Search Results — 2000 specimen records retrieved (1394 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78052  Abies grandis Doris K. Kildale 1927-2-20 2964 Humboldt Korbel Hill at Angel's Ranch 304 Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  HSC37348  Abies grandis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 478 Humboldt Along Lost Man Creek. 38 Comment
  SD136394  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  UC502902  Abies grandis Joseph P. Tracy 1932-6-26 10261 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC26920  Abronia latifolia Brad Klipfel 1973-7-30 217 Humboldt Near Samoa Comment
  HSC49509  Abronia latifolia R. York 1979-5-18 298 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC100573  Abronia latifolia Carl C. Marshall May 1885 38 Humboldt Sea shore, Humboldt Bay. Comment
  HSC41124  Abronia umbellata var. breviflora Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-9-26 3265 Humboldt Along beach S of Fern Canyon. Comment
  UCD112495  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt SE of Forest Service Nursey, ca. 2 miles SE of Crannell and ca. 4 miles E of US Highway 101. Comment
  POM89162  Acer circinatum Joseph P. Tracy 1920-8-1 5346 Humboldt Kneeland Prairie Lawrence Creek 457 Comment
  RSA183640  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  RSA386075  Acer circinatum H. E. McMinn 1931-6-28 2549 Humboldt Orick to Requa Comment
  UC205486  Acer circinatum Joseph P. Tracy 1920-8-1 5346 Humboldt Lawrence Creek Kneeland Prairie 457 Comment
  CAS-BOT-BC331585  Acer macrophyllum Doris K. Kildale 1927-4-17 3090 Humboldt Briceland Bridge, 0.5 mile W of Garterville 114 Comment
  HSC2815  Acer macrophyllum J. Sandborg, F. Sandborg May 1968 2 Humboldt Bluff Creek near Notice Creek, above Notice Creek 793 Comment
Read comments
Nov 1 2013
  HSC57033  Acer macrophyllum Overton, Butler 1979-7-24 9664 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC205627  Acer macrophyllum Joseph P. Tracy 1920-10-24 5404 Humboldt near Korbel (North Fork of Mad River); Northern Coast Ranges, North Fork of Mad River 60 Comment
  HSC99504  Achillea millefolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 164 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC963846  Achillea millefolium H. E. Parks and S. T. Parks 1943-8-1 24246 Humboldt along coastal hills Egg Point; North Coast Ranges, Trinidad 121 Comment
  SEINET8072990  Achlys triphylla W. Roderick 1967-7-22 s.n. Humboldt Ca 5 miles E of Carlotta. 46 Comment
  UCD50691  Achnatherum lemmonii A. H. Murphy 1951-6-25 74 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  UCD103756  Acmispon denticulatus R. Tofsrud 1951-1 s.n. Humboldt Location unknown. Comment
  HSC40264  Acmispon micranthus Linda M. Barker 1976-4-30 1410 Humboldt 3 mi. W of Arcata Comment
  HSC71443  Acmispon micranthus J. P. Smith 1971-10-9 5047 Humboldt Mad River above the Fish Hatchery. Comment
  HSC71716  Acmispon nevadensis var. nevadensis M. A. Baker 1980-6-26 2439 Humboldt Near Sims Creek 610 Comment
  UC1212576  Aconitum columbianum Francia Chisake and Helen Sharsmith 1959-8-22 4752 Humboldt bog at Happy Camp (just over line from Trinity Co.); Inner N. Coast Ranges, Happy Camp 914 Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS60388  Actaea rubra Lincoln Constance 1934-6-1 771 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Cr. flat grove (mouth of Bull Creek) mouth of Bull Creek; Bull Creek Region, S. Fork Eel R. 45 Comment
  SD73189  Adenocaulon bicolor Darley F. Howe 1969-6-4 Humboldt 14.6 miles east of Alton on #36 89 Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  UC1102641  Adiantum X tracyi J. Neeman 1948-1 Humboldt near Garberville Comment
  CAS-BOT-BC62293  Adiantum aleuticum Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC13040  Adiantum aleuticum C. Kline, D. Santana Oct 1970 44 Humboldt HSC Campus Comment
  HSC952  Adiantum aleuticum C. B. Wolf 1927-8-28 1170 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  UC62712  Adiantum aleuticum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5721 Humboldt Supply Creek Comment
  POM182348  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville 30 Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  OBI1088  Adiantum capillus-veneris R. J. Rodin 1938-6-30 s.n. Humboldt Richardson Grove State Park (Redwoods) Comment
  UC1222302  Aesculus californica Joseph P. Tracy 1950-6-18 18847 Humboldt Petrolia Comment
  UC479099  Aesculus californica Marcus E. Jones, A. M. 1931-7-12 28938 Humboldt Alton Comment
  SEINET12232136  Aesculus californica J. P. Tracy 1950-1 18847 Humboldt Petrolia Comment
  HSC57452  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-26 10272 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1199315  Ageratina occidentalis Joseph P. Tracy 1939-8-20 16431 Humboldt near Blue Lake; Mad River 15 Comment
  HSC12532  Agoseris grandiflora Jos. Burtt Davy 1899-6-21 5727 Humboldt Hoopa Valley Comment
  HSC44098  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-8-6 3696 Humboldt N of Alder Springs 1585 Comment
  SEINET11854997  Agoseris grandiflora J. P. Tracy 1950-1 19047 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  SEINET202732 Image available Agoseris grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt Trinty River Valley at Willow Creek. 152 Comment
  UC204168  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt grassy borders of field Eureka; Northern Coast Ranges 0 Comment
  UC1222930  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19225 Humboldt 1 mi s, along roadside Friday's Camp; Grouse Mountain 1524 Comment
  UC1152034  Agrostis capillaris Joseph P. Tracy 1951-6-26 19547 Humboldt Snow Camp Meadow Comment
  UC526894  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt on bluffs facing ocean North Coast Ranges, Stone Lagoon 6 Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  UC1103389  Agrostis exarata Joseph P. Tracy 1950-7-16 19048 Humboldt open grassy flats Trinidad 3 Comment
  UC1145061  Agrostis exarata Harold E. Parks and Joseph P. Tracy 1941-7-5 11489 Humboldt Coon Creek, east side of Trinity River below Willow Cr. 152 Comment
  UC184150  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC188818  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5885 Humboldt Francis Range Comment
  CAS-BOT-BC139696  Agrostis gigantea Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek. Klamath River. Comment
  CAS-BOT-BC139503  Agrostis hallii A. G. Vestal 1937-6-14 s.n. Humboldt Along Redwood Highway 14 miles south of Garberville. Comment
  UCD52561  Agrostis hallii P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  UC212879  Agrostis idahoensis Joseph P. Tracy 1919-9-22 5268 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UCD53043  Agrostis microphylla Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad. 3 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  RSA10024  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Bald Mountain; near High Prairie 1067 Comment
  CAS-BOT-BC139060  Agrostis pallens Doris K. Kildale 1925-8-17 1261 Humboldt Trinity Summit. 1917 Comment
  UC589898  Agrostis pallens H. S. Yates 1936-6-16 5685 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  CAS-BOT-BC138572  Agrostis variabilis Joseph P. Tracy 1930-7-16 8948 Humboldt Northern Coast Ranges. South Fork Mountain. Along summit near Blake Lookout. 1737 Comment
  BLMAR32  Aira caryophyllea Brad Barr June, 1982 32 Humboldt King range, Lake Ridge near pond Comment
  HSC34956  Aira caryophyllea Thomas W. Nelson 1975-5-24 1870 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC65424  Aira caryophyllea J. P. Smith, J. O. Sawyer 1973-5-12 6683 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC8849  Aira caryophyllea Rudolf W. Becking 1961-7-3 Humboldt Korbel Kerr Ranch study plots Comment
  SEINET195007  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt Humboldt Camp 10 miles south of Dyerville Comment
  UC1103298  Aira caryophyllea Joseph P. Tracy 1922-4-30 6017 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103300  Aira caryophyllea Joseph P. Tracy 1914-7-5 4553 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC138338  Aira caryophyllea var. caryophyllea Doris K. Kildale 1926-5-2 1890 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  UC526677  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC460749  Allium amplectens Doris K. Kildale 1925-6-14 676 Humboldt Head of South Yager Creek. Bald Hills 914 Comment
  JEPS2715 Image available Allium bolanderi H. N. Bolander 1866-1 6556 Humboldt Eureka Trail, Humboldt Co. Comment
  CAS-BOT-BC469016  Allium falcifolium Thomas W. Nelson; James L. Nelson 1980-6-10 5400 Humboldt Blocksburg Quad.; Along Swayback Ridge 4-wheel drive road 1.25 miles south of junction with Forest Service road. Comment
  CAS-BOT-BC135845  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-27 5947 Humboldt Humboldt-Trinity County line. Along low ridge northeast of small vernal pond at north base of Red Lassic - Six Rivers National Forest 1676 Comment
  JEPS81076  Allium hoffmanii Thomas W. Nelson and Jane P. Nelson 1980-6-27 5951 Humboldt saddle between two peak e Mount Lassic (non-numbered section e of Sec. 36); Six Rivers National Forest, Blocksburg Quad. 1767 Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC666889  Allium validum Joseph P. Tracy 1932-7-13 10515 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC170945  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville on Van Duzen River 228 Comment
  UC1197954  Alnus rhombifolia Joseph P. Tracy 1922-12-31 6134 Humboldt Cummings Creek Northern Coast Ranges, Van Duzen River (near Carlotta) 30 Comment
  CAS-BOT-BC169535  Alnus rubra Doris K. Kildale 1928-7-29 5919 Humboldt Bear River at Capetown Comment
  HSC81811  Alnus rubra Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  SEINET197713  Alnus rubra J. M. Tucker 1948-9-5 1865 Humboldt Along Hwy 101 3 mi S of Scotia Comment
  UC1197948  Alnus rubra Joseph P. Tracy 1924-8-17 6823 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UC1100224  Alopecurus geniculatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1164 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  UC1103315  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt s. end of Humboldt Bay (Salmon Creek Valley); Salmon Creek Valley 15 Comment
  UC677600  Alopecurus geniculatus A. A. Beetle with Stebbins and Tracy 1942-6-2 3458 Humboldt s. of Eureka (Loleta Swamp); Loleta Swamp Comment
  CAS-BOT-BC13708  Ambrosia chamissonis Le Roy Abrams 1916-7-18 6118 Humboldt Arcata to Trinidad Comment
  UC665538  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt sandy beaches at mouth Little River Comment
  UCD170774  Ambrosia chamissonis Gordon Leppig 1998-5-25 786 Humboldt Big Lagoon State Park. Between ocean and Big Lagoon. 2 Comment
  HSC71057  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3391 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC99379  Amelanchier alnifolia var. semiintegrifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 28 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC55618  Amelanchier pallida Overton, Butler 1979-7-23 9521 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC96014  Amelanchier pallida Juha Pykala, D. H. Norris 1987-5-19 708 Humboldt Horse Mtn. Rd. at intersection of rd. to ski lift 1400 Comment
  RSA46661  Amelanchier pallida Doris K. Kildale 1938-6-5 15389 Humboldt Horse Mountain Comment
  UC1198747  Amelanchier utahensis Joseph P. Tracy 1947-8-24 17900 Humboldt at edges Box Camp Meadow (near Box Camp); Trinity Summit 1463 Comment
  UC183554  Amelanchier utahensis Joseph P. Tracy 1913-6-17 4188 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC666831 Image available Amelanchier utahensis Joseph P. Tracy 1933-6-13 12573 Humboldt Hoopa Mountain; near summit on road from Hoopa w to Bair's 1066 Comment
  CAS-BOT-BC137867  Ammophila arenaria Dziekanowski; Dunn; Bennett 1976-8-6 2504 Humboldt In the vicinity of a state park on the beach opposite McKenleyville. 3 Comment
  UC1103317  Ammophila arenaria Joseph P. Tracy 1947-7-3 17767 Humboldt sand dunes at mouth of Little R. 6 Comment
  UC1222278  Amsinckia intermedia Joseph P. Tracy 1948-5-31 18023 Humboldt 2 mi w of Bridgeville (roadside, at the big rock) Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  HSC17831  Anagallis arvensis D. B. Bader 1963-3-1 7 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC17832  Anagallis arvensis Allan R. Marshall 1962-5-5 4 Humboldt Along N Fork of Mad River at Camp Bauer 76 Comment
  HSC23719  Anagallis arvensis Tim Baroni 1971-7-5 104 Humboldt 8 mi. E of Petrolia Comment
  HSC17827  Anagallis arvensis Frances Oldridge 1946-1 Humboldt College Hill Comment
  HSC79547  Anagallis arvensis Kenneth Clark 1980-4-18 572 Humboldt 300 yds. E of Dead Man's Gulch; widespread through Shelter Cove 5 Comment
  SDSU906  Anagallis arvensis Leslie Hickson 1990-4-15 15 IV90G Humboldt From Oak St., east pf Apple Valley Lane ca. 200 ft. on right side of road under two apple trees. Eureka, Ca. Comment
  CAS-BOT-BC45141  Anaphalis margaritacea Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC27391  Anaphalis margaritacea Thomas W. Nelson 1970-9-3 230 Humboldt Mad River. Comment
  HSC4616  Anaphalis margaritacea Roxana S. Ferris 1937-8-21 9387 Humboldt Shelter Cove Comment
  HSC57007  Anaphalis margaritacea Overton, Butler 1979-7-24 9594 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC76343  Anaphalis margaritacea D. K. Imper 1981-7-21 890 Humboldt Near Table Bluff 38 Comment
  RSA247393  Anaphalis margaritacea Gary D. Wallace 1966-9-12 702 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  RSA416577  Anaphalis margaritacea B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UC963845  Anaphalis margaritacea H. E. Parks and S. T. Parks 1943-8-1 24237 Humboldt along highway Stone Lagoon Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  RSA304843  Anemone deltoidea James R. Shevock 1971-5-30 681 Humboldt Biants Ave, Humboldt St. Park. 152 Comment
Read comments
Oct 20 2009
  UC503044  Anemone oregana Joseph P. Tracy 1927-6-12 8130 Humboldt Horse Mtn North Coast Ranges (in serpentine belt) 1524 Comment
  HSC56311  Angelica arguta Overton, Butler 1979-8-2 12641 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC585998  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  UC314601  Angelica hendersonii Joseph P. Tracy 1923-9-23 6560 Humboldt Northern Coast Region, Alton Alton Alton Alton; Northern Coast Region, Alton 30 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  UC1197374  Angelica tomentosa Joseph P. Tracy 1939-8-16 16411 Humboldt Horse Mountain 1432 Comment
  HSC98637  Angelica tomentosa Cara Witte 2007-7-25 578 Humboldt Forest Service Road 5N10. Approximately 1/2 mile from intersection with Forest Service Road 5N41. 1283 Comment
  UC642243  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UCD127179  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  UCD127180  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  HSC39181  Anisocarpus madioides D. E. Anderson, J. P. Smith 1971-6-28 - 1220 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC70410  Anisocarpus madioides M. A. Baker 1980-6-7 1831 Humboldt Near Ammon Creek 732 Comment
  CAS-BOT-BC69103  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt Trinity Summit. Near ranger station. 1828 Comment
  POM247535  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt Trinity Summit, near ranger station Comment
  JEPS89480  Antennaria suffrutescens Dean W. Taylor 1991-8-15 12303 Humboldt ridge 1 mi. w. Horse Mt.; N. Coast Ranges 1493 Comment
  HSC90322  Anthoxanthum occidentale C. Wilson, P. Kittelson, M. Hardig 1992-5-2 61 Humboldt 50 m up dirt road E of Redwood Science Lab. 61 Comment
  HSC8934  Anthoxanthum odoratum H. E. Parks, S. T. Parks Apr 1952 24444 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC8937  Anthoxanthum odoratum S. R. Johnson 1965-4-16 37 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC8942  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  RSA129295  Anthoxanthum odoratum H. S. Yates 1936-6-18 5737 Humboldt 2 miles N. of Big Lagoon. Rocky Pt. 30 Comment
  SEINET3918448  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mile west of Barry Road.; 0 Comment
  HSC62743  Anthriscus caucalis J. M. DiTomaso 1979-4-21 882 Humboldt Clam Beach Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  UCR46782  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Road 9.1 mi south of jct with Mountain View Road. 446 Comment
  UC154129  Aphanes occidentalis J. P. Tracy 1904-4-24 2033 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC154187  Apocynum androsaemifolium Mrs. M. H. Manning 1900-1 Humboldt near Hupa Hupa Comment
  SD46627  Apocynum androsaemifolium E. K. Balls, L. W. Lenz 1956-6-12 21661 Humboldt 4.4 miles southwest from Willow Creek, along US 299, Willow Creek to Arcata. 365 Comment
  HSC44506  Arabis glabra Brad Klipfel 1973-7-1 121 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57106  Aralia californica Overton, Butler 1979-7-25 9842 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  RSA24080  Aralia californica C. B. Wolf 1941-3-2 s.n. Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  HSC7595  Arbutus menziesii D. E. Anderson 1965-5-8 3665 Humboldt ca. 5 mi W of Lord Ellis summit along Hwy 299 Comment
  UC154180  Arbutus menziesii P. E. Goddard 1901-7-12 65 Humboldt Hupa Valley Comment
  UC1389155  Arctostaphylos A. E. Wieslander 1931-5-17 2567 Humboldt Orick-Orleans rd Hoopa Quadrangle, Bald Hills Comment
  UC585941  Arctostaphylos Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC1225904  Arctostaphylos X candidissima Joseph P. Tracy 1947-7-9 17839 Humboldt Horse Mountain 1432 Comment
  JEPS42534  Arctostaphylos canescens Joseph P. Tracy 1918-5-1 4906 Humboldt hillside towards Iaqua Buttes; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC23753  Arctostaphylos columbiana Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, coastal terrace Comment
  CAS-BOT-BC23776  Arctostaphylos columbiana Doris K. Kildale 1926-8-15 2528 Humboldt Willow Creek, Upper Flat 182 Comment
  CAS-BOT-BC23798  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point Comment
  UC1198661  Arctostaphylos columbiana Joseph P. Tracy 1928-3-4 8403 Humboldt Miranda South Fork of Eel River 121 Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  SEINET11989090  Arctostaphylos columbiana var. tracyi R. Gankin, Hildreth, W. R. 1967-1 1170 Humboldt 21.4 mi E of US 101 on Bald Hills Rd (from Orick), French Camp Ridge Comment
  UCSB11336  Arctostaphylos glandulosa Zinke, P. 1950-10-9 Humboldt King Peak 1219 Comment
  HSC101662  Arctostaphylos glandulosa subsp. glandulosa J. P. Smith, J. O. Sawyer 2011-4-23 13123 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  UC1193149  Arctostaphylos glandulosa subsp. glandulosa G. W. Tourtillott 1950-10-11 33 Humboldt 1 1/2 mi mi ne Horse Mt.; Quad 28D4 609 Comment
  CAS-BOT-BC38838  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  JEPS38980  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585963  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC31439  Arctostaphylos nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5557 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC585954  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14370 Humboldt Salmon Summit 1950 Comment
  HSC7703  Arctostaphylos patula J. Pursell 1964-11-1 1112 Humboldt 3 mi. S of Hoopa on Hwy. 96 Comment
  CAS-BOT-BC43985  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  HSC7731  Arctostaphylos uva-ursi L. H. Myers 1963-5-5 28 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  UCD16179  Arctotheca calendula J. DiTomaso 2000-8-14 s.n. Humboldt West of town of Ferndale, East of Centerville Beach, along Centerville Rd., at Pries Dairy, near Russ Creek. 200 Comment
  HSC16904  Armeria maritima subsp. californica R. J. Vernimen 1963-4-27 41 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC48771  Armeria maritima subsp. californica Brad Klipfel 1975-5-22 618 Humboldt Near city of Eureka airport S of Samoa Comment
  RSA245251  Armeria maritima subsp. californica David K. Smith 1968-10-11 6 Humboldt 3 mi S of Trinidad. Comment
  UCR122371  Armeria maritima subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7017 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC82100  Arnica cernua Harley P. Chandler 1901-6-1 1298 Humboldt [Hupa] Hoopa Indian Reservation 609 Comment
  HSC46306  Arnica cernua J. P. Smith, J. O. Sawyer 1973-5-12 6702 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC4712  Arnica cernua D. E. Anderson 1965-6-1 3753 Humboldt Horse Mountain. 1220 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  CAS-BOT-BC94772  Arrhenatherum elatius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  SBBG62497  Artemisia douglasiana H. E. Parks -May-1940 24178 Humboldt Little River Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  RSA15563  Artemisia pycnocephala C. B. Wolf 1927-8-29 1206 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  RSA24049  Artemisia pycnocephala C. B. Wolf 1940-11-10 9782 Humboldt Coast south of mendocino- 1.8 mi. N of where road turns inland to Petrolia. 8 Comment
  SD42225  Artemisia pycnocephala Carl B. Wolf 1940-11-10 3868 Humboldt Coast south of Mendocino, 1.8 miles north of where road turns inland to Petrolia 24 Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  JEPS17992  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt near lagoon and lighthouse Humboldt Bay (between Fairhaven and end of sandy point off Eureka) Comment
  RSA28780  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  JEPS45624  Aruncus dioicus var. pubescens W. L. Jepson 1902-7-11 2011 Humboldt South Fork Trinity River; Martin's Ranch Comment
  CAS-BOT-BC453343  Aruncus dioicus var. vulgaris Volney Rattan 1878-6-16 s.n. Humboldt Mad River Comment
  RSA46470  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  POM279301  Asarum caudatum Lyman Benson 1928-7-12 s.n. Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  SDSU2540  Asarum caudatum Harvey 1938-8-13 2242 Humboldt Humbolt State Redwood Park. Comment
  SEINET8189642 Image available Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  HSC57099  Asarum hartwegii Overton, Butler 1979-7-25 9828 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC65474  Asarum hartwegii Gail Newton 1980-6-24 560 Humboldt Near Ladder Rock 1570 Comment
  RSA46489  Asclepias cordifolia Doris K. Kildale 1926-5-2 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC65944  Aspidotis densa L. R. Abrams 1918-6-15 7123 Humboldt Brannan Mt near Willow Creek 1371 Comment
  UC1541684  Aspidotis densa H. E. Parks and J. P. Tracy 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  RSA686386  Aspidotis densa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain Trail 915 Comment
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  UC1174493  Astragalus umbraticus Volney Rattan 1878-1 Humboldt Comment
  UC302116  Astragalus umbraticus Joseph P. Tracy 1926-6-6 7559 Humboldt on road w Hoopa Valley (Hoopa Mountain); Northern Coast Ranges, , w <of> Hoopa Valley 914 Comment
  HSC75271  Asyneuma prenanthoides J. O. Sawyer, D. A. Thornburgh 1980-9-9 4085 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC76301  Athyrium filix-femina var. cyclosorum Teresa Prendusi 1981-7-9 176 Humboldt Near Cedar Camp. 1268 Comment
  HSC44042  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-9-3 3727 Humboldt Growing along Cr. draining N from pond above Alder Spring 1585 Comment
  UC183747  Athysanus pusillus Joseph P. Tracy 1913-6-17 4170 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  SEINET10479114  Atriplex patula subsp. hastata Mary Susan Taylor 1982-10-24 Taylor 5177 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC95384  Atriplex prostrata Andrea Pickart 2002-8-8 191 Humboldt Arcata Marsh at end of I st. 0 Comment
  HSC33719  Azolla microphylla Scott M. Kruse 1975-5-24 55 Humboldt Samoa Dunes, off Samoa Blvd. across from boat landing Comment
  CAS-BOT-BC98028  Baccharis pilularis Elmer I. Applegate 1923-9-12 3990 Humboldt Stone Lagoon Comment
  RSA46906  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Hill 30 Comment
  UCD129438  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt 3 miles west of Arcata. Comment
  HSC39776  Baccharis pilularis subsp. pilularis Peter Sorensen 1976-7-12 Humboldt King Salmon Comment
  HSC26635  Balsamorhiza deltoidea Thomas W. Nelson 1971-5-31 457 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  POM118631  Barbarea vulgaris Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC29726  Bellardia trixago J. D. Ackerman, A. M. Montalvo 1973-5-6 74 Humboldt Avenue of the Giants, Redcrest Comment
  CAS-BOT-BC106354  Bellis perennis W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  UC34578  Bellis perennis Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  JEPS26214  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp 1402 Comment
  HSC38080  Berberis aquifolium Thomas W. Nelson, James Nelson 1976-5-30 2627 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  HSC65099  Berberis aquifolium var. aquifolium J. P. Smith, J. O. Sawyer 1973-5-12 6687 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC76280  Berberis nervosa Denis Kearns 1981-7-8 146 Humboldt Near Bluff Creek 622 Comment
  UC1198383  Berberis nervosa J. P. Tracy 1903-8-9 1941 Humboldt vicinity of Eureka 0 Comment
  RSA46905  Berberis pinnata Doris K. Kildale 1926-3-21 1591 Humboldt McDowell Butte, Kneeland. 915 Comment
Read comments
Jul 25 2012
  HSC97508  Berberis pinnata subsp. pinnata Cara Witte 2007-5-21 71 Humboldt Along National Forest 1. Approximately 1 mile north of White Oak Opening. 1267 Comment
  HSC55066  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11638 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC66270  Blechnum spicant Doris K. Kildale 1928-12-30 6885 Humboldt Phillipsville Comment
  HSC99625  Blechnum spicant H. S. Logsdon 1964-5-10 14 Humboldt 4 mi. N of Orick at Boye's Prairie Comment
  POM256471  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16010 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  BLMAR411  Bolboschoenus maritimus Jennifer Wheeler 2007-8-22 411 Humboldt South Spit Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  HSC31636  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  UC1196126  Boschniakia strobilacea Joseph P. Tracy 1939-4-29 16251 Humboldt Klamath River near Slate Creek. Comment
  HSC75263  Boykinia major J. O. Sawyer, M. A. Ericksen 1980-8-18 4057 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  CAS-BOT-BC420260  Boykinia occidentalis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC154086  Boykinia occidentalis J. P. Tracy 1901-6-30 1210 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC420259  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon Comment
  CAS-BOT-BC420264  Boykinia occidentalis L. B. Kildale 1930-6-1 9746 Humboldt Klamath River at Weitchpec Comment
  UCSB23762  Boykinia occidentalis Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101; 8 miles north of Orick; 60 Comment
  LA202097  Brickellia californica S. K. Harris; C. M. Wilder 1938-9-8 877 Humboldt bars on Van Duzen River, below Blue Slide Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  UC620700  Brickellia californica S. K. Harris, Mrs. C. M. Wilder 1938-9-8 Humboldt below Blue Slide (bars on Van Duzen River); Van Duzen River Comment
