Search Results — 2000 specimen records retrieved (1402 records with coordinates)
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC30656  Abies X shastensis Frederick W. Oettinger 1968-9-8 788 Siskiyou Marble Mtn. Wilderness area, E side of English Lake 1784 Comment
  HSC32568  Abies X shastensis Steven Lagos 1974-5-26 91 Siskiyou Duck Lake Creek drainage 1524 Comment
  HSC41645  Abies X shastensis Robert Wharton 1977-10-9 Siskiyou N slope of Mt. Shasta, Bulk Collection #116 2287 Comment
  HSC29673  Abies concolor Frederick W. Oettinger 1968-9-10 809 Siskiyou Marble Mtn. Wilderness Area, NE of English Lake outlet 1921 Comment
  HSC36939  Abies concolor J. P. Smith 1974-5-26 7561 Siskiyou Along FS Rd. 47N03 1524 Comment
Read comments
Feb 26 2013
  RSA6533  Abies concolor Elmer I. Applegate 1895-5-30 s.n. Siskiyou East lake of Mt. Shasta, near Sissen. Comment
  CAS-BOT-BC330621  Acer circinatum Wm. Bridge Cooke 1940-7-12 15309 Siskiyou Near the Sacramento River in the Box Canyon near Mount Shasta City 914 Comment
  UC1199014  Acer glabrum Joseph P. Tracy 1935-8-1 14403 Siskiyou on ridge between Salmon and New Rivers (Rock Lake, at extreme head of West Fork of Knownothing Creek); Rock Lake, extreme head West Fork Knownothing Creek 1889 Comment
  CAS-BOT-BC331022  Acer glabrum var. glabrum John Thomas Howell 1939-8-5 15069 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  CAS-BOT-BC331050  Acer glabrum var. glabrum R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-2 s.n. Siskiyou Near Kidd Creek Comment
  JEPS42664  Acer macrophyllum Geo. D. Butler 1909-5-31 767 Siskiyou Humbug Comment
  SEINET3142628  Acer macrophyllum G. D. Butler 1910-5-30 1434 Siskiyou Humbrey Cr. Comment
  UC166168  Acer negundo var. interior Geo. D. Butler 1910-5-22 1384 Siskiyou Yreka Creek Comment
  CAS-BOT-BC28857  Achillea millefolium William Bridge Cooke 1939-8-10 13873 Siskiyou In one small area on the west bank of Mud Creek Canyon 2895 Comment
  CAS-BOT-BC30438  Achillea millefolium A. A. Heller 1915-7-18 12127 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  HSC92585  Achillea millefolium Jennifer Whipple 1978-10-6 2404 Siskiyou Primarily N facing slopes in the Eddy Creek drainage. 2317 Comment
  JEPS117459  Achillea millefolium Lowell Ahart, John Dittes 2010-7-30 16954 Siskiyou About 30 yards west of the Shasta River, about 50 yards west of the East Louie Road Bridge, Shasta Big Springs Ranch, 1.6 miles (air) southwest of Big Springs Lake, 4.6 miles (air) northwest of Dwinnel Dam, 5.7 miles (air) southeast of Grenada 716 Comment
  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
  UC415462  Achillea millefolium A. A. Heller 1905-6-19 8067 Siskiyou Grenada Comment
  CAS-BOT-BC18863  Achillea millefolium David D. Keck 1938-8-7 4850 Siskiyou 1 mi. N of Schmitt Mill on road between Gazelle and Callahan, Scott Mtns. 1463 Comment
  CAS-BOT-BC30444  Achillea millefolium D. M. Traugh 1933-5-25 62 Siskiyou Klamath N.F. 609 Comment
  UC1037089  Achnatherum lemmonii Leo Whitney 1934-6-20 2221 Siskiyou near Tennant (Antelope Creek); Antelope Creek 1463 Comment
  JEPS104958  Achnatherum nelsonii subsp. dorei Dean W. Taylor 1996-6-28 15760 Siskiyou Antelope Mountain (about 8 air miles south of Yreka) 1798 Comment
  CHSC83256  Achnatherum occidentale subsp. californicum L. P. Janeway 2002-7-13 7643 Siskiyou High Cascade Range. Along a logging spur road 0.2 km southeast of Road 13 (Pilgrim Creek Road) 9.0 kmk northeast of the Military Pass Road (Road 19); 0.2 km north of Edison Creek. 1347 Comment
  RSA238358  Achnatherum occidentale subsp. californicum Frederick W. Oettinger 1968-9-6 744 -b Siskiyou Tom's Lake region, Edge of Bear Meadow . The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2188 Comment
  SEINET203569  Achnatherum occidentale subsp. californicum W. B. Cooke 1938-7-15 11168 Siskiyou Bear Springs; Mt Shasta 1524 Comment
  UC1025010  Achnatherum occidentale subsp. occidentale Leo Whitney 1935-7-15 3481 Siskiyou 2 mi se Medicine Lake (lava ridge, Bullseye Lake); Bullseye Lake Comment
  RSA716055  Achnatherum thurberianum L. Ahart, John Dittes 2005-6-9 12018 Siskiyou About 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 775 Comment
  CAS-BOT-BC29149  Achyrachaena mollis L. E. Smith 1915-6-1 s.n. Siskiyou Hilt Comment
  CHSC35551  Acmispon americanus var. americanus J. P. Smith; Steve Selva 1970-7-15 4351 Siskiyou Klamath Nat'l. Forest. Road to Happy Camp. 731 Comment
  CHSC86677  Acmispon denticulatus Jenny Marr 1993-7-1 60 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  SBBG3407  Acmispon nevadensis var. nevadensis H. and M. Dearing 1939-6-3 3527 Siskiyou Spring Flat Public Camp, Klamath Nat Forest Comment
  SBBG25949  Aconitum columbianum D. Myrick 1966-8-10 1521 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  UCD95300  Aconitum columbianum Beecher Crampton 1956-8-21 3801 Siskiyou slopes above Gumboot Lake, headwater of the south fork of the Sacramento River. Comment
  CAS-BOT-BC391515  Aconitum columbianum subsp. columbianum Alice Eastwood 1912-7-17 1189 a Siskiyou Sisson Comment
  HSC61850  Aconitum columbianum subsp. columbianum Ruby Van Deventer 1938-7-21 Siskiyou Poker Flat 1768 Comment
  CAS-BOT-BC413844  Aconogonon davisiae Alice Eastwood 1921-7-29 10957 Siskiyou Little Mt. Hoffman Comment
  CAS-BOT-BC418820  Aconogonon phytolaccifolium Gilbert Muth 1966-7-17 406 Siskiyou Trail to Lookout, Marble Mts. 1859 Comment
  CAS-BOT-BC418810  Aconogonon phytolaccifolium H. R. Saxton 1922-7-15 5 Siskiyou Klamath National Forest. Head of Cow Creek 1828 Comment
  HSC61826  Aconogonon phytolaccifolium Ruby Van Deventer 1938-7-29 Siskiyou Poker Flat 1585 Comment
  CAS-BOT-BC29321  Adenocaulon bicolor A. A. Heller 1916-8-24 12558 Siskiyou Near Sisson 1074 Comment
  CAS-BOT-BC29322  Adenocaulon bicolor A. A. Heller 1916-8-24 12558 Siskiyou Near Sisson 1074 Comment
  UC454328  Adenocaulon bicolor I. J. Condit 1911-7-15 Siskiyou Tollroad (Shasta Springs to McCloud) Comment
  UC1483405  Adiantum aleuticum Maralyn A. Renner 1980-6-24 1005 Siskiyou tributary stream to East Fork Seiad Creek (where crossed by FS Rd 48N20); Klamath Nat'l Forest, Seiad Valley Quadrangle 1021 Comment
  CAS-BOT-BC68955  Adiantum aleuticum A. A. Heller 1915-8-26 12235 Siskiyou Mt. Eddy in open swampy places in the forest. 1828 Comment
  CAS-BOT-BC68960  Adiantum aleuticum Edward Lee 1934-8-11 1033 Siskiyou Walker Creek, a tributary of the Klamath River (east end of Seniad Valley) 609 Comment
  CHSC12950  Agastache parvifolia K. R. Stern; D. B. Joley, J. G. Geschke 1974-6-23 5834 Siskiyou Vicinity of Blue Grotto Cave, Lava Beds National Monument. 1456 Comment
  HSC14193  Agastache parvifolia R. C. Wunner 1965-6-30 314 Siskiyou Lava Beds National Monument, entrance of Big Painted Cave 1418 Comment
  JEPS62933  Agastache urticifolia Geo. D. Butler 1908-8-6 171 Siskiyou trail beyond Whiskey Camp Whiskey Camp (Marble Mountains); , Whiskey Camp 1676 Comment
  RSA211330  Agastache urticifolia William J. Ferlatte 1966-8-18 425 Siskiyou Trinity Alps of Northern California, Willow Creek Trail. 1707 Comment
  RSA31957  Agastache urticifolia A. A. Heller 1938-7-13 15263 Siskiyou Among lava rocks at Bray. Comment
  CAS-BOT-BC29459  Ageratina occidentalis Gilbert J. Muth 1965-8-4 s.n. Siskiyou Near the Marble, Marble Valley Comment
  UC75800  Agoseris X dasycarpa Milo S. Baker 1897-8-1 154 Siskiyou top Medicine Lake Mts. 2438 Comment
  CAS-BOT-BC22776  Agoseris heterophylla George Dexter Butler 1910-5-23 1402 Siskiyou Near Yreka Comment
  UC163893  Agoseris heterophylla Geo. D. Butler 1910-4-21 1213 Siskiyou Oro Fino Comment
  JEPS80662  Agrostis alba W. B. and V. G. Cooke 1977-9-20 54806 Siskiyou along dry spring creek Mt. Shasta, Little Bear Springs Comment
  CAS-BOT-BC126985  Agrostis exarata Ira L. Wiggins 1955-7-22 13453 Siskiyou In South Fork of Salmon River, 9.5 miles above Cecilville. 1066 Comment
  HSC69385  Agrostis exarata Maralyn A. Renner 1980-8-31 2668 Siskiyou Poker Flat at trailhead to Twin Valley 1524 Comment
  CAS-BOT-BC139138  Agrostis oregonensis Alice Eastwood 1921-7-25 10834 Siskiyou Bigelows McCloud River. Comment
  CAS-BOT-BC138943  Agrostis pallens Doris K. Kildale 1928-7-25 5914 Siskiyou Klamath River - Mack's Creek near Hamburg. Comment
  HSC30537  Agrostis pallens Frederick W. Oettinger 1969-8-19 1456 Siskiyou Marble Mtn. Wilderness Area, S of big bare area between King David's and Abbot's Basin 1905 Comment
  HSC30559  Agrostis pallens Frederick W. Oettinger 1968-9-3 681 Siskiyou Marble Mtn. Wilderness Area, slope west of Horse Range Lake 1905 Comment
  RSA239062  Agrostis pallens Frederick W. Oettinger 1968-9-3 681 Siskiyou West of Horse Range Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  UC1265419  Agrostis pallens Frederick W. Oettinger 1969-9-3 1623 Siskiyou along trail to Tom Taylor Cabin before it enters the woods Tom Taylor Cabin; Salmon Mountains, Marble Mountain Wilderness Area, Crapo Mea 2072 Comment
  RSA238993  Agrostis scabra Frederick W. Oettinger 1968-9-7 751 Siskiyou Lake shore at north end of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  SEINET3917201  Agrostis stolonifera J. P. Smith, Steve Selva 1970-8-8 4554 Siskiyou Juanita Lake.; 0 Comment
  UCD53604  Agrostis stolonifera Beecher Crampton 1956-8-22 3868 Siskiyou Wagon Camp Road, about 5.5 miles SW of Panther Meadow, lower south slopes of Mt. Shasta. 1645 Comment
  HSC30598  Agrostis thurberiana Frederick W. Oettinger 1968-9-5 713 Siskiyou Marble Mtn. Wilderness Area, English Lake Basin, Base Camp meadow. 1936 Comment
  SEINET8112105  Allium amplectens G. D. Butler 1910-5-17 1358 Siskiyou Yreka. Comment
  UC375194  Allium bolanderi Geo. D. Butler 1909-3-21 663 Siskiyou dry hills near Oro Fino Comment
  RSA550217  Allium bolanderi var. mirabile D. W. McNeal 1992-5-16 3910 Siskiyou Sandy soil layer over a conglomerate substrate on a steep slope above the dirt road running NW from Hilt, 4.8 miles NW of Interstate 5 at the Hilt exit. Comment
  JEPS84947  Allium falcifolium Barbara Ertter with Thomas J. Delendick 1987-5-17 6968 Siskiyou Summit Scott Mt. (1/2 mi e. of Rt. 3 on FR 40N08) 1706 Comment
  RSA48580  Allium falcifolium Philip A. Munz 1949-5-18 13304 Siskiyou Divide, south of Callahan on road to Trinity Center. 1524 Comment
  UC618662  Allium obtusum W. Bridge Cooke 1938-7-1 11163 Siskiyou 1 mi below main meadow; Mount Shasta, Panther Creek Sand Flats Comment
  HSC22206  Allium parvum J. O. Sawyer 1969-6-13 1101 Siskiyou Slope above Little Duck Lake 2134 Comment
  RSA60650  Allium parvum Dorothy Parker 1946-4-11 122 Siskiyou Plowman s Valley. 1189 Comment
  CAS-BOT-BC132146  Allium siskiyouense Harley P. Chandler 1901-6-1 1647 Siskiyou Marble Mountain 2438 Comment
  CAS-BOT-BC132149  Allium siskiyouense C. L. Hitchcock; J. S. Martin 1939-7-9 5319 Siskiyou Between King's Castle and Black Mts., west side of ridge 1828 Comment
  SEINET12048092  Allium siskiyouense Unknown 1945-1 59 Siskiyou summit of Siskiyou Mts, between Happy Camp and O'Brien, Oregon Comment
  HSC17947  Allotropa virgata H. P. Chandler Jun 1901 1546 Siskiyou Near Marble Mountain 2134 Comment
  RSA13913  Alnus incana subsp. tenuifolia L. C. Wheeler 1934-9-2 3241 Siskiyou Miller Glade, Siskiyou Mts. 1829 Comment
  UC164051  Alnus incana subsp. tenuifolia Geo. D. Butler 1910-5-10 1316 Siskiyou Goosenest foothills; border of streams 1524 Comment
  UC375244  Alnus rhombifolia Geo. D. Butler 1908-7-4 10 Siskiyou Shasta River Comment
  UCD110047  Alnus viridis subsp. sinuata Jack Major 1961-7-14 649 Siskiyou South wall of Mud Creek, Mount Shasta. 2316 Comment
  CAS-BOT-BC138101  Alopecurus aequalis var. aequalis Louis C. Wheeler 1934-6-26 2795 Siskiyou Klamath Forest. Cottonwood Creek. 838 Comment
  CAS-BOT-BC138103  Alopecurus aequalis var. aequalis Geo. D. Butler 1910-8-13 1837 1/2 Siskiyou Oro Fino Creek. Comment
  CHSC38086  Alyssum alyssoides R. E. Preston; L. E. Preston 1983-6-9 391 Siskiyou Grass Lake Rest Area. 1542 Comment
  UC375334  Alyssum alyssoides Geo. D. Butler 1910-5-7 1304 Siskiyou Yreka Comment
  HSC22281  Amelanchier alnifolia var. semiintegrifolia J. O. Sawyer 1969-7-3 1046 Siskiyou Above Lipstick Lake 1951 Comment
  JEPS123503  Amelanchier alnifolia var. semiintegrifolia E. T. Doucette 2013-5-17 13 -113 Siskiyou McCloud River loop road Comment
  NY418532  Amelanchier gracilis A. A. Heller 1905-6-5 7970 Siskiyou Between Shasta Retreat and Shasta Springs. Comment
  CDA25701  Amelanchier pallida T. C. Fuller 1962-6-13 8976 Siskiyou Highway 89 to McCloud 1.2 miles west of Bartle. 0 Comment
  JEPS126019  Amelanchier pallida E. T. Doucette 2013-5-20 13 -132 Siskiyou Greenhorn Road, Yreka, 8.7 miles from business district. Comment
  CAS-BOT-BC136898  Amelanchier utahensis Ellsworth Bethel 1923-5-20 s.n. Siskiyou McCloud Comment
  UC1540021  Amelanchier utahensis M. Mitchell 1936-5-14 18 Siskiyou Captain Jack's Stronghold 1249 Comment
  UC166492  Amelanchier utahensis Geo. D. Butler 1908-5-30 493 Siskiyou Humbug Mountain Comment
  UC555443  Amelanchier utahensis Dorothy Tebbe 1929-6-5 126 Siskiyou Mt. Eddy Comment
  SEINET10898751  Amelanchier utahensis Katherine L. Morris 1973-5-25 Morris 268 Siskiyou 20.7 miles e of mccloud on hwy 89 in an area of libocedrus, yellow pine, white Fir, and mixed conifers Comment
  CHSC7144  Amsinckia intermedia Gregory Barnes 1969-4-2 3 Siskiyou Beaver Creek Campground. Siskiyou Mountains. Comment
  HSC36782  Amsinckia intermedia J. P. Smith 1974-5-27 7624 Siskiyou Along FS Rd. 47N03 1280 Comment
  CAS-BOT-BC45212  Anaphalis margaritacea A. A. Heller 1914-8-28 11734 Siskiyou East side of Mount Eddy 2103 Comment
  UC1409447  Anaphalis margaritacea Frederick W. Oettinger 1969-8-15 1382 Siskiyou Upper English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1775 Comment
  UC179644  Anaphalis margaritacea A. A. Heller 1914-8-28 11734 Siskiyou Mt. Eddy 2133 Comment
  RSA696900  Anaphalis margaritacea Leo Miller s.n. Siskiyou Siskiyou Mts. 854 Comment
  CAS-BOT-BC391801  Anemone deltoidea Doris K. Kildale 1928-7-2 5393 Siskiyou Salmon Summit via Horn Creek trail 1981 Comment
  HSC4934  Anemone deltoidea J. O. Sawyer 1968-9-13 719 Siskiyou W of the Happy Camp/O'Brien Rd. between Louse Creek and Indian Creek, on the E slopes of Little Grayback 1463 Comment
  HSC99847  Anemone deltoidea G. L. Clifton 1979-7-1 6179 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  SBBG15606  Anemone deltoidea D. Myrick 1961-6-21 306 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  HSC45488  Anemone deltoidea Maralyn O'Meara 1973-6-25 241 Siskiyou Tributary stream to N Russian Creek, 0.5 mi. S from Etna Summit on road from Sawyer's Bar to Etna 1524 Comment
  UC130648  Anemone deltoidea H. M. Hall Jul 1909 8675 Siskiyou Salmon Mtns , Salmon River (Salmon River) 1584 Comment
  UC723023  Anemone drummondii C. L. Hitchcock and J. S. Martin 1930-7-9 5315 Siskiyou n. side of Black Mt. near Marble Mt.; Black Mt. 2072 Comment
  UC853533  Anemone drummondii Alice Eastwood 1912-8-30 1964 Siskiyou Mt. Eddy Comment
  UC8901  Anemone multifida Harley P. Chandler 1901-6-1 1657 Siskiyou North Coast Ranges, Marble Mountain Marble Mountain; North Coast Ranges, Marble Mountain 2438 Comment
  RSA215648  Anemone occidentalis Gilbert Muth 1969-8-7 1227 Siskiyou damp shaded area on east side of Boulder Peak Ridge in Subalpine Forest. 2470 Comment
  UC8953  Anemone oregana Harley P. Chandler Jun 1901 1551 Siskiyou ridges and meadows near Marble Mtn; North Coast Ranges 1828 Comment
  JEPS109874  Anemone oregana var. oregana Dean W. Taylor 2005-7-12 19385 Siskiyou Antelope Creek; along unnamed tributary that drains from Rainbow Mountain, just upstream from the crossing of Forest Road 42N16 1697 Comment
  UCD127120  Angelica R. Tofsrud 1948-8-1 s.n. Siskiyou Siskiyou-Del Norte (Oregon) County Line: Oregon Border. 1524 Comment
  JEPS16076  Angelica arguta Geo. D. Butler 1908-8-3 465 Siskiyou Log Lake, Shackleford Creek hackleford Creek; Log Lake, Shackleford Creek Comment
  UC1400366  Angelica arguta Frederick W. Oettinger 1968-8-14 514 Siskiyou 0.1 mi e of Tom Taylor Cabin (High Lake Basins in vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area); Salmon Mountains, Marble Mountain Wilderness Area 2011 Comment
  JEPS19765  Angelica tomentosa Rimo Bacigalupi with S. Galen Smith 1957-6-26 5941 Siskiyou about 11 mi sw of town of Mount Shasta (between White Ridge and Scott Camp Ridge, along road to Gumboot Lake, in Canyon of South Fork Sacramento River); South Fork Sacramento River 1219 Comment
  HSC34298  Angelica tomentosa J. P. Smith, J. O. Sawyer 1973-8-14 7292 Siskiyou W shore of Campbell Lake 1768 Comment
  UC2016517  Anisocarpus madioides Richard Olmstead 1983-7-12 470 Siskiyou Along the Little North Fork of Salmon River ca. 1 mile from trailhead on Little North Fork trail on ridge to the west of the creek. Comment
  UC585071  Antennaria argentea E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1889 Siskiyou about 2 mi s Yreka 822 Comment
  UC725677  Antennaria argentea A. A. Heller 1919-7-20 12475 Siskiyou Near Wagon Creek Falls, east side of Mt. Eddy. 1371 Comment
  UCD77338  Antennaria howellii subsp. howellii Robert E. Preston 2002-7-14 1930 Siskiyou Klamath National Forest, N slope of Rainbow Mountain 1850 Comment
  HSC92332  Antennaria media Jennifer Whipple 1978-10-6 2397 Siskiyou Mt. Eddy, N-facing slopes in the Eddy Creek Drainage 2317 Comment
  HSC25417  Antennaria racemosa J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5662 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  SFV5166  Antennaria rosea B. C. Templeton 1960-6-21 8550 Siskiyou Klamath Mountains Near the top of Scott Mountain. On mountain slopes. 1645 Comment
  UC75910  Antennaria rosea Milo S. Baker 1892-8-1 156 Siskiyou Medicine Lake Comment
  HSC4638  Antennaria rosea subsp. rosea R. C. Wunner 1965-6-10 135 Siskiyou California Lava Beds National Monument; Caldwell Butte near Summit 1524 Comment
  RSA240060  Antennaria umbrinella Frederick W. Oettinger 1969-8-22 1485 Siskiyou Pierce's Draw. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  SEINET3158979  Antirrhinum vexillo-calyculatum subsp. breweri G. D. Butler 1910-6-17 1569 Siskiyou Humbug Mountain 1067 Comment
  JEPS25848  Antirrhinum vexillocalyculatum subsp. breweri Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7474 Siskiyou 3 mi ne Calif. Hwy 96, Swillup Creek crossing (Calif Hwy 96, opposite King Creek in Klamath River Canyon); Klamath River Canyon 334 Comment
  UC164277  Antirrhinum vexillocalyculatum subsp. breweri Geo. D. Butler 1908-8-30 2 Siskiyou near Fort Jones Comment
  CHSC91247  Apera interrupta Lowell Ahart; John Dittes 2005-6-9 12053 Siskiyou Meadow area along a small drainage, along the sides 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
  HSC3206  Apocynum androsaemifolium Geo. D. Butler 1908-8-24 73 Siskiyou Russian Creek 1067 Comment
  JEPS49801  Apocynum androsaemifolium Geo. D. Butler 1908-8-9 77 Siskiyou Woolly Creek, Cold Spring 1676 Comment
  UC164094  Apocynum cannabinum Geo. D. Butler 1908-8-1 76 Siskiyou on Forest House rd. Comment
  UC1409275  Aquilegia formosa Frederick W. Oettinger 1968-8-6 422 Siskiyou se corner of Hancock Lake Salmon Mtns, Marble Mt. Wilderness Area 1935 Comment
  UCD95553  Aquilegia formosa J. P. Smith; Steve Selva 1970-6-15 3975 Siskiyou 1 mile west junction Calif. 3 and Road 8 leading to Sugar Creek. 1158 Comment
  HSC29175  Arabis holboellii var. retrofracta Frederick W. Oettinger 1969-7-10 961 Siskiyou Marble Mtn. Wilderness Area, SW of Upper English Lake 1921 Comment
  UC1181804  Arabis modesta Dorothy Parker 1950-4-7 386 Siskiyou near Walker (bluffs above Klamath River); Siskiyou Mountains 533 Comment
  CAS-BOT-BC17367  Arabis oregana Lincoln Constance; Reed Clark Rollins 1942-5-13 2915 Siskiyou Scott River 10 miles southwest of Scott Bar. 609 Comment
  HSC66246  Arabis oregana Maralyn A. Renner 1980-7-28 2151 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  HSC92698  Arabis oregana J. P. Smith 1973-5-5 6497 Siskiyou Along Cook and Green Pass Rd. Comment
  JEPS84109  Arabis oregana L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6415 Siskiyou ca 5 mi n Seiad Valley town (cirque at head of Hell's Canyon, e slope of Kangaroo Mountain); Kangaroo Mountain 1828 Comment
  POM144225  Arabis platysperma var. howellii M. S. Baker 1898-8-7 484 Siskiyou Medicine Lake. Comment
  HSC67832  Arabis sparsiflora J. O. Sawyer, J. Cole 1980-7-22 3826 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  UC1333315  Arabis sparsiflora var. atrorubens Dorothy Parker 1949-5-8 282 Siskiyou Kidder Creek Salmon Mountains Range 914 Comment
  HSC68419  Arabis subpinnatifida Maralyn A. Renner 1980-6-9 854 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  CDA40892  Aralia californica G. F. Hrusa 1998-7-5 14692 Siskiyou Siskiyou Mountains; Cedar Camp Rd. +- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy., at mile 5.x. Sheet 2 of 2 Comment
  JEPS40140  Arceuthobium campylopodum Milo S. Baker 1923-8-17 303 Siskiyou near Camp 6 Siskiyou Ntional Forest Comment
  SEINET2471355  Arceuthobium tsugense subsp. mertensianae R. L. Mathiasen 2007-9-20 2007 -53 Siskiyou 1 km SE. of trail to Duck Lake on trail to Eaton Lake, Russian Peak Wilderness 1730 Comment
  CDA6782  Arctium minus Bill Huse 1958-9-6 1214 -58 Siskiyou Meiss Ranch, Macdoel. 0 Comment
  RSA0044721  Arctium minus L. C. Wheeler 1934-9-17 3276 Siskiyou Siskiyou Mts: Dutch Creek off Klamath River. 701 Comment
  CAS-BOT-BC39978  Arctostaphylos nevadensis W. R. Dudley 1893-6-20 s.n. Siskiyou Near Castle Lake by Mt. Shasta. Comment
  HSC69014  Arctostaphylos nevadensis Maralyn A. Renner 1980-7-24 2027 Siskiyou Lily Pad Lake 1768 Comment
  UC166196  Arctostaphylos nevadensis Geo. D. Butler 1908-8-4 101 Siskiyou head Shackleford Creek Comment
  UC83022  Arctostaphylos nevadensis Dr. E. B. Copeland 1903-7-14 3520 Siskiyou Klamathon Comment
  SBBG5452  Arctostaphylos nevadensis subsp. nevadensis H. and M. Dearing 1939-7-2 3800 Siskiyou Etna-Salmon Divide 1828 Comment
  CAS-BOT-BC46427  Arctostaphylos patula Alice Eastwood 1921-7-28 10891 Siskiyou Little Mt. Hoffman. Comment
  CAS-BOT-BC46453  Arctostaphylos patula C. Hart Merriam 1919-10-18 s.n. Siskiyou Baird Fish Hatchery, McCloud River. Comment
  CAS-BOT-BC46466  Arctostaphylos patula L. E. Smith 1913-4-10 69 Siskiyou Near Sisson. Comment
  CAS-BOT-BC46494  Arctostaphylos patula John Thomas Howell 1937-7-23 13370 Siskiyou South Fork of the Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC46495  Arctostaphylos patula Wayne Roderick; Jacob Sigg 1981-8-22 s.n. Siskiyou At Little Grayback between O'Brien and Happy Camp. 1371 Comment
  CAS-BOT-BC46512  Arctostaphylos patula N. Hollister 91 Siskiyou Prestons Peak. 1524 Comment
  RSA15478  Arctostaphylos patula H. P. Bracelin 1936-4-15 830 Siskiyou N.E. slope of Mt. Eddy; 3 miles above Metcalf ranch house, 6 miles N.W. of Mt. Shasta City. 1341 Comment
  SEINET2029610 Image available Arctostaphylos patula Reed C. Rollins, T. S. Chambers 1938-8-15 2722 Siskiyou 3 mi south of Weed 914 Comment
  UC1483494  Arctostaphylos patula J. Sawyer and J. Cole 1980-7-21 3906 Siskiyou near Haight Mtn. (along F.S. rd running ssw); Klamath National Forest, Bray Quad. 1938 Comment
  CAS-BOT-BC46436  Arctostaphylos patula Dudley 1922-4-1 s.n. Siskiyou Etna Mills. Comment
  SEINET11988295  Arctostaphylos patula C. Lamoureux, Srivastava, L.; Gankin, R. 1957-1 260 Siskiyou US 199, E side of hwy, approximately 2 mi N of Weed Comment
  CAS-BOT-BC47021  Arctostaphylos viscida subsp. viscida Lewis S. Rose 1945-6-22 45162 Siskiyou Walker, Klamath River. 533 Comment
  POM131596  Arctostaphylos viscida subsp. viscida Edward L. Greene 1903-7-14 3519 Siskiyou Klamathon. Comment
  RSA12620  Arenaria congesta C. B. Wolf 1934-7-5 5965 Siskiyou 3.6 miles from Dry Lake Lookout on road to Horse Creek, Siskiyou Mountains 1982 Comment
  SEINET11942772  Arenaria congesta H. P. Chandler 1901-1 1674 Siskiyou Marble Mountains 2438 Comment
  UC165944  Arenaria congesta var. suffrutescens Geo. D. Butler 1908-8-3 51 Siskiyou Log Lake Comment
  SD88372  Arenaria nuttallii subsp. gregaria Darley F. Howe 1972-7-4 Siskiyou Stony hilltop south of Del Norte; Siskiyou County marker on road to Youngs Valley. 1740 Comment
  UCD129099  Arnica cernua G. L. Stebbins Jr.; A. A. Beetle 1942-6-1 3269 Siskiyou 15 miles north of Happy Camp, above Indian Creek. 1219 Comment
  CAS-BOT-BC82247  Arnica chamissonis Calvin McMillan; Malcom A. Nobs 1949-6-17 797 Siskiyou Grass Lake, Highway 97 Comment
  CAS-BOT-BC82364  Arnica cordifolia J. H. Thomas 1954-5-13 4145 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, 1127 Comment
  CAS-BOT-BC82365  Arnica cordifolia J. H. Thomas 1954-5-13 4130 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, 1066 Comment
  CDA10118  Arnica cordifolia T. C. Fuller 1958-6-18 1795 Siskiyou Summit of Siskiyou Mountains along road between Cave Junction & Happy Camp. 0 Comment
  HSC22129  Arnica cordifolia J. O. Sawyer 1969-7-9 1236 Siskiyou Steep hillside above S Sugar Lake 2134 Comment
  CAS-BOT-BC82404  Arnica discoidea Alice Eastwood 1923-5-18 11848 Siskiyou Shasta Springs Comment
  CAS-BOT-BC82554  Arnica discoidea Annie M. Alexander; Louise Kellogg 1948-9-14 5620 Siskiyou Canyon Creek, branch of Scott River 762 Comment
  CDA16952  Arnica latifolia G. F. Hrusa 1993-8-14 11398 Siskiyou Summit of pass betw. Happy Camp, Ca. and O'Brien, Or., just on Ca. side of state boundary. 1371 Comment
  RSA215646  Arnica latifolia Gilbert Muth 1969-8-10 1310 Siskiyou Ridge west of Boulder Peak 2226 Comment
  HSC22160  Arnica latifolia J. O. Sawyer 1969-6-12 930 Siskiyou Along trail to Duck Lake 1799 Comment
  RSA184714  Arnica latifolia Gilbert Muth 1966-7-19 431 Siskiyou Marble Mountain Lookout Trail, Marble Mountains. 1829 Comment
  UC722579  Arnica latifolia C. L. Hitchcock and J. S. Martin 1939-7-7 5233 Siskiyou on rd to Bolan Lake ((5 mi from cut-off at juction with Takilma-Happy Camp rd)) 1767 Comment
  JEPS35690  Arnica mollis Geo. D. Butler 1908-8-4 336 Siskiyou Shackleford Creek (head of) Shackleford Creek 1676 Comment
  UC1408811  Arnica parryi Frederick W. Oettinger 1969-7-28 1087 Siskiyou Tom's Upper Pond (above) Marble Mountain Wilderness Area, English Peak, The Salmon Mo 2026 Comment
  CAS-BOT-BC90088  Arnica viscosa A. A. Heller 1920-8-12 13519 Siskiyou near Horse Camp, Mt. Shasta Comment
  HSC29299  Arnica viscosa Frederick W. Oettinger 1968-9-2 668 Siskiyou High Lake Basins near English Peak, marble Mountain Wilderness Area; N facing slope SSW of Upper English Lake 1860 Comment
  CAS-BOT-BC84976  Artemisia arbuscula subsp. arbuscula Louis C. Wheeler 1934-8-26 3226 Siskiyou Trapper Cr. - Klamath National Forest 1981 Comment
  RSA184688  Artemisia arbuscula subsp. arbuscula Gilbert Muth 1966-8-7 504 Siskiyou Lookout trail along ridge, Marble Mts. 2058 Comment
  JEPS74562  Artemisia norvegica subsp. saxatilis W. J. Ferlatte 1966-8-5 342 Siskiyou Caribou Mountain Trinity Alps 2468 Comment
  UC205773  Artemisia nova H. M. Hall 1919-10-2 Siskiyou Shasta Valley Comment
  SEINET7239372 Image available Artemisia tridentata G. D. Butler 1910-9-12 1883 Siskiyou Butte Valley 1280 Comment
  RSA96621  Aruncus sylvester Percy C. Everett, E. K. Balls 1954-10-13 20280 Siskiyou Seiad Creek, road to Kangaroo Mt, 6.5 miles NE from Hwy 96. 701 Comment
  RSA134151  Aruncus vulgaris Percy C. Everett, E. K. Balls 1959-10-24 23950 Siskiyou 7.4 miles NW from Forks, along Salmon River, Sawyers Bar to Somes Bar. 244 Comment
  RSA605352  Asarum caudatum L. C. Wheeler 1959-7-25 7603 Siskiyou Marble Mountains: Camp Three, Rogers Creek. Comment
  HSC96815  Asarum caudatum S. Lyon, J. McIntire 2006-6-25 20 Siskiyou On FS Rd. 39N27, 0.6 mi. W of intersection with FS Rd. 39N60, S side of road 1220 Comment
  CAS-BOT-BC400693  Asarum hartwegii J. H. Thomas 1954-5-13 4132 Siskiyou Southwestern Siskiyou County. Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville. Vicinity of Blind Horse Creek 1066 Comment
  RSA416099  Asarum hartwegii Anonymous 1907-1 s.n. Siskiyou Near Dunsmuir Comment
  SBBG16539  Asclepias cordifolia D. Myrick 1961-6-20 271 Siskiyou near Mt Shasta City 1066 Comment
  CDA39801  Asclepias cordifolia F. D. Horn 1977-5-22 s.n. Siskiyou North shore, Copco Lake, east of Hornbrook. 0 Comment
  SEINET10580360  Asclepias cordifolia Edward L. Greene 1876-6-19 Greene 862 Siskiyou Near Yreka Comment
  CHSC71848  Asclepias fascicularis Vernon H. Oswald; Lowell Ahart 1998-9-8 9601 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi west of Mosquito Lake and Whitehorse Flat Reservoir. 1112 Comment
  HSC30617  Asclepias speciosa Frederick W. Oettinger 1969-8-12 1331 Siskiyou Salmon Mtns., 1 mi. from Etna Summit on Rd. toward Etna. Comment
  CAS-BOT-BC69596  Aspidotis densa Roxana S. Ferris; Laura Lorraine 1948-6-12 11794 Siskiyou Scott Mountain Road s. of Callahan. Comment
  POM210963  Aspidotis densa L. C. Wheeler 1934-8-26 3224 Siskiyou Trapper Creek, Siskiyou Mountains 1982 Comment
  POM23231  Aspidotis densa E. B. Copeland 1903-8-18 3815 Siskiyou Mount Eddy 1677 Comment
  RSA577173  Aspidotis densa L. C. Wheeler 1934-8-26 3224 Siskiyou Trapper Creek Comment
  POM23228  Aspidotis densa H. H. Tracy 1913-08 s.n. Siskiyou Castella Comment
  CAS-BOT-BC99230  Aster Alice Eastwood 1912-8-28 1941 Siskiyou Cantara Comment
  RSA238702  Aster alpigenus Frederick W. Oettinger 1969-8-19 1452 Siskiyou Along the Tanner's Peak Trail, 1/2 mi, NEE of the summit of David Mt. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  RSA259559  Aster ledophyllus J. P. Smith, J. O. Sawyer 1973-8-14 7318 Siskiyou Hillside west of Cliff Lake 1982 Comment
  POM193509  Aster oregonensis J. B. Feudge 1928-8-11 1912 Siskiyou Mt. Shasta City 1037 Comment
  RSA770803  Aster oregonensis H. M. Hall 1902-9-6 s.n. Siskiyou [no specific location on label] 1128 Comment
  POM41384  Aster radulinus Geo. D. Butler 1910-7-20 1729 Siskiyou Goosenest foothills 1524 Comment
  CAS-BOT-BC182968  Astragalus filipes Elmer I. Applegate 1935-6-5 9331 Siskiyou Capt. Jack's Stronghold, Lava Beds National Monument Comment
  JEPS82699  Astragalus filipes Wayne Roderick 1984-6-6 Siskiyou South Fork Sacramento River 1524 Comment
  CAS-BOT-BC186920  Astragalus inversus John Thomas Howell 1934-7-4 12388 Siskiyou Se. corner of Siskiyou Co. Comment
  UC144159  Astragalus lentiginosus var. lentiginosus A. A. Heller 1905-6-19 8062 Siskiyou Grenada Station Comment
  POM204046  Astragalus obscurus Alice Eastwood, John T. Howell 1934-4-20 1786 Siskiyou 4 miles N of Weed. Comment
  POM259608  Astragalus purshii var. tinctus J. T. Howell 1939-8-4 15055 Siskiyou Marble Rim, Marble Mts 1890 Comment
  POM16192  Astragalus whitneyi E. B. Copeland 1903-8-18 3842 Siskiyou Mount Eddy 2744 Comment
  CHSC30658  Astragalus whitneyi var. siskiyouensis M. S. Taylor; W. Overton 1980-7-8 3091 Siskiyou On s side of 40N43, ca. 3 mi w of its jct with 40N26, at w end of Lake Siskiyou. 1432 Comment
  CHSC63399  Astragalus whitneyi var. siskiyouensis Vernon H. Oswald; Lowell Ahart 1994-7-11 6398 Siskiyou Forest Rd. 26 (to Mt. Shasta) 0.6 mi N of Gumboot Trailhead on the Pacific Crest Trail, W of Dunsmuir. 1926 Comment
  RSA215617  Astragalus whitneyi var. siskiyouensis Gilbert Muth 1969-8-7 1258 Siskiyou Boulder Peak Ridge. 2470 Comment
  HSC44583  Asyneuma prenanthoides Laura Witherspoon 1977-8-10 Siskiyou 2 mi. up FS Rd. 12N13 W of Bald Butte 610 Comment
  UCD78115  Athyrium alpestre var. americanum Robert E. Preston 2002-7-14 1935 Siskiyou Klamath National Forest, N slope of Rainbow Mountain 1981 Comment
  JEPS50864  Athyrium distentifolium var. americanum Al Hobart 1967-8-8 Siskiyou n slope of Preston Slope; westernmost Siskiyou Co 1828 Comment
  RSA333468  Athyrium filix-femina subsp. cyclosorum Dave Kelly, Walter Wisura 1985-7-30 4071 Siskiyou Siskiyou Mountains, along Middle Creek Road, north of Horse Creek Comment
  CAS-BOT-BC66201  Athyrium filix-femina var. cyclosorum Edward Lee 1934-8-13 1074 Siskiyou watershed of West Branch of Indian Creek, Happy Camp to Waldo (Oregon) road, Klamath National Forest 1371 Comment
  UC1190386  Athyrium filix-femina var. cyclosorum Ira L. Wiggins 1955-7-24 13500 Siskiyou trail at crossing of China Creek (above diversion dam) 1301 Comment
  CAS-BOT-BC66181  Athyrium filix-femina var. cyclosorum Gilbert Muth 1965-8-3 s.n. Siskiyou Creek at Marble Valley Comment
  RSA422252  Atriplex L. C. Wheeler 1934-10-21 3329 Siskiyou Shasta Valley 4 mi E Grenada 869 Comment
  HSC4367  Atriplex rosea R. C. Wunner 1965-8-14 416 Siskiyou Lava Beds National Monument, Hovey Point. 1220 Comment
  UC204767  Avena fatua Geo. D. Butler 1909-6-27 849 Siskiyou Shasta River bluffs Comment
  JEPS95668  Balsamorhiza lanata Vernon H. Oswald and L. Ahart 1999-7-5 9811 Siskiyou Gazelle Mtn. on road 41N03 0.6 mi southeast of Gazelle-Callahan Hwy.: T41N R7W Sect. 3, 5000 ft, yellow pine forest, serpentine substrate 1524 Comment
  CHSC118187  Balsamorhiza lanata Sarah Tona 2015-6-9 3 Siskiyou Along the west side of Old Highway 99, 1.8 miles south of Gazelle. Coordinates: 44.494926, -122.510921 WGS84. 876 Comment
  CAS-BOT-BC145847  Beckmannia syzigachne Dorothy Parker 1950-6-21 s.n. Siskiyou Scott Valley (Fay Lane). 853 Comment
  SEINET10967578  Beckmannia syzigachne Louis C. Wheeler 1935-6-27 Wheeler 3621 Siskiyou Edge of irrigation ditch in sunny meadow. Greenview, Scott Valley 884 Comment
  HSC3351  Berberis nervosa Jerry Parker 1968-10-6 151 Siskiyou 1372 Comment
  CAS-BOT-BC76001  Berberis pumila Wm. F. Herrin 1920-5-1 s.n. Siskiyou Shasta Springs. Comment
  UC893934  Bidens cernua Louis C. Wheeler 1934-10-21 3337 Siskiyou 4 mi e of Grenada (Shasta Valley); Shasta Valley 868 Comment
  HSC68518  Bistorta bistortoides Maralyn A. Renner 1980-6-26 1168 Siskiyou Flint Valley. 1390 Comment
  HSC81744  Bistorta bistortoides Thomas W. Nelson, Jane P. Nelson 1980-7-20 6186 Siskiyou Above and to SE of Big Carmen Lake 1738 Comment
