Search Results — 2000 specimen records retrieved (1357 records with coordinates)
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC4980  Abies amabilis J. O. Sawyer 1968-7-22 525 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  UC1001949  Abies concolor Mrs. B. M. Berry 1954-10-7 4 Siskiyou Sugar Creek Bridge Salmon Mountains, Sugar Creek Bridge (High Road between French Creek and Scott River, near Callahan) 1828 Comment
  JEPS59141  Abies lasiocarpa var. lasiocarpa J. O. Sawyer 1968-10-7 754 Siskiyou meadow w Little Duck Lake; Aetna Quad 1935 Comment
Read comments
Mar 18 2011
  UCSC001102  Abies magnifica var. shastensis Peter Kamb 1946-8-11 381 Siskiyou Horse camp - S.W. slope of Mt. Shasta 2499 Comment
  HSC4977  Abies procera J. O. Sawyer 1968-9-9 669 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  UC718152  Abies procera Carl B. Wolf 1934-7-5 5969 Siskiyou on road to Horse Creek 2.8 mi from Dry Lake Lookout; Siskiyou Mts. 2133 Comment
  UC1045288  Acer circinatum W. Bridge Cooke 1940-7-12 15309 Siskiyou in the Box Canyon near Mount Shasta City; near the Sacramento River 914 Comment
  UC54490  Acer circinatum H. M. Hall and E. B. Babcock June, 1903 4150 Siskiyou Pole Canyon Sierra Nevada Mountains, Pole Canyon (north-eastern Shasta County) 1463 Comment
  CAS-BOT-BC331016  Acer glabrum var. glabrum Doris K. Kildale 1929-7-20 8671 Siskiyou Raspberry Lake, near east spur Preston Peak 1981 Comment
  CAS-BOT-BC332782  Acer macrophyllum Carl B. Wolf 1927-8-26 1037 Siskiyou On the Klamath River, 4 mi N of Gottville Comment
  CAS-BOT-BC332785  Acer macrophyllum Alice Eastwood 1917-9-2 6654 Siskiyou Shasta Springs Comment
  RSA105402  Acer macrophyllum G. D. Barbe 1955-6-30 62 Siskiyou 1 mile northwest of Forest camp, Etna. Growing along Johnson Creek 945 Comment
  CAS-BOT-BC332783  Acer macrophyllum Carl B. Wolf 1927-8-26 1103 Siskiyou On the Klamath River, 14 mi above Happy Camp Comment
  CAS-BOT-BC30428  Achillea millefolium John Thomas Howell 1937-7-23 13345 Siskiyou South Fork of Salmon River near Big Flat 1524 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
  UC1045301  Achillea millefolium W. Bridge Cooke 1904-7-7 15480 Siskiyou along west rim near upper limits of Hudsonian Zone Mud Creek Canyon; Mount Shasta 2743 Comment
Read comments
Oct 9 2007
  CAS-BOT-BC30426  Achillea millefolium Alice Eastwood 1921-7-25 10839 Siskiyou Bigelowe, McCloud River Comment
  RSA463115  Achillea millefolium var. californica S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  UC637079  Achlys californica Edward Lee 1934-8-13 1085 Siskiyou Happy Camp to Waldo (Oregon) rd., watershed of W. Branch Indian Creek Klamath Nat'l Forest, W. Branch Indian Creek 1463 Comment
  CAS-BOT-BC210717  Achnatherum lemmonii Geo. D. Butler 1909-6-4 810 Siskiyou Near Yreka Comment
  POM211395  Achnatherum lemmonii var. lemmonii L. C. Wheeler 1934-6-11 2682 Siskiyou North Hungry Creek , Siskiyou Mtns. (Mt Diablo Mer) 1311 Comment
  JEPS72939  Achnatherum occidentale subsp. californicum W. L. Jepson 1940-6-28 20054 a Siskiyou McCLoud 975 Comment
  UC1265474  Achnatherum occidentale subsp. californicum Frederick W. Oettinger 1968-8-8 454 a Siskiyou Crapo Meadow near Tom Taylor Cabin (vicinity of English Peak Marble Mountain Wilderness Area); Salmon Mountains, High Lake Basin 2026 Comment
  UCD51050  Achnatherum occidentale subsp. californicum Elizabeth Wilson 1940-7-14 s.n. Siskiyou Shasta Springs. Comment
  UCD55547  Achnatherum occidentale subsp. californicum Beecher Crampton 1956-8-20 3800 Siskiyou Northern city limits of Dunsmuir; driveway of Oak-Lo Motel. 716 Comment
  RSA484124  Achnatherum occidentale subsp. occidentale M. B. Dunkle 1945-1 9363 Siskiyou Klamath National Forest, Marble Mountains. 1982 Comment
  SEINET203570  Achnatherum occidentale subsp. pubescens W. B. Cooke 1938-6-24 11068 A Siskiyou Mount Shasta 1524 Comment
  CAS-BOT-BC218016  Achnatherum thurberianum Elmer I. Applegate 1935-6-8 9437 Siskiyou Bearpaw Cave, Lava Beds National Monument Comment
  POM115239  Achnatherum thurberianum Geo D. Butler, A. S. Hitchcock 1910-5-4 1277 Siskiyou Dry hill, Yreka. Comment
  RSA716055  Achnatherum thurberianum L. Ahart, John Dittes 2005-6-9 12018 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  UC166597  Achyrachaena mollis Geo. D. Butler 1910-5-8 1312 Siskiyou drylands near Yreka Comment
  CHSC75712  Acmispon nevadensis var. nevadensis Vernon H. Oswald; Lowell Ahart 1999-7-5 9812 Siskiyou Gazelle Mtn. on road 41N03 0.6 mi southeast of Gazelle-Callahan Hwy. 1524 Comment
  SD73170  Aconitum columbianum Darley F. Howe 1969-8-30 Siskiyou North fork of Salmon River, Blake's Creek, about 20 miles southwest of Aetna 1829 Comment
  SJSU6270  Aconitum columbianum R. W. Trivelpiece 1971-8-9 64 Siskiyou Kangaroo L on Kangaroo Cr, S of East Fork Scott R between Gazelle & Callahan 1737 Comment
  CAS-BOT-BC391516  Aconitum columbianum subsp. columbianum Alice Eastwood 1912-8-30 2089 Siskiyou Mount Eddy 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
  HSC98375  Aconogonon davisiae J. O. Sawyer 1968-7-22 555 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  CAS-BOT-BC418820  Aconogonon phytolaccifolium Gilbert Muth 1966-7-17 406 Siskiyou Trail to Lookout, Marble Mts. 1859 Comment
  RSA238275  Actaea rubra subsp. arguta Frederick W. Oettinger 1969-8-21 1483 Siskiyou Under thicket at Willow Spring on English Lake Trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  CAS-BOT-BC29322  Adenocaulon bicolor A. A. Heller 1916-8-24 12558 Siskiyou Near Sisson 1074 Comment
  CAS-BOT-BC29325  Adenocaulon bicolor John Thomas Howell 1937-7-21 13186 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC58867  Adenocaulon bicolor Marvin Butler 1971-7-29 234 Siskiyou Near Copper Mountain Mines, close to the town of Cave Junction 1464 Comment
  UC88424  Adenocaulon bicolor Dr. E. B. Copeland 1903-9-5 3925 Siskiyou at foot of mountain Mt. Eddy; Pacific Coast, Mt. Eddy 1188 Comment
  RSA211518  Adenocaulon bicolor William J. Ferlatte 1966-8-18 405 Siskiyou Wooded area 3 miles S of Big Flat. 1585 Comment
  CAS-BOT-BC68961  Adiantum aleuticum Ira L. Wiggins 1955-7-23 13477 Siskiyou Banks of China Creek 1097 Comment
  CAS-BOT-BC69000  Adiantum aleuticum Gordon H. True; John Thomas Howell 1972-6-8 48860 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  POM24645  Adiantum aleuticum E. B. Copeland 1903-9-6 3859 Siskiyou Mount Eddy 1463 Comment
  UC1483405  Adiantum aleuticum Maralyn A. Renner 1980-6-24 1005 Siskiyou tributary stream to East Fork Seiad Creek (where crossed by FS Rd 48N20); Klamath Nat'l Forest, Seiad Valley Quadrangle 1021 Comment
  SEINET3153138  Adiantum aleuticum G. B. Grant 25 Siskiyou Shasta Springs, No. Cent. Cal. Comment
  UCD51466  Aegilops cylindrica T. C. Fuller 1962-6-12 8970 Siskiyou Little Shasta Rd., 1 mile east of Montague. Comment
  HSC63634  Agastache urticifolia J. P. Smith, Steve Selva 1970-8-8 4573 Siskiyou Lava Beds National Monument Comment
  UC883212  Agastache urticifolia Milo S. Baker Siskiyou McCloud River s Mt. Shasta; McCloud River s of Mt. Shasta Comment
  CHSC253  Agoseris aurantiaca V. Holt 1943-8-14 Siskiyou Marble mountains. 1828 Comment
  CAS-BOT-BC21326  Agoseris aurantiaca var. aurantiaca Annie M. Alexander; Louise Kellogg 1949-7-22 5839 Siskiyou Trail to Kings Castle, top of ridge, Paradise Lake, Marble Mountains 1920 Comment
  CAS-BOT-BC15378  Agoseris grandiflora var. grandiflora Louis C. Wheeler 1934-6-11 2683 Siskiyou North Hungry Creek, Siskiyou Mountains 1310 Comment
  CAS-BOT-BC15376  Agoseris grandiflora var. grandiflora Wm. Bridge Cooke 1938-8-5 11441 Siskiyou MacBride Springs, on southwest side of Mount Shasta 1524 Comment
  HSC67941  Agoseris heterophylla J. P. Smith 1973-5-5 6403 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  UC144337  Agoseris heterophylla var. heterophylla A. A. Heller 1905-6-15 8030 Siskiyou near Sisson Comment
  HSC92336  Agoseris monticola Jennifer Whipple 1976-7-14 1466 Siskiyou Wagon Creek Drainage near Wagon Creek 2195 Comment
  CAS-BOT-BC13189  Agoseris monticola Wm. Bridge Cooke 1938-9-8 11643 Siskiyou Near the South Gate Springs, Mount Shasta 2499 Comment
  RSA238757  Agoseris retrorsa Frederick W. Oettinger 1969-7-11 985 Siskiyou Near summit of 'Little Medicine Mountain' (north of Hancock Lake). Salmon Mtns. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  JEPS82424  Agrostis exarata Gilbert Muth 1966-7-31 478 Siskiyou n side Black Mt.; Marble Mt. Wilderness Area 2072 Comment
  UCD37086  Agrostis exarata Beecher Crampton 1956-8-21 3829 Siskiyou Siskiyou County, 0.5 mile northeast of Gumboot Lake. 1767 Comment
  UCD52402  Agrostis exarata E. Wilson 1934-7-1 s.n. Siskiyou Shasta Springs. Comment
  CAS-BOT-BC139567  Agrostis gigantea W. B. Cooke; V. G. Cooke 1976-10-17 53783 Siskiyou Little Bear Springs, Mount Shasta. 1584 Comment
  CAS-BOT-BC139570  Agrostis gigantea Louis C. Wheeler 1934-8-14 3134 Siskiyou Klamath Forest. North side White Mountain. 1767 Comment
  RSA238363  Agrostis humilis Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1285 Siskiyou SE of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC39668  Agrostis idahoensis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5732 Siskiyou Roadside, 1.4 mi. S of Sugar Creek on Parrott Mill Road 1341 Comment
  JEPS83986  Agrostis idahoensis L. R. Heckard with J. Hickman et al. 1986-7-17 6474 Siskiyou ca 5 mi n Seiad Valley (town) (trail up to Kangaroo Peak, s of Lily Pad Lake) 1800 Comment
  JEPS84195  Agrostis idahoensis L. R. Heckard with J. Hickman et al. 1986-7-17 6474 Siskiyou ca 5 mi n Seiad Valley (town) (trail up to Kangaroo Peak, s of Lily Pad Lake) 1800 Comment
  HSC22420  Agrostis pallens J. O. Sawyer 1969-8-2 1723 Siskiyou E facing slope SW of Little Duck Lake 2241 Comment
  HSC30549  Agrostis pallens Frederick W. Oettinger 1969-8-22 1488 Siskiyou Marble Mtn. Wilderness Area, lower meadow at margin of woods, Horse Range Lake, Salmon Mountains 1768 Comment
  CDA28159  Agrostis scabra T. C. Fuller, Don Shaw 1974-9-24 20033 Siskiyou Pacific Crest Trail, summit of the Siskiyou Mountains, east of White Mountain. 0 Comment
  RSA238345  Agrostis stolonifera Frederick W. Oettinger 1969-8-24 1527 Siskiyou Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  CHSC61556  Agrostis thurberiana L. P. Janeway 1983-8-16 557 Siskiyou Siskiyou Mountains; at Poker Flat. 1524 Comment
  HSC30598  Agrostis thurberiana Frederick W. Oettinger 1968-9-5 713 Siskiyou Marble Mtn. Wilderness Area, English Lake Basin, Base Camp meadow. 1936 Comment
  HSC91975  Agrostis thurberiana Jennifer Whipple 1976-7-2 1260 Siskiyou SW of Dobkins Lake, along drainage into lake. 2134 Comment
  UCD37093  Agrostis variabilis Beecher Crampton 1956-8-22 3858 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  UCD53682  Agrostis variabilis Beecher Crampton 1956-8-22 3858 Siskiyou Panther meadow, south slope of Mt. Shasta. 2316 Comment
  UC57363  Allium acuminatum H. M. Hall and E. B. Babcock June, 1903 4086 Siskiyou Shasta Valley Sierra Nevada Mountains, Mount Shasta, Shasta Valley 1158 Comment
  UCD138438  Allium acuminatum Robert E. Preston 1995-6-18 879 Siskiyou ca. 3 mi ese of Hornbrook, in oak woodland adjacent to Ager Rd; (Copco 15' quad). 701 Comment
  JEPS82705  Allium bolanderi Wayne Roderick 1984-6-6 Siskiyou on old highway about 5 mi from Gazelle Comment
  RSA48580  Allium falcifolium Philip A. Munz 1949-5-18 13304 Siskiyou Divide, south of Callahan on road to Trinity Center. 1524 Comment
  UC1731157  Allium lemmonii Dean Wm. Taylor with Glenn Clifton 1991-6-12 11901 Siskiyou Adobe Flat, ca. 4 miles N of Timbered Crater 1106 Comment
  HSC86629  Allium obtusum var. obtusum D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 2134 Comment
  RSA17426  Allium parvum Elmer I. Applegate 1925-4-26 4238 Siskiyou Ridge between Tule Lake and Lower Klamath Marsh. 1372 Comment
  HSC44700  Allium siskiyouense J. O. Sawyer 1978-6-16 3215 Siskiyou Marble Mtn. Wilderness along trail to Elk Valley 1921 Comment
  JEPS96555  Allium siskiyouense Dean W. Taylor 1997-6-11 16042 Siskiyou Moffett Creek, Scott River drainage, head Sissel Gulch 1676 Comment
  UCD138604  Allium siskiyouense L. K. Mann; J. M. Tucker, S. L. Holloway 1963-7-9 s.n. Siskiyou Marble Mountain Wilderness Area. 1950 Comment
Read comments
Mar 27 2015
  JEPS61507  Allium validum Willis L. Jepson 1894-8-4 Siskiyou Cedar Spring Mt. Shasta, Cedar Spring Comment
  CAS-BOT-BC478029  Allium validum Geo. D. Butler 1910-6-19 1577 Siskiyou Wet meadows, Goosenest foothills 1524 Comment
  UC21634  Allotropa virgata Harley P. Chandler Jun 1901 1546 Siskiyou Ridges and Meadows near Marble Mountain 1828 Comment
  CAS-BOT-BC171393  Alnus incana subsp. tenuifolia Alice Eastwood 1921-7-25 10823 Siskiyou Bigelows, on the Mc. Cloud R. Comment
  HSC68578  Alnus rhombifolia Maralyn A. Renner 1980-6-23 973 Siskiyou W Fork Seiad Creek 878 Comment
  CAS-BOT-BC169384  Alnus viridis subsp. sinuata Harley P. Chandler 1901-6-1 1618 Siskiyou Ridges and meadows near Marble Mountain 2133 Comment
  CAS-BOT-BC18595  Alyssum alyssoides John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53447 Siskiyou 7 miles east of Callahan on road to Gazelle. 1173 Comment
  HSC65142  Amaranthus powellii J. P. Smith, Steve Selva 1970-7-17 4434 Siskiyou Parking lot behind ice machine in Ft. Jones. Comment
  RSA78845  Amelanchier pallida Philip A. Munz 1952-7-2 17892 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1524 Comment
  RSA453149  Amelanchier pallida Bonnie C. Templeton 1960-6-21 8545 Siskiyou Edge of cienega, Scott Mts Comment
  UCD169265  Amelanchier pallida T. Bruchman 1978-7-1 297 Siskiyou Tule Lake National Wildlife Refuge, along Hill Road. Comment
  RSA184728  Amelanchier pumila Gilbert Muth 1966-7-8 369 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  CAS-BOT-BC136912  Amelanchier utahensis Doris K. Kildale 1929-7-20 8635 Siskiyou Trail up South Fork Indian Creek to Elk Lick Comment
  CAS-BOT-BC136913  Amelanchier utahensis J. H. Thomas 1954-5-13 4126 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. Vicinity of Blind Horse Creek 1066 Comment
  CAS-BOT-BC136915  Amelanchier utahensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11800 Siskiyou Scott Mt. Rd. so. of Callahan 1463 Comment
  RSA0089707  Amsinckia intermedia Dorothy Parker 1946-6-6 4 Siskiyou Plowman s Valley. 1159 Comment
  CAS-BOT-BC45206  Anaphalis margaritacea Carl B. Wolf 1927-8-27 1148 Siskiyou On the Klamath River 10 mi above the Salmon River Comment
  CAS-BOT-BC45208  Anaphalis margaritacea Doris K. Kildale 1929-8-24 9072 Siskiyou Rattlesnake Meadow near Preston Peak 1524 Comment
  HSC24626  Androsace elongata subsp. acuta L. C. Wheeler 1935-4-18 3432 Siskiyou Greenhorn Creek, Siskiyou Mountains, alt. 3100 ft. S30 T45N R7W 945 Comment
  CAS-BOT-BC391801  Anemone deltoidea Doris K. Kildale 1928-7-2 5393 Siskiyou Salmon Summit via Horn Creek trail 1981 Comment
  CHSC96098  Anemone deltoidea L. P. Janeway 2006-7-3 8758 Siskiyou Klamath Ranges. Salmon Mountains; creeklet at head of Music Creek. 1981 Comment
  HSC65508  Anemone deltoidea Rich White 1977-7-21 129 Siskiyou Slope below outlet of Raspberry Lake 1512 Comment
  UC1736571  Anemone deltoidea Dean W. Taylor 1972-7-3 1576 b Siskiyou Salmon Mountains, near Little Duck Lake Comment
  RSA120810  Anemone deltoidea G. D. Barbe 1957-7-13 388 Siskiyou Private road from Big Flat Camp to the Salmon-Trinity Alps Wilderness Area. 1524 Comment
  UC69625  Anemone deltoidea W. P. Gibbons Jun 1896 Siskiyou <Coleston?>; W. 121 degrees 1249 Comment
  JEPS74465  Anemone drummondii W. J. Ferlatte 1966-6-23 120 Siskiyou Trinity Alps, Dorleska summit 2133 Comment
  JEPS84230  Anemone drummondii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6424 Siskiyou ca. 5 mi. n. town of Seiad Valley (e. slope of Kangaroo Mt., cirque at head of Hell's Canyon); Kangaroo Mt., head of Hell's Canyon 1828 Comment
  SEINET5337556  Anemone drummondii G. Butler 1910-7-8 1683 Siskiyou Marble Mountain 1676 Comment
  CAS-BOT-BC391932  Anemone lyallii Philip A. Munz 1952-7-2 17891 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1524 Comment
  CAS-BOT-BC391933  Anemone lyallii Harley P. Chandler 1901-6-1 1551 Siskiyou North Coast Ranges. Near Marble Mountain 1828 Comment
  CAS-BOT-BC391935  Anemone multifida G. J. Muth 1969-8-10 1315 Siskiyou Ridge w. of Boulder Peak Comment
  CAS-BOT-BC391981  Anemone occidentalis Joseph P. Tracy 1935-7-30 14386 Siskiyou On N.E. side of peak. Salmon Summit 2103 Comment
  HSC28678  Anemone occidentalis Frederick W. Oettinger 1967-7-25 182 Siskiyou Marble Mtn. Wilderness Area, SSE of English Peak 2223 Comment
  RSA537380  Anemone occidentalis Walter Wisura, J. Romero 1991-10-16 4592 Siskiyou SW-slopes of Mt. Shasta near Ski bowl. Comment
  SEINET12099858  Anemone occidentalis H. P. Chandler 1901-1 1637 Siskiyou North Coast Ranges 2134 Comment
  UC668273  Anemone occidentalis Joseph P. Tracy 1935-7-30 14386 Siskiyou in shell-rock cirque on n.e. side of peak Salmon Summit 2103 Comment
  UCD127104  Angelica arguta K. M. Meyer; A. Townesmith 2007-7-31 180 Siskiyou Shasta-Trinity National Forest, 8.1 miles on NF Rd. 17, off US Hwy 97. 1607 Comment
  RSA237410  Angelica tomentosa var. tomentosa Frederick W. Oettinger 1967-7-26 194 Siskiyou Along Crapo Peak Ridge about mid-way between summit and where trail to Toms Lake crosses ridge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2210 Comment
  HSC94197  Anisocarpus madioides G. Fred Hrusa 1998-7-5 14694 Siskiyou Cedar Camp Rd., approx. 5 mi. E of Weitchpec on Hwy. 96. N side of Hwy Comment
  CAS-BOT-BC64785  Antennaria Alice Eastwood 1923-5-20 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC59287  Antennaria argentea Geo. D. Butler 1909-5-31 756 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC58715  Antennaria geyeri A. A. Heller 1914-8-25 s.n. Siskiyou Deetz Station near Black Butte 1158 Comment
  JEPS14953  Antennaria geyeri A. A. Heller 1916-7-21 12482 Siskiyou near Upton 1097 Comment
  CAS-BOT-BC58712  Antennaria geyeri Elmer I. Applegate 1936-7-3 10501 Siskiyou Lava Beds National Monument. East side of Hippo Butte Comment
  UC1222877  Antennaria howellii subsp. howellii Joseph P. Tracy 1950-7-20 19206 Siskiyou 5 mi se Elk Valley; Flint Valley 1432 Comment
  UC1408808  Antennaria media Robert F. Thorne and Fred Oettinger 1969-8-10 38973 Siskiyou s slope of, (at Panther Creek Meadows) Mt. Shasta; Mt. Shasta National Forest, Panther Creek Meadows 2194 Comment
  HSC61191  Antennaria racemosa Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  RSA20170  Antennaria rosea J. T. Howell 1937-7-21 13177 Siskiyou S Fork of Salmon river near Big Flat. 1524 Comment
  RSA416677  Antennaria rosea M. B. Dunkle 1945-1 9315 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  CAS-BOT-BC84731  Antennaria umbrinella Ira L. Wiggins 1955-7-27 13536 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  POM127134  Antirrhinum vexillocalyculatum subsp. breweri L. R. Abrams 1922-8-6 9897 Siskiyou Klamath River 6 miles below Hornbrook Comment
  RSA425832  Antirrhinum vexillocalyculatum subsp. breweri J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5724 Siskiyou Road 8, 3.5 miles from junction with French Creek road. 915 Comment
  HSC67802  Apocynum androsaemifolium J. Sawyer, J. Cole 1980-7-22 3981 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  JEPS49804  Apocynum androsaemifolium Geo. D. Butler 1908-7-5 75 Siskiyou Butler's Ranch near Yreka Comment
  UC1409251  Apocynum androsaemifolium Frederick W. Oettinger 1968-8-19 583 Siskiyou along Tom Taylor Cabin-English Peak trail Crapo Peak; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 2133 Comment
  UC157679  Apocynum androsaemifolium Milo S. Baker 563 Siskiyou Sisson Comment
  RSA238027  Apocynum androsaemifolium subsp. pumilum Frederick W. Oettinger 1967-8-12 248 Siskiyou Crapo Peak, along the Tom Taylor Cabin- English Peak trail. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  CAS-BOT-BC394986  Aquilegia formosa Ira L. Wiggins 1955-7-24 13499 Siskiyou Trail at crossing of China Creek, above diversion dam 1301 Comment
  UC640269  Aquilegia formosa H. and M. Dearing 1939-7-2 3806 Siskiyou near Salmon Mtns 1524 Comment
  POM332443  Aquilegia formosa J. P. Smith, Steve Selva 1970-6-15 3975 Siskiyou 1 mile W of junction Calif. 3 and road 8 leading to Sugar Creek. 1159 Comment
  HSC68428  Aquilegia formosa var. formosa Maralyn A. Renner 1980-7-4 1395 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC73991  Aquilegia formosa var. formosa Gail Newton 1980-6-20 484 Siskiyou Near Bald Mtn. 1097 Comment
  HSC37161  Aquilegia formosa var. formosa A. M. Montalvo, J. D. Ackerman 1974-7-2 347 Siskiyou E slope of Mt. Eddy, near Morgan Meadows, W of Mt Shasta City. Comment
  CHSC1431  Aquilegia formosa var. truncata K. Jaekel 1939-6-30 Siskiyou Mt. Shasta 1219 Comment
  RSA0125741  Arabis breweri Frederick W. Oettinger 1969-7-15 1026 Siskiyou Between Diamond Lake and Upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  RSA0126148  Arabis divaricarpa Frederick W. Oettinger 1969-7-11 974 Siskiyou Bank of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1936 Comment
  HSC22410  Arabis divaricarpa var. interposita J. O. Sawyer 1969-8-2 1709 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  HSC62591  Arabis glabra Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  HSC29174  Arabis holboellii var. retrofracta Frederick W. Oettinger 1969-7-11 992 Siskiyou Marble Mtn. Wilderness Area, near Half-way Spring, trail from English Lake to Diamond Lake 1829 Comment
  HSC6537  Arabis holboellii var. retrofracta R. C. Wunner 1965-6-29 288 Siskiyou California Lava Beds National Monument; S. Tichner Rd., 1.5 mi. S from Mammoth Crater 1555 Comment
  HSC99978  Arabis holboellii var. retrofracta Thomas W. Nelson, & Sydney Carothers 2005-7-17 9386 Siskiyou Etna Summit along Etna-Forks of the Salmon Rd.. 1804 Comment
  POM94756  Arabis holboellii var. retrofracta Geo. D. Butler 1910-6-5 1525 Siskiyou Log Lake, Shackleford Creek. Comment
  HSC40066  Arabis oregana J. P. Smith 1973-5-5 6449 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  HSC240  Arabis platysperma William J. Ferlatte 1966-7-6 185 Siskiyou Caribou Mtn. 2470 Comment
  POM266325  Arabis rectissima Marion Ownbey, Fred G. Meyer 1940-7-3 2161 Siskiyou 5 miles NW of McCloud. Comment
  RSA0001909  Arabis sparsiflora var. subvillosa Geo. D. Butler 1909-5-8 723 Siskiyou Yreka Hills. Comment
  HSC68419  Arabis subpinnatifida Maralyn A. Renner 1980-6-9 854 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  HSC238  Arabis suffrutescens William J. Ferlatte 1967-7-6 609 Siskiyou Dorleska summit. 2134 Comment
  UC705583  Arceuthobium campylopodum Marion Ownbey, Fred G. Meyer 1940-7-6 2212 Siskiyou summit of Cayenne Ridge near Marble Mtn Comment
  SEINET2471281  Arceuthobium cyanocarpum R. L. Mathiasen 2007-8-9 2007 -34 Siskiyou 2 km NE of Park Creek trail head on forest road 17 1980 Comment
  UC1286476  Arceuthobium cyanocarpum W. B. and V. G. Cooke 1963-7-10 34280 Siskiyou e of Bolam Creek Rd n side of Mt. Shasta 22 Comment
  CDA6782  Arctium minus Bill Huse 1958-9-6 1214 -58 Siskiyou Meiss Ranch, Macdoel. 0 Comment
  CDA6781  Arctium minus T. C. Fuller 1960-8-23 4965 Siskiyou ca. 1 mile south of Greenview. 0 Comment
  UCD51964  Arctostaphylos manzanita Warren Roberts 1967-9-25 Siskiyou Near Somes Bar. Comment
  CAS-BOT-BC45441  Arctostaphylos nevadensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11801 Siskiyou At Mile Creek crossing on Scott Mt. Rd. s. of Callahan. 1493 Comment
  HSC4921  Arctostaphylos nevadensis J. O. Sawyer 1968-9-9 660 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC4922  Arctostaphylos nevadensis J. O. Sawyer 1968-7-9 421 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  UC876445  Arctostaphylos nevadensis Geo. L. Fisher 1920-6-28 60 Siskiyou Mt. Shasta Comment
  UCD146712  Arctostaphylos nevadensis G. F. Hrusa 1998-7-5 14683 Siskiyou south side of pass on Happy Camp-O' Brien Road around side of State Boundary, above Indian Creek Camp. 750 Comment
  CAS-BOT-BC45412  Arctostaphylos nevadensis subsp. knightii C. Hart Merriam 1910-10-1 s.n. Siskiyou Happy Camp, Klamath River. Comment
  CAS-BOT-BC46458  Arctostaphylos patula John Thomas Howell 1937-7-25 13472 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CAS-BOT-BC46519  Arctostaphylos patula Doris K. Kildale 1929-7-20 8612 Siskiyou SE. of Preston Peak. 1981 Comment
  CAS-BOT-BC46706  Arctostaphylos patula Howell 1889-4-13 1378 Siskiyou Near the Klamath River. Comment
  HSC4926  Arctostaphylos patula J. O. Sawyer 1968-9-9 654 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC745  Arctostaphylos patula William J. Ferlatte 1967-6-5 492 Siskiyou Big Flat, near public camp 1524 Comment
  HSC7700  Arctostaphylos patula Unknown Siskiyou Lava Beds N.M. Island Butte on Black Lava Flow 1646 Comment
  JEPS101962  Arctostaphylos patula Dean W. Taylor 1999-6-9 17229 Siskiyou Siskiyou Mountains, ca. 5 air miles WSW Hilt, very headwaters of South Fork Hungry Creek 1371 Comment
  JEPS49481  Arctostaphylos patula B. Wise Neilsen 1936-10-18 Siskiyou 2 mi nw Etna Mt.; Salmon Mt. Comment
  OBI70668  Arctostaphylos patula Louis C. Wheeler 1963-9-3 8344 Siskiyou Siskiyou Mtn. Cyclone Gap chrome mine Comment
  POM77329  Arctostaphylos patula Geo D. Butler 1909-4-11 640 Siskiyou Shasta Retreat. Comment
  POM77330  Arctostaphylos patula Geo D. Butler 1909-3-28 586 Siskiyou Hills near Yreka. Comment
  UC60989  Arctostaphylos patula Geo. B. Grant September 1902 5171 Siskiyou Sisson Mount Shasta 914 Comment
  SEINET5460632 Image available Arctostaphylos patula Ross C. Clark, Bob Harvey; Chris Harvey 23912 Siskiyou Town of Mt. Shasta Comment
  HSC68579  Arctostaphylos viscida Maralyn A. Renner 1980-6-23 695 Siskiyou Ridge S of Pacific Crest Trail 1463 Comment
  CAS-BOT-BC47008  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1928-4-2 4404 Siskiyou Klamath River at Somes Bar. Comment
  CAS-BOT-BC47012  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1929-5-31 9162 Siskiyou Cecilville, s. fork Salmon River. Comment
  RSA12511  Arctostaphylos viscida subsp. viscida C. B. Wolf 1934-7-4 5925 Siskiyou Klamath River, 3 mi. below Tee Bar Creek. 213 Comment
  RSA47638  Arctostaphylos viscida subsp. viscida Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11799 Siskiyou Scott Mountain Road south of Callahan. Comment
  CAS-BOT-BC47006  Arctostaphylos viscida subsp. viscida L. Toso Erna Mills 1922-4-20 s.n. Siskiyou Received at 8th California annual World Flower Show. Comment
  UCR200667  Arenaria nuttallii subsp. gregaria Daniel Sanchez-Mata, Thomas Santamaria 2006-7-26 s.n. Siskiyou Scott Mountains, Klamath National Forest; Weed, Rail Creek Road from Gazelle-Callahan Road, Kangaroo Lake, Kangaroo Lake Botanical Area 1900 Comment
  SD88364  Arenaria nuttallii subsp. gregaria Darley F. Howe 1972-7-4 Siskiyou Stony hilltop south of Del Norte; Siskiyou County marker on road to Youngs Valley. 1659 Comment
  SEINET3085679 Image available Arnica Milo S. Baker 1939-6-25 9462 Siskiyou Highway north of Weed towards Klamath Falls near margin of Winter Pool. Comment
  HSC68395  Arnica cernua Maralyn A. Renner 1980-6-26 1245 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC2413  Arnica cordifolia William J. Ferlatte 1966-8-5 338 Siskiyou Caribou Mtn. 2470 Comment
  RSA211217  Arnica cordifolia William J. Ferlatte 1966-8-5 338 Siskiyou Caribou Mtn., Open granite slopes and ridges. Near summit. 2470 Comment
  UC1409370  Arnica cordifolia Frederick W. Oettinger 1968-9-1 647 Siskiyou ssw of, (wet shaded ledge at base of precipice) Abbott's Lake; Salmon Mountains, Marble Mountain Wilderness Area, English P 1798 Comment
  CAS-BOT-BC82548  Arnica discoidea Alice Eastwood 1912-7-15 1105 Siskiyou McCloud Comment
  CAS-BOT-BC82554  Arnica discoidea Annie M. Alexander; Louise Kellogg 1948-9-14 5620 Siskiyou Canyon Creek, branch of Scott River 762 Comment
  RSA264985  Arnica discoidea G. L. Clifton 1975-7-28 s.n. Siskiyou Near Cook and Green pass near Seiad Valley 1463 Comment
  CAS-BOT-BC82605  Arnica lanceolata subsp. prima Geo. D. Butler 1910-7-7 1656 Siskiyou Shackleford Creek 914 Comment
  CAS-BOT-BC82666  Arnica latifolia John Thomas Howell 1937-7-26 13552 Siskiyou Caribou Gulch Comment
  CAS-BOT-BC82668  Arnica latifolia John Thomas Howell 1939-8-2 14909 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC22159  Arnica latifolia J. O. Sawyer 1969-6-11 848 Siskiyou Above C.C.C. road. 1287 Comment
  UC1040751  Arnica mollis A. H. Murphy 1956-8-16 56 Q Siskiyou Big Marshy Meadows Klamath National Forest 1981 Comment
  RSA238811  Arnica nevadensis Frederick W. Oettinger 1969-8-6 1221 Siskiyou South side of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  JEPS32671  Arnica viscosa Paul C. Hutchison 1962-8-2 938 Siskiyou between Panther Meadow and top of ski lift Mt. Shasta 2895 Comment
  UC1494015  Arnica viscosa Gerald B. Straley 1977-6-6 2002 Siskiyou Mt. Shasta (s side) Mt. Shasta 2590 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
  CAS-BOT-BC447710  Aruncus dioicus var. vulgaris John Thomas Howell 1966-8-3 497 Siskiyou Marble Valley by creek; Marble Mts. 1792 Comment
  SEINET5470288 Image available Asarum hartwegii George Neville Jones 1967-6-29 45503 Siskiyou Near Dunsmuir- lower slopes of Mt. Shasta- alt. 3000 Comment
  HSC43267  Asclepias cordifolia K. Irwin 1977-5-22 384 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  UC878962  Asclepias cordifolia A. A. Heller 1916-6-23 12420 Siskiyou n Sisson (near Black Butte) 1127 Comment
  JEPS117565  Asclepias speciosa Lowell Ahart, John Dittes 2010-7-30 16965 Siskiyou About 10 yards west of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  RSA240059  Asclepias speciosa Frederick W. Oettinger 1969-8-12 1331 Siskiyou 1 mile from Etna Summit on road toward Etna. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SEINET10946901  Asclepias speciosa George D. Butler 1910-6-8 Butler 1557 Siskiyou Dry land near Yreka Comment
  HSC48322  Aspidotis densa J. P. Smith, Steve Selva 1970-6-15 3951 Siskiyou Road between Forks of Salmon and Cecilville. 579 Comment
  CAS-BOT-BC99215  Aster Louis C. Wheeler 1934-9-19 3284 Siskiyou Klamath National Forest - Walker 518 Comment
  RSA233703  Aster occidentalis var. occidentalis R. F. Thorne, Fred Oettinger 1969-8-10 38972 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  UC862503  Astragalus arrectus L. E. Smith 1913-7-1 Siskiyou Hilt Comment
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Jan 31 2013
  HSC71337  Astragalus californicus J. P. Smith 1976-5-21 8771 Siskiyou F.S. Rd. 40N08, 10.8 mi. from its junction with S.R. 3. 1280 Comment
  HSC75122  Astragalus purshii J. P. Smith, Thomas W. Nelson 1979-6-16 10142 Siskiyou Klamath National Forest, Hwy. 3, 2.4 mi. from Scott Mtn. summit. 1341 Comment
  CHSC71298  Astragalus purshii var. purshii Vernon H. Oswald; Lowell Ahart 1998-6-11 9202 Siskiyou Dry Lake on the south side of Tennant Rd. ca. 9 air mi east of Grass Lake, ca. 22 air mi northeast of Weed. 1402 Comment
  UC163878  Astragalus purshii var. tinctus Geo. D. Butler 1910-3-20 1134 Siskiyou near Yreka; near Yreka Comment
  RSA110925  Astragalus purshii var. tinctus R. C. Barneby 1954-5-15 11501 Siskiyou 3 miles N of Edgewood. 1204 Comment
  RSA47607  Astragalus purshii var. tinctus Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11710 -A Siskiyou Schoolhouse Hill, Plowmans Valley (Noyes Valley), east fork of Scott River. Comment
  CHSC836  Astragalus whitneyi var. siskiyouensis E. G. England 1939-7-16 Siskiyou Mt. Eddy. 2133 Comment
  HSC81752  Astragalus whitneyi var. siskiyouensis Thomas W. Nelson, Jane P. Nelson 1980-7-20 6190 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  HSC92424  Astragalus whitneyi var. siskiyouensis Jennifer Whipple 1976-7-2 1264 Siskiyou Dobkins Lake drainage on E facing slopes above Dobkins Lake 2256 Comment
  HSC144  Asyneuma prenanthoides William J. Ferlatte 1966-8-3 267 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's. 1524 Comment
  RSA693556  Athyrium americanum M. B. Dunkle 1945-07 s.n. Siskiyou Klamath National Forest; Marble Mts. Comment
  HSC29371  Athyrium distentifolium var. americanum Frederick W. Oettinger 1969-8-21 1476 Siskiyou Marble Mtn. Wilderness Area, Ethel Lake 1738 Comment
  CAS-BOT-BC66201  Athyrium filix-femina var. cyclosorum Edward Lee 1934-8-13 1074 Siskiyou watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1371 Comment
  HSC22158  Athyrium filix-femina var. cyclosorum J. O. Sawyer 1969-7-23 1176 Siskiyou Along road near Horse Range Creek. 1341 Comment
  UC185243  Athyrium filix-femina var. cyclosorum Geo. D. Butler 1910-7-8 1675 Siskiyou Shackleford Creek 1219 Comment
  UC811441  Athyrium filix-femina var. cyclosorum John Thomas Howell 1939-8-3 14988 Siskiyou Spirit Lake; Marble Mts Comment
  CAS-BOT-BC17613  Athysanus pusillus L. E. Smith 1914-5-6 657 Siskiyou Yreka. Comment
  JEPS93959  Atriplex rosea Vernon H. Oswald and Lowell Ahart 1998-9-16 9652 Siskiyou 2 mi s of Highway 161 (Return leg of the Tour Route at Lower Klamath National Wildlife Refuge); Lower Klamath National Wildlife Refuge 1243 Comment
  HSC4367  Atriplex rosea R. C. Wunner 1965-8-14 416 Siskiyou Lava Beds National Monument, Hovey Point. 1220 Comment
  CAS-BOT-BC106540  Balsamorhiza deltoidea Geo. D. Butler 1910-4-16 1180 Siskiyou Klamath Hills Comment