  HSC45594  Briza minor Diane L. Reed 1978-5-7 60 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  CAS-BOT-BC145571  Briza minor Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  JEPS517  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-8-2 15067 Humboldt French Camp Ridge 1066 Comment
  SBBG10871  Brodiaea elegans subsp. elegans D. E. Breedlove 1961-7-4 650 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  HSC100549  Brodiaea laxa Carl C. Marshall Jun 1885 94 Humboldt Hills everywhere. Comment
  HSC35968  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1952 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  JEPS512  Brodiaea stellaris Joseph P. Tracy 1928-6-24 8474 Humboldt at head Middle Yager Creek (grassy flat); East's Ranch 762 Comment
  BLMAR191  Brodiaea terrestris subsp. terrestris Donald Hazlett 1994-6-7 191 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS514  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi. w. Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  UC1145158  Bromus carinatus var. carinatus Joseph P. Tracy 1936-8-2 15070 Humboldt French Camp Ridge 1066 Comment
  UC249867  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-18 6282 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC26365  Bromus carinatus var. marginatus T. O. Osborne 1970-4-5 84 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  HSC32480  Bromus commutatus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5720 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1145144  Bromus commutatus Joseph P. Tracy 1942-6-15 17130 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  HSC102647  Bromus diandrus J. P. Smith 2009-5-31 12608 Humboldt Bald Hills Road. 713 Comment
  UC1103359  Bromus diandrus Joseph P. Tracy 1912-7-26 3877 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  HSC9246  Bromus hordeaceus L. H. Myers 1963-5-17 36 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  UC1145188  Bromus laevipes Joseph P. Tracy 1950-6-15 18785 Humboldt 7 mi n of Haris (Mail Ridge); Mail Ridge 1036 Comment
  UC249789  Bromus laevipes Joseph P. Tracy 1923-6-27 6378 Humboldt near the South Fork (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC204535  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt along Eel River from South Fork to Scotia, Stitz Creek Stitz Creek; Northern Coast Ranges, Eel River, Stitz Creek 60 Comment
  HSC54214  Bromus tectorum Griswold, Butler 1979-7-12 7264 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC70780  Bromus tectorum R. York 1980-5-17 546 Humboldt Near Le Perron Peak 1066 Comment
  HSC73757  Bromus tectorum Gail Newton 1980-7-11 1326 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC185518  Bromus vulgaris Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek near Orleans. Comment
  HSC58758  Bromus vulgaris Overton, Butler 1979-7-26 9932 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC9375  Bromus vulgaris D. E. Anderson 1965-9-5 4080 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA127011  Bromus vulgaris H. S. Yates 1936-6-23 5873 Humboldt 3 miles S. E. of Scotia; Rohnerville Comment
  UC1131315  Bromus vulgaris H. S. Yates 1936-6-23 5872 Humboldt 3 mi se of Scotia Comment
  UCD114857  Cakile edentula M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (about 10 miles south of Eureka). Comment
  UCD114939  Cakile maritima M. Barbour 1969-12-15 s.n. Humboldt South of Silver Strand State Beach. Comment
  HSC74075  Calamagrostis foliosa Joyce Walker 1980-8-21 Humboldt Comment
Read comments
May 26 2013
  HSC103094  Calamagrostis koelerioides Sydney Carothers 2014-7-3 18 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  UCD57250  Calamagrostis koelerioides A. H. Murphy 1948-9-3 s.n. Humboldt southeast of Berry's summit, junction Horse Mtn. road and Horse Mtn. Mine roads. Comment
  UCD57741  Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Garberville. 152 Comment
  RSA729024  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35345 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  HSC59492  Callitriche stagnalis M. A. Ericksen 1979-4-22 216 Humboldt 1 mi. W of intersection of Mad River Rd. and Iverson, Arcata bottoms, city of Arcata Comment
  OBI36660  Calochortus coeruleus David J. Keil 1983-7-2 17309 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mtn Summit Rd Comment
  CAS-BOT-BC496523  Calochortus tolmiei Mark Bransom; Daniel Brown; Ron Hidebrant; Nina Meiselman 1986-4-18 6 Humboldt 1 1/2 mi. west of Burnt Ranch on Rt. 299; Burnt Ranch Campground; 1584 Comment
  CAS-BOT-BC273311  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  HSC24779  Calycadenia truncata Barbara Kelly 1971-7-7 66 Humboldt Somes Bar Comment
  SEINET11861072  Calycadenia truncata subsp. scabrella H. P. Chandler 1901-1 1492 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC16571  Calypso bulbosa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC16572  Calypso bulbosa Norman H. Moe 1962-4-26 Humboldt Lanphere's Place Comment
  HSC99380  Calypso bulbosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 29 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC1196480  Calypso bulbosa Joseph P. Tracy 1911-5-7 3181 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  RSA304262  Calypso bulbosa var. occidentalis James R. Shevock 1972-3-27 1481 Humboldt Redwood State Park Comment
  HSC65839  Calyptridium monospermum Gail Newton 1980-6-16 173 Humboldt Near Monks Camp. 1097 Comment
  HSC32094  Calystegia occidentalis subsp. occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5706 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC74028  Calystegia occidentalis subsp. occidentalis Gail Newton 1980-7-11 1315 Humboldt Near Red Mtn. 1341 Comment
  HSC98672  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-10 868 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from intersection with Forest Service Road 4N09. 1302 Comment
  CDA39890  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-1 1578 Humboldt Northern California - North Coast Region; Eureka, Waterfront Drive, just behind and 100 m north of the Humboldt County Library. 0 Comment
  HSC6363  Calystegia soldanella J. W. Johnson 1962-6-4 1413 Humboldt Arcata, W.M. Lanphere Farm, Samoa peninsula Comment
  UC1197873  Calystegia soldanella J. P. Tracy 1900-7-4 882 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach at Samoa, opp. Eureka Comment
  CHSC20349  Calystegia soldanella D. E. Anderson; N. Dennis 1965-6-8 1036 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sections 3, 4, 9, 10, 15, 16, 17, 20, 21, 28, 29, 31, 32. Comment
  HSC31366  Calystegia soldanella Larry E. DeBuhr, G. Wallace 1972-5-23 650 Humboldt Freshwater Lagoon 2.5 mi. S of Orick on Hwy. 101 Comment
  HSC97566  Camassia quamash subsp. breviflora Cara Witte 2008-5-31 150 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1393 Comment
  JEPS8450  Camassia quamash subsp. quamash Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt between Mad River and Redwood Creek (Bald Mountain Ridge), at Snow Camp Redwood Creek; Snow Camp 1432 Comment
  HSC45064  Camissonia ovata R. Sutherland 1978-3-30 2 .30378 Humboldt Mckee Flat 293 Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  JEPS11741  Campanula prenanthoides W. L. Jepson 1932-7-26 16413 Humboldt Bull Creek Comment
  UC29021  Campanula scouleri C. C. Marshall 1886-1 Humboldt Comment
  CAS-BOT-BC37020  Capsella bursa-pastoris Doris K. Kildale 1926-8-29 2591 Humboldt Van Duzen River, near Strongs Station. Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  CAS-BOT-BC37437  Cardamine californica A. A. Heller 1937-6-8 15896 Humboldt 3 miles north of Trinidad. Bishop Pine Lodge. Comment
  HSC79520  Cardamine californica Kenneth Clark 1980-3-1 518 Humboldt Middle and upper terraces of Dead Man's Gulch 61 Comment
  UC183542  Cardamine californica Joseph P. Tracy 1913-6-17 4180 Humboldt near summit Buck Mountain; Northern Coast Ranges, near summit Buck Mountain 1524 Comment
  RSA734791  Cardamine californica var. cardiophylla LeRoy E. Detling 1935-4-20 1642 Humboldt Lansdale Grove of Redwoods. Comment
  RSA0034557  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  RSA10948  Cardamine californica var. sinuata Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  HSC60299  Cardamine nuttallii Phyllis Krieg 1979-5-8 Humboldt 0.25 mi. E of Old Arcata Rd. on Golf Course Rd., Bayside, next to a house 15 Comment
  JEPS79886  Cardamine nuttallii var. covilleana Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC37895  Cardamine oligosperma Duart V. Brown 1942-5-11 2871 Humboldt Three miles east of East Fork of Willow Creek. Comment
  UC275269  Cardamine oligosperma Joseph P. Tracy 1923-4-15 6183 Humboldt at Berry's Northern Coast Ranges, , at Berry's (Redwood Creek) 274 Comment
  CAS-BOT-BC281808  Carduus tenuiflorus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  CAS-BOT-BC18519  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  POM247170  Carex athrostachya Joseph P. Tracy 1934-7-18 13426 Humboldt Grouse Mountain. 1524 Comment
  UC1103082  Carex athrostachya Joseph P. Tracy 1933-8-30 13019 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98945  Carex athrostachya Cara Witte 2008-7-25 933 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  CAS-BOT-BC19217  Carex barbarae Henry M. Pollard 1945-8-26 s.n. Humboldt Near Orleans Hotel, Klamath River Canyon. Comment
  UC562312  Carex barbarae Joseph P. Tracy 1929-6-23 8606 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC19436  Carex bolanderi Peter H. Raven; R. Snow 1958-7-20 13646 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  CHSC85985  Carex bolanderi L. P. Janeway 2003-7-30 7947 Humboldt High North Coast Ranges. Small spring and seep 100 m south-west of Clear Lake, 3.1 km southeast of Titlow Hill. 1494 Comment
  CHSC93263  Carex bolanderi Thomas Nelson; Jane Nelson 1977-7-1 3552 Humboldt The Lassics. Along Blanket Creek. 1493 Comment
  HSC45389  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4408 Humboldt Along margin of Lost Lake 1433 Comment
  HSC98948  Carex bolanderi Cara Witte 2008-7-25 934 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  SEINET3899382  Carex buxbaumii Thomas Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along road 2S08 near Pine Mountain.; 0 1463 Comment
  CHSC40174  Carex concinnoides Lawrence Janeway 1982-6-20 13 Humboldt On ne facing slope near ridgetop ca 1 mi se of Horse Mtn along rd 6N36. 1383 Comment
  UC562259  Carex densa Joseph P. Tracy 1928-6-17 8453 Humboldt Trinity River Valley, at Willow Creek Northern Coast Ranges 152 Comment
  UC50823  Carex deweyana subsp. leptopoda J. P. Tracy 1900-5-28 808 Humboldt immediate vicinity of Eureka Comment
  UC1103104  Carex deweyana subsp. leptopoda Joseph P. Tracy 1920-5-18 5325 Humboldt 5 mi above Dyerville (South Fork); Eel River 152 Comment
  UCR52379  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  HSC43477  Carex fracta Thomas W. Nelson, Jane P. Nelson 1977-7-4 3612 Humboldt Along road N from Alder Springs 1524 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  UC303151  Carex gynodynama Joseph P. Tracy 1925-5-10 6962 Humboldt Hydesiville. Comment
  POM160901  Carex hassei Joseph P. Tracy 1924-7-13 6721 Humboldt Big Lagoon. 6 Comment
  HSC48358  Carex hendersonii D. H. Norris May 1970 12460 Humboldt Fringes of Freshwater Lagoon, S of Orick Comment
  CHSC90268  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8542 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  JEPS79856  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC249732  Carex lenticularis var. limnophila Joseph P. Tracy 1924-7-13 6719 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC69839  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte County line. Onion Lake. 1356 Comment
  HSC103595  Carex luzulina Thomas W. Nelson, Jane Nelson 1987-6-11 8603 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  UC562657  Carex mariposana Joseph P. Tracy 1935-7-23 14141 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC146625  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt Grouse Mountain 1524 Comment
  SEINET12649599 Image available Carex mendocinensis Peter F. Zika 2011-1 25496 Humboldt 1310 Comment
  HSC45431  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4394 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  HSC98991  Carex multicaulis Cara Witte 2008-6-13 718 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  HSC45968  Carex nudata J. P. Smith 1973-5-26 6846 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1142  Carex nudata Harley P. Chandler May 1901 1235 Humboldt redwood belt North Coast Ranges 91 Comment
  CAS-BOT-BC119543  Carex nudata L. P. Janeway 1983-7-23 436 Humboldt Willow Creek quad. Along the W edge of Trinity River near the Willow Creek Airstrip. 137 Comment
  SEINET3905214  Carex nudata Thomas Nelson 1977-5-30 3407 Humboldt In Mad River at Anderson's Ford north of Dinsmore on the McKeown Ranch.; 0 610 Comment
  CAS-BOT-BC119386  Carex obnupta Doris Kildale Gillespie 1931-6-7 10650 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  HSC86478  Carex obnupta Rudolf W. Becking 1988-4-9 Humboldt South Spit, opposite Fields Landing Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  NY11255  Carex olympica J. P. Tracy 1911-7-7 3390 Humboldt At the meadows on mountain side, three miles northwest of junction of Willow creek with Trinity River, and near Beebe's Ranch 914.4 Comment
  CHSC107145  Carex pachycarpa R. E. Brainerd 2009-7-23 1570 Humboldt Coast Range, South Fork Mountain; headwaters of Kerlin Creek; 19.6 air miles west-northwest of Hayfork; Forest Service Road 3N32. UTM zone 10 453507E 4494866N. 1716 Comment
  HSC82544  Carex pachystachya Thomas W. Nelson 1979-7-11 5005 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC119162  Carex pansa Robert F. Thorne; P. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  HSC37967  Carex pansa P. Sorensen 1976-6-16 Humboldt Humboldt Bay, Woodley Island Comment
  RSA246858  Carex pansa Robert F. Thorne, Percy C. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC117538  Carex serratodens Joseph Prince Tracy 1926-6-27 7692 Humboldt Horse Mountain. Comment
  UC562634  Carex subbracteata Joseph P. Tracy 1936-6-9 14904 Humboldt Upper Mattole 121 Comment
  CAS-BOT-BC116680  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  HSC103143  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1154 Humboldt Patterson Meadows 1555 Comment
  UC249554  Carex unilateralis Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley 152 Comment
  UC562650  Carex unilateralis Joseph P. Tracy 1930-6-15 8756 Humboldt Dobbyn Creek 152 Comment
  HSC2871  Carpobrotus chilensis D. B. Mitchell 1965-5-21 71 Humboldt 1/2 mi. N of U.S. Coast Guard Station on Samoa Rd. Comment
  SEINET12027436  Castanopsis chrysophylla J. P. Tracy 1950-1 19239 Humboldt Grouse Mtn 1524 Comment
  HSC98630  Castilleja affinis subsp. affinis Cara Witte 2007-8-1 614 Humboldt Friday Ridge Road (Forest Service Road 6N08); ~ 1/2 mile north of intersection with Forest Service Road 5N39. 1505 Comment
  UC1196862  Castilleja affinis subsp. affinis Joseph P. Tracy 1908-6 2812 Humboldt opposite Buck Mountain; North Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC30733  Castilleja affinis subsp. litoralis Glenn McGourty 1974-4-27 24 Humboldt Upper banks of the Mattole River Comment
  UC147876  Castilleja affinis subsp. litoralis J. P. Tracy 1900-6-25 864 Humboldt immediate vicinity Eureka 0 Comment
  HSC90430  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-6-22 97 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  RSA18017  Castilleja ambigua subsp. humboldtiensis Carl B. Wolf 1927-8-22 776 Humboldt Big Lagoon. Comment
  SBBG7041  Castilleja exserta subsp. exserta H. and M. Dearing 1939-5-25 3433 Humboldt sand dunes near Samoa Comment
  HSC46970  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just E of the drag strip. Comment
  JEPS76826  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4805 Humboldt beach of Manila Manila; Samoa Peninsula, beach at Manila Comment
  RSA516622  Castilleja litoralis R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-11 4758 Humboldt 1.2 miles south of Trinidad. Comment
  HSC92193  Castilleja mendocinensis E. Mackey 1986-7-6 Humboldt Patrick's Point State Park, on trail to Wedding Rock. Comment
  HSC55740  Castilleja miniata G. L. Clifton, Griswold 1979-7-26 10244 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC38886  Castilleja miniata J. O. Sawyer 1970-6-25 2300 Humboldt 1646 Comment
  HSC41299  Castilleja pruinosa Brad Klipfel 1974-7-27 498 Humboldt Horse Mtn. Comment
  JEPS16901  Castilleja pruinosa Rimo Bacigalupi with G. Thomas Robbins 1954-6-28 4652 Humboldt 7.3 mi n Willow Creek (above Trinity River, above road between Willow Creek and Hoopa Valley); Six Rivers National Forest 274 Comment
  HSC55616  Ceanothus cordulatus Overton, Butler 1979-7-23 9511 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC1071074  Ceanothus cuneatus var. cuneatus A. E. Wieslander 1931-5-19 201 Humboldt near Orleans. Hoopa quad., Klamath Nat. For. Comment
  CAS-BOT-BC49658  Ceanothus foliosus var. foliosus Fay A. Mac Fadden 1935-6-22 13698 Humboldt Near Squaw Creek, Cummings Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  CAS-BOT-BC50043  Ceanothus incanus M. S. Jussel 1931-5-2 114 Humboldt Garberville Comment
  CAS-BOT-BC50049  Ceanothus incanus Doris K. Kildale 1926-8-8 2470 Humboldt Dyerville Bridge near Dyerville - South Fork of Eel River 45 Comment
  POM282970  Ceanothus incanus Lyman Benson 1929-7-11 1785 Humboldt S of Garberville Comment
  HSC59445  Ceanothus integerrimus Kenneth Clark 1979-5-15 305 Humboldt Tish Tang State Campground, 11 mi N of Willow Creek on Hwy. 96 Comment
  HSC18380  Ceanothus oliganthus var. sorediatus P. J. Zinke 1950-10-4 166 Humboldt 2 mi E of Honeydew 1829 Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  UCD112339  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt Ridge west of Brushy Mtn. 1 1/2 miles from the ocean. 914 Comment
  CAS-BOT-BC51209  Ceanothus parryi Mrs. E. C. Suttiffe 1933-6-3 s.n. Humboldt Redwood Highway, west Humboldt County Comment
  CAS-BOT-BC51219  Ceanothus parryi C. Hart Merriam 1920-8-30 s.n. Humboldt Garberville Comment
  CAS-BOT-BC51221  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC43246  Ceanothus parryi R. Sutherland 1975-7-5 8 .5775 Humboldt 244 Comment
  RSA89807  Ceanothus parryi P. A. Munz 1954-7-26 19884 Humboldt Humboldt County:S of Richardson Grove at Humboldt Mendocino County line Comment
  SDSU10303  Ceanothus parryi D. F. Howe 1962-5-21 3294 Humboldt 2.3 miles N of Garberville on #101. 152 Comment
  UC203997  Ceanothus parryi Joseph P. Tracy 1918-7-6 5045 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC51213  Ceanothus parryi Doris K. Kildale 1926-12-19 2871 a Humboldt South Fork - on South Fork of Eel River 51 Comment
  CAS-BOT-BC52042  Ceanothus prostratus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mountain 792 Comment
  HSC23276  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1293 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43226  Ceanothus pumilus R. Sutherland 1976-4-17 6 .17476 Humboldt 549 Comment
  HSC43228  Ceanothus pumilus R. Sutherland 1976-4-25 3 .25476 Humboldt 622 Comment
  SEINET201060  Ceanothus pumilus J. P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  UC170018  Ceanothus pumilus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5647 Humboldt Hoopa Mountain North Coast Ranges, Hoopa Mountain Comment
  HSC12358  Ceanothus thyrsiflorus C. Kline 1970-11-28 82 Humboldt Hwy 101, 1 mi S of Arcata Comment
  HSC60305  Ceanothus thyrsiflorus J. P. Smith 1970-6-7 3810 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  SBBG4534  Ceanothus thyrsiflorus var. thyrsiflorus H. and M. Dearing 1933-5-17 977 Humboldt N of Big Lagoon Comment
  SD42558  Ceanothus velutinus Carl B. Wolf 1937-8-13 9232 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  HSC56191  Ceanothus velutinus var. velutinus Gilbert Muth 1979-8-1 12131 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC277175  Centaurea X moncktonii Henry M. Pollard 1945-8-20 s.n. Humboldt Bluff Creek Comment
  UC1222952  Centaurea cyanus Joseph P. Tracy 1942-7-18 17281 Humboldt near Garberville Comment
  JEPS46937  Centaurium muehlenbergii W. L. Jepson 1932-7-27 16424 Humboldt Bull Creek Comment
  JEPS46935  Centaurium muehlenbergii W. L. Jepson 1902-7-13 2022 Humboldt Willow Creek to Hupa Comment
  POM92415  Centaurium muehlenbergii L. R. Abrams 1922-6-25 8228 Humboldt 6 miles N of Garberville, along Eel River. Comment
  UC1198614  Centunculus minimus Joseph P. Tracy 1934-6-23 13254 1/2 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC154023  Centunculus minimus J. P. Tracy 1903-8-9 1943 Humboldt immediate vicinity of Eureka 0 Comment
  HSC70729  Cephalanthera austiniae Gail Newton 1980-7-14 1525 Humboldt Near Deadman Ridge 1097 Comment
  HSC99675  Cephalanthus occidentalis J. Wendell Howe 1934-7-9 1293 Humboldt Near Weaverville Comment
  CAS-BOT-BC384898  Cerastium arvense Doris K. Kildale 1927-5-15 3245 Humboldt Petrolia, Mattole River Comment
  HSC97652  Cerastium arvense Juha Pykala, D. H. Norris 1987-5-20 749 Humboldt 7.5 mi. S of Ferndale along Wildcat Rd. near Green Pond Ranch 450 Comment
  UC1223235  Cerastium arvense Joseph P. Tracy 1950-6-15 18820 Humboldt 7 mi. n. Harris (Huestis Rock, on n.e. side of Ridge); Mail Ridge, Huestis Rock Comment
  HSC59557  Cerastium glomeratum Rick Lundquist 1979-4-25 40 Humboldt .3 mi. S of Samoa on Samoa Blvd. 0 Comment
  HSC74573  Cercis occidentalis M. A. Baker 1980-5-17 1245 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC135534  Cercocarpus betuloides var. betuloides Doris K. Kildale 1928-12-30 6770 Humboldt Flat on South fork of Eel River, 1 1/2 miles west of Garberville Comment
  UC492185  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-4-14 8538 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  SEINET200737  Cercocarpus ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit about 2 miles southwest of top of the mountain 1768 Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  CDA30234  Chamaesyce serpyllifolia M. K. Beyers, I. Shepardson 2009-9-13 236 Humboldt In dry portion of the eastern side of the Eel River, east of State Route 254 (Avenue of the Giants) and Highway 101. Just west of the unincorporated community of Shively. 0 Comment
  JEPS52356  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above mouth of river; Nothern Coast Ranges, South Fork of Eel River Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  UCSB4328  Chamerion angustifolium subsp. circumvagum Robbins, G. 1936-8-1 Humboldt Roadside between Carlotta and Strongs Station Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  HSC73665  Cheilanthes gracillima M. A. Baker 1980-7-15 2965 Humboldt Near Whiting Ridge. 1341 Comment
  HSC76323  Cheilanthes gracillima Denis Kearns 1981-7-21 304 Humboldt Near Whiteys Peak 1585 Comment
  HSC99676  Cheilanthes gracillima Walter Overton, Marvin Butler 1979-7-25 9894 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  RSA424563B  Chenopodium botrys T. S. Elias, Barbara A. Elias 1987-8-26 10624 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  BLMAR529  Chimaphila umbellata Jennifer Wheeler 2009-6-23 529 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC451500  Chimaphila umbellata Doris K. Kildale 1928-4-29 5962 Humboldt Bald Mountain Comment
  HSC48861  Chimaphila umbellata Brad Klipfel 1973-7-31 243 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC72630  Chimaphila umbellata J. P. Smith 1977-7-3 9253 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA467019  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  CAS-BOT-BC36481  Chrysolepis chrysophylla Doris K. Kildale 1926-9-5 2628 Humboldt Top of ridge at Goat Camp, Lassecks Peaks 1661 Comment
  UC154073  Chrysosplenium glechomifolium J. P. Tracy 1905-3-5 2147 Humboldt immediate vicinity Eureka 0 Comment
  HSC5369  Cichorium intybus H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC76194  Cinna latifolia Overton, Butler 1979-8-2 12506 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA183599  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad river, ca. 3 miles south of Blue Lake Comment
  SEINET201029 Image available Cinna latifolia J. P. Tracy 1919-9-18 5255 Humboldt Trinity Summit 1524 Comment
  JEPS11944  Cirsium arvense Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-11 4757 Humboldt 0.5 mi n Mad River bridge (n of Arcata, in field along U.S. Highway 101); U.S. Highway 101 Comment
  JEPS79874  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  HSC40131  Cirsium arvense Thomas W. Nelson, James Nelson 1976-7-28 3082 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  SEINET5507070 Image available Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt Redwood Hwy, 1.5 mi N of Orick Comment
  CAS-BOT-BC284438  Cirsium brevistylum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  CDA15023  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges; Hwy 299 between mileposts 21.50 and 18, near Willow Creek. 0 Comment
  HSC81713  Cirsium brevistylum Thomas W. Nelson, Jane P. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  CDA1175  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  BLMAR404  Cirsium douglasii var. breweri Clara Sander 2005-7-1 404 Humboldt Horse Mtn, Titlow hill road: growing along the roak banks 1066 Comment
  CAS-BOT-BC279974  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  RSA0070609  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek, on the Willow Creek Highway. 610 Comment
  JEPS59296  Cirsium occidentale var. candidissimum W. L. Jepson 1932-8-8 16486 Humboldt Bull Creek Grasshopper Peak, Bull Creek 1005 Comment
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Jan 17 2008
  OBI56358  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges. Nr berry Summit on Titlow Hill Rd, 3.9 mi S of hwy 299 Comment
  UCD144226  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  UC101803  Clarkia amoena subsp. amoena R. A. Plaskett Humboldt Mattole River Comment
  CAS-BOT-BC160947  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 A Humboldt Above terrace at Shelter Cove Comment
  CAS-BOT-BC160951  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-24 5291 Humboldt Horse Mountain cut-off, near junction of Willow Creek road 853 Comment
  POM228379  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 671 Humboldt South side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  CAS-BOT-BC164175  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  UC184710  Clarkia davyi Joseph P. Tracy 1912-7-21 3771 Humboldt Alton Northern Coast Region 30 Comment
  HSC38102  Clarkia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM214926  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1932-6-26 10264 Humboldt North Coast Ranges: Valley of South Yager Creek 762 Comment
  RSA249400  Clarkia purpurea subsp. purpurea D. E. Anderson, Thomas Nelson, S. Dowty 1973-6-17 5701 Humboldt McKeown Ranch north of Dinsmore Comment
  CAS-BOT-BC172510  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek 762 Comment
