOT-BC462995  Allium bolanderi Volney Rattan 1903-1-1 s.n. Siskiyou Klamath Comment
  HSC39472  Allium bolanderi var. mirabile J. P. Smith, Steve Selva 1970-7-15 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  HSC46047  Allium falcifolium Maralyn O'Meara 1974-5-25 429 Siskiyou On Rd. 8, 2.4 mi. W of junction with Hwy. 3 1006 Comment
  UC796485  Allium falcifolium Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11840 Siskiyou road between Callahan and Gazelle; Gazelle Mountain grade 1499 Comment
  CAS-BOT-BC469236  Allium falcifolium H. C. Cantelow 1936-5-21 s.n. Siskiyou North slope of Scott Mountain 1219 Comment
  CAS-BOT-BC469239  Allium falcifolium H. C. Cantelow 1936-5-21 s.n. Siskiyou About 2 miles up Scott Mt. grade out Callahan Comment
  RSA47799  Allium falcifolium Roxana S. Ferris, Laura Lorraine 11716 Siskiyou Schoolhouse Hill, Plowman s Valley (Noyes Valley), E Fork of Scott River. Comment
  CAS-BOT-BC132145  Allium siskiyouense Thomas Howell 1884-6-17 s.n. Siskiyou Siskiyou Mountains Comment
  HSC30918  Allium siskiyouense Melinda F. Denton 1973-6-27 2797 Siskiyou Klamath National Forest, just S of border of Klamath and Siskiyou National Forests, 9 mi. S of intersection of 416C and 4007 on 416C 1628 Comment
  UC375195  Allium validum Geo. D. Butler 1908-8-3 112 Siskiyou canyon below Log Lake Shackleford Creek Comment
  CAS-BOT-BC478036  Allium validum John Thomas Howell 1939-8-3 14948 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  JEPS57164  Allium validum L. R. Heckard 1967-8-12 1657 Siskiyou along logging road heading s Stewart Springs (ca. 10 mi from U.S. Highway 99 n of Weed) 1950 Comment
  HSC104286  Allotropa virgata Samantha E. Andres 2016-7-23 24 Siskiyou Klamath National Forest, along Doe Flat Trail leading up to Devil's Punchbowl 1372 Comment
  HSC30612  Allotropa virgata Frederick W. Oettinger 1969-8-23 1515 Siskiyou Salmon Mtns., between Chimney Rock and Smith Lake. 1418 Comment
  UCD109994  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou In vicinity of cabin, lower Red Rock Valley, Marble Mountain Wilderness Area. 1493 Comment
  CAS-BOT-BC169640  Alnus rhombifolia Lewis S. Rose 1945-6-22 45182 Siskiyou Beaver Creek & Klamath River 548 Comment
  CAS-BOT-BC169386  Alnus viridis subsp. sinuata Gilbert Muth 1966-7-29 462 Siskiyou Damp meadow, Marble Valley, by waterfall. Marble Mts. 1828 Comment
  HSC29274  Alnus viridis subsp. sinuata Frederick W. Oettinger 1969-7-14 1012 Siskiyou High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area; along South of Charmaine lake 1921 Comment
  HSC4968  Alnus viridis subsp. sinuata J. O. Sawyer 1968-6-25 344 Siskiyou Along Horse Range Creek 1646 Comment
  RSA477428  Alyssum alyssoides L. C. Wheeler 1934-6-7 2653 Siskiyou Siskiyou Mountains: Hungry Creek Lookout. 1502 Comment
  UC163668  Amaranthus blitoides Geo. D. Butler 1909-8-18 1067 Siskiyou near Yreka Comment
  HSC101840  Amelanchier alnifolia var. semiintegrifolia J. P. Smith, J. O. Sawyer, R. J. Cole 2011-5-22 13177 Siskiyou Along the road from Cecilville to Forks of Salmon. 640 Comment
  HSC18539  Amelanchier pallida R. C. Wunner 1965-8-21 466 Siskiyou California Lava Beds National Monument; 1/4 mile S from Cinder Pit in direction of Caldwell Cave 1402 Comment
  JEPS126020  Amelanchier pallida E. T. Doucette 2013-5-21 13 -133 Siskiyou Greenhorn Road, Yreka, 8.3 miles from business district. Comment
  RSA211454  Amelanchier pallida William J. Ferlatte 1966-6-23 149 Siskiyou Between campground and S. Fork of the Salmon River. 1524 Comment
  CAS-BOT-BC136891  Amelanchier utahensis A. A. Heller 1905-6-9 8003 Siskiyou On the hills just east of Yreka Comment
  CAS-BOT-BC136892  Amelanchier utahensis Wm. Bridge Cooke 1938-8-5 11434 Siskiyou [MacBride Spring] McBride Springs Road Comment
  UC166492  Amelanchier utahensis Geo. D. Butler 1908-5-30 493 Siskiyou Humbug Mountain Comment
  JEPS41791  Anagallis linifolia Maxine Gibeson 1966-2-21 Siskiyou edge of Carlton Pasture, Elliott Creek Canyon Elliott Creek Canyon; Rogue R. Nat'l Forest, Elliott Creek Canyon (tributary of Ap Comment
  UC165395  Ancistrocarphus filagineus Geo. D. Butler 1909-5-23 718 Siskiyou trodden plains near Yreka Comment
  JEPS20045  Androsace elongata subsp. acuta George D. Butler 1909-3-7 579 Siskiyou near Yreka (Butcher Hill); Butcher Hill Comment
  POM215878  Androsace elongata subsp. acuta Louis C. Wheeler 1935-4-18 3432 Siskiyou Greenhorn Creek, Siskiyou Mountains. 945 Comment
  HSC44582  Anemone deltoidea Laura Witherspoon 1977-7-12 Siskiyou Flint Valley Comment
  JEPS60503  Anemone deltoidea W. L. Jepson 1937-7-30 18568 Siskiyou Poker Flat Siskiyou Mtns (headwaters Indian Creek) 1584 Comment
  CHSC1424  Anemone drummondii V. Holt 1932-6-26 Siskiyou Mt. Eddy. 2590 Comment
  HSC722  Anemone drummondii William J. Ferlatte 1966-6-23 120 Siskiyou Dorleska Summit 2134 Comment
  HSC4933  Anemone lyallii J. O. Sawyer 1968-6-18 204 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  CAS-BOT-BC391937  Anemone multifida Gilbert Muth 1965-8-6 s.n. Siskiyou North side of Black Mountain Comment
  CAS-BOT-BC391938  Anemone multifida Gilbert Muth 1965-8-6 s.n. Siskiyou Backside of Black Mountain Comment
  SEINET12098580  Anemone multifida H. P. Chandler 1901-1 1657 Siskiyou North Coast Ranges 2438 Comment
  JEPS17315  Anemone occidentalis unknown 1862-9-16 1419 Siskiyou Mt. Shasta 2438 Comment
  UC618888  Anemone occidentalis W. Bridge Cooke 1938-7-21 11601 Siskiyou s.w. slopes Red Butte; Mt. Shasta, Red Butte Comment
  RSA238273  Anemone occidentalis Frederick W. Oettinger 1967-7-25 182 Siskiyou Ridge SSE of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2223 Comment
  CDA39499  Anemopsis californica Cliff Giebner 1960-6-21 4540 Siskiyou Whitset Ranch. Yreka. 0 Comment
  HSC34298  Angelica tomentosa J. P. Smith, J. O. Sawyer 1973-8-14 7292 Siskiyou W shore of Campbell Lake 1768 Comment
  CAS-BOT-BC59284  Antennaria argentea Roxana S. Ferris; Laura Lorraine 1948-6-12 11724 Siskiyou French Creek Logging Road west of Callahan 1219 Comment
  HSC67543  Antennaria argentea J. P. Smith, J. O. Sawyer 1972-6-30 5640 Siskiyou Junction of French Creek and Sugar Creek Rd., 1/2 mi. W of Parrott Mill Rd. 1250 Comment
  UC166576  Antennaria argentea Geo. D. Butler 1909-5-9 700 Siskiyou (North Lennox St.) Yreka Comment
  CAS-BOT-BC59289  Antennaria argentea J. H. Thomas 1954-5-13 4160 Siskiyou Salmon Mountains, Klamath Nation Forest 1127 Comment
  JEPS13177  Antennaria geyeri W. L. Jepson 1894-1 Siskiyou Sisson Comment
  HSC45211  Antennaria media J. O. Sawyer, E. Cope 1977-6-20 2964 Siskiyou Behind Devil's Punchbowl 1829 Comment
  JEPS94381  Antennaria rosea subsp. confinis Vernon Oswald and Lowell Ahart 1997-7-28 8789 Siskiyou se of Medicine Lake (at Paynes Springs, on floor of Paynes Creek Canyon n of the campground); Paynes Creek Canyon, Paynes Springs 1981 Comment
  HSC4639  Antennaria rosea subsp. rosea R. C. Wunner 1965-8-21 459 Siskiyou California Lava Beds National Monument; 1/4 mile from Caldwell Butte towards Caldwell Ice Cave 1402 Comment
  HSC29213  Antennaria rosea subsp. rosea Frederick W. Oettinger 1969-7-13 1003 Siskiyou High Lake Basins near English Peak, Marble Mountain Wilderness Area; N of Upper English Lake 1776 Comment
  CDA6273  Antirrhinum majus T. C. Fuller 1965-6-1 13584 Siskiyou East side of Highway 99 just south of Dunsmuir exit, Dunsmuir. 0 Comment
  UCD123433  Antirrhinum vexillocalyculatum R. Tofsrud 1949-1 s.n. Siskiyou Exact location unknown. Comment
  CHSC116257  Apera interrupta Barbara L. Wilson; Nick Otting 2014-6-16 18102 Siskiyou Road 26 between Bumboot Lake and Lake Siskiyou. 1371 Comment
  JEPS93982  Apera interrupta Vernon H. Oswald, Mike Dolan, and Beth Corbin 1998-6-27 9243 Siskiyou Big Tableland at s.w. edge Lower Klamath Nat'l Wildlife Refuge; , Big Tableland 1353 Comment
  RSA24234  Apocynum androsaemifolium subsp. pumilum C. B. Wolf 1940-12-13 3889 Siskiyou Mt. Shasta s lower slopes. 4 mi N of Mt. Shasta City along power line road. 1280 Comment
  UC1190163  Aquilegia formosa Ira L. Wiggins 1955-7-24 13499 Siskiyou above diversion dam (trail at crossing of China Creek) 1301 Comment
  CAS-BOT-BC397947  Aquilegia formosa Gilbert Muth 1965-8-5 s.n. Siskiyou Stream behind Blk. Mt. Comment
  CAS-BOT-BC397948  Aquilegia formosa Margaret M. Hanna 1958-6-20 s.n. Siskiyou Near highway N of Dunsmuir Comment
  SEINET5337610  Aquilegia formosa G. Butler 1910-6-17 1576 Siskiyou Humbug mountain 1219 Comment
  HSC69383  Aquilegia formosa var. formosa Maralyn A. Renner 1980-7-24 1954 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  HSC73991  Aquilegia formosa var. formosa Gail Newton 1980-6-20 484 Siskiyou Near Bald Mtn. 1097 Comment
  HSC36732  Aquilegia formosa var. formosa Brent Whitely 1975-7-1 114 Siskiyou 671 Comment
  CDA36425  Arabis Larry Dewalt 1998-4-27 s.n. Siskiyou Vicinity of Tulelake Inspection Station residence. 0 Comment
  HSC22410  Arabis divaricarpa var. interposita J. O. Sawyer 1969-8-2 1709 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  RSA52143  Arabis eschscholtziana Dorothy Parker 1948-6-14 s.n. Siskiyou Rail Creek, Plowman s Valley 1204 Comment
  UC375279  Arabis holboellii var. retrofracta Geo. D. Butler 1910-6-5 1525 Siskiyou Log Lake Shackleford Creek Comment
  HSC69143  Arabis koehleri Maralyn A. Renner 1980-8-8 2474 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  HSC49944  Arabis modesta G. L. Clifton, Walter Overton 1979-5-28 3453 Siskiyou Near Klamath River, close to the town of Seiad Valley 488 Comment
  UC673139  Arabis modesta Lincoln Constance and Reed C. Rollins 1942-5-13 2907 Siskiyou 4 mi e Seiad; Klamath-Siskiyou Region, Klamath River 457 Comment
  HSC67751  Arabis platysperma J. O. Sawyer, J. Cole 1980-7-21 3888 Siskiyou Near Haight Mtn. along USFS Rd. running S-SW 1939 Comment
  HSC90602  Arabis platysperma Jennifer Whipple 1976-9-4 1806 Siskiyou Dale Creek drainage on the N face of Mount Eddy. 2195 Comment
  HSC239  Arabis platysperma var. howellii William J. Ferlatte 1967-8-20 1052 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  HSC69274  Arabis platysperma var. howellii Maralyn A. Renner 1980-9-1 2715 Siskiyou S side of Devil's Punchbowl 1829 Comment
  HSC90570  Arabis puberula Jennifer Whipple 1976-6-11 961 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  POM95492  Arabis sparsiflora Geo. D. Butler 1910-4-16 1178 Siskiyou Klamath hills Comment
  HSC22455  Arabis sparsiflora var. subvillosa J. O. Sawyer 1969-6-10 792 Siskiyou Lower slopes of Sugar Creek 1585 Comment
  JEPS20042  Arabis subpinnatifida George D. Butler 1909-4-8 587 Siskiyou hills w Yreka Comment
  UC375283  Arabis subpinnatifida Geo. D. Butler 1909-4-24 685 Siskiyou Greenhorn road Comment
  POM94633  Arabis suffrutescens Geo. D. Butler 1909-4-25 610 Siskiyou Quartz Valley. Comment
  HSC29159  Arabis suffrutescens var. horizontalis Frederick W. Oettinger 1969-7-15 1026 Siskiyou Marble Mtn. Wilderness Area, between Diamond Lake and Upper English Lake 2012 Comment
  CAS-BOT-BC171700  Aralia californica Carl B. Wolf 1927-8-26 1104 Siskiyou On the Klamath River, 8 mi. above Happy Camp Comment
  RSA138227  Aralia californica P. C. Everett, E. K. Balls 1959-10-24 23942 Siskiyou 6 mi. W from Red Bank F. S. Camp, on road to Somesbar from Sawyers Bar Comment
  RSA238712  Arceuthobium abietinum Frederick W. Oettinger 1969-8-22 1509 Siskiyou Just west of the outlet and along the shoreline of Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1822 Comment
  UC1078807  Arceuthobium campylopodum Job Kuijt 1957-5-31 1277 Siskiyou ca 3 mi above West Branch Guard Station and Campground (on rd from Happy Camp to Caves Junction, Oregon) 914 Comment
  UC1037436  Arceuthobium campylopodum Douglas Barbe 1955-7-29 314 Siskiyou 3/4 mi e Scott Mtn Rd (on private rd to Big Carmen Lake); Scott Mtns 1706 Comment
  RSA237456  Arceuthobium tsugense Frederick W. Oettinger 1969-9-5 1678 Siskiyou Between Abbotts Lake and Wiregrass Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  UCD51974  Arctostaphylos manzanita Warren Roberts 1967-9-25 Siskiyou Near Somes Bar. Comment
  UCR47872  Arctostaphylos manzanita Steve Morgan 1987-7-28 s.n. Siskiyou Sierra Nevada Mtns, McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, south of Mt. Shasta 1768 Comment
  CAS-BOT-BC40025  Arctostaphylos nevadensis Mrs. H. P. Bracelin 1931-6-19 428 Siskiyou North side of Mt. Eddy, above Metcalf ranch house, N. of Shasta City about 8 miles. 1249 Comment
  JEPS49538  Arctostaphylos nevadensis W. L. Jepson 1940-6-27 20040 Siskiyou e slope Mt. Shasta 1828 Comment
  RSA68855  Arctostaphylos nevadensis A. E. Culbertson 1943-6-26 101 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
  UC1190121  Arctostaphylos nevadensis Ira L. Wiggins 1955-7-27 13559 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  JEPS124856 Image available Arctostaphylos nevadensis C. L. Kline 1965-7-13 200 Siskiyou Mt. Shasta. 500' above ski bowl, Comment
  RSA96937  Arctostaphylos nevadensis P. C. Everett, E. K. Balls, George B. Everett 1954-10-11 20268 Siskiyou Road from Castle Lake to town of Mt. Shasta, about 2 mi. n. from Castle Lake Forest Service camp. 1280 Comment
  SEINET11989670  Arctostaphylos nevadensis R. Raiche, Zadnik, K. 1982-1 20785 Siskiyou 11 mi WNW of Yreka at Deadwood Lookout 1707 Comment
  CAS-BOT-BC46484  Arctostaphylos patula Wayne Roderick; Jacob Sigg 1981-8-23 s.n. Siskiyou Cook & Green Pass. 1371 Comment
  CAS-BOT-BC46489  Arctostaphylos patula Mrs. H. P. Bracelin 1931-6-21 460 Siskiyou N. side of Mt. Eddy above Dobkin's Lake. 2133 Comment
  JEPS38845  Arctostaphylos patula W. L. Jepson 1914-8-13 5787 Siskiyou Sisson 1097 Comment
  LA42233  Arctostaphylos patula William Bridge Cooke; 1939-8-4 sn Siskiyou Mount Shasta, along the Sisson Southern Trail 1523 Comment
  SEINET3106997  Arctostaphylos patula Steve Selva, Roger Jensen 1974-8-16 9 Siskiyou Dry, south facing Chaparral slopes above Sugar Lake. Comment
  UC1034044  Arctostaphylos patula W. Bridge Cooke 1941-8-21 16220 Siskiyou w side Shastina (n side of canyon); Mt. Shasta, Diller Canyon 2438 Comment
  POM131596  Arctostaphylos viscida subsp. viscida Edward L. Greene 1903-7-14 3519 Siskiyou Klamathon. Comment
  RSA639551  Arctostaphylos viscida subsp. viscida L. C. Wheeler 1952-9-21 6949 Siskiyou [No location data on label.] Comment
  SEINET11942772  Arenaria congesta H. P. Chandler 1901-1 1674 Siskiyou Marble Mountains 2438 Comment
  JEPS80541  Arenaria congesta var. congesta Gilbert Muth 1965-8-16 225 Siskiyou Slopes behind Black Mountain Marble Mountain Wilderness Area, Black Mountain, Boreal mead 1950 Comment
  JEPS51409  Arenaria congesta var. suffrutescens Geo. D. Butler 1908-8-3 51 Siskiyou Log Lake 1371 Comment
  POM163880  Arenaria congesta var. suffrutescens E. B. Copeland 1903-8-18 3908 Siskiyou Mt. Eddy. 2073 Comment
  RSA237360  Arenaria congesta var. suffrutescens Frederick W. Oettinger 1967-6-24 114 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
  HSC97653  Arenaria serpyllifolia Juha Pykala, D. H. Norris 1987-6-26 2088 Siskiyou Marble Mtn. Wilderness Area, 0-3 km below Bear Lake, above Bear Creek 1200 Comment
  HSC60849  Arenaria serpyllifolia Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  HSC61111  Arnica amplexicaulis Ruby Van Deventer 1955-8-5 Siskiyou Doe Flat; Forest Service Road 17N04, 1 mi. N of Doe Flat camp Comment
  RSA78690  Arnica cernua Philip A. Munz 1952-7-2 17879 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1493 Comment
  UC1192153  Arnica chamissonis Herbert L. Mason 1948-7-18 13608 Siskiyou Grass Lake Comment
  CAS-BOT-BC82250  Arnica chamissonis A. A. Heller 1938-7-13 15270 Siskiyou about a mile south of Bray Comment
  UC1540129  Arnica dealbata Dean W. Taylor 1987-6-26 9071 Siskiyou 2 mi w Medicine Lake (on the sw side of Little Mount Hoffman near summit); Little Mount Hoffman 2209 Comment
  CAS-BOT-BC82661  Arnica latifolia Doris K. Kildale 1928-8-19 6549 Siskiyou Hancock Lake, on trail to Marble Mt. Comment
  CAS-BOT-BC82667  Arnica latifolia John Thomas Howell 1937-7-22 13269 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  SEINET516276  Arnica longifolia Vernon H. Oswald 1997-7-28 8790 Siskiyou SE of Medicine Lake at Paynes Springs. 1981 Comment
  HSC22149  Arnica mollis J. O. Sawyer 1969-8-4 1809 Siskiyou Above Sugar Lake 2134 Comment
  UCD77358  Arnica mollis Robert E. Preston 2001-7-20 1693 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W ne 1/4 of se 1/4 Section 14 1755 Comment
  SEINET5712781  Arnica mollis J. M. Tucker 1974-1 4322 Siskiyou Haypress Meadows, Marble Mountain Wilderness Area.; Marble Mountain Wild. Area 1463 Comment
  UC1190275  Arnica nevadensis Ira L. Wiggins 1955-7-27 13562 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  UC75810  Arnica nevadensis Milo S. Baker 1898-8-1 502 Siskiyou Medicine Lake Comment
  CAS-BOT-BC85064  Arnica parryi Gilbert Muth 1966-7-31 476 Siskiyou Damp rocky areas, north side of Black Mountain, Marble Mts. 2057 Comment
  JEPS32671  Arnica viscosa Paul C. Hutchison 1962-8-2 938 Siskiyou between Panther Meadow and top of ski lift Mt. Shasta 2895 Comment
  SEINET5712658  Artemisia campestris subsp. borealis J. M. Tucker, L. K. Mann; Sandra L. Holloway 1963-1 3750 Siskiyou Southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area.; Marble Mountain Wild. Area 2134 Comment
  CAS-BOT-BC90482  Artemisia douglasiana A. A. Heller 1914-8-25 11710 Siskiyou Along the railroad embankment near Deetz Station opposite Black Butte 1158 Comment
  CHSC71849  Artemisia douglasiana Vernon H. Oswald; Lowell Ahart 1998-9-8 9602 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir. 1112 Comment
  JEPS94078  Artemisia douglasiana Vernon H. Oswald and Lowell Ahart 1998-9-8 9602 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi. w. of Mosquito Lake and Whitehorse Flat Reservoir 1112 Comment
  SEINET6775399 Image available Artemisia douglasiana G. D. Butler 1910-7-29 1798 Siskiyou Yreka Comment
  CAS-BOT-BC93762  Artemisia furcata K. T. Stillman 1976-7-9 220 Siskiyou Scott Bar quad. Marble Mountain Wilderness Area 2133 Comment
  RSA417442  Artemisia ludoviciana M. B. Dunkle 1945-08 9292 Siskiyou Klamath Nat'l Forest, Marble Mountains Comment
  UC710445  Artemisia michauxiana John Thomas Howell 1939-8-8 15177 Siskiyou Black Mt. Marble Mts., Black Mt. Comment
  CAS-BOT-BC97420  Artemisia tridentata subsp. tridentata W. R. Dudley 1899-8-24 s.n. Siskiyou Top of Craggy Peak Comment
  JEPS94848  Artemisia tridentata subsp. tridentata Vernon H. Oswald and Lowell Ahart 1998-9-16 9629 Siskiyou near the junction of Meiss Lake-Sams Neck Rd. and Hwy. 97 (ca 5 mi n of Macdoel); Butte Valley National Grassland 1295 Comment
  CAS-BOT-BC447711  Aruncus dioicus var. vulgaris Edward Lee 1934-8-11 1031 Siskiyou Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 609 Comment
  CAS-BOT-BC447712  Aruncus dioicus var. vulgaris Edward Lee 1934-8-11 1031 Siskiyou Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 609 Comment
  JEPS74415  Asarum caudatum W. B. & V. G. Cooke 1974-8-21 49263 Siskiyou Howard, Mt. Shasta 1219 Comment
  UC164123  Asclepias cordifolia Geo. D. Butler 1910-5-23 1396 Siskiyou Humbug Mountain 1219 Comment
  SEINET10580356  Asclepias cordifolia F. Marion Ownbey, Fred G. Meyer 1940-7-6 Ownbey 2202 Siskiyou Marble Mountain, Cayene Ridge, S slopes Comment
  SEINET10637017  Asclepias fascicularis George D. Butler 1910-6-29 Butler 1613 Siskiyou Near Yreka Comment
  CHSC33056  Asclepias speciosa J. P. Smith; Steve Selva 1970-6-16 4085 Siskiyou Immediately west of Sawyers Bar. Comment
  RSA401106  Asclepias speciosa B. C. Templeton 1957-6-23 s.n. Siskiyou North of Callahan on Hwy. 3 Comment
  CAS-BOT-BC69552  Aspidotis densa Ira L. Wiggins 1955-7-27 13533 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area. 2042 Comment
  RSA331955  Aspidotis densa Dave Kelly, Walter Wisura 1985-7-31 4081 Siskiyou Near Kangaroo Lake, Scott Mountain, on granitic rocks near campgrounds Comment
  UC1190384  Aspidotis densa Ira L. Wiggins 1955-7-27 13533 Siskiyou Caribou Lake; Salmon-Trinity Alps Primitive Area 2042 Comment
  UC1282034  Aspidotis densa Louise Kellogg Aug 5 1953-Aug 7 1953 103 Siskiyou 1 mi n Cory Peak (11 mi e of Callahan on rd to Gazelle, then s 5.8 mi on logging rd, Cabin Meadow); Scott Mts, Klamath Nat'l Forest 1844 Comment
  RSA238706  Aster foliaceus var. parryi Frederick W. Oettinger 1968-8-3 375 Siskiyou Between Diamond Lake and Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  CAS-BOT-BC178810  Astragalus californicus R. C. Barneby 1954-5-16 11510 Siskiyou Klamath R. canyon 10 1/2 miles below Klamath River P.O. 472 Comment
  RSA94040  Astragalus californicus R. C. Barneby 1954-5-16 11516 Siskiyou Klamath River canyon 1/2 miles below Hamburg. 457 Comment
  CHSC91240  Astragalus filipes Lowell Ahart; John Dittes 2005-6-10 12092 Siskiyou Rocky hillside, north of the rock fence, about 150 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CAS-BOT-BC182966  Astragalus filipes Milo S. Baker 1957-6-16 13150 Siskiyou Trip to Scott Mts. from Turn off near Callahan, area 5-6 mi beyond Turn off Comment
  CAS-BOT-BC186919  Astragalus inversus John Thomas Howell 1934-7-4 12388 Siskiyou SE. corner of Siskiyou Co. Comment
  UC83718  Astragalus lentiginosus var. chartaceus Katharine Brandegee July 1887 Siskiyou Montagne Comment
  CAS-BOT-BC192916  Astragalus purshii var. lectulus Copeland 1903-7-6 3557 Siskiyou Hornbrook Comment
  HSC101156  Astragalus purshii var. lectulus Dana York 2011-8-12 3050 Siskiyou Klamath National Forest, Marble Mountain ridge 2058 Comment
  HSC39321  Astragalus purshii var. tinctus J. P. Smith 1974-5-26 7385 Siskiyou Along FS Rd. 47N03 1524 Comment
  RSA110924  Astragalus purshii var. tinctus R. C. Barneby 1954-5-16 11515 Siskiyou Scott Road, 10.5 miles below Fort Jones 1006 Comment
  RSA293199  Astragalus purshii var. tinctus J. P. Smith 1973-5-5 6530 Siskiyou Scott Bar along the Scott River. Comment
  CAS-BOT-BC198717  Astragalus whitneyi var. siskiyouensis G. J. Muth 1969-8-7 1258 Siskiyou Boulder Peak Ridge 2468 Comment
  CAS-BOT-BC198718  Astragalus whitneyi var. siskiyouensis L. E. Smith 1913-7-2 448 Siskiyou Rainbow Comment
  CDA26765  Astragalus whitneyi var. siskiyouensis T. C. Fuller 1960-6-29 4643 Siskiyou Scott Mountain Road, 4.2 miles south of Callahan. 0 Comment
  RSA415402  Astragalus whitneyi var. siskiyouensis M. B. Dunkle 1944-7-18 9127 Siskiyou Siskiyou National Forest. 1890 Comment
  HSC27968  Asyneuma prenanthoides Carl W. Mize 1972-8-17 103 Siskiyou S of Gates Creek 488 Comment
  HSC41795  Asyneuma prenanthoides Brent Whiteley 1975-6-22 37 Siskiyou Klamath National Forest along Hwy. 96 near Somes Bar. 220 Comment
  CAS-BOT-BC68702  Athyrium alpestre var. americanum Ira L. Wiggins 1955-7-27 13567 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA331952  Athyrium americanum W. Wisura, Dave Kelly 1985-7-31 4084 Siskiyou Mt. Shasta, end of Everitt Memorial Hwy, in Rocky Ravin. Comment
  SBBG54353  Athyrium distentifolium var. americanum D. Copeland 1903-8-16 3917 Siskiyou Mt Shasta 2377 Comment
  HSC22158  Athyrium filix-femina var. cyclosorum J. O. Sawyer 1969-7-23 1176 Siskiyou Along road near Horse Range Creek. 1341 Comment
  HSC39745  Athysanus pusillus J. O. Sawyer 1970-4-4 2090 Siskiyou Along Sugar Creek 823 Comment
  UCR64451  Atriplex rosea L. C. Wheeler 1934-10-21 03339 Siskiyou Shasta Valley, 8 mi NE of Gazelle 869 Comment
  CHSC72233  Atriplex triangularis Vernon H. Oswald 1998-9-16 9650 Siskiyou Tour Route at Lower Klamath NWR 3 mi south of Hwy. 161. 1243 Comment
  CAS-BOT-BC100056  Balsamorhiza lanata Geo. D. Butler 1910-4-9 1157 Siskiyou hill near Yreka Comment
  CAS-BOT-BC100059  Balsamorhiza lanata Alice Eastwood; John Thomas Howell 1936-6-13 2749 Siskiyou 6 miles n. of Weed Comment
  RSA59494  Balsamorhiza sagittata E. K. Balls 1950-5-17 14718 Siskiyou By New Lava Flow, on rd. to Capt. Jack's Stronghold. Lava Beds Nat'l Monument. 1585 Comment
  CAS-BOT-BC16688  Barbarea orthoceras D. E. Breedlove 1962-6-11 3353 Siskiyou Marble Mountains. About 20 miles west of Fort Jones. Canyon Creek. 914 Comment
  RSA237403  Barbarea orthoceras Frederick W. Oettinger 1968-8-23 620 Siskiyou Due west of English Lake; Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  UCD114283  Barbarea orthoceras A. H. Murphy 1953-7-28 KNF 7 Siskiyou Long Gulch Camp, Siskiyou-Trinity County. 1889 Comment
  UC718153  Berberis aquifolium var. aquifolium Carl B. Wolf 1934-7-5 5973 Siskiyou 7 mi from Oak Knoll Ranger Station (on Klamath River, on rd to Dry Lake Lookout); Siskiyou Mts 1371 Comment
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Mar 29 2012
  UC796540  Berberis aquifolium var. aquifolium Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11814 Siskiyou at Mule Creek croosing of Scott Mt Rd 1524 Comment
  JEPS47705  Berberis aquifolium var. dictyota Geo. D. Butler 1909-4-20 591 Siskiyou along creek near Yreka Comment
  HSC41073  Berberis aquifolium var. repens J. O. Sawyer 1970-3-4 2076 Siskiyou N of Idlewild Campground. 762 Comment
  UC1483425  Berberis nervosa John Palmer 1980-8-15 980 Siskiyou ne of Seiad Low Gap (on spur of F.S. Rd 46N50); Seiad Valley Quadrangle 1097 Comment
  CHSC110645  Betula occidentalis Julie Kierstead Nelson; Rhonda Posey, Peter Zika, Talitha Derksen 2012-6-21 2012 -058 Siskiyou South Fork Willow Creek, foothills of N side of Scott Mountain. Rd. 42N19 Sec. 30; ca 1 mile S of Gazelle-Callahan Hwy. 1158 Comment
  UC1076038  Betula occidentalis Herbert L. Mason 1947-5-15 14754 Siskiyou nw Edgewood Comment
  UC726782  Betula occidentalis A. A. Heller 1918-7-16 13036 Siskiyou Mt. Eddy 1524 Comment
  CAS-BOT-BC413074  Bistorta bistortoides D. E. Breedlove 1962-6-11 3370 Siskiyou Along State Hwy. 89, 17.6 miles east of McCloud; Cascade Mts. 1219 Comment
  CAS-BOT-BC413081  Bistorta bistortoides Gilbert Muth 1966-8-1 481 Siskiyou Marble Valley Horse Pasture, Marble Mts. 1792 Comment
  CAS-BOT-BC413082  Bistorta bistortoides Frank W. Gould 1940-5-14 1227 Siskiyou Bull Meadow, Goosenest Mountain 1524 Comment
  UC166059  Blepharipappus scaber Geo. D. Butler 1910-5-17 1355 Siskiyou Yreka Comment
  CAS-BOT-BC15927  Boechera arcuata Reed Rollins 1938-6-17 11051 Siskiyou Mount Shasta. Sisson Southern Trail 1371 Comment
  CAS-BOT-BC16028  Boechera breweri subsp. breweri L. E. Smith 1913-6-2 331 Siskiyou Klamath River. Comment
  SEINET3132245  Boechera breweri subsp. shastaensis G. D. Butler 1910-5-21 1379 Siskiyou Klamath River. Comment
  CHSC102558  Boechera howellii L. P. Janeway 2009-8-3 9885 Siskiyou High Cascade Range. Mt. Shasta, east-northeast slope 1.3 air km southwest of Brewer Creek Trailhead; about 0.3 km south of Brewer Creek. 2560 Comment
  JEPS40879  Boechera howellii Paul C. Hutchison 1962-8-2 942 Siskiyou between top of ski lift and Panther Meadow; Mt. Shasta 2743 Comment
  UC136187  Boechera howellii Dr. E. B. Copeland 1903-8-16 3914 Siskiyou Mt. Shasta 2438 Comment
  UC455728  Boechera platysperma I. J. Condit 1911-7-22 Siskiyou Horse Camp Mt. Shasta 2438 Comment
  CAS-BOT-BC25608  Boechera retrofracta Reed Rollins 1940-7-26 15365 Siskiyou Mount Shasta. Along Diller Canyon. 1828 Comment
  UCD77349  Boechera retrofracta Robert E. Preston 2002-7-14 1940 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 1716 Comment
  CAS-BOT-BC438786  Boechera rollei Dana York 2012-7-21 3129 Siskiyou Klamath/Siskiyou Mts. Rogue River - Siskiyou National Forest, Siskiyou Mountains, ridge above Echo Lake. 1790 Comment
  SEINET3166095  Boechera rollei P. J. Alexander 2008-7-24 873 -C Siskiyou On the Pacific Crest Trail +-0.7 miles SSW of Cook & Green Pass, +-1.9 miles E of Red Butte, +-7miles NNE of Seiad Valley, Siskiyou Mountains, Rogue River National Forest. 1606 Comment
  SEINET10627096 Image available Boechera rollei W. E. Rolle 1983-8-4 Rolle 831 Siskiyou Open places on sparsely forested slopes, peridotite rocks and soil derived and Klamath rivres, Red Butte-Kangaroo Mt.-Lilypad Lake- Towhead Lake region, T47N R12W, Sec. 13. 1646 Comment
  JEPS74518  Boykinia major W. J. Ferlatte 1966-8-3 289 Siskiyou Josephine Lake Basin; Trinity Alps, Josephine Lake basin 1676 Comment
  UCD102599  Boykinia major John M. Tucker; D. V. Hemphill 1974-7-28 4332 Siskiyou 1 mile south of Haypress Meadows, between trail to Camp 4, Marble Mountain Wilderness Area. 1463 Comment
  HSC86545  Boykinia major D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  JEPS18783  Brickellia californica Geo. D. Butler 1909-9-20 948 Siskiyou along creek near Yreka Comment
  RSA211768  Brickellia californica L. C. Wheeler 1934-9-15 3264 Siskiyou Walker, Klamath River, Siskiyou Mts. (Mt. Diablo Mer.) 518 Comment
  JEPS111015  Brickellia grandiflora J. K. Nelson with J. R. and Soren Nelson 2004-8-29 2004 -96 Siskiyou South side Mt. Shasta, south side of McKenzie Butte, along Road 31 1584 Comment
  RSA610985  Brickellia greenei L. C. Wheeler 1952-9-18 6248 Siskiyou Siskiyou Mountains: South Fork Indian Creek, near Happy Camp. Comment
  SEINET10514368  Briza maxima A. Arthur Heller 1905-6-20 Heller 8075 Siskiyou Gazelle. Comment
  UCD77173  Brodiaea coronaria Robert E. Preston 2002-6-22 1882 Siskiyou Ca. 0.6 miles SW of Cayton, on W side of Hwy 89. 958 Comment
  UC144809  Bromus briziformis A. A. Heller 1905-6-20 8075 Siskiyou Gazelle Comment
  CDA31385  Bromus carinatus var. carinatus T. C. Fuller 1958-6-19 1801 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  CHSC61559  Bromus carinatus var. carinatus L. P. Janeway 1983-9-11 683 Siskiyou Siskiyou Mountains; at Poker Flat. In the middle of the lower part of the meadow. 1524 Comment
  HSC102714  Bromus diandrus J. P. Smith 2013-6-18 13747 Siskiyou Camp Creek Recreation Area. 723 Comment
  HSC43470  Bromus hordeaceus Maralyn O'Meara 1974-5-25 381 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  CHSC88408  Bromus japonicus Jenny Marr 1993-7-1 167 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS107456  Bromus japonicus Lowell Ahart, John Dittes 2005-6-9 12009 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
  RSA239066  Bromus marginatus Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1154 Siskiyou above Sundew Bog; English lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 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
  SACT000689  Bromus sterilis Isabelle Kimber 1934-6-9 Siskiyou Abundant but thin stand. Chaparral. Comment
  CAS-BOT-BC185604  Bromus tectorum A. A. Heller 1916-6-20 12405 Siskiyou Metcalf's Ranch, northeast base of Mount Eddy. 1188 Comment
  HSC30543  Bromus tectorum Frederick W. Oettinger 1969-8-18 1432 Siskiyou Marble Mtn. Wilderness Area, NE of Horse Range Lake 1860 Comment
  POM363990  Bromus tectorum M. B. Dunkle 1945-7-19 9233 Siskiyou Klamath National Forest. Marble Mts. Marble summit, Marble rim trail. Comment
  UC164911  Bromus tectorum Geo. D. Butler 1909-5-21 816 Siskiyou near Yreka Comment
  UC816445  Bromus tectorum Alice Eastwood 1912-7-17 1126 Siskiyou McCloud Comment
  HSC69362  Calamagrostis breweri Maralyn A. Renner 1980-8-19 2506 Siskiyou S side of Caribou Lake 2104 Comment
  HSC31105  Calamagrostis canadensis var. langsdorffii Frederick W. Oettinger, R. F. Thorne 1969-8-4 1172 Siskiyou Salmon Mountains, Tobacco Lake, upper meadow 1890 Comment
  CHSC36415  Calamagrostis koelerioides Donald M. Burk 1981-7-26 65 Siskiyou East side of Castle Lake. 1706 Comment
  HSC22197  Calamagrostis koelerioides J. O. Sawyer 1968-7-9 419 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  HSC27333  Calamagrostis koelerioides J. P. Smith, J. O. Sawyer, M. O'Mera 1972-7-3 5711 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  CAS-BOT-BC85775  Calocedrus decurrens C. B. Wolf; E. R. Johnson 1934-10-8 6168 Siskiyou Modoc Lava Beds, 14.3 mi. E. of Fall River on rd. from Dana to Little Hot Springs Valley 1219 Comment
