Search Results — 2000 specimen records retrieved (1384 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC4975  Abies X shastensis J. O. Sawyer 1968-6-18 175 Siskiyou Above S Russian Creek on W side. 1463 Comment
  HSC4974  Abies amabilis J. O. Sawyer 1968-7-2 383 Siskiyou Upper drainage of Joe Creek 1677 Comment
  JEPS83904  Abies amabilis Stephen K. Langer with Charles S. Rand 1988-6-21 Siskiyou 6.5 mi e Cook and Greene Pass (300 to 400 yards w of main spruce stand); White Mountain, Rogue River National Forest 1983 1645 Comment
  UC333504  Abies magnifica var. shastensis unknown 1891-11-12 Siskiyou near Mt. Shasta Comment
  RSA237365  Abies procera Frederick W. Oettinger 1968-9-10 811 Siskiyou Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  CAS-BOT-BC330621  Acer circinatum Wm. Bridge Cooke 1940-7-12 15309 Siskiyou Near the Sacramento River in the Box Canyon near Mount Shasta City 914 Comment
  HSC27600  Acer circinatum Carl W. Mize 1972-6-10 53 Siskiyou Along Steinacher Creek 0.5 mi. from Wooley Creek 244 Comment
  UC580674  Acer circinatum R. Bacigalupi Sep 1934 2328 Siskiyou 5 mi sw Cayton P.O.; Shasta National Forest, Bartle Quad. Comment
  CAS-BOT-BC331025  Acer glabrum var. glabrum Alice Eastwood 1921-7-24 10728 Siskiyou Castle Lake Comment
  UC635157  Acer glabrum var. glabrum D. Tebbe 1929-6-26 12 Siskiyou Big Bear Gully Salmon Mountains, Big Bear Gully Comment
  UCD77263  Acer glabrum var. glabrum Robert E. Preston 2001-6-23 1613 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W se 1/4 Section 15 1889 Comment
  CAS-BOT-BC94942  Acer glabrum var. torreyi R. C. Wenk 2005-7-15 238 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine Trail 2042 Comment
  CAS-BOT-BC332784  Acer macrophyllum L. R. Short 1933-6-16 46 Siskiyou Klamath Forest. 762 Comment
  CDA35547  Acer negundo subsp. californicum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2621 Siskiyou 200 meters north of Hamilton Street on Highway 3, north edge of Fort Jones. Comment
  UC129583  Achillea millefolium Harley P. Chandler 1901-6-1 1677 Siskiyou Marble Mountain; North Coast Ranges 2438 Comment
  UC144341  Achillea millefolium A. A. Heller 1905-6-19 8067 Siskiyou Grenada Comment
  UCSB6310  Achillea millefolium Phillips, Priscilla 1960-6-13 Siskiyou Rt. 97, 11 miles north of Weed, lowers slopes of Mt. Shasta 1097 Comment
  RSA105392  Achillea millefolium G. D. Barbe 1955-7-7 s.n. Siskiyou South of Forest Camp, Etna 884 Comment
  UCD128322  Achillea millefolium S. P. Lynch 1975-6-19 1388 -a Siskiyou 16.3 miles northeast of Happy Camp on Highway 96. Comment
  RSA237254  Achlys triphylla Frederick W. Oettinger 1967-6-28 133 Siskiyou Kelly Gulch (tributary to Salmon River). The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  SEINET12093091  Achlys triphylla F. H. Utech 1986-1 86 -477 Siskiyou Klamath National Forest, West Branch Recreation Area, ca 12 mi NE of Happy Camp 1000 Comment
  JEPS82714  Achlys triphylla subsp. triphylla Wayne Roderick 1973-7-10 Siskiyou Doe Flat 1143 Comment
  CHSC61554  Achnatherum nelsonii subsp. dorei L. P. Janeway 1983-8-26 606 Siskiyou Siskiyou Mountains; at Poker Flat. 1524 Comment
  CAS-BOT-BC216923  Achnatherum occidentale John Thomas Howell 1934-7-4 12390 Siskiyou SE corner of the county Comment
  CAS-BOT-BC210863  Achnatherum occidentale subsp. californicum Alice Eastwood 1912-7-15 1131 Siskiyou McCloud Comment
  CAS-BOT-BC210871  Achnatherum occidentale subsp. californicum W. R. Dudley 1899-8-13 s.n. Siskiyou Near Nabar Meadows, McCloud Comment
  UCD51424  Achnatherum thurberianum W. E. Moon 1958-5-29 s.n. Siskiyou along State Hwy. 97, 12 miles northeast of Weed. Comment
  UCD51443  Achnatherum thurberianum A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3427 Siskiyou 8 miles north of Yreka, above the Shasta River. Comment
  CAS-BOT-BC218017  Achnatherum thurberianum Leo W Whitney 1934-6-27 1974 Siskiyou Near Dome Mountain, 27 miles NE of Tennant Comment
  HSC22221  Acmispon nevadensis var. nevadensis J. O. Sawyer 1969-6-12 908 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  UCD104266  Acmispon nevadensis var. nevadensis Tofsrud 1948-8-1 s.n. Siskiyou East edge of McCloud. Comment
  CHSC35553  Acmispon parviflorus James P. Smith 1973-5-5 6535 Siskiyou Scott Bar along the Scott River. Comment
  UC375344  Aconitum columbianum Geo. D. Butler 1909-7-20 1064 Siskiyou Highland Mine Comment
  CAS-BOT-BC391504  Aconitum columbianum subsp. columbianum W. R. Dudley 1899-8-10 s.n. Siskiyou Near Sisson Comment
  CAS-BOT-BC391529  Aconitum columbianum subsp. columbianum W. R. Dudley 1893-6-21 s.n. Siskiyou Klink's Meadow near Sisson's Comment
  POM365537  Aconitum columbianum var. columbianum M. B. Dunkle 1944-8-25 9180 Siskiyou Hungry Creek 1829 Comment
  HSC30500  Aconogonon phytolaccifolium Frederick W. Oettinger, R. F. Thorne 1969-8-7 1274 Siskiyou Marble Mtn. Wilderness Area, SE side of English Lake 1829 Comment
  CAS-BOT-BC391707  Actaea rubra Wm. Bridge Cooke 1938-8-19 11530 Siskiyou Mount Shasta. Bear Springs. Also collected at the Sisson Southern Trail Spring (6500 ft) 1524 Comment
  RSA184626  Adenocaulon bicolor Clare B. Hardham 1965-8-20 1302 Siskiyou Marble Mts. Granite Trail near Cudahy Lakes 1372 Comment
  CAS-BOT-BC68951  Adiantum aleuticum Gilbert J. Muth 1969-8-10 1346 Siskiyou Ridge west of Boulder Peak Comment
  CAS-BOT-BC68957  Adiantum aleuticum Doris K. Kildale 1929-8-24 9069 Siskiyou Rattlesnake Meadow, near Preston Peak 1524 Comment
  HSC61852  Agastache urticifolia Ruby Van Deventer 1938-7-17 Siskiyou Poker Flat 1585 Comment
  RSA211330  Agastache urticifolia William J. Ferlatte 1966-8-18 425 Siskiyou Trinity Alps of Northern California, Willow Creek Trail. 1707 Comment
  UC1034034  Ageratina occidentalis W. Bridge Cooke 1941-8-15 16185 Siskiyou on recent lava flow n Cascade Gulch; Mount Shasta Comment
  HSC5639  Ageratina occidentalis D. M. Thomson 1965-8-7 178 Siskiyou California Lava Beds National Monument, 1 mile up Cave Loop Trail. Comment
  HSC77090  Ageratina occidentalis K. T. Stillman 1976-8-7 362 Siskiyou Marble Mtn. Wilderness Area, trail to Marble Valley Guard Station Comment
  RSA14495  Agoseris glauca var. dasycephala Elmer I. Applegate 1923-8-17 3845 Siskiyou West side of Medicine Lake Comment
  SEINET6709771 Image available Agoseris glauca var. glauca G. D. Butler 1910-6-19 1589 Siskiyou Darry Land, Goosenest Foothills 1524 Comment
  SFV5158  Agoseris grandiflora B. C. Templeton 1960-6-21 8525 Siskiyou Between the agricultural Experiment Station and the California state line._x000B_Grassy hillside. Comment
  JEPS36274  Agoseris grandiflora var. grandiflora Geo. D. Butler 1908-8-28 304 Siskiyou Marlahan Ranch Oro Fino Comment
  UC195380  Agoseris grandiflora var. grandiflora A. A. Heller 1916-7-20 12555 Siskiyou at, ne base of Mt. Eddy Metcalf's ranch; Mt. Eddy 1188 Comment
  UC585113  Agoseris grandiflora var. grandiflora E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1940 Siskiyou about 8 mi s of Yreka 822 Comment
  CAS-BOT-BC15377  Agoseris grandiflora var. grandiflora Wm. Bridge Cooke 1938-8-5 11441 Siskiyou MacBride Springs, on southwest side of Mount Shasta 1524 Comment
  SBBG30514  Agoseris heterophylla D. Myrick 1968-6-28 2052 Siskiyou Mountain Meadow Ranch, Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  CAS-BOT-BC22773  Agoseris heterophylla H. M. Hall; E. B. Babcock 1903-6-1 4036 Siskiyou Near Dunsmuir 609 Comment
  CAS-BOT-BC22775  Agoseris heterophylla L. E. Smith 1915-6-1 s.n. Siskiyou Hilt Comment
  UC144337  Agoseris heterophylla var. heterophylla A. A. Heller 1905-6-15 8030 Siskiyou near Sisson Comment
  RSA233667  Agoseris monticola R. F. Thorne, Frederick W. Oettinger 1969-8-10 38992 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  JEPS36250  Agoseris retrorsa Geo. D. Butler 1909-5-30 752 Siskiyou near Yreka Comment
  RSA120644  Agropyron desertorum G. D. Barbe 1955-06 76 Siskiyou 1 1/4 mi E of Etna near junction of West side road and East West road Comment
  SEINET7295881 Image available Agrostis alba Beecher Crampton 1956-1 3868 Siskiyou Abundant in a dry meadow of volcanic ash with surrounds of Abies forest, Wagon camp Road, ca. 5.5 miles southwest of Panther Meadow, south slope of Mt. Shasta 1646 Comment
  CAS-BOT-BC126995  Agrostis exarata Louis C. Wheeler 1934-7-2 2843 Siskiyou Siskiyou Mountains. Little Smoky Creek, Sterling Mountain. 1280 Comment
  CAS-BOT-BC126998  Agrostis exarata John Thomas Howell 1939-8-10 15250 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  UCD35432  Agrostis exarata Beecher Crampton 1956-8-21 3830 Siskiyou 0.5 mile northeast of Gumboot Lake, headwater of the south fork of the Sacramento River. 1767 Comment
  CAS-BOT-BC139568  Agrostis gigantea W. R. Dudley 1899-8-15 s.n. Siskiyou Near Bartlets. Comment
  HSC22462  Agrostis pallens J. O. Sawyer 1969-7-24 1471 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  RSA239085  Agrostis pallens Frederick W. Oettinger 1969-9-3 1612 Siskiyou Shasta Ridge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  UC922324  Agrostis pallens Annie M. Alexander and Louise Kellogg 1949-7-20 5818 Siskiyou on hill n Paradise Lake; Marble Mountains 1920 Comment
  SEINET7594122 Image available Agrostis pallens Frederick W. Oettinger 1969-1 1411 Siskiyou High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, northeast of Wiregrass Meadows near English Lake Basin 1676 Comment
  RSA116451  Agrostis scabra A. H. Murphy 1956-8-16 56 W Siskiyou Tangle Blue Lake, Klamath National Forest 1768 Comment
  RSA238993  Agrostis scabra Frederick W. Oettinger 1968-9-7 751 Siskiyou Lake shore at north end of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC1153941  Agrostis scabra Alfred H. Murphy 1957-8-16 56 W Siskiyou Tangle Blue Lake Klamath National Forest 1767 Comment
  SBBG26837  Agrostis stolonifera L. C. Wheeler 1947-8-14 3134 Siskiyou N side of White Mtn, Siskiyou Mts; T37N, R10W S1 1767 Comment
  UCD37096  Agrostis stolonifera Beecher Crampton 1956-8-22 3868 Siskiyou Siskiyou County, south slope of Mount Shasta, 5.5 miles southwest of Panther Meadow, just north of Everitt Hill, on Wagon Camp Road. 1645 Comment
  SEINET4342108  Agrostis stolonifera E. Palmer 1892-1 2621 Siskiyou Near Mt. Shasta Comment
  SEINET10967753  Agrostis variabilis Cyrus G. Pringle 1882-9-1 Pringle s.n. Siskiyou Comment
  CAS-BOT-BC459433  Allium acuminatum Lewis S. Rose 1945-6-18 45069 Siskiyou Horse Creek and Klamath River 502 Comment
  JEPS47600  Allium falcifolium W. L. Jepson 1902-7-17 2069 Siskiyou Devil's Backbone, on boundary between Humboldt and Trinity County Devil's Backbone 1828 Comment
  UC1561870  Allium falcifolium Barbara Ertter with Thomas J. Delendick 1987-5-17 6968 Siskiyou Summit Scott Mt. (1/2 mi e. of Rt. 3 on FR 40N08) 1706 Comment
  UC796664  Allium falcifolium Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11716 Siskiyou Schoolhouse Hill, e. fork of Scott River Scott River, Plowman's (Noyes) Valley, Schoolhouse Hill Comment
  CAS-BOT-BC469240  Allium falcifolium Roxana S. Ferris; Laura Lorraine 1948-6-12 11716 Siskiyou Schoolhouse Hill, Plowman's Valley [Noyes Valley], East fork of Scott River Comment
  HSC65562  Allium falcifolium Rich White 1977-7-21 136 Siskiyou Between Preston Peak and Raspberry Lake 1814 Comment
  CAS-BOT-BC516177  Allium siskiyouense Dana York 2011-8-13 3068 Siskiyou Marble Mountain Wilderness: Klamath National Forest, 230 m WSW of Black Marble Mountain 2220 Comment
  JEPS74459  Allium validum W. J. Ferlatte 1966-8-17 393 Siskiyou Caribou Basin 1981 Comment
  UC1409325  Allium validum Frederick W. Oettinger 1968-8-1 343 Siskiyou s shore line of Little Hancock Lake Marble Mountain Wilderness Area, Little Hancock Lake 2042 Comment
  SEINET205137  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou Marble Mtn WA ; In vicinity of cabin lower Red Rock Valley 1494 Comment
  UC484055  Alnus incana subsp. tenuifolia Carl B. Wolf 1930-10-22 1752 Siskiyou 1 mi w Mt. Shasta City 1066 Comment
  CAS-BOT-BC169375  Alnus viridis subsp. sinuata Mrs. H. P. Bracelin 1936-5-11 840 Siskiyou Mt. Eddy, about 6 miles NW of Mt. Shasta City; Wagon Creek canyon above Metcalf ranch house 1188 Comment
  HSC4967  Alnus viridis subsp. sinuata J. O. Sawyer 1968-7-10 489 Siskiyou Lower slopes grading to terrace of a temporary stream. 1768 Comment
  JEPS52986  Alyssum alyssoides Geo. D. Butler 1909-5-13 722 Siskiyou Cottonwood Creek Comment
  CAS-BOT-BC17202  Alyssum alyssoides L. E. Smith 1913-5-27 299 Siskiyou Weed. Comment
  HSC64811  Alyssum alyssoides J. P. Smith 1974-5-25 7371 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  JEPS89085  Amaranthus californicus Geo. D. Butler 1909-8-18 1067 Siskiyou Yreka Comment
  HSC68453  Amelanchier alnifolia Maralyn A. Renner 1980-7-4 1401 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC68506  Amelanchier alnifolia Maralyn A. Renner 1980-6-22 917 Siskiyou Slopes N of Little Shasta River 1372 Comment
  HSC18534  Amelanchier pallida R. C. Wunner 1965-8-21 465 Siskiyou California Lava Beds National Monument; 1/4 mile S from Cinder Pit in direction of Caldwell Cave 1402 Comment
  HSC36643  Amelanchier pallida A. M. Montalvo, J. D. Ackerman 1975-7-18 578 Siskiyou The Eddy's, between Mt. Eddy and Boulder Peak, headwaters of S Fork of Sacramento River 1829 Comment
  HSC73314  Amelanchier pallida Gail Newton 1980-6-20 449 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC136915  Amelanchier utahensis Roxana S. Ferris; Laura Lorraine 1948-6-12 11800 Siskiyou Scott Mt. Rd. so. of Callahan 1463 Comment
  CAS-BOT-BC136918  Amelanchier utahensis Ira L. Wiggins 1955-7-27 13564 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  JEPS120214  Amelanchier utahensis Julie Kierstead Nelson with Keli McElroy 2012-8-10 2012 -078 Siskiyou NW side of Gumboot Lake Comment
  UC1540021  Amelanchier utahensis M. Mitchell 1936-5-14 18 Siskiyou Captain Jack's Stronghold 1249 Comment
  JEPS61146  Amsinckia intermedia Geo. D. Butler 1904-4-20 600 Siskiyou near Yreka Comment
  RSA0089707  Amsinckia intermedia Dorothy Parker 1946-6-6 4 Siskiyou Plowman s Valley. 1159 Comment
  RSA0089744  Amsinckia lycopsoides Douglas Barbe, Milo S. Baker 1955-7-1 071 Siskiyou 0.6 miles east of Etna. 854 Comment
  CHSC91353  Amsinckia menziesii Lowell Ahart; John Dittes 2005-6-9 12046 Siskiyou Along the west 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
  HSC3527  Amsinckia tessellata R. C. Wunner 1965-6-22 256 Siskiyou Lava Beds National Monument, Canby Bay. 1220 Comment
  CAS-BOT-BC45210  Anaphalis margaritacea A. A. Heller 1915-8-26 12247 Siskiyou Wagon Creek at the foot of Mt. Eddy 1127 Comment
  HSC29228  Anaphalis margaritacea Frederick W. Oettinger 1969-8-15 1382 Siskiyou High Lake Basins near English Peak, Marble Mountain Wilderness Area; N of Upper English Lake 1776 Comment
  SEINET8379680  Andersonglossum occidentale L. E. Detling 1947-6-3 6058 Siskiyou Hapy Camp, Klamth National Forest. 335 Comment
  JEPS20045  Androsace elongata subsp. acuta George D. Butler 1909-3-7 579 Siskiyou near Yreka (Butcher Hill); Butcher Hill Comment
  HSC4932  Anemone deltoidea J. O. Sawyer 1968-9-28 746 Siskiyou Along ridge NE of Orleans Mtn. 1677 Comment
  RSA105354  Anemone deltoidea G. D. Barbe 1955-7-6 135 Siskiyou Along northeast shore of Taylor Lake, Salmon Mtns. 1951 Comment
  CAS-BOT-BC391852  Anemone drummondii Geo. D. Butler 1910-7-8 1683 Siskiyou Marble Mountain 1676 Comment
  HSC22417  Anemone lyallii J. O. Sawyer 1969-6-12 936 Siskiyou Along Duck Lake Creek 1921 Comment
  HSC58915  Anemone occidentalis Marvin Butler 1971-7-14 137 Siskiyou Near El Capitan 2073 Comment
  CAS-BOT-BC391964  Anemone occidentalis L. R. Short 1933-8-8 108 Siskiyou Klamath National Forest. Boulder Creek 2514 Comment
  HSC22428  Anemone occidentalis J. O. Sawyer 1969-7-2 1024 Siskiyou Crest W of Upper Albert Lake 2256 Comment
  HSC44994  Anemone occidentalis J. O. Sawyer 1978-6-16 3211 Siskiyou Marble Mtn. Wilderness Area slopes 1829 Comment
  HSC62128  Anemone occidentalis Al Hobart 25 Jul [year missing] Siskiyou Preston Peak 1982 Comment
  UC127735  Antennaria argentea Harley P. Chandler 1901-6-1 1714 Siskiyou at, (ridges and meadows near Marble Mountain) Shackleford Canyon; North Coast Ranges, Marble Mountain 1828 Comment
  CAS-BOT-BC59163  Antennaria dimorpha L. E. Smith 1914-3-1 s.n. Siskiyou Montague Comment
  CAS-BOT-BC58715  Antennaria geyeri A. A. Heller 1914-8-25 s.n. Siskiyou Deetz Station near Black Butte 1158 Comment
  CAS-BOT-BC58721  Antennaria geyeri Alice Eastwood 1921-7-29 10958 Siskiyou Little Mt. Hoffman Comment
  UCR70793  Antennaria geyeri J. W. Thompson 1936-7-8 13158 Siskiyou Lava Bed National Monument Comment
  CAS-BOT-BC79908  Antennaria microphylla Geo. D. Butler 1910-6-5 1519 Siskiyou Loy Lake Comment
  JEPS84314  Antennaria rosea L. R. Heckard with J. Hickman et al. 1986-7-17 6533 Siskiyou s end,(road end area & camp overlooking s end of Alex Hole- se of Condrey Mt.) Alex Hole; Condrey Mt., Alex Hole 1980 Comment
  CHSC259  Antennaria rosea subsp. confinis V. Holt 1943-8-10 Siskiyou Marble mountains. 1524 Comment
  HSC21990  Antennaria rosea subsp. rosea J. O. Sawyer 1969-7-9 1252 Siskiyou W facing slope above Bingham Lake 2317 Comment
  HSC68350  Anthemis cotula J. P. Smith, Steve Selva 1970-7-17 4428 Siskiyou Along Klamath River Comment
  RSA416838  Anthemis cotula Mr Chadwick, Chadwick 1911-07 1931 Siskiyou Shasta Springs. Comment
  JEPS25848  Antirrhinum vexillocalyculatum subsp. breweri Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7474 Siskiyou 3 mi ne Calif. Hwy 96, Swillup Creek crossing (Calif Hwy 96, opposite King Creek in Klamath River Canyon); Klamath River Canyon 334 Comment
  RSA0047114  Apera interrupta L. Ahart 2005-6-9 12007 Siskiyou On the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2.5 miles (air) ESE of Grenada. 775 Comment
  JEPS95243  Apocynum Steve Edwards Jul 1996 Siskiyou at base of Mount Eddy (Stewart Springs Road) 914 Comment
  UC141642  Apocynum androsaemifolium Wm. M. Canby, Profs. C. S. Sargent and John Muir 1897-9-7 196 Siskiyou Mt. Shasta Comment
  UC455929  Apocynum androsaemifolium I. J. Condit 1911-7-14 Siskiyou Shasta Retreat Comment
  UC922449  Apocynum androsaemifolium Annie M. Alexander and Louise Kellogg 1949-7-25 5871 Siskiyou s. of Paradise Lake; Marble Mt. 1920 Comment
  OBI3454  Apocynum androsaemifolium John Applegarth 1971-7-10 s.n. Siskiyou At jctn of Beaver Crk and Grouse crk 914 Comment
  CAS-BOT-BC394984  Aquilegia formosa H. A. Thomas; J. H. Thomas 1954-7-21 4397 Siskiyou Salmon - Trinity Mts, about 6 miles SE of Cecilville, W side of Rush Creek 1036 Comment
  UCR47856  Aquilegia formosa Steve Morgan 1987-7-28 s.n. Siskiyou Sierra Nevada Mtns, McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, south of Mt. Shasta 1768 Comment
  CAS-BOT-BC397950  Aquilegia formosa W. R. Dudley 1905-8-4 s.n. Siskiyou Foot of My Eddy Comment
  HSC22425  Aquilegia formosa var. formosa J. O. Sawyer 1969-7-16 1153 Siskiyou W of Waterdog Lake 2073 Comment
  HSC73991  Aquilegia formosa var. formosa Gail Newton 1980-6-20 484 Siskiyou Near Bald Mtn. 1097 Comment
  RSA211137  Aquilegia formosa var. truncata William J. Ferlatte 1966-8-17 392 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  RSA0125746  Arabis breweri Geo. D. Butler 1910-3-6 1118 Siskiyou Shasta River 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
  HSC6537  Arabis holboellii var. retrofracta R. C. Wunner 1965-6-29 288 Siskiyou California Lava Beds National Monument; S. Tichner Rd., 1.5 mi. S from Mammoth Crater 1555 Comment
  HSC90626  Arabis holboellii var. retrofracta Jennifer Whipple 1977-7-22 2038 Siskiyou Ridgecrest between Dobkins Lake and Dale Creek drainage 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
  HSC90272  Arabis oregana D. L. Goforth 1980-6-27 647 Siskiyou Scott River at Sugarpine Gulch 650 Comment
  HSC90273  Arabis oregana D. L. Goforth 1980-6-27 646 Siskiyou Scott River at Middle Creek Camp 724 Comment
  UC909371  Arabis puberula Ira L. Wiggins 1950-5-28 12376 Siskiyou ridge just above Grouse Lake (headwaters of Grouse Creek); Grouse Creek 1828 Comment
  HSC46816  Arabis puberula William J. Ferlatte 1974-7-25 1584 Siskiyou Grouse Ridge along Trinity Co. line, 100 yds. S of Dorleska Summit 2119 Comment
  UC166108  Arabis subpinnatifida Geo. D. Butler 1910-7-12 1763 Siskiyou Shackleford Creek Comment
  HSC39238  Arabis subpinnatifida J. P. Smith 1976-5-21 8757 Siskiyou Along FS Rd. 40N08, 1 mi. from its junction with Hwy. 3, Klamath National Forest 1646 Comment
  HSC6571  Arabis subpinnatifida Lincoln Constance, R. C. Rollins 1942-5-14 2923 Siskiyou Road to Walker Post Office, 4 mi. W of Yreka 1220 Comment
  CDA15524  Aralia californica G. F. Hrusa 1998-7-5 14692 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy., at mile 5.x. Sheet 1 of 2 Comment
  HSC65083  Aralia californica J. P. Smith, Steve Selva 1970-6-14 3887 Siskiyou 1 mi. E of Steinacher Creek Rd. on Rd. to Forks of Salmon Comment
  CAS-BOT-BC171028  Aralia californica Marion Ownbey; Fred G. Meyer 1940-7-8 2221 Siskiyou Along Cade Creek near it's mouth, 3 miles east of Happy Camp. Comment
  JEPS48993  Arceuthobium Geo. D. Butler 1908-8-4 270 Siskiyou head of Shackleford Creek 1676 Comment
  CAS-BOT-BC407724  Arceuthobium abietinum W. R. Dudley s.n. Siskiyou side of Black Butte Comment
  POM354174  Arceuthobium abietinum Louis C. Wheeler 1934-6-18 2723 Siskiyou West Fork Cottonwood Creek, Siskiyou Mtns. (Mt Diablo Mer.) 1463 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
  CAS-BOT-BC45434  Arctostaphylos nevadensis Doris K. Kildale 1929-7-20 8710 Siskiyou Raspberry Lake, upper Indian Creek. 1828 Comment
  HSC67824  Arctostaphylos nevadensis J. O. Sawyer, J. Cole 1980-7-20 3765 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  UC456165  Arctostaphylos nevadensis I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 2133 Comment
  UC61678  Arctostaphylos nevadensis Geo. B. Grant Sept 1902 5128 Siskiyou Horse Camp Mt. Shasta 2438 Comment
  SEINET11989670  Arctostaphylos nevadensis R. Raiche, Zadnik, K. 1982-1 20785 Siskiyou 11 mi WNW of Yreka at Deadwood Lookout 1707 Comment
  SEINET11991010  Arctostaphylos nevadensis S. Edwards, Roderick, W. 1983-1 104 Siskiyou along trail between Cook & Green Pass & Lily Pad Lake 1676 Comment
  CAS-BOT-BC46455  Arctostaphylos patula H. P. Bracelin 1931-6-19 425 Siskiyou N. side of Mt. Eddy. Above Metcalf ranch house, N. of Shasta City about 8 mi. 1539 Comment
  CAS-BOT-BC46520  Arctostaphylos patula Doris K. Kildale 1929-7-20 8718 Siskiyou Raspberry Lake, upper Indian Creek. 1828 Comment
  HSC30332  Arctostaphylos patula Dale R. Gradek 1974-5-27 88 Siskiyou 4 mi. SW of Chandler Glade on FS Rd. 47N03 1524 Comment
  JEPS38834  Arctostaphylos patula Geo. D. Butler 1909-4-11 756 Siskiyou Weed Comment
  JEPS38841  Arctostaphylos patula Willis L. Jepson July 1894 14722 Siskiyou near Mt. Shasta; Sisson Comment
  POM77308  Arctostaphylos patula Geo D. Butler 1909-4-11 657 Siskiyou Weed. Comment
  POM77504  Arctostaphylos patula Geo D. Butler 1908-8-5 102 Siskiyou West Fork of Wooley Creek. 1677 Comment
  RSA47603  Arctostaphylos patula Roxana S. Ferris, Laura Lorriane, R. T. Ferris 1948-6-12 11825 Siskiyou One mile below summit of Gazelle Mountain, Gazelle-Callahan grade, west side. 1220 Comment
  UC1540018  Arctostaphylos patula Roseberry 1936-5-11 14 Siskiyou n side Hippo Butte; Lava Beds National Monument 1630 Comment
  HSC67138  Arctostaphylos viscida J. P. Smith 1973-5-5 6482 Siskiyou Along Cook and Green Pass Rd. Comment
  UC1586857  Arenaria congesta Juha Pykala and D. H. Norris 1987-6-26 2064 Siskiyou above Bear Creek (0-3 km below Bear Lake); Marble Mountain Wilderness Area, Bear Lake Comment
  UC852267  Arenaria congesta var. suffrutescens John Thomas Howell 1939-8-2 14916 Siskiyou Marble Mts., Spirit Lake 1828 Comment
  CAS-BOT-BC467190  Arenaria serpyllifolia var. serpyllifolia John Thomas Howell 1937-7-23 13351 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC46238  Arnica cernua J. P. Smith 1973-5-5 6372 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  HSC62125  Arnica cernua Al Hobart 18 Jun [year missing] Siskiyou Preston Peak Comment
  JEPS19744  Arnica chamissonis Rimo Bacigalupi with S. Galen Smith 1957-6-27 5874 Siskiyou Grass Lake, 20 ne of Weed, on route between Weed and Klamath Falls Grass Lake 1544 Comment
  HSC29104  Arnica cordifolia Frederick W. Oettinger 1968-9-1 647 Siskiyou Marble Mtn. Wilderness Area, SSW of Abbotts Lake 1799 Comment
  UC34177  Arnica cordifolia Harley P. Chandler 1901-6-1 1615 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges Comment
  HSC22148  Arnica cordifolia J. O. Sawyer 1969-6-12 941 Siskiyou On trail to Duck Lakes 1890 Comment
  HSC46235  Arnica cordifolia Jennifer Whipple 1977-7-22 2044 Siskiyou Mt. Eddy 2256 Comment
  UCD129112  Arnica cordifolia Geo. C. Wood 1940-4-30 s.n. Siskiyou 5 miles south of Yreka. Comment
  CAS-BOT-BC82404  Arnica discoidea Alice Eastwood 1923-5-18 11848 Siskiyou Shasta Springs Comment
  CAS-BOT-BC82552  Arnica discoidea Doris K. Kildale 1929-7-20 8628 Siskiyou trail up South [Frk] Fork of Indian Creek to Elk Lick 1524 Comment
  UC455482  Arnica discoidea I. J. Condit 1911-7-4 Siskiyou Shasta Retreat Comment
  HSC22145  Arnica diversifolia J. O. Sawyer 1969-8-3 1775 Siskiyou Near Little Duck Lake 2073 Comment
  UC1540193  Arnica lanceolata subsp. prima Dean W. Taylor 1987-6-26 9062 Siskiyou 2 mi se Medicine Lake; Paynes Springs 1996 Comment
  HSC29300  Arnica latifolia Frederick W. Oettinger 1968-8-10 460 Siskiyou High Lake Basins near English Peak, Marble Mountain Wilderness Area; along the old Hancock Lake trail to Diamond Lake 1974 Comment
  JEPS123403  Arnica longifolia Julie Kierstead Nelson with Robin Fallscheer 2015-8-13 2015 -135 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. Comment
  RSA417151  Arnica nevadensis M. B. Dunkle 1944-6-26 9044 Siskiyou Deer Creek. 1829 Comment
  UCR45430  Artemisia arbuscula K. T. Stillman 1976-9-9 483 Siskiyou Marble Mountain Wilderness Area 1951 Comment
  SEINET5712646  Artemisia arbuscula J. M. Tucker, L. K. Mann 1963-1 3764 Siskiyou Saddle between Marble Mountain and southwestern ridge of Black Mountain (Black Marble Mountain) Marble Mountain Wilderness Area.; Marble Mountain Wild. Area 2103 Comment
  RSA291579  Artemisia biennis R. Pederson, G. Pederson 1979-9-26 113 Siskiyou Lower Klamath National Wildlife Refuge. 1238 Comment
  CAS-BOT-BC90472  Artemisia douglasiana Grant 1902-9-14 s.n. Siskiyou Dunsmuir Comment
  HSC27231  Artemisia douglasiana J. P. Smith, J. O. Sawyer 1971-9-18 4798 Siskiyou Hwy. 3 between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  CAS-BOT-BC90743  Artemisia ludoviciana subsp. incompta John Thomas Howell 1939-8-8 15186 Siskiyou Black Mt., Marble Mt. Comment
  CAS-BOT-BC90772  Artemisia ludoviciana subsp. ludoviciana G. J. Muth 1969-8-10 1331 Siskiyou Ridge w. of Boulder Peak 2377 Comment
  HSC68276  Artemisia ludoviciana subsp. ludoviciana Steve Selva, J. P. Smith 1970-8-9 4578 Siskiyou W of Macdoel Comment
  CAS-BOT-BC93710  Artemisia norvegica subsp. saxatilis Annetta Carter 1939-8-21 1470 Siskiyou Steep slope above southeast end of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2194 Comment
  HSC35806  Artemisia norvegica subsp. saxatilis J. O. Sawyer 1969-8-18 1978 Siskiyou S of S Sugar Lake 2104 Comment
  UC630406  Artemisia norvegica subsp. saxatilis Annetta Quarter 1939-8-21 1470 Siskiyou steep slope above se end Taylor Lake ( 12 mi sw of Etna); Salmon Mountains 2194 Comment
  UC165759  Aruncus dioicus var. pubescens Geo. D. Butler 1908-8-3 280 Siskiyou canyon of Shackleford Creek Comment
  RSA237600  Aruncus sylvester Frederick W. Oettinger, Robert F. Thorne 1969-8-9 1327 Siskiyou Near Five miles Point, Stock gate slope near Herr Creek. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1098 Comment
  CAS-BOT-BC400585  Asarum caudatum Alice Eastwood 1912-7-16 1140 Siskiyou McCloud Comment
  CAS-BOT-BC400588  Asarum caudatum Alice Eastwood 1923-5-18 11853 Siskiyou Shasta Springs Comment
  UC1045273  Asarum caudatum W. B. Cooke 1940-7-12 15316 Siskiyou in Box Canyon of the Sacramento River near Mount Shasta City 914 Comment
  JEPS8487  Asarum marmoratum Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriquez, and S. Carlquist 1951-6-16 3447 Siskiyou Poker Flat, near summit of Takilma - Happy Camp road over Siskiyou County line 1630 Comment
  HSC636  Asclepias cordifolia William J. Ferlatte 1967-6-30 592 Siskiyou Josephine Lake basin 1677 Comment
  HSC3281  Asclepias fascicularis R. C. Wunner 1965-7-9 348 Siskiyou Lava Beds N.M. 200 yds. off Hardin Butte Trail to N 0.5 mi. from main road 1341 Comment
  UC705672  Asclepias fascicularis Marion Ownbey, Fred G. Meyer 1940-7-4 2170 Siskiyou near Hornbrook; Ditch Creek Comment
  SEINET7121401  Asclepias speciosa B. L. Wilson 2006-7-25 11946 Siskiyou Near spring on Forest Service road above Forest Mountain Summit 1265 Comment
  SEINET10741573  Asclepias speciosa H. E. Brown 1897-7-15 Brown 493 Siskiyou N side of Mt. Shasta Comment
  UC1409503  Asclepias speciosa F. W. Oettinger 1969-8-12 1331 Siskiyou 1 mi from Etna Summit (on road toward Etna); Salmon Mountains Comment
  CAS-BOT-BC69561  Aspidotis densa Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, trinity Mts. 1889 Comment
  CAS-BOT-BC69596  Aspidotis densa Roxana S. Ferris; Laura Lorraine 1948-6-12 11794 Siskiyou Scott Mountain Road s. of Callahan. Comment
  UC185224  Aspidotis densa Geo. D. Butler 1910-7-8 1670 Siskiyou Shackelford Creek Comment
  SEINET516321  Aster frondosus Vernon H. Oswald 1998-9-16 9645 Siskiyou Vista point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi E of Hwy. 97. 1244 Comment
  POM193509  Aster oregonensis J. B. Feudge 1928-8-11 1912 Siskiyou Mt. Shasta City 1037 Comment
  RSA530006  Aster radulinus Wm. Taylor, Glenn L. Clifton 1987-8-5 9225 Siskiyou Forest Road 26N06 at crossing of Tate Creek, headwaters McCloud River drainage 1485 Comment
  CAS-BOT-BC178813  Astragalus californicus L. E. Smith 1914-5-14 697 Siskiyou Yreka Comment
  RSA109721  Astragalus californicus R. C. Barneby 1954-5-15 11499 Siskiyou open volcanic hillside among rabbit brush, NE of Weed. 1387 Comment
  CDA26673  Astragalus gambelianus G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2597 Siskiyou Between restaurant and motel properties, Old Highway 99, south edge of Yreka. Comment
  CAS-BOT-BC193066  Astragalus purshii var. tinctus Geo. D. Butler 1909-5-8 708 Siskiyou Near Yreka Comment
  CAS-BOT-BC198703  Astragalus whitneyi var. siskiyouensis Dorothy Parker 1953-7-20 547 Siskiyou Cabin Meadow Creek near Cory Peak - Siskiyou Mountains 1981 Comment
  POM22313  Athyrium americanum E. B. Copeland 1903-8-16 3917 Siskiyou Mount Shasta 2378 Comment
  HSC58849  Athyrium distentifolium var. americanum Marvin Butler 1971-8-2 258 Siskiyou Near El Capitan, close to the town of Cave Junction 2073 Comment
  UC399394  Athyrium distentifolium var. americanum C. G. Pringle Sept. 1882 Siskiyou Mt Shasta Comment
  HSC22158  Athyrium filix-femina var. cyclosorum J. O. Sawyer 1969-7-23 1176 Siskiyou Along road near Horse Range Creek. 1341 Comment
  UC185243  Athyrium filix-femina var. cyclosorum Geo. D. Butler 1910-7-8 1675 Siskiyou Shackleford Creek 1219 Comment
  UC163672  Atriplex rosea Geo. D. Butler 1910-8-18 1841 Siskiyou Shasta Valley Comment
  UC164030  Atriplex rosea Geo. D. Butler 1909-9-20 1066 Siskiyou damp fields near Yreka; damp fields near Yreka Comment
  RSA768925  Azolla microphylla Lowell A. Ahart, John Dittes 2010-7-30 16955 Siskiyou Edge of the Shasta River, about 50-100 yards from the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 air miles southwest of Big Springs Lake, 4.6 air miles northwest of Dwinnel Dam, 5.7 air miles southeast of Grenada. 717 Comment
  HSC42912  Balsamorhiza deltoidea J. O. Sawyer, Ken Stillman 1976-7-2 2822 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  CAS-BOT-BC100049  Balsamorhiza hookeri Dorothy Parker 1951-5-20 s.n. Siskiyou on the summit of Scott Mountain 1630 Comment
  POM36318  Balsamorhiza terebinthacea Geo. D. Butler 1910-5-11 1337 Siskiyou Shasta Valley Comment
  POM350743  Balsamorhiza terebinthacea M. A. Baker 1977-5-22 327 Siskiyou One mile west of Hwy 3 on moist south-facing bank of road to Little Duck Lake and Sugar Lake. Comment
  HSC34001  Barbarea orthoceras J. P. Smith 1974-5-25 7487 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  HSC44960  Barbarea orthoceras J. O. Sawyer 1978-6-16 3223 Siskiyou Marble Mtn. Wilderness Area, Upper Elk Valley 1951 Comment
  UCD114283  Barbarea orthoceras A. H. Murphy 1953-7-28 KNF 7 Siskiyou Long Gulch Camp, Siskiyou-Trinity County. 1889 Comment
  LA204057  Berberis aquifolium var. aquifolium Carl B. Wolf; 1934-7-5 5974 Siskiyou Siskiyou Mountains, 4.7 mi. from Oak Knoll Ranger Station on Klamath River, on road to Dry Lake Lookout 1219 Comment
  UC796540  Berberis aquifolium var. aquifolium Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11814 Siskiyou at Mule Creek croosing of Scott Mt Rd 1524 Comment
  JEPS47705  Berberis aquifolium var. dictyota Geo. D. Butler 1909-4-20 591 Siskiyou along creek near Yreka Comment
  CAS-BOT-BC75919  Berberis piperiana Doris K. Kildale 1929-4-27 7583 Siskiyou Cecilville upper South Fork of Salmon River. Comment
