Search Results — 2000 specimen records retrieved (1398 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  JEPS83904  Abies amabilis Stephen K. Langer with Charles S. Rand 1988-6-21 Siskiyou 6.5 mi e Cook and Greene Pass (300 to 400 yards w of main spruce stand); White Mountain, Rogue River National Forest 1983 1645 Comment
  HSC31506  Abies concolor Steve Selva, Roger Jensen 1974-8-16 17 Siskiyou Above Sugar Lake trail Comment
  HSC69711  Abies magnifica Maralyn A. Renner 1980-7-15 1773 Siskiyou English Lake inlet 1780 Comment
  CHSC27348  Abies magnifica var. shastensis T. B. Devine 1976-10-23 363 Siskiyou Growing about 100 yds n of Little Duck Lake. 2042 Comment
Read comments
Apr 10 2006
  UC1001951  Abies magnifica var. shastensis Mrs. B. M. Berry 1954-10-9 1 Siskiyou between Etna and Salmon Mountain summit; Salmon Mountains, Salmon Mountain 1828 Comment
  UC60936  Abies magnifica var. shastensis Geo. B. Grant 1902-9-1 5124 Siskiyou Horse Camp Mt. Shasta 2438 Comment
  RSA237362  Abies procera Frederick W. Oettinger 1969-8-25 1547 Siskiyou Tom Taylor Cabin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2049 Comment
  CAS-BOT-BC330619  Acer circinatum Elmer I. Applegate 1895-5-30 70 Siskiyou Sisson Comment
  JEPS24792  Acer glabrum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6801 Siskiyou headwaters Sacramento River (Shore of Castle Lake); Castle Lake, Sacramento River 1661 Comment
  CAS-BOT-BC332785  Acer macrophyllum Alice Eastwood 1917-9-2 6654 Siskiyou Shasta Springs Comment
  CAS-BOT-BC336935  Acer negundo var. californicum Geo. D. Butler 1910-4-19 1204 Siskiyou Yreka Creek Comment
  HSC92338  Achillea millefolium Jennifer Whipple 1976-6-30 1198 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  JEPS74480  Achillea millefolium W. J. Ferlatte 1966-8-3 247 Siskiyou at, in wooded area near public camp Big Flat; Trinity Alps, Big Flat 1524 Comment
  UC1483458  Achillea millefolium Maralyn A. Renner 1980-7-23 1927 Siskiyou on w side <along> Pacific Coast Trail Upper Devils Peak; Klamath National Forest, Seiad Valley Quad., Pacific Coast T 1767 Comment
  UC468981  Achillea millefolium Annie M. Alexander and Louise Kellogg 1911-6-28 199 Siskiyou Wildcat Pk. 2194 Comment
  RSA183724  Achillea millefolium Gilbert Muth 1965-7-29 135 Siskiyou On top of Marble Mt. Lookout, Marble Mts. Comment
  RSA237254  Achlys triphylla Frederick W. Oettinger 1967-6-28 133 Siskiyou Kelly Gulch (tributary to Salmon River). The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  JEPS84209  Achlys triphylla subsp. triphylla L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6300 Siskiyou Indian Creek Rd. from Takilma to Happy Camp (just s. of state line) Comment
  CAS-BOT-BC210717  Achnatherum lemmonii Geo. D. Butler 1909-6-4 810 Siskiyou Near Yreka Comment
  UCD50622  Achnatherum lemmonii Robert E. Preston 2002-6-20 1829 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope. 1911 Comment
  POM115236  Achnatherum lemmonii var. lemmonii Geo D. Butler 1909-6-13 830 Siskiyou Moffitt Creek Comment
  RSA47651  Achnatherum lemmonii var. lemmonii Roxana S. Ferris, Laura Lorraine 1948-06 11791 Siskiyou Scott Mountain Road south of Callahan Comment
  RSA577538  Achnatherum lemmonii var. lemmonii L. C. Wheeler 1935-5-11 3480 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  CAS-BOT-BC105075  Achnatherum nelsonii subsp. dorei R. C. Wenk 2008-7-24 917 Siskiyou SW side of Mount Shasta, growing by side of road, Everitt Memorial Highway 1676 Comment
  CAS-BOT-BC216921  Achnatherum occidentale John Thomas Howell 1937-7-26 13523 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC216926  Achnatherum occidentale A. A. Heller 1916-6-22 12427 Siskiyou Near Black Butte N of Sisson 1127 Comment
  SEINET7593408 Image available Achnatherum occidentale Frederick W. Oettinger 1969-1 1352 Siskiyou Salmon Mountains, High Lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area - southeast ridge of English Peak 2134 Comment
  POM207038  Achnatherum occidentale subsp. californicum E. B. Copeland 1903-8-16 3896 Siskiyou Mt. Shasta. 2439 Comment
  RSA129519  Achnatherum occidentale subsp. californicum H. A. Jensen 1933-7-27 334 Siskiyou Grey Butte 2073 Comment
  UC175619  Achnatherum occidentale subsp. pubescens Mr. Roseman 1913-1 Siskiyou Butte Valley Comment
  UCD51195  Achnatherum occidentale subsp. pubescens A. A. Beetle; G. L. Stebbins Jr. 1942-5-30 3384 Siskiyou 1.5 miles northeast of Weed. Comment
  UCD51434  Achnatherum thurberianum Verne Grant; Irving Schneider 1947-8-26 8298 Siskiyou Lava Beds National Monument. Comment
  CAS-BOT-BC218017  Achnatherum thurberianum Leo W Whitney 1934-6-27 1974 Siskiyou Near Dome Mountain, 27 miles NE of Tennant Comment
  UC166598  Achyrachaena mollis Geo. D. Butler 1909-5-4 666 Siskiyou dryland near Yreka Comment
  SEINET5327388  Acmispon denticulatus G. Butler 1910-6-27 1610 Siskiyou Yreka Creek Comment
  HSC43030  Acmispon micranthus J. O. Sawyer, Ken Stillman 1976-7-2 2803 Siskiyou Slopes and ridges E of Little N Fork Trail. 732 Comment
  UC398632  Aconitum columbianum A. A. Heller 1927-8-1 14433 Siskiyou at State Teachers College near Shasta City (Sisson) 1074 Comment
  CAS-BOT-BC391536  Aconitum columbianum subsp. columbianum A. A. Heller 1914-8-28 11724 Siskiyou East side of Mt. Eddy 1310 Comment
  RSA183668  Aconitum columbianum var. columbianum Gilbert Muth 1965-8-16 220 Siskiyou Marble Valley, Marble Mts. Comment
  CAS-BOT-BC412915  Aconogonon davisiae John Thomas Howell 1937-7-24 13376 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC413840  Aconogonon davisiae Wm. Bridge Cooke 1938-7-21 11289 Siskiyou Mount Shasta. Between Horse Camp and Panther Creek Meadows Comment
  HSC2417  Aconogonon davisiae William J. Ferlatte 1966-8-5 341 Siskiyou Caribou Mtn. 2470 Comment
  UCD98559  Aconogonon newberryi R. Tofsrud 1948-8-2 s.n. Siskiyou Near Panther Meadow, Mt. Shasta. Comment
  CAS-BOT-BC418813  Aconogonon phytolaccifolium Annie M. Alexander; Louise Kellogg 1949-7-19 5808 Siskiyou Paradise Lake, Marble Mountains 1920 Comment
  HSC29437  Actaea rubra Frederick W. Oettinger 1968-9-1 635 Siskiyou Marble Mtn. Wilderness Area, E side of Abbott's Lake 1723 Comment
  UCD95421  Actaea rubra John M. Tucker 1963-7-7 3719 Siskiyou ca. 1/4 mile down the trail (north of) from the lake. Paradise Lake, at the base of Kings Castle on the east side, Marble Mountain Wilderness Area. 1981 Comment
  HSC147  Adenocaulon bicolor William J. Ferlatte 1966-8-3 264 Siskiyou Along the S Fork of the Salmon River between the campground and Carter's. 1524 Comment
  RSA264984  Adenocaulon bicolor Gilbert Muth 1975-8-1 s.n. Siskiyou Near Sutcliffe Creek, near Happy Camp 1341 Comment
  HSC46073  Adiantum aleuticum J. P. Smith, Steve Selva 1970-6-14 3876 Siskiyou Road to Steinacher Creek near Somes Bar. Comment
  HSC68309  Adiantum aleuticum Maralyn A. Renner 1980-7-4 1418 Siskiyou Clear Creek Trail, N of Trout Camp. 1067 Comment
  UCD51463  Aegilops cylindrica John Thomas Howell 1952-6-15 28366 Siskiyou along road just east of Montague. Comment
  UCD51464  Aegilops cylindrica T. C. Fuller 1958-6-19 1611 Siskiyou R.R. sideing, Montague. Comment
  UCD51466  Aegilops cylindrica T. C. Fuller 1962-6-12 8970 Siskiyou Little Shasta Rd., 1 mile east of Montague. Comment
  CHSC114933  Aegilops cylindrica D. B. Joley 1976-6-24 1 Siskiyou Montague. Comment
  UC882912  Agastache urticifolia John Thomas Howell 1939-8-6 15092 Siskiyou Spirit Lake; Marble Mts., Spirit Lake Comment
  HSC29314  Agastache urticifolia Frederick W. Oettinger 1969-7-31 1117 Siskiyou Marble Mtn. Wilderness Area, NNW of English Lake outlet 1806 Comment
  CAS-BOT-BC29447  Ageratina occidentalis John Thomas Howell 1939-8-8 15138 Siskiyou Between Sky High Valley and Marble Valley, Marble Mountains Comment
  CHSC286  Ageratina occidentalis K. Jaekel 1939-7-14 Siskiyou Mt. Shasta. 1767 Comment
  RSA714932  Ageratina occidentalis M. E. Fishbein 2006-8-3 5873 Siskiyou Along Forest Service road 49, 7 miles SSW of Medicine Lake, 0.4miles NE of Snag Hill. 1585 Comment
  UC1199313  Ageratina occidentalis Joseph P. Tracy 1935-8-2 14433 Siskiyou ne side along trail Youngs Peak; North Coast Regions, Youngs Peak 1524 Comment
  CAS-BOT-BC15481  Agoseris X dasycarpa Roxana S. Ferris; Laura Lorraine 1941-8-11 10506 A Siskiyou Slopes above Medicine Lake, Shasta National Forest Comment
  CHSC30240  Agoseris glauca var. monticola M. S. Taylor; J. Prouty, E. Heinitz 1980-8-19 3266 Siskiyou Paint Pot Crater. 1920 Comment
  CHSC69064  Agoseris glauca var. monticola Vernon Oswald; Lowell Ahart 1997-7-28 8797 Siskiyou Schonchin Spring Campground at Medicine Lake. 2057 Comment
  CHSC91257  Agoseris grandiflora Lowell Ahart; John Dittes 2005-6-10 12128 Siskiyou On the south side of a poor dirt road, about 100 yards northwest of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  SEINET11854996  Agoseris grandiflora J. P. Tracy 1949-1 18555 Siskiyou 1.5 mi up Taylor Creek from mouth (branch of E Fork of S Fork Salmon R.) Sec.14 T38N R11W, .. 914 Comment
  JEPS36234  Agoseris grandiflora var. grandiflora W. L. Jepson 1940-6-28 20052 Siskiyou McCloud McCloud 975 Comment
  POM33129  Agoseris heterophylla Geo. D. Butler 1910-5-23 1402 Siskiyou Dry land near Yreka Comment
  UC904779  Agoseris monticola W. Bridge Cooke 1949-8-22 25604 Siskiyou South Gate (Mt. Shasta) Mount Shasta 2590 Comment
  CAS-BOT-BC13189  Agoseris monticola Wm. Bridge Cooke 1938-9-8 11643 Siskiyou Near the South Gate Springs, Mount Shasta 2499 Comment
  RSA142619  Agoseris monticola Philip A. Munz 1960-8-22 24185 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  UC618636  Agrostis alba W. B. Cooke 1938-9-17 11693 Siskiyou Mount Shasta , Horse Camp Comment
  CAS-BOT-BC126994  Agrostis exarata Melissa A. Berry 1957-7-8 s.n. Siskiyou North Fork of the Salmon River, old Aromas Mine road. 609 Comment
  UC203952  Agrostis exarata Geo. D. Butler 1910-6-21 1595 Siskiyou Yreka Creek Comment
  UCD52129  Agrostis exarata Beecher Crampton 1956-8-22 3869 Siskiyou Wagon Camp Road, lower south slopes of Mt. Shasta. 1645 Comment
  RSA603997  Agrostis pallens L. C. Wheeler 1934-8-14 3144 Siskiyou White Mountain: East end. 1767 Comment
  RSA116451  Agrostis scabra A. H. Murphy 1956-8-16 56 W Siskiyou Tangle Blue Lake, Klamath National Forest 1768 Comment
  UC642585  Agrostis scabra Jason Swallen 1939-6-30 13560 Siskiyou MacBride Springs 1524 Comment
  UC618861  Agrostis thurberiana W. Bridge Cooke 1938-9-17 11695 Siskiyou Water Supply Spring, Horse Camp Mount Shasta 2468 Comment
  UCD35443  Agrostis variabilis Beecher Crampton 1956-8-22 3857 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 Comment
  HSC65342  Aira caryophyllea J. P. Smith 1973-5-5 6378 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  CAS-BOT-BC459427  Allium acuminatum Geo. D. Butler 1909-5-26 788 Siskiyou Herzog Hill Comment
  POM110310  Allium acuminatum Geo D. Butler 1910-5-17 1357 Siskiyou Dry hill Yreka. Comment
  CAS-BOT-BC462374  Allium amplectens A. M. Vollmer; L. Beane 1951-5-31 33 Siskiyou On scree near highway, Scott Mountain Comment
  HSC546  Allium campanulatum William J. Ferlatte 1967-7-26 766 Siskiyou NW side of Caribou Mtn. 1829 Comment
  HSC58838  Allium campanulatum Marvin Butler 1971-7-28 221 Siskiyou Near Marv's Meadow 2073 Comment
  CHSC2064  Allium falcifolium E. G. England 1939-6-30 Siskiyou Mt. Eddy. 2286 Comment
  CAS-BOT-BC469234  Allium falcifolium R. C. Barneby 1954-5-16 11529 Siskiyou 6 miles SW of Yreka 975 Comment
  CAS-BOT-BC94475  Allium falcifolium R. C. Wenk 2005-7-19 344 Siskiyou border between Siskiyou and Trinity Counties, National Forest Road 17, parking lot where Pacific Crest Trail crosses 2090 Comment
  POM110166  Allium falcifolium Geo D. Butler 1908-8-6 110 Siskiyou Marble Mountain. 2134 Comment
  CHSC2066  Allium validum V. Holt 1932-6-27 Siskiyou Black Butte Meadow. 1219 Comment
  CAS-BOT-BC478037  Allium validum G. J. Muth 1969-8-12 1385 Siskiyou Second Valley 2225 Comment
  RSA126291  Allium validum I. L. Wiggins 1955-7-21 13440 Siskiyou Rush Creek Trail 2 mi. above Mt. View Ranch. 1098 Comment
  RSA237880  Allium validum Frederick W. Oettinger 1968-8-1 343 Siskiyou South side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  RSA607569  Allotropa virgata Barbara M. Leitner 1996-7-18 96 -001 Siskiyou Medicine Lake Highlands and Adjacent Modoc Plateau. Comment
  JEPS58663  Alnus incana subsp. tenuifolia Geo. D. Butler 1908-8-8 12 Siskiyou West Fork of Wooly Creek; lake at head 1676 Comment
  SBBG25321  Alnus incana subsp. tenuifolia J. M. Tucker 1963-8-17 3739 Siskiyou lower Red Rock Valley, Marble Mountain Wilderness Area 1493 Comment
  UC796443  Alnus incana subsp. tenuifolia Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11766 Siskiyou Forks of Salmon Rd about 6 mi from Etna 1676 Comment
  RSA11791  Alnus rhombifolia Elmer I. Applegate 1923-9-5 3936 Siskiyou Klamath River 12 miles below the Pacific Highway. Comment
  CAS-BOT-BC169643  Alnus rhombifolia W. R. Dudley 1901-8-24 s.n. Siskiyou Salmon? or Rush Creek Comment
  CAS-BOT-BC171245  Alnus viridis subsp. crispa John Thomas Howell 1939-8-3 14956 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC169385  Alnus viridis subsp. sinuata R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-2 159 Siskiyou On both sides of Kidd Creek Comment
  HSC29274  Alnus viridis subsp. sinuata Frederick W. Oettinger 1969-7-14 1012 Siskiyou High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area; along South of Charmaine lake 1921 Comment
  HSC4970  Alnus viridis subsp. sinuata J. O. Sawyer 1968-6-18 192 Siskiyou Above S Russian Creek on W side. 1463 Comment
  UCD77318  Alnus viridis subsp. sinuata Robert E. Preston 2001-6-23 1627 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W se 1/4 of ne 1/4 Section 15 1676 Comment
  UC207707  Alopecurus aequalis Geo. D. Butler 1908-10-16 546 Siskiyou Oro Fino Creek Comment
  CAS-BOT-BC18598  Alyssum alyssoides George Dexter Butler 1910-5-15 1341 Siskiyou Near Yreka. Comment
  CDA3620  Alyssum alyssoides G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2647 Siskiyou Schoolhouse Hill, summit of Gazelle/Callahan Road, 11.3 km east of Callahan. Comment
  CDA3622  Alyssum alyssoides Don Shaw 1984-4-8 Siskiyou Yreka Ager Road, Montague. 0 Comment
  UC1213791  Alyssum alyssoides Jean Langenheim 1957-5-19 4341 Siskiyou along rd. between Gazelle and Callahan Comment
  UC163733  Amaranthus californicus Geo. D. Butler 1908-9-6 133 Siskiyou near Yreka Comment
  HSC68453  Amelanchier alnifolia Maralyn A. Renner 1980-7-4 1401 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  HSC4961  Amelanchier alnifolia var. semiintegrifolia J. O. Sawyer 1968-9-13 707 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  NY418532  Amelanchier gracilis A. A. Heller 1905-6-5 7970 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  HSC29350  Amelanchier pallida Frederick W. Oettinger 1969-7-18 1057 Siskiyou Marble Mtn. Wilderness Area, SW of Upper English Lake 1951 Comment
  HSC4958  Amelanchier pallida J. O. Sawyer 1968-7-23 593 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  JEPS123584  Amelanchier pallida C. S. Campbell, M. Lorusso 2011-5-20 11 -352 Siskiyou Pat Trinca's property, east side of Hilt Valley Comment
  RSA211454  Amelanchier pallida William J. Ferlatte 1966-6-23 149 Siskiyou Between campground and S. Fork of the Salmon River. 1524 Comment
  RSA237651  Amelanchier pallida Frederick W. Oettinger 1969-8-25 1555 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
  RSA59502  Amelanchier pallida E. K. Balls 1950-5-16 14712 Siskiyou By turn off to Caldwell Caves, Lava Beds National Monument. 1463 Comment
  RSA237662  Amelanchier pumila Frederick W. Oettinger 1967-7-22 179 Siskiyou E facing massive granite slope just SSE of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC136885  Amelanchier utahensis Wm. Bridge Cooke 1938-8-5 11434 Siskiyou [MacBride Spring] McBride Springs Road Comment
  CAS-BOT-BC228585  Amelanchier utahensis Peter W. Fritsch; James R. Shevock; Lu Lu 2012-6-19 1927 Siskiyou The Eddys Region, Shasta-Trinity National Forest. Ca. 100 m S of Cedar Lake along road to Cliff Lake, headwaters of the Sacramento River 1744 Comment
  JEPS94380 Image available Amelanchier utahensis Vernon Oswald and Lowell Ahart 1997-7-28 8793 Siskiyou se of Medicine Lake (at Paynes Springs, on walls of Paynes Creek Canyon n of the campground); Paynes Springs, Paynes Creek Canyon 1981 Comment
  UCR17262  Amelanchier utahensis Frank C. Vasek 1975-6-29 750629- 06 Siskiyou Gazelle Summit, 11.6 mi SW of Gazelle Comment
  UCSB23230  Amelanchier utahensis Keefe, Joseph 1967-7-11 Siskiyou along trail to Little Castle Lake, 1.0 mile southeast of Castle Lake, 10 miles south of city of Mt. Shasta 1828 Comment
  UCD119701  Amsinckia intermedia James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-5 6533 Siskiyou Scott Bar along the Scott River. Comment
  CDA40472  Amsinckia menziesii T. C. Fuller 1966-5-26 14714 Siskiyou Quartz Valley, 2 miles west of Greenview. 0 Comment
  RSA0089947  Amsinckia menziesii var. menziesii L. C. Wheeler 1935-5-26 3534 Siskiyou Yreka Creek. Siskiyou Mts. 854 Comment
  CAS-BOT-BC45205  Anaphalis margaritacea William Bridge Cooke 1939-7-10 13863 Siskiyou Mount Shasta. West bank of Mud Creek Canyon. 2133 Comment
  UCD118717  Androsace elongata subsp. acuta Louis C. Wheeler 1935-1 3432 Siskiyou Greenhorn creek, Siskiyou Mts. 944 Comment
  CAS-BOT-BC391803  Anemone deltoidea Roxana S. Ferris; Laura Lorraine 1948-6-12 11774 A Siskiyou About 5.5 miles from Etna on Forks of Salmon Road Comment
  CHSC95118  Anemone deltoidea L. P. Janeway 2006-7-2 8745 Siskiyou Klamath Ranges. Salmon Mountains; un-named creek at the sharp bend in the Music Creek Trailhead Road, 0.6 km south of Music Creek. North-facing slope just above the creek. 1762 Comment
  HSC18011  Anemone deltoidea Dorothy Parker 1949-7-10 346 Siskiyou 2 mi. from summit of Salmon Mtn. Comment
  CAS-BOT-BC391851  Anemone drummondii John Thomas Howell 1939-8-2 14873 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC391856  Anemone drummondii A. A. Heller 1915-7-15 12077 Siskiyou Mt. Eddy 2072 Comment
  CAS-BOT-BC94472  Anemone drummondii R. C. Wenk 2005-7-19 337 Siskiyou Along Pacific Crest Trail, between Deadfall Lakes and pass below Mt. Eddy Comment
  CAS-BOT-BC391848  Anemone drummondii L. R. Short 1933-8-6 105 Siskiyou Klamath National Forest. Marble Mts. 1828 Comment
  SEINET12086506  Anemone drummondii H. P. Chandler 1901-1 1676 Siskiyou Marble Mountain 2438 Comment
  CAS-BOT-BC391932  Anemone lyallii Philip A. Munz 1952-7-2 17891 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1524 Comment
  HSC36954  Anemone lyallii J. P. Smith 1974-5-26 7556 Siskiyou Along FS Rd. 47N03 1524 Comment
  HSC22429  Anemone lyallii J. O. Sawyer 1969-7-11 1318 Siskiyou Slope above S Fork of Sugar Creek 1982 Comment
  POM258360  Anemone multifida C. L. Hitchcock, J. S. Martin 1939-7-9 5315 Siskiyou N side of Black Mt. near Marble Mt. (King's Castle). 2073 Comment
  JEPS17315  Anemone occidentalis unknown 1862-9-16 1419 Siskiyou Mt. Shasta 2438 Comment
  CAS-BOT-BC391981  Anemone occidentalis Joseph P. Tracy 1935-7-30 14386 Siskiyou On N.E. side of peak. Salmon Summit 2103 Comment
  UCD127105  Angelica arguta R. Tofsrud 1948-8-3 s.n. Siskiyou Siskiyou-Del Norte (Oregon) County Line: Summit of Happy Camp, Waldo (Oregon) Road. 1554 Comment
  HSC419  Angelica tomentosa William J. Ferlatte 1966-8-3 244 Siskiyou Big Flat 1524 Comment
  SD109163  Angelica tomentosa var. tomentosa Joseph M. DiTomaso 1980-8-4 1849 Siskiyou Elk Valley Campground, end of Gasquet-Orleans Rd. from Orleans. 1340 Comment
  SD109166  Angelica tomentosa var. tomentosa Joseph M. DiTomaso 1980-8-20 1892 Siskiyou Trail to Caribou Lake in Salmon-Trinity Alps Wilderness Area. 1950 Comment
  UC1190108  Anisocarpus madioides Ira L. Wiggins 1955-7-23 13466 Siskiyou ridge w China Creek (s side of S Fork of Salmon River) 1005 Comment
  UC127735  Antennaria argentea Harley P. Chandler 1901-6-1 1714 Siskiyou at, (ridges and meadows near Marble Mountain) Shackleford Canyon; North Coast Ranges, Marble Mountain 1828 Comment
  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
  HSC92259  Antennaria dimorpha Jennifer Whipple 1976-7-7 1330 Siskiyou N slopes of Mt. Eddy. 2439 Comment
  JEPS22834  Antennaria geyeri A. A. Heller 1938-7-12 15245 Siskiyou 5 mi n Weed (on Highway 49) 1066 Comment
  CAS-BOT-BC58722  Antennaria geyeri Alice Eastwood 1912-7-15 1061 Siskiyou Near McCloud Comment
  HSC21992  Antennaria media J. O. Sawyer 1968-7-22 558 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  HSC61191  Antennaria racemosa Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  UC1190277  Antennaria rosea Ira L. Wiggins 1955-7-27 13536 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  RSA211485  Antennaria rosea William J. Ferlatte 1966-6-22 80 Siskiyou Josephine Lake basin; Trinity Alps. 1677 Comment
  RSA238707  Antennaria rosea Frederick W. Oettinger, J. Morrison 1967-8-17 277 Siskiyou Common on Shasta Ridge, approx. 0.1 mi. SSW of Diamond Lake; e-facing slope amid granite boulders near woods edge. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2098 Comment
  CHSC69066  Antennaria rosea subsp. confinis Vernon H. Oswald; Lowell Ahart 1997-7-28 8789 Siskiyou Southeast of Medicine Lake at Paynes Springs. On the floor of Paynes Creek Canyon north of the campground. 1981 Comment
  HSC21985  Antennaria rosea subsp. rosea J. O. Sawyer 1969-7-24 1481 Siskiyou NE facing seep SW of Sugar Lake 1890 Comment
  HSC77074  Antennaria rosea subsp. rosea K. T. Stillman 1976-6-26 108 Siskiyou Marble Mountain Wilderness Area 2073 Comment
  HSC102657  Apera interrupta J. P. Smith 2009-6-1 12615 Siskiyou Road to Tenant. Comment
  JEPS80555  Apocynum androsaemifolium Gilbert Muth 1965-8-6 191 Siskiyou trail backside of Black Mt.; Marble Mt. Wilderness Area, Black Mt. 1920 Comment
  UC22902  Apocynum androsaemifolium W. H. Brewer 1862-9-16 1407 Siskiyou Mt. Shasta Comment
  HSC26736  Apocynum androsaemifolium J. O. Sawyer 1969-8-18 2019 Siskiyou NW facing slope above Duck Lake Creek. 1616 Comment
  CAS-BOT-BC395153  Aquilegia formosa Wm. Bridge Cooke 1938-7-29 11424 Siskiyou Wagon Camp, Mount Shasta Comment
  CAS-BOT-BC394985  Aquilegia formosa Geo. D. Butler 1909-6-23 902 Siskiyou Goosenest Comment
  SEINET10536307  Aquilegia formosa Linstedt 1984-5-27 LINSTEDT 68 Siskiyou T44n,r11w,sec.26, indian scotty campground, found on n-facing slope near Ceanothus and mitella. Corolla orange with yellow center 701 Comment
  HSC69025  Aquilegia formosa var. formosa Maralyn A. Renner 1980-7-28 2192 Siskiyou E spur of Kangaroo Mtn., near ridge 1890 Comment
  RSA0125747  Arabis breweri L. R. Heckard, L. Constance, Robert Ornduff 1969-6-25 2319 Siskiyou Off Gilman Road, 15 miles from U.S. Hwy 99 on northern side of the McCloud River arm of Lake Shasta. 488 Comment
  HSC22397  Arabis divaricarpa J. O. Sawyer 1969-7-24 1469 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  HSC22409  Arabis divaricarpa var. interposita J. O. Sawyer 1969-8-1 1676 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  UC1408892  Arabis glabra F. W. Oettinger and R. F. Thorne 1969-8-5 1309 Siskiyou Abbott's Upper Cabin, w Siskiyou County Salmon Mountains 1524 Comment
  UC61173  Arabis glabra W. A. Setchell, C. C. Dobie 1902-7-14 Siskiyou Sisson Mount Shasta Comment
  RSA0125767  Arabis glabra Frederick W. Oettinger, R. F. Thorne 1969-8-9 1309 Siskiyou Abbott s Upper Cabin. Salmon Mts. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1524 Comment
  UC1483493  Arabis holboellii var. pinetorum J. Sawyer and J. Cole 1980-7-22 3916 Siskiyou nw slopes Cedar Mtn.; Klamath National Forest, Bray Quad. 1524 Comment
  HSC67819  Arabis holboellii var. retrofracta J. O. Sawyer, J. Cole 1980-7-20 3775 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  POM94625  Arabis holboellii var. retrofracta Geo. D. Butler 1910-7-8 1663 Siskiyou Log Lake, Shackleford Creek. 1220 Comment
  RSA78819  Arabis holboellii var. retrofracta P. A. Munz 1952-7-2 17897 Siskiyou Baldy Mountain ca. 6 miles west (by air) of Happy Camp. 1738 Comment
  CAS-BOT-BC16715  Arabis modesta Lincoln Constance; Reed Clark Rollins 1942-5-13 2911 Siskiyou Klamath-Siskiyou Region. Scott River 2 miles northwest of Scott Bar. 487 Comment
  HSC90605  Arabis platysperma var. howellii Jennifer Whipple 1977-7-22 2057 Siskiyou Dale Creek drainage on N face of Mt. Eddy. 2195 Comment
  HSC237  Arabis puberula William J. Ferlatte 1967-7-6 608 Siskiyou Dorleska Summit 2134 Comment
  HSC46181  Arabis subpinnatifida Jennifer Whipple 1977-4-30 1881 Siskiyou Scott Valley near Weston Gulch on open hillsides 854 Comment
  UC165757  Arabis subpinnatifida Geo. D. Butler 1910-4-16 1181 Siskiyou hills near Yreka Comment
  HSC90611  Arabis suffrutescens Jennifer Whipple 1978-7-20 2363 Siskiyou E and S facing slopes draining into the N Fork of the Sacramento River 2439 Comment
  RSA138225  Aralia californica P. C. Everett, E. K. Balls 1959-10-24 23942 Siskiyou 6 mi. W from Red Bank F. S. Camp, on road to Somesbar from Sawyers Bar Comment
  JEPS49008  Arceuthobium Geo. D. Butler 1908-8-26 273 Siskiyou Russian Creek 1524 Comment
  SEINET2471280  Arceuthobium abietinum R. L. Mathiasen 2007-8-9 2007 -33 Siskiyou Ca. 9.6 km from Stewart Hot Springs on forest road 17 1820 Comment
  SEINET2471283  Arceuthobium abietinum R. L. Mathiasen 2007-8-14 2007 -36 Siskiyou At jct. of Greyback Rd. and rd. to Kelly Lake 1345 Comment
  SEINET2471286  Arceuthobium abietinum R. L. Mathiasen 2007-9-15 2007 -39 Siskiyou 6.4 km W. of McCloud on St. Rte. 89 at turn to Mt. Shasta Ski Park 1340 Comment
  RSA608669  Arceuthobium abietinum Louis C. Wheeler 1963-9-11 8384 Siskiyou Siskiyou Mountains: Dillon Creek, just N of hanging pond NE of Sawtooth Mountain. Comment
  CAS-BOT-BC407791  Arceuthobium campylopodum William Bridge Cooke 1938-9-2 11593 Siskiyou Sisson Southern Trail, Mount Shasta 1371 Comment
  SEINET3239865  Arceuthobium monticola R. L. Mathiasen 2003-1 2003 -64 Siskiyou 1.4 km W of Cook and Green Pass. 1640 Comment
  SEINET2140127  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2007-1 2007 -53 Siskiyou 1 km SE. of trail to Duck Lake on trail to Eaton Lake, Russian Peak Wilderness. 1730 Comment
  CAS-BOT-BC39991  Arctostaphylos nevadensis Alice Eastwood 1921-7-24 10764 Siskiyou Castle Lake Comment
  HSC742  Arctostaphylos nevadensis William J. Ferlatte 1967-7-8 669 Siskiyou Near Le Roy Mine 2073 Comment
  HSC76972  Arctostaphylos nevadensis K. T. Stillman 1976-6-25 46 Siskiyou Marble Mtn. Wilderness Area 1829 Comment
  HSC92274  Arctostaphylos nevadensis Jennifer Whipple 1976-6-11 968 Siskiyou Wagon Creek drainage on the E face of Mount Eddy 2195 Comment
  UCD59182  Arctostaphylos nevadensis Steve Edwards; Wayne Roderick 1983-7-10 102 Siskiyou On Cook and Green Pass east of the pass. 1524 Comment
  UCR179177  Arctostaphylos nevadensis Robert E. Preston 2001-6-23 1560 Siskiyou Rainbow Mountain and Vicinity, Klamath National Forest, north slope of Rainbow Mtn. 1829 Comment
  CAS-BOT-BC46457  Arctostaphylos patula John Thomas Howell 1939-8-3 15021 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  JEPS101962  Arctostaphylos patula Dean W. Taylor 1999-6-9 17229 Siskiyou Siskiyou Mountains, ca. 5 air miles WSW Hilt, very headwaters of South Fork Hungry Creek 1371 Comment
  LA42233  Arctostaphylos patula William Bridge Cooke; 1939-8-4 sn Siskiyou Mount Shasta, along the Sisson Southern Trail 1523 Comment
  POM77330  Arctostaphylos patula Geo D. Butler 1909-3-28 586 Siskiyou Hills near Yreka. Comment
  UC1005654  Arctostaphylos patula Frank W. Gould 1940-5-15 1245 Siskiyou n slope Goosenest Mountain 1524 Comment
  UC410799  Arctostaphylos patula Mrs. Eric Anderson 1923-4-19 Siskiyou Shasta Springs Comment
  UCSB15822  Arctostaphylos patula Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Range 1127 Comment
  CDA38690  Arctostaphylos patula T. C. Fuller 1962-6-13 8991 Siskiyou Road to Medicine Lake, 3.2 miles north of Bartle. 0 Comment
  POM367405  Arctostaphylos patula M. B. Dunkle 1944-8-25 9181 Siskiyou Siskiyou National Forest; Coastal Northern California. Comment
  SEINET11989685  Arctostaphylos patula subsp. patula R. Raiche, Radnik, K. 1982-1 20779 Siskiyou Humbug Rd near Yreka 914 Comment
  HSC6087  Arctostaphylos viscida G. L. Clifton, Griswold 1979-6-27 6087 Siskiyou Near Shackleford Creek, close to the town of Greenview 1342 Comment
  RSA15600  Arctostaphylos viscida subsp. viscida C. B. Wolf 1927-8-26 1107 Siskiyou Klamath River, 8 mi. above Happy Camp. Comment
  POM208262  Arenaria serpyllifolia L. C. Wheeler 1934-6-4 2641 Siskiyou Ridge E Negro Gulch off Klamath River; Siskiyou Mts. 1067 Comment
  RSA78690  Arnica cernua Philip A. Munz 1952-7-2 17879 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1493 Comment
  CAS-BOT-BC82552  Arnica discoidea Doris K. Kildale 1929-7-20 8628 Siskiyou trail up South [Frk] Fork of Indian Creek to Elk Lick 1524 Comment
  HSC45165  Arnica discoidea J. O. Sawyer, E. Cope 1977-6-19 2944 Siskiyou Clear Creek Trail between West Fork and Preston Creek 854 Comment
  UC165318  Arnica discoidea Geo. D. Butler 1908-8-26 322 Siskiyou Old trail between Taylor and Cow Creeks Comment
  HSC22130  Arnica diversifolia J. O. Sawyer 1969-7-18 1365 Siskiyou E of Waterdog Lake 2012 Comment
  HSC62618  Arnica diversifolia Al Hobart 1967-8-17 Siskiyou Young's Valley Comment
  HSC22160  Arnica latifolia J. O. Sawyer 1969-6-12 930 Siskiyou Along trail to Duck Lake 1799 Comment
  SEINET516276  Arnica longifolia Vernon H. Oswald 1997-7-28 8790 Siskiyou SE of Medicine Lake at Paynes Springs. 1981 Comment
  CAS-BOT-BC82690  Arnica longifolia Bassett Maguire 1939-8-10 13864 Siskiyou along the wall of Mud Creek Canyon 2286 Comment
  UC1408807  Arnica mollis Robert F. Thorne and Fred Oettinger 1969-8-10 38974 Siskiyou dryer portion of meadows, along small creek in forest Panther Creek Meadows; Mt. Shasta National Forest, Mt. Shasta, Panther Creek Meadow 2194 Comment
  JEPS105131  Arnica ovata Dean W. Taylor 1996-7-11 15783 Siskiyou Scott Mountains; West Fork Parks Creek (about 15 air miles west of Weed & 1 air mile west of Stewart Springs); Shasta Trinity National Forests 1328 Comment
  HSC77111  Artemisia arbuscula subsp. thermopola K. T. Stillman 1976-6-25 97 Siskiyou Marble Mtn. Wilderness Area, between Marble Gap and Elk Valley Trail Comment
  CAS-BOT-BC90474  Artemisia douglasiana A. A. Heller 1914-8-25 11710 Siskiyou Along the railroad embankment near Deetz Station opposite Black Butte 1158 Comment
  CHSC71849  Artemisia douglasiana Vernon H. Oswald; Lowell Ahart 1998-9-8 9602 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir. 1112 Comment
  JEPS106483  Artemisia douglasiana J. K. Nelson 2004-8-29 2004 -95 Siskiyou S side Mount Shasta, at unnamed springs W of Mud Creek Dam, along Road 31 1584 Comment
  CAS-BOT-BC90473  Artemisia douglasiana David Keck 1938-8-19 11509 Siskiyou Howard, along overflow stream from Mount Shasta City water resevoir 1219 Comment
  POM67289  Artemisia douglasiana Geo. D. Butler 1910-7-29 1798 Siskiyou Yreka Comment
  UC1190169  Artemisia douglasiana Ira L. Wiggins 1955-7-26 13511 Siskiyou just above mouth of Blind Horse Creek (on river banks); South Fork Salmon River 886 Comment
  UC933414  Artemisia douglasiana Annie Alexander and Louise Kellogg 1948-9-6 5585 Siskiyou South Fork Salmon River Comment
  UC630385  Artemisia norvegica subsp. saxatilis Annetta Carter 1939-8-21 1471 Siskiyou steep slope above se end Taylor Lake (12 mi sw of Etna); Salmon Mountains 2194 Comment
  UC618749  Artemisia tridentata subsp. vaseyana W. Bridge Cooke 1938-8-24 11584 Siskiyou n slope North Gate Road; Mount Shasta Comment
  CAS-BOT-BC447707  Aruncus dioicus var. vulgaris Alice Eastwood 1921-7-30 s.n. Siskiyou Soda Creek Comment
  CAS-BOT-BC400586  Asarum caudatum Alice Eastwood 1912-7-17 1174 Siskiyou Sisson Comment
  RSA416094  Asarum caudatum M. B. Dunkle 1945-1 s.n. Siskiyou Klamath National Forest; Marble Mountains, Black Marble ridge [?]. Comment
  RSA598718  Asarum caudatum R. S. Woglum 1938-8-28 2077 Siskiyou Siskiyou Mountains, Bear Basin. Comment
  CAS-BOT-BC400702  Asarum hartwegii Wm. Bridge Cooke 1938-6-24 11105 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  CAS-BOT-BC400700  Asarum hartwegii A. A. Heller 1905-6-5 7989 Siskiyou Plateau above Shasta Springs Comment
  CHSC71561  Asclepias speciosa Vernon H. Oswald; Lowell Ahart 1998-8-3 9413 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 3.9 mi southeast of Gazelle-Callahan Rd. at its intersection with USFS 41N10. 1554 Comment
  UC164150  Asclepias speciosa Geo. D. Butler 1910-6-8 1557 Siskiyou near Yreka Comment
  CDA39832  Asclepias speciosa Gordon Leppig, T. LaBanca 1998-7-11 925 Siskiyou French Creek Road. Comment
  CAS-BOT-BC69553  Aspidotis densa Ira L. Wiggins 1950-5-28 12379 Siskiyou Just above Grouse Lake (head-waters of Grouse Creek). 1828 Comment
  SEINET3868735  Aspidotis densa David B. Dunn, Conrad; LeDoux 1973-6-3 20652 Siskiyou Vicinity of the Campground on the Salmon River, 8.3 mi W of Cecilville.; 0 Comment
  UCD21469  Aspidotis densa Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1209 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Near shore of Upper Gray Rock Lake. 1912 Comment
  CAS-BOT-BC69554  Aspidotis densa Louis C. Wheeler 1934-6-28 2814 Siskiyou Little Soda Cr., Klamath Forest. 1432 Comment