  UC401353  Calocedrus decurrens Geo. D. Butler 1908-11-1 547 Siskiyou Quartz Valley Comment
  RSA68949  Calochortus coeruleus A. E. Culbertson 1943-6-19 9 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mtns., 2000 above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  JEPS109666  Calochortus elegans Dean W. Taylor 2002-6-29 18206 Siskiyou ridge ca. 0.5 mile SW of Kanagroo Lake, Scott Mountains 1981 Comment
  CAS-BOT-BC488615  Calochortus elegans var. nanus A. A. Heller 1906-6-15 s.n. Siskiyou Near Sisson Comment
  CDA39290  Calochortus elegans var. nanus T. R. Haig & F. D. Horn 1978-5-31 s.n. Siskiyou Site of Deadwood Lookout, Fort Jones. 0 Comment
  SEINET10469586 Image available Calochortus elegans var. nanus F. Marion Ownbey, Ruth P. Ownbey 1938-7-19 Ownbey 1748 Siskiyou 2 1/2 miles northest of Dry Lake Lookout, summit of Siskiyou Mts. Loose, somewhat rocky soil, open slopes. Comment
  UC1478044  Calochortus longebarbatus var. longebarbatus Jeff Prouty and Heinitz 1980-7-9 1129 Siskiyou 2 mi nw Pondosa; Shasta-Trinity National Forest, Tom Young Flat 1280 Comment
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Apr 18 2012
  CHSC71511  Calochortus macrocarpus Vernon H. Oswald; Lowell Ahart 1998-7-21 9321 Siskiyou Hwy. 97 at the 11.0 mi mile marker 1.2 mi west of A12 northeast of Weed. 1188 Comment
  CHSC67731  Calochortus nudus J. D. Jokerst 1983-6-6 1832 Siskiyou At Tom Young Flat. Comment
  SEINET8273312  Calochortus nudus Frank Callahan 2007-7-5 Siskiyou Methodist Camp Meadows above or west of Scott Camp Creek. 1483 Comment
  CAS-BOT-BC132652  Calochortus uniflorus Mrs. H. P. Bracelin 1931-6-20 441 Siskiyou Northeast slope of Mt. Eddy, Wagon Creek Canyon 1188 Comment
  RSA0120951  Caltha biflora Frederick W. Oettinger 1968-8-3 379 Siskiyou Base of camp meadows, Diamond Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  CAS-BOT-BC167236  Caltha leptosepala R. C. Wenk 2008-7-24 919 A Siskiyou Kangaroo Lake, south of the Gazelle-Callahan Rd. 1851 Comment
  HSC43363  Caltha leptosepala N. G. Sugihara 1977-5-28 63 Siskiyou Bank of Haypress Creek 100 yds. upstream from edge of Haypress Meadow 1463 Comment
  UCD95573  Caltha leptosepala John M. Tucker; D. V. Hemphill 1974-7-27 4308 Siskiyou Beside Haypress Creek, a short distance downstream from Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  RSA255552  Calycadenia ciliosa Gerald D. Carr 1974-9-12 783 Siskiyou 0.4 miles east of Somesbar on Etna-Somesbar Road Comment
  JEPS24807  Calycadenia fremontii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6816 Siskiyou 7 mi e Callahan 1127 Comment
  UCD129758  Calycadenia fremontii Gerald D. Carr 1974-9-12 783 Siskiyou 0.4 mile east of Somebar on Etna-Somebar Road. Comment
  JEPS30008  Calycadenia truncata Geo. D. Butler 1908-8-29 320 Siskiyou in Scott Valley, ne sector of T43N R9W S17 Scott Valley Comment
  HSC58959  Calyptridium monospermum Gilbert Muth 1976-7-26 Siskiyou Near Poker Flat, close to the town of Happy Camp 1561 Comment
  HSC77032  Calyptridium monospermum K. T. Stillman 1976-6-17 12 Siskiyou Marble Mtn. Wilderness Area, head of Elk Valley 1768 Comment
  HSC77017  Calyptridium umbellatum K. T. Stillman 1976-6-25 36 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  CAS-BOT-BC221255  Calystegia malacophylla subsp. malacophylla A. A. Heller 1919-6-27 13280 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC497584  Camassia quamash subsp. breviflora Geo. D. Butler 1909-6-22 890 Siskiyou Goosenest foothills Comment
  CDA39273  Camassia quamash subsp. quamash T. C. Fuller 1962-6-13 8994 Siskiyou South side of Highway 89 to Lake Britton, 0.5 mile east of Bartle. 0 Comment
  HSC6614  Camelina microcarpa L. C. Wheeler 1934-6-10 2672 Siskiyou Siskiyou Mtns., Hungry Creek 1098 Comment
  SEINET3142707  Campanula prenanthoides G. D. Butler 1910-8-7 1815 Siskiyou Humbug Mountain 1219 Comment
  UC220935  Campanula prenanthoides Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2511 Siskiyou Mt. Shasta and vicinity Comment
  POM299525  Campanula prenanthoides Marion Ownbey, Fred G. Meyer 1940-7-4 2171 Siskiyou Siskiyou Mts. Northwest of Hornbrook. Comment
  RSA456183  Campanula prenanthoides M. B. Dunkle 1944-7-15 9097 Siskiyou Siskiyou Natl. Forest Comment
  SEINET10463153  Campanula prenanthoides John T. Witherspoon 1977-8-10 Witherspoon s.n. 1977 Siskiyou 2 miles up Forest Service road 12N13 West of Bald Butte. T12N R6E Sec. 11 610 Comment
  SEINET10463177  Campanula prenanthoides Heckard 1969-7-25 HECKARD 2313 Siskiyou NR FALL CREEK INN ALONG GILMAN RD., BTWN SACRAMENTO & MCCLOUD ARMS OF SHASTA LAKE, 1300 Comment
  HSC91393  Campanula rotundifolia Jennifer Whipple 1976-7-24 1556 Siskiyou Mt. Eddy, SW of Dobkins Lake 2256 Comment
  SEINET10463435  Campanula scouleri A. Arthur Heller 1915-7-18 Heller 12106 Siskiyou METCALF'S RANCH, NE BASE OF MT EDDY, MOIST SOIL 1189 Comment
  SEINET10872957  Campanula scouleri Louis Krautter 1905-7-7 Krautter s.n. Siskiyou NEAR SISSON, DENSE WOODS 1067 Comment
  SEINET10939071  Campanula scouleri Rimo Bacigalupi, Lincoln Constance; Lawrence R. Heckard 1960-7-20 Bacigalupi 7453 Siskiyou Along Del Norte-Siskiyou County boundary (ridge top) dividing Indian Creek drainage from that of the Illinois River -- leading to Twin Valley 1585 Comment
  CAS-BOT-BC266464  Campanula wilkinsiana W. B. C. 1939-8-24 13894 Siskiyou Mount Shasta. Along the creeks in Squaw Creek meadows Comment
  SEINET10463887  Campanula wilkinsiana Cooke 1947-8-20 COOKE 17822 Siskiyou Common in the meadow area around the water supply spring above Harse Camp, Mount Shasta 2515 Comment
  SEINET10840066  Campanula wilkinsiana Cooke 1938-8-18 COOKE 11447 Siskiyou Mount Shasta; common around the water supply spring turf above Horse Camp 2469 Comment
  SEINET10972125  Campanula wilkinsiana Cyrus G. Pringle 1881-8-24 Pringle s.n. Siskiyou Mount shasta 2134 Comment
  CAS-BOT-BC37193  Capsella bursa-pastoris Doris K. Kildale 1929-5-31 9166 Siskiyou Cecilville. South Fork Salmon River. Comment
  HSC68475  Cardamine californica Maralyn A. Renner 1980-6-26 1218 Siskiyou SE edge of Flint Valley. 1390 Comment
  UC375296  Cardamine californica Geo. D. Butler 1909-4-11 649 Siskiyou Shasta Springs Comment
  RSA120643  Cardaria draba Milo S. Baker 1955-6-27 13089 Siskiyou Scott Valley 1 mile N of Callahan. Comment
  CAS-BOT-BC19770  Carex abrupta R. Tallent 1987-8-16 941 Siskiyou Mount Shasta Area. Panther Meadows Trailhead Area. 2220 Comment
  RSA237333  Carex abrupta Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1249 Siskiyou Pine Lake Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC1738777  Carex amplifolia Dean W. Taylor 1993-7-30 13986 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 miles east of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
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Feb 9 2009
  CAS-BOT-BC17894  Carex angustata W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Mountain. Comment
  CAS-BOT-BC17969  Carex angustata George Dexter Butler 1909-6-22 855 Siskiyou Goosenest foothills. Comment
  SD123678  Carex angustata Robert T. Clausen, Harold Trapido 1940-7-26 4956 Siskiyou Southern Cascade Mountains; Mt. Shasta; Sacramento River Basin; boggy meadow; wagon camp. 1737 Comment
  CAS-BOT-BC17964  Carex angustata W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow near Sissons. Comment
  SEINET11309953 Image available Carex atherodes Unknown 2009-1 24601 Siskiyou North side of Route 97, 0.4 road miles ENE of Grass Lake Rest Area, Cascade Range Highlands (CaRH). Comment
  SEINET8258306  Carex aurea Elmer I. Applegate 1895-5-28 779 Siskiyou Sisson, Strawberry Valley, Siskiyou County Comment
  JEPS63754  Carex barbarae W. L. Jepson Jul 1894 57 a Siskiyou Sisson Comment
  CAS-BOT-BC19559  Carex bolanderi A. A. Heller 1905-6-13 8025 Siskiyou Near Shasta Springs. Along the railroad just above Shasta Springs. Comment
  HSC39311  Carex bolanderi J. O. Sawyer 1969-7-11 866 Siskiyou Ravine above C.C.C. road. 1280 Comment
  CAS-BOT-BC31047  Carex bolanderi William Bridge Cooke 1940-8-2 15404 Siskiyou Mt Shasta, Along the creeks at Bear Springs. 1524 Comment
  RSA237237  Carex brainerdii Frederick W. Oettinger 1969-8-3 1146 Siskiyou Hot slope above English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CHSC102554  Carex breweri L. P. Janeway 2009-8-4 9900 Siskiyou High Cascade Range. Mt. Shasta, north slope 3.7 air km south-southwest of Brewer Creek North Gate Trailhead. 2783 Comment
  HSC76384  Carex concinnoides L. P. Janeway 1982-6-22 21 Siskiyou 400 m NE of West Branch Guard Station near road to Indian Creek, 15 m below road, near creek 671 Comment
  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
  HSC85830  Carex echinata subsp. echinata L. P. Janeway 1983-7-31 473 Siskiyou Poker Flat, upper portion of meadow. 1524 Comment
  HSC33307  Carex fracta William J. Ferlatte 1974-7-15 1535 Siskiyou Yellow Rose Mine Trail 1555 Comment
  CAS-BOT-BC22296  Carex hassei John Thomas Howell 1937-7-23 13334 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC28082  Carex hoodii John Thomas Howell 1937-7-25 13484 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  HSC85843  Carex hoodii L. P. Janeway 1983-8-26 608 Siskiyou Poker Flat, across road on N side of meadow 1524 Comment
  UCD140450  Carex hoodii Wm. E. Moon 1958-5-29 s.n. Siskiyou State Hwy. 97, southwest of Hebron Summit. 1524 Comment
  RSA0091009  Carex inops subsp. inops Dean Wm. Taylor 2004-7-20 19194 Siskiyou Mt. Shasta, slopes ca. 0.3 air mile E of Mud Creek dam. 1524 Comment
  HSC103665  Carex integra Thomas W. Nelson, Jane Nelson 1984-7-28 7700 Siskiyou Along west side of Gumboot Lake 1860 Comment
  JEPS100906  Carex interior Dean W. Taylor 1988-7-8 9936 Siskiyou Gumboot Lake, headwaters South Fork Sacramento River 1950 Comment
  HSC39255  Carex laeviculmis J. O. Sawyer 1968-7-10 511 Siskiyou On Sugar Creek just above confluence with S Sugar Creek 1707 Comment
  UC826561  Carex laeviculmis John Thomas Howell 1939-8-3 14964 Siskiyou Spirit Lake Marble Mts. 1828 Comment
  HSC76813  Carex laeviculmis L. P. Janeway 1982-6-25 23 Siskiyou 300 m. SE of No Mans Creek, 600 m. up Creek from the Clear Creek Rd. 610 Comment
  JEPS109283  Carex lemmonii D. W. Taylor 2005-7-14 19407 Siskiyou Mount Shasta, Bear Spring, Big Canyon Creek drainage. Comment
  CAS-BOT-BC28427  Carex lenticularis var. lipocarpa Doris K. Kildale 1928-8-19 6555 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  HSC29638  Carex lenticularis var. lipocarpa Frederick W. Oettinger 1968-9-9 801 Siskiyou Marble Mtns. Wilderness Area, Tom's Lake, lower meadow 2012 Comment
  CAS-BOT-BC31435  Carex leporinella Louis C. Wheeler 1934-8-9 3087 Siskiyou Jaynes Canyon. 1981 Comment
  HSC99657  Carex luzulina Jennifer Whipple 1976-7-2 1248 Siskiyou Slopes and meadows near Durney Lake, along stream draining lake 2073 Comment
  UCD140536  Carex luzulina J. M. Tucker 1950-7-23 1944 Siskiyou Panther Meadows, Mount Shasta. 2407 Comment
  UC642548  Carex luzulina var. luzulina W. Bridge Cooke 1939-6-23 13548 Siskiyou Wagon Camp 1737 Comment
  HSC62586  Carex mertensii Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  CAS-BOT-BC32050  Carex multicaulis John Thomas Howell 1937-7-26 13556 Siskiyou Caribou Gulch Comment
  CHSC96015  Carex multicaulis L. P. Janeway 2006-7-4 8800 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. 1838 Comment
  HSC36157  Carex multicaulis J. P. Smith 1974-5-26 7553 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC45959  Carex multicaulis J. P. Smith 1973-5-5 6418 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC76788  Carex multicaulis L. P. Janeway 1982-8-21 169 Siskiyou Old dirt road between Poker Flat and Twin Valley, near Twin Valley 1463 Comment
  RSA610010  Carex multicaulis L. C. Wheeler 1935-6-9 3558 Siskiyou Yreka Creek, Siskiyou Mountains. 1220 Comment
  HSC9  Carex multicostata William J. Ferlatte 1966-6-22 115 Siskiyou Josephine Lake Basin 1677 Comment
  HSC100085  Carex nardina Dana York 2011-8-13 3059 Siskiyou Klamath National Forest, Slopes of Black Mountain. 2105 Comment
  CAS-BOT-BC119680  Carex nervina William Bridge Cooke 1939-6-23 13547 Siskiyou Wagon Camp sedge swamp. 1737 Comment
  CAS-BOT-BC119479  Carex nudata Alice Eastwood; John Thomas Howell 1937-6-26 5059 Siskiyou Near Forks of Salmon Comment
  CAS-BOT-BC119476  Carex nudata Louis C. Wheeler 1934-9-22 3296 Siskiyou Walker 518 Comment
  CAS-BOT-BC123135  Carex pachycarpa William Henry Brewer 1862-9-13 1398 Siskiyou Mount Shasta 2743 Comment
  SEINET8989728 Image available Carex pachystachya Unknown 2006-1 8717 Siskiyou Klamath Ranges. Salmon Mountains; just west of Carter Meadow north side of South Fork Salmon River. Deadman Peak 7.5 quad. Comment
  CHSC43907  Carex pellita L. P. Janeway 1984-6-21 855 Siskiyou South shore of Klamath River, near hwy 96 milepost 68.00 and 1.0 mi W of Hamburg and Mill Cr. 457 Comment
  CHSC106266  Carex praegracilis Lowell Ahart; John Dittes 2010-7-30 16953 Siskiyou About 50 yards west of the East Louie Road Bridge, about 30 yards west of the Shasta River, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  SEINET10708787  Carex praegracilis Louis C. Wheeler 1935-6-30 Wheeler 3631 Siskiyou Dry subsaline adobe flat. 3 mi. S. Grenada, Shasta Valley. 792 Comment
  CAS-BOT-BC118788  Carex preslii R. Tallent 1987-8-13 917 Siskiyou Klamath National Forest, Forest Rd 39N11, ca 1/2 way between hwy and Little Jackson Cr. 1645 Comment
  UC834554  Carex preslii John Thomas Howell 1939-8-9 15203 Siskiyou Sky High Valley Marble Mountians 1828 Comment
  CAS-BOT-BC118787  Carex preslii Rimo Bacigalupi 1959-7-10 7300 Siskiyou In meadow at Twin Valley, Siskiyou Mts., just E of Del North County line. 1493 Comment
  CAS-BOT-BC118795  Carex preslii William Bridge Cooke 1939-7-13 13636 Siskiyou Bottom of Horse Camp Creek. 2438 Comment
  RSA238934  Carex preslii Frederick W. Oettinger 1969-9-3 1620 a Siskiyou Shasta Ridge below English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  HSC67703  Carex rostrata John S. Palmer 1980-7-24 603 Siskiyou Elk Hole 1503 Comment
  CHSC71607  Carex scabriuscula Vernon H. Oswald 1998-8-3 9442 Siskiyou Near the Pacific Crest Trail in the Scott Mtns. west of Kangaroo Lake. 1981 Comment
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Dec 24 2010
  HSC76823  Carex scabriuscula L. P. Janeway 1982-8-13 125 Siskiyou 70 m N of Bear Lake at edge of seasonal channel 1814 Comment
  HSC39281  Carex scopulorum J. O. Sawyer 1969-8-5 1771 Siskiyou W of Little Duck Lake 2073 Comment
  SEINET3908064  Carex scopulorum K. Morris, Conrad; Dunn 1973-6-2 346 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy 263.; 0 Comment
  HSC96604  Carex scopulorum var. bracteosa Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-19 485 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SEINET7575204 Image available Carex serratodens David Castaner 1989-6-19 10241 Siskiyou Along Highway 3, between Callahan and Gazelle. Comment
  POM81963  Carex simulata Geo D. Butler 1910-6-5 1475 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC117251  Carex spectabilis John Thomas Howell 1937-7-25 13480 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CAS-BOT-BC117252  Carex spectabilis John Thomas Howell 1937-7-25 13478 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CHSC2107  Carex spectabilis N. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. 1828 Comment
  JEPS84068  Carex spectabilis L. R. Heckard with J. Hickman et al. 1986-7-17 6527 Siskiyou above and s Alex Hole (n of Hwy. 96); Buckhorn Campground Comment
  UC1147787  Carex spectabilis John Thomas Howell 1937-7-24 13432 Siskiyou Caribou Basin Salmon-Trinity Alps 1981 Comment
  HSC76307  Carex spectabilis L. P. Janeway 1982-8-15 150 Siskiyou SW side of Echo Lake 1677 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
  SEINET7575749 Image available Carex spectabilis Frederick W. Oettinger 1968-9-6 732 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness area, trail southeast of Tom's Lake. 2012 Comment
  HSC7173  Carex straminiformis J. T. Howell 1939-8-2 14908 Siskiyou Spirit Lake, Marble Mtns. 1829 Comment
  HSC30530  Carex subfusca Frederick W. Oettinger 1969-8-19 1464 Siskiyou Marble Mtn. Wilderness Area, between King David Peak and Abbotts Basin 1860 Comment
  CHSC40130  Carex utriculata L. P. Janeway 1982-7-2 38 Siskiyou At Poker Flat. At bottom of break between upper and lower portions of meadow. 1524 Comment
  HSC76828  Carex utriculata L. P. Janeway 1982-7-2 39 Siskiyou Poker Flat, end of FS Rd. 18N33 1524 Comment
  CAS-BOT-BC115165  Carex vesicaria James D. Jokerst 1983-7-5 1829 A Siskiyou Atkin's Meadow in a low lying area near the Lodgepole Pine Forest at the Meadow's NE corner. Comment
  UC2046025  Carex viridula var. viridula Barbara L. Wilson with Mary Vance 2004-7-16 11055 Siskiyou Approximately one mile by road north of Crater Creek, in the headwaters of an unnamed tributary of Mountain House Creek, in the Klamath National Forest. Comment
  UCD77467  Carex whitneyi Robert E. Preston 1996-7-22 971 Siskiyou between Blanche Lake and Bullseye Lake 2072 Comment
  SEINET12027445  Castanopsis chrysophylla M. Ownbey, Meyer, F. G. 1940-1 2222 Siskiyou along Indian Creek,11mi above Happy Camp Comment
  SEINET11262566  Castilleja applegatei James P. Smith 1974-5-27 7610 Siskiyou Copco Quad. Along Forest Service Road 47NO3.; 0 1280 Comment
  HSC76762  Castilleja applegatei subsp. pallida K. T. Stillman 1976-9-9 493 Siskiyou Ridge above Paradise Lake Comment
  HSC81582  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, Jane P. Nelson 1980-7-17 6086 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  RSA749205  Castilleja applegatei subsp. pinetorum K. M. Meyer, A. Townesmith 2007-8-2 182 Siskiyou Shasta-Trinity National forest. 0.1 mi. on Forest Service Rd. 43N21, 12.5 mi on Hwy. 97, east side of road 1218 Comment
  UC138771  Castilleja applegatei subsp. pinetorum Copeland 1903-8-14 3883 Siskiyou Sisson Comment
  SEINET13732872  Castilleja applegatei subsp. pinetorum G. D. Butler 1910-5-23 1388 Siskiyou Humbug Mountain. 1219 Comment
  CAS-BOT-BC243751  Castilleja applegatei var. pinetorum Doris K. Kildale 1928-7-2 5394 Siskiyou Salmon Summit via Horn Creek Trail 1981 Comment
  CAS-BOT-BC243767  Castilleja applegatei var. pinetorum Elmer I. Applegate 1935-6-6 9373 Siskiyou Crater of Caldwell Butte, Lava Beds National Monument Comment
  CAS-BOT-BC243768  Castilleja applegatei var. pinetorum Elmer I. Applegate 1935-6-6 9378 Siskiyou Hippo Butte, Lava Beds National Monument Comment
  CAS-BOT-BC243752  Castilleja applegatei var. pinetorum Doris K. Kildale 1929-6-22 8036 Siskiyou WEst base of Black Butte near Mt. Shasta Comment
  HSC69263  Castilleja arachnoidea J. O. Sawyer 1980-7-20 3734 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  JEPS16360  Castilleja arachnoidea Peter H. Raven 1956-9-4 10392 Siskiyou just s Mount Eddy 2438 Comment
  UC885274  Castilleja arachnoidea A. A. Heller 1914-8-28 11740 Siskiyou e side Mt. Eddy 2286 Comment
  RSA80047  Castilleja arachnoidea subsp. schizotricha J. T. Howell 1939-8-4 15043 Siskiyou Marble Rim, Marble Mts 1890 Comment
  CHSC86634  Castilleja lacera Jenny Marr 1993-7-1 17 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC254005  Castilleja miniata J. H. Thomas; H. A. Thomas 1954-7-25 4533 Siskiyou Salmon-Trinity Mts. Vicinity of Rush lake and Rush Creek meadow. About 9 miles E of Cecilville. 1981 Comment
  CAS-BOT-BC254115  Castilleja miniata Alice Eastwood 1912-7-17 s.n. Siskiyou Sisson Comment
  HSC19305  Castilleja miniata J. O. Sawyer 1968-9-9 648 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC29388  Castilleja miniata Frederick W. Oettinger 1968-8-6 424 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1951 Comment
  HSC61199  Castilleja miniata Al Hobart 1967-8-9 Siskiyou El Capitan Comment
  HSC61815  Castilleja miniata Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  HSC72404  Castilleja miniata J. P. Smith, Steve Selva 1970-7-17 4477 Siskiyou Below Kangaroo Lake. 1890 Comment
  JEPS84014  Castilleja miniata L. R. Heckard with J. Hickman et al. 1986-7-17 6509 Siskiyou n slope Condrey Mt. 1960 Comment
  RSA211403  Castilleja miniata William J. Ferlatte 1967-7-26 764 Siskiyou NW side of Caribou Mtn. Trinity Alps. 1829 Comment
  CHSC86625  Castilleja pilosa Jenny Marr 1993-7-1 8 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CHSC88113  Castilleja pilosa Jenny Marr 1993-7-1 123 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS23708  Castilleja pruinosa Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7211 Siskiyou 4.5 mi ne Weed 1066 Comment
  UC163702  Castilleja pruinosa Geo. D. Butler 1910-6-5 1516 Siskiyou Log Lake; Shackleford Creek Comment
  UC169089  Castilleja pruinosa Harley P. Chandler Jun 1901 1667 Siskiyou Marble Mountain; North Coast Ranges 2438 Comment
  RSA237563  Castilleja pruinosa Frederick W. Oettinger 1968-8-2 368 Siskiyou Northeast of Diamond Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2088 Comment
  SEINET10549442  Castilleja pruinosa Morris 1973-6-2 MORRIS 365 Siskiyou Found at the jct of shasta and klamath rivers on hwy 263. Comment
  UCD123031  Castilleja schizotricha J. M. Tucker; L. K. Mann 1963-8-18 3766 Siskiyou saddle between Marble Mountain and southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area. 2103 Comment
  JEPS66225  Castilleja tenuis T. I. Chuang and L. R. Heckard 1971-6-15 6924 Siskiyou 5.6 mi w U.S. Highway 97 (on Ball Mt. Road) 1584 Comment
  SBBG116569  Ceanothus arcuatus D. Wilken with E. Painter 2003-7-16 16153 Siskiyou near S Fk of Salmon River, near mouth of Butcher Gulch, ca. 6 linear km WNW of Cecilville 610 Comment
  JEPS42357  Ceanothus cordulatus W. L. Jepson Aug. 1894 14011 Siskiyou Sisson Comment
  CAS-BOT-BC49188  Ceanothus cuneatus W. R. Dudley 1905-7-7 s.n. Siskiyou Top Siskiyou Mountains Comment
  UC375368  Ceanothus integerrimus Geo. D. Butler Jun 22 1908-Jul 12 1908 411 Siskiyou Humphrey Mountain Comment
  UC80021  Ceanothus integerrimus M. K. Curran 1887-1 Siskiyou Siskiyou Mts. Comment
  HSC100190  Ceanothus prostratus J. P. Smith, & J. O. Sawyer 2011-9-4 13410 Siskiyou Montague- Ball Mountain-Little Shasta Road (County Road 7K007). 1192 Comment
  HSC40208  Ceanothus prostratus J. P. Smith 1976-5-21 8760 Siskiyou Klamath National Forest, USFS Rd. 40N08 6.2 mi from its junction with Hwy. 3 1463 Comment
  UC796434  Ceanothus prostratus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11737 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road w of Callahan 1066 Comment
  CDA35687  Ceanothus prostratus T. C. Fuller 1962-6-13 8973 Siskiyou Highway 89 to McCloud, 4.4 miles west of Bartle. 0 Comment
  UCSB25037  Ceanothus prostratus Keefe, Joseph 1967-7-11 Siskiyou Little Castle Lake, southeast of Castle Lake, 10 mi. southwest of city of Mt. Shasta. 1981 Comment
  SBBG16537  Ceanothus prostratus var. prostratus D. Myrick 1961-6-20 268 Siskiyou near Mt Shasta City 1066 Comment
  SD249278  Ceanothus sanguineus David Keil, Kathleen Keil 1990-7-28 Siskiyou Marble Mountains, Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  JEPS83631  Ceanothus sanguineus R. Raiche, K. Zadnik 1987-9-1 RR 70698 Siskiyou US Forest Svc Rd 47N01 ca 0.5 mi n of bridge over W Fork (Jaynes Cyn below confluence of Jaynes Crk and W Fork of Beaver Crk, nw of Klamath River (town), Jaynes Cyn..); below confl Jaynes Crk and W Fork Beaver Crk, Jaynes Cyn dra 987 Comment
  CDA21534  Centaurea X moncktonii B. Villegas 2001-7-8 s.n. Siskiyou Northern California; Indian Creek Bridge near Happy Camp. 0 Comment
  CHSC4114  Centaurea cyanus R. Carter 1966-5-15 400 Siskiyou Ca. 5 mi. N of Callahan along W side road on W side Scott R. 914 Comment
  OBI56382  Centaurea diffusa Paul McCanna 1999-7-20 PDR 1128385 Siskiyou Vicinity of Yreka. T45N, R7w, Sect 21 BM: M Comment
  CDA7265  Centaurea maculosa T. C. Fuller 1963-8-26 11155 Siskiyou W. H. Kerr, Flying K Ranch, upper Quartz Valley, 2 miles south of Mugginsville. 0 Comment
  CDA15579  Centaurea nigra G. F. Hrusa 1998-7-5 14686 Siskiyou Siskiyou Mountains; Immed. S of Indian Creek Bridge at base of pass between Happy Camp CA. & O'Brien OR. Comment
  OBI54096  Centaurea stoebe subsp. micranthos David J. Keil 1992-7-20 23500 Siskiyou Klamath NF, SW of Fort Jones. 1 mi N of Kelsey crk along Scott River Rd 800 Comment
  CAS-BOT-BC106030  Centaurea virgata subsp. squarrosa T. C. Fuller 1969-7-1 18618 Siskiyou Farmed areas and waste ground, 200 aggregate acres over 400 gross acres, Hawkinsville, just n. of Yreka Comment
  UC165259  Centromadia fitchii Geo. D. Butler 1910-7-31 1805 Siskiyou near Yreka Comment
  UC725957  Centromadia fitchii A. A. Heller 1925-7-25 13907 Siskiyou 7 mi s Yreka Comment
  UC1045277  Cephalanthera austiniae W. Bridge Cooke 1940-6-6 15080 Siskiyou along Castle Lake rd. Comment
  HSC44959  Cerastium arvense J. O. Sawyer 1978-6-16 3222 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  CDA3355  Cerastium dichotomum M. V. Maxwell 1961-5-1 Siskiyou 5 miles east of Montague. Comment
  UCD20185  Cerastium dichotomum J. Di Tomaso 2002-5-17 s.n. Siskiyou 8 miles NE of Montague. On York Rd., 300 m east of intersection with Mulloy Rd. Comment
  UCD97999  Cerastium dichotomum T. C. Fuller 1962-5-18 8475 Siskiyou B. M. Long prop., Little Shasta Road, 5 miles east of Montague. Comment
  UC1034587  Cercocarpus betuloides var. macrourus Milo S. Baker and Douglas Barbe 1955-7-1 81 Siskiyou 2.1 mi n of Callahan (at the mouth of Limekiln Gulch); Klamath Mountains, Limekiln Gulch 975 Comment
  HSC76915  Cercocarpus ledifolius K. T. Stillman 1976-6-26 127 Siskiyou Marble Mountain Wilderness Area; Top of pass from Bear Valley 2012 Comment
  CAS-BOT-BC276769  Chaenactis douglasii var. douglasii Alice Eastwood 1912-9-1 2078 Siskiyou Mount Shasta Comment
  CAS-BOT-BC276780  Chaenactis douglasii var. douglasii Alice Eastwood 1912-8-30 1999 Siskiyou Mount Eddy Comment
  UC456029  Chaenactis douglasii var. douglasii I. J. Condit 1911-7-1 Siskiyou Sisson Sisson (roadside) Comment
  UC904784  Chaenactis douglasii var. douglasii unknown 1949-8-26 25679 Siskiyou above Bolam Station; Mount Shasta 2133 Comment
  CAS-BOT-BC276775  Chaenactis douglasii var. douglasii Gilbert Muth 1965-8-12 s.n. Siskiyou Black Mountain, S slope Comment
  RSA178679  Chaenactis suffrutescens A. A. Heller 1928-6-9 14608 Siskiyou Near Castle Lake, a short distance from Castle Crags in the yellow pine belt. Near the source of the Sacramento River. Comment
  SEINET11856212  Chaenactis suffrutescens H. M. Hall, Babcock, E. B. 1903-1 4081 Siskiyou Sierra Nevada Mountains, upper part of Shasta Valley, Mount Shasta 1158 Comment
  CAS-BOT-BC141579  Chamaebatiaria millefolium Elmer I. Applegate 1935-8-4 10025 Siskiyou Upper Ice Cave, Lava Beds National Monument Comment
  SEINET1004220  Chamaebatiaria millefolium Mark Fishbein, Lane Greer 2006-1 5872 Siskiyou Along Forest Service Rd 49, about 7 mi south-southwest of Medicine Lake, about 0.4 mi northeast of Snag Hill. 1585 Comment
  HSC101469  Chamaecyparis lawsoniana J. P. Smith, J. O. Sawyer 2011-7-21 13031 Siskiyou Flint Valley at the end of the G-O Road. 1313 Comment
  HSC65290  Chamaecyparis lawsoniana Rich White 1978-7-18 258 Siskiyou Near stream outlet of Raspberry Lake. 1555 Comment
  HSC68409  Chamaecyparis lawsoniana Maralyn A. Renner 1980-7-4 1413 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC69735  Chamaecyparis lawsoniana Maralyn A. Renner 1980-6-26 1282 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  SEINET7342597 Image available Chamaecyparis nootkatensis Steve Selva, Roger Jensen 1974-1 40 Siskiyou T16N, R5E, Sec 6. Collected in the environs of Devils Punchbowl. Comment
  RSA12607  Chamaesyce serpillifolia C. B. Wolf 1934-7-6 5978 Siskiyou 1/4 mile east of Mt. Shasta City, southwest slope of Mt. Shasta 1098 Comment
  RSA432492B  Chamaesyce serpillifolia L. C. Wheeler 1935-7-13 3659 Siskiyou Ager. 793 Comment
  CHSC93669  Chamaesyce serpyllifolia Lowell Ahart; John Dittes 2005-6-10 12111 Siskiyou North of the poor dirt road, about 40 yards north of the Shasta River, about 200 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CAS-BOT-BC165978  Chamerion angustifolium Wm. Bridge Cooke 1938-7-22 11329 Siskiyou Sisson Southern Trail Comment
  CAS-BOT-BC166094  Chamerion angustifolium subsp. circumvagum H. E. Brown 1897-6-15 46 Siskiyou North side Mt. Shasta 3048 Comment
  RSA120811  Cheilanthes gracillima G. D. Barbe 1955-7-9 156 Siskiyou South side of Kangaroo Lake, Scott Mountains 1829 Comment
  RSA756944  Chimaphila menziesii R. F. Thorne 1969-8-2 63339 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  CAS-BOT-BC452256  Chimaphila umbellata W. R. Dudley 1899-8-22 s.n. Siskiyou Craggy Peak Comment
  CAS-BOT-BC452259  Chimaphila umbellata John Thomas Howell 1939-8-5 15068 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CHSC33839  Chimaphila umbellata J. D. Prouty 1981-7-13 1233 Siskiyou W slope of Lookout Point. 1615 Comment
  HSC19322  Chimaphila umbellata J. O. Sawyer 1968-9-9 661 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  JEPS58866  Chimaphila umbellata Willis L. Jepson Jul 24 1894-Aug 10 1894 14654 Siskiyou near Sisson; Region of the Upper Sacramento Comment
  UC1505637  Chimaphila umbellata Robert T. Clausen and Harold Trapido 1940-7-26 4960 Siskiyou Mud Creek canyon Mt. Shasta; S. Cascade Mts., Sacramento R. Basin, , Mud Creek 1493 Comment
  UC618646  Chimaphila umbellata W. Bridge Cooke 1938-8-5 11459 Siskiyou Mt. Shasta, Sisson Southern Trail 1828 Comment
  CDA7382  Chrysanthemum balsamita F. D. Horn 1976-9-17 Siskiyou Hennessy Street. McCloud. 0 Comment
  HSC36664  Chrysolepis chrysophylla Brent Whiteley 1975-6-28 91 Siskiyou 915 Comment
  RSA82847  Chrysolepis chrysophylla R Tofsrud, J. Mark Porter 1948-8-3 1774 Siskiyou 6.7 miles (by road) below summit of Happy Camp - Waldo (Oregon) road. Comment
  CAS-BOT-BC36235  Chrysolepis sempervirens Wm. Bridge Cooke 1938-9-8 11645 Siskiyou North side of Red Butte, Mount Shasta 2468 Comment
  RSA68860  Chrysolepis sempervirens A. E. Culbertson 1943-7-2 96 Siskiyou Along Castle Lake road from town of Shasta; lower n. slopes of 6600' eastern spur of Trinity Mts., about 10 air miles from headwaters of Sacramento R., to west and 12 miles s.w. of Mt. Shasta. 1220 Comment
  UC1034038  Chrysolepis sempervirens unknown 1941-8-21 16221 Siskiyou n side Diller Canyon (w side of Shastina); Mount Shasta Comment
  UC711898  Chrysolepis sempervirens Roxana S. Ferris and Laura Lorraine 1941-8-11 10508 Siskiyou about 7 mi from Medicine Lake (on road to Modoc Lava Beds National Monument); Shasta National Forest Comment
  CAS-BOT-BC36240  Chrysolepis sempervirens W. R. Dudley 1899-8-8 s.n. Siskiyou near Sisson Tavern Comment
  RSA749202  Chrysothamnus nauseosus subsp. consimilis K. M. Meyer, A. Townesmith 2007-9-16 212 Siskiyou Shasta-Trinity National forest. 0.1 mi. on Forest Service Rd. 43N21, 12.5 mi on Hwy. 97, east side of road 1218 Comment
  NY163429  Chrysothamnus parryi subsp. latior A. A. Heller 1915-8-26 12250 Siskiyou Wagon Creek at the foot of Mt. Eddy 1127.8 Comment
  SD76166  Cicuta maculata var. maculata Helen V. Witham 1969-10-7 586 Siskiyou along Scott River 700 Comment
  HSC96305  Cinna latifolia Gordon Leppig 1998-8-14 1035 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  HSC19228  Circaea alpina subsp. pacifica J. O. Sawyer 1969-7-18 1405 Siskiyou SW facing slope above S Russian Creek. 1905 Comment
  CAS-BOT-BC284400  Cirsium arvense Alice Eastwood 1912-7-17 1164 Siskiyou Sisson Comment