  CAS-BOT-BC75926  Berberis piperiana L. B. Kildale 1930-6-1 9822 Siskiyou Etna Mills. Comment
  CAS-BOT-BC75939  Berberis piperiana W. R. Dudley 1901-8-16 s.n. Siskiyou Willow Creek Grade near summit, west of Gazelle. Comment
  CAS-BOT-BC76006  Berberis pumila John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53389 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones. 1249 Comment
  CAS-BOT-BC169490  Betula occidentalis John Thomas Howell 1964-5-11 40701 Siskiyou Scott Valley between Etna and Callahan Comment
  RSA45329  Betula occidentalis Dorothy Parker 1947-4-27 177 Siskiyou Along the banks of the East Fork of Scott River, Plowmans Valley. 1159 Comment
  POM29857  Bidens cernua Geo. D. Butler 1908-9-25 501 Siskiyou Shasta River Comment
  HSC92957  Bistorta bistortoides Jennifer Whipple 1978-10-6 2400 Siskiyou Primarily N facing slopes in the Eddy Creek drainage. 2317 Comment
  CAS-BOT-BC127928  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Cr. 914 Comment
  CAS-BOT-BC127944  Blepharipappus scaber Dorothy Parker 1948-5-16 s.n. Siskiyou east side of Scott Valley 914 Comment
  CHSC86656  Blepharipappus scaber Jenny Marr 1993-7-1 39 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1213857  Blepharipappus scaber Jean Langenheim 1957-5-19 4346 Siskiyou at intersection of Miners Creek road and Tiger Creek road Comment
  CAS-BOT-BC127932  Blepharipappus scaber L. E. Smith 1913-6-4 254 Siskiyou Yreka Comment
  CAS-BOT-BC127939  Blepharipappus scaber T. S. Brandegee 1887-6-1 s.n. Siskiyou Klamath River (Hornbrook) Comment
  POM31557  Blepharipappus scaber Geo. D. Butler 1909-4-14 590 Siskiyou Humbug Creek Comment
  POM351059  Blepharipappus scaber L. C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek, Siskiyou Mountains. Mt. Diablo Mer. 915 Comment
  UC375280  Boechera breweri Geo. D. Butler 1910-3-5 1118 Siskiyou Shasta Rim Comment
  UC165320  Boechera breweri Geo. D. Butler 1910-5-21 1379 Siskiyou Klamath River Comment
  CAS-BOT-BC16019  Boechera breweri subsp. breweri Doris K. Kildale 1929-5-12 7810 Siskiyou Sawyers Bar. North Fork of Salmon River. 609 Comment
  UC1409498  Boechera breweri subsp. breweri Frederick W. Oettinger 1968-8-10 465 Siskiyou e side Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area, English P 2042 Comment
  CAS-BOT-BC16026  Boechera breweri subsp. breweri John Thomas Howell 1937-7-26 13540 Siskiyou Caribou Mountain. 2438 Comment
  UCD114320  Boechera divaricarpa A. H. Murphy 1953-7-28 KNF 10 Siskiyou Long Gulch Camp, Siskiyou-Trinity County. 1889 Comment
  CAS-BOT-BC14275  Boechera pinetorum Alice Eastwood; John Thomas Howell 1937-6-26 5031 Siskiyou Near Etna. Comment
  UC1409351  Boechera platysperma Frederick W. Oettinger 1969-9-4 1636 Siskiyou peak just e Hancock Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, English P 1981 Comment
  JEPS53079  Boechera retrofracta Harley P. Chandler Jun 1901 1663 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  CAS-BOT-BC25617  Boechera retrofracta Alice Eastwood; John Thomas Howell 1937-6-26 5031 Siskiyou Near Etna. Comment
  CAS-BOT-BC25623  Boechera retrofracta George Dexter Butler 1909-5-1 728 Siskiyou Near Yreka. Comment
  HSC103180  Boechera rollei Dana York 2012-7-21 3129 Siskiyou Rogue River-Siskiyou National Forest, Siskiyou Mountains, ridge above Echo Lake. 1790 Comment
  UC673135  Boechera subpinnatifida Lincoln Constance and Reed C. Rollins 1942-5-14 2931 Siskiyou 6 mi n Yreka; Klamath-Siskiyou Region, Shasta River 762 Comment
  CAS-BOT-BC25930  Boechera suffrutescens John Thomas Howell 1937-7-21 13204 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  UC42357  Botrychium multifidum Marshall A. Howe 1894-7-30 Siskiyou Sisson Comment
  JEPS25843  Boykinia major Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7468 Siskiyou at edge Twin Valley meadows (about 13 mi nw of Happy Camp); Siskiyou Mountains 1524 Comment
  JEPS83833  Boykinia major Wayne Roderick July 1978 Siskiyou vicinity Cook and Green Pass (near spring w of Pass); Siskiyou Mountains, vicin Cook and Green Pass 1463 Comment
  HSC69437  Boykinia major John Palmer 1980-8-13 793 Siskiyou Dead Cow Creek near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  JEPS49659  Boykinia major Geo. D. Butler 1908-8-22 217 Siskiyou summit Salmon Mountain; Cabin near summit Salmon Mountain 1676 Comment
  UC375289  Brassica nigra Geo. D. Butler 1909-6-23 1051 Siskiyou Fields near Yreka. Comment
  CAS-BOT-BC100469  Brickellia californica Louis C. Wheeler 1934-9-15 3264 Siskiyou Walker, Klamath River, Siskiyou Mts. 518 Comment
  JEPS111015  Brickellia grandiflora J. K. Nelson with J. R. and Soren Nelson 2004-8-29 2004 -96 Siskiyou South side Mt. Shasta, south side of McKenzie Butte, along Road 31 1584 Comment
  SJSU6077  Brickellia grandiflora R. W. Trivelpiece 1971-8-11 67 Siskiyou near Grass Lake, 4.5 mi N of Sheep Rock, eastern Siskiyou County 1905 Comment
  UCSB13157  Brodiaea coronaria Breedlove, Dennis 1962-6-10 Siskiyou Grassy roadbank along Indian Creek Road, 2.3 miles northwest of Happy Camp; Siskiyou Mountains 365 Comment
  UC3257  Brodiaea coronaria subsp. coronaria Miss Edmonds 1890-7-8 Siskiyou Comment
  SEINET10533786  Brodiaea crocea F. Marion Ownbey 1941-6-22 Ownbey 2419 Siskiyou Gravelly soil in open pine forest, just south of Craggy Mounatin, Northwest of Yreka. Comment
  CAS-BOT-BC144102  Bromus Arthur Menzies 1962-7-26 s.n. Siskiyou Morgan Meadows, base of Mount Eddy. 1706 Comment
  CHSC98798  Bromus J. K. Nelson; Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -017 Siskiyou North side of Mt. Shasta, south of Hwy 97; Hotlum Fire area burned in February 2006. 1090 Comment
  UC204738  Bromus carinatus var. carinatus Geo. D. Butler 1910-7-3 1622 Siskiyou Goosenest Foothills 1219 Comment
  CAS-BOT-BC148798  Bromus carinatus var. marginatus John Thomas Howell 1939-8-2 14932 Siskiyou Marble Mountains. Spirit Lake. 1828 Comment
  CHSC116238  Bromus carinatus var. marginatus Barbara L. Wilson; Richard E. Brainerd 2010-8-5 16229 Siskiyou Shasta-Trinity National Forest, south of Mount Shasta itself, on road 40N88 at its junction with 41N31, 3.5 miles by road north of Highway 89. 1596 Comment
  CAS-BOT-BC148795  Bromus carinatus var. marginatus G. P. Rixford s.n. Siskiyou South side of Shaft-Rock Mountain Hilt. Comment
  UCD59474  Bromus diandrus August L. Hormay 1932-4-20 s.n. Siskiyou Brownell. Comment
  CHSC91358  Bromus japonicus Lowell Ahart; John Dittes 2005-6-9 12009 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  UCSB63786  Bromus japonicus Oswald, Vernon; Ahart, Lowell 1998-7-21 Siskiyou Hwy 97 between Weed and Macdoel at W end of Grass Lake (T44N R3W NE1/4 Sect 28) 1524 Comment
  UCD58981  Bromus madritensis August L. Hormay 1932-4-20 s.n. Siskiyou Brownell. Comment
  POM204679  Bromus marginatus Copeland 1903-09 3790 Siskiyou Mt. Eddy, California 1585 Comment
  RSA184783  Bromus marginatus Gilbert Muth 1966-7-22 434 Siskiyou Meadow below Marble Rim, Marble Mountains. 2012 Comment
  RSA239067  Bromus marginatus Frederick W. Oettinger 1969-8-13 1351 Siskiyou Southeast ridge of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  HSC22856  Bromus orcuttianus J. O. Sawyer 1969-6-11 816 Siskiyou Ridge next to C.C.C. road, near N fork of Horse Range Creek 1357 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
  UC144810  Bromus tectorum A. A. Heller 1905-6-9 8012 Siskiyou Montague Comment
  CAS-BOT-BC520388  Calamagrostis canadensis var. canadensis Dana York 2011-9-9 3099 Siskiyou Klamath National Forest, a few meters inside Marble Mountain Wilderness at Isinglass Lake 1985 Comment
  CAS-BOT-BC185260  Calamagrostis koelerioides Doris K. Kildale 1929-8-24 9009 Siskiyou Preston Peak. Rattlesnake Meadow. 1676 Comment
  UC204771  Calamagrostis koelerioides Geo. D. Butler 1910-7-7 1661 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC112319  Calliscirpus criniger Peter H. Raven 1956-8-4 10383 Siskiyou Ridge S of Mt Eddy. 2286 Comment
  HSC19314  Callitropsis nootkatensis J. O. Sawyer 1968-9-10 675 Siskiyou Near top of Preston Peak 1524 Comment
  CAS-BOT-BC85733  Calocedrus decurrens H. A. Thomas; J. H. Thomas 1954-7-27 4558 Siskiyou Salmon - Trinity Mts. about 6 miles SE of Cecilville. Between Mt. Veiw Cabin and S. Fork of Salmon River. 944 Comment
  RSA237991  Calocedrus decurrens Frederick W. Oettinger 1968-8-13 505 Siskiyou Northeast side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UC618672  Calochortus coeruleus unknown 1938-7-1 11154 Siskiyou above Bear Spring; Mount Shasta Comment
  SEINET4169788  Calochortus elegans C. L. Hitchcock, J. S. Martin 1939-7-9 5335 Siskiyou Paradise Lake , near King's Lake 1768 Comment
  UC60900  Calochortus macrocarpus Mrs. E. A. Wilson 1902-7-2 Siskiyou Sheep Rock Mount Shasta Comment
  UC1170099  Calochortus macrocarpus unknown 1956-7-16 30302 Siskiyou n side Mount Shasta (along U.S. Hwy 97, above hwy) 1219 Comment
  JEPS55632  Calochortus nudus Wayne Roderick 1966-6-26 Siskiyou Castle Lake Camp 1676 Comment
  SBBG22938  Calochortus nudus H. and M. Dearing 1939-6-30 3754 Siskiyou near Callahan, Trinity Alps Rd Comment
  CAS-BOT-BC493090  Calochortus nudus W. R. Dudley 1893-6-19 s.n. Siskiyou Woods near Sisson Comment
  CAS-BOT-BC494020  Calochortus tolmiei J. H. Thomas 1954-5-12 4121 Siskiyou Salmon Mountains, klamath National Forest. Near south Fork of Salmon River, 5 to 9 miles southeast of Cecilville 975 Comment
  HSC44915  Calochortus tolmiei J. P. Smith 1973-5-5 6483 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA0120945  Caltha biflora Frederick W. Oettinger 1967-7-6 151 Siskiyou Statue Creek just below the highest clear out block of the Music Creek Logging Sale (block M). The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  CAS-BOT-BC181504  Caltha leptosepala Doris K. Kildale 1928-8-19 6546 Siskiyou Hancock Lake on trail to Marble Mountain 2133 Comment
  CAS-BOT-BC273390  Calycadenia fremontii David D. Keck 1946-7-14 5693 Siskiyou Klamath River, 2 mi. N. of Somes Bar 213 Comment
  HSC17650  Calyptridium monospermum D. E. Anderson 1962-8-5 2311 Siskiyou 3 mi. W of Bartlett, 1 mi. N of Shasta Co. line on Hwy. 89 Comment
  HSC646  Calystegia malacophylla William J. Ferlatte Jul 1967 616 Siskiyou Along the Yellow Rose Mine Trail 1677 Comment
  CAS-BOT-BC221253  Calystegia malacophylla subsp. malacophylla A. A. Heller 1905-6-5 7988 Siskiyou Shasta Springs Comment
  CAS-BOT-BC497585  Camassia quamash subsp. breviflora Frank W. Gould 1940-5-15 1224 Siskiyou Bull Meadows, Goosenest Mountain 1524 Comment
  CAS-BOT-BC497588  Camassia quamash subsp. breviflora D. E. Breedlove 1962-6-11 3372 Siskiyou Along State Highway 89, 17.6 miles east of McCloud; Cascade Mts. 1219 Comment
  CAS-BOT-BC37004  Camelina microcarpa R. E. Frenkel 1963-7-15 259 Siskiyou On Everitt Memorial Highway, 1.7 miles north of McCloud River RailRoad crossing near Mount Shasta. 1290 Comment
  CHSC78257  Camissonia contorta Vernon H. Oswald 2000-6-5 9926 Siskiyou Butte Valley National Grassland between Macdoel and Dorris, on the north side of Meiss Lake-Sams Neck Road 0.6 mi west of Hwy. 97. 1295 Comment
  JEPS11747  Campanula prenanthoides Geo. D. Butler 1908-7-20 37 Siskiyou near Yreka; Head of Long Gulch Comment
  SEINET10463100  Campanula prenanthoides Muth 1976-7-27 MUTH s.n. Siskiyou Near Twin Valley, on the Preston Peak quadrangle; close to the town of Happy Camp 1646 Comment
  SEINET10972065  Campanula prenanthoides Muth 1975-8-1 MUTH s.n. Siskiyou NR SUTCLIFFE CR., PRESTON PK QUAD, NR HAPPY CAMP 4400', COBBLY SOIL Comment
  SEINET8037769  Campanula prenanthoides G. D. Butler 1910-8-7 1815 Siskiyou Humbug Mountain. 1219 Comment
  JEPS80538  Campanula rotundifolia Gilbert Muth 1965-8-18 235 Siskiyou trail behind Black Mountain; Marble Mt. Wilderness Area 1950 Comment
  HSC75343  Campanula rotundifolia J. O. Sawyer, M. Mesler 1980-8-11 4039 Siskiyou Marble Mtn. Wilderness Area. 2073 Comment
  RSA22036  Campanula rotundifolia J. T. Howell 1939-8-4 15046 Siskiyou Marble Rim, Marble Mts 1890 Comment
  POM59315  Campanula scabrella E. B. Copeland 1903-8-18 3844 Siskiyou Mount Eddy 2744 Comment
  CHSC178  Campanula scouleri V. Holt 1932-7-13 Siskiyou Nixon's Camp, Mt. Shasta. 670 Comment
  SEINET10872980  Campanula scouleri Muth 1975-8-1 MUTH s.n. Siskiyou Near Sutcliffe Creek; Preston Peak quadrangle near Happy Camp 1341 Comment
  SEINET10463436  Campanula scouleri A. Arthur Heller 1914-8-25 Heller s.n. Siskiyou DEETZ STATION NEAR BLACK BUTTE 1158 Comment
  SEINET10463604  Campanula scouleri Setchell 1902-7-26 SETCHELL s.n. Siskiyou SISSON, MT. SHASTA Comment
  SEINET10463788  Campanula scouleri Joseph W. Congdon 1900-8-16 Congdon s.n. Siskiyou Castle Lake Trail Comment
  SEINET10972096  Campanula scouleri Joseph W. Congdon 1900-8-10 Congdon s.n. Siskiyou NR. SISSON Comment
  CAS-BOT-BC266467  Campanula wilkinsiana R. H. Bohmannson 1926-7-1 s.n. Siskiyou Mount Shasta Comment
  UC642519  Campanula wilkinsiana W. Bridge Cooke 1939-8-24 13894 Siskiyou along creeks Mount Shasta, Squaw Valley Creek meadows Comment
  SEINET10463882  Campanula wilkinsiana Cooke 1939-8-24 COOKE 11894 Siskiyou COMMON ALONG CREEKS IN SQUAW VALLEY CREEK MEADOWS 2286 Comment
  POM369314  Cardamine Chadwick, Mrs Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  UC618905  Cardamine bellidifolia var. pachyphylla Reed Rollins 1938-9-8 11647 Siskiyou n slope Red Butte (Mount Shasta); , n slope Red Butte Comment
  JEPS53306  Cardamine cordifolia var. lyallii Geo. D. Butler 1908-8-8 132 Siskiyou near pond at head Marble Mountain Valley 1676 Comment
  RSA297045  Cardamine cordifolia var. lyallii John F. Emmel 1974-7-21 521 Siskiyou Meaadows 0.2 air mile N of N end of lower Wright Lake, Marble Mtn Wildernes area. 2073 Comment
  CAS-BOT-BC38067  Cardamine pachystigma W. R. Dudley 1893-6-20 s.n. Siskiyou Near Castle Lake, vicinity of Mount Shasta. Comment
  CDA16166  Cardaria draba G. F. Hrusa 1998-5-25 14473 Siskiyou Klamath Ranges; Along Klamath R. at Yreka (Hwy 96 rest area) on N side of entrance rd. 632 Comment
  RSA238957  Carex Frederick W. Oettinger 1969-8-13 1355 Siskiyou North side of Crapo Ridge trail to Tom Taylor Cabin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC19771  Carex abrupta Louis C. Wheeler 1935-7-26 3718 Siskiyou Siskiyou Mountains. Jaynes Canyon. 1950 Comment
  HSC76855  Carex amplifolia L. P. Janeway 1982-6-18 77 Siskiyou 1 1/2 mi. up FS 19N07 from Indian Creek Rd., near a small creek 701 Comment
  HSC76858  Carex amplifolia L. P. Janeway 1982-8-21 170 Siskiyou E facing slope below the Poker Flat/Twin Valley Trail 1585 Comment
  CHSC62793  Carex angustata L. P. Janeway 1993-8-30 4561 Siskiyou West side of Cedar Lake; head of South Fork Sacramento River. 1741 Comment
  HSC37158  Carex angustata J. O. Sawyer 1969-7-26 1571 Siskiyou SE facing slope near S Sugar Creek 1700 Comment
  POM81701  Carex angustata Geo D. Butler 1909-6-22 855 Siskiyou Goosenest Foothills 1524 Comment
  HSC76845  Carex athrostachya L. P. Janeway 1982-8-2 104 Siskiyou 3 1/2 mi. along spur road into Coon Run 793 Comment
  CHSC75766  Carex aurea Vernon H. Oswald; Lowell Ahart 1999-7-5 9817 Siskiyou Hwy. 3 4.0 mi southeast of Gazelle-Callahan Hwy. 1365 Comment
  CAS-BOT-BC19084  Carex aurea William Bridge Cooke 1939-6-23 13539 Siskiyou Mount Shasta. Wagon Camp. 1737 Comment
  CAS-BOT-BC19559  Carex bolanderi A. A. Heller 1905-6-13 8025 Siskiyou Near Shasta Springs. Along the railroad just above Shasta Springs. Comment
  CAS-BOT-BC19655  Carex brainerdii L. P. Janeway 1983-8-7 523 Siskiyou East side of Peak 5148, near end of road 17N32 ca 19 miles from Indian Creek Road. 1554 Comment
  HSC77171  Carex brainerdii L. P. Janeway 1983-6-25 336 Siskiyou Cutbank of dirt road, 0.5 mi. N of W Branch USFS Station 671 Comment
  SD71330  Carex breweri B. B. Chistman 1966-7-4 Siskiyou Mt. Shasta. 3657 Comment
  CAS-BOT-BC34881  Carex deflexa var. boottii John Thomas Howell 1939-8-3 15007 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  RSA237266  Carex deflexa var. boottii Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1227 Siskiyou Southeast of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  HSC96548  Carex echinata subsp. echinata Gordon Leppig 1998-7-10 904 Siskiyou Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  SEINET10921600  Carex epapillosa A. Arthur Heller 1922-7-15 Heller 13709 Siskiyou Plentiful in moist meadow at Medicine Lake. 2134 Comment
  HSC37425  Carex fissuricola J. O. Sawyer 1969-8-5 1751 Siskiyou W of Little Duck Lake 2073 Comment
  SEINET3901319  Carex globosa D. H. Norris 1972-6-11 22844 Siskiyou Along Duck Lakes trail near Parrott's Mill Road.; 0 1676 Comment
  JEPS25940  Carex halliana B. C. Goldsmith 1916-9-29 29 a Siskiyou Medicine Lake 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
  CAS-BOT-BC28082  Carex hoodii John Thomas Howell 1937-7-25 13484 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  HSC97427  Carex hoodii Jennifer Whipple 1977-7-22 2031 Siskiyou SW of Dobkins Lake along the drainage into the lake 2195 Comment
  CAS-BOT-BC7598  Carex inops subsp. inops Ralph K. Gierisch 1968-8-6 3363 Siskiyou Elk Flat in Shasta-Trinity National Forest. 1310 Comment
  JEPS102967  Carex inops subsp. inops L. P. Janeway 2002-7-13 7641 Siskiyou High Cascade Range. Along a logging spur road 0.2 km south-east of Road 13 (Pilgrim Creek Road) 9.0 km northeast of the Military Pass Road (Road 19); 0.2 km north of Edison Creek. Visible along miles of Pilgrim Creek Road 1347 Comment
  JEPS109549  Carex inops subsp. inops Dean W. Taylor 2001-8-28 17912 Siskiyou Mt. Shasta, along Pilgrim Creek road (Forest Road 13) at the junction with Forest Road 19 (7.3 miles N from Highway 89) ca. 5 air miles NE of McCloud. 1207 Comment
  CAS-BOT-BC7660  Carex integra W. J. Ferlatte 1966-6-23 124 Siskiyou Yellow Rose Mine. 1981 Comment
  POM254203  Carex integra J. T. Howell 1939-8-3 15002 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  UC1265329  Carex integra Frederick W. Oettinger 1969-8-4 1175 Siskiyou Tobacco Lake Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  HSC39390  Carex interior J. O. Sawyer 1969-8-5 1954 Siskiyou Above the S Fork of Sugar Creek 1814 Comment
  UCR66602  Carex kelloggii J. T. Howell 1939-8-3 14960 Siskiyou Marble Mountains, Spirit Lake. 1829 Comment
  CAS-BOT-BC7579  Carex laeviculmis R. Tallent 1987-8-12 899 Siskiyou Long Gulch Lake. Klamath National Forest. 1940 Comment
  UC1265338  Carex laeviculmis Frederick W. Oettinger and R. F. Thorne 1969-8-4 1179 Siskiyou just n Tobacco lake; Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  CAS-BOT-BC28429  Carex lenticularis var. lipocarpa John Thomas Howell 1939-8-7 15128 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  UC1265339  Carex lenticularis var. lipocarpa Frederick W. Oettinger 1968-9-7 750 Siskiyou n side Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area 2042 Comment
  HSC62586  Carex mertensii Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  CAS-BOT-BC31838  Carex microptera William Bridge Cooke 1939-7-21 13732 Siskiyou In small bog around lower Wagon Camp Springs. 1737 Comment
  HSC97418  Carex multicaulis Jennifer Whipple 1976-6-12 983 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2317 Comment
  JEPS63498  Carex multicaulis W. L. Jepson 1940-6-27 20043 Siskiyou e slope, Mt. Shasta Mt. Shasta 2133 Comment
  JEPS63686  Carex multicaulis Geo. D. Butler 1909-5-30 856 Siskiyou Humbug Mountain Comment
  CAS-BOT-BC32014  Carex multicaulis R. E. Frenkel 1964-7-14 696 Siskiyou On Everitt Memorial Hwy near Mt. Shasta, 4.7 mi N of McCloud River RR crossing. 1545 Comment
  SEINET4022366  Carex multicaulis C. Davidson 1975-1 2651 Siskiyou Klamath Nat'l Forest. 9.1 mi. west of Gazelle on road to Callahan. 1120 Comment
  UC1359 Image available Carex multicostata W. H. Brewer 1862-9-13 1398 Siskiyou Mt. Shasta 2133 Comment
  HSC85845  Carex multicostata L. P. Janeway 1983-8-26 609 Siskiyou Poker Flat, across road on N side of meadow 1524 Comment
  RSA237308  Carex multicostata Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1244 Siskiyou Pine Lake Meadows. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1845 Comment
  JEPS119369  Carex nardina Dana York 2011-9-8 3087 Siskiyou Klamath National Forest, slopes of Kings Castle. Comment
  HSC77269  Carex nebrascensis L. P. Janeway 1983-7-30 468 Siskiyou Along road to Copco Lake 884 Comment
  UC618742  Carex nervina J. W. Stacey 1938-7-15 11255 Siskiyou Wagon Camp Mount Shasta Comment
  HSC96545  Carex nigricans Gordon Leppig 1998-8-14 1018 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  RSA237303  Carex nigricans Frederick W. Oettinger 1969-9-2 1600 Siskiyou On the cool north side of English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  UCR45815  Carex nudata L. P. Janeway 1984-6-21 461 Siskiyou Dillon Mtn. Q., East side of Klamath River at Persido Bar. 213 Comment
  RSA335341  Carex nudata L. P. Janeway 1983-7-2 358 Siskiyou Along north shore Klamath river ca. 2 1/2 miles west of Fort Goff. 396 Comment
  SEINET10711984  Carex ormantha Louis C. Wheeler 1935-7-26 Wheeler 3721 Siskiyou Wet sunny meadow. Jaynes Canyon. Siskiyou Mts. S12, T47N, R10W, Mt. Diablo Mer. 1951 Comment
  CHSC40202  Carex pachystachya L. P. Janeway 1983-8-27 622 Siskiyou South end and sl above dry bed of vernal pond. Near the Twin Valley/Poker Flat trail. 1676 Comment
  RSA20485  Carex pellita L. S. Rose 1937-7-3 37393 Siskiyou Weed. 945 Comment
  CAS-BOT-BC118791  Carex preslii William Bridge Cooke 1939-7-12 13635 Siskiyou On the SW slopes of the mountain near Horse Camp. 2438 Comment
  CHSC53536  Carex rossii L. P. Janeway 1983-8-13 535 Siskiyou Flat on S side of and above S Fk Indian Cr. 1463 Comment
  JEPS113331  Carex rossii L. P. Janeway 2006-7-2 8727 Siskiyou Klamath Ranges. Salmon Mountains; near minor drainage to South Fork Scott River from the west, 1.6 km north of Carter Meadows Summit. Comment
  CDA33140  Carex rossii D. Osterhandt 1977-6-29 Siskiyou Forest plantation, Klamath National Forest, near Weed. 0 Comment
  HSC37155  Carex rossii J. O. Sawyer 1969-6-12 886 Siskiyou Above Sugar Creek, NW facing slope 1619 Comment
  HSC69103  Carex rostrata Maralyn A. Renner 1980-8-4 2227 Siskiyou Flint Valley 1390 Comment
  HSC69185  Carex rostrata Maralyn A. Renner 1980-8-31 2633 Siskiyou Twin Valley. 1494 Comment
  HSC103365  Carex scabriuscula Thomas W. Nelson, Jane Nelson 1982-7-16 7233 Siskiyou Along west side of Forest Service Rd. 42N17, at summit above Deadfall Meadow, near crossing of Pacific Crest Trail. (Siskiyou-Trinity county line) 2073 Comment
  RSA238965  Carex scopulorum Frederick W. Oettinger 1969-9-4 1649 Siskiyou Tobacco Lake. Salmon Mountains High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  JEPS123408  Carex scopulorum var. bracteosa Julie Kierstead Nelson with Don Lepley, Rhonda Posey 2015-8-13 2015 -129 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. Comment
  CAS-BOT-BC118225  Carex scopulorum var. bracteosa Doris K. Kildale 1929-8-25 9111 Siskiyou Rattlesnake Meadow, trail to Preston Peak 1676 Comment
  SEINET7575020 Image available Carex scopulorum var. bracteosa Frederick W. Oettinger 1968-9-5 710 Siskiyou Salmon Mountains, the High Lake Basins in the vicinity of English Peak Marble, Mountain Wilderness Area, south end of Diamond Lake. 2073 Comment
  CDA33150  Carex serratodens C. S. Giebner 1968-5-21 Siskiyou Gazelle; Robertson prop., State Hwy. 0 Comment
  CAS-BOT-BC117238  Carex spectabilis William Bridge Cooke 1938-9-8 11666 Siskiyou Mt. Shasta. 2590 Comment
  CAS-BOT-BC117255  Carex spectabilis John Thomas Howell 1939-8-8 15189 Siskiyou Black Mt. Marble Mts. Comment
  CAS-BOT-BC117258  Carex spectabilis John Thomas Howell 1939-8-9 15232 Siskiyou Ridge South of Marble Valley, Marble Mts. Comment
  HSC76308  Carex spectabilis L. P. Janeway 1982-8-15 146 Siskiyou Below Echo Lake 1646 Comment
  CHSC98757  Carex straminiformis L. P. Janeway; B. Castro 2007-7-29 9140 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
  POM79940  Carex straminiformis E. B. Copeland 1903-8-16 3893 Siskiyou Mt. Shasta. 2439 Comment
  HSC86440  Carex subfusca D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 2134 Comment
  CAS-BOT-BC115845  Carex subfusca William Bridge Cooke 1938-8-22 11340 Siskiyou Sisson Southern Trail. 1828 Comment
  CAS-BOT-BC115848  Carex subfusca William Bridge Cooke 1940-7-12 15353 Siskiyou Sisson Southern Trail Spring. 1981 Comment
  UC1265469  Carex vesicaria var. major Frederick W. Oettinger 1968-9-4 693 Siskiyou Salmon Mountains, high lake basins in the vicinity of English Peak Marble Mountain wilderness area, along west shoreline of Abbott's Lake; white Fir Forest-Red Fir forest transition area 1722 Comment
  CAS-BOT-BC59706  Cassiope mertensiana John Thomas Howell 1937-7-25 13443 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  HSC736  Cassiope mertensiana subsp. ciliolata William J. Ferlatte 1966-8-5 351 Siskiyou Caribou Mtn. 2470 Comment
  RSA238340  Cassiope mertensiana subsp. ciliolata Frederick W. Oettinger 1968-8-1 336 Siskiyou Inlet stream to Little Hancock Lake as it passes through a wet boreal meadow just So. of the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  CAS-BOT-BC249374  Castilleja applegatei K. L. Chambers 1967-6-22 2866 Siskiyou Siskiyou Mountains. About 500 ft. above and east of the freeway (Hwy. 5) at Hilts exit, Siskiyou Pass 1097 Comment
  JEPS3870  Castilleja arachnoidea W. L. Jepson 1940-6-27 20034 Siskiyou e slope Mt. Shasta 1828 Comment
  UC705753  Castilleja arachnoidea Marion Ownbey, Fred G. Meyer 1940-7-5 2180 Siskiyou e side Mt. Shasta (well below timber line) Comment
  UC885405  Castilleja arachnoidea Alice Eastwood 1921-7-29 10983 Siskiyou on road to Medicine Lake; Bear Spring Comment
  HSC29387  Castilleja arachnoidea Frederick W. Oettinger 1968-8-4 393 Siskiyou Salmon Mts., Crapo Peak Ridge 2195 Comment
  UC164365  Castilleja attenuata Geo. D. Butler 1910-5-8 1314 Siskiyou near Yreka Comment
  JEPS66322  Castilleja lacera L. R. Heckard with T. I. Chuang 1971-6-16 2586 Siskiyou ca 2 mi n Weed (along U.S. Highway 97) Comment
  RSA104156  Castilleja linariifolia Elmer I. Applegate 1923-8-17 3829 Siskiyou Laird's Ranch, south end of Lower Klamath Lake. Comment
  CAS-BOT-BC254100  Castilleja miniata Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  CAS-BOT-BC254101  Castilleja miniata John Thomas Howell 1937-7-22 13293 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC254106  Castilleja miniata Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Skyhigh Lake Comment
  UC922473  Castilleja miniata Annie M. Alexander and Louise Kellogg 1949-7-20 5811 Siskiyou slope above Paradise Lake; Marble Mountains 1920 Comment
  CAS-BOT-BC254025  Castilleja miniata G. Muth 1965-7-29 s.n. Siskiyou Meadow below marble rim Comment
  HSC74866  Castilleja pruinosa J. P. Smith, Jennifer Whipple 1978-7-2 9986 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  JEPS3824  Castilleja pruinosa Geo. D. Butler 1909-5-30 757 Siskiyou Humbug Mountain Comment
  UC1187076  Castilleja pruinosa David D. Keck 1940-6-13 5175 Siskiyou 9 mi s Macdoel (on U.S. Hwy 97, between Dorris and Weed) 1463 Comment
  UCR37821  Castilleja pruinosa K. T. Stillman 1976-7-15 242 Siskiyou Marble Mountain Wilderness Area, Scott Bar 15' Q. 1951 Comment
  POM42532  Castilleja pruinosa Geo. D. Butler 1910-6-7 1529 Siskiyou Greenhorn Mountain. Comment
  RSA184820  Castilleja pruinosa Gilbert Muth 1966-7-14 394 -A Siskiyou Marble, south of Marble Valley, Marble Mountains. 1793 Comment
  RSA428400B  Castilleja pruinosa M. B. Dunkle 1944-7-15 9091 Siskiyou Siskiyou National Forest. Coastal northern California. 1768 Comment
  CAS-BOT-BC241082  Castilleja schizotricha Annie M. Alexander; Louise Kellogg 1949-7-22 5840 Siskiyou Trail to Kings Castle, top of ridge, Paradise Lake, Marble Mountains 2072 Comment
  CAS-BOT-BC47941  Ceanothus O. V. Matthews 1939-7-8 26 Siskiyou From along Kangaroo Mtn. (?) Forest Service trail near Seiad Grove of Bakers Cypress 1371 Comment
  CAS-BOT-BC48656  Ceanothus cordulatus Alice Eastwood 1923-5-23 11904 Siskiyou Cantara Comment
  CAS-BOT-BC48710  Ceanothus cordulatus Wm. Bridge Cooke 1939-7-14 13674 Siskiyou Along the Sisson Southern Trail in the chaparral 1219 Comment
  HSC59636  Ceanothus cuneatus J. P. Smith 1973-5-5 6505 Siskiyou Along Cook and Green Pass Rd. Comment
  POM332457  Ceanothus cuneatus J. P. Smith 1973-5-5 6524 Siskiyou Scott Bar along the Scott River. Comment
  SEINET11616398 Image available Ceanothus incanus A. A. Heller 1905-6-16 8051 Siskiyou Near Sisson Comment
  CAS-BOT-BC50686  Ceanothus integerrimus var. macrothyrsus Geo. D. Butler 1910-8-7 1819 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC53099  Ceanothus prostratus Elmer I. Applegate 1935-6-8 9422 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  JEPS42257  Ceanothus prostratus Willis L. Jepson 1894-8-4 14022 Siskiyou Mt. Shasta Comment
  POM85302  Ceanothus prostratus Geo. D. Butler 1910-5-10 1317 Siskiyou Goosenest Foothills. Comment
  RSA14414  Ceanothus prostratus Elmer I. Applegate 1929-6-18 5740 Siskiyou [No location data on label] Comment
  RSA256581  Ceanothus prostratus J. P. Smith 1974-5-26 7554 Siskiyou Along Forest Service Road 47N03. 1524 Comment
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Feb 26 2013
  UC1185942  Ceanothus prostratus L. E. Detling 1950-6-9 6599 Siskiyou Black Butte Summit (Hwy 99) 1188 Comment
  UC455334  Ceanothus prostratus I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat (Mt. Bradley); Mt. Bradley Comment
  UC618736  Ceanothus prostratus W. Bridge Cooke 1938-6-17 11015 Siskiyou Sisson Southern Trail Mount Shasta, Sisson Southern Trail 1371 Comment
  UCD13257  Ceanothus prostratus K. F. Mawdsley 1996-7-9 11 Siskiyou California, Siskiyou County, Russian Wilderness in Klamath National Forest. From Eaton-Duck Lakes Trailhead. T40N, R9W, southwest 1/4 of Section 18, Eaton Peak 7.5' topo. Elev. 5800. Comment
  JEPS83631  Ceanothus sanguineus R. Raiche, K. Zadnik 1987-9-1 RR 70698 Siskiyou US Forest Svc Rd 47N01 ca 0.5 mi n of bridge over W Fork (Jaynes Cyn below confluence of Jaynes Crk and W Fork of Beaver Crk, nw of Klamath River (town), Jaynes Cyn..); below confl Jaynes Crk and W Fork Beaver Crk, Jaynes Cyn dra 987 Comment
  HSC100187  Ceanothus velutinus J. P. Smith, & J. O. Sawyer 2011-9-3 13405 Siskiyou Along Hundrey Creek-Hilt Road (Klamath National Forest Service Road 11). 1111 Comment
  HSC59642  Ceanothus velutinus J. P. Smith, Steve Selva 1970-6-16 4047 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  RSA126293  Ceanothus velutinus I. L. Wiggins 1955-7-24 13488 Siskiyou Trail at crossing of China Creek, above diversion dam Comment
  RSA398976  Ceanothus velutinus H. E. McMinn 1931-6-27 2519 Siskiyou Shasta City. Comment
  JEPS42299  Ceanothus velutinus var. lorenzenii L. N. Lorenzen 1920-9-19 Siskiyou Sisson Comment
  CAS-BOT-BC52804  Ceanothus velutinus var. velutinus Gilbert Muth 1966-7-30 141 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  UCD130021  Centaurea diffusa T. C. Fuller 1967-8-15 16262 Siskiyou west side of Highway 97 to Weed, 3 miles south of Macdoel. Comment
  CDA15579  Centaurea nigra G. F. Hrusa 1998-7-5 14686 Siskiyou Siskiyou Mountains; Immed. S of Indian Creek Bridge at base of pass between Happy Camp CA. & O'Brien OR. Comment
  CDA7338  Centaurea squarrosa T. C. Fuller 1969-7-1 18618 Siskiyou Hawkinsville, just north of Yreka. 0 Comment
  CAS-BOT-BC288796  Centromadia fitchii Louis C. Wheeler 1934-10-6 3309 Siskiyou Shasta Valley 2 miles SE of Yreka 853 Comment
  UC165423  Centromadia pungens subsp. pungens Geo. D. Butler 1910-8-18 1840 Siskiyou Shasta Valley Comment
  HSC14  Cerastium arvense William J. Ferlatte 1966-6-22 96 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  CDA3359  Cerastium dichotomum J. Di Tomaso 2002-5-17 s.n. Siskiyou 8 miles northeast of Montague. On York Road, 300 m east of intersection with Mulloy Road. 0 Comment
  CAS-BOT-BC207626  Cercis occidentalis Doris K. Kildale 1929-5-31 9123 Siskiyou Cecilville, south fork of Salmon River. Comment
  CAS-BOT-BC147686  Cercocarpus betuloides var. betuloides W. R. Dudley 1899-8-24 s.n. Siskiyou Grade up from Willow Creek, west of Gazelle Comment
  CAS-BOT-BC148519  Cercocarpus ledifolius var. ledifolius Geo. D. Butler 1910-5-4 1274 Siskiyou Near Yreka Comment
  UC466591  Cercocarpus ledifolius var. ledifolius Annie M. Alexander and Louise Kellogg 1911-6-27 163 Siskiyou Wildcat Peak 2194 Comment
  HSC253  Chaenactis douglasii var. douglasii William J. Ferlatte 1967-8-23 1086 Siskiyou Head of Kidd Creek; E side of Black Mtn. 2134 Comment
  UC1170098  Chaenactis douglasii var. douglasii unknown 1956-7-16 30293 Siskiyou above Hotlum Station (along old loggin road; n side of Mount Shasta); Mount Shasta 1524 Comment
  CAS-BOT-BC276779  Chaenactis douglasii var. douglasii W. B. Cooke; V. G. Cooke 1960-8-8 s.n. Siskiyou Fell fields, W side of Mud Creek Canyon, Mount Shasta 3048 Comment
  JEPS8879  Chaenactis suffrutescens W. L. Jepson 1907-7-4 2809 Siskiyou Scott Valley Comment
  SEINET10483290  Chamaebatiaria millefolium Mary Susan Taylor 1980-8-19 Taylor 3267 B Siskiyou T43N R1E nw sec 19, Medicine Lake quad. Shasta-Trinity Natl Forest, in pumice/ obsidian outcrops, SE side of Little Glass Mountain. With J. Prouty & E. Heinz. 1951 Comment