  SEINET5338519  Aspidotis densa M. J. Williams 1967-9-2 s.n. Siskiyou Cabin Meadow 1829 Comment
  UC42607  Aspidotis densa W. H. Brewer 1863-9-9 1360 Siskiyou Castle Rocks near Mt Shasta Comment
  RSA238790  Aster alpigenus Frederick W. Oettinger 1969-8-4 1180 Siskiyou In wet, boggy meadow N of Tobacco lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  CAS-BOT-BC178810  Astragalus californicus R. C. Barneby 1954-5-16 11510 Siskiyou Klamath R. canyon 10 1/2 miles below Klamath River P.O. 472 Comment
  CAS-BOT-BC178812  Astragalus californicus R. C. Barneby; H. D. Ripley 1948-7-5 9633 Siskiyou 2 miles SW of Yreka 853 Comment
  HSC41081  Astragalus californicus Rich White 1977-5-21 71 Siskiyou Junction of Miners Creek Rd. and Rd. 8 , 5.5 mi. W of Callahan. Comment
  POM24211  Astragalus californicus Geo. D. Butler 1910-5-4 1284 Siskiyou Hamburg Mountain 1067 Comment
  SEINET5323336  Astragalus californicus Unknown 1909-5-8 593 Siskiyou Humbug Road and McNutty's Field Comment
  JEPS94893  Astragalus curvicarpus var. curvicarpus Vernon H. Oswald and Lowell Ahart 1998-6-11 9183 Siskiyou ne of Weed (Shasta National Forest plantation on w side of Highway 97 2.2 mi ne of Lake Shastina-Big Springs Road); Shasta National Forest, Highway 97 1066 Comment
  UC1584588  Astragalus inversus Dean Wm. Taylor with Rexford E. Palmer 1988-6-23 9865 Siskiyou ca 1 mi se Adobe Flat (ca 4 mi n of Timbered Crater); Fall River Mills Quad., Modoc Plateau, n of Timbered Crater 1097 Comment
  CDA26744  Astragalus purshii Bob Hunter 1948-7-14 Siskiyou Yreka. 0 Comment
  HSC14529  Astragalus purshii var. lagopinus R. C. Wunner 1965-6-10 134 Siskiyou Lava Beds N. M., Caldwell Crater E inner slope. 1524 Comment
  HSC76923  Astragalus purshii var. lectulus K. T. Stillman 1976-6-26 137 Siskiyou Marble Mountain Wilderness Area, Kings Castle. 2134 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
  HSC82565  Astragalus purshii var. lectulus Thomas W. Nelson, Jane P. Nelson 1979-5-26 4725 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  CAS-BOT-BC198714  Astragalus whitneyi var. siskiyouensis Mrs. H. C. Cantelow 1936-5-21 s.n. Siskiyou 2 miles up Scott Mt. grade. Comment
  HSC23598  Athyrium distentifolium var. americanum J. O. Sawyer 1969-8-2 1717 Siskiyou E facing slope SW of Little Duck Lake 2241 Comment
  UC1408833  Athyrium distentifolium var. americanum Frederick W. Oettinger 1969-8-22 1489 Siskiyou se bank Horse Range lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 1828 Comment
  HSC29368  Athyrium distentifolium var. americanum Frederick W. Oettinger 1969-8-22 1489 Siskiyou SE bank of Horse Range Lake 1829 Comment
  RSA237515  Athyrium filix-femina subsp. cyclosorum Frederick W. Oettinger 1967-8-21 315 Siskiyou Outlet stream of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA577149  Athyrium filix-femina subsp. cyclosorum L. C. Wheeler 1934-8-10 3094 Siskiyou Siskiyou Mountains, Jaynes Canyon 1372 Comment
  CAS-BOT-BC66187  Athyrium filix-femina var. cyclosorum Grant 1902-9-15 5260 Siskiyou Shasta Springs Comment
  HSC22158  Athyrium filix-femina var. cyclosorum J. O. Sawyer 1969-7-23 1176 Siskiyou Along road near Horse Range Creek. 1341 Comment
  UC1333324  Athyrium filix-femina var. cyclosorum Dorothy Parker 1949-6-30 Siskiyou stream that empties into Etna Creek; Salmon Mts 1176 Comment
  CAS-BOT-BC17618  Athysanus pusillus Lincoln Constance; Reed Clark Rollins 1942-5-13 2916 Siskiyou Klamath-Siskiyou Region. Scott River 10 miles southwest of Scott Bar. 609 Comment
  HSC4360  Atriplex rosea R. C. Wunner 1965-8-14 420 Siskiyou Lava Beds National Monument, Hovey Point. 1220 Comment
  UC165278  Balsamorhiza deltoidea Geo. D. Butler 1910-4-16 1180 Siskiyou Klamath Hills Comment
  CAS-BOT-BC106545  Balsamorhiza deltoidea Geo. D. Butler 1909-5-1 702 Siskiyou Shasta River Hills Comment
  HSC43816  Balsamorhiza deltoidea M. A. Baker 1977-5-22 327 Siskiyou One mile west of Hwy. 3, on the road to Little Duck and Sugar Lakes Comment
  HSC96813  Balsamorhiza deltoidea S. Lyon, J. McIntire 2006-6-25 29 Siskiyou 200 ft. W of intersection of FS 39N14 and 39N04 1616 Comment
  CDA10485  Balsamorhiza hookeri F. D. Horn 1978-4-27 Siskiyou End of Litchens Road, Montague. 0 Comment
  CAS-BOT-BC100054  Balsamorhiza lanata Richard R. Halse 1989-5-6 3818 Siskiyou Along Old Highway 99, 3.2 to 6.2 miles south of Gazelle, or 1.5 miles north of its junction with Old Stage Road 912 Comment
  HSC103648  Balsamorhiza sericea Thomas W. Nelson, Jane Nelson 1985-6-19 7818 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  CAS-BOT-BC16689  Barbarea orthoceras Doris K. Kildale 1929-7-20 8700 Siskiyou Raspberry Lake. South Fork India[n] Creek. Comment
  JEPS82697  Berberis aquifolium var. aquifolium Steve Edwards 1984-6-7 Siskiyou sw Stewart Springs (above Cabin Meadow); South China Mt 2286 Comment
  UCD95064  Berberis aquifolium var. aquifolium Jeff Kennedy 1994-4-24 2 Siskiyou Four-acre private parcel, 1.1 air miles W of the Ctrl. Mt. Shasta exit from Interstate 5; 0.5 air-mile W of Mt. Shasta State Fish Hatchery; S of W end of Melo Rd. (off of Old Stage Rd.); W of and adj. to Wagon Creek; E of ranch w/ lg. stock pond. 1042 Comment
  UCD95066  Berberis aquifolium var. aquifolium Sandra L. Holloway 1963-5-19 55 Siskiyou 2 miles E of forks of Big Humbug Creek, W of Hawkinsville. 1066 Comment
  UC165953  Berberis aquifolium var. dictyota Geo. D. Butler 1909-4-22 591 Siskiyou along creek near Yreka Comment
  CHSC10132  Berberis nervosa Geo. D. Butler 1908-8-22 Siskiyou Eldredge's [looks like 'Eeldredgis' on label] Corral Russian Creek. Comment
Read comments
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  JEPS86077  Berberis nervosa Wayne Roderick 1966-6-26 Siskiyou Cook and Green Pass area 1371 Comment
  UC164979  Berberis nervosa Geo. D. Butler 1908-8-22 540 Siskiyou Eldridges' Corral, Russian Creek Eldridges' Corral Comment
  CAS-BOT-BC75917  Berberis piperiana Doris K. Kildale 1928-8-18 6428 Siskiyou North Fork Salmon River at Finley Camp. Comment
  CAS-BOT-BC76000  Berberis pumila T. H. Harris 1951-6-1 s.n. Siskiyou Happy Camp. 1524 Comment
  CAS-BOT-BC169474  Betula occidentalis A. A. Heller 1918-7-16 13036 Siskiyou Mt. Eddy, W of Sisson, on open southeastern gravelly and stony slope 1524 Comment
  CHSC78497  Betula occidentalis Vernon H. Oswald 2000-8-28 9952 Siskiyou Kangaroo Lake Road ca. 0.5 mi north of the road to Rock Fence Creek Lake. 1487 Comment
  JEPS11902  Bidens cernua Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-13 4801 Siskiyou about 0.8 mi s of Fort Jones; Scott Valley 822 Comment
  HSC27220  Bidens frondosa J. P. Smith, J. O. Sawyer 1971-9-18 4793 Siskiyou Hwy. 3, between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  CHSC88093  Bistorta bistortoides Jenny Marr 1993-7-1 103 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  HSC86546  Bistorta bistortoides D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar, vicinity of Haypress Meadows 1372 Comment
  HSC77073  Bistorta bistortoides K. T. Stillman 1976-6-26 120 Siskiyou Marble Mtn. Wilderness Area, near Bear Lake. 1829 Comment
  CAS-BOT-BC127903  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek, Siskiyou Mts. 914 Comment
  CHSC118591  Blepharipappus scaber Richard R. Halse 2016-5-29 9717 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  HSC68068  Blepharipappus scaber J. P. Smith 1976-5-22 8793 Siskiyou Near County Dump in Scott Valley between Callahan and Etna 1037 Comment
  CAS-BOT-BC13809  Boechera howellii William Bridge Cooke 1941-8-14 16177 Siskiyou Mount Shasta. Above Horse Camp. 2743 Comment
  JEPS53088  Boechera pauciflora Geo. D. Butler 1909-5-8 723 Siskiyou near Yreka Comment
  UC1783914  Boechera pauciflora Geo. D. Butler 1908-8-4 125 Siskiyou head of Shackelford Creek 1676 Comment
  CAS-BOT-BC14671  Boechera rectissima Marion Ownbey; Fred G. Meyer 1940-7-3 2161 Siskiyou 5 miles northwest of McCloud. Comment
  CAS-BOT-BC25413  Boechera retrofracta George Dexter Butler 1910-7-8 1663 Siskiyou Log Lake-Shackleford Creek. 1219 Comment
  CAS-BOT-BC25414  Boechera retrofracta George Dexter Butler 1910-7-8 1663 Siskiyou Log Lake, Shackleford Creek. 1219 Comment
  CAS-BOT-BC25429  Boechera retrofracta J. H. Thomas 1954-5-13 4131 Siskiyou Klamath National Forest. Salmon Mountains. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. 1066 Comment
  UC1409354  Boechera retrofracta Frederick W. Oettinger 1969-7-10 961 Siskiyou Southwest of Upper English Peak; Salmon Mountains, Marble Mountain Wilderness Area, English Peak. 1920 Comment
  CAS-BOT-BC410948  Boechera sparsiflora L. E. Smith 1913-5-28 309 Siskiyou Yreka Comment
  UC1159805  Bolboschoenus maritimus Edward J. O'Neill 1965-9-18 Siskiyou Tulelake Fish and Game Wildlife Refuge Comment
  HSC22121  Boschniakia strobilacea J. O. Sawyer 1969-7-3 1058 Siskiyou SE facing upper slope above Horse Range Creek 1524 Comment
  CAS-BOT-BC418452  Boykinia major Ira L. Wiggins 1955-7-22 13447 Siskiyou S Fork of Salmon River, 9.5 mi. above Cecilville 1066 Comment
  CAS-BOT-BC418420  Boykinia occidentalis Doris K. Kildale 1928-8-1 6188 Siskiyou 1/2 miles north of Brookings Comment
  UC375291  Brassica rapa Geo. D. Butler 1908-6-20 1053 Siskiyou yards around Yreka Yreka Comment
  CAS-BOT-BC172821  Brickellia grandiflora J. K. Nelson; J. R. Nelson; Soren Nelson 2004-8-29 2004 -096 Siskiyou South side Mt. Shasta, south side of McKenzie Butte, along Road 31 1584 Comment
  CAS-BOT-BC127717  Brickellia greenei Peter Raven 1956-9-5 10462 Siskiyou North Fork of Sacramento River 1828 Comment
  UCD57493  Bromus briziformis Mr. Roseman 1913-1 5 Siskiyou Butte Valley. Comment
  CDA1788  Bromus briziformis Don Shaw 1971-9-7 Siskiyou Ball Mountain Road, 12 miles east of Montague. 0 Comment
  SEINET7297953 Image available Bromus briziformis A. A. Heller 1905-1 1437 Siskiyou Gazelle Comment
  UCD58256  Bromus carinatus R. Tofsrud 1948-8-1 s.n. Siskiyou From Happy Camp to O'Brien, Oregon. Comment
  CHSC61559  Bromus carinatus var. carinatus L. P. Janeway 1983-9-11 683 Siskiyou Siskiyou Mountains; at Poker Flat. In the middle of the lower part of the meadow. 1524 Comment
  JEPS69204  Bromus hordeaceus Geo. D. Butler 1909-5-26 817 Siskiyou along road near Yreka Comment
  UCD58811  Bromus hordeaceus var. intermedius Geo. D. Butler 1909-6-5 825 Siskiyou Meadows near Yreka. Comment
  CAS-BOT-BC155279  Bromus inermis Hans Karstensson; Ethel Hyde 1939-7-26 s.n. Siskiyou Near Tule Lake, northeast corner of Siskiyou county. 1280 Comment
  RSA239067  Bromus marginatus Frederick W. Oettinger 1969-8-13 1351 Siskiyou Southeast ridge of English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  HSC22857  Bromus orcuttianus J. O. Sawyer 1969-7-9 1212 Siskiyou Near C.C.C. road, N of Sugar Creek 1433 Comment
  UCD59249  Bromus orcuttianus A. A. Heller 1915-7-18 12124 Siskiyou Metcalf's ranch, base of Mt. Eddy. Comment
  CAS-BOT-BC162006  Bromus racemosus John Thomas Howell 1952-6-14 28350 A Siskiyou East of Etna on Fort Jones-Callahan Road. Comment
  CAS-BOT-BC185603  Bromus tectorum Lewis S. Rose 1945-6-18 45075 Siskiyou Horse Creek & Klamath River. 502 Comment
  HSC100203  Bromus tectorum J. P. Smith, , J. O. Sawyer, & R. J. Cole 2011-5-22 13175 Siskiyou Along road from Cecilville to Forks of Salmon 743 Comment
  HSC43112  Bromus tectorum Maralyn O'Meara 1974-5-25 365 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC909361  Bromus tectorum Ira L. Wiggins 1950-5-27 12356 Siskiyou east fork of Scott River, at Callahan Ranger Station Callahan Ranger Station; Scott River, Callahan, Callahan Ranger Station 975 Comment
  HSC103034  Bromus tectorum J. P. Smith 2014-6-7 13892 Siskiyou Etna Comment
  RSA60714  Bromus tectorum var. glabratus I. L. Wiggins 1950-5-27 12356 Siskiyou Banks of East Fork of Scott River at Callahan Ranger Station, Callahan. 976 Comment
  HSC101479  Bromus vulgaris J. P. Smith, J. O. Sawyer 2011-7-21 13038 Siskiyou Near Dillon Camp 1358 Comment
  RSA239003  Calamagrostis breweri Frederick W. Oettinger 1968-8-2 354 Siskiyou South end of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  CAS-BOT-BC185255  Calamagrostis koelerioides Geo. D. Butler 1910-7-12 1746 Siskiyou Shackleford Creek. 1371 Comment
  CAS-BOT-BC185263  Calamagrostis koelerioides Doris K. Kildale 1928-8-20 6621 Siskiyou Hancock Lookout, on trail to Marble Mountain. 2151 Comment
  CAS-BOT-BC185271  Calamagrostis koelerioides Julie Kierstead Nelson; Rhonda Posey; Ross Olson 2007-8-1 2007 -030 Siskiyou The Eddys, west of Mount Shasta. East of Toad Lake Trailhead, terminus of Forest Service Road 40N64, headwaters of Middle FOrk of upper Sacramento River. 2051 Comment
  SEINET8198343  Calamagrostis koelerioides D. W. Taylor 2002-7-29 18284 b Siskiyou Gumboot Lake, headwaters South Fork Sacramento River 1951 Comment
  UC1265354  Calamagrostis koelerioides F. W. Oettinger 1968-9-7 771 Siskiyou n.w. slope on ridge above Tobacco lake (Salmon Mts.); W. Siskiyou Co., Salmon Mts. 2011 Comment
  UCD56963  Calamagrostis sesquiflora Peter Kamb 1949-8-25 1487 Siskiyou southwest slope of Mt. Shasta above Horse Camp. 2621 Comment
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Apr 1 2012
  CAS-BOT-BC112320  Calliscirpus criniger Ira L. Wiggins 1955-7-27 13553 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area. 2042 Comment
  CAS-BOT-BC112322  Calliscirpus criniger Doris K. Kildale 1929-7-21 8739 Siskiyou Elk Lick, South Fork of Indian Creek 1219 Comment
  SEINET7584065 Image available Calliscirpus criniger Frederick W. Oettinger 1968-8-2 350 Siskiyou Salmon Mountains, vicinity of English Peak Marble Moutain Wilderness Area, near Diamond Lake. 2073 Comment
  CAS-BOT-BC85750  Calocedrus decurrens Peter H. Raven 1956-9-5 10467 Siskiyou North Fork of Sacramento River 1584 Comment
  CAS-BOT-BC85774  Calocedrus decurrens David D. Keck 1949-7-20 6371 Siskiyou 3 miles N.E. of Ft. Jones on westerly slope of mountians. Comment
  RSA68949  Calochortus coeruleus A. E. Culbertson 1943-6-19 9 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi SW of Mt. Shasta on N side of a 6600 eastern spur of Trinity Mtns., 2000 above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  JEPS109666  Calochortus elegans Dean W. Taylor 2002-6-29 18206 Siskiyou ridge ca. 0.5 mile SW of Kanagroo Lake, Scott Mountains 1981 Comment
  JEPS84241  Calochortus elegans L. R. Heckard with J. Hickman et al. 1986-7-17 6470 Siskiyou ca 5 mi n Seiad Valley (town) (s of Lily Pad Lake, trail up Kangaroo Peak, wall of e ridge); Kangaroo Peak 1800 Comment
  CDA39291  Calochortus elegans var. nanus D. Osterhandt & D. H. Shaw 1978-3-31 s.n. Siskiyou Along road between Forks of Salmon and Somes Bar, southwestern part of county. 0 Comment
  CAS-BOT-BC26265  Calochortus elegans var. oreophilus Marion Ownbey; Ruth P. Ownbey 1938-7-19 1748 Siskiyou 2.5 miles northeast of Dry Lake Lookout, summit of Siskiyou Mts. Comment
  CAS-BOT-BC132415  Calochortus greenei F. T. Callahan II 1989-9-1 s.n. Siskiyou NNW. of Iron Gate Res. 609 Comment
  SEINET12047246  Calochortus longebarbatus E. F. Heinitz 1980-1 27 Siskiyou at Tom Young Flat ca 2 mi NW of Pondosa 1292 Comment
  UC1170099  Calochortus macrocarpus unknown 1956-7-16 30302 Siskiyou n side Mount Shasta (along U.S. Hwy 97, above hwy) 1219 Comment
  SBBG22938  Calochortus nudus H. and M. Dearing 1939-6-30 3754 Siskiyou near Callahan, Trinity Alps Rd Comment
  UC1282007  Calochortus nudus Louise Kellogg Aug 5 1953-Aug 7 1953 102 Siskiyou 1 mi n Cory Peak, Klamath National Forest (11 mi e of Callahan on road to Gazelle, then 5.8 mi s on logging road); Scott Mountains, Cabin Meadow 1844 Comment
  CAS-BOT-BC494016  Calochortus tolmiei Gilbert Muth 1965-8-6 s.n. Siskiyou Backside of Blk. Mt. 2072 Comment
  RSA120213  Calochortus uniflorus S. S. Tillett 1956-7-11 693 Siskiyou just N of campground, Scott Mtn divide, Siskiyou - Trinity County line, 8 mile SE of Callahan. 1631 Comment
  CAS-BOT-BC181509  Caltha leptosepala J. C. Chastain 1917-6-1 s.n. Siskiyou North fork, Trinity River Comment
  HSC36895  Caltha leptosepala J. P. Smith 1974-5-26 7538 Siskiyou Chandler Glade on FS 47N03 1768 Comment
  RSA789268  Calycadenia truncata R. L. Carr 1986-9-28 2160 Siskiyou 0.4 miles east of Somesbar on Salmon River Road. 195 Comment
  POM208289  Calycadenia truncata subsp. scabrella L. C. Wheeler 1934-6-26 2787 Siskiyou Camp Lowe, Klamath River, Siskiyou Mts 762 Comment
  HSC64321  Calyptridium monospermum J. P. Smith, Steve Selva 1970-8-8 4564 Siskiyou Comment
  JEPS80573  Calyptridium umbellatum Gilbert Muth 1965-8-3 155 Siskiyou Marble Valley, Marble Mountain Wilderness Area Marble Valley; , Marble Mountain Wilderness Area 1798 Comment
  UC618664  Calyptridium umbellatum W. Bridge Cooke 1938-8-21 11538 Siskiyou Mount Shasta, Horse Camp Flats Horse Camp Flats; Mount Shasta, Horse Camp Flats 2438 Comment
  HSC42976  Calystegia occidentalis subsp. occidentalis J. O. Sawyer, Ken Stillman 1976-5-29 2738 Siskiyou Along Specimen Creek 915 Comment
  RSA603170  Calystegia occidentalis subsp. occidentalis L. C. Wheeler 1935-6-9 3562 Siskiyou Yreka Creek. Siskiyou Mtns. (Mt Diablo Mer.) 1220 Comment
  CDA3580  Camelina microcarpa T. C. Fuller 1958-6-18 1807 Siskiyou Tom Williams property, 4 miles northeast of Montague. 0 Comment
  CDA3582  Camelina microcarpa T. C. Fuller 1962-6-11 8959 Siskiyou East side of Hwy 99 to Black Butte Summit, 4.1 miles south of Weed. 0 Comment
  UC796446  Camissonia contorta Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11757 Siskiyou French Creek Loggind Rd w Callahan 1066 Comment
  CAS-BOT-BC160905  Camissonia tanacetifolia subsp. tanacetifolia Elmer I. Applegate 1923-8-19 3893 Siskiyou West side of Medicine Lake Comment
  POM224484  Camissonia tanacetifolia subsp. tanacetifolia L. S. Rose 1936-7-28 36710 -A Siskiyou Mt. Hebron 1298 Comment
  RSA31949  Camissonia tanacetifolia subsp. tanacetifolia A. A. Heller 1938-7-13 15265 Siskiyou Along highway just south of Bray Comment
  SEINET10972065  Campanula prenanthoides Muth 1975-8-1 MUTH s.n. Siskiyou NR SUTCLIFFE CR., PRESTON PK QUAD, NR HAPPY CAMP 4400', COBBLY SOIL Comment
  UC1037435  Campanula prenanthoides Douglas Barbe 1955-7-28 317 Siskiyou on n slope of mountain 1/4 mi sw Big Carmen Lake; Klamath Mountains, Scott Mountain 1737 Comment
  UC131864  Campanula prenanthoides H. E. Brown Jul 15 1897-Jul 31 1897 527 Siskiyou s side Mt. Shasta 1524 Comment
  UC479158  Campanula prenanthoides Marcus E. Jones, A. M. 1931-7-17 29061 Siskiyou Shasta City (Session's) Comment
  UC61038  Campanula prenanthoides W. A. Setchell, C. C. Dobie 1902-7-22 Siskiyou The Bend Mount Shasta, McCloud River Comment
  UC890513  Campanula prenanthoides Alice Eastwood 1912-7-21 1275 Siskiyou Sisson Comment
  SEINET10463080  Campanula prenanthoides Ferlatte 1966-8-18 FERLATTE 420 Siskiyou Along the South Fork of the Salmon River between the campground and Carter's. T37N R9W Sec. 19 & 30 1524 Comment
  SEINET10463090  Campanula prenanthoides Howell 1937-7-26 Howell 13561 Siskiyou Between Big Flat and Caribou Gulch Comment
  SEINET10463159  Campanula prenanthoides Rose 1945-7-22 Rose 45153 Siskiyou Horse Creek and Klamath River. 503 Comment
  CAS-BOT-BC227477  Campanula rotundifolia Dana York 2011-8-12 3043 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  SEINET10464346  Campanula rotundifolia Alice Eastwood 1912-8-30 Eastwood 2038 Siskiyou Mount Eddy Comment
  SEINET10464348  Campanula rotundifolia Holt 1932-7-10 Holt s.n. Siskiyou Mount Eddy 1829 Comment
  CHSC178  Campanula scouleri V. Holt 1932-7-13 Siskiyou Nixon's Camp, Mt. Shasta. 670 Comment
  POM147896  Campanula scouleri J. B. Feudge 1927-7-22 1775 Siskiyou Mt. Shasta City 1067 Comment
  SEINET10463789  Campanula scouleri Joseph W. Congdon 1900-8-10 Congdon s.n. Siskiyou Near Sisson Comment
  SEINET10463886  Campanula wilkinsiana Cooke 1946-9-2 COOKE 17642 Siskiyou In Horse Camp water supply spring above Horse Camp, Mount Shasta 2515 Comment
  HSC86543  Cardamine bellidifolia D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta, slope of Red Butte 2134 Comment
  HSC29188  Cardamine californica Frederick W. Oettinger 1967-7-26 184 Siskiyou Marble Mtn. Wilderness Area, just below Tom Taylor Cabin spring 2049 Comment
  HSC77125  Cardamine nuttallii K. T. Stillman 1976-6-25 101 Siskiyou Marble Mtn. Wilderness Area, upper Marble Valley Comment
  CDA3648  Cardaria draba T. C. Fuller 1962-5-17 8739 Siskiyou Behind El Ranch Motel, Yreka. 0 Comment
  CDA6891  Carduus nutans C. S. Giebner 1966-7-1 Siskiyou Colly Road south of Grenada. 0 Comment
  CAS-BOT-BC19766  Carex abrupta John Thomas Howell 1939-8-3 14962 Siskiyou Marble Mountains. Spirit Lake. 1828 Comment
  UCR52390  Carex amplifolia L. P. Janeway 1982-6-27 27 Siskiyou Marshy area c. 125 m SE of Johnson Creek on the SW side of Elk Creek Trail. 732 Comment
  HSC85832  Carex aquatilis var. dives L. P. Janeway 1983-7-24 453 Siskiyou Poker Flat: slope between upper & lower parts of meadow. 1524 Comment
  UCD77462  Carex aurea Robert E. Preston 2002-7-12 1915 Siskiyou Klamath National Forest, S slope of Rainbow Mountain 1968 Comment
  SEINET7552631 Image available Carex bolanderi Barbara Wilson 1994-5-27 6921 Siskiyou Rogue River National Forest; near parking area for the New London Trailhead, between Road 1050 (Elliott Creek Road) and the creek Comment
  JEPS109522  Carex brainerdii Dean W. Taylor 1988-7-9 9949 Siskiyou Castle Lake, in cirque and ridgetop above heart lake 1950 Comment
  SEINET7552954 Image available Carex breweri Robert F. Thorne, Fred Oettinger 1969-8-10 38982 Siskiyou Mt. Shasta National Forest; S slope of Mt. Shasta. 2377 Comment
  UC195513  Carex feta Geo. D. Butler 1910-7-15 1785 Siskiyou Oro Fino Comment
  UC55223  Carex feta H. M. Hall and E. B. Babcock June, 1903 4061 Siskiyou Sisson Sierra Nevada Mountains, Mount Shasta 1066 Comment
  SEINET10367310  Carex hassei P. F. Zika 2011-7-31 25668 Siskiyou FS Rd 42N03, 1.6 road miles from junction with Gazelle-Callahan Rd. 1.5 air miles NE Mountain House, 3.5 air miles NW of Crater Lake, Scott Mts. 1600 Comment
  SEINET12649459 Image available Carex hassei Peter F. Zika, Barbara Wilson 2011-1 25668 Siskiyou 1600 Comment
  CAS-BOT-BC28086  Carex hoodii Rimo Bacigalupi 1959-7-2 7233 Siskiyou Big Flat Campground, headwaters of South Fork of the Salmon River, 1508 Comment
  JEPS102967  Carex inops subsp. inops L. P. Janeway 2002-7-13 7641 Siskiyou High Cascade Range. Along a logging spur road 0.2 km south-east of Road 13 (Pilgrim Creek Road) 9.0 km northeast of the Military Pass Road (Road 19); 0.2 km north of Edison Creek. Visible along miles of Pilgrim Creek Road 1347 Comment
  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
  SEINET4292186 Image available Carex integra Unknown 2006-1 8790 Siskiyou Klamath Ranges. Scott Mountains; Darlingtonia fen and creeklet complex above Road 40N13 1.6 air km west of Scott Moutain Summit. Scott Mountain 7.5' quad. Comment
  RSA211374  Carex integra William J. Ferlatte 1966-6-23 124 Siskiyou Trinity Alps: Yellow Rose Mine. 1982 Comment
  RSA237277  Carex laeviculmis Frederick W. Oettinger 1969-8-4 1179 Siskiyou Just north of Tobacco Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UC630392  Carex lenticularis var. impressa Annetta Carter 1939-8-20 1461 Siskiyou 12 mi sw Etna (nw side of Taylor Lake); Salmon Mountains, Taylor Lake 2026 Comment
  CAS-BOT-BC28427  Carex lenticularis var. lipocarpa Doris K. Kildale 1928-8-19 6555 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  CHSC96165  Carex luzulina L. P. Janeway 2006-7-1 8719 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
  SEINET7566385 Image available Carex luzulina L. P. Janeway 2003-8-9 7956 Siskiyou Kangaroo Mtn 7.5' quad. Klamath Ranges, Siskiyou Mountains, west side of Echo Lake, between Cook and Green Pass and Red Butte. 1665 Comment
  HSC103368  Carex luzulina Thomas W. Nelson, Jane Nelson 1984-7-28 7707 Siskiyou Along west side of Gumboot Lake 1860 Comment
  RSA756494  Carex luzulina var. ablata Barbara Ertter 1990-7-16 9378 Siskiyou NW side of Mount Eddy, 8 air miles SW of Weed, 1-2 miles from Parks Creek trailhead (=crest of Rt 17) along ridge 2287 Comment
  CAS-BOT-BC31622  Carex luzulina var. luzulina J. M. Tucker 1950-7-23 1944 Siskiyou Panther Meadows, south slope of Mt. Shasta. 2407 Comment
  CDA33108  Carex luzulina var. luzulina Gordon Leppig 1998-7-1 911 Siskiyou Klamath National Forest; Russian Wilderness, Little Duck Lake Fen; cirque west of Little Duck Lake. Comment
  RSA577568  Carex mariposana L. C. Wheeler 1934-7-21 3014 Siskiyou Head of Jaynes Canyon. Siskiyou Mountains. 2043 Comment
  SEINET10850462  Carex mariposana Louis C. Wheeler 1934-7-21 Wheeler 3014 Siskiyou Loose dry soil in sheltered spot. Head of Jaynes Canyon. Siskiyou Mts. S12, T47N, R10W. Mt. Diablo Mer. 2042 Comment
  CAS-BOT-BC31836  Carex microptera John Thomas Howell 1939-8-5 15082 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  SEINET7568467 Image available Carex multicaulis David Castaner 1989-6-19 10243 Siskiyou Trinity Creek campground, along Highway 3 by Trinity River, North Trinity Center. Comment
  HSC85798  Carex multicostata L. P. Janeway 1983-9-11 678 Siskiyou Poker Flat 1524 Comment
  HSC96015  Carex nigricans Juha Pykala, D. H. Norris 1987-7-7 2357 Siskiyou Mt. Shasta, Everitt Memorial Highway, Panther Meadow 2287 Comment
  UC618820  Carex nigricans J. W. Stacey 1938-8-18 11484 Siskiyou in the vicinity of the springs above Horse Camp (along the summit trail); Mount Shasta, Horse Camp Springs Comment
  RSA237285  Carex nigricans Frederick W. Oettinger 1969-9-4 1658 Siskiyou Tom s Lower Pond. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  SEINET7568935 Image available Carex nigricans Frederick W. Oettinger 1968-8-2 358 Siskiyou Salmon Mountains, High Lake Basins in the vicinity of English Peak Marble Mountain Wilderness Area, east end of Diamond Lake. 2073 Comment
  CAS-BOT-BC119471  Carex nudata D. E. Breedlove 1962-6-10 3321 Siskiyou On the N bank of the Klamath River at its junction with Goff Creek, 4 mi W of Seiad. 411 Comment
  CAS-BOT-BC119463  Carex nudata William Bridge Cooke 1940-7-12 15318 Siskiyou Box Canyon of the Sacramento near Mt. Shasta City. 914 Comment
  CAS-BOT-BC119476  Carex nudata Louis C. Wheeler 1934-9-22 3296 Siskiyou Walker 518 Comment
  SEINET7569410 Image available Carex nudata David Castaner 1989-6-19 10239 Siskiyou Along Highway 3, between Callahan and Gazelle. Comment
  CHSC106266  Carex praegracilis Lowell Ahart; John Dittes 2010-7-30 16953 Siskiyou About 50 yards west of the East Louie Road Bridge, about 30 yards west of the Shasta River, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada. 716 Comment
  POM81967  Carex praegracilis Geo D. Butler 1910-4-19 1202 Siskiyou Near Yreka. Comment
  HSC73345  Carex praticola Gail Newton 1980-6-20 456 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC118783  Carex preslii Fred D. Douthitt 1923-7-13 1 Siskiyou Dry Lake Mt. 2133 Comment
  CAS-BOT-BC118214  Carex rossii L. P. Janeway 1983-8-27 621 Siskiyou Preston Peak quad, Along the Twin Valley-Poker Flat trail. 1676 Comment
  HSC37155  Carex rossii J. O. Sawyer 1969-6-12 886 Siskiyou Above Sugar Creek, NW facing slope 1619 Comment
  CAS-BOT-BC117909  Carex scabriuscula L. P. Janeway 1983-8-27 623 Siskiyou Twin Valley lower meadow near trail, on W side of creek. 1493 Comment
  SEINET10751138  Carex scopulorum var. bracteosa A. Arthur Heller 1922-7-3 Heller 13673 Siskiyou Wet soil along Wagon creek, Mt. Eddy, in the Canadian zone. 2195 Comment
  HSC30675  Carex spectabilis Frederick W. Oettinger, R. F. Thorne 1969-8-6 1254 Siskiyou Marble Mtn. Wilderness Area, the New York Flumes, Pine Lake Basin 1860 Comment
  RSA238929  Carex spectabilis Frederick W. Oettinger 1969-9-2 1601 -a Siskiyou Bear Meadow near Tom Taylor Cabin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  CAS-BOT-BC117360  Carex stipata var. stipata G. Douglas Barbe 1955-6-29 29 Siskiyou 1 mi E of Callahan in a marshy meadow along a running streamlet. Comment
  CHSC98757  Carex straminiformis L. P. Janeway; B. Castro 2007-7-29 9140 Siskiyou High Cascade Range. Medicine Lake Highlands; Pumice Stone Mountain, very steep north-facing slope near the top of the northwest-trending shoulder. 2054 Comment
  SEINET4152285  Carex straminiformis Unknown 1939-8-6 15108 Siskiyou Elk Mountain, Marble Mountains Comment
  UC642542  Carex subfusca J. W. Stacey 1939-7-26 13756 Siskiyou vicinity Lake Helen (along the Summit Trail); Mount Shasta Comment
  RSA211456  Cassiope mertensiana subsp. ciliolata William J. Ferlatte 1967-7-25 733 Siskiyou Caribou Basin. Trinity Alps. 1982 Comment
  SEINET11262566  Castilleja applegatei James P. Smith 1974-5-27 7610 Siskiyou Copco Quad. Along Forest Service Road 47NO3.; 0 1280 Comment
  CAS-BOT-BC241136  Castilleja applegatei subsp. pinetorum L. E. Smith 1913-6-29 436 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC241141  Castilleja applegatei subsp. pinetorum J. H. Chastain 1917-6-1 s.n. Siskiyou North fork of Trinity River Comment
  CAS-BOT-BC241146  Castilleja applegatei subsp. pinetorum Alice Eastwood 1912-7-17 1185 Siskiyou Sisson Comment
  HSC604  Castilleja applegatei subsp. pinetorum William J. Ferlatte 1967-7-26 751 Siskiyou Caribou Basin, Sawtooth Ridge 2287 Comment
  JEPS23766  Castilleja applegatei subsp. pinetorum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6785 Siskiyou a little above and e McBride Springs (s slopes of Mt. Shasta); Mt. Shasta 1432 Comment
  JEPS80490  Castilleja applegatei subsp. pinetorum Gilbert Muth 1966-7-17 386 Siskiyou near Lookout; Marble Mt. Wilderness Area 2042 Comment
  CHSC1701  Castilleja arachnoidea K. Jaekel 1939-7-8 Siskiyou Panther Meadows, Mt. Shasta. 2316 Comment
  HSC69005  Castilleja arachnoidea Maralyn A. Renner 1980-7-28 2152 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  HSC69263  Castilleja arachnoidea J. O. Sawyer 1980-7-20 3734 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  HSC81583  Castilleja arachnoidea Thomas W. Nelson, Jane P. Nelson 1980-7-17 6087 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  POM266359  Castilleja arachnoidea subsp. shastensis Marion Ownbey, Fred G. Meyer 1940-7-4 2190 Siskiyou On ridge above head of Brewer Creek, east side of Mt. Shasta. Comment
  UC1094394  Castilleja lacera Rimo C. Bacigalupi with Galen Smith 1957-6-26 5939 Siskiyou ca 2 mi n Weed (along Highway 99) 1036 Comment
  UC726462  Castilleja lacera A. A. Heller 1919-6-20 13260 Siskiyou Metcalf's Comment
  CAS-BOT-BC254013  Castilleja miniata A. A. Heller 1916-7-20 12473 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy 1524 Comment
  HSC69174  Castilleja miniata Maralyn A. Renner 1980-8-6 2333 Siskiyou Cracker Meadow 1555 Comment
  UC922473  Castilleja miniata Annie M. Alexander and Louise Kellogg 1949-7-20 5811 Siskiyou slope above Paradise Lake; Marble Mountains 1920 Comment
  POM42523  Castilleja miniata Geo. D. Butler 1909-6-22 931 Siskiyou Goosenest. Comment
  CAS-BOT-BC32556  Castilleja muscipula John Thomas Howell 1939-8-4 15060 Siskiyou Near Spirit Lake, Marble Mts. 1828 Comment
  HSC20549  Castilleja pilosa R. C. Wunner 1965-6-7 129 Siskiyou Lava Beds N.M., Dragon Head Cave 1364 Comment
  JEPS26523  Castilleja pruinosa Lauramay T. Dempster 1961-7-2 1860 Siskiyou sw of Etna (ridge w of Salmon Mountain Summit) 1828 Comment
  HSC76870  Castilleja pruinosa K. T. Stillman 1976-9-9 468 Siskiyou Marble Mountain Wilderness Area, Marble Valley Guard Station. 1738 Comment
  POM42524  Castilleja pruinosa Geo. D. Butler 1910-5-15 1340 Siskiyou Greenhorn Mts. 1220 Comment
  POM42526  Castilleja pruinosa Geo. D. Butler 1910-5-1 1255 Siskiyou Near Yreka. Comment
  CHSC71330  Castilleja tenuis Vernon H. Oswald; Lowell Ahart 1998-6-11 9207 Siskiyou Dry Lake on the south side of Tennant Rd. ca. 9 air mi east of Grass Lake, ca. 22 air mi northeast of Weed. 1402 Comment
  HSC103023  Catalpa bignonioides J. P. Smith 2014-6-6 13880 Siskiyou Seiad Valley 417 Comment
  CAS-BOT-BC48651  Ceanothus cordulatus B. D. Stark 1929-7-25 1392 Siskiyou 8 mi. no. of Dunsmuir 609 Comment
  UC163699  Ceanothus cuneatus var. cuneatus Geo. D. Butler 1910-5-2 1267 Siskiyou Yreka Comment
  UCSB16461  Ceanothus cuneatus var. cuneatus Breedlove, Dennis 1962-6-10 Siskiyou Along Indian Creek Road, 15.6 miles northwest of Happy Camp; Siskiyou Mountains 975 Comment
  HSC100194  Ceanothus integerrimus J. P. Smith, & J. O. Sawyer 2011-9-5 13417 Siskiyou Along Klamath National Forest Road 45N28. 1378 Comment
  SEINET5339320  Ceanothus integerrimus G. Butler 1910-8-7 1819 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC52119  Ceanothus prostratus Geo. B. Grant 1902-9-1 150 Siskiyou Sisson, No Cal Comment
  CAS-BOT-BC53086  Ceanothus prostratus W. R. Dudley 1899-8-10 s.n. Siskiyou Near Sisson Comment
  CAS-BOT-BC53099  Ceanothus prostratus Elmer I. Applegate 1935-6-8 9422 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  HSC36947  Ceanothus prostratus J. P. Smith 1974-5-26 7587 Siskiyou Along FS Rd. 47N03, 1/4 mi. NE of Chandler Glade 1768 Comment
  RSA14414  Ceanothus prostratus Elmer I. Applegate 1929-6-18 5740 Siskiyou [No location data on label] Comment
  RSA60713  Ceanothus prostratus I. L. Wiggins 1950-5-28 12364 Siskiyou Margins of Carmen Lake, ca. 1.5 miles E of Scott Mtn road. 1738 Comment
  UC54493  Ceanothus prostratus H. M. Hall and E. B. Babcock June, 1903 4032 Siskiyou around Dunsmuir; Sierra Nevada Mountains, around Dunsmuir 609 Comment
  CDA35686  Ceanothus prostratus T. C. Fuller 1962-6-11 8949 Siskiyou East side of Highway 99 to Mt. Shasta City, 1.3 miles south of Black Butte Summit. 0 Comment