  UCD77955  Bistorta bistortoides Robert E. Preston 2003-7-31 2176 Siskiyou Rainbow Mountain, at base of N slope, in upper Antelope Creek Meadow. 1661 Comment
  HSC2267  Blepharipappus scaber Geo. D. Butler 1910-5-17 1355 Siskiyou Yreka Comment
  JEPS40211  Blepharipappus scaber Geo. D. Butler 1909-5-10 697 Siskiyou near Yreka Comment
  UC1278816  Blepharipappus scaber Louis C. Wheeler 1934-6-22 2760 Siskiyou Cottonwood Creek, Siskiyou Mountains Siskiyou Mountains, Cottonwood Creek 914 Comment
  CAS-BOT-BC15796  Boechera acutina H. A. Thomas; J. H. Thomas 1954-7-24 4480 Siskiyou Salmon-Trinity Mountains vicinity of Rush Lake and Rush Creek Meadow. About 9 miles east of Cecilville. 1981 Comment
  UC166052  Boechera breweri Geo. D. Butler 1909-7-15 892 Siskiyou Highland Mine Comment
  CAS-BOT-BC16050  Boechera breweri subsp. shastaensis Lincoln Constance; Reed Clark Rollins 1942-5-14 2930 Siskiyou Klamath-Siskiyou Region. Shasta River 6 miles north of Yreka. 762 Comment
  CAS-BOT-BC16048  Boechera breweri subsp. shastaensis John Thomas Howell 1937-7-26 13568 Siskiyou Between Big Flat and Caribou Gulch, Salmon River Canyon. Comment
  CAS-BOT-BC14094  Boechera pauciflora Elmer I. Applegate 1935-6-2 9274 Siskiyou Lava Beds National Monument. Indian Well Ranger Station. Comment
  CAS-BOT-BC14411  Boechera platysperma R. E. Frenkel 1964-10-2 921 Siskiyou In Panther Meadow Campground near Mount Shasta. 2377 Comment
  CAS-BOT-BC14672  Boechera rectissima R. E. Frenkel 1964-7-13 670 Siskiyou On shoulder of Everitt Memorial Highway. 1493 Comment
  CAS-BOT-BC25424  Boechera retrofracta Marion Ownbey; Ruth P. Ownbey 1938-7-20 1760 Siskiyou 1 mile east of Dry Lake Lookout, summit of the Siskiyou Mountains. Comment
  CAS-BOT-BC25425  Boechera retrofracta Ira L. Wiggins; Dorothy B. Wiggins 1961-6-15 16493 Siskiyou At quarry on Glass Mountain. Comment
  CAS-BOT-BC25616  Boechera retrofracta John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53410 Siskiyou Fort Jones. 853 Comment
  JEPS104001  Boechera retrofracta Geo. D. Butler 1908-8-3 128 Siskiyou near Log Lake 1524 Comment
  UC165992  Boechera subpinnatifida Geo. D. Butler 1909-4-25 610 Siskiyou Quartz Valley Comment
  UC1618150  Botrychium multifidum J. C. Game 1996-6-23 96 /44 Siskiyou ca. 8 mi s Etna (just w of Forest Service Rd 41N14(High CCC Rd.), less than 2 mi nw of its junction with Tiger Creek Rd.); Etna Quadrangle 1280 Comment
  JEPS25843  Boykinia major Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7468 Siskiyou at edge Twin Valley meadows (about 13 mi nw of Happy Camp); Siskiyou Mountains 1524 Comment
  HSC60813  Boykinia major Ruby Van Deventer 1962-8-15 Siskiyou Bell Echo Camp in Youngs Valley 1220 Comment
  UC1585413  Boykinia major R. Raiche, K. Zadnik, and H. Forbes 1989-10-3 UCBG 42 Siskiyou on rd to Cook and Green Pass at Horsetail Falls (n of Seiad Valley) 1254 Comment
  UC375292  Brassica rapa Geo. D. Butler 1908-7-14 1048 Siskiyou fields near Yreka Comment
  CAS-BOT-BC100470  Brickellia californica Carl B. Wolf 1927-8-26 1005 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  UC75828  Brickellia grandiflora Milo S. Baker 1899-7-1 Siskiyou e slope of Mt. Shasta Mt. Shasta Comment
  UC894186  Brickellia grandiflora Alice Eastwood 1912-7-26 1459 Siskiyou Pitt to Kennet Sisson Comment
  SEINET5707333 Image available Brickellia greenei Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7693 Siskiyou Scott Mts. Collected along Road 17, 8.8 mi. SW from the intersection of I-5 and Stewart Spring Rd.; Scott Mountains 1586 Comment
  POM147663  Brickellia greenei Alice Eastwood 1912-8-30 2093 Siskiyou Mount Eddy Comment
  UCSC000152  Brodiaea coronaria I. J. Condit 2007-6-30 s.n. Siskiyou Sisson Comment
  JEPS7663  Brodiaea elegans subsp. elegans Geo. D. Butler 1909-6-13 891 Siskiyou Oro Fino Comment
  CAS-BOT-BC144105  Bromus Ira L. Wiggins 1950-5-27 12354 Siskiyou Banks of east fork of Scott River, at Callahan Ranger Station, Callahan. 975 Comment
  CHSC98798  Bromus J. K. Nelson; Rhonda Posey, Mary Ellen Colberg, Twyla Miller 2006-5-19 2006 -017 Siskiyou North side of Mt. Shasta, south of Hwy 97; Hotlum Fire area burned in February 2006. 1090 Comment
  UCD58313  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. 1942-5-31 3388 Siskiyou At Weed. Comment
  UCD58497  Bromus carinatus var. marginatus A. H. Murphy 1955-5-29 55 V Siskiyou Klamath National Forest. Marble Mountains. Clear Lake. 1798 Comment
  HSC103018  Bromus diandrus J. P. Smith 2014-6-6 13875 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  CAS-BOT-BC155217  Bromus hordeaceus Wm. Bridge Cooke 1938-7-15 11216 Siskiyou Mount Shasta. Above Bear Springs. 1676 Comment
  UCD58758  Bromus hordeaceus August L. Hormay 1932-4-20 s.n. Siskiyou Brownwell. Comment
  UCD58799  Bromus hordeaceus Geo. D. Butler 1909-5-26 819 Siskiyou Field near Yreka. Comment
  UCD58853  Bromus inermis subsp. inermis Al Franklin 1987-7-10 87 -29 Siskiyou Flank of Everitt shield volcano, near Mt. Shasta. 1609 Comment
  UCSB63786  Bromus japonicus Oswald, Vernon; Ahart, Lowell 1998-7-21 Siskiyou Hwy 97 between Weed and Macdoel at W end of Grass Lake (T44N R3W NE1/4 Sect 28) 1524 Comment
  CHSC83259  Bromus laevipes L. P. Janeway 2002-7-13 7644 Siskiyou High Cascade Range. Along a logging spur road 0.2 km southeast of Road 13 (Pilgrim Creek Road) 9.0 kmk northeast of the Military Pass Road (Road 19); 0.2 km north of Edison Creek. 1347 Comment
  CAS-BOT-BC105073  Bromus orcuttianus R. C. Wenk 2008-7-24 915 Siskiyou SW side of Mount Shasta, growing by side of road, Everitt Memorial Highway 1676 Comment
  SEINET3245417  Bromus orcuttianus A. A. Heller 1905-1 6454 Siskiyou Near Shasta Springs Comment
  UC73779  Bromus orcuttianus W. A. Setchell, C. C. Dobie 1902-7-15 Siskiyou Mount Shasta, Sisson Sisson; Mount Shasta, Sisson Comment
  SEINET10868044  Bromus orcuttianus A. Arthur Heller 1915-7-18 Heller s.n. Siskiyou Open places in the forest in moist soil, Metcalf's ranch, base of Mt. Eddy. Douglas fir has replaced Jeffrey pine. Comment
  CDA16171  Bromus tectorum G. F. Hrusa, T. D. Wilfred 1999-5-31 15070 Siskiyou Klamath Ranges; E side of I-5 at Klamath R. rest area +- 10 mi N of Yreka area former homestead, numerous cultivated plants, persisting, no evidence of habitation. With Lupinus albifrons on slope above river, in undisturbed area. Annual, common. 640 Comment
  CAS-BOT-BC185382  Bromus vulgaris John Thomas Howell 1937-7-23 13364 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  CAS-BOT-BC185260  Calamagrostis koelerioides Doris K. Kildale 1929-8-24 9009 Siskiyou Preston Peak. Rattlesnake Meadow. 1676 Comment
  CAS-BOT-BC85731  Calocedrus decurrens Doris K. Kildale 1929-5-11 7715 Siskiyou Cecilville, south fork of Salmon River Comment
  CAS-BOT-BC85747  Calocedrus decurrens Gilbert Muth 1966-8-3 495 Siskiyou Marble Valley Meadow, Marble Mts. 1792 Comment
  RSA12603  Calocedrus decurrens C. B. Wolf 1934-7-6 5983 Siskiyou 1/4 mile east of Mt. Shasta City, southwest slope of Mt. Shasta 1098 Comment
  RSA184686  Calocedrus decurrens Gilbert Muth 1966-8-3 495 Siskiyou Marble Valley Meadow, Marble Mtns. 1793 Comment
  UC139966  Calocedrus decurrens Dr. E. B. Copeland 1903-8-13 3913 Siskiyou on Big Spring Creek; Sisson 1066 Comment
  SEINET10531061  Calocedrus decurrens Jeffrey Huber 1971-6-9 Huber 269 Siskiyou 3 mi N of Weed, on US Hwy 97; S facing 20.00.00 slope; roadside; in Pinus ponderosa, P. jeffreyi, and Artemisia tridentata and Purshia. 1128 Comment
  SBBG15287  Calochortus coeruleus H. and M. Dearing 1939-7-1 3793 Siskiyou Salmon Mtn summit 1828 Comment
  SEINET4169790  Calochortus elegans Marion Ownbey, D. H. Brown 1941-6-23 2429 Siskiyou On ridge near Gunsight Peak , Mountains west of Yreka Comment
  CAS-BOT-BC488605  Calochortus elegans var. nanus Wm. F. Herrin 1922-5-1 1922 Siskiyou Shasta Springs Comment
  CAS-BOT-BC488610  Calochortus elegans var. nanus L. E. Smith 1914-6-9 713 Siskiyou Sisson Comment
  HSC60468  Calochortus elegans var. nanus Carl Wishner 1978-7-19 552 Siskiyou Monument Lake, Marble Mtn. Wilderness Area 1768 Comment
  UCD139525  Calochortus longebarbatus var. longebarbatus J. D. Jokerst 1983-7-21 1864 Siskiyou Center of the east edge of the large meadow at Wiley Ranch. Comment
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Oct 9 2014
  HSC44997  Calochortus nudus J. P. Smith, Steve Selva 1970-7-17 4463 Siskiyou Below Kangaroo Lake. 1890 Comment
  CAS-BOT-BC494016  Calochortus tolmiei Gilbert Muth 1965-8-6 s.n. Siskiyou Backside of Blk. Mt. 2072 Comment
  CAS-BOT-BC494019  Calochortus tolmiei Clarence Quick 1959-6-19 59 -09 Siskiyou 3 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  UC909366  Caltha biflora Ira L. Wiggins 1950-5-28 12367 Siskiyou Above Grouse Creek, ca 1.5 miles from Carmen Lake. 1584 Comment
  CAS-BOT-BC181515  Caltha leptosepala H. A. Thomas; J. H. Thomas 1954-7-24 4498 Siskiyou Vicinity of Rush Lake and Rush Creek Meadow, about 9 miles E of Cecilville, Salmon - Trinity Mts. 1981 Comment
  CAS-BOT-BC181499  Caltha leptosepala Lillian Mott 1976-7-9 48 LM76 Siskiyou Meadow below north slope of Lily Pad Lake ca. 7 mi. west of Cook and Green Pass 2011 Comment
  CAS-BOT-BC181500  Caltha leptosepala Milo S. Baker 1926-8-21 293 b-26 Siskiyou Wet spot near Sulphur Springs, 9 1/2 mi. from Mineral 2072 Comment
  RSA14483  Calycadenia ciliosa Elmer I. Applegate 1923-9-10 3983 Siskiyou Mouth of Salmon River, Klamath River Comment
  UC1953741  Calycadenia fremontii 1978-8-17 2130 Siskiyou 5.4 mi E of Callahan on the Gazelle-Callahan Road. See GDC 781. Comment
  CAS-BOT-BC272754  Calycadenia truncata subsp. truncata Dr. E. B. Copeland 1903-7-4 3547 Siskiyou Klamathon Comment
  JEPS127643  Calyptridium monospermum Jurriaan M. de Vos 2014-7-10 313 Siskiyou Klamath NF. Along and just S of Pacific Crest Trail, ca. 250 m E from Cook and Green Pass (Forest Road 1055). Comment
  HSC64321  Calyptridium monospermum J. P. Smith, Steve Selva 1970-8-8 4564 Siskiyou Comment
  UC141667  Calystegia malacophylla subsp. malacophylla H. E. Brown June 1-10 1897 397 Siskiyou near Sisson; near Sisson 1083 Comment
  CAS-BOT-BC221258  Calystegia malacophylla subsp. malacophylla Alice Eastwood No date on label 1276 Siskiyou Sisson Comment
  JEPS31612  Calystegia occidentalis subsp. occidentalis Geo. D. Butler 1909-5-30 764 Siskiyou near Yreka; near Yreka Comment
  POM208190  Calystegia occidentalis subsp. occidentalis L. C. Wheeler 1934-6-28 2817 Siskiyou Little Soda Creek, Sterling Mt. 1067 Comment
  POM76564  Calystegia occidentalis subsp. occidentalis Geo. D. Butler, R. T. Ferris 1910-5-20 1397 Siskiyou Humbug Mountain 1067 Comment
  RSA47654  Calystegia occidentalis subsp. occidentalis Roxana S. Ferris, Laura Lorraine, R. T. Ferris 1948-6-12 11865 Siskiyou 8 miles from summit of Gazelle Mt. grade, east side. 930 Comment
  CAS-BOT-BC37004  Camelina microcarpa R. E. Frenkel 1963-7-15 259 Siskiyou On Everitt Memorial Highway, 1.7 miles north of McCloud River RailRoad crossing near Mount Shasta. 1290 Comment
  UCD114104  Camelina microcarpa Roseman 1913-1 39 Siskiyou Butte Valley. Comment
  SEINET10840344  Campanula prenanthoides Muth 1976-7-29 MUTH s.n. Siskiyou NR KUNTZ CR, SEIAD V. QUAD, NR SEIAD VALLEY 6001', FOREST FLOOR, COBBLY SOIL Comment
  UC479158  Campanula prenanthoides Marcus E. Jones, A. M. 1931-7-17 29061 Siskiyou Shasta City (Session's) Comment
  UC1282012  Campanula rotundifolia Louise Kellogg Aug 5 1953-Aug 7 1953 108 Siskiyou 1 mi n Cory Peak (11 mi e of Callahan on road to Gazelle, then s 5.8 mi on logging road); Scott Mountains, Klamath National Forest, Cabin Meadow 1844 Comment
  CAS-BOT-BC266451  Campanula scabrella Alice Eastwood 1912-8-30 2010 Siskiyou Mount Eddy Comment
  RSA456190  Campanula scouleri L. C. Wheeler 1934-6-7 2648 Siskiyou Hungry Creek Lookout. 1502 Comment
  SEINET10463787  Campanula scouleri Clifton 1975-7-29 CLIFTON s.n. Siskiyou Near Copper Butte; Seiad Valley quadrangle near Seiad Valley 1414 Comment
  UC131860  Campanula scouleri Dr. E. B. Copeland 1903-8-17 3911 Siskiyou Mt. Eddy 1310 Comment
  SEINET10972077  Campanula scouleri Hemphill 1970-8-11 HEMPHILL s.n. Siskiyou SANGER LAKE MONTANE FOREST 1524 Comment
  UC855731  Capsella bursa-pastoris A. A. Heller 1916-6-20 12417 Siskiyou ne base of Mount Eddy, Metcalf's Ranch Mount Eddy; , Metcalf's Ranch 1188 Comment
  UCD114169  Cardamine bellidifolia Dean Wm. Taylor 1975-8-14 5456 Siskiyou Mt. Shasta, between Shasta Ski area and Green Butte. 2590 Comment
  RSA233659  Cardamine bellidifolia R. F. Thorne, Frederick W. Oettinger 1969-8-10 39009 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  RSA281668  Cardamine cordifolia var. lyallii S. O. Mattoon 1978-7-23 120 Siskiyou Wright Lakes Trail at Upper Wright Lake, approx. 11 air miles W of Fort Jones, Marble Mts. 2195 Comment
  POM80145  Carex E. B. Copeland 1903-8-14 5038 Siskiyou Sisson. Comment
  CAS-BOT-BC19764  Carex abrupta John Thomas Howell 1939-8-1 15192 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  CAS-BOT-BC19765  Carex abrupta John Thomas Howell 1939-8-9 15192 Siskiyou Marble Mountains. Sky High Valley. 1828 Comment
  HSC29662  Carex abrupta Frederick W. Oettinger 1968-8-11 485 Siskiyou Marble Mtn. Wilderness Area, Tom Taylor Cabin 1982 Comment
  CAS-BOT-BC17866  Carex amplifolia Melissa A. Berry 1957-7-11 s.n. Siskiyou Sugar Creek CCC Road, west of Callahan. 1463 Comment
  HSC62615  Carex amplifolia Al Hobart 1968-6-18 Siskiyou Youngs Valley Comment
  CAS-BOT-BC17894  Carex angustata W. R. Dudley 1899-8-15 s.n. Siskiyou Black Fox Mountain. Comment
  CHSC40184  Carex aquatilis var. aquatilis L. P. Janeway 1982-8-21 167 Siskiyou From the upper Twin Valley meadow. 1584 Comment
  CHSC40170  Carex aquatilis var. dives L. P. Janeway 1982-7-2 36 Siskiyou At Poker Flat, at end of rd 18N33. 1524 Comment
  CHSC55553  Carex aquatilis var. dives L. P. Janeway 1983-8-16 560 Siskiyou At Poker Flat. 1524 Comment
  CAS-BOT-BC18134  Carex athrostachya Elizabeth McClintock; Wayne Roderick; Martha Roderick 1967-7-28 s.n. Siskiyou Trinity Mountains. Gumboot Lake. 1828 Comment
  POM79948  Carex athrostachya E. B. Copeland 1903-9-7 2151 Siskiyou Mt. Eddy. 2134 Comment
  CAS-BOT-BC19402  Carex bolanderi J. W. Stacey 1940-8-8 15422 Siskiyou Mount Shasta. Along the cascade below the big Squaw Valley Creek Spring. 1463 Comment
  UC673  Carex breweri W. H. Brewer 1862-9-13 1392 Siskiyou Mt. Shasta; ; Mt. Shasta 2743 Comment
  HSC73326  Carex concinnoides Gail Newton 1980-6-20 488 Siskiyou Near Bald Mtn. 1097 Comment
  HSC39845  Carex echinata subsp. echinata J. O. Sawyer 1969-7-25 1563 Siskiyou Above High Lake 2104 Comment
  HSC71096  Carex echinata subsp. echinata Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4513 Siskiyou Along W side of Hwy. 3 just N of Scott Mtn. Summit 1616 Comment
  HSC98401  Carex echinata subsp. echinata Jennifer Whipple 1977-8-6 2211 Siskiyou Mt. Eddy, SW of Dobkins Lake along drainage into the lake 2195 Comment
  CAS-BOT-BC20128  Carex feta William Bridge Cooke 1940-6-8 15124 Siskiyou In Mount Shasta City. 1082 Comment
  CHSC109948  Carex geyeri Peter F. Zika; Julia Nelson 2012-6-21 25906 Siskiyou Klamath Range. Ridge above South Fork Willow Creek, 9 air km ENE of Gazelle Mountain, Shasta-Trinity National Forest, FS Road 42N42Y, 0.25 road miles E of junction with 42N19. 1665 Comment
  CAS-BOT-BC20469  Carex halliana Alice Eastwood 1921-7-28 10943 Siskiyou Medicine Lake. Comment
  CHSC82813  Carex halliana L. P. Janeway 2002-7-13 7634 Siskiyou High Cascade Range. 1.6 km southeast of southeast corner of Medicine Lake; east side of Road 49 (44N75) 0.2 km north of Road 44N17. Drainage below the road. 2067 Comment
  UC535944  Carex halliana Elmer I. Applegate 1923-8-18 3880 Siskiyou Medicine Lake Comment
  SEINET10650708  Carex halliana Taylor 1987-8-9 Taylor 9269 Siskiyou Medicine Lake Area, extreme northeastern portion of county. Common on white pumice on floor of Alcohol Crater, SE 1/4 Section 7, T43N, R4E. Under Pinus contorta canopy, with few other herbaceous taxa: Eriogonum marifolium, Penstemon cinicola, Juncus balticus. Comment
  JEPS104437  Carex inops subsp. inops Martin J. Lenz 2003-6-9 19 Siskiyou 0.3 mi up 100R1 logging road from Tom Young Road, approx. 1 mi WNW of Pondosa 1254 Comment
  CHSC39000  Carex integra J. D. Jokerst 1983-7-5 1826 Siskiyou At the north end of Atkin's Meadow near the lodgepole pine margin. Ca 15 air mile east of McCloud. Comment
  CAS-BOT-BC278771  Carex interior Peter F. Zika; Barbara Wilson 2011-7-31 25669 Siskiyou FS Road 41N03, 1.6 road miles from junction with Gazelle-Callahan Road, 1.5 air miles NE of Mountain House, 3.5 air miles NW of Crater Lake, Scott Mountains, Klamath Range (KR) 1600 Comment
  JEPS63703  Carex jonesii B. C. Goldsmith 1916-10-10 37 Siskiyou Widow Creek Mt. Shasta, Widow Creek Comment
  RSA237326  Carex laeviculmis Frederick W. Oettinger 1969-8-19 1458 Siskiyou Abbott s Basin. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1905 Comment
  RSA237328  Carex laeviculmis Frederick W. Oettinger 1968-9-9 799 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
  HSC77210  Carex lanuginosa L. P. Janeway 1983-7-30 465 Siskiyou Along N shoreline of Iron Gate Reservoir 732 Comment
  CHSC96004  Carex lemmonii L. P. Janeway 2006-7-4 8784 Siskiyou Klamath Ranges. Scott Mountains; Darlingtonia fen and creeklet complex above Road 40N13 1.6 air km west of Scott Mountain Summit. 1728 Comment
  HSC81977  Carex lenticularis var. impressa Thomas W. Nelson, Jane Nelson 1979-6-16 4862 Siskiyou Above Mule Creek, along Hwy. 3, 4.4 mi. N of Scott Mtn. Summit 1220 Comment
  UC1265339  Carex lenticularis var. lipocarpa Frederick W. Oettinger 1968-9-7 750 Siskiyou n side Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area 2042 Comment
  HSC39867  Carex luzulina J. O. Sawyer 1969-7-11 1329 Siskiyou S Sugar Creek 2012 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
  CHSC96143  Carex mertensii L. P. Janeway 2006-7-1 8718 Siskiyou Klamath Ranges. Salmon Mountains; just west of Carter Meadow, north side of South Fork Salmon River. 1579 Comment
  UCD140645  Carex microptera John Thomas Howell 1939-8-5 15082 Siskiyou Spirit Lake, Marble Mountains. 1828 Comment
  CHSC115879  Carex multicaulis Peter F. Zika 2012-5-18 25888 Siskiyou Near Dunsmuir Avenue, S end of town of Dunsmuir, 3.6 air km SE of Mount Bradley, Klamath Range. 730 Comment
  HSC37184  Carex multicaulis J. O. Sawyer 1968-6-25 298 Siskiyou 1646 Comment
  CAS-BOT-BC23421  Carex multicostata John Thomas Howell 1937-7-22 13254 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  CAS-BOT-BC32282  Carex multicostata William J. Ferlatte 1974-7-14 1524 Siskiyou Big Flat, near South Fork of Salmon River. 1524 Comment
  CHSC40202  Carex pachystachya L. P. Janeway 1983-8-27 622 Siskiyou South end and sl above dry bed of vernal pond. Near the Twin Valley/Poker Flat trail. 1676 Comment
  CHSC48072  Carex pachystachya L. P. Janeway 1983-6-25 327 Siskiyou Seep along edge of dirt road ca 350 m N of West Branch USFS Station towards Indian Cr. 670 Comment
  CHSC71507  Carex pellita Vernon H. Oswald; Lowell Ahart 1998-7-21 9353 Siskiyou Northeast of Weed and south of Macdoel in an area of marshes and wet meadow along Old State Highway on the west side of Bray. 1417 Comment
  LA17781  Carex phaeocephala J. W. Stacey; 1940-7-26 15386 Siskiyou Mount Shasta, in the vicinity of Merriam's timberline on the W side of Shastina 2743 Comment
  UC642575  Carex preslii J. W. Stacey 1939-7-13 13636 Siskiyou Horse Creek Camp Mount Shasta Comment
  CAS-BOT-BC118607  Carex raynoldsii A. A. Heller 1922-7-15 13701 Siskiyou In the meadow at Medicine Lake 2133 Comment
  UCD77470  Carex raynoldsii Robert E. Preston 2002-6-21 1868 Siskiyou Klamath National Forest, Rainbow Mountain, S slope, N of Trout Creek 1659 Comment
  HSC86446  Carex rossii D. K. Imper 1987-7-22 Siskiyou 8 mi. E of Somes Bar, near Haypress Meadows 1372 Comment
  HSC39278  Carex scopulorum J. O. Sawyer 1968-7-22 553 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  CAS-BOT-BC117238  Carex spectabilis William Bridge Cooke 1938-9-8 11666 Siskiyou Mt. Shasta. 2590 Comment
  CAS-BOT-BC117244  Carex spectabilis W. R. Dudley 1899-8-24 s.n. Siskiyou Meadow-Craggy Peak. Comment
  CAS-BOT-BC117254  Carex spectabilis John Thomas Howell 1939-8-8 15151 Siskiyou Black Mt. Marble Mts. Comment
  HSC76946  Carex spectabilis K. T. Stillman 1976-7-14 232 Siskiyou Marble Mtn. Wilderness Area 1951 Comment
  JEPS25939  Carex spectabilis B. C. Goldsmith 1916-9-29 28 a Siskiyou Medicine Lake Comment
  UC1265454  Carex spectabilis Frederick W. Oettinger 1969-9-2 1601 a Siskiyou above Tom Taylor Cabin (Bear Meadow); Salmon Mountains, Marble Mountain Wilderness 2164 Comment
  HSC39289  Carex spectabilis J. O. Sawyer 1969-7-9 1238 Siskiyou Steep hillside above S Sugar Lake 2134 Comment
  RSA105479  Carex stipata G. D. Barbe 1955-6-29 29 Siskiyou 1 mile east of Callahan 976 Comment
  HSC69165  Carex straminiformis Maralyn A. Renner 1980-7-24 2068 Siskiyou Lily Pad Lake 1768 Comment
  UC1382  Carex straminiformis W. H. Brewer 1862-9-13 1397 Siskiyou Mt. Shasta 2133 Comment
  CAS-BOT-BC115837  Carex subfusca Alice Eastwood; John Thomas Howell 1937-6-26 5060 Siskiyou Near Forks of Salmon Comment
  CAS-BOT-BC115841  Carex subfusca Elmer Ivan Applegate 1895-5-28 780 Siskiyou Sisson, Strawberry Valley. Comment
  HSC37418  Carex subfusca J. O. Sawyer 1969-7-11 1328 Siskiyou S Sugar Creek 1829 Comment
  UC618784  Carex subfusca J. W. Stacey 1938-6-24 11082 Siskiyou MacBride Springs Mount Shasta Comment
  CAS-BOT-BC115843  Carex subfusca Lewis Samuel Rose 1937-7-3 37393 A Siskiyou Unspecified. 944 Comment
  CAS-BOT-BC115851  Carex subfusca William Bridge Cooke 1940-7-5 15272 Siskiyou In the sedge swamp at Wagon Camp. 1737 Comment
  SEINET7579987 Image available Carex vesicaria Ray Tallent 1987-8-12 897 a Siskiyou Klamath National Forest, Long Gulch Lake. 1939 Comment
  RSA238961  Carex vesicaria Frederick W. Oettinger 1969-8-22 1506 Siskiyou Along N shoreline of Horse Range Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1822 Comment
  UC1540249  Carex whitneyi Dean W. Taylor 1987-6-23 9048 Siskiyou McCloud River drainage 1219 Comment
  CHSC592  Cassiope mertensiana V. Holt 1932-7-10 Siskiyou Mt. Eddy. 2438 Comment
  LA41290  Cassiope mertensiana John Thomas Howell; 1937-7-25 13443 Siskiyou Caribou Basin, Salmon-Trinity Alps 1981 Comment
  HSC22112  Cassiope mertensiana subsp. ciliolata J. O. Sawyer 1969-7-9 1274 Siskiyou NE facing slope above S Sugar Lake 2256 Comment
  HSC30458  Cassiope mertensiana subsp. ciliolata Frederick W. Oettinger 1969-7-28 1083 Siskiyou Marble Mtn. Wilderness Area, High Lake Basins, Little Hancock Lake 2043 Comment
  SBBG16533  Castilleja applegatei D. Myrick 1961-6-19 267 Siskiyou near Mt Shasta City 1066 Comment
  JEPS16626  Castilleja applegatei subsp. pinetorum Douglas Barbe 1955-7-28 311 Siskiyou 1 mi w Scott Mt. Camp (near the Siskiyou-Trinity County line); Klamath Mountains 1676 Comment
  RSA425926  Castilleja applegatei subsp. pinetorum Francis W. Pennell 1940-7-18 26185 Siskiyou Route 99, 2-3 miles north of Mount Shasta City. 1159 Comment
  RSA425928  Castilleja applegatei subsp. pinetorum M. B. Dunkle 1944-6-26 9046 Siskiyou Siskiyou National Forest. Coastal Northern California. Comment
  HSC91234  Castilleja arachnoidea Jennifer Whipple 1976-7-1 1227 Siskiyou Near Little Crater Lake 2195 Comment
  UC1012497  Castilleja arachnoidea Francis W. Pennell 1940-7-17 26176 Siskiyou w of Etna; Salmon Mountains 1981 Comment
  POM147344  Castilleja arachnoidea subsp. shastensis D. D. Keck 1927-8-16 308 Siskiyou Horse Camp, south side of Mt. Shasta. 2470 Comment
  HSC64583  Castilleja lacera J. O. Sawyer 1979-5-26 3362 Siskiyou Along Hwy. 3 on N side of Scott Mtn. 1341 Comment
  CAS-BOT-BC254101  Castilleja miniata John Thomas Howell 1937-7-22 13293 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC29388  Castilleja miniata Frederick W. Oettinger 1968-8-6 424 Siskiyou Marble Mtn. Wilderness Area, SE corner of Hancock Lake 1951 Comment
  HSC42230  Castilleja miniata J. D. Mastrogiuseppe 1974-9-2 167 Siskiyou W slope of ridge of Red Rock Mtn. 2165 Comment
  HSC609  Castilleja miniata William J. Ferlatte 1967-7-26 764 Siskiyou NW side of Caribou Mtn. 1829 Comment
  HSC690  Castilleja miniata William J. Ferlatte 1967-8-23 1112 Siskiyou Head of Kidd Creek 2134 Comment
  UC725309  Castilleja miniata A. A. Heller 1940-7-24 15751 Siskiyou outlet of Castle Lake Comment
  CAS-BOT-BC254103  Castilleja miniata Francis W. Pennell 1940-7-17 26173 Siskiyou Open rocky diorite granite ridge, northeastern slope, Salmon Mountains, w. of Etna 2103 Comment
  RSA237564  Castilleja miniata Frederick W. Oettinger 1968-8-6 424 Siskiyou Southeast corner of Hancock Lake. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  CHSC88113  Castilleja pilosa Jenny Marr 1993-7-1 123 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS46016  Castilleja pruinosa L. R. Heckard 1956-8-7 828 Siskiyou 10.5 mi ne Weed (along Highway 97, n of Mt. Shasta) Comment
  UC705754  Castilleja pruinosa Marion Ownbey, Fred G. Meyer 1940-7-7 2218 Siskiyou Summit of Cayenne Ridge; Marble Mountain Comment
  POM266874  Castilleja pruinosa Marion Ownbey, Fred G. Meyer 1940-7-7 2218 Siskiyou Summit of Cayenne Ridge, Marble Mountain. Comment
  CAS-BOT-BC241081  Castilleja schizotricha K. T. Stillman 1976-6-25 102 Siskiyou Marble Mountain Wilderness Area. NE facing in Black Mt. 2133 Comment
  UC922484  Castilleja schizotricha Annie M. Alexander and Louise Kellogg 1949-7-22 5840 Siskiyou Paradise Lake Marble Mountains (trail to Kings Castle, top of ridge) 2072 Comment
  JEPS79524  Castilleja tenuis L. R. Heckard 1980-7-12 5407 Siskiyou ca 10 air mi ne Weed (meadow border at sw end of Grass Lake, n of state highway maintenance station); Grass Lake Comment
  CAS-BOT-BC48654  Ceanothus cordulatus Alice Eastwood 1912-7-20 s.n. Siskiyou Sisson Comment
  CAS-BOT-BC50692  Ceanothus integerrimus var. macrothyrsus Alice Eastwood 1912-7-23 1316 Siskiyou Dunsmuir Comment
  CAS-BOT-BC53081  Ceanothus prostratus W. C. Blasdale 1894-7-31 s.n. Siskiyou Sissons Comment
  POM85302  Ceanothus prostratus Geo. D. Butler 1910-5-10 1317 Siskiyou Goosenest Foothills. Comment
  UCD77491  Ceanothus prostratus Robert E. Preston 2001-7-21 1737 Siskiyou Klamath National Forest, Rainbow Mountain, T42N R1W se 1/4 of ne 1/4 Section 22 2194 Comment
  JEPS42293  Ceanothus sanguineus Duncan Dunning 1922-6-5 Siskiyou Moffitt Creek 1066 Comment
  HSC30669  Ceanothus velutinus Frederick W. Oettinger, R. F. Thorne 1969-8-6 1228 Siskiyou Marble Mtn. Wilderness Area, SE of Pine Lake 1905 Comment
  JEPS82497  Ceanothus velutinus Gilbert Muth 1965-7-30 141 Siskiyou back n ridge Marble Rim; Marble Mt. Wilderness Area 2011 Comment
  UC375372  Ceanothus velutinus Geo. D. Butler 1908-8-3 412 Siskiyou Shackleford Creek Log Lake, Shackleford Creek Comment
  UC455426  Ceanothus velutinus I. J. Condit 1911-7-22 Siskiyou Mt. Shasta Comment
  JEPS42299  Ceanothus velutinus var. lorenzenii L. N. Lorenzen 1920-9-19 Siskiyou Sisson Comment
  HSC49903  Centaurea cyanus Maralyn O'Meara 1974-5-25 441 Siskiyou On Road 8, 2.4 miles W of junction with Hwy. 3 915 Comment
  HSC26900  Centaurea cyanus J. P. Smith, J. O. Sawyer 1971-9-18 4797 Siskiyou Hwy. 3, between Callahan and Etna at the turnoff to the Proctor Ranch. Comment
  OBI53784  Centaurea cyanus David J. Keil 1992-7-20 23474 Siskiyou W side of Scott Valley, 3.8 mi S of Fort Jones along Calif rte 3 875 Comment
  RSA190692  Centaurea diffusa T. C. Fuller 1967-8-15 16262 Siskiyou 3 roadside plants, W side of Hwy 97 to weed, 3 miles S of Macdoel, Butte Valley Comment
  CDA7267  Centaurea maculosa J. Shaw, B. Ruddiman 1974-7-16 Siskiyou Interstate 5 southbound, approximately six miles north of Weed. 0 Comment
  NY444414  Centaurea solstitialis M. L. Conrad 1973-6-1 6970 Siskiyou At the north edeg of Hornbrook 731.5 Comment
  UC1216710  Centaurea solstitialis W. B. and V. G. Cooke 1962-8-19 33547 Siskiyou Mt. Shasta 1280 Comment
  OBI4699  Centaurea stoebe subsp. micranthos T. C. Fuller 1963-8-26 11155 Siskiyou In adj lawn of ranch house and rangeland, W.H. Kerr, Flying K Ranch, upper Quartz Valley, 2 mi S of Mugginsville Comment
  JEPS25882  Centaurium muehlenbergii Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-21 7481 Siskiyou 4 mi above Oak Bottom guard station (or 5 mi above and se of Somes Bar, in gorge of Salmon River); Salmon River 274 Comment
  HSC2261  Centromadia fitchii Geo. D. Butler 1910-7-31 1805 Siskiyou Near Yreka Comment
  SEINET7379744 Image available Centromadia fitchii G. D. Butler 1910-7-31 1805 Siskiyou Near Yreka Comment
  RSA381930  Cephalanthera austiniae M. B. Dunkle 1944-7-3 9069 Siskiyou Beaver Creek, Siskiyou National Forest. Sierra Nevada Comment
  HSC26147  Cerastium beeringianum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5688 Siskiyou E slope of Kangaroo Mtn. above Toehead Lake. 1890 Comment
  UCD97999  Cerastium dichotomum T. C. Fuller 1962-5-18 8475 Siskiyou B. M. Long prop., Little Shasta Road, 5 miles east of Montague. Comment
  HSC68106  Cerastium fontanum subsp. vulgare J. P. Smith 1973-5-5 6499 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  RSA211237  Cerastium fontanum subsp. vulgare William J. Ferlatte 1967-6-27 529 Siskiyou Big Flat; wooded area near public camp; Trinity Alps. Comment
  UC15100  Cercis occidentalis State Survey Aug 1862 1328 Siskiyou Shasta City; mountain Comment
  CAS-BOT-BC135448  Cercocarpus betuloides var. betuloides Alice Eastwood; John Thomas Howell 1934-4-20 1746 Siskiyou Near Yreka on Ft. Jones Road Comment
  UC165260  Cercocarpus betuloides var. betuloides Geo. D. Butler 1909-4-26 672 Siskiyou Oro Fino Comment
  JEPS101143  Cercocarpus betuloides var. macrourus Dean W. Taylor 1996-6-20 15719 Siskiyou upper Noyes Valley; along Noyes Valley Creek (ca. 20 air miles SW of Yreka) 1371 Comment
  UC1037433  Cercocarpus ledifolius var. ledifolius Douglas Barbe 1955-8-1 321 Siskiyou e of Craggy Lookout (on Mount Bolivar, Scott Mountains); Klamath Mountains, Scott Mountains, Mount Bolivar 2255 Comment
  CAS-BOT-BC276755  Chaenactis douglasii var. douglasii Louis C. Wheeler 1934-6-15 2715 Siskiyou Hungry Creek, Siskiyou Mountains 1280 Comment
  UC144397  Chaenactis douglasii var. douglasii A. A. Heller 1905-6-9 8014 Siskiyou Montague Comment
  CAS-BOT-BC276778  Chaenactis douglasii var. douglasii A. A. Heller 1916-6-23 12431 Siskiyou Near Black Butte N of Sisson 1127 Comment
  CAS-BOT-BC106044  Chaenactis suffrutescens Louis C. Wheeler 1935-6-15 3586 Siskiyou Greenview, Scott Valley 883 Comment
  RSA23949  Chamaebatiaria millefolium O. V. Matthews 1939-7-13 35 Siskiyou NW slope of Goose Nest, E of Yreka. 1524 Comment
  CDA35240  Chamaesyce glyptosperma F. D. Horn 1980-7-18 s.n. Siskiyou Weed; at the end of Big Rock Road, Shastina Properties. 0 Comment
  HSC19498  Chamerion angustifolium subsp. circumvagum J. O. Sawyer 1969-8-4 1864 Siskiyou Slope SW of Sugar Lake 2195 Comment
  HSC92069  Chamerion angustifolium subsp. circumvagum Jennifer Whipple 1977-8-5 2180 Siskiyou Wagon Creek drainage on E face of Mt. Eddy 2317 Comment
  CAS-BOT-BC68208  Cheilanthes gracillima Marion Ownbey; Ruth P. Ownbey 1938-7-19 1754 Siskiyou Summit of the siskiyou Mountains, 2 1/2 miles northwest of Dry Lake Lookout Comment
  POM255830  Cheilanthes gracillima Marion Ownbey, Ruth P. Ownbey 1938-7-19 1754 Siskiyou Summit of the Siskiyou Mountains, 2.5 miles northwest of Dry Lake Lookout Comment
  CAS-BOT-BC68219  Cheilanthes gracillima J. H. Thomas 1954-5-14 4173 Siskiyou Salmon Mountains, Klamath National Forest - Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville, 1219 Comment
  CAS-BOT-BC68237  Cheilanthes gracillima Ira L. Wiggins 1955-7-27 13531 Siskiyou Salmon-Trinity alps Primitive Area - on rocky ridge along west side of Caribou Lake 2042 Comment
  CAS-BOT-BC68242  Cheilanthes gracillima Gilbert Muth 1965-8-6 s.n. Siskiyou Trail to backside of Blk Mt. Comment
  SEINET8671711 Image available Cheilanthes gracillima W. Bridge Cooke 1937-1 9094 Siskiyou Mt. Shasta, horse camp 2438 Comment
  UC1190383  Cheilanthes gracillima Ira L. Wiggins 1955-7-27 13531 Siskiyou w side Caribou Lake; Salmon-Trinity Alps Primitive Area Comment
  UC922663  Cheilanthes gracillima Annie M. Alexander and Louise Kellogg 1948-9-8 5600 Siskiyou top of grade between Sawyers Bar and Etna; Siskiyou Mts 1737 Comment
  UC1034058  Chenopodium botrys W. Bridge Cooke 1941-9-5 16265 Siskiyou along Memorial Hwy as far as MacBride Springs; Mt. Shasta Comment
  JEPS59720  Chenopodium foliosum Willis L. Jepson 1894-8-1 14861 Siskiyou Sisson Mt. Shasta Comment
  CAS-BOT-BC451435  Chimaphila menziesii Wm. Bridge Cooke 1938-8-5 11458 Siskiyou Mount Shasta: along the Sisson Southern Trail 1828 Comment
  HSC73225  Chimaphila menziesii Gail Newton 1980-6-20 518 Siskiyou Near Bald Mtn. 1326 Comment
  RSA467013  Chimaphila menziesii M. B. Dunkle 9253 Siskiyou Marble Mts. Klamath N.F. Comment
  CAS-BOT-BC452258  Chimaphila umbellata John Thomas Howell 1937-7-26 13559 Siskiyou Caribou Gulch Comment
  CAS-BOT-BC452275  Chimaphila umbellata Arthur Menzies 1962-7-21 s.n. Siskiyou Morgan Meadows, base of Mt. Eddy 1706 Comment
  JEPS124857 Image available Chimaphila umbellata P. L. Billings 1965-7-13 120 Siskiyou Dead Horse Creek Canyon Rd. Intersection of HWY 89. Comment
  CAS-BOT-BC252661  Chorizanthe membranacea Louis C. Wheeler 1934-6-9 2665 Siskiyou Klamath River between Dutch Creek adn Deadman Gulch, Siskiyoui Mts. 670 Comment
  HSC36664  Chrysolepis chrysophylla Brent Whiteley 1975-6-28 91 Siskiyou 915 Comment
  CAS-BOT-BC36242  Chrysolepis sempervirens W. R. Dudley 1899-8-22 s.n. Siskiyou Slopes of Craggy Peak Comment
  UC5452  Chrysolepis sempervirens Milo S. Baker 1893-8-8 Siskiyou Medicine Lake 1981 Comment