  JEPS86289  Cirsium cymosum var. cymosum W. L. Jepson 1940-6-22 19977 Siskiyou near Hawkinsville; Shasta River 792 Comment
  UC469086  Cirsium cymosum var. cymosum Geo. D. Butler 1909-5-14 753 Siskiyou Klamath Hills Comment
  CAS-BOT-BC279891  Cirsium douglasii var. breweri Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Mumbo Basin, Trinity Mts. 1828 Comment
  CAS-BOT-BC279892  Cirsium douglasii var. breweri R. Ornduff; J. R. Swanson 1960-7-27 6271 Siskiyou About one mile north of Trinity County line on road from Scott Mountain to Trinity Center Comment
  OBI54105  Cirsium douglasii var. breweri David J. Keil, Kathleen Keil 1992-7-21 23553 Siskiyou Klamath NF SE of Callahan. forest Rd 40N08, 4.2 mi W of Scott Mtn Rd (hwy 3) Comment
  CDA1273  Cirsium inamoenum T. R. Haig, F. D. Horn 1979-9-2 s.n. Siskiyou Goosenest Rd., 14 km NE of Tennant. 0 Comment
  HSC34345  Cirsium remotifolium J. P. Smith, J. O. Sawyer 1973-8-14 7302 Siskiyou On trail from Campbell Lake to Cliff Lake 1829 Comment
  CDA1555  Cirsium remotifolium var. odontolepis D. H. Shaw & J. R. Keck 1977-7-19 s.n. Siskiyou Big Flat Campground, end of Coffee Creek Rd., Salmon- Trinity Primitive Area. Klamath National Forest Comment
  CDA1610  Cirsium undulatum J. Massey 1988-7-7 s.n.-(B) Siskiyou East of Dorris, Glenn Butler property. 0 Comment
  HSC26754  Cirsium vulgare J. P. Smith, J. O. Sawyer 1971-9-18 4818 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  POM37807  Clarkia purpurea subsp. quadrivulnera Geo. D. Butler 1910-5-21 1375 Siskiyou Klamath hills Comment
  UC337290  Clarkia rhomboidea Lemmon 1889-6-17 Siskiyou Edgwood Comment
  HSC64526  Clarkia rhomboidea J. P. Smith, Steve Selva 1970-6-14 3863 Siskiyou Comment
  JEPS127640  Claytonia Jurriaan M. de Vos 2014-7-10 318 Siskiyou Klamath NF.Ca. 2.0 miles ENE along Forest Road 1055 from Cook and Green Pass. Comment
  SEINET10674957 Image available Claytonia bulbifera Edward L. Greene 1876-8-22 Greene 1008 Siskiyou On Scott Mountain. Comment
  HSC69337  Claytonia cordifolia John Palmer 1980-8-13 783 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  RSA45343  Claytonia exigua subsp. exigua Dorothy Parker 1947-3-30 s.n. Siskiyou Hartstrand Gulch, east of Scott Valley. 823 Comment
  CAS-BOT-BC439625  Claytonia parviflora subsp. parviflora Carl B. Wolf 1927-8-26 1090 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  RSA237269  Claytonia perfoliata Frederick W. Oettinger 1967-6-28 130 Siskiyou On Salmon River near mouth of Kelly Gulch. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  SEINET7042820  Claytonia perfoliata A. G. Vestal 1955-5-16 s.n. Siskiyou Open pine country just west of Weed between railroad and highway 99 [I5]. Weed quadrangle UTM Zone 10, 549920mE, 4586493mN. Comment
  CAS-BOT-BC443829  Claytonia rubra subsp. rubra H. A. Thomas; J. H. Thomas 1954-7-21 4427 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek. 1219 Comment
  SBBG30593  Claytonia rubra subsp. rubra D. Myrick 1968-6-25 2013 Siskiyou Mountain Meadow Ranch, Big Flat; Coffee Crk 1524 Comment
  CAS-BOT-BC443817  Claytonia rubra subsp. rubra Wm. Bridge Cooke 1938-6-24 11063 Siskiyou Mount Shasta. MacBride [McBride] Springs Comment
  CAS-BOT-BC443818  Claytonia rubra subsp. rubra Wm. Bridge Cooke 1938-6-24 11063 Siskiyou Mount Shasta. MacBride [McBride] Springs Comment
  CAS-BOT-BC443826  Claytonia rubra subsp. rubra Geo. D. Butler 1909-3-24 676 Siskiyou Old Mining Dump, Oro Fino Comment
  HSC17703  Claytonia rubra subsp. rubra D. M. Thomson 1965-7-10 123 Siskiyou Lava Beds National Monument, by headquarters and information office Comment
  HSC30232  Claytonia rubra subsp. rubra William J. Ferlatte 1968-6-8 1131 Siskiyou Big Flat, near campground 1524 Comment
  SEINET198900  Claytonia saxosa D. Parker 1947-3-30 Siskiyou Hartstrand Gulch E side of Scott Valley 866 Comment
  CAS-BOT-BC92766  Clematis ligusticifolia Edward Lee 1934-8-10 1022 Siskiyou South bank of Klamath River between McKinney and Parkhouse creeks (near Hamburg). 609 Comment
  JEPS60556  Clematis ligusticifolia W. L. Jepson July 1894 Siskiyou Sisson Comment
  SEINET3159191  Clematis ligusticifolia G. D. Butler 1910-8-3 1810 Siskiyou Yreka creek Comment
  UC144225  Cleome platycarpa A. A. Heller 1905-6-9 8010 Siskiyou Montague Comment
  CHSC33848  Clintonia uniflora J. D. Prouty 1981-8-5 1284 Siskiyou Adjacent to Whiskey Creek and road 39N51.2. 1219 Comment
  HSC19263  Clintonia uniflora J. O. Sawyer 1968-6-18 168 Siskiyou Above S Russian Creek on W side. 1463 Comment
  CAS-BOT-BC500967  Clintonia uniflora Geo. D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC500968  Clintonia uniflora Volney Rattan 1879-6-1 s.n. Siskiyou Siskiyou Mountains, Northwest California Comment
  POM109340  Clintonia uniflora Geo D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek Comment
  SEINET10311487 Image available Collinsia linearis Marc Baker 1980-6-20 2227 g Siskiyou Near Bald Mountain 275 Comment
  UC1001180  Collinsia linearis Dorothy Parker 1953-5-24 537 Siskiyou Siskiyou Mountains, Scott River Scott River; Siskiyou Mountains, Scott River 687 Comment
  HSC43382  Collinsia parviflora Maralyn O'Meara 1974-5-26 458 Siskiyou Along USFS Rd. 47N03 1524 Comment
  CHSC96009  Collinsia rattanii L. P. Janeway 2006-7-3 8765 Siskiyou Klamath Ranges. Salmon Mountains; along Music Creek Trailhead Road about 1.5 km west of upper crossing of Music Creek. 1646 Comment
  HSC25480  Collinsia torreyi J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5721 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC46338  Collomia grandiflora J. P. Smith, Steve Selva 1970-6-15 3940 Siskiyou Road between Forks of Salmon and Cecilville. 579 Comment
  UC52839  Collomia grandiflora W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Comment
  RSA237935  Collomia grandiflora Frederick W. Oettinger 1968-8-11 483 Siskiyou Tom Taylor Cabin spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UCD118152  Collomia grandiflora Jack Major; M. Fleschner, R. Pemble 1966-9-3 s.n. Siskiyou Canyon Creek, NE of Marble Mountain, Marble Mountains. 1676 Comment
  HSC45798  Collomia heterophylla J. P. Smith 1976-5-4 8657 Siskiyou On the road to Slater Butte, Klamath National Forest 549 Comment
  RSA409235  Collomia heterophylla L. C. Wheeler 1934-8-5 3046 Siskiyou Condrey Mt., Siskiyou Mts. Mt. Diablo Mer. 2165 Comment
  UCD77565  Collomia linearis Robert E. Preston 2001-6-30 1640 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mountain. 1722 Comment
  CHSC96012  Collomia tinctoria L. P. Janeway 2006-7-3 8762 Siskiyou Klamath Ranges. Salmon Mountains; along Music Creek Trailhead Road at upper crossing of Music Creek. 1716 Comment
  SJSU6072  Collomia tinctoria R. W. Trivelpiece 1971-7-14 52 Siskiyou Blue Ridge between Sawyers Bar & Cecilville, SW of Eddy Gulch Lookout, Salmon R Mts 1219 Comment
  UC902031  Collomia tracyi Joseph P. Tracy 1949-9-18 18558 Siskiyou on road between Cecilville and Sawyer's Bar; Blue Ridge 1584 Comment
  UC971919  Collomia tracyi Herbert L. Mason 1950-7-15 14043 Siskiyou stream wash Scott Valley, Scott Creek Comment
  CDA26905  Colutea arborescens F. D. Horn 1980-8-22 Siskiyou Off freeway, I-5, Dunsmuir. 0 Comment
  UC165248  Conium maculatum Geo. D. Butler 1909-6-26 924 Siskiyou near Yreka Comment
  POM21381  Convolvulus arvensis George B. Grant 1902-9-13 s.n. Siskiyou Sisson. Comment
  HSC45041  Corallorhiza maculata J. O. Sawyer, E. Cope 1977-6-19 2942 Siskiyou Clear Creek Trail between West Fork and Preston Creek 854 Comment
  JEPS104436  Corallorhiza mertensiana Martin J. Lenz 2003-6-9 17 Siskiyou approx. 1.2 mi E of Deadhorse Summit, along logging road 60A 1378 Comment
  RSA381992  Corallorhiza mertensiana M. B. Dunkle 1944-7-8 9084 Siskiyou Deer Creek, Siskiyou National Forest Comment
  JEPS86236  Cordylanthus tenuis subsp. pallescens L. R. Heckard 1979-8-16 5157 Siskiyou n Mt. Shasta City (just sw of Black Butte, corner of old Hwy 99 and Pony Tail Dr.) 914 Comment
  UCD123142  Cordylanthus tenuis subsp. pallescens Barbara L. Wilson; Richard E. Brainerd 2010-8-9 16280 Siskiyou road to trailhead for Black Butte trail. 1353 Comment
  JEPS57137  Cordylanthus tenuis subsp. viscidus L. R. Heckard 1967-7-5 1603 Siskiyou n side Mt. Shasta (along Bolam logging road) 1524 Comment
  JEPS85954  Cordylanthus tenuis subsp. viscidus Don Burk 1990-11-3 Siskiyou w Dunsmuir (n side of road 40N26, ca. 1.8 mi below South Fork Sacramento River Bridge); Shasta National Forest 1828 Comment
  HSC77490  Cordylanthus tenuis subsp. viscidus L. P. Janeway 1983-8-3 483 Siskiyou Near W Branch USFS Station 671 Comment
  RSA516621  Cordylanthus tenuis subsp. viscidus R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-12 4792 Siskiyou Along highway following the Klamath River, 0.5 mile west of Hamburg. 457 Comment
  RSA523399  Cordylanthus tenuis subsp. viscidus L. R. Heckard, T. I. Chuang, R. C. Bacigalupi 1968-8-13 2123 Siskiyou Along Dunsmuir Avenue, just over a mile south of Dunsmuir (downtown). 823 Comment
  UC166604  Cornus glabrata Geo. D. Butler 1908-8-7 84 Siskiyou bank of Lake at head of W. Fork Woolly Creek Comment
  CAS-BOT-BC212049  Cornus nuttallii Marion Ownbey; D. H. Brown 1941-6-22 2426 Siskiyou Road between Craggy Mountain, and Deadwood Lookout northwest of Yreka Comment
  CAS-BOT-BC212054  Cornus nuttallii J. H. Thomas 1954-5-13 4134 Siskiyou Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, vicinity of Blind Horse Creek, Salmon Mountains, Klamath National Forest 1066 Comment
  RSA0091888  Cornus nuttallii Bonnie C. Templeton 1957-6-24 7747 Siskiyou Near summit of Scott Mt. Comment
  UC618768  Cornus nuttallii W. Bridge Cooke 1938-6-17 11038 Siskiyou Sisson Southern Trail Mt. Shasta Comment
  CAS-BOT-BC210396  Cornus sericea Doris K. Kildale 1928-8-18 6455 Siskiyou Head of North Fork of Salmon River at Finley's Upper Camp Comment
  CAS-BOT-BC210399  Cornus sericea A. A. Heller 1920-8-11 13504 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC210404  Cornus sericea Doris K. Kildale 1928-8-20 6335 Siskiyou Head of North Fork Salmon River at Finley's Upper Camp Comment
  CAS-BOT-BC210416  Cornus sericea Alice Eastwood 1912-7-21 1272 Siskiyou Sisson Comment
  CAS-BOT-BC210419  Cornus sericea A. A. Heller 1905-6-15 8043 Siskiyou On the banks of the Sacramento west of and near Sisson Comment
  CAS-BOT-BC210427  Cornus sericea Alice Eastwood 1921-7-24 10726 Siskiyou Castle Lake Comment
  JEPS50180  Cornus sericea subsp. sericea Geo. D. Butler 1908-8-21 86 Siskiyou Etna Creek 1219 Comment
  UC165402  Cornus sericea subsp. sericea Geo. D. Butler 1910-6-4 1490 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC180192  Corylus cornuta subsp. californica Carl B. Wolf 1927-8-26 1067 Siskiyou On the Klamath River, 8 mi above Hamburg Comment
  CAS-BOT-BC180200  Corylus cornuta subsp. californica Alice Eastwood 1923-5-29 12005 Siskiyou Cantara Comment
  HSC19274  Corylus cornuta subsp. californica J. O. Sawyer 1968-6-18 235 Siskiyou Valley bottom of Blakes' Fork. 1707 Comment
  POM106650  Corylus cornuta var. californica Geo. D. Butler 1908-7-12 1073 Siskiyou Humbug Mountain. Comment
  HSC5441  Crepis acuminata R. C. Wunner 1965-6-10 146 Siskiyou California Lava Beds N. M. below Caldwell minor; E slope of Caldwell 1402 Comment
  CAS-BOT-BC291527  Crepis intermedia John Thomas Howell 1939-8-4 15041 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  CAS-BOT-BC291528  Crepis intermedia Louis C. Wheeler 1934-6-29 2829 Siskiyou Soda Creek, Klamath Forest 1066 Comment
  JEPS36497  Crepis monticola Duncan Dunning 1922-6-8 Siskiyou nw Fort Jones; Moffett Creek Comment
  CAS-BOT-BC376472  Crepis pleurocarpa Gilbert J. Muth 1969-8-6 1256 Siskiyou Boulder Peak Ridge Comment
  HSC66397  Crepis pleurocarpa Maralyn A. Renner 1980-8-21 2602 Siskiyou SW of trail from Leroy Mine to Sunrise Basin near ridge 2287 Comment
  HSC76939  Crepis pleurocarpa K. T. Stillman 1976-8-7 204 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  UC163912  Crepis pleurocarpa Geo. D. Butler 1908-8-3 306 Siskiyou Shackleford Creek Log Lake Comment
  CAS-BOT-BC290871  Crepis pleurocarpa Louis C. Wheeler 1934-8-16 3168 Siskiyou 2 mi. E White Mt., Siskiyou Mts. 1920 Comment
  CAS-BOT-BC290872  Crepis pleurocarpa L. E. Smith 1913-7-12 474 Siskiyou Sulloway Creek Comment
  CDA34521  Crocidium multicaule B. Villegas, Jodi Aceves 2011-5-24 s.n. Siskiyou Klamath National Forest, USFS Road 45N01 off USFS Road 45N11Y. 0 Comment
  CDA4485  Crocidium multicaule Vernon H. Oswald & Lowell Ahart 1998-6-11 9197 Siskiyou Dry Lake on the south side of Tennant Road, ca. 9 air miles east of Grass Lake, ca. 22 air miles northeast of Weed. Comment
  HSC44642  Crypsis schoenoides K. T. Stillman 1976-8-24 431 Siskiyou Along the Klamath River at Williams Point 366 Comment
  HSC82249  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1980-7-5 5982 Siskiyou Fowler's Campground 1006 Comment
  HSC3598  Cryptantha celosioides R. C. Wunner 1965-6-15 184 Siskiyou Lava Beds National Monument; SE side of Caldwell Butte, ca. 1/2 way down steep red cinder slope above cinder pit 1463 Comment
  HSC33977  Cryptantha muricata var. jonesii J. P. Smith 1974-5-25 7441 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  HSC63997  Cryptantha rostellata J. P. Smith 1974-5-25 7372 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  POM72235  Cryptantha torreyana Edward Palmer 2517 Siskiyou Mount Shasta and vicinity. Comment
  SEINET14387696  Cryptogramma cascadensis W. Bridge Cook 1941-1 16304 Siskiyou Scattered through lava slopes above Horse Camp, Mt Stasta 2515 Comment
  RSA233668  Cryptogramma cascadensis R. F. Thorne 1969-8-10 38980 Siskiyou Mount Shasta National Forest, south slope of Mount Shasta. 2378 Comment
  CAS-BOT-BC80558  Cupressus bakeri Carl B. Wolf 1930-10-19 1746 Siskiyou Modoc Lava Beds, 1 mile east of Timbered Butte on old road from C.W. Hill Farm at Dana to Little Hot Springs Valley 1219 Comment
  CAS-BOT-BC85601  Cupressus bakeri Oliver V. Matthews 1939-7-18 37 Siskiyou N.E. Goose Nest Grove-Goose Nest Region 1828 Comment
  CAS-BOT-BC85607  Cupressus bakeri C. B. Wolf; E. R. Johnson 1934-10-8 6166 Siskiyou Modoc Lava Beds, 1 mi. N.E. of Timbered Crater on Old Stage Rd. from Dana to Little Hot Springs Valley 1219 Comment
  RSA22756  Cupressus bakeri O. V. Matthews 1939-7-18 39 Siskiyou Northeast slope of Goose Nest, ca. 15 minute hike from end of recently abandoned caterpillar logging trail or drag-way 1524 Comment
  UC650672  Cupressus bakeri Oliver V. Matthews 1939-7-18 37 Siskiyou ne Goose Nest Grove Goose Nest Region 1524 Comment
  NY643322  Cuscuta approximata L. C. Wheeler 1934-9-22 3294 Siskiyou Walker, Klamath River, Siskiyou Mts. 518.2 Comment
  UCD103549  Cuscuta campestris Rob Wilson 2010-9-8 s.n. Siskiyou Near Tulelake. Comment
  HSC22481  Cynoglossum occidentale J. O. Sawyer 1969-8-3 1790 Siskiyou Alluvial terrace along Duck Lake Creek 1921 Comment
  OBI68614  Cynoglossum officinale T. C. Fuller 1968-8-1 17453 Siskiyou W side of rd to McCloud Reservoir, 0.3 mi S of McCloud Comment
  UC184030  Cyperus squarrosus Geo. D. Butler 1910-8-13 1835 Siskiyou Oro Fino Comment
  UC1258463  Cypripedium californicum Maralyn A. Renner 1980-7-4 1457 Siskiyou Clear Creek Trail n Trout Camp; Klamath National Forest, Preston Peak Quad. 1036 Comment
  UC54208  Cypripedium californicum H. M. Hall and E. B. Babcock June, 1903 4043 Siskiyou 18th crossing Sacramento River (near Sisson); Mount Shasta Comment
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Apr 14 2016
  HSC26114  Cystopteris fragilis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5682 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  UC796587  Cystopteris fragilis Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11765 Siskiyou ca. 6 mi from Etna (on forks of Salmon Rd.) 1676 Comment
  CAS-BOT-BC192249  Danthonia californica Melissa A. Berry 1957-7-6 s.n. Siskiyou Heather Lake, near Salmon Mt. 2042 Comment
  CAS-BOT-BC192254  Danthonia californica John Thomas Howell 1937-7-1 13456 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC76227  Darlingtonia californica J. H. Miller 1886-7-1 s.n. Siskiyou Mount Shasta. Comment
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Nov 6 2019
  CAS-BOT-BC76242  Darlingtonia californica Wayne Roderick 1967-7-28 s.n. Siskiyou At head of Gumboot Lake, southwest of Mount Eddy. 1828 Comment
  UC11154  Darlingtonia californica Geological Survey 1862-1 1356 Siskiyou near stream Mt. Shasta Comment
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Nov 6 2019
  UC1483486  Darlingtonia californica Maralyn A. Renner 1980-7-4 1382 Siskiyou near trail about 1/4 mi below Rattlesnake Meadow; Klamath National Forest, Preston Peak Quad. 1584 Comment
  UC70416  Darlingtonia californica Milo S. Baker 1888-1 Siskiyou Castle Lake Comment
  UCD119059  Darlingtonia californica Collector unknown Date unknown s.n. Siskiyou Mt. Shasta. Comment
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Nov 6 2019
  CAS-BOT-BC141836  Dasiphora fruticosa Gilbert J. Muth 1969-8-8 1277 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  HSC139  Dasiphora fruticosa William J. Ferlatte 1966-8-19 441 Siskiyou Kidd Creek Trail. 1707 Comment
  UC1334523  Delphinium andersonii G. A. L. Mehlquist and J. A. Jenkins 1940-5-30 18 Siskiyou sw-facing slope Sconchin Butte Comment
  CAS-BOT-BC8952  Delphinium decorum subsp. tracyi Mrs. H. C. Cantelow 1936-5-20 s.n. Siskiyou Summit of Salmon Mtn. Comment
  JEPS25835  Delphinium glaucum Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7449 Siskiyou Poker Flat Siskiyou Mts. ((about 12 airline mi nw of Happy Camp)) 1524 Comment
  RSA0125557  Delphinium glaucum Gilbert Muth 1969-8-11 1365 Siskiyou Ridge south of Boulder Peak. 2317 Comment
  CAS-BOT-BC9849  Delphinium nudicaule Wm. F. Herrin 1920-5-1 s.n. Siskiyou Shasta Springs Comment
  HSC77027  Delphinium nuttallianum K. T. Stillman 1976-6-25 50 Siskiyou Marble Mtn. Wilderness Area, SW facing slope. 1921 Comment
  CAS-BOT-BC94406  Delphinium nuttallianum R. C. Wenk 2005-7-15 208 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail. Top of pass between Yellow Rose 2133 Comment
  CDA24255  Delphinium nuttallianum T. C. Fuller 1958-4-16 Siskiyou Giebner property, 4 miles south of Yreka. 0 Comment
  HSC41686  Delphinium nuttallianum J. P. Smith 1976-5-21 8753 Siskiyou Along FS Rd. 40N08, 1 mi. from its junction with Hwy. 3, Klamath National Forest 1646 Comment
  RSA790244  Delphinium nuttallianum Rebecca Wenk 2005-7-19 347 Siskiyou Border between Siskiyou and Trinity Counties, National Forest Road 17, parking lot where Pacific Crest Trail crosses road at top of pass. 2091 Comment
  CAS-BOT-BC192470  Deschampsia cespitosa subsp. cespitosa Elmer I. Applegate 1923-8-19 3895 Siskiyou Medicine Lake, west side 1981 Comment
  HSC19143  Deschampsia danthonioides J. O. Sawyer 1969-8-18 1976 Siskiyou S of S Sugar Lake 2104 Comment
  JEPS1798  Dianthus deltoides subsp. deltoides Duncan Dunning 1921-7-16 Siskiyou se Toad Mountain (Toad Lake, nw of Hambone, southeastern Siskiyou County); se of Toad Mountain Comment
  UC35046  Dicentra formosa C. B. Bradley 1879-1 Siskiyou Comment
  UC922610  Dicentra formosa Annie M. Alexander and Louise Kellogg 1948-9-7 5595 Siskiyou Black Bear Summit road; Siskiyou Mountains Comment
  CAS-BOT-BC402473  Dicentra formosa subsp. formosa Lewis S. Rose 1925-7-27 s.n. Siskiyou Shasta Springs Comment
  JEPS82680  Dicentra pauciflora Wayne Roderick 1984-6-7 Siskiyou Cabin Meadow s.w. Stewart Springs (camp site) 1798 Comment
  HSC44866  Dichelostemma capitatum subsp. capitatum J. P. Smith 1973-5-5 6455 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  SEINET3885619  Dichelostemma congestum D. W. McNeal 1978-6-2 2156 Siskiyou On a rd. bank beside the Happy Camp-Cave Jct. Rd., 10.7 mi. N. of its jct. with Hwy. #96 in Happy Camp.; 0 Comment
  UCD139161  Dichelostemma ida-maia Louis K. Mann 1963-7-5 s.n. Siskiyou South Russian Creek, around 3 miles (airline) east of Finley Camp, Salmon Mountains. Comment
  CHSC4539  Dieteria canescens J. E. Bowlin 1967-7-18 51 Siskiyou Ca. 12 mi W of Mount Shasta Ski Bowl. 1066 Comment
  CAS-BOT-BC291001  Dieteria canescens var. shastensis Alice Eastwood 1921-7-28 10911 Siskiyou Medicine Lake Comment
  CAS-BOT-BC291002  Dieteria canescens var. shastensis Alice Eastwood 1912-7-16 1120 Siskiyou McCloud Comment
  UC609337  Dieteria canescens var. shastensis Eleanor Burks Hart 1938-8-16 943 Siskiyou Lower Wright Lake 2225 Comment
  UCR70754  Dimeresia howellii D. W. Taylor, G. L. Clifton, R. D. Stone 1987-8-7 9250 Siskiyou Caldwell Butte, Lava Beds National Monument. On crater floor at northern interior 1500 Comment
  CAS-BOT-BC153724  Diplacus nanus Roxana S. Ferris; Laura Lorraine 1948-6-12 11851 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side 1417 Comment
  JEPS61814  Disporum hookeri Geo. D. Butler 1908-8-24 93 Siskiyou Russian Creek, Eldredge's Corral Russian Creek; , Eldredge's Corral 1219 Comment
  HSC61802  Dodecatheon jeffreyi Ruby Van Deventer 13 Jun [year missing] Siskiyou Poker Flat 1585 Comment
  HSC69059  Dodecatheon jeffreyi Maralyn A. Renner 1980-8-6 2321 Siskiyou Cracker Meadow 1555 Comment
  CHSC71294  Downingia insignis Vernon H. Oswald; Lowell Ahart 1998-6-11 9217 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
  SD62278  Downingia yina John H. Weiler, A. P. Nelson 1960-6-25 60207 Siskiyou At the side of highway 99, 2.3 miles northwest of Weed. Comment
  POM208274  Downingia yina L. C. Wheeler 1934-7-3 2870 Siskiyou Soda Creek, Sterling Mt.; Siskiyou Mts.; Mt. Diablo Meridian. 1677 Comment
  CAS-BOT-BC41304  Draba pterosperma John Thomas Howell 1939-8-4 15038 Siskiyou Marble Mountains. Marble Rim. 1889 Comment
  CAS-BOT-BC41309  Draba pterosperma C. L. Hitchcock; J. S. Martin 1939-7-9 5317 Siskiyou King's Castle. 1828 Comment
  CAS-BOT-BC41315  Draba pterosperma D. M. Traugh 1933-8-6 9 Siskiyou Klamath Forest. Marble Valley. 1981 Comment
  UC173898 Image available Draba pterosperma Geo. D. Butler 1910-7-10 1716 Siskiyou Marble Mountain 1676 Comment
  UCD115549  Draba pterosperma Jack Major; M. Fleschner, R. Pemble 1966-9-4 s.n. Siskiyou NE-face of Marble Mountain, Marble Mountains. 2133 Comment
  UCR37813  Draba pterosperma K. T. Stillman 1976-7-30 318 Siskiyou Marble Mtn Wilderness Area, ridge top just north of Black Mt. 2104 Comment
  CAS-BOT-BC41410  Draba verna John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53385 Siskiyou Yreka. 792 Comment
  UC1114140  Draba verna Gene B. Newcomb and H. G. Baker Mar 28 1959-Mar 29 1959 231 Siskiyou on the road to Callahan 7.8 mi from Gazelle (at the point where the road first crosses Willow Creek); Willow Creek, 7.8 mi from Gazelle 1066 Comment
  HSC42906  Drymocallis glandulosa J. O. Sawyer, Ken Stillman 1976-5-28 2724 Siskiyou Along Rd. W of Sawyers Bar. 610 Comment
  HSC69379  Drymocallis glandulosa J. O. Sawyer, J. Cole 1980-7-19 3689 Siskiyou Near FS Rd. 45N05, center of section 1890 Comment
  UC165749  Drymocallis glandulosa var. glandulosa Geo. D. Butler 1910-5-30 1431 Siskiyou Humbug Creek Comment
  HSC29656  Drymocallis rhomboidea Frederick W. Oettinger, R. F. Thorne 1969-8-5 1209 Siskiyou Marble Mtn. Wilderness Area, Willow Spring on English Lake trail 1677 Comment
  HSC43054  Dryopteris arguta Ken Stillman 1976-8-24 445 Siskiyou E and N slopes of Williams Point 366 Comment
  UC1593362  Dryopteris expansa Alan Smith with Chris Richards, C. Don Macneill, Janet Sowers, Bob Martin, Pat Toops, and Barney 1992-6-6 2540 Siskiyou at base of entrance pit Fossil Cave; Lava Beds Nat'l Monument 1280 Comment
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May 30 2013
  CDA4585  Echinops exaltatus V. Pierce, M. Grifantini 1970-7-2 Siskiyou David Caldwell property, The Pines, Interstate 5, south of Yreka. 0 Comment
  NY335211  Echinospermum greenei E. L. Greene 1876-5-10 744 Siskiyou Yreka 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
  HSC68515  Eleocharis suksdorfiana Maralyn A. Renner 1980-6-26 1174 Siskiyou Flint Valley. 1390 Comment
  CAS-BOT-BC213783  Elymus X hansenii Wm. Bridge Cooke 1938-7-15 11227 Siskiyou Above Bear Springs. 1676 Comment
  RSA211383  Elymus elymoides William J. Ferlatte 1966-8-4 316 Siskiyou Yellow Rose Mine 1982 Comment
  UC1024954  Elymus elymoides subsp. elymoides Leo Whitney 1935-6-25 3308 Siskiyou 2 mi se Medicine Lake; Bullseye Lake Comment
  HSC108  Elymus elymoides var. californicus William J. Ferlatte 1966-8-2 243 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  HSC30696  Elymus elymoides var. elymoides Frederick W. Oettinger 1968-8-8 455 Siskiyou Marble Mtn. Wilderness Area, Crapo Meadow 2165 Comment
  UC196945  Elymus multisetus Geo. D. Butler 1910-5-26 1424 Siskiyou Yreka Comment
  UCD62506  Elymus multisetus Beecher Crampton 1969-6-19 8469 Siskiyou 3 miles north of Weed along Interstate Hwy. 5. Comment
  HSC101396  Elymus spicatus J. P. Smith, J.0. Sawyer, R. J. Cole 2010-8-7 13052 Siskiyou Kalmath National Forest. Forest Service Road 40N24 to Crater Lake 1768 Comment
  HSC64828  Elymus spicatus J. P. Smith, Steve Selva 1970-6-16 3970 Siskiyou 6 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1280 Comment
  UCD62613  Elymus stebbinsii subsp. septentrionalis A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3406 Siskiyou Canyon N of Willow Creek, 5 miles W of Gazelle. Comment
  UC1130623  Elymus trachycaulus H. S. Yates 1936-6-21 5819 Siskiyou 1 mi se Gazelle; Etna Quadrangle Comment
  JEPS117634  Elymus trachycaulus subsp. trachycaulus Lowell Ahart, John Dittes 2010-7-30 16957 Siskiyou About 20 yards south of the Shasta River, about 50 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  CHSC93530  Elytrigia intermedia subsp. barbulata Lowell Ahart; John Dittes 2005-6-10 12121 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  CHSC88395  Epilobium brachycarpum Jenny Marr 1993-7-1 154 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC26926  Epilobium brachycarpum J. P. Smith, J. O. Sawyer 1971-9-18 4849 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  RSA15689  Epilobium brachycarpum Carl B. Wolf 1927-8-26 1077 Siskiyou On the Klamath River, near Hamburg. Comment
  POM259018  Epilobium ciliatum subsp. ciliatum W. Bridge Cooke 1940-7-12 15320 Siskiyou In spring in Box Canyon of the Sacramento River near Mount Shasta City 915 Comment
  POM32629  Epilobium ciliatum subsp. ciliatum E. B. Copeland 1903-7-7 3548 Siskiyou Hornbrook. Comment
  HSC42954  Epilobium glaberrimum subsp. glaberrimum J. O. Sawyer, Ken Stillman 1976-7-1 2781 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  POM258627  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1940-7-5 15231 Siskiyou Mt. Shasta: in the meadow at Bear Springs. 1524 Comment
  HSC91952  Epilobium hallianum Jennifer Whipple 1976-7-8 1347 Siskiyou SW of Dobkins Lake along drainage into the lake 2256 Comment
  HSC19492  Epilobium hornemannii subsp. hornemannii J. O. Sawyer 1969-7-11 1314 Siskiyou Above S Sugar Creek 2012 Comment
  POM259601  Epilobium lactiflorum J. T. Howell 1939-8-2 14868 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  HSC29148  Epilobium lactiflorum Frederick W. Oettinger 1968-8-4 388 Siskiyou Marble Mtn. Wilderness Area, along trail N of Crapo Peak Ridge 2195 Comment
  HSC44948  Epilobium minutum J. O. Sawyer 1978-6-17 3235 Siskiyou Marble Mtn. Wilderness Area, slopes E of Gem Lake 2073 Comment
  UCD105960  Epilobium minutum Jesse Miller 2010-1 s.n. Siskiyou Near Yreka.. 1219 Comment
  POM46473  Epilobium siskiyouense Geo. D. Butler 1910-7-9 1727 Siskiyou Wooly Creek. 1677 Comment
  UC371170  Equisetum laevigatum G. D. Butler 1909-5-22 879 Siskiyou Yreka Comment
  CAS-BOT-BC204627  Eragrostis mexicana subsp. virescens R. E. Frenkel 1964-10-2 901 Siskiyou Everitt Memorial Highway, 1.0 mile north of McCloud River RR crossing, near Mount Shasta 1219 Comment
  UCD21461  Eremogone congesta Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1200 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along trail to Gray Rock Lake. 1819 Comment
  CAS-BOT-BC174233  Eremogone congesta var. congesta Carl B. Wolf 1934-7-5 5965 Siskiyou Siskiyou Mts., 3 6/10 mi. from Dry Lake Lookout on road to Horse Creek 1981 Comment
  CAS-BOT-BC168327  Eremogone congesta var. congesta Doris K. Kildale 1928-7-4 5483 Siskiyou Summit of divide between Sawyers Bar and Etna Comment
  CHSC99710  Eremogone congesta var. suffrutescens L. P. Janeway 2008-7-22 9450 Siskiyou Klamath Ranges. Between the Trinity Mountains, Castle Crags, and The Eddys; top of slope overlooking Little Castle Lake from the southwest; 0.6 air km southwest of Little Castle Lake. 1896 Comment
  CAS-BOT-BC286693  Ericameria bloomeri Wm. Bridge Cooke 1938-9-17 11687 Siskiyou Mount Shasta. Horse Camp Comment
  CAS-BOT-BC286700  Ericameria bloomeri A. A. Heller 1914-8-26 11722 Siskiyou At Weed 1066 Comment
  SD76180  Ericameria bloomeri Helen V. Witham 1969-10-9 597 Siskiyou McBride Springs Road, Mount Shasta 1500 Comment
  SEINET515864  Ericameria bloomeri Vernon H. Oswald 1998-9-8 9608 Siskiyou USFS 3 ca. 0.8 mi west of Julia Glover Flat, ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir, ca. 2 air mi northwest of Indian Spring Mtn. 1128 Comment
  SEINET5727000 Image available Ericameria bloomeri Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7707 Siskiyou Mt. Shasta City. Collected along Rd. 89, E of Mt. Shasta City.; Mt. Shasta City 1338 Comment
  SEINET5727123 Image available Ericameria bloomeri Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7707 Siskiyou Mt. Shasta City. Collected along Road 89, E of Mt. Shasta City.; Mt. Shasta City 1338 Comment
  SFV8418  Ericameria bloomeri J. M. Tucker 1968-9-14 4143 Siskiyou State Highway 89, 7 miles east of McCloud. Comment
  CAS-BOT-BC287493  Ericameria greenei Louis C. Wheeler 1934-8-24 3220 Siskiyou Trapper Creek, Siskiyou Mts 1859 Comment
  POM274348  Ericameria greenei B. W. Heacox 1947-9-11 187 Siskiyou Dry-Lake Look-out Station. Siskiyou Mt. Range, Klamath River Drainage Area Comment
  UCD77546  Ericameria nauseosa var. speciosa Robert E. Preston 2001-8-26 1770 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 2103 Comment
  UC726586  Ericameria parryi var. latior A. A. Heller 1927-8-1 Siskiyou Sisson Comment
  HSC5546  Erigeron aliceae Ruby Van Deventer 1939-7-18 43 Siskiyou Poker Flat, south of Little Greyback Mtn 1524 Comment
  HSC69305  Erigeron aliceae Maralyn A. Renner 1980-7-24 1984 Siskiyou Pacific Crest Trail above Lily Pad Lake 1799 Comment
  JEPS24030  Erigeron aliceae Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6894 Siskiyou Poker Flat Siskiyou Mountains 1536 Comment
  POM35919  Erigeron aliceae Geo. D. Butler 1910-6-8 1653 Siskiyou Shackleford Creek Comment
  JEPS41564  Erigeron bloomeri Geo. D. Butler 1909-5-10 699 Siskiyou dry hill near Yreka Comment
  UC1190272  Erigeron cervinus Ira L. Wiggins 1955-7-27 13518 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  JEPS101163  Erigeron compositus Dean W. Taylor 1996-6-19 15708 Siskiyou Lime Gulch; bordering Shasta Valley (about 15 miles south of Yreka) 1188 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
  CAS-BOT-BC296124  Erigeron foliosus var. confinis Louis C. Wheeler 1934-8-6 3055 Siskiyou Rock Gulch, Klamath Forest 1828 Comment
  HSC61968  Erigeron foliosus var. confinis Al Hobart 5 Aug [year missing] Siskiyou Preston Peak Comment
  UC1409459  Erigeron glacialis var. glacialis Frederick W. Oettinger and R. F. Thorne 1969-8-4 1174 Siskiyou High Lake Basins in the vicinity of English Peak, meadow n of Tobacco lake; Salmon Mountains, Western Siskiyou County, Marble Mountain W 1889 Comment
  RSA507456  Erigeron inornatus var. inornatus S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  UC1023731  Erigeron nivalis W. Bridge Cooke 1941-8-14 16180 Siskiyou on ridges n of Horse Camp; Mount Shasta 2743 Comment
