Search Results — 2000 specimen records retrieved (1367 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77929  Abies G. A. Coleman 1901-7-31 35 Siskiyou west of forks of Salmon River Comment
  UC1409511  Abies concolor Frederick W. Oettinger 1968-9-10 809 Siskiyou on steep slope ne of English Lake outlet (w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
  SBBG133153  Abies concolor B. C. Templeton 1968-6-13 11331 Siskiyou Mt Shasta, on rd to ski bowl 2835 Comment
  HSC31508  Abies lasiocarpa Steve Selva, Roger Jensen 1974-8-25 52 Siskiyou W end of Little Duck Lake Comment
  JEPS59142  Abies lasiocarpa var. lasiocarpa J. O. Sawyer 1968-10-7 754 Siskiyou and surrounding forest w Little Duck Lake; Etna Quad 1935 Comment
  UCSC001102  Abies magnifica var. shastensis Peter Kamb 1946-8-11 381 Siskiyou Horse camp - S.W. slope of Mt. Shasta 2499 Comment
  CAS-BOT-BC203224  Abutilon W. R. Dudley 1899-8-15 s.n. Siskiyou Near trail to Black Fox Mountain Comment
  RSA96934  Acer circinatum Percy C. Everett, E. K. Balls 1954-10-11 20270 Siskiyou South fork of Sacramento River, 3 miles southwest from town of Mt. Shasta on road to Castle Lake 884 Comment
  CAS-BOT-BC331015  Acer glabrum var. glabrum Doris K. Kildale 1928-7-2 5339 Siskiyou Salmon Summit via Horn Creek trail 1981 Comment
  CAS-BOT-BC330990  Acer glabrum var. glabrum Elmer I. Applegate 1923-9-7 3969 Siskiyou Siskiyou Mountains, Klamath River Watershed. Comment
  JEPS86134  Acer glabrum var. torreyi Wayne Roderick 1956-2 Siskiyou near start of trail to Little Castle Lake (Castle Lake); Castle Lake 1676 Comment
  UCSB12088  Acer macrophyllum Breedlove, Dennis 1962-6-10 Siskiyou Indian Creek along Indian Creek Road, 10.5 miles northwest of Happy Camp; Siskiyou Mountains 518 Comment
  CAS-BOT-BC336937  Acer negundo var. californicum Geo. D. Butler 1910-5-22 1384 Siskiyou Yreka Creek Comment
  HSC68420  Achillea millefolium Maralyn A. Renner 1980-6-9 856 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  UC630400  Achillea millefolium Annetta Carter 1939-8-21 1476 Siskiyou summit of peak above se end (12 mi sw of Etna) Taylor Lake; Salmon Mountains 2286 Comment
  CAS-BOT-BC18867  Achillea millefolium William Bridge Cooke 1939-7-21 13705 Siskiyou Mount Shasta, above and south of the Municipal Spring along an old road 1280 Comment
  CAS-BOT-BC260332  Achnatherum hymenoides J. R. Swallen 1940-6-4 15001 Siskiyou Mount Shasta. Along the Bolam Road 1219 Comment
  CAS-BOT-BC210718  Achnatherum lemmonii A. A. Heller 1905-6-1 7934 Siskiyou Along the Sacramento River between Upper Soda Spring and near Shasta Retreat Comment
  UCD50720  Achnatherum lemmonii Beecher Crampton 1956-8-21 3831 Siskiyou 1/2 mile northeast of Gumboot Lake, the headwater of the south fork of the Sacramento River, Siskiyou County. 1767 Comment
  RSA47651  Achnatherum lemmonii var. lemmonii Roxana S. Ferris, Laura Lorraine 1948-06 11791 Siskiyou Scott Mountain Road south of Callahan Comment
  CAS-BOT-BC216930  Achnatherum occidentale Ralph K. Gierisch 1968-8-6 3362 Siskiyou Elk Flat, Shasta-Trinity forest 1310 Comment
  UCD37087  Achnatherum occidentale Beecher Crampton 1956-8-21 3832 Siskiyou Siskiyou County, 1 mile northeast of Gumboot Lake. 1676 Comment
  CAS-BOT-BC210874  Achnatherum occidentale subsp. californicum R. E. Frenkel 1965-6-14 954 Siskiyou On Everitt Memorial Highway, 2.7 miles north of McCloud River RR crossing near Mount Shasta 1399 Comment
  CAS-BOT-BC210875  Achnatherum occidentale subsp. californicum John Thomas Howell 1937-7-22 13258 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CDA18406  Achnatherum occidentale subsp. pubescens G. D. Barbe, P. Hiatt & M. Keffer 1980-6-5 2809 Siskiyou Cascade Range; Mt. Shasta Reforestation area, north of Mt. Shasta city on Everitt Memorial Hwy to Panther Meadows ski area. 1097 Comment
  UC166597  Achyrachaena mollis Geo. D. Butler 1910-5-8 1312 Siskiyou drylands near Yreka Comment
  HSC71632  Acmispon micranthus J. P. Smith 1973-5-5 6535 Siskiyou Scott Bar along the Scott River Comment
  HSC69335  Aconitum columbianum subsp. columbianum John Palmer 1980-8-13 771 Siskiyou Dead Cow Creek, near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  CAS-BOT-BC412919  Aconogonon davisiae Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Skyhigh Lake Comment
  HSC61848  Aconogonon davisiae Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  UCSB27378  Aconogonon davisiae Wilken, Dieter 1969-7-26 Siskiyou Above summit of Mt. Shasta Ski Bowl Road, south slope of Mt. Shasta 3200 Comment
  HSC19286  Aconogonon davisiae J. O. Sawyer 1969-7-9 1240 Siskiyou Steep hillside above S Sugar Lake 2134 Comment
  UCD98564  Aconogonon newberryi J. M Tucker 1950-7-23 1940 Siskiyou Panther Meadows, Mt. Shasta. 2407 Comment
  CAS-BOT-BC418815  Aconogonon phytolaccifolium Doris K. Kildale 1928-8-20 6607 Siskiyou Lily Pad Lake, near Hancock Lookout on trail to Marble Mountain Comment
  SEINET11261967  Adenocaulon bicolor Alv Dan Youngberg 1964-7-19 96 Siskiyou Along west branch of Indian Creek.; 0 Comment
  CAS-BOT-BC68953  Adiantum aleuticum L. E. Smith 1913-7-12 475 Siskiyou Castle Lake Comment
  SEINET10470216  Adiantum aleuticum G. B. Grant 1902-9-2 Grant UMO 32128 Siskiyou Collected at Shasta Springs northern keal. Comment
  SEINET3153138  Adiantum aleuticum G. B. Grant 25 Siskiyou Shasta Springs, No. Cent. Cal. Comment
  CHSC91255  Aegilops cylindrica Lowell Ahart; John Dittes 2005-6-10 12122 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  JEPS107660  Aegilops cylindrica Lowell Ahart, John Dittes 2005-6-10 12122 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada 785 Comment
  CDA43425  Aegilops cylindrica Dustin Johnson 2015-5-29 PDR# 470 P06027675 Siskiyou Vicinity of Montague. 0 Comment
  CAS-BOT-BC29447  Ageratina occidentalis John Thomas Howell 1939-8-8 15138 Siskiyou Between Sky High Valley and Marble Valley, Marble Mountains Comment
  HSC46721  Ageratina occidentalis William J. Ferlatte 1976-9-22 1855 Siskiyou 200 yds. SE of mail tailings; Yellow Rose Mine 2043 Comment
  RSA45346  Ageratina occidentalis Dorothy Parker 1946-8-18 s.n. Siskiyou Rail Creek 1220 Comment
  RSA50159  Ageratina occidentalis E. K. Balls 1949-7-10 13951 Siskiyou 1.5 miles from Finlay Camp, road from Etna to Sawyer's Bar. 817 Comment
  CAS-BOT-BC15478  Agoseris X dasycarpa Elmer I. Applegate 1923-8-17 3845 Siskiyou West side of Medicine Lake Comment
  CHSC253  Agoseris aurantiaca V. Holt 1943-8-14 Siskiyou Marble mountains. 1828 Comment
  JEPS97916  Agoseris aurantiaca var. aurantiaca R. Raiche, H. Forbes, K Zadnik 1989-4-10 61 Siskiyou W of Weed, 5.4 km. on Parks Creek Rd. toward Mt. Eddy from Stewart Springs Rd. 1506 Comment
  RSA14496  Agoseris glauca var. dasycephala Elmer I. Applegate 1923-8-18 3850 Siskiyou 2 miles east of Medicine Lake Comment
  JEPS94398  Agoseris monticola Vernon Oswald and Lowell Ahart 1997-7-28 8797 Siskiyou on the meadow s of Schonchin Spring Campground at Medicine Lake Medicine Lake 2057 Comment
  JEPS36266  Agoseris retrorsa Geo. D. Butler 1908-7-20 302 Siskiyou Humbug Creek Comment
  CDA1688  Agropyron desertorum T. C. Fuller 1963-8-26 11161 Siskiyou Butte Valley; North limits of Macdoel. 0 Comment
  CAS-BOT-BC126981  Agrostis exarata Wm. Bridge Cooke 1938-7-29 11410 Siskiyou Mount Shasta. Above Bear Springs. 1676 Comment
  UCD52131  Agrostis exarata Beecher Crampton 1956-8-21 3830 Siskiyou 1/2 mile northeast Gumboot Lake, headwater of the south fork of the Sacramento River. 1767 Comment
  CAS-BOT-BC139574  Agrostis gigantea Wm. Bridge Cooke 1938-9-17 11693 Siskiyou Mount Shasta. Horse Camp. 2438 Comment
  UCD52795  Agrostis idahoensis A. H. Murphy 1954-8-11 54 -A Siskiyou Round Meadow, Klamath National Forest, U.S.F.S. 1676 Comment
  CAS-BOT-BC138943  Agrostis pallens Doris K. Kildale 1928-7-25 5914 Siskiyou Klamath River - Mack's Creek near Hamburg. Comment
  RSA239092  Agrostis pallens Frederick W. Oettinger 1969-8-14 1377 Siskiyou At inlet to Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  RSA603997  Agrostis pallens L. C. Wheeler 1934-8-14 3144 Siskiyou White Mountain: East end. 1767 Comment
  UC1265350  Agrostis pallens Frederick W. Oettinger 1969-8-22 1488 Siskiyou lower meadow at margin of meadow woods Salmon Mountains, Marble Mountain Wilderness Area, Horse Ran 1767 Comment
  UC1265351  Agrostis pallens F. W. Oettinger 1969-8-19 1456 Siskiyou head of wet meadow s big bare area between King David Peak and Abbot's Basin; Salmon Mountains 1905 Comment
  CAS-BOT-BC138697  Agrostis scabra E. Palmer 1892-1-1 2636 Siskiyou Near Mount Shasta. Comment
  HSC30583  Agrostis scabra Frederick W. Oettinger 1968-9-7 751 Siskiyou Marble Mtn. Wilderness Area, N end of Hancock Lake. 1951 Comment
  UCD53399  Agrostis scabra R. Tofsrud 1950-7-1 s.n. Siskiyou E side of Mt. Shasta. Comment
  CAS-BOT-BC138480  Agrostis variabilis John Thomas Howell 1937-7-24 13419 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  UCD35443  Agrostis variabilis Beecher Crampton 1956-8-22 3857 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  POM211392  Aira caryophyllea L. C. Wheeler 1934-6-4 2647 Siskiyou Dry east slope in open forest. Horse Creek. 762 Comment
  UC164477  Allium acuminatum Geo. D. Butler 1909-5-26 788 Siskiyou hill near Yreka Comment
  SEINET182277  Allium acuminatum L. C. Wheeler 1935-1 Siskiyou 0 Comment
  HSC30437  Allium campanulatum Frederick W. Oettinger 1969-7-28 1089 Siskiyou Marble Mtn. Wilderness Area, N of Tom's Laver Pond 1982 Comment
  CAS-BOT-BC466699  Allium cratericola A. M. Vollmer; L. Beane 1951-5-31 17 Siskiyou Near highway, Scott Mountain Comment
  RSA78820  Allium crenulatum Philip A. Munz 1952-7-2 17898 Siskiyou Baldy Mountain ca. 6 miles west (by air) of Happy Camp. 1738 Comment
  HSC76636  Allium falcifolium K. T. Stillman 1976-6-25 54 Siskiyou Marble Mountain Wilderness Area. 1829 Comment
  SEINET196192  Allium falcifolium R. S. Ferris, L Lorraine 1948-6-12 11840 Siskiyou Gazelle Mtn grade rd between Callahan and Gazelle 1500 Comment
  UC593521  Allium falcifolium E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1913 Siskiyou about 7 mi sw Yreka (s of highway from Yreka to Fort Jones); Forest House Mt. 1363 Comment
  CAS-BOT-BC469232  Allium falcifolium L. R. Short 1933-6-8 125 Siskiyou Klamath Forest, Peak near Cottonwood Peak 1584 Comment
  RSA17426  Allium parvum Elmer I. Applegate 1925-4-26 4238 Siskiyou Ridge between Tule Lake and Lower Klamath Marsh. 1372 Comment
  CAS-BOT-BC384652  Allium validum Andrew Townesmith; Karen M. Meyer 2007-7-30 876 Siskiyou Shasta-Trinity National Forest. Off county road A-10, mile 12.6 (from beginning of road in Mount Shasta City), Panther Meadow campground vicinity 2284 Comment
  HSC23661  Allium validum J. O. Sawyer 1969-8-5 1790 Siskiyou Along Sugar Creek. 1921 Comment
  HSC25682  Allium validum J. O. Sawyer 1969-8-5 1758 Siskiyou W of Little Duck Lake 2073 Comment
  HSC72612  Allotropa virgata Gail Newton 1980-6-20 543 Siskiyou Near Bald Mtn. 1326 Comment
  UC21634  Allotropa virgata Harley P. Chandler Jun 1901 1546 Siskiyou Ridges and Meadows near Marble Mountain 1828 Comment
  CAS-BOT-BC171248  Alnus L. E. Smith 1913-3-28 616 Siskiyou Weed Comment
  CAS-BOT-BC171410  Alnus incana subsp. tenuifolia A. A. Heller 1916-8-24 12559 Siskiyou near Sisson 10 Comment
  HSC4964  Alnus incana subsp. tenuifolia J. O. Sawyer 1968-6-25 343 Siskiyou Along Horse Range Creek 1646 Comment
  SFV847  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou Marble Mountain Wilderness Area, Lower Red Rock Valley. At edge of Red Rock Creek in moist soil in vicinity of cabin. 1494 Comment
  CAS-BOT-BC169638  Alnus rhombifolia L. E. Smith 1914-5-21 705 Siskiyou Weed Comment
  HSC33980  Alnus rhombifolia J. P. Smith 1974-5-25 7442 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  UCR19354  Alyssum alyssoides Edwin Kline 1920-6-24 s.n. Siskiyou [no specific locality] 1067 Comment
Read comments
Sep 26 2018
  POM95264  Alyssum alyssoides Geo. D. Butler 1910-5-7 1304 Siskiyou Yreka. Comment
  HSC2902  Amaranthus albus R. C. Wunner 1965-8-27 490 Siskiyou California Lava Beds National Monument, top of petroglyphs Comment
  UC1409347  Amelanchier alnifolia var. pumila Frederick W. Oettinger 1968-8-2 362 Siskiyou meadow s Diamond Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2011 Comment
  CAS-BOT-BC136884  Amelanchier utahensis John Thomas Howell; Gordon H. True 1972-6-8 48855 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  CHSC69085  Amelanchier utahensis Vernon Oswald; Lowell Ahart 1997-7-28 8793 Siskiyou Southeast of Medicine Lake at Paynes Springs. Paynes Creek Canyon north of the campground. 1981 Comment
  SBBG16035  Amelanchier utahensis D. Myrick 1961-6-20 279 Siskiyou rd to Bear Springs E of Mt Shasta City 1371 Comment
  CAS-BOT-BC45214  Anaphalis margaritacea L. E. Smith 1914-7-6 753 Siskiyou Cantara Comment
  HSC67684  Anemone deltoidea John Palmer 1980-7-24 629 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  UC1736571  Anemone deltoidea Dean W. Taylor 1972-7-3 1576 b Siskiyou Salmon Mountains, near Little Duck Lake Comment
  CAS-BOT-BC391799  Anemone deltoidea Gilbert Muth 1965-8-3 s.n. Siskiyou Pothole in Marble, Marble Valley Comment
  CAS-BOT-BC94417  Anemone deltoidea R. C. Wenk 2005-7-15 233 Siskiyou Trinity Alps, above South Fork of the Salmon River, along the Yellow Rose Mine trail, next to a creek 1828 Comment
  HSC69438  Anemone deltoidea John Palmer 1980-8-13 797 Siskiyou Dead Cow Creek near USFS Rd. 47N44, Beaver Creek Rd. 1616 Comment
  POM100558  Anemone deltoidea Geo. D. Butler 1910-7-9 1713 Siskiyou Marble Mtn. 1677 Comment
  RSA105354  Anemone deltoidea G. D. Barbe 1955-7-6 135 Siskiyou Along northeast shore of Taylor Lake, Salmon Mtns. 1951 Comment
  RSA211140  Anemone deltoidea William J. Ferlatte 1966-6-22 89 Siskiyou Along the South Fork of the Salmon River between the campgrond and Carter's; Trinity Alps. 1524 Comment
  RSA760538  Anemone deltoidea Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63362 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. Comment
  CAS-BOT-BC391859  Anemone drummondii Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou West side of Gumboot Lake, Trinity Mts. 1828 Comment
  UC1736533  Anemone drummondii Dean W. Taylor 1972-7-4 1606 Siskiyou near Lily Pad Lake, Cook and Green Pass region 1981 Comment
  HSC22418  Anemone lyallii J. O. Sawyer 1969-7-3 1047 Siskiyou Near Lipstick Lake 1951 Comment
  CHSC1428  Anemone occidentalis V. Holt 1932-7-10 Siskiyou Mount Eddy. 2133 Comment
  HSC55712  Anemone occidentalis G. L. Clifton, Griswold 1979-7-26 10123 Siskiyou Near Salmon Mtn., close to the town of Forks of Salmon 2104 Comment
  UC618888  Anemone occidentalis W. Bridge Cooke 1938-7-21 11601 Siskiyou s.w. slopes Red Butte; Mt. Shasta, Red Butte Comment
  UC375346  Anemone occidentalis Geo. D. Butler 1909-7-15 900 Siskiyou head of Taylor Creek; Salmon Range, Taylor Creek 2133 Comment
  UC637114  Angelica arguta Edward Lee 1934-8-14 1106 Siskiyou near summit of Little Grayback (Siskiyou-Del Norte County line); near summit of Little Grayback 1865 Comment
  SEINET13943378 Image available Angelica arguta W. J. Ferlatte 1966-1 244 Siskiyou Trinity Alps of northern California; Big Flat. wooded area near public camp, alt. 5000 ft T37N R9W SEC18. 1524 Comment
  RSA237410  Angelica tomentosa var. tomentosa Frederick W. Oettinger 1967-7-26 194 Siskiyou Along Crapo Peak Ridge about mid-way between summit and where trail to Toms Lake crosses ridge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2210 Comment
  HSC82554  Antennaria dimorpha Thomas W. Nelson, Jane P. Nelson 1979-5-26 4714 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  UC61506  Antennaria dimorpha W. J. Mooney 1903-4-1 Siskiyou Yreka Comment
  CAS-BOT-BC58719  Antennaria geyeri Alice Eastwood 1921-7-25 10814 Siskiyou Bigelows, McCloud River Comment
  CHSC71467  Antennaria geyeri Vernon H. Oswald; Lowell Ahart 1998-7-21 9312 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
  JEPS13177  Antennaria geyeri W. L. Jepson 1894-1 Siskiyou Sisson Comment
  RSA93675  Antennaria geyeri F. W. Peirson 1923-7-20 3893 Siskiyou 2 miles below camp on Whitney Creek, Mt. Shasta. Comment
  HSC68582  Antennaria howellii Maralyn A. Renner 1980-6-24 1069 Siskiyou 1/2 mi. E of Cook and Green Pass 1555 Comment
  HSC29211  Antennaria howellii Frederick W. Oettinger 1986-9-3 679 Siskiyou High Lake Basins of the Marble Mountains Wilderness Area; between Horse Range Lake and 'Horses Hole' pond 1860 Comment
  JEPS84311  Antennaria media L. R. Heckard with J. Hickman et al. 1986-7-17 6534 Siskiyou along road and area and camp overlooking s end Alex Hole; Condrey Mt. 1980 Comment
  POM229877  Antennaria media L. C. Wheeler 1935-7-23 3690 Siskiyou Jaynes Canyon. Siskiyou Mts., Mt. Diablo Mer. 1951 Comment
  RSA238725  Antennaria media Frederick W. Oettinger 1969-7-14 1016 Siskiyou Between Charmaine Lake and Abbot's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  SJSU6486  Antennaria rosea R. W. Trivelpiece 1972-6-9 100 Siskiyou c. 4 mi E of Grass Lake, west-central Siskiyou County 1524 Comment
  UC1409469  Antennaria rosea Frederick W. Oettinger 1968-8-5 402 a Siskiyou Shasta Ridge, between Diamond Lake and English Peak The Salmon Mountains, Marble Mountain Wilderness Area, Engli 2072 Comment
  POM39432  Antennaria rosea Geo. D. Butler 1910-6-5 1519 Siskiyou Log Lake, Shackleford Creek. 1616 Comment
  RSA184766  Antennaria rosea Gilbert Muth 1966-7-25 451 Siskiyou Marble Mountain lookout, Marble Mountains. 2098 Comment
  HSC22  Antennaria rosea subsp. rosea William J. Ferlatte 1966-6-22 80 Siskiyou Josephine Lake Basin 1677 Comment
  CAS-BOT-BC84731  Antennaria umbrinella Ira L. Wiggins 1955-7-27 13536 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC21957  Apocynum androsaemifolium J. O. Sawyer 1969-8-18 1975 Siskiyou S of S Sugar Lake 2104 Comment
  JEPS49801  Apocynum androsaemifolium Geo. D. Butler 1908-8-9 77 Siskiyou Woolly Creek, Cold Spring 1676 Comment
  UC163992  Apocynum androsaemifolium Geo. D. Butler 1908-8-9 77 Siskiyou near Cold Spring (Woolly Creek) Comment
Read comments
May 9 2012
  UCR47855  Apocynum androsaemifolium 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-BC397939  Aquilegia formosa Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Gumboot Lake, Trinity Mts. 1828 Comment
  UC853767  Aquilegia formosa John Thomas Howell 1939-8-10 15278 Siskiyou Sky High Valley Marble Mtns Comment
  CAS-BOT-BC394988  Aquilegia formosa Gilbert Muth 1965-8-5 s.n. Siskiyou Stream behind Blk. Mt. Comment
  RSA99546  Aquilegia formosa var. truncata Geo. D. Butler 1908-8-9 352 Siskiyou Mountainside S of Marble Valley. 1829 Comment
  HSC46817  Arabis glabra William J. Ferlatte 1974-7-14 1520 Siskiyou Big Flat, near S fork of Salmon River, E side of Big Flat Campground and lower slopes of Grouse Ridge 1524 Comment
  HSC90626  Arabis holboellii var. retrofracta Jennifer Whipple 1977-7-22 2038 Siskiyou Ridgecrest between Dobkins Lake and Dale Creek drainage Comment
  UC673139  Arabis modesta Lincoln Constance and Reed C. Rollins 1942-5-13 2907 Siskiyou 4 mi e Seiad; Klamath-Siskiyou Region, Klamath River 457 Comment
  HSC27307  Arabis platysperma J. P. Smith, J. O. Sawyer 1971-9-16 4770 Siskiyou Ridge S of Bingham Lake. 2134 Comment
  RSA0129719  Arabis platysperma William J. Ferlatte 1967-8-21 1071 Siskiyou Sawtooth Ridge between Caribou Basin and Little South Fork Lake; Trinity Alps. 2287 Comment
  HSC66304  Arabis platysperma var. howellii Maralyn A. Renner 1980-8-7 2377 Siskiyou Klamath National Forest, NW flank of Preston Peak, near summit 2180 Comment
  RSA0129829  Arabis platysperma var. platysperma Frederick W. Oettinger 1968-8-4 390 -b Siskiyou Trail N of Crapo Peak ridge. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2195 Comment
  HSC237  Arabis puberula William J. Ferlatte 1967-7-6 608 Siskiyou Dorleska Summit 2134 Comment
  HSC90570  Arabis puberula Jennifer Whipple 1976-6-11 961 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  POM253573  Arabis puberula C. L. Hitchcock, J. S. Martin 1939-7-9 5322 Siskiyou 1/2 mile SE of King s Castle, Marble Mts. 1829 Comment
  JEPS101148  Arabis pycnocarpa var. pycnocarpa Dean W. Taylor 1996-6-19 15715 Siskiyou Lime Gulch; bordering Shasta Valley (about 15 miles south of Yreka) 1188 Comment
  HSC233  Arabis sparsiflora var. subvillosa William J. Ferlatte 1967-7-26 763 Siskiyou NW side of Caribou Mtn. 1829 Comment
  RSA0128814  Arabis suffrutescens Frederick W. Oettinger 1968-8-16 540 Siskiyou West side of Red Hill N of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2088 Comment
  UC164309  Aralia californica Geo. D. Butler 1908-8-24 457 Siskiyou Russian Creek, Eldredge's Corral Comment
  RSA239009  Aralia californica Frederick W. Oettinger 1966-7-25 35 Siskiyou Along Timber Gulch Bank, Salmon River District, Klamath National Forest, Cecilville 701 Comment
  SEINET2471229  Arceuthobium abietinum R. L. Mathiasen 2008-9-16 2008 -31 Siskiyou Ca. 4.8 km E. of Etna Summit on road to Sawyers Bar 1630 Comment
  CAS-BOT-BC407725  Arceuthobium abietinum F. G. Hawksworth; D. Wiens 1964-7-1 641 Siskiyou on Mt. Shasta Ski Area Road, 5 miles from US 99 (Mt. Shasta) 1524 Comment
  SEINET2471231  Arceuthobium abietinum subsp. wiensii R. L. Mathiasen 2008-9-16 2008 -34 Siskiyou 18.4 km W. of Indian Creek road on forest road 17N11 1310 Comment
  SEINET2471294  Arceuthobium abietinum subsp. wiensii R. L. Mathiasen 2007-9-16 2007 -47 Siskiyou Ca. 18 km W. of Indian Creek on forest road 17N11 1340 Comment
  SEINET1916096  Arceuthobium californicum R. L. Mathiasen 2005-1 2005 -36 Siskiyou 15.4 km NW of St. Rte. 96 on forest rd. 15 1100 Comment
  RSA237459  Arceuthobium californicum Frederick W. Oettinger 1969-9-5 1677 Siskiyou Between Abbotts Lake and Wiregrass Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  CHSC75764  Arceuthobium campylopodum Vernon H. Oswald; Lowell Ahart 1999-7-5 9816 Siskiyou Hwy. 3 4.0 mi southeast of Gazelle-Callahan Hwy. 1365 Comment
  JEPS40134  Arceuthobium campylopodum W. L. Jepson July 1894 Siskiyou Sisson Comment
  UC1409472  Arceuthobium campylopodum Frederick W. Oettinger 1968-9-5 712 Siskiyou between Diamond and Hancock Lakes Salmon Mountains, Marble Mountain Wilderness Area, English P 2011 Comment
  SEINET2140126  Arceuthobium cyanocarpum R. L. Mathiasen 2007-1 2007 -54 Siskiyou 1.6 km N. of Park Creek trail head on forest road 17. 2000 Comment
  SEINET2471356  Arceuthobium cyanocarpum R. L. Mathiasen 2007-9-20 2007 -54 Siskiyou 1.6 km N. of Park Creek trail head on forest road 17 2000 Comment
  CAS-BOT-BC40019  Arctostaphylos nevadensis Gilbert Muth 1969-8-10 1335 Siskiyou Ridge w. of Boulder Peak 2377 Comment
  CAS-BOT-BC40024  Arctostaphylos nevadensis W. B. C. 1938-8-18 11504 Siskiyou Mount Shasta - Horse Camp Slopes Hudsonian 2514 Comment
  CAS-BOT-BC45439  Arctostaphylos nevadensis H. A. Thomas; J. H. Thomas 1954-7-24 4506 Siskiyou Salmon-Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 mi. e. of Cecilville. 1828 Comment
  CHSC587  Arctostaphylos nevadensis V. Holt 1932-6-26 Siskiyou Mt. Eddy. 1828 Comment
  HSC4923  Arctostaphylos nevadensis J. O. Sawyer 1968-7-22 531 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  SEINET11991025  Arctostaphylos nevadensis S. Edwards, Roderick, W. 1983-1 102 Siskiyou on Cook & Green Pass E of pass 1524 Comment
  SEINET11989082  Arctostaphylos nevadensis subsp. knightii R. Raiche, Zadnik, K. 1982-1 20558 Siskiyou Deadwood Lookout near Yreka 1676 Comment
  CAS-BOT-BC46454  Arctostaphylos patula C. Hart Merriam 1919-9-23 s.n. Siskiyou Weed. Comment
  CAS-BOT-BC46469  Arctostaphylos patula Alice Eastwood 1917-9-2 6683 Siskiyou Shasta Springs. Comment
  CAS-BOT-BC46470  Arctostaphylos patula Alice Eastwood 1921-7-31 11022 Siskiyou Shasta Springs. Comment
  CAS-BOT-BC46480  Arctostaphylos patula Doris K. Kildale 1928-7-2 5340 Siskiyou Salmon Summit, on the Horn Creek Trail. 1981 Comment
  HSC18974  Arctostaphylos patula G. L. Clifton, Griswold 1979-6-28 6151 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  HSC29306  Arctostaphylos patula Frederick W. Oettinger 1969-7-29 1100 Siskiyou Marble Mountain Wilderness Area: High Lake Basins, due E of Uncle's Lake 1829 Comment
  OBI36635  Arctostaphylos patula David J. Keil 1983-7-3 17380 Siskiyou 11 mi NE of jctn with SR 3 along Gazelle-Callahan rd Comment
  UC410799  Arctostaphylos patula Mrs. Eric Anderson 1923-4-19 Siskiyou Shasta Springs Comment
  UC674758  Arctostaphylos patula C. Hart Merriam and V. B. 1899-10-6 Siskiyou Sisson Comment
  UC876449  Arctostaphylos patula Lewis S. Rose 1937-7-25 37596 Siskiyou Mt. Shasta City 1158 Comment
  SEINET11988199  Arctostaphylos patula var. coalescens W. Roderick, Sigg, J. 1981-1 s.n. Siskiyou between Horsetail & Cook & Green Pass 1341 Comment
  HSC60848  Arenaria serpyllifolia Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley. Bell Echo Meadow. 1524 Comment
  CAS-BOT-BC384754  Arenaria serpyllifolia var. serpyllifolia Alice Eastwood 1923-5-29 s.n. Siskiyou Cantara Comment
  CAS-BOT-BC384755  Arenaria serpyllifolia var. serpyllifolia John Thomas Howell 1937-7-23 13351 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UCSB63908  Arnica chamissonis Oswald, Vernon; Ahart, Lowell 1997-7-28 Siskiyou On the east side of Forest Route 15, 10.9 mi. north of Hwy. 89; T41N R2E Sect. 18; Lodgepole Pine Forest 1383 Comment
  RSA505435  Arnica chamissonis subsp. foliosa Rimo Bacigalupi 1957-6-27 5974 Siskiyou Grass lake, on route between Weed and Klamath Falls, 20 miles northeast of Weed 1545 Comment
  CAS-BOT-BC82404  Arnica discoidea Alice Eastwood 1923-5-18 11848 Siskiyou Shasta Springs Comment
  HSC61861  Arnica discoidea Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  UC581752  Arnica discoidea Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2455 Siskiyou Mount Shasta and vicinity Mount Shasta Comment
  UC892213  Arnica discoidea Alice Eastwood 1912-7-15 1105 Siskiyou Mc Cloud Comment
  CDA16952  Arnica latifolia G. F. Hrusa 1993-8-14 11398 Siskiyou Summit of pass betw. Happy Camp, Ca. and O'Brien, Or., just on Ca. side of state boundary. 1371 Comment
  HSC610  Arnica latifolia William J. Ferlatte 1967-7-26 765 Siskiyou NW side of Caribou Mtn.; near Browns Meadow 1829 Comment
  RSA238805  Arnica latifolia Frederick W. Oettinger 1968-8-10 460 Siskiyou Old trail along rock slide between Diamond Lake and Hancock Lake. Salmon Mtns. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1974 Comment
  UCD13280  Arnica latifolia K. F. Mawdsley 1996-7-9 13 a Siskiyou Russian Wilderness in Klamath NF. 1981 Comment
  CAS-BOT-BC82758  Arnica mollis Wm. Bridge Cooke 1938-9-8 11652 Siskiyou Squaw Creek Meadow, along Squaw Creek from the middle meadow to the lower meadow 2286 Comment
  UCD129170  Arnica mollis J. M. Tucker 1974-7-28 4322 Siskiyou Marble Mountain Wilderness Area, Haypress Meadows. 1463 Comment
  UCD129198  Arnica mollis A. H. Murphy 1956-8-16 56 Q Siskiyou Klamath N.F. 1981 Comment
  CAS-BOT-BC85064  Arnica parryi Gilbert Muth 1966-7-31 476 Siskiyou Damp rocky areas, north side of Black Mountain, Marble Mts. 2057 Comment
  JEPS24420  Arnica viscosa unknown Siskiyou Comment
Read comments
Jul 22 2010
  UC1494015  Arnica viscosa Gerald B. Straley 1977-6-6 2002 Siskiyou Mt. Shasta (s side) Mt. Shasta 2590 Comment
  CDA6799  Artemisia biennis R. Pederson, G. Pederson 1979-8-15 Siskiyou Lower Klamath National Wildlife Refuge. Comment
  RSA261515  Artemisia campestris subsp. borealis J. M. Tucker, L. K. Mann, Sandra Holloway 1963-8-18 3750 Siskiyou SW ridge of Black Mtn (Black Marble Mtn); Marble Mtn Wilderness Areas. 2134 Comment
  CAS-BOT-BC90743  Artemisia ludoviciana subsp. incompta John Thomas Howell 1939-8-8 15186 Siskiyou Black Mt., Marble Mt. Comment
  UCD77361  Artemisia tridentata subsp. vaseyana Robert E. Preston 2001-8-26 1771 Siskiyou Klamath National Forest, N slope of Rainbow Mountain. 2103 Comment
  RSA293186  Aruncus vulgaris J. M. Smith 1978-5-28 9956 Siskiyou Klamath National Forest, 7.6 miles SE of Somes Bar on the road along the Salmon River Comment
  UCD137842  Asarum caudatum J. M. Tucker; L. K. Mann 1963-7-9 3736 Siskiyou Canyon Creek Trail, ca. 1 mile east of Marble Valley Guard Station, Marble Mountain Wilderness Area. 1524 Comment
  SEINET10890225  Asclepias fascicularis H. E. Brown 1897-8-1 Brown 596 Siskiyou Mt. Shasta, S side Comment
  HSC93541  Asclepias speciosa G. Fred Hrusa 1997-9-18 14109 Siskiyou Shasta Valley, 1 mi. S of Gazelle on Old Hwy. 99 800 Comment
  JEPS80660  Asclepias speciosa W. B. and V. G. Cooke 1980-7-26 59013 Siskiyou Everitt Memorial Highway Mt. Shasta Comment
  RSA240059  Asclepias speciosa Frederick W. Oettinger 1969-8-12 1331 Siskiyou 1 mile from Etna Summit on road toward Etna. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  HSC60013  Asparagus officinalis M. A. Baker 1977-6-27 387 Siskiyou Happy Camp. Comment
  HSC92669  Aspidotis densa Jennifer Whipple 1978-10-6 2390 Siskiyou Mt. Eddy, N-facing slopes in the Eddy Creek Drainage 2317 Comment
  SEINET3868734  Aspidotis densa M. L. Conrad, Morris; Kenney 1973-6-3 7016 Siskiyou Matthew's Creek Campground on south fork of Salmon River.; 0 549 Comment
  UC1242059  Aspidotis densa Don Branscomb 1958-7-22 Siskiyou NE Siskiyou Co Comment
  UC1242062  Aspidotis densa Don Branscomb 1958-7-17 Siskiyou w Dunsmuir; Scott Mts Comment
  CAS-BOT-BC69554  Aspidotis densa Louis C. Wheeler 1934-6-28 2814 Siskiyou Little Soda Cr., Klamath Forest. 1432 Comment
  RSA686372  Aspidotis densa L. C. Wheeler 1934-6-28 2814 Siskiyou Head of Little Soda Creek, Sterling Mountain 1433 Comment
  POM58123  Aster eatonii E. B. Copeland 1903-8-13 3821 Siskiyou Sisson. 1067 Comment
  JEPS116601  Astragalus californicus J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -14 Siskiyou North side of Mt. Shasta south of Hwy 97; Hotlum Fire area burned in Feb 2006 1100 Comment
  CAS-BOT-BC27497  Astragalus californicus Edward Lee Greene 1876-5-9 764 Siskiyou near Yreka Comment
  CAS-BOT-BC186918  Astragalus inversus J. William Thompson 1936-7-9 13167 Siskiyou Lava slopes of Lava Beds Nat. Monument Comment
  RSA26469  Astragalus lentiginosus var. salinus Alice Eastwood, J. T. Howell 1940-6-14 8271 Siskiyou Lava Beds National Mon. near Schonchin Butte Comment
  JEPS54792  Astragalus purshii E. B. Copeland 1903-7-6 3557 Siskiyou Hornbrook Comment
  CAS-BOT-BC192918  Astragalus purshii var. lectulus John Thomas Howell 1939-8-4 15055 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  HSC82283  Astragalus purshii var. lectulus Thomas W. Nelson, Jane P. Nelson 1979-6-15 4803 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  RSA50193  Astragalus purshii var. lectulus E. K. Balls 1949-7-8 13911 Siskiyou Trail from Scott Mountain Camp to Carmen Lake; Scott Mountain. 1753 Comment
  UC1333513  Astragalus purshii var. purshii John F. Davidson 1947-5-17 4634 Siskiyou 5 mi from Callahan, 27 mi from Trinity Center, at first summit of Scott Mt. Road on n slope of Scott Mt. Comment
  CAS-BOT-BC210243  Astragalus purshii var. tinctus Dana York 2011-8-12 3050 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain ridge 2055 Comment
  HSC39321  Astragalus purshii var. tinctus J. P. Smith 1974-5-26 7385 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC71634  Astragalus purshii var. tinctus J. P. Smith 1973-5-5 6530 Siskiyou Scott Bar along the Scott River Comment
  JEPS116603  Astragalus purshii var. tinctus J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -16 Siskiyou North side of Mt. Shasta south of Hwy 97; Hotlum Fire area burned in Feb 2006 1090 Comment
  CHSC30658  Astragalus whitneyi var. siskiyouensis M. S. Taylor; W. Overton 1980-7-8 3091 Siskiyou On s side of 40N43, ca. 3 mi w of its jct with 40N26, at w end of Lake Siskiyou. 1432 Comment
  CHSC67491  Astragalus whitneyi var. siskiyouensis James D. Jokerst 1992-7-30 3428 Siskiyou Top of divide between Trinity River, summit of reddish mountain S of road crossing saddle. [no additional location data; W of Interstate 5? V. Oswald] Comment
  CAS-BOT-BC105086  Asyneuma prenanthoides R. C. Wenk 2008-7-25 953 Siskiyou National Forest road 41N16, going N from Forest Highway 93 / Cecilville Rd. towards Russian Wilderness 1592 Comment
  UCSB11069  Asyneuma prenanthoides Dearing, Hugh; Dearing, Margaret 1939-6-3 Siskiyou Near Scott's Bar Comment
  UC150679  Athyrium distentifolium var. americanum Dr. E. B. Copeland 1903-8-16 3917 Siskiyou Mt Shasta 2377 Comment
  UC399393  Athyrium distentifolium var. americanum Geo. D. Butler 1909-7-15 876 Siskiyou head of Taylor Creek Comment
  CAS-BOT-BC66198  Athyrium filix-femina var. cyclosorum John Thomas Howell 1939-8-3 14988 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC1333324  Athyrium filix-femina var. cyclosorum Dorothy Parker 1949-6-30 Siskiyou stream that empties into Etna Creek; Salmon Mts 1176 Comment
  UC637169  Athyrium filix-femina var. cyclosorum Edward Lee 1934-8-11 1032 Siskiyou e end Seiad Valley (Walker Creek, a tributary of Klamath River) 609 Comment
  CAS-BOT-BC66184  Athyrium filix-femina var. cyclosorum W. B. C. 1940-8-5 15407 Siskiyou in the Wagon Camp spring area 1737 Comment
  SEINET516325  Atriplex prostrata Vernon H. Oswald 1998-9-16 9650 Siskiyou Tour Route at Lower Klamath NWR 3 mi S of Hwy. 161. 1244 Comment
  CHSC72232  Atriplex rosea Vernon H. Oswald; Lowell Ahart 1998-9-16 9652 Siskiyou Return leg of the Tour Route at Lower Klamath NWR ca. 2 mi south of Hwy. 161. 1243 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
  UC1053434  Balsamorhiza deltoidea Rimo Bacigalupi and Arthur Holmgren 1950-4-24 3140 Siskiyou cliffs opposite of, along Sacramento River on e side of canyon, directly opposite railroad shops Dunsmuir; Sacramento River Comment
