Search Results — 2000 specimen records retrieved (1379 records with coordinates)
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC4976  Abies X shastensis J. O. Sawyer 1968-9-13 715 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC69269  Abies X shastensis John Palmer 1980-7-24 640 Siskiyou Dillon Divide 1707 Comment
  HSC99294  Abies concolor T. Jimerson, J. Pageau 1979-6-15 558 Siskiyou Near Bark Shanty Camp, close to the town of Orleans. 1067 Comment
  JEPS47983  Abies concolor B. Wise Neilsen 1936-10-18 Siskiyou 2 mi nw Etna Mt.; Salmon Mt. Comment
  JEPS82417  Abies concolor Gilbert Muth 1966-8-3 494 Siskiyou Marble Valley Marble Mt. Wilderness Area, Marble Mt. 1792 Comment
  UCR95628  Abies concolor L. C. Wheeler 1963-9-3 8338 Siskiyou Siskiyou Mtns. Cyclone Gap chrome mine Comment
  SEINET8058010 Image available Abies concolor Jack Major, R. Pemble, M. Fleschner 1966-9-6 Siskiyou Beside trail from Lovers Camp to Marble Valley Guard Station (Sec. 7, T 3 N, R12 W), Marble Mountains 1372 Comment
  HSC49827  Abies lasiocarpa D. A. Thornburgh Aug 1978 Siskiyou Junction of Sky lake and Main Rim trails 1921 Comment
  UC139968  Abies magnifica var. magnifica Wm. M. Canby, Profs. C. S. Sargent and John Muir 1897-9-7 680 Siskiyou Mt. Shasta Comment
  UC333504  Abies magnifica var. shastensis unknown 1891-11-12 Siskiyou near Mt. Shasta Comment
  HSC68464  Acer circinatum Maralyn A. Renner 1980-7-5 1532 Siskiyou Doe Flat 1220 Comment
  JEPS42737  Acer circinatum Willis L. Jepson 1894-8-9 13942 Siskiyou Shasta Sprs., Sacramento River Canyon Region of the Upper Sacramento, Sacramento River Canyon Comment
  SEINET3111501  Acer circinatum Steve Selva, Roger Jensen 1974-8-22 33 Siskiyou Along trail from Doe Flat campground to Buck Lake. Comment
  JEPS42680  Acer glabrum Geo. D. Butler 1909-7-2 908 Siskiyou Highland Mine Comment
  CAS-BOT-BC331023  Acer glabrum var. glabrum John Thomas Howell 1937-7-26 13554 Siskiyou Caribou Gulch Comment
  CAS-BOT-BC331048  Acer glabrum var. glabrum Wm. Bridge Cooke 1938-6-17 11003 Siskiyou Mount Shasta; Sisson Southern Trail. 1981 Comment
  UC166210  Acer glabrum var. glabrum Geo. D. Butler 1908-8-5 531 Siskiyou camp below Cold Spring (Woolly Creek); Woolly Creek Comment
  HSC2804  Acer macrophyllum C. B. Wolf 1927-8-26 1037 Siskiyou Along Klamath River, 4 mi. N of Gottville Comment
  SEINET12766399  Acer macrophyllum Alv Dan Youngberg 1964-7-20 79 Siskiyou Growing in canyon bottom of East Fork of Indian Creek.; 0 610 Comment
  CAS-BOT-BC336937  Acer negundo var. californicum Geo. D. Butler 1910-5-22 1384 Siskiyou Yreka Creek Comment
  UC415462  Achillea millefolium A. A. Heller 1905-6-19 8067 Siskiyou Grenada Comment
  UCD77247  Achillea millefolium Robert E. Preston 2001-6-23 1618 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn. 1706 Comment
  CAS-BOT-BC30444  Achillea millefolium D. M. Traugh 1933-5-25 62 Siskiyou Klamath N.F. 609 Comment
  RSA416235  Achillea millefolium J. P. Smith 1973-5-5 6527 Siskiyou Scott Bar along the Scott River. Comment
  RSA50158  Achillea millefolium E. K. Balls 1949-7-9 s.n. Siskiyou Salmon Mtns. top of pass on rd from Etna to Sawyer's Bar. 1479 Comment
  HSC27621  Achlys triphylla Carl W. Mize 1972-6-22 88 Siskiyou Draw past cut block #48 1113 Comment
  RSA78324  Achlys triphylla P. A. Munz 1952-7-1 17859 Siskiyou Baldy Mtn road, NW of Happy Camp, Siskiyou Mts. 1220 Comment
  UC1409393  Achlys triphylla subsp. triphylla Frederick W. Oettinger 1969-9-4 1669 Siskiyou near gap between Tom's Lake Basin and Tobacco Lake Basin; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1828 Comment
  POM115235  Achnatherum lemmonii var. lemmonii Geo D. Butler 1909-6-4 810 Siskiyou Dry land near Yreka Comment
  CAS-BOT-BC210751  Achnatherum nelsonii Roxana S. Ferris; Laura Lorraine 1948-6-12 11791 Siskiyou Scott Mountain Road south of Callahan Comment
  CAS-BOT-BC105075  Achnatherum nelsonii subsp. dorei R. C. Wenk 2008-7-24 917 Siskiyou SW side of Mount Shasta, growing by side of road, Everitt Memorial Highway 1676 Comment
  JEPS72979  Achnatherum occidentale subsp. californicum W. L. Jepson 1940-6-27 20037 Siskiyou Mt. Shasta, e slope Mt. Shasta 1828 Comment
  RSA129519  Achnatherum occidentale subsp. californicum H. A. Jensen 1933-7-27 334 Siskiyou Grey Butte 2073 Comment
  RSA238981  Achnatherum occidentale subsp. californicum Frederick W. Oettinger 1968-9-6 744 -a Siskiyou Tom's Lake region, Edge of Bear Meadow . The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2188 Comment
  UC1133074  Achnatherum occidentale subsp. californicum H. A. Jensen 1933-7-27 Siskiyou Grey Butte Dunsmuir Quadrangle Comment
  UC1037095  Achnatherum occidentale subsp. occidentale Leo Whitney 1934-6-29 2193 Siskiyou near Tennant (Antelope Creek); Antelope Creek 1463 Comment
  UCD51181  Achnatherum occidentale subsp. pubescens Mr. Roseman 1913-1 7 Siskiyou Butte Valley. Comment
  CHSC86677  Acmispon denticulatus Jenny Marr 1993-7-1 60 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1408852  Aconitum columbianum Frederick W. Oettinger 1968-8-7 433 Siskiyou s.e. end Hancock Lake; Salmon Mts., High Lake Basins, English Peak Vicnity, Marble 1935 Comment
  HSC92159  Aconitum columbianum subsp. columbianum Jennifer Whipple 1976-7-8 1352 Siskiyou Along drainage into SW side of Dobkins Lake 2195 Comment
  CAS-BOT-BC391510  Aconitum columbianum subsp. columbianum A. A. Heller 1927-8-1 14433 Siskiyou At the State Teachers College, near Shasta City (Sisson) 1074 Comment
  HSC2388  Aconogonon davisiae William J. Ferlatte 1966-8-18 428 Siskiyou Willow Creek Trail. 2226 Comment
  UCD98556  Aconogonon newberryi Collector unknown Date unknown s.n. Siskiyou location unknown. Comment
  HSC61825  Aconogonon phytolaccifolium Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC391701  Actaea rubra John Thomas Howell 1937-7-23 13340 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UCD77303  Actaea rubra Robert E. Preston 2001-7-20 1692 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W se 1/4 of ne 1/4 Section 14 1743 Comment
  HSC22210  Actaea rubra J. O. Sawyer 1969-7-11 854 Siskiyou Ravine above Parrott Mill Rd. 1280 Comment
  UC1408851  Actaea rubra Frederick W. Oettinger 1968-9-1 635 Siskiyou e. side Abbotts lake; Salmon Mts., High Lake Basins, English Peak vicinity, Marble 1722 Comment
  HSC77281  Adenocaulon bicolor L. P. Janeway 1983-6-29 352 Siskiyou Along road 19N07 approx. 2 miles N of the Indian Cr. Rd. 701 Comment
  HSC68427  Adiantum aleuticum Maralyn A. Renner 1980-7-4 1400 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  CAS-BOT-BC68956  Adiantum aleuticum A. A. Heller 1915-8-26 12235 Siskiyou Mt. Eddy in open swampy places in the forest. 1828 Comment
  SD88459  Agastache urticifolia Darley F. Howe 1972-7-5 Siskiyou 1.4 miles south of Oregon state lines on road to Happy Camp 1646 Comment
  HSC2364  Agastache urticifolia William J. Ferlatte 1966-8-19 440 Siskiyou Kidd Creek Trail. 1707 Comment
  CAS-BOT-BC29451  Ageratina occidentalis Alice Eastwood 1912-8-30 1972 Siskiyou Mount Eddy Comment
  JEPS95036  Ageratina occidentalis Vernon Oswald and Lowell Ahart 1997-7-28 8776 Siskiyou 14.5 mi s of Medicine Lake (Forest Route 49 (Powder Hill Road) 1.5 mi n of 41N03 to Porcupine Butte); Forest Route 49 (Powder Hill Road) 1371 Comment
  SDSU6844  Ageratina occidentalis D. F. Howe 1964-8-6 3942 Siskiyou 3.5 miles south of Happy Camp on #96, Klamouth National Forest. 152 Comment
  CAS-BOT-BC29517  Agoseris William A. Dayton Jr. 1912-7-28 160 Siskiyou Shasta Forest, Ash Creek Sink Range 1188 Comment
  CAS-BOT-BC15482  Agoseris X dasycarpa Alice Eastwood 1921-7-29 10959 Siskiyou Medicine Lake Comment
  CHSC253  Agoseris aurantiaca V. Holt 1943-8-14 Siskiyou Marble mountains. 1828 Comment
  HSC4755  Agoseris aurantiaca William J. Ferlatte 1966-8-5 322 Siskiyou N side of Caribou Mtn. 1921 Comment
  JEPS35716  Agoseris aurantiaca var. aurantiaca Geo. D. Butler 303 Siskiyou head of, near summit Wooly Creek 1767 Comment
  HSC61110  Agoseris grandiflora Ruby Van Deventer 1955-8-5 Siskiyou Doe Flat; Forest Service Road 17N04 Comment
  RSA167323  Agoseris grandiflora Joseph P. Tracy 1949-9-15 18555 Siskiyou 1.5 miles up Taylor Creek from mouth (branch of E. Fork of S. Fork Salmon River) 5 miles northeast of Cecilville. Comment
  UC163887  Agoseris grandiflora Geo. D. Butler 1910-6-10 1555 Siskiyou Comment
  UC163890  Agoseris grandiflora var. grandiflora Geo. D. Butler 1909-6-4 761 Siskiyou Yreka Comment
  CAS-BOT-BC15344  Agoseris heterophylla Alice Eastwood 1923-5-20 11862 Siskiyou Shasta Springs Comment
  HSC77023  Agoseris heterophylla K. T. Stillman 1976-6-25 53 Siskiyou Marble Mtn. Wilderness Area, SW facing slope. 1921 Comment
  CAS-BOT-BC13186  Agoseris monticola John Thomas Howell 1939-8-8 15187 Siskiyou Marble Mountains, Black Mountain Comment
  RSA13870  Agrostis exarata L. C. Wheeler 1934-6-26 2792 Siskiyou Siskiyou Mountains, Cottonwood Creek. 838 Comment
  UCD52352  Agrostis exarata A. H. Murphy 1956-8-15 56 I Siskiyou Klamath National Forest, Tangle Blue Creek. 1767 Comment
  RSA129196  Agrostis gigantea H. S. Yates 1936-6-21 5824 Siskiyou one mile southeast of Gazelle. 793 Comment
  UCD52988  Agrostis idahoensis L. Whitney 1935-7-15 3519 Siskiyou Bullseye Lake, 2 miles southeast of Medicine Lake. Comment
  CAS-BOT-BC138943  Agrostis pallens Doris K. Kildale 1928-7-25 5914 Siskiyou Klamath River - Mack's Creek near Hamburg. Comment
  HSC22424  Agrostis pallens J. O. Sawyer 1969-7-24 1511 Siskiyou SE facing slope W of Sugar Lake 1905 Comment
  RSA239088  Agrostis pallens Frederick W. Oettinger 1969-8-16 1390 b Siskiyou near Upper English Lake? The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  SEINET7594101 Image available Agrostis pallens F. W. Oettinger 1969-1 1456 Siskiyou between King Davids Peak and Abbotts basin, Salmon Mountains 1905 Comment
  SEINET7594104 Image available Agrostis pallens F. W. Oettinger 1968-1 637 Siskiyou southeast side of Abbott's Lake, Salmon Mountains 1722 Comment
  RSA116451  Agrostis scabra A. H. Murphy 1956-8-16 56 W Siskiyou Tangle Blue Lake, Klamath National Forest 1768 Comment
  UCD53518  Agrostis stolonifera Geo. D. Butler 1909-6-28 852 Siskiyou Almy Creek, near Yreka. Comment
  UC1265423  Agrostis thurberiana Frederick W. Oettinger 1969-9-4 1645 Siskiyou Tobacco Lake meadows, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area, English P 1889 Comment
  CAS-BOT-BC138479  Agrostis variabilis Wm. Bridge Cooke 1938-8-18 11487 Siskiyou Mount Shasta. Horse Camp Slopes. 2514 Comment
  CAS-BOT-BC138482  Agrostis variabilis Wm. Bridge Cooke 1938-8-18 11487 Siskiyou Mount Shasta. Horse Camp Slopes. 2514 Comment
  UC843375  Allium bolanderi Alice Eastwood 1912-8-30 2004 Siskiyou Mount Eddy Comment
  CAS-BOT-BC462996  Allium bolanderi Volney Rattan 1903-1-1 s.n. Siskiyou Klamath Comment
  UC722290  Allium bolanderi C. L. Hitchcock, J. S. Martin 1939-7-9 5309 Siskiyou 1 mi above Bucher's Ranch (ca. 3 mi w of Turner's Camp) 1219 Comment
  UC1090392  Allium falcifolium Milo S. Baker 1957-6-16 13123 Siskiyou Scott Mt. 1645 Comment
  CAS-BOT-BC469246  Allium falcifolium John Thomas Howell 1937-7-29 13526 . Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC132148  Allium siskiyouense Geo. D. Butler 1909-5-3 791 Siskiyou Hill near Yreka Comment
  CAS-BOT-BC478030  Allium validum Doris K. Kildale 1928-8-19 6545 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  RSA237880  Allium validum Frederick W. Oettinger 1968-8-1 343 Siskiyou South side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  NY334899  Allocarya laxa H. E. Brown 1897-8-1 590 Siskiyou South side Mt. Shasta 1524.0 Comment
  CAS-BOT-BC453446  Allotropa virgata Alice Eastwood 1912-9-1 2060 Siskiyou Mount Shasta Comment
  CAS-BOT-BC171407  Alnus incana subsp. tenuifolia C. B. Wolf 1930-10-22 1752 Siskiyou 1 miles W of Mt. Shasta City 1066 Comment
  HSC29266  Alnus incana subsp. tenuifolia Frederick W. Oettinger 692 Siskiyou Marble Mtn. Wilderness Area, outlet of Abbotts Lake 1723 Comment
  POM106426  Alnus incana subsp. tenuifolia Edward Palmer 1892-7-27 2559 Siskiyou Mount Shasta and vicinity. Comment
  CAS-BOT-BC171415  Alnus incana subsp. tenuifolia W. R. Dudley 1899-8-9 s.n. Siskiyou Below Upton Comment
  CAS-BOT-BC169644  Alnus rhombifolia W. R. Dudley 1899-8-8 s.n. Siskiyou near Big Spring - Sisson Comment
  CAS-BOT-BC169650  Alnus rhombifolia H. A. Thomas; J. H. Thomas 1954-6-22 4447 c Siskiyou Salmon - Trinity Mountains. About 6 mi SE of Cecilville. Between Rushand Big Bend Creeks, 0.25-0.5 mi N of S Fork of Salmon River 975 Comment
  RSA11791  Alnus rhombifolia Elmer I. Applegate 1923-9-5 3936 Siskiyou Klamath River 12 miles below the Pacific Highway. Comment
  RSA452797  Alnus rhombifolia E. E. Stanford 1930-6-15 1585 Siskiyou 1 mile north of Dunsmuir. Comment
  RSA238554  Alnus viridis subsp. sinuata Frederick W. Oettinger 1968-8-24 627 Siskiyou The Salmon Mountains, in the vicinity of English Peak, Marble Mountain Wilderness Area, between the flumes and Toms Lower Pond. 1890 Comment
  CHSC88382  Alyssum alyssoides Jenny Marr 1993-7-1 187 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC17200  Alyssum alyssoides Alice Eastwood 1923-5-23 11935 Siskiyou Cantara. S.P.R.R. Comment
  NY785946  Alyssum alyssoides A. A. Heller 1905-6-17 8054 Siskiyou Comment
  UCD114086  Alyssum alyssoides John Thomas Howell 1952-6-14 2 Siskiyou Between Gazelle and Callahan. Comment
  JEPS95323  Ambrosia artemisiifolia Vernon H. Oswald and L. Ahart 1994-8-10 6448 Siskiyou T40N R2W NW1/4 SW1/4 Sec. 34, 3440 ft, Yellow Pine Forest. Pilgrim Creek Rd. (FS13) at the railroad crossing 0.9 mi N of Hwy. 89, ca. 3 mi (air) ENE of McCloud 1048 Comment
  JEPS123489  Amelanchier alnifolia var. semiintegrifolia E. T. Doucette 2013-5 13 -114 Siskiyou SkiPark Highway Pierce. Comment
  UC796436  Amelanchier alnifolia var. semiintegrifolia Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11777 Siskiyou about 5.5 mi from Etna on forks of Salmon Road Comment
  HSC41465  Amelanchier pallida J. P. Smith, Steve Selva 1970-6-16 4065 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  HSC4956  Amelanchier pallida J. O. Sawyer 1968-9-9 657 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC4963  Amelanchier pallida J. O. Sawyer 1968-6-18 178 Siskiyou Above S Russian Creek on W side. 1463 Comment
  JEPS126016  Amelanchier pallida C. S. Campbell, M. Lorusso 2011-5-20 11 -317 Siskiyou Pat Trinca's property, east side of Hilt Valley Comment
  JEPS126019  Amelanchier pallida E. T. Doucette 2013-5-20 13 -132 Siskiyou Greenhorn Road, Yreka, 8.7 miles from business district. Comment
  SEINET3110844  Amelanchier pallida Steve Selva, Roger Jensen 1974-8-16 7 Siskiyou Above Sugar Lake. Comment
  SEINET10628528 Image available Amelanchier pallida A. Arthur Heller 1905-6-5 Heller 7979 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  CAS-BOT-BC136909  Amelanchier utahensis Doris K. Kildale 1928-8-18 6412 Siskiyou North Fork Salmon River at Finley Camp Comment
  SBBG16035  Amelanchier utahensis D. Myrick 1961-6-20 279 Siskiyou rd to Bear Springs E of Mt Shasta City 1371 Comment
  UC1483468 Image available Amelanchier utahensis Maralyn A. Renner 1980-8-7 2432 Siskiyou ridge s Preston Peak; Klamath National Forest, Preston Peak Quad. 1950 Comment
Read comments
Dec 20 2007
  UCSB15828  Amelanchier utahensis Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  CHSC88371  Amphiscirpus nevadensis Jenny Marr 1993-7-1 177 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CHSC91230  Amphiscirpus nevadensis Lowell Ahart; John Dittes 2005-6-9 12025 Siskiyou Meadow area along a small drainage, on the west side of a poor rock fence, about 150 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
  RSA611110  Amsinckia menziesii L. C. Wheeler 1935-6-2 3539 Siskiyou Shasta River, Siskiyou Mts. 732 Comment
  RSA0089979  Amsinckia retrorsa E. B. Copeland 1903-7-2 3552 Siskiyou Klamathon. Comment
  UC891433  Anaphalis margaritacea A. A. Heller 1915-8-26 12247 Siskiyou at, foot of Mt. Eddy Wagon Creek; Mt. Eddy Comment
  CAS-BOT-BC391795  Anemone deltoidea Geo. D. Butler 1910-7-9 1713 Siskiyou Marble Mountain 1676 Comment
  CAS-BOT-BC391804  Anemone deltoidea Alice Eastwood; John Thomas Howell 1937-6-26 5035 Siskiyou Salmon Mts. 5 miles sw. of Etna Comment
  CHSC32971  Anemone deltoidea J. P. Smith; Steve Selva 1970-6-16 4063 Siskiyou 8 miles west of Etna on road to Sawyers Bar. 1371 Comment
  CHSC95118  Anemone deltoidea L. P. Janeway 2006-7-2 8745 Siskiyou Klamath Ranges. Salmon Mountains; un-named creek at the sharp bend in the Music Creek Trailhead Road, 0.6 km south of Music Creek. North-facing slope just above the creek. 1762 Comment
  HSC29440  Anemone deltoidea Frederick W. Oettinger 1968-8-6 427 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1905 Comment
  RSA238287  Anemone deltoidea Frederick W. Oettinger 1968-8-6 427 Siskiyou SE corner of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  CHSC1425  Anemone drummondii M. Yoder 1941-7-6 Siskiyou Castle Lake. 1981 Comment
  UC375345  Anemone drummondii Geo. D. Butler 1908-8-5 45 Siskiyou summit above Cold Spring (Woolly Creek); Woolly Creek Comment
  HSC44  Anemone drummondii William J. Ferlatte 1966-8-4 317 Siskiyou Above Yellow Rose Mine 2134 Comment
  CAS-BOT-BC391979  Anemone occidentalis Paul C. Hutchison 1962-8-2 943 Siskiyou Mt. Shasta, between Panther Meadow and top of ski lift 2895 Comment
  HSC61188  Anemone occidentalis Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  CAS-BOT-BC391982  Anemone occidentalis Wm. Bridge Cooke 1938-7-21 11303 Siskiyou Mount Shasta. South of Horse Camp Comment
  POM365638  Anemone occidentalis M. B. Dunkle 1945-1 9231 Siskiyou Klamath National Forest; Marble Mountains, Black Marble ridge [?]. Comment
  JEPS109874  Anemone oregana var. oregana Dean W. Taylor 2005-7-12 19385 Siskiyou Antelope Creek; along unnamed tributary that drains from Rainbow Mountain, just upstream from the crossing of Forest Road 42N16 1697 Comment
  RSA470338  Angelica arguta var. arguta L. C. Wheeler 1934-8-16 3167 Siskiyou Siskiyou Mountains: 2 mi. east of White Mt. (Mt. Diablo Mer.) 1920 Comment
  RSA296046  Angelica tomentosa var. tomentosa J. M. DiTomaso 1980-8-5 1854 Siskiyou Baldy Mountain Lookout, 6 miles west of Happy Camp, 200 meters north of lookout in moist serpentine soil near spring 1707 Comment
  HSC44892  Antennaria argentea Maralyn O'Meara 1974-5-25 406 Siskiyou Along road to Duck Lakes trail 1402 Comment
  JEPS33938  Antennaria argentea George D. Butler 1909-5-9 700 Siskiyou Yreka Comment
  UC454329  Antennaria argentea I. J. Condit 1911-7-4 Siskiyou Shasta Retreat Comment
  POM34162  Antennaria argentea Geo. D. Butler 1909-5-31 756 Siskiyou Humbug Creek. Comment
  CAS-BOT-BC59158  Antennaria dimorpha Roxana S. Ferris; Laura Lorraine 1948-6-12 11830 Siskiyou Gazelle Mountain grade, road between Callahan and Gazelle 1499 Comment
  RSA261526  Antennaria dimorpha Jennifer Whipple 1972-4-30 58 Siskiyou 4 miles east of Etna on east side of Callahan Road, Weston Gulch. Comment
  UC485661  Antennaria geyeri Katharine Brandegee Siskiyou Edgewood Comment
  RSA93675  Antennaria geyeri F. W. Peirson 1923-7-20 3893 Siskiyou 2 miles below camp on Whitney Creek, Mt. Shasta. Comment
  HSC78310  Antennaria microphylla L. P. Janeway 1983-8-26 616 Siskiyou At Poker Flat, dry W side of meadow 1524 Comment
  HSC49950  Antennaria racemosa G. L. Clifton, Griswold 1979-8-12 13993 Siskiyou Near Isinglass Creek, close to the town of Fort Jones 1952 Comment
  RSA416693  Antennaria racemosa M. B. Dunkle 1944-6-26 9047 Siskiyou Deer Creek. 1829 Comment
  UC336312  Antennaria rosea unknown 1889-6-28 Siskiyou Edgwood Comment
  RSA238716  Antennaria rosea Frederick W. Oettinger 1968-8-5 402 -b Siskiyou 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
  UC29519  Antennaria rosea C. B. Bradley 1879-1 Siskiyou Comment
  UC1238901  Antirrhinum vexillocalyculatum subsp. breweri Freed W. Hoffman 1950-7-11 3724 Siskiyou 2.0 mi from north end of Cedar Camp road (Cedar Camp road, where the road joins the Klamath <River> again, and 42.5 mi n of Klamath <River> from the s end of Cedar Camp road, w Siskiyou Co.); North Coast Ranges Comment
  CHSC91227  Apera interrupta Lowell Ahart; John Dittes 2005-6-9 12007 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
  UCD18443  Apera interrupta Steve B. Orloff 2000-5-31 s.n. Siskiyou 4 miles north of Fort Jones, in Scott Valley, in alfalfa field on the SE side of Hwy 3. Comment
  SJSU6268  Apocynum androsaemifolium R. W. Trivelpiece 1971-8-18 71 Siskiyou c. 3.5 mi N of Cecilville on S Fork Salmon River, Salmon River Mts 1249 Comment
  POM130457  Apocynum androsaemifolium subsp. pumilum E. B. Copeland 1903-7-7 s.n. Siskiyou Hornbrook Comment
  RSA183745  Apocynum androsaemifolium subsp. pumilum Gilbert Muth 1965-8-6 191 Siskiyou Marble mts, trail to backside of Black Mt. Comment
  CAS-BOT-BC394979  Aquilegia formosa John Thomas Howell 1939-8-8 15153 Siskiyou Black Mt., Marble Mts. Comment
  CAS-BOT-BC394982  Aquilegia formosa John Thomas Howell 1937-7-22 13318 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC395146  Aquilegia formosa Alice Eastwood 1912-8-30 s.n. Siskiyou Mount Eddy Comment
  HSC82254  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson 1980-7-20 6179 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  SEINET10536203  Aquilegia formosa Mary Merello 1993-6-25 Merello 722 Siskiyou Shasta National Forest. At end of Forest Service Road 39N 28, road to Lower Falls and Fowlers Campground. Open conifer woodlands. Disturbed. Along McCloud River. 970 Comment
  SEINET5337610  Aquilegia formosa G. Butler 1910-6-17 1576 Siskiyou Humbug mountain 1219 Comment
  HSC67712  Aquilegia formosa var. truncata John Palmer 1980-7-24 612 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  UCR37538  Arabis breweri var. breweri L. P. Janeway 1983-7-4 382 Siskiyou South ridge of Little Grayback Mtn. Comment
  HSC22078  Arabis divaricarpa J. O. Sawyer 1969-7-24 1491 Siskiyou NE facing seep SW of Sugar Lake 1890 Comment
  UC61173  Arabis glabra W. A. Setchell, C. C. Dobie 1902-7-14 Siskiyou Sisson Mount Shasta Comment
  RSA0125767  Arabis glabra Frederick W. Oettinger, R. F. Thorne 1969-8-9 1309 Siskiyou Abbott s Upper Cabin. Salmon Mts. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1524 Comment
  UC165312  Arabis holboellii Geo. D. Butler 1910-7-8 1663 Siskiyou Log Lake Shackleford Creek 1219 Comment
  HSC39239  Arabis holboellii var. retrofracta J. P. Smith 1976-5-21 8764 Siskiyou Klamath National Forest, FS Rd. 40N08, 6.9 mi. from its junction with Hwy. 3 1524 Comment
  RSA78819  Arabis holboellii var. retrofracta P. A. Munz 1952-7-2 17897 Siskiyou Baldy Mountain ca. 6 miles west (by air) of Happy Camp. 1738 Comment
  CAS-BOT-BC16714  Arabis modesta Elmer I. Applegate 1932-4-16 7065 Siskiyou Between Hamburg and Seiad Valley, Klamath River. Comment
  POM144225  Arabis platysperma var. howellii M. S. Baker 1898-8-7 484 Siskiyou Medicine Lake. Comment
  RSA0129830  Arabis platysperma var. platysperma Frederick W. Oettinger 1968-8-5 412 Siskiyou Ridge between English Peak and Charmaine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2024 Comment
  CAS-BOT-BC27272  Arabis polytricha George Dexter Butler 1909-5-8 723 Siskiyou Near Yreka Comment
  RSA59496  Arabis sparsiflora E. K. Balls 1950-5-15 14704 Siskiyou Lava Beds National Monument, below Indian Well Public Camp. 1402 Comment
  UC166108  Arabis subpinnatifida Geo. D. Butler 1910-7-12 1763 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC171698  Aralia californica J. H. Thomas; H. A. Thomas 1954-7-22 4441 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville, between Rush and Big Bend Creeks, .25 - .5 miles N of S Fork of Salmon river. Along banks of Big Bend Creek. 975 Comment
  UC454524  Aralia californica I. J. Condit 1911-7-31 Siskiyou Shasta Springs Comment
  POM299041  Aralia californica Marion Ownbey, Fred G. Meyer 1940-7-8 2221 Siskiyou Along Cade Creek near its mouth, 3 miles east of Happy Camp Comment
  RSA238712  Arceuthobium abietinum Frederick W. Oettinger 1969-8-22 1509 Siskiyou Just west of the outlet and along the shoreline of Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1822 Comment
  SEINET2118123  Arceuthobium abietinum subsp. wiensii R. L. Mathiasen, C. M. Daugherty 2008-8-8 08 -23 Siskiyou Klamath National Forest. Baldy Mountain, 18.2 km W of Indian Creek on forest road 17N11 (Doolittle Creek Road) 1820 Comment
  SEINET2471293  Arceuthobium abietinum subsp. wiensii R. L. Mathiasen 2007-9-16 2007 -46 Siskiyou Ca. 18 km W. of Indian Creek on forest road 17N11 1340 Comment
  UC375255  Arceuthobium americanum Geo. D. Butler 1908-7-19 271 Siskiyou Comment
  SEINET2140102  Arceuthobium californicum R. L. Mathiasen 2003-1 2003 -37 Siskiyou 16 km from St. Rte 96 on forest rd. 14N21 (Killon Mtn. Rd.). 1360 Comment
  UC1037436  Arceuthobium campylopodum Douglas Barbe 1955-7-29 314 Siskiyou 3/4 mi e Scott Mtn Rd (on private rd to Big Carmen Lake); Scott Mtns 1706 Comment
  SEINET2471245  Arceuthobium cyanocarpum R. L. Mathiasen 2007-9-20 2007 -56 Siskiyou Above Gumboot Lake 1980 Comment
  SEINET2471356  Arceuthobium cyanocarpum R. L. Mathiasen 2007-9-20 2007 -54 Siskiyou 1.6 km N. of Park Creek trail head on forest road 17 2000 Comment
  UC1078871  Arceuthobium douglasii Job Kuijt 1957-6-26 1396 Siskiyou rd to Gumboot Lake Trinity Mtns w of Shasta (s fork of the Sacramento River) 1371 Comment
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Jun 7 2012
  SEINET8530036  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2003-7-27 2003 -43 Siskiyou 1.2 km NW of Ahlgren Cabin on Garden Gulch Trail Comment
  CAS-BOT-BC39979  Arctostaphylos nevadensis Ira L. Wiggins 1950-5-28 12373 Siskiyou Small bog on side of ridge above Grouse Creek, about 1.5 miles from Carmen Lake. 1584 Comment
  CAS-BOT-BC45413  Arctostaphylos nevadensis subsp. knightii Lester Rowntree 1934-5-11 s.n. Siskiyou Happy Camp Road, near Oregon State line. Comment
  CAS-BOT-BC46499  Arctostaphylos patula Alice Eastwood 1923-5-23 11907 Siskiyou Near Cantara. Comment
  CAS-BOT-BC46516  Arctostaphylos patula Doris K. Kildale 1929-8-24 8837 Siskiyou Preston Peak. 2228 Comment
  RSA238575  Arctostaphylos patula Frederick W. Oettinger 1968-8-15 527 Siskiyou At n. end of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  SEINET2029158 Image available Arctostaphylos patula L. C. Wheeler 1935-5-31 3413 Siskiyou Winston Butte, south base, west of Mt. Shasta 1189 Comment
  UC1005654  Arctostaphylos patula Frank W. Gould 1940-5-15 1245 Siskiyou n slope Goosenest Mountain 1524 Comment
  UC412711  Arctostaphylos patula Mus. Vert. Zool. 1911-6-15 145 Siskiyou Jackson Lake Comment
  CAS-BOT-BC46439  Arctostaphylos patula C. Hart Merriam 1910-10-2 s.n. Siskiyou Klamath River Loop, 3 or 4 mi. e. of Happy Camp. Comment
  HSC73228  Arctostaphylos viscida Gail Newton 1980-6-20 531 Siskiyou Near Bald Mtn. 1326 Comment
  CAS-BOT-BC47100  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1929-5-31 9155 Siskiyou Cecilville, s. Fork of Salmon River. Comment
  UC1190191  Arenaria congesta var. suffrutescens Ira L. Wiggins 1955-7-27 13515 Siskiyou Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  UC8104  Arenaria congesta var. suffrutescens Harley P. Chandler 1901-6-1 1674 Siskiyou North Coast Ranges, Marble Mountain 2438 Comment
  RSA78690  Arnica cernua Philip A. Munz 1952-7-2 17879 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1493 Comment
  UC1299272  Arnica cernua Freed W. Hoffman 1950-7-13 3547 Siskiyou Baldy Lookout North Coast Ranges, Baldy Lookout Comment
  CAS-BOT-BC82556  Arnica discoidea Ira L. Wiggins 1955-7-23 13465 Siskiyou ridge W of China Creek, S side of S Fork of Salmon River 1005 Comment
  SBBG7587  Arnica discoidea H. and M. Dearing 1939-6-19 3684 Siskiyou high up French Crk Comment
  POM30864  Arnica discoidea Geo. D. Butler 1910-6-4 1492 Siskiyou Shackleford Creek. Comment
  UC129423  Arnica latifolia Harley P. Chandler 1901-6-1 1699 Siskiyou Shackleford Canyon North Coast Ranges, Marble Mountain ((ridges and meadows near Marble Mountain)) 1828 Comment
  UCD77357  Arnica longifolia Robert E. Preston 2002-7-13 1922 Siskiyou Klamath National Forest, Trout Creek Meadow 1505 Comment
  CAS-BOT-BC82757  Arnica mollis Wm. Bridge Cooke 1938-9-8 11652 Siskiyou Squaw Creek Meadow, along Squaw Creek from the middle meadow to the lower meadow 2286 Comment
  UC1409284  Arnica mollis Frederick W. Oettinger and R. F. Thorne 1969-8-6 1251 Siskiyou below, along steep gorge, (high lake basins in vicinity of English Peak) Tom's Lower Pond; Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  UCD129170  Arnica mollis J. M. Tucker 1974-7-28 4322 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  CAS-BOT-BC90079  Arnica ovata John Thomas Howell 1939-8-8 15179 Siskiyou Black Mt., Marble Mts. Comment
  OBI55469  Arnica spathulata David J. Keil, Kathleen Keil 1992-7-21 23536 Siskiyou Klamath Natl Forest SE of Callahan. Forest Rd 40N08, 1.7 mi W of Scott Mountain rd (Hwy 3). Comment
  UC1475693  Arnica viscosa Muth and Overton 1979-8-12 13687 Siskiyou near Cliff Lake; Scott Bar Quad. 1951 Comment
  SEINET5712658  Artemisia campestris subsp. borealis J. M. Tucker, L. K. Mann; Sandra L. Holloway 1963-1 3750 Siskiyou Southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area.; Marble Mountain Wild. Area 2134 Comment
  CAS-BOT-BC447711  Aruncus dioicus var. vulgaris Edward Lee 1934-8-11 1031 Siskiyou Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 609 Comment
  RSA151826  Aruncus sylvester Francia Chisaki, H. K. Sharsmith 1959-8-20 4742 Siskiyou Salmon River between Forks of Salmon and Somes Bar. 305 Comment
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Aug 18 2015
  CAS-BOT-BC400705  Asarum hartwegii W. R. Dudley 1893-6-21 s.n. Siskiyou Near Sissons Comment
  SEINET5470288 Image available Asarum hartwegii George Neville Jones 1967-6-29 45503 Siskiyou Near Dunsmuir- lower slopes of Mt. Shasta- alt. 3000 Comment
  CDA39801  Asclepias cordifolia F. D. Horn 1977-5-22 s.n. Siskiyou North shore, Copco Lake, east of Hornbrook. 0 Comment
  SEINET999811  Asclepias fascicularis Mark Fishbein, Lane Greer 2006-1 5886 Siskiyou Along Hill Road, 0.5 mi south of Devil's Homestead, Lava Beds National Monument, about 3.75 mi north-northwest of Schonochin Butte. 1285 Comment
  UC164151  Asclepias fascicularis Geo. D. Butler 1910-6-29 1613 Siskiyou near Yreka Comment
  SEINET10913619  Asclepias speciosa K. Bridwell 1978-7-5 Bridwell 164 Siskiyou Along county dirt road between the Tablelands and Mahogany Ridge, ca 18 mi S of Klamath Falls, Ore., and 3 mi NE of Dorris, Calif. 1244 Comment
  HSC71077  Aspidotis densa M. A. Baker 1980-6-20 2198 Siskiyou Near Bald Mtn. 1036 Comment
  SEINET3868735  Aspidotis densa David B. Dunn, Conrad; LeDoux 1973-6-3 20652 Siskiyou Vicinity of the Campground on the Salmon River, 8.3 mi W of Cecilville.; 0 Comment
  UC1242059  Aspidotis densa Don Branscomb 1958-7-22 Siskiyou NE Siskiyou Co Comment
  UC1478239  Aspidotis densa Nancy Morin with J. Richards 1981-7-18 307 Siskiyou Little Castle Lake Comment
  UC1034654  Aspidotis densa Douglas Barbe 1955-7-26 260 Siskiyou nw slope Scott Mt; Klamath Mts 1828 Comment
  SEINET1783729  Aster copelandii E. B. Copeland 1903-9-7 3867 Siskiyou Mt. Eddy. 2744 Comment
  POM259366  Aster foliaceus var. parryi J. T. Howell 1939-8-2 14877 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  RSA417679  Aster integrifolius L. C. Wheeler 1934-8-14 3119 Siskiyou 1 mile west of White Mt., Siskiyou Mts. 1921 Comment
  RSA119374  Astragalus accidens var. hendersonii S. S. Tillett 1956-7-9 670 Siskiyou Along ridge running n. from NW side of Scott Mtn., between Big Carmen Creek and Mule Creek, Siskiyou-Trinity Cos. line, ca. 8 mi. SE of Callahan. 1951 Comment
  CAS-BOT-BC178809  Astragalus californicus R. C. Barneby 1954-5-16 11516 Siskiyou Klamath R. canyon 1/2 mi. below Hamburg 457 Comment
  RSA94040  Astragalus californicus R. C. Barneby 1954-5-16 11516 Siskiyou Klamath River canyon 1/2 miles below Hamburg. 457 Comment
  CAS-BOT-BC193068  Astragalus purshii var. tinctus Roxana S. Ferris; Laura Lorraine 1948-6-12 11710 -A Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], east fork of Scott River Comment
  SEINET5326835  Astragalus purshii var. tinctus G. Butler 1910-3-20 1134 Siskiyou dry hills near Yreka Comment
  JEPS81879  Astragalus whitneyi Roger Raiche 1982-7-4 20531 Siskiyou Mt. Eddy Comment
  UC862791  Astragalus whitneyi A. A. Heller 1916-7-22 12487 Siskiyou e side Mt. Eddy Comment
  CHSC837  Astragalus whitneyi var. siskiyouensis V. Holt 1932-6-26 Siskiyou Mt. Eddy. 1219 Comment
  CAS-BOT-BC198716  Astragalus whitneyi var. siskiyouensis Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Between turnoff to Picayne Lake and Mumbo summit, Trinity Mts. 1889 Comment
  HSC34420  Astragalus whitneyi var. siskiyouensis A. M. Montalvo, J. D. Ackerman 1974-7-2 342 Siskiyou Sacramento River drainage between Mt. Shasta and Mt. Eddy, along road to Deadfall Lakes and Morgan Meadows. 1524 Comment
  RSA0006883  Astragalus whitneyi var. siskiyouensis H. D. Ripley, R. C. Barneby 1954-5-7 11536 Siskiyou Scott Mts., 5 miles above Callahan. 1265 Comment