  UC1196977  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1938-7-4 15984 Humboldt Valley of South Yager Creek 762 Comment
  RSA298976  Clarkia rhomboidea Lincoln Constance 1934-6-15 880 Humboldt Bull Creek Region, South Fork Eel River. Summit of Grasshopper Peak 976 Comment
  JEPS127652  Claytonia Jurriaan M. de Vos 2014-7-1 300 Humboldt Along Bald Hills Road, near Dolason trail head parking. Comment
  CAS-BOT-BC439097  Claytonia cordifolia Joseph P. Tracy 1932-7-15 10583 Humboldt Trinity Summit. Ridges East of Corral Prairie 1828 Comment
  HSC75469  Claytonia cordifolia J. O. Sawyer 1980-7-18 3616 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC67213  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5442 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  HSC78959  Claytonia perfoliata subsp. perfoliata L. P. Janeway, K. Berg 1984-4-11 726 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC48843  Claytonia sibirica Brad Klipfel 1973-7-15 199 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET190447  Claytonia sibirica J. P. Tracy 1932-7-14 10536 Humboldt Trinity Summit Corral Prairie 1585 Comment
  CAS-BOT-BC443903  Claytonia sibirica A. A. Heller 1937-6-10 16274 Humboldt At Bishop Pine Lodge, 3 miles north of Trinidad on U. S. Highway #101. Comment
  RSA168883  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Everett Beck s house, Hydesville Comment
  UC1223244  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Hydesville; back of Everett Beck's house Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  UC1196209  Clematis ligusticifolia Joseph P. Tracy 1922-10-1 6118 Humboldt Van Duzen R. near Carlotta; Northern Coast Ranges, Van Duzen R. 30 Comment
  HSC92099  Clintonia andrewsiana Brad Klipfel 1973-4-28 10 Humboldt Along Canyon Creek, SW of Korbel Comment
  RSA39092  Clintonia andrewsiana Philip A. Munz 1948-8-15 12359 Humboldt Van Duzen Redwood State Park. Comment
  JEPS6293  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC66827  Collinsia greenei M. A. Baker 1980-7-11 2808 Humboldt Near Red Mtn. 1433 Comment
  UC177195  Collinsia greenei Joseph P. Tracy 1912-7-31 3937 Humboldt near Buck Mtn Summit; Northern Coast Ranges, Buck Mtn 1676 Comment
  POM203235  Collinsia heterophylla M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  UC1222820  Collinsia linearis Joseph P. Tracy 1950-7-2 18969 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit, Happy Camp Mountain); Trinity Summit, Happy Camp Mountain 1371 Comment
  HSC39060  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-5-31 2640 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  RSA135456  Collomia grandiflora Volney Rattan 1878-1 s.n. Humboldt Humboldt. Comment
  UC908726  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC23477  Collomia heterophylla D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5061 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC32261  Collomia heterophylla J. O. Sawyer 1970-6-24 2250 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  UC1197849  Collomia heterophylla Joseph P. Tracy 1917-9-2 4846 Humboldt along streamlet near top Northern Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC157349  Comarum palustre Carl B. Wolf 1927-8-22 775 Humboldt Big Lagoon Comment
  UCSC000566  Convolvulus soldanella H. S. Yates 1936-6-16 5657 Humboldt 0.5 mile S.W. of Samoa Samoa - Eureka 3 Comment
  CAS-BOT-BC286024  Conyza canadensis Doris K. Kildale 1925-9-6 1283 Humboldt Somes Bar 243 Comment
  HSC18094  Coptis laciniata J. P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon along Trinity Hwy. 762 Comment
  HSC49219  Coptis laciniata J. O. Sawyer 1977-4-23 2846 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC100900  Coptis occidentalis Carl C. Marshall Apr 1887 374 Humboldt Supply Creek. 610 Comment
  HSC98642  Corallorhiza maculata Cara Witte 2008-7-11 883 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  RSA249377  Corallorhiza maculata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5562 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  UC1196450  Corallorhiza maculata Joseph P. Tracy 1930-7-18 9063 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  BLMAR311  Cordylanthus maritimus subsp. palustris Jennifer Anthony-Wheeler 2002-7-1 311 Humboldt South Spit 6 Comment
  RSA244999  Cordylanthus maritimus subsp. palustris William J. Ferlatte, B. D. Rogers 1966-8-15 3125 Humboldt 6 miles east of Korbel; Cutoff Red wood Comment
  SEINET8733340 Image available Cordylanthus viscidus Joseph P. Tracy 1947-1 17884 Humboldt one mile west of Mud Springs, in serpentine formation 1158 Comment
  UC204865  Corethrogyne filaginifolia J. P. Tracy 1918-7-5 5025 Humboldt Mc Kee's Field; White Thorn Valley 304 Comment
  UC494209  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale Comment
  UC725642  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt Little River Comment
Read comments
Sep 29 2006
  SD38604  Corethrogyne filaginifolia var. filaginifolia Edith A. Purer 1932-7-30 4675 Humboldt Sand dunes south of Oric. Comment
  UC205461  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC209863  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC212013  Cornus nuttallii Doris K. Kildale 1927-5-1 3118 Humboldt Blocksburg Comment
  HSC41339  Cornus nuttallii Brad Klipfel 1974-9-7 561 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  JEPS50154  Cornus nuttallii W. L. Jepson 1936-8-11 17868 Humboldt <Philipsville> S. Fork Eel R., <Philipsville> Comment
  UC1196910  Cornus nuttallii Joseph P. Tracy 1922-4-30 6031 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC634835  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt E. Fork Eel R. near Garberville; E. Fork Eel R. Comment
  HSC58341  Cornus sericea subsp. sericea Overton, Butler 1979-8-2 12665 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC668295  Cornus sericea subsp. sericea Joseph P. Tracy 1935-7-25 14230 1/2 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC1052446  Cornus sessilis H. E. and S. T. Parks 1941-7-5 11492 Humboldt Hors Linto Creek Comment
  HSC57139  Corylus cornuta subsp. californica Overton, Butler 1979-7-25 9919 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  OBI36371  Corylus cornuta subsp. californica David J. Keil 1983-7-1 17269 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  HSC37853  Cotula coronopifolia Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  CAS-BOT-BC291341  Cotula coronopifolia C. L. Hitchcock; J. S. Martin 1939-7-14 5434 Humboldt Above pier at Shelter Cove Comment
  HSC104401  Crataegus gaylussacia Jim McIntosh 2012-5-22 Humboldt Klamath Mountains; southern Siskiyou Mtns., adjacent to north side of State Route 169 at Milepost 22.09; 200 ft. above Klamath River. 96 Comment
  RSA125671  Crataegus suksdorfii E. K. Balls 1957-5-25 22602 Humboldt Hwy 36, Van Duzen River, W of Trinity Humboldt County Line. 732 Comment
  CAS-BOT-BC290340  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC290585  Crepis capillaris Doris K. Kildale 1927-6-25 3540 Humboldt Shelter Cove Comment
  UC1787277  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastal strand.: North spit of Samoa Peninsula, 0.5 mi N of CA-225 bridge over Humboldt Bay. 6 Comment
  CAS-BOT-BC291486  Crepis capillaris H. E. Parks 1941-8-1 24189 Humboldt Vicinity of Trinidad Comment
  POM264599  Crepis capillaris C. R. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  SDSU3878  Crepis capillaris D. F. Howe 1961-7-31 3098 Humboldt 37.7 miles south of Eureka on #101. Comment
  HSC31207  Crepis pleurocarpa D. E. Anderson 1972-6-20 5742 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1223025  Crepis pleurocarpa Joseph P. Tracy 1947-7-9 17846 Humboldt Horse Mountain; top 1432 Comment
  RSA113707  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek, near the mouth in woods along an old road 152 Comment
  UCD130981  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley. 106 Comment
  UC525606  Cryptantha affinis Joseph P. Tracy 1933-8-30 13041 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC667006  Cryptantha affinis Joseph P. Tracy 1939-7-9 16335 Humboldt Snow Camp 1402 Comment
  UCSB14885  Cryptantha leiocarpa 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC502914  Cupressus lawsoniana Joseph P. Tracy 1927-6-12 8141 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC35079  Cuscuta indecora Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  HSC49805  Cuscuta pacifica var. pacifica R. York 1979-5-18 301 Humboldt Around Humboldt Bay Comment
  HSC99285  Cynoglossum grande Jimerson, J. Pageau 1979-5-24 482 Humboldt Near Orleans 143 Comment
  SEINET200580  Cynoglossum occidentale J. P. Tracy 1930-7-10 8871 Humboldt Brannan Mtn 1219 Comment
  UC1145093  Cynosurus echinatus Joseph P. Tracy 1944-7-3 17486 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC303019  Cyperus bipartitus Joseph P. Tracy 1926-8-12 7766 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  SEINET3909435  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 4990 Humboldt The Mad River above the Fish Hatchery.; 0 Comment
  HSC54710  Cypripedium montanum Overton, Butler 1979-7-26 10063 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC70541  Cystopteris fragilis Doris K. Kildale 1926-5-2 1880 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  HSC74131  Cystopteris fragilis R. York 1980-5-23 613 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC70552  Cystopteris fragilis Arnold Tiehm 2000-8-30 13381 Humboldt Santa Rosa Range, Buckskin Mountain Comment
  CDA36734  Cytisus scoparius Richard R. Halse 2010-3-25 7856 Humboldt Along U.S. Hwy 101 ca. 9.7 miles south of Orick. Comment
  HSC14667  Cytisus scoparius F. B. Plett 1963-4-24 32 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  UCD105685  Cytisus scoparius R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  HSC9539  Dactylis glomerata E. W. Styskel 1963-5-16 25 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1541567  Dactylis glomerata Harold E. Parks May 1933 4307 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC32479  Danthonia californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5721 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC72622  Danthonia californica J. P. Smith 1977-7-3 9231 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC526856  Danthonia californica Joseph P. Tracy 1931-5-31 9549 Humboldt Kneeland Prairie Northern Coast Ranges 792 Comment
  UC70789  Danthonia californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5678 Humboldt Hoopa Mt. Comment
  UCD60486  Danthonia californica R. Tofsrud 1947-6-29 s.n. Humboldt About 3 mi. N of Harris on road to Alder Point. Comment
  UC1131389  Danthonia californica var. americana H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  UC14524  Darmera peltata W. C. Blasdale 1896-6-7 Humboldt near Deer Creek (Mad River); Mad River Comment
  HSC46019  Daucus carota Catherine Chin 1978-8-5 94 Humboldt 7th & A St., Arcata Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  SEINET3823243 Image available Daucus pusillus J. P. Tracy 1909-7-18 3021 Humboldt Sand Hills of Ocean Beach at Samoa, opp. Eureka Comment
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  HSC49808  Delairea odorata J. M. DiTomaso 1979-11-7 1551 Humboldt In front yard of house across from Day Care Center on Humboldt State University Campus Comment
  CAS-BOT-BC9033  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-4-29 5963 Humboldt Horse Mountain 853 Comment
  HSC97582  Delphinium decorum subsp. tracyi Cara Witte 2007-5-23 105 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  HSC96258  Delphinium decorum subsp. tracyi Kaylea Eickhoff, Cara M. Witte 2005-6-15 12 Humboldt 14.1 mi. S of Hwy. 299 on NF1, 0.25 mi. NE of Grouse Mtn. 1400 Comment
  UC668271  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  SD46536  Delphinium hesperium E. K. Balls, L. W. Lenz 1956-6-12 21665 Humboldt 9.1 miles ne from Blue Lake along U.S. Hwy. 299, Arcata to Willow Creek. 487 Comment
  HSC25012  Delphinium nudicaule Eugene Andreuccetti 1964-5-2 38 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  UC1196329  Delphinium nudicaule Joseph P. Tracy 1933-7-11 12684 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  UC249530  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1075803  Delphinium trolliifolium E. K. Balls and L. W. Lenz 1955-5-15 20736 Humboldt hills 9.9 mi sw Fernbridge (along Old Coast rd to Capetown) 502 Comment
  UC162815  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC37428  Delphinium trolliifolium D. W. Snell 1964-4-18 49 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  JEPS2559 Image available Dentaria californica Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River; Van Duzen River at Blue Slide, E of Hydesville, Humboldt Co. 91 Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  HSC27104  Deschampsia cespitosa subsp. holciformis L. M. Malloy 1965-5-19 38 Humboldt Arcata, southside of Samoa Rd., opposite of KATA radio station, adjacent to the railroad tracks, bank of a drainage ditch. Comment
  UC1103220  Deschampsia danthonioides Joseph P. Tracy 1912-7-31 3896 Humboldt n.w. slope Buck Mt.; Northern Coast Ranges, Burr Valley, Buck Mt. 1066 Comment
  CAS-BOT-BC201773  Deschampsia elongata Doris K. Kildale 1927-7-22 3825 Humboldt Lassecks Peaks near Corral Camp 1661 Comment
  HSC97565  Deschampsia elongata Cara Witte 2007-6-7 223 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  RSA12539  Deschampsia elongata C. B. Wolf 1934-7-2 5899 Humboldt at Snow Camp (Mts. east of Korbel) 1372 Comment
  UC526670  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UC70915  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5516 B Humboldt near Camp Grant Camp Grant Comment
  UCD63577  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3621 Humboldt 4 miles north of Bridgeville. Comment
  CHSC95018  Dicentra formosa K. Lang; J. Lang 2005-3-14 28 Humboldt Trinidad, N. California coast 51 Comment
  HSC22512  Dicentra formosa G. N. Bos 1965-5-2 236 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  HSC26393  Dicentra formosa Brad Klipfel 1973-4-24 3 Humboldt Blue Lake on Hwy. 299 Comment
  JEPS9740  Dicentra formosa Lincoln Constance 1934-6-3 799 Humboldt N. Dyerville Flat; South Fork Eel River, Bull Creek Region Comment
  UC1362290  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  HSC48823  Dicentra uniflora Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 35 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  HSC38087  Dichelostemma ida-maia Thomas W. Nelson, Jane P. Nelson 1976-5-30 2608 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC74700  Dichelostemma ida-maia Gail Newton 1981-8-5 2371 Humboldt Near Bug Creek, E Fork 914 Comment
  CAS-BOT-BC501021  Dichelostemma ida-maia Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  JEPS5679  Dichelostemma ida-maia Milo S. Baker 1923-7-20 47 b Humboldt near head of Yager Creek Comment
  UC198616  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  SEINET13768897 Image available Diplacus aurantiacus C. L. Hitchcock, J. S. Martin 1939-1 5439 Humboldt Shelter Cove Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  RSA520557  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Near Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11 km) south of Klamath Comment
  UC562464  Dodecatheon hendersonii Joseph P. Tracy 1927-4-2 7879 Humboldt facing South Fork of Eel River Northern Coast Ranges, fcg South Fork Eel River (Phillipsville) 121 Comment
  UC1046562  Dodecatheon jeffreyi R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3418 Humboldt ridge between Mad River and Redwood Creek (edge of meadow at Snow Camp, Bald Mountain); ridge btw Mad River and Redwood Creek, Bald Mt, Snow Camp 1432 Comment
  HSC3848  Downingia elegans J. P. Tracy 1927-7-17 8270 Humboldt Three Cabins: lower W foothills of Chaparral Mtn. 457 Comment
  RSA23339  Downingia elegans var. corymbosa Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda. 122 Comment
  HSC40707  Drosera rotundifolia J. P. Smith, T. Nelson, Robert M. Specht 1977-4-10 9015 Humboldt SE of Hwy. 101 at the SW end of the bridge over Big Lagoon. Comment
  HSC35347  Drymocallis glabrata A. M. Montalvo, J. D. Ackerman 1975-6-22 480 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  UC1198693  Drymocallis glandulosa var. glandulosa H. E. Parks and Joseph P. Tracy 1931-5-17 10085 Humboldt Trinity River at Willow Creek; Northern Coast Ranges, Trinity River at Willow Creek 152 Comment
  CAS-BOT-BC158415  Drymocallis rhomboidea Doris Kildale Gillespie 1931-6-7 10609 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC197923  Dryopteris expansa Joseph P. Tracy 1914-6-7 4491 Humboldt N Fork Eel River Alton; Northern Coast Region 30 Comment
  HSC91611  Dudleya farinosa E. Mackey 1986-6-16 Humboldt Patricks Point State Park Comment
  UC183727  Dulichium arundinaceum Joseph P. Tracy 1914-9-6 4603 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  CAS-BOT-BC113802  Dulichium arundinaceum Joseph Prince Tracy 1938-9-25 16173 Humboldt Dense masses in shallow water, Bald Mountain, at Lake Prairie. 1066 Comment
  HSC65139  Dysphania botrys J. P. Smith 1971-10-9 5013 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC34075  Echinochloa crus-galli J. P. Tracy 1900-11-1 973 Humboldt immediate vicinity Eureka 0 Comment
  UC1100261  Echinochloa crus-galli var. crus-galli Malcolm A. Nobs and S. Galen Smith 1949-8-9 1240 Humboldt Town of Blue Lake; s side Comment
  UCD61098  Echinochloa muricata Martin Pontoni 1925-11-14 Humboldt Eureka. Comment
  CAS-BOT-BC113642  Eleocharis acicularis Doris K. Kildale 1931-5-16 s.n. Humboldt Snow Camp Comment
  RSA275279  Eleocharis acicularis var. acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Pond above Alder Springs 1585 Comment
  HSC7309  Eleocharis macrostachya Paul Shields 1955-10-7 Humboldt Essex Pond near Fieldbrook Comment
  UC666877  Eleocharis macrostachya Joseph P. Tracy 1934-7-30 13506 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  SEINET3910832  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Eureka Quad. Along east side of State Route 101 just north of the Eureka Airport.; 0 Comment
  CAS-BOT-BC113337  Eleocharis montevidensis Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  UCD49814  Eleocharis pachycarpa S. Galen Smith; Malcolm A. Nobs 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon, Humboldt County. Comment
  POM313063  Eleocharis pachycarpa Malcolm A. Nobs, S. Galen Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon Comment
  CAS-BOT-BC112660  Eleocharis parvula Robert F. Thorne; P. Everett 1965-8-9 35342 Humboldt along Hwy 101, ca 3 mi N of Eureka along roadside. 1 Comment
  UC1103662  Eleocharis parvula Joseph P. Tracy 1921-8-7 5868 Humboldt Stone Lagoon 3 Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  BLMAR37  Elymus Brad Barr 37 Humboldt King range Comment
  UC1541606  Elymus X hansenii Harold E. Parks and Joseph P. Tracy 1934-6-27 11049 Humboldt Horse Mountain 1280 Comment
  CAS-BOT-BC227347  Elymus elymoides Joseph P. Tracy 1930-7-16 8955 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  HSC71647  Elymus glaucus J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9927 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  UC53395  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5565 Humboldt Alton Comment
  RSA167303  Elymus glaucus Joseph P. Tracy 1951-7-5 19602 Humboldt along Long Valley Creek, southeast end of Long Valley. Comment
  CAS-BOT-BC203475  Elymus glaucus subsp. glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1066 Comment
  UC1103475  Elymus glaucus subsp. virescens Joseph P. Tracy 1938-6-17 15959 Humboldt s point of Cape (near ocean shore); Cape Mendocino 3 Comment
  HSC9729  Elymus mollis subsp. mollis S. J. Moore 1965-5-3 2 Humboldt Gold Beach Comment
  HSC98925  Elymus multisetus Cara Witte 2008-7-30 969 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  UC38212  Elymus multisetus Joseph Burtt Davy 1899-6-19 5661 Humboldt Hoopa Mt. Comment
  HSC102192  Elymus repens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1106 Humboldt Andy's Camp 1564 Comment
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Jul 9 2015
  CHSC32975  Elymus trachycaulus subsp. trachycaulus Thomas Nelson; Jane Nelson 1976-7-26 3023 Humboldt The Lassics. Trinity-Humboldt Co. line. Road cut along 1S07 west of Black Lassic. 1615 Comment
Read comments
Dec 11 2010
  UC583055  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 mi w Willow Creek Comment
  JEPS43830  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1936-8-8 17862 Humboldt Richardson Grove South Fork Eel River Comment
  HSC98622  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-7-25 584 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1/4 mile east of intersection with 5N10. 1237 Comment
  UCD20169  Epilobium ciliatum subsp. glandulosum J. M. Tucker 1948-9-3 1858 Humboldt Clear Lake, near junction of Friday Ridge Road and Horse Mountain-Grouce Mountain Road. Comment
  UC146139  Epilobium ciliatum subsp. watsonii Joseph P. Tracy 1907-7-20 2591 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach, along ditch) Comment
  UC583056  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt roadside ditch Clam Beach Comment
  JEPS31498  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  HSC55081  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11736 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC70779  Epilobium minutum R. York 1980-5-17 548 Humboldt Near Le Perron Peak 1066 Comment
  UC314614  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 Comment
  UC594236  Epilobium minutum S. K. Harris and J. P. Tracy 1936-6-10 3263 Humboldt hills w South Fork of the Trinity River (near river mouth) 640 Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  UC902051  Epipactis gigantea Joseph P. Tracy 1949-7-7 18335 Humboldt Blue Slide Van Duzen River 91 Comment
  UC503074  Equisetum hyemale subsp. affine Joseph P. Tracy 1927-8-7 8316 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC549763  Equisetum hyemale subsp. affine Joseph P. Tracy 1933-6-6 12506 Humboldt Trinidad; Northern Coast Region 60 Comment
  UC62558  Equisetum hyemale subsp. affine P. E. Goddard July 1901 88 Humboldt Hupa Comment
  HSC99645  Equisetum telmateia subsp. braunii N. D. Dennis 1965-4-8 14 Humboldt Old Arcata Rd., 1 mi. S of Arcata Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 Comment
  CAS-BOT-BC213622  Eragrostis mexicana subsp. virescens Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  RSA44358  Erechtites minimus H. M. Pollard 1948-7-21 s.n. Humboldt Near Ferrian Ranch, Orleans. Comment
  UC502962  Eremocarpus setiger Joseph P. Tracy 1927-10-23 8390 Humboldt McClellan Mountain Northern Coast Ranges 762 Comment
  HSC32286  Eremogone congesta var. crassula D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5632 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC98024  Erigeron aliceae Cara Witte 2007-7-11 509 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  CAS-BOT-BC293613  Erigeron biolettii Doris K. Kildale 1929-8-4 8777 Humboldt Mattole River at Union Mattole Comment
  CAS-BOT-BC296109  Erigeron foliosus var. confinis Marcus E. Jones 1931-7-16 29131 Humboldt Junction east of Arcata Comment
  CAS-BOT-BC300683  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt At mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  RSA39091  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12360 Humboldt 1 mile west of Van Duzen Redwood State Park Comment
  RSA254794  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  CDA4960  Erigeron glaucus G. D. Barbe, T. C. Fuller 1974-6-17 1834 Humboldt Lower Pacific Drive at Sail Court, west of the golf course, south of the sewer plant, Shelter Cove. 0 Comment
  UC205158  Erigeron klamathensis Joseph P. Tracy 1919-9-25 5299 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC104433  Erigeron maniopotamicus Bianca Hayashi 2013-6-11 Humboldt Twin Lakes area, north of Board Camp Mountain 1280 Comment
  HSC5526  Erigeron philadelphicus W. K. Parks Jun 1932 1381 Humboldt Trinidad Comment
  JEPS867  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges, Klamath River 243 Comment
  SEINET10866398  Eriogonum Mary Susan Taylor 1990-8-22 Taylor 6082 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC259158  Eriogonum latifolium Milo S. Baker 1927-8-16 2453 a Humboldt Samoa Comment
  CAS-BOT-BC259181  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  UC6344  Eriogonum latifolium H. N. Bolander 1866-1 6569 Humboldt Shelter Cove Comment
  UC1222341  Eriogonum latifolium Joseph P. Tracy June 1950 18754 Humboldt near ocean shore (s of point of Cape; Devil's Gate); Cape Mendocino, Devil's Gate 3 Comment
  UC55505  Eriogonum luteolum var. luteolum P. E. Goddard 1901-7-12 82 Humboldt Hupa Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  HSC54511  Eriogonum nudum Overton, Butler 1979-7-23 9417 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  POM165532  Eriogonum nudum var. nudum Joseph P. Tracy 1916-6-20 4729 Humboldt North Coast Ranges: Dobbyn Creek 183 Comment
  UC54741  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 75 Humboldt Hupa Comment
  HSC72976  Eriogonum umbellatum D. K. Imper 1981-8-12 907 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  RSA21320  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC79540  Eriophyllum confertiflorum Kenneth Clark 1979-7-1 461 Humboldt Deadman's Gulch 11 Comment
  HSC48029  Eriophyllum lanatum Brad Klipfel 1974-6-25 425 Humboldt Horse Mtn. Comment
  HSC5592  Eriophyllum lanatum D. E. Anderson 1963-3-16 2384 Humboldt Scotia Bluffs Comment
  HSC56464  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-12 7262 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC75943  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-24 9706 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC91916  Eriophyllum lanatum var. arachnoideum E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  UC275337  Erodium botrys Joseph P. Tracy 1923-5-13 6206 Humboldt near Bridgeville; Northern Coast Ranges 213 Comment
  HSC8499  Erodium cicutarium D. E. Anderson 1962-3-17 1935 Humboldt 4 mi. S of Lone Star Ranch Comment
  HSC90471  Erodium cicutarium Jean Hanson 1980-4-12 34 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  HSC100485  Erodium moschatum Carl C. Marshall May 1886 197 Humboldt Yard's etc. Comment
  CAS-BOT-BC54909  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt Depression in coastal dunes near Humboldt Bay lighthouse between Fairhaven and end of Sandy point off Eureka. Comment
  UC1199174  Erysimum menziesii Joseph P. Tracy 1918-5-5 4920 Humboldt sand dunes of Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
Read comments
Apr 21 2012
  HSC26306  Erythronium californicum Thomas W. Nelson 1971-4-24 402 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  HSC75435  Erythronium citrinum var. citrinum J. O. Sawyer, M. A. Ericksen 1979-7-15 3414 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  HSC70568  Erythronium grandiflorum subsp. grandiflorum M. A. Baker 1980-7-19 3038 Humboldt Near Bret Hole. 1814 Comment
  HSC100888  Erythronium hartwegii Carl C. Marshall Jul 1886 334 Humboldt Trinity summit E of Hoopa. Comment
  RSA261455  Erythronium oregonum Suzanne May 1967-4-15 24 Humboldt Kneeland Road, 7 miles north of Bridgeville 213 Comment