  HSC67996  Balsamorhiza sericea J. P. Smith 1976-5-21 8768 Siskiyou Klamath National Forest, FS Rd. 40N08, 6.9 mi. from its junction with Hwy. 3 1524 Comment
  SD73172  Bassia hyssopifolia Darley F. Howe 1969-8-31 Siskiyou 4.5 miles south of Dorris on highway 97. 1220 Comment
  HSC45196  Berberis aquifolium var. repens J. O. Sawyer, E. Cope 1977-6-21 2987 Siskiyou Along Kelsey Trail W of Bear Lakes 1677 Comment
  HSC65093  Berberis aquifolium var. repens J. P. Smith 1973-5-5 6436 Siskiyou Along Cook and Green Pass Rd. Comment
  CAS-BOT-BC76002  Berberis pumila Mrs. Eric Anderson 1923-4-19 s.n. Siskiyou Shasta Springs. 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
  JEPS117473  Berula erecta Lowell Ahart, John Dittes 2010-7-30 16934 Siskiyou Along the west edge of the Shasta River, about 30 yards northwest of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  JEPS16041  Berula erecta Willis L. Jepson July 1894 14212 Siskiyou Sisson Comment
  SBBG60376  Berula erecta L. Ahart, J. Dittes 2010-7-30 16934 Siskiyou W edge of Shasta River, ca. 30 yards NW of E Louie Rd Bridge, Shasta Big Springs Ranch, 1.6 mi (air) SW of Big Springs Lake, 4.6 mi (air) NW of Dwinnel Dam, 5.7 mi (air) SE of Grenada 716 Comment
  CAS-BOT-BC169491  Betula occidentalis Louis C. Wheeler 1934-6-27 2808 Siskiyou Cottonwood Cr., Klamath National Forest 792 Comment
  HSC68501  Blepharipappus scaber Maralyn A. Renner 1980-6-22 908 Siskiyou Slopes N of Little Shasta River 1372 Comment
  CDA10530  Blepharipappus scaber T. C. Fuller 1958-4-17 4825 Siskiyou 3 miles south of Gazelle. 0 Comment
  POM351060  Blepharipappus scaber Robert Gustafson 1985-10-19 3308 Siskiyou Stewart Mineral Springs resort. 1220 Comment
  CAS-BOT-BC15791  Boechera acutina John Thomas Howell 1937-7-23 13373 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  UC375280  Boechera breweri Geo. D. Butler 1910-3-5 1118 Siskiyou Shasta Rim Comment
  CAS-BOT-BC16020  Boechera breweri subsp. breweri Doris K. Kildale 1928-7-4 5502 Siskiyou Summit of divide between Salmon River and Scott Valley. Comment
  CAS-BOT-BC13815  Boechera howellii John Thomas Howell 1937-7-25 13444 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  LA204400  Boechera howellii L. Ellison; 1928-9-11 509 Siskiyou Mt Shasta 2743 Comment
  UCD77348  Boechera howellii Robert E. Preston 2001-6-30 1647 b Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W nw 1/4 of se 1/4 Section 14 1889 Comment
  CAS-BOT-BC25617  Boechera retrofracta Alice Eastwood; John Thomas Howell 1937-6-26 5031 Siskiyou Near Etna. Comment
  CAS-BOT-BC17216  Boechera rollei Wayne E. Rolle 1985-8-27 s.n. Siskiyou Near Lilypad Lake, Red Butte and Kangaroo Mountain. 1767 Comment
  CAS-BOT-BC25691  Boechera sparsiflora John Thomas Howell 1937-7-26 13567 Siskiyou Salmon River Canyon. Between Big Flat and Caribou Gulch. Comment
  CAS-BOT-BC25793  Boechera stricta Maxine Wilkes 1940-8-1 s.n. Siskiyou Marble Mountains. Deep Lake. Comment
  CAS-BOT-BC25922  Boechera suffrutescens Elmer I. Applegate 1923-8-17 3843 Siskiyou Medicine Lake. Comment
  CAS-BOT-BC25926  Boechera suffrutescens Thomas W. Nelson; Jane P. Nelson 1980-7-17 6094 Siskiyou Along Forest Service road 17, 0.5 mile north of summit at county line. Comment
  UC185184  Botrychium multifidum Geo. D. Butler 1910-7-13 1777 Siskiyou Shackleford Creek 1219 Comment
  HSC27675  Boykinia occidentalis Carl W. Mize 1972-6-8 34 Siskiyou Along main trail near Deer Lick Creek 351 Comment
  UC718020  Boykinia occidentalis Carl B. Wolf 1934-7-4 5928 Siskiyou 7/10 mi below mouth of Dillon Creek; Siskiyou Mountains, Klamath River, Dillon Creek 243 Comment
  CAS-BOT-BC36691  Brassica rapa Alice Eastwood 1912-7-16 1127 Siskiyou McCloud. Comment
  SEINET10879263  Brickellia greenei Andrew Townesmith, Karen M. Meyer 2007-7-28 Townesmith 862 Siskiyou Shasta-Trinity National Forest. Along Forest Service route 26, 4.1 miles west of forest boundary. T39N R5W S10. 1277 Comment
  SEINET5707333 Image available Brickellia greenei Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7693 Siskiyou Scott Mts. Collected along Road 17, 8.8 mi. SW from the intersection of I-5 and Stewart Spring Rd.; Scott Mountains 1586 Comment
  UCR108347  Brickellia greenei L. C. Wheeler 1952-9-18 6248 Siskiyou Siskiyou Mtns, South fork Indian Creek, near Happy Camp 333 Comment
  CDA39464  Brodiaea elegans E. Hale 1984-6-19 s.n. Siskiyou Deer Meadow Road near Yreka. 0 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
  UC60463  Bromus carinatus var. carinatus E. Palmer 1892-1 2626 Siskiyou near Mount Shasta Comment
  HSC103038  Bromus commutatus J. P. Smith 2014-6-7 13896 Siskiyou Along State Route 3 at its junction with the East Fork of the Scott River 994 Comment
  HSC102714  Bromus diandrus J. P. Smith 2013-6-18 13747 Siskiyou Camp Creek Recreation Area. 723 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
  SACT000689  Bromus sterilis Isabelle Kimber 1934-6-9 Siskiyou Abundant but thin stand. Chaparral. Comment
  HSC65333  Bromus suksdorfii J. P. Smith, J. O. Sawyer 1973-8-15 7327 Siskiyou N of Angel Lake 2012 Comment
  CAS-BOT-BC185604  Bromus tectorum A. A. Heller 1916-6-20 12405 Siskiyou Metcalf's Ranch, northeast base of Mount Eddy. 1188 Comment
  CHSC91335  Bromus tectorum Lowell Ahart; John Dittes 2005-6-9 12010 Siskiyou Pasture field, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  HSC43469  Bromus tectorum Maralyn O'Meara 1974-5-25 380 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  LA13847  Bromus tectorum Wm. Bridge Cooke; 1938-6-17 11039 Siskiyou Mount Shasta, along the Sisson Southern Trail 1371 Comment
  NY664636  Bromus tectorum A. A. Heller 1905-6-9 8012 Siskiyou Montague Comment
  HSC31068  Calamagrostis breweri Frederick W. Oettinger 1969-9-3 1613 Siskiyou Salmon Mountains, Shasta Ridge, N slope of English Peak 2073 Comment
  UC1265382  Calamagrostis canadensis F. W. Oettinger 1969-9-4 1634 Siskiyou Hancock Lake, E side Salmon Mountains 1935 Comment
  CAS-BOT-BC185270  Calamagrostis koelerioides G. L. Stebbins 1972-7-3 9008 Siskiyou South side of Red Butte, west of Cook and Green Pass. 1767 Comment
  HSC27333  Calamagrostis koelerioides J. P. Smith, J. O. Sawyer, M. O'Mera 1972-7-3 5711 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  JEPS116610  Calamagrostis koelerioides Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -027 Siskiyou The Eddys, west of Mt. Shasta. East side of Toad Lake headwaters of Middle Fork of upper Sacramento River. Mt. Eddy 2103 Comment
  UCD57258  Calamagrostis koelerioides A. A. Heller 1915-8-26 12243 Siskiyou north side of Mt. Eddy. Comment
  SEINET7584063 Image available Calliscirpus criniger John Thomas Howell 1937-7-24 13411 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1981 Comment
  HSC19314  Callitropsis nootkatensis J. O. Sawyer 1968-9-10 675 Siskiyou Near top of Preston Peak 1524 Comment
  CAS-BOT-BC85727  Calocedrus decurrens Doris K. Kildale 1929-8-24 9057 Siskiyou Rattlesnake Meadow, Preston Peak 1524 Comment
  HSC69737  Calocedrus decurrens Maralyn A. Renner 1980-6-26 1280 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  JEPS39851  Calocedrus decurrens W. L. Jepson 1914-8-14 Siskiyou Dunsmuir Comment
  CHSC118633  Calochortus coeruleus Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -020 Siskiyou Lower Parks Creek watershed, E Klamath Range, above Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539249m E, 4586866m N. 1478 Comment
  SEINET8201963  Calochortus elegans Unknown 1938-7-19 1748 Siskiyou 2.5 miles northeast of Dry Lake Lookout, summit of Siskiyou Mts. Comment
  SEINET12053890  Calochortus elegans var. nanus M. Ownbey, Brown, D. H. 1941-1 2429 Siskiyou near Gunsight Peak, mountains W of Yreka Comment
  JEPS93893  Calochortus macrocarpus Vernon H. Oswald and Lowell Ahart 1998-7-21 9321 Siskiyou Highway 97 at the 11.0 mile marker 1.2 mi w of A12 ne of Weed; Highway 97, 11.0 mile marker 1188 Comment
  HSC15365  Calochortus macrocarpus var. macrocarpus R. C. Wunner 1965-7-20 402 Siskiyou Lava Beds National Monument, Indian Wells near N prefab 1433 Comment
  CAS-BOT-BC493091  Calochortus nudus W. R. Dudley 1905-8-4 s.n. Siskiyou meadow foot of Mt. Eddy Comment
  UC9024  Caltha biflora Harley P. Chandler June, 1901 1571 Siskiyou Near Marble Mountain; North Coast Ranges. 1828 Comment
  CAS-BOT-BC181513  Caltha leptosepala Ira L. Wiggins 1950-5-28 12367 Siskiyou Small bog on side of ridge above Grouse Creek, ca. 1.5 mi. from Carmen Lake 1584 Comment
  HSC36895  Caltha leptosepala J. P. Smith 1974-5-26 7538 Siskiyou Chandler Glade on FS 47N03 1768 Comment
  HSC64343  Caltha leptosepala J. P. Smith, Steve Selva 1970-7-17 4456 Siskiyou Below Kangaroo Lake. 1890 Comment
  UC89038  Calycadenia truncata K. Brandegee 1887-7-1 Siskiyou Edgewood Comment
  UC1971673  Calycadenia truncata 1977-7-2 2010 Siskiyou Along Klamath River exit of I-5, 12 mi N of Yreka, rocky road cut W of road. 641 Comment
  UCD129886  Calycadenia truncata R. L. Carr 1974-9-12 2160 Siskiyou 0.4 mile east of Somesbar on Salmon River Road. 195 Comment
  POM210917  Calycadenia truncata subsp. scabrella L. C. Wheeler 1934-10-6 3310 Siskiyou Shasta Valley, 2 mi. SE of Yreka. 854 Comment
  CAS-BOT-BC272742  Calycadenia truncata subsp. truncata Carl B. Wolf 1927-8-26 1039 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  SD53343  Calyptridium umbellatum Darley F. Howe 1962-8-6 3410 Siskiyou Mt. Shasta 2440 Comment
  UC796486  Calyptridium umbellatum Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11761 Siskiyou French Creek Logging Road w of Callahan 1066 Comment
  UCD13284  Calystegia malacophylla K. F. Mawdsley 1996-7-10 18 c Siskiyou California, Siskiyou County. Trail from Castle Lake Trailhead to Little Castle Lake, T 39N R 4W, NW 1/4 of Section 19, Seven Lakes Basin 7.5 topo. Elevation 5800.. Comment
  UC141667  Calystegia malacophylla subsp. malacophylla H. E. Brown June 1-10 1897 397 Siskiyou near Sisson; near Sisson 1083 Comment
  CAS-BOT-BC160903  Camissonia tanacetifolia subsp. tanacetifolia Peter H. Raven 1962-5-30 17900 Siskiyou U. S. Highway 97, 14 miles south of Macdoel Comment
  SEINET3142708  Campanula prenanthoides G. D. Butler 1910-8-7 1815 Siskiyou Humbug Mountain 1219 Comment
  RSA100329  Campanula prenanthoides F. W. Peirson 1926-7-11 7023 Siskiyou About half way up the grade west of Etna or Etna Mills Comment
  SEINET10463159  Campanula prenanthoides Rose 1945-7-22 Rose 45153 Siskiyou Horse Creek and Klamath River. 503 Comment
  SEINET10840346  Campanula prenanthoides Alice Eastwood 1912-7-21 Eastwood 1275 Siskiyou Sisson Comment
  HSC44652  Campanula rotundifolia J. P. Smith, Steve Selva 1970-7-18 4494 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  SEINET10463468  Campanula scouleri John G. Lemmon Lemmon s.n. Siskiyou SISSON, NR. MT. SHASTA Comment
  SEINET10905938  Campanula scouleri Edward L. Greene 1876-8-22 Greene 1010 Siskiyou SCOTT MOUNTAIN 1829 Comment
  SFV1451  Cardamine D. Parker 1949-6-11 227 Siskiyou Blue Creek. Comment
  JEPS96809  Cardamine nuttallii var. covilleana Dean W. Taylor 1999-6-10 17252 Siskiyou Marble Mountains, Mill Creek, ca. 4 miles W from Mugginsville in Quartz Valley, northerly facing slopes near watershed divide with Kidder Creek Comment
  CAS-BOT-BC37849  Cardamine oligosperma Lewis S. Rose 1945-6-18 45109 Siskiyou Horse Creek and Klamath River. 502 Comment
  CAS-BOT-BC38067  Cardamine pachystigma W. R. Dudley 1893-6-20 s.n. Siskiyou Near Castle Lake, vicinity of Mount Shasta. Comment
  CAS-BOT-BC18390  Carex R. Tallent 1987-8-13 913 Siskiyou Klamath National Forest. Forest Road 29N11 at Little Jackson Creek. 1740 Comment
  JEPS126013  Carex ablata D. W. Taylor, G. Clifton 1996-7-27 15855 Siskiyou Shasta-Trinity National Forest; Cliff Lake, The Eddys, about 15 air miles SW of Weed. Comment
  CAS-BOT-BC19761  Carex abrupta John Thomas Howell 1939-8-5 15066 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  SEINET10585936  Carex abrupta David Castaner 1989-6-19 Castaner 10240 Siskiyou Along Hwy 3 Between Callahan and Gazelle along a rocky stream. Comment
  POM297993  Carex amplifolia A. A. Heller 1905-6-5 6325 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  RSA364723  Carex amplifolia L. C. Wheeler 1934-6-14 2711 Siskiyou Arrastre Creek off Hungry Creek. Siskiyou Mountains. 1280 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
  HSC26099  Carex athrostachya J. O. Sawyer 1969-7-9 1204 Siskiyou Near C.C.C. road, N of Sugar Creek 1433 Comment
  UC1573170  Carex athrostachya Dean Wm. Taylor with Glenn Clifton, R. Douglas Stone 1987-8-5 9240 Siskiyou Porcupine Lake Modoc Plateau, Porcupine Lake 1304 Comment
  HSC76845  Carex athrostachya L. P. Janeway 1982-8-2 104 Siskiyou 3 1/2 mi. along spur road into Coon Run 793 Comment
  JEPS63748  Carex bolanderi B. C. Goldsmith 1916-7-23 8 Siskiyou 6 mi from McCloud; McCloud River Comment
  CHSC40138  Carex brainerdii L. P. Janeway 1983-6-25 341 Siskiyou On rock bluff above Klamath R, e side, near Independence Cr Br. 274 Comment
  HSC77169  Carex brainerdii L. P. Janeway 1983-6-26 346 Siskiyou Along FS Rd. 18N33, 6 mi. from the Grayback Rd. 1250 Comment
  RSA233665  Carex breweri Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38982 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  HSC76384  Carex concinnoides L. P. Janeway 1982-6-22 21 Siskiyou 400 m NE of West Branch Guard Station near road to Indian Creek, 15 m below road, near creek 671 Comment
  SEINET8355497  Carex concinnoides Barbara Wilson 1994-5-27 6920 Siskiyou Rogue River NF: low on the New London, between the first and second acute corners, near the trailhead, between Rd 1050 and the creek. Comment
  HSC39845  Carex echinata subsp. echinata J. O. Sawyer 1969-7-25 1563 Siskiyou Above High Lake 2104 Comment
  HSC98401  Carex echinata subsp. echinata Jennifer Whipple 1977-8-6 2211 Siskiyou Mt. Eddy, SW of Dobkins Lake along drainage into the lake 2195 Comment
  HSC97426  Carex feta Gail Newton 1980-6-20 461 Siskiyou Near Bald Mtn. 1097 Comment
  HSC37425  Carex fissuricola J. O. Sawyer 1969-8-5 1751 Siskiyou W of Little Duck Lake 2073 Comment
  JEPS25580  Carex fracta Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7209 Siskiyou w slopes of broadening base of Mt. Shasta Mt. Shasta 1676 Comment
  JEPS125992  Carex geyeri D. W. Taylor 1996-6-18 15699 Siskiyou Shasta-Trinity National Forest; Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles S of Gazelle. Comment
  SEINET3901319  Carex globosa D. H. Norris 1972-6-11 22844 Siskiyou Along Duck Lakes trail near Parrott's Mill Road.; 0 1676 Comment
  UC833774  Carex halliana A. A. Heller 1922-7-15 13689 Siskiyou at Medicine Lake Medicine Lake 2133 Comment
  CHSC106461  Carex hassei Peter F. Zika 2009-6-18 24535 Siskiyou Klamath Range (KR). Near Pacific Crest Trail, Route 3, Scott Mountain Summit. 1640 Comment
  JEPS109693  Carex hassei Dean W. Taylor 2002-6-10 18126 Siskiyou Scott Mountain, bog between Grouse Creek and Little Carmen Creek 1188 Comment
  HSC76380  Carex hendersonii L. P. Janeway 1982-8-2 102 Siskiyou At headwaters of Coon Run, 3 mi. up FS 18N03 from S Fork Indian Creek and 300 m down spur road into Coon Run 823 Comment
  JEPS109847  Carex inops subsp. inops Dean W. Taylor 2004-7-20 19194 Siskiyou Mt. Shasta, slopes ca. 0.3 air mile E of Mud Creek dam. 1524 Comment
  RSA0089764  Carex inops subsp. inops Dean Wm. Taylor 2014-5-29 21481 Siskiyou Mt. Shasta; southeastern flank of the base of the mountain, Squaw Valley Creek watershed. 1664 Comment
  UC826340  Carex interior A. A. Heller 1920-7-6 13411 Siskiyou ne base of Mount Eddy, Metcalf's Ranch Mount Eddy; , Metcalf's Ranch 1158 Comment
  HSC39374  Carex jonesii J. O. Sawyer 1968-7-10 510 Siskiyou On Sugar Creek just above confluence with S Sugar Creek 1707 Comment
  JEPS100907  Carex jonesii Dean W. Taylor 1987-6-7 9025 Siskiyou Paynes Springs 2011 Comment
  CAS-BOT-BC35522  Carex jonesii J. W. Stacey 1939-7-7 13617 Siskiyou In the Wagon Camp Sedge Swamp 1737 Comment
  SEINET7563577 Image available Carex laeviculmis Ray Tallent 1987-8-12 899 Siskiyou Klamath National Forest, Long Gulch Lake. 1939 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
  SEINET7563561 Image available Carex laeviculmis Frederick W. Oettinger, R. F. Thorne 1969-8-4 1179 Siskiyou Just N of Tobacco Lake. High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1890 Comment
  CHSC40182  Carex lenticularis var. impressa L. P. Janeway 1982-8-13 123 Siskiyou Bench above and on ne side of Bear Cr near trail. 1615 Comment
  CAS-BOT-BC28431  Carex lenticularis var. lipocarpa John Thomas Howell 1937-7-23 13339 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  HSC76372  Carex lenticularis var. lipocarpa L. P. Janeway 1982-8-13 127 Siskiyou N side of Bear Lake 1814 Comment
  CAS-BOT-BC31435  Carex leporinella Louis C. Wheeler 1934-8-9 3087 Siskiyou Jaynes Canyon. 1981 Comment
  CHSC40171  Carex luzulina Lawrence Janeway 1982-7-2 34 Siskiyou At Poker Flat, at end of rd 18N33. Upper part of meadow. 1524 Comment
  SEINET7566357 Image available Carex luzulina Ray Tallent 1987-8-12 907 Siskiyou Klamath National Forest, Long Gulch Lake. 1939 Comment
  UC1265319  Carex luzulina var. ablata Frederick W. Oettinger 1969-8-22 1504 Siskiyou S side of Horses Hole Horse Range Lake (high lake basins in the vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  RSA577422  Carex mariposana L. C. Wheeler 1934-8-6 3049 Siskiyou Bear Ground Gulch off Jaynes Canyon. Siskiyou Mountains. 1677 Comment
  HSC29631  Carex mertensii Frederick W. Oettinger 1969-8-6 1233 Siskiyou Marble Mtn. Wilderness Area, NW of Pine Lake 1883 Comment
  CHSC115879  Carex multicaulis Peter F. Zika 2012-5-18 25888 Siskiyou Near Dunsmuir Avenue, S end of town of Dunsmuir, 3.6 air km SE of Mount Bradley, Klamath Range. 730 Comment
  HSC97434  Carex multicaulis Jennifer Whipple 1976-6-30 1184 Siskiyou S face of Mount Eddy draining into the N Fork of the Sacramento River 2378 Comment
  UC195518  Carex multicaulis Geo. D. Butler 1909-5-30 856 Siskiyou Humbug Mountain Comment
  UC833301  Carex multicaulis A. A. Heller 1922-7-3 13675 Siskiyou w Wagon creek; Mt. Eddy 2225 Comment
  HSC39866  Carex multicaulis J. O. Sawyer 1969-7-11 1308 Siskiyou Along S Sugar Creek below S Sugar Lake 2012 Comment
  SEINET10713499  Carex multicaulis A. Arthur Heller 1922-7-3 Heller 13675 Siskiyou Dry gravelly slope on Mt. Eddy south of Wagon creek in the Canadian zone. 2225 Comment
  SEINET10883334  Carex multicaulis David Castaner 1989-6-19 Castaner 10243 Siskiyou Trinity Creek campground. Along highway 3 by Trinity River. North Trinity Center. Comment
  HSC39380  Carex multicostata J. O. Sawyer 1969-7-18 1435 Siskiyou SW facing slope above Deacon Lee Trail 2195 Comment
  HSC101149  Carex nardina Dana York 2011-9-8 3087 Siskiyou Klamath National Forest, slopes of Kings Castle 2175 Comment
  POM248555  Carex nigricans W. Bridge Cooke 1938-7-21 11292 Siskiyou Heather meadow, Mt. Shasta. 2287 Comment
  CHSC96159  Carex pachystachya L. P. Janeway 2006-7-1 8717 Siskiyou Klamath Ranges. Salmon Mountains; just west of Carter Meadow, north side of South Fork Salmon River. Small open dry meadow along road with seepy ditch along upper road edge. 1579 Comment
  RSA577439  Carex pachystachya L. C. Wheeler 1935-7-26 3718 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  SEINET8410792  Carex pellita John Thomas Howell 1952-6-15 28359 Siskiyou 2 miles west of Montague Comment
  POM81967  Carex praegracilis Geo D. Butler 1910-4-19 1202 Siskiyou Near Yreka. Comment
  CAS-BOT-BC118772  Carex preslii John Thomas Howell 1937-7-25 13488 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC91376  Carex raynoldsii Jennifer Whipple 1978-10-6 2437 Siskiyou Dale Creek drainage on N face of Mt. Eddy. 2195 Comment
  HSC90843  Carex rostrata D. K. Imper 1987-7-22 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  HSC91195  Carex scabriuscula Jennifer Whipple 1977-7-20 1997 Siskiyou N slopes of Mount Eddy 2500 Comment
  HSC91263  Carex scopulorum Jennifer Whipple 1976-6-16 1013 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  UCD63042  Carex scopulorum var. bracteosa 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. The Fen Trail. Scott Mountains, Klamath National Forest. 1850 Comment
  CDA33142  Carex scopulorum var. bracteosa Gordon Leppig, Jennifer Kalt 1996-7-9 388 Siskiyou Northern California Peatlands; Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque west of Little Duck Lake. Comment
  HSC77255  Carex scopulorum var. bracteosa L. P. Janeway 1983-7-9 393 Siskiyou S side of Indian Creek at FS 17N32 crossing 1159 Comment
  CDA33144  Carex senta G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2636 Siskiyou Between highway and East Fork of Scott River, ca. 500 ft east of Highway 3 bridge, 2 miles east of Callahan. Comment
  UC834264  Carex specifica Louis C. Wheeler 1934-8-6 3049 Siskiyou Bear Ground Gulch off Jaynes Canyon Siskiyou Mountains 1676 Comment
  CHSC106463  Carex spectabilis Peter F. Zika 2009-8-16 24608 Siskiyou Cascade Range Highlands (CaRH). Near Road A10 (Everett Memorial Highway), Panther Meadows, S slope of Mt. Shasta, along creek. 2280 Comment
  CAS-BOT-BC117237  Carex spectabilis William Bridge Cooke 1939-7-26 13748 Siskiyou Small spring on W side of wide dray above Panther Creek Meadows. 2743 Comment
  RSA238926  Carex spectabilis Frederick W. Oettinger 1968-9-6 732 Siskiyou Trail southeast of Tom s Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  RSA105479  Carex stipata G. D. Barbe 1955-6-29 29 Siskiyou 1 mile east of Callahan 976 Comment
  SEINET7576412 Image available Carex straminiformis L. P. Janeway 2006-7-3 8776 Siskiyou Deadman Peak 7.5' quad. Klamath Ranges. Salmon Mountains, south side of upper Carter Meadows 0.5 km west of Carter Meadows Summit. 1798 Comment
  CAS-BOT-BC115836  Carex subfusca John Thomas Howell 1937-7-23 13338 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  SEINET10750082  Carex subfusca William B. Cooke 1941-9-10 Cooke 16309 Siskiyou In the vicinity of Horse Camp, Mt. Shasta. 2438 Comment
  CAS-BOT-BC115278  Carex utriculata John Thomas Howell 1939-8-9 15197 Siskiyou Sky High Valley, Marble Mts. Comment
  UC835109  Carex utriculata John Thomas Howell 1939-8-9 15197 Siskiyou Sky High Valley Marble Mts. 1828 Comment
  LA41290  Cassiope mertensiana John Thomas Howell; 1937-7-25 13443 Siskiyou Caribou Basin, Salmon-Trinity Alps 1981 Comment
  HSC59937  Cassiope mertensiana subsp. ciliolata D. L. Goforth 1979-7-19 246 Siskiyou Trinity Alps Wild Area, Caribou Lakes Basin, 0.3 mi. NW of upper lake 2134 Comment
  CAS-BOT-BC248989  Castilleja Arthur Menzies 1962-7-21 s.n. Siskiyou Mt. Eddy 2529 Comment
  HSC20505  Castilleja applegatei R. C. Wunner 1965-6-6 93 Siskiyou Lava Beds National Monument, .2 mi. on Rd. to Caldwell Ice Cave 1402 Comment
  CAS-BOT-BC241140  Castilleja applegatei subsp. pinetorum Clarence R. Quick 1958-6-17 58 -31 Siskiyou Near Black Bear Summit south of Sawyer's Bar on ridge road to Cecilville 1356 Comment
  JEPS6837  Castilleja applegatei subsp. pinetorum H. A. Thomas and J. H. Thomas 1954-7-21 4423 Siskiyou about 6 mi se Cecilville (w side of Rush Creek); Salmon-Trinity Mts. 1158 Comment
  RSA425928  Castilleja applegatei subsp. pinetorum M. B. Dunkle 1944-6-26 9046 Siskiyou Siskiyou National Forest. Coastal Northern California. Comment
  HSC19027  Castilleja arachnoidea J. O. Sawyer 1969-6-13 1091 Siskiyou Slope above Little Duck Lake 2134 Comment
  JEPS16360  Castilleja arachnoidea Peter H. Raven 1956-9-4 10392 Siskiyou just s Mount Eddy 2438 Comment
  JEPS76187  Castilleja arachnoidea T. I. Chuang with Fei-Mei Chuang 1977-7-22 7635 Siskiyou 0.75 mi from Deadfall Meadow to Deadfall Lake; Mt. Eddy 2042 Comment
  HSC82560  Castilleja lacera Thomas W. Nelson, Jane P. Nelson 1979-5-26 4719 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  CAS-BOT-BC253617  Castilleja miniata Doris K. Kildale 1928-7-2 5389 Siskiyou Salmon Summit via Horn Creek trail 1981 Comment
  HSC19170  Castilleja miniata J. O. Sawyer 1969-7-24 1506 Siskiyou SE facing slope W of Sugar Lake 1905 Comment
  RSA237565  Castilleja miniata Frederick W. Oettinger 1967-8-12 249 Siskiyou Between Tom Taylor Cabin meadows and the large meadow northwest of English Peak Lookout. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2104 Comment
  RSA504754  Castilleja miniata Leg A Meebold 1935-07 19774 Siskiyou Mt. Shasta (city). Comment
  CDA41233  Castilleja minor var. exilis J. G. Schieber 1978-7-2 Siskiyou U.S. Wildlife Preserve, Tule Lake. 0 Comment
  CAS-BOT-BC241051  Castilleja pilosa David D. Keck 1940-6-13 5171 Siskiyou 1 mi. S.W. of Grass Lake 1525 Comment
  CHSC1725  Castilleja pruinosa M. Yoder 1941-6-28 Siskiyou Castle Lake. 1981 Comment
  CHSC71329  Castilleja pruinosa Vernon H. Oswald; Lowell Ahart 1998-6-11 9189 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
  HSC76896  Castilleja pruinosa K. T. Stillman 1976-9-9 484 Siskiyou Marble Mountain Wilderness Area; jump off point, trail to Box Camp 1951 Comment
  SEINET14165199  Castilleja pruinosa G. D. Butler 1910-4-19 1148 Siskiyou Near Yreka. Comment
  JEPS84013  Castilleja schizotricha L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6344 Siskiyou ca 7 mi nne Seiad Valley (ca 0.5 mi se of Red Butte, sw of Cook and Green Pass, e of road) 1730 Comment
  JEPS97798  Castilleja tenuis J. Greenhouse with John Game, Mary Simpson 2000-7-15 5009 Siskiyou 4 mi NNW of Callahan (On N side of Tiger Creek Rd. 0.7 mi W of jct. with Sugar Cr. Rd); Klamath National Forest 1146 Comment
  CDA41391  Castilleja tenuis Vernon H. Oswald & Lowell Ahart 1998-6-11 9207 Siskiyou Dry Lake on the south side of Tennant Road, ca. 9 air miles east of Grass Lake, ca. 22 air miles northeast of Weed. Comment
  CAS-BOT-BC48656  Ceanothus cordulatus Alice Eastwood 1923-5-23 11904 Siskiyou Cantara Comment
  RSA399046  Ceanothus cuneatus Bonnie C. Templeton 1960-6-21 8534 Siskiyou Between California State line and the Agricultural Inspection Station Comment
  UC796506  Ceanothus cuneatus var. cuneatus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11811 Siskiyou At Mule Creek crossing of Scott Mt. Rd 1524 Comment
  CAS-BOT-BC63607  Ceanothus integerrimus Mrs. Pettibone 1894-8-8 s.n. Siskiyou Upper Soda Springs. Comment
  CAS-BOT-BC63650  Ceanothus integerrimus John Thomas Howell 1934-7-4 12393 Siskiyou SE. corner of Siskiyou Co. Comment
  CAS-BOT-BC53092  Ceanothus prostratus Nora Pettibone 1894-8-9 s.n. Siskiyou Upper Soda Springs Comment
  CAS-BOT-BC53096  Ceanothus prostratus Ira L. Wiggins 1950-5-28 12364 Siskiyou Margins of Carmen Lake, about 1.5 miles east of Scott Mountain Road 1737 Comment
  CAS-BOT-BC53100  Ceanothus prostratus Doris K. Kildale; J. W. Gillespie 1929-6-22 8037 Siskiyou Mt. Shasta - Black Butte Comment
  JEPS42258  Ceanothus prostratus Willis L. Jepson July 1894 14381 Siskiyou near Sisson (Upton); Upper Sacramento River Comment
  UC375365  Ceanothus prostratus Geo. D. Butler 1909-6-23 903 Siskiyou foothills of Goosenest Mountain Comment
  HSC4478  Ceanothus velutinus William J. Ferlatte 1967-7-25 718 Siskiyou Caribou Mtn., W slope 2439 Comment
  RSA238033  Ceanothus velutinus Frederick W. Oettinger 1968-8-10 469 Siskiyou East side of Hancock Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UCD112841  Ceanothus velutinus J. M. Tucker 1950-7-23 1938 Siskiyou Beside road to Panther Meadows, south slope of Mt. Shasta. 1524 Comment
  CDA20009  Centaurea jacea M. Bagley 2002-8-1 PDR P 087837 -A Siskiyou Northern California; Vicinity of Mt Shasta. 0 Comment
  HSC43134  Centaurea solstitialis Ken Stillman 1976-8-24 415 Siskiyou E and N slopes of Williams Point 366 Comment
  HSC67015  Centaurea solstitialis J. P. Smith, Steve Selva 1970-7-16 4403 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  UCR47629  Centaurea virgata var. squarrosa Don Pendleton 1986-6-26 s.n. Siskiyou Modoc Plateau 1293 Comment
  SEINET8582822  Centaurium exaltatum L. C. Wheeler 1935-7-3 3646 Siskiyou Shasta River, 2 miles NW of Montague. 762 Comment
  CHSC2343  Cephalanthera austiniae V. Holt 1935-6-29 Siskiyou Mt. Shasta City. 1097 Comment
  OBI68582  Cerastium dichotomum T. C. Fuller 1962-5-18 8745 Siskiyou Long Property, Little Shasta rd, 5 mi E of Montague Comment
  UCD98002  Cerastium dichotomum T. C. Fuller 1962-6-12 8969 Siskiyou B. M. Long prop., Little Shasta Road, 5 miles east of Montague. Comment
  CAS-BOT-BC388236  Cerastium glomeratum Wm. Bridge Cooke 1938-7-29 11412 Siskiyou Mount Shasta. Above Bear Springs Comment
  HSC4098  Cerastium glomeratum Geo. D. Butler 1909-4-14 636 Siskiyou Yreka Comment
  POM88245  Cercocarpus betuloides Geo. D. Butler 1908-7-4 286 Siskiyou Shasta River Comment
  CHSC36164  Cercocarpus ledifolius var. ledifolius K. Bridwell 1978-7-7 176 Siskiyou N slope of Sheep Mountain, ca. 10 mi e of Macdoel. 1615 Comment
  HSC63037  Cercocarpus montanus var. macrourus J. P. Smith 1973-5-5 6442 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  POM208295  Chaenactis carphoclinia L. C. Wheeler 1934-6-15 2715 Siskiyou Hungry Creek, Siskiyou Mts. 1280 Comment
  CAS-BOT-BC276784  Chaenactis douglasii var. douglasii Elmer I. Applegate 1935-6-6 9367 Siskiyou Crater of Caldwell Butte, Lava Beds National Monument Comment
  JEPS34206  Chaenactis douglasii var. douglasii W. L. Jepson Jul 17 1902-Jul 22 1902 2100 Siskiyou Devil's Backbone, w Siskiyou Devil's Backbone 1828 Comment
  CAS-BOT-BC276762  Chaenactis douglasii var. douglasii Elmer I. Applegate 1935-6-12 9532 Siskiyou Between Captain Jack's and Three Sisters, Lava Beds National Monument Comment
  CAS-BOT-BC106044  Chaenactis suffrutescens Louis C. Wheeler 1935-6-15 3586 Siskiyou Greenview, Scott Valley 883 Comment
  CAS-BOT-BC141579  Chamaebatiaria millefolium Elmer I. Applegate 1935-8-4 10025 Siskiyou Upper Ice Cave, Lava Beds National Monument Comment
  CHSC98916  Chamaebatiaria millefolium L. P. Janeway; B. Castro 2007-7-28 9130 Siskiyou Modoc Plateau. Upper part of Callahan Flow, along Road 44N53 0.6 km north of Cinder Butte. 1731 Comment
  RSA59508  Chamaebatiaria millefolium E. K. Balls 1950-5-16 14706 Siskiyou Caldwell Caves, Lava Beds National Monument. 1524 Comment
  HSC69735  Chamaecyparis lawsoniana Maralyn A. Renner 1980-6-26 1282 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  SEINET3863160 Image available Chamaecyparis lawsoniana Dan Youngberg 1964-7-19 76 Siskiyou Growing along West Branch of Indian Creek. S23, R6E, T18N, Humbolt Meridian.; 0 671 Comment
  JEPS9107  Chamaesaracha nana W. L. Jepson 1940-7-1 20087 Siskiyou 6 mi e McCloud (Fowlers Camp); McCloud River 975 Comment
  SEINET10546749  Chamaesaracha nana Mary Merello 1993-6-25 Merello 719 Siskiyou Shasta National Forest. At end of Forest Service Road 39N 28, road to Lower Falls and Fowlers Campground. Open conifer woodlands. Disturbed. Along McCloud River. 970 Comment
  CDA35239  Chamaesyce glyptosperma D. H. Shaw Jul 1977 Siskiyou Near Dorris. 0 Comment
  HSC68061  Chamaesyce serpyllifolia J. P. Smith, Steve Selva 1970-7-17 4420 Siskiyou Along Klamath River. Comment
  CAS-BOT-BC160569  Chamerion angustifolium Gilbert Muth 1965-8-12 s.n. Siskiyou 2/3 up meadow on back of Blk. Mt. 2133 Comment
  UCD103638  Chamerion angustifolium Steve. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta-Trinity National Forest, S of Mt. Shasta. 1767 Comment
  CAS-BOT-BC68202  Cheilanthes gracillima John Thomas Howell 1939-8-6 15100 Siskiyou Marble Mts. - Elk Mt. Comment
  CAS-BOT-BC68206  Cheilanthes gracillima Mrs. H. C. Cantelow 1936-5-20 1379 Siskiyou Summit of Salmon Mt. 1818 Comment
  CAS-BOT-BC68241  Cheilanthes gracillima G. J. Muth 1969-8-6 1193 Siskiyou Boulder Peak 2529 Comment
  JEPS75210  Chenopodium botrys W. B. and V. G. Cooke 1975-9-3 50487 Siskiyou Ash Creek Area Mt. Shasta (at Military Pass Rd.) Comment
  UC922550  Chenopodium botrys Annie M. Alexander and Louise Kellogg 1948-9-15 5621 Siskiyou Canyon Creek Siskiyou Mountains (branch of Scott River) 762 Comment
  CDA3019  Chenopodium chenopodioides R. Pederson, G. Pederson 1979-8-15 Siskiyou Lower Klamath National Wildlife Refuge. Comment
  UC851054  Chenopodium pumilio L. E. Smith 1913-7-12 467 Siskiyou Igerna Comment
  CAS-BOT-BC451442  Chimaphila menziesii J. H. Thomas 1954-5-14 4174 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles SE of Cecilville 1219 Comment
  CAS-BOT-BC452286  Chimaphila umbellata H. A. Thomas; J. H. Thomas 1954-7-21 4389 C Siskiyou Salmon-Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek 1036 Comment
  HSC73224  Chimaphila umbellata Gail Newton 1980-6-20 519 Siskiyou Near Bald Mtn. 1326 Comment
  UC876107  Chimaphila umbellata John Thomas Howell 1937-7-26 13559 Siskiyou Caribou Gulch Comment
  CAS-BOT-BC452260  Chimaphila umbellata Gilbert Muth 1965-8-10 s.n. Siskiyou Marble Valley and along upper trails Comment
  SD73153  Chimaphila umbellata Darley F. Howe 1969-8-30 Siskiyou North Fork of Salmon River, Blake's Creek, about 20 miles southwest of Aetna 1829 Comment
  CDA3725  Chorispora tenella T. C. Fuller 1962-5-18 8748 Siskiyou Epperson property, 3.5 miles northwest of Gazelle. 0 Comment
  CAS-BOT-BC30101  Chrysolepis L. B. Kildale 1930-6-1 9823 Siskiyou Etna Mills Comment
  RSA187519  Chrysolepis chrysophylla H. A. Thomas, J. H. Thomas 1954-7-23 4471 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. Vicinity of Blind Horse Creek. 915 Comment
  SBBG113470  Chrysolepis chrysophylla D. Wilken with E. Painter 2000-8-10 15853 Siskiyou just S of Del Norte and Josephine (OR) county lines, NNE of Little Grayback, near head of Indian Crk, O'Brien-Happy Camp Rd 1500 Comment
  UC705917  Chrysolepis chrysophylla Marion Ownbey, Fred G. Meyer 1940-7-7 2213 Siskiyou Cayenne Ridge; Marble Mountain Comment
  CHSC617  Chrysolepis sempervirens V. Holt 1939-7-1 Siskiyou Mt. Shasta City. 1097 Comment