  UC585252  Balsamorhiza deltoidea E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 1995 Siskiyou 1 1/2 mi w of, e and ne slope of spur of Rainbow Ridge above Sulloway Creek Mt. Shasta City; Rainbow Ridge 1180 Comment
  JEPS89303  Balsamorhiza lanata Dean Wm. Taylor with Craig Martz, Joe Molter, Barbara Williams, Julie Nelson 1997-5-4 15981 Siskiyou ca. 4 air mi. s.w. Gazelle (hillslopes of Scott Mts. along the Yreka Ditch, bordering Shasta Valley); Klamath Region (eKR), China Mt. Quad., Scott Mts. 960 Comment
  CAS-BOT-BC16691  Barbarea orthoceras Alice Eastwood 1923-5-18 11822 Siskiyou Shasta Springs. Comment
  JEPS25644  Barbarea orthoceras Rimo Bacigalupi with Mr. and Mrs. Van Deventer of Fort Dick 1959-7-9 7284 Siskiyou Edges of meadow at Poker Flat 1536 Comment
  RSA264995  Barbarea orthoceras Gilbert Muth 1975-7-30 9963 Siskiyou Near Lily Pad Lake near Seiad Valley. 1585 Comment
  JEPS47704  Berberis aquifolium J. W. Kisling 1910-4-20 Siskiyou Edgewood Comment
  HSC39319  Berberis aquifolium var. repens J. P. Smith 1974-5-26 7382 Siskiyou Along FS Rd. 47N03 1524 Comment
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Feb 26 2013
  CAS-BOT-BC75721  Berberis nervosa Louis C. Wheeler 1934-6-29 2822 Siskiyou Klamath Forest. Soda Creek. 1280 Comment
  CAS-BOT-BC75937  Berberis piperiana C. Hart Merriam 1919-10-12 s.n. Siskiyou Scott Valley (near Etna). Comment
  CAS-BOT-BC75940  Berberis piperiana P. C. Everett; E. K. Balls 1959-10-23 23938 Siskiyou 5.4 miles northwest from Trinity-Siskiyou county line, road from Trinity Center to Callaban [Callahan?]. 1584 Comment
  CAS-BOT-BC76002  Berberis pumila Mrs. Eric Anderson 1923-4-19 s.n. Siskiyou Shasta Springs. Comment
  CAS-BOT-BC76005  Berberis pumila John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53389 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones. 1249 Comment
  CAS-BOT-BC169475  Betula occidentalis A. A. Heller 1918-7-16 13036 Siskiyou Mt. Eddy, W of Sisson, on open southeastern gravelly and stony slope 1524 Comment
  CHSC91250  Betula occidentalis Lowell Ahart; John Dittes 2005-6-10 12072 Siskiyou On the north side of the Shasta River, near rocky hillside north of the Shasta River, south of a poor dirt road, about 50 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
  HSC100271  Betula occidentalis J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13065 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2003 Comment
  UC1112866  Blepharipappus scaber Milo S. Baker 1957-6-16 3125 Siskiyou Scott Mt. 1615 Comment
  CDA10531  Blepharipappus scaber subsp. laevis F. D. Horn 1977-6-8 Siskiyou Weed Airport, north of Weed. 0 Comment
  CAS-BOT-BC15783  Boechera Reed Rollins 1940-7-26 15365 Siskiyou Mount Shasta. Along Diller Canyon. 1828 Comment
  CAS-BOT-BC15805  Boechera acutina John Thomas Howell 1937-7-21 13205 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  UC375284  Boechera acutina Geo. D. Butler 1910-6-5 1537 Siskiyou Log Lake Comment
  CAS-BOT-BC16027  Boechera breweri subsp. breweri John Thomas Howell 1937-7-26 13568 Siskiyou Salmon River Canyon. Between Big Flat and Caribou gulch. Comment
  CAS-BOT-BC16149  Boechera covillei R. E. Frenkel 1963-7-13 248 Siskiyou Mount Shasta, vicinity of rain guage below Horse Camp. 2255 Comment
  SEINET3165707  Boechera pauciflora R. W. Spellenberg 2006-6-19 13746 Siskiyou On the Gazelle-Callahan Road, 3 km NE of junction to village of Callahan, 35 km SW of Gaselle. 1050 Comment
  CAS-BOT-BC14136  Boechera pendulocarpa C. L. Hitchcock; J. S. Martin 1939-7-6 5322 Siskiyou Marble Mountains. 0.5 mile southeast of King's Castle. 1828 Comment
  CHSC71291  Boechera pinetorum Vernon H. Oswald; Lowell Ahart 1998-6-11 9179 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
  CAS-BOT-BC25616  Boechera retrofracta John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53410 Siskiyou Fort Jones. 853 Comment
  JEPS53090  Boechera retrofracta Geo. D. Butler 1909-4-24 592 Siskiyou near Yreka (Butler's Ranch) Comment
  CAS-BOT-BC25618  Boechera retrofracta Roxana S. Ferris; Laura Lorraine 1948-6-12 11858 Siskiyou 1.5 miles below summit of Gazelle Moutain grade, east side. 1417 Comment
  JEPS85500  Boechera rollei Wayne E. Rolle 1985-8-27 Siskiyou near Lilypad Lake (and Kangaroo Mt., Red Butte) 1767 Comment
  UC375281  Boechera sparsiflora Geo. D. Butler 1909-5-8 723 Siskiyou near Yreka; ; Siskiyou Co. Comment
  UCD114490  Boechera suffrutescens Robert E. Preston 1984-7-25 493 Siskiyou Arnica Sink. 2044 Comment
  POM46111  Boisduvalia densiflora var. densiflora Geo. D. Butler 1910-6-29 1614 Siskiyou Yreka Creek Comment
  HSC46107  Boschniakia strobilacea J. P. Smith 1973-5-5 6464 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC72872  Boschniakia strobilacea M. A. Baker 1980-6-20 2206 Siskiyou Near Bald Mtn. 1036 Comment
  HSC65509  Boykinia major Rich White 1977-7-7 107 Siskiyou NE shore of Devil's Punchbowl 1433 Comment
  HSC69437  Boykinia major John Palmer 1980-8-13 793 Siskiyou Dead Cow Creek near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  UC375292  Brassica rapa Geo. D. Butler 1908-7-14 1048 Siskiyou fields near Yreka Comment
  CAS-BOT-BC36691  Brassica rapa Alice Eastwood 1912-7-16 1127 Siskiyou McCloud. Comment
  CAS-BOT-BC482219  Brodiaea coronaria var. coronaria Milo S. Baker 1934-6-24 8110 Siskiyou Along Hiwy in Sacto Canyon near Pollards Gulch 20 mi south of Dunsmuir Comment
  SEINET10533805  Brodiaea gracilis Katherine L. Morris 1973-5-25 Morris 278 Siskiyou Collected 7 miles e of mccloud on hwy. 89 In an area of pinus ponderos and Pinus attenuata Comment
  CAS-BOT-BC149494  Bromus briziformis A. A. Heller 1905-6-20 8075 Siskiyou Gazelle. Comment
  HSC30548  Bromus carinatus Frederick W. Oettinger 1969-8-13 1351 Siskiyou Marble Mtn. Wilderness Area, SE ridge of English Lake. 2134 Comment
  POM228871  Bromus carinatus L. C. Wheeler 1935-5-11 3476 Siskiyou Klamath River at Ash Creek 610 Comment
  CAS-BOT-BC149058  Bromus carinatus var. carinatus Geo. D. Butler 1909-6-22 842 Siskiyou Goosenest Foothills. Comment
  HSC101478  Bromus carinatus var. carinatus J. P. Smith, J. O. Sawyer, R. J. Cole 2010-7-11 12992 Siskiyou Along State Route 3 (Scott Mountain Road) southeast of Callahan. 1334 Comment
  JEPS80609  Bromus carinatus var. carinatus Gilbert Muth 1966-7-22 434 Siskiyou meadow below Marble Rim (Marble Mountain Wilderness Area); Marble Mountain Wilderness Area 2011 Comment
  UC1255319  Bromus diandrus Dorothy Parker 1949-6-16 323 Siskiyou at the entrance to McConahue Gulch (Scott Valley); Scott Valley 853 Comment
  HSC65265  Bromus hordeaceus J. P. Smith 1973-5-5 6396 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  UC618657  Bromus hordeaceus W. Bridge Cooke 1938-7-15 11216 Siskiyou above Bear Springs (Mount Shasta); Mount Shasta 1676 Comment
  HSC43062  Bromus inermis K. T. Stillman 1976-8-31 454 Siskiyou E and N sides of Williams Point 366 Comment
  CHSC91358  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
  UC593531  Bromus laevipes E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1907 Siskiyou about 7 mi sw of Yreka (s of highway from Yreka to Fort Jones, Forest House Mountain); Forest House Mountain 1371 Comment
  RSA239067  Bromus marginatus Frederick W. Oettinger 1969-8-13 1351 Siskiyou Southeast ridge of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  UC1145165  Bromus orcuttianus Joseph P. Tracy 1950-7-18 19219 Siskiyou 3 air mi nw from mouth of Salmon River (Prospect Hill); Prospect Hill 1097 Comment
  CAS-BOT-BC161707  Bromus rubens 1951-5-23 90 Siskiyou McConahahy Gulch, Scott Valley. 914 Comment
  HSC101844  Bromus sterilis J. P. Smith, J. O. Sawyer, R. J. Cole 2011-5-22 13172 Siskiyou Along road from Cecilville to Forks of Salmon 743 Comment
  SACT000688  Bromus sterilis G. Kimber 1934-6-9 Siskiyou Close to junction with Sacramento River Comment
  RSA239070  Bromus suksdorfii Frederick W. Oettinger 1969-9-2 1588 Siskiyou Above Bear 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-BC185592  Bromus tectorum Geo. D. Butler 1909-5-21 816 Siskiyou Roadside near Yreka. Comment
  CAS-BOT-BC185593  Bromus tectorum A. A. Heller 1905-6-9 8012 Siskiyou Montague. Comment
  CAS-BOT-BC185595  Bromus tectorum Roxana S. Ferris; Laura Lorraine 1948-6-12 11721 A Siskiyou French Creek Logging Road west of Callahan. 1219 Comment
  HSC68483  Bromus tectorum Maralyn A. Renner 1980-6-10 878 Siskiyou Ridge 1 mi. S of Greenhorn Rd. and 1 mi. E of Mill Creek 1341 Comment
  UC711821  Bromus tectorum Roxana S. Ferris and Laura Lorraine 1941-8-11 10498 Siskiyou Grass Lake Station, on U.S. Highway 97 Grass Lake Station 1554 Comment
  RSA602389  Calamagrostis canadensis L. C. Wheeler 1935-7-26 3716 Siskiyou Jaynes Canyon; Siskiyou Mountains. (Mt. Diablo Mer.) 1951 Comment
  UC1265421  Calamagrostis canadensis Frederick W. Oettinger 1969-9-4 1653 Siskiyou below Tobacco Lake W Siskiyou County, Salmon Mountains, Marble Mountain Wildern (high lake basins in vicinity of English Peak) 1889 Comment
  HSC91977  Calamagrostis koelerioides Jennifer Whipple 1976-8-20 1717 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2470 Comment
  CAS-BOT-BC185089  Calamagrostis purpurascens Douglas Barbe 1959-7-4 531 Siskiyou North shore of Caribou Lake, about 4 miles southwest of Big Flat Camp, Klamath National Forest. 2103 Comment
  UC1265403  Callitriche verna Frederick W. Oettinger 1969-9-4 1624 b Siskiyou Diamond Lake Salmon Mountains, Marble Mountain Wilderness Area (vicinity of English Peak, w Siskiyou County) 2072 Comment
  CAS-BOT-BC85733  Calocedrus decurrens H. A. Thomas; J. H. Thomas 1954-7-27 4558 Siskiyou Salmon - Trinity Mts. about 6 miles SE of Cecilville. Between Mt. Veiw Cabin and S. Fork of Salmon River. 944 Comment
  HSC31499  Calocedrus decurrens Steve Selva, Roger Jensen 1974-8-17 22 Siskiyou Base of Sugar Lake trail along Road 40N23 Comment
  JEPS39851  Calocedrus decurrens W. L. Jepson 1914-8-14 Siskiyou Dunsmuir Comment
  RSA12603  Calocedrus decurrens C. B. Wolf 1934-7-6 5983 Siskiyou 1/4 mile east of Mt. Shasta City, southwest slope of Mt. Shasta 1098 Comment
  CAS-BOT-BC487851  Calochortus coeruleus W. B. Cooke; V. G. Cooke 1946-6-17 17525 Siskiyou Along road below Wagon Camp, Mt. Shasta 1737 Comment
  RSA121614  Calochortus coeruleus G. D. Barbe 1955-7-6 115 Siskiyou Dry areas above NE shore of Taylor lake, Salmon Mtns. 1951 Comment
  RSA360080  Calochortus coeruleus Louis C. Wheeler 1934-6-7 2655 Siskiyou North Hungry Creek. 1220 Comment
  CAS-BOT-BC488625  Calochortus elegans F. D. Douthitt 1923-7-12 15 Siskiyou Dry Lake Mountain; Klamath Forest 2133 Comment
  CAS-BOT-BC488611  Calochortus elegans var. nanus C. L. Hitchcock; J. S. Martin 1939-7-9 5335 Siskiyou Paradise Lake, near King's Castle 1767 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
  SEINET12047246  Calochortus longebarbatus E. F. Heinitz 1980-1 27 Siskiyou at Tom Young Flat ca 2 mi NW of Pondosa 1292 Comment
  CAS-BOT-BC493099  Calochortus nudus Eastwood; Miss E. Cannon 1895-6-17 s.n. Siskiyou Shasta Comment
  UC1163460  Calochortus persistens Marion Ownbey and S. J. Preece Jr. 1952-6-25 3341 Siskiyou w of Yreka (ridge road to Deadwood Lookout) Comment
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Nov 3 2011
  JEPS17772  Calochortus tolmiei W. L. Jepson 1907-7-5 2824 Siskiyou Marble Mt. Comment
  SEINET12045036  Calochortus tolmiei J. P. Smith 1973-1 6375 Siskiyou in & around O'Neill Campground near Seiad Valley 488 Comment
  CAS-BOT-BC132631  Calochortus uniflorus Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  RSA0120948  Caltha biflora G. D. Barbe 1955-7-6 124 Siskiyou SE end of Taylor Lake, Salmon Mtns. 1951 Comment
  CAS-BOT-BC181519  Caltha leptosepala Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  HSC64343  Caltha leptosepala J. P. Smith, Steve Selva 1970-7-17 4456 Siskiyou Below Kangaroo Lake. 1890 Comment
  JEPS24805  Calycadenia truncata Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6814 Siskiyou about 4 mi n Weed (along US Hwy 99, on short grade down into floor of valley); Shasta Valley 920 Comment
  CAS-BOT-BC272750  Calycadenia truncata subsp. truncata Alice Eastwood 1922-10-23 11552 Siskiyou Yreka Comment
  HSC4431  Calyptridium umbellatum William J. Ferlatte 1966-6-22 77 Siskiyou Josephine Lake Basin 1677 Comment
  SBBG30589  Calyptridium umbellatum D. Myrick 1968-6-27 2043 Siskiyou trail to Lake Josephine above Carter's Ranch, 5 mi S of Big Flat, head of Coffee Crk 1828 Comment
  SD53343  Calyptridium umbellatum Darley F. Howe 1962-8-6 3410 Siskiyou Mt. Shasta 2440 Comment
  HSC40876  Calyptridium umbellatum J. O. Sawyer 1973-7-17 2547 Siskiyou Along trail above Wild Lake 1921 Comment
  CAS-BOT-BC221256  Calystegia malacophylla subsp. malacophylla Wm. Bridge Cooke 1940-6-7 15098 Siskiyou Along the Pacific Highway near Black Butte Comment
  RSA29661  Camissonia contorta Louis C. Wheeler 1935-5-26 3527 Siskiyou Yreka Creek, Siskiyou Mountains 854 Comment
  JEPS6116  Campanula prenanthoides Alice Eastwood 1912-7-21 1275 Siskiyou Sisson Comment
  SEINET10840344  Campanula prenanthoides Muth 1976-7-29 MUTH s.n. Siskiyou NR KUNTZ CR, SEIAD V. QUAD, NR SEIAD VALLEY 6001', FOREST FLOOR, COBBLY SOIL Comment
  UC220935  Campanula prenanthoides Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2511 Siskiyou Mt. Shasta and vicinity Comment
  RSA758220  Campanula prenanthoides R. F. Thorne 1969-8-2 63327 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
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Jul 26 2017
  SEINET10463313  Campanula prenanthoides Frank W. Peirson 1926-7-11 Peirson 7023 Siskiyou HALF WAY UP GRADE, GRADE W OF ETNA OR ETNA MILLS Comment
  SEINET10463362  Campanula prenanthoides Alice Eastwood 1921-7-25 Eastwood 10842 Siskiyou Bigelows, on the McCloud R. Comment
  SEINET10464346  Campanula rotundifolia Alice Eastwood 1912-8-30 Eastwood 2038 Siskiyou Mount Eddy Comment
  SEINET10464347  Campanula rotundifolia Albert Kellogg 1853-8-5 Kellogg 108 Siskiyou Cabin Meados, 1 miles north of Cory Peak, Klamath NAtional Forest (11 miles east of Callahan on road to Gazelle, then south 5.8 miles on logging road) 1844 Comment
  SEINET10905936  Campanula scabrella England 1987-7-16 ENGLAND s.n. Siskiyou Mt. Eddy Timberline. Comment
  SEINET10463779  Campanula scouleri LEE 1934-8-13 LEE 1080 Siskiyou Watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1463 Comment
  SEINET10463870  Campanula wilkinsiana Baker 1899-7-31 Baker s.n. Siskiyou E slope of Mt. Shasta on Ash Creek. Comment
  HSC77125  Cardamine nuttallii K. T. Stillman 1976-6-25 101 Siskiyou Marble Mtn. Wilderness Area, upper Marble Valley Comment
  HSC76375  Carex aquatilis var. dives L. P. Janeway 1982-7-2 36 Siskiyou Poker Flat, end of FS Rd. 18N33 1524 Comment
  HSC76845  Carex athrostachya L. P. Janeway 1982-8-2 104 Siskiyou 3 1/2 mi. along spur road into Coon Run 793 Comment
  UCD77462  Carex aurea Robert E. Preston 2002-7-12 1915 Siskiyou Klamath National Forest, S slope of Rainbow Mountain 1968 Comment
  JEPS63754  Carex barbarae W. L. Jepson Jul 1894 57 a Siskiyou Sisson Comment
  CAS-BOT-BC19650  Carex brainerdii Alice Eastwood 1923-5-18 11852 Siskiyou Shasta Springs. Comment
  CHSC106472  Carex breweri Peter F. Zika 2009-8-16 24605 Siskiyou Cascade Range Highlands (CaRH). Near top of Road A10 (Everett Memorial Highway), S slope of Mt. Shasta. 2400 Comment
  CHSC62795  Carex buxbaumii L. P. Janeway 1993-8-30 4563 Siskiyou West side of Cedar Lake; head of South Fork Sacramento River. 1741 Comment
  UC195512  Carex cusickii Geo. D. Butler 1910-6-5 1475 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC34881  Carex deflexa var. boottii John Thomas Howell 1939-8-3 15007 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  JEPS25915  Carex densa W. L. Jepson July, 1884 51 a Siskiyou Sisson Comment
  HSC81978  Carex echinata subsp. echinata Thomas W. Nelson, Jane P. Nelson 1979-6-16 4861 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  CHSC109948  Carex geyeri Peter F. Zika; Julia Nelson 2012-6-21 25906 Siskiyou Klamath Range. Ridge above South Fork Willow Creek, 9 air km ENE of Gazelle Mountain, Shasta-Trinity National Forest, FS Road 42N42Y, 0.25 road miles E of junction with 42N19. 1665 Comment
  CHSC82808  Carex halliana L. P. Janeway 2002-7-12 7626 Siskiyou High Cascade Range. 2.7 km west of the summit of Ash Creek Butte; along west side of Road 19 (Military Pass Road) about 1.6 km south of the National Forest boundary. 1780 Comment
  HSC81979  Carex hassei Thomas W. Nelson, Jane P. Nelson 1979-6-16 4860 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  SEINET12649459 Image available Carex hassei Peter F. Zika, Barbara Wilson 2011-1 25668 Siskiyou 1600 Comment
  SEINET7485275 Image available Carex hassei Peter F. Zika 2009-1 24535 Siskiyou near Pacific Crest Trail, Route 3, Scott Mountain Summit 1640 Comment
  CAS-BOT-BC28086  Carex hoodii Rimo Bacigalupi 1959-7-2 7233 Siskiyou Big Flat Campground, headwaters of South Fork of the Salmon River, 1508 Comment
  CAS-BOT-BC7599  Carex inops subsp. inops L. E. Smith 1913-4-29 s.n. Siskiyou McCloud 986 Comment
  UC837247  Carex inops subsp. inops L. E. Smith 1913-4-29 149 Siskiyou McCloud Comment
  HSC76792  Carex integra L. P. Janeway 1982-8-13 126 Siskiyou 1 m from N edge of Bear Lake 1814 Comment
  JEPS100907  Carex jonesii Dean W. Taylor 1987-6-7 9025 Siskiyou Paynes Springs 2011 Comment
  UC1576760  Carex jonesii Dean Wm. Taylor with Glenn L. Clifton and Rexford E. Palmer 1987-6-7 9025 Siskiyou Paynes Springs Upper Modoc Plateau, Medicine Lake highland 2011 Comment
  CAS-BOT-BC35521  Carex jonesii William J. Ferlatte 1967-6-27 531 Siskiyou Big Flat, between campground and S. Fork of the Salmon River 1524 Comment
  CAS-BOT-BC31306  Carex lenticularis var. impressa Annetta Mary Carter 1939-8-20 1461 Siskiyou NW side of Taylor Lake, 12 mi SW of Etna, Salmon Mountains. 2026 Comment
  CAS-BOT-BC31308  Carex lenticularis var. impressa John Thomas Howell 1939-8-3 14960 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC562249  Carex lenticularis var. impressa Joseph P. Tracy 1935-8-1 14415 Siskiyou head of west branch of Knownothing Creek Rock Lake 1889 Comment
  HSC76377  Carex lenticularis var. lipocarpa L. P. Janeway 1982-6-25 24 Siskiyou 300 m. SE of No Mans Creek, 600 m. up Creek from the Clear Creek Rd. 610 Comment
  CHSC96452  Carex luzulina Gordon Leppig; Jennifer Kalt 1996-7-9 354 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
  UC1950133  Carex luzulina Barbara Ertter 1990-7-14 9350 Siskiyou E-facing hillside; just N of roadfork on FR 40N234 ca 1/2 mi S of Wagon Creek, E side Mt Eddy ca 4 airmiles W of Mt Shasta City Comment
  CAS-BOT-BC31626  Carex luzulina var. ablata A. A. Heller 1922-7-3 13674 Siskiyou Wet soil along Wagon creek on Mt. Eddy. 2225 Comment
  RSA577789  Carex luzulina var. ablata L. C. Wheeler 1935-7-26 3719 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  HSC60835  Carex microptera Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  CAS-BOT-BC32050  Carex multicaulis John Thomas Howell 1937-7-26 13556 Siskiyou Caribou Gulch Comment
  SEINET4022366  Carex multicaulis C. Davidson 1975-1 2651 Siskiyou Klamath Nat'l Forest. 9.1 mi. west of Gazelle on road to Callahan. 1120 Comment
  SEINET7568458 Image available Carex multicaulis E. B. Copeland 1903-8-15 3780 Siskiyou Mt. Shasta. 2134 Comment
  CHSC86681  Carex nebrascensis Jenny Marr 1993-7-1 63 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CHSC98338  Carex nebrascensis Thomas W. Nelson; Jane P. Nelson 1982-7-30 7321 Siskiyou North Coast Ranges. Along Forest Service road 41N08 to Kangaroo Lake at bridge over Rock Fence Creek. 1584 Comment
  CHSC96088  Carex nervina L. P. Janeway 2006-7-3 8755 Siskiyou Klamath Ranges. Salmon Mountains; Music Creek Trailhead near upper Music Creek. 1893 Comment
  SEINET7568934 Image available Carex nigricans Frederick W. Oettinger, R. F. Thorne 1969-8-6 1261 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, west of Tom's Lower Pond. 1951 Comment
  HSC7157  Carex nudata L. C. Wheeler 1934-9-22 3296 Siskiyou Walker, Klamath River Comment
  SEINET7569426 Image available Carex nudata John Thomas Howell, T. C. Fuller, G. D. Barbe 1980-4-29 53432 Siskiyou Along East Fork Scott River 2 miles east of Callahan on road to Gazelle. 991 Comment
  CAS-BOT-BC119202  Carex pachystachya A. A. Heller 1916-7-20 12468 Siskiyou Near Wagon Creek Falls, E side of Mt. Eddy 1524 Comment
  CAS-BOT-BC119203  Carex pachystachya A. A. Heller 1916-7-20 12468 Siskiyou Near Wagon Creek Falls, E side of Mt. Eddy 1524 Comment
  CAS-BOT-BC119205  Carex pachystachya Louis C. Wheeler 1934-7-2 2841 Siskiyou Little Smoky Creek, Sterling Mt. Siskiyou Mts. 1280 Comment
  HSC60837  Carex pachystachya Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  CAS-BOT-BC118929  Carex pellita Roxana S. Ferris; Laura Lorraine 1948-6-12 11819 Siskiyou East fork of Scott River drainiage, Parker Ranch, Plowman's (Noyes) Valley 1203 Comment
  JEPS25564  Carex phaeocephala Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7189 Siskiyou just e Mt. Shasta Ski Bowl Lodge (at upper end of Everitt Highway, sw slopes of Mt. Shasta); Mt. Shasta 2346 Comment
  UC195522  Carex praegracilis Geo. D. Butler 1910-4-19 1202 Siskiyou near Yreka Comment
  CDA33132  Carex praegracilis G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-28 2593 Siskiyou 2.5 miles south of Grenada Station between old highway and railroad right-of-way, Grenada. Comment
  CAS-BOT-BC118771  Carex preslii John Thomas Howell 1937-7-25 13482 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC118216  Carex rossii John Thomas Howell; Gordon H. True 1972-6-8 48857 Siskiyou S of summit on road from Takilma to Happy Camp Comment
  CHSC43993  Carex rossii L. P. Janeway 1983-8-7 525 Siskiyou Along S. Fk. Indian Cr. Rd (17N32) ca 17 miles from Indian Cr. Rd. 1402 Comment
  HSC62622  Carex scabriuscula Al Hobart 1968-6-9 Siskiyou Youngs Valley Comment
  HSC82382  Carex scabriuscula Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4536 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  HSC39280  Carex scopulorum J. O. Sawyer 1969-7-25 1562 Siskiyou Above High Lake 2104 Comment
  RSA238966  Carex scopulorum Frederick W. Oettinger 1968-8-2 353 Siskiyou South end of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC117249  Carex spectabilis John Thomas Howell 1937-7-25 13475 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  UC1265454  Carex spectabilis Frederick W. Oettinger 1969-9-2 1601 a Siskiyou above Tom Taylor Cabin (Bear Meadow); Salmon Mountains, Marble Mountain Wilderness 2164 Comment
  HSC26706  Carex spectabilis William J. Ferlatte 1971-9-18 1379 Siskiyou Caribou Basin, Sawtooth Ridge 2256 Comment
  HSC30675  Carex spectabilis Frederick W. Oettinger, R. F. Thorne 1969-8-6 1254 Siskiyou Marble Mtn. Wilderness Area, the New York Flumes, Pine Lake Basin 1860 Comment
  SEINET7575712 Image available Carex spectabilis John Thomas Howell 1939-8-8 15189 Siskiyou Black Mt, Marble Mts. Comment
  JEPS109254  Carex stipata var. stipata D. W. Taylor 2003-8-12 18670 b Siskiyou Weed, growing along Boise Creek near the Hwy 97 bridge. Comment
  UC1034048  Carex straminiformis W. Bridge Cooke 1941-9-10 16309 Siskiyou vicinity Horse Camp; Mt. Shasta Comment
  CAS-BOT-BC115166  Carex vesicaria A. A. Heller 1940-7-24 15763 Siskiyou Edge of Castle Lake. Comment
  RSA550444  Carex vesicaria R. Tallent 1987-8-12 897 a Siskiyou Klamath National Forest; Long Gulch Lake. 1940 Comment
  UCD21465  Carex vesicaria Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1205 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along shores of Gray Rock Lake. 1800 Comment
  CAS-BOT-BC114817  Carex whitneyi J. Major 1961-7-14 645 Siskiyou In Mud Creek, Mount Shasta. 1706 Comment
  UC722137  Castilleja C. L. Hitchcock and J. S. Martin 1939-7-6 5229 Siskiyou on Takilma to Happy Camp road (peak above and n of Divide of Siskiyou Mountains); Siskiyou Mountains 1828 Comment
  HSC99979  Castilleja affinis subsp. affinis Thomas W. Nelson, & Sydney Carothers 2005-7-17 9387 Siskiyou Etna Summit along Etna-Forks of the Salmon Rd.. 1804 Comment
  UC1540025  Castilleja applegatei M. Mitchell 1936-5-21 26 Siskiyou Fleppe Chimney; Lava Beds National Monument 1478 Comment
  JEPS45563  Castilleja applegatei subsp. pinetorum Douglas Barbe 1955-7-9 146 Siskiyou sw side Kangaroo Lake; Klamath Mountains, Scott Mountains 1828 Comment
  RSA31873  Castilleja applegatei subsp. pinetorum A. A. Heller 1940-7-25 15766 Siskiyou Along the trail to Horse Camp, Mt. Shasta. 2287 Comment
  HSC602  Castilleja arachnoidea William J. Ferlatte 1967-7-26 749 Siskiyou Caribou Basin, ridge W of Big Caribou Lake. 2134 Comment
  SEINET10744867  Castilleja arachnoidea Andrew Townesmith, Karen M. Meyer 2007-7-30 Townesmith 869 Siskiyou Shasta-Trinity National Forest. At the upper end of county road A10, mile 13.8 (from beginning of road in Mount Shasta City, 12.7 miles from National Forest boundary sign). Highest vehicle accessible point on Mount Shasta. T41N R3W S33 NW 1/4. 2399 Comment
  JEPS14712  Castilleja lacera Rimo Bacigalupi with Lincoln Constance and M. Hiroe 1956-6-9 5694 Siskiyou 1.5 mi n Weed (along U.S. Highway 99); Shasta Valley Comment
  JEPS4513  Castilleja lacera Geo. D. Butler 1909-6-20 932 a Siskiyou near Yreka; Upper Portugese Ditch Comment
  SJSU2090  Castilleja linariifolia J. W. Tilden 1958-6-25 1260 Siskiyou near Monument Headquarters, Lava Beds National Monument Comment
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Jun 3 2009
  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
  HSC19170  Castilleja miniata J. O. Sawyer 1969-7-24 1506 Siskiyou SE facing slope W of Sugar Lake 1905 Comment
  JEPS74695  Castilleja miniata T. C. Fuller 1974-9-24 20044 Siskiyou sw slope White Mtn. (headwaters of Horse Creek); Siskiyou Mts, , Horse Creek Comment
  UC163708  Castilleja miniata Geo. D. Butler 1909-6-23 929 Siskiyou foothills Goosenest Mountain Comment
  UC163709  Castilleja miniata Geo. D. Butler 1910-6-3 1472 Siskiyou Quartz Valley Comment
  CAS-BOT-BC253616  Castilleja miniata Edmonds 1890-7-6 s.n. Siskiyou unspecified Comment
  CDA33294  Castilleja miniata T. C. Fuller 1974-9-24 20044 Siskiyou Northwestern; Klamath Ranges region; Headwaters of Horse Creek, southwest slope of White Mountain, Siskiyou Mountains. 0 Comment
  RSA183418  Castilleja miniata J. M. Tucker 1963-8-17 3740 Siskiyou Red Rock Creek, in vicinity of cabin. Lower Red Rock Valley, Marble Mountain Wilderness Area. 1494 Comment
  UC651920  Castilleja miniata Hugh and Margaret Dearing 1939-7-2 3804 Siskiyou Salmon Mountain summit; Salmon Mountain Comment
  JEPS3851  Castilleja miniata subsp. elata W. L. Jepson 1937-7-30 18560 Siskiyou headwaters of Indian Creek; Poker Flat 1584 Comment
  HSC104288  Castilleja miniata subsp. miniata Samantha E. Andres 2016-7-4 21 Siskiyou Marble Mountain Wilderness; alongside Pacific Crest Trail near the Sky High Lakes Trailhead 1829 Comment
  JEPS26523  Castilleja pruinosa Lauramay T. Dempster 1961-7-2 1860 Siskiyou sw of Etna (ridge w of Salmon Mountain Summit) 1828 Comment
  UC1341871  Castilleja pruinosa Noel H. Holmgren and James L. Reveal 1966-6-9 2679 Siskiyou 4 mi n Weed (U.S. Hwy 97); Shasta Valley 1158 Comment
  POM301760  Castilleja pruinosa Marion Ownbey, D. H. Brown 1941-6-22 2422 Siskiyou West of Craggy Mountain, northwest of Yreka Comment
  RSA184819  Castilleja pruinosa Gilbert Muth 1966-7-14 394 -B Siskiyou Marble, south of Marble Valley, Marble Mountains. 1793 Comment
  CAS-BOT-BC482442  Castilleja schizotricha Dana York 2011-8-12 3047 Siskiyou Marble Mountain Wilderness, Klamath National Forest, E-facing slope of Marble Mountain 2055 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
  CAS-BOT-BC48649  Ceanothus cordulatus A. A. Heller 1916-6-20 12418 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy in openings in the forest 1188 Comment
  CAS-BOT-BC126854  Ceanothus cuneatus John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53421 Siskiyou East side of Scott Valley, 10 miles south of Fort Jones on road to Callahan 853 Comment
  CAS-BOT-BC48387  Ceanothus cuneatus John Thomas Howell 1939-7-31 14859 Siskiyou Scott Valley near Fort Jones Comment
  SFV5164  Ceanothus cuneatus B. C. Templeton 1960-6-21 8534 Siskiyou Between the agricultural Experiment Station and the California state line._x000B_Grassy hillside. Comment
  UC163698  Ceanothus cuneatus var. cuneatus Geo. D. Butler 1910-5-28 1418 Siskiyou near Yreka Comment
  CAS-BOT-BC50683  Ceanothus integerrimus var. macrothyrsus K. L. Chambers 1967-6-22 2855 Siskiyou Siskiyou Mountains: rocky knoll ca. 500 ft. above and east of the freeway (Hwy. 5) at the Hilts exit, Siskiyou Pass 1097 Comment
  CAS-BOT-BC53080  Ceanothus prostratus Elmer I. Applegate 1935-6-11 9510 Siskiyou Upper Ice Cave area, Lava Beds National Monument Comment
  CAS-BOT-BC53100  Ceanothus prostratus Doris K. Kildale; J. W. Gillespie 1929-6-22 8037 Siskiyou Mt. Shasta - Black Butte Comment
  HSC39328  Ceanothus prostratus J. P. Smith 1974-5-25 7375 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  JEPS19762  Ceanothus prostratus Rimo Bacigalupi with S. Galen Smith 1957-6-26 5958 Siskiyou 3.5 mi below (ne) Gumboot Lake (Canyon of South Fork Sacramento River) 1402 Comment
  JEPS42173  Ceanothus prostratus W. L. Jepson 1940-6-23 20015 Siskiyou 2 mi s Andesite 975 Comment
  UC375367  Ceanothus prostratus Geo. D. Butler 1908-8-2 410 Siskiyou Quartz Valley Comment
  POM85996  Ceanothus sanguineus Geo. D. Butler 1910-6-17 1567 Siskiyou Hundrey Mtn. 1220 Comment
  HSC59642  Ceanothus velutinus J. P. Smith, Steve Selva 1970-6-16 4047 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  JEPS42384  Ceanothus velutinus W. L. Jepson July 1894 14014 Siskiyou Sisson Comment
  RSA398977  Ceanothus velutinus J. O. Sawyer 1977-7-6 3020 Siskiyou open slopes S of Little Duck Lake 2134 Comment
  RSA398982  Ceanothus velutinus M. B. Dunkle 1944-7-7 9074 Siskiyou Deer Creek. 1768 Comment
  UC1037434  Ceanothus velutinus Douglas Barbe 1955-8-1 320 Siskiyou se Craggy Lookout (on Mt. Bolivar); Scott Mountains, se of Craggy Lookout on Mt. Bolivar 2194 Comment
  UC1483459  Ceanothus velutinus Maralyn A. Renner 1980-7-23 1921 Siskiyou Pacific Crest Trail on w side Upper Devils Peak; Klamath National Forest, Seiad Valley Quad. 1767 Comment
  UC618734  Ceanothus velutinus W. Bridge Cooke 1938-6-24 11104 Siskiyou Diller Canyon Mount Shasta, Shasta Fir Forest, Sisson Southern Trail (in the Shasta Fir Forest, Sisson Southern Trail) Comment
  CAS-BOT-BC52803  Ceanothus velutinus var. velutinus Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  CAS-BOT-BC52811  Ceanothus velutinus var. velutinus John Thomas Howell 1937-7-21 13160 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC52842  Ceanothus velutinus var. velutinus A. A. Heller 1919-6-27 13252 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC52845  Ceanothus velutinus var. velutinus Doris K. Kildale 1928-8-20 6633 Siskiyou Head of North Fork of Salmon River at Finley's Upper Camp Comment
  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
  RSA170310  Centaurea maculosa T. C. Fuller 1963-8-26 11155 Siskiyou Abundant in barley, also in adj. lawn of ranch house and rangeland, W H Kerr, Flying K Ranch, upper Quartz Valley, 2 miles S of Mugginsville. Comment
  CDA18039  Centaurea melitensis P. Brucker 1999-7-19 PDR 977259 Siskiyou US Forest Service, Forks of Salmon Ranger Station, Fork of Salmon. 0 Comment
  UC1216710  Centaurea solstitialis W. B. and V. G. Cooke 1962-8-19 33547 Siskiyou Mt. Shasta 1280 Comment
  HSC67015  Centaurea solstitialis J. P. Smith, Steve Selva 1970-7-16 4403 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  HSC19081  Cephalanthera austiniae J. O. Sawyer 1969-7-23 1175 Siskiyou Along road near Horse Range Creek. 1341 Comment
  CAS-BOT-BC384969  Cerastium arvense K. T. Stillman 1976-8-7 209 Siskiyou Marble Mountain Wilderness Area 1950 Comment
  UC465650  Cerastium arvense Annie M. Alexander and L. Kellogg 1911-7-16 256 Siskiyou S. Fork Salmon R. 1524 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
  CAS-BOT-BC384989  Cerastium dichotomum M. V. Maxwell 1961-5-10 s.n. Siskiyou 5 mi. e. of Montague 807 Comment
  UCD97997  Cerastium dichotomum T. C. Fuller 1962-5-18 8475 Siskiyou B. M. Long prop., Little Shasta Road, 5 miles east of Montague. Comment
  CAS-BOT-BC207628  Cercis occidentalis John Thomas Howell 1934-7-4 12408 Siskiyou SE corner of Siskiyou Co. Comment
  CAS-BOT-BC142158  Cercocarpus betuloides var. betuloides Louis C. Wheeler 1934-7-12 2901 Siskiyou Cottonwood Creek - Klamath Forest 1066 Comment
  UCD113081  Cercocarpus betuloides var. macrourus Delbert W. Hubbs 1975-10-8 s.n. Siskiyou Near Callahan. 1219 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
  CAS-BOT-BC276744  Chaenactis douglasii var. douglasii Ynez Whilton Winblad 1941-7-1 s.n. Siskiyou Between Weed and Dunsmuir Comment
  CAS-BOT-BC276756  Chaenactis douglasii var. douglasii M. B. Dunkle 1945-8-4 9286 Siskiyou Kings Castle, Klamath Forest 2377 Comment
  UC34677 Image available Chaenactis suffrutescens J. G. Lemmon Siskiyou Head-waters Sacramento River Sacramento River; headwaters of the Sacramento River Comment
  UC90185  Chaenactis suffrutescens E. Palmer 1892-7-1 Siskiyou Mt. Shasta Comment
  CHSC98913  Chamaebatiaria millefolium L. P. Janeway; B. Castro 2007-7-28 9132 Siskiyou Modoc Plateau. Next to the southern lobe of the Callahan Flow, along Road 44N01 1.7 km south-southwest of Cinder Butte. 1795 Comment