  RSA23631  Ceanothus sanguineus O. V. Matthews 1939-6-7 9512 Siskiyou Mohawk Mine, Frog Pond trail, 2 miles S of Oregon-California line, alt 4000ft, siskiyou County 1220 Comment
  UCR266168  Ceanothus sanguineus David J. Keil, Kathleen Keil 1990-7-28 s.n. Siskiyou Marble Mountains, Klamath National Forest, Rye Patch Creek Trail 1700 Comment
  CAS-BOT-BC63151  Ceanothus velutinus Alice Eastwood 1912-9-1 2067 Siskiyou Mount Shasta. Comment
  HSC99933  Ceanothus velutinus J. P. Smith, & J. O. Sawyer 2011-7-31 13352 Siskiyou Sugar Creek Trail W of Callahan 1463 Comment
  RSA120637  Ceanothus velutinus G. D. Barbe 1955-8-1 320 Siskiyou SE of Craggy lookout on Mt Bolivar. 2195 Comment
Read comments
Mar 6 2013
  SDSU6509  Centaurea cyanus D. F. Howe 1977-7-2 4982 Siskiyou 7 miles west of Fort Jones on Scott River Rd. 671 Comment
  CAS-BOT-BC272105  Centaurea cyanus Margaret M. Hanna 1958-6-20 s.n. Siskiyou 1/2 mi. north of Weed Comment
  CAS-BOT-BC288800  Centromadia fitchii A. A. Heller 1925-7-25 13907 Siskiyou About 7 miles S of Yreka Comment
  CAS-BOT-BC288802  Centromadia fitchii L. E. Smith 1913-6-25 405 Siskiyou Yreka Comment
  CAS-BOT-BC279142  Centromadia pungens subsp. pungens Geo. D. Butler 1910-8-18 1840 Siskiyou Shasta Valley Comment
  CHSC2343  Cephalanthera austiniae V. Holt 1935-6-29 Siskiyou Mt. Shasta City. 1097 Comment
  HSC27672  Cercis occidentalis Carl W. Mize 1972-6-8 28 Siskiyou Along the main trail 351 Comment
  HSC19309  Cercocarpus ledifolius J. O. Sawyer 1968-7-23 606 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake 1829 Comment
  UCD112913  Cercocarpus ledifolius var. intermontanus K. M. Meyer; A. Townesmith 2007-8-2 183 Siskiyou Shasta-Trinity National Forest. 0.1 mile on Forest Service Road 43N21, 12.5 miles on Highway 97, E side of road. 1218 Comment
  CAS-BOT-BC148520  Cercocarpus ledifolius var. ledifolius Elmer I. Applegate 1935-6-7 9407 Siskiyou Indian Well, Lava Beds National Monument Comment
  CAS-BOT-BC148522  Cercocarpus ledifolius var. ledifolius Wm. Bridge Cooke 1938-8-23 11574 Siskiyou Upper end of Shastina Lava Park 2438 Comment
  POM66496  Chaenactis carphoclinia Geo. D. Butler 1910-6-17 1573 Siskiyou Humbug[?] Mtn 1220 Comment
  CAS-BOT-BC276769  Chaenactis douglasii var. douglasii Alice Eastwood 1912-9-1 2078 Siskiyou Mount Shasta Comment
  HSC253  Chaenactis douglasii var. douglasii William J. Ferlatte 1967-8-23 1086 Siskiyou Head of Kidd Creek; E side of Black Mtn. 2134 Comment
  JEPS52290  Chaenactis suffrutescens Wayne Roderick 1966-6-26 Siskiyou 6 mi from either Fort Jones or Etna (in Scott Valley); Scotts Valley 853 Comment
  RSA105314  Chaenactis suffrutescens Milo S. Baker 1955-6-26 13072 Siskiyou Hwy 99, 4 miles south of Gazella 915 Comment
  UC128643  Chaenactis suffrutescens Harley P. Chandler 1731 Siskiyou Etna Mills North Coast Ranges 914 Comment
  HSC67707  Chamaecyparis lawsoniana John Palmer 1980-7-24 607 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  HSC68435  Chamaecyparis lawsoniana Maralyn A. Renner 1980-7-5 1530 Siskiyou Doe Flat 1220 Comment
  UCD133317  Chamaecyparis lawsoniana D. Sanchez-Mata 1997-9-19 s.n. Siskiyou Klamath National Forest. Happy Camp-O'Brian, Indian Creek Road. Jefferson State Scenic Byway. 1400 Comment
  UC334091  Chamaesyce glyptosperma Lemmon Siskiyou near Shasta; Northern Claifornia Comment
  POM138054  Chamaesyce serpillifolia M. S. Baker 1897-08 147 Siskiyou On road to Medicine Lake. Comment
  RSA15484  Chamaesyce serpillifolia L. S. Rose 1936-7-29 36702 Siskiyou Shasta Springs. 762 Comment
  SBBG25916  Chamaesyce serpillifolia subsp. serpillifolia D. Myrick 1966-8-9 1511 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  HSC36743  Chamerion angustifolium subsp. circumvagum Brent Whiteley 1975-6-22 26 Siskiyou 220 Comment
  HSC19171  Cheilanthes gracillima J. O. Sawyer 1969-6-10 808 Siskiyou S face near Sugar Lake 1829 Comment
  JEPS355  Cheilanthes gracillima Geo. D. Butler 1910-7-12 1754 Siskiyou Shackelford Creek Shackelford Creek Comment
  SEINET6166384 Image available Cheilanthes gracillima W. V. Showalter 1954-8-8 Siskiyou Mt. Shasta. 2438 Comment
  HSC92437  Chenopodium atrovirens Jennifer Whipple 1976-7-9 1384 Siskiyou Dale Creek Drainage on the N face of Mt. Eddy 2195 Comment
  RSA233695  Chenopodium botrys R. F. Thorne, Frederick W. Oettinger 1969-8-10 38949 Siskiyou Mt. Shasta National Forest: Southwest slope of Mt. Shasta along Ski Bowl Road. 1280 Comment
  UC722500  Chimaphila menziesii C. L. Hitchcock and J. S. Martin 1939-7-7 5269 Siskiyou ca. 13 mi. s. Takilma, Oregon; Sanger Peak Trail 1066 Comment
  RSA467012  Chimaphila menziesii L. C. Wheeler 1934-8-24 3221 Siskiyou Trapper Creek. 1616 Comment
  CAS-BOT-BC452254  Chimaphila umbellata W. R. Dudley 1899-8-9 s.n. Siskiyou Black Butte Comment
  HSC73224  Chimaphila umbellata Gail Newton 1980-6-20 519 Siskiyou Near Bald Mtn. 1326 Comment
  CAS-BOT-BC252662  Chorizanthe membranacea Alice Eastwood 1912-7-25 1447 Siskiyou Pitt to Baird, Mount Shasta Comment
  UC849194  Chorizanthe membranacea Alice Eastwood 1912-7-25 1447 Siskiyou Pitt to Baird (Mount Shasta); , Pitt to Baird Comment
  CAS-BOT-BC36391  Chrysolepis chrysophylla G. P. Rixford no date s.n. Siskiyou Hilt Comment
  HSC22115  Chrysolepis chrysophylla J. O. Sawyer 1969-7-23 1454 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  HSC100196  Chrysolepis chrysophylla var. minor J. P. Smith, & J. O. Sawyer 2011-9-5 13420 Siskiyou Along Klamath National Forest Service Road 45N28, 0.2 mi. W of junction with Yreka-Walker Road. 1474 Comment
  UC750566  Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose 1941-8-28 41427 Siskiyou Dorris 1291 Comment
  SEINET8497824  Cinna latifolia D. W. Taylor 2006-8-8 19590 Siskiyou Dry Creek Peak (ridge ca. 12 air miles Northeast of Mt. Shasta summit) at headwaters Antelope Creek 2195 Comment
  UC1265356  Cinna latifolia F. W. Oettinger 1968-9-2 663 Siskiyou sw Upper English Lake (Salmon Mountains); , Upper English Lake 1874 Comment
  CAS-BOT-BC105874  Cirsium G. J. Muth 1969-8-12 1369 Siskiyou Second Valley 2225 Comment
  JEPS81788  Cirsium andersonii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6829 Siskiyou U.S. Forest Service camp ground at Scott Mtn. road summit Scott Mtn. (boundary of Siskiyou and Trinity Cos.) 1646 Comment
  UCR51764  Cirsium andersonii Thomas W. Nelson, J. Nelson, J. P. Smith 1978-7-24 4545 Siskiyou Along State Route 3, just north of Scott Mtn summit. 1585 Comment
  CDA1274  Cirsium inamoenum T. C. Fuller 1979-10-3 20271 -A Siskiyou Goosenest Rd., 14 km northeast of Tennant. 0 Comment
  JEPS44095  Cirsium occidentale var. candidissimum W. B. and V. G. Cooke 1965-7-12 35167 Siskiyou at turnout n of Whitney Creek (bank of US 97); Mt/ Shasta Comment
  SBBG18918  Cirsium occidentale var. candidissimum F. E. Clements 1918-1 Siskiyou 2 mi from Hornbrook Comment
  CAS-BOT-BC288777  Cirsium remotifolium J. R. Grisham 1960-7-14 s.n. Siskiyou US Rangeland, 15 miles N/Cecilville Comment
  JEPS59177  Cirsium remotifolium var. odontolepis Geo. D. Butler 1908-8-4 335 Siskiyou Cold Spring Camp , Wooly Creek 1676 Comment
  CDA1580  Cirsium scariosum var. robustum T. C. Fuller 1977-6-14 20216 Siskiyou Klamath Lake valley; North side of Hwy 161 (Stateline Rd.) 5.2 km. east of Hwy 97, 10.5 km. NE of Dorris. Comment
  CAS-BOT-BC228987  Cistanthe umbellata L. E. Smith 1913-5-23 241 Siskiyou Weed Comment
  JEPS43545  Clarkia amoena subsp. huntiana Willis L. Jepson July 1894 14371 Siskiyou Sissons Mt. Shasta Comment
  HSC36771  Clarkia lassenensis J. P. Smith 1974-5-25 7413 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  CAS-BOT-BC164744  Clarkia rhomboidea Wm. Bridge Cooke 1940-7-12 15339 Siskiyou Along the Memorial Highway, near MacBride Springs Comment
  CAS-BOT-BC164975  Clarkia rhomboidea A. A. Heller 1928-6-9 14598 Siskiyou Slopes of Spring Hill near the town of Mt. Shasta 1097 Comment
  RSA237658  Clarkia rhomboidea Frederick W. Oettinger 1969-7-28 1086 Siskiyou Dry open granite slope above first part of Tom s Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  RSA448345  Clarkia rhomboidea Louis C. Wheeler 1934-6-2 2611 Siskiyou Oak Knoll Ranger Station, Klamath River. Siskiyou Mtns. (Mt Diablo Mer.) 671 Comment
  RSA0080498  Claytonia lanceolata P. A. Munz 1952-7-2 17908 Siskiyou Ridge west of Baldy Mt. L. O., 6 mi. by air west of Happy Camp. Siskiyou Mts. 1768 Comment
  HSC64315  Claytonia perfoliata subsp. intermontana J. P. Smith 1973-5-5 6507 Siskiyou Along Cook and Green Pass Rd. Comment
  UC163755  Claytonia rubra subsp. rubra Geo. D. Butler 1909-3-24 676 Siskiyou Oro Fino; Mining Camp Comment
  UC454256  Claytonia sibirica I. J. Condit 1911-7-31 Siskiyou Shasta Springs; along railroad Comment
  CAS-BOT-BC92758  Clematis ligusticifolia Geo. D. Butler 1910-8-3 1810 Siskiyou Yreka Creek. Comment
  RSA332446  Clematis ligusticifolia J. P. Smith, Steve Selva 1970-7-16 4412 Siskiyou Beaver Creek Campground 823 Comment
  HSC577  Clintonia uniflora William J. Ferlatte 1966-6-22 85 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  CAS-BOT-BC500961  Clintonia uniflora Lester Rowntree 1934-5-11 s.n. Siskiyou Happy Camp near Oregon-California Line Comment
  CAS-BOT-BC500966  Clintonia uniflora Dorothy Parker 1950-6-25 462 Siskiyou Duck Lake Creek Salmon Mountain 1524 Comment
  RSA68875  Clintonia uniflora A. E. Culbertson 1943-7-1 81 Siskiyou Near Forest Service Campground about a mile downstream from Castle Lake on road to town of Shasta. On a north slope of a 6600 eastern spur of Trinity Mountains and 1500 above Sacramento River., Within 9 air miles of its headwaters to the west. Mt. Shasta 13 miles to the northeast. 1524 Comment
  SEINET10966302  Clintonia uniflora John G. Lemmon 1879-7-12 Lemmon s.n. Siskiyou Scotch Camp, Mount Shasta, CA. Comment
  CHSC57456  Collinsia linearis L. P. Janeway 1984-6-22 876 Siskiyou Ca 1 mi north of Scott Summit on Road 40N08. Comment
  JEPS59014  Collinsia linearis Dorothy Parker 1960-5-23 750 Siskiyou below Sawyers Bar; Salmon River Comment
  RSA237561  Collinsia linearis Frederick W. Oettinger 1969-7-11 978 Siskiyou Due west of northwest end of Hancock Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. 1951 Comment
  SEINET10931314  Collinsia linearis Mary Susan Taylor 1980-7-8 Taylor 3115 Siskiyou T39N R5W se sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on ridge S of Castle Lake, above Hearts Lake. 2017 Comment
  JEPS6166  Collinsia rattanii Geo. D. Butler 1909-4-14 651 Siskiyou Hamburg Comment
  JEPS6163  Collinsia rattanii W. L. Jepson 1937-7-30 18540 Siskiyou near Poker Flat (summit of Siskiyou Mtns); Siskiyou Mtns. 1554 Comment
  POM43376  Collinsia sparsiflora var. bruceae Geo. D. Butler 1909-4-4 574 Siskiyou Shasta Valley. Comment
  UC164318  Collinsia sparsiflora var. collina George D. Butler 1909-4-4 574 Siskiyou Between Yreka and Montague Yreka; Shasta Valley Comment
  RSA237358  Collinsia torreyi Frederick W. Oettinger 1967-6-24 115 Siskiyou Ridge at Etna Summit between Etna and Sawyers Bar. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  JEPS15386  Collinsia torreyi var. latifolia Douglas Barbe 1955-7-6 131 Siskiyou above se shore Taylor Lake (on slope); Klamath Mtns, Salmon Mtns 1950 Comment
  HSC19050  Collinsia torreyi var. latifolia J. O. Sawyer 1969-7-18 1393 Siskiyou W facing slope above S Russian Creek 1860 Comment
  JEPS84248  Collomia grandiflora L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6312 Siskiyou just s state line (n-facing road bank of Indian Camp Road from Takilma to Happy Camp) Comment
  CAS-BOT-BC94906  Collomia grandiflora R. C. Wenk 2005-7-15 225 Siskiyou Trinity Alps, above South Fork of Salmon River, along Yellow Rose Mine Trail, N along ridge toward Preacher's Peak 2133 Comment
  POM65612  Collomia grandiflora E. B. Copeland 1903-8-12 3932 Siskiyou Sisson. Comment
  HSC45829  Collomia heterophylla J. P. Smith 1973-5-5 6469 Siskiyou Along Cook and Green Pass Rd. Comment
  UC1347199  Collomia linearis John Thomas Howell 1937-7-22 13262 Siskiyou near Big Flat; South Fork of Salmon River 1524 Comment
  UC133731  Collomia tinctoria Katharine Brandegee July 1887 Siskiyou Sissons Comment
  CHSC72222  Conium maculatum Vernon H. Oswald; Lowell Ahart 1998-9-16 9644 Siskiyou Vista point on Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 8.7 mi east of Hwy. 97. 1243 Comment
  UC60933  Convolvulus arvensis Geo. B. Grant September, 1902 5219 Siskiyou Sisson Mount Shasta (railway bank) 914 Comment
  UC618655  Conyza canadensis unknown 1938-7-29 11383 Siskiyou Howard Mount Shasta, Howard 1219 Comment
  UCD138922  Corallorhiza maculata J. M. Tucker; D. V. Hemphill 1974-7-27 4303 Siskiyou on Sandy Ridge ca. 4.5 miles from Haypress Meadows; beside trail Monument Lake, Marble Mountain Wilderness Area. 1859 Comment
  RSA237632  Corallorhiza maculata Frederick W. Oettinger 1969-7-28 1090 Siskiyou Steep west-southwest slope north-northeast of Pine Lake. The Salmon Mountains; high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area 2073 Comment
  SEINET10469999  Corallorhiza maculata Mary Susan Taylor 1980-7-8 Taylor 3106 Siskiyou T39N R5W ne sec 24, Dunsmuir quad; Shasta-Trinity Natl Forest; on NW side of Castle Lake, along edge of lake. 1615 Comment
  HSC73994  Corallorhiza mertensiana Gail Newton 1980-6-20 520 Siskiyou Near Bald Mtn. 1326 Comment
  JEPS84238  Corallorhiza mertensiana L. R. Heckard with J. Hickman et al. 1986-7-17 6471 Siskiyou ca. 5 mi. n. town of Seiad Valley (trail up Kangaroo Peak, s. of Lily Pad Lake); Kangaroo Peak 1900 Comment
  HSC19038  Corallorhiza mertensiana J. O. Sawyer 1969-8-4 1848 Siskiyou Slopes S of S Sugar Lake 2134 Comment
  UCD123125  Cordylanthus tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-5 16221 Siskiyou Dunsmuir; road 1M036 (Railroad Park Road) across from the railroad museum. 806 Comment
  SEINET3863430  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson, Dick Brainerd 2010-8-4 16210 Siskiyou Old Stagecoach Road, about 0.5 mile north of Forest Service road 41N26, the Eddy Creek Raod.; 0 996 Comment
  UCD123167  Cordylanthus tenuis subsp. tenuis Barbara L. Wilson; Richard E. Brainerd 2010-8-4 16202 b Siskiyou Forest Service road 41N26, the Eddy Creek Road, 0.6 mile above the junction with Old Stagecoach Road. 1039 Comment
  JEPS7046  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi with G. T. Robbins and C. L. Custer 1954-8-12 4792 Siskiyou 1/2 mi w Hamburg (along hwy following Klamath River) 457 Comment
  RSA0084761  Cordylanthus tenuis subsp. viscidus Rebecca Wenk 2008-7-25 949 Siskiyou Road to Kangaroo Lake, 4.3 miles south of turnoff from Gazelle-Callahan Rd. 1616 Comment
  CAS-BOT-BC212274  Cornus glabrata Louis C. Wheeler 1934-7-16 2909 Siskiyou Oak Knoll R.S., Klamath Forest 670 Comment
  CAS-BOT-BC212055  Cornus nuttallii J. H. Thomas 1954-5-13 4162 c Siskiyou Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, along Rush Creek, Salmon Mountains, Klamath National Forest 1127 Comment
  CAS-BOT-BC212063  Cornus nuttallii Alice Eastwood 1923-5-27 11994 Siskiyou Shasta Springs Comment
  CAS-BOT-BC212071  Cornus nuttallii Doris K. Kildale 1929-7-20 8630 Siskiyou Trail up South Fork Indian Crek to Elk Lick 609 Comment
  RSA187372  Cornus nuttallii H. A. Thomas, J. H. Thomas, Alan Thomas 1954-7-21 4437 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek. 1159 Comment
  RSA397465  Cornus nuttallii Christopher Davidson 1975-6-5 2648 Siskiyou 2.0 mi E of town of Mt. Shasta on Mt. Shasta Uplands Rd. 1189 Comment
  RSA47649  Cornus nuttallii Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11748 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  CAS-BOT-BC210390  Cornus sericea Annie M. Alexander; Louise Kellogg 1949-7-24 5867 Siskiyou Trail to Bear Lake. Paradise Lake, Marble Mountains 1920 Comment
  CAS-BOT-BC210392  Cornus sericea Doris K. Kildale 1928-8-18 6424 Siskiyou North Fork Salmon River at Finley Camp Comment
  CAS-BOT-BC210425  Cornus sericea Ira L. Wiggins 1955-7-24 13503 Siskiyou Trail at crossing of China Creek 1301 Comment
  CAS-BOT-BC212151  Cornus sericea William A. Dayton 1913-6-14 8257 Siskiyou On banks of Rail Creek, Shasta Forest 1341 Comment
  HSC31801  Cornus sericea subsp. sericea Steve Selva, Roger Jensen 1974-8-16 4 Siskiyou Along banks of Sugar Creek near outflow of Sugar Lake. Comment
  HSC61806  Cornus sericea subsp. sericea Ruby Van Deventer 1938-7-13 Siskiyou Poker Flat. 1585 Comment
  HSC69542  Cornus sericea subsp. sericea Maralyn A. Renner 1980-8-6 2245 Siskiyou FS Rd. 40S07 crossing of Louse Creek 1127 Comment
  UC1280732  Cornus sericea subsp. sericea H. E. McMinn 1931-6-27 2513 Siskiyou Mt. Shasta City 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
  RSA68928  Cornus stolonifera A. E. Culbertson 1943-7-12 30 Siskiyou Castle Lake, 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. 1657 Comment
  RSA96961  Crataegus suksdorfii Percy C. Everett, E. K. Balls 1954-10-12 20275 Siskiyou along Klamath River, Hwy 96, 5.8 miles NW from Hamburg. 366 Comment
  RSA238881  Crepis acuminata Frederick W. Oettinger 1967-7-26 197 Siskiyou Northeastern end of Crapo Peak ridge. Salmon Mountains: High lake basins in the vicinity of English Peak, Marble Mountains wilderness area; ca 2195 Comment
  CAS-BOT-BC291527  Crepis intermedia John Thomas Howell 1939-8-4 15041 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  HSC2329  Crepis intermedia Geo. D. Butler 1910-7-12 1758 Siskiyou Shackleford Creek 1372 Comment
  HSC58868  Crepis intermedia Marvin Butler 1971-8-1 251 Siskiyou Near Bell Echo Camp, close to the town of Cave Junction 1433 Comment
  CDA4445  Crepis occidentalis Jess Grisham 1958-5-12 399 -58 Siskiyou W.H. Gamble property, Yreka. 0 Comment
  HSC61804  Crepis pleurocarpa Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  SDSU3854  Crepis pleurocarpa D. F. Howe 1962-8-4 3392 Siskiyou Near summit of Baldy Mt. Comment
  CAS-BOT-BC290879  Crepis pleurocarpa Gilbert Muth 1965-8-11 s.n. Siskiyou Marble Valley Comment
  CAS-BOT-BC299728  Crocidium L. E. Smith 1913-3-26 23 Siskiyou Yreka, back of Caholic cemetery Comment
  HSC43838  Crocidium multicaule Maralyn O'Meara 1974-5-27 494 Siskiyou 7.4 mi. NE of Ft. Jones on Hwy. 3 1159 Comment
  UCR51766  Crocidium multicaule L. C. Wheeler 1935-5-5 03463 Siskiyou Siskiyou Mtns., Greenhorn Creek 854 Comment
  HSC39750  Crocidium multicaule J. O. Sawyer 1970-4-4 2084 Siskiyou Along Sugar Creek 823 Comment
  HSC19013  Cryptantha affinis J. O. Sawyer 1969-8-4 1878 Siskiyou S of S Sugar Lake 2104 Comment
  HSC19014  Cryptantha affinis J. O. Sawyer 1969-8-1 1673 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  UC1180475  Cryptantha ambigua Robert Ornduff 1960-6-30 6268 Siskiyou U.S. Hwy 97 Grass Lake Comment
  UC711887  Cryptantha ambigua Roxana S. Ferris and Laura Lorraine 1941-8-11 10496 Siskiyou Grass Lake Station, on U.S. Highway 97 1554 Comment
  UC78717  Cryptantha flaccida T. S. Brandegee Jul 1887 Siskiyou Edgewood Comment
  UC133720  Cryptantha simulans A. A. Heller 1905-6-15 8035 Siskiyou near Sisson Comment
  JEPS67870  Cryptantha torreyana Geo. D. Butler 1909-5-3 762 Siskiyou Humbug Mtn. Comment
  POM72148  Cryptantha torreyana Geo. D. Butler 1910-5-8 1310 Siskiyou Near Yreka. Comment
  CAS-BOT-BC70484  Cryptogramma acrostichoides John Thomas Howell 1937-7-26 13525 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  HSC99673  Cryptogramma acrostichoides J. O. Sawyer 1969-6-13 952 Siskiyou Slope above Little Duck Lake 2134 Comment
  SBBG81349  Cryptogramma acrostichoides R. N. Philbrick 1976-7-2 Siskiyou just above S side of Sugar Lake 1981 Comment
  UC185185  Cryptogramma acrostichoides Geo. D. Butler 1755 Siskiyou Shackelford Creek 1371 Comment
  HSC34491  Cryptogramma acrostichoides J. D. Ackerman 1974-8-18 431 Siskiyou Ridge above mine near Cyclone Gap and Copper Mtn. in the Preston Peak area 1524 Comment
  HSC99674  Cryptogramma acrostichoides Al Hobart Jul 1964 Siskiyou FS Rd. 17N04, Doe Flat, Buck Lake 1535 Comment
  CAS-BOT-BC80547  Cupressus bakeri O. V. Matthews 1939-7-11 30 Siskiyou Nearly the highest point of Seiad Grove, Seiad Region 1463 Comment
  UC1321450  Cupressus bakeri C. O. Stone 1964-6-20 290 Siskiyou n section line crossing of Sec. 13 (on w side of jeep road, NE 1/4, NE 1/ 4, NE 1/ 4); Fall River Mills. Quad. 1085 Comment
  CDA39930  Cuscuta campestris T. C. Fuller 1963-8-27 11167 Siskiyou South side of Dorris-Tulelake Highway, 12 miles west of Hatfield. 0 Comment
  JEPS24800  Cuscuta howelliana Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6809 Siskiyou about 3 mi nw Weed (head of Shasta Valley); Shasta Valley 975 Comment
  RSA12491  Cuscuta suksdorfii var. subpedicellata C. B. Wolf 1934-7-4 5946 Siskiyou 6 8/10 mi. from Dry Lake Lookout on rd. to Horse Creek, Siskiyou Mts. Comment
  UC126701  Cycladenia humilis var. humilis Milo S. Baker 1896-6-10 101 Siskiyou Sisson Comment
  HSC19016  Cynoglossum occidentale J. O. Sawyer 1969-7-26 1583 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  CDA37842  Cynoglossum officinale Ashley Knight 2012-7-16 PDR# 470 P06027571 Siskiyou Slightly west of Slagger Camp, Shasta/Trinity National Forest. 0 Comment
  CDA5637  Cynoglossum officinale T. C. Fuller 1967-6-27 16034 Siskiyou West side of road to McCloud Reservoir, 0.3 mile south of McCloud. 0 Comment
  HSC26608  Cynosurus echinatus J. P. Smith, Steve Selva 1980-6-15 3920 Siskiyou 10 mi. NW of Forks of Salmon Comment
  POM211261  Cyperus bipartitus L. C. Wheeler 1934-8-31 3229 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Lund Ranch, W Fork Beaver Creek. 1066 Comment
  HSC66252  Cypripedium californicum Maralyn A. Renner 1980-6-23 966 Siskiyou W Fork Seiad Creek 878 Comment
  HSC61803  Cystopteris fragilis Ruby Van Deventer 1960-7-13 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC192255  Danthonia californica A. A. Heller 1915-7-18 12113 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1249 Comment
  HSC19086  Danthonia californica J. O. Sawyer 1969-7-25 1531 Siskiyou SE facing slope W of Sugar Lake 1845 Comment
  RSA239120  Danthonia californica var. americana Frederick W. Oettinger 1969-9-4 1657 Siskiyou Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  HSC103046  Danthonia unispicata J. P. Smith 2014-6-7 13904 Siskiyou Along Forest Service Road 40N08, east of State Route 3 1701 Comment
  HSC66361  Darlingtonia californica M. S. Taylor 1980-7-22 3171 Siskiyou 0.1 mi. SW of Big Carmen Lake, on S side of 40N08, 2.3 mi. NE of its junction with Hwy. 3 at Scott Mt. Summit. 1738 Comment
  UC1483489  Darlingtonia californica Maralyn A. Renner 1980-7-4 1417 Siskiyou Clear Creek Trail n Trout Camp; Klamath National Forest, Preston Peak Quad. 1066 Comment
  RSA30642  Darmera peltata Lincoln Constance, R. C. Rollins 1942-5-13 s.n. Siskiyou Klamath-Siskiyou Region: Klamath River 4 miles east of Seiad. 457 Comment
  UC165440  Darmera peltata Geo. D. Butler 1910-4-24 1234 Siskiyou Shackleford Creek Comment
  CAS-BOT-BC1413  Delphinium andersonii subsp. cognatum Elmer Ivan Applegate 1935-6-2 9282 Siskiyou West base of Sconchin Butte, Lava Beds National Monument Comment
  HSC27050  Delphinium depauperatum J. O. Sawyer 1971-7-15 2427 Siskiyou Along Red Rock Valley Creek 1585 Comment
  HSC34212  Delphinium glaucum J. P. Smith, J. O. Sawyer 1973-8-14 7315 Siskiyou Around Cliff Lake 1860 Comment
  SEINET10833584  Delphinium nudicaule Mary Merello 1993-6-22 Merello 687 Siskiyou Shasta National Forest outside of Mt. Shasta City. Along Forest Service Road 26 to Lake Siskiyou. Mixed conifer forest along rocky, gravely slopes of the Sacramento River. 1090 Comment
  CAS-BOT-BC9890  Delphinium nudicaule L. E. Smith 1913-5-4 258 Siskiyou Yreka Comment
  HSC41692  Delphinium nuttallianum J. P. Smith, Steve Selva 1970-7-18 4486 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  UC54272  Delphinium nuttallianum H. M. Hall and E. B. Babcock June 1903 4124 Siskiyou near head of McCloud River (se Siskiyou Co.); Sierra Nevada Mountains 1524 Comment
  CAS-BOT-BC118068  Delphinium nuttallianum Elmer Ivan Applegate 1923-8-23 3844 Siskiyou Medicine Lake Comment
  JEPS117878  Deschampsia atropurpurea unknown 1976-9-21 Siskiyou Lower Squaw Valley Cr. Mdw. Mt. Shasta 2249 Comment
  HSC26549  Deschampsia cespitosa J. P. Smith, Steve Selva 1970-7-18 4482 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  HSC69102  Deschampsia cespitosa Maralyn A. Renner 1980-8-4 2228 Siskiyou Flint Valley 1390 Comment
  SEINET4344614 Image available Deschampsia cespitosa Unknown 1990-7-14 9305 Siskiyou E side Mt Eddy ca 4 airmiles due W of Mt Shasta City, at streamlet near end of FR 41N53 ca 1 mile N of Morgan Meadows, Steep E-facing serpentine hillside. 1676 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
  UC535951  Deschampsia cespitosa subsp. cespitosa Elmer I. Applegate 1923-8-19 3895 Siskiyou Medicine Lake 1981 Comment
  HSC103044  Deschampsia danthonioides J. P. Smith 2014-6-7 13902 Siskiyou Along Forest Service Road 40N08, just north of Big Carmen Lake 1699 Comment
  CAS-BOT-BC201933  Deschampsia elongata L. P. Janeway 1983-9-11 662 Siskiyou Siskiyou Mountains; at Poker Flat 1524 Comment
  CAS-BOT-BC201943  Deschampsia elongata A. A. Heller 1915-7-18 12134 Siskiyou Metcalf's ranch, base of Mt. Eddy Comment
  HSC99934  Deschampsia elongata J. P. Smith, & J. O. Sawyer 2011-7-31 13354 Siskiyou Sugar Creek Trail W of Callahan 1463 Comment
  POM161565  Deschampsia elongata Geo D. Butler 1909-6-20 840 Siskiyou Damp land near Yreka Comment
  UC1950437  Deschampsia elongata Barbara Ertter 1990-7-14 9335 Siskiyou where several forks join before a steep drop; Wagon Creek on E side of Mt Eddy, ca 4 airmiles W of Mt. Shasta City Comment
  RSA184719  Descurainia obtusa subsp. adenophora Gilbert Muth 1966-7-19 426 Siskiyou Meadow above horse pasture, Marble Mtns. 1805 Comment
  CAS-BOT-BC402473  Dicentra formosa subsp. formosa Lewis S. Rose 1925-7-27 s.n. Siskiyou Shasta Springs Comment
  RSA297039  Dicentra formosa subsp. formosa John F. Emmel 1974-7-19 516 Siskiyou Wet meadow 0.2 air mile west of Lily Pad Lake, Siskiyou Mountains. 1753 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
  UC375155  Dichelostemma multiflorum Geo. D. Butler 1909-7-20 887 Siskiyou Highland Mine Salmon Range 1828 Comment
  UC593509  Dichelostemma multiflorum E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1941 Siskiyou about 8 mi s Yreka 822 Comment
  HSC46229  Dichelostemma multiflorum Jennifer Whipple 1978-6-5 2340 Siskiyou Weston Gulch in Scott Valley 854 Comment
  CAS-BOT-BC291008  Dieteria canescens var. shastensis L. E. Smith 1915-8-1 s.n. Siskiyou Bray 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
  UCD70188  Dieteria canescens var. shastensis D. Sanchez-Mata 1997-9-18 s.n. Siskiyou Mount Shasta-Lake Siskiyou-Gumboot Lake. South Fork (Sacramento River) Road. 1340 Comment
  CAS-BOT-BC153658  Diplacus jepsonii A. A. Heller 1922-7-15 13702 Siskiyou At Medicine Lake 2133 Comment
  CAS-BOT-BC153457  Diplacus layneae Geo. D. Butler 1910-6-19 1585 Siskiyou Goosenest foothills 1524 Comment
  SEINET8245390  Diplacus nanus David M. Thompson 1989-6-28 1022 Siskiyou 10.0 mi ne of Weed along Hwy 97, nw side of road. 1150 Comment
  UC375202  Disporum hookeri Geo. D. Butler 1908-8-24 93 Siskiyou Eldredge's Corral, Russian Creek Russian Creek; Eldredge's Corral, Russian Creek Comment
  RSA238726  Dodecatheon alpinum subsp. majus Frederick W. Oettinger 1966-8-7 45 Siskiyou Below Tom Taylor Cabin Springs. The Salmon Mountains. The High Lake Basins in the vicinity of English peak. Marble Mountain Wilderness Area. 2043 Comment
  UC1053435  Dodecatheon hendersonii Rimo Bacigalupi, Arthur Holmgren 1950-4-24 3139 Siskiyou opposite town Dunsmuir (on e side of canyon, Cliffs along Sacramento River); along Sacramento River, opposite Dunsmuir Comment
  POM76574  Dodecatheon hendersonii Geo. D. Butler 1230 Siskiyou Pine woods, Quartz Valley Comment
  HSC68410  Dodecatheon jeffreyi Maralyn A. Renner 1980-7-4 1412 Siskiyou Near trail about 0.25 mi. below Rattlesnake Meadow. 1585 Comment
  CHSC118450  Dodecatheon jeffreyi Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016 -028 Siskiyou Lower Parks Creek watershed, E Klamath Range; slope above Forest Service Road 42N19, 4 miles northwest of Stewart Springs. UTM NAD 83 Zone 10, 539166m E, 4587170m N. 1529 Comment
  CHSC71478  Downingia pulcherrima Vernon H. Oswald; Lowell Ahart 1998-7-21 9333 Siskiyou Northeast of Weed and east of Grass Lake at a gravel pit on the south side of Tennant Rd. 0.4 mi southeast of Old State Hwy. to Bray. 1402 Comment
  JEPS19784  Downingia pulcherrima Rimo Bacigalupi with S. Galen Smith 1957-6-26 5937 Siskiyou about 2.5 mi nw Weed (close to U.S. Highway 99) 1005 Comment
  JEPS94842  Downingia pulcherrima Vernon H. Oswald and Lowell Ahart 1998-7-21 9333 Siskiyou on s side of Tennant Road 0.4 mi se of Old State Highway to Bray (ne of Weed and e of Grass Lake at a gravel pit); s side of Tennant Road 1402 Comment
  CAS-BOT-BC210237  Draba pterosperma Dana York 2011-8-12 3038 Siskiyou Marble Mountain Wilderness. Klamath National Forest, Marble Mountain 2075 Comment
  SEINET4852968  Draba pterosperma G. D. Butler 1910-7-10 1716 Siskiyou Marble Mountain. 1677 Comment
  UC1360449  Draba pterosperma Jack Major, M. Fleschner, and R. Pemble 1966-9-4 Siskiyou ne face of Marble Mountain Marble Mountains, ne face Marble Mountain 2133 Comment
  UC375383  Drymocallis Geo. D. Butler 1908-8-5 348 Siskiyou summit above Cold Spring; Woolly Creek, summit above Cold Spring Comment
  CAS-BOT-BC159286  Drymocallis lactea var. lactea David Keck 1938-6-24 11070 Siskiyou MacBridge Springs - Mount Shasta 1524 Comment
  HSC90742  Drymocallis lactea var. lactea Jennifer Whipple 1976-7-8 1372 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC609347  Drymocallis pseudorupestris var. saxicola Eleanor Burks Hart 1938-8-18 931 Siskiyou western slope of Boulder Peak 2529 Comment
  UC1597992  Dryopteris arguta Alan R. Smith with Christopher Richard, C. Don MacNeill, and Bernard Stoffel 1993-5-9 2550 Siskiyou ca. 1 mi n Hardin Butte (Jack William Cave along Powerline Rd, adjacent to Rd on E side); Lava Beds Nat'l Monument 1280 Comment
  UC1593363  Dryopteris expansa Alan Smith with Chris Richards, C. Don Macneill, Janet Sowers, Bob Martin, Pat Toops, and Barney 1992-6-6 2541 Siskiyou at base of entrance pit Fossil Cave; Lava Beds Nat'l Monument 1280 Comment
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May 30 2013
  CAS-BOT-BC112979  Eleocharis macrostachya David Daniels Keck 1949-7-20 6370 Siskiyou Scott Valley, 6 mi N of Callahan. Comment
  CHSC88377  Eleocharis macrostachya Jenny Marr 1993-7-1 183 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC112776  Eleocharis macrostachya Henry Knut[e] Svenson 1939-6-23 13517 Siskiyou Meadow at Bear Springs, Mt. Shasta. 1524 Comment
  SEINET5718064 Image available Eleocharis montevidensis Philip E. Hyatt 2002-1 11140 Siskiyou Happy Camp community. Along Klamath River. Collected while departing work on the Stanza Fire (Happy Camp) as a Base Camp Manager. In memory of engine E-11 Lassen NF; John Self, Hether DePaulo, Steve Ousatd. Happy Camp Elementary School Grounds; wet area, sewer smell, downslope form main school building in mown lawn. 41 deg. 47" 37.5" 123 deg. 22" 24.3". [See postcard.]; Klamath River Comment
  JEPS19432  Eleocharis obtusa Geo. D. Butler 1908-8-28 7 Siskiyou Oro Fino Comment
  UC1265457  Eleocharis suksdorfiana Frederick W. Oettinger 1969-8-19 1453 Siskiyou ridge between David Mountain and Abbotts Lake Basin Salmon Mountains, Marble Mountain Wilderness Area (high lakes basins in the vicinity of English Peak) 1905 Comment
  CAS-BOT-BC451560  Elodea canadensis Alice Eastwood No date on label 1268 Siskiyou Sisson Comment
  CHSC91371  Elymus cinereus Lowell Ahart; John Dittes 2005-6-10 12109 Siskiyou Steep slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  CAS-BOT-BC227919  Elymus elymoides Elmer I. Applegate 1923-8-18 3862 Siskiyou Top of Redshale Mountain, Medicine Lake region 2438 Comment
  RSA211383  Elymus elymoides William J. Ferlatte 1966-8-4 316 Siskiyou Yellow Rose Mine 1982 Comment
  RSA239037  Elymus elymoides Frederick W. Oettinger 1968-8-8 455 Siskiyou Crapo Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2165 Comment
  RSA210772  Elymus elymoides Jim Henrickson, C. W. Tilforth 1969-9-3 39037 Siskiyou Margin of desiccated alkali flat along Hwy 161 on N side of Lower Klamath Lake, Lake Klamath National Wildlife Refuge, 1.9 mi. E of junction of Hwys 97 and 161l with Chenopodium rubrum, Atriplex argentea expansa. etc. Comment
  HSC69327  Elymus glaucus John S. Palmer 1980-8-12 739 Siskiyou Road to Bearground Spring from Beaver Creek Rd. 1341 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
  UC593548  Elymus glaucus E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1895 Siskiyou flat about 2 mi s Yreka 810 Comment
  HSC41378  Elymus multisetus J. P. Smith 1976-5-22 8786 Siskiyou Callahan Rd. along the E side of Scott Valley 1037 Comment
  RSA273424  Elymus multisetus J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1934-7-4 5734 Siskiyou 2.0 miles south of Sugar Creek on Parrot Mill Road 1341 Comment
  UC196945  Elymus multisetus Geo. D. Butler 1910-5-26 1424 Siskiyou Yreka Comment
  HSC68524  Elymus spicatus Maralyn A. Renner 1980-6-23 995 Siskiyou W Fork Seiad Creek 878 Comment
  UCD35446  Elymus trachycaulus Beecher Crampton 1956-8-22 3867 Siskiyou South slope of Mt. Shasta. 1645 Comment