  UC455273  Chrysolepis sempervirens I. J. Condit 1909-8-23 Siskiyou near Sisson (Castle Lake); Castle Lake 2133 Comment
  UC5441  Chrysolepis sempervirens Milo S. Baker 1893-8-8 Siskiyou Medicine Lake 1981 Comment
  POM57971  Chrysothamnus nauseosus subsp. albicaulis E. B. Copeland 1903-10-10 3785 Siskiyou Mt. Eddy 2226 Comment
  OBI49190  Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose 1941-8-28 41427 Siskiyou Dorris 1292 Comment
  HSC68242  Cichorium intybus J. P. Smith, Steve Selva 1970-7-17 4425 Siskiyou Along Klamath River. Comment
  CAS-BOT-BC285343  Cirsium andersonii Alice Eastwood 1912-7-23 1354 Siskiyou Cantara 834 Comment
  CHSC35684  Cirsium andersonii Thomas Nelson; Jane Nelson, J. P. Smith 1978-7-24 4545 Siskiyou Along State Route 3 just north of Scott Mountain Summit. 1584 Comment
  CAS-BOT-BC105781  Cirsium ciliolatum T. C. Fuller; D. M. Shaw 1977-8-30 20220 Siskiyou South side of Willow Creek road, west slope of Willow Creek Mtn., 21 km. northeast of Montague 1370 Comment
  CDA1135  Cirsium ciliolatum G. D. Barbe, Don Shaw 1982-7-14 3890 -C Siskiyou Willow Creek; Bryant Rd. at York Rd., 3.5 mi east of Willow Creek School. Comment
  CDA1136  Cirsium ciliolatum T. C. Fuller, Don Shaw 1978-7-5 20246 -A Siskiyou Northwestern; Klamath Ranges region; North side of York Road, 0.3 km east of Bryant-Willow Creek Road, 15 km north of Montague; T46N R5W, sec. 20 0 Comment
  CDA1179  Cirsium cymosum B. Villegas 1999-6-8 s.n. Siskiyou Near Weed; Shasta Valley; Slough Rd about 2 miles south of Louie Rd. 0 Comment
  CAS-BOT-BC279893  Cirsium douglasii var. breweri Alice Eastwood 1917-9-2 6667 Siskiyou Shasta Springs Comment
  JEPS59122  Cirsium douglasii var. breweri Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Region of the Upper Sacramento, Sissons Comment
  UCD130621  Cirsium inamoenum var. inamoenum T. C. Fuller 1979-10-3 20271 Siskiyou both sides of Goosenest Road, 14 km northeast of Tennant. Comment
  UC1211911  Cirsium occidentale var. candidissimum Roy L. Taylor 1960-6-12 4443 Siskiyou n of Yreka (1 mi w of jtn. of Hwy. 96 and Hwy 99, above Kalmath River); Klamath River Comment
  CAS-BOT-BC286465  Cirsium scariosum Alice Eastwood; John Thomas Howell 1936-6-13 2759 Siskiyou 5 miles n. of Gazelle Comment
  HSC75625  Cirsium scariosum J. O. Sawyer, R. J. Cole 1980-7-23 3907 Siskiyou S of Tennant 1524 Comment
  CAS-BOT-BC228984  Cistanthe umbellata Alice Eastwood 1912-8-30 2016 Siskiyou Mount Eddy Comment
  CAS-BOT-BC228962  Cistanthe umbellata Elmer I. Applegate 1923-8-13 3860 Siskiyou Top of Redshale Mountain, east of Medicine Lake 2438 Comment
  HSC27687  Clarkia concinna subsp. concinna Carl W. Mize 1972-6-8 42 Siskiyou Along main trail 335 Comment
  CAS-BOT-BC163456  Clarkia purpurea subsp. quadrivulnera W. B. Cooke; V. G. Cooke 1972-6-30 45411 Siskiyou Military Pass Road above Andesite Crossing, Mt. Shasta Comment
  JEPS69756  Clarkia purpurea subsp. quadrivulnera W. B. and V. G. Cooke 1972-6-30 45411 Siskiyou above Andesite crossing (Military Pass Road); Mt. Shasta Comment
  UC1034589  Clarkia purpurea subsp. quadrivulnera Douglas Barbe 1955-7-1 73 Siskiyou 1.3 mi e Etna (s of the Westside Rd. to Callahan); Klamath Mountains 853 Comment
  POM164049  Claytonia parviflora Geo. D. Butler 1909-4-16 675 Siskiyou [Unspecified] Comment
  CAS-BOT-BC439811  Claytonia perfoliata Elmer I. Applegate 1935-6-7 9390 Siskiyou Old Sheepherders' road, Lava Beds National Monument Comment
  CDA23962  Claytonia rubra subsp. depressa Vernon H. Oswald & Lowell Ahart 1998-6-11 9219 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Road and Highway 97, ca. 5 miles north of Macdoel. Comment
  CDA23964  Claytonia rubra subsp. depressa G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2603 Siskiyou 3 km east of Forest Mountain summit, Highway 3, southwest of Yreka. Comment
  CAS-BOT-BC443827  Claytonia rubra subsp. rubra Geo. D. Butler 1910-5-5 1289 Siskiyou Humbug Mountain 1219 Comment
  HSC17713  Claytonia rubra subsp. rubra R. C. Wunner 1965-6-6 138 Siskiyou Lava Beds National Monument, near top of Caldwell Butte on the NE side Comment
  HSC22228  Claytonia rubra subsp. rubra J. O. Sawyer 1969-7-1 994 Siskiyou Above Paynes Lake Creek 1951 Comment
  HSC4462  Claytonia sibirica William J. Ferlatte 1966-6-22 109 Siskiyou Josephine Lake Basin 1677 Comment
  RSA60492  Claytonia sibirica John H. Thomas 1949-6-16 943 Siskiyou 1/4 mi north of Beaver Creek Public Camp, along Beaver Creek; 5 mi north of junction of Beaver Creek and Klamath River; Klamath National Forest. Comment
  UCR66723  Claytonia sibirica Donald Myrick 1968-6-26 2026 Siskiyou Upper waters of Coffee Creek, Trinity Alps 1463 Comment
  RSA238293  Claytonia sibirica Frederick W. Oettinger 1967-7-26 185 Siskiyou Stream bank just below Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  RSA96932  Clematis ligusticifolia Percy C. Everett, E. K. Balls 1954-10-12 20272 Siskiyou N of Walker along Beaver Creek, 3.8 miles S from Beaver Creek Forest Service camp Comment
  SEINET6907101  Clematis ligusticifolia M. K. Solecki, J. B. Taft 1986-9-9 2144 Siskiyou Bank of Scotty River near Indian Scotty campground; elevation 2,200 feet. 670 Comment
  HSC30589  Clintonia uniflora Frederick W. Oettinger 1968-8-23 619 Siskiyou Marble Mtn. Wilderness Area, W of Upper English Lake 1768 Comment
  UC1409327  Clintonia uniflora Frederick W. Oettinger 1969-8-7 1277 Siskiyou se end of English Lake, in the vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area English Lake; Salmon Mountains, Marble Mountain Wilderness Area, English L 1767 Comment
  UC375201  Clintonia uniflora Geo. D. Butler 1908-8-4 98 Siskiyou near Cold Spring (Wooley Creek); Wooley Creek Comment
  CAS-BOT-BC500958  Clintonia uniflora Mabel E. Stonehouse 1916-6-17 s.n. Siskiyou Hilt Comment
  CAS-BOT-BC500965  Clintonia uniflora Edward Lee 1934-8-13 1084 Siskiyou Watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1463 Comment
  CAS-BOT-BC238060  Collinsia Alice Eastwood 1921-7-28 10878 Siskiyou Medicine Lake Comment
  JEPS23806  Collinsia linearis Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7315 Siskiyou jeep rd between Poker Flat and Twin Valley between Poker Flat and Twin Valley, (ridge top marking Del Norte-Siskiyou County line); Siskiyou Mtns 1664 Comment
  UC672466  Collinsia rattanii H. L. Mason 1929-5-18 5328 Siskiyou land s of Weed (hills along Shasta Creek Canyon); Shasta Creek Canyon Comment
  SEINET13406273  Collinsia rattanii G. D. Butler 1910-5-1 1262 Siskiyou Humbug Mountain. 1219 Comment
  CHSC1739  Collinsia torreyi M. Yoder 1941-7-6 Siskiyou Castle Lake. 1981 Comment
  HSC44931  Collomia grandiflora J. O. Sawyer 1978-6-19 3252 Siskiyou Marble Mtn. Wilderness Area, trail between Timothy Gulch and Harry Hall Gulch 1433 Comment
  RSA12614  Collomia grandiflora C. B. Wolf 1934-7-5 5971 Siskiyou 6-6/10 mi. from Dry Lake Lookout on rd. to Oak Knoll R. S. on Klamath River 1524 Comment
  UC164148  Collomia grandiflora Geo. D. Butler 1908-7-2 440 Siskiyou along creek near Yreka Comment
  CAS-BOT-BC229524  Collomia larsenii Dean Wm. Taylor 1987-6-26 9070 Siskiyou Little Mount Hoffman, 2 miles W from Medicine Lake 2209 Comment
  UC1540190  Collomia tinctoria Dean W. Taylor 1987-6-26 9073 Siskiyou 2 mi se Medecine Lake; Paynes Springs 1996 Comment
  JEPS46198  Collomia tracyi Duncan Dunning 1923-6-12 Siskiyou Sawyers Bar Comment
  RSA0124650  Collomia tracyi D. H. Wilken, E. Painter 1976-7-17 12710 Siskiyou Along road between Cicilville & Callahan, near confluence of Sixmile Creek & Salmon River. 1280 Comment
  CDA26905  Colutea arborescens F. D. Horn 1980-8-22 Siskiyou Off freeway, I-5, Dunsmuir. 0 Comment
  UC618655  Conyza canadensis unknown 1938-7-29 11383 Siskiyou Howard Mount Shasta, Howard 1219 Comment
  CDA21755  Conyza canadensis T. C. Fuller 1962-8-3 9499 Siskiyou Siskiyou Mountains; 200 yards up Raggedass Gulch, east of Beaver Creek, 5 miles north of Klamath River. 0 Comment
  HSC19039  Corallorhiza maculata J. O. Sawyer 1969-6-11 812 Siskiyou Next to C.C.C. road near the N fork of Horse Range Creek. 1326 Comment
  HSC45041  Corallorhiza maculata J. O. Sawyer, E. Cope 1977-6-19 2942 Siskiyou Clear Creek Trail between West Fork and Preston Creek 854 Comment
  HSC46112  Corallorhiza maculata J. P. Smith, Steve Selva 1970-6-16 3989 Siskiyou 6 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1280 Comment
  HSC46114  Corallorhiza maculata J. P. Smith, Steve Selva 1970-6-16 3991 Siskiyou 6 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1280 Comment
  UC1483517  Corallorhiza maculata John Palmer 1980-8-12 741 Siskiyou road from Beaver Creek Rd to Bearground Spring; Klamath National Forest, Condry Mtn. Quad. 1341 Comment
  RSA381993  Corallorhiza maculata M. B. Dunkle 1944-8-25 9171 Siskiyou Siskiyou National Forest, Hungry Creek Comment
  RSA758224  Corallorhiza maculata Robert F. Thorne 1969-8-2 63322 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  HSC491  Corallorhiza striata William J. Ferlatte 1967-6-29 580 Siskiyou Big Flat, near public camp 1524 Comment
  HSC101188  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson, Richard E. Brainerd 2010-8-9 16282 Siskiyou Shasta-Trinity National Forest; road A10 between town of Mount Shasta and Panther Meadow, on the mountain. 1345 Comment
  RSA264956  Cordylanthus tenuis subsp. viscidus Gilbert Muth 1975-7-31 6181 Siskiyou Near Joe Creek. Near Seiad Valley. 1317 Comment
  JEPS3576  Cordylanthus tenuis subsp. viscidus Herbert L. Mason 1950-7-16 14064 Siskiyou 5 mi s of summit of road from Happy Camp CA to Waldo, OR Comment
  JEPS7008  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-12 4790 Siskiyou 5.1 mi below (and se of) summit of road between Takilma, Ore. and Happy Camp, CA (drainage of West Branch of Indian Creek); Siskiyou Mountains, Klamath National Forest 914 Comment
  CAS-BOT-BC212280  Cornus glabrata C. Hart Merriam 1907-9-27 s.n. Siskiyou Klamath Hot Springs Comment
  UC165289  Cornus nuttallii Geo. D. Butler 1910-4-22 1246 Siskiyou Kidder Creek Comment
  CAS-BOT-BC210396  Cornus sericea Doris K. Kildale 1928-8-18 6455 Siskiyou Head of North Fork of Salmon River at Finley's Upper Camp Comment
  CAS-BOT-BC210403  Cornus sericea Alice Eastwood 1923-5-11 11843 Siskiyou Shasta Springs Comment
  HSC65408  Cornus sericea subsp. sericea Rich White 1978-7-18 259 Siskiyou Near stream outlet of Raspberry Lake. 1555 Comment
  JEPS50142  Cornus sericea subsp. sericea Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou region of Upper Sacramento, Sisson region Comment
  UC637142  Cornus sericea subsp. sericea Edward Lee 1934-8-13 1072 Siskiyou Happy Camp to Waldo (Oregon) rd. Klamath Nat'l Forest (watershed of W. Branch Indian Creek); , W. Branch Indian Creek 1371 Comment
  CDA4038  Coronilla varia G. D. Barbe, T. C. Fuller 1972-6-13 943 Siskiyou Siskiyou Avenue exit from I-5 north of Dunsmuir; driveway to Dunsmuir Elementary School. 0 Comment
  CAS-BOT-BC180197  Corylus cornuta subsp. californica George B. Grant 1902-9-15 s.n. Siskiyou Shasta Springs 762 Comment
  HSC101717  Crataegus gaylussacia J. P. Smith, J. O. Sawyer 2011-6-25 13271 Siskiyou Along Sugar Creek Rd., 1.8 mi. E of Hwy. 3. 968 Comment
  POM208197  Crataegus suksdorfii Louis C. Wheeler 1934-6-27 2804 Siskiyou Siskiyou Mountains : Cottonwood Creek. 884 Comment
  CHSC3228  Crataegus suksdorfii Virginia Hagaman 1966-5-14 182 Siskiyou 2 miles west of bridge before reaching old Oregon State road. Comment
  CAS-BOT-BC376448  Crepis bakeri subsp. bakeri Geo. D. Butler 1910-5-10 1328 Siskiyou Goosenest foothills 1524 Comment
  JEPS125929  Crepis monticola D. W. Taylor 1996-6-28 15756 Siskiyou Antelope Mountain, ca 8 air miles S of Yreka Comment
  CDA4449  Crepis occidentalis T. C. Fuller 1958-6-19 1892 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  UC922491  Crepis occidentalis Annie M. Alexander and Louise Kellogg 1949-7-22 5850 Siskiyou Paradise Lake Marble Mountains 2072 Comment
  UC581287  Crepis occidentalis subsp. pumila G. L. Stebbins Jr. and E. B. Babcock 1936-6-11 1939 Siskiyou old river terrace about 8 mi s Yreka 1180 Comment
  CAS-BOT-BC290842  Crepis occidentalis subsp. pumila Geo. D. Butler 1910-5-19 1365 Siskiyou Yreka Comment
  JEPS74514  Crepis pleurocarpa W. J. Ferlatte 1966-8-4 300 Siskiyou Yellow Rose Mine Trinity Alps 1981 Comment
  SEINET7838867 Image available Crepis pleurocarpa G. D. Butler 1910-7-12 1758 Siskiyou Dry ridge, Shackleford Creek 1372 Comment
  CHSC71280  Crocidium multicaule Vernon H. Oswald; Lowell Ahart 1998-6-11 9215 Siskiyou Butte Valley National Grassland near the juction of Meiss Lake-Sams Neck Rd. and Hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  POM31899  Crocidium multicaule Geo. D. Butler 1910-3-11 1122 Siskiyou Yreka Hills. Comment
  POM356384  Crocidium multicaule L. C. Wheeler 1935-5-5 3463 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  HSC67966  Croton setiger J. P. Smith, J. O. Sawyer 1971-9-18 4808 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  CHSC63600  Cryptantha ambigua Vernon H. Oswald; Lowell Ahart 1994-8-10 6455 Siskiyou Pilgrim Creek Rd. (FS 13) just E of Mud Creek, 2.7 mi N of Hwy. 89, ca. 4.5 mi (air) NE of McCloud. 1097 Comment
  CHSC86661  Cryptantha intermedia Jenny Marr 1993-7-1 44 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CHSC75685  Cryptantha torreyana Vernon H. Oswald; Lowell Ahart 1999-7-5 9796 Siskiyou Gazelle-Callahan Hwy. 9.0 mi west of Gazelle. 914 Comment
  JEPS89017  Cryptantha torreyana Geo. D. Butler 733 Siskiyou near Yreka Comment
  CHSC99987  Cryptogramma acrostichoides L. P. Janeway 2008-7-26 9508 Siskiyou Klamath Ranges. Between Castle Crags, Trinity Mountains, and The Eddys; about 200 m west-southeast of Heart Lake and about 0.8 km south of Castle Lake. 1901 Comment
  UC922418  Cryptogramma cascadensis Annie M. Alexander and Louise Kellogg 1949-7-22 5835 Siskiyou trail to Kings Castle Paradise Lake; Marble Mts 1920 Comment
  RSA17602  Cupressus bakeri C. B. Wolf 1934-7-8 6166 Siskiyou 1 mile NE of Timbered Butte, Modoc Lava beds on Old Stage Road from Dana Little Hot Springs Valley Comment
  SEINET10834035  Cupressus bakeri John Thomas Howell 1934-7-4 Howell 12386 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley. Comment
  JEPS85596  Cuscuta howelliana W. Robert Powell 1989-7-19 3533 Siskiyou 16 air mi n Fall River Mills (and 6 air mi w of Day, Modoc County, 1.2 mi e of Springs Creek Rd); Timbered Crater 7.5' Quad. 1097 Comment
  SEINET13943861 Image available Cymopterus terebinthinus W. B. C. 1941-1 16208 Siskiyou In the Lava Park above Hotlum Station, N side of Mt. Shasta, alt. 5000 Comment
  SDSU2276  Cymopterus terebinthinus var. californicus D. F. Howe 1964-8-4 3934 Siskiyou Probably Modoc National Forest, 9 miles from entrance to Lava Bed National Monument. 2042 Comment
Read comments
Oct 12 2011
  RSA29836  Cynoglossum occidentale L. C. Wheeler 1934-6-7 2649 Siskiyou Siskiyou Mountains: Hungry Creek Lookout. 1502 Comment
  CDA5635  Cynoglossum officinale Wm. Nichols 1959-5-1 2310 Siskiyou McCloud. 0 Comment
  CHSC96784  Cynoglossum officinale T. C. Fuller 1968-8-1 17453 Siskiyou In fencerow and adj. pasture, w. side of rd. to McCloud Reservoir, 0.3 mi. s. of McCloud, Siskiyou Co. Comment
  HSC103019  Cynosurus echinatus J. P. Smith 2014-6-6 13876 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  UC837442  Cyperus acuminatus Louis C. Wheeler 1934-10-11 3317 Siskiyou Oak Knoll Ranger Station Siskiyou Mts., Klamath R., Oak Knoll Ranger Station 670 Comment
  CAS-BOT-BC133738  Cypripedium californicum A. A. Heller 1919-6-29 13282 Siskiyou Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC70707  Cystopteris fragilis John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-20 53553 Siskiyou East Fork Scott River 2 miles east of Callahan on road to Gazelle 1005 Comment
  CAS-BOT-BC70710  Cystopteris fragilis Gilbert Muth 1966-8-3 162 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  HSC19005  Cystopteris fragilis J. O. Sawyer 1969-7-1 975 Siskiyou SE slope above Paynes Lake Creek 1921 Comment
  JEPS82418  Dactylis glomerata Gilbert Muth 1966-8-1 489 Siskiyou Marble Mt. Wilderness Area Marble Valley; , Marble Valley horse pasture 1792 Comment
  HSC34136  Danthonia californica J. O. Sawyer 1969-8-5 1780 Siskiyou W of Little Duck Lake 2073 Comment
  RSA238378  Danthonia californica var. americana Frederick W. Oettinger 1969-8-14 1372 Siskiyou English Lake Campsite. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UC165451  Danthonia californica var. americana Geo. D. Butler 1910-7-8 1660 Siskiyou Shackleford Creek 1219 Comment
  UCD60971  Danthonia californica var. americana S. S. Tillett 1956-7-11 683 Siskiyou Siskiyou-Trinity County line: Ca. 8 mi. SE of Calahan. 1615 Comment
  HSC69057  Danthonia intermedia subsp. intermedia Maralyn A. Renner 1980-8-6 2318 Siskiyou Cracker Meadow 1555 Comment
  UC1094389  Darlingtonia californica Rimo C. Bacigalupi with S. Galen Smith 1957-6-26 5956 Siskiyou small, sloping bog at w margin Gumboot Lake (ca 6 mi due s of Mt. Eddy); head of the South Fork of the Sacramento River 1859 Comment
  UC857781  Darlingtonia californica A. A. Heller 1915-7-15 12090 Siskiyou Mt. Eddy 1828 Comment
  HSC64831  Darmera peltata J. P. Smith 1973-5-5 6387 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  UC455366  Darmera peltata I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  RSA240079  Darmera peltata Frederick W. Oettinger 1969-8-29 1561 Siskiyou Main N Fork Trail betw 4th and 5th river crossing. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. Comment
  CAS-BOT-BC141838  Dasiphora fruticosa Alice Eastwood 1912-8-30 2025 Siskiyou Summit, Mount Eddy Comment
  HSC76671  Dasiphora fruticosa K. T. Stillman 1976-7-22 285 Siskiyou Marble Mtn. Wilderness Area Comment
  POM71157  Datura stramonium Geo. D. Butler 1910-7-1 1620 Siskiyou Yreka. Comment
  JEPS55088  Delphinium andersonii Geo. D. Butler 1909-7-22 901 Siskiyou Goosenest Mountain Comment
  CAS-BOT-BC8969  Delphinium depauperatum Lincoln Constance; Reed Clark Rollins 1942-5-14 2926 Siskiyou Road to Walker Post Office, 4 miles west of Yreka, Klamath-Siskiyou Region 1219 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
  POM149888  Delphinium nudicaule Geo. D. Butler 1910-5-7 1299 Siskiyou In thickets, dry hills near Yreka. Comment
  HSC64661  Delphinium nuttallianum J. O. Sawyer 1977-7-6 3027 Siskiyou South of Little Duck Lake 2134 Comment
  RSA187489  Delphinium nuttallianum H. A. Thomas, John H. Thomas 1954-7-25 s.n. Siskiyou Salmon Trinity Mts, Vicinity of Rush Lake and Rush Creek Meadow, 9 miles E of Cecilville. 1829 Comment
  SBBG2168  Delphinium nuttallianum H. and M. Dearing 1938-6-29 2190 Siskiyou Wagon Camp, Mt Shasta 1828 Comment
  CAS-BOT-BC116170  Delphinium nuttallianum K. T. Stillman 1976-6-25 57 Siskiyou Scott Bar, Marble Mountain Wilderness Area. Comment
  RSA238282  Delphinium nuttallianum Frederick W. Oettinger 1969-7-18 1054 a Siskiyou SW of upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  JEPS116611  Deschampsia cespitosa Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -023 Siskiyou The Eddys, west of Mt. Shasta. West side of Toad Lake headwaters of Middle Fork of upper Sacramento River. South China Mountain 2118 Comment
  POM211252  Deschampsia cespitosa subsp. cespitosa L. C. Wheeler 1934-8-14 3128 Siskiyou North side White Mountain; Siskiyou Mountains. Mt. Diablo Mer. 1767 Comment
  RSA239127  Deschampsia cespitosa subsp. cespitosa Frederick W. Oettinger 1969-8-11 1491 Siskiyou [meadow] near Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  CAS-BOT-BC192460  Deschampsia cespitosa subsp. cespitosa Saxton; Canfield 1922-8-3 80 Siskiyou Klamath National Forest. Thompson Creek Comment
  SEINET10835347  Deschampsia cespitosa subsp. cespitosa Lawrence P. Janeway 1983-1 Janeway 545 Siskiyou Preston Peak Quad (15') T18N R6E S20 SW1/4. Siskiyou Mountains: at Poker Flat, a meadow in a fir forest. In upper portion of the meadow; wet. 1524 Comment
  CAS-BOT-BC201947  Deschampsia elongata Louis C. Wheeler 1934-6-3 2629 Siskiyou Cherry Flat, Klamath River, Siskiyou Mts. 518 Comment
  HSC60818  Deschampsia elongata Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  RSA238390  Deschampsia elongata Frederick W. Oettinger 1969-8-29 1579 Siskiyou Margin of Katherine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UCD63529  Deschampsia elongata Rimo Bacigalupi; Mr. and Mrs. Van Deventer of Fort Dick 1959-7-10 7298 Siskiyou Twin Valley, Siskiyou Mts., just east of Del Norte County line, about 4 miles NNE of Preston Peak; watershed of Indian Creek. 1493 Comment
  SEINET10524243  Deschampsia elongata Lawrence P. Janeway 1983-1 Janeway 627 Siskiyou Preston Peak Quad (15') T18N R6E S20 SW1/4. Siskiyou Mountains: at Poker Flat, a meadow in a fir forest. Dryish, vegetated, northwest edge of the meadow, on the upper side of the road. 1524 Comment
  HSC77112  Descurainia incisa subsp. incisa K. T. Stillman 1976-7-30 341 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  JEPS1798  Dianthus deltoides subsp. deltoides Duncan Dunning 1921-7-16 Siskiyou se Toad Mountain (Toad Lake, nw of Hambone, southeastern Siskiyou County); se of Toad Mountain Comment
  JEPS84039  Dicentra formosa L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6303 Siskiyou from Takilma to Happy Camp (Indian Creek Road, just s of state line) Comment
  UCSB26447  Dicentra formosa Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  CAS-BOT-BC402549  Dicentra pauciflora Philip A. Munz 1952-7-2 17914 Siskiyou Rd. to Baldy Mt., ca. 6 air-line miles w. of Happy Camp, Siskiyou Mts. 1554 Comment
  RSA297049  Dicentra pauciflora John F. Emmel 1974-7-19 517 Siskiyou Wet meadow 0.2 air mile west of Lily Pad Lake, Siskiyou Mountains. 1753 Comment
  CDA39452  Dichelostemma multiflorum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2779 Siskiyou Yreka. West of Motel 6, south of town, north of Greenhorn Creek Road. Comment
  SEINET4899747  Dichelostemma pulchellum Jack Seely 1991-5-30 s.n. Siskiyou Klamath National Forest; West Branch Comment
  CAS-BOT-BC290998  Dieteria canescens var. shastensis Louis C. Wheeler 1934-8-24 3218 Siskiyou Klamath National Forest. Trapper Creek 1859 Comment
  CHSC102559  Dieteria canescens var. shastensis L. P. Janeway 2009-8-4 9894 Siskiyou High Cascade Range. Flat open area along Military Pass Road (A43N19) 3.4 km east of Military Pass, 6.4 air km northwest of Ash Creek Butte. 1804 Comment
  JEPS24630  Dieteria canescens var. shastensis Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6786 Siskiyou 2.3 mi above town of Mt. Shasta (Sisson) (along Everett Memorial Highway, at sw base of mt.); Mt. Shasta 1219 Comment
  UC29894  Dieteria canescens var. shastensis W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Sisson, Mount Shasta Mount Shasta Comment
  CAS-BOT-BC291005  Dieteria canescens var. shastensis R. E. Frenkel 1964-10-2 900 Siskiyou On Everitt Memorial Hwy., 1.7 miles north of McCloud River RR crossing, near Mount Shasta 1290 Comment
  CAS-BOT-BC209022  Digitaria sanguinalis Dorothy Parker 1949-8-21 73 Siskiyou YeCanahue(?) Gulch, Scott Valley 914 Comment
  SEINET260462 Image available Diplacus nanus David M. Thompson 1989-1 1022 Siskiyou 10.0 mi NE of Weed along Hwy 97 NW side of rd 1150 Comment
  CAS-BOT-BC153727  Diplacus nanus C. L. Hitchcock; J. S. Martin 1939-7-9 5318 Siskiyou Between King's Castle and Black Mt., west side of ridge 1828 Comment
  SEINET8211074  Diplacus nanus W. B. Cooke, V. G. Cooke 1966-7-16 37213 Siskiyou above Hotlum Station, Mt. Shasta. 1676 Comment
  HSC33972  Dodecatheon hendersonii J. P. Smith 1974-5-25 7463 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  RSA215607  Dodecatheon jeffreyi Gilbert Muth 1969-8-11 1362 Siskiyou Ridge south of Boulder Peak. 2317 Comment
  HSC29258  Dodecatheon jeffreyi Frederick W. Oettinger 1968-8-3 380 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: At 'Base Camp Meadow' between Diamond and Hancock Lakes 201 Comment
  HSC90894  Draba carnosula Jennifer Whipple 1976-7-1 1233 Siskiyou Near Little Crater Lake 2195 Comment
  CAS-BOT-BC41755  Draba howellii John Thomas Howell 1937-7-24 13417 Siskiyou Salmon-Trinity Alps. Caribou Basin. 2286 Comment
  JEPS53534  Draba nemorosa Geo. D. Butler 1909-4-4 575 Siskiyou near Yreka; near Yreka Comment
  CAS-BOT-BC41306  Draba pterosperma John Thomas Howell 1939-8-8 15160 Siskiyou Marble Mountains. Black Mountain. Comment
  CAS-BOT-BC311788  Draba verna John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53385 Siskiyou Yreka 792 Comment
  UC144190  Draperia systyla A. A. Heller 1905-6-5 7966 Siskiyou Near Shasta Springs Comment
  HSC64754  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-7-17 4460 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC40051  Drymocallis glandulosa var. glandulosa J. O. Sawyer 1970-7-4 2327 Siskiyou At Cedar Flat Cabin 1402 Comment
  SBBG3019  Drymocallis glandulosa var. glandulosa H. and M. Dearing 1939-7-1 3770 Siskiyou W of Etna on Etna Crk Comment
  UC519045  Drymocallis lactea var. austiniae Elmer I. Applegate 1923-8-20 3910 Siskiyou w end of Medicine Lake Comment
  CAS-BOT-BC159295  Drymocallis lactea var. lactea Alice Eastwood 1921-7-28 10901 Siskiyou Medicine Lake Comment
  HSC29474  Drymocallis lactea var. lactea Frederick W. Oettinger 1969-7-13 1002 Siskiyou High Lake Basins near English Peak: Marble Mtn. Wilderness Area; N of upper English Lake 1951 Comment
  HSC76866  Drymocallis lactea var. lactea K. T. Stillman 1976-9-9 476 Siskiyou Marble Mtn. Wilderness Area; N and NE side of Black Mtn. Comment
  CAS-BOT-BC158421  Drymocallis rhomboidea Louis C. Wheeler 1934-6-19 2732 Siskiyou Klamath National Forest. Cottonwood Creek 1432 Comment
  HSC4381  Dysphania botrys R. C. Wunner 1965-9-1 496 Siskiyou Lava Beds National Monument, 1 mi. S of NW Ranger Station. 1220 Comment
  CAS-BOT-BC113721  Eleocharis acicularis Carl B. Wolf 1927-8-26 989 Siskiyou On the Klamath River, 5 mi. below Hornbrook. Comment
  HSC26910  Eleocharis acicularis J. P. Smith, J. O. Sawyer 1971-9-17 4776 Siskiyou Shallow water at edge of Little Duck Lake Comment
  JEPS19409  Eleocharis bella B. C. Goldsmith 1916-9-9 22 Siskiyou Klamath Hot Springs Comment
  JEPS19425  Eleocharis macrostachya B. C. Goldsmith 1916-9-9 26 Siskiyou Klamath Hot Springs Comment
  CAS-BOT-BC113319  Eleocharis montevidensis David Daniels Keck 1949-7-19 s.n. Siskiyou 6.5 mi SW of Yreka on road to Ft. Jones, nr head of Yreka Creek at first spring. 1127 Comment
  UCD61279  Elymus aristatus L. Whitney 1935-7-15 3470 Siskiyou Near Bullseye Lake, 2 miles southeast of Medicine Lake. Comment
  CAS-BOT-BC227913  Elymus elymoides M. B. Dunkle 1945-7-22 9241 Siskiyou Klamath National Forest. Wooley Pocket 2133 Comment
  RSA239025  Elymus glaucus Frederick W. Oettinger 1969-8-16 1391 Siskiyou Edge of talus 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
  UC1265398  Elymus glaucus F. W. Oettinger 1969-9-3 1622 Siskiyou English Peak Salmon Mountains (s slope, w Siskiyou Co.) 2072 Comment
  HSC45893  Elymus glaucus Laura Witherspoon 1978-8-10 74 Siskiyou Klamath National Forest. In cut block on Ball Mtn. Comment
  CAS-BOT-BC206602  Elymus glaucus subsp. glaucus W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Mountains Comment
  CHSC93530  Elytrigia intermedia subsp. barbulata Lowell Ahart; John Dittes 2005-6-10 12121 Siskiyou North side of the corral, end of Salvadori Road, Nelson Ranch, about 1 1/4 miles (air) south of Highway 99/97 Cutoff, about 5 1/4 miles (air) east-southeast of Grenada. 785 Comment
  CHSC106263  Elytrigia pontica subsp. pontica Lowell Ahart; John Dittes 2010-7-30 16956 Siskiyou About 30 yards west of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  RSA34679  Epilobium anagallidifolium W. Bridge Cooke, V. G. Cooke 1946-8-29 17615 Siskiyou Basin above Panther Creek Meadows Mount Shasta 2744 Comment
  CAS-BOT-BC94895  Epilobium angustifolium R. C. Wenk 2006-9-2 547 Siskiyou Trail to Caribou Lakes from Big Flat Meadow, above Big Conrad Gulch 1950 Comment
  RSA463114  Epilobium angustifolium subsp. circumvagum S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  UC1483446  Epilobium brachycarpum J. Sawyer and J. Cole 1980-7-22 3964 Siskiyou nw slopes of Cedar Mt. Klamath National Forest, Bray Quad. 1524 Comment
  UC1190251  Epilobium ciliatum subsp. ciliatum Ira L. Wiggins 1955-7-22 13450 Siskiyou 9.5 mi above Cecilville; South Fork of Salmon River 1066 Comment
  POM259015  Epilobium ciliatum subsp. ciliatum W. Bridge Cooke 1940-8-8 15419 Siskiyou Mount Shasta: Along the lower Squaw Valley Creek just below the McCloud intake along a lane Comment
  POM261009  Epilobium ciliatum subsp. ciliatum W. Bridge Cooke 1941-9-5 16276 Siskiyou Along the spring creek at MacBride Springs, Mount Shasta. 1524 Comment
  SDSU8813  Epilobium ciliatum subsp. ciliatum D. F. Howe 1972-7-5 4873 Siskiyou 0.6 mile south of Oregon state line on road to Happy Camp. 1707 Comment
  POM204518  Epilobium ciliatum subsp. glandulosum Louis C. Wheeler 1934-8-10 3096 Siskiyou Siskiyou Mountains, Jaynes Canyon 1372 Comment
  UC618829  Epilobium clavatum W. Bridge Cooke 1938-8-18 11479 Siskiyou along Summit Trail above Horse Camp; Mount Shasta, Horse Camp Springs 2514 Comment
  UC164046  Epilobium densiflorum Geo. D. Butler 1910-6-29 1614 Siskiyou Yreka Creek Comment
  HSC68572  Epilobium glaberrimum Maralyn A. Renner 1980-6-23 696 Siskiyou W Fork Seiad Creek 878 Comment
  UC1408900  Epilobium glaberrimum subsp. glaberrimum Frederick W. Oettinger 1969-8-3 1150 Siskiyou Halfway Spring Salmon Mountains, Marble Mountain Wilderness Area (English Lake to Diamond Lake trail, w Siskiyou Co., high lake basins in vicinity of English Peak) 1828 Comment
  HSC78326  Epilobium hallianum L. P. Janeway 1983-7-24 450 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  POM230571  Epilobium hallianum J. T. Howell 1937-7-26 13527 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 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
  HSC92085  Epilobium hornemannii subsp. hornemannii Jennifer Whipple 1976-6-30 1217 Siskiyou Wagon Creek drainage near Wagon Creek 2195 Comment
  HSC39817  Epilobium hornemannii subsp. hornemannii J. O. Sawyer 1969-7-27 1765 Siskiyou W of Little Duck Lake 2012 Comment
  RSA142623  Epilobium hornemannii subsp. hornemannii P. A. Munz 1960-8-22 24180 Siskiyou Panther Meadows, Mt. Shasta 2378 Comment
  HSC49637  Epilobium minutum J. P. Smith 1973-5-5 6521 Siskiyou Scott Bar along the Scott River Comment
  UC1408901  Epilobium minutum Frederick W. Oettinger 1969-7-11 981 Siskiyou n Hancock Lake (sw-running ridge of mt., w Siskiyou Co., High Lake Basins in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, Little Me 2042 Comment
  RSA120896  Epilobium minutum Milo S. Baker 1957-6-16 13157 Siskiyou Trip to Scott Mt. from turn off near Callahan, 5-6 mi. from turn off. Comment
  RSA237397  Epilobium minutum Frederick W. Oettinger 1969-7-11 981 Siskiyou Little Medicine Mountain, north of Hancock Lake. Salmon Mtns. High Lake Basin in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  RSA458714  Epilobium minutum Christopher Davidson 1975-6-5 2665 Siskiyou Just above gate on special service rd branching SE off rd from Gazelle to Callahan 9.3 mi. W of Gazelle. 1471 Comment
  JEPS82422  Epilobium oreganum Gilbert Muth 1966-8-1 483 Siskiyou Marble Valley horse pasture Marble Mt. Wilderness Area 1792 Comment
  UC399180  Equisetum hyemale subsp. affine Geo. D. Butler 1909-6-22 877 Siskiyou Goosenest foothills Comment
  RSA239283  Equisetum hyemale var. affine Frederick W. Oettinger 1966-7-25 34 Siskiyou Along Timber Gulch Bank, Salmon River District, Klamath National Forest, Cecilville 701 Comment
  CDA42478  Equisetum laevigatum L. Ahart, John Dittes 2006-6-1 12107 Siskiyou 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. Comment
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Oct 5 2019
  CAS-BOT-BC57807  Equisetum laevigatum J. H. Thomas 1949-6-16 941 Siskiyou 10 mi. n. of Gazelle. Comment
  POM256462  Equisetum laevigatum Edward Lee 1934-8-10 1021 Siskiyou Klamath River, south bank between McKinney and Parker house creeks (near Hamburg) 610 Comment
  CAS-BOT-BC204510  Eragrostis cilianensis Dorothy Parker 1948-8-24 86 Siskiyou Along the road in Plowman's Valley 1188 Comment
  HSC45899  Eragrostis mexicana subsp. virescens Laura Witherspoon 1978-8-30 111 Siskiyou Klamath National Forest. Rd. to Ball Mtn. Lookout 2134 Comment
  CAS-BOT-BC168334  Eremogone congesta var. congesta Alice Eastwood 1912-8-30 s.n. Siskiyou Mount Eddy Comment
  CDA4624  Ericameria bloomeri Eldon Paddock, A. Gilbert 1979-8-28 Siskiyou Snowmans Summit, Highway 89 south of Mount Shasta, Siskiyou County. Comment
  CAS-BOT-BC298246  Ericameria nauseosa var. oreophila Geo. D. Butler 1910-8-15 1839 Siskiyou Shasta Valley Comment
  CAS-BOT-BC299466  Ericameria nauseosa var. speciosa Louis C. Wheeler 1934-8-26 3223 Siskiyou Trapper Cr., Siskiyou Mts. 1859 Comment
  CHSC72229  Ericameria nauseosa var. speciosa Vernon H. Oswald; Lowell Ahart 1998-9-16 9630 Siskiyou Butte Valley National Grassland near the junction of Meiss Lake-Sams Neck Rd. and hwy. 97 ca. 5 mi north of Macdoel. 1295 Comment
  HSC104144  Ericameria nauseosa var. speciosa Dana York 2011-9-8 3084 Siskiyou Klamath National Forest, Marble Mountain Wilderness, along summit of Marble Mountain, ~2.1 km N of Black Marble Mountain 2120 Comment
  JEPS21517  Ericameria nauseosa var. speciosa Geo. D. Butler 1908-9-7 312 Siskiyou near Yreka (upper field on Butler's Ranch) Comment
  JEPS25652  Erigeron aliceae Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-9 7294 Siskiyou above meadow at Poker Flat 1536 Comment