  CAS-BOT-BC36237  Chrysolepis sempervirens C. H. Merriam 1898-9-1 s.n. Siskiyou north side of Mt. Shasta Comment
  LA28602  Chrysothamnus viscidiflorus subsp. viscidiflorus Lewis S. Rose; 1941-8-28 41427 Siskiyou Dorris 1291 Comment
  HSC19173  Circaea alpina subsp. pacifica J. O. Sawyer 1969-8-4 1889 Siskiyou Above S Sugar Lake 2043 Comment
  UC1483452  Circaea alpina subsp. pacifica Maralyn A. Renner 1980-6-24 1022 Siskiyou tributary stream to E. Fork Seiad Creek (where crossed by F.S. rd. 48N20); Klamath Nat'l Forest, Seiad Valley Quad. 1018 Comment
  JEPS24816  Cirsium andersonii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6829 Siskiyou U.S. Forest Service camp ground at Scott Mtn. road summit Scott Mtn. (boundary of Siskiyou and Trinity Cos.) 1646 Comment
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Jan 4 2012
  UC336877  Cirsium andersonii unknown 336877 Siskiyou near Sissoon Comment
  CDA32841  Cirsium arvense CDFA Staff 1985-6-27 Siskiyou Tule Lake. 0 Comment
  CDA1184  Cirsium cymosum T. C. Fuller 1958-6-19 1830 Siskiyou South of road to Montague, 1.5 miles east of Yreka. 0 Comment
  UC165436  Cirsium cymosum var. cymosum Geo. D. Butler 1910-5-20 1368 Siskiyou Yreka Comment
  HSC77096  Cirsium remotifolium K. T. Stillman 1976-7-30 336 Siskiyou Marble Mtn. Wilderness Area, Elk Valley. Comment
  RSA0070872  Cirsium remotifolium David J. Keil, Kathleen Keil, Mary Faustini 1990-7-28 s.n. Siskiyou Klamath National Forest. Marble Mountain Wilderness, Rye Creek Trail. Comment
  CAS-BOT-BC286473  Cirsium scariosum David D. Keck 1949-7-19 6350 Siskiyou 2 mi. S. of Grenada 777 Comment
  CAS-BOT-BC286471  Cirsium scariosum John Thomas Howell 1952-6-14 28334 Siskiyou Gazelle Comment
  HSC46175  Clarkia gracilis subsp. gracilis Jennifer Whipple 1978-6-5 2328 Siskiyou Weston Gulch in Scott Valley 854 Comment
  JEPS107395  Clarkia lassenensis Lowell Ahart, John Dittes 2005-6-10 12099 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
  CAS-BOT-BC163458  Clarkia purpurea subsp. quadrivulnera Geo. D. Butler 1909-5-14 747 Siskiyou Klamath River Comment
  HSC42940  Clarkia rhomboidea J. O. Sawyer, Ken Stillman 1976-7-1 2775 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  CAS-BOT-BC164987  Clarkia rhomboidea Gilbert Muth 1966-7-22 432 Siskiyou Meadow below Marble Rim, Marble Mts. 2011 Comment
  SEINET10689277  Clarkia rhomboidea Edward L. Greene 1876-6-20 Greene 874 Siskiyou Collected near Yreka, California. Comment
  CAS-BOT-BC439101  Claytonia cordifolia Gilbert Muth 1966-7-8 354 Siskiyou Marble Valley, Marble Mts. 1792 Comment
  CAS-BOT-BC439103  Claytonia cordifolia Geo. D. Butler 1910-6-5 1510 Siskiyou Shackleford Creek Comment
  CHSC1374  Claytonia cordifolia V. Holt 1943-8-8 Siskiyou Marble mountains. 1828 Comment
  UC163798  Claytonia exigua subsp. exigua Geo. D. Butler 1909-4-17 674 Siskiyou near Yreka Comment
  HSC37545  Claytonia exigua subsp. exigua J. P. Smith 1974-5-27 7608 Siskiyou Along FS Rd. 47N03 1524 Comment
  CAS-BOT-BC439624  Claytonia parviflora subsp. parviflora Alice Eastwood 1923-5-18 11846 Siskiyou Shasta Springs Comment
  RSA237269  Claytonia perfoliata Frederick W. Oettinger 1967-6-28 130 Siskiyou On Salmon River near mouth of Kelly Gulch. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 616 Comment
  UC144454  Claytonia rubra subsp. rubra A. A. Heller 1905-6-1 7924 Siskiyou between Dunsmuir and Upper Soda Springs (not far from the railroad) Comment
  HSC22226  Claytonia rubra subsp. rubra J. O. Sawyer 1969-7-1 991 Siskiyou Above Paynes Lake Creek 1951 Comment
  HSC64301  Claytonia rubra subsp. rubra J. P. Smith, Steve Selva 1970-6-16 4021 Siskiyou 4 mi. from Hwy. 3 on Rd. 8 to Sugar Creek 1159 Comment
  HSC23687  Claytonia sibirica J. O. Sawyer 1971-7-15 2424 Siskiyou Along Red Rock Valley Creek 1585 Comment
  CAS-BOT-BC92760  Clematis ligusticifolia H. A. Thomas; J. H. Thomas 1954-7-23 4460 Siskiyou Salmon-Trinity Mountains, about 6 miles southeast of Cecilville. 883 Comment
  UC61083  Clematis ligusticifolia W. A. Setchell, C. C. Dobie 1902-7-21 Siskiyou Mt. Shasta, Sisson Comment
  HSC580  Clintonia uniflora William J. Ferlatte 1967-7-9 702 Siskiyou Kidd Creek Trail 1677 Comment
  RSA120217  Clintonia uniflora S. S. Tillett 1956-7-11 691 Siskiyou On N side Scott Mtn. divide near campground; Siskiyou-Trinity county line, ca. 8 miles SE of Callahan. 1616 Comment
  CAS-BOT-BC500961  Clintonia uniflora Lester Rowntree 1934-5-11 s.n. Siskiyou Happy Camp near Oregon-California Line Comment
  RSA181619  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
  UCD139629  Clintonia uniflora J. G. Ferrell 1941-4-1 s.n. Siskiyou Near Edgewood. Comment
  CHSC31204  Collinsia linearis M. S. Taylor 1980-7-8 3115 Siskiyou On ridge s of Castle Lake, above Hearts Lake. 2016 Comment
  JEPS31008  Collinsia linearis D. E. Breedlove 1962-6-10 3305 Siskiyou 11.7 mi nw Happy Camp (along Indian Creek Rd); Siskiyou Mtns 594 Comment
  UC1483450  Collinsia linearis Maralyn A. Renner 1980-6-23 990 Siskiyou Klamath National Forest, West Fork Seiad creek West Fork Seiad creek; Klamath National Forest, West Fork Seiad creek 877 Comment
  POM43374  Collinsia linearis Geo. D. Butler 1910-5-1 1262 Siskiyou Humbug Mountain. Comment
  SJSU6055  Collinsia parviflora R. W. Trivelpiece 1971-6-16 37 Siskiyou N of Alder Cr divide between Whaleback & Haight Mt c. 15 mi N of Mt Shasta 1676 Comment
  HSC68488  Collinsia rattanii Maralyn A. Renner 1980-6-9 843 Siskiyou Ridge SE of FS Rd. 45N35 1341 Comment
  SEINET13406273  Collinsia rattanii G. D. Butler 1910-5-1 1262 Siskiyou Humbug Mountain. 1219 Comment
  HSC37522  Collomia grandiflora J. P. Smith 1974-5-25 7415 Siskiyou Along Rd. 8, 0.9 mi. from its junction with Hwy. 3 976 Comment
  UC1409308  Collomia grandiflora Frederick W. Oettinger 1968-8-12 489 Siskiyou slope between lily pond and Tobacco Lake (High Lake Basins in Vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area 1889 Comment
  RSA237937  Collomia grandiflora Frederick W. Oettinger 1968-8-12 489 Siskiyou between lily pond and Tobacco Lake. The Salmon Mountains; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1890 Comment
  UCSB3059  Collomia heterophylla Hardham, Clare 1965-8-20 Siskiyou Granite Trail; near Cudahy lakes; Marble Mts. 1219 Comment
  POM208267  Collomia heterophylla L. C. Wheeler 1934-7-6 2889 Siskiyou Siskiyou Mountains: Hungry Creek. 1371 Comment
  CAS-BOT-BC94909  Collomia tinctoria R. C. Wenk 2005-7-16 251 Siskiyou Trinity Alps, above S Fork of Salmon River, S end of Big Flat Meadow 1493 Comment
  JEPS15750  Conium maculatum Geo. D. Butler 1909-6-26 924 Siskiyou Yreka Comment
  CAS-BOT-BC286041  Conyza canadensis L. E. Smith 1913-8-12 519 Siskiyou McCloud Comment
  HSC495  Corallorhiza maculata William J. Ferlatte 1966-6-22 83 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's. 1524 Comment
  SEINET5765338 Image available Corallorhiza maculata W. Bridge Cooke 1937-1 9225 Siskiyou Mt. Shasta, California 1829 Comment
  UCD138907  Corallorhiza mertensiana J. M. Tucker; D. V. Hemphill 1974-7-26 4296 Siskiyou slope above Let 'Er Buck Meadows, ca. 1/2 mile southeast of Haypress Meadows, Marble Mountain Wilderness Area. 1432 Comment
  RSA237635  Corallorhiza mertensiana Frederick W. Oettinger 1968-8-7 431 Siskiyou Woods across meadow from base camp, Hancock Lake. The Salmon Mountains. The high lake basins in the vicinity of English Peak. Marble Mountain Wilderness Area 1951 Comment
  UC1012233 Image available Cordylanthus tenuis subsp. pallescens F. W. Pennell 1940-7-19 26184 Siskiyou N of Mt. Shasta City, Siskiyou Co. Comment
  SEINET13682592  Cordylanthus tenuis subsp. viscidus B. L. Wilson, R. E. Brainerd 2010-8-5 16222 Siskiyou Shasta-Trinity NF, ca junction of Hwy 89 and FR 41N06, ca 10 miles E of McCloud. 774 Comment
  JEPS57501  Cordylanthus tenuis subsp. viscidus L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-8-13 2123 Siskiyou just a mile over s of downtown Dunsmuir (along Dunsmuir Ave) 822 Comment
  LA209041  Cordylanthus tenuis subsp. viscidus Rimo Bacigalupi; 1954-8-12 4790 Siskiyou In serpentine, 5.1 mi below (and SE of) summit of the road between Takilma, Ore. and Happy Camp Calif.- Klamath National Forest, Siskiyou Mountains; drainage of the West Branch of Indian Creek 914 Comment
  CAS-BOT-BC212283  Cornus glabrata L. R. Short 1933-6-8 126 Siskiyou Bank of Klamath River, Klamath Forest 701 Comment
  HSC65078  Cornus glabrata J. P. Smith, Steve Selva 1970-6-15 3937 Siskiyou Road between Forks of Salmon and Cecilville. 579 Comment
  UC1045280  Cornus glabrata W. Bridge Cooke 1940-6-20 15171 Siskiyou Klamath R. near Pacific Hwy. below Hornbrook; Klamath R. Comment
  CAS-BOT-BC212061  Cornus nuttallii Alice Eastwood 1922-10-18 115 Siskiyou Shasta Springs Comment
  CAS-BOT-BC212063  Cornus nuttallii Alice Eastwood 1923-5-27 11994 Siskiyou Shasta Springs 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
  UC642549  Cornus nuttallii W. Bridge Cooke 1939-8-4 13804 Siskiyou along the Sisson Southern Trail Mt. Shasta Comment
  SEINET3161704  Cornus pubescens G. D. Butler 1910-6-4 1490 Siskiyou Shackleford Creek Comment
  HSC19035  Cornus sericea subsp. sericea J. O. Sawyer 1969-7-18 1400 Siskiyou SW facing slope above S Russian Creek. 1905 Comment
  HSC61806  Cornus sericea subsp. sericea Ruby Van Deventer 1938-7-13 Siskiyou Poker Flat. 1585 Comment
  UC165402  Cornus sericea subsp. sericea Geo. D. Butler 1910-6-4 1490 Siskiyou Shackleford Creek Comment
  JEPS75962  Cornus sericea subsp. sericea William J. Ferlatte 1974-7-15 1541 Siskiyou Trinity Alps, Yellow Rose Mine Trail 1706 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
  UC581197  Crepis occidentalis E. B. Babcock and G. L. Stebbins Jr. 1936-6-11 1903 Siskiyou about 7 mi sw Yreka (s of hwy from Yreka to Fort Jones); Forest House Mt. 1363 Comment
  UC91844  Crepis occidentalis T. S. Brandegee Siskiyou Ager Comment
  CAS-BOT-BC290759  Crepis occidentalis subsp. occidentalis L. E. Smith 1914-5-14 696 Siskiyou Montague Comment
  CAS-BOT-BC290862  Crepis pleurocarpa P. M. Peterson; J. M. Saarela; C. J. Sears 2006-8-9 19779 Siskiyou Pacific Crest Trail, above Taylor Lake, Russian Wilderness 2145 Comment
  CAS-BOT-BC290874  Crepis pleurocarpa Alice Eastwood 1923-5-23 11925 Siskiyou Near Cantara Comment
  SEINET10474591  Crepis pleurocarpa Mary Merello 1993-6-22 Merello 698 Siskiyou Shasta National Forest. Along Forest Road 26 to Lake Siskiyou outside of Mt. Shasta City. Mixed conifer forest. Steep, rocky serpentine slopes along Sacramento River. 1270 Comment
  HSC70597  Crepis pleurocarpa J. O. Sawyer, R. J. Cole 1981-7-2 4155 Siskiyou Near Scott Mtn. Campground 1585 Comment
  CAS-BOT-BC299733  Crocidium Roxana S. Ferris; Laura Lorraine 1948-6-12 11835 Siskiyou Gazelle Mountain Grade, road between Callahan and Gazelle 1499 Comment
  UC566630  Crocidium multicaule Dorothy Tebbe 1930-3-28 43 Siskiyou Weed Comment
  UCR51766  Crocidium multicaule L. C. Wheeler 1935-5-5 03463 Siskiyou Siskiyou Mtns., Greenhorn Creek 854 Comment
  UCD105963  Cryptantha Jesse Miller 2010-1 s.n. Siskiyou Near Yreka.. 1219 Comment
  JEPS112999  Cryptantha affinis Dean W. Taylor 1999-6-9 17234 Siskiyou Humbug Gulch, ca. 1 mile WNE of Yreka 899 Comment
  UC726463  Cryptantha affinis A. A. Heller 1919-6-30 13287 Siskiyou near Durney's Mill Comment
  UC726531  Cryptantha affinis A. A. Heller 1916-6-20 12397 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  JEPS67620  Cryptantha intermedia M. K. Curran Jul 1887 Siskiyou Edgewood Comment
  UC1199974  Cryptantha intermedia Roy L. Taylor 1960-6-12 4446 Siskiyou 1 mi w jct. of Hwy. 96 (Klamath River Road) and Hwy. 99 (n of Yreka, above Klamath River) Comment
  HSC63983  Cryptantha milobakeri J. P. Smith, Steve Selva 1970-6-14 3862 Siskiyou Comment
  UC133720  Cryptantha simulans A. A. Heller 1905-6-15 8035 Siskiyou near Sisson Comment
  NY335192  Cryptantha trifurca E. B. Copeland 1903-7-5 3550 Siskiyou Klamathon Comment
  HSC27334  Cryptogramma acrostichoides J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5710 Siskiyou E slope of Kangaroo Mtn., above Toehead Lake. 1890 Comment
  RSA331956  Cryptogramma acrostichoides W. Wisura, Dave Kelly 1895-7-31 4080 Siskiyou Near Kangaroo Lake, Scotts Mtns, on granite rocks near campground. Comment
  CAS-BOT-BC70531  Cryptogramma cascadensis Geo. B. Grant 1902-9-1 5098 Siskiyou Horse Camp, Mt. Shasta 2438 Comment
  SEINET6166400 Image available Cryptogramma crispa subsp. acrostichoides W. V. Showalter 1954-8-8 Siskiyou Mt. Shasta. 2438 Comment
  CAS-BOT-BC80534  Cupressus bakeri Frank Callahan; John Erwin 1998-8-8 s.n. Siskiyou Goosenest Mtn., south of Ball Mtn./Little Shasta Rd. (uphill south of Historical Smiths Sawmill) 1676 Comment
  CAS-BOT-BC80564  Cupressus bakeri Oliver V. Matthews 1939-7-11 32 Siskiyou Seiad Grove and Region 1463 Comment
  RSA28202  Cupressus bakeri W. L. Jepson 1914-8-11 5764 Siskiyou Lava Beds 1037 Comment
  SEINET8714458 Image available Cupressus bakeri Oliver V. Matthews 1939-1 38 Siskiyou Northeast Goose Nest Grove. 1829 Comment
  CAS-BOT-BC85554  Cupressus macnabiana Thos. H. Harris 1951-6-1 s.n. Siskiyou On Klamath River 3 miles west of bridge on Highway 99 Comment
  UC2014184  Cuscuta campestris R. Wilson 2010-9-8 s.n. Siskiyou Siskiyou County: Near Tulelake. Growing in potato field. Comment
  UC879584  Cuscuta suksdorfii Louis C. Wheeler 1934-7-31 3011 Siskiyou 1 mi e Dry Lake Lookout; Siskiyou Mts. 1828 Comment
  POM210879  Cuscuta suksdorfii var. subpedicellata L. C. Wheeler 1934-8-21 3192 Siskiyou Head East Fork Horse Creek. Siskiyou Mountains. 1982 Comment
  UC618627  Cycladenia humilis var. humilis W. Bridge Cooke 1938-9-17 11704 Siskiyou ridge along canyon below/directly w. of Horse Camp (Mt. Shasta); Mt. Shasta Comment
  HSC103019  Cynosurus echinatus J. P. Smith 2014-6-6 13876 Siskiyou Along State Route 96 at the Portuguese Creek Access to the Klamath River 416 Comment
  JEPS45924  Cyperus acuminatus Louis C. Wheeler 1934-10-11 3317 Siskiyou Siskiyou Mountains, Klamath River, Oak Knoll Ranger Station Oak Knoll Ranger Station; Siskiyou Mountains, Klamath River 670 Comment
  UC838417  Cyperus bipartitus Louis C. Wheeler 1934-8-31 3229 Siskiyou Lund Ranch, W. Fork Beaver Creek Siskiyou Mts., W. Fork Beaver Creek, Lund Ranch 1066 Comment
  HSC79094  Cyperus squarrosus Paul Wilson 1984-8-29 358 Siskiyou Juanita Lake Reservoir, next to lake edge 1555 Comment
  CAS-BOT-BC136477  Cypripedium montanum Clarence R. Quick 1958-6-17 58 -25 Siskiyou Field redacted by CAS, contact the data manager for more information 1356 Comment
  HSC36425  Cystopteris fragilis J. O. Sawyer 1969-8-4 1876 Siskiyou S of S Sugar Lake 2104 Comment
  HSC50061  Cystopteris fragilis Terry Griswold 1979-7-24 9129 Siskiyou Near Hemlock Lake, close to the town of Macdoel 1988 Comment
  HSC69493  Cystopteris fragilis Maralyn A. Renner 1980-8-19 2490 Siskiyou S side of Caribou Lake 2104 Comment
  HSC69514  Cystopteris fragilis John S. Palmer 1980-8-13 795 Siskiyou Dead Cow Creek, near FS 47N44 from Beaver Creek Rd. 1616 Comment
  UC1265413  Dactylis glomerata F. W. Oettinger 1968-9-6 739 Siskiyou Bear Meadow Tom's Lake Region (Salmon Mountains, W Siskiyou Co.); Salmon Mountains, Tom's Lake Region 2186 Comment
  SEINET10515546  Dactylis glomerata Louis C. Wheeler 1935-6-30 Wheeler 3626 Siskiyou Dry roadside ditch. 3 miles S Yreka. Comment
  CAS-BOT-BC192261  Danthonia californica A. A. Heller 1915-7-18 12113 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1249 Comment
  JEPS76057  Danthonia californica W. L. Jepson 1937-7-23 18459 Siskiyou Hayden Mt. Yreka Comment
  LA102190  Danthonia californica John C. Roos; 1965-8-1 sn Siskiyou Marble Mountains, Middle Sky High Lake Comment
  CAS-BOT-BC192263  Danthonia californica Doris K. Kildale 1928-8-19 6506 Siskiyou English Lake, head of north fork of Salmon River 1828 Comment
  CAS-BOT-BC194397  Danthonia intermedia Wm. Bridge Cooke 1938-9-8 11666 Siskiyou Squaw Creek Meadows - Mount Shasta 2590 Comment
  HSC75125  Danthonia unispicata J. P. Smith, Thomas W. Nelson 1970-6-16 10146 Siskiyou Klamath National Forest: along Forest Rd. 40N03, 0.3 mi. from junction with Hwy. 3. 1463 Comment
  CHSC118612  Danthonia unispicata Julie Kierstead Nelson; Martin Lenz, Rhonda Posey, Brenna Montagne 2016-6-9 2016013 Siskiyou Lower Parks Creek watershed, E Klamath Range; along Forest Service Road 42N19, 3 miles northwest of Stewart Springs; UTM NAD 83 Zone 10, 539617m E, 4586637m N. 1360 Comment
  CHSC30186  Darlingtonia californica M. S. Taylor 1980-7-22 3171 Siskiyou Along creek and meadow, ca. 0.1 mi sw of Big Carme ... Field redacted by CHSC, contact the data manager for more information 1737 Comment
  HSC66258  Darlingtonia californica Maralyn A. Renner 1980-7-4 1435 Siskiyou Clear Creek Trail, N of Trout Camp 1037 Comment
  RSA331959  Darlingtonia californica W. Kelly, Walter Wisura 1985-7-31 4077 Siskiyou Kangaroo Lake, near camp site Comment
  RSA422668  Darlingtonia californica Christopher Davidson 1975-6-5 2676 Siskiyou 3.3 miles from gate on special service road branching to SE of road from Gazelle to Callahan 9.3 miles W of Gazelle; Klamath Nat'l Forest. 1623 Comment
  UCD168824  Darlingtonia californica Barry Rice 2015-9-6 BR 150905 Siskiyou Tamarack flats. 1870 Comment
  CAS-BOT-BC420660  Darmera peltata Don. Reinoehl 1925-4-1 s.n. Siskiyou Dunsmuir Comment
  CAS-BOT-BC141829  Dasiphora fruticosa John Thomas Howell 1939-8-8 15172 Siskiyou Black Mt., Marble Mts. Comment
  CAS-BOT-BC141830  Dasiphora fruticosa A. A. Heller 1915-8-26 12223 Siskiyou Heather meadow near the head of Wagon Creek Canyon, Mt. Eddy 2590 Comment
  UC166662  Datisca glomerata Geo. D. Butler 1910-7-19 1723 Siskiyou Little Shasta Comment
  RSA431673  Datisca glomerata Edwin Kline 1920-06 s.n. Siskiyou Siskiyou Mtns. Comment
  SEINET4890503  Datisca glomerata G. D. Butler 1910-7-19 1723 Siskiyou Little Shasta Comment
  CAS-BOT-BC9570  Delphinium antoninum J. H. Thomas 1954-5-13 4150 Siskiyou Salmon Mountains, Klamath National Forest. Near South Fork of Salmon River, 5 to 9 miles southeast of Cecilville 1127 Comment
  HSC65272  Delphinium depauperatum Rich White 1978-7-6 246 Siskiyou Pond above Elk Hole 1524 Comment
  CAS-BOT-BC8757  Delphinium glaucum John Thomas Howell 1939-8-5 15075 Siskiyou Spirit Lake, Marble Mountains 1828 Comment
  SBBG25946  Delphinium glaucum D. Myrick 1966-8-10 1517 Siskiyou Salmon Crk Trail at Mountain Meadow Ranch, Big Flat 1676 Comment
  CAS-BOT-BC8900  Delphinium glaucum Gilbert J. Muth 1965-8-2 s.n. Siskiyou Marble Valley Comment
  CAS-BOT-BC10145  Delphinium menziesii L. R. Short 1933-5-22 54 Siskiyou Klamath National Forest 609 Comment
  CAS-BOT-BC116164  Delphinium nuttallianum John Thomas Howell 1937-7-24 13404 Siskiyou Caribou Basin, Salmon-Trinity Alps. 2286 Comment
  HSC34156  Delphinium nuttallianum J. O. Sawyer 1969-7-9 1223 Siskiyou Along trail to Sugar Lake. 1768 Comment
  HSC41688  Delphinium nuttallianum J. P. Smith 1976-5-5 8704 Siskiyou Road between Forks of Salmon and Somes Bar. 366 Comment
  UC1190185  Delphinium nuttallianum Ira L. Wiggins 1955-7-27 13544 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC116172  Delphinium nuttallianum Clare Butterworth Hardham 1961-7-3 8070 Siskiyou Scott Mountains, South of Calahan. Comment
  HSC39751  Delphinium nuttallianum J. O. Sawyer 1970-4-4 2081 Siskiyou Along Sugar Creek 823 Comment
  HSC75105  Deschampsia danthonioides J. P. Smith, Thomas W. Nelson 1979-6-16 10131 Siskiyou Hwy. 3, 4.4 mi. from the Scott Mt. summit. 1220 Comment
  JEPS80518  Deschampsia danthonioides Gilbert Muth 1966-7-19 430 Siskiyou Marble Gap Trail along first bluff Marble Mt. Wilderness Area; , Marble Gap Trail 1828 Comment
  CAS-BOT-BC201936  Deschampsia elongata Doris K. Kildale 1928-8-20 6595 Siskiyou Lily Pad Lake, near Hancock Lookout on trail to Marble Mt. Comment
  CAS-BOT-BC201942  Deschampsia elongata Lewis S. Rose 1945-6-18 45122 Siskiyou Horse Creek & Klamath River 502 Comment
  HSC26484  Deschampsia elongata J. P. Smith, Steve Selva 1970-7-15 4368 Siskiyou 2 mi. below the Baldy Mt. Lookout Station. Comment
  HSC26550  Deschampsia elongata J. P. Smith, Steve Selva 1970-7-17 4464 Siskiyou Below Kangaroo Lake. 1890 Comment
  HSC42943  Deschampsia elongata J. O. Sawyer, Ken Stillman 1976-7-1 2779 Siskiyou Streamside terraces and lower slopes along the Little N Fork of the Salmon River. 732 Comment
  HSC88847  Deschampsia elongata J. P. Smith, Steve Selva 1970-6-16 4049 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  HSC6710  Descurainia longipedicellata R. C. Wunner 1965-8-23 474 Siskiyou Lava Beds National Monument, Lava Reef burn near NW dump 1220 Comment
  SD98874  Dianthus armeria Darley F. Howe 1977-7-2 4981 Siskiyou Scott River, resort area. 609 Comment
  RSA433581  Dicentra formosa subsp. formosa M. B. Dunkle 1944-6-25 9004 Siskiyou Siskiyou Mts. Beaver Creek. 1677 Comment
  CHSC640  Dicentra pauciflora V. Holt 1932-7-10 Siskiyou Mt. Eddy. Comment
  UCSB12329  Dicentra uniflora Dearing, Hugh; Dearing, Margaret 1938-6-21 Siskiyou Mt. Shasta 2438 Comment
  JEPS5684  Dichelostemma X venustum Geo. D. Butler 1909-7-15 889 Siskiyou Highland Mine Comment
  UC70383  Dichelostemma capitatum Milo S. Baker 1898-2-12 701 Siskiyou n slope Taylor Mt. Comment
  HSC30435  Dichelostemma ida-maia Frederick W. Oettinger 1969-7-31 1119 Siskiyou Marble Mtns. Wilderness Area, just above Willow Springs on trail between Abbott's Upper Cabin and English Lake 1692 Comment
  UC796627  Dichelostemma multiflorum Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11784 Siskiyou outskirts of Etna Etna Comment
  RSA47979  Dichelostemma multiflorum Roxana S. Ferris, Laura Lorraine 11784 Siskiyou Outskirts of Etna. Comment
  HSC5957  Dieteria canescens var. canescens D. M. Thomson 1965-8-21 202 Siskiyou California Lava Beds National Monument; 1/2 mi. N of Devil's Homestead Lava Flow Comment
  CAS-BOT-BC291026  Dieteria canescens var. shastensis John Thomas Howell 1939-8-4 15045 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  UC991121  Dieteria canescens var. shastensis J. M. Tucker 1950-7-24 1949 Siskiyou 7.5 mi e McCloud (beside Highway 89) 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
  CHSC1778  Diplacus jepsonii V. Holt 1932-6-23 Siskiyou McCloud river. 914 Comment
  CAS-BOT-BC153652  Diplacus jepsonii Alice Eastwood 1921-7-29 10951 Siskiyou Medicine Lake Comment
  CAS-BOT-BC153453  Diplacus layneae A. A. Heller 1925-6-25 13895 Siskiyou Near Black Butte along the Pacific highway Comment
  CAS-BOT-BC153721  Diplacus nanus Elmer I. Applegate 1935-6-11 9496 Siskiyou Upper Ice Cave area, Lava Beds National Monument Comment
  CAS-BOT-BC136090  Dodecatheon alpinum Harley P. Chandler 1901-6-1 1572 Siskiyou Ridges and meadows near Marble Moutnain 1828 Comment
  HSC65344  Dodecatheon jeffreyi Rich White 1978-7-3 210 Siskiyou Saddle in Spur Ridge between Dillon Trail and 5759 1662 Comment
  JEPS82488  Dodecatheon jeffreyi Gilbert Muth 1965-8-6 187 Siskiyou backside of Black Mt. Marble Mt. Wilderness Area, Black Mt. 2042 Comment
  POM259603  Dodecatheon jeffreyi J. T. Howell 1939-8-3 14950 Siskiyou Spirit Lake, Marble Mountains. 1829 Comment
  HSC29258  Dodecatheon jeffreyi Frederick W. Oettinger 1968-8-3 380 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: At 'Base Camp Meadow' between Diamond and Hancock Lakes 201 Comment
  SEINET11973424  Dodecatheon jeffreyi H. P. Chandler 1901-1 1573 Siskiyou near Marble Mountain 1829 Comment
  JEPS103651  Downingia yina T. Obrien 1996-8-9 Siskiyou Klamath National Forest. Vernal pool approximately 6.0 miles E of HWY 97 on Tennant Road, W of Tennant 1463 Comment
  SBBG25838  Downingia yina D. Myrick 1966-8-8 1479 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  UC199219  Draba albertina Annie M. Alexander and L. Kellogg 1911-6-26 190 Siskiyou Jackson L. 1798 Comment
  HSC40000  Draba aureola Jennifer Whipple 1976-7-24 1121 Siskiyou NW face of Mt. Eddy 2713 Comment
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Jul 7 2020
  CAS-BOT-BC41311  Draba pterosperma K. T. Stillman 1976-7-30 318 Siskiyou Marble Mountain Wilderness Area. Ridge top just north of Black Mountain. 2103 Comment
  SEINET4852968  Draba pterosperma G. D. Butler 1910-7-10 1716 Siskiyou Marble Mountain. 1677 Comment
  CAS-BOT-BC41414  Draba verna George Dexter Butler 1910-3-24 1143 Siskiyou Shasta River hills. Comment
  JEPS60249  Draperia systyla L. R. Heckard with L. Constance and R. Ornduff 1969-6-25 2315 Siskiyou Near Fall Creek Inn along Gilman Road, between Sacramento and McCloud arms of Shasta Lake 396 Comment
  UC455949  Draperia systyla I. J. Condit 1911-7-7 Siskiyou Shasta Retreat, along Rail Road 1066 Comment
  UC642568  Drymocallis W. Bridge Cooke 1939-8-22 13829 Siskiyou along Horse Camp Creek; Mount Shasta, along Horse Camp Creek Comment
  HSC62264  Drymocallis ashlandica Al Hobart 1968-6-13 Siskiyou Youngs Valley Comment
  RSA237854  Drymocallis glandulosa Frederick W. Oettinger 1969-8-5 1209 Siskiyou Dry hillside, Willow Spring on English Lake trail. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  JEPS47209  Drymocallis glandulosa var. glandulosa Geo. D. Butler 1909-5-31 779 Siskiyou Humbug Comment
  HSC18924  Drymocallis hansenii J. O. Sawyer 1969-8-3 1779 Siskiyou Near Little Duck Lake 2073 Comment
  CAS-BOT-BC159293  Drymocallis lactea var. lactea John Thomas Howell 1939-8-2 14940 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  SBBG88090  Drymocallis lactea var. lactea S. Morgan 1987-7-28 Siskiyou McGinnis Springs, 5 mi NW of McCloud, Shasta-Trinity National Forest, S of Mt Shasta 1767 Comment
  CAS-BOT-BC540709  Drymocallis pseudorupestris var. saxicola Dana York 2012-7-21 3142 A Siskiyou Siskiyou Mountains: Rogue River-Siskiyou National Forests, Red Butte Wilderness, a few meters below summit of Red Butte 2040 Comment
  UC1593362  Dryopteris expansa Alan Smith with Chris Richards, C. Don Macneill, Janet Sowers, Bob Martin, Pat Toops, and Barney 1992-6-6 2540 Siskiyou at base of entrance pit Fossil Cave; Lava Beds Nat'l Monument 1280 Comment
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May 30 2013
  HSC65132  Dysphania botrys J. P. Smith, Steve Selva 1970-7-17 4413 Siskiyou Along Klamath River. Comment
  UC197106  Echinochloa crus-galli Geo. D. Butler 1909-9-5 865 Siskiyou Yreka; Gardens Comment
  CAS-BOT-BC113350  Eleocharis engelmannii Doris K. Kildale 1928-7-25 5890 Siskiyou Klamath River at Mack's Creek near Hamburg Comment
  RSA577566  Eleocharis obtusa L. C. Wheeler 1935-7-20 3671 Siskiyou Scott Valley: Scott river 1.5 miles west of Fort Jones. 822 Comment
  CAS-BOT-BC112012  Eleocharis suksdorfiana William Bridge Cooke 1940-7-5 15270 Siskiyou Common in the sedge swamp at Wagon Camp, Mount Shasta Comment
  UC1037162  Elymus X hansenii Leo Whitney 1935-7-15 3472 Siskiyou 2 mi se Medicine Lake; Bullseye Lake Comment
  RSA238987  Elymus elymoides Frederick W. Oettinger 1969-9-2 1583 Siskiyou Crapo Meadow near Tom Taylor Cabin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UC1265447  Elymus elymoides subsp. elymoides Frederick W. Oettinger 1968-8-8 455 Siskiyou Crapo Meadow Salmon Mountains, Marble Mountain Wilderness Area (w Siskiyou Co., high lake basins in vicinity of English Peak) 2164 Comment
  HSC76754  Elymus elymoides var. californicus K. T. Stillman 1976-7-21 276 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  HSC98140  Elymus elymoides var. elymoides J. O. Sawyer 1969-6-12 913 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  HSC69221  Elymus glaucus Maralyn A. Renner 1980-8-31 2623 Siskiyou Twin Valley. 1494 Comment
  POM2058603  Elymus glaucus Copeland 1903-9-6 3802 Siskiyou Mt. Eddy Comment
  JEPS72965  Elymus glaucus subsp. jepsonii W. L. Jepson 1940-7-1 20084 Siskiyou 6 mi e McCloud; McCloud River, Fowlers Camp 975 Comment
  CAS-BOT-BC235225  Elymus multisetus Geo. D. Butler 1910-5-26 1412 Siskiyou Yreka Comment
  POM198623  Elymus multisetus Geo D. Butler 1910-5-26 1412 Siskiyou Yreka Comment
  UC70717  Elymus multisetus T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  CAS-BOT-BC392232  Enemion stipitatum Louis C. Wheeler 1935-3-10 3371 Siskiyou Miller Gulch off Klamath River, Siskiyou Mts. 670 Comment
  RSA237650  Epilobium angustifolium subsp. circumvagum Frederick W. Oettinger 1968-8-2 365 Siskiyou Outlet of Diamond Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2073 Comment
  HSC42892  Epilobium brachycarpum Ken Stillman 1976-8-15 407 Siskiyou Clearcut at junction of Specimen Creek and Little N Fork of the Salmon River 732 Comment
  SEINET12534307  Epilobium brachycarpum G. D. Butler 1910-7-3 1629 Siskiyou Goosenest foothills. 1219 Comment
  UC726611  Epilobium brachycarpum A. A. Heller 1916-8-24 12554 Siskiyou near Sisson 1074 Comment
  POM46472  Epilobium brachycarpum Geo. D. Butler 1910-7-3 1629 Siskiyou Goosenest Foothills 1220 Comment
  HSC99267  Epilobium ciliatum subsp. ciliatum J. O. Sawyer 1969-6-12 915 Siskiyou Along C.C.C. road just S of Sugar Creek 1463 Comment
  UC642587  Epilobium ciliatum subsp. glandulosum W. Bridge Cooke 1939-7-21 13718 Siskiyou meadow at Bear Springs Mount Shasta 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
  HSC29168  Epilobium hallianum Frederick W. Oettinger 1969-7-18 1053 Siskiyou Marble Mtn. Wilderness Area, SW of Upper English Lake 1951 Comment
  HSC92085  Epilobium hornemannii subsp. hornemannii Jennifer Whipple 1976-6-30 1217 Siskiyou Wagon Creek drainage near Wagon Creek 2195 Comment
  RSA211355  Epilobium hornemannii subsp. hornemannii William J. Ferlatte 1967-8-20 1057 Siskiyou Caribou Basin, Sawtooth Ridge. 2043 Comment
  UC1618333  Epilobium minutum Barbara Ertter 1990-7-14 9309 Siskiyou e. side Mt. Eddy ca. 4 airmiles due w. Mt. Shasta City (at streamlet near end of FR 41N53 ca. 1 mi. n. of Morgan Meadows, rocky roadcut near forest edge); Mt. Eddy 1676 Comment
  UC164470  Epilobium minutum Geo. D. Butler 1910-4-18 1195 Siskiyou near Yreka Comment
  JEPS39227  Epilobium oregonense Willis L. Jepson 1894-8-4 14470 Siskiyou Mt. Shasta Region of the Upper Sacramento Comment
  CAS-BOT-BC58005  Equisetum Carl B. Wolf 1927-8-26 1084 Siskiyou On the Klamath River, 14 mi. above Happy Camp. Comment
  HSC73294  Equisetum arvense Gail Newton 1980-6-20 516 Siskiyou Near Bald Mtn. 1097 Comment
  CAS-BOT-BC57235  Equisetum laevigatum Alice Eastwood 1923-5-22 11885 Siskiyou Sisson Comment
  CAS-BOT-BC204507  Eragrostis cilianensis Louis C. Wheeler 1934-10-24 3346 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  UCD63886  Eragrostis mexicana subsp. virescens Louis C. Wheeler 1934-10-6 3314 Siskiyou Siskiyou Mts. Oak Knoll Ranger Station, Klamath River. 670 Comment
  HSC4917  Eremogone congesta J. O. Sawyer 1968-7-22 542 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  UCD21461  Eremogone congesta Ellen Dean; with Gary Nakamura and K. Mawdsley 2002-7-28 1200 Siskiyou Shasta Trinity National Forest; NW of Castle Crags, in Castle Crags Wilderness. Found west of I-5, near headwaters of the south fork of the Sacramento River. Along trail to Gray Rock Lake. 1819 Comment
  CAS-BOT-BC168331  Eremogone congesta var. congesta A. A. Heller 1918-7-16 13031 Siskiyou Mt. Eddy, west of Sisson 2133 Comment
  CAS-BOT-BC168333  Eremogone congesta var. congesta Harley P. Chandler 1901-6-1 1674 Siskiyou Marble Mountain 2438 Comment
  CAS-BOT-BC286699  Ericameria bloomeri S. Cooper Smith 1942-10-11 42 - 1 Siskiyou Shasta National Forest. On #99 Highway at Black Butte 1188 Comment
  CAS-BOT-BC286705  Ericameria bloomeri Doris K. Kildale 1928-8-20 6614 Siskiyou Hancock Lookout, on trail to Marble Mt. 2151 Comment
  CAS-BOT-BC286710  Ericameria bloomeri Elmer I. Applegate 1914-8-26 11722 Siskiyou At Weed 1066 Comment
  CDA4624  Ericameria bloomeri Eldon Paddock, A. Gilbert 1979-8-28 Siskiyou Snowmans Summit, Highway 89 south of Mount Shasta, Siskiyou County. Comment
  HSC26574  Ericameria bloomeri J. P. Smith 1972-8-17 5747 Siskiyou Medicine Lake 2012 Comment
  UCD131319  Ericameria bloomeri Joseph M. DiTomaso 1976-9-7 686 Siskiyou Big Flat. Trinity Alps. 1524 Comment
  UCR45295  Ericameria bloomeri R. D. Goeden 1986-9-11 s.n. Siskiyou S of McCloud, along road in front of town cemetery 945 Comment
  CAS-BOT-BC286696  Ericameria bloomeri C. B. Wolf 1931-9-2 2391 Siskiyou On rd. to McCloud 1/2 mi. above junction with Pacific Highway 1097 Comment
  SEINET204960  Ericameria bloomeri Loran C. Anderson, Kent Fish 1965-8-17 2943 Siskiyou 3 miles north of town of Mount Shasta 1128 Comment
  CAS-BOT-BC287489  Ericameria greenei Alice Eastwood 1912-8-30 2040 Siskiyou Mt Eddy Comment
  CAS-BOT-BC287490  Ericameria greenei A. A. Heller 1914-8-28 11727 Siskiyou E side, Mt Eddy 1889 Comment
  HSC68174  Ericameria greenei J. P. Smith, J. O. Sawyer 1972-9-12 5777 Siskiyou Scott Mtn., slopes E of Big Carmen Lake 1982 Comment
  RSA236428  Ericameria greenei D. V. Hemphill 1972-8-22 2073 Siskiyou English Peak, Salmon Mts. 2165 Comment
  CHSC57344  Ericameria nauseosa Michael D. Mayes 1983-4-16 7 Siskiyou Ca. 8 mi sw of Tulelake. Approx. 250 yds n of n entrance to Lava Beds National Monument. 1231 Comment
  UC894742  Ericameria nauseosa var. oreophila A. A. Heller 1917-9-7 12978 Siskiyou 2 mi s of Grenada; Shasta Valley 914 Comment
  CAS-BOT-BC294307  Ericameria nauseosa var. speciosa Alice Eastwood 1917-9-2 6661 Siskiyou Shasta Springs Comment
  CAS-BOT-BC299468  Ericameria nauseosa var. speciosa Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  CAS-BOT-BC294406  Ericameria parryi var. latior A. A. Heller 1925-7-21 13898 Siskiyou At Spring Hill on the Pacific highway near the town of Mt. Shasta Comment
  UCR92627  Erigeron Kathy Harper, D. Karr 1994-6-16 s.n. Siskiyou Modoc National Forest, Forest Road 49 (Lava Beds/Medicine Lake Road), c. 1 mi north of southern boundary of Lava Beds National Monument 1402 Comment