  RSA238715  Erigeron peregrinus subsp. callianthemus Frederick W. Oettinger 1969-7-13 1008 Siskiyou Slope N of Upper English Lake 1799 Comment
  JEPS105684  Erigeron petrophilus var. viscidulus L. P. Janeway 2003-8-9 7963 Siskiyou Klamath Ranges; Siskiyou Mountains betweeen Cook and Green Pass and Red Butte; slope overlooking uppermost fork of Seiad Creek; along 4-wheel-drive road 1698 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
  UC163905  Erigeron pumilus var. intermedius Geo. D. Butler 1910-6-3 1471 Siskiyou Quartz Valley Comment
  HSC96824  Eriodictyon californicum S. Lyon, J. McIntire 2006-6-25 27 Siskiyou 1 mi. W of Blackbear Summit at jct. of USFS Rd. 39N28 and 39N41 1341 Comment
  UCD13254  Eriodictyon lobbii K. F. Mawdsley 1996-7-9 5 Siskiyou California, Siskiyou County, Russian Wilderness in Klamath National Forest. Eaton-Duck Lakes Trailhead. T40N, R9W, southwest 1/4 of Section 18, Eaton Peak 7.5' topo. Along dirt road. Elev. 5000. Comment
  HSC43457  Eriogonum alpinum Jennifer Whipple 1976-8-20 1720 Siskiyou Wagon Creek drainage on E face of Mt. Eddy 2256 Comment
  CAS-BOT-BC124204  Eriogonum congdonii Joseph Whipple Congdon 1900-8-18 s.n. Siskiyou Mt. Eddy Trail Comment
  HSC32165  Eriogonum diclinum J. O. Sawyer 1970-7-5 2329 Siskiyou Ukanom Lake, E of Cuddiky Lakes, Plot 330 1738 Comment
  RSA739626  Eriogonum diclinum L. P. Janeway 2008-7-24 9479 a Siskiyou Klamath Ranges, Siskiyou Mtns, crest of the Mtn 2.1 air km NE of Condrey Mtn. 2115 Comment
  RSA0004987  Eriogonum diclinum Louis C. Wheeler 1934-9-1 3235 Siskiyou Siskiyou Mountains, Jaynes Canyon. 1951 Comment
  RSA237982  Eriogonum diclinum Frederick W. Oettinger 1969-9-4 1643 Siskiyou Little Medicine Mountain, north of Tobacco Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  HSC163  Eriogonum elatum var. elatum William J. Ferlatte 1966-8-2 241 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  UC163808  Eriogonum elatum var. villosum Geo. D. Butler 1910-7-29 1797 Siskiyou near Yreka Comment
  SD53392  Eriogonum hirtellum Darley F. Howe 1962-8-4 3385 Siskiyou Baldy Mt. 1431 Comment
  CAS-BOT-BC259365  Eriogonum lobbii John Thomas Howell 1937-7-24 13420 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC263658  Eriogonum luteolum var. luteolum A. A. Heller 1917-9-7 12975 Siskiyou Klamath River above the mouth of the Shasta River Comment
  CAS-BOT-BC263662  Eriogonum luteolum var. luteolum Carl B. Wolf 1927-8-26 1010 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CAS-BOT-BC263657  Eriogonum luteolum var. luteolum Doris K. Kildale 1925-9-6 1281 Siskiyou Somes Bar, junction of Salmon and Klamath Rivers Comment
  CAS-BOT-BC263661  Eriogonum luteolum var. luteolum Elmer I. Applegate 1923-9-6 3941 Siskiyou Along the Klamath River about 20 miles below the Pacific Highway Comment
  UC1299733  Eriogonum luteolum var. luteolum Freed W. Hoffman 1948-7-8 2564 Siskiyou 19.7 mi e on Klamath River road Happy Camp; North Coast Ranges Comment
  CAS-BOT-BC33575  Eriogonum marifolium L. E. Smith 1913-8-12 517 Siskiyou McCloud Comment
  POM165485  Eriogonum marifolium George B. Grant 1902-9-7 5091 Siskiyou Mt. Shasta 2439 Comment
  POM297994  Eriogonum marifolium A. A. Heller 1939-7-31 15429 Siskiyou Mt. Shasta Comment
  SD53333  Eriogonum marifolium D. F. Howe 1962-8-6 3406 Siskiyou Mt. Shasta 2438 Comment
  UC77434  Eriogonum marifolium Wm. M. Canby, Profs. C. S. Sargent and John Muir 1897-9-7 230 Siskiyou Mt. Shasta Comment
  UCD100380  Eriogonum marifolium Beecher Crampton 1956-8-22 3865 Siskiyou Wagon Camp Road, south slope of Mt. Shasta. 1828 Comment
  CAS-BOT-BC263181  Eriogonum marifolium var. cupulatum A. A. Heller 1914-8-28 11741 Siskiyou East side of Mt. Eddy 2194 Comment
  CAS-BOT-BC263182  Eriogonum marifolium var. cupulatum Alice Eastwood 1921-7-28 10884 Siskiyou Medicine Lake Comment
  POM316726  Eriogonum microtheca var. laxiflorum Patricia Wilder 1965-9-29 4194 Siskiyou Lava Beds National Monument; on path leading to top of Schonchin Butte. Tule Lake drainage area. 1494 Comment
  CAS-BOT-BC261622  Eriogonum nudum var. nudum A. A. Heller 1915-8-26 12246 Siskiyou Wagon Creek at the foot of Mt. Eddy 1127 Comment
  HSC27080  Eriogonum nudum var. nudum J. P. Smith, J. O. Sawyer 1972-9-13 5780 Siskiyou 0.5 mi. W of Cook and Green Pass on rd. to Lily Pad Lake. Comment
  CAS-BOT-BC269741  Eriogonum nudum var. oblongifolium Louis C. Wheeler 1935-6-29 3624 Siskiyou Yreka 807 Comment
  CAS-BOT-BC269742  Eriogonum nudum var. oblongifolium Lewis S. Rose 1945-6-19 45148 Siskiyou Horse Creek & Klamath River 502 Comment
  CDA22631  Eriogonum nudum var. oblongifolium E. Hale 1983-7-19 Siskiyou Yreka vicinity. 0 Comment
  UC375313  Eriogonum nudum var. pubiflorum Geo. D. Butler 1908-7-5 213 Siskiyou near Yreka Comment
  CAS-BOT-BC272477  Eriogonum nudum var. pubiflorum Elmer I. Applegate 1935-8-4 10024 Siskiyou Near Mammoth Crater, Medicine Lake road, Lava Beds National Monument Comment
  CAS-BOT-BC272478  Eriogonum nudum var. pubiflorum Elmer I. Applegate 1935-6-10 9473 Siskiyou Thomas massacre area, Lava Beds National Monument Comment
  CAS-BOT-BC272490  Eriogonum nudum var. pubiflorum Doris K. Kildale 1928-7-25 5874 Siskiyou Klamath River, between Brown's Resort & Gottville 579 Comment
  LA207005  Eriogonum pyrolifolium W. B. C. after Stokes; 1939-7-17 sn Siskiyou upper Panther Creek Meadows 2438 Comment
  HSC17400  Eriogonum roseum C. B. Wolf 1927-8-26 1082 Siskiyou Klamath River, 14 mi. above Happy Camp Comment
  CAS-BOT-BC267707  Eriogonum roseum Louis C. Wheeler 1934-9-19 3282 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  CAS-BOT-BC267708  Eriogonum roseum Louis C. Wheeler 1934-9-19 3282 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  UC1540132  Eriogonum spergulinum var. reddingianum Dean W. Taylor 1987-6-26 9076 Siskiyou 2 mi se Medicine Lake; Paynes Spring 1996 Comment
  CAS-BOT-BC269971  Eriogonum spergulinum var. reddingianum W. B. Cooke; V. G. Cooke 1975-9-3 50491 Siskiyou Ash Creek at Military Pass Road, East side of Mt. Shasta Comment
  CAS-BOT-BC269972  Eriogonum spergulinum var. reddingianum W. B. Cooke; V. G. Cooke 1966-7-17 37249 Siskiyou Vicinity of Inconstance Creek, Mt. Shasta 1828 Comment
  RSA126681  Eriogonum sphaerocephalum Peter H. Raven 1957-9-4 10375 Siskiyou Slope of metamorphic rocks, Sacromento-Trinity Pass south of Mout Eddy. 2256 Comment
  UC1442635  Eriogonum sphaerocephalum var. halimioides William J. Ferlatte 1978-5-28 1905 Siskiyou hills ne Yreka (0.4 mi e of Interstate 5, 0.2 mi n of Hwy. 3 on way to Montague) 830 Comment
  UC164306  Eriogonum sphaerocephalum var. halimioides Geo. D. Butler 1910-5-20 1371 Siskiyou Yreka Yreka Comment
  CHSC71593  Eriogonum strictum var. greenei Vernon H. Oswald; Lowell Ahart 1998-8-3 9407 Siskiyou USFS 41N03 0.2 mi east of its junction with Gazelle-Callahan Rd. 11.5 mi west of Gazelle. Roadside. 1524 Comment
  JEPS56425  Eriogonum strictum var. proliferum W. L. Jepson 1940-6-23 19980 Siskiyou Yreka 822 Comment
  UC164465  Eriogonum strictum var. proliferum Geo. D. Butler 1908-8-6 211 Siskiyou Independence Creek Comment
  UC609362  Eriogonum strictum var. proliferum Eleanor Burks Hart 1938-8-18 930 Siskiyou Boulder Peak 2535 Comment
  SEINET244751 Image available Eriogonum umbellatum James L. Reveal 2001-7-19 8348 Siskiyou Scott Valley, along South Kidder Creek Road 0.5 mile west-southwest of California Highway 3, about 6.1 air miles southwest of Fort Jones and 5.7 air miles north of Etna. 869 Comment
  HSC68577  Eriogonum umbellatum var. argus Maralyn A. Renner 1980-6-8 804 Siskiyou Slopes E of Hwy. 3 1341 Comment
  RSA12619  Eriogonum umbellatum var. argus Carl B. Wolf 1934-7-5 5966 Siskiyou 3 6/10 mi. from Dry Lake Lookout on rd. to Horse Creek, Siskiyou Mts. 1982 Comment
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Mar 29 2012
  UC909319  Eriogonum umbellatum var. argus Dorothy Parker 1948-8-16 182 Siskiyou near summit of Salmon Mountain 1813 Comment
  RSA0033766  Eriogonum umbellatum var. humistratum Barbara Ertter 1990-7-14 9327 Siskiyou Wagon Creek on E side of Mt. Eddy, ca. 4 airmiles W of Mt. Shasta City; open rocky dry ridge S of & above creek. 1950 Comment
  RSA50190  Eriogonum umbellatum var. humistratum E. K. Balls 1949-7-8 13914 Siskiyou Trail from Scott Mountain Camp to Carmen Lake; Scott Mountain. 1753 Comment
  HSC77247  Eriogonum umbellatum var. stellatum L. P. Janeway 1983-9-23 693 Siskiyou At Poker Flat 1524 Comment
  HSC77563  Eriogonum umbellatum var. stellatum L. P. Janeway 1983-9-11 660 Siskiyou Poker Flat 1524 Comment
  SEINET13095711  Eriogonum ursinum var. erubescens Unknown 2002-8-5 8371 Siskiyou Scott Bar Mountains, n and w slope and ridge of Deadwood Baldy Peak, Klamath National Forest. 1670 Comment
  UC1413437  Eriogonum vimineum James L. Reveal, Caroline G. Reveal 1974-8-17 3797 Siskiyou about 12 mi sw Gazelle (along the Callahan-Gazelle road, about 16 mi ne of Callahan) 1219 Comment
  HSC17387  Eriogonum vimineum R. C. Wunner 1965-7-9 362 Siskiyou California Lava Beds National Monument; 50 ft. on Black Crater Trail from jct. of Hardin Butte Trail 1341 Comment
  RSA254926  Eriogonum vimineum James L. Reveal, Caroline G. Reveal 1974-8-17 3796 Siskiyou Along California Highway 3, 4.5 mi. east of Callahan and 2.5 southeast of the junction with the county road to Gazeele 1372 Comment
  CAS-BOT-BC94804  Eriophyllum lanatum R. C. Wenk 2006-7-24 532 Siskiyou Scott Mtns., border between Trinity and Siskiyou Cos., along Pacific Crest Trail, 0.5 km E of Hwy. 3 1700 Comment
  POM358072  Eriophyllum lanatum var. achilleoides L. C. Wheeler 1934-6-2 2618 Siskiyou Oak Knoll ranger station, Klamath River; Mt. Diablo Mer. 671 Comment
  UC563835  Eriophyllum lanatum var. integrifolium Elmer I. Applegate 1935-6-10 9490 Siskiyou s cinder slope of Caldwell Butte; Lava Beds National Monument Comment
  UC60935  Eriophyllum lanatum var. integrifolium Geo. B. Grant 1902-9-1 5228 Siskiyou Shasta Springs Mount Shasta 609 Comment
  CAS-BOT-BC301706  Eriophyllum lanatum var. lanceolatum Philip A. Munz 1952-7-3 17920 Siskiyou Fort Goff Public Camp, Klamath River 365 Comment
  CAS-BOT-BC301709  Eriophyllum lanatum var. lanceolatum Geo. D. Butler 1908-7-20 298 Siskiyou Head of Long Gulch near Yreka Comment
  HSC58871  Eriophyllum lanatum var. lanceolatum Marvin Butler 1971-8-31 332 Siskiyou Near Youngs Valley, close to the town of Cave Junction 1403 Comment
  SJSU6503  Eriophyllum lanatum var. lanceolatum R. W. Trivelpiece 1972-6-18 125 Siskiyou Douglas Cr near Klamath R c. 9 mi SW of Happy Camp 807 Comment
  CAS-BOT-BC301714  Eriophyllum lanatum var. lanceolatum Doris K. Kildale 1929-7-20 8711 Siskiyou Trail from Elk Lick to Raspberry Lake, upper South Fork of Indian Creek 1828 Comment
  JEPS107286  Erodium cicutarium Lowell Ahart, John Dittes 2005-6-10 12058 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  UC2043245  Eryngium articulatum Barbara Ertter 1996-7-24 15023 Siskiyou Klamath River at mouth of Dillon Creek, Route 96 ca 14 air miles N of Somes Bar/Humboldt County line. Comment
  CAS-BOT-BC54572  Erysimum capitatum John Thomas Howell 1939-8-2 14883 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  CAS-BOT-BC54580  Erysimum capitatum Doris K. Kildale 1929-7-20 8698 Siskiyou Raspberry Lake, east spur Preston Peak. Comment
  HSC19561  Erysimum perenne J. O. Sawyer 1969-7-18 1156 Siskiyou E of Waterdog Lake 2012 Comment
  HSC91050  Erysimum perenne Jennifer Whipple 1978-10-6 2410 Siskiyou Slopes in the Eddy Creek drainage 2287 Comment
  CHSC1757  Erythranthe breweri M. Yoder 1941-7-21 Siskiyou Castle Lake. 1981 Comment
  SDSU10772  Erythranthe guttata D. F. Howe 1972-7-5 4872 Siskiyou 0.6 mile from Oregon State line on road to Happy Camp. 1707 Comment
  SD128722  Erythranthe moschata Darley F. Howe 1980-7-6 Siskiyou 1.3 mile south of Oregon state line on road to Happy Camp 1645 Comment
  CHSC33834  Erythranthe primuloides R. E. Preston 1981-8-22 141 Siskiyou N shore of Juanita Lake. 1556 Comment
  POM109651  Erythronium citrinum var. citrinum Geo D. Butler 1910-4-24 1239 Siskiyou Quartz Valley Comment
  SEINET12054366  Erythronium grandiflorum H. P. Chandler 1901-1 1619 Siskiyou near Marble Mt 2134 Comment
  CAS-BOT-BC133303  Erythronium klamathense W. R. Dudley 1893-6-19 s.n. Siskiyou Castle Lake, near Mt. Shasta Comment
  JEPS50874  Erythronium klamathense Wayne Roderick 1963-6-10 Siskiyou along trail from Castle Lake to Little Castle Lake 1828 Comment
  CAS-BOT-BC403671  Eschscholzia californica M. K. Curran 1887-7-1 s.n. Siskiyou Ager. Above Yreka towards Klamath Comment
  CAS-BOT-BC403672  Eschscholzia californica L. E. Smith 1914-6-9 715 Siskiyou Yreka Comment
  CAS-BOT-BC403684  Eschscholzia californica Mrs. H. C. Cantelow 1936-5-30 1365 Siskiyou Bet. Yreka and Fort Jones Comment
  SD51280  Eschscholzia californica Darley F. Howe 1961-8-3 3130 Siskiyou 35.3 miles east of Happy Camp on Highway 96. 456 Comment
  HSC57384  Eucephalus ledophyllus Overton, Butler 1979-7-26 10111 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  SD241733  Eucephalus ledophyllus Dean Wm. Taylor 1999-8-12 17314 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley). 1890 Comment
  CAS-BOT-BC310456  Eucephalus ledophyllus var. covillei W. R. Dudley 1901-8-18 s.n. Siskiyou Jackson's Lake, Salmon Mts. Comment
  CAS-BOT-BC310459  Eucephalus ledophyllus var. ledophyllus K. T. Stillman 1976-9-9 470 Siskiyou Marble Mountain Wilderness Area. N & NE & E side of Black Mtn. Comment
  HSC473  Eucephalus ledophyllus var. ledophyllus William J. Ferlatte 1966-8-3 298 Siskiyou Yellow Rose Mine 1982 Comment
  HSC69416  Eucephalus ledophyllus var. ledophyllus John S. Palmer 1980-8-13 758 Siskiyou Dead Cow Creek, near FS 47N44 from Beaver Creek Rd. 1616 Comment
  CAS-BOT-BC202765  Euonymus occidentalis Dorothy Parker 1951-7-15 s.n. Siskiyou Along banks of Etna Creek 883 Comment
  RSA237264  Euonymus occidentalis Frederick W. Oettinger 1967-6-28 131 Siskiyou Kelly Gulch (tributary to Salmon River). The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  RSA480970  Euphorbia lathyris W. Bridge Cooke 1940-6-20 15153 Siskiyou Along the Pacific Highway (US99) in the Klamath River Gorge below Hornbrook. 610 Comment
  HSC41525  Euphorbia marginata Linda M. Barker 1976-9-6 1698 Siskiyou Scott Valley, in flood plain near the dredge. 945 Comment
  CDA34223  Euphorbia oblongata Jodi Aceves 2010-8-3 PDR# 1414045 Siskiyou At Klamath River, upstream from Somesbar. 0 Comment
  JEPS31913  Eurybia radulina Geo. D. Butler 1908-7-22 293 Siskiyou roadside w of Forest House Mountain Comment
  CAS-BOT-BC278730  Festuca idahoensis Lewis S. Rose 1945-6-18 45070 Siskiyou Horse Creek & Klamath River 502 Comment
  JEPS107387  Festuca idahoensis Lowell Ahart, John Dittes 2005-6-10 12100 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  SEINET238827 Image available Festuca idahoensis Barbara L. Wilson 1996-6-21 8151 Siskiyou Shasta-Trinity National Forest; Coonrod Flat 1.4 miles straight east of Forest Service road 13 on Forest Service road 4 Comment
  UC1483422  Festuca idahoensis John Palmer 1980-8-15 1023 Siskiyou ne of Seiad Low Gap (on spur of F.S. Rd 46N50); Klamath National Forest, Seiad Valley Quad. 1463 Comment
  UC1483448  Festuca idahoensis J. Sawyer and J. Cole 1980-7-22 3944 Siskiyou nw slopes Cedar Mt.; Klamath National Forest, Bray Quad., Cedar Mt. 1524 Comment
  UCSC000033  Festuca idahoensis H. S. Yates 1936-6-21 5826 Siskiyou North base of Wintoon Butte 1219 Comment
  HSC13  Festuca occidentalis William J. Ferlatte 1966-6-22 108 Siskiyou 3 mi. S of Big Flat 1585 Comment
  HSC41064  Festuca occidentalis J. O. Sawyer 1969-6-11 810 Siskiyou Ridge S of Paynes Lake Creek. 1326 Comment
  CAS-BOT-BC278917  Festuca ovina C. L. Hitchcock; J. S. Martin 1939-7-9 5321 Siskiyou 1/2 mile southeast of King's Castle, Marble Mts. 1828 Comment
  UC70746  Festuca pratensis T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  UC593534  Festuca roemeri E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2008 Siskiyou about 1.5 mi w Mt. Shasta City (above Sulloway Creek, e and ne slope of spur of Rainbow Ridge); Rainbow Ridge 1188 Comment
  UC1265442  Festuca subulata Frederick W. Oettinger 1969-9-4 1629 Siskiyou e side Hancock Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  UC859959  Fragaria vesca A. A. Heller 1916-6-20 12406 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  HSC59619  Fragaria vesca J. P. Smith, Steve Selva 1970-6-16 4007 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  CAS-BOT-BC457570  Fragaria vesca subsp. californica Doris K. Kildale 1929-4-27 7555 Siskiyou Cecilville Comment
  HSC68992  Frangula californica Maralyn A. Renner 1980-7-28 2170 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  CAS-BOT-BC53257  Frangula californica subsp. californica Wm. Bridge Cooke 1938-8-5 11436 Siskiyou MacBride Spring Road 1524 Comment
  CAS-BOT-BC53415  Frangula californica subsp. occidentalis Edward Lee 1934-8-13 1060 Siskiyou Happy Camp to Waldo (Oregon) road, watershed of West Branch of Indian Creek, Klamath National Forest 1219 Comment
  UC375205  Fritillaria affinis Geo. D. Butler 1910-3-15 1348 Siskiyou Greenhorn Mountain Comment
  HSC19059  Fritillaria atropurpurea J. O. Sawyer 1969-7-16 1147 Siskiyou W of Waterdog Lake 2073 Comment
  UC429285  Fritillaria atropurpurea Annie M. Alexander and L. Kellogg 1911-6-17 151 Siskiyou Jackson Lake Comment
  POM109736  Fritillaria atropurpurea Geo D. Butler 1910-4-24 1235 Siskiyou Kidder Creek Comment
  HSC61605  Fritillaria glauca Ruby Van Deventer 6 Jun [year missing] Siskiyou Lookout Mountain 1768 Comment
  SEINET3886824  Fritillaria recurva James P. Smith 1974-5-26 7542 Siskiyou Copco Quad. Along Forest Service Road 47N04.; 0 1524 Comment
  CHSC91392  Galium aparine Lowell Ahart; John Dittes 2005-6-10 12091 Siskiyou Rocky hill, north of the rock fence, about 200 yards east of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  UCR104584  Galium aparine J. A. Alexander, F. N. McBain, N. A. Alexander 1996-3-31 484 Siskiyou Along an old road on the north side of Pioneer Bridge, California Highway 263, Shasta River Canyon, Shasta River 1000 Comment
  UC618908  Galium bifolium W. Bridge Cooke 1938-7-1 11146 Siskiyou below Wagon Camp (near creeks); Mount Shasta Comment
  UC223987  Galium bolanderi Dr. Edward Palmer Jul 15 1892-Jul 27 1892 2498 Siskiyou Mount Shasta and vicinity Comment
  HSC43142  Galium bolanderi Ken Stillman 1976-8-24 419 Siskiyou E and N slopes of Williams Point 366 Comment
  JEPS52697  Galium bolanderi G. L. Stebbins Jr. 1963-7-7 6138 Siskiyou 4.7 mi sw Callahan (on road to Cecilville, s-facing slope) Comment
  RSA238704  Galium bolanderi Frederick W. Oettinger 1969-8-3 1144 Siskiyou Above the stock gate between Willow Springs and English Lake (approx 200 ft above trail). The Salmon Mtns. The High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  CHSC57454  Galium boreale subsp. septentrionale L. P. Janeway 1984-6-21 861 Siskiyou Garvey Bar, south side Klamath River just east of Humbug Point. 594 Comment
  JEPS87641  Galium boreale subsp. septentrionale Vernon H. Oswald and Lowell Ahart 1994-8-10 6459 Siskiyou FS 40N39 ca. 0.5 mi w Harris Spring Rd. (FS15) (ca 4 air mi nne of Bartle); Bartle Creek, Stillwater Meadows 1359 Comment
  RSA202646B  Galium glabrescens subsp. glabrescens F. Ehrendorfer, G. Ledyard Stebbins 1959-6-29 5915 Siskiyou W flank of Scott Mtn. 1921 Comment
  CAS-BOT-BC223192  Galium serpenticum subsp. scotticum Alice Eastwood; John Thomas Howell 1937-6-25 5021 Siskiyou Scott Mts. s. of Callahan Comment
  UC139339  Galium trifidum Copeland 1903-8-13 3888 Siskiyou Sisson Comment
  CAS-BOT-BC182245  Garrya fremontii C. B. Wolf 1931-9-2 s.n. Siskiyou 4 miles above junction of McCloud Road with the Pacific Highway 1188 Comment
  RSA2866  Garrya fremontii Carl B. Wolf 1931-9-2 2392 Siskiyou 4 miles above jct of MCloud road with Pacific Hwy and Transition. 1189 Comment
  RSA467221  Gaultheria humifusa L. C. Wheeler 1934-8-16 3164 Siskiyou Johnson Dairy, Siskiyou Mts. 1646 Comment
  HSC65278  Gaultheria ovatifolia Rich White 1977-6-4 81 Siskiyou 1/2 mi. from Buck Lake 1244 Comment
  UC1096799  Gayophytum diffusum subsp. parviflorum Barbe 1957-7-13 378 Siskiyou Big Flat Public Camp North Bay Counties, Klamath National Forest (along path to the spring at w side of camp) 1524 Comment
  POM254607  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1940-8-22 15485 Siskiyou Mount Shasta: Squaw Valley Creek meadows 2439 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
  RSA68901  Gayophytum diffusum subsp. parviflorum A. E. Culbertson 1943-7-21 56 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi. S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts. 2000 ft. above Sacramento R. within 10 mi. of its headwaters to the west. 1657 Comment
  POM355343  Gayophytum eriospermum E. Yale Dawson 1948-7-16 5097 Siskiyou Grass Lake; Margins of Grass Lake, a drying, vernal lake north of Mount Shasta 1524 Comment
  UC454602  Gayophytum heterozygum I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  HSC76977  Gayophytum humile K. T. Stillman 1976-6-25 42 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  SBBG21797  Gayophytum humile D. Myrick 1964-7-25 955 Siskiyou Shasta Ski Bowl Hwy 1219 Comment
  HSC76722  Gentiana calycosa K. T. Stillman 1976-8-7 386 Siskiyou Marble Mountain Wilderness Area Comment
  HSC524  Gentiana newberryi William J. Ferlatte 1966-8-17 388 Siskiyou Caribou Basin 1982 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
  RSA238866  Gentiana plurisetosa Frederick W. Oettinger 1968-8-17 562 Siskiyou Bear Meadow, mid-way between Tom Taylor Cabin and English Peak Lookout. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  CHSC675  Geranium oreganum 1936-6-23 Siskiyou Mt. Shasta City. 1066 Comment
  HSC75190  Geum triflorum K. T. Stillman 1976-6-26 111 Siskiyou Marble Mountain Wilderness Area 2073 Comment
  HSC46241  Gilia capitata Jennifer Whipple 1978-6-5 2324 Siskiyou Weston Gulch in Scott Valley 854 Comment
  RSA105502  Gilia capitata G. D. Barbe 1955-6-28 026 Siskiyou 1.5 miles north of Callahan 1006 Comment
  UC163988  Gilia capitata subsp. capitata Geo. D. Butler 1908-8-6 32 Siskiyou along trail summit above Cold Spring Woolly Creek; above Cold Spring Woolly Creek Comment
  UCD117779  Gilia latiflora subsp. davyi J. T. Howell; T. C. Fuller, G. D. Barbe 1980-5-20 2777 Siskiyou west of Motel 6, south of town, north of Greenhorn Creek Road, Yreka. 822 Comment
  JEPS11817  Githopsis specularioides Geo. D. Butler 1909-4-26 613 Siskiyou Oro Fino Comment
  SEINET10934814  Glyceria cookei William B. Cooke 1940-7-12 Cooke 15312 Siskiyou Box Canyon of Sacramento River near Shasta City Comment
  HSC22314  Glyceria elata J. O. Sawyer 1969-8-5 1774 Siskiyou W of Little Duck Lake 2073 Comment
  HSC73325  Glyceria elata Gail Newton 1980-6-20 485 Siskiyou Near Bald Mtn. 250 Comment
  UC1161520  Glyceria elata J. M. Tucker 1963-8-19 3774 Siskiyou Canyon Creek Marble Mountain Wilderness Area (headwaters of Canyon Creek) 1950 Comment
  UC618879  Glyceria elata unknown 1938-6-24 11083 Siskiyou MacBride Spring; Mount Shasta Comment
  CDA28233  Glyceria elata T. C. Fuller 1975-10-23 20114 Siskiyou North side of Klamath River Hwy, Hwy 96, 1 mile west of Happy Camp. 0 Comment
  UCD66793  Glyceria occidentalis P. B. Kennedy 1923-7-29 Siskiyou By Camp - Sisson. Comment
  RSA238377  Glyceria striata Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1283 Siskiyou Upper edge of Sundew Bog, English Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SD53391  Glyceria striata Darley F. Howe 1962-8-4 3387 Siskiyou Baldy Mt., pool of water 1524 Comment
  CAS-BOT-BC302672  Gnaphalium palustre Geo. D. Butler 1910-6-12 1560 Siskiyou Yreka Creek Comment
  CHSC29309  Gnaphalium palustre J. D. Prouty; A. W. Ratcliff 1979-8-2 79 .93 Siskiyou Vernal pool, roadside, Hwy. 49, ca. 20 mi ne of jct. with Hwy. 89. 1645 Comment
  HSC68353  Gnaphalium palustre J. P. Smith, Steve Selva 1970-7-16 4437 Siskiyou Along Klamath River, 2 mi. W of Seiad Creek 518 Comment
  UC637148  Gnaphalium palustre Edward Lee 1934-8-15 1136 Siskiyou summit of road between Waldo (Oregon) and Happy Camp; Klamath National Forest, Indian Creek watershed 1615 Comment
  CAS-BOT-BC302671  Gnaphalium palustre Doris K. Kildale 1928-7-4 5535 Siskiyou 1 1/2 miles east of summit between Sawyers Bar & Etna Comment
  UC1409287  Gnaphalium palustre Frederick W. Oettinger 1969-9-1 1572 Siskiyou Dry Lake, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area, Dry Lake 2026 Comment
  UC4514  Goodyera oblongifolia unknown 1862-9-16 1404 Siskiyou Mount Shasta 1219 Comment
  JEPS24021  Goodyera oblongifolia Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6883 Siskiyou at junction of Happy Camp-Takilma Road and Poker Flat Road (Siskiyou Mountains); Siskiyou Mountains 1376 Comment
  CHSC96006  Hackelia bella L. P. Janeway 2006-7-3 8774 Siskiyou Klamath Ranges. Salmon Mountains; south side of upper Carter Meadows 0.5 km west of Carter Meadows Summit. 1798 Comment
  UC1186477  Hackelia bella John H. Weiler, A. P. Nelson 1960-6-26 60221 Siskiyou 0.6 mi n of Bacon Rind Public Camp (s of Sawyers Bar) Comment
  UCD119376  Hackelia californica K. M. Meyer; A. Townesmith 2007-7-29 170 Siskiyou Shasta-Trinity National Forest. 0.3 mi. on 40N25 Rd., off Siskiyou County Rd., A10/Everitt Memorial Hwy. 1805 Comment
  HSC25411  Hackelia micrantha J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5692 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  HSC61913  Hackelia micrantha Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  POM254142  Hackelia micrantha C. L. Hitchcock 1939-7-9 5338 Siskiyou 2 miles south of Black Mt., near Kings Castle. 1829 Comment
  CHSC4164  Hastingsia alba R. Carter 1966-5-15 408 Siskiyou 1.7 mi. SE of Calahan, 1.1 mi. S of intersection of Calahan-Gazelle Rd. and Old Oregon Stage Rd. 1310 Comment
  JEPS62095  Hastingsia alba W. L. Jepson 1914-8-13 5789 Siskiyou Sisson 1097 Comment
  CAS-BOT-BC504595  Hastingsia alba David D. Keck 1949-7-20 6364 Siskiyou Meadow at Scott Mountain Summit, at Trinity County line 1633 Comment
  CAS-BOT-BC302457  Hazardia whitneyi var. discoidea Louis C. Wheeler 1934-8-5 3045 Siskiyou Condrey Mt., Siskiyou Mts. 2164 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
  CAS-BOT-BC306743  Helenium bigelovii D. M. Traugh 1933-8-4 2 Siskiyou Shackelford [Shackleford] Creek near Dry Lake Comment
  UC637159  Helenium puberulum Edward Lee 1934-8-12 1050 Siskiyou near mouth Walker Creek (e end of valley. Creek a tributary of the Klamath River); Seiad Valley 426 Comment
  HSC82585  Helianthella californica Thomas W. Nelson, Jane P. Nelson 1979-5-26 4710 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  UC54090  Helianthella californica subsp. shastensis H. M. Hall and E. B. Babcock 1903-6-1 4056 Siskiyou near Sisson; Mt. Shasta 1066 Comment
  UC585080  Helianthella californica subsp. shastensis E. B. Babcock and G. L. Stebbins Jr. 1936-6-13 1996 Siskiyou about 1 1/2 mi w Mt. Shasta City (e and ne slope of spur ofRainbow Bridge above Sulloway Creek) 1180 Comment
  RSA68881  Helianthella californica var. shastensis A. E. Culbertson 1943-7-1 75 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts.; 2000' above Sacramento. within 10 air miles of its headwaters to the west. Comment
  UCD132926  Helianthus Ben Beard 1978-1 HSP 09 A Siskiyou near Mt. Shasta. Comment
  CAS-BOT-BC305576  Helianthus bolanderi Doris Overman 1919-9-1 s.n. Siskiyou Yreka Comment
  JEPS34862  Helianthus bolanderi Geo. D. Butler 1908-7-14 506 Siskiyou near Yreka (Butler's Ranch) Comment
  UCR24849  Helianthus bolanderi John C. Roos 1948-9-2 3977 Siskiyou Fort Jones 915 Comment
  CHSC91351  Heliotropium curassavicum Lowell Ahart; John Dittes 2005-6-9 12038 Siskiyou Rocky hill, about 20 yards north 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
  CDA3752  Hesperis matronalis William J. Ferlatte 1990-5-23 Siskiyou Old Edgewood Road near railroad undercrossing, Edgewood. 0 Comment
  RSA256713  Hesperochiron pumilus J. P. Smith 1974-5-26 7564 Siskiyou Along Forest Service Road 47N03. 1524 Comment
  JEPS101011  Hesperolinon micranthum Dean W. Taylor 1987-6-24 9051 Siskiyou Tom Young Flat 1280 Comment
  POM59065  Heterocodon rariflorum E. B. Copeland 1903-9-6 3847 Siskiyou Igerna. 1159 Comment
  SEINET10460683  Heterocodon rariflorum Butler 1910-7-8 BUTLER 1662 Siskiyou SHACKELFORD CR. 1219 Comment
  CAS-BOT-BC312295  Heterotheca villosa var. minor John Thomas Howell 1934-7-4 12405 Siskiyou SE corner of Siskiyou Co. Comment
  CAS-BOT-BC420705  Heuchera merriamii Gilbert Muth 1969-8-6 1185 Siskiyou Boulder Peak Comment
  CAS-BOT-BC420733  Heuchera merriamii Gilbert Muth 1965-8-11 s.n. Siskiyou In upper meadows, Marble Valley Comment
  HSC20188  Heuchera merriamii Dorothy Parker 1949-8-3 353 Siskiyou Bluff above Paradise Lake, Salmon Mtn. 1982 Comment
  HSC68539  Heuchera micrantha Maralyn A. Renner 1980-6-25 1108 Siskiyou Little South Fork Indian Creek, W Fork 1220 Comment
  CAS-BOT-BC425005  Heuchera micrantha var. micrantha Doris K. Kildale 1929-5-12 7794 Siskiyou Sawyers Bar on North Fork of Salmon River 609 Comment
  RSA0063199  Heuchera micrantha var. micrantha Frederick W. Oettinger 1969-9-4 1664 Siskiyou S side of Tobacco Lake Basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtns Wilderness Area. 1829 Comment
  CAS-BOT-BC319686  Hieracium albiflorum L. E. Smith 1913-7-1 449 Siskiyou Dunsmuir Comment
  CAS-BOT-BC319689  Hieracium albiflorum E. C. Johnston 1931-8-1 s.n. Siskiyou Mouth of Klamath River Comment
  RSA237530  Hieracium gracile Frederick W. Oettinger 1969-9-5 1673 Siskiyou Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  HSC42931  Hieracium greenei Ken Stillman 1976-8-31 451 Siskiyou E and N sides of Williams Point 366 Comment
  UC1408810  Hieracium greenei Frederick W. Oettinger 1968-9-3 688 Siskiyou English Peak; Marble Mountain Wilderness Area 2011 Comment
  HSC29282  Hieracium greenei Frederick W. Oettinger 1968-9-3 688 Siskiyou Marble Mtn. Wilderness Area, ridge to English Peak 2012 Comment
  RSA215623  Hieracium greenei Gilbert Muth 1969-8-7 1268 Siskiyou On east side of Boulder Peak Ridge. 2470 Comment
  UC572808  Hieracium horridum unknown 1937-8-17 9257 Siskiyou Mt. Shasta 2590 Comment
  HSC2411  Hieracium scouleri William J. Ferlatte 1966-8-5 340 Siskiyou Caribou Mtn. 2470 Comment
  CAS-BOT-BC316033  Hieracium scouleri A. A. Heller 1905-6-22 8088 Siskiyou Along the railroad near Igerna Comment
  HSC41090  Hieracium scouleri J. O. Sawyer 1969-8-18 1985 Siskiyou Near trail below S Sugar Lake 2073 Comment
  HSC4857  Holodiscus discolor J. O. Sawyer 1968-9-10 690 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  JEPS46111  Holodiscus discolor Duncan Dunning 1923-6-16 Siskiyou Happy Camp; northwestern Siskiyou County Comment
  RSA105338  Holodiscus discolor G. D. Barbe 1955-8-4 357 Siskiyou About 0.5 mi west of Big Flat on the trail to Caribou Lake. Salmon Mtns. 1524 Comment
  UC375382  Holodiscus discolor Geo. D. Butler 1908-7-12 1100 Siskiyou Humbug Mountain Comment
  HSC26577  Holodiscus microphyllus var. glabrescens J. P. Smith 1972-8-18 5750 Siskiyou Medicine Lake Glass Flow 2012 Comment
  POM141569  Holodiscus microphyllus var. glabrescens E. B. Copeland 1903-10-11 6443 Siskiyou Mt. Eddy Comment
Read comments
Jan 23 2011
  HSC92533  Hordeum brachyantherum Jennifer Whipple 1976-7-24 1539 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2195 Comment
  HSC10183  Hordeum jubatum R. C. Wunner 1965-8-14 417 Siskiyou Lava Beds National Monument. Near tip of Hovey Pt. 1220 Comment