  UC581713  Erigeron aliceae Joseph P. Tracy 1935-8-4 14523 Siskiyou head of Plummer Creek (e of Mary Blaine Mt., at point called Snow Prarie); , Snow Prarie 1828 Comment
  CDA4407  Erigeron austiniae Vernon H. Oswald & Lowell Ahart 1998-6-11 9214 Siskiyou Klamath National Forest boundary on Old State Highway, 1.5 miles south of the railroad crossing south of Mount Hebron. Comment
  UC1619968  Erigeron bloomeri Barbara Ertter 1990-7-14 9323 Siskiyou ca. 4 airmiles w. Mt. Shasta City (Wagon Creek on e. side of Mt. Eddy, ridge s. & above creek); Mt. Eddy, Wagon Creek 1950 Comment
  CHSC57412  Erigeron bloomeri var. bloomeri L. P. Janeway 1984-6-22 874 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. 1645 Comment
  CAS-BOT-BC294524  Erigeron breweri var. breweri Lemmon 1880-7-1 s.n. Siskiyou Mt Eddy near Shasta Comment
  UCR51769  Erigeron breweri var. klamathensis L. C. Wheeler 1934-8-6 03055 Siskiyou Klamath Ranges; Siskiyou Mountains, Rock 'Gulch' [Creek] off Jaynes Canyon 1829 Comment
  HSC22451  Erigeron cervinus J. O. Sawyer 1969-7-25 1520 Siskiyou SE facing slope W of Sugar Lake 1845 Comment
  UC1540130  Erigeron compositus Dean W. Taylor 1987-6-26 9072 Siskiyou 2 mi w Medicine Lake; Little Mount Hoffman 2209 Comment
  CHSC88385  Erigeron divergens Jenny Marr 1993-7-1 144 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UCD77643  Erigeron eatonii var. plantagineus Robert E. Preston 2002-6-20 1833 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope 1911 Comment
  UC1299458  Erigeron eatonii var. plantagineus Freed W. Hoffman 1948-7-12 2459 Siskiyou Little Shasta to Mt. Hebron road 10 mi w Mt. Hebron 1615 Comment
  SDSU3937  Erigeron filifolius D. F. Howe 1972-7-8 4879 Siskiyou 9.5 miles north of Weed on #97. 1158 Comment
  RSA165609  Erigeron foliosus var. confinis Clare B. Hardham 1961-6-30 8007 Siskiyou Near White Mt. 1829 Comment
  HSC2404  Erigeron glacialis var. glacialis William J. Ferlatte 1966-8-17 400 Siskiyou Caribou Basin 1982 Comment
  HSC39257  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-2 1698 Siskiyou E facing slope W of Little Duck Lake 2317 Comment
  JEPS80508  Erigeron glacialis var. hirsutus Gilbert Muth 1966-7-24 446 Siskiyou Marble Mtn Wilderness area Marble Valley 1792 Comment
  CAS-BOT-BC295397  Erigeron inornatus Annetta Carter 1939-8-21 1474 Siskiyou Near crest of peak above southeast end of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2286 Comment
  LA203587  Erigeron inornatus Edward Lee; 1934-8-14 1113 Siskiyou near summit of Little Grayback, Siskiyou-Del Norte County line 1828 Comment
  PASA1715  Erigeron inornatus Frank W. Peirson 1923-7-20 Siskiyou 2 miles below Whitney Creek on the road to Weed Comment
  UC630402  Erigeron inornatus var. inornatus Annetta Carter 1939-8-21 1474 Siskiyou near crest of peak above se end of Taylor Lake (12 mi sw of Etna); Salmon Mountains 2286 Comment
  CAS-BOT-BC295363  Erigeron petrophilus R. C. Wenk 2006-9-2 551 Siskiyou Trail to Caribou Lakes from Big Flat Meadow 1950 Comment
  HSC41051  Erigeron petrophilus var. viscidulus J. O. Sawyer 1969-7-9 1108 Siskiyou Dry slope above Little Duck Lake. Grandiorite 2012 Comment
  POM357413  Erigeron petrophilus var. viscidulus M. B. Dunkle 1945-1 9309 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  POM35918  Erigeron petrophilus var. viscidulus Geo. D. Butler 1910-7-9 1786 Siskiyou Shackleford Creek 1372 Comment
  HSC92398  Erigeron tener Jennifer Whipple 1977-8-5 2193 Siskiyou Near Little Crater Lake 2195 Comment
  CAS-BOT-BC224136  Eriodictyon californicum Doris K. Kildale; J. W. Gillespie 1929-6-25 8355 Siskiyou Klamath River, 6 miles north of Hornbrook 609 Comment
  HSC68481  Eriodictyon californicum Maralyn A. Renner 1980-1 817 Siskiyou Slopes N of Moffett Creek 945 Comment
  OBI78913  Eriogonum Anthony Baniaga 2011-7-8 430 Siskiyou Klamath National Forest, along Salmon River on Highway 93. quadrangle. 694 Comment
  SEINET7064420  Eriogonum collinum A. G. Vestal 1963-6-1 s.n. Siskiyou Ca. 4.6 miles southeast of Hornbrook. (NAD83/WGS84) UTM Zone 10, 535702mE, 4633239mN. Comment
  UC637153  Eriogonum compositum var. compositum Edward Lee 1934-8-15 1134 Siskiyou summit of road from Happy Camp to Waldo (Oregon); Klamath National Forest, Indian Creek watershed 1615 Comment
  CAS-BOT-BC250063  Eriogonum compositum var. compositum Lillian Mott 1976-7-4 28 LM76 Siskiyou Cook and Green Pass road north of Seiad Valley at waterfowl 1463 Comment
  JEPS98387  Eriogonum congdonii Vernon H. Oswald 2000-8-28 9958 Siskiyou Rock Fence Lake Road (40N18) 0.6 mi from its jct. with Kangaroo Lake Road 1737 Comment
  CAS-BOT-BC246488  Eriogonum diclinum H. A. Thomas; J. H. Thomas 1954-7-24 4508 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville 1981 Comment
  CAS-BOT-BC246492  Eriogonum diclinum Doris K. Kildale 1928-8-20 6620 Siskiyou Hancock Lookout, on trail to Marble Mt. 2151 Comment
  HSC19516  Eriogonum diclinum J. O. Sawyer 1969-7-19 1425 Siskiyou SW facing slope above Deacon Lee Trail 2180 Comment
  CAS-BOT-BC255706  Eriogonum douglasii var. meridionale K. T. Stillman 1976-6-26 107 Siskiyou Marble Mountain Wilderness Area Comment
  SDSU6526  Eriogonum elatum D. F. Howe 1965-8-8 4124 Siskiyou South side of Little Grayback, Klamath National Forest. 1524 Comment
  JEPS84299  Eriogonum elatum var. elatum L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6331 A Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 1/2 air mi from Red Butte) 1730 Comment
  CAS-BOT-BC261212  Eriogonum hirtellum D. F. Howe 1962-8-4 s.n. Siskiyou Baldy Mt. 1432 Comment
  HSC77153  Eriogonum hirtellum L. P. Janeway 1983-8-7 522 Siskiyou Peak 5148 near end of USFS Rd. 17N32 19 mi. from Indian Creek Rd. 1555 Comment
  UC1475703  Eriogonum hirtellum G. L. Clifton 1979-8-5 12714 Siskiyou near Twin Valley (close to town of Happy Camp); Preston Peak quadrangle 1646 Comment
  RSA756416  Eriogonum hirtiflorum David Gowen 2007-7-12 780 Siskiyou South of the town of Lake Shastina. Along dirt road to dump/dirt storage area off of Big Springs Road, and just north of Jackson Ranch Road. Comment
  HSC59935  Eriogonum lobbii D. L. Goforth 1979-7-19 259 Siskiyou Trinity Alps Wild Area, Caribou Lakes Basin 2104 Comment
  JEPS94393  Eriogonum marifolium Vernon Oswald and Lowell Ahart 1997-7-28 8782 Siskiyou Forest Route 56 (42N56) 3.7 mi e of Forest Route 49 (edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave); Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave 1755 Comment
  POM165282  Eriogonum marifolium E. B. Copeland 1903-8-15 3916 Siskiyou Mt. Shasta 2348 Comment
  UC1601649  Eriogonum marifolium Dr. E. B. Copeland 1903-8-15 3916 Siskiyou Mt. Shasta 2346 Comment
  UC912735  Eriogonum marifolium Alice Eastwood 1921-7-25 10801 Siskiyou near Pilgim Creek nursery Comment
  LA206881  Eriogonum marifolium Lewis S. Rose; 1937-7-25 37588 Siskiyou Mount Shasta 1767 Comment
  CAS-BOT-BC263176  Eriogonum marifolium var. cupulatum Alice Eastwood 1912-9-1 2073 Siskiyou Mount Shasta Comment
  CAS-BOT-BC263195  Eriogonum marifolium var. cupulatum R. H. Bohmannson 1926-7-1 s.n. Siskiyou Mt. Shasta Comment
  HSC48943  Eriogonum marifolium var. marifolium D. L. Goforth 1979-7-19 249 Siskiyou Klamath National Forest, Trinity Alps Wilderness; Caribou Lakes Basin, 0.3 mi. NW of Caribou Lake. 2134 Comment
  UC1540014  Eriogonum microthecum var. ambiguum Mitchell 1936-5-9 12 Siskiyou sse sloipe of Schonchin Butte Lava Beds National Monument, Schonchin Butte 1569 Comment
  CAS-BOT-BC261620  Eriogonum nudum var. nudum R. Tofsrud; J. M. Tucker 1948-8-2 1753 Siskiyou Outskirts of McCloud Comment
  SEINET11262471  Eriogonum nudum var. nudum D. W. McNeal 1978-6-2 2157 Siskiyou Along shoulder of Hwy #96, 6.8 mi s of Happy Camp.; 0 Comment
  CAS-BOT-BC269743  Eriogonum nudum var. oblongifolium Carl B. Wolf 1927-8-26 1043 Siskiyou On the Klamath River, 4 mi. north of Gottville Comment
  CAS-BOT-BC272488  Eriogonum nudum var. pubiflorum Geo. D. Butler 1908-7-5 213 Siskiyou Near Yreka Comment
  HSC43073  Eriogonum nudum var. pubiflorum J. P. Smith, J. O. Sawyer 1972-5-28 5366 Siskiyou 2.7 mi. N of Rd. 8 and Sugar Creek on Hwy. 3 915 Comment
  UCD77662  Eriogonum nudum var. pubiflorum Robert E. Preston 2001-6-23 1566 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
  CAS-BOT-BC272492  Eriogonum nudum var. pubiflorum Ella Dales Cantelow 1938-10-23 2379 Siskiyou 16 mi. n.w. of Yreka, Hy. #96, Klamath River Comment
  POM105414  Eriogonum nudum var. pubiflorum Geo. D. Butler 1910-6-26 1605 Siskiyou Near Yreka 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
  UCD100865  Eriogonum pyrolifolium Dean Wm. Taylor 1975-8-14 5452 Siskiyou between Shasta Ski area and Green Butte. 2590 Comment
  UC2062600  Eriogonum pyrolifolium var. pyrolifolium Belinda Lo with Alex Randolph-Lowe 2017-8-25 363 Siskiyou SISKIYOU COUNTY: Ash Creek Butte, west of the peak. Comment
  RSA202123  Eriogonum pyrolifolium var. pyrolifolium C. F. Lagace 1966-8-24 s.n. Siskiyou Mount Shasta Ski Lodge. 2409 Comment
  CAS-BOT-BC267711  Eriogonum roseum W. R. Dudley 1899-8-22 s.n. Siskiyou Above Callahan's Comment
  CAS-BOT-BC267707  Eriogonum roseum Louis C. Wheeler 1934-9-19 3282 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  RSA123700  Eriogonum spergulinum var. reddingianum M. S. Baker, H. K. Wagnon 1955-7-16 174 Siskiyou In dry, Powdery Shale-like rock on the east ridge leading to the summit of South Yolla Bally ( Mt. Linn) 2287 Comment
  RSA123624  Eriogonum sphaerocephalum G. D. Barbe 1955-6-28 s.n. Siskiyou 0.3 mi. north of Callahan on dry, rocky hillside. 1006 Comment
  HSC103626  Eriogonum strictum var. greenei Thomas W. Nelson, Jane Nelson 1983-8-12 7587 Siskiyou Along Forest Service Rd. 40N02, ~ 1 mile north of junction with State Route 3 at Scott Mountain Summit 1646 Comment
  HSC43453  Eriogonum strictum var. proliferum Jennifer Whipple 1976-9-3 1772 Siskiyou Near Little Crater Lake 2195 Comment
  UC55401  Eriogonum strictum var. proliferum Harley P. Chandler 1901-7-2 1733 Siskiyou Etna Mills North Coast Ranges, Etna Mills 914 Comment
  UC727196  Eriogonum strictum var. proliferum A. A. Heller 1918-7-16 13028 Siskiyou Mt. Eddy 2682 Comment
  CAS-BOT-BC540704  Eriogonum ternatum Dana York 2012-7-21 3134 Siskiyou Siskiyou Mountains: Klamath National Forest, ca. 500 m NE of Red Butte 1950 Comment
  CAS-BOT-BC267950  Eriogonum umbellatum Elmer I. Applegate 1935-6-11 9503 Siskiyou Upper Ice Cave area, Lava Beds National Monument Comment
  HSC67771  Eriogonum umbellatum J. O. Sawyer, J. Cole 1980-7-20 3801 Siskiyou E side of Grouse Hill 2134 Comment
  CAS-BOT-BC267972  Eriogonum umbellatum var. argus James L. Reveal; Darin S. Reveal 1978-8-8 4808 Siskiyou Along the road from Scott Mountain Summit on California Highway 3 on the Gazelle-Callahan Road via Big Carmen Lake (USFS #40N08), 2.5 miles northeast of the Summit and about 1 mile northeast of the Lake, at the end of a ridge about 0.3 mile north of the.. 1737 Comment
  RSA181627  Eriogonum umbellatum var. argus Dorothy Parker 1950-8-6 460 Siskiyou Dry granite rocks, Salmon Mt. 1799 Comment
  UC1282017  Eriogonum umbellatum var. argus Louise Kellogg Aug 8 1953-Aug 9 1953 114 Siskiyou Scott Mountain Public Campground Scott Mountains, Klamath National Forest 1630 Comment
  UC1409204  Eriogonum umbellatum var. argus Frederick W. Oettinger 1968-8-4 398 Siskiyou ridge s English Peak Lookout; Salmon Mountains, Marble Mountain Wilderness 2225 Comment
  CHSC57443  Eriogonum umbellatum var. modocense L. P. Janeway 1984-6-22 878 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. 1645 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
  HSC43440  Eriogonum umbellatum var. nelsoniorum Jennifer Whipple 1976-9-3 1773 Siskiyou E facing slopes near Little Crater Lake 2195 Comment
  RSA183428  Eriogonum umbellatum var. nevadense J. M. Tucker, L. K. Mann 1963-8-18 3761 Siskiyou Saddle between Marble Mountain and SW ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area 2104 Comment
  UC1312940  Eriogonum umbellatum var. nevadense J. M. Tucker and L. K. Mann 1963-8-18 3761 Siskiyou top of saddle between Marble and sw ridge of Black Mountain; Marble Mountain Wilderness Area 2103 Comment
  POM165270  Eriogonum umbellatum var. polyanthum W. A. Setchell, C. Dobie 1902-07 4113 Siskiyou Session Mt. Shasta. Comment
  POM165271  Eriogonum umbellatum var. polyanthum E. B. Copeland 1903-7-6 3496 Siskiyou Hornbrook. Comment
  UCD77650  Eriogonum umbellatum var. polyanthum Robert E. Preston 2001-7-21 1708 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W se 1/4 Section 15 2026 Comment
  CAS-BOT-BC435530  Eriogonum ursinum var. erubescens James L. Reveal; Julie D. Knorr 2002-8-5 8371 Siskiyou Scott Bar Mountains, N and W slope and ridge of Deadwood Baldy Peak, Klamath Naitonal Forest 1725 Comment
  UC1413437  Eriogonum vimineum James L. Reveal, Caroline G. Reveal 1974-8-17 3797 Siskiyou about 12 mi sw Gazelle (along the Callahan-Gazelle road, about 16 mi ne of Callahan) 1219 Comment
  CAS-BOT-BC262370  Eriogonum vimineum Gordon H. True No date on label 3295 Siskiyou Scott Valley, just west of Fort Jones 792 Comment
  RSA254926  Eriogonum vimineum James L. Reveal, Caroline G. Reveal 1974-8-17 3796 Siskiyou Along California Highway 3, 4.5 mi. east of Callahan and 2.5 southeast of the junction with the county road to Gazeele 1372 Comment
  CAS-BOT-BC112325  Eriophorum crinigerum William Bridge Cooke 1940-6-6 15054 Siskiyou Among rocks on the shores of Castle Lake. 1676 Comment
  CAS-BOT-BC300958  Eriophyllum lanatum Alice Eastwood 1923-5-20 11864 a Siskiyou Shasta Springs Comment
  POM302176  Eriophyllum lanatum Ynez Whilton Winblad 1941-6-20 s.n. Siskiyou Between Weed and Yreka Comment
  CAS-BOT-BC301100  Eriophyllum lanatum var. achilleoides A. A. Heller 1915-7-16 12101 a Siskiyou North side of Mt. Eddy 1371 Comment
  UC134265  Eriophyllum lanatum var. achilleoides H. E. Brown Jun 1 1897-Jun 10 1897 336 Siskiyou near Sisson 1083 Comment
  UC643288  Eriophyllum lanatum var. achilleoides W. Bridge Cooke 1940-6-27 15207 Siskiyou n side of mountain along the logging road above Hotlum Station (on lava fields in the Lava Park); Mount shasta 1371 Comment
  CAS-BOT-BC301118  Eriophyllum lanatum var. achilleoides L. Constance 1933-6-21 E 83 Siskiyou South side of the Siskiyou Mts., 1 mile south of the Oregon-California State Line Comment
  RSA68880  Eriophyllum lanatum var. achilleoides A. E. Culbertson 1943-7-1 76 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts.; 2000' above Sacramento. within 10 air miles of its headwaters to the west. Comment
  CAS-BOT-BC301450  Eriophyllum lanatum var. grandiflorum Lewis S. Rose 1937-7-3 37392 Siskiyou Black Butte, N. of Mt. Shasta City 1005 Comment
  HSC19555  Eriophyllum lanatum var. integrifolium J. O. Sawyer 1969-8-1 1634 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  HSC5609  Eriophyllum lanatum var. integrifolium R. C. Wunner 1965-6-6 89 Siskiyou California Lava Beds National Monument; near Caldwell Ice Cave 1402 Comment
  HSC2273  Eriophyllum lanatum var. lanceolatum Geo. D. Butler 1910-5-23 1394 Siskiyou Humbug Mtn. 1220 Comment
  HSC98326  Eriophyllum lanatum var. lanceolatum G. L. Clifton, Griswold 1979-6-28 6118 Siskiyou Near Upper Devils Peak, close to the town of Seiad Valley 1738 Comment
  JEPS80585  Eriophyllum lanatum var. lanceolatum Gilbert Muth 1965-7-29 134 Siskiyou trail to Marble Mountain Lookout; Marble Mt. Wilderness Area 1792 Comment
  POM301745  Eriophyllum lanatum var. lanceolatum Marion Ownbey, Fred G. Meyer 1940-7-4 2174 Siskiyou Siskiyou Mts. Northwest of Hornbrook. Comment
  RSA238888  Eriophyllum lanatum var. lanceolatum Frederick W. Oettinger 1969-8-18 1435 Siskiyou Northeast of Horse Range Lake. Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area 1822 Comment
  RSA240055  Eriophyllum lanatum var. lanceolatum Frederick W. Oettinger 1969-8-18 1414 Siskiyou Pierce Draw, Horserange Lake Trail. Salmon Mountains, High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area. 1738 Comment
  UC1084738  Eriophyllum lanatum var. lanceolatum Douglas Barbe 1957-7-14 392 Siskiyou s Big Flat Camp (gravel border of river); Salmon River 1524 Comment
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Mar 6 2013
  SEINET8687384 Image available Eriophyllum lanatum var. lanceolatum G. D. Butler 1910-6-23 1602 Siskiyou Yreka Creek Comment
  NY168706  Eriophyllum rixfordii S. P. Rixford 1913-1 s.n. Siskiyou South side of Shaft Rock Mountain, near Hilt Comment
  UC198755  Eruca vesicaria subsp. sativa Annie M. Alexander and L. Kellogg 1911-6-6 117 Siskiyou Gazelle Comment
  POM133498  Eryngium articulatum E. B. Copeland 1903-8-13 3819 Siskiyou Sisson. 1067 Comment
  CAS-BOT-BC54575  Erysimum capitatum L. E. Smith 1913-5-25 280 Siskiyou Gazelle. Comment
  CAS-BOT-BC54585  Erysimum capitatum R. E. Frenkel 1965-6-14 942 Siskiyou On Everitt Memorial Highway, 2.7 miles north of McCloud River RR crossing near Mount Shasta. 1508 Comment
  UC117673  Erysimum capitatum Mrs. R. M. Austin June 1894 Siskiyou Willow Creek Valley Comment
  CDA33622  Erysimum capitatum R. A. Price 2010-7-3 1655 Siskiyou Along Forest Service Road 17 (Stewart Springs Road); 5 miles east of crest. 0 Comment
  POM95435  Erysimum capitatum Geo. D. Butler 1910-5-4 1273 Siskiyou Dry hill near Yreka Comment
  HSC19557  Erysimum perenne J. O. Sawyer 1969-6-2 1006 Siskiyou Summit above Albert Lake 2256 Comment
  HSC69046  Erysimum perenne Maralyn A. Renner 1980-8-7 2343 Siskiyou Ridge just E of saddle, S of Rattlesnake Meadow 1799 Comment
  HSC91048  Erysimum perenne Jennifer Whipple 1976-7-14 1474 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  CHSC86451  Erythranthe guttata Jenny Marr 1993-7-1 68 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NE of Meiss Lake. 1349 Comment
  SEINET14287547  Erythranthe guttata G. D. Butler 1910-5-29 1423 Siskiyou Near Yreka. Comment
  SDSU10772  Erythranthe guttata D. F. Howe 1972-7-5 4872 Siskiyou 0.6 mile from Oregon State line on road to Happy Camp. 1707 Comment
  SJSU917  Erythranthe guttata J. W. Tilden 1946-6-20 1007 Siskiyou Spring Flat, NW from Fort Jones, Scott R Comment
  JEPS61854  Erythronium grandiflorum W. L. Jepson 1907-7-5 2826 Siskiyou Marble Mt. Comment
  HSC18984  Erythronium grandiflorum subsp. grandiflorum G. L. Clifton 1979-7-1 6175 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  CAS-BOT-BC133304  Erythronium klamathense Alice Eastwood 1921-7-24 s.n. Siskiyou Castle Lake 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
  UC165317  Eschscholzia californica Geo. D. Butler 1910-5-7 1301 Siskiyou Yreka Comment
  CAS-BOT-BC403674  Eschscholzia californica Doris K. Kildale 1929-6-25 8368 Siskiyou 6 miles north of Klamath River at Hornbrook on Pacific Highway Comment
  HSC16750  Eschscholzia californica R. C. Wunner 1965-6-15 191 Siskiyou Lava Beds National Monument, SE side of Caldwell Butte near old cinder pit 1402 Comment
  HSC68331  Eucephalus ledophyllus var. ledophyllus Maralyn A. Renner 1980-6-26 1238 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC42977  Euonymus occidentalis J. O. Sawyer, Ken Stillman 1976-5-29 2736 Siskiyou Along Specimen Creek 915 Comment
  POM87489  Euphorbia crenulata Geo D. Butler 1910-4-22 1220 Siskiyou Kidder Creek Comment
  UC375458  Euphorbia crenulata Geo. D. Butler 1908-7-4 67 Siskiyou near mouth of Shasta River Comment
  CDA35318  Euphorbia crenulata W. Martin & R. Taylor 1975-8-15 s.n. Siskiyou West of Greenview on Mill Creek. 0 Comment
  CHSC268  Eurybia integrifolia V. Holt 1943-8-14 Siskiyou Marble Mountains. 1219 Comment
  SEINET5708047 Image available Eurybia radulina Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7700 Siskiyou Scott Mts. Collected along Road 17, 10.3 miles SW from the intersection of I-5 and Stewart Springs Rd.; Scott Mountains 1755 Comment
  UCD98900  Fallopia japonica T. C. Fuller 1963-8-26 11152 Siskiyou Dunsmuir Grade, Hwy 99 to Mt. Shasta City, 0.5 mi. n. of the limits of Dunsmuir. Comment
  CAS-BOT-BC94540  Festuca californica R. C. Wenk 2006-7-24 531 Siskiyou Scott Mountains, border between Trinity and Siskiyou Counties, forest near the Pacific Crest Trail, 1/2 km E of Hwy 3 1700 Comment
  HSC49215  Festuca californica J. O. Sawyer, K. T. Stillman Jul 1977 2795 Siskiyou E of the Little N Fork Trail 732 Comment
  CAS-BOT-BC278729  Festuca idahoensis Clarence R. Quick 1959-6-19 59 -04 Siskiyou 3 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  CAS-BOT-BC278733  Festuca idahoensis Louis C. Wheeler 1934-6-1 2658 Siskiyou Klamath National Forest, N. Hungry Creek 1219 Comment
  HSC27483  Festuca idahoensis J. P. Smith, J. O. Sawyer 1972-5-28 5382 Siskiyou 0.2 mi. E of Butcher Gulch on the Cecilville-Forks of Salmon road. 732 Comment
  HSC43028  Festuca idahoensis J. O. Sawyer, K. T. Stillman 1976-7-2 2801 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  HSC76770  Festuca idahoensis K. T. Stillman 1976-8-7 374 Siskiyou Marble Mtn. Wilderness Area, Box Camp Mtn. 2195 Comment
  UCD66277  Festuca roemeri Rimo Bacigalupi 1959-7-2 7232 Siskiyou Big Flat Campground, headwaters of South Fork of the Salmon River, near north base of Caribou Mtn. and just south of low divide (Trinity County boundary) separating Coffee Creek drainage from that of the Salmon River. 1508 Comment
  CAS-BOT-BC279070  Festuca rubra L. E. Smith 1915-6-1 s.n. Siskiyou Sisson 1524 Comment
  UC154512  Fragaria vesca Harley P. Chandler Jun 1901 1558 Siskiyou near Marble Mountain (Klamath River to Marble Mountain); North Coast Ranges 1828 Comment
  CAS-BOT-BC437073  Fragaria vesca subsp. bracteata A. A. Heller 1916-6-20 12406 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC53412  Frangula californica subsp. occidentalis Copeland 1903-9-6 3863 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC53416  Frangula californica subsp. occidentalis Marion Ownbey; Fred G. Meyer 1940-7-8 2224 Siskiyou Dry hillside along Indian Creek, 12 miles above Happy Camp Comment
  CAS-BOT-BC55715  Frangula rubra subsp. obtusissima Alice Eastwood 1921-7-31 11013 Siskiyou Shasta Springs Comment
  CAS-BOT-BC55719  Frangula rubra subsp. obtusissima A. A. Heller 1905-6-1 s.n. Siskiyou Between Upper Soda Spring and Shasta Retreat Comment
  CAS-BOT-BC59596  Frangula rubra subsp. rubra John Thomas Howell 1934-7-4 12402 Siskiyou Se. croner of Siskiyou Co. Comment
  CAS-BOT-BC223583  Fraxinus latifolia Carl B. Wolf 1927-8-26 998 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  POM130859  Fraxinus latifolia E. B. Copeland 1903-7-4 3559 Siskiyou Klamathon Comment
  RSA261460  Fritillaria J. M. Tucker, L. K. Mann 1963-7-7 3721 Siskiyou Ca. 1/4 mile down the trail (north of) from the lake, Paradise Lake, at the base of Kings Castle on east side, Marble Mountain Wilderness Area 1982 Comment
  SBBG57788  Fritillaria atropurpurea H. and M. Dearing 1938-6-28 203 Siskiyou Wagon Camp, Mt Shasta 1828 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
  UC15017  Fritillaria pudica F. W. Hooper 1897-3-27 Siskiyou Litttle Shasta Comment
  POM109777  Fritillaria recurva Geo D. Butler 1909-4-14 596 Siskiyou Humbug Creek Comment
  UCD132354  Gaillardia aristata T. C. Fuller; G. D. Barbe 1972-6-14 947 Siskiyou in pasture north of Weed, ca. 1 mile north of US 97 on Hoy Road. 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
  UC1258445  Galium aparine Maralyn A. Renner 1980-7-23 1827 Siskiyou Pacific Crest Trail near ridge about 1 mi e Cook and Green Pass; Klamath National Forest, Seiad Valley Quad. 1752 Comment
  HSC28215  Galium bolanderi Carl W. Mize 1972-6-8 25 Siskiyou 351 Comment
  JEPS18603  Galium bolanderi Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-26 5962 Siskiyou about 3 1/2 mi below (ne) Gumboot Lake; Canyon of South Fork of Sacramento River 1402 Comment
  UCD121766  Galium grayanum J. M. Tucker; L. K. Mann and Sandra L. Holloway 1963-8-18 3755 Siskiyou Southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area. 2133 Comment
  UCD77233  Galium triflorum Robert E. Preston 2001-6-30 1635 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W se 1/4 of nw 1/4 Section 14 1694 Comment
  CAS-BOT-BC182159  Garrya fremontii Louis C. Wheeler 1934-6-22 2764 Siskiyou Cottonwood Cr. Klamath National Forest 1066 Comment
  CAS-BOT-BC182274  Garrya fremontii L. E. Smith 1913-5-28 310 Siskiyou Yreka Comment
  CAS-BOT-BC182275  Garrya fremontii Alice Eastwood 1912-8-28 1945 Siskiyou Cantara Comment
  HSC36708  Garrya fremontii Brent Whitely 1975-7-5 141 Siskiyou 213 Comment
  HSC40240  Garrya fremontii J. P. Smith 1976-5-5 8690 Siskiyou Road between Sawyers Bar and Somes Bar 488 Comment
  SEINET10939948  Gayophytum Mary Merello 1993-6-25 Merello 723 Siskiyou Shasta National Forest. At end of Forest Service Road 39N 28, road to Lower Falls and Fowlers Campground. Open conifer woodlands. Disturbed. Along McCloud River. 970 Comment
  UC2028811  Gayophytum diffusum subsp. diffusum Neal Kramer 2012-7-20 2066 Siskiyou Approx. 1.5 miles west of Etna. Comment
  UC1096799  Gayophytum diffusum subsp. parviflorum Barbe 1957-7-13 378 Siskiyou Big Flat Public Camp North Bay Counties, Klamath National Forest (along path to the spring at w side of camp) 1524 Comment
  HSC16313  Gayophytum diffusum subsp. parviflorum D. M. Thomson 1965-6-19 97 Siskiyou Lava Beds National Monument, Merril Ice Cave by side of trail Comment
  HSC184  Gayophytum diffusum subsp. parviflorum William J. Ferlatte 1966-8-3 256 Siskiyou Mtn. Meadow Ranch 1524 Comment
  HSC29480  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1969-8-12 1351 Siskiyou Salmon Mtns., above Willow Spring on English Lake Trail 1677 Comment
  HSC29482  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1968-8-7 434 Siskiyou Salmon Mtns., E side of Hancock Lake 1890 Comment
  JEPS27525  Gayophytum heterozygum W. L. Jepson 1914-8-9 5744 Siskiyou McCloud 1036 Comment
  POM258616  Gayophytum heterozygum W. Bridge Cooke 1940-7-12 15343 Siskiyou Mount Shasta: Along the Sisson Southern Trail near MacBride Springs. 1524 Comment
  HSC92087  Gayophytum humile Jennifer Whipple 1976-7-9 1387 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  HSC16394  Gayophytum humile R. C. Wunner 1965-6-25 287 Siskiyou Lava Beds N.M., Indian Well Cave, Indian Well 1433 Comment
  POM192605  Gayophytum racemosum M. S. Baker 1898-8-1 504 Siskiyou S west side of Medicine Lake Comment
  SEINET6744749 Image available Gentiana setigera C. C. Harris, S. K. Harris 1939-8-29 976 Siskiyou Half Moon Meadow, Marble Mountian Primitive Area, Calfornia Comment
  SEINET202641  Gentianella amarella Unknown 1954-8-13 4798 Siskiyou 0.1 mile north of summit of divide west of Scott Mountain, along road from Callahan to Carrville and Trinity Center, just north of Trinity-Siskiyou County line. 1615 Comment
  UC35458  Gentianopsis simplex W. C. Blasdale 1894-7-30 Siskiyou Sissons Comment
  RSA0034455  Geranium viscosissimum var. viscosissimum Geo. D. Butler 1910-6-6 1458 Siskiyou Quartz Valley. Comment
  HSC30508  Geum macrophyllum Frederick W. Oettinger 1969-8-9 1316 Siskiyou Near Young's Cabin, Salmon Mts. 1357 Comment
  POM258025  Geum triflorum var. ciliatum C. Leo Hitchcock, J. S. Martin 1939-7-9 5326 Siskiyou 1/2 mile SE of King's Castle, Marble Mts. 1829 Comment
  HSC19393  Gilia capitata J. O. Sawyer 1968-7-23 563 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake 1829 Comment
  RSA780162  Gilia capitata subsp. capitata Brian W. Keelan 2011-8-12 s.n. Siskiyou Siskiyou Mountains, ca. 2 miles E of Cook and Green Pass and 5 miles S of the Oregon border (30 mils W of Interstate 5) 1719 Comment
  UC23896  Gilia capitata subsp. capitata T. H. Gilbert June 15 1899-July 15, 1899 Siskiyou Scott River Valley Comment
  UC637163  Gilia capitata subsp. capitata Edward Lee 1934-8-14 1098 Siskiyou near summit Little Grayback (Siskiyou-Del Norte County line) 1859 Comment
  HSC44649  Githopsis specularioides J. P. Smith 1973-5-5 6534 Siskiyou Scott Bar along the Scott River Comment
  JEPS93898  Glyceria borealis Vernon H. Oswald and Lowell Ahart 1998-7-21 9352 Siskiyou ne of Weed and s of Macdoel (along Old State Highway on w side of Bray); Bray, Old State Highway 1417 Comment
  HSC67700  Glyceria elata Maralyn A. Renner 1980-8-20 2536 Siskiyou S Fork Salmon River at Big Flat 1524 Comment
  JEPS84095  Glyceria elata L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6378 Siskiyou ca 0.5 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass) 1900 Comment
  UC197495  Glyceria elata Geo. D. Butler 1910-7-14 1780 Siskiyou Shackleford Creek Comment
  UC246741  Gnaphalium palustre H. E. Brown Jul 15 1897-Jul 31 1897 531 Siskiyou s side Mt. Shasta 1524 Comment
  POM211383  Gnaphalium thermale L. C. Wheeler 1934-7-24 2958 Siskiyou Long John Creek, Siskiyou Mts. Mt. Diablo Meridian. 1402 Comment
  HSC19399  Goodyera oblongifolia J. O. Sawyer 1968-7-10 458 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  UC1585405  Goodyera oblongifolia R. Raiche, K. Zadnik and H. Forbes 1989-3-10 Siskiyou at Cook and Green Pass, Siead Valley Road, [UCBG 55] Green Pass; Siead Valley Road, Cook Pass, Green Pass 1425 Comment
  HSC4414  Grayia spinosa R. C. Wunner 1965-6-13 157 Siskiyou Lava Beds National Monument, Petroglyph Section, S face 1220 Comment
  RSA59842  Grayia spinosa E. K. Balls 1950-5-17 14726 Siskiyou SW corner of Tule Lake, (State Game Refuge). 1265 Comment
  CHSC154  Hackelia californica V. Holt 1932-6-23 Siskiyou McCloud River. Comment
  HSC22138  Hackelia micrantha J. O. Sawyer 1969-8-1 1675 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  HSC61913  Hackelia micrantha Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  POM254142  Hackelia micrantha C. L. Hitchcock 1939-7-9 5338 Siskiyou 2 miles south of Black Mt., near Kings Castle. 1829 Comment
  RSA77831  Hackelia micrantha E. E. Stanford 1930-8-14 2086 Siskiyou Below summit of Sonora Pass, in open ground in loose soil 2896 Comment
  UC1186470  Hackelia setosa John Weiler, A. P. Nelson 1960-6-26 60222 Siskiyou 0.6 mi n of Bacon Rind Public Camp (s of Sawyers Bar) Comment
  SEINET11849258  Haplopappus racemosus subsp. pinetorum Unknown 1953-1 119 Siskiyou Scott Mountains, Scott Mountain Public Campground, Klamath National Forest 1631 Comment
  SBBG111489  Hastingsia alba J. M. Tucker, L. K. Mann 1963-7-7 3722 Siskiyou ca. 0.25 mi N of Paradise Lake, Marble Mtn Wilderness 1981 Comment
  UC705670  Hastingsia alba Marion Ownbey, Fred G. Meyer 1940-7-7 2216 Siskiyou near summit Cayenne Ridge; Marble Mountain Comment
  UCSB13153  Hastingsia alba 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
  CAS-BOT-BC504598  Hastingsia alba Ira L. Wiggins 1955-7-27 13532 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC504619  Hastingsia alba Peter H. Raven 1956-9-5 10443 Siskiyou Near North Fork of the Sacramento River 2194 Comment
  RSA299411  Hastingsia alba W. L. Jepson 1914-8-13 5789 Siskiyou Sisson. 1098 Comment
  SEINET12044227  Hastingsia alba L. S. Rose 1937-1 37398 Siskiyou Weed 945 Comment
  CAS-BOT-BC302458  Hazardia whitneyi var. discoidea Annie M. Alexander; Louise Kellogg 1949-7-29 5899 Siskiyou Trail to Hidden Lake, above Sky High Lake. Sky High Valley, Marble Mountains 1767 Comment
  CAS-BOT-BC306355  Helenium Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  UCD148983  Helenium autumnale T. C. Fuller 1960-8-23 4966 Siskiyou around 1 mile southeast of Greenview, Scott Valley. Comment
  CAS-BOT-BC306741  Helenium bigelovii Peter H. Raven 1956-9-5 10451 Siskiyou North Fork of Sacramento River 2194 Comment
  UC456025  Helenium bigelovii I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1828 Comment
  CAS-BOT-BC306754  Helenium bigelovii Ira L. Wiggins 1955-7-26 13510 Siskiyou Banks of S Fork of Salmon R just above mouth of Blind Horse Creek 886 Comment
  JEPS35016  Helenium bigelovii Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou stage road n Sisson; Region of the Upper Sacramento, Sisson 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
  HSC92206  Helianthella californica var. shastensis Jennifer Whipple 1976-7-14 1481 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  CAS-BOT-BC305578  Helianthus bolanderi W. R. Dudley 1899-8-25 s.n. Siskiyou Gazelle Comment
  JEPS107479  Heliotropium curassavicum Lowell Ahart, John Dittes 2005-6-9 12038 Siskiyou Rocky hill, about 20 yards north of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  UC133579  Heliotropium curassavicum A. A. Heller 1905-6-19 8064 Siskiyou Grenada Comment
  CAS-BOT-BC313466  Hemizonella minima John Thomas Howell 1937-7-21 13170 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  SEINET11847002  Hemizonella minima H. P. Chandler 1901-1 1641 Siskiyou Marble Mountain, North Coast Ranges 2438 Comment
  RSA183682  Heracleum maximum Gilbert Muth 1965-7-28 129 Siskiyou Marble Valley Guard Station, Marble Valley Comment
  RSA65598  Herniaria hirsuta subsp. cinerea L. C. Wheeler 1935-6-15 3588 Siskiyou 3 miles S of Greenview, Scott Valley. Comment
  UC1005597  Hesperochiron pumilus Frank W. Gould 1940-5-15 1237 Siskiyou Goosenest Mt. near Bull Meadows; Goosenest Mt. 1524 Comment
  UC1733726  Hesperochiron pumilus Frank Gould, Kay H. Beach 1940-5-15 1237 Siskiyou Bull Meadows Comment
  POM203173  Hesperochiron pumilus Alice Eastwood, J. T. Howell 1934-4-20 1778 Siskiyou Gazelle. Comment
  SD40681  Hesperocyparis bakeri Carl B. Wolf, E. R. Johnson 1934-10-8 Siskiyou Modoc lava Beds, 1 mile northeast of Timbered Crater on Old Stage Road from Dana to Little Hot Springs Valley 1220 Comment
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Mar 29 2012
  UC17265  Hesperolinon micranthum M. K. Curran July 1887 Siskiyou Sissons Comment
  UC1212409  Hesperolinon micranthum Leo Whitney 1934-6-20 1835 Siskiyou cutover land near Lower Sheep Well (25 mi ne of Tennant) 1524 Comment