  CAS-BOT-BC133333  Erythronium revolutum Doris K. Kildale; L. B. Kildale 1930-5-11 9536 Humboldt [Wire Grass] Wiregrass Prairie - The Bald Hills 792 Comment
  UC1197645  Erythronium revolutum Joseph P. Tracy 1924-3-30 6634 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  CAS-BOT-BC403040  Eschscholzia californica Carl W. Simpson 1941-5-8 19 Humboldt Garberville Comment
  UC146099  Eschscholzia californica Joseph P. Tracy 1904-7-4 2118 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC58818  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12103 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1199298  Eucephalus tomentellus Joseph P. Tracy 1930-7-19 9083 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1199300  Eucephalus tomentellus Joseph P. Tracy 1934-8-29 13621 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1199359  Euchiton gymnocephalus Joseph P. Tracy 1938-6-15 15936 Humboldt vicinity Carlotta 30 Comment
  HSC4304  Euonymus occidentalis D. E. Anderson 1961-9-23 1834 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC7993  Euphorbia peplus W. F. Nickel 1965-4-22 Humboldt H.S.U. campus on W side of Biological Science building Comment
  HSC83991  Euphorbia peplus L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 223 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  CAS-BOT-BC312209  Eurybia radulina Doris K. Kildale 1928-8-5 6266 Humboldt Bull Creek Flat, South Fork of Eel River Comment
  CAS-BOT-BC310679  Euthamia occidentalis Joseph P. Tracy 1927-10-8 8389 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC413854  Fallopia sachalinensis T. C. Fuller 1962-8-6 9364 Humboldt S. side of Hwy 299 to Willow Creek just e. of road to Bald Mtn., 11.2 mi. e. of Blue Lake Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  HSC65452  Festuca californica J. P. Smith, J. O. Sawyer 1973-5-12 6697 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  UCD65873  Festuca californica subsp. californica R. Tofsrud 1947-7-1 203 Humboldt Between Alder Point and Zinea. Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC9954  Festuca occidentalis R. H. Berg 1963-5-1 62 Humboldt HSU Campus, Arcata, CA Comment
  HSC9952  Festuca occidentalis D. J. Wilder 1965-4-24 8 Humboldt Along road to Maple Creek from Korbel. Comment
  UCD66284  Festuca roemeri Collector Unknown 1951-6-18 Humboldt Collected at Snail Ridge near Hydesville. Comment
  POM205853  Festuca rubra Jos Burtt Davy, Blasdale 1899-7-30 6180 Humboldt Ferndale. Comment
  UC187108  Festuca rubra Joseph P. Tracy 1906-6-24 2511 Humboldt near Fields Landing (s slope of Humboldt Hill); Northern Coast Region, Humboldt Bay Region, Humboldt Hill 0 Comment
  UC525639  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone Star Creek North Coast Ranges, Iaqua District 609 Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  SEINET200341 Image available Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt Buck Mountain lower foothills of its NW slope 762 Comment
  UC1198734  Fragaria Joseph P. Tracy 1935-7-27 14285 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  RSA256572  Fragaria californica A. Montalvo, J. D. Ackerman 1973-4-29 78 Humboldt 2 miles NE of Kneeland on road to Maple Creek. 457 Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC59966  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC59994  Frangula purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt Trinity Summit. On ridge 2 mi. e. of Grove's Prairie. 1524 Comment
  OBI36633  Frangula purshiana David J. Keil 1983-7-2 17306 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  SBBG4629  Frangula purshiana subsp. purshiana M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  HSC34506  Fritillaria affinis J. D. Ackerman 1975-5-3 440 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
  UC1197634  Fritillaria affinis Joseph P. Tracy 1919-4-27 5127 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC175284  Fritillaria affinis Joseph P. Tracy 1913-6-20 4228 Humboldt nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  CAS-BOT-BC130449  Fritillaria purdyi Elrid H. Spinas 1948-5-22 45 Humboldt Horse Mt. Comment
  HSC100641  Galium aparine Carl C. Marshall Jul 1887 402 Humboldt Humboldt. Comment
  HSC102634  Galium aparine M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1619 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1196095  Galium aparine Joseph P. Tracy 1935-7-23 14166 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC1196097  Galium bifolium Joseph P. Tracy 1930-7-16 8906 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC213147  Galium boreale subsp. septentrionale Joseph P. Tracy 1920-8-15 5357 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC39597  Galium grayanum var. grayanum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2917 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC38079  Galium muricatum Thomas W. Nelson, James Nelson 1976-5-30 2628 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1196101  Galium parisiense Joseph P. Tracy 1924-8-10 6801 Humboldt on river bar near Strong's Station (10 mi e of Carlotta); Northern Coast Ranges 60 Comment
  UC175593  Galium porrigens Joseph P. Tracy 1912-7-21 3767 Humboldt Alton Northern Coast Region 30 Comment
  JEPS52751  Galium porrigens var. porrigens L. T. Dempster and G. L. Stebbins 1963-7-8 3843 Humboldt at highway crossing n Willow Creek town; Willow Creek 140 Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  JEPS20468  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi se Blue Lake; Canyon Creek 365 Comment
  HSC40952  Gamochaeta ustulata Linda M. Barker 1976-7-5 1539 Humboldt 3 mi. W of Arcata. Comment
  UC165753  Gamochaeta ustulata J. P. Tracy 1906-5-20 2468 Humboldt immediate vicinity Eureka 0 Comment
  CHSC77463  Garrya elliptica Vernon H. Oswald 2000-4-3 9908 Humboldt Elk Head northwest of Trinidad. 24 Comment
  UC1215539  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt W. M. Lanphere's ranch 9 Comment
  CAS-BOT-BC182167  Garrya fremontii Clarence R. Quick 1959-7-24 59 -29 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC72925  Garrya fremontii Gail Newton 1980-7-22 1679 Humboldt Near Devils Backbone 231 Comment
  RSA134149  Garrya fremontii Percy C. Everett, E. K. Balls 1959-10-24 23952 Humboldt 2.8 mi SW from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 Comment
  RSA89596  Garrya fremontii M. F. Moseley 1952-8-21 346 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  UC668298  Garrya fremontii Joseph P. Tracy 1933-3-5 10918 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  CDA38573  Garrya fremontii T. C. Fuller, T. Gallion 1959-7-23 2833 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  RSA129632  Gastridium phleoides H. S. Yates 1936-6-23 5877 Humboldt 4 miles NNE of Cathay Peak. Comment
  RSA44456  Gastridium phleoides Henry M. Pollard 1948-7-19 s.n. Humboldt Between Orleans and Van Fleet Comment
  SEINET200308  Gastridium phleoides J. P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC48798  Gaultheria ovatifolia Brad Klipfel 1974-9-17 583 Humboldt W of Friday Ridge above the E Fork of Willow Creek Comment
  HSC47492  Gaultheria shallon Sheila Logan 1978-4-9 16 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  RSA467228  Gaultheria shallon Anstruther Davidson 1927-08 s.n. Humboldt No location noted. Comment
  HSC102921  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1015 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC562364  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC505119  Gayophytum heterozygum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9050 1/2 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC153983  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2139 Humboldt immediate vicinity Eureka (open grassy lands) 0 Comment
  CAS-BOT-BC217409  Gentiana plurisetosa E. V. Jotter 1912-10-1 247 Humboldt Trinity Summit, Trinity Forest 1524 Comment
  HSC57882  Gentiana plurisetosa Walter Overton, Marvin Butler 1979-7-31 11420 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS61428  Geranium dissectum Lincoln Constance 1934-6-7 833 Humboldt Johnson Prairie South Fork Eel River, Bull Creek Region Comment
  HSC100487  Geranium incisum Carl C. Marshall Jun 1885 106 Humboldt Hills. Comment
  UC165813  Geranium molle Joseph P. Tracy 1901-5-12 1074 Humboldt Eureka Northern Coast Region 0 Comment
  UC249572  Geranium oreganum Joseph P. Tracy 1922-6-18 6094 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  HSC54201  Gilia capitata Gilbert Muth 1979-7-12 7238 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  SEINET10464626  Githopsis specularioides Chandler CHANDLER 1345 Humboldt Hupa Indian Reservation 152 Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  UC1223069  Glebionis segetum Joseph P. Tracy 1950-6-17 18831 Humboldt at Eureka Comment
  CAS-BOT-BC218435  Glehnia littoralis subsp. leiocarpa Carl B. Wolf 1937-6-18 8906 Humboldt Centerville Beach 3 Comment
  SJSU8439  Glehnia littoralis subsp. leiocarpa H. T. Harvey 1977-7-5 606 Humboldt Elk R Spit, Humboldt Bay Comment
  UC1197366  Glehnia littoralis subsp. leiocarpa Hattie F. Tracy 1902-6-17 1748 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  UC1541565  Glyceria elata Harold E. Parks Sep 1928 175 Humboldt Big Lagoon Comment
  UC526909  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka; Northern Coast Ranges 0 Comment
  POM92418  Gnaphalium chilense L. R. Abrams 1922-6-25 8223 Humboldt 6 miles N of Garberville Comment
  HSC67008  Gnaphalium palustre J. P. Smith 1971-10-9 5037 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC164801  Gnaphalium palustre J. P. Tracy 1900-8-5 918 Humboldt immediate vicinity Eureka 0 Comment
  UC630459  Gnaphalium palustre H. E. and S. T. Parks 1937-7 24026 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  POM247117  Gnaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt Fickle Hill, 6 miles SE of Arcata. 610 Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  HSC38741  Goodyera oblongifolia J. D. Ackerman 1975-5-3 441 Humboldt Hwy. 299, 200 yds. E of Lord Ellis Summit, W of Blue Lake and Redwood Creek Comment
  UC13522  Goodyera oblongifolia Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  JEPS41894  Grindelia hirsutula W. L. Jepson 1936-8-17 17924 Humboldt 2.5 mi s of Fields Landing (flats) Comment
  SEINET193102  Grindelia hirsutula var. davyi Y. W. Winblad 1941-6-24 Humboldt Between Garberville and Hartsook Comment
  CDA6171  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  POM318612  Grindelia stricta var. stricta Patricia Wilder 1968-8-21 4375 Humboldt Big Lagoon Park, just west of U.S. 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 15 Comment
  UC201390  Guillenia lasiophylla Joseph P. Tracy 1918-5-1 4907 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  SEINET11678982  Hainardia cylindrica J. P. Tracy 1938-1 16071 Humboldt mouth of Eel River 3 Comment
  POM160314  Hastingsia serpentinicola Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain. 1463 Comment
  UC450223  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  JEPS35025  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt at McKay Camp South Fork Mountain 1676 Comment
  SEINET5711017  Helenium bigelovii Lowell E. Urbatsch 1990-1 6798 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the rd. to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this road (FS 7 NO4) travel 1.5 miles to another fork; continue on 7NO4N (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  JEPS35027  Helenium bolanderi Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  CAS-BOT-BC123524  Helenium decurrens Joseph Prince Tracy 1901-5-1 1204 (Harley Chandler's number?) Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC39775  Helminthotheca echioides Peter Sorensen 1976-8-19 Humboldt Woodley Island Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC582432  Helminthotheca echioides Joseph P. Tracy 1937-8-22 15676 Humboldt near Loleta 9 Comment
  UCD132965  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  UCD132967  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  CAS-BOT-BC453382  Hemitomes congestum Gary Wallace 1973-7-11 1252 Humboldt Prairie Creek Redwoods State Park, north of Orick Comment
  HSC44613  Hemitomes congestum R. York 1978-6-5 190 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 123 610 Comment
  CAS-BOT-BC310077  Hemizonella minima Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC73668  Hemizonella minima M. A. Baker 1980-7-15 2962 Humboldt Near Whiting Ridge. 1341 Comment
  HSC70956  Hemizonella minima Thomas W. Nelson 1977-6-15 3431 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  CAS-BOT-BC309988  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Northern Coast Ranges. Three Cabins; on lower western foothills of Chaparral Mountain 457 Comment
  HSC32921  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson 1973-5-28 967 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC35966  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-21 1950 Humboldt Beside Hwy. 36 ca. 5 mi. E of Bridgeville Comment
  HSC5819  Hemizonia congesta subsp. tracyi H. E. Parks May 1934 5076 Humboldt Bridgeville 152 Comment
  JEPS12642  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  HSC38910  Heracleum maximum J. P. Smith 1970-6-7 3801 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC74502  Heracleum maximum Gail Newton 1980-8-10 2049 Humboldt Near Blake Mtn. 1707 Comment
  HSC99511  Heracleum maximum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 173 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC98052  Heracleum maximum Cara Witte 2007-7-9 453 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1554 Comment
  UC1199420  Hesperevax acaulis var. robustior Joseph P. Tracy 1937-5-31 15322 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 Comment
  CAS-BOT-BC311080  Heterotheca oregona var. rudis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC25982  Heterotheca oregona var. rudis Thomas W. Nelson 1970-9-3 233 Humboldt Mad River. Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC1222390  Heuchera micrantha Joseph P. Tracy 1950-6-8 18716 Humboldt 2 mi s Ferndale (Wild Cat Road, at the Sand Cut) 304 Comment
  CAS-BOT-BC424197  Heuchera micrantha var. hartwegii Elizabeth Parsons Hawver 1914-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC425003  Heuchera micrantha var. micrantha Huron H. Smith 1911-6-6 3794 Humboldt Little River Jc. Comment
  HSC98119  Heuchera micrantha var. pacifica Cara Witte 2007-5-23 104 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  HSC56128  Heuchera rubescens G. L. Clifton, Griswold 1979-8-1 11931 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC31200  Hieracium albiflorum D. E. Anderson 1972-6-20 5745 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC100438  Hieracium albiflorum Carl C. Marshall Jun 1886 259 Humboldt Near Hoopa. Comment
  HSC44135  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3577 Humboldt Along W side of road N from Alder Spring, head of N Fork of Conley Creek 1463 Comment
  POM360469  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower south slope of Mt. Lassic (Signal Peak). 1494 Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  HSC10933  Holcus lanatus Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  POM203237  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  SEINET10591413  Holcus lanatus Huron H. Smith 1911-1 Smith 3772 Humboldt Comment
  UC922018  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka 30 Comment
  RSA449759  Holodiscus discolor Thekla Mohr 1918-07 3349 Humboldt Eel River. Comment
  HSC58607  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-25 10949 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  HSC79356  Hordeum murinum subsp. glaucum Kenneth Clark 1980-5-10 644 Humboldt Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  HSC10231  Hordeum vulgare S. J. Hawks 1965-4-6 23 Humboldt Along Clam Beach access road. Comment
  UC183616  Horkelia californica Joseph P. Tracy 1912-7-22 3791 Humboldt Northern Coast Ranges, Table Bluff 91 Comment
  JEPS83627  Horkelia tridentata subsp. flavescens R. Raiche 1988-5-12 80113 Humboldt 6.6 mi sw Hoopa (on Bair Rd., Supply Crk. drainage) Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  SBBG64581  Hydrocotyle ranunculoides A. Keedy 1988-9-20 13 Humboldt Arcata Salt Marsh Project Comment
  UC1762196  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  UC1586870  Hydrophyllum fendleri var. albifrons Juha Pykala and D. H. Norris 1987-6-11 1587 Humboldt w of Crogan Hole (n of Trinity Mountain Wilderness, s of North Trinity Mountain) 1554 Comment
  UC1239762  Hydrophyllum occidentale Joseph P. Tracy 1908-6 2633 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  JEPS1637  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Ranges 0 Comment
  JEPS1641  Hydrophyllum tenuipes W. L. Jepson 1932-7-27 16427 Humboldt Bull Creek 106 Comment
  UC169025  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC1103553  Hypericum anagalloides Joseph P. Tracy 1935-7-25 14229 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC91879  Hypericum anagalloides E. Mackey 1987-8-29 Humboldt Patrick's Point State Park, in woods near Palmer's Point Comment
  RSA60489  Hypericum mutilum John H. Thomas 1949-6-12 899 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  UC902119  Hypericum perforatum Joseph P. Tracy 1943-8-23 17444 Humboldt Eureka 6 Comment
  CAS-BOT-BC401228  Hypericum perforatum Doris K. Kildale 1925-6-20 711 Humboldt Coast above Big Lagoon Comment
  SEINET6178750  Hypericum perforatum Dunn Bennett, Dziekanowski 1976-8-6 479 Humboldt By Hwy 101, N Side of Orick. Rocky area, densely forested by river.; 0 30 Comment
  HSC39792  Hypochaeris glabra Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  UC164814  Hypochaeris glabra J. P. Tracy 1903-8-9 1947 Humboldt Eureka 0 Comment
  JEPS36538  Hypochaeris radicata Lincoln Constance 1934-5-31 762 Humboldt along n side Bull Creek (from w boundary of park to Grasshopper Peak Road, Squaw Creek Road); South Fork Eel River, Bull Creek Region, Bull Creek flat Comment
  UC204783  Hypochaeris radicata Joseph P. Tracy 1918-7-5 5023 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC311433  Hypochaeris radicata Frank W. Peirson 1923-7-9 3934 Humboldt Auto camp on Eel River, Humboldt County State Park Comment
  HSC100106  Hypochaeris radicata A. Montalvo 1975-5-24 271 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC206838  Iliamna latibracteata H. E. Parks; S. T. Parks 1935-6-1 5593 Humboldt East of Prairie Creek, north of Orick Comment
  RSA2927  Iliamna latibracteata Carl B. Wolf 1931-8-28 2367 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  SEINET5536070 Image available Impatiens glandulifera W. J. Ferlatte, B. D. Rogers 1966-1 3128 Humboldt Lampheres Garden Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC896984  Iris douglasiana Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  RSA137356  Iris douglasiana Lee W. Lenz, E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Highway 299 366 Comment
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  HSC100379  Iris macrosiphon J. Moore 2007-6-13 Humboldt Horse Mountain Botanical Area, off Hwy. 1. 1220 Comment
  HSC36635  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1907 Humboldt End of road to Pine Mtn. Comment
  RSA135894  Iris purdyi Lee W. Lenz 1953-5-17 18320 Humboldt 4.5 miles west of Willow Creek, Highway 299 Comment
  JEPS93202  Iris tenax subsp. klamathensis Carol A. Wilson 1986-5-15 86 -4 Humboldt near Orleans (along road (Orleans Alternate/Ishi Pishi Rd) where crosses Ishi Pishi Bridge just s of Somes Bar); Orleans Alternate/Ishi Pishi Rd Comment
  HSC73242  Iris tenuissima M. A. Baker 1980-5-18 1339 Humboldt Near Black Mtn. 792 Comment
  HSC96255  Iris tenuissima Laurel Goldsmith, Wanda Naylor 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  SEINET3875940  Iris tenuissima Thomas Nelson, James Nelson 1973-5-28 935 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC67160  Iris tenuissima J. P. Smith, J. O. Sawyer 1973-5-12 6669 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC97581  Iris tenuissima subsp. tenuissima Cara Witte 2007-5-29 131 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  BLMAR304  Jaumea carnosa Jennifer Anthony-Wheeler 2002-7-1 304 Humboldt South Spit 6 Comment
  CAS-BOT-BC102330  Juglans regia Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce Creek, Orleans region Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  UC303152  Juncus balticus subsp. ater Joseph P. Tracy 1925-8-2 7221 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC105149  Juncus bolanderi Peter F. Zika 2008-10-19 24230 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach (North Coast NCo) 110 Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  HSC44317  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1977-9-3 3735 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  UC249542  Juncus bolanderi Joseph P. Tracy 1921-10-16 5971 Humboldt near Willow Creek (mouth of South Fork Trinity River); Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC88880  Juncus breweri L. P. Janeway; B. Castro 2004-9-10 8320 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  UC1152115  Juncus bufonius Joseph P. Tracy 1930-10-19 9233 Humboldt near Alton; Eel River Comment
  UCD170786  Juncus bufonius var. bufonius Gordon Leppig 1998-5-11 757 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  UC249747  Juncus covillei var. obtusatus Joseph P. Tracy 1923-6-19 6294 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC183684  Juncus covillei var. obtusatus Joseph P. Tracy 1904-7-17 2122 Humboldt Hydesville Northern Coast Ranges 60 Comment
  POM170510  Juncus effusus subsp. pacificus Le Roy Abrams 1916-7-18 6102 Humboldt Arcata to Trinidad. Comment
  UC1101013  Juncus ensifolius Malcolm A. Nobs and S. Galen Smith 1949-8-3 1199 Humboldt s outskirts Eureka Comment
  UC1152100  Juncus ensifolius Joseph P. Tracy 1927-8-22 8343 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UCD141540  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt Bald Mountain; east of Korbel. About a mile north of Murphy meadow. Comment
  HSC102214  Juncus exiguus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1130 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC104132  Juncus falcatus subsp. falcatus C. Sander 2007-8-24 33096 Humboldt Ma-le'l Dunes Cooperative Management Area. 8 Comment
  RSA167236  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt On rock ledges at Ishi-pishi Falls west side of Klamath River opposite mouth of Salmon River. Comment
  UC902208  Kickxia elatine Joseph P. Tracy 1946-8-25 17648 Humboldt near mouth of Van Duzen River; Eel River 15 Comment
  POM206591  Koeleria macrantha Jos Burtt Davy, W. C. Blasdale 1899-6-9 5375 Humboldt Near Harris Comment
  UCD85995  Koeleria macrantha Joseph P. Tracy 1936-8-2 15071 Humboldt French Camp Ridge. 1066 Comment
  CAS-BOT-BC273597  Koeleria pyramidata Harley P. Chandler 1901-6-1 1342 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  UC1051585  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt 15 Comment
  UC1051587  Lactuca serriola Joseph P. Tracy 1943-11-28 17461 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  CDA5667  Lamiastrum galeobdolon Gordon Leppig, K. Neander 2000-4-13 1292 Humboldt Arcata Community Forest, 100 meters south of trail 5 & 10 intersection, Arcata. Comment
  CAS-BOT-BC324946  Lasthenia californica subsp. bakeri Dr. A. Kellogg; W. G. W. Harford 1868-1-1 464 Humboldt Eureka Comment
  UC30471  Lasthenia californica subsp. macrantha Bolander Humboldt Comment
  JEPS17255  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC1103808  Lasthenia glaberrima Joseph P. Tracy 1921-6-12 5826 Humboldt Butler Valley Northern Coast Ranges, Butler Valley 152 Comment
  CAS-BOT-BC352933  Lasthenia glaberrima Joseph P. Tracy; Harold E. Parks 1935-6-16 11274 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  JEPS98949  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Red Mountain (type locality) Comment
  JEPS55352  Lathyrus glandulosus Lincoln Constance 1934-6-8 837 Humboldt Cow Creek fire-trail, from Bull Creek road, n over the divide, into the headwaters of Bear Creek South Fork Eel River, Bull Creek Region, Bear Creek Comment
  UC1368671  Lathyrus glandulosus J. P. Tracy 1948-8-7 18085 Humboldt Fickle Hill 609 Comment
  UC162794  Lathyrus glandulosus Joseph P. Tracy 1906-6-10 2474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1199082  Lathyrus jepsonii var. californicus Joseph P. Tracy 1936-6-17 14964 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC495705  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-4-10 7893 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  RSA239724  Lathyrus littoralis Larry E. DeBuhr, Gary D. Wallace 1973-5-22 1152 Humboldt In sand at beach at Big Lagoon. Comment
  HSC39108  Lathyrus nevadensis var. nevadensis D. E. Anderson, J. P. Smith 1971-7-6 Humboldt Horse Mtn. Comment
  UC1222408  Lathyrus polyphyllus Joseph P. Tracy 1949-8-11 18474 Humboldt 2-6 mi s Grouse Mt. (ridge e of headwaters of Redwood Creek, where power line crosses); Kinsey Ridge 1280 Comment
  UC1222412  Lathyrus polyphyllus Joseph P. Tracy 1950-7-2 18975 Humboldt near Grizzly Camp (on Little Hors Linto Creek); Trinity Summit, Little Hors Linto Creek Comment
  UC495708  Lathyrus polyphyllus Joseph P. Tracy 1932-7-20 10735 Humboldt just w Corral Prairie; Klamath Mountains 1524 Comment
  UC931687  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19090 Humboldt ca 10 mi w Willow Creek (near Highway 299) Comment
  HSC14756  Lathyrus torreyi Lincoln Constance 1934-5-24 633 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  JEPS55330  Lathyrus vestitus var. ochropetalus W. L. Jepson 1902-6-24 1930 Humboldt Korbel to Angel's Ranch (n Humboldt County) Comment
  CAS-BOT-BC325928  Layia carnosa D. E. Breedlove 1962-6-7 3040 Humboldt Sand dunes 1.5 miles S of Samoa on peninsula on western side of Humboldt Bay. Comment
  HSC39959  Layia carnosa Linda M. Barker 1976-4-13 1377 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  UC153946  Layia carnosa Joseph P. Tracy 1910-4-24 3121 Humboldt Humboldt Bay Comment
  UC1199156  Layia gaillardioides Joseph P. Tracy 1927-6-18 8182 Humboldt Cape Mendocino 3 Comment
  RSA15571  Leontodon nudicaulis C. B. Wolf 1927-8-28 1188 -A Humboldt Eureka Bay, on the road to Arcata. Comment
  CAS-BOT-BC339130  Leontodon saxatilis subsp. saxatilis Alice Eastwood 1923-8-16 12340 Humboldt Carlotta Comment
  UC205156  Lessingia nemaclada Joseph P. Tracy 1919-9-14 5211 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  SEINET3071950  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-1 2885 Humboldt Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 150 Comment
  HSC102127  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1031 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC32134  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC673015  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC32150  Lewisia triphylla D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5597 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC98516  Lewisia triphylla C. Witte 2007-5-18 45 Humboldt Near Bottleneck Spring. 1575 Comment