  CAS-BOT-BC293504  Erigeron aliceae Doris K. Kildale 1928-8-18 6486 Siskiyou Head of North Fork of Salmon River at Finley's Upper Camp Comment
  CAS-BOT-BC376590  Erigeron aliceae Andrew Townesmith; Karen M. Meyer 2007-8-1 884 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway) 1983 Comment
  RSA238730  Erigeron aliceae Frederick W. Oettinger, R. F. Thorne 1969-8-4 1185 Siskiyou North side of Tobacco Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  UC922286  Erigeron aliceae Annie M. Alexander and Louise Kellogg 1949-7-19 5807 Siskiyou in meadows on trail up Kelsey Cr. (Paradise Lake); Marble Mountains, , Kelsey Cr. 2072 Comment
  JEPS41564  Erigeron bloomeri Geo. D. Butler 1909-5-10 699 Siskiyou dry hill near Yreka Comment
  JEPS105428  Erigeron cervinus Dean W. Taylor 1996-7-12 15789 Siskiyou Salmon Mountains; Patterson Creek drainage (about 5 air miles west of Etna); Klamath National Forest 1371 Comment
  CHSC71281  Erigeron chrysopsidis var. austiniae Vernon H. Oswald; Lowell Ahart 1998-6-11 9214 Siskiyou Klamath NF boundary on Old State Hwy. 1.5 mi south of the RR crossing south of Mount Hebron. 1295 Comment
  CHSC39002  Erigeron eatonii var. plantagineus J. D. Jokerst 1983-7-5 1820 Siskiyou Atkin's Meadow ca 15 air miles E of McCloud. Comment
  JEPS22365  Erigeron filifolius W. L. Jepson 1940-6-23 20008 Siskiyou n Mt. Shasta; Andesite station 975 Comment
  SD88299  Erigeron filifolius Darley F. Howe 1972-7-8 4879 Siskiyou 9.5 miles north of Weed on Highway 97. 1160 Comment
  UC895810  Erigeron filifolius A. A. Heller 1938-7-12 15255 Siskiyou on US Hwy 97 near w base of Deer Mountain Comment
  CAS-BOT-BC300478  Erigeron filifolius L. E. Smith 1915-7-6 s.n. Siskiyou Bray Comment
  HSC19466  Erigeron glacialis var. glacialis J. O. Sawyer 1969-7-18 1372 Siskiyou E of Waterdog Lake 2012 Comment
  CAS-BOT-BC295392  Erigeron inornatus John Thomas Howell 1939-8-2 14894 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  SBBG25833  Erigeron inornatus D. Myrick 1966-8-13 1555 Siskiyou Mountain Meadow Ranch, Big Flat 1524 Comment
  CAS-BOT-BC295426  Erigeron inornatus var. calidipetris Alice Eastwood 1921-7-25 10809 Siskiyou Bigelows, McCloud River Comment
  HSC100277  Erigeron inornatus var. inornatus J. P. Smith, , J. O. Sawyer, & R. J. Cole 2010-8-7 13075 Siskiyou Klamath National Forest, along road to botanical area off Forest Service Road 40N24 to Crater Lake. 1860 Comment
  SEINET5708481 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
  SEINET11859479  Erigeron inornatus var. inornatus Unknown 1953-1 123 Siskiyou Blue Point, Scott Mountain Public Campground, Klamath National Forest, Scott Mountains 1631 Comment
  CAS-BOT-BC295809  Erigeron petrophilus var. viscidulus Peter H. Raven 1956-9-4 10410 Siskiyou S. slope of Mt. Eddy 2682 Comment
  CAS-BOT-BC300114  Erigeron pumilus var. intermedius L. E. Smith 1913-5-18 268 Siskiyou Gazelle Comment
  HSC24104  Eriogonum compositum var. compositum J. O. Sawyer 1970-7-15 2352 Siskiyou Above Bear Lake 1585 Comment
  UC375309  Eriogonum elatum Geo. D. Butler 1908-8-6 202 Siskiyou Independence Creek Comment
  HSC77152  Eriogonum hirtellum L. P. Janeway 1983-6-26 349 Siskiyou Below Rd. 18N33 0.5 mi. from the Grayback Rd. 976 Comment
  JEPS25874  Eriogonum hirtellum Rimo Bacigalupi with L. Constance and L. Heckard 1960-7-20 7458 Siskiyou ridge-top between Indian Creek drainage (N. Fk. Twin Valley Creek) and Illinois River drainage (Dunn Creek) (boundary line of Del Norte and Siskiyou Counties); Preston Pk. quadr. 15 1956; between Indian Creek drainage & Illinois River drainage, boundary line of Del Norte & Siskiyou Cos. 1615 Comment
  POM105148  Eriogonum luteolum Geo. D. Butler 1910-6-17 1572 Siskiyou Near Yreka Comment
  JEPS56784  Eriogonum marifolium Willis L. Jepson 1894-8-4 Siskiyou Timber line, Mt. Shasta Mt. Shasta Comment
  UC598749  Eriogonum marifolium C. Hart Merriam 1898-7-19 4 Siskiyou Mt. Shasta Comment
  CAS-BOT-BC267392  Eriogonum marifolium var. marifolium John Thomas Howell 1937-7-29 13630 Siskiyou Scott Mt. between Trinity and Siskiyou cos. Comment
  CHSC1326  Eriogonum marifolium var. marifolium M. Yoder 1941-7-21 Siskiyou Castle Lake. 1981 Comment
  RSA393649  Eriogonum marifolium var. marifolium Cora Mae Life 1923-08 s.n. Siskiyou Near Horse Camp, Mt. Shasta. Comment
  RSA601667  Eriogonum niveum Louis C. Wheeler 1935-6-27 3610 Siskiyou Greenview, Scott Valley. 884 Comment
  LA206876  Eriogonum nudum var. nudum Louis C. Wheeler; 1934-6-19 2738 Siskiyou Siskiyou Mountains, N Hungry Creek 1097 Comment
  HSC23546  Eriogonum nudum var. nudum J. O. Sawyer 1969-7-18 1383 Siskiyou Ridge above S Russian Creek 1921 Comment
  HSC43404  Eriogonum nudum var. nudum K. T. Stillman 1976-7-21 278 Siskiyou Marble Mtn. Wilderness Area, ridge from Back Mtn. to Jump Off Point 2043 Comment
  CAS-BOT-BC269744  Eriogonum nudum var. oblongifolium A. A. Heller 1916-9-1 12641 Siskiyou Near Yreka Comment
  CAS-BOT-BC269738  Eriogonum nudum var. oblongifolium John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-5-21 53570 Siskiyou Yreka 822 Comment
  HSC77400  Eriogonum nudum var. oblongifolium L. P. Janeway 1983-5-29 318 Siskiyou Near base of S facing cutbank along Hwy. 96, 0.2 mi. E of Fort Goff 396 Comment
  HSC42982  Eriogonum nudum var. pubiflorum J. P. Smith, J. O. Sawyer 1971-9-18 4820 Siskiyou 1.2 mi. W of junction of Hwy. 3 and Rd. 8, N of Callahan. Comment
  JEPS40861  Eriogonum nudum var. pubiflorum Paul C. Hutchison 1962-8-3 945 Siskiyou just e Paint Pot Crater (between Grasshopper Flat and Little Medicine Lake) 1783 Comment
  UC618610  Eriogonum nudum var. pubiflorum Susan Stokes 1938-6-17 11037 Siskiyou Sisson Southern Trail Mt. Shasta, Sisson Southern Trail Comment
  HSC17318  Eriogonum nudum var. pubiflorum Jerry Parker 1968-10-6 124 Siskiyou Scott Mtn. Rd. Comment
  CAS-BOT-BC252953  Eriogonum pyrolifolium var. pyrolifolium Robert T. Clausen; Harold Trapido 1940-7-27 4968 Siskiyou West side of west fork of Mountainhouse Creek, 3 miles north-northeast of summit of Mt. Shasta, Sacramento River Basin, So. Cascade Mts. 2438 Comment
  CHSC102571  Eriogonum pyrolifolium var. pyrolifolium L. P. Janeway 2009-8-4 9905 Siskiyou High Cascade Range. Mt. Shasta, north slope, 3.7 air km south-southwest of Northgate Trailhead along a small creeklet. 2783 Comment
  JEPS56446  Eriogonum roseum Geo. D. Butler 1908-8-2 203 Siskiyou near Shackelford Creek; Quartz Valley Comment
  HSC17430  Eriogonum siskiyouense Dorothy Parker 1968-8-10 Siskiyou Kangaroo Divide above Kangaroo Lake 1921 Comment
  RSA98052  Eriogonum spergulinum var. reddingianum W. Bridge Cooke 1954-7-5 s.n. Siskiyou Military Pass road. Mt. Shasta. 1829 Comment
  RSA126712  Eriogonum sphaerocephalum Peter H. Raven 1956-9-4 10403 Siskiyou Rocky slope, south side of Mount Eddy. 2561 Comment
  CHSC71311  Eriogonum sphaerocephalum var. halimioides Vernon H. Oswald; Mike Dolan, Beth Corbin 1998-6-27 9242 Siskiyou Big Tableland at the southwest edge of the lower Klamath National Wildlife Refuge. Comment
  CAS-BOT-BC262765  Eriogonum strictum var. anserinum Wayne Roderick 1967-7-28 s.n. Siskiyou West side of Scott Valley, half way between Etna and Fort Jones 914 Comment
  HSC40981  Eriogonum strictum var. greenei J. O. Sawyer 1975-7-15 2697 Siskiyou 11 mi. W of Ft. Jones along SR 3 Comment
  JEPS56425  Eriogonum strictum var. proliferum W. L. Jepson 1940-6-23 19980 Siskiyou Yreka 822 Comment
  UC164080  Eriogonum strictum var. proliferum Geo. D. Butler 1909-6-19 970 Siskiyou Yreka Comment
  CAS-BOT-BC263446  Eriogonum ternatum Doris K. Kildale 1929-8-24 8819 Siskiyou Preston Peak 2133 Comment
  HSC61211  Eriogonum ternatum Al Hobart 1968-6-20 Siskiyou El Capitan 1829 Comment
  CAS-BOT-BC267934  Eriogonum umbellatum Alice Eastwood 1921-7-25 10802 Siskiyou Pilgrim Creek nursery Comment
  SBBG1641  Eriogonum umbellatum H. and M. Dearing 1938-6-28 2184 Siskiyou Mt Shasta 1524 Comment
  UCD101338  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-BC267948  Eriogonum umbellatum Dorothy Parker 1948-7-11 107 Siskiyou Upper Shovel Creek near Beswick 1011 Comment
  HSC39819  Eriogonum umbellatum var. argus J. O. Sawyer 1969-8-1 1687 Siskiyou SE facing slope above Duck Lake Creek 1951 Comment
  RSA237774  Eriogonum umbellatum var. argus Frederick W. Oettinger 1969-8-13 1353 Siskiyou Near English Peak Lookout. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mt. Wilderness Area. 2210 Comment
  RSA11905  Eriogonum umbellatum var. speciosum Elmer I. Applegate 1923-9-7 3961 Siskiyou Rocky summit of the Siskiyou Mountains, above Dry Lake Ranger Station. Comment
  SEINET3160103  Eriogonum umbellatum var. umbellatum G. D. Butler 1910-6-19 1580 Siskiyou Goosenest foothills 1524 Comment
  UC1413437  Eriogonum vimineum James L. Reveal, Caroline G. Reveal 1974-8-17 3797 Siskiyou about 12 mi sw Gazelle (along the Callahan-Gazelle road, about 16 mi ne of Callahan) 1219 Comment
  CAS-BOT-BC262376  Eriogonum vimineum V. June Wetherell 1961-8-9 489 Siskiyou Lava Beds National Monument Comment
  CAS-BOT-BC262379  Eriogonum vimineum Frank W. Peirson 1923-7-19 3708 Siskiyou Road crossing of Whiney Creek, west base of Mt. Shasta Comment
  POM105146  Eriogonum vimineum Geo. D. Butler 1910-7-31 1806 Siskiyou Summer Fallow Fish near Yreka Comment
  SEINET5332086  Eriogonum vimineum G. Butler 1910-6-17 1572 Siskiyou Dry hill near Yreka. Comment
  CAS-BOT-BC376589  Eriophorum crinigerum Andrew Townesmith; Karen M. Meyer 2007-8-1 883 Siskiyou Shasta-Trinity National Forest. 11.7 miles up Stewart Springs road/Forest Service road 17 (distance from intersection of Stewart Springs and Old 99 Highway) 1983 Comment
  POM185511  Eriophorum crinigerum Copeland 1903-8-18 3902 Siskiyou Mt. Eddy. Comment
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Jan 23 2011
  UC472272  Eriophyllum lanatum var. achilleoides H. W. Furlong Sep 1901 Siskiyou summit to Ager; Northern Siskiyou Co Comment
  CAS-BOT-BC301448  Eriophyllum lanatum var. grandiflorum A. A. Heller 1916-6-22 12438 Siskiyou Near Black Butte north of Sisson 1097 Comment
  CHSC75673  Eriophyllum lanatum var. integrifolium Vernon H. Oswald; Lowell Ahart 1999-7-5 9820 Siskiyou Hwy. 3 on Scott Mtn. 5.9 mi southeast of Gazelle-Callahan Hwy., 0.6 mi northwest of the highway summit. 1569 Comment
  OBI55483  Eriophyllum lanatum var. lanceolatum David J. Keil, Kathleen Keil 1992-7-21 23523 Siskiyou Klamath NF SE of Callahan on hwy 3, 0.8 mi NW of Scott Mtn summit Comment
  RSA50226  Eriophyllum lanatum var. lanceolatum E. K. Balls 1949-7-9 13933 Siskiyou 8.3 miles from Etna on road to Sawyer's Bar. 1006 Comment
  CHSC91383  Erodium cicutarium Lowell Ahart; John Dittes 2005-6-10 12058 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC67973  Erodium cicutarium J. P. Smith, Steve Selva 1970-6-15 3897 Siskiyou Oak Bottom Campground near Somes Bar. 229 Comment
  UCD77709  Eryngium alismifolium Robert E. Preston 2000-6-23 1379 Siskiyou Ca. 3.3 mi e of Grenada, on s side of A12, 0.5 mi w of Nelson Rd, 785 Comment
  UC166607  Erysimum capitatum Geo. D. Butler 1910-5-4 1273 Siskiyou dry hill near Yreka Comment
  CDA33622  Erysimum capitatum R. A. Price 2010-7-3 1655 Siskiyou Along Forest Service Road 17 (Stewart Springs Road); 5 miles east of crest. 0 Comment
  HSC36817  Erysimum capitatum var. capitatum J. P. Smith 1974-5-27 7616 Siskiyou Along FS Rd. 47N03 1280 Comment
  LA204335  Erysimum capitatum var. capitatum Ruth P. Rossbach; 1938-6-24 11073 Siskiyou Mount Shasta, vicinity of MacBride Springs 1523 Comment
  HSC91047  Erysimum perenne Jennifer Whipple 1976-7-24 1557 Siskiyou SW of Dobkins Lake along the drainage into the lake 2287 Comment
  JEPS50833  Erythronium grandiflorum Theodore Niehaus 1967-7-3 769 Siskiyou Sky High Lakes Marble Mt. Wilderness Area Comment
  HSC19558  Erythronium grandiflorum subsp. grandiflorum J. O. Sawyer 1969-7-18 1424 Siskiyou E of Russian Lake 2043 Comment
  HSC68361  Eschscholzia californica J. P. Smith, Steve Selva 1970-6-16 4053 Siskiyou 7 mi. W of Etna on road to Sawyers Bar. 1280 Comment
  CAS-BOT-BC403684  Eschscholzia californica Mrs. H. C. Cantelow 1936-5-30 1365 Siskiyou Bet. Yreka and Fort Jones Comment
  HSC695  Eucephalus ledophyllus var. ledophyllus William J. Ferlatte 1967-8-23 1108 Siskiyou Head of Kidd Creek 2134 Comment
  UC922320  Eucephalus tomentellus Annie M. Alexander and Louise Kellogg 1949-7-23 5854 Siskiyou Sky High Valley Marble Mountains, Paradise Valley 1920 Comment
  JEPS69764  Euphorbia crenulata W. B. and V. G. Cooke 1972-7-6 45461 Siskiyou Mud Creek Dam Road Mt. Shasta (Mt. Shasta) Comment
  UC144542  Euphorbia crenulata A. A. Heller 1905-6-5 7981 Siskiyou between Shasta Retreat and Shasta Springs Comment
  UC375458  Euphorbia crenulata Geo. D. Butler 1908-7-4 67 Siskiyou near mouth of Shasta River Comment
  SEINET9594958  Euphorbia crenulata G. D. Butler 1910-4-22 1220 Siskiyou Kidder Creek. Comment
  UC796613  Euphorbia crenulata Roxana S. Ferris and Laura Lorraine Jun 12 1948-Jun 16 1948 11849 Siskiyou 1.5 mi e (below) Gazelle Mountain grade summit 1417 Comment
  HSC72193  Euthamia occidentalis J. P. Smith 1976-9-5 8985 Siskiyou In Scott Valley 671 Comment
  CAS-BOT-BC413902  Fallopia convolvulus R. E. Frenkel 1963-7-13 249 Siskiyou On west side of Everitt Memorial Highway, 0.4 mile north of McCloud River RR crossing near Mount Shasta 1176 Comment
  UCD98900  Fallopia japonica T. C. Fuller 1963-8-26 11152 Siskiyou Dunsmuir Grade, Hwy 99 to Mt. Shasta City, 0.5 mi. n. of the limits of Dunsmuir. Comment
  CAS-BOT-BC278740  Festuca idahoensis Melissa A. Berry 1957-7-11 s.n. Siskiyou Parrott Mill Road, vicinity of Callahan 1005 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
  HSC76770  Festuca idahoensis K. T. Stillman 1976-8-7 374 Siskiyou Marble Mtn. Wilderness Area, Box Camp Mtn. 2195 Comment
  UC593516  Festuca idahoensis E. B. Babcock, G. L. Stebbins Jr. 1936-6-11 1962 Siskiyou about 2 mi s Sheep Rock (on highway from Bray to Weed, n slope of Mt. Shasta); Mt. Shasta 1249 Comment
  HSC19058  Festuca occidentalis J. O. Sawyer 1969-7-23 1185 Siskiyou Along road near Horse Range Creek. 1341 Comment
  POM198352  Festuca occidentalis Geo D. Butler 1910-7-12 1752 Siskiyou Shackleford Creek. 1220 Comment
  UCD66151  Festuca occidentalis A. A. Heller 1915-7-18 12123 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy. 1188 Comment
  UCD66261  Festuca roemeri H. S. Yates 1936-6-21 5826 Siskiyou N base of Wintoon Butte. 1219 Comment
  CAS-BOT-BC278637  Festuca subulata W. R. Dudley 1901-8-23 s.n. Siskiyou Salmon Mountains Comment
  HSC30499  Festuca subulata Frederick W. Oettinger 1969-9-4 1629 Siskiyou Marble Mtn. Wilderness Area, E side of Hancock Lake 1890 Comment
  CAS-BOT-BC278641  Festuca subulata Doris K. Kildale 1928-7-3 5453 Siskiyou Little North Fork, Salmon River on road from Forks of Salmon to Sawyers Comment
  CAS-BOT-BC447515  Fragaria virginiana var. platypetala John Thomas Howell 1937-7-23 13361 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC68992  Frangula californica Maralyn A. Renner 1980-7-28 2170 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  CAS-BOT-BC60016  Frangula purshiana Doris K. Kildale 1928-7-3 5440 Siskiyou Little N. Fork Salmon River near mouth. Comment
  CAS-BOT-BC59599  Frangula rubra subsp. rubra A. A. Heller 1905-6-22 8087 Siskiyou Between Igerna and Weed Comment
  CAS-BOT-BC223579  Fraxinus latifolia A. M. Vollmer; L. Beane 1951-6-2 46 Siskiyou Klamath River Highway, betw. U.S. 99 & Gottville Comment
  HSC36976  Fritillaria atropurpurea J. P. Smith 1974-5-26 7580 Siskiyou Along FS Rd. 47N03, 1/4 mi. NE of Chandler Glade 1768 Comment
  CAS-BOT-BC502842  Fritillaria atropurpurea Geo. D. Butler 1910-5-1 1261 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC506211  Fritillaria pudica Doris K. Kildale 1929-4-29 7595 Siskiyou Callahan Comment
  JEPS61952  Fritillaria recurva L. S. Smith 1917-5-10 Siskiyou near Sisson (Shasta National Forest); Shasta National Forest Comment
  POM109778  Fritillaria recurva Geo D. Butler 1910-4-17 1191 Siskiyou Near Yreka. Comment
  HSC403  Galium bifolium William J. Ferlatte 1967-7-9 698 Siskiyou Kidd Creek Trail 1982 Comment
  UC888781  Galium bolanderi John Thomas Howell 1937-7-26 13553 Siskiyou Caribou Gulch Comment
  JEPS52698  Galium bolanderi G. L. Stebbins Jr. 1963-7-7 6137 Siskiyou 5 mi ne Cecilville (on road to Callahan, Shadow Creek campsite) 975 Comment
  SBBG18787  Galium glabrescens subsp. glabrescens C. B. Hardham 1961-6-30 8012 Siskiyou White Mtn Comment
  RSA202646B  Galium glabrescens subsp. glabrescens F. Ehrendorfer, G. Ledyard Stebbins 1959-6-29 5915 Siskiyou W flank of Scott Mtn. 1921 Comment
  JEPS88934  Galium oreganum Joseph P. Tracy 1951-6-16 19504 Siskiyou at crossing of Takilma-Happy Camp Road (near State Line, summit of Siskiyous); Siskiyous Comment
  UC1475695  Galium serpenticum subsp. scotticum Clifton and Ground 1978-6-30 1661 Siskiyou near Forest House (close to town of Yreka); Yreka Quadrangle 1098 Comment
  UC1409413  Galium triflorum Frederick W. Oettinger 1968-8-7 436 Siskiyou e side Diamond Lake; Salmon Mountains, Marble Mountain Wilderness Area 1935 Comment
  RSA238875  Galium triflorum Frederick W. Oettinger 1968-8-7 436 Siskiyou Along the trail on the E side of Hancock Lake. Salmon Mtns. The High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1936 Comment
  CAS-BOT-BC182232  Garrya fremontii Edward Lee 1934-8-13 1058 Siskiyou Happy Camp to Waldo (Oregon) road, watershed of West Branch of Indian Creek, Klamath National Forest 1219 Comment
  CAS-BOT-BC182249  Garrya fremontii Dorothy Parker 1948-2-27 215 Siskiyou South slope, in Plowman's Valley 1219 Comment
  CAS-BOT-BC182265  Garrya fremontii Wm. F. Herrin 1921-10-10 s.n. Siskiyou Shasta Springs Comment
  HSC8396  Garrya fremontii C. B. Wolf 1927-8-27 1136 Siskiyou Mouth of Crawford Creek, Klamath river Comment
  JEPS95666  Garrya fremontii Vernon H. Oswald and L. Ahart 1999-7-5 9802 Siskiyou Gazelle-Callahan Hwy. 11.1 mi west of Gazelle, 0.4 mi east of summit of Gazelle Mtn.: T42N R7W Sect. 34, 3800 ft, oak woodland. Shrub at the base of a roadcut through decomposed mudstone. 1158 Comment
  SEINET3144595  Garrya fremontii G. D. Butler 1910-3-12 1125 Siskiyou Hill near Yreba 1067 Comment
  HSC38129  Gaultheria humifusa J. O. Sawyer 1976-10-23 2826 Siskiyou W of Little Duck Lake Comment
  RSA238353  Gaultheria ovatifolia Frederick W. Oettinger 1967-7-30 226 Siskiyou Semi-shaded granite cliffs southwest of Upper English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1921 Comment
  RSA238356  Gaultheria ovatifolia Frederick W. Oettinger 1968-9-8 785 Siskiyou Along the e. shore of English Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  SEINET3150044  Gayophytum diffusum G. D. Butler 1910-7-3 1630 Siskiyou Goosenest foothills 1219 Comment
  RSA68901  Gayophytum diffusum subsp. parviflorum A. E. Culbertson 1943-7-21 56 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi. S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts. 2000 ft. above Sacramento R. within 10 mi. of its headwaters to the west. 1657 Comment
  POM258617  Gayophytum heterozygum W. Bridge Cooke 1940-7-5 15299 Siskiyou Mount Shasta: along the road between Wagon Camp and Bear Springs. 1524 Comment
  UCD77734  Gayophytum humile Robert E. Preston 2002-6-20 1832 Siskiyou Klamath National Forest, Rainbow Mountain, W ridge, on E-facing slope 1911 Comment
  HSC16394  Gayophytum humile R. C. Wunner 1965-6-25 287 Siskiyou Lava Beds N.M., Indian Well Cave, Indian Well 1433 Comment
  SD76147  Gentiana calycosa Helen Witham 1969-10-4 546 Siskiyou Kangaroo Lake, Granite Cliffs, west face Comment
  UC1608325  Gentiana newberryi var. newberryi J. Kierstead 1990-8-9 90 130 A Siskiyou s side Mt. Eddy (Fawn Creek meadow, beyone end of Forest Service rd 40N42); Shasta-Trinity National Forests, Shasta Ranger Dist. 1828 Comment
  JEPS61409  Geranium carolinianum W. L. Jepson Jul 1894 13564 Siskiyou Sisson Comment
  UC722695  Geum triflorum C. L. Hitchcock, J. S. Martin 1939-7-9 5326 Siskiyou 1/2 mi se of King's Castle (Marble Mountains); Marble Mountains 1828 Comment
  POM91458  Geum triflorum var. ciliatum Geo. D. Butler 1910-6-19 1578 Siskiyou Goosenest Foothills. 1524 Comment
  POM65721  Gilia capitata Geo D. Butler 1910-5-8 1311 Siskiyou Near Yreka. Comment
  UC1409306  Gilia capitata subsp. capitata Frederick W. Oettinger 1968-8-16 536 Siskiyou Red Hill n Hancock Lake (High Lake Basins in the vicinity of English Peak, Marble Mountain Wilderness Area, Salmon Mountains, Western Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 2057 Comment
  UC879897  Gilia capitata subsp. capitata Alice Eastwood 1912-7-17 1165 Siskiyou Sisson Comment
  UCR143023  Glyceria borealis L. C. Wheeler 1934-6-26 2797 Siskiyou Siskiyou Mountains, Cottonwood Creek 838 Comment
  CAS-BOT-BC282717  Glyceria elata Wm. Bridge Cooke 1937-8-6 9209 Siskiyou Bear Springs, Mount Shasta 1524 Comment
  HSC22305  Glyceria elata J. O. Sawyer 1969-8-5 1958 Siskiyou Above the S Fork of Sugar Creek 1814 Comment
  HSC26629  Glyceria elata J. P. Smith, Steve Selva 1970-6-16 4061 Siskiyou 8 mi. W of Etna on road to Sawyers Bar. 1372 Comment
  RSA603021  Glyceria leptostachya L. C. Wheeler 1935-7-13 3663 Siskiyou Ager. 793 Comment
  RSA238996  Glyceria striata Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1234 Siskiyou South side of Pine Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1951 Comment
  RSA238998  Glyceria striata Frederick W. Oettinger 1969-8-16 1403 Siskiyou Wire Grass Meadow, English Lake Basin. Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1677 Comment
  UCD85212  Glyceria striata R. Tofsrud 1950-7-1 s.n. Siskiyou E side of Mt. Shasta. Comment
  RSA237631  Goodyera oblongifolia Frederick W. Oettinger 1968-8-5 416 Siskiyou W end of Charmaine Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1921 Comment
  SD204926  Gymnosteris parvula R. F. Thorne 1969-8-2 63392 Siskiyou Klamath Ranges region: Klamath National Forest, Salmon Mountains; Marble Mountain Wilderness, along trail to English Peak. 1159 Comment
  HSC22134  Hackelia micrantha J. O. Sawyer 1969-7-9 1200 Siskiyou Near C.C.C. road, N of Sugar Creek 1433 Comment
  HSC61913  Hackelia micrantha Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 Comment
  HSC810  Hackelia micrantha William J. Ferlatte 1967-7-26 737 Siskiyou Caribou Basin 1982 Comment
  RSA644033  Hackelia setosa Elaine Joyal, D. Mehlman 1988-6-25 1271 Siskiyou Happy Camp - Takilma road at turn-off to Bolan Lake 1524 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
  HSC44849  Hastingsia alba J. P. Smith, Steve Selva 1970-6-15 3988 Siskiyou 1 mi. W of junction of Hwy. 3 and Rd. 8 leading to Sugar Creek 1159 Comment
  JEPS30000  Hastingsia alba Rimo Bacigalupi, and L. Heckard, J. Weiler 1961-7-2 7986 Siskiyou n end town Mt. Shasta (Sisson) Comment
  UC454437  Hastingsia alba I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Comment
  CAS-BOT-BC123566  Hazardia whitneyi var. discoidea John Thomas Howell 1939-8-9 15236 Siskiyou Marble Mts. Shackleford Creek Trail south of Sky High Valley 1828 Comment
  HSC26895  Hazardia whitneyi var. discoidea J. P. Smith 1971-9-17 4786 Siskiyou On trail up to Little Duck lake 1829 Comment
  HSC61973  Hazardia whitneyi var. discoidea Al Hobart 13 Aug [year missing] Siskiyou Preston Peak 1982 Comment
  RSA215643  Hazardia whitneyi var. discoidea Gilbert Muth 1969-8-10 1344 Siskiyou Red Mountain Ridge. 2378 Comment
  CAS-BOT-BC306365  Helenium autumnale Edward Lee 1934-8-12 1051 Siskiyou Near mouth of Walker Creek, a tributary of the Klamath River (east end of Seiad Valley) 426 Comment
  UCD132684  Helenium autumnale T. C. Fuller 1960-8-23 4966 Siskiyou around 1 mile southeast of Greenview, Scott Valley. Comment
  HSC67016  Helenium bigelovii J. P. Smith, Steve Selva 1970-7-16 4410 Siskiyou Beaver Creek Campground. 823 Comment
  JEPS74421  Helenium bigelovii W. J. Ferlatte 1966-8-2 231 Siskiyou between campground and S. Fork of the Salmon River; Trinity Alps, Big Flat 1524 Comment
  UC897343  Helenium bigelovii John Thomas Howell 1939-8-2 14860 Siskiyou Spirit Lake Marble Mts. Comment
  UCR37839  Helenium bigelovii L. P. Janeway 1983-7-31 479 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  SD76158  Helenium bigelovii Helen V. Witham 1969-10-9 557 Siskiyou Scott Mountains: Kangaroo Lake, edge of bog. 2100 Comment
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Jun 3 2008
  UC336924  Helenium puberulum unknown 1878-7-1 Siskiyou near Mt. Shasta Comment
  CAS-BOT-BC314840  Helianthella californica var. shastensis L. E. Smith 1913-5-16 s.n. Siskiyou Dunsmuir Comment
  CAS-BOT-BC305570  Helianthus bolanderi Henry M. Pollard 1956-10-7 s.n. Siskiyou Klamath River bar on Spink's Ranch at Rogers Creek, Somes Bar Comment
  HSC77015  Hemizonella minima K. T. Stillman 1976-6-25 40 Siskiyou Marble Mtn. Wilderness Area, Marble Valley 1829 Comment
  RSA11163  Hemizonia fitchii C. B. Wolf 1927-8-26 1003 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  JEPS25817  Heracleum lanatum Geo. D. Butler 1908-8-4 463 Siskiyou Shackleford Creek, Log Lake 1524 Comment
  HSC43383  Hesperochiron pumilus Maralyn O'Meara 1974-5-26 459 Siskiyou Along USFS Rd. 47N03 1524 Comment
  UC201300  Heterotheca oregona var. oregona A. A. Heller 1917-9-7 12976 Siskiyou Comment
  RSA507769  Heterotheca oregona var. rudis J. C. Semple, S. Heard 1986-8-16 8496 Siskiyou SE of Etna. On road to Gazelle, just NE of CA 3, 9.8 km S or road to Kangaroo Lake. Comment
  CAS-BOT-BC312301  Heterotheca villosa var. minor Gilbert Muth 1966-7-25 453 Siskiyou Marble Rim 2072 Comment
  UCD133103  Heterotheca villosa var. minor J. M. Tucker; L. K. Mann, Sandra L. Holloway 1963-8-18 3753 Siskiyou southwestern ridge of Black Mountain (Black Marble Mountain), Marble Mountain Wilderness Area. 2133 Comment
  CAS-BOT-BC420707  Heuchera merriamii C. L. Hitchcock; J. S. Martin 1939-7-7 5285 Siskiyou Sanger Peak 1780 Comment
  HSC681  Heuchera merriamii William J. Ferlatte 1967-8-20 1061 Siskiyou Caribou Basin, Sawtooth Ridge, steep, N-facing slope 2043 Comment
  JEPS84335  Heuchera merriamii L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6408 Siskiyou 5 mi n Seiad Valley (head of Hell's Canyon); Hell's Canyon 1750 Comment
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Jul 30 2009
  HSC61970  Heuchera merriamii Al Hobart 16 Jul [year missing] Siskiyou Preston Peak Comment
  SJSU6495  Heuchera micrantha R. W. Trivelpiece 1972-6-14 111 Siskiyou Vann Cr near Bear Peak c. 15 mi SW of Happy Camp 1371 Comment
  JEPS104860  Heuchera pringlei Dean W. Taylor 1996-7-12 15793 Siskiyou Salmon Mountains; Patterson Creek drainage (about 5 air miles west of Etna); Klamath National Forest 1371 Comment
  CHSC1637  Heuchera rubescens var. glandulosa M. Yoder 1941-7-12 Siskiyou Castle Lake. 1981 Comment
  CAS-BOT-BC319697  Hieracium albiflorum Alice Eastwood; John Thomas Howell 1937-6-26 5045 Siskiyou Salmon Mts. near Taylor Creek Comment
  JEPS19799  Hieracium albiflorum Rimo Bacigalupi with S. Galen Smith 1957-6-26 6019 Siskiyou between White Ridge and Scott Camp Ridge (about 11 mi sw of Mt. Shasta town, along road to Gumboot Lake); canyon of the South Fork of the Sacramento River 1219 Comment
  RSA12623  Hieracium albiflorum C. B. Wolf 1934-7-5 5962 Siskiyou 3 6/10 mi. from Dry Lake Lookout on rd. to Horse Creek, Siskiyou Mts. 1982 Comment
  UCD77772  Hieracium albiflorum Robert E. Preston 2001-7-20 1686 Siskiyou Klamath National Forest, north slope of Rainbow Mountain, n of Hemlock Lake, 1712 Comment
  RSA142677  Hieracium gracile P. A. Munz 1960-8-22 24176 Siskiyou Panther Meadows, Mt. Shasta. 2317 Comment
  CAS-BOT-BC318646  Hieracium horridum Douglas Barbe 1959-7-4 519 Siskiyou North shore of Caribou Lake about 4 mi SW of Big Flat Camp, Klamath Nat'l Foest 2103 Comment
  UC337088  Hieracium horridum unknown 1888-9-12 Siskiyou side Mt. Shasta Comment
  CAS-BOT-BC316009  Hieracium nudicaule Lewis S. Rose 1937-7-26 37609 Siskiyou McCloud 1005 Comment
  UC618673  Hieracium nudicaule unknown 1938-7-29 11407 Siskiyou below Wagon Camp; Mount Shasta 1676 Comment
  HSC29196  Hieracium scouleri Frederick W. Oettinger 1969-8-9 1257 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: Tom's Lake Basin 1890 Comment
  RSA211520  Hieracium scouleri William J. Ferlatte 1966-8-3 275 Siskiyou Josephine Lake basin. 1677 Comment
  HSC29149  Hieracium triste Frederick W. Oettinger 1969-9-5 1673 Siskiyou High Lake Basins near English Peak; Marble Mtn. Wilderness Area: Upper English Lake 1799 Comment
  JEPS82483  Hieracium triste Gilbert Muth 1965-8-11 204 Siskiyou Black Mt. Marble Mt. Wilderness Area (meadow near summit, rim trail) 2011 Comment
  HSC22097  Holodiscus discolor J. O. Sawyer 1969-8-5 1949 Siskiyou Along S Sugar Creek 1921 Comment
  HSC29379  Holodiscus discolor Frederick W. Oettinger 1967-8-10 244 Siskiyou 1/8 mi SE of Tom Taylor Cabin 2027 Comment
  HSC40468  Holodiscus discolor J. O. Sawyer 1973-7-18 2554 Siskiyou 1524 Comment
  HSC4857  Holodiscus discolor J. O. Sawyer 1968-9-10 690 Siskiyou Below Young's Meadow on Clear Creek. 1372 Comment
  HSC99346  Holodiscus discolor J. O. Sawyer 1973-7-17 2546 Siskiyou Along trail to Wild Lake 1768 Comment
  CAS-BOT-BC152371  Holodiscus discolor var. discolor R. F. Thorne; Frederick W. Oettinger 1969-8-4 63384 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak, near crest of ridge above English Lake, along trail to Hancock Lake 1767 Comment
  CAS-BOT-BC150135  Holodiscus microphyllus var. glabrescens Elmer I. Applegate 1923-8-18 3873 Siskiyou Crest of Redshale Mountain, east side of Medicine Lake Comment
  POM112114  Hordeum brachyantherum Geo D. Butler 1910-6-15 1564 Siskiyou Yreka Creek Comment
  CAS-BOT-BC284768  Hordeum murinum subsp. glaucum Dorothy Parker 1949-5-22 76 Siskiyou At Etna, Scott Valley 896 Comment
  JEPS96981  Horkelia daucifolia Dean W. Taylor 1999-6-9 17238 Siskiyou Agate Flat, 0.3 miles S of Oregon State Line 1005 Comment
  UC555626  Horkelia daucifolia H. L. Mason 1931-5-9 5870 Siskiyou 3 mi s Weed Comment
  JEPS82693  Horkelia daucifolia Wayne Roderick 1984-6-6 Siskiyou about 5 mi s Gazelle 1021 Comment
  POM35294  Horkelia fusca subsp. parviflora E. B. Copeland 1903-9-5 3865 Siskiyou Igerna Comment
  HSC28087  Horkelia fusca var. brownii J. D. Ackerman, A. M. Montalvo 1973-7-20 105 Siskiyou 3.7 mi. W of McCloud along Hwy. 89 Comment
  CAS-BOT-BC536228  Horkelia fusca var. parviflora Annie M. Alexander; Louise Kellogg 1911-7-16 251 Siskiyou South Fork Salmon River 1524 Comment
  CAS-BOT-BC514284  Horkelia fusca var. pseudocapitata A. A. Heller 1916-6-23 12429 Siskiyou Near Black Butte N of Sisson 1127 Comment
  CAS-BOT-BC539434  Horkelia tridentata var. tridentata A. A. Heller 1916-8-24 12565 Siskiyou Near Sisson 1074 Comment
  HSC24693  Hosackia crassifolia J. O. Sawyer 1969-7-23 1171 Siskiyou Near Horse Range Creek 1341 Comment
  HSC98313  Hosackia oblongifolia D. E. Anderson 1962-8-5 2312 Siskiyou 3 mi. W of Bartlett, 1 mi. N of Shasta Co. line on Hwy. 89 Comment
  HSC2400  Hosackia oblongifolia William J. Ferlatte 1966-8-18 412 Siskiyou 3 mi. S of Big Flat 1585 Comment
  HSC69189  Hosackia oblongifolia var. oblongifolia Maralyn A. Renner 1980-8-31 2629 Siskiyou Twin Valley. 1494 Comment
  JEPS117555  Hymenoxys lemmonii Lowell Ahart, John Dittes 2010-7-30 16972 Siskiyou On moist soil of riparian terraces, Shasta Big Springs Ranch, 2.6 miles (air) northwest of Big Springs Lake, 3.9 miles (air) southeast of Grenada, 6.3 miles (air) northwest of Dwinnel Dam 778 Comment
  CAS-BOT-BC312850  Hymenoxys lemmonii A. A. Heller 1918-7-25 13083 Siskiyou Shasta Valley between Cazelle and Edgwood [Edgewood] Comment
  CAS-BOT-BC400988  Hypericum anagalloides John Thomas Howell 1939-8-5 15083 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  HSC22109  Hypericum anagalloides J. O. Sawyer 1969-7-18 1410 Siskiyou Head of S Russian Creek 1829 Comment
  HSC41039  Hypericum anagalloides J. O. Sawyer 1969-8-4 1911 Siskiyou N of High Lake 2043 Comment
  UCD110386  Hypericum perforatum subsp. perforatum S. P. Lynch 1975-6-20 1391 Siskiyou ca. 3 mi. S of Hwy. 96 on rd. to Scott's Bar along Scott River. Comment
  CAS-BOT-BC88627  Idahoa scapigera Peter H. Raven 1964-3-5 18763 Siskiyou Cultivated at Stanford, the seeds from Raven [coll. no.] 18397, at the Oreogn line on U.S. Highway 97. Comment
  RSA31633  Idahoa scapigera A. A. Heller 1929-5-4 14864 Siskiyou Near Edgewood. Comment
  CAS-BOT-BC206828  Iliamna bakeri Carl B. Wolf 1934-7-6 6029 Siskiyou Mt. Shasta, along Snow Line Road, 3 3/10 mi. from Mt. Shasta City 1524 Comment
  JEPS74449  Ipomopsis aggregata W. J. Ferlatte 1966-6-22 86 Siskiyou between the campground and Carter's Trinity Alps, South Fork of Salmon River 1524 Comment
  JEPS802  Ipomopsis aggregata W. L. Jepson 1937-7-30 18566 Siskiyou Poker Flat Siskiyou Mtns (headwaters of Indian Creek) 1584 Comment
  UCD118220  Ipomopsis aggregata Jack Major 1961-7-14 638 Siskiyou Wagon Camp Meadow, Mount Shasta. 1737 Comment
  JEPS116877  Ipomopsis congesta David Gowen 2007-7-11 778 Siskiyou Southeast of Lake Shastina and Hwy 97 on forest service road 42N15. Near rocky area on side trail, midway between railroad tracks and pumice mine. 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
  JEPS94072  Ipomopsis congesta subsp. congesta Vernon H. Oswald and Lowell Ahart 1998-9-8 9612 Siskiyou ca. 30 air mi. n. Burney (Junction of USFS 3 & 24 ca. 2.5 mi. w.-s.w of Hambone Butte) 1310 Comment
  JEPS17220  Iris chrysophylla J. W. Blankinship 1909-11-6 Siskiyou Dunsmuir Comment
  JEPS17362  Iris hartwegii Milo S. Baker 1893-8-6 Siskiyou Comment
Read comments
Jan 4 2012
  RSA366802  Iris hartwegii E. Yale Dawson 1948-7-16 5099 -a Siskiyou Grass Lake; Margins of Grass Lake, a drying, vernal lake north of Mount Shasta 1524 Comment
  HSC27648  Iris tenuissima Carl W. Mize 1972-6-8 5 Siskiyou Along the main trail 328 Comment