  NY19023  Chamaecyparis lawsoniana H. E. Brown 1897-6-1 s.n. Siskiyou Near Sisson 1083.6 Comment
  UC1601872  Chamaesyce serpyllifolia Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2584 Siskiyou vicinity Mount Shasta Comment
  UC583154  Chamaesyce serpyllifolia Lewis S. Rose 1936-7-29 36702 Siskiyou Shasta Springs 762 Comment
  UC642565  Chamaesyce serpyllifolia L. W. Wheeler 1930-6-30 13578 Siskiyou Howard Mount Shasta Comment
  SBBG21790  Chamerion angustifolium D. Myrick 1964-7-25 947 Siskiyou Shasta Ski Bowl Hwy 1219 Comment
  CAS-BOT-BC70223  Cheilanthes gracillima Copeland 1903-7-16 3505 Siskiyou Mt. Shasta Comment
  HSC27081  Cheilanthes gracillima J. P. Smith, J. O. Sawyer 1972-9-13 5781 Siskiyou 0.5 mi. W of Cook and Green Pass on rd. to Lily Pad Lake. Comment
  RSA12618  Cheilanthes gracillima C. B. Wolf 1934-7-5 5967 Siskiyou 3 6/10 miles from Dry Lake Lookout on road to Horse Creek, Siskiyou Mountains 1982 Comment
  UC2026485  Cheilanthes gracillima Louis C. Wheeler 1958-8-21 7413 Siskiyou Siskiyou Mountains. Lily Pad Lake. Comment
  RSA120811  Cheilanthes gracillima G. D. Barbe 1955-7-9 156 Siskiyou South side of Kangaroo Lake, Scott Mountains 1829 Comment
  UCR143039  Cheilanthes intertexta L. C. Wheeler 1934-10-21 3344 Siskiyou Shasta Valley, 8 mi NE of Gazelle 869 Comment
  HSC92437  Chenopodium atrovirens Jennifer Whipple 1976-7-9 1384 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  UC1540165  Chenopodium rubrum Dean W. Taylor 1987-8-9 9293 Siskiyou along Hwy 161 (OR border) 8.3 mi w Highway 139; Lower Klamath National Wildlife Refuge 1249 Comment
  RSA64788  Chenopodium vulvaria L. C. Wheeler 1934-10-6 11412 Siskiyou Edge of path, Yreka. 793 Comment
  CAS-BOT-BC451342  Chimaphila menziesii John Thomas Howell 1939-8-6 15089 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CHSC9504  Chimaphila menziesii J. F. Goodwin 1971-7-3 141 Siskiyou 50 ft. south of road under firs, with orchids and ferns, 8.5 mi. south of Mt. Shasta Ski Bowl area. 1493 Comment
  SBBG25823  Chimaphila menziesii D. Myrick 1966-8-10 1527 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  CAS-BOT-BC452264  Chimaphila umbellata L. E. Smith 1913-9-1 555 Siskiyou Mt. Eddy Comment
  UCR90895  Chimaphila umbellata Kathy Harper, Dane Karr 1994-6-10 s.n. Siskiyou North Coast Range, Indian Creek Camp, 14.5 mi NW of Happy Camp along Indian Creek Road, off Hwy 96. Near campsites 7 to 9 610 Comment
  HSC36697  Chimaphila umbellata Brent Whitely 1975-6-28 95 Siskiyou 915 Comment
  CAS-BOT-BC36379  Chrysolepis chrysophylla Doris K. Kildale 1928-8-20 6626 Siskiyou at lead of north Fork Salmon River, Finleys upper Camp Comment
  CAS-BOT-BC36387  Chrysolepis chrysophylla W. R. Dudley 1907-8-20 s.n. Siskiyou Along Salmon River above mouth of trail creek Comment
  RSA237806  Chrysolepis sempervirens Frederick W. Oettinger 1967-8-26 326 Siskiyou On e.-face of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2226 Comment
  CAS-BOT-BC100855  Chrysothamnus viscidiflorus subsp. viscidiflorus S. F. Blake 1941-8-22 16205 Siskiyou in the Lava Park above Hotlum Station, north side of Mt. Shasta 1676 Comment
  CAS-BOT-BC100858  Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose 1941-8-28 41427 Siskiyou Dorris 1291 Comment
  LA28602  Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose; 1941-8-28 41427 Siskiyou Dorris 1291 Comment
  RSA78945  Chrysothamnus viscidiflorus subsp. viscidiflorus E. K. Balls, Percy C. Everett 1952-10-12 18172 Siskiyou 1.8 miles south of turn off to Medicine Lake, on road from Indian Well Ranger Station, Modoc Lava Beds National Monument. 1372 Comment
  RSA0070845  Cirsium andersonii Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4545 Siskiyou Along State Route 3, just N of Scott Mountain Summit. 1585 Comment
  CDA1133  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -A Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CAS-BOT-BC278045  Cirsium cymosum John Thomas Howell 1952-6-15 28361 Siskiyou Just east of Montague Comment
  CAS-BOT-BC278048  Cirsium cymosum John Thomas Howell 1952-6-15 28361 Siskiyou Montague Comment
  OBI54129  Cirsium cymosum var. canovirens David J. Keil, Kathleen Keil 1992-7-24 23560 Siskiyou Klamath Natl forest E of callahan. 2.1 m N of Kangaroo Lake on Rail Creek rd Comment
  CAS-BOT-BC279890  Cirsium douglasii var. breweri Peter H. Raven 1956-9-5 10442 Siskiyou North Fork of Sacramento River 2194 Comment
  CDA1274  Cirsium inamoenum T. C. Fuller 1979-10-3 20271 -A Siskiyou Goosenest Rd., 14 km northeast of Tennant. 0 Comment
  CDA1275  Cirsium inamoenum T. C. Fuller 1979-10-3 20271 -B Siskiyou Goosenest Rd., 14 km northeast of Tennant. 0 Comment
  CAS-BOT-BC285554  Cirsium occidentale var. candidissimum L. E. Smith 1913-7-1 447 Siskiyou Hilt Comment
  UC454286  Cirsium occidentale var. candidissimum I. J. Condit 1911-7-31 Siskiyou Shasta Springs Comment
  HSC26708  Cirsium remotifolium William J. Ferlatte 1971-9-18 1373 Siskiyou Big Flat near public campground 1524 Comment
  JEPS59177  Cirsium remotifolium var. odontolepis Geo. D. Butler 1908-8-4 335 Siskiyou Cold Spring Camp , Wooly Creek 1676 Comment
  CDA1610  Cirsium undulatum J. Massey 1988-7-7 s.n.-(B) Siskiyou East of Dorris, Glenn Butler property. 0 Comment
  CAS-BOT-BC228987  Cistanthe umbellata L. E. Smith 1913-5-23 241 Siskiyou Weed Comment
  HSC27687  Clarkia concinna subsp. concinna Carl W. Mize 1972-6-8 42 Siskiyou Along main trail 335 Comment
  UC618770  Clarkia rhomboidea W. Bridge Cooke 1938-6-17 11047 Siskiyou Sisson Southern Trail Mount Shasta Comment
  CAS-BOT-BC164744  Clarkia rhomboidea Wm. Bridge Cooke 1940-7-12 15339 Siskiyou Along the Memorial Highway, near MacBride Springs Comment
  CAS-BOT-BC164981  Clarkia rhomboidea Louis C. Wheeler 1934-6-19 2740 Siskiyou Klamath National Forest. North Hungry Cr. 1097 Comment
  HSC19168  Clarkia rhomboidea J. O. Sawyer 1969-7-9 1220 Siskiyou On trail to S Sugar Lake 1692 Comment
  HSC29137  Clarkia rhomboidea Frederick W. Oettinger, R. F. Thorne 1969-8-5 1212 Siskiyou Marble Mtn. Wilderness Area, Willow Spring on English Lake Trail 1677 Comment
  CDA23949  Claytonia exigua subsp. exigua F. D. Horn 1978-3-3 Siskiyou Shasta River Canyon near Yreka. 0 Comment
  HSC92978  Claytonia lanceolata Jennifer Whipple 1976-4-17 1030 Siskiyou Ridge between Durney Lake and Little Crater Lake 2378 Comment
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Sep 23 2019
  POM101992  Claytonia parviflora Geo. D. Butler 1910-5-8 1305 Siskiyou Near Yreka. Comment
  CDA23959  Claytonia rubra subsp. depressa T. C. Fuller 1970-5-27 19587 Siskiyou Interstate 5 at truck inspection station, Dunsmuir Grade, 4 miles north of Dunsmuir. 0 Comment
  UC1408943  Claytonia rubra subsp. rubra Frederick W. Oettinger 1969-7-29 1105 Siskiyou Uncle's Lake Salmon Mountains, Marble Mountain Wilderness Area, English P (vicinity of English Peak, w Siskiyou County) 1859 Comment
  UC618649  Claytonia rubra subsp. rubra unknown 1938-6-24 11063 Siskiyou MacBride Springs; Mount Shasta Comment
  HSC4884  Claytonia sibirica J. O. Sawyer 1968-7-2 377 Siskiyou Upper drainage of Joe Creek on steep N facing slopes. 1677 Comment
  HSC4885  Claytonia sibirica J. O. Sawyer 1968-6-18 243 Siskiyou Valley bottom of Blakes' Fork. 1707 Comment
  HSC577  Clintonia uniflora William J. Ferlatte 1966-6-22 85 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  JEPS80533  Clintonia uniflora Gilbert Muth 1966-7-17 401 Siskiyou Marble Mountain Wilderness Area, Trail to Lookout Marble Mountain Wilderness Area 1805 Comment
  RSA593952  Clintonia uniflora Louis C. Wheeler 1963-8-29 8305 Siskiyou Siskiyou Mountains. Head of west fork Clear Creek. 1432 Comment
  UCSB23568  Clintonia uniflora Keefe, Joseph 1967-7-11 Siskiyou Cook and Green Pass, north of Seiad Valley 1341 Comment
  POM109340  Clintonia uniflora Geo D. Butler 1910-6-5 1478 Siskiyou Shackleford Creek Comment
  RSA78293  Clintonia uniflora Philip A. Munz 1952-7-1 17861 Siskiyou Baldy Mtn road, NW of Happy Camp, Siskiyou Mts. 1220 Comment
  SEINET4899737  Clintonia uniflora Jack Seely 1991-1 s.n. Siskiyou Klamath National Forest, Comment
  UC142134  Clintonia uniflora Mrs. Legge Aug. 1900 Siskiyou Warm Castle Comment
  CAS-BOT-BC238060  Collinsia Alice Eastwood 1921-7-28 10878 Siskiyou Medicine Lake Comment
  HSC44485  Collinsia greenei K. Irwin 1977-5-22 389 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  CAS-BOT-BC94402  Collinsia linearis R. C. Wenk 2005-7-15 199 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail 1645 Comment
  UC1409408  Collinsia linearis Frederick W. Oettinger 1968-9-9 794 Siskiyou ne of Tom's Lake (High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness Area, Salmon Mountains, western Siskiyou County); High Lake Basins, Marble Mtn Wilderness Area, Salmon Mts 1828 Comment
  HSC68497  Collinsia parviflora Maralyn A. Renner 1980-6-22 887 Siskiyou Slopes N of Little Shasta River 1372 Comment
  SJSU6055  Collinsia parviflora R. W. Trivelpiece 1971-6-16 37 Siskiyou N of Alder Cr divide between Whaleback & Haight Mt c. 15 mi N of Mt Shasta 1676 Comment
  JEPS84181  Collinsia rattanii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6295 Siskiyou Indian Creek Road from Takilma to Happy Camp (just s of state line) 1420 Comment
  UC164319  Collinsia rattanii Geo. D. Butler 1909-4-14 651 Siskiyou Humbug Road Comment
  HSC91175  Collinsia rattanii Jennifer Whipple 1978-7-20 2354 Siskiyou E and S facing slopes draining into the N fork of the Sacramento River 2378 Comment
  JEPS6163  Collinsia rattanii W. L. Jepson 1937-7-30 18540 Siskiyou near Poker Flat (summit of Siskiyou Mtns); Siskiyou Mtns. 1554 Comment
  JEPS3897  Collinsia sparsiflora var. collina George D. Butler 1909-4-4 574 Siskiyou e of Yreka; Shasta Valley Comment
  RSA412243  Collinsia torreyi M. B. Dunkle 1944-7-7 9076 Siskiyou Siskiyou Nat'l Forest. 152 Comment
  CHSC71490  Collomia grandiflora Vernon H. Oswald; Lowell Ahart 1998-7-21 9317 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
  HSC78395  Collomia grandiflora L. P. Janeway 1983-9-23 690 Siskiyou At Poker Flat 1524 Comment
  JEPS100721  Collomia larsenii Dean W. Taylor 1987-6-26 9070 Siskiyou Little Mount Hoffman, 2 miles West from Medicine Lake 2209 Comment
  HSC23557  Collomia tinctoria J. O. Sawyer 1969-9-12 2007 Siskiyou Hanging valley N of Wildcat Peak 2012 Comment
  UC639095  Collomia tinctoria W. Bridge Cooke 1939-8-10 13852 Siskiyou on bottom of creek just below opening of canyon; Mount Shasta, Mud Creek 1676 Comment
  CDA40003  Collomia tinctoria T. R. Haig & F. D. Horn 1979-8-16 s.n. Siskiyou Gumboot Lake Area, west of Mount Shasta. 0 Comment
  HSC44488  Collomia tracyi K. Irwin 1977-5-22 385 Siskiyou On South Fork Salmon River Rd., 4 mi. E of Cecilville Comment
  RSA120685  Collomia tracyi S. Tillett 1956-7-9 636 Siskiyou E-facing slope of Scott Mountain, 8 miles SE of Callahan; Siskiyou-Trinity Co. line 2073 Comment
  CAS-BOT-BC180423  Comandra umbellata subsp. californica Wm. F. Herrin 1920-5-1 s.n. Siskiyou Shasta Springs Comment
  RSA273385  Conyza canadensis J. P. Smith, J. O. Sawyer 1972-9-14 5806 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  HSC23624  Corallorhiza maculata J. O. Sawyer 1970-7-3 2314 Siskiyou Plot 321 1402 Comment
  HSC29151  Corallorhiza maculata Frederick W. Oettinger 1969-7-28 1090 Siskiyou Salmon Mountains, High Lake Basins, NNE of Pine Lake 2073 Comment
  RSA150582  Corallorhiza mertensiana Lee W. Lenz 1961-6-23 24364 Siskiyou On the Oregon slope of the Siskiyou Mts., road between Happy Camp and OBrien 1220 Comment
  JEPS70113  Cordylanthus tenuis subsp. pallescens L. R. Heckard 1972-8-4 3150 Siskiyou ca. 4 mi nw Mt. shasta City (s of Black Butte, 0.1 mi from road parallelling old US Hwy 99, along Pony Trail Dr, near Shasta Abbey (Zen Mission)) 1188 Comment
  CHSC110358  Cordylanthus tenuis subsp. viscidus Barbara L. Wilson; Richard E. Brainerd 2010-8-5 16220 Siskiyou Dunsmuir; Panorama Drive north of Interstate Highway 5. 774 Comment
  CHSC28795  Cordylanthus tenuis subsp. viscidus J. D. Jokerst 1978-9-2 152 Siskiyou Area several miles w of Weed. Comment
  CHSC52839  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi; C. L. Custer, G. T. Robbins 1954-8-12 4790 Siskiyou 5.1. miles below (and S.E. of) summit of the road between Takilma, Ore. and Happy Camp, Calif.-Klamath National Forest, Siskiyou Mountains. 914 Comment
  POM250769  Cordylanthus tenuis subsp. viscidus D. D. Keck 1938-8-8 4863 Siskiyou Scott Mtns., ridge between Mill and Mule Creeks, 3 mi. S.E. of Scott mt. Lodge. 1340 Comment
  UC964790  Cordylanthus tenuis subsp. viscidus Herbert L. Mason 1950-7-16 14064 Siskiyou 5 mi s summit of road from Happy Camp CA to Waldo OR Comment
  CAS-BOT-BC212273  Cornus glabrata Doris K. Kildale; J. W. Gillespie 1929-6-25 8357 Siskiyou Klamath River, 6 miles north of Hornbrook 609 Comment
  CAS-BOT-BC212277  Cornus glabrata A. M. Vollmer; L. Beane 1951-6-2 45 Siskiyou Klamath River Highway, between U.S. 99 & Gottville Comment
  UC165401  Cornus glabrata Geo. D. Butler 1910-5-22 1385 Siskiyou Yreka Creek Comment
  CAS-BOT-BC212060  Cornus nuttallii Alice Eastwood 1912-7-24 1385 Siskiyou Castella Comment
  HSC33970  Cornus nuttallii J. P. Smith 1974-5-25 7434 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  SEINET6976042  Cornus nuttallii Unknown 1986-9-13 2155 Siskiyou Near the Marble Mountain Wilderness; along Canyon Creek Trail above Canyon Creek. Comment
  CAS-BOT-BC210423  Cornus sericea Gilbert Muth 1966-7-24 444 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC100198  Cornus sericea J. P. Smith, & J. O. Sawyer 2011-9-6 13423 Siskiyou Along East Moffett Creek Road 983 Comment
  HSC19034  Cornus sericea subsp. sericea J. O. Sawyer 1969-8-4 1928 Siskiyou Headwaters of S Sugar Creek. 2043 Comment
  UCD105669  Coronilla varia T. C. Fuller; G. D. Barbe 1972-6-13 943 Siskiyou Siskiyou Avenue exit from I 5 north of Dunsmuir; driveway to Dunsmuir Elementary School. Comment
  CDA4452  Crepis monticola Unknown May 1942 s.n. Siskiyou 0 Comment
  POM230913  Crepis monticola E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1936 Siskiyou Grassy old river terrace with small scattered oaks about 8 miles south of Yreka 823 Comment
  CDA4449  Crepis occidentalis T. C. Fuller 1958-6-19 1892 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  CAS-BOT-BC290839  Crepis occidentalis subsp. pumila J. Grisham 1958-5-14 399 -58 Siskiyou Yreka Comment
  UC195184  Crepis pleurocarpa Annie M. Alexander and Louise Kellogg 1911-8-12 310 Siskiyou near Toad L. Comment
  UC166183  Crocidium multicaule Geo. D. Butler 1910-3-11 1122 Siskiyou Yreka Hills Comment
  UC133676  Cryptantha affinis A. A. Heller 1905-6-5 7962 Siskiyou near Shasta Springs Comment
  JEPS107419  Cryptantha flaccida Lowell Ahart, John Dittes 2005-6-9 12022 Siskiyou Pasture field, on the east side of a poor rock fence, about 350 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  UC1199974  Cryptantha intermedia Roy L. Taylor 1960-6-12 4446 Siskiyou 1 mi w jct. of Hwy. 96 (Klamath River Road) and Hwy. 99 (n of Yreka, above Klamath River) Comment
  JEPS101588  Cryptantha milobakeri Dean W. Taylor 1999-6-9 17235 Siskiyou Agate Flat, 0.3 mi S of Oregon Sate Line 1005 Comment
  UC78652  Cryptantha rostellata Thomas Howell May 1889 Siskiyou Hornbrook Comment
  JEPS57184  Cryptantha sobolifera L. R. Heckard 1967-8-13 1690 Siskiyou s.-facing slope near summit Mt. Eddy 2712 Comment
  CAS-BOT-BC70484  Cryptogramma acrostichoides John Thomas Howell 1937-7-26 13525 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC69121  Cryptogramma acrostichoides Maralyn A. Renner 1980-8-7 2387 Siskiyou Klamath National Forest, NW flank of Preston Peak, near summit 2180 Comment
  RSA331956  Cryptogramma acrostichoides W. Wisura, Dave Kelly 1895-7-31 4080 Siskiyou Near Kangaroo Lake, Scotts Mtns, on granite rocks near campground. Comment
  CAS-BOT-BC70531  Cryptogramma cascadensis Geo. B. Grant 1902-9-1 5098 Siskiyou Horse Camp, Mt. Shasta 2438 Comment
  CAS-BOT-BC80534  Cupressus bakeri Frank Callahan; John Erwin 1998-8-8 s.n. Siskiyou Goosenest Mtn., south of Ball Mtn./Little Shasta Rd. (uphill south of Historical Smiths Sawmill) 1676 Comment
  CAS-BOT-BC80557  Cupressus bakeri C. O. Stone 1964-6-20 290 Siskiyou unspecified 1085 Comment
  CAS-BOT-BC80551  Cupressus bakeri Oliver V. Matthews July 22 40 Siskiyou From north side of Lava Road to Timbered Crater 1219 Comment
  RSA792359  Cuscuta campestris Rob Wilson 2010-9-8 s.n. Siskiyou Near Tule Lake. Growing in potato field. Comment
  RSA666423  Cuscuta occidentalis Barbara Ertter 1987-7-26 7326 Siskiyou 2.2 mi N of Scott Mt. summit on Hwy 3, at road junction.Half way down Old Priest Grade between Big Oak Flat and junction of Highways 120 and 49, ca. 35 airmiles E of Modesto. 1372 Comment
  RSA70993  Cuscuta suksdorfii var. subpedicellata L. C. Wheeler 1934-7-31 3011 Siskiyou 1 mi. E Dry Lake Lookout. 1829 Comment
  HSC22481  Cynoglossum occidentale J. O. Sawyer 1969-8-3 1790 Siskiyou Alluvial terrace along Duck Lake Creek 1921 Comment
  CAS-BOT-BC114688  Cyperus bipartitus Louis C. Wheeler 1934-8-31 3229 Siskiyou W. Fork Beaver Dreek. 1066 Comment
  CAS-BOT-BC114146  Cyperus squarrosus Alice Eastwood 1921-7-25 10848 Siskiyou Bigelows, McCloud River. Comment
  JEPS93885  Cyperus squarrosus Vernon H. Oswald and Lowell Ahart 1998-7-21 9338 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
  HSC58994  Cypripedium californicum G. L. Clifton 1975-7-28 5360 Siskiyou Near Elk Meadow, close to the town of Seiad Valley 1634 Comment
  UC54208  Cypripedium californicum H. M. Hall and E. B. Babcock June, 1903 4043 Siskiyou 18th crossing Sacramento River (near Sisson); Mount Shasta Comment
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Apr 14 2016
  RSA383004  Cypripedium fasciculatum Robert Kessler 1920-1 s.n. Siskiyou Siskiyou Comment
  HSC19007  Cystopteris fragilis J. O. Sawyer 1969-7-16 1117 Siskiyou NE facing slope above Siphon Lake 2226 Comment
  SEINET10515546  Dactylis glomerata Louis C. Wheeler 1935-6-30 Wheeler 3626 Siskiyou Dry roadside ditch. 3 miles S Yreka. Comment
  HSC73276  Danthonia californica Gail Newton 1980-6-20 473 Siskiyou Near Bald Mtn. 1097 Comment
  JEPS72971  Danthonia californica W. L. Jepson 1940-7-3 20121 Siskiyou 5 mi se Bartle; Big Bear Flat 1219 Comment
  UCD60991  Danthonia californica R. Tofsrud 1948-8-3 Siskiyou Poker Flat, near Del Norte Co. border. Comment
  SEINET10914313  Darlingtonia californica Andrew Townesmith, Karen M. Meyer 2007-8-1 Townesmith 888 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). T41N R6W near sections 28 and 33. 1983 Comment
  CHSC63417  Dasiphora fruticosa Vernon H. Oswald; Lowell Ahart 1994-7-11 6402 Siskiyou Gumboot Creek on the upstream side of Forest Rd. 26 (to Mt. Shasta), ca. 0.5 mi NE of Gumboot Lake, W of Dunsmuir. 1783 Comment
  RSA15800  Datura stramonium Carl B. Wolf 1927-8-26 1051 Siskiyou Klamath River. 3 miles below Gottenville P.O. Comment
  HSC43141  Daucus carota K. T. Stillman 1976-8-24 418 Siskiyou Slopes on E and N sides of Williams Point 366 Comment
  RSA17735  Delphinium andersonii Elmer I. Applegate 1935-6-6 9354 Siskiyou N base of Caldwell Butte, Lava Beds National Monument Comment
  CAS-BOT-BC9050  Delphinium decorum subsp. tracyi Philip Alexander Munz 1952-7-2 17901 Siskiyou Baldy Mountain ca. 6 air-line miles west of Happy Camp, Siskiyou Mountains 1737 Comment
  JEPS80529  Delphinium decorum subsp. tracyi Gilbert Muth 1966-7-17 407 Siskiyou Trail to Lookout, Marble Mt. Wilderness Area 1859 Comment
  JEPS23312  Delphinium glaucum Geo. D. Butler 1908-6-1 353 Siskiyou Whiskey Camp Marble Mountains, Independence Creek (w slope of mts) 1676 Comment
  CAS-BOT-BC8760  Delphinium glaucum K. T. Stillman 1976-7-29 309 Siskiyou Marble Mountain Wilderness Area, Bear Creek Trail 1584 Comment
  CAS-BOT-BC9885  Delphinium nudicaule J. H. Thomas 1954-5-14 4172 Siskiyou Salmon Mountains, Klamath N.F. Near South Fork of Salmon River, 5 to 9 mi. SE of Cecilville. 1219 Comment
  JEPS23356  Delphinium nudicaule Geo. D. Butler 1909-4-18 599 Siskiyou w Yreka; Humbug Divide Comment
  CAS-BOT-BC116162  Delphinium nuttallianum D. E. Breedlove 1962-6-11 3362 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range. 1127 Comment
  HSC686  Delphinium nuttallianum William J. Ferlatte 1966-7-7 201 Siskiyou Caribou Basin 1982 Comment
  JEPS81630  Delphinium nuttallianum Roger Raiche 1982-7-3 20527 Siskiyou Deadfall Meadows Mt. Eddy 1950 Comment
  SBBG30506  Delphinium nuttallianum D. Myrick 1968-6-24 2000 Siskiyou Mountain Meadow Ranch, Big Flat; Coffee Crk 1524 Comment
  RSA790244  Delphinium nuttallianum Rebecca Wenk 2005-7-19 347 Siskiyou Border between Siskiyou and Trinity Counties, National Forest Road 17, parking lot where Pacific Crest Trail crosses road at top of pass. 2091 Comment
  UC642522  Deschampsia atropurpurea Jason Swallen 1939-8-24 13892 Siskiyou middle cascade portion Squaw Valley Creek; Mt. Shasta, Squaw Valley Creek Comment
  CAS-BOT-BC192465  Deschampsia cespitosa subsp. cespitosa L. P. Janeway 1983-8-26 601 Siskiyou Siskiyou Mountains; at Poker Flat 1524 Comment
  CAS-BOT-BC192468  Deschampsia cespitosa subsp. cespitosa Doris K. Kildale 1929-7-20 8703 Siskiyou Raspberry Lake, South Fork of Indian Creek 1828 Comment
  CAS-BOT-BC201637  Deschampsia danthonioides A. A. Heller 1915-7-18 12120 Siskiyou Metcalf's ranch, base of Mt. Eddy Comment
  RSA184788  Deschampsia danthonioides Gilbert Muth 1966-7-19 430 Siskiyou Marble Gap Trail, along first bluff, Marble Mountains. 1829 Comment
  UCD62522  Deschampsia danthonioides P. B. Kennedy 1923-7-29 Siskiyou Sisson. Comment
  SEINET10834708  Deschampsia danthonioides A. Arthur Heller 1915-7-18 Heller 12120 Siskiyou Metcalf's ranch, base of Mt. Eddy. Douglas fir has replaces Jeffrey pine. Comment
  CAS-BOT-BC201931  Deschampsia elongata Copeland 1903-9-7 3793 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC201936  Deschampsia elongata Doris K. Kildale 1928-8-20 6595 Siskiyou Lily Pad Lake, near Hancock Lookout on trail to Marble Mt. Comment
  CHSC61566  Deschampsia elongata L. P. Janeway 1983-8-28 627 Siskiyou Siskiyou Mountains; at Poker Flat, a meadow. Northwest edge of the meadow, on the upper side of the road. 1524 Comment
  HSC91415  Deschampsia elongata Jennifer Whipple 1977-7-21 2020 Siskiyou Near Durney Lake 2073 Comment
  HSC92277  Deschampsia elongata Jennifer Whipple 1976-7-2 1259 Siskiyou SW of Dobkins Lake, along the drainage to the lake. 2134 Comment
  SEINET7063125  Descurainia incisa subsp. filipes A. G. Vestal 1963-6-1 s.n. Siskiyou North of Big Springs [Mayten] on the Mayten Road. UTM Zone 10, 549674mE, 4605677mN. (WGS84/NAD83). 224 Comment
  CHSC48327  Descurainia sophia Vernon Oswald 1986-5-29 2067 Siskiyou Lower Klamath National Wildlife Refuge, on the tour route ca. 1.5 mi s of Hwy 161. On levees. 1245 Comment
  UCD114786  Descurainia sophia A. A. Heller 1916-7-20 12463 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy in openings in the forest. 1188 Comment
  HSC67584  Dicentra formosa J. P. Smith 1973-5-5 6410 Siskiyou Along Cook and Green Pass Rd. Comment
  CAS-BOT-BC402476  Dicentra formosa subsp. formosa L. E. Smith 1912-7-1 s.n. Siskiyou Between Castella & Dunsmuir railroad track Comment
  HSC103843  Dicentra formosa subsp. oregana G. Fred Hrusa 2001-6-6 15854 Siskiyou Near summit of pass between Happy Camp, CA and O'Brien, OR at turnoff to Bolan Lake at Oregon border 1425 Comment
  JEPS82679  Dicentra pauciflora Wayne Roderick 1984-6-5 Siskiyou ca 12 air km sw Mt. Shasta City (above Castle Lake, on up and clear down to the lake) 1981 Comment
  HSC91287  Dicentra uniflora Jennifer Whipple 1976-6-17 1014 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC164474  Dichelostemma capitatum Geo. D. Butler 1910-4-17 1192 Siskiyou near Yreka Comment
  SEINET8475420  Dichelostemma capitatum subsp. capitatum G. D. Butler 1910-4-17 1192 Siskiyou Near Yreka. Comment
  CAS-BOT-BC500999  Dichelostemma multiflorum A. A. Heller 1905-6-1 7942 Siskiyou Between Upper Soda Spring and Shasta Retreat Comment
  UC86845  Dieteria canescens var. shastensis M. K. Curran July 1887 Siskiyou Edgewood Comment
  CAS-BOT-BC291025  Dieteria canescens var. shastensis John Thomas Howell 1937-7-29 13678 Siskiyou North slope of Scott Mts. 1676 Comment
  OBI55452  Dieteria canescens var. shastensis David J. Keil 1992-7-20 23509 Siskiyou Klamath Natl forest, SW of Fort Jones. Along forest rd 46N64, 8.2mi W of Scott river Rd Comment
  CAS-BOT-BC153651  Diplacus jepsonii Wm. Bridge Cooke 1938-7-15 11214 Siskiyou Above Bear Springs Comment
  CAS-BOT-BC153656  Diplacus jepsonii Gilbert Muth 1966-7-8 374 Siskiyou Marble Valley Meadow, Marble Mts. 1792 Comment
  CHSC66545  Diplacus nanus Vernon H. Oswald 1996-7-12 8005 Siskiyou Sand Flat on Mt. Shasta 1.5 mi N of Everitt Memorial Hwy. (A10). 2164 Comment
  HSC68034  Dipsacus fullonum J. P. Smith, Steve Selva 1970-7-17 4433 Siskiyou Tyler Gulch 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
  UC30076  Disporum hookeri Harley P. Chandler June, 1901 1553 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  CHSC1391  Dodecatheon alpinum V. Holt 1932-7-10 Siskiyou Mt. Eddy. 2590 Comment
  JEPS19731  Dodecatheon alpinum Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-26 5944 Siskiyou region just s Mt. Eddy (headwaters of the South Fork of the Sacramento River, southwestern end of Gumboot Lake, close to the Trinity County line); South Fork Sacramento River, Gumboot Lake, s of Mt. Eddy 1859 Comment
  RSA238737  Dodecatheon alpinum Frederick W. Oettinger 1969-7-10 965 Siskiyou Along inlet brook to Upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  HSC32293  Dodecatheon jeffreyi J. O. Sawyer 1971-6-29 2395 Siskiyou Elk Hole 1524 Comment
  UC1736286  Dodecatheon jeffreyi Dean W. Taylor 1972-7-3 1615 Siskiyou Salmon Mountains, near Little Duck Lake 1981 Comment
  JEPS100727  Downingia cuspidata Dean W. Taylor 1991-6-12 11897 Siskiyou Adobe Flat, ca. 4 miles N of Timbered Crater 1106 Comment
  SBBG25839  Downingia yina D. Myrick 1966-8-8 1475 Siskiyou Mountain Meadow Ranch, Big Flat Comment
  HSC75120  Downingia yina J. P. Smith, Thomas W. Nelson 1979-6-16 10140 Siskiyou Klamath National Forest, Hwy. 3, 2.4 mi. from Scott Mtn. summit. 1341 Comment
  HSC76919  Draba howellii K. T. Stillman 1976-6-26 131 Siskiyou Marble Mtn. Wilderness Area, top of ridge W of Kings Castle. 2073 Comment
  CAS-BOT-BC41308  Draba pterosperma C. L. Hitchcock; J. S. Martin 1939-7-9 5302 Siskiyou North side of Black Mountain near Marble Mountain (King's Castle). 2072 Comment
  POM259621  Draba pterosperma J. T. Howell 1939-8-8 s.n. Siskiyou Marble Mountains: Black Mountain Comment
  JEPS125885  Drosera rotundifolia Dean W. Taylor with Glenn L. Clifton 1996-7-27 15853 Siskiyou Shasta-Trinity National Forest; Lower Cliff Lake, The Eddys, about 15 air miles SW of Weed. Comment
  UC642568  Drymocallis W. Bridge Cooke 1939-8-22 13829 Siskiyou along Horse Camp Creek; Mount Shasta, along Horse Camp Creek Comment
  HSC61836  Drymocallis glandulosa Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  UC165749  Drymocallis glandulosa var. glandulosa Geo. D. Butler 1910-5-30 1431 Siskiyou Humbug Creek Comment
  CAS-BOT-BC159282  Drymocallis lactea var. lactea Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1889 Comment
  HSC69709  Drymocallis lactea var. lactea Maralyn A. Renner 1980-7-15 1776 Siskiyou English Lake inlet 1780 Comment
  HSC76877  Drymocallis lactea var. lactea K. T. Stillman 1976-8-8 400 Siskiyou Marble Mountain Wilderness Area. Trail to jump off to Paradise Lake. Comment
  CAS-BOT-BC158412  Drymocallis pseudorupestris var. saxicola Wm. Bridge Cooke 1939-8-22 13829 Siskiyou Along Horse Camp Creek 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
  UC609347  Drymocallis pseudorupestris var. saxicola Eleanor Burks Hart 1938-8-18 931 Siskiyou western slope of Boulder Peak 2529 Comment
  RSA693553  Dryopteris arguta M. B. Dunkle 1944-7-7 9079 Siskiyou Siskiyou National Forest Comment
  HSC45487  Dulichium arundinaceum Maralyn O'Meara 1973-6-5 196 Siskiyou 1.0 mi. up Duck Lakes Trail along a trail crossing stream Comment
  HSC65120  Dysphania botrys J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5725 Siskiyou Rd. 8, 3.5 mi. from junction with French Creek Rd. 915 Comment
  CAS-BOT-BC227917  Elymus elymoides John Thomas Howell 1939-8-6 15107 Siskiyou Elk Mt., Marble Mts. Comment
  RSA238987  Elymus elymoides Frederick W. Oettinger 1969-9-2 1583 Siskiyou Crapo Meadow near Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  RSA210772  Elymus elymoides Jim Henrickson, C. W. Tilforth 1969-9-3 39037 Siskiyou Margin of desiccated alkali flat along Hwy 161 on N side of Lower Klamath Lake, Lake Klamath National Wildlife Refuge, 1.9 mi. E of junction of Hwys 97 and 161l with Chenopodium rubrum, Atriplex argentea expansa. etc. Comment
  POM112865  Elymus elymoides subsp. hordeoides Geo D. Butler 1910-5-4 1278 Siskiyou Dry hill, Yreka. Comment
  HSC108  Elymus elymoides var. californicus William J. Ferlatte 1966-8-2 243 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  HSC58859  Elymus elymoides var. elymoides Marvin Butler 1971-7-28 218 Siskiyou Near Twin Lakes, close to the town of Cave Junction. 1585 Comment
  HSC36419  Elymus glaucus J. O. Sawyer 1968-7-10 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  HSC69006  Elymus glaucus Maralyn A. Renner 1980-7-24 2131 Siskiyou Pacific Crest Trail, 0.25 mi. SW of Cook and Green Pass. 1494 Comment
  LA14810  Elymus glaucus Louis C. Wheeler; 1934-4-14 3143 Siskiyou Siskiyou Mountains, E end White Mt 1767 Comment
  POM2058603  Elymus glaucus Copeland 1903-9-6 3802 Siskiyou Mt. Eddy Comment
  UC618640  Elymus glaucus W. Bridge Cooke 1938-7-15 11176 Siskiyou Bear Springs Mount Shasta (near spring creeks) Comment
  CAS-BOT-BC206592  Elymus glaucus subsp. glaucus John Thomas Howell 1939-8-2 14938 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC206599  Elymus glaucus subsp. glaucus Wm. Bridge Cooke 1938-8-19 11527 Siskiyou Lower Bear Spring, Mount Shasta 1524 Comment
  CHSC61570  Elymus glaucus subsp. glaucus L. P. Janeway 1983-8-26 610 Siskiyou Siskiyou Mountains; at Poker Flat. On upper side of road on the north side of the meadow. 1524 Comment
  JEPS73753  Elymus glaucus subsp. glaucus Geo. D. Butler 1909-6-13 834 Siskiyou Moffitt Creek Comment
  UCR142760  Elymus multisetus L. C. Wheeler 1934-10-21 3328 Siskiyou Shasta Valley, 4 miles east of Grenada 869 Comment
  HSC101396  Elymus spicatus J. P. Smith, J.0. Sawyer, R. J. Cole 2010-8-7 13052 Siskiyou Kalmath National Forest. Forest Service Road 40N24 to Crater Lake 1768 Comment
  UC203918  Elymus trachycaulus Geo. D. Butler 1909-6-27 847 Siskiyou roadside near Yreka Comment
  UCD35446  Elymus trachycaulus Beecher Crampton 1956-8-22 3867 Siskiyou South slope of Mt. Shasta. 1645 Comment
  CAS-BOT-BC204263  Elymus trachycaulus subsp. subsecundus David D. Keck 1949-7-20 6367 Siskiyou Meadow at Scott Mountain Summit, at Trinity County line 1633 Comment
  JEPS117634  Elymus trachycaulus subsp. trachycaulus Lowell Ahart, John Dittes 2010-7-30 16957 Siskiyou About 20 yards south of the Shasta River, about 50 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  JEPS107657  Elytrigia intermedia subsp. barbulata Lowell Ahart, John Dittes 2005-6-10 12121 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada 785 Comment
  RSA237399  Epilobium anagallidifolium Frederick W. Oettinger 1969-9-2 1595 -b Siskiyou On the cool north side of English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  HSC30616  Epilobium brachycarpum Frederick W. Oettinger 1969-8-12 1339 Siskiyou Along trail between Yellow Dog Creek and Abbott's Lower Cabin, Salmon Mtns. Comment
  POM46472  Epilobium brachycarpum Geo. D. Butler 1910-7-3 1629 Siskiyou Goosenest Foothills 1220 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
  POM32376  Epilobium ciliatum subsp. ciliatum Geo. D. Butler 1910-6-22 1598 Siskiyou Yreka Creek. Comment
  RSA8242  Epilobium ciliatum subsp. ciliatum Elmer I. Applegate 1923-8-21 3917 Siskiyou Willow Creek, south of Lower Klamath Lake Comment
  JEPS109702  Epilobium ciliatum subsp. glandulosum Dean W. Taylor 2002-7-20 18262 Siskiyou Forest Road 17 ca. 4.9 road miles (above) junction with Stewart Springs Road, Parks Creek 1737 Comment
  HSC96323  Epilobium glaberrimum subsp. fastigiatum Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 474 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  RSA237398  Epilobium glaberrimum subsp. glaberrimum Frederick W. Oettinger 1969-8-3 1150 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
  POM171593  Epilobium hallianum Doris K. Kildale 1929-7-20 8609 Siskiyou Southeast slope of Preston Peak 1951 Comment
  RSA237581  Epilobium hallianum Frederick W. Oettinger 1969-8-14 1381 -a Siskiyou Campsite, English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area 1738 Comment
  UCD80892  Epilobium hallianum Robert E. Preston 2001-7-21 1720 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, north slope of Rainbow Mountain. 2066 Comment
  HSC29141  Epilobium hornemannii subsp. hornemannii Frederick W. Oettinger 1968-8-10 463 Siskiyou Salmon Mtns., stream inlet into Hancock Lake 1890 Comment