  JEPS107373  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
  CAS-BOT-BC143943  Horkelia daucifolia A. A. Heller 1927-5-14 14384 Siskiyou Shasta Valley, near Gazelle Comment
  HSC34008  Horkelia daucifolia var. daucifolia J. P. Smith 1974-5-25 7509 Siskiyou Along Rd. 8, 2.4 mi. W of its junction with Hwy. 3 976 Comment
  HSC46217  Horkelia daucifolia var. daucifolia Jennifer Whipple 1978-6-5 2325 Siskiyou Weston Gulch in Scott Valley 854 Comment
  RSA739867  Horkelia fusca subsp. parviflora L. P. Janeway, B. Castro 2007-7-28 9127 Siskiyou High Cascade range, Medicine Lake Highlands, W side of Arnica Sink 6.km W of Glass Mtn. 2042 Comment
  UC481107  Horkelia fusca subsp. parviflora Annie M. Alexander and Louise Kellogg 1911-7-16 251 Siskiyou S. Fork Salmon River 1524 Comment
  UCR52573  Horkelia tridentata 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
  CHSC91346  Hornungia procumbens Lowell Ahart; John Dittes 2005-6-9 12044 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CAS-BOT-BC201135  Hosackia crassifolia Wm. Bridge Cooke 1940-6-7 15089 Siskiyou Along the Pacific Highway between Black Butte and Mount Shasta City Comment
  HSC71654  Hosackia oblongifolia var. oblongifolia J. P. Smith, Steve Selva 1970-6-15 3981 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  HSC82352  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4525 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  UC618665  Hulsea nana W. Bridge Cooke 1938-7-28 11363 Siskiyou North Ridges Comment
  HSC61785  Hydrophyllum occidentale Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  CHSC106092  Hymenoxys lemmonii Lowell Ahart; John Dittes 2010-7-30 16972 Siskiyou On moist soil of riparian terraces, Shasta Big Springs Ranch, 2.6 miles (air) northwest of Big Springs Lake, 3.9 miles (air) southeast of Grenada, 6.3 miles (air) northwest of Dwinnel Dam. 778 Comment
  HSC22101  Hypericum anagalloides J. O. Sawyer 1969-7-11 1333 Siskiyou S Sugar Creek 1829 Comment
  SD88323  Hypericum perforatum Darley F. Howe 1972-7-8 Siskiyou 7.7 miles north of Weed, on Highway 97. 1157 Comment
  CAS-BOT-BC401284  Hypericum perforatum Carl B. Wolf 1927-8-26 1094 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  RSA25624  Iliamna bakeri Carl B. Wolf 1941-7-26 11073 Siskiyou 10.3 miles NE of Weed along Hwy 97 915 Comment
  UC106647  Ipomopsis aggregata A. Eastwood 1893-8-10 Siskiyou Mt. Shasta Comment
  UC1408777  Ipomopsis aggregata Frederick W. Oettinger and R. F. Thorne 1969-8-8 1282 Siskiyou near English Lake Salmon Mountains, Marble Mountain Wilderness Area (upper edge of Sundew Bog) 1828 Comment
  RSA463113  Ipomopsis aggregata S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  UCR37902  Ipomopsis congesta K. T. Stillman 1976-8-9 219 Siskiyou Marble Moutian Wilderness area 2134 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
  SEINET4898742  Iris chrysophylla J. Seely s.n. Siskiyou Klamath National Forest Comment
  SEINET10529086  Iris hartwegii Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6979 Siskiyou Western yellow pine, libocedrus, douglas fir forest, 6 mi. Sw of callahan 1524 Comment
  CAS-BOT-BC133543  Iris hartwegii W. R. Dudley 1893-6-12 s.n. Siskiyou Wm. Creek Comment
  CHSC75691  Isatis tinctoria Vernon H. Oswald; Lowell Ahart 1999-7-5 9804 Siskiyou Gazelle-Callahan Hwy. 11.3 mi west of Gazelle, 0.2 mi east of summit of Gazelle Mtn. Roadside. 1188 Comment
  CHSC96097  Isatis tinctoria L. P. Janeway 2006-7-3 8761 Siskiyou Klamath Ranges. Salmon Mountains; along Music Creek Trailhead Road at upper crossing of Music Creek. 1716 Comment
  CAS-BOT-BC57676  Isoetes bolanderi John Thomas Howell 1937-7-29 13669 Siskiyou North side of Scott Mt. Comment
  HSC69130  Isoetes bolanderi Maralyn A. Renner 1980-7-24 2078 Siskiyou Lily Pad Lake 1768 Comment
  HSC30622  Isoetes bolanderi Frederick W. Oettinger 1969-8-21 1474 Siskiyou Near Ethel Lake, Salmon Mtns. 1738 Comment
  UC1408843  Isoetes echinospora Frederick W. Oettinger 1968-8-5 708 Siskiyou boreal meadow above Diamond Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 2072 Comment
  CDA24281  Isopyrum stipitatum F. D. Horn 1978-3-1 Siskiyou West of Hawkinsville, along North Humbug Road, north of Yreka. 0 Comment
  HSC85693  Ivesia pickeringii J. P. Smith 1980-8-24 10345 Siskiyou Klamath National Forest. SR 3, 2.7 miles from Scott Mtn. summit, at road to Carmen Lake 1341 Comment
  JEPS116580  Juncus Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -021 Siskiyou The Eddys, west of Mt. Shasta. wet seep adjacent to unmamed tributary to Middle Fork of upper Sacramento River, along Forest Service Rd. 40N64 ca. 1/2 mi N of Middle Fork crossing; Mt. Eddy 1693 Comment
  HSC61923  Juncus acuminatus Ruby Van Deventer 1959-1-9 Siskiyou Poker Flat 1585 Comment
  CHSC60615  Juncus articulatus L. P. Janeway 1983-9-23 696 Siskiyou Along edge of Rd 18N33 ca 6 mi form Grayback Road. 1432 Comment
  RSA577914  Juncus balticus subsp. ater L. C. Wheeler 1935-6-23 3593 Siskiyou Shasta River, 2 miles NW Montague. 884 Comment
  CHSC91349  Juncus bufonius var. bufonius Lowell Ahart; John Dittes 2005-6-9 12055 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  HSC30703  Juncus drummondii Frederick W. Oettinger 1968-8-2 360 Siskiyou Marble Mtn. Wilderness Area, E shore of Diamond Lake 2073 Comment
  LA19938  Juncus drummondii Wm. Bridge Cooke; 1939-7-13 13655 Siskiyou Mt. Shasta, near Squaw Creek 2285 Comment
  RSA22443  Juncus drummondii J. T. Howell 1937-7-24 13425 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  CAS-BOT-BC110121  Juncus dudleyi Edward Lee 1934-8-11 1025 Siskiyou Walker Creek, a tributary of the Klamath River (east end of Seiad Valley). 457 Comment
  CAS-BOT-BC110122  Juncus dudleyi Melissa A. Berry 1957-7-8 s.n. Siskiyou North Fork of the Salmon River, Somes Bar-Etna Road. 609 Comment
  HSC77132  Juncus effusus subsp. pacificus L. P. Janeway 1983-7-2 363 Siskiyou SE side of Klamath River, 6 mi. E on China Creek Rd., near Happy Camp, near water's edge 335 Comment
  HSC30708  Juncus hemiendytus var. hemiendytus Frederick W. Oettinger 1969-8-15 1386 Siskiyou Marble Mtn. Wilderness Area, inlet of Upper English Lake 1768 Comment
  HSC96561  Juncus mertensianus Gordon Leppig, J. Kalt 1996-7-10 377 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  LA20046  Juncus mertensianus F. J. Hermann; 1939-8-8 13818 Siskiyou Mount Shasta, around the upper Horse Camp Springs 2514 Comment
  UC1026899  Juncus nevadensis F. J. Hermann 1940-8-8 15444 Siskiyou near Squaw Valley Creek; Mount Shasta Comment
  UC1100994  Juncus nevadensis Herbert L. Mason 1948-7-18 13614 Siskiyou Grass Lake Comment
  UC1258472  Juncus nevadensis Maralyn A. Renner 1980-8-19 2492 Siskiyou s side Caribou lake; Klamath National Forest, Coffee Creek Quad. Comment
  UC842741  Juncus occidentalis Louis C. Wheeler 1934-8-17 3185 Siskiyou n side White Mt.; Siskiyou Mountains 1828 Comment
  HSC67452  Juncus orthophyllus J. P. Smith, Steve Selva 1970-7-18 4485 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  HSC69218  Juncus orthophyllus Maralyn A. Renner 1980-8-31 2625 Siskiyou Twin Valley. 1494 Comment
  RSA240065  Juncus xiphioides Frederick W. Oettinger 1969-8-12 1335 Siskiyou Near The Cedars on North Fork of Salmon River. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 915 Comment
  CAS-BOT-BC81133  Juniperus communis Louis C. Wheeler 1934-8-14 3123 Siskiyou south slope 1/2 mile west White Mt., Siskiyou Mts. 1920 Comment
  JEPS57169  Juniperus communis L. R. Heckard 1967-8-13 1707 Siskiyou Mt. Eddy 2743 Comment
  LA6569  Juniperus communis var. saxatilis Wm. Bridge Cooke; 1939-7-26 13743 Siskiyou above Panther Creek Meadows 2590 Comment
  CHSC32927  Juniperus occidentalis J. P. Smith; Steve Selva 1970-8-8 4550 Siskiyou Juanita Lake. Comment
  HSC27232  Juniperus occidentalis J. P. Smith, J. O. Sawyer 1971-9-18 4806 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  HSC37540  Juniperus occidentalis J. P. Smith 1974-5-27 7603 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC202176  Juniperus occidentalis Geo. D. Butler 1909-12-10 1112 Siskiyou Klamath Hills Comment
  UC483416  Juniperus occidentalis M. G. Anderson 1902-3-4 Siskiyou between Yreka and Humbug Creek Comment
  CAS-BOT-BC81243  Juniperus occidentalis W. R. Dudley 1899-8-21 s.n. Siskiyou Along the stage road to Callahan's (Willow Creek) Comment
  POM252951  Juniperus occidentalis var. occidentalis A. A. Heller 1938-7-12 15262 Siskiyou 2 miles north of Bray Comment
  CHSC30111  Kalmia polifolia subsp. microphylla M. S. Taylor 1980-6-4 2789 Siskiyou Cedar Lake, ca. 11 mi sw of Mt. Shasta City. 1737 Comment
  SFV17491  Keckiella corymbosa P. Wilson 1998-7-25 3549 Siskiyou Highway 96 west of Happy Camp. Mile marker 35.50. 400 Comment
  CAS-BOT-BC246176  Keckiella lemmonii A. A. Heller 1916-7-23 12493 Siskiyou Dunsmuir, along the road 640 Comment
  CAS-BOT-BC246179  Keckiella lemmonii Geo. B. Grant 1902-9-13 5189 Siskiyou Dunsmuir Comment
  HSC8130  Kelloggia galioides Richard Spjut 1970-7-17 464 Siskiyou 16 mi. W of Mt. Shasta Lake, in campground at lake 1829 Comment
  JEPS82322  Kelloggia galioides Roger Raiche 1982-7-8 20589 A Siskiyou above Lily Pad Lake; Cook and Green Pass 1828 Comment
  RSA238887  Kelloggia galioides Frederick W. Oettinger 1968-9-9 807 Siskiyou On the NE side of the saddle between Toms Lake Basin and Tobacco Lake Basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness. 1951 Comment
  UC1177930  Kelloggia galioides Francia Chisaki and Gene B. Newcomb 1958-6-22 1153 Siskiyou base of Black Butte (Highway 99, e of the road) Comment
  UC618723  Kelloggia galioides unknown 1938-6-24 11078 Siskiyou MacBride Spring; Mount Shasta Comment
  SD64363  Kochia scoparia Darley F. Howe 1966-8-27 4308 Siskiyou 3.2 miles north of Tule Lake. 1310 Comment
  SEINET212850 Image available Koeleria macrantha L. E. Detling 1959-6-7 8213 Siskiyou Brush Cr near Klamath River 716 Comment
  UC909329  Koeleria macrantha Dorothy Parker 1948-8-19 Siskiyou summit of Scott Mountain 1582 Comment
  UC1409490  Kopsiopsis strobilacea Frederick W. Oettinger 1967-8-21 299 Siskiyou The High Lake Basins in the Vicinity of English Peak Marble Mountain Wilderness Area. Approx. 20 yd south of Tom Taylor Cabin--Pine Lake trail heading towards Pine Lake. Comment
  CAS-BOT-BC499660  Kopsiopsis strobilacea Ira L. Wiggins 1955-7-23 13479 Siskiyou Ridge W of China Creek 1066 Comment
  JEPS25832  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-BC349851  Lactuca tatarica subsp. pulchella T. C. Fuller 1967-8-15 16260 Siskiyou 4 mi. n.e. of Macdoel Comment
  RSA715638  Lagophylla ramosissima L. Ahart, John Dittes 2005-6-9 12016 Siskiyou On the east side of a poor rock fence, about 350 yards E of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2.5 miles (air) ESE of Grenada. 775 Comment
  OBI53785  Lagophylla ramosissima David J. Keil, Kathleen Keil 1992-7-20 23473 Siskiyou W side of Scott Valley, 4.9 mi N of Etna alog CA Rte 3 875 Comment
  POM30798  Lagophylla ramosissima Geo D. Butler 1910-6-2 1448 Siskiyou Yreka. Comment
  CAS-BOT-BC204986  Lathyrus jepsonii var. californicus Marian L. Campbell 1921-7-26 s.n. Siskiyou Near Castle Crags Comment
  CAS-BOT-BC204989  Lathyrus jepsonii var. californicus A. A. Heller 1928-6-9 14500 Siskiyou Along the Sacramento River near Shasta Retreat Comment
  SEINET5327268  Lathyrus jepsonii var. californicus R. McKee 1915-6-29 s.n. Siskiyou Dunsmuir Comment
  HSC61918  Lathyrus nevadensis var. nevadensis Ruby Van Deventer 1939-7-18 Siskiyou Poker Flat 1585 Comment
  JEPS104937  Lathyrus nevadensis var. nevadensis Dean W. Taylor 1996-6-18 15697 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1249 Comment
  CAS-BOT-BC321059  Layia glandulosa M. H. Mitchell 1936-5-8 9 Siskiyou 0.5 mile SSW of Hospital Rock, Modoc Lava Beds, National Manument 1242 Comment
  CAS-BOT-BC534903  Lemna turionifera Alice Eastwood 1912-7-17 1146 Siskiyou Sisson Comment
  UCR101153  Lepidium campestre L. C. Wheeler 1959-7-21 7588 Siskiyou Salmon & Marble Mtns. region, Crawford Creek, c. 0.5 mi. upstream from Guard Station Comment
  SEINET8368700  Leptodactylon californicum Frank Callahan, Frank Lang & John Erwin 2007-6-17 Siskiyou Cottonwood Peak. 1516 Comment
  SD53408  Lessingia nemaclada Darley F. Howe 1962-8-5 3395 Siskiyou 12 miles east of Happy Camp on #96 519 Comment
  RSA68894  Leucophysalis nana A. E. Culbertson 1943-7-1 63 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 airmiles of its headwaters to the west. Comment
  HSC753  Leucothoe davisiae William J. Ferlatte 1966-8-5 353 Siskiyou Caribou Mtn. 2470 Comment
  RSA659527  Leucothoe davisiae Gary D. Wallace 1990-7-1 2954 Siskiyou Trinity Mountains: SW of Shasta City, Cedar Basin Research Area. 1828 Comment
  CAS-BOT-BC229450  Lewisia cotyledon John Thomas Howell 1937-7-25 13474 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  RSA211266  Lewisia cotyledon var. heckneri William J. Ferlatte 1966-6-22 76 Siskiyou Josephine Lake basin; Trinity Alps. 1677 Comment
  CHSC30309  Lewisia leeana M. S. Taylor 1980-7-8 3093 Siskiyou S side of Little Castle Lake, in cliffs. 1767 Comment
  CAS-BOT-BC444080  Lewisia leeana Lester Rowntree 1931-7-26 s.n. Siskiyou Caribou Lakes Comment
  SBBG124419  Lewisia leeana C. B. Hardham 1961-7-1 8011 Siskiyou White Mtn, just below summit 1981 Comment
  HSC29445  Lewisia nevadensis Frederick W. Oettinger 1969-7-10 949 Siskiyou Marble Mtn. Wilderness Area, NW of English Lake 1829 Comment
  RSA464484  Lewisia rediviva Christopher Davidson 1975-6-5 2660 Siskiyou just above gate on special service rd branching SE off rd from Gazelle to Callahan 9.3 mi. W of Gazelle. 1471 Comment
  HSC77041  Lewisia triphylla K. T. Stillman 1976-6-25 24 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  UC1408940  Lewisia triphylla Frederick W. Oettinger 1969-7-10 947 Siskiyou n Upper English Lake; Salmon Mountains, High Lake Basins, Marble Mountain Wilderne 1950 Comment
  UC618650  Lewisia triphylla William Bridge Cooke 1938-9-8 11657 Siskiyou Squaw Creek Meadows Mount Shasta Comment
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Mar 31 2006
  HSC24052  Lewisia triphylla J. O. Sawyer 1971-7-2 2403 Siskiyou 1463 Comment
  RSA601895  Lewisia triphylla L. C. Wheeler 1935-7-23 3686 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Mud Springs, Middlehell Creek. 2011 Comment
  UCD65622  Leymus triticoides Geo. D. Butler 1908-7-3 472 Siskiyou Dry banks near Yreka. Comment
  CAS-BOT-BC436055  Ligusticum grayi John Thomas Howell 1937-7-25 13461 Siskiyou Salmon-Trinity Alps, Caribou Basin 2286 Comment
  HSC22269  Ligusticum grayi J. O. Sawyer 1969-8-4 1859 Siskiyou Slope SW of Sugar Lake 2195 Comment
  JEPS61988  Lilium columbianum Willis L. Jepson 1894-8-4 Siskiyou Mt. Shasta Comment
  RSA130325  Lilium kelleyanum Albert M. Vollmer 1949-7-5 11 Siskiyou 7 miles from Callahan on Callahan--Carrville road Comment
  CAS-BOT-BC130815  Lilium pardalinum W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow Comment
  HSC69228  Lilium pardalinum subsp. pardalinum Maralyn A. Renner 1980-8-31 2616 Siskiyou Twin Valley. 1494 Comment
  UC1483484  Lilium pardalinum subsp. vollmeri Maralyn A. Renner 1980-8-8 2433 Siskiyou Rattlesnake Meadow; Klamath National Forest, Preston Peak Quad. 1645 Comment
  RSA297886  Lilium pardalinum subsp. wigginsii W. L. Jepson 1937-7-30 18513 Siskiyou Fork of Dunn Creek, headwaters of the Illinois River, East Fork Comment
  CAS-BOT-BC132996  Lilium rubescens Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1962 Comment
  CAS-BOT-BC133024  Lilium washingtonianum subsp. purpurascens Marion Ownbey; Fred G. Meyer 1940-7-6 2196 Siskiyou Summit of Cayenne Ridge, Marble Mountain Comment
  HSC22272  Lilium washingtonianum subsp. purpurascens J. O. Sawyer 1969-8-5 1960 Siskiyou Slopes W of South Sugar Creek 1799 Comment
  UC163851  Linanthus harknessii Geo. D. Butler 1910-7-7 1657 Siskiyou Shackleford Creek 1219 Comment
  UC537991  Linanthus harknessii Louis C. Wheeler 1934-7-3 2868 Siskiyou Soda Creek Siskiyou Mts., Sterling Mt. 1676 Comment
  HSC3909  Linnaea borealis subsp. longiflora Dorothy Parker 1949-8-12 363 Siskiyou Along banks of Duck Lake Creek, Salmon Mtns. 1524 Comment
  HSC4865  Linnaea borealis subsp. longiflora J. O. Sawyer 1968-7-10 492 Siskiyou Lower slopes grading to terrace of a temporary stream. 1768 Comment
  JEPS12683  Linnaea borealis var. longiflora Ruby Van Deventer 1938-7-31 194 Siskiyou w side Poker Flat Woods; w side Poker Flat Woods 1219 Comment
  UC22857  Linnaea borealis var. longiflora C. B. Bradley 1879-1 Siskiyou near Mt. Shasta; near Mt. Shasta Comment
  HSC43835  Linum lewisii Maralyn O'Meara 1974-5-27 489 Siskiyou Along FS Rd. 47N03 1280 Comment
  UC229944  Lithocarpus densiflorus H. E. Brown Jun 11 1897-Jun 16 1897 Siskiyou n side Mt. Shasta 1524 Comment
  CAS-BOT-BC36575  Lithocarpus densiflorus var. echinoides Wm. Bridge Cooke 1941-9-16 16321 Siskiyou along trail to Castle Lake Road 1219 Comment
  JEPS87855  Lithocarpus densiflorus var. echinoides Vernon H. Oswald and Lowell Ahart 1994-7-11 6408 Siskiyou 1.9 mi sw dam at Lake Siskiyou (Forest Rd 26 (to Mt Shasta)); Lake Siskiyou 1036 Comment
  JEPS27162  Lithophragma campanulatum Lauramay T. Dempster 1961-7-1 1827 Siskiyou along ridge from Condry Peak to White Mountain; ridge from Condry Peak to White Mountain Comment
  HSC46176  Lithophragma glabrum Jennifer Whipple 1977-4-30 1876 Siskiyou Scott Valley near Weston Gulch 854 Comment
  JEPS47687  Lithophragma glabrum J. W. Kisling 1910-1 Siskiyou Edgewood Comment
  UC375363  Lithophragma glabrum Geo. D. Butler 1909-3-14 558 Siskiyou near Yreka; near Yreka Comment
  POM92054  Lithophragma glabrum Geo. D. Butler 1910-3-18 1132 Siskiyou Yreka. Comment
  HSC64863  Lithophragma parviflorum J. P. Smith 1976-5-5 8705 Siskiyou Road between Forks of Salmon and Somes Bar. 366 Comment
  RSA468258  Lithophragma parviflorum Christopher Davidson 1975-6-5 2668 Siskiyou 0.8 mi. from gate on special service rd. branching SE of rd from Gazelle to Callahan, ca. 9.3 miles W of Gazelle. Klamath Nat. Forest. 1509 Comment
  RSA30609  Lithospermum californicum Lincoln Constance, R. Rollins 1942-5-12 2899 Siskiyou Klamath River 12 miles S of Happy Camp. 305 Comment
  UC909516  Lomatium engelmannii Ira L. Wiggins 1950-5-28 12361 Siskiyou margins Carmen Lake (ca. 1.5 mi. e.of Scott Mt. rd.) 1737 Comment
  JEPS17111  Lomatium macrocarpum W. L. Jepson Jul 17 1902-Jul 22 1902 2103 Siskiyou The Devil's Backbone w. Siskiyou Co., The Devil's Backbone 1828 Comment
  RSA184690  Lomatium macrocarpum Gilbert Muth 1966-7-22 440 Siskiyou Marble Rim, Marble Mountains 2195 Comment
  UC337571  Lomatium macrocarpum unknown 1889-6-27 Siskiyou near Shasta Comment
  HSC96814  Lomatium macrocarpum S. Lyon, J. McIntire 2006-6-25 30 Siskiyou 200 ft. W of intersection of FS 39N14 and 39N04 1616 Comment
  POM82364  Lomatium macrocarpum Geo. D. Butler 1910-5-4 1275 Siskiyou Dry hill, Yreka. Comment
  RSA78838  Lomatium macrocarpum P. A. Munz 1952-7-2 17916 Siskiyou Road to Baldy Mountain about 6 miles by air west of Happy Camp, Siskiyou Mountains 1448 Comment
  UC1409714  Lomatium macrocarpum Melinda F. Denton 1973-6-27 2798 Siskiyou just s. of border of Klamath and Siskiyou Nat'l Forests Klamath Nat'l Forest (ca. 9 meters s. of intersection of 416C and 4007 on 416C) 1627 Comment
  HSC46209  Lomatium piperi Jennifer Whipple 1976-5-2 912 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  SEINET3106104  Lonicera conjugialis Steve Selva, Roger Jensen 1974-8-16 13 Siskiyou North shore of Sugar Lake. Comment
  UCR101765  Lonicera conjugialis L. C. Wheeler 1958-8-21 7416 Siskiyou Siskiyou Mountains, Lily Pad Lake, head W Fork Seiad Creek 1820 Comment
  RSA50164  Lonicera interrupta E. K. Balls 1949-7-10 13956 Siskiyou 5 miles from Sawyer's Bar on road to Cecilville. Comment
  JEPS25560  Lonicera tatarica Rimo Bacigalupi with George Bacigalupi Jr. 1959-6-30 7183 Siskiyou Mt. Shasta town (formerly Sisson) Comment
  UC52219  Lonicera tatarica W. T. Mooney 1828-5-21 Siskiyou Yreka Comment
  RSA53845  Lotus corniculatus Ynez Whilton Winblad 1941-6-30 s.n. Siskiyou Between Oregon line and Yreka. Comment
  RSA281671  Lotus unifoliolatus S. O. Mattoon 1979-7-10 68 Siskiyou California-Oregon line at Elliott Cr., N. of Rush, Oregon, Siskiyou Mts. Comment
  HSC60910  Luetkea pectinata Al Hobart Siskiyou Black Butte Comment
  RSA211187  Luetkea pectinata William J. Ferlatte 1966-8-17 389 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  CAS-BOT-BC140245  Luetkea pectinata W. R. Dudley 1901-8-23 s.n. Siskiyou Rocky Creek, Foxtail Ridge, Salmon Mts. Comment
  OBI55451  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
  HSC608  Lupinus albicaulis William J. Ferlatte 1967-7-26 760 Siskiyou NW side of Caribou Mtn., Browns Meadow. 1829 Comment
  UCD105875  Lupinus albicaulis W. A. Williams 1957-7-23 57 S Siskiyou Siskiyou-Trinity County line. Deadfall Creek Shasta National Forest (e. of Mt. Eddy). 2011 Comment
  CHSC71299  Lupinus albicaulis var. shastensis Vernon H. Oswald 1998-6-11 9184 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
  UC1481282  Lupinus albicaulis var. shastensis D. B. Dunn 1971-8-15 18141 Siskiyou on Hwy 89, 1/2 mi e McCloud Ranger Station; e of McCloud Ranger Station Comment
  UC157023  Lupinus albicaulis var. shastensis Geo. D. Butler 1910-6-6 1465 Siskiyou Quartz Valley Comment
  SEINET10484530  Lupinus albicaulis var. shastensis Emmel 1974-7-20 EMMEL 519 Siskiyou Slope 0.6 air miles ese of dry lake lookout, along road between dry lake Lookout and deer camp, siskiyou mountains. T47n,r9w,sec.19 se 1/4. Montane Conifer forest. In open areas of recently logged forest. Perennial. 2.5 Ft High. 2.5 Ft wide. Abundant. Plebejus icarioides ssp & lycaeides argyrognomon Ricei adults closely associated with this plant (lepidoptera; lycaenidae) 1890 Comment
  SEINET8040841  Lupinus albicaulis var. shastensis G. D. Butler 1910-6-6 1465 Siskiyou Quartz Valley Comment
  CAS-BOT-BC195970  Lupinus albifrons var. albifrons Charles Piper Smith 1947-5-13 47270 Siskiyou 9.2 miles east of Weed. Highway 97 Comment
  SD116273  Lupinus albifrons var. collinus D. B. Dunn, B. J. Cox 1971-6-9 17937 Siskiyou 9.0 miles north of Weed, on U. S. Highway 97, at Whitney Creek. 1250 Comment
  UC1481331  Lupinus albifrons var. collinus D. B. Dunn and B. J. Cox 1971-6-9 17937 Siskiyou on U.S. Hwy 97, 9 mi n Weed (at Whitney Creek); Whitney Creek 1249 Comment
  CAS-BOT-BC196325  Lupinus albifrons var. flumineus Charles Piper Smith 1947-7-16 47681 Siskiyou Highway 99 - Klamath River Bridge, 0.8 miles east Comment
  SEINET10871207  Lupinus albifrons var. flumineus Katherine L. Morris 1973-6-2 Morris 336 Siskiyou Decomposed volcanic soil on hornbrook to montague raod, about 1 mile se of Hornbrook Comment
  CHSC69078  Lupinus angustiflorus Vernon Oswald; Lowell Ahart 1997-7-28 8796 Siskiyou Bullseye Lake southeast of Medicine Lake. 2057 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-BC196351  Lupinus argenteus var. argenteus A. A. Heller 1940-7-23 15759 Siskiyou 2 miles south of Grass Lake, on U. S. Highway #97 Comment
  CAS-BOT-BC196352  Lupinus argenteus var. argenteus J. M. Tucker 1950-7-24 1960 Siskiyou Outskirts of Dorris Comment
  JEPS91388  Lupinus argenteus var. heteranthus Dean W. Taylor 1987-6-6 9012 Siskiyou Egg Lake; Upper Modoc Plateau 1298 Comment
  RSA582456  Lupinus aridus Louis C. Wheeler 1935-6-13 3582 Siskiyou N side Scott River, Scott Bar Mts. 823 Comment
  HSC92403  Lupinus croceus Jennifer Whipple 1976-6-30 1206 Siskiyou SE slope of Mount Eddy draining into the N fork of the Sacramento River 2256 Comment
  SEINET3166566  Lupinus croceus var. croceus R. W. Spellenberg 2006-6-19 13747 Siskiyou 35 air km WSW of Weed on Calif. Hwy. 3, 8.5 km Sof jct with Callahan-Gazelle Rds., 1.6 km N of Scott Mtn. Summit 1525 Comment
  CAS-BOT-BC202055  Lupinus lapidicola Philip A. Munz 1952-7-2 17877 Siskiyou Road to Baldy Mt. n.w. of Happy Camp, Siskiyou Mts. 1493 Comment
  RSA237932  Lupinus latifolius subsp. viridifolius Frederick W. Oettinger 1969-7-31 1120 Siskiyou The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, trail between English Lake and drift fence. 1829 Comment
  HSC59016  Lupinus lepidus Marvin Butler 1971-7-20 178 Siskiyou Near El Capitan Lake, close to Cave Junction 1464 Comment
  JEPS105171  Lupinus lepidus var. lobbii Dean W. Taylor 1993-7-30 14021 Siskiyou Highway 3 about 7 miles east of Fort Jones (tributary to Scott River); Klamath National Forest 609 Comment
  JEPS65069  Lupinus lepidus var. lobbii Willis L. Jepson 1894-8-11 9 t Siskiyou near Sisson; Mt. Shasta, Muir Peak (now Sugar Loaf), next Black Butte Comment
  UC157028  Lupinus lepidus var. lobbii Geo. D. Butler 1910-9-11 1867 Siskiyou Weed Comment
  UCSB15827  Lupinus lepidus var. sellulus 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  POM26762  Lupinus leucophyllus Geo. D. Butler 1909-5-14 703 Siskiyou Klamath River. Comment
  RSA749105  Lupinus leucophyllus R. Riggins 1993-6-17 1687 Siskiyou Loose gravelly loam along CA 263, ca. 1 mi N jct. CA 96, 0.5 mi. S jct. I5 Comment
  SEINET10491193  Lupinus leucophyllus var. leucophyllus Katherine L. Morris 1973-6-2 Morris 373 Siskiyou Collected 7 mi. S of etna along roadside of hwy 3, near a gravel quarry. Comment
  SEINET10488767  Lupinus luteolus Patricia L. Kenney 1973-6-1 Kenney 380 Siskiyou Collected along roadside of i-5, 1.3 mi s of california state line. Comment
  SEINET7040262 Image available Lupinus microcarpus var. microcarpus A. G. Vestal 1963-6-1 s.n. Siskiyou Ca 1 mile southeast of Hornbrook. Hornbrook Quadrangle. UTM Zone 10, 538602mE, 4638284mN. Comment
  POM10714  Lupinus obtusilobus C. F. Baker 1903-8-15 3918 Siskiyou Mt. Shasta Comment
  JEPS65424  Lupinus polyphyllus Willis L. Jepson 1894-7 47 t Siskiyou Sisson; Mt. Shasta, Sisson Comment
  RSA123788  Lupinus polyphyllus subsp. polyphyllus Douglas Barbe 1955-7-5 103 Siskiyou 2.5 miles north of Etna on Greeview Rd. 884 Comment
  UC157013  Lupinus polyphyllus var. polyphyllus Geo. D. Butler 1908-6-28 376 Siskiyou Oro Fino, L. Eastlick's Meadow Oro Fino Comment
  SEINET10490891  Lupinus sellulus var. sellulus Smith 1929-7-17 Smith 4425 Siskiyou 1/2 mi n of igerna. Comment
  SEINET10490259  Lupinus subvexus var. transmontanus David B. Dunn, Patricia L. Kenney; Douglas G. LeDoux 1973-6-1 Dunn 20637 Siskiyou About 1 mi s of hornbrook. Along old hwy, four spp of lupines growing in Proximity. Area under cultivation and pasture. Waste areas by road and along Road cuts. Comment
  SEINET10491001  Lupinus vallicola subsp. vallicola Katherine L. Morris Morris s.n. Siskiyou Found along roadside .7 mi s of jct at etna rd on hwy 3. Comment
  HSC2406  Luzula comosa William J. Ferlatte 1966-8-18 407 Siskiyou 3 mi. S of Big Flat 1585 Comment
  CAS-BOT-BC436704  Luzula comosa var. laxa Louis C. Wheeler 1934-6-12 2691 Siskiyou Klamath Forest, North Hungry Creek 1463 Comment
  CHSC99979  Luzula divaricata L. P. Janeway 2008-7-26 9509 Siskiyou Klamath Ranges. Between Castle Crags, Trinity Mountains, and The Eddys; about 200 m west-southeast of Heart Lake and about 0.8 km south of Castle Lake. 1922 Comment
  UCD77848  Luzula divaricata Robert E. Preston 2001-6-23 1593 b Siskiyou Klamath National Forest, e ridge of Rainbow Mtn, 2072 Comment
  CAS-BOT-BC441292  Luzula macrantha L. E. Smith 1914-5-12 689 Siskiyou Sisson Comment
  UC618822  Luzula subcongesta W. Bridge Cooke 1938-8-18 11476 Siskiyou Mount Shasta, Horse Camp Springs, along the summit trail Horse Camp Springs; Mount Shasta, Horse Camp Springs 2514 Comment
  SEINET3155226  Lythrum adsurgens G. D. Butler 1910-8-3 1811 Siskiyou Yreka Creek Comment
  RSA0015089  Lythrum californicum Louis C. Wheeler 1934-10-11 3316 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mountains. 671 Comment
  CAS-BOT-BC343992  Madia elegans L. R. Abrams 1927-9-11 12147 Siskiyou Pacific Highway between Hilt and Hornbrook Comment
  UC830861  Madia glomerata Louis C. Wheeler 1934-8-24 3216 Siskiyou Trapper Creek Siskiyou Mts., Mt. Diablo Mer. 1859 Comment
  CAS-BOT-BC343422  Madia gracilis Elmer I. Applegate 1923-9-7 3954 Siskiyou Doggett Ridge, south slope of the Siskiyou Mountains Comment
  HSC43829  Madia gracilis Maralyn O'Meara 1974-5-27 480 Siskiyou Along FS Rd. 47N03 1280 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
  RSA211521  Madia gracilis subsp. gracilis William J. Ferlatte 1966-8-3 248 Siskiyou Trinity Alps: Big Flat, wooded area near public camp 1524 Comment
  UC61685  Madia sativa Geo. B. Grant September, 1902 5055 Siskiyou Mount Shasta Comment
  RSA15597  Mahonia aquifolium C. B. Wolf 1927-8-27 1110 Siskiyou Happy Camp, Klamath River. Comment
  POM97669  Mahonia repens Geo. D. Butler 1910-8-1 1807 Siskiyou Yreka Creek. Comment
  RSA238989  Maianthemum racemosum Frederick W. Oettinger 1966-6-27 29 Siskiyou 400 yeards up road from Crawford Creek Guard Station, Salmon River District, Klamath National Forest, Cecilville Comment
  HSC68441  Maianthemum racemosum subsp. amplexicaule Maralyn A. Renner 1980-7-4 1388 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC27662  Maianthemum racemosum subsp. amplexicaule Carl W. Mize 1972-6-22 92 Siskiyou Cut bank 1/2 way up Offield Mtn. 1006 Comment
  RSA377693  Maianthemum racemosum subsp. amplexicaule J. P. Smith 1973-5-5 6465 Siskiyou Along Cook and Green Pass road. Comment
  HSC18916  Maianthemum stellatum J. O. Sawyer 1968-6-18 205 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  RSA605351  Maianthemum stellatum Louis C. Wheeler 1959-7-25 7605 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  CAS-BOT-BC67849  Marsilea vestita Louis C. Wheeler 1934-10-14 3323 Siskiyou Siskiyou Mountains - Shasta River 2 mi. below Yreka Creek - Mt. Diablo Mer. 670 Comment
  UC618763  Medicago lupulina W. B. Cooke 1938-7-15 11185 Siskiyou Bear Springs Mount Shasta 1524 Comment
  HSC76712  Melica bulbosa K. T. Stillman 1976-7-30 344 Siskiyou Marble Mtn. Wilderness Area, Upper Marble Valley. 1829 Comment
  UC333647  Melica bulbosa unknown 1889-6-28 Siskiyou Edgewood Comment
  UC165450  Melica fugax Geo. D. Butler 1910-4-30 1251 Siskiyou Yreka Comment
  HSC49216  Melica harfordii J. O. Sawyer, K. T. Stillman Jul 1977 2796 Siskiyou Mid slopes and ridges E of the Little N Fork Trail. 732 Comment
  RSA239101  Melica harfordii Frederick W. Oettinger 1969-8-3 1143 Siskiyou Above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC39870  Melica stricta J. O. Sawyer 1969-7-9 1264 Siskiyou N slope of Grizzly Peak. 2378 Comment
  CHSC91344  Melilotus indicus Lowell Ahart; John Dittes 2005-6-9 12011 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
  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
  JEPS63468  Mentha canadensis Geo. D. Butler 1908-8-12 170 Siskiyou L. Eastlick's ranch Yreka (Yreka) Comment
  SEINET8880644 Image available Mertensia ciliata Unknown 1991-5-30 Siskiyou Klamath National Forest; West branch, a Forest Service campground; 2200 feet. Comment
  CAS-BOT-BC428557  Micranthes aprica Gilbert Muth 1966-7-31 475 Siskiyou North side of Black Mountain, Marble Mts. 2057 Comment
  CHSC30657  Micranthes bryophora M. S. Taylor 1980-7-8 3095 Siskiyou S end of Little Castle Lake. 1767 Comment
  CAS-BOT-BC429000  Micranthes fragosa Wm. Bridge Cooke 1941-8-28 16255 Siskiyou In a small spring tributary of Squaw Valley Creek near the rush swale Mt. Shasta Comment
  UCD102913  Micranthes oregana J. M. Tucker 1974-7-26 4292 Siskiyou Let 'Er Buck Meadows, 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  JEPS13223  Microseris laciniata subsp. laciniata W. L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson (present Mt. Shasta town) Comment