  POM40918  Heterotheca oregona var. rudis Geo D. Butler 1910-7-16 1790 Siskiyou Oro Fino Comment
  UC1557834  Heterotheca oregona var. rudis J. Semple and S. Heard 1986-8-16 8496 Siskiyou 9.8 km s of road to Kanagaroo Lake (just ne of CA-3, se of Etna, on road to Gazelle) Comment
  SBBG83848  Heterotheca villosa var. minor K. T. Stillman 1976-9-10 497 Siskiyou Marble Mtn Wilderness Area, E side of Black Mtn Comment
  CAS-BOT-BC420719  Heuchera micrantha M. B. Dunkle 1945-7-19 9224 Siskiyou Sky-High Bluffs, Klamath forest 2194 Comment
  CAS-BOT-BC420938  Heuchera micrantha var. diversifolia D. E. Breedlove 1962-6-11 3348 Siskiyou On moist bank of Canyon Creek with Pinus ponderosa and Salix so., abour 20 miles west of Fort Jones; Marble Mountains 914 Comment
  CAS-BOT-BC318545  Hieracium greenei Gilbert J. Muth 1969-8-7 1268 Siskiyou Boulder Peak Ridge 2468 Comment
  JEPS104845  Hieracium greenei Dean W. Taylor 1996-6-28 15754 Siskiyou Antelope Mountain (about 8 air miles south of Yreka) 1798 Comment
  RSA238745  Hieracium horridum Frederick W. Oettinger 1967-8-14 268 Siskiyou English Peak Look-out. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2229 Comment
  UCSB63903  Hieracium nudicaule Oswald, Vernon; Ahart, Lowell 1997-7-28 Siskiyou Forest Route 56 (42N56) 3.7 mi. east of Forest Route 49, edge of Burnt Lava Flow Virgin Area at Yellow Jacket Ice Cave; T42N R4E NE1/4 NE1/4 Sect. 6 1755 Comment
  CAS-BOT-BC316028  Hieracium scouleri Doris K. Kildale 1929-7-20 8633 Siskiyou Trail up South Fork of Indian Creek to Elk Lick 1371 Comment
  UC922283  Hieracium triste Annie M. Alexander and Louise Kellogg 1949-7-22 5837 Siskiyou Trail to Paradise Lake. Kings Castle; Marble Mountains 1920 Comment
  CAS-BOT-BC280784  Holcus lanatus Melissa A. Berry 1957-7-2 s.n. Siskiyou Fay Lane, Scott Valley 822 Comment
  HSC31488  Holodiscus discolor Steve Selva, Roger Jensen 1974-8-23 42 Siskiyou 1 mi. W of Doe Flat campground Comment
  HSC4856  Holodiscus discolor J. O. Sawyer 1968-9-9 652 Siskiyou Ridges S of Cyclone Gap 1738 Comment
  CAS-BOT-BC152372  Holodiscus discolor var. discolor Alice Eastwood 1912-8-30 1990 Siskiyou Mount Eddy Comment
  UC1181805  Holosteum umbellatum subsp. umbellatum Dorothy Parker 1950-4-1 384 Siskiyou Siskiyou Mts., Scott Valley, Hartstrand Gulch, along road Scott Valley; Siskiyou Mts., , Hartstrand Gulch 853 Comment
  SEINET516278  Hordeum brachyantherum subsp. brachyantherum Vernon H. Oswald 1997-7-28 8787 Siskiyou SE of Medicine Lake on road 43N54 at a meadow 0.6 mi SE of Paynes Springs. 1920 Comment
  UC197104  Hordeum brachyantherum subsp. brachyantherum Geo. D. Butler 1910-6-15 1564 Siskiyou Yreka Creek Comment
  CDA2203  Hordeum murinum subsp. leporinum G. D. Barbe, J. T. Howell, T. C. Fuller 1980-5-2 2781 Siskiyou Yreka. West of Motel 6, south of town, north of Greenhorn Creek Road. Comment
  JEPS44540  Horkelia daucifolia Geo. D. Butler 1909-5-8 713 Siskiyou e Yreka (Shasta Valley); Shasta Valley Comment
  CAS-BOT-BC143950  Horkelia daucifolia A. A. Heller 1922-6-22 13668 Siskiyou About 5 miles south of Yreka Comment
  POM266007  Horkelia daucifolia Lincoln Constance 1942-5-13 2913 Siskiyou Scott River 2 miles S of Scott Bar. 549 Comment
  UCSB12365  Horkelia daucifolia Dearing, Hugh; Dearing, Margaret 1939-6-3 Siskiyou Near Scotts Bar Comment
  JEPS47183  Horkelia fusca subsp. parviflora W. L. Jepson 1940-7-3 20117 Siskiyou about 5 mi se Bartle (Large meadow.); Big Bear Flat 1219 Comment
  POM250749  Horkelia fusca subsp. parviflora W. Bridge Cooke 1938-7-1 11135 Siskiyou Mt. Shasta. 1677 Comment
  SBBG72545  Horkelia fusca var. brownii A. A. Heller 1927-8-1 14435 Siskiyou near Shasta City (Sisson) Comment
  SBBG15762  Horkelia fusca var. parviflora D. Myrick 1961-6-20 286 Siskiyou rd to Bear Springs E of Mt Shasta City 1371 Comment
  RSA275399  Horkelia tridentata subsp. flavescens J. O. Sawyer, E. Cope 1977-6-18 2926 Siskiyou along Clear Creek Trail between Ten Mile Creek and Bear Pen Creek. 610 Comment
  UC221752  Horkelia tridentata subsp. tridentata Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2448 Siskiyou Mount Shasta vicinity Comment
  UC453992  Horkelia tridentata subsp. tridentata I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Summit of Mt. Bradley 1981 Comment
  CAS-BOT-BC539438  Horkelia tridentata var. tridentata A. A. Heller 1916-8-24 12565 Siskiyou Near Sisson 1074 Comment
  HSC61502  Hosackia crassifolia Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail 1220 Comment
  UCD77834  Hosackia crassifolia Robert E. Preston 2001-6-23 1623 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W ne 1/4 Section 15 1706 Comment
  CHSC63336  Hosackia pinnata Vernon H. Oswald; Lowell Ahart 1994-7-11 6401 Siskiyou Gumboot Creek on the upstream side of Forest Rd. 26 (to Mt. Shasta), ca. 0.5 mi NE of Gumboot Lake, W of Dunsmuir. 1783 Comment
  UC585172  Hydrophyllum occidentale E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2003 Siskiyou 1.5 mi w Mt. Shasta City (above Sulloway Creek, spur of Rainbow Ridge, e and ne slope); Rainbow Ridge 1188 Comment
  RSA238849  Hydrophyllum occidentale Frederick W. Oettinger 1969-8-19 1442 Siskiyou Due northwest of saddle in ridge between English Peak and David Mountain. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1936 Comment
  SBBG25919  Hypericum anagalloides D. Myrick 1966-8-11 1536 Siskiyou Adams Lake, Mountain Meadow Ranch, Big Flat, Trinity Alps 1828 Comment
  CAS-BOT-BC400990  Hypericum anagalloides W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Mountains Comment
  UC187747  Hypericum formosum var. scouleri Katharine Brandegee July 1887 Siskiyou Edgewood Comment
  SD131865  Iliamna bakeri L. R. Heckard, L. Constance and 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
  HSC58931  Ipomopsis aggregata Marvin Butler 1971-8-13 126 Siskiyou Near Cyclone Gap, close to the town of Cave Junction 1555 Comment
  UC106647  Ipomopsis aggregata A. Eastwood 1893-8-10 Siskiyou Mt. Shasta Comment
  UC23341  Ipomopsis aggregata Harley P. Chandler June, 1901 1624 Siskiyou near Marble Mtn North Coast Ranges 2133 Comment
  UC535989  Ipomopsis aggregata Elmer I. Applegate 1923-8-20 3901 Siskiyou Medicin Lake Comment
  UC705684  Ipomopsis aggregata Marion Ownbey and Fred G. Meyer 1940-7-5 2181 Siskiyou e side Mt. Shasta Comment
  UC726812  Ipomopsis aggregata A. A. Heller 1938-7-12 15250 Siskiyou 5 mi n Weed (along US Hwy 97) 1066 Comment
  RSA12495  Ipomopsis aggregata subsp. formosissima C. B. Wolf 1934-7-4 5942 Siskiyou Horse Creek Road to Dry Lake Lookout, Siskiyou Mountains, 13.5 miles from Horse Creek Bridge on Klamath River 1524 Comment
  UC1540153  Ipomopsis congesta subsp. palmifrons Dean Wm. Taylor, Glenn L. Clifton, R. Doug Stone 1987-8-7 9252 Siskiyou Caldwell Butte Lava Beds National Monument (on crater floor at n interior) 1499 Comment
  CAS-BOT-BC133695  Iris tenax Gail Newton 1980-6-20 438 Siskiyou Near Bald Mountain 1096 Comment
  RSA139181  Iris tenuissima Lee W. Lenz 1958-6-22 23530 Siskiyou 17 miles from Happy Camp, road to Cave Junction Comment
  CAS-BOT-BC88660  Isatis tinctoria T. C. Fuller 1962-6-11 8956 Siskiyou East side of Highway 99 to Black Butte Summit, 4.1 miles south of Weed. Comment
  JEPS13904  Isatis tinctoria unknown 1912-1 Siskiyou Comment
  RSA237981  Isoetes Frederick W. Oettinger 1968-8-5 708 Siskiyou Above Diamond Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak, Marble Mountain wilderness area. 2073 Comment
  HSC91420  Isoetes bolanderi Jennifer Whipple 1978-10-6 2435 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  RSA576951  Isopyrum stipitatum Louis C. Wheeler 1935-3-10 3371 Siskiyou Siskiyou Mountains: Miller Gulch off Klamath River. 671 Comment
  CAS-BOT-BC142726  Ivesia gordonii Alice Eastwood 1912-8-30 2028 Siskiyou Mount Eddy Comment
  RSA161166  Ivesia gordonii var. ursinorum Peter H. Raven 1956-9-4 10422 Siskiyou Summit of Mt. Eddy. 2759 Comment
  CAS-BOT-BC142866  Ivesia pickeringii Kevin Sawyer; John Sawyer; Jane Cole; J. P. Smith 1976-9-5 8970 Siskiyou 2.5 miles north of Trinity-Siskiyou Co. line on State Route 3. 1524 Comment
  CDA42385  Juncus articulatus Jodi Aceves 2014-8-15 PDR# 470 P06027656 Siskiyou 0 Comment
  HSC77295  Juncus articulatus L. P. Janeway 1983-6-25 340 Siskiyou E side of Klamath River, N side of Independence Cr. Br. 290 Comment
  UCD141327  Juncus balticus subsp. ater Morris Halperin 1930-5-17 s.n. Siskiyou near Montague, Schumacher Gulch. Comment
  CHSC40150  Juncus covillei L. P. Janeway 1983-8-26 612 Siskiyou At Poker Flat. NW part of meadow near dirt road. 1524 Comment
  LA19938  Juncus drummondii Wm. Bridge Cooke; 1939-7-13 13655 Siskiyou Mt. Shasta, near Squaw Creek 2285 Comment
  HSC78913  Juncus effusus subsp. effusus Paul Wilson 1984-8-26 354 Siskiyou Juanita Lake Reservoir, edge of lake 1555 Comment
  HSC34124  Juncus ensifolius J. O. Sawyer 1969-8-18 1991 Siskiyou S Sugar Lake Creek 1829 Comment
  HSC73220  Juncus ensifolius Gail Newton 1980-6-20 504 Siskiyou Near Bald Mtn. 1097 Comment
  UC1523845  Juncus howellii W. J. Ferlatte Jul 23 1986-Aug 4 1986 Siskiyou ca 1 mi n Trinity Co. line (Parks Creek Rd, on divide between Eddy Creek and Parks Creek) 2011 Comment
  HSC39847  Juncus mertensianus J. O. Sawyer 1969-7-12 1348 Siskiyou Edge of Sugar Lake 1799 Comment
  CAS-BOT-BC110804  Juncus mertensianus Wm. Bridge Cooke 1938-8-18 11475 Siskiyou Mount Shasta. Horse Camp Springs. Around several springs above Horse Camp along the Summit Trail. 2514 Comment
  CAS-BOT-BC127618  Juncus mertensianus Doris K. Kildale 1928-8-19 6504 Siskiyou English Lake, head of north fork of Salmon River. 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
  UC618809  Juncus parryi unknown 1938-8-18 11499 Siskiyou Horse Camp Mount Shasta Comment
  UC842429  Juncus parryi John Thomas Howell 1937-7-24 13425 Siskiyou Caribou Basin Salmon-Trinity Alps 1981 Comment
  POM256459  Juncus tenuis Edward Lee 1934-8-11 1028 Siskiyou Walker Creek canyon, a tributary of the Klamath River (east end of Seiad Valley). 610 Comment
  CAS-BOT-BC81142  Juniperus communis Louis C. Wheeler 1934-8-14 3123 Siskiyou Klamath National Forest, 1/2 mi. W. White. Mt. 1920 Comment
  HSC101736  Juniperus communis Michael Kauffmann, Jeffrey Kane 2013-7-24 16 Siskiyou Ridgeline within the Antelope Creek RNA 2186 Comment
  UC1408804 Image available Juniperus communis Robert F. Thorne and Fred Oettinger 1969-8-10 39011 Siskiyou s slope of Mt. Shasta Mt. Shasta National Forest, Mt. Shasta (on dry rocky volcanic ridges) 2438 Comment
  HSC30625  Juniperus occidentalis Frederick W. Oettinger 1969-8-25 1558 Siskiyou Fort Jones 915 Comment
  SD112325  Juniperus occidentalis Darley F. Howe 1961-8-3 3129 Siskiyou 56.5 miles east of Happy Camp, north of Klamath River 609 Comment
  UC401376  Juniperus occidentalis Geo. D. Butler 1909-3-6 580 Siskiyou dry hill near Yreka Comment
  NY20171  Juniperus occidentalis A. A. Heller 1905-6-9 s.n. Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM148750  Juniperus occidentalis var. occidentalis J. B. Feudge 1927-8-11 1618 Siskiyou Hornbrook Comment
  POM21709  Juniperus occidentalis var. occidentalis E. B. Copeland 1903-7-4 3545 Siskiyou Klamathon Comment
  CAS-BOT-BC56351  Kalmia microphylla subsp. microphylla G. J. Muth 1969-8-11 1367 Siskiyou Near Second Valley Lake 2194 Comment
  UC168979  Keckiella corymbosa Harley P. Chandler 1901-6-19 1516 Siskiyou Somes Bar; North Coast Ranges, Klamath River 426 Comment
  RSA239005  Keckiella corymbosa Frederick W. Oettinger 1966-7-19 31 Siskiyou North river bank of South Fork of Salmon River, 100 yards downstream from rock cut by river. Comment
  CAS-BOT-BC246176  Keckiella lemmonii A. A. Heller 1916-7-23 12493 Siskiyou Dunsmuir, along the road 640 Comment
  UC160458  Keckiella lemmonii I. J. Condit 1911-7-13 Siskiyou Dunsmuir Comment
  HSC4855  Kelloggia galioides J. O. Sawyer 1968-7-23 612 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  JEPS86079  Kelloggia galioides Wayne Roderick 1966-6-26 Siskiyou Cook and Green Pass summit; Cook and Green Pass 1371 Comment
  RSA238883  Kelloggia galioides Frederick W. Oettinger 1968-8-10 464 Siskiyou E side of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness. 1936 Comment
  UC397360  Kelloggia galioides Katharine Brandegee 1895-8-11 Siskiyou Mt. Shasta Comment
  UC455874  Kelloggia galioides I. J. Condit 1911-7-5 Siskiyou Mt. Bradley; Shasta Retreat 1524 Comment
  SD61003  Kochia scoparia Darley F. Howe 1964-8-4 Siskiyou Medoc National Forest, 1.6 miles north of Lava Beds National Monument, by water canal. 1220 Comment
  UCD123810  Kopsiopsis strobilacea J. M. Tucker; D. V. Hemphill 1974-7-27 4302 Siskiyou beside trail from Haypress Meadows to Monument Lake, on Sandy Ridge ca. 4 miles from Haypress Meadows; Marble Mountain Wilderness Area. 1859 Comment
  RSA0104247  Kopsiopsis strobilacea Frederick W. Oettinger 1968-8-17 550 Siskiyou Approx. 20 yards S off the Tom Taylor Cabin-Pine Lake trail just after one leaves the first patch of Red Fir woods (heading towards Pine Lake). 2072 Comment
  HSC69095  Kyhosia bolanderi Maralyn A. Renner 1980-8-4 2222 Siskiyou Flint Valley 1390 Comment
  CAS-BOT-BC340370  Kyhosia bolanderi Wm. Bridge Cooke 1939-8-22 13878 Siskiyou Mount Shasta. Below the Wagon Camp Sedge Swamp Comment
  CDA7519  Lactuca tatarica subsp. pulchella T. C. Fuller 1967-8-15 16260 Siskiyou 4 miles northeast of Macdoel. 0 Comment
  CAS-BOT-BC341696  Lagophylla ramosissima Lewis S. Rose 1945-6-22 45156 Siskiyou Walker, Klamath River 533 Comment
  CAS-BOT-BC341706  Lagophylla ramosissima Margaret M. Hanna 1958-6-21 s.n. Siskiyou 2 1/2 miles southeast of Dorris Comment
  HSC40422  Lapsana communis J. O. Sawyer 1973-7-15 2536 Siskiyou Junction of Deer Lick Creek and Wooley Creek 244 Comment
  CAS-BOT-BC204988  Lathyrus jepsonii var. californicus Geo. D. Butler 1910-7-6 1644 Siskiyou Shackleford Creek 914 Comment
  HSC61919  Lathyrus nevadensis var. nevadensis Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1555 Comment
  HSC61500  Lathyrus tracyi Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail 1220 Comment
  HSC60891  Leersia oryzoides Ken Stillman 1976-8-24 433 Siskiyou Along Klamath River at Williams Point. 366 Comment
  CAS-BOT-BC245660  Lemna turionifera Douglas Barbe 1955-6-29 050 Siskiyou 4.1 mi. southeast of Etna on the Eastside Rd. 914 Comment
  UCD115326  Lepidium appelianum B. Gormau 1926-6-1 s.n. Siskiyou White Mt. Ranch. Comment
  CHSC4184  Lepidium campestre R. Carter 1966-5-15 399 Siskiyou McConnahue Gulch, 4.5 mi. SE of Etna, in driveway of Parker home; along W side of driveway. 914 Comment
  CAS-BOT-BC89161  Lepidium draba L. E. Smith 1912-7-1 s.n. Siskiyou Yreka. Comment
  NY76302  Lepidium montanum subsp. canescens A. A. Heller 1905-6-19 8068 Siskiyou "No. 8068, collected June 19 in the Shasta Valley near Grenada station" Comment
  HSC41630  Lepidium perfoliatum Barbara Kelly 1977-5-21 432 Siskiyou Parking lot at Callahan, next to grocery store Comment
  CAS-BOT-BC12996  Lepidium virginicum Lewis S. Rose 1945-6-18 45099 Siskiyou Horse Creek and Klamath River. 502 Comment
  POM230550  Leptosiphon ciliatus J. T. Howell 1937-7-22 s.n. Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC30429  Leptosiphon harknessii Frederick W. Oettinger 1968-8-8 577 Siskiyou Marble Mtn. Wilderness Area, Tobacco Lake 1890 Comment
  RSA237969  Leptosiphon harknessii Frederick W. Oettinger, R. F. Thorne 1969-8-8 1294 Siskiyou Sundew Bog near English Lake. Salmon Mtns; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1829 Comment
  RSA237972  Leptosiphon harknessii Frederick W. Oettinger, R. F. Thorne 1969-8-4 1177 Siskiyou Tobacco Lake meadows. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  RSA237980  Leptosiphon harknessii Frederick W. Oettinger 1968-8-8 577 Siskiyou Tobacco Lake meadows. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  CAS-BOT-BC341890  Lessingia nemaclada Geo. B. Grant 1902-9-14 s.n. Siskiyou Dunsmuir Comment
  RSA151805  Lessingia nemaclada H. K. Sharsmith, Francia Chisaki 1959-8-20 4738 Siskiyou Wildcat Canyon road ca. 4 miles west of Callahan. 1067 Comment
  SDSU4719  Lessingia nemaclada D. F. Howe 1962-8-5 3395 Siskiyou 12 miles east of Happy Camp on #96. 518 Comment
  HSC30488  Leucothoe davisiae Frederick W. Oettinger 1968-8-1 347 Siskiyou Marble Mountain Wilderness Area, N end of Little Hancock Lake 2043 Comment
  HSC752  Leucothoe davisiae William J. Ferlatte 1966-8-3 279 Siskiyou Josephine Lake basin. 1677 Comment
  SEINET11990952  Leucothoe davisiae I. Knight, Knight, W. 1983-1 4934 Siskiyou Outflow of Cliff Lake.Upper Sacramento River watershed 1768 Comment
  HSC4437  Lewisia cotyledon William J. Ferlatte 1966-7-6 190 Siskiyou Caribou Basin 1982 Comment
  RSA464464  Lewisia cotyledon M. B. Dunkle 1945-7-19 9227 Siskiyou Marble Valley Summit; rocky ridge. Comment
  CAS-BOT-BC444051  Lewisia cotyledon var. cotyledon Geo. D. Butler 1910-6-5 1527 Siskiyou Log Lake Comment
  CAS-BOT-BC444044  Lewisia cotyledon var. cotyledon Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts., Cuddyhi Lake [Cuddihy Lakes] Comment
  CAS-BOT-BC444079  Lewisia leeana John Thomas Howell 1937-7-24 13437 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  RSA237455  Lewisia leeana Frederick W. Oettinger 1968-8-22 594 Siskiyou Rock crevices, slope between English Peak and Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2195 Comment
  SBBG124419  Lewisia leeana C. B. Hardham 1961-7-1 8011 Siskiyou White Mtn, just below summit 1981 Comment
  CAS-BOT-BC444193  Lewisia nevadensis G. J. Muth 1969-8-8 1294 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  UC1090386  Lewisia rediviva Milo S. Baker 1957-6-16 13122 Siskiyou Scott Mt. 1645 Comment
  HSC45147  Lewisia triphylla J. O. Sawyer, E. Cope 1977-6-20 2961 Siskiyou Behind Devil's Punchbowl 1829 Comment
  RSA233681  Lewisia triphylla R. F. Thorne, Frederick W. Oettinger 1969-8-10 38963 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  SBBG30566  Leymus cinereus D. Myrick 1968-6-22 1997 Siskiyou northern part of Lava Beds Nat Monument near Tule Lake Nat Wildlife Refuge 1310 Comment
  UC144162  Leymus cinereus A. A. Heller 1905-6-19 8069 Siskiyou Grenada Station Comment
  UC817326  Leymus cinereus L. E. Smith July 1915 Siskiyou Bray Comment
  SEINET10531236  Libocedrus decurrens Edward L. Greene 1876-9-6 Greene 1040 Siskiyou collected near Yreka Comment
  HSC23691  Ligusticum grayi J. O. Sawyer 1969-8-4 1867 Siskiyou Slope SW of Sugar Lake 2195 Comment
  CAS-BOT-BC508259  Lilium columbianum H. E. Brown 1897-6-1 344 Siskiyou Near Mt. Shasta 2133 Comment
  HSC22273  Lilium kelleyanum J. O. Sawyer 1969-8-4 1899 Siskiyou Above S Sugar Lake 2043 Comment
  HSC35786  Lilium kelleyanum J. O. Sawyer 1969-8-1 1611 Siskiyou Behind Horseshoe Lake 1921 Comment
  HSC67682  Lilium kelleyanum John S. Palmer 1980-7-24 623 Siskiyou Elk Hole 1503 Comment
  UC1409481  Lilium kelleyanum Frederick W. Oettinger 1968-8-6 420 Siskiyou se corner, vicinity of English Peak, w Siskiyou County Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
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Dec 13 2006
  CAS-BOT-BC509369  Lilium kelleyanum Albert M. Vollmer; Ira L. Wiggins 1940-7-5 7 Siskiyou On bottom of canyon and along banks of Cow Creek about 10 miles NE of Sawyer's Bar, on road to Etna. 975 Comment
  CAS-BOT-BC130819  Lilium pardalinum Geo. D. Butler 1910-6-6 1454 Siskiyou Quartz Valley Comment
  UC1034603  Lilium pardalinum Douglas Barbe 1955-6-29 47 Siskiyou 1.8 mi e Callahan (s bank of Scott River); Klamath Mountains, Scott River 975 Comment
  CAS-BOT-BC130821  Lilium pardalinum Lillian Mott 1977-7-4 27 LM76 Siskiyou Between Seiad Valley and Cook and Green Pass, at Horse Tail Falls 1219 Comment
  LA22067  Lilium pardalinum William Bridge Cooke; 1938-7-15 11197 Siskiyou Mount Shasta, along the creeks at Bear Springs 1523 Comment
  RSA761679  Lilium pardalinum Robert F. Thorne, Frederick W. Oettinger 1969-8-4 63355 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  JEPS84242  Lilium pardalinum subsp. wigginsii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6337 Siskiyou 7 mi nne of Seiad Valley (w of Cook and Green Pass, 1/2 air mi from Red Butte) 1730 Comment
  RSA68900  Lilium washingtonianum A. E. Culbertson 1943-7-2 57 Siskiyou Along Castle Lake road from town of Shasta; lower n. slopes of 6600 eastern spur of Trinity Mts., about 10 air miles from headwaters of Sacramento R., to west and 12 miles s.w. of Mt. Shasta. 1220 Comment
  SEINET8480955  Lilium washingtonianum W. Roderick 1967-7-28 s.n. Siskiyou SW side of Mount Shasta. 1372 Comment
  CAS-BOT-BC133027  Lilium washingtonianum subsp. purpurascens Ira L. Wiggins 1955-7-24 13489 Siskiyou Ridge betw. upper reaches of China Creek and Blind Horse Creek 1493 Comment
  CAS-BOT-BC133093  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
  UC163851  Linanthus harknessii Geo. D. Butler 1910-7-7 1657 Siskiyou Shackleford Creek 1219 Comment
  UC1037386  Linnaea borealis var. longiflora Douglas Barbe 1955-7-5 101 Siskiyou on French Creek about 12 mi s Etna; Klamath Mountains, French Creek 1097 Comment
  HSC43835  Linum lewisii Maralyn O'Meara 1974-5-27 489 Siskiyou Along FS Rd. 47N03 1280 Comment
  CHSC1014  Linum lewisii var. lewisii V. Holt 1932-7-7 Siskiyou Mt. Eddy 1524 Comment
  HSC67670  Listera convallarioides John S. Palmer 1980-7-24 591 Siskiyou Elk Hole 1503 Comment
  UC338558  Lithocarpus densiflorus unknown Sep 1889 Siskiyou near Sisson's 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
  CAS-BOT-BC432321  Lithophragma campanulatum Roxana S. Ferris; Laura Lorraine 1948-6-12 11855 Siskiyou 1.5 miles below summit of Gazelle Mountain Grade, E side 1417 Comment
  UC1222383  Lithophragma campanulatum Joseph P. Tracy 1951-6-16 19485 Siskiyou near State line summit of the Siskiyous at crossing Takilma-Happy Camp Road; summit of the Siskiyous Comment
  UC1408867  Lithophragma campanulatum Frederick W. Oettinger 1969-7-9 942 Siskiyou drying meadows nw Upper English Lake (High Lake basins in vicinity of English Peak, Marble Mountain Wilderness Area, Salmon Mountains, western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness, Upper English 1828 Comment
  SJSU6066  Lithophragma heterophyllum R. W. Trivelpiece 1971-6-1 4 Siskiyou East Fork of Horse Cr between White Mt & White Cloud Mt c. 5 mi from Oregon border 1219 Comment
  CAS-BOT-BC435633  Lithophragma heterophyllum Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-9 51 Siskiyou Off Hwy 96 at Somes Bar, 4 miles north, up Salmon River Hwy at the entrance to Wooley Crk. Trail head 289 Comment
  CAS-BOT-BC325941  Lithospermum californicum Volney Rattan 1879-6-1 s.n. Siskiyou Klamath Comment
  CAS-BOT-BC269146  Lolium perenne Geo. D. Butler 1910-6-15 1563 Siskiyou Near Yreka Comment
  UCD66313  Lolium perenne A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3425 Siskiyou 3 miles south of Yreka. Comment
  SEINET3143862  Lomatium californicum G. D. Butler 1910-5-18 1359 Siskiyou near Yreka Comment
  UC165418  Lomatium dissectum var. multifidum Geo. D. Butler 1909-5-8 746 Siskiyou hill near Yreka Comment
  RSA60802  Lomatium nevadense I. L. Wiggins 1950-5-28 12361 Siskiyou Margins of Carmen Lake, ca. 1.5 miles E of Scott Mtn road. 1738 Comment
  POM82356  Lomatium nudicaule Geo. D. Butler 1910-5-19 1363 Siskiyou Siskiyou County, Dry land, Yreka Comment
  CAS-BOT-BC217791  Lomatium peckianum Lincoln Constance; Reed C. Rollins 1942-5-14 2918 Siskiyou One mile east of Yreka, Klamath-Siskiyou Region 762 Comment
  LA53040  Lomatium peckianum Lincoln Constance; Emil diFulvio 1962-4-17 3751 Siskiyou 5.2 mi. S of Yreka 792 Comment
  RSA47618  Lonicera ciliosa Roxana S. Ferris, Laura Lorraine 1948-6-12 11731 Siskiyou French Creek Logging Road W of Callahan. 1067 Comment
  HSC42234  Lonicera conjugialis J. D. Mastrogiuseppe 1974-9-2 161 Siskiyou Above Kidd Creek. 1951 Comment
  JEPS24794  Lonicera conjugialis Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6803 Siskiyou headwaters Sacramento River (shore of Castle Lake); Castle Lake, Sacramento River 1661 Comment
  SBBG7342  Lonicera hispidula H. and M. Dearing 1939-6-30 3753 Siskiyou near Callahan Comment
  CAS-BOT-BC240638  Lonicera hispidula Doris K. Kildale 1928-7-3 5428 Siskiyou Forks of Salmon on Salmon River Comment
  CAS-BOT-BC240841  Lonicera interrupta Carl B. Wolf 1927-8-26 1029 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  RSA68924  Lotus crassifolius A. E. Culbertson 1943-7-12 33 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000 backwall; 14 miles SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  RSA105411  Lotus oblongifolius var. nevadensis G. D. Barbe 1955-6-29 048 Siskiyou 1.8 miles E of Callahan, S bank of Scott River 976 Comment
  UC726478  Lotus purshianus var. purshianus A. A. Heller 1919-6-30 13288 Siskiyou near Durney's Mill Comment
  CAS-BOT-BC140249  Luetkea pectinata Ira L. Wiggins 1955-7-29 13571 Siskiyou Pass at SW end of Caribou L., Salmon-Trinity Alps Primitive Area 2072 Comment
  HSC62027  Luetkea pectinata Al Hobart 25 Sep [year missing] Siskiyou Preston Peak Comment
  UC860313  Luetkea pectinata Louis C. Wheeler 1934-8-9 3089 Siskiyou Head of Jaynes Canyon; Siskiyou Mts. 1981 Comment
  UCD113633  Luetkea pectinata Joseph M. DiTomaso 1975-9-10 318 Siskiyou Caribou side of Sawtooth Ridge. 2194 Comment
  UCD113638  Luetkea pectinata J. M. Tucker 1963-7-8 3732 Siskiyou Trail to Marble Valley, ca. 2 miles south of Paradise Lake, Marble Mountain Wilderness Area. 1981 Comment
  SEINET6924762  Luetkea pectinata M. K. Solecki, J. B. Taft 1986-9-13 2169 Siskiyou Marble Mountain Wilderness, peak east of Marble Mountain. Comment
  SBBG3502  Lupinus albicaulis H. and M. Dearing 1939-6-19 3680 Siskiyou high up French Crk 914 Comment
  CDA27353  Lupinus albicaulis var. shastensis C. S. Giebner 1963-7-31 Siskiyou Kerr property, Flying K Ranch, Quartz Valley, ca. 2 miles south of Mugginsville. 0 Comment
  RSA11951  Lupinus albicaulis var. shastensis Elmer I. Applegate 1923-9-7 3853 Siskiyou Doggett Ridge, south slope of the Siskiyou Mountains. Comment
  RSA0003354  Lupinus albifrons Geo D. Butler 1910-5-2 1268 Siskiyou Around Yreka. Comment
  CAS-BOT-BC195970  Lupinus albifrons var. albifrons Charles Piper Smith 1947-5-13 47270 Siskiyou 9.2 miles east of Weed. Highway 97 Comment
  UC157010  Lupinus albifrons var. albifrons Geo. D. Butler 1908-6-20 366 Siskiyou near Yreka Comment
  SEINET10491224  Lupinus albifrons var. albifrons Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 687 Siskiyou 11 miles n of weed, on us hwy 97; decomposed lava, sandy on slight s-e-facing Slope; assoc. With juniper and artemisia, purshia and arctostaphylos 1250 Comment
  HSC65687  Lupinus albifrons var. flumineus J. P. Smith 1974-5-26 7390 Siskiyou Along FS Rd. 47N03 1524 Comment
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Feb 26 2013
  HSC2252  Lupinus andersonii Geo. D. Butler 1910-5-15 1349 Siskiyou Greenhorn Mtn. Comment
  JEPS104846  Lupinus andersonii Dean W. Taylor 1996-6-28 15753 Siskiyou Antelope Mountain (about 8 air miles south of Yreka) 1798 Comment
  RSA11948  Lupinus angustiflorus Elmer I. Applegate 1923-8-18 3877 Siskiyou Redshale Mountain, east side of Medicine Lake. Comment
  SEINET10871218  Lupinus arbustus subsp. silvicola Paul Gallian, Billy Joe Cox 1971-6-9 Gallian 688 Siskiyou 11 miles n of weed, on us hwy 97; decomposed lava, sandy on slight se facing Slope; assoc. With juniper, artemisia, purshia and arctostaphylos 1250 Comment
  SEINET10903806  Lupinus arbustus subsp. silvicola David B. Dunn, Billy Joe Cox 1971-6-10 Dunn 17952 Siskiyou 5 miles n of weed, on us hwy 97; in artemisia, prushia, pinus ponderosa, in Volcanic soil Comment
  SDSU4651  Lupinus argenteus D. F. Howe 1964-8-5 3936 Siskiyou 3 miles north of Dorris on # 97. Comment
  HSC2247  Lupinus aridus Geo. D. Butler 1910-6-4 1500 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC196696  Lupinus breweri var. breweri Jessie P. Rose 1908-7-1 193 Siskiyou Near summit of Ashland Butte, Siskiyou Mountains Comment
  CAS-BOT-BC215181  Lupinus croceus Arthur Menzies 1962-7-21 s.n. Siskiyou Mount Eddy 2529 Comment
  CAS-BOT-BC215177  Lupinus croceus Clare B. Hardham 1961-7-3 8067 Siskiyou South of Callahan Woods, Scott Mountains Comment
  RSA68872  Lupinus croceus A. E. Culbertson 1943-6-24 84 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
  SD125500  Lupinus klamathensis Melvin L. Conrad, D. B. Dunn, LeDoux 1973-6-2 6971 Siskiyou 1.5 miles west of the junction of Hwy 263 & Hwy 96 on Hwy 96, on south-facing slope of Klamath River Valley 730 Comment
  POM24889  Lupinus klamathensis Geo. D. Butler 1909-5-8 709 Siskiyou Shasta Valley Comment
  RSA523664  Lupinus lapidicola Richard Halse 1989-5-6 3817 Siskiyou Along Old Hwy 99, 3.2 miles south of Gazelle or 4.2 miles north of its jct with Old Stage Road. 888 Comment
  HSC2367  Lupinus latifolius William J. Ferlatte 1966-8-19 444 Siskiyou Head of Kidd Creek 2134 Comment
  POM10902  Lupinus latifolius subsp. viridifolius E. B. Copeland 1903-8-13 7306 Siskiyou Sisson Comment
  OBI35630  Lupinus lepidus var. lobbii M. B. Dunkle 1945-8-2 9285 Siskiyou Klamath Natl Forest, Marble Mts. King's Castle Comment
  JEPS57167  Lupinus lepidus var. sellulus L. R. Heckard 1967-8-13 1706 Siskiyou Mt. Eddy 2743 Comment
  UC454628  Lupinus lepidus var. sellulus I. J. Condit 1911-7-15 Siskiyou McCloud Comment
  UC598746  Lupinus lepidus var. sellulus C. Hart Merriam Sept. 1898 Siskiyou Sisson Comment
  UC85087  Lupinus lepidus var. sellulus J. W. Congdon 1900-8-13 Siskiyou Shasta Comment
  UCD108577  Lupinus lepidus var. sellulus Freed W. Hoffman 1948-7-13 2652 Siskiyou north of Tennant on Butte Creek road. 1295 Comment
  SEINET8056491  Lupinus luteolus G. D. Butler 1910-6-1 1447 Siskiyou Near Yreka Comment
  CHSC88303  Lupinus microcarpus Jenny Marr 1993-7-1 138 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA52463  Lupinus nanus var. apricus Dorothy Parker 1948-4-21 s.n. Siskiyou Callahan 952 Comment
  RSA105766  Lupinus obtusilobus W. Bridge Cooke 1938-8-21 11545 Siskiyou Horse Camp Mt. Shasta. 2591 Comment
  UC1506172  Lupinus obtusilobus Robert T. Clausen and Harold Trapido 1940-7-27 4969 Siskiyou 5 mi nne Mt. Shasta summit (w side of Mountainhouse Creek); Cascade Mtns, Sacramento River Basin, Mt. Shasta 1981 Comment
  UCSB17478  Lupinus onustus Breedlove, Dennis 1962-6-10 Siskiyou Along Indian Creek Road, 16.7 miles northwest of Happy Camp; Siskiyou Mountains 1127 Comment
  RSA237952  Lupinus polyphyllus subsp. polyphyllus Frederick W. Oettinger 1969-7-31 1111 Siskiyou Salmon Mountains, the High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1799 Comment
  RSA582454  Lupinus polyphyllus subsp. polyphyllus Louis C. Wheeler 1935-6-13 3572 Siskiyou Mill Creek, Quartz Valley. 884 Comment
  RSA60881  Lupinus polyphyllus subsp. polyphyllus Frank W. Gould 1938-6-28 487 Siskiyou Near and north of Mt. Shasta (where Highway 97 crosses Butte Creek). 1418 Comment
  UC1265315  Luzula comosa var. laxa F. W. Oettinger 1968-8-11 486 Siskiyou Just below Tom Taylor Cabin 2042 Comment
  CAS-BOT-BC499138  Luzula macrantha Peter F. Zika 2012-5-18 25885 Siskiyou Near entrance to Castle Crags State Park, above Castle Creek, Castella, 3 ir km SSE of Castle Dome 640 Comment
  CHSC4312  Luzula parviflora D. Parker 1965-7-24 898 Siskiyou Near Horse Range Creek, Salmon Mt. 1828 Comment
  UC843143  Luzula parviflora Louis C. Wheeler 1934-6-18 2726 Siskiyou Cottonwood Creek Siskiyou Mts., Cottonwood Creek 1310 Comment
  POM56187  Madia bolanderi E. B. Copeland 1903-8-15 3882 Siskiyou Sisson 1067 Comment
  JEPS40210  Madia elegans Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou Sisson's Sta. Region of the Upper Sacramento Comment
  CAS-BOT-BC343992  Madia elegans L. R. Abrams 1927-9-11 12147 Siskiyou Pacific Highway between Hilt and Hornbrook Comment
  CAS-BOT-BC343424  Madia gracilis unspecified 1902-9-11 s.n. Siskiyou Sisson Comment
  CAS-BOT-BC343432  Madia gracilis John Thomas Howell 1937-7-22 13320 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UC830825  Madia gracilis Lewis S. Rose 1937-7-26 37607 Siskiyou McCloud 1005 Comment
  OBI58649  Madia gracilis David J. Keil 1992-7-20 23493 Siskiyou Klamath NF, W of Fort Jones. Along Forest Rd 44N45, 3.9 mi S of Scott river rd Comment
  RSA11146  Madia gracilis subsp. gracilis C. B. Wolf 1934-7-6 5981 Siskiyou 1/4 mile east of Mt. Shasta City 1067 Comment
  RSA537395  Mahonia aquifolium W. Wisura, J. Romero 1991-10-17 4595 Siskiyou 1.5 mi up Sugar Creek Rd, N of Callahan. Comment
  RSA12612  Mahonia aquifolium C. B. Wolf 1934-7-5 5973 Siskiyou 7 mi. from Oak Knoll R. S. on Klamath River, on rd. to Dry Lake Lookout, Siskiyou Mts. 1372 Comment
  RSA237462  Mahonia nervosa Frederick W. Oettinger 1969-8-25 1551 Siskiyou Little North Fork stream along new trail from end of logging road to Devils Canyon trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1220 Comment
  SJSU6506  Maianthemum racemosum R. W. Trivelpiece 1972-6-15 121 Siskiyou Vann Creek near Bear Peak c. 15 mi SW of Happy Camp 1280 Comment
  RSA120635  Maianthemum racemosum subsp. amplexicaule G. D. Barbe 1955-8-1 323 Siskiyou Klamath Mountains: Summit of Mt. Bolivar 2470 Comment
  CAS-BOT-BC512766  Maianthemum racemosum subsp. amplexicaule John Thomas Howell 1937-7-23 13372 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC514183  Maianthemum stellatum Ira L. Wiggins 1955-7-23 13478 Siskiyou Banks of China Creek 1097 Comment
  RSA183443  Maianthemum stellatum J. M. Tucker 1963-7-5 3702 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
  UC165396  Malacothrix floccifera Geo. D. Butler 1910-6-4 1491 Siskiyou Shackleford Creek Comment
  UCD134395  Malacothrix floccifera Steve Selva; James Payne Smith, Jr 1970-7-15 3974 Siskiyou 1 mile west of junction California 3 and Road 8 leading to Sugar Creek. 1158 Comment