  JEPS82687  Iris tenuissima subsp. tenuissima Wayne Roderick 1984-6-5 Siskiyou ca. 12 air km. s.w. Mt. Shasta city (below Castle Lake) 1676 Comment
  CDA12116  Isatis tinctoria G. F. Hrusa 1990-4-2 7841 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
  SEINET6373100  Isatis tinctoria Barbara L. Wilson, Richard E. Brainerd 2010-1 16199 Siskiyou closed road near south edge of Black Butte, north of the dump. Comment
  CDA3761  Isatis tinctoria T. C. Fuller 1958-6-18 2902 Siskiyou 3 miles west of Thompson Creek, 13 miles east of Happy Camp. 0 Comment
  JEPS13902  Isatis tinctoria Geo. D. Butler 1909-6-13 804 Siskiyou Scott River Comment
  JEPS20537  Isoetes howellii Rimo Bacigalupi with S. Galen Smith and George Bacigalupi Jr. 1957-6-27 5971 Siskiyou 2 1/2 mi. n.w. Weed (s. tip of Shasta Valley, near headwaters of Shasta River); Shasta Valley 1005 Comment
  HSC28736  Isoetes occidentalis Frederick W. Oettinger 1967-8-21 303 Siskiyou Marble Mtn. Wilderness Area, on the NW side of Pine Lake 1921 Comment
  HSC85693  Ivesia pickeringii J. P. Smith 1980-8-24 10345 Siskiyou Klamath National Forest. SR 3, 2.7 miles from Scott Mtn. summit, at road to Carmen Lake 1341 Comment
  HSC74839  Juncus bolanderi J. P. Smith, J. O. Sawyer 1978-7-3 10008 Siskiyou Williams Point along the Klamath River S of Hwy. 96 Comment
  HSC71130  Juncus confusus Thomas W. Nelson, Jane P. Nelson, J. P. Smith 1978-7-24 4498 Siskiyou Along W side of Hwy. 3, just N of Scott Mtn. Summit 1616 Comment
  HSC30685  Juncus confusus Frederick W. Oettinger 1969-8-24 1526 Siskiyou Between English Lake main camp and 'Sundew Bog' W of camp 1799 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
  JEPS124474  Juncus effusus subsp. effusus Daniel Slakey 2015-7-14 161 Siskiyou South side of Copco Lake. Along Ager-Beswick Rd. just south of junction with Patricia Ave. Comment
  HSC77133  Juncus effusus subsp. pacificus L. P. Janeway 1983-9-23 694 Siskiyou Along edge of FS Rd. 18N33, 6 mi. from the Grayback Rd. 1433 Comment
  CHSC70199  Juncus mertensianus Jennifer Whipple 1976-7-2 1247 Siskiyou Mount Eddy, Klamath Mountains. Near Durney Lake. Along stream draining Durney Lake. 2133 Comment
  UC1265306  Juncus mertensianus Frederick W. Oettinger 1969-9-2 1599 Siskiyou Hemlock Forest, n side of English Peak, w Siskiyou County Salmon Mountains, Marble Mountain Wilderness Area 2164 Comment
  CAS-BOT-BC127622  Juncus mertensianus Jennifer Whipple 1976-7-8 1335 Siskiyou North slopes of Mount Eddy. Klamath Mountains. 2438 Comment
  JEPS63807  Juncus mexicanus B. C. Goldsmith 1916-9-29 31 Siskiyou Medicine Lake Mt. Hoffman 2042 Comment
  UCD141353  Juncus mexicanus Harold L. Lint; Mary E. Lint 1967-8-7 C 657 Siskiyou Panther Meadows on slopes of Mt. Shasta. Comment
  CHSC70198  Juncus nevadensis Jennifer Whipple 1978-10-6 2431 Siskiyou Mount Eddy, Klamath Mountains. Dale Creek drainage on the north face of Mount Eddy. 2255 Comment
  UC1265308  Juncus nevadensis Frederick W. Oettinger and R. F. Thorne 1969-8-6 1241 Siskiyou nnw of Pine Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1882 Comment
  UC1265303  Juncus occidentalis Frederick W. Oettinger 1969-8-24 1526 Siskiyou due w English Lake main camp (midway between English Lake main camp and Sundew Bog, vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area, English P 1798 Comment
  HSC30701  Juncus orthophyllus Frederick W. Oettinger 1968-9-6 741 Siskiyou Bear Meadow, midway between English Peak and Tom Taylor Cabin at head of Snowslide Gulch 1997 Comment
  RSA238912  Juncus orthophyllus Frederick W. Oettinger, Robert F. Thorne 1969-8-8 1299 Siskiyou At Sundew Bog on SE-facing gradual slope due W of the English Lake main camp. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1829 Comment
  RSA368350  Juncus trilocularis L. C. Wheeler 1934-6-22 2753 Siskiyou Cottonwood Creek, Siskiyou Mountains. Mt. Diablo Mer. 915 Comment
  CAS-BOT-BC80907  Juniperus Doris K. Kildale; J. W. Gillespie 1929-6-23 8039 Siskiyou Shasta River near Yreka 762 Comment
  HSC69032  Juniperus communis var. jackii Maralyn A. Renner 1980-7-28 2176 Siskiyou Above Pacific Crest Trail, near ridge 1799 Comment
  RSA13850  Juniperus communis var. montana L. C. Wheeler 1934-8-14 3123 Siskiyou 0.5 mile west White Mountain, Siskiyou Mountains 1921 Comment
  HSC92548  Juniperus communis var. saxatilis Jennifer Whipple 1976-7-8 1354 Siskiyou Along drainage into SW side of Dobkins Lake 2195 Comment
  CAS-BOT-BC81235  Juniperus occidentalis Edward Lee 1934-8-9 1014 Siskiyou Above Shasta Creek, 6 miles north of Yreka Comment
  HSC31502  Juniperus occidentalis Steve Selva, Roger Jensen 1974-8-24 45 Siskiyou S facing slopes along Road 8 to Sugar Lake Trail Comment
  CHSC91342  Juniperus occidentalis var. occidentalis Lowell Ahart; John Dittes 2005-6-9 12021 Siskiyou Small low hill, north fence boundary, on the east side of a poor rock fence, about 350 yards east of where cattle water in the Shasta River, about 3/5 mile (air) south of Highway 99/97 Cutoff, about 2 1/2 miles (air) east-southeast of Grenada. 774 Comment
  JEPS95663  Juniperus occidentalis var. occidentalis Vernon H. Oswald and L. Ahart 1999-7-5 9813 Siskiyou Gazelle Mtn. on road 41N03 1.0 mi southeast of Gazelle-Callahan Hwy.: T41N R7W Sect. 3, 5100 ft, yellow pine forest, serpentine substrate 1554 Comment
  POM281925  Juniperus occidentalis var. occidentalis Lyman Benson 1929-3-27 1075 Siskiyou Rocky slopes by Klamath River, Pacific Hwy Comment
  SEINET11056608  Juniperus occidentalis var. occidentalis D. Charlet, T. Charlet 1996-11-25 2340 Siskiyou Scott Mountains, Willow Creek, on road to Callahan 5 road miles SW of Gazelle. 933 Comment
  CAS-BOT-BC56358  Kalmia microphylla subsp. microphylla W. B. C. 1938-7-21 11296 Siskiyou Panther Creek Heather Meadow. Hudsonian. 2286 Comment
  HSC4848  Kalmia polifolia J. O. Sawyer 1968-7-2 366 Siskiyou Upper drainage of Joe Creek 1677 Comment
  NY790342  Keckiella lemmonii D. C. Michener 1980-8-2 3765 Siskiyou Klamath Mountains. Along CA 96 along the Klamath River between Swillup and Coon Creeks, ca. 17 miles south of Happy Camp. 304.8 Comment
  RSA293293  Keckiella lemmonii D. C. Michener 1980-8-3 3773 Siskiyou Klamath Mtns. Along the Klamath River and CA 96, 8.2 miles east of Happy Camp. 400 Comment
  HSC67645  Kelloggia galioides J. P. Smith, Steve Selva 1970-7-17 4473 Siskiyou Below Kangaroo Lake. 1890 Comment
  CDA43045  Kochia scoparia Michael Pitcairn 2014-9-11 s.n. Siskiyou Butte Valley; Dorris. Comment
  CAS-BOT-BC499654  Kopsiopsis strobilacea J. H. Thomas 1954-5-14 4184 Siskiyou Salmon Mountains, Klamath National Forest (sw part of county). Near South Fork of Salmon River, 5--9 mi SE of Cecilville, along N side of river 1219 Comment
  UC1409490  Kopsiopsis strobilacea Frederick W. Oettinger 1967-8-21 299 Siskiyou The High Lake Basins in the Vicinity of English Peak Marble Mountain Wilderness Area. Approx. 20 yd south of Tom Taylor Cabin--Pine Lake trail heading towards Pine Lake. Comment
  CAS-BOT-BC340376  Kyhosia bolanderi Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  CAS-BOT-BC340379  Kyhosia bolanderi Dr. E. B. Copeland August 15, 19 3 3882 Siskiyou Sisson 1066 Comment
  OBI55442  Lactuca biennis David J. Keil 1992-7-20 23502 Siskiyou Klamath NF. Along Forest Rd 46N64, 2.8 mi W of Scott river rd Comment
  JEPS24813  Lagophylla ramosissima Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6824 Siskiyou 7 mi e of Callahan 1127 Comment
  CAS-BOT-BC341704  Lagophylla ramosissima Louis C. Wheeler 1934-6-2 2608 Siskiyou Klamath National Forest. Oak Knoll R. S. 670 Comment
  POM215857  Lamium amplexicaule Louis C. Wheeler 1935-4-18 3429 Siskiyou Greenhorn Creek, Siskiyou Mts, Mt. Diablo Mer. 1006 Comment
  CAS-BOT-BC204928  Lathyrus Clarence R. Quick 1959-6-19 59 -07 Siskiyou 3 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  CAS-BOT-BC204985  Lathyrus jepsonii var. californicus Geo. D. Butler 1910-7-6 1644 Siskiyou Shackleford Creek Comment
  SBBG15261  Lathyrus nevadensis D. Myrick 1961-6-21 302 Siskiyou Deer Camp Rd above Oak Knoll Ranger Station, Klamath River, 19 mi W of Hwy 99 1371 Comment
  SBBG3355  Lathyrus nevadensis H. and M. Dearing 1938-6-29 2193 Siskiyou Mt Shasta Wagon Camp 1828 Comment
  RSA3772  Lathyrus pauciflorus subsp. brownii A. A. Heller 1927-5-14 14378 Siskiyou About the base of black Butte near the western base of Mount Shasta. Comment
  HSC60891  Leersia oryzoides Ken Stillman 1976-8-24 433 Siskiyou Along Klamath River at Williams Point. 366 Comment
  UC1034611  Lepidium campestre Douglas Barbe 1955-6-29 31 Siskiyou 1 mi e Callahan; Klamath Mountains 975 Comment
  RSA105500  Lepidium campestre G. D. Barbe 1955-6-29 31 Siskiyou 1 mile east of Callahan 976 Comment
  CHSC4167  Lepidium perfoliatum R. Carter 1966-5-15 398 Siskiyou McConnahue Gulch, 4.5 mi. SE of Etna, in driveway of Parker home; along W side of driveway. 914 Comment
  CHSC43653  Lepidium perfoliatum Vernon Oswald 1986-5-29 2069 Siskiyou Hwy 97 between Dorris and Macdoel, 47.5 mi ne of Weed. Roadside. 1219 Comment
  CDA3822  Lepidium perfoliatum T. C. Fuller 1958-6-19 1825 Siskiyou Railroad yard, Montague. 0 Comment
  HSC64815  Lepidium virginicum J. P. Smith, Steve Selva 1970-6-15 3924 Siskiyou 10 mi. NW of Forks of Salmon Comment
  POM364701  Leptosiphon bolanderi Christopher Davidson 1975-6-5 2661 Siskiyou just above gate on special service rd branching SE off rd from Gazelle to Callahan 9.3 mi. W of Gazelle. 1471 Comment
  POM43381  Leptosiphon bolanderi Geo D. Butler 1910-4-14 1172 Siskiyou Dry hills, Yreka. Comment
  CAS-BOT-BC341902  Lessingia nemaclada Elmer I. Applegate 1923-9-7 3948 Siskiyou Doggett Creek, Klamath River canyon Comment
  RSA151805  Lessingia nemaclada H. K. Sharsmith, Francia Chisaki 1959-8-20 4738 Siskiyou Wildcat Canyon road ca. 4 miles west of Callahan. 1067 Comment
  RSA245197  Lessingia nemaclada J. P. Smith, J. O. Sawyer 1972-9-14 5801 Siskiyou Miners Creek Road just south of French Creek Road between Callahan and Etna 915 Comment
  CAS-BOT-BC342103  Leucanthemum vulgare Louis C. Wheeler 1934-8-20 3198 Siskiyou Klamath National Forest. W. Fork Beaver Cr. 1127 Comment
  CAS-BOT-BC58260  Leucothoe davisiae W. B. Stephens 1922-7-9 s.n. Siskiyou Salmon Lake. Comment
  HSC4874  Leucothoe davisiae J. O. Sawyer 1968-6-18 209 Siskiyou Above S Russian Creek, below the Blake's Fork confluence. 1463 Comment
  UC1190122  Leucothoe davisiae Ira L. Wiggins 1955-7-27 13563 Siskiyou Salmon-Trinity Alps Primitive Area, Caribou Lake Caribou Lake; Salmon-Trinity Alps Primitive Area, Caribou Lake 2042 Comment
  RSA183694  Lewisia cotyledon Gilbert Muth 1965-8-5 306 Siskiyou Steep alpine slope, N slope of Marble Rim, near Black Mtn Comment
  HSC74920  Lewisia cotyledon var. cotyledon J. P. Smith, Jennifer Whipple 1978-7-2 9965 Siskiyou Klamath National Forest, ridge trail E of Cook and Green Pass 1341 Comment
  CAS-BOT-BC444039  Lewisia cotyledon var. cotyledon M. B. Dunkle 1945-7-19 9227 Siskiyou Klamath Natl. Forest, Marble Mts. Sky-High basin Comment
  CAS-BOT-BC444052  Lewisia cotyledon var. cotyledon Geo. D. Butler 1990-7-20 960 Siskiyou Highland Mine 1828 Comment
  CAS-BOT-BC444083  Lewisia leeana Doris K. Kildale 1928-7-4 5525 Siskiyou Summit of divide between Salmon River & Scott Valley Comment
  UC1408827  Lewisia leeana Frederick W. Oettinger 1968-8-22 594 Siskiyou slope betweeen English Peak and Diamond Lake; Salmon Mountains, High Lake Basins, Marble Mountain Wilderne 2194 Comment
  UC454264  Lewisia leeana I. J. Condit 1911-7-27 Siskiyou Castle Lake 1981 Comment
  RSA760740  Lewisia leeana R. F. Thorne, Frederick W. Oettinger 1969-8-4 63370 Siskiyou Klamath National Forest, Salmon Mountains, Marble Mountain Wilderness Area, high lake basins in the vicinity of English Peak Comment
  CAS-BOT-BC444193  Lewisia nevadensis G. J. Muth 1969-8-8 1294 Siskiyou Gap Meadow, Boulder Peak Ridge 2286 Comment
  SJSU2553  Lewisia nevadensis H. L. Buckalew 1962-7-9 Siskiyou Poker Flat c. 3 mi W of junction of Indian Cr with W Branch Indian Cr, Siskiyou Mts 1082 Comment
  CAS-BOT-BC444423  Lewisia rediviva Elmer I. Applegate 1937-5-13 11092 Siskiyou South of the Flenner Ranch, Lava Beds National Monument Comment
  CAS-BOT-BC283814  Leymus cinereus L. E. Smith 1915-7-1 s.n. Siskiyou Bray Comment
  CAS-BOT-BC283731  Leymus condensatus Louis C. Wheeler 1934-9-22 3292 Siskiyou Klamath National Forest 518 Comment
  HSC61140  Ligusticum californicum Al Hobart 1967-8-8 Siskiyou El Capitan Comment
  UC875079  Ligusticum grayi A. A. Heller 1915-8-26 12237 Siskiyou Mt. Eddy 1828 Comment
  HSC22274  Lilium kelleyanum J. O. Sawyer 1969-7-26 1580 Siskiyou SE facing slope near Sugar Creek 1700 Comment
  CAS-BOT-BC509383  Lilium kelleyanum John Thomas Howell 1937-7-21 13191 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC62308  Lilium pardalinum subsp. wigginsii Al Hobart 1967-8-8 Siskiyou Youngs Valley Comment
  CAS-BOT-BC133020  Lilium washingtonianum subsp. purpurascens Albert M. Vollmer; Ira L. Wiggins 1940-7-5 8 Siskiyou On grade across from canyon from Yellow Dog Peak, between Sawyer's Bar and Etna 1463 Comment
  CHSC109946  Limnanthes alba Peter F. Zika 2012-5-14 25855 Siskiyou Cascade Range Highlands. I-5 southbound, one road mile n of (and above) exit 724 for Castella. 665 Comment
  CDA40099  Linanthus harknessii T. C. Fuller 1960-6-3 4614 Siskiyou East bank of Toad Lake, ca. 7 miles north of Bartle. 0 Comment
  HSC28213  Linnaea borealis subsp. longiflora Carl W. Mize 1972-6-23 94 Siskiyou Along trail by Camp Three. 976 Comment
  CAS-BOT-BC416405  Linnaea borealis subsp. longiflora H. A. Thomas; J. H. Thomas 1954-7-23 4462 Siskiyou Salmon-Trinity Mts., about 6 miles SE of Cecilville. Vicinity of Blind Horse Creek. 1036 Comment
  RSA0087560  Linnaea borealis subsp. longiflora E. K. Balls 1949-7-9 13937 Siskiyou 8.3 miles from Etna on road to Sawyer's Bar. 1006 Comment
  UC61193  Linnaea borealis var. longiflora W. A. Setchell, C. C. Dobie 1902-7-22 Siskiyou Hearst Castle; Mount Shasta, Hearst Castle Comment
  RSA68921  Listera convallarioides A. E. Culbertson 1943-8-12 36 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 miles southwest of Mt. Shasta on north side of a 6600 eastern spur of Trinty Mountains; 2000 above Sacramento River within 10 air miles of its headwaters to the west 1657 Comment
  SACT002879  Lithocarpus densiflorus Geo Dobbins 1961-6-19 Siskiyou 5 miles west of Oregon Caves National Comment
  POM267244  Lithocarpus densiflorus var. densiflorus Marion Ownbey, Fred G. Meyer 1940-7-8 2231 Siskiyou Siskiyou Mountains, 17 miles north of Happy Camp. Comment
  CAS-BOT-BC36540  Lithocarpus densiflorus var. echinoides Carl B. Wolf 1931-9-2 2393 Siskiyou 4 miles above junction of McCloud Road with the Pacific Highway 1188 Comment
  POM193472  Lithocarpus densiflorus var. echinoides J. B. Feudge 1928-8-11 1909 Siskiyou On west slope of Mt. Shasta. 1128 Comment
  CAS-BOT-BC432316  Lithophragma campanulatum John Thomas Howell 1937-7-22 13300 Siskiyou S Fork of Salmon River near Big Flat 1524 Comment
  UC375363  Lithophragma glabrum Geo. D. Butler 1909-3-14 558 Siskiyou near Yreka; near Yreka Comment
  RSA184753  Lithophragma glabrum Gilbert Muth 1966-7-8 366 Siskiyou Marble Valley Meadow, Marble Mountains. 1793 Comment
  JEPS47483  Lithophragma parviflorum Geo. D. Butler 1909-5-1 687 Siskiyou Klamath Hills Comment
  HSC43055  Lithospermum californicum Ken Stillman 1976-8-24 446 Siskiyou E and N slopes of Williams Point 366 Comment
  RSA30609  Lithospermum californicum Lincoln Constance, R. Rollins 1942-5-12 2899 Siskiyou Klamath River 12 miles S of Happy Camp. 305 Comment
  RSA605517  Lithospermum californicum L. C. Wheeler 1959-7-24 7589 Siskiyou Salmon & Marble Mountains Region: Ridge between Crawford Creek Gulch. Comment
  UC1299483  Lithospermum californicum Freed W. Hoffman 1948-7-9 2664 Siskiyou <between Siskiyou Mt. summit and Oregon-Claifornia state line> Waldo-Happy Camp Road Comment
  UC196955  Lolium multiflorum Geo. D. Butler 1909-6-7 828 Siskiyou along creek near Yreka Comment
  CAS-BOT-BC269145  Lolium perenne A. A. Heller 1921-7-5 13564 Siskiyou At Abrams Lake, near the town of Mt. Shasta Comment
  JEPS16108  Lomatium californicum Geo. D. Butler 1909-6-6 799 Siskiyou near Yreka Comment
  UC165419  Lomatium dissectum var. multifidum Geo. D. Butler 1910-5-7 1303 Siskiyou hill near Yreka Comment
  HSC77068  Lomatium macrocarpum K. T. Stillman 1976-7-7 158 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  JEPS80513  Lomatium macrocarpum Gilbert Muth 1966-7-22 440 Siskiyou Marble Rim, Marble Mt. Wilderness Area Marble Mt. Wilderness Area, Marble Rim 2194 Comment
  UC106273  Lomatium macrocarpum Brandegee July 1887 Siskiyou Edgewood Comment
  UCR37581  Lomatium macrocarpum L. P. Janeway 1983-7-3 372 Siskiyou Ridgetop NW of Poker Flat. (Siskiyou crest) 1585 Comment
  JEPS25670  Lomatium macrocarpum Rimo Bacigalupi with Mr. and Mrs. Van Deventer of Fort Dick 1959-7-10 7313 Siskiyou jeep rd. between Poker Flat and Twin Valley (ridge top marking Del Norte-Siskiyou Co. boundary); Siskiyou Mts., Del Norte-Siskiyou Co. boundary 1664 Comment
  SDSU2236  Lomatium marginatum D. F. Howe 1977-7-5 4995 Siskiyou 15 miles southeast of Granada. 1219 Comment
  RSA60802  Lomatium nevadense I. L. Wiggins 1950-5-28 12361 Siskiyou Margins of Carmen Lake, ca. 1.5 miles E of Scott Mtn road. 1738 Comment
  HSC46187  Lomatium nevadense Jennifer Whipple 1977-4-30 1883 Siskiyou Scott Valley near Weston Gulch 854 Comment
  CHSC88401  Lomatium nudicaule Jenny Marr 1993-7-1 160 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  UC106270  Lomatium nudicaule Brandegee July, 1887 Siskiyou Edgewood Comment
  POM82359  Lomatium nudicaule Geo. D. Butler 1909-5-7 745 Siskiyou Yreka Comment
  JEPS28834  Lomatium peckianum Lincoln Constance and Emil DiFulvio 1962-4-17 3751 Siskiyou 5.2 mi. s. Yreka 792 Comment
  LA53040  Lomatium peckianum Lincoln Constance; Emil diFulvio 1962-4-17 3751 Siskiyou 5.2 mi. S of Yreka 792 Comment
  RSA30660  Lomatium peckianum Lincoln Constance, R. Rollins 1942-5-14 2918 Siskiyou 1 mile E of Yreka 762 Comment
Read comments
Apr 26 2007
  UC640623  Lomatium peckianum Alice Eastwood and John Thomas Howell 1934-4-20 1785 Siskiyou 4 mi. n. Weed Comment
  CAS-BOT-BC211228  Lomatium tracyi R. C. Barneby 1954-5-17 11534 Siskiyou Scott Mts. 5 miles above Callahan 1249 Comment
  JEPS101782  Lomatium triternatum var. triternatum Dean W. Taylor 1999-6-9 17256 Siskiyou Agate Flat, 0.3 miles S of Oregon State Line 1005 Comment
  POM67575  Lonicera ciliosa Geo. D. Butler 1910-8-1 1808 Siskiyou Yreka Creek. Comment
  HSC69201  Lonicera conjugialis Maralyn A. Renner 1980-7-24 2080 Siskiyou Lily Pad Lake 1768 Comment
  JEPS13679  Lonicera conjugialis W. L. Jepson 1907-7-6 2858 Siskiyou Cudahay Trail to Klamath River (from Marble Mt.); Marble Mt., Klamath River Comment
  RSA238542  Lonicera conjugialis Frederick W. Oettinger 1967-8-3 231 Siskiyou West side of Little Hancock Lake; Hancock Lake Basin. The Salmon Mtns. High lake basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 2043 Comment
  UC618771  Lonicera conjugialis W. Bridge Cooke 1938-7-1 11136 Siskiyou above Bear Spring; Mount Shasta Comment
  RSA150569  Lonicera conjugialis Lee W. Lenz 1961-6-23 24363 Siskiyou Summit of Siskiyou Mts., road from Happy Camp and O'Brien. Comment
  JEPS16301  Lonicera tatarica W. T. Mooney 1903-5-21 Siskiyou Yreka Comment
  POM27601  Lotus humistratus Geo. D. Butler 1909-6-23 911 Siskiyou Goosenest Foothills. Comment
  RSA406194  Lotus humistratus Louis C. Wheeler 1934-6-22 2757 Siskiyou Cottonwood Creek, Siskiyou Mountains. Mt. Diablo Mer. 915 Comment
  JEPS95832  Lotus nevadensis var. nevadensis Vernon H. Oswald and L. Ahart 1999-7-5 9812 Siskiyou Gazelle Mtn. on road 41N03 0.6 mi southeast of Gazelle-Callahan Hwy.: T41N R7W Sect. 3, 5000 ft, yellow pine forest, serpentine substrate 1524 Comment
  UC1299179  Lotus nevadensis var. nevadensis Freed W. Hoffman 1950-7-14 3628 Siskiyou Baldy Mountain, w Siskiyou County North Coast Ranges Comment
  UC80949  Lotus nevadensis var. nevadensis Katharine Brandegee Jul 1887 Siskiyou Sisson Comment
  UC163678  Lotus purshianus var. purshianus Geo. D. Butler 1908-8-4 391 Siskiyou Head of Shackleford Creek Comment
  UC860313  Luetkea pectinata Louis C. Wheeler 1934-8-9 3089 Siskiyou Head of Jaynes Canyon; Siskiyou Mts. 1981 Comment
  RSA0084100  Luina hypoleuca R. W. Spjut, Paul Burchstead 2008-6-12 16345 Siskiyou Klamath Region. Klamath National Forest: along North Fork of the Salmon River, between Somes Bar and Forks of the Salmon 491 Comment
  RSA237533  Luina hypoleuca Frederick W. Oettinger 1968-8-2 367 Siskiyou Northeast of Diamond Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2082 Comment
  UC725972  Lupinus A. A. Heller 1929-5-4 14860 Siskiyou Yreka Shasta River (Shasta River) Comment
  SEINET10832926  Lupinus albicaulis subsp. shastensis Katherine L. Morris 1973-5-25 Morris 272 A Siskiyou 20.7 miles e of mccloud on hwy 89 in an area of libocedrus, yellow pine, white Fir, and mixed conifers Comment
  SEINET10964911  Lupinus albicaulis subsp. shastensis David B. Dunn 1971-8-15 Dunn 18141 Siskiyou 0.5 mile e of mccloud ranger station on hwy 89. Yellow pine forest Comment
  UC1034059  Lupinus albicaulis var. shastensis W. Bridge Cooke 1941-9-5 16282 Siskiyou vicinity MacBride Springs, Mt. Shasta (Mt. Shasta); , vicin MacBride Springs Comment
  POM230566  Lupinus albicaulis var. shastensis L. E. Smith 1913-6-18 375 Siskiyou Road between Sisson and Castle lake. Comment
  RSA11951  Lupinus albicaulis var. shastensis Elmer I. Applegate 1923-9-7 3853 Siskiyou Doggett Ridge, south slope of the Siskiyou Mountains. Comment
  SEINET10484530  Lupinus albicaulis var. shastensis Emmel 1974-7-20 EMMEL 519 Siskiyou Slope 0.6 air miles ese of dry lake lookout, along road between dry lake Lookout and deer camp, siskiyou mountains. T47n,r9w,sec.19 se 1/4. Montane Conifer forest. In open areas of recently logged forest. Perennial. 2.5 Ft High. 2.5 Ft wide. Abundant. Plebejus icarioides ssp & lycaeides argyrognomon Ricei adults closely associated with this plant (lepidoptera; lycaenidae) 1890 Comment
  UC15787  Lupinus albifrons T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  CAS-BOT-BC195965  Lupinus albifrons var. albifrons K. L. Chambers 1967-6-22 2850 Siskiyou About 500 ft above and east of the freeway (Hwy. 5) at the Hilts exit, Siskiyou Pass 1097 Comment
  UC727141  Lupinus arbustus A. A. Heller 1938-7-12 15260 Siskiyou on the old U.S. Highway #97 border of a meadow e Deer Mountain; e of Deer Mountain 1402 Comment
  UC84436  Lupinus argenteus Katharine Brandegee July 1887 Siskiyou Edgewood 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
  SEINET7042784 Image available Lupinus bicolor A. G. Vestal 1955-5-17 s.n. Siskiyou Scott Valley, 0.8 mile north of Etna on route 3. Etna quadrangle UTM Zone 10, 508563mE, 4590750mN. Comment
  UC147327  Lupinus breweri Harley P. Chandler June, 1901 1590 Siskiyou near Marble Mountain; North Coast Ranges, near Marble Mountain 1981 Comment
  CAS-BOT-BC215170  Lupinus croceus R. C. Barneby 1954-5-17 11533 Siskiyou 5 miles above Callahan, Scott Mountains 1249 Comment
  CAS-BOT-BC215182  Lupinus croceus Alice Eastwood 1912-8-30 1991 Siskiyou Mount Eddy Comment
  CAS-BOT-BC215200  Lupinus croceus John Thomas Howell 1937-7-29 13667 Siskiyou Scott Mountain between Trinity and Siskiyou counties Comment
  RSA47662  Lupinus croceus var. pilosellus Roxana S. Ferris 1948-6-12 s.n. Siskiyou At Mule Creek crossing of Scott Mountain Road. 1524 Comment
  JEPS64895  Lupinus klamathensis Geo. D. Butler 1909-5-8 709 Siskiyou Shasta Valley Comment
  UC157008  Lupinus klamathensis Geo. D. Butler 1910-5-15 1349 Siskiyou Greenhorn Mountain 1066 Comment
  SEINET10485424  Lupinus klamathensis Jeffrey Huber 1971-6-9 Huber 258 Siskiyou 3 mi. N of weed, on us hwy 97; s facing 20 degree slope; roadside; in pinus Ponderosa, p. Jeffreyi, and artemisia tridentata and purshia. 1128 Comment
  HSC92500  Lupinus latifolius subsp. latifolius Jennifer Whipple 1977-7-22 2049 Siskiyou Dale Creek drainage on the N face of Mount Eddy 2195 Comment
  HSC75194  Lupinus latifolius subsp. viridifolius K. T. Stillman 1976-7-7 165 Siskiyou Marble Mountain Wilderness Area 1982 Comment
  JEPS83254  Lupinus latifolius var. viridifolius Geo. D. Butler 1908-8-7 373 Siskiyou Whiskey Camp Independence Creek (Independence Creek) 1676 Comment
  UC146922  Lupinus latifolius var. viridifolius Harley P. Chandler June, 1901 1623 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges, near Marble Mountain 2133 Comment
  UC157028  Lupinus lepidus var. lobbii Geo. D. Butler 1910-9-11 1867 Siskiyou Weed Comment
  UC82256  Lupinus lepidus var. medius Mrs. R. M. Austin Siskiyou Lava Beds near Pot Hole Springs; Lava Beds near Pot Hole Springs Comment
  UC563132  Lupinus lepidus var. sellulus Elmer I. Applegate 1923-8-17 3846 Siskiyou w end Medicine Lake; w end of Medicine Lake 1981 Comment
  UC85087  Lupinus lepidus var. sellulus J. W. Congdon 1900-8-13 Siskiyou Shasta Comment
  UC904774  Lupinus lepidus var. sellulus W. Bridge Cooke 1949-8-26 25674 Siskiyou along logging road above Bolam Station; Mount Shasta Comment
  JEPS80547  Lupinus lepidus var. sellulus Gilbert Muth 1965-8-12 211 Siskiyou 2/3 up meadow on backside Black Mt. (Marble Mt. Wilderness Area); , backside of Black Mt. 2133 Comment
  HSC41182  Lupinus leucophyllus John Rehling 1976-5-29 406 Siskiyou Near Etna in Scott Valley. Comment
  UCD107955  Lupinus leucophyllus Freed W. Hoffman 1948-7-8 2417 Siskiyou Scott Bar Lodge, Scott River. Comment
  CHSC20640  Lupinus luteolus Robert A. Schlising 1963-6-6 2609 Siskiyou Along road to Hilt from Hwy. 99, in northern part of county. 914 Comment
  RSA413776  Lupinus luteolus Bonnie C. Templeton 1960-6-21 8531 Siskiyou Between California State line and the Agricultural Inspection Station Comment
  POM228984  Lupinus nanus var. apricus Louis C. Wheeler 1935-5-18 3499 Siskiyou Siskiyou Mountains; Yreka Creek. 854 Comment
  UCD109311  Lupinus obtusilobus A. A. Heller 1920-8-12 13516 Siskiyou a short distance below Horse Camp, Mt. Shasta; near the upper limit of the Canadian zone. Comment
  UCD19433  Lupinus onustus Charlotte K. Glenn 1967-1 204 Siskiyou Castle Lake. 1584 Comment
  SEINET11091470 Image available Lupinus sellulus A. A. Heller 1905-6-1 7933 Siskiyou Between Upper Soda Spring and Shasta Retreat Comment
  SEINET5039261 Image available Lupinus shastensis Unknown 1905-1 8024 Siskiyou Shasta Springs Comment
  RSA60626  Luzula comosa I. L. Wiggins 1950-5-28 12362 Siskiyou Margins of Carmen Lake, ca. 1.5 miles E of Scott Mtn road. 1738 Comment
  HSC632  Luzula parviflora William J. Ferlatte 1967-7-26 748 Siskiyou Caribou Basin, ridge W of Big Caribou Lake 2134 Comment
  RSA0015990  Lythrum californicum Louis C. Wheeler 1934-10-11 3316 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mountains. 671 Comment
  SEINET2121893  Machaeranthera canescens M. L. Carson 1968-12-8 1293 Siskiyou US Highway 97, 1.4 mi N of Macdoel and 8.5 mi S of Dorris, between the highway and the railroad 1250 Comment
  CAS-BOT-BC27563  Machaeranthera canescens var. shastensis Edward Lee Greene 1876-1-1 s.n. Siskiyou unspecified Comment
  CAS-BOT-BC343999  Madia elegans Lewis S. Rose 1925-7-27 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC343996  Madia elegans Louis C. Wheeler 1934-6-28 2809 Siskiyou Beaver Creek at West Fork, Siskiyou Mts. 914 Comment
  UCD135763  Madia elegans Bruce G. Baldwin 1986-7-20 616 Siskiyou junction of California State Highway 96 and U.S. Forest Service Road 46N52 (west of town of Klamath River). Comment
  CAS-BOT-BC344547  Madia exigua Louis C. Wheeler 1934-6-2 2607 Siskiyou Oak Knoll Ranger Station, Klamath River, Siskiyou Mts. 670 Comment
  CAS-BOT-BC334667  Madia glomerata Louis C. Wheeler 1934-8-24 3216 Siskiyou Trapper Creek, Siskiyou Mountains 1859 Comment
  POM362231  Madia glomerata L. C. Wheeler 1934-8-24 3216 Siskiyou Trapper Creek, Siskiyou Mountains 1860 Comment
  UC54073  Madia gracilis H. M. Hall and E. B. Babcock Jun 1903 4055 Siskiyou near Sisson; Mount Shasta 1066 Comment
  RSA78948  Mahonia aquifolium E. K. Balls, P. C. Everett 1952-10-12 4500 Siskiyou 1.7 mi. w. of boundary of Lava Beds Nat l Monument on road from Indian Well Ranger Station to Tennant. 1372 Comment
  POM97669  Mahonia repens Geo. D. Butler 1910-8-1 1807 Siskiyou Yreka Creek. Comment
  HSC44868  Maianthemum racemosum subsp. amplexicaule J. P. Smith 1973-5-5 6445 Siskiyou Trail to the Siskiyou cypress stand, off the Cook and Green Pass Rd. Comment
  RSA264979  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1975-7-28 s.n. Siskiyou Near Cook and Green Pass, near Seiad Valley 1524 Comment
  UC1714366  Marrubium vulgare W. Bridge Cooke 1940-8-2 15392 Siskiyou Wagon Camp road above Howard (Mount Shasta); Mount Shasta Comment
  JEPS107440  Medicago lupulina Lowell Ahart, John Dittes 2005-6-10 12063 Siskiyou Along a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada 776 Comment
  HSC1870  Medicago lupulina L. C. Wheeler 1934-10-7 3313 Siskiyou Oak Knoll Ranger Station, Klamath River 671 Comment
  CAS-BOT-BC271153  Melica Melissa A. Berry 1957-7-8 s.n. Siskiyou South Russian Creek at Power House 822 Comment
  JEPS83577  Melica aristata Dean Wm. Taylor, Glenn L. Clifton, R. Doug Stone 1987-8-6 9239 Siskiyou Porcupine Lake 1304 Comment
  LA12117  Melica aristata H. S. Yates; 1936-6-21 5833 Siskiyou 1 mi SW of Signal Butte 1341 Comment
  CAS-BOT-BC271215  Melica bulbosa K. T. Stillman 1976-6-15 68 Siskiyou Marble Mountain Wilderness Area 1828 Comment
  UCR37824  Melica bulbosa K. T. Stillman 1976-7-15 248 Siskiyou Marble Mountain Wilderness Area, Scott Bar 15' Q. 1951 Comment
  CHSC91602  Melica californica G. Douglas Barbe; P. Hiatt, M. Keffer 1980-6-5 2810 Siskiyou Cascade Ranges. Mt. Shasta Reforestation area, north of Mt. Shasta city on Everitt Memorial Hwy to Panther Meadows ski area. 1097 Comment
  JEPS104956  Melica harfordii Dean W. Taylor 1996-7-10 15773 Siskiyou head of Facey Gulch on Hayden Ridge; easterly watershed divide of Scott Valley (about 10 air miles E of Etna); Klamath National Forest 1173 Comment
  CAS-BOT-BC264196  Melica subulata John Thomas Howell 1939-8-3 14953 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  JEPS44110  Mentzelia albicaulis W. B. and V. G. Cooke 1965-7-12 35170 Siskiyou below railroad crossing (Along Bolam Road); Mt. Shasta Comment
  RSA59505  Mentzelia veatchiana E. K. Balls 1950-5-16 14709 Siskiyou Caldwell Butte, east slope, near base. Lava Beds National Moneument Comment
  CAS-BOT-BC428551  Micranthes aprica A. A. Heller 1915-7-15 12081 Siskiyou Mt. Eddy 2072 Comment
  CAS-BOT-BC428543  Micranthes aprica Stuart K. Harris 1960-6-28 21595 Siskiyou Vicinity Taylor Lake Comment
  SJSU6538  Micranthes ferruginea R. W. Trivelpiece 1973-6-28 158 Siskiyou Big Duck L, Scott R drainage c. 7.5 mi W of Callahan 2042 Comment
  CAS-BOT-BC349377  Microseris nutans H. M. Hall 1909-7-1 8676 Siskiyou Salmon Mountain. Salmon River 1615 Comment
  UC726472  Mimulus arvensis A. A. Heller 1919-6-20 13526 Siskiyou Metcalf's Comment
  UC446430  Mimulus arvensis T. H. Gilbert Jun 15 1899-Jul 15 1899 Siskiyou Scott River Valley Comment
  RSA264957  Mimulus breweri Gilbert Muth 1975-7-29 s.n. Siskiyou Near Kangaroo Mtn. Near Seiad Valley. 1756 Comment
  HSC45047  Mimulus breweri J. O. Sawyer 1978-6-19 3257 Siskiyou Marble Mountain Wilderness Area; along trail in Bug Gulch 1524 Comment
  JEPS5710  Mimulus breweri Dorothy Parker 1953-8-9 577 Siskiyou Salmon Mountain 1920 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
  JEPS94070  Mimulus floribundus Vernon H. Oswald and Lowell Ahart 1998-7-21 9347 Siskiyou n.e. Weed (e. of Grass Lake on s. side of Tennant Rd. 0.2 mi. s.e. of Old State Hwy. to Bray and on the e. side of the intermittent stream draining Dry Lake) 1402 Comment
  UC164473  Mimulus layneae Geo. D. Butler 1910-6-19 1585 Siskiyou Goosenest foothills 1524 Comment
  UC725963  Mimulus layneae A. A. Heller 1925-6-25 13895 Siskiyou 3 mi n Mt. Shasta (State Highway) Comment
  UCR72553  Mimulus layneae D. M. Thompson 1992-6-29 1023 Siskiyou Near Black Butte, midway between Mt. Shasta city and Weed. 1.2 mi north of I-5 interchange (Summit Drive / Deetz Road/Truck Village Drive) along N part of Truck Village Drive (E side of I-5). At summit of hill overlooking railway junction at end of pavement 1200 Comment
  HSC67758  Mimulus moschatus John Palmer 1980-8-15 994 Siskiyou NE of Seiad Low Gap on spur of F.S. Rd. 46N50 1098 Comment
  RSA237536  Mimulus moschatus Frederick W. Oettinger 1967-8-20 290 Siskiyou Just below spring at Tom Taylor Cabin. The Salmon Mountains. The High Lake Basins in the vicinity of English Peak. Marble Mountains Wilderness Area. 2049 Comment
  UCD122801  Mimulus moschatus John M. Tucker; Louis K. Mann 1963-7-4 3690 Siskiyou beside road from Etna to Sawyer's Bar, ca. 4.7 miles (by road) southwest of Etna. Comment
  JEPS3167  Mimulus nanus var. nanus George D. Butler 1908-6-29 60 Siskiyou Cherry Creek 1066 Comment
  JEPS32001  Mimulus nanus var. nanus W. B. and V. G. Cooke 1963-7-10 34263 Siskiyou n side Mt. Shasta (Bolam Road) Comment
  UC1063560  Mimulus nanus var. nanus M. H. Mitchell 1936-5-22 51 Siskiyou Black Crater Modoc Lava Beds Nat'l Monument, Dorris Quadrangle Comment
  HSC69356  Mimulus primuloides Maralyn A. Renner 1980-8-21 2585 Siskiyou Kidd Creek 2043 Comment
  RSA45338  Mimulus primuloides var. linearifolius Dorothy Parker 1946-8-18 s.n. Siskiyou Rail Creek. 122 Comment
  HSC104138  Mimulus pulsiferae Dana York 2012-7-21 3128 Siskiyou Klamath National Forest, 470 m E of Red Butte, along the road and springs around Bee Camp 1720 Comment
  HSC32164  Mimulus pulsiferae J. O. Sawyer 1970-6-17 2205 Siskiyou Dry slopes N of Sugar Lake 1799 Comment
  CAS-BOT-BC174699  Minuartia howellii R. C. Barneby 1954-5-16 11523 Siskiyou 7 mi. n.-e. of Fort Jones 1005 Comment