  RSA237387  Epilobium lactiflorum Frederick W. Oettinger 1968-8-4 388 Siskiyou Trail N of Crapo Peak ridge. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2195 Comment
  HSC69700  Epilobium minutum Maralyn A. Renner 1980-6-26 1266 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  SEINET6644398 Image available Epilobium minutum A. A. Heller 1905-1 7930 Siskiyou Upper Soda Spring Comment
  CDA38114  Epilobium minutum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2649 Siskiyou Schoolhouse Hill, summit of Gazelle/Callahan Road, 11.3 km east of Callahan. Comment
  UC204402  Epilobium oreganum A. A. Heller 1914-8-25 11712 Siskiyou near Deetz station (opposite Black Butte) 1158 Comment
  RSA237393  Epilobium oregonense Frederick W. Oettinger 1968-9-7 758 Siskiyou Near Tobacco Lake. The Salmon Mountains, the High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area 1890 Comment
  CAS-BOT-BC171863  Epilobium septentrionale John Thomas Howell 1937-7-29 13639 Siskiyou Scott Mt. between Trinity and Siskiyou counties Comment
  SBBG25828  Equisetum arvense D. Myrick 1966-8-11 1539 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  RSA591595  Eragrostis cilianensis L. C. Wheeler 1934-10-24 3346 Siskiyou Oak Knoll Ranger Station, Klamath River; Siskiyou Mts. 671 Comment
  CAS-BOT-BC204626  Eragrostis mexicana subsp. virescens R. E. Frenkel 1964-10-2 882 Siskiyou On Everitt Memorial Hwy., 1.0 mile north of McCloud River RR crossing, near Mount Shasta 1219 Comment
  CAS-BOT-BC204621  Eragrostis mexicana subsp. virescens Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Roger's [Rogers] Creek, Somes Bar Comment
  HSC59934  Eremogone congesta D. L. Goforth 1979-7-19 251 Siskiyou Trinity Alps Wild Area, Caribou Lakes Basin 2134 Comment
  SEINET3894740  Eriastrum signatum David Gowen 2007-7-11 776 Siskiyou South of the town of Lake Shastina. Along dirt road to dump/dirt storage area off of Big Springs Rd., and just north of Jackson Ranch Rd.; 0 Comment
  JEPS31333  Ericameria bloomeri Willis L. Jepson 1894-8-4 Siskiyou sw slope Mt. Shasta (Neil's Camp); Region of the Upper Sacramento, Mt. Shasta Comment
  SJSU3011  Ericameria bloomeri J. W. Tilden 1967-8-22 1770 Siskiyou proximity of Bartle, southeastern Siskiyou County Comment
  UC598531  Ericameria bloomeri C. Hart Merriam 1898-8-14 16 Siskiyou Mt. Shasta 1524 Comment
  CAS-BOT-BC287490  Ericameria greenei A. A. Heller 1914-8-28 11727 Siskiyou E side, Mt Eddy 1889 Comment
  CAS-BOT-BC287502  Ericameria greenei E. B. Copeland 1903-9-8 3868 Siskiyou Mt Eddy 1767 Comment
  HSC92185  Ericameria greenei Jennifer Whipple 1977-8-4 2165 Siskiyou Wagon Creek drainage on the E face of Mt. Eddy 2195 Comment
  UC830817  Ericameria greenei Alice Eastwood 1912-8-29 2040 Siskiyou Mount Eddy Comment
  UCR80264  Ericameria greenei L. C. Wheeler 1934-8-24 3220 Siskiyou Siskiyou Mtns, Trapper Creek. 1860 Comment
  HSC2236  Ericameria nauseosa Geo. D. Butler 1910-8-15 1839 Siskiyou Shasta Valley Comment
  JEPS117569  Ericameria nauseosa var. oreophila 2010-7-30 16970 Siskiyou Shasta Big Springs Ranch, 2.6 air miles northwest of Big Springs Lake, 3.9 air miles southeast of Grenada, 6.3 air miles northeast of Dwinnel Dam. 779 Comment
  UC637126  Ericameria nauseosa var. speciosa Edward Lee 1934-8-14 1099 Siskiyou near summit Little Grayback (Siskiyou-Del Norte County line) 1868 Comment
  UCD77546  Ericameria nauseosa var. speciosa Robert E. Preston 2001-8-26 1770 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 2103 Comment
  UC1303140  Ericameria parryi var. latior A. A. Heller 1927-8-1 14438 Siskiyou near the town Mt. Shasta (along the base of Spring Hill, on the headwater of the Scramento River); Sacramento River, Spring Hill Comment
  CAS-BOT-BC293505  Erigeron aliceae Doris K. Kildale 1928-8-20 6616 Siskiyou Hancock Lookout, on trail to Marble Mt., B.M. 2151 Comment
  CAS-BOT-BC293508  Erigeron aliceae Louis C. Wheeler 1934-7-3 2855 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1676 Comment
  RSA261543  Erigeron aliceae J. M. Tucker 1974-7-28 4323 Siskiyou Haypress Meadows, Marble Mtn Wilderness Area 1463 Comment
  UC163908  Erigeron aliceae Geo. D. Butler 1910-7-8 1653 Siskiyou Shackleford Creek 1371 Comment
  UCD131601  Erigeron aliceae R. Tofsrud; J. M. Tucker 1948-8-3 1782 Siskiyou Siskiyou-Del Norte (Oregon) County Line: Summit of Happy Camp, Waldo (Oregon) Road. 1554 Comment
  CAS-BOT-BC294497  Erigeron bloomeri var. bloomeri K. T. Stillman 1976-8-7 179 Siskiyou Marble Mountain Wilderness Area Comment
  POM35931  Erigeron bloomeri var. bloomeri Geo. D. Butler 1910-5-16 1350 Siskiyou Yreka. Comment
  HSC19165  Erigeron cervinus J. O. Sawyer 1969-7-10 1284 Siskiyou East facing slope above Sugar Lake 2226 Comment
  UC1190272  Erigeron cervinus Ira L. Wiggins 1955-7-27 13518 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  UC1409465  Erigeron cervinus F. W. Oettinger 1968-8-23 608 Siskiyou rock-crevices on Shasta Ridge, se of Diamond Lake; Salmon Mts., English Peak area, Red Fir Forest 2072 Comment
  CAS-BOT-BC300472  Erigeron filifolius Edwin B. Copeland 1903-9-8 s.n. Siskiyou Foot of Mt. Eddy 1219 Comment
  HSC68443  Erigeron foliosus var. confinis Maralyn A. Renner 1980-7-4 1386 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow 1585 Comment
  SBBG7643  Erigeron foliosus var. confinis H. and M. Dearing 1939-7-1 3785 Siskiyou Salmon Mtn 1828 Comment
  HSC76944  Erigeron glacialis var. glacialis K. T. Stillman 1976-9-9 471 Siskiyou Marble Mtn. Wilderness Area, N, NE and E side of Black Mtn. Comment
  OBI80251  Erigeron inornatus David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  HSC100277  Erigeron inornatus var. inornatus J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13075 Siskiyou Klamath National Forest, along road to botanical area off Forest Service Road 40N24 to Crater Lake. 1860 Comment
  UC163916  Erigeron inornatus var. inornatus Geo. D. Butler 1910-6-17 1570 Siskiyou Humbug <?> Mountain 1066 Comment
  JEPS24008  Erigeron inornatus var. inornatus Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6869 Siskiyou on road to Callahan,about 3 mi below (n of) Scott Mt. road summit 1219 Comment
  JEPS29179  Erigeron klamathensis Lauramay T. Dempster 1961-7-2 1855 Siskiyou ridge w Salmon Mountain Summit (sw of Etna) 1828 Comment
  HSC32257  Erigeron petrophilus var. viscidulus J. O. Sawyer 1970-7-6 2331 Siskiyou 1662 Comment
  CAS-BOT-BC300087  Erigeron philadelphicus A. Eastwood 1921-7-30 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC300094  Erigeron philadelphicus J. H. Thomas 1949-6-16 945 Siskiyou 1/4 mile north of Beaver Creek Public Camp, 5 miles north of junction of Beaver Creek and Klamath River. Klamath National Forest Comment
  UC163905  Erigeron pumilus var. intermedius Geo. D. Butler 1910-6-3 1471 Siskiyou Quartz Valley Comment
  CDA4640  Erigeron strigosus Don Shaw 1978-10-1 Siskiyou D.H. Shaw property, Montague. 0 Comment
  CAS-BOT-BC224134  Eriodictyon californicum L. R. Short 1933-5-30 121 Siskiyou Klamath National Forest 579 Comment
  SBBG15739  Eriodictyon lobbii D. Myrick 1961-6-22 319 Siskiyou Hwy 89 near McCloud 914 Comment
  UC904786  Eriogonum baileyi var. baileyi W. Bridge Cooke 1949-8-26 25650 Siskiyou along logging road above Bolam Station; Mount Shasta 1524 Comment
  CAS-BOT-BC248781  Eriogonum baileyi var. baileyi Wm. Bridge Cooke 1949-8-26 25650 Siskiyou Above Bolam Station, Mount Shasta Comment
  HSC74932  Eriogonum compositum J. P. Smith, Jennifer Whipple 1978-7-2 9973 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  HSC30509  Eriogonum compositum var. compositum Frederick W. Oettinger 1969-8-6 1254 Siskiyou Marble Mtns. Wilderness Area, New York Flumes between Pine Lake and Tom's Lake 1860 Comment
  SEINET4855037  Eriogonum diclinum Louis C. Wheeler 1934-9-1 75542 Siskiyou Klamath Forest, Jaynes Canyon. 1951 Comment
  CHSC71590  Eriogonum elatum var. elatum Vernon H. Oswald; Lowell Ahart 1998-8-3 9409 A Siskiyou USFS 41N03 1.0 mi east of its junction with Gazelle-Callahan Rd. 11.5 mi west of Gazelle. 1524 Comment
  CAS-BOT-BC255727  Eriogonum elatum var. elatum D. M. Traugh 1933-8-7 111 Siskiyou Klamath Forest 1981 Comment
  HSC58960  Eriogonum lobbii Gilbert Muth 1975-7-31 4439 Siskiyou Near Kangaroo Mtn., close to the town of Seiad Valley 1920 Comment
  CAS-BOT-BC94467  Eriogonum marifolium R. C. Wenk 2005-7-19 328 Siskiyou Along Pacific Crest Trail, near top of pass below Mt. Eddy 2438 Comment
  LA206883  Eriogonum marifolium W. B. C. after Stokes; 1939-8-8 13838 Siskiyou Mount Shasta, around Horse Camp 2438 Comment
  RSA393650  Eriogonum marifolium George B. Grant 1902-9-7 5091 Siskiyou Mt. Shasta 2439 Comment
  SD23786  Eriogonum marifolium Wm. Bridge Cooke 1938-8-18 11489 Siskiyou Mt. Shasta, lava slopes 2514 Comment
  UC1601649  Eriogonum marifolium Dr. E. B. Copeland 1903-8-15 3916 Siskiyou Mt. Shasta 2346 Comment
  HSC17301  Eriogonum microthecum var. laxiflorum R. C. Wunner 1965-8-21 457 Siskiyou Lava Beds National Monument, 1.5 mi. from NW ranger station along rd. at base of Gillem's Bluff 1250 Comment
  RSA601667  Eriogonum niveum Louis C. Wheeler 1935-6-27 3610 Siskiyou Greenview, Scott Valley. 884 Comment
  SBBG21291  Eriogonum nudum var. nudum D. Myrick 1964-7-25 954 Siskiyou Shasta Ski Bowl Hwy, Mt Shasta 1219 Comment
  SEINET7064409  Eriogonum nudum var. nudum A. G. Vestal 1955-5-17 s.n. Siskiyou Shasta Valley 2.1 miles north of Yreka. (NAD83/WGS84). UTM Zone 10, 531857mE, 4623863mN. Comment
  UC849640  Eriogonum nudum var. nudum A. A. Heller 1915-4-26 12246 Siskiyou Wagon Creek at foot of Mt. Eddy Mt. Eddy, Wagon Creek 1127 Comment
  CAS-BOT-BC269741  Eriogonum nudum var. oblongifolium Louis C. Wheeler 1935-6-29 3624 Siskiyou Yreka 807 Comment
  CAS-BOT-BC269746  Eriogonum nudum var. oblongifolium Geo. D. Butler 1908-7-28 212 Siskiyou Near Yreka Comment
  SBBG64165  Eriogonum nudum var. oblongifolium A. A. Heller 1927-8-2 14443 Siskiyou ca. 3 mi S of Yreka Comment
  UC1299709  Eriogonum nudum var. oblongifolium Freed W. Hoffman 1948-7-8 2491 Siskiyou 19.7 mi e Happy Camp (along Klamath River, on Waldo-Happy Camp Road); North Coast Ranges, Klamath River 548 Comment
  HSC67836  Eriogonum nudum var. pubiflorum J. O. Sawyer, J. Cole 1980-7-22 3921 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  SBBG1575  Eriogonum nudum var. pubiflorum H. and M. Dearing 1939-6-3 3538 Siskiyou near Scott Bar 609 Comment
  CAS-BOT-BC272465  Eriogonum nudum var. pubiflorum G. P. Rixford No date on label s.n. Siskiyou South side of Shaft Rock Mt., Hilt Comment
  CAS-BOT-BC272468  Eriogonum nudum var. pubiflorum A. A. Heller 1927-8-2 14443 Siskiyou About three miles south of Yreka Comment
  CHSC71312  Eriogonum ovalifolium var. purpureum Vernon H. Oswald 1998-6-27 9240 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
  JEPS81652  Eriogonum ovalifolium var. purpureum L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2307 Siskiyou along road to Hoffman Mill 1.2 mi from U.S. 97 ((about 3 mi ne of Little Deer-The Whaleback Quad.)) 1569 Comment
  CHSC102612  Eriogonum pyrolifolium L. P. Janeway 2009-8-3 9882 Siskiyou High Cascade Range. Mt. Shasta, east-northeast slope 2.3 air km southwest of Brewer Creek Trailhead; about 0.3 km south of southwest of Brewer Creek Trailhead; about 0.3 km south of Brewer Creek. 2560 Comment
  CAS-BOT-BC252962  Eriogonum pyrolifolium var. pyrolifolium R. H. Bohmannson 1926-7-1 s.n. Siskiyou Mt. Shasta Comment
  UCD100863  Eriogonum pyrolifolium var. pyrolifolium Jack Major 1961-7-14 650 Siskiyou ridge above Mud Creek, Mount Shasta. 2316 Comment
  UC637180  Eriogonum roseum Edward Lee 1934-8-11 1040 Siskiyou e mouth of Walker Creek (a tributary of the Klamath River) (e end of Seiad Valley); Seiad Valley 441 Comment
  RSA11906  Eriogonum roseum Elmer I. Applegate 1923-9-6 3942 Siskiyou Klamath River about 20 mi. below the mouth of Shasta River. Gravelly river bottom. Comment
  CAS-BOT-BC268584  Eriogonum siskiyouense Thomas W. Nelson; Jane P. Nelson 1980-7-21 6153 Siskiyou North Coast Ranges. Along Forest Serice road 40N08 ca. .6 miles from junction with State Route 3 1645 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
  JEPS56425  Eriogonum strictum var. proliferum W. L. Jepson 1940-6-23 19980 Siskiyou Yreka 822 Comment
  CAS-BOT-BC263445  Eriogonum ternatum Doris K. Kildale 1929-7-20 8621 Siskiyou South fork Indian Creek to Elk Lick 1524 Comment
  HSC62448  Eriogonum umbellatum Ruby Van Deventer 1938-7-31 Siskiyou Twin Valley Comment
  SEINET13710392  Eriogonum umbellatum Lowell William Ahart, Lowell William Ahart 1998-1 9320 Siskiyou Hwy. 97 at The 11 Mi. Marker 1.2 Mi. W of A12 NW of Weed (T43N, R4W, sec 35, NE 1/4) 3900 Ft. 1189 Comment
  CAS-BOT-BC267998  Eriogonum umbellatum var. argus Doris K. Kildale 1928-7-2 5359 Siskiyou Salmon Summit, via Horn Creek trail 1981 Comment
  CAS-BOT-BC267995  Eriogonum umbellatum var. argus Gordon H. True 1966-9-9 3293 Siskiyou 20 miles south east of Obrien on Happy Camp Road 1524 Comment
  SEINET10825698 Image available Eriogonum umbellatum var. argus James L. Reveal, Mark L. Reveal 1975-8-15 Reveal 3955 Siskiyou Siskiyou Co. Siskiyou Mountains, Klamath National Forest, along the Dry Lake Lookout Road (Forest Service Raod 40S01). 0.5 mile west of Dry Lake Lookout near the Buckthorn Trail, on sandy-gravel soil associated with Abies and Lupinus, in open places or near low shrubs. Sec. 19, T.47N., R.9W. 2042 Comment
  CHSC93534  Eriogonum umbellatum var. dumosum Lowell Ahart; John Dittes 2005-6-10 12085 Siskiyou Rocky hillside, about 150 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  UC6562  Eriogonum umbellatum var. dumosum C. B. Bradley 1897-1 Siskiyou Comment
  CHSC34257  Eriogonum umbellatum var. humistratum J. D. Jokerst; M. D. Huffine 1981-9-11 1502 Siskiyou Summit of rd 17 at the Siskiyou Trinity County line where it crosses the Pacific Crest Trail. North of the road. Comment
  HSC19518  Eriogonum umbellatum var. humistratum J. O. Sawyer 1969-7-25 1547 Siskiyou W of High Lake 2256 Comment
  JEPS84205  Eriogonum umbellatum var. modocense L. R. Heckard with J. Hickman et al. 1986-7-17 6504 Siskiyou e Condrey Mt. (slopes); Alex Hole 1880 Comment
  HSC17354  Eriogonum umbellatum var. modocense R. C. Wunner 1965-6-15 187 Siskiyou Lava Beds National Monument, in crater of Caldwell Butte on the NW side 1509 Comment
  SJSU6269  Eriogonum umbellatum var. nevadense R. W. Trivelpiece 1971-8-18 70 Siskiyou by Fourth of July Gulch, 2.5 mi N of Cecilville on S Fork Salmon R, Salmon River Mts 1371 Comment
  SD98969  Eriogonum umbellatum var. polyanthum D. F. Howe 1977-7-5 4997 Siskiyou 15 mi. SE Granada Comment
  SEINET10680303 Image available Eriogonum ursinum var. erubescens James L. Reveal, Julie D. Knorr 2002-8-5 Reveal 8371 Siskiyou Scott Bar Mountains, n and w slope and ridge of Deadwood Baldy Peak, Klamath National Forest, on metasedimentary (chert) soils associated with Ericameria nauseosa var. speciosa (and scattered Pseudotsuga menziesii). T.45N, R8W, secs 6 SE 1/4 of SW 1/4 and 7 NW1/4. 1675 Comment
  HSC30682  Eriophorum crinigerum Frederick W. Oettinger 1968-8-2 350 Siskiyou Marble Mtn. Wilderness Area, meadow that feeds into Diamond Lake 2073 Comment
  JEPS83994  Eriophorum crinigerum L. R. Heckard with J. Hickman et al. 1986-7-17 6467 Siskiyou s Lily Pad Lake (trail up peak, ca 5 mi n of town of Seiad Valley); Kangaroo Peak 2011 Comment
  OBI80237  Eriophyllum lanatum David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. 1700 Comment
  CAS-BOT-BC301098  Eriophyllum lanatum var. achilleoides J. H. Chastain 1917-6-1 s.n. Siskiyou Gazelle Comment
  UC134265  Eriophyllum lanatum var. achilleoides H. E. Brown Jun 1 1897-Jun 10 1897 336 Siskiyou near Sisson 1083 Comment
  UC163896  Eriophyllum lanatum var. achilleoides Geo. D. Butler 1908-4-30 688 Siskiyou dry hills near Yreka Comment
  UC507152  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-7-6 E 120 Siskiyou 5 mi s of Bray Comment
  UC896367  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-6-22 11438 Siskiyou n of Sisson (near Black Butte) 1097 Comment
  POM30094  Eriophyllum lanatum var. achilleoides Geo. D. Butler 1910-5-4 1279 Siskiyou Dry hill, Yreka. Comment
  SD88329  Eriophyllum lanatum var. achilleoides Darley F. Howe 1972-7-8 Siskiyou 16 miles north of Weed on Highway 97. Comment
  CAS-BOT-BC301450  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1937-7-3 37392 Siskiyou Black Butte, N. of Mt. Shasta City 1005 Comment
  CAS-BOT-BC301451  Eriophyllum lanatum var. grandiflorum W. B. Cooke; V. G. Cooke 1963-7-9 34219 Siskiyou Near McBride Springs, in dry Cascade Gulch. Mt. Shasta Comment
  JEPS107394  Eriophyllum lanatum var. grandiflorum Lowell Ahart, John Dittes 2005-6-10 12090 Siskiyou Rocky hillside, north of the rock fence, about 150 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  JEPS34745  Eriophyllum lanatum var. integrifolium Geo. D. Butler 1908-8-3 344 Siskiyou Log Lake Shackelford Creek, Log Lake 1524 Comment
  CAS-BOT-BC301720  Eriophyllum lanatum var. lanceolatum D. E. Breedlove 1962-6-10 3314 Siskiyou Along Indian Creek Road, 2.3 miles northwest of Happy Camp; Siskiyou Mountains 365 Comment
  HSC65397  Eriophyllum lanatum var. lanceolatum R. White 1977-7-7 112 Siskiyou Devil's Punchbowl, NE shore 1433 Comment
  UC609331  Eriophyllum lanatum var. lanceolatum Eleanor Burks Hart 1938-8-15 888 Siskiyou Upper Wright Lake; n side 2225 Comment
  UCD132196  Eriophyllum lanatum var. lanceolatum J. M. Tucker; L. K. Mann 1963-8-18 3763 Siskiyou On top of saddle, between Marble and southwest ridge of Black Mountain, Marble Mountain Wilderness Area. 2103 Comment
  CAS-BOT-BC301714  Eriophyllum lanatum var. lanceolatum Doris K. Kildale 1929-7-20 8711 Siskiyou Trail from Elk Lick to Raspberry Lake, upper South Fork of Indian Creek 1828 Comment
  POM358042  Eriophyllum lanatum var. lanceolatum B. C. Templeton 1960-6-21 s.n. Siskiyou Near the summit of Scott Mts., SE of Callahan Comment
  CHSC91383  Erodium cicutarium Lowell Ahart; John Dittes 2005-6-10 12058 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  UC1565573  Eryngium mathiasiae Beth Corbin 1989-8-28 547 Siskiyou ca. 15 air mi. n. Fall River Mills (ca. 1/4 mi. n.-n.w. of Adobe Flat Reservoir) 1097 Comment
  POM95435  Erysimum capitatum Geo. D. Butler 1910-5-4 1273 Siskiyou Dry hill near Yreka Comment
  CAS-BOT-BC55119  Erysimum perenne C. L. Hitchcock; J. S. Martin 1939-7-9 5313 Siskiyou Between King's Castle and Black Mountain. Northwest side of bridge. 1828 Comment
  HSC19560  Erysimum perenne J. O. Sawyer 1969-7-24 1472 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  HSC65343  Erysimum perenne Rich White 1978-7-20 264 Siskiyou Ridge top E of Raspberry Lake 1768 Comment
  UC618779  Erysimum perenne W. Bridge Cooke 1938-8-24 11583 Siskiyou North Gate Mount Shasta (in an old burn) Comment
  SBBG122973  Erythranthe linearifolia B. Ertter, J. Kierstead, J. Nelson 1990-7-15 9354 Siskiyou Morgan Meadows, E side of Mt Eddy; ca. 5 mi W of Mt Shasta City 1676 Comment
  CAS-BOT-BC505227  Erythronium grandiflorum Philip A. Munz 1952-7-2 17890 Siskiyou Road to Baldy Mt. northwest of Happy Camp 1524 Comment
  HSC61796  Erythronium grandiflorum subsp. grandiflorum Ruby Van Deventer Jun 1961 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC133299  Erythronium hendersonii Mrs. A. E. Stonehouse 1917-4-25 s.n. Siskiyou Hilt Comment
  JEPS50874  Erythronium klamathense Wayne Roderick 1963-6-10 Siskiyou along trail from Castle Lake to Little Castle Lake 1828 Comment
  JEPS82706  Erythronium klamathense Wayne Roderick 1984-6-5 Siskiyou ca 12 air km sw Mt. Shasta city (above Castle Lake) 1981 Comment
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Mar 5 2007
  HSC67576  Eschscholzia californica J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5726 Siskiyou Rd. 8, 3.5 mi. from junction with French Creek Rd. 915 Comment
  POM125700  Eschscholzia californica var. crocea Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka. Comment
  JEPS81781  Eucephalus glabratus Rimo Bacigalupi with Reino and Aloha Alava 1958-9-3 6892 Siskiyou upper edges Poker Flat (very close to the ne portion of Del Norte Co.); Siskiyou Mountains, upper edges of Poker Flat 1536 Comment
  CAS-BOT-BC202765  Euonymus occidentalis Dorothy Parker 1951-7-15 s.n. Siskiyou Along banks of Etna Creek 883 Comment
  RSA47787  Euphorbia crenulata Roxana S. Ferris, Laura Lorraine 1948-6-12 11849 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1418 Comment
  HSC41525  Euphorbia marginata Linda M. Barker 1976-9-6 1698 Siskiyou Scott Valley, in flood plain near the dredge. 945 Comment
  JEPS31913  Eurybia radulina Geo. D. Butler 1908-7-22 293 Siskiyou roadside w of Forest House Mountain Comment
  CAS-BOT-BC413904  Fallopia convolvulus L. E. Smith 1915-7-1 s.n. Siskiyou Sisson Comment
  CAS-BOT-BC418830  Fallopia japonica var. japonica T. C. Fuller 1968-8-1 17452 Siskiyou Corner of Siskiyou Ave. & Interstate 5 freeway Comment
  HSC25420  Festuca idahoensis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5664 Siskiyou Ridge E of Cook and Green Pass 1524 Comment
  HSC13  Festuca occidentalis William J. Ferlatte 1966-6-22 108 Siskiyou 3 mi. S of Big Flat 1585 Comment
  HSC42967  Festuca occidentalis J. O. Sawyer, K. T. Stillman 1976-5-29 2750 Siskiyou Along Specimen Creek. 1433 Comment
  HSC75129  Festuca pratensis J. P. Smith, Thomas W. Nelson 1979-6-16 10148 Siskiyou Klamath National Forest. State Route 3, 1 mi. from Scott Mtn. Summit. 1341 Comment
  UCD66265  Festuca roemeri R. Tofsrud 1949-8-3 Siskiyou Soap Creek Ridge, between Yreka and Fort Jones. Comment
  CAS-BOT-BC279069  Festuca rubra Peter H. Raven 1956-9-4 10400 Siskiyou South side of Mt. Eddy 2560 Comment
  UC1265442  Festuca subulata Frederick W. Oettinger 1969-9-4 1629 Siskiyou e side Hancock Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  CAS-BOT-BC453506  Fragaria Wm. Bridge Cooke 1939-6-23 13542 Siskiyou Lower end of the upper Wagon Camp meadow; Mount Shasta Comment
  RSA211179  Fragaria californica William J. Ferlatte 1966-6-22 110 Siskiyou Wooded area 3 miles S of Big Flat. 1585 Comment
  HSC92  Fragaria vesca William J. Ferlatte 1967-6-5 487 Siskiyou Big Flat, near public camp 1524 Comment
  SEINET8274264  Fragaria vesca W. Bridge Cooke 1938-6-24 11079 Siskiyou McBride Springs. 1524 Comment
  CAS-BOT-BC437075  Fragaria vesca subsp. bracteata Alice Eastwood 1922-10-18 11517 Siskiyou Shasta Springs Comment
  UC61650  Fragaria virginiana subsp. platypetala Geo. B. Grant Sep 1902 5196 Siskiyou Sisson; Mount Shasta 914 Comment
  HSC26240  Frangula californica J. P. Smith, J. O. Sawyer 1972-9-13 5791 Siskiyou 2 mi. W of Cook and Green Pass on the road to Lily Pad Lake Comment
  UCD112752  Frangula californica subsp. occidentalis K. M. Meyer; A. Townesmith 2007-7-31 176 Siskiyou Shasta-Trinity National Forest. 6.2 on NF Road 17, off U.S. Hwy 97. 1350 Comment
  CAS-BOT-BC60011  Frangula purshiana Lewis S. Rose 1925-7-25 s.n. Siskiyou Shasta Springs. Comment
  CAS-BOT-BC60017  Frangula purshiana Doris K. Kildale 1928-8-18 6423 Siskiyou N. Fork Salmon River at Finley Camp. Comment
  CAS-BOT-BC60025  Frangula purshiana John Thomas Howell 1937-7-26 13541 Siskiyou Caribou Gulch. Comment
  HSC100193  Frangula purshiana J. P. Smith, & J. O. Sawyer 2011-9-5 13416 Siskiyou Along Yreka-Walker Road (County Road 7J001). 953 Comment
  SEINET8584501  Frasera albicaulis var. nitida G. D. Butler 1910-6-2 1451 Siskiyou Dry land near Yreka. Comment
  CAS-BOT-BC502843  Fritillaria atropurpurea Harley P. Chandler 1901-6-1 1592 Siskiyou Ridges and meadows near Marble Mountain 1981 Comment
  CAS-BOT-BC502847  Fritillaria atropurpurea Wm. Bridge Cooke 1938-7-1 11155 Siskiyou Mount Shasta below Wagon Camp 1706 Comment
  RSA184804  Fritillaria atropurpurea Gilbert Muth 1966-7-8 356 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  UC705736  Fritillaria atropurpurea Marion Ownbey, D. H. Brown 1941-6-25 2433 Siskiyou near Donomore Meadow (e end of Siskiyou Mountains, near the Oregon Line); Siskiyou Mountains Comment
  POM109778  Fritillaria recurva Geo D. Butler 1910-4-17 1191 Siskiyou Near Yreka. Comment
  SEINET3886824  Fritillaria recurva James P. Smith 1974-5-26 7542 Siskiyou Copco Quad. Along Forest Service Road 47N04.; 0 1524 Comment
  UCD121552  Galium ambiguum G. L. Stebbins Jr.; A. A. Beetle 1942-6-1 3270 Siskiyou 15 miles north of Happy Camp, above Indian Creek. 1219 Comment
  UC618908  Galium bifolium W. Bridge Cooke 1938-7-1 11146 Siskiyou below Wagon Camp (near creeks); Mount Shasta Comment
  SEINET10500692  Galium bifolium Mary Susan Taylor 1980-7-8 Taylor 3107 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
  JEPS6706  Galium bolanderi W. L. Jepson July 1894 Siskiyou near Sisson; Muir Peak (= Black Butte) Comment
  UC164076  Galium bolanderi Geo. D. Butler 1909-7-15 946 Siskiyou Highland Mine Comment
  POM258014  Galium bolanderi C. Leo Hitchcock, J. S. Martin 1939-7-7 5298 Siskiyou Ca 15 miles N of Happy Camp on Happy Camp-Takilma Hwy. 915 Comment
  UCD121617  Galium boreale P. B. Schultz 1967-7-12 83 Siskiyou 8 miles north of Siskiyou-Shasta county line on State Highway 89. 1219 Comment
  JEPS87641  Galium boreale subsp. septentrionale Vernon H. Oswald and Lowell Ahart 1994-8-10 6459 Siskiyou FS 40N39 ca. 0.5 mi w Harris Spring Rd. (FS15) (ca 4 air mi nne of Bartle); Bartle Creek, Stillwater Meadows 1359 Comment
  UCD63246  Galium glabrescens Daniel Sanchez-Mata; Tomas Santamaria 2006-7-26 s.n. Siskiyou Weed. Rail Creek Road from Gazelle-Callahan Road. Kangaroo Lake. Kangaroo Lake Botanical Area. Scott Mountains, Klamath National Forest. 1900 Comment
  HSC61215  Galium oreganum Al Hobart Siskiyou El Capitan Comment
  RSA276855  Galium trifidum Peter Rubtzoff 1955-7-10 1952 Siskiyou Duncans Mills Marsh Comment
  POM60669  Galium triflorum Copeland 1903-9-14 3933 Siskiyou Sisson. Comment
  CAS-BOT-BC182266  Garrya fremontii Carl B. Wolf 1927-8-27 1136 Siskiyou On the Klamath River, at mouth of Crawford Creek Comment
  CAS-BOT-BC182273  Garrya fremontii C. B. Wolf 1931-9-2 s.n. Siskiyou 4 miles above junction of McCloud Road with the Pacific Highway 1188 Comment
  CAS-BOT-BC182277  Garrya fremontii Geo. D. Butler 1910-6-17 1565 Siskiyou Humbug Mountain Comment
  HSC98346  Gaultheria humifusa Gordon Leppig, J. Kalt 1996-7-9 378 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SEINET3150044  Gayophytum diffusum G. D. Butler 1910-7-3 1630 Siskiyou Goosenest foothills 1219 Comment
  HSC34828  Gayophytum diffusum subsp. parviflorum J. P. Smith, J. O. Sawyer 1975-10-23 8487 Siskiyou 1768 Comment
  RSA34393  Gayophytum diffusum subsp. parviflorum W. Bridge Cooke 1947-8-9 17791 Siskiyou Around Horse Camp, Mount Shasta. 2439 Comment
  JEPS27519  Gayophytum heterozygum W. L. Jepson Jul 17 1902-Jul 22 1902 2102 Siskiyou The Devil's Backbone; w Siskiyou Co. 1828 Comment
  UCD103563  Gayophytum heterozygum J. M. Tucker 1950-7-24 1946 Siskiyou Outskirts of town of Mt. Shasta, beside Highway 99. Comment
  UC878459  Gentiana calycosa John Thomas Howell 1939-8-8 15145 Siskiyou Black Mt. Marble Mts. Comment
  POM130608  Gentiana calycosa E. B. Copeland 1903-8-18 3829 Siskiyou Mt. Eddy 2287 Comment
  POM130547  Gentiana newberryi E. B. Copeland 1903-9-7 3878 Siskiyou Mt. Eddy. Comment
  CAS-BOT-BC217412  Gentiana plurisetosa Geo. D. Butler 1910-7-9 1709 Siskiyou Shackleford Creek 1219 Comment
  CDA33310  Gentianella amarella F. D. Horn 1979-8-15 Siskiyou South of Carmen Lakes area, west of Scott Mountain, southeast of Callahan. 0 Comment
  HSC85691  Gentianella amarella subsp. acuta J. P. Smith 1980-8-24 10340 Siskiyou Scott Mtn. Campground, head of Mule Creek 1646 Comment
  UC35458  Gentianopsis simplex W. C. Blasdale 1894-7-30 Siskiyou Sissons Comment
  UC165386  Geum macrophyllum Geo. D. Butler 1908-8-11 1592 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC459619  Geum macrophyllum Wm. Bridge Cooke 1938-6-24 11081 Siskiyou MacBride Springs Comment
  RSA454259  Geum macrophyllum Louis C. Wheeler 1934-6-14 2712 Siskiyou Siskiyou Mts. 1280 Comment
  UC722695  Geum triflorum C. L. Hitchcock, J. S. Martin 1939-7-9 5326 Siskiyou 1/2 mi se of King's Castle (Marble Mountains); Marble Mountains 1828 Comment
  UC60878  Gilia capitata subsp. capitata Harley P. Chandler June, 1901 1665 Siskiyou Marble Mountain North Coast Ranges, Marble Mountain 2438 Comment
  JEPS101158  Glossopetalon spinescens var. aridum Dean W. Taylor 1996-6-18 15703 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1249 Comment
  RSA582093  Glyceria L. C. Wheeler 1934-6-14 2710 Siskiyou Arrastre Creek off Hungry Creek. Siskiyou Mountains. 1280 Comment
  UCR143023  Glyceria borealis L. C. Wheeler 1934-6-26 2797 Siskiyou Siskiyou Mountains, Cottonwood Creek 838 Comment
  HSC22306  Glyceria elata J. O. Sawyer 1969-8-4 1792 Siskiyou Along C.C.C. road 1341 Comment
  CAS-BOT-BC282791  Glyceria leptostachya Louis C. Wheeler 1934-6-26 2797 Siskiyou Cottonwood Creek, Siskiyou Mts. 838 Comment
  RSA238998  Glyceria striata Frederick W. Oettinger 1969-8-16 1403 Siskiyou Wire Grass Meadow, English Lake Basin. Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  SEINET10790893  Glyceria striata Lawrence P. Janeway 1983-9-11 Janeway 684 Siskiyou Preston Peak quad (15') T18N, R6E, SW1/4 of sec. 20. Siskiyou Mountains; at Poker Flat, a meadow in a fir forest. On wet edge of a dry "island in middle of the lower wet part of the meadow. 1524 Comment
  CAS-BOT-BC302672  Gnaphalium palustre Geo. D. Butler 1910-6-12 1560 Siskiyou Yreka Creek Comment
  CAS-BOT-BC302679  Gnaphalium palustre Louis C. Wheeler 1934-6-10 2676 Siskiyou Klamath National Forest. Hungry Cr. 1097 Comment
  UCD132457  Gnaphalium palustre John M. Tucker 1974-7-28 4330 Siskiyou Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  RSA237525  Gnaphalium palustre Frederick W. Oettinger 1969-9-4 1627 Siskiyou East side of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1951 Comment
  SEINET8770785 Image available Gnaphalium palustre G. D. Bulter 1910-6-12 1560 Siskiyou Yreka Creek Comment
  HSC19395  Goodyera oblongifolia J. O. Sawyer 1968-6-18 195 Siskiyou Above S Russian Creek on W side. 1463 Comment
  HSC19398  Goodyera oblongifolia J. O. Sawyer 1968-9-13 718 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  RSA59842  Grayia spinosa E. K. Balls 1950-5-17 14726 Siskiyou SW corner of Tule Lake, (State Game Refuge). 1265 Comment
  UCD119376  Hackelia californica K. M. Meyer; A. Townesmith 2007-7-29 170 Siskiyou Shasta-Trinity National Forest. 0.3 mi. on 40N25 Rd., off Siskiyou County Rd., A10/Everitt Memorial Hwy. 1805 Comment
  JEPS25535  Hackelia californica Rimo Bacigalupi with Lincoln Constance 1959-6-16 7150 Siskiyou 0.3 mi e of Deadhorse Summit (along State Hwy 89) 1341 Comment
  CHSC36143  Hackelia cusickii K. Bridwell 1978-7-6 167 Siskiyou N slope of Sheep Mountain, ca. 10 mi e of Macdoel. 1645 Comment
  HSC58850  Hackelia micrantha Marvin Butler 1971-7-7 43 Siskiyou Near Mary's Meadow, close to the town of Cave Junction 1464 Comment
  HSC62458  Hackelia micrantha Ruby Van Deventer 1939-7-18 Siskiyou Twin Valley Comment
  UC1186469  Hackelia micrantha John H. Weiler, A. P. Nelson 1960-6-26 60223 Siskiyou 0.6 mi n of Bacon Rind Public Camp (s of Sawyers Bar) Comment
  HSC61917  Hackelia micrantha Ruby Van Deventer 1937-7-24 Siskiyou Poker Flat 1585 Comment
  HSC44849  Hastingsia alba J. P. Smith, Steve Selva 1970-6-15 3988 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  UC72277  Hastingsia alba Milo S. Baker 1899-8-4 Siskiyou Dead Horse Canyon Dead Horse Canyon (e Siskiyou County) Comment
  RSA184797  Hastingsia alba Gilbert Muth 1966-7-17 387 Siskiyou Ridge, near lookout, Marble Mountains. 2043 Comment
  CAS-BOT-BC302453  Hazardia whitneyi var. discoidea Doris K. Kildale 1928-8-19 6533 Siskiyou Trail from English Lake to Hancock Lake on way to Marble Mt. Comment
  UC892017  Hazardia whitneyi var. discoidea Louis C. Wheeler 1934-8-5 3045 Siskiyou Condrey Mt., Mt. Diablo Mer Siskiyou Mts., Condrey Mt. 2164 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
  RSA0037111  Helenium autumnale T. C. Fuller 1960-8-23 4966 Siskiyou ca. 1 mi. SE/Greenview, Scott Valley. Comment
  HSC58872  Helenium bigelovii Marvin Butler 1971-7-28 215 Siskiyou Near youngs Valley, close to the town of Cave Junction 1403 Comment
  RSA183489  Helenium bigelovii J. M. Tucker 1963-8-17 3738 Siskiyou In vicinity of cabin, lower Red Rock Valley, Marble Mountain Wilderness Area. 1494 Comment
  CAS-BOT-BC305315  Helianthella Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  SEINET11848993  Helianthella californica H. M. Hall, Babcock, E. B. 1903-1 4056 Siskiyou Mount Shasta, Sierra Nevada Mountains, near Sisson 1067 Comment
  UC1034577  Helianthella californica subsp. nevadensis Douglas Barbe 1955-7-26 267 Siskiyou nw slope Scott Mtn (along a dry ditch) 1828 Comment
  CAS-BOT-BC305576  Helianthus bolanderi Doris Overman 1919-9-1 s.n. Siskiyou Yreka Comment
  UC166242  Helianthus bolanderi Geo. D. Butler 1908-7-14 506 Siskiyou field near Yreka Comment
  CAS-BOT-BC305571  Helianthus bolanderi L. R. Abrams 1927-9-11 12139 Siskiyou Shasta Valley, Yreka to Gazelle Comment
  JEPS84217  Hemitomes congestum L. R. Heckard with J. Hickman et al. 1986-7-17 6449 Siskiyou Cook and Green Pass ca. 5 mi N of the town of Seiad Valley 1465 Comment
  HSC33330  Hemizonella minima William J. Ferlatte 1974-7-14 1522 Siskiyou Big Flat Area; Lower slopes of Grouse Ridge E of Big Flat Campground 1555 Comment