  RSA434910  Malva neglecta Louis C. Wheeler 1934-9-18 3278 Siskiyou Dutch Creek off Klamath River. Siskiyou Mts., Siskiyou Co. (Mt.Diablo Mer.) 701 Comment
  CDA32501  Melica aristata L. P. Janeway 2002-7-13 7642 Siskiyou Rainbow Mountain Quad; 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 Comment
  HSC77114  Melica bulbosa K. T. Stillman 1976-6-25 68 Siskiyou Marble Mountain Wilderness Area. 1829 Comment
  POM114773  Melica fugax Geo D. Butler 1910-4-30 1251 Siskiyou Yreka. Comment
  JEPS25669  Melica geyeri Rimo Bacigalupi with Mr. and Mrs. Van Deventer 1959-7-10 7312 Siskiyou 4 air mi nne Preston Peak (Twin Valley, watershed of Indian Creek); Siskiyou Mts., Twin Valley, Indian Creek 1493 Comment
  CAS-BOT-BC281312  Melica harfordii Marion Ownbey; Fred G. Meyer 1940-7-7 s.n. Siskiyou Near summit of Cayenne Ridge, Marble Mountain Comment
  UCD87367  Melica harfordii A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3438 Siskiyou Near Happy Camp. Klamath River. Comment
  UCD87563  Melica harfordii R. Tofsrud 1949-8-3 s.n. Siskiyou Scott River about 10 miles south of Scott Bar. Comment
  POM114778  Melica spectabilis Geo D. Butler 1910-4-19 1196 Siskiyou Yreka Comment
  HSC30607  Melica subulata Frederick W. Oettinger 1969-8-16 1394 Siskiyou Marble Mtn. Wilderness Area, SW of Wiregrass Meadow above English Lake. 1677 Comment
  POM211269  Mentha spicata Louis C. Wheeler 1934-9-22 3301 Siskiyou Walker, Klamath River, Siskiyou Mountains. (Mt Diablo Mer) 518 Comment
  UC454539  Mentzelia dispersa I. J. Condit 1911-7-31 Siskiyou Shasta Springs Comment
  CAS-BOT-BC428733  Micranthes californica G. J. Muth 1969-8-8 1282 Siskiyou Gap Meadow, Boulder Peak Ridge Comment
  CAS-BOT-BC429156  Micranthes odontoloma Gilbert Muth 1965-8-17 308 Siskiyou Lower Creek on trail to Blk. Mt. Comment
  CDA8390  Microseris laciniata subsp. laciniata T. C. Fuller 1958-6-19 1823 Siskiyou Highway 99, 3 miles south of Gazelle. 0 Comment
  CAS-BOT-BC349378  Microseris nutans Ira L. Wiggins 1955-7-27 13520 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  JEPS93851  Microseris nutans Vernon H. Oswald and Lowell Ahart 1998-6-11 9198 Siskiyou 9 air mi e of Grass Lake (22 air mi ne of Weed, Dry Lake on the s side of Tennant Road); Dry Lake, Tennant Road 1402 Comment
  UC1190270  Microseris nutans Ira L. Wiggins 1955-7-27 13520 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA68882  Microseris nutans A. E. Culbertson 1943-7-1 74 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west 1657 Comment
  RSA801991  Microseris nutans Leo Miller 1938-07 s.n. Siskiyou Siskiyou Mts. 1006 Comment
  RSA699535  Microsteris gracilis subsp. gracilis Jenny Marr 1993-07 0135 Siskiyou Butte Valley Wildlife Area, approx. 7 air miles NW of the town of MacDoel. 1350 Comment
  SEINET12345976  Mimulus H. P. Chandler 1901-1 1641 Siskiyou Marble Mountain, North Coast Ranges 2438 Comment
  UCD122135  Mimulus alsinoides Sandy Holloway 1963-4-11 35 Siskiyou Indian campground, Clement's Ranch, ca. 4 miles northwest of Montague. 762 Comment
  UC917313  Mimulus inodorus R. Tofsrud and J. M. Tucker 1948-8-3 1778 Siskiyou 3 mi (by road) below summit Happy Camp to Waldo (Oregon) road Comment
  POM204109  Mimulus layneae J. T. Howell 1934-7-4 12398 Siskiyou SE corner of Siskiyou County Comment
  POM5168  Mimulus layneae Copeland 1903-4-5 3857 Siskiyou Igerna. Comment
  RSA535564  Mimulus layneae David M. Thompson 1929-6-29 1023 Siskiyou Near Black Butte, mid-way between Mt. Shasta city and Weed. 1.2 mi N of I-5 interchange (summit Drive/Deetz Road/Truck Village Drive) along N part of Truck Village Drive (E side of I-5). 1200 Comment
  JEPS74556  Mimulus lewisii W. J. Ferlatte 1966-8-17 386 Siskiyou Caribou Basin Trinity Alps 1981 Comment
  HSC22289  Mimulus lewisii J. O. Sawyer 1968-7-10 502 Siskiyou Above Sugar Lake 2012 Comment
  JEPS10483  Mimulus microphyllus W. L. Jepson 1937-7-30 18557 Siskiyou Poker Flat Siskiyou Mts. 1584 Comment
  JEPS82495  Mimulus moniliformis Gilbert Muth 1965-8-3 153 Siskiyou Marble Valley Marble Mt. Wilderness Area 1792 Comment
  SBBG30584  Mimulus moschatus D. Myrick 1968-6-26 2028 Siskiyou Coffee Crk; Trinity Alps 1463 Comment
  JEPS109691  Mimulus nanus Dean W. Taylor 2002-6-10 18131 Siskiyou Scott Mountain, between Grouse Creek and Little Carmen Creek at the junction of Forest Road 40N40 with xxNxx 1005 Comment
  JEPS87001  Mimulus nanus var. jepsonii David M. Thompson 1988-6-4 931 Siskiyou ca. 1.5 air mi se Deadhorse Summit (1.3 mi nw of Shasta Co. line along Hwy 89) 1300 Comment
  JEPS84018  Mimulus nanus var. nanus L. R. Heckard with J. Hickman et al. 1986-7-17 6502 Siskiyou e Condrey Mt.; Alex Hole 1950 Comment
  RSA165529  Mimulus nanus var. nanus Clare B. Hardham 1961-6-30 8030 Siskiyou Mud Springs. 1829 Comment
  RSA48209  Mimulus nanus var. nanus Roxana S. Ferris, Laura Lorraine 1948-6-12 11851 Siskiyou 1.5 miles below summit of Gazelle Mountain grade, east side. 1418 Comment
  HSC446  Mimulus tilingii William J. Ferlatte 1967-8-20 1056 Siskiyou Caribou Basin 2226 Comment
  CAS-BOT-BC388880  Minuartia douglasii A. A. Heller 1905-6-20 8084 Siskiyou About midway between Igerna and Weed Comment
  CAS-BOT-BC174699  Minuartia howellii R. C. Barneby 1954-5-16 11523 Siskiyou 7 mi. n.-e. of Fort Jones 1005 Comment
  CAS-BOT-BC481921  Minuartia nuttallii Arthur Menzies 1962-7-21 s.n. Siskiyou Mt. Eddy 2529 Comment
  UC135646  Minuartia nuttallii subsp. gregaria Dr. E. B. Copeland 1903-9-7 3870 Siskiyou Mt. Eddy 2133 Comment
  RSA215627  Minuartia nuttallii subsp. gregaria Gilbert Muth 1969-8-10 1352 Siskiyou Red Mountain Ridge. 2317 Comment
  SBBG122860  Minuartia nuttallii var. gregaria B. Ertter 1990-7-14 9308 Siskiyou streamlet near end of USFS Rd 41N53, ca. 1 mi N of Morgan Meadows, E side of Mt Eddy; 4 air mi W of Mt Shasta City 1676 Comment
  CAS-BOT-BC181113  Minuartia nuttallii var. gregaria Lillian Mott 1976-7-18 53 LM76 Siskiyou Along road to Lily Pad Lake west of Cook and Green Pass 1463 Comment
  CHSC95108  Minuartia stolonifera L. P. Janeway 2006-7-4 8778 Siskiyou Klamath Ranges. Scott Mountains; along a short spur loop on northwest side of Hwy 3 4.8 road km southeast of Gazelle-Callahan Road; overlooking East Fork Scott River. Rocky north-facing serpentine slope. 1259 Comment
  UC163732  Mirabilis greenei Geo. D. Butler 1909-5-16 774 Siskiyou near Yreka Comment
  HSC62312  Mitella breweri Al Hobart 1968-6-23 Siskiyou Youngs Valley 1524 Comment
  UC1198871  Mitella diversifolia Joseph P. Tracy 1935-8-2 14434 Siskiyou Young's Peak Salmon-New River divide (ne side) 1524 Comment
  HSC4887  Mitella pentandra J. O. Sawyer 1968-7-10 520 Siskiyou S side of Sugar Creek. 1616 Comment
  HSC61891  Mitella trifida Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  HSC55039  Moehringia macrophylla Marvin Butler 1971-7-6 39 Siskiyou Near El Capitan, close to Cave Junction 1524 Comment
  CDA24065  Moehringia macrophylla Don Shaw 1980-5-16 Siskiyou McNeil Creek near Forks of Salmon. 0 Comment
  UCD98356  Moehringia macrophylla Jeff Kennedy 1994-4-24 1 Siskiyou Four-acre private parcel, 1.1 air miles W of the Ctrl. Mt. Shasta exit from Interstate 5; 0.5 air miles W of Mt. Shasta State Fish Hatcher, S of W end of Melo Road (off of Old Stage Road); W of and adj. to Wagon Creek; E of ranch with large stock pond. 1042 Comment
  JEPS84202  Monardella L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6296 Siskiyou just s State line (Indian Creek Road from Takilma to Happy Camp) 1420 Comment
  HSC81683  Monardella glauca Thomas W. Nelson, Jane P. Nelson 1980-7-21 6161 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  RSA749250  Monardella glauca K. M. Meyer, A. Townesmith 2007-8-2 186 Siskiyou Klamath National Forest, 10.1 mi. on National Forest Rd. 70, off Hwy 97 toward Oregon. 1933 Comment
  SEINET10700593  Monardella glauca Karen M. Meyer, Andrew Townesmith 2007-8-2 Meyer 186 Siskiyou Klamath National Forest, 10.1 mi. on National Forest Rd. 70, off Hwy. 97 toward Oregon. 1933 Comment
  CHSC4557  Monardella odoratissima J. E. Bowlin 1967-7-18 73 Siskiyou Off roadside, ca. 3.4 mi w of Mount Shasta Ski Bowl. 2164 Comment
  CAS-BOT-BC222034  Monardella odoratissima subsp. glauca Peter H. Raven 1956-9-4 10379 Siskiyou Ridges s. of Mt. Eddy 2286 Comment
  CAS-BOT-BC222178  Monardella odoratissima subsp. pallida A. A. Heller 1915-8-26 12230 Siskiyou North side of Mt. Eddy 1981 Comment
  HSC69378  Monardella odoratissima subsp. pallida J. O. Sawyer, J. Cole 1980-7-19 3683 Siskiyou Near FS Rd. 45N05, center of section 1890 Comment
  UC1096813  Monardella odoratissima subsp. pallida H. K. Wagnon 1957-8-11 1702 Siskiyou Mt. Shasta ca. 1 mi W of Military Pass Road, along road to Brewer Creek. Comment
  RSA331947  Monardella odoratissima subsp. pallida Dave Kelly, Walter Wisura 1985-7-31 4088 Siskiyou Mount Shasta, end of Everitt Memorial Hwy Comment
  SEINET10498958  Monardella villosa subsp. subserrata Morris 1973-6-2 MORRIS 362 Siskiyou Jct of shasta and klamath rivers on hwy 263 Comment
  CAS-BOT-BC453478  Monotropa hypopitys Volney Rattan 1879-6-1 s.n. Siskiyou Klamath Comment
  CAS-BOT-BC445205  Montia parvifolia Ira L. Wiggins 1955-7-27 13524 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  UC1408941  Montia parvifolia Frederick W. Oettinger 1969-7-13 1004 Siskiyou n of Upper English Lake (High Lake Basins in vicinity of English Peak, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 1950 Comment
  RSA238298  Montia parvifolia Frederick W. Oettinger 1969-7-13 1004 Siskiyou Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1951 Comment
  UCD86716  Muhlenbergia filiformis R. Tofsrud 1950-7-1 s.n. Siskiyou E. side of Mt. Shasta. Comment
  RSA239107  Muhlenbergia montana Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1168 Siskiyou Near outlet of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  JEPS94253  Myosotis discolor Vernon H. Oswald and Lowell Ahart 1998-6-11 9211 Siskiyou 23 air mi ne of Weed (Old State Highway 0.5 mi w of Bray, 10 air mi e of Grass Lake located on Highway 97); Old State Highway 1414 Comment
  JEPS101568  Myosotis laxa Dean W. Taylor 1999-8-12 17321 Siskiyou headwaters of South Fork Hungry Creek, 5 miles Southwest from Hilt 1402 Comment
  CAS-BOT-BC516028  Narthecium californicum Elizabeth McClintock; Wayne Roderick 1967-7-28 s.n. Siskiyou At head of Gumboot Lake, SW of Mount Eddy 1828 Comment
  RSA601498  Navarretia capillaris L. C. Wheeler 1935-7-26 3699 Siskiyou Siskiyou mountains: Jaynes Canyon 1951 Comment
  HSC30633  Navarretia capillaris Frederick W. Oettinger, R. F. Thorne 1969-8-8 1306 Siskiyou Marble Mtn. Wilderness Area, near English Lake 1829 Comment
  UC164095  Navarretia tagetina Geo. D. Butler 1910-5-26 1406 Siskiyou Yreka Comment
  HSC22175  Nemophila parviflora var. austiniae J. O. Sawyer 1969-7-16 1150 Siskiyou W of Waterdog Lake 2073 Comment
  CAS-BOT-BC230566  Nemophila parviflora var. parviflora Roxana S. Ferris; Laura Lorraine 1948-6-12 11739 Siskiyou French Creek Logging Road W of Callahan 1219 Comment
  HSC93079  Nemophila pedunculata Jennifer Whipple 1976-7-2 1278 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  SEINET6174145  Nicotiana attenuata G. D. Butler 1910-7-1 1618 Siskiyou Dry field near Yreka. Comment
  CHSC93558  Nitrophila occidentalis Lowell Ahart; John Dittes 2005-6-9 12005 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  CAS-BOT-BC60585  Noccaea fendleri subsp. glauca Jean Langenheim 1957-5-19 4344 Siskiyou At intersection of Miner's Creek road and Tiger Creek road. Comment
  CAS-BOT-BC60575  Noccaea fendleri subsp. glauca A. A. Heller 1922-7-3 13677 Siskiyou Mount Eddy south of Wagon Creek. 2438 Comment
  HSC61504  Nothochelone nemorosa Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  SACT001618  Notholcus lanatus G. Kimber 1934-6-9 Siskiyou .15 mile above junction with Sacramento River. Comment
  HSC29330  Nuphar polysepala Frederick W. Oettinger 1968-8-12 488 Siskiyou Lily Pond, W of W cove of Hancock Lake 1936 Comment
  CAS-BOT-BC140350  Oemleria cerasiformis A. M. Vollmer; L. Beane 1951-6-2 88 Siskiyou Happy Camp, Klamath River Highway Comment
  POM259019  Oenothera elata subsp. hirsutissima W. Bridge Cooke 1940-7-12 15325 Siskiyou Along the Castle Lake Road near Mount Shasta City. 1067 Comment
  POM211388  Olsynium douglasii Louis C. Wheeler 1935-3-18 3377 Siskiyou Cottonwood Creek, Siskiyou Mtns. (Mt Diablo Mer.) 945 Comment
  HSC4912  Oreostemma alpigenum var. andersonii J. O. Sawyer 1968-7-23 564 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  UC1409452  Oreostemma alpigenum var. andersonii Frederick W. Oettinger 1968-8-1 339 Siskiyou south of Little Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area, English P 2042 Comment
  UC455562  Orobanche fasciculata I. J. Condit 1911-7-27 Siskiyou Castle Lake. Comment
  HSC45156  Orobanche uniflora J. O. Sawyer, E. Cope 1977-6-19 2950 Siskiyou Clear Creek Trail between Preston Creek and Trout Camp 915 Comment
  CHSC71577  Orthilia secunda Vernon H. Oswald; Lowell Ahart 1998-8-3 9431 Siskiyou Near the Pacific Crest Trail in the Scott Mtns., west of Kangaroo Lake. 1981 Comment
  HSC62314  Orthilia secunda Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  RSA0083197  Orthilia secunda William J. Ferlatte 1967-8-21 1072 Siskiyou Sawtooth Ridge between Caribou Basin and Little South Fork Lake. 2287 Comment
  RSA0083198  Orthilia secunda William J. Ferlatte 1966-8-3 269 Siskiyou Along the south fork of the Salmon River between the campground and Carter's. 1524 Comment
  CAS-BOT-BC266621  Orthocarpus cuspidatus Lillian Mott 1976-7-9 51 LM76 Siskiyou Road from Cook and Green Pass to Lily Pad Lake 1828 Comment
  HSC167  Orthocarpus cuspidatus subsp. copelandii William J. Ferlatte 1966-8-2 238 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  RSA211401  Orthocarpus cuspidatus subsp. copelandii William J. Ferlatte 1967-8-17 958 Siskiyou Yellow Rose Mine, Trinity Alps. 1982 Comment
  RSA237572  Orthocarpus cuspidatus subsp. copelandii Frederick W. Oettinger 1967-8-10 245 -a Siskiyou 1/8 mile southeast of Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  RSA407987  Orthocarpus cuspidatus subsp. copelandii Louis C. Wheeler 1934-7-3 2851 Siskiyou Head of Soda Crk, Sterling Mt, Siskiyou Mtns. 1768 Comment
  RSA52493  Orthocarpus cuspidatus subsp. cuspidatus Dorothy Parker 1948-7-11 s.n. Siskiyou Shovel Creek, near Beswick. 1012 Comment
  RSA749251  Orthocarpus cuspidatus subsp. cuspidatus K. M. Meyer, A. Townesmith 2007-8-2 187 Siskiyou Klamath National Forest, 13.3 m on Forest Service Rd. 70, off US Hwy. 97 toward Oregon. 1956 Comment
  HSC65503  Osmorhiza berteroi R. White 1977-7-21 128 Siskiyou Slope below outlet of Raspberry Lake. 1512 Comment
  HSC69323  Osmorhiza berteroi Maralyn A. Renner 1980-8-31 2666 Siskiyou Poker Flat at trailhead to Twin Valley 1524 Comment
  UC595105  Osmorhiza occidentalis David D. Keck 1938-8-6 4811 Siskiyou 4 mi s Oregon Line (on road from Waldo to Happy Camp, at Del Norte Co. line); Summit of Siskiyou Mts., Poker Flat 1555 Comment
  POM82904  Osmorhiza occidentalis Geo. D. Butler 1910-7-7 1668 Siskiyou Shackleford Creek 1220 Comment
  UC1299453  Packera cana Freed W. Hoffman 1950-7-13 3559 Siskiyou Clear Creek trail from Baldy Lookout Comment
  HSC74834  Panicum capillare var. capillare J. P. Smith, J. O. Sawyer 1978-7-3 10003 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  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
  JEPS9617  Paxistima myrsinites W. L. Jepson 1914-8-14 6158 Siskiyou Dunsmuir 1097 Comment
  RSA237257  Paxistima myrsinites Frederick W. Oettinger 1969-8-7 1281 Siskiyou Margin of English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  UCSB25456  Paxistima myrsinites McMinn, Howard 1931-6-27 Siskiyou Shasta City Comment
  JEPS124777 Image available Paxistima myrsinites Lynne C. Carter 1967-7-12 102 Siskiyou ca. 1/4 mile west of entrance to Fowler Campground. On rocky cliff above McCloud River. Comment
  SEINET5460350 Image available Paxistima myrsinites Ross C. Clark, Bob Harvey; Chris Harvey 23911 Siskiyou Understory under Calcedrus and Pinus ponderosa at Sacramento Springs City Park-. Comment
  CHSC1638  Pectiantia pentandra V. Holt 1943-8-13 Siskiyou Marble Mountains. 1828 Comment
  SJSU2595  Pectiantia pentandra H. L. Buckalew 1962-7-12 Siskiyou near Poker Flat c. 4 mi W of junction of Indian Cr & W Branch Indian Cr, Siskiyou Mts 1219 Comment
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Jan 11 2010
  RSA48235  Pectocarya penicillata Roxana S. Ferris, Laura Lorraine 1948-6-12 11785 Siskiyou Outskirts of Etna. Comment
  HSC688  Pedicularis contorta William J. Ferlatte 1967-8-20 1064 Siskiyou Caribou Basin 1982 Comment
  JEPS80561  Pedicularis contorta Gilbert Muth 1965-8-6 180 Siskiyou backside of Black Mountain; , Marble Mountain Wilderness Area 2072 Comment
  RSA211121  Pedicularis contorta William J. Ferlatte 1966-8-17 397 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  UCSB23732  Pedicularis densiflora Keefe, Joseph 1967-7-11 Siskiyou 2.3 miles north of Castle Lake, 10 miles southeast of town of Mt. Shasta 1219 Comment
  HSC91146  Pedicularis racemosa Jennifer Whipple 1976-7-23 1528 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  JEPS84022  Pedicularis racemosa L. R. Heckard with J. Hickman et al. 1986-7-17 6535 Siskiyou se of Condry Mountain (road end area and camp overlooking s end of Alex Hole); Alex Hole 1980 Comment
  RSA238829  Pedicularis racemosa Frederick W. Oettinger 1968-8-3 384 Siskiyou Edge of base camp meadows, near English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  POM301725  Pellaea brachyptera Marion Ownbey, D. H. Brown 1941-6-22 2424 Siskiyou West of Craggy Mountain, northwest of Yreka Comment
  UC618697  Pellaea brachyptera W. Bridge Cooke 1938-6-17 11036 Siskiyou Mt Shasta along Sisson Southern Trail Mt Shasta 1371 Comment
  UC812365  Pellaea breweri John Thomas Howell 1939-8-2 14874 Siskiyou Spirit Lake; Marble Mts Comment
  JEPS84174  Pellaea breweri L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6423 Siskiyou ca. 5 mi. n. town of Seiad Valley (cirque at head of Hell's Canyon, e. slope Kangaroo Mt.); Kangaroo Mt. 1828 Comment
  JEPS7204  Penstemon anguineus W. L. Jepson 1937-7-30 18537 Siskiyou near Poker Flat summit; Siskiyou Mts., nr Poker Flat summit 1584 Comment
  SBBG83416  Penstemon anguineus R. Gankin, H. Brewer 1965-8-10 604 Siskiyou summit of Indian Crk Rd, 3.5 mi S of state border Comment
  UC1012498  Penstemon anguineus Francis W. Pennell 1940-7-17 26175 Siskiyou w Etna (northeastern slope Salmon Mts.); , w of Etna 1981 Comment
  CAS-BOT-BC27115  Penstemon anguineus Volney Rattan 1879-6-1 s.n. Siskiyou Indian Creek Comment
  JEPS7202  Penstemon anguineus W. L. Jepson 1907-7-9 2860 Siskiyou s Preston Peak (near Cottage Grove, on Klamath River, Western Siskiyou Mts., western Siskiyou County); Klamath Range, western Siskiyou Mts., Klamath River Comment
  UC618803  Penstemon cinereus David Keck 1938-8-24 11582 Siskiyou Bolam Creek Mount Shasta, Bolam Creek (above the creek in forest of Yellow Pine) 2133 Comment
  CAS-BOT-BC265375  Penstemon davidsonii var. davidsonii Marion Ownbey; Fred G. Meyer 1940-7-4 2185 Siskiyou On ridge above head of Brewer Creek, E side of Mount Shasta Comment
  RSA11918  Penstemon deustus subsp. heterander Elmer I. Applegate 1932-6-13 7243 Siskiyou Captain Jack's Stronghold, Modoc Lava Beds Comment
  CHSC30326  Penstemon gracilentus M. S. Taylor 1980-8-19 3269 A Siskiyou On se side of 42N50, on Hemlock Ridge, ca. 7.5 mi s of Tennant. 1828 Comment
  JEPS11266  Penstemon gracilentus W. L. Jepson 1894-8-4 21430 Siskiyou half-way up Mt. Shasta between Sisson sta. and Horse Camp; half-way up Mt. Shasta btw Sisson sta. and Horse Camp Comment
  UC313695  Penstemon gracilentus David D. Keck 1927-8-17 306 Siskiyou Horse Camp s side of Mt. Shasta, Horse Camp (s side of Mt. Shasta, Timberline) 2468 Comment
  RSA519225  Penstemon gracilentus Karl Vincent, Charlotte A. Labbe 1987-8-12 4512 Siskiyou Cascade Range, Butte Mtn. Along Butte Mtn Rd, ca 3.6 miles W of jct Meiss Lake Rd, located 7.2 mi W of jct US 97 on S side of Macdoel. 1829 Comment
  JEPS11463  Penstemon heterodoxus var. shastensis W. L. Jepson 1940-7-3 20106 Siskiyou (5 mi se Bartle) (Large meadow.); Big Bear Flat 1219 Comment
  SBBG51817  Penstemon heterodoxus var. shastensis C. Bornstein 1996-6-29 Siskiyou Grass Lake Rest Stop 1531 Comment
  RSA60647  Penstemon humilis Dorothy Parker 1948-7-11 s.n. Siskiyou On Gazelle Mountain. 1280 Comment
  HSC21016  Penstemon laetus subsp. sagittatus R. C. Wunner 1965-7-13 389 Siskiyou 0.2 mi. on Dragon Head Rd. 1372 Comment
  CHSC71332  Penstemon laetus var. sagittatus Vernon H. Oswald; Lowell Ahart 1998-6-11 9191 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
  CHSC88779  Penstemon laetus var. sagittatus Jenny Marr 1993-7-1 196 Siskiyou Steamboat Mtn. Shasta Valley Wildlife Area, +/- 20 air miles S of Oregon border and 8 miles E of Yreka. Meadow. 701 Comment
  SEINET11262164  Penstemon laetus var. sagittatus Karl A. Vincent, Charlotte A. Labbe 1987-6-28 4443 Siskiyou Cascade Range, Mt Shasta. On lava flow between Mt Shasta & Whaleback, along Andesite - Military Pass Rd ca 1 mi SE of jct US 97, ca 14.4 mi NE of jct US 97 & I-5 Bus. Loop in Weed.; 0 1433 Comment
  UC163818  Penstemon laetus var. sagittatus Geo. D. Butler 1910-5-11 1338 Siskiyou Shasta Valley Comment
  UC585180  Penstemon laetus var. sagittatus E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1953 Siskiyou about 2 mi s Sheep Rock (n slope of Mt. Shasta, on highway from Bray to Weed); n slope Mt. Shasta, s of Sheep Rock 1249 Comment
  UC725620  Penstemon laetus var. sagittatus A. A. Heller 1938-7-12 15257 Siskiyou sixteen mi ne Weed (near the base of Deer Mt.); near base Deer Mt., ne of Weed Comment
  RSA15583  Penstemon laetus var. sagittatus Carl B. Wolf 1927-8-27 1145 Siskiyou Klamath River, 10 miles above mouth of Salmon Comment
  UC774517  Penstemon neotericus Carl B. Wolf 1941-7-26 11078 Siskiyou on U.S. Highway #97 at junction with rd to Montague 12 mi ne Weed; sw end Little Shasta Valley, ne of Weed 914 Comment
  RSA211463  Penstemon newberryi William J. Ferlatte 1966-7-7 194 Siskiyou Caribou Basin. Trinity Alps. 1982 Comment
  UCD124310  Penstemon newberryi A. H. Murphy 1959-7-22 59 P Siskiyou Shasta National Forest, Porcupine Lake. 2286 Comment
  JEPS101482  Penstemon newberryi var. berryi Dean W. Taylor 1972-7-3 1611 Siskiyou Salmon Mountains, near Little Duck Lake 1981 Comment
  UC1238907  Penstemon newberryi var. berryi Freed W. Hoffman 1950-7-11 3493 Siskiyou Cedar Camp Road 25.9 mi N of Klamath Hwy, about on Del Norte Co. line North Coast Ranges Comment
  JEPS81884  Penstemon newberryi var. newberryi Roger Raiche 1982-7-16 20616 Siskiyou on road to Mt. Eddy from Stewarts Springs; on road to Mt. Eddy from Stewarts Springs 1981 Comment
  NY629972  Penstemon parvulus A. R. Kruckeberg 1972-6-10 6211 Siskiyou Between Cook and Green Pass and Red Butte Comment
  NY629980  Penstemon parvulus R. C. F. Bacigalupi 1957-6-26 5964 Siskiyou Canyon of the South Fork of the Sacramento River, at its source in the region immediately south of Mt. Eddy, along very poor mountain road to Gumboot Lake 1432.6 Comment
  HSC69505  Penstemon procerus var. brachyanthus John Palmer 1980-7-24 655 Siskiyou Dillon Divide 1707 Comment
  SEINET5323604 Image available Penstemon procerus var. brachyanthus G. Butler 1910-7-10 1739 Siskiyou Shacksleford Creek, upper Campbell Lke 1372 Comment
  HSC82000  Penstemon roezlii Thomas W. Nelson, Jane Nelson 1979-6-16 4853 Siskiyou Along Hwy. 3, 3.1 mi. N of Scott Mtn. Summit 1280 Comment
  SBBG28893  Penstemon roezlii G. D. Butler 1910-6-9 1579 Siskiyou foothills of Goosenest Mtns 1386 Comment
  UC163964  Penstemon roezlii Geo. D. Butler 1910-6-9 1579 Siskiyou foothills of the Goosenest Mountains 1386 Comment
  JEPS82505  Penstemon rupicola Todd Keeler-Wolf 1983-8-14 728 Siskiyou 1/4 mi S of Terrace lake 2087 Comment
  JEPS11387  Penstemon speciosus Geo. D. Butler 1908-6-25 430 Siskiyou near Yreka (Butler's Ranch); near Yreka, Butler's Ranch 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
  UC1303025  Penstemon speciosus A. A. Heller 1928-6-9 14605 Siskiyou near Yreka; near Yreka Comment
  UC887342  Penstemon speciosus A. A. Heller 1916-6-23 12424 Siskiyou near Black Butte (n of Sisson); near Black Butte 1127 Comment
  RSA237652  Perideridia gairdneri subsp. gairdneri Frederick W. Oettinger, R. Thorne 1969-8-8 1304 Siskiyou In boggy meadow below Sundew Bog upper bog holes just west of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
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Jun 12 2012
  UC1390007  Perideridia leptocarpa T. I. Chuang, I. Fukuda, and A. Weston 1963-7-6 5881 Siskiyou 3 mi w Cecilville Comment
  HSC26898  Perideridia parishii subsp. latifolia J. P. Smith, J. O. Sawyer 1971-9-17 4780 Siskiyou Little Duck Lake 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-BC423352  Peritoma platycarpa A. A. Heller 1927-8-2 14440 Siskiyou North end of Shasta Valley, near the Klamath River Comment
  HSC74832  Persicaria amphibia J. P. Smith, J. O. Sawyer 1978-7-3 10001 Siskiyou Klamath National Forest, Williams Point along the Klamath River, S of Hwy. 96 Comment
  CHSC106098  Persicaria hydropiperoides Lowell Ahart; John Dittes 2010-7-30 16933 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. 716 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
  POM65428  Phacelia corymbosa E. B. Copeland 1903-8-18 3831 Siskiyou Mt. Eddy. Comment
  CHSC717  Phacelia greenei D. Parker 1962-4-28 Siskiyou Yellow Bill Hill in Scott Valley, near Etna. 914 Comment
  JEPS101159  Phacelia greenei Dean W. Taylor 1996-6-18 15704 Siskiyou Scott Mountains; bordering Shasta Valley, hillslopes about 4 miles south of Gazelle; Shasta-Trinity National Forests 1524 Comment
  RSA47790  Phacelia greenei Roxana S. Ferris, Laura Lorraine 1948-6-12 11718 Siskiyou Schoolhouse Hill, Plowman s Valley [Noyes Valley], East Fork of Scott River Comment
  UC24397  Phacelia hastata Harley P. Chandler June 1901 1655 Siskiyou Marble Mountain North Coast Ranges 2438 Comment
  UC1228342  Phacelia hastata L. R. Heckard 1956-8-7 830 Siskiyou near Dear Mt. Lodge (w flank of mt.); Deer Mt. 1432 Comment
  RSA105459  Phacelia hastata subsp. hastata G. D. Barbe 1955-7-1 70 Siskiyou 0.6 mile east of Etna in a rocky field on the south side of the road; Klamath Mountains. 854 Comment
  SEINET7073534  Phacelia heterophylla A. G. Vestal 1963-6-1 s.n. Siskiyou Road to Dwinnell Reservoir [Lake Shastina]. UTM Zone 10, 552318mN, 4598883mN. Coordinate datum: NAD27. Comment
  SEINET12280193  Phacelia heterophylla H. P. Chandler 1901-1 1655 Siskiyou Marble Mountain 2438 Comment
  UC673229  Phacelia heterophylla subsp. virgata Lincoln Constance and Reed C. Rollins 1942-5-14 2927 Siskiyou 4 mi n Yreka; Shasta River 762 Comment
  SBBG65340  Phacelia imbricata Mrs. H. P. Bracelin 1931-6-20 430 Siskiyou ca. 2 mi NW of Mt Shasta City 1051 Comment
  JEPS87068  Phacelia leonis Dean W. Taylor 1988-7-9 9935 Siskiyou Gumboot Lake North Coast Ranges, Seven Lakes Basin 7 1/2' quad, South For (headwaters of river) 1950 Comment
  UC1187639  Phacelia leonis Lincoln Constance, Rimo Bacigalupi, and Lawrence R. Heckard 1960-7-20 3691 Siskiyou ca 5 mi sw Poker Flat; Siskiyou Mountains, Twin Valley 1554 Comment
  UC144629  Phacelia linearis A. A. Heller 1905-6-22 8089 Siskiyou Igerna Comment
  HSC2372  Phacelia mutabilis William J. Ferlatte 1966-6-23 146 Siskiyou Big Flat, near public camp 1524 Comment
  HSC86535  Phacelia mutabilis D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta 1829 Comment
  RSA120902  Phacelia pringlei Milo S. Baker 1957-6-16 13152 Siskiyou Trip to Scott Mt. after turn off near Callahan. Comment
  UC163994  Phacelia procera Geo. D. Butler 1908-8-9 14 Siskiyou Marble Valley Comment
  HSC27638  Philadelphus californicus Carl W. Mize 1972-6-10 50 Siskiyou Along Steinacher Creek 0.5 mi. from Wooley Creek 290 Comment
  CHSC91624  Philadelphus lewisii G. F. Hrusa 2001-6-6 15855 Siskiyou Siskiyou Mountains. Along Hwy 96 at Scott R. Bridge. Cuts above river. UTM: 10T, 4625883 N, 0496656 E. 426 Comment
  UC69386  Philadelphus lewisii T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  CAS-BOT-BC250785  Phleum alpinum Gilbert Muth 1966-8-1 488 Siskiyou Marble Valley Horse Pasture, Marble Mts. 1792 Comment
  UCD37075  Phleum alpinum Beecher Crampton 1956-8-21 3806 Siskiyou Siskiyou County, 15 miles southwest of city of Mount Shasta, slope above Gumboot Lake, headwater of south fork of Sacramento River. 1920 Comment
  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
  RSA105397  Phleum pratense G. D. Barbe 1955-7-5 109 Siskiyou At Greenview city limit on Highway to Fort Jones; Klamath Mountains 884 Comment
  UC23915  Phlox austromontana Harley P. Chandler Jun 1901 1591 Siskiyou Marble Mountain North Coast Ranges 2133 Comment
  CAS-BOT-BC294731  Phlox diffusa James Vale 1979-6-4 s.n. Siskiyou Sierraville Comment
  UC164097  Phlox hirsuta Geo. D. Butler 1910-4-10 1165 Siskiyou near Yreka Comment
  POM165888  Phoradendron densum E. B. Copeland 1903-7-7 3542 Siskiyou Hornbrook. Comment
  UC1039907  Phoradendron pauciflorum Geo. M. Pendleton 1917-1 Siskiyou Sisson Comment
  LA41255  Phyllodoce empetriformis Wm. Bridge Cooke; 1938-8-18 11496 Siskiyou Mount Shasta, around the springs above Horse Camp along the summit trail 2499 Comment
  SD219029  Phyllodoce empetriformis R. F. Thorne, Frederick W. Oettinger 1969-8-4 63364 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak. 2097 Comment
  SEINET7270862  Phyllodoce empetriformis G. D. Butler 1910-7-8 1686 Siskiyou Shackleford Creek 1829 Comment
  CAS-BOT-BC140600  Physocarpus capitatus Carl B. Wolf 1927-8-26 1072 Siskiyou On the Klamath River, near Hamburg Comment
  CAS-BOT-BC73429  Picea breweriana T. H. Harris 1951-5-30 s.n. Siskiyou Tanner Butte Road, near Happy Camp. 1828 Comment
  CAS-BOT-BC73430  Picea breweriana J. G. Lemmon 1889-10-18 s.n. Siskiyou Siskiyou Mts., near Waldo. Comment
  UC1585429  Picea breweriana R. Raiche, K. Zadnik, and H. Forbes 1989-10-3 UCBG 52 Siskiyou n of Seiad Valley (at Cook and Green Pass along trail toward Copper Butte); Cook and Green Pass 1530 Comment
  UC665706  Picea breweriana L. E. Berriman January, 1941 Siskiyou w Callahan (n slopes of peak); North Coast Ranges, Russian Peak 1828 Comment
  CAS-BOT-BC73398  Pinus albicaulis W. R. Dudley 1899-8-9 s.n. Siskiyou Summit of Black Butte. 1905 Comment
  UC1094328  Pinus albicaulis Peter H. Raven 1956-9-4 10416 Siskiyou Mount Eddy 2651 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
  CAS-BOT-BC73310  Pinus balfouriana Alice Eastwood 1912-8-30 s.n. Siskiyou Mount Eddy Comment
  UC1272962  Pinus balfouriana J. M. Tucker and L. K. Mann 1963-8-18 3770 Siskiyou on saddle between Marble Mountain and southwest ridge of Black Mountain; Marble Mountain Wilderness Area 2103 Comment
  UC401404  Pinus contorta subsp. murrayana Geo. D. Butler 1910-5-10 1333 Siskiyou Goosenest Mountain Goosenest Mountain (swampy woods) 1676 Comment
  RSA237337  Pinus jeffreyi Frederick W. Oettinger 1969-8-21 1539 Siskiyou 0.1 mile north of English Lake outlets. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  CAS-BOT-BC73094  Pinus lambertiana W. R. Dudley 1899-8-9 s.n. Siskiyou S. slope Black Butte, W. of Mt. Shasta. 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
  UC375221  Piperia leptopetala Geo. D. Butler 1910-6-17 1604 Siskiyou near Yreka Comment
  JEPS84239  Piperia unalascensis L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6354 Siskiyou ca 7 mi nne Seiad Valley (about 0.5 mi se of Red Butte, sw of Cook and Green Pass) 1730 Comment
  CAS-BOT-BC458145  Pityopus californicus Gilbert Muth 1966-7-29 465 Siskiyou Marble Mts.,: Marble Valley, by waterfall 1828 Comment
  CDA40664  Plagiobothrys tenellus G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2630 Siskiyou 16 km south of Fort Jones on Scott Valley East Side Road. Comment
  SBBG68796  Plantago A. A. Heller 1927-8-2 14442 Siskiyou near Gazelle, Shasta Valley Comment
  JEPS6469  Plantago eriopoda Rimo Bacigalupi and G. T. Robbins 1954-8-13 4802 Siskiyou 1.9 mi s Gazelle; Shasta Valley 853 Comment
  RSA240062  Plantago major Frederick W. Oettinger 1969-8-12 1341 Siskiyou Near Abbott's Lower Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 945 Comment
  HSC21995  Platanthera sparsiflora J. O. Sawyer 1969-8-4 1892 Siskiyou Above S Sugar Lake 2043 Comment
  HSC29094  Platanthera sparsiflora Frederick W. Oettinger 1969-7-29 1101 Siskiyou Marble Mountain Wilderness Area, High Lakes Basins, outlet of Uncle's Lake 1829 Comment
  HSC30213  Plectritis congesta subsp. brachystemon William J. Ferlatte 1968-6-8 1138 Siskiyou Big Flat, wooded area near public camp. 1524 Comment
  UC416765  Plectritis macrocera W. T. Mooney April 1903 Siskiyou Yreka Comment
  UC796534  Plectritis macrocera Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11827 Siskiyou 1 mi below summit of Gazelle Mountain (Gazelle-Callahan Road); Gazelle-Callahan Road 1219 Comment
  SBBG26969  Plectritis macrocera L. C. Wheeler 1935-6-1 3537 Siskiyou Yreka Crk, Siskiyou Mtns 853 Comment
  POM128299  Plectritis macrocera subsp. grayi A. M. Alexander, Louise Kellogg 1911-6-13 124 Siskiyou 6 miles northwest Callahan. Comment
  UCD92192  Poa AHM 1955-7-27 55 E Siskiyou Klamath National Forest. Marble Mountains. Pierce's Draw Meadow. 1676 Comment
  RSA239045  Poa annua Frederick W. Oettinger 1969-8-24 1529 Siskiyou English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  UC1025004  Poa bolanderi Leo Whitney 1935-7-15 3467 Siskiyou 2 mi se Medicine Lake (near Bullseye Lake) Comment