  RSA215617  Astragalus whitneyi var. siskiyouensis Gilbert Muth 1969-8-7 1258 Siskiyou Boulder Peak Ridge. 2470 Comment
  SEINET5335240  Astragalus whitneyi var. siskiyouensis B. Wilson 2011-7-31 16701 Siskiyou Shasta-Trinity National Forest, north of the Pacific Crest Trail on road 42N17, at a 90 degree bend, in the Park Creek drainage 2024 Comment
  JEPS97805  Athyrium distentifolium R. Raiche and S. Winchester 1988-7-24 80265 Siskiyou above Upper Cliff lake; S Fork Sacramento R., Cedar Lake area Comment
  UC399394  Athyrium distentifolium var. americanum C. G. Pringle Sept. 1882 Siskiyou Mt Shasta Comment
  RSA577337  Athyrium filix-femina subsp. cyclosorum L. C. Wheeler 1934-8-21 3190 Siskiyou Siskiyou Mountains, East Fork Horse Creek 1220 Comment
  CAS-BOT-BC66191  Athyrium filix-femina var. cyclosorum A. A. Heller 1920-8-11 13505 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  UC637172  Athyrium filix-femina var. cyclosorum Edward Lee 1934-8-13 1074 Siskiyou Happy Camp to Waldo (Oregon) Rd; Klamath Nat'l Forest, watershed West Branch Indian Creek 1371 Comment
  HSC4360  Atriplex rosea R. C. Wunner 1965-8-14 420 Siskiyou Lava Beds National Monument, Hovey Point. 1220 Comment
  SEINET516139  Atriplex rosea Vernon H. Oswald 1998-9-16 9652 Siskiyou Return leg of the Tour Route at Lower Klamath NWR ca. 2 mi south of Hwy. 161. 1244 Comment
  CAS-BOT-BC106545  Balsamorhiza deltoidea Geo. D. Butler 1909-5-1 702 Siskiyou Shasta River Hills Comment
  CAS-BOT-BC100061  Balsamorhiza lanata L. E. Smith 1913-4-22 86 Siskiyou Yreka Comment
  JEPS98753  Balsamorhiza lanata Julie Kierstead 1997-5-13 97001 Siskiyou 6 mi W of Weed (Parks Creek Road at junction with 42N19); Shasta-Trinity National Forests, Mt. Shasta Ranger District 1310 Comment
  CAS-BOT-BC16688  Barbarea orthoceras D. E. Breedlove 1962-6-11 3353 Siskiyou Marble Mountains. About 20 miles west of Fort Jones. Canyon Creek. 914 Comment
  HSC64094  Barbarea orthoceras J. P. Smith 1973-5-5 6490 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  UC642586  Barbarea orthoceras unknown 1939-6-23 13509 Siskiyou Bear Springs meadow; Mount Shasta Comment
  CDA40531  Barbarea vulgaris Michael Pitcairn 2014-4-3 s.n. Siskiyou On private farm off Holzhauser Road, east of Etna. Comment
  RSA264996  Barbarea vulgaris Gilbert Muth 1975-7-30 9961 Siskiyou Near Red Butte; near Seiad Valley. 1854 Comment
  UC718153  Berberis aquifolium var. aquifolium Carl B. Wolf 1934-7-5 5973 Siskiyou 7 mi from Oak Knoll Ranger Station (on Klamath River, on rd to Dry Lake Lookout); Siskiyou Mts 1371 Comment
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Mar 29 2012
  HSC58851  Berberis nervosa Marvin Butler 1971-7-30 248 Siskiyou Near Bell Echo Camp, close to the town of Cave Junction 1433 Comment
  JEPS86077  Berberis nervosa Wayne Roderick 1966-6-26 Siskiyou Cook and Green Pass area 1371 Comment
  CAS-BOT-BC75917  Berberis piperiana Doris K. Kildale 1928-8-18 6428 Siskiyou North Fork Salmon River at Finley Camp. Comment
  CAS-BOT-BC75937  Berberis piperiana C. Hart Merriam 1919-10-12 s.n. Siskiyou Scott Valley (near Etna). Comment
  CAS-BOT-BC75997  Berberis pumila Laura M. Lathrop 1903-7-16 s.n. Siskiyou Shasta Retreat. Comment
  HSC100791  Berula erecta Lowell Ahart, John Dittes 2010-7-30 16934 Siskiyou Along the W edge of the Shasta river, ~30 yd. NW of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 (air) mi. SW of Big Springs Lake, 4.6 (air) mi. NW of Dwinnel Dam, and 5.7 (air) mi. SE of Grenada. 717 Comment
  UCR30556  Bidens frondosa John C. Roos 1948-9-1 3942 Siskiyou Marsham Stream at Yreka Comment
  HSC2224  Blepharipappus scaber L. C. Wheeler 1935-6-9 3553 Siskiyou Siskyou Mtns.; Yreka Creek 1220 Comment
  HSC5207  Blepharipappus scaber Duncan Dunning 1922-6-5 Siskiyou Moffett Creek, NW of Fort James Comment
  UCD129460  Blepharipappus scaber Robert E. Preston 1995-6-18 884 Siskiyou Irongate Reservoir, CA. 0.6 miles NNW of dam at roadside. 731 Comment
  SEINET197954  Boechera breweri T. Howell 1884-6-17 Siskiyou Siskiyou Mts. Comment
  SEINET3132245  Boechera breweri subsp. shastaensis G. D. Butler 1910-5-21 1379 Siskiyou Klamath River. Comment
  CAS-BOT-BC16239  Boechera divaricarpa John Thomas Howell 1937-7-21 13205 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  UC1408898  Boechera divaricarpa Frederick W. Oettinger 1969-7-11 974 Siskiyou bank of Hancock Lake, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area, English P 1935 Comment
  CAS-BOT-BC13812  Boechera howellii John Thomas Howell 1937-7-26 13539 Siskiyou Caribou Mountain. 2438 Comment
  CAS-BOT-BC14111  Boechera pauciflora A. A. Heller 1905-6-20 8083 Siskiyou Between Igerna and Weed. Collected near the railraod a short distance south of Weed, not many miles from Yreka. Comment
  CAS-BOT-BC14411  Boechera platysperma R. E. Frenkel 1964-10-2 921 Siskiyou In Panther Meadow Campground near Mount Shasta. 2377 Comment
  CAS-BOT-BC25415  Boechera retrofracta George Dexter Butler 1910-6-5 1505 Siskiyou Shackleford Creek. Comment
  CAS-BOT-BC25610  Boechera retrofracta John Thomas Howell 1937-7-24 13378 Siskiyou Salmon - Trinity Alps. Caribou Basin. 2286 Comment
  JEPS53079  Boechera retrofracta Harley P. Chandler Jun 1901 1663 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  UC166107  Boechera retrofracta Geo. D. Butler 1909-4-18 728 Siskiyou near Yreka Comment
  SEINET3132274  Boechera retrofracta G. D. Butler 1163 Siskiyou Dryland, Loy Lake, Shackleford Creek. 1219 Comment
  UC1045263  Boechera sparsiflora Reed Rollins 1940-7-26 15365 Siskiyou Diller Canyon Mount Shasta 1828 Comment
  CHSC464  Boechera subpinnatifida E. England 1939-7-16 Siskiyou Mt. Eddy. Comment
  CHSC30252  Boschniakia strobilacea M. S. Taylor; B. Williams 1980-6-23 2944 Siskiyou N side in the forest of Cedar Lake, ca. 11 mi sw of Mt. Shasta City. 1737 Comment
  CAS-BOT-BC418463  Boykinia major Alice Eastwood; John Thomas Howell 1937-6-26 5066 Siskiyou Near Forks of Salmon Comment
  SBBG25884  Boykinia major D. Myrick 1966-8-10 1518 Siskiyou Salmon Crk at Mtn Meadow Ranch, Big Flat 1676 Comment
  UCD102599  Boykinia major John M. Tucker; D. V. Hemphill 1974-7-28 4332 Siskiyou 1 mile south of Haypress Meadows, between trail to Camp 4, Marble Mountain Wilderness Area. 1463 Comment
  CDA30921  Brickellia californica M. Beyers, G. F. Hrusa 2010-8-18 700 Siskiyou Highway 96; Sluice Box Klamath River Access. 556 Comment
  CAS-BOT-BC127861  Brickellia grandiflora John Thomas Howell 1939-8-4 15044 Siskiyou Marble Rim. Marble Mts. Comment
  UC894186  Brickellia grandiflora Alice Eastwood 1912-7-26 1459 Siskiyou Pitt to Kennet Sisson Comment
  CHSC63594  Brickellia greenei Vernon H. Oswald; Lowell Ahart 1994-8-1 6417 A Siskiyou Forest Rd. 26 paralleling the South Fork of the Sacramento River, 1.5 mi E of Forest Rd. 40N43, 7.8 mi SW of the dam at Lake Siskiyou. 1341 Comment
  NY162750  Brickellia greenei E. L. Greene 1870-8-24 1012 Siskiyou On South Fork of Scott River Comment
  SEINET8401322  Brodiaea elegans L. E. Detling 1959-6-8 8225 Siskiyou Scott River near Scott Bar. 579 Comment
  JEPS74567  Bromus carinatus var. carinatus W. J. Ferlatte 1966-6-23 138 Siskiyou Trinity Alps, along the Yellow Rose Mine Trail Yellow Rose Mine Trail; Trinity Alps, Yellow Rose Mine Trail 1676 Comment
  UC70745  Bromus carinatus var. carinatus T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou in the Scott River Valley Scott River Valley Comment
  HSC65377  Bromus hordeaceus J. P. Smith 1973-5-5 6555 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC162131  Bromus orcuttianus L. E. Smith 1914-7-6 747 Siskiyou Sisson. Comment
  HSC67810  Bromus orcuttianus J. O. Sawyer, J. Cole 1980-7-22 3958 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  RSA239078  Bromus orcuttianus Frederick W. Oettinger 1969-8-3 1140 Siskiyou Above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  POM364041  Bromus suksdorfii M. B. Dunkle 1945-1 9326 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  CAS-BOT-BC185592  Bromus tectorum Geo. D. Butler 1909-5-21 816 Siskiyou Roadside near Yreka. Comment
  CAS-BOT-BC185604  Bromus tectorum A. A. Heller 1916-6-20 12405 Siskiyou Metcalf's Ranch, northeast base of Mount Eddy. 1188 Comment
  HSC36759  Bromus tectorum J. P. Smith 1974-5-25 7408 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC164920  Bromus tectorum George D. Butler 1909-8-16 860 Siskiyou near Yreka Comment
  HSC101479  Bromus vulgaris J. P. Smith, J. O. Sawyer 2011-7-21 13038 Siskiyou Near Dillon Camp 1358 Comment
  HSC30655  Calamagrostis canadensis var. langsdorffii Frederick W. Oettinger, R. F. Thorne 1969-8-4 1184 Siskiyou Marble Mtn. Wilderness Area, on moraine N of Tobacco Lake 1890 Comment
  CAS-BOT-BC185266  Calamagrostis koelerioides John Thomas Howell 1937-7-25 13451 Siskiyou Caribou Basin, Salmon Trinity Alps. 2286 Comment
  HSC27333  Calamagrostis koelerioides J. P. Smith, J. O. Sawyer, M. O'Mera 1972-7-3 5711 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  UC1265435  Calamagrostis koelerioides F. W. Oettinger 1969-9-3 683 Siskiyou slope w Horse Range Lake (nw of Horse's Hole Pond); Salmon Mountains 1920 Comment
  HSC65409  Callitropsis nootkatensis Rich White 1978-7-3 204 Siskiyou Saddle in Spur Ridge between Dillon Trail and 5759 1662 Comment
  CAS-BOT-BC85726  Calocedrus decurrens Carl B. Wolf 1927-8-26 1059 Siskiyou On the Klamath River, 3 mi. below Gottville Comment
  HSC77046  Calochortus coeruleus K. T. Stillman 1976-6-25 31 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  JEPS17831  Calochortus coeruleus Joseph P. Tracy 1935-4-4 14524 Siskiyou 5 mi e Mary Blaine Mt. (Snow Prairie at summit of ridge, extreme head of Plummer Creek); Snow Prairie, Plummer Creek 1859 Comment
  UC54189  Calochortus coeruleus H. M. Hall and E. B. Babcock Jun 1903 4033 Siskiyou Dunsmuir Upper Sacramento Valley 609 Comment
  SEINET10872529  Calochortus coeruleus var. fimbriatus Mary Susan Taylor 1980-7-8 Taylor 3109 Siskiyou T39N R5W nw sec 19, Dunsmuir quad; Shasta-Trinity Natl Forest; on trail, E side of Castle Lake to Little Castle Lake. 1768 Comment
  UCD139507  Calochortus elegans Nancy J. Hull 1974-5-27 136 Siskiyou Sugar Creek Road by Sugar Creek Dam, west of Scott Valley. Comment
  CAS-BOT-BC488617  Calochortus elegans var. nanus Elmer I. Applegate 1895-5-28 725 Siskiyou Sisson Comment
  CDA39290  Calochortus elegans var. nanus T. R. Haig & F. D. Horn 1978-5-31 s.n. Siskiyou Site of Deadwood Lookout, Fort Jones. 0 Comment
  CHSC71511  Calochortus macrocarpus Vernon H. Oswald; Lowell Ahart 1998-7-21 9321 Siskiyou Hwy. 97 at the 11.0 mi mile marker 1.2 mi west of A12 northeast of Weed. 1188 Comment
  SEINET8263376  Calochortus nudus Frank Callahan 1994-8-15 Siskiyou SE of Bartle both sides of Hwy 89. 1494 Comment
  SEINET8214323  Calochortus persistens Frank T. Callahan 1972-7-15 Siskiyou Gunsight Peak, Mahogany Pt; west of Yreka, California. 1896 Comment
  UC1094390  Caltha biflora Rimo C. Bacigalupi with Galen Smith 1957-6-26 5955 Siskiyou Gumboot Lake, head of the South Fork of Sacramento River ca. 6 miles due south of Mt. Eddy. 1859 Comment
  UC922381  Caltha biflora Annie M. Alexander and Louise Kellogg 1949-7-28 5879 Siskiyou Sky High Valley; Marble Mountains. 1767 Comment
  CAS-BOT-BC181511  Caltha leptosepala Harley P. Chandler 1901-6-1 1571 Siskiyou Ridges and meadows near Marble Mountain 1828 Comment
  RSA0120952  Caltha leptosepala James P. Smith 1974-5-26 7538 Siskiyou Chandler Glade on Forest Service Road 47N03. 1768 Comment
  JEPS81793  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
  UCR51762  Calycadenia truncata subsp. scabrella L. C. Wheeler 1934-6-26 2787 Siskiyou Siskiyou Mtns., Camp Lowe, Klamath River 765 Comment
  CAS-BOT-BC272743  Calycadenia truncata subsp. truncata Geo. D. Butler 1908-8-29 320 Siskiyou E. of Oro Fino Comment
  CHSC4526  Calyptridium umbellatum J. E. Bowlin 1967-7-18 63 Siskiyou On roadside, on the side of a bank. Ca. 1.5 mi w of Mount Shasta Ski Bowl. 2286 Comment
  HSC77017  Calyptridium umbellatum K. T. Stillman 1976-6-25 36 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  RSA699533  Camassia quamash subsp. breviflora Jenny Marr 1993-07 137 Siskiyou Butte Valley Wildlife Area, ~7 air miles NW of the town of MacDoel. 1350 Comment
  CAS-BOT-BC497587  Camassia quamash subsp. breviflora D. E. Breedlove 1962-6-11 3372 Siskiyou Along State Highway 89, 17.6 miles east of McCloud; Cascade Mountains 1219 Comment
  CDA3579  Camelina microcarpa T. C. Fuller 1958-6-18 1807 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  CDA3582  Camelina microcarpa T. C. Fuller 1962-6-11 8959 Siskiyou East side of Hwy 99 to Black Butte Summit, 4.1 miles south of Weed. 0 Comment
  UC1045293  Camelina microcarpa Reed Rollins 1940-6-7 15094 Siskiyou along the Pacific Highway near Black Butte; Pacific Highway 1219 Comment
  CAS-BOT-BC160898  Camissonia tanacetifolia subsp. tanacetifolia L. E. Smith 1915-7-1 s.n. Siskiyou Bray Comment
  RSA186494  Camissonia tanacetifolia subsp. tanacetifolia Peter H. Raven 1962-5-30 17898 Siskiyou U.S. Highway 97, 4.4 miles south of Dorris Comment
  SEINET10462932  Campanula prenanthoides Clifton 1979-4-28 CLIFTON 3466 Siskiyou NR SCOTT R., SEIAD V. QUAD. NR SCOTT BAR 1601', Comment
  SEINET10972062  Campanula prenanthoides James P. Smith, Steven B. Selva 1970-7-16 Smith, Jr. 4396 Siskiyou BLUE MOUNTAIN DOUGLAS-FIR FOREST. T46N R12W SEC. 35 Comment
  SEINET10972403  Campanula prenanthoides Kildale 1928-7-22 KILDALE 5776 Siskiyou Klamath River near mouth Comment
  UC70377  Campanula rotundifolia Milo S. Baker 1899-7-31 Siskiyou E slope of Mt Shasta, on Ash Creek Comment
  CAS-BOT-BC266452  Campanula scabrella Arthur Menzies 1962-6-21 s.n. Siskiyou Mount Eddy 2529 Comment
  SEINET10463386  Campanula scabrella Muth 1978-8-2 MUTH 6762 Siskiyou Near South China Mountain, on the China Mountain quadrangle, close to the town of Callahan 2348 Comment
  SEINET10972070  Campanula scabrella George Engelmann 1880-8-30 Engelmann s.n. Siskiyou SCOTTS MOUNTAIN UNDER PINUS ALBICAULIS & P. BALFOURIANA 2134 Comment
  SEINET10463570  Campanula scouleri Clifton 1975-7-29 CLIFTON s.n. Siskiyou STREAMSIDE, NR. COPPER BUTTE, SEIAD V. QUAD. NR SEIAD V. 1414 Comment
  UC890575  Campanula scouleri Alice Eastwood 1912-7-21 1283 Siskiyou Sisson Comment
  SEINET10463678  Campanula scouleri Brown 1897-6-11 Brown 398 Siskiyou N. SIDE MT. SHASTA 1524 Comment
  CAS-BOT-BC266460  Campanula wilkinsiana Alice Eastwood 1912-9-1 2063 Siskiyou Mount Shasta Comment
  CHSC29295  Campanula wilkinsiana J. D. Prouty 1979-8-14 79 .40 Siskiyou Creekside, Cold Creek, e slope of Mt. Shasta. 1889 Comment
  HSC687  Campanula wilkinsiana William J. Ferlatte 1967-8-22 1099 Siskiyou Head of Kidd Creek. 2134 Comment
  RSA211342  Campanula wilkinsiana William J. Ferlatte 1967-8-22 1099 Siskiyou Head of Kidd Creek. 2134 Comment
  UCD66988  Campanula wilkinsiana Joseph DiTomaso 1980-8-21 1893 Siskiyou Kidd Creek Meadows, Trinity Alps Primitive Area. 2042 Comment
  SEINET10463874  Campanula wilkinsiana Groves 1944-8-28 GROVES s.n. Siskiyou Panther Meadows, Mt. Shasta. Comment
  UC631649  Campanula wilkinsiana M. D'Evelyn 1931-8-10 Siskiyou creek bed near Red Cap; Mount Shasta 2438 Comment
  CAS-BOT-BC263278  Cardamine R. C. Wenk 2005-6-17 166 Siskiyou Trinity Alps, South Fork of the Salmon River, near Big Flat Campground at the southern end of Big Flat Meadow 1517 Comment
  POM82013  Carex aquatilis Geo D. Butler 1910-5-21 1377 Siskiyou Locality unsure? Klamath River Comment
  CHSC40199  Carex aquatilis var. dives L. P. Janeway 1983-8-28 636 Siskiyou At Poker Flat. 1524 Comment
  HSC76375  Carex aquatilis var. dives L. P. Janeway 1982-7-2 36 Siskiyou Poker Flat, end of FS Rd. 18N33 1524 Comment
  UCD140122  Carex atherodes Peter F. Zika 2010-7-21 25197 Siskiyou Grass Lake. On north side of Route 97, 0.4 road miles ENE of Grass Lake Rest Area. 1540 Comment
  CAS-BOT-BC18131  Carex athrostachya John Thomas Howell 1939-8-8 15139 Siskiyou Marble Mountains. Between Sky High Valley and Marble Valley. Comment
  UC827030  Carex bolanderi John Thomas Howell 1939-8-3 14989 Siskiyou Spirit Lake Marble Mountains 1828 Comment
  RSA237237  Carex brainerdii Frederick W. Oettinger 1969-8-3 1146 Siskiyou Hot slope above English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC86451  Carex breweri D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 2591 Comment
  UCD77480  Carex breweri Robert E. Preston 2001-6-23 1593 a Siskiyou Klamath National Forest, e ridge of Rainbow Mtn, T42N R1W se 1/4 of nw 1/4 Section 23 2072 Comment
  SEINET10856290  Carex breweri Thorne 1969-8-10 THORNE 38982 Siskiyou Mount Shasta National Forest: south slope of Mount Shasta; at base of boulders on dry, sunny volcanic slopes above ski-logde. 2377 Comment
  HSC48951  Carex concinnoides M. A. Baker 1979-5-17 728 Siskiyou S facing hillside near road to Bald Mtn. trail off FS 15N01 Comment
  CAS-BOT-BC19872  Carex echinata subsp. echinata Louis C. Wheeler 1935-7-26 3721 Siskiyou Siskiyou Mountains. Jaynes Canyon. 1950 Comment
  CAS-BOT-BC19918  Carex epapillosa A. A. Heller 1922-7-15 13709 Siskiyou Meadow at Medicine Lake. 2133 Comment
  HSC76838  Carex exsiccata L. P. Janeway 1982-6-25 22 Siskiyou 300 m. SE of No Mans Creek, 600 m. up Creek from the Clear Creek Rd. 610 Comment
  RSA237276  Carex fracta Frederick W. Oettinger 1969-8-16 1393 Siskiyou SW of Wiregrass Meadow below English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  JEPS105060  Carex gigas Dean W. Taylor 1996-7-11 15777 Siskiyou Scott Mountains; West Park Lakes (about 15 air miles west of Weed); Shasta-Trinity National Forest 2194 Comment
  HSC82003  Carex gracilior Thomas W. Nelson, Jane P. Nelson 1979-6-16 4849 Siskiyou Along Hwy. 3, 2.7 mi. N of Scott Mtn. Summit 1341 Comment
  CAS-BOT-BC20469  Carex halliana Alice Eastwood 1921-7-28 10943 Siskiyou Medicine Lake. Comment
  UC1586943  Carex halliana Juha Pykala and D. H. Norris 1987-7-8 2432 Siskiyou s and w sides of lake, between lake and road Little Medicine Lake 2040 Comment
  CHSC115856  Carex hassei P. F. Zika; Barbara Wilson 2011-7-31 25668 Siskiyou FS Road 41N03, 1.6 road miles from junction with Gazelle-Callahan Road, 1.5 air miles NE of Mountain House, 3.5 air miles NW of Crater Lake, Scott Mountains, Klamath Range 1600 Comment
  HSC30215  Carex hassei William J. Ferlatte 1968-6-8 1130 Siskiyou Big Flat, wooded area near public camp 1524 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
  SEINET12649458 Image available Carex hassei Peter F. Zika, Barbara Wilson 2011-1 25675 Siskiyou 1700 Comment
  CAS-BOT-BC22295  Carex hassei W. R. Dudley 1893-6-21 s.n. Siskiyou Peter Klinks Meadow. Sisson. Comment
  CAS-BOT-BC7660  Carex integra W. J. Ferlatte 1966-6-23 124 Siskiyou Yellow Rose Mine. 1981 Comment
  JEPS63703  Carex jonesii B. C. Goldsmith 1916-10-10 37 Siskiyou Widow Creek Mt. Shasta, Widow Creek Comment
  RSA783707  Carex klamathensis Barbara L. Wilson, Richard E. Brainerd 2010-8-10 16313 Siskiyou Klamath National Forest: along road 41N03, 1.5 mi from road 2H001. 1591 Comment
  HSC76813  Carex laeviculmis L. P. Janeway 1982-6-25 23 Siskiyou 300 m. SE of No Mans Creek, 600 m. up Creek from the Clear Creek Rd. 610 Comment
  CAS-BOT-BC31437  Carex leporinella John Thomas Howell 1939-8-8 15155 Siskiyou Black Mt. Marble Mts. Comment
  SEINET7566357 Image available Carex luzulina Ray Tallent 1987-8-12 907 Siskiyou Klamath National Forest, Long Gulch Lake. 1939 Comment
  RSA756494  Carex luzulina var. ablata Barbara Ertter 1990-7-16 9378 Siskiyou NW side of Mount Eddy, 8 air miles SW of Weed, 1-2 miles from Parks Creek trailhead (=crest of Rt 17) along ridge 2287 Comment
  UC1265319  Carex luzulina var. ablata Frederick W. Oettinger 1969-8-22 1504 Siskiyou S side of Horses Hole Horse Range Lake (high lake basins in the vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  CAS-BOT-BC31621  Carex luzulina var. luzulina John Thomas Howell 1937-7-23 13332 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  HSC76312  Carex mertensii L. P. Janeway 1982-8-15 145 Siskiyou Below Echo Lake 1646 Comment
  CAS-BOT-BC32001  Carex multicaulis John Thomas Howell 1937-7-26 13556 Siskiyou Caribou Gulch Comment
  CHSC109970  Carex multicaulis Peter F. Zika; Julie Nelson 2012-6-21 25903 Siskiyou South Fork Willow Creek, 8.4 air km NE of Gazelle Mountain, Shasta-Trinity National Forest. Klamath Range (KR). 1145 Comment
  CDA33113  Carex multicaulis T. C. Fuller 1962-6-11 8963 Siskiyou East side of Hwy 99 to Black Butte Summit, 4.1 miles south of Weed. 0 Comment
  HSC100085  Carex nardina Dana York 2011-8-13 3059 Siskiyou Klamath National Forest, Slopes of Black Mountain. 2105 Comment
  CAS-BOT-BC119897  Carex nebrascensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11818 Siskiyou East fork of Scott River drainage, Parker Ranch, Plowman's (Noyes) Valley 1203 Comment
  UC196159  Carex nebrascensis Geo. D. Butler 1909-6-13 858 Siskiyou Oro Fino Comment
  HSC77270  Carex nebrascensis L. P. Janeway 1983-7-2 354 Siskiyou NW side of Klamath River and below Happy Camp 335 Comment
  RSA233692  Carex nigricans Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38950 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  SEINET7569430 Image available Carex nudata John Thomas Howell, T. C. Fuller, G. D. Barbe 1980-5-20 53559 Siskiyou East Fork Scott River 2 miles east of Callahan on road to Gazelle. 1006 Comment
  CAS-BOT-BC118931  Carex pellita John Thomas Howell 1937-7-23 13333 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  HSC285  Carex phaeocephala William J. Ferlatte 1967-8-21 1077 Siskiyou Caribou Basin, Sawtooth ridge W of Big Caribou Lake 2134 Comment
  SEINET10817769  Carex praegracilis George D. Butler 1910-4-19 Butler 1202 Siskiyou Damp gully near Yreka. Comment
  HSC71108  Carex scabriuscula Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4500 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC76827  Carex scabriuscula L. P. Janeway 1982-8-14 137 Siskiyou Just E of Elk Wallow 1646 Comment
  HSC82383  Carex scabriuscula Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4544 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  JEPS121653  Carex scabriuscula Kendra Sikes 2011-9-14 Siskiyou Sundew Fen, Caldwell Lakes Basin, headwaters of Park Creek, east slope of China Mountain. Shallow pond, over gabbro. China Mountain quadrangle. CLS_1D Comment
  HSC39278  Carex scopulorum J. O. Sawyer 1968-7-22 553 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  CAS-BOT-BC117257  Carex spectabilis John Thomas Howell 1939-8-9 15232 Siskiyou Ridge South of Marble Valley, Marble Mts. Comment
  HSC39291  Carex spectabilis J. O. Sawyer 1969-8-4 1828 Siskiyou Above Sugar Lake 2134 Comment
  JEPS25939  Carex spectabilis B. C. Goldsmith 1916-9-29 28 a Siskiyou Medicine Lake Comment
  JEPS84069  Carex spectabilis L. R. Heckard with J. Hickman et al. 1986-7-17 6527 Siskiyou above and s Alex Hole (n of Hwy. 96); Buckhorn Campground Comment
  HSC30553  Carex spectabilis Frederick W. Oettinger 1969-9-2 1603 Siskiyou Marble Mtn. Wilderness Area, in Bear Meadow near Tom Taylor Cabin 2165 Comment
  SEINET7575749 Image available Carex spectabilis Frederick W. Oettinger 1968-9-6 732 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness area, trail southeast of Tom's Lake. 2012 Comment
  CAS-BOT-BC117343  Carex stipata A. A. Heller 1925-7-13 13879 Siskiyou State Teachers ground near the town of Mt. Shasta. Comment
  RSA105479  Carex stipata G. D. Barbe 1955-6-29 29 Siskiyou 1 mile east of Callahan 976 Comment
  UC195511  Carex subfusca Geo. D. Butler 1910-6-5 1476 Siskiyou Shackleford Creek Comment
  UC835109  Carex utriculata John Thomas Howell 1939-8-9 15197 Siskiyou Sky High Valley Marble Mts. 1828 Comment
  JEPS121616  Carex utriculata Danielle Roach 2011-9-13 Siskiyou Bogbean Fen, Caldwell Lakes Basin, headwaters of Parks Creek, east slope of China Mountain. Abundant in flat fen, over gabbro. China Mountain quadrangle. CLB_A Comment
  JEPS109253  Carex whitneyi D. W. Taylor 2005-7-12 19382 Siskiyou Antelope Creek, along unnamed tributary that drians from Rainbow Mountain, just upstream from the crossing of Forest road 42N16. Comment
  POM253596  Cassiope mertensiana subsp. ciliolata C. L. Hitchcock, J. S. Martin, A. S. Hitchcock 1939-7-11 5395 Siskiyou South shore of Upper Canyon Creek Lake, 11 mi. north of Dedrick, Salmon-Trinity Mts. 2439 Comment
  JEPS83016  Castilleja angustifolia L. R. Heckard 1984-5-15 6159 Siskiyou w of Mt. Shasta (along U.S. Hwy 97, about 7 mi n of junction with Interstate Route 5 in Weed) 1066 Comment
  HSC668  Castilleja applegatei William J. Ferlatte 1967-7-9 684 Siskiyou Kidd Creek Trail 1829 Comment
  HSC19229  Castilleja applegatei subsp. pinetorum J. O. Sawyer 1969-8-4 1871 Siskiyou Slopes W of S Sugar Lake 2165 Comment
  HSC42879  Castilleja applegatei subsp. pinetorum John Sawyer, Ken Stillman 1976-7-1 2794 Siskiyou Mid slopes and ridges E of Little North Fork Trail. 732 Comment
  HSC77352  Castilleja applegatei subsp. pinetorum L. P. Janeway 1983-8-7 518 Siskiyou Near end of Rd. 17N32 (the S Fork Indian Cr. Rd.), 19 mi. from the Indian Creek Rd. 1555 Comment
  JEPS83995  Castilleja applegatei subsp. pinetorum L. R. Heckard 1986-7-16 6406 Siskiyou ca 5 mi n town of Seiad Valley (cirque at head of Hell's Canyon); Hell's Canyon 1750 Comment
  RSA296405  Castilleja applegatei subsp. pinetorum Lincoln Constance, R. C. Bacigalupi, Joseph P. Tracy 1951-6-16 3452 Siskiyou Along trail ascending Little Grayback from the summit of the Takilma-Happy Camp road. Siskiyou-Del Norte Co. boundary. 1707 Comment
  RSA31873  Castilleja applegatei subsp. pinetorum A. A. Heller 1940-7-25 15766 Siskiyou Along the trail to Horse Camp, Mt. Shasta. 2287 Comment
  CAS-BOT-BC243765  Castilleja applegatei var. pinetorum Elmer I. Applegate 1935-8-3 10016 Siskiyou North slope of Caldwell Butte, Lava Beds National Monument Comment
  CHSC1701  Castilleja arachnoidea K. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. 2316 Comment
  JEPS23283  Castilleja arachnoidea Rimo Bacigalupi with Dr. Lincoln Constance 1959-6-16 7152 Siskiyou just e Mt. Shasta Ski Bowl Lodge (fields above Panther Meadow, sw slopes of Mt. Shasta); Mt. Shasta 2346 Comment
  JEPS76187  Castilleja arachnoidea T. I. Chuang with Fei-Mei Chuang 1977-7-22 7635 Siskiyou 0.75 mi from Deadfall Meadow to Deadfall Lake; Mt. Eddy 2042 Comment
  JEPS84015  Castilleja arachnoidea L. R. Heckard with J. Hickman et al. 1986-7-17 6493 Siskiyou ca 14.5 mi from Hwy 96 (Walker) (Oak Knoll Ranger Station road to Condrey Mt., near Dry Lake); road to Condry Mt., near Dry Lake 1950 Comment
  RSA211406  Castilleja arachnoidea William J. Ferlatte 1967-8-20 1040 Siskiyou Caribou Mountain. 2470 Comment
  POM266841  Castilleja arachnoidea subsp. shastensis Marion Ownbey, Fred G. Meyer 1940-7-5 2180 Siskiyou Well below timberline on east side of Mt. Shasta. Comment
  RSA104156  Castilleja linariifolia Elmer I. Applegate 1923-8-17 3829 Siskiyou Laird's Ranch, south end of Lower Klamath Lake. Comment
  CAS-BOT-BC254005  Castilleja miniata J. H. Thomas; H. A. Thomas 1954-7-25 4533 Siskiyou Salmon-Trinity Mts. Vicinity of Rush lake and Rush Creek meadow. About 9 miles E of Cecilville. 1981 Comment
  HSC69304  Castilleja miniata Maralyn A. Renner 1980-7-24 1985 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  JEPS23774  Castilleja miniata Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6889 Siskiyou Poker Flat; Siskiyou Mountains 1536 Comment
  SEINET3159266  Castilleja miniata G. D. Butler 1910-7-9 1692 Siskiyou Shackleford Creek 1219 Comment
  UC1012499  Castilleja miniata Francis W. Pennell 1940-7-17 26173 Siskiyou w of Etna; Salmon Mountains 1859 Comment
  UC103511  Castilleja miniata J. W. Congdon 1900-8-13 Siskiyou base Mt. Shasta Comment
  CAS-BOT-BC253616  Castilleja miniata Edmonds 1890-7-6 s.n. Siskiyou unspecified Comment
  CAS-BOT-BC254111  Castilleja miniata Wm. Bridge Cooke 1938-7-15 11191 Siskiyou Mt. Shasta. Meadow 1524 Comment
  CAS-BOT-BC26229  Castilleja pratensis A. A. Heller 1905-6-20 8079 Siskiyou Gazelle Station Comment
  CHSC35560  Castilleja pruinosa James Payne Smith Jr. 1976-5-4 8668 Siskiyou State Route 263, near its junction with State Route 96. 670 Comment
  JEPS60246  Castilleja pruinosa L. R. Heckard with L. Constance and R. Ornduff 1969-6-25 2311 Siskiyou nw edge Weed Comment
  RSA261373  Castilleja schizotricha J. M. Tucker, L. K. Mann 1963-8-18 3766 Siskiyou Saddle between Marble Mountain and SW ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area 2104 Comment
  CAS-BOT-BC47942  Ceanothus O. V. Matthews 1939-7-7 13 Siskiyou From west side of Mohawk Mine-frog Pond Trail 1219 Comment
  CAS-BOT-BC48658  Ceanothus cordulatus John Thomas Howell 1937-7-21 13189 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UC61166  Ceanothus cordulatus W. A. Setchell, C. C. Dobie 1902-7-13 Siskiyou Sisson Mt. Shasta Comment
  RSA256607  Ceanothus cuneatus J. P. Smith 1974-5-25 7398 Siskiyou Along road 8, 0.9 miles from its jct with State Route 3. 976 Comment
  UC375369  Ceanothus cuneatus var. cuneatus Geo. D. Butler 1909-5-29 770 Siskiyou near Yreka Comment
  JEPS24612  Ceanothus integerrimus Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6765 Siskiyou along S.P. (Shasta Route) (rr grade in upper Sacramento River Canyon, in 1.5 mi stretch betw Shasta Retreat (at n outskirts of Dunsmuir) to Mossbrae Falls and Shasta Springs) 731 Comment
  JEPS42428  Ceanothus integerrimus W. L. Jepson 1914-8-14 6170 Siskiyou Dunsmuir 670 Comment
  CAS-BOT-BC50243  Ceanothus integerrimus J. Cromwell; A. Thoele; J. Schneider 1994-5-16 077 Siskiyou 5 mi. W of Seiad Valley on Hwy 96 390 Comment
  CAS-BOT-BC53099  Ceanothus prostratus Elmer I. Applegate 1935-6-8 9422 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  JEPS42258  Ceanothus prostratus Willis L. Jepson July 1894 14381 Siskiyou near Sisson (Upton); Upper Sacramento River Comment
  SJSU6488  Ceanothus prostratus R. W. Trivelpiece 1972-6-9 103 Siskiyou c. 4 mi E of Grass L 1524 Comment
  UC375366  Ceanothus prostratus Geo. D. Butler 1909-4-24 589 Siskiyou Greenhorn Road Comment
  JEPS89111  Ceanothus tomentosus L. N. Lorenzen 1920-6-9 Siskiyou Sisson 1127 Comment
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May 9 2008
  HSC19307  Ceanothus velutinus J. O. Sawyer 1968-9-9 650 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  RSA120637  Ceanothus velutinus G. D. Barbe 1955-8-1 320 Siskiyou SE of Craggy lookout on Mt Bolivar. 2195 Comment
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Mar 6 2013
  UC144560  Ceanothus velutinus A. A. Heller 1905-6-16 8046 Siskiyou near Sisson; near Sisson Comment
  UCR93372  Ceanothus velutinus Kathy Harper, Dane Karr 1994-6-16 s.n. Siskiyou Modoc National Forest; Forest Route 49 (Lava Beds/ Medicine Lake Rd.) within 1 mi. of southern boundary of Lava Beds National Monument 1555 Comment
  SEINET5339428  Ceanothus velutinus G. Butler 1910-6-5 1480 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC52801  Ceanothus velutinus var. velutinus G. P. Rixford s.n. Siskiyou South side of Shaft-Rock Mt. - Hilt Comment
  CAS-BOT-BC52839  Ceanothus velutinus var. velutinus Gilbert Muth 1965-7-30 s.n. Siskiyou Marble Valley and Marble Rim Comment
  HSC36701  Ceanothus velutinus var. velutinus Brent Whitely 1975-7-3 129 Siskiyou 1220 Comment
  UCSC000741  Centaurea cyanus T. H. Gilbert June-July 1899 s.n. Siskiyou Scott River Valley Comment
  CAS-BOT-BC276997  Centaurea diffusa T. C. Fuller 1967-8-15 16262 Siskiyou W. side of Hwy 97 to Weed, 3 mi. s. of Macdoel, Butte Valley Comment
  RSA190721  Centaurea maculosa T. C. Fuller 1967-8-15 16261 Siskiyou West side of Hwy. 97 to Weed, 3 miles south of Macdoel, Butte Valley Comment
  NY444414  Centaurea solstitialis M. L. Conrad 1973-6-1 6970 Siskiyou At the north edeg of Hornbrook 731.5 Comment
  UCR242095  Centaurea solstitialis Steve B. Orloff 2011-1 SQK 472276 S1-D Siskiyou property along the Klamath River 213 Comment
  CAS-BOT-BC106030  Centaurea virgata subsp. squarrosa T. C. Fuller 1969-7-1 18618 Siskiyou Farmed areas and waste ground, 200 aggregate acres over 400 gross acres, Hawkinsville, just n. of Yreka Comment
  UCD130123  Centaurea virgata subsp. squarrosa T. C. Fuller 1969-7-1 18618 Siskiyou Hawkinsville, just north of Yreka. Comment
  SEINET10741260 Image available Centaurium namophilum var. nevadense Edward L. Greene 1876-8-12 Greene 895 Siskiyou Collected near Yreka. Comment
  JEPS38136  Centromadia fitchii Geo. D. Butler 1908-7-23 507 Siskiyou Yreka Comment
  CHSC30247  Cephalanthera austiniae M. S. Taylor 1980-7-8 3087 Siskiyou On n side of Castle Lake Rd (39N24), ca. 0.9 mi w of its jct with 40N26 at se side of Lake Siskiyou, w of Mt. Shasta City. 1036 Comment
  CAS-BOT-BC384964  Cerastium arvense Gilbert Muth 1965-8-18 s.n. Siskiyou Trail, north side of Black Mountain Comment
  RSA576947  Ceratophyllum demersum L. C. Wheeler 1934-6-3 22625 Siskiyou Cherry Flat, Klamath River; Siskiyou Mts. Mt. Diablo Mer. 518 Comment
  CAS-BOT-BC147682  Cercocarpus betuloides var. betuloides L. E. Smith 1913-5-28 s.n. Siskiyou Yreka Comment
  POM88102  Cercocarpus ledifolius Geo. D. Butler 1910-5-4 1274 Siskiyou Dry hill, Yreka. Comment