  SFV4041  Hemizonella minima J. M. Tucker 1963-7-4 3695 Siskiyou Beside road from Etna to Sawyer's Bar, about 4.7 miles (by road) from southwest Etna. Comment
  POM52735  Hemizonia fitchii Geo D. Butler 1910-7-31 1805 Siskiyou Near Yreka. Comment
  CHSC105862  Hesperochiron californicus Julie Kierstead Nelson 2010-7-3 2010 -013 Siskiyou Scott Mountain; Road 40N08 from Hwy. 3 at summit to Carmen Lake, at Pacific Crest Trail crossing. On west-facing , rocky slope and on gravel of road. 1676 Comment
  RSA435709  Hesperolinon micranthum Louis C. Wheeler 1934-6-2 2614 Siskiyou Oak Knoll Ranger Station, Klamath River. Siskiyou Mtns. (Mt Diablo Mer.) 671 Comment
  UC1212238  Hesperolinon micranthum Herbert L. Mason 1950-7-1 14046 Siskiyou on road from Callahans to summit of mountain; Scott Mountain grade Comment
  UC164322  Heterocodon rariflorum Geo. D. Butler 1910-7-8 1662 Siskiyou Shackleford Creek 1219 Comment
  CDA15536  Heteromeles arbutifolia G. F. Hrusa 1998-7-5 14704 Siskiyou Siskiyou Mountains; Hwy 96 17.6 mi. W of Happy Camp. Comment
  CAS-BOT-BC312303  Heterotheca villosa var. minor G. Muth 1966-7-25 453 Siskiyou Marble Valley Comment
  CAS-BOT-BC420707  Heuchera merriamii C. L. Hitchcock; J. S. Martin 1939-7-7 5285 Siskiyou Sanger Peak 1780 Comment
  HSC681  Heuchera merriamii William J. Ferlatte 1967-8-20 1061 Siskiyou Caribou Basin, Sawtooth Ridge, steep, N-facing slope 2043 Comment
  UC1190182  Heuchera merriamii Ira L. Wiggins 1955-7-27 13561 Siskiyou Caribou Lake; Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA0063195  Heuchera merriamii G. D. Barbe 1955-8-5 367 Siskiyou Growing along the trail to Caribou Lake. Salmon Mtns. 2409 Comment
  JEPS83828  Heuchera micrantha var. erubescens Wayne Roderick July 1978 Siskiyou vicinity Cook and Green Pass; Siskiyou Mts 1463 Comment
  CAS-BOT-BC319681  Hieracium albiflorum A. A. Heller 1915-8-26 12229 Siskiyou North side of Mt. Eddy 2133 Comment
  HSC22177  Hieracium albiflorum J. O. Sawyer 1969-6-12 911 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  CAS-BOT-BC319686  Hieracium albiflorum L. E. Smith 1913-7-1 449 Siskiyou Dunsmuir Comment
  HSC22155  Hieracium bolanderi J. O. Sawyer 1969-7-16 1132 Siskiyou Summit NE of Waterdog Lake 2332 Comment
  CAS-BOT-BC318647  Hieracium horridum John Thomas Howell 1937-7-24 13421 Siskiyou Caribou Basin, Salmon-Trinity Alps Comment
  UCD77771  Hieracium horridum Robert E. Preston 2001-8-26 1772 Siskiyou Klamath National Forest, Rainbow Mountain 2072 Comment
  UC897833  Hieracium nudicaule Lewis S. Rose 1937-7-26 37609 Siskiyou McCloud 1005 Comment
  CHSC71472  Hieracium scouleri var. nudicaule Vernon H. Oswald; Lowell Ahart 1998-7-21 9314 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
  JEPS83829  Holodiscus discolor Wayne Roderick July 1978 Siskiyou Siskiyou mts.; vicinity Cook and Green Pass Comment
  RSA50153  Holodiscus discolor E. K. Balls 1949-7-10 13960 Siskiyou 8 miles from Sawyers Bar on way to Cecilville. 793 Comment
  UC1281115  Holodiscus discolor H. E. McMinn 1931-6-27 2529 Siskiyou Klamath River, Clear Creek Clear Creek; Klamath River, Clear Creek Comment
  CAS-BOT-BC150140  Holodiscus microphyllus var. glabrescens Alice Eastwood; John Thomas Howell 1940-6-14 8262 Siskiyou Lava Beds Nat. Mon. near Indian Wells Comment
  CAS-BOT-BC150141  Holodiscus microphyllus var. glabrescens Wm. Bridge Cooke 1938-9-17 11702 Siskiyou Ridge below Horse Camp Comment
  SDSU9087  Holodiscus microphyllus var. glabrescens D. F. Howe 1964-8-4 3933 Siskiyou Probably Modoc or Shasta National Forest., 9.0 miles from entrance to Lava Bed National Monument. 2042 Comment
  JEPS73758  Hordeum brachyantherum Geo. D. Butler 1909-6-4 813 Siskiyou near Yreka Comment
  CAS-BOT-BC285059  Hordeum marinum subsp. gussoneanum L. R. Short 1933-6-16 42 Siskiyou Klamath National Forest, S. side of Klamath R. 609 Comment
  JEPS107284  Hordeum marinum subsp. gussoneanum Lowell Ahart, John Dittes 2005-6-9 12000 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
  UCD85929  Hordeum murinum subsp. glaucum A. A. Beetle; G. L. Stebbins Jr. 1942-5-30 3387 Siskiyou At Weed. Comment
  SEINET3156785  Horkelia daucifolia G. D. Butler 1910-5-4 1272 Siskiyou near Yreka Comment
  UC54352  Horkelia daucifolia H. M. Hall and E. B. Babcock June, 1903 4085 Siskiyou near Edgewood; Sierra Nevada, Mt. Shasta 1158 Comment
  CAS-BOT-BC143967  Horkelia daucifolia John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53562 Siskiyou Yreka 822 Comment
  CHSC99207  Horkelia fusca subsp. parviflora L. P. Janeway; B. Castro 2007-7-28 9127 Siskiyou High Cascade Range. Medicine Lake Highlands; west side of Arnica Sink about 6.5 km west of Glass Mountain. 2042 Comment
  SEINET6758854  Horkelia fusca subsp. parviflora A. Sanger 1996-7-16 2425 Siskiyou Approximately 200 yards north of road 42N56 along road 42N12. 1695 Comment
  SBBG2952  Horkelia fusca var. parviflora H. and M. Dearing 1939-6-5 3546 Siskiyou McCloud 1066 Comment
  CAS-BOT-BC539426  Horkelia tridentata var. tridentata Julie Kierstead Nelson; Rhonda Posey 2007-6-15 2007 -019 Siskiyou North side of Mt. shasta, south of Hwy. 97, along Forest Service Rd. 42N84; in area burned by Hotlum Fire in february 2006; CA. 4 miles NE of town of Weed. 1249 Comment
  CAS-BOT-BC201123  Hosackia crassifolia Alice Eastwood 1912-7-15 111 Siskiyou Mc Cloud [McCloud] Comment
  CHSC30245  Hulsea nana M. S. Taylor; J. Prouty, E. Heinitz 1980-8-19 3265 Siskiyou Paint Pot Crater. 1920 Comment
  POM260543  Hulsea nana W. Bridge Cooke 1939-7-26 s.n. Siskiyou Mount Shasta: scattered through the lava talus along the Summit Trail below Lake Helen Comment
  CDA22258  Humulus lupulus T. C. Fuller 1959-10-21 3155 Siskiyou North limits of Mt. Shasta City. 0 Comment
  JEPS82678  Hydrophyllum occidentale Wayne Roderick 1984-6-5 Siskiyou ca 12 air km sw Mt. Shasta City; Castle Lake 1828 Comment
  UC187747  Hypericum formosum var. scouleri Katharine Brandegee July 1887 Siskiyou Edgewood Comment
  UC1216705  Hypericum perforatum W. B. and V. G. Cooke 1962-8-19 33549 Siskiyou near Memorial Hwy. Mt. Shasta Comment
  HSC29262  Hypericum perforatum Frederick W. Oettinger 1969-8-24 1525 Siskiyou Marble Mtn. Wilderness Area, between English Lake and Sundew Bog 1799 Comment
  RSA239013  Hypericum perforatum Frederick W. Oettinger 1966-7-30 s.n. Siskiyou Crawford Creek Guard Station, Salmon River District, Klamath National Forest, Cecilville Comment
  SEINET3157533  Hypericum scouleri G. D. Butler 1910-7-3 1627 Siskiyou Goosenest foothills 1219 Comment
  CAS-BOT-BC401358  Hypericum scouleri Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Comment
  CAS-BOT-BC88619  Idahoa scapigera Louis C. Wheeler 1935-3-16 3373 Siskiyou Klamath River. Klamathon. 701 Comment
  CAS-BOT-BC88626  Idahoa scapigera George Dexter Butler 1910-3-21 1136 Siskiyou Drylands near Yreka. Comment
  CHSC52811  Iliamna bakeri L. R. Heckard; L. Constance, R. Ornduff 1969-6-24 2290 Siskiyou Northwest side of Mt. Shasta along U.S. 97, 0.7 mile south of Bolam road junction. Comment
  POM301619  Iliamna bakeri Carl B. Wolf 1941-7-26 11073 Siskiyou 10.3 miles NE of Weed along Hwy 97 915 Comment
  SD42408  Iliamna bakeri Carl B. Wolf 1941-7-26 11073 Siskiyou 10.3 miles northeast of Weed along U. S. Highway 97. 914 Comment
  SD46432  Ipomopsis aggregata E. K. Balls, L. W. Lenz 1956-6-18 21803 Siskiyou 4.4 miles east of McCloud, State Highway 89. 1036 Comment
  SD76181  Ipomopsis aggregata Helen V. Witham unknown 598 Siskiyou McBride Springs Road, Mt. Shasta. 1500 Comment
  UC455676  Ipomopsis aggregata I. J. Condit 1911-7-15 Siskiyou McCloud; Toll Rd to Shasta Springs Comment
  UC52524  Ipomopsis aggregata Geo. B. Grant Sept, 1902 4967 Siskiyou Sisson Comment
  UC726812  Ipomopsis aggregata A. A. Heller 1938-7-12 15250 Siskiyou 5 mi n Weed (along US Hwy 97) 1066 Comment
  HSC81565  Ipomopsis aggregata subsp. aggregata Thomas W. Nelson, Jane P. Nelson 1980-7-17 6093 Siskiyou Along FS Rd. 17, 0.5 mi. N of summit at county line 2073 Comment
  POM65763  Ipomopsis aggregata subsp. formosissima E. B. Copeland 1903-8-15 3919 Siskiyou Mount Shasta. 2317 Comment
  HSC63122  Iris tenax subsp. klamathensis M. A. Baker 1979-5-17 725 Siskiyou Along FS Rd. 15N01, 13 mi. from Hwy. 96 Comment
  CHSC75691  Isatis tinctoria Vernon H. Oswald; Lowell Ahart 1999-7-5 9804 Siskiyou Gazelle-Callahan Hwy. 11.3 mi west of Gazelle, 0.2 mi east of summit of Gazelle Mtn. Roadside. 1188 Comment
  HSC36871  Isatis tinctoria J. P. Smith 1974-5-26 7528 Siskiyou On Hwy. 3, 0.5 mi. NE of Fort Jones 854 Comment
  UCD115196  Isatis tinctoria Collector unknown 1950-1 s.n. Siskiyou location unknown. Comment
  UC371166  Isoetes bolanderi G. D. Butler 1908-8-3 256 Siskiyou Log lake Comment
  OBI80241  Isoetes occidentalis David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains. Klamath National Forest. Rye Patch Creek Trail. Paradise Lake. 1865 Comment
  UC1408840  Isoetes occidentalis Frederick W. Oettinger and R. F. Thorne 1969-8-7 1268 Siskiyou w end English Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1752 Comment
  UCR113020  Isoetes occidentalis I. Shackleford 1997-7-24 259 Siskiyou Klamath National Forest. Horseshoe Lake Comment
  POM302090  Isopyrum stipitatum L. E. Smith 1913-04 s.n. Siskiyou Yreka Comment
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Jul 5 2010
  CAS-BOT-BC135372  Ivesia gordonii Gilbert Muth 1966-7-22 381 Siskiyou Ridge of Marble Mountain - Marble Mts. 2194 Comment
  CHSC88379  Juncus balticus Jenny Marr 1993-7-1 184 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1100953  Juncus balticus Herbert L. Mason 1948-7-18 13615 Siskiyou Grass Lake Comment
  UC637023  Juncus bolanderi Edward Lee 1934-8-13 1057 Siskiyou 4 mi n Happy Camp; Klamath National Forest, Indian Creek 411 Comment
  HSC96558  Juncus drummondii Gordon Leppig 1998-8-14 1028 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  RSA238903  Juncus drummondii Frederick W. Oettinger 1969-9-4 1660 Siskiyou Just S of Tom s Lower Pond. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  HSC96555  Juncus mertensianus Gordon Leppig, J. Kalt 1996-7-10 380 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UC1265333  Juncus nevadensis Frederick W. Oettinger 1968-8-2 351 Siskiyou just sw Diamond Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2072 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
  HSC30707  Juncus nevadensis var. nevadensis Frederick W. Oettinger 1969-7-31 1115 Siskiyou Sundew Bog, W of English Lake 1829 Comment
  JEPS66697  Juncus orthophyllus B. C. Goldsmith 1916-6-22 1 Siskiyou se of Mt. Shasta; McCloud Flat, Pilgrim Creek Comment
  JEPS84037  Juncus parryi L. R. Heckard with S. D'Alcamo, J. Hickman, W. Roderick 1986-7-16 6428 Siskiyou ca 5 mi n Seiad Valley town (cirque at head of Hell's Canyon, e slope of Kangaroo Mountain); Kangaroo Mountain, Hell's Canyon 1828 Comment
  UC618368  Juncus parryi John Thomas Howell 1937-7-24 13425 Siskiyou Caribou Basin Salmon-Trinity Alps 1981 Comment
  UCD141754  Juncus parryi William Bridge Cooke 1937-8-7 9252 Siskiyou Vicinity of The Gate (south) Hudsonian. 2590 Comment
  CAS-BOT-BC279922  Juncus trilocularis Peter F. Zika 2009-8-16 24598 Siskiyou Forest Service Road 46N04, Cascade Range Highlands (CaRH) 1550 Comment
  RSA159440  Juniperus communis var. montana G. A. Coleman 1901-8-16 s.n. Siskiyou Rocky ridge near head of Paulters Creek 2515 Comment
  CAS-BOT-BC81242  Juniperus occidentalis Elmer I. Applegate 1904-6-15 3082 Siskiyou Laird, Shasta Valley Comment
  CHSC27340  Juniperus occidentalis T. B. Devine 1977-10-23 371 Siskiyou About 300 yds w of jct of Hwy 3 and unimproved lagging road leading w to area of Little and Big Duck Lakes. 944 Comment
  HSC1278  Juniperus occidentalis R. C. Wunner 1965-6-18 205 Siskiyou Indian Well Campground, Lava Beds National Monument 1433 Comment
  HSC37540  Juniperus occidentalis J. P. Smith 1974-5-27 7603 Siskiyou Along FS Rd. 47N03 1524 Comment
  RSA715958  Juniperus occidentalis var. occidentalis L. Ahart, John Dittes 2005-6-9 12021 Siskiyou On the east side of a poor rock fence, about 350 yards E of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2.5 miles (air) ESE of Grenada. 775 Comment
  SEINET11056610  Juniperus occidentalis var. occidentalis D. Charlet, T. Charlet 1996-11-25 2341 Siskiyou Scott Mountains, head of Willow Creek, at pass and junction with FR 41N03. 1512 Comment
  SEINET11056662  Juniperus occidentalis var. occidentalis D. Charlet, T. Charlet 1996-11-25 2343 Siskiyou Scott Mountains, on road to Callahan, 9 road miles SW of summit. 1116 Comment
  SDSU2874  Kalmia polifolia Harvey 1939-7-28 2499 Siskiyou Mt. Shasta. Comment
  SEINET3108511  Kalmia polifolia Steve Selva, Robert Jensen 1974-8-25 48 Siskiyou Meadow at west end of Little Duck Lake. Comment
  UC60949  Keckiella lemmonii Geo. B. Grant Sep 1902 4189 Siskiyou Dunsmuir Comment
  CAS-BOT-BC94868  Kelloggia galioides R. C. Wenk 2008-7-24 928 Siskiyou Kangaroo Lake, S of Gazelle-Callahan Road 1889 Comment
  RSA760931  Kelloggia galioides Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63379 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 1768 Comment
  UCD86007  Koeleria macrantha L. Whitney 1934-6-29 2293 Siskiyou Tennant. 1524 Comment
  RSA0107897  Kopsiopsis strobilacea Thomas H. Harris 1947-4-30 s.n. Siskiyou Near West Fork Campground, north of Happy Camp on Indian Creek Road. 1219 Comment
  OBI55442  Lactuca biennis David J. Keil 1992-7-20 23502 Siskiyou Klamath NF. Along Forest Rd 46N64, 2.8 mi W of Scott river rd Comment
  OBI55436  Lagophylla ramosissima David J. Keil, Kathleen Keil 1992-7-20 23496 Siskiyou Klamath NF, W of Fort Jones. Along Forest Rd 44N45, 4.4 mi S of Scott river rd Comment
  CAS-BOT-BC123328  Lathyrus brownii H. E. Brown 1899-1-1 391 Siskiyou North side of Mt. Shasta Comment
  HSC103308  Lathyrus jepsonii subsp. californicus Thomas W. Nelson, Jane Nelson 1983-7-29 7505 Siskiyou Along Forest Service Rd. 41N14, 1.7 mi. N of junction with Callahan-Cecilville County Rd. 1463 Comment
  JEPS75661  Lathyrus nevadensis var. nevadensis Geo. D. Butler 1909-6-22 916 Siskiyou Goosenest Mountain 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
  UC536682  Layia glandulosa D. H. Johnson and F. G. Palmer 1935-5-16 Siskiyou 11 mi ne Weed 1097 Comment
  RSA183459  Ledum glandulosum J. M. Tucker 1963-7-5 3704 Siskiyou Blake's Fork of South Russian Creek (a tributary of the Salmon River), ca. 7 miles (airline) east of Sawyer's Bar, Salmon Mountains. 1616 Comment
  HSC42920  Leersia oryzoides Ken Stillman 1976-8-31 461 Siskiyou Along the Klamath River at Williams Point. 366 Comment
  CHSC519  Lepidium campestre G. Spurlock 1935-6-1 Siskiyou Comment
  UC375301  Lepidium densiflorum var. macrocarpum Geo. D. Butler 1909-7-14 130 Siskiyou near Yreka Comment
  CAS-BOT-BC89826  Lepidium montanum A. A. Heller 1905-6-19 8068 Siskiyou Shasta Valley near Grenada Station. Comment
  CHSC43653  Lepidium perfoliatum Vernon Oswald 1986-5-29 2069 Siskiyou Hwy 97 between Dorris and Macdoel, 47.5 mi ne of Weed. Roadside. 1219 Comment
  UCD115850  Lepidium perfoliatum P. Quentin Tomich 1954-6-26 429 Siskiyou Symbol Bridge, Lava Beds National Monument. 1432 Comment
  JEPS20614  Lessingia nemaclada Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sims Region of the Upper Sacramento 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
  RSA507783  Lessingia nemaclada J. C. Semple, S. Heard 1986-8-16 8467 Siskiyou CA-96, 1.6 km west of Horse Creek, before CA-3 Comment
  UC1223214  Lessingia ramulosa Joseph P. Tracy 1949-9-14 18552 Siskiyou 5 mi se Cecilville (at Summerville); South Fork of Salmon River 762 Comment
  UCD134102  Lessingia ramulosa James P. Smith; John Sawyer 1971-9-18 4796 Siskiyou State 3 between Callahan and Etna at turnoff to the Proctor Ranch. Comment
  CAS-BOT-BC58263  Leucothoe davisiae John Thomas Howell 1937-7-24 13387 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CAS-BOT-BC58265  Leucothoe davisiae Walter Knight; Irja Knight 1983-9-16 4934 Siskiyou Outflow at Cliff lake, upper Sacramento River watershed. 1767 Comment
  CDA23972  Lewisia cotyledon D. L. Janssen, F. D. Horn 1978-5-19 Siskiyou Scott Bar Mountain Lookout, approximately 20 km west of Fort Jones. 0 Comment
  CHSC95122  Lewisia cotyledon var. cotyledon L. P. Janeway 2006-7-3 8771 Siskiyou Klamath Ranges. Salmon Mountains; 100 m west of the Taylor Lake Trailhead Road 0.8 km south of the main road. North-facing edge at top of narrow rocky spur ridge. 1820 Comment
  CAS-BOT-BC444045  Lewisia cotyledon var. cotyledon Gilbert Muth 1965-8-5 306 Siskiyou North slope of Marble Rim, near Blk. Mt. Comment
  CAS-BOT-BC444048  Lewisia cotyledon var. cotyledon Gilbert Muth 1969-8-6 1177 Siskiyou Second Valley Comment
  JEPS74489  Lewisia cotyledon var. heckneri W. J. Ferlatte 1966-6-22 76 Siskiyou Josephine Lake basin Trinity Alps 1676 Comment
  CAS-BOT-BC444063  Lewisia cotyledon var. howellii L. R. Short 1933-5-24 119 Siskiyou Klamath National Forest. Rocky cliff on Klamath 548 Comment
  CAS-BOT-BC444076  Lewisia leeana R. F. Thorne; Frederick W. Oettinger 1969-8-4 63370 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. SE side of Diamond Lake 2072 Comment
  CHSC30309  Lewisia leeana M. S. Taylor 1980-7-8 3093 Siskiyou S side of Little Castle Lake, in cliffs. 1767 Comment
  HSC29488  Lewisia leeana Frederick W. Oettinger 1968-8-22 594 Siskiyou Marble Mtn. Wilderness Area, slope between English Peak and Diamond Lake 2195 Comment
  SBBG124419  Lewisia leeana C. B. Hardham 1961-7-1 8011 Siskiyou White Mtn, just below summit 1981 Comment
  SEINET10572649  Lewisia leeana Mary Susan Taylor 1980-7-8 Taylor 3093 Siskiyou T39N R5W south center sec 19, Dunsmuir quad; Shasta-Trinity Natl Forest; S end of Little Castle Lake, in steep granitic cliffs. 1768 Comment
  UC1045300  Lewisia pygmaea W. B. Cooke 1940-8-22 15484 Siskiyou Squaw Valley Creek meadows Mount Shasta, Squaw Valley Creek Comment
  CAS-BOT-BC444468  Lewisia rediviva var. rediviva L. E. Smith 1915-5-1 s.n. Siskiyou Yreka Comment
  UC618650  Lewisia triphylla William Bridge Cooke 1938-9-8 11657 Siskiyou Squaw Creek Meadows Mount Shasta Comment
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Mar 31 2006
  CAS-BOT-BC283817  Leymus cinereus David D. Keck 1949-7-19 6352 Siskiyou 2 miles S of Grenada 777 Comment
  POM229945  Leymus triticoides L. C. Wheeler 1935-6-2 3543 Siskiyou Shasta River; Siskiyou Mts. 732 Comment
  UCD65601  Leymus triticoides Mr. Roseman 1913-1 12 Siskiyou Butte Valley. Comment
  UCD65623  Leymus triticoides Geo. D. Butler 1909-6-19 838 Siskiyou Low land near Yreka. Comment
  UC663138  Ligusticum grayi W. C. McCalla 1940-7-5 6356 Siskiyou s. Mt. Shasta (near McCloud) 1249 Comment
  HSC61925  Lilium bolanderi Al Hobart 1959-6-26 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC509382  Lilium kelleyanum Alice Eastwood 1912-7-18 1215 Siskiyou Sisson Comment
  UC705659  Lilium pardalinum Marion Ownbey, Fred G. Meyer 1940-7-6 2200 Siskiyou Cayenne Ridge; Marble Mountain Comment
  RSA28138  Lilium washingtonianum Albert M. Vollmer, I. L. Wiggins 1940-7-5 9 Siskiyou 3.5 miles northeast of the town on Mount Shasta 1402 Comment
  HSC33339  Lilium washingtonianum subsp. purpurascens William J. Ferlatte 1974-7-25 1583 Siskiyou Yellow Rose Mine 2073 Comment
  RSA237901  Lilium washingtonianum subsp. purpurascens Frederick W. Oettinger 1969-7-31 1116 Siskiyou Northwest of English Lake. Salmon Mtns. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CHSC4536  Lilium washingtonianum subsp. washingtonianum J. E. Bowlin 1967-7-18 62 Siskiyou Ca. 4.2 mi w of Mount Shasta Ski Bowl, and 1-10 yds. Off the road. 1950 Comment
  CAS-BOT-BC133092  Lilium washingtonianum subsp. washingtonianum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 9 Siskiyou 3.5 miles northeast of the town of Mount Shasta 1402 Comment
  CAS-BOT-BC133103  Lilium washingtonianum subsp. washingtonianum A. A. Heller 1920-7-10 13440 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1158 Comment
  CAS-BOT-BC133107  Lilium washingtonianum subsp. washingtonianum Albert Vollmer 1949-7-5 10 -A Siskiyou Base of Mount Shasta Comment
  UC880334  Linanthus ciliatus A. A. Heller 1916-6-23 12428 Siskiyou near Black Butte (n of Sisson) 1127 Comment
  JEPS58437  Linanthus harknessii W. L. Jepson 1940-7-3 20115 Siskiyou about 5 mi se Bartle; Big Bear Flat 1219 Comment
  RSA31646  Linanthus pungens subsp. pulchriflorus A. A. Heller 1938-7-12 15254 Siskiyou Sixteen miles north of Weed on U.S. Highway #97. Comment
  CDA6304  Linaria genistifolia subsp. dalmatica T. C. Fuller 1960-6-3 4649 Siskiyou Mt. Hebron-Medicine Lake Road, just east of Rock School Road. 0 Comment
  CAS-BOT-BC416405  Linnaea borealis subsp. longiflora H. A. Thomas; J. H. Thomas 1954-7-23 4462 Siskiyou Salmon-Trinity Mts., about 6 miles SE of Cecilville. Vicinity of Blind Horse Creek. 1036 Comment
  UC169897  Linum lewisii Harley P. Chandler June, 1901 1652 Siskiyou North Coast Ranges, Marble Mountain Marble Mountain; North Coast Ranges, Marble Mountain 2438 Comment
  UC336569  Listera convallarioides unknown July 1878 Siskiyou near Mt. Shasta 2133 Comment
  JEPS46620  Lithocarpus densiflorus Rick Hermann Sep 1900 Siskiyou Slate Creek; Upper Sacramento River Comment
  CAS-BOT-BC36542  Lithocarpus densiflorus var. echinoides L. E. Smith 1913-6-29 s.n. Siskiyou Rainbow Comment
  CAS-BOT-BC36575  Lithocarpus densiflorus var. echinoides Wm. Bridge Cooke 1941-9-16 16321 Siskiyou along trail to Castle Lake Road 1219 Comment
  RSA3388  Lithocarpus densiflorus var. echinoides Carl B. Wolf 1931-9-2 2393 Siskiyou Above junction of McCloud road with the Pacific Highway. 1189 Comment
  RSA184753  Lithophragma glabrum Gilbert Muth 1966-7-8 366 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  POM78347  Lomatium dissectum var. multifidum Geo. D. Butler 1910-5-7 1303 Siskiyou In thickets, dry hills near Yreka. Comment
  HSC82556  Lomatium engelmannii Thomas W. Nelson, Jane P. Nelson 1979-5-26 4712 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC91131  Lomatium engelmannii Jennifer Whipple 1976-7-2 1267 Siskiyou Dobkins Lake drainage on E facing slopes above Dobkins Lake 2256 Comment
  JEPS17115  Lomatium macrocarpum Geo. D. Butler 1909-5-9 744 Siskiyou Yreka Comment
  UC923160  Lomatium macrocarpum Freed W. Hoffman 1950-7-13 3287 Siskiyou Baldy Mountain Lookout North Coast Ranges, western Siskiyou Co. Comment
  UCR37581  Lomatium macrocarpum L. P. Janeway 1983-7-3 372 Siskiyou Ridgetop NW of Poker Flat. (Siskiyou crest) 1585 Comment
  RSA78822  Lomatium nudicaule P. A. Munz 1952-7-2 17900 Siskiyou Baldy Mountain about 6 air miles west of Happy Camp, Siskiyou Mountains 1738 Comment
  CAS-BOT-BC217789  Lomatium peckianum L. E. Smith 1913-6-29 422 Siskiyou Mt. Eddy Comment
  UC166105  Lomatium piperi Geo. D. Butler Feb 14 1909-Feb 28 1909 578 Siskiyou near Yreka Comment
  SEINET3143888  Lomatium triternatum G. D. Butler 1910-5-21 1380 Siskiyou Klamath Hills Comment
  RSA211259  Lonicera conjugialis William J. Ferlatte 1966-7-7 191 Siskiyou Caribou Basin. Broad, open basin with scattered meadows and bare rock surfaces; Trinity Alps. 1982 Comment
  CAS-BOT-BC240841  Lonicera interrupta Carl B. Wolf 1927-8-26 1029 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  CAS-BOT-BC240846  Lonicera interrupta C. H. M. 1907-9-26 s.n. Siskiyou Shovel Creek, Klamath Canyon Comment
  SEINET957271  Lotus corniculatus Ynez Whilton Winblad 1941-1 Siskiyou Between Oregon Line and Yreka. Comment
  UC917241  Lotus crassifolius var. crassifolius R. Tofsrud and J. M. Tucker 1948-8-2 1754 Siskiyou outskirts of McCloud McCloud Comment
  JEPS101139  Lotus nevadensis var. nevadensis Dean W. Taylor 1996-6-20 15720 Siskiyou upper Noyes Valley; along Noyes Valley Creek (ca. 20 air miles SW of Yreka) Comment
  UC163659  Lotus nevadensis var. nevadensis Geo. D. Butler 1910-5-31 1441 Siskiyou near Yreka Comment
  SFV5182  Lotus oblongifolius B. C. Templeton 1960-6-21 8558 Siskiyou Klamath Mountains Near the top of Scott Mountain. On mountain slopes. 1645 Comment
  UC1408891  Lotus pinnatus F. W. Oettinger 1969-8-12 1342 Siskiyou Abbotts Lower Cabin Salmon Mountains 1188 Comment
  UC725417  Lotus purshianus var. purshianus A. A. Heller 1916-8-24 12557 Siskiyou near Sisson 1074 Comment
  CAS-BOT-BC140247  Luetkea pectinata Louis C. Wheeler 1934-8-9 3089 Siskiyou Klamath National Forest, Jaynes Canyon 1981 Comment
  HSC4896  Luetkea pectinata J. O. Sawyer 1968-7-9 426 Siskiyou W of Little Duck Lake. 1936 Comment
  HSC69245  Luetkea pectinata Maralyn A. Renner 1980-9-1 2710 Siskiyou S side of Devil's Punchbowl 1829 Comment
  JEPS82111  Luina hypoleuca Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7480 Siskiyou 4 mi above Oak Bottom guard station (or 5 mi above and se of Somes Bar); Gorge of Salmon River 274 Comment
  CAS-BOT-BC342562  Luina hypoleuca Philip A. Munz 1952-7-1 17858 Siskiyou Klamath River, 6 miles north of Orleans 182 Comment
  CAS-BOT-BC201283  Lupinus Charles Piper Smith 1949-4-22 49131 Siskiyou Highway 99 - Hornbrook, 2.2 miles north Comment
  RSA12492  Lupinus albicaulis var. shastensis Carl B. Wolf 1934-7-4 5945 Siskiyou Horse Creek Road to Dry Lake Lookout, Siskiyou Mountains, 13.5 miles from Horse Creek Bridge on Klamath River 1524 Comment
  UC1096807  Lupinus albicaulis var. shastensis Douglas Barbe 1955-7-5 110 Siskiyou four and .7 mi w Greenview in Quartz Valley; Klamath Mountains, Quartz Valley 914 Comment
  SEINET7042819 Image available Lupinus albifrons A. G. Vestal 1955-5-16 s.n. Siskiyou Ca 2.2 miles west of Weed on a secondary road east of Route 99. Weed quadrangle UTM Zone 10, 547751mE, 4586681mN. Comment
  CAS-BOT-BC195964  Lupinus albifrons var. albifrons Alice Eastwood; John Thomas Howell 1934-4-20 1777 Siskiyou Near Yreka Comment
  SEINET10838378  Lupinus albifrons var. flumineus Edwin B. Copel 1903-7-3 Copeland 3527 Siskiyou On dry hills Comment
  HSC77064  Lupinus andersonii K. T. Stillman 1976-8-7 197 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  CAS-BOT-BC196353  Lupinus argenteus var. argenteus L. E. Smith 1914-5-14 695 Siskiyou Montague Comment
  HSC43859  Lupinus bicolor Maralyn O'Meara 1974-5-25 369 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  SEINET10936571  Lupinus breweri var. breweri Parker 1965-8-15 Parker 917 Siskiyou Dry rocky and sandy granite soil near syphon lake, salmon mt, siskiyou co., Calif. 2164 Comment
  CAS-BOT-BC215190  Lupinus croceus C. P. Smith 1940-6-6 15079 Siskiyou Along the Castle Lake Road 1584 Comment
  RSA105436  Lupinus croceus G. D. Barbe 1955-7-26 288 Siskiyou Among dry rocks at a small pond on the N slope of Scott Mtn. 1982 Comment
  SEINET10837763  Lupinus croceus var. croceus Oettinger 1969-7-25 OETTINGER s.n. Siskiyou Scott mts., Shasta-trinity nat'l forest: c. 15 Air mi. Sw of weed, near Kangaroo lake campground; dry rocky meadow in lodgepole pine forest. Comment
  SEINET10870599  Lupinus croceus var. croceus Patricia L. Kenney 1973-6-4 Kenney 384 Siskiyou Collected on a steep roadbank along rd. From cecilville to callahan; 6.4 mi. W Of callahan. 1737 Comment
  UC1576147  Lupinus excubitus J. P. Smith, J. O. Sawyer, and Maralyn O'Meara 1972-7-3 5703 Siskiyou e slope Kangaroo Mtn. (above Toehead Lake); e slope of Kangaroo Mtn, above Toehead Lake 1889 Comment
  SEINET8042186  Lupinus formosus G. D. Butler 1910-4-19 1201 Siskiyou Near Yreka Comment
  RSA430290  Lupinus klamathensis M. L. Conrad, David B. Dunn, LeDoux 1973-6-1 6968 Siskiyou East facing slope of road cut at the north edge of Hornbrook. 732 Comment
  HSC92404  Lupinus lapidicola Jennifer Whipple 1976-6-11 965 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  HSC2367  Lupinus latifolius William J. Ferlatte 1966-8-19 444 Siskiyou Head of Kidd Creek 2134 Comment
  RSA237940  Lupinus latifolius subsp. viridifolius Frederick W. Oettinger 1968-9-7 768 Siskiyou The High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, near Tobacco lake. 1890 Comment
  UC146909  Lupinus latifolius var. viridifolius Harley P. Chandler June, 1901 1710 Siskiyou near Marble Mountain (Shackleford Canyon, ridges and meadows); North Coast Ranges, nr Marble Mountain, Shackleford Canyon 1828 Comment
  UC609357  Lupinus latifolius var. viridifolius Eleanor B. Hart 1938-8-16 893 Siskiyou e slope Lower Wright Lake; e slope of Lower Wright Lake 2103 Comment
  UC82074  Lupinus leucophyllus Dr. E. B. Copeland 1903-7-14 3518 Siskiyou Klamathon Comment
  SEINET8056438  Lupinus leucophyllus G. D. Butler 1910-5-21 1376 Siskiyou Klamath River Comment
  CHSC118592  Lupinus luteolus Richard R. Halse 2016-5-29 9715 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  SEINET10488769  Lupinus luteolus James P. Smith, Steven B. Selva 1970-8-9 Smith, Jr. 4576 Siskiyou T.46n, r.2w, sec.14. Disturbed roadside in potato fields w of macdoel. Comment
  UC156987  Lupinus nanus Geo. D. Butler 1909-4-7 662 Siskiyou near Yreka; near Yreka Comment
  UC82283  Lupinus obtusilobus Copeland 1903-8-15 3918 Siskiyou Mt. Shasta Comment
  POM228985  Lupinus sellulus subsp. sellulus Louis C. Wheeler 1935-6-13 3582 Siskiyou N side Scott River, Scott Bar Mts. 823 Comment
  POM25903  Lupinus sellulus subsp. sellulus Geo. D. Butler 1908-6-28 367 Siskiyou Quartz Valley Comment
  SEINET10490872  Lupinus sellulus var. sellulus Joseph W. Congdon 1900-8-15 Congdon s.n. Siskiyou Forks castle road. Comment
  CAS-BOT-BC436698  Luzula comosa var. laxa Wm. Bridge Cooke 1939-7-7 13602 Siskiyou Mt. Shasta: between Bear Springs and Wagon Camp 1676 Comment
  CAS-BOT-BC436702  Luzula comosa var. laxa John Thomas Howell 1937-7-26 13533 Siskiyou Salmon-Trinity Alps: Caribou Basin 2286 Comment
  HSC92867  Luzula divaricata Jennifer Whipple 1976-7-23 1518 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2317 Comment
  UC2956  Luzula macrantha Harley P. Chandler June, 1901 1562 Siskiyou North Coast Ranges. Ridges and meadows near Marble Mountain (Klamath River to Marble Mountain) 1828 Comment
  HSC19119  Luzula parviflora J. O. Sawyer 1969-7-23 1455 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  HSC22203  Luzula parviflora J. O. Sawyer 1968-7-2 380 Siskiyou Upper drainage of Joe Creek 1677 Comment
  RSA186334  Luzula parviflora Gilbert Muth 1966-10-16 30 Siskiyou Marble Mountains 1793 Comment
  UC3045  Luzula subcongesta W. H. Brewer 1862-9-13 1378 Siskiyou near Camp 99 (Mount Shasta); , Near Camp 99 2560 Comment
  HSC21257  Lycium barbarum R. C. Wunner 1965-7-10 380 Siskiyou Lava Beds National Monument, Indian Well Ranger Station and around superintendent residence 1454 Comment
  RSA605516  Lysichiton americanus L. C. Wheeler 1959-7-25 7592 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  CDA5122  Lythrum salicaria J. R. Keck Jr., J. Massey 1985-8-7 PDR# 330138 Siskiyou Tulelake Wildlife Refuge. 0 Comment
  POM362225  Madia bolanderi L. C. Wheeler 1934-8-10 3103 Siskiyou Siskiyou Mountains: Dead Cow Creek 1829 Comment
  HSC72347  Madia elegans J. P. Smith, Linda M. Barker, J. Cole 1976-7-29 8960 Siskiyou Etna Campground 671 Comment
  POM211185  Madia elegans subsp. densifolia L. C. Wheeler 1934-9-18 3280 Siskiyou Klamath River near mouth Beaver Creek, Siskiyou Mts. 549 Comment
  CAS-BOT-BC344547  Madia exigua Louis C. Wheeler 1934-6-2 2607 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  JEPS125859  Madia gracilis Dean W. Taylor 1996-6-28 15749 Siskiyou Antelope Mountain, about 8 air miles S of Yreka Comment
  UC830825  Madia gracilis Lewis S. Rose 1937-7-26 37607 Siskiyou McCloud 1005 Comment
  RSA126302  Madia madioides I. L. Wiggins 1955-7-23 13466 Siskiyou Ridge W of China Creek, S side of S fork of Salmon River 1006 Comment
  UC133461  Madia sativa T. S. Brandegee July, 1887 Siskiyou Siskiyou Mountains Comment
  RSA78948  Mahonia aquifolium E. K. Balls, P. C. Everett 1952-10-12 4500 Siskiyou 1.7 mi. w. of boundary of Lava Beds Nat l Monument on road from Indian Well Ranger Station to Tennant. 1372 Comment
  RSA605520  Mahonia aquifolium L. C. Wheeler 1959-7-19 7583 Siskiyou Salmon and Marble Mountains Region: Near White Bear Mine, Callahan Gulch off Black Bear Creek. Comment
  RSA452625  Mahonia nervosa M. B. Dunkle 1944-6-25 9012 Siskiyou Beaver Creek, Siskiyou Mt. 1677 Comment
  HSC61171  Maianthemum racemosum subsp. amplexicaule Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  RSA264978  Maianthemum racemosum subsp. amplexicaule G. L. Clifton 1975-7-28 s.n. Siskiyou Near Cook and Green Pass near the Seiad Valley 1646 Comment
  HSC36714  Maianthemum racemosum subsp. amplexicaule Brent Whiteley 1975-6-29 110 Siskiyou 976 Comment
  CAS-BOT-BC514181  Maianthemum stellatum Geo. D. Butler 1910-5-15 1343 Siskiyou Mcadam Creek Comment
  CAS-BOT-BC514186  Maianthemum stellatum Wm. Bridge Cooke 1938-7-1 11148 Siskiyou Mount Shasta, Below Wagon Camp 1706 Comment
  HSC1870  Medicago lupulina L. C. Wheeler 1934-10-7 3313 Siskiyou Oak Knoll Ranger Station, Klamath River 671 Comment
  SEINET10599300  Melica aristata A. Arthur Heller 1921-7-5 Heller 13563 Siskiyou Sandy soil about shrubs near the State Teachers College grounds, near the town of Mt. Shasta. Yellow pine belt. Comment
  RSA239021  Melica bulbosa Frederick W. Oettinger 1968-8-8 451 Siskiyou Crapo Meadows. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  CAS-BOT-BC282119  Melica geyeri Roxana S. Ferris; Laura Lorraine 1948-6-12 11796 Siskiyou Scott Mountain Rd S of Callahan Comment