  HSC9739  Elymus triticoides L. C. Wheeler 1934-9-22 3293 Siskiyou Walker, Klamath River 518 Comment
  SEINET3149797  Epilobium adenocaulon G. D. Butler 1910-6-22 1598 Siskiyou Ireka Creek Comment
  SEINET6635547 Image available Epilobium angustifolium subsp. circumvagum A. A. Heller 1916-1 12434 Siskiyou near Black Butte N of Sisson 1128 Comment
  HSC215  Epilobium brachycarpum William J. Ferlatte 1966-8-2 239 Siskiyou Big Flat, wooded area near public camp 1524 Comment
  HSC78225  Epilobium brachycarpum L. P. Janeway 1983-8-28 641 Siskiyou Poker Flat 1529 Comment
  UC618663  Epilobium brachycarpum W. Bridge Cooke 1938-7-22 11321 Siskiyou along the road near end of Sisson Southern Trail; Mount Shasta Comment
  JEPS43612  Epilobium brachycarpum Geo. D. Butler 1908-8-6 135 Siskiyou trail near Summit (se of Marble Mountain) 1828 Comment
  POM251091  Epilobium brachycarpum W. Bridge Cooke 1938-7-22 11321 Siskiyou Mt. Shasta. 1372 Comment
  UCR47857  Epilobium ciliatum 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
  HSC19479  Epilobium ciliatum subsp. ciliatum J. O. Sawyer 1969-7-23 1446 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  HSC24684  Epilobium ciliatum subsp. ciliatum J. O. Sawyer 1969-8-4 1793 Siskiyou Along C.C.C. road 1341 Comment
  UC422939  Epilobium ciliatum subsp. ciliatum H. W. Furlong Sept. 1901 Siskiyou Summit to Ager Comment
  POM171585  Epilobium ciliatum subsp. ciliatum Doris K. Kildale 1928-7-3 5423 Siskiyou Forks of Salmon, Salmon River 366 Comment
  RSA8244  Epilobium ciliatum subsp. ciliatum Elmer I. Applegate 1923-9-6 s.n. Siskiyou Doggett Creek, Klamath River Comment
  POM251087  Epilobium ciliatum subsp. glandulosum W. Bridge Cooke 1938-8-19 11530 Siskiyou Bear Springs, Mount Shasta 1524 Comment
  RSA184734  Epilobium ciliatum subsp. glandulosum Gilbert Muth 1966-8-1 483 Siskiyou Marble Valley Horse Pasture, Marble Mountains. 1793 Comment
  HSC64496  Epilobium densiflorum J. P. Smith, Steve Selva 1970-7-17 4414 Siskiyou Along Klamath River. Comment
  SEINET515876  Epilobium densiflorum Vernon H. Oswald 1998-9-8 9604 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi W of mosquito Lake and Whitehorse Flat Reservoir. 1113 Comment
  UC164046  Epilobium densiflorum Geo. D. Butler 1910-6-29 1614 Siskiyou Yreka Creek Comment
  UC971917  Epilobium densiflorum Herbert L. Mason 1950-7-15 14045 Siskiyou Scott Creek Scott Valley (stream wash) Comment
  HSC68572  Epilobium glaberrimum Maralyn A. Renner 1980-6-23 696 Siskiyou W Fork Seiad Creek 878 Comment
  POM258978  Epilobium glaberrimum subsp. glaberrimum W. Bridge Cooke 1940-8-8 15417 Siskiyou Mt. Shasta: along Squaw Valley Creek below McCloud water supply intake 1372 Comment
  RSA50228  Epilobium glaberrimum subsp. glaberrimum E. K. Balls 1949-7-9 13936 Siskiyou 8.3 miles from Etna on road to Sawyer s Bar. 1006 Comment
  UC618799  Epilobium hornemannii subsp. hornemannii W. Bridge Cooke 1938-7-15 11257 Siskiyou Wagon Camp Mount Shasta (creek in upper meadow) Comment
  RSA142623  Epilobium hornemannii subsp. hornemannii P. A. Munz 1960-8-22 24180 Siskiyou Panther Meadows, Mt. Shasta 2378 Comment
  RSA237389  Epilobium hornemannii subsp. hornemannii Frederick W. Oettinger 1968-8-10 463 Siskiyou Stream inlet into Hancock Lake. Salmon Mountains; the High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area 1890 Comment
  UCD105960  Epilobium minutum Jesse Miller 2010-1 s.n. Siskiyou Near Yreka.. 1219 Comment
  HSC49642  Epilobium minutum J. P. Smith, Steve Selva 1970-6-16 4038 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  JEPS82422  Epilobium oreganum Gilbert Muth 1966-8-1 483 Siskiyou Marble Valley horse pasture Marble Mt. Wilderness Area 1792 Comment
  RSA237393  Epilobium oregonense Frederick W. Oettinger 1968-9-7 758 Siskiyou Near Tobacco Lake. The Salmon Mountains, the High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area 1890 Comment
  SD61057  Epilobium paniculatum Darley F. Howe 1964-8-5 3940 Siskiyou 3.7 miles south of north entrance to Klamouth National Forest on Highway 97. 1584 Comment
  HSC216  Epilobium siskiyouense William J. Ferlatte 1966-8-4 303 Siskiyou Dorleska summit 2134 Comment
  HSC46111  Epipactis gigantea J. P. Smith, Steve Selva 1970-6-15 3986 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  CAS-BOT-BC58009  Equisetum A. A. Heller 1920-8-11 13508 Siskiyou Metcalf's Ranch, ne. base of Mt. Eddy. 1158 Comment
  SEINET192292 Image available Equisetum hyemale W. B. Cooke 1941-8-28 16227 Siskiyou Near the Big Squaw Valley Creek spring above McCloud Mt Shasta 1464 Comment
  CAS-BOT-BC204510  Eragrostis cilianensis Dorothy Parker 1948-8-24 86 Siskiyou Along the road in Plowman's Valley 1188 Comment
  CAS-BOT-BC204512  Eragrostis cilianensis Saxton; Canfield 1922-7-21 45 Siskiyou Klamath National Forest. Rainey Ranch Comment
  HSC619  Eremogone congesta William J. Ferlatte 1966-8-5 330 Siskiyou N side of Caribou Mtn. 1982 Comment
  HSC8  Eremogone congesta William J. Ferlatte 1966-6-23 121 Siskiyou Dorleska Summit 2134 Comment
  RSA0045086  Eremogone congesta Geo. D. Butler 1910-7-13 1772 Siskiyou Shackleford Creek. 1220 Comment
  CAS-BOT-BC174228  Eremogone congesta var. congesta Geo. D. Butler 1910-7-13 1772 Siskiyou Shackleford Creek 1219 Comment
  CAS-BOT-BC174231  Eremogone congesta var. congesta M. B. Dunkle 1945-7-22 7238 Siskiyou Klamath National Forest. Big Elk Lake basin, Wooley Pocket 2072 Comment
  UC134298  Ericameria bloomeri Dr. E. B. Copeland 1903-9-8 3922 Siskiyou Igerna 1158 Comment
  UC134300  Ericameria bloomeri unknown Siskiyou near timberline Sisson Comment
  HSC24683  Ericameria greenei J. O. Sawyer 1969-9-11 2001 Siskiyou On E-facing slope above Duck Lake Creek 1905 Comment
  RSA178673  Ericameria greenei A. A. Heller 1927-8-1 14438 Siskiyou Along the base of Spring Hill near the town of Mt. Shasta on the headwater of the Sacramento River. Comment
  CAS-BOT-BC287501  Ericameria greenei W. R. Dudley 1899-8-26 s.n. Siskiyou Toward top of Sacramento and Trinity Divide Comment
  HSC2236  Ericameria nauseosa Geo. D. Butler 1910-8-15 1839 Siskiyou Shasta Valley Comment
  SD60211  Ericameria parryi var. latior A. A. Heller 1927-8-1 14438 Siskiyou Along the base of Spring Hill near the town of Mt. Shasta on the headwater of the Sacramento River. Comment
  CAS-BOT-BC293507  Erigeron aliceae C. L. Hitchcock; J. S. Martin 1939-7-6 5202 Siskiyou Siskiyou Mts., 2 miles within California boundary on Takilma-Happy Camp road 1554 Comment
  RSA238724  Erigeron aliceae Frederick W. Oettinger 1968-9-5 725 Siskiyou Southeast side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  CAS-BOT-BC294499  Erigeron bloomeri var. bloomeri John Thomas Howell 1937-7-29 13644 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  CAS-BOT-BC294504  Erigeron bloomeri var. bloomeri A. A. Heller 1921-7-7 13567 Siskiyou On Mt. Eddy on the long gravelly slope west of Wagon Creek 2133 Comment
  HSC23629  Erigeron cervinus J. O. Sawyer 1969-8-4 1839 Siskiyou Above Sugar Lake 2134 Comment
  UC75816  Erigeron compositus Milo S. Baker 1899-7-31 Siskiyou above Warren and Andersons Mill Ash Creek (e slope of Mt. Shasta); Mt. Shasta, Ash Creek Comment
  JEPS107396  Erigeron divergens Lowell Ahart, John Dittes 2005-6-10 12080 Siskiyou South edge of irrigated pasture, about 80 yards northeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  CAS-BOT-BC300477  Erigeron filifolius H. M. Hall; E. B. Babcock 1903-6-1 4098 Siskiyou Sierra Nevada Mountains. Mount Shasta, Little Shasta Valley 853 Comment
  HSC5515  Erigeron filifolius R. C. Wunner 1965-6-29 304 Siskiyou Lava Beds National Monument, near upper Caldwell Ice Cave entrance 1433 Comment
  SDSU3937  Erigeron filifolius D. F. Howe 1972-7-8 4879 Siskiyou 9.5 miles north of Weed on #97. 1158 Comment
  POM357595  Erigeron foliosus var. foliosus M. B. Dunkle 1945-07 9244 Siskiyou Klamath National Forest; Marble Mts. Comment
  HSC19465  Erigeron glacialis var. glacialis J. O. Sawyer 1969-8-18 1980 Siskiyou S of S Sugar Lake 2104 Comment
  JEPS84323  Erigeron glacialis var. glacialis L. R. Heckard with J. Hickman et al. 1986-7-17 6475 Siskiyou trail up Kangaroo Peak (s of Lily Pad Lake, ca 5 mi n of town of Seiad Valley, in a n-facing cirque) 1800 Comment
  CAS-BOT-BC295395  Erigeron inornatus Dr. E. B. Copeland 1903-7-3 3531 Siskiyou Klamathon Comment
  SEINET5708482 Image available Erigeron inornatus var. inornatus Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7702 Siskiyou Scott Mtns. Collected along Road 17, 11.8 mi SW from the intersection of I-5 and Stewart Spring Rd.; Scott Mountains 1955 Comment
  UC618633  Erigeron inornatus var. inornatus unknown 1938-7-22 11326 Siskiyou Mount Shasta Mount Shasta (Sisson Southern Trail) 1371 Comment
  UC895897  Erigeron inornatus var. inornatus Alice Eastwood 1912-7-15 1118 Siskiyou McCloud Comment
  HSC30278  Erigeron inornatus var. inornatus William J. Ferlatte 1971-9-19 1386 Siskiyou N flank of Caribou Mtn. 1829 Comment
  JEPS84319  Erigeron klamathensis L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6367 a Siskiyou ca 7 mi nne of Seiad Valley, w of Cook and Green Pass. ca 1900 m. ca .5 mi e Red Butte summit Comment
  JEPS89687  Erigeron nivalis Dean Wm. Taylor, Rexford E. Palmer, Glenn L. Clifton 1987-8-9 9267 Siskiyou Medicine Lake Area, on s wall of Alcohol Crater, extreme northeastern portion of county Alcohol Crater; Medicine Lake Area, Alcohol Crater 2072 Comment
  RSA215642  Erigeron peregrinus subsp. callianthemus Gilbert Muth 1969-8-7 1266 Siskiyou Boulder Peak Ridge 2470 Comment
  HSC92619  Erigeron petrophilus var. viscidulus Jennifer Whipple 1977-8-6 2221 Siskiyou Dobkins Lake drainage on E facing slope above Dobkins Lake 2256 Comment
  JEPS118703  Erigeron petrophilus var. viscidulus Julie Kierstead Nelson, Eric White, Rhonda Posey, Mary Ellen Colberg, Sasha Flamm 2010-8-9 2010 -028 Siskiyou East slope of Mount Eddy, headwaters of Wagon Creek. Mount Eddy 7.5' quad. Comment
  UC1285745  Erigeron petrophilus var. viscidulus Annie M. Alexander and Louise Kellogg 1911-8-12 307 Siskiyou near Toad Lake 2072 Comment
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Nov 28 2018
  CAS-BOT-BC300083  Erigeron philadelphicus W. B. Cooke; V. G. Cooke 1962-8-19 33551 Siskiyou McBride Springs, Mt. Shasta Comment
  RSA12509  Erigeron philadelphicus C. B. Wolf 1934-7-4 5927 Siskiyou 0.7 mi. below mouth of Dillon Creek, Klamath River. 244 Comment
  CHSC71471  Erigeron pumilus var. intermedius Vernon H. Oswald; Lowell Ahart 1998-7-21 9331 Siskiyou Northeast of Weed and east of Grass Lake at a gravel pit on the south side of Tennant Rd. 0.4 mi southeast of Old State Hwy. to Bray. West edge of pit. 1402 Comment
  UCD77639  Erigeron tener Robert E. Preston 2001-7-21 1715 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, T42N R1W ne 1/4 Section 22 2072 Comment
  CHSC8614  Eriodictyon californicum G. Smalley 1967-6-7 Siskiyou Collected ca. 9 miles w of Fort Jones on Quartz Mt. 1280 Comment
  POM104935  Eriogonum compositum var. compositum Geo. D. Butler 1910-5-21 1378 Siskiyou Klamath hills Comment
  UC1282033  Eriogonum congdonii Louise Kellogg Aug 8 1953-Aug 9 1953 124 Siskiyou Blue Point, a serpentine outcrop near Scott Mountain Public Campground; Klamath National Forest 1630 Comment
  HSC35789  Eriogonum diclinum J. O. Sawyer 1969-7-2 1001 Siskiyou E of Twin Lakes 2195 Comment
  UC375314  Eriogonum elatum Geo. D. Butler 1908-7-5 516 Siskiyou dry land near Yreka Comment
  UCR37557  Eriogonum elatum L. P. Janeway 1983-9-22 688 Siskiyou Ridge NW of Poker Flat (the Siskiyou creast) 1585 Comment
  JEPS24036  Eriogonum elatum var. elatum Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6900 Siskiyou Poker Flat Siskiyou Mountains, Poker Flat 1536 Comment
  UCD77675  Eriogonum hirtiflorum Robert E. Preston 2000-6-23 1380 a Siskiyou East edge of Juniper Flat, north of Yellow Butte, along A12, 2.1 mi n of Hwy 97, T43N R4W nw 1/4 of nw 1/4 Section 24 1100 Comment
  RSA237798  Eriogonum lobbii var. lobbii Frederick W. Oettinger 1968-8-5 407 Siskiyou Ridge between English Peak and Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  HSC72370  Eriogonum luteolum J. P. Smith, J. O. Sawyer, Jane Sawyer, Kevin Sawyer 1976-9-5 8979 Siskiyou 1/5 mi. W of Hwy. 3 on Road 8 671 Comment
  HSC43463  Eriogonum marifolium Jennifer Whipple 1976-6-25 1582 Siskiyou N slopes of Mt. Eddy 2561 Comment
  HSC43464  Eriogonum marifolium Jennifer Whipple 1977-7-20 1994 Siskiyou N slopes of Mount Eddy 2500 Comment
  UC77434  Eriogonum marifolium Wm. M. Canby, Profs. C. S. Sargent and John Muir 1897-9-7 230 Siskiyou Mt. Shasta Comment
  UC917320  Eriogonum marifolium R. Tofsrud and J. M. Tucker 1948-8-2 1761 Siskiyou Panther Meadows, s slope of Mt. Shasta Mt. Shasta, Panther Meadows 2407 Comment
  RSA0049748  Eriogonum marifolium var. cupulatum Dean Wm. Taylor 2012-8-22 21301 Siskiyou Mt. Shasta vicinity; Pilgrim Creek Snowmobile Park, growing on the north shoulder Pilgrim Creek Road (Forest Road 12) about 200 meters east thereof; Shasta-Trinity National Forest 1210 Comment
  HSC69233  Eriogonum nudum Maralyn A. Renner 1980-9-1 2713 Siskiyou S side of Devil's Punchbowl 1829 Comment
  HSC75192  Eriogonum nudum var. nudum K. T. Stillman 1976-8-7 380 Siskiyou Marble Mtn. Wilderness Area 2195 Comment
  JEPS95655  Eriogonum nudum var. nudum Vernon H. Oswald and L. Ahart 1999-7-5 9824 Siskiyou Hwy. 3 on Scott Mtn. 5.9 mi southeast of Gazelle-Callahan Hwy., 0.6 mi northwest of the highway summit: T40N R7W Sect. 32, 5150 ft, mixed coniferous forest 1569 Comment
  CHSC70766  Eriogonum nudum var. pubiflorum A. Francis 1996-7-24 3639 Siskiyou South slope of Mt. Hoffman, NE of Arnica Sink. 2109 Comment
  HSC43015  Eriogonum nudum var. pubiflorum J. P. Smith 1973-5-5 6440 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  UC375313  Eriogonum nudum var. pubiflorum Geo. D. Butler 1908-7-5 213 Siskiyou near Yreka Comment
  UC646552  Eriogonum nudum var. pubiflorum Reed C. Rollins and T. S. Chambers 1938-8-14 2720 Siskiyou 3 mi s Hornbrook 914 Comment
  UC849497  Eriogonum nudum var. pubiflorum Lewis S. Rose 1937-7-26 37601 Siskiyou 3 mi e Mt. Shasta City 1371 Comment
  RSA50182  Eriogonum nudum var. pubiflorum E. K. Balls 1949-7-8 13925 Siskiyou Etna Public Camp, southern Siskiyou County 851 Comment
  CAS-BOT-BC258743  Eriogonum ovalifolium var. ovalifolium A. A. Heller 1938-7-13 15272 Siskiyou About a mile south of Bray 1402 Comment
  POM253225  Eriogonum ovalifolium var. ovalifolium A. A. Heller 1938-7-13 15272 Siskiyou Border of meadows just south of Bray. 1402 Comment
  RSA142605  Eriogonum pyrolifolium var. pyrolifolium P. A. Munz 1960-8-22 24195 Siskiyou Panther Meadows, Mount Shasta 2530 Comment
  UCD101262  Eriogonum spergulinum var. reddingianum J. M. Tucker 1950-7-24 1955 Siskiyou at Ash Creek crossing on the Military Road, east side of Mt. Shasta. Comment
  RSA423132  Eriogonum sphaerocephalum Louis C. Wheeler 1934-9-19 3282 Siskiyou Hot dry south slope. Oak Knoll Ranger Station. Klamath River. 671 Comment
  CAS-BOT-BC271963  Eriogonum sphaerocephalum var. halimioides M. K. Curran 1887-7-1 s.n. Siskiyou Gazelle Comment
  CAS-BOT-BC262753  Eriogonum strictum var. anserinum Elmer I. Applegate 1932-6-8 9441 Siskiyou Bear-paw [Bearpaw] Cave, Lava Beds National Monument Comment
  CAS-BOT-BC263385  Eriogonum strictum var. proliferum Arthur Menzies 1962-7-21 s.n. Siskiyou Mt. Eddy 2529 Comment
  CAS-BOT-BC263393  Eriogonum strictum var. proliferum Geo. D. Butler 1910-5-27 1417 Siskiyou Near Yreka Comment
  HSC43455  Eriogonum strictum var. proliferum Jennifer Whipple 1977-8-4 2151 Siskiyou Wagon Creek drainage on the E face of Mt. Eddy 2439 Comment
  HSC69141  Eriogonum umbellatum Maralyn A. Renner 1980-8-8 2476 Siskiyou Klamath National Forest, near trail, ~0.5 mi. down from Rattlesnake Meadow 1555 Comment
  HSC69234  Eriogonum umbellatum Maralyn A. Renner 1980-9-1 2712 Siskiyou S side of Devil's Punchbowl 1829 Comment
  UCD129465  Eriogonum umbellatum Beecher Crampton 1956-8-21 3841 Siskiyou above the Sacramento River, just below the junction of the middle with the south Fork. 1112 Comment
  CAS-BOT-BC267979  Eriogonum umbellatum var. argus John Thomas Howell 1939-8-2 14887 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  JEPS74482  Eriogonum umbellatum var. argus W. J. Ferlatte 1966-8-2 240 Siskiyou wooded area near public camp (Big Flat); Trinity Alps, Big Flat 1524 Comment
  RSA237775  Eriogonum umbellatum var. argus Frederick W. Oettinger 1969-8-25 1548 -a Siskiyou Midway between Tom Taylor Cabin and Little North Fork River trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mt Wilderness Area. 2012 Comment
  HSC43433  Eriogonum umbellatum var. humistratum Jennifer Whipple 1976-7-9 1400 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2226 Comment
  HSC43434  Eriogonum umbellatum var. humistratum Jennifer Whipple 1976-7-14 1468 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  HSC43436  Eriogonum umbellatum var. humistratum Jennifer Whipple 1976-6-30 1188 Siskiyou SE slope of Mt. Eddy, draining into the N Fork of the Sacramento River 2226 Comment
  RSA165616  Eriogonum umbellatum var. nelsoniorum Clare B. Hardham 1961-6-30 7995 Siskiyou Near White Mt. Comment
  LA105219  Eriogonum umbellatum var. umbellatum Steve Morgan; 1987-7-28 sn Siskiyou Mount Shasta, Shasta Trinity National Forest, McGinnis Springs, 5 mi. NW of McCloud Comment
  OBI53732  Eriophyllum lanatum David J. Keil 1992-7-19 23465 Siskiyou Klamath NF. Salmon Mtn Summit on Sawyers Bar Rd, SW of Etna 1816 Comment
  CAS-BOT-BC301114  Eriophyllum lanatum var. achilleoides A. A. Heller 1905-6-8 7992 Siskiyou Yreka Comment
  RSA106204  Eriophyllum lanatum var. achilleoides D. D. Keck 1953-7-31 6535 Siskiyou Deer Mountain Service Station, 3.5 mi. S of Grass Lake. Comment
  UC195247  Eriophyllum lanatum var. achilleoides Annie M. Alexander and Louise Kellogg 1911-6-6 115 Siskiyou Gazelle Comment
  UC507117  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-6-21 E 85 Siskiyou 9 m n Weed Comment
  CAS-BOT-BC301449  Eriophyllum lanatum var. grandiflorum A. A. Heller 1916-6-23 12438 Siskiyou Near Black Butte north of Sisson 1127 Comment
  RSA120934  Eriophyllum lanatum var. integrifolium G. D. Barbe 1957-7-14 392 Siskiyou Salmon River W/S of private road about 1 mile south of boundary-gate of Salmon-Trinity Alps Primative Area, Klamath National Forest, south of Big Flat Public Camp 1524 Comment
  UC563835  Eriophyllum lanatum var. integrifolium Elmer I. Applegate 1935-6-10 9490 Siskiyou s cinder slope of Caldwell Butte; Lava Beds National Monument Comment
  CAS-BOT-BC301713  Eriophyllum lanatum var. lanceolatum Marion Ownbey; Fred G. Meyer 1940-7-4 2174 Siskiyou Siskiyou Mountains, north-west of Hornbrook Comment
  HSC41804  Eriophyllum lanatum var. lanceolatum Brent Whiteley 1975-6-24 60 Siskiyou Near Somes Bar along Salmon River Rd. 235 Comment
  JEPS84050  Eriophyllum lanatum var. lanceolatum L. R. Heckard with J. Hickman et al. 1986-7-17 6479 Siskiyou along road above and w Lily Pad Lake (ca 5 mi n of town of Seiad Valley) 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
  UC163897  Eriophyllum lanatum var. lanceolatum Geo. D. Butler 1908-8-8 344 Siskiyou Shackelford Creek Log Lake Comment
  UC618618  Erodium cicutarium unknown 1938-6-24 11084 Siskiyou MacBride Springs Mount Shasta Comment
  HSC68013  Erodium cicutarium J. P. Smith 1973-5-5 6560 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC54576  Erysimum capitatum L. E. Smith 1914-5-21 701 Siskiyou Yreka. Comment
  UC117673  Erysimum capitatum Mrs. R. M. Austin June 1894 Siskiyou Willow Creek Valley Comment
  CAS-BOT-BC54587  Erysimum capitatum F. D. Douthitt 1919-5-17 12 Siskiyou Rattlesnake Ridge. 1066 Comment
  SJSU2552  Erysimum capitatum H. L. Buckalew 1962-7-14 Siskiyou Poker Flat c. 3 mi W of junction of Indian Cr with W Branch Indian Cr, Siskiyou Mts 1143 Comment
  UC722224  Erysimum perenne C. L. Hitchcock and J. S. Martin 1939-7-9 5313 Siskiyou w side of ridge between King's Castle and Black Mt. 1828 Comment
  CAS-BOT-BC505231  Erythronium grandiflorum D E Breedlove 1962-6-10 3292 Siskiyou Large meadow at Poker Flat, 3 miles west of Indian Creek Road, about 20 miles northwest of Happy Camp 1524 Comment
  HSC62633  Erythronium grandiflorum subsp. grandiflorum Ruby Van Deventer 1938-6-25 Siskiyou Youngs Valley 1524 Comment
  CAS-BOT-BC403677  Eschscholzia californica A. A. Heller 1905-6-9 8002 Siskiyou Yreka Comment
  RSA144848  Eschscholzia californica subsp. californica W. R. Ernst 1958-8-11 301 Siskiyou Town of Mt. Shasta, between Highway 99 and railroad station Comment
  JEPS81781  Eucephalus glabratus Rimo Bacigalupi with Reino and Aloha Alava 1958-9-3 6892 Siskiyou upper edges Poker Flat (very close to the ne portion of Del Norte Co.); Siskiyou Mountains, upper edges of Poker Flat 1536 Comment
  HSC34267  Eucephalus ledophyllus var. ledophyllus J. P. Smith, J. O. Sawyer 1973-8-14 7318 Siskiyou W of Cliff Lake 1982 Comment
  OBI76726  Eucephalus tomentellus G. S. Ringius 1986-8-16 8492 Siskiyou SW of Etna. Etna summit on Forest Hwy 93 1646 Comment
  UC668187  Euphorbia crenulata Joseph P. Tracy 1935-8-1 14410 Siskiyou ridge between Salmon River and New River (at extreme head of West Fork of Knownothing Creek, Rock Lake); Rock Lake, West Fork of Knownothing Creek 1889 Comment
  HSC68016  Euphorbia esula J. P. Smith, Steve Selva 1970-7-17 4446 Siskiyou 915 Comment
  SBBG28444  Euphorbia lathyris L. C. Wheeler 1934-11-4 3358 Siskiyou Scott Bar, Scott River, Marble Mtns 518 Comment
  HSC42922  Euthamia occidentalis Ken Stillman 1976-8-31 462 Siskiyou Along the Klamath River at Williams Point. 366 Comment
  HSC42973  Festuca californica J. O. Sawyer, K. T. Stillman 1976-5-29 2742 Siskiyou Along Specimen Creek 915 Comment
  CHSC71340  Festuca idahoensis Vernon H. Oswald; Lowell Ahart 1998-6-11 9193 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
  HSC25420  Festuca idahoensis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5664 Siskiyou Ridge E of Cook and Green Pass 1524 Comment
  HSC25461  Festuca idahoensis J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5657 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  HSC77105  Festuca idahoensis K. T. Stillman 1976-8-7 177 Siskiyou Marble Mtn. Wilderness Area. Comment
  LA13154  Festuca idahoensis C. L. Hitchcock; J. S. Martin 1939-7-9 5321 Siskiyou Marble Mountains, 0.5 mi SE of King's Castle 1828 Comment
  RSA582090  Festuca idahoensis L. C. Wheeler 1934-6-10 2678 Siskiyou North Hungry Creek. Siskiyou Mountains. 1311 Comment
  RSA656726  Festuca idahoensis Barbara L. Wilson 1996-6-21 8153 Siskiyou Shasta-Trinity National Forest; Coonrod Flat, 1.4 miles straight east of Forest Service road 13 on Forest Service road 40N12. Comment
  SBBG575  Festuca microstachys var. microstachys J. M. Tucker 1947-5-17 1557 Siskiyou ca. 5 mi SE of Callahan on rd to Scott Mtn Comment
  UCD66114  Festuca occidentalis Beecher Crampton 1956-8-21 3814 Siskiyou 15 miles southwest of city of Mount Shasta, slope above Gumboot Lake, headwater of south fork of Sacramento River. 1920 Comment
  RSA656724  Festuca roemeri var. klamathensis Barbara L. Wilson 1996-6-23 8177 Siskiyou Near the Klamath National Forest but in private land, on Forest service road 43N21, half mile west of intersection with Quartz Valley Road. Comment
  HSC69499  Fragaria vesca John Palmer 1980-8-13 763 Siskiyou Klamath National Forest, Dead Cow Creek near F.S. Rd. 47N44 from Beaver Creek Rd. 1616 Comment
  HSC69501  Fragaria virginiana J. O. Sawyer, J. Cole 1980-7-20 3740 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  CAS-BOT-BC447514  Fragaria virginiana var. platypetala Geo. D. Butler 1908-8-10 278 Siskiyou Shackleford Creek 1524 Comment
  HSC19435C  Frangula californica J. O. Sawyer 1969-8-1 1660 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  CAS-BOT-BC53257  Frangula californica subsp. californica Wm. Bridge Cooke 1938-8-5 11436 Siskiyou MacBride Spring Road 1524 Comment
  CAS-BOT-BC59976  Frangula purshiana Alice Eastwood 1921-7-30 11007 Siskiyou Soda Creek. Comment
  CAS-BOT-BC60011  Frangula purshiana Lewis S. Rose 1925-7-25 s.n. Siskiyou Shasta Springs. Comment
  HSC27624  Frangula purshiana Carl W. Mize 1972-7-22 101 Siskiyou 884 Comment
  CAS-BOT-BC59987  Frangula purshiana W. R. Dudley 1899-7-6 s.n. Siskiyou Big Meadow Trail. Comment
  HSC101841  Frangula rubra subsp. obtusissima J. P. Smith, J. O. Sawyer, R. J. Cole 2011-5-22 13179 Siskiyou Matthews Campground on the Cecilville to Forks of Salmon Road. 640 Comment
  CAS-BOT-BC5528  Frasera albicaulis var. nitida Alice Eastwood 1921-7-24 10711 Siskiyou Castle Lake Comment
  CAS-BOT-BC223580  Fraxinus latifolia G. B. Grant 1902-9-13 s.n. Siskiyou Dunsmuir Comment
  CAS-BOT-BC223582  Fraxinus latifolia Laura M. Lathrop 1903-7-1 s.n. Siskiyou Shasta Retreat Comment
  HSC36746  Fraxinus latifolia Brent Whitely 1975-6-22 25 Siskiyou 220 Comment
  JEPS25566  Fritillaria atropurpurea Rimo Bacigalupi with George Bacigalupi Jr. 1959-7-1 7191 Siskiyou just e of Mount Shasta Ski Bowl Lodge (at upper end of Everitt Highway, Mount Shasta); Mount Shasta, Everitt Highway 2346 Comment
  UC13828  Fritillaria atropurpurea Harley P. Chandler June, 1901 1592 Siskiyou near Marble Mountain (North Coast Ranges); North Coast Ranges 1981 Comment
  CAS-BOT-BC504471  Fritillaria recurva Lincoln Constance; Reed C. Rollins 1942-5-14 2925 Siskiyou Road to Walker Post Office, 4 miles west of Yreka 1219 Comment
  CDA42124  Galium aparine G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2624 Siskiyou 200 meters north of Hamilton Street on Highway 3, north edge of Fort Jones. Comment
  HSC76632  Galium bifolium K. T. Stillman 1976-6-25 29 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  RSA238530  Galium bifolium Frederick W. Oettinger 1968-8-18 580 Siskiyou Due N of Tobacco Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1890 Comment
  HSC19068  Galium bolanderi J. O. Sawyer 1969-7-23 1452 Siskiyou Near N Horse Range Creek, along C.C.C. road. 1341 Comment
  POM192703  Galium bolanderi M. S. Baker 1899-7-17 s.n. Siskiyou [Lava?] Beds. Fall River Valley. Comment
  UCR21104  Galium boreale T. W. Fisher, R. E. Orth, Earl Oatman 1974-6-26 s.n. Siskiyou McIntosh Ranch on the McCloud River near Bartle 1220 Comment
  CHSC57454  Galium boreale subsp. septentrionale L. P. Janeway 1984-6-21 861 Siskiyou Garvey Bar, south side Klamath River just east of Humbug Point. 594 Comment
  CHSC106837  Galium glabrescens Barbara Ertter 1990-7-14 9329 Siskiyou Wagon Creek on E side of Mt Eddy, ca 4 airmiles W of Mt Shasta City. N-facing slope S of creek. 1889 Comment
  CAS-BOT-BC540348  Galium glabrescens subsp. glabrescens Dana York 2012-7-20 3117 Siskiyou Siskiyou Mountains: Klamath National Forest, Red Buttes Wilderness, 430 m SSW of Red Butte along a ridge 1950 Comment
  POM253613  Galium glabrescens subsp. glabrescens C. Leo Hitchcock, J. S. Martin 1939-7-6 5228 Siskiyou Peak above and N of Divide of Siskiyou Mts, Takilma Happy Camp road. 1829 Comment
  UC722483  Galium glabrescens subsp. glabrescens C. L. Hitchcock and J. S. Martin 1939-7-6 5228 Siskiyou peak above and n Divide of Siskiyou Mts. (on Takilma-Happy Camp road) 1828 Comment
  HSC81550  Galium serpenticum subsp. scotticum Thomas W. Nelson, Jane P. Nelson 1980-7-21 6158 Siskiyou Along FS Rd. 40N08, 0.6 mi. from junction with Hwy. 3 1646 Comment
  JEPS83624  Galium serpenticum subsp. scotticum Marla Knight 1987-7-16 940 Siskiyou e FS Rd. 40N03 (on s side of creek, slope facing nw at creek crossing); Klamath National Forest, Scott River District, China Mtn. SW 1188 Comment
  JEPS83626  Galium serpenticum subsp. scotticum Marla Knight 1987-7-14 934 Siskiyou FS. Rd. 40N03 about 0.6 mi ne Hwy. 3 (above road at Hayes Gulch); Klamath National Forest, Scott River District, China Mt. SW 1350 Comment
  UC416664  Galium trifidum var. pusillum Milo S. Baker Aug. 1897 143 Siskiyou Payne's Springs Comment
  HSC29316  Galium triflorum Frederick W. Oettinger 1968-8-7 436 Siskiyou Marble Mtn. Wilderness Area, along trail on E side of Hancock Lake 1936 Comment
  CAS-BOT-BC192102  Garrya fremontii C. Hart Merriam 1919-9-26 s.n. Siskiyou Deer Creek, Klamath Canyon (7 miles below Beswick) Comment
  HSC68456  Gaultheria ovatifolia Maralyn A. Renner 1980-7-4 1441 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  RSA238350  Gaultheria ovatifolia Frederick W. Oettinger 1969-7-14 1011 Siskiyou Common along the northern shoreline of Charmaine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  CAS-BOT-BC478506  Gayophytum C. G. Pringle 1881-8-17 s.n. Siskiyou Mount Shasta 2438 Comment
  HSC29482  Gayophytum diffusum subsp. parviflorum Frederick W. Oettinger 1968-8-7 434 Siskiyou Salmon Mtns., E side of Hancock Lake 1890 Comment
  UC1409240  Gayophytum humile Frederick W. Oettinger and R. F. Thorne 1969-8-5 1189 Siskiyou trail <from> English Lake to Abbots (w Siskiyou Co. high lake basins in vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1706 Comment
  JEPS27500  Gayophytum ramosissimum W. L. Jepson 1940-6-23 19998 Siskiyou e of Mayten (e side of Little Shasta Valley); Little Shasta Valley 883 Comment
  HSC91289  Gentiana calycosa Jennifer Whipple 1976-7-24 1562 Siskiyou SW of Dobkins Lake along the drainage into the lake 2256 Comment
  UC456198  Gentiana calycosa I. J. Condit 1909-8-25 Siskiyou Sisson North Fork of Sacramento River 1371 Comment
  HSC29222  Gentiana calycosa Frederick W. Oettinger 1969-8-1 1132 Siskiyou Marble Mtn. Wilderness Area, SE side of Wire Grass Meadow and bordering on English Lake outlet brook. 1677 Comment
  RSA183726  Gentiana calycosa Gilbert Muth 1965-8-6 175 Siskiyou On trail behind Black Mt., Marble Mountains. Comment
  JEPS24352  Gentiana plurisetosa Geo. D. Butler 1908-8-3 419 Siskiyou Log Lake Shackelford Creek 1737 Comment
  SEINET10928363 Image available Gentiana plurisetosa C. C. Harris, Stuart K. Harris 1939-8-29 Harris 976 Siskiyou Half Moon Meadow, Marble Mountain Primitive Area. 1670 Comment
  CHSC78517  Gentianella amarella subsp. acuta Vernon H. Oswald 2000-8-28 9955 Siskiyou East border of Kangaroo Lake. 1853 Comment
  UC1409499  Geum macrophyllum var. perincisum F. W. Oettinger 1969-8-9 1316 Siskiyou near Young's Cabin (Salmon Mountains, western Siskiyou County); Salmon Mountains 1356 Comment
  HSC68523  Gilia capitata Maralyn A. Renner 1980-6-23 988 Siskiyou W Fork Seiad Creek 878 Comment
  CAS-BOT-BC282716  Glyceria elata J. M. Tucker 1963-8-19 3774 Siskiyou Headwaters of Canyon Creek, Marble Mountain Wilderness Area 1950 Comment
  CDA28233  Glyceria elata T. C. Fuller 1975-10-23 20114 Siskiyou North side of Klamath River Hwy, Hwy 96, 1 mile west of Happy Camp. 0 Comment
  UCD66793  Glyceria occidentalis P. B. Kennedy 1923-7-29 Siskiyou By Camp - Sisson. Comment
  UCD77744  Glyceria striata Robert E. Preston 2001-6-23 1545 Siskiyou Klamath National Forest, N slope of Rainbow Mtn. 1706 Comment
  CAS-BOT-BC302673  Gnaphalium palustre John Thomas Howell 1939-8-10 15254 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  HSC19398  Goodyera oblongifolia J. O. Sawyer 1968-9-13 718 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC19435  Goodyera oblongifolia J. O. Sawyer 1969-8-11 2004 Siskiyou Along S French Creek 1692 Comment
  UC166149  Grindelia hirsutula Geo. D. Butler 1908-9-25 499 Siskiyou roadside near Montague Comment
  CDA3423  Gypsophila paniculata T. C. Fuller 1963-8-27 11160 Siskiyou North limits of Macdoel. 0 Comment
  HSC29273  Hackelia bella Frederick W. Oettinger 1968-8-11 476 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: 30 yds. SE of Tom Taylor Cabin 2027 Comment
  RSA238560  Hackelia bella Frederick W. Oettinger 1967-8-13 262 Siskiyou About 30 yards SE of Tom Taylor Cabin. 2043 Comment
  SJSU11499  Hackelia californica M. D. Fleschner 1965-7-13 Siskiyou W of Deadhorse Summit of State Rte 89 c. 6 mi SW of Bartle Comment
  UCD77746  Hackelia californica Robert E. Preston 2001-6-23 1600 a Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 2011 Comment
  UC1063908  Hackelia cusickii M. H. Mitchell 1936-5-21 Siskiyou s of road to Devils Gate Lava Beds National Monument; Modoc National Forest 1310 Comment
  HSC58850  Hackelia micrantha Marvin Butler 1971-7-7 43 Siskiyou Near Mary's Meadow, close to the town of Cave Junction 1464 Comment
  UC1408781  Hackelia micrantha Frederick W. Oettinger 1968-9-2 667 Siskiyou at base of cliffs sw of Upper English Lake (High Lake Basins in the Vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1874 Comment
  RSA184764  Hackelia micrantha Gilbert Muth 1966-7-8 362 Siskiyou Marble Valley Meadow. Marble Mtns. 1793 Comment
  RSA235885  Hackelia micrantha J. L. Gentry Jr., David Vierig 1968-6-17 2063 Siskiyou Siskiyou Mountains, 20.9 miles north of Happy Camp (Calif. Hwy. 96) 1.5 miles from jct. U.S. Forest Roads 1916 & 1916B on road 1916. 1372 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
  CAS-BOT-BC123569  Haplopappus racemosus subsp. pinetorum David Daniels Keck 1938-8-8 4862 Siskiyou Scott Mts., ridge between Milll and Mule creeks, 3 mi SE of Scott Mt. Lodge. 1340 Comment
  HSC44848  Hastingsia alba J. P. Smith, Steve Selva 1970-6-15 3984 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  HSC81616  Hastingsia alba Thomas W. Nelson, Jane P. Nelson 1980-7-19 6208 Siskiyou Along USFS Rd. 40N17 1.0 mi. from junction with Callahan-Cecilville Rd. 1585 Comment