  UC1539999  Chamaebatiaria millefolium M. Mitchell 1936-5-21 24 Siskiyou Lava Beds National Monument, Frozen River Cave Frozen River Cave; Lava Beds National Monument, Frozen River Cave 1348 Comment
  HSC67707  Chamaecyparis lawsoniana John Palmer 1980-7-24 607 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  CAS-BOT-BC160569  Chamerion angustifolium Gilbert Muth 1965-8-12 s.n. Siskiyou 2/3 up meadow on back of Blk. Mt. 2133 Comment
  CAS-BOT-BC68246  Cheilanthes gracillima Doris K. Kildale 1929-7-20 8579 Siskiyou East spur of Preston Peak above Rockefeller Lake 2133 Comment
  HSC76974  Cheilanthes gracillima K. T. Stillman 1976-6-25 44 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  RSA237844  Cheilanthes gracillima Frederick W. Oettinger 1968-8-5 405 Siskiyou Mount Hemlock Forest, Shasta Ridge, between Diamond Lake and English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC68207  Cheilanthes gracillima Laura M. Lathrop 1903-7-1 s.n. Siskiyou Sisson Comment
  CAS-BOT-BC68248  Cheilanthes gracillima L. B. Kildale 1930-6-1 9854 Siskiyou Summit between Sawyers Bar & Etna Mill Comment
  HSC78315  Cheilanthes gracillima L. P. Janeway 1983-9-22 687 Siskiyou Ridge NW of Poker Flat (the Siskiyou crest) 1585 Comment
  UC1536790  Chenopodium album Gordon H. True Jr. 1939-7-25 1033 Siskiyou nw Dorris; Meisse Lake Comment
  HSC92340  Chenopodium atrovirens Jennifer Whipple 1977-8-5 2189 Siskiyou Near Little Crater Lake 2195 Comment
  HSC4389  Chenopodium leptophyllum R. C. Wunner 1965-6-30 316 Siskiyou Lava Beds National Monument, at start of Symbol Bridge Trail. 1387 Comment
  UC21639  Chimaphila menziesii Brewer 1862-9-16 1413 Siskiyou Camp 98 1828 Comment
  UC456181  Chimaphila umbellata I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Castle lake 1524 Comment
  POM258013  Chimaphila umbellata subsp. occidentalis C. L. Hitchcock, J. S. Martin, A. S. Hitchcock 1939-7-8 5300 Siskiyou 15 miles north of Happy Camp on Happy Camp-Tailma Hiway. 915 Comment
  RSA183672  Chimaphila umbellata subsp. occidentalis Gilbert Muth 1965-8-10 197 Siskiyou Marble Valley and along upper trail, Marble Mts. Comment
  CDA7382  Chrysanthemum balsamita F. D. Horn 1976-9-17 Siskiyou Hennessy Street. McCloud. 0 Comment
  UC1409350  Chrysolepis chrysophylla Frederick W. Oettinger 1969-7-29 1097 Siskiyou ridge just s Uncles Lake (near inlet stream, vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  CAS-BOT-BC36202  Chrysolepis sempervirens E. B. Copeland 1903-8-13 3835 Siskiyou Sisson 1066 Comment
  CAS-BOT-BC36243  Chrysolepis sempervirens Roxana S. Ferris; Laura Lorraine 1941-8-11 10508 Siskiyou About 7 miles from Medicine Lake on road to Modoc Lave Beds National Monument, Shasta National Forest Comment
  CHSC617  Chrysolepis sempervirens V. Holt 1939-7-1 Siskiyou Mt. Shasta City. 1097 Comment
  UC5453  Chrysolepis sempervirens Milo S. Baker 1893-6 Siskiyou Squaw Valley Mt. Mt. Shasta (s base of Mt Shasta) Comment
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Aug 25 2006
  RSA120851  Chrysolepis sempervirens H. K. Wagnon 1957-8-11 1690 Siskiyou East slope of Mt. Shasta on rd. to Brewer Cr., 3 mi. W of Military Pass Rd. Comment
  RSA167214  Chrysothamnus nauseosus subsp. albicaulis Joseph P. Tracy 1949-9-15 18560 Siskiyou Black Bear Mine, Salmon Mts. Comment
  SD112666  Chrysothamnus viscidiflorus subsp. stenophyllus Darley F. Howe 1964-8-5 3937 Siskiyou 8.2 miles south of Dorris on Highway 97. 1280 Comment
  CAS-BOT-BC100853  Chrysothamnus viscidiflorus subsp. viscidiflorus Delzie Demaree 1959-7-26 41333 Siskiyou on large shelves above Tule Lake 1219 Comment
  CAS-BOT-BC100855  Chrysothamnus viscidiflorus subsp. viscidiflorus S. F. Blake 1941-8-22 16205 Siskiyou in the Lava Park above Hotlum Station, north side of Mt. Shasta 1676 Comment
  JEPS15738  Cicuta douglasii Willis L. Jepson July, 1894 14231 Siskiyou by stage-road n of Sisson (Mount Shasta); Mount Shasta Comment
  HSC19003  Cinna latifolia J. O. Sawyer 1969-8-4 1806 Siskiyou Above Sugar Lake 2134 Comment
  CDA15530  Circaea alpina subsp. pacifica G. F. Hrusa 1998-7-5 14698 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 4.x. Comment
  POM46094  Circaea alpina subsp. pacifica Geo. D. Butler 1910-6-4 1499 Siskiyou Shackleford Creek. Comment
  JEPS24816  Cirsium andersonii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6829 Siskiyou U.S. Forest Service camp ground at Scott Mtn. road summit Scott Mtn. (boundary of Siskiyou and Trinity Cos.) 1646 Comment
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Jan 4 2012
  CAS-BOT-BC285344  Cirsium andersonii E. K. Balls 1949-7-8 13920 Siskiyou Between Callahan and Scott Mountain 1524 Comment
  CAS-BOT-BC284400  Cirsium arvense Alice Eastwood 1912-7-17 1164 Siskiyou Sisson Comment
  CDA1133  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -A Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CAS-BOT-BC278047  Cirsium cymosum John Thomas Howell 1952-6-15 28361 Siskiyou Montague Comment
  CAS-BOT-BC278051  Cirsium cymosum T. C. Fuller 1960-6-29 4644 Siskiyou Scott Mtn. road, 3.6 miles S/Callahan Comment
  UC30780  Cirsium douglasii var. breweri W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sisson Mount Shasta, Sisson Comment
  CAS-BOT-BC285551  Cirsium occidentale var. candidissimum Alice Eastwood 1917-9-2 6668 Siskiyou Shasta Springs Comment
  CAS-BOT-BC285575  Cirsium occidentale var. candidissimum Alice Eastwood 1912-7-20 1256 Siskiyou Hornbrook Comment
  CAS-BOT-BC285521  Cirsium occidentale var. candidissimum Laura M. Lathrop 1903-7-20 s.n. Siskiyou Shasta Retreat Comment
  CAS-BOT-BC285573  Cirsium occidentale var. candidissimum L. E. Smith 1913-7-24 510 Siskiyou Yreka Comment
  CAS-BOT-BC288005  Cirsium occidentale var. candidissimum John Thomas Howell 1952-6-15 28362 Siskiyou Knoll just east of Montague Comment
  HSC77095  Cirsium remotifolium K. T. Stillman 1976-7-30 336 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  CAS-BOT-BC160928  Clarkia amoena subsp. amoena Alice Eastwood; John Thomas Howell 1937-6-26 5069 Siskiyou Somes Bar Comment
  CAS-BOT-BC164162  Clarkia concinna L. B. Kildale 1930-6-1 9695 Siskiyou Salmon River at Forks of Salmon Comment
  CAS-BOT-BC164163  Clarkia concinna Doris K. Kildale 1929-5-26 9202 Siskiyou Hawkins Bar on Salmon River 609 Comment
  CAS-BOT-BC164165  Clarkia concinna Mrs. Dorothy Parker 1961-5-26 874 Siskiyou Dry rocky hillside near Cecilville Comment
  UC54444  Clarkia lassenensis H. M. Hall and E. B. Babcock June, 1903 4098 Siskiyou Shasta Valley Sierra Nevada Mountains, Mount Shasta 1097 Comment
  UC909475  Clarkia rhomboidea J. H. Thomas 1949-6-16 948 Siskiyou 1/2 mi n Beaver Creek Public Camp (5 mi n of junction of Beaver Creek and Klamath River); Klamath National Forest Comment
  HSC64526  Clarkia rhomboidea J. P. Smith, Steve Selva 1970-6-14 3863 Siskiyou Comment
  JEPS82478  Claytonia cordifolia Gilbert Muth 1966-7-8 354 Siskiyou Marble Mt. Wilderness Area; Marble Valley 1792 Comment
  RSA215604  Claytonia cordifolia Gilbert Muth 1969-8-12 1380 Siskiyou Second Valley 2195 Comment
  UC1223247  Claytonia cordifolia Joseph P. Tracy 1951-6-16 19460 Siskiyou n of Siskiyou Mountains summit of crossing (where small stream crosses road); Siskiyou Mountains Comment
  HSC43839  Claytonia exigua subsp. exigua Maralyn O'Meara 1974-5-27 495 Siskiyou 7.4 mi. NE of Ft. Jones on Hwy. 3 1159 Comment
  RSA45343  Claytonia exigua subsp. exigua Dorothy Parker 1947-3-30 s.n. Siskiyou Hartstrand Gulch, east of Scott Valley. 823 Comment
  POM228993  Claytonia parviflora L. C. Wheeler 1935-5-5 3466 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  HSC39741  Claytonia parviflora subsp. parviflora J. O. Sawyer 3 Apr [year missing] 2094 Siskiyou Along Sugar Creek 915 Comment
  RSA238296  Claytonia rubra Frederick W. Oettinger 1969-8-6 1253 Siskiyou Pine Lake Basin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC46057  Claytonia rubra subsp. rubra Maralyn O'Meara 1974-5-25 418 Siskiyou On Rd. 8, ~4.7 mi. W of junction with Hwy. 3 1159 Comment
  UC1408943  Claytonia rubra subsp. rubra Frederick W. Oettinger 1969-7-29 1105 Siskiyou Uncle's Lake Salmon Mountains, Marble Mountain Wilderness Area, English P (vicinity of English Peak, w Siskiyou County) 1859 Comment
  HSC4462  Claytonia sibirica William J. Ferlatte 1966-6-22 109 Siskiyou Josephine Lake Basin 1677 Comment
  HSC23687  Claytonia sibirica J. O. Sawyer 1971-7-15 2424 Siskiyou Along Red Rock Valley Creek 1585 Comment
  HSC4461  Claytonia sibirica William J. Ferlatte 1966-6-23 144 Siskiyou Big Flat, between campground and S Fork of the Salmon River 1524 Comment
  RSA464446  Claytonia sibirica M. B. Dunkle 1944-6-25 9003 Siskiyou Beaver Creek. (Coastal Northern California). 1677 Comment
  CAS-BOT-BC92761  Clematis ligusticifolia W. R. Dudley 1901-8-25 s.n. Siskiyou Jackson Creek. Comment
  UC164235  Clintonia uniflora Geo. D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek Comment
  POM170266  Clintonia uniflora Geo D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek Comment
  CHSC88115  Collinsia grandiflora Jenny Marr 1993-7-1 125 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA237562  Collinsia linearis Frederick W. Oettinger 1968-9-5 705 Siskiyou Near spring half way up trail from English Lake to Diamond Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1898 Comment
  HSC41087  Collinsia parviflora J. O. Sawyer 1970-3-4 2073 Siskiyou N of Idlewild Campground. 762 Comment
  UC54657  Collinsia parviflora H. M. Hall and E. B. Babcock Jun 1903 4703 Siskiyou near Upton (Sierra Nevada Mountains, Mount Shasta); Sierra Nevada Mountains, Mount Shasta 1066 Comment
  SBBG18759  Collinsia rattanii C. B. Hardham 1961-7-2 8056 Siskiyou Salmon Mtn Summit 1828 Comment
  POM43380  Collinsia rattanii Geo. D. Butler 1909-4-25 609 Siskiyou Quartz Valley. Comment
  SBBG6893  Collinsia torreyi var. latifolia H. and M. Dearing 1939-7-2 3807 Siskiyou Salmon Mtn 1828 Comment
  UC1409407  Collinsia torreyi var. latifolia Frederick W. Oettinger 1969-7-11 977 Siskiyou area w of nw end of Hancock Lake (High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness, Salmon Mountains, Western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness 1950 Comment
  HSC91254  Collinsia torreyi var. wrightii Jennifer Whipple 1976-6-16 1012 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  HSC46223  Collomia grandiflora Jennifer Whipple 1978-6-5 2334 Siskiyou Weston Gulch in Scott Valley 854 Comment
  UC643292  Collomia heterophylla W. Bridge Cooke 1940-7-12 15311 Siskiyou in the Box Canyon near Mount Shasta City; Sacramento River 914 Comment
  HSC16937  Collomia linearis R. C. Wunner 1965-6-6 78 Siskiyou Lava Beds N. M., 0.1 mi. on Rd. to Caldwell Ice Cave 1372 Comment
  SBBG30599  Collomia tinctoria D. Myrick 1968-6-25 2023 a Siskiyou Mountain Meadow Ranch, Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  CAS-BOT-BC94908  Collomia tinctoria R. C. Wenk 2005-7-15 202 Siskiyou Trinity Alps, above S Fork of Salmon River, along Yellow Rose Mine Trail 1767 Comment
  JEPS71073  Collomia tracyi B. Wise Neilsen 1936-10-18 Siskiyou 2 mi nw Etna Mt.; Salmon Mt. Comment
  CAS-BOT-BC180416  Comandra umbellata subsp. californica W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klink's Meadow, near Mt. Shasta Comment
  UC618655  Conyza canadensis unknown 1938-7-29 11383 Siskiyou Howard Mount Shasta, Howard 1219 Comment
  UC673558  Corallorhiza maculata Dorothy Tebbe 1929-7-14 115 Siskiyou Mount Eddy Comment
  HSC19042  Corallorhiza mertensiana J. O. Sawyer 1969-7-24 1518 Siskiyou W of Sugar Lake 1890 Comment
  HSC73994  Corallorhiza mertensiana Gail Newton 1980-6-20 520 Siskiyou Near Bald Mtn. 1326 Comment
  RSA237633  Corallorhiza mertensiana Frederick W. Oettinger 1969-7-14 1022 Siskiyou Trail from Charmaine Lake to English Lake; Salmon Mounatins, the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness area 1921 Comment
  JEPS60490  Cordylanthus tenuis subsp. pallescens T. I. Chuang and L. R. Heckard 1969-8-21 6741 Siskiyou nw Mt. Shasta City (sw of Black Butte) 1066 Comment
  CHSC105591  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-4 16210 Siskiyou Old Stagecoach Road, about 0.5 mile north of Forest Service road 41N26, the Eddy Creek Road, on both sides of the road. Label says +/- 33 feet of Lat. and Long. shown. 995 Comment
  SEINET3863430  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson, Dick Brainerd 2010-8-4 16210 Siskiyou Old Stagecoach Road, about 0.5 mile north of Forest Service road 41N26, the Eddy Creek Raod.; 0 996 Comment
  RSA264956  Cordylanthus tenuis subsp. viscidus Gilbert Muth 1975-7-31 6181 Siskiyou Near Joe Creek. Near Seiad Valley. 1317 Comment
  HSC89859  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi, G. Thomas Robbins, T. W. Custer 1954-8-12 4791 Siskiyou Along highway following the Klamath River, 1/2 mi. W of Hamburg 457 Comment
  POM250769  Cordylanthus tenuis subsp. viscidus D. D. Keck 1938-8-8 4863 Siskiyou Scott Mtns., ridge between Mill and Mule Creeks, 3 mi. S.E. of Scott mt. Lodge. 1340 Comment
  POM298036  Cordylanthus tenuis subsp. viscidus A. A. Heller 1918-7-16 13034 Siskiyou Mt. Eddy, west of Sisson. 2134 Comment
  RSA105468  Cornus glabrata Milo S. Baker 1955-6-27 13090 Siskiyou Road Gazelle to Callahan. Comment
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Oct 9 2014
  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
  POM132471  Cornus occidentalis Geo. D. Butler 1910-6-4 1490 Siskiyou Shackleford Creek. Comment
  CAS-BOT-BC210392  Cornus sericea Doris K. Kildale 1928-8-18 6424 Siskiyou North Fork Salmon River at Finley Camp Comment
  HSC26907  Cornus sericea subsp. sericea J. P. Smith, J. O. Sawyer 1971-9-17 4789 Siskiyou Horse Range Creek drainage along road. Comment
  SFV5169  Cornus sericea subsp. sericea B. C. Templeton 1960-6-21 8557 Siskiyou Klamath Mountains 2 miles below the summit of Scott Mountain. 1430 Comment
  HSC19273  Corylus cornuta subsp. californica J. O. Sawyer 1968-7-23 595 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  HSC101716  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-6-25 13266 Siskiyou Along the Oregon Stage Road, south of the bridge with its intersection with Callahan-Gazelle Road. 823 Comment
  CHSC93526  Crepis bakeri Lowell Ahart; John Dittes 2005-6-9 12028 Siskiyou Hill, south of a rock fence, about 100 yards northeast of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CAS-BOT-BC376542  Crepis monticola G. L. Stebbins, Jr.; E. B. Babcock 1936-6-13 1974 Siskiyou East and northeast slope of spur of Rainbow Ridge above Sulloway Creek about 1 1/2 mi. west of Mt. Shasta City 1180 Comment
  POM230913  Crepis monticola E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1936 Siskiyou Grassy old river terrace with small scattered oaks about 8 miles south of Yreka 823 Comment
  JEPS57182  Crepis occidentalis L. R. Heckard 1967-8-13 1693 Siskiyou Mt. Eddy; near summit, s-facing slope 2712 Comment
  CAS-BOT-BC290738  Crepis occidentalis subsp. conjuncta Harley P. Chandler 1901-6-1 1644 Siskiyou North Coast Ranges. Marble Mountain 2438 Comment
  UC1408880  Crepis occidentalis subsp. conjuncta Frederick W. Oettinger 1969-7-15 1031 Siskiyou se-facing slope between English Peak and Bear Meadow (w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1996 Comment
  CAS-BOT-BC290870  Crepis pleurocarpa Doris K. Kildale 1929-8-24 8845 Siskiyou Preston Peak 2133 Comment
  JEPS74514  Crepis pleurocarpa W. J. Ferlatte 1966-8-4 300 Siskiyou Yellow Rose Mine Trinity Alps 1981 Comment
  SEINET10474591  Crepis pleurocarpa Mary Merello 1993-6-22 Merello 698 Siskiyou Shasta National Forest. Along Forest Road 26 to Lake Siskiyou outside of Mt. Shasta City. Mixed conifer forest. Steep, rocky serpentine slopes along Sacramento River. 1270 Comment
  UC455528  Crepis pleurocarpa I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1981 Comment
  CAS-BOT-BC290867  Crepis pleurocarpa G. L. Stebbins, Jr.; J. A. Jenkins 1937-7-19 2438 Siskiyou On Park's Creek 1 mi. below Stewarts Springs 1120 Comment
  HSC43838  Crocidium multicaule Maralyn O'Meara 1974-5-27 494 Siskiyou 7.4 mi. NE of Ft. Jones on Hwy. 3 1159 Comment
  HSC74831  Crypsis schoenoides J. P. Smith, J. O. Sawyer 1978-7-3 10000 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  CHSC97392  Cryptantha ambigua Jenny Marr 2006-6-18 228 Siskiyou Cascade Range High. Plants collected along Hwy. 97. West side of road. 1524 Comment
  RSA0070857  Cryptantha hendersonii E. B. Copeland 1903-7-5 3550 Siskiyou Klamathon. Comment
  POM228969  Cryptantha torreyana L. C. Wheeler 1935-5-26 3531 Siskiyou Yreka Creek, Siskiyou Mts. 915 Comment
  HSC69190  Cryptogramma acrostichoides Maralyn A. Renner 1980-9-1 2699 Siskiyou S side of Devil's Punchbowl 1829 Comment
  RSA211488  Cryptogramma acrostichoides William J. Ferlatte 1966-6-22 118 Siskiyou Josephine Lake basin 1677 Comment
  RSA142617  Cryptogramma cascadensis P. A. Munz 1960-8-22 24192 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  CAS-BOT-BC70535  Cryptogramma cascadensis W. B. C. 1938-8-18 11502 Siskiyou Lower Horse Camp Slopes above Horse Camp 2514 Comment
  CAS-BOT-BC80549  Cupressus bakeri O. V. Matthews 1939-7-3 19 Siskiyou S. W. of Sullivan Mine, Cook - Green Region, 3 mi. S. of Blue Ledge Mine 1219 Comment
  CAS-BOT-BC85604  Cupressus bakeri C. O. Stone 1964-6-6 287 Siskiyou Approximately 100 yards NE of Quarry, Fall river Mills Quad. 1109 Comment
  NY16604  Cupressus bakeri C. B. Wolf 1934-10-9 6170 Siskiyou Siskiyou Mountains, above West Fork of Seiad Creek, 0.75 miles above forks of creek 1158.2 Comment
  NY16609  Cupressus bakeri C. B. Wolf 1934-10-8 6166 Siskiyou Modoc Lava Beds, 1 mile northeast of Timbered Crater on Old Stage Road from Dana to Little Hot Springs Valley 1219.2 Comment
  NY16611  Cupressus bakeri C. B. Wolf 1934-10-8 6167 Siskiyou Modoc Lava Beds, 1 mile northeast of Timbered Crater on Old Stage Road from Dana to Little Hot Springs Valley 1219.2 Comment
  RSA352343  Cupressus bakeri C. B. Wolf 1944-10-30 11481 Siskiyou 1mile NE of Timbered Crater, Modoc Lava Beds on Old Stage Road form Dana to Little Hot Springs Valley 1220 Comment
  UC1043395  Cupressus bakeri P. C. Everett and E. K. Balls 1954-10-13 20276 Siskiyou 7.2 mi ne up creek from Hwy 96 (rd. to Kangaroo Mt.); Seiad Creek 822 Comment
  NY1293  Cupressus bakeri subsp. matthewsii C. B. Wolf 1934-10-9 6169 Siskiyou Siskiyou Mts., above W fork of Seiad Creek, 0.75 mi above forks of creek. 1158.2 Comment
  UC879557  Cuscuta occidentalis W. Bridge Cooke 1940-6-20 15144 Siskiyou w of Pacific Highway (in the vicinity along the Klamath River Highway) Comment
  HSC78073  Cyclachaena xanthiifolia R. Pederson, G. Pederson 1979-8-15 Siskiyou Tulelake; Lower Klamath National Wildlife Refuge; on E side of the road near entrance to tour route 1238 Comment
  HSC57389  Cycladenia humilis G. L. Clifton, Griswold 1979-7-26 10122 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  UCR179175  Cymopterus terebinthinus var. californicus Robert E. Preston 2002-7-12 1908 Siskiyou Rainbow Mountain and Vicinity, Klamath National Forest, south slope of Rainbow Mtn. 1790 Comment
  SD104868  Cynoglossum occidentale Darley Howe 1979-6-26 5103 Siskiyou Military Pass Road, 19 miles east of Highway 97. 1769 Comment
  POM63495  Cynoglossum occidentale Geo. D. Butler 1910-6-4 1497 Siskiyou Shackleford Creek Comment
  UCD119151  Cynoglossum officinale T. C. Fuller 1967-6-27 16034 Siskiyou W. side of rd. to McCloud Reservoir, 0.3 mi. s. of McCloud. Comment
  CDA30916  Cyperus odoratus M. Beyers, G. F. Hrusa 2010-8-18 697 Siskiyou Highway 96; Sluice Box Klamath River Access. 556 Comment
  UC4445  Cypripedium montanum C. B. Bradley 1879-1 Siskiyou Comment
  CAS-BOT-BC70714  Cystopteris fragilis Roxana S. Ferris; Laura Lorraine 1948-6-12 11765 Siskiyou About 6 miles from Etna on forks of Salmon Road 1676 Comment
  HSC50061  Cystopteris fragilis Terry Griswold 1979-7-24 9129 Siskiyou Near Hemlock Lake, close to the town of Macdoel 1988 Comment
  UC1408835  Cystopteris fragilis Frederick W. Oettinger 1969-7-9 944 Siskiyou nw of Upper English Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1798 Comment
  UC1478233  Cystopteris fragilis G. D. Barbe, J. T. Howell, and T. C. Fuller 1980-4-29 2637 Siskiyou 3.2 km e of Callahan (ca. 150 m e of Highway 3 bridge, beside Callahan/Gazelle Rd) 976 Comment
  UC185190  Cystopteris fragilis Geo. D. Butler 1910-7-9 1694 Siskiyou Shackleford Creek 1219 Comment
  JEPS82451  Cystopteris fragilis Gilbert Muth 1966-7-17 404 Siskiyou trail to Lookout (Marble Mt. Wilderness Area); Marble Mountain Wilderness Area 1828 Comment
  JEPS83996  Danthonia intermedia L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6358 Siskiyou ca 1/2 mi se Red Butte (ca 7 mi nne of Seiad Valley, sw of Cook and Green Pass) 1730 Comment
  HSC44949  Danthonia unispicata J. O. Sawyer 1978-6-17 3233 Siskiyou Marble Mtn. Wilderness Area, slopes E of Gem Lake 2073 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
  CHSC30181  Darlingtonia californica M. S. Taylor 1980-7-8 3102 Siskiyou On nw side of Castle Lake, along edge of lake, in ... Field redacted by CHSC, contact the data manager for more information 1615 Comment
  RSA422668  Darlingtonia californica Christopher Davidson 1975-6-5 2676 Siskiyou 3.3 miles from gate on special service road branching to SE of road from Gazelle to Callahan 9.3 miles W of Gazelle; Klamath Nat'l Forest. 1623 Comment
  UC1483479  Darlingtonia californica Maralyn A. Renner 1980-8-6 2294 Siskiyou Cracker Meadow Klamath National Forest, Preston Peak Quad. 1554 Comment
  RSA34341  Darmera peltata Carl B. Wolf 1927-8-27 1140 Siskiyou Mouth of Crawford Creek, Klamath River. Comment
  CAS-BOT-BC141829  Dasiphora fruticosa John Thomas Howell 1939-8-8 15172 Siskiyou Black Mt., Marble Mts. Comment
  SEINET1004226  Delphinium depauperatum Mark Fishbein, Lane Greer 2006-1 5883 Siskiyou Payness Creek, at road crossing below Payness Springs, about 2 mi southeast of Medicine Lake. 1975 Comment
  HSC69421  Delphinium glaucum John Palmer 1980-8-13 772 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  HSC734  Delphinium nuttallianum William J. Ferlatte 1966-6-22 88 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  HSC76677  Delphinium nuttallianum K. T. Stillman 1976-7-23 301 Siskiyou Marble Mtn. Wilderness Area 2012 Comment
  HSC77045  Delphinium nuttallianum K. T. Stillman 1976-6-25 28 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  SBBG30506  Delphinium nuttallianum D. Myrick 1968-6-24 2000 Siskiyou Mountain Meadow Ranch, Big Flat; Coffee Crk 1524 Comment
  UC1409278  Delphinium nuttallianum Frederick W. Oettinger 1969-7-10 955 Siskiyou base of cliff se Upper English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1950 Comment
  CAS-BOT-BC118065  Delphinium nuttallianum Roxana S. Ferris; Laura Lorraine 1948-6-12 11885 Siskiyou About 5.5 miles from Etna on forks of the Salmon Road Comment
  CAS-BOT-BC94478  Delphinium nuttallianum R. C. Wenk 2005-7-19 347 Siskiyou border between Siskiyou and Trinity Counties, National Forest Road 17, parking lot where Pacific Crest Trail crosses 2090 Comment
  CDA24254  Delphinium nuttallianum D. Osterhandt, Don Shaw 1978-3-31 Siskiyou Between Forks of Salmon and Somes Bar. 0 Comment
  RSA49961  Delphinium nuttallianum E. K. Balls 1949-7-8 13899 Siskiyou Trail to Carmen Lake from Scott Mountain Camp, Scott Mt. 1707 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
  HSC86445  Deschampsia cespitosa D. K. Imper 1989-7-21 Siskiyou 8 mi. E of Somes Bar. 1372 Comment
  UCD21467  Deschampsia cespitosa subsp. cespitosa Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1207 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along shores of Gray Rock Lake. 1800 Comment
  UCD61375  Deschampsia cespitosa subsp. cespitosa Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1207 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along shores of Gray Rock Lake. 1800 Comment
  SEINET10835347  Deschampsia cespitosa subsp. cespitosa Lawrence P. Janeway 1983-1 Janeway 545 Siskiyou Preston Peak Quad (15') T18N R6E S20 SW1/4. Siskiyou Mountains: at Poker Flat, a meadow in a fir forest. In upper portion of the meadow; wet. 1524 Comment
  HSC100336  Deschampsia danthonioides J. P. Smith 2011-7-15 13305 Siskiyou Along the road to Bray, .8 mi. from its junction with Tennant Road. 1419 Comment
  UCD62957  Deschampsia danthonioides Robert E. Preston 2002-6-20 1852 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge. 1968 Comment
  HSC102654  Deschampsia danthonioides J. P. Smith 2009-6-1 12615 Siskiyou Road to Tenant. Comment
  CAS-BOT-BC201942  Deschampsia elongata Lewis S. Rose 1945-6-18 45122 Siskiyou Horse Creek & Klamath River 502 Comment
  CAS-BOT-BC201943  Deschampsia elongata A. A. Heller 1915-7-18 12134 Siskiyou Metcalf's ranch, base of Mt. Eddy Comment
  CAS-BOT-BC201945  Deschampsia elongata Melissa A. Berry 1957-7-7 s.n. Siskiyou Cabin Meadow, Gazelle-Callahan Road vicinity 1828 Comment
  HSC92277  Deschampsia elongata Jennifer Whipple 1976-7-2 1259 Siskiyou SW of Dobkins Lake, along the drainage to the lake. 2134 Comment
  RSA238399  Deschampsia elongata Frederick W. Oettinger 1969-8-22 1502 Siskiyou South side of Horse's Hole near Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  UC204770  Deschampsia elongata Geo. D. Butler 1910-7-13 1769 Siskiyou Shackleford Creek 1219 Comment
  JEPS53412  Descurainia incisa subsp. incisa Geo. D. Butler 1908-8-4 126 Siskiyou Head of Shackleford Creek 1676 Comment
  HSC6710  Descurainia longipedicellata R. C. Wunner 1965-8-23 474 Siskiyou Lava Beds National Monument, Lava Reef burn near NW dump 1220 Comment
  CAS-BOT-BC43519  Descurainia sophia A. A. Heller 1916-7-20 12463 Siskiyou Metcalf's Ranch, northeast base of Mount Eddy. 1188 Comment
  CAS-BOT-BC43523  Descurainia sophia L. S. Smith 1912-7-1 s.n. Siskiyou Yreka. Comment
  UCD114786  Descurainia sophia A. A. Heller 1916-7-20 12463 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy in openings in the forest. 1188 Comment
  CDA17140  Dicentra formosa subsp. oregana G. F. Hrusa 2001-6-6 15854 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
  HSC26101  Dicentra pauciflora J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5684 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  CAS-BOT-BC500907  Dichelostemma capitatum Geo. D. Butler 1910-4-17 1192 Siskiyou Near Yreka 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
  UC3291  Dichelostemma ida-maia C. B. Bradley 1879-1 Siskiyou Comment
  CAS-BOT-BC500991  Dichelostemma multiflorum John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53568 Siskiyou Yreka 822 Comment
  SEINET7040105  Dichelostemma multiflorum A. G. Vestal 1963-6-1 s.n. Siskiyou 2.8 miles north of Montague. Hawkinsville Quad. UTM Zone 10, 539617mE, 4625157mN. Comment
  CAS-BOT-BC291010  Dieteria canescens var. shastensis A. A. Heller 1914-8-26 11719 Siskiyou Weed 1524 Comment
  UC179691  Dieteria canescens var. shastensis A. A. Heller 1914-8-26 11719 Siskiyou in a field at Weed 1524 Comment
  CDA41641  Digitalis purpurea G. F. Hrusa 1998-7-5 14691 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. at mile 5.x. Sheet 2 of 2 Comment
  CAS-BOT-BC209022  Digitaria sanguinalis Dorothy Parker 1949-8-21 73 Siskiyou YeCanahue(?) Gulch, Scott Valley 914 Comment
  CAS-BOT-BC153731  Diplacus nanus Doris K. Kildale 1928-7-4 5481 Siskiyou Summit of divide between Sawyers Bar & Etna Comment
  UCD137482  Dipsacus M. V. Maxwell 1958-9-1 s.n. Siskiyou Fort Jones. Comment
  CDA6687  Dipsacus fullonum T. C. Fuller 1959-7-9 2911 Siskiyou West of Highway 99, north limits Mt. Shasta City. 0 Comment
  HSC68034  Dipsacus fullonum J. P. Smith, Steve Selva 1970-7-17 4433 Siskiyou Tyler Gulch Comment
  RSA47660  Disporum hookeri var. hookeri Roxana S. Ferris, Laura Lorraine 11750 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  RSA520564  Disporum hookeri var. hookeri Michael A. Hanson 1990-5-22 81 Siskiyou On Indian Creek Road, 14.3 miles (23 km) NW of the intersection of Indian Creek Road and Hwy 96 (Happy Camp). Comment
  CHSC91248  Distichlis spicata Lowell Ahart; John Dittes 2005-6-9 12004 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CDA31684  Distichlis spicata var. stricta J. Schieber 1967-8-23 Siskiyou Westside Grocery, Stateline Rd., Tukelake area. 0 Comment
  HSC19084  Dodecatheon alpinum J. O. Sawyer 1969-8-5 1738 Siskiyou W of Little Duck Lake 2073 Comment
  RSA238734  Dodecatheon alpinum Frederick W. Oettinger 1969-7-15 1029 Siskiyou On wet, cold, meadow at 'Bear Meadow' spring in saturated humus-located mid-way as the crow flies between Tom Taylor cabin and English Peak summit., The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  HSC63073  Dodecatheon hendersonii David Wheeler 1979-4-1 14 Siskiyou Haypress Meadows turnoff along the Salmon River, 1/4 mi. from S.R. 96 Comment
  HSC30792  Dodecatheon jeffreyi Melinda F. Denton 1973-6-30 2939 Siskiyou Klamath National Forest, Young's Valley, 5 mi. S of Sanger Lake at base of El Capitan 1409 Comment
  UC166132  Draba nemorosa Geo. D. Butler 1910-4-10 1162 Siskiyou near Yreka; near Yreka Comment
  CAS-BOT-BC41416  Draba verna Dorothy Tebbe 1930-3-28 74 Siskiyou Near Weed. Comment
  OBI15089  Draba verna J. Applegarth 1970-4-11 s.n. Siskiyou 914 Comment
  RSA0011654  Drosera anglica D. V. Hemphill 1972-8-9 s.n. Siskiyou Isinglass Lake. 1982 Comment
  RSA0011661  Drosera rotundifolia Frederick W. Oettinger, Robert F. Thorne 1969-8-8 1300 Siskiyou West above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC42906  Drymocallis glandulosa J. O. Sawyer, Ken Stillman 1976-5-28 2724 Siskiyou Along Rd. W of Sawyers Bar. 610 Comment
  HSC68397  Drymocallis glandulosa Maralyn A. Renner 1980-6-26 1253 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC74867  Drymocallis glandulosa J. P. Smith, Jennifer Whipple 1978-7-2 9987 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  HSC31284  Drymocallis glandulosa var. reflexa Frederick W. Oettinger 1968-8-15 526 Siskiyou Marble Mountains Wilderness Area, High Lakes Basins, E side of Hancock Lake 1921 Comment
  UC54354  Drymocallis hansenii H. M. Hall and E. B. Babcock June, 1903 4136 Siskiyou Pole Canyon Sierra Nevada Mountains, Pole Canyon (north-eastern Shasta County) 1463 Comment
  CAS-BOT-BC159290  Drymocallis lactea var. lactea K. T. Stillman 1976-9-9 476 Siskiyou N & NE & E side of Black Mtn., Marble Mountain Wilderness Area Comment
  POM120352  Dryopteris arguta Geo D. Butler 1910-7-8 1675 Siskiyou Shackleford Creek. 1220 Comment
  HSC26759  Dysphania botrys J. P. Smith, J. O. Sawyer 1971-9-18 4821 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  CAS-BOT-BC113722  Eleocharis acicularis Louis C. Wheeler 1934-6-29 2827 Siskiyou Mucky, sunny meadow in Soda Creek, Sterling Mt. 1280 Comment
  CAS-BOT-BC113723  Eleocharis acicularis Louis C. Wheeler 1934-6-29 2827 Siskiyou Mucky, sunny meadow in Soda Creek, Sterling Mt. 1280 Comment
  RSA238954  Eleocharis acicularis var. acicularis Frederick W. Oettinger 1968-9-3 673 Siskiyou North side of Horse Range Lake. Salmon Mountains, the High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area 1822 Comment
  JEPS19409  Eleocharis bella B. C. Goldsmith 1916-9-9 22 Siskiyou Klamath Hot Springs Comment
  RSA577567  Eleocharis bella L. C. Wheeler 1935-7-20 3677 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  CHSC91241  Eleocharis parishii Lowell Ahart; John Dittes 2005-6-10 12096 Siskiyou At 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
  POM264766  Eleocharis parishii L. C. Wheeler 1934-6-29 2826 Siskiyou Soda Creek. Sterling Mountain. Siskiyou Mountains. 1280 Comment
  SEINET7587040 Image available Eleocharis quinqueflora Frederick W. Oettinger 1969-8-19 1453 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. Between David Mt and Abbotts Lake Basin. 1905 Comment
  CAS-BOT-BC227922  Elymus elymoides A. A. Heller 1905-6-19 8071 Siskiyou Grenada Station Comment
  CAS-BOT-BC227923  Elymus elymoides L. E. Smith 1913-6-25 393 Siskiyou Montague Comment
  CAS-BOT-BC227925  Elymus elymoides Wm. Bridge Cooke 1938-7-28 11370 Siskiyou Mount Shasta. North Ridges Comment
  HSC21979  Elymus elymoides var. elymoides J. O. Sawyer 1969-7-9 1206 Siskiyou Near C.C.C. road, N of Sugar Creek 1433 Comment
  HSC76897  Elymus glaucus K. T. Stillman 1976-9-9 491 Siskiyou Marble Mtn. Wilderness Area, trail from jump off to Paradise Lake 1951 Comment
  UC197187  Elymus glaucus Geo. D. Butler 1909-6-13 834 Siskiyou Moffitt Creek Moffitt Creek Comment
  UC618640  Elymus glaucus W. Bridge Cooke 1938-7-15 11176 Siskiyou Bear Springs Mount Shasta (near spring creeks) Comment
  HSC31100  Elymus glaucus subsp. glaucus Frederick W. Oettinger 1968-9-1 638 Siskiyou Marble Mtn. Wilderness Area, SE side of Abbot's Lake 1723 Comment
  JEPS72940  Elymus glaucus subsp. jepsonii W. L. Jepson 1940-6-28 20054 Siskiyou McCloud 975 Comment
  HSC103029  Elymus hispidus J. P. Smith 2014-6-7 13887 Siskiyou Yreka 844 Comment
  CAS-BOT-BC204305  Elymus trachycaulus subsp. trachycaulus L. P. Janeway 1983-8-26 593 Siskiyou Siskiyou Mountains; at Poker Flat 1524 Comment
  CDA15519  Elytrigia intermedia subsp. intermedia G. F. Hrusa 1998-7-5 14687 Siskiyou Siskiyou Mountains; Bear Creek Rd. +- 1/2 mi. N of Hwy 96 and 10 mi. SW of Happy Camp. Clumping perennial on roadside. Open dry site. Comment
  SEINET3149797  Epilobium adenocaulon G. D. Butler 1910-6-22 1598 Siskiyou Ireka Creek Comment
  SEINET6635547 Image available Epilobium angustifolium subsp. circumvagum A. A. Heller 1916-1 12434 Siskiyou near Black Butte N of Sisson 1128 Comment