  HSC49216  Melica harfordii J. O. Sawyer, K. T. Stillman Jul 1977 2796 Siskiyou Mid slopes and ridges E of the Little N Fork Trail. 732 Comment
  HSC69248  Melica subulata Maralyn A. Renner 1980-7-24 2064 Siskiyou Lily Pad Lake 1768 Comment
  SEINET516323  Mentha arvensis Vernon H. Oswald 1998-9-16 9635 Siskiyou Vista point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi E of Hwy. 97. 1244 Comment
  RSA15786  Mentzelia laevicaulis Carl B. Wolf 1927-8-26 1009 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  RSA201180  Mentzelia montana Dorothy Parker 1967-5-14 s.n. Siskiyou McConahue Gulch, Scott Valley. 1128 Comment
  SEINET8880644 Image available Mertensia ciliata Unknown 1991-5-30 Siskiyou Klamath National Forest; West branch, a Forest Service campground; 2200 feet. Comment
  CAS-BOT-BC428978  Micranthes ferruginea Ira L. Wiggins 1955-7-27 13548 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC429036  Micranthes nidifica John Thomas Howell 1980-4-30 53449 Siskiyou Yreka 792 Comment
  CAS-BOT-BC429256  Micranthes oregana Geo. D. Butler 1910-6-19 1590 Siskiyou Goosenest foothills 1524 Comment
  UC1409493  Microseris laciniata subsp. siskiyouensis Frederick W. Oettinger 1969-7-11 966 Siskiyou English Lake Trail Salmon Mountains, Marble Mountain Wilderness Area (se-facing slope, high lake basins in vicinity of English Peak, w Siskiyou Co.) 1828 Comment
  CAS-BOT-BC349375  Microseris nutans Wm. Bridge Cooke 1938-7-1 11140 Siskiyou Mount Shasta. Below Wagon Camp Comment
  CAS-BOT-BC349378  Microseris nutans Ira L. Wiggins 1955-7-27 13520 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC22288  Microseris nutans J. O. Sawyer 1969-7-3 1051 Siskiyou Near Lipstick Lake 1951 Comment
  UC829638  Microseris nutans John Thomas Howell 1937-7-22 13266 Siskiyou near Big Flat; South Fork of Salmon River 1524 Comment
  POM229878  Microseris nutans L. C. Wheeler 1935-6-13 3574 Siskiyou Shackleford Creek. Marble Mtns. 976 Comment
  HSC61928  Microsteris gracilis Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  HSC92094  Microsteris gracilis Jennifer Whipple 1976-7-2 1281 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC1586887  Mimulus Juha Pykala and D. H. Norris 1987-6-26 1981 Siskiyou n Tickner Hole; Marble Mountain Wilderness Area Comment
  JEPS25060  Mimulus alsinoides Joseph P. Tracy 1939-4-29 16272 Siskiyou Somes Bar 182 Comment
  UC164368  Mimulus breweri Geo. D. Butler 1910-7-9 1733 Siskiyou Upper Campbell Lake Shackleford Creek 1371 Comment
  UCD122461  Mimulus breweri John M. Tucker 1974-7-28 4315 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  UCR61242  Mimulus breweri Steve Morgan 1987-7-28 s.n. Siskiyou Sierra Nevada Mtns, McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, south of Mt. Shasta 1768 Comment
  HSC72392  Mimulus cardinalis J. P. Smith, Steve Selva 1970-7-16 4372 Siskiyou Along FS Rd. 19N01 Comment
  UCD77262  Mimulus guttatus Robert E. Preston 2001-6-30 1637 Siskiyou Klamath National Forest, north slope of Rainbow Mountain. 1694 Comment
  RSA237551  Mimulus guttatus Frederick W. Oettinger, Robert F. Thorne 1969-8-9 1310 Siskiyou Along trail near Young's Cabin near Abbott's Upper Cabin. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  RSA447946  Mimulus guttatus M. B. Dunkle 1944-6-25 9005 Siskiyou Siskiyou National Forest. 1677 Comment
  HSC27111  Mimulus layneae Carl W. Mize 1972-6-21 62 Siskiyou 0.25 mi. above road on WSW slope 305 Comment
  JEPS19674  Mimulus layneae Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-25 5929 Siskiyou a few mi se Weed (just w of Black Butte railway junction (S. P. Shasta Route)) 1188 Comment
  HSC39816  Mimulus lewisii J. O. Sawyer 1969-8-4 1801 Siskiyou Above Sugar Lake 2134 Comment
  JEPS11712  Mimulus microphyllus F. W. Pennell 1940-6-20 26203 Siskiyou w Bartle (Route 89) 1158 Comment
  UC1409381  Mimulus moniliformis Frederick W. Oettinger 1968-8-11 478 Siskiyou just below spring Tom Taylor Cabin (High Lakes Basin in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 2048 Comment
  HSC36465  Mimulus moschatus J. O. Sawyer 1969-8-4 1875 Siskiyou S of S Sugar Lake 2104 Comment
  UCD122797  Mimulus moschatus Jack Major; M. Fleschner, R. Pemble 1966-9-3 s.n. Siskiyou near head of Canyon Creek, east of Marble Mountain, Marble Mountains. 1645 Comment
  HSC82262  Mimulus nanus var. jepsonii Thomas W. Nelson, Jane P. Nelson 1980-7-5 5979 Siskiyou Fowler's Campground 1006 Comment
  JEPS32001  Mimulus nanus var. nanus W. B. and V. G. Cooke 1963-7-10 34263 Siskiyou n side Mt. Shasta (Bolam Road) Comment
  HSC36422  Mimulus primuloides var. primuloides J. O. Sawyer 1969-8-4 1822 Siskiyou Above Sugar Lake 2134 Comment
  JEPS4671  Mimulus pulsiferae Willis L. Jepson July, 1894 55 m Siskiyou Sisson Region of the Upper Sacramento Comment
  UC27095  Mimulus pulsiferae Milo S. Baker 1893-6 Siskiyou 6 mi below Bartles; McCloud River Comment
  RSA11895  Minuartia nuttallii subsp. fragilis Elmer I. Applegate 1923-8-18 3864 Siskiyou Top of Redshale Mountain, east of Medicine Lake. 2439 Comment
  UC1190152  Minuartia nuttallii subsp. gregaria Ira L. Wiggins 1955-4-29 13584 Siskiyou summit of ridge above Thompson Creek (trail to Caribou Lake) 1999 Comment
  UC135646  Minuartia nuttallii subsp. gregaria Dr. E. B. Copeland 1903-9-7 3870 Siskiyou Mt. Eddy 2133 Comment
  JEPS100204  Minuartia stolonifera Dean W. Taylor 2002-6-10 18120 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
  UC101220  Mirabilis greenei Thomas Howell May 1889 Siskiyou near Klamath River Comment
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Jun 12 2012
  HSC86449  Mitella diversifolia D. K. Imper 1987-6-5 Siskiyou Marble Mtn. Wilderness Area, 8 mi. E of Somes Bar 1372 Comment
  HSC86450  Mitella trifida D. K. Imper 1987-6-6 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  HSC99251  Mitella trifida G. L. Clifton 1979-7-1 6176 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  HSC75246  Moehringia macrophylla J. P. Smith 1973-5-5 6493 Siskiyou Along Cook and Green Pass Rd. Comment
  RSA0010760  Mollugo verticillata Louis C. Wheeler 1935-7-20 3676 Siskiyou Scott River 1.5 mi. W Fort Jones, Scott Valley. 823 Comment
  HSC58927  Monardella glauca Marvin Butler 1971-8-20 170 Siskiyou Near El Capitan, close to the town of Cave Junction 1585 Comment
  HSC14277  Monardella glauca R. C. Wunner 1965-6-29 299 Siskiyou Lava Beds National Monument, below upper Caldwell Ice Cave 1433 Comment
  CHSC9489  Monardella odoratissima J. F. Goodwin 1971-7-3 135 Siskiyou 5.4 mi. south of Mt. Shasta Ski Bowl area. 1798 Comment
  UCD77872  Monardella odoratissima Robert E. Preston 2001-6-23 1567 Siskiyou Klamath National Forest, n slope of Rainbow Mtn, at Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  IRVC16377  Monardella odoratissima Jerry A. Powell 1974-6-13 1158 Siskiyou Ash Creek Ranger Station. Sierra Mountains Comment
  RSA264973  Monardella odoratissima subsp. glauca G. L. Clifton 1975-7-28 7219 Siskiyou Near Cook and Green Pass near the Seiad Valley. 1646 Comment
  CAS-BOT-BC222031  Monardella odoratissima subsp. glauca G. P. Rixford No date on label s.n. Siskiyou South side of Shaft-rock [Shaft Rock] Mt., Hilt Comment
  CAS-BOT-BC222036  Monardella odoratissima subsp. glauca Doris K. Kildale 1928-7-4 5498 Siskiyou Summit of divide between Sawyers Bar & Etna Comment
  CAS-BOT-BC222163  Monardella odoratissima subsp. pallida John Thomas Howell 1939-8-2 14933 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC222170  Monardella odoratissima subsp. pallida Lewis S. Rose 1937-7-25 37587 Siskiyou S. slope of Mt. Shasta 1767 Comment
  CAS-BOT-BC222176  Monardella odoratissima subsp. pallida J. M. Tucker 1963-8-19 3785 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area 1920 Comment
  UC917237  Monardella odoratissima subsp. pallida R. Tofsrud and J. M. Tucker 1948-8-2 1757 Siskiyou Cemetery ca. 2 mi s McCloud Comment
  CAS-BOT-BC222171  Monardella odoratissima subsp. pallida Dorothy Parker 1960-7-31 764 Siskiyou Above Hidden Lake 2042 Comment
  RSA331947  Monardella odoratissima subsp. pallida Dave Kelly, Walter Wisura 1985-7-31 4088 Siskiyou Mount Shasta, end of Everitt Memorial Hwy Comment
  JEPS83877  Monardella purpurea Wayne Roderick July 1986 Siskiyou Vicinity Cook and Green Pass, along trail to Lily Pad lake. Siskiyou Mts. 1463 Comment
  SEINET10582377  Monardella siskiyouensis A. Graff 1993-7-24 Graff 354 Siskiyou Klamath National Forest. Hwy. 96, .45-2.8 miles east from junction with Hwy. 263, on right roadside. Infrequent on bare serpentine. End of bloom. Comment
  HSC33979  Montia linearis J. P. Smith 1974-5-25 7472 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  JEPS43326  Montia linearis J. W. Kisling 1910-1 Siskiyou Edgewood Comment
  UC1132354  Muhlenbergia asperifolia H. S. Yates 1936-6-21 5815 Siskiyou 6 mi n Gazelle; Yreka Quadrangle Comment
  HSC30608  Muhlenbergia filiformis Frederick W. Oettinger 1969-9-1 1575 Siskiyou Margin of Katherine Lake, Salmon Mountains. 2027 Comment
  UCD86594  Muhlenbergia filiformis Beecher Crampton 1956-8-21 3822 Siskiyou Siskiyou County, 0.25 mile northeast of Gumboot Lake. 1828 Comment
  CAS-BOT-BC275336  Muhlenbergia jonesii Ralph K. Gierisch 1968-8-6 3365 Siskiyou Elk Flat, Shasta - Trinity Forest 1310 Comment
  RSA239109  Muhlenbergia montana Frederick W. Oettinger 1969-8-16 1389 Siskiyou Southwest of Wire Grass Meadow, above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  CHSC71897  Muhlenbergia richardsonis Vernon H. Oswald; Lowell Ahart 1998-9-8 9605 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir. 1112 Comment
  HSC100332  Muhlenbergia richardsonis J. P. Smith 2011-7-15 13300 Siskiyou Off Tennant Road at a large, open borrow pit 1417 Comment
  RSA795332  Myosotis laxa L. Ahart, John Dittes 2010-7-30 16944 Siskiyou About 30 yards south of the Shasta River, about 80 yards west of the pipe across the Shasta River, about 200 yards east of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 air miles southwest of Big Springs Lake., 4.6 air miles northwest of Dwinnel Dam, 5.7 air miles southeast of Grenada. 717 Comment
  RSA45312  Myosotis scorpioides Dorothy Parker 1946-6-6 3 Siskiyou (Etna) Scott Valley. 897 Comment
  RSA576952  Myosurus Louis C. Wheeler 1934-7-2 2840 Siskiyou Little Smoky Creek, Sterling Mt., Siskiyou Mts. 1280 Comment
  JEPS93855  Myosurus sessilis Vernon H. Oswald and Lowell Ahart 1998-6-11 9222 Siskiyou 5 mi n of Macdoel (Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Road and Highway 97); Butte Valley National Grassland 1295 Comment
  CHSC33986  Nama lobbii J. D. Prouty 1979-8-22 7908221 Siskiyou E slopes of Mt. Shasta. 1950 Comment
  HSC12279  Narthecium californicum Richard Spjut 1970-7-17 450 Siskiyou 16 mi. W of Mt. Shasta at Gumboot Lake 1829 Comment
  HSC91988  Narthecium californicum Jennifer Whipple 1976-7-24 1564 Siskiyou SW of Dobkins Lake along the drainage into the lake 2226 Comment
  HSC96412  Narthecium californicum Gordon Leppig, J. Kalt 1996-7-9 366 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UCD106105  Navarretia capillaris J. M. Tucker 1974-7-28 4327 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  HSC19230  Navarretia capillaris J. O. Sawyer 1969-7-1 987 Siskiyou Above Paynes Lake Creek 1951 Comment
  RSA238002  Navarretia capillaris Frederick W. Oettinger, R. F. Thorne 1969-8-7 1265 Siskiyou Pine Lake Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1883 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
  CHSC4542  Navarretia leptalea J. E. Bowlin 1967-7-18 65 Siskiyou On roadside, ca. 6 mi w of Mount Shasta Ski Bowl. 1828 Comment
  POM73769  Nemophila pedunculata Geo. D. Butler 1910-5-7 1302 Siskiyou Fields near Yreka. Comment
  CAS-BOT-BC60571  Noccaea fendleri subsp. glauca Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Trinity Mountains. Gumboot Lake. 1828 Comment
  HSC81568  Noccaea fendleri subsp. glauca Thomas W. Nelson, Jane P. Nelson 1980-7-17 6075 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  CAS-BOT-BC60577  Noccaea fendleri subsp. glauca Mrs. H. C. Cantelow 1936-5-21 s.n. Siskiyou On north slope of Scott Mountain. 1524 Comment
  CAS-BOT-BC210244  Nothochelone nemorosa Dana York 2011-9-9 3101 Siskiyou Marble Mountain Wilderness. Klamath National Forest, boundary of Marble Mountain Wilderness adjacent to Isinglass Lake 1990 Comment
  UC1238904  Nothochelone nemorosa Freed W. Hoffman 1951-7-15 4026 Siskiyou near Packers' Valley (North Coast Ranges, Marble Mountain); North Coast Ranges, Marble Mountain Comment
  NY790540  Nothochelone nemorosa J. P. Tracy 1935-8-1 14420 Siskiyou Head of Knownothing Creek. 1 mile northeast of Summit Mine, 3 miles southeast of Salmon Summit. 1767.8 Comment
  SEINET184866 Image available Nuphar lutea subsp. polysepala C. L. Hitchcock, J. S. Martin 1939-1 5273 Siskiyou Whiskey Lake, 0.5 mi above Camp Chicago, on Sanger Peak Trial 1463 Comment
  HSC29309  Nuphar polysepala Frederick W. Oettinger 1969-8-1 1139 Siskiyou Marble Mtn. Wilderness Area, English Lake near inlet 1753 Comment
  UC164310  Oenothera villosa subsp. strigosa Geo. D. Butler 1910-7-30 1799 Siskiyou Yreka Creek Comment
  HSC35067  Olsynium douglasii var. douglasii J. P. Smith 1974-5-25 7648 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  HSC96301  Oreostemma alpigenum Gordon Leppig 1998-8-14 1013 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  HSC96420  Oreostemma alpigenum Gordon Leppig, J. Kalt 1996-7-9 369 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SEINET8225553  Oreostemma alpigenum J. Kierstead 1990-7-18 90 -103 Siskiyou Mt. Shasta Ranger Dist.; Gumboot Creek, south side of Mt. Eddy, 100 yards wouth of Forest Service Rd. 40N26. 1676 Comment
  SEINET8245378  Oreostemma alpigenum A. A. Heller 1915-8-26 12225 Siskiyou Heather meadow near the head of Wagon creek canyon; Mt. Eddy. 2591 Comment
  HSC29217  Oreostemma alpigenum var. andersonii Frederick W. Oettinger 1968-8-1 339 Siskiyou High Lake Basins near English Peak: Marble Mtn. Wilderness Area; S of Little Hancock Lake 2043 Comment
  RSA0076584  Orobanche fasciculata Frederick W. Oettinger 1968-8-16 530 Siskiyou S-facing slope of Little Medicine Mountain near the open summit, due north of Hancock Lake. Comment
  RSA0059264  Orobanche uniflora subsp. occidentalis Albert M. Vollmer, Lawrence Beane 1951-5-31 12 A Siskiyou On scree near highway, Scott Mountain. Comment
  SD230221  Orthilia secunda Louis C. Wheeler 1959-7-25 7594 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  UC933403  Orthilia secunda Annie M. Alexander and Louise Kellogg 1948-9-8 5604 Siskiyou Top of grade beteween Sawyers Bar and Etna 1706 Comment
  RSA0083190  Orthilia secunda Frederick W. Oettinger 1967-8-3 233 Siskiyou Slope leading down from Little Hancock Lake to Hancock Lake. The Salmon Mtns. High lake basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1982 Comment
  CHSC20419  Orthocarpus cuspidatus subsp. copelandii L. M. Mayer 1974-7-1 308 Siskiyou Along ridgetop, se of Shadow Lake. Marble Mountain Primitive Area. Comment
  UC2026467  Orthocarpus cuspidatus subsp. copelandii Louis C. Wheeler 1958-8-21 7412 Siskiyou Siskiyou Mountains. Lily Pad Lake. Comment
  UC718019  Orthocarpus cuspidatus subsp. copelandii Carl B. Wolf 1934-7-4 5938 Siskiyou 13.5 mi from Horse Creek Bridge (Horse Creek--Dry Lake Lookout); Siskiyou Mountains, Klamath River, Horse Creek, Dry Lake 1524 Comment
  UCD123234  Orthocarpus cuspidatus subsp. copelandii J. M. Tucker; L. K Mann 1963-8-17 3741 Siskiyou beside trail from Red Rock Valley to top of ridge to south, and near top of ridge, Marble Mountain Wilderness Area. 1859 Comment
  JEPS101144  Orthocarpus pachystachyus Dean W. Taylor 1996-6-18 15721 Siskiyou Scott Mountains; bordering Shasta Valley, base of hillslopes about 4 miles south of Gazelle, about 100 meters upslope from the Yreka Ditch 960 Comment
  HSC58840  Osmorhiza occidentalis Butler 1971-7-7 42 Siskiyou Near El Capitan 1464 Comment
  HSC83920  Oxyria digyna K. Berg, Stephanie Bennett 1986-8-25 647 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little S Fork of Salmon River, above Little S Fork Lake 1982 Comment
  HSC30484  Oxyria digyna Frederick W. Oettinger 1969-8-25 1543 Siskiyou NE facing slope above Tanner Peak Trail, 400 yards down from English Peak Trail. 2134 Comment
  HSC61135  Oxyria digyna Al Hobart Jul 1967 Siskiyou El Capitan Comment
  CAS-BOT-BC316757  Packera cana Peter Hamilton Raven 1956-9-4 10390 Siskiyou pass just south of Mt. Eddy 2438 Comment
  CHSC71285  Packera cana Vernon H. Oswald; Lowell Ahart 1998-6-11 9175 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
  JEPS82265  Packera cana Roger Raiche 1983-8-13 30594 Siskiyou near summit Mt. Eddy 2743 Comment
  CAS-BOT-BC316753  Packera cana William Bridge Cooke 1940-8-22 15478 Siskiyou A medium sized colony occurs near the upper limits of the Hudsonian Zone along the west rim of Mud Creek Canyon 2743 Comment
  CAS-BOT-BC94880  Parnassia californica R. C. Wenk 2006-9-3 564 Siskiyou Coffee Creek Road, Big Flat Meadow, S end of meadow above S Fork of Salmon River 1508 Comment
  HSC41129  Paspalum distichum J. P. Smith, Steve Selva 1970-7-17 4432 Siskiyou Along Klamath River Comment
  JEPS46471  Pastinaca sativa Rimo Bacigalupi 1959-7-1 7210 Siskiyou along irrigation ditch in front of Mt. Shasta Union High School (outskirts of town); Mt. Shasta (town) 1097 Comment
  CAS-BOT-BC202835  Paxistima myrsinites John Thomas Howell 1937-7-23 13369 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC202838  Paxistima myrsinites Roxana S. Ferris; Laura Lorraine 1948-6-12 117722 Siskiyou About 7 miles from Etna on Forks of Salmon Road 1818 Comment
  CAS-BOT-BC202855  Paxistima myrsinites Doris K. Kildale 1928-7-4 5517 Siskiyou Summit of divide between Sawyers Bar & Etna Mills Comment
  RSA237270  Paxistima myrsinites Frederick W. Oettinger 1969-8-1 1137 Siskiyou Between English Lake and Wire Grass Meadow. English Lake Basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC1045278  Paxistima myrsinites W. Bridge Cooke 1940-6-6 15035 Siskiyou along Castle Lake Rd. Castle Lake Rd. Comment
  HSC91147  Pedicularis attollens Jennifer Whipple 1976-7-15 1486 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2317 Comment
  SEINET10549151  Pedicularis attollens Mary Susan Taylor 1980-7-22 Taylor 3172 Siskiyou T40N R7W ne sec 32, China Mt quad. Klamath Natl Forest, along creek and meadow, ca. 0.1 mi SW of Big Carmen Lake, on S side of rd 40N08, ca. 2.3 mi NE of its jct with Hwy 3 at Scott Mt summit. 1737 Comment
  UC618752  Pedicularis densiflora W. Bridge Cooke 1938-6-24 11098 Siskiyou Mount Shasta 1524 Comment
  HSC61870  Pedicularis howellii Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  HSC4830  Pedicularis racemosa J. O. Sawyer 1968-9-10 677 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  JEPS83838  Pedicularis racemosa Wayne Roderick July 1976 Siskiyou vicinity of Cook and Green Pass; Siskiyou Mountains 1463 Comment
  RSA12627  Pedicularis racemosa Carl B. Wolf 1934-7-5 5958 Siskiyou 6.8 miles from Dry Lake Lookout on rd to Horse Creek, Siskiyou Mts. 1829 Comment
  UC922343  Pedicularis racemosa Annie M. Alexander and Louise Kellogg 1949-7-22 5848 Siskiyou above lake under Mount Hemlock (at Sky High Valley); Marble Mountains, Paradise Lake 1920 Comment
  UCR131622  Pedicularis racemosa L. C. Wheeler 1934-6-7 2659 Siskiyou Siskiyou Mountains, North Hungry Creek 1311 Comment
  RSA425340  Pedicularis racemosa Louis C. Wheeler 1934-8-2 3021 Siskiyou Siskiyou Mountains: Head of Jaynes Canyon. 2073 Comment
  CHSC118024  Pedicularis racemosa var. racemosa K. M Meyer; A. Townesmith 2007-7-31 181 Siskiyou Shasta Trinity National Forest. 8.1 mi. on NF Rd. 17, off US Hwy. 97. Coniferous forest, steep rocky slope, small waterfall. 1607 Comment
  CAS-BOT-BC67682  Pellaea brachyptera Alice Eastwood 1912-8-30 2092 Siskiyou Mount Eddy Comment
  RSA0006214  Penstemon W. C. Cusick 1902-1 2928 Siskiyou Siskiyou Mts., Waldo-Crescent City rd., 1/4 mi. S. of Cal. Line [Siskiyou or Del Norte counties]. Comment
  JEPS84306  Penstemon anguineus L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6404 Siskiyou ca 5 mi n of the town Seiad Valley; Cirque at head Hell's Canyon, n of Seiad Valley 1750 Comment
  POM42969  Penstemon anguineus Geo. D. Butler 1910-7-9 1733 Siskiyou Upper Campbell Lake, Shackleford Creek. 1372 Comment
  RSA331964  Penstemon anguineus Walter Wisura, Dave Kelly 1985-7-30 4073 Siskiyou Along forestry road 47N63 near Siskiyou Summit, N of Horse Creek on Hwy 96. Comment
  RSA17738  Penstemon cinereus Elmer I. Applegate 1935-6-2 9268 Siskiyou Indian Wells; Lava Beds Nat'l Monument Comment
  UCSB51240  Penstemon davidsonii Almanza, Ed 1976-7-13 Siskiyou The "Gate" pass; Mt. Shasta 2438 Comment
  SFV17485  Penstemon davidsonii var. davidsonii P. Wilson 1998-7-21 3543 Siskiyou Mount Shasta. Sand Flat. 2073 Comment
  UCSB23751  Penstemon deustus Breedlove, Dennis 1962-6-10 Siskiyou On the north bank of the Klamath River at its junction with Goff Creek; 4.5 miles west of Seiad 411 Comment
  CHSC1860  Penstemon deustus var. pedicellatus N. Jaekal; K. Jaekal 1930-7-10 Siskiyou Weed. 1056 Comment
  NY609840  Penstemon deustus var. suffrutescens A. A. Heller 1905-6-8 7998 Siskiyou Yreka Comment
  UC618804  Penstemon deustus var. suffrutescens David D. Keck 1938-6-17 11043 Siskiyou Sisson Southern Trail Mount Shasta, Sisson Southern Trail (on the lava outcropping along the trail) Comment
  UC313696  Penstemon gracilentus David D. Keck 1927-8-16 305 Siskiyou 4 mi e Mt. Shasta City (Sisson) (on w flank of Mt. Shasta); w flank of Mt. Shasta, e of Mt. Shasta City (Sisson) 1609 Comment
  UC479134  Penstemon gracilentus Marcus E. Jones, A. M. 1931-7-17 28827 Siskiyou Session's Shasta City (Session's) [= Sissons] (Shasta City) Comment
  UCSB15834  Penstemon heterodoxus var. shastensis Breedlove, Dennis 1962-6-11 Siskiyou along State Highway 89; 17.6 miles east of McCloud; Cascade Mountains 1219 Comment
  CDA33280  Penstemon heterodoxus var. shastensis T. C. Fuller 1963-6-13 8993 Siskiyou South side of Hwy 89 to Lake Britton, 0.5 mile east of Bartle 0 Comment
  UC229876 Image available Penstemon laetus H. E. Brown Jun 11 1897-Jun 16 1897 360 Siskiyou n side Mt. Shasta; ; Mt. Shasta, Siskiyou Co. 1524 Comment
  HSC86525  Penstemon laetus D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  HSC67796  Penstemon laetus subsp. sagittatus J. O. Sawyer, J. Cole 1980-7-22 4000 Siskiyou Little Horse Peak 1720 Comment
  CHSC83277  Penstemon laetus var. sagittatus L. P. Janeway 2002-7-13 7646 Siskiyou High Cascade Range. Along a logging spur road 0.2 km southeast of Road 13 (Pilgrim Creek Road) 9.0 km northeast of the Military Pass Road (Road 19); 0.2 km north of Edison Creek. 1347 Comment
  NY604547  Penstemon laetus var. sagittatus F. W. Pennell 1940-7-20 26198 Siskiyou Fowlers Camp, 5-6 miles southeast of McCloud 1005.8 Comment
  POM252934  Penstemon laetus var. sagittatus A. A. Heller 1938-7-12 15256 Siskiyou Along HS Hwy 97, 16 miles northeast of Weed. Comment
  UC1222781  Penstemon laetus var. sagittatus Joseph P. Tracy 1950-7-18 19218 Siskiyou Prospect Hills Prospect Hill (thence to Elk Valley) ((thence to Elk Valley)) 1097 Comment
  UC1238952  Penstemon laetus var. sagittatus Freed W. Hoffman 1948-7-8 2566 Siskiyou on Klamath River road 19.7 mi e Happy Camp; North Coast Ranges, Klamath River Road Comment
  RSA68868  Penstemon newberryi subsp. newberryi A. E. Culbertson 1943-6-24 88 Siskiyou Castle Lake, 5434', in a north facing cirque with an abrupt 1000' backwall, 14 miles SW 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
  CAS-BOT-BC239339  Penstemon newberryi var. berryi A. A. Heller 1905-6-16 8048 Siskiyou Near Sisson Comment
  CAS-BOT-BC239344  Penstemon newberryi var. berryi Alice Eastwood 1912-7-19 1230 Siskiyou Mount Shasta Comment
  JEPS84079  Penstemon newberryi var. berryi L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6354 a Siskiyou 1/2 mi SE of Red Butte (SW of Cook and Green Pass; 7 mi NNE of Seiad Valley) 1730 Comment
  CHSC96010  Penstemon parvulus L. P. Janeway 2006-7-3 8764 Siskiyou Klamath Ranges. Salmon Mountains; along Music Creek Trailhead Road about 1.5 km west of upper crossing of Music Creek. 1646 Comment
  HSC81519  Penstemon parvulus Thomas W. Nelson, Jane P. Nelson 1980-7-20 6168 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  UC1408760  Penstemon parvulus Frederick W. Oettinger 1968-8-16 539 Siskiyou w side of Red Hill near Hancock Lake ((The high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area), Western Siskiyou County); Salmon Mountains, w side Red Hill nr Hancock Lake 2057 Comment
  UC1408801  Penstemon procerus Robert F. Thorne and Fred Oettinger 1969-8-10 38971 Siskiyou s slope of, (at Panther Creek Meadows) Mt. Shasta; Mt. Shasta National Forest, Panther Creek Meadows 2194 Comment
  NY638947  Penstemon procerus var. brachyanthus F. W. Pennell 1940-7-17 26180 Siskiyou Above Ruffy Lake, Salmon Mountains, west of Etna 1981.2 Comment
  HSC91096  Penstemon procerus var. formosus Jennifer Whipple 1976-7-7 1329 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2378 Comment
  HSC21100  Penstemon purpusii William J. Ferlatte 1967-6-8 672 Siskiyou Yellow Rose Mine Trail 1677 Comment
  CAS-BOT-BC94418  Penstemon roezlii R. C. Wenk 2005-7-15 234 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail 2042 Comment
  RSA50197  Penstemon roezlii E. K. Balls 1949-7-8 13907 Siskiyou Trail from Scott Mountain Camp to Carmen Lake, Scott Mt. 1753 Comment
  UC722467  Penstemon rupicola C. L. Hitchcock and J. S. Martin 1939-7-6 5231 Siskiyou on Takilma - Happy Camp road (peak above and n of Divide of Siskiyou Mts.); peak above and n of Divide of Siskiyou Mts. 1828 Comment
  RSA12669  Penstemon speciosus Carl B. Wolf 1934-7-6 6025 Siskiyou West side of Mt Shasta, along Snowline road, 3.3 miles from Mt. Shasta City 1524 Comment
  SEINET9615222 Image available Perideridia leptocarpa L. Constance, T. I & Fei-Mei Chuang, M. Sousa S. 1966-1 Siskiyou Cecilville, 5 miles nw of Cecilville 762 Comment
  HSC29421  Perideridia parishii subsp. latifolia Frederick W. Oettinger 1968-8-12 493 Siskiyou Just N of Tobacco Lake along the trail from the W end of Hancock Lake 1890 Comment
  CAS-BOT-BC419261  Persicaria maculosa Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch, at Roger's Creek, Somes Bar Comment
  CAS-BOT-BC330263  Petasites frigidus var. palmatus H. A. Thomas; J. H. Thomas 1954-7-23 4469 Siskiyou Salmon - Trinity Mts. Abouty 6 miles SE of Cecilville. Vicinity of Blind Horse Creek. 1036 Comment
  UCD127950  Petroselinum crispum Verne Grant; Irving Schneider 1947-8-25 8279 Siskiyou West side of Tule Lake. Comment
  HSC68991  Phacelia corymbosa Maralyn A. Renner 1980-7-28 2171 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  UC164114  Phacelia corymbosa Geo. D. Butler 1910-5-4 1280 Siskiyou dry hill near Yreka Comment
  HSC93605  Phacelia dalesiana Dorothy Parker 1965-6-1 640 Siskiyou Scott Mtn. 1631 Comment
  POM265888  Phacelia egena Lincoln Constance, R. C. Rollins 1942-5-14 2928 Siskiyou Shasta River, 4 miles north of Yreka. 762 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
  HSC65581  Phacelia hastata R. White 1977-7-1 93 Siskiyou Top of Sawtooth Mtn. 1761 Comment
  UC54516  Phacelia hastata H. M. Hall and E. B. Babcock June, 1903 4111 Siskiyou Ash Creek Sierra Nevada Mountains, Mount Shasta 1524 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
  HSC97692  Phacelia linearis Thomas W. Nelson, Jane Nelson 2006-7-1 9449 Siskiyou Along USFS Rd. 4319, Military Pass Rd., The Whaleback 1392 Comment
  JEPS2132  Phacelia linearis Geo. D. Butler 1909-5-4 742 Siskiyou near (n of) Yreka; Klamath River Comment
  SEINET3158192  Phacelia magellanica f. virgata G. D. Butler 1910-5-22 1386 Siskiyou Yreka Creek Comment
  HSC69027  Phacelia mutabilis Maralyn A. Renner 1980-7-28 2186 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  RSA12501  Phacelia mutabilis Carl B. Wolf 1934-7-4 5935 Siskiyou Horse Creek Rd. to Dry Lake Lookout, Siskiyou Mts. 13.5 mi. from Horse Creek Bridge on Klamath River. 1524 Comment
  UC1057506  Phacelia pringlei Milo S. Baker 1957-6-16 13128 Siskiyou Scott Mt. 1767 Comment
  SEINET12280311  Phacelia pringlei Unknown 1953-1 105 Siskiyou Cabin Meadow, 1 mi N of Cory Peak, Klamath National Forest 1844 Comment
  JEPS1089  Phacelia procera Geo. D. Butler 1908-8-9 14 Siskiyou camp below Marble Mountain 1676 Comment
  CAS-BOT-BC77417  Philadelphus lewisii Carl B. Wolf 1927-8-26 1044 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  CAS-BOT-BC77425  Philadelphus lewisii Gilbert Muth 1965-8-3 s.n. Siskiyou Down creek from Marble Valley Comment
  CHSC32702  Philadelphus lewisii J. P. Smith; Steve Selva 1970-6-14 3890 Siskiyou 1 mile east of Steinacher Creek road on road to Forks of Salmon. Comment
  JEPS84271  Philadelphus lewisii L. R. Heckard with J. Hickman, S. D'Alcamo 1986-7-17 6482 Siskiyou e Cook and Green Pass (s ridge of butte); Copper Butte 1584 Comment
  UC11453  Philadelphus lewisii M. A. Howe Jul 24 1894-Aug 10 1894 Siskiyou river bank near Sims; Region of the Upper Sacramento Comment
  CAS-BOT-BC77411  Philadelphus lewisii Ira L. Wiggins 1955-7-21 13431 Siskiyou Small gulch on Rush Creek Trail 1.5 mi. above Mt. View Ranch 1036 Comment
  CAS-BOT-BC77431  Philadelphus lewisii Doris K. Kildale; J. W. Gillespie 1929-6-22 8029 Siskiyou Boulder Creek, 2 mi. north of Moine and south of Dunsmuir Comment
  NY186333  Philadelphus platyphyllus H. E. Brown 1897-7-1 562 Siskiyou South side of Mount Shasta 1524.0 Comment
  CAS-BOT-BC250951  Phleum pratense Doris K. Kildale 1928-8-18 6487 Siskiyou Near head of north fork of Salmon River at Finley's Upper Camp 1828 Comment
  UC106962  Phlox austromontana Harley P. Chandler Jun 1901 1591 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  HSC113  Phlox diffusa William J. Ferlatte 1966-6-23 128 Siskiyou Yellow Rose Mine 1982 Comment
  JEPS74453  Phlox diffusa W. J. Ferlatte 1966-6-23 128 Siskiyou Yellow Rose Mine Trinity Alps 1981 Comment
  SD114161  Phlox diffusa Darley F. Howe 1979-6-26 5110 Siskiyou Military Pass Road, 19 miles east of Highway 97. 1768 Comment
  RSA237975  Phlox diffusa subsp. subcarinata Frederick W. Oettinger 1969-7-10 964 Siskiyou South of Upper English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1921 Comment
  JEPS104868  Phlox hirsuta Dean W. Taylor 1996-5-29 15637 Siskiyou Highway 3 about 4 miles east of southern edge Yreka; Soap Creek Ridge 822 Comment
  UC572311  Phlox hoodii subsp. canescens W. H. Mitchell 1936-5-8 Siskiyou Base of Schonclim Butte Dorris Quad. 1432 Comment
  HSC81763  Phlox speciosa subsp. occidentalis Thomas W. Nelson, Jane P. Nelson 1980-7-20 6170 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  UC585233  Phlox speciosa subsp. occidentalis E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1915 Siskiyou about 7 mi sw Yreka (Forest House Mt., s of highway from Yreka to Fort Jones); Forest House Mt. 1371 Comment
  CAS-BOT-BC60683  Phoenicaulis cheiranthoides Marion Ownbey; Ruth P. Ownbey 1938-7-19 1752 Siskiyou Summit of the Siskiyou Mountains, 2.5 miles northwest of Dry Lake Lookout. Comment
  UCD77915  Phoenicaulis cheiranthoides Robert E. Preston 2002-6-20 1861 Siskiyou Klamath National Forest, Rainbow Mountain W ridge, on E-facing slope 1960 Comment
  CAS-BOT-BC135025  Phoradendron bolleanum Alice Eastwood 1922-10-23 11559 Siskiyou Yreka Comment
  UC163742  Phoradendron villosum Geo. D. Butler 1908-7-4 276 Siskiyou Shasta R. Comment
  CAS-BOT-BC250993  Phragmites australis Louis C. Wheeler 1934-10-21 3335 Siskiyou Shasta Valley 4 miles E Grenada 868 Comment
  UCR168480  Phragmites australis L. C. Wheeler 1934-10-21 3335 Siskiyou Shasta Valley, 4 miles east of Grenada 869 Comment
  CAS-BOT-BC56484  Phyllodoce empetriformis G. J. Muth 1969-8-10 1324 Siskiyou Ridge w. of Boulder Peak 2286 Comment
  CAS-BOT-BC56496  Phyllodoce empetriformis Douglas Barbe 1955-7-26 286 Siskiyou on the north slope of Scott Mtn. 1981 Comment
  CAS-BOT-BC56503  Phyllodoce empetriformis J. W. Congdon 1900-8-13 s.n. Siskiyou Mt. Shasta Comment
  JEPS40854  Phyllodoce empetriformis Paul C. Hutchison 1962-8-2 941 Siskiyou Mount Shasta, between Panther Meadow and top of ski lift Mount Shasta 2621 Comment
  JEPS66653  Phyllodoce empetriformis Joseph P. Tracy 1935-8-1 14406 Siskiyou at extreme head of West Fork Knownothing Creek (on ridge between Salmon and New Rivers, Rock Lake); Rock Lake, West Fork Knownothing Creek 1889 Comment
  POM77480  Phyllodoce empetriformis Geo D. Butler 1910-7-8 1686 Siskiyou Shackleford Creek. 1829 Comment
  RSA105410  Phyllodoce empetriformis G. D. Barbe 1955-7-26 286 Siskiyou Among dry rocks at a small pond on the N slope of Scott Mtn. 1982 Comment
  RSA211460  Phyllodoce empetriformis William J. Ferlatte 1966-8-5 352 Siskiyou Caribou Mtn. 2470 Comment
  UC1190116  Phyllodoce empetriformis Ira L. Wiggins 1955-7-27 13543 Siskiyou Salmon-Trinity Alps Primitive Area, Caribou Lake Caribou Lake; Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  CAS-BOT-BC210239  Physaria occidentalis subsp. occidentalis Dana York 2011-8-12 3040 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  CAS-BOT-BC228582  Picea breweriana Peter W. Fritsch; James R. Shevock; Lu Lu 2012-6-20 1935 Siskiyou Russian Wilderness, Klamath National Forest. Along Sugar Creek Trail to Sugar Lake from trailhead off forest road 41N14 1755 Comment