  CAS-BOT-BC349371  Microseris nutans L. E. Smith 1913-5-12 204 Siskiyou Dunsmuir Comment
  CAS-BOT-BC349372  Microseris nutans L. E. Smith 1914-5-5 654 Siskiyou Dunsmuir Comment
  HSC58930  Microsteris gracilis Marvin Butler 1971-8-9 82 Siskiyou Near El Capitan, close to the town of Cave Junction 1464 Comment
  HSC60801  Microsteris gracilis Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  HSC61928  Microsteris gracilis Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  POM208258  Microsteris gracilis subsp. humilis L. C. Wheeler 1934-6-1 2602 Siskiyou Siskiyou Mountains; Mt. Diablo Mer. Head Jaynes Canyon. 1829 Comment
  CDA41682  Mimulus alsinoides D. Osterhandt & D. H. Shaw 1978-3-31 s.n. Siskiyou Between Forks of Salmon and Somes Bar. 0 Comment
  RSA119355  Mimulus breweri S. S. Tillett 1956-7-9 638 Siskiyou E. of Scott Mtn., s. end of small lake. Siskiyou -Trinity Co. Line. 8 mi. se. of Callahan 1829 Comment
  UC1409383  Mimulus breweri Frederick W. Oettinger 1969-8-13 1360 Siskiyou vicinity English Peak (English Lake, main camp site); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  UCD122461  Mimulus breweri John M. Tucker 1974-7-28 4315 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  UC61069  Mimulus guttatus W. A. Setchell, C. C. Dobie 1902-7-17 Siskiyou Sisson Mount Shasta Comment
  UC618713  Mimulus guttatus W. Bridge Cooke 1938-8-5 11444 Siskiyou MacBride Springs Mount Shasta Comment
  RSA237287  Mimulus guttatus Frederick W. Oettinger 1967-6-28 142 Siskiyou On Salmon River near Kelly Gulch. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 613 Comment
  UC1736262  Mimulus jepsonii Dean W. Taylor 1987-6-7 9020 Siskiyou South end Saddle Hills 1645 Comment
  HSC27111  Mimulus layneae Carl W. Mize 1972-6-21 62 Siskiyou 0.25 mi. above road on WSW slope 305 Comment
  UC1190172  Mimulus moniliformis Ira L. Wiggins 1955-7-22 13451 Siskiyou 9.5 mi above Cecilville; South Fork of Salmon River 1066 Comment
  HSC36558  Mimulus moschatus J. O. Sawyer 1969-7-12 1351 Siskiyou Edge of Sugar Lake 1799 Comment
  HSC44943  Mimulus nanus var. nanus J. O. Sawyer 1978-6-18 3237 Siskiyou Marble Mtn. Wilderness, along trail N of Shelly Meadows 1921 Comment
  RSA120316  Mimulus primuloides S. S. Tillett 1956-7-9 676 Siskiyou N side Scott Mtn divide, headwaters of Mule Creek, Siskiyou Trinity line, 8 miles SE of Callahan. 1616 Comment
  HSC91002  Mimulus primuloides var. linearifolius Jennifer Whipple 1976-7-8 1338 Siskiyou N slope of Mt. Eddy 2439 Comment
  JEPS4670  Mimulus pulsiferae Milo S. Baker 1893-6 Siskiyou 6 mi below (w of) Bartles; McCloud River Comment
  HSC46180  Minuartia douglasii Jennifer Whipple 1977-4-30 1891 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  CAS-BOT-BC388884  Minuartia douglasii Louis C. Wheeler 1934-6-4 2640 Siskiyou Klamath National Forest. Nigger Gulch 1066 Comment
  CAS-BOT-BC174733  Minuartia nuttallii A. A. Heller 1916-7-22 12492 Siskiyou East side of Mt. Eddy Comment
  CAS-BOT-BC481920  Minuartia nuttallii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1889 Comment
  UC1483471  Minuartia nuttallii subsp. gregaria Maralyn A. Renner 1980-8-7 2427 Siskiyou ridge s Preston Peak; Klamath National Forest, Preston Peak Quad. 1950 Comment
  UC1540135  Minuartia nuttallii subsp. gregaria Dean Wm. Taylor and Rexford E. Palmer 1987-8-8 9261 Siskiyou Lyons Peak Medicine Lake volcanic highland region (extreme ne portion of co.) 2407 Comment
  UC166130  Minuartia nuttallii subsp. gregaria Geo. D. Butler 1910-7-4 1638 Siskiyou Goosenest foothills 1219 Comment
  CHSC99584  Minuartia nuttallii var. gregaria L. P. Janeway 2008-7-22 9446 Siskiyou Klamath Ranges. Between the Trinity Mountains, Castle Crags, and The Eddys; narrow ridge between Hart Lake and Little Castle Lake. Steep northwest-facing rock outcrop and scree slope. 1871 Comment
  NY8430  Minuartia stolonifera T. W. Nelson 1985-6-19 7839 Siskiyou T40N R8W, Sec. 24. Along S side of State Route 3, 3.1 mi N of Scott Moutnain Pass. Rocky openings in Jeffery Pine woodland on serpentine. 4000 ft. Comment
  RSA237687  Mitella trifida Frederick W. Oettinger 1969-8-22 1484 Siskiyou Head of Pierce s Draw. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  SEINET12219614  Mitella trifida H. P. Chandler 1901-1 1555 a Siskiyou near Marble Mountain 1829 Comment
  SEINET6645733  Mollugo verticillata L. C. Wheeler 1935-7-20 3676 Siskiyou Scott River, 1 1/2 mi. W. of Ft. Jones 823 Comment
  HSC75349  Monardella glauca J. O. Sawyer, M. Mesler 1980-8-10 4031 Siskiyou S of Carmen Lake, ultramafics of Scott Mtn. 1829 Comment
  UC61653  Monardella odoratissima subsp. glauca Geo. B. Grant September 1902 5131 Siskiyou Horse Camp Mount Shasta 2438 Comment
  CAS-BOT-BC210240  Monardella odoratissima subsp. pallida Dana York 2011-8-12 3041 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  CHSC67840  Monardella odoratissima subsp. pallida James D. Jokerst 1992-7-30 3412 Siskiyou Top of divide between Trinity River, N of road [no additional location data; W of interstate 5? V. Oswald]. Comment
  HSC2412  Monardella odoratissima subsp. pallida William J. Ferlatte 1966-8-5 339 Siskiyou Caribou Mtn. 2470 Comment
  HSC67815  Monardella odoratissima subsp. pallida J. O. Sawyer, J. Cole 1980-7-20 3788 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  JEPS63382  Monardella odoratissima subsp. pallida W. L. Jepson 1940-6-27 20049 Siskiyou e slope Mt. Shasta 1676 Comment
  UC54604  Monardella odoratissima subsp. pallida H. M. Hall and E. B. Babcock June, 1903 4127 Siskiyou Dead Horse Canyon Sierra Nevada Mountains 1524 Comment
  JEPS63385  Monardella odoratissima subsp. pallida Ruby Van Deventer 1938-7-31 182 Siskiyou near Poker Flat (where trail starts to Twin Valley) 1371 Comment
  RSA401676B  Monardella odoratissima subsp. pallida M. B. Dunkle 1944-7-18 s.n. Siskiyou Siskiyou National Forest Comment
  CAS-BOT-BC220226  Monardella sheltonii Louis C. Wheeler 1934-6-9 2664 Siskiyou Klamath River, between Dutch Creek and Deadman Gulch, Siskiyou Mts. 670 Comment
  CAS-BOT-BC220229  Monardella sheltonii H. A. Thomas; J. H. Thomas 1954-7-22 4442 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Rush and Big Bend Creeks, 0.25 - 0.5 miles N of S Fork of Salmon River 975 Comment
  RSA0022784  Monardella villosa subsp. subserrata Carl B. Wolf 1927-8-27 1129 Siskiyou On the Klamath River. 7 miles below Happy Camp. Comment
  UC456091  Monardella villosa subsp. villosa I. J. Condit 1911-7-13 Siskiyou Along R. R. Dunsmuir Comment
  JEPS14831  Monotropa hypopitys Ranger Morgan Aug. 1913 Siskiyou Happy Camp Klamath Forest Comment
  HSC48340  Montia chamissoi Maralyn O'Meara 1974-5-25 414 Siskiyou On Rd. 8, ~4.7 mi. W of junction with Hwy. 3 1159 Comment
  CDA23975  Montia dichotoma Vernon H. Oswald & Lowell Ahart 1998-6-11 9220 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Road and Highway 97, ca. 5 miles north of Macdoel. Comment
  UC164028  Montia linearis Geo. D. Butler 1910-4-25 1240 Siskiyou Oro Fino Comment
  CAS-BOT-BC445213  Montia parvifolia Dorothy Parker 1948-7-8 87 Siskiyou Etna Creek, Salmon Mountain 914 Comment
  RSA789821  Montia parvifolia Rebecca Wenk 2005-7-16 258 Siskiyou Trinity Alps, South Fork of the Salmon River. South end of Big Flat Meadow. 1494 Comment
  SEINET10599825  Muhlenbergia filiformis A. Arthur Heller 1914-8-25 Heller 11704 Siskiyou Plentiful in moist sandy soil near Deetz station 6 miles north of Sisson, completely covering the ground in places on the edges of thickets and burnt-over land. 1158 Comment
  RSA239110  Muhlenbergia montana Frederick W. Oettinger 1968-9-7 753 Siskiyou Near north end of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  SBBG59909  Myriophyllum sibiricum L. Ahart, J. Dittes 2010-7-30 16941 Siskiyou W edge of Shasta River, ca. 30 yards NW of E Louie Rd Bridge, Shasta Big Springs Ranch, 1.6 mi (air) SW of Big Springs Lake, 4.6 mi (air) NW of Dwinnel Dam, 5.7 mi (air) SE of Grenada 716 Comment
  JEPS45937  Nama densa Rimo Bacigalupi and L. R. Heckard 1966-6-15 9181 Siskiyou n side Mt. Shasta (in sandy terrain just e of Bolam siding on n side of Southern Pacific right-of-way); n side Mt. Shasta, e of Bolam siding 1219 Comment
  RSA74810  Nama lobbii F. W. Peirson 1923-7-19 3821 Siskiyou Whitney Creek at the foot of Mt. Shasta. Comment
  CHSC2300  Narthecium californicum V. Holt 1932-7-10 Siskiyou Mt. Eddy. 2133 Comment
  RSA145168  Narthecium californicum Dorothy Parker 1959-7-20 735 Siskiyou Below Rock Fence Lake 1829 Comment
  UC164018  Navarretia intertexta Geo. D. Butler 1908-8-27 157 Siskiyou near Oro Fino Comment
  POM65859  Navarretia intertexta Copeland 1903-7-2 3553 Siskiyou Klamathon. 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
  CAS-BOT-BC219529  Nemophila parviflora Clarence R. Quick 1959-6-19 59 -15 Siskiyou 6,7 [6.7?] miles south of Four Corners on ridge south-east of Seiad Valley Comment
  CAS-BOT-BC123919  Nitrophila occidentalis Amos Arthur Heller 1905-6-20 8073 Siskiyou Gazelle Comment
  CAS-BOT-BC60585  Noccaea fendleri subsp. glauca Jean Langenheim 1957-5-19 4344 Siskiyou At intersection of Miner's Creek road and Tiger Creek road. Comment
  CAS-BOT-BC60592  Noccaea fendleri subsp. glauca Harley P. Chandler 1901-6-1 1689 Siskiyou North Coast Ranges. Marble Mountain. 2438 Comment
  HSC43328  Noccaea fendleri subsp. glauca Maralyn O'Meara 1974-5-26 469 Siskiyou Chandler Glade 1768 Comment
  HSC81568  Noccaea fendleri subsp. glauca Thomas W. Nelson, Jane P. Nelson 1980-7-17 6075 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  CAS-BOT-BC349922  Nothocalais troximoides Roxana S. Ferris; Laura Lorraine 1948-6-12 11847 Siskiyou Gazelle Mountain grade, road between Callahan and Gazelle 1499 Comment
  CHSC1871  Nothochelone nemorosa V. Holt 1943-8-13 Siskiyou Marble mountains. 1828 Comment
  HSC4841  Nothochelone nemorosa J. O. Sawyer 1968-9-28 743 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  HSC4842  Nothochelone nemorosa J. O. Sawyer 1968-9-13 713 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC69388  Nothochelone nemorosa Maralyn A. Renner 1980-8-31 2663 Siskiyou Poker Flat at trailhead to Twin Valley 1524 Comment
  UC637030  Nothochelone nemorosa Edward Lee 1934-8-13 1089 Siskiyou Happy Camp to Waldo (Oregon) Road, Klamath National Forest, watershed of West Branch of Indian Creek West Branch of Indian Creek; Klamath National Forest 1463 Comment
  UCR37823  Nothochelone nemorosa K. T. Stillman 1976-8-8 396 Siskiyou Marble Mountain Wilderness Area Comment
  RSA184654  Nothochelone nemorosa Clare B. Hardham 1965-8-20 1305 Siskiyou Marble Mountains. Cudahy Lakes. Comment
  RSA238797  Nothochelone nemorosa Frederick W. Oettinger 1967-7-30 211 Siskiyou Semi-shaded granite cliffs southwest of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  UC166143  Nuphar lutea subsp. polysepala Geo. D. Butler 1910-7-8 1667 Siskiyou Log Lake, Shackleford Creek Shackleford Creek; Log Lake, Shackleford Creek Comment
  CHSC4525  Oenothera elata subsp. hirsutissima J. E. Bowlin 1967-7-18 57 Siskiyou Off roadside, ca. 13.9 mi w of Mount Shasta Ski Bowl. 1158 Comment
  SEINET3150351  Oenothera hookeri G. D. Butler 1910-7-30 1799 Siskiyou Yneka Creek Comment
  UC1167562  Olsynium douglasii var. douglasii Gene B. Newcomb and H. G. Baker Mar 28 1959-Mar 29 1959 233 Siskiyou on US Hwy 99 4.5 mi n Yreka city limits 914 Comment
  CDA7548  Onopordum acanthium J. R. Grisham 1963-6-25 Siskiyou In town of Dorris. 0 Comment
  JEPS85595  Orcuttia tenuis W. Robert Powell 1989-7-19 3534 Siskiyou 1.2 mi e Spring Creek Road (16 air mi n of Fall Spring Mills, 6 air mi w of Day); Timbered Crater 7.5 minute Quadrangle 1097 Comment
  HSC96878  Oreostemma alpigenum Gordon Leppig 1997-8-23 673 Siskiyou Russian Wilderness, Little Duck Lake Fen 2200 Comment
  UC595071  Oreostemma alpigenum var. andersonii David D. Keck 1938-8-8 4868 Siskiyou between Craggy Peak and Scott Mountain divide, at Trinity Co. line Craggy Peak; Trinity Co. line, Scott Mountain 1675 Comment
  JEPS51820  Orobanche uniflora subsp. occidentalis Theodore Niehaus 1966-6-20 719 Siskiyou Open slopes just below Little Castle Lake along trail from Castle Lake. Comment
  HSC61865  Orogenia fusiformis Ruby Van Deventer Siskiyou Poker Flat 1585 Comment
  HSC62314  Orthilia secunda Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  JEPS83863  Orthilia secunda Wayne Roderick Jul 1976 Siskiyou Siskiyou Mts. Vicinity of Cook and Green Pass 1463 Comment
  CAS-BOT-BC458086  Orthilia secunda Doris K. Kildale 1929-8-24 8831 Siskiyou Preston Peak 2225 Comment
  CAS-BOT-BC458089  Orthilia secunda A. A. Heller 1914-8-28 11743 Siskiyou Mt. Eddy, east side 1828 Comment
  UCSB26648  Orthilia secunda Keefe, Joseph 1967-7-11 Siskiyou Cook and Green Pass, north of Seida Valley 1341 Comment
  CAS-BOT-BC105080  Orthocarpus cuspidatus R. C. Wenk 2008-7-24 937 Siskiyou Kangaroo Lake, S of the Gazelle-Callahan Rd. Top of ridge S of the lake 1981 Comment
  JEPS4546  Orthocarpus cuspidatus subsp. copelandii John Thomas Howell 1939-8-4 15034 Siskiyou between Elk Mt. and Marble Rim (Marble Mts.); , btw Elk Mt. and Marble Rim Comment
  CHSC78485  Orthocarpus cuspidatus subsp. cuspidatus Joe Molter 2000-6-6 Siskiyou Northwest of Butte Valley Wildlife Area and 500-600 ft east of dirt road that heads north to McGavin Peak. 1402 Comment
  UC164259  Orthocarpus cuspidatus subsp. cuspidatus Geo. D. Butler 1909-6-22 930 Siskiyou foothills Goosenest Mountain; foothills of Goosenest Mountain Comment
  UCD123228  Orthocarpus cuspidatus subsp. cuspidatus K. M. Meyer; A. Townesmith 2007-8-2 187 Siskiyou Klamath National Forest. 13.3 m on Forest Service Rd. 70, off US Hwy 97 toward Oregon. 1956 Comment
  UCD123245  Orthocarpus tenuifolius A. H. Murphy 1956-8-14 56 G Siskiyou Klamath National Forest, pass on trail west of Marshy Lake. 2133 Comment
  UC61183  Osmorhiza berteroi W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Mount Shasta Comment
  RSA105408  Osmorhiza berteroi G. D. Barbe 1955-6-30 58 Siskiyou 0.7 mile northwest of Forest Camp, Etna 945 Comment
  SDSU9528  Ozomelis trifida D. F. Howe 1972-7-5 4875 Siskiyou 0.6 mile south of Oregon State line on road to Happy Camp. 1707 Comment
  CAS-BOT-BC316749  Packera cana Elmer Ivan Applegate 1923-8-18 3868 Siskiyou Top of Redshale Mt., east of Medicine Lake, Siskiyou Co. 2438 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
  UC585147  Packera cana E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1957 Siskiyou about 2 mi s Sheep Rock (on highway from Bray to Weed); n slope Mt. Shasta 1249 Comment
  UC618862  Packera streptanthifolia W. Bridge Cooke 1938-7-28 11369 Siskiyou north ridges Mount Shasta; , on exposed ridge tops, north ridges 2895 Comment
  CAS-BOT-BC317127  Packera streptanthifolia var. streptanthifolia A. A. Heller 1922-6-22 13670 Siskiyou Shasta Valley between Gazelle and Edgewood. Comment
  CAS-BOT-BC317128  Packera streptanthifolia var. streptanthifolia Alice Eastwood; John Thomas Howell 1934-4-20 1782 Siskiyou near Gazelle Comment
  RSA585249  Panicum capillare L. C. Wheeler 1934-9-20 3288 Siskiyou Lumgrey Creek; Siskiyou Mountains 671 Comment
  UC203921  Panicum capillare Geo. D. Butler 1904-9-26 871 Siskiyou along creek near Yreka; near Yreka Comment
  HSC101758  Panicum dichotomiflorum subsp. dichotomiflorum J. P. Smith, J. O. Sawyer 2011-9-4 13413 Siskiyou Along Ball Mountain-Little Shasta-Mt. Hebron Road. 877 Comment
  CDA3569  Papaver rhoeas T. C. Fuller 1962-6-13 8971 Siskiyou Highway 99 to Yreka, north limits of Gazelle. 0 Comment
  UC858265  Parnassia californica Alice Eastwood 1912-8-30 2045 Siskiyou Mount Eddy Comment
  CAS-BOT-BC175510  Parnassia fimbriata Maxine Wilkes 1940-8-1 s.n. Siskiyou Deep Lake, Marble Mts. Comment
  RSA202366  Parnassia fimbriata J. M. Tucker, L. K. Mann, S. L. Holloway 1963-8-18 3745 Siskiyou Upper Canyon Creek ca. 1/2 mile NE of the Marble Valley Guard Station, Marble Mountain Wilderness Area. 1921 Comment
  JEPS46471  Pastinaca sativa Rimo Bacigalupi 1959-7-1 7210 Siskiyou along irrigation ditch in front of Mt. Shasta Union High School (outskirts of town); Mt. Shasta (town) 1097 Comment
  CAS-BOT-BC202850  Paxistima myrsinites L. B. Kildale 1930-6-1 9867 Siskiyou Salmon River at Forks of Salmon Comment
  JEPS9620  Paxistima myrsinites Geo. D. Butler 1908-8-5 20 Siskiyou Woolly Creek Comment
  UCR5254  Paxistima myrsinites O. F. Clarke 1966-8-6 660806- 02 Siskiyou 46 mi south of Oregan Border on US 99 Comment
  RSA610187  Pectocarya pusilla L. C. Wheeler 1935-5-1 3453 Siskiyou Yreka Creek, Siskiyou Mts. 854 Comment
  CAS-BOT-BC266634  Pedicularis A. A. Heller 1914-8-28 11726 Siskiyou E side of Mount Eddy 1584 Comment
  HSC639  Pedicularis densiflora William J. Ferlatte 1967-6-30 596 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  UC672571  Pedicularis densiflora Dorothy Tebbe 1930-3-28 61 Siskiyou near Weed Comment
  JEPS23802  Pedicularis howellii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7270 Siskiyou Poker Flat 1536 Comment
  JEPS82130  Pedicularis howellii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7270 Siskiyou Poker Flat 1536 Comment
  HSC91146  Pedicularis racemosa Jennifer Whipple 1976-7-23 1528 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  JEPS84183  Pedicularis racemosa L. R. Heckard with J. Hickman et al. 1986-7-17 6535 Siskiyou se of Condry Mountain (road end area and camp overlooking s end of Alex Hole); Alex Hole 1980 Comment
  UCD123294  Pedicularis racemosa J. M. Tucker; D. V. Hemphill 1974-7-26 4289 Siskiyou Let 'Er Buck Meadows, ca. 0.5 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  RSA758223  Pedicularis racemosa Robert F. Thorne 1969-8-2 63323 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  UCR208089  Pellaea brachyptera L. C. Wheeler 1934-6-21 2744 Siskiyou Siskiyou Mtns, West Fork Cottonwood Creek 1238 Comment
  JEPS81805  Penstemon Todd Keeler-Wolf 1982-8-15 682 Siskiyou .5 km sw Terrace Lake; sw of Terrace Lake 2042 Comment
  UC164354  Penstemon anguineus Geo. D. Butler 1910-7-12 1761 Siskiyou Shackleford Creek 1219 Comment
  UCD124033  Penstemon anguineus Roman Gankin; Brewer, Hildreth, Milam 1965-8-10 604 Siskiyou summit of Indian Creek Road, 3.5 miles south of California-Oregon State line. Comment
  HSC77075  Penstemon azureus K. T. Stillman 1976-7-7 153 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  NY571173  Penstemon azureus var. azureus C. L. Hitchcock 1939-7-6 5230 Siskiyou Peak above and north of Divide of Siskiyou Mountains, on Takilma-Happy Camp road. 1828.8 Comment
  CHSC110960  Penstemon davidsonii B. Castro; L. P. Janeway 2007-7-28 1663 Siskiyou High Cascade Range. SE shoulder of Glass Mountain, along trail ca 0.3 mi N of Modoc NF Rd43N99. 2145 Comment
  NY590160  Penstemon davidsonii var. davidsonii D. D. Keck 1927-8-17 1310 Siskiyou Horse Camp, on south side of Mount Shasta. Timberline here. 2470 Comment
  POM299522  Penstemon davidsonii var. davidsonii Marion Ownbey, Fred G. Meyer 1940-7-4 2185 Siskiyou On ridge above head of Brewer Creek, east side of Mt. Shasta. Comment
  HSC40234  Penstemon deustus J. P. Smith 1976-5-4 8663 Siskiyou E boundary of Klamath National Forest along Hwy. 96, above Klamath River 610 Comment
  HSC19130  Penstemon deustus J. O. Sawyer 1969-6-12 871 Siskiyou SE upper slope above Sugar Creek 1707 Comment
  HSC63257  Penstemon deustus M. A. Baker 1979-7-31 1098 Siskiyou Johnson's Hunting Ground, 0.4 k. N of trail to Independence Valley 2000 Comment
  RSA412528  Penstemon deustus M. B. Dunkle 1945-7-6 9207 Siskiyou Black Marble Mtn. Klamath National Forest. Marble Mtns. 2195 Comment
  SFV17484  Penstemon gracilentus P. Wilson 1998-7-21 3542 dup. Siskiyou Mount Shasta. Sand Flat. 2073 Comment
  UC479134  Penstemon gracilentus Marcus E. Jones, A. M. 1931-7-17 28827 Siskiyou Session's Shasta City (Session's) [= Sissons] (Shasta City) Comment
  UC775053  Penstemon gracilentus Carl B. Wolf 1937-8-8 9083 Siskiyou along John S. Everett Memorial Highway (sw side Mt. Shasta); sw side of Mt. Shasta 2133 Comment
  POM251095  Penstemon gracilentus W. Bridge Cooke 1938-8-21 11547 Siskiyou Mt Shasta. Lava flats at Horse camp. 2439 Comment
  RSA21195  Penstemon gracilentus Carl B. Wolf 1937-8-8 9083 Siskiyou SW side of Mt Shasta, along John S. Everett Memorial Hwy. 2134 Comment
  JEPS11460  Penstemon heterodoxus var. shastensis W. L. Jepson 1940-7-1 20077 Siskiyou 6 mi e McCloud (Fowlers Camp); McCloud River 975 Comment
  NY601606  Penstemon heterodoxus var. shastensis F. W. Pennell 1940-7-20 26201 Siskiyou Route 89, west of Bartle 1158.2 Comment
  SJSU6487  Penstemon heterodoxus var. shastensis R. W. Trivelpiece 1972-6-9 101 Siskiyou c. 4 mi E of Grass L 1524 Comment
  UC618805  Penstemon heterodoxus var. shastensis W. Bridge Cooke 1938-7-15 11212 Siskiyou above Bear Springs (Mount Shasta); , above Bear Springs Comment
  HSC36804  Penstemon laetus subsp. laetus J. P. Smith 1974-5-27 7633 Siskiyou Along FS Rd. 47N03 1280 Comment
  HSC72440  Penstemon laetus subsp. sagittatus J. P. Smith, Steve Selva 1970-7-15 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  SEINET11053374  Penstemon laetus subsp. sagittatus Karl A. Vincent, Charlotte A. Labbe 1987-8-12 4510 Siskiyou Cascade Range Mt. Shasta; along E side of US 97 ca 5.1 mi NE of jct. I-5 bus. loop in Weed 1158 Comment
  RSA407901  Penstemon laetus subsp. sagittatus J. William Thompson 1936-7-8 13152 Siskiyou Lava slopes of Lava Beds Nat'l Monument. Comment
  JEPS107410  Penstemon laetus var. sagittatus Lowell Ahart, John Dittes 2005-6-9 12029 Siskiyou Hill, south of a rock fence, about 100 yards northeast of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  JEPS11378  Penstemon laetus var. sagittatus W. L. Jepson 1940-6-30 20066 Siskiyou 6 mi e McCloud (Fowlers Camp, Forest Service Campground on McCloud River); McCloud River, e of McCloud, Fowlers Camp 944 Comment
  SD113664  Penstemon laetus var. sagittatus Darley F. Howe 1977-7-5 5000 Siskiyou 15 miles southeast of Granada 1219 Comment
  UC887116  Penstemon laetus var. sagittatus J. William Thompson 1936-7-8 13152 Siskiyou Lava Slopes of Lava Beds Nat. Monument Lava Beds Nat. Monument Comment
  HSC4839  Penstemon newberryi subsp. berryi J. O. Sawyer 1968-7-9 412 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  HSC663  Penstemon newberryi subsp. berryi William J. Ferlatte 1967-7-9 679 Siskiyou Kidd Creek Trail 1768 Comment
  POM188516  Penstemon newberryi subsp. newberryi Marcus E. Jones 1931-7-17 28821 Siskiyou Shasta City (Session's). Comment
  CAS-BOT-BC239343  Penstemon newberryi var. berryi Wm. Bridge Cooke 1938-6-17 11010 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  POM256008  Penstemon parvulus Marion Ownbey, Ruth P. Ownbey 1938-7-19 1749 Siskiyou 2.5 miles northwest of Dry Lake Lookout, summit of the Siskiyou Mtns. Comment
  HSC81757  Penstemon parvulus Thomas W. Nelson, Jane P. Nelson 1980-7-19 6192 Siskiyou Along FS Rd. 40N17 at trail head to Mavis Lake 1707 Comment
  HSC91115  Penstemon parvulus Jennifer Whipple 1976-7-2 1255 Siskiyou Near edge of Dobkins Lake 2073 Comment
  UC1408801  Penstemon procerus Robert F. Thorne and Fred Oettinger 1969-8-10 38971 Siskiyou s slope of, (at Panther Creek Meadows) Mt. Shasta; Mt. Shasta National Forest, Panther Creek Meadows 2194 Comment
  UC1408761  Penstemon procerus var. brachyanthus Frederick W. Oettinger 1968-8-18 570 Siskiyou w end Hancock Lake Salmon Mts., Marble Mountain Wilderness Area (high lake basins in vicinity of English Peak, Marble Mountain Wilderness area, Salmon Mountains, western Siskiyou County) 1935 Comment
  CHSC57459  Penstemon roezlii L. P. Janeway 1984-6-22 869 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. 1645 Comment
  NY650760  Penstemon rupicola A. Eastwood 1912-9-11 2140 Siskiyou Foot of Black Butte Comment
  UC722467  Penstemon rupicola C. L. Hitchcock and J. S. Martin 1939-7-6 5231 Siskiyou on Takilma - Happy Camp road (peak above and n of Divide of Siskiyou Mts.); peak above and n of Divide of Siskiyou Mts. 1828 Comment
  CHSC86684  Penstemon rydbergii var. oreocharis Jenny Marr 1993-7-1 67 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA0006225  Penstemon shastensis D. D. Keck 1940-6-13 5172 Siskiyou Grass Lake 1540 Comment
  POM253619  Penstemon sonomensis C. Leo Hitchcock 1939-7-6 5231 Siskiyou Peak above and N of Divide of Siskiyou Mts, Takilma Happy Camp road. 1829 Comment
  CHSC118594  Penstemon speciosus Richard R. Halse 2016-5-29 9721 Siskiyou Along Hilt Road by its junction with Interstate Hwy. 5, east of Hilt. 939 Comment
  UC54622  Penstemon speciosus H. M. Hall and E. B. Babcock June, 1903 4071 Siskiyou near Sisson (Mount Shasta); Sierra Nevada Mountains, Mt. Shasta 1066 Comment
  NY661020  Penstemon speciosus K. L. Chambers 1967-6-22 2861 Siskiyou Rocky knoll about 500 ft. above and east of the freeway (Highway 5) at the Hilts exit, Siskiyou Pass. 1097.3 Comment
  POM42979  Penstemon speciosus Geo. D. Butler 1910-5-18 1360 Siskiyou Near Yreka. Comment
  HSC76863  Perideridia oregana K. T. Stillman 1976-9-9 480 Siskiyou Marble Mountain Wilderness Area. Big Rock Camp- Elk Valley Trail 1921 Comment
  CAS-BOT-BC423351  Peritoma platycarpa A. A. Heller 1927-8-2 14440 Siskiyou North end of Shasta Valley, near the Klamath River Comment
  CAS-BOT-BC423352  Peritoma platycarpa A. A. Heller 1927-8-2 14440 Siskiyou North end of Shasta Valley, near the Klamath River Comment
  CAS-BOT-BC418939  Persicaria lapathifolia Carl B. Wolf 1927-8-26 990 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CHSC70020  Phacelia corymbosa Jennifer Whipple 1977-7-22 2035 Siskiyou Klamath Mountains, Mount Eddy. Dobkins Lake drainage on east facing slopes above Dobkins Lake. 2316 Comment
  HSC68417  Phacelia corymbosa Maralyn A. Renner 1980-6-9 839 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  JEPS52297  Phacelia dalesiana Wayne Roderick 1963-6-14 Siskiyou meadow just n Scott Mtn. pass (on road from Callahan to Trinity County communities) 1828 Comment
  HSC66244  Phacelia greenei Maralyn A. Renner 1980-6-9 833 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  JEPS101159  Phacelia greenei Dean W. Taylor 1996-6-18 15704 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1524 Comment
  UC54516  Phacelia hastata H. M. Hall and E. B. Babcock June, 1903 4111 Siskiyou Ash Creek Sierra Nevada Mountains, Mount Shasta 1524 Comment
  SFV3019  Phacelia hastata subsp. compacta W. L. Jepson 1940-6-23 20012 Siskiyou Andesite sta., north of Mount Shasta. 976 Comment
  UC660148  Phacelia hastata subsp. compacta Marion Ownbey and Fred G. Meyer 1940-7-4 2189 Siskiyou on ridge above head of Brewer Creek (e side of mt.); Mt. Shasta Comment
  SEINET12280193  Phacelia heterophylla H. P. Chandler 1901-1 1655 Siskiyou Marble Mountain 2438 Comment
  HSC67637  Phacelia heterophylla subsp. virgata J. P. Smith, Steve Selva 1970-6-16 4044 Siskiyou Etna 897 Comment
  SBBG65340  Phacelia imbricata Mrs. H. P. Bracelin 1931-6-20 430 Siskiyou ca. 2 mi NW of Mt Shasta City 1051 Comment
  CAS-BOT-BC145045  Phacelia leonis Lincoln Constance; Rimo Bacigalupi; Lawrence R. Heckard 1960-7-20 3691 Siskiyou Twin Valley, ca. 5 miles southwest of Poker Flat, Siskiyou Mountains 1554 Comment
  JEPS105461  Phacelia linearis Dean W. Taylor 1995-6-4 14969 Siskiyou 3 miles west of Highway 89 on Grenada Road; Shasta Valley; Klamath National Forest; (ca. 10 miles North of Weed) 1158 Comment
  RSA695873  Phacelia linearis D. W. Taylor 1995-6-4 14969 Siskiyou Three miles west of Highway 89 on Grenada Road; Shasta Valley; Klamath National Forest; (ca. ten miles north of Weed). 1159 Comment
  UC796504  Phacelia linearis Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11832 Siskiyou between Callahan Gazelle; Gazelle Mountain Grade 1499 Comment
  UC1034049  Phacelia mutabilis W. Bridge Cooke 1941-9-10 16308 Siskiyou vicinity of Horse Camp Mt. Shasta Comment
  UC909977  Phacelia mutabilis A. A. Heller 1915-8-26 12231 Siskiyou n side Mt. Eddy 1981 Comment
  UC1950197  Phacelia pringlei Barbara Ertter with Julie Kierstead and Jim Nelson 1990-7-15 9371 Siskiyou ca 1 mi E of Toad Lake at head of Middle Fk Sacramento River, ca 8 airmiles W of Mt Shasta City Comment
  POM299318  Phacelia pringlei J. T. Howell 1937-7-29 13612 Siskiyou Scott Mountain between Trinity and Siskiyou counties. Comment
  HSC62291  Phacelia procera Ruby Van Deventer 1960-7-7 Siskiyou Youngs Valley Comment
  POM74214  Phacelia procera Geo. D. Butler 1910-7-8 1679 Siskiyou Shackleford Creek. 1524 Comment
  HSC67974  Philadelphus californicus J. P. Smith, Steve Selva 1970-6-14 3890 Siskiyou 1 mi. E of Steinacher Creek Rd. on Rd. to Forks of Salmon Comment
  RSA0057591  Philadelphus lewisii Geo. D. Butler 1910-6-12 1558 Siskiyou Yreka Creek. Comment
  RSA184776  Phleum alpinum Gilbert Muth 1966-8-1 488 Siskiyou Marble Valley Horse Pasture, Marble Mountains. 1793 Comment
  SEINET10954464  Phleum alpinum H. E. Brown 1897-6-11 Brown 445 Siskiyou north side Mt. Shasta 1524 Comment
  RSA161689  Phlox adsurgens Lee W. Lenz 1961-6-22 24361 Siskiyou 15 miles N of Happy Camp, road to O'Brien Comment
  UC455646  Phlox austromontana I. J. Condit 1911-7-22 Siskiyou Horse Camp Mt. Shasta 2438 Comment
  JEPS82675  Phlox diffusa Wayne Roderick 1984-6-7 Siskiyou sw of Stewarts Springs; Cabin Meadow 1935 Comment
  CAS-BOT-BC232827  Phlox hirsuta L. B. Kildale 1930-6-1 9830 Siskiyou Mill Creek, near Etna Mills Comment
  JEPS69987  Phlox speciosa subsp. occidentalis Geo. D. Butler 1909-4-13 650 Siskiyou near Yreka Comment
  SEINET3145545  Phlox speciosa subsp. occidentalis G. D. Butler 1910-4-15 1175 Siskiyou Yreka Comment
  UC585232  Phlox speciosa subsp. occidentalis E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1943 Siskiyou 8 mi s Yreka 822 Comment
  RSA259573  Phlox speciosa subsp. occidentalis J. P. Smith 1974-5-25 7502 Siskiyou Along road 8, 2.4 miles west of its junction with State Route 3. 976 Comment
  RSA614434  Phlox speciosa subsp. occidentalis K. L. Chambers, C. G. Carlbom 1962-4-21 2111 Siskiyou Highway 99, 6.2 miles south of the center of Yreka Comment
  LA209898  Phoradendron bolleanum Louis C. Wheeler; 1934-6-26 2789 Siskiyou Siskiyou Mountains, Camp Lowe, Klamath River 761 Comment
  CAS-BOT-BC135339  Phoradendron juniperinum L. E. Smith 1914-3-17 586 Siskiyou Weed Comment
  UC403987  Phoradendron libocedri Mrs. K. J. Stirring 1904-1 Siskiyou Etna Mills Comment
  LA41254  Phyllodoce empetriformis John Thomas Howell; 1937-7-24 13396 Siskiyou Caribou Basin, Salmon-Trinity Alps 1981 Comment
  CAS-BOT-BC60773  Physaria occidentalis Edwin Bingham Copeland 1903-7-6 s.n. Siskiyou Cottonwood Creek, Hornbrook. Comment
  CAS-BOT-BC140489  Physocarpus Alice Eastwood 1917-9-2 6651 Siskiyou Shasta Springs Comment
  CAS-BOT-BC140610  Physocarpus capitatus A. A. Heller 1915-7-18 12109 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  POM208276  Physocarpus capitatus Louis C. Wheeler 1934-7-5 2877 Siskiyou Beaver Creek at Deer Creek, Siskiyou Mts. 976 Comment
  RSA300521  Physocarpus capitatus Walter Wisura, John Dourley 1982-10-16 3874 Siskiyou Shores of Castle Lake, SW of town of Mt. Shasta. 1646 Comment
  CAS-BOT-BC78162  Picea breweriana Marion Ownbey; Fred G. Meyer 1940-7-6 2205 Siskiyou Summit of Cayenne Ridge on west side, Marble Mountain Comment
  CAS-BOT-BC78176  Picea breweriana John Thomas Howell 1937-7-24 13413 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  JEPS46723  Picea breweriana W. L. Jepson 1907-7-10 2869 Siskiyou 6 mi w Elbow Camp; Klamath Range Comment
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Nov 12 2011
  NY30478  Picea breweriana F. M. Ownbey 1940-7-6 2205 Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA0086516  Pinus albicaulis Bonnie C. Templeton 1968-6-13 11334 Siskiyou Mt. Shasta, in the region of Panther Meadows. 2804 Comment