  RSA144782  Epilobium angustifolium subsp. circumvagum J. W. MacSwain 1959-8-10 59 -149 Siskiyou West of McCloud Comment
  JEPS82440  Epilobium brachycarpum Gilbert Muth 1946-7-22 441 Siskiyou Marble Rim Marble Mt. Wilderness Area 2194 Comment
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Jan 17 2015
  UC1483446  Epilobium brachycarpum J. Sawyer and J. Cole 1980-7-22 3964 Siskiyou nw slopes of Cedar Mt. Klamath National Forest, Bray Quad. 1524 Comment
  JEPS121600  Epilobium ciliatum Kendra Sikes 2011-9-15 Siskiyou Tamarack Flat, north of Mt. Eddy. Gently sloping wet meadow on ultramafic soil; W aspect. South China Mountain quadrangle. TF1_A Comment
  HSC93865  Epilobium ciliatum subsp. ciliatum Jennifer Whipple 1977-8-6 2242 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  HSC78327  Epilobium ciliatum subsp. glandulosum L. P. Janeway 1983-8-6 507 Siskiyou Poker Flat, upper edge of NE side of meadow 1524 Comment
  POM251087  Epilobium ciliatum subsp. glandulosum W. Bridge Cooke 1938-8-19 11530 Siskiyou Bear Springs, Mount Shasta 1524 Comment
  UC1409433  Epilobium ciliatum subsp. glandulosum Frederick W. Oettinger 1969-8-22 1493 Siskiyou n side Horse's Hole (near Horse Range Lake, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  UC61667  Epilobium densiflorum Geo. B. Grant Sept. 1902 5078 Siskiyou Sisson Mt. Shasta 914 Comment
  UC454594  Epilobium densiflorum I. J. Condit 1911-7-13 Siskiyou along S.P.R.R. Dunsmuir Comment
  RSA50228  Epilobium glaberrimum subsp. glaberrimum E. K. Balls 1949-7-9 13936 Siskiyou 8.3 miles from Etna on road to Sawyer s Bar. 1006 Comment
  JEPS82523  Epilobium hallianum Gilbert Muth 1966-8-1 482 Siskiyou Marble Valley horse pasture Marble Mt. Wilderness Area 1792 Comment
  HSC29171  Epilobium lactiflorum Frederick W. Oettinger 1969-9-2 1595 Siskiyou Marble Mtn. Wilderness Area, N side of English Peak 2165 Comment
  RSA237387  Epilobium lactiflorum Frederick W. Oettinger 1968-8-4 388 Siskiyou Trail N of Crapo Peak ridge. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2195 Comment
  HSC61783  Epilobium luteum Ruby Van Deventer Siskiyou Poker Flat 1585 Comment
  RSA139178  Epilobium luteum R. C. Bacigalupi, Constance, Heckard 1960-7-20 7450 Siskiyou Poker Flat, headwaters of the West Branck of Indian Creek; Siskiyou Mountains, close to Del Norte Co. line 1555 Comment
  HSC44948  Epilobium minutum J. O. Sawyer 1978-6-17 3235 Siskiyou Marble Mtn. Wilderness Area, slopes E of Gem Lake 2073 Comment
  HSC69700  Epilobium minutum Maralyn A. Renner 1980-6-26 1266 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  UC1122538  Epilobium minutum M. H. Mitchell 1936-5-22 Siskiyou Black Crater Modoc Lava Beds Natl. Monument, Dorris Quadrangle Comment
  HSC16317  Epilobium minutum R. C. Wunner 1965-7-9 363 Siskiyou 60 ft. on Black Crater Trail from jct. of Hardin Butte Trail Comment
  RSA237397  Epilobium minutum Frederick W. Oettinger 1969-7-11 981 Siskiyou Little Medicine Mountain, north of Hancock Lake. Salmon Mtns. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  RSA458713  Epilobium minutum J. P. Smith 1973-5-5 6451 Siskiyou Trail to the Siskiyou cypress stand off the Cook and Green Pass road. Comment
  CAS-BOT-BC94899  Epilobium siskiyouense R. C. Wenk 2008-7-24 933 Siskiyou Kangaroo Lake, S of Gazelle-Callahan Road, below top of ridge at SE end of lake 1965 Comment
  HSC65267  Epilobium siskiyouense Rich White 1977-7-21 138 Siskiyou N slope of Preston Peak 1799 Comment
  HSC97386  Epipactis gigantea A. Montalvo, J. D. Ackerman 1974-7-2 355 Siskiyou Along road to Middle Fork Sacramento River and Toad Lake. West of Mt. Shasta City Comment
  SFV12226  Equisetum arvense E. L. Smith 1967-5-22 s. n. Siskiyou City of Mount Shasta. Swampy area by railroad tracks. 1086 Comment
  CAS-BOT-BC204510  Eragrostis cilianensis Dorothy Parker 1948-8-24 86 Siskiyou Along the road in Plowman's Valley 1188 Comment
  CAS-BOT-BC204622  Eragrostis mexicana subsp. virescens Geo. D. Butler 1909-10-3 869 Siskiyou Near Yreka Comment
  CAS-BOT-BC204623  Eragrostis mexicana subsp. virescens Louis C. Wheeler 1934-10-6 3314 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  CAS-BOT-BC204625  Eragrostis mexicana subsp. virescens R. E. Frenkel 1964-10-2 883 Siskiyou On Everitt Memorial Hwy., 1.0 mile north of McCloud River RR crossing, near Mount Shasta 1219 Comment
  HSC77115  Eremogone congesta K. T. Stillman 1976-6-25 94 Siskiyou Marble Mtn. Wilderness Area, between Marble Gap and Elk Valley Trail Comment
  CAS-BOT-BC168850  Eremogone congesta var. congesta Doris K. Kildale 1929-7-20 8583 Siskiyou East spur of Preston Peak above Rockefeller Lake 2133 Comment
  CAS-BOT-BC286699  Ericameria bloomeri S. Cooper Smith 1942-10-11 42 - 1 Siskiyou Shasta National Forest. On #99 Highway at Black Butte 1188 Comment
  CAS-BOT-BC286710  Ericameria bloomeri Elmer I. Applegate 1914-8-26 11722 Siskiyou At Weed 1066 Comment
  CDA4624  Ericameria bloomeri Eldon Paddock, A. Gilbert 1979-8-28 Siskiyou Snowmans Summit, Highway 89 south of Mount Shasta, Siskiyou County. Comment
  OBI5766  Ericameria bloomeri Carl B. Wolf 1931-9-2 5766 Siskiyou On road to McCloud, 1/2 mi above jctn with Pacific hwy 1097 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
  UCD35437  Ericameria nauseosa Beecher Crampton 1956-8-21 3842 Siskiyou Gravelly and stony bench above the Sacramento River, just below the junction of the middle with the south Fork. 1112 Comment
  CAS-BOT-BC298252  Ericameria nauseosa var. oreophila Alice Eastwood 1922-10-23 11557 Siskiyou Yreka Comment
  CAS-BOT-BC298253  Ericameria nauseosa var. oreophila Peter H. Raven 1956-9-5 10464 Siskiyou North Fork of the Sacramento River 1828 Comment
  SEINET8079148 Image available Ericameria nauseosa var. oreophila G. D. Butler 1910-8-15 1739 Siskiyou Shasta Valley Comment
  CAS-BOT-BC294304  Ericameria nauseosa var. speciosa E. B. Copeland 1903-10-10 3785 Siskiyou Mt. Eddy 2225 Comment
  CAS-BOT-BC293505  Erigeron aliceae Doris K. Kildale 1928-8-20 6616 Siskiyou Hancock Lookout, on trail to Marble Mt., B.M. 2151 Comment
  HSC58865  Erigeron cervinus Marvin Butler 1971-7-13 120 Siskiyou Near Copper Creek, close to town of Cave Junction 1464 Comment
  JEPS75970  Erigeron cervinus William J. Ferlatte 1974-7-13 1514 Siskiyou S. Fork Salmon River W of Big Flat; Trinity Alps 1432 Comment
  CHSC71281  Erigeron chrysopsidis var. austiniae Vernon H. Oswald; Lowell Ahart 1998-6-11 9214 Siskiyou Klamath NF boundary on Old State Hwy. 1.5 mi south of the RR crossing south of Mount Hebron. 1295 Comment
  HSC5512  Erigeron divergens M. S. Baker 1898-7-12 806 Siskiyou The Berch Fall River Valley Comment
  POM253147  Erigeron elegantulus A. A. Heller 1938-7-13 s.n. Siskiyou Border of meadows just south of Bray. 1402 Comment
  SEINET9332119  Erigeron filifolius Unknown 2009-5-31 Siskiyou High elevation, semi-arid desert ecosystem; native species; collected at Lava Beds National Monument, directly South of Tulelake, CA. Comment
  POM357595  Erigeron foliosus var. foliosus M. B. Dunkle 1945-07 9244 Siskiyou Klamath National Forest; Marble Mts. Comment
  HSC25661  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-4 1823 Siskiyou Above Sugar Lake 2134 Comment
  HSC72381  Erigeron greenei J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8965 Siskiyou 1/2 mile N of Siskiyou County line on Hwy. 3 Comment
  HSC68173  Erigeron inornatus var. inornatus J. P. Smith, J. O. Sawyer 1972-9-12 5776 Siskiyou Scott Mtn., slopes E of Big Carmen Lake 1982 Comment
  RSA238782  Erigeron inornatus var. inornatus Frederick W. Oettinger 1969-8-12 1348 Siskiyou Along the trail above 'Willow Springs' (between Abbotts Upper Cabin and English Lake); High lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area. Salmon Mountains 1677 Comment
  RSA0030731  Erigeron inornatus var. viscidulus L. C. Wheeler 1934-8-24 3219 Siskiyou Trapper Creek. 1860 Comment
  JEPS41368  Erigeron philadelphicus var. philadelphicus Geo. D. Butler 1908-7-20 326 Siskiyou Humbug Creek Comment
  CAS-BOT-BC224144  Eriodictyon californicum Carl B. Wolf 1927-8-26 1001 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CDA34233  Eriodictyon californicum Jim Rea 2010-7-6 PDR# 1414046 Siskiyou Yreka, Quail Run near Schulmeyer Road. 0 Comment
  HSC69010  Eriogonum compositum Maralyn A. Renner 1980-7-24 2033 Siskiyou Lily Pad Lake 1768 Comment
  UC635009  Eriogonum compositum var. compositum H. L. Mason 1929-5-18 5327 Siskiyou hills along Shasta Creek Canyon Shasta Creek Canyon Comment
  UC634601  Eriogonum compositum var. compositum Mable Ruttle 1927-6-5 Siskiyou s slopes of Siskiyou Mts. Siskiyou Mts. Comment
  JEPS98387  Eriogonum congdonii Vernon H. Oswald 2000-8-28 9958 Siskiyou Rock Fence Lake Road (40N18) 0.6 mi from its jct. with Kangaroo Lake Road 1737 Comment
  RSA215596  Eriogonum douglasii var. douglasii Gilbert Muth 1969-8-7 1267 Siskiyou On east side of Boulder Peak Ridge. 2470 Comment
  JEPS24036  Eriogonum elatum var. elatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6900 Siskiyou Poker Flat Siskiyou Mountains, Poker Flat 1536 Comment
  CAS-BOT-BC255761  Eriogonum elatum var. villosum Dorothy Parker 1948-8-5 172 Siskiyou Plowman's Valley, e. fork of Scott River 1188 Comment
  UC164079  Eriogonum elatum var. villosum Geo. D. Butler 1910-6-26 1606 Siskiyou near Yreka; ; near Yreka, Siskiyou Co. Comment
  CAS-BOT-BC261216  Eriogonum hirtellum James L. Reveal; Darin S. Reveal 1978-8-9 4810 a Siskiyou Along the dirt road from near Happy Camp to Baldy Mountain Lookout (USFS #17N11), 0.5 mile south of the junction of 17N23 near the head of Doolittle Creek 1280 Comment
  CAS-BOT-BC263654  Eriogonum luteolum var. luteolum Mrs. H. C. Cantelow 1938-10-25 s.n. Siskiyou About 16 miles NW of Yreka on Hy. #96 Comment
  LA206908  Eriogonum luteolum var. luteolum Louis C. Wheeler; 1934-6-28 2811 Siskiyou Siskiyou Mountains, Beaver Creek at West Fork 701 Comment
  HSC81670  Eriogonum marifolium Thomas W. Nelson, Jane P. Nelson 1980-7-17 6080 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  HSC86628  Eriogonum marifolium D. K. Imper Jun 1987 Siskiyou 8 mi. E of the town of Mt. Shasta 1829 Comment
  SD23788  Eriogonum marifolium Wm. Bridge Cooke 1938-8-21 11543 Siskiyou Mt. Shasta, lava flats 2438 Comment
  SEINET3160022  Eriogonum marifolium G. B. Grant 442 Siskiyou Mt. Shasta Comment
  UC6357  Eriogonum marifolium Wm. H. Brewer 1862-9-13 1396 Siskiyou Mt. Shasta 2133 Comment
  UC72691  Eriogonum marifolium Milo S. Baker August, 1897 Siskiyou top of Medicine Lake Mts. Medicine Lake Mts. 3048 Comment
  UC849523  Eriogonum marifolium Alice Eastwood 1912-9-1 2072 Siskiyou Mount Shasta Comment
  CAS-BOT-BC263190  Eriogonum marifolium var. cupulatum A. A. Heller 1922-7-15 13694 Siskiyou At Medicine Lake 2133 Comment
  CAS-BOT-BC257776  Eriogonum marifolium var. marifolium R. C. Wenk 2008-7-23 904 Siskiyou Southwest side of Mount Shasta, trail from Bunny Flat (6950 ft) to Sierra Club Cabin above Avalanche Gulch (7600 ft) Comment
  CHSC1326  Eriogonum marifolium var. marifolium M. Yoder 1941-7-21 Siskiyou Castle Lake. 1981 Comment
  CHSC9496  Eriogonum marifolium var. marifolium J. F. Goodwin 1971-7-3 127 Siskiyou West side of road, in open area, 0.3 mi south of Mt. Shasta Ski Bowl area. 2438 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
  CAS-BOT-BC261671  Eriogonum nudum var. nudum Reed C. Rollins; T. S. Chambers 1938-8-15 2723 Siskiyou 3 miles south of Weed 914 Comment
  HSC19506  Eriogonum nudum var. nudum J. O. Sawyer 1969-9-12 2005 Siskiyou Hanging valley N of Wildcat Peak 2012 Comment
  HSC43012  Eriogonum nudum var. nudum J. P. Smith 1973-5-5 6561 Siskiyou Scott Bar along the Scott River Comment
  SEINET7064425  Eriogonum nudum var. nudum A. G. Vestal 1955-5-16 s.n. Siskiyou Serpentine ca. 6.2 miles northwest of weed. (NAD83/WGS84). UTM Zone 10, 543207mE, 4591515mN. 902 Comment
  CAS-BOT-BC261623  Eriogonum nudum var. nudum Gilbert Muth 1965-8-10 s.n. Siskiyou Through Marble Valley & ridges Comment
  HSC30485  Eriogonum nudum var. nudum Frederick W. Oettinger 1968-8-16 532 Siskiyou Marble Mtn. Wilderness Area, summit of Red Hill N of Hancock Lake 2088 Comment
  HSC78317  Eriogonum nudum var. nudum L. P. Janeway 1983-8-28 643 Siskiyou Poker Flat, dry NE edge of lower portion of meadow 1524 Comment
  JEPS83897  Eriogonum nudum var. nudum Wayne Roderick July 1976 Siskiyou roadcut of s side Cook and Green Pass; Siskiyou Mountains Comment
  RSA495516  Eriogonum nudum var. nudum Elaine Joyal, D. Mehlman 1988-6-25 1279 Siskiyou Happy Camp - Takilma road at turn-off to Bolan Lake 1524 Comment
  CAS-BOT-BC272488  Eriogonum nudum var. pubiflorum Geo. D. Butler 1908-7-5 213 Siskiyou Near Yreka Comment
  CAS-BOT-BC272499  Eriogonum nudum var. pubiflorum Elmer I. Applegate 1935-6-11 9501 Siskiyou Upper Ice Cave area, Lava Beds National Monument Comment
  RSA66347  Eriogonum nudum var. pubiflorum F. W. Peirson 1923-7-19 4209 Siskiyou Whitney Creek, Mt. Shasta. Comment
  UC164237  Eriogonum nudum var. pubiflorum Geo. D. Butler 1910-6-26 1605 Siskiyou near Yreka Comment
  CAS-BOT-BC272468  Eriogonum nudum var. pubiflorum A. A. Heller 1927-8-2 14443 Siskiyou About three miles south of Yreka Comment
  UC1299708  Eriogonum ovalifolium var. purpureum Freed W. Hoffman 1948-7-12 2616 Siskiyou 2 mi w junction of Little Shasta road with Mt. Hebron road Comment
  CHSC102612  Eriogonum pyrolifolium L. P. Janeway 2009-8-3 9882 Siskiyou High Cascade Range. Mt. Shasta, east-northeast slope 2.3 air km southwest of Brewer Creek Trailhead; about 0.3 km south of southwest of Brewer Creek Trailhead; about 0.3 km south of Brewer Creek. 2560 Comment
  UC85678  Eriogonum pyrolifolium J. W. Congdon 1900-8-13 Siskiyou Mt. Shasta Comment
  SD23790  Eriogonum pyrolifolium var. pyrolifolium William Bridge Cooke 1938-8-18 11495 Siskiyou Mt. Shasta, lava slopes 2514 Comment
  RSA423132  Eriogonum sphaerocephalum Louis C. Wheeler 1934-9-19 3282 Siskiyou Hot dry south slope. Oak Knoll Ranger Station. Klamath River. 671 Comment
  CAS-BOT-BC271963  Eriogonum sphaerocephalum var. halimioides M. K. Curran 1887-7-1 s.n. Siskiyou Gazelle Comment
  CAS-BOT-BC263396  Eriogonum strictum var. proliferum G. J. Muth 1969-8-6 1194 Siskiyou Boulder Peak 2529 Comment
  CAS-BOT-BC267951  Eriogonum umbellatum Geo. D. Butler 1910-6-19 1580 Siskiyou Goosenest foothills 1524 Comment
  CAS-BOT-BC267948  Eriogonum umbellatum Dorothy Parker 1948-7-11 107 Siskiyou Upper Shovel Creek near Beswick 1011 Comment
  CAS-BOT-BC267972  Eriogonum umbellatum var. argus James L. Reveal; Darin S. Reveal 1978-8-8 4808 Siskiyou Along the road from Scott Mountain Summit on California Highway 3 on the Gazelle-Callahan Road via Big Carmen Lake (USFS #40N08), 2.5 miles northeast of the Summit and about 1 mile northeast of the Lake, at the end of a ridge about 0.3 mile north of the.. 1737 Comment
  CAS-BOT-BC267975  Eriogonum umbellatum var. argus H. A. Thomas; J. H. Thomas 1954-7-25 4532 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  JEPS83872  Eriogonum umbellatum var. argus Wayne Roderick July 1976 Siskiyou along trail to Copper Butte (vicinity Cook and Green Pass); Siskiyou Mts. 1767 Comment
  UC163832  Eriogonum umbellatum var. argus Geo. D. Butler 1909-8-3 209 Siskiyou Log Lake, Shackleford Creek Comment
  UC849589  Eriogonum umbellatum var. dumosum A. A. Heller 1938-7-13 15271 Siskiyou just s Bray 1402 Comment
  CAS-BOT-BC509287  Eriogonum umbellatum var. goodmanii Dana York 2011-8-13 3065 Siskiyou Klamath National Forest, Marble Mountain Wildernesss, summit of Black Marble Mountain 2268 Comment
  CAS-BOT-BC268154  Eriogonum umbellatum var. humistratum Peter H. Raven 1956-9-4 10418 Siskiyou On the summit of Mt. Eddy 2758 Comment
  CHSC67583  Eriogonum umbellatum var. humistratum James D. Jokerst 1992-7-30 3416 Siskiyou Top of divide between Trinity River, summit of reddish mountain S of road crossing saddle. Comment
  RSA420695  Eriogonum umbellatum var. modocense M. B. Dunkle 1945-08 9276 Siskiyou Paradise Lake, rocky ledge. Comment
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  RSA766152  Eriogonum umbellatum var. polyanthum J. T. Howell 1939-8-2 14887 Siskiyou Spirit Lake, Marble Mts. Comment
  HSC96736  Eriogonum ursinum var. erubescens James L. Reveal, Julie Knorr 2002-8-5 8371 Siskiyou Scott Bar Mtns., N and W slope and ridge of Deadwood Baldy Peak, Klamath National Forest 1675 Comment
  JEPS56124  Eriogonum vimineum W. L. Jepson 1940-6-23 19979 Siskiyou Yreka 822 Comment
  JEPS56139  Eriogonum vimineum W. L. Jepson 1940-6-23 19987 Siskiyou e Grenada and Mayten (east side of Little Shasta Valley); Little Shasta Valley 883 Comment
  CAS-BOT-BC262370  Eriogonum vimineum Gordon H. True No date on label 3295 Siskiyou Scott Valley, just west of Fort Jones 792 Comment
  HSC17386  Eriogonum vimineum R. C. Wunner 1965-6-29 294 Siskiyou Lava Beds N. M., 0.25 mi. NW of Lower Caldwell Ice Cave 1433 Comment
  SEINET8850152 Image available Eriophorum gracile H. E. Brown 1897-7-15 628 Siskiyou South side of Mt. Shasta 1524 Comment
  CHSC4723  Eriophyllum lanatum R. Carter 1966-5-15 403 Siskiyou One mile E of Calahan on N side of Callahan-Gazelle Rd., opposite a small meadow. 914 Comment
  HSC43860  Eriophyllum lanatum Maralyn O'Meara 1974-5-25 370 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  SEINET10919980  Eriophyllum lanatum Billy Joe Cox 1971-6-9 Cox 3200 Siskiyou 11 mi. N of Weed, on U.S. Hwy. 97; decomposing lava, sandy, on slight S-E facing slope. 1250 Comment
  CAS-BOT-BC301131  Eriophyllum lanatum var. achilleoides A. M. Vollmer; L. Beane 1951-6-2 40 Siskiyou Klamath River Highway, betw. U.S. 99 & Gottville Comment
  CAS-BOT-BC301140  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-7-20 12479 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  HSC27597  Eriophyllum lanatum var. grandiflorum Carl W. Mize 1972-6-21 59 Siskiyou 305 Comment
  SFV5208  Eriophyllum lanatum var. grandiflorum B. C. Templeton 1957-6-24 s. n. Siskiyou Scott Mountains. Near the top of Gazelle Mountain. 1463 Comment
  CAS-BOT-BC301704  Eriophyllum lanatum var. lanceolatum K. T. Stillman 1976-8-7 202 Siskiyou Marble Mountain Wilderness Area 1981 Comment
  CHSC99704  Eriophyllum lanatum var. lanceolatum L. P. Janeway 2008-7-24 9486 Siskiyou Klamath Ranges. Siskiyou Mountains; crest of the mountain 1.3 air km east of Condrey Mountain. 2050 Comment
  HSC29226  Eriophyllum lanatum var. lanceolatum Frederick W. Oettinger 1969-8-18 1435 Siskiyou Marble Mtn. Wilderness Area; NE of Horse Range Lake 1822 Comment
  RSA183730  Eriophyllum lanatum var. lanceolatum Gilbert Muth 1965-7-29 134 Siskiyou Trail to Marble Mt., Lookout. Marble Mts. Comment
  SDSU4103  Eriophyllum lanatum var. lanceolatum D. F. Howe 1962-8-5 3396 Siskiyou 15.2 miles east of Happy Camp on #96. 549 Comment
  HSC41085  Erodium cicutarium J. O. Sawyer 1970-3-4 2071 Siskiyou N of Idlewild Campground. 762 Comment
  RSA15591  Erysimum capitatum var. capitatum C. B. Wolf 1927-8-27 1128 Siskiyou On the Klamath River. 7 miles below Happy Camp. Comment
  RSA238403  Erysimum capitatum var. perenne Frederick W. Oettinger 1968-8-17 564 Siskiyou Bear Meadows, Pine Lake Basin. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1860 Comment
  HSC19559  Erysimum perenne J. O. Sawyer 1969-7-9 1260 Siskiyou W facing slope above Bingham Lake 2317 Comment
  UC199229  Erysimum perenne Annie M. Alexander and Louise Kellogg 1911-6-21 168 Siskiyou Jackson L. Jackson Pk Comment
  UC618765  Erysimum perenne W. Bridge Cooke 1938-6-24 11073 Siskiyou in openings along spring creek and in the meadow Mount Shasta, MacBride Spring Comment
  SEINET8340793  Erythranthe breweri J. M. Tucker 1974-7-28 4315 Siskiyou Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  CHSC118627  Erythranthe guttata Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -029 Siskiyou Lower Parks Creek watershed, E Klamath Range; slope above Forest Service Road 42N19, 4 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539166m E, 4587170m N. 1529 Comment
  SJSU917  Erythranthe guttata J. W. Tilden 1946-6-20 1007 Siskiyou Spring Flat, NW from Fort Jones, Scott R Comment
  RSA28196  Erythronium citrinum var. citrinum Elmer I. Applegate 1932-4-15 7059 Siskiyou Quartz Valley, near Fort Jones Comment
  CAS-BOT-BC502724  Erythronium grandiflorum G. J. Muth 1969-8-8 1286 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  HSC61796  Erythronium grandiflorum subsp. grandiflorum Ruby Van Deventer Jun 1961 Siskiyou Poker Flat 1585 Comment
  HSC19558  Erythronium grandiflorum subsp. grandiflorum J. O. Sawyer 1969-7-18 1424 Siskiyou E of Russian Lake 2043 Comment
  RSA237910  Erythronium grandiflorum subsp. grandiflorum Frederick W. Oettinger 1967-7-20 195 Siskiyou Northeast end of Crapo Peak Ridge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area 2186 Comment
  SEINET10966318  Erythronium grandiflorum var. pallidum F. Marion Ownbey, Ruth P. Ownbey 1938-7-19 Ownbey 1753 Siskiyou Near melting snow, summit of the Siskiyou Mountains, 2 1/2 miles northwest of Dry Lake Lookout. Comment
  CAS-BOT-BC403676  Eschscholzia californica A. A. Heller 1918-7-16 13081 Siskiyou Fields south of Yreka Comment
  SD75848  Eucephalus glabratus Darley F. Howe 1969-8-9 Siskiyou North entrance to Siskyou National Forest. 1525 Comment
  HSC69202  Eucephalus ledophyllus var. ledophyllus Maralyn A. Renner 1980-9-1 2686 Siskiyou Bear Mtn. 1936 Comment
  HSC65053  Euonymus occidentalis J. P. Smith, Steve Selva 1970-6-16 4089 Siskiyou 7 mi. W of Sawyers Bar on road to Forks of Salmon Comment
  RSA34279  Euphorbia crenulata C. B. Wolf 1934-7-6 6030 Siskiyou West side of Mt Shasta, along Snowline road, 3.3 miles from Mt. Shasta City 1524 Comment
  RSA436011  Euphorbia crenulata W. Bridge Cooke 1940-6-20 15139 Siskiyou Along the Pacific Highway (US99) in the Klamath River Gorge below Hornbrook. 610 Comment
  UC1777716  Euphorbia spathulata J. Di Tomaso 2002-5-17 Siskiyou 8 mi NE of Montague (York Rd, 3 m E of intersection with Mulloy Rd) Comment
  CDA36154  Euphorbia virgata C. Pirosko Jul 2003 s.n. Siskiyou 0 Comment
  CAS-BOT-BC310634  Eurybia radulina Alice Eastwood 1912-7-21 1281 Siskiyou Sisson Comment
  JEPS81790  Eurybia radulina Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6828 Siskiyou meadow just below and n of Scott Mountain road summit 1615 Comment
  CAS-BOT-BC283179  Festuca californica subsp. californica Roxana S. Ferris; Laura Lorraine 1948-6-12 11798 Siskiyou Scott Mountain Road south of Callahan Comment
  UCD65876  Festuca californica subsp. californica A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3441 Siskiyou Near Happy Camp above the Klamath River. Comment
  RSA273423  Festuca californica var. californica J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5735 Siskiyou 2.0 miles south of Sugar Creek on Parrott Mill Road. 1341 Comment
  CAS-BOT-BC278733  Festuca idahoensis Louis C. Wheeler 1934-6-1 2658 Siskiyou Klamath National Forest, N. Hungry Creek 1219 Comment
  CAS-BOT-BC278735  Festuca idahoensis Elmer I. Applegate 1935-6-10 9463 Siskiyou Indian Well, Lava Beds National Monument Comment
  HSC76703  Festuca idahoensis K. T. Stillman 1976-7-14 222 Siskiyou Marble Mtn. Wilderness Area, Kings Castle 2073 Comment
  RSA414218  Festuca idahoensis M. B. Dunkle 1945-8-2 9283 Siskiyou Kings Castle, Klamath National Forest. Marble Mountains. Comment
  RSA582095  Festuca idahoensis L. C. Wheeler 1934-6-18 2730 Siskiyou West Fork Cottonwood Creek, Siskiyou Mountains. 1280 Comment
  SBBG575  Festuca microstachys var. microstachys J. M. Tucker 1947-5-17 1557 Siskiyou ca. 5 mi SE of Callahan on rd to Scott Mtn Comment
  UC818049  Festuca occidentalis Alice Eastwood 1912-7-17 1098 Siskiyou McCloud 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
  UCD66440  Festuca subulata A. A. Heller 1916-7-20 12466 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy in openings in the forest. 1188 Comment
  HSC92060  Floerkea proserpinacoides Jennifer Whipple 1976-7-2 1282 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  RSA29656  Floerkea proserpinacoides Louis C. Wheeler 1935-6-27 3596 Siskiyou Etna Creek, Marble Mtns. 1524 Comment
  CAS-BOT-BC59976  Frangula purshiana Alice Eastwood 1921-7-30 11007 Siskiyou Soda Creek. Comment
  CAS-BOT-BC59978  Frangula purshiana Louis C. Wheeler 1934-7-17 2915 Siskiyou Forest: Klamath. Cottonwood Cr. 944 Comment
  HSC100318  Frangula purshiana subsp. annonifolia J. P. Smith, J. O. Sawyer 2011-7-21 13032 Siskiyou Flint Valley, at the end of the G-O Road. 1313 Comment
  CHSC71323  Frangula rubra Vernon H. Oswald; Lowell Ahart 1998-6-11 9188 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
  CAS-BOT-BC59596  Frangula rubra subsp. rubra John Thomas Howell 1934-7-4 12402 Siskiyou Se. croner of Siskiyou Co. Comment
  CAS-BOT-BC59598  Frangula rubra subsp. rubra A. A. Heller 1905-6-22 8087 Siskiyou Between Igerna and Weed 1158 Comment
  CAS-BOT-BC223586  Fraxinus latifolia L. R. Short 1933-6-8 33 Siskiyou Klamath National Forest. Klamath River bank 701 Comment
  RSA74739  Fraxinus latifolia Albert M. Vollmer, L. Beane 1951-6-2 46 Siskiyou Klamath River Hwy, between US 99 and Gottville. Comment
  UC61684  Fraxinus latifolia Geo. B. Grant Sep 1904 5181 Siskiyou Dunsmuir Mount Shasta 609 Comment
  UC15019  Fritillaria affinis T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou in the Scott River Valley Scott River Valley Comment
  UCD77732  Fritillaria atropurpurea Robert E. Preston 2002-6-20 1862 Siskiyou Klamath National Forest, Rainbow Mountain. 1910 Comment
  HSC69734  Fritillaria atropurpurea Heidi Daetwyler 1981-5-18 1 Siskiyou Elk Flat, logged area, 11 mi. NE of McCloud 1524 Comment
  UC375203  Fritillaria pudica Geo. D. Butler 1910-5-1 1264 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC506208  Fritillaria pudica Ellsworth Bethel 1923-4-21 s.n. Siskiyou Fall River Mills Comment
  HSC33973  Fritillaria recurva J. P. Smith 1974-5-25 7435 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  HSC68347  Galium aparine J. P. Smith 1973-5-5 6382 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  UCD121734  Galium aparine J. M. Tucker 1950-7-23 1935 Siskiyou West of Mount Shasta High School, town of Mount Shasta. Comment
  HSC403  Galium bifolium William J. Ferlatte 1967-7-9 698 Siskiyou Kidd Creek Trail 1982 Comment
  JEPS18602  Galium bifolium Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-7-26 5948 Siskiyou s end Gumboot Lake 1859 Comment
  UC1409412  Galium bolanderi Frederick W. Oettinger 1969-8-3 1144 Siskiyou in brushy area between Willow Springs and English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  HSC43142  Galium bolanderi Ken Stillman 1976-8-24 419 Siskiyou E and N slopes of Williams Point 366 Comment
  SBBG18844  Galium bolanderi C. B. Hardham 1961-7-2 8051 Siskiyou banks of Scott River S of Steelhead Comment
  UCD63246  Galium glabrescens Daniel Sanchez-Mata; Tomas Santamaria 2006-7-26 s.n. Siskiyou Weed. Rail Creek Road from Gazelle-Callahan Road. Kangaroo Lake. Kangaroo Lake Botanical Area. Scott Mountains, Klamath National Forest. 1900 Comment
  HSC104308  Galium glabrescens subsp. glabrescens Dana York 2012-7-21 3144 Siskiyou Rogue River-Siskiyou National Forests; Siskiyou Mountains, Red Buttes Wilderness, a few meters below summit of Red Butte 2043 Comment
  JEPS21478  Galium mexicanum var. asperulum Stanton A. Cook 1958-8-17 842 Siskiyou river about three mi above confluence of Mud Creek (beside spring); McCloud River Comment
  HSC81558  Galium serpenticum subsp. scotticum Thomas W. Nelson, Jane P. Nelson 1980-7-21 6159 Siskiyou Along F.S. 40N08, 0.6 mi. from junction with S.R. 3 1646 Comment
  UC1586850  Galium trifidum var. pusillum Juha Pykala and D. H. Norris 1987-7-8 2454 Siskiyou n shore Medicine Lake 2040 Comment
  UC1258469  Galium triflorum John Palmer 1980-8-12 686 Siskiyou se Wards Gap; Klamath National Forest, Condry Mtn. Quad 1188 Comment
  HSC60808  Galium triflorum Ruby Van Deventer 1962-8-15 Siskiyou Bell Echo (Bell Echo Camp) in Young's Valley 1189 Comment
  HSC31327  Garrya fremontii K. L. Chambers 1967-6-22 2848 Siskiyou About 500 ft. above and E of the freeway (Hwy. 5 ) at the Hilts exit, Siskiyou Pass 1098 Comment
  UC54503  Garrya fremontii Harley P. Chandler Jun 1901 1635 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  UC903492  Garrya fremontii Dorothy Parker 1948-2-27 215 Siskiyou Plowman's Valley 1219 Comment
  HSC30236  Garrya fremontii William J. Ferlatte 1969-6-26 1191 Siskiyou Big Flat near campground 1524 Comment
  HSC26905  Gaultheria humifusa J. P. Smith 1971-9-17 4782 Siskiyou Little Duck Lake 1921 Comment
  RSA374499  Gayophytum diffusum subsp. parviflorum L. P. Janeway 1983-8-28 629 Siskiyou At Poker Flat. Dry W side of lower portion of meadow. 1524 Comment
  HSC78203  Gayophytum diffusum subsp. parviflorum L. P. Janeway 1983-7-3 367 Siskiyou Ridgetop NW of Poker Flat (the Siskiyou Crest) 1524 Comment
  POM355398  Gayophytum diffusum subsp. parviflorum L. S. Rose 1937-7-28 37599 Siskiyou Shasta Springs 915 Comment
  RSA34394  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1947-8-9 17790 Siskiyou Around Horse Camp, Mount Shasta. 2439 Comment
  POM258620  Gayophytum heterozygum W. Bridge Cooke 1940-7-12 15340 Siskiyou Mount Shasta: along the Memorial Highway below MacBride Springs. 1372 Comment
  UCD103563  Gayophytum heterozygum J. M. Tucker 1950-7-24 1946 Siskiyou Outskirts of town of Mt. Shasta, beside Highway 99. Comment
  SBBG30545  Gayophytum humile D. Myrick 1968-6-28 2051 Siskiyou Mountain Meadow Ranch, Big Flat, head of Coffee Crk, Trinity Alps 1524 Comment
  POM256536  Gayophytum humile W. Bridge Cooke 1940-6-6 15059 Siskiyou Near the outlet of Castle Lake 1677 Comment
  SEINET7040084  Gayophytum ramosissimum A. G. Vestal 1963-6-1 s.n. Siskiyou Road to Lake Shastina [Dwinnell Reservoir]. Lake Shastina Quad. UTM Zone 10, 548843mE, 4594393mN Comment
  RSA392178  Gentiana calycosa M. B. Dunkle 1944-8-2 9304 Siskiyou Marble Mountains, Klamath National Forest. 2439 Comment
  NY297626  Gentiana copelandii A. Eastwood 1912-8-30 2037 Siskiyou Mount Eddy Comment
  SEINET881860 Image available Gentiana plurisetosa S. K. Harris, C. C. Harris 1939-1 976 Siskiyou Half Moon Meadow, Marble Mt. Primitive Area. 1670 Comment
  RSA238870  Gentiana plurisetosa Frederick W. Oettinger 1968-8-3 373 Siskiyou Base Camp Meadow at mid-trail between Diamond and Hancock Lakes. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  UC185731  Gentianella amarella subsp. acuta Copeland 1903-9-6 3849 Siskiyou Mt. Eddy Comment
  JEPS11906  Gentianella amarella subsp. acuta Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-13 4798 Siskiyou along road from Callahan to Carrville and Trinity Center (just n of Trinity-Siskiyou County line, meadow 0.1 mi n of summit of divide w of Scott Mt) 1615 Comment
  CAS-BOT-BC143587  Geum triflorum L. E. Smith 1913-5-18 229 Siskiyou Bray Comment
  LA88501  Gilia capitata O. H. Kappler; 1948-7-16 1801 Siskiyou Siskyou Mountains, on rd to Happy Camp 701 Comment
  JEPS82471  Gilia capitata subsp. capitata Gilbert Muth 1966-7-8 371 Siskiyou Marble Valley Meadow , Marble Valley Meadow (Marble Mt. Wilderness Area) 1792 Comment
  UC106824  Gilia capitata subsp. capitata Brandegee July 1887 Siskiyou Sissons Comment
  NY329474  Glaux acutifolia A. A. Heller 1905-6-20 8073 Siskiyou Gazelle Comment
  HSC101471  Glyceria elata J. P. Smith, J. O. Sawyer 2011-7-21 13037 Siskiyou Near Dillon Camp 1358 Comment
  HSC22306  Glyceria elata J. O. Sawyer 1969-8-4 1792 Siskiyou Along C.C.C. road 1341 Comment
  HSC26629  Glyceria elata J. P. Smith, Steve Selva 1970-6-16 4061 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  CHSC61576  Glyceria striata L. P. Janeway 1983-9-11 684 Siskiyou Siskiyou Mountains; at Poker Flat, in the middle of the lower part of the meadow. 1524 Comment
  POM229180  Glyceria striata L. C. Wheeler 1935-7-24 3693 Siskiyou Jaynes Canyon. Siskiyou Mtns. 1950 Comment
  SDSU1119  Glyceria striata D. F. Howe 1962-8-4 3387 Siskiyou Baldy Mt., in pool of water. 1524 Comment
  JEPS34044  Gnaphalium palustre W. L. Jepson 1940-7-3 20101 Siskiyou Big Bear Flat (large mdw. e 5 mi se of Bartle) Big Bear Flat 1219 Comment
  POM4641  Gnaphalium palustre Copeland 1903-10-5 3826 Siskiyou Igerna. Comment
  CAS-BOT-BC314628  Grindelia hirsutula R. E. Frenkel 1964-10-2 869 Siskiyou On the south-west side of Everett Memorial Highway near Mount Shasta 1642 Comment
  CAS-BOT-BC314630  Grindelia hirsutula L. E. Smith 1915-7-1 s.n. Siskiyou Montague Comment
  CAS-BOT-BC314627  Grindelia hirsutula Lewis S. Rose 1941-8-28 41428 Siskiyou Macdoel 1297 Comment
  SEINET10969142  Hackelia bella Melvin L. Conrad, David B. Dunn; Patricia L. Kenney 1973-6-2 Conrad 6984 Siskiyou Yellow pine, libocedrus, douglas fir, western hemlock forest, 17.4 mi ne of Cecilville store, on road to callahan. 2073 Comment
  CDA36166  Hackelia californica C. Pirosko s.n. Siskiyou Highway 89 north before McCloud. 0 Comment
  UCD18306  Hackelia californica Joe Ditomaso 2001-6-12 s.n. Siskiyou Buck Mtn., near McCloud, off Pilgrim Creek Rd. 1828 Comment
  CAS-BOT-BC231153  Hackelia cusickii Gary Schoolcraft 1985-6-18 1438 Siskiyou 0.25 mile W of Red Rock Lakes 1493 Comment
  UC722440  Hackelia micrantha C. L. Hitchcock, J. S. Martin 1939-7-6 5219 Siskiyou Takilma-Happy Camp Road 1676 Comment
  POM258915  Hackelia micrantha C. L. Hitchcock, J. S. Martin 1939-7-6 5219 Siskiyou On Takilma-Happy camp road. 1677 Comment