  CAS-BOT-BC255001  Poa bulbosa L. E. Smith 1915-5-1 s.n. Siskiyou Yreka Comment
  JEPS109712  Poa cusickii subsp. epilis Dean W. Taylor 2002-7-20 18265 Siskiyou The Eddys, Pacific Crest Trail ca. 0.5 mile North of Forest Road 17 2103 Comment
  RSA239032  Poa nervosa Frederick W. Oettinger 1969-9-4 1666 Siskiyou south side of Tobacco Lake; Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  CAS-BOT-BC256014  Poa pratensis Gilbert Muth 1966-7-19 428 Siskiyou Marble Gap Trail, along 1st bluff, Marble Mts. 1828 Comment
  HSC30579  Poa pratensis Frederick W. Oettinger 1969-8-14 1374 Siskiyou Marble Mtn. Wilderness Area, English Lake. 1936 Comment
  UCD91980  Poa pratensis H. S. Yates 1936-6-20 5800 Siskiyou Siskiyou Summit. 1371 Comment
  HSC643  Poa pringlei William J. Ferlatte 1967-7-6 610 Siskiyou Dorleska summit. 2134 Comment
  JEPS25572  Poa pringlei Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7197 Siskiyou near head of ski lift above Mt Shasta Ski Bowl Lodge; Mt Shasta 2834 Comment
  RSA233672  Poa pringlei R. F. Thorne, Frederick W. Oettinger 1969-8-10 38976 Siskiyou Mt. Shasta National Forest: S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  RSA238331  Poa pringlei Frederick W. Oettinger, Robert F. Thorne 1969-8-5 1218 Siskiyou Crapo View Gap above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CAS-BOT-BC237708  Poa secunda Elmer I. Applegate 1935-6-8 9424 Siskiyou Bearpaw Cave, Lava Beds National Monument Comment
  SEINET10522722  Poa secunda Billy Joe Cox, David B. Dunn 1971-6-9 Cox 2833 Siskiyou 3 mi N of Weed, on US Hwy 97; S-facing 20.00.00 slope; roadside; in Pinus ponderosa, P. jeffreyi, and Artemisia tridentata, and Purshia. 1128 Comment
  CAS-BOT-BC243219  Poa secunda subsp. secunda A. A. Heller 1915-6-10 11956 Siskiyou Little Summit in the Sierra Nevada 1432 Comment
  HSC11  Poa secunda subsp. secunda William J. Ferlatte 1966-6-22 114 Siskiyou Josephine Lake Basin 1677 Comment
  HSC69703  Poa secunda subsp. secunda Maralyn A. Renner 1980-6-26 1263 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  UCD90494  Poa secunda subsp. secunda A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3433 Siskiyou 4 miles W of Hamburg, mouth of Kuntz Creek. Comment
  SEINET7864991  Poa secunda var. secunda L. C. Wheeler 1935-5-4 3464 Siskiyou Greenhorn Creek, Siskiyou Mountains 853 Comment
  CAS-BOT-BC244324  Podagrostis humilis W. B. C. 1938-9-17 11695 Siskiyou Mount Shasta. Water Supply Spring, Horse Camp, Hudsonian Comment
  CAS-BOT-BC232899  Polemonium carneum Geo. D. Butler 1909-4-28 737 Siskiyou McAdams Creek Comment
  CAS-BOT-BC6419  Polemonium pulcherrimum Edwin Bingham Copeland 1903-7-16 s.n. Siskiyou Mt. Shasta 3169 Comment
  POM365429  Polemonium pulcherrimum J. P. Smith, J. O. Sawyer 1972-6-30 5643 Siskiyou Ridge west of Little Duck Lake 2378 Comment
  HSC41813  Polemonium pulcherrimum var. shastense Robert Wharton 1977-8-20 Siskiyou Along E slope of Mt. Shasta at Wintun Glacier along ridge between Ash & Brewer Creeks 3354 Comment
  CAS-BOT-BC6420  Polemonium shastense Edwin Bingham Copeland 1903-7-16 s.n. Siskiyou Mt. Shasta 3169 Comment
  HSC67532  Polygala cornuta J. P. Smith, Steve Selva 1970-6-14 3858 Siskiyou Comment
  CAS-BOT-BC170339  Polygala cornuta var. cornuta Doris K. Kildale 1930-6-1 9698 Siskiyou Salmon River between Somes Bar and Forks of Salmon Comment
  JEPS95388  Polygala cornuta var. cornuta Vernon H. Oswald and L. Ahart 1994-8-1 6417 Siskiyou T39N R5W Sec. 10, 4400 ft, Yellow Pine Forest. Forest Rd. 26 paralleling the South Fork of the Sacramento River, 1.5 mi E of Forest Rd. 40N43, 7.8 mi SW of the dam at Lake Siskiyou 1341 Comment
  UCD99839  Polygonum aviculare subsp. neglectum A. A. Heller 1915-8-24 12207 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1188 Comment
  CAS-BOT-BC414394  Polygonum californicum Louis C. Wheeler 1934-6-21 2747 Siskiyou West Fork Cottonwood Creek, Siskiyou Mts. 1005 Comment
  UC922356  Polygonum davisiae Annie M. Alexander and Louise Kellogg 1949-7-20 5817 Siskiyou hill n Paradise Lake; Marble Mountains 1920 Comment
  CAS-BOT-BC414605  Polygonum douglasii Annetta Carter 1934-8-15 714 Siskiyou Summit of Happy Camp to Waldo (Oregon) road, Indian Creek Watershed, Klamath National Forest 1615 Comment
  HSC708  Polygonum douglasii William J. Ferlatte 1967-8-19 1036 Siskiyou South Fork of Salmon River, between campground and Carter's. 1524 Comment
  RSA759844  Polygonum douglasii subsp. austiniae Robert F. Thorne 1969-8-2 63401 Siskiyou Klamath National Forest, Salmon Mountains: Marble Mtn Wilderness, along trail to English Peak. 1159 Comment
  UC1509617  Polygonum douglasii subsp. spergulariiforme L. and P. Ahart 1983-9-13 4411 Siskiyou near Hwy 96 (near the Klamath River, ca 5 mi w of Interstate 5) 1000 Comment
  UC1540158  Polygonum douglasii subsp. spergulariiforme Dean Wm. Taylor Glenn L. Clifton, R. Doug Stone 1987-8-6 9241 Siskiyou Porcupine Lake; small vernal depression in indurate lava flow 1304 Comment
  CAS-BOT-BC418597  Polygonum minimum Geo. D. Butler 1910-7-13 1776 Siskiyou Shackleford Creek 1219 Comment
  UC618598  Polygonum minimum W. Bridge Cooke 1938-9-8 11658 Siskiyou Squaw Creek Meadows 2590 Comment
  CAS-BOT-BC419872  Polygonum polygaloides subsp. confertiflorum A. A. Heller 1925-7-25 13901 Siskiyou Along the Pacific highway near Edgewood. Comment
  CAS-BOT-BC420952  Polygonum sawatchense subsp. sawatchense Marion Ownbey; S. J. Preece, Jr. 1952-6-25 s.n. Siskiyou Ridge road to Deadwood Lookout, mountains west of Yreka Comment
  CAS-BOT-BC109281  Polygonum shastense A. A. Heller 1939-7-27 15433 Siskiyou Mount Shasta. Border of Panther Meadow, upper edge of the Canadian Life Zone. 2438 Comment
  LA51270  Polygonum shastense William Bridge Cooke; 1939-8-8 13839 Siskiyou Mount Shasta, vicinity of Horse Camp Comment
  CAS-BOT-BC421065  Polygonum spergulariiforme A. A. Heller 1914-8-28 11725 Siskiyou East side of Mt. Eddy 1371 Comment
  POM104534  Polygonum spergulariiforme Geo. D. Butler 189 Siskiyou Dry hills near Yreka. Comment
  POM2370  Polygonum spergulariiforme Geo. D. Butler 1910-7-31 1803 Siskiyou Near Yreka Comment
  SBBG29117  Polygonum spergulariiforme L. C. Wheeler 1934-9-26 3303 Siskiyou Siskiyou Mtns; R8W, T$&N, S27 1005 Comment
  UCD91021  Polypogon interruptus Chandler Jensen 1957-4-29 s.n. Siskiyou Redding Airport, Redding. Comment
  HSC69191  Polystichum imbricans Maralyn A. Renner 1980-9-1 2698 Siskiyou S side of Devil's Punchbowl 1829 Comment
  CAS-BOT-BC76728  Polystichum imbricans subsp. imbricans J. H. Thomas 1949-6-16 953 A Siskiyou Klamath National Forest - 1/4 mile north of Beaver Creek Public Camp along Beaver Creek; 5 miles north of junction Comment
  CAS-BOT-BC76736  Polystichum imbricans subsp. imbricans Edward Lee 1934-8-14 1115 Siskiyou Little Grayback, Siskiyou-Del Norte county line. 1798 Comment
  CAS-BOT-BC76732  Polystichum imbricans subsp. imbricans J. H. Thomas 1954-5-14 4176 Siskiyou Salmon Mountains, Klamath National Forest - near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, 1219 Comment
  CAS-BOT-BC72395  Polystichum lemmonii W. R. Dudley 1899-8-26 s.n. Siskiyou In the Foxtail Pine Woods, Sacramento River Comment
  HSC90061  Polystichum lemmonii R. W. Becking 1985-8-28 Siskiyou Scott Mtn. Rd. Callahan, Rockfence Lake, E of Kangaroo Lake, above cabin 1829 Comment
  POM212871  Polystichum lemmonii L. C. Wheeler 1934-8-14 11415 Siskiyou North side White Mt. About rocks, dry north slope. 1768 Comment
  RSA259549  Polystichum lemmonii J. P. Smith, J. O. Sawyer 1973-8-14 7308 Siskiyou On trail from Campbell Lake to Cliff Lake. 1828 Comment
  UCSB17940  Polystichum lemmonii Hardham, Clare 1961-7-3 Siskiyou S of Calahan, Scott Mountains. Comment
  CAS-BOT-BC72399  Polystichum lonchitis Louis C. Wheeler 1934-8-6 3058 Siskiyou Rock Gulch off Jaynes Canyon, Siskiyou Mts. 1828 Comment
  HSC1147  Polystichum lonchitis Dorothy Parker 1949-7-10 336 Siskiyou Above Paradise Lake, Salmon Mtn. 1982 Comment
  HSC19182  Polystichum lonchitis J. O. Sawyer 1968-7-2 352 Siskiyou Upper Drainage of Joe Creek 1677 Comment
  RSA693279  Polystichum lonchitis M. B. Dunkle 1945-8-7 9332 Siskiyou King's Casle. Marble Mtns, Klamath National Forest. Comment
  HSC19184  Polystichum munitum J. O. Sawyer 1968-7-2 367 Siskiyou Upper drainage of Joe Creek 1677 Comment
  SEINET10929408  Polystichum munitum Melvin L. Conrad, Katherine L. Morris; Patricia L. Kenney 1973-6-3 Conrad 7017 Siskiyou Matthew's Creek Campground on S fork of Salmon River. 549 Comment
  JEPS80503  Populus trichocarpa Gilbert Muth 1966-7-19 421 Siskiyou Marble Gap Trail; Marble Mt. Wilderness Area, Marble Gap Trail 1828 Comment
  UC1099856  Potamogeton gramineus Calvin McMillan, Malcolm A. Nobs 1949-6-17 801 Siskiyou Grass Lake, Highway 97 Grass Lake Comment
  HSC100794  Potamogeton pusillus var. tenuissimus Lowell Ahart, John Dittes 2010-7-30 16963 Siskiyou In the Shasta river, ~30 yd. NW of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 (air) mi. SW of Big Springs Lake, 4.6 (air) mi. NW of Dwinnel Dam, and 5.7 (air) mi. SE of Grenada. 717 Comment
  CAS-BOT-BC143257  Potentilla flabellifolia W. R. Dudley 1899-8-24 s.n. Siskiyou Craggy Peak Comment
  CAS-BOT-BC143263  Potentilla flabellifolia John Thomas Howell 1939-8-9 15230 Siskiyou Ridge south of Marble Valley, Marble Mts. Comment
  HSC96434  Potentilla flabellifolia Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-27 481 Siskiyou Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UC375272  Potentilla flabellifolia Geo. D. Butler 1908-8-8 357 Siskiyou Marble Valley Comment
  RSA211468  Potentilla flabellifolia William J. Ferlatte 1966-8-17 390 Siskiyou Caribou Basin; Trinity Alps. 1982 Comment
  UCR52571  Potentilla glandulosa 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
  RSA507455  Potentilla glandulosa S. Morgan 1987-7-28 s.n. Siskiyou McGinnis Springs, 5 miles NW of McCloud, Shasta- Trinity National Forest, S of Mt. Shasta. 1768 Comment
  RSA134220  Potentilla glandulosa var. nevadensis Peter H. Raven 1956-9-4 10401 Siskiyou S side of Mt. Eddy 2561 Comment
  HSC62286  Potentilla gracilis Al Hobart 1967-8-8 Siskiyou Youngs Valley 1524 Comment
  CAS-BOT-BC540551  Potentilla gracilis var. fastigiata Geo. D. Butler 1909-6-13 923 Siskiyou Meadow near Oro Fino Comment
  HSC29472  Potentilla gracilis var. fastigiata Frederick W. Oettinger 1969-7-31 1118 Siskiyou High Lake Basin in the vicinity of English Peak, Marble Mountain Wilderness Area: midway between English Lake and drift fence 1829 Comment
  RSA85694  Potentilla gracilis var. fastigiata E. E. Stanford 1930-8-14 2079 Siskiyou Below summit of Sonora Pass. 2896 Comment
  CHSC106097  Potentilla millefolia Lowell Ahart; John Dittes 2010-7-30 16938 Siskiyou West of the pipe crossing the Shasta River, about 10 yards south 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
  UCR142893  Potentilla millefolia L. C. Wheeler 1935-6-23 3590 Siskiyou Shasta River, 2 mi NW Montague 762 Comment
  SEINET6637083  Potentilla millefolia L. C. Wheeler 1935-6-23 3590 Siskiyou Shasta River 2mi NW Montague 762 Comment
  SEINET516294  Potentilla newberryi Vernon H. Oswald 1998-6-27 9241 Siskiyou Dry Lake on the S side of Tennant Rd., ca 9 air mi E of Grass Lake, ca. 22 air mi NE of Wee. 1402 Comment
  SEINET3157045  Potentilla wrangelliana G. D. Butler 1910-5-30 1431 Siskiyou Humbug Creek Comment
  CAS-BOT-BC516387  Prosartes hookeri Doris K. Kildale 1929-4-27 7572 Siskiyou Cecilville, South Fork Salmon River Comment
  HSC19565  Prosartes hookeri J. O. Sawyer 1968-6-25 337 Siskiyou 1646 Comment
  UCD125289  Prunella vulgaris A. H. Murphy 1955-7-27 55 B Siskiyou Klamath National Forest. Marble Mountains. Cold Springs Meadow. 1676 Comment
  CHSC774  Prunella vulgaris var. lanceolata 1936-6-29 Siskiyou Shasta City. 1097 Comment
  UC1034608  Prunella vulgaris var. lanceolata Douglas Barbe 1955-6-29 40 Siskiyou on the s bank of Scott River 1.8 mi e Callahan; Klamath Mountains, bank of Scott River 975 Comment
  RSA68936  Prunella vulgaris var. lanceolata A. E. Culbertson 1943-7-17 22 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 NE 1524 Comment
  CAS-BOT-BC158208  Prunus emarginata John Thomas Howell 1937-7-25 13449 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC158222  Prunus emarginata Annetta Carter 1939-8-19 1455 Siskiyou 3.5 miles north of Dunsmuir 914 Comment
  CAS-BOT-BC158234  Prunus emarginata L. B. Kildale 1930-6-1 9731 Siskiyou Salmon River between Oak Bottom and Somes Bar Comment
  CAS-BOT-BC158235  Prunus emarginata L. B. Kildale 1930-6-1 9790 Siskiyou Black Bear trail to Sawyers Bar Comment
  RSA453223  Prunus emarginata Bonnie C. Templeton 1957-6-22 s.n. Siskiyou Along the Scott River, north of Callahan. Comment
  RSA63068  Prunus emarginata L. S. Rose 1950-5-7 50108 Siskiyou Shasta Springs 915 Comment
  UCSB62934  Prunus emarginata Sarr, Dan 1995-7-31 Siskiyou Upper falls of the McCloud River 950 Comment
  CAS-BOT-BC151234  Prunus virginiana var. demissa L. E. Smith 1912-7-1 s.n. Siskiyou Weed Comment
  POM88405  Prunus virginiana var. demissa Geo. D. Butler 1910-7-24 1795 Siskiyou [Greka or Silka]? Creek Comment
  UC1128442  Prunus virginiana var. demissa M. H. Mitchell 1936-5-12 Siskiyou n side of Eaglenest, Modoc Lava Beds National Monument Eaglenest; Modoc Lava Beds National Monument, Eaglenest 1584 Comment
  UC154510  Prunus virginiana var. demissa Harley P. Chandler June, 1901 1631 Siskiyou Klamath River to Marble Mountain; North Coast Ranges 2133 Comment
  UC52251  Prunus virginiana var. demissa W. T. Mooney May 1903 Siskiyou Yreka Comment
  POM211404  Pseudoroegneria spicata subsp. spicata L. C. Wheeler 1934-6-29 2831 Siskiyou Soda Creek, Sterling Mt., Siskiyou Mts. 1067 Comment
  HSC75250  Pseudostellaria jamesiana J. P. Smith, Steve Selva 1970-7-27 4512 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  UC903496  Pseudostellaria jamesiana Dorothy Parker 1948-6-14 Siskiyou Plowman's Valley Rail Creek; , Rail Creek 1203 Comment
  RSA68884  Pseudostellaria jamesiana A. E. Culbertson 1943-7-2 72 Siskiyou Along Castle Lake road from town of Shasta, 6600ft eastern spur of Trinity Mts, 10 air miles from headwaters of Sacramento River to w and 12 miles SW of Mt Shasta 1219 Comment
  HSC27953  Pseudotsuga menziesii var. menziesii Carl W. Mize 1972-9-23 115 Siskiyou 0.5 mi from end of Steinacher Creek Rd. 884 Comment
  LA6346  Pseudotsuga menziesii var. menziesii Louis C. Wheeler; 1934-9-4 3243 Siskiyou Siskiyou Mountains, Bear Creek off W. Fork Beaver Creek 1371 Comment
  NY63884  Pseudotsuga menziesii var. menziesii D. B. Dunn 1973-6-3 20650 Siskiyou Vicinity of the campground on the Salmon River, 8.3 miles west of Cecilville Comment
  CAS-BOT-BC361903  Psilocarphus tenellus Louis C. Wheeler 1934-6-2 2605 Siskiyou Klamath National Forest. Cherry River, Klamath R. 518 Comment
  UC17382  Ptelea crenulata Miss Edmonds 1890-7-21 Siskiyou Comment
  UC42931  Pteridium aquilinum var. pubescens Marshall A. Howe 1894-8-8 Siskiyou Shasta Soda Springs Comment
  HSC67724  Pterospora andromedea John S. Palmer 1980-8-12 680 Siskiyou SE of Wards Gap. 1189 Comment
  RSA97287  Pteryxia terebinthina var. californica F. W. Peirson 1923-7-19 3951 Siskiyou Whitney Creek at the foot of Mt. Shasta. Comment
  LA208179  Purshia tridentata var. tridentata Victor Duran; 1916-6-23 Siskiyou near Black Butte N of Sisson 1127 Comment
  UC1128525  Purshia tridentata var. tridentata R. D. Roseberry 1936-5-15 Siskiyou 0.5 mi e Coldwell Butte; Modoc Lava Beds National Monument, Dorris Quad. 1371 Comment
  UC1539993  Purshia tridentata var. tridentata Roseberry 1936-5-15 33 Siskiyou 0.5 mi e Caldwell Butte; Lava Beds National Monument 1371 Comment
  JEPS26519  Pyrola aphylla Lauramay T. Dempster 1961-7-1 1848 Siskiyou Mill Creek near Etna 1219 Comment
  CAS-BOT-BC460874  Pyrola aphylla Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Comment
  HSC69309  Pyrola crypta Maralyn A. Renner 1980-7-24 1979 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  JEPS83862  Pyrola crypta Wayne Roderick Jul 1976 Siskiyou Siskiyou Mts. vicinity Cook and Green Pass 1463 Comment
  HSC18921  Pyrola minor J. O. Sawyer 1969-8-1 1610 Siskiyou Behind Horseshoe Lake 1921 Comment
  SEINET185058  Pyrola picta Unknown 1939-7-8 5301 Siskiyou Ca. 15 miles north of Happy Camp on Happy Camp-Takilma Hiway 914 Comment
  SJSU2557  Pyrola picta H. L. Buckalew 1962-7-6 Siskiyou junction of Indian Cr & W Branch Indian Cr Comment
  UC922448  Pyrola picta Annie M. Alexander and Louise Kellogg 1949-7-28 5878 Siskiyou Marble Mountains, Sky High Valley Sky High Valley; Marble Mountains, Sky High Valley 1767 Comment
  HSC60913  Pyrola picta Al Hobart Siskiyou Black Butte Comment
  UC166180  Pyrola picta Geo. D. Butler 1908-7-2 38 Siskiyou head Long Gulch near Yreka Comment
  UC563092  Pyrrocoma racemosa var. paniculata Elmer I. Applegate 1923-8-21 3925 Siskiyou s of Lower Klamath Marsh; Willow Creek Comment
  CHSC34104  Pyrrocoma racemosa var. pinetorum J. D. Jokerst; M. D. Huffine 1981-9-8 1462 Siskiyou E of road in the section. 1249 Comment
  UC164057  Quercus chrysolepis Geo. D. Butler 1910-6-7 1530 Siskiyou Greenhorn Mountain Comment
  JEPS37952  Quercus garryana var. breweri Geo. D. Butler 1908-8-9 232 Siskiyou Marble Valley Camp Marble Valley 1676 Comment
  SFV17716  Quercus garryana var. breweri J. M. Tucker 1972-8-8 4245 Siskiyou Marble Mountains Marble Mountains. Trail from Whiskey Camp to Elk Peak, about 2.5 miles west-southwest of Marble Valley Guard Station. 1829 Comment
  SEINET3134590  Quercus garryana var. breweri G. L. Stebbins 1972-7-3 sn Siskiyou N of Seiad Valley. 0.5 mi. E of Cook and Green Pass 1494 Comment
  OBI36119  Quercus garryana var. garryana David J. Keil 1983-7-3 17379 Siskiyou 11 mi NE of jctn with SR 3 along Gazelle-Callahan rd Comment
  CAS-BOT-BC104357  Quercus sadleriana D. E. Breedlove 1962-6-10 3289 Siskiyou on SW slope of Little Greyback Mountain along Indian Creek Road from O'Brien to Happy Camp, 20.7 miles NW of Happy Camp 1554 Comment
  RSA237866  Quercus sadleriana Frederick W. Oettinger 1969-9-4 1668 Siskiyou Near gap between Tobacco Lake and Toms Lake Basin (in Tobacco Lake Basin), Salmon Mountians, the High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area. 1829 Comment
  UC1043394  Quercus sadleriana P. C. Everett and E. K. Balls 1954-10-12 20274 Siskiyou 2 mi w Dry Lake Lookout (Horse Creek to Dry Lake Lookout); Horse Creek 1920 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
  CAS-BOT-BC104339  Quercus sadleriana Baki Kasapligil 1981-6-26 6184 Siskiyou 9 miles E of O'Brien road from Takilm to Happy Camp Comment
  LA205358  Quercus sadleriana Edward Lee; 1934-8-13 1067 Siskiyou Kalmath National Forest, Happy Camp to Waldo (Oregon) rd, watershed of W Branch of Indian Creek 1371 Comment
  RSA82852  Quercus sadleriana J. M. Tucker, R. Tofsrud 1948-8-3 1779 -C Siskiyou Summit of Happy Camp - O'brien (Oregon) road. On Del Norte-Siskiyou county line. 1555 Comment
  HSC99609  Quercus vacciniifolia G. L. Clifton, Griswold 1979-6-28 6136 Siskiyou Near Upper Devils Peak 1738 Comment
  POM211265  Quercus vacciniifolia Louis C. Wheeler 1934-9-4 3242 Siskiyou Bear Creek off West Fork Beaver Creek. 1372 Comment
  UCD47447  Quercus vacciniifolia John M. Tucker 1948-8-3 1776 Siskiyou California, Siskiyou Co.; 6.7 mi. (by road) below the summit of Happy Camp - Waldo road; Comment
  UCD47466  Quercus vacciniifolia Beecher Crampton 1956-8-21 3847 Siskiyou Canyon of the Sacramento River just above the junction of the North Fork with Middle and South Forks, southwest of Mt. Shasta City, Siskiyou County. 1066 Comment
  UCR222479  Quercus vacciniifolia R. F. Thorne 1969-8-2 63399 B Siskiyou Klamath Ranges Region; Salmon Mountains, Klamath National Forest, Marble Mountain Wilderness Area, trail to English Peak [along N fork of Salmon River] 1159 Comment
  RSA593942  Quercus vacciniifolia Louis C. Wheeler 1963-9-3 8345 Siskiyou Cyclone Gap chrome mine. Comment
  SEINET10970880  Quercus vacciniifolia Patricia L. Kenney 1973-6-4 Kenney 385 Siskiyou On steep roadbank along road from cecilville to callahan; 6.4 miles w of Callahan 1737 Comment
  SBBG25915  Ranunculus alismifolius D. Myrick 1966-8-12 1541 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  SEINET3159745  Ranunculus alismifolius G. D. Butler 1910-5-10 1322 Siskiyou Bulls meadows; Goosenest mountain 1676 Comment
  HSC44976  Ranunculus alismifolius var. alismellus J. O. Sawyer 1978-6-20 3271 Siskiyou Marble Mtn. Wilderness Area, Hamilton Camp 1829 Comment
  UCD95823  Ranunculus alismifolius var. alismifolius Robert E. Preston 2001-6-23 1608 Siskiyou Klamath National Forest, north-facing slope of Rainbow Mountain. 1981 Comment
  SEINET3160893  Ranunculus canus G. D. Butler 1910-4-19 1199 Siskiyou near Yreka Comment
  RSA715780  Ranunculus cymbalaria var. saximontanus L. Ahart, John Dittes 2005-6-9 12040 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  UC375274  Ranunculus flammula Geo. D. Butler 1908-8-3 350 Siskiyou Shackleford Creek Long Lake Comment
  UC635098  Ranunculus glaberrimus D. Tebbe 1930-3-28 70 Siskiyou Weed Comment
  HSC18127  Ranunculus occidentalis var. dissectus Geo. D. Butler 1909-4-25 683 Siskiyou Quartz Valley Comment
  POM99425  Ranunculus occidentalis var. eisenii Geo. D. Butler 1908-6-28 362 Siskiyou Siskiyou county: Meadow near Oro Fino Comment
  HSC39295  Ranunculus occidentalis var. occidentalis J. O. Sawyer 1970-4-4 2083 Siskiyou Along Sugar Creek 823 Comment
  POM268494  Ranunculus occidentalis var. ultramontanus C. L. Hitchcock 1939-7-6 5197 Siskiyou 10 miles SE of Takihua, Oregon, on road to Happy Camp, Siskiyou Mts. 1220 Comment
  HSC98334  Ranunculus orthorhynchus G. L. Clifton 1979-7-1 6160 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  RSA47794  Ranunculus orthorhynchus Roxana S. Ferris, Laura Lorraine 1948-6-12 11820 Siskiyou E Fork of Scott River drainage, Parker Ranch, Plowman's Valley. 1204 Comment
  UCD97135  Ranunculus testiculatus T. C. Fuller 1970-3-24 19359 Siskiyou Yreka, Juvenile Hall, s. of junct. of Annie and State Streets. Comment
  HSC98332  Ranunculus uncinatus G. L. Clifton 1979-7-1 6162 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  RSA47792  Ranunculus uncinatus var. parviflorus Roxana S. Ferris, Laura Lorraine 1948-6-12 11746 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  RSA12077  Rhamnus purshiana Louis C. Wheeler 1934-10-28 3351 Siskiyou Shasta Riuver 2miles below Yreka Creek, Siskiyou Mts. Mt. Diablo Mer 823 Comment
  POM136602  Rhamnus rubra H. M. Hall, E. B. Babcock 1903-06 s.n. Siskiyou Head of McCloud River Comment
  HSC30573  Rhododendron columbianum Frederick W. Oettinger 1968-8-2 349 Siskiyou Marble Mountain Wilderness, S of Diamond Lake 2073 Comment
  UCD117874  Rhododendron columbianum 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. 1615 Comment
  UC456172  Rhododendron occidentale I. J. Condit 1909-8-23 Siskiyou Castle Lake near Sisson; Castle Lake Comment
  CAS-BOT-BC200351  Rhododendron occidentale var. paludosum Alice Eastwood 1917-9-2 6648 Siskiyou Shasta Springs Comment
  CAS-BOT-BC168121  Rhus aromatica L. R. Abrams 1922-8-6 9909 Siskiyou Klamath River 6 miles below Hornbrook Comment
  CAS-BOT-BC200745  Rhus aromatica Elmer I. Applegate 1898-5-15 2127 Siskiyou Klamath River. Between Shovel Creek and Fall Creek 853 Comment
  CAS-BOT-BC438004  Ribes L. B. Kildale 1929-5-26 9192 Siskiyou Salmon River at Hawkin Car 609 Comment
  CAS-BOT-BC94998  Ribes binominatum R. C. Wenk 2005-6-17 173 Siskiyou Trinity Alps, S Fork of the Salmon River, near Big Flat Campground at S end of Big Flat Meadow 1517 Comment
  UC1167541  Ribes binominatum C. R. Quick 1936-8-18 Siskiyou near Oregon State Line (margins of Poker Flat, near summit of Siskiyou Mountains); Klamath National Forest Comment
  CAS-BOT-BC108773  Ribes cereum Elmer I. Applegate 1923-8-18 3171 Siskiyou Top of Redshale Mountain, east of Medicine Lake. 2438 Comment
  JEPS43483 Image available Ribes cereum W. L. Jepson 1940-6-27 20036 Siskiyou e slope Mt. Shasta (along the Military Road) 1828 Comment
  UC1127414  Ribes cereum M. H. Mitchell 1936-5-8 5 Siskiyou 1/2 mi w Incline Cone (close to road); Modoc Lava Beds Natl. Mon., Dorris Quadrangle Comment
  CAS-BOT-BC168862  Ribes inerme var. klamathense A. A. Heller 1905-6-15 8042 Siskiyou Near Sisson, first ridge west of Sisson Comment
  CAS-BOT-BC173290  Ribes lacustre Roxana S. Ferris; Laura Lorraine 1948-6-12 11752 Siskiyou French Creek Logging Road west of Callahan 1219 Comment
  HSC69539  Ribes lacustre Maralyn A. Renner 1980-8-6 2249 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  RSA237680  Ribes lacustre Frederick W. Oettinger 1969-7-11 972 Siskiyou SE corner of Hancock Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1936 Comment
  CAS-BOT-BC173300  Ribes lacustre Milo S. Baker 1926-7-23 113 -'26 Siskiyou S. Fork Mt. - 5 mi. north of highway Comment
  CAS-BOT-BC173396  Ribes lobbii John Thomas Howell 1939-8-10 15285 Siskiyou Grindstone Camp, Canyon Creek, Marble Mts. Comment
  UC455590  Ribes lobbii I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1524 Comment
  UC570823  Ribes lobbii Dorothy Tebbe 1929-6-12 15 Siskiyou White's Gulch Salmon Mountains Comment
  RSA0021144  Ribes lobbii Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1250 Siskiyou Outlet of Pine Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  CAS-BOT-BC212489  Ribes marshallii Harley P. Chandler 1901-6-1 1549 Siskiyou Ridges and meadows near Marble Mountain 1828 Comment
  JEPS22241  Ribes marshallii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6887 Siskiyou Poker Flat Siskiyou Mountains 1536 Comment
  UC1167540  Ribes marshallii C. R. Quick 1936-8-18 Siskiyou n Happy Camp (margins of Poker Flat near summit of mountains); Siskiyou Mountains, Klamath National Forest Comment
  UC165747  Ribes marshallii Geo. D. Butler 1908-5-4 257 Siskiyou Head of Shackleford Creek Comment
  CAS-BOT-BC219264  Ribes nevadense A. A. Heller 1915-8-26 12244 Siskiyou Wagon Creek at the foot of Mount Eddy 1127 Comment
  RSA0023155  Ribes nevadense Chadwick, Mrs. Chadwick 1911-07 s.n. Siskiyou Shasta Springs. Comment
  CDA25560  Ribes odoratum J. R. Grisham 1965-7-29 Siskiyou F. Schultz property, Yreka. 0 Comment
  CAS-BOT-BC199994  Ribes roezlii var. cruentum Lewis S. Rose 1945-6-18 45056 Siskiyou Horse Creek & Klamath River 502 Comment
  CAS-BOT-BC199995  Ribes roezlii var. cruentum Carl B. Wolf 1927-8-26 1068 Siskiyou On the Klamath River, 8 mi. above Hamburg Comment
  CAS-BOT-BC200000  Ribes roezlii var. cruentum Roxana S. Ferris; Laura Lorraine 1948-6-12 11782 Siskiyou Small tributary of Etna Creek below Mill Creek Bridge 1066 Comment
  UC165273 Image available Ribes sanguineum Geo. D. Butler 1909-4-24 670 Siskiyou Greenhorn road Comment
  RSA0019539  Ribes sanguineum Frederick W. Oettinger 1969-7-9 936 Siskiyou Northwest of Upper English Lake. The high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area. 1921 Comment
  CAS-BOT-BC144511  Ribes sanguineum var. sanguineum A. M. Vollmer; L. Beane 1951-6-2 79 Siskiyou Happy Camp, Klamath River Highway Comment
  JEPS43488  Ribes velutinum W. L. Jepson 1940-6-23 19986 Siskiyou e Grenada and Mayten (e side of Little Shasta Valley); Little Shasta Valley 883 Comment
  UC165920  Ribes velutinum Geo. D. Butler 1910-3-13 1128 Siskiyou Klamath hills Comment
  UC375357  Ribes velutinum Geo. D. Butler 1909-3-28 576 Siskiyou near Yreka Comment
  CAS-BOT-BC168808  Ribes viscosissimum John Thomas Howell 1937-7-25 13462 Siskiyou Caribou Basin, Salmon-Trinity Alps 2133 Comment
  CDA25590  Ribes viscosissimum T. C. Fuller 1962-6-13 8978 Siskiyou Road to Medicine Lake & Toad Lake, 6 miles northeast of Bartle. 0 Comment
  UCD102544  Ribes viscosissimum John M. Tucker 1963-7-7 3710 Siskiyou in vicinity of Paradise Lake, at base on east side of Kings Castle, Marble Mountain Wilderness Area. 1981 Comment
  CDA25592  Ribes viscosissimum var. hallii Jennifer Whipple 1976-6-19 1063 Siskiyou Klamath Mountains; Dale Creek drainage on the north face of Mount Eddy. Comment
  RSA472513  Rigiopappus leptocladus L. C. Wheeler 1934-6-2 2617 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mountains. 671 Comment
  RSA237294  Rorippa curvisiliqua Frederick W. Oettinger 1969-9-1 1574 Siskiyou Dry Lake. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1982 Comment
  UC164065  Rosa californica Geo. D. Butler 1910-5-16 1352 Siskiyou Yreka Comment
  UC375395  Rosa californica Geo. D. Butler 1908-6-20 1044 Siskiyou near Yreka Comment
  UC467675  Rosa californica Annie M. Alexander and Louise Kellogg 1911-6-13 128 Siskiyou 6 mi nw Callahan Comment
  CAS-BOT-BC146737  Rosa gymnocarpa Gilbert Muth 1966-7-29 466 Siskiyou Marble Valley, Marble Mts. 1828 Comment
  UC454967  Rosa gymnocarpa I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1828 Comment
  CAS-BOT-BC146759  Rosa gymnocarpa W. R. Dudley 1901-8-25 s.n. Siskiyou Carters Meadow, Salmon Mts. Comment
  CAS-BOT-BC147072  Rosa pisocarpa Alice Eastwood 1923-5-23 11936 Siskiyou Cantara, S.P.R.R. Comment
  CAS-BOT-BC148191  Rosa rubiginosa Carl B. Wolf 1927-8-27 1112 Siskiyou On the Klamath River, Happy Camp Comment
  JEPS82988  Rubus glaucifolius Louis C. Wheeler 1934-8-31 3233 Siskiyou Bear Creek off West Fork Beaver Creek; Siskiyou Mts., Bear Creek off West Fork Beaver Creek 1767 Comment
  UCR66438  Rubus glaucifolius L. C. Wheeler 1934-8-31 3233 Siskiyou Siskiyou Mountains: semi-shady E slope. Bear Creek off W Fork Beaver Creek 1768 Comment
  CAS-BOT-BC147141  Rubus glaucifolius D. K. Noyes 1911-9-29 22 Siskiyou Klamath National Forest Comment
  HSC61949  Rubus lasiococcus Ruby Van Deventer 17 Jul [year missing] Siskiyou Poker Flat 1585 Comment
  HSC96406  Rubus lasiococcus Gordon Leppig, J. Kalt 1996-7-9 363 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  HSC59593  Rubus leucodermis J. P. Smith, Steve Selva 1970-6-16 4052 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  CAS-BOT-BC147317  Rubus parviflorus L. E. Smith 1913-5-27 291 Siskiyou Weed Comment
  HSC82  Rubus parviflorus William J. Ferlatte 1966-8-18 421 Siskiyou Along the South Fork of the Salmon River between the campground and Carter's 1524 Comment
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  UC224268  Rubus parviflorus H. E. Brown June 1-10, 1897 312 Siskiyou near Sisson; near Sisson 1083 Comment
  CAS-BOT-BC363170  Rudbeckia californica Peter H. Raven 1956-9-5 10466 Siskiyou North Fork of Sacramento River 1584 Comment
  HSC92181  Rudbeckia klamathensis Jennifer Whipple 1977-8-6 2208 Siskiyou Klamath Mtns., SW of Dobkins Lake along drainage into the lake 2104 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
  CAS-BOT-BC433865  Rumex salicifolius Peter H. Raven 1956-8-11 10068 Siskiyou 9.6 miles south of turnoff to Bray on U.S. Highway 91 Comment
  UC166121  Sagina saginoides Geo. D. Butler 1910-7-12 1764 Siskiyou Shackleford Creek 1219 Comment
  UC441328  Sagittaria cuneata H. W. Furlong Sept. 1901 Siskiyou Summit to Ager; Summit to Ager Comment
  CAS-BOT-BC103539  Salix commutata Louis C. Wheeler 3083 Siskiyou Klamath National Forest, Jaynes Canyon 1981 Comment
  HSC75264  Salix eastwoodiae J. O. Sawyer, M. Mesler 1980-8-12 4043 Siskiyou Marble Valley 1829 Comment
  RSA238019  Salix eastwoodiae Frederick W. Oettinger 1969-8-8 1297 Siskiyou Sundew Bog near English Lake. Salmon Mtns; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1829 Comment
  UC1409267  Salix eastwoodiae Frederick W. Oettinger 1968-8-2 364 Siskiyou e outlet of Diamond Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 2072 Comment
  CAS-BOT-BC107788  Salix hindsiana Doris K. Kildale 1928-7-25 5867 Siskiyou Between Gottsville & Brown's Resort on Klamath River Comment
  CAS-BOT-BC107654  Salix jepsonii Alice Eastwood 1921-7-24 10716 Siskiyou Castle Lake Comment
  CAS-BOT-BC125447  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-19 429 Siskiyou North base of Mount Eddy, about 10 km. northwest of Shasta City; east of Metcalf ranch house 1200 Comment
  CAS-BOT-BC125460  Salix lasiandra var. lasiandra John Thomas Howell 1939-8-9 15206 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  SD1002  Salix lasiandra var. lasiandra Mrs. H. P. Bracelin 1931-6-19 411 Siskiyou Northeast side of Mount Eddy, about 16 km northwest of Shasta City, edge of stream above Metcalf Ranch house 1424 Comment
  POM219895  Salix lasiolepis H. P. Bracelin 1931-6-19 422 Siskiyou NE side of Mt Eddy. About 16 km NW of Shasta City. 1500 Comment
  UC482340  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-22 476 Siskiyou Gibson flag station Pit River (125 km n of Red Bluff) 450 Comment
  CAS-BOT-BC128309  Salix lasiolepis var. lasiolepis L. R. Abrams 1922-8-7 9902 Siskiyou Klamath River 6 mi. below Hornbrook Comment
  CAS-BOT-BC124902  Salix lemmonii Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City; above Metcalf ranch house 1455 Comment
  RSA201420  Salix lucida subsp. lasiandra J. T. Howell 1939-8-9 15206 Siskiyou Sky High Valley, Marble Mountains. 1829 Comment
  SBBG57825  Salix lucida subsp. lasiandra Mrs. H. P. Bracelin 1931-6-19 423 Siskiyou NE side of Mt Eddy, ca. 16 km NW of Shasta City, above Metcalf ranch house 1350 Comment
  CAS-BOT-BC125683  Salix melanopsis L. E. Smith 1914-7-6 751 Siskiyou Cantara Comment
  UC481730  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou near hwy. at Flume Creek Camp (Flume Creek - tributuary of Pit River); Flume Creek 555 Comment
  HSC61952  Salix scouleriana Ruby Van Deventer 1961-6-14 Siskiyou Poker Flat 1524 Comment
  HSC65537  Salix scouleriana R. White 1977-7-8 117 Siskiyou 1/4 mi. SE of creek crossing with trail to Devil's Punchbowl 1372 Comment
  HSC68376  Salix scouleriana Maralyn A. Renner 1980-6-26 1212 Siskiyou N edge of Flint Valley 1390 Comment