  CAS-BOT-BC78322  Pinus attenuata M. P. Anderson 1902-2-16 s.n. Siskiyou Seiad Valley, Post Office, forks of Seiad Creek Comment
  CAS-BOT-BC73312  Pinus balfouriana John Thomas Howell 1939-8-8 15166 Siskiyou Marble Mts., Black Mt. Comment
  HSC31504  Pinus balfouriana Steve Selva, Roger Jensen 1974-8-25 50 Siskiyou Top of ridge S of Little Duck Lake Comment
  UC1452401  Pinus balfouriana Ronald J. Mastrogiuseppe 1967-6-30 Siskiyou slope of Mount Eddy Mount Eddy 2225 Comment
  CAS-BOT-BC78437  Pinus contorta subsp. murrayana Elmer I. Applegate 1935-6-12 9519 Siskiyou Upper Ice Cave area, Lava Beds National Monument Comment
  UC618593  Pinus contorta subsp. murrayana W. B. Cooke 1938-8-24 11585 Siskiyou along Round-the Mountain Road; Mount Shasta Comment
  CAS-BOT-BC78717  Pinus jeffreyi J. M. Tucker 1963-8-18 3768 Siskiyou between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area 2103 Comment
  HSC1516  Pinus lambertiana R. C. Wunner 1965-8-21 463 Siskiyou California Lava Beds National Monument; 1/4 mile from Caldwell Butte towards Caldwell Ice Cave 1402 Comment
  JEPS47929  Pinus lambertiana W. L. Jepson 1914-8-9 Siskiyou near Mt. Shasta; McCloud Comment
  NY61628  Pinus lambertiana I. L. Wiggins 1955-7-24 13496 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
  HSC67696  Pinus monticola John Palmer 1980-7-24 579 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  SEINET10966122  Pinus ponderosa Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6982 Siskiyou Western Yellow Pine, Libocedrus, Douglas Fir forest, 6 mi SW of Callahan. 1524 Comment
  CAS-BOT-BC72817  Pinus sabiniana Frank Callahan 2006-9-1 s.n. Siskiyou Forks of Salmon 7.5', south fork 381 Comment
  UC78224  Plagiobothrys hispidulus T. S. Brandegee July, 1889 Siskiyou Sisson's Comment
  SBBG28858  Plagiobothrys hispidulus L. C. Wheeler 1934-7-3 2869 Siskiyou Soda Crk, Sterling Mtn, Siskiyou Mtns 1676 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
  POM72153  Plagiobothrys nothofulvus Geo. D. Butler 1910-5-6 1293 Siskiyou Near Yreka. Comment
  CAS-BOT-BC136640  Platanthera Arthur Menzies 1962-7-21 s.n. Siskiyou Field redacted by CAS, contact the data manager for more information 1706 Comment
  UC1045261  Platanthera sparsiflora W. Bridge Cooke 1940-7-7 15277 Siskiyou Wagon Camp Mount Shasta 1737 Comment
  UC642559  Platanthera sparsiflora W. Bridge Cooke 1939-7-7 13612 Siskiyou Sedge Bog at Wagon Camp Mount Shasta 1737 Comment
  HSC35286  Platanthera sparsiflora A. Montalvo, J. D. Ackerman 1974-7-2 354 Siskiyou Along road to Middle Fork Sacramento River and Toad Lake. West of Mt. Shasta City Comment
  RSA78325  Platanthera sparsiflora Philip A. Munz 1952-7-1 17860 Siskiyou Baldy Mtn road, NW of Happy Camp, Siskiyou Mts. 1220 Comment
  UCD19277  Platanthera sparsiflora Julie Knorr 1980-7-15 68 Siskiyou 1 mi. up Houston Creek Trail above road. 1676 Comment
  SEINET3162860  Plectritis G. D. Butler 1910-3-24 1139 Siskiyou Shasta River Hills Comment
  RSA600378  Plectritis macrocera Louis C. Wheeler 1935-6-1 3537 Siskiyou Siskiyou Mountains: Yreka Creek. 854 Comment
  POM67770  Plectritis macrocera subsp. grayi Geo. D. Butler 1910-4-15 1176 Siskiyou Yreka Creek. Comment
  HSC63298  Pleuricospora fimbriolata M. A. Baker 1979-7-31 1094 Siskiyou Head of Tickner Creek on trail to Johnson's Hunting Trail 1400 Comment
  UCR266902  Poa Robert Tofsrud 1948-8-2 s.n. Siskiyou Mount Shasta, Panther Meadow 2439 Comment
  UC450465  Poa bulbosa Morris Halperin 1930-5-17 304 Siskiyou Geo. Gray's Ranch Yreka Comment
  CAS-BOT-BC255056  Poa compressa L. P. Janeway 1983-8-26 599 Siskiyou Siskiyou Mountains. At Poker Flat, front edge of the upper part of the meadow 1524 Comment
  HSC63  Poa compressa William J. Ferlatte 1966-6-23 139 Siskiyou Along the Yellow Rose Mine Trail. 1677 Comment
  HSC69043  Poa piperi Maralyn A. Renner 1980-8-7 2349 Siskiyou Klamath National Forest, S of Rattlesnake Meadow. 1799 Comment
  UCD91980  Poa pratensis H. S. Yates 1936-6-20 5800 Siskiyou Siskiyou Summit. 1371 Comment
  RSA129263  Poa pratensis H. S. Yates 1936-6-20 5806 Siskiyou Siskiyou Summit 1372 Comment
  CHSC91252  Poa pratensis subsp. pratensis Lowell Ahart; John Dittes 2005-6-9 12033 Siskiyou Hill, along a rock fence, about 100 yards southeast 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
  UC1265428  Poa pratensis subsp. pratensis Frederick W. Oettinger and R. F. Thorne 1969-8-5 1191 Siskiyou trail English Lake to Abbotts (vicinity of English Peak); Salmon Mts, High Lake Basins, Marble Mt Wilderness Area 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
  CAS-BOT-BC443956  Poa pringlei Dana York 2012-7-21 3142 Siskiyou Siskiyou Mountains. Klamath National Forest, Siskiyou Mountains, a few meters below summit of Red Butte. 2040 Comment
  LA12614  Poa pringlei Jason Swallen; 1939-7-26 13762 Siskiyou Mt. Shasta, Along the Summit Trail below Lake Helen 2895 Comment
  CAS-BOT-BC237707  Poa secunda Elmer I. Applegate 1935-6-8 9434 Siskiyou Bearpaw Cave, Lava Beds National Monument Comment
  RSA238361  Poa secunda Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1231 Siskiyou South of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  RSA239018  Poa secunda Frederick W. Oettinger 1969-9-2 1594 Siskiyou north side of English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  UCD90327  Poa secunda A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3404 Siskiyou Canyon N of Willow Creek, 5 miles W of Gazelle. Comment
  UC1132617  Poa secunda subsp. juncifolia H. S. Yates 1936-6-21 5823 Siskiyou 1 mi se Gazelle; Etna Quadrangle Comment
  CAS-BOT-BC243225  Poa secunda subsp. secunda Alice Eastwood 1923-5-27 11962 a Siskiyou Shasta Springs Comment
  SJSU6534  Poa secunda subsp. secunda R. W. Trivelpiece 1973-6-28 160 Siskiyou Big Duck Lake, Scott River drainage c. 7.5 mi due west of Callahan 2042 Comment
  UC1132850  Poa secunda subsp. secunda M. H. Mitchell 1936-5-8 4 Siskiyou base of Schonchin Butte; Modoc Lava Beds Nat'l Monument, Dorris Quadrangle Comment
  UCD91758  Poa wheeleri Leo Whitney 1935-7-15 3473 Siskiyou near Bullseye Lake, 2 miles southeast of Medicine Lake. Comment
  RSA126050  Polemonium californicum I. L. Wiggins 1955-7-29 13573 Siskiyou North-facing slope between Caribou Lake and Pass to Thompson Creek. 1957 Comment
  CAS-BOT-BC232900  Polemonium carneum Geo. D. Butler 1910-5-15 1344 Siskiyou McAdams Creek Comment
  JEPS69889  Polemonium carneum Geo. D. Butler 1909-4-28 737 Siskiyou McAdams Creek Comment
  UC602586  Polemonium pulcherrimum W. Bridge Cooke 1938-9-8 11646 Siskiyou Mt. Shasta 2468 Comment
  NY337078  Polemonium tricolor H. P. Chandler 06 1901 1671 Siskiyou Marble Mountain 2438.4 Comment
  RSA11904  Polygonum amphibium var. stipulaceum Elmer I. Applegate 1923-8-19 3892 Siskiyou Medicine Lake Comment
  JEPS93926  Polygonum bistortoides Vernon H. Oswald and Lowell Ahart 1998-8-3 9436 Siskiyou w of Kangaroo Lake (near the Pacific Crest Trail in the Scott Mountains); Scott Mountains 1981 Comment
  UC375154  Polygonum californicum Geo. D. Butler 1908-7-23 192 Siskiyou dry land near Yreka Comment
  CAS-BOT-BC414591  Polygonum douglasii John Thomas Howell 1937-7-21 13165 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC414592  Polygonum douglasii Alice Eastwood 1921-7-28 10877 Siskiyou Medicine Lake Comment
  UC164402  Polygonum douglasii Geo. D. Butler 1910-7-31 1803 Siskiyou Yreka Comment
  HSC32755  Polygonum douglasii Frederick W. Oettinger 1968-9-2 676 Siskiyou Marble Mtn. Wilderness Area, Horse Range Lake 1860 Comment
  POM280357  Polygonum douglasii George B. Grant 1906-7-25 7101 Siskiyou Lake Tahoe. Comment
  UC375323  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 1909-8-6 184 Siskiyou summit s Marble Valley Comment
  JEPS75025  Polygonum douglasii subsp. spergulariiforme L. R. Heckard and R. Bacigalupi 1975-10-9 4209 Siskiyou along Dunsmuir Avenue about 1 mi s Dunsmuir (just off Interstate 5, bottom of road bank) Comment
  POM211511  Polygonum douglasii var. latifolium Louis C. Wheeler 1934-7-3 2859 Siskiyou Soda Creek, Sterling Mt. Siskiyou Mountains. 1677 Comment
  SEINET13711311  Polygonum polygaloides subsp. confertiflorum Lowell William Ahart, Lowell William Ahart 1998-1 9335 Siskiyou NE of Weed and E of Grass Lake at Gravel Pit on S Side of Tennant Rd. (T44N, R1W, sec 32, NW 1/4) 4600 Ft. 1402 Comment
  HSC92955  Polygonum polygaloides subsp. kelloggii Jennifer Whipple 1976-7-9 1389 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC1037193  Polygonum shastense Leo Whitney 1934-6-17 1508 Siskiyou Mt. Shasta; n side 3048 Comment
  UC6736  Polygonum shastense W. H. Brewer 1862-9-13 1382 Siskiyou near Camp 99; Mt. Shasta 2438 Comment
  CAS-BOT-BC237394  Polypogon monspeliensis Elmer I. Applegate 1923-8-21 3924 Siskiyou Willow Creek, near Dome Mountain, S of Lower Klamath Marsh Comment
  HSC58845  Polystichum imbricans subsp. imbricans Marvin Butler 1971-7-20 169 Siskiyou Near Twin Lakes, close to the town of Cave Junction 1585 Comment
  CAS-BOT-BC76773  Polystichum imbricans subsp. imbricans E. L. H. Knoche 1890-5-31 s.n. Siskiyou Moshrae Falls, Sacramento River Comment
  HSC77280  Polystichum imbricans subsp. imbricans L. P. Janeway 1983-8-28 625 Siskiyou Along USFS 18N33 1 mi. from Grayback Rd. 1037 Comment
  HSC92661  Polystichum lemmonii Jennifer Whipple 1976-9-3 1783 Siskiyou W facing slope of the ridge between Durney Lake and Little Crater Lake 2195 Comment
  JEPS89825  Polystichum lemmonii Dean William Taylor 1972-7-4 1976 Siskiyou near Lily Pad Lake 3 mi. w. Cook and Green Pass 1981 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
  UC1076339  Polystichum lemmonii Dorothy Tebbe 1929-6-28 26 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC72374  Polystichum lemmonii K. T. Stillman 1976-6-26 115 Siskiyou Marble Mountain Wilderness Area, Scott Bar quad. 2011 Comment
  CAS-BOT-BC72391  Polystichum lemmonii Louis C. Wheeler 1934-8-13 3114 Siskiyou Klamath National Forest, E. Fork Horse Cr. 1981 Comment
  CAS-BOT-BC72393  Polystichum lemmonii Clare B. Hardham 1961-7-1 7991 Siskiyou White Mountain, Siskiyou Mountains Comment
  HSC79123  Polystichum lemmonii C. J. Thomas 1983-10-1 79 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  HSC79182  Polystichum lemmonii C. J. Thomas 1983-10-1 73 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  SEINET10793990  Polystichum lemmonii George Yatskievych, Kay Yatskievych 1988-8-25 Yatskievych 88 -204 Siskiyou 1.3 miles N of Park Creek Crest on paved Forest Service Road 42N17, SW of Weed. T41N R06W S33 NW4. 2000 Comment
  CAS-BOT-BC72397  Polystichum lonchitis Gilbert Muth 1965-8-3 s.n. Siskiyou Pothole in Marble, Marble Valley Comment
  JEPS100527  Polystichum lonchitis Dean Wm. Taylor with Glenn L. Clifton 1996-7-26 15859 Siskiyou Cliff Lake, The Eddys (about 15 air miles southwest of Weed); Shasta-Trinity National Forest 1920 Comment
  UCD78121  Polystichum lonchitis Robert E. Preston 2001-6-23 1588 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, T42N R1W nw 1/4 of ne 1/4 Section 23 1950 Comment
  CAS-BOT-BC72513  Polystichum scopulinum Louis C. Wheeler 1934-8-16 3172 Siskiyou 2 miles east of White Mt., Siskiyou Mts. 1920 Comment
  RSA693354  Polystichum scopulinum L. C. Wheeler 1934-8-13 3113 Siskiyou East Fork Horse Creek, Siskiyou Mountains 1982 Comment
  RSA693356  Polystichum scopulinum L. C. Wheeler 1934-8-6 3059 Siskiyou Siskiyou Mountains: Rocky Gulch off Jaynes Canyon. Mt. Diablo Mer. 1829 Comment
  RSA184758  Populus tremuloides Gilbert Muth 1966-7-19 420 Siskiyou Black Mountain Trail. Meadow above Marble Valley. Marble Mountains. 1860 Comment
  RSA237998  Populus tremuloides Frederick W. Oettinger 1968-8-17 558 Siskiyou N of Pine Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  CAS-BOT-BC102957  Populus trichocarpa Alice Eastwood 1917-9-2 6670 Siskiyou Shasta Springs Comment
  CAS-BOT-BC102961  Populus trichocarpa Grant 1902-9-1 5230 Siskiyou Sisson 1127 Comment
  CAS-BOT-BC102962  Populus trichocarpa Alice Eastwood 1917-9-2 6687 Siskiyou Shasta Springs Comment
  HSC2240  Populus trichocarpa Geo. D. Butler 1910-4-16 1177 Siskiyou Yreka Creek Comment
  JEPS80503  Populus trichocarpa Gilbert Muth 1966-7-19 421 Siskiyou Marble Gap Trail; Marble Mt. Wilderness Area, Marble Gap Trail 1828 Comment
  CAS-BOT-BC102958  Populus trichocarpa W. B. C. 1939-8-10 13855 Siskiyou in the upper portion of Mud Creek Canyon 1828 Comment
  RSA756938  Portulaca oleracea R. F. Thorne 1969-8-2 63346 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  HSC29383  Potentilla drummondii Frederick W. Oettinger 1968-9-7 769 Siskiyou Marble Mountain Wilderness Area, ridge SE of Tobacco Lake Meadow 1890 Comment
  RSA211490  Potentilla glandulosa subsp. ashlandica William J. Ferlatte 1966-7-7 198 Siskiyou Caribou Basin. 1982 Comment
  RSA237862  Potentilla glandulosa var. nevadensis Frederick W. Oettinger 1968-8-22 598 Siskiyou Ridge between Diamond Lake and English Peak. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  CHSC86636  Potentilla gracilis Jenny Marr 1993-7-1 19 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  SBBG3032  Potentilla gracilis H. and M. Dearing 1939-6-30 3758 Siskiyou Callahan-Trinity Alps Rd 1828 Comment
  JEPS80606  Potentilla gracilis var. fastigiata Gilbert Muth 1966-7-31 470 Siskiyou north side of Black Mountain Marble Mt. Wilderness Area, n side of Black Mountain 1981 Comment
  CAS-BOT-BC540564  Potentilla gracilis var. fastigiata Doris K. Kildale 1928-8-18 6491 Siskiyou At head of north fork of Salmon River at Finley's Upper Camp 1524 Comment
  CAS-BOT-BC540573  Potentilla gracilis var. fastigiata Alice Eastwood 1921-7-29 10985 Siskiyou Pumice Mt. Comment
  UC860723  Potentilla millefolia A. A. Heller 1938-7-13 15266 Siskiyou about a mi s Bray; s of Bray 1402 Comment
  CAS-BOT-BC158535  Potentilla millefolia L. E. Smith 1913-5-2 245 Siskiyou Bray Comment
  HSC32245  Primula suffrutescens J. O. Sawyer 1970-8-5 2357 Siskiyou Sawtooth Ridge S of Caribou Lake 2195 Comment
  CAS-BOT-BC516390  Prosartes hookeri Alice Eastwood 1921-7-30 11031 Siskiyou Soda Creek Canyon Comment
  UCD18943  Prunella vulgaris A. H. Murphy 1955-7-27 55 B Siskiyou Klamath National Forest, Marble Mountains, Cold Springs Meadow. 1676 Comment
  HSC29322  Prunella vulgaris subsp. lanceolata Frederick W. Oettinger 1969-8-18 1422 Siskiyou Marble Mountain Wilderness Area, W of Horse Range Lake outlet 1822 Comment
  HSC120  Prunus emarginata William J. Ferlatte 1967-6-27 532 Siskiyou Big Flat, near public camp 1524 Comment
  HSC18926  Prunus emarginata J. O. Sawyer 1969-8-1 1664 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  RSA75644  Prunus emarginata Albert M. Vollmer 1951-6-2 68 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway. Comment
  SEINET7347118  Prunus emarginata E. K. Balls 1950-5-15 14701 Siskiyou Lava Beds National Monument, below Indian Well Public Camp 1402 Comment
  UCSB24428  Prunus subcordata Favero, R. 1968-3-27 Siskiyou 1 mile southeast of Hombrook, on Ager road, Siskiyou Mountains. 701 Comment
  HSC76874  Prunus virginiana var. demissa K. T. Stillman 1976-6-26 136 Siskiyou Marble Mtn. Wilderness Area, Kings Castle 2134 Comment
  UC527336  Prunus virginiana var. demissa C. B. Wolf 1931-9-2 2389 Siskiyou near Fish Hatchery at Mount Shasta City (Sisson) Fish Hatchery; Mount Shasta City (Sisson) 1066 Comment
  CAS-BOT-BC357405  Pseudognaphalium microcephalum Alice Eastwood 1921-7-26 10868 Siskiyou Soda Creek Comment
  JEPS24617  Pseudognaphalium thermale Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6770 Siskiyou in the 1.5 mi stretch between Shasta Retreat (n outskirts of Dunsmiur) ro Mossbrae Falls and Shasta Springs; Sacramento River Canyon, S. P.(Shasta Route) railwayi 731 Comment
  CAS-BOT-BC239815  Pseudoroegneria spicata Geo. D. Butler 1909-6-27 848 Siskiyou Bluff of Klamath River Comment
  UC204803  Pseudoroegneria spicata subsp. spicata Geo. D. Butler 1910-7-3 1626 Siskiyou Goosenest Foothills 1219 Comment
  CAS-BOT-BC80165  Pseudotsuga menziesii W. B. C. 1938-9-2 11596 Siskiyou Sisson Southern Trail 1524 Comment
  HSC17963  Pterospora andromedea R. C. Wunner 1965-7-17 399 Siskiyou Lava Beds National Monument. Along upper edge of Black Lava flow near Old Ticner Rd. 1616 Comment
  RSA238574  Pterospora andromedea Frederick W. Oettinger 1968-8-17 556 Siskiyou NW of Pine lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  SEINET236688 Image available Puccinellia nuttalliana Louis C. Wheeler 1935-6-30 3635 Siskiyou 3 mi. south of Grenada Shasta Valley 792 Comment
  SD104903  Purshia tridentata Darley Howe 1979-6-26 Siskiyou Military Pass Rd, 3 mi. SE of Ca. Hwy 97, near Granada Comment
  CAS-BOT-BC147896  Purshia tridentata var. tridentata Geo. D. Butler 1910-4-16 1184 Siskiyou Shasta River Comment
  CAS-BOT-BC147899  Purshia tridentata var. tridentata Carl B. Wolf 1941-7-26 11076 Siskiyou SW. end Little Shasta Valley, 12 mi. NE. Weed on U.S. Highway #97 at junction with rd. to Montague 914 Comment
  CAS-BOT-BC147907  Purshia tridentata var. tridentata A. A. Heller 1916-6-23 12439 Siskiyou Near Black Butte north of Sisson 1127 Comment
  CAS-BOT-BC147908  Purshia tridentata var. tridentata G. P. Rixford s.n. Siskiyou South side of Shaft Rock, Mt. Hilt Comment
  UCD113276  Purshia tridentata var. tridentata K. M. Meyer; A. Townesmith 2007-8-2 184 Siskiyou Shasta-Trinity National Forest. 0.1 mile on Forest Service Road 43N21, 12.5 miles on Highway 97, E side of road. 1218 Comment
  UCSB12915  Purshia tridentata var. tridentata Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  UC21721  Pyrola asarifolia Miss M. A. Huntley 1896-6-28 Siskiyou Sisson's Comment
  HSC23584  Pyrola asarifolia subsp. asarifolia J. O. Sawyer 1970-7-3 2312 Siskiyou W of camp 3 1524 Comment
  HSC29312  Pyrola crypta Frederick W. Oettinger 1968-8-7 439 Siskiyou Marble Mtn. Wilderness Area, just N of Tobacco Lake 1890 Comment
  HSC61839  Pyrola dentata Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  RSA467923  Pyrola dentata M. B. Dunkle 1944-7-17 9118 Siskiyou Deer Creek. Comment
  UC1190175  Pyrola picta Ira L. Wiggins 1955-7-23 13472 Siskiyou Banks of China Creek 1097 Comment
  UCD77971  Pyrola picta Robert E. Preston 2001-7-20 1676 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
  CAS-BOT-BC466153  Pyrola picta Wm. Bridge Cooke 1938-8-5 11454 Siskiyou Sisson Southern Trail, Mount Shasta [one specimen observed at 9000'] 1828 Comment
  CAS-BOT-BC362270  Pyrrocoma carthamoides var. cusickii Louis C. Wheeler No date on label 2830 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. Comment
  CAS-BOT-BC62715  Quercus chrysolepis C. Hart Merriam 1919-10-17 s.n. Siskiyou Sacramento Canyon, near Sisson Comment
  CAS-BOT-BC68645  Quercus chrysolepis John Thomas Howell 1937-7-26 13543 Siskiyou Caribou Gulch Comment
  HSC36690  Quercus chrysolepis Brent Whitely 1975-6-21 15 Siskiyou 223 Comment
  UC164395  Quercus chrysolepis Geo. D. Butler 1908-8-11 231 Siskiyou Shackleford Creek 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
  CAS-BOT-BC94645  Quercus garryana Doris Overman 1919-9-1 s.n. Siskiyou Yreka Comment
  CAS-BOT-BC94659  Quercus garryana Carl B. Wolf 1927-8-27 1109 Siskiyou On the Klamath River, Happy Camp Comment
  SFV17716  Quercus garryana var. breweri J. M. Tucker 1972-8-8 4245 Siskiyou Marble Mountains Marble Mountains. Trail from Whiskey Camp to Elk Peak, about 2.5 miles west-southwest of Marble Valley Guard Station. 1829 Comment
  UCD46152  Quercus garryana var. breweri John M. Tucker 1972-8-8 4245 Siskiyou California, Siskiyou Co.; Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 mi. west-southwest of Marble Valley Guard Station (extreme southeast corner of Section 20, R. 11W., T. 42N); Comment
  CAS-BOT-BC104371  Quercus sadleriana Gilbert Muth 1966-8-5 501 Siskiyou Dryish meadow, on Blacj Mountain trail, marble Mts. 1798 Comment
  CDA22027  Quercus sadleriana D. G. Kelch 2007-7-25 7 .499 Siskiyou Indian Creek Rd., just S of Greyback Summit. Comment
  HSC19218  Quercus sadleriana J. O. Sawyer 1968-9-9 659 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  SBBG47322  Quercus sadleriana J. T. Howell, G. H. True 1972-6-8 Siskiyou S of summit on rd from Takilma to Happy Camp Comment
  UC1409454  Quercus sadleriana Frederick W. Oettinger 1968-9-7 761 Siskiyou n shore Tobacco Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, Engliah P 1889 Comment
  UCD47247  Quercus sadleriana R. G. Schultz 1965-10-1 2 ,3,5 Siskiyou Red Rock Valley, Siskiyou County, California. 1584 Comment
  UCD47261  Quercus sadleriana John M. Tucker 1972-8-8 4247 B Siskiyou (Q. garryana Hook. var. breweri (Engelm.) Jepson). California, Siskiyou Co.; Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 mi. west-southwest of Marble Valley Guard Station (extreme southeast corner of Section 20, R.11W., T.42N. 1828 Comment
  HSC29466  Quercus vacciniifolia Frederick W. Oettinger 1968-9-5 704 Siskiyou Marble Mtn. Wilderness Area, SE slope along trail from English to Diamond Lake 1890 Comment
  HSC68525  Quercus vacciniifolia Maralyn A. Renner 1980-6-23 999 Siskiyou W Fork Seiad Creek 878 Comment
  HSC69561  Quercus vacciniifolia Maralyn A. Renner 1980-8-6 2288 Siskiyou Along trail, 0.5 mi. SE of Cyclone Gap. 1585 Comment
  UC1040687  Quercus vacciniifolia Beecher Crampton 1956-8-21 3847 Siskiyou just above junction of the North Fork with the South and Middle Fork; Canyon of the Sacramento River 1066 Comment
  UC455272  Quercus vacciniifolia I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1676 Comment
  SEINET11805954  Raillardella pringlei C. G. Pringle 1882-1 s.n. Siskiyou head of Sacramento River Comment
  UC166048  Ranunculus aquatilis var. capillaceus Geo. D. Butler 1908-10-16 545 Siskiyou Oro Fino Creek Comment
  UC165947  Ranunculus flammula Geo. D. Butler 1910-7-12 1741 Siskiyou Shackleford Creek 1219 Comment
  UC70366  Ranunculus flammula Milo S. Baker 1898-8-1 511 Siskiyou Medicine Lake Comment
  JEPS55078  Ranunculus glaberrimus Geo. D. Butler 1910-3-7 1117 Siskiyou Shasta River Canyon Comment
  HSC73339  Ranunculus occidentalis Gail Newton 1980-6-20 467 Siskiyou Near Bald Mtn. 1097 Comment
  HSC37533  Ranunculus occidentalis var. occidentalis J. P. Smith 1974-5-26 7569 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC39294  Ranunculus occidentalis var. occidentalis J. O. Sawyer 1970-4-4 2082 Siskiyou Along Sugar Creek 823 Comment
  HSC62284  Ranunculus orthorhynchus Al Hobart 1971-7-14 Siskiyou Youngs Valley 1220 Comment
  UC54285  Ranunculus orthorhynchus var. orthorhynchus H. M. Hall and E. B. Babcock June, 1903 4066 Siskiyou Sisson Sierra Nevada Mountains, Mount Shasta (meadows around) 1066 Comment
  CDA3484  Ranunculus repens C. S. Giebner 1959-5-29 Siskiyou Copeland Ranch, Weed. 0 Comment
  UC747763  Rhamnus Isabelle C. Kimber 1934-6-9 20 Siskiyou just above Sacramento River confluence with Ney Creek (Steelbridge Camp, Sacramento River); Sacramento River 731 Comment
  POM211390  Rhamnus ilicifolia Louis C. Wheeler 1934-11-7 3360 Siskiyou Siskiyou Mountains: Gottville, Klamath River. 567 Comment
  RSA7759  Rhamnus rubra Doris K. Kildale 1929-6-22 8032 Siskiyou Base of Black Butte Mt. Shasta Comment
  UCSB16775  Rhododendron macrophyllum Muller, Katherine 1954-6-23 Siskiyou Siskiyou Mt., 1 mi. below Hazel View Summit, 3 mi. NE of Idlewild 742 Comment
  RSA697561  Rhododendron macrophyllum Leo Miller 1938-07 s.n. Siskiyou Siskiyou, Mountains. 915 Comment
  UC456172  Rhododendron occidentale I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Castle Lake Comment
  CAS-BOT-BC56660  Rhododendron occidentale J. H. Thomas 1949-6-16 958 Siskiyou Between Fort Jones and Etna Comment
  CAS-BOT-BC200405  Rhododendron occidentale var. paludosum A. A. Heller 1905-6-1 7948 Siskiyou Upper Soda Spring Comment
  CAS-BOT-BC438007  Ribes L. B. Kildale 1930-6-1 9776 Siskiyou Black Bear trail to Sawyers Bar Comment
  CAS-BOT-BC438008  Ribes W. R. Dudley 1893-6-26 s.n. Siskiyou Lava slopes on Mt. Shasta Comment
  CAS-BOT-BC92529  Ribes binominatum Doris K. Kildale 1928-7-2 5406 Siskiyou Salmon Summit via Horn Creek Trail. 1981 Comment
  CAS-BOT-BC92532  Ribes binominatum W. R. Dudley 1901-8-18 s.n. Siskiyou Near Jackson Lake, Salmon Mountains. Comment
  RSA47644  Ribes binominatum Roxana S. Ferris, Laura Lorraine 1948-6-12 11769 Siskiyou About 6 miles from Etna on forks of Salmon Road. 1707 Comment
  CAS-BOT-BC92874  Ribes bracteosum T. H. Harris 1951-6-1 s.n. Siskiyou Indian Creek, Happy Camp. 457 Comment
  HSC67825  Ribes cereum J. O. Sawyer, J. Cole 1980-7-20 3764 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  CAS-BOT-BC6178  Ribes glanduliferum Amos Arthur Heller 1905-6-9 8005 Siskiyou Yreka Comment
  HSC19426  Ribes lacustre J. O. Sawyer 1968-6-18 220 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  UC195273  Ribes lacustre Annie M. Alexander and Louise Kellogg 1911-6-24 184 Siskiyou Jackson Lake 1798 Comment
  UC154065  Ribes lobbii Harley P. Chandler June, 1901 1557 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  UC165921  Ribes lobbii Geo. D. Butler 1910-7-14 1782 Siskiyou Shackelford Creek Comment
  RSA0021149  Ribes lobbii Geo. D. Butler 1910-4-22 1223 Siskiyou Quartz Valley. Comment
  SEINET13942602 Image available Ribes lobbii James Payne Smith Jr 1977-1 9072 Siskiyou The road leading through International Paper property to the Duck Lakes trailheads. T40N, R9@, Sec 7. Elev 5000 ft 1524 Comment
  HSC33925  Ribes marshallii J. O. Sawyer 1968-7-2 382 Siskiyou Upper drainage of Joe Creek 1677 Comment
  SEINET13942695 Image available Ribes nevadaense Alice Eastwood 2012-1 1324 Siskiyou Cantara Comment
  CAS-BOT-BC219263  Ribes nevadense H. E. Brown 1897-7-15 586 Siskiyou S side of Mount Shasta 3048 Comment
  CAS-BOT-BC219274  Ribes nevadense A. A. Heller 1905-6-5 7967 Siskiyou Near Shasta Springs Comment
  UC726985  Ribes nevadense A. A. Heller 1920-8-12 13513 Siskiyou 3 1/2 mi from Horse Camp Comment
  OBI14034  Ribes nevadense J. H. Applegarth 1969-6-19 s.n. Siskiyou W of cow Crk, tributary of Beaver crk 1829 Comment
  RSA0023155  Ribes nevadense Chadwick, Mrs. Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  RSA0022720  Ribes nevadense var. glaucescens J. T. Howell 1937-7-26 13528 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  CAS-BOT-BC200010  Ribes roezlii var. cruentum Doris K. Kildale 1929-8-25 9097 Siskiyou Wiskey Lake, trail to Preston Peak 1524 Comment
  SEINET10970387  Ribes roezlii var. roezlii Mary Merello 1993-6-23 Merello 701 Siskiyou Shasta-Trinity National Forest. Along county road A-10 (also named Everitt Memorial Highway) climbing Mt. Shasta. Mixed conifer, sub-alpine vegetation, volcanic soils; Aibes and Arctostaphylos dominant species (mile 10 marker 6650 ft.) 1960 Comment
  JEPS49243  Ribes sanguineum Geo. D. Butler 1909-4-25 671 Siskiyou Quartz Valley Comment
  CDA25583  Ribes sanguineum var. sanguineum T. C. Fuller 1958-6-18 1790 Siskiyou Summit of Siskiyou Mountains along road between Cave Junction & Happy Camp. 0 Comment
  RSA605519  Ribes sanguineum var. sanguineum Louis C. Wheeler 1959-7-19 7584 Siskiyou Salmon and Marble Mountains Region: Black Bear Creek, between Sawyers Bar & Cecilville. 1372 Comment
  UC162062 Image available Ribes velutinum A. A. Heller 1905-6-9 8005 Siskiyou Yreka; ; Yreka, Siskiyou Co. Comment
  CAS-BOT-BC173913  Ribes velutinum Geo. D. Butler 1910-5-21 1374 Siskiyou Klamath River Comment
  CAS-BOT-BC168797  Ribes viscosissimum H. A. Thomas; J. H. Thomas 1954-7-24 4488 Siskiyou Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville, Salmon - Trinity Mts. 1981 Comment
  CAS-BOT-BC168798  Ribes viscosissimum R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-2 160 Siskiyou Wooded slopes near Kidd Cr. 1828 Comment
  RSA0020920  Ribes viscosissimum Frederick W. Oettinger 1969-7-9 934 Siskiyou Northwest of Upper English Lake. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  JEPS1247  Romanzoffia californica Joseph P. Tracy 1939-4-29 16269 Siskiyou Somes Bar 182 Comment
  UC673226  Romanzoffia californica Lincoln Constance, Reed C. Rollins 1942-5-13 2904 Siskiyou Klamath River 4 mi e of Seiad; Klamath-Siskiyou Region, Klamath River 457 Comment
  POM88244  Rosa eglanteria Geo. D. Butler 1910-5-29 1427 Siskiyou Near Yreka. Comment
  HSC19388  Rosa gymnocarpa J. O. Sawyer 1968-9-10 679 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  JEPS105028  Rosa gymnocarpa Dean W. Taylor 1996-7-23 15814 Siskiyou Patterson Creek headwaters (about 6 air miles northwest of Etna); Klamath National Forest 1493 Comment
  UC768888  Rosa gymnocarpa var. serpentina Doris K. Kildale 1929-8-24 8844 Siskiyou Preston Peak 2228 Comment
  CAS-BOT-BC147067  Rosa pisocarpa Alice Eastwood 1912-9-4 2099 Siskiyou Sisson Comment
  UC1034621  Rosa rubiginosa Douglas Barbe 1955-6-27 3 Siskiyou 0.8 mile north in the dredgins near Hjertagers' Mill Callahan; Klamath Mountains 975 Comment
  UCSC000370  Rubus leucodermis I. J. Condit 2009-8-23 s.n. Siskiyou near Sisson Sisson - Castle Lake 1829 Comment
  SEINET10542809  Rubus leucodermis LeRoy E. Detling 1947-6-4 Detling 6108 Siskiyou Slater butte, klamath national forest. T17n,r7e,sec.13. Douglas fir, oak Forest. Humboldt mer. Pseudotsuga tacifolia, quercus chrysolepis, q. Kelloggii, Arbutus menziesii, acer macrophyllum, pinus lambertiana. Mountain slope. Nw Exsposure. Rocky clay-loam. Mod. Dry, partial shade. Occasional 1067 Comment
  HSC58948  Rubus parviflorus Marvin Butler 1971-7-19 156 Siskiyou Near Marv's Meadow, close to the town of Cave Junction. 1464 Comment
  CAS-BOT-BC156598  Rubus ulmifolius A. M. Vollmer; L. Beane 1951-6-2 49 Siskiyou Klamath River Highway, betw. U.S. 99 & Gottville Comment
  HSC27679  Rubus ursinus Carl W. Mize 1972-6-8 37 Siskiyou By Wooley Creek in rocks and sand 335 Comment
  HSC27982  Rubus ursinus Carl W. Mize 1972-9-24 130 Siskiyou Along trail from Camp 3 732 Comment
  HSC99686  Rubus ursinus J. O. Sawyer 1969-6-12 893 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  CAS-BOT-BC6026  Rudbeckia californica var. intermedia L. E. Smith 1913-9-1 557 Siskiyou Mt. Eddy Comment
  UC1483467  Rumex acetosella Maralyn A. Renner 1980-7-24 2040 Siskiyou Lily Pad Lake Klamath National Forest, Seiad Valley Quad. 1767 Comment
  CAS-BOT-BC433695  Rumex obtusifolius H. A. Thomas; J. H. Thomas 1954-7-26 4547 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Mt. View Cabin and S. Fork of Salmon River. 944 Comment
  SEINET516326  Rumex stenophyllus Vernon H. Oswald 1998-9-16 9647 Siskiyou Vista point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi E of Hwy. 97. 1244 Comment
  HSC17612  Rumex triangulivalvis R. C. Wunner 1965-6-22 266 Siskiyou Lava Beds NM, 1 mi. NW of Stronghold 1220 Comment
  UC618782  Sagina saginoides W. Bridge Cooke 1938-7-1 11153 Siskiyou Wagon Camp - upper meadow Mt. Shasta; , Wagon Camp Comment
  HSC65319  Sagittaria cuneata J. P. Smith, Steve Selva 1970-8-8 4547 Siskiyou Juanita Lake Comment
  RSA577798  Sagittaria cuneata L. C. Wheeler 1935-7-20 3669 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  CAS-BOT-BC102816  Salix boothii John Thomas Howell 1939-8-7 15132 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  HSC28670  Salix eastwoodiae Frederick W. Oettinger 1968-8-2 364 Siskiyou Marble Mtn. Wilderness Area, E outlet of Diamond Lake 2073 Comment
  UC1409266  Salix eastwoodiae Frederick W. Oettinger 1968-9-3 689 Siskiyou near Horse's Hole Horse Range Lake basin; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1828 Comment
  UC375222  Salix exigua var. hindsiana Geo. D. Butler 1909-9-20 1082 Siskiyou along creek near Yreka Comment