  BLMAR412  Leymus X vancouverensis Jennifer Wheeler 2007-8-22 412 Humboldt South Spit, East side, eastern edge of north end Comment
  UC1197169  Ligusticum grayi Joseph P. Tracy 1932-7-12 10444 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC35939  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Just E of Redwood National Park along Bald Hills Rd. Comment
  CAS-BOT-BC508401  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8297 Humboldt Bluffs north of Big Lagoon Comment
  CAS-BOT-BC130633  Lilium kelloggii A. M. Vollmer; L. Beane 1951-7-1 173 Humboldt Freshwater, about 4-5 miles northeast of Eureka Comment
  HSC35594  Lilium kelloggii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2005 Humboldt French Camp, Bald Hills. Comment
  RSA130331  Lilium kelloggii Albert M. Vollmer, L. Beane 1953-07 119 Humboldt Freshwater Comment
  RSA74745  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohns cabin, Bald Mountain, east of Korbel Comment
  UC1198245  Lilium occidentale Joseph P. Tracy 1938-7-15 16065 Humboldt 2 mi s Field's Landing (near Still Ranch) 6 Comment
  UC1198247  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  CAS-BOT-BC130732  Lilium pardalinum Doris K. Kildale 1928-7-25 5693 Humboldt Chalk Mountain 914 Comment
  UC1198234  Lilium pardalinum Joseph P. Tracy 1926-6-1 7552 Humboldt Eureka Northern Coast Ranges (in garden) Comment
  UC666951  Lilium pardalinum Joseph P. Tracy 1930-7-17 8999 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  HSC15580  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  CHSC19489  Limnanthes douglasii Norman Dennis 1965-6-11 113 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  UC1197414  Limnanthes douglasii Joseph P. Tracy 1927-6-5 8106 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC90756  Limonium californicum Gail Newton 1983-8-21 3853 Humboldt Elk River Wildlife Area, Eureka. Comment
  POM254102  Limonium californicum C. C. Harris, S. K. Harris 1939-9-8 973 Humboldt South shore of Humboldt Bay. Comment
  UC146168  Linanthus androsaceus Joseph P. Tracy 1908-6 2746 Humboldt nw slope Buck Mountain; Northern Coast Ranges 457 Comment
  UC1198569  Linanthus bicolor Joseph P. Tracy 1911-6-25 3255 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC146165  Linanthus bicolor Joseph P. Tracy 1908-6-9 2651 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC582685  Linanthus bicolor Joseph P. Tracy 1937-5-17 15287 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC57865  Linnaea borealis subsp. longiflora G. L. Clifton 1979-7-31 11390 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76302  Linnaea borealis subsp. longiflora Teresa Prendusi 1981-7-9 174 Humboldt Near Cedar Camp. 1268 Comment
  UC179969  Linnaea borealis var. longiflora Joseph P. Tracy 1914-7-5 4571 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  SJSU918  Linnaea borealis var. longiflora J. W. Tilden 1946-6-2 999 Humboldt Bluff Cr c. 1.5 mi above its junction with Klamath R Comment
  HSC46152  Linum bienne J. P. Smith 1973-5-26 6828 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC73409  Listera cordata var. nephrophylla Bruce Potter, Leslie Sieburth, Susan Ahrens 1981-4-19 653 Humboldt 229 Comment
  UC1196365  Lithocarpus densiflorus Joseph P. Tracy 1948-8-15 18137 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1196367  Lithocarpus densiflorus Joseph P. Tracy 1921-10-2 5964 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  SEINET12034163  Lithocarpus densiflorus K. S. Erdman 1970-1 4793 Humboldt Redwood Natl Park naer Holter Ridge entrance on the Bald Hills road SE of Orick;T10N,R2E,Sec18 Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  CAS-BOT-BC283405  Lolium multiflorum Carl B. Wolf 1927-8-29 1215 Humboldt Seacoast, Devil's Gate, S of Cape Mendocino Comment
  UC50710  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6187 Humboldt Cape Mendocino Comment
  HSC64156  Lolium perenne J. O. Sawyer, K. A. Sawyer 1979-6-24 3403 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC72637  Lolium perenne J. P. Smith 1977-7-3 9246 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC1103156  Lolium temulentum Joseph P. Tracy 1913-6-19 4211 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222609  Lomatium dissectum Joseph P. Tracy 1950-6-15 18805 Humboldt 7 mi N of Harris (Jenk's Ranch) Comment
  HSC97218  Lomatium tracyi K. Auker, R. Battleson 2007-6-11 3 Humboldt Near Grouse Mtn., 11.9 mi. S of Hwy. 299 on F.S. Rd. NF1 1585 Comment
  JEPS14247  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  UC906647  Lomatium triternatum var. triternatum Joseph P. Tracy 1947-7-5 17778 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC38861  Lomatium utriculatum J. P. Smith, J. O. Sawyer 1973-5-12 6678 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  HSC58184  Lonicera conjugialis G. L. Clifton, Griswold 1979-8-2 12272 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC58290  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12554 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC58297  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12570 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC81687  Lonicera conjugialis Thomas W. Nelson 1979-7-11 5001 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  BLMAR175  Lonicera hispidula Donald Hazlett 1994-6-7 175 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  CHSC31276  Lonicera hispidula Mark Stopher 1980-5-28 73 Humboldt Growing on Lithocarpus densiflorus along Rte 169, 1.8 mi E of Martins Ferry Bridge. Comment
  UCSB15522  Lonicera involucrata Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC241480  Lonicera involucrata var. ledebourii Carl B. Wolf 1927-8-29 1204 Humboldt Near mouth of Bear River, Capetown Comment
  CAS-BOT-BC241484  Lonicera involucrata var. ledebourii Doris K. Kildale 1925-9-26 1363 Humboldt Mouth of Mad River - coast Comment
  CHSC23308  Lonicera involucrata var. ledebourii Robert F. Thorne; P. Everett 1965-8-9 35301 Humboldt Big Lagoon 3 Comment
  CHSC68491  Lonicera involucrata var. ledebourii Vernon H. Oswald 1997-4-10 8319 Humboldt Road paralleling Hwy 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  HSC3930  Lonicera involucrata var. ledebourii R. A. Rasp 1964-5-7 37 Humboldt 2 mi. S of Korbel on Simpson Lumber Co. land. Comment
  UC1239556  Lonicera involucrata var. ledebourii Joseph P. Tracy 1923-6-17 6269 Humboldt Big Lagoon 3 Comment
  SEINET5736925 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 4.5 miles to collection site. Comment
  UC1223437  Lotus corniculatus Joseph P. Tracy 1938-6-7 15863 Humboldt n side Mad River (about 0.5 mi e of bridge on Trinity Highway) Comment
  HSC25291  Lotus corniculatus R. Spellenberg 1964-6-15 409 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  UC162607  Lotus crassifolius var. crassifolius Harley P. Chandler Jun 1901 1470 Humboldt Orleans Bar to Sommes Bar; North Coast Ranges 365 Comment
  UC1073328  Lotus formosissimus George B. Rossbach 1955-6-10 332 Humboldt Madison Grant Elk Refuge Prairie Creek Redwoods State Park Comment
  HSC38494  Lotus humistratus D. E. Anderson, J. P. Smith 1971-6-18 - 1092 Humboldt Horse Mtn. Comment
  HSC45614  Lotus humistratus Diane L. Reed 1978-5-7 51 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  UC15617  Lotus humistratus C. C. Marshall 1888-1 Humboldt Comment
  UC179938  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1914-7-4 4527 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC15500  Lotus purshianus var. purshianus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5613 Humboldt Bald Mt. Comment
  UCSB30590  Lotus uliginosus Edwards, David 1974-8-12 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  POM276696  Lotus unifoliolatus Lyman Benson 1928-7-11 433 Humboldt Weott Ranger Station. 61 Comment
  HSC97955  Lupinus adsurgens Cara Witte, Michael Scott 2007-6-22 349 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  HSC36638  Lupinus albifrons var. flumineus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1904 Humboldt Beside Rd. 2S08 to Pine Mtn. 1555 Comment
  CDA27379  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC31465  Lupinus arboreus Steve Selva, Roger Jensen 1974-8-28 89 Humboldt Approx. 10 mi. S of Arcata on the sand dunes of the Samoa Peninsula Comment
  HSC40974  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  LA205182  Lupinus arboreus C. B. Wolf; 1930-10-28 1780 Humboldt Samoa, Humboldt Bay 15 Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA98774  Lupinus arboreus var. arboreus P. A. Munz 1954-7-25 19868 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC103986  Lupinus bicolor E. R. Fyer 2015-4-26 26 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  UC179935  Lupinus bicolor Joseph P. Tracy 1914-7-5 4561 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  SEINET6932627  Lupinus bicolor Wanda P. Vestal, A. G. Vestal 1937-6-19 s.n. Humboldt Terrace west of Eel River, 2 miles west of Gaberville. Comment
  UC157019  Lupinus formosus Joseph P. Tracy 1904-7-4 2113 Humboldt Bucksport; region about Humboldt Bay, Bucksport 0 Comment
  HSC57313  Lupinus latifolius Griswold, Butler 1979-7-10 6326 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC503013  Lupinus latifolius var. latifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8970 Humboldt near McKay Camp South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1223288  Lupinus latifolius var. latifolius Joseph P. Tracy 1936-7-5 15036 Humboldt top Grouse Mountain; top of Grouse Mountain 1524 Comment
  UC1299159  Lupinus lepidus var. lobbii Freed W. Hoffman 1949-7-16 2830 Humboldt in Mt. Lassic area on Pine Mountain (eastern Humboldt County); North Coast Ranges, Mt. Lassic area, Pine Mountain 1524 Comment
  UC1281746  Lupinus lepidus var. sellulus Richard Spellenberg 1965-6-13 1110 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); e side Trinity Riverk hw through Hoopa Indian Reservation Comment
  UC184850  Lupinus luteolus Joseph P. Tracy 1911-7-10 3496 Humboldt Valley of Trinity River near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River nr Willow Cre 152 Comment
  UCD108608  Lupinus luteolus R. Tofsrud 1951-1 s.n. Humboldt Exact location unknown. Comment
  HSC41636  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3511 Humboldt Along rd. to Pine Mtn. SW of Alder Springs 1494 Comment
  UC667008  Lupinus nanus Joseph P. Tracy 1939-4-29 16231 Humboldt Hoopa Valley 106 Comment
  SEINET200687  Lupinus propinquus J. P. Tracy 1901-6-16 1141 Humboldt Bluff at Bucksport, immediate vicinity of Eureka. 152 Comment
  JEPS29845  Lupinus rivularis Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7835 Humboldt about 1 mi w of Carlotta (or about 1/2 mi e of Hydesville) Comment
  POM10718  Lupinus sellulus var. medius H. P. Chandler 1498 Humboldt Klamath River. 427 Comment
  SD39056  Lupinus tidestromii Edith A. Purer 1932-7-25 4142 Humboldt Near Somoa Comment
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Apr 4 2020
  HSC58118  Lupinus tracyi G. L. Clifton, Griswold 1979-8-1 12083 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC100503  Luzula Carl C. Marshall May 1886 219 Humboldt Gulch E of Arcata. Comment
  HSC98044  Luzula comosa Cara Witte 2007-5-31 163 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  CAS-BOT-BC436735  Luzula comosa var. laxa Doris Kildale Gillespie 1931-6-7 10661 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CHSC117678  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Titlow Hill Road, near junction with Forest Road 6N36, 1 air mile S of Horse Mountain, Outer North Coast Ranges. 1410 Comment
  UC183777  Luzula macrantha Joseph P. Tracy 1901-5-12 1087 Humboldt At Eureka; Northern Coast Region 0 Comment
  LA205865  Lycopodiella inundata Lawrence L. Kiefer; D. Branscomb 1964-5-20 1436 Humboldt Big Lagoon State Park 15 Comment
  UC1440279  Lycopodiella inundata L. L. Kiefer and D. Branscomb 1964-5-20 1436 Humboldt in the sphagnum bog Big Lagoon State Park 15 Comment
  HSC95500  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt Pacific Lumber Co. land, NE edge of THP 1-04-001 HUM. 300 Comment
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  JEPS370  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt woods around a swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  CDA42448  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt The Pacific Lumber Company land, northeast edge of THP 1-00-032 HUM, Unit 1. Comment
  SEINET7838508 Image available Lycopodium clavatum Unknown Humboldt "camp 21", Hammond Lumber Compant, Trinidad 152 Comment
  UC176173  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC46151  Lythrum hyssopifolia J. P. Smith 1973-5-26 6814 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC34191  Madia elegans Harley P. Chandler 1901-6-1 1409 Humboldt Klamath River North Coast Ranges 243 Comment
  UC176862  Madia elegans Joseph P. Tracy 1911-7-6 3355 Humboldt between Three Creeks and mouth of Willow Creek 762 Comment
  CAS-BOT-BC343020  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CAS-BOT-BC343024  Madia gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill 30 Comment
  JEPS40411  Madia gracilis W. L. Jepson 1902-7-1 1967 Humboldt at Berry's Ranch; Redwood Creek Comment
  RSA249398  Madia madioides D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5696 Humboldt McKeown Ranch north of Dinsmore Comment
  RSA0011631  Madia sativa R. F. Thorne, Percy C. Everett 1965-8-7 35216 -b Humboldt Samoa Peninsula. 0 Comment
  HSC99058  Mahonia pinnata subsp. pinnata Cara Witte 2008-7-2 802 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  CAS-BOT-BC508503  Maianthemum dilatatum Wayne Roderick 1967-7-22 s.n. Humboldt Trinidad 30 Comment
  CAS-BOT-BC508512  Maianthemum dilatatum H. C. Cantelow 1936-5-18 s.n. Humboldt 5 miles north of Orick Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  SD46488  Maianthemum dilatatum E. K. Balls, L. W. Lenz 1956-6-12 21668 Humboldt 4.7 miles south of Humboldt-Del Norte County line, U.S. Highway 101, Arcata to Crescent City. O forest floor in deep humus. 60 Comment
  HSC40028  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-6-22 2874 Humboldt Area at Goat Hill. 1666 Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC511454  Maianthemum racemosum subsp. amplexicaule Doris K. Kildale 1926-3-26 1640 Humboldt Old Fortuna road 609 Comment
  CAS-BOT-BC511458  Maianthemum racemosum subsp. amplexicaule Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  CAS-BOT-BC512773  Maianthemum stellatum D. Baxter; S. Boren; C. Williams 1994-5-6 47 Humboldt West side of Titlow Road 0.35 miles south of Highway 299 853 Comment
  CAS-BOT-BC347412  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata Comment
  POM187937  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata. Comment
  UC127825  Malacothrix floccifera Harley P. Chandler June, 1901 1360 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  POM56123  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC7033  Marah oregana R. I. Bonn 1965-5-9 48 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  SJSU2541  Marah oregana H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  UC168955  Marah oregana Joseph P. Tracy 1904-7-17 2120 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC16107  Medicago lupulina Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5532 Humboldt near Scotia Comment
  HSC14987  Medicago lupulina J. E. Lankilla 1962-5-14 29 Humboldt West bank of river 1/2 mi. S of Fernbridge Comment
  HSC79458  Medicago minima Kenneth Clark 1980-4-18 586 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  UC1145137  Melica californica Joseph P. Tracy 1938-6-9 15886 Humboldt 2 mi nw Harris (Mail Ridge) 914 Comment
  UC552700  Melica californica Joseph P. Tracy 1935-5-25 13888 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  JEPS75422  Melica geyeri W. L. Jepson 1932-7-30 16458 Humboldt Bull Creek 121 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  CAS-BOT-BC281026  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole, Trinity Summit 1828 Comment
  SEINET200110 Image available Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Trinity Summit head of Brett Hole 1830 Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UC187219  Melica subulata Joseph P. Tracy 1911-6-4 3227 Humboldt along Litte River, 5 mi from coast Little River, North Coast 121 Comment
  UC188816  Melica subulata Jos. Burtt Davy and W. C. Blasdale 1899-6-22 5822 b Humboldt Trinity Summit Comment
  UC552707  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda; along South Fork of Eel River 121 Comment
  HSC98074  Melilotus albus Cara Witte 2007-7-12 529 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC577383  Mentha pulegium Joseph P. Tracy 1933-8-22 12985 Humboldt near Loleta; near Loleta 6 Comment
  HSC34216  Mentha pulegium J. P. Smith 1975-7-6 8356 Humboldt Sizzler Steak House on 5th St. Eureka Comment
  RSA600662  Mentha pulegium Louis C. Wheeler 1950-8-14 6779 Humboldt Shelter Cove. Comment
  HSC32553  Mentzelia dispersa Thomas W. Nelson 1973-7-10 1033 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Pk.) 1790 Comment
  JEPS26724  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1936-8-17 17939 Humboldt near Arcata; Mad River Comment
  HSC37227  Menyanthes trifoliata Anonymous 1976-5-14 Humboldt NW of McClellan Mtn. Comment
  SEINET2031086 Image available Menziesia ferruginea Joseph P. Tracy 1908-1 2676 Humboldt Region about Humboldt Bay; in redwood forest on Freshwater Creek 0 Comment
  SEINET3410193 Image available Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit; Rocky exposed places, Near Ranger Station 1829 Comment
  UC164796  Microseris bigelovii J. P. Tracy 1902-6-20 1749 Humboldt immediate vicinity Eureka 0 Comment
  UC204748  Microseris bigelovii Joseph P. Tracy 1918-7-3 4993 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC1223196  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17169 Humboldt five mi n Garberville (along Eel River from South Fork Eel River to Scotia); Northern Coast Ranges, along Eel River from South Fork 60 Comment
  UC204745  Microseris laciniata subsp. laciniata Joseph P. Tracy 1918-7-3 4997 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  UC302297  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1926-5-2 7438 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA167197  Microseris lindleyi Joseph P. Tracy 1947-5-10 17676 Humboldt Near Briceland Comment
  POM247189  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain, near McKay Camp 1677 Comment
  HSC58236  Microsteris gracilis Walter Overton 1979-8-1 12394 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC77403  Microsteris gracilis L. P. Janeway 1983-4-16 229 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  SEINET7879020 Image available Mimulus aurantiacus C. C. Harris, S. K. Harris 1936-1 681 Humboldt Open hillside above Carlotta, elevation about 200 feet, Humboldt County, California. 1 Comment
  UC1052478  Mimulus aurantiacus var. aurantiacus H. E. and S. T. Parks June 1951 Humboldt near landing, type locality Trinidad Comment
  HSC37232  Mimulus cardinalis Lon Hall 1975-6-20 404 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  HSC20707  Mimulus dentatus D. E. Anderson 1965-9-5 4074 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC418983  Mimulus dentatus H. E. Parks May 1930 Humboldt above Carlotta; Van Duzen River Comment
  UC582601  Mimulus douglasii Joseph P. Tracy 1925-5-24 7012 Humboldt Kneeland Prairie 762 Comment
  HSC100672  Mimulus microphyllus Carl C. Marshall Apr 1887 387 Humboldt Supply Creek, near Hoopa. Comment
  HSC32564  Mimulus moschatus Thomas W. Nelson 1973-9-3 1119 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA447971  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs. 1524 Comment
  HSC56178  Mimulus primuloides G. L. Clifton 1979-8-1 12086 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS11057  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1932-7-14 10534 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1196780  Mimulus pulsiferae Joseph P. Tracy 1908-6 2828 Humboldt Buck Mountain Northern Coast Ranges (nw slope, along waterway) 1219 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS51477  Minuartia nuttallii subsp. gregaria P. E. Goddard 1906-6 658 Humboldt Lasseck Peak Comment
  UC668117  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1933-7-25 12829 Humboldt Horse Mountain 1432 Comment
  UC1198864  Mitella ovalis Joseph P. Tracy 1906-5-6 2439 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  CAS-BOT-BC433029  Mitella ovalis Doris K. Kildale 1927-6-25 3577 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC59448  Mitella ovalis Kenneth Clark 1979-4-2 23 Humboldt 1/4 mi. E of end of Granite Ave. above Jolly Giant Creek 46 Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  CAS-BOT-BC433067  Mitella trifida J. H. Thomas 1949-6-13 911 A Humboldt Between Le Perron Flat and Whitey's Peak, along trail. East of town of Orleans. 1371 Comment
  HSC55867  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10889 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SD56850  Mitellastra caulescens Darley F. Howe 1963-8-7 3806 Humboldt 23 mi west of west end to 6 Rivers north fork on #299 213 Comment
  UC229833  Mollugo verticillata Joseph P. Tracy 1921-10-16 5972 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  POM61350  Monardella villosa Joseph P. Tracy 1918-7-6 5042 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC577376  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15427 Humboldt Vicinity Garberville 121 Comment
  SEINET4173666 Image available Monardella villosa var. glabella Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide, on Van Duzen River 91 Comment
  SEINET11942541  Montia diffusa H. P. Chandler 1901-1 1271 Humboldt Redwood Belt, North Coast Ranges 152 Comment
  UC659346  Montia diffusa Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2615 Humboldt 1 mi below Dinsmore's (above Van Duzen River) 762 Comment
  CAS-BOT-BC444832  Montia fontana James Payne Smith, Jr. 1976-2-21 8507 Humboldt Tish Tang Campground Comment
  CAS-BOT-BC233769  Montia howellii Joseph P. Tracy 1909-5-2 2956 Humboldt Eureka 60 Comment
  POM163985  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka Comment
  UC183598  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC55167  Montia parvifolia Gilbert Muth 1979-8-1 12160 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC445161  Montia parvifolia Henry M. Pollard 1948-7-24 s.n. Humboldt Along road near Orleans Comment
  HSC77395  Montia parvifolia L. P. Janeway 1983-5-21 301 Humboldt At East Fork USFS campground, W edge of flat canyon bottom 473 Comment
  HSC90235  Morella californica L. Watson, J. Meninga Aug 1990 8 Humboldt Mad River Slough and Dunes, N of parking lot, W of trail, near Manilla Comment
  UC212880  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC91604  Myosotis latifolia E. Mackey 1987-3-18 Humboldt Patrick's Point State Park Comment
  HSC34644  Myosotis sylvatica John Palmer 1975-4-9 295 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  UC502985  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  UC1056359  Nassella lepida J. I. Mallory 1956-4-27 128 Humboldt three mi w Petrolia; Quad 28-B-4, Humboldt base 76 Comment
  RSA10044  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville 122 Comment
  HSC100457  Nasturtium curvisiliqua Carl C. Marshall May 1885 45 Humboldt Peninsula near marsh. Comment
  CAS-BOT-BC60347  Nasturtium officinale Doris K. Kildale 1926-8-12 2484 Humboldt Moonstone Beach near Trinidad. Comment
  UC582688  Navarretia Joseph P. Tracy 1937-7-19 15464 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1198525  Navarretia atractyloides Joseph P. Tracy 1925-7-26 7207 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1222712  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1950-6-25 18898 Humboldt 3 mi s Burr Valley (near the Sprosten Place, on the road to the Albee Place) Comment
  SEINET12279161  Navarretia pubescens J. P. Tracy 1950-1 18861 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  UC1198527  Navarretia squarrosa Joseph P. Tracy 1927-8-7 8328 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC906677  Navarretia squarrosa Joseph P. Tracy 1942-7-18 17282 Humboldt Garberville 152 Comment
  UCD39801  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville. 152 Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 Comment
  UC249522  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC13587  Nemophila menziesii Francis Winter 1960-5-7 Humboldt E end Arbor Camp Ridge 915 Comment
  HSC32387  Nemophila menziesii var. atomaria Linda M. Barker 1974-5-11 183 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  RSA33408  Nemophila menziesii var. atomaria Doris K. Kildale 1929-2-19 4265 Humboldt Little River. Comment
  SBBG6129  Nemophila menziesii var. atomaria H. and M. Dearing 1939-4-24 3424 Humboldt near Dyerville Comment
  UC146182  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC177171  Nemophila menziesii var. atomaria Joseph P. Tracy 1913-5-4 4061 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCR37590  Nemophila menziesii var. atomaria L. P. Janeway 1983-4-16 233 Humboldt Near the old Hwy 299 on W side of Berry Summit 823 Comment
  HSC26339  Nemophila parviflora Thomas W. Nelson 1971-3-30 360 Humboldt Beside Williams Creek near Ferndale Comment
  UC176123  Nemophila pedunculata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3605 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  JEPS1926  Nemophila pedunculata Joseph P. Tracy 1927-3-27 7858 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, nr South Fork Trinity River Valley 182 Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  HSC57344  Noccaea fendleri subsp. glauca Walter Overton, Marvin Butler 1979-7-26 10027 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC41308  Notholithocarpus densiflorus Brad Klipfel 1974-7-23 471 Humboldt Horse Mountain Comment
  HSC68221  Notholithocarpus densiflorus var. densiflorus J. P. Smith, Steve Selva 1970-6-14 3852 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC20656  Nuttallanthus texanus L. H. Myers 1963-4-5 19 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  HSC20658  Nuttallanthus texanus R. T. Forester 1963-4-30 18 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC20655  Nuttallanthus texanus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  JEPS11312  Nuttallanthus texanus Joseph P. Tracy 1918-5-5 4921 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC666832  Oemleria cerasiformis Joseph P. Tracy 1937-6-20 15356 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  UCD127733  Oenanthe pimpinelloides Joseph P. Tracy 1950-6-23 18874 Humboldt Larrabee Creek, 3 miles north of Blocksburg. 457 Comment
  HSC90660  Oenanthe sarmentosa Gail Newton 1982-6-10 3639 Humboldt Elk River Wildlife Area, Eureka Comment
  CHSC70155  Oenothera glazioviana David K. Imper 1983-7-1 Humboldt Eureka. Weedlot on 6th Street. 15 Comment
  UC203990  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  JEPS11667  Orobanche californica subsp. californica Joseph P. Tracy 1918-7-1 4970 Humboldt Cape Mendocino, southwestern slopes, fronting the ocean, three miles south of Point of the Cape. Comment