  CAS-BOT-BC73429  Picea breweriana T. H. Harris 1951-5-30 s.n. Siskiyou Tanner Butte Road, near Happy Camp. 1828 Comment
  HSC24697  Picea breweriana J. O. Sawyer 1969-7-26 1573 Siskiyou SE facing slope near S Sugar Creek 1700 Comment
  JEPS46725  Picea breweriana W. L. Jepson 1907-7-6 Siskiyou 2 mi w Marble Mt. (at head of stream flowing into Klamath) Comment
  CAS-BOT-BC78159  Picea breweriana W. R. Dudley 1899-7-6 s.n. Siskiyou South slope Siskiyou Big Meadow Comment
  CAS-BOT-BC73396  Pinus albicaulis John Thomas Howell 1937-7-24 13436 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC31987  Pinus albicaulis Steve Selva, Roger Jensen 1974-8-25 54 Siskiyou Top of slopes W of Little Duck Lake Comment
  JEPS47896  Pinus attenuata W. L. Jepson 1907-7-9 2865 Siskiyou s of Putnam Peak (Klamath Range, e slope, seedlings taken from near fire-killed trees); Klamath Range Comment
  RSA126257  Pinus attenuata I. L. Wiggins 1955-7-24 13485 Siskiyou Ridge between upper reaches of China Creek and Blind Horse Creek. 1463 Comment
  UC1409508  Pinus attenuata Frederick W. Oettinger 1968-9-3 685 Siskiyou talus slope on ridge nw of Horse Range Lake (w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 2011 Comment
  RSA215637  Pinus balfouriana Gilbert Muth 1969-8-10 1355 Siskiyou Ridge W of Boulder Peak. 2287 Comment
  CAS-BOT-BC78776  Pinus lambertiana Doris K. Kildale 1929-7-20 8675 Siskiyou Raspberry Lake, near east spur Preston Peak Comment
  CAS-BOT-BC78783  Pinus lambertiana Ira L. Wiggins 1955-7-24 13496 Siskiyou Ridge betw. upper reaches of China & Blind Horse Creeks 1645 Comment
  CAS-BOT-BC72863  Pinus ponderosa Carl B. Wolf 1927-8-26 1060 Siskiyou On the Klamath River, 3 mi. below Gottville. Comment
  CHSC2354  Piperia unalascensis 1936-6-26 Siskiyou Mt. Shasta City. 1097 Comment
  RSA184715  Pityopus californicus Gilbert Muth 1966-7-29 465 Siskiyou Marble Valley, by waterfall, Marble Mountains. 1796 Comment
  CAS-BOT-BC228036  Plagiobothrys Geo. D. Butler 1909-4-13 654 Siskiyou Near [Yreka?] Comment
  JEPS107412  Plagiobothrys bracteatus Lowell Ahart, John Dittes 2005-6-9 12035 Siskiyou Meadow area along a small drainage, about 50 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
  POM72946  Plagiobothrys bracteatus Geo. D. Butler 1910-5-29 1424 Siskiyou Near Yreka. Comment
  POM72154  Plagiobothrys greenei Geo. D. Butler 1909-4-30 668 Siskiyou Yreka Comment
  CAS-BOT-BC231009  Plagiobothrys hispidulus John Thomas Howell 1937-7-22 13331 A Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  HSC46118  Platanthera dilatata var. leucostachys J. P. Smith, Steve Selva 1970-6-14 3883 Siskiyou Road to Steinacher Creek near Somes Bar. Comment
  UCD77918  Platanthera dilatata var. leucostachys Robert E. Preston 2001-7-20 1694 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1755 Comment
  HSC35439  Platanthera dilatata var. leucostachys A. Montalvo, J. D. Ackerman 1975-7-18 583 Siskiyou S Fork Sacramento River, FS 40N30 1372 Comment
  HSC61842  Platanthera dilatata var. leucostachys Al Hobart 1967-1 Siskiyou Poker Flat 1585 Comment
  UC1409487  Platanthera leucostachys Frederick W. Oettinger 1968-8-7 442 Siskiyou High Lake Basins in vicinity English Peak (Salmon Mountains); , Marble Mountain Wilderness Area 1889 Comment
  UC14944  Platanthera leucostachys Harley P. Chandler 1901-6-1 1726 Siskiyou near Marble Mountain (North Coast Ranges); North Coast Ranges 1828 Comment
  HSC68340  Platanthera sparsiflora Maralyn A. Renner 1980-7-4 1429 Siskiyou Clear Creek Trail, N of Trout Camp. 1067 Comment
  UC1045261  Platanthera sparsiflora W. Bridge Cooke 1940-7-7 15277 Siskiyou Wagon Camp Mount Shasta 1737 Comment
  HSC61294  Platanthera sparsiflora Ruby Van Deventer 1960-7-14 Siskiyou Flint Valley Comment
  POM208361  Plectritis congesta subsp. brachystemon Louis C. Wheeler 1934-6-4 2632 Siskiyou Hamburg Gulch off Horse Creek. (Mt. Diablo Mer.) Siskiyou Mts. 610 Comment
  UC1540013  Plectritis macrocera M. Mitchell 1936-5-8 2 Siskiyou 2 mi e of Schonchin Butte (Lava Beds National Monument); Lava Beds National Monument 1371 Comment
  UC164413  Plectritis macrocera Geo. D. Butler 1909-3-27 664 Siskiyou near Oro Fino Comment
  CAS-BOT-BC326711  Pleiacanthus spinosus C. E. Berry 1940-1-1 s.n. Siskiyou Unspecified Comment
  CAS-BOT-BC458194  Pleuricospora fimbriolata Wm. Bridge Cooke 1938-8-5 11460 Siskiyou Mount Shasta: Sisson Southern Trail 1828 Comment
  RSA484227  Poa M. B. Dunkle 1945-1 9325 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  CAS-BOT-BC254615  Poa X limosa David D. Keck 1949-7-19 6343 Siskiyou 2 miles S of Grenada, long RR right-of-way 777 Comment
  CAS-BOT-BC254618  Poa X limosa John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-28 53382 Siskiyou 2.5 miles S of Grenada, Shasta Valley 762 Comment
  UC820697  Poa bulbosa Louis C. Wheeler 1935-6-1 3536 Siskiyou Yreka Creek; Siskiyou Mts 853 Comment
  CAS-BOT-BC255055  Poa compressa L. P. Janeway 1983-8-26 600 Siskiyou Siskiyou Mountains. At Poker Flat, front edge of the upper part of the meadow 1524 Comment
  CHSC61584  Poa compressa L. P. Janeway 1983-8-26 599 Siskiyou Siskiyou Mountains; at Poker Flat, front edge of upper part of a meadow. 1524 Comment
  HSC36750  Poa compressa J. P. Smith 1974-5-25 7404 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  JEPS72963  Poa compressa W. L. Jepson 1940-7-3 20104 Siskiyou 5 mi se Bartle (Big Bear Flat) 1219 Comment
  SEINET234712 Image available Poa fibrata Louis C. Wheeler 1935-6-30 3629 Siskiyou 3 miles south of Grenada Shasta Valley 790 Comment
  SACT001940  Poa pratensis G. Kimber 1934-6-9 Siskiyou 1/8 mile above junction with Sacramento River. Comment
  CHSC91252  Poa pratensis subsp. pratensis Lowell Ahart; John Dittes 2005-6-9 12033 Siskiyou Hill, along a rock fence, about 100 yards southeast of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CAS-BOT-BC247523  Poa pringlei Wm. Bridge Cooke 1939-7-26 13755 Siskiyou Mount Shasta. Below Lake Helen on the Summit Trail 3048 Comment
  CAS-BOT-BC443956  Poa pringlei Dana York 2012-7-21 3142 Siskiyou Siskiyou Mountains. Klamath National Forest, Siskiyou Mountains, a few meters below summit of Red Butte. 2040 Comment
  RSA239018  Poa secunda Frederick W. Oettinger 1969-9-2 1594 Siskiyou north side of English Peak. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  CAS-BOT-BC237718  Poa secunda subsp. juncifolia Alice Eastwood 1921-7-24 10768 Siskiyou Castle Lake Comment
  HSC76922  Poa secunda subsp. juncifolia K. T. Stillman 1976-6-26 135 Siskiyou Marble Mountain Wilderness Area, Kings Castle. 2134 Comment
  CAS-BOT-BC243215  Poa secunda subsp. secunda John Thomas Howell 1939-8-2 14912 Siskiyou Spirit Lake, Marble Mountains 1828 Comment
  CAS-BOT-BC243218  Poa secunda subsp. secunda A. A. Heller 1919-6-25 13266 Siskiyou Compton's prairie, N base of Mount Eddy 1158 Comment
  CAS-BOT-BC243241  Poa secunda subsp. secunda Gilbert J. Muth 1969-8-6 1213 Siskiyou Boulder Peak Comment
  UC1055818  Poa secunda subsp. secunda Frank W. Gould 1940-5-15 1234 Siskiyou Lower Bull Meadow Goosenest Mt Comment
  UC196956  Poa secunda subsp. secunda Geo. D. Butler 1910-4-19 1200 Siskiyou Yreka Comment
  UCD90998  Poa secunda subsp. secunda Frank W. Gould 1940-5-15 1234 Siskiyou Lower Bull Meadow, Goosenest Mountain. Comment
  JEPS100989  Pogogyne zizyphoroides Dean Wm. Taylor with Glenn Clifton 1990-6-12 10870 Siskiyou Adobe Flat Reservoir, ca. 5 miles N of Timbered Crater, 1075 Comment
  CHSC96026  Polemonium californicum L. P. Janeway 2006-7-3 8754 Siskiyou Klamath Ranges. Salmon Mountains; along Music Creek Trailhead near upper Music Creek. 1893 Comment
  JEPS69921  Polemonium californicum Geo. D. Butler 1908-8-8 29 Siskiyou foot of bluff Marble Valley 1676 Comment
  POM75554  Polemonium californicum Geo D. Butler 1910-7-9 1717 Siskiyou Marble Mountain. 1829 Comment
  CAS-BOT-BC231351  Polemonium pulcherrimum John Thomas Howell 1937-7-24 13377 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC231356  Polemonium pulcherrimum Wm. Bridge Cooke 1940-7-26 15381 Siskiyou Mount Shasta. On the west side of Shastina above Merriam's timberline Comment
  NY337078  Polemonium tricolor H. P. Chandler 06 1901 1671 Siskiyou Marble Mountain 2438.4 Comment
  CAS-BOT-BC74164  Polyctenium fremontii H. Lewis 1940-1-1 1901 Siskiyou At edge of Grass Lake. 1219 Comment
  UCD115149  Polyctenium fremontii Wm. E. Moon 1958-5-29 s.n. Siskiyou State Highway 97, southwest of Hebron summit. 1524 Comment
  CAS-BOT-BC170330  Polygala cornuta var. cornuta H. A. Thomas; J. H. Thomas 1954-7-21 4398 Siskiyou Salmon-Trinity Mts. about 6 miles SE of Cecilville. West side of Rush Creek. 1158 Comment
  UC484058  Polygala cornuta var. cornuta Carl B. Wolf 1930-10-22 1756 Siskiyou along Pacific Highway 3 mi n Mt. Shasta City 1219 Comment
  RSA273321  Polygonum buxiforme J. P. Smith, J. O. Sawyer 1972-9-14 5807 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  RSA237763  Polygonum convolvulus Frederick W. Oettinger 1969-8-24 1530 Siskiyou Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1829 Comment
  UC55516  Polygonum convolvulus T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  SEINET3160402  Polygonum davisiae M. S. Baker sn Siskiyou Mt. Shasta; Ash Creek above Warren & Anderson's Mill Comment
  CAS-BOT-BC414584  Polygonum douglasii Wm. Bridge Cooke 1941-9-5 16266 Siskiyou At MacBride Springs, Mt. Shasta Comment
  CAS-BOT-BC414597  Polygonum douglasii Louis C. Wheeler 1934-7-3 2860 Siskiyou Klamath National Forest. Soda Creek 1676 Comment
  RSA237771  Polygonum douglasii Frederick W. Oettinger 1969-8-12 1350 Siskiyou Trail side above Willow Spring on English Lake trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  JEPS84295  Polygonum douglasii subsp. douglasii L. R. Heckard with J. Hickman, S. D'Alcamo 1986-7-17 6483 Siskiyou e Cook and Green Pass (w ridge of butte); Copper Butte 1524 Comment
  JEPS50557  Polygonum douglasii subsp. johnstonii W. L. Jepson 1937-7-30 18539 Siskiyou near Poker Flat (summit of mts.); Siskiyou Mts. 1554 Comment
  UC164039  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 1910-6-20 1593 Siskiyou Yreka Comment
  UC375323  Polygonum douglasii subsp. spergulariiforme Geo. D. Butler 1909-8-6 184 Siskiyou summit s Marble Valley Comment
  UC375150  Polygonum lapathifolium Geo. D. Butler 1908-7-16 196 Siskiyou along creek near Yreka Comment
  UC375149  Polygonum phytolaccifolium Geo. D. Butler 1908-8-4 182 Siskiyou Shackleford Creek; head Comment
  RSA237795  Polygonum phytolaccifolium Frederick W. Oettinger 1968-8-7 437 Siskiyou E side of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1890 Comment
  CAS-BOT-BC420067  Polygonum polygaloides subsp. kelloggii Alice Eastwood 1921-7-29 10954 a Siskiyou Medicine Lake Comment
  CAS-BOT-BC420070  Polygonum polygaloides subsp. kelloggii Gilbert Muth 1966-7-19 425 Siskiyou Marble Mts. 1798 Comment
  JEPS50593  Polygonum shastense John G. Lemmon 1888-9-19 Siskiyou Shasta; side Comment
  CHSC4287  Polystichum imbricans D. Parker 1965-6-10 885 Siskiyou South Fork of Scott River. 1524 Comment
  UC1400748  Polystichum imbricans subsp. imbricans Alan R. Smith 1972-5-20 571 Siskiyou along rd. from Callahan to Somes Bar (between Cecilville and Forks of Salmon) Comment
  UC1456685  Polystichum imbricans subsp. imbricans I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat Mt. Bradley 1524 Comment
  CAS-BOT-BC76734  Polystichum imbricans subsp. imbricans Donald L. Branscomb 1958-7-1 s.n. Siskiyou Mount Shasta Comment
  HSC75353  Polystichum kruckebergii J. O. Sawyer, M. Mesler 1980-8-11 4037 Siskiyou Along Pacific Crest Trail just N of Jump Off in the Marble Mtn. Wilderness area Comment
  CAS-BOT-BC76714  Polystichum lemmonii Dr. E. B. Copeland 1903-1-1 3814 Siskiyou Mt. Eddy 1676 Comment
  JEPS89825  Polystichum lemmonii Dean William Taylor 1972-7-4 1976 Siskiyou near Lily Pad Lake 3 mi. w. Cook and Green Pass 1981 Comment
  CAS-BOT-BC72395  Polystichum lemmonii W. R. Dudley 1899-8-26 s.n. Siskiyou In the Foxtail Pine Woods, Sacramento River Comment
  UC185242  Polystichum lemmonii Geo. D. Butler 1910-7-12 1757 Siskiyou Schackleford Creek 1371 Comment
  CAS-BOT-BC72401  Polystichum lonchitis Louis C. Wheeler 1934-8-10 3100 Siskiyou Dead Cow Creek, Siskiyou Mts. 1889 Comment
  CAS-BOT-BC72407  Polystichum lonchitis Louis C. Wheeler 1934-8-6 3058 Siskiyou Klamath National Forest, Rock Gulch 1828 Comment
  CAS-BOT-BC72512  Polystichum scopulinum Louis C. Wheeler 1934-8-6 3059 Siskiyou Klamath National Forest, Rock Gulch 1828 Comment
  RSA184758  Populus tremuloides Gilbert Muth 1966-7-19 420 Siskiyou Black Mountain Trail. Meadow above Marble Valley. Marble Mountains. 1860 Comment
  CAS-BOT-BC445249  Portulaca oleracea Doris K. Kildale 1928-7-25 5884 Siskiyou Klamath River at Mack's Creek near Humbug. Comment
  JEPS125852  Potamogeton alpinus subsp. tenuifolius Dean W. Taylor 1996-6-24 15741 Siskiyou Klamath River canyon near Oregon State line Comment
  JEPS42976  Potamogeton foliosus Geo. D. Butler 1909-9-12 882 Siskiyou Oro Fino Comment
  RSA68955  Potamogeton gramineus A. E. Culbertson 1943-7-21 3 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi. S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts. 2000 above Sacramento R. within 10 mi. of its headwaters to the west. 1657 Comment
  RSA238841  Potamogeton pusillus subsp. tenuissimus Frederick W. Oettinger 1969-8-22 1494 Siskiyou Mucky bottom of Horses Hole. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  CAS-BOT-BC143183  Potentilla breweri John Thomas Howell 1937-7-25 13468 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC68470  Potentilla breweri Maralyn A. Renner 1980-6-26 1140 Siskiyou Flint Valley. 1390 Comment
  UC12511  Potentilla breweri Harley P. Chandler June, 1901 1697 Siskiyou near Marble Mountain; North Coast Ranges, near Marble Mountain 1524 Comment
  CAS-BOT-BC141967  Potentilla bruceae Gilbert J. Muth 1969-8-8 1275 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  RSA0005664  Potentilla cristae William J. Ferlatte 1988-8-10 2115 Siskiyou North-facing slope E of Cory Peak, above headwaters of Cabin Meadow Creek. 2195 Comment
  HSC44969  Potentilla drummondii J. O. Sawyer 1978-6-20 3270 Siskiyou Marble Mtn. Wilderness Area, Hamilton Camp 1829 Comment
  RSA237624  Potentilla drummondii Frederick W. Oettinger 1969-7-13 1001 Siskiyou North of upper English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  HSC18931  Potentilla flabellifolia J. O. Sawyer 1969-8-4 1820 Siskiyou Above Sugar Lake 2134 Comment
  RSA237862  Potentilla glandulosa var. nevadensis Frederick W. Oettinger 1968-8-22 598 Siskiyou Ridge between Diamond Lake and English Peak. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  RSA85778  Potentilla glandulosa var. nevadensis E. E. Stanford 1930-8-14 2085 Siskiyou Below summit of Sonora Pass. 2896 Comment
  CHSC71500  Potentilla newberryi Vernon H. Oswald; Lowell Ahart 1998-7-21 9343 Siskiyou Northeast of Weed and east of Grass Lake on the south side of Tennant Rd. 0.2 mi southeast of Old State Hwy. to Bray and on the east side of the intermittent stream draining Dry Lake. 1402 Comment
  UC702909  Primula suffrutescens Lester Rowntree 1937-7-25 Siskiyou Caribou Lakes Comment
  HSC58918  Prosartes hookeri Marvin Butler 1971-7-6 26 Siskiyou Near El Capitan 1524 Comment
  UC61041  Prunella vulgaris var. lanceolata W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Mount Shasta Sisson; , Sisson Comment
  UCD77960  Prunella vulgaris var. lanceolata Robert E. Preston 2001-7-20 1685 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1712 Comment
  CDA26150  Prunus emarginata T. C. Fuller 1960-5-26 4345 Siskiyou 2 miles south of Mt. Shasta City. 0 Comment
  RSA23400  Prunus emarginata Annetta Carter 1939-8-19 s.n. Siskiyou 3.5 miles N of Dunsmuir. 915 Comment
  UC166616  Prunus emarginata Geo. D. Butler 1909-5-2 711 Siskiyou Humbug Divide Comment
  CAS-BOT-BC151234  Prunus virginiana var. demissa L. E. Smith 1912-7-1 s.n. Siskiyou Weed Comment
  CAS-BOT-BC151242  Prunus virginiana var. demissa Doris K. Kildale 1929-5-31 9125 Siskiyou Cecilville, South Fork Salmon River Comment
  CAS-BOT-BC151249  Prunus virginiana var. demissa Geo. D. Butler 1910-7-24 1795 Siskiyou Yreka Creek Comment
  SEINET7412419  Prunus virginiana var. demissa G. D. Butler 1910-7-24 1795 Siskiyou Yreka Creek Comment
  JEPS95317  Pseudognaphalium stramineum Vernon H. Oswald and L. Ahart 1994-8-10 6451 Siskiyou T40N R2W NE1/4 NE1/4 Sec. 27, 3600 ft, Yellow Pine Forest. Pilgrim Creek Rd. (FS13) at Mud Creek, 2.7 mi N of Hwy. 89, ca. 4.5 mi (air) NE of McCloud 1097 Comment
  HSC27788  Pseudognaphalium thermale J. P. Smith, J. O. Sawyer 1972-9-13 5785 Siskiyou 0.5 mi. W of Cook and Green Pass on road to Lily Pad Lake Comment
  POM161561  Pseudoroegneria spicata subsp. spicata Geo D. Butler 1910-7-3 1626 Siskiyou Goose nest foothills 1220 Comment
  POM211404  Pseudoroegneria spicata subsp. spicata L. C. Wheeler 1934-6-29 2831 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1067 Comment
  CHSC71572  Pseudostellaria jamesiana Vernon H. Oswald; Lowell Ahart 1998-8-3 9427 Siskiyou Near the Pacific Crest Trail in the Scott Mtns. west of Kangaroo Lake. 1981 Comment
  RSA639072  Pseudotsuga menziesii L. C. Wheeler 1958-8-18 7397 Siskiyou West Fork Seiad Creek. Comment
  UC239  Pseudotsuga menziesii var. menziesii T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  UC54247  Pseudotsuga menziesii var. menziesii H. M. Hall and E. B. Babcock 1903-6-1 4077 Siskiyou near, n of Sisson Upton; Sierra Nevada, Mount Shasta 1219 Comment
  SEINET10795293 Image available Pseudotsuga taxifolia J. H. Sissons 1879-9-24 Sissons s.n. Siskiyou Comment
  HSC30661  Pteridium aquilinum var. pubescens Frederick W. Oettinger 1968-8-14 513 Siskiyou Marble Mountain Wilderness Area, near Tom Taylor Cabin 2027 Comment
  HSC2601  Pterospora andromedea William J. Ferlatte 1966-8-19 445 Siskiyou Kidd Creek Trail. 1707 Comment
  HSC46115  Pterospora andromedea J. P. Smith, Steve Selva 1970-6-16 4000 Siskiyou 5 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1189 Comment
  HSC465  Pterospora andromedea William J. Ferlatte 1966-8-3 285 Siskiyou Josephine Lake basin 1677 Comment
  UC1246760  Pteryxia terebinthina var. californica A. S. Barclay, R. D. Barbee and K. E. Blum 1962-7-10 1328 Siskiyou along Sacramento Creek, ca. 2 mi SW of town of Mt. Shasta Comment
  UCD113279  Purshia tridentata R. V. Parke 1954-5-15 120 Siskiyou 8 miles E of McCloud, Highway 89. 1097 Comment
  UCD77969  Purshia tridentata Robert E. Preston 2002-6-20 1839 Siskiyou Rainbow Mountain and Vicinity. Klamath National Forest, Rainbow Mountain. 1946 Comment
  SEINET9342725  Purshia tridentata Unknown 2009-5-31 Siskiyou High elevation, semi-arid desert ecosystem; native species; collected at Lava Beds National Monument, directly South of Tulelake, CA. Comment
  HSC69258  Pyrola picta J. Sawyer, J. Cole 1980-7-20 3742 Siskiyou 2 mi. N of Little Glass Mtn., on rd connecting F.S. Rd. 45N05 with F.S. Rd. 47N75 1875 Comment
  SBBG126113  Pyrrocoma lanceolata var. lanceolata L. Ahart, J. Dittes 2010-7-30 16969 Siskiyou Shasta Big Springs Ranch, 2.6 mi NW of Big Springs Lake, 3.9 mi SE of Grenada, 6.3 mi NW of Dwinnel Dam 778 Comment
  JEPS97186  Pyrrocoma racemosa var. pinetorum Julie Kierstead Nelson with Maria Ulloa-Cruz 1995-8-22 95022 Siskiyou northern foothills of The Eddys, along Parks Creek Road (Rd. 17) 2.2 mi above junction with Stewart Springs Rd. Shasta-Trinity National Forests, Mt. Shasta Ranger District Comment
  OBI55398  Pyrrocoma racemosa var. pinetorum David J. Keil 1992-7-24 23572 Siskiyou East of McCloud along Hwy 89, 7.7 mi W of Shasta County line. Comment
  CAS-BOT-BC362386  Pyrrocoma racemosa var. racemosa Elmer I. Applegate 1923-8-21 3925 Siskiyou Willow Creek, south of Lower Klamath Marsh Comment
  CAS-BOT-BC68650  Quercus chrysolepis Louis C. Wheeler 1934-9-4 3242 Siskiyou Klamath National Forest, Bear Creek 1371 Comment
  UC1409457  Quercus chrysolepis Frederick W. Oettinger 1969-8-16 1252 Siskiyou lower Toms Lake Basin, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  UCD82870  Quercus chrysolepis Rodney Gale Myatt 1971-9-22 1192 -9 Siskiyou Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 335 Comment
  SD76160  Quercus garryana Helen V. Witham 1969-10-7 575 Siskiyou Scott River Valley, 10 miles west of Ft. Jones. 700 Comment
  UC1311637  Quercus garryana Robert J. Rodin 1965-8-23 7159 Siskiyou just s Oregon border (Highway 99, in California) Comment
  RSA237814  Quercus garryana var. breweri Frederick W. Oettinger 1969-8-24 1540 Siskiyou Growing just SW of the brook on the W side of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  CAS-BOT-BC104362  Quercus sadleriana Louis C. Wheeler 1934-8-6 3048 Siskiyou Klamath National Forest, Jaynes canyon 1859 Comment
  CAS-BOT-BC104369  Quercus sadleriana Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  POM258373  Quercus sadleriana C. L. Hitchcock, J. S. Martin 1939-7-6 5221 Siskiyou On Takilma-Happy camp road. 1677 Comment
  RSA237357  Quercus sadleriana Frederick W. Oettinger 1967-8-26 335 Siskiyou 1/2 mile below Abbotts Upper Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SFV17814  Quercus sadleriana J. M. Tucker 1972-8-8 4247 B Siskiyou Marble Mountains Marble Mountains. Trail from Whiskey Camp to Elk Peak, about 2.5 miles west-southwest of Marble Valley Guard Station. 1829 Comment
  UC163743  Quercus sadleriana Geo. D. Butler 1908-8-4 234 Siskiyou West Fork of Woolly Creek Comment
  UCD47230  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 C Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte-Siskiyou County line, California. 1554 Comment
  UCD47239  Quercus sadleriana Gilbert Jerome Muth; J. M. Tucker 1972-8-9 1797 Siskiyou Near Cook and Green Pass, Siskiyou County, California. Seiad Valley Quad. 345 mm from bottom margin, 137 mm from left margin. SLID No. 6936, Herb Acc No. 00011252. 1462 Comment
  OBI14234  Quercus sadleriana R. Rimo Bacigalupi 1935-10-20 Siskiyou Summit of Indian Cyn rd, above Happy Camp on road to Walker, Oregon 457 Comment
  CAS-BOT-BC104643  Quercus vacciniifolia Edward Lee 1934-8-13 1066 Siskiyou Happy Camp to Waldo (Oregon) road, watershed of West Branch of Indian Creek, Klamath National Forest Comment
  HSC69277  Quercus vacciniifolia Maralyn A. Renner 1980-9-1 2678 Siskiyou Bear Mtn. 1936 Comment
  UCD47398  Quercus vacciniifolia Beecher Crampton 1956-8-21 3847 Siskiyou Canyon of the Sacramento River just above the North Fork junction with the Middle and South Forks, Siskiyou County. 1066 Comment
  CAS-BOT-BC380414  Ranunculus alismifolius var. hartwegii Frank W. Gould 1940-5-14 1225 Siskiyou Bull Meadows 11 mi west of Highway US 97 on road to Montague 1676 Comment
  HSC28740  Ranunculus aquatilis var. diffusus Frederick W. Oettinger 1969-8-24 1541 Siskiyou Marble Mtn. Wilderness Area, outlet of Upper English Lake 1921 Comment
  HSC36926  Ranunculus occidentalis var. occidentalis J. P. Smith 1974-5-26 7591 Siskiyou Along FS Rd. 47N03, 1/4 mi. NE of Chandler Glade 1768 Comment
  POM99442  Ranunculus orthorhynchus Geo. D. Butler 1910-4-21 1214 Siskiyou Oro Fino Comment
  RSA49963  Ranunculus orthorhynchus E. K. Balls 1949-7-8 13898 Siskiyou Trail to Carmen Lake from Scott Mountain Camp, Scott Mt. 1707 Comment
  UCD77228  Ranunculus populago Robert E. Preston 2001-6-30 1633 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W se 1/4 of nw 1/4 Section 14 1694 Comment
  SBBG2272  Ranunculus repens H. and M. Dearing 1939-7-2 3794 Siskiyou near Etna Comment
  HSC98332  Ranunculus uncinatus G. L. Clifton 1979-7-1 6162 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  POM126445  Rhamnus californica subsp. occidentalis A. M. Alexander, Louise Kellogg 1911-7-16 244 Siskiyou S F Salmon River. 1524 Comment
  HSC22285  Rhododendron columbianum J. O. Sawyer 1969-6-13 1089 Siskiyou W of Little Duck Lake 2043 Comment
  SEINET10907249  Rhododendron occidentale Mary Merello 1993-6-22 Merello 688 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
  HSC27471  Rhus aromatica J. P. Smith, J. O. Sawyer 1972-5-28 5368 Siskiyou 2.7 mi. N of Rd. 8 and Sugar Creek on Hwy. 3 915 Comment
  JEPS66277  Rhus trilobata Willis L. Jepson 1894-8-9 13916 Siskiyou Shasta Springs; Upper Sacramento Region Comment
  CAS-BOT-BC437999  Ribes Alice Eastwood 1912-7-23 1324 Siskiyou Cantara Comment
  CAS-BOT-BC438000  Ribes Alice Eastwood 1912-7-19 1245 Siskiyou Mount Shasta Comment
  CDA25521  Ribes aureum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2623 Siskiyou 200 meters north of Hamilton Street on Highway 3, north edge of Fort Jones. Comment
  CAS-BOT-BC92541  Ribes binominatum Roxana S. Ferris; Laura Lorraine 1948-6-12 11769 Siskiyou About 6 miles from Etna on forks of Salmon Road. 1706 Comment
  SBBG30543  Ribes cereum D. Myrick 1968-6-22 1988 Siskiyou Lava Beds Nat Monument 1371 Comment
  UCD102136  Ribes cereum Wm. E. Moon 1958-5-29 s.n. Siskiyou along State Hwy 97, southwest of Hebron Summit. 1524 Comment
  RSA0024869  Ribes cereum Jack Major 1961-7-14 635 Siskiyou Panther Creek, Mount Shasta. 1790 Comment
  CAS-BOT-BC168865  Ribes inerme var. klamathense Doris K. Kildale 1929-4-27 7842 Siskiyou Cecilville, Upper South Fork of Smith River Comment
  CAS-BOT-BC173301  Ribes lacustre Harley P. Chandler 1901-6-1 1561 Siskiyou Ridges and Meadows near Marble Mountain 1828 Comment
  HSC19373  Ribes lacustre J. O. Sawyer 1968-6-25 292 Siskiyou NE of N Horse Range Lake 2012 Comment
  SEINET3151805  Ribes lobbii G. D. Butler 1910-5-30 1442 Siskiyou Humbug Creek Comment
  UC375354  Ribes lobbii Geo. D. Butler 1908-7-19 267 Siskiyou Humbug Creek Comment
  UC1181810  Ribes lobbii Dorothy Parker 1950-4-22 401 Siskiyou near French Creek; Siskiyou Mountains, Salmon Mountains 1005 Comment
  CAS-BOT-BC212482  Ribes marshallii Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh Lake Comment
  CAS-BOT-BC212489  Ribes marshallii Harley P. Chandler 1901-6-1 1549 Siskiyou Ridges and meadows near Marble Mountain 1828 Comment
  JEPS25641  Ribes marshallii Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7280 Siskiyou Poker Flat 1536 Comment
  SEINET13942695 Image available Ribes nevadaense Alice Eastwood 2012-1 1324 Siskiyou Cantara Comment
  CAS-BOT-BC219272  Ribes nevadense John Thomas Howell 1937-7-22 13310 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC809  Ribes nevadense William J. Ferlatte 1967-7-25 734 Siskiyou Caribou Basin 1982 Comment
  UC465794 Image available Ribes nevadense Annie M. Alexander and Louise Kellogg 1911-6-23 179 Siskiyou Jackson Lake 1798 Comment
  UC618599  Ribes roezlii W. Bridge Cooke 1938-6-17 11001 Siskiyou Sisson Southern Trail Mount Shasta (also around Bear Springs) Comment
  UC70542  Ribes roezlii T. H. Gilbert June 1899 Siskiyou Scott River Valley Comment
  HSC68479  Ribes roezlii var. cruentum Maralyn A. Renner 1980-6-8 815 Siskiyou Slopes N of Moffett Creek 945 Comment
  UC154063  Ribes sanguineum Harley P. Chandler June 1901 1556 Siskiyou near Marble Mountain; North Coast Ranges 1828 Comment
  UC570965  Ribes sanguineum Dorothy Tebbe 1929-6-7 128 Siskiyou Mount Eddy Comment
  CAS-BOT-BC144515  Ribes sanguineum var. sanguineum Doris K. Kildale 1929-7-20 8693 Siskiyou trail fm Elk Lick to Raspberry Lake, upper Indian Creek 1828 Comment
  CAS-BOT-BC144518  Ribes sanguineum var. sanguineum Philip A. Munz 1952-7-2 17893 Siskiyou rd. to Baldy Mt., n.w. of Happy Camp, Siskiyou Mts. 1524 Comment
  JEPS25634 Image available Ribes viscosissimum Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7273 Siskiyou Poker Flat 1536 Comment
  JEPS49199  Ribes viscosissimum Geo. D. Butler 1908-8-5 260 Siskiyou near Cold Spring Camp; Woolly Creek Comment
  CAS-BOT-BC74658  Rorippa curvisiliqua John Thomas Howell 1939-8-5 15064 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  HSC43151  Rorippa curvisiliqua Ken Stillman 1976-8-24 427 Siskiyou Along the Klamath River at Williams Point 366 Comment
  RSA120877  Rorippa curvisiliqua G. D. Barbe 1955-8-4 349 Siskiyou 0.5 mile N of Big Flat at the head of Coffee Creek, at Trinity - Siskiyou Co line. The Klamath Mtns. 1524 Comment
  RSA237284  Rorippa curvisiliqua Frederick W. Oettinger 1968-8-12 495 Siskiyou Just before first moraine enroute to Tobacco Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  CHSC33835  Rorippa curvisiliqua var. occidentalis R. E. Preston 1981-5-2 59 Siskiyou On bank of Camp Creek at confluence with Irongate Reservoir; ca. 32 km ne of Yreka. 702 Comment
  RSA105510  Rosa eglanteria G. D. Barbe 1953-6-27 3 Siskiyou 0.8 miles N of Callahan near Hjertagers' Mill. 976 Comment
  CAS-BOT-BC146738  Rosa gymnocarpa Doris K. Kildale 1928-8-18 6413 Siskiyou North Fork of Salmon River at Finley Camp 609 Comment
  CAS-BOT-BC146758  Rosa gymnocarpa Doris K. Kildale 1929-5-31 9126 Siskiyou Cecilville, south fork of Salmon River Comment
  UC1483535  Rosa gymnocarpa John Palmer 1980-8-12 707 Siskiyou se Wards Gap; Klamath National Forest, Condry Mountain Quad. 1188 Comment
  UC60952  Rosa gymnocarpa Geo. B. Grant Sept. 1902 5283 Siskiyou Dunsmuir Mount Shasta 609 Comment
  JEPS84263  Rosa pisocarpa L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6360 Siskiyou ca 1/2 mi e Red Butte summit (ca 7 mi nne of Seiad Valley w of Cook and Green pass) 1900 Comment
  HSC43137  Rosa rubiginosa Ken Stillman 1976-8-24 414 Siskiyou E and N slopes of Williams Point 366 Comment
  CAS-BOT-BC147163  Rubus laciniatus Alice Eastwood 1912-7-23 1317 Siskiyou Dunsmuir Comment
  CAS-BOT-BC147987  Rubus leucodermis Alice Eastwood 1912-7-23 1328 Siskiyou Cantara Comment
  HSC36468  Rubus leucodermis J. O. Sawyer 1969-7-11 849 Siskiyou Ravine above C.C.C. road. 1280 Comment
  UC618724  Rubus leucodermis W. Bridge Cooke 1938-6-17 11038 Siskiyou Sisson Southern trail , Sisson Southern Trail (Mount Shasta) 1371 Comment
  CAS-BOT-BC147316  Rubus parviflorus H. A. Thomas; J. H. Thomas 1954-7-23 4463 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Vicinity of Blind Horse Creek 1036 Comment
  CAS-BOT-BC147311  Rubus parviflorus D. K. Noyes 1911-9-29 728 Siskiyou Klamath National Forest Comment
  JEPS11910  Rudbeckia klamathensis Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-12 4789 Siskiyou 4 mi below summit of road and Del Norte - Siskiyou Co. line (along Happy Camp-Takilma road, upper reaches of Indian Creek Canyon, nw corner Siskiyou County); Indian Creek Canyon 1005 Comment
  OBI55479  Rudbeckia klamathensis David J. Keil, Kathleen Keil 1992-7-21 23528 Siskiyou Klamath Natl Forest SE of Callahan. Forest Rd 40N08. 0.5 mi W of Scott Mtn rd (hwy 3) Comment
  HSC64442  Rumex acetosella J. P. Smith, Steve Selva 1970-6-15 3980 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  HSC64515  Rumex acetosella J. P. Smith 1973-5-5 6496 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  UCD101336  Rumex kerneri G. D. Barbe 1980-6-5 2815 Siskiyou Abandoned dairy south of Knighton Road along Sacramento River, on Riverland Drive (Interstate 5 frontage road); between Redding and Anderson. 128 Comment
  CAS-BOT-BC433695  Rumex obtusifolius H. A. Thomas; J. H. Thomas 1954-7-26 4547 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Between Mt. View Cabin and S. Fork of Salmon River. 944 Comment
  CAS-BOT-BC433709  Rumex occidentalis Geo. D. Butler 1909-6-5 971 Siskiyou Yreka Creek Comment
  CHSC88096  Rumex salicifolius Jenny Marr 1993-7-1 106 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC1408875  Sagina saginoides Frederick W. Oettinger 1969-8-19 1467 Siskiyou near Abbotts; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1859 Comment
  CAS-BOT-BC103545  Salix commutata Doris K. Kildale 1928-8-19 6572 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  CAS-BOT-BC103548  Salix commutata Alice Eastwood 1921-7-29 10970 Siskiyou Medicine Lake Comment
  HSC28670  Salix eastwoodiae Frederick W. Oettinger 1968-8-2 364 Siskiyou Marble Mtn. Wilderness Area, E outlet of Diamond Lake 2073 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
  RSA610755  Salix laevigata Louis C. Wheeler 1935-5-11 3472 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  SEINET4471747 Image available Salix laevigata var. angustifolia E. L. Greene 1876-1 795 bis Siskiyou Yreka Comment
  CAS-BOT-BC125449  Salix lasiandra var. lasiandra L. E. Smith 1914-5-5 651 Siskiyou Sisson Comment
  CAS-BOT-BC125481  Salix lasiandra var. lasiandra A. A. Heller 1915-7-18 12129 Siskiyou Metcalfs ranch, northeast base of Mt. Eddy 1371 Comment
  UC375226  Salix lasiolepis Geo. D. Butler 1909-3-14 1080 Siskiyou near Yreka (e end Lamb and Sheldon P.M.); Butler's Ranch Comment
  UC481720  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-21 469 Siskiyou creek side about 300 m below Dobkin Lake (trail from Downey Mill to lake, n side of mt., about 21 km nw of Shasta City); Mt. Eddy 1650 Comment
  CAS-BOT-BC124537  Salix lasiolepis var. lasiolepis Alice Eastwood 1917-9-2 s.n. Siskiyou Shasta Springs Comment
  SJSU191  Salix lemmonii Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou above Metcalf Ranch House, NE side of Mt Eddy c. 16 km NW of Shasta City 1463 Comment