  JEPS30000  Hastingsia alba Rimo Bacigalupi, and L. Heckard, J. Weiler 1961-7-2 7986 Siskiyou n end town Mt. Shasta (Sisson) Comment
  SBBG30578  Hastingsia alba D. Myrick 1968-6-29 2055 Siskiyou Big Flat, head of Coffee Crk; Trinity Alps 1524 Comment
  UCD15032  Hastingsia alba John M. Tucker; and Louis K. Mann 1963-7-7 3722 Siskiyou Marble Mountain Wilderness Area, ca. 1/4 mi. north of Paradise Lake; Comment
  RSA47599  Hastingsia alba Roxana S. Ferris, Laura Lorraine 11730 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  HSC26109  Hazardia whitneyi var. discoidea J. P. Smith, J. O. Sawyer 1972-9-12 Siskiyou Scott Mtn., slopes E of Big Carmen Lake 1982 Comment
  HSC29098  Hazardia whitneyi var. discoidea Frederick W. Oettinger 1967-8-17 276 Siskiyou High Lake Basins near English Peak: Marble Mtn. Wilderness Area; Crapo Ridge where the trail crosses it. 2195 Comment
  JEPS116588  Hazardia whitneyi var. discoidea Julie Kierstead Nelson with Rhonda Posey, Ross Olson 2007-8-1 2007 -026 Siskiyou The Eddys, west of Mt. Shasta. East side of Toad Lake, headwaters of Middle Fork of upper Sacramento River Mt. Eddy 2103 Comment
  CDA6450  Helenium autumnale T. C. Fuller 1958-9-11 1218 -58 Siskiyou 5 miles south of Fort Jones, Scott Valley. 0 Comment
  UCD132684  Helenium autumnale T. C. Fuller 1960-8-23 4966 Siskiyou around 1 mile southeast of Greenview, Scott Valley. Comment
  HSC62634  Helenium bigelovii Ruby Van Deventer 1958-7-12 Siskiyou Young's Valley Comment
  CAS-BOT-BC309577  Helenium puberulum Carl B. Wolf 1927-8-26 1098 Siskiyou On the Klamath River, 14 mi. above Happy Camp Comment
  UC154674  Helianthella californica subsp. nevadensis A. A. Heller 1905-6-1 7941 Siskiyou Shasta Retreat Comment
  HSC103638  Helianthella californica var. shastensis Thomas W. Nelson, Jane Nelson 1985-6-19 7819 Siskiyou In and about Scott Mountain Campground. 1646 Comment
  CAS-BOT-BC305574  Helianthus bolanderi Ynez W. Winblad 1936-8-13 s.n. Siskiyou Dunsmuir Comment
  UCD110544  Hesperolinon micranthum Herbert L. Mason 1950-7-1 14046 Siskiyou Scott Mountain grade on road from Callahan to summit of mountain. Comment
  HSC77759  Heterocodon rariflorum L. P. Janeway 1983-9-11 672 Siskiyou Poker Flat 1524 Comment
  JEPS74414  Heterocodon rariflorum W. B. and V. G. Cooke 1974-8-21 49262 Siskiyou Howard; Mt. Shasta Comment
  SEINET10460707  Heterocodon rariflorum Edwin B. Copel 1903-9-6 Copeland 3847 Siskiyou IGERNA, 3800 Comment
  CAS-BOT-BC311088  Heterotheca oregona var. rudis Geo. D. Butler 1910-7-16 1790 Siskiyou Oro Fino Comment
  SEINET3166883  Heterotheca oregona var. rudis J. C. Semple, S. Heard 1986-8-16 8496 Siskiyou E of Etna. On road to Gazelle, just NE of CA-3; 9.8 km S of road to Managaroo Lake Comment
  SEINET5641915  Heterotheca oregona var. rudis John C. Semple, S. Heard 1986-8-16 8481 Siskiyou Forest Hwy 93, 19.6 km E of Salmon Forks, W of Sawyer's Bar, by Forest Service Rd. 40N42.; 0 Comment
  CAS-BOT-BC420706  Heuchera merriamii Ira L. Wiggins 1955-7-27 13561 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  UC1190182  Heuchera merriamii Ira L. Wiggins 1955-7-27 13561 Siskiyou Caribou Lake; Salmon-Trinity Alps Primitive Area 2042 Comment
  RSA0066186  Heuchera merriamii Frederick W. Oettinger 1968-8-4 386 Siskiyou Trail N of Crapo Peak ridge. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2195 Comment
  RSA0062937  Heuchera micrantha var. micrantha Albert M. Vollmer, L. Beane 1951-6-2 50 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway. Comment
  CAS-BOT-BC319688  Hieracium albiflorum Ira L. Wiggins 1955-7-21 13435 Siskiyou Rush Creek Trail 2 mi. above Mt. View Ranch 1097 Comment
  HSC73226  Hieracium albiflorum Gail Newton 1980-6-20 513 Siskiyou Near Bald Mtn. 1097 Comment
  UC897800  Hieracium albiflorum A. A. Heller 1915-7-18 12122 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  RSA237531  Hieracium gracile Frederick W. Oettinger, R. F. Thorne 1969-8-4 1163 Siskiyou Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC1012436  Hieracium greenei W. Bridge Cooke 1941-8-15 16184 Siskiyou n of Cascade Gulch; Mount Shasta 1676 Comment
  HSC101868  Hieracium horridum R. D. Whittlesey 2013-6-5 6 Siskiyou Near Castella: 3.1 mi. north from State Park entrance up Castle Dome Trail. 1646 Comment
  UC572808  Hieracium horridum unknown 1937-8-17 9257 Siskiyou Mt. Shasta 2590 Comment
  UCD77771  Hieracium horridum Robert E. Preston 2001-8-26 1772 Siskiyou Klamath National Forest, Rainbow Mountain 2072 Comment
  OBI55488  Hieracium scouleri David J. Keil 1992-7-20 23511 Siskiyou Klamath NF, SW of Fort Jones. Along Forest Rd 46N64, 8.2 mi W of Scott River Rd 800 Comment
  UC1409289  Hieracium triste Frederick W. Oettinger 1969-9-5 1673 Siskiyou Upper English Lake; Marble Mountain Wilderness Area. 1798 Comment
  CAS-BOT-BC313000  Hieracium triste Gilbert Muth 1965-8-11 s.n. Siskiyou Marble Valley Comment
  HSC60908  Hieracium triste Al Hobart Siskiyou Black Butte Comment
  UC922282  Hieracium triste Annie M. Alexander and Louise Kellogg 1949-7-29 5896 Siskiyou above Sky High Lake; Marble Mountains. Near Hiddenlake 1859 Comment
  UC688880 Image available Hierochloe odorata Gus Hormay 1944-7-19 Siskiyou Kuck's Cabin, Ball Mountain, west of Mt. Hebron Comment
  RSA449752  Holodiscus boursieri Katherine Curran 1887-09 s.n. Siskiyou Downer Lake, Siskiyou? Comment
  HSC34326  Holodiscus discolor J. P. Smith, J. O. Sawyer 1973-8-14 7309 Siskiyou On trail from Campbell Lake to Cliff Lake 1829 Comment
  HSC58952  Holodiscus discolor Marvin Butler 1971-7-29 240 Siskiyou Near Copper Camp, close to the town of Cave Junction 1464 Comment
  UC860183  Holodiscus discolor John Thomas Howell 1939-8-2 14884 Siskiyou Marble Mountains, Spirit Lake Spirit Lake; Marble Mountains, Spirit Lake Comment
  UCSB40246  Holodiscus discolor var. microphyllus McMinn, Howard 1931-6-27 Siskiyou Shasta City Comment
  CAS-BOT-BC150129  Holodiscus microphyllus var. glabrescens Dorothy Parker 1950-8-6 489 Siskiyou Salmon Mountain 1798 Comment
  RSA597962  Holodiscus microphyllus var. microphyllus Louis C. Wheeler 1963-9-3 8340 Siskiyou Siskiyou Mountains. Cyclone Gap chrome mine. Comment
  CAS-BOT-BC388566  Holosteum umbellatum John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 s.n. Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  SFV1210  Holosteum umbellatum D. Parker 1956-4-23 150 Siskiyou Scott Valley, Hartstrand Gulch. 1067 Comment
  UC1132115  Hordeum brachyantherum subsp. californicum H. S. Yates 1936-6-21 5820 Siskiyou 1 mi se Gazelle; Etna Quad. Comment
  JEPS107284  Hordeum marinum subsp. gussoneanum Lowell Ahart, John Dittes 2005-6-9 12000 Siskiyou Meadow area along a small drainage, on the east side of a poor rock fence, about 300 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada 774 Comment
  POM352503  Hordeum marinum subsp. gussoneanum L. C. Wheeler 1934-6-22 2749 Siskiyou Cottonwood Creek; Siskiyou Mountains; Mt. Diablo Mer. 915 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
  HSC91101  Hordeum murinum subsp. leporinum J. P. Smith 1973-5-5 6547 Siskiyou Scott Bar along the Scott River Comment
  CAS-BOT-BC143957  Horkelia daucifolia L. B. Kildale 1930-6-1 9725 Siskiyou Salmon River between Oak Bottom & Somes Bar Comment
  CAS-BOT-BC143964  Horkelia daucifolia David D. Keck; A. Gustafsson 1938-8-8 4860 Siskiyou On hillside 0.4 mi. S. of Scott Mt. Lodge, near Mill Creek, Scott Mts. 1040 Comment
  UC221642  Horkelia fusca H. E. Brown 1897-7-31 530 Siskiyou S side of Mt. Shasta, Siskiyou Co. Comment
  UC165743  Horkelia fusca subsp. parviflora Geo. D. Butler 1910-9-11 1868 Siskiyou Weed Comment
  HSC26211  Horkelia tridentata var. flavescens J. P. Smith, J. O. Sawyer 1972-5-27 5348 Siskiyou Hwy. 3 near the Scott Mtn. Campground on divide between Scott and Trinity Rivers 1601 Comment
  CDA24878  Hornungia procumbens G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-28 2591 Siskiyou Between Old Highway 99 and railroad 4 km south of Grenada. Comment
  CAS-BOT-BC201126  Hosackia crassifolia Doris K. Kildale 1928-7-2 5390 Siskiyou Salmon Summit via Horn Creek trail 1981 Comment
  CAS-BOT-BC201121  Hosackia crassifolia Wm. Bridge Cooke 1940-7-26 15360 Siskiyou Around the Black Butte Spring Comment
  LA47886  Hosackia crassifolia var. crassifolia Wm. Bridge Cooke; 1940-7-26 15360 Siskiyou Mount Shasta, around the Black Butte Spring 1219 Comment
  UCD77837  Hosackia oblongifolia Robert E. Preston 2002-7-11 1897 Siskiyou Klamath National Forest, Trout Creek Meadow 1505 Comment
  UCD106128  Hosackia oblongifolia A. A. Heller 1915-7-15 12101 Siskiyou Mt. Eddy. Comment
  HSC71654  Hosackia oblongifolia var. oblongifolia J. P. Smith, Steve Selva 1970-6-15 3981 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  UCSB24984  Hydrophyllum tenuipes Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road; 22.2 miles north of Happy Camp 1402 Comment
  RSA12609  Hymenoxys lemmonii C. B. Wolf 1934-7-5 5976 Siskiyou Shasta Valley, 4.6 miles north of Gazelle. 823 Comment
  HSC22101  Hypericum anagalloides J. O. Sawyer 1969-7-11 1333 Siskiyou S Sugar Creek 1829 Comment
  HSC77091  Hypericum anagalloides K. T. Stillman 1976-7-30 334 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  JEPS33847  Hypericum anagalloides Gilbert Muth 1966-8-1 480 Siskiyou Marble Valley horse pasture Marble Mt. Wilderness Area, Marble Valley 1792 Comment
  POM86619  Hypericum formosum var. scouleri Geo. D. Butler 1910-7-3 1627 Siskiyou Creek bank (illegible) foothills. 1220 Comment
  UCD110385  Hypericum perforatum subsp. perforatum Daryl Koutnik; Martha Townsend 1979-9-10 s.n. Siskiyou Southwest of Etna, near Etna Bridge. 1066 Comment
  JEPS796  Ipomopsis aggregata Willis L. Jepson Jul 24 1894-Aug 10 1894 15049 Siskiyou Sisson Comment
  UC23327  Ipomopsis aggregata unknown 1862-9-13 1368 Siskiyou near Mt. Shasta Upper Sacramento Comment
  UC726812  Ipomopsis aggregata A. A. Heller 1938-7-12 15250 Siskiyou 5 mi n Weed (along US Hwy 97) 1066 Comment
  UCD35444  Ipomopsis aggregata Beecher Crampton 1956-8-22 3863 Siskiyou South slope of Mt. Shasta, Wagon Camp Road. 1828 Comment
  POM252974  Ipomopsis aggregata subsp. formosissima A. A. Heller 1938-7-12 15250 Siskiyou 5 miles north of Weed along highway 97 Comment
  UC1034647  Ipomopsis congesta Milo S. Baker 1955-6-26 13081 Siskiyou ca 4 mi s Gazelle (Hwy 99); Klamath Mtns 914 Comment
  CHSC71882  Ipomopsis congesta subsp. congesta Vernon H. Oswald; Lowell Ahart 1998-9-8 9612 Siskiyou Junction of USFS 3 and 24 ca. 2.5 mi west-southwest of Hambone Butte, ca. 30 air mi north of Burney. 1310 Comment
  RSA181799  Iris missouriensis H. N. Metcalf, Jack C. Wilson 1965-7-3 65 -26 Siskiyou Callahan, ca. 2 miles east in creek bottom Comment
  HSC42959  Iris tenuissima J. O. Sawyer, K. T. Stillman 1976-5-30 2756 Siskiyou Along Specimen Creek. 915 Comment
  HSC67517  Iris tenuissima J. P. Smith 1976-5-5 8692 Siskiyou Road from Forks of Salmon to Somes Bar 366 Comment
  HSC69705  Iris tenuissima Maralyn A. Renner 1980-6-26 1261 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  HSC73993  Iris tenuissima Gail Newton 1980-6-20 522 Siskiyou Near Bald Mtn. 1326 Comment
  RSA136363  Iris tenuissima Lee W. Lenz 1953-5-17 18314 Siskiyou 1 mile above junction of Salmon and Klamath Rivers on Klamath River 183 Comment
  RSA139181  Iris tenuissima Lee W. Lenz 1958-6-22 23530 Siskiyou 17 miles from Happy Camp, road to Cave Junction Comment
  UCSB24687  Iris tenuissima Favero, R. 1968-4-28 Siskiyou 1/4 mile south west of Fort Goff on US96 Happy Camp; Klamath Mountains 701 Comment
  SEINET13762155 Image available Isatis tinctoria T. C. Fuller 1960-5-26 4344 Siskiyou Roadside and hillslope, Greenhorn Creek, 1.5 mi. W. Yreka Comment
  JEPS84112  Isoetes bolanderi L. R. Heckard with S. D'Alcamo, and J. Hickman 1986-7-16 6399 Siskiyou ca 5.5 mi n Seiad Valley town (se of Red Butte, Lily Pad Lake); Lily Pad Lake 1740 Comment
  UCD78127  Isoetes bolanderi Robert E. Preston 2002-7-13 1918 Siskiyou Klamath National Forest, Rainbow Lake 1828 Comment
  UC1408843  Isoetes echinospora Frederick W. Oettinger 1968-8-5 708 Siskiyou boreal meadow above Diamond Lake; Salmon Mts, High Lake Basins, English Peak vicinity, Marble 2072 Comment
  UCR113020  Isoetes occidentalis I. Shackleford 1997-7-24 259 Siskiyou Klamath National Forest. Horseshoe Lake Comment
  JEPS93950  Iva axillaris subsp. robustior Vernon H. Oswald and Lowell Ahart 1998-9-16 9631 Siskiyou 5 mi n of Macdoel (Butte Valley National Grassland near junction of Meiss Lake-Sams Neck Road and Hwy 97); Butte Valley National Grassland 1295 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
  JEPS66905  Juncus balticus Geo. D. Butler 1910-5-1 1254 Siskiyou near Yreka Comment
  UCD141342  Juncus balticus subsp. ater Calvin McMillan; Malcom A. Nobs 1949-6-17 805 Siskiyou Grass Lake, Highway 97. Comment
  JEPS66923  Juncus bufonius Geo. D. Butler 1908-7-9 8 Siskiyou near Yreka (Butler Ranch) Comment
  UC637095  Juncus dudleyi Edward Lee 1934-8-11 1025 Siskiyou e end Seiad Valley (Walker Creek, a tributary of the Klamath River); , Klamath River, Walker Creek 457 Comment
  CHSC40143  Juncus ensifolius L. P. Janeway 1983-8-26 613 Siskiyou At Poker Flat. Northwest part of the meadow near the dirt road. 1524 Comment
  JEPS94065  Juncus ensifolius Vernon H. Oswald and Lowell Ahart 1998-8-3 9421 Siskiyou Kangaroo Lake Rd. (USFS 41N08) 3.9 mi. s.e. of Gazelle-Callahan Rd. at its intersection w/ USFS 41N10 1554 Comment
  UC1265483  Juncus ensifolius Frederick W. Oettinger 1969-7-29 1104 Siskiyou n shore Uncle's Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1844 Comment
  UC1601866  Juncus ensifolius W. L. Jepson 1894-1 Siskiyou Mt. Shasta Comment
  UC1618216  Juncus ensifolius Barbara Ertter 1990-7-14 9319 Siskiyou e side of mt. ca 4 air mi due w Mt. Shasta City (at streamlet near end of FR 41N53 ca 1 mi n of Morgan Meadows); Mt. Eddy 1676 Comment
  RSA184628  Juncus ensifolius Clare B. Hardham 1965-8-20 13022 Siskiyou Marble Mountains. Cudahy Lakes. Comment
  HSC774  Juncus nevadensis William J. Ferlatte 1967-8-17 949 Siskiyou Yellow Rose Mine 1982 Comment
  HSC69218  Juncus orthophyllus Maralyn A. Renner 1980-8-31 2625 Siskiyou Twin Valley. 1494 Comment
  RSA238913  Juncus orthophyllus Frederick W. Oettinger 1968-9-6 741 Siskiyou At Bear Meadow mid-way along a straight line between English Peak and Tom Taylor cabin, at the head of Snowslide Gulch. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1997 Comment
  RSA233671  Juncus parryi Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38978 Siskiyou Mt. Shasta National Forest; S slope of Mt. Shasta. 2317 Comment
  POM110819  Juncus xiphioides Geo D. Butler 1910-7-9 1734 Siskiyou Shackleford Creek. 1220 Comment
  HSC31503  Juniperus communis var. saxatilis Steve Selva, Roger Jensen 1974-8-25 51 Siskiyou Top of ridge S of Little Duck Lake Comment
  CDA714  Juniperus occidentalis G. D. Barbe, J. T. Howell, T. C. Fuller 1980-4-29 2633 Siskiyou Roadside at edge of serpentine ridge 16 km south of Fort Jones on Scott Valley East Side Road. Comment
  CHSC25059  Juniperus occidentalis J. L. Wilson 1970-3-23 223 Siskiyou Along e side of Hwy. 7.6 mi n of Yreka on old Interstate 5, 1.5 mi s of intersection of Hwy 96 and Interstate 5. 670 Comment
  UC637101  Juniperus occidentalis Edward Lee 1934-8-9 1013 Siskiyou 6 mi n, above Shasta Creek 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
  POM316064  Juniperus occidentalis var. occidentalis Patricia Wilder 1965-9-29 4192 Siskiyou Lava Beds National Monument at campground 1372 Comment
  SEINET7852090  Kalmia microphylla Unknown 1974-1 48 Siskiyou Little Duck Lake, Siskiyou Co., T40N, R9W, Sec. 19. Meadow at West end of Little Duck Lake. Enriched Mixed Conifer Forest. Comment
  CHSC9488  Kelloggia galioides J. F. Goodwin 1971-7-3 138 Siskiyou 7.7 mi south of Mt. Shasta Ski Bowl area. 1584 Comment
  HSC61499  Kelloggia galioides Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail 1220 Comment
  UC1023831  Kelloggia galioides Douglas Barbe 1955-7-26 289 Siskiyou w of Scott Mt. summit 2042 Comment
  UC1177930  Kelloggia galioides Francia Chisaki and Gene B. Newcomb 1958-6-22 1153 Siskiyou base of Black Butte (Highway 99, e of the road) Comment
  SEINET212850 Image available Koeleria macrantha L. E. Detling 1959-6-7 8213 Siskiyou Brush Cr near Klamath River 716 Comment
  CHSC114323  Lactuca tatarica subsp. pulchella T. C. Fuller 1967-8-15 16260 Siskiyou 4 mi. n.e. of Macdoel, Siskiyou Co. Comment
  HSC71653  Lathyrus latifolius J. P. Smith, Steve Selva 1970-6-17 4096 Siskiyou 3 mi. E of Somes Bar. 152 Comment
  SBBG3355  Lathyrus nevadensis H. and M. Dearing 1938-6-29 2193 Siskiyou Mt Shasta Wagon Camp 1828 Comment
  RSA68869  Lathyrus nevadensis subsp. lanceolatus A. E. Culbertson 1943-7-1 87 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
  UC163718  Lathyrus sulphureus Cassie Quigley 1909-5-8 707 Siskiyou Klamath River Comment
  HSC2191  Leersia oryzoides L. C. Wheeler 1934-9-16 3270 Siskiyou Walker, Klamath River. 518 Comment
  CAS-BOT-BC88863  Lepidium campestre Dorothy Parker 1946-5-1 s.n. Siskiyou Plowman's Valley. 1188 Comment
  CDA36788  Lepidium campestre D. B. Joley 1976-5-13 11 Siskiyou Lake Siskiyou. 0 Comment
  RSA105500  Lepidium campestre G. D. Barbe 1955-6-29 31 Siskiyou 1 mile east of Callahan 976 Comment
  RSA52437  Lepidium montanum var. canescens Dorothy Parker 1948-6-11 s.n. Siskiyou Yreka. Comment
  HSC41630  Lepidium perfoliatum Barbara Kelly 1977-5-21 432 Siskiyou Parking lot at Callahan, next to grocery store Comment
  UCD115842  Lepidium perfoliatum Freed W. Hoffman 1948-7-7 2545 Siskiyou Near junction of Aetna and Ft. Jones roads. Comment
  RSA170201  Lessingia nemaclada Joseph P. Tracy 1949-9-14 18552 Siskiyou At Summerville' on South Fork of Salmon River, 5 miles SE of Cecilville 762 Comment
Read comments
Sep 27 2007
  CAS-BOT-BC58260  Leucothoe davisiae W. B. Stephens 1922-7-9 s.n. Siskiyou Salmon Lake. Comment
  HSC31990  Leucothoe davisiae Steve Selva, Roger Jensen 1974-8-16 15 Siskiyou W end of Sugar Lake Comment
  HSC752  Leucothoe davisiae William J. Ferlatte 1966-8-3 279 Siskiyou Josephine Lake basin. 1677 Comment
  SJSU6542  Leucothoe davisiae R. W. Trivelpiece 1973-6-22 153 Siskiyou trail to Big Duck Lakes, Scott R drainage c. 7 mi W of Callahan 1920 Comment
  HSC4438  Lewisia cotyledon William J. Ferlatte 1967-7-26 744 Siskiyou Caribou Basin 1982 Comment
  HSC76924  Lewisia cotyledon K. T. Stillman 1976-6-26 138 Siskiyou Marble Mtn. Wilderness Area, Kings Castle 2134 Comment
  SBBG30595  Lewisia cotyledon D. Myrick 1968-6-27 2042 Siskiyou trail to Lake Josephine above Carter's Ranch, 5 mi S of Big Flat, head of Coffee Crk 1828 Comment
  SEINET5336464  Lewisia cotyledon W. Roderick 1967-7-24 s.n. Siskiyou N of Seiad Valley. 1676 Comment
  CAS-BOT-BC229458  Lewisia cotyledon var. heckneri Marion Ownbey; Ruth P. Ownbey 1938-7-19 1751 Siskiyou Summit of the Siskiyou Mountains 2 1/2 miles northwest of Dry Lake Lookout Comment
  HSC27348  Lewisia leeana J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5698 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC44986  Lewisia leeana J. O. Sawyer 1978-6-21 3291 Siskiyou Marble Mtn. Wilderness area, ridge above Crapo Meadow 2012 Comment
  RSA211271  Lewisia leeana William J. Ferlatte 1966-7-7 208 Siskiyou Caribou Basin. 1982 Comment
  HSC29445  Lewisia nevadensis Frederick W. Oettinger 1969-7-10 949 Siskiyou Marble Mtn. Wilderness Area, NW of English Lake 1829 Comment
  CAS-BOT-BC444423  Lewisia rediviva Elmer I. Applegate 1937-5-13 11092 Siskiyou South of the Flenner Ranch, Lava Beds National Monument Comment
  HSC77041  Lewisia triphylla K. T. Stillman 1976-6-25 24 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  UC246736  Leymus cinereus H. E. Brown Jul 15 1897-Jul 31 1897 504 Siskiyou Mt. Shasta; s side 1524 Comment
  CAS-BOT-BC272173  Leymus triticoides Louis C. Wheeler 1934-9-22 3293 Siskiyou Walker, Klamath Forest 518 Comment
  UCD127545  Ligusticum californicum A. A. Heller 1915-8-26 12237 Siskiyou Mount Eddy. 1828 Comment
  HSC96299  Ligusticum grayi Gordon Leppig 1998-8-13 1003 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  HSC96433  Ligusticum grayi Gordon Leppig, Tony LaBanca, L. Arguello 1997-6-27 482 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  CAS-BOT-BC130519  Lilium Edna Kelsey 1961-8-1 s.n. Siskiyou Marble Mts. Comment
  RSA105417  Lilium kelleyanum G. D. Barbe 1955-6-29 47 Siskiyou 1.8 miles E of Callahan, S bank of Scott River 976 Comment
  CAS-BOT-BC509385  Lilium kelleyanum A. A. Heller 1915-7-18 12108 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy in moist soil in the forest 1188 Comment
  CAS-BOT-BC130814  Lilium pardalinum Geo. D. Butler 1910-6-6 1454 Siskiyou Quartz Valley Comment
  SD218934  Lilium pardalinum R. 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
  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
  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
  HSC69173  Lilium pardalinum subsp. pardalinum Maralyn A. Renner 1980-8-6 2332 Siskiyou Cracker Meadow 1555 Comment
  UC61185  Lilium washingtonianum subsp. washingtonianum W. A. Setchell, C. C. Dobie 1902-7-16 Siskiyou Sisson; Mount Shasta Comment
  CAS-BOT-BC133097  Lilium washingtonianum subsp. washingtonianum Alice Eastwood 1912-7-22 1301 Siskiyou Sisson Comment
  UCR246373  Limnanthes alba Peter F. Zika 2012-5-14 25854 Siskiyou Klamath Range (KR), I-5 southbound, near exit 730 for central Dunsmuir 750 Comment
  CAS-BOT-BC240390  Linnaea borealis subsp. longiflora Wm. Bridge Cooke 1940-8-8 15421 Siskiyou Moutn Shasta. Along Squaw Valley Creek below the McCloud intake Comment
  CAS-BOT-BC240392  Linnaea borealis subsp. longiflora W. R. Dudley 1899-8-14 s.n. Siskiyou Near McCloud Comment
  UC1045254  Linnaea borealis var. longiflora W. Bridge Cooke 1940-8-8 15421 Siskiyou along Squaw Valley Creek below McCloud intake; Mount Shasta, along Squaw Valley Creek below McCloud intake Comment
  UC139413  Linnaea borealis var. longiflora A. A. Heller 1905-6-17 8056 Siskiyou near Sisson; near Sisson Comment
  HSC61141  Linum lewisii Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  HSC77229  Listera convallarioides L. P. Janeway 1983-7-18 430 Siskiyou 1/4 mi. NE up draw from FS 19N07, 5 mi. from Indian Creek Rd. 1250 Comment
  HSC30487  Listera convallarioides Frederick W. Oettinger 1969-8-12 1334 Siskiyou Salmon Mountains, at the Cedars, along Main N Fork Trail between Yellow Dog Creek and Abbott's Lower Cabin 960 Comment
  CAS-BOT-BC432319  Lithophragma campanulatum Alice Eastwood 1923-5-22 11886 Siskiyou Sisson Comment
  JEPS47687  Lithophragma glabrum J. W. Kisling 1910-1 Siskiyou Edgewood Comment
  SEINET6032568  Lithophragma glabrum G. D. Butler 1910-3-18 1132 Siskiyou Block 5, Yreka Comment
  JEPS47484  Lithophragma parviflorum Geo. D. Butler 1904-4-25 782 Siskiyou Quartz Valley Comment
  CDA40610  Lithospermum ruderale T. C. Fuller 1977-6-14 20215 Siskiyou West side of Highway 97, 3 km south of Deer Mountain Lodge. 0 Comment
  HSC82556  Lomatium engelmannii Thomas W. Nelson, Jane P. Nelson 1979-5-26 4712 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  UC585160  Lomatium engelmannii E. B. Babcock, G. L. Stebbins Jr. 1936-6-13 2015 Siskiyou ca. 1 1/2 mi. w. Mt. Shasta City (e. and n.e. slope of spur of Rainbow Ridge above Sulloway Creek); Rainbow Ridge 1180 Comment
  CAS-BOT-BC211136  Lomatium engelmannii A. A. Heller 1922-7-3 13676 Siskiyou West of Wagon Creek 2286 Comment
  UC923160  Lomatium macrocarpum Freed W. Hoffman 1950-7-13 3287 Siskiyou Baldy Mountain Lookout North Coast Ranges, western Siskiyou Co. Comment
  HSC34149  Lomatium macrocarpum J. O. Sawyer 1969-7-1 985 Siskiyou Above Paynes Lake Creek 1951 Comment
  HSC96814  Lomatium macrocarpum S. Lyon, J. McIntire 2006-6-25 30 Siskiyou 200 ft. W of intersection of FS 39N14 and 39N04 1616 Comment
  UC923121  Lomatium macrocarpum Freed W. Hoffman 1950-7-11 3278 Siskiyou near Cedar Camp; w. Siskiyou Co. 1219 Comment
  SEINET7073535  Lomatium nevadense A. G. Vestal 1963-6-1 s.n. Siskiyou North base of a volcanic hill. About 1.7 miles east of Montague on Ball Mountain - Little Shasta Road. UTM Zone 10, 542742mN, 4619386mN. Coordinate datum: NAD27. Comment
  RSA452597  Lomatium triternatum L. C. Wheeler 1935-6-9 3555 Siskiyou Siskiyou Mounatins, Yreka Creek 1220 Comment
  SEINET11131417  Lomatium triternatum var. triternatum G. D. Butler 1910-5-21 1380 Siskiyou Klamath Hills Comment
  JEPS17562  Lomatium utriculatum M. K. Curran July, 1887 Siskiyou Edgewood Comment
  HSC4902  Lonicera conjugialis J. O. Sawyer 1968-7-22 527 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  LA205970  Lonicera conjugialis Charles Darland; 1940-6-6 sn Siskiyou Castle Lake Comment
  RSA184705  Lonicera conjugialis Gilbert Muth 1966-7-8 378 Siskiyou Marble Valley. Marble Mtns. 1793 Comment
  RSA238540  Lonicera conjugialis Frederick W. Oettinger 1967-7-26 206 Siskiyou Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2000 Comment
  CAS-BOT-BC240640  Lonicera hispidula D. H. Norris 1970-5-23 12244 Siskiyou Along Klamath River at Ishi Pishi Bridge near Somes Bar Comment
  CHSC51216  Lonicera hispidula L. P. Janeway 1984-6-21 854 Siskiyou At Ferry Point, W side of Klamath River. 289 Comment
  CAS-BOT-BC240840  Lonicera interrupta L. R. Short 1933-6-16 44 Siskiyou Klamath National Forest. S. side of Klamath R. 609 Comment
  CAS-BOT-BC240842  Lonicera interrupta L. E. Detling 1950-6-10 6618 Siskiyou Shasta R. Canyon, nr. Dry Gulch 777 Comment
  RSA610629  Lonicera interrupta L. C. Wheeler 1934-6-26 2784 Siskiyou Klamath River at Camp Lower; Siskiyou Mts. Mt. Diablo Mer. 762 Comment
  CAS-BOT-BC243921  Lonicera involucrata var. involucrata H. E. Brown 1897-7-15 473 Siskiyou South side of Mt. Shasta 3048 Comment
  JEPS107490  Lotus humistratus Lowell Ahart, John Dittes 2005-6-10 12115 Siskiyou Rocky hillside, north of the rock fence, about 100 yards southeast of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  RSA406231  Lotus oblongifolius var. nevadensis Bonnie C. Templeton 1957-6-21 7749 Siskiyou Near the summit of Mt. Scott. Comment
  UC454686  Lotus oblongifolius var. oblongifolius I. J. Condit 1909-8-23 Siskiyou near Sisson; Castle Lake 1828 Comment
  JEPS93915  Lotus purshianus var. purshianus Vernon H. Oswald and Lowell Ahart 1998-8-3 9415 Siskiyou Kangaroo Lake Road (USFS 41N08) 3.9 mi se of Gazelle-Callahan Road at its intersection with USFS 41N10 USFS 41N10; Kangaroo Lake Road 1554 Comment
  HSC150  Lotus unifoliolatus var. unifoliolatus William J. Ferlatte 1966-8-3 259 Siskiyou Mtn. Meadow Ranch 1524 Comment
  CAS-BOT-BC140246  Luetkea pectinata K. T. Stillman 1976-7-30 310 Siskiyou Trail from Big Rock Camp to Jump off, Marble Mountain Wilderness Area 1981 Comment
  JEPS84261  Luetkea pectinata L. R. Heckard with S. D'Alcamo, J. Hickman, W. Roderick 1986-7-16 6429 Siskiyou ca 5 mi n Seiad Valley (town) (cirque at head of Hell's Canyon, e slope of Kangaroo Mountain); Kangaroo Mountain 1828 Comment
  UC1190149  Luetkea pectinata Ira L. Wiggins 1955-7-29 13571 Siskiyou pass at sw end Caribou Lake; Salmon-Trinity Alps Primitive Area 2072 Comment
  CAS-BOT-BC342561  Luina hypoleuca D. H. Norris 1970-5-23 12243 Siskiyou Along Klamath River at Ishi Pishi Bridge near Somes Bar Comment
  CAS-BOT-BC342566  Luina hypoleuca Doris K. Kildale 1928-8-19 6526 Siskiyou Trail between English Lake & Hancock Lake on way to Marble Mt. 2133 Comment
  RSA119498  Lupinus C. P. Smith 1947-5-13 47270 Siskiyou 9.2 miles east of Weed. Highway 97. Comment
  HSC89805  Lupinus albicaulis D. K. Imper 1987-7-21 Siskiyou 8 mi. E of Somes Bar, vicinity of Haypress Meadows 1372 Comment
  JEPS116628  Lupinus albicaulis J. K. Nelson with Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -12 Siskiyou North side of Mt. Shasta south of Hwy 97; Hotlum Fire area burned in Feb 2006 1100 Comment
  CHSC82791  Lupinus albicaulis var. shastensis L. P. Janeway 2002-7-12 7627 Siskiyou High Cascade Range. 2.7 km west of the summit of Ash Creek Butte; along west side of Road 19 (Military Pass Road) about 1.6 km south of the National Forest boundary. 1780 Comment
  UC563063  Lupinus albicaulis var. shastensis Elmer I. Applegate 1923-9-7 3953 Siskiyou Doggett Ridge Doggett Ridge, Siskiyou Mountains (s slope of the Siskiyou Mountains); , Doggett Ridge Comment
  RSA11951  Lupinus albicaulis var. shastensis Elmer I. Applegate 1923-9-7 3853 Siskiyou Doggett Ridge, south slope of the Siskiyou Mountains. Comment
  SEINET8040841  Lupinus albicaulis var. shastensis G. D. Butler 1910-6-6 1465 Siskiyou Quartz Valley Comment
  UC15787  Lupinus albifrons T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  CAS-BOT-BC195956  Lupinus albifrons var. albifrons Geo. D. Butler 1910-5-16 1353 Siskiyou Yreka Comment
  UC796507  Lupinus albifrons var. collinus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11725 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road 1066 Comment
  RSA263032  Lupinus albifrons var. flumineus David B. Dunn, B. J. Cox 1971-6-9 17937 Siskiyou 9 mi. N of Weed, on U.S. Hwy 97, at Whitney Creek. Comment
  SBBG109206  Lupinus andersonii C. B. Hardham 1961-7-3 8067 Siskiyou Scott Mtn, S of Calahan Comment
  UC711890  Lupinus angustiflorus Roxana S. Ferris and Laura Lorraine 1941-8-11 10503 Siskiyou above Medicine Lake (Shasta National Forest); , above Medicine Lake Comment
  SJSU6501  Lupinus argenteus R. W. Trivelpiece 1972-6-18 128 Siskiyou 3 mi W of Klamath R c. 11 mi SW of Happy Camp 853 Comment
  UC909320  Lupinus aridus Dorothy Parker 1948-7-14 Siskiyou 2 mi from Etna ( Scott Valley) 670 Comment
  CAS-BOT-BC215181  Lupinus croceus Arthur Menzies 1962-7-21 s.n. Siskiyou Mount Eddy 2529 Comment
  CAS-BOT-BC215186  Lupinus croceus Alice Eastwood 1921-7-24 10714 Siskiyou Castle Lake Comment
  NY15837  Lupinus croceus H. E. Brown 1897-6-11 392 Siskiyou North side of Mt. Shasta 1524.0 Comment
  UCSB24793  Lupinus croceus Keefe, Joseph 1967-7-11 Siskiyou 0.5 mile north of Castle Lake; 10 miles southwest of town of Mt. Shasta 1676 Comment
  SEINET10937102  Lupinus klamathensis Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-1 Conrad 6968 Siskiyou E facing slope of road cut at the n edge of hornbrook. 732 Comment
  SEINET10485430  Lupinus klamathensis Charles Piper Smith 1947-5-13 Smith 47275 Siskiyou 6.9 mi. E of weed. Hwy 97. Comment
  HSC41642  Lupinus lapidicola Jennifer Whipple 1976-6-12 975 Siskiyou SE slope of Mt. Eddy draining into the N Fork of the Sacramento River 2195 Comment
  RSA78687  Lupinus lapidicola P. A. Munz 1952-7-2 17877 Siskiyou Baldy Mt. Road, NW of Happy Camp, Siskiyou Mts. 1493 Comment
  UC865529  Lupinus latifolius var. viridifolius L. E. Smith 1913-7-4 Siskiyou Castle Crags Comment
  UC157002  Lupinus leucophyllus Geo. D. Butler 1908-7-16 365 Siskiyou Klamath River Comment
  UC83100  Lupinus luteolus Katharine Brandegee July 1887 Siskiyou Hornbrook Comment
  SEINET10488762  Lupinus luteolus Edwin B. Copel 1903-7-2 Copeland 3535 Siskiyou Klamathon. Comment
  CHSC26297  Lupinus obtusilobus J. P. Kroessig 1977-8-5 57 Siskiyou Panther Meadow on Mt. Shasta, n end of Everitt Memorial Hwy, ca. 6 km s of Mt. Shasta Peak. 2285 Comment
  RSA183652  Lupinus polyphyllus subsp. superbus Gilbert Muth 1965-8-6 188 Siskiyou Marble Mountains; backside of Black Mountain Comment
  SEINET10490188  Lupinus polyphyllus var. grandifolius Katherine L. Morris 1973-6-2 Morris 371 Siskiyou Found in the ditch along roadside of hwy. 3 In scot river valley. Comment
  RSA119373  Lupinus sellulus subsp. sellulus S. S. Tillett 1956-7-9 669 Siskiyou Along ridge running n. from nw. side of Scott Mtn., between Big Carmen Creek and Mule Creek. 1951 Comment
  HSC74871  Lupinus sellulus var. artulus J. P. Smith, Jennifer Whipple 1978-7-2 9971 Siskiyou Trail from Cook and Green Pass to Copper Butte. 1768 Comment
  RSA50195  Lupinus sellulus var. artulus E. K. Balls 1949-7-8 13909 Siskiyou Trail from Scott Mountain Camp to Carmen Lake, Scott Mt. 1753 Comment
  RSA607422  Luzula campestris L. C. Wheeler 1934-8-14 3129 Siskiyou North side White Mountain; Siskiyou Mountains. Mt. Diablo Mer. 1767 Comment
  CAS-BOT-BC436708  Luzula comosa var. laxa Elmer I. Applegate 1895-5-28 753 a Siskiyou Sisson, Strawberry Valley Comment
  HSC68526  Luzula parviflora Maralyn A. Renner 1980-6-24 1021 Siskiyou Tributary stream E Fork Seiad Creek where crossed by FS Rd. 48N20 1021 Comment
  JEPS84031  Luzula parviflora L. R. Heckard with S. D'Alcamo, J. Hickman 1986-7-16 6414 Siskiyou ca 5 mi n of the town Seiad Valley (e slope Kangaroo Mountain, cirque at head of Hell's Canyon); e slope Kangaroo Mountain, cirque at head Hell's Canyon 1828 Comment
  RSA238897  Luzula parviflora Frederick W. Oettinger 1968-9-9 800 Siskiyou Along stream that runs from Tom s Upper Pond to Tom s Lower Pond. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  SEINET3155225  Lythrum adsurgens G. D. Butler 1910-8-3 1811 Siskiyou Yreka Creek Comment
  RSA13893  Machaeranthera shastensis L. C. Wheeler 1934-8-24 3218 Siskiyou Trapper Creek. 1860 Comment
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Aug 14 2017
  CAS-BOT-BC342668  Madia citriodora John Thomas Howell 1934-7-4 12410 Siskiyou Lava flow between Timbered Crater and Little Hot Springs Valley Comment
  POM30807  Madia citriodora Geo D. Butler 1910-5-19 1364 Siskiyou Yreka. Comment
  UC73949  Madia elegans T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  HSC26763  Madia elegans J. P. Smith, J. O. Sawyer 1971-9-18 4850 Siskiyou 3.9 mi. from the junction of S.R. 3 and Rd. 8 near Callahan 1189 Comment