  CAS-BOT-BC499669  Orobanche californica subsp. californica J. Clausen 1932-9-18 690 Humboldt About 5 mi S of Cape Mendocino Lighthouse Comment
  JEPS12001  Orobanche fasciculata Joseph P. Tracy 1935-7-30 14374 Humboldt Salmon Summit. Comment
  HSC54678  Orthilia secunda Overton, Butler 1979-7-26 9942 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC56315  Orthilia secunda Joseph Burtt Davy Jun 21-23 1899 5751 Humboldt Trinity Summit Comment
  SEINET8733553 Image available Orthocarpus pusillus C. C. Harris, S. K. Harris 1942-1 1283 Humboldt 1 mile north and 3 miles west of Chalk Mountain Comment
  HSC56175  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-8-1 12082 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC56304  Osmorhiza berteroi Overton, Butler 1979-8-2 12611 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  JEPS15910  Osmorhiza berteroi W. L. Jepson 1932-7-26 16419 Humboldt Bull Creek Comment
  HSC53833  Osmorhiza occidentalis Terry Griswold, Butler 1979-7-10 6281 Humboldt Near Board Camp Mountain 1372 Comment
  HSC98819  Osmorhiza occidentalis Cara Witte 2008-7-1 790 Humboldt Forest Service Road 4N32. .5 miles east of intersection with 5N04 and 4N32E. 1508 Comment
  POM174070  Oxalis albicans subsp. pilosa Joseph P. Tracy 1918-11-17 5119 Humboldt Elk River Corners, at Eureka. 0 Comment
  HSC16720  Oxalis articulata subsp. rubra J. E. Lankila 1962-5-6 11 Humboldt About 1/4 mi. N of Price Creek Comment
  RSA245261  Oxalis corniculata R. A. Vanbianchi 1971-11-5 92 Humboldt Humbolt State College campus. SouthWest corner theatre arts building. Comment
  CHSC70834  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road leading into the recreation area. 6 Comment
  HSC27853  Oxalis oregana Clifton Raymond Chesbrough 1973-6-19 59 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC16727  Oxalis oregana Francis Winter 1960-5-7 Humboldt Pine Ridge Summit 686 Comment
  HSC45275  Oxalis oregana Brad Klipfel 1973-4-28 6 Humboldt Along Korbel to Maple Creek County Rd. Comment
  POM186936  Oxalis oregana Marcus E. Jones 1931-7-14 28949 Humboldt South of Eureka Comment
  UC1103420  Oxalis oregana Joseph P. Tracy 1923-5-13 6198 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  HSC55133  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-1 11967 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC96576  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2245 Humboldt Pacific Lumber Co. land, Redwood House Rd., Heley Creek Watershed 320 Comment
  UC34654  Packera bolanderi var. bolanderi Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC13259  Parapholis incurva D. E. Anderson 1965-6-10 3786 Humboldt E part of Eureka. Comment
  UC1103407  Parapholis incurva Joseph P. Tracy 1937-6-5 15328 Humboldt mouth of Little River 3 Comment
  CDA38658  Parentucellia viscosa B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -B Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  UC1222446  Parentucellia viscosa H. E. Parks and Joseph P. Tracy 1932-8-13 10348 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC71156  Paxistima myrsinites Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  JEPS9618  Paxistima myrsinites Joseph P. Tracy 1933-4-30 6042 Humboldt ridge n. of Willow Creek between Willow and Campbell Creeks (Brannan Mt.); Brannan Mt. 914 Comment
  UC169889  Paxistima myrsinites Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5655 Humboldt Hoopa Mt. Comment
  HSC104271  Pedicularis densiflora Samantha E. Andres 2016-3-14 1 Humboldt Along Hwy. 299, ~5 mi. W of Willow Creek 274 Comment
  HSC20924  Pedicularis densiflora D. E. Anderson 1962-5-1 2202 Humboldt 1 mi. W of Hoopa Comment
  UC582556  Pedicularis densiflora Joseph P. Tracy 1937-4-3 15251 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC218627  Pellaea andromedifolia Joseph P. Tracy 1921-5-30 5495 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC72695  Pellaea brachyptera Gail Newton 1980-6-24 595 Humboldt Near Ladder Rock 1570 Comment
  SEINET200794 Image available Pellaea mucronata subsp. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Near summit on rd W from Hoopa to Bair's Hoopa Mt 1067 Comment
  UC2062599  Penstemon anguineus Belinda Lo with Kellie Eldridge 2017-7-12 339 Humboldt HUMBOLDT COUNTY: Shasta-Trinity National Forest, Blake Mountain, near the top of Mill Creek. Comment
  UC1011933  Penstemon anguineus F. W. Pennell and J. P. Tracy 1940-7-7 26092 Humboldt w Salyer (Grouse Mountain); w of Salyer, Grouse Mountain 1371 Comment
  RSA420427  Penstemon newberryi subsp. berryi Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  HSC102096  Penstemon newberryi var. berryi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 999 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1198051  Penstemon newberryi var. berryi Joseph P. Tracy 1941-8-28 17046 Humboldt South Fork Mountain, along summit near Blake lookout Northern Coast Ranges 1706 Comment
  RSA46686  Penstemon purpusii Doris K. Kildale 1937-7-18 15141 Humboldt Horse Mt. Comment
  CAS-BOT-BC71619  Pentagramma triangularis subsp. triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt E side of road, 1 mi. S of Garberville Comment
  UC1197127  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1936-8-17 15152 Humboldt 2 mi s Fields Landing; Northern Coast Region, Region about Humboldt Bay 9 Comment
  UC1197125  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1914-10-11 4636 Humboldt Ricks Prairie Northern Coast Region, Eureka 0 Comment
  JEPS22585  Perideridia gairdneri subsp. gairdneri Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC906670  Perideridia howellii Joseph P. Tracy 1949-8-27 18503 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mt. 609 Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  CAS-BOT-BC413504  Persicaria amphibia Joseph P. Tracy 1934-7-20 13467 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC330378  Petasites frigidus var. palmatus Doris K. Kildale 1926-3-26 1631 Humboldt Old Kneeland Road 609 Comment
  HSC97674  Petasites frigidus var. palmatus Gordon Leppig 1998-3-9 711 Humboldt Arcata, West End Rd., 3 mi. W of Ericson Way 30 Comment
  UCD134920  Petasites frigidus var. palmatus Joseph M. DiTomaso 1976-3-28 359 Humboldt just east of summit on Highway 299, 7 miles west of Willow Creek. 762 Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  HSC91880  Phacelia malvifolia E. Mackey 1987-9-5 Humboldt Patrick's Point State Park, along the trail to the beach Comment
  HSC57193  Phacelia mutabilis Griswold, Butler 1979-7-11 6949 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  JEPS81021  Phacelia nemoralis subsp. oregonensis J. P. Smith and Steve Selva 1970-6-14 3828 Humboldt along CA 96 at Whitmore Creek 152 Comment
  UC562579  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  UC1132414  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  POM259083  Phalaris aquatica J. T. Howell 1937-7-31 13721 Humboldt 4 miles north of Loleta Comment
  UC1152047  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt near Redcrest Englewood Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  UC161489  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is tributary of Trinity River) 304 Comment
  HSC20264  Philadelphus lewisii H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  HSC31124  Phlox adsurgens J. O. Sawyer 1970-6-24 2262 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  CAS-BOT-BC141270  Phoradendron serotinum subsp. tomentosum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC18710  Physocarpus capitatus R. E. Thill 1965-5-16 29 Humboldt 1 mi. E of Hwy. 101 on N Bank Rd. Comment
  HSC72978  Picea breweriana M. A. Baker 1980-7-23 3188 Humboldt Near Orleans Mtn. 1859 Comment
  HSC28257  Picea sitchensis Gary S. Lester 1973-12-2 56 Humboldt E of HSC campus Comment
  UC1219787  Picea sitchensis E. Fritz 1935-8-16 Humboldt Comment
  CAS-BOT-BC73406  Pinus Doris Kildale Gillespie 1931-6-7 10587 Humboldt South Fork Mt., Blake Lookout. 1726 Comment
  HSC1478  Pinus contorta L. H. Myers 1963-5-13 21 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  HSC31517  Pinus contorta Steve Selva, Roger Jensen 1974-8-28 92 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  HSC26813  Pinus jeffreyi J. O. Sawyer 1973-3-12 2477 Humboldt SE of Kerr Peak on Manhart Ranch, Bulk Collection # 44 457 Comment
  HSC1537  Pinus ponderosa Francis Winter 1960-5-7 Humboldt Sugar Pine Mtn. 6 mi. W of Hoopa Indian Reservation 1067 Comment
  UC13527  Piperia elegans Chesnut and Drew 1888-7-10 Humboldt Jarnnigan's Jarnigan's Comment
  RSA722414  Piperia elongata J. R. Bruff 1937-8-17 942 Humboldt Richardson Grove. Comment
  UC1196432  Piperia elongata Joseph P. Tracy 1925-8-9 7224 Humboldt Salmon Creek Northern Coast Ranges, South Fork of Eel River 91 Comment
  HSC98975  Piperia unalascensis Cara Witte 2008-7-7 834 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, Forest Service Roads 6N36 and 6N38. 1415 Comment
  BLMAR587  Piperia unalascensis Jennifer Wheeler 2010-7-13 587 Humboldt King range, along Panther Gap Road 792 Comment
  UC154179  Pityopus californicus Harley P. Chandler June, 1901 1299 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UC175581  Plagiobothrys nothofulvus Mrs. M. H. Manning 1902-4-14 Humboldt near Hupa Comment
  RSA80192  Plagiobothrys reticulatus Alice Eastwood, J. T. Howell 1937-6-23 4811 Humboldt Little Van Duzen River. Comment
  UC1222212  Plagiobothrys reticulatus Joseph P. Tracy 1951-6-24 19536 Humboldt Kneeland Prairie 762 Comment
  UC184998  Plagiobothrys reticulatus Joseph P. Tracy 1904-7-4 2111 Humboldt at Eureka; Northern Coast Region, Eureka 0 Comment
  UC582614  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-9 14905 Humboldt Upper Mattole Valley 121 Comment
  UCD120864  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  JEPS60995  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges 91 Comment
  UC1222208  Plagiobothrys scouleri Joseph P. Tracy 1948-6-13 18032 Humboldt between Bridgeville and Blocksburg (on Larrabee Creek road) Comment
  JEPS68131  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Redwood Creek, at Berry's Northern Coast Ranges 274 Comment
  UC1222194  Plagiobothrys trachycarpus Joseph P. Tracy 1942-5-16 17355 Humboldt 1 mi ne Garberville 304 Comment
  RSA246719  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-7 35173 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  UC1125641  Plantago lanceolata H. L. Person 1932-7-16 Humboldt n of Trinidad (highway); Rock Point Quad. Comment
Read comments
Aug 3 2007
  HSC79355  Plantago lanceolata Kenneth Clark 1980-5-10 648 Humboldt Above western beach, Point Delgada, Shelter Cove areas 6 Comment
  HSC79455  Plantago lanceolata Kenneth Clark 1980-4-18 603 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  HSC98671  Plantago lanceolata Cara Witte 2008-7-10 855 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 4N38 and Brays Opening. 1326 Comment
  UC1196133  Plantago subnuda J. P. Tracy 1901-6-30 1212 Humboldt immediate vicinity Eureka 0 Comment
  UC585995  Plantago subnuda Joseph P. Tracy 1933-6-6 12499 Humboldt Trinidad 3 Comment
  POM319565  Platanthera Patricia Wilder 1968-8-21 4391 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC55213  Platanthera dilatata var. leucostachys Walter Overton 1979-8-1 12369 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UCR37808  Platanthera dilatata var. leucostachys T. Jimerson, J. Pageau 1979-10-8 727 Humboldt Near Tish Tang A Tang Ridge close to the town of Hoopa Comment
  HSC28079  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-7-4 93 Humboldt E boundary of Hoopa Indian Reservation, Big Hill Rd. Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC64194  Platanthera sparsiflora J. O. Sawyer, M. A. Ericksen 1979-6-23 3374 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  CAS-BOT-BC91633  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-23 4807 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC91639  Platystemon californicus Tom Craig 1941-6-29 s.n. Humboldt Samoa, near Eureka. Comment
  HSC90238  Platystemon californicus Louise Watson, Jan Meninga Mar 1991 14 Humboldt Near Manilla, Mad River Slough and Dunes, NW edge of parking lot Comment
  JEPS587  Platystemon californicus Lincoln Constance 1934-6-19 913 Humboldt near summit Grasshopper Peak (Bull Creek Region); South Fork Eel River, , Grasshopper Peak 914 Comment
  HSC16789  Platystemon californicus J. P. Tracy 1904-4-24 2020 Humboldt Humboldt Bay Comment
  UC169026  Plectritis brachystemon J. P. Tracy 1908-7-9 2833 Humboldt Buck Mountain 1219 Comment
  UC1239586  Plectritis congesta Harley P. Chandler May, 1901 1149 B Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1239574  Plectritis congesta Joseph P. Tracy 1916-4-30 4680 Humboldt Northern Coast Ranges, around Humboldt Bay, Salmon Creek Valley Salmon Creek Valley; Northern Coast Ranges, Salmon Creek Valley 60 Comment
  HSC98654  Plectritis congesta subsp. brachystemon Cara Witte 2007-7-3 413 Humboldt Along National Forest 1. Approximately 1 mile south of White Oak Opening. 1364 Comment
  HSC44410  Plectritis macrocera R. York 1978-5-6 162 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  CAS-BOT-BC458165  Pleuricospora fimbriolata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  RSA255770  Pleuricospora fimbriolata Gary D. Wallace 1973-6-18 1235 Humboldt Prairie Creek Redwoods St. Pk. north of Orick. Comment
  UC249503  Pleuropogon refractus Joseph P. Tracy 1922-6-18 6095 Humboldt head of Middle Yager Creek; Northern Coast Ranges, Middle Yager Creek 762 Comment
  SEINET255064 Image available Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp Comment
  UC1103798  Poa bolanderi Joseph P. Tracy 1947-6-26 17742 Humboldt forest near McKay camp (South Fork Mt); South Fork Mt 1676 Comment
  HSC46977  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC34125  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5516 Humboldt near Pepperwood Pepperwood Comment
  UC576260  Poa howellii H. S. Yates 1936-6-16 5683 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  UCSC000061  Poa howellii H. S. Yates 1936-6-17 5709 Humboldt Lower NW slope of Buck Mtn. - South Fork Pk. 792 Comment
  SEINET200574 Image available Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt Along Little River, 5 miles from the coast. 122 Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  UC1256295  Poa secunda subsp. secunda R. K. Gierisch and D. H. Esplin 1969-7-1 3537 Humboldt Grouse Mt; Six Rivers Forest/Experimental Area Comment
  UC525665  Poa secunda subsp. secunda Joseph P. Tracy 1926-6-20 7613 Humboldt Horse Mt; Northern Coast Ranges 1524 Comment
  UC525668  Poa secunda subsp. secunda Joseph P. Tracy 1926-5-9 7469 Humboldt valley s of Yager Creek 762 Comment
  HSC102948  Poa trivialis J. P. Smith Jun 2009 12601 Humboldt Arcata. Lawn weed Comment
  HSC10812  Poa unilateralis R. D. Rogers 1964-4-16 5 Humboldt Patricks Point State Park. Comment
  UCD92123  Poa unilateralis A. A. Beetle 1940-5-19 3612 Humboldt near H.E. Parks Reservoir, California coast. Comment
  UC1222708  Polemonium carneum Joseph P. Tracy 1950-6-8 18736 Humboldt Bear River Ridge 609 Comment
  UC275330  Polygala californica Joseph P. Tracy 1923-6-20 6334 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  HSC67530  Polygala cornuta J. P. Smith, Steve Selva 1970-6-14 3841 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  CAS-BOT-BC110515  Polygonum Malcom A. Nobs; S. Galen Smith 1949-8-9 1232 Humboldt On southern side of the town of Blue Lake. Comment
  UC672945  Polygonum amphibium Joseph P. Tracy 1934-7-20 13468 Humboldt Big Lagoon 3 Comment
  UC672975  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-15 16754 Humboldt Willow Creek Canyon, along Trinity Highway 792 Comment
  SEINET3405098 Image available Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt Trinity River Valley, Near Willow Creek 152 Comment
  HSC100602  Polygonum convolvulus Carl C. Marshall Sep 1886 246 Humboldt Fields near Arcata. Comment
  HSC55160  Polygonum douglasii Gilbert Muth 1979-8-1 12122 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  CAS-BOT-BC414718  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC109180  Polygonum paronychia Joseph P. Tracy 1911-5-30 3200 Humboldt Region about Humboldt Bay. At Bucksport. 152 Comment
  HSC103974  Polygonum paronychia C. Reynolds 2015-3-16 19 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  RSA191950  Polygonum paronychia Robert F. Thorne 1957-9-3 19013 Humboldt Little River Beach, few miles S of Trinidad. Comment
  CAS-BOT-BC109184  Polygonum paronychia E. A. McGregor 1921-8-25 s.n. Humboldt Requa and vicinity. Sand bar extending southward from mouth of Klamath River. Comment
  UC72026  Polygonum persicaria Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC672978  Polygonum phytolaccifolium Joseph P. Tracy 1936-7-7 16035 Humboldt Grouse Mountain 1524 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  CAS-BOT-BC421007  Polygonum spergulariiforme H. E. Parks; J. P. Tracy 1930-9-15 0767 Humboldt Bald Hills, Kneeland Comment
  HSC53800  Polygonum spergulariiforme Griswold, Butler 1979-7-10 6221 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  CAS-BOT-BC421010  Polygonum spergulariiforme Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  RSA53825  Polygonum spergulariiforme H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  SEINET3404070 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  RSA244982  Polypodium calirhiza D. A. Haskell 1966-4-16 13 Humboldt Coastal strand sand dunes near town of Samoa Comment
  CAS-BOT-BC76875  Polypodium glycyrrhiza M. S. Jussel 1931-5-2 94 Humboldt Sylvandale, 8 miles N of Garverville. Comment
  SBBG34260  Polypodium scouleri M. Cady 1937-12-28 Humboldt Trinidad Comment
  SEINET200797 Image available Polypodium scouleri Frank C. Gregory 1923-8-4 Humboldt Eureka 61 Comment
  UC906716  Polypodium scouleri Joseph P. Tracy 1942-7-26 17291 Humboldt headwater of Grizzly Creek (Redwood House road) 609 Comment
  JEPS82390  Polypogon interruptus A. S. Hitchcock 1915-7-13 839 Humboldt Eureka Comment
  UC39737  Polypogon interruptus Harley P. Chandler June, 1901 1332 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  HSC101540  Polypogon monspeliensis J. P. Smith 2010-5-29 12889 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  HSC62871  Polypogon monspeliensis J. M. DiTomaso 1979-4-21 887 Humboldt Clam Beach. Comment
  HSC65444  Polypogon monspeliensis J. P. Smith 1973-5-26 6813 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET200577 Image available Polypogon monspeliensis Joseph P. Tracy 1916-5-31 4692 Humboldt Holmes Flat along Eel River from South Fork to Scotia. 61 Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  HSC70749  Polystichum imbricans R. York 1980-5-17 534 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC76763  Polystichum imbricans subsp. imbricans L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC98978  Polystichum imbricans subsp. imbricans Cara Witte 2007-5-23 96 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  CHSC31316  Polystichum munitum Mark Stopher 1980-6-4 86 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  CAS-BOT-BC76662  Polystichum munitum Ira L. Wiggins 1932-6-18 5871 Humboldt On hillside at mouth of Little River. Comment
  UC249777  Polystichum munitum Joseph P. Tracy 1924-8-10 6803 Humboldt near Strongs Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  HSC66076  Polystichum scopulinum M. S. Taylor, J. D. Jokerst, L. Ahart 1980-2-8 3214 Humboldt Humboldt Peak, N outcrop on the top 2155 Comment
  HSC45347  Potamogeton natans R. York 1978-4-8 125 Humboldt Between Arcata and Eureka along Hwy. 101 0 Comment
  UCD113692  Potentilla anserina subsp. pacifica Linda M. Barker 1976-6-1 1556 Humboldt 3 miles west of Arcata. Comment
  HSC102125  Potentilla drummondii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1029 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC158491  Potentilla gracilis var. gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4849 Humboldt Kneeland Comment
  HSC15464  Prosartes hookeri D. E. Anderson 1965-5-15 3691 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC75750  Prosartes smithii Bill Copeland 1980-7-2 354 Humboldt Near Snow Camp Mtn. 1311 Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  HSC14303  Prunella vulgaris subsp. lanceolata William J. Ferlatte, B. D. Rodgers 1966-6-7 2083 Humboldt 1 mi. E of Forest Glen 732 Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 Comment
  UC577391  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  RSA430228  Prunella vulgaris var. lanceolata G. F. Orr 1963-8-15 s.n. Humboldt Patrick Point State Park, near Trinidad Comment
  UC1196732  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-22 13487 Humboldt at crossing of Iaqua-Bridgeville road North Yager Creek 396 Comment
  UC1321006  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 627 Humboldt Eagle Point on Eel River (s of Meyer's Flat) Comment
  UC577392  Prunella vulgaris var. vulgaris Joseph P. Tracy 1934-7-14 13403 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  CAS-BOT-BC159981  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  HSC72696  Prunus emarginata Gail Newton 1980-6-24 590 Humboldt Near Ladder Rock 1570 Comment
  CAS-BOT-BC154737  Prunus virginiana var. demissa H. E. McMinn 1922-8-5 356 Humboldt Along Van [Dusen] Duzen River Comment
  CAS-BOT-BC356655  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 121 Comment
  CAS-BOT-BC357601  Pseudognaphalium stramineum John Thomas Howell 1936-8-29 12886 Humboldt Eel River 16 miles n. of Garberville Comment
  BLMAR148  Pseudotsuga menziesii Donald Hazlett 1994-6-9 148 Humboldt King range, E-facing slope off hourse mountain ridge 609 Comment
  HSC36260  Pteridium aquilinum var. pubescens John Rehling 1974-8-19 20 Humboldt Comment
  HSC100917  Pteris aquilina Carl C. Marshall Jun 1887 480 Humboldt Everywhere. Comment
  CAS-BOT-BC460505  Pterospora andromedea Doris K. Kildale 1927-7-23 3794 Humboldt Hoaglin Lake, near Lasseck's Peaks 1524 Comment
  UC1197761  Pterospora andromedea Joseph P. Tracy 1947-7-9 17857 Humboldt Horse Mt. 1432 Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  SBBG59887  Pyrola asarifolia S. W. Hutchinson -Jun-1927 317 Humboldt Redwood Hwy 304 Comment
  HSC45427  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-6-19 3502 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC41260  Pyrola dentata Brad Klipfel 1974-7-23 452 Humboldt Horse Mtn., N of the towers Comment
  UC412726  Pyrola picta P. E. Goddard Jun 1 1906-Jul 1 1906 687 Humboldt Blocksburg Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 Comment
  UC1197568  Pyrola picta Joseph P. Tracy 1908-7-30 2777 Humboldt Northwest slope pf Buck Mountain 914 Comment
  CAS-BOT-BC62630  Quercus chrysolepis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC35601  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2012 Humboldt French Camp, Bald Hills. Comment
  HSC40045  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2899 Humboldt Ridge N of Bear Creek 1494 Comment
  HSC41267  Quercus chrysolepis Brad Klipfel 1974-7-23 461 Humboldt Horse Mtn. Comment
  CAS-BOT-BC94310  Quercus garryana Joseph P. Tracy 1941-3-26 16845 Humboldt South Fork of Trinity River: mountain slopes W of its mouth Comment
  UC249563  Quercus garryana Joseph P. Tracy 1922-4-30 6008 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC535734  Quercus garryana Eleanor Armstrong 1934-6-15 1132 Humboldt Richardson Grove 121 Comment
  OBI36116  Quercus garryana var. garryana David J. Keil 1983-7-1 17265 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  RSA53125  Quercus garryana var. garryana Roxana S. Ferris 1955-7-11 12973 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  UCD46155  Quercus garryana var. garryana W. L. Colwell 1957-9-4 53 Humboldt Near Board Camp Mountain, 18 miles southeast of Korbal, near Six Rivers National Forest, Humboldt County. 1371 Comment
  CAS-BOT-BC105161  Quercus kelloggii Doris K. Kildale 1926-4-11 1759 Humboldt Bridgeville 228 Comment
  OBI36667  Quercus kelloggii David J. Keil 1983-7-2 17342 Humboldt 2.8 mi S of SR 299 along titlow HIll rd, SW of Willow Creek Comment
  UC502988  Quercus kelloggii Joseph P. Tracy 1928-9-30 8510 Humboldt near Bridgeville; Northern Coast Ranges 304 Comment
  HSC75961  Quercus sadleriana Overton, Butler 1979-8-2 12593 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  OBI14233  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New road towards Trinity summit 1676 Comment
  UC1196513  Quercus sadleriana Joseph P. Tracy 1932-7-15 10579 Humboldt near Corral Prairie; Klamath Mountains 1524 Comment
  HSC76361  Quercus vacciniifolia Denis Kearns 1981-7-6 54 Humboldt Near Mosquito Lake 1122 Comment
  OBI36118  Quercus vacciniifolia David J. Keil 1983-7-2 17324 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mountain Summit rd Comment
  SBBG111333  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  UCR32169  Quercus vacciniifolia David J. Keil 1983-7-2 17324 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  POM118706  Ranunculus californicus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  BLMAR364  Ranunculus californicus Jennifer Anthony-Wheeler 2003-5-21 364 Humboldt South Spit, Disturbed ground on west side 3 Comment
  UC503024  Ranunculus californicus Joseph P. Tracy 1932-5-10 9965 Humboldt Mattole River North Coast Region, Mattole River 15 Comment
  HSC18134  Ranunculus californicus var. californicus R. J. Vernimen 1963-5-11 56 Humboldt 0.5 mi. off Samoa Rd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  HSC26468  Ranunculus californicus var. cuneatus T. O. Osborne 1970-4-8 7 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  UC180239  Ranunculus flammula Joseph P. Tracy 1914-9-6 4614 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC100618  Ranunculus flammula var. reptans Carl C. Marshall May 1886 200 Humboldt Damp places. Comment
  HSC26638  Ranunculus lobbii Thomas W. Nelson 1971-5-31 447 Humboldt Vernal pond Comment
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  HSC18150  Ranunculus muricatus D. E. Anderson 1963-5-25 2474 Humboldt 10 mi. S of Ferndale on Wildcat Grade Comment
  UC1196232  Ranunculus occidentalis Joseph P. Tracy 1934-6-27 13263 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 Comment
  HSC97644  Ranunculus occidentalis var. occidentalis C. Witte 2007-5-8 12 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  SDSU10122  Ranunculus repens D. F. Howe 1962-5-22 3306 Humboldt Orick. 30 Comment
  HSC29783  Ranunculus repens var. repens Thomas W. Nelson 1970-6-11 602 Humboldt Adjacent to 4244 Fairway Dr., Eureka Comment
  JEPS55000  Ranunculus uncinatus Joseph P. Tracy 1916-5-7 4687 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC162816  Ranunculus uncinatus J. P. Tracy 1910-5-8 3133 Humboldt Immediate vicinity of Eureka 0 Comment
  POM118711  Ranunculus uncinatus var. parviflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC249596  Rhamnus californica subsp. californica Joseph P. Tracy 1921-10-2 5963 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197984  Rhamnus purshiana J. P. Tracy 1901-8-11 1276 Humboldt immediate vicinity Eureka 0 Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC199061  Rhamnus purshiana Chesnut and Drew Jul 1888 Humboldt Jarnigan's Comment
