Search Results — 2000 specimen records retrieved (1380 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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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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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77963  Abies concolor Henry M. Pollard 1944-9-1 s.n. Humboldt Orleans Mt. 1524 Comment
  UC1204915  Abies concolor Joseph P. Tracy 1948-9-5 18202 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  CAS-BOT-BC78056  Abies grandis Alice Eastwood 1923-8-14 12324 Humboldt Samoa Comment
  HSC1343  Abies grandis Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC73215  Abies procera Gail Newton 1980-6-24 603 Humboldt Near Ladder Rock 1570 Comment
  CAS-BOT-BC383848  Abronia latifolia W. R. Dudley 1899-6-1 s.n. Humboldt Samoa Comment
  HSC62913  Abronia latifolia J. M. DiTomaso 1979-5-20 1062 Humboldt Little River State Beach 10 mi. N of Arcata Comment
  RSA0025084  Abronia latifolia Robert F. Thorne 1957-9-3 19012 Humboldt Little River Beach, few miles S of Trinidad. Comment
  HSC27944  Acaena novae-zelandiae Gary S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, E of McKinleyville near Fieldbrook 152 Comment
  HSC102073  Acer glabrum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 975 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1199016  Acer glabrum Joseph P. Tracy 1935-7-31 14394 Humboldt w side Devil's Backbone (barren rocky ridge connecting Trinity Summit with Salmon Summit); w side Devil's Backbone 1524 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC58344  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12671 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC57033  Acer macrophyllum Overton, Butler 1979-7-24 9664 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC28585  Achillea millefolium Doris Kildale Gillespie 1931-6-7 s.n. Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  HSC24376  Achillea millefolium J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC75508  Achillea millefolium J. O. Sawyer, R. J. Cole 1977-7-3 3015 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  SD90228  Achillea millefolium Benjamin C. Stone 1952-6-25 140 Humboldt 15 miles south of Klamath on Hwy. 101. 14 Comment
  RSA416222  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  SFV18535  Achillea millefolium L. Hagenauer 2002-4-29 31 Humboldt Arcata. Path along McDaniel Slough leading to Humboldt Bay, V Street. Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  UC1445424 Image available Achlys californica Ichiro Fukuda and Herbert G. Baker 1963-8-23 Humboldt at Pesula road Humboldt Redwoods State Park 60 Comment
  HSC37361  Achlys triphylla Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 493 Humboldt Along Lost Man Creek. 38 Comment
  HSC81935  Achlys triphylla Thomas W. Nelson, Jane Nelson 1979-7-3 4958 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC3330  Achlys triphylla Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  HSC3342  Achlys triphylla Jack Rockwell 1962-4-29 36 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  JEPS47754  Achlys triphylla subsp. triphylla Lincoln Constance 1934-6-1 773 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Cr.); S. Fork Eel R., Bull Creek Region 45 Comment
  UC30137  Achlys triphylla subsp. triphylla W. C. Blasdale 1896-6-6 Humboldt Fitzgerald's Comment
  UC1145039  Achnatherum lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt on road from Bull Creek to Upper Mattole (Panther Gap); Panther Gap 822 Comment
  UC180895  Achnatherum lemmonii Joseph P. Tracy 1913-6-20 4246 Humboldt near summit between Van Duzen River and Mad River; Northern Coast Ranges, Van Duzen River, , Dinsmore' 1066 Comment
  UCD50519  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp and Twin Lakes (at Preston's old gate near road). Humboldt County. Comment
  BLMAR508  Acmispon brachycarpus Jennifer Wheeler 2009-5-12 508 Humboldt Red Mountain, In serpentine meadow S of School Section Creek 792 Comment