  JEPS80545  Chaenactis douglasii var. douglasii Gilbert Muth 1965-8-12 216 Siskiyou Black Mountain front slope, Marble Mt. Wilderness Area Black Mountain, Marble Mountain 2194 Comment
  OBI55466  Chaenactis douglasii var. douglasii David J. Keil, Kathleen Keil 1992-7-21 23538 Siskiyou Klamath NF SE of Callahan. forest Rd 40N08, 1.7 mi W of Scott Mtn Rd (hwy 3) Comment
  CAS-BOT-BC106038  Chaenactis suffrutescens Brandegee s.n. Siskiyou Mt. Shasta Comment
  JEPS101314  Chaenactis suffrutescens Dean W. Taylor 1999-7-18 17286 Siskiyou Moffett Creek Road 2.8 miles South from junction with Highway 3, opposite confluence Crooked Creek 295 Comment
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Jul 5 2007
  CAS-BOT-BC141579  Chamaebatiaria millefolium Elmer I. Applegate 1935-8-4 10025 Siskiyou Upper Ice Cave, Lava Beds National Monument Comment
  CAS-BOT-BC141582  Chamaebatiaria millefolium Wm. Bridge Cooke 1938-8-24 11579 Siskiyou In a small ravine west of Bolam Creek - Mount Shasta 2133 Comment
  RSA697385  Chamaecyparis lawsoniana Leo Miller 1938-07 s.n. Siskiyou Siskiyou Mountains. 915 Comment
  CHSC1915  Chamaesaracha nana V. Holt 1932-6-23 Siskiyou McCloud river. Comment
  RSA12607  Chamaesyce serpillifolia C. B. Wolf 1934-7-6 5978 Siskiyou 1/4 mile east of Mt. Shasta City, southwest slope of Mt. Shasta 1098 Comment
  RSA499041  Chamaesyce serpillifolia L. C. Wheeler 1934-9-20 3289 Siskiyou Lumgrey Creek. 671 Comment
  JEPS100296  Chamaesyce serpillifolia subsp. serpillifolia Dean W. Taylor 2001-8-28 17904 Siskiyou Mt. Shasta; Ski Park Highway 0.7 miles north from Highway 89 at Snowmans Hill Summit 1417 Comment
  SBBG28479  Chamaesyce serpillifolia subsp. serpillifolia L. C. Wheeler 1934-9-20 3289 Siskiyou Lumgrey Crk 670 Comment
  CAS-BOT-BC166093  Chamerion angustifolium subsp. circumvagum Doris K. Kildale 1929-8-24 9043 Siskiyou Rattlesnake Meadow, Preston Peak 1524 Comment
  CAS-BOT-BC68201  Cheilanthes gracillima John Thomas Howell 1939-8-3 14995 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC19022  Cheilanthes gracillima J. O. Sawyer 1969-7-10 1303 Siskiyou SE facing slope above South Sugar Lake 2165 Comment
  CAS-BOT-BC68239  Cheilanthes gracillima Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Trinity Mountains - Road to Mumbo Basin 1889 Comment
  UC1536790  Chenopodium album Gordon H. True Jr. 1939-7-25 1033 Siskiyou nw Dorris; Meisse Lake Comment
  CAS-BOT-BC452258  Chimaphila umbellata John Thomas Howell 1937-7-26 13559 Siskiyou Caribou Gulch Comment
  CAS-BOT-BC452279  Chimaphila umbellata Doris K. Kildale 1929-8-24 9074 Siskiyou Rattlesnake Meadow, near Preston Peak 1524 Comment
  CAS-BOT-BC452282  Chimaphila umbellata John Thomas Howell 1937-7-26 12559 Siskiyou Caribou Gulch Comment
  CDA1896  Chloris virgata T. C. Fuller 1966-10-5 15243 Siskiyou West side of Interstate 5 just south of exit to Hilts. 0 Comment
  CAS-BOT-BC39662  Chorispora tenella T. C. Fuller 1970-3-24 s.n. Siskiyou Juvenile Hall, south of junction of Annie and State Streets, Yreka. Comment
  CAS-BOT-BC36245  Chrysolepis sempervirens Geo. B. Grant 1902-9-8 s.n. Siskiyou Mount Shasta, Horse Camp Comment
  HSC33958  Chrysolepis sempervirens J. P. Smith 1974-5-25 7429 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  HSC45030  Chrysolepis sempervirens Maralyn O'Meara 1974-5-25 399 Siskiyou Along road to Duck Lakes trail 1402 Comment
  HSC4937  Chrysolepis sempervirens J. O. Sawyer 1968-7-23 574 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  UC1409349  Chrysolepis sempervirens Frederick W. Oettinger 1968-8-22 589 Siskiyou ne face English Peak (w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2225 Comment
  UC5441  Chrysolepis sempervirens Milo S. Baker 1893-8-8 Siskiyou Medicine Lake 1981 Comment
  UC711898  Chrysolepis sempervirens Roxana S. Ferris and Laura Lorraine 1941-8-11 10508 Siskiyou about 7 mi from Medicine Lake (on road to Modoc Lava Beds National Monument); Shasta National Forest Comment
  LA86550  Cinna latifolia J. M. Tucker; 1963-8-19 3775 Siskiyou Marble Mountain Wilderness Area, headwaters of Canyon Creek 1950 Comment
  CAS-BOT-BC190004  Cinna latifolia J. R. Swallen 1940-8-22 15662 Siskiyou Mount Shasta. Near springs in Mud Creek Canyon. 1981 Comment
  CAS-BOT-BC105874  Cirsium G. J. Muth 1969-8-12 1369 Siskiyou Second Valley 2225 Comment
  CAS-BOT-BC285347  Cirsium andersonii E. K. Balls 1949-7-8 13920 Siskiyou Road to Callahan from Scott Mt., southern Siskiyou County 1524 Comment
  CDA1183  Cirsium cymosum T. C. Fuller 1960-5-24 4342 Siskiyou 1.5 mi. E/ Yreka, N/ R.R. Comment
  CDA35789  Cirsium cymosum var. canovirens Jodi Aceves 2011-7-2 PDR# 1466465 Siskiyou Copco Lake, Ager Beswick Road. 0 Comment
  JEPS59123  Cirsium douglasii var. breweri Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou meadows at Sissons Region of the Upper Sacramento, Strawberry Valley, Sissons Comment
  CAS-BOT-BC32806  Cirsium drummondii subsp. lanatum Alice Eastwood 1912-8-30 2054 a Siskiyou Mount Eddy Comment
  UCR70780  Cirsium pastoris L. C. Wheeler 1934-7-16 02908 Siskiyou Siskiyou Mtns, Oak Knoll Ranger Station, on Klamath River 671 Comment
  OBI55422  Cirsium remotifolium var. odontolepis David J. Keil 1992-7-20 23495 Siskiyou Klamath NF, W of Fort Jones. Along Forest Rd 44N45, 4.4 mi S of Scott river rd Comment
  RSA184692  Cirsium remotifolium var. odontolepis Gilbert Muth 1966-8-1 485 Siskiyou Marble Valley Horse Pasture, Marble Mountains 1793 Comment
  CDA1610  Cirsium undulatum J. Massey 1988-7-7 s.n.-(B) Siskiyou East of Dorris, Glenn Butler property. 0 Comment
  SEINET270929  Cistanthe umbellata Richard J. Shaw 1963-6-10 1294 Siskiyou Highway 99 2 miles south of Weed. Comment
  CAS-BOT-BC164164  Clarkia concinna L. B. Kildale 1930-6-1 9717 Siskiyou Salmon River between Oak Bottom and Somes Bar Comment
  CAS-BOT-BC163455  Clarkia purpurea subsp. quadrivulnera Lewis S. Rose 1945-6-22 45157 Siskiyou Walker, Klamath River 533 Comment
  POM208257  Clarkia purpurea subsp. quadrivulnera Louis C. Wheeler 1934-6-2 2610 Siskiyou Oak Knoll ranger station, Klamath River; Mt. Diablo Mer. 671 Comment
  UC163720  Claytonia exigua subsp. exigua Geo. D. Butler 1909-3-28 678 Siskiyou near Yreka Comment
  POM101992  Claytonia parviflora Geo. D. Butler 1910-5-8 1305 Siskiyou Near Yreka. Comment
  HSC64297  Claytonia parviflora subsp. parviflora J. P. Smith 1973-5-5 6456 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  RSA47998  Claytonia rubra Roxana S. Ferris 1948-6-12 11807 Siskiyou At Mule Creek crossing of Scott Mountain Road. 1524 Comment
  CAS-BOT-BC443819  Claytonia rubra subsp. rubra A. A. Heller 1919-6-27 13277 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC443832  Claytonia rubra subsp. rubra L. B. Kildale 1930-6-1 9848 Siskiyou Mill Creek near Etna Mills Comment
  CAS-BOT-BC443824  Claytonia rubra subsp. rubra A. A. Heller 1905-6-1 7924 Siskiyou Between/near Dunsmuir and Upper Soda Spring Comment
  HSC64301  Claytonia rubra subsp. rubra J. P. Smith, Steve Selva 1970-6-16 4021 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  RSA211260  Claytonia sibirica William J. Ferlatte 1966-6-22 109 Siskiyou Josephine Lake basin; Trinity Alps. 1677 Comment
  UC165950  Clematis ligusticifolia Geo. D. Butler 1910-8-3 1810 Siskiyou Yreka Creek Comment
  HSC19262  Clintonia uniflora J. O. Sawyer 1968-7-2 372 Siskiyou Upper drainage of Joe Creek 1677 Comment
  RSA181625  Cnicus benedictus Dorothy Parker 1950-6-19 458 Siskiyou Near Scott River, Scott Valley (Horn Ranch) 851 Comment
  HSC99300  Collinsia linearis G. L. Clifton, Walter Overton 1979-5-28 3402 Siskiyou Near Klamath River, close to the town of Seiad Valley 427 Comment
  POM43374  Collinsia linearis Geo. D. Butler 1910-5-1 1262 Siskiyou Humbug Mountain. Comment
  CHSC86632  Collinsia parviflora Jenny Marr 1993-7-1 15 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  SJSU6507  Collinsia rattanii R. W. Trivelpiece 1972-6-15 120 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp Comment
  POM208360  Collinsia rattanii Louis C. Wheeler 1934-6-12 2692 Siskiyou Hungry Creek Lookout, Siskiyou Mountains. 1463 Comment
  JEPS84248  Collomia grandiflora L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6312 Siskiyou just s state line (n-facing road bank of Indian Camp Road from Takilma to Happy Camp) Comment
  UC718486  Collomia grandiflora Carl B. Wolf 1934-7-6 5980 Siskiyou 1/4 mi e Mt. Shasta City (sw slope of mt.); Mt. Shasta 1097 Comment
  UC879755  Collomia grandiflora A. A. Heller 1916-6-23 12436 Siskiyou near Black Butte (n of Sisson) 1127 Comment
  CDA40001  Collomia grandiflora R. P. Allen 1952-7-31 s.n. Siskiyou McCloud. 0 Comment
  SEINET13773600  Collomia grandiflora G. D. Butler 1910-5-19 1366 Siskiyou Yreka Comment
  UCD118122  Collomia grandiflora Robert E. Preston 1995-6-18 875 Siskiyou Ca. 3 miles ESE of Hornbrook. Adjacent to Ager Road. 701 Comment
  HSC45982  Collomia heterophylla J. P. Smith 1973-5-5 6534 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC540702  Collomia tinctoria Dana York 2012-7-21 3131 Siskiyou Siskiyou Mountains: Rogue River, Siskiyou National Forest, ca. 270 m W of Echo Lake (slopes above lake) 1800 Comment
  UC133731  Collomia tinctoria Katharine Brandegee July 1887 Siskiyou Sissons 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
  RSA237987  Collomia tinctoria Frederick W. Oettinger 1969-8-12 1349 Siskiyou Trailside above Willow Spring, English Lake Trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  RSA758586  Collomia tinctoria R. F. Thorne 1969-8-2 63392 Siskiyou Klamath National Forest, Salmon Mountains: Marble Mtn Wilderness, along trail to English Peak. 1159 Comment
  HSC30432  Collomia tracyi Frederick W. Oettinger 1969-7-11 982 Siskiyou Marble Mtn. Wilderness Area, ridge of Little Medicine Mtn. N of Hancock Lake 2043 Comment
  JEPS87635  Conyza canadensis Vernon H. Oswald and Lowell Ahart 1994-8-10 6452 Siskiyou Pilgrim Creek Rd (FS13) at creek Mud Creek (2.7 mi n of Hwy 89, ca 4.5 air mi ne of McCloud) 1097 Comment
  CAS-BOT-BC133724  Corallorhiza A. M. Vollmer; L. Beane 1951-6-2 59 Siskiyou Field redacted by CAS, contact the data manager for more information Comment
  CHSC2331  Corallorhiza maculata V. Holt 1932-6-26 Siskiyou Mt. Eddy. 1828 Comment
  UC673558  Corallorhiza maculata Dorothy Tebbe 1929-7-14 115 Siskiyou Mount Eddy Comment
  UC1299376  Corallorhiza mertensiana Freed W. Hoffman 1948-8-7 2661 Siskiyou between West Branch Public Camp and California-Oregon state line (Waldo-Happy Camp Rd.); North Coast Ranges Comment
  CHSC70054  Cordylanthus tenuis subsp. pallescens T. I. Chuang; L. R. Heckard 1969-8-21 6741 Siskiyou Southwest of Black Butte, northwest of Mt. Shasta city. 1066 Comment
  SEINET10913361 Image available Cordylanthus tenuis subsp. pallescens Francis W. Pennell 1940-7-18 Pennell 26184 Siskiyou Route 99. Gravelly andesitic slope. 2-3 miles north of Mount Shasta City. 1158 Comment
  UCD123183  Cordylanthus tenuis subsp. viscidus Barbara L. Wilson; Richard E. Brainerd 2010-8-6 16234 Siskiyou at sign at border of Shasta-Trinity National Forest on Highway 89 east of McCloud. 1356 Comment
  RSA237382  Cornus californica Frederick W. Oettinger 1969-7-18 1058 Siskiyou Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  UC1280736  Cornus glabrata H. E. McMinn 1931-6-26 2511 Siskiyou near Dunsmuir Comment
  SFV5174  Cornus nuttallii B. C. Templeton 1960-6-21 8540 Siskiyou Klamath Mountains Scott Mountains, about 1 mile north of Siskiyou-Trinity County line. Canyon side. 1525 Comment
  UC61181  Cornus nuttallii W. A. Setchell, C. C. Dobie 1902-6-18 Siskiyou Mt. Shasta, Sisson Comment
  CAS-BOT-BC210412  Cornus sericea Geo. D. Butler 1908-8-21 86 Siskiyou Etna Creek Comment
  CHSC40092  Cornus sericea subsp. sericea A. A. Heller 1920-6-20 13392 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1158 Comment
  UC1190158  Cornus sericea subsp. sericea Ira L. Wiggins 1955-7-24 13503 Siskiyou trail at crossing of China Creek (above diversion dam) 1301 Comment
  UC1280732  Cornus sericea subsp. sericea H. E. McMinn 1931-6-27 2513 Siskiyou Mt. Shasta City Comment
  UCD110080  Corylus cornuta subsp. californica AT Leiser 1973-3-22 s.n. Siskiyou Dunsmuir. Comment
  SACT002820  Corylus rostrata var. californica Geo Dobbins 1961-6-19 Siskiyou 5 miles west of Oregon Caves National Monument. Comment
  CDA25823  Crataegus douglasii G. D. Barbe 1984-6-8 4167 Siskiyou Confluence of Kidder Creek with Scott River, 0.7 mile north of Highway 3 on Lighthill Road south of Fort Jones. 0 Comment
  HSC99922  Crataegus suksdorfii J. O. Sawyer, & R. J. Cole 2010-6-26 4609 Siskiyou Hilt-Hungry Road, Klamath National Forest. 845 Comment
  RSA15690  Crataegus suksdorfii Carl B. Wolf 1927-8-26 1080 Siskiyou Klamath River. 4 miles below Hamburg Comment
  POM33154  Crepis bakeri subsp. bakeri Geo. D. Butler 1910-5-10 1328 Siskiyou Goosenest foothills 1524 Comment
  HSC37547  Crepis monticola J. P. Smith 1974-5-27 7634 Siskiyou Along FS Rd. 47N03 1280 Comment
  CDA4445  Crepis occidentalis Jess Grisham 1958-5-12 399 -58 Siskiyou W.H. Gamble property, Yreka. 0 Comment
  CAS-BOT-BC290874  Crepis pleurocarpa Alice Eastwood 1923-5-23 11925 Siskiyou Near Cantara Comment
  CAS-BOT-BC376573  Crepis pleurocarpa Peter H. Raven 1956-9-4 10396 Siskiyou Pass just s. of Mt. Eddy 2438 Comment
  CDA4439  Crepis pleurocarpa Agricultural Commissioner Aug 1951 Siskiyou Macdoel. 0 Comment
  UC1934614  Crepis pleurocarpa P. M. Peterson, J. M. Saarela & C. J. Sears 2006-8-9 19779 Siskiyou Pacific Crest Trail, above Taylor Lake, Russian Wilderness 653 Comment
  UC581192  Crepis pleurocarpa E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1896 Siskiyou about 7 mi sw Yreka (s of hwy from Yreka to Fort Jones); Forest House Mt. 1363 Comment
  HSC19045  Crepis pleurocarpa J. O. Sawyer 1969-7-16 1125 Siskiyou SW-facing slope W of Russian Lake 2210 Comment
  CAS-BOT-BC299731  Crocidium Doris K. Kildale 1929-5-1 7834 Siskiyou Callahan Comment
  JEPS93823  Crocidium multicaule Vernon H. Oswald and Lowell Ahart 1998-6-11 9197 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on the s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  POM356384  Crocidium multicaule L. C. Wheeler 1935-5-5 3463 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  UC78394  Cryptantha affinis Katharine Curran Jul 1887 Siskiyou Sisson's Comment
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Mar 27 2016
  HSC696  Cryptantha affinis William J. Ferlatte 1967-8-23 1107 Siskiyou Kidd Creek Trail 1951 Comment
  SEINET12280691  Cryptantha affinis Unknown 1936-1 13062 Siskiyou near Hornbrook Comment
  JEPS87644  Cryptantha ambigua Vernon H. Oswald and Lowell Ahart 1994-8-10 6455 Siskiyou ca 4.5 mi (air) ne McCloud (Pilgrim Creek Rd (FS13), just e of Mud Creek, 2.7 mi n of Hwy 89) 1097 Comment
  RSA715935  Cryptantha flaccida L. Ahart 2005-6-10 12070 Siskiyou 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. 777 Comment
  CAS-BOT-BC278776  Cryptantha subretusa R. C. Wenk 2005-7-19 334 Siskiyou Along Pacific Crest Trail, near top of pass below Mt. Eddy 2438 Comment
  UC1170105  Cryptantha torreyana unknown 1956-7-16 30297 Siskiyou above Hotlum Station (n side of Mount Shasta); Mount Shasta 1524 Comment
  CAS-BOT-BC70480  Cryptogramma acrostichoides Ira L. Wiggins 1955-7-27 13529 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  SBBG81349  Cryptogramma acrostichoides R. N. Philbrick 1976-7-2 Siskiyou just above S side of Sugar Lake 1981 Comment
  CAS-BOT-BC85606  Cupressus bakeri C. B. Wolf; E. R. Johnson 1934-10-8 6167 Siskiyou Modoc Lava Beds, 1 mi. N.E. of Timbered Crater on Old Stage Rd. from Dana to Little Hot Springs Valley 1219 Comment
  NY16608  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
  RSA50556  Cupressus bakeri C. B. Wolf 1944-8-29 11478 Siskiyou NW side Goose Nest mtn, about 1 mi due S of old Smith sawmillon montague to Mt. Hebron Rd. 1677 Comment
  UC813438  Cupressus bakeri Louis C. Wheeler 1935-4-14 3417 Siskiyou West Fork Seiad Creek; Siskiyou Mts., Mt. Diablo Mer., Seiad Creek 1158 Comment
  POM120002  Cupressus bakeri Geo D. Butler 1910-7-4 1637 Siskiyou Goosenest foothills 1220 Comment
  CAS-BOT-BC224418  Cuscuta californica Copeland 1903-7-6 3498 Siskiyou Hornbrook Comment
  RSA184718  Cuscuta occidentalis Gilbert Muth 1966-8-1 490 Siskiyou Marble Valley Horse Pasture, Marble Mountains 1793 Comment
  RSA12491  Cuscuta suksdorfii var. subpedicellata C. B. Wolf 1934-7-4 5946 Siskiyou 6 8/10 mi. from Dry Lake Lookout on rd. to Horse Creek, Siskiyou Mts. Comment
  JEPS49767  Cycladenia humilis var. humilis W. L. Jepson 1902-7-17 2072 Siskiyou w. Siskiyou, The Devil's Backbone 1828 Comment
  UC455926  Cycladenia humilis var. humilis I. J. Condit 1911-7-22 Siskiyou trail to Horse Camp Mt. Shasta 1524 Comment
  UC564181  Cycladenia humilis var. humilis Elmer I. Applegate 1935-6-10 9492 Siskiyou s. slopes of Caldwell Butte; Lava Beds Nat'l Monument, Caldwell Butte Comment
  CAS-BOT-BC190351  Cynosurus echinatus D. E. Breedlove 1962-6-10 3334 Siskiyou On the north bank of the Klamath River at its junction with Goff Creek, 4.5 miles west of Seiad. 411 Comment
  UC837442  Cyperus acuminatus Louis C. Wheeler 1934-10-11 3317 Siskiyou Oak Knoll Ranger Station Siskiyou Mts., Klamath R., Oak Knoll Ranger Station 670 Comment
  POM211264  Cyperus bipartitus L. C. Wheeler 1934-9-15 3259 Siskiyou Walker, Klamath River, Siskiyou Mts. (Mt. Diablo Mer.) 518 Comment
  CDA30916  Cyperus odoratus M. Beyers, G. F. Hrusa 2010-8-18 697 Siskiyou Highway 96; Sluice Box Klamath River Access. 556 Comment
  HSC36425  Cystopteris fragilis J. O. Sawyer 1969-8-4 1876 Siskiyou S of S Sugar Lake 2104 Comment
  RSA59499  Cystopteris fragilis E. K. Balls 1950-5-17 14714 Siskiyou By Schebchin Butte, Lava Beds National Monument 1402 Comment
  UCD136360  Cystopteris fragilis P. Quentin Tomich 1954-6-29 435 Siskiyou Silver Cave, Lava Beds National Monument. 1402 Comment
  CAS-BOT-BC189808  Dactylis glomerata Carl B. Wolf 1927-8-26 1105 Siskiyou On the Klamath River, 8 miles above Happy Camp. Comment
  CAS-BOT-BC192256  Danthonia californica John Thomas Howell 1939-8-5 15076 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC73276  Danthonia californica Gail Newton 1980-6-20 473 Siskiyou Near Bald Mtn. 1097 Comment
  UCD60495  Danthonia californica Beecher Crampton 1956-8-21 3807 Siskiyou South slope of Gumboot Lake, headwater of the south Fork of the Sacramento River, ca. 15-16 miles southwest of Mt. Shasta City. 1920 Comment
  CHSC118612  Danthonia unispicata Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016013 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539617m E, 4586637m N. 1360 Comment
  CAS-BOT-BC76242  Darlingtonia californica Wayne Roderick 1967-7-28 s.n. Siskiyou At head of Gumboot Lake, southwest of Mount Eddy. 1828 Comment
  CAS-BOT-BC420660  Darmera peltata Don. Reinoehl 1925-4-1 s.n. Siskiyou Dunsmuir Comment
  CAS-BOT-BC141838  Dasiphora fruticosa Alice Eastwood 1912-8-30 2025 Siskiyou Summit, Mount Eddy Comment
  RSA605527  Datisca glomerata L. C. Wheeler 1959-7-26 7608 Siskiyou Marble Mountains: Somes Bar. Comment
  HSC43033  Daucus carota J. O. Sawyer, K. T. Stillman 1976-7-2 2806 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  CAS-BOT-BC9564  Delphinium antoninum J. H. Thomas 1954-5-13 4150 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville 1127 Comment
  HSC36435  Delphinium depauperatum J. P. Smith 1974-5-26 7579 Siskiyou Along FS Rd. 47N03, 1/4 mi. NE of Chandler Glade 1768 Comment
  HSC61772  Delphinium glaucum Ruby Van Deventer 1960-7-14 Siskiyou Poker Flat 1585 Comment
  HSC76663  Delphinium glaucum K. T. Stillman 1976-7-29 309 Siskiyou Marble Mtn. Wilderness Area, Bear Creek Trail 1585 Comment
  CAS-BOT-BC9883  Delphinium nudicaule George Dexter Butler 1910-5-7 1299 Siskiyou Near Yreka Comment
  CAS-BOT-BC9889  Delphinium nudicaule Elmer Ivan Applegate 1895-5-29 10 a Siskiyou Sisson Comment
  CAS-BOT-BC9891  Delphinium nudicaule Doris K. Kildale 1930-6-1 9852 Siskiyou summit between Sawyers Bar and Etna Mills Comment
  CHSC71319  Delphinium nuttallianum Vernon H. Oswald; Lowell Ahart 1998-6-11 9205 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. Meadow, bordering the lake. 1402 Comment
  HSC34156  Delphinium nuttallianum J. O. Sawyer 1969-7-9 1223 Siskiyou Along trail to Sugar Lake. 1768 Comment
  RSA120770  Delphinium nuttallianum S. S. Tillett 1956-7-9 651 Siskiyou E side of Scott Mtn; Siskiyou Trinity County line; 8 miles SE of Callahan. 1890 Comment
  CAS-BOT-BC118073  Delphinium nuttallianum William Bridge Cooke 1938-7-1 11156 Siskiyou Near Wagon Camp. Locally common at the lower end of the Wagon Camp meadow along the stream and roadside Comment
  POM211394  Deschampsia danthonioides L. C. Wheeler 1934-6-10 2674 Siskiyou Hungry Creek; Siskiyou Mts. 1098 Comment
  HSC65676  Deschampsia elongata Donald W. Miles 1979-7-21 20 Siskiyou Near Black Fox Mt., 20 mi. NE of McCloud, 3/4 way up Shirttail Canyon. 1585 Comment
  JEPS25655  Deschampsia elongata Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7298 Siskiyou ca. 4 mi. n.-n.e. Preston Peak (just e. of Del Norte Co. line); Siskiyou Mts., Twin Valley, Indian Creek watershed 1493 Comment
  SD98874  Dianthus armeria Darley F. Howe 1977-7-2 4981 Siskiyou Scott River, resort area. 609 Comment
  CAS-BOT-BC388466  Dianthus deltoides Duncan Dunning 1921-7-16 s.n. Siskiyou Toad Lake, southeast of Toad Mountain, northwest of Hambone, southeastern Siskiyou County Comment
  CAS-BOT-BC402219  Dicentra chrysantha Volney Rattan 1884-1-1 s.n. Siskiyou Road to Stony Creek down Black Butte Comment
  HSC67685  Dicentra formosa John Palmer 1980-7-24 630 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  UCR143359  Dicentra formosa L. C. Wheeler 1934-8-2 3013 Siskiyou Siskiyou Mtns, Head of Jaynes Canyon 2043 Comment
  CHSC89530  Dicentra formosa subsp. oregana G. F. Hrusa 2001-6-6 15854 Siskiyou Siskiyou Mountains. Nr. summit of pass betw. Happy Camp and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. Roadside. UTM: 10S, 4649821 N, 0456023 E. 1424 Comment
  RSA120726  Dicentra pauciflora S. S. Tillett 1956-7-9 644 Siskiyou E of Scott Mountain, ca. 8 mi. SE of Callahan. Trinity-Siskiyou Cos line. 1829 Comment
  UC164474  Dichelostemma capitatum Geo. D. Butler 1910-4-17 1192 Siskiyou near Yreka Comment
  UCSB13236  Dichelostemma capitatum Breedlove, Dennis 1962-6-10 Siskiyou along Indian Creek Road, 10.5 miles northwest of Happy Camp; Siskiyou Mountains 518 Comment
  RSA577467  Dichelostemma congestum L. C. Wheeler 1935-6-9 3567 Siskiyou Siskiyou Mountains; Yreka Creek (Mt Diablo Mer.) 1220 Comment
  HSC44875  Dichelostemma multiflorum J. P. Smith, Steve Selva 1970-6-16 4022 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 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
  JEPS40718  Dieteria canescens var. incana Geo. D. Butler 1911-9-11 1869 Siskiyou Comment
  UC618850  Dieteria canescens var. shastensis W. Bridge Cooke 1938-8-5 11439 Siskiyou MacBride Spring Road Mount Shasta, MacBride Spring Road Comment
  UCD70188  Dieteria canescens var. shastensis D. Sanchez-Mata 1997-9-18 s.n. Siskiyou Mount Shasta-Lake Siskiyou-Gumboot Lake. South Fork (Sacramento River) Road. 1340 Comment
  CAS-BOT-BC291005  Dieteria canescens var. shastensis R. E. Frenkel 1964-10-2 900 Siskiyou On Everitt Memorial Hwy., 1.7 miles north of McCloud River RR crossing, near Mount Shasta 1290 Comment
  CAS-BOT-BC208974  Digitaria ischaemum Carl B. Wolf 1927-8-26 1089 Siskiyou On the Klamath River, 14 mi. above Happy Camp. Comment
  CAS-BOT-BC153454  Diplacus layneae Alice Eastwood 1912-7-17 1271 Siskiyou Sisson Comment
  SBBG24941  Diplacus nanus H. and M. Dearing 1939-7-1 3779 Siskiyou Salmon Mtn 1828 Comment
  SEINET8250644  Diplacus nanus J. M. Tucker 1963-7-7 3724 Siskiyou in vicinity of Pradise Lake, at the base of Kings Castle on the east side, MArble Mountain Wilderness Area. 1981 Comment
  UC1222250  Disporum hookeri Joseph P. Tracy 1951-6-16 19493 Siskiyou summit of The Siskiyous, at crossing of Takilma-Happy Camp Road, near State Line Takilma-Happy Camp Road; The Siskiyous, Takilma-Happy Camp Road Comment
  UC375204  Disporum hookeri Geo. D. Butler 1909-4-27 690 Siskiyou Quartz Valley Comment
  SEINET4170351  Disporum hookeri Unknown 1921-9-14 Siskiyou Siskiyou Comment
  HSC19278  Dodecatheon alpinum J. O. Sawyer 1968-6-25 325 Siskiyou Along Horse Range Creek 1829 Comment
  JEPS84211  Dodecatheon jeffreyi L. R. Heckard with J. Hickman et al. 1986-7-17 6464 Siskiyou ca 5 mi n of the town Seiad Valley (s of Lily Pad Lake, trail up Kangaroo Peak); s of Lily Pad Lake, n of Seiad Valley 2011 Comment
  HSC19277  Dodecatheon jeffreyi J. O. Sawyer 1968-7-22 254 Siskiyou Between Hancock and Diamond Lakes 1951 Comment
  HSC40000  Draba aureola Jennifer Whipple 1976-7-24 1121 Siskiyou NW face of Mt. Eddy 2713 Comment
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Jul 7 2020
  CAS-BOT-BC41755  Draba howellii John Thomas Howell 1937-7-24 13417 Siskiyou Salmon-Trinity Alps. Caribou Basin. 2286 Comment
  CAS-BOT-BC41766  Draba howellii J. O. Sawyer 1969-7-2 1021 Siskiyou Ridge east of Hogan Lake. 2255 Comment
  HSC61208  Draba howellii Al Hobart 1967-8-9 Siskiyou El Capitan Comment
  JEPS53503  Draba howellii Geo. D. Butler 1908-8-8 33 Siskiyou Marble Valley 1676 Comment
  CAS-BOT-BC41312  Draba pterosperma K. T. Stillman 1976-6-25 25 Siskiyou Marble Mountain Wilderness Area. 2072 Comment
  POM259621  Draba pterosperma J. T. Howell 1939-8-8 s.n. Siskiyou Marble Mountains: Black Mountain Comment
  JEPS18871  Draperia systyla Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-26 5965 Siskiyou Canyon at the headwaters of the South Fork of Sacramento River, about 3.5 miles below southwest of the town of Mt. Shasta [formerly Sisson] 1371 Comment
  CHSC62547  Drosera rotundifolia L. P. Janeway 1993-8-30 4566 Siskiyou West side of Cedar Lake; head of South Fork Sacram ... Field redacted by CHSC, contact the data manager for more information 1741 Comment
  HSC61835  Drymocallis glandulosa Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  HSC64754  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-7-17 4460 Siskiyou Below Kangaroo Lake. 1890 Comment
  UCD113085  Drymocallis glandulosa Lynette Renouf 1992-5-31 24 Siskiyou Shasta Trinity National Forest, SW of Mt. Shasta, along the south fork of the Sacramento River. Comment
  CAS-BOT-BC159434  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1928-7-1 5330 Siskiyou Forks of Salmon, Salmon River 365 Comment
  JEPS47209  Drymocallis glandulosa var. glandulosa Geo. D. Butler 1909-5-31 779 Siskiyou Humbug Comment
  SEINET6691603  Drymocallis lactea var. austiniae G. D. Butler 1910-7-8 1658 Siskiyou Shackleford Creek 1372 Comment
  HSC18925  Drymocallis lactea var. lactea J. O. Sawyer 1969-8-2 1708 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  HSC69709  Drymocallis lactea var. lactea Maralyn A. Renner 1980-7-15 1776 Siskiyou English Lake inlet 1780 Comment
  JEPS57170  Drymocallis pseudorupestris var. saxicola L. R. Heckard 1967-8-13 1705 Siskiyou Summit Region of Mount Eddy Mount Eddy; Summit Region of Mount Eddy 2743 Comment
  HSC48373  Drymocallis rhomboidea J. O. Sawyer 1969-6-10 802 Siskiyou S face near Sugar Lake 1829 Comment
  UC922661  Dryopteris arguta Annie M. Alexander and Louise Kellogg 1948-9-4 5575 Siskiyou between Somesbar and Forks of Salmon River (bank above Salmon River Rd); Siskiyou Mts Comment
  HSC65132  Dysphania botrys J. P. Smith, Steve Selva 1970-7-17 4413 Siskiyou Along Klamath River. Comment
  UC199653  Echinochloa crus-galli Geo. D. Butler 1908-8-28 490 Siskiyou near Oro Fino (Wright & Fletcher's Ranch); Wright & Fletcher's Ranch Comment
  UC2026511  Eleocharis bella Louis C. Wheeler 1958-8-24 7428 Siskiyou Shasta Lake. 1/4 mi. west of mouth of Cove Creek. Comment
  UC1100727  Eleocharis palustris Calvin McMillan, Malcolm A. Nobs 1949-6-17 803 Siskiyou Grass Lake, Highway 97 Comment
  CAS-BOT-BC112697  Eleocharis parishii Martin Simon Jussel 1936-7-3 s.n. Siskiyou Dunsmuir. Comment
  CAS-BOT-BC451557  Elodea canadensis Louis C. Wheeler 1934-6-3 2624 Siskiyou Cherry Flat, Klamath River, Siskiyou Mts. 518 Comment
  RSA184790  Elymus Gilbert Muth 1966-7-17 410 Siskiyou Ridge near lookout, Marble Mountains 2058 Comment
  HSC103026  Elymus caput-medusae J. P. Smith 2014-6-7 13884 Siskiyou Yreka 844 Comment
  SEINET12739839  Elymus elymoides G. D. Butler 1910-5-4 1278 Siskiyou Near Yreka. Comment
  UCD61688  Elymus elymoides subsp. californicus A. A. Heller 1920-6-24 13387 Siskiyou Metcalf's ranch, NE base of Mt. Eddy. 1280 Comment
  UC197116  Elymus elymoides subsp. hordeoides Geo. D. Butler 1910-5-4 1278 Siskiyou Yreka Comment
  HSC102707  Elymus elymoides var. californicus J. P. Smith 2013-6-17 13740 Siskiyou Off Tennant Road at a large, open pit. 1417 Comment
  HSC4775  Elymus elymoides var. californicus William J. Ferlatte 1966-8-4 316 Siskiyou Yellow Rose Mine 1982 Comment
  HSC103022  Elymus glaucus J. P. Smith 2014-6-6 13879 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  LA14818  Elymus glaucus Jason Swallen; 1939-7-28 13784 Siskiyou Mount Shasta, MacBride Springs 1523 Comment
  UC166039  Elymus glaucus Geo. D. Butler 1910-7-3 1624 Siskiyou Goosenest foothills; creek bed 1219 Comment
  UCR142757  Elymus glaucus L. C. Wheeler 1934-8-14 3143 Siskiyou Siskiyou Mts., east end White Mt. 1768 Comment
  CAS-BOT-BC206607  Elymus glaucus subsp. glaucus Copeland 1903-9-6 3802 Siskiyou Mt. Eddy Comment
  POM112867  Elymus multisetus Geo D. Butler 1909-5-25 823 Siskiyou Dry hill near Yreka Comment
  SEINET10554730  Elymus trachycaulus George D. Butler 1910-7-3 Butler 1624 Siskiyou Creek bed, Goose nest foothills. 1219 Comment
  CHSC106273  Elymus trachycaulus subsp. trachycaulus Lowell Ahart; John Dittes 2010-7-30 16968 Siskiyou About 20 yards south of the Shasta River, about 50 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  JEPS121626  Epilobium ciliatum Kendra Sikes 2011-8-24 Siskiyou Headwaters of Fawn Creek, east slope of the Eddys. Gently sloping wet meadow / fen on ultramafic soil; N aspect. Mumbo Basin quadrangle. FCS-1D Comment
  HSC19479  Epilobium ciliatum subsp. ciliatum J. O. Sawyer 1969-7-23 1446 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  POM171587  Epilobium ciliatum subsp. ciliatum Doris K. Kildale 1928-8-18 6479 Siskiyou Near head of north fork of Salmon River at English Lake 1524 Comment
  POM256465  Epilobium ciliatum subsp. ciliatum Edward Lee 1934-8-13 1068 Siskiyou Happy Camp to Waldo (Oregon) road, watershed of West Branch of Indian Creek, Klamath National Forest. 1372 Comment
  CHSC88100  Epilobium densiflorum Jenny Marr 1993-7-1 110 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC164267  Epilobium densiflorum Geo. D. Butler 1908-7-17 160 Siskiyou along creek near Yreka Comment
  UC61085  Epilobium densiflorum W. A. Setchell, C. C. Dobie 1902-7-21 Siskiyou Sisson Mt. Shasta Comment
  HSC69108  Epilobium glaberrimum Maralyn A. Renner 1980-8-6 2298 Siskiyou Cracker Meadow 1555 Comment
  POM254606  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1940-8-22 15472 Siskiyou Mount Shasta: near Clear Creek in Mud Creek Canyon 1982 Comment
  RSA120861  Epilobium glaberrimum subsp. glaberrimum H. K. Wagnon 1957-8-11 1711 Siskiyou East slope of Mt. Shasta, along Ash Cr., ca. 1 mi N of Military Pass Rd. Comment
  RSA264966  Epilobium hallianum Gilbert Muth 1975-7-30 s.n. Siskiyou Near Lily Pad Lake near Seiad Valley. 1585 Comment
  RSA237579  Epilobium hallianum Frederick W. Oettinger 1967-8-13 254 Siskiyou Below Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  UC1408917  Epilobium hallianum Frederick W. Oettinger 1969-8-19 1466 Siskiyou between King David Mt. and Abbots (margin of meadow); Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  HSC19493  Epilobium hornemannii subsp. hornemannii J. O. Sawyer 1969-7-18 1402 Siskiyou SW facing slope above S Russian Creek. 1905 Comment
  POM251088  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1938-8-18 11479 Siskiyou Mt. Shasta. 2439 Comment
  JEPS39209  Epilobium minutum Geo. D. Butler 1909-4-26 612 Siskiyou Oro Fino Comment
  SEINET6644398 Image available Epilobium minutum A. A. Heller 1905-1 7930 Siskiyou Upper Soda Spring Comment
  HSC49642  Epilobium minutum J. P. Smith, Steve Selva 1970-6-16 4038 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  UC422957  Epilobium minutum Milo S. Baker Siskiyou Lava bed Fall River Valley Comment
  JEPS84191  Epilobium obcordatum L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6405 Siskiyou cirque at head of canyon Hell's Canyon (ca 5 mi n of town of Seiad Valley) 1750 Comment
  HSC86524  Epilobium oreganum D. K. Imper 1987-7-23 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  CAS-BOT-BC171861  Epilobium septentrionale Alice Eastwood 1912-8-30 1997 Siskiyou Mount Eddy Comment
  POM46473  Epilobium siskiyouense Geo. D. Butler 1910-7-9 1727 Siskiyou Wooly Creek. 1677 Comment
  UC1181349  Epilobium siskiyouense R. Ornduff with J. R. Swanson 1960-7-27 6272 Siskiyou just below summit (nw side of mt.); Scott Mountain Comment
  HSC26928  Equisetum hyemale subsp. affine J. P. Smith, J. O. Sawyer 1971-9-18 4832 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  RSA239283  Equisetum hyemale var. affine Frederick W. Oettinger 1966-7-25 34 Siskiyou Along Timber Gulch Bank, Salmon River District, Klamath National Forest, Cecilville 701 Comment