  CAS-BOT-BC343430  Madia gracilis Alice Eastwood 1912-7-17 1148 Siskiyou Sisson Comment
  RSA28129  Madia minima Elmer I. Applegate 1936-5-18 10319 Siskiyou Bear Paw Cave, Lava Beds National Monument Comment
  RSA237332  Madia minima Frederick W. Oettinger 1967-6-24 116 Siskiyou Ridge near Etna Summit on road between Etna and Sawyer's Bar. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  POM266582  Mahonia aquifolium Lester Rowntree 1932-8-2 s.n. Siskiyou Happy Camp Rd. Comment
  POM97711  Mahonia nervosa Geo. D. Butler 1910-5-5 1287 .5 Siskiyou Humbug Mountain. Comment
  HSC77489  Maianthemum stellatum L. P. Janeway 1983-7-17 423 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  UCSB24986  Maianthemum stellatum Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  HSC176  Malva neglecta William J. Ferlatte 1966-8-3 261 Siskiyou Mtn. Meadow Ranch 1524 Comment
  JEPS107390  Marrubium vulgare Lowell Ahart, John Dittes 2005-6-10 12106 Siskiyou Rocky high bank, on the east side of the Shasta River, about 20 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  CHSC88106  Matricaria discoidea Jenny Marr 1993-7-1 116 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  RSA60503  Medicago lupulina John H. Thomas 1949-6-16 942 A Siskiyou Beaver Creek Public Camp, 5 miles north of junction of Beaver Creek and Klamath River. Klamath National Forest. Comment
  HSC1870  Medicago lupulina L. C. Wheeler 1934-10-7 3313 Siskiyou Oak Knoll Ranger Station, Klamath River 671 Comment
  CAS-BOT-BC269229  Melica aristata Alice Eastwood 1912-7-1 1100 a Siskiyou McCloud Comment
  POM259099  Melica bulbosa C. L. Hitchcock, J. S. Martin 1939-7-9 5311 Siskiyou Between King's Castle and Black Mountains, west side of ridge. 1829 Comment
  UC333647  Melica bulbosa unknown 1889-6-28 Siskiyou Edgewood Comment
  UCD86380  Melica bulbosa L. Whitney 1935-7-15 3477 Siskiyou Near Bullseye Lake, 2 miles southeast of Medicine Lake. Comment
  HSC5  Melica fugax William J. Ferlatte 1966-6-23 127 Siskiyou Yellow Rose Mine. 1982 Comment
  CAS-BOT-BC264196  Melica subulata John Thomas Howell 1939-8-3 14953 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC583414  Mentzelia laevicaulis var. laevicaulis Elmer I. Applegate 1923-9-6 3938 Siskiyou 12 mi below mouth of Shasta River; Klamath River Comment
  CAS-BOT-BC428547  Micranthes aprica Gilbert Muth 1966-7-8 367 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CAS-BOT-BC428978  Micranthes ferruginea Ira L. Wiggins 1955-7-27 13548 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC429001  Micranthes fragosa Grace Wood 1919-4-1 s.n. Siskiyou Yreka Comment
  CAS-BOT-BC432853  Micranthes tolmiei Wm. Bridge Cooke 1938-8-22 11556 Siskiyou Mount Shasta. West slope of Shastina. Comment
  UC166151  Micropus californicus var. californicus Geo. D. Butler 1910-5-7 1297 Siskiyou Yreka Comment
  CAS-BOT-BC322660  Microseris laciniata W. R. Dudley 1899-8-13 s.n. Siskiyou Nabar near McCloud Comment
  CAS-BOT-BC322662  Microseris laciniata K. L. Chambers 1969-5-26 2933 Siskiyou Salmon River, between Somes Bar and Forks of the Salmon, 1.3 miles east of Lewis Creek Comment
  UC1048144  Microseris laciniata subsp. laciniata Univ. of Calif., Division of Genetics 600 Siskiyou Comment
  CAS-BOT-BC349366  Microseris nutans J. H. Thomas 1954-5-13 4149 Siskiyou Southwestern Siskiyou County. Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, between Lat. 41 deg. 03' and 41 deg. 06' N., and Long. 122 deg. 58' and 123 deg. 03' W. Along Rush Creek 1127 Comment
  CAS-BOT-BC349373  Microseris nutans L. E. Smith 1913-5-12 203 Siskiyou Castle Creek Comment
  HSC36956  Microsteris gracilis J. P. Smith 1974-5-26 7567 Siskiyou Along FS Rd. 47N03 1524 Comment
  POM65022  Microsteris gracilis subsp. gracilis Geo D. Butler 1910-3-28 1148 Siskiyou Yreka. Comment
  POM208258  Microsteris gracilis subsp. humilis L. C. Wheeler 1934-6-1 2602 Siskiyou Siskiyou Mountains; Mt. Diablo Mer. Head Jaynes Canyon. 1829 Comment
  JEPS25060  Mimulus alsinoides Joseph P. Tracy 1939-4-29 16272 Siskiyou Somes Bar 182 Comment
  RSA408132  Mimulus breweri Louis C. Wheeler 1935-7-26 3698 Siskiyou Siskiyou Mountains: Jaynes Canyon. 1951 Comment
  RSA237538  Mimulus breweri Frederick W. Oettinger 1969-8-13 1360 Siskiyou main camp site, English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UC905631  Mimulus cardinalis William M. Hiesey 1947-8-23 555 Siskiyou 1 mi w Beaver Creek (along Highway 96, 2 mi n of Walker); Klamath River Comment
  JEPS93896  Mimulus evanescens Vernon H. Oswald and Lowell Ahart 1998-7-21 9359 Siskiyou ne of Weed, e of Grass Lake, and w of Bray on Old State Highway 0.8 mi e of Tennant Road; Old State Highway 1417 Comment
  RSA60479  Mimulus guttatus John H. Thomas 1949-6-16 947 Siskiyou 0.25 mile north of Beaver Creek Public Camp; 5 miles north of junction of Beaver Creek and Klamath River; Klamath National Forest. Comment
  UC725981  Mimulus guttatus A. A. Heller 1919-6-30 13284 Siskiyou near Durney's Mill Comment
  RSA237548  Mimulus guttatus Frederick W. Oettinger 1969-8-22 1496 Siskiyou North side of Horse's Hole near Horse Range Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  RSA237552  Mimulus guttatus Frederick W. Oettinger 1966-8-7 46 Siskiyou Stream from spring at Tom Taylor Cabin. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2043 Comment
  HSC22289  Mimulus lewisii J. O. Sawyer 1968-7-10 502 Siskiyou Above Sugar Lake 2012 Comment
  POM43851  Mimulus lewisii Geo. D. Butler 1910-7-13 1775 Siskiyou Wooly Creek. 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
  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
  SEINET3159698  Mimulus primuloides G. D. Butler 1910-7-13 1770 Siskiyou Shackleford Creek. 1219 Comment
  UC618708  Mimulus primuloides W. Bridge Cooke 1938-7-1 11124 Siskiyou above Bear Spring (also at Panther and Squaw Creek Meadows); Mount Shasta Comment
  RSA145156  Mimulus primuloides Dorothy Parker 1959-6-28 728 Siskiyou Near summit of Scott Mt. 1631 Comment
  RSA233712  Mimulus primuloides Frederick W. Oettinger 1969-7-25 s.n. Siskiyou Scott Mts., Shasta-Trinity National Forest: ca. 15 air mi. SW of Weed near Kangaroo Lake Campground. Comment
  RSA68951  Mimulus primuloides var. linearifolius A. E. Culbertson 1943-8-30 7 Siskiyou Castle Lake, 5434', in a north facing cirque with an abrupt 1000' backwall; 14 miles s.w. of Mt. Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 airmiles of its headwaters to the west. Comment
  RSA237541  Mimulus primuloides var. pilosellus Frederick W. Oettinger 1969-7-29 1099 Siskiyou Uncle's Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness. 1982 Comment
  JEPS4671  Mimulus pulsiferae Willis L. Jepson July, 1894 55 m Siskiyou Sisson Region of the Upper Sacramento Comment
  UC144462  Minuartia douglasii A. A. Heller 1905-6-20 8084 Siskiyou between Igerna and Weed Comment
  RSA423559  Minuartia douglasii N. G. Sugihara 1977-5-28 74 Siskiyou Hillside 3 miles up road toward Sawyers Bar from hgwy 96 south of Somes Bar 1128 Comment
  HSC92009  Minuartia stolonifera Thomas W. Nelson, Jane P. Nelson 1979-5-26 4723 Siskiyou Along SR 3 3 mi. N of Scott Mtn. Pass at jct. wiith 40N03 Comment
  POM229186  Mirabilis greenei Louis C. Wheeler 1935-7-17 3667 Siskiyou Scott Valley, near Fort Jones, Mouth Indian Creek 854 Comment
  CDA36063  Mirabilis greenei CDFA Staff 1985-5-8 Siskiyou Copco Lake Road. 0 Comment
  RSA276572  Mirabilis greenei George Pilz 1973-5-25 995 Siskiyou 4 miles N of Yreka, above the Shasta River. 700 Comment
  UC1483460  Mitella caulescens Maralyn A. Renner 1980-7-14 1721 Siskiyou headwaters of Etna Creek Klamath National Forest, Etna Quad. (near road at switchback) 1706 Comment
  HSC4888  Mitella pentandra J. O. Sawyer 1968-6-18 180 Siskiyou Above S Russian Creek on W side. 1463 Comment
  UC1409260  Mitella pentandra Frederick W. Oettinger 1968-8-8 376 Siskiyou Base Camp Meadow Salmon Mountains, Marble Mountain Wilderness Area (edge, between Diamond Lake and Hancock Lake, w Siskiyou Co.) 2011 Comment
  CAS-BOT-BC433079  Mitella trifida Ella Dales Cantelow 1936-5-20 1415 Siskiyou Cow Creek. Turned here on Salmon Mt. Comment
  HSC68447  Moehringia macrophylla Maralyn A. Renner 1980-6-26 1215 Siskiyou SE edge of Flint Valley. 1390 Comment
  HSC43060  Mollugo verticillata Ken Stillman 1976-8-24 429 Siskiyou Along Klamath River at Williams Point. 366 Comment
  SEINET6645733  Mollugo verticillata L. C. Wheeler 1935-7-20 3676 Siskiyou Scott River, 1 1/2 mi. W. of Ft. Jones 823 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
  SBBG25901  Monardella odoratissima D. Myrick 1966-8-10 1533 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  SEINET3996774 Image available Monardella odoratissima Marion Ownbey, Fred G. Meyer 1940-7-5 2182 Siskiyou East side of Mt. Shasta Comment
  UC2035811  Monardella odoratissima subsp. glauca Carl B. Wolf 1934-7-4 5944 Siskiyou Klamath River, Horse Creek - Dry Lake Lookout, Siskiyou Mts., 13 1/2 mi from Horse Creek Bridge. 1524 Comment
  HSC69378  Monardella odoratissima subsp. pallida J. O. Sawyer, J. Cole 1980-7-19 3683 Siskiyou Near FS Rd. 45N05, center of section 1890 Comment
  CAS-BOT-BC220225  Monardella sheltonii Louis C. Wheeler 1934-6-9 2664 Siskiyou Klamath National Forest. Klamath R. near Dutch Cr. 670 Comment
  JEPS73668  Monardella siskiyouensis W. L. Jepson 1940-6-22 19974 Siskiyou near Hornbrook; Klamath River 670 Comment
  RSA0034441  Monardella villosa subsp. subserrata E. B. Copeland 1903-7-6 3497 Siskiyou Hornbrook. Comment
  HSC33978  Montia chamissoi J. P. Smith 1974-5-25 7469 Siskiyou Along Rd. 8, 4.7 mi. W of its junction with Hwy. 3 1159 Comment
  RSA760929  Montia dichotoma R. F. Thorne, Frederick W. Oettinger 1969-8-4 63381 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 1768 Comment
  RSA601896  Montia linearis L. C. Wheeler 1935-4-18 3431 Siskiyou Greenhorn Creek, Siskiyou Mountains. 944 Comment
  UC454265  Montia parvifolia I. J. Condit 1911-7-13 Siskiyou Shasta Retreat, Cal. Comment
  CAS-BOT-BC267050  Muhlenbergia filiformis H. E. Brown 1897-6-11 425 Siskiyou N side, Mount Shasta 2743 Comment
  CAS-BOT-BC267052  Muhlenbergia filiformis W. R. Dudley 1899-8-15 s.n. Siskiyou Near Bartletts Comment
  CHSC61581  Muhlenbergia filiformis L. P. Janeway 1983-9-11 663 Siskiyou Siskiyou Mountains; at Poker Flat, a meadow. Along the dirt road. 1524 Comment
  UCD86576  Muhlenbergia filiformis A. A. Heller Date Unknown 11704 Siskiyou 6 miles north of Sisson. Near Deetz station. Comment
  HSC27352  Nama lobbii D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-23 19536 Siskiyou Snowman's Hill Summit 3 mi. W of McCloud on Hwy. 89 Comment
  HSC91988  Narthecium californicum Jennifer Whipple 1976-7-24 1564 Siskiyou SW of Dobkins Lake along the drainage into the lake 2226 Comment
  CDA33237  Narthecium californicum Gordon Leppig, Jennifer Kalt 1996-7-9 366 Siskiyou Northern California Peatlands; Klamath National Forest; Russian Wilderness, Little Duck Lake Fen; cirque west of Little Duck Lake. Comment
  RSA238005  Navarretia capillaris Frederick W. Oettinger, R. F. Thorne 1969-8-8 1306 Siskiyou Near English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  UCD48378  Navarretia divaricata Robert F. Preston 2002-6-20 1831 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope. 1911 Comment
  UC1094396  Navarretia intertexta Rimo C. Bacigalupi with Galen Smith 1957-6-26 5934 Siskiyou ca 2 mi n Weed (along Highway 99) 1036 Comment
  JEPS19786  Navarretia leucocephala subsp. minima Rimo Bacigalupi with S. Galen Smith 1957-6-26 5935 Siskiyou about 2.5 mi nw Weed (close to U.S. Highway 99) 1005 Comment
  JEPS1865  Nemophila heterophylla George D. Butler 1909-3-9 658 a Siskiyou Yreka Comment
  CAS-BOT-BC230556  Nemophila parviflora var. austiniae A. A. Heller 1919-6-20 13257 Siskiyou Metcalf's Ranch, NE base of Mount Eddy 1158 Comment
  HSC39738  Nemophila pedunculata J. O. Sawyer 1970-4-3 2097 Siskiyou Along Sugar Creek 915 Comment
  UC1114141  Nemophila pedunculata Gene B. Newcomb and H. G. Baker Mar 28 1959-Mar 29 1959 230 Siskiyou on the road to Callahan 11.9 mi w Gazelle; w of Gazelle 1219 Comment
  JEPS109401  Nepeta cataria Dean W. Taylor 2004-7-19 19183 Siskiyou Weed, wet meadow just east of town limits along Boles Creek 1051 Comment
  JEPS107919  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-BC60581  Noccaea fendleri subsp. glauca Geo. D. Butler 1910-6-4 1503 Siskiyou Shackleford Creek. Comment
  HSC60774  Noccaea fendleri subsp. glauca Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  HSC75095  Noccaea fendleri subsp. glauca J. P. Smith, Thomas W. Nelson 1979-6-15 10119 Siskiyou Klamath National Forest, road to Carmen Lake, 0.6 mi. from its junction with Hwy. 3 1646 Comment
  RSA237495  Nothocalais alpestris Frederick W. Oettinger 1969-9-3 1619 Siskiyou Trail on north side of Crapo Ridge above Tom's Cabin; Salmon Mountains, the high lake basins in the vicinity of English Peak, Marble Mountain Wilderness Area 2073 Comment
  HSC43387  Olsynium douglasii var. douglasii Maralyn O'Meara 1974-5-26 463 Siskiyou Along USFS Rd. 47N03 1524 Comment
  UC4246  Olsynium douglasii var. douglasii F. W. Hooper 1897-3-27 Siskiyou Little Shasta Comment
  CAS-BOT-BC349936  Onopordum acanthium C. S. Giebner 1964-7-3 s.n. Siskiyou Dwinnell Rd., Big Springs, Shasta Valley Comment
  CAS-BOT-BC349958  Onopordum tauricum T. C. Fuller 1959-12-10 3324 Siskiyou Fred Voelker ranch, W edge/Meiss Lake Basin, just S/Sam's Neck, ca. 15 mi SW/Dorris Comment
  CDA7576  Onopordum tauricum T. C. Fuller 1960-6-3 4648 Siskiyou F. Voelker property, west edge of Meiss Lake Basin just south of Sam s Neck, ca. 15 miles southwest of Dorris. 0 Comment
  RSA128657  Onopordum tauricum T. C. Fuller 1959-12-10 3324 Siskiyou Fred Voelker Ranch, west edge of Meiss Lake Basin, just south of Sam's Neck, ca. 15 miles southwest of Dorris Comment
  RSA139036  Onopordum tauricum T. C. Fuller 1960-6-30 4648 Siskiyou F. Voelker property, Wedge Meiss Lake Basin just south Sam's Neck, ca. 15 miles southwest Dorris Comment
  CAS-BOT-BC355595  Oreostemma alpigenum var. andersonii A. A. Heller 1915-8-26 12225 Siskiyou Heather Meadow near the head of Wagon Creek Canon [Canyon], Mt. Eddy 2590 Comment
  JEPS109703  Oreostemma alpigenum var. andersonii Dean W. Taylor 2002-7-20 18264 Siskiyou Forest Road 17 ca. 6 miles west (above) junction with Stewart Springs Road, Parks Creek 1737 Comment
  JEPS123404  Oreostemma alpigenum var. andersonii Julie Kierstead Nelson with Don Lepley, Rhonda Posey 2015-8-13 2015 -123 Siskiyou Headwaters of west fork Parks Creek, 2 miles NE of China Mountain. Comment
  UC1619965  Oreostemma alpigenum var. andersonii Barbara Ertter with Julie Kierstead and Jim Nelson 1990-7-15 9357 Siskiyou ca. 5 airmi. due w. Shasta City (Morgan Meadows on e. side of Mt. Eddy); Mt. Eddy, Morgan Meadows 1676 Comment
  CAS-BOT-BC500187  Orobanche fasciculata W. R. Dudley 1893-6-1 s.n. Siskiyou Castle Crag Trail, near Mt. Shasta 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
  CAS-BOT-BC500328  Orobanche uniflora subsp. occidentalis Gilbert J. Muth 1969-8-11 1364 Siskiyou Ridge S of Boulder Peak 2316 Comment
  CAS-BOT-BC500331  Orobanche uniflora subsp. occidentalis Dorothy Parker 1949-7-10 s.n. Siskiyou Salmon Mountain Comment
  HSC296  Orthilia secunda William J. Ferlatte 1966-8-17 394 Siskiyou Caribou Basin 2134 Comment
  UC1483529  Orthilia secunda John Palmer 1980-8-12 685 Siskiyou Condry Mtn. Southeast of Wards Gap. 1188 Comment
  CAS-BOT-BC458079  Orthilia secunda W. R. Dudley 1901-8-20 s.n. Siskiyou East Fork of Salmon River, above mouth of Trail Creeki Comment
  RSA0083192  Orthilia secunda E. B. Copeland 1903-9-6 3924 Siskiyou Mt. Eddy. 1372 Comment
  RSA0083195  Orthilia secunda Gilbert Muth 1966-7-29 463 Siskiyou Marble Valley, by waterfall, Marble Mountains. 1829 Comment
  CHSC28801  Orthocarpus bracteosus J. D. Jokerst 1978-9-3 159 Siskiyou Five miles east of Weed. Comment
  CAS-BOT-BC266615  Orthocarpus cuspidatus Marion Ownbey; Ruth P. Ownbey 1938-7-19 1755 Siskiyou 2.5 miles NW of Dry Lake Lookout, summit of the Siskiyou Mountains Comment
  UCR244767  Orthocarpus cuspidatus K. M. Meyer, A. Townesmith 2007-8-2 187 Siskiyou Klamath National Forest, 13.3 mi. on Forest Service Rd. 70, off US Hwy 97 toward Oregon 1956 Comment
  HSC86557  Orthocarpus cuspidatus subsp. copelandii D. K. Imper Jul 1987 Siskiyou Marble Mtn. Wilderness Area, Haypress Meadow, 8 mi. E of Somes Bar 1372 Comment
  RSA237568  Orthocarpus cuspidatus subsp. copelandii Frederick W. Oettinger 1967-8-10 245 -b 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
  POM43391  Orthocarpus cuspidatus subsp. cuspidatus Geo. D. Butler 1909-6-22 930 Siskiyou Goosenest Foothills. 1524 Comment
  UC1034070  Orthocarpus imbricatus unknown 1941-8-16 Siskiyou in areas below Wagon Camp Mount Shasta (Mount Shasta); , below Wagon Camp Comment
  SEINET10549696  Orthocarpus lithospermoides Strull 1984-5-26 STRULL 65 Siskiyou T44n, r11w, s26, indian scotty campground, 15.2 mi w of fort jones on scott River rd. Collected on roadside growing with quercus, cornus, and aquilegia. 701 Comment
  UC1034599  Osmorhiza berteroi Douglas Barbe 1955-6-30 58 Siskiyou 0.7 mi nw Forest Glen; Klamath Mountains, Etna 944 Comment
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  HSC27329  Osmorhiza occidentalis J. P. Smith, J. O. Sawyer, M. O'Mera 1972-7-3 5715 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  HSC69011  Osmorhiza occidentalis Maralyn A. Renner 1980-7-24 2032 Siskiyou Lily Pad Lake 1768 Comment
  HSC73996  Osmorhiza purpurea Gail Newton 1980-6-20 510 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC413214  Oxyria digyna Gilbert J. Muth 1969-8-6 1225 Siskiyou Boulder Peak Ridge Comment
  CAS-BOT-BC316761  Packera cana Marion L. Campbell 1916-7-15 s.n. Siskiyou Moraine Lake to Arroyo Creek Comment
  CHSC71285  Packera cana Vernon H. Oswald; Lowell Ahart 1998-6-11 9175 Siskiyou Shasta NF plantation on the west side of Hwy. 97 2.2 mi northeast of Lake Shastina-Big Springs Rd., northeast of Weed. 1066 Comment
  UC1234603  Packera cana Peter H. Raven 1962-5-30 17901 Siskiyou U.S. Highway 97 8.3 mi n Weed Comment
  UC585067  Paeonia brownii E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1883 Siskiyou n slope of mt. about 2 mi s Sheep Rock (on hwy from Bray to Weed); Mt. Shasta 1235 Comment
  RSA155856  Paeonia brownii Peter H. Raven 1962-5-30 17993 Siskiyou US Hwy 97, 8.3 miles north of Weed. Comment
  HSC2390  Parnassia palustris W. J. Ferlatte 1966-8-19 434 Siskiyou Trinity Alps, along Kidd Creek trail. 1829 Comment
  CAS-BOT-BC259743  Paspalum distichum Edward Lee 1934-8-10 1019 Siskiyou S bank of Klamath River between McKinney and Parkhouse creeks. Near Hamburg 609 Comment
  CAS-BOT-BC202834  Paxistima myrsinites John Thomas Howell 1952-6-14 2831 Siskiyou Just north of Black Butte Comment
  CAS-BOT-BC202859  Paxistima myrsinites A. A. Heller 1916-8-24 12563 Siskiyou Near Sisson 1077 Comment
  UCD107435  Paxistima myrsinites Roman Gankin; Brewer, Hildreth, and Milam 1965-8-11 608 Siskiyou Indian Creek Road, 0.9 mile north of junction with Poker Flat Road. 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
  HSC19157  Pedicularis bracteosa var. flavida J. O. Sawyer 1969-8-5 1750 Siskiyou W of Little Duck Lake 2073 Comment
  JEPS10413  Pedicularis bracteosa var. flavida Geo. D. Butler 1908-8-5 42 Siskiyou Summit above Cold Spring 1828 Comment
  JEPS74416  Pedicularis bracteosa var. flavida W. J. Ferlatte 1966-8-17 387 Siskiyou Caribou Basin; Trinity Alps 1981 Comment
  HSC62292  Pedicularis racemosa Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  HSC699  Pedicularis racemosa William J. Ferlatte 1967-8-23 1101 Siskiyou Head of Kidd Creek 1982 Comment
  UCR131622  Pedicularis racemosa L. C. Wheeler 1934-6-7 2659 Siskiyou Siskiyou Mountains, North Hungry Creek 1311 Comment
  POM126840  Pedicularis semibarbata Milo S. Baker 1898-8-9 482 Siskiyou Medicine Lake. Comment
  CHSC62  Pellaea brachyptera V. Holt 1932-7-19 Siskiyou Spring Hill. 1219 Comment
  UC705509  Pellaea brachyptera Marion Ownbey and Fred G. Meyer 1940-7-6 2198 Siskiyou near summit Cayenne Ridge (s side Marble Mt); Marble Mt Comment
  HSC26148  Pellaea breweri J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5689 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  JEPS84173  Pellaea breweri L. R. Heckard with S. D'Alcamo, J. Hickman, and S. Winchester 1986-7-16 6403 Siskiyou ca. 5 mi n of town of Seiad Valley (cirque at head of Hell's Canyon) 1750 Comment
  JEPS7207  Penstemon anguineus Geo. D. Butler 428 Siskiyou on trail beyond Whiskey Camp; Independence Creek, beyond Whiskey Camp Comment
  JEPS84305  Penstemon anguineus L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6364 Siskiyou ca 1/2 mi e Red Butte summit (ca 7 mi nne of Seiad Valley, w of Cook and Green Pass); w of Cook and Green Pass, e of Red Butte summit 579 Comment
  NY590189  Penstemon davidsonii var. davidsonii R. F. Thorne 1969-8-10 39005 Siskiyou Mount Shasta National Forest: south slope of Mount Shasta 2377.4 Comment
  HSC20982  Penstemon deustus D. M. Thomson 1965-6-19 91 Siskiyou Lava Beds National Monument, Captain Jacks Stronghold Comment
  POM237613  Penstemon deustus subsp. deustus C. Leo Hitchcock, J. S. Martin 1939-7-7 5293 Siskiyou North side of Sanger Peak. 1646 Comment
  CHSC110954  Penstemon deustus var. pedicellatus B. Castro; L. P. Janeway 2007-7-29 1669 Siskiyou Modoc Plateau. South of Callahan Flow but N of Medicine Lake Glass Flow, along 49 Rd (USFS Road 44N75) in vicinity of Fourmile Hill. Exact location not determined. 1981 Comment
  UC796493  Penstemon deustus var. pedicellatus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11728 Siskiyou French Creek Logging Road w Callahan; w of Callahan 1066 Comment
  HSC69264  Penstemon gracilentus J. O. Sawyer, J. Cole 1980-7-20 3737 Siskiyou 2 mi. N of Little Glass Mtn., on road connecting FS Rd. 45N05 with FS Rd. 47N75 1875 Comment
  JEPS45938  Penstemon gracilentus Rimo Bacigalupi and L. R. Heckard 1966-6-20 9183 Siskiyou along upper part Bolam Logging Road (n side of Mt. Shasta); , along Bolam logging Road 1676 Comment
  UC775053  Penstemon gracilentus Carl B. Wolf 1937-8-8 9083 Siskiyou along John S. Everett Memorial Highway (sw side Mt. Shasta); sw side of Mt. Shasta 2133 Comment
  POM14639  Penstemon gracilentus E. B. Copeland 1903-7-17 3508 Siskiyou Mt. Shasta. Comment
  CHSC9505  Penstemon heterophyllus J. F. Goodwin 1971-7-3 142 Siskiyou South side of road with low shrubbery, 9.5 mi. south of Mt. Shasta Ski Bowl area. 1432 Comment
  HSC97132  Penstemon laetus subsp. sagittatus L. Ahart, John Dittes 2005-6-9 12029 Siskiyou Hill, S of rock fence, 100 yds. NE of where cattle water in Shasta River, 3/5 mi. S of Hwy. 99/97 Cutoff, 2.5 mi. ESE of Grenada 775 Comment
  SEINET11262162  Penstemon laetus subsp. sagittatus Noel H. Holmgren, James L. Reveal 1966-6-9 2678 Siskiyou US 97, Shasta Valley, 4 miles north of Weed.; 0 1158 Comment
  HSC41806  Penstemon laetus subsp. sagittatus Brent Whiteley 1975-6-17 3 Siskiyou Somes Bar area 235 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
  HSC29276  Penstemon newberryi Frederick W. Oettinger 1968-9-1 655 Siskiyou Marble Mtn. Wilderness Area, cliffs E of Abbott's Lake 1799 Comment
  CAS-BOT-BC239333  Penstemon newberryi var. berryi Alice Eastwood No date on label s.n. Siskiyou Mount Shasta Comment
  CAS-BOT-BC239343  Penstemon newberryi var. berryi Wm. Bridge Cooke 1938-6-17 11010 Siskiyou Mount Shasta. Sisson Southern Trail Comment
  NY627424  Penstemon newberryi var. berryi I. L. Wiggins 1955-7-27 13537 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042.2 Comment
  NY627426  Penstemon newberryi var. berryi J. T. Howell 1937-7-26 13516 Siskiyou Caribou Basin, Salmon-Trinity Alps 1981.2 Comment
  UC887197  Penstemon newberryi var. newberryi Alice Eastwood 1912-7-19 1230 Siskiyou Mount Shasta Comment
  UC690225  Penstemon parvulus Isabelle C. Kimber 1934-6-9 31 Siskiyou just above Ney Creek confluence with Sacramento River (Steelbridge Camp); Sacramento River 731 Comment
  HSC91115  Penstemon parvulus Jennifer Whipple 1976-7-2 1255 Siskiyou Near edge of Dobkins Lake 2073 Comment
  UC722754  Penstemon parvulus C. L. Hitchcock, J. S. Martin 1939-7-6 5230 Siskiyou California on Takilma-Happy Camp Road peak above and n of divide of Siskiyou Mts. 1828 Comment
  RSA215651  Penstemon procerus subsp. brachyanthus Gilbert Muth 1969-8-6 1219 Siskiyou Boulder Peak. 2530 Comment
  CHSC1883  Penstemon procerus subsp. formosus V. Holt 1932-6-26 Siskiyou Mt. Eddy. 2133 Comment
  JEPS27132  Penstemon procerus var. formosus Harley P. Chandler June, 1901 1639 Siskiyou near Marble Mountain (North Coast Ranges); , near Marble Mountain 2133 Comment
  NY639268  Penstemon procerus var. formosus A. A. Heller 1920-7-9 13427 Siskiyou Near the summit of Mt. Eddy Comment
  SEINET5329341 Image available Penstemon roezlii G. Butler 1910-6-9 1579 Siskiyou Foothills of the Goosenest Mts. Comment
  UC1045256  Penstemon roezlii W. Bridge Cooke 1940-7-26 15389 Siskiyou along the junction of the Memorial Highway and the Wagon Camp Road; Mount Shasta 1828 Comment
  UC1238910  Penstemon roezlii Freed W. Hoffman 1948-7-6 2437 Siskiyou Scott Mountain road near summit of divide; North Coast Ranges, Scott Mountain rd nr summit divide Comment
  CHSC1886  Penstemon rupicola V. Holt 1932-7-5 Siskiyou Castle Lake. 1981 Comment
  CAS-BOT-BC27142  Penstemon speciosus Amos Arthur Heller 1905-6-8 7991 Siskiyou Yreka Comment
  UC726669  Penstemon speciosus A. A. Heller 1916-6-23 12424 Siskiyou near Black Butte (n of Sisson); near Black Butte 1127 Comment
  UC796494  Penstemon speciosus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11729 Siskiyou French Creek Logging Road w Callahan; French Creek Logging Road w of Callahan 1066 Comment
  UC887110  Penstemon speciosus A. A. Heller 1938-7-12 15249 Siskiyou along U.S. Highway #97, 5 mi n Weed; n of Weed Comment
  UC887342  Penstemon speciosus A. A. Heller 1916-6-23 12424 Siskiyou near Black Butte (n of Sisson); near Black Butte 1127 Comment
  UC727350  Penstemon speciosus Elmer I. Applegate 1931-6-24 6805 Siskiyou between Bear Paw Cave, Modoc Lava Beds and Medicine Lake; btw Bear Paw Cave, Modoc Lava Beds and Medicine Lake Comment
  UC1090395  Perideridia bolanderi subsp. bolanderi Milo S. Baker 1957-6-16 13158 Siskiyou trip to Scott Mt. aftern turn-off near Callahan; North Coast Ranges Comment
  HSC69081  Perideridia howellii Maralyn A. Renner 1980-8-4 2220 Siskiyou Flint Valley 1390 Comment
  HSC404  Perideridia parishii subsp. latifolia William J. Ferlatte 1966-8-16 371 Siskiyou Big Flat, between campground and S Fork of the Salmon River. 1524 Comment
  CAS-BOT-BC419258  Persicaria maculosa Louis C. Wheeler 1934-9-20 3286 Siskiyou Lumgrey Creek, Siskiyou Mts. 670 Comment
  CDA41161  Petunia parviflora J. O. McKinney 1944-1 s.n. Siskiyou Yreka. 0 Comment
  UC1442843  Phacelia cookei W. B. and V. G. Cooke 1965-7-12 35182 Siskiyou Bolam Rd Mt. Shasta Comment
  UC164114  Phacelia corymbosa Geo. D. Butler 1910-5-4 1280 Siskiyou dry hill near Yreka Comment
  CHSC96030  Phacelia dalesiana L. P. Janeway 2006-7-4 8791 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. 1838 Comment
  CDA12115  Phacelia hastata G. F. Hrusa 1990-4-2 7839 Siskiyou Siskiyou Mountains; Old Shasta River Rd. (Hwy 263) approx. 3 m. S of intersection w/Hwy 96, and 10 miles N of Yreka. Comment
  UC1084699  Phacelia heterophylla subsp. virgata Milo S. Baker 1957-6-15 13117 Siskiyou road cut just s Weed; North Coast Ranges Comment
  UC535111  Phacelia heterophylla subsp. virgata Mrs. H. P. Bracelin 1931-6-20 430 Siskiyou about 2 mi nw Mt. Shasta City 1051 Comment
  POM73592  Phacelia heterophylla subsp. virgata Geo. D. Butler 1910-5-7 1300 Siskiyou Near Yreka. Comment
  RSA582233  Phacelia heterophylla var. virgata Louis C. Wheeler 1935-6-9 3567 .5 Siskiyou Yreka Creek. Siskiyou Mtns. (Mt Diablo Mer.) 1220 Comment
  CDA40406  Phacelia linearis R. Richards & D. Janssen 1978-5-25 s.n. Siskiyou Northeast of Weed at Yellow Butte. 0 Comment
  UCSC003070  Phacelia magellanica f. jepsonii Peter Kamb 1948-6-26 1135 Siskiyou Southwest slope of Mt. Shasta above Horse Camp above Horse Camp - Mt. Shasta 671 Comment
  HSC24686  Phacelia mutabilis J. O. Sawyer 1969-7-9 1265 Siskiyou Summit above S Sugar Lake. 2378 Comment
  JEPS32027  Phacelia mutabilis W. B. and V. G. Cooke 1963-7-10 34267 Siskiyou along Bolam Logging Rd Mt. Shasta (n side of mt.) Comment
  HSC29259  Phacelia mutabilis Frederick W. Oettinger 1968-8-11 482 Siskiyou Salmon Mtns., just below Tom Taylor Cabin Spring 2043 Comment
  UC1400325  Phacelia pringlei F. W. Oettinger 1969-7-25 Siskiyou near Kangaroo Lake Campground (ca 15 air mi sw of Weed); Shasta-Trinity National Forest, Scott Mts. Comment
  POM299318  Phacelia pringlei J. T. Howell 1937-7-29 13612 Siskiyou Scott Mountain between Trinity and Siskiyou counties. Comment
  HSC75498  Phacelia procera K. T. Stillman 1976-8-7 216 Siskiyou Marble Mtn. Wilderness Area, Elk Valley 1829 Comment
  CAS-BOT-BC141449  Phacelia ramosissima var. eremophila Elmer I. Applegate 1935-6-5 9300 Siskiyou Capt. Jack's Stronghold, Lava Beds National Monument Comment
  JEPS93894  Phalaris arundinacea Vernon H. Oswald and Lowell Ahart 1998-7-21 9327 Siskiyou Highway 97 between Weed and Macdoel (at w end of Grass Lake); Grass Lake, Highway 97 1524 Comment
  HSC26599  Philadelphus californicus D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-23 19539 Siskiyou Along Hwy. 96 about 8 mi. E of junction with Hwy. 5 Comment
  CAS-BOT-BC77420  Philadelphus lewisii L. R. Short 1933-6-15 43 Siskiyou Klamath National Forest, Clear Creek 640 Comment
  JEPS49604  Philadelphus lewisii Geo. D. Butler 1908-8-11 87 Siskiyou Shackleford Creek Quartz Valley Comment
  UC1408863  Philadelphus lewisii Frederick W. Oettinger and R. F. Thorne 1969-8-5 1200 Siskiyou on English Lake trail above Willow Spring (high lake basins in vicinity of English Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1676 Comment
  CHSC69102  Phleum alpinum Vernon Oswald; Lowell Ahart 1997-7-28 8788 Siskiyou Southeast of Medicine Lake on road 43N54 at a meadow 0.6 mi southeast of Paynes Springs. 1920 Comment
  HSC96868  Phleum alpinum Gordon Leppig 1998-8-13 999 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen 2200 Comment
  UCD89299  Phleum alpinum Beecher Crampton 1956-8-21 3806 Siskiyou Siskiyou County, 15-16 miles southwest of Mt. Shasta City. Slopes above Gumboot Lake, headwater of the south fork of the Sacramento River. 1920 Comment
  SEINET10657527  Phleum alpinum Louis C. Wheeler 1935-7-26 Wheeler 3713 Siskiyou Siskiyou Mts. Wet sunny meadow Jaynes Canyon, S 12 T, T 47 N, R 10 W. Mt. Diablo Mer. 1951 Comment
  SEINET10954464  Phleum alpinum H. E. Brown 1897-6-11 Brown 445 Siskiyou north side Mt. Shasta 1524 Comment
  UC602589  Phlox unknown 1938-6-24 11064 Siskiyou MacBride Springs Mt. Shasta 1524 Comment
  UC1736666  Phlox adsurgens Dean W. Taylor 1972-7-3 1590 Siskiyou Cook and Green Pass 1371 Comment
  UCD118238  Phlox adsurgens Dean William Taylor 1972-7-3 1590 Siskiyou At Cook and Green Pass. 1371 Comment
  SJSU6499  Phlox adsurgens R. W. Trivelpiece 1972-6-24 130 Siskiyou Thompson Ridge 5 mi E of Indian Cr Fork of Klamath R c. 11 mi N of Happy Camp 1280 Comment
  CHSC4540  Phlox caespitosa J. E. Bowlin 1967-7-18 56 Siskiyou 150 yds. above the parking lot and restaurant at Mount Shasta Ski Bowl. It is 15.5 mi. from the center of the city of Shasta. 2407 Comment
  JEPS113328  Phlox diffusa L. P. Janeway 2006-7-4 8794 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. Comment
  UC30215  Phlox diffusa W. H. Brewer 1862-9-13 1377 Siskiyou Mount Shasta 2438 Comment
  JEPS124890 Image available Phlox diffusa P. L. Billings 1965-7-25 96 Siskiyou About 100' above end of road on Mt. Shasta. Comment
  JEPS71115  Phlox gracilis J. W. Kisling Mar 1910 Siskiyou Edgewood Comment
  CDA40286  Phlox gracilis T. C. Fuller 1970-5-27 19586 Siskiyou Interstate 5, truck inspection station, Dunsmuir Grade, 4 miles north of Dunsmuir. 0 Comment
  UC1934626  Phlox speciosa V. J. Krajina 1953-6-26 Siskiyou between town of Weed and Mt. Shasta Camp. Comment
  HSC45154  Phlox speciosa subsp. nitida J. O. Sawyer, E. Cope 1977-6-19 2952 Siskiyou Clear Creek Trail between Preston Creek and Trout Camp 915 Comment
  HSC82284  Phlox speciosa subsp. occidentalis Thomas W. Nelson, Jane P. Nelson 1979-6-15 4804 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  LA209898  Phoradendron bolleanum Louis C. Wheeler; 1934-6-26 2789 Siskiyou Siskiyou Mountains, Camp Lowe, Klamath River 761 Comment
  HSC44984  Phyllodoce empetriformis J. O. Sawyer 1978-6-21 3289 Siskiyou Marble Mountain Wilderness, trail W of Dollar Meadows 1890 Comment
  HSC189  Physaria occidentalis William J. Ferlatte 1967-6-29 575 Siskiyou Dorleska Summit 2134 Comment
  HSC82286  Physaria occidentalis Thomas W. Nelson, Jane P. Nelson 1979-6-15 4807 Siskiyou Along road to Carmen Lake, 0.6 mi. from junction with State Route. 1646 Comment
  HSC44493  Physaria occidentalis K. Irwin 1977-5-21 377 Siskiyou Hayden, 1 mi. W of Scott Mtn., E of Rd. 40N08 Comment
  HSC64809  Physaria occidentalis J. P. Smith 1976-5-21 8752 Siskiyou Along FS Rd. 40N08, 1 mi. from its junction with Hwy. 3, Klamath National Forest 1646 Comment