  RSA211247  Hackelia micrantha W. J. Ferlatte 1966-7-7 212 Siskiyou A flora of the Trinity Alps of northern California. Northwest side of Caribou Mountain. 1829 Comment
  UC1035169  Hackelia micrantha Dorothy Parker 1953-8-9 585 Siskiyou along edge of small lake in the Salmon Mountain Range; Siskiyou Mountains, Salmon Mountain Range Comment
  CAS-BOT-BC504619  Hastingsia alba Peter H. Raven 1956-9-5 10443 Siskiyou Near North Fork of the Sacramento River 2194 Comment
  POM208384  Hastingsia alba Louis C. Wheeler 1934-7-3 2845 Siskiyou Soda Creek, Sterling Mt.; Siskiyou Mountains; Mt. Diablo Meridian 1524 Comment
  RSA299411  Hastingsia alba W. L. Jepson 1914-8-13 5789 Siskiyou Sisson. 1098 Comment
  HSC44998  Hastingsia serpentinicola J. P. Smith, Steve Selva 1970-7-17 4454 Siskiyou Below Kangaroo Lake. 1890 Comment
  CDA6183  Hazardia whitneyi var. discoidea T. C. Fuller, Don Shaw 1974-9-24 20032 Siskiyou Pacific Crest Trail, summit of the Siskiyou Mountains, east of White Mountain. 0 Comment
  RSA237440  Hazardia whitneyi var. discoidea Frederick W. Oettinger 1968-8-24 623 Siskiyou Crapo Peak Ridge above Tom Taylor Cabin. Salmon Mountains. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  UC922273  Hazardia whitneyi var. discoidea Annie M. Alexander and Louise Kellogg 1949-7-29 5899 Siskiyou above, trail to Hidden lake Sky High lake; Marble Mountains, Sky High Valley 1767 Comment
  CAS-BOT-BC306741  Helenium bigelovii Peter H. Raven 1956-9-5 10451 Siskiyou North Fork of Sacramento River 2194 Comment
  OBI55478  Helenium bigelovii David J. Keil, Kathleen Keil 1992-7-21 23529 Siskiyou Klamath Natl Forest sE of Callahan. forest Rd 40N08, 0.5 mi W of Scott Mtn rd (hwy 3) Comment
  HSC92731  Helianthella californica var. shastensis Jennifer Whipple 1976-6-30 1204 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  CAS-BOT-BC314843  Helianthella californica var. shastensis Elmer I. Applegate 1896-5-29 593 Siskiyou Sacramento River below Sisson Comment
  OBI55529  Helianthus bolanderi David J. Keil, Kathleen Keil 1992-7-21 23516 Siskiyou Klamath Natl Forest SE of Callahan on hwy 3, 2.1 mi NW of Scott Mtn summit Comment
  UC61689  Helianthus bolanderi Geo. B. Grant 1902-9-1 5207 Siskiyou Dunsmuir Mount Shasta, Dunsmuir 609 Comment
  JEPS107479  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
  CAS-BOT-BC313447  Hemizonella minima Elmer I. Applegate 1935-6-8 9418 Siskiyou Bear Paw Caves, Lava Beds National Monument Comment
  CAS-BOT-BC313448  Hemizonella minima Elmer I. Applegate 1935-6-8 9418 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  UC165251  Hemizonella minima Geo. D. Butler 1909-4-25 620 Siskiyou Quartz Valley Comment
  JEPS24011  Hesperolinon micranthum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6872 Siskiyou along the road 4.7 mi below (n of) Scott Mtn. (road summit, just s of and above Callahan) 1127 Comment
  SJSU3566  Heterocodon rariflorum D. Funnell 1965-7-13 142 Siskiyou c. 2 mi SE of Bartle on State Rte 89 1158 Comment
  CAS-BOT-BC143611  Heteromeles arbutifolia Carl B. Wolf 1927-8-27 1151 Siskiyou On the Klamath River 10 miles above the Salmon River Comment
  HSC75653  Heuchera cylindrica J. O. Sawyer, R. J. Cole 1980-7-22 3876 Siskiyou 0.5 mi. S of Lava Camp 1829 Comment
  CAS-BOT-BC420702  Heuchera merriamii Ira L. Wiggins 1955-7-29 13581 Siskiyou Summit of ridge above Thompson Creek, trail to Caribou Lake 1999 Comment
  CAS-BOT-BC420703  Heuchera merriamii John Thomas Howell 1937-7-24 13400 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC420705  Heuchera merriamii Gilbert Muth 1969-8-6 1185 Siskiyou Boulder Peak Comment
  JEPS84338  Heuchera merriamii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6370 Siskiyou 7 mi nne of Seiad Valley (w of Cook and Green Pass, 1/2 mi e of Red Butte summit) 1900 Comment
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  SBBG26900  Heuchera merriamii J. T. Howell 1937-7-24 Siskiyou Caribou Basin, Salmon-Trinity Alps 1981 Comment
  RSA0063201  Heuchera merriamii Gilbert Muth 1965-8-11 208 Siskiyou Marble Valley. Marble Mtns. Comment
  HSC26104  Heuchera micrantha J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5675 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  CAS-BOT-BC420933  Heuchera micrantha var. diversifolia A. A. Heller 1905-6-17 8060 Siskiyou Near Sisson Comment
  CAS-BOT-BC424177  Heuchera micrantha var. erubescens Alice Eastwood; John Thomas Howell 1934-4-20 1771 Siskiyou Near Yreka along Shasta River Comment
  HSC55717  Heuchera rubescens G. L. Clifton, Griswold 1979-7-26 10149 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  CAS-BOT-BC319687  Hieracium albiflorum L. E. Smith 1913-7-12 477 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC318510  Hieracium bolanderi Doris K. Kildale 1929-7-20 8540 Siskiyou Trail to Preston Peak along South Fork INdian Creek 2133 Comment
  RSA95170  Hieracium bolanderi J. T. Howell 1939-8-6 15097 Siskiyou Marble Mountains Comment
  RSA184623  Hieracium greenei Clare B. Hardham 1965-8-20 1304 Siskiyou Marble Mountains, near Cudahy lakes. Granite Trail. 1524 Comment
  UC572808  Hieracium horridum unknown 1937-8-17 9257 Siskiyou Mt. Shasta 2590 Comment
  CHSC70715  Hieracium scouleri A. Sanger 1996-7-16 2426 Siskiyou 200 yds N of road to Burnt Lava Flow, on Rd 56. On E side of road. 1804 Comment
  RSA237612  Holodiscus discolor Frederick W. Oettinger 1968-9-8 787 Siskiyou Cliffs south of English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1784 Comment
  UC1951318  Holodiscus discolor Robert F. Thorne and Fred Oettinger 1969-8-4 63384 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Near crest of ridge above English Lake, along trail to Hancock Lake. Comment
  CAS-BOT-BC152376  Holodiscus discolor var. discolor Doris K. Kildale 1928-7-2 5412 Siskiyou Salmon Summit via Horse Creek Trail 1981 Comment
  CAS-BOT-BC150129  Holodiscus microphyllus var. glabrescens Dorothy Parker 1950-8-6 489 Siskiyou Salmon Mountain 1798 Comment
  HSC39744  Holosteum umbellatum J. O. Sawyer 1970-4-4 2091 Siskiyou Along Sugar Creek 823 Comment
  JEPS94386  Hordeum brachyantherum subsp. brachyantherum Vernon Oswald and Lowell Ahart 1997-7-28 8787 Siskiyou on road 43N54 at a meadow 0.6 mi se of Paynes Springs (se of Medicine Lake) 1920 Comment
  RSA216102  Hordeum depressum Javier Penalosa 1967-3-26 2992 Siskiyou Vernal Pools Natural Area in Valley Grassland 4.5 miles ENE of Pixley 84 Comment
  CAS-BOT-BC273496  Hordeum vulgare John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-28 53378 Siskiyou 2 miles south of Grenada, Shasta Valley 762 Comment
  JEPS44170  Horkelia daucifolia Geo. D. Butler 1909-5-8 713 Siskiyou Shasta Valley Comment
  SBBG72488  Horkelia daucifolia A. A. Heller 1927-5-14 14384 Siskiyou near Gazelle, Shasta Valley Comment
  SEINET7042830  Horkelia daucifolia A. G. Vestal 1955-5-16 s.n. Siskiyou Serpentine ca. 6.2 miles northwest of Weed. Weed quadrangle UTM Zone 10, 543291mE, 4591309mN. Comment
  UC574869  Horkelia fusca subsp. parviflora John Thomas Howell 1937-7-21 13168 Siskiyou near Big Flat (South Fork of Salmon River) 1524 Comment
  UC54359  Horkelia tridentata subsp. tridentata H. M. Hall and E. B. Babcock June 1903 4052 Siskiyou near Sisson; Sierra Nevada 1036 Comment
  CAS-BOT-BC539438  Horkelia tridentata var. tridentata A. A. Heller 1916-8-24 12565 Siskiyou Near Sisson 1074 Comment
  UCD77837  Hosackia oblongifolia Robert E. Preston 2002-7-11 1897 Siskiyou Klamath National Forest, Trout Creek Meadow 1505 Comment
  POM54129  Hulsea nana E. B. Copeland 1903-8-16 3832 Siskiyou Mount Shasta 3201 Comment
  UC585172  Hydrophyllum occidentale E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2003 Siskiyou 1.5 mi w Mt. Shasta City (above Sulloway Creek, spur of Rainbow Ridge, e and ne slope); Rainbow Ridge 1188 Comment
  SD46777  Hymenoxys lemmonii E. K. Balls, L. W. Lenz 1956-6-18 21723 Siskiyou 5.7 miles southeast of Gazelle, U. S. Highway 99, Yreka to Dunsmiur. 885 Comment
  UC336196  Hymenoxys lemmonii J. G. Lemmon and wife 1889-7-26 Siskiyou Edgwood Comment
  UC164264  Hypericum anagalloides Geo. D. Butler 1908-8-3 52 Siskiyou Shackleford Creek, Log Lake Comment
  JEPS124800 Image available Hypericum anagalloides Laurel Loeblich 1964-7-1 75 Siskiyou East of highway 89 about 7 meters from road pavement 6 miles northwest of Dead Horse Summit. Comment
  SEINET10472172  Hypericum anagalloides Mary Susan Taylor 1980-7-8 Taylor 3100 Siskiyou T39N R5W ne sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on NW side of Castle Lake, along edge of lake. 1615 Comment
  RSA185872  Hypericum androsaemum H. A. Thomas, J. H. Thomas, Alan Thomas 1954-7-23 4461 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Vicinity of Blind Horse Creek. 915 Comment
  JEPS66830  Hypericum formosum var. scouleri Geo. D. Butler 1908-7-21 5 Siskiyou Oro Fino 762 Comment
  POM211385  Idahoa scapigera L. C. Wheeler 1935-3-16 3373 Siskiyou Klamathon, Klamath River. 701 Comment
  CAS-BOT-BC206834  Iliamna bakeri Dean Wm. Taylor; Glenn L. Clifton; R. Doug Stone 1987-8-6 9244 Siskiyou Hambone Island region, about 100 m south of Lava Tank, extreme northeastern portion of County. Comment
  RSA530091  Iliamna bakeri D. W. Taylor 1987-8-6 9244 Siskiyou Extreme northeastern portion of county.; (Hambone Island region, about 100 m south of lava Tank) Comment
  JEPS87631  Ipomopsis aggregata subsp. formosissima Vernon H. Oswald and Lowell Ahart 1994-8-10 6463 Siskiyou ca 5 mi (air) nw McCloud (FS Rd 31, 0.6 mi e of Ski Park Hwy (FS Rd 88)) 1584 Comment
  RSA79003  Ipomopsis aggregata subsp. formosissima E. K. Balls, P. C. Everett 1952-10-13 18191 Siskiyou Mt. Shasta, 10.2 mi n.e. of town of Mt. Shasta, John Everitt Hwy 1829 Comment
  CHSC71335  Iris missouriensis Vernon H. Oswald; Lowell Ahart 1998-6-11 9213 Siskiyou Old State Hwy. 0.5 miwest of Bray, ca. 10 air mi east of Grass Lake located on Hwy. 97, ca. we air mi northeast of Weed. 1414 Comment
  UC164475  Iris missouriensis Geo. D. Butler 1909-6-22 883 Siskiyou Goosenest foothills Comment
  HSC42959  Iris tenuissima J. O. Sawyer, K. T. Stillman 1976-5-30 2756 Siskiyou Along Specimen Creek. 915 Comment
  UC4296  Iris tenuissima Harley P. Chandler Jun 1901 1570 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  RSA136340  Iris tenuissima Lee W. Lenz 1953-5-13 18297 Siskiyou 9 miles north of Siskiyou County line, road to Happy Camp Comment
  NY411181  Isatis tinctoria F. M. Ownbey 1940-7-7 2208 Siskiyou Soap Ridge road, southwest of Yreka Comment
  CAS-BOT-BC88663  Isatis tinctoria Marion Ownbey; Fred G. Meyer 1940-7-7 2208 Siskiyou Soap Ridge Road, southwest of Yreka. Comment
  SEINET11971706  Isatis tinctoria M. Ownbey, Meyer, F. G. 1940-1 2208 Siskiyou Soap Ridge road, SW of Yreka Comment
  SEINET13762155 Image available Isatis tinctoria T. C. Fuller 1960-5-26 4344 Siskiyou Roadside and hillslope, Greenhorn Creek, 1.5 mi. W. Yreka Comment
  HSC28733  Isoetes bolanderi Frederick W. Oettinger 1969-7-29 1095 Siskiyou Marble Mtn. Wilderness Area, Dry Lake 2027 Comment
  UCD19434  Isoetes echinospora Charlotte K. Glenn 1967-1 201 Siskiyou Castle Lake. 1584 Comment
  CAS-BOT-BC69863  Isoetes occidentalis Louis C. Wheeler 1963-9-11 8385 Siskiyou Siskiyou Mountains: Dillon Creek, 3/4 mi. ne. of Sawtooth Mountain. 1615 Comment
  CAS-BOT-BC139771  Ivesia gordonii Lester Rowntree 1936-7-16 s.n. Siskiyou Divide in Trinity Mts. above Granite Creek Comment
  HSC40383  Ivesia pickeringii Kevin Sawyer, J. O. Sawyer, Jane Cole, J. P. Smith 1976-9-5 8970 Siskiyou 2.5 miles north of Siskiyou-Trinity Co. line on State Route 3 1524 Comment
  UCR222503  Juncus R. F. Thorne 1969-8-2 63397 Siskiyou Klamath Ranges Region; Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, trail to English Peak [along N fork of Salmon River] 1159 Comment
  CAS-BOT-BC109978  Juncus Melissa A. Berry 1957-7-4 s.n. Siskiyou Carter Meadow at junction of Long Gulch and Trail Gulch on South Fork of Salmon River. 1676 Comment
  CHSC60615  Juncus articulatus L. P. Janeway 1983-9-23 696 Siskiyou Along edge of Rd 18N33 ca 6 mi form Grayback Road. 1432 Comment
  JEPS107945  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
  RSA238903  Juncus drummondii Frederick W. Oettinger 1969-9-4 1660 Siskiyou Just S of Tom s Lower Pond. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  HSC74815  Juncus dubius J. P. Smith 1978-7-1 9995 Siskiyou Klamath National Forest, O'Neill Creek Campground, Klamath River 488 Comment
  JEPS66977  Juncus ensifolius Geo. D. Butler 1910-7-9 1734 Siskiyou Shackleford Creek 1219 Comment
  HSC77127  Juncus ensifolius L. P. Janeway 1983-8-3 482 Siskiyou 350 m N of W Branch Guard Station 671 Comment
  RSA14323  Juncus ensifolius Elmer I. Applegate 1895-5-28 s.n. Siskiyou Sisson, Strawberry Valley. Near Sesson s Tavern. Comment
  CAS-BOT-BC110802  Juncus mertensianus John Thomas Howell 1937-7-22 13271 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  HSC22472  Juncus mertensianus J. O. Sawyer 1968-7-9 440 Siskiyou W of Little Duck Lake 1936 Comment
  CAS-BOT-BC110803  Juncus mertensianus Harry R. Saxton; Roy H. Canfield 1922-7-11 3 Siskiyou Klamath Forest. Mud Springs. 1676 Comment
  HSC30677  Juncus mertensianus Frederick W. Oettinger 1968-9-10 817 Siskiyou Marble Mtns. Wilderness Area, just S of Horse Range Lake 1845 Comment
  LA20046  Juncus mertensianus F. J. Hermann; 1939-8-8 13818 Siskiyou Mount Shasta, around the upper Horse Camp Springs 2514 Comment
  JEPS84176  Juncus mexicanus L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6380 Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1.5 mi e of Red Butte summit) 1900 Comment
  UCD77268  Juncus nevadensis Robert E. Preston 2002-7-12 1905 Siskiyou Klamath National Forest, S slope of Rainbow Mountain, N of Trout Creek. 1652 Comment
  HSC69355  Juncus nevadensis var. nevadensis Maralyn A. Renner 1980-8-21 2565 Siskiyou Kidd Creek 2043 Comment
  CHSC40144  Juncus parryi L. P. Janeway 1983-8-13 532 Siskiyou NE of Preston Peak. On s side and above S Fk Indian Cr. 1463 Comment
  JEPS40885  Juncus parryi Paul C. Hutchison 1962-8-2 934 Siskiyou between top of ski lift and Panther Meadow; Mt. Shasta 2621 Comment
  CAS-BOT-BC81219  Juniperus occidentalis C. H. M. 1919-9-24 s.n. Siskiyou Ager Comment
  CAS-BOT-BC81223  Juniperus occidentalis Anderson 1925-10-1 s.n. Siskiyou 10 miles north of Edgewood Comment
  CAS-BOT-BC81234  Juniperus occidentalis Elmer I. Applegate 1932-4-15 7060 Siskiyou Scott Valley, east side Comment
  CAS-BOT-BC56362  Kalmia microphylla subsp. microphylla H. A. Thomas; J. H. Thomas 1954-7-24 4504 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  UC335726  Keckiella breviflora J. G. Lemmon Oct 1889 Siskiyou near Dunsmuir (Soda Spring); Soda Spring Comment
  NY790343  Keckiella lemmonii D. C. Michener 1980-8-3 3773 Siskiyou Klamath Mountains. Above road along CA 96 and the Klamath River ca. 8.2 miles northeast of Happy Camp. Comment
  CDA43045  Kochia scoparia Michael Pitcairn 2014-9-11 s.n. Siskiyou Butte Valley; Dorris. Comment
  JEPS84219  Kopsiopsis strobilacea L. R. Heckard with J. Hickman et al. 1986-7-17 6460 Siskiyou Ridge E of Kangaroo Peak, S of Lily Pad Lake, ca 5 miles N of the town of Seiad Valley. 2020 Comment
  CAS-BOT-BC499662  Kopsiopsis strobilacea Wm. Bridge Cooke 1938-7-22 11308 Siskiyou Mount Shasta: Wagon Camp--Horse Camp Trail 2133 Comment
  CAS-BOT-BC340372  Kyhosia bolanderi Alice Eastwood 1912-8-30 1988 Siskiyou Mount Eddy Comment
  UC1023729  Kyhosia bolanderi W. B. Cooke 1941-8-8 16165 Siskiyou Wagon Camp; Mount Shasta Comment
  CAS-BOT-BC340373  Kyhosia bolanderi C. G. Pringle 1882-9-7 s.n. Siskiyou About Mt. Shasta Comment
  CAS-BOT-BC340375  Kyhosia bolanderi Wm. Bridge Cooke 1939-8-22 13878 Siskiyou Mount Shasta. Below the Wagon Camp Sedge Swamp Comment
  CAS-BOT-BC340402  Lactuca Alice Eastwood 1912-8-28 1943 Siskiyou Sisson Comment
  HSC68067  Lagophylla ramosissima J. P. Smith 1976-5-22 8788 Siskiyou Callahan Rd. along the E side of Scott Valley 1037 Comment
  UCD133625  Lagophylla ramosissima P. B. Kennedy 1922-8-29 s.n. Siskiyou Scott Valley. Comment
  CHSC91340  Lagophylla ramosissima subsp. ramosissima Lowell Ahart; John Dittes 2005-6-9 12016 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CAS-BOT-BC204929  Lathyrus Mrs. H. C. Cantelow 1936-5-20 s.n. Siskiyou North slope of Scott Mt. Comment
  CDA17136  Lathyrus nevadensis G. F. Hrusa 2001-6-6 15850 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  SBBG15261  Lathyrus nevadensis D. Myrick 1961-6-21 302 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  SEINET10577313 Image available Lathyrus pauciflorus subsp. brownii H. E. Brown 1897-6-11 Brown 391 Siskiyou North Side Mt. Shasta. 1524 Comment
  CHSC38094  Lepidium draba R. E. Preston 1983-7-17 400 Siskiyou At side of Hiram Page Road, across from grave marker, Yreka. 829 Comment
  CHSC524  Lepidium perfoliatum G. Spurlock 1935-6-1 Siskiyou Comment
  UC1126705  Lepidium perfoliatum L. Whitney 1934-6-23 4 Siskiyou Tennant Dorris Quad., Antelope Creek 1463 Comment
  UCD115850  Lepidium perfoliatum P. Quentin Tomich 1954-6-26 429 Siskiyou Symbol Bridge, Lava Beds National Monument. 1432 Comment
  UC637078  Lepidium virginicum Edward Lee 1934-8-10 1020 Siskiyou near Hamburg (between McKinney and Parkhouse Creeks, s bank of Klamath River); Klamath River 609 Comment
  HSC6830  Lepidium virginicum D. M. Thomson 1965-7-10 124 Siskiyou California Lava Beds National Monument, by Information Center, next to parking lot Comment
  CAS-BOT-BC60148  Lepidium virginicum var. menziesii Doris K. Kildale 1928-7-1 5325 Siskiyou Forks of Salmon. Salmon River. 365 Comment
  CAS-BOT-BC60146  Lepidium virginicum var. menziesii Carl B. Wolf 1927-8-26 1095 Siskiyou On the Klamath River, 14 miles above Happy Camp. Comment
  HSC101759  Leptochloa fusca subsp. fascicularis J. P. Smith, J. O. Sawyer 2011-9-4 13414 Siskiyou Along Ball Mountain-Little Shasta-Mt. Hebron Road. 877 Comment
  POM253567  Lesquerella occidentalis C. L. Hitchcock, J. S. Martin 1939-7-9 5305 Siskiyou N side of Black Mt. near Marble Mt. (King s Castle). 2073 Comment
  UC1001184  Lesquerella occidentalis subsp. occidentalis Dorothy Parker 1953-5-12 531 Siskiyou w side Scott Valley; Siskiyou Mountains, w side of Scott Valley 1188 Comment
  UC455815  Lessingia nemaclada I. J. Condit 1911-7-13 Siskiyou Dunsmuir Sacramento River Comment
  UC1557830  Lessingia nemaclada J. Semple, S. Heard 1986-8-16 8467 Siskiyou 1.6 km w Horse Creek (CA-96, before CA-3) Comment
  CHSC298  Leucanthemum vulgare N. Jaekel 1939-6-27 Siskiyou Mt. Shasta. 2133 Comment
  HSC96499  Leucothoe davisiae Gordon Leppig 1998-8-13 1004 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  RSA238389  Leucothoe davisiae Frederick W. Oettinger 1967-8-3 230 Siskiyou Borner at the N. end of Diamond Lake. The Salmon Mtns. High lake basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2073 Comment
  CAS-BOT-BC58258  Leucothoe davisiae W. R. Dudley 1901-8-23 s.n. Siskiyou Rocky Peak. Salmon Mts. 2133 Comment
  HSC86280  Lewisia cotyledon J. O. Sawyer 1983-7-7 4234 Siskiyou On trail from Bunn's Basin to Medicine Mtn. 1707 Comment
  CAS-BOT-BC444053  Lewisia cotyledon var. cotyledon John Thomas Howell 1939-8-3 14954 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC444052  Lewisia cotyledon var. cotyledon Geo. D. Butler 1990-7-20 960 Siskiyou Highland Mine 1828 Comment
  CAS-BOT-BC444055  Lewisia cotyledon var. cotyledon Doris K. Kildale 1928-8-19 6538 Siskiyou Top of divide between English & Hancock Lake on trail to Marble Mt. 2194 Comment
  UCD13276  Lewisia leeana K. F. Mawdsley 1996-7-9 10 Siskiyou California, Siskiyou County. Russian Wilderness in Klamath NF. T40N, R9w, NW 1/4 of Section 19, Eaton Peak 7.5 topo. Elevation 6680. Comment
  RSA601899  Lewisia nevadensis L. C. Wheeler 1935-7-23 3682 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Mud Springs, Middlehell Creek. 2011 Comment
  JEPS84276  Lewisia triphylla L. R. Heckard with J. Hickman et al. 1986-7-17 6540 Siskiyou se Condrey Mt. (road end area and camp overlookin s end of Alex Hole) 1980 Comment
  UC569420  Leymus triticoides H. S. Yates 1936-6-21 5814 Siskiyou 6 mi n Gazelle; Yreka Quadrangle 792 Comment
  UCD65601  Leymus triticoides Mr. Roseman 1913-1 12 Siskiyou Butte Valley. Comment
  HSC67705  Ligusticum californicum John S. Palmer 1980-7-24 605 Siskiyou Elk Hole 1503 Comment
  RSA377128  Lilium M. B. Dunkle 1944-7-12 9085 Siskiyou Siskiyou National Forest Comment
  CAS-BOT-BC508255  Lilium columbianum Geo. D. Butler 1910-7-20 886 Siskiyou Highland Mine Comment
  HSC44999  Lilium kelleyanum J. P. Smith, Steve Selva 1970-7-17 4448 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC76742  Lilium kelleyanum K. T. Stillman 1976-7-15 269 Siskiyou Marble Mtn. Wilderness Area 1951 Comment
  UC1190146  Lilium pardalinum Ira L. Wiggins 1955-7-21 13425 Siskiyou 7 mi above Cecilville on South Fork Salmon River (near Mt. View Ranch); South Fork Salmon River 975 Comment
  RSA78677  Lilium pardalinum Philip A. Munz 1952-7-2 17870 Siskiyou Road to Baldy Mountain, northwest of Happy Camp, Siskiyou Mountains 1220 Comment
  JEPS96802  Lilium pardalinum subsp. shastense Dean W. Taylor 1999-8-12 17305 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley), creek crossing on logging road 1341 Comment
  CAS-BOT-BC133028  Lilium washingtonianum subsp. purpurascens Wayne Roderick 1967-7-23 s.n. Siskiyou Between Lily Pad Lake and Cook & Grass Pass 1676 Comment
  SJSU6496  Lilium washingtonianum subsp. purpurascens R. W. Trivelpiece 1972-6-24 129 Siskiyou near Slater Butte 3 mi E of Klamath River c. 7 mi N of Happy Camp 1158 Comment
  UC1334271  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer and Ira L. Wiggins 1940-7-5 9 Siskiyou 3.5 mi ne Mount Shasta (town) 1402 Comment
  CAS-BOT-BC278075  Limnanthes alba Peter F. Zika 2012-5-14 25854 Siskiyou I-5 southbound, near exit 730 for central Dunsmuir, Klamath Range (KR) 750 Comment
  SEINET7073522  Linanthus A. G. Vestal 1963-6-1 s.n. Siskiyou About 3.6 miles northwest of Route 97. UTM Zone 10, 547050mN, 4588388mN. Coordinate datum: NAD27. Comment
  RSA139035  Linaria dalmatica T. C. Fuller 1960-6-30 4649 Siskiyou Mt. Hebron-Medicine Lake Road, just E/Rock Rock School Rd. Comment
  CAS-BOT-BC240392  Linnaea borealis subsp. longiflora W. R. Dudley 1899-8-14 s.n. Siskiyou Near McCloud Comment
  RSA0087563  Linnaea borealis subsp. longiflora Robert F. Thorne 1969-8-2 63329 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, vicinity of English Peak. Trail to upper English Lake, opposite jct. with Grant Creek. Comment
  HSC61141  Linum lewisii Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  RSA187335  Linum lewisii H. A. Thomas, John H. Thomas 1954-7-25 4538 Siskiyou Salmon Trinity Mts, Vicinity of Rush Lake and Rush Creek Meadow, 9 miles E of Cecilville. 1829 Comment
  UC1190127  Listera convallarioides Ira L. Wiggins 1955-7-23 13470 Siskiyou China Creek 1097 Comment
  HSC30487  Listera convallarioides Frederick W. Oettinger 1969-8-12 1334 Siskiyou Salmon Mountains, at the Cedars, along Main N Fork Trail between Yellow Dog Creek and Abbott's Lower Cabin 960 Comment
  CAS-BOT-BC36009  Lithocarpus densiflorus var. densiflorus Marion Ownbey; Fred G. Meyer 1940-7-8 2231 Siskiyou Siskiyou Mountains, 17 miles north of Happy Camp. Comment
  POM301573  Lithocarpus densiflorus var. densiflorus Marion Ownbey, F. G. Meyer 1940-7-8 2231 Siskiyou Siskiyou Mountains, 17 miles north of Happy Camp. Comment
  RSA697649  Lithocarpus densiflorus var. echinoides Leo Miller 1938-07 s.n. Siskiyou Siskiyou Mnts. 1006 Comment
  CAS-BOT-BC36533  Lithocarpus densiflorus var. echinoides C. Hart Merriam 1925-10-5 s.n. Siskiyou Western slope between Montgomery Creek and Burney Comment
  UC164981  Lithophragma Geo. D. Butler 1910-5-8 1307 Siskiyou near Yreka 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
  JEPS47678  Lithophragma campanulatum W. L. Jepson 1907-7-5 2825 Siskiyou Marble Mt. 2133 Comment
  UC402464  Lithophragma campanulatum Harley P. Chandler June, 1901 1608 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges, near Marble Mountain 2133 Comment
  HSC44954  Lithophragma glabrum J. O. Sawyer 1978-6-16 3219 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  HSC838  Lithophragma glabrum William J. Ferlatte 1967-7-9 695 Siskiyou Kidd Creek Trail 1982 Comment
  SEINET6032568  Lithophragma glabrum G. D. Butler 1910-3-18 1132 Siskiyou Block 5, Yreka Comment
  CHSC36161  Lithophragma parviflorum K. Bridwell 1978-4-15 90 Siskiyou Along Copco Rd and n bank of Irongate Reservoir (upper Klamath River), ca. 15 mi ne of Hornbrook. 762 Comment
  UC196955  Lolium multiflorum Geo. D. Butler 1909-6-7 828 Siskiyou along creek near Yreka Comment
  JEPS97016  Lomatium engelmannii Dean W. Taylor 1997-6-12 16063 Siskiyou hillslopes at base of Scott Mountains at mouth of Willow Creek, Shasta Valley; ca. 4 miles west of Gazelle 944 Comment
  CHSC42618  Lomatium macrocarpum Vernon Oswald 1986-5-29 2071 Siskiyou Hwy 97 between Dorris and Macdoel, 46.2 mi ne of Weed. 121 Comment
  RSA184690  Lomatium macrocarpum Gilbert Muth 1966-7-22 440 Siskiyou Marble Rim, Marble Mountains 2195 Comment
  SD88481  Lomatium macrocarpum Darley F. Howe 1972-7-4 4867 Siskiyou Stoney hilltop south of Del Norte, Marker on road to Youngs valley, Sanger Pass Road 1735 Comment
  UC1037477  Lomatium nudicaule Douglas Barbe 1955-7-5 113 Siskiyou 1/2 mi n Etna (on the middle valley road, Klamath Mountains); Klamath Mountains 883 Comment
  POM82355  Lomatium nudicaule Geo. D. Butler 1910-5-18 1359 Siskiyou Near Yreka. Comment
  CAS-BOT-BC217791  Lomatium peckianum Lincoln Constance; Reed C. Rollins 1942-5-14 2918 Siskiyou One mile east of Yreka, Klamath-Siskiyou Region 762 Comment
  JEPS109788  Lomatium tracyi Dean W. Taylor 2002-7-27 18282 b Siskiyou Highway 3 2.3 miles North of Scott Mountain Summit 1386 Comment
  POM82357  Lomatium triternatum Geo. D. Butler 1910-5-21 1380 Siskiyou Klamath hills Comment
  RSA452597  Lomatium triternatum L. C. Wheeler 1935-6-9 3555 Siskiyou Siskiyou Mounatins, Yreka Creek 1220 Comment
  POM67575  Lonicera ciliosa Geo. D. Butler 1910-8-1 1808 Siskiyou Yreka Creek. Comment
  UC61163  Lonicera ciliosa W. A. Setchell, C. C. Dobie 1902-7-26 Siskiyou Sisson Mount Shasta Comment
  UC1174943  Lonicera hispidula var. vacillans P. C. Everett and E. K. Balls 1959-10-24 23943 Siskiyou 3 mi sw Red Bank F.S. Camp (along road from Sawyers Bar to Somesbar) 518 Comment
  SEINET8056669  Lonicera interrupta G. D. Butler 1900-6-17 1571 Siskiyou Near Yreka. Comment
  CAS-BOT-BC243920  Lonicera involucrata var. involucrata M. S. Baker 1925-9-7 120 a Siskiyou Near Soda Sp. Range. Sta. Comment
  CAS-BOT-BC200967  Lotus Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  CAS-BOT-BC200968  Lotus L. R. Abrams 1926-7-4 11229 Siskiyou 1 mile west of Mt. Shasta City on road to Abrams Lake Comment
  CDA27194  Lotus crassifolius T. C. Fuller 1967-6-29 16039 Siskiyou South side of Deetz Road, 1 mile west of IS-5 at Black Butte. 0 Comment
  JEPS100701  Lotus nevadensis var. nevadensis Dean Wm. Taylor with Glenn Clifton 1990-6-12 10874 Siskiyou Adobe Flat Reservoir, ca. 5 miles N of Timbered Crater, 1075 Comment
  JEPS55532  Lotus nevadensis var. nevadensis W. L. Jepson Jul 1894 13797 Siskiyou w of Mt. Shasta; Upton Comment
  UC61648  Lotus oblongifolius var. oblongifolius Geo. B. Grant Sep 1902 5236 Siskiyou Shasta Springs Mount Shasta 609 Comment
  UC1408890  Lotus purshianus var. purshianus F. W. Oettinger and R. F. Thorne 1969-8-5 1215 Siskiyou Abbott's Upper Cabin, w Siskiyou County Salmon Mountains 1524 Comment
  UC75216  Lotus purshianus var. purshianus Copeland 1903-7-6 3495 Siskiyou Hornbrook Comment
  UC454612  Lotus stipularis I. J. Condit 1911-7-8 Siskiyou Shasta Retreat 762 Comment
  CAS-BOT-BC140206  Luetkea pectinata Wm. Bridge Cooke 1938-9-8 11635 Siskiyou Springs in The South Gate; in the South Gate and around the upper portion of the Squaw Creek Meadows Comment
  CAS-BOT-BC140250  Luetkea pectinata Maxine Wilkes 1940-8-1 s.n. Siskiyou Cliff Lake, Marble Mts. Comment
  SD87754  Luina hypoleuca Frank W. Peirson 1926-7-10 7021 Siskiyou Yreka; mountain range west of Yreka 1370 Comment
  CDA27358  Lupinus albicaulis T. C. Fuller 1974-9-24 20030 Siskiyou Summit of Siskiyou Mountains above Reeves Ranch Spring. 0 Comment
  JEPS85697  Lupinus albicaulis Geo. D. Butler 1909-6-23 913 Siskiyou Goose Nest Comment
  OBI59147  Lupinus albifrons Rhonda Riggins 1993-6-16 1685 Siskiyou Greenhorn Park off Greenhorn rd in Yreka Comment
  CAS-BOT-BC195957  Lupinus albifrons var. albifrons Mrs. H. C. Cantelow 1936-5-20 s.n. Siskiyou Near Fort Jones Comment
  RSA104556  Lupinus andersonii var. andersonii Leland S. Smith 1913-5-4 62032 Siskiyou Hornbrook Comment
  UC562841  Lupinus angustiflorus Elmer I. Applegate 1923-8-18 3877 Siskiyou e side Medicine Lake (Redshale Mountain); , e side of Medicine Lake Comment
  UC1303128  Lupinus argenteus A. A. Heller 1928-6-9 14607 Siskiyou near the creamery at Montague Montague Comment
  OBI59150  Lupinus bicolor Rhonda Riggins 1993-6-16 1686 Siskiyou Vacant lot at Main St and Lawrence Dr, Yreka Comment
  UCD107375  Lupinus breweri A. H. Murphy 1953-7-30 KNF 17 Siskiyou Coffee Creek, N. Fork. 2133 Comment
  CAS-BOT-BC215172  Lupinus croceus P. Kenney; Conrad; Dunn 1973-6-4 384 A Siskiyou 6.4 miles W of Callahan, along road from Cecilville to Callahan 1737 Comment
  CAS-BOT-BC215173  Lupinus croceus M. L. Conrad; Dunn; Kenney 1973-6-2 6988 Siskiyou On road to Callahan, 17.4 miles NE of Cecilville Store 2072 Comment
  CAS-BOT-BC215175  Lupinus croceus M. L. Conrad; LeDoux; Kenney 1973-6-2 6981 Siskiyou 6 miles SW of Callahan 1524 Comment
  RSA300987  Lupinus croceus M. L. Conrad, LeDoux, Kenney 1973-6-2 6981 Siskiyou 6 miles southwest of Callahan. 1524 Comment
  SEINET10870978  Lupinus croceus Melvin L. Conrad, David B. Dunn; Patricia L. Kenney 1973-6-2 Conrad 6988 Siskiyou Yellow pine, libocedrus, douglas fir, western hemlock forest, 17.4 mi. Ne of Cecilville store, on rd. To callahan. 2073 Comment
  UC1607589  Lupinus croceus Barbara Ertter 1990-7-14 9330 Siskiyou ca 4 airmi w Mt. Shasta City (Wagon Creek on e-side of Mt. Eddy); e side Mt. Eddy, Wagon Creek 1889 Comment
  CAS-BOT-BC94416  Lupinus croceus R. C. Wenk 2005-7-15 229 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail, near mines around 2103 Comment
  UC1482884  Lupinus croceus var. pilosellus P. Kenney, Conrad and Dunn 1973-6-4 384 A Siskiyou along road from Cecilville to Callahan 6.4 mi w Callahan; w of Callahan 1737 Comment
  RSA413558  Lupinus densiflorus var. densiflorus E. E. Stanford 1930-6-16 1606 Siskiyou Near Hornbrook. Comment
  SEINET10937102  Lupinus klamathensis Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-1 Conrad 6968 Siskiyou E facing slope of road cut at the n edge of hornbrook. 732 Comment
  SDSU4985  Lupinus lapidicola D. F. Howe 1972-7-4 4869 Siskiyou Ranger Peak road, stoney hilltop just south of Del Norte, marker near Youngs Valley. 1737 Comment
  HSC69357  Lupinus latifolius Maralyn A. Renner 1980-8-21 2579 Siskiyou Kidd Creek 2043 Comment
  RSA237940  Lupinus latifolius subsp. viridifolius Frederick W. Oettinger 1968-9-7 768 Siskiyou The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, near Tobacco lake. 1890 Comment
  JEPS83254  Lupinus latifolius var. viridifolius Geo. D. Butler 1908-8-7 373 Siskiyou Whiskey Camp Independence Creek (Independence Creek) 1676 Comment
  UC1481384  Lupinus lepidus var. sellulus D. B. Dunn 1971-8-15 18140 Siskiyou on Hwy 89, 1/2 mi e McCloud Ranger Station Comment
  RSA47605  Lupinus leucophyllus Roxana S. Ferris, Laura Lorraine, Daniel F. Ferris 1948-6-12 11824 Siskiyou East fork of Scott River, lower Plowman's (Noyes) Valley. 1128 Comment
  UC1401211  Lupinus luteolus K. Morris, LeDoux and Dunn 1973-6-2 337 Siskiyou on Hornbrook to Montague road about 1 mi se Hornbrook; se of Hornbrook Comment
  POM10803  Lupinus luteolus E. B. Copeland 1903-7-2 3535 Siskiyou Klamathon Comment
  SEINET10936747  Lupinus luteolus David B. Dunn, Patricia L. Kenney; Douglas G. LeDoux 1973-6-1 Dunn 20638 Siskiyou About 1 mi s of hornbrook. Along the old hwy. Four species of lupinus growing In close proximity. Area under cultivation and pasture. Waste areas by road And along rd cuts. Comment
  UC199283  Lupinus microcarpus var. microcarpus Annie M. Alexander and L. Kellogg 1911-6-4 112 Siskiyou Mayten Comment
  RSA104328  Lupinus obtusilobus A. A. Heller 1920-8-12 13516 Siskiyou A short distance below Horse Camp, Mt. Shasta. Comment
  SBBG45486  Lupinus obtusilobus H. and M. Dearing 1948-9-12 6728 Siskiyou Mount Shasta 2316 Comment
  UC454622  Lupinus obtusilobus I. J. Condit 1911-7-22 Siskiyou Horse Camp Mt. Shasta 2438 Comment
  SEINET10874244  Lupinus obtusilobus Robert T. Clausen, Harold Trapido 1940-7-27 Clausen 4969 Siskiyou In volcanic dust on w side of mountainhouse creek, 5 mi n-ne of summit of mt. Shasta. Sacramento river basin. Flowers violet-blue. 1981 Comment
  RSA0069563  Lupinus onustus Daisie Huang 2006-8-4 06080405 Siskiyou Castle Lake Road. 1326 Comment
  RSA123788  Lupinus polyphyllus subsp. polyphyllus Douglas Barbe 1955-7-5 103 Siskiyou 2.5 miles north of Etna on Greeview Rd. 884 Comment
  RSA183652  Lupinus polyphyllus subsp. superbus Gilbert Muth 1965-8-6 188 Siskiyou Marble Mountains; backside of Black Mountain Comment
  POM24578  Lupinus sellulus subsp. sellulus Geo. D. Butler 1910-6-4 1500 Siskiyou Shackleford Creek. Comment