  UC55738  Rhamnus purshiana J. Burtt Davy 1899-6-18 5609 Humboldt near Korbel (lower slopes of Bald Mt.); North Coast Ranges, Bald Mt. Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  CAS-BOT-BC56608  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt in the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  JEPS58777  Rhododendron macrophyllum Mr. and Mrs. Geo. B. Parrish 1930-5-21 Humboldt Trinidad Comment
  SBBG5560  Rhododendron occidentale H. and M. Dearing 1933-5-17 1244 Humboldt N of Big Lagoon Comment
  CDA21469  Rhododendron occidentale var. paludosum G. F. Hrusa, T. D. Wilfred 1992-5-5 9374 Humboldt North Coast Ranges; Mckinleyville Azalea Reserve. 30 Comment
  UC667066  Ribes binominatum Joseph P. Tracy 1933-8-30 13058 Humboldt on e slope Grouse Mountain (near lookout station) 1615 Comment
  CAS-BOT-BC108908  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-14 1532 Humboldt Blue Slide - on Van Duzen River. Comment
  HSC56148  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11990 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC97310  Ribes laxiflorum M. Mesler 2007-5-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along the creek near the beach. 23 Comment
  UC11582  Ribes laxiflorum Harley P. Chandler May, 1901 1202 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC173365  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whitey's Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  UC70550  Ribes lobbii J. Burtt Davy 1899-6-23 5840 Humboldt Trinity Summit North Coast Ranges 1981 Comment
  HSC103132  Ribes lobbii M. Mesler 2009-9-7 816 Humboldt Trail to Mill Creek Lakes, above Hoopa 1646 Comment
  HSC37446  Ribes marshallii Linda M. Barker, J. O. Sawyer, Jane Sawyer, D. A. Thornburgh 1976-7-3 1631 Humboldt North Trinity Mountain Summit 1940 Comment
  HSC97215  Ribes marshallii M. Mesler 2007-6-25 765 Humboldt Trail to Mill Creek Lakes 1585 Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  HSC53912  Ribes nevadense Griswold, Butler 1979-7-11 6922 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UC1222372  Ribes roezlii Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge Comment
  UC1198949  Ribes roezlii var. amictum Joseph P. Tracy 1922-4-2 5985 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 60 Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  SBBG27512  Ribes sanguineum L. Constance, R. C. Rollins 1942-5-11 Humboldt near summit 8 mi E of Blue Lake Comment
  UC1563694  Ribes sanguineum Barbara Ertter with Thomas J. Delendick 1987-5-16 6939 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  CAS-BOT-BC144686  Ribes sanguineum var. glutinosum Lincoln Constance; Reed Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake Comment
  HSC100719  Ribes viscosissimum Carl C. Marshall Jun 1886 325 Humboldt Trinity Summit. Comment
  HSC12721  Romanzoffia californica C. E. Fellows 1970-5-1 264 Humboldt 11 mi. W of Willow Creek, S side of Hwy. 299 Comment
  UCD120747  Romanzoffia californica R. Raynor 1935-4-8 s.n. Humboldt Ft. Seward. Comment
  CAS-BOT-BC74506  Rorippa curvisiliqua Doris K. Kildale 1926-7-18 2391 Humboldt Orick. Comment
  UC1199220  Rorippa curvisiliqua Joseph P. Tracy 1933-8-30 13054 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC1222650  Rorippa curvisiliqua Joseph P. Tracy 1950-7-6 19021 Humboldt 3 mi s Burr Valley (high meadow on w side Buck Mountain, Valley on the Albee Road); high meadow on w side Buck Mountain, s Burr Valley 1158 Comment
  HSC99055  Rorippa palustris subsp. occidentalis Cara Witte 2008-6-18 740 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  JEPS47283  Rosa eglanteria W. L. Jepson 1936-8-18 17947 Humboldt 1/2 mi nw Petrolia (along a gully in the village) Comment
  POM275419  Rosa gymnocarpa Lyman D. Benson 1928-7-12 489 Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1927277  Rosa luciae Barbara Ertter with Tom Nelson and Dick Brummitt 2004-7-2 18404 Humboldt Eureka, at edge of 14th Street where road crosses large drainage (opposite 1404 14th St.) Comment
  CAS-BOT-BC146837  Rosa nutkana Doris K. Kildale 1927-5-14 3202 Humboldt Big Lagoon Comment
  SBBG3090  Rosa nutkana M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC588191  Rosa nutkana var. nutkana H. E. and S. T. Parks June, 1937 24021 Humboldt Spruce Cove Trinidad Comment
  SEINET11912081  Rosa pinetorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -312 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road 150 Comment
  CAS-BOT-BC148340  Rosa pisocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4763 Humboldt Dinsmore's Comment
  CAS-BOT-BC148344  Rosa pisocarpa Joseph P. Tracy 1949-8-7 18436 Humboldt Trinity Summit, near Box Camp in open fir timber. 1524 Comment
  CAS-BOT-BC148348  Rosa pisocarpa Doris K. Kildale 1931-6-6 10858 Humboldt Gans Prairie, Orick-Whitepec Road Comment
  HSC60308  Rubus armeniacus J. P. Smith, Steve Selva 1970-6-14 3850 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  JEPS44732  Rubus lasiococcus Joseph P. Tracy 1932-7-16 10640 Humboldt in fir woods near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  CAS-BOT-BC148387  Rubus leucodermis W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  RSA89563  Rubus leucodermis Philip A. Munz 1954-7-23 19862 Humboldt About 6 miles E of Dinsmore's. 762 Comment
  HSC19663  Rubus parviflorus A. E. Inman 1962-5-25 Humboldt Mad River, S bank; 100 yards west of Hwy. 299 bridge Comment
  HSC95871  Rubus parviflorus Will Ferrand 2001-6-17 16 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  NY1043365  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  CAS-BOT-BC147360  Rubus pensilvanicus Henry M. Pollard 1948-8-9 s.n. Humboldt Near Orleans Comment
  CDA26338  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  HSC19695  Rubus ursinus W. R. Brigham 1962-5-3 26 Humboldt Side of old Hwy. 101 N of Big Lagoon Rd. Comment
  HSC19698  Rubus ursinus T. M. Mingo May 1965 Humboldt W edge of Big Lagoon Bog Comment
  HSC32429  Rubus ursinus Linda M. Barker 1974-5-11 173 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  JEPS47291  Rubus ursinus W. L. Jepson 1932-8-8 16528 Humboldt near Weatt; near Weatt 304 Comment
  UC1199052  Rubus ursinus Joseph P. Tracy 1935-5-25 13827 Humboldt along headwaters Larrabee Creek (Blocksburg); along headwaters of Larrabee Creek 457 Comment
  UCD113990  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt 3 miles west of Arcata. Comment
  UCD17624  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 040 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  UCD89723  Rubus ursinus Lindsay Clark 2008-6-23 KRC 2 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 551 Comment
  SEINET3111192  Rubus vitifolius Steve Selva, Roger Jensen 1974-8-28 90 Humboldt Approx 10 mi S of Arcata on the sand dunes of the Samoa Peninsula. Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC17585  Rumex acetosella P. W. Shields 1955-6-10 Humboldt HSC campus Comment
  HSC48763  Rumex acetosella Brad Klipfel 1973-6-10 99 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC421935  Rumex acetosella Doris K. Kildale 1927-6-25 3576 Humboldt Fearriens Ranch between Thorn & Shelter Cove. Comment
  HSC44539  Rumex acetosella Brad Klipfel 1973-7-15 155 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC672928  Rumex conglomeratus Joseph P. Tracy 1935-7-17 14097 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  HSC60366  Rumex crispus Terry Roth 1979-5-26 87 Humboldt Near jct. of Sunset Ave. and H St., Arcata Comment
  HSC31482  Rumex salicifolius R. F. Thorne, P. Everett 1965-8-9 35311 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC434098  Rumex transitorius Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC454158  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  HSC100868  Rytidosperma penicillatum J. P. Smith Sep 2005 12151 Humboldt Trinidad Head. 61 Comment
  POM151674  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  CAS-BOT-BC445640  Sagittaria cuneata Henry M. Pollard 1946-8-16 s.n. Humboldt Pond near Harley place, Orleans region Comment
  HSC4507  Salicornia depressa Norman H. Moe 1962-5-19 Humboldt Lanphere's Place, next to Mad River Slough Comment
  CAS-BOT-BC129895  Salix bonplandiana Joseph P. Tracy 1933-6-9 12528 Humboldt Along Eel River - Northern Coast Ranges 30 Comment
  CAS-BOT-BC103816  Salix exigua M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  HSC19945  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1330 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  HSC19946  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1332 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  CAS-BOT-BC104102  Salix hindsiana Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC104113  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107710  Salix hookeriana L. R. Abrams 1916-7-18 6127 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC107714  Salix hookeriana Doris K. Kildale 1926-3-20 1557 Humboldt Big Lagoon, along coast Comment
  CAS-BOT-BC107743  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Bank of Eel River - Fortuna 15 Comment
  CAS-BOT-BC107765  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1212 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9559  Salix hookeriana E. L. Smith 1971-4-7 929 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC6821  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Along lower Eel River, near Fortuna Comment
  HSC90437  Salix hookeriana Jean Hanson 1980-3-8 15 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96357  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS12963  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  LA208757  Salix hookeriana Harold E. Parks; 1931-5-28 999 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM219565  Salix hookeriana H. E. Parks 1931-3-24 915 -a Humboldt Trinidad. 90 Comment
  POM362590  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon. 0 Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1196678  Salix hookeriana Joseph P. Tracy 1925-11-15 7316 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay (same region as #6929) 60 Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC275495  Salix hookeriana Joseph P. Tracy 1925-11-1 7303 Humboldt Shiveley Northern Coast Ranges, Shiveley 60 Comment
  UC275496  Salix hookeriana Joseph P. Tracy 1925-10-11 7279 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Rd.); Northern Coast Ranges 609 Comment
  UC275498  Salix hookeriana Joseph P. Tracy 1925-10-11 7280 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Rd.); Northern Coast Ranges 609 Comment
  UC469110  Salix hookeriana Joseph P. Tracy 1931-8-23 9618 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469117  Salix hookeriana Joseph P. Tracy 1927-4-23 7923 Humboldt Little River Northern Coast Ranges (mouth, edge of sand dunes) 6 Comment
  UC481269  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481396  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC481398  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC490475  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10342 Humboldt vicinity of Trinidad; Northern Coast Region 60 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC504062  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 8 Humboldt Samoa Comment
  UC506346  Salix hookeriana Joseph P. Tracy 1933-3-19 10925 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC512105  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC526715  Salix hookeriana Joseph P. Tracy 1934-6-28 13267 Humboldt Salmon Creek Valley around Humboldt Bay Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley 9 Comment
  HSC75962  Salix jepsonii Overton, Butler 1979-8-2 12592 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA5692  Salix laevigata H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC512108  Salix lasiandra subsp. lasiandra Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1206 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  CAS-BOT-BC125216  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1120 Humboldt Cranell 3 Comment
  CAS-BOT-BC107595  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11005 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  CAS-BOT-BC107600  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107604  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107608  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1323 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107617  Salix lasiolepis Harold E. Parks 1931-9-26 9696 Humboldt Redwood Creek, at Berry's 274 Comment
  JEPS13081  Salix lasiolepis Joseph P. Tracy 1939-8-5 16392 Humboldt Van Duzen River at Dinsmore's 737 Comment
  UC1196612  Salix lasiolepis Joseph P. Tracy 1926-8-12 7759 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1222297  Salix lasiolepis Joseph P. Tracy 1950-7-25 19049 Humboldt along Van Duzen R. opposite Buck Mt.; Van Duzen R. 762 Comment
  UC469435  Salix lasiolepis Joseph P. Tracy 1931-10-11 9718 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC469438  Salix lasiolepis Joseph P. Tracy 1931-11-8 9747 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481337  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490483  Salix lasiolepis Joseph P. Tracy 1932-9-5 10775 Humboldt upper Mattole Valley Northern Coast Ranges, upper Mattole Valley 152 Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC506392  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC511984  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1249 Humboldt in ... floodplain of Eel River at Fernbridge; Eel R., Fernbridge Comment
  UC512033  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1326 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC526716  Salix lasiolepis Joseph P. Tracy 1934-3-11 13146 Humboldt Weitchpec Northern Coast Ranges, Klamath River 91 Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107413  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-7 1527 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  RSA178543  Salix lasiolepis var. sandbergii Joseph P. Tracy 1950-4-20 18623 Humboldt Van Duzen River. 10 miles SE of Dinsmore's. About 4 miles SE of Kuntz. Comment
  SBBG57833  Salix lucida subsp. lasiandra H. E. Parks 1931-3-14 959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125615  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC125631  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0974 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  JEPS12953  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole River near Petrolia; Northern Coast Region 15 Comment
  JEPS14848  Salix melanopsis Lincoln Constance 1934-5-27 688 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  JEPS38370  Salix melanopsis W. L. Jepson 1902-6 2121 Humboldt Supply Creek Hupa Valley 243 Comment
  POM219538  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge. Trinidad. 75 Comment
  SD920  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville, river bed 299 Comment
  SJSU193  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  SJSU251  Salix melanopsis H. E. Parks & J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Cr at Trinity R 152 Comment
  UC481297  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481342  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC519379  Salix melanopsis Joseph P. Tracy 1933-5-20 12260 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  POM92416  Salix melanopsis L. R. Abrams 1922-6-25 8227 Humboldt 6 miles N of Garberville Comment
  RSA5651  Salix melanopsis var. tenerrima H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC129201  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, appraximately at sea level. Comment
  CAS-BOT-BC129129  Salix scouleriana Harold E. Parks 1933-1-1 1341 Humboldt Spruce Cove, Highway 101, Trinidad 64 Comment
  CAS-BOT-BC129167  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1228 Humboldt Near the coast, 1 mile north of Samoa, approximately at sea level. Comment
  HSC20075  Salix scouleriana J. P. Tracy 1932-7-17 10694 Humboldt Klamath Mtns., Trinity summit, Head of Devil's Hole 1829 Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  UC1193085  Salix scouleriana G. W. Tourtillott 1950-8-30 29 Humboldt 1/4 mi. e. Belae Ranch; Quad. 29C4 457 Comment
  UC1196695  Salix scouleriana Joseph P. Tracy 1924-11-16 6921 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1196697  Salix scouleriana Joseph P. Tracy 1923-1-7 6135 Humboldt near Ferndale Ferndale; Northern Coast Ranges 15 Comment
  UC1196709  Salix scouleriana Joseph P. Tracy 1936-2-2 14765 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC481354  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  CAS-BOT-BC128962  Salix sitchensis W. J. Ferlatte 1967-6-13 1116 Humboldt Coastal strand, dunes, Samoa Peninsula 3 Comment
  HSC38186  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3288 Humboldt Eureka, E side of F St., 3800 block Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  UC1222295  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt along coast rd. 1 mi. inland from Cape Mendocino (1/2 mi. s. of town); Foothills of Cape Ridge 60 Comment
  UC1356339  Salix sitchensis Theodore J. Crovello 1964-6-24 579 Humboldt 2.5 mi. s. of turnoff from U.S. 101 to Prairie Creek Redwood State Park (along Lost Man Creek 100 yds. w. of junction with U.S. 101); Lost Man Creek Comment
  UC176185  Salix sitchensis Joseph P. Tracy 1913-3-9 4013 Humboldt Van Duzen R. near Hydesville; Northern Coast Region, Van Duzen R. 60 Comment
  UC469469  Salix sitchensis Joseph P. Tracy 1931-10-3 9708 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490492  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1196608  Salix tracyi Joseph P. Tracy 1926-8-12 7761 Humboldt Redwood Creek, at Berry's 274 Comment
  CDA5800  Salpichroa origanifolia J. Sievert 1981-9-24 s.n. Humboldt Elk River Road, 0.1 mile east of junction with Ridgewood Drive behind Wonnacott Kennels, 6101 Elk River Road. 0 Comment
  HSC58321  Sambucus nigra subsp. caerulea Overton, Butler 1979-8-2 12616 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  UCD137263  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt Camp Grant, near junction of South Fork and main Eel River. 60 Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC68605  Sanicula crassicaulis Jacqueline Greenleaf 1980-8-5 282 Humboldt Near Dairy Creek. 1158 Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  UCD127966  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  BLMAR128  Sanicula crassicaulis Jennifer Anthony-Wheeler 1996-4-3 128 Humboldt Richardson ' s grv., growing along rdside in doug-fir forest 518 Comment
  HSC21636  Sanicula crassicaulis D. E. Anderson 1962-5-1 2193 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UC1197096  Sanicula crassicaulis Joseph P. Tracy 1925-3-29 6949 Humboldt Northern Coast Ranges, Miranda, South Fork Eel River South Fork Eel River; Northern Coast Ranges, Miranda, South Fork Eel River 91 Comment
  HSC55720  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10168 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC314594  Sanicula graveolens Joseph P. Tracy 1926-6-20 7648 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  UC642273  Sanicula graveolens Joseph P. Tracy 1932-7-12 10465 Humboldt Trinity Summit, Head of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  CDA20173  Sanicula tuberosa P. Haggard 2003-6-24 PDR 069700 Humboldt Northwestern California; Grouse Mountain. 0 Comment
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  UC195430  Saponaria officinalis Frank C. Gregory 1915-8-30 Humboldt Klamath River near Ah Pah Creek; Northern Coast Ranges, Klamath River at Ah Pah Creek 30 Comment
  UC412776  Sarcodes sanguinea P. E. Goddard 1906-6 681 Humboldt ridge near <Lassick> Peak Comment
  SEINET3411481 Image available Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt Mouth of South Fork of Trinity river 152 Comment
  UC1100781  Scirpus cernuus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1174 Humboldt salt marshes around Fields Landing; around Fields Landing Comment
  SEINET4170940  Scirpus microcarpus Unknown 1914-9-13 4628 Humboldt At Eureka, Northern Coast Region 61 Comment
  RSA0009468  Scirpus microcarpus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC668016  Scirpus pungens Joseph P. Tracy 1930-10-19 9227 Humboldt along Eel River Alton to Fortuna (on gravel bar); Eel River 15 Comment
  UC1197793  Scoliopus bigelovii Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1222533  Scoliopus bigelovii Joseph P. Tracy 1950-4-20 18611 Humboldt 1 mi. w. Dinsmore's (along Van Duzen R., opposite Buck Mt.); Van Duzen R. 762 Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  UC1011942  Scrophularia californica Francis W. Pennell 1949-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel river, Rte 101) 30 Comment
  HSC14396  Scutellaria antirrhinoides H. E. Parks, J. P. Tracy 1934-6-27 11061 Humboldt Grouse Mtn. 1433 Comment
  UC1239698  Scutellaria tuberosa Joseph P. Tracy 1939-5-6 16278 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  SEINET12218663  Sedum divergens J. P. Tracy 1950-1 19294 Humboldt Croghan Hole on Trinity Summit 1676 Comment
  UC667081  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon Summit 1767 Comment
  HSC57959  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11659 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC14456  Sedum radiatum Chesnut and Drew August, 1888 Humboldt Comment
  JEPS73714  Sedum spathulifolium L. R. Heckard with T. I. Chuang 1968-7-5 1988 Humboldt along Mail Ridge Road 4 1/2 mi n of its junction with the Harris Road (e of Garberville); e of Garberville Comment
  UC524120  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt mouth of Little River mouth Little River Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  HSC100455  Sedum spathulifolium Carl C. Marshall Jun 1887 471 Humboldt Rocks, S Humboldt. Comment
  JEPS25690  Sedum spathulifolium P. C. Hutchison 1961-5-22 2020 Humboldt 5.4 mi ne of Klamath River bridge at Weitchpec (10 mi sw of Orleans, Hiway US299, w side of Klamath River on steep rocks above road); w side Klamath River, ne Weitchpec, sw Orleans Comment
  JEPS48063  Sedum spathulifolium W. L. Jepson 1902-6-20 1908 Humboldt Hubbard's Station to Main Eel River; Hubbard's Station to Main Eel River Comment
  RSA0081473  Sedum spathulifolium C. B. Wolf 1927-8-28 1163 Humboldt 8 miles above Weitchpec, Trinity River. Comment
  CAS-BOT-BC69740  Selaginella wallacei Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC43159  Selaginella wallacei R. Sutherland 1976-8-24 2 .24876 Humboldt 543 Comment
  CDA8589  Senecio bolanderi E. C. Whitney 1970-6-25 Humboldt Mountain View. 0 Comment
  HSC56353  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6324 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CAS-BOT-BC364016  Senecio integerrimus var. major Joseph P. Tracy 1928-5-6 8429 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC204868  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp on old Kneelans Praire Road 457 Comment
  CAS-BOT-BC364331  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  HSC63881  Senecio triangularis M. A. Baker 1979-6-27 923 Humboldt Edge of Hoopa Indian Reservation Comment
  CAS-BOT-BC85838  Sequoia sempervirens Doris K. Kildale 1927-5-15 3160 Humboldt Petrolia Bridge Mattole River Comment
  CHSC57336  Sequoia sempervirens Michelle Y. Wagner 1990-4-10 15 Humboldt Hope creek trail, 5 miles n of Orick. Ravine on w side of Hwy 101. 152 Comment
  JEPS48274  Sequoia sempervirens Willis Corbitt 1931-4-8 Humboldt Scotia Comment
  SEINET6727392  Sequoia sempervirens P. Lehenbauer 1854 Humboldt Near Eureka Comment
  UC64433  Sequoia sempervirens H. M. Hall 1899-10-1 Humboldt Eel River Comment
  UC667964  Sequoia sempervirens Joseph P. Tracy 1937-2-21 15231 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  NY64474  Sequoia sempervirens P. Nuns 12 1967 s.n. Humboldt Our Lady of Redwoods Monastery, Whitehorn Comment
  UCD92873  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC12703  Sherardia arvensis Jana Kattenhorn 1970-10-28 148 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  UC153948  Sidalcea malachroides J. P. Tracy 1910-5-22 3141 Humboldt vicinity Eureka; vicinity of Eureka 0 Comment
  HSC35614  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  UC1197976  Sidalcea malviflora subsp. patula Joseph P. Tracy 1927-6-18 8180 Humboldt hills w Petrolia; Northern Coast Ranges, w of Petrolia 152 Comment
  HSC104426  Sidalcea malviflora subsp. patula Bianca Hayashi 2013-6-13 Humboldt South of Bald Mountain Comment
  JEPS67257  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy meadow Northern Coast Range, , Murphy meadow (Bald Mountain) 1066 Comment
  POM160836  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie 61 Comment
  HSC103771  Silene bolanderi M. R. Mesler 2014-6-4 1633 Humboldt Burr Valley Road near Dinsmore 1014 Comment
  POM286444  Silene californica Lyman Benson 1929-7-19 1659 Humboldt Mouth of Matole River. Comment
  UC1198353  Silene californica Joseph P. Tracy 1938-7-7 16040 1/2 Humboldt Grouse Mountain 1524 Comment
  JEPS23253  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  POM160266  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain. 1524 Comment
  UC162884  Silene campanulata subsp. glandulosa Harley P. Chandler June, 1901 1471 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC37960  Silene gallica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UC630502  Silene gallica H. E. and S. T. Parks June, 1936 5634 Humboldt Spruce Cove , Spruce Cove (Trinidad) Comment
  UCD98626  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC59744  Silene gallica Clark L. Miller 1979-5-9 6116 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  HSC62895  Silene gallica J. M. DiTomaso 1979-5-20 1053 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  UCD98692  Silene gallica James Payne Smith Jr. 1970-6-7 3804 Humboldt 0.6 miles south of Luffenholtz Beach along California 1 near Trinidad. Comment
  CAS-BOT-BC181223  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  CAS-BOT-BC389065  Silene laciniata subsp. californica Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  HSC41200  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3588 Humboldt Along W side of road N of Alder Springs 1524 Comment
  HSC44729  Silene laciniata subsp. californica Maralyn O'Meara 1972-6-8 78 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UCSB11773  Silene laciniata subsp. californica Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  UC184692  Sisymbrium altissimum Joseph P. Tracy 1912-8-3 3975 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  CAS-BOT-BC75284  Sisymbrium officinale Kenneth Clark 1980-5-10 639 Humboldt Shelter Cove. Dead Man's Gulch. 15 Comment
  HSC62863  Sisyrinchium californicum J. M. DiTomaso 1979-5-20 1047 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  JEPS62108  Smilacina racemosa W. L. Jepson 1902-7-24 2114 Humboldt 1/2 mi below summit; Trinity Summit 2133 Comment
  UC1197803  Smilacina racemosa Joseph P. Tracy 1927-6-12 8150 Humboldt Horse Mountain; below top of mt. 1280 Comment
  SEINET3888098  Smilacina stellata var. sessilifolia Thomas Nelson, James Nelson 1975-5-24 1844 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC12029  Solanum americanum D. Santana 1970-11-2 94 Humboldt 3 mi. S of Trinidad on old Hwy. 1 Comment