  JEPS38506  Salix scouleriana Geo. D. Butler 1908-8-11 148 Siskiyou Shackleford Creek 1066 Comment
  POM219899  Salix scouleriana H. P. Bracelin 1931-6-19 435 Siskiyou N base of Mt Eddy. About 10 km NW of Shasta City. E of Metcalf ranch house. 1080 Comment
  RSA238270  Salix scouleriana Frederick W. Oettinger 1969-7-29 1093 Siskiyou Margin of Dry Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1845 Comment
  RSA238271  Salix scouleriana Frederick W. Oettinger 1968-8-2 363 Siskiyou Outlet of Diamond Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2073 Comment
  SEINET10682428  Salix scouleriana Karen M. Meyer, Andrew Townesmith 2007-7-31 Meyer 179 Siskiyou Shasta-Trinity National Forest. 8.1 mi. on NF Rd. 17, off US Hwy. 97. 1607 Comment
  UC449843  Salix scouleriana L. S. Smith 1931-6-1 13 Siskiyou near Mt. Shasta Mt. Shasta 1066 Comment
  HSC92120  Salix sitchensis Jennifer Whipple 1978-10-6 2418 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  CAS-BOT-BC220803  Salvia dorrii var. dorrii Elmer I. Applegate 1935-6-8 9450 Siskiyou Summit of Sconchin [Schonchin] Butte, Lava Beds National Monument Comment
  OBI5331  Salvia pratensis C. S. Giebner 1968-7-29 s.n. Siskiyou E.H. Marlow prop, Greenhorn Valley, ca 2 mi W of Yreka Comment
  CAS-BOT-BC235043  Sambucus A. M. Vollmer; L. Beane 1953-7-1 111 Siskiyou Junction, Horse Creek-Klamath River Comment
  RSA183737  Sambucus caerulea Gilbert Muth 1965-8-2 143 Siskiyou 1/2 mile btween gate and Lower Sky High Lakes, Marble Mountains Comment
  SEINET10814436  Sambucus caerulea Andrew Townesmith 2012-9-4 Townesmith 2402 Siskiyou Along California route 89, 4.0 miles east of intersection with Interstate 5. 1318 Comment
  UC60941  Sambucus mexicana Geo. B. Grant September, 1902 5243 Siskiyou Shasta Springs Mount Shasta 609 Comment
  RSA238832  Sambucus microbotrys Frederick W. Oettinger 1968-8-6 423 Siskiyou Along lake trail on the southeast side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  CAS-BOT-BC238877  Sambucus nigra subsp. caerulea Gilbert Muth 1966-7-29 459 Siskiyou Marble Valley, Marble Mts. 1795 Comment
  CAS-BOT-BC238881  Sambucus nigra subsp. caerulea John Thomas Howell 1934-7-4 12409 Siskiyou Unspecified Comment
  HSC3965  Sambucus nigra subsp. caerulea D. M. Thomson 1965-8-7 176 Siskiyou California Lava Beds National Monument, 1 mile up Cave Loop Trail. Comment
  CAS-BOT-BC236483  Sambucus racemosa subsp. racemosa Annetta Carter 1939-8-21 1479 Siskiyou Southeast end of Taylor Lake, 12 miles southwest of Etna, Salmon Mountains 2042 Comment
  JEPS45510  Sanguisorba annua W. L. Jepson July 1894 13862 Siskiyou Sisson Comment
  POM90116  Sanguisorba annua Geo. D. Butler 1910-6-3 1468 Siskiyou [??] Valley Comment
  HSC61954  Sanicula graveolens Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1555 Comment
  UC1733806  Sanicula graveolens Kay H. Beach, Frank Gould 1940-5-15 620 Siskiyou upper Bull Meadows. Comment
  HSC100834  Saponaria officinalis J. P. Smith 2009-8-22 12660 Siskiyou Near bridge over East Fork of the Scott River. 1006 Comment
  CDA8573  Saussurea americana T. C. Fuller, Don Shaw 1974-9-24 20045 Siskiyou Northwestern; Klamath Ranges region; Headwaters of Horse Creek, southwest slope of White Mountain, Siskiyou Mountains. 0 Comment
  RSA237374  Saxifraga Frederick W. Oettinger 1967-7-8 154 Siskiyou North-facing cliff between Big Blue Lake and Hogan Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  HSC103906  Saxifraga bryophora Dana York, Richard Helliwell 2010-9-11 3014 Siskiyou Six Rivers National Forest. Northeast slope of Broken Rib Mountain 1671 Comment
  UC630404  Saxifraga ferruginea Annetta Carter 1939-8-21 1473 Siskiyou 12 mi sw of Etna (above ne end of Taylor Lake); Salmon Mountains 2194 Comment
  JEPS47522  Saxifraga nidifica var. nidifica Harley P. Chandler 1901-6-25 1612 Siskiyou Salmon-Marble Mts. Upper Cuddihy Valley (Klamath River to Marble Mt.); , Klamath River to Marble Mt. 1524 Comment
  JEPS47635  Saxifraga oregana Milo S. Baker 1899-8-4 Siskiyou Dead Horse Canyon Comment
  HSC718  Saxifragopsis fragarioides William J. Ferlatte 1967-8-20 1054 Siskiyou Caribou Basin, Sawtooth Ridge 2043 Comment
  CAS-BOT-BC445876  Saxifragopsis fragarioides M. B. Dunkle 1945-7-22 9242 Siskiyou Wooley Pocket, Klamath Forest 2133 Comment
  HSC68402  Scirpus congdonii Maralyn A. Renner 1980-6-26 1136 Siskiyou Flint Valley. 1390 Comment
  UC149654  Scirpus microcarpus H. M. Hall and E. B. Babcock June, 1903 4044 Siskiyou 18th crossing Mount Shasta, near Sisson (near Sisson) 1036 Comment
  RSA210796  Scirpus nevadensis Robert F. Thorne, James Henrickson, C. W. Tilforth 1969-9-3 39044 Siskiyou 2 miles W of Lower Klamath National Wildlife Refuge 1296 Comment
  POM112204  Scribneria bolanderi Edward L. Greene 1876-1 s.n. Siskiyou Yreka Comment
  RSA238373  Scribneria bolanderi Frederick W. Oettinger 1967-7-20 181 Siskiyou East bank of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  HSC334  Scutellaria angustifolia C. B. Wolf 1927-8-26 996 Siskiyou Klamath River, 5 mi. below Hornbrook Comment
  RSA60645  Scutellaria antirrhinoides Rodney Gregg 1948-08 s.n. Siskiyou Gazelle Mountain 1220 Comment
  UC1023836  Scutellaria antirrhinoides Milo S. Baker and Douglas Barbe 1955-7-1 80 Siskiyou just behind Callahan (to the north); Klamath Mountains 975 Comment
  JEPS94880  Scutellaria galericulata Vernon H. Oswald and Lowell Ahart 1998-7-21 9350 Siskiyou ne of Weed and s of Macdoel (along Old State Highway on the w side of Bray); along Old State Highway on the w side of Bray 1417 Comment
  HSC103033  Secale cereale J. P. Smith 2014-6-7 13891 Siskiyou Etna Comment
  CAS-BOT-BC64661  Sedum kiersteadiae Laura M. Lathrop 1903-7-25 s.n. Siskiyou Mt. Bradley Comment
  RSA0076354  Sedum lanceolatum C. L. Hitchcock, J. S. Martin 1939-7-9 5331 Siskiyou 1/2 mile SE of King's Castle, Marble Mts. 1829 Comment
  CHSC116241  Sedum lanceolatum var. lanceolatum Barbara L. Wilson; Rhonda Posey, Julia K. Nelson 2011-8-10 16830 Siskiyou Ridge line west of Kangaroo Lake, near loop at end of road 40N15; UTM Zone 10 529792 east, 4575286 north +-30 feet. 2012 Comment
  CAS-BOT-BC278769  Sedum laxum subsp. heckneri Peter F. Zika 2011-7-19 25641 Siskiyou FS Road 1040, 3.7-3.8 road miles (5.9 km) above junction with FS Road 10 at mouth of Carberry Creek, along Middle Fork Applegate River, 1 air mile NW of Abney Butte, Siskiyou Mountains, Klamath Range (KR) 610 Comment
  CAS-BOT-BC61474  Sedum laxum subsp. heckneri Doris K. Kildale 1928-7-2 5362 Siskiyou Salmon summit near Horn Creek trail 1981 Comment
  RSA0104952  Sedum laxum subsp. heckneri L. C. Wheeler 1934-8-15 3156 Siskiyou E Fork Horse Creek, Siskiyou Mts. 1220 Comment
  UC639143  Sedum obtusatum subsp. boreale W. B. Cooke 1939-8-10 13849 Siskiyou e bank Mud Creek Canyon Mount Shasta, e bank Mud Creek Canyon Comment
  SEINET10449669  Sedum obtusatum subsp. boreale Mary Susan Taylor 1980-7-8 Taylor 3116 A Siskiyou T39N R5W se sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on ridge S of Castle Lake, above Hearts Lake. 2017 Comment
  HSC19546  Sedum obtusatum subsp. retusum J. O. Sawyer 1969-8-4 1850 Siskiyou S of Sugar Lake 2134 Comment
  HSC59367  Sedum obtusatum subsp. retusum M. A. Baker 1979-7-30 1075 Siskiyou Marble Gap 2300 Comment
  JEPS77507  Sedum stenopetalum L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-7-18 4875 Siskiyou 7 air mi wsw of town Mt. Hebron (meadow 2 mi e of Bull Meadow); e of Bull Meadow, wsw of town of Mt. Hebron 1645 Comment
  JEPS82439  Sedum stenopetalum Gilbert Muth 1966-7-25 499 Siskiyou Marble Mt. Lookout , Marble Mt. Lookout (Marble Mt. Wilderness Area) 2097 Comment
  POM25601  Selaginella densa var. scopulorum E. B. Copeland 1903-10-9 273 Siskiyou Mt. Eddy 1524 Comment
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Jan 23 2011
  LA209667  Selaginella scopulorum Lawrence L. Kiefer; 1963-8-8 827 Siskiyou N of town of Horse Creek, along trail from Siskiyou Summit to White Mountain 1523 Comment
  RSA576443  Selaginella wallacei Louis Cutter Wheeler 1935-4-14 3419 Siskiyou West Fork Seiad Creek, Siskiyou Mtns. (Mt Diablo Mer) Comment
  RSA641068  Selaginella wallacei Louis Cutter Wheeler 1963-9-11 8388 Siskiyou Siskiyou Mountains: Elk Hole, Dillon Creek. . Comment
  CDA8599  Senecio canus T. C. Fuller 1977-6-14 20211 Siskiyou North of Highway 97, 3 km southwest of Deer Mountain Lodge. 0 Comment
  CAS-BOT-BC363744  Senecio hydrophilus T. C. Fuller 1958-9-12 1246 -58 Siskiyou Hwy 99, 5 mi S/Yreka Comment
  CAS-BOT-BC363745  Senecio hydrophilus T. C. Fuller 1958-9-12 s.n. Siskiyou 5 mi. s. of Yreka Comment
  UC1234602  Senecio integerrimus var. exaltatus Peter H. Raven 1962-5-30 17899 Siskiyou 12.3 mi s MacDoel (U.S. Highway 97) Comment
  CAS-BOT-BC363935  Senecio integerrimus var. exaltatus Mrs. H. C. Cantelow 1936-5-21 1255 Siskiyou W. slope Scott Mt. about 4 mi. S. of Callahan Comment
  RSA0125032  Senecio integerrimus var. exaltatus 1934-7-5 s.n. Siskiyou 3 6/10 mi from Dry Lake Lookout on rd. to Horse Creek, Siskiyou Mts. 1981 Comment
  CAS-BOT-BC364040  Senecio integerrimus var. major John Thomas Howell 1937-7-25 13455 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  UC34195  Senecio integerrimus var. major Harley P. Chandler June 1901 1606 Siskiyou near Marble Mountain; North Coast Ranges 1981 Comment
  HSC22187  Senecio integerrimus var. major J. O. Sawyer 1969-7-11 1319 Siskiyou Near S Sugar Creek 1982 Comment
  SEINET11803191  Senecio integerrimus var. major H. P. Chandler 1901-1 1606 Siskiyou near Marble Mountain, North Coast Ranges 1981 Comment
  SEINET10726584  Senecio scorzonella Karen M. Meyer, Andrew Townesmith 2007-7-31 Meyer 178 Siskiyou Shasta-Trinity National Forest. 8.1 mi. on NF Rd. 17, off US Hwy. 97. 1607 Comment
  UC163919  Senecio triangularis Geo. D. Butler 1910-6-5 1486 Siskiyou Shackleford Creek Comment
  OBI53729  Senecio triangularis David J. Keil, Kathleen Keil 1992-7-19 23468 Siskiyou Klamath NF. 1.4 mi NE of Salmon Mtn Summit on Sawyers Bar rd, SW of Etna Comment
  UC114369  Sibbaldia procumbens Thomas Howell May 1889 1383 Siskiyou Hornbrook Comment
  JEPS105152  Sidalcea asprella Dean W. Taylor 1993-7-30 13987 Siskiyou Bolan Lake Road (Forest Road 4812) about 2 mi E of Indian Creek Road (Forest Road 40S07); Klamath National Forest 1584 Comment
  JEPS83879  Sidalcea glaucescens Wayne Roderick Jul 1976 Siskiyou vicinity Cook and Green Pass (along trail to Lily Pad Lake); Siskiyou Mts. 1706 Comment
  UCD116649  Sidalcea glaucescens Rolf Y. Berg 1964-7-15 8265 Siskiyou Seiad Valley. Along dirt road west of Cook and Green Pass and above Lily Pad Lake, Siskiyou Mountains. Comment
  CAS-BOT-BC205783  Sidalcea oregana John Thomas Howell 1939-8-7 15122 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  HSC46140  Sidalcea oregana subsp. spicata J. P. Smith, Steve Selva 1970-7-27 4516 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  JEPS67299  Sidalcea oregana subsp. spicata W. L. Jepson 1937-7-23 18457 Siskiyou Yreka Comment
  UCD13282  Sidalcea oregana subsp. spicata K. F. Mawdsley 1996-7-10 14 Siskiyou California, Siskiyou County. From Castle Lake Trailhead to Little Castle Lake, T 39N R 4W, NW 1/4 of Section 19, Seven Lakes Basin 7.5 topo. Elevation 5450. Comment
  RSA68870  Sidalcea oregana subsp. spicata A. E. Culbertson 1943-7-1 86 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts.; 2000 above Sacramento R. within 10 airmiles of its headwaters to the west. Comment
  SBBG2045  Silene bernardina H. and M. Dearing 1939-7-1 3787 Siskiyou Salmon Mtn 1828 Comment
  JEPS100205  Silene campanulata subsp. glandulosa Dean W. Taylor 2002-6-10 18119 Siskiyou Scott Mountain, Forest Road 40N08 0.25 miles E of the junction with Highway 3 (3 miles NE from Scott Mountain summit) 1341 Comment
  UC465700  Silene douglasii Milo S. Baker Aug. 1897 135 Siskiyou Payne's Springs 1981 Comment
  CAS-BOT-BC388953  Silene grayi Alice Eastwood 1912-9-1 2066 Siskiyou Mount Shasta Comment
  HSC23547  Silene grayi J. O. Sawyer 1969-8-4 1861 Siskiyou Slope SW of Sugar Lake 2195 Comment
  HSC92644  Silene grayi Jennifer Whipple 1976-7-9 1398 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2226 Comment
  UCD98594  Silene grayi Dean Wm. Taylor 1975-8-14 5465 Siskiyou Mt. Shasta, between Shasta Ski area and Green Butte. 2590 Comment
  UCD98592  Silene grayi Mary Ann Showers 1980-8-28 2068 Siskiyou below n-facing lower slopes of Red-Butte, on lower slope of Mt. Shasta, Shasta-Trinity National Forest. 2407 Comment
  UC595107  Silene menziesii David D. Keck 1938-8-7 4853 Siskiyou 2 mi e Callahan (Scott Mountain Lodge, on E Fork Scott River at junction with Mill Creek); E Fork Scott River at jct w/ Mill Creek 1000 Comment
  UCD78002  Silene menziesii Robert E. Preston 2002-7-11 1899 Siskiyou Klamath National Forest, Trout Creek Meadow 1505 Comment
  CAS-BOT-BC389537  Silene menziesii Volney Rattan 1913-6-1 s.n. Siskiyou Klamath Comment
  HSC40424  Silene vulgaris J. O. Sawyer 1973-7-16 2542 Siskiyou Trail along Canyon Creek above Jct. with Wooley Creek 488 Comment
  CAS-BOT-BC75156  Sisymbrium altissimum Doris K. Kildale 1928-7-25 5901 Siskiyou Klamath River at Mack's Creek near Hamburg. 457 Comment
  CHSC48344  Sisymbrium altissimum Vernon Oswald 1986-5-29 2068 Siskiyou Lower Klamath National Wildlife Refuge, on the tour route ca. 1.5 mi s of Hwy 161. On levees. 1245 Comment
  RSA59810  Sisymbrium altissimum E. K. Balls 1950-5-17 14723 Siskiyou New Lava Flow, along road from Schonchin Butte to Capt. Jack s Stronghold, Lava Beds Nat l Monument. 1463 Comment
  UC1409480  Sisyrinchium bellum Frederick W. Oettinger 1969-8-1 1125 Siskiyou meadow below English Lake (in vicinity of English Peak,); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  UC163726  Smilax jamesii Geo. D. Butler 1910-6-6 1466 Siskiyou Quartz Valley Comment
  NY821197  Solanum parishii W. B. Cooke 1940-6-6 15075 Siskiyou Along the Castle Lake Road 1676 Comment
  RSA428812  Solanum villosum Louis C. Wheeler 1934-9-17 3275 Siskiyou Siskiyou Mts: Dutch Creek off Klamath River. 701 Comment
  CAS-BOT-BC365559  Solidago elongata Doris K. Kildale 1928-8-18 6459 Siskiyou Head of north fork of Salmon River at Finley's Upper Camp Comment
  CAS-BOT-BC365571  Solidago elongata Copeland 1903-8-12 3823 Siskiyou Sisson Comment
  HSC29090  Solidago elongata Frederick W. Oettinger 1968-8-12 494 Siskiyou Salmon Mountains, Tobacco Lake Trail 1890 Comment
  HSC34663  Solidago elongata Thomas W. Nelson, J. O. Sawyer 1974-10-29 1740 Siskiyou Hwy. 3, just S of Calaghan Comment
  HSC72358  Solidago elongata J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8980 Siskiyou 1/5 mi. W of S.R. 3 on Road 8 671 Comment
  SEINET5709930  Solidago multiradiata Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7698 Siskiyou Scott Mts. Collected along Road 17, 8.8 miles SW from the intersection of I-5 and Stewart Springs Road.; Scott Mountains 1586 Comment
  CAS-BOT-BC365249  Solidago velutina subsp. californica Geo. D. Butler 1910-7-30 1800 Siskiyou Yreka Creek Comment
  CAS-BOT-BC157321  Sorbus californica Wm. Bridge Cooke 1938-7-22 11341 Siskiyou Sisson Southern Trail spring Comment
  SJSU6530  Sorbus californica R. W. Trivelpiece 1973-6-21 145 Siskiyou Big Duck L, Scott R drainage c. 7.5 mi W of Callahan 2042 Comment
  HSC29500  Sorbus scopulina Frederick W. Oettinger 1968-8-13 501 Siskiyou Marble Mtn. Wilderness Area, S inlet to Hancock Lake 1936 Comment
  UC1222305  Sorbus scopulina Joseph P. Tracy 19478 Siskiyou summit of the Siskiyous (at crossing of Takilma-Happy Camp Road; 3 mi s of state line) 1463 Comment
  HSC29470  Sorbus sitchensis var. sitchensis Frederick W. Oettinger 1968-9-8 789 Siskiyou Marble Mtn. Wilderness Area, outlet of English Lake 1799 Comment
  RSA0097341  Spergularia rubra Gilbert Muth 1966-7-14 391 Siskiyou Flat above Marble Valley, Marble Gap Trail, Marble Mountains. 1829 Comment
  RSA0097343  Spergularia rubra Frederick W. Oettinger 1968-9-3 674 Siskiyou Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Meadow southeast of Horse Range Lake. 1821 Comment
  CAS-BOT-BC149684  Spiraea douglasii Carl B. Wolf 1930-10-22 1754 Siskiyou 1 mile west of Mt. Shasta City 1066 Comment
  CAS-BOT-BC149685  Spiraea douglasii Geo. D. Butler 1908-8-2 284 Siskiyou Shackleford Creek 1219 Comment
  RSA1888  Spiraea douglasii Carl B. Wolf 1930-10-22 1754 Siskiyou 1 mile W of Mt Shasta City. 1067 Comment
  RSA300520  Spiraea douglasii John Dourley, Walter Wisura 1982-10-16 3875 Siskiyou Castle Lake. SW of the town of Mt. Shasta. 1646 Comment
  SEINET7707713  Spiraea douglasii G. D. Butler 1910-7-9 1708 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC152559  Spiraea splendens John Thomas Howell 1937-7-29 13671 Siskiyou North side of Scott Mt. Comment
  CAS-BOT-BC421466  Spiraea splendens A. A. Heller 1916-7-22 12484 Siskiyou East side of Mt. Eddy 1676 Comment
  HSC62276  Spiraea splendens var. splendens Ruby Van Deventer 5 Aug [year missing] Siskiyou Youngs Valley Comment
  HSC97382  Spiranthes romanzoffiana A. Montalvo, J. D. Ackerman 1974-8-16 420 Siskiyou Clear Creek Trail, 0.5 mi. S of Cracker Meadows, Youngs Valley near Preston Peak, Siskiyou Mtns. 1220 Comment
  UC143404  Spiranthes romanzoffiana Dr. E. B. Copeland 1903-8-17 3927 Siskiyou Dietz' Spur 1158 Comment
  CHSC72245  Spirodela polyrhiza Vernon H. Oswald; Lowell Ahart 1998-9-16 9641 Siskiyou Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi east of Hwy. 97. 1243 Comment
  CAS-BOT-BC181421  Stellaria calycantha G. J. Muth 1969-8-12 1375 Siskiyou Second Valley 2225 Comment
  JEPS51153  Stellaria calycantha Milo S. Baker 1898-8-1 487 Siskiyou 1 mi s Medicine Lake Comment
  RSA377576  Stenanthium occidentale M. B. Dunkle 1945-07 9223 Siskiyou Klamath National Forest; Marble Mts. Comment
  CAS-BOT-BC375646  Stephanomeria lactucina Copeland 1903-8-15 3838 Siskiyou Sisson Comment
  UCD78020  Stephanomeria lactucina Robert E. Preston 2001-8-26 1768 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, 2072 Comment
  RSA237475  Stephanomeria lactucina Frederick W. Oettinger 1967-8-21 300 Siskiyou Pine Lake trail about midway down. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2024 Comment
  UCD136235  Stephanomeria paniculata L. D. Gottlieb 1966-7-24 6679 Siskiyou Shasta Ski Bowl Road, near 1.25 mile post, Mt. Shasta. 1219 Comment
  HSC101542  Stipa lemmonii var. lemmonii J. P. Smith, J. O. Sawyer, R. J. Cole 2010-7-11 12995 Siskiyou Gazelle-Callahan Road. 1233 Comment
  JEPS25565  Streptanthus tortuosus var. orbiculatus Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7190 Siskiyou pumice fields just e Mt. Shasta Ski Bowl Lodge (upper end of Everitt Hwy, sw slopes of mt); Mt. Shasta 2346 Comment
  SBBG21904  Streptanthus tortuosus var. orbiculatus D. Myrick 1962-7-25 952 Siskiyou Shasta Ski Bowl Hwy, Mt Shasta 1219 Comment
  UC70401  Streptanthus tortuosus var. orbiculatus Milo S. Baker 1899-7-31 Siskiyou above Warren and Anderson's Mill; Mt. Shasta, Ash Creek Comment
  HSC18972  Streptanthus tortuosus var. tortuosus J. O. Sawyer 1969-8-3 1780 Siskiyou Near Little Duck Lake 2073 Comment
  HSC62005  Streptopus amplexifolius Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  UC1191399  Suaeda calceoliformis Verne Grant and Irving Schneider 1947-8-26 8300 Siskiyou Lower Klamath Lake; flats by Interstate Highway Comment
  CAS-BOT-BC269618  Symphoricarpos albus var. laevigatus Geo. B. Grant 1902-9-6 s.n. Siskiyou Sisson Comment
  CHSC56532  Symphoricarpos albus var. laevigatus L. P. Janeway 1984-6-21 860 Siskiyou South side of Klamath River just east of Humbug Point. 594 Comment
  HSC27010  Symphoricarpos albus var. laevigatus J. P. Smith, J. O. Sawyer 1972-9-13 5778 Siskiyou 0.5 mi. W of Cook and Green Pass on rd. to Lily Pad Lake. Comment
  UC28695  Symphoricarpos albus var. laevigatus Milo S. Baker 1893-6 193 Siskiyou Medicine Lake Comment
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Jun 7 2008
  CAS-BOT-BC234793  Symphoricarpos mollis A. A. Heller 1905-6-1 s.n. Siskiyou Between Upper Soda Spring [Springs] and Shasta Retreat Comment
  HSC18881  Symphoricarpos mollis J. O. Sawyer 1968-9-13 722 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  UC1037472  Symphoricarpos rotundifolius var. rotundifolius Douglas Barbe 1955-8-1 334 Siskiyou Summit of Mt. Bolivar; Klamath Mountains, Scott Mts. 2468 Comment
  UC223703  Symphyotrichum bracteolatum Elmer I. Applegate 1923-8-21 3918 Siskiyou Willow Creek, (South end of Lower Klamath Lake) Lower Klamath Lake, Willow Creek Comment
  CAS-BOT-BC98952  Symphyotrichum foliaceum K. T. Stillman 1976-9-10 496 Siskiyou Scott Bar quad. Marble Mountain Wilderness Area. Up across marble on east side of Black Mtn. 2103 Comment
  CAS-BOT-BC98956  Symphyotrichum foliaceum var. parryi Saxton; Canfield 1922-8-21 63 Siskiyou Poker Flat - Klamath Forest Comment
  RSA238709  Symphyotrichum foliaceum var. parryi Frederick W. Oettinger 1969-8-16 1407 Siskiyou Wiregrass Meadow below English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  HSC92798  Symphyotrichum spathulatum var. spathulatum Jennifer Whipple 1977-8-4 2162 Siskiyou Wagon Creek Drainage on the E face of Mt. Eddy 2195 Comment
  OBI55546  Symphyotrichum spathulatum var. spathulatum David J. Keil, Kathleen Keil 1992-7-24 23570 Siskiyou E of McCloud along hwy 89, 7.7 mi W of Shasta County line Comment
  UCD86131  Taeniatherum caput-medusae P. B. Dickey 1940-5-26 954 Siskiyou Little Shasta Valley, near Little Shasta. Comment
  UC1408921  Taraxacum officinale Frederick W. Oettinger 1969-7-13 1010 Siskiyou s of Upper English Lake (high lake basins in the vicinity of English Peak, Marble Wilderness Area, w Siskiyou County); Salmon Mountians 1798 Comment
  CDA7686  Taraxacum officinale T. C. Fuller 1962-6-13 8984 Siskiyou Toad Well, road to Medicine Lake, ca. 12 miles northeast of Bartle. 0 Comment
  RSA237669  Tauschia howellii Frederick W. Oettinger 1967-8-21 298 Siskiyou 20 yards south off the Tom Taylor Cabin- Pine Lake Trail, just after one leaves the first patch of Red Fir woods (heading towards Pine Lake). The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC85242  Taxus brevifolia Doris K. Kildale 1925-9-6 1296 Siskiyou Mouth of Rodger Creek on Klamath River 274 Comment
  CAS-BOT-BC85246  Taxus brevifolia Doris K. Kildale 1929-5-11 7719 Siskiyou Cecilville, South fork of Salmon River Comment
  CAS-BOT-BC447416  Tellima grandiflora Wm. F. Herrin 1920-5-1 s.n. Siskiyou Shasta Springs Comment
  JEPS82442  Tellima grandiflora Gilbert Muth 1966-7-19 429 Siskiyou Marble Gap Trail Marble Mountain Wilderness Area (along first bluff) 1828 Comment
  UC166555  Tellima grandiflora Geo. D. Butler 1909-7-15 896 Siskiyou Highland Mine Comment
  UC1126994  Thelypodium brachycarpum H. S. Yates 1936-6-21 5817 Siskiyou 6 mi n Gazelle; Yreka Quad. 792 Comment
  POM228972  Thelypodium brachycarpum L. C. Wheeler 1935-6-30 3637 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  UC909331  Thelypodium flexuosum Dorothy Parker 1948-6-22 26 Siskiyou shoreline of lower Klamath Lake Klamath Lake 1280 Comment
  JEPS82688  Thlaspi montanum var. montanum Wayne Roderick 1984-6-5 Siskiyou above Castle Lake (ca 12 air km sw of Mt. Shasta city); above Castle Lake 1981 Comment
  UC165981  Thlaspi montanum var. montanum Geo. D. Butler 1908-6-27 119 Siskiyou Forest House Mountain Comment
  HSC36779  Thysanocarpus curvipes J. P. Smith 1974-5-25 7403 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  RSA0036026  Thysanocarpus curvipes var. curvipes Louis C. Wheeler 1925-5-11 3477 Siskiyou Klamath River at Ash Creek, Sisikyou Mts. 609 Comment
  CAS-BOT-BC447585  Tiarella trifoliata var. unifoliata Doris K. Kildale 1929-7-21 8736 Siskiyou Elk Lick, s. fork of Indian Creek 1219 Comment
  RSA120207  Tofieldia glutinosa subsp. occidentalis S. S. Tillett 1956-7-11 680 Siskiyou Meadows on both sides of Scott Mtn. divide, near campground; Siskiyou-Trinity cos. line, about 8 miles SE of Callahan 1616 Comment
  UC1045294  Tofieldia occidentalis subsp. occidentalis W. Bridge Cooke 1940-7-5 15278 Siskiyou Wagon Camp Mount Shasta 1737 Comment
  UC844400  Tofieldia occidentalis subsp. occidentalis Alice Eastwood 1912-9-1 551 Siskiyou Mount Eddy Comment
  UC3963  Tofieldia occidentalis subsp. occidentalis unknown 1431 Siskiyou 1066 Comment
  UC164323  Tonella tenella Geo. D. Butler 1910-4-17 1193 Siskiyou near Yreka Comment
  POM216004  Tonella tenella Louis C. Wheeler 1935-5-5 3460 Siskiyou Greenhorn Creek. Siskiyou Mtns. (Mt Diablo Mer.) 854 Comment
  JEPS25581  Tragopogon dubius Rimo Bacigalupi 1959-7-2 7212 Siskiyou Weed; e outskirts 1066 Comment
  OBI53788  Tragopogon dubius David J. Keil 1992-7-20 23470 Siskiyou W side of Scott Valley, 4.9 mi N of Etna along Calif Rte 3 875 Comment
  UCD136889  Tragopogon dubius J. M. Tucker 1950-7-24 1945 Siskiyou Outskirts of town of Mt. Shasta. Comment
  CAS-BOT-BC376177  Triantha occidentalis subsp. occidentalis Andrew Townesmith; Karen M. Meyer 2007-8-1 882 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway) 1983 Comment
  HSC69161  Triantha occidentalis subsp. occidentalis Maralyn A. Renner 1980-8-4 2206 Siskiyou Flint Valley 1390 Comment
  POM76576  Trientalis latifolia Geo. D. Butler 1910-5-23 1392 Siskiyou Humbug Mtn. 1220 Comment
  JEPS65700  Trifolium albopurpureum var. dichotomum Geo. D. Butler 1909-5-13 710 Siskiyou near Yreka; Klamath Hills Comment
  RSA322035  Trifolium cyathiferum John M. Gillett, C. W. Crompton 1966-6-4 12901 Siskiyou 8.1 miles west of Gazelle. Comment
  JEPS95830  Trifolium eriocephalum subsp. eriocephalum Vernon H. Oswald and L. Ahart 1999-7-5 9806 Siskiyou Gazelle Mtn. on road 41N03 0.2 mi southeast of Gazelle-Callahan Hwy.: T41N R7W Sect. 3, 4950 ft, yellow pine forest, serpentine substrate 1508 Comment
  UC968606  Trifolium eriocephalum var. eriocephalum C. L. Hitchcock and J. S. Martin 1939-7-7 5276 Siskiyou ca 13 mi s Takilma (Oregon); Sanger Peak Trail Comment
  CHSC113789  Trifolium fragiferum R. E. Brainerd 2010-8-6 1733 Siskiyou Weed. Alley west of Shasta Avenue and S.Davis Avenue. UTM Zone 10 552177E 4586525N. 1091 Comment
  CAS-BOT-BC219039  Trifolium howellii John Thomas Howell 1939-8-7 15118 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  RSA237884  Trifolium howellii Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1237 Siskiyou North west of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1883 Comment
  RSA183650  Trifolium hybridum Gilbert Muth 1965-8-16 228 Siskiyou Marble Valley Comment
  SEINET10577002 Image available Trifolium longipes subsp. shastense H. E. Brown 1897-6-1 Brown 365 Siskiyou Near Mt. Shasta. 1829 Comment
  UC968630  Trifolium longipes var. elmeri C. L. Hitchcock and J. S. Martin 1939-7-7 5275 Siskiyou ca 13 mi s Takilma (Oregon); Sanger Peak Trail Comment
  HSC43823  Trifolium macrocephalum Maralyn O'Meara 1974-5-27 477 Siskiyou Along Rd. 47N03 Comment
  UC164161  Trifolium macrocephalum Geo. D. Butler 1909-4-14 639 Siskiyou Dry hill Yreka Comment
  JEPS124492  Trifolium pratense Daniel Slakey 2015-7-14 165 Siskiyou Along Ager-Beswick Road, approximately 5 miles from Copco Lake. Comment
  JEPS47264  Trillium albidum Geo. D. Butler 1909-4-14 669 Siskiyou Humbug Comment
  HSC36427  Trillium ovatum subsp. oettingeri J. O. Sawyer 1969-6-12 937 Siskiyou Along Duck Lake Creek 1921 Comment
  HSC780  Trillium ovatum subsp. oettingeri William J. Ferlatte 1967-7-9 691 Siskiyou Kidd Creek Trail 1890 Comment
  UCD139920  Trillium ovatum subsp. oettingeri Maralyn A. O' Meara 1973-6-25 240 Siskiyou North Russian Creek, 1/2 mile south of Etna Summit on road from Sawyer's Bar to Etna. 1706 Comment
  CDA15527  Trisetum canescens G. F. Hrusa 1998-7-5 14695 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Perennial in dry deep shade of woods, growing in soft duff. Mile 8.2. Comment
  RSA184784  Trisetum canescens Gilbert Muth 1966-7-22 433 Siskiyou Meadow below Marble Rim, Marble Mountains. 2012 Comment
  POM198622  Trisetum canescens Geo D. Butler 1910-7-8 1661 Siskiyou Shackleford Creek. Comment
  CHSC4310  Trisetum cernuum D. Parker 1965-7-24 897 Siskiyou Near Horse Range Creek, Salmon Mt. 1828 Comment
  HSC39671  Trisetum cernuum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-4 5727 Siskiyou 0.9 mi. S of Sugar Creek on Parrott Mill Rd. 1341 Comment
  HSC18980  Trisetum spicatum J. O. Sawyer 1969-8-18 1982 Siskiyou Above South Sugar Creek 2134 Comment
  POM207158  Trisetum spicatum E. B. Copeland 1903-8-16 3895 Siskiyou Mt. Shasta 2439 Comment
  UC1265476  Trisetum spicatum Frederick W. Oettinger 1968-9-6 734 Siskiyou on trail se Tom's Lake (w Siskiyou Co., high lake basins in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 2164 Comment
  UC618667  Trisetum spicatum W. Bridge Cooke 1938-8-18 11485 Siskiyou Horse Camp Springs Mount Shasta (around the springs) Comment
  UC1001153  Triteleia crocea Dorothy Parker 1952-4-28 6 Siskiyou e side Scott Valley; Siskiyou Mountains 855 Comment
  JEPS96987  Triteleia crocea var. crocea Dean W. Taylor 1999-7-18 17273 Siskiyou Wiegel Mile, headwaters of Nickelwaite Creek (ca. 6 air miles southwest from Hilt) 1463 Comment
  UC1618204  Triteleia hyacinthina Barbara Ertter with Julie Kierstead and Jim Nelson 1990-7-15 9369 Siskiyou ca 1 mi e Toad Lake (at head of river, ca 8 air mi w of Mt. Shasta City); Middle Fork Sacramento River 1981 Comment
  SBBG122858  Triteleia hyacinthina B. Ertter, J. Kierstead, J. Nelson 1990-7-15 9369 Siskiyou ca. 1 mi E of Toad Lake, head of Middle Fk Sacramento River 1981 Comment
  UC161221  Triteleia ixioides subsp. anilina I. J. Condit 1911-7-27 Siskiyou Castle Lake 1828 Comment
  UC843609  Triteleia ixioides subsp. anilina A. A. Heller 1916-6-20 12413 Siskiyou ne base Mt. Eddy (Metcalf's Ranch); ne base Mt. Eddy, Metcalf's Ranch 1188 Comment
  LA21975  Triteleia ixioides subsp. anilina Mary V. Hood; 1940-6-6 15083 Siskiyou Klamath Mountains, Castle Lake Road Comment
  CDA15525  Triteleia laxa G. F. Hrusa 1998-7-5 14693 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.2. Comment
  RSA184681  Tsuga mertensiana Gilbert Muth 1966-7-29 131 Siskiyou Marble Valley, Marble Mountains. 1793 Comment
  CAS-BOT-BC80254  Tsuga mertensiana subsp. grandicona Louis C. Wheeler 1934-9-1 3237 Siskiyou Mud Springs, Middlehell Creek 1889 Comment
  HSC36609  Typha latifolia Brent Whiteley 1975-6-24 49 Siskiyou 235 Comment
  CAS-BOT-BC376181  Urtica dioica Andrew Townesmith; Karen M. Meyer 2007-8-3 895 Siskiyou Klamath National Forest, Oak Knoll Ranger District. Along state route 96, 5.2 miles west of National Forest boundary. Vicinity of Cayuse Day Use Area 576 Comment
  UC848743  Urtica dioica subsp. holosericea Alice Eastwood 1912-7-18 1217 Siskiyou Sisson Comment
  UC54461  Vaccaria hispanica H. M. Hall and E. B. Babcock June, 1903 4094 Siskiyou Mount Shasta Shasta Valley (Shasta Valley); Sierra Nevada Mountains, , Shasta Valley 853 Comment
  CAS-BOT-BC199182  Vaccinium cespitosum W. R. Dudley 1901-8-18 s.n. Siskiyou Shores of Jackson Lake, Salmon Mts. Comment
  CAS-BOT-BC199198  Vaccinium cespitosum Wm. Bridge Cooke 1940-7-5 15266 Siskiyou At Wagon Camp Comment
  HSC29334  Vaccinium cespitosum Frederick W. Oettinger 1969-7-11 976 Siskiyou Marble Mountain Wilderness Area, NE shore of Hancock Lake 1936 Comment
  JEPS116592  Vaccinium cespitosum Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -024 Siskiyou The Eddys, west of Mt. Shasta. West side of Toad Lake, headwaters of Middle Fork of upper Sacramento River South China Mountain 2118 Comment
  UC1190117  Vaccinium cespitosum Ira L. Wiggins 1955-7-27 13542 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  HSC19353  Vaccinium membranaceum J. O. Sawyer 1968-6-18 222 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  HSC19369  Vaccinium membranaceum J. O. Sawyer 1968-9-13 712 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC27969  Vaccinium parvifolium Carl W. Mize 1972-9-24 129 Siskiyou 732 Comment
  CAS-BOT-BC199485  Vaccinium scoparium W. R. Dudley 1901-8-23 s.n. Siskiyou Amphitheatre of Caribou Peak, Salmon Mts. Comment
  UC70299  Vaccinium uliginosum subsp. occidentale Milo S. Baker 1898-8-1 478 Siskiyou Medicine Lake Comment
  UC73559  Vaccinium uliginosum subsp. occidentale Milo S. Baker 1899-1 Siskiyou Bear Mts. Comment
  UCD94426  Vahlodea atropurpurea Jack Major; M. Fleschner, R. Pemble 1966-9-5 s.n. Siskiyou Marble Mountain to Sky High Lake, east of Marble Mountain, Marble Mountains. 1975 Comment
  LA10867  Vahlodea atropurpurea Jason Swallen; 1939-8-24 13892 Siskiyou Mount Shasta, around Squaw Valley Creek 2285 Comment
  HSC76701  Valeriana sitchensis subsp. sitchensis K. T. Stillman 1976-8-7 212 Siskiyou Marble Mtn. Wilderness Area. 1951 Comment
  CDA6695  Valerianella carinata Don Shaw 1972-6-1 Siskiyou Gus Goertz property, Ager-Montegue Road near Montegue. 0 Comment
  JEPS101147  Valerianella locusta Dean W. Taylor 1996-6-20 15716 Siskiyou upper Noyes Valley; along Noyes Valley Creek (ca. 20 air miles SW of Yreka) 1371 Comment
  HSC102655  Ventenata dubia J. P. Smith 2009-6-1 12615 Siskiyou Road to Tenant. Comment
  CAS-BOT-BC529108  Veratrum californicum John Thomas Howell 1939-8-10 15284 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  HSC19101  Veratrum viride J. O. Sawyer 1969-8-4 1812 Siskiyou Above Sugar Lake 2134 Comment
  UCSB14918  Verbascum blattaria Breedlove, Dennis 1962-6-11 Siskiyou Scott River, 3.5 miles south of Scott Bar 609 Comment
  SEINET9225188  Verbena lasiostachys G. D. Butler 1910-7-2 1621 Siskiyou Yreka. Comment
  HSC19340  Veronica americana J. O. Sawyer 1969-7-11 859 Siskiyou Ravine above C.C.C. road. 1280 Comment
  RSA426465  Veronica americana Edwin Kline 1920-06 s.n. Siskiyou Siskiyou Mtns. Comment
  CAS-BOT-BC5123  Veronica copelandii Edwin Bingham Copeland 1903-8-18 3931 Siskiyo