  CAS-BOT-BC64870  Physaria occidentalis subsp. occidentalis R. C. Wenk 2005-7-15 219 Siskiyou Above South Fork Salmon River, along Yellow Rose Mine trail. Top of pass going N along ridge towards Preacher's Peak. 2130 Comment
  CAS-BOT-BC140525  Physocarpus Alice Eastwood 1912-7-21 1273 Siskiyou Sisson Comment
  RSA105421  Physocarpus capitatus G. D. Barbe 1955-6-29 45 Siskiyou 1.8 miles E of Callahan, S bank of Scott River 976 Comment
  CAS-BOT-BC78178  Picea breweriana L. E. Berriman 1941-1-1 s.n. Siskiyou North slopes of Russian Peak; west of Callahan 2133 Comment
  JEPS83899  Picea breweriana Stephen K. Langer with Charles S. Rand 1988-6-23 Siskiyou slope e Elk Lake (n of Red Butte) Comment
  NY29986  Picea breweriana J. T. Howell 1937-7-24 13413 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
  RSA264592  Picea breweriana L. E. Berriman 1941-01 s.n. Siskiyou North slopes of Russian Peak, west of Callahan. 1829 Comment
  UCSB24020  Picea breweriana Keefe, Joseph 1967-7-11 Siskiyou Along trail, 0.5 mile east of Cook and Green Pass, north of Seiad Valley 1706 Comment
  CAS-BOT-BC73436  Picea engelmannii Dorothy Parker 1962-6-1 s.n. Siskiyou Siskiyou Mountains - Sugar Creek, Salmon Mountains 1219 Comment
  HSC58929  Pinguicula macroceras Marvin Butler 1971-8-8 68 Siskiyou Near Bell Echo Camp, close to the town of Cave Jct. 1433 Comment
  HSC31987  Pinus albicaulis Steve Selva, Roger Jensen 1974-8-25 54 Siskiyou Top of slopes W of Little Duck Lake Comment
  SBBG45487  Pinus albicaulis W. M. Plumb 1972-7-16 Siskiyou NE slope of Mt Eddy 2438 Comment
  CAS-BOT-BC78403  Pinus balfouriana Richard Mc. P Brown; Robert Craig 1974-7-26 s.n. Siskiyou Klamath National Forest, Trinity Alps, Caribou Lake 2097 Comment
  HSC31504  Pinus balfouriana Steve Selva, Roger Jensen 1974-8-25 50 Siskiyou Top of ridge S of Little Duck Lake Comment
  SFV20775  Pinus balfouriana J. Briggs 2007-2-20 s. n. Siskiyou Salmon Trinity Alps, Preachers Peak. 2160 Comment
  UC1199672  Pinus balfouriana James B. Roof, Irja Knight 1962-10-23 Siskiyou 6 mi s Callahan (between Mill Creek Lake and Washbasin Lake); Klamath Nat. Forest, Callahan District, Scott Mts. 1828 Comment
  HSC103159  Pinus balfouriana subsp. balfouriana Michael Kauffmann 2013-8-7 19 Siskiyou South China Mountain 2395 Comment
  HSC45032  Pinus contorta Maralyn O'Meara 1974-5-25 392 Siskiyou Along road to Duck Lakes trail 1402 Comment
  CAS-BOT-BC78496  Pinus contorta subsp. murrayana W. B. C. 1938-8-24 11585 Siskiyou Along the Round-the-Mountain road 1798 Comment
  NY61579  Pinus jeffreyi C. G. Pringle 1882-9-7 s.n. Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  JEPS46822  Pinus lambertiana W. L. Jepson 1907-7-22 Siskiyou from Scott Bar to Scott Valley (Miamber Trail); Miamber Trail Comment
  CAS-BOT-BC78957  Pinus monticola Doris K. Kildale 1928-8-19 6563 Siskiyou Hancock Lake trail to Marble Mt. 2133 Comment
  RSA237351  Pinus monticola Frederick W. Oettinger 1968-9-9 795 Siskiyou Due East of Toms Upper Pond. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2119 Comment
  UC401400  Pinus monticola Geo. D. Butler 1908-8-5 521 Siskiyou Cold Springs, Woolly Creek, Cold Springs Comment
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Nov 25 2011
  UC1409483  Piperia unalascensis Frederick W. Oettinger 1969-7-27 1077 Siskiyou nw of English Lake; Salmon Mountains, Marble Mountain Wilderness Area, English P 1981 Comment
  RSA382824  Piperia unalascensis Louis C. Wheeler 1934-7-2 2839 Siskiyou Deer Creek. Sterling Mtn. Siskiyou Mtns. 1585 Comment
  POM229184  Plagiobothrys greenei L. C. Wheeler 1938-5-18 3502 Siskiyou Siskiyou Mts.: Mt. Diablo Mer. Yreka Creek 854 Comment
  RSA52134  Plagiobothrys nothofulvus Dorothy Parker 1948-5-3 s.n. Siskiyou Wasteland along Hwy 99, 4 miles S of Yreka. 879 Comment
  SBBG106810  Plagiobothrys nothofulvus K. L. Chambers, C. G. Carlbom 1962-4-21 2104 Siskiyou Hwy 99, 5.6 mi S of the center of Yreka Comment
  UC163847  Plagiobothrys tenellus Geo. D. Butler 1910-4-10 1163 Siskiyou hills near Yreka Comment
  SBBG68796  Plantago A. A. Heller 1927-8-2 14442 Siskiyou near Gazelle, Shasta Valley Comment
  RSA600381  Plantago eriopoda Louis C. Wheeler 1934-10-13 3321 Siskiyou Siskiyou Mountains: Mt. Diablo Mer.; Shasta River, 2 miles below Yreka Creek. 671 Comment
  HSC67923  Plantago major J. P. Smith, Steve Selva 1970-7-27 4515 Siskiyou Gumboot Lake 1768 Comment
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Jun 7 2012
  HSC58909  Platanthera dilatata var. leucostachys Marvin Butler 1971-7-16 143 Siskiyou Near El Capitan Lake, close to the town of Cave Junction 1524 Comment
  UC164417  Platanthera leucostachys Geo. D. Butler 1908-8-4 3 Siskiyou Cold Spring , Cold Spring (Wooley Creek) Comment
  RSA237642  Platanthera sparsiflora Frederick W. Oettinger 1969-7-29 1101 Siskiyou Outlet of Uncles Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA78325  Platanthera sparsiflora Philip A. Munz 1952-7-1 17860 Siskiyou Baldy Mtn road, NW of Happy Camp, Siskiyou Mts. 1220 Comment
  HSC68348  Plectritis ciliosa J. P. Smith 1973-5-5 6400 Siskiyou In and around the O'Neill Campground near Seiad Valley. 488 Comment
  RSA576933  Plectritis samolifolia Louis C. Wheeler 1934-6-4 2632 Siskiyou Hamburg Gulch off Horse Creek. (Mt. Diablo Mer.) Siskiyou Mts. 610 Comment
  RSA240083  Pleuricospora fimbriolata Frederick W. Oettinger 1969-8-23 1514 Siskiyou On hill above Smith Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC618751  Pleuricospora fimbriolata W. Bridge Cooke 1938-8-5 11460 Siskiyou Sisson Southern Trail, Canadian 1828 Comment
  CAS-BOT-BC254781  Poa bolanderi Geo. D. Butler 1910-7-12 1750 Siskiyou Shackleford Creek Comment
  RSA239047  Poa bolanderi Frederick W. Oettinger 1969-8-16 1395 Siskiyou Southwest of Wire Grass meadow above English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  UCD90583  Poa bolanderi A. H. Murphy 1955-7-29 55 S Siskiyou Klamath National Forest. Marble Mountains. Clear Lake. 1798 Comment
  POM215735  Poa bulbosa L. C. Wheeler 1935-6-1 3536 Siskiyou Siskiyou Mountains; Yreka Creek 854 Comment
  UC820697  Poa bulbosa Louis C. Wheeler 1935-6-1 3536 Siskiyou Yreka Creek; Siskiyou Mts 853 Comment
  CAS-BOT-BC255147  Poa cusickii subsp. epilis Alice Eastwood 1921-7-28 10932 Siskiyou Medicine Lake Comment
  CAS-BOT-BC256015  Poa pratensis William M. Hiesey 1947-8-23 556 Siskiyou Klamath River along Highway 96, one mile west of Beaver Creek, 2 mi. N. of Walker 548 Comment
  CAS-BOT-BC443956  Poa pringlei Dana York 2012-7-21 3142 Siskiyou Siskiyou Mountains. Klamath National Forest, Siskiyou Mountains, a few meters below summit of Red Butte. 2040 Comment
  UCD91769  Poa pringlei A. H. Murphy 1959-7-22 59 L Siskiyou Shasta National Forest. Summit between Bear Creek and Toad Lake. 2346 Comment
  CAS-BOT-BC237718  Poa secunda subsp. juncifolia Alice Eastwood 1921-7-24 10768 Siskiyou Castle Lake Comment
  CAS-BOT-BC243237  Poa secunda subsp. secunda Geo. D. Butler 1909-5-22 821 Siskiyou Near Yreka Comment
  CAS-BOT-BC482452  Poa secunda subsp. secunda Dana York 2011-8-13 3062 Siskiyou Marble Mountain Wilderness, Klamath National Forest, slopes of Black Marble Mountain 2110 Comment
  JEPS74522  Poa secunda subsp. secunda W. J. Ferlatte 1966-6-22 114 Siskiyou Josephine Lake Basin; Trinity alps 1676 Comment
  UC1132850  Poa secunda subsp. secunda M. H. Mitchell 1936-5-8 4 Siskiyou base of Schonchin Butte; Modoc Lava Beds Nat'l Monument, Dorris Quadrangle Comment
  UC39694  Poa secunda subsp. secunda Harley P. Chandler June, 1901 1664 Siskiyou Marble Mt; North Coast Ranges 2743 Comment
  HSC69266  Poa wheeleri J. O. Sawyer, J. Cole 1980-7-19 3694 Siskiyou Near FS Rd. 45N05 2018 Comment
  UCD52736  Podagrostis humilis A. H. Murphy 1954-8-11 54 D Siskiyou Round Meadow, Klamath National Forest, USFS. Comment
  UCD52766  Podagrostis humilis J. M. Tucker 1963-8-19 3781 Siskiyou Marble Mountain Wilderness Area, headwaters of Canyon Creek. 1950 Comment
  JEPS69921  Polemonium californicum Geo. D. Butler 1908-8-8 29 Siskiyou foot of bluff Marble Valley 1676 Comment
  JEPS84250  Polemonium californicum L. R. Heckard with J. Hickman et al. 1986-7-17 6517 Siskiyou n slope of Condrey Mt. 1960 Comment
  JEPS84252  Polemonium californicum L. R. Heckard with J. Hickman et al. 1986-7-17 6453 Siskiyou ridge e Kangaroo Peak (s of Lily Pad Lake, ca 5 mi n of town of Seiad Valley) 1900 Comment
  JEPS69889  Polemonium carneum Geo. D. Butler 1909-4-28 737 Siskiyou McAdams Creek Comment
  UC52662  Polemonium carneum W. P. Gibbons 1895-6 b 2 Siskiyou Comment
  UC538028  Polemonium chartaceum David H. Johnson 1934-6-11 Siskiyou Dobkins Lake , Dobkins Lake (Mt. Eddy) 1828 Comment
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Jul 22 2018
  UC164116  Polemonium micranthum Geo. D. Butler 1909-3-16 551 Siskiyou near Yreka; near Yreka Comment
  UC705719  Polemonium pulcherrimum subsp. pulcherrimum Marion Ownbey, Fred G. Meyer 1940-7-4 2186 Siskiyou on ridge above head Brewer Creek (e side of Mt. Shasta); e side Mt. Shasta, above head Brewer Creek Comment
  RSA17731  Polyctenium fremontii Elmer I. Applegate 1935-6-2 9286 Siskiyou Frenner s Ranch on old road to Lava Beds, near north boundary of the National Monument Comment
  HSC67532  Polygala cornuta J. P. Smith, Steve Selva 1970-6-14 3858 Siskiyou Comment
  CDA2791  Polygonum cuspidatum T. C. Fuller 1968-8-1 17452 Siskiyou Northeast corner of Siskiyou Avenue & Interstate 5 freeway, and in yards along Siskiyou Avenue, north limits of Dunsmuir. 0 Comment
  UC850082  Polygonum davisiae John Thomas Howell 1939-8-2 14897 Siskiyou Spirit Lake Marble Mts. Comment
  RSA237753  Polygonum davisiae Frederick W. Oettinger 1967-8-23 319 Siskiyou English Peak Meadow. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2134 Comment
  JEPS51268  Polygonum douglasii Geo. D. Butler 1908-7-20 195 Siskiyou Humbug Creek Comment
  JEPS24034  Polygonum douglasii subsp. douglasii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-3 6898 Siskiyou Siskiyou Mts., Poker Flat 1536 Comment
  UC1191243  Polygonum douglasii subsp. douglasii Herbert L. Mason 1948-7-17 13598 Siskiyou Eastern Grass Lake Comment
  UC164462  Polygonum douglasii subsp. douglasii Geo. D. Butler 1910-7-9 1706 Siskiyou Shackleford Creek 1219 Comment
  JEPS94858  Polygonum douglasii subsp. spergulariiforme Vernon H. Oswald and Lowell Ahart 1998-8-3 9405 Siskiyou 11. 5 mi w of Gazelle (junction of Gazelle-Callahan Road and USFS 41N03); junction of Gazelle-Callahan Road and USFS 41N03 1524 Comment
  UC454279  Polygonum douglasii subsp. spergulariiforme I. J. Condit July 1911 Siskiyou Dunsmuir Comment
  RSA184723  Polygonum kelloggii Gilbert Muth 1966-7-19 425 Siskiyou Horse pasture above camp, Marble Mtns. 1799 Comment
  RSA183429  Polygonum minimum J. M. Tucker 1963-8-17 3743 Siskiyou Beside trail from Red Rock Valley to top of ridge to S, and near top of ridge. Marble Mt Wilderness 1860 Comment
  SDSU9664  Polygonum persicaria D. F. Howe 1962-8-5 3394 Siskiyou 12 miles east of Happy Camp on #96. 518 Comment
  UC1059020  Polygonum polygaloides subsp. kelloggii A. H. Murphy 1956-8-16 56 M Siskiyou Klamath N. F. 1981 Comment
  CAS-BOT-BC421072  Polygonum spergulariiforme Geo. D. Butler 1910-6-20 1593 Siskiyou Yreka Comment
  CAS-BOT-BC421064  Polygonum spergulariiforme G. P. Rixford No date on label s.n. Siskiyou South side, Shaft-rock [Shaft Rock] Mt., Hilt Comment
  CAS-BOT-BC421070  Polygonum spergulariiforme Doris K. Kildale 1928-7-25 5879 Siskiyou Klamath River near Hamburg 471 Comment
  POM103319  Polygonum spergulariiforme Geo. D. Butler 1909-5-25 719 Siskiyou Dry hill, Yreka Comment
  HSC46074  Polypodium californicum J. P. Smith, Steve Selva 1970-6-14 3877 Siskiyou Road to Steinacher Creek near Somes Bar. Comment
  HSC10837  Polypogon monspeliensis C. B. Wolf 1927-8-26 Siskiyou Klamath River, 14 mi. above Happy Camp Comment
  HSC69191  Polystichum imbricans Maralyn A. Renner 1980-9-1 2698 Siskiyou S side of Devil's Punchbowl 1829 Comment
  UC150381  Polystichum imbricans subsp. imbricans A. A. Heller 1905-6-17 8061 Siskiyou near Sisson Comment
  HSC75353  Polystichum kruckebergii J. O. Sawyer, M. Mesler 1980-8-11 4037 Siskiyou Along Pacific Crest Trail just N of Jump Off in the Marble Mtn. Wilderness area Comment
  JEPS89825  Polystichum lemmonii Dean William Taylor 1972-7-4 1976 Siskiyou near Lily Pad Lake 3 mi. w. Cook and Green Pass 1981 Comment
  RSA693361  Polystichum lemmonii L. C. Wheeler 1934-8-14 3137 Siskiyou North side White Mt. About rocks, dry north slope. 1768 Comment
  HSC79127  Polystichum lemmonii C. J. Thomas 1983-10-1 75 Siskiyou Scott Mtn. Summit, 0.5 to 0.75 mi. above Big Carmen Lake 1756 Comment
  POM212871  Polystichum lemmonii L. C. Wheeler 1934-8-14 11415 Siskiyou North side White Mt. About rocks, dry north slope. 1768 Comment
  UCSB28070  Polystichum lemmonii Bacciu, Eugene 1961-6-1 Siskiyou Mt. Eddy Creek, near Weed. 1524 Comment
  HSC101150  Polystichum lonchitis Dana York 2011-8-12 3045 Siskiyou Klamath National Forest, Marble Mountain 2073 Comment
  LA2445  Polystichum lonchitis Louis Wheeler; 1934-8-6 3058 Siskiyou Rock Gulch off Jaynes Canyon 1828 Comment
  RSA237509  Polystichum lonchitis Frederick W. Oettinger 1968-9-2 661 Siskiyou Above Upper English Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 1875 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
  SJSU6266  Polystichum munitum R. W. Trivelpiece 1971-8-23 75 Siskiyou W side of Scott River c. 6 mi SW of Scott Bar, Marble Mts. 914 Comment
  HSC27013  Polystichum scopulinum J. P. Smith, J. O. Sawyer 1972-9-12 Siskiyou Scott Mtn., slopes E of Big Carmen Lake 1982 Comment
  CAS-BOT-BC102400  Populus fremontii Frank Callahan 2007-5-1 s.n. Siskiyou Moffett Creek 883 Comment
  UC375241  Populus tremuloides Geo. D. Butler 1908-8-3 533 Siskiyou Log Lake , Shackleford Creek (Shackleford Creek) Comment
  UCD77956  Populus tremuloides Robert E. Preston 2001-6-30 1663 Siskiyou Klamath National Forest, Hemlock Lake, T42N R1W se 1/4 of se 1/4 Section 14 1889 Comment
  CAS-BOT-BC102960  Populus trichocarpa Geo. D. Butler 1910-4-16 1177 Siskiyou Yreka Creek Comment
  CAS-BOT-BC102962  Populus trichocarpa Alice Eastwood 1917-9-2 6687 Siskiyou Shasta Springs Comment
  CAS-BOT-BC267172  Potamogeton foliosus A. A. Heller 1925-7-28 13908 Siskiyou In Abrams Lake near the town of Mount Shasta 1066 Comment
  UC1023838  Potamogeton pectinatus Douglas Barbe 1955-6-29 51 Siskiyou 4.1 mi se of Etna (on the Eastside Road, Klamath Mountains); Klamath Mountains 914 Comment
  CAS-BOT-BC438791  Potamogeton richardsonii Dana York; Jim Shevock 2012-7-20 3114 Siskiyou Klamath/Siskiyou Mts. Klamath National Forest, 4 km W-SW of Cook and Green Pass, in Lily Pad Lake. 1735 Comment
  UC1409356  Potentilla breweri Frederick W. Oettinger 1968-8-12 498 Siskiyou Tobacco Lake Trail Salmon Mountains, Marble Mountain Wilderness Area (Salmon Mts., high lake basins in vicinity of English Peak, Marble Mountain Wilderness area, western Siskiyou County) 1889 Comment
  CAS-BOT-BC143258  Potentilla flabellifolia Annie M. Alexander; Louise Kellogg 1949-7-28 5875 Siskiyou Sky High Valley, Marble Mountains 1767 Comment
  HSC295  Potentilla flabellifolia William J. Ferlatte 1966-8-17 390 Siskiyou Caribou Basin 1982 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
  UC618831  Potentilla gracilis David Keck 1938-7-29 11395 Siskiyou Bear Springs , Bear Springs (Mount Shasta) 1524 Comment
  JEPS81657  Potentilla millefolia L. R. Heckard with L. Constance and R. Ornduff 1969-6-24 2297 Siskiyou Murphy Wells, 0.8 mile south of Bray junction on U.S.97. 1493 Comment
  CAS-BOT-BC158527  Potentilla millefolia A. A. Heller 1905-6-20 8074 Siskiyou Gazelle Station Comment
  CAS-BOT-BC143317  Potentilla newberryi Lillian S. Mott 1967-7-2 LM 6761 Siskiyou Along highway near Dorris 1524 Comment
  UCSB24410  Prosartes hookeri Keefe, Joseph 1967-7-10 Siskiyou Indian Creek Road, 22.2 miles north of Happy Camp 1402 Comment
  JEPS124565 Image available Prunella vulgaris subsp. lanceolata Rechen 1964-7-8 88 Siskiyou 5.5 miles north of Dead Horse Summit. Comment
  CAS-BOT-BC158230  Prunus emarginata Geo. D. Butler 1908-8-26 537 Siskiyou Upper Camp, East side Saltum Mt. Comment
  CDA26150  Prunus emarginata T. C. Fuller 1960-5-26 4345 Siskiyou 2 miles south of Mt. Shasta City. 0 Comment
  RSA453222  Prunus emarginata Christopher Davidson 1975-6-5 2650 Siskiyou 2.7 miles E of town of Mt. Shasta on Mt. Shasta Uplands Rd. 1311 Comment
  SBBG15938  Prunus emarginata D. Myrick 1961-6-21 311 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station on Klamath River 19 mi W of Hwy 99 1981 Comment
  SD76177  Prunus emarginata Helen Witham 1969-10-9 601 Siskiyou One mile above pine plantation. Thicket beside road at 5000ft. Sign 1500 Comment
  UC466756  Prunus emarginata Annie M. Alexander and Louise Kellogg 1911-6-15 144 Siskiyou Jackson Lake 1798 Comment
  UCSB12914  Prunus emarginata Breedlove, Dennis 1962-6-11 Siskiyou Along State Highway 89, 8.0 miles east of McCloud; Cascade Mountains 1127 Comment
  CAS-BOT-BC357395  Pseudognaphalium microcephalum Wm. Bridge Cooke 1938-8-5 11452 Siskiyou Mount Shasta. Near MacBride Spring Comment
  CAS-BOT-BC357404  Pseudognaphalium microcephalum Louis C. Wheeler 1934-7-24 2958 Siskiyou Long John Creek, Siskiyou Mts. 1402 Comment
  UC618634  Pseudognaphalium thermale unknown 1938-8-5 11452 Siskiyou near MacBride Spring; Mount Shasta 1524 Comment
  POM206496  Pseudoroegneria spicata subsp. spicata C. F. Baker 1903-9-7 3797 Siskiyou Mt. Eddy. Comment
  POM161491  Pseudoroegneria spicata subsp. spicata Geo D. Butler 1904-6-27 848 Siskiyou Bluffs of Klamath River Comment
  HSC68454  Pseudotsuga menziesii var. menziesii Maralyn A. Renner 1980-7-4 1439 Siskiyou Clear Creek Trail, N of Trout Camp. 1037 Comment
  CHSC71869  Psilocarphus brevissimus var. brevissimus Vernon H. Oswald; Lowell Ahart 1998-9-8 9603 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir. 1112 Comment
  HSC103036  Pteridium aquilinum var. pubescens J. P. Smith 2014-6-7 13894 Siskiyou Etna Comment
  HSC63299  Pterospora andromedea M. A. Baker 1979-7-31 1095 Siskiyou Head of Tickner Creek on trail to Johnson's Hunting Trail 1400 Comment
  SEINET924200  Pterospora andromedea Carl B. Wolf 1934-1 6019 Siskiyou SW slope of Mt. Shasta, 4 mi NW of Wagon Camp 1524 Comment
  UC933382  Pterospora andromedea Annie M. Alexander and Louise Kellogg 1948-9-9 5614 Siskiyou near start of 2-mi trail from Cook & White Mine to Taylor Lake; Siskiyou Mountains Comment
  RSA578036  Puccinellia distans L. C. Wheeler 1935-6-30 3634 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  SEINET5338232  Pulsatilla occidentalis G. Butler 1910-7-10 1736 Siskiyou Upper Campbell Lake. 1676 Comment
  UCR13736  Purshia tridentata N. R. Zabriskie, W. W. Zabriskie 1971-7-23 411 Siskiyou Hwy 89 just east of McCloud, southeast of Mt. Shasta Comment
  LA208177  Purshia tridentata W. B. C.; 1938-6-24 Siskiyou Mount Shasta, along the Sisson Southern Trail 1523 Comment
  CAS-BOT-BC147909  Purshia tridentata var. tridentata Alice Eastwood; John Thomas Howell 1934-4-20 1759 Siskiyou Near Yreka along Shasta River Comment
  UC375386  Purshia tridentata var. tridentata Geo. D. Butler 1908-7-4 285 Siskiyou near Shasta River (Yreka Creek); Yreka Creek Comment
  JEPS26519  Pyrola aphylla Lauramay T. Dempster 1961-7-1 1848 Siskiyou Mill Creek near Etna 1219 Comment
  RSA0082808  Pyrola aphylla M. B. Dunkle 1944-7-17 9119 Siskiyou Deer Creek. 1767 Comment
  CAS-BOT-BC465504  Pyrola asarifolia W. R. Dudley 1893-6-21 s.n. Siskiyou Near Mt. Shasta Comment
  CAS-BOT-BC462803  Pyrola dentata W. R. Dudley 1899-8-15 s.n. Siskiyou Toward Black Fox Comment
  HSC19200  Pyrola picta J. O. Sawyer 1968-9-10 689 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  UCD117827  Pyrola picta J. M. Tucker 1974-7-28 4314 Siskiyou Adjacent to camp at Haypress Meadows, Marble Mountain Wilderness Area. 1463 Comment
  CAS-BOT-BC466130  Pyrola picta John Thomas Howell 1937-7-26 13520 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC466132  Pyrola picta Gilbert Muth 1965-8-10 s.n. Siskiyou Marble Valley and long upper trails Comment
  CAS-BOT-BC466140  Pyrola picta L. E. Smith 1913-9-14 s.n. Siskiyou Mt. Eddy Comment
  CAS-BOT-BC466142  Pyrola picta John Thomas Howell 1939-8-5 15073 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  SD88340  Pyrola picta Darley F. Howe 1972-7-6 Siskiyou 3.2 miles south of Oregon state line on road to Happy Camp 1402 Comment
  CHSC88104  Pyrrocoma lanceolata Jenny Marr 1993-7-1 114 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CAS-BOT-BC362384  Pyrrocoma racemosa var. racemosa Thos. C. Fuller 1958-8-13 s.n. Siskiyou Scott Valley, 5 mi. s. of Ft. Jones Comment
  UC829439  Pyrrocoma racemosa var. racemosa A. A. Heller 1917-9-7 12980 Siskiyou 5 mi s Gazelle; Shasta Valley 914 Comment
  CAS-BOT-BC68650  Quercus chrysolepis Louis C. Wheeler 1934-9-4 3242 Siskiyou Klamath National Forest, Bear Creek 1371 Comment
  UC1409457  Quercus chrysolepis Frederick W. Oettinger 1969-8-16 1252 Siskiyou lower Toms Lake Basin, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area 1859 Comment
  UC164057  Quercus chrysolepis Geo. D. Butler 1910-6-7 1530 Siskiyou Greenhorn Mountain Comment
  CAS-BOT-BC94648  Quercus garryana Doris K. Kildale 1928-8-18 6430 Siskiyou North Fork Salmon River, at Finley Camp Comment
  HSC36757  Quercus garryana J. P. Smith 1974-5-25 7396 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  LA205288  Quercus garryana Louis Wheeler; 1934-10-7 3312 Siskiyou Siskiyou Mountains, Oak Knoll Ranger Station, Klamath River 670 Comment
  UC767803  Quercus garryana Wm. H. Brewer 1862-1 1462 Siskiyou near Shasta Comment
  CAS-BOT-BC62754  Quercus garryana var. breweri John Thomas Howell 1934-7-4 12383 Siskiyou lava beds between Timbered Crater and Little Hot Springs Valley Comment
  CAS-BOT-BC62765  Quercus garryana var. breweri Marion Ownbey; Fred G. Meyer 1940-7-8 2229 Siskiyou summit of Siskiyou Mountains, 21 miles north of Happy Camp Comment
  JEPS37953  Quercus garryana var. breweri Geo. D. Butler 1908-8-16 233 Siskiyou e of Yreka Comment
  RSA237814  Quercus garryana var. breweri Frederick W. Oettinger 1969-8-24 1540 Siskiyou Growing just SW of the brook on the W side of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  UCD46071  Quercus garryana var. garryana Frank C. Vasek 1975-6-29 750629 7A Siskiyou 2.3 miles east of Callahan, Siskiyou County, California. Comment
  RSA476805  Quercus garryana var. garryana Bonnie C. Templeton 1957-6-21 s.n. Siskiyou N of Callahan Comment
  HSC27626  Quercus kelloggii Carl W. Mize 1972-8-17 105 Siskiyou Near Gates Creek 366 Comment
  CAS-BOT-BC104364  Quercus sadleriana Sandra L. Holloway 1963-10-12 77 Siskiyou Junction Red Rock valley trail and Canyon Creek trail, Marble Mountain Wilderness Area 1341 Comment
  CAS-BOT-BC104370  Quercus sadleriana G. D. Hanna; Salem Rice 1952-10-17 s.n. Siskiyou Sanger Lake Comment
  CDA15568  Quercus sadleriana G. F. Hrusa 1998-7-5 14676 Siskiyou Siskiyou Mountains; S side below summit on Happy Camp-O'Brien Rd. on Ca. side of State Boundary. Comment
  HSC27623  Quercus sadleriana Carl W. Mize 1972-6-23 99 Siskiyou Along trail from Camp 3 976 Comment
  HSC62285  Quercus sadleriana Ruby Van Deventer Aug 1957 Siskiyou Youngs Valley. Comment
  OBI69128  Quercus sadleriana Dieter H. Wilken, E. Painter 2000-8-10 15852 Siskiyou Just S of Del Norte and Josephine (OR) county lines, NNE of Little Grayback, near head of Indian creek. O'Brien-Happy camp road 1500 Comment
  UCD47222  Quercus sadleriana R. Tofsrud; J. M. Tucker 1948-8-3 1779 D Siskiyou Summit of Happy Camp- O'Brien (Oregon) road, on Del Norte-Siskiyou county line, California. 1554 Comment
  UCD47259  Quercus sadleriana John M. Tucker 1972-8-8 4247 A Siskiyou (Q. garryana Hook. var. breweri (Engelm.) Jepson). California, Siskiyou Co.; Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 mi. west-southwest of Marble Valley Guard Station (extreme southeast corner of Section 20, R.11W., T.42N. 1828 Comment
  UCD47273  Quercus sadleriana G. L. Stebbins 1972-7-3 s.n. Siskiyou (Q. garryana Hook. var. breweri (Engelm.) Jepson). California, Siskiyou Co.; 0.5 mi. east of Cook and Green Pass: T. 47N, R 11W, Sect. 8, NE quarter of NE quarter. 1371 Comment
  UCD47274  Quercus sadleriana Dean W. Taylor 1972-7-1 s.n. Siskiyou (Q. garryana Hook. var. breweri (Engelm.) Jepson). California, Siskiyou Co.; 0.5 mi. east of Cook and Green Pass, north of Seiad Valley, T. 47N, R11W, Sect. 9, Seiad Valley Quadrangle; 1463 Comment
  UCR210398  Quercus sadleriana J. R. Shevock, David Toren 2000-9-1 20099 Siskiyou Siskiyou Mountains, Rogue River National Forest, Applegate River Drainage, along trail 959 toward Bear Gulch about 100 yards north of Cook and Green Pass off of road 1055 1433 Comment
  UCR80887  Quercus sadleriana G. Fred Hrusa 1993-8-14 11400 Siskiyou Summit of Pass between Happy Camp, California and O'Brien, Oregon. Just on the California side of the state boundary 1375 Comment
  OBI14234  Quercus sadleriana R. Rimo Bacigalupi 1935-10-20 Siskiyou Summit of Indian Cyn rd, above Happy Camp on road to Walker, Oregon 457 Comment
  HSC69236  Quercus vacciniifolia Maralyn A. Renner 1980-9-1 2709 Siskiyou S side of Devil's Punchbowl 1829 Comment
  CAS-BOT-BC328129  Raillardella pringlei Douglas Barbe 1959-7-11 538 Siskiyou Gumboot Lake, headwaters of the South Fork Sacramento River, 15 miles west of Mount Shasta, Shasta National Forest 1767 Comment
  RSA638899  Ranunculus J. M. Tucker 1963-7-8 3733 Siskiyou Marble Mountain Wilderness Area, trail to Marble Valley, ca. 2 mi. south of Paradise Lake. 1982 Comment
  UC480880  Ranunculus aquatilis var. capillaceus Milo S. Baker 1898-8-1 470 Siskiyou Medicine Lake Comment
  HSC28662  Ranunculus aquatilis var. diffusus Frederick W. Oettinger 1969-9-5 1683 Siskiyou Marble Mtn. Wilderness Area, Salamander Pond near Abbott's Lake 1768 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
  UC165947  Ranunculus flammula Geo. D. Butler 1910-7-12 1741 Siskiyou Shackleford Creek 1219 Comment
  RSA0005358  Ranunculus marmorarius H. P. Chandler 1901-06 1691 Siskiyou Near Marble Mountain 2134 Comment
  UC166128  Ranunculus occidentalis Geo. D. Butler 1909-4-25 683 Siskiyou Quartz Valley Comment
  CHSC1488  Ranunculus occidentalis var. dissectus V. Holt 1943-8-7 Siskiyou Marble mountains. 1828 Comment
  UC796607  Ranunculus orthorhynchus var. orthorhynchus Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11820 Siskiyou Parker Ranch Plowman's (Noyes) Valley, e. fork of Scott River Drainage 1203 Comment
  RSA238023  Rhamnus purshiana Frederick W. Oettinger 1968-8-23 617 Siskiyou Mid way down the steep spillway from Diamond Lake to upper English Lake and along the spillway stream. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness. 1921 Comment
  RSA390633  Rhamnus purshiana Louis C. Wheeler 1934-7-17 2915 Siskiyou Siskiyou Mts, Cottonwood Creek 945 Comment
  CAS-BOT-BC6199  Rhamnus rubra subsp. obtusissima E. B. Copeland 1903-8-15 3833 Siskiyou Sisson 1097 Comment
  HSC27604  Rhododendron occidentale Carl W. Mize 1972-6-10 49 Siskiyou ca. 50 ft. above Steinacher Creek and 1/2 mi. from Wooley Creek 335 Comment
  POM127811  Rhus trilobata var. quinata L. R. Abrams 1922-8-6 9909 Siskiyou Klamath River 6 miles below Hornbrook Comment
  CHSC4532  Ribes J. E. Bowlin 1967-7-18 42 Siskiyou Ca. 3.4 mi w of Mount Shasta Ski Bowl. On side of road in chapperal, and brush. 2164 Comment
  CAS-BOT-BC438008  Ribes W. R. Dudley 1893-6-26 s.n. Siskiyou Lava slopes on Mt. Shasta Comment
  UC165746  Ribes binominatum Geo. D. Butler 1908-8-4 259 Siskiyou head Shackleford Creek Comment
  CAS-BOT-BC108767  Ribes cereum Ella Dales Cantelow 1938-7-2 2369 Siskiyou 12.5 miles east of Sierra City. Comment
  UCR80273  Ribes lacustre L. C. Wheeler 1934-6-14 2713 Siskiyou Siskiyou Mountains, Arrastre Creek off Hungry Creek. 1280 Comment
  CAS-BOT-BC173385  Ribes lobbii Ira L. Wiggins 1955-7-22 13460 Siskiyou Ridge W of China Creek S side of S Fork of Salmon River 960 Comment
  HSC47617  Ribes lobbii J. P. Smith 1977-5-15 9072 Siskiyou The road leading through International Paper property to the Duck Lakes trailheads 1524 Comment
  UC1736425  Ribes lobbii Dean W. Taylor 1999-6-10 17249 Siskiyou Marble Mountains, Mill Creek, ca. 4 miles W from Mugginsville in Quartz Valley, northerly facing slopes near watershed divide with Kidder Creek 1584 Comment
  RSA0021141  Ribes lobbii J. P. Smith 1977-5-15 9072 Siskiyou The road leading through International Paper property to the Duck Lakes trailheads. 1524 Comment
  RSA0021628  Ribes lobbii J. P. Smith 1974-5-25 7443 Siskiyou Near junction of Road 8 and French Creek Road. 1280 Comment
  CAS-BOT-BC212490  Ribes marshallii Doris K. Kildale 1928-8-20 6605 Siskiyou Lily Pad Lake nera Hancock Lookout Trail to Marble Mt. 1981 Comment
  HSC44983  Ribes marshallii J. O. Sawyer 1978-6-21 3287 Siskiyou Marble Mtn. Wilderness Area, along trail N of Clear Lake 1951 Comment
  HSC98217  Ribes nevadense J. O. Sawyer 1969-7-9 1227 Siskiyou SE facing slope above South Sugar Lake 1890 Comment
  UC73099  Ribes nevadense Milo S. Baker 1898-1 Siskiyou Bear Mts. Siskiyou Mts. Comment
  HSC26225  Ribes roezlii var. cruentum J. P. Smith, J. O. Sawyer 1972-5-27 5358 Siskiyou Hwy. 3 near the Scott Mtn. Campground on divide between Scott and Trinity Rivers 1601 Comment
  HSC60105  Ribes roezlii var. cruentum M. A. Baker 1977-6-27 388 Siskiyou Happy Camp. Comment
  HSC68479  Ribes roezlii var. cruentum Maralyn A. Renner 1980-6-8 815 Siskiyou Slopes N of Moffett Creek 945 Comment
  CAS-BOT-BC200005  Ribes roezlii var. cruentum L. E. Detling 1950-6-9 6600 Siskiyou LBlack Butte Summit (Hwy. 99) 1188 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-BC173902  Ribes velutinum Doris K. Kildale 1929-6-25 8369 Siskiyou 6 miles north of Hornbrook on Klamath River 609 Comment
  HSC100037  Ribes velutinum J. P. Smith, & J. O. Sawyer 2010-5-6 12823 Siskiyou Along Rd. 92K02, E of Copco. 778 Comment
  UC165744  Ribes velutinum Geo. D. Butler 1910-5-21 1374 Siskiyou Klamath Rim Comment
  CAS-BOT-BC168808  Ribes viscosissimum John Thomas Howell 1937-7-25 13462 Siskiyou Caribou Basin, Salmon-Trinity Alps 2133 Comment
  HSC23473  Ribes viscosissimum J. O. Sawyer 1968-6-18 220 Siskiyou Headwaters of Blake's Fork of S Russian Creek 1738 Comment
  HSC33927  Ribes viscosissimum J. O. Sawyer 1968-7-23 594 Siskiyou Along trail from Brown's Valley to Caribou Basin including areas around Snowslide Lake and Caribou Lake. 1829 Comment
  CHSC118456  Rigiopappus leptocladus Richard R. Halse 2016-5-29 9719 Siskiyou Along Hilt Road ca. 2.1 miles northwest of Hilt on the Oregon/California State Line. 876 Comment
  UC1173693  Romanzoffia californica Joseph P. Tracy 1939-4-29 16269 Siskiyou Somes Bar 182 Comment
  CHSC65221  Rorippa columbiae V. Parker; J. Cooper, M. Ulloa-Cruz 1994-5-25 600 Siskiyou Shasta-Trinity National Forests. McCloud Ranger District. Dry Lake area. Comment
  RSA240074  Rorippa curvisiliqua Frederick W. Oettinger 1969-8-21 1480 Siskiyou Ethel Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UC1023841  Rorippa nasturtium-aquaticum Douglas Barbe 1955-6-29 30 Siskiyou 1 mi e Callahan (Klamath Mountains); , e of Callahan 975 Comment
  JEPS47279  Rosa Ruby Van Deventer 1938-7-31 270 Siskiyou Twin Valley 1219 Comment
  UC1871377  Rosa Barbara Ertter 2006-7-30 18748 Siskiyou Yreka Creek off Deer Creek Way at E edge of Yreka near Jct I-5 and Rt 3 762 Comment
  HSC26766  Rosa californica J. P. Smith, J. O. Sawyer 1971-9-18 4841 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  UC768890  Rosa eglanteria Doris K. Kildale 1930-5-31 9805 Siskiyou island in river near Hornbrook; Klamath River 609 Comment
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  HSC23474  Rosa gymnocarpa J. O. Sawyer 1968-6-18 182 Siskiyou Above S Russian Creek on W side. 1463 Comment
  RSA237791  Rosa gymnocarpa Frederick W. Oettinger 1967-7-30 223 Siskiyou Outlet stream N end of Abbotts Lake, about 200 yards down from the lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1768 Comment
  HSC29495  Rosa pisocarpa Frederick W. Oettinger 1969-8-16 1408 Siskiyou Marble Mtn. Wilderness Area, Wire grass meadow near English Lake 1799 Comment
  RSA237816  Rosa pisocarpa Frederick W. Oettinger 1968-8-23 612 Siskiyou Just below Diamond Lake on way towards English Lake. Salmon Mtns. The High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2058 Comment
  UC1871385  Rosa pisocarpa Barbara Ertter 2006-7-30 18742 Siskiyou S of Juanita Lake in mountains between Shasta and Butte valleys, 2.2 mi N of intersection with Little Shasta Road. 1584 Comment
  UC527337  Rosa pisocarpa C. B. Wolf 1931-9-2 2390 Siskiyou at roadside near Fish Hatchery; Mt. Shasta City (Sisson) 1066 Comment
  UC768887  Rosa pisocarpa Doris K. Kildale 1929-7-20 8715 Siskiyou Raspberry Lake upper Indian Creek 1828 Comment
  HSC43137  Rosa rubiginosa Ken Stillman 1976-8-24 414 Siskiyou E and N slopes of Williams Point 366 Comment
  HSC44717  Rosa rubiginosa J. O. Sawyer, E. Cope 1977-6-18 2912 Siskiyou Along Clear Creek trail below Ten Mile Creek 457 Comment
  CAS-BOT-BC147139  Rubus glaucifolius Louis C. Wheeler 1934-8-31 3233 Siskiyou Bear Creek off West Fork Beaver Creek, Siskiyou Mts. 1767 Comment
  UC1190139  Rubus glaucifolius Ira L. Wiggins 1955-7-24 13494 Siskiyou ridge betw upper reaches of China Creek and Blind Horse Creek; btw upper reaches China and Blind Horse Creeks 1645 Comment