  UCSC004623  Eragrostis Randall Morgan 2004-5-31 4176 Siskiyou Castle Crags State Park, shore of Sacramento River Comment
  RSA602818  Eragrostis cilianensis L. C. Wheeler 1935-7-20 3674 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  UC163822  Eremocarpus setiger Geo. D. Butler 1910-7-28 1794 Siskiyou dry land near Yreka Comment
  CAS-BOT-BC286703  Ericameria bloomeri L. E. Smith 1913-7-24 488 Siskiyou McCloud Comment
  SEINET7846083 Image available Ericameria bloomeri M. J. Williams 1985-8-14 1- 16 -87 Siskiyou SE side of Medicine Lake Comment
  SFV8418  Ericameria bloomeri J. M. Tucker 1968-9-14 4143 Siskiyou State Highway 89, 7 miles east of McCloud. Comment
  UC830817  Ericameria greenei Alice Eastwood 1912-8-29 2040 Siskiyou Mount Eddy Comment
  HSC68482  Ericameria nauseosa var. speciosa Maralyn A. Renner 1980-6-10 875 Siskiyou Ridge 1 mi. S of Greenhorn Rd. and 1 mi. E of Mill Creek 1341 Comment
  JEPS21517  Ericameria nauseosa var. speciosa Geo. D. Butler 1908-9-7 312 Siskiyou near Yreka (upper field on Butler's Ranch) Comment
  CAS-BOT-BC293493  Erigeron aliceae K. T. Stillman 1976-8-7 207 Siskiyou Marble Mountain Wilderness Area 1981 Comment
  CAS-BOT-BC293501  Erigeron aliceae Doris K. Kildale 1928-8-19 6577 a Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  UC163908  Erigeron aliceae Geo. D. Butler 1910-7-8 1653 Siskiyou Shackleford Creek 1371 Comment
  UC223692  Erigeron aliceae Elmer I. Applegate 1923-9-7 3950 Siskiyou Doggett Creek 1676 Comment
  SJSU6079  Erigeron aliceae R. W. Trivelpiece 1971-8-22 74 Siskiyou upper Tompkins Creek on west side Scott River about 6 miles SW of Scott Bar, Marble Mts 1524 Comment
  HSC92420  Erigeron bloomeri var. bloomeri Jennifer Whipple 1976-6-30 1197 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  UC163866  Erigeron bloomeri var. bloomeri Geo. D. Butler 1910-5-16 1350 Siskiyou Yreka Comment
  UCD131737  Erigeron breweri Dean William Taylor 1972-7-3 1599 Siskiyou At Cook and Green Pass. 1371 Comment
  CAS-BOT-BC294898  Erigeron cervinus K. T. Stillman 1976-9-9 471 Siskiyou Marble Mountain Wilderness Area. N & NE & E side of Black Mtn. Comment
  HSC76670  Erigeron compositus K. T. Stillman 1976-7-22 286 Siskiyou Marble Mtn. Wilderness Area Comment
  CAS-BOT-BC297188  Erigeron concinnus var. concinnus A. A. Heller 1905-6-19 8063 Siskiyou Grenada Comment
  HSC19464  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-5 1741 Siskiyou W of Little Duck Lake 2073 Comment
  JEPS109830  Erigeron nivalis Dean W. Taylor 2006-8-8 19578 Siskiyou Dry Creek Peak (ridge ca. 12 air miles NE of Mt Shasta summit, at headwaters Antelope Creek 2194 Comment
  JEPS16958  Erigeron petrophilus var. viscidulus Peter H. Raven 1956-9-4 10410 Siskiyou rocky s slope Mount Eddy 2651 Comment
  POM52134  Erigeron petrophilus var. viscidulus C. F. Baker 1903-8-18 887 Siskiyou Mt. Eddy 2287 Comment
  CDA4938  Erigeron philadelphicus T. C. Fuller 1958-6-19 1887 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  RSA50220  Erigeron philadelphicus E. K. Balls 1949-7-9 13927 Siskiyou 3.1 miles from Etna on road to Sawyer's Bar 915 Comment
  CDA34233  Eriodictyon californicum Jim Rea 2010-7-6 PDR# 1414046 Siskiyou Yreka, Quail Run near Schulmeyer Road. 0 Comment
  HSC13522  Eriodictyon californicum C. B. Wolf 1927-8-26 1001 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  UCSB24926  Eriodictyon lobbii Keefe, Joseph 1967-7-11 Siskiyou Roadside, 0.5 mile north of Castle Lake, 10 miles southwest of town of Mt. Shasta 1676 Comment
  HSC19476  Eriogonum compositum var. compositum J. O. Sawyer 1969-7-8 1094 Siskiyou SW slope above Music Creek 2360 Comment
  CHSC67579  Eriogonum congdonii James D. Jokerst 1992-7-30 3433 Siskiyou Camp above Tamarack Flat, NW of Mt. Eddy. Comment
  CAS-BOT-BC33564  Eriogonum diclinum Louis Cutter Wheeler 1934-9-1 3235 Siskiyou Siskiyou Mts., Jaynes Canyon. 1950 Comment
  HSC19482  Eriogonum diclinum J. O. Sawyer 1969-6-2 1008 Siskiyou Summit above Albert Lake 2256 Comment
  NY323263  Eriogonum diclinum L. C. Wheeler 1934-9-1 3235 Siskiyou Siskiyou Mountains; Mt. Diablo Mer.; Jaynes Canyon 1950.7 Comment
  CAS-BOT-BC255703  Eriogonum douglasii var. meridionale Gilbert J. Muth 1969-8-7 1267 Siskiyou Boulder Peak Ridge 2468 Comment
  NY622277  Eriogonum greenei E. L. Greene 1876-7-7 s.n. Siskiyou Yreka Comment
  RSA184662  Eriogonum lobbii var. lobbii Clare B. Hardham 1965-8-20 13033 Siskiyou Marble Mountains. Cudahy Lakes. Comment
  CAS-BOT-BC263656  Eriogonum luteolum var. luteolum Geo. D. Butler 1910-6-17 1572 Siskiyou Near Yreka Comment
  HSC26154  Eriogonum luteolum var. luteolum J. P. Smith, J. O. Sawyer 1972-9-14 5802 Siskiyou Miner's Creek Rd. just S of French Creek Rd. between Callahan and Etna. 915 Comment
  CHSC98891  Eriogonum marifolium L. P. Janeway; B. Castro 2007-7-29 9143 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2054 Comment
  HSC43461  Eriogonum marifolium Jennifer Whipple 1976-6-24 1130 Siskiyou N slopes of Mt. Eddy 2439 Comment
  HSC86628  Eriogonum marifolium D. K. Imper Jun 1987 Siskiyou 8 mi. E of the town of Mt. Shasta 1829 Comment
  CAS-BOT-BC263195  Eriogonum marifolium var. cupulatum R. H. Bohmannson 1926-7-1 s.n. Siskiyou Mt. Shasta Comment
  HSC67822  Eriogonum marifolium var. marifolium J. O. Sawyer, J. Cole 1980-7-20 3771 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  CAS-BOT-BC267393  Eriogonum marifolium var. marifolium Wm. Bridge Cooke 1939-6-23 13529 Siskiyou Mount Shasta. Along the Wagon Camp road in the vicinity of Wagon Camp Comment
  CAS-BOT-BC261677  Eriogonum nudum var. nudum Doris K. Kildale 1929-8-23 8805 Siskiyou Young's Valley, trail to Preston Peak 1524 Comment
  SEINET7064423  Eriogonum nudum var. nudum A. G. Vestal 1955-5-17 s.n. Siskiyou Scott Valley, 0.8 mile north of Etna on Route 3. (NAD83/WGS84). UTM Zone 10, 508463mE, 4590957mN. 899 Comment
  CAS-BOT-BC269738  Eriogonum nudum var. oblongifolium John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53570 Siskiyou Yreka 822 Comment
  SDSU6774  Eriogonum nudum var. oblongifolium D. F. Howe 1961-8-3 3132 Siskiyou 20.3 miles east of Happy Camp on #96. 549 Comment
  CAS-BOT-BC272495  Eriogonum nudum var. pubiflorum Wm. Bridge Cooke 1938-6-17 11037 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  CHSC70766  Eriogonum nudum var. pubiflorum A. Francis 1996-7-24 3639 Siskiyou South slope of Mt. Hoffman, NE of Arnica Sink. 2109 Comment
  POM165266  Eriogonum nudum var. pubiflorum E. B. Copeland 1903-7-3 3526 Siskiyou Klamathon. Comment
  JEPS25537  Eriogonum pyrolifolium Rimo Bacigalupi with Lincoln Constance 1959-6-16 7153 Siskiyou above Panther Meadow (just e of Ski Lodge; sw slopes of Mt. Shasta); Mt. Shasta 2346 Comment
  HSC43444  Eriogonum siskiyouense Jennifer Whipple 1977-8-5 2188 Siskiyou Slopes near Little Crater Lake 2195 Comment
  HSC81552  Eriogonum siskiyouense Thomas W. Nelson, Jane P. Nelson 1980-7-21 6153 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  JEPS109709  Eriogonum siskiyouense Dean W. Taylor 2002-7-20 18257 Siskiyou Forest Road 17 ca. 3.3 miles west (above) junction with Stewart Springs Road, Parks Creek 1524 Comment
  JEPS117877  Eriogonum siskiyouense unknown 1976-9-23 Siskiyou Along the trail up the SW side of Mt. Eddy 2438 Comment
  CAS-BOT-BC262760  Eriogonum strictum var. anserinum Louis C. Wheeler 1935-6-27 3610 Siskiyou Greenview, Scott Valley 883 Comment
  UC164295  Eriogonum strictum var. proliferum Geo. D. Butler 1910-5-27 1417 Siskiyou near Yreka Comment
  CAS-BOT-BC263395  Eriogonum strictum var. proliferum Milo S. Baker 1955-6-28 012 Siskiyou 0.3 mile north of Callahan 1005 Comment
  CAS-BOT-BC267939  Eriogonum umbellatum A. A. Heller 1916-7-20 12469 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  CAS-BOT-BC267993  Eriogonum umbellatum var. argus John Thomas Howell 1937-7-21 13169 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC17363  Eriogonum umbellatum var. argus Jerry Parker 1969-10-6 133 Siskiyou Ridge above High Lake 2134 Comment
  CHSC26172  Eriogonum umbellatum var. dumosum J. P. Kroessig 1977-8-6 61 Siskiyou Big Castle Lake, ca. 8.8 km wnw of Dunsmuir. 1700 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-BC268148  Eriogonum umbellatum var. humistratum Peter H. Raven 1956-9-4 10374 Siskiyou Sacramento-Trinity Pass south of Mt. Eddy 2255 Comment
  CAS-BOT-BC268154  Eriogonum umbellatum var. humistratum Peter H. Raven 1956-9-4 10418 Siskiyou On the summit of Mt. Eddy 2758 Comment
  UC909327  Eriogonum umbellatum var. lautum Dorothy Parker 1948-8-2 161 Siskiyou 1 1/2 mi from Etna (along Etna Creek); Scott Valley, Etna Creek 896 Comment
  JEPS94877  Eriogonum umbellatum var. modocense Vernon H. Oswald and Lowell Ahart 1998-7-21 9320 Siskiyou ne of Weed (Highway 97 at the 11.0 Mile Marker, 1.2 mi w of A12); Highway 97 at the 11.0 Mile Marker 1188 Comment
  RSA420694  Eriogonum umbellatum var. modocense M. B. Dunkle 1944-6-18 9128 Siskiyou Siskiyou National Forest. Comment
  JEPS56212  Eriogonum umbellatum var. nevadense Geo. D. Butler 1908-8-5 204 Siskiyou Summit above Cold Spring; Marble Mt. region, Wooly Creek Comment
  RSA65958  Eriogonum umbellatum var. nevadense F. W. Peirson 1923-7-19 3711 Siskiyou Near Bray. Comment
  SBBG14884  Eriogonum umbellatum var. polyanthum A. I. Richardson 1961-6-8 17 Siskiyou near Big Springs Rd N of jct with Hwy 97 914 Comment
  SBBG15960  Eriogonum umbellatum var. polyanthum D. Myrick 1961-6-22 316 Siskiyou Hwy 89 near McCloud 914 Comment
  CAS-BOT-BC262375  Eriogonum vimineum Geo. D. Butler 1910-7-31 1806 Siskiyou Near Yreka Comment
  OBI76912  Eriogonum vimineum Anthony Baniaga 2011-7-8 431 Siskiyou Klamath Natl Forest. Along Salmon river, on hwy 93 694 Comment
  UC912832  Eriogonum vimineum Lewis S. Rose 1941-8-28 41429 Siskiyou Macdoel 1219 Comment
  POM267114B  Eriogonum vimineum L. S. Rose 1941-8-28 41429 Siskiyou Macdoel 1220 Comment
  UC1950423  Eriophorum crinigerum Barbara Ertter 1990-7-14 9349 Siskiyou 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; E- facing hillside Comment
  POM358071  Eriophyllum lanatum Chadwick, Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  UC144325  Eriophyllum lanatum var. achilleoides A. A. Heller 1905-6-8 7992 Siskiyou Yreka Comment
  UC455499  Eriophyllum lanatum var. achilleoides I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1981 Comment
  UC472272  Eriophyllum lanatum var. achilleoides H. W. Furlong Sep 1901 Siskiyou summit to Ager; Northern Siskiyou Co Comment
  CAS-BOT-BC301099  Eriophyllum lanatum var. achilleoides L. E. Smith 1913-5-12 262 Siskiyou Edgewood Comment
  RSA92292  Eriophyllum lanatum var. achilleoides F. W. Peirson 1923-7-19 3915 Siskiyou Open Tableland 17 miles north of Bray Comment
  CAS-BOT-BC301448  Eriophyllum lanatum var. grandiflorum A. A. Heller 1916-6-22 12438 Siskiyou Near Black Butte north of Sisson 1097 Comment
  CAS-BOT-BC308283  Eriophyllum lanatum var. integrifolium G. J. Muth 1969-8-6 1189 Siskiyou Boulder Peak 2529 Comment
  UC60935  Eriophyllum lanatum var. integrifolium Geo. B. Grant 1902-9-1 5228 Siskiyou Shasta Springs Mount Shasta 609 Comment
  RSA238888  Eriophyllum lanatum var. lanceolatum Frederick W. Oettinger 1969-8-18 1435 Siskiyou Northeast of Horse Range Lake. Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area 1822 Comment
  NY168706  Eriophyllum rixfordii S. P. Rixford 1913-1 s.n. Siskiyou South side of Shaft Rock Mountain, near Hilt Comment
  UC1540157  Eryngium alismifolium Dean Wm. Taylor, Glenn L. Clifton, R. Doug Stone 1987-8-6 9246 Siskiyou White Deer Lake, extreme northeastern portion of county Comment
  CAS-BOT-BC54576  Erysimum capitatum L. E. Smith 1914-5-21 701 Siskiyou Yreka. Comment
  SEINET11249702  Erysimum capitatum var. capitatum L. E. Detling 1947-6-3 6057 Siskiyou Klamath NF, Happy Camp. 335 Comment
  RSA15591  Erysimum capitatum var. capitatum C. B. Wolf 1927-8-27 1128 Siskiyou On the Klamath River. 7 miles below Happy Camp. Comment
  HSC195  Erysimum perenne William J. Ferlatte 1966-7-7 214 Siskiyou N side of Caribou Mtn. 1982 Comment
  HSC65343  Erysimum perenne Rich White 1978-7-20 264 Siskiyou Ridge top E of Raspberry Lake 1768 Comment
  JEPS61854  Erythronium grandiflorum W. L. Jepson 1907-7-5 2826 Siskiyou Marble Mt. Comment
  CAS-BOT-BC505229  Erythronium grandiflorum Gilbert Muth 1966-7-8 350 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC78191  Erythronium grandiflorum subsp. grandiflorum L. P. Janeway 1983-7-3 378 Siskiyou Poker Flat 1524 Comment
  RSA445608  Eschscholzia californica subsp. californica J. P. Smith 1973-5-5 6541 Siskiyou Scott Bar along the Scott River. Comment
  JEPS74516  Eucephalus ledophyllus W. J. Ferlatte 1966-8-3 298 Siskiyou Yellow Rose Mine Trinity Alps 1981 Comment
  HSC471  Eucephalus ledophyllus var. ledophyllus William J. Ferlatte 1966-8-3 294 Siskiyou Josephine Lake basin 1677 Comment
  HSC93864  Eucephalus ledophyllus var. ledophyllus Jennifer Whipple 1977-8-4 2158 Siskiyou Wagon Creek drainage on the E face of Mount Eddy 2226 Comment
  CAS-BOT-BC310481  Eucephalus tomentellus Alice Eastwood 1912-8-30 1984 Siskiyou Mount Eddy Comment
  UC1034598  Euonymus occidentalis var. occidentalis Douglas Barbe 1955-6-30 60 Siskiyou 0.8 mi. n.w. Forest Camp (Etna, along Johnson Creek); Klamath Mts., Etna, Johnson Creek 944 Comment
  SBBG28444  Euphorbia lathyris L. C. Wheeler 1934-11-4 3358 Siskiyou Scott Bar, Scott River, Marble Mtns 518 Comment
  CDA36154  Euphorbia virgata C. Pirosko Jul 2003 s.n. Siskiyou 0 Comment
  SD64374  Euthamia occidentalis Darley F. Howe 1966-8-27 Siskiyou 3.2 miles north of Tule Lake 1310 Comment
  HSC65339  Festuca californica J. P. Smith 1973-5-5 6428 Siskiyou Along Cook and Green Pass Rd. Comment
  UCD65831  Festuca californica R. Tofsrud 1947-7-6 Siskiyou Near Gazelle. 1371 Comment
  CAS-BOT-BC278723  Festuca idahoensis K. T. Stillman 1976-7-21 274 Siskiyou Marble Mountain Wilderness Area Comment
  CAS-BOT-BC278740  Festuca idahoensis Melissa A. Berry 1957-7-11 s.n. Siskiyou Parrott Mill Road, vicinity of Callahan 1005 Comment
  POM215869  Festuca idahoensis L. C. Wheeler 1935-6-9 3560 Siskiyou Siskiyou Mounatins, Yreka Creek 1220 Comment
  LA13105  Festuca idahoensis J. R. Swallen; 1938-7-15 sn Siskiyou Mount Shasta, Along the road between Bear Springs and Wagon Camp 1676 Comment
  CAS-BOT-BC278873  Festuca occidentalis A. A. Heller 1915-7-18 12123 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC13  Festuca occidentalis William J. Ferlatte 1966-6-22 108 Siskiyou 3 mi. S of Big Flat 1585 Comment
  CAS-BOT-BC278917  Festuca ovina C. L. Hitchcock; J. S. Martin 1939-7-9 5321 Siskiyou 1/2 mile southeast of King's Castle, Marble Mts. 1828 Comment
  UC1034046  Festuca pratensis W. Bridge Cooke 1941-7-18 16056 Siskiyou Bear Springs Mount Shasta 1524 Comment
  SEINET10553347  Festuca pratensis A. Arthur Heller 1915-8-24 Heller 12214 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy in moist soil in the forest. The prevalent tree is Douglas fir with some white fir and sugar pine, after cutting the original stand of Jeffrey pine. The common undershrubs are ceanothus and Uva-ursi in the dry places with Salix and Corylus in low ground. 1189 Comment
  UC922370  Festuca roemeri Annie M. Alexander and Louise Kellogg 1949-7-22 5844 Siskiyou trail to Kings Castle, top of ridge Marble Mountains, Paradise Lake 2072 Comment
  UCD66263  Festuca roemeri R. Tofsrud 1949-8-3 Siskiyou Soap Creek Ridge, between Yreka and Fort Jones. Comment
  RSA451784  Fragaria californica M. B. Dunkle 1944-6-25 9026 Siskiyou Siskiyou National Forest Comment
  UC221671  Fragaria vesca H. E. Brown Jun 11 1897-Jun 16 1897 348 Siskiyou n side Mt. Shasta 1524 Comment
  UC555501  Fragaria vesca D. Tebbe 1929-7-1 10 Siskiyou Mt. Eddy at Donkey Camp; Mt. Eddy Comment
  JEPS44870  Fragaria vesca W. L. Jepson Jul 1894 13874 Siskiyou stage road between Sisson and Upton Comment
  CAS-BOT-BC437075  Fragaria vesca subsp. bracteata Alice Eastwood 1922-10-18 11517 Siskiyou Shasta Springs Comment
  SEINET6699530  Fragaria virginiana var. platypetala G. D. Butler 1910-5-10 1315 Siskiyou Goosenest Foothills 1524 Comment
  UC13828  Fritillaria atropurpurea Harley P. Chandler June, 1901 1592 Siskiyou near Marble Mountain (North Coast Ranges); North Coast Ranges 1981 Comment
  HSC46190  Fritillaria pudica Jennifer Whipple 1977-4-30 1882 Siskiyou Scott Valley near Weston Gulch 854 Comment
  JEPS25674  Galium ambiguum subsp. siskiyouense Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7319 Siskiyou on rocky ridgetop marking Del Norte-Siskiyou co. boundary Siskiyou Mts. (on steep grade just above jeep road between Poker Flat and Twin Valley) 1664 Comment
  HSC19069  Galium bolanderi J. O. Sawyer 1969-6-12 905 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  RSA240094  Galium bolanderi Frederick W. Oettinger 1969-8-22 1486 Siskiyou Along trail entering Horse Range Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CHSC57454  Galium boreale subsp. septentrionale L. P. Janeway 1984-6-21 861 Siskiyou Garvey Bar, south side Klamath River just east of Humbug Point. 594 Comment
  UC1483410  Galium glabrescens subsp. glabrescens Maralyn A. Renner 1980-8-7 2419 Siskiyou ridge s Preston Peak; Klamath National Forest, Preston Peak Quad. 1950 Comment
  JEPS119371  Galium grayanum var. grayanum Dana York 2011-8-12 3042 Siskiyou Klamath National Forest, Marble Mountain. Comment
  HSC44379  Galium triflorum Maralyn O'Meara 1973-6-25 236 Siskiyou Music Creek 1463 Comment
  HSC19066  Galium triflorum J. O. Sawyer 1969-7-26 1587 Siskiyou Along Sugar Creek 1707 Comment
  UC1971397  Garrya buxifolia Louis C. Wheeler 1958-8-18 7395 Siskiyou West Fork Seiad Creek. Comment
  CAS-BOT-BC182231  Garrya fremontii Carl B. Wolf 1927-8-26 1045 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  CAS-BOT-BC182269  Garrya fremontii L. E. Smith 1912-7-1 s.n. Siskiyou Hornbrook Comment
  POM78080  Garrya fremontii Geo. D. Butler 1910-3-12 1125 Siskiyou Near Yreka. Comment
  POM212181  Garrya fremontii Carl B. Wolf 1931-9-2 2392 Siskiyou Four miles above junction of McCloud Road with the Pacific Highway. 1189 Comment
  RSA467221  Gaultheria humifusa L. C. Wheeler 1934-8-16 3164 Siskiyou Johnson Dairy, Siskiyou Mts. 1646 Comment
  LA97737  Gaultheria ovatifolia J. M. Tucker; D. V. Hemphill 1974-7-27 4301 Siskiyou S side of Monument Lake, Marble Mountain Wilderness Area 1798 Comment
  RSA604467  Gaultheria shallon L. C. Wheeler 1959-7-25 7595 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  RSA120858  Gayophytum diffusum subsp. parviflorum G. D. Barbe 1957-7-13 378 Siskiyou Big Flat Public Camp, Klamath National Forest 1524 Comment
  UC164410  Gayophytum diffusum subsp. parviflorum Geo. D. Butler 1908-8-8 163 Siskiyou Comment
  CHSC71489  Gayophytum heterozygum Vernon H. Oswald; Lowell Ahart 1998-7-21 9316 Siskiyou Shasta NF plantation on the west side of Hwy. 97 2.2 mi northeast of Lake Shastina-Big Springs Rd. northeast of Weed. 975 Comment
  JEPS97185  Gentiana calycosa Julie Kierstead Nelson with Maria Ulloa-Cruz 1995-8-22 95058 Siskiyou 1 1/2 mi W of The Eddys (on Parks Creek Road (Rd. 17); W slope of Parks Creek drainage); Shasta-Trinity National Forests, Mt. Shasta Ranger District 1737 Comment
  HSC29222  Gentiana calycosa Frederick W. Oettinger 1969-8-1 1132 Siskiyou Marble Mtn. Wilderness Area, SE side of Wire Grass Meadow and bordering on English Lake outlet brook. 1677 Comment
  CAS-BOT-BC123769  Gentianella amarella subsp. acuta Copeland 1903-9-6 s.n. (= no. 3849 of C.F. Baker's distribution) Siskiyou Mt. Eddy Comment
  HSC30508  Geum macrophyllum Frederick W. Oettinger 1969-8-9 1316 Siskiyou Near Young's Cabin, Salmon Mts. 1357 Comment
  CAS-BOT-BC143594  Geum triflorum Elmer I. Applegate 1935-6-8 9431 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  JEPS60241  Geum triflorum L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2301 Siskiyou 0.8 mi s Bray junction (on U.S. Hwy 97, Murphy Wells); Murphy Wells 1493 Comment
  HSC49902  Gilia capitata subsp. capitata Maralyn O'Meara 1974-5-25 437 Siskiyou On Rd. 8, 2.4 mi. W of junction with Hwy. 3 1006 Comment
  CAS-BOT-BC283868  Glyceria borealis Alice Eastwood 1912-7-25 1285 Siskiyou Sisson Comment
  HSC69440  Glyceria elata John S. Palmer 1980-8-13 791 Siskiyou Dead Cow Creek, near FS 47N44 from Beaver Creek Rd. 1616 Comment
  LA86548  Glyceria elata J. M. Tucker; 1963-8-19 3774 Siskiyou Marble Mountain Wilderness Area, headwaters of Canyon Creek 1950 Comment
  RSA238377  Glyceria striata Frederick W. Oettinger, Robert F. Thorne 1969-8-7 1283 Siskiyou Upper edge of Sundew Bog, English Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  RSA239001  Glyceria striata Frederick W. Oettinger 1968-9-2 665 Siskiyou Southwest of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  CAS-BOT-BC302664  Gnaphalium palustre Geo. B. Grant 1902-9-6 5088 Siskiyou Sisson Comment
  UCD169266  Grayia spinosa T. Bruchman 1978-7-1 147 -A Siskiyou Tule Lake National Wildlife Refuge, along Hill Road. Comment
  CAS-BOT-BC314630  Grindelia hirsutula L. E. Smith 1915-7-1 s.n. Siskiyou Montague Comment
  SEINET10497304  Hackelia bella Mary Merello 1993-6-23 Merello 702 Siskiyou Shasta Trinity National Forest County Road A-10 (Everitt Memorial Hwy.) along roadside at the John Everitt Vista Point. Mixed conifer-hardwood forest. 1800 Comment
  CHSC96089  Hackelia micrantha L. P. Janeway 2006-7-3 8773 Siskiyou Klamath Ranges. Salmon Mountains; south side of upper Carter Meadows 0.5 km west of Carter Meadows Summit. 1798 Comment
  HSC76635  Hackelia micrantha K. T. Stillman 1976-6-25 35 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  UC722440  Hackelia micrantha C. L. Hitchcock, J. S. Martin 1939-7-6 5219 Siskiyou Takilma-Happy Camp Road 1676 Comment
  HSC58940  Hastingsia alba Marvin Butler 1971-7-8 21 Siskiyou Near Bell Echo Camp 1433 Comment
  JEPS30000  Hastingsia alba Rimo Bacigalupi, and L. Heckard, J. Weiler 1961-7-2 7986 Siskiyou n end town Mt. Shasta (Sisson) Comment
  CAS-BOT-BC504619  Hastingsia alba Peter H. Raven 1956-9-5 10443 Siskiyou Near North Fork of the Sacramento River 2194 Comment
  CAS-BOT-BC504624  Hastingsia alba Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  UC1951320  Hastingsia alba Robert F. Thorne and Fred Oettinger 1969-8-4 63389 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Wet meadow 0.2 miles N of Tobacco Lake. Comment
  HSC19550  Hastingsia serpentinicola J. O. Sawyer 1969-6-10 797 Siskiyou S face near Sugar Lake 1829 Comment
  RSA183695  Hazardia whitneyi var. discoidea Gilbert Muth 1965-8-4 310 Siskiyou Marble Mountains, Marble Valley Comment
  CAS-BOT-BC306365  Helenium autumnale Edward Lee 1934-8-12 1051 Siskiyou Near mouth of Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 426 Comment
  UCD148983  Helenium autumnale T. C. Fuller 1960-8-23 4966 Siskiyou around 1 mile southeast of Greenview, Scott Valley. Comment
  JEPS16962  Helenium bigelovii Peter H. Raven 1956-9-5 10451 Siskiyou North Fork of the Sacramento River 2194 Comment
  CAS-BOT-BC306746  Helenium bigelovii Gilbert Muth 1965-8-2 s.n. Siskiyou Marble Valley Comment
  CAS-BOT-BC309575  Helenium puberulum Alice Eastwood 1921-7-24 s.n. Siskiyou Castle Lake Comment
  UC1076043  Helianthella californica subsp. nevadensis Herbert L. Mason 1947-5-17 14761 Siskiyou on Scott Mountain Road five mi s Callahan Comment
  POM211774  Helianthus bolanderi L. C. Wheeler 1934-10-6 3311 Siskiyou Shasta Valley, 2 mi. SE of Yreka. (Mt. Diable Mer.) 854 Comment
  CAS-BOT-BC313463  Hemizonella minima A. A. Heller 1905-6-13 8016 Siskiyou Near Mott Comment
  UC1190166  Heracleum lanatum Ira L. Wiggins 1955-7-26 13512 Siskiyou just above mouth of Blind Horse creek S. Fork Salmon R. 886 Comment
  RSA237822  Heracleum maximum Frederick W. Oettinger 1967-8-3 237 Siskiyou Along trail SE side of Hancock Lake. The Salmon Mtns. High lake basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1936 Comment
  SD40655  Hesperocyparis bakeri Carl B. Wolf 1944-10-29 Siskiyou northwest side of Goose Nest Mountain, about 1 mile due south of Old Smith Sawmill on Montague to Mount Hebron Road 1675 Comment
  UC1034060  Hesperolinon micranthum W. Bridge Cooke 1941-9-5 16260 Siskiyou along the Memorial Hwy Mt. Shasta Comment
  UC17263  Hesperolinon micranthum W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sisson Mount Shasta Comment
  UC1212409  Hesperolinon micranthum Leo Whitney 1934-6-20 1835 Siskiyou cutover land near Lower Sheep Well (25 mi ne of Tennant) 1524 Comment
  CAS-BOT-BC422496  Hesperomecon linearis Volney Rattan No date on label s.n. Siskiyou Unspecified Comment
  JEPS94836  Heterotheca villosa var. minor Vernon H. Oswald and Lowell Ahart 1998-9-8 9607 Siskiyou 2 air mi nw of Indian Springs Mountain (USFS 3 0.1 mi w of Julia Glover Flat, 6 air mi w of Mosquito Lake and Whitehorse Flat Reservoir) 1127 Comment
  JEPS84316  Heterotheca villosa var. minor L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6324 Siskiyou 1/2 air mi from Red Butte (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1850 Comment
  HSC58972  Heuchera cylindrica Gilbert Muth 1975-7-31 4461 Siskiyou Near Kangaroo Mtn., close to the town of Seiad Valley 1920 Comment
  CAS-BOT-BC420708  Heuchera merriamii Edward Lee 1934-8-14 1102 Siskiyou near summit of Little Grayback, Siskiyou-Del Norte County Line 1859 Comment
  HSC22091  Heuchera merriamii J. O. Sawyer 1969-8-1 1685 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  CAS-BOT-BC420735  Heuchera merriamii Gilbert Muth 1966-1-1 308 Siskiyou Marble Mts. Comment
  UC705879  Heuchera micrantha var. diversifolia Marion Ownbey, Fred G. Meyer 1940-7-4 2175 Siskiyou nw of Hornbrook; Siskiyou Mts Comment
  CAS-BOT-BC425007  Heuchera micrantha var. micrantha John Thomas Howell 1937-7-26 13564 Siskiyou Between Big Flat and Caribou Gulch Comment
  RSA264991  Hieracium albiflorum G. L. Clifton 1975-7-28 5723 Siskiyou Near Cook and Green Pass near the Seiad Valley 1646 Comment
  JEPS36677  Hieracium albiflorum Geo. D. Butler 1908-7-20 330 Siskiyou w side Humbug Mountain Comment
  RSA215640  Hieracium gracile Gilbert Muth 1969-8-8 1291 Siskiyou Gap Meadow, Boulder Peak Ridge. 2287 Comment
  UC1408810  Hieracium greenei Frederick W. Oettinger 1968-9-3 688 Siskiyou English Peak; Marble Mountain Wilderness Area 2011 Comment
  HSC61786  Hieracium greenei Ruby Van Deventer Siskiyou Poker Flat 1585 Comment
  UC642567  Hieracium horridum unknown 1938-9-8 11604 Siskiyou on ridges between Horse Camp and Panther Creek; Mount Shasta 2743 Comment
  UC194096  Hieracium horridum unknown 1874-9-1 Siskiyou Shasta 3657 Comment
  CAS-BOT-BC316020  Hieracium nudicaule John Thomas Howell 1934-7-4 12389 Siskiyou Se. corner of Siskiyou Co. Comment
  HSC76864  Hieracium scouleri K. T. Stillman 1976-9-9 478 Siskiyou Marble Mountain Wilderness Area. Big Rock Camp- Elk Valley Trail 1921 Comment
  HSC36470  Hieracium scouleri J. O. Sawyer 1969-8-18 1986 Siskiyou Along S Sugar Creek 1921 Comment
  CAS-BOT-BC320104  Hieracium triste J. M. Tucker; L. K. Mann 1963-8-19 3783 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area 1920 Comment
  CDA30919  Hirschfeldia incana M. Beyers, G. F. Hrusa 2010-8-18 703 Siskiyou Highway 96; Sluice Box Klamath River Access. 556 Comment
  HSC100272  Holodiscus discolor J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13066 Siskiyou Klamath National Forest, road to Crater Lake off Forest Service Road 40N24. 2003 Comment
  HSC44722  Holodiscus discolor J. O. Sawyer, E. Cope 1977-6-18 2907 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  JEPS45038  Holodiscus discolor Geo. D. Butler 1908-7-19 494 Siskiyou Humbug Comment
  RSA760953  Holodiscus discolor Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63384 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 1768 Comment
  CAS-BOT-BC152363  Holodiscus discolor var. discolor Gilbert Muth 1965-8-3 s.n. Siskiyou Down creek from Marble Valley Comment
  CAS-BOT-BC150137  Holodiscus microphyllus var. glabrescens 1902-9-7 s.n. Siskiyou Mt. Shasta - Horse Camp Comment
  POM141569  Holodiscus microphyllus var. glabrescens E. B. Copeland 1903-10-11 6443 Siskiyou Mt. Eddy Comment
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Jan 23 2011
  CAS-BOT-BC94844  Holodiscus microphyllus var. microphyllus R. C. Wenk 2005-7-15 210 Siskiyou Trinity Alps, above South Fork of the Salmon River, along Yellow Rose Mine trail 2133 Comment
  RSA555250  Holodiscus microphyllus var. microphyllus Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38989 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
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Sep 13 2009
  CAS-BOT-BC388568  Holosteum umbellatum John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-28 53372 Siskiyou Grenada 792 Comment
  CHSC71295  Holosteum umbellatum subsp. umbellatum Vernon H. Oswald; Lowell Ahart 1998-6-11 9201 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. Meadow. 1402 Comment
  HSC81976  Hordeum brachyantherum Thomas W. Nelson, Jane P. Nelson 1979-6-16 4863 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  JEPS70551  Hordeum marinum subsp. gussoneanum Geo. D. Butler 1909-5-21 822 Siskiyou near Yreka Comment
  NY436002  Horkelia brownii H. E. Brown 1897-7-15 530 Siskiyou South side Mt. Shasta. 1524.0 Comment
  JEPS95829  Horkelia daucifolia Vernon H. Oswald and Lowell Ahart 1999-7-5 9807 Siskiyou Gazelle Mtn., on road 41N03, 0.2 mi SE of Gazelle-Callahan Hwy. 1508 Comment
  UC485548  Horkelia daucifolia F. W. Hooper Apr. 1897 Siskiyou Little Shasta Comment
  RSA14934  Horkelia daucifolia J. T. Howell 1934-4-20 1752 Siskiyou Near Yreka on Fort Jones Road Comment
  CHSC69088  Horkelia fusca subsp. parviflora Vernon Oswald; Lowell Ahart 1997-7-28 8800 .1 Siskiyou Pumice Stone Well 0.2 mi south of Medicine Lake Rd. on Forest Route 15. At the edge of a meadow. 1905 Comment
  UC1586969  Horkelia fusca subsp. parviflora Juha Pykala and D. H. Norris 1987-7-7 2394 Siskiyou 3 rd mi from junction of rds 15 and 49 (towards Medicine Lake, Camp Two Road) Comment
  UC453995  Horkelia fusca subsp. parviflora I. J. Condit 1911-7-15 Siskiyou McCloud Comment
  JEPS102922  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1983-7-29 7527 Siskiyou Scott Mountain Summit campground; Scott Mountain 1645 Comment
  CAS-BOT-BC201124  Hosackia crassifolia J. F. Emmel 1968-7-17 87 Siskiyou W slope of Spring Hill, near town of Mt. Shasta Comment
  CAS-BOT-BC201132  Hosackia crassifolia Doris K. Kildale 1929-7-20 8720 Siskiyou Raspberry Lake, near head South Fork Indian Creek 1828 Comment
  UC705694  Hulsea nana Marion Ownbey and Fred G. Meyer 1940-7-4 2192 Siskiyou on ridge above the head of Brewer Creek; Mt. Shasta Comment
  POM73770  Hydrophyllum capitatum var. alpinum Geo. D. Butler 1910-5-10 1324 Siskiyou Goosenest foothills 1677 Comment
  POM74210  Hydrophyllum fendleri var. albifrons Geo. D. Butler 1910-7-9 1720 Siskiyou Wooly Creek. 1677 Comment
  CAS-BOT-BC312847  Hymenoxys lemmonii Alice Eastwood; John Thomas Howell 1936-6-13 2751 Siskiyou 6 miles n. of Weed Comment
  HSC2235  Hymenoxys lemmonii Geo. D. Butler 1910-7-4 1640 Siskiyou Shasta River Comment
  UC19049  Hypericum formosum var. scouleri F. W. Morse July 1886 Siskiyou near Mt.Shasta Comment
  HSC27647  Hypericum perforatum Carl W. Mize 1972-6-8 3 Siskiyou Along main trail 335 Comment
  CHSC1031  Iliamna bakeri V. Holt 1932-7-17 Siskiyou Mt. Shasta Flats. 1158 Comment
  JEPS104998 Image available Iliamna bakeri Dean W. Taylor 1996-7-25 15834 Siskiyou Scott Mtns., on watershed divide between Crater Creek drainage and Mountain House Creek drainage (about 15 air miles west of Weed); Klamath National Forest. 1645 Comment
  UC1576732 Image available Iliamna bakeri Dean Wm. Taylor, Glenn L. Clifton, and R. Doug Stone 1987-8-6 9244 Siskiyou About 100 m s Lava Tank (extreme northeastern portion of County, Hambone Island region. 1219 Comment
  UC643276  Iliamna bakeri W. Bridge Cooke 1940-6-28 15193 Siskiyou in chaparral along Memorial Highway; Mount Shasta Comment
  HSC42160  Ipomopsis aggregata J. D. Mastrogiuseppe 1974-9-2 166 Siskiyou W slope of ridge of Red Rock Mtn. 2134 Comment
  JEPS802  Ipomopsis aggregata W. L. Jepson 1937-7-30 18566 Siskiyou Poker Flat Siskiyou Mtns (headwaters of Indian Creek) 1584 Comment
  UC1408777  Ipomopsis aggregata Frederick W. Oettinger and R. F. Thorne 1969-8-8 1282 Siskiyou near English Lake Salmon Mountains, Marble Mountain Wilderness Area (upper edge of Sundew Bog) 1828 Comment
  UC195395  Ipomopsis aggregata A. A. Heller 1914-8-26 11720 Siskiyou Weed 1066 Comment
  HSC22108  Ipomopsis aggregata J. O. Sawyer 1969-7-16 1126 Siskiyou SW-facing slope W of Russian Lake 2210 Comment
  CHSC26181  Ipomopsis aggregata subsp. formosissima J. P. Kroessig 1977-8-5 49 Siskiyou Roadside, s of jct of Everitt Memorial Hwy and McBridge Springs Campground access road, ca 4.5 km n of Mt Shasta City. 1460 Comment
  RSA17694  Ipomopsis congesta Elmer I. Applegate 1935-6-10 9488 Siskiyou South cinder slope of Caldwell Butte, Lava Beds National Monument Comment