  HSC45096  Acmispon micranthus R. Sutherland 1978-5-13 3 .13578 Humboldt Mattole River. 282 Comment
  HSC97999  Aconitum columbianum Cara Witte 2007-7-9 452 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1554 Comment
  CAS-BOT-BC412600  Aconogonon alaskanum Volney Rattan 1883-6-18 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  CAS-BOT-BC412602  Aconogonon alaskanum Volney Rattan No date on label s.n. Humboldt Bet. P.C. [Pilot Creek] & Trinity County Comment
  HSC56217  Actaea rubra G. L. Clifton, Griswold 1979-8-2 12233 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  BLMAR360  Actaea rubra Clara Sander 2003-7-7 360 Humboldt King range, Roadside 18 Comment
  HSC4590  Adenocaulon bicolor D. E. Anderson 1961-9-23 1831 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  HSC76345  Adenocaulon bicolor Denis Kearns 1981-7-23 383 Humboldt Near Whiteys Peak 732 Comment
  RSA12438  Adenocaulon bicolor Carl B. Wolf 1934-7-2 5855 Humboldt 2 mi. from Bald Mt. on rd. to Korbel. 762 Comment
  RSA687745  Adiantum aleuticum Charlotte M. Hoak 1936-8-15 344 Humboldt Patricks Point Comment
  CAS-BOT-BC62290  Adiantum aleuticum Doris K. Kildale 1926-8-8 2448 Humboldt Bull Creek Flat Comment
  RSA687730  Adiantum aleuticum J. P. Smith 1970-6-7 3799 Humboldt .6 miles North of Luffenholtz Beach Comment
  HSC53932  Agastache urticifolia Griswold, Butler 1979-7-11 6950 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC154271  Agastache urticifolia Joseph Burtt Davy 1899-6-20 5694 Humboldt Hoopa Valley Comment
  HSC70406  Agoseris grandiflora M. A. Baker 1980-6-7 1842 Humboldt Near Ammon Creek 732 Comment
  UC164894  Agoseris grandiflora var. leptophylla J. P. Tracy 1904-7-4 2109 Humboldt immediate vicinity Eureka 0 Comment
  HSC40016  Agoseris retrorsa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2919 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC1541538  Agrostis Harold E. Parks May 1933 4301 a Humboldt Spruce Cove Trinidad Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  UC249861  Agrostis alba Joseph P. Tracy 1924-8-17 6819 Humboldt wet places in woods Northern Coast Ranges, Trinidad 60 Comment
  RSA87118  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon Comment
  CAS-BOT-BC127279  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  UC526885  Agrostis exarata Joseph P. Tracy 1933-7-10 12656 Humboldt Trinidad Northern Coast Region 60 Comment
  UC552715  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 Humboldt Fort Seward 106 Comment
  BLMAR708  Agrostis exarata Jennifer Wheeler 2013-10-25 708 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  CAS-BOT-BC139498  Agrostis hallii W. A. Silveus 2981 Humboldt Dyerville. Comment
  HSC74861  Agrostis hallii Gail Newton 1981-8-5 2363 Humboldt Near Bug Creek, E Fork. 820 Comment
  UC1145076  Agrostis hallii Joseph P. Tracy 1947-7-3 17762 Humboldt Trinidad 3 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UC188851  Agrostis hallii Joseph Burtt Davy 1899-6-16 5564 Humboldt Alton Comment
  CAS-BOT-BC138875  Agrostis microphylla A. A. Heller 1923-7-8 13772 Humboldt Near Fortuna. Comment
  CAS-BOT-BC139126  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  HSC8805  Agrostis oregonensis R. L. Jarvis 1962-2-9 3 Humboldt Big Lagoon marsh, S of Hwy 101. Comment
  HSC58832  Agrostis pallens Overton, Butler 1979-8-2 12693 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  POM207333  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  SEINET3127763  Agrostis pallens J. B. Davy 1899-6-13 5521 Humboldt Near Pepperwood Comment
  UC1100232  Agrostis stolonifera Malcolm A. Nobs and S. Galen Smith 1949-8-3 1168 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  JEPS75413  Agrostis viridis W. L. Jepson 1932-7-26 16410 Humboldt Bull Creek 106 Comment
  CAS-BOT-BC138441  Aira caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  HSC8856  Aira caryophyllea T. L. Ackerman 1964-5-15 50 Humboldt Sand dunes across from Fairhaven sign Comment