  UCR95195  Rubus lasiococcus L. C. Wheeler 1963-8-29 8307 Siskiyou Siskiyou Mountains: W fork Clear Creek 1433 Comment
  CAS-BOT-BC147981  Rubus leucodermis Carl B. Wolf 1927-8-27 1134 Siskiyou At mouth of Crawford Creek, Klamath River Comment
  CAS-BOT-BC147986  Rubus leucodermis Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-29 s.n. Siskiyou Road to Mumbo Basin, Trinity Mts. 1889 Comment
  UC329936  Rubus leucodermis J. G. Lemmon 1888-9-7 Siskiyou near Mt. Eddy; near Mt. Eddy Comment
  HSC59616  Rubus parviflorus J. P. Smith, Steve Selva 1970-6-16 4048 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  CAS-BOT-BC157160  Rubus ursinus Doris K. Kildale 1929-8-23 8809 Siskiyou Young's Valley, on trail to Preston Peak Comment
  CAS-BOT-BC157162  Rubus ursinus A. A. Heller 1916-6-20 12419 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  UC850502  Rumex acetosella A. A. Heller 1915-8-24 12209 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  CHSC71495  Rumex crispus Vernon H. Oswald; Lowell Ahart 1998-7-21 9345 Siskiyou Northeast of Weed and east of Grass Lake on the south side of Tennant Rd. 0.2 mi southeast of Old State Hwy. to Bray and on the east side of the intermittent stream draining Dry Lake. 1402 Comment
  JEPS39874  Rumex crispus Geo. D. Butler 1908-6-25 513 Siskiyou near Yreka (Butler's Ranch) Comment
  RSA611388  Sagina apetala L. C. Wheeler 1934-6-2 2606 Siskiyou Klamath River at Cherry Flat; Siskiyou Mts. 518 Comment
  RSA577798  Sagittaria cuneata L. C. Wheeler 1935-7-20 3669 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  SDSU11444  Sagittaria cuneata D. F. Howe 1972-7-8 4882 Siskiyou Grass Lake, 21 mies north of Weed on #97 1524 Comment
  CAS-BOT-BC103367  Salix bonplandiana Thos. Howell 1889-4-14 1393 Siskiyou Hornbrook Comment
  CAS-BOT-BC102816  Salix boothii John Thomas Howell 1939-8-7 15132 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  CAS-BOT-BC103535  Salix commutata John Thomas Howell 1939-8-7 15131 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  CAS-BOT-BC103545  Salix commutata Doris K. Kildale 1928-8-19 6572 Siskiyou Hancock Lake on trail to Marble Mt. 2133 Comment
  HSC19410  Salix eastwoodiae J. O. Sawyer 1968-7-22 540 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  RSA215632  Salix eastwoodiae Gilbert Muth 1969-8-11 1356 Siskiyou Boulder Peak. 2378 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
  POM107070  Salix exigua Geo. D. Butler 1909-9-20 1082 Siskiyou Yreka Creek. Comment
  CAS-BOT-BC107784  Salix hindsiana L. B. Kildale 1930-5-31 9792 Siskiyou Island in Klamath River near Hornbrook Comment
  POM229947  Salix laevigata Louis C. Wheeler 1935-5-11 3473 Siskiyou Klamath River at Ash Creek; Siskiyou Mountains. 610 Comment
  HSC75712  Salix lasiandra J. P. Smith, J. O. Sawyer 1972-5-28 Siskiyou 5 mi. S of Etna on Hwy. 3 915 Comment
  HSC86544  Salix lasiandra D. K. Imper 1987-6-6 Siskiyou 8 mi. E of Somes Bar 1372 Comment
  CAS-BOT-BC107079  Salix lasiolepis Mrs. H. P. Bracelin 1936-4-15 832 Siskiyou East side of Mt. Eddy; Wagon Creek above Metcalf ranch house; 8-9 miles N.W. of Mt. Shasta City 1203 Comment
  CAS-BOT-BC124534  Salix lasiolepis var. lasiolepis Alice Eastwood 1912-7-17 1181 Siskiyou Sisson Comment
  CAS-BOT-BC124544  Salix lasiolepis var. lasiolepis W. R. Dudley 1899-8-8 s.n. Siskiyou Near Big Spring above Sisson Comment
  CAS-BOT-BC128307  Salix lasiolepis var. lasiolepis Carl B. Wolf 1927-8-27 1117 Siskiyou On the Klamath River, Happy Camp Comment
  UC481729  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou near hwy. at Flume Creek Camp; Flume Creek - tributary of Pit River 555 Comment
  CAS-BOT-BC126166  Salix scouleriana Mrs. H. P. Bracelin 1931-6-19 435 Siskiyou North base of Mount Eddy, about 10 km. northwest of Shasta City; east of Metcalf ranch house 1080 Comment
  RSA238266  Salix scouleriana Frederick W. Oettinger, Robert F. Thorne 1969-8-8 1308 Siskiyou English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1738 Comment
  UCD111857  Salix scouleriana Mrs. H. P. Bracelin 1931-6-19 435 Siskiyou North base of Mount Eddy, about 10 km. northwest of Shasta City, east of Metcalf ranch house. 1080 Comment
  UC198727  Salix sitchensis Annie M. Alexander and L. Kellogg 1911-6-23 180 Siskiyou Jackson Lake 1798 Comment
  RSA17697  Salvia dorrii subsp. dorrii Elmer I. Applegate 1935-6-7 9408 Siskiyou Indian Well, 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
  UC144539  Salvia sonomensis A. A. Heller 1905-6-16 8044 Siskiyou near Sisson Comment
  CAS-BOT-BC235045  Sambucus Alice Eastwood 1921-7-31 11017 Siskiyou Shasta Springs Comment
  UC164071  Sambucus mexicana Geo. D. Butler 1910-5-29 1425 Siskiyou near Yreka Comment
  CAS-BOT-BC238893  Sambucus nigra subsp. caerulea Alice Eastwood 1917-9-2 6662 Siskiyou Shasta Springs Comment
  HSC65135  Sambucus nigra subsp. caerulea J. P. Smith, Steve Selva 1970-7-15 4347 Siskiyou Klamath National Forest, road to Happy Camp. 732 Comment
  CDA26417  Sanguisorba annua G. D. Barbe, T. C. Fuller 1972-6-14 946 Siskiyou North of Weed, ca. 1 mile north of US 97 on Hoy Road. 0 Comment
  UC1037445  Sanguisorba minor subsp. muricata Douglas Barbe 1955-7-5 97 Siskiyou on French Creek 11 mi s Etna; Klamath Mountains, s of Etna on French Creek 1066 Comment
  HSC19456  Sanicula graveolens J. O. Sawyer 1969-7-18 1394 Siskiyou W facing slope above S Russian Creek 1860 Comment
  OBI8761  Sanicula tuberosa Tracey Call, Viola Call 1964-6-20 2275 Siskiyou Scott Mt. campground. 168 Comment
  SEINET2140098  Santalaceae R. L. Mathiasen 2007-1 2007 -39 Siskiyou 6.4 km W. of McCloud on St. Rte. 89 at turn to Mt. Shasta Ski Park. 1340 Comment
  SEINET2140099  Santalaceae R. L. Mathiasen 2007-1 2007 -36 Siskiyou At jct. of Greyback Rd. and rd. to Kelly Lake. 1345 Comment
  UCD101779  Sarcobatus vermiculatus Collector unknown 1950-1 s.n. Siskiyou Siskiyou County. Comment
  JEPS84268  Saxifraga aprica L. R. Heckard with J. Hickman et al. 1986-7-17 6465 Siskiyou 5 mi n of the town of Seiad Valley (Trail up Kangaroo Peak, s of Lily Pad Lake); Kangaroo Peak 2011 Comment
  UC166552  Saxifraga californica Geo. D. Butler 1910-3-25 1138 Siskiyou Shasta River hills Shasta River Comment
  JEPS80512  Saxifraga odontoloma Gilbert Muth 1966-7-24 442 Siskiyou Marble Valley; Marble Mountain Wilderness Area, Marble Valley 1792 Comment
  POM93446  Saxifraga oregana Geo. D. Butler 1910-6-19 1590 Siskiyou Goosenest foothills. 1524 Comment
  RSA211107  Saxifraga tolmiei William J. Ferlatte 1966-8-5 356 Siskiyou Caribou Mountain. 2470 Comment
  JEPS47486  Saxifragopsis fragarioides Geo. D. Butler 1909-7-15 897 Siskiyou 3 mi ene Finley's Camp (Highland Mine); Salmon Mts. 1706 Comment
  POM354594  Saxifragopsis fragarioides M. B. Dunkle 1945-7-22 9242 Siskiyou Marble Mts., Klamath National Forest. Comment
  RSA238315  Saxifragopsis fragarioides Frederick W. Oettinger 1968-8-5 403 Siskiyou Mount Hemlock Forest, Shasta Ridge, between Diamond Lake and English Peak. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2073 Comment
  SEINET5717258 Image available Schoenoplectus acutus var. occidentalis Philip E. Hyatt 2002-1 11138 Siskiyou Happy Camp community, Along Klamath River. north riverbank of Klamath River within 10 feet of water. 41 deg. 47' 36.1'' 123 deg. 22. 05'.3''. Comment
  JEPS80665  Scirpus microcarpus W. B. and V. G. Cooke 1977-9-22 54824 Siskiyou near Deter Camp (Mt. Shasta); , near Deter Camp Comment
  UC184012  Scirpus microcarpus Geo. D. Butler 1908-8-28 81 Siskiyou Oro Fino Oro Fino (wet meadow) Comment
  UC1549246  Scutellaria antirrhinoides Richard Olmstead 1983-7-12 472 Siskiyou 6 mi w of Sawyers Bar (1 mi e of Red Bank C.G., North Fork Salmon River Road); North Fork Salmon River Road 603 Comment
  HSC29313  Scutellaria antirrhinoides Frederick W. Oettinger 1969-8-1 1128 Siskiyou Marble Mtn. Wilderness Area, Wiregrass Meadow below English Lake 1677 Comment
  RSA105428  Scutellaria siphocampyloides Douglas Barbe 1955-7-1 80 Siskiyou Steep rocky hill just behind Callahan to the north. 976 Comment
  HSC36812  Secale cereale J. P. Smith 1974-5-27 7622 Siskiyou Along FS Rd. 47N03 1280 Comment
  JEPS96686  Sedum laxum subsp. flavidum Dean W. Taylor 1996-6-28 15756 B Siskiyou Antelope Mountain (about 8 air miles south of Yreka) Comment
  CHSC118116  Sedum moranense Nick Otting; Dick Brainerd 2014-7-6 3832 Siskiyou Klamath Mountains, Lake Mountain, hairpin of foresst road just below peak, 7 air miles west of Scott Bar. UTM zone 10 489704E 4621479N WGS84. 2034 Comment
  HSC19526  Sedum obtusatum subsp. retusum J. O. Sawyer 1968-7-10 480 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  CAS-BOT-BC64643  Sedum oregonense John Thomas Howell 1937-7-25 13450 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  CAS-BOT-BC64644  Sedum oregonense John Thomas Howell 1937-7-26 13566 Siskiyou Between Big Flat and Caribou Gulch, Siskiyou Co. 2286 Comment
  CAS-BOT-BC94958  Sedum oregonense R. C. Wenk 2005-7-15 214 Siskiyou Trinity Alps, above South Fork of Salmon River, along Yellow Rose Mine Trail, N along ridge toward Preacher's Peak 2133 Comment
  HSC74918  Sedum radiatum J. P. Smith, Jennifer Whipple 1978-7-2 9967 Siskiyou Klamath National Forest, ridge trail E of Cook and Green Pass 1341 Comment
  CAS-BOT-BC59093  Sedum spathulifolium A. A. Heller 1905-6-1 7932 Siskiyou Between Dunsmuir and Upper Soda Spring. Comment
  HSC101838  Sedum spathulifolium J. P. Smith, J. O. Sawyer, R. J. Cole 2011-5-22 13173 Siskiyou Along road from Cecilville to Forks of Salmon 743 Comment
  CAS-BOT-BC59094  Sedum spathulifolium L. B. Kildale 1930-6-1 9733 Siskiyou Salmon River between Oak Bottom and Soames Bar. Comment
  HSC43058  Sedum spathulifolium var. spathulifolium Ken Stillman 1976-8-24 448 Siskiyou E and N slopes of Williams Point 366 Comment
  RSA237787  Selaginella densa var. scopulorum Frederick W. Oettinger 1968-9-3 680 Siskiyou West of Horse Range Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area; 1905 Comment
  UCR143036  Selaginella densa var. scopulorum L. C. Wheeler 1934-8-14 3122 Siskiyou Klamath Ranges; Siskiyou Mountains, 0.5 mile west of White Mountain 1921 Comment
  RSA641070  Selaginella densa var. scopulorum Louis Cutter Wheeler 1963-8-31 8314 Siskiyou Siskiyou Mountains. Devil's Punch Bowl off Clear Creek. 1432 Comment
  HSC34089  Selaginella scopulorum J. O. Sawyer 1969-7-9 1256 Siskiyou W facing slope above Bingham Lake 2317 Comment
  RSA576443  Selaginella wallacei Louis Cutter Wheeler 1935-4-14 3419 Siskiyou West Fork Seiad Creek, Siskiyou Mtns. (Mt Diablo Mer) Comment
  UCR124281  Selaginella wallacei L. C. Wheeler 1958-8-19 7400 Siskiyou Seiad Creek Mine 903 Comment
  UC185219  Selaginella wallacei Geo. D. Butler 1909-7-15 874 Siskiyou Salmon Range 1828 Comment
  CDA8581  Senecio aronicoides T. C. Fuller 1962-6-13 8974 Siskiyou Highway 89 to McCloud, 4.4 miles west of Bartle. 0 Comment
  UC904780  Senecio fremontii var. occidentalis W. Bridge Cooke 1949-8-22 25559 Siskiyou Summit Trail Mount Lassen Volcanic National Park 2895 Comment
  CDA8621  Senecio hydrophilus David Van Baren 2007-8-27 PDR# 1278072 Siskiyou Butte Valley Wildlife Area; Pond 8A-Z. Comment
  UC166212  Senecio hydrophilus Geo. D. Butler 1908-8-27 236 Siskiyou in bogs near Oro Fina Comment
  CAS-BOT-BC364435  Senecio triangularis A. A. Heller 1915-8-26 12226 Siskiyou Heather Meadow near the head of Wagon Creek Canon [Canyon], Mt. Eddy 2590 Comment
  CAS-BOT-BC364445  Senecio triangularis Doris K. Kildale 1929-7-20 8707 Siskiyou Raspberry Lake, upper South Fork of Indian Creek 1828 Comment
  JEPS37453  Senecio triangularis W. L. Jepson 1937-7-30 18561 Siskiyou Poker Flat, headwaters of Indian Creek Siskiyou Mts., Indian Creek 1584 Comment
  RSA264986  Senecio triangularis G. L. Clifton 1975-7-28 5765 Siskiyou Near Cook and Green Pass near the Seiad Valley 1646 Comment
  UCR37822  Senecio triangularis K. T. Stillman 1976-7-30 311 Siskiyou Marble Mtn Wilderness Area, trail from Big Rock Camp to Jumpoff 1982 Comment
  RSA233678  Sibbaldia procumbens Robert F. Thorne, F. Oettinger 1969-8-10 38965 Siskiyou S slope of Mt. Shasta, Panther Creek Meadows 2195 Comment
  CAS-BOT-BC213143  Sidalcea Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  JEPS67298  Sidalcea asprella W. L. Jepson 1937-7-30 18551 Siskiyou Poker Flat Siskiyou Mts., headwaters Indian Creek (headwaters Indian Creek) 1584 Comment
  UC1483451  Sidalcea glaucescens Maralyn A. Renner 1980-6-23 997 Siskiyou West Fork Seiad Creek , Seiad Valley Quad. (Klamath National Forest) 877 Comment
  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
  RSA0048462  Sidalcea oregana Geo. E. Julian 1962-7-20 s.n. Siskiyou Mt. Shasta. Comment
  UCD116830  Sidalcea oregana J. M. Tucker 1950-7-24 1959 Siskiyou southern edge of Grass Lake, beside Highway 97, about 22 miles northeast of Weed. Comment
  JEPS67291  Sidalcea oregana subsp. oregana W. L. Jepson 1940-7-1 20088 Siskiyou 6 mi e McCloud (McCloud River); , e of McCloud, Fowlers Camp 975 Comment
  JEPS84215  Sidalcea oregana subsp. oregana L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6322 Siskiyou ca 7 mi nne Seiad Valley (w of Cook and Green Pass, ca 0.5 air mi from Red Butte, e slopes) 1750 Comment
  HSC76662  Sidalcea oregana subsp. spicata K. T. Stillman 1976-7-22 290 Siskiyou Marble Mtn. Wilderness Area Comment
  UC108900  Sidalcea oregana subsp. spicata T. S. Brandegee 1887-7-1 Siskiyou Sisson's Comment
  UC164432  Sidalcea oregana subsp. spicata Geo. D. Butler 1909-6-22 905 Siskiyou Goosenest Mountain foothills of Goosenest Mountain Comment
  HSC101397  Sidalcea setosa J. P. Smith, J. O. Sawyer, R. J. Cole 2010-8-7 13054 Siskiyou Klamath National Forest. Road to Crater Lake off Forest Service Road 40N24. 1860 Comment
  RSA237849  Silene campanulata subsp. glandulosa Frederick W. Oettinger 1969-8-22 1497 Siskiyou On the south side of Horses Hole Pond above Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1875 Comment
  HSC42974  Silene campanulata subsp. greenei J. O. Sawyer, Ken Stillman 1976-5-29 2741 Siskiyou Along Specimen Creek 915 Comment
  RSA48002  Silene campanulata subsp. greenei Roxana S. Ferris, Laura Lorraine 1948-6-12 11806 Siskiyou At Mule Creek crossing n Scott Mountain Road south of Callahan. 1524 Comment
  HSC19524  Silene douglasii J. O. Sawyer 1969-8-1 1629 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  UCSB63905  Silene douglasii 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
  HSC19523  Silene douglasii J. O. Sawyer 1969-7-2 1032 Siskiyou NE facing slope near summit above Lipstick Lake 2226 Comment
  CAS-BOT-BC388962  Silene grayi C. L. Hitchcock; J. S. Martin 1939-7-9 5320 Siskiyou Between King's Castle and Black Mt., west side of ridge 1828 Comment
  HSC92350  Silene grayi Jennifer Whipple 1976-7-14 1480 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  UC1188082  Silene grayi Philip A. Munz 1960-8-22 24188 Siskiyou Panther Meadows , Panther Meadows (Mt. Shasta) 2529 Comment
  UC722486  Silene grayi C. L. Hitchcock, J. S. Martin 1939-7-9 5320 Siskiyou between King's Castle and Black Mt. (w side of ridge); btw King's Castle and Black Mt. 1828 Comment
  UC852865  Silene grayi Alice Eastwood 1912-9-1 2066 Siskiyou Mount Shasta Comment
  HSC64678  Silene lemmonii J. O. Sawyer 1977-7-6 3037 Siskiyou Trail to Sugar Lake 2 mi. below lake 1707 Comment
  CAS-BOT-BC389424  Silene lemmonii A. A. Heller 1905-6-15 8036 Siskiyou On the first ridge west of and near Sisson Comment
  CAS-BOT-BC75153  Sisymbrium altissimum A. A. Heller 1916-7-21 12480 Siskiyou Near Upton. 1097 Comment
  CAS-BOT-BC75162  Sisymbrium altissimum Wm. Bridge Cooke 1938-8-19 11525 Siskiyou Mount Shasta. Lower Bear Spring. 1524 Comment
  UC429235  Sisyrinchium bellum unknown April 1903 Siskiyou Yreka; Mount Mooney Comment
  RSA145154  Sisyrinchium elmeri Dorothy Parker 1959-6-15 723 Siskiyou Near summit of Scott Mountain 1631 Comment
  UC1034583  Smilacina racemosa Douglas Barbe 1955-7-4 91 Siskiyou 1000 ft from Parrot Creek (11 mi s of Etna, s bank of creek); North Fork of French Creek 975 Comment
  RSA96931  Smilax californica Percy C. Everett, E. K. Balls 1954-10-12 20273 Siskiyou Along Beaver Creek, N of Walker, 4.8 mi S from Beaver Creek Forest Service. 335 Comment
  JEPS117251  Solanum dulcamara Lowell Ahart, John Dittes 2010-7-30 16939 Siskiyou Along the south edge of the Shasta River, about 100 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
  HSC664  Solanum parishii William J. Ferlatte 1967-7-9 680 Siskiyou Kidd Creek Trail 1768 Comment
  JEPS12118  Solanum rostratum W. L. Kleaver 1921-7-30 Siskiyou Yreka Comment
  RSA211503  Solidago canadensis subsp. elongata William J. Ferlatte 1966-8-18 415 Siskiyou Along the South Fork of the Salmon River between the campground and Carter's. 1524 Comment
  RSA298136  Solidago canadensis subsp. elongata J. P. Smith, J. O. Sawyer 1971-9-17 4781 Siskiyou At Little Duck Lake Comment
  CAS-BOT-BC365578  Solidago elongata Copeland 1903-8-12 3823 Siskiyou Sisson Comment
  UC618666  Solidago elongata W. Bridge Cooke 1938-8-19 11510 Siskiyou Howard 1219 Comment
  CHSC34498  Solidago multiradiata J. D. Jokerst 1981-9-8 1461 Siskiyou Along road side. E of road. 1249 Comment
  HSC62028  Solidago multiradiata Al Hobart 5 Aug [year missing] Siskiyou Preston Peak Comment
  HSC2233  Solidago velutina subsp. californica Geo. D. Butler 1910-7-30 1800 Siskiyou Yreka Creek Comment
  CAS-BOT-BC365248  Solidago velutina subsp. californica Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Roger's Creek, Somes Bar Comment
  RSA170318  Sonchus arvensis subsp. uliginosus T. C. Fuller 1963-8-27 11162 Siskiyou S side of Dorris Tulelake Road where the roadbed forms the N shore of lower Klamath Lake, lower Klamath Lake Wildlife Refuge, 12 miles W of Hatfield. Comment
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  CDA7670  Sonchus oleraceus T. C. Fuller 1959-10-14 3271 Siskiyou Big Springs Park, Mt. Shasta City. 0 Comment
  HSC77002  Sorbus californica K. T. Stillman 1976-6-25 86 Siskiyou Marble Mtn. Wilderness Area, N side of Elk Valley. 1799 Comment
  JEPS95134  Sorbus californica Vernon Oswald and Lowell Ahart 1997-7-28 8794 Siskiyou s.e. Medicine Lake (at Paynes Springs, on walls of Paynes Creek Canyon n. of the campground); Paynes Springs 1981 Comment
  RSA237839  Sorbus californica Frederick W. Oettinger 1968-9-8 789 Siskiyou Outlet of English Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1799 Comment
  RSA300519  Sorbus californica John Dourley, Walter Wisura 1982-10-16 3876 Siskiyou Castle Lake. SW of the town of Mt. Shasta. 1646 Comment
  CAS-BOT-BC158925  Sorbus scopulina Louis C. Wheeler 1934-8-8 3068 Siskiyou West Fork Beaver Creek - Siskiyou Mts. 1676 Comment
  POM366679  Sorbus scopulina var. cascadensis M. B. Dunkle 1944-7-8 9083 Siskiyou Deer Creek. 1890 Comment
  UC1198763  Sorbus scopulina var. cascadensis Joseph P. Tracy 1935-8-1 14404 Siskiyou Rock Lake New River (between Salmon and; at extreme W. Fork of Knownothing Creek); Rock Lake, Knownothing Creek 1889 Comment
  JEPS83883  Spiraea densiflora Wayne Roderick July 1976 Siskiyou vicinity Cook and Green Pass (along trail to Lily Lake); Siskiyou Mts., vicinity of Cook and Green Pass, Lily Lake 1706 Comment
  SDSU9260  Spiraea densiflora D. F. Howe 1977-7-1 4973 Siskiyou Mountain Creek on Scott River Road. 1463 Comment
  POM148451  Spiraea densiflora var. splendens J. B. Feudge 1927-7-22 1684 Siskiyou Trail. Mt. Shasta City to Mt. Eddy. 1372 Comment
  SEINET3157632  Spiraea discolor G. D. Butler 1910-7-6 1645 Siskiyou Shackleford Creek 914 Comment
  RSA105380  Spiraea douglasii G. D. Barbe 1955-7-5 102 Siskiyou 2.5 miles N of Etna on the road to Greenview. 884 Comment
  UC164138  Stachys ajugoides var. rigida Geo. D. Butler 1909-6-29 174 Siskiyou near Yreka Comment
  UC528039  Stellaria longipes var. longipes Elmer I. Applegate 1923-8-18 3886 Siskiyou Medicine Lake Comment
  UC165935  Stellaria media Geo. D. Butler 1909-3-19 559 Siskiyou near Yreka Comment
  UCD139813  Stenanthium occidentale G. L. Clifton 1975-7-29 6042 Siskiyou near Copper Butte and Seiad Valley. 1328 Comment
  UC34305  Stephanomeria lactucina W. C. Blasdale 1894-7-2 Siskiyou Sisson Comment
  UCD78020  Stephanomeria lactucina Robert E. Preston 2001-8-26 1768 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, 2072 Comment
  HSC6237  Stephanomeria paniculata R. C. Wunner 1965-8-21 458 Siskiyou California Lava Beds National Monument; 1 1/2 mi. from NW Ranger Residence along Main Rd. 1220 Comment
  CAS-BOT-BC375941  Stephanomeria virgata Geo. D. Butler 1910-8-7 1814 Siskiyou Humbug Mountain 1066 Comment
  SEINET10603810  Stipa californica A. Arthur Heller 1905-6-1 Heller 7936 Siskiyou Between Upper Soda Spring and Shasta Retreat. Comment
  HSC64360  Stipa thurberiana Don Bateman 1980-5-20 Siskiyou 12 mi. E of Mt. Hebron 1415 Comment
  CAS-BOT-BC61132  Streptanthus barbatus W. R. Dudley 1905-8-4 s.n. Siskiyou Trail to Mount Eddy. Comment
  CAS-BOT-BC87858  Streptanthus tortuosus Marion Ownbey; Fred G. Meyer 1940-7-3 2162 Siskiyou 5 miles northwest of McCloud. Comment
  POM143368  Streptanthus tortuosus George B. Grant 1902-9-7 5721 Siskiyou Mt. Shasta 2439 Comment
  POM143648  Streptanthus tortuosus E. B. Copeland 1903-8-15 3915 Siskiyou Mt. Shasta 2348 Comment
  POM266084  Streptanthus tortuosus C. L. Hitchcock, J. P. Martin 1939-7-7 5281 Siskiyou On side of Sanger Pk. 1646 Comment
  UC648312  Streptanthus tortuosus John Thomas Howell 1939-8-2 14891 Siskiyou Spirit Lake Marble Mts. 1828 Comment
  HSC99988  Streptanthus tortuosus var. oblongus Thomas W. Nelson 2005-7-16 9376 Siskiyou Along Etna-Forks of Salmon Rd., 1.5 mi. from Forks of the Salmon. 399 Comment
  CAS-BOT-BC516433  Streptopus amplexifolius Doris K. Kildale 1928-8-18 6481 Siskiyou Near head of north fork of Salmon River at Finley's upper Camp Comment
  UCD78031  Streptopus amplexifolius var. americanus Robert E. Preston 2001-8-26 1755 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake. 1767 Comment
  HSC60776  Suksdorfia ranunculifolia Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  UC1190180  Suksdorfia ranunculifolia Ira L. Wiggins 1955-7-27 13546 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  JEPS105228  Swertia albicaulis var. albicaulis Dean W. Taylor 1995-6-25 15115 Siskiyou Highway 3 at Soap Creek Summit (ca. 6 miles West of Yreka) 1280 Comment
  CAS-BOT-BC269612  Symphoricarpos albus var. laevigatus L. R. Short 1933-6-15 37 Siskiyou Klamath National Forest. Clear Ck. 640 Comment
  CAS-BOT-BC234778  Symphoricarpos mollis Carl B. Wolf 1927-8-27 1113 Siskiyou On the Klamath River, Happy Camp Comment
  CAS-BOT-BC234794  Symphoricarpos mollis Alice Eastwood 1917-9-2 6672 Siskiyou Shasta Springs Comment
  HSC18989  Symphoricarpos mollis J. O. Sawyer 1969-8-5 1968 Siskiyou Along Sugar Creek. 1707 Comment
  HSC27962  Symphoricarpos mollis Carl W. Mize 1972-9-23 122 Siskiyou 610 Comment
  JEPS22081  Symphyotrichum bracteolatum Willis L. Jepson 1894-7-24 Siskiyou Shasta Springs Upper Sacramento Comment
  CAS-BOT-BC97891  Symphyotrichum eatonii Alice Eastwood 1912-8-28 1954 Siskiyou Cantara, Sisson Comment
  CAS-BOT-BC98442  Symphyotrichum spathulatum E. B. Copeland 1903-9-8 3856 Siskiyou Mt. Eddy Comment
  CAS-BOT-BC98445  Symphyotrichum spathulatum Alice Eastwood 1921-7-25 10844 Siskiyou Bigelows, McCloud River Comment
  UC223701  Symphyotrichum spathulatum Elmer I. Applegate 1923-8-19 3896 Siskiyou Medicine Lake Comment
  CAS-BOT-BC98428  Symphyotrichum spathulatum W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Comment
  SEINET8409249  Symphyotrichum spathulatum Geraldine Allen Guppy 1978-8-23 555 Siskiyou near Panther Meadows campground in Mt. Shasta. 2100 Comment
  HSC26764  Symphyotrichum spathulatum var. spathulatum J. P. Smith, J. O. Sawyer 1971-9-18 4842 Siskiyou 2 mi. W of the junction of Hwy. 3 and Rd. 8, N of Callahan. 1037 Comment
  OBI77861  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
  JEPS86149  Synthyris reniformis Wayne Roderick 1965-1 Siskiyou Cook & Green Pass area Cook & Green Pass 1524 Comment
  HSC68398  Taxus brevifolia Maralyn A. Renner 1980-7-4 1451 Siskiyou Clear Creek Trail, N of Trout Camp. 1037 Comment
  UC637045  Taxus brevifolia Edward Lee 1934-8-11 1039 Siskiyou e end Seiad Valley (Walker Creek, a tributary of the Klamath River); , Klamath River, Walker Creek 609 Comment
  UC165954  Thalictrum fendleri Geo. D. Butler 1908-8-9 359 Siskiyou near Shackelford divide; Wooly Creek Comment
  UC563967  Thelypodium flexuosum Elmer I. Applegate 1935-6-2 9286 a Siskiyou near n boundary Lava Beds National Boundary (Frenner's ranch) Comment
  UC909331  Thelypodium flexuosum Dorothy Parker 1948-6-22 26 Siskiyou shoreline of lower Klamath Lake Klamath Lake 1280 Comment
  UC62776  Thelypteris nevadensis unknown 1883-1 Siskiyou Castle Lake Castle Lake Comment
  SEINET12156919  Thermopsis macrophylla J. P. Tracy 1950-1 19213 Siskiyou 5 mi SE of Flint Valley along the road to Prospect Hill Comment
  CDA25267  Thysanocarpus curvipes F. D. Horn 1978-4-9 Siskiyou Horn Ranch near Etna. 0 Comment
  RSA0049974  Thysanocarpus radians George D. Butler 1910-3-27 1146 Siskiyou Near Yreka. Comment
  RSA378166  Tofieldia glutinosa subsp. occidentalis M. B. Dunkle 1945-7-24 9251 Siskiyou Klamath National Forest, Marble Mountains; Dad s Pocket Comment
  JEPS84231  Trautvetteria caroliniensis var. occidentalis L. R. Heckard with J. Hickman et al. 1986-7-17 6524 Siskiyou e Condrey Mt.; Alex Hole region 1980 Comment
  UC160925  Trautvetteria caroliniensis var. occidentalis Harley P. Chandler June, 1901 1601 Siskiyou near Marble Mountain (North Coast Ranges); North Coast Ranges 1828 Comment
  CHSC30093  Triantha occidentalis subsp. occidentalis M. S. Taylor 1980-7-22 3173 Siskiyou Ca. 0.1 mi sw of Big Carmen Lake, on s side of 40N08, ca. 2.3 mi ne of its jct with Hwy 3 at Scott Mt. Summitt. 1737 Comment
  UC163995  Trichostema lanceolatum Geo. D. Butler 1910-7-28 1793 Siskiyou near Yreka Comment
  CDA39670  Trientalis latifolia F. D. Horn 1977-6-8 s.n. Siskiyou North of Weed on old Highway 99. 0 Comment
  POM76576  Trientalis latifolia Geo. D. Butler 1910-5-23 1392 Siskiyou Humbug Mtn. 1220 Comment
  SEINET8565491  Trientalis latifolia G. D. Butler 1910-5-23 1392 Siskiyou Humbug Mountain. 1219 Comment
  JEPS48899  Trifolium eriocephalum var. eriocephalum Geo. D. Butler 1909-6-22 918 Siskiyou Goosenest Mtn Comment
  RSA183650  Trifolium hybridum Gilbert Muth 1965-8-16 228 Siskiyou Marble Valley Comment
  UC163982  Trifolium kingii var. productum Geo. D. Butler 1910-7-9 1721 Siskiyou Marble Mtn 1828 Comment
  HSC60773  Trifolium longipes Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley Comment
  HSC78211  Trifolium longipes L. P. Janeway 1983-7-10 400 Siskiyou Poker Flat 1524 Comment
  HSC81684  Trifolium longipes Thomas W. Nelson, Jane P. Nelson 1980-7-20 6167 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  SBBG3845  Trifolium longipes subsp. oreganum H. and M. Dearing 1939-6-5 3556 Siskiyou E of McCloud 1066 Comment
  HSC92942  Trifolium longipes subsp. shastense Jennifer Whipple 1977-7-20 1993 Siskiyou N slopes of Mount Eddy 2500 Comment
  UC1409230  Trifolium longipes var. hansenii Frederick W. Oettinger 1968-8-17 553 Siskiyou nne Pine Lake (vicinity of English Peak); salmon Mtns, Marble Mtn Wilderness Area 1950 Comment
  UC338051  Trifolium obtusiflorum Lemmon 1889-6-26 Siskiyou Edgewood Comment
  HSC93002  Trifolium productum Jennifer Whipple 1977-8-6 2236 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UC631206  Trifolium repens A. A. Heller 1916-6-20 12414 Siskiyou ne base Mt. Eddy (Metcalf's Ranch) 1188 Comment
  UCD78178  Trifolium retusum Robert E. Preston 2008-5-13 2630 Siskiyou Along Hwy 96, ca. 11.6 miles N of the confl of the Klamath River and Salmon River 229 Comment
  POM20461  Trifolium variegatum E. B. Copeland 1903-7-7 3554 Siskiyou Hornbrook. Comment
  UC163810  Trifolium variegatum var. variegatum Geo. D. Butler 1910-4-27 1245 Siskiyou Oro Fino Comment
  RSA582628  Trifolium variegatum var. variegatum Louis C. Wheeler 1935-6-27 3612 Siskiyou Greenview, Scott Valley. 884 Comment
  POM28037  Trifolium willdenovii Geo. D. Butler 1910-5-8 1313 Siskiyou Near Yreka. Comment
  JEPS48904  Trifolium wormskioldii Geo. D. Butler 1908-7-2 381 Siskiyou near Yreka (Butler's Ranch) Comment
  UC375412  Trifolium wormskioldii Geo. D. Butler 1908-7-2 381 Siskiyou near Yreka Comment
  HSC18872  Trillium ovatum J. O. Sawyer 1968-9-13 723 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  JEPS96991  Trillium ovatum Dean W. Taylor 1999-6-9 17230 Siskiyou Siskiyou Mountains, ca. 5 air miles WSW Hilt, very headwaters of South Fork Hungry Creek 1371 Comment
  CHSC33163  Trillium ovatum subsp. oettingeri Maralyn A. O'Meara 1973-6-24 229 Siskiyou Statute Lake Creek where it is crossed by Music Creek logging road, about 1/4 mile from confluence of Statute Lake Creek and Music Creek. 1828 Comment
  HSC76926  Trillium ovatum subsp. oettingeri William J. Ferlatte 1983-6-28 2101 Siskiyou Tributary to Moosehead Creek, W of Rd. 39N96 1509 Comment
  HSC96418  Trillium ovatum subsp. oettingeri Gordon Leppig, J. Kalt 1996-7-9 381 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  SEINET10506952  Trisetum Mary Susan Taylor 1980-8-18 Taylor 3262 A Siskiyou T43N R1E sw sec 8, Medicine Lake quad. Shasta-Trinity Natl Forest, Little Mount Hoffman, W side, between road and look out. With J. Prouty & E. Heinz. 2225 Comment
  RSA238972  Trisetum canescens Frederick W. Oettinger 1969-8-3 1151 Siskiyou Halfway spring. trail English Lake to Diamond Lake; Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  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
  UCD93669  Trisetum spicatum Beecher Crampton 1956-8-22 3854 Siskiyou Panther Meadow, south slope of Mt. Shasta. 2316 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
  POM109794  Triteleia crocea var. crocea Geo D. Butler 1909-5-30 786 Siskiyou Humbug Mountain. 1220 Comment
  UC454400  Triteleia hyacinthina I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  SEINET8398509  Triteleia ixioides Frank Callahan 1990-7-4 Siskiyou south slope of Mt. Shasta, growing in dry fringes of Wagon Camp Meadows. 1762 Comment
  CAS-BOT-BC524312  Triteleia ixioides subsp. anilina R. F. Hoover 1940-6-6 15083 Siskiyou Along Castle Lake road 1219 Comment
  UC915712  Tsuga mertensiana W. L. Jepson July 1907 Siskiyou Marble Mountain; w Siskiyou Co. Comment
  SBBG39108  Tsuga mertensiana W. M. Plumb 1969-2-22 Siskiyou just under Pk of China Mtn Scott Bar Mtns 2438 Comment
  CAS-BOT-BC80253  Tsuga mertensiana subsp. grandicona Louis C. Wheeler 1934-9-1 3237 Siskiyou Klamath Forest, Mud Springs 1889 Comment
  CAS-BOT-BC80254  Tsuga mertensiana subsp. grandicona Louis C. Wheeler 1934-9-1 3237 Siskiyou Mud Springs, Middlehell Creek 1889 Comment
  CAS-BOT-BC74099  Turritis glabra Wm. Bridge Cooke 1938-7-15 11200 Siskiyou Mount Shasta. Bear Springs. Between the Bear Springs creeks. 1524 Comment
  HSC67617  Typha latifolia J. P. Smith, Steve Selva 1970-8-7 4540 Siskiyou Jct. I-5 and Stewart Creek Rd. Comment
  CHSC105281  Urtica dioica subsp. gracilis Lowell Ahart; John Dittes 2010-7-30 16961 Siskiyou On the south bank of the Shasta River, about 1 yard 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-BC199187  Vaccinium cespitosum A. A. Heller 1915-7-15 12087 Siskiyou Mt. Eddy 1828 Comment
  HSC22452  Vaccinium cespitosum J. O. Sawyer 1969-8-1 1595 Siskiyou Above Horseshoe Lake 1921 Comment
  JEPS58715  Vaccinium cespitosum Harley P. Chandler Jun 1901 1578 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  JEPS58731  Vaccinium cespitosum W. L. Jepson 1907-7-6 2851 Siskiyou near Cuddihy Valley Comment
  RSA760540  Vaccinium cespitosum R. F. Thorne, Frederick W. Oettinger 1969-8-4 63363 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak 2072 Comment
  UC413098  Vaccinium deliciosum Jos. Grinnell 1911-6-22 174 Siskiyou Jackson Lake Comment
  CAS-BOT-BC199229  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  CHSC88999  Vaccinium membranaceum Gail A. Newton 1981-7-29 2337 Siskiyou Klamath National Forest. Near Kelsey Trail. 1639 Comment
  HSC29338  Vaccinium membranaceum Frederick W. Oettinger 1968-9-5 721 Siskiyou Marble Mountain Wilderness Area, near inlet stream to Hancock Lake 1936 Comment
  RSA238859  Vaccinium membranaceum Frederick W. Oettinger 1969-7-14 1013 a Siskiyou Common around Charmaine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SEINET11971724  Vaccinium membranaceum H. P. Chandler 1901-1 1577 Siskiyou near Marble Mountain 2134 Comment
  HSC23552  Vaccinium parvifolium J. O. Sawyer 1970-7-3 2313 Siskiyou W of Camp 3 Comment
  UC195254  Valeriana sitchensis subsp. sitchensis Annie M. Alexander and Louise Kellogg 1911-6-18 158 Siskiyou Jackson Lake 1798 Comment
  HSC30490  Vancouveria hexandra Frederick W. Oettinger 1969-8-25 1552 Siskiyou Salmon Mts., Little N Fork Stream crossing along trail from the end of logging road to the Devil's Canyon trail 1220 Comment
  UC164388  Veratrum insolitum Geo. D. Butler 1908-8-9 535 Siskiyou Marble Valley Comment
  HSC30440  Veratrum viride Frederick W. Oettinger 1968-8-1 346 Siskiyou Marble Mtn. Wilderness Area, S of Hancock Lake 2043 Comment
  UC455538  Verbascum blattaria I. J. Condit 1911-7-7 Siskiyou Shasta Retreat Comment
  RSA123556  Verbascum blattaria G. D. Barbe 1955-7-7 143 Siskiyou East side of Forest Camp. Etna. 884 Comment
  CHSC8613  Verbascum thapsus G. Smalley 1967-6-17 Siskiyou Collected 6 miles e of Callahan. 1310 Comment