  UC643293  Ipomopsis congesta W. Bridge Cooke 1940-6-27 15202 Siskiyou in brush field in the Lava Park along old logging rd leading up Mount Shasta from Hotlum Station on the n side Mount Shasta 1371 Comment
  RSA135892  Iris missouriensis Lee W. Lenz 1953-5-15 18306 Siskiyou 1 mile from Fort Jones, road to Etna 838 Comment
  HSC76882  Iris tenuissima K. T. Stillman 1976-6-27 142 Siskiyou Marble Mtn. Wilderness Area, near Bear Lake Comment
  UC844949  Iris tenuissima unknown 1941-6-6 16015 Siskiyou e base Mt. Eddy Comment
  CAS-BOT-BC376182  Isatis tinctoria Andrew Townesmith; Karen M. Meyer 2007-8-3 896 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
  CHSC96035  Isatis tinctoria L. P. Janeway 2006-7-3 8768 A Siskiyou Klamath Ranges. Salmon Mountains; southwest side of Taylor Lake Trailhead Road 0.8 km south of the main road; south-facing bowl at the head of Taylor Creek. 1804 Comment
  CHSC114666  Isatis tinctoria D. B. Joley 1976-6-24 Siskiyou Lake Siskiyou. Comment
  RSA299460  Isatis tinctoria J. P. Smith 1973-5-5 6526 Siskiyou Scott Bar along the Scott River. Comment
  SEINET13762151 Image available Isatis tinctoria T. C. Fuller unknown s.n. Siskiyou Scott Valley Comment
  HSC34263  Isoetes occidentalis J. P. Smith, J. O. Sawyer 1973-8-14 7316 Siskiyou Around Cliff Lake 1860 Comment
  UC118418  Isopyrum stipitatum Thos. Howell April 1888 18 Siskiyou Hornbrook Comment
  CDA24281  Isopyrum stipitatum F. D. Horn 1978-3-1 Siskiyou West of Hawkinsville, along North Humbug Road, north of Yreka. 0 Comment
  NY353429  Isopyrum stipitatum E. L. Greene 1876-4-10 689 Siskiyou Near Yreka Comment
  HSC72377  Ivesia gordonii var. ursinorum J. P. Smith, L. Barker, J. Cole, Jennifer Whipple 1976-7-28 8958 Siskiyou Sikiyou-Trinity county line, summit of Mt. Eddy 2752 Comment
  CDA42385  Juncus articulatus Jodi Aceves 2014-8-15 PDR# 470 P06027656 Siskiyou 0 Comment
  HSC74839  Juncus bolanderi J. P. Smith, J. O. Sawyer 1978-7-3 10008 Siskiyou Williams Point along the Klamath River S of Hwy. 96 Comment
  CHSC40143  Juncus ensifolius L. P. Janeway 1983-8-26 613 Siskiyou At Poker Flat. Northwest part of the meadow near the dirt road. 1524 Comment
  CHSC71609  Juncus ensifolius Vernon H. Oswald; Lowell Ahart 1998-8-3 9421 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
  JEPS24611  Juncus ensifolius Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-8-31 6764 Siskiyou in the 1.5 mi stretch between Shasta Retreat (at n outskirts of Dunsmuir) to Mossbrae Falls and Shasta Springs (along S.P. (Shasta Route) railway grade); Upper Sacramento River Canyon 731 Comment
  HSC36556  Juncus exiguus J. O. Sawyer 1969-6-12 914 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC30708  Juncus hemiendytus var. hemiendytus Frederick W. Oettinger 1969-8-15 1386 Siskiyou Marble Mtn. Wilderness Area, inlet of Upper English Lake 1768 Comment
  UCSB63785  Juncus kelloggii Oswald, Vernon; Ahart, Lowell 1998-7-21 Siskiyou Northeast of Weed; east of Grass Lake; and west of Bray on Old State Highway; 0.8 mi east of Tennant Rd; T44N R1W SW'/i Sect. 20 1417 Comment
  HSC96555  Juncus mertensianus Gordon Leppig, J. Kalt 1996-7-10 380 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  RSA238908  Juncus nevadensis Frederick W. Oettinger 1969-7-31 1115 Siskiyou At sundew bog on SE-facing gradual slope due west of the English Lake main campsite. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  HSC69355  Juncus nevadensis var. nevadensis Maralyn A. Renner 1980-8-21 2565 Siskiyou Kidd Creek 2043 Comment
  LA20060  Juncus nevadensis var. nevadensis F. J. Hermann; 1940-7-5 15284 Siskiyou Mt. Shasta, Wagon Camp meadow 1737 Comment
  RSA233691  Juncus orthophyllus Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38952 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  UC1265304  Juncus parryi Frederick W. Oettinger 1968-9-8 781 Siskiyou near outlet of English Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1752 Comment
  CAS-BOT-BC80905  Juniperus Marcus E. Jones 1926-1-20 s.n. Siskiyou Yaqui Well, Colorado Desert Comment
  HSC4853  Juniperus communis var. saxatilis J. O. Sawyer 1968-7-9 405 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  CAS-BOT-BC81224  Juniperus occidentalis Alice Eastwood 1912-7-20 1264 Siskiyou Hornbrook Comment
  CAS-BOT-BC81240  Juniperus occidentalis Elmer I. Applegate 1907-9-1 3307 Siskiyou Thrall, Shasta Valley, near Klamath River Comment
  NY20176  Juniperus occidentalis A. A. Heller 1938-7-12 15262 Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SEINET10531160  Juniperus occidentalis Jeffrey Huber 1971-6-9 Huber 268 Siskiyou 3 mi N of Weed, on US Hwy 97; S facing 20.00 slope; roadside; in Pinus ponderosa, and P. jeffreyi, and Artemisia tridentata and Purshia. 1128 Comment
  POM148750  Juniperus occidentalis var. occidentalis J. B. Feudge 1927-8-11 1618 Siskiyou Hornbrook Comment
  RSA240064  Juniperus occidentalis var. occidentalis Frederick W. Oettinger 1969-8-25 1558 Siskiyou Ft. Jones. Salmon Mountains. The high lake basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 915 Comment
  UC1045255  Keckiella lemmonii unknown 1940-8-8 15424 Siskiyou lower canyon, above the big spring Squaw Valley Creek; Mount Shasta Comment
  UC60949  Keckiella lemmonii Geo. B. Grant Sep 1902 4189 Siskiyou Dunsmuir Comment
  CHSC25093  Kelloggia galioides J. E. Bowlin 1967-7-18 68 Siskiyou On roadside, ca. 8.5 mi W of Mount Shasta Ski Bowl. 1554 Comment
  HSC67775  Kelloggia galioides J. O. Sawyer, J. Cole 1980-7-21 3887 Siskiyou Near Haight Mtn. along USFS Rd. running S-SW 1939 Comment
  UC164422  Kelloggia galioides Geo. D. Butler 1910-7-3 1631 Siskiyou Goosenest foothills 1219 Comment
  RSA0087948  Kopsiopsis strobilacea Marion Ownbey, Fred G. Meyer 1940-7-7 2220 Siskiyou Summit of Cayenne Ridge, Marble Mountain. Comment
  CAS-BOT-BC340379  Kyhosia bolanderi Dr. E. B. Copeland August 15, 19 3 3882 Siskiyou Sisson 1066 Comment
  HSC41075  Kyhosia bolanderi J. O. Sawyer 1969-9-11 2017 Siskiyou Behind Sugar Lake 2073 Comment
  POM30798  Lagophylla ramosissima Geo D. Butler 1910-6-2 1448 Siskiyou Yreka. Comment
  RSA406668  Lathyrus Louis C. Wheeler 1934-6-8 2662 Siskiyou Beaver Creek. 1220 Comment
  UC1258450  Lathyrus nevadensis var. nevadensis Maralyn A. Renner 1980-6-26 1177 Siskiyou n edge Flint Valley; Klamath National Forest, Dillon Mtn. Quad. 1389 Comment
  UCD115326  Lepidium appelianum B. Gormau 1926-6-1 s.n. Siskiyou White Mt. Ranch. Comment
  CDA36979  Lepidium campestre CDFA Staff 12 Siskiyou Mt. Shasta. 0 Comment
  SEINET7042781  Lepidium campestre A. G. Vestal 1955-5-17 s.n. Siskiyou Scott Valley, 0.8 mile north of Etna on route 3. Etna quadrangle UTM Zone 10, 508563mE, 4590750mN. Comment
  CAS-BOT-BC89838  Lepidium nitidum L. E. Smith 1913-4-2 s.n. Siskiyou Hornbrook Road to Klamathon. Comment
  UC856584  Lepidium virginicum A. A. Heller 1916-8-24 12561 Siskiyou near Sisson 1074 Comment
  UCD115871  Lepidium virginicum A. A. Heller 1916-8-24 12561 Siskiyou Near Sisson. 1074 Comment
  HSC58934  Leptosiphon harknessii Marvin Butler 1971-7-21 190 Siskiyou Near Bell Echo Camp, close to town of Cave Junction 1433 Comment
  POM259004  Leptosiphon harknessii C. L. Hitchcock, J. S. Martin 1939-7-6 5214 Siskiyou on Takilma-Happy Camp Road 1677 Comment
  HSC45976  Leptosiphon rattanii J. P. Smith 1973-5-5 6556 Siskiyou Scott Bar along the Scott River Comment
  SEINET12006370  Lesquerella occidentalis H. P. Chandler 1901-1 1653 Siskiyou Marble Mountain 2438 Comment
  JEPS53797  Lesquerella occidentalis subsp. occidentalis W. L. Jepson 1907-7-5 2835 Siskiyou Marble Mt. Comment
  CDA14217  Lessingia nemaclada G. F. Hrusa 1997-9-18 14103 Siskiyou Intersection of Hwy 3 & Callahan/Gazelle Rd., Comment
  JEPS20610  Lessingia nemaclada W. L. Jepson 1914-8-14 6168 Siskiyou Dunsmuir 670 Comment
  JEPS20647  Lessingia nemaclada Geo. D. Butler 1908-8-2 341 Siskiyou Greenview Scott Valley Comment
  UC1287439  Lessingia nemaclada Willard Spence 1960-9-7 619 Siskiyou Route 99 at s city limits Dunsmuir Comment
  UC306184  Lessingia nemaclada G. B. Grant 1902-9-11 5213 Siskiyou Dunsmuir Comment
  UC637134  Lessingia nemaclada Edward Lee 1934-8-11 1041 Siskiyou e of mouth of Walker Creek (a tributary of the Klamath River, e end o Seiad Valley); Seiad Valley, Klamath River 441 Comment
  POM41722  Lessingia nemaclada Geo. D. Butler 1908-8-2 341 Siskiyou Oro Fino Comment
  RSA44881  Lessingia nemaclada J. C. Roos 1948-9-1 3938 Siskiyou Fort Jones Comment
  CDA39355  Leucocrinum montanum F. D. Horn 1976-5-7 s.n. Siskiyou Grenada, Shasta Vista Estates. 0 Comment
  HSC30488  Leucothoe davisiae Frederick W. Oettinger 1968-8-1 347 Siskiyou Marble Mountain Wilderness Area, N end of Little Hancock Lake 2043 Comment
  HSC4873  Leucothoe davisiae J. O. Sawyer 1968-6-25 306 Siskiyou NE of N Horse Range Lake 2012 Comment
  SEINET2030161 Image available Leucothoe davisiae Lester Rowntree 1937-7-26 s.n. Siskiyou Caribou Lakes Comment
  HSC46724  Lewisia cotyledon J. T. Howell 1937-7-25 13474 Siskiyou Caribou Basin, Salmon-Trinity Alps 1982 Comment
  RSA237467  Lewisia cotyledon Frederick W. Oettinger 1968-8-5 411 Siskiyou NE slope below English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2210 Comment
  CAS-BOT-BC444042  Lewisia cotyledon var. cotyledon Lester Rowntree 1937-7-27 s.n. Siskiyou Caribou Lakes, Siskiyou Lakes [County?] Comment
  SEINET5336465  Lewisia cotyledon var. howellii G. Butler 1910-6-5 1527 Siskiyou Loy Lake. Comment
  HSC78204  Lewisia leeana L. P. Janeway 1983-7-3 364 Siskiyou Ridgetop NW of Poker Flat (Siskiyou crest) 1585 Comment
  SEINET11942481  Lewisia leeana H. P. Chandler 1901-1 1609 Siskiyou near Marble Mountain, North Coast Ranges 2286 Comment
  SEINET5324940  Lewisia leeana G. Butler 1910-8-8 1687 Siskiyou Shackleford Creek Comment
  UC1005598  Lewisia nevadensis Frank W. Gould 1940-5-15 1233 Siskiyou Bull Meadows Goosenet Mountain 152 Comment
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  RSA238300  Lewisia nevadensis Frederick W. Oettinger 1969-7-10 949 Siskiyou On NW of Lower English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA601895  Lewisia triphylla L. C. Wheeler 1935-7-23 3686 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Mud Springs, Middlehell Creek. 2011 Comment
  RSA603020  Leymus triticoides L. C. Wheeler 1935-7-13 3662 Siskiyou Ager 793 Comment
  UCD65622  Leymus triticoides Geo. D. Butler 1908-7-3 472 Siskiyou Dry banks near Yreka. Comment
  UCD88001  Leymus triticoides H. S. Yates 1936-6-21 5814 Siskiyou 6 miles N of Gazelle. 792 Comment
  RSA237412  Ligusticum californicum Frederick W. Oettinger 1967-8-13 252 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
  RSA453855  Ligusticum grayi L. C. Wheeler 1934-8-9 3090 Siskiyou Siskiyou Mountains: Head of Jaynes Canyon. 1981 Comment
  HSC22274  Lilium kelleyanum J. O. Sawyer 1969-7-26 1580 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  HSC91458  Lilium kelleyanum Jennifer Whipple 1976-7-24 1570 Siskiyou Dobkins Lake 2073 Comment
  JEPS66424  Lilium kelleyanum L. R. Heckard and P. Rubtzoff 1971-8-1 2686 Siskiyou 4 mi below summit of Mt. Eddy ridge (road from Stewarts Springs to The Eddys) 1584 Comment
  UC54711  Lilium pardalinum Harley P. Chandler Jun 1901 1717 Siskiyou Shackleford Canyon; North Coast Ranges 1828 Comment
  HSC77932  Lilium pardalinum subsp. wigginsii D. K. Imper 1982-7-22 1499 Siskiyou Near Beans Camp 1280 Comment
  RSA211346  Lilium washingtonianum William J. Ferlatte 1966-8-4 296 Siskiyou Yellow Rose Mine. 1982 Comment
  SEINET3887245  Lilium washingtonianum Alv Dan Youngberg 1964-7-17 86 Siskiyou Humbolt Meridian.; 0 1067 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
  CAS-BOT-BC133016  Lilium washingtonianum subsp. purpurascens H. A. Thomas; J. H. Thomas 1954-7-25 4543 Siskiyou Salmon - Trinity Mts., below Rush Creek Meadow along Rush Creek, about 8 miles E of Cecilville 1828 Comment
  CAS-BOT-BC133109  Lilium washingtonianum subsp. washingtonianum Wayne Roderick 1967-7-28 s.n. Siskiyou Southwest side of Mt. Shasta, type locality 1371 Comment
  JEPS86087  Lilium washingtonianum subsp. washingtonianum Wayne Roderick 1966-6-27 Siskiyou a short way out Mt. Shasta (town) (along highway to Panther, Meadow Ski Area) 1371 Comment
  RSA600380  Limnanthes alba Louis C. Wheeler 1935-5-18 3501 Siskiyou Siskiyou Mountains; Yreka Creek (Mt. Diablo Mer.) 854 Comment
  CDA40059  Linanthus bolanderi F. D. Horn 1978-4-9 s.n. Siskiyou Horn Ranch, Etna. 0 Comment
  UCSB29033  Linanthus ciliatus var. ciliatus C. Hardham 1961-6-30 8013 Siskiyou NEAR WHITE MOUNTAIN 1828 Comment
  JEPS25586  Linanthus harknessii Rimo Bacigalupi 1959-7-2 7218 Siskiyou near n base of Caribou Mtn. (and just s of low divide (Trinity Co. boundary) separating Coffee Creek drainage from that of the Salmon River, Big Flat Campground, headwaters); South Fork of the Salmon River, Big Flat Campground 1508 Comment
  HSC4866  Linnaea borealis subsp. longiflora J. O. Sawyer 1968-6-25 335 Siskiyou 1646 Comment
  HSC44590  Linnaea borealis subsp. longiflora Laura Witherspoon 1977-7-16 Siskiyou Copper Creek Area. 1128 Comment
  RSA0087562  Linnaea borealis subsp. longiflora Frederick W. Oettinger 1969-8-9 1319 Siskiyou Salmon Mountains: vicinity of English Peak, Marble Mountain Wilderness Area. Stream crossing approx. 0.6 mi. before the last crossing of the North Fork River en route up to Abbotts Upper Cabin on the main trail. 1356 Comment
  JEPS12683  Linnaea borealis var. longiflora Ruby Van Deventer 1938-7-31 194 Siskiyou w side Poker Flat Woods; w side Poker Flat Woods 1219 Comment
  UC889483  Linnaea borealis var. longiflora L. E. Smith 1913-7-12 458 Siskiyou Downeys Mill Comment
  RSA68921  Listera convallarioides A. E. Culbertson 1943-8-12 36 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles southwest of Mt. Shasta on north side of a 6600 eastern spur of Trinty Mountains; 2000 above Sacramento River within 10 air miles of its headwaters to the west 1657 Comment
  UC4707  Listera convallarioides C. B. Bradley 1897-1 Siskiyou Comment
  JEPS82462  Lithophragma heterophyllum Gilbert Muth 1966-7-14 385 Siskiyou Marble Gap Trail slopes above Marble Valley (Marble Mt. Wilderness Area); , slopes above Marble Valley 1813 Comment
  SBBG30540  Lithophragma parviflorum D. Myrick 1968-6-25 2010 Siskiyou Mountain Meadow Ranch, Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  CAS-BOT-BC325940  Lithospermum californicum D. E. Breedlove 1962-6-10 3303 Siskiyou Along Indian Creek Road, 15.6 miles NW of Happy Camp. 975 Comment
  HSC82205  Lithospermum ruderale Thomas W. Nelson, Jane P. Nelson 1980-7-5 5970 Siskiyou Fowler's Campground 1006 Comment
  UC1001183  Lomatium californicum Dorothy Parker 1953-5-12 528 Siskiyou w. side Scott Valley; Siskiyou Mts., Scott Valley 883 Comment
  POM133077  Lomatium dissectum var. dissectum Geo. D. Butler 1909-5-8 746 Siskiyou Yreka Hills. Comment
  UC1424943  Lomatium dissectum var. multifidum Frederick W. Oettinger 1969-7-9 946 Siskiyou slope nw Upper English Lake (high lake basins in vicinity of Eanglish Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1844 Comment
  JEPS84043  Lomatium macrocarpum L. R. Heckard with J. Hickman et al. 1986-7-17 6454 Siskiyou ca. 5 mi. n. town of Seiad Valley (ridge e. of Kangaroo Peak, s. of Lily Pad Lake) 1900 Comment
  CDA38464  Lomatium macrocarpum T. C. Fuller 1958-6-19 1799 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  RSA237411  Lomatium macrocarpum Frederick W. Oettinger 1969-7-11 986 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
  RSA237416  Lomatium macrocarpum Frederick W. Oettinger 1969-7-11 987 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
  RSA78821  Lomatium macrocarpum P. A. Munz 1952-7-2 17899 Siskiyou Baldy Mountain ca. 6 miles west (by air) of Happy Camp. 1738 Comment
  HSC46187  Lomatium nevadense Jennifer Whipple 1977-4-30 1883 Siskiyou Scott Valley near Weston Gulch 854 Comment
  RSA48583  Lomatium nudicaule P. A. Munz 1949-5-18 13305 Siskiyou South of Callahan on road to Trinity Center 1524 Comment
  JEPS177  Lomatium peckianum Geo. D. Butler 1909-4-14 638 Siskiyou Block 5 Yreka Comment
  LA53040  Lomatium peckianum Lincoln Constance; Emil diFulvio 1962-4-17 3751 Siskiyou 5.2 mi. S of Yreka 792 Comment
  RSA30650  Lomatium vaginatum Lincoln Constance, Reed Rollins 1942-5-14 2924 Siskiyou Road to Walker Post Office, 4 miles W of Yreka. 1220 Comment
  RSA75604  Lonicera ciliosa Albert M. Vollmer, L. Beane 1951-6-2 s.n. Siskiyou Happy Camp, Klamath River Hwy. Comment
  SEINET3154550  Lonicera ciliosa G. D. Butler 1910-5-23 1395 Siskiyou Humbug mountain 1219 Comment
  HSC96411  Lonicera conjugialis Gordon Leppig, J. Kalt 1996-7-9 360 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  JEPS82466  Lonicera conjugialis Gilbert Muth 1966-7-8 378 Siskiyou Marble Valley Marble Mt. Wilderness Area 1792 Comment
  CAS-BOT-BC240639  Lonicera hispidula P. C. Everett; E. K. Balls 1959-10-24 23943 Siskiyou 3 mi. sw. from Red Bank F.S. Camp along road from Sawyers Bar to Somesbar [Somes Bar] 518 Comment
  CDA15534  Lotus crassifolius G. F. Hrusa 1998-7-5 14702 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.8. Comment
  UC375402  Lotus crassifolius var. crassifolius Geo. D. Butler 1909-5-31 775 Siskiyou Humbug Creek Comment
  UC69539  Lotus nevadensis var. nevadensis T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  RSA406231  Lotus oblongifolius var. nevadensis Bonnie C. Templeton 1957-6-21 7749 Siskiyou Near the summit of Mt. Scott. Comment
  CAS-BOT-BC140211  Luetkea pectinata Ken Berg; Stephanie Bennett 1986-8-25 639 Siskiyou Salmon-Trinity Alps Wilderness, Headwaters of Little South Fork of Salmon River; above Little S. Fk. Lake 2286 Comment
  HSC69245  Luetkea pectinata Maralyn A. Renner 1980-9-1 2710 Siskiyou S side of Devil's Punchbowl 1829 Comment
  RSA624978  Luetkea pectinata Louis C. Wheeler 1963-8-25 8274 Siskiyou Preston Peak: Summit ridge. 2134 Comment
  CAS-BOT-BC342563  Luina hypoleuca John Thomas Howell 1939-8-6 15104 Siskiyou Elk Mt., Marble Mts. Comment
  CAS-BOT-BC198360  Lupinus Elmer I. Applegate 1923-9-6 3940 Siskiyou Klamath River about 20 miles below the mouth of Shasta River Comment
  UCD105875  Lupinus albicaulis W. A. Williams 1957-7-23 57 S Siskiyou Siskiyou-Trinity County line. Deadfall Creek Shasta National Forest (e. of Mt. Eddy). 2011 Comment
  SEINET10544018  Lupinus albicaulis subsp. shastensis William B. Cooke 1938-7-29 Cooke 11388 Siskiyou Mt. Shasta, chaparral 1219 Comment
  UC965448  Lupinus albicaulis var. shastensis A. A. Heller 1915-7-18 12117 Siskiyou Metcalf's ranch Mt. Eddy (ne base of mt.) 1188 Comment
  HSC42148  Lupinus albifrons S. Saufferer 1973-5-6 153 Siskiyou Just S of Dunsmuir on gravelly flats along Railroad Creek Comment
  CAS-BOT-BC196319  Lupinus albifrons var. flumineus D. B. Dunn; B. J. Cox 1971-6-9 17937 Siskiyou 9 mi. N. of Weed, on U.S. Hwy 97, at Whitney Creek 1219 Comment
  CAS-BOT-BC196324  Lupinus albifrons var. flumineus Charles Piper Smith 1947-6-18 47514 Siskiyou Highway 97. 0.5 miles east of Whitney Creek Bridge Comment
  POM10798  Lupinus albifrons var. flumineus E. B. Copeland 1903-7-3 3527 Siskiyou Klamathon Comment
  UC156976  Lupinus arbustus Geo. D. Butler 1909-6-22 917 Siskiyou Goosenest foothills Comment
  SEINET10871220  Lupinus arbustus subsp. silvicola Charles Piper Smith 1947-5-13 Smith 47276 Siskiyou 6.3 miles e of weed. Hwy 97 Comment
  CAS-BOT-BC196353  Lupinus argenteus var. argenteus L. E. Smith 1914-5-14 695 Siskiyou Montague Comment
  RSA104707  Lupinus argenteus var. argenteus A. A. Heller 1905-6-9 8015 Siskiyou Montague Comment
  RSA60651  Lupinus aridus Dorothy Parker 1948-7-14 s.n. Siskiyou Scott Valley, 2 mi. from Etna. 671 Comment
  SEINET7042784 Image available Lupinus bicolor A. G. Vestal 1955-5-17 s.n. Siskiyou Scott Valley, 0.8 mile north of Etna on route 3. Etna quadrangle UTM Zone 10, 508563mE, 4590750mN. Comment
  HSC39441  Lupinus breweri J. O. Sawyer 1969-7-2 1027 Siskiyou Ridge S of Upper Albert Lake 2378 Comment
  CAS-BOT-BC215182  Lupinus croceus Alice Eastwood 1912-8-30 1991 Siskiyou Mount Eddy Comment
  CAS-BOT-BC215197  Lupinus croceus Christopher Davidson 1975-6-5 2681 Siskiyou 0.8 mile N of Scott Mountain Summit on Highway 3 1584 Comment
  CAS-BOT-BC215179  Lupinus croceus W. W. Eggleston 1915-8-11 11561 Siskiyou S Fork of Shasta River 1100 Comment
  UC1333310  Lupinus croceus Dorothy Parker 1949-5-26 Siskiyou along the Sugar Creek Road (above the Eaton Mine); Salmon Mountain Range, Sugar Creek Road 1676 Comment
  RSA413558  Lupinus densiflorus var. densiflorus E. E. Stanford 1930-6-16 1606 Siskiyou Near Hornbrook. Comment
  RSA372145  Lupinus klamathensis M. L. Conrad, David B. Dunn, P. Kenney 1973-6-2 6972 Siskiyou 1.1 mile from Interstate 5 on Highway 3, southwest of Yreka. 915 Comment
  SD125501  Lupinus klamathensis Melvin L. Conrad, D. B. Dunn, P. Kenney 1973-6-2 6972 Siskiyou 1.1 mile from I-5 on Hwy 3 SW of Yreka, in open exposed area, gravelly roadside 914 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
  SEINET10485431  Lupinus klamathensis Charles Piper Smith 1947-5-6 Smith 47207 Siskiyou Hornbrook, hwy 99. Roadside bank. Comment
  RSA78687  Lupinus lapidicola P. A. Munz 1952-7-2 17877 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1493 Comment
  HSC77065  Lupinus latifolius subsp. viridifolius K. T. Stillman 1976-8-7 199 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  POM10902  Lupinus latifolius subsp. viridifolius E. B. Copeland 1903-8-13 7306 Siskiyou Sisson Comment
  LA93396  Lupinus latifolius var. latifolius J. M. Tucker; 1974-7-28 4325 Siskiyou adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area 1462 Comment
  JEPS25582  Lupinus lepidus var. sellulus Rimo Bacigalupi 1959-7-2 7213 Siskiyou eastern outskirts of Weed 1066 Comment
  JEPS97000  Lupinus lepidus var. sellulus Dean W. Taylor 1999-8-12 17308 Siskiyou Mill Creek headwaters, Marble Mountains (ca. 4 miles W of Mugginsville, Quartz Valley) 1371 Comment
  SBBG8982  Lupinus lepidus var. sellulus H. and M. Dearing 1939-6-5 3552 Siskiyou McCloud 1066 Comment
  UC144596  Lupinus lepidus var. sellulus A. A. Heller 1905-6-1 7933 Siskiyou between Upper Soda Spring and Shasta Retreat; between Upper Soda Spring and Shasta Retreat Comment
  UCSB16731  Lupinus lepidus var. sellulus 1962-6-11 Siskiyou 7.4 miles southwest of Scott Bar 624 Comment
  RSA749105  Lupinus leucophyllus R. Riggins 1993-6-17 1687 Siskiyou Loose gravelly loam along CA 263, ca. 1 mi N jct. CA 96, 0.5 mi. S jct. I5 Comment
  UC1129549  Lupinus luteolus H. S. Yates 1936-6-21 5809 Siskiyou 1/2 mi ne Hilt; Yreka Quad. Comment
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Jun 18 2011
  SEINET8056947  Lupinus microcarpus G. D. Butler 1910-5-21 1373 Siskiyou Klamath hills. Comment
  CAS-BOT-BC383125  Lupinus obtusilobus Andrew Townesmith; Karen M. Meyer 2007-7-30 872 Siskiyou Shasta-Trinity National Forest. At the upper end of county road A10, mile 13.8 (from beginning of road in Mount Shasta City, 12.7 miles from National Forest boundary sign). Highest vehicle accessible point on Mount Shasta 2399 Comment
  SD60261  Lupinus onustus A. A. Heller 1927-5-14 14371 Siskiyou Spring Hill, near the town of Mt.Shasta Comment
  SD88330  Lupinus sellulus Darley F. Howe 1972-7-8 Siskiyou 11.5 miles north of Weed on Highway 97. 4000 Comment
  HSC77049  Lupinus sellulus subsp. ursinus K. T. Stillman 1976-7-7 170 Siskiyou Marble Mountain Wilderness Area 1982 Comment
  POM260225  Lupinus sellulus subsp. ursinus C. Leo Hitchcock, J. S. Martin, A. S. Hitchcock 1939-7-9 5323 Siskiyou 1/2 mile SE of Kings Castle, Marble Mts. 1829 Comment
  RSA183653  Lupinus sellulus var. lobbii Gilbert Muth 1965-8-12 211 Siskiyou 2/3 up meadow on back of Black Mountain. Comment
  SEINET10937145  Lupinus sellulus var. lobbii Billy Joe Cox, David B. Dunn 1971-6-9 Cox 2808 Siskiyou 3 mi n of weed, on u.s. Hwy 97. S-facing 20 degree slope; roadside; in pinus Ponderosa, p. Jeffreyi, and artemisia tridentata, and purshia. 1128 Comment
  SEINET10895575  Lupinus vallicola subsp. vallicola Katherine L. Morris, Melvin L. Conrad; David B. Dunn 1973-6-2 Morris 372 Siskiyou found along roadside . 7 mi S of junction at Etna Road on Hwy 3. Comment
  UCD141913  Luzula glabrata Jack Major; M. Fleschner and R. Pemble 1966-9-5 s.n. Siskiyou Along trail from Marble Mountain to Sky High Lake, east of Marble Mountain, Marble Mountains. 1975 Comment
  HSC61901  Luzula parviflora Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  JEPS40872  Luzula parviflora Paul C. Hutchison 1962-8-2 932 Siskiyou between Panther Meadow and top ski lift; Mount Shasta, bet Panther Meadow and top ski lift 2743 Comment
  JEPS67184  Luzula parviflora B. C. Goldsmith 1916-10-10 38 a Siskiyou Widow Creek Mount Shasta, Widow Creek Comment
  UCR142988  Luzula parviflora L. C. Wheeler 1934-6-18 2726 Siskiyou Siskiyou Mtns, [Spaulding Creek a tributary of] Cottonwood Creek 1311 Comment
  CAS-BOT-BC231460  Lycium barbarum Louis C. Wheeler 1934-11-4 3356 Siskiyou Scott Bar, Scott River, Marble Mts. 518 Comment
  CDA40731  Lycopus asper H. Christensen 1964-7-21 s.n. Siskiyou East side of Lower Sump, Modoc Wildlife Refuge. 0 Comment
  RSA237497  Madia bolanderi Frederick W. Oettinger, R. F. Thorne 1969-8-8 1296 Siskiyou Sundew Bog near English Lake. Salmon Mtns; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1829 Comment
  CAS-BOT-BC342671  Madia citriodora Geo. D. Butler 1910-5-17 1364 Siskiyou Yreka Comment
  CAS-BOT-BC344016  Madia elegans Carl B. Wolf 1927-8-26 1052 Siskiyou On the Klamath River, 3 mi. below Gottville Comment
  JEPS7384  Madia elegans Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sissons Region of the Upper Sacramento Comment
  UC89394  Madia elegans Brandegee 1887-7-1 Siskiyou Edgewood Comment
  CAS-BOT-BC343992  Madia elegans L. R. Abrams 1927-9-11 12147 Siskiyou Pacific Highway between Hilt and Hornbrook Comment
  POM56180  Madia elegans subsp. elegans E. B. Copeland 1903-8-13 3820 Siskiyou Sisson. 1067 Comment
  JEPS74479  Madia gracilis W. J. Ferlatte 1966-8-3 248 Siskiyou wooded area near public campground; Trinity Alps, Big Flat 1524 Comment
  JEPS40207  Madia gracilis Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sims to Sissons; Region of the Upper Sacramento Comment
  SEINET7040087  Madia minima A. G. Vestal 1963-6-1 s.n. Siskiyou Southeast of Dwinnell Reservoir [Lake Shastina]. Weed Quad. UTM Zone 10, 547726mE, 4593011mN. Comment
  UC89419  Madia sativa subsp. dissitiflora T. S. Brandegee July 1887 Siskiyou Sisson's Mt. Shasta, Sisson's Comment
  RSA96933  Mahonia aquifolium P. C. Everett, E. K. Balls 1954-10-12 20271 Siskiyou Beaver Creek from Dutch Creek south 0.5 mi. north of Walker. 549 Comment
  HSC18981  Maianthemum racemosum subsp. amplexicaule J. O. Sawyer 1969-8-4 1923 Siskiyou South Sugar Creek 2043 Comment
  HSC68441  Maianthemum racemosum subsp. amplexicaule Maralyn A. Renner 1980-7-4 1388 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  CAS-BOT-BC512767  Maianthemum racemosum subsp. amplexicaule Alice Eastwood 1912-7-23 1337 Siskiyou Cantara Comment
  RSA105353  Maianthemum racemosum subsp. amplexicaule G. D. Barbe 1955-7-6 136 Siskiyou Along northeast shore of Taylor Lake, Salmon Mtns. 1951 Comment
  HSC18914  Maianthemum stellatum J. O. Sawyer 1968-7-10 464 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  CAS-BOT-BC514183  Maianthemum stellatum Ira L. Wiggins 1955-7-23 13478 Siskiyou Banks of China Creek 1097 Comment
  UCR51831  Marah oregana L. C. Wheeler 1934-8-2 3026 Siskiyou Siskiyou Mtns, Jaynes Canyon. (Mt. Diablo Meridian) 1829 Comment
  POM211273  Marsilea vestita L. C. Wheeler 1934-10-14 3323 Siskiyou Siskiyou Mountains; Shasta River 2 miles below Yreka Creek. Mt. Diablo Meridian 671 Comment
  UC1738814  Melica aristata Dean Wm. Taylor, Glenn L. Clifton, R. Doug Stone 1987-8-5 9239 Siskiyou Porcupine Lake (a small vernal depression in an indurate lava flow) 1304 Comment
  HSC26105  Melica bulbosa J. P. Smith, J. O. Sawyer, Marilyn O'Meara 1972-7-3 5674 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  HSC76950  Melica bulbosa K. T. Stillman 1976-7-15 248 Siskiyou Marble Mountain Wilderness Area. Comment
  LA12125  Melica californica Jason Swallen; 1939-7-21 13735 Siskiyou Mount Shasta, above Wagon Camp 1767 Comment
  CAS-BOT-BC282073  Melica fugax John Thomas Howell 1937-7-21 13155 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  HSC30604  Melica harfordii Frederick W. Oettinger 1969-8-3 1143 Siskiyou Above English Lake, Salmon Mountains. 1829 Comment
  HSC15008  Melilotus albus D. M. Thomson 1965-7-1 121 Siskiyou Lava Beds National Monument, Cave Loop Dr., near hdq. parking lot Comment
  RSA60493  Melilotus albus John H. Thomas 1949-6-16 940 Siskiyou 10 miles north of Gazelle. Comment
  JEPS100299  Melilotus indicus Dean W. Taylor 2001-8-28 17907 Siskiyou 12 air mi NE of McCloud (Ash Creek Butte, western base of); Mount Shasta, upper Sacramento River watershed 1767 Comment
  HSC63584  Mentha canadensis J. P. Smith, Steve Selva 1970-8-7 4542 Siskiyou Jct. I-5 and Stewart Creek Rd. Comment
  JEPS63435  Mentha spicata Geo. D. Butler 1908-7-17 178 Siskiyou Butler's Ranch Yreka (Yreka) Comment
  SFV2373  Mentzelia albicaulis A. I. Richardson 1961-6-8 16 Siskiyou Big Springs Road, north of junction with Highway 97. 915 Comment
  HSC46768  Mentzelia dispersa William J. Ferlatte 1974-7-14 1526 Siskiyou Big Flat near S fork of the Salmon River, at edge of river below campground. 1509 Comment
  UCD117380  Mentzelia montana Dorothy Parker 1967-5-14 s.n. Siskiyou McConahue Gulch, Scott Valley. 1127 Comment
  CAS-BOT-BC428977  Micranthes ferruginea K. T. Stillman 1976-7-31 351 Siskiyou Marble Mountain Wilderness Area. East-facing ridge north from Black Mt. towards Jump off point. 2103 Comment
  UC1408868 Image available Micranthes marshallii Frederick W. Oettinger 1969-7-16 651 Siskiyou Base of precipice south of of Abbott's Lake; High Lake Basins in vicinity of English Peak; Marble Mountain Wilderness Area Comment
  CAS-BOT-BC429152  Micranthes odontoloma G. J. Muth 1969-8-12 1377 Siskiyou Second Valley Comment
  CAS-BOT-BC429255  Micranthes oregana W. R. Dudley 1893-6-19 s.n. Siskiyou Sisson's Meadows Comment
  POM33357  Micropus californicus var. californicus Geo D. Butler 1910-5-7 1297 Siskiyou Yreka. Comment
  HSC22288  Microseris nutans J. O. Sawyer 1969-7-3 1051 Siskiyou Near Lipstick Lake 1951 Comment
  RSA17746  Microseris nutans Elmer I. Applegate 1935-6-8 9417 Siskiyou Bear Paw Cave, Lava Beds National Monument. Comment
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Dec 17 2015
  HSC22489  Mimulus breweri J. O. Sawyer 1969-7-3 1048 Siskiyou Above Lipstick Lake 1951 Comment
  RSA119355  Mimulus breweri S. S. Tillett 1956-7-9 638 Siskiyou E. of Scott Mtn., s. end of small lake. Siskiyou -Trinity Co. Line. 8 mi. se. of Callahan 1829 Comment
  SEINET10570211  Mimulus breweri Mary Susan Taylor 1980-7-8 Taylor 3103 Siskiyou T39N R5W ne sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on NW side of Castle Lake, along edge of lake. 1615 Comment
  HSC76733  Mimulus guttatus K. T. Stillman 1976-7-14 240 Siskiyou Marble Mtn. Wilderness Area Comment
  RSA60479  Mimulus guttatus John H. Thomas 1949-6-16 947 Siskiyou 0.25 mile north of Beaver Creek Public Camp; 5 miles north of junction of Beaver Creek and Klamath River; Klamath National Forest. Comment
  POM43513  Mimulus guttatus Geo. D. Butler 1910-5-29 1423 Siskiyou Near Yreka. Comment
  UC2046560  Mimulus layneae William J. Ferlatte 1974-7-14 1521 Siskiyou lower slope of Grouse Ridge Comment
  UC1063154  Mimulus microphyllus L. Whitney 1934-6-24 7 Siskiyou Tennant Dorris Quadrangle, Antelope Creek 1463 Comment
  UC27016  Mimulus microphyllus Harley P. Chandler June 1901 1694 Siskiyou near Marble Mountain; North Coast Ranges 1524 Comment
  HSC61894  Mimulus moschatus Ruby Van Deventer 1939-7-18 Siskiyou Poker Flat 1585 Comment
  HSC36559  Mimulus moschatus J. O. Sawyer 1969-7-18 1379 Siskiyou Ridge above S Russian Creek 1921 Comment
  HSC90993  Mimulus nanus Jennifer Whipple 1976-7-1 1229 Siskiyou Near Little Crater Lake 2195 Comment
  POM147660  Mimulus nanus var. jepsonii Alice Eastwood 1912-7-16 1143 Siskiyou Mt. Cloud. Comment
  JEPS4010  Mimulus nanus var. nanus Geo. D. Butler 1909-7-15 928 Siskiyou Highland Mine Comment
  UC445180  Mimulus pilosus Dr. E. B. Copeland 1903-8-18 3830 Siskiyou Mt. Eddy 2286 Comment
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Sep 16 2010
  RSA82884  Mimulus primuloides J. M. Tucker 1950-7-24 1950 Siskiyou Beside Cold Creek at the Militry Road crossing about 6 miles northwest of Pilgrim Creek Experiment Station, east side of Mt. Shasta. Comment
  UCD122891  Mimulus primuloides var. linearifolius Dean William Taylor 1972-7-3 1603 Siskiyou At Cook and Green Pass. 1371 Comment
  HSC429  Mimulus pulsiferae William J. Ferlatte 1967-6-30 586 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  JEPS51480  Minuartia nuttallii subsp. gregaria W. L. Jepson Jul 17 1902-Jul 22 1902 2065 Siskiyou Devil's Backbone; w Siskiyou 1828 Comment
  UC135646  Minuartia nuttallii subsp. gregaria Dr. E. B. Copeland 1903-9-7 3870 Siskiyou Mt. Eddy 2133 Comment
  CAS-BOT-BC181110  Minuartia nuttallii var. gregaria C. L. Hitchcock; J. S. Martin 1939-7-7 5279 Siskiyou 1/2 mile below Sanger Peak Lookout 1524 Comment