  UC481729  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou near hwy. at Flume Creek Camp; Flume Creek - tributary of Pit River 555 Comment
  CAS-BOT-BC126132  Salix scouleriana L. S. Smith 1931-6-7 15 Siskiyou Mt. Shasta 1066 Comment
  CAS-BOT-BC126152  Salix scouleriana L. E. Smith 1913-3-28 611 Siskiyou Weed Comment
  CAS-BOT-BC129045  Salix scouleriana W. R. Dudley 1899-8-8 s.n. Siskiyou Near Big Spring above Sisson Comment
  CAS-BOT-BC129048  Salix scouleriana W. R. Dudley 1907-8-18 s.n. Siskiyou Meadow near Jackson's Lake Comment
  HSC28679  Salix scouleriana Frederick W. Oettinger 1969-8-1 1135 Siskiyou Marble Mtn. Wilderness Area, English Lake Basin 1707 Comment
  UC481712  Salix scouleriana Mrs. H. P. Bracelin 1931-6-20 447 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
  UC576379  Salix scouleriana Mrs. H. P. Bracelin 1936-9-3 858 Siskiyou 11 mi. n.w. Shasta City (ca. 2 mi. e. of Burney Mill, at second bridge, n. base Mt. Eddy); n. base Mt. Eddy 1127 Comment
  UCD125667  Salvia dorrii var. incana Robert E. Preston 1995-6-18 888 Siskiyou ca. 4 miles east of Hornbrook, on rock outcrop on north side of road to Irongate Reservoir. 670 Comment
  RSA183737  Sambucus caerulea Gilbert Muth 1965-8-2 143 Siskiyou 1/2 mile btween gate and Lower Sky High Lakes, Marble Mountains Comment
  UC163752  Sambucus mexicana Geo. D. Butler 1908-8-4 995 Siskiyou Shackelford Creek; head Comment
  RSA238834  Sambucus microbotrys Frederick W. Oettinger 1969-7-18 1059 Siskiyou Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CAS-BOT-BC238892  Sambucus nigra subsp. caerulea Wm. Bridge Cooke 1939-6-30 13566 Siskiyou Mount Shasta. Grows near the outlet of MacBride Springs Comment
  HSC29281  Sambucus nigra subsp. caerulea Frederick W. Oettinger 1968-8-23 618 Siskiyou Marble Mtn. Wilderness Area, W of Upper English Lake. 1768 Comment
  CHSC32941  Sambucus racemosa var. microbotrys J. P. Smith; Steve Selva 1970-6-16 4066 Siskiyou 8 miles west of Etna on road to Sawyers Bar. 1371 Comment
  UCR66580  Sanguisorba annua L. C. Wheeler 1934-6-22 2758 Siskiyou Siskiyou Mtns., Cottonwood Creek 915 Comment
  HSC76633  Sanicula graveolens K. T. Stillman 1976-6-25 30 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  RSA78810  Sanicula graveolens P. A. Munz 1952-7-2 17884 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1494 Comment
  RSA42328  Sanicula graveolens Lincoln Constance, R. Shan 1946-5-31 3059 Siskiyou East bank of Sacramento river at Dunsmuir 701 Comment
  UC909335  Sanicula tuberosa Ira L. Wiggins 1950-5-28 12381 Siskiyou just above Grouse Lake (headwaters of Grouse Creek); headwaters of Grouse Creek 1737 Comment
  UCD20772  Santolina chamaecyparissus Steve Orloff 2002-6-25 s.n. Siskiyou Siskiyou County. City of Granada, south of Yreka. Comment
  HSC12270  Saponaria officinalis Richard Spjut 1970-7-17 467 Siskiyou Just off Hwy. 89 at the W end of McCloud 1220 Comment
  JEPS84268  Saxifraga aprica L. R. Heckard with J. Hickman et al. 1986-7-17 6465 Siskiyou 5 mi n of the town of Seiad Valley (Trail up Kangaroo Peak, s of Lily Pad Lake); Kangaroo Peak 2011 Comment
  UC1053439  Saxifraga californica Rimo Bacigalupi, and Arthur Holmgren 1950-4-24 3135 Siskiyou opposite town Dunsmuir (directly opposite railroad shops, along Sacramento River, e side of canyon); cliffs along Sacramento River Comment
  JEPS82426  Saxifraga integrifolia Gilbert Muth 1966-7-8 367 Siskiyou Marble Valley Meadow; Marble Mountain Wilderness Area, Marble Valley Meadow 1792 Comment
  RSA47992  Saxifraga nidifica Roxana S. Ferris, Laura Lorraine 1948-6-12 11774 Siskiyou About 5.5 miles from Etna on forks of Salmon road. Comment
  RSA184816  Saxifraga nidifica var. claytoniifolia Gilbert Muth 1966-7-31 475 Siskiyou North side of Black Mountain, Marble Mountains 2058 Comment
  UC722724  Saxifragopsis fragarioides C. L. Hitchcock, J. S. Martin 1939-7-9 5316 a Siskiyou between King's Castle and Black Mountain 1828 Comment
  CAS-BOT-BC111665  Schoenoplectus pungens var. badius D. E. Breedlove 1962-6-10 3324 Siskiyou On the north bank of the Klamath River at its junction with Goff Creek. 411 Comment
  JEPS107651  Scirpus americanus Lowell Ahart, John Dittes 2005-6-10 12103 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
  CAS-BOT-BC35600  Scirpus congdonii A. H. Murphy 1954-8-21 54 -13 Siskiyou Round Meadow, Klamath National Forest 1676 Comment
  HSC63479  Scirpus congdonii M. A. Baker 1979-7-31 1091 Siskiyou Marble Mtn. Wilderness Area, head of Tickner Hole 1750 Comment
  JEPS84061  Scirpus congdonii L. R. Heckard with J. C. Hickman 1986-7-16 6447 Siskiyou ca. 5 mi. n. Seiad Valley town (s.e. of Red Butte, Lily Pad Lake); Lily Pad Lake 1770 Comment
  CAS-BOT-BC111092  Scirpus microcarpus Louis C. Wheeler 1934-9-22 3300 Siskiyou Klamath Forest, Walker. 518 Comment
  HSC73230  Scirpus microcarpus Gail Newton 1980-6-20 514 Siskiyou Near Bald Mtn. 1097 Comment
  UCD141268  Scirpus microcarpus P. B. Kennedy 1922-8-29 s.n. Siskiyou Scott Valley. Trity Young Ranch. Comment
  SEINET3915118  Scirpus validus K. Morris, Conrad; Dunn 1973-6-2 347 Siskiyou Found at the junction of Shasta and Klamath River on Hwy 263.; 0 Comment
  CHSC33019  Scleranthus annuus subsp. annuus James P. Smith 1973-5-5 6525 Siskiyou Scott Bar along the Scott River. Comment
  RSA105370  Scribneria bolanderi G. D. Barbe 1955-7-6 125 Siskiyou SE shore of Taylor Lake, Salmon Mtns. 1951 Comment
  HSC63623  Scutellaria antirrhinoides J. P. Smith, Steve Selva 1970-7-27 4509 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  UC1713595  Scutellaria antirrhinoides C. Epling 1938-6-12 Siskiyou between Happy Camp and Orleans Comment
  RSA789787  Scutellaria antirrhinoides Rebecca Wenk 2005-7-16 250 Siskiyou Trinity Alps, South Fork of the Salmon River. South end of Big Flat Meadow. 1494 Comment
  SD98954  Scutellaria antirrhinoides Darley F. Howe 1977-7-1 Siskiyou Scott Mountain Creek, Scott Mountains. 1219 Comment
  RSA445342  Scutellaria siphocampyloides Louis C. Wheeler 1934-6-4 2633 Siskiyou Hamburg Gulch off Horse Creek. (Mt. Diablo Mer.) Siskiyou Mts 610 Comment
  JEPS50723  Sedum divergens Al Hobart 1967-8-8 Siskiyou just s Youngs Valley (on steep sides of El Capitan, Siskiyou Mountains, extreme western Siskiyou County); Siskiyou Mountains, El Capitan, s of Youngs Valley 1828 Comment
  JEPS98769  Sedum laxum subsp. flavidum Dean W. Taylor 1996-6-18 15702 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1249 Comment
  JEPS40870  Sedum laxum subsp. heckneri Paul C. Hutchison 1962-8-5 958 Siskiyou 3.7 mi above mouth Carberry Creek (Middle Fork Applegate River, e-facing cliffs); Middle Fork Applegate River, above mouth Carberry Creek 762 Comment
  CAS-BOT-BC64639  Sedum obtusatum subsp. boreale Robert Theodore Clausen; Harold Trapido 1940-7-26 4952 Siskiyou East side of Mud Creek Canyon, Mt. Shasta. 1706 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
  HSC101745  Sedum obtusatum subsp. obtusatum J. P. Smith, J. O. Sawyer 2010-5-2 12807 Siskiyou Rock cliffs along Salmon River Road 252 Comment
  HSC59367  Sedum obtusatum subsp. retusum M. A. Baker 1979-7-30 1075 Siskiyou Marble Gap 2300 Comment
  JEPS2848 Image available Sedum purdyi Carl Purdy 1900-1 Siskiyou Etna Mills; ; Etna Mills, Siskiyou Co. Comment
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Jun 5 2007
  CAS-BOT-BC59128  Sedum spathulifolium John Thomas Howell 1939-8-8 15142 Siskiyou Marble Mountains, between Marble Valley and Sky High Valley. Comment
  RSA0074726  Sedum spathulifolium Gilbert Muth 1965-8-3 158 Siskiyou Marble Valley, Marble Mtns. Comment
  RSA0013321  Senecio aronicoides A. E. Culbertson 94 Siskiyou near Forest Service Camp Grd., about a mile downstream from Castle Lake on road to town of Shasta; on north slope of a 6600' eastern spur of Trinity Mts. and 1500' above Sacramento R., within 9 air miles of its headwaters to the west., Mt. Shasta 13 miles to n.e. 1524 Comment
  UCD135524  Senecio aronicoides James Payne Smith Jr. 1976-5-21 8769 Siskiyou Klamath National Forest, Forest Road 40N08, 6.9 miles from its junction with State Route 3. 1524 Comment
  CHSC88130  Senecio hydrophilus Jenny Marr 1993-7-1 141 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC76910  Senecio integerrimus K. T. Stillman 1976-6-26 122 Siskiyou Marble Mtn. Wilderness Area, near Bear Lake. 1829 Comment
  UC454316  Senecio integerrimus var. exaltatus I. J. Condit 1911-7-27 Siskiyou Castle Lake 1981 Comment
  SD52959  Senecio integerrimus var. exaltatus Peter H. Raven 1962-5-30 17899 Siskiyou U. S. Highway 97, 12.3 miles south of Macdoel. Comment
  HSC4  Senecio integerrimus var. major William J. Ferlatte 1966-6-23 129 Siskiyou Yellow Rose Mine 1982 Comment
  JEPS37284  Senecio integerrimus var. major Duncan Dunning 1922-6-6 Siskiyou nw of Fort Jones; Moffett Creek Comment
  HSC62000  Senecio triangularis Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  HSC68349  Senecio triangularis J. P. Smith, J. O. Sawyer 1970-7-17 4470 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC76691  Senecio triangularis K. T. Stillman 1976-7-30 311 Siskiyou Marble Mountain Wilderness Area, trail from Big Rock Camp to Jump off. 1982 Comment
  HSC96289  Senecio triangularis Gordon Leppig 1998-8-14 1010 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  JEPS37600  Senecio triangularis Geo. D. Butler 1908-8-9 340 Siskiyou Marble Valley 1676 Comment
  HSC29092  Senecio triangularis Frederick W. Oettinger 1968-8-1 343 Siskiyou Marble Mtn. Wilderness Area, S of Hancock Lake 2043 Comment
  HSC4762  Senecio triangularis William J. Ferlatte 1966-8-4 323 Siskiyou N side of Caribou Mtns. 1982 Comment
  HSC19470  Sibbaldia procumbens J. O. Sawyer 1969-7-10 1128 Siskiyou SW facing slope W of Russian Lake 2210 Comment
  JEPS67298  Sidalcea asprella W. L. Jepson 1937-7-30 18551 Siskiyou Poker Flat Siskiyou Mts., headwaters Indian Creek (headwaters Indian Creek) 1584 Comment
  HSC77411  Sidalcea malviflora subsp. celata L. P. Janeway 1983-8-16 548 Siskiyou Poker Flat 1524 Comment
  RSA105426  Sidalcea oregana subsp. eximia G. D. Barbe 1955-7-1 83 Siskiyou 7 miles north of Callahan at jct. of the Eastside Road and the east-west road crossing Scott Valley; 884 Comment
  JEPS67209  Sidalcea oregana subsp. oregana Geo. D. Butler 1908-8-3 61 Siskiyou Log Lake 1371 Comment
  JEPS67293  Sidalcea oregana subsp. oregana W. L. Jepson 1940-6-28 20061 Siskiyou McCloud 975 Comment
  JEPS67299  Sidalcea oregana subsp. spicata W. L. Jepson 1937-7-23 18457 Siskiyou Yreka Comment
  OBI55470  Sidalcea oregana subsp. spicata David J. Keil, Kathleen Keil 1992-7-21 23535 Siskiyou Klamath Natl Forest SE of Callahan. Forest Rd 40N08, 1.7 mi W of Scott Mtn rd (hwy 3) Comment
  UC454910  Sidalcea oregana subsp. spicata I. J. Condit 1911-7-22 Siskiyou Sisson Comment
  UC705650  Silene campanulata Marion Ownbey, D. H. Brown 1941-6-24 2430 Siskiyou ne Yreka (near top of Black Mountain); , ne of Yreka Comment
  CAS-BOT-BC181193  Silene campanulata subsp. glandulosa H. A. Thomas; J. H. Thomas 1954-7-21 4388 Siskiyou About 6 miles SE of Cecilville, west side of Rush Creek, Salmon - Trinity Mts. 1036 Comment
  CAS-BOT-BC181197  Silene campanulata subsp. glandulosa L. B. Kildale 1930-6-1 9778 Siskiyou Black Bear Trail to Sawyers Bar Comment
  CAS-BOT-BC181202  Silene campanulata subsp. glandulosa John Thomas Howell 1939-8-3 14972 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  RSA237849  Silene campanulata subsp. glandulosa Frederick W. Oettinger 1969-8-22 1497 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
  SBBG30596  Silene douglasii var. douglasii D. Myrick 1968-6-29 2059 Siskiyou Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  CHSC98892  Silene grayi L. P. Janeway; B. Castro 2007-7-29 9142 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
  HSC23547  Silene grayi J. O. Sawyer 1969-8-4 1861 Siskiyou Slope SW of Sugar Lake 2195 Comment
  SD113391  Silene grayi Darley F. Howe 1962-8-6 3404 Siskiyou Mt. Shasta, Shasta National Forest. 2438 Comment
  UC722486  Silene grayi C. L. Hitchcock, J. S. Martin 1939-7-9 5320 Siskiyou between King's Castle and Black Mt. (w side of ridge); btw King's Castle and Black Mt. 1828 Comment
  JEPS50989  Silene lemmonii Willis L. Jepson 1894-8-4 Siskiyou Sisson , , Camp 1 (Mt. Shasta) Comment
  HSC19442  Silene lemmonii J. O. Sawyer 1969-7-3 1057 Siskiyou SE facing upper slope above Horse Range Creek 1524 Comment
  POM182779  Silene menziesii var. viscosa Geo. D. Butler 1909-6-10 967 Siskiyou Yreka Creek. Comment
  CHSC93541  Sisymbrium altissimum Lowell Ahart; John Dittes 2005-6-9 12020 Siskiyou Open 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
  JEPS53887  Sisymbrium altissimum W. L. Kleaver 1919-6-10 2 Siskiyou Yreka 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
  RSA715777  Sisyrinchium bellum Lowell A. Ahart, John Dittes 2005-6-10 12102 Siskiyou 30 yards E of the Shasta River, near the south fence, 100 yards S of the pump house along the Shasta River, about 1.9 air miles S of highway 99/97 cutoff, about 6 air miles ESE of Grenada. 777 Comment
  CHSC70188  Sisyrinchium idahoense Jennifer Whipple 1976-7-24 1563 Siskiyou Southwest of Dobkins Lake along the drainage into the lake. 2255 Comment
  JEPS25624  Smilacina racemosa Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7258 Siskiyou Poker Flat 1536 Comment
  CDA34724  Solanum dulcamara L. Ahart, John Dittes 2010-7-3 16939 Siskiyou Along the south edge of the Shasta River, about 100 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. Comment
  HSC28652  Solanum parishii Frederick W. Oettinger 1969-8-12 1347 Siskiyou Marble Mtn. Wilderness Area, along trail above Willow Springs 1677 Comment
  CAS-BOT-BC94461  Solanum umbelliferum R. C. Wenk 2005-7-19 318 Siskiyou Along Pacific Crest Trail, 1-2 miles S of parking lot at top of pass on National Forest Road 17, going towards Mt. Eddy 2133 Comment
  SEINET516275  Solidago californica Vernon H. Oswald 1997-7-28 8791 Siskiyou SE of Medicine Lake at Paynes Springs. 1981 Comment
  CAS-BOT-BC365572  Solidago elongata G. B. Grant 1902-9-11 s.n. Siskiyou Sisson Comment
  HSC26761  Solidago elongata J. P. Smith, J. O. Sawyer 1971-9-18 4811 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  HSC76968  Solidago elongata K. T. Stillman 1976-9-9 487 Siskiyou Marble Mtn. Wilderness Area; trail from jump off to Paradise Lake 1951 Comment
  CHSC114087  Solidago multiradiata Danielle Roach 2011-8-25 Siskiyou Middle Fork Sacramento River headwaters, east slope of the Eddys. 1947 Comment
  UC88188  Solidago spectabilis K. Curran Jul 1887 Siskiyou Sisson's Comment
  UC1190120  Sorbus californica Ira L. Wiggins 1955-7-27 13554 Siskiyou Caribou Lake; Salmon Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC158931  Sorbus scopulina L. E. Smith 1912-10-1 s.n. Siskiyou Hilt Comment
  CAS-BOT-BC158936  Sorbus scopulina Louis C. Wheeler 1934-8-8 3068 Siskiyou W. Fork Beaver Cr., Klamath National Forest 1676 Comment
  RSA237451  Sorbus scopulina var. cascadensis Frederick W. Oettinger 1969-9-4 1665 Siskiyou S end of Tobacco Lake Basin. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1951 Comment
  UCD170026  Spergularia rubra Louis C. Wheeler 1934-9-2 3239 Siskiyou Siskiyou Mountains, Miller Glade. 1828 Comment
  CHSC1608  Spiraea densiflora M. Yoder 1941-7-6 Siskiyou Castle Lake. 1981 Comment
  UC722698  Spiraea densiflora C. L. Hitchcock and J. S. Martin 1939-7-7 5272 a Siskiyou ca 12 mi s Takilma, Oregon (Sanger Peak Trail, 1 mi s of Camp Chicago); Siskiyou Mts. 1432 Comment
  RSA68945  Spiraea densiflora var. splendens A. E. Culbertson 1943-7-8 13 Siskiyou E shore of Castle Lake, 5434'. 14 miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mtns. 2000' above Sacramento River. Within 10 air miles of its headwaters to the W. Comment
  JEPS46333  Spiraea douglasii W. L. Jepson 1940-7-3 20107 Siskiyou 5 mi se Bartle; Big Bear Flat 1219 Comment
  RSA382202  Spiranthes romanzoffiana M. B. Dunkle 1945-1 9346 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  JEPS84073  Stachys ajugoides var. rigida L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6367 Siskiyou ca. 1/2 mi e Red Butte Summit (ca. 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  RSA183648  Stachys rigida subsp. quercetorum Gilbert Muth 1965-8-16 221 Siskiyou On trail behind Blk. Mt., Marble Mts. Comment
  RSA273427  Stachys rigida subsp. rigida J. P. Smith, J. O. Sawyer 1972-9-14 5808 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  UCD78016  Stellaria calycantha Robert E. Preston 2001-7-20 1695 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, T42N R1W ne 1/4 of se 1/4 Section 14 1755 Comment
  CHSC88120  Stellaria longipes var. longipes Jenny Marr 1993-7-1 130 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC75256  Stenanthium occidentale J. O. Sawyer, M. Mesler 1980-8-13 4050 Siskiyou E of Pacific Crest Trail at Black Marble Mtn. 1921 Comment
  CAS-BOT-BC375640  Stephanomeria lactucina Wm. Bridge Cooke 1938-7-29 11389 Siskiyou Mount Shasta. Howard Comment
  CDA8847  Stephanomeria lactucina G. C. Fleischman 1946-7-26 Siskiyou Northern California; Mr. Shasta, Dunsmuir area. 0 Comment
  RSA237481  Stephanomeria lactucina Frederick W. Oettinger 1969-8-18 1438 Siskiyou On English Lake trail, below Willow Spring. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1677 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-BC375943  Stephanomeria virgata Louis C. Wheeler 1934-7-17 2912 Siskiyou Klamath National Forest. Cottonwood Cr. 1036 Comment
  HSC43031  Stipa lemmonii J. O. Sawyer, Ken Stillman 1976-7-2 2804 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  HSC19122  Stipa occidentalis var. californica J. O. Sawyer 1969-8-4 1842 Siskiyou Above Sugar Lake 2134 Comment
  HSC19239  Stipa occidentalis var. occidentalis J. O. Sawyer 1969-7-25 1545 Siskiyou West of High Lake 2256 Comment
  CHSC4552  Streptanthus J. E. Bowlin 1967-7-18 70 Siskiyou Beside road, ca. 2.7 mi w of Mount Shasta Ski Bowl. 2194 Comment
  CAS-BOT-BC87858  Streptanthus tortuosus Marion Ownbey; Fred G. Meyer 1940-7-3 2162 Siskiyou 5 miles northwest of McCloud. Comment
  CAS-BOT-BC87864  Streptanthus tortuosus Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mountains. 1889 Comment
  HSC76965  Streptanthus tortuosus K. T. Stillman 1976-9-10 505 Siskiyou Marble Mtn. Wilderness Area, trail from Marble Gap to Elk Valley 2104 Comment
  CAS-BOT-BC87879  Streptanthus tortuosus William A. Dayton 1913-7-20 394 Siskiyou Shasta Forest. Crest of Trinity Mountain Ridge. 1524 Comment
  RSA233655  Streptanthus tortuosus R. F. Thorne, Frederick W. Oettinger 1969-8-10 39004 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  UC162647  Streptanthus tortuosus var. orbiculatus Harley P. Chandler June 1901 1636 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges 2133 Comment
  SBBG2585  Streptanthus tortuosus var. pallidus H. and M. Dearing 1939-7-1 3780 Siskiyou Salmon Mtn 1828 Comment
  HSC61981  Streptanthus tortuosus var. tortuosus Al Hobart 25 Jul [year missing] Siskiyou Preston Peak 1982 Comment
  JEPS54015  Streptanthus tortuosus var. tortuosus W. L. Jepson 2862 Siskiyou near Cottage Grove; Klamath River Comment
  CAS-BOT-BC516429  Streptopus amplexifolius Roxana S. Ferris; Laura Lorraine 1948-6-12 11749 Siskiyou French Creek Logging Road west of Callahan 1219 Comment
  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
  JEPS80511  Streptopus amplexifolius var. americanus Gilbert Muth 1966-7-24 443 Siskiyou Marble Mt. Wilderness Area, Marble Valley 1792 Comment
  UC1312955  Streptopus amplexifolius var. americanus J. M. Tucker 1963-8-19 3771 Siskiyou headwaters of Canyon Creek; Marble Mountain Wilderness Area 1950 Comment
  SD53388  Swertia albicaulis var. nitida Darley F. Howe 1962-8-4 3389 Siskiyou Near summit of Baldy Mountain. 1737 Comment
  CAS-BOT-BC234778  Symphoricarpos mollis Carl B. Wolf 1927-8-27 1113 Siskiyou On the Klamath River, Happy Camp Comment
  HSC19110  Symphoricarpos mollis J. O. Sawyer 1969-7-23 1179 Siskiyou Along road near Horse Range Creek. 1341 Comment
  CAS-BOT-BC234789  Symphoricarpos mollis Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1889 Comment
  HSC91427  Symphoricarpos rotundifolius var. rotundifolius Jennifer Whipple 1977-7-20 2009 Siskiyou Near Durney Lake. 2073 Comment
  JEPS40765  Symphyotrichum foliaceum Geo. D. Butler 1910-8-13 1830 Siskiyou Quartz Valley Comment
  HSC29225  Symphyotrichum hendersonii Frederick W. Oettinger 1968-9-10 815 Siskiyou NW of Horse Range Lake; Salmon Mtns, English Peak area 1822 Comment
  UC165283  Symphyotrichum spathulatum Geo. D. Butler 1910-9-11 1880 Siskiyou near Edgewood Comment
  CAS-BOT-BC98439  Symphyotrichum spathulatum C. Edward Graves 1944-8-1 s.n. Siskiyou Mt. Shasta Comment
  HSC75352  Symphyotrichum spathulatum var. spathulatum J. O. Sawyer, M. Mesler 1980-8-10 4036 Siskiyou S of Carmen Lake, ultramafics of Scott Mtn. 1829 Comment
  OBI55527  Symphyotrichum spathulatum var. yosemitanum David J. Keil, Kathleen Keil 1992-7-21 23518 Siskiyou Klamath NF SE of Callahan on hwy 3, 2.1 mi NW of Scott Mtn summit Comment
  POM216003  Taeniatherum caput-medusae L. C. Wheeler 1935-6-4 3546 Siskiyou Grenada, Shasta Valley. 793 Comment
  SEINET10861043  Taeniatherum caput-medusae Edwin B. Copel 1903-7-5 Copeland 3493 Siskiyou North slope of Round Mountain Comment
  CAS-BOT-BC376797  Tanacetum parthenium L. E. Smith 1914-7-3 731 Siskiyou Sisson Comment
  CHSC32898  Taraxia tanacetifolia J. P. Smith; Steve Selva 1970-8-9 4586 Siskiyou Roadside by Grass Lake. Comment
  CHSC86457  Taraxia tanacetifolia Jenny Marr 1993-7-1 74 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NE of Meiss Lake. 1349 Comment
  CAS-BOT-BC85232  Taxus brevifolia John Thomas Howell; Gordon H. True 1972-6-8 48862 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  HSC18992  Tellima grandiflora J. O. Sawyer 1969-7-18 1362 Siskiyou E of Waterdog Lake 2012 Comment
  HSC6276  Tetradymia canescens R. C. Wunner 1965-7-9 352 Siskiyou California Lava Beds National Monument; 0.4 mi. along Hardin Butte Trail 1341 Comment
  CAS-BOT-BC88075  Thelypodium brachycarpum Alice Eastwood; John Thomas Howell 1934-4-20 1779 Siskiyou Gazelle. Comment
  UC1083162  Thelypodium brachycarpum H. L. Mason 1931-5-9 5874 Siskiyou 4 mi n Dunsmuir Comment
  UC563967  Thelypodium flexuosum Elmer I. Applegate 1935-6-2 9286 a Siskiyou near n boundary Lava Beds National Boundary (Frenner's ranch) Comment
  CAS-BOT-BC77711  Thelypteris nevadensis Doris K. Kildale 1928-7-3 5438 Siskiyou Little North Fork of Salmon River Comment
  CAS-BOT-BC77737  Thelypteris nevadensis Louis C. Wheeler 1934-8-21 3191 Siskiyou East Fork Horse Creek, Klamath National Forest 1219 Comment
  CAS-BOT-BC197374  Thinopyrum intermedium subsp. barbulatum T. C. Fuller 1962-8-30 9498 Siskiyou 200 yds. up Raggedass Gulch, e. of Beaver Creek, 5 mi. n. of the Klamath River Comment
  CHSC86664  Thlaspi arvense Jenny Marr 1993-7-1 47 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS82673  Thlaspi montanum var. montanum Wayne Roderick 1984-6-7 Siskiyou sw Stewart Springs (Cabin Meadow, Campsite); Cabin Meadow (sw of Stewart Springs) 1798 Comment
  CAS-BOT-BC66793  Thysanocarpus curvipes Geo. D. Butler 1910-4-25 1241 1/2 Siskiyou Fields - Oro Fino. Comment
  RSA0036026  Thysanocarpus curvipes var. curvipes Louis C. Wheeler 1925-5-11 3477 Siskiyou Klamath River at Ash Creek, Sisikyou Mts. 609 Comment
  RSA0049974  Thysanocarpus radians George D. Butler 1910-3-27 1146 Siskiyou Near Yreka. Comment
  UC844400  Tofieldia occidentalis subsp. occidentalis Alice Eastwood 1912-9-1 551 Siskiyou Mount Eddy Comment
  CAS-BOT-BC447626  Tolmiea menziesii Ira L. Wiggins 1955-7-24 13501 Siskiyou Trail at crossing of China Creek, above diversion dam 1301 Comment
  CDA41910  Tonella tenella G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2601 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  RSA603012  Torreyochloa pallida var. pauciflora L. C. Wheeler 1935-7-26 3714 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  CAS-BOT-BC169255  Toxicodendron diversilobum Alice Eastwood 1922-10-18 11529 Siskiyou Shasta Sprnigs Comment
  POM56352  Tragopogon porrifolius Copeland 1903-8-4 3886 Siskiyou Sisson. Comment
  HSC71099  Triantha occidentalis subsp. occidentalis Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4505 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC14451  Trichostema lanceolatum C. B. Wolf 1927-8-26 1041 Siskiyou Along Klamath River, 4 mi. N of Gottville Comment
  SBBG25930  Trichostema oblongum D. Myrick 1966-8-8 1476 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  HSC68359  Trientalis latifolia J. P. Smith, Steve Selva 1970-6-16 4051 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  POM76576  Trientalis latifolia Geo. D. Butler 1910-5-23 1392 Siskiyou Humbug Mtn. 1220 Comment
  SBBG3819  Trifolium eriocephalum H. and M. Dearing 1939-6-3 3528 Siskiyou Spring Flat Public Camp, Klamath Nat Forest 731 Comment
  SEINET10487850  Trifolium eriocephalum Melvin L. Conrad, Douglas G. LeDoux; Patricia L. Kenney 1973-6-2 Conrad 6980 Siskiyou Western yellow pine, libocedrus, douglas fir forest, 6 mi sw of callahan. 1524 Comment
  HSC70495  Trifolium eriocephalum J. P. Smith, Steve Selva 1970-6-16 4016 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  JEPS101153  Trifolium eriocephalum var. eriocephalum Dean W. Taylor 1996-6-19 15713 Siskiyou Lime Gulch; bordering Shasta Valley (about 15 miles south of Yreka) 1188 Comment
  JEPS2899 Image available Trifolium eriocephalum var. eriocephalum Geo. D. Butler 1908-8-3 384 Siskiyou Log Lake Shacklesford Creek 1524 Comment
  HSC104145  Trifolium howellii Dana York 2011-8-14 3078 Siskiyou Klamath National Forest, Marble Mountain Wilderness, 230 m W-SW of Black Marble Mountain 2220 Comment
  UC1223368  Trifolium howellii Joseph P. Tracy 1951-6-6 19467 Siskiyou n Summit crossing (on the Takilma-Happy Camp Rd); Siskiyou Mtns Comment
  JEPS48903  Trifolium hybridum Geo. D. Butler 1908-7-8 387 Siskiyou near Yreka (Butler's Ranch, along creek) Comment
  JEPS93936  Trifolium kingii var. productum Vernon H. Oswald and Lowell Ahart 1998-8-11 9476 Siskiyou 6.2 mi ne of Four Trees (USFS 23N85Y 0.8 mi e of Oroville-Quincy Highway, on s side of Frenchman Hill); Frenchman Hill, USFS 23N85Y 1737 Comment
  HSC67704  Trifolium longipes John Palmer 1980-7-24 604 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC69188  Trifolium longipes Maralyn A. Renner 1980-8-31 2630 Siskiyou Twin Valley. 1494 Comment
  UC149765  Trifolium longipes var. elmeri Milo S. Baker 1899-7-1 Siskiyou Ash Creek, e slope Mt. Shasta Comment
  POM28035  Trifolium microcephalum Geo. D. Butler 1909-6-20 920 Siskiyou Yreka. Comment
  HSC92947  Trifolium productum Jennifer Whipple 1977-7-22 2048 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2195 Comment
  UC54388  Trifolium repens H. M. Hall and E. B. Babcock June, 1903 4068 Siskiyou Sisson Moutn Shasta Comment
  POM28038  Trifolium variegatum var. variegatum Geo. D. Butler 1910-3-27 1245 Siskiyou Oro Fino Comment
  UC630693  Trifolium willdenovii Geo. D. Butler 1910-5-8 1313 Siskiyou near Yreka Comment
  UC164234  Trifolium wormskioldii Geo. D. Butler 1909-6-26 915 Siskiyou McNutty's Field near Yreka Comment
  UC375412  Trifolium wormskioldii Geo. D. Butler 1908-7-2 381 Siskiyou near Yreka Comment
  CAS-BOT-BC519594  Trillium Roxana S. Ferris; Laura Lorraine 1948-6-12 11883 Siskiyou About 6 miles from Etna on forks of Salmon road 1676 Comment
  CAS-BOT-BC521555  Trillium L. R. Short 1933-5-23 135 Siskiyou Klamath Forest 914 Comment
  JEPS47266  Trillium albidum Edward Lee Greene 1876-4-24 Siskiyou near Yreka Comment
  RSA75589  Trillium albidum Albert M. Vollmer, L. Beane 1951-6-2 71 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway. Comment
  CAS-BOT-BC519099  Trillium chloropetalum var. chloropetalum J. H. Thomas 1949-6-16 946 Siskiyou 1/4 mile north of Beaver Creek Public Camp along Beaver Creek, 5 miles north of junction of Beaver Creek and Klamath River, Klamath National Forest Comment
  HSC68314  Trillium ovatum Maralyn A. Renner 1980-6-26 1226 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC18874  Trillium ovatum subsp. oettingeri J. O. Sawyer 1968-6-18 185 Siskiyou Above S Russian Creek on W side. 1463 Comment
  UC1409210  Trillium ovatum subsp. oettingeri Frederick W. Oettinger 1967-6-27 124 Siskiyou off Music Creek Log rd. Salmon Mts, High Lake Basins, English Peak vicinity, Marble (ne. 1/4 of n.w. 1/4 of Sect. 23, Etna Quad.) 1731 Comment
  HSC86562  Trisetum cernuum D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar, vicinity of Haypress Meadows 1372 Comment
  HSC26705  Trisetum spicatum William J. Ferlatte 1971-9-18 1384 Siskiyou Caribou Basin. 2226 Comment
  POM352884  Trisetum spicatum Anonymous 1908-07 9205 Siskiyou Marble Mountains. Black Marble Mtns. Comment
  RSA233685  Trisetum spicatum R. F. Thorne, Frederick W. Oettinger 1969-8-10 38957 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  RSA256705  Triteleia crocea J. P. Smith 1974-5-25 7508 Siskiyou 2.4 miles west of its jct. with State Route 3. 976 Comment
  RSA120195  Triteleia hyacinthina S. S. Tillett 1956-7-11 682 Siskiyou Meadows on both sides of Scott Mtn. divide, near campground; Siskiyou-Trinity cos. line, about 8 miles SE of Callahan 1616 Comment
  CAS-BOT-BC522337  Triteleia hyacinthina Alice Eastwood; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  RSA12615  Tsuga mertensiana C. B. Wolf 1934-7-5 5970 Siskiyou North side of main ridge, 2 8/10 miles from Dry Lake Lookout on road to Horse Creek, Siskiyou Mountains. 2134 Comment
  CAS-BOT-BC80249  Tsuga mertensiana subsp. grandicona W. R. Dudley 1900-10-22 s.n. Siskiyou on Mt. Eddy Comment
  CAS-BOT-BC80260  Tsuga mertensiana subsp. grandicona Gilbert Muth 1966-7-29 131 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC68372  Typha latifolia J. P. Smith, Steve Selva 1970-7-15 4354 Siskiyou Klamath National Forest, road to Happy Camp. 732 Comment
  HSC46194  Uropappus lindleyi Jennifer Whipple 1977-4-30 1886 Siskiyou Scott Valley near Weston Gulch 854 Comment
  RSA68865  Vaccinium A. E. Culbertson 1943-6-23 91 Siskiyou On e. shore of Castle Lake (also at n.w. corner), 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
  CAS-BOT-BC199199  Vaccinium cespitosum Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh [Sky High] Lake Comment
  HSC19350  Vaccinium cespitosum J. O. Sawyer 1968-7-23 575 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  HSC19515  Vaccinium cespitosum J. O. Sawyer 1969-8-1 1679 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  RSA285942  Vaccinium cespitosum H. E. Brown 1897-7-15 520 Siskiyou South side Mt. Shasta. Comment
  HSC19359  Vaccinium membranaceum J. O. Sawyer 1968-9-9 655 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  JEPS66683  Vaccinium membranaceum Joseph P. Tracy 1935-8-1 14419 Siskiyou 3 mi e of Salmon Summit (Head of Knownothing Creek); Knownothing Creek 1767 Comment
  UC1409403  Vaccinium membranaceum Frederick W. Oettinger 1968-9-5 721 Siskiyou near Hancock Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1935 Comment
  CAS-BOT-BC199480  Vaccinium parvifolium Elmer I. Applegate 1930-8-11 6602 Siskiyou Cook and Green Creek, Siskiyou Mountains, Applegate River Watershed Comment
  RSA8228  Vaccinium parvifolium Elmer I. Applegate 1930-8-11 6602 Siskiyou Cook and Green Creek, Siskiyou Mountains, Applegate River watershed. Comment
  HSC19527  Vaccinium scoparium J. O. Sawyer 1969-8-5 1735 Siskiyou W of Little Duck Lake 2073 Comment
  UCD13278  Vaccinium scoparium K. F. Mawdsley 1996-7-9 12 c Siskiyou California, Siskiyou County. Russian Wilderness in Klamath NF. T40N, R9w, NW 1/4 of Section 19, Eaton Peak 7.5 topo. Elevation 6680. Comment
  UCR38387  Vaccinium uliginosum subsp. occidentale G. R. Ballmer, G. F. Pratt 1985-6-19 s.n. Siskiyou Trinity Mtns, Cedar Lake, WNW of Dunsmuir, c. 1 mi north of Gumboot Lake 1738 Comment
  HSC87235  Vahlodea atropurpurea K. Berg, Stephanie Bennett 1986-8-25 653 Siskiyou Salmon-Trinity Alps Wilderness, headwaters of Little S Fork of Salmon River, above Little S Fork Lake 1982 Comment
  POM259584  Vahlodea atropurpurea J. T. Howell 1939-8-3 s.n. Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  UC195254  Valeriana sitchensis subsp. sitchensis Annie M. Alexander and Louise Kellogg 1911-6-18 158 Siskiyou Jackson Lake 1798 Comment
  SBBG26966  Valerianella locusta L. C. Wheeler 1935-5-11 3485 Siskiyou Siskiyou Mtns 609 Comment
  CHSC2323  Veratrum californicum var. californicum V. Holt 1932-7-10 Siskiyou Mt. Shasta City. 1097 Comment
  HSC36208  Veratrum californicum var. californicum John Rehling 1975-8-11 104 Siskiyou S end of Little Duck Lake Comment
  HSC60768  Veratrum californicum var. californicum Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  UC455538  Verbascum blattaria I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  RSA256600  Veronica alpina var. alterniflora J. P. Smith 1974-5-25 7467 Siskiyou Along road 8, 4.7 mi. west of its junction with State Route 3. 1159 Comment
  HSC41803  Veronica americana Brent Whiteley 1975-8-1 119 Siskiyou Ti Creek, Klamath National Forest 671 Comment
  HSC86528  Veronica americana D. K. Imper 1987-7-22 Siskiyou 8 mi. E of Somes Bar, near Jawbone Camp 1372 Comment