  HSC81672  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1980-7-17 6081 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  UC852385  Minuartia nuttallii subsp. gregaria Alice Eastwood 1912-8-30 2017 Siskiyou Mount Eddy Comment
  CAS-BOT-BC433016  Mitella diversifolia Geo. D. Butler 1910-5-23 1391 Siskiyou Humbug Mountain 1219 Comment
  CAS-BOT-BC433019  Mitella diversifolia Clarence R. Quick 1959-6-19 59 -18 Siskiyou 6.7 miles south of Four Corners on ridge south-east of Seiad Valley Comment
  HSC20240  Mitella pentandra Dorothy Parker 1949-7-10 333 Siskiyou Near Paradise Lake, Salmon Mountain 1982 Comment
  HSC96407  Mitella pentandra Gordon Leppig, J. Kalt 1996-7-9 356 Siskiyou Klamath National Forest, Russian Wilderness, cirque W of Little Duck Lake 2200 Comment
  UCD98356  Moehringia macrophylla Jeff Kennedy 1994-4-24 1 Siskiyou Four-acre private parcel, 1.1 air miles W of the Ctrl. Mt. Shasta exit from Interstate 5; 0.5 air miles W of Mt. Shasta State Fish Hatcher, S of W end of Melo Road (off of Old Stage Road); W of and adj. to Wagon Creek; E of ranch with large stock pond. 1042 Comment
  UC1980587  Monardella C. Rose Broome, James L. Reveal, Darin Reveal, Crissie Cagle 1978-8-6 2322 Siskiyou CA highway 96, 0.8 mi W of Hamburg, at Mill Creek, opposite the highway from the Klamath River. Comment
  HSC22250  Monardella glauca J. O. Sawyer 1969-8-4 1833 Siskiyou Above Sugar Lake 2134 Comment
  HSC76693  Monardella odoratissima K. T. Stillman 1976-8-7 208 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  HSC92974  Monardella odoratissima Jennifer Whipple 1976-8-21 1732 Siskiyou S face of Mt. Eddy draining into N Fork of the Sacramento River 2378 Comment
  RSA233677  Monardella odoratissima Robert F. Thorne, Frederick W. Oettinger 1969-8-10 38994 Siskiyou Mount Shasta National Forest; south slope of Mt. Shasta at base of boulders. 2378 Comment
  CAS-BOT-BC220368  Monardella odoratissima subsp. pallida Geo. B. Grant 1902-9-8 s.n. Siskiyou Mt Shasta, Horse Camp Comment
  UC2035852  Monardella odoratissima subsp. pallida W. Bridge Cooke 1940-7-5 15248 Siskiyou Along the road between Wagon Camp and Bear Springs (and near those two meadows); Mount Shasta Comment
  RSA215625  Monardella odoratissima subsp. pallida Gilbert Muth 1969-8-6 1196 Siskiyou Boulder Park. 2530 Comment
  CAS-BOT-BC220266  Monardella sheltonii Dr. E. B. Copeland 1903-6-7 3497 Siskiyou Hornbrook Comment
  SEINET10829416  Monardella siskiyouensis A. Graff 1993-7-24 Graff 355 Siskiyou Klamath National Forest. Hwy. 96, .45-2.8 miles east from junction with Hwy. 263, on right roadside. Infrequent on bare serpentine. End of bloom. Comment
  JEPS14831  Monotropa hypopitys Ranger Morgan Aug. 1913 Siskiyou Happy Camp Klamath Forest Comment
  HSC78183  Montia chamissoi L. P. Janeway 1983-7-17 422 Siskiyou Poker Flat, upper portion of meadow 1524 Comment
  CAS-BOT-BC445109  Montia linearis Ella D. Cantelow 1953-5-2 s.n. Siskiyou 16 mi. north of Yreka Comment
  CDA23981  Montia linearis Don Shaw 1974-5-14 Siskiyou Emigrant Creek Ranches, Greenview, Quartz Valley. 0 Comment
  HSC49917  Montia linearis Maralyn O'Meara 1974-5-25 410 Siskiyou On Rd. 8, ~4.7 mi. W of junction with Hwy. 3 1159 Comment
  CAS-BOT-BC94428  Montia parviflora R. C. Wenk 2005-7-16 258 Siskiyou Trinity Alps, South Fork of the Salmon River. South end of Big Flat Meadow 1499 Comment
  HSC29444  Montia parvifolia Frederick W. Oettinger 1968-8-5 399 Siskiyou Marble Mtn. Wilderness Area, between English Peak and Diamond Lake 2073 Comment
  CAS-BOT-BC262676  Muhlenbergia asperifolia A. A. Heller 1918-7-25 13082 Siskiyou Shasta Valley between Gazelle and Edgwood Comment
  CAS-BOT-BC262679  Muhlenbergia asperifolia Roxana S. Ferris; Laura Lorraine 1941-8-11 10502 Siskiyou Grass Lake Station, on U. S. Highway 97 1554 Comment
  CAS-BOT-BC267047  Muhlenbergia filiformis A. A. Heller 1914-8-25 11704 Siskiyou Near Deetz station, near Black Butte 6 miles N of Sisson 1158 Comment
  SEINET10599825  Muhlenbergia filiformis A. Arthur Heller 1914-8-25 Heller 11704 Siskiyou Plentiful in moist sandy soil near Deetz station 6 miles north of Sisson, completely covering the ground in places on the edges of thickets and burnt-over land. 1158 Comment
  HSC30600  Muhlenbergia montana Frederick W. Oettinger 1969-8-16 1389 Siskiyou Marble Mtn. Wilderness Area, SW of Wire Grass Meadow, near Upper English Lake. 1677 Comment
  UC711877  Muhlenbergia richardsonis Roxana S. Ferris and Laura Lorraine 1941-8-11 10497 Siskiyou on US Hwy 97 Grass Lake Station 1554 Comment
  CHSC88118  Myosurus minimus Jenny Marr 1993-7-1 128 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  CHSC66541  Nama lobbii Vernon H. Oswald 1996-7-12 8001 Siskiyou Everitt Memorial Hwy.(A10) E of Mt. Shasta city between mileposts 6 and 7. 1798 Comment
  UC107202  Nama lobbii Wm. M. Canby in company with Profs. C. S. Sargent and John Muir 1897-9-7 207 Siskiyou Mt. Shasta Comment
  UCD106100  Navarretia capillaris Herbert L. Mason 1948-7-17 13597 Siskiyou Eastern Grass Lake. Comment
  UC908380  Navarretia divaricata W. Bridge Cooke 1938-7-29 11405 Siskiyou Mt. Shasta 1524 Comment
  RSA297047  Navarretia sinistra John F. Emmel 1974-7-16 511 Siskiyou Along Clear Creek, Youngs Valley 1402 Comment
  JEPS120221  Navarretia sinistra subsp. sinistra Julie Kierstead Nelson 2011-8-23 2011 -43 Siskiyou Eastern Klamath Mountains, The Eddys. North side of Fawn Creek, 2 miles NE of Gumboot Lake Comment
  UC880876  Nemophila heterophylla Louis C. Wheeler 1935-6-1 3538 Siskiyou Yreka Creek , Yreka Creek (Siskiyou Mts.) 853 Comment
  CAS-BOT-BC219535  Nemophila parviflora Clarence R. Quick 1958-6-17 58 -23 Siskiyou Near Black Bear Summit south of Sawyer's [Sawyers] Bar on ridge road to Cecilville 1356 Comment
  CAS-BOT-BC230561  Nemophila parviflora var. austiniae Geo. D. Butler 1910-4-24 1231 Siskiyou Quartz Valley Comment
  HSC93079  Nemophila pedunculata Jennifer Whipple 1976-7-2 1278 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  SEINET6174145  Nicotiana attenuata G. D. Butler 1910-7-1 1618 Siskiyou Dry field near Yreka. Comment
  RSA14376  Nicotiana bigelovii Elmer I. Applegate 1923-9-5 3939 Siskiyou Diablo Spring, Klamath River, 12 mile below mouth of Shasta River. Comment
  UCSB24730  Noccaea fendleri Keefe, Joseph 1967-7-11 Siskiyou Along trail to Little Castle Lake, 1.0 mile southeast of Castle Lake, 10 miles south of the city of Mt. Shasta 1828 Comment
  CAS-BOT-BC60593  Noccaea fendleri subsp. glauca R. C. Wenk 2005-7-19 338 Siskiyou Along Pacific Crest Trail, between Deadfall Lakes and pass below Mount Eddy. 2407 Comment
  HSC32254  Noccaea fendleri subsp. glauca J. O. Sawyer 1971-6-29 2394 Siskiyou Elk Hole 1524 Comment
  HSC62466  Noccaea fendleri subsp. glauca Ruby Van Deventer 1959-7-9 Siskiyou Twin Valley Comment
  CAS-BOT-BC60587  Noccaea fendleri subsp. glauca L. B. Kildale 1929-5-31 9154 Siskiyou Salmon River. Comment
  POM143809  Noccaea fendleri subsp. glauca E. B. Copeland 1903-8-18 3905 Siskiyou Mt Eddy. Comment
  UC707026  Nothocalais troximoides G. L. Stebbins Jr. with A. A. Beetle 1942-5-30 3255 Siskiyou 5 mi w Gazelle Comment
  HSC58839  Nothochelone nemorosa Marvin Butler 1971-7-29 228 Siskiyou Near El Capitan Lake, close to the town of Cave Junction 1524 Comment
  HSC61504  Nothochelone nemorosa Ruby Van Deventer 1939-7-18 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  UC1238906  Nothochelone nemorosa Freed W. Hoffman 1950-7-11 3494 Siskiyou Cedar Camp Road 30.1 mi from Klamath Highway (western Siskiyou County); North Coast Ranges, Cedar Camp Road Comment
  SEINET5345412  Oenothera villosa var. strigosa G. Butler 2010-7-30 1799 Siskiyou Yreka Creek Comment
  UC4246  Olsynium douglasii var. douglasii F. W. Hooper 1897-3-27 Siskiyou Little Shasta Comment
  HSC96301  Oreostemma alpigenum Gordon Leppig 1998-8-14 1013 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake Fen, cirque W of Little Duck Lake 2200 Comment
  HSC4911  Oreostemma alpigenum var. andersonii J. O. Sawyer 1968-7-22 549 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  SEINET5708888 Image available Oreostemma alpigenum var. andersonii Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7704 Siskiyou Scott Mts. Collected along Road 17, 12.7 miles SW from the intersection of I-5 and Stewart Springs road.; Scott Mountains 2036 Comment
  UC1608317  Oreostemma alpigenum var. andersonii J. Kierstead 1990-7-18 90 -103 Siskiyou Gumboot Creek 100 yd s Forest Service Rd 40N26 (s side of mt.); Shasta-Trinity National Forests, Mt. Shasta Ranger Dist., Mt 1676 Comment
  JEPS24818  Oreostemma alpigenum var. andersonii Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-2 6834 Siskiyou just below and n of Scott Mtn. Road summit; Scott Mtn. 1615 Comment
  CAS-BOT-BC500189  Orobanche fasciculata R. E. Frenkel 1963-7-13 216 Siskiyou On Everitt Memorial Highway, 1.0 mi N of McCloud River RR crossing, near Mt. Shasta 1219 Comment
  CAS-BOT-BC500190  Orobanche fasciculata John Thomas Howell 1939-8-4 15028 Siskiyou Marble Mts: between Elk Mt. and Marble River Comment
  UC1299157  Orobanche uniflora subsp. occidentalis Freed W. Hoffman 1950-7-13 3767 Siskiyou Baldy Lookout, western Siskiyou County. Comment
  JEPS30255  Orogenia fusiformis Al Hobart 1963-6-8 Siskiyou extreme n.w. Siskiyou co., Siskiyou Mts., Poker Flat 1536 Comment
  CAS-BOT-BC458075  Orthilia secunda Annie M. Alexander; Louise Kellogg 1949-7-28 5877 Siskiyou Marble Mountains: Sky High Valley 1767 Comment
  JEPS83863  Orthilia secunda Wayne Roderick Jul 1976 Siskiyou Siskiyou Mts. Vicinity of Cook and Green Pass 1463 Comment
  UC1037439  Orthilia secunda Douglas Barbe 1955-7-28 305 Siskiyou Klamath Mountains about 0.5 mile west of Scott Mountain Forest Camp. 1645 Comment
  CAS-BOT-BC266620  Orthocarpus cuspidatus C. G. Pringle 1882-9-1 s.n. Siskiyou Mountains about the headwaters of the Sacramento River 2133 Comment
  CHSC1813  Orthocarpus cuspidatus subsp. copelandii K. Jaekel 1932-6-26 Siskiyou Mt. Eddy. 1219 Comment
  UC164397  Orthocarpus cuspidatus subsp. copelandii Geo. D. Butler 1908-8-4 53 Siskiyou head of Shackleford Creek Comment
  RSA183717  Orthocarpus cuspidatus subsp. copelandii Gilbert Muth 1965-7-30 138 Siskiyou Marble Mtns. Near top of marble rim. Comment
  UC903488  Orthocarpus cuspidatus subsp. cuspidatus Dorothy Parker 1948-7-11 101 Siskiyou near Beswick (Shovel Creek); , near Beswick 1011 Comment
  SEINET13756769  Orthocarpus cuspidatus subsp. cuspidatus G. D. Butler 1910-6-19 1584 Siskiyou Goosenet foothills 1524 Comment
  JEPS4515  Orthocarpus imbricatus Alice Eastwood 1912-7-15 1066 Siskiyou McCloud Comment
  HSC4880  Osmorhiza berteroi J. O. Sawyer 1968-7-10 456 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  JEPS15927  Osmorhiza berteroi W. L. Jepson July, 1894 14253 Siskiyou Sisson Comment
  UC1400368  Osmorhiza berteroi Frederick W. Oettinger 1969-7-10 952 Siskiyou due w English Lake (high lake basins in vicinity of English Peak, w Siskiyou Co.); Salmon Mountains, Marble Mountain Wilderness Area 1760 Comment
  RSA184689  Osmorhiza berteroi Gilbert Muth 1966-7-14 396 Siskiyou Trail to Black Mountain, Marble Mountains. Comment
  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
  HSC4882  Osmorhiza occidentalis J. O. Sawyer 1968-7-23 617 Siskiyou Near Big Flat Campground, Trinity Alps Primitive Area 1524 Comment
  UCD77896  Oxyria digyna Robert E. Preston 2002-7-14 1934 Siskiyou Klamath National Forest, N slope of Rainbow Mountain 1981 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
  UCD88589  Panicum acuminatum var. fasciculatum R. Tofsrud 1948-8-1 s.n. Siskiyou Edge of Happy Camp. Comment
  JEPS94100  Panicum capillare Vernon H. Oswald and Lowell Ahart 1998-9-8 9606 Siskiyou Julia Glover Flat on USFS 3 ca. 6 air mi. w. of Mosquito Lake and Whitehorse Flat Reservoir; Julia Glover Flat 1112 Comment
  RSA585249  Panicum capillare L. C. Wheeler 1934-9-20 3288 Siskiyou Lumgrey Creek; Siskiyou Mountains 671 Comment
  CAS-BOT-BC94880  Parnassia californica R. C. Wenk 2006-9-3 564 Siskiyou Coffee Creek Road, Big Flat Meadow, S end of meadow above S Fork of Salmon River 1508 Comment
  CAS-BOT-BC175603  Parnassia palustris Alice Eastwood 1912-8-30 2045 Siskiyou Mount Eddy Comment
  CAS-BOT-BC175618  Parnassia palustris Milo S. Baker 1926-8-8 254 -'26 Siskiyou Meadow bet. Red Mt. & Granite Peak 2194 Comment
  UC637039  Paspalum distichum Edward Lee 1934-8-10 1019 Siskiyou near Hamburg (south bank of Klamath River between McKinney and Parkerhouse creeks); s bank of Klamath River 609 Comment
  JEPS46471  Pastinaca sativa Rimo Bacigalupi 1959-7-1 7210 Siskiyou along irrigation ditch in front of Mt. Shasta Union High School (outskirts of town); Mt. Shasta (town) 1097 Comment
  RSA459070  Pastinaca sativa L. C. Wheeler 1935-7-4 3653 Siskiyou Yreka 800 Comment
  CAS-BOT-BC202860  Paxistima myrsinites Doris K. Kildale 1928-8-18 6448 Siskiyou Head of north fork Salmon River at Finley's Upper Camp Comment
  HSC68882  Paxistima myrsinites Maralyn A. Renner 1980-9-1 2756 Siskiyou Trail from Doe Flat to Trout Camp 1098 Comment
  POM87427  Paxistima myrsinites Geo. D. Butler 1909-4-11 656 Siskiyou Shasta Retreat. Comment
  SEINET13355128  Pectocarya pusilla G. D. Butler 1910-5-8 1306 Siskiyou Near Yreka. Comment
  HSC91018  Pedicularis attollens Jennifer Whipple 1977-7-21 2014 Siskiyou Near Durney Lake 2073 Comment
  CAS-BOT-BC266642  Pedicularis bracteosa John Thomas Howell 1937-7-25 13457 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC266636  Pedicularis bracteosa L. R. Short 1933-8-7 113 Siskiyou Marble Mountains, Klamath Forest 1828 Comment
  JEPS10413  Pedicularis bracteosa var. flavida Geo. D. Butler 1908-8-5 42 Siskiyou Summit above Cold Spring 1828 Comment
  HSC36885  Pedicularis densiflora J. P. Smith 1974-5-26 7547 Siskiyou Along FS Rd. 47N03 1524 Comment
  RSA238824  Pedicularis flavida Frederick W. Oettinger 1968-8-3 378 Siskiyou Base camp near Diamond Lake. Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2012 Comment
  HSC104276  Pedicularis racemosa Samantha E. Andres 2016-7-3 12 Siskiyou Marble Mountains; meadow above Little Elk Lake 1829 Comment
  UC164256  Pedicularis racemosa Geo. D. Butler 1910-7-7 1650 Siskiyou Shackleford Creek 1219 Comment
  UC886715  Pedicularis racemosa Louis C. Wheeler 1934-8-2 3022 Siskiyou head Jaynes Canyon; Siskiyou Mountains 2072 Comment
  UCD123293  Pedicularis racemosa K. M. Meyer; A. Townesmith 2007-7-31 181 Siskiyou Shasta-Trinity National Forest, 8.1 miles on NF Rd. 17, off Hwy 97. 1607 Comment
  CAS-BOT-BC67689  Pellaea brachyptera Geo. D. Butler 1908-7-20 248 Siskiyou Humbug Mountain Comment
  RSA605525  Pellaea brachyptera L. C. Wheeler 1959-7-26 7609 Siskiyou Marble Mountain, near summit of Ukonom Mountain 1402 Comment
  UC775207  Pellaea brachyptera W. H. Wagner Jr. 1949-4-26 4608 Siskiyou Memorial Hwy (dirt road) from Shasta Springs to Sand Flats (w side of base of Mt Shasta); Mt Shasta Comment
  SEINET9628403 Image available Pellaea brachyptera William Bridge Cooke 1941-9-5 16275 Siskiyou Common on the bluff above MacBride Springs. 1524 Comment
  UC371164  Pellaea brachyptera G. D. Butler 1908-7-20 248 Siskiyou w side Humbug Mt Comment
  RSA0006214  Penstemon W. C. Cusick 1902-1 2928 Siskiyou Siskiyou Mts., Waldo-Crescent City rd., 1/4 mi. S. of Cal. Line [Siskiyou or Del Norte counties]. Comment
  JEPS7201  Penstemon anguineus Geo. D. Butler 1909-7-2 935 Siskiyou Highland Mine 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
  SD62067  Penstemon anguineus Darley F. Howe 1965-8-8 4125 Siskiyou Saddle, south side of Little Gray Back, Klamath National Forest 1402 Comment
  RSA238751  Penstemon anguineus Frederick W. Oettinger, Robert F. Thorne 1969-8-4 1171 -a Siskiyou Near outlet, south side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1936 Comment
  HSC77075  Penstemon azureus K. T. Stillman 1976-7-7 153 Siskiyou Marble Mtn. Wilderness Area 1982 Comment
  JEPS84078  Penstemon azureus L. R. Heckard with J. Hickman et al. 1986-7-17 6512 Siskiyou n slope of Condrey Mt. 1960 Comment
  RSA505404  Penstemon azureus R. C. Bacigalupi, S. Galen Smith, G. Bacigalupi 1957-6-26 5964 Siskiyou Canyon of the South Fork of the Sacramento River,at its source in the region immediately south of Mt. Eddy, along very poor mountain road to Gumboot Lake. 1433 Comment
  SEINET3160236  Penstemon californicus G. D. Butler 1910-7-12 1761 Siskiyou Shackleford Creek 1219 Comment
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Jul 30 2019
  UC1187077  Penstemon cinereus David D. Keck 1940-6-13 5174 Siskiyou 9 mi s Macdoel (on U.S. 97 between Dorris and Weed); s of Macdoel, btw Dorris and Weed 1463 Comment
  HSC49948  Penstemon cinicola G. L. Clifton, Terry Griswold 1979-7-22 8920 Siskiyou Near Little Mt. Hoffman, close to the town of Macdoel 613 Comment
  HSC69369  Penstemon cinicola J. O. Sawyer, J. Cole 1980-7-20 3790 Siskiyou E side of Grouse Hill 2134 Comment
  CLARK-A1528-1220  Penstemon davidsonii John C. Roos 1948-9-1 3983 Siskiyou Etna Comment
  HSC91150  Penstemon davidsonii Jennifer Whipple 1976-7-25 1583 Siskiyou N slopes of Mt. Eddy 2561 Comment
  UC1751242  Penstemon davidsonii var. davidsonii Annie M. Alexander and Louise Kellogg 1911-6-28 201 Siskiyou Wildcat Creek Comment
  HSC19127  Penstemon deustus J. O. Sawyer 1969-7-9 1262 Siskiyou Summit above S Sugar Lake. 2378 Comment
  POM256009  Penstemon deustus subsp. deustus Marion Ownbey, Ruth P. Ownbey 1938-7-19 1750 Siskiyou 2.5 miles northwest of Dry Lake Lookout, summit of the Siskiyou Mtns. Comment
  RSA15787  Penstemon deustus subsp. deustus Carl B. Wolf 1927-8-26 1012 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  RSA47613  Penstemon deustus subsp. deustus Roxana S. Ferris, Laura Lorraine 1948-6-12 11728 Siskiyou French Creek logging road west of Callahan. 1067 Comment
  UC1177927  Penstemon deustus var. pedicellatus Francia Chisaki and Gene B. Newcomb 1958-6-22 1155 Siskiyou at base of Black Butte just e Highway #99; at base of Black Butte Comment
  SD61023  Penstemon deustus var. pedicellatus Darley F. Howe 1964-8-4 3932 Siskiyou 9 mi. from entrance to Modoc Nat. Forest. Lava Bed Nat. Monument 2042 Comment
  UC1017723  Penstemon deustus var. suffrutescens Marion Ownbey and Ruth P. Ownbey 1938-7-19 1750 Siskiyou 2.5 mi nw Dry Lake Lookout (summit of Siskiyou Mts.); Siskiyou Mts. Comment
  NY609827  Penstemon deustus var. suffrutescens F. W. Pennell 1940-7-16 26161 Siskiyou Route 99; Hornbrook 944.9 Comment
  CHSC1862  Penstemon gracilentus V. Holt 1932-7-23 Siskiyou Mt. Shasta Flats. 1219 Comment
  UC454776  Penstemon gracilentus I. J. Condit 1911-7-22 Siskiyou trail to Horse Camp Mt. Shasta, trail to Horse Camp 2438 Comment
  UCSB6167  Penstemon humilis Phillips, Priscilla 1960-6-13 Siskiyou Rt. 97; 11 miles north of Weed; Lower slopes of Mt. Shasta 1097 Comment
  HSC61874  Penstemon laetus subsp. sagittatus Ruby Van Deventer 1938-7-31 Siskiyou Poker Flat 1585 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
  HSC41806  Penstemon laetus subsp. sagittatus Brent Whiteley 1975-6-17 3 Siskiyou Somes Bar area 235 Comment
  HSC60085  Penstemon laetus subsp. sagittatus M. A. Baker 1978-5-20 573 Siskiyou 3 km N of Somes Bar Comment
  SBBG21851  Penstemon newberryi D. Myrick 1964-7-25 949 Siskiyou Shasta Ski Bowl Hwy, Mt Shasta 1524 Comment
  POM299514  Penstemon newberryi subsp. berryi Marion Ownbey, Fred G. Meyer 1940-7-6 2204 Siskiyou West side of Cayenne Ridge at summit, Marble Mountain. Comment
  RSA68868  Penstemon newberryi subsp. newberryi A. E. Culbertson 1943-6-24 88 Siskiyou Castle Lake, 5434', in a north facing cirque with an abrupt 1000' backwall, 14 miles SW of Mt Shasta on N side of a 6600' eastern spur of Trinity Mts. 2000' above Sacramento R within 10 air miles of its headwaters to the west. Comment
  JEPS74527  Penstemon newberryi var. berryi W. J. Ferlatte 1966-6-22 75 Siskiyou Josephine Lake Basin Trinity Alps 1676 Comment
  JEPS84079  Penstemon newberryi var. berryi L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6354 a Siskiyou 1/2 mi SE of Red Butte (SW of Cook and Green Pass; 7 mi NNE of Seiad Valley) 1730 Comment
  JEPS5707  Penstemon newberryi var. newberryi W. L. Jepson Jul 1894 21414 Siskiyou Muir Peak ((Black Butte), Sisson Comment
  NY627305  Penstemon newberryi var. newberryi E. B. Copeland 1903-7-17 3510 Siskiyou Mt. Shasta 1828.8 Comment
  NY627342  Penstemon newberryi var. newberryi A. A. Heller 1905-6-16 8048 Siskiyou Near Sisson Comment
  UC27481  Penstemon newberryi var. newberryi C. B. Bradley 1879-1 Siskiyou Comment
  CHSC96095  Penstemon parvulus L. P. Janeway 2006-7-4 8793 Siskiyou Klamath Ranges. Scott Mountains; opening on spur ridge 1.9 km west-southwest of Scott Mountain Summit. 1838 Comment
  HSC19162  Penstemon parvulus J. O. Sawyer 1969-7-25 1540 Siskiyou SW facing upper slope above Sugar Lake 2210 Comment
  POM256008  Penstemon parvulus Marion Ownbey, Ruth P. Ownbey 1938-7-19 1749 Siskiyou 2.5 miles northwest of Dry Lake Lookout, summit of the Siskiyou Mtns. Comment
  HSC21  Penstemon procerus var. brachyanthus William J. Ferlatte 1966-6-22 81 Siskiyou Josephine Lake Basin 1677 Comment
  UC27495  Penstemon procerus var. formosus Harley P. Chandler June 1901 1639 Siskiyou ridges and meadows near Marble Mountain; North Coast Ranges, near Marble Mountain 2133 Comment
  UC2046559  Penstemon purpusii William J. Ferlatte 1974-7-15 1537 Siskiyou Yellow Rose Mine Trail Comment
  NY650118  Penstemon roezlii F. W. Pennell 1940-7-16 26162 Siskiyou 5 miles southwest of Yreka 914.4 Comment
  RSA60783  Penstemon roezlii Dorothy Parker 1948-6-14 s.n. Siskiyou Rail Creek, Plowman's Valley. 1189 Comment
  UC1212118  Penstemon roezlii F. Chisaki, G. Newcomb 1958-6-22 1160 Siskiyou between Ft. Jones and Gazelle (9.6 mi on road from Ft. Jones to Gazelle) 9.4 mi s from road to Duzel Rock; , btw Ft. Jones and Gazelle 1645 Comment
  UC722171  Penstemon rupicola C. L. Hitchcock, J. S. Martin 1939-7-7 5292 Siskiyou Sanger Peak Comment
  CAS-BOT-BC239431  Penstemon rydbergii var. oreocharis Peter Rubtzoff 1978-6-26 9218 Siskiyou Southeast margin of Grass Lake near Hwy 97 Comment
  JEPS116617  Penstemon speciosus Julie Kierstead Nelson with Rhonda Posey 2007-6-15 2007 -013 Siskiyou North side of Mt. Shasta, south of Hwy 97, along Forest Service Rd. 42N73 Weed (unburned area within Hotlum Fire perimeter burned in Feb 2006, 4 mi NE of town); Mt. Shasta 1127 Comment
  OBI2045  Penstemon speciosus J. H. Applegarth 1969-6-19 s.n. Siskiyou W of Cow Crk, a tributary of Beaver Crk 1524 Comment
  CHSC86659  Perideridia Jenny Marr 1993-7-1 42 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  NY406112  Perideridia leptocarpa L. Constance 1966-6-15 3768 Siskiyou West-facing slope above Trinity River, 5 miles northwest of Cecilville 762.0 Comment
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Mar 2 2015
  UC166610  Perideridia oregana Geo. D. Butler Jun 10 1909-Jun 20 1909 925 Siskiyou near Yreka Comment
  UCR52566  Perideridia oregana 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
  SEINET13944986 Image available Perideridia oregana L. Constance, T. I. Chuang, Fei, Mei Chuang, and M. Sousa S. 1966-1 3767 Siskiyou US Hwy 99W, 1.5 mi N of Edgewood turnoff, open rocky adobe pastured flat, alt. 300 ft 91 Comment
  JEPS22049  Perideridia parishii subsp. latifolia Rimo Bacigalupi with Reino and Aloha Alava 1958-9-2 6932 Siskiyou in meadow 1/4 mi n Scott Mtn. road summit (rd. from Callahan to Trinity Center) 1615 Comment
  JEPS81802  Perideridia parishii subsp. latifolia Rimo Bacigalupi with Reino and Aloha Alava 1958-9-2 6832 Siskiyou [road from Callahan to Trinity Center] road summit 1/4 mi n Scott Mtn. road summit; n of Scott Mtn., below Darlingtonia bog 1615 Comment
  RSA459100  Perideridia parishii subsp. latifolia M. B. Dunkle 9348 Siskiyou [Unspecified] 2439 Comment
  SEINET3924776  Persicaria hydropiper Louis C. Wheeler 1934-9-20 3287 Siskiyou Lumgrey Creek.; 0 671 Comment
  CAS-BOT-BC330262  Petasites frigidus var. palmatus Alice Eastwood 1912-8-30 1953 Siskiyou Mount Eddy Comment
  UCR45368  Phacelia bolanderi D. H. Norris 1970-5-23 12236 Siskiyou Along Klamath River at Ishi Pishi [Rd.] Bridge near Somes Bar 145 Comment
  HSC97703  Phacelia cookei Thomas W. Nelson, Jane Nelson 2006-7-1 9450 Siskiyou Along USFS Rd. 4319, Military Pass Rd., The Whaleback 1392 Comment
  UC673183  Phacelia egena Lincoln Constance and Reed C. Rollins 1942-5-13 2900 Siskiyou 8 mi s Happy Camp (near Clear Creek); Klamath-Siskiyou Region, Klamath River 304 Comment
  HSC43871  Phacelia greenei Jennifer Whipple 1977-4-30 1885 Siskiyou 915 Comment
  HSC67602  Phacelia heterophylla J. P. Smith, Steve Selva 1970-8-8 4572 Siskiyou Lava Beds National Monument Comment
  HSC13662  Phacelia heterophylla subsp. virgata Mrs. H. P. Bracelin 1931-6-20 430 Siskiyou 2 mi. NW of Mt. Shasta City 1052 Comment
  JEPS25846  Phacelia heterophylla subsp. virgata Rimo Bacigalupi with L. Constance and L. Heckard 1961-7-21 7472 Siskiyou along roadbank on state hwy 96 about 5 mi s Clear Creek ((or about 4 mi n of Swillup Creek)); Klamath River 292 Comment
  UC1034592  Phacelia heterophylla subsp. virgata Douglas Barbe 1955-7-1 70 Siskiyou 0.6 mi e Etna (s side of rd); Klamath Mountains 853 Comment
  HSC13673  Phacelia linearis R. C. Wunner 1965-7-13 387 Siskiyou Lava Beds National N.M., Indain Well Campground 1418 Comment
  RSA74334  Phacelia linearis Milo S. Baker 1936-6-12 8282 Siskiyou Highway 97, about 42 miles north of Weed. Comment
  UC1286475  Phacelia mutabilis W. B. and V. G. Cooke 1963-7-10 32467 Siskiyou n side Mt. Shasta (along Bolam logging rd) Comment
  UC1426027  Phacelia mutabilis Frederick W. Oettinger 1968-8-16 546 Siskiyou on mountain due n Hancock Lake; Salmon Mountains, Marble Mountain Wilderness Area, High Lake 1981 Comment
  UC70444  Phacelia mutabilis Milo S. Baker 1899-7-31 Siskiyou e slope Mt. Shasta (on Ash Creek) Comment
  SBBG122789  Phacelia pringlei B. Ertter 1990-7-14 9338 Siskiyou Wagon Crk, E side of Mt Eddy, ca. 4 air-mi W of Mt Shasta City 1828 Comment
  CAS-BOT-BC265816  Phalaris arundinacea Calvin McMillan; Malcom A. Nobs 1949-6-17 802 Siskiyou Grass Lake, Highway 97 Comment
  RSA759840  Philadelphus lewisii Robert F. Thorne 1969-8-2 63398 Siskiyou Klamath Nat'l Forest, Salmon Mountains: Marble Mtn Wilderness, trail to English Peak, along N fork of Salmon River at Cedars 1159 Comment
  CAS-BOT-BC250787  Phleum alpinum W. R. Dudley 1899-8-24 s.n. Siskiyou Meadow (Lunch Creek), Craggy Peak Comment
  CAS-BOT-BC250948  Phleum pratense William A. Dayton 1912-7-28 165 Siskiyou Shasta National Forest, Ash Creek Sink 1219 Comment
  HSC58857  Phleum pratense Marvin Butler 1971-8-2 266 Siskiyou Near Youngs Valley, close to the town of Cave Junction. 1403 Comment
  HSC61881  Phleum pratense Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1585 Comment
  JEPS84257  Phlox adsurgens L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6304 Siskiyou from Takilma to Happy Camp (Indian Creek Road, just s of state line) Comment
  UC1409303  Phlox austromontana Frederick W. Oettinger 1969-7-10 964 Siskiyou s of Upper English Lake; Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
  UC1190247  Phlox diffusa Ira L. Wiggins 1955-7-27 13541 Siskiyou Caribou Lake Salmon-Trinity Alps Primitive Area 2042 Comment
  UC30215  Phlox diffusa W. H. Brewer 1862-9-13 1377 Siskiyou Mount Shasta 2438 Comment
  HSC86537  Phlox diffusa D. K. Imper Jun 1987 Siskiyou 8 mi. E of town of Mt. Shasta, W of Red Butte 2134 Comment
  HSC81581  Phlox diffusa subsp. diffusa Thomas W. Nelson, Jane P. Nelson 1980-7-17 6085 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  RSA120867  Phlox diffusa subsp. diffusa Wagnon 1957-8-11 1703 Siskiyou East slope of Mt. Shasta in meadow ca. 1 mile west of Military Pass Road along road to Brewer Cr. Comment
  RSA211156  Phlox diffusa subsp. diffusa William J. Ferlatte 1966-6-23 128 Siskiyou Trinity Alps: Yellow Rose Mine. 1982 Comment
  UC705693  Phlox douglasii subsp. rigida Marion Ownbey, Fred G. Meyer 1940-7-4 2191 Siskiyou above Head of Brewer Creek (e side of Mt. Shasta); Mt. Shasta Comment
  UCR66520  Phlox gracilis L. C. Wheeler 1934-6-1 2602 Siskiyou Siskiyou Mtns., Head Jaynes Canyon 1829 Comment
  SEINET7042829  Phlox pulvinata A. G. Vestal 1955-5-16 s.n. Siskiyou Serpentine ca. 6.2 miles northwest of Weed. Weed quadrangle UTM Zone 10, 543291mE, 4591309mN. Comment
  HSC17169  Phlox rigida D. M. Thomson 1965-6-19 104 Siskiyou Lava Beds National Monument; 1.5 mi. N of Merril Ice Cave, on fire road Comment
  CHSC3384  Phlox speciosa Alice L. Stoll 1966-5-14 201 Siskiyou 7 miles S.E. of Callahan in forest alongside the Old Oregon Stage Road. 1219 Comment
  HSC82561  Phlox speciosa subsp. nitida Thomas W. Nelson, Jane P. Nelson 1979-5-26 4718 Siskiyou Along Hwy. 3, N of Scott Mtn. Summit, at junction with FS Rd. 40N03 1524 Comment
  HSC36820  Phlox speciosa subsp. occidentalis J. P. Smith 1974-5-27 7612 Siskiyou Along FS Rd. 47N03 1280 Comment
  POM75065  Phlox speciosa subsp. occidentalis Geo D. Butler 1909-4-13 650 Siskiyou Near Yreka. Comment
  RSA431456  Phoenicaulis cheiranthoides L. C. Wheeler 1934-8-9 3078 Siskiyou Head of Jaynes Canyon. Siskiyou Mtns. (Mt. Diablo Mer.) 1921 Comment
  CHSC75765  Phoradendron densum Vernon H. Oswald; Lowell Ahart 1999-7-5 9814 Siskiyou Gazelle Mtn. on road 41N03 1.0 mi southeast of Gazelle-Callahan Hwy. 1554 Comment
  POM165888  Phoradendron densum E. B. Copeland 1903-7-7 3542 Siskiyou Hornbrook. Comment
  LA11637  Phragmites australis Louis C. Wheeler; 1934-10-21 3335 Siskiyou Shasta Valley 4 mi E Grenada 868 Comment
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  CAS-BOT-BC56484  Phyllodoce empetriformis G. J. Muth 1969-8-10 1324 Siskiyou Ridge w. of Boulder Peak 2286 Comment
  CAS-BOT-BC56485  Phyllodoce empetriformis Maxine Wilkes 1940-8-1 s.n. Siskiyou Deep Lake, Marble Mts. Comment
  CAS-BOT-BC56507  Phyllodoce empetriformis Lewis S. Rose 1925-8-3 s.n. Siskiyou Mt. Shasta Comment
  HSC29627  Phyllodoce empetriformis Frederick W. Oettinger 1967-7-8 164 Siskiyou Marble Mountain Wilderness Area, High Lake Basins, near Big Blue Lake 2104 Comment
  HSC31489  Phyllodoce empetriformis Steve Selva, Roger Jensen 1974-8-23 41 Siskiyou Devils Punchbowl Comment
  JEPS82486  Phyllodoce empetriformis Gilbert Muth 1965-8-8 194 Siskiyou Black Mountain, Marble Mountain Wilderness Area Black Mountain; , Marble Mountain Wilderness Area 2011 Comment
  LA41255  Phyllodoce empetriformis Wm. Bridge Cooke; 1938-8-18 11496 Siskiyou Mount Shasta, around the springs above Horse Camp along the summit trail 2499 Comment
  SEINET7270871  Phyllodoce empetriformis H. A. Jensen 1933-9-5 s.n. Siskiyou Slope of Shastina 2591 Comment
  CDA5887  Physalis longifolia T. C. Fuller 1966-10-6 15246 Siskiyou Clement ranch, 5 miles north of Montague. 0 Comment
  RSA186830  Physalis virginiana var. sonorae T. C. Fuller 1966-10-6 15246 Siskiyou Siskiyou County: Clement ranch, 5 miles N of Montague Comment
  CAS-BOT-BC60778  Physaria occidentalis Lincoln Constance; Herbert L. Mason; J. F. Davidson; J. M. Tucker 1947-5-17 3199 Siskiyou Summit of northwest spur of Scott Mountain. 1828 Comment
  CAS-BOT-BC60761  Physaria occidentalis Gilbert Muth 1965-8-12 s.n. Siskiyou Behind Black Mountain. Comment
  CAS-BOT-BC60762  Physaria occidentalis Gilbert Muth 1965-8-12 s.n. Siskiyou Behind Black Mountain. Comment
  CAS-BOT-BC140593  Physocarpus capitatus Grant 1902-9-13 5182 Siskiyou Dunsmuir Comment
  UCSB24685  Physocarpus capitatus Favero, R. 1968-5-16 Siskiyou 13 miles from Somes Bar bridge toward Happy Camp, Salmon Mountains 487 Comment
  CAS-BOT-BC78164  Picea breweriana Roxana S. Ferris; Doris K. Kildale 1928-8-19 (K) 6534 Siskiyou Summit of Divide between English + Hancock Lake - trail to Marble Mt. 2194 Comment
  CAS-BOT-BC78177  Picea breweriana R. Bacigalupi 1935-10-21 2370 Siskiyou 1/2 mi. n.e. of summit of new Forest Service Road, between Waldo and Happy Camp, near Del Norte-Siskiyou county Line Comment
  HSC19107  Picea breweriana J. O. Sawyer 1969-7-25 1528 Siskiyou SE facing slope W of Sugar Lake 1845 Comment
  JEPS35941  Picea breweriana John Allen 1964-9-1 Siskiyou ca due w Orleans (on ridge between Creek and Elk Valley, road starts up from Orleans, and finally one takes the Dillon Mountain road) 1219 Comment
  NY30480  Picea breweriana A. Bell 1963-8-17 s.n. Siskiyou This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC73396  Pinus albicaulis John Thomas Howell 1937-7-24 13436 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC78323  Pinus attenuata A. A. Heller 1921-7-23 13587 Siskiyou near McCloud at the foot of Mt. Shasta 1066 Comment
  SEINET11526740  Pinus attenuata D. A. Charlet, T. Charlet 1996-12-15 2350 Siskiyou Mt. Shasta, lower southern slopes along State Highway 89, from a few miles east of McLeod to a few miles west of Bartle. Comment
  HSC4807  Pinus balfouriana J. O. Sawyer 1968-7-9 406 Siskiyou Ridge between Sugar Creek and Duck Lake Creek drainages 2195 Comment
  UC154  Pinus contorta subsp. murrayana Milo S. Baker 1893-8-8 Siskiyou near Medicine Lake 2438 Comment
  CAS-BOT-BC73261  Pinus contorta var. latifolia H. A. Thomas 1954-7-24 4516 Siskiyou Salmon-Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville. 1981 Comment
  CAS-BOT-BC73262  Pinus contorta var. latifolia H. A. Thomas 1954-7-24 4516 Siskiyou Salmon-Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville. 1981 Comment
  HSC1570  Pinus contorta var. murrayana R. C. Wunner 1965-8-22 471 Siskiyou Lava Beds National Monument Hidden Valley, closest end to Mammoth Crater 1585 Comment
  HSC32587  Pinus contorta var. murrayana Steven Lagos 1974-5-26 92 Siskiyou Little Duck Lake and the ridge above it 2073 Comment
  CAS-BOT-BC78782  Pinus lambertiana Carl B. Wolf 1927-8-27 1124 Siskiyou On the Klamath River, 4 mi. below Happy Camp Comment