  SEINET4856155  Minuartia stolonifera Unknown 1985-6-19 7839 Siskiyou Along south side of State Rt. 3, 3.1 m N of Scott Mountain Pass. 1220 Comment
  POM92177  Mitella breweri Geo. D. Butler 1908-8-8 219 Siskiyou Marble Valley. Comment
  CAS-BOT-BC433018  Mitella diversifolia Antone Q. Soares 1922-6-1 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC433073  Mitella trifida Doris K. Kildale 1928-7-4 5478 Siskiyou 3 miles west of summit on road from Sawyers Bar to Etna Mills Comment
  UC1053436  Moehringia macrophylla Rimo Bacigalupi and Arthur Holmgren 1950-4-24 3138 Siskiyou opposite town Dunsmuir (on e side of canyon, cliffs along Sacramento River); cliffs along Sacramento River, e side of canyon Comment
  CDA24065  Moehringia macrophylla Don Shaw 1980-5-16 Siskiyou McNeil Creek near Forks of Salmon. 0 Comment
  RSA0010760  Mollugo verticillata Louis C. Wheeler 1935-7-20 3676 Siskiyou Scott River 1.5 mi. W Fort Jones, Scott Valley. 823 Comment
  HSC22415  Monardella glauca J. O. Sawyer 1969-8-2 1677 Siskiyou SE facing slope above Little Duck Lake 1951 Comment
  HSC69290  Monardella odoratissima Maralyn A. Renner 1980-7-24 1947 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  HSC92974  Monardella odoratissima Jennifer Whipple 1976-8-21 1732 Siskiyou S face of Mt. Eddy draining into N Fork of the Sacramento River 2378 Comment
  IRVC16377  Monardella odoratissima Jerry A. Powell 1974-6-13 1158 Siskiyou Ash Creek Ranger Station. Sierra Mountains Comment
  CAS-BOT-BC222030  Monardella odoratissima subsp. glauca John Thomas Howell 1937-7-29 13652 A Siskiyou Scott Mt. between Trinity and Siskiyou counties Comment
  UC25494  Monardella odoratissima subsp. glauca J. W. Morse Jul 1886 Siskiyou Shasta Comment
  CAS-BOT-BC220369  Monardella odoratissima subsp. pallida A. A. Heller 1905-6-13 8018 Siskiyou Shasta Springs Comment
  CAS-BOT-BC222162  Monardella odoratissima subsp. pallida A. A. Heller 1915-8-26 12230 Siskiyou North side of Mt. Eddy 1981 Comment
  JEPS63423  Monardella odoratissima subsp. pallida W. L. Jepson 1937-7-30 18538 Siskiyou Summit Siskiyou Mts., near Poker Flat. 1554 Comment
  UC54604  Monardella odoratissima subsp. pallida H. M. Hall and E. B. Babcock June, 1903 4127 Siskiyou Dead Horse Canyon Sierra Nevada Mountains 1524 Comment
  CAS-BOT-BC222179  Monardella odoratissima subsp. pallida Gilbert Muth 1965-8-3 s.n. Siskiyou Marble Valley Comment
  CAS-BOT-BC220228  Monardella sheltonii A. M. Vollmer; L. Beane 1951-6-2 43 Siskiyou Klamath River Highway, betw. U.S. 99 & Gottville Comment
  RSA0022818  Monardella villosa Marion Ownbey, Fred G. Meyer 1940-7-5 2182 Siskiyou Well below timberline on east side of Mt. Shasta. Comment
  CAS-BOT-BC453478  Monotropa hypopitys Volney Rattan 1879-6-1 s.n. Siskiyou Klamath Comment
  JEPS43285  Montia parvifolia W. L. Jepson 1902-7-17 2066 Siskiyou Devil's Backbone, Trinity Summit to Salmon Summit (on boundary between Humboldt and Trinity Counties); Devil's Backbone Comment
  CAS-BOT-BC445206  Montia parvifolia H. A. Thomas; J. H. Thomas 1954-7-27 4549 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. South side of South Fork of Salmon River in vicinity of Blind Horse Creek and area 1 mile to SE. Right along Salmon River 975 Comment
  HSC27685  Montia parvifolia Carl W. Mize 1972-6-8 44 Siskiyou Along the trail 351 Comment
  HSC60462  Muhlenbergia andina William J. Ferlatte 1966-8-3 277 Siskiyou Josephine Lake basin 1677 Comment
  UCD86526  Muhlenbergia asperifolia A. A. Heller 1918-7-25 13082 Siskiyou Gravelly soil between Gazelle and Edgwood in the Shasta Valley. Upper Sonoran Life Zone. Comment
  UC204922  Muhlenbergia filiformis unknown 11704 Siskiyou near Deetz Station (6 mi n of Sisson) Comment
  UCD86584  Muhlenbergia filiformis AHM 1955-7-30 55 Z Siskiyou Klamath National Forest. Marble Mountains. Hamilton Camp. 1828 Comment
  CAS-BOT-BC275342  Muhlenbergia jonesii W. B. Cooke; V. G. Cooke 1966-7-17 37250 Siskiyou Along Military Pass Road, vicinity of Inconstance Creek, Mount Shasta 1828 Comment
  JEPS94378  Muhlenbergia richardsonis Vernon Oswald and Lowell Ahart 1997-7-28 8800 Siskiyou Pumice Stone Well 0.2 mi s of Medicine Lake Road on Forest Route 15 Pumice Stone Well; , Forest Route 15 1905 Comment
  RSA576952  Myosurus Louis C. Wheeler 1934-7-2 2840 Siskiyou Little Smoky Creek, Sterling Mt., Siskiyou Mts. 1280 Comment
  HSC30410  Narthecium californicum Frederick W. Oettinger 1969-7-31 1112 Siskiyou Marble Mtn. Wilderness Area, W of English Lake 1936 Comment
  HSC61789  Navarretia capillaris Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  POM74489  Navarretia intertexta Edward Palmer 1892-7-13 2451 Siskiyou Mt. Shasta and vicinity. Comment
  UC711846  Navarretia intertexta subsp. propinqua Roxana S. Ferris and Laura Lorraine 1941-8-11 10500 Siskiyou Grass Lake Station, on U.S. Highway 97 1554 Comment
  UC23429  Navarretia leptalea subsp. leptalea F. W. Morse July, 1886 Siskiyou at Shasta Comment
  RSA15791  Nicotiana bigelovii Carl B. Wolf 1927-8-26 1019 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  CAS-BOT-BC60568  Noccaea fendleri subsp. glauca Alice Eastwood 1912-8-30 2031 Siskiyou Mount Eddy. Comment
  CAS-BOT-BC60583  Noccaea fendleri subsp. glauca John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53446 Siskiyou 7 miles east of Callahan on road to Gazelle. 1173 Comment
  CAS-BOT-BC60570  Noccaea fendleri subsp. glauca Alice Eastwood 1923-5-23 11929 Siskiyou Cantara. Southern Pacific RailRoad. Comment
  UC595100  Nothochelone nemorosa David D. Keck 1938-8-6 4821 Siskiyou Poker Flat, on n slope just se of summit, Siskiyou Mountains Poker Flat; Siskiyou Mountains, Poker Flat 1402 Comment
  UCR37823  Nothochelone nemorosa K. T. Stillman 1976-8-8 396 Siskiyou Marble Mountain Wilderness Area Comment
  HSC29269  Nothochelone nemorosa Frederick W. Oettinger 1968-8-5 408 Siskiyou High Lake Basins: N of English Pk., leading down to Upper English Lake 1951 Comment
  RSA238797  Nothochelone nemorosa Frederick W. Oettinger 1967-7-30 211 Siskiyou Semi-shaded granite cliffs southwest of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  UC1238906  Nothochelone nemorosa Freed W. Hoffman 1950-7-11 3494 Siskiyou Cedar Camp Road 30.1 mi from Klamath Highway (western Siskiyou County); North Coast Ranges, Cedar Camp Road Comment
  UC922596  Nothochelone nemorosa Annie M. Alexander and Louise Kellogg 1948-9-8 5603 Siskiyou top of grade between Sawyers Bar and Etna (Siskiyou Mountains); Siskiyou Mountains 1737 Comment
  CAS-BOT-BC349961  Onopordum tauricum W. T. Parsons; T. C. Fuller 1960-7-26 4878 Siskiyou F. Voelker ranch, w. edge of Meiss Lake Basin, just s. of Sam's Neck, ca. 15 mi. s.e. of Dorris Comment
  SEINET13694638 Image available Onopordum tauricum T. C. Fuller 1960-7-26 s.n. Siskiyou Wedge Mesia Lake Basin, SW. of Doris Comment
  UC1222992  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1949-9-16 18571 Siskiyou on the road between Callahan and Trinity Center Scott Mountain 1615 Comment
  HSC19211  Orthilia secunda J. O. Sawyer 1968-9-9 670 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  HSC296  Orthilia secunda William J. Ferlatte 1966-8-17 394 Siskiyou Caribou Basin 2134 Comment
  HSC44587  Orthilia secunda Laura Witherspoon 1977-7-8 Siskiyou Periphery of Flint Valley 1341 Comment
  UC1190162  Orthilia secunda Ira L. Wiggins 1955-7-24 13495 Siskiyou Ridge between upper reaches of China & Blind Horse Creeks 1645 Comment
  UC1483529  Orthilia secunda John Palmer 1980-8-12 685 Siskiyou Condry Mtn. Southeast of Wards Gap. 1188 Comment
  SEINET3159726  Orthocarpus cuspidatus G. D. Butler 1910-6-19 1584 Siskiyou Goosenet foothills 1524 Comment
  JEPS29106  Orthocarpus cuspidatus subsp. copelandii Lauramay T. Dempster 1961-7-1 1823 Siskiyou along ridge from Condry Peak to White Mountain (main ridge, Siskiyou Mts., n of Horse Creek drainage); Siskiyou Mts., Horse Creek drainage, fr Condry Peak to White Comment
  JEPS84024  Orthocarpus cuspidatus subsp. copelandii L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6334 Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1/2 mi from of Red Butte); w of Cook and Green Pass, ca 1/2 air mi from Red Butte 1730 Comment
  UC1736255  Orthocarpus cuspidatus subsp. copelandii Dean W. Taylor 1972-7-4 1604 Siskiyou near Lily Pad Lake 3 miles W of Cook & Green Pass 1767 Comment
  UC110977  Orthocarpus pachystachyus H. E. Brown Jun 1-15 1897 449 Siskiyou n side Mt. Shasta Comment
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Jun 23 2016
  HSC4881  Osmorhiza berteroi J. O. Sawyer 1968-7-2 378 Siskiyou Upper drainage of Joe Creek 1677 Comment
  HSC78374  Osmorhiza berteroi L. P. Janeway 1983-9-11 657 Siskiyou Poker Flat 1524 Comment
  SBBG30561  Osmorhiza berteroi D. Myrick 1968-6-25 2011 Siskiyou Mountain Meadow Ranch, Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  HSC69011  Osmorhiza occidentalis Maralyn A. Renner 1980-7-24 2032 Siskiyou Lily Pad Lake 1768 Comment
  POM149889  Paeonia brownii Geo. D. Butler 1910-4-23 1229 Siskiyou Quartz Valley. Comment
  RSA114963  Papaver rhoeas E. K. Balls, Lee W. Lenz 1956-6-18 21719 Siskiyou US Highway 99, Gazelle 823 Comment
  JEPS83884  Parnassia californica Wayne Roderick July 1976 Siskiyou vicinity of Cook and Green Pass (along trail to Lily Pad Lake, Siskiyou Mountains); Siskiyou Mountains 1706 Comment
  RSA202366  Parnassia fimbriata J. M. Tucker, L. K. Mann, S. L. Holloway 1963-8-18 3745 Siskiyou Upper Canyon Creek ca. 1/2 mile NE of the Marble Valley Guard Station, Marble Mountain Wilderness Area. 1921 Comment
  RSA467322  Parnassia fimbriata M. B. Dunkle 1945-1 9360 Siskiyou Klamath National Forest; Marble Mountains, Black Marble ridge [?]. Comment
  HSC62026  Parnassia fimbriata Al Hobart 25 Sep [year missing] Siskiyou Preston Peak 1677 Comment
  CAS-BOT-BC202834  Paxistima myrsinites John Thomas Howell 1952-6-14 2831 Siskiyou Just north of Black Butte Comment
  UC604460  Paxistima myrsinites G. L. Stebbins Jr. 1936-6-13 1981 Siskiyou ca. 1 1/2 mi. w. Mt. Shasta City (e. and n.e. slope of spur of Rainbow Ridge above Sulloway Creek) Comment
  HSC685  Pedicularis attollens William J. Ferlatte 1967-8-20 1063 Siskiyou Caribou Basin 1982 Comment
  RSA401964B  Pedicularis aurantiaca Christopher Davidson 1975-6-5 2684 Siskiyou 0.8 mi N of Scott Mtn Summit on Hwy 3. 1585 Comment
  POM43388  Pedicularis aurantiaca Geo. D. Butler 1324 Siskiyou Goosenest foothills. 1524 Comment
  UC618752  Pedicularis densiflora W. Bridge Cooke 1938-6-24 11098 Siskiyou Mount Shasta 1524 Comment
  HSC47102  Pedicularis howellii J. O. Sawyer, K. Stillman 1978-7-6 3300 Siskiyou Along Happy Camp- O'Brien Rd., 0.5 mi. S of summit and S of Louse Creek 1280 Comment
  HSC66247  Pedicularis howellii Maralyn A. Renner 1980-7-24 2024 Siskiyou Lily Pad Lake 1768 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
  HSC72409  Pedicularis racemosa J. P. Smith, Steve Selva 1970-7-27 4513 Siskiyou Gumboot Lake 1768 Comment
  RSA211402  Pedicularis racemosa William J. Ferlatte 1966-8-19 443 Siskiyou Kidd Creek Trail. Trinity Alps. 1890 Comment
  RSA758223  Pedicularis racemosa Robert F. Thorne 1969-8-2 63323 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  SEINET13751981  Pedicularis racemosa G. D. Butler 1910-7-7 1650 Siskiyou Shackleford Creek Comment
  RSA184808  Pellaea breweri Gilbert Muth 1966-8-3 163 Siskiyou S of camp, Marble Mtns. Comment
  HSC4800  Penstemon anguineus William J. Ferlatte 1966-8-5 325 Siskiyou N side of Caribou Mtn. 1982 Comment
  JEPS7207  Penstemon anguineus Geo. D. Butler 428 Siskiyou on trail beyond Whiskey Camp; Independence Creek, beyond Whiskey Camp Comment
  SD62067  Penstemon anguineus Darley F. Howe 1965-8-8 4125 Siskiyou Saddle, south side of Little Gray Back, Klamath National Forest 1402 Comment
  UC1483456  Penstemon anguineus John Palmer 1980-7-23 1922 Siskiyou on w side of Upper Devils Peak Klamath National Forest, Seiad Valley Quad., Upper Devils Pk (Pacific Crest Trail) 1767 Comment
  UCD124033  Penstemon anguineus Roman Gankin; Brewer, Hildreth, Milam 1965-8-10 604 Siskiyou summit of Indian Creek Road, 3.5 miles south of California-Oregon State line. Comment
  NY571173  Penstemon azureus var. azureus C. L. Hitchcock 1939-7-6 5230 Siskiyou Peak above and north of Divide of Siskiyou Mountains, on Takilma-Happy Camp road. 1828.8 Comment
  UC536681  Penstemon cinereus D. H. Johnson and F. G. Palmer 1935-5-16 Siskiyou 11 mi ne Weed; caves ne of Weed 1097 Comment
  UC1629928 Image available Penstemon cinicola Juha Pykala and D. H. Norris 1987-7-8 2423 Siskiyou s and w sides of lake, between lake and road Little Medicine Lake 2040 Comment
  POM14668  Penstemon davidsonii subsp. davidsonii E. B. Copeland 1903-8-16 3871 Siskiyou Mount Shasta 3201 Comment
  NY590188  Penstemon davidsonii var. davidsonii F. M. Ownbey 1940-7-4 2185 Siskiyou On ridge above head of Brewer Creek, east side of Mount Shasta. Comment
  SBBG7140  Penstemon deustus H. and M. Dearing 1939-6-3 3534 Siskiyou near Weed Comment
  SBBG82196  Penstemon deustus M. Roantree, B. Bonning 1983-5-28 Siskiyou NW of Callahan on St Hwy 3, near mile marker 10.00 Comment
  RSA238830  Penstemon deustus Frederick W. Oettinger 1968-8-15 524 Siskiyou East of Hancock Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. 1936 Comment
  UC1177927  Penstemon deustus var. pedicellatus Francia Chisaki and Gene B. Newcomb 1958-6-22 1155 Siskiyou at base of Black Butte just e Highway #99; at base of Black Butte Comment
  CHSC4543  Penstemon gracilentus J. E. Bowlin 1967-7-18 49 Siskiyou On a bank ca. 20 ft. high, above the road, and 2.8 mi w of Mount Shasta Ski Bowl. 2133 Comment
  SEINET10880486  Penstemon gracilentus Andrew Townesmith, Karen M. Meyer 2007-7-30 Townesmith 870 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
  NY601594  Penstemon heterodoxus var. shastensis A. A. Heller 1938-7-13 15269 Siskiyou Along U.S. Highway 97, just south of Bray 1402.1 Comment
  SJSU6487  Penstemon heterodoxus var. shastensis R. W. Trivelpiece 1972-6-9 101 Siskiyou c. 4 mi E of Grass L 1524 Comment
  HSC72451  Penstemon heterophyllus J. P. Smith, Steve Selva 1970-6-15 3973 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  NY603843  Penstemon humilis var. humilis G. Schoolcraft 1985-6-18 1433 Siskiyou Mahogany Mountains 1706.9 Comment
  HSC97132  Penstemon laetus subsp. sagittatus L. Ahart, John Dittes 2005-6-9 12029 Siskiyou Hill, S of rock fence, 100 yds. NE of where cattle water in Shasta River, 3/5 mi. S of Hwy. 99/97 Cutoff, 2.5 mi. ESE of Grenada 775 Comment
  JEPS11636  Penstemon laetus var. sagittatus W. L. Jepson Jul 17 1902-Jul 22 1902 2067 Siskiyou The Devil's Backbone , The Devil's Backbone (Western Siskiyou) 1828 Comment
  UCD69102  Penstemon laetus var. sagittatus D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-11 s.n. Siskiyou Siskiyou: Mount Shasta-Shasta Peak. J. Everitt Memorial Highway. White fir forests (Castanopsio sempervirentis-Abietetum lowianae Rivas-Martinez and Sanchez-Mata 1997). 1520 Comment
  CHSC4529  Penstemon newberryi J. E. Bowlin 1967-7-18 39 Siskiyou Ca. 8.5 mi w of Mount Shasta Ski Bowl. 1554 Comment
  SDSU10960  Penstemon newberryi D. F. Howe 1962-8-6 3405 Siskiyou Mt. Shasta, Shasta National Forest. 2438 Comment
  HSC4838  Penstemon newberryi subsp. berryi J. O. Sawyer 1968-7-22 538 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC55718  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-26 10150 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  POM14640  Penstemon newberryi subsp. newberryi E. B. Copeland 1903-7-17 3510 Siskiyou Mt. Shasta 1829 Comment
  JEPS101482  Penstemon newberryi var. berryi Dean W. Taylor 1972-7-3 1611 Siskiyou Salmon Mountains, near Little Duck Lake 1981 Comment
  UC705571  Penstemon newberryi var. berryi Marion Ownbey, Fred G. Meyer 1940-7-6 2204 Siskiyou Cayenne Ridge, W side at summit Marble Mountain Comment
  NY627342  Penstemon newberryi var. newberryi A. A. Heller 1905-6-16 8048 Siskiyou Near Sisson Comment
  NY627381  Penstemon newberryi var. newberryi A. C. Scribner 1968-6-21 689- 13 Siskiyou Mt. Shasta Comment
  UC1017676  Penstemon parvulus Marion Ownbey and Ruth P. Ownbey 1938-7-19 1749 Siskiyou 2 1/2 mi nw Dry Lake Lookout (summit of the Siskiyou Mountains); , nw of Dry Lake Lookout Comment
  NY629980  Penstemon parvulus R. C. F. Bacigalupi 1957-6-26 5964 Siskiyou Canyon of the South Fork of the Sacramento River, at its source in the region immediately south of Mt. Eddy, along very poor mountain road to Gumboot Lake 1432.6 Comment
  RSA238767  Penstemon parvulus Frederick W. Oettinger 1968-8-16 539 Siskiyou west side of Red Hill near Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2058 Comment
  UCD124188  Penstemon parvulus J. M. Tucker; L. K. Mann 1963-8-18 3749 Siskiyou East-facing slope, around 200 feet below summit of saddle between Marble Mountain and southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wildnerness Area. 2011 Comment
  CHSC88386  Penstemon rydbergii var. oreocharis Jenny Marr 1993-7-1 145 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  NY651257  Penstemon rydbergii var. oreocharis P. Rubtzoff 1978-6-26 9218 Siskiyou Southeast margin of Grass Lake near Highway 97 Comment
  RSA32484  Penstemon shastensis C. Edward Graves 1944-08 s.n. Siskiyou Mt Shasta. 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
  UC887110  Penstemon speciosus A. A. Heller 1938-7-12 15249 Siskiyou along U.S. Highway #97, 5 mi n Weed; n of Weed Comment
  RSA237657  Perideridia howellii Frederick W. Oettinger, R. Thorne 1969-8-8 1309 Siskiyou West of English Lake above the main campsite. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1799 Comment
  RSA237660  Perideridia howellii Frederick W. Oettinger 1969-8-18 1430 Siskiyou Due NW of Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  JEPS22049  Perideridia parishii subsp. latifolia Rimo Bacigalupi with Reino and Aloha Alava 1958-9-2 6932 Siskiyou in meadow 1/4 mi n Scott Mtn. road summit (rd. from Callahan to Trinity Center) 1615 Comment
  CDA38502  Perideridia parishii subsp. latifolia T. R. Haig & F. D. Horn 1979-8-16 s.n. Siskiyou Gumboot Lake Area, west of Mount Shasta. 0 Comment
  UC1051790  Phacelia L. R. Heckard 1952-6-18 307 Siskiyou about 0.5 mi w Panther Creek Guard Station (16 mi e of Montague on rd to Mt. Hebron) Comment
  UCD77221  Phacelia cookei Robert E. Preston 1997-6-1 1038 Siskiyou in sandy flats 100 ft n of Hwy 97. 1402 Comment
  CDA40370  Phacelia greenei G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2646 Siskiyou Schoolhouse Hill, summit of Gazelle/Callahan Road, 11.3 km east of Callahan. Comment
  RSA94034  Phacelia greenei R. C. Barneby 1954-5-16 11530 Siskiyou 6 miles SW of Yreka 976 Comment
  SEINET5763105  Phacelia greenei L. Constance, H. L. Moon, J. F. Davidson, J. M. Tucker 1947-5-17 3200 Siskiyou Scott Mountain, summit of northwest spur. 1829 Comment
  UC1481197  Phacelia hastata L. Constance 1980-6-3 3896 Siskiyou junction of old Military Pass rd and U.S. Hwy. 97 (n of Mt. Shasta) 1341 Comment
  UC24397  Phacelia hastata Harley P. Chandler June 1901 1655 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  SD53387  Phacelia hastata subsp. compacta Darley F. Howe 1962-8-4 3391 Siskiyou Near summit of Baldy Mt. 1737 Comment
  SDSU6611  Phacelia hastata subsp. compacta D. F. Howe 1962-7-4 Siskiyou Near summit of Baldy Mt. Comment
  HSC65628  Phacelia heterophylla subsp. virgata J. P. Smith 1976-5-22 8784 Siskiyou Callahan Rd. along the E side of Scott Valley 1037 Comment
  JEPS2080  Phacelia heterophylla subsp. virgata Geo. D. Butler 1909-5-8 743 Siskiyou near Yreka Comment
  JEPS81027  Phacelia heterophylla subsp. virgata James Payne Smith Jr. 1976-5-5 8699 Siskiyou road between Forks of Salmon and Somes Bar 365 Comment
  RSA170279  Phacelia heterophylla subsp. virgata W. L. Jepson 1940-6-23 20012 Siskiyou Andesite station, north of Mount Shasta. 976 Comment
  JEPS25769  Phacelia leonis Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7460 Siskiyou along Del Norte-Siskiyou co. boundary about 13 mi nw Happy Camp (meadow of valley); Siskiyou Mts., Indian Creek drainage, Twin Valley 1524 Comment
  JEPS87068  Phacelia leonis Dean W. Taylor 1988-7-9 9935 Siskiyou Gumboot Lake North Coast Ranges, Seven Lakes Basin 7 1/2' quad, South For (headwaters of river) 1950 Comment
  CHSC71304  Phacelia linearis Vernon H. Oswald; Lowell Ahart 1998-6-11 9182 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
  UC163845  Phacelia linearis Geo. D. Butler 1909-5-14 742 Siskiyou n Yreka; Klamath<?> River Comment
  SBBG41209  Phacelia mutabilis J. T. Howell 1939-8-2 Siskiyou Spirit Lake, Marble Mtns 1828 Comment
  UC221581  Phacelia mutabilis Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2444 Siskiyou Mt. Shasta and vicinity Comment
  UCD77216  Phacelia mutabilis Robert E. Preston 2001-7-21 1741 Siskiyou Klamath National Forest, Rainbow Mountain, T42N R1W sw 1/4 of ne 1/4 Section 22 2255 Comment
  HSC75108  Phacelia pringlei J. P. Smith, Thomas W. Nelson 1979-6-16 10138 Siskiyou Klamath National Forest; S.R. 3, 2.7 miles from the Scott Mtn.summit 1341 Comment
  CAS-BOT-BC77407  Philadelphus lewisii H. P. Olmo 1933-6-8 s.n. Siskiyou Somes Bar, Klamath River Comment
  CAS-BOT-BC77424  Philadelphus lewisii Gilbert Muth 1965-8-3 s.n. Siskiyou Down creek from Marble Valley Comment
  UC165383  Philadelphus lewisii Geo. D. Butler 1908-8-11 87 Siskiyou Shackleford Creek Quartz Valley Comment
  HSC77101  Phleum alpinum K. T. Stillman 1976-7-30 339 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  SEINET10954464  Phleum alpinum H. E. Brown 1897-6-11 Brown 445 Siskiyou north side Mt. Shasta 1524 Comment
  UC722304  Phlox C. L. Hitchcock and J. S. Martin 1939-7-7 5274 Siskiyou 0.5 mi above Camp Chicago (on Sanger Peak Trail); Whiskey Lake 1463 Comment
  HSC19155  Phlox diffusa J. O. Sawyer 1969-7-24 1484 Siskiyou NE facing seep SW of Sugar Lake 1890 Comment
  SEINET10913457  Phlox diffusa Andrew Townesmith, Karen M. Meyer 2007-7-30 Townesmith 868 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
  UC195176  Phlox diffusa Annie M. Alexander and Louise Kellogg 1911-6-21 165 Siskiyou Jackson Pk and Jackson Lake Jackson Pk., Jackson Lake Comment
  UC726850  Phlox diffusa A. A. Heller 1940-7-25 15768 Siskiyou just above Horse Camp; Mt. Shasta 2438 Comment
  JEPS124890 Image available Phlox diffusa P. L. Billings 1965-7-25 96 Siskiyou About 100' above end of road on Mt. Shasta. Comment
  POM258057  Phlox diffusa subsp. diffusa C. L. Hitchcock, J. S. Martin 1939-7-7 5274 Siskiyou Whiskey Lake, 1/2 mile above Camp Chicago, on Sanger Peak Trail 1463 Comment
  RSA68854  Phlox diffusa subsp. diffusa A. E. Culbertson 1943-6-26 102 Siskiyou Castle Lake, 5434', in a north facing cirque with an abrupt 1000' backwall; 14 miles s.w. of Mt. Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. Comment
  JEPS80559  Phlox douglasii subsp. rigida Gilbert Muth 1965-8-6 184 Siskiyou Black Mountain Marble Mt. Wilderness Area (backside, alpine fells fields) 2042 Comment
  RSA233661  Phlox douglasii subsp. rigida R. F. Thorne, Frederick W. Oettinger 1969-8-10 3900 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  RSA123785  Phlox hoodii subsp. canescens G. D. Barbe 1955-7-6 117 Siskiyou Dry areas above NE shore of Taylor lake, Salmon Mtns. 1951 Comment
  CHSC75765  Phoradendron densum Vernon H. Oswald; Lowell Ahart 1999-7-5 9814 Siskiyou Gazelle Mtn. on road 41N03 1.0 mi southeast of Gazelle-Callahan Hwy. 1554 Comment
  CAS-BOT-BC56498  Phyllodoce empetriformis A. A. Heller 1915-8-26 12227 Siskiyou Heather meadow near the head of Wagon creek canyon, Mt. Eddy 2590 Comment
  CAS-BOT-BC56501  Phyllodoce empetriformis John Thomas Howell 1939-8-10 15266 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  HSC95685  Phyllodoce empetriformis Juha Pykala, D. H. Norris 1987-6-26 1949 Siskiyou Marble Mtn. Wilderness, Tickner Hole 1768 Comment
  UC1034568  Phyllodoce empetriformis Douglas Barbe 1955-7-25 286 Siskiyou n slope of Scott Mountain Scott Mountain 1981 Comment
  UC166486  Phyllodoce empetriformis Geo. D. Butler 1910-7-8 1686 Siskiyou Shackleford Creek 1828 Comment
  UC917232  Phyllodoce empetriformis R. Tofsrud and J. M. Tucker 1948-8-2 1767 Siskiyou s slope of Mount Shasta, Panther Meadows Panther Meadows; Mount Shasta, Panther Meadows 2407 Comment
  CHSC91747  Physalis longifolia D. H. Shaw; T. C. Fuller 1977-8-30 20221 Siskiyou In field, south of Willow Creek Road, 17 km. northeast of Montague. Comment
  CAS-BOT-BC60759  Physaria occidentalis Geo. D. Butler 1909-4-24 588 Siskiyou Cherry Creek. Comment
  CAS-BOT-BC60774  Physaria occidentalis W. R. Dudley 1899-8-26 s.n. Siskiyou Summit of Mount Eddy. Comment
  CAS-BOT-BC140489  Physocarpus Alice Eastwood 1917-9-2 6651 Siskiyou Shasta Springs Comment
  CAS-BOT-BC140596  Physocarpus capitatus A. A. Heller 1915-8-24 12205 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC46767  Physocarpus capitatus William J. Ferlatte 1974-7-13 1513 Siskiyou Big Flat, steep banks of the S Fork of Salmon River just W of USFS campground 1463 Comment
  SEINET10483400  Physocarpus capitatus Mary Merello 1993-6-22 Merello 689 Siskiyou Shasta National Forest outside of Mt. Shasta City. Along Forest Service Road 26 to Lake Siskiyou. Mixed conifer forest along rocky, gravely slopes of the Sacramento River. 1090 Comment
  CAS-BOT-BC78167  Picea breweriana Doris K. Kildale 1928-8-19 6561 Siskiyou Hancock Lake - trail to Marble Mt. 2133 Comment
  CAS-BOT-BC78174  Picea breweriana Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., [Cuddyhi] Cuddihy Lake Comment
  SEINET10666399  Picea breweriana Peter W. Fritsch, James R. Shevock 2012-6-20 Fritsch 1935 Siskiyou Russian Wilderness, Klamath National Forest. Along Sugar Creek Trail to Sugar Lake from trailhead off forest road 41N14. 1755 Comment
  CAS-BOT-BC78159  Picea breweriana W. R. Dudley 1899-7-6 s.n. Siskiyou South slope Siskiyou Big Meadow Comment
  CAS-BOT-BC78181  Picea breweriana Jim Young 1962-11-10 s.n. Siskiyou Sugar Creek 1524 Comment
  CAS-BOT-BC73436  Picea engelmannii Dorothy Parker 1962-6-1 s.n. Siskiyou Siskiyou Mountains - Sugar Creek, Salmon Mountains 1219 Comment
  CAS-BOT-BC73438  Picea engelmannii J. M. Tucker 1963-7-5 3707 Siskiyou Lower Blake's Fork of South Russian Creek (a tributary of Salmon River), ca. 7 miles (airline) east of Siskiyou county. 1524 Comment
  LA86570  Picea engelmannii J. M. Tucker; 1963-7-5 3707 Siskiyou lower Blake's Fork of S Russian Creek (a tributary of Salmon River), ca. 7 mi (airline) E of Skiskiyou County 1523 Comment
  RSA237208  Picea engelmannii Frederick W. Oettinger 1967-6-27 126 Siskiyou West of Statue Creek near the point where the Music Creek logging road makes hairpin turn. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1756 Comment
  JEPS110479  Pinus albicaulis Robert E. Preston 2001-6-23 1519 a Siskiyou Klamath National Forest, E peak of Rainbow Mountain. 2118 Comment
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Jun 3 2018
  CAS-BOT-BC78328  Pinus attenuata Ira L. Wiggins 1955-7-24 13485 Siskiyou Ridge betw. upper reaches of China Creek and Blind Horse Creek 1463 Comment
  RSA1660  Pinus attenuata C. B. Wolf 1930-10-19 1747 Siskiyou Modoc Lava Beds; 1 mile W of Timbered Butte, on old road from C. W. Hill farm to Little Hot Springs Valley. 1220 Comment
  CAS-BOT-BC73262  Pinus contorta var. latifolia H. A. Thomas 1954-7-24 4516 Siskiyou Salmon-Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville. 1981 Comment
  NY61579  Pinus jeffreyi C. G. Pringle 1882-9-7 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
  CAS-BOT-BC73094  Pinus lambertiana W. R. Dudley 1899-8-9 s.n. Siskiyou S. slope Black Butte, W. of Mt. Shasta. Comment
  JEPS47929  Pinus lambertiana W. L. Jepson 1914-8-9 Siskiyou near Mt. Shasta; McCloud Comment
  CAS-BOT-BC78962  Pinus monticola W. R. Dudley 1901-8-18 s.n. Siskiyou Jackson Lake Comment
  HSC69222  Pinus monticola Maralyn A. Renner 1980-8-31 2622 Siskiyou Twin Valley. 1494 Comment
  HSC69287  Pinus monticola Maralyn A. Renner 1980-7-24 1950 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  JEPS120249  Piperia colemanii Julie Kierstead Nelson 2009-7-8 2009 -018 Siskiyou South slope of Mt. Shasta Comment
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Jul 8 2014
  JEPS64436  Piperia elongata W. L. Jepson 1894-7-1 21278 Siskiyou Sisson Comment
  POM229184  Plagiobothrys greenei L. C. Wheeler 1938-5-18 3502 Siskiyou Siskiyou Mts.: Mt. Diablo Mer. Yreka Creek 854 Comment
  UC164106  Plagiobothrys nothofulvus Geo. D. Butler 1910-4-10 1164 Siskiyou near Yreka Comment
  JEPS68263  Plantago eriopoda L. R. Heckard 1972-5-31 2936 Siskiyou about 2 mi e Gazelle (on road to Weed) Comment
  RSA0028277  Platanthera hyperborea Barbara Ertter 1990-7-14 9343 Siskiyou Wagon Creek on east side of Mt. Eddy, ca. 4 air miles west of Mt. Shasta City 1829 Comment
  JEPS64400  Platanthera leucostachys Willis L. Jepson 1894-8-4 21274 Siskiyou Mt. Shasta Comment
  UC429327  Platanthera leucostachys Milo S. Baker Aug 1897 136 Siskiyou Payne's Springs Comment
  JEPS109706  Platanthera sparsiflora Dean W. Taylor 2002-7-20 18253 Siskiyou Forest Road 17 ca. 3.3 miles west (above) junction with Stewart Springs Road, Parks Creek 1524 Comment
  RSA237642  Platanthera sparsiflora Frederick W. Oettinger 1969-7-29 1101 Siskiyou Outlet of Uncles Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CAS-BOT-BC136655  Platanthera stricta Gilbert Muth 1965-8-4 169 Siskiyou Field redacted by CAS, contact the data manager for more information 1792 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
  RSA238336  Poa bolanderi Frederick W. Oettinger 1968-9-7 759 Siskiyou On hillside going down to Tobacco Lake from Lily Pond. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  UCD90281  Poa bolanderi Geo. D. Butler 1910-7-12 1750 Siskiyou Shackleford Creek. 1219 Comment
  UC1212590  Poa bolanderi Francia Chisaki and Helen Sharsmith 1959-8-20 4733 Siskiyou divide between Scott River and East Fork Salmon River Carrigher's Summit; Inner N coast Ranges 1981 Comment
  CAS-BOT-BC254997  Poa bulbosa Morris Halperin 1930-5-17 301 Siskiyou Near Yreka Comment
  UCD90654  Poa bulbosa Beecher Crampton 1969-6-19 8470 Siskiyou 3 miles north of Weed, along Interstate Hwy. 5. Comment
  HSC27349  Poa cusickii subsp. epilis J. P. Smith, Maralyn O'Meara, J. O. Sawyer 1972-7-3 5697 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC31053  Poa cusickii subsp. epilis Frederick W. Oettinger 1967-8-17 274 Siskiyou High Lakes Basins in Marble Mountain Wilderness Area, Crapo Peak Ridge. 2195 Comment
  SEINET10660119  Poa gracillima A. Arthur Heller 1905-6-9 Heller 8007 Siskiyou Montague. Comment
  HSC69043  Poa piperi Maralyn A. Renner 1980-8-7 2349 Siskiyou Klamath National Forest, S of Rattlesnake Meadow. 1799 Comment
  CAS-BOT-BC256014  Poa pratensis Gilbert Muth 1966-7-19 428 Siskiyou Marble Gap Trail, along 1st bluff, Marble Mts. 1828 Comment
  RSA715659  Poa pratensis L. Ahart 2005-6-10 12125 Siskiyou On a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 777 Comment
  CAS-BOT-BC247529  Poa pringlei Wm. Bridge Cooke 1939-7-26 13755 Siskiyou Mount Shasta. Below Lake Helen on the Summit Trail 3048 Comment
  HSC92156  Poa pringlei Jennifer Whipple 1976-7-7 1319 Siskiyou Summit region of Mtn. Eddy, Trinity and Siskiyou Counties. 2530 Comment
  RSA238332  Poa pringlei Frederick W. Oettinger 1967-8-17 274 Siskiyou On northwest exposure of Crapo Peak Ridge along trial where it crosses the ridge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2195 Comment
  UCD91765  Poa pringlei Freed W. Hoffman 1950-7-13 3655 Siskiyou western side of Baldy Mountain. Comment
  UCD91771  Poa pringlei A. H. Murphy 1959-7-23 59 V Siskiyou Shasta National Forest. Summit between North and Middle fork of Sacramento River. 2286 Comment
  CAS-BOT-BC243222  Poa secunda subsp. secunda Roxana S. Ferris; Laura Lorraine 1948-6-12 11719 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], E fork of Scott River Comment
  HSC89533  Poa secunda subsp. secunda K. Berg, Stephanie Bennett 1986-8-25 650 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little S Fork of Salmon River, above Little S Fork Lake 1982 Comment
  UC1265444  Poa secunda subsp. secunda Frederick W. Oettinger 1969-8-6 1223 Siskiyou s side Pine Lake; Salmon Mts, High Lake Basins, Harvey Monroe Hall Natural Are 1950 Comment
  UC144644  Poa secunda subsp. secunda A. A. Heller 1905-6-9 8007 Siskiyou Montague Comment
  UC1579532  Poa secunda subsp. secunda Mitchell 1936-5-8 4 Siskiyou base of Schonchin Butte; Lava Beds Nat'l Monument 1371 Comment
  CAS-BOT-BC243234  Poa secunda subsp. secunda W. R. Dudley 1901-8-23 s.n. Siskiyou Foxtail Ridge, Salmon Mountains, Siskiyou Mountains Comment
  HSC69266  Poa wheeleri J. O. Sawyer, J. Cole 1980-7-19 3694 Siskiyou Near FS Rd. 45N05 2018 Comment
  UCD18948  Podagrostis humilis A. H. Murphy 1954-8-11 54 D Siskiyou Klamath National Forest, U.S.F.S., Round Meadow. 1676 Comment
  JEPS84250  Polemonium californicum L. R. Heckard with J. Hickman et al. 1986-7-17 6517 Siskiyou n slope of Condrey Mt. 1960 Comment
  HSC19284  Polemonium pulcherrimum J. O. Sawyer 1969-6-12 877 Siskiyou Ridge SE of Eaton Lake 2226 Comment