  RSA50219  Lupinus sellulus subsp. sellulus E. K. Balls 1949-7-8 13926 Siskiyou 1 mile east of Etna (Callahan to Etna Road). 854 Comment
  SEINET10490236  Lupinus sellulus subsp. ursinus Worley 1985-6-1 WORLEY 89 Siskiyou Shast-trinity national forest, scott mtn. 1829 Comment
  SD46405  Lupinus sellulus var. ursinus E. K. Balls, L. W. Lenz 1956-6-18 21799 Siskiyou 7.5 miles southeast of Weed, U. S. Highway 99. 1219 Comment
  NY16013  Lupinus shastensis A. A. Heller 1905-6-13 8024 Siskiyou Near Shasta Spings Comment
  POM26284  Lupinus subvexus var. transmontanus Geo. D. Butler 1910-5-21 1373 Siskiyou Klamath hills Comment
  HSC86563  Luzula comosa D. K. Imper Jul 1989 Siskiyou 8 mi. E of Somes Bar, Haypress Meadows Region 1372 Comment
  CAS-BOT-BC436708  Luzula comosa var. laxa Elmer I. Applegate 1895-5-28 753 a Siskiyou Sisson, Strawberry Valley Comment
  UC843144  Luzula parviflora John Thomas Howell 1939-8-3 15000 Siskiyou Spirit Lake Marble Mts., Spirit Lake 1828 Comment
  HSC31127  Luzula parviflora J. O. Sawyer 1971-8-19 2454 Siskiyou 2012 Comment
  HSC2378  Luzula piperi William J. Ferlatte 1966-8-5 349 Siskiyou Caribou Mtn. 2470 Comment
  CDA40732  Lycopus asper T. C. Fuller 1963-8-27 11165 Siskiyou North shore of Lower Klamath Lake, south side of Dorris-Tulelake Road, 12.4 miles west of Hatfield. 0 Comment
  RSA13893  Machaeranthera shastensis L. C. Wheeler 1934-8-24 3218 Siskiyou Trapper Creek. 1860 Comment
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Aug 14 2017
  UC89538  Madia citriodora K. Brandegee July 1887 Siskiyou Ager Klamath River, Ager Comment
  RSA94363  Madia citriodora J. T. Howell 1934-7-4 12410 Siskiyou Between Timbered Crater and Little Hot Springs Valley Comment
  UC195407  Madia elegans A. A. Heller 1916-8-24 12556 Siskiyou near Sisson 1074 Comment
  CAS-BOT-BC344010  Madia elegans Louis C. Wheeler 1934-6-28 2809 Siskiyou Beaver Creek at West Fork, Siskiyou Mts. 914 Comment
  HSC30476  Madia elegans Frederick W. Oettinger 1969-8-10 1328 Siskiyou At Ft. Jones Comment
  UC1212558  Madia elegans Francia Chisaki, Helen K. Sharsmith 1959-8-20 4737 Siskiyou ca. 4 mi w of Callahan; Wildcat Creek road Comment
  CAS-BOT-BC344540  Madia exigua Lewis S. Rose 1945-6-18 45066 Siskiyou Horse Creek & Klamath River 502 Comment
  CAS-BOT-BC334665  Madia glomerata Louis C. Wheeler 1934-8-24 3216 Siskiyou Trapper Creek, Siskiyou Mountains 1859 Comment
  RSA237501  Madia gracilis subsp. gracilis Frederick W. Oettinger 1969-8-18 1433 Siskiyou Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  SEINET11812404  Madia madioides C. G. Pringle 1882-8-28 s.n. Siskiyou about Mt. Shasta Comment
  RSA28129  Madia minima Elmer I. Applegate 1936-5-18 10319 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  CAS-BOT-BC512763  Maianthemum racemosum subsp. amplexicaule Alice Eastwood 1921-7-31 s.n. Siskiyou Shasta Springs Comment
  POM109347  Maianthemum racemosum subsp. amplexicaule Geo D. Butler 1910-6-19 1587 Siskiyou Goosenest Mountain 1524 Comment
  CAS-BOT-BC514182  Maianthemum stellatum H. E. Brown 1897-6-1 340 Siskiyou Near Mount Shasta 2133 Comment
  CAS-BOT-BC514185  Maianthemum stellatum Wm. Bridge Cooke 1938-7-1 11148 Siskiyou Mount Shasta, Below Wagon Camp 1706 Comment
  RSA434910  Malva neglecta Louis C. Wheeler 1934-9-18 3278 Siskiyou Dutch Creek off Klamath River. Siskiyou Mts., Siskiyou Co. (Mt.Diablo Mer.) 701 Comment
  SEINET516141  Malva neglecta Vernon H. Oswald 1998-9-16 9643 Siskiyou Hwy. 161 at the Lower Klamath NWR 5.9 mi east of Hwy. 97. 1244 Comment
  CHSC88106  Matricaria discoidea Jenny Marr 1993-7-1 116 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC71457  Medicago lupulina J. P. Smith 1973-5-5 6386 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  RSA239036  Melica aristata Frederick W. Oettinger 1969-9-4 1663 Siskiyou North side of Tom Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  POM198350  Melica californica Geo D. Butler 1909-5-26 824 Siskiyou Hill near Yreka. Comment
  SEINET192916 Image available Melica californica L. Constance, RC Rollins 1942-5-14 2934 Siskiyou Shasta River 6 mi N of Yreka Klamath-Siskiyou Region 762 Comment
  UCD87010  Melica californica A. H. Murphy 1953-7-29 KNF 13 Siskiyou Klamath National Forest. Steavale Canyon, 1524 Comment
  UC1222353  Melica fugax Joseph P. Tracy 1951-6-16 19479 Siskiyou Takilma-Happy Camp Road Siskiyou Mts. (summit of Siskiyou Mts, about 3 mi s of Calif State Line) Comment
  CHSC4362  Melica geyeri J. Potter 1966-5-14 Siskiyou 3 mi se of Callahan Old Oregon Stage Rd. Comment
  JEPS25669  Melica geyeri Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7312 Siskiyou 4 air mi nne Preston Peak (Twin Valley, watershed of Indian Creek); Siskiyou Mts., Twin Valley, Indian Creek 1493 Comment
  POM114778  Melica spectabilis Geo D. Butler 1910-4-19 1196 Siskiyou Yreka Comment
  POM198425  Melica subulata Geo D. Butler 1910-7-12 1751 Siskiyou Shackleford Lake. 1372 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
  SBBG14878  Mentzelia A. I. Richardson 1961-6-8 16 Siskiyou Big Springs Rd N of jct with Hwy 97 914 Comment
  CAS-BOT-BC428550  Micranthes aprica A. A. Heller 1915-7-15 12081 Siskiyou Mt. Eddy 2072 Comment
  CAS-BOT-BC429150  Micranthes odontoloma Freed Hoffman 1951-7-12 4033 Siskiyou Western Siskiyou County, Marble Mountains. Hammond's Stock-raising Camp, on Kelsey Creek, about 8 mi. above Scott River 1524 Comment
  CAS-BOT-BC429298  Micranthes tolmiei Wm. Bridge Cooke 1938-8-22 11556 Siskiyou Mount Shasta. West slope of Shastina. Comment
  POM33357  Micropus californicus var. californicus Geo D. Butler 1910-5-7 1297 Siskiyou Yreka. Comment
  RSA733882  Microseris laciniata subsp. detlingii K. L. Chambers 1998-6-16 6132 Siskiyou Copco Road, west of Iron Gate Reservoir, 1.2 miles north from the Klamath River bridge at Iron Gate Dam Comment
  CAS-BOT-BC349376  Microseris nutans Elmer I. Applegate 1935-6-8 9417 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  JEPS35713  Microseris nutans W. L. Jepson 1907-7-5 2829 Siskiyou Marble Mt. 2133 Comment
  UC564178  Microseris nutans Elmer I. Applegate 1935-6-7 9417 Siskiyou Bear Paw Cave Lava Beds National Monument Comment
  UC829638  Microseris nutans John Thomas Howell 1937-7-22 13266 Siskiyou near Big Flat; South Fork of Salmon River 1524 Comment
  UCD77864  Microseris nutans Robert E. Preston 2002-6-20 1838 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope. 1946 Comment
  UCD20187  Microsteris gracilis J. DiTomaso 2002-5-17 s.n. Siskiyou 8 miles NE of Montague. On York Road., 300 m east of intersection with Mulloy Rd. Comment
  SEINET12345976  Mimulus H. P. Chandler 1901-1 1641 Siskiyou Marble Mountain, North Coast Ranges 2438 Comment
  CDA41682  Mimulus alsinoides D. Osterhandt & D. H. Shaw 1978-3-31 s.n. Siskiyou Between Forks of Salmon and Somes Bar. 0 Comment
  HSC45047  Mimulus breweri J. O. Sawyer 1978-6-19 3257 Siskiyou Marble Mountain Wilderness Area; along trail in Bug Gulch 1524 Comment
  HSC72392  Mimulus cardinalis J. P. Smith, Steve Selva 1970-7-16 4372 Siskiyou Along FS Rd. 19N01 Comment
  UC609342  Mimulus guttatus Eleanor Burks Hart 1938-8-25 947 Siskiyou Upper Wright Lake 2225 Comment
  RSA447943  Mimulus guttatus M. B. Dunkle 1945-1 9293 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  JEPS2965  Mimulus layneae W. L. Jepson 1940-7-1 20078 Siskiyou 6 mi e McCloud; McCloud River, Fowlers Camp 975 Comment
  JEPS8211  Mimulus layneae Willis L. Jepson 1894-8-9 71 m Siskiyou betweeen Sims and Sisson; Upper Sacramento Region Comment
  HSC99273  Mimulus layneae D. M. Thompson 1989-6-29 1023 Siskiyou Near Black Butte, mid-way between Mt. Shasta city and Weed. 1.2 mi. N of I-5 interchange along N part of Truck Village Dr. (E side of I-5) 1201 Comment
  UC164261  Mimulus lewisii Geo. D. Butler 1908-8-8 435 Siskiyou Marble Valley Comment
  CHSC1764  Mimulus moschatus V. Holt 1932-6-29 Siskiyou Castle Lake. 1981 Comment
  JEPS32001  Mimulus nanus var. nanus W. B. and V. G. Cooke 1963-7-10 34263 Siskiyou n side Mt. Shasta (Bolam Road) Comment
  UC125155  Mimulus pilosus Dr. E. B. Copeland 1903-7-3 3529 Siskiyou Klamathon Comment
  UC454789  Mimulus primuloides I. J. Condit 1909-8-22 Siskiyou Sisson Comment
  UC535784  Mimulus primuloides Elmer I. Applegate 1923-8-17 3833 Siskiyou w end Medicine Lake Comment
  HSC77097  Mimulus tilingii K. T. Stillman 1976-8-7 366 Siskiyou Marble Mtn. Wilderness Area, trail to Marble Valley Guard Station Comment
  UC1213802  Minuartia douglasii Jean Langenheim 1957-5-19 4347 Siskiyou intersection of Miner's Creek Rd and Tiger Creek Road Comment
  HSC68418  Minuartia nuttallii subsp. gregaria Maralyn A. Renner 1980-6-9 846 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  CAS-BOT-BC181107  Minuartia nuttallii var. gregaria Gilbert J. Muth 1969-8-10 1352 Siskiyou Red Mountain Ridge 2316 Comment
  CAS-BOT-BC540350  Minuartia rubella Dana York 2012-7-20 3127 Siskiyou Siskiyou Mountains: Rogue River, Siskiyou National Forest, ca. 270 m W of Echo Lake (slopes above lake) 1800 Comment
  RSA276571  Mirabilis greenei George Pilz 1973-5-26 997 Siskiyou Along the Klamath River, 1 mile W of I-5, along Route 96 700 Comment
  HSC62312  Mitella breweri Al Hobart 1968-6-23 Siskiyou Youngs Valley 1524 Comment
  JEPS1215  Mitella caulescens Freed Hoffman 1951-7-11 4034 b Siskiyou Hammond's Stock-raising Camp Marble Mountains, Kelsey Creek (about 8 mi above Scott River, w Siskiyou Co.) 1524 Comment
  CAS-BOT-BC433063  Mitella pentandra Gilbert Muth 1966-7-8 375 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CAS-BOT-BC433065  Mitella pentandra Doris K. Kildale 1928-8-19 6553 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  CAS-BOT-BC433062  Mitella pentandra Wm. Bridge Cooke 1938-9-8 11656 Siskiyou Mount Shasta. Squaw Creek, Heather Meadows. On the banks of the Squaw Creek. Also at Panther Creek. Comment
  RSA184754  Mitella trifida Gilbert Muth 1966-7-17 400 Siskiyou Trail to lookout. Marble Mtns. 1799 Comment
  HSC55039  Moehringia macrophylla Marvin Butler 1971-7-6 39 Siskiyou Near El Capitan, close to Cave Junction 1524 Comment
  JEPS46134  Moehringia macrophylla Duncan Dunning 1922-6-5 Siskiyou nw Fort Jones (Moffett Creek); Moffett Creek Comment
  SEINET3996519 Image available Monardella odoratissima R. Tofsrud, J. M. Tucker 1948-8-2 1757 Siskiyou Ca. 2 miles south of McCloud Comment
  UC2035811  Monardella odoratissima subsp. glauca Carl B. Wolf 1934-7-4 5944 Siskiyou Klamath River, Horse Creek - Dry Lake Lookout, Siskiyou Mts., 13 1/2 mi from Horse Creek Bridge. 1524 Comment
  HSC159  Monardella odoratissima subsp. pallida William J. Ferlatte 1966-8-3 246 Siskiyou Big Flat, near public campground 1524 Comment
  UC2035850  Monardella odoratissima subsp. pallida C. L. Hitchcock, J. S. Martin 1939-7-6 5213 Siskiyou Takilma-Happy Camp road 1676 Comment
  CAS-BOT-BC220236  Monardella sheltonii Dr. E. B. Copeland 1903-7-6 3497 Siskiyou Hornbrook Comment
  SEINET10582373  Monardella siskiyouensis A. Graff 1993-7-24 Graff 356 Siskiyou Klamath National Forest. Hwy. 96, .45-2.8 miles east from junction with Hwy. 263, on right roadside. Infrequent on bare serpentine. End of bloom. Comment
  CAS-BOT-BC453478  Monotropa hypopitys Volney Rattan 1879-6-1 s.n. Siskiyou Klamath Comment
  JEPS43326  Montia linearis J. W. Kisling 1910-1 Siskiyou Edgewood Comment
  LA95001  Montia parvifolia J. M. Tucker; L. K. Mann 1963-7-4 3696 Siskiyou vicinity of U.S. Forest Service Public Camp, just E of Finley Camp, rd from Etna to Sawyer's Bar Comment
  HSC60462  Muhlenbergia andina William J. Ferlatte 1966-8-3 277 Siskiyou Josephine Lake basin 1677 Comment
  HSC30599  Muhlenbergia filiformis Frederick W. Oettinger 1968-8-22 592 Siskiyou Ridge between Diamond Lake and English Peak, Salmon Mountains. 2195 Comment
  UC618870  Muhlenbergia jonesii W. Bridge Cooke 1938-7-29 11413 Siskiyou near borders on meadow Mount Shasta, Wagon Camp Comment
  UCR21088  Muilla transmontana T. W. Fisher, Earl Oatman, R. E. Orth 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  CHSC71288  Myosotis discolor Vernon H. Oswald; Lowell Ahart 1998-6-11 9211 Siskiyou Old State Hwy. 0.5 mi west of Bray, ca. 10 air mi east of Grass Lake located on Hwy. 97, ca. 23 air mi northeast of Weed. Along a roadside ditch on the edge of the meadow. 1414 Comment
  SEINET209083 Image available Myriophyllum sibiricum L. C. Wheeler 1935-6-23 3591 Siskiyou Shasta River 2 mi NW Montague. 762 Comment
  JEPS44091  Nama densa W. B. and V. G. Cooke 1965-7-12 35194 Siskiyou Bolam Road , Bolam Road (Mt. Shasta) 1706 Comment
  HSC12275  Nama lobbii Richard Spjut 1970-7-18 468 Siskiyou 8 mi. E of Mt. Shasta just off Hwy. 89 1220 Comment
  UC61055  Nama lobbii W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sissons Mount Shasta (Mount Shasta); , Sissons Comment
  HSC564  Narthecium californicum William J. Ferlatte 1967-6-27 530 Siskiyou Big Flat, between campground and S Fork of the Salmon River 1524 Comment
  POM148757  Narthecium californicum J. B. Feudge 1927-7-24 1629 Siskiyou On trail to Mt. Eddy Comment
  HSC60809  Navarretia capillaris Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley. 1220 Comment
  RSA238005  Navarretia capillaris Frederick W. Oettinger, R. F. Thorne 1969-8-8 1306 Siskiyou Near English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC163990  Navarretia intertexta Geo. D. Butler 1908-7-5 107 Siskiyou near Yreka Comment
  JEPS81654  Navarretia leucocephala subsp. leucocephala L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2298 Siskiyou on US Hwy 97 0.8 mi s Bray junction; Murphy Wells 1493 Comment
  UCSC000576  Nemophila parviflora I. J. Condit 2011-7-3 s.n. Siskiyou Shasta Retreat, Bank of Sacramento River Comment
  CAS-BOT-BC230560  Nemophila parviflora var. austiniae Harley P. Chandler 1901-6-1 1649 Siskiyou Marble Mountain 2286 Comment
  HSC20458  Nicotiana attenuata D. M. Thomson 1965-8-4 163 Siskiyou Lava Beds National Monument, Black Crater trail, close to main road Comment
  POM254350  Noccaea fendleri subsp. glauca C. L. Hitchcock, J. S. Martin 1939-7-7 5278 Siskiyou Whiskey Lake, 1/2 mile above Camp Chicago, on Sanger Peak Trail 1463 Comment
  CDA18414  Noccaea fendleri subsp. siskiyouense G. D. Barbe, T. C. Fuller & J. T. Howell 1980-4-29 2653 Siskiyou Klamath Ranges; Schoolhouse Hill, summit of Gazelle-Callahan Road, 7 miles (11.3 km) east of Callahan. 1173 Comment
  HSC48295  Nothochelone nemorosa Ken Stillman, J. O. Sawyer 1978-7-6 1034 Siskiyou Along Happy Camp-O'Brien Rd. above Louse Creek Comment
  HSC99297  Nothochelone nemorosa G. L. Clifton, Terry Griswold 1979-6-28 6113 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  UCR198250  Nothochelone nemorosa Dean Kelch 2007-7-25 07- 495 Siskiyou Indian Creek Road, just south of Greyback Summit 1304 Comment
  SD88339  Nothochelone nemorosa Darley F. Howe 1972-7-7 Siskiyou 1.4 miles south of Oregon state line on road to Happy Camp 1646 Comment
  JEPS83887  Nuphar lutea subsp. polysepala Wayne Roderick 1976-7-1 Siskiyou vicinity of Cooke & Green Pass (Siskiyou Mountains, Lily Pad Lake); Siskiyou Mountains, Lily Pad Lake 1706 Comment
  UCD106834  Oenothera cespitosa Geo C. Wood 1940-4-29 s.n. Siskiyou Butte Valley. Comment
  RSA273347  Olsynium douglasii var. douglasii J. P. Smith 1974-5-26 7566 Siskiyou Along Forest Service Road 47N03 1524 Comment
  CDA7574  Onopordum tauricum T. C. Fuller 1961-5-16 6952 Siskiyou F. Voelker property, just south of Sam s Neck, west edge of Meiss Lake Basin, ca. 15 miles southwest of Dorris. 0 Comment
  CDA7579  Onopordum tauricum T. C. Fuller 1959-12-1 3324 Siskiyou Fred Voelker ranch, west edge of Meiss Lake Basin, just south of Sam s Neck, ca. 15 miles southwest of Dorris. 0 Comment
  CAS-BOT-BC56841  Opuntia fragilis Carl B. Wolf 1941-7-26 11074 Siskiyou Field redacted by CAS, contact the data manager for more information 883 Comment
  SEINET8225553  Oreostemma alpigenum J. Kierstead 1990-7-18 90 -103 Siskiyou Mt. Shasta Ranger Dist.; Gumboot Creek, south side of Mt. Eddy, 100 yards wouth of Forest Service Rd. 40N26. 1676 Comment
  SEINET8384039  Oreostemma alpigenum Wayne Rolle 1989-7-18 272 Siskiyou at south end of Azalea Lake. 1646 Comment
  CAS-BOT-BC355597  Oreostemma alpigenum var. andersonii David D. Keck 1938-8-8 4868 Siskiyou At Trinity Co. line: Scott Mountain Divide, between Scott Mtn. and Craggy Peak 1675 Comment
  HSC34269  Oreostemma alpigenum var. andersonii J. P. Smith, J. O. Sawyer 1973-8-14 7319 Siskiyou W of Cliff Lake 1982 Comment
  UC1177881  Orobanche fasciculata Francia Chisaki and Gene B. Newcomb 1958-6-22 1154 Siskiyou On Highway #99, at base of Black Butter, (south of Weed). Comment
  RSA75605  Orobanche uniflora Albert M. Vollmer, L. Beane 1951-6-2 83 Siskiyou Happy Camp, Klamath River Hwy. Comment
  UC1024069  Orobanche uniflora subsp. occidentalis Dorothy Parker 1954-4-12 612 Siskiyou Siskiyou Mountains near Callahan. Comment
  HSC65561  Orthilia secunda R. White 1977-7-21 130 Siskiyou Slope below outlet of Raspberry Lake. 1512 Comment
  CAS-BOT-BC458088  Orthilia secunda A. A. Heller 1914-8-28 11743 Siskiyou Mt. Eddy, east side 1828 Comment
  CHSC20419  Orthocarpus cuspidatus subsp. copelandii L. M. Mayer 1974-7-1 308 Siskiyou Along ridgetop, se of Shadow Lake. Marble Mountain Primitive Area. Comment
  UCR101775  Orthocarpus cuspidatus subsp. copelandii L. C. Wheeler 1958-8-21 7412 Siskiyou Siskiyou Mountains, Lily Pad Lake, head W Fork Seiad Creek 1820 Comment
  SFV3406  Orthocarpus cuspidatus subsp. copelandii J. M. Tucker, L. K. Mann 1963-8-17 3741 Siskiyou Marble Mountain Wilderness Area. Beside trail from Red Rock Valley to top of ridge to south, and near top of ridge. 1860 Comment
  RSA749251  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
  HSC4882  Osmorhiza occidentalis J. O. Sawyer 1968-7-23 617 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  POM133073  Osmorhiza occidentalis Geo. D. Butler 1910-7-7 1668 Siskiyou Shackleford Creek 1220 Comment
  UCD127817  Oxypolis occidentalis A. A. Heller 1915-8-24 12204 Siskiyou Metcalf's ranch, northeast base of Mount Eddy. 1188 Comment
  JEPS30369  Packera cana Peter H. Raven 1962-5-30 17901 Siskiyou 8.3 mi n Weed (U.S. Highway 97) 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-BC28836  Paeonia brownii H. E. Brown 1897-7-15 564 Siskiyou South side of Mount Shasta 3048 Comment
  HSC74834  Panicum capillare var. capillare J. P. Smith, J. O. Sawyer 1978-7-3 10003 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  RSA238306  Parnassia californica Frederick W. Oettinger 1967-8-21 310 Siskiyou Northwest of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1878 Comment
  POM210931  Parnassia californica Louis C. Wheeler 1934-8-14 3127 Siskiyou North side White Mountain; Siskiyou Mountains. Mt. Diablo Mer. 1768 Comment
  CAS-BOT-BC175604  Parnassia palustris Copeland 1903-9-6 3860 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC202847  Paxistima myrsinites Alice Eastwood 1917-9-2 6681 Siskiyou Shasta Springs Comment
  CAS-BOT-BC202851  Paxistima myrsinites A. A. Heller 1905-6-5 7976 Siskiyou Along the Sacramento River near/between Shasta Retreat and Shasta Springs 731 Comment
  SBBG4073  Paxistima myrsinites K. K. Muller 1954-6-23 647 Siskiyou Siskiyou Mtns 1.8 mi below summit, 3.5 mi S of Oregon line on rd to Happy Camp Comment
  UC1185941  Paxistima myrsinites L. E. Detling 1950-6-9 6598 Siskiyou Black Butte Summit (Hwy. 99) 1188 Comment
  JEPS128456  Pectiantia pentandra Julie Kierstead Nelson with Martin Lenz 2015-6-18 2015 -057 Siskiyou Headwaters of West Fork Parks Creek, 2 miles NNE of China Mountain; 7 miles W of town of Weed. Comment
  JEPS10414  Pedicularis bracteosa var. flavida Geo. D. Butler 1910-7-10 1735 Siskiyou Shackleford Creek; Upper Campbell Lake 1524 Comment
  UC1409425  Pedicularis bracteosa var. flavida Frederick W. Oettinger 1968-8-3 378 Siskiyou High Lake Basins in vicinity of English Peak (in base camp meadow); Salmon Mountains, Marble Mountain Wilderness Area 2011 Comment
  HSC29251  Pedicularis contorta Frederick W. Oettinger 1968-8-22 599 Siskiyou Marble Mtn. Wilderness Area, below Diamond Lake on way to English Peak 2226 Comment
  HSC20918  Pedicularis densiflora Dorothy Parker 1949-5-26 Siskiyou Sugar Creek, Salmon Mtns. range 1677 Comment
  UC886599  Pedicularis densiflora A. A. Heller 1915-7-15 12085 Siskiyou Mount Eddy 2072 Comment
  POM43422  Pedicularis flavida Geo. D. Butler 1910-7-10 1735 Siskiyou Upper Campbell Lake, Shackleford Creek. 1524 Comment
  RSA0018475  Pedicularis howellii James R. Shevock 2012-7-20 40552 Siskiyou Rocky slope above Echo Lake on ridge, east of Red Buttes Wilderness and west of Cook and Green Pass, Applegate River Drainage. 1777 Comment
  JEPS84022  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
  HSC12277  Pedicularis racemosa R. W. Spjut 1970-7-17 448 Siskiyou 16 mi. W of Mt. Shasta at Gumboot Lake, NW corner of lake 1829 Comment
  CAS-BOT-BC67678  Pellaea brachyptera Lincoln Constance; Reed C. Rollins 1942-5-14 2933 Siskiyou Klamath - Siskiyou Region - Shasta River 6 miles north of Yreka. 762 Comment
  CAS-BOT-BC67676  Pellaea brachyptera Louis C. Wheeler 1934-8-30 3227 Siskiyou Siskiyou Mts. - Trapper Creek, Mt. Diablo Mer. 1371 Comment
  CAS-BOT-BC67683  Pellaea brachyptera Louis C. Wheeler 1934-6-21 75592 Siskiyou Klamath National Forest - W. fork of Cottonwood Cr. 1371 Comment
  CAS-BOT-BC67725  Pellaea brachyptera Louis C. Wheeler 1934-8-30 3227 Siskiyou Siskiyou Mts. - Trapper Creek, Mt. Diablo Mer. 1371 Comment
  CAS-BOT-BC67668  Pellaea breweri Geo. D. Butler 1908-8-8 240 Siskiyou Marble Valley Comment
  UCSB51230  Pellaea mucronata Almanza, Ed 1976-7-13 Siskiyou McBride campground, Mt. Shasta 1493 Comment
  HSC74865  Penstemon anguineus J. P. Smith, Jennifer Whipple 1978-7-2 9985 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  JEPS7208  Penstemon anguineus Geo. D. Butler 1908-8-4 432 Siskiyou head of Shackleford Creek 1676 Comment
  CAS-BOT-BC6574  Penstemon anguineus Volney Rattan 1879-6-1 s.n. Siskiyou Klamath River Comment
  RSA151969  Penstemon cinereus R. C. Bacigalupi, L. R. Heckard, G. Bacigalupi, Ruth D. Sanderson 1952-6-18 3740 Siskiyou Near Panther Creek Guard Station, along Little Shasta River, 16 miles E of Montague on forest road to Mount Hebron. 1280 Comment
  CHSC102568  Penstemon davidsonii var. davidsonii L. P. Janeway 2009-8-4 9903 Siskiyou High Cascade Range. Mt. Shasta, north slope; 3.7 air km south-southwest of Northgate Trailhead. 2783 Comment
  RSA183719  Penstemon deustus subsp. deustus Gilbert Muth 1965-8-12 214 Siskiyou Marble Valley, Marble Mts. Comment
  JEPS2927  Penstemon deustus var. deustus W. L. Jepson 1907-7-10 2874 Siskiyou near (12 mi s) Preston Peak (Cedar Camp on Kelsey Trail, w Siskiyou Mts.); w Siskiyou Mts, (Klamath Range*) nr Preston Peak Comment
  SD61023  Penstemon deustus var. pedicellatus Darley F. Howe 1964-8-4 3932 Siskiyou 9 mi. from entrance to Modoc Nat. Forest. Lava Bed Nat. Monument 2042 Comment
  HSC26563  Penstemon gracilentus J. P. Smith, J. O. Sawyer 1972-8-20 5755 Siskiyou Slope of Mt. Hoffman 2134 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
  POM146623  Penstemon gracilentus A. A. Heller 1922-7-15 13691 Siskiyou At Medicine Lake in front of the ranger station. 2134 Comment
  UCD124184  Penstemon gracilentus J. M Tucker 1950-7-23 1939 Siskiyou Mount Shasta, 3.9 miles (by road) west of Panther Meadows. 1828 Comment
  JEPS11463  Penstemon heterodoxus var. shastensis W. L. Jepson 1940-7-3 20106 Siskiyou (5 mi se Bartle) (Large meadow.); Big Bear Flat 1219 Comment
  UCSB15834  Penstemon heterodoxus var. shastensis Breedlove, Dennis 1962-6-11 Siskiyou along State Highway 89; 17.6 miles east of McCloud; Cascade Mountains 1219 Comment
  JEPS101505  Penstemon humilis var. humilis Dean W. Taylor 1997-6-11 16046 Siskiyou Duzel Rock, headwaters Moffett Creek, Scott River drainage 2072 Comment
  JEPS44098  Penstemon laetus var. sagittatus W. B. and V. G. Cooke 1965-7-17 35178 Siskiyou Bolam Road , Bolam Road (Mt. Shasta) 1524 Comment
  JEPS8387  Penstemon laetus var. sagittatus Rimo Bacigalupi with L. R. Heckard, George Bacigalupi Jr., and Ruth D. Sanderson 1952-6-18 3741 Siskiyou on forest road to Mt. Hebron 17 mi e Montague (along Little Shasta River, near Panther Creek Guard Station); along Little Shasta River, rd to Mt. Hebron, e of Montague 1280 Comment
  NY604560  Penstemon laetus var. sagittatus A. A. Heller 1905-6-13 8019 Siskiyou Shasta Springs. Comment
  UC195194  Penstemon laetus var. sagittatus Annie M. Alexander and L. Kellogg 1911-6-5 114 Siskiyou Mayten Comment
  SEINET10547609  Penstemon laetus var. sagittatus Noel H. Holmgren, James L. Reveal 1966-6-9 Holmgren 2678 Siskiyou Us 97, shasta valley, 4 mi n of weed, t42n, r4w, sec 19, in scrub in sandy soil. 1158 Comment
  UC1238952  Penstemon laetus var. sagittatus Freed W. Hoffman 1948-7-8 2566 Siskiyou on Klamath River road 19.7 mi e Happy Camp; North Coast Ranges, Klamath River Road Comment
  SD53335  Penstemon newberryi Darley F. Howe 1962-8-6 3405 Siskiyou Mt. Shasta 2438 Comment
  SDSU10960  Penstemon newberryi D. F. Howe 1962-8-6 3405 Siskiyou Mt. Shasta, Shasta National Forest. 2438 Comment
  CAS-BOT-BC239341  Penstemon newberryi var. berryi W. R. Dudley 1893-6-1 s.n. Siskiyou Castle Crag [Crags], near Mt. Shasta Comment
  CAS-BOT-BC482443  Penstemon parvulus Dana York 2011-8-12 3048 Siskiyou Marble Mountain Wilderness, Klamath National Forest, E-facing slope of Marble Mountain 2055 Comment
  HSC19162  Penstemon parvulus J. O. Sawyer 1969-7-25 1540 Siskiyou SW facing upper slope above Sugar Lake 2210 Comment
  NY677129  Penstemon parvulus D. W. Taylor 1996-7-7 15813 Siskiyou Salmon Mountains; Ruffey Lakes (about 8 air miles southwest of Etna), in cirque above the upper lake; Klamath National Forest 2073 Comment
  UC722754  Penstemon parvulus C. L. Hitchcock, J. S. Martin 1939-7-6 5230 Siskiyou California on Takilma-Happy Camp Road peak above and n of divide of Siskiyou Mts. 1828 Comment
  NY638946  Penstemon procerus var. brachyanthus I. L. Wiggins 1955-7-27 13526 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042.2 Comment
  RSA401848  Penstemon procerus var. formosus M. B. Dunkle 1945-7-19 9221 Siskiyou Marble Valley Summit; rocky ridge. Comment
  CAS-BOT-BC94418  Penstemon roezlii R. C. Wenk 2005-7-15 234 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail 2042 Comment
  RSA60783  Penstemon roezlii Dorothy Parker 1948-6-14 s.n. Siskiyou Rail Creek, Plowman's Valley. 1189 Comment
  HSC26146  Penstemon rupicola J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5687 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  RSA463106  Penstemon shastensis 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
  SBBG19750  Penstemon speciosus H. and M. Dearing 1939-6-4 3542 Siskiyou near Weed Comment
  UC585120  Penstemon speciosus E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1882 Siskiyou about 2 mi s Sheep Rock (n slope of Mt. Shasta on highway from Bray to Weed); n slopes Mt. Shasta 1249 Comment
  NY661038  Penstemon speciosus A. A. Heller 1938-7-12 15249 Siskiyou Along U.S. Highway #97 1066.8 Comment
  RSA114968  Penstemon speciosus E. K. Balls, Lee W. Lenz 1956-6-18 21798 Siskiyou 7.5 mi SE of Weed, US Hwy 99. 1220 Comment
  UC922662  Pentagramma triangularis subsp. triangularis Annie M. Alexander and Louise Kellogg 1948-9-4 5578 Siskiyou half way between Somesbar and forks of Salmon River; Siskiyou Mts Comment
  CAS-BOT-BC222756  Perideridia leptocarpa Geo. D. Butler 1910-8-7 1822 Siskiyou Humbug Mountain 1219 Comment
  SEINET5135939  Perideridia leptocarpa Unknown 1966-6-15 3768 Siskiyou W-facing slope above Trinity River 5 miles NW of Cecilville Comment
  JEPS14096  Perideridia oregana Ruby Van Deventer 1938-7-31 295 Siskiyou trail to Twin Valley 2 mi s Poker Flat (Siskiyou-Del Norte Co. line); Siskiyou Mountains 1280 Comment
  SEINET5845188  Peritoma platycarpa G. D. Butler 1910-5-11 1335 Siskiyou Shasta Valley Comment
  CDA15529  Phacelia bolanderi G. F. Hrusa 1998-7-5 14697 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 4.x. Comment
  UC923134  Phacelia corymbosa Freed W. Hoffman 1950-7-13 3335 Siskiyou Baldy Mountain Lookout North Coast Ranges (w Siskiyou Co.) 1737 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
  SFV3013  Phacelia greenei L. Constance, H. L. Mason, J. F. Davidson, J. M. Tucker 1947-5-17 3200 Siskiyou Summit of northwest spur of Scott Mountain. 1829 Comment
  HSC57388  Phacelia heterophylla Overton, Butler 1979-7-26 10121 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  RSA30625  Phacelia heterophylla subsp. virgata Lincoln Constance, R. C. Rollins 1942-5-14 2927 Siskiyou Shasta River, 4 miles north of Yreka. 762 Comment
  HSC42397  Phacelia heterophylla subsp. virgata Rich White 1977-5-21 72 Siskiyou Junction of Miners Creek Rd. and Rd. 8 , 5.5 mi. W of Callahan. Comment
  POM127629  Phacelia linearis A. M. Alexander, Louise Kellogg 1911-6-13 125 Siskiyou 6 miles northwest Callahan. Comment
  JEPS25833  Phacelia mutabilis Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-19 7447 Siskiyou about 12 mi by air nw Happy Camp; Siskiyou Mts. Poker Flat 1524 Comment
  JEPS84331  Phacelia mutabilis L. R. Heckard with J. Hickman et al. 1986-7-17 6505 Siskiyou e Condrey Mt. (slopes of hole); Alex Hole 1880 Comment
  UC1190246  Phacelia mutabilis Ira L. Wiggins 1955-7-29 13579 Siskiyou summit of ridge above Thompson Creek (trail to Caribou Lake) 1999 Comment
  HSC29254  Phacelia mutabilis Frederick W. Oettinger, R. F. Thorne 1969-8-5 1208 Siskiyou Trail near Willow Springs between Abbotts Upper Cabin and English Lake 1677 Comment
  RSA238836  Phacelia mutabilis Frederick W. Oettinger 1968-8-11 482 Siskiyou Just below Tom Taylor Cabin spring. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  UC1400325  Phacelia pringlei F. W. Oettinger 1969-7-25 Siskiyou near Kangaroo Lake Campground (ca 15 air mi sw of Weed); Shasta-Trinity National Forest, Scott Mts. Comment
  UC909517  Phacelia pringlei Ira L. Wiggins 1950-5-28 12385 Siskiyou ridge just above Grouse Lake (headwaters of Grouse Creek) 1737 Comment
  HSC69293  Phacelia procera Maralyn A. Renner 1980-7-24 2000 Siskiyou Lily Pad Lake 1768 Comment
  HSC78325  Phacelia procera L. P. Janeway 1983-7-24 447 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  POM74214  Phacelia procera Geo. D. Butler 1910-7-8 1679 Siskiyou Shackleford Creek. 1524 Comment
  CAS-BOT-BC159068  Phacelia ramosissima var. eremophila Wm. Bridge Cooke 1940-6-20 15135 Siskiyou Near a spring along the Pacific Highway in Gorge at confluence of Shasta and Klamath Rivers 609 Comment
  CAS-BOT-BC77420  Philadelphus lewisii L. R. Short 1933-6-15 43 Siskiyou Klamath National Forest, Clear Creek 640 Comment
  LA206242  Philadelphus lewisii Louis C. Wheeler; 1934-7-16 2910 Siskiyou Siskiyou Mountains, Oak Knoll Ranger Station, Klamath River 670 Comment
  UCSB13234  Philadelphus lewisii Breedlove, Dennis 1962-6-10 Siskiyou On the north bank of the Klamath River at its junction with Goff Creek; 4.5 miles west of Seiad 411 Comment
  UCD37075  Phleum alpinum Beecher Crampton 1956-8-21 3806 Siskiyou Siskiyou County, 15 miles southwest of city of Mount Shasta, slope above Gumboot Lake, headwater of south fork of Sacramento River. 1920 Comment
  HSC34296  Phleum pratense J. P. Smith, J. O. Sawyer 1973-8-14 7290 Siskiyou Along trail from Log Lake to Campbell Lake 1677 Comment
  UC1037381  Phleum pratense Douglas Barbe 1955-7-5 109 Siskiyou on highway to Fort Jones at Greenview city limits (s side of road); Klamath Mountains 883 Comment
  CDA40296  Phlox adsurgens T. C. Fuller 1958-6-18 1820 Siskiyou Summit of Siskiyou Mountains along road between Cave Junction & Happy Camp. 0 Comment
  RSA78675  Phlox adsurgens P. A. Munz 1952-7-1 17869 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mountains 1067 Comment
  HSC4820  Phlox diffusa J. O. Sawyer 1968-7-23 622 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  HSC69275  Phlox diffusa Maralyn A. Renner 1980-9-1 2681 Siskiyou Bear Mtn. 1936 Comment
  JEPS84256  Phlox diffusa L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6413 Siskiyou ca 5 mi n town of Seiad Valley (cirque at head of Hell's Canyon, e slope of Kangaroo Mountain); Kangaroo Mountain, Hell's Canyon 1828 Comment
  CAS-BOT-BC232826  Phlox hirsuta R. C. Barneby 1954-5-16 11528 Siskiyou 6 miles SW of Yreka Comment
  HSC39318  Phlox speciosa subsp. nitida J. P. Smith 1974-5-26 7382 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC1186128  Phlox speciosa subsp. occidentalis Herbert L. Mason 1929-5-18 5331 Siskiyou s of Yreka Comment
  CAS-BOT-BC171214  Phoradendron serotinum subsp. tomentosum Alice Eastwood 1922-10-18 11512 Siskiyou Shasta Springs Comment
  CAS-BOT-BC56484  Phyllodoce empetriformis G. J. Muth 1969-8-10 1324 Siskiyou Ridge w. of Boulder Peak 2286 Comment
  HSC19153  Phyllodoce empetriformis J. O. Sawyer 1969-7-2 995 Siskiyou Shore of Paynes Lake 1982 Comment
  UC1190116  Phyllodoce empetriformis Ira L. Wiggins 1955-7-27 13543 Siskiyou Salmon-Trinity Alps Primitive Area, Caribou Lake Caribou Lake; Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  UC456184  Phyllodoce empetriformis I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Trinity Mountains, Castle Lake 2133 Comment
  UCD117722  Phyllodoce empetriformis K. F. Mawdsley 1996-7-9 12 a Siskiyou California, Siskiyou County. Russian Wilderness in Klamath NF. Along Little Duck Lake. 2036 Comment
  UCR219537  Phyllodoce empetriformis R. F. Thorne, Frederick W. Oettinger 1969-8-4 63364 Siskiyou Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, vicinity of English Peak 2098 Comment