  HSC96238  Aira caryophyllea Sara March, Gillian Levy 2005-6-8 3 Humboldt 1.4 mi S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UC1541534  Aira caryophyllea Harold E. Parks May 1934 4946 Humboldt Spruce Cove Trinidad 91 Comment
  UC1541535  Aira caryophyllea Harold E. Parks June 1936 5850 Humboldt Spruce Cove Trinidad 60 Comment
  UCD55782  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC2886  Alisma triviale Rollin Sparrowe 1962-5-16 23 Humboldt S of road Comment
  HSC58148  Allium amplectens G. L. Clifton, Griswold 1979-8-2 12193 Humboldt Near Oregon Creek. 1661 Comment
  HSC98007  Allium amplectens Cara Witte 2007-7-8 450 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC460750  Allium amplectens Doris K. Kildale 1926-5-9 2000 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC460752  Allium amplectens Carl Purdy 1933-6-1 s.n. Humboldt Fort Baker Comment
  SEINET199675  Allium amplectens J. P. Tracy 1936-6-17 14975 a Humboldt Little Van Duzen River at hwy crossing 0 Comment
  UC303139  Allium bolanderi Joseph P. Tracy 1925-6-7 7073 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon Comment
  HSC102616  Allium campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1603 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC36494  Allium falcifolium Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1897 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC57406  Allium falcifolium G. L. Clifton, Griswold 1979-7-26 10158 Humboldt Near Salmon Mtn. 2058 Comment
  HSC76218  Allium falcifolium Overton, Butler 1979-7-24 9708 Humboldt Near Black Rock 1554 Comment
  HSC66828  Allium hoffmanii M. A. Baker 1980-7-11 2791 Humboldt Near Red Mtn. 1341 Comment
  JEPS47610  Allium siskiyouense Joseph P. Tracy 1932-6-12 10484 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC2029549  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U. S. Highway 101 ca. 1.0 miles west of Orick Comment
  RSA75603  Allium unifolium Albert M. Vollmer, L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road. Comment
  HSC102015  Allium validum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 916 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  UC527556  Alnus incana subsp. tenuifolia C. B. Wolf 1931-8-28 2365 Humboldt Redwood Hwy 4 1/2 mi n Fortuna (on road to Eureka) 15 Comment
  UC774997  Alnus incana subsp. tenuifolia Carl B. Wolf 1937-8-13 9268 Humboldt 12 mi e Hoopa Valley (on new road toward Trinity Summit); North Coast Range 1676 Comment
  UC249536  Alnus rhombifolia Joseph P. Tracy 1922-10-1 6117 Humboldt Cummings Creek Noerthern Coast Ranges, Van Duzen River (5 mi e of Carlotta) 30 Comment
  UC275562  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt Northern Coast Ranges, North Dobbyn Creek North Dobbyn Creek; Northern Coast Ranges, North Dobbyn Creek 152 Comment
  HSC13111  Alnus rubra Steve Dorei 1970-10-13 40 Humboldt Arcata, HSC Campus W of Forestry Building along W edge of parking lot Comment
  HSC96512  Alnus rubra Gordon Leppig 1999-7-9 1179 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC630536  Alnus rubra H. E. and S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove Trinidad 60 Comment
  SEINET12430631 Image available Alnus rubra J. M. Tucker 1948-9-5 1865 Humboldt Along Hwy 101 3 mi S of Scotia Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  SEINET201058  Alopecurus carolinianus J. P. Tracy 1932-8-21 10360 Humboldt Three Cabins; lower W foothills of Chaparral Mtn 457 Comment
  CAS-BOT-BC138014  Alopecurus geniculatus Richard Walter Pohl 1963-6-3 9449 Humboldt Korbel. Comment
  HSC8898  Alopecurus geniculatus W. F. Cartwright 1965-5-20 77 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  RSA313194  Alopecurus geniculatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1164 Humboldt Borders of irrigation ditch, 1 mile south of Fields Landing, Eel River Valley. Comment
  RSA129279  Alopecurus pratensis H. L. Person 1932-5-11 19401 Humboldt Redwood Highway, Arcata o Eureka. 0 Comment