  POM365428  Polemonium pulcherrimum L. C. Wheeler 1934-8-9 3081 Siskiyou Head of Jaynes Canyon. Siskiyou Mts. (Mt. Diablo Mer.) 1921 Comment
  POM278329  Polygala californica Lyman Benson 1933-8-9 5679 Siskiyou U.S. 99, Mt. Shasta City, Cascade Mountain range, Sacramento River watershed 915 Comment
  UCD109698  Polygala californica Beecher Crampton 1956-8-21 3846 Siskiyou just above junction of thenorth [sic] Fork with middle and south Forks. 1066 Comment
  HSC27592  Polygala cornuta Carl W. Mize 1972-6-21 69 Siskiyou Along trail about 3/8 mi. from corner 343 Comment
  CAS-BOT-BC170334  Polygala cornuta var. cornuta R. E. Frenkel 1964-7-15 689 Siskiyou On Everitt Memorial road near Mount Shast, 1.7 miles north of McCloud River RR crossing. 1290 Comment
  CAS-BOT-BC414276  Polygonum aviculare subsp. depressum R. E. Frenkel 1963-7-15 246 Siskiyou On west side of Everitt Memorial Highway, 0.4 mile north of McCloud River RR crossing, near Mount Shasta 1176 Comment
  RSA237796  Polygonum bistortoides Frederick W. Oettinger 1966-8-7 47 Siskiyou Below Tom Taylor Cabin Springs. The Salmon Mountains. The High Lake Basins in the vicinity of English peak. Marble Mountain Wilderness Area. 2043 Comment
  UC164038  Polygonum bistortoides Geo. D. Butler 1908-8-4 183 Siskiyou Shackleford Creek; head Comment
  RSA211290  Polygonum davisiae William J. Ferlatte 1966-8-5 341 Siskiyou Caribou Mtn., Open granite slopes and ridges. Near summit. 2470 Comment
  CAS-BOT-BC414588  Polygonum douglasii Wm. Bridge Cooke 1938-8-5 11447 Siskiyou Mount Shasta. MacBride Springs Comment
  CAS-BOT-BC414599  Polygonum douglasii Elmer I. Applegate 1923-8-20 3903 Siskiyou Medicine Lake Comment
  POM104413  Polygonum douglasii Geo. D. Butler 1908-8-3 185 Siskiyou Log Lake, Shackleford Creek 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
  JEPS51298  Polygonum douglasii subsp. douglasii Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou near Mt. Shasta; Region of the Upper Sacramento, Sisson Comment
  UC375322  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 189 Siskiyou near Yreka Comment
  RSA598060  Polygonum douglasii subsp. spergulariiforme Louis C. Wheeler 1963-9-2 8331 Siskiyou Siskiyou Mountains. Near Bell Echo Camp, near Young's Valley, Clear Creek. 1402 Comment
  RSA237761  Polygonum kelloggii Frederick W. Oettinger 1969-7-11 975 Siskiyou Along trail just NW of falls, Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1890 Comment
  HSC62288  Polygonum minimum Ruby Van Deventer 1962-8-15 Siskiyou Youngs Valley 1067 Comment
  UC850205  Polygonum minimum Alice Eastwood 1912-8-30 1980 Siskiyou Mount Eddy Comment
  UC1299690  Polygonum phytolaccifolium Freed W. Hoffman 1950-7-13 3648 Siskiyou 1.1 mi from lookout (on road to Indian Creek); Baldy Mountain Comment
  UC55508  Polygonum phytolaccifolium Harley P. Chandler June, 1901 1627 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  UC922363  Polygonum phytolaccifolium Annie M. Alexander and Louise Kellogg 1949-7-19 5808 Siskiyou Paradise Lake Marble Mountains 1920 Comment
  RSA237758  Polygonum phytolaccifolium Frederick W. Oettinger 1969-8-7 1274 Siskiyou SE end of English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  CAS-BOT-BC420072  Polygonum polygaloides subsp. kelloggii A. A. Heller 1922-7-15 13713 Siskiyou At Medicine Lake 2133 Comment
  UC1023733  Polygonum polygaloides subsp. kelloggii W. Bridge Cooke 1941-7-18 16063 Siskiyou along Wagon Camp-Bear Springs road Mount Shasta Comment
  CAS-BOT-BC420069  Polygonum polygaloides subsp. kelloggii Wm. Bridge Cooke 1939-7-13 13653 Siskiyou Mount Shasta. Portion of Squaw Valley Creek Meadows Comment
  CAS-BOT-BC420951  Polygonum sawatchense subsp. sawatchense Herbert L. Mason 1948-7-18 13623 Siskiyou Grass Lake Comment
  JEPS93909  Polygonum sawatchense subsp. sawatchense Vernon H. Oswald and Lowell Ahart 1998-8-3 9456 Siskiyou e of Kangaroo Lake (near Rock Fence Creek, e end of Rock Fence Lake Road (USFS 41N18) in the Scott Mountains); Scott Mountains, Rock Fence Lake Road 1920 Comment
  LA51273  Polygonum shastense Lincoln Ellison; 1928-9-11 510 Siskiyou Mount Shasta, SW slope of mountain 2438 Comment
  RSA264962  Polygonum spergulariiforme E. Mark 1975-10-14 6199 Siskiyou Near Etna. 927 Comment
  UCD100666  Polygonum spergulariiforme Ferdinand Brown 1936-7-13 s.n. Siskiyou Dunsmuis. Comment
  UC637168  Polypodium calirhiza Edward Lee 1934-8-13 1056 Siskiyou 4 mi n Happy Camp (Indian Creek); Klamath Nat'l Forest 411 Comment
  CAS-BOT-BC76730  Polystichum imbricans subsp. imbricans J. H. Thomas; H. A. Thomas 1954-7-27 4557 Siskiyou Salmon - Trinity Mts. - about 6 miles SE of Cecilville, along south Fork of Salmon River. 914 Comment
  HSC29355  Polystichum imbricans subsp. imbricans Frederick W. Oettinger 1968-9-8 777 Siskiyou Due N of the English Lake Outlet 1784 Comment
  CAS-BOT-BC376179  Polystichum lemmonii Andrew Townesmith; Karen M. Meyer 2007-8-1 887 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway) 1983 Comment
  UC1299762  Polystichum lemmonii Freed W. Hoffman 1951-7-16 4045 Siskiyou Packers' Valley North Coast Ranges, Marble Mts., Packers' Valley Comment
  UC336670  Polystichum lemmonii unknown Siskiyou Mt. Eddy near Shasta Mt. Mt. Eddy Comment
  UC812639  Polystichum lemmonii John Thomas Howell 1937-7-29 13668 Siskiyou n side Scott Mt. Comment
  UCR101154  Polystichum lemmonii L. C. Wheeler 1958-8-20 7411 Siskiyou Siskiyou Mountains, south side of Red Butte. 1738 Comment
  CAS-BOT-BC72375  Polystichum lemmonii Lillian Mott 1976-7-18 56 LM76 Siskiyou base of Kangaroo Mt. near Cook and Green Pass 1828 Comment
  HSC76642  Polystichum lemmonii K. T. Stillman 1976-6-26 115 Siskiyou Marble Mtn. Wilderness Area 2012 Comment
  HSC79122  Polystichum lemmonii C. J. Thomas 1983-10-1 80 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  HSC90061  Polystichum lemmonii R. W. Becking 1985-8-28 Siskiyou Scott Mtn. Rd. Callahan, Rockfence Lake, E of Kangaroo Lake, above cabin 1829 Comment
  SJSU6076  Polystichum lemmonii R. W. Trivelpiece 1971-8-10 65 Siskiyou Rock Fence Lake c. 1 mi E of Kangaroo Lake on Kangaroo Creek S of East Fork Scott River between Gazelle and Callahan 1920 Comment
  JEPS82492  Polystichum lonchitis Gilbert Muth 1965-8-3 161 Siskiyou <Pothole> in Marble Valley Marble Valley; Marble Mt. Wilderness Area Comment
  UC371162  Polystichum munitum G. D. Butler 1908-8-24 245 Siskiyou Eldridge's Corral; Russian Creek 1219 Comment
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Jan 13 2007
  SEINET8671627 Image available Polystichum munitum W. Bridge Cooke 1937-1 9133 Siskiyou Mt. Shasta 1524 Comment
  SEINET10343010  Populus tremuloides H. A. Jensen 1933-9-27 356 Siskiyou Widow Spring. Comment
  CAS-BOT-BC102960  Populus trichocarpa Geo. D. Butler 1910-4-16 1177 Siskiyou Yreka Creek Comment
  SEINET10460781  Porterella carnosula A. Arthur Heller 1940-7-23 Heller 15758 Siskiyou Grass Lake on U.S. Highway 97 1561 Comment
  HSC103183  Potamogeton pusillus Dana York 2011-9-9 3089 Siskiyou Klamath National Forest, a few meters inside Marble Mountain Wilderness at Isinglass Lake. 1985 Comment
  RSA236430  Potamogeton robbinsii G. L. Clifton 1972-7-28 1960 Siskiyou Hooligan Lake 1585 Comment
  JEPS93889  Potentilla biennis Vernon H. Oswald and Lowell Ahart 1998-7-21 9341 Siskiyou 0.2 mi se of Old State Highway to Bray (ne of Weed and e of Grass Lake on s side of Tennant Road, on e side of intermittent stream draining Dry Lake); Tennant Road 1402 Comment
  UC1538958 Image available Potentilla cristae Marla A. Knight, Julie D. Knorr 1987-8-3 951 Siskiyou near summit Cory Peak; China Mt. Quad., near summit Cory Peak 2133 Comment
  SEINET11916322  Potentilla drummondii H. P. Chandler 1901-1 1564 Siskiyou nr Marble Mtn 1829 Comment
  UCD113826  Potentilla drummondii J. M. Tucker; L. K. Mann 1963-7-5 3705 Siskiyou On Blake's Fork of South Russian Creek (a tributary of Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1615 Comment
  CAS-BOT-BC143259  Potentilla flabellifolia David Keck 1938-9-8 11626 Siskiyou Springs in the South Gate Comment
  UC420527  Potentilla fruticosa Annie M. Alexander and Louise Kellogg 1911-8-14 330 Siskiyou Mt. Eddy Comment
  RSA183665  Potentilla fruticosa Gilbert Muth 1965-8-12 217 Siskiyou Marble Mountains, backside of Black mountain Comment
  RSA184696  Potentilla glandulosa Gilbert Muth 1966-7-31 470 Siskiyou North side of Black Mountain, Marble Mountains. 1982 Comment
  CHSC86636  Potentilla gracilis Jenny Marr 1993-7-1 19 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC375387  Potentilla gracilis var. fastigiata Geo. D. Butler 1907-6-13 923 Siskiyou Near Oro Fino. Comment
  CAS-BOT-BC540552  Potentilla gracilis var. fastigiata Geo. D. Butler 1910-5-28 1419 Siskiyou Shasta Valley Comment
  CAS-BOT-BC540560  Potentilla gracilis var. fastigiata A. A. Heller 1918-7-16 13030 Siskiyou Mt. Eddy west of Sisson 2651 Comment
  HSC29472  Potentilla gracilis var. fastigiata Frederick W. Oettinger 1969-7-31 1118 Siskiyou High Lake Basin in the vicinity of English Peak, Marble Mountain Wilderness Area: midway between English Lake and drift fence 1829 Comment
  POM264923  Potentilla millefolia Louis C. Wheeler 1935-6-23 3590 Siskiyou Shasta River 2 miles NW Montague 762 Comment
  HSC73351  Prosartes hookeri Gail Newton 1980-6-20 447 Siskiyou Near Bald Mtn. 1097 Comment
  HSC82361  Prunella vulgaris subsp. lanceolata Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4516 Siskiyou Siskiyou-Trinity County line, head of Scott Mtn. Creek, S of Forest Service campground 1646 Comment
  RSA68931  Prunella vulgaris var. lanceolata A. E. Culbertson 1943-7-12 27 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000 backwall; 14 miles SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mts.; 2000 ft. above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CAS-BOT-BC158214  Prunus emarginata John Thomas Howell 1939-8-3 14986 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC125  Prunus emarginata William J. Ferlatte 1966-6-23 123 Siskiyou Yellow Rose Mine 1982 Comment
  UC1128304  Prunus emarginata M. H. Mitchell 1936-6-8 Siskiyou Irish Bridge, Modoc Lava Beds National Monument Irish Bridge; Modoc Lava Beds National Monument, Irish Bridge 1417 Comment
  RSA453224  Prunus emarginata Bonnie C. Templeton 1957-6-21 s.n. Siskiyou On the road up to Mt. Shasta. Comment
  CAS-BOT-BC154676  Prunus subcordata Alice Eastwood 1923-5-29 11996 Siskiyou Cantara Comment
  CAS-BOT-BC151244  Prunus virginiana var. demissa Elmer I. Applegate 1935-6-5 9305 Siskiyou Capt. Jack's Stronghold, Lava Beds National Monument Comment
  CAS-BOT-BC151250  Prunus virginiana var. demissa Geo. D. Butler 1910-4-30 1248 Siskiyou Yreka Creek Comment
  SEINET7412306  Prunus virginiana var. demissa G. D. Butler 1910-7-24 1795 Siskiyou Yreka Creek Comment
  SEINET7452469  Prunus virginiana var. demissa G. D. Butler 1909-5-16 s.n. Siskiyou Near Yreka. Comment
  OBI55445  Pseudognaphalium thermale David J. Keil 1992-7-20 23503 Siskiyou Klamath Natl Forest, SW of Fort Jones. along Forest rd 46N64, 2.8 mi W of Scott river Rd Comment
  CAS-BOT-BC239811  Pseudoroegneria spicata Louis C. Wheeler 1934-6-29 2831 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1066 Comment
  POM206496  Pseudoroegneria spicata subsp. spicata C. F. Baker 1903-9-7 3797 Siskiyou Mt. Eddy. Comment
  CAS-BOT-BC80097  Pseudotsuga menziesii G. B. Grant 1902-9-10 s.n. Siskiyou Sisson 1127 Comment
  CAS-BOT-BC80171  Pseudotsuga menziesii Doris K. Kildale 1928-8-18 6431 Siskiyou North Fork Salmon River at Finley Camp Comment
  HSC27953  Pseudotsuga menziesii var. menziesii Carl W. Mize 1972-9-23 115 Siskiyou 0.5 mi from end of Steinacher Creek Rd. 884 Comment
  UC60896  Pseudotsuga menziesii var. menziesii W. A. Setchell, C. C. Dobie 1902-7-18 Siskiyou Sisson Mt. Shasta Comment
  UCD135128  Pseudotsuga menziesii var. menziesii Lalit M. Srivastava; H. R Offord, C. R. Quick 1959-6-23 81 Siskiyou Cecilville Road south of Black Bear Summit. 1402 Comment
  JEPS59082  Pterospora andromedea Willis L. Jepson Jul 24 1894-Aug 10 1894 14667 Siskiyou Sisson's Comment
  JEPS107958  Puccinellia lemmonii Lowell Ahart, John Dittes 2005-6-9 12006 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
  UCD22429  Purshia tridentata Brian Vanden Heuvel 2003-4-10 190 Siskiyou Shasta National Forest. 1.6 miles east of McCloud on CA 89, on south side of road. Comment
  UC1128548  Purshia tridentata var. tridentata H. A. Jensen 1933-8-7 341 Siskiyou adjoining Black Butte; Shasta National Forest, Dunsmuir Quad. 1188 Comment
  UC164302  Purshia tridentata var. tridentata Geo. D. Butler 1909-5-1 686 Siskiyou near Yreka Creek (Shasta River); Shasta River Comment
  UCD113276  Purshia tridentata var. tridentata K. M. Meyer; A. Townesmith 2007-8-2 184 Siskiyou Shasta-Trinity National Forest. 0.1 mile on Forest Service Road 43N21, 12.5 miles on Highway 97, E side of road. 1218 Comment
  CAS-BOT-BC460864  Pyrola aphylla Ira L. Wiggins 1955-7-21 13442 Siskiyou Rush Creek Trail, 2 mi. above Mt. View Ranch 1097 Comment
  HSC23584  Pyrola asarifolia subsp. asarifolia J. O. Sawyer 1970-7-3 2312 Siskiyou W of camp 3 1524 Comment
  JEPS25873  Pyrola dentata Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7446 Siskiyou Along Happy Camp - Takilma road, about 2 miles above West Branch Ranger Station, Siskiyou Mountains 670 Comment
  CAS-BOT-BC462802  Pyrola dentata Marion Ownbey; Fred G. Meyer 1940-7-8 2225 Siskiyou Near summit of Siskiyou Mountains, 17 miles N of Happy Camp Comment
  HSC30474  Pyrola dentata Frederick W. Oettinger 1969-8-9 1325 Siskiyou Salmon Mts., before Hen Creek along main N Fork Trail between Fivemile Stockgate and Abbott's Upper Cabin 1098 Comment
  RSA0080478  Pyrola dentata R. F. Thorne 1969-8-2 63391 Siskiyou Klamath National Forest, Salmon Mountains: Marble Mtn Wilderness, along trail to English Peak. 1159 Comment
  HSC67673  Pyrola minor John Palmer 1980-7-24 594 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC65567  Pyrola picta Rich White 1977-7-21 131 Siskiyou Slope below outlet of Raspberry Lake 1512 Comment
  UC876270  Pyrola picta Alice Eastwood 1912-7-15 1116 Siskiyou McCloud Comment
  CAS-BOT-BC466140  Pyrola picta L. E. Smith 1913-9-14 s.n. Siskiyou Mt. Eddy Comment
  CAS-BOT-BC466154  Pyrola picta Miss E. Cannon 1893-8-1 s.n. Siskiyou Mt. Shasta Comment
  CHSC78495  Pyrrocoma racemosa var. pinetorum Vernon H. Oswald 2000-8-28 9960 Siskiyou Hwy 3 2.2 mi north of Scott Mtn. Summit. 1411 Comment
  UCD82869  Quercus chrysolepis Rodney Gale Myatt 1971-9-22 1220 -6 Siskiyou Next to Klamath River, past Horse Creek. 500 Comment
  CAS-BOT-BC94661  Quercus garryana Wm. F. Herrin 1919-9-1 s.n. Siskiyou near Dunsmuir Comment
  SACT002132  Quercus garryana Herbert Copeland 1936-6-21 Siskiyou roadside, small trees, abundant on arid hills Comment
  UC220658  Quercus garryana H. E. Brown Aug 1 1897-Aug 15 1897 Siskiyou s side Mt. Shasta 1524 Comment
  CAS-BOT-BC62762  Quercus garryana var. breweri Doris K. Kildale 1929-7-20 8626 Siskiyou trail along South Fork Indian Creek to Elk Lick Comment
  RSA237386  Quercus garryana var. breweri Frederick W. Oettinger 1968-8-18 574 Siskiyou Due NNW of Tobacco Lake and west of the west cove of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  SD113945  Quercus garryana var. breweri Darley F. Howe 1969-9-12 4677 Siskiyou Just south of Little Grayback. 1524 Comment
  RSA623530  Quercus kelloggii J. M. Tucker 1972-8-8 4244 Siskiyou Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 miles west-southwest of Marble Valley Guard Station. 1829 Comment
  UC60993  Quercus kelloggii Geo. B. Grant Sep 1902 5197 Siskiyou Sisson Mount Shasta 914 Comment
  CAS-BOT-BC104347  Quercus sadleriana Reino Olavi Alava; Aloha Alava; Rimo Bacigalupi 1958-9-3 2454 Siskiyou At the junction of the road to Poker Flat and the road from Happy Camp to Takilma 1376 Comment
  CAS-BOT-BC104366  Quercus sadleriana Sandra L. Holloway 1963-10-12 77 Siskiyou Junction Red Rock valley trail and Canyon Creek trail, Marble Mountain Wilderness Area 1341 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
  HSC29468  Quercus sadleriana Frederick W. Oettinger 1968-9-7 761 Siskiyou Marble Mtn. Wilderness Area, N shore of Tobacco Lake 1890 Comment
  RSA184760  Quercus sadleriana Gilbert Muth 1966-8-5 501 Siskiyou Meadow on Black Mountain Trail, Marble Mountain. 1799 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
  UCD47222  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 D Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte-Siskiyou county line, California. 1554 Comment
  UCD47245  Quercus sadleriana Reino Alava; Aloha Alava, Rimo Bacigalupi 1958-9-3 2454 Siskiyou At the junction of the road to Poker Flat and the road from Happy Camp to Takilma. 1376 Comment
  UCD47274  Quercus sadleriana Dean W. Taylor 1972-7-1 s.n. Siskiyou (Q. garryana Hook. var. breweri (Engelm.) Jepson). California, Siskiyou Co.; 0.5 mi. east of Cook and Green Pass, north of Seiad Valley, T. 47N, R11W, Sect. 9, Seiad Valley Quadrangle; 1463 Comment
  CAS-BOT-BC104616  Quercus vacciniifolia L. E. Smith 1913-6-29 417 Siskiyou Rainbow Comment
  CAS-BOT-BC104628  Quercus vacciniifolia John Thomas Howell 1937-6-26 13522 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CDA22069  Quercus vacciniifolia Gordon Leppig, Tony LaBanca 1998-7-11 923 Siskiyou Kalmath National Forest, Duck Lakes Trail. Comment
  HSC19226  Quercus vacciniifolia J. O. Sawyer 1968-9-10 678 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  JEPS20044  Quercus vacciniifolia George D. Butler 1908-8-11 231 Siskiyou Shackleford Creek 1158 Comment
  RSA237826  Quercus vacciniifolia Frederick W. Oettinger 1969-9-4 1646 Siskiyou At northeast side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UC1040687  Quercus vacciniifolia Beecher Crampton 1956-8-21 3847 Siskiyou just above junction of the North Fork with the South and Middle Fork; Canyon of the Sacramento River 1066 Comment
  UC1409374  Quercus vacciniifolia Frederick W. Oettinger 1968-9-5 704 Siskiyou along the trail from English to Diamond Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1889 Comment
  HSC68243  Raillardella pringlei J. P. Smith, Steve Selva 1970-7-27 4511 Siskiyou Gumboot Lake 1768 Comment
  UCD135381  Raillardella pringlei Bruce G. Baldwin 1986-7-21 617 Siskiyou Shasta-Trinity National Forest, around 0.25 miles north of Gumboot Lake along gumboot Creek (near Mount Eddy). Comment
  UC1584286  Ranunculus alismifolius Julie Kierstead 1990-4-18 90 -16 Siskiyou 0.2 mi from Jct. of FS Rds. 3N55 and 40N09.4; Shata-Trinity N.R., McCloud R.D. 1341 Comment
  CAS-BOT-BC379130  Ranunculus aquatilis var. diffusus Laura M. Lathrop 1903-7-20 s.n. Siskiyou Shasta Retreat Comment
  CAS-BOT-BC482449  Ranunculus eschscholtzii var. suksdorfii Dana York 2011-8-13 3058 Siskiyou Marble Mountain Wilderness, Klamath National Forest, NE-facing slope of Marble Mountain 2045 Comment
  UC688900  Ranunculus eschscholtzii var. suksdorfii Vesta Holt 1943-8-7 M- 1 Siskiyou Marble Mountains Comment
  UCR37849  Ranunculus eschscholtzii var. suksdorfii K. T. Stillman 1976-6-25 81 A Siskiyou Marble Mountain Wilderness Area. On north side of Elk Valley 1799 Comment
  JEPS60681  Ranunculus glaberrimus Milo S. Baker 1933-4-10 7350 Siskiyou Pacific Hwy 2 mi s Yreka; Pine Grove Auto Camp Comment
  POM100032  Ranunculus occidentalis Geo. D. Butler 1909-4-25 683 Siskiyou Quartz Valley. Comment
  POM268378  Ranunculus occidentalis var. eisenii Frank W. Gould 1940-5-15 s.n. Siskiyou Bald Mtn on road from Mt. Hebron to Montague 1677 Comment
  RSA211168  Ranunculus orthorhynchus William J. Ferlatte 1967-6-30 590 Siskiyou Along S Fork of the Salmon River betw the campground and Carter's. 1524 Comment
  RSA256708  Ranunculus orthorhynchus J. P. Smith, Thomas W. Nelson 1974-5-25 7471 Siskiyou Along road 8, 4.7 mi. west of its junction with State Route 3. 1159 Comment
  HSC26700  Ranunculus orthorhynchus var. orthorhynchus William J. Ferlatte 1969-6-25 1181 Siskiyou Big Flat 1524 Comment
  HSC601  Ranunculus orthorhynchus var. orthorhynchus William J. Ferlatte 1967-6-30 590 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  UC118221  Ranunculus orthorhynchus var. orthorhynchus T. S. Brandegee July 1887 Siskiyou Ager Comment
  UC796607  Ranunculus orthorhynchus var. orthorhynchus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11820 Siskiyou Parker Ranch Plowman's (Noyes) Valley, e. fork of Scott River Drainage 1203 Comment
  CDA3485  Ranunculus repens C. S. Giebner 1959-5-29 Siskiyou Copeland Ranch, Weed. 0 Comment
  RSA238023  Rhamnus purshiana Frederick W. Oettinger 1968-8-23 617 Siskiyou Mid way down the steep spillway from Diamond Lake to upper English Lake and along the spillway stream. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness. 1921 Comment
  POM244253  Rhamnus rubra subsp. obtusissima Carl B. Wolf 1930-10-22 1755 Siskiyou 3 miles N of Mt. Shasta City on the Pacific Hwy 1220 Comment
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Sep 10 2010
  UCD77802  Rhododendron columbianum Robert E. Preston 2002-7-13 1919 Siskiyou Klamath National Forest, Rainbow Lake 1828 Comment
  JEPS58760  Rhododendron occidentale W. L. Jepson 1914-8-14 6165 Siskiyou Dunsmuir 670 Comment
  UC456172  Rhododendron occidentale I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Castle Lake Comment
  HSC69107  Rhododendron occidentale var. paludosum Maralyn A. Renner 1980-8-6 2300 Siskiyou Cracker Meadow 1555 Comment
  CAS-BOT-BC200744  Rhus aromatica Mrs. H. C. Cantelow 1936-5-20 1463 Siskiyou Cottonwood Creek, near Oregon line Comment
  CAS-BOT-BC438004  Ribes L. B. Kildale 1929-5-26 9192 Siskiyou Salmon River at Hawkin Car 609 Comment
  UC165746  Ribes binominatum Geo. D. Butler 1908-8-4 259 Siskiyou head Shackleford Creek Comment
  POM92615  Ribes binominatum Geo. D. Butler 1910-7-8 1682 Siskiyou Shackelford Creek. 1220 Comment
  RSA459477  Ribes binominatum M. B. Dunkle 1944-7-26 9038 Siskiyou Siskiyou National Forest. 1829 Comment
  CAS-BOT-BC108776  Ribes cereum Elmer I. Applegate 1935-8-4 10026 Siskiyou Upper Ice Cave, Lava Beds National Monument. Comment
  HSC69495  Ribes cereum J. O. Sawyer, J. Cole 1980-7-19 3687 Siskiyou Near FS Rd. 45N05, center of section 1890 Comment
  CDA25538  Ribes inerme var. klamathense G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2622 Siskiyou 200 meters north of Hamilton Street on Highway 3, north edge of Fort Jones. Comment
  UC1181815  Ribes inerme var. klamathense Dorothy Parker 1950-4-28 407 Siskiyou along Scott River Siskiyou Mountains, Scott Valley 853 Comment
  CAS-BOT-BC173297  Ribes lacustre D. E. Breedlove 1962-6-10 3270 Siskiyou On bank of Dunn Creek along Indian Creek Road from O'Brien to Happy Camp, 24.6 miles northwest of Happy Camp 1356 Comment
  HSC19428  Ribes lacustre J. O. Sawyer 1968-6-18 210 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  HSC77492  Ribes lacustre L. P. Janeway 1983-6-26 344 Siskiyou Along FS Rd. 18N33 towards Poker Flat, 9 mi. from Grayback Rd. 1433 Comment
  CAS-BOT-BC173385  Ribes lobbii Ira L. Wiggins 1955-7-22 13460 Siskiyou Ridge W of China Creek S side of S Fork of Salmon River 960 Comment
  HSC22486  Ribes lobbii J. O. Sawyer 1969-6-12 875 Siskiyou E facing upper slope above Sugar Creek 1982 Comment
  UC1736425  Ribes lobbii Dean W. Taylor 1999-6-10 17249 Siskiyou Marble Mountains, Mill Creek, ca. 4 miles W from Mugginsville in Quartz Valley, northerly facing slopes near watershed divide with Kidder Creek 1584 Comment
  CAS-BOT-BC217879  Ribes nevadense Elmer I. Applegate 1895-5-29 197 Siskiyou Base of Mount Shasta, near Sisson, Strawberry Valley Comment
  CAS-BOT-BC217882  Ribes nevadense Lester Rowntree 1937-7-23 s.n. Siskiyou Caribou Lake Comment
  CAS-BOT-BC219272  Ribes nevadense John Thomas Howell 1937-7-22 13310 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC98217  Ribes nevadense J. O. Sawyer 1969-7-9 1227 Siskiyou SE facing slope above South Sugar Lake 1890 Comment
  JEPS49300 Image available Ribes nevadense Annie M. Alexander and Louise Kellogg 1911-6-21 164 Siskiyou Jackson Lake Comment
  UC162061  Ribes nevadense A. A. Heller 1905-6-5 7967 Siskiyou near Shasta Springs Comment
  HSC46734  Ribes roezlii William J. Ferlatte 1976-9-22 1862 Siskiyou W side of Grouse Ridge along Yellow Rose Mine Trail 1829 Comment
  UC857963  Ribes roezlii A. A. Heller 1915-7-15 11970 Siskiyou Mt. Eddy 2072 Comment
  CAS-BOT-BC199980  Ribes roezlii var. cruentum John H. Thomas 1954-5-14 4185 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville 1219 Comment
  JEPS49461  Ribes roezlii var. cruentum Geo. D. Butler 1909-4-11 655 Siskiyou Shasta Retreat Comment
  JEPS49462  Ribes roezlii var. cruentum W. L. Jepson 1902-7-17 2059 Siskiyou trail to Devil's Backbone; Trinity Summit 2133 Comment
  UC705902  Ribes roezlii var. cruentum Marion Ownbey, Fred G. Meyer 1940-7-6 2197 Siskiyou s side near summit Cayenne Ridge; Marble Mountain Comment
  CAS-BOT-BC200007  Ribes roezlii var. cruentum Doris K. Kildale 1929-7-20 8543 Siskiyou South Fork of Indian Creek near Gilmores Comment
  RSA0024596  Ribes roezlii var. cruentum Louis C. Wheeler 1934-6-28 2815 Siskiyou Little Soda Creek, Sterling Mt., Siskiyou Mts. 1067 Comment
  RSA0024599  Ribes roezlii var. cruentum Geo. D. Butler 1909-4-15 645 Siskiyou Humbug Creek. Comment
  CAS-BOT-BC186287  Ribes roezlii var. roezlii W. R. Dudley 1899-8-22 s.n. Siskiyou Above Callahans Comment
  CAS-BOT-BC186292  Ribes roezlii var. roezlii Wm. Bridge Cooke 1938-8-19 11516 Siskiyou Lower Bear Spring Comment
  RSA0019543  Ribes sanguineum Joseph P. Tracy 1951-6-16 19497 Siskiyou Summit of the Siskiyous, at crossing of the Takilma-Happy Camp Road near state line. Comment
  CAS-BOT-BC173903  Ribes velutinum Lyman Benson 1929-3-27 1074 Siskiyou Rocky ledges by the Pacific Highway on Klamath River Comment
  UC857970  Ribes velutinum A. A. Heller 1938-7-12 15251 Siskiyou base of lava flow 8 mi n Weed (along U.S. Highway 97) Comment
  RSA0020886  Ribes velutinum A. A. Heller 1938-7-12 15251 Siskiyou 8 miles north of Weed, on US Highway 97. Comment
  HSC67792  Ribes viscosissimum J. O. Sawyer, J. Cole 1980-7-20 3747 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  CDA25593  Ribes viscosissimum var. hallii J. R. Grisham 1969-8-25 Siskiyou Tom George property, Yreka. 0 Comment
  HSC29245  Romanzoffia sitchensis Frederick W. Oettinger 1968-9-1 650 Siskiyou Marble Mtn. Wilderness Area, S of Abbott's Lake 1799 Comment
  UC164064  Rosa eglanteria Geo. D. Butler 1910-7-31 1802 Siskiyou dry land near Yreka Comment
  CAS-BOT-BC146758  Rosa gymnocarpa Doris K. Kildale 1929-5-31 9126 Siskiyou Cecilville, south fork of Salmon River Comment
  RSA237791  Rosa gymnocarpa Frederick W. Oettinger 1967-7-30 223 Siskiyou Outlet stream N end of Abbotts Lake, about 200 yards down from the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  UC914728  Rosa gymnocarpa A. A. Heller 1915-8-24 12203 Siskiyou Metcalf's Ranch Mt. Eddy (ne base of mt.) 1188 Comment
  UCD77976  Rosa gymnocarpa Robert E. Preston 2002-7-12 1912 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, S slope of Rainbow Mountain 1893 Comment
  CAS-BOT-BC146797  Rosa gymnocarpa var. serpentina Alice Eastwood 1912-8-28 1960 Siskiyou Sisson Comment
  UCR70838  Rosa nutkana L. C. Wheeler 1934-10-27 3349 Siskiyou Siskiyou Mtns., Shasta River 1 mi. below Yreka Creek 732 Comment
  CAS-BOT-BC147067  Rosa pisocarpa Alice Eastwood 1912-9-4 2099 Siskiyou Sisson Comment
  CAS-BOT-BC147070  Rosa pisocarpa Dorothy Parker 1948-8-19 s.n. Siskiyou Summit of Scott Mountain 1582 Comment
  HSC29495  Rosa pisocarpa Frederick W. Oettinger 1969-8-16 1408 Siskiyou Marble Mtn. Wilderness Area, Wire grass meadow near English Lake 1799 Comment
  SEINET10450115 Image available Rosa pisocarpa Edwin B. Copel 1903-9-8 Copeland 3875 Siskiyou Mt. Eddy. 1463 Comment
  JEPS45695  Rosa pisocarpa subsp. pisocarpa W. L. Jepson July 1894 13894 Siskiyou Sisson Comment
  HSC74836  Rosa rubiginosa J. P. Smith, J. O. Sawyer 1978-7-3 10005 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  CAS-BOT-BC147139  Rubus glaucifolius Louis C. Wheeler 1934-8-31 3233 Siskiyou Bear Creek off West Fork Beaver Creek, Siskiyou Mts. 1767 Comment
  CAS-BOT-BC147981  Rubus leucodermis Carl B. Wolf 1927-8-27 1134 Siskiyou At mouth of Crawford Creek, Klamath River Comment
  UC1409363  Rubus leucodermis Frederick W. Oettinger 1969-7-28 1079 Siskiyou nnw Little English Lake (High Lake Basins in vicinity of English Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  HSC27673  Rubus parviflorus Carl W. Mize 1972-6-8 31 Siskiyou Along main trail near Deer Lick Creek 351 Comment
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Feb 21 2013
  HSC69026  Rubus parviflorus Maralyn A. Renner 1980-7-28 2189 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  RSA237646  Rubus parviflorus Frederick W. Oettinger 1968-8-18 565 Siskiyou E side of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. Comment
  SEINET5710611  Rudbeckia klamathensis Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7699 Siskiyou Scott Mts. Collected along Road 17, 10 mi. SW from the intersection of I-5 and Stewart Spring Rd.; Scott Mountains 1757 Comment
  UC829536  Rudbeckia klamathensis Alice Eastwood 1912-8-30 2047 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC433403  Rumex crispus W. B. Cooke; V. G. Cooke; Bob Frenkel 1963-7-12 34325 Siskiyou Memorial Highway below McBride Springs, Mt. Shasta Comment
  UC164027  Rumex maritimus Geo. D. Butler 1910-9-12 1877 Siskiyou Butte Valley 1280 Comment
  UC54227  Rumex occidentalis H. M. Hall and E. B. Babcock Jun 1903 4065 Siskiyou Sisson Sierra Nevada Mountains, Mount Shasta 1066 Comment
  CDA23189  Rumex stenophyllus R. Pederson, G. Pederson 1979-10-1 108 Siskiyou Lower Klamath National Wildlife Refuge, beside gate at shop entrance. Comment
  HSC17612  Rumex triangulivalvis R. C. Wunner 1965-6-22 266 Siskiyou Lava Beds NM, 1 mi. NW of Stronghold 1220 Comment
  HSC44957  Sagina saginoides J. O. Sawyer 1978-6-16 3228 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  UC482249  Salix Mrs. H. P. Bracelin 1931-6-19 422 Siskiyou ca. 16 km. n.w. of Shasta City; Mt. Eddy 1500 Comment
  CAS-BOT-BC103537  Salix commutata Doris K. Kildale 1928-8-20 6583 Siskiyou Lily Pad Lake near Hancock Lookout Trail to Marble Mt. 2133 Comment
  JEPS38523  Salix eastwoodiae Geo. D. Butler 1908-8-7 152 Siskiyou Lake at head of Wooly Creek 1676 Comment
  UC922325  Salix eastwoodiae Annie M. Alexander and Louise Kellogg 1949-7-21 5828 Siskiyou Paradise Lake; Marble Mts. 1920 Comment
  SJSU167  Salix exigua Mrs. H. P. Bracelin 1931-6-22 477 Siskiyou Pit R at Gibson flag station, 125km N of Red Bluff 457 Comment
  LA208556  Salix exigua var. exigua W. B. C.; 1940-6-20 15158 Siskiyou along the Pacific Highway in the Klamath River gorge 609 Comment
  CAS-BOT-BC107781  Salix hindsiana Mrs. H. P. Bracelin 1931-6-22 477 Siskiyou Pit River at Gibson flat station, 125 km. north of Red Bluff 450 Comment
  RSA211241  Salix jepsonii William J. Ferlatte 1967-7-9 683 Siskiyou Kidd Creek Trail. Trinity Alps. 1677 Comment
  RSA101634  Salix laevigata Thomas Howell 1889-4-14 1393 Siskiyou Hornbrook. Comment
  SD1000  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-21 473 Siskiyou North base of Mount Eddy, about 13 km northwest of Shasta City, flat beside creek, at bridge, about 1.3 km east of Burney Mill 1110 Comment
  CAS-BOT-BC107065  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 409 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1425 Comment
  CAS-BOT-BC107085  Salix lasiolepis Mrs. H. P. Bracelin 1936-9-3 853 Siskiyou 11 miles N.W. from Mt. Shasta City, and about 2 miles E. of Burney Mill, N. base of Mt. Eddy 1127 Comment
  UC482246  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 420 Siskiyou about 16 km nw Shasta City (ne side of mt., edge of stream above Metcalf ranch house); Mount Eddy 1515 Comment
  CAS-BOT-BC125067  Salix ligulifolia L. S. Smith 1931-6-7 3 Siskiyou Tahoe National Forest, Mt. Shasta, Middle Fork American River near Chalf Bluff Xing 1066 Comment
  POM107035  Salix lucida subsp. lasiandra Geo. D. Butler 1910-4-13 1171 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC125682  Salix melanopsis H. A. Thomas; J. H. Thomas 1954-7-23 4457 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Along north bank of S. Fork of Salmon River just west of Blind Horse Creek 883 Comment
  UC481731  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou near hwy. at Flume Creek Camp (Flume Creek - tributuary of Pit River); Flume Creek 555 Comment
  CDA21576  Salix scouleriana Marianne Cabot 2008-8-12 PDR# 1413931 Siskiyou Ft. Jones, 6711 Mill Creek Rd. 0 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
  SD879  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 444 Siskiyou East side of Mount Eddy, about 17 km northwest of Shasta City, above stream in Wagon Creek Canyon, about 1 km up from Metcalf Ranch House 1170 Comment
  UC482265  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 444 Siskiyou ca. 17 km. n.w. Shasta City (above stream in Wagon Creek Canyon, ca. 1 km. up from Metcalf ranch house, e. side of Mt. Eddy); Mt. Eddy Comment