  CDA5887  Physalis longifolia T. C. Fuller 1966-10-6 15246 Siskiyou Clement ranch, 5 miles north of Montague. 0 Comment
  HSC91033  Physaria occidentalis subsp. occidentalis Jennifer Whipple 1976-6-12 982 Siskiyou S face of Mt. Eddy draining into the N Fork of the Sacramento River 2195 Comment
  CAS-BOT-BC140601  Physocarpus capitatus Doris K. Kildale 1939-8-24 9054 Siskiyou Youngs Valley, trail to Preston Peak 1371 Comment
  CAS-BOT-BC78161  Picea breweriana W. R. Dudley 1901-8-18 s.n. Siskiyou Salmon Mountains Comment
  CAS-BOT-BC78171  Picea breweriana G. D. Hanna; Salem Rice 1952-10-17 s.n. Siskiyou Sanger Lake Comment
  POM230327  Picea breweriana J. T. Howell 1937-7-24 13413 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  RSA6531  Picea breweriana Elmer I. Applegate 1930-8-9 6600 Siskiyou Fruit Mountain, Siskiyou Mountains, Headwaters of Applegate River. Comment
  UC1223745  Picea breweriana G. L. Stebbins Jr. 1963-7-5 Siskiyou ca 7 mi (airline) e Sawyer's Bar (creek is a tributary of Salmon River); Salmon Mountains, Blake's Fork of South Russian Creek 1615 Comment
  UC1409271  Picea breweriana Frederick W. Oettinger 1968-8-13 506 Siskiyou cliffs above Hell Hole (near Hancock Lake, the high lake basins in the vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1935 Comment
  UCD133125  Picea breweriana D. Sanchez-Mata 1997-9-19 s.n. Siskiyou Klamath National Forest. Happy Camp-O'Brien. Indian Creek Road. Jefferson State Scenic Byway. 1470 Comment
  RSA0059701  Picea breweriana J. T. Howell 1937-7-24 13413 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  HSC19112  Picea engelmannii J. O. Sawyer 1969-8-5 1970 Siskiyou Slopes W of South Sugar Creek 1799 Comment
  UCD134308  Picea engelmannii J. M. Tucker 1963-7-5 3707 Siskiyou Lower Blake's Fork of South Russian Creek (a tributary to Salmon River), ca. 7 miles (airline) east of Siskiyou County. 1524 Comment
  UC60967  Pinus albicaulis Geo. B. Grant 1902-9-1 5123 Siskiyou Horse Camp Mount Shasta, Horse Camp 2438 Comment
  CAS-BOT-BC73392  Pinus albicaulis L. A. Siemens 1970-5-9 170 Siskiyou Mt. Shasta - Cascade Ridge 2590 Comment
  CAS-BOT-BC73395  Pinus albicaulis Dr. C. E. Wilson 1930-7-9 s.n. Siskiyou Marble Mt. Comment
  CAS-BOT-BC78324  Pinus attenuata L. E. Smith 1913-6-12 365 Siskiyou Sisson Comment
  HSC29671  Pinus attenuata Frederick W. Oettinger 1968-9-3 685 Siskiyou Marble Mtn. Wilderness Area, near ridge top of 'Rusty Ridge' near where it grades into Frang Peak W of Horse Range Lake, Bulk Collection 52 2012 Comment
  UC1713793  Pinus attenuata W. A. Setchell, C. C. Dobie July 1902 Siskiyou Shasta; se slopes Comment
  NY34644  Pinus attenuata C. G. Pringle 1881-8-17 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
  SEINET11526740  Pinus attenuata D. A. Charlet, T. Charlet 1996-12-15 2350 Siskiyou Mt. Shasta, lower southern slopes along State Highway 89, from a few miles east of McLeod to a few miles west of Bartle. Comment
  CAS-BOT-BC78409  Pinus balfouriana William R. Dudley 1899-8-24 s.n. Siskiyou summit of Craggy Peak 2438 Comment
  HSC4807  Pinus balfouriana J. O. Sawyer 1968-7-9 406 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  HSC31498  Pinus contorta var. murrayana Steve Selva, Roger Jensen 1974-8-16 20 Siskiyou N shore of Sugar Lake. Comment
  HSC69038  Pinus jeffreyi Maralyn A. Renner 1980-8-7 2367 Siskiyou Ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  CAS-BOT-BC73145  Pinus lambertiana Wm. Bridge Cooke 1938-9-2 11598 Siskiyou Sisson Southern Trail. 1524 Comment
  RSA237212  Pinus lambertiana Frederick W. Oettinger 1969-8-24 1538 Siskiyou 0.1 mile north of English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1768 Comment
  UC455188  Piperia elongata I. J. Condit 1911-7-15 Siskiyou tollroad Shasta Springs to McCloud Comment
  UC922362  Piperia unalascensis Annie M. Alexander and Louise Kellogg 1949-7-31 5907 Siskiyou lower end Sky High Valley; Marble Mountains 1767 Comment
  RSA610638  Plagiobothrys greenei L. C. Wheeler 1935-5-18 3496 Siskiyou Siskiyou Mountains; Yreka Creek (Mt. Diablo Mer.) 854 Comment
  UC195644  Plagiobothrys hispidus I. J. Condit 1911-7-22 Siskiyou Sisson Comment
  UC618700  Plagiobothrys hispidus Ivan Johnston 1938-7-22 11350 Siskiyou Shasta Fir Forest, Sisson Southern TrailShasta Fir Forest Mount Shasta; , Shasta Fir Forest, Sisson Southern Trail Comment
  RSA47773  Plagiobothrys tenellus Roxana S. Ferris, Laura Lorraine 11891 Siskiyou 1 mile below summit of Gazelle Mt grade, W side Gazelle-Callahan Road. 1220 Comment
  RSA105308  Plantago eriopoda Milo S. Baker 1955-7-26 13079 Siskiyou Hwy 99, 4 mi S of Gazelle. 915 Comment
  HSC68345  Plantago lanceolata J. P. Smith 1973-5-5 6432 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA237607  Plantago major Frederick W. Oettinger 1969-8-13 1359 Siskiyou Where stock are kept at English Lake main campsite. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  UC673594  Platanthera leucostachys D. Tebbe 1929-6-7 145 Siskiyou Mount Eddy Comment
  RSA382885  Platanthera leucostachys Louis C. Wheeler 1934-6-18 2725 Siskiyou Cottonwood Creek, Siskiyou Mts. Mt. Diablo Mer. 1311 Comment
  UC642559  Platanthera sparsiflora W. Bridge Cooke 1939-7-7 13612 Siskiyou Sedge Bog at Wagon Camp Mount Shasta 1737 Comment
  HSC46055  Plectritis macrocera Maralyn O'Meara 1974-5-25 420 Siskiyou On Rd. 8, 4.7 mi. W of junction with Hwy. 3 1159 Comment
  SEINET8531600  Plectritis macrocera G. D. Butler 1910-3-24 1139 Siskiyou Shasta River Hills Comment
  RSA183749  Pleuricospora fimbriolata Gilbert Muth 1965-8-5 307 Siskiyou Granite Creek, Marble Mts. Comment
  CAS-BOT-BC261040  Poa Gilbert Muth 1966-7-17 403 Siskiyou Trail to lookout, Marble Mts. 1828 Comment
  UCD90546  Poa bolanderi A. A. Heller 1914-8-28 11736 Siskiyou East side of Mt. Eddy. 2438 Comment
  UCD90583  Poa bolanderi A. H. Murphy 1955-7-29 55 S Siskiyou Klamath National Forest. Marble Mountains. Clear Lake. 1798 Comment
  CHSC61585  Poa compressa L. P. Janeway 1983-8-26 600 Siskiyou Siskiyou Mountains; at Poker Flat, front edge of upper part of a meadow. 1524 Comment
  CAS-BOT-BC256011  Poa pratensis H. E. Brown 1897-6-1 374 Siskiyou Near Sisson 1083 Comment
  CDA18411  Poa pratensis G. D. Barbe, T. C. Fuller & J. T. Howell 1980-4-29 2634 Siskiyou Klamath Ranges; East Fork Scott River, 2 miles east of Callahan, between highway and river, ca 500 ft west of Hwy 3 bridge. 975 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
  CAS-BOT-BC247524  Poa pringlei John Thomas Howell 1937-7-29 13670 Siskiyou North side of Scott Mt. Comment
  HSC92155  Poa pringlei Jennifer Whipple 1977-7-20 1977 Siskiyou South face of Mt. Eddy. 2470 Comment
  RSA186325  Poa pringlei Gilbert Muth 1966-10-16 12 Siskiyou Marble Mountains 1793 Comment
  CAS-BOT-BC255012  Poa secunda K. T. Stillman 1976-8-7 174 Siskiyou Marble Mountain Wilderness Area 2072 Comment
  CAS-BOT-BC255013  Poa secunda K. T. Stillman 1976-6-25 98 Siskiyou Marble Mountain Wilderness Area. Between Marble Gap and Elk Valley trail Comment
  CAS-BOT-BC243231  Poa secunda subsp. secunda A. A. Heller 1920-6-29 13402 Siskiyou Near Wagon Creek falls, E side of Mount Eddy Comment
  UC1579532  Poa secunda subsp. secunda Mitchell 1936-5-8 4 Siskiyou base of Schonchin Butte; Lava Beds Nat'l Monument 1371 Comment
  UC196957  Poa secunda subsp. secunda Geo. D. Butler 1910-4-16 1187 Siskiyou Klamath hills Comment
  UC820882  Poa secunda subsp. secunda Louis C. Wheeler 1934-8-9 3076 Siskiyou head Jaynes Canyon; Siskiyou Mts 1920 Comment
  UCD90800  Poa secunda subsp. secunda Beecher Crampton 1956-8-21 3815 Siskiyou Above Gumboot Lake, headwater of S fork of Sacramento River. 1920 Comment
  UCD91994  Poa wheeleri Robert E. Preston 2001-6-23 1617 Siskiyou Klamath National Forest, north-facing slope of Rainbow Mountain. 1889 Comment
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Nov 7 2014
  CAS-BOT-BC244323  Podagrostis humilis L. P. Janeway 1983-8-16 557 Siskiyou Siskiyou Mountains, at Poker Flat 1524 Comment
  SEINET3144935  Polemoniella micrantha G. D. Butler 1910-3-23 1137 Siskiyou Near Yreka Comment
  JEPS84249  Polemonium californicum L. R. Heckard with J. Hickman et al. 1986-7-17 6517 Siskiyou n slope of Condrey Mt. 1960 Comment
  CAS-BOT-BC263241  Polemonium carneum R. Stubbs 2010-6-25 011 Siskiyou Private property. 5 miles west of Yreka Comment
  HSC19295  Polemonium pulcherrimum J. O. Sawyer 1969-7-7 1077 Siskiyou S facing ridge above Big Duck Lake 2226 Comment
  CAS-BOT-BC231305  Polemonium pulcherrimum L. R. Short 1933-8-6 21 Siskiyou Klamath National Forest. Bear Lake, Marble M. 2072 Comment
  SJSU6483  Polyctenium fremontii R. W. Trivelpiece 1972-6-9 97 Siskiyou c. 4 mi E of Grass L 1524 Comment
  HSC67532  Polygala cornuta J. P. Smith, Steve Selva 1970-6-14 3858 Siskiyou Comment
  OBI55528  Polygala cornuta var. cornuta David J. Keil, Kathleen Keil 1992-7-21 23517 Siskiyou Klamath Natl Forest SE of Callahan on hwy 3, 2.1 mi NW of Scott Mtn summit Comment
  UC642558  Polygonum aviculare subsp. aviculare W. Bridge Cooke 1937-8-6 9187 Siskiyou Bear Springs Mount Shasta (meadow) Comment
  UC1408823  Polygonum bistortoides Frederick W. Oettinger 1968-8-8 446 Siskiyou slope dropping down to Upper English Lake (near trail Y to English Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 2164 Comment
  POM104639  Polygonum bistortoides Geo. D. Butler 1910-6-5 1477 Siskiyou Shackleford Creek Comment
  RSA601425  Polygonum davisiae Louis C. Wheeler 1935-6-27 3601 Siskiyou Head of Etna Creek, Marble Mountains. 1799 Comment
  CAS-BOT-BC414604  Polygonum douglasii A. A. Heller 1916-7-20 12121 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UC164402  Polygonum douglasii Geo. D. Butler 1910-7-31 1803 Siskiyou Yreka Comment
  UC1950092  Polygonum douglasii Barbara Ertter 1990-7-14 9310 Siskiyou E side of Mt Eddy ca 4 airmiles due W of Mt Shasta City, at streamlet near end of FR 41N53 ca 1 mi N of Morgan Meadows, steep E-facing serpentine hillside Comment
  SEINET4338954  Polygonum douglasii G. D. Butler 1910-7-7 1787 Siskiyou Dry bank Shackleford Creek 914 Comment
  JEPS84295  Polygonum douglasii subsp. douglasii L. R. Heckard with J. Hickman, S. D'Alcamo 1986-7-17 6483 Siskiyou e Cook and Green Pass (w ridge of butte); Copper Butte 1524 Comment
  UC850392  Polygonum douglasii subsp. spergulariiforme Alice Eastwood 1922-10-23 11553 Siskiyou Yreka Comment
  SEINET3399368 Image available Polygonum minimum J. M. Tucker, L. K. Mann 1963-8-17 3743 Siskiyou Red Rock Valley, near top of ridge, Marble Mountain Wilderness Area Comment
  UCD100494  Polygonum minimum J. M. Tucker; L. K. Mann 1963-8-17 3743 Siskiyou Beside trail from Red Rock Valley to top of ridge to south, and near top of ridge, Marble Mountain Wilderness Area. 1859 Comment
  UC1540134  Polygonum newberryi Dean Wm. Taylor and Rexford E. Palmer 1987-8-8 9260 Siskiyou Lyons Peak Medicine Lake volcanic highland region (extreme nw section of county) 2407 Comment
  CAS-BOT-BC419873  Polygonum polygaloides subsp. confertiflorum Herbert L. Mason 1948-7-17 13595 Siskiyou Eastern Grass Lake Comment
  CAS-BOT-BC419872  Polygonum polygaloides subsp. confertiflorum A. A. Heller 1925-7-25 13901 Siskiyou Along the Pacific highway near Edgewood. Comment
  CHSC1351  Polygonum shastense K. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. Comment
  JEPS40856  Polygonum shastense Paul C. Hutchison 1962-8-2 935 Siskiyou between Panther Meadow and top of ski lift; Mt. Shasta 2621 Comment
  SDSU9667  Polygonum shastense D. F. Howe 1962-8-6 3409 Siskiyou Mt. Shasta, Shasta National Forest. 2438 Comment
  UC850384  Polygonum shastense L. E. Smith 1915-1 Siskiyou Mt. Shasta Comment
  POM104534  Polygonum spergulariiforme Geo. D. Butler 189 Siskiyou Dry hills near Yreka. Comment
  CHSC91236  Polypogon monspeliensis Lowell Ahart; John Dittes 2005-6-9 12003 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-BC76733  Polystichum imbricans subsp. imbricans Doris K. Kildale 1928-7-3 5434 Siskiyou Fork of Salmon Comment
  HSC75353  Polystichum kruckebergii J. O. Sawyer, M. Mesler 1980-8-11 4037 Siskiyou Along Pacific Crest Trail just N of Jump Off in the Marble Mtn. Wilderness area Comment
  HSC27332  Polystichum lemmonii J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5712 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  UC1299762  Polystichum lemmonii Freed W. Hoffman 1951-7-16 4045 Siskiyou Packers' Valley North Coast Ranges, Marble Mts., Packers' Valley Comment
  UC338378  Polystichum lemmonii unknown Siskiyou Mt. Eddy near Shasta Mt. Eddy Comment
  CAS-BOT-BC72391  Polystichum lemmonii Louis C. Wheeler 1934-8-13 3114 Siskiyou Klamath National Forest, E. Fork Horse Cr. 1981 Comment
  POM197154  Polystichum lemmonii J. G. Lemmon 1889-09 s.n. Siskiyou Mt. Eddy Comment
  RSA85033  Polystichum lemmonii P. A. Munz 1934-8-14 3137 Siskiyou North side of White mountains 1768 Comment
  HSC1147  Polystichum lonchitis Dorothy Parker 1949-7-10 336 Siskiyou Above Paradise Lake, Salmon Mtn. 1982 Comment
  LA2445  Polystichum lonchitis Louis Wheeler; 1934-8-6 3058 Siskiyou Rock Gulch off Jaynes Canyon 1828 Comment
  RSA237508  Polystichum lonchitis Frederick W. Oettinger 1968-9-1 656 Siskiyou SSW of Abbotts Lake, adjacent to Red Fir Forest. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  UC1593364  Polystichum munitum Alan Smith with Chris Richards, C. Don Macneill, Janet Sowers, Bob Martin, Pat Toops, and Barney 1992-6-6 2542 Siskiyou at base of entrance Fossil Cave; Lava Beds Nat'l Monument 1280 Comment
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May 30 2013
  HSC27970  Polystichum munitum Carl W. Mize 1972-8-19 108 Siskiyou Close to Steinacher Cr. 427 Comment
  HSC66086  Polystichum scopulinum M. Sacks 1977-10-4 16 Siskiyou S facing slope, N side of main rd. between Callahan and Cecilville, 6 mi. SW of Callahan 1463 Comment
  RSA693354  Polystichum scopulinum L. C. Wheeler 1934-8-13 3113 Siskiyou East Fork Horse Creek, Siskiyou Mountains 1982 Comment
  UC375242  Populus trichocarpa Geo. D. Butler 1909-9-26 972 Siskiyou along creek near Yreka; along creek near Yreka Comment
  UC416612  Porterella carnosula H. W. Furlong Sept. 1901 Siskiyou Summit to Ager; about 10 mi (air) s of the Oregon boundary and about 11 mi (by road) n of Montague, northern Siskiyou Co. Comment
  CDA42312  Porterella carnosula T. C. Fuller 1960-6-3 s.n. Siskiyou Edge of Toad Lake, ca. 7 miles northeast of Bartle. 0 Comment
  CDA814  Potamogeton foliosus Doug Horn 1985-7-31 Siskiyou Flowing stream at Horn Ranch on Eastside Road, Etna. 0 Comment
  CAS-BOT-BC267227  Potamogeton robbinsii John Thomas Howell 1939-8-9 15196 Siskiyou Sky High Valley, Marble Mountains 1828 Comment
  CAS-BOT-BC143339  Potentilla cristae G. J. Muth 1969-8-10 1319 Siskiyou Ridge w. of Boulder Peak Comment
  UC1560737 Image available Potentilla cristae W. J. Ferlatte 1989-8-5 2122 Siskiyou ridge e Cory Peak; China Mt. se Quad., ridge e of Cory Peak 2286 Comment
  SJSU6532  Potentilla flabellifolia R. W. Trivelpiece 1973-6-21 148 Siskiyou Big Duck L, Scott R drainage c. 7.5 mi W of Callahan 2042 Comment
  UC555306  Potentilla fruticosa D. Tebbe 1929-7-15 124 Siskiyou Mt. Eddy Comment
  HSC69007  Potentilla gracilis var. fastigiata Maralyn A. Renner 1980-7-24 2051 Siskiyou Lily Pad Lake 1768 Comment
  CAS-BOT-BC540569  Potentilla gracilis var. fastigiata John Thomas Howell 1937-7-22 13277 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC158528  Potentilla millefolia Mrs. Brandegee 1887-7-1 8074 Siskiyou Gazelle. At Edgewood, the first station south of Gazelle Comment
  UCD119035  Primula suffrutescens Joseph M. DiTomaso 1975-9-10 321 Siskiyou Just below Sawtooth Pass on Caribou Lake side. 2286 Comment
  UCR52365  Primula suffrutescens K. Berg, Stephanie Bennett 1986-8-25 645 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little South Fork of Salmon River; above Little South Fork Lake 2287 Comment
  HSC60  Prunella vulgaris subsp. lanceolata William J. Ferlatte 1966-6-23 143 Siskiyou Big Flat, between campground and S Fork of the Salmon River 1524 Comment
  CAS-BOT-BC158207  Prunus emarginata Alice Eastwood 1912-7-18 1212 Siskiyou Sisson Comment
  HSC77117  Prunus emarginata K. T. Stillman 1976-6-25 95 Siskiyou Marble Mtn. Wilderness Area, between Marble Gap and Elk Valley Trail Comment
  POM89362  Prunus emarginata Edward Palmer 1892-7-13 2564 Siskiyou Mount Shasta and vicinity Comment
  RSA23400  Prunus emarginata Annetta Carter 1939-8-19 s.n. Siskiyou 3.5 miles N of Dunsmuir. 915 Comment
  RSA593947  Prunus emarginata Louis C. Wheeler 1963-9-3 8335 Siskiyou Siskiyou Mountains. Cyclone Gap chrome mine. Comment
  UC1540007  Prunus emarginata M. Mitchell 1936-6-8 6 Siskiyou Lava Beds National Monument, Irish Bridge Irish Bridge; Lava Beds National Monument, Irish Bridge 1417 Comment
  UC618731  Prunus emarginata W. Bridge Cooke 1938-6-17 11011 Siskiyou Mount Shasta, Sisson Southern Trail Sisson Southern Trail; Mount Shasta, Sisson Southern Trail 1371 Comment
  SEINET9362850  Prunus emarginata Unknown 2009-5-31 Siskiyou High elevation, semi-arid ecosystem; native species; collected at Lava Beds National Monument, directly South of Tulelake, CA. Comment
  CDA26201  Prunus subcordata T. C. Fuller 1961-5-16 6953 Siskiyou Sam s Neck, ca. 15 miles southwest of Dorris. 0 Comment
  HSC100863  Prunus subcordata J. P. Smith, J. O. Sawyer 2010-5-6 12815 Siskiyou Along Road 9KO2, N of Irongate Reservoir. 755 Comment
  UCSB24428  Prunus subcordata Favero, R. 1968-3-27 Siskiyou 1 mile southeast of Hombrook, on Ager road, Siskiyou Mountains. 701 Comment
  HSC37440  Prunus virginiana var. demissa John Rehling 1976-5-26 401 Siskiyou 3.1 mi. N of Callahan along SR 3 Comment
  UC1409341  Prunus virginiana var. demissa Frederick W. Oettinger 1969-8-29 1564 Siskiyou along English Lake trail (above Willow Spring, High Lake Basins in vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  CAS-BOT-BC357409  Pseudognaphalium microcephalum Carl B. Wolf 1927-8-26 1036 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  UCD91496  Pseudoroegneria spicata A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3397 Siskiyou 7 miles N of Weed. Comment
  POM206523  Pseudoroegneria spicata subsp. spicata E. B. Copeland 1903-7-4 3542 Siskiyou Klamathon Comment
  CHSC71572  Pseudostellaria jamesiana Vernon H. Oswald; Lowell Ahart 1998-8-3 9427 Siskiyou Near the Pacific Crest Trail in the Scott Mtns. west of Kangaroo Lake. 1981 Comment
  HSC75250  Pseudostellaria jamesiana J. P. Smith, Steve Selva 1970-7-27 4512 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  HSC27953  Pseudotsuga menziesii var. menziesii Carl W. Mize 1972-9-23 115 Siskiyou 0.5 mi from end of Steinacher Creek Rd. 884 Comment
  HSC69140  Pseudotsuga menziesii var. menziesii Maralyn A. Renner 1980-8-8 2477 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  UCD91893  Puccinellia lemmonii Chandler Jensen; Mike McGourty 1961-8-1 s.n. Siskiyou Near Yreka, Red Bluff. Comment
  SD104903  Purshia tridentata Darley Howe 1979-6-26 Siskiyou Military Pass Rd, 3 mi. SE of Ca. Hwy 97, near Granada Comment
  RSA605983  Purshia tridentata var. tridentata Louis C. Wheeler 1935-6-13 3571 Siskiyou Mill Creek. Quartz Valley. 945 Comment
  UC166595  Pyrola asarifolia Geo. D. Butler 1910-7-9 1698 Siskiyou Shackleford Creek 1219 Comment
  UC2062587  Pyrola dentata Belinda Lo with Alex Randolph-Lowe 2017-8-25 361 Siskiyou SISKIYOU COUNTY: Ash Creek Butte, southwest of Surprise Lake. Comment
  RSA0080477  Pyrola dentata Geo D. Butler 1910-6-17 1574 Siskiyou Humbug Mountain. 1220 Comment
  SEINET8218484  Pyrola dentata Fred W. Hoffman 1948-7-8 2601 Siskiyou north of West Branch Camp; Waldo-Happy Camp Road. Comment
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May 8 2018
  HSC67673  Pyrola minor John Palmer 1980-7-24 594 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC17971  Pyrola picta Wm. F. Bowman 1968-10-12 Siskiyou Sugar Creek Trail 1585 Comment
  UC1483416  Pyrola picta John Palmer 1980-8-15 968 Siskiyou ne of Seiad Low Gap on spur of Forest Road 46N50, Klamath National Forest Seiad Low Gap; Klamath National Forest, Forest Road 46N50 1097 Comment
  RSA0083257  Pyrola picta R. F. Thorne 1969-8-2 63334 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1159 Comment
  CAS-BOT-BC362390  Pyrrocoma racemosa var. racemosa Geo. D. Butler 1910-8-21 1843 Siskiyou Shasta Valley Comment
  SFV5114  Quercus garryana B. C. Templeton 1957-6-21 s. n. Siskiyou North of Callahan Comment
  OBI36119  Quercus garryana var. garryana David J. Keil 1983-7-3 17379 Siskiyou 11 mi NE of jctn with SR 3 along Gazelle-Callahan rd Comment
  SEINET10838949  Quercus kelloggii Katherine L. Morris, Melvin L. Conrad; David B. Dunn 1973-6-2 Morris 349 Siskiyou Found at the junction of shasta and klamath rivers on hwy 263 Comment
  CAS-BOT-BC104341  Quercus sadleriana Baki Kasapligil 1981-6-26 6192 Siskiyou Around the Lake Bolan, Siskiyou Comment
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Jun 23 2018
  CAS-BOT-BC104357  Quercus sadleriana D. E. Breedlove 1962-6-10 3289 Siskiyou on SW slope of Little Greyback Mountain along Indian Creek Road from O'Brien to Happy Camp, 20.7 miles NW of Happy Camp 1554 Comment
  CDA15568  Quercus sadleriana G. F. Hrusa 1998-7-5 14676 Siskiyou Siskiyou Mountains; S side below summit on Happy Camp-O'Brien Rd. on Ca. side of State Boundary. Comment
  CHSC91794  Quercus sadleriana G. F. Hrusa 2001-6-6 15853 Siskiyou Siskiyou Mountains. Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. Roadside. UTM: 10T, 4649821 N, 0456023 E. 1424 Comment
  HSC65556  Quercus sadleriana R. S. White 1977-6-20 87 Siskiyou NE area around Devil's Punchbowl 1433 Comment
  HSC69243  Quercus sadleriana Maralyn A. Renner 1980-9-1 2700 Siskiyou S side of Devil's Punchbowl 1829 Comment
  SBBG25343  Quercus sadleriana J. M. Tucker 1963-7-9 3735 Siskiyou ca. 0.75 mi E of Marble Valley Guard Stn, upper Cyn Crk, Marble Mtn Wilderness 1615 Comment
  UC552335  Quercus sadleriana Rimo Bacigalupi 1935-10-21 2369 Siskiyou summit of road from Waldo, Oregon to Happy Camp (Del Norte-Siskiyou County line); Siskiyou Mountains Comment
  OBI14234  Quercus sadleriana R. Rimo Bacigalupi 1935-10-20 Siskiyou Summit of Indian Cyn rd, above Happy Camp on road to Walker, Oregon 457 Comment
  SEINET13953860 Image available Quercus sadleriana D. K. Bailey 1972-1 Siskiyou Understory shrubs beneath Picea breweriana, cf. NE slope above O'Brien to Happy Camp road 1311 Comment
  RSA211498  Quercus vacciniifolia William J. Ferlatte 1967-8-17 956 Siskiyou Trinity Alps; Yellow Rose Mine. 1982 Comment
  RSA237820  Quercus vacciniifolia Frederick W. Oettinger 1968-9-8 783 Siskiyou On east side of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  UC455272  Quercus vacciniifolia I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1676 Comment
  UCD47465  Quercus vacciniifolia D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-13 s.n. Siskiyou Callahan-Cecilville. Cecilville Road. Klamath National Forest. 1130 Comment
  UCR95631  Quercus vacciniifolia L. C. Wheeler 1963-9-3 8345 Siskiyou Siskiyou Mtns. Cyclone Gap chrome mine Comment
  UC1733709  Ranunculus Frank Gould, Kay H. Beach 1940-5-16 1252 Siskiyou Bald Mtn. Comment
  JEPS55076  Ranunculus flammula W. L. Jepson 1894-1 Siskiyou near Muir's Peak; Sisson Comment
  UC827914  Ranunculus occidentalis Frank W. Gould 1940-5-15 1252 Siskiyou on road from Mt. Hebron to Montague; Bald Mountain 1676 Comment
  POM99442  Ranunculus orthorhynchus Geo. D. Butler 1910-4-21 1214 Siskiyou Oro Fino Comment
  UC118221  Ranunculus orthorhynchus var. orthorhynchus T. S. Brandegee July 1887 Siskiyou Ager Comment
  HSC100035  Ranunculus testiculatus J. P. Smith, & J. O. Sawyer 2010-5-6 12820 Siskiyou Camp Creek Campground. 727 Comment
  UC726666  Ranunculus uncinatus A. A. Heller 1916-6-20 12412 Siskiyou Metcalf's Ranch Mt. Eddy (ne base of Mt. Eddy) 1188 Comment
  CHSC71600  Rhamnus californica subsp. occidentalis Vernon H. Oswald; Lowell Ahart 1998-8-3 9447 Siskiyou Rock Fence Lake Rd. (USFS 41N18) 0.1 mi northeast of its intersection with Kangaroo Lake Rd. (USFS 41N08) 4.9 mi southeast of Gazelle-Callahan Rd. 1676 Comment
  HSC22279  Rhododendron columbianum J. O. Sawyer 1969-7-11 1334 Siskiyou S Sugar Creek 1829 Comment
  CAS-BOT-BC199741  Rhododendron occidentale var. paludosum Laura M. Lathrop 1903-7-10 s.n. Siskiyou Shasta Retreat Comment
  HSC68401  Rhododendron occidentale var. paludosum Maralyn A. Renner 1980-7-4 1453 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  HSC40233  Rhus aromatica J. P. Smith 1976-5-4 8664 Siskiyou E boundary of Klamath National Forest along Hwy. 96, above Klamath River 610 Comment
  SEINET10494636  Rhus trilobata Katherine L. Morris 1973-6-2 Morris 356 Siskiyou Found at the junction of Shasta and Klamath Rivers on Hwy 263. Comment
  SFV10392  Ribes cereum M. L. Vincent 1967-6-29 720 Siskiyou On Mount Shasta. 2134 Comment
  SFV18029  Ribes cereum var. cereum J. A. Matos, D. C. Rudolph 1999-8-7 s. n. Siskiyou 2 miles south of Lava Beds National Monument on Lava Beds National Monument Road. 1738 Comment
  UC144335  Ribes divaricatum A. A. Heller 1905-6-15 8042 Siskiyou Near Sisson Comment
  UC1190179  Ribes lacustre Ira L. Wiggins 1955-7-29 13592 Siskiyou 3.5 mi above S. Fork of Salmon River (along Thompson Creek); Thompson Creek 1371 Comment
  CAS-BOT-BC173394  Ribes lobbii Geo. D. Butler 1910-7-14 1782 Siskiyou Shackleford Creek Comment
  HSC20305  Ribes lobbii Hilda W. Grinnell 1935-6-8 Siskiyou Deer Camp Ranger Station, head of Daggett Creek, Siskiyou Mtns. 1799 Comment
  CAS-BOT-BC212489  Ribes marshallii Harley P. Chandler 1901-6-1 1549 Siskiyou Ridges and meadows near Marble Mountain 1828 Comment
  HSC40026  Ribes marshallii J. O. Sawyer 1971-7-24 2422 Siskiyou Just N of Summit Lake 1860 Comment
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Dec 6 2013
  HSC40049  Ribes marshallii J. O. Sawyer 1970-7-4 2323 Siskiyou At Cedar Flat Cabin 1402 Comment
  SBBG27526  Ribes roezlii var. cruentum L. C. Wheeler 1935-5-12 3491 Siskiyou Greenhorn Crk, Siskiyou Mtns 914 Comment
  JEPS49247  Ribes sanguineum Geo. D. Butler 1908-8-10 262 Siskiyou Shackelford Creek 1524 Comment
  UC1046554  Ribes sanguineum R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-16 3455 Siskiyou about 1.5 mi below and se of saddle at summit Takilma-Happy Camp Road 1630 Comment
  CAS-BOT-BC168799  Ribes viscosissimum Gilbert Muth 1966-7-17 380 Siskiyou Along trail to Marble Mountain Lookout, Marble Mts. 1813 Comment
  CAS-BOT-BC168806  Ribes viscosissimum John Thomas Howell 1937-7-26 13549 Siskiyou Caribou Gulch Comment
  HSC61945  Ribes viscosissimum Al Hobart 1968-6-13 Siskiyou Poker Flat 1768 Comment
  HSC61947  Ribes viscosissimum Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  JEPS77659  Ribes viscosissimum William J. Ferlatte 1974-7-15 1540 Siskiyou Yellow Rose Mine Trail Trinity Alps 1645 Comment
  RSA0020921  Ribes viscosissimum Gilbert Muth 1966-7-17 380 Siskiyou Along trail to Marble Mountain Lookout, Marble Mountains. 1814 Comment
  CAS-BOT-BC362934  Rigiopappus leptocladus Geo. D. Butler 1910-5-17 1354 Siskiyou Yreka Comment
  CAS-BOT-BC74369  Rorippa columbiae Stuart K. Harris 1960-6-15 21388 Siskiyou Dry Lake. Comment
  JEPS90364  Rorippa columbiae Dean Wm. Taylor Glenn L. Clifton, R. Doug Stone 1987-8-6 9247 Siskiyou White Deer Lake; margin of stock watering pond, extreme ne portion of county 1508 Comment
  JEPS80504  Rorippa curvisiliqua Gilbert Muth 1966-7-19 423 Siskiyou Marble Mt. Wilderness Area 1798 Comment
  RSA237225  Rorippa curvisiliqua Frederick W. Oettinger 1969-8-18 1416 Siskiyou West side of Horse Lake Range. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1820 Comment
  UC1023841  Rorippa nasturtium-aquaticum Douglas Barbe 1955-6-29 30 Siskiyou 1 mi e Callahan (Klamath Mountains); , e of Callahan 975 Comment
  UC768888  Rosa gymnocarpa var. serpentina Doris K. Kildale 1929-8-24 8844 Siskiyou Preston Peak 2228 Comment
  CAS-BOT-BC147063  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou Near Fish Hatchery, Mt. Shasta City (Sisson) 1066 Comment
  CAS-BOT-BC147065  Rosa pisocarpa Joseph P. Tracy 1949-9-16 18565 Siskiyou Scott Mt. near summit on road from Scott Valley to Trinity Center 1615 Comment
  UC1409336  Rosa pisocarpa Frederick W. Oettinger 1968-8-23 612 Siskiyou talus below shore cliff just below Diamond Lake (on way toward English Lake); Salmon Mountains, Marble Mountain Wilderness Area 2057 Comment
  UC329938  Rosa pisocarpa unknown Sept. 1889 Siskiyou Sisson's Meadows Comment
  CAS-BOT-BC147062  Rosa pisocarpa W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Comment
  HSC44717  Rosa rubiginosa J. O. Sawyer, E. Cope 1977-6-18 2912 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  HSC61950  Rubus lasiococcus Ruby Van Deventer 1959-7-10 Siskiyou Poker Flat 1585 Comment
  JEPS25620  Rubus lasiococcus Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7253 Siskiyou Poker Flat 1536 Comment
  UC1190259  Rubus leucodermis Ira L. Wiggins 1955-7-22 13456 Siskiyou 9.5 mi above Cecilville (in South Fork of Salmon River); South Fork Salmon River 1066 Comment
  HSC69286  Rubus parviflorus Maralyn A. Renner 1980-7-24 1951 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  RSA264949  Rubus parviflorus G. L. Clifton 1975-7-28 s.n. Siskiyou Near Cook and Green Pass. Near Seiad Valley. 1646 Comment
  UC12967  Rubus parviflorus Milo S. Baker 1893-6 Siskiyou 6 mi below Bartles; McCloud River Comment
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Jun 8 2009
  CAS-BOT-BC157162  Rubus ursinus A. A. Heller 1916-6-20 12419 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC157163  Rubus ursinus Alice Eastwood 1917-9-2 6688 Siskiyou Shasta Springs Comment
  CAS-BOT-BC157165  Rubus ursinus Alice Eastwood 1921-7-30 11001 Siskiyou Soda Creek Comment
  UC861838  Rubus ursinus A. A. Heller 1916-6-20 12419 Siskiyou Metcalf's Ranch ne base of Mt. Eddy, Metcalf's Ranch 1188 Comment
  CAS-BOT-BC363170  Rudbeckia californica Peter H. Raven 1956-9-5 10466 Siskiyou North Fork of Sacramento River 1584 Comment
  OBI55479  Rudbeckia klamathensis David J. Keil, Kathleen Keil 1992-7-21 23528 Siskiyou Klamath Natl Forest SE of Callahan. Forest Rd 40N08. 0.5 mi W of Scott Mtn rd (hwy 3) Comment
  HSC31131  Rudbeckia occidentalis J. O. Sawyer 1971-8-20 2459 Siskiyou Near Buckhorn Spring on Big Ridge trail 1982 Comment
  RSA92514  Rudbeckia occidentalis L. C. Wheeler 1934-8-2 3024 Siskiyou Jaynes Canyon, Siskiyou Mountains. 1829 Comment
  JEPS74413  Rumex acetosella W. B. and V. G. Cooke 1974-8-20 49244 Siskiyou Everett Memorial Highway Mt. Shasta 1371 Comment
  RSA237971  Rumex acetosella Frederick W. Oettinger 1967-8-13 259 Siskiyou Just below Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  UC375325  Rumex conglomeratus Geo. D. Butler 1908-7-5 514 Siskiyou near Yreka Comment
  UC375327  Rumex crispus Geo. D. Butler 1908-6-25 513 Siskiyou near Yreka 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
  RSA126337  Sagina decumbens subsp. occidentalis I. L. Wiggins 1955-7-22 13445 Siskiyou South Fork of Salmon River, 9.5 miles above Cecilville. 1067 Comment
  RSA237869  Sagina decumbens subsp. occidentalis Frederick W. Oettinger 1969-8-31 1566 Siskiyou Weed patch near English Lake; Salmon Mts; The high lake basins in the vicinity of English Peak, Marble Mt. Wilderness Area. Comment
  HSC92636  Sagina saginoides Jennifer Whipple 1976-7-2 1253 Siskiyou Mt. Eddy: Near Dobkins Lake 2073 Comment
  UC935739  Sagittaria cuneata Calvin McMillan and Malcolm A. Nobs 1949-6-17 799 Siskiyou Grass Lake; Highway 97 Comment
  HSC79090  Sagittaria cuneata Paul Wilson 1984-8-26 350 Siskiyou Juanita Lake Reservoir, edge of lake 1555 Comment
  CAS-BOT-BC103371  Salix bonplandiana Gordon H. True 1968-8-6 4580 Siskiyou On Yreka-Ashland Highway at Shasta River bridge, ca. 5 miles north of Yreka Comment
  JEPS13065  Salix boothii Joseph P. Tracy 1935-8-1 14395 Siskiyou extreme head of West Fork of Knownothing Creek Rock Lake (on ridge between Salmon and New Rivers); betw Salmon and New Rivers, head of West Fork Knownothing Cr 1889 Comment
  POM167592  Salix boothii H. P. Chandler 1901-06 1547 Siskiyou Near Marble Mtn. 1829 Comment
  HSC22278  Salix eastwoodiae J. O. Sawyer 1969-7-24 1481 Siskiyou SW slope above Sugar Lake 1890 Comment
  RSA238016  Salix eastwoodiae Frederick W. Oettinger 1968-8-2 355 Siskiyou E outlet of Diamond Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2073 Comment
  CAS-BOT-BC107784  Salix hindsiana L. B. Kildale 1930-5-31 9792 Siskiyou Island in Klamath River near Hornbrook Comment
  RSA0034854  Salix hindsiana H. P. Bracelin 1931-6-22 477 Siskiyou Pit River at Gibson flag station, 125 km. north of Red Bluff. 450 Comment
  UCSB10876  Salix lasiandra Bracelin, H. 1931-6-19 Siskiyou North base of Mount Eddy, about 10 km. northwest of Shasta City 1200 Comment
  CAS-BOT-BC125459  Salix lasiandra var. lasiandra C. Hart Merriam 1907-9-26 s.n. Siskiyou Klamath Hot Springs, Shovel Creek Comment
  HSC91251  Salix lasiandra var. lasiandra Jennifer Whipple 1977-8-6 2205 Siskiyou Dobkins Lake, below outlet of lake 2058 Comment
  CAS-BOT-BC125474  Salix lasiandra var. lasiandra W. R. Dudley 1907-8-24 s.n. Siskiyou South Fork Salmon, below Smiths Comment
  CAS-BOT-BC107079  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 832 Siskiyou East side of Mt. Eddy; Wagon Creek above Metcalf ranch house; 8-9 miles N.W. of Mt. Shasta City 1203 Comment