  SEINET202019  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  HSC28482  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad River Beach Co. Park Comment
  SD39975  Ambrosia chamissonis Edith A. Purer 1932-7-27 4160 Humboldt Near Samoa on open sand dunes Comment
  UC665537  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  BLMAR626  Amelanchier alnifolia var. semiintegrifolia Jennifer Wheeler 2011-6-15 626 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  HSC41293  Amelanchier pallida Brad Klipfel 1974-7-27 492 Humboldt Horse Mtn. Comment
  HSC41466  Amelanchier pallida J. P. Smith, J. O. Sawyer 1973-5-12 6690 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC1198747  Amelanchier utahensis Joseph P. Tracy 1947-8-24 17900 Humboldt at edges Box Camp Meadow (near Box Camp); Trinity Summit 1463 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  UC1222278  Amsinckia intermedia Joseph P. Tracy 1948-5-31 18023 Humboldt 2 mi w of Bridgeville (roadside, at the big rock) Comment
  HSC23719  Anagallis arvensis Tim Baroni 1971-7-5 104 Humboldt 8 mi. E of Petrolia Comment
  UC1191691  Anagallis arvensis Malcolm A. Nobs and S. Galen Smith 1949-8-11 1342 Humboldt e. shore Stone Lagoon Comment
  HSC89440  Anagallis arvensis P. A. Daly 1984-7-16 29 Humboldt Trinidad Head 61 Comment
  RSA15556  Anaphalis margaritacea C. B. Wolf 1927-8-30 1230 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
  UC54004  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  HSC44526  Anemone deltoidea Brad Klipfel 1973-7-1 134 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99371  Anemone deltoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 20 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  POM118715  Anemone deltoidea Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC160913  Anemone deltoidea J. P. Tracy 1906-5-20 2467 Humboldt vicinity of Eureka (near Cutten and MacDonald Tract) 0 Comment
  UCSB17330  Anemone deltoidea Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  HSC56311  Angelica arguta Overton, Butler 1979-8-2 12641 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC21444  Angelica genuflexa D. E. Anderson 1961-9-30 1852 Humboldt Blue Lake Comment
  UC1197384  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  UC582654  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC582660  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  UC642263  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  HSC71412  Angelica hendersonii J. M. DiTomaso 1980-6-7 1567 Humboldt Elkshead, N of Trinidad. Comment
  JEPS14106  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  RSA21186  Angelica hendersonii C. B. Wolf 1937-8-11 9145 Humboldt 1/2 mile east of Alton. 21 Comment
  CHSC68551  Angelica lucida Vernon H. Oswald 1997-4-29 8354 Humboldt Humboldt Bay NWR, Hookton Slough Trail along levee along the south side of Hookton Sough. 0 Comment
  UC1051577  Angelica tomentosa Joseph P. Tracy 1948-9-5 18185 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1524 Comment
  CAS-BOT-BC271496  Anisocarpus madioides Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC271500  Anisocarpus madioides A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  HSC5993  Anisocarpus madioides Francis Winter 1960-4-24 Humboldt 1 mi. W of Hoopa on Bair Rd. 305 Comment
  HSC33171  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  HSC103785  Anthemis cotula M. Mesler, K. A. Wayman 2015-8-4 1646 Humboldt Trail between Mill Creek Lakes trail head and Andy's Camp 1633 Comment
  CAS-BOT-BC137781  Anthoxanthum Doris Kildale 1931-5-10 10557 Humboldt Snow Camp. Comment
  HSC5263  Anthoxanthum occidentale John Warner Hosking 1966-8-5 Humboldt Fickle Hill Rd, 1 mi. E of Arcata. Comment
  CAS-BOT-BC137736  Anthoxanthum odoratum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC96543  Anthoxanthum odoratum Gordon Leppig 1997-8-3 647 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC62743  Anthriscus caucalis J. M. DiTomaso 1979-4-21 882 Humboldt Clam Beach Comment