  HSC91170  Salix sitchensis Jennifer Whipple 1976-9-4 1800 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  HSC36220  Salsola tragus John Rehling 1974-8-24 39 Siskiyou Along Hwy. 3, 1.5 mi. N of Fort Jones Comment
  CAS-BOT-BC238879  Sambucus nigra subsp. caerulea Geo. D. Butler 1910-5-29 1425 Siskiyou Near Yreka Comment
  CAS-BOT-BC238882  Sambucus nigra subsp. caerulea Gilbert Muth 1965-8-2 s.n. Siskiyou 1/2 between Gate & Lower Sky High Lakes Comment
  HSC22467  Sambucus racemosa var. racemosa J. O. Sawyer 1969-7-18 1369 Siskiyou Above S Russian Creek. 2012 Comment
  HSC287  Sambucus racemosa var. racemosa William J. Ferlatte 1967-8-22 1080 Siskiyou Caribou Basin. 1982 Comment
  JEPS1000  Sanicula graveolens W. L. Jepson July 17 - 22, 1902 2068 Siskiyou Devil's Backbone, Western Siskiyou County Devil's Backbone 1828 Comment
  UC1258448  Sanicula graveolens Maralyn A. Renner 1980-7-23 1831 Siskiyou about 1 mi e of Cook and Green Pass ( Klamath National Forest, Pacific Crest Trail); Klamath National Forest, Pacific Crest Trail 1752 Comment
  UC165254  Sanicula graveolens Geo. D. Butler 1910-7-13 1778 Siskiyou Shackleford Creek 1219 Comment
  HSC77242  Sanicula graveolens L. P. Janeway 1983-7-17 424 Siskiyou Poker Flat, E edge of upper portion of meadow 1524 Comment
  RSA471483  Sanicula graveolens M. B. Dunkle 1944-6-27 9043 Siskiyou Siskiyou Natl. Forest Comment
  SEINET13945236 Image available Sanicula nevadensis Lincoln Constance, Ren Hwa Shan 1946-1 3059 Siskiyou East bank of Sacramento River at Dunsmuir, alt. 2300 ft 701 Comment
  UC166551  Saxifraga californica Geo. D. Butler 1909-4-4 583 Siskiyou near Yreka Comment
  RSA211110  Saxifraga nidifica William J. Ferlatte 1966-6-22 73 Siskiyou Josephine Lake basin; Trinity Alps. 1677 Comment
  UC144314  Saxifraga oregana A. A. Heller 1905-6-15 8031 Siskiyou Sisson Comment
  JEPS13971  Saxifragopsis fragarioides C. G. Pringle 1882-9-5 Siskiyou cliffs overhanging Castle Lake 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
  CAS-BOT-BC111101  Scirpus microcarpus Copeland 1903-8-14 3722 Siskiyou Sisson Comment
  HSC33327  Scirpus microcarpus William J. Ferlatte 1974-7-14 1530 Siskiyou Big Flat near S Fork of Salmon River, W of campground 1509 Comment
  SEINET8390357  Scirpus robustus G. D. Butler 1910-8-21 1847 Siskiyou Shasta Valley. Comment
  JEPS11422  Scrophularia lanceolata Geo. D. Butler 1908-8-24 436 Siskiyou Russian Creek at Eldredge Corral 1219 Comment
  POM69573  Scutellaria antirrhinoides Geo. D. Butler 1910-5-30 1430 Siskiyou Humbug Creek. Comment
  JEPS26913  Sedum laxum subsp. heckneri P. C. Hutchison 1961-5-22 2036 Siskiyou 5.7 mi s Happy Camp (2.7 mi n of Clear Creek on highway US299, w side of Klamath River); w side Klamath River, n of Clear Creek, s of Happy Camp Comment
  UC1409249  Sedum laxum subsp. heckneri Frederick W. Oettinger 1968-8-16 535 Siskiyou n Hancock Lake (near summit Little Medicine Mountain, Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, western Siskiyou); Salmon Mountains, nr summit Little Medicine Mountain 2103 Comment
  CAS-BOT-BC278105  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
  UC455356  Sedum obtusatum subsp. boreale I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat (Mt. Bradley); , near Shasta Retreat 1828 Comment
  UCR37579  Sedum obtusatum subsp. boreale L. P. Janeway 1983-7-3 374 Siskiyou Ridgetop NW of Poker Flat. (Siskiyou crest) 1585 Comment
  JEPS40927  Sedum obtusatum subsp. boreale E. K. Balls and P. C. Everett 915 Siskiyou Indian Creek Road to O'Brien (Oregon) 20 mi nw of Route 96 at Happy Camp; nw of Route 96 at Happy Camp Comment
  POM229949  Sedum oregonense L. C. Wheeler 1934-8-15 3156 Siskiyou E Fork Horse Creek, Siskiyou Mts. Mt. Diablo Mer. 1220 Comment
  RSA0083653  Sedum oregonense L. C. Wheeler 1963-8-25 8271 Siskiyou South side of Preston Peak: Head Rattlesnake Creek. 1829 Comment
  CAS-BOT-BC63901  Sedum spathulifolium Alice Eastwood 1923-5-20 11859 Siskiyou Shasta Springs Comment
  RSA603123  Sedum stenopetalum subsp. stenopetalum L. C. Wheeler 1934-8-14 3142 Siskiyou E end White Mt.; Siskiyou Mts. (Mt. Diablo Mer.) 1829 Comment
  RSA641068  Selaginella wallacei Louis Cutter Wheeler 1963-9-11 8388 Siskiyou Siskiyou Mountains: Elk Hole, Dillon Creek. . Comment
  RSA0013319  Senecio aronicoides Albert M. Vollmer, L. Beane 1951-5-31 s.n. Siskiyou Scott Mountain Comment
  SEINET196520  Senecio aronicoides R. Tofarud, J. M. Tucker 1948-8-2 1763 Siskiyou Panther Meadows south slode on Mt. Shasta 2408 Comment
  CDA8599  Senecio canus T. C. Fuller 1977-6-14 20211 Siskiyou North of Highway 97, 3 km southwest of Deer Mountain Lodge. 0 Comment
  HSC76771  Senecio hydrophiloides K. T. Stillman 1976-8-7 373 Siskiyou Marble Mtn. Wilderness Area; trail from Black Mtn. Camp to Jump off point 1951 Comment
  JEPS82277  Senecio hydrophilus Roger Raiche 1983-8-14 30626 Siskiyou between road of North Mt. Shasta Blvd (900 block) and Shasta City railroad tracks 975 Comment
  CAS-BOT-BC363744  Senecio hydrophilus T. C. Fuller 1958-9-12 1246 -58 Siskiyou Hwy 99, 5 mi S/Yreka Comment
  CHSC96023  Senecio integerrimus var. exaltatus L. P. Janeway 2006-7-4 8797 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. 1838 Comment
  CAS-BOT-BC364421  Senecio triangularis Marion Ownbey; Ruth P. Ownbey 1938-7-20 1759 Siskiyou 1 mile northwest of Dry Lake Lookout, summit of the Siskiyou Mts. Comment
  CAS-BOT-BC364449  Senecio triangularis H. A. Thomas; J. H. Thomas 1954-7-24 4501 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  HSC69084  Senecio triangularis Maralyn A. Renner 1980-8-4 2217 Siskiyou Flint Valley 1390 Comment
  HSC91256  Senecio triangularis Jennifer Whipple 1977-7-20 2005 Siskiyou N slopes of Mt. Eddy 2287 Comment
  UC163869  Senecio triangularis Geo. D. Butler 1908-8-9 340 Siskiyou Marble Valley Comment
  JEPS25663  Senecio triangularis Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7306 Siskiyou 4 air mi nne Preston Peak (just e of Del Norte County line, watershed of Indian Creek, meadow at Twin Valley); Siskiyou Mts., Twin Valley, Indian Creek 1493 Comment
  JEPS105152  Sidalcea asprella Dean W. Taylor 1993-7-30 13987 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 mi E of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
  UC1483451  Sidalcea glaucescens Maralyn A. Renner 1980-6-23 997 Siskiyou West Fork Seiad Creek , Seiad Valley Quad. (Klamath National Forest) 877 Comment
  RSA105512  Sidalcea hartwegii Douglas Barbe 1955-7-26 271 Siskiyou Along a dry ditch on the northwest slope of Scott Mt 1829 Comment
  UC1013004  Sidalcea malviflora subsp. asprella C. L. Hitchcock 1952-6-30 19640 Siskiyou on road to Orleans about 30 mi sw Happy Camp; sw of Happy Camp on rd to Orleans Comment
  UCR21114  Sidalcea malviflora subsp. celata T. W. Fisher, Earl Oatman, R. E. Orth 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  HSC46145  Sidalcea malviflora subsp. nana J. P. Smith, Steve Selva 1970-7-15 4356 Siskiyou Baldy Mtn. Lookout Station 1723 Comment
  CDA36497  Sidalcea oregana J. R. Grisham 1961-6-14 Siskiyou Yreka 0 Comment
  SEINET1004223  Sidalcea oregana subsp. spicata Mark Fishbein, Lane Greer 2006-1 5881 Siskiyou Paynes Springs, about 2 mi southeast of Medicine Lake. 1980 Comment
  UC164432  Sidalcea oregana subsp. spicata Geo. D. Butler 1909-6-22 905 Siskiyou Goosenest Mountain foothills of Goosenest Mountain 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
  UC871511  Sidalcea oregana subsp. spicata A. A. Heller 1916-7-20 12474 Siskiyou near Wagon Creek Falls (e side Mt. Eddy); , near Wagon Creek Falls 1524 Comment
  POM84656  Sidalcea oregana subsp. spicata Geo. D. Butler 1910-7-17 1728 Siskiyou No location given Comment
  LA212243  Sidalcea ranunculacea Geo. E. Julian; Bill Baker 1962-7-20 s.n. Siskiyou Mount Shasta. 1523 Comment
  JEPS100205  Silene campanulata subsp. glandulosa Dean W. Taylor 2002-6-10 18119 Siskiyou Scott Mountain, Forest Road 40N08 0.25 miles E of the junction with Highway 3 (3 miles NE from Scott Mountain summit) 1341 Comment
  SBBG2016  Silene campanulata subsp. glandulosa H. and M. Dearing 1939-6-3 3530 Siskiyou Spring Flat, Klamath Nat Forest Comment
  RSA120891  Silene campanulata subsp. greenei Milo S. Baker 1957-6-16 13157 Siskiyou Trip to Scott Mt. after turn off near Callahan. Comment
  UC3735338  Silene dichotoma Geo. D. Butler 1909-8-17 961 Siskiyou near Yreka; near Yreka Comment
  HSC268  Silene douglasii William J. Ferlatte 1967-8-21 1069 Siskiyou Sawtooth Ridge between Caribou Basin and Little S Fork Lake 2287 Comment
  UC1190192  Silene douglasii Ira L. Wiggins 1955-7-29 13580 Siskiyou trail to Caribou Lake , trail to Caribou Lake (Summit of ridge above Thompson Creek) 1999 Comment
  UC8439  Silene grayi State Survey 1862-9-15 1373 Siskiyou Mt. Shasta 2377 Comment
  CAS-BOT-BC388961  Silene grayi C. L. Hitchcock; J. S. Martin 1939-7-6 5227 Siskiyou Peak above and north of Divide of Siskiyou Mts., on Takilma-Happy Camp road 1828 Comment
  RSA184741  Silene grayi Gilbert Muth 1965-8-17 231 Siskiyou Back side of Black Mountain, Marble Mountains. Comment
  CAS-BOT-BC389435  Silene lemmonii J. H. Thomas 1954-5-14 4178 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, Southwestern Siskiyou County 1219 Comment
  HSC4220  Silene lemmonii W. L. Jepson Jul 1894 Siskiyou Sisson (now the town called Mt. Shasta) Comment
  HSC99987  Silene lemmonii Thomas W. Nelson 2005-7-16 9379 Siskiyou Along F. S. Rd. 42N16. 1337 Comment
  UCD78002  Silene menziesii Robert E. Preston 2002-7-11 1899 Siskiyou Klamath National Forest, Trout Creek Meadow 1505 Comment
  CAS-BOT-BC389533  Silene menziesii David D. Keck 1938-8-7 4853 Siskiyou Scott Mountain Lodge, 2 mi. E. of Callahan, on E. Fork of Scott River at junction with Mill Creek 1000 Comment
  RSA610007  Silene parryi L. C. Wheeler 1935-6-27 3602 Siskiyou Head of Etna Creek, Marble Mountains. 1799 Comment
  HSC68010  Silene vulgaris J. P. Smith, Steve Selva 1970-6-15 3893 Siskiyou Oak Bottom Campground near Somes Bar. 229 Comment
  CAS-BOT-BC75160  Sisymbrium altissimum Alice Eastwood 1912-7-15 1125 Siskiyou McCloud. Comment
  CHSC91388  Sisyrinchium bellum Lowell Ahart; John Dittes 2005-6-10 12102 Siskiyou Steep slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC67458  Sisyrinchium bellum J. P. Smith, Steve Selva 1970-7-27 4517 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  SEINET10607333  Sitanion longifolium Edwin B. Copel 1903-7-3 Copeland 3536 Siskiyou Klamathon. Comment
  JEPS62128  Smilacina racemosa Geo. D. Butler 1908-8-24 94 Siskiyou Eldredge Corral Russian Creek 1219 Comment
  UC1037431  Smilacina racemosa Douglas Barbe 1955-8-1 323 Siskiyou Mt. Bolivar Scott Mountains (summit) 2468 Comment
  POM109214  Smilax jamesii Geo D. Butler 1910-6-6 1466 Siskiyou Quartz Valley Comment
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Mar 29 2015
  CHSC72241  Solanum dulcamara Vernon H. Oswald; Lowell Ahart 1998-9-16 9637 Siskiyou Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi east of Hwy. 97. 1243 Comment
  HSC42902  Solanum parishii J. O. Sawyer, Ken Stillman 1976-5-29 2730 Siskiyou Junction of Specimen Creek and Little N Fork of the Salmon River 732 Comment
  CAS-BOT-BC157047  Solanum umbelliferum W. B. Cooke 1940-6-20 15180 Siskiyou Along the Pacific Highway in the Klamath Gorge Comment
  CAS-BOT-BC365559  Solidago elongata Doris K. Kildale 1928-8-18 6459 Siskiyou Head of north fork of Salmon River at Finley's Upper Camp Comment
  CAS-BOT-BC365578  Solidago elongata Copeland 1903-8-12 3823 Siskiyou Sisson Comment
  HSC2402  Solidago elongata William J. Ferlatte 1966-8-18 415 Siskiyou Along the South Fork of the Salmon River between the campground and Carter's 1524 Comment
  UC830204  Solidago elongata Lewis S. Rose 1937-7-26 37604 Siskiyou McCloud 1005 Comment
  CAS-BOT-BC339858  Solidago multiradiata Alice Eastwood 1912-8-30 2048 Siskiyou Mount Eddy Comment
  JEPS95389  Solidago multiradiata Vernon H. Oswald and L. Ahart 1994-8-1 6419 Siskiyou T39N R5W SE1/4 Sec. 16, 4720 ft, Yellow Pine Forest. Forest Rd. 26 paralleling the South Fork of the Sacramento River, 0.3 mi E of Forest Rd. 40N43, 9.0 mi SW of the dam at Lake Siskiyou 1438 Comment
  RSA14494  Solidago spectabilis Elmer I. Applegate 1923-8-21 3916 Siskiyou Willow Creek, south end of Lower Klamath marsh. Comment
  CAS-BOT-BC365247  Solidago velutina subsp. californica Edward Lee 1934-8-12 1046 Siskiyou 1/4 mile west of mouth of Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 426 Comment
  CDA7673  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
  HSC90601  Sorbus californica Jennifer Whipple 1976-7-9 1390 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2226 Comment
  UC164082  Sorbus californica Geo. D. Butler 1908-8-26 282 Siskiyou head of Eton Creek; Salmon Mountains Comment
  UC642589  Sorbus californica W. B. Cooke 1939-6-30 13576 Siskiyou along Sisson Southern Trail; Mount Shasta 1981 Comment
  CAS-BOT-BC158933  Sorbus scopulina W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Mountains Comment
  POM172661  Sparganium angustifolium Geo D. Butler 1910-7-13 1766 Siskiyou Shackleford Creek 1220 Comment
  CAS-BOT-BC390719  Spergularia rubra Doris K. Kildale 1928-7-25 5882 Siskiyou Klamath River - Macks Creek near Hamburg 457 Comment
  CAS-BOT-BC390724  Spergularia rubra M. S. Baker; Frank Nutting 1894-5-20 s.n. Siskiyou Near Redding Comment
  RSA30424  Spiraea densiflora var. splendens A. A. Heller 1916-7-22 12484 Siskiyou E side of Mt Eddy. 1677 Comment
  SEINET3157632  Spiraea discolor G. D. Butler 1910-7-6 1645 Siskiyou Shackleford Creek 914 Comment
  CAS-BOT-BC149685  Spiraea douglasii Geo. D. Butler 1908-8-2 284 Siskiyou Shackleford Creek 1219 Comment
  POM141116  Spiraea douglasii E. B. Copeland 1903-8-12 3836 Siskiyou Sisson. 1067 Comment
  UC375390  Spiraea douglasii Geo. D. Butler 1908-8-2 284 Siskiyou Log Lake; Shackleford Creek Comment
  CAS-BOT-BC152557  Spiraea splendens Geo. D. Butler 1910-7-9 1710 Siskiyou Wooly Creek 1676 Comment
  UC13517  Spiranthes porrifolia W. C. Blasdale 1894-7-31 Siskiyou Sissons Comment
  SEINET3163886  Spraguea umbellata M. S. Baker 1893-1 sn Siskiyou Fall River Valley Comment
  UCLA70899  Stachys ajugoides var. rigida Louis C. Wheeler 1934-6-4 2631 Siskiyou Humbug Gulch Siskiyou Mts., Horse Creek 609 Comment
  HSC63578  Stachys rigida J. P. Smith, J. O. Sawyer 1971-9-18 4843 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  RSA298323  Stachys rigida subsp. rigida J. P. Smith, Steve Selva 1970-7-16 4405 Siskiyou Beaver Creek Campground 823 Comment
  CAS-BOT-BC181421  Stellaria calycantha G. J. Muth 1969-8-12 1375 Siskiyou Second Valley 2225 Comment
  HSC19087  Stellaria crispa J. O. Sawyer 1969-8-5 1766 Siskiyou W of Little Duck Lake 2073 Comment
  CAS-BOT-BC516470  Stenanthium occidentale Louis C. Wheeler 1934-8-17 3181 Siskiyou North side White Mt., Siskiyou Mts. 1828 Comment
  UC165400  Stephanomeria lactucina Geo. D. Butler 1909-7-25 959 Siskiyou Highland Mine Comment
  UC1540142  Stephanomeria tenuifolia Dean Wm. Taylor, Glenn L. Clifton, and R. Doug Stone 1987-8-7 9256 Siskiyou Caldwell Butte Lava Beds National Monument 1499 Comment
  HSC42893  Stephanomeria virgata Ken Stillman 1976-8-15 407 Siskiyou Clearcut at junction of Specimen Creek and Little N Fork of the Salmon River 732 Comment
  CAS-BOT-BC375942  Stephanomeria virgata Louis C. Wheeler 1934-7-17 2912 Siskiyou Klamath National Forest. Cottonwood Creek 1036 Comment
  HSC13337  Stipa comata R. C. Wunner 1965-6-22 269 Siskiyou Lava Beds N.M., 2 mi. N of Devils Homestead Overlook Comment
  HSC19243  Stipa occidentalis var. occidentalis J. O. Sawyer 1969-7-25 1552 Siskiyou S of High Lake 2210 Comment
  CAS-BOT-BC87841  Streptanthus tortuosus Alice Eastwood 1921-7-29 10961 Siskiyou Little Mount Hoffman. 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
  JEPS54036  Streptanthus tortuosus W. L. Jepson 1907-7-4 2818 Siskiyou Shackleford Canyon Marble Mt. region Comment
  RSA237371  Streptanthus tortuosus Frederick W. Oettinger 1967-8-26 333 Siskiyou 1/8 mile from Diamond Lake on trail to English Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. Comment
  UCSB27379  Streptanthus tortuosus Wilken, Dieter 1969-7-26 Siskiyou Above summit of Mt. Shasta Ski Bowl Road, south slope of Mt. Shasta 3200 Comment
  RSA429547  Streptanthus tortuosus L. S. Rose 1934-4-20 34231 Siskiyou Junction of Klamath River and Shasta River. 915 Comment
  HSC18963  Streptanthus tortuosus var. tortuosus J. O. Sawyer 1969-7-25 1533 Siskiyou SE facing upper slope W of Sugar Lake 1997 Comment
  UC1409355  Streptanthus tortuosus var. tortuosus Frederick W. Oettinger 1968-8-5 406 Siskiyou ridges between English Peak and Diamond Lake; Salmon Mountains, Marble Mountain Wilderness Area 2072 Comment
  HSC35793  Streptopus amplexifolius J. O. Sawyer 1969-7-18 1420 Siskiyou Head of S Russian Creek 1829 Comment
  HSC44364  Streptopus amplexifolius Maralyn O'Meara 1973-6-24 231 Siskiyou Statute Lake Creek where it is crossed by Music Creek logging rd., 0.25 mi. from confluence of Statute Lake Creek and Music Creek 1829 Comment
  RSA183493  Streptopus amplexifolius J. M. Tucker 1963-8-19 3771 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area. 1951 Comment
  RSA68948  Streptopus amplexifolius A. E. Culbertson 1943-7-1 10 Siskiyou Near Forest Service Campground about a mile downstream from Castle Lake on road to town of Shasta. On a north slope of a 6600 eastern spur of Trinity Mountains and 1500 above Sacramento River., Within 9 air miles of its headwaters to the west. Mt. Shasta 13 miles to the northeast. 1524 Comment
  UC164041  Streptopus amplexifolius var. americanus Geo. D. Butler 1908-8-8 97 Siskiyou Marble Valley Comment
  HSC69039  Swertia albicaulis Maralyn A. Renner 1980-8-7 2360 Siskiyou Ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  HSC61795  Swertia albicaulis var. nitida Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC234779  Symphoricarpos mollis John Thomas Howell 1939-8-2 14947 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC234782  Symphoricarpos mollis H. A. Thomas; J. H. Thomas 1954-7-22 4447 B Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Rush and Big Bend Creeks, 0.25 - 0.5 miles N of S Fork of Salmon River 975 Comment
  CAS-BOT-BC234797  Symphoricarpos mollis John Thomas Howell 1937-7-23 13362 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  JEPS13656  Symphoricarpos mollis W. L. Jepson Aug 1894 Siskiyou Shasta Springs Comment
  CAS-BOT-BC245773  Symphoricarpos rotundifolius Wm. Bridge Cooke 1938-8-23 11578 Siskiyou Above Bolam Creek, Mount Shasta 2590 Comment
  CAS-BOT-BC97883  Symphyotrichum eatonii Elmer I. Applegate 1923-9-7 3970 Siskiyou Doggett Ridge, south slope of Siskiyou Mountains Comment
  CAS-BOT-BC98441  Symphyotrichum spathulatum Wm. Bridge Cooke 1938-9-8 11607 Siskiyou Mount Shasta, Little Red Butte 2590 Comment
  JEPS16961  Symphyotrichum spathulatum Peter H. Raven 1956-9-5 10449 Siskiyou along a stream near the North Fork of the Sacramento River North Fork of the Sacramento River 2194 Comment
  RSA86745  Taeniatherum caput-medusae L. C. Wheeler 1935-6-4 3546 Siskiyou Grenada, Shasta Valley. 793 Comment
  UC642524  Taraxacum officinale unknown 1939-6-23 13533 Siskiyou Wagon Camp, lower meadow Mount Shasta 1737 Comment
  UC615192  Taraxia tanacetifolia Beryl O. Schreiber 1932-7-18 443 Siskiyou near Dorris Comment
  UC725378  Taraxia tanacetifolia A. A. Heller 1938-7-13 15265 Siskiyou along hwy just s Bray Comment
  CAS-BOT-BC85233  Taxus brevifolia W. R. Dudley 1899-8-14 s.n. Siskiyou Near Pig Creek, McCloud Comment
  UC1190267  Taxus brevifolia Ira L. Wiggins 1955-7-24 13482 Siskiyou diversion dam China Creek 1158 Comment
  UC8  Taxus brevifolia W. H. Brewer 1862-9-9 1366 Siskiyou near Mt. Shasta; Upper Sacramento Valley Comment
  SEINET11739097  Taxus brevifolia R. Gankin, Hildreth, W. R. 1967-1 1186 Siskiyou near trail to Marble Mountain Wilderness Area (Yellow Jacket Ridge) N of Sawyers Bar 1402 Comment
  SD88343  Tellima grandiflora Darley F. Howe 1972-7-6 Siskiyou 1.3 miles south of Oregon State line on road to Happy Camp 1646 Comment
  SJSU6490  Tellima grandiflora R. W. Trivelpiece 1972-6-4 106 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp 1280 Comment
  HSC100276  Thelypodium brachycarpum J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13074 Siskiyou Klamath National Forest, along road to botanical area off Forest Service Road 40N24 to Crater Lake. 1860 Comment
  HSC29434  Thelypteris nevadensis Frederick W. Oettinger 1968-9-4 694 Siskiyou Marble Mtn. Wilderness Area, SW shoreline of Abbotts Lake 1723 Comment
  UC1222602  Thermopsis robusta Joseph P. Tracy 1950-7-18 19220 Siskiyou Prospect Hill 1219 Comment
  UC1483564  Thlaspi montanum var. montanum Maralyn A. Renner 1980-6-26 1153 Siskiyou Flint Valley , Dillon Mtn. Quad., Flint Valley (Klamath National Forest) 1389 Comment
  HSC46188  Thysanocarpus curvipes Jennifer Whipple 1977-4-30 1874 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  UC10993  Thysanocarpus curvipes T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  HSC62274  Tiarella trifoliata var. unifoliata Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  HSC31129  Tiarella trifoliata var. unifoliata J. O. Sawyer 1971-8-19 2453 Siskiyou On trail to Marble Valley near Lovers Camp. 1311 Comment
  RSA237928  Tofieldia glutinosa subsp. occidentalis Frederick W. Oettinger 1968-8-1 340 Siskiyou South side of Little Hancock Lake. The Salmon Mountains. The high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area. 2043 Comment
  RSA237931  Tofieldia glutinosa subsp. occidentalis Frederick W. Oettinger 1968-8-3 371 Siskiyou Base camp, Hancock Lake. The Salmon Mountains: the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area 2012 Comment
  JEPS49716  Tolmiea diplomenziesii W. L. Jepson 1907-7-19 2940 Siskiyou Happy Camp Trail Siskiyou Mts. (headwaters of Indian Creek) Comment
  HSC30920  Tolmiea diplomenziesii Melinda F. Denton 1973-6-27 2816 Siskiyou Klamath National Forest on 18N30, 1 mi. E of jct. with rd. to Poker Flat, 4 mi. S of OR-CA border 1250 Comment
  RSA264992  Tolmiea menziesii G. L. Clifton 1975-7-29 s.n. Siskiyou Copper Butte. Near Seiad Valley. 1415 Comment
  HSC70529  Tonella tenella J. P. Smith 1973-5-5 6509 Siskiyou Along Cook and Green Pass Rd. Comment
  SEINET5357974  Torreyochloa pauciflora E. Palmer 1892-1 2615 Siskiyou Near Mt. Shasta Comment
  HSC6293  Tragopogon dubius R. C. Wunner 1965-7-9 359 Siskiyou California Lava Beds National Monument; Crescent Butte. 0.1 mi. on road to Mammoth Crater from junction of road headquarters 1448 Comment
  UCR110591  Trautvetteria caroliniensis var. occidentalis L. C. Wheeler 1963-8-28 8289 Siskiyou Siskiyou Mtns., Clear Creek c. 1 mile below West Fork 640 Comment
  OBI55487  Trichostema simulatum David J. Keil, Kathleen Keil 1992-7-21 23521 Siskiyou Klamath Natl Forest SE of Callahan on hwy 3, 2.1 I NW of Scott Mtn summit Comment
  HSC68413  Trientalis latifolia Maralyn A. Renner 1980-7-4 1407 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  SBBG15778  Trientalis latifolia D. Myrick 1961-6-21 305 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  RSA78688  Trifolium eriocephalum Philip A. Munz 1952-7-2 17883 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1494 Comment
  UCD107929  Trifolium eriocephalum subsp. eriocephalum Robert E. Preston 1995-6-18 873 Siskiyou Ca. 3 miles ESE of Hornbrook. Adjacent to Ager Road. 701 Comment
  CAS-BOT-BC219042  Trifolium howellii Doris K. Kildale 1928-8-18 6434 Siskiyou Finley's Upper Camp near head of north fork of Salmon River 1676 Comment
  UCD111257  Trifolium longipes AHM 1953-7-29 KNF 15 Siskiyou Trinity county line. Steavale Canyon. 1524 Comment
  UCD78050  Trifolium longipes subsp. hansenii Robert E. Preston 2001-6-23 1604 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 2011 Comment
  HSC154  Trifolium pratense William J. Ferlatte 1966-8-3 257 Siskiyou Mtn. Meadow Ranch 1524 Comment
  UCD109300  Trifolium productum A. H. Murphy 1958-8-7 58 N Siskiyou Deep Lake, Marble Mts. 1889 Comment
  RSA582636  Trifolium repens Louis C. Wheeler 1934-6-8 2660 Siskiyou North Hungry Creek off Hungry Creek Comment
  JEPS107658  Trifolium retusum Lowell Ahart, John Dittes 2005-6-10 12124 Siskiyou Northeast of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada 785 Comment
  JEPS75360  Trifolium variegatum Geo. D. Butler 1909-6-5 797 Siskiyou near Yreka (McNutty's field) Comment
  UC631385  Trifolium variegatum var. melananthum A. A. Heller 1919-6-25 13269 Siskiyou Compton's prairie north base of Mt, Eddy 1158 Comment
  UC164234  Trifolium wormskioldii Geo. D. Butler 1909-6-26 915 Siskiyou McNutty's Field near Yreka Comment
  UC726465  Trifolium wormskioldii A. A. Heller 1919-6-30 13285 Siskiyou near Durny's Mill Comment
  SEINET10577454  Trifolium wormskioldii var. wormskioldii Wiegand 1921-8-23 WIEGAND 1389 Siskiyou Marshy subalkaline soil, south of Montague. Comment
  SEINET3151091  Triglochin maritima G. D. Butler 1910-8-21 1846 Siskiyou Shasta Valley Comment
  CAS-BOT-BC519595  Trillium W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Mountain Comment
  CAS-BOT-BC520839  Trillium albidum Geo. D. Butler 1909-4-14 669 Siskiyou Humbug Creek Comment
  HSC69029  Trillium ovatum Maralyn A. Renner 1980-7-28 2184 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  UCD82887  Tripleurospermum Steve Orloff 2009-10-1 s. n. Siskiyou Siskiyou County. Comment
  RSA238972  Trisetum canescens Frederick W. Oettinger 1969-8-3 1151 Siskiyou Halfway spring. trail English Lake to Diamond Lake; Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA238976  Trisetum spicatum Frederick W. Oettinger 1968-9-6 734 Siskiyou Trail southeast of Tom's Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  RSA352885  Trisetum spicatum M. B. Dunkle 1945-1 9318 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  UC1483498  Trisetum spicatum J. Sawyer and J. Cole 1980-7-19 3693 Siskiyou near FS Road 45N05 (in center of Section 11); Klamath National Forest, Medicine Lake Quad. 2017 Comment
  CAS-BOT-BC133491  Triteleia crocea G. J. Muth 1969-8-10 1337 Siskiyou Ridge w. of Boulder Peak Comment
  UC165733  Triteleia hyacinthina Geo. D. Butler 1910-5-27 1415 Siskiyou wet meadow Shasta Valley Comment
  SEINET200218  Triteleia ixioides subsp. anilina Francia Chisaki, Gene B. Newcomb 1958-6-21 1151 Siskiyou Squaw Valley Creek on road to ice cavesnorth of McCloud 1158 Comment
  CHSC27347  Tsuga mertensiana T. B. Devine 1976-10-23 365 Siskiyou 1/8 mi ne of Little Duck Lake. 1950 Comment
  HSC68998  Tsuga mertensiana Maralyn A. Renner 1980-7-28 2200 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  CAS-BOT-BC74092  Turritis glabra A. A. Heller 1916-6-23 12437 Siskiyou Near Black Butte north of Sisson. 1127 Comment
  CAS-BOT-BC74105  Turritis glabra Milo S. Baker 1925-4-8 254 a Siskiyou Highway East Blue Lakes. Comment
  HSC67616  Typha J. P. Smith, Steve Selva 1970-8-8 4557 Siskiyou Juanita Lake Comment
  HSC67575  Typha latifolia J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5739 Siskiyou 2.6 mi. S of Sugar Creek on Parrott Mill Rd. 1341 Comment
  HSC67866  Uropappus lindleyi J. P. Smith 1976-5-5 8677 Siskiyou Road from Sawyers Bar to Somes Bar, just W of Sawyers Bar 671 Comment
  CAS-BOT-BC404214  Urtica dioica subsp. holosericea Alice Eastwood 1912-7-18 1217 Siskiyou Sisson Comment
  RSA15687  Urtica dioica subsp. holosericea Carl B. Wolf 1927-8-26 1073 Siskiyou On the Klamath River, near Hamburg. Comment
  CAS-BOT-BC199188  Vaccinium cespitosum Ira L. Wiggins 1955-7-27 13542 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC199199  Vaccinium cespitosum Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh [Sky High] Lake Comment
  CHSC69749  Vaccinium cespitosum Loren Gehrung 1996-9-20 109 Siskiyou Jackson Lake. 1 airmile south of Russian Wilderness Area. 1901 Comment
  HSC18970  Vaccinium cespitosum J. O. Sawyer 1969-7-8 1098 Siskiyou SE facing slope W of Little Duck Lake 2268 Comment
  HSC19104  Vaccinium cespitosum J. O. Sawyer 1969-8-4 1887 Siskiyou Above S Sugar Lake 2043 Comment
  JEPS116592  Vaccinium cespitosum Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -024 Siskiyou The Eddys, west of Mt. Shasta. West side of Toad Lake, headwaters of Middle Fork of upper Sacramento River South China Mountain 2118 Comment
  UC1190117  Vaccinium cespitosum Ira L. Wiggins 1955-7-27 13542 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC199229  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  HSC19353  Vaccinium membranaceum J. O. Sawyer 1968-6-18 222 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  UC2061649  Vaccinium scoparium R. F. Thorne, Frederick W. Oettinger 1969-8-4 63373 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Comment
  HSC69062  Vaccinium uliginosum Maralyn A. Renner 1980-8-6 2324 Siskiyou Cracker Meadow 1555 Comment
  RSA201568  Vahlodea atropurpurea Jack Major, M. Fleschner, R. Pemble 1966-9-5 s.n. Siskiyou Along trail from Marble Mountain to Sky High Lake, east of Marble Mountain. 1976 Comment
  POM59722  Valeriana capitata subsp. californica Copeland 1903-8-18 3841 Siskiyou Mt. Eddy. Comment
  UCR219536  Valeriana sitchensis R. F. Thorne, Frederick W. Oettinger 1969-8-4 63361 Siskiyou Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, vicinity of English Peak 2098 Comment
  HSC29287  Vancouveria hexandra Frederick W. Oettinger 1968-8-17 555 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: NW of Pine Lake 1860 Comment
  HSC68308  Vancouveria hexandra Maralyn A. Renner 1980-7-5 1521 Siskiyou Doe Flat 1220 Comment
  HSC73293  Vancouveria planipetala Gail Newton 1980-6-20 523 Siskiyou Near Bald Mtn. 1326 Comment
  HSC19090  Veratrum californicum var. californicum J. O. Sawyer 1969-8-4 1824 Siskiyou Above Sugar Lake 2134 Comment
  JEPS82496  Veratrum californicum var. californicum Gilbert Muth 1965-8-3 152 Siskiyou Marble Valley Marble Mt. Wilderness Area 1792 Comment
  JEPS24441  Veratrum insolitum Rimo Bacigalupi with L. Constance and L. R. Heckard 1960-7-21 7483 Siskiyou 14 mi e Cecilville (6 mi w of rd summit, along new rd from Cecilville to Callahan, watershed of e fork of the South Fork of the Salmon River, just above Six-mile Creek) 1371 Comment
  UC164109  Verbena lasiostachys var. lasiostachys Geo. D. Butler 1910-7-2 1621 Siskiyou Yreka Comment
  POM128338  Veronica alpina var. alterniflora M. S. Baker 1898-8-1 489 Siskiyou Medicine Lake. Comment
  JEPS107655  Veronica catenata Lowell Ahart, John Dittes 2005-6-10 12098 Siskiyou Along the Shasta River, about 30 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  HSC91114  Veronica copelandii Jennifer Whipple 1978-10-6 2398 Siskiyou Mt. Eddy, N-facing slopes in the Eddy Creek Drainage 2317 Comment
  CAS-BOT-BC238172  Veronica wormskjoldii Wm. Bridge Cooke 1934-9-8 11634 Siskiyou Mount Shasta. South Gate Springs Comment
  CDA17135  Vicia americana G. F. Hrusa 2001-6-6 15849 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  JEPS66123  Vicia americana var. americana W. L. Jepson Jul 1894 13604 Siskiyou Sisson Comment
  POM349909  Vicia americana var. americana Bonnie C. Templeton 1960-6-21 8561 Siskiyou Near the summit of Scott Mt. Comment
  HSC71650  Vicia americana var. americana J. P. Smith, Steve Selva 1970-6-16 4008 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  CAS-BOT-BC5209  Vicia pumila A. A. Heller 1905-6-1 7938 Siskiyou Between Upper Soda Spring and Shasta Retreat Comment
  UC1733823  Viola Frank Gould, Kay Beach 1940-5-15 1239 Siskiyou Between Mt. Hebron and Montague Lower Bull Meadows Comment
  CAS-BOT-BC264072  Viola adunca Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mountains 1828 Comment
  CAS-BOT-BC270234  Viola adunca K. T. Stillman 1976-6-26 117 Siskiyou Marble Mountain Wilderness Area 1828 Comment
  HSC29304  Viola adunca Frederick W. Oettinger 1969-8-24 1534 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: English Lake campsite near lakeshore 1753 Comment
  HSC64658  Viola adunca J. O. Sawyer 1977-7-6 3024 Siskiyou South of Little Duck Lake 2134 Comment
  POM83898  Viola adunca Geo. D. Butler 1910-4-23 1227 Siskiyou Death Valley. Comment
  RSA238802  Viola adunca Frederick W. Oettinger 1969-8-24 1534 Siskiyou English Lake campsite. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  UC164289  Viola adunca Geo. D. Butler 1909-4-25 606 Siskiyou Quartz Valley Comment
  JEPS124819 Image available Viola adunca B. Corwin 1964-7-1 129 Siskiyou 12.2 miles south on rte. 89 from Fowler Public Camp turnoff. Comment
  SEINET8851725  Viola adunca G. D. Butler 1910-4-23 1227 Siskiyou Quartz Valley Comment
  SEINET186425 Image available Viola beckwithii M. S. Baker 1933-4-22 7428 Siskiyou Pacific Hwy 2 miles S of Yreka at Pine Grove Auto Camp Comment
  UC164286  Viola douglasii Geo. D. Butler 1909-4-25 607 Siskiyou Quartz Valley Comment
  HSC18942  Viola glabella J. O. Sawyer 1968-6-25 322 Siskiyou Along Horse Range Creek 1829 Comment
  HSC68438  Viola glabella Maralyn A. Renner 1980-7-4 1392 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  UC1025115  Viola glabella Douglas Barbe 1955-7-6 119 Siskiyou area along southern shore of Taylor Lake; Salmon Mountains, Taylor Lake 1950 Comment
  UC828134  Viola glabella John Thomas Howell 1939-8-3 14967 Siskiyou Spirit Lake