  HSC29670  Pinus lambertiana Frederick W. Oettinger 1968-9-3 686 Siskiyou Marble Mtn. Wilderness Area, near top of 'Rusty Ridge' where it grades into Frany Peak to the W of Horse Range Lake 2012 Comment
  RSA24087  Pinus lambertiana C. B. Wolf 1940-12-11 9796 Siskiyou Siskiyou County: Siskiyou Mts, 8 miles above oak Knoll ranger station on road to dry lake lookout. 1524 Comment
  RSA82766  Pinus lambertiana J. M. Tucker 1950-7-24 1956 Siskiyou Beside road to Brewer Creek, off the Military Road, east side of Mt. Shasta. Comment
  UC618790  Pinus lambertiana W. Bridge Cooke 1938-9-2 11598 Siskiyou Sisson Southern Trail Mount Shasta Comment
  CAS-BOT-BC78962  Pinus monticola W. R. Dudley 1901-8-18 s.n. Siskiyou Jackson Lake Comment
  JEPS80554  Pinus monticola Gilbert Muth 1965-8-8 193 Siskiyou trail on backside Black Mountain; Marble Mt. Wilderness Area 1981 Comment
  RSA184683  Pinus monticola Gilbert Muth 1966-8-6 193 Siskiyou Upper meadows and marble outcrops of Marble Valley, Marble Mountains. 1768 Comment
  HSC67814  Pinus ponderosa J. O. Sawyer, J. Cole 1980-7-20 3789 Siskiyou S of Grouse Hill, at N base of Badger Peak 2146 Comment
  UC1600414  Pinus ponderosa Kate Stirring 1904-9-25 Siskiyou Etna Mills Comment
  UC618670  Piperia unalascensis W. Bridge Cooke 1938-7-22 11309 Siskiyou Wagon Camp meadow Mount Shasta, Wagon Camp 1737 Comment
  UCD120771  Plagiobothrys bracteatus K. L. Chambers; C. G. Carlbom 1962-4-21 2109 Siskiyou Hwy. 99, 5.6 mi. s. of the center of Yreka. Comment
  POM72154  Plagiobothrys greenei Geo. D. Butler 1909-4-30 668 Siskiyou Yreka Comment
  HSC29336  Plagiobothrys hispidulus Frederick W. Oettinger 1969-7-9 938 Siskiyou Marble Mtn. Wilderness Area, NW of Upper English Lake 1799 Comment
  JEPS68125  Plagiobothrys tenellus George D. Butler 1909-4-18 633 Siskiyou near Yreka Comment
  UC450115  Plagiobothrys tenellus Geo. D. Butler 1910-5-6 1295 Siskiyou Yreka Comment
  RSA611015  Plagiobothrys tenellus L. C. Wheeler 1935-5-18 3495 Siskiyou Siskiyou Mountains; Yreka Creek (Mt. Diablo Mer.) 854 Comment
  JEPS68263  Plantago eriopoda L. R. Heckard 1972-5-31 2936 Siskiyou about 2 mi e Gazelle (on road to Weed) Comment
  CDA6624  Plantago lanceolata G. D. Barbe 1973-8-14 1706 Siskiyou Site of proposed quarantine station south of Mt. Shasta City, west side of Interstate 5. Comment
  RSA715660  Plantago lanceolata L. Ahart, John Dittes 2005-6-10 12118 Siskiyou On a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 777 Comment
  RSA237605  Plantago lanceolata Frederick W. Oettinger 1969-8-13 1363 Siskiyou Where stock are kept at English Lake main campsite. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1753 Comment
  HSC46149  Platanthera dilatata var. leucostachys J. P. Smith, Steve Selva 1970-7-18 4491 Siskiyou Hanging bog at Kangaroo Lake. 1890 Comment
  HSC69053  Platanthera dilatata var. leucostachys Maralyn A. Renner 1980-8-6 2310 Siskiyou Cracker Meadow 1555 Comment
  HSC35439  Platanthera dilatata var. leucostachys A. Montalvo, J. D. Ackerman 1975-7-18 583 Siskiyou S Fork Sacramento River, FS 40N30 1372 Comment
  HSC61293  Platanthera dilatata var. leucostachys Ruby Van Deventer 1960-7-14 Siskiyou Flint Valley Comment
  HSC4863  Platanthera sparsiflora J. O. Sawyer 1968-7-10 506 Siskiyou On Sugar Creek just above confluence with S Sugar Creek 1707 Comment
  UC224081  Plectritis brachystemon Dr. Edward Palmer Jul 13 1892-Jul 27 1892 2483 Siskiyou Mount Shasta and vicinity Mount Shasta Comment
  UC164413  Plectritis macrocera Geo. D. Butler 1909-3-27 664 Siskiyou near Oro Fino Comment
  RSA183749  Pleuricospora fimbriolata Gilbert Muth 1965-8-5 307 Siskiyou Granite Creek, Marble Mts. Comment
  CAS-BOT-BC261035  Poa Melissa A. Berry 1957-7-8 s.n. Siskiyou South Russian Creek at Power House 822 Comment
  UC2046863  Poa cusickii subsp. cusickii R. E. Brainerd with N. Otting 2013-7-12 2179 Siskiyou Siskiyou County: Klamath Mountains. Marble Mountains Wilderness Area. Trail just above Upper Wright Lake. Comment
  HSC92144  Poa pratensis Jennifer Whipple 1976-7-2 1245 Siskiyou Near Durney Lake. 2073 Comment
  RSA238404  Poa pratensis Frederick W. Oettinger 1969-9-4 1630 Siskiyou East side of Hancock Lake. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1890 Comment
  RSA577534  Poa pratensis L. C. Wheeler 1935-5-11 3484 Siskiyou Klamath River at Ash Creek; Siskiyou Mts. (Mt Diablo Mer.) 610 Comment
  CHSC61586  Poa pratensis subsp. pratensis L. P. Janeway 1983-8-26 592 Siskiyou Siskiyou Mountains; at Poker Flat, upper part of a meadow. 1524 Comment
  UC1535350  Poa pratensis subsp. pratensis W. J. Ferlatte 1987-5-22 2106 Siskiyou between Siskiyou Blvd and S.P.R.R. Grenada (2 mi s of intersection of Hwy A-12 and Siskiyou Blvd, 10-30' s of Truttman Lane); Yreka Quadrangle 783 Comment
  CAS-BOT-BC247523  Poa pringlei Wm. Bridge Cooke 1939-7-26 13755 Siskiyou Mount Shasta. Below Lake Helen on the Summit Trail 3048 Comment
  UCD91770  Poa pringlei A. H. Murphy 1959-7-22 59 M Siskiyou Shasta National Forest. Summit between Bear Creek and Toad Lake. 2346 Comment
  CAS-BOT-BC237706  Poa secunda Elmer I. Applegate 1935-6-10 9465 Siskiyou Indian Welll, Lava Beds National Monument Comment
  POM198427  Poa secunda Geo D. Butler 1910-4-19 1200 Siskiyou Yreka Comment
  CAS-BOT-BC243226  Poa secunda subsp. secunda Ira L. Wiggins 1955-7-27 13527 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive area 2042 Comment
  CAS-BOT-BC243229  Poa secunda subsp. secunda L. E. Smith 1915-6-1 s.n. Siskiyou Yreka Comment
  CAS-BOT-BC243230  Poa secunda subsp. secunda A. A. Heller 1915-6-10 11956 Siskiyou Little Summit in the Sierra Nevada 1432 Comment
  HSC39632  Poa wheeleri J. P. Smith, J. O. Sawyer 1972-6-30 5647 Siskiyou Ridge W of Little Duck Lake. 2378 Comment
  POM230563  Polemonium californicum J. T. Howell 1937-7-24 13377 Siskiyou Caribou Basin, Salmon-Trinity Alps. 1982 Comment
  UC164137  Polemonium carneum Geo. D. Butler 1910-5-15 1344 Siskiyou McAdams Creek Comment
  UC1025129  Polemonium pulcherrimum subsp. pulcherrimum Douglas Barbe 1955-8-1 325 Siskiyou summit of Mt. Bolivar Klamath Mountains, Scott Mtns, summit Mt. Bolivar (Scott Mtns., Klamath Mountains) 2468 Comment
  UCD109718  Polygala cornuta J. P. Smith; Steve Selva 1970-7-14 3858 Siskiyou Exact location unknown. Comment
  CAS-BOT-BC170328  Polygala cornuta var. cornuta Alice Eastwood 1922-10-18 11525 Siskiyou Shasta Springs Comment
  UC1192345  Polygonum aviculare subsp. aviculare Verne Grant and Irving Schneider 1947-8-25 8276 Siskiyou Tule Lake; w side Comment
  HSC17464  Polygonum aviculare var. angustissimum Geo. D. Butler 1908-8-28 190 Siskiyou Mining dump of L. Eastlick near Oro Fino Comment
  RSA120791  Polygonum bistortoides S. S. Tillett 1956-7-9 658 Siskiyou E side of Scott Mtn; Siskiyou Trinity County line; 8 miles SE of Callahan. 1890 Comment
  UC55513  Polygonum bistortoides Harley P. Chandler June, 1901 1708 Siskiyou Shackleford Canyon North Coast Ranges (near Marble Mountain) 1828 Comment
  RSA237749  Polygonum bistortoides Frederick W. Oettinger 1967-8-20 295 Siskiyou Just below Tom Taylor Cabin Spring. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. Comment
  UCD77938  Polygonum californicum Robert E. Preston 2002-6-22 1883 Siskiyou Ca. 0.6 miles SW of Cayton, on W side of Hwy 89. 958 Comment
  JEPS50519  Polygonum convolvulus W. L. Jepson July 1894 14773 Siskiyou Sisson Comment
  UC1045312  Polygonum convolvulus W. Bridge Cooke 1940-7-12 15322 Siskiyou on Castle Lake road near Mount Shasta City Comment
  UC558482  Polygonum davisiae W. B. Cooke 1936-8-9 7241 Siskiyou Panther Creek Meadows Mount Shasta (avalanche flat) 2286 Comment
  UC850082  Polygonum davisiae John Thomas Howell 1939-8-2 14897 Siskiyou Spirit Lake Marble Mts. Comment
  UC922356  Polygonum davisiae Annie M. Alexander and Louise Kellogg 1949-7-20 5817 Siskiyou hill n Paradise Lake; Marble Mountains 1920 Comment
  HSC22416  Polygonum douglasii J. O. Sawyer 1969-7-25 1529 Siskiyou Southeast facing slope above Sugar Lake 1845 Comment
  RSA33410  Polygonum douglasii Doris K. Kildale 1925-9-6 1282 Siskiyou Somes Bar. 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
  UC1034056  Polygonum douglasii subsp. douglasii W. Bridge Cooke 1941-9-5 16266 Siskiyou MacBride Springs Mt. Shasta Comment
  UC164462  Polygonum douglasii subsp. douglasii Geo. D. Butler 1910-7-9 1706 Siskiyou Shackleford Creek 1219 Comment
  RSA598060  Polygonum douglasii subsp. spergulariiforme Louis C. Wheeler 1963-9-2 8331 Siskiyou Siskiyou Mountains. Near Bell Echo Camp, near Young's Valley, Clear Creek. 1402 Comment
  POM312533  Polygonum kelloggii H. L. Mason 1948-7-17 13599 Siskiyou Eastern Grass Lake. Comment
  HSC23696  Polygonum minimum J. O. Sawyer 1969-8-4 1877 Siskiyou S of S Sugar Lake 2104 Comment
  UC1540134  Polygonum newberryi Dean Wm. Taylor and Rexford E. Palmer 1987-8-8 9260 Siskiyou Lyons Peak Medicine Lake volcanic highland region (extreme nw section of county) 2407 Comment
  SD62053  Polygonum phytolaccifolium Darley F. Howe 1965-8-8 4127 Siskiyou Saddle, south of Little Gray Back Klamath National Forest 1402 Comment
  CHSC71494  Polygonum polygaloides subsp. confertiflorum Vernon H. Oswald; Lowell Ahart 1998-7-21 9335 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
  CAS-BOT-BC420074  Polygonum polygaloides subsp. kelloggii Alice Eastwood 1921-7-29 10954 Siskiyou Medicine Lake Comment
  JEPS91059  Polygonum polygaloides subsp. kelloggii Dean Wm. Taylor with Rexford E. Palmer 1988-6-23 9862 Siskiyou 4 mi n of Timbered Crater (1 mi se of Adobe Flat, Modoc Plateau); Modoc Plateau 1097 Comment
  CAS-BOT-BC109284  Polygonum shastense Alice Eastwood 1912-9-1 2077 Siskiyou Mount Shasta. Comment
  UC725786  Polygonum shastense A. A. Heller 1939-7-31 15433 Siskiyou Panther Meadow Mt. Shasta (border) Comment
  RSA44882  Polygonum spergulariiforme J. C. Roos, L. Roos 1948-9-1 3941 Siskiyou Fort Jones Comment
  RSA239011  Polystichum imbricans Frederick W. Oettinger 1966-7-25 37 Siskiyou Along Timber Gulch stream bank, Klamath Natinal Forest, Colville. Comment
  CAS-BOT-BC72378  Polystichum lemmonii Ira L. Wiggins 1950-5-28 12378 Siskiyou just above Grouse Lake (headwaters of Grouse Creek) 1828 Comment
  POM210966  Polystichum lemmonii L. C. Wheeler 1934-8-13 3114 Siskiyou East Fork Horse Creek. About rocks, bare north slope 1982 Comment
  RSA123580  Polystichum lemmonii G. D. Barbe 1955-7-9 147 Siskiyou Among rocks beside a stream on SW shore of Kangaroo Lake, Scott Mts. 1829 Comment
  CAS-BOT-BC72401  Polystichum lonchitis Louis C. Wheeler 1934-8-10 3100 Siskiyou Dead Cow Creek, Siskiyou Mts. 1889 Comment
  OBI1445  Polystichum lonchitis Lawrence L. Kiefer 1963-8-7 755 Siskiyou Baldy Mtn (W of Happy Camp) 1/2 mi NW of L.O. Comment
  RSA693279  Polystichum lonchitis M. B. Dunkle 1945-8-7 9332 Siskiyou King's Casle. Marble Mtns, Klamath National Forest. 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
  HSC79137  Polystichum scopulinum C. J. Thomas 1983-10-1 98 Siskiyou Box Camp Mtn. Ridge in Marble Mtn. Wilderness, 0.5 mi. from trail 2098 Comment
  CAS-BOT-BC102767  Populus tremuloides John Thomas Howell 1939-8-9 15209 Siskiyou Sky High Valley, Marble Mts. 1828 Comment
  RSA184758  Populus tremuloides Gilbert Muth 1966-7-19 420 Siskiyou Black Mountain Trail. Meadow above Marble Valley. Marble Mountains. 1860 Comment
  RSA68955  Potamogeton gramineus A. E. Culbertson 1943-7-21 3 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000 backwall; 14 mi. S.W. of Mt. Shasta on N. side of a 6600 eastern spur of Trinity Mts. 2000 above Sacramento R. within 10 mi. of its headwaters to the west. 1657 Comment
  JEPS41326  Potentilla breweri Ruby Van Deventer 1938-7-31 72 Siskiyou s Little Greyback Mountains (Poker Flat); s of Little Greyback Mountains, Poker Flat 1524 Comment
  UC1560740 Image available Potentilla cristae W. J. Ferlatte 1988-8-10 2117 Siskiyou ridge e Cory Peak; China Mt. se Quad., ridge e of Cory Peak 2286 Comment
  RSA68938  Potentilla glandulosa subsp. ashlandica A. E. Culbertson 1943-7-17 20 Siskiyou Castle Lake, in a north facing cirque with an abrupt 1000' backwall, 14 miles s.w. of Mt Shasta on n. side of a 6600' eastern spur of Trinity Mts.; 2000' above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  CHSC110957  Potentilla glandulosa subsp. pseudorupestris B. Castro; L. P. Janeway 2007-7-29 1666 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
  CHSC88116  Potentilla gracilis var. fastigiata Jenny Marr 1993-7-1 126 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NW of Meiss Lake. 1349 Comment
  JEPS79199  Potentilla gracilis var. fastigiata W. L. Jepson 1937-7-30 18550 Siskiyou Poker Flat Siskiyou Mts., headwaters of Indian Creek (headwaters of Indian Creek) 1584 Comment
  UC1128235  Potentilla gracilis var. fastigiata L. Whitney 1934-6-27 8 Siskiyou Tennant Dorris Quad., Antelope Creek 1463 Comment
  UC1409339  Potentilla gracilis var. fastigiata Frederick W. Oettinger 1968-9-10 816 Siskiyou Horse Range Lake meadow Salmon Mountains, Marble Mountain Wilderness Area (High Lake Basins in the vicinity of English Peak, Salmon Mountains, Marble Mountain Wilderness Area, W Siskiyou Co.) 1828 Comment
  CAS-BOT-BC540568  Potentilla gracilis var. fastigiata John Thomas Howell 1937-7-23 13343 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  HSC90739  Potentilla gracilis var. fastigiata Jennifer Whipple 1976-6-17 1027 Siskiyou Near Durney Lake, N end of lake 2073 Comment
  CAS-BOT-BC158527  Potentilla millefolia A. A. Heller 1905-6-20 8074 Siskiyou Gazelle Station Comment
  UCD113809  Potentilla millefolia J. M. Tucker 1950-7-24 1958 Siskiyou Southern edge of Grass Lake, beside Highway 97, ca. 22 miles northeast of Weed. Comment
  JEPS93984  Potentilla newberryi Vernon H. Oswald 1998-6-27 9241 Siskiyou ca. 22 air mi. n.e. Weed (Dry Lake on s. side of Tennant Rd. ca. 9 air mi. e. of Grass lake) 1402 Comment
  CAS-BOT-BC143316  Potentilla newberryi Gary Schoolcraft 1984-6-18 1228 Siskiyou On Big Tableland 9 mi. SW of Dorris, CA, 47-2-28 1356 Comment
  HSC27972  Prosartes hookeri Carl W. Mize 1972-9-23 111 Siskiyou Along Steinacher Creek Rd. 762 Comment
  CAS-BOT-BC516391  Prosartes hookeri W. R. Dudley 1901-8-24 s.n. Siskiyou Salmon Mountains Comment
  RSA60529  Prunella vulgaris var. lanceolata John H. Thomas 1949-6-16 950 Siskiyou 1/4 mi north of Beaver Creek Public Camp, along Beaver Creek; 5 mi north of junction of Beaver Creek and Klamath River; Klamath National Forest. Comment
  RSA183721  Prunella vulgaris var. lanceolata Gilbert Muth 1965-8-16 222 Siskiyou Marble Valley, Marble Mts. Comment
  CAS-BOT-BC158205  Prunus emarginata John M. Tucker 1963-7-7 3711 Siskiyou In vicinity of Paradise Lake, at base on east side of Kings Castle, Marble Mountain Wilderness Area 1981 Comment
  CAS-BOT-BC158210  Prunus emarginata L. R. Abrams 1922-8-7 9919 Siskiyou Shasta Springs Comment
  CAS-BOT-BC158220  Prunus emarginata John M. Tucker 1963-7-7 3711 Siskiyou In vicinity of Paradise Lake, at base on east side of Kings Castle, Marble Mountain Wilderness Area 1981 Comment
  CAS-BOT-BC158236  Prunus emarginata Doris K. Kildale 1928-7-4 5516 Siskiyou Summit of Divide between Salmon River & Scott Valley Comment
  CAS-BOT-BC158242  Prunus emarginata Annetta Carter 1939-8-19 1455 Siskiyou 3.5 miles north of Dunsmuir 914 Comment
  RSA96065  Prunus emarginata Percy C. Everett 1954-10-10 20259 Siskiyou 6.8 miles E of McCloud on road to Mt. Shasta (the town). Hwy 89. 1174 Comment
  LA208164  Prunus subcordata W. B. C.; 1938-6-24 11099 Siskiyou Mount Shasta, side of MacBride Springs road Comment
  UC484192  Prunus subcordata E. R. Johnson 1928-8-31 1195 Siskiyou w edge of Lava Beds National Monument, between Bartle and Lookout Lava Beds National Monument Comment
  CAS-BOT-BC151246  Prunus virginiana var. demissa Carl B. Wolf 1927-8-27 1111 Siskiyou On the Klamath River, Happy Camp Comment
  CAS-BOT-BC151249  Prunus virginiana var. demissa Geo. D. Butler 1910-7-24 1795 Siskiyou Yreka Creek Comment
  RSA3386  Prunus virginiana var. demissa Carl B. Wolf 1931-9-2 2389 Siskiyou Near the fish hatchery at Mt. Shasta City (Sisson). Comment
  SEINET8233950  Pseudoroegneria spicata Unknown 2007-6-17 Siskiyou California Siskiyou County, Cottonwood Peak. 1516 Comment
  HSC81663  Pseudostellaria jamesiana Thomas W. Nelson, Jane P. Nelson 1980-7-17 6079 Siskiyou Along FS Rd. 17, 1 mi. N of summit at county line 2073 Comment
  CAS-BOT-BC80175  Pseudotsuga menziesii Doris K. Kildale 1929-3-12 7812 Siskiyou Sawyers Bar, North Fork of Salmon River Comment
  JEPS89383  Psilocarphus brevissimus Dean Wm. Taylor with Rexford E. Palmer 1988-6-23 9863 Siskiyou 4 mi n of Timbered Crater (1 mi se of Adobe Flat, Modoc Plateau); Modoc Plateau 1097 Comment
  UC42931  Pteridium aquilinum var. pubescens Marshall A. Howe 1894-8-8 Siskiyou Shasta Soda Springs Comment
  HSC46115  Pterospora andromedea J. P. Smith, Steve Selva 1970-6-16 4000 Siskiyou 5 mi. from Hwy. 3 on Rd. 8 to Sugar Creek. 1189 Comment
  UCD22432  Purshia tridentata Brian Vanden Heuvel 2003-4-10 194 Siskiyou Shasta National Forest. 1.6 miles east of McCloud on CA 89, on south side of road. Comment
  CAS-BOT-BC147902  Purshia tridentata var. tridentata Carl B. Wolf 1927-8-26 1033 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  RSA30411  Purshia tridentata var. tridentata A. A. Heller 1916-6-23 12439 Siskiyou Near Black Butte, N of Sisson. 1128 Comment
  RSA449672  Purshia tridentata var. tridentata N. R. Zabriskie, W. Zabriskie 1971-7-23 411 Siskiyou St. Hwy 89 just E of McCloud. SE of Mt Shasta. Comment
  UC61036  Purshia tridentata var. tridentata Geo. B. Grant Sep 1902 5154 Siskiyou Sisson 914 Comment
  CHSC777  Pycnanthemum californicum V. Holt 1932-7-26 Siskiyou Black Butte Meadow. 1158 Comment
  HSC43038  Pyrola aphylla J. O. Sawyer, Ken Stillman 1976-7-2 2811 Siskiyou Ridges E of the Little N Fork Trail 732 Comment
  RSA0082809  Pyrola aphylla M. B. Dunkle 1944-8-8 9166 Siskiyou Hungry Creek. 1768 Comment
  CAS-BOT-BC465506  Pyrola asarifolia A. A. Heller 1921-6-28 13559 Siskiyou At the State Teachers College near Mt. Shasta Comment
  HSC61039  Pyrola asarifolia subsp. bracteata Ruby Van Deventer 24 Aug [year missing] Siskiyou Cameron Meadows Comment
  HSC44709  Pyrola dentata J. Sawyer, E. Cope 1977-6-18 2921 Siskiyou Along Clear Creek Trail between Ten Mile Creek and Bear Pen Creek 610 Comment
  HSC67799  Pyrola dentata J. Sawyer, J. Cole 1980-7-22 3991 Siskiyou Little Horse Peak 1720 Comment
  UC618902  Pyrola picta W. Bridge Cooke 1938-5-8 11454 Siskiyou Mount Shasta, Sisson Southern Trail Sisson Southern Trail; Mount Shasta, Sisson Southern Trail 1828 Comment
  JEPS37847  Quercus garryana var. breweri W. L. Jepson 1907-7-5 2845 Siskiyou Marble Mt. Comment
  UCSB1173  Quercus garryana var. breweri Muller, Cornelius 1954-6-24 Siskiyou 10.7 mi. SW of Etna, Summit of Salmon Mt. pass, 10 mi. NE of Idyllwild 1798 Comment
  CAS-BOT-BC105470  Quercus kelloggii Carl B. Wolf 1927-8-26 1027 Siskiyou On the Klamath River, 5 mi. below Hornbrook Comment
  RSA623530  Quercus kelloggii J. M. Tucker 1972-8-8 4244 Siskiyou Marble Mountains, trail from Whiskey Camp to Elk Peak, ca. 2.5 miles west-southwest of Marble Valley Guard Station. 1829 Comment
  SEINET5644385  Quercus kelloggii Brent Helm, Curtis Miller; Mark Steiger 1988-4-30 80 Siskiyou 1 mile east of Spring Flat Campground; along Scott River Rd in Montane forest.; 0 Comment
  CDA22036  Quercus sadleriana T. C. Fuller, Don Shaw 1974-9-24 20031 Siskiyou Pacific Crest Trail, summit of the Siskiyou Mountains, east of White Mountain. 0 Comment
  HSC27623  Quercus sadleriana Carl W. Mize 1972-6-23 99 Siskiyou Along trail from Camp 3 976 Comment
  HSC36740  Quercus sadleriana Brent Whitely 1975-7-3 128 Siskiyou 1220 Comment
  HSC69300  Quercus sadleriana Maralyn A. Renner 1980-7-24 1989 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  SBBG113472  Quercus sadleriana D. Wilken with 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 Crk, O'Brien-Happy Camp Rd 1500 Comment
  UC1409454  Quercus sadleriana Frederick W. Oettinger 1968-9-7 761 Siskiyou n shore Tobacco Lake (vicinity of English Peak); Salmon Mountains, Marble Mountain Wilderness Area, Engliah P 1889 Comment
  UC1553368  Quercus sadleriana W. J. Ferlatte 1988-8-24 218 Siskiyou 17 mi n Happy Camp (near Des Moines Creek on road 18N30, 0.1 mi from road to O'Brien); Preston Pk. Quad. Comment
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Feb 9 2009
  UC971916  Quercus sadleriana Herbert L. Mason 1950-7-16 14060 Siskiyou road from Happy Camp, California to Waldo, Oregon Comment
  SEINET12029704  Quercus sadleriana S. Edwards, Roderick, W. 1983-1 105 Siskiyou E of Cook & Green Pass Comment
  CAS-BOT-BC104615  Quercus vacciniifolia L. E. Smith 1913-7-1 450 Siskiyou Rainbow Comment
  CDA22067  Quercus vacciniifolia J. M. Tucker 1948-8-3 1776 Siskiyou 6.7 miles (by road) below the summit of Happy Camp - Waldo Road;. 0 Comment
  RSA211498  Quercus vacciniifolia William J. Ferlatte 1967-8-17 956 Siskiyou Trinity Alps; Yellow Rose Mine. 1982 Comment
  RSA237819  Quercus vacciniifolia Frederick W. Oettinger, Robert F. Thorne 1969-8-6 1252 Siskiyou Southwest-facing slope of lower Toms Lake Basin. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1860 Comment
  UC637076  Quercus vacciniifolia Edward Lee 1934-8-13 1066 Siskiyou Happy Camp to Waldo (Oregon) road (watershed of West Branch of Indian Creek); Klamath National Forest, West Branch of Indian Creek 1371 Comment
  UC827588  Ranunculus alismifolius var. alismifolius Frank W. Gould 1940-5-14 1225 Siskiyou 11 mi w highway U.S. 97 (on road to Montague); Bull Meadows 1676 Comment
  UC618607  Ranunculus occidentalis W. Bridge Cooke 1938-7-1 11113 Siskiyou Bear Springs Mount Shasta (along road on bank of spring creek) Comment
  RSA47793  Ranunculus occidentalis var. ultramontanus Roxana S. Ferris, Laura Lorraine 1948-6-13 12 Siskiyou 2.6 miles below summit of Gazelle Mtn grade, E side. 1418 Comment
  RSA49963  Ranunculus orthorhynchus E. K. Balls 1949-7-8 13898 Siskiyou Trail to Carmen Lake from Scott Mountain Camp, Scott Mt. 1707 Comment
  CDA3484  Ranunculus repens C. S. Giebner 1959-5-29 Siskiyou Copeland Ranch, Weed. 0 Comment
  HSC19435D  Ranunculus uncinatus J. O. Sawyer 1969-7-11 855 Siskiyou Ravine above C.C.C. road. 1280 Comment
  LA40926  Rhododendron columbianum Martha Hilend; 1931-8-6 799 Siskiyou near Moraine Lake, Ledum Comment
  OBI14446  Rhododendron occidentale H. E. McMinn 1931-6-27 2535 Siskiyou Summit above Weitchpec Comment
  SJSU6476  Rhododendron occidentale R. W. Trivelpiece 1972-6-18 122 Siskiyou Douglas Cr near Klamath R c. 10 mi SW of Happy Camp 762 Comment
  CAS-BOT-BC438001  Ribes Alice Eastwood 1912-7-19 1226 Siskiyou Mount Shasta Comment
  POM92097  Ribes aureum Geo. D. Butler 1910-4-19 1203 Siskiyou Yreka Creek Comment
  CAS-BOT-BC92532  Ribes binominatum W. R. Dudley 1901-8-18 s.n. Siskiyou Near Jackson Lake, Salmon Mountains. Comment
  HSC99335  Ribes binominatum G. L. Clifton 1979-7-1 6193 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  CHSC9494  Ribes cereum J. F. Goodwin 1971-7-3 132 Siskiyou North side of road on dry rocky bank, 3.0 mi. south of Mt. Shasta Ski Bowl area. 2087 Comment
  SBBG15096  Ribes cereum J. Major 1961-7-14 635 Siskiyou Panther Crk, Mount Shasta 1790 Comment
  RSA0024873  Ribes cereum E. K. Balls 1950-5-15 14703 Siskiyou Lava Beds National Monument, below Indian Wells Public Camp. 1402 Comment
  CAS-BOT-BC168860  Ribes inerme var. klamathense L. E. Smith 1913-5-4 251 Siskiyou Hornbrook Comment
  RSA0021095  Ribes inerme var. klamathense G. D. Barbe 1955-6-29 42 Siskiyou 1.8 miles east of Callahan, south bank of Scott River. 976 Comment
  CAS-BOT-BC173284  Ribes lacustre John Thomas Howell 1937-7-25 13459 Siskiyou Caribou Basin, Salmon-Trinity Alps 2286 Comment
  CAS-BOT-BC173382  Ribes lobbii Roxana S. Ferris; Laura Lorraine 1948-6-12 11768 Siskiyou About 6 miles from Etna on forks of Salmon Road 1676 Comment
  SBBG2762  Ribes lobbii H. and M. Dearing 1939-7-2 3799 Siskiyou Salmon Mtn summit 1981 Comment
  UC455590  Ribes lobbii I. J. Condit 1911-7-5 Siskiyou near Shasta Retreat; Mt. Bradley 1524 Comment
  RSA0021143  Ribes lobbii P. A. Munz 1952-7-2 17888 Siskiyou Road to Baldy Mt., northwest of Happy Camp, Siskiyou Mts. 1524 Comment
  JEPS6909  Ribes marshallii W. Brookfield 1953-7-27 253 Siskiyou Marble Mountain Wilderness Area Klamath National Forest 1828 Comment
  UC54301  Ribes nevadense H. M. Hall and E. B. Babcock June 1903 4131 Siskiyou Head of McCloud River Sierra Nevada Mountains, Mount Shasta 1524 Comment
  HSC41076  Ribes roezlii J. O. Sawyer 1970-4-3 2051 Siskiyou Robinsons Flat, 4 mi. E of Sawyers Bar 732 Comment
  HSC67806  Ribes roezlii J. O. Sawyer, J. Cole 1980-7-22 3971 Siskiyou NW slopes of Cedar Mtn. 1524 Comment
  CAS-BOT-BC199986  Ribes roezlii var. cruentum John Thomas Howell; T. C. Fuller; G. D. Barbe 1980-4-29 53390 Siskiyou Forest Mountain Summit, 6 miles southwest of Yreka on road to Fort Jones 1249 Comment
  CAS-BOT-BC199989  Ribes roezlii var. cruentum Geo. D. Butler 1910-4-21 1211 Siskiyou Oro Fino Comment
  CAS-BOT-BC199990  Ribes roezlii var. cruentum Doris K. Kildale 1929-7-20 8673 Siskiyou Raspberry Lake, upper Indian Creek 1828 Comment
  HSC33961  Ribes sanguineum J. P. Smith 1974-5-25 7445 Siskiyou Near junction of Rd. 8 with French Creek Rd. 1280 Comment
  UC165272 Image available Ribes sanguineum Geo. D. Butler 1909-4-26 671 Siskiyou Quartz Valley Comment
  UC375360  Ribes sanguineum Geo. D. Butler 1910-5-1 1265 Siskiyou Humbug Mountain Comment
  HSC44887  Ribes sanguineum var. sanguineum Maralyn O'Meara 1974-5-25 401 Siskiyou Along road to Duck Lakes trail 1402 Comment
  CAS-BOT-BC173907  Ribes velutinum Elmer I. Applegate 1927-4-24 5001 Siskiyou Modoc Lava Beds, Battle Ground Comment
  CAS-BOT-BC173914  Ribes velutinum T. Howell 1889-4-15 s.n. Siskiyou Hornbrook Comment
  CAS-BOT-BC168793  Ribes viscosissimum Doris K. Kildale 1928-7-2 5344 Siskiyou Salmon Summit via Horn Creek Trail 1981 Comment
  JEPS49200  Ribes viscosissimum Annie M. Alexander and Louise Kellogg 1911-6-15 148 Siskiyou Jackson Lake Comment
  JEPS84057  Ribes viscosissimum L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-16 6351 Siskiyou ca. 1/2 mi se Red Butte (ca. 7 mi nne of Seiad Valley, sw of Cook and Green Pass) 1730 Comment
  UC11679  Ribes viscosissimum Harley P. Chandler June 1901 1597 Siskiyou near Marble Mountain; North Coast Ranges 2133 Comment
  CHSC33835  Rorippa curvisiliqua var. occidentalis R. E. Preston 1981-5-2 59 Siskiyou On bank of Camp Creek at confluence with Irongate Reservoir; ca. 32 km ne of Yreka. 702 Comment
  JEPS47236  Rosa Geo. D. Butler 1909-9-26 973 Siskiyou along creek near Yreka Comment
  NY345435  Rosa brownii H. E. Brown 1897-6-1 349 Siskiyou Near Mt. Shasta Comment
  SEINET7665341  Rosa californica G. D. Butler 1910-5-16 1352 Siskiyou Yreka Comment
  CAS-BOT-BC146736  Rosa gymnocarpa A. A. Heller 1915-8-24 12203 Siskiyou Metcalf's Ranch, northeast base of Mt. Eddy 1188 Comment
  CAS-BOT-BC146739  Rosa gymnocarpa Alice Eastwood 1912-8-28 1936 Siskiyou Cantara Comment
  CAS-BOT-BC146752  Rosa gymnocarpa Wm. Bridge Cooke 1938-6-24 11094 Siskiyou [MacBride] McBride Spring Road Comment
  HSC19382  Rosa gymnocarpa J. O. Sawyer 1968-6-25 347 Siskiyou Along Horse Range Creek 1646 Comment
  POM140216  Rosa pisocarpa E. B. Copeland 1904-08 s.n. Siskiyou Mt. Shasta region Comment
  JEPS83869  Rosa pisocarpa subsp. pisocarpa Wayne Roderick 1976-7-1 Siskiyou vicinity of Cook and Green Pass Siskiyou Mts. 1463 Comment
  CHSC69082  Rotala ramosior Vernon Oswald; Lowell Ahart 1997-7-28 8807 Siskiyou On the east side of Forest Route 15, 10.9 mi north of Hwy. 89. 1383 Comment
  CAS-BOT-BC147136  Rubus glaucifolius Elmer I. Applegate 1923-9-7 3949 Siskiyou Doggett Creek, Canyon of the Klamath River, south slope of the Siskiyou Mountains Comment
  CAS-BOT-BC147142  Rubus glaucifolius Louis C. Wheeler 1934-8-31 3233 Siskiyou Klamath National Forest, Bear Creek 1767 Comment
  HSC99690  Rubus lasiococcus G. L. Clifton 1979-7-1 6177 Siskiyou Near Poker Flat, close to the town of Happy Camp 1538 Comment
  HSC78  Rubus leucodermis William J. Ferlatte 1967-7-26 761 Siskiyou NW side of Caribou Mtn., near Browns Meadow. 1829 Comment
  UC329936  Rubus leucodermis J. G. Lemmon 1888-9-7 Siskiyou near Mt. Eddy; near Mt. Eddy Comment
  HSC58948  Rubus parviflorus Marvin Butler 1971-7-19 156 Siskiyou Near Marv's Meadow, close to the town of Cave Junction. 1464 Comment
  HSC69286  Rubus parviflorus Maralyn A. Renner 1980-7-24 1951 Siskiyou Pacific Crest Trail above Lily Pad Lake. 1799 Comment
  POM91435  Rubus parviflorus var. hypomalacus Geo. D. Butler 1910-5-30 1438 Siskiyou Humbug Mountain 1220 Comment
  CAS-BOT-BC363168  Rudbeckia californica Julie Kierstead Nelson; Rhonda Posey; Ross Olson 2007-8-1 2007 -020 Siskiyou The Eddys, west of Mt. Shasta. Seep adjacent to unnamed tributary to Middle Fork of upper Sacramento River, along Forest Service Rd. 40N64 ca. 1/2 mile N of Middle Fork crossing 1693 Comment
  UC133445  Rudbeckia klamathensis Dr. E. B. Copeland 1903-9-8 3862 Siskiyou Mt. Eddy 1524 Comment
  CAS-BOT-BC363209  Rudbeckia occidentalis William M. Hiesey 1947-8-23 554 Siskiyou Beaver Creek Public Camp Ground, Klamath National Forest, 5 miles north of the Klamath River (10 miles N.W. of Gottville). Along streamcourse of Beaver Creek 701 Comment
  RSA237323  Rumex acetosella Frederick W. Oettinger 1967-6-29 119 Siskiyou Ride near Etna Summit on road from Etna to Sawyer Bar. The Salmon Mountains. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 1820 Comment
  RSA68896  Rumex acetosella A. E. Culbertson 1943-7-12 61 Siskiyou Castle Lake, in a north facing cirque with a abrupt 1000' backwall; 14 miles SW of Mt. Shasta on N side of a 6600' eastern spur of Trinity Mts.; 2000 ft. above Sacramento R. within 10 air miles of its headwaters to the west. 1657 Comment
  HSC31036  Rumex crispus Frederick W. Oettinger 1969-8-13 1362 Siskiyou Marble Mtn. Wilderness Area, English Lake 1753 Comment
  UCD101336  Rumex kerneri G. D. Barbe 1980-6-5 2815 Siskiyou Abandoned dairy south of Knighton Road along Sacramento River, on Riverland Drive (Interstate 5 frontage road); between Redding and Anderson. 128 Comment
  HSC92353  Sagina saginoides Jennifer Whipple 1976-7-24 1569 Siskiyou Near Dobkins Lake 2073 Comment
  SD88326  Sagittaria longiloba Darley F. Howe 1972-7-8 Siskiyou Grass Lake, 21 miles north of Weed on #97. 1525 Comment
  CAS-BOT-BC103369  Salix bonplandiana W. R. Dudley 1899-8-25 s.n. Siskiyou Gazelle Comment
  CAS-BOT-BC103536  Salix commutata John Thomas Howell 1939-8-7 15132 Siskiyou Sky High Valley, Marble Mts. Comment
  CAS-BOT-BC103539  Salix commutata Louis C. Wheeler 3083 Siskiyou Klamath National Forest, Jaynes Canyon 1981 Comment
  HSC34266  Salix eastwoodiae J. P. Smith, J. O. Sawyer 1973-8-14 7312 Siskiyou Around Cliff Lake 1860 Comment
  HSC67667  Salix eastwoodiae John Palmer 1980-7-24 587 Siskiyou Klamath National Forest, Elk Hole 1503 Comment
  JEPS80592  Salix eastwoodiae Gilbert Muth 1966-8-3 498 Siskiyou Marble Mountain Wilderness Area, Marble Valley Marble Valley; Marble Mountain Wilderness Area, Marble Valley 1792 Comment
  RSA184756  Salix eastwoodiae Gilbert Muth 1966-7-8 377 Siskiyou Marble Valley. Marble Mtns. 1793 Comment
  RSA15588  Salix exigua Carl B. Wolf 1927-8-27 1133 Siskiyou On the Klamath River. 7 miles below Happy Camp. Comment
  CAS-BOT-BC107785  Salix hindsiana L. B. Kildale 1930-5-31 9793 Siskiyou Island in Klamath River near Hornbrook Comment
  CAS-BOT-BC125467  Salix lasiandra var. lasiandra W. R. Dudley 1899-8-8 s.n. Siskiyou Near Big Spring above Sisson Comment
  CAS-BOT-BC107066  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 410 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1425 Comment
  CAS-BOT-BC107069  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 412 Siskiyou Northeast side of Mount Eddy, about 16 km. northwest of Shasta City 1425 Comment
  LA208779  Salix lasiolepis Louis C. Wheeler; 1934-12-16 3363 Siskiyou Siskiyou Mountains, Oak Knoll Ranger Station, Klamath River 670 Comment
  POM219903  Salix lasiolepis H. P. Bracelin 1931-6-21 469 Siskiyou N side of Mt Eddy. About 21 km NW of Shasta City. 1650 Comment
  UC482246  Salix lasiolepis Mrs. H. P. Bracelin 1931-6-19 420 Siskiyou about 16 km nw Shasta City (ne side of mt., edge of stream above Metcalf ranch house); Mount Eddy 1515 Comment
  SJSU191  Salix lemmonii Mrs. H. P. Bracelin 1931-6-19 415 Siskiyou above Metcalf Ranch House, NE side of Mt Eddy c. 16 km NW of Shasta City 1463 Comment
  CAS-BOT-BC125694  Salix melanopsis Alice Eastwood 1923-5-29 11988 Siskiyou Shasta Springs Comment
  UC481730  Salix melanopsis Mrs. H. P. Bracelin 1931-6-22 475 Siskiyou near hwy. at Flume Creek Camp (Flume Creek - tributuary of Pit River); Flume Creek 555 Comment
  CAS-BOT-BC126151  Salix scouleriana L. E. Smith 1913-3-28 614 Siskiyou Weed Comment
  CAS-BOT-BC126153  Salix scouleriana L. E. Smith 1913-4-2 620 Siskiyou Sisson Comment
  CAS-BOT-BC126170  Salix scouleriana John Thomas Howell 1939-8-6 15102 A Siskiyou Elk Peak, Marble Mts., Siskiyou Mts. Comment
  CAS-BOT-BC129075  Salix scouleriana Elmer I. Applegate 1935-6-11 9511 Siskiyou East Base of Cinder Cone, near the southwest corner of the Lava Beds National Monument Comment
  RSA238270  Salix scouleriana Frederick W. Oettinger 1969-7-29 1093 Siskiyou Margin of Dry Lake. Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mtn Wilderness Area. 1845 Comment
  CAS-BOT-BC220806  Salvia dorrii var. dorrii Elmer I. Applegate 1932-6-13 7242 Siskiyou Lava Beds National Monument. Captain Jack's Stronghold, north of the monument area, near old shoreline of Tule Lake Comment