  LA208781  Salix lasiolepis Mrs. H. P. Bracelin; 1931-6-21 469 Siskiyou N side of Mount Eddy, about 21 km NW of Shasta City; 300 km. below Dobkin's Lake 1650.0 Comment
  UC576378  Salix lasiolepis Mrs. H. P. Bracelin 1936-5-12 841 Siskiyou 11 mi. n.w. from Mt. Shasta City (ca. 2 mi. e. of Burney Mill, n. base Mt. Eddy, flat beside creek at bridge); n. base Mt. Eddy 1127 Comment
  CAS-BOT-BC124896  Salix lemmonii Mrs. H. P. Bracelin 1931-6-21 467 Siskiyou North side of Mount Eddy, about 21 km. northwest of Shasta City; 180 m. below Dobkin's Lake 1770 Comment
  UC846671  Salix lemmonii Alice Eastwood 1921-7-29 10965 Siskiyou Medicine Lake Comment
  SBBG57821  Salix lucida subsp. lasiandra Mrs. H. P. Bracelin 1931-6-21 473 Siskiyou N base of Mt Eddy, ca. 13 km NW of Shasta City 1110 Comment
  CAS-BOT-BC129035  Salix scouleriana Geo. B. Grant 1902-9-11 5168 Siskiyou Sisson 1127 Comment
  HSC22232  Salix scouleriana J. O. Sawyer 1968-9-13 708 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC28679  Salix scouleriana Frederick W. Oettinger 1969-8-1 1135 Siskiyou Marble Mtn. Wilderness Area, English Lake Basin 1707 Comment
  HSC65537  Salix scouleriana R. White 1977-7-8 117 Siskiyou 1/4 mi. SE of creek crossing with trail to Devil's Punchbowl 1372 Comment
  SD877  Salix scouleriana Mrs. H. P. Bracelin 1931-6-21 472 Siskiyou North base of Mount Eddy, about 13 km northwest of Shasta City, at bridge about 1.3 km east of Burney Mill 1110 Comment
  UC449842  Salix scouleriana L. S. Smith 1931-6-1 15 Siskiyou near Mt. Shasta Mt. Shasta 1066 Comment
  UC576379  Salix scouleriana Mrs. H. P. Bracelin 1936-9-3 858 Siskiyou 11 mi. n.w. Shasta City (ca. 2 mi. e. of Burney Mill, at second bridge, n. base Mt. Eddy); n. base Mt. Eddy 1127 Comment
  HSC4515  Salsola tragus D. M. Thomson 1965-8-6 168 Siskiyou Lava Beds National Monument, S of Crescent Butte. Comment
  UCD125667  Salvia dorrii var. incana Robert E. Preston 1995-6-18 888 Siskiyou ca. 4 miles east of Hornbrook, on rock outcrop on north side of road to Irongate Reservoir. 670 Comment
  RSA31143  Salvia sonomensis A. A. Heller 1905-6-16 s.n. Siskiyou Near Sisson Comment
  CDA5770  Salvia virgata C. S. Giebner 1968-7-29 Siskiyou E.H. Marlow property, Greenhorn Valley, ca. 2 miles west of Yreka Comment
  CAS-BOT-BC235045  Sambucus Alice Eastwood 1921-7-31 11017 Siskiyou Shasta Springs Comment
  CAS-BOT-BC235043  Sambucus A. M. Vollmer; L. Beane 1953-7-1 111 Siskiyou Junction, Horse Creek-Klamath River Comment
  HSC31888  Sambucus nigra subsp. caerulea Steve Selva, Roger Jensen 1974-8-26 61 Siskiyou Along Rd. 8 to Sugar Creek trail, ca. 2 mi. from Hwy. 3 Comment
  HSC674  Sambucus racemosa var. melanocarpa William J. Ferlatte 1967-7-26 747 Siskiyou Caribou Basin, ridge W of Big Caribou Lake. 2134 Comment
  POM208204  Sanguisorba annua Louis C. Wheeler 1934-6-22 2758 Siskiyou Cottonwood Creek. Siskiyou Mtns. 915 Comment
  UC165254  Sanicula graveolens Geo. D. Butler 1910-7-13 1778 Siskiyou Shackleford Creek 1219 Comment
  UCD77988  Sanicula graveolens Robert E. Preston 2001-7-21 1739 Siskiyou Klamath National Forest, Rainbow Mountain. 2255 Comment
  UCD135445  Saussurea americana T. C. Fuller; D. H. Shaw 1974-9-24 20045 Siskiyou headwaters of Horse Creek, southwest slope of White Mountain. Comment
  RSA60659  Saxifraga aprica I. L. Wiggins 1950-5-28 12387 Siskiyou 0.3 mile W of Carmen Lake. 1707 Comment
  UC1408862  Saxifraga aprica Frederick W. Oettinger 1969-7-9 940 Siskiyou the High Lake Basins in the vicinity of English Peak (nw of upper English Lake); Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
  JEPS33850  Saxifraga cespitosa Gilbert Muth 1966-7-31 468 Siskiyou n side of Black Mountain (Marble Mountain Wilderness Area); , Marble Mountain Wilderness Area 1981 Comment
  SEINET12220731  Saxifraga marshallii H. P. Chandler 1901-1 1613 Siskiyou near Marble Mountain, North Coast Ranges 2134 Comment
  CDA25443  Saxifraga oregana T. C. Fuller 1966-5-26 14716 Siskiyou Between road and railroad tracks, north end of Mt. Shasta City. 0 Comment
  CAS-BOT-BC445879  Saxifragopsis fragarioides Ira L. Wiggins 1955-7-27 13552 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA238315  Saxifragopsis fragarioides Frederick W. Oettinger 1968-8-5 403 Siskiyou Mount Hemlock Forest, Shasta Ridge, between Diamond Lake and English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  UC1333334  Saxifragopsis fragarioides Dorothy Parker 1949-8-3 357 Siskiyou bluff above Paradise Lake (Salmon Mt); Siskiyou Mountains 1981 Comment
  UC1409258  Saxifragopsis fragarioides Frederick W. Oettinger 1968-8-5 403 Siskiyou ridge between English Peak and Diamond Lake (w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2072 Comment
  UC1736423  Saxifragopsis fragarioides Dean W. Taylor 1999-8-12 17318 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley) 1889 Comment
  JEPS124491  Schoenoplectus acutus var. occidentalis Daniel Slakey 2015-7-14 164 Siskiyou Along Ager-Beswick Road, approximately 5 miles from Copco Lake. Comment
  JEPS75307  Schoenoplectus acutus var. occidentalis Geo. D. Butler 1909-10-10 1092 Siskiyou swampy place 1 mi n Yreka; n of Yreka Comment
  UCSB23748  Schoenoplectus acutus var. occidentalis Breedlove, Dennis 1962-6-10 Siskiyou On the north bank of Klamth River; at its junction with Goff Creek; 4.5 miles west of Seiad 411 Comment
  RSA119342  Scirpus congdonii S. S. Tillett 1956-7-9 641 Siskiyou E of Scott Mountain, ca. 8 mi. SE of Callahan. Trinity-Siskiyou Cos line. 1829 Comment
  RSA238937  Scirpus congdonii Frederick W. Oettinger 1969-8-22 1500 Siskiyou On the south side of Horses Hole Pond above Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  CHSC71587  Scutellaria antirrhinoides Vernon H. Oswald; Lowell Ahart 1998-8-3 9417 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 3.9 mi southeast of Gazelle-Callahan Rd. at its intersection with USFS 41N10. Along a roadside drainage. 1554 Comment
  HSC92411  Scutellaria antirrhinoides Jennifer Whipple 1976-7-13 1455 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River. 2256 Comment
  UC1713587  Scutellaria antirrhinoides Dr. E. B. Copeland 1903-7-2 3530 Siskiyou Klamathon; Pacific Coast, Klamathon Comment
  RSA14093  Scutellaria antirrhinoides Elmer I. Applegate 1907-09 3306 Siskiyou Thrall, near Klamath River, Shasta Valley. Comment
  UC1408772  Scutellaria antirrhinoides Frederick W. Oettinger 1969-8-1 1128 Siskiyou High Lake Basins in vicinity of English Peak (below English Lake,); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  UC1713597  Scutellaria antirrhinoides Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6867 Siskiyou about 3 mi below (n of) Scott Mountain (road summit, on road to Callahan) 1219 Comment
  RSA297051  Sedum lanceolatum John F. Emmel 1974-7-22 523 Siskiyou Meadows 0.2 air mile N of N end of Lower Wright Lake, Marble Mountain Wilderness Area. 2088 Comment
  HSC63300  Sedum lanceolatum var. lanceolatum M. A. Baker 1979-7-30 1072 Siskiyou E facing rock slope. 2200 Comment
  HSC69136  Sedum laxum Maralyn A. Renner 1980-8-8 2482 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  RSA96847  Sedum laxum subsp. laxum P. C. Everett, E. K. Balls 1954-10-13 20293 Siskiyou Indian Creek Rd. to Obrien, 20 mi. NW from Hwy 96 at Happy Camp. 1433 Comment
  RSA0036682  Sedum oblanceolatum Peter F. Zika 2011-7-19 25650 Siskiyou Near Pacific Crest Trail, 1 air mile WNW of Copper Butte, Siskiyou Mountains, Klamath Range (KR). 1610 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
  HSC25457  Sedum obtusatum subsp. retusum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5652 Siskiyou E of Cook and Green Pass 1524 Comment
  CAS-BOT-BC503091  Sedum oregonense Doris K. Kildale 1929-7-20 8585 Siskiyou Southeast spur, Preston Peak 1950 Comment
  SEINET8552455  Sedum spathulifolium A. A. Heller 1905-6-1 7932 Siskiyou Between Dunsmuir and Upper Soda Spring. Comment
  UC1015315  Sedum spathulifolium C. R. Bell 1951-4-20 1029 Siskiyou on the Salmon Mountain Road 2.2 mi sw Etna (Mill Creek); sw of Etna, Mill Creek Comment
  UC1299666  Sedum spathulifolium Freed W. Hoffman 1951-7-12 4025 Siskiyou Elk Lake Trail Marble Mountains (Marble Mountains) Comment
  RSA641068  Selaginella wallacei Louis Cutter Wheeler 1963-9-11 8388 Siskiyou Siskiyou Mountains: Elk Hole, Dillon Creek. . Comment
  CAS-BOT-BC363420  Senecio aronicoides A. M. Vollmer; L. Beane 1951-5-31 31 Siskiyou Near highway, Scott Mountain Comment
  RSA0125045  Senecio exaltatus Geo. D. Butler 1910-6-19 1581 Siskiyou Goosenest Foothills. 1524 Comment
  JEPS109257  Senecio fremontii var. fremontii D. W. Taylor 2002-7-29 18284 Siskiyou South China Mountain; cirque at head of the W fork of Huston Creek (Huston Creek Divide on USFS trail sign at summit) ca 0.4 miles E of summit. Comment
  CAS-BOT-BC341179  Senecio hydrophiloides Geo. D. Butler 1910-6-19 1581 Siskiyou Goosenest foothills 1524 Comment
  UCD135530  Senecio hydrophilus Thomas C. Horn 1956-8-6 s.n. Siskiyou west side of Lower Klamath Lake. Comment
  SBBG8762  Senecio integerrimus H. and M. Dearing 1938-6-28 2187 Siskiyou Mt Shasta 1828 Comment
  JEPS94761  Senecio integerrimus var. exaltatus Vernon H. Oswald and Lowell Ahart 1998-6-11 9216 Siskiyou 5 mi n of Macdoel (Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Road and Highway 97); Butte Valley National Grassland 1295 Comment
  RSA0125031  Senecio integerrimus var. exaltatus Philip A. Munz 1952-7-2 17882 Siskiyou Road to Baldy Mt. northwest of Happy Camp. 1494 Comment
  HSC617  Senecio integerrimus var. major William J. Ferlatte 1966-7-7 197 Siskiyou Caribou Basin 1982 Comment
  HSC61995  Senecio integerrimus var. major Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  HSC67944  Senecio integerrimus var. major J. P. Smith 1973-5-5 6439 Siskiyou Along Cook and Green Pass Rd. Comment
  HSC81662  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1980-7-17 6082 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  SEINET11803191  Senecio integerrimus var. major H. P. Chandler 1901-1 1606 Siskiyou near Marble Mountain, North Coast Ranges 1981 Comment
  HSC61997  Senecio triangularis Ruby Van Deventer 1938-7-29 Siskiyou Poker Flat 1585 Comment
  RSA473097  Senecio triangularis B. C. Templeton 1957-6-22 7744 Siskiyou Near the summit of Scott Mt. Comment
  SBBG27378  Sibbaldia procumbens L. C. Wheeler 1934-8-2 3018 Siskiyou Alex Hole, Alex Cyn 1889 Comment
  UC114369  Sibbaldia procumbens Thomas Howell May 1889 1383 Siskiyou Hornbrook Comment
  UC1409367  Sibbaldia procumbens Frederick W. Oettinger 1968-8-23 607 Siskiyou ridges near Diamond Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2072 Comment
  RSA211491  Sibbaldia procumbens William J. Ferlatte 1967-8-20 1050 Siskiyou Caribou Basin. Sawtooth Ridge. 2043 Comment
  RSA448541  Sidalcea Louis C. Wheeler 1934-7-3 2862 Siskiyou Soda Creek, Sterling Mt. Siskiyou Mountains. (Mt. Diablo Mer.) 1677 Comment
  HSC103910  Sidalcea asprella subsp. nana Dana York 2010-9-12 3018 Siskiyou Six Rivers National Forest; ~1.7 km NW of Broken Rib Mountain, in dense forest below road 1250 Comment
  CAS-BOT-BC205789  Sidalcea oregana Annie M. Alexander; Louise Kellogg 1949-7-23 5852 Siskiyou At Sky High Valley, Paradise Lake, Marble Mountains 1920 Comment
  RSA211117  Sidalcea oregana subsp. oregana W. J. Ferlatte 1966-8-18 419 Siskiyou Along the South Fork of the Salmon River between the campground and Carter s. 1524 Comment
  HSC76675  Sidalcea oregana subsp. spicata K. T. Stillman 1976-7-21 280 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  UC170181  Sidalcea oregana subsp. spicata Harley P. Chandler June, 1901 1707 Siskiyou near Marble Mountain (Shackleford Canyon); North Coast Ranges, near Marble Mountain 1828 Comment
  UCD39820  Sidalcea oregana subsp. spicata A. H. Murphy 1955-7-27 D- 2 Siskiyou Klamath National Forest. Marble Mountains, Cold Springs Meadow. 1676 Comment
  CAS-BOT-BC384461  Silene antirrhina Volney Rattan 1879-1-1 s.n. Siskiyou Klamath Comment
  UC668092  Silene campanulata Joseph P. Tracy 1935-8-1 14421 Siskiyou 1 mi e Salmon Summit Mine (head of Knownothing Creek); , e of Salmon Summit Mine 1767 Comment
  CAS-BOT-BC181191  Silene campanulata subsp. glandulosa Marion Ownbey; Fred G. Meyer 1940-7-6 2199 Siskiyou Summit of Cayenne Ridge, Marble Mountain Comment
  POM100902  Silene campanulata subsp. greenei Geo. D. Butler 1909-7-15 962 Siskiyou Russian Creek. 1829 Comment
  CAS-BOT-BC388966  Silene grayi Robert F. Thorne; Fred Oettinger 1969-8-10 39001 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta 2438 Comment
  RSA233662  Silene grayi R. F. Thorne, Frederick W. Oettinger 1969-8-10 39001 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  UC454247  Silene grayi I. J. Condit 1911-7-27 Siskiyou Castle Lake 1981 Comment
  UC60937  Silene grayi Geo. B. Grant September 1902 5094 Siskiyou Horse Camp , Horse Camp (Mount Shasta) 2438 Comment
  CAS-BOT-BC388995  Silene laciniata subsp. californica Alice Eastwood 1912-7-24 1370 Siskiyou Castella Comment
  CAS-BOT-BC389421  Silene lemmonii Peter H. Raven 1956-9-5 10447 Siskiyou North Fork of Sacramento River 2194 Comment
  JEPS69769  Silene lemmonii W. B. and V. G. Cooke 1972-7-6 45462 Siskiyou Mud Creek Dam Road , Mud Creek Dam Road (Mt. Shasta) 1066 Comment
  HSC59820  Silene menziesii D. H. Norris 1968-7-28 2198 Siskiyou Along Salmon River ca. 1 mi. S of Big Flat 1524 Comment
  HSC44727  Silene vulgaris J. O. Sawyer, E. Cope 1977-6-18 2902 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  CAS-BOT-BC75153  Sisymbrium altissimum A. A. Heller 1916-7-21 12480 Siskiyou Near Upton. 1097 Comment
  RSA113633  Sisymbrium altissimum R. McP Brown 1956-7-20 s.n. Siskiyou Lava Beds National Monument, Captain Jack s Stronghold. Comment
  UCR21089  Sisyrinchium bellum T. W. Fisher, Earl Oatman, R. E. Orth 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  SEINET3992515  Smilacina stellata var. sessilifolia Unknown 1959-7-9 7271 Siskiyou Poker Flat 1536 Comment
  RSA237939  Smilax jamesii Frederick W. Oettinger 1968-9-4 691 Siskiyou Outlet of Abbotts Lake. Salmon Mountains. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1723 Comment
  RSA428795  Solanum umbelliferum Louis C. Wheeler 1934-7-3 428795 Siskiyou Head of Soda Creek. Sterling Mt. 1768 Comment
  CAS-BOT-BC157011  Solanum umbelliferum L. C. Wheeler 1934-7-3 2853 Siskiyou Soda Creek, Klamath National Forest 1707 Comment
  RSA105461  Solanum umbelliferum Douglas Barbe 1955-6-27 2 Siskiyou 2 miles E of Callahan at Trinity Center Road junction 976 Comment
  RSA496333  Solanum umbelliferum Elaine Joyal, D. Mehlman 1988-6-25 1272 Siskiyou Happy Camp - Takilma road at turn-off to Bolan Lake 1524 Comment
  POM259775  Solidago canadensis subsp. elongata W. Bridge Cooke 1938-8-19 11510 Siskiyou Near the overflow creek from the Mount Shasta City Reservoir. 1220 Comment
  CAS-BOT-BC365566  Solidago elongata L. R. Short 1933-9-8 69 Siskiyou Klamath National Forest. Deer Camp 1889 Comment
  HSC469  Solidago elongata William J. Ferlatte 1966-8-3 290 Siskiyou Josephine Lake basin 1677 Comment
  CAS-BOT-BC365245  Solidago velutina subsp. californica Grant 1902-9-14 5205 Siskiyou Dunsmuir Comment
  CDA7675  Sonchus arvensis subsp. uliginosus T. C. Fuller 1963-8-27 11162 Siskiyou South side of Dorris-Tulelake Road where the roadbed forms the north shore of Lower Klamath Lake, Lower Klamath Lake Wildlife Refuge, ca. 12 miles west of Hatfield. 0 Comment
  CAS-BOT-BC157324  Sorbus californica Wm. Bridge Cooke 1939-6-30 13576 Siskiyou Along the Sisson Southern Trail Comment
  RSA142661  Sorbus californica Al Hobart 1961-7-13 3 Siskiyou Mt. Preston. 1829 Comment
  CAS-BOT-BC158934  Sorbus scopulina W. R. Dudley 1901-8-1 s.n. Siskiyou Salmon Mountains Comment
  CAS-BOT-BC390714  Spergularia rubra Louis C. Wheeler 1934-9-2 3239 Siskiyou Klamath National Forest. Miller Glade 1828 Comment
  RSA0097338  Spergularia rubra var. perennans M. B. Dunkle 1945-7-25 9245 Siskiyou Klamath National Forest; Marble Mts. Comment
  CAS-BOT-BC149688  Spiraea douglasii Louis C. Wheeler 1934-8-16 3176 Siskiyou 2 miles SE White Mts., Siskiyou Mts. 1737 Comment
  LA208255  Spiraea douglasii Steve Morgan; 1987-7-28 Siskiyou Mount Shasta, Shasta Trinity National Forest, McGinnis Springs, 5 mi. NW of McCloud 1767 Comment
  CAS-BOT-BC152552  Spiraea splendens A. A. Heller 1916-7-22 12484 Siskiyou East side of Mt. Eddy 1676 Comment
  CAS-BOT-BC152553  Spiraea splendens Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou West side of Gumboot Lake, Trinity Mts. 1828 Comment
  CAS-BOT-BC152555  Spiraea splendens Doris K. Kildale 1929-7-20 8729 Siskiyou Raspberry Lake, near east spur Peston Peak 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
  CAS-BOT-BC395086  Stellaria nitens John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53395 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  CAS-BOT-BC482445  Stenanthium occidentale Dana York 2011-8-13 3053 Siskiyou Marble Mountain Wilderness, Klamath National Forest, E-slope of Black Marble Mountain 1950 Comment
  JEPS36850  Stephanomeria lactucina Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Mt. Shasta, half-way up Region of the Upper Sacramento Comment
  UC917271  Stephanomeria lactucina R. Tofsrud and J. M. Tucker 1948-8-4 1784 Siskiyou ca 1.5 mi nw McCloud Comment
  POM56351  Stephanomeria lactucina Copeland 1903-8-15 3838 Siskiyou Sisson. Comment
  UC92376  Stephanomeria lactucina unknown Siskiyou near Timber Line; Sissons Comment
  JEPS87638  Stephanomeria paniculata Vernon H. Oswald and Lowell Ahart 1994-8-10 6453 Siskiyou ca. 4.5 mi. (air) n.e. McCloud (Pilgrim Creek Rd. (FS 13) at Mud Creek, 2.7 mi. n. of Hwy. 89) 1097 Comment
  JEPS36903  Stephanomeria virgata subsp. pleurocarpa Geo. D. Butler 1908-8-30 138 Siskiyou near Fort Jones Comment
  SEINET10610738  Stipa occidentalis A. Arthur Heller 1916-6-22 Heller 11427 Siskiyou Open places in the yellow pine belt in coarse sandy soil near Black Butte north of Sisson, elevation about 3700 feet. 1097 Comment
  HSC19122  Stipa occidentalis var. californica J. O. Sawyer 1969-8-4 1842 Siskiyou Above Sugar Lake 2134 Comment
  CAS-BOT-BC61133  Streptanthus barbatus G. L. Stebbins, Jr.; J. A. Jenkins 1937-7-17 2428 Siskiyou East and northeast slope of spur of Rainbow Ridge above Sulloway Creek about 1.5 mile west of Mount Shasta City. 1188 Comment
  CAS-BOT-BC87852  Streptanthus tortuosus A. A. Heller 1940-7-25 15769 Siskiyou Along the pathway above Horse Camp Lodge, Mount Shasta. 2438 Comment
  CAS-BOT-BC87855  Streptanthus tortuosus Lincoln Constance; Reed C. Rollins 1942-5-13 2901 Siskiyou Klamath River near Clear Creek, 8 miles south of Happy Camp. 304 Comment
  RSA211226  Streptanthus tortuosus William J. Ferlatte 1966-6-22 79 Siskiyou Josephine Lake basin. Trinity Alps. 1677 Comment
  UC618767  Streptanthus tortuosus var. orbiculatus W. Bridge Cooke 1938-8-18 11497 Siskiyou Horse Camp Slopes Mt. Shasta Comment
  HSC18897  Streptanthus tortuosus var. tortuosus J. O. Sawyer 1968-7-9 422 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  HSC18895  Streptopus amplexifolius J. O. Sawyer 1968-6-25 315 Siskiyou Along Horse Range Creek 1829 Comment
  CAS-BOT-BC516429  Streptopus amplexifolius Roxana S. Ferris; Laura Lorraine 1948-6-12 11749 Siskiyou French Creek Logging Road west of Callahan 1219 Comment
  UC1190159  Streptopus amplexifolius var. americanus Ira L. Wiggins 1955-7-24 13502 Siskiyou China Creek; trail at crossing, above diversion dam 1301 Comment
  HSC92954  Stuckenia filiformis subsp. alpina Jennifer Whipple 1977-8-6 2199 Siskiyou Dobkins Lake 2058 Comment
  SD61056  Suaeda calceoliformis Darley F. Howe 1964-8-5 3939 Siskiyou 13.4 miles east of junction with Highway 97 on state line road. 1220 Comment
  CHSC71301  Swertia albicaulis var. albicaulis Vernon H. Oswald; Lowell Ahart 1998-6-11 9186 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
  UC180106 Image available Swertia albicaulis var. albicaulis H. M. Hall and E. B. Babcock 1903-6-17 4113 Siskiyou near Sheep Rock; Sierra Nevada Mountains, Mount Shasta; near Sheep Rock, Mt. Shasta, Siskiyou Co. 1524 Comment
  HSC68027  Swertia albicaulis var. nitida J. P. Smith, Steve Selva 1970-7-15 4359 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  UC166206  Swertia albicaulis var. nitida Geo. D. Butler 1908-6-25 416 Siskiyou near Yreka Comment
  UC28695  Symphoricarpos albus var. laevigatus Milo S. Baker 1893-6 193 Siskiyou Medicine Lake Comment
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Jun 7 2008
  CAS-BOT-BC234800  Symphoricarpos mollis A. A. Heller 1915-8-24 12202 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC4003  Symphoricarpos mollis C. B. Wolf 1927-8-27 1113 Siskiyou Klamath River at Happy Camp. Comment
  HSC46797  Symphoricarpos mollis William J. Ferlatte 1976-9-22 1864 Siskiyou Yellow Rose Mine trail. 1615 Comment
  CAS-BOT-BC269708  Symphoricarpos mollis W. R. Dudley 1901-8-24 s.n. Siskiyou Four Mile [Fourmile] Creek Trail, Salmon Mts. Comment
  CAS-BOT-BC245772  Symphoricarpos rotundifolius Dorothy Parker 1947-5-23 183 Siskiyou Northeast slopes of the Gazelle Mountains 1493 Comment
  CAS-BOT-BC245773  Symphoricarpos rotundifolius Wm. Bridge Cooke 1938-8-23 11578 Siskiyou Above Bolam Creek, Mount Shasta 2590 Comment
  CAS-BOT-BC245775  Symphoricarpos rotundifolius Wm. Bridge Cooke; V. G. Cooke 1963-7-10 34270 Siskiyou Along Bolam logging road, north Side of Mt. Shasta 2133 Comment
  CAS-BOT-BC99034  Symphyotrichum cusickii Doris K. Kildale 1928-8-20 6619 a Siskiyou Hancock Lookout, on trail to Marble Mt. Comment
  CAS-BOT-BC97880  Symphyotrichum eatonii Elmer I. Applegate 1923-8-21 3923 Siskiyou Willow Creek, south of Lower Klamath Marsh Comment
  HSC76895  Symphyotrichum foliaceum K. T. Stillman 1976-9-9 485 Siskiyou Marble Mountain Wilderness Area; jump off point, trail to Box Camp 1951 Comment
  HSC29216  Symphyotrichum foliaceum var. parryi Frederick W. Oettinger 1968-8-3 375 Siskiyou Between Diamond Lake and Hancock Lake; Salmon Mtns. English Peak Area Comment
  CAS-BOT-BC98444  Symphyotrichum spathulatum Alice Eastwood 1921-7-28 10912 Siskiyou Medicine Lake Comment
  CAS-BOT-BC98920  Symphyotrichum spathulatum var. intermedium L. R. Abrams 1927-9-11 12137 Siskiyou Shasta Valley, Yreka to Gazelle Comment
  UC817369  Taeniatherum caput-medusae Louis C. Wheeler 1935-6-4 3546 Siskiyou Grenada, Shasta Valley Shasta Valley; Grenada, Shasta Valley 792 Comment
  UC564179  Taraxia tanacetifolia Elmer I. Applegate 1935-7-2 9285 Siskiyou old road to the lava beds near National Monument; Frenner's ranch Comment
  UCD107056  Taraxia tanacetifolia J. P. Smith; Steve Selva 1970-8-9 4586 Siskiyou Roadside by Grass Lake. Comment
  CAS-BOT-BC399878  Thalictrum polycarpum Gilbert Muth 1966-7-17 408 Siskiyou Trail to Lookout, Marble Mts. 1889 Comment
  CAS-BOT-BC399880  Thalictrum polycarpum G. Muth 1966-7-17 408 Siskiyou Marble Valley Comment
  HSC24028  Thalictrum polycarpum J. O. Sawyer 1971-7-15 2426 Siskiyou Along Red Rock Valley Creek 1585 Comment
  RSA184721  Thalictrum polycarpum Gilbert Muth 1966-7-17 408 Siskiyou Trail to lookout, Marble Mtns. Comment
  UC1473427  Thelypodium brachycarpum Gilbert Jerome Muth 1978-8-3 6794 Siskiyou near Kangaroo Lake (close to town of Callahan); China Mt. Quad. 1951 Comment
  MACF002235  Thelypteris nevadensis Donald Branscomb 1958-7-29 27255 Siskiyou Bald Mtn. Comment
  JEPS46260  Thermopsis A. E. Wieslander 1928-6-12 Siskiyou near Slate Creek; Siskiyou Mts., Klamath National Forest Comment
  HSC73350  Thermopsis macrophylla Gail Newton 1980-6-20 441 Siskiyou Near Bald Mtn. 1097 Comment
  CDA40204  Thermopsis robusta G. F. Hrusa, T. D. Wilfred 1998-7-5 14700 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.8. Sheet 1 of 2 Comment
  CHSC85707  Thermopsis robusta G. F. Hrusa 1998-7-5 14700 Siskiyou Siskiyou Mountains. Cedar Camp Rd. +/- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.8. Comment
  CHSC114172  Thinopyrum intermedium subsp. barbulatum R. E. Brainerd 2010-8-5 1732 Siskiyou Yreka, along Highway 2 near the northern edge of town. UTM Zone 10 530668E 4621733N. 774 Comment
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Apr 1 2016
  UC165977  Thlaspi montanum var. montanum Geo. D. Butler 1908-8-3 127 Siskiyou Log Lake , Shackleford Creek (Shackleford Creek) Comment
  UC165975  Thysanocarpus curvipes Geo. D. Butler 1910-3-27 1147 Siskiyou dry hill near Yreka; near Yreka Comment
  UC165986  Thysanocarpus radians Geo. D. Butler 1910-3-27 1146 Siskiyou near Yreka; near Yreka Comment
  HSC30566  Torreyochloa pallida var. pauciflora Frederick W. Oettinger, R. F. Thorne 1969-8-7 1267 Siskiyou Salmon Mtns., Pine Lake. 1768 Comment
  CHSC91339  Tragopogon dubius Lowell Ahart; John Dittes 2005-6-9 12049 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CDA7717  Tragopogon dubius T. C. Fuller 1958-6-19 1800 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  HSC6300  Tragopogon dubius R. C. Wunner 1965-9-8 507 Siskiyou California Lava Beds National Monument; Across road from Red Butte. 1570 Comment
  CAS-BOT-BC377156  Tragopogon porrifolius Alice Eastwood 1912-7-21 1294 Siskiyou Sisson Comment
  HSC62273  Triantha occidentalis subsp. occidentalis Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  CAS-BOT-BC519568  Triantha occidentalis subsp. occidentalis David D. Keck 1949-7-20 6363 Siskiyou Scott Mountain Summit: meadow at Scott Mountain Summit, at Trinity County line 1716 Comment
  CAS-BOT-BC519570  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1929-8-24 9036 Siskiyou Rattlesnake Meadow, Preston Peak 1524 Comment
  HSC91993  Triantha occidentalis subsp. occidentalis Jennifer Whipple 1976-7-8 1349 Siskiyou SW of Dobkins Lake 2256 Comment
  UC1187356  Trichostema simulatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6870 Siskiyou 3 mi below(N) of Scott Mountain road summit (on road to Callahan) 1219 Comment
  HSC72474  Trifolium eriocephalum J. P. Smith 1973-5-5 6460 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  CDA4286  Trifolium eriocephalum G. Deal 1967-5-29 Siskiyou Ralph Diaz property, Shamrock Road. 0 Comment
  POM208365  Trifolium eriocephalum subsp. eriocephalum Louis C. Wheeler 2677 Siskiyou North Hungry Creek 1311 Comment
  POM349496  Trifolium eriocephalum subsp. eriocephalum M. B. Dunkle 1944-7-15 9104 Siskiyou Siskiyou National Park Comment
  JEPS84185  Trifolium howellii L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6350 Siskiyou ca 1/2 mi se Red Butte (ca 7 mi nne of Seiad Valley, sw of Cook and Green Pass) 1730 Comment
  UC164078  Trifolium howellii Geo. D. Butler 1908-5-3 385 Siskiyou below Log Lake (canyon); Shackleford Creek Comment
  SBBG3845  Trifolium longipes subsp. oreganum H. and M. Dearing 1939-6-5 3556 Siskiyou E of McCloud 1066 Comment
  UCD111340  Trifolium macrocephalum B. Crampton 1959-4-1 s.n. Siskiyou Ernie Solus ranch; Dryland pasture, Edgewood area. 914 Comment
  UC57208  Trifolium repens H. M. Hall and E. B. Babcock 1903-6-1 4068 Siskiyou Sisson Mount Shasta Comment
  RSA237883  Trifolium repens Frederick W. Oettinger 1969-8-13 1361 Siskiyou Campsite area, English Lake. The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1707 Comment
  RSA237893  Trifolium repens Frederick W. Oettinger 1969-8-9 1311 Siskiyou Above trail near Young Cabin in region of Upper Abbots Cabin. The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1829 Comment
  SEINET10961865  Trifolium tridentatum var. tridentatum George D. Butler 1910-5-8 Butler 1313 Siskiyou Damp meadows near Yuku. Comment
  UC16894  Trifolium variegatum var. melananthum T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  UC726465  Trifolium wormskioldii A. A. Heller 1919-6-30 13285 Siskiyou near Durny's Mill Comment
  UC1197818  Trillium ovatum Joseph P. Tracy 1935-8-1 14409 Siskiyou on ridge between Salmon and New Rivers (at extreme head of W. Fork Knownothing Creek); W. Fork Knownothing Creek 1889 Comment
  RSA605355  Trillium ovatum subsp. ovatum Louis C. Wheeler 1959-7-25 7599 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  HSC26619  Trisetum canescens J. P. Smith, Steve Selva 1970-6-16 4054 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  UCD93608  Trisetum canescens A. H. Murphy 1959-7-23 59 Y Siskiyou Shasta National Forest. North fork of Sacramento River. 1676 Comment
  HSC41816  Trisetum spicatum Robert Wharton 1977-8-20 Siskiyou Along E slope of Mt. Shasta at Wintun Glacier along ridge between Ash & Brewer Creeks 3354 Comment
  RSA184774  Trisetum spicatum Gilbert Muth 1966-8-3 491 Siskiyou Marble Valley Meadow, Marble Mtns. 1793 Comment
  CAS-BOT-BC521260  Triteleia bridgesii Volney Rattan 1879-6-1 s.n. Siskiyou Klamath River Comment
  CAS-BOT-BC133494  Triteleia crocea Dorothy Parker 1948-5-16 s.n. Siskiyou Near Harstrand Gulch, east side of Scott Valley 914 Comment
  UCSB25012  Triteleia crocea Breedlove, Dennis 1962-6-10 Siskiyou Along Indian Creek Road, 15.6 miles northwest of Happy Camp; Siskiyou Mountains 975 Comment
  RSA114961  Triteleia hendersonii E. K. Balls, Lee W. Lenz 1956-6-18 21717 Siskiyou 5.7 miles SE of Gazelle, Hwy 99, Yreka to Dunsmuir. 884 Comment
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May 2 2015
  SBBG122858  Triteleia hyacinthina B. Ertter, J. Kierstead, J. Nelson 1990-7-15 9369 Siskiyou ca. 1 mi E of Toad Lake, head of Middle Fk Sacramento River 1981 Comment
  UC635730  Triteleia ixioides subsp. anilina D. Tebbe 1929-6-7 143 Siskiyou Mt. Eddy Comment
  SD88529  Turritis glabra Darley F. Howe 1972-7-6 Siskiyou 1.3 miles south of Oregon State Line on road to Happy Camp 1645 Comment
  CAS-BOT-BC74104  Turritis glabra R. E. Frenkel 1963-7-14 214 Siskiyou Mount Shasta, below McBride Springs. About 20 feet north of Everitt Memorial Highway. 1432 Comment
  CAS-BOT-BC376181  Urtica dioica Andrew Townesmith; Karen M. Meyer 2007-8-3 895 Siskiyou Klamath National Forest, Oak Knoll Ranger District. Along state route 96, 5.2 miles west of National Forest boundary. Vicinity of Cayuse Day Use Area 576 Comment
  UCD121867  Utricularia minor Barry Rice 2007-7-8 BR 070704 Siskiyou Cedar Lake. 1742 Comment
  HSC19245  Vaccinium cespitosum J. O. Sawyer, Steve Selva 1969-8-1 1653 Siskiyou Along trail to Little Duck Lake 1951 Comment
  HSC31964  Vaccinium cespitosum Steve Selva, Roger Jensen 1974-8-16 14 Siskiyou N shore of Sugar Lake. Comment
  LA44627  Vaccinium cespitosum H. Lewis; M. Lewis 1951-7-12 sn Siskiyou Mt. Shasta, Panther Meadow, S side Comment
  UCD118045  Vaccinium cespitosum D. V. Hemphill 1974-7-28 s.n. Siskiyou Stanshaw Trail, 1/4 mile south of Jawbone Camp. Marble Mountain Wilderness Area. 1554 Comment
  JEPS66690  Vaccinium deliciosum Geo. D. Butler 1908-8-5 44 Siskiyou summit above Cold Springs 1828 Comment
  UC22198  Vaccinium deliciosum Harley P. Chandler June 1901 1617 Siskiyou near Marble Mountain; North Coast Ranges; near Marble Mt., Siskiyou Co. 2133 Comment
  UC56728  Vaccinium deliciosum Harley P. Chandler Jun 1901 1617 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  CHSC88622  Vaccinium membranaceum Gail A. Newton 1981-7-29 2328 Siskiyou Klamath National Forest. Near Willis Hole. 1365 Comment
  HSC19353  Vaccinium membranaceum J. O. Sawyer 1968-6-18 222 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  HSC19362  Vaccinium membranaceum J. O. Sawyer 1968-7-2 376 Siskiyou Upper drainage of Joe Creek on steep N facing slopes. 1677 Comment
  RSA238867  Vaccinium membranaceum Frederick W. Oettinger 1968-8-1 344 Siskiyou SW side of Little Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  CAS-BOT-BC199477  Vaccinium parvifolium Doris K. Kildale 1929-8-24 8838 Siskiyou Preston Peak 2225 Comment
  CAS-BOT-BC199480  Vaccinium parvifolium Elmer I. Applegate 1930-8-11 6602 Siskiyou Cook and Green Creek, Siskiyou Mountains, Applegate River Watershed Comment
  HSC83883  Vaccinium scoparium K. Berg, Stephanie Bennett 1986-8-25 643 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little S Fork of Salmon River, above Little S Fork Lake 1982 Comment
  HSC44966  Vaccinium uliginosum J. O. Sawyer 1978-6-20 3275 Siskiyou Marble Mtn. Wilderness Area, Hamilton Camp 1829 Comment
  HSC86447  Vaccinium uliginosum D. K. Imper Jul 1987 Siskiyou Marble Mtn. Wilderness Area, Haypress Meadow, 8 mi. E of Somes Bar 1372 Comment
  POM67761  Valeriana sitchensis subsp. sitchensis Geo. D. Butler 1910-7-7 1655 Siskiyou Shackleford Creek. 1220 Comment
  JEPS33027  Vancouveria hexandra W. L. Jepson 1907-7-19 2935 Siskiyou East Fork Illinois River; Siskiyou Mts., East Fork Illinois River Comment
  HSC102708  Ventenata dubia J. P. Smith 2013-6-17 13741 Siskiyou Margin of vernal pool and adjacent conifer forest. 1430 Comment
  CAS-BOT-BC529106  Veratrum californicum Doris K. Kildale 1928-8-19 6501 Siskiyou English Lake, head of north Fork of Salmon River 1828 Comment
  JEPS62205  Veratrum californicum var. californicum W. L. Jepson 1914-8-13 5796 Siskiyou Sisson 1097 Comment
  UC1187638  Veratrum insolitum Lincoln Constance, Rimo Bacigalupi, and Lawrence R. Heckard 1960-7-21 3692 Siskiyou Callahan road 13 mi e Cecilville; Salmon Mountains; Sheet 2 1371 Comment
  RSA123556  Verbascum blattaria G. D. Barbe 1955-7-7 143 Siskiyou East side of Forest Camp. Etna. 884 Comment
  RSA74738  Verbascum blattaria Albert M. Vollmer, L. Beane 1951-6-2 48 Siskiyou Klamath River Hwy, between US 99 and Gottville. Comment
  UC922558  Verbascum blattaria Annie M. Alexander and Louise Kellogg 1948-9-7 5588