  HSC89464  Solanum americanum P. A. Daly 1986-2-23 52 Humboldt Along trails at Trinidad Head 6 Comment
  HSC47104  Solanum aviculare J. O. Sawyer 1978-11-5 3324 Humboldt Old Stagecoach rd. 1/5 mi. N of entrance to Trinidad Beach State Park Comment
  HSC21308  Solanum nigrum Francis Morrell 1949-5-30 35 Humboldt Weitchpec Comment
  HSC102169  Solidago elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1081 Humboldt Patterson Meadows 1555 Comment
  HSC58209  Solidago elongata Walter Overton 1979-8-1 12328 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC524127  Solidago elongata Ira L. Wiggins 1932-7-25 5895 Humboldt near McKinleyville Comment
  HSC12531  Solidago spathulata Wilbur Peterson 1970-10-7 22 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  CHSC10128  Sonchus asper J. W. Johnson 1961-6-12 1410 Humboldt Samoa Peninsula. On a dune tongue between the foredunes, at Foredune 39. Comment
  CAS-BOT-BC374425  Sonchus asper F. A. MacF. 1934-6-22 13743 Humboldt Arcata, North coast of California Comment
  HSC40944  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC205632  Sorbus scopulina var. cascadensis Joseph P. Tracy 1919-9-24 5292 Humboldt Trinity Summit Comment
  RSA640443  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth. Arcata Salt Marsh Project. Comment
  UC249860  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka Northern Coast Ranges (salt marsh at railroad station) 0 Comment
  CDA26369  Spartina foliosa G. D. Barbe, Dick Drewery 1988-7-18 4294 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  UCR21766  Spartina foliosa Denis Kearns 1979-8-24 20 Humboldt North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street 1 Comment
  HSC79185  Spergula arvensis L. P. Janeway 1984-2-4 710 Humboldt Along Bayside Rd. NW of Jacoby Creek School 18 Comment
  HSC26466  Spergularia macrotheca T. O. Osborne 1970-4-8 23 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  RSA246888  Spergularia macrotheca R. F. Thorne, Percy C. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  CAS-BOT-BC390302  Spergularia macrotheca var. macrotheca Alice Eastwood; John Thomas Howell 1936-7-3 3782 Humboldt Eureka Comment
  HSC4254  Spergularia rubra D. E. Anderson 1961-9-30 1838 Humboldt Comment
  CAS-BOT-BC149615  Spiraea douglasii Henry M. Pollard 1947-8-19 s.n. Humboldt Klamath River nr. Redcap Creek, Orleans region Comment
  RSA46477  Spiraea douglasii Doris K. Kildale 1927-6-26 3601 Humboldt Big Lagoon. Comment
  UC1199030  Spiraea douglasii J. P. Tracy 1901-6-30 1198 Humboldt immediate vicinity Eureka 0 Comment
  HSC34651  Spiraea splendens var. splendens K. Irwin 1975-8-16 Humboldt N Trinity Mtn. area Comment
  BLMAR739  Stachys ajugoides Jennifer Wheeler 2015-5-12 739 Humboldt King range, Telegraph ridge btwn Oat and Spanish 670 Comment
  HSC99553  Stachys ajugoides var. rigida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 218 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC153992  Stachys ajugoides var. rigida J. P. Tracy 1906-5-20 2466 Humboldt immediate vicinity Eureka 0 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC577328  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UC726345  Stachys ajugoides var. rigida A. A. Heller 1923-7-8 13769 Humboldt near Pepperwood Comment
  UC668221  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16132 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  SEINET10499253  Stachys chamissonis H. Lewis 1940-7-3 Lewis s.n. Humboldt Little river beach state park Comment
  HSC39166  Stachys mexicana D. E. Anderson, J. P. Smith 1971-6-28 - 1237 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC14421  Stachys rigida J. F. Knezevich 1968-5-14 436 Humboldt 13 mi. S of Ferndale at Cape Mendocino 0 Comment
  HSC61048  Stachys rigida Jimerson, J. Pageau 1979-8-10 747 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  RSA167436  Stachys rigida subsp. quercetorum Joseph P. Tracy 1950-6-8 18741 Humboldt Near Petrolia. Hills between town and ocean. 30 Comment
  SDSU7951  Stachys rigida var. rigida D. F. Howe 1964-8-7 3943 Humboldt Hoopa Valley 1067 Comment
  UC162363  Stellaria crispa Joseph P. Tracy 1900-8-5 914 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC100419  Stellaria longipes Carl C. Marshall May 1886 227 Humboldt Near H. and S to mill E of Arcata. Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC183618  Stellaria media Joseph P. Tracy 1913-3-9 4015 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC4273  Stellaria media D. K. Smith 1968-1-16 2 Humboldt Bank of Crannell Rd. Comment
  HSC98400  Stellaria media R. D. Modafferi 1965-4-8 3 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC58815  Stipa occidentalis var. californica G. L. Clifton, Griswold 1979-8-1 12055 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC73750  Streptanthus tortuosus M. A. Baker 1980-7-15 2942 Humboldt Near Whiting Ridge. 1341 Comment
  HSC57893  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-31 11468 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC74132  Streptanthus tortuosus var. tortuosus R. York 1980-5-23 612 Humboldt Near Buck Mtn. 1524 Comment
  UC1103498  Streptopus amplexifolius var. americanus Joseph P. Tracy 1936-8-7 15094 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC17760  Stuckenia pectinata Rollin Sparrowe 1962-5-16 25 Humboldt S of road Comment
  UC562304  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCR198251  Symphoricarpos albus Dean Kelch 2007-7-25 07- 506 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  CAS-BOT-BC269565  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-6 s.n. Humboldt Requa and vicinity. 2 miles up Klamath River Comment
  HSC63805  Symphoricarpos mollis M. A. Baker 1979-5-25 762 Humboldt Comment
  HSC76249  Symphoricarpos mollis Denis Kearns 1981-7-23 414 Humboldt Near Whiteys Peak. 1524 Comment
  CAS-BOT-BC99173  Symphyotrichum chilense Alice Eastwood 1923-8-14 12318 Humboldt Samoa Comment
  HSC49139  Symphyotrichum chilense J. O. Sawyer, R. J. Cole 1978-10-10 3319 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  HSC90472  Symphyotrichum chilense Jean Hanson 1980-8-28 125 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1222982  Symphyotrichum hendersonii Joseph P. Tracy 1941-8-24 17040 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  UC1359832  Symphytum asperum Johnnie L. Gentry Jr. and Earl Jensen 1968-7-5 2120 Humboldt on Tompkins Hill Rd. s. of Eureka (ca. 2 mi. e. of Hwy. junction U.S. 101 and Tompkins Hill Rd.) 30 Comment
  HSC21152  Synthyris reniformis N. J. Cole, D. E. Anderson 1965-4-13 12 Humboldt 2.5 mi. SE of Maple Creek Rd. junction with Bald Mtn. Rd., SE of Korbel Comment
  JEPS26261  Synthyris reniformis Joseph P. Tracy 1926-2-28 7379 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  RSA183562  Synthyris reniformis D. E. Anderson 1965-4-24 3542 Humboldt About 0.5 mile from jct 299, along Titlow Hill Road. Comment
  SEINET3816603  Tanacetum bipinnatum J. P. Tracy 1901-8-7 1269 Humboldt Sand hills of ocean beach at Samoa, opp eureka Comment
  RSA233223  Tanacetum camphoratum P. H. Raven 1962-8-31 18079 Humboldt Dry Lagoon State Park. Comment
  CAS-BOT-BC447402  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET12216923  Tellima grandiflora F. H. Utech 1986-1 86 -390 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  UC1196171  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1929-8-18 8655 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  RSA167423  Thalictrum polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Humboldt County: Burr Valley, NW slope of Buck Mtn, alt 3500ft 1067 Comment
  UC1129924  Thermopsis macrophylla var. macrophylla A. E. Wieslander 1931-5-19 7 Humboldt near Orleans; Klamath National Forest, Hoopa Quadrangle Comment
  SEINET6934811  Thermopsis macrophylla var. venosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt West of top of grade down to Klamath River, southeast of Orick. Comment
  UC1198811  Thlaspi montanum var. montanum Joseph P. Tracy 1939-4-29 16234 Humboldt near Weitchpec (along Trinity River); , near Weitchpec 121 Comment
  HSC30092  Thuja plicata Chris Gist 1973-5-14 150 Humboldt HSC Campus S of Engineering Building Comment
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
Read comments
Jul 25 2018
  SBBG34243  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  SDSU1860  Thuja plicata D. F. Howe 1963-8-7 3705 Humboldt 30 miles west of west entrance to Six Rivers National Forest on #299. 183 Comment
  SEINET3866804  Thuja plicata Jack D. Brotherson 1982-7-14 3315 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  HSC97624  Thysanocarpus curvipes Cara Witte 2007-6-4 194 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  CAS-BOT-BC88326  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC154149  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa; near Hupa Comment
  UC303174  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1923-6-20 6314 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  SD88373  Tiarella trifoliata var. unifoliata Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  UC677699  Tiarella trifoliata var. unifoliata C. C. and S. K. Harris 1936-6-16 660 Humboldt Redwood forest on Yager Road from Carlotta 152 Comment
  HSC97505  Tonella tenella Cara Witte 2007-5-22 74 Humboldt Cold Spring. 0.5 miles south of Titlow Hill. 1422 Comment
  SACT002419  Torresia macrophylla V. Barnes 1959-1 Humboldt Comment
  HSC58403  Torreyochloa pallida var. pauciflora Griswold, Butler 1979-7-11 7037 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  RSA46908  Toxicodendron diversilobum Doris K. Kildale 1926-9-9 2676 Humboldt Van Duzen River Comment
  HSC63067  Tradescantia ohiensis David Wheeler 1979-5-17 115 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  CAS-BOT-BC399989  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-25 15564 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC154002  Trichostema oblongum Joseph P. Tracy 1908-6 2824 Humboldt Buck Mountain, NW slope Northern Coast Ranges 1219 Comment
  RSA245214  Trientalis latifolia E. W Styskel 1963-5-16 24 Humboldt 3 miles SE of Korbel, Snow Camp Road. 290 Comment
  UC1197493  Trifolium barbigerum Joseph P. Tracy 1904-4-24 2027 Humboldt Ocean Beach Humboldt Bay Comment
  UC1223514  Trifolium barbigerum Joseph P. Tracy 1942-6-15 17120 Humboldt Englewood Prairie Comment
  RSA168904  Trifolium bifidum var. decipiens Joseph P. Tracy 17427 Humboldt Trinity Highway, east of Redwood Creek, at Berrys. Comment
  SEINET12157175  Trifolium cyathiferum J. P. Tracy 1937-1 15519 Humboldt Devils Hole, head of Hors Linto Creek, Trinity Summit 1676 Comment
  UC249727  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS66053  Trifolium dubium W. L. Jepson 1902-6-24 1923 Humboldt Eureka to Arcata Comment
  UCD108882  Trifolium dubium W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  HSC100531  Trifolium eriocephalum Carl C. Marshall Jun 1886 282 Humboldt Bald Hills, near Orcutt's. Comment
  HSC35278  Trifolium eriocephalum J. D. Ackerman 1975-6-18 470 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  HSC44835  Trifolium eriocephalum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3603 Humboldt Along old trail N of Alder Spring 1555 Comment
  SEINET12147892  Trifolium eriocephalum J. P. Tracy 1933-1 12647 Humboldt Brannan Mountain 1067 Comment
  UC495650  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8769 1/2 Humboldt Larrabee VAlley Northern Coast Ranges 701 Comment
  UC1223458  Trifolium fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt s Cape Ridge (near ocean); Cape Mendocino Comment
  UC1197189  Trifolium gracilentum Joseph P. Tracy 1932-5-17 10084 Humboldt Willow Creek North Coast Ranges, Trinity River Valley 152 Comment
  UC495657  Trifolium longipes var. elmeri Joseph P. Tracy 1936-7-13 10525 Humboldt Trinity Summit Klamath Mtns, Corral Prairie 1524 Comment
  HSC95210  Trifolium microcephalum Andrea Pickart 2002-7-3 155 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  HSC98928  Trifolium microcephalum Cara Witte 2007-6-7 229 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC15145  Trifolium microcephalum J. W. Johnson 1962-5-13 1355 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  HSC15148  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC1130106  Trifolium obtusiflorum H. S. Yates 1936-6-23 5871 Humboldt 3 mi ne Scotia; Rohnerville Quad. Comment
  UC180206  Trifolium obtusiflorum Joseph P. Tracy 1914-7-5 4545 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  HSC23489  Trifolium pratense R. A. Vanbianchi 1971-9-24 89 Humboldt Comment
  HSC77398  Trifolium pratense L. P. Janeway 1983-5-3 259 Humboldt Along E Fence of HSU playing field 21 Comment
  HSC89587  Trifolium repens M. Roantree 1985-5-24 62 Humboldt E side of Trinidad Head Comment
  HSC45643  Trifolium willdenovii Diane L. Reed 1978-4-22 18 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC16761  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 d Humboldt Harris Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  UC198572  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UC1223524  Trifolium wormskioldii Joseph P. Tracy 1936-5-29 14828 Humboldt 4 mi e Orick; Grans Prairie 548 Comment
  SEINET10862710  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1924-7-23 Heller 13876 Humboldt Wet soil in a ditch along the road leading to the lighthouse on Trinidad Head. Comment
  HSC82962  Triglochin concinna A. L. Eicher 1985-6-19 Humboldt Bordering the SW side of the mouth of Mad River Slough, in Humboldt Bay 1 Comment
  CHSC68791  Triglochin maritima Vernon Oswald 1997-6-5 8531 Humboldt Arcata Oxidation Ponds on South G St., south of Hwy. 255. 6 Comment
  HSC36439  Triglochin maritima John Rehling 1974-7-8 8 Humboldt Big Lagoon Bog Comment
  RSA46966  Trillium albidum E. N. Crosby 1935-3-10 66 Humboldt Blue Lake Comment
  HSC101798  Trillium albidum Kjirsten A. Wayman 2011-6-5 279 Humboldt Near Cold Spring camp, 7.4 mi. south of Hwy 299 on Titlow Hill Rd., N 40.82998 deg. W 123.71219 deg. 1408 Comment
  HSC101812  Trillium albidum Kjirsten A. Wayman 2012-4-29 314 Humboldt Near Burnt Ranch, south of Hwy 299 on FR 5N40, west of intersection with 5N27, N 40.78805 deg. W 123.51164 deg. 942 Comment
  HSC101808  Trillium kurabayashii Kjirsten A. Wayman 2012-4-1 304 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  CHSC23038  Trillium ovatum E. K. Daniels 1964-4-18 33 Humboldt Prairie Creek State Park; 1 mi from Pacific Ocean beach on trail towards Park Headquarters. 30 Comment
  CAS-BOT-BC133393  Trillium ovatum Doris K. Kildale 1927-3-20 2929 Humboldt Philipsville, south fork of Eel River Comment
  HSC48531  Trillium ovatum Mark Flippo 1978-4-8 12 Humboldt McKinleyville; Bella Vista Hill Comment
  SDSU11973  Trillium ovatum Leslie Hickson 1990-4-15 15 IV90F Humboldt Oak Street 0.5 miles north of Freshwater. Off the right side of the road under the Redwood tees. Eureka, Ca. Comment
  CAS-BOT-BC521316  Trillium rivale L. B. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  UC657728  Triphysaria eriantha subsp. eriantha Milo S. Baker 1941-4-10 9942 Humboldt along hiwy a few mi s Eureka Comment
  HSC70582  Triphysaria pusilla Sue Sweet 1981-4-30 548 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  UC27277  Triphysaria pusilla C. E. Spear April, 1898 Humboldt Waddington Comment
  POM207185  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA10052  Trisetum canescens Joseph P. Tracy 1926-5-22 7502 Humboldt Northern Coast Ranges, Prairie Creek. 152 Comment
  UCD93304  Trisetum canescens A. A. Beetle; G. L. Stebbins 1942-6-1 3457 Humboldt 7 miles north of Weitchpec, in northern Humboldt County. Comment
  UCD93892  Trisetum canescens Joseph P. Tracy 1901-5-30 1109 Humboldt At Eureka. 0 Comment
  UC146193  Triteleia hyacinthina Joseph P. Tracy 1908-6 2805 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  CAS-BOT-BC519141  Triteleia hyacinthina Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  HSC32937  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC35965  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1949 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  UCD135135  Tsuga heterophylla M. Van Rensselaer 1938-3-31 s.n. Humboldt Humboldt County. Exact location not specified. Comment
  RSA47119  Umbellularia californica Doris K. Kildale 1926-8-15 2515 Humboldt Willow Creek Flat 152 Comment
  UC1196280  Umbellularia californica Joseph P. Tracy 1924-8-31 6844 Humboldt Klamath River at Bluff Creek Klamath River; Northern Coast Ranges, , Bluff Creek 91 Comment
  HSC62761  Urtica dioica subsp. gracilis J. M. DiTomaso 1979-4-21 889 Humboldt 50 yds. from Little River, 200 yds. from beach, 11 mi. N of Arcata. Comment
  UC302987  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt around Humboldt Bay (Northern Coast Region, Elk River Valley); Northern Coast Region, Elk River Valley 30 Comment
  HSC59491  Utricularia macrorhiza M. A. Ericksen 1979-4-24 217 Humboldt Behind Fieldbrook School, in Fieldbrook Comment
  CAS-BOT-BC193961  Vaccinium cespitosum Doris K. Kildale 1928-5-25 6039 Humboldt Foot of Third Street near drawbridge on Eureka Slough, Eureka Comment
  HSC24098  Vaccinium cespitosum J. O. Sawyer 1971-6-14 2379 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  UC1222632  Vaccinium cespitosum Joseph P. Tracy 1951-6-26 19554 Humboldt Snow Camp 1402 Comment
  UC32652  Vaccinium cespitosum E. Ethel Tracy 1901-9-5 1279 Humboldt Eureka Comment
  BLMAR145  Vaccinium ovatum Donald Hazlett 1994-6-7 145 Humboldt King range, near horse Mt. Ridge rd, east facing slope 670 Comment
  CAS-BOT-BC199309  Vaccinium ovatum L. R. Abrams 1916-7-11 5992 Humboldt Between Balocksberg [Blocksburg] and Bridgeville Comment
  CAS-BOT-BC199325  Vaccinium ovatum Ira L. Wiggins 1930-6-25 4613 Humboldt 2 miles north of Samoa Comment
  SBBG21991  Vaccinium ovatum R. F. Thorne 1957-9-2 18997 Humboldt Burlington State Park, just S of Weott Comment
  SEINET2029498 Image available Vaccinium ovatum H. E. Parks, S. T. Parks 5638 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC199408  Vaccinium parvifolium C. C. Harris; S. K. Harris 1936-6-9 3297 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  CAS-BOT-BC199417  Vaccinium parvifolium Doris K. Kildale 1926-8-15 2547 Humboldt Hoopa Mountain 792 Comment
  JEPS58705  Vaccinium parvifolium W. L. Jepson 1902-6-24 1926 Humboldt Korbel to Angel's Ranch Comment
  JEPS58710  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newell's old cmap, Kneeland Prairie Road, around Humboldt Bay, Northern Coast Region, Humboldt Bay 457 Comment
  OBI14439  Vaccinium parvifolium H. E. McMinn 1931-6-28 2543 B Humboldt Orick to Requa Comment
  OBI35857  Vaccinium parvifolium David J. Keil 1983-7-2 17329 Humboldt Horse Mtn summit SW of Willow Crk. Comment
  HSC102568  Vancouveria hexandra M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1555 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC37713  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 373 Humboldt Van Duzen Co. Park, off Hwy. 36, 6 mi. E of Carlotta 61 Comment
  HSC69623  Vancouveria hexandra R. Kalal 1979-5-20 68 Humboldt Fickle Hill Rd., 1 mi. E of 11th St. 189 Comment
  CAS-BOT-BC76094  Vancouveria planipetala M. S. Jussel 1931-5-2 79 Humboldt 20 miles north of Garberville. Comment
  HSC41305  Vancouveria planipetala Brad Klipfel 1974-7-23 468 Humboldt Horse Mtn. Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  HSC38742  Vancouveria planipetala J. D. Ackerman 1975-6-18 468 Humboldt Big Hill Rd., 7.9 mi. E of Hoopa and Hwy. 96 Comment
  UC1222526  Veratrum californicum var. californicum Joseph P. Tracy 1950-9-2 19347 Humboldt 2 mi s Field's Landing town (at Still Ranch) 6 Comment
  UC902013  Veratrum californicum var. californicum H. E. Parks and J. P. Tracy 1949-6-25 11676 Humboldt meadow Trinity Summit, Box Camp 1463 Comment
  UC1225853  Veratrum insolitum Joseph P. Tracy 1948-9-5 18180 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC58115  Veratrum viride G. L. Clifton, Griswold 1979-8-1 12074 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC99387  Veronica americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 36 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC147878  Veronica americana Joseph P. Tracy 1908-6 2718 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  UC147891  Veronica peregrina subsp. xalapensis J. P. Tracy 1910-5-22 3136 Humboldt immediate vicinity of Eurika 0 Comment
  CHSC53307  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd and ca 1/4 mile northwest of the boat ramp. 3 Comment
  UC1192005  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt at the southern outskirts of Eureka Comment
  HSC21200  Veronica serpyllifolia subsp. humifusa D. E. Anderson 1965-9-5 4093 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UCSC000430  Vicia sativa H. S. Yates 1936-6-23 5870 Humboldt 13 miles S.E. of Scotia Comment
  JEPS29847  Vicia sativa subsp. nigra Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7837 Humboldt about 1 mi w of Carlotta (or 1/2 mi e of Hydesville) Comment
  JEPS66198  Vicia tetrasperma Milo S. Baker 1923-7-23 92 Humboldt near Carlotta (Manning Creek); Manning Creek Comment
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Feb 15 2013
  UC198596  Vicia tetrasperma Joseph P. Tracy 1916-5-31 4688 Humboldt Stitc Creek Stitz Creek (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  UCR40074  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt North Spit of Humboldt Bay; BML [sic - BLM?] lands near the Coast Guard Station. 5 Comment
  UCR71484  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt North Coast Range, Hwy 299 roadside c. 8 mi. east of Arcata, 9.5 mi. west of Lord Ellis summit Comment
  HSC71620  Vicia tetrasperma J. P. Smith 1973-5-26 6809 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCSB61648  Vicia tetrasperma Ertter, Barbara; Delendick, Thomas 1987-5-16 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit Comment
  HSC104036  Vicia villosa subsp. villosa E. R. Fyer 2015-4-26 22 Humboldt At turnout off Samoa Blvd., at railroad bridge 3 Comment
  HSC3225  Vinca major D. K. Smith 1968-2-2 4 Humboldt On the bank of Crannell Rd. past the bridge Comment
  UC1198434  Viola adunca Joseph P. Tracy 1936-4-25 14799 Humboldt Trinidad 60 Comment
  HSC100915  Viola blanda Carl C. Marshall Jun 1886 312 Humboldt Trinity Summit. Comment
  HSC41233  Viola cuneata Brad Klipfel 1974-5-8 323 Humboldt Horse Mtn. Comment
  HSC55596  Viola cuneata Overton, Butler 1979-7-23 9407 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC19274  Viola cuneata Harley P. Chandler June, 1901 1297 Humboldt Hupa Indian Reservation; North Coast Ranges 609 Comment
  HSC48741  Viola glabella Brad Klipfel 1973-6-10 66 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56145  Viola glabella G. L. Clifton, Griswold 1979-8-1 11974 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC536493  Viola glabella Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC71155  Viola glabella Thomas W. Nelson 1977-6-15 3428 Humboldt Along FS 6N01, just N of Clear Lake 1372 Comment
  RSA24186  Viola glabella Carl B. Wolf 1941-3-1 9980 Humboldt 0.2 mi NE of Strongs Station (on the Van Duzen River) on rd to Yaeger. 61 Comment
  UC1103563  Viola glabella Joseph P. Tracy 1940-8-25 16710 Humboldt near High Prairie; Bald Mountain 1036 Comment
  UC1198447  Viola glabella Joseph P. Tracy Jul 16 1930-Jul 19 1930 9020 Humboldt forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC39000  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-5-31 2654 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC21824  Viola ocellata Jack Rockwell 1962-5-12 70 Humboldt N of Bridgeville in hillside canyon 213 Comment
  POM286593  Viola ocellata Lyman D. Benson 1928-7-11 403 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  HSC99094  Viola praemorsa subsp. praemorsa C. Witte 2007-5-8 7 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  RSA168956  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1950-4-20 18607 Humboldt Dinsmore's, along Van Duzen River, opposite Buck Mountain. 762 Comment
  SEINET10404787  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  HSC21852  Viola sempervirens H. E. Parks May 1936 5677 Humboldt Spruce Cove, Trinidad. Comment
  UC66211  Viola sempervirens Harley P. Chandler June, 1901 1292 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  UC668241  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC89549  Vulpia bromoides M. Roantree 1985-5-7 38 Humboldt W side of Trinidad Head, along trail. Comment
  HSC9908  Vulpia microstachys J. P. Tracy 1926-5-2 7440 Humboldt Trinity River Valley, near the south fork. 183 Comment
  UCD93706  Vulpia microstachys H. S. Yates 1936-6-17 5712 Humboldt near Burr Valley. 914 Comment
  UC1103720  Vulpia microstachys var. microstachys Joseph P. Tracy 1926-5-2 7441 1/2 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET7295259 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-1 17224 Humboldt Trinity Summit; Ridge top one mile west of Mud Springs 1158 Comment
  UC212887  Vulpia microstachys var. pauciflora Joseph P. Tracy 1919-5-31 5161 1/2 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  SD51271  Whipplea modesta Darley F. Howe 1961-8-2 3121 Humboldt 7.7 miles east of Orick on Bald Mountain Road. 609 Comment
  UC14483  Whipplea modesta Chesnut and Drew 1888-7-21 Humboldt Hy-Am-Pum Comment
  UC666827  Whipplea modesta Joseph P. Tracy 1933-6-7 12522 Humboldt Blue Slide Van Duzen River 91 Comment
  UC725983  Whipplea modesta A. A. Heller 1937-6-8 15894 Humboldt 3 mi n Trinidad; Bishop Pine Lodge Comment
  SEINET10898891  Whipplea modesta Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r63,sec.34,h.m.; Grays falls campground, off hwy 299, about halfway down to River on shaded slope, habitat included madrone, douglas fir, and canyon live Oak 241 Comment
  HSC13047  Woodwardia fimbriata Jana Kattenhorn 1970-10-24 122 Humboldt H.S.C. Campus, Arcata, N side of building 53 Comment
  CAS-BOT-BC382929  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC71670  Wyethia angustifolia M. A. Baker 1980-6-26 2382 Humboldt Near Sims Creek 610 Comment
  JEPS32100  Wyethia angustifolia W. L. Jepson 1903-6 2201 Humboldt Bells Spring Ridge (= Mail Ridge) Bells Spring Ridge 1005 Comment
  JEPS32115  Wyethia longicaulis Jos. P. Tracy 1923-6-21 4254 Humboldt near summit of ridge between Van Duzen and Mad Rivers (Dinsmore Ranch) 1066 Comment
  UCD137004  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  SEINET11799554  Wyethia longicaulis J. P. Tracy 1950-1 18942 Humboldt near Clear Lake where Friday Ridge Rd comes to top of Grouse Mountain Ridge Comment
  HSC12355  Zeltnera muehlenbergii Steve Dorei 1970-10-31 130 Humboldt Scotia Bluff area Comment
  UC176186  Zigadenus micranthus var. micranthus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3629 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1005682  Zigadenus micranthus var. micranthus Frank W. Gould 1939-5-30 840 Humboldt about one-half mi below the ski-hut (about 25 mi due e Eureka, Horse Mountain); Horse Mountain 1100 Comment
  CDA867  Zostera japonica Gordon Leppig 2002-7-8 1784 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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