  HSC14352  Salvia dorrii var. incana R. C. Wunner 1965-7-9 357 Siskiyou Lava Beds National Monument, Black Crater Trail, 25 yds. from Hardin Butte trail jct. Comment
  CAS-BOT-BC238885  Sambucus nigra subsp. caerulea John Thomas Howell 1937-7-23 13358 Siskiyou South Fork of Salmon River near Big Flat 1524 Comment
  UC735045  Sanicula bipinnatifida Lincoln Constance and R. H. Shan 1946-5-31 3060 Siskiyou Sacramento River at Dunsmuir Sacramento River; , Dunsmuir 701 Comment
  HSC61954  Sanicula graveolens Ruby Van Deventer 1959-7-9 Siskiyou Poker Flat 1555 Comment
  UC1034053  Sanicula graveolens W. Bridge Cooke 1941-7-18 16083 Siskiyou below Wagon Camp (near the Bear Springs-Wagon Camp Road, Mount Shasta); Mount Shasta 1706 Comment
  UC1222752  Sanicula graveolens Joseph P. Tracy 1951-6-16 19481 Siskiyou at crossing of Takilma-Happy Camp Road (Summit of the Siskiyous); Summit of Siskiyous Comment
  HSC68018  Saponaria officinalis J. P. Smith, Steve Selva 1970-7-16 4404 Siskiyou 1 mi. E of O'Neill Campground 579 Comment
  UC1408862  Saxifraga aprica Frederick W. Oettinger 1969-7-9 940 Siskiyou the High Lake Basins in the vicinity of English Peak (nw of upper English Lake); Salmon Mountains, Marble Mountain Wilderness Area 1920 Comment
  UC166552  Saxifraga californica Geo. D. Butler 1910-3-25 1138 Siskiyou Shasta River hills Shasta River Comment
  RSA29832  Saxifraga ferruginea Louis C. Wheeler 1934-8-15 3147 Siskiyou Johnson s Dairy. (Mt. Diablo Mer.) 1707 Comment
  JEPS47488  Saxifraga odontoloma Geo. D. Butler 1908-8-8 222 Siskiyou Marble Valley Camp 1676 Comment
  HSC19459  Saxifragopsis fragarioides J. O. Sawyer 1969-7-24 1458 Siskiyou NW facing slope SW of Sugar lake. 1829 Comment
  HSC38811  Saxifragopsis fragarioides J. O. Sawyer 1970-7-4 2324 Siskiyou At Cedar Flat Cabin 1402 Comment
  JEPS47486  Saxifragopsis fragarioides Geo. D. Butler 1909-7-15 897 Siskiyou 3 mi ene Finley's Camp (Highland Mine); Salmon Mts. 1706 Comment
  CDA32669  Schedonnardus paniculatus Don Shaw 1980-8-5 Siskiyou Don Shaw Property, Ager Road, Montague 0 Comment
  UCD86388  Schedonnardus paniculatus D. H. Shaw 1980-8-5 s.n. Siskiyou Montague, Ager road, Don Shaw property. Comment
  HSC74816  Schoenoplectus tabernaemontani J. P. Smith 1978-7-1 9996 Siskiyou Klamath National Forest, O'Neill Creek Campground, Klamath River 488 Comment
  CAS-BOT-BC110853  Scirpus congdonii Alice Eastwood 1921-7-24 10765 Siskiyou Castle Lake Comment
  HSC68402  Scirpus congdonii Maralyn A. Renner 1980-6-26 1136 Siskiyou Flint Valley. 1390 Comment
  UCD141272  Scirpus microcarpus S. S. Tillett 1956-7-9 641 Siskiyou county line, ca. 8 miles SE of Callahan. E of Scott Mountain. 1828 Comment
  UCD98526  Scleranthus annuus subsp. annuus Louis C. Wheeler 1935-6-15 3585 Siskiyou Greenview, Scott Valley. 883 Comment
  SEINET3160652  Scrophularia californica G. D. Butler 1910-5-22 1383 Siskiyou Yreka Creek Comment
  HSC27105  Scutellaria antirrhinoides Carl W. Mize 1972-6-21 57 Siskiyou 0.25 mi. above rd. on WSW slope 274 Comment
  HSC44712  Scutellaria antirrhinoides J. O. Sawyer, E. Cope 1977-6-18 2918 Siskiyou Along Clear Creek Trail between Ten Mile Creek and Bear Pen Creek 610 Comment
  RSA17980  Scutellaria antirrhinoides Carl B. Wolf 1927-8-26 996 Siskiyou Klamath River, 5 miles below Hornbrook. Comment
  RSA789787  Scutellaria antirrhinoides Rebecca Wenk 2005-7-16 250 Siskiyou Trinity Alps, South Fork of the Salmon River. South end of Big Flat Meadow. 1494 Comment
  UC1112881  Scutellaria nana Milo S. Baker 1957-6-15 13105 Siskiyou road cut just s of Week Comment
  UC164005  Scutellaria siphocampyloides Geo. D. Butler 1908-6-29 175 Siskiyou Cherry Creek Comment
  CAS-BOT-BC240099  Secale cereale Milo S. Baker 1955-6-27 13088 Siskiyou About 1 mi. W of Gazelle on rd. to Callahan 914 Comment
  CAS-BOT-BC494142  Sedum kiersteadiae Peter F. Zika; Julie Nelson 2012-6-21 25905 Siskiyou Ridge above South Fork Willow Creek, along FS Rd 42N19, 8 air km ENE of Gazelle Mountain, Shasta-Trinity National Forest 1630 Comment
  CAS-BOT-BC59187  Sedum lanceolatum John Thomas Howell 1939-8-4 15050 Siskiyou Marble Rim, Marble Mts. 1889 Comment
  CHSC33032  Sedum laxum subsp. heckneri M. A. Baker 1978-7-17 594 Siskiyou On the north bank of the Salmon River 5 k east of ... Field redacted by CHSC, contact the data manager for more information Comment
  HSC28658  Sedum laxum subsp. heckneri Frederick W. Oettinger 1969-7-11 988 Siskiyou Marble Mountain Wilderness Area: Near summit of Little Medicine Mtn. (N of Hancock Lake) 2104 Comment
  JEPS84103  Sedum obtusatum L. R. Heckard with J. Hickman et al. 1986-7-17 6511 Siskiyou n slope Condrey Mt.; n slope Condrey Mt. 1960 Comment
  HSC19535  Sedum obtusatum subsp. retusum J. O. Sawyer 1969-7-7 1087 Siskiyou Little Duck Lake 1966 Comment
  HSC603  Sedum obtusatum subsp. retusum William J. Ferlatte 1967-7-26 750 Siskiyou Caribou Basin, Sawtooth Ridge 2287 Comment
  HSC69553  Sedum obtusatum subsp. retusum Maralyn A. Renner 1980-6-26 1293 Siskiyou Klamath National Forest, ridge along FS Rd. 15N01, 1 mi. N of Flint Valley. 1494 Comment
  HSC74917  Sedum obtusatum subsp. retusum J. P. Smith, Jennifer Whipple 1978-7-2 9968 Siskiyou Klamath National Forest, ridge trail E of Cook and Green Pass 1341 Comment
  CAS-BOT-BC64657  Sedum oregonense H. A. Thomas; J. H. Thomas 1954-7-24 4509 Siskiyou Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. 9 mi. E of Cecilville. 1828 Comment
  RSA0083647  Sedum oregonense Frederick W. Oettinger 1968-9-7 770 Siskiyou NW-facing slope of Golden Peak, due SE of Tobacco Lake and at approx. mid slope. 2012 Comment
  CAS-BOT-BC59129  Sedum spathulifolium John Thomas Howell 1937-7-26 13565 Siskiyou Between Big Flat and Caribou Gulch. Comment
  HSC25456  Sedum stenopetalum J. P. Smith, J. O. Sawyer, Maralyn O'Meara 1972-7-3 5651 Siskiyou Ridge E of Cook and Green Pass. 1524 Comment
  HSC29492  Selaginella scopulorum Frederick W. Oettinger 1968-8-5 401 Siskiyou Marble Mtn. Wilderness Area, between English Peak and Diamond Lake, 2073 Comment
  UC371152  Selaginella wallacei G. D. Butler 1909-7-20 874 Siskiyou Highland Mine Comment
  POM210934  Selaginella wallacei Louis Cutter Wheeler 1934-8-15 3158 Siskiyou East Fork Horse Creek, Siskiyou Mtns. (Mt Diablo Mer) 1524 Comment
  UC185219  Selaginella wallacei Geo. D. Butler 1909-7-15 874 Siskiyou Salmon Range 1828 Comment
  HSC91209  Senecio fremontii Jennifer Whipple 1978-10-6 2391 Siskiyou Mt. Eddy, N-facing slopes in the Eddy Creek Drainage 2317 Comment
  UCR93348  Senecio integerrimus Kathy Harper, D. Karr 1994-6-16 s.n. Siskiyou Sierra Nevada Mtns, 31 mi. NE of Bartle, meadow at junction of Medicine Lake Rd & road to Schonchin Springs, at Headquarters Camp 1982 Comment
  HSC90546  Senecio integerrimus var. exaltatus Jennifer Whipple 1976-6-19 1067 Siskiyou N-facing slopes in the Eddy Creek drainage 2195 Comment
  JEPS101631  Senecio streptanthifolius var. laetiflorus Dean W. Taylor 1998-6-17 16559 Siskiyou base of hillslopes ca. 4 miles S of Gazelle, bordering Shasta Valley (ca. 15 air mi S Yreka) Comment
  CAS-BOT-BC364436  Senecio triangularis R. C. Wenk 2008-7-24 920 A Siskiyou Kangaroo Lake, south of the Gazelle-Callahan Rd. 1851 Comment
  CAS-BOT-BC364442  Senecio triangularis Doris K. Kildale 1928-7-2 5402 Siskiyou Salmon Summit, via Horn Creek trail Comment
  HSC60778  Senecio triangularis Ruby Van Deventer 1960-7-7 Siskiyou Bell Echo Camp in Youngs Valley. 1220 Comment
  CAS-BOT-BC364420  Senecio triangularis D. H. Norris 1968-7-29 2214 Siskiyou Along trail from Big Flat to Yellow Rose Mine. 1828 Comment
  POM5593  Senecio triangularis E. B. Copeland 1903-8-19 3811 Siskiyou Mt. Eddy. 1463 Comment
  JEPS95250  Shepherdia canadensis Janet and Steve Edwards 1995-7-30 Siskiyou Parks Creek Road (USFS Road 17; Stewart Springs Road of some maps) 1731 Comment
  HSC39742  Sherardia arvensis J. O. Sawyer 1970-4-4 2093 Siskiyou Along Sugar Creek 823 Comment
  CHSC99695  Sibbaldia procumbens L. P. Janeway 2008-7-24 9473 Siskiyou Klamath Ranges. Siskiyou Mountains; at end of short spur road into top of Alex Hole; 1.0 km east-southeast of Condrey Mountain. 1975 Comment
  CHSC99989  Sidalcea asprella L. P. Janeway 2008-7-25 9500 Siskiyou Klamath Ranges. Siskiyou Mountains; 3/2 air km souothwest of Cook and Green Pass; 0.4 km southeast of Red butte. 1736 Comment
  UC108920  Sidalcea malviflora subsp. asprella Mrs. K. Brandegee Jul 1889 Siskiyou Sisson's Comment
  UC454908  Sidalcea oregana subsp. oregana I. J. Condit 1911-7-3 Siskiyou Shasta Retreat Shasta Retreat (dry bank along R.R.) Comment
  RSA82759  Sidalcea oregana subsp. oregana J. M. Tucker 1950-7-24 1959 Siskiyou Southern edge of Grass Lake, beside Highway 97, about 22 miles NE of Weed Comment
  HSC177  Sidalcea oregana subsp. spicata William J. Ferlatte 1966-8-2 227 Siskiyou Big Flat, between campground and S. fork of the Salmon River 1524 Comment
  RSA185856  Sidalcea oregana subsp. spicata H. A. Thomas, J. H. Thomas 1954-7-21 4435 Siskiyou Salmon - Trinity Mts. About 6 miles SE of Cecilville. West side of Rush Creek. 1159 Comment
  UC108900  Sidalcea oregana subsp. spicata T. S. Brandegee 1887-7-1 Siskiyou Sisson's Comment
  UC60961  Sidalcea oregana subsp. spicata Geo. B. Grant September 1902 5216 b Siskiyou Mount Shasta Comment
  HSC34117  Sidalcea oregana subsp. spicata J. O. Sawyer 1969-8-18 1996 Siskiyou Slopes of S Sugar Lake Creek 1829 Comment
  SEINET9004861  Sidalcea oregana subsp. spicata G. D. Butler 1910-7-17 1728 Siskiyou Oro Frisco. Comment
  UC624821  Sidalcea setosa David D. Keck 1938-8-6 4815 Siskiyou 4 mi s Oregon line (Poker Flat, on road from Waldo to Happy Camp, North slope, summit of Siskiyou Mts., at Del Norte Co. line); summit of Siskiyou Mts., North slope 1554 Comment
  UC465676  Silene californica H. W. Furlong Sept 1901 Siskiyou Summit to Ager Comment
  CAS-BOT-BC181193  Silene campanulata subsp. glandulosa H. A. Thomas; J. H. Thomas 1954-7-21 4388 Siskiyou About 6 miles SE of Cecilville, west side of Rush Creek, Salmon - Trinity Mts. 1036 Comment
  HSC19241  Silene grayi J. O. Sawyer 1969-7-18 1377 Siskiyou Ridge above S Russian Creek 1921 Comment
  UC1198360  Silene hookeri Joseph P. Tracy 1939-4-29 16273 Siskiyou 3 mi n of mouth Salmon (near Somes Bar, e side Klamath River); e side Klamath River near Somes Bar, n of mouth Salmon 243 Comment
  HSC61455  Silene laciniata subsp. californica Ruby Van Deventer 1938-6-11 Siskiyou Kelley Lake and Kelley Lake Trail Comment
  CHSC38088  Sisymbrium altissimum R. E. Preston 1983-6-9 394 Siskiyou In vacant lot; MacDoel. 1292 Comment
  JEPS53891  Sisymbrium altissimum W. L. Jepson 1914-8-13 5790 Siskiyou Sisson 1097 Comment
  CAS-BOT-BC75158  Sisymbrium altissimum L. B. Kildale 1930-5-31 9812 Siskiyou Island in Klamath River near Camp Lowe. Comment
  CHSC91388  Sisyrinchium bellum Lowell Ahart; John Dittes 2005-6-10 12102 Siskiyou Steep slope, 30 yards east of the Shasta River, near the south fence, 100 yards south of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. 776 Comment
  HSC536  Sisyrinchium bellum William J. Ferlatte 1966-6-22 101 Siskiyou Along the S Fork of the Salmon River, between the campground and Carter's 1524 Comment
  CDA39481  Sisyrinchium douglasii T. C. Fuller 1958-4-16 s.n. Siskiyou Giebner property, 4 miles south of Yreka. 0 Comment
  SEINET3992515  Smilacina stellata var. sessilifolia Unknown 1959-7-9 7271 Siskiyou Poker Flat 1536 Comment
  POM126716  Solanum Milo S. Baker 1898-08 496 Siskiyou Medicine Lake Mtns at Devil's Gate. Comment
  CHSC72242  Solanum physalifolium var. nitidibaccatum Vernon H. Oswald; Lowell Ahart 1998-9-16 9638 Siskiyou Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi east of Hwy. 97. At roadside. 1243 Comment
  RSA183743  Solidago canadensis subsp. elongata Gilbert Muth 1965-8-3 146 Siskiyou Meadow, Marble Valley, Marble Mountains. Comment
  HSC2402  Solidago elongata William J. Ferlatte 1966-8-18 415 Siskiyou Along the South Fork of the Salmon River between the campground and Carter's 1524 Comment
  JEPS32422  Solidago elongata Willis L. Jepson Jul 24 1894-Aug 10 1894 Siskiyou upper Sacramento (Sisson); Region of the Upper Sacramento, Sisson Comment
  UC1557825  Solidago elongata J. Semple, S. Heard 1986-8-14 8460 Siskiyou behind grade school (on East Lake St., Mt. Shasta City); Mt. Shasta City Comment
  UC36232  Solidago elongata Milo S. Baker 1893-6 Siskiyou 6 mi below Bartles; McCloud River Comment
  SEINET5709930  Solidago multiradiata Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7698 Siskiyou Scott Mts. Collected along Road 17, 8.8 miles SW from the intersection of I-5 and Stewart Springs Road.; Scott Mountains 1586 Comment
  HSC27098  Solidago velutina subsp. californica J. P. Smith, J. O. Sawyer 1972-9-14 5809 Siskiyou 3.6 mi. W of S.R. 3 on Rd. 8 1220 Comment
  CAS-BOT-BC374522  Sonchus asper R. E. Frenkel 1964-7-13 675 Siskiyou Near Mount Shasta on Everitt Memorial Highway 1280 Comment
  CAS-BOT-BC157322  Sorbus californica John Thomas Howell 1939-8-3 14979 Siskiyou Spirit Lake, Marble Mts. 1828 Comment
  UC1190120  Sorbus californica Ira L. Wiggins 1955-7-27 13554 Siskiyou Caribou Lake; Salmon Trinity Alps Primitive Area 2042 Comment
  UCD114046  Sorbus scopulina J. M. Tucker 1963-7-7 3715 Siskiyou Vicinity of Paradise Lake, at base of King's Castle on the east side, Marble Mountain Wilderness Area. 1981 Comment
  UCD92633  Sorghum halepense Collector Unknown 1956-8-21 s.n. Siskiyou Mt. Shasta City. Comment
  CAS-BOT-BC390722  Spergularia rubra Annie M. Alexander; Louise Kellogg 1949-7-25 5872 Siskiyou Paradise Lake, Marble Mountains 1920 Comment
  CAS-BOT-BC149695  Spiraea douglasii A. A. Heller 1916-7-20 12464 Siskiyou Metcalf's ranch, northeast base of Mt. Eddy 1188 Comment
  POM148450  Spiraea douglasii J. B. Feudge 1927-7-22 1683 Siskiyou Mt. Shasta City. 1067 Comment
  RSA472781  Spiraea douglasii M. K. Curran 1887-07 s.n. Siskiyou Edgewood. Comment
  UCSB24987  Spiraea douglasii Keefe, Joseph 1967-7-11 Siskiyou Near summit of hill by Little Castle Lake; south of Castle Lake, 10 miles southwest of town of Mt. Shasta 2011 Comment
  JEPS84076  Stachys ajugoides var. rigida L. R. Heckard with S. D'Alcamo, J. Hickman, S. Winchester 1986-7-15 6306 Siskiyou just s state line (Indian Creek Road from Takilma to Happy Camp) Comment
  UC1483507  Stachys ajugoides var. rigida Maralyn A. Renner 1980-8-31 2670 Siskiyou at trailhead to Twin Valley (Poker Flat); Klamath National Forest, Preston Peak Quad. 1524 Comment
  UCLA70898  Stachys ajugoides var. rigida W. Bridge Cooke 1940-6-20 15147 Siskiyou w Shasta River; Klamath River Comment
  UCLA70899  Stachys ajugoides var. rigida Louis C. Wheeler 1934-6-4 2631 Siskiyou Humbug Gulch Siskiyou Mts., Horse Creek 609 Comment
  CAS-BOT-BC516468  Stenanthium occidentale Gilbert Muth 1966-7-19 427 Siskiyou Marble Gap Trail, along 1st bluff, Marble Mts. 1828 Comment
  CAS-BOT-BC375639  Stephanomeria lactucina Wm. Bridge Cooke 1938-7-29 11389 Siskiyou Mount Shasta. Howard Comment
  JEPS24635  Stephanomeria lactucina Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-1 6790 Siskiyou A little above and east of McBride Springs south slopes of Mt. Shasta. 1432 Comment
  RSA237470  Stephanomeria lactucina Frederick W. Oettinger 1968-8-11 473 Siskiyou Braken Meadow, 0.1 mile from Tom Taylor Cabin. The Salmon Mtns. High Lake Basins in the vicinity of English Peak. Marble Mountain Wilderness Area. 2027 Comment
  UCD136391  Stephanomeria lactucina R. Tofsrud; J. M. Tucker 1948-8-4 1784 Siskiyou around 1.5 miles northwest of McCloud. Comment
  JEPS87638  Stephanomeria paniculata Vernon H. Oswald and Lowell Ahart 1994-8-10 6453 Siskiyou ca. 4.5 mi. (air) n.e. McCloud (Pilgrim Creek Rd. (FS 13) at Mud Creek, 2.7 mi. n. of Hwy. 89) 1097 Comment
  HSC6232  Stephanomeria virgata R. C. Wunner 1965-9-8 509 Siskiyou California Lava Beds National Monument; 0.1 mi. on Rd. to Caldwell Ice Cave 1372 Comment
  HSC18976  Stipa occidentalis var. occidentalis J. O. Sawyer 1969-7-20 1568 Siskiyou SE facing slope near the N fork of Sugar Creek 1753 Comment
  HSC92556  Stipa occidentalis var. occidentalis Jennifer Whipple 1976-7-14 1476 Siskiyou SE slope of Mount Eddy draining into the N Fork of the Sacramento River 2195 Comment
  UC455752  Streptanthus barbatus I. J. Condit 1909-8-25 Siskiyou along trail Sisson, North Fork 914 Comment
  UC1492824  Streptanthus tortuosus Freed W. Hoffman 1951-7-14 4044 Siskiyou along Hwy 99 5.6 mi n Shasta Comment
  UCSB13059  Streptanthus tortuosus 1962-6-11 Siskiyou Base of Black Butte along U.S. Highway 99, 4 miles south of Weed 1188 Comment
  CHSC69074  Streptanthus tortuosus var. orbiculatus Vernon Oswald; Lowell Ahart 1997-7-28 8770 Siskiyou Forest Route 49 (Powder Hill Rd.) at 41N03 (to Porcupine Butte), 16 mi south of Medicine Lake. 1365 Comment
  JEPS73712  Streptanthus tortuosus var. tortuosus L. R. Heckard with T. I. Chuang 1968-7-3 1973 Siskiyou just off Hwy. 5 s.e. of Black Butte and w. of Mt. Shasta (City) 1173 Comment
  CAS-BOT-BC234798  Symphoricarpos mollis Alice Eastwood 1912-7-24 1379 Siskiyou Castella Comment
  HSC18885  Symphoricarpos mollis J. O. Sawyer 1968-7-10 474 Siskiyou Floodplain of Sugar Creek near Sugar Lake. 1799 Comment
  HSC19110  Symphoricarpos mollis J. O. Sawyer 1969-7-23 1179 Siskiyou Along road near Horse Range Creek. 1341 Comment
  UC889807  Symphoricarpos mollis A. A. Heller 1915-8-24 12202 Siskiyou ne base Mt. Eddy (Metcalf's ranch) 1188 Comment
  CAS-BOT-BC245771  Symphoricarpos rotundifolius Elmer I. Applegate 1923-8-18 3872 Siskiyou Red Shale Mountain, east of Medicine Lake 2438 Comment
  CAS-BOT-BC245773  Symphoricarpos rotundifolius Wm. Bridge Cooke 1938-8-23 11578 Siskiyou Above Bolam Creek, Mount Shasta 2590 Comment
  UC60979  Symphyotrichum bracteolatum Geo. B. Grant 1902-9-1 5157 Siskiyou Mount Shasta Comment
  CAS-BOT-BC97890  Symphyotrichum eatonii Alice Eastwood 1917-9-2 s.n. Siskiyou Shasta Springs Comment
  CAS-BOT-BC98952  Symphyotrichum foliaceum K. T. Stillman 1976-9-10 496 Siskiyou Scott Bar quad. Marble Mountain Wilderness Area. Up across marble on east side of Black Mtn. 2103 Comment
  HSC29235  Symphyotrichum foliaceum var. parryi Frederick W. Oettinger 1969-8-16 1407 Siskiyou Marble Mtn. Wilderness Area, central areas of Wire Grass Meadow below English Lake 1677 Comment
  CAS-BOT-BC98438  Symphyotrichum spathulatum Henry M. Pollard 1947-9-6 s.n. Siskiyou Dillons Mt. Forest Road 1524 Comment
  CAS-BOT-BC98445  Symphyotrichum spathulatum Alice Eastwood 1921-7-25 10844 Siskiyou Bigelows, McCloud River Comment
  UC135424  Symphyotrichum spathulatum C. F. Baker 1903-9-8 3856 Siskiyou Mt. Eddy Comment
  UC572806  Symphyotrichum spathulatum W. Bridge Cooke 1937-8-17 9280 Siskiyou The Gate Mt. Shasta 2590 Comment
  CAS-BOT-BC98853  Symphyotrichum spathulatum var. intermedium Elmer I. Applegate 1923-8-21 3918 Siskiyou Willow Creek, south of Lower Klamath Marsh Comment
  OBI55527  Symphyotrichum spathulatum var. yosemitanum David J. Keil, Kathleen Keil 1992-7-21 23518 Siskiyou Klamath NF SE of Callahan on hwy 3, 2.1 mi NW of Scott Mtn summit Comment
  CHSC86457  Taraxia tanacetifolia Jenny Marr 1993-7-1 74 Siskiyou Butte Valley Wildlife Area, +/- 7 air miles NW of the town of MacDoel. Meadow NE of Meiss Lake. 1349 Comment
  CAS-BOT-BC85232  Taxus brevifolia John Thomas Howell; Gordon H. True 1972-6-8 48862 Siskiyou South of summit on road from Takilma to Happy Camp Comment
  CAS-BOT-BC85247  Taxus brevifolia Doris K. Kildale 1929-8-24 8843 Siskiyou Preston Peak 2225 Comment
  SEINET3876098 Image available Taxus brevifolia Alv Dan Youngberg 1964-8-17 34 Siskiyou Growing at West Branch Guard Station. Humbolt Meridian.; 0 671 Comment
  JEPS82442  Tellima grandiflora Gilbert Muth 1966-7-19 429 Siskiyou Marble Gap Trail Marble Mountain Wilderness Area (along first bluff) 1828 Comment
  HSC29461  Tellima grandiflora Frederick W. Oettinger 1968-9-1 639 Siskiyou Marble Mtn. Wilderness Area, SE of Abbott's Lake 1860 Comment
  CAS-BOT-BC88071  Thelypodium brachycarpum Dorothy Parker 1948-6-11 s.n. Siskiyou Yreka. Comment
  CDA25194  Thelypodium brachycarpum R. Pederson, G. Pederson 1979-9-18 Siskiyou White Lake Management Unit, Lower Klamath National Wildlife Refuge. 0 Comment
  POM228972  Thelypodium brachycarpum L. C. Wheeler 1935-6-30 3637 Siskiyou Shasta Valley, 3 miles S of Grenada. 793 Comment
  RSA17457  Thelypodium flexuosum Elmer I. Applegate 1935-6-2 9286 a Siskiyou Frenner s ranch, near north boundary of Lava Beds National Monument. Comment
  RSA60794  Thelypodium flexuosum Dorothy Parker 1948-6-22 26 Siskiyou Shore line of lower Klamath Lake 1280 Comment
  RSA66832  Thelypodium laciniatum F. W. Peirson 1923-7-19 3734 Siskiyou Laird s Landing. Comment
  CAS-BOT-BC77744  Thelypteris nevadensis W. B. C. 1956-7-16 30292 Siskiyou Above Hotlum Station, north side of Mount Shasta 1676 Comment
  HSC73350  Thermopsis macrophylla Gail Newton 1980-6-20 441 Siskiyou Near Bald Mtn. 1097 Comment
  UCD93359  Thinopyrum intermedium T. C. Fuller 1962-8-30 9498 Siskiyou 5 miles N of Klamath River, Siskiyou Mountains, E of Beaver Creek, Raggedass Gulch. 182 Comment
  JEPS54044  Thlaspi montanum var. montanum J. W. Kisling 1910-4-20 Siskiyou Edgewood Comment
  JEPS74511  Tofieldia occidentalis subsp. occidentalis W. J. Ferlatte 1966-8-16 369 Siskiyou Big Flat Hillside Trinity Alps 1524 Comment
  SEINET13750575  Tonella tenella G. D. Butler 1910-4-17 1193 Siskiyou Near Yreka. Comment
  HSC30566  Torreyochloa pallida var. pauciflora Frederick W. Oettinger, R. F. Thorne 1969-8-7 1267 Siskiyou Salmon Mtns., Pine Lake. 1768 Comment
  UC164042  Toxicoscordion paniculatum Geo. D. Butler 1909-4-27 790 Siskiyou Quartz Valley Comment
  JEPS81832  Tragopogon dubius Rimo Bacigalupi 1959-7-2 7212 Siskiyou Weed; e outskirts 1066 Comment
  RSA256613  Tragopogon dubius J. P. Smith 1974-5-27 7614 Siskiyou Along Forest Sevice Road 47N03. 1280 Comment
  RSA82893  Tragopogon dubius J. M. Tucker 1950-7-24 1945 Siskiyou On outskirts of the town of Mt. Shasta. Comment
  RSA625170  Trautvetteria caroliniensis var. occidentalis Louis C. Wheeler 1963-8-28 8289 Siskiyou Siskiyou Mountains: Clear Creek ca. 1 mile downstream from West Fork. 640 Comment
  CAS-BOT-BC519571  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1929-8-25 9020 Siskiyou Near Youngs Valley, on trail to Preston peak 1524 Comment
  CAS-BOT-BC519573  Triantha occidentalis subsp. occidentalis H. E. Brown 1897-6-11 641 Siskiyou Mt.Shasta Comment
  RSA602844  Tribulus terrestris Louis C. Wheeler 1935-7-13 3657 Siskiyou Ager. 793 Comment
  UCD78041  Trichostema simulatum Robert E. Preston 2002-6-22 1886 Siskiyou Ca. 0.6 miles SW of Cayton, on W side of Hwy 89 958 Comment
  HSC99288  Trichostema simulatum C. B. Wolf 1927-8-26 1054 Siskiyou Klamath River, 3 mi. below Gottenville Comment
  UC630778  Trifolium cyathiferum A. A. Heller 1915-7-18 12107 Siskiyou ne base Mt. Eddy; Mtcalf's Ranch 1219 Comment
  HSC71477  Trifolium dubium J. P. Smith 1973-5-5 6544 Siskiyou Scott Bar along the Scott River Comment
  JEPS95830  Trifolium eriocephalum subsp. eriocephalum Vernon H. Oswald and L. Ahart 1999-7-5 9806 Siskiyou Gazelle Mtn. on road 41N03 0.2 mi southeast of Gazelle-Callahan Hwy.: T41N R7W Sect. 3, 4950 ft, yellow pine forest, serpentine substrate 1508 Comment
  CHSC91386  Trifolium hirtum Lowell Ahart; John Dittes 2005-6-10 12074 Siskiyou Overflow area, on the north side of the Shasta River, 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
  JEPS41328  Trifolium howellii Ruby Van Deventer 1939-7-18 55 Siskiyou s Little Greyback Mtn (Poker Flat) 1524 Comment
  JEPS48905  Trifolium hybridum Geo. D. Butler 1908-7-2 382 Siskiyou near Yreaka (Butler's Ranch) Comment
  RSA183650  Trifolium hybridum Gilbert Muth 1965-8-16 228 Siskiyou Marble Valley Comment
  HSC18995  Trifolium longipes J. O. Sawyer 1969-7-18 1416 Siskiyou Head of S Russian Creek 1829 Comment
  HSC58923  Trifolium longipes Marvin Butler 1971-7-6 20 Siskiyou Near El Capitan, close to Cave Junction 1 Comment
  HSC69178  Trifolium longipes Maralyn A. Renner 1980-8-6 2337 Siskiyou Cracker Meadow 1555 Comment
  SEINET12147830  Trifolium longipes H. P. Chandler 1901-1 1580 Siskiyou North Coast Ranges,ridges and meadows near Marble Mt 1829 Comment
  RSA237890  Trifolium longipes subsp. elmeri Frederick W. Oettinger, Robert F. Thorne 1969-8-8 1298 Siskiyou Sundew Bog near English Lake. Salmon Mtns; High Lake Basins in the vicinity of English Peak; Marble Mountain Wilderness Area. 1829 Comment
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  HSC92981  Trifolium longipes subsp. shastense Jennifer Whipple 1976-6-17 1028 Siskiyou Near Durney Lake 2073 Comment
  UC16580  Trifolium longipes var. hansenii Harley P. Chandler 1901-6-1 1580 Siskiyou near Marble Mtn; North Coast Ranges 1828 Comment
  CDA27990  Trifolium macrocephalum J. R. Grisham 1959-4-29 Siskiyou B. Rudiman property, Yreka. 0 Comment
  JEPS48901  Trifolium microcephalum Geo. D. Butler 1908-6-28 380 Siskiyou Butler's Ranch Quartz Valley Comment
  JEPS83895  Trifolium pratense Wayne Roderick Aug 1975 Siskiyou Cook and Green Pass Syskiyou Mtns Comment
  UC1045249  Trifolium pratense W. B. Cooke 1940-7-5 15235 Siskiyou Bear Springs meadow Mount Shasta 1524 Comment
  HSC93002  Trifolium productum Jennifer Whipple 1977-8-6 2236 Siskiyou Dale Creek drainage on the N face of Mt. Eddy 2195 Comment
  UCD78064  Trifolium productum Robert E. Preston 2001-6-23 1607 Siskiyou Klamath National Forest, n-facing slope of Rainbow Mtn, T42N R1W nw 1/4 of nw 1/4 Section 23 1981 Comment
  CAS-BOT-BC230884  Trifolium productum Dorothy Parker 1959-7-5 734 Siskiyou Salmon Mt. 1676 Comment
  JEPS47264  Trillium albidum Geo. D. Butler 1909-4-14 669 Siskiyou Humbug Comment
  CAS-BOT-BC520840  Trillium albidum A. M. Vollmer; L. Beane 1951-6-2 71 Siskiyou Road between Streamline Lodge and Deer Camp, north of Klamath River Highway Comment
  POM109157  Trillium albidum Geo D. Butler 1910-4-3 1168 Siskiyou Humbug Creek. Comment
  UC164025  Trillium albidum Geo. D. Butler 1908-7-19 1087 Siskiyou Humbug <road> Comment
  RSA378198  Trillium kurabayashii Anstruther Davidson 1520 Siskiyou Unspecified. Comment
  HSC27037  Trisetum canescens J. P. Smith, J. O. Sawyer 1972-9-14 5814 Siskiyou Trail to Little Duck Lake 1829 Comment
  JEPS80516  Trisetum canescens Gilbert Muth 1966-7-22 433 Siskiyou meadow below Marble Rim; Marble Mt. Wilderness Area 2011 Comment
  SEINET8495330  Trisetum cernuum D. W. Taylor 2006-8-8 19594 Siskiyou Dry Creek peak (ridge ca. 12 air miles NE of Mt Shasta summit). at headwaters Antelope Creek. Rainbow Mountain 7 1/2' USGS quadrangle. Shaded north facing cliffs of the cirque headwall on the north face of the peak. 2195 Comment
  HSC19252  Trisetum spicatum J. O. Sawyer 1968-7-22 557 Siskiyou Between Handcock and Diamond Lakes 1951 Comment
  RSA352885  Trisetum spicatum M. B. Dunkle 1945-1 9318 Siskiyou Klamath National Forest, Marble Mountains. 2439 Comment
  UC1265674  Triteleia crocea Rolf Y. Berg 1980-6-25 Siskiyou on road from Seiad Valley to Cook and Green Pass; Klamath River Region, Horsetail Falls Comment
  UC1045310  Triteleia crocea var. modesta W. Bridge Cooke 1940-6-6 15076 Siskiyou moist places along Castle Lake road 1615 Comment
  HSC58903  Triteleia hyacinthina Marvin Butler 1971-7-21 188 Siskiyou Near Bell Echo Camp, close to town of Cave Junction. 1433 Comment
  RSA120195  Triteleia hyacinthina S. S. Tillett 1956-7-11 682 Siskiyou Meadows on both sides of Scott Mtn. divide, near campground; Siskiyou-Trinity cos. line, about 8 miles SE of Callahan 1616 Comment
  UC766338  Triteleia ixioides subsp. anilina W. Bridge Cooke 1940-6-6 15083 Siskiyou along Castle Lake Road Comment
  CAS-BOT-BC524313  Triteleia ixioides subsp. anilina Francia Chisaki; Gene B. Newcomb 1958-6-21 1151 Siskiyou Squaw Valley Creek, on road to ice caves north of McCloud 1158 Comment
  CAS-BOT-BC524321  Triteleia ixioides subsp. anilina L. E. Smith 1913-6-12 360 Siskiyou Sisson Comment
  HSC69238  Tsuga mertensiana Maralyn A. Renner 1980-9-1 2707 Siskiyou S side of Devil's Punchbowl 1829 Comment
  CAS-BOT-BC80252  Tsuga mertensiana subsp. grandicona Ira L. Wiggins 1955-7-27 13566 Siskiyou Caribou Lake, Salmon-Trinity Alps Primitive Area 2042 Comment
  CAS-BOT-BC74095  Turritis glabra John Thomas Howell 1937-7-21 13201 Siskiyou South Fork of Salmon River near Big Flat. 1524 Comment
  HSC18869  Umbellularia californica J. O. Sawyer 1968-9-10 673 Siskiyou 1524 Comment
  RSA37425  Umbellularia californica Marion Ownbey, Fred G. Meyer 1940-7-8 2224 Siskiyou Dry hillside along Indian Creek. 12 miles above Happy Camp. Comment
  SEINET516316  Urtica dioica subsp. holosericea Vernon H. Oswald 1998-9-16 9639 Siskiyou Hwy. 161 adjacent to a marsh at the Lower Klamath NWR 5.3 mi E of Hwy. 97. 1244 Comment
  HSC31964  Vaccinium cespitosum Steve Selva, Roger Jensen 1974-8-16 14 Siskiyou N shore of Sugar Lake. Comment
  JEPS128461  Vaccinium cespitosum Julie Kierstead Nelson with Martin Lenz 2015-6-18 2015 -062 Siskiyou Headwaters of West Fork Parks Creek, 2 miles NNE of China Mountain; 7 miles W of town of Weed. Comment
  UC1409419  Vaccinium cespitosum Frederick W. Oettinger 1969-7-14 1014 Siskiyou n shoreline Charmaine Lake; Salmon Mountains, Marble Mountain Wilderness Area, English P 1920 Comment
  CAS-BOT-BC199229  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  CAS-BOT-BC199230  Vaccinium membranaceum Louis C. Wheeler 1934-8-16 3162 Siskiyou Klamath National Forest. Johnson Dairy 1645 Comment
  HSC19113  Vaccinium membranaceum J. O. Sawyer 1969-8-5 1964 Siskiyou Alluvial terrace along South Sugar Creek 1692 Comment
  CAS-BOT-BC199478  Vaccinium parvifolium Doris K. Kildale 1930-8-24 9032 Siskiyou Rattlesnake Meadow near Preston Peak 1676 Comment
  HSC19099  Vaccinium scoparium J. O. Sawyer 1969-6-13 1060 Siskiyou W of Little Duck Lake 2043 Comment
  UC73558  Vaccinium uliginosum subsp. occidentale Milo S. Baker 1898-8-1 478 Siskiyou Medicine Lake Comment
  UCD137622  Valeriana sitchensis Alfred H. Murphy 1961-7-19 61 E Siskiyou Marble Mtns., Klamath National Forest, Sky High Valley, north end. 1584 Comment
  CHSC95123  Valeriana sitchensis subsp. sitchensis L. P. Janeway 2006-7-2 8750 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 above the creek. 1762 Comment
  JEPS84279  Valeriana sitchensis subsp. sitchensis L. R. Heckard with J. Hickman et al. 1986-7-17 6536 Siskiyou se of Condrey Mt. (road end area and camp overlooking s end of Alex Hole) 1980 Comment
  CDA6693  Valerianella locusta T. C. Fuller 1962-5-17 8741 Siskiyou Behind El Rancho Motel, Yreka. 0 Comment
  CAS-BOT-BC76064  Vancouveria hexandra Lillian Mott 1976-7-9 47 LM76 Siskiyou Trail to spring, Cook and Green Pass. 1463 Comment
  CAS-BOT-BC529106  Veratrum californicum Doris K. Kildale 1928-8-19 6501 Siskiyou English Lake, head of north Fork of Salmon River 1828 Comment
  CAS-BOT-BC529109  Veratrum californicum H. A. Thomas; J. H. Thomas 1954-7-24 4514 Siskiyou Salmon - Trinity Mts. Vicinity of Rush Lake and Rush Creek Meadow. About 9 miles E of Cecilville. 1981 Comment
  HSC96427  Veratrum californicum var. californicum Gordon Leppig, J. Cromwell 1997-7-25 572 Siskiyou Klamath National Forest, Russian Wilderness, Little Duck Lake 2200 Comment
  RSA50160  Verbascum blattaria E. K. Balls 1949-7-10 13952 Siskiyou Eddy's Gulch, 2 miles from Sawyer's Bar on road to Cecilville. 762 Comment
  RSA74738  Verbascum blattaria Albert M. Vollmer, L. Beane 1951-6-2 48 Siskiyou Klamath River Hwy, between US 99 and Gottville. Comment
  SD51281  Verbascum blattaria Darley F. Howe 1961-8-3 3131 Siskiyou 4.1 miles east of Happy Camp on #96 Comment
  POM211271  Verbena lasiostachys var. lasiostachys Louis C. Wheeler 1934-10-11 3315 Siskiyou Siskiyou Mountains: Oak Knoll Ranger Station, Klamath River. 671 Comment
  HSC19340  Veronica americana J. O. Sawyer 1969-7-11 859 Siskiyou Ravine above C.C.C. road. 1280 Comment
  RSA517033  Veronica anagallis-aquatica L. R. Heckard 1971-8-28 2781 Siskiyou Under and east of bridge across Shasta River, ca 5 mi N of Yreka on old US Hwy 99. 732 Comment
  CAS-BOT-BC540706  Veronica copelandii Dana York 2012-7-21 3138 Siskiyou Siskiyou Mountains: Rogue River-Siskiyou National Forests, Red Butte Wilderness, NE Slope of Red Butte 1925 Comment
  HSC91114  Veronica copelandii Jennifer Whipple 1978-10-6 2398 Siskiyou Mt. Eddy, N-facing slopes in the Eddy Creek Drainage 2317 Comment
  CDA42020  Veronica peregrina var. xalapensis L. Ahart 2005-6-1 12059 Siskiyou Near a poor dirt road, about 80 yards north of the pump house along the Shasta River, about 1.9 miles (air) south of Highway 99/97 Cutoff, about 6 miles (air) east-southeast of Grenada. Comment
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Oct 5 2019
  CHSC1914  Veronica serpyllifolia subsp. humifusa E. G. Copeland 1939-6-1 Siskiyou Mt. Eddy. 1828 Comment
  CDA17135  Vicia americana G. F. Hrusa 2001-6-6 15849 Siskiyou Siskiyou Mountains; Nr. summit of pass betw. Happy Camp, CA and O'Brien, Oregon at turnoff to Bolan Lake, at Oregon border. 1424 Comment
  SBBG15608  Vicia americana subsp. americana D. Myrick 1961-6-20 282 Siskiyou meadow at Bear Springs, S slope of Mt Shasta 1676 Comment
  HSC36869  Vicia americana var. americana J. P. Smith 1974-5-26 7544 Siskiyou Along FS Rd. 47N03 1524 Comment
  UC1409224  Vicia americana var. americana Frederick W. Oettinger 1969-7-29 1103 Siskiyou shore of Uncle's Lake (vicinity of English Peak, w Siskiyou County); Salmon Mountains, Marble Mountain Wilderness Area 1828 Comment
  UC454615  Vicia americana var. americana I. J. Condit 1911-7-13 Siskiyou Dunsmuir Comment
  HSC2330  Vicia americana var. americana Geo. D. Butler 1910-5-30 1440 Siskiyou Humbug Mtn. 1220 Comment
  RSA47988  Vicia americana var. americana Roxana S. Ferris, Laura Lorraine, Daniel F. Ferris 11733 Siskiyou French Creek Logging Road west of Callahan. 1220 Comment
  SEINET11970799  Viola adunca H. P. Chandler