  SEINET12003262  Salix lasiandra H. P. Bracelin 1931-1 474 Siskiyou N base of Mt.Eddy, 13 km NW of Shasta City, 1.3 km E of Burney Mill 1110 Comment
  CAS-BOT-BC107060  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1455 Comment
  UC482247  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 420 Siskiyou about 16 km nw Shasta City (ne side of mt., edge of stream above Metcalf ranch house); Mount Eddy 1515 Comment
  UC576394  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 833 Siskiyou 8-9 mi. n.w.of Mt. Shasta City (Wagon Creek above Metcalf ranch house); e. side Mt. Eddy 1203 Comment
  POM362801  Salix lasiolepis var. sandbergii Louis C. Wheeler 1934-12-16 3363 Siskiyou Oak Knoll Ranger Station. Klamath River. Siskiyou Mtns. 671 Comment
  CAS-BOT-BC125685  Salix melanopsis H. A. Thomas; J. H. Thomas 1954-7-23 4456 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Along north bank of S. Fork of Salmon River just west of Blind Horse Creek 883 Comment
  POM213972  Salix melanopsis Isabelle C. Kimber 1934-6-9 12 Siskiyou Steelbridge Camp, Sacramento River just above confluence with Ney Creek. 732 Comment
  UC576381  Salix melanopsis Mrs. H. P. Bracelin 1936-9-3 861 Siskiyou 11 mi. n.w. Mt. Shasta City (ca. 2 mi. e. of Burney Mill, beside creek at first bridge, n. base Mt. Eddy); Mt. Eddy 1127 Comment
  RSA201500  Salix sitchensis J. T. Howell 1939-8-5 15080 Siskiyou Spirit Lake, Marble Mtns 1829 Comment
  UC1173611  Salix sitchensis Joseph P. Tracy 1935-8-1 14399 Siskiyou borders of Rock Lake (on ridge between Salmon and New Rivers, at extreme head of W. Fork Knownothing Creek); W. Fork Knownothing Creek, Rock Lake 1889 Comment
  HSC27227  Salsola tragus J. P. Smith, J. O. Sawyer 1971-9-18 4800 Siskiyou Hwy. 3, between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  CAS-BOT-BC220738  Salvia W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Comment
  HSC22460  Sambucus racemosa var. racemosa J. O. Sawyer 1969-7-18 1371 Siskiyou E of Waterdog Lake 2012 Comment
  RSA237666  Sanicula graveolens Frederick W. Oettinger 1969-7-9 941 Siskiyou NW of upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1784 Comment
  UC909335  Sanicula tuberosa Ira L. Wiggins 1950-5-28 12381 Siskiyou just above Grouse Lake (headwaters of Grouse Creek); headwaters of Grouse Creek 1737 Comment
  UC991120  Saponaria officinalis J. M. Tucker 1950-7-24 1947 Siskiyou lot beside Highway 99 on the outskirts Mount Shasta town; town of Mount Shasta Comment
  SEINET10871268  Saxifraga bryophora Mary Susan Taylor 1980-7-8 Taylor 3095 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
  JEPS16187  Saxifraga californica Rimo Bacigalupi, and Arthur Holmgren 1950-4-24 3135 Siskiyou opposite town Dunsmuir (directly opposite railroad shops, along Sacramento River); Sacramento River Comment
  POM92222  Saxifraga californica Geo. D. Butler 1909-4-25 583 Siskiyou Quartz Valley. Comment
  JEPS25636  Saxifraga ferruginea Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7275 Siskiyou Poker Flat 1536 Comment
  POM215856  Saxifraga ferruginea Louis C. Wheeler 1934-8-15 3147 Siskiyou Johnson s Dairy. (Mt. Diablo Mer.) 1707 Comment
  RSA760542  Saxifraga ferruginea R. F. Thorne, Frederick W. Oettinger 1969-8-4 63366 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  JEPS13972 Image available Saxifraga fragarioides C. G. Pringle 1881-8-14 Siskiyou cliffs of Castle Lake; Mountains about headwaters of the Sacramento River; Sacramento River 1828 Comment
  RSA120760  Saxifraga nidifica var. nidifica S. S. Tillett 1956-7-9 646 Siskiyou Scott Mtn, Siskiyou-Trinity County line, 8 miles SE of Callahan. 1921 Comment
  RSA238323  Saxifraga occidentalis var. rufidula Frederick W. Oettinger 1969-7-16 651 Siskiyou Base of precipice S of Abbotts Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1860 Comment
  POM298393  Saxifraga tolmiei Lester Rowntree 1939-7-31 s.n. Siskiyou Caribou Lake. Comment
  UC618602  Saxifraga tolmiei W. Bridge Cooke 1938-8-22 11556 Siskiyou w slope of Shastina (Mount Shasta); , Shastina 2895 Comment
  UC166561  Saxifragopsis fragarioides Geo. D. Butler 1909-7-15 897 Siskiyou Highland Mine Comment
  UCD126473  Schedonorus pratensis Geo. D. Butler 1909-6-28 851 Siskiyou Almy Creek, near Yreka. Comment
  HSC39087  Scirpus congdonii D. H. Norris May 1970 12274 Siskiyou Haypress Meadows, Marble Mtn. Wilderness Area Comment
  HSC30683  Scirpus congdonii Frederick W. Oettinger, R. F. Thorne 1969-8-8 1290 Siskiyou Marble Mtn. Wilderness Area, Sundew Bog due E of English Lake outlet 1829 Comment
  RSA238936  Scirpus congdonii Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1271 Siskiyou Lake Shore SE side English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  SEINET11754611  Scirpus congdonii J. P. Tracy 1950-1 19203 Siskiyou Flint Valley, ca 5 mi SE of Elk Valley 1433 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
  UC1265450  Scirpus microcarpus Frederick W. Oettinger 1969-7-31 1121 Siskiyou on inlet stream Upper English Lake (High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness Area, Salmon Mountains, Western Siskiyou County); Marble Mountain Wilderness Area, Salmon Mountains 1767 Comment
  HSC68114  Scleranthus annuus J. P. Smith 1973-5-5 6525 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC5855  Scorzonella pratensis Edward Lee Greene 1876-6-23 883 Siskiyou Yreka Comment
  UC163834  Scutellaria antirrhinoides Geo. D. Butler 1908-8-3 179 Siskiyou Log Lake, Shackleford Creek Shackleford Creek; Log Lake, Shackleford Creek Comment
  RSA14093  Scutellaria antirrhinoides Elmer I. Applegate 1907-09 3306 Siskiyou Thrall, near Klamath River, Shasta Valley. 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
  RSA120941  Scutellaria nana Milo S. Baker 1957-6-15 13105 Siskiyou Just south of Weed. Comment
  CAS-BOT-BC59187  Sedum lanceolatum John Thomas Howell 1939-8-4 15050 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  UC198693  Sedum lanceolatum Annie M. Alexander and Louise Kellogg 1911-8-14 323 Siskiyou Mt. Eddy 2789 Comment
  CAS-BOT-BC61451  Sedum lanceolatum Miss D. Tebbe 1929-6-7 130 Siskiyou Crater Lake, Mount Eddy Comment
  HSC90586  Sedum lanceolatum var. lanceolatum Jennifer Whipple 1977-8-5 2186 Siskiyou Slopes near Little Crater Lake 2195 Comment
  UC1045308  Sedum obtusatum subsp. boreale W. B. Cooke 1940-8-22 15459 Siskiyou banks Mud Creek Canyon; Mount Shasta, banks Mud Creek Canyon 1981 Comment
  UC165976  Sedum obtusatum subsp. boreale Geo. D. Butler 1908-8-9 139 Siskiyou summit above Cold Spring Woolly Creek; summit above Cold Spring Woolly Creek Comment
  UC637043  Sedum obtusatum subsp. boreale Edward Lee 1934-8-14 1105 Siskiyou Little Grayback Little Grayback (rocky n-facing slope at summit, Siskiyou-Del Norte County Line) 1868 Comment
  UC831036  Sedum obtusatum subsp. boreale W. B. Cooke 1942-7-2 16366 Siskiyou near base Mud Creek Canyon; Mount Shasta, near base Mud Creek Canyon 1676 Comment
  RSA0083651  Sedum oregonense Clare B. Hardham 1961-7-1 8132 Siskiyou Siskiyou Mts. 1829 Comment
  CDA25380  Sedum spathulifolium D. L. Janssen, F. D. Horn 1978-5-17 Siskiyou Old Klamath River Road, approximately 10 km east of Horse Creek. 0 Comment
  SEINET8552455  Sedum spathulifolium A. A. Heller 1905-6-1 7932 Siskiyou Between Dunsmuir and Upper Soda Spring. Comment
  HSC64818  Sedum spathulifolium var. spathulifolium J. P. Smith 1976-5-5 8688 Siskiyou Road between Sawyers Bar and Somes Bar 488 Comment
  JEPS77507  Sedum stenopetalum L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-7-18 4875 Siskiyou 7 air mi wsw of town Mt. Hebron (meadow 2 mi e of Bull Meadow); e of Bull Meadow, wsw of town of Mt. Hebron 1645 Comment
  CAS-BOT-BC59181  Sedum stenopetalum subsp. stenopetalum Dorothy Parker 1950-8-3 484 Siskiyou Little Mill Creek, Mount Bolivar 1828 Comment
  RSA603123  Sedum stenopetalum subsp. stenopetalum L. C. Wheeler 1934-8-14 3142 Siskiyou E end White Mt.; Siskiyou Mts. (Mt. Diablo Mer.) 1829 Comment
  CHSC90388  Selaginella wallacei Martin J. Lenz 2004-12-17 1085 Siskiyou Road cutbank near small tributary of Tompkins Cr., approx. 7.1 air mi. SW of mouth of Scott River. UTM: 10 489596 E 4616333 N. 957 Comment
  HSC68064  Senecio aronicoides J. P. Smith 1976-5-21 8769 Siskiyou Klamath National Forest, FS Rd. 40N08, 6.9 mi. from its junction with Hwy. 3 1524 Comment
  CAS-BOT-BC363425  Senecio aronicoides Alice Eastwood 1923-5-22 11888 Siskiyou Sisson Comment
  RSA0012698  Senecio aronicoides Jerry A. Powell 1974-6-16 1167 Siskiyou Ash Creek Ranger Station. Comment
  CHSC88780  Senecio integerrimus var. exaltatus Jenny Marr 1993-7-1 195 Siskiyou Steamboat Mtn. Shasta Valley Wildlife Area, +/- 20 air miles S of Oregon border and 8 miles E of Yreka. Meadow. 701 Comment
  UC1234602  Senecio integerrimus var. exaltatus Peter H. Raven 1962-5-30 17899 Siskiyou 12.3 mi s MacDoel (U.S. Highway 97) Comment
  JEPS37650  Senecio integerrimus var. major W. L. Jepson 1907-7-5 2839 Siskiyou Marble Mt. Comment
  SEINET10809464 Image available Senecio integerrimus var. major Harley P. Chandler Chandler 1606 Siskiyou Ridges and meadows near Marble mountain. 1981 Comment
  SEINET10918409  Shepherdia canadensis Karen M. Meyer, Andrew Townesmith 2007-7-31 Meyer 175 Siskiyou Shasta-Trinity National Forest. 5.4 mi. on NF Rd. 17, off US Hwy. 97. 1294 Comment
  HSC29396  Sibbaldia procumbens Frederick W. Oettinger 1968-8-23 607 Siskiyou Salmon Mountains: the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness area; near Diamond Lake 2073 Comment
  CAS-BOT-BC213141  Sidalcea Doris K. Kildale 1928-7-25 5878 Siskiyou Klamath River near Hamburg 457 Comment
  CAS-BOT-BC213142  Sidalcea Margaret M. Hanna 1956-6-2 s.n. Siskiyou 6 mi. E of Redding, Hiway 299 Comment
  CAS-BOT-BC205785  Sidalcea oregana David D. Keck 1938-8-6 4815 Siskiyou At Del NOrte Co. line, Poker Flat, summit of Siskiyou Mts., 4 mi. S. of Oregon line, on road from Waldo to Happy Camp 1555 Comment
  UC454908  Sidalcea oregana subsp. oregana I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Shasta Retreat (dry bank along R.R.) 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
  UC1282025  Silene campanulata subsp. glandulosa Louise Kellogg Aug 8 1953-Aug 9 1953 125 Siskiyou near Scott Mountain Public Campground (Blue Point, Scott Mountains); Klamath National Forest, Blue Point, Scott Mt. Campground 1630 Comment
  CAS-BOT-BC181199  Silene campanulata subsp. glandulosa R. C. Barneby 1954-5-16 11508 Siskiyou Klamath R. canyon 10 1/2 mi. below Klamath River P.O. 472 Comment
  HSC62001  Silene campanulata subsp. greenei Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  UC3735338  Silene dichotoma Geo. D. Butler 1909-8-17 961 Siskiyou near Yreka; near Yreka 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
  JEPS26588  Silene grayi Peter Kamb 1949-8-25 1492 Siskiyou above Horse Camp; sw slope of Mt. Shasta above Horse Camp 2895 Comment
  SJSU2571  Silene grayi H. L. Buckalew 1962-7-12 Siskiyou near Poker Flat c. 4 mi W of junction of Indian Cr with W Branch of Indian Cr, Siskiyou Mts 1143 Comment
  CAS-BOT-BC389419  Silene lemmonii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1889 Comment
  CAS-BOT-BC389428  Silene lemmonii Wm. Bridge Cooke 1940-6-7 15104 Siskiyou Along the Pacific Highway near Black Butte Comment
  CAS-BOT-BC389436  Silene lemmonii J. H. Thomas 1954-5-14 4178 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, Southwestern Siskiyou County 1219 Comment
  CAS-BOT-BC389427  Silene lemmonii Wm. Bridge Cooke 1941-6-7 16014 Siskiyou East base of Mt. Eddy Comment
  HSC4220  Silene lemmonii W. L. Jepson Jul 1894 Siskiyou Sisson (now the town called Mt. Shasta) Comment
  HSC6907  Sisymbrium altissimum R. C. Wunner 1965-6-18 210 Siskiyou Indian Well Campground, Lava Beds National Monument 1433 Comment
  RSA120903  Sisymbrium altissimum Milo S. Baker 1957-6-15 13110 Siskiyou Roadcut just S of Weed. Comment
  CAS-BOT-BC5742  Sisyrinchium greenei H. E. Brown 1897-6-11 351 Siskiyou North side of Mt. Shasta 2743 Comment
  UC164450  Smilacina racemosa Geo. D. Butler 1910-6-19 1587 Siskiyou Goosenest foothills 1524 Comment
  UC375212  Smilacina racemosa Geo. D. Butler 1908-8-7 96 Siskiyou West Fork Wooley Creek; head Comment
  JEPS24786  Smilax californica Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6794 Siskiyou along river below and sw Mt. Shasta town (Sisson) (between debouchements of Wagon and Scott Camp Creeks); South Fork of Sacramento River 944 Comment
  RSA298136  Solidago canadensis subsp. elongata J. P. Smith, J. O. Sawyer 1971-9-17 4781 Siskiyou At Little Duck Lake Comment
  HSC24685  Solidago elongata J. O. Sawyer 1969-8-4 2015 Siskiyou Behind S Sugar Lake 2088 Comment
  JEPS80578  Solidago elongata Gilbert Muth 1965-8-3 146 Siskiyou Marble Valley , Marble Valley (Marble Mt. Wilderness Area) 1792 Comment
  UC163885  Solidago elongata Geo. D. Butler 1910-7-20 1732 Siskiyou Goosenest foothills 1524 Comment
  CAS-BOT-BC339855  Solidago multiradiata C. F. Baker 1903-8-18 3843 Siskiyou Mt. Eddy Comment
  OBI55485  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
  OBI55540  Solidago velutina subsp. californica David J. Keil, Kathleen Keil 1992-7-24 23566 Siskiyou E of McCloud along hwy 89, 22.6 mi W of Shasta County line Comment
  RSA715771  Sonchus asper subsp. asper L. Ahart, John Dittes 2005-6-10 12117 Siskiyou At the pump house along the Shasta River, about 1.9 miles (air) S of Hwy 99/97 Cutoff, about 6 miles (air) ESE of Granada. 777 Comment
  CAS-BOT-BC157323  Sorbus californica Ira L. Wiggins 1955-7-27 13554 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC27340  Sorbus californica J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5668 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  CAS-BOT-BC158931  Sorbus scopulina L. E. Smith 1912-10-1 s.n. Siskiyou Hilt Comment
  CAS-BOT-BC158932  Sorbus scopulina W. R. Dudley 1899-8-22 s.n. Siskiyou Craggy Peak Comment
  HSC29471  Sorbus scopulina Frederick W. Oettinger 1969-8-25 1556 Siskiyou High Lake Basins in the vicinity of English Peak, Marble Mtn. Wilderness Area; Little N Fork stream along new trail from end of logging road to Devils Canyon trail 1220 Comment
  UCR18933  Sorbus scopulina John C. Roos 1948-9-1 3984 Siskiyou 10 mi. SW of Etna Comment
  RSA237454  Sorbus scopulina var. cascadensis Frederick W. Oettinger 1969-9-2 1607 Siskiyou N end of English Peak. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1860 Comment
  UC163746  Sorbus scopulina var. scopulina Geo. D. Butler 1910-7-8 1681 Siskiyou Shackleford Creek Comment
  UC1409333  Sorbus sitchensis var. sitchensis Frederick W. Oettinger and R. F. Thorne 1969-8-7 1276 Siskiyou se end English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1798 Comment
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Aug 26 2008
  CHSC106101  Sparganium emersum subsp. emersum Lowell Ahart; John Dittes 2010-7-30 1936 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  CAS-BOT-BC390713  Spergularia rubra Louis C. Wheeler 1934-9-2 3239 Siskiyou Miller Grade, Siskiyou Mts. 1828 Comment
  RSA0097344  Spergularia rubra Frederick W. Oettinger 1969-8-31 1569 Siskiyou Weed patch near English Lake; Salmon Mts; The high lake basins in the vicinity of English Peak, Marble Mt. Wilderness Area. 1753 Comment
  HSC61147  Sphenosciadium capitellatum Al Hobart 1967-10-26 Siskiyou El Capitan Comment
  UC164074  Spiraea densiflora Geo. D. Butler 1910-7-9 1710 Siskiyou Wooley Creek 1676 Comment
  UC722698  Spiraea densiflora C. L. Hitchcock and J. S. Martin 1939-7-7 5272 a Siskiyou ca 12 mi s Takilma, Oregon (Sanger Peak Trail, 1 mi s of Camp Chicago); Siskiyou Mts. 1432 Comment
  CAS-BOT-BC149694  Spiraea douglasii Alice Eastwood 1912-7-15 1112 Siskiyou [Mc Cloud] McCloud Comment
  UC164063  Spiraea douglasii Geo. D. Butler 1910-7-9 1708 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC152560  Spiraea splendens Alice Eastwood 1912-8-30 2039 Siskiyou Mount Eddy Comment
  UC1408913  Spiranthes romanzoffiana Frederick W. Oettinger 1968-8-12 497 Siskiyou Tobacco Lake Trail Salmon Mountains, Marble Mountain Wilderness Area (high lake basins in vicinity of English Peak, w Siskiyou Co.) 1889 Comment
  UC143404  Spiranthes romanzoffiana Dr. E. B. Copeland 1903-8-17 3927 Siskiyou Dietz' Spur 1158 Comment
  SEINET9345824  Stachys ajugoides Unknown 2002-7-12 1902 Siskiyou Klamath National Forest Comment
  UC1483439  Stachys ajugoides var. rigida John Palmer 1980-8-15 962 Siskiyou ne Seiad Low Gap (on spur of F.S. Rd. 46N50); Klamath National Forest, Seiad Valley Quad. 1097 Comment
  UC1483507  Stachys ajugoides var. rigida Maralyn A. Renner 1980-8-31 2670 Siskiyou at trailhead to Twin Valley (Poker Flat); Klamath National Forest, Preston Peak Quad. 1524 Comment
  RSA447393  Stachys rigida subsp. rivularis M. B. Dunkle 1945-8-2 9273 Siskiyou Paradise Lake, Klamath National Forest, Marble Mts. Comment
  HSC77793  Stellaria crispa L. P. Janeway 1983-9-11 654 Siskiyou Poker Flat 1524 Comment
  CHSC99976  Stenanthium occidentale L. P. Janeway 2008-7-25 9493 Siskiyou Klamath Ranges. Siskiyou Mountains; at Horsetail Falls, along Road 48N20, along upper eastern fork of East Fork Seiad Creek. 1237 Comment
  CAS-BOT-BC516470  Stenanthium occidentale Louis C. Wheeler 1934-8-17 3181 Siskiyou North side White Mt., Siskiyou Mts. 1828 Comment
  HSC4763  Stephanomeria lactucina William J. Ferlatte 1966-8-5 327 Siskiyou N side of Caribou Mtn. 1982 Comment
  HSC6234  Stephanomeria virgata R. C. Wunner 1965-9-8 511 Siskiyou California Lava Beds National Monument; 0.1 mi. on Rd. to Caldwell Ice Cave 1372 Comment
  HSC43031  Stipa lemmonii J. O. Sawyer, Ken Stillman 1976-7-2 2804 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  SEINET10603910  Stipa nelsonii Lawrence P. Janeway 1983-8-26 Janeway 606 Siskiyou Preston Peak quad (15'). At Poker Flat, a meadow in a fir forest. Mostly open, gravelly, dry ground on upper side of road on the North side of the meadow. 1524 Comment
  HSC92556  Stipa occidentalis var. occidentalis Jennifer Whipple 1976-7-14 1476 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  CAS-BOT-BC87858  Streptanthus tortuosus Marion Ownbey; Fred G. Meyer 1940-7-3 2162 Siskiyou 5 miles northwest of McCloud. Comment
  POM203465  Streptanthus tortuosus Alice Eastwood, J. T. Howell 1934-4-20 1773 Siskiyou Junction of Klamath and Shasta Rivers. Comment
  UC162647  Streptanthus tortuosus var. orbiculatus Harley P. Chandler June 1901 1636 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  UC70401  Streptanthus tortuosus var. orbiculatus Milo S. Baker 1899-7-31 Siskiyou above Warren and Anderson's Mill; Mt. Shasta, Ash Creek Comment
  HSC69576  Streptopus amplexifolius Maralyn A. Renner 1980-8-6 2258 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  HSC61982  Streptopus amplexifolius Al Hobart 25 Sep [year missing] Siskiyou Preston Peak 1677 Comment
  RSA577888  Stuckenia pectinata L. C. Wheeler 1935-6-23 3592 Siskiyou Shasta River 2 mi. NW Montague. 762 Comment
  HSC620  Suksdorfia ranunculifolia William J. Ferlatte 1966-7-7 200 Siskiyou Caribou Basin 1982 Comment
  UC1190180  Suksdorfia ranunculifolia Ira L. Wiggins 1955-7-27 13546 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC46227  Swertia albicaulis var. nitida Jennifer Whipple 1978-6-5 2338 Siskiyou Weston Gulch in Scott Valley 854 Comment
  CAS-BOT-BC269614  Symphoricarpos albus var. laevigatus D. H. Norris 1970-5-23 12250 Siskiyou Along Klamath River at Ishi Pishi Bridge near Somes Bar Comment
  UC163750  Symphoricarpos albus var. laevigatus Geo. D. Butler 1910-8-1 1808 Siskiyou Yreka Creek Comment
  HSC4003  Symphoricarpos mollis C. B. Wolf 1927-8-27 1113 Siskiyou Klamath River at Happy Camp. Comment
  HSC30275  Symphyotrichum bracteolatum William J. Ferlatte 1971-9-18 1372 Siskiyou Big Flat near public campground 1524 Comment
  CAS-BOT-BC97888  Symphyotrichum eatonii Alice Eastwood 1912-7-22 1305 Siskiyou Sisson Comment
  UC1192077  Symphyotrichum frondosum Verne Grant and Irving Schneider 1947-8-25 8281 Siskiyou west side of Tule Lake Comment
  UC1188088  Symphyotrichum spathulatum Philip A. Munz 1960-8-22 24173 Siskiyou Panther Meadows Mt. Shasta 2286 Comment
  UC726149  Symphyotrichum spathulatum A. A. Heller 1940-7-24 15760 Siskiyou Castle Lake, along the outlet of Castle Lake Comment
  CAS-BOT-BC98428  Symphyotrichum spathulatum W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Comment
  CDA17129  Taeniatherum caput-medusae G. F. Hrusa 2001-6-5 15843 Siskiyou Shasta Valley; Northbound exit from I-5 at Louie Rd. 914 Comment
  UC157082  Taeniatherum caput-medusae Dr. E. B. Copeland 1903-7-5 3493 Siskiyou Klamathon, Round Mountain Round Mountain; Pacific Coast, Klamathon, Round Mountain Comment
  CHSC32898  Taraxia tanacetifolia J. P. Smith; Steve Selva 1970-8-9 4586 Siskiyou Roadside by Grass Lake. Comment
  UC224017  Taxus brevifolia H. E. Brown Jun 1 1897-Jun 10 1897 323 Siskiyou near Sisson 1083 Comment
  NY17617  Taxus brevifolia W. R. Dudley 1901-8-20 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
  HSC18992  Tellima grandiflora J. O. Sawyer 1969-7-18 1362 Siskiyou E of Waterdog Lake 2012 Comment
  UC1037315  Thalictrum fendleri Leo Whitney 1934-6-24 1852 Siskiyou near Tennant; Antelope Creek 1463 Comment
  RSA184720  Thalictrum polycarpum Gilbert Muth 1966-7-17 408 Siskiyou Trail to lookout, Marble Mtns, Siskiyou county. Comment
  RSA530128  Thelypodium brachycarpum D. W. Taylor 1987-8-9 9289 Siskiyou Lower Klamath Nat l Wildlife Refuge, alon Hwy 161 (Oregon border) 8.3 miles W from Hwy 139. 1250 Comment
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Jun 7 2008
  SEINET10735477 Image available Thelypodium brachycarpum Harvey M. Hall, Ernest B. Babcock Hall 4092 Siskiyou Shasta Valley 914 Comment
  RSA17457  Thelypodium flexuosum Elmer I. Applegate 1935-6-2 9286 a Siskiyou Frenner s ranch, near north boundary of Lava Beds National Monument. Comment
  HSC24813  Thelypteris nevadensis J. O. Sawyer 1969-7-23 1441 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  JEPS93873  Thlaspi arvense Vernon H. Oswald and Lowell Ahart 1998-7-21 9322 Siskiyou Highway 97 between Weed and Macdoel (at the w end of Grass Lake); Grass Lake, Highway 97 1524 Comment
  SEINET10448380  Thlaspi montanum Mary Susan Taylor 1980-7-8 Taylor 3097 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
  JEPS82672  Thlaspi montanum var. montanum Wayne Roderick 1984-6-7 Siskiyou sw Stewart Springs (Cabin Meadow); Cabin Meadow (sw of Stewart Springs) 1935 Comment
  RSA237924  Tofieldia glutinosa subsp. occidentalis Frederick W. Oettinger 1967-8-21 311 Siskiyou Northwest of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1878 Comment
  JEPS83830  Tofieldia occidentalis subsp. occidentalis Wayne Roderick Jul 1976 Siskiyou along trail to Lily Pad Lake Siskiyou Mts., vicinity Cook and Green Pass Comment
  SJSU6508  Tolmiea diplomenziesii R. W. Trivelpiece 1972-6-15 119 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp 1280 Comment
  HSC72671  Tonella tenella J. P. Smith 1976-5-5 8697 Siskiyou Road between Forks of Salmon and Somes Bar 366 Comment
  SD264755  Torilis arvensis Tracey G. Call, Viola Call 1964-6-22 2277 Siskiyou Near Klamath river Ao mile east of mouth of Beaver Creek. 487 Comment
  CDA7718  Tragopogon dubius T. C. Fuller 1965-6-1 13590 Siskiyou West side of Highway 99 to Grenada, 4 miles south of Yreka. 0 Comment
  UC133248  Tragopogon porrifolius Copeland 1903-8-14 3886 Siskiyou Sisson Comment
  HSC42898  Tragopogon porrifolius Ken Stillman 1976-8-15 409 Siskiyou Clearcut at junction of Specimen Creek and Little N Fork of the Salmon River 732 Comment
  CAS-BOT-BC519561  Triantha occidentalis subsp. occidentalis Alice Eastwood 1912-7-22 1313 Siskiyou Sisson Comment
  CAS-BOT-BC519562  Triantha occidentalis subsp. occidentalis Gilbert Muth 1966-8-3 499 Siskiyou Marble Mt.: Marble Valley 1792 Comment
  RSA460865  Trientalis latifolia Edwin Kline 1920-6-24 14844 Siskiyou Siskiyou Mts. Comment
  RSA237929  Trifolium cyathiferum Frederick W. Oettinger 1969-8-1 1127 Siskiyou Above wiregrass meadow, English Lake basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1707 Comment
  HSC68550  Trifolium eriocephalum Maralyn A. Renner 1980-6-22 893 Siskiyou Slopes N of Little Shasta River 1372 Comment
  CHSC71483  Trifolium eriocephalum subsp. eriocephalum Vernon H. Oswald; Lowell Ahart 1998-7-21 9340 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
  UCR110583  Trifolium howellii L. C. Wheeler 1963-8-27 8276 Siskiyou Siskiyou Mtns., Clear Creek, 1 mi. below West Fork. 671 Comment
  POM28044  Trifolium howellii Geo D. Butler 1910-7-9 1689 Siskiyou Shackleford Creek. 1220 Comment
  UCD111253  Trifolium longipes A. C. Hoofer 1926-8-27 s.n. Siskiyou Siskiyou Mtn., Preston Peak Dist. Comment
  HSC92981  Trifolium longipes subsp. shastense Jennifer Whipple 1976-6-17 1028 Siskiyou Near Durney Lake 2073 Comment
  POM28224  Trifolium microcephalum Geo. D. Butler 1641 Siskiyou Goosemest Foothills 1220 Comment
  POM222616  Trifolium repens H. P. Bracelin 1931-6-20 433 Siskiyou Metcalf Ranch, Mt. Eddy. Comment
  CAS-BOT-BC451782  Triglochin maritima Geo. D. Butler 1910-8-21 1846 Siskiyou Shasta Valley Comment
  JEPS47264  Trillium albidum Geo. D. Butler 1909-4-14 669 Siskiyou Humbug Comment
  HSC99848  Trillium ovatum G. L. Clifton 1979-7-1 6184 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  CDA39372  Trillium ovatum T. C. Fuller 1958-6-18 1789 Siskiyou Summit of Siskiyou Mountains along road between Cave Junction & Happy Camp. 0 Comment
  HSC76925  Trillium ovatum subsp. oettingeri William J. Ferlatte 1983-6-29 2102 Siskiyou Near confluence of Cow Creek and McCloud River, E of Rd. 39N93 1220 Comment
  UC1713746  Trillium ovatum subsp. oettingeri Maralyn A. Renner 1980-7-16 1782 Siskiyou Klamath Nat'l forest, Sawyers Bar Quad., Hancock Lake inlet 1950 Comment
  RSA184774  Trisetum spicatum Gilbert Muth 1966-8-3 491 Siskiyou Marble Valley Meadow, Marble Mtns. 1793 Comment
  RSA184781  Trisetum spicatum Gilbert Muth 1966-7-31 469 Siskiyou N side of Black Mountain. Marble Mtns. 1982 Comment
  CAS-BOT-BC133488  Triteleia crocea L. E. Smith 1914-5-21 702 Siskiyou Yreka Comment
  CAS-BOT-BC133495  Triteleia crocea Clarence R. Quick 1959-6-19 59 -02 Siskiyou 3 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  CHSC2072  Triteleia crocea V. Holt 1943-8-14 Siskiyou Marble Mountains. 1828 Comment
  HSC49899  Triteleia crocea Maralyn O'Meara 1974-5-25 434 Siskiyou On Rd. 8, 2.4 mi. W of junction with Hwy. 3 1006 Comment
  UC15048  Triteleia crocea Harley P. Chandler June, 1901 1695 Siskiyou Shackleford Canyon North Coast Ranges (near Marble Mountain) 2133 Comment
  UC705592  Triteleia crocea Marion Ownbey and D. H. Brown 1941-6-22 2419 Siskiyou just s Craggy Mountain (nw of Yreka) Comment
  SEINET8398509  Triteleia ixioides Frank Callahan 1990-7-4 Siskiyou south slope of Mt. Shasta, growing in dry fringes of Wagon Camp Meadows. 1762 Comment
  CHSC31157  Triteleia ixioides subsp. anilina M. S. Taylor 1980-7-8 3110 Siskiyou On trail, e side of Castle Lake to Little Castle Lake. 1767 Comment
  CAS-BOT-BC524319  Triteleia ixioides subsp. anilina A. A. Heller 1916-6-20 12413 Siskiyou Openings in the forest, Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC32590  Tsuga mertensiana Steven Lagos 1974-5-26 85 Siskiyou Duck Lake Creek drainage, Bulk Collection 56 1463 Comment
  CAS-BOT-BC80260  Tsuga mertensiana subsp. grandicona Gilbert Muth 1966-7-29 131 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CAS-BOT-BC74096  Turritis glabra John Thomas Howell 1939-8-6 15088 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  CAS-BOT-BC404214  Urtica dioica subsp. holosericea Alice Eastwood 1912-7-18 1217 Siskiyou Sisson Comment
  HSC65289  Vaccinium cespitosum Rich White 1978-7-3 219 Siskiyou Lake E of Sawtooth Trail, N of Dillon Trail 1502 Comment
  HSC67683  Vaccinium cespitosum John Palmer 1980-7-24 624 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC91292  Vaccinium cespitosum Jennifer Whipple 1976-6-30 1213 Siskiyou Wagon Creek drainage near Wagon Creek 370 Comment
  JEPS58715  Vaccinium cespitosum Harley P. Chandler Jun 1901 1578 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  HSC19362  Vaccinium membranaceum J. O. Sawyer 1968-7-2 376 Siskiyou Upper drainage of Joe Creek on steep N facing slopes. 1677 Comment
  HSC69426  Vaccinium parvifolium Edward Palmer 1980-7-23 563 Siskiyou Past Elbow Springs at end of F.S. road 15N19 1220 Comment
  CAS-BOT-BC199486  Vaccinium scoparium Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Margin of Cedar Lake, Trinity Mts. 1828 Comment
  HSC19416  Vaccinium scoparium J. O. Sawyer 1968-7-22 547 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC19521  Vaccinium scoparium J. O. Sawyer 1969-7-11 1536 Siskiyou S Sugar Creek 1829 Comment
  HSC25052  Vaccinium scoparium J. O. Sawyer 1969-8-1 1595 Siskiyou Above Horseshoe Lake 1921 Comment
  UC2061649  Vaccinium scoparium R. F. Thorne, Frederick W. Oettinger 1969-8-4 63373 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Comment
  RSA238869  Vaccinium scoparium Frederick W. Oettinger, J. L. Morrison 1967-8-17 279 Siskiyou 0.1 mile SSW of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  HSC86447  Vaccinium uliginosum D. K. Imper Jul 1987 Siskiyou Marble Mtn. Wilderness Area, Haypress Meadow, 8 mi. E of Somes Bar 1372 Comment
  JEPS80556  Valeriana sitchensis subsp. sitchensis Gilbert Muth 1965-8-6 190 Siskiyou backside of Black Mountain, Marble Mountain Wilderness Area Marble Mountain Wilderness Area; Black Mountain, Marble Mountain Wilderness Area 2042 Comment
  HSC27688  Vancouveria planipetala Carl W. Mize 1972-6-10 47 Siskiyou 100 yds. above Steinacher Creek 305 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
  HSC36208  Veratrum californicum var. californicum John Rehling 1975-8-11 104 Siskiyou S end of Little Duck Lake Comment
  CAS-BOT-BC135747  Veratrum insolitum Ira L. Wiggins 1955-7-24 13484 Siskiyou Ridge between upper reaches of China Creek and Blind Horse Creek 1280 Comment
  CAS-BOT-BC135748  Veratrum insolitum Wayne Roderick 1967-7-24 s.n. Siskiyou Lily Pad Lake, n. of Seiad Valley - Siskiyou Mts. 1676 Comment
  UCD14452  Veratrum viride John M. Tucker 1972-8-8 4243 Siskiyou Marble Mountains. 1889 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
  JEPS74569  Veronica americana W. J. Ferlatte 1966-6-23 132 Siskiyou Trinity Alps, Yellow Rose Mine Yellow Rose Mine; Trinity Alps, Yellow Rose Mine 1981 Comment
  JEPS84019  Veronica copelandii L. R. Heckard with J. Hickman et al. 1986-7-17 6459 Siskiyou 5 mi n of the town of Seiad Valley (ridge e of Kangaroo Peak, s of Lily Pad Lake) 1940 Comment
  RSA715953  Veronica peregrina subsp. xalapensis L. Ahart, John Dittes 2005-6-10 12059 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Hwy 99/97 Cutoff, about 6 miles (air) ESE of Grenada. 777 Comment
  UC1026906  Veronica peregrina subsp. xalapensis W. Bridge Cooke 1940-6-6 15081 A Siskiyou near the outlet of Castle Lake 1676 Comment
  CDA6419  Veronica persica T. C. Fuller 1962-6-11 8964 Siskiyou El Rancho Motel, Yreka. 0 Comment
  RSA167160  Veronica triphyllos Iris Coonrod 1963-4-1 s.n. Siskiyou Coonrod Ranch, Montague. 915 Comment
  CAS-BOT-BC238173  Veronica wormskjoldii Alice Eastwood 1921-7-28 10917 Siskiyou Medicine Lake Comment
  HSC19337  Veronica wormskjoldii J. O. Sawyer 1969-7-9 1225 Siskiyou Along trail to Sugar Lake. 1768 Comment
  CDA17135  Vicia americana G. F. Hrusa 2001-6-6 15849 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
  JEPS66167  Vicia americana var. americana George D. Butler 1909-4-24 604 Siskiyou Greenhorn Mt. Comment
  SFV1976  Vicia americana var. americana D. Myrick 1961-6-21 301