  UC204117  Aphanes occidentalis Joseph P. Tracy 1918-5-1 4903 Humboldt Kneeland Prairie Northern Coast Ranges (towards McBrides) 762 Comment
  HSC57660  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-7-25 10835 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC44448  Aquilegia formosa Brad Klipfel 1975-5-30 657 Humboldt N of Horse Mtn. Comment
  UCSB1939  Aquilegia formosa Phillips, Priscilla 1958-6-7 Humboldt Just off Highway 101 on road to Big Lagoon Park Comment
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  UC1222662  Arabis glabra Joseph P. Tracy 1950-8-4 19261 Humboldt Grasshopper Peak Lookout, in Bull Creek State Park at the head of Canoe Creek Bull Creek State Park, Canoe Creek Comment
  UC492235  Arabis glabra Joseph P. Tracy 1932-7-11 10423 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  RSA21581  Aralia californica C. B. Wolf 1937-9-8 s.n. Humboldt North Coast Range, Bull Creek- Petrolia Road, 12 mi W of Redwood Highway 457 Comment
  RSA23646  Arbutus menziesii C. B. Wolf 1939-7-8 9523 Humboldt Wilder Ridge, 6/10 mi. north of Ettersburg on road to Honeydew. 244 Comment
  HSC55002  Arctostaphylos X cinerea Overton, Butler 1979-7-23 9522 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC98662  Arctostaphylos canescens subsp. canescens C. Witte 2007-5-17 28 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  CAS-BOT-BC23748  Arctostaphylos columbiana Walter Knight; Irja Knight 1988-9-5 6363 Humboldt Bald Hill Road about 21.5 miles from U.S. 101 en route to Hoopa. 929 Comment
  CAS-BOT-BC23751  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23773  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC23800  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt Vicinity of Trinidad 60 Comment
  CHSC39441  Arctostaphylos columbiana B. A. Stein 1981-11-1 568 Humboldt US Hwy 101, 2 miles north of Patrick Point. 60 Comment
  HSC101666  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 2011-4-23 13127 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC24825  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  HSC102137  Arctostaphylos glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1041 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA632810  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27777 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UCD52072  Arctostaphylos manzanita Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  CAS-BOT-BC24369  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC38831  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-6-27 2198 Humboldt Sweasey Lake - McClellan Mountain 792 Comment
  UC153967  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1909-10-7 3112 Humboldt Gans Prairie Northern Coast Ranges 609 Comment
  RSA46717  Arctostaphylos nevadensis Doris K. Kildale 1967-8-15 15335 Humboldt High Divide. Comment
  SBBG83937  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1180 Humboldt 23.2 rd mi E of US Hwy 101 on Bald Hills Rd (from Orick) Comment
  CAS-BOT-BC40072  Arctostaphylos nevadensis subsp. knightii C. Hart Merriam 1918-9-24 s.n. Humboldt Between Redwood and klamath canyons, Bald Hills. Comment
  CAS-BOT-BC46635  Arctostaphylos patula Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC33154  Arctostaphylos patula Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1242 Humboldt Horse Mtn. Area, SW of the microwave tower 1220 Comment
  UC1198668  Arctostaphylos patula Joseph P. Tracy 1942-6-23 17263 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  SD41455  Arctostaphylos uva-ursi Edith A. Purer 1932-7-26 4131 Humboldt Samoa Comment
  SEINET11989105  Arctostaphylos uva-ursi R. Gankin, Hildreth, W. R. 1967-1 1146 Humboldt 1.7 mi S of Samoa, on Humboldt Peninsula Comment
  SEINET2031082 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1901-1 1061 Humboldt Region about Humboldt Bay 0 Comment
  RSA2934  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1931-8-30 2374 Humboldt Samoa. 8 Comment
  UCD129124  Arctotheca calendula T. C. Fuller; G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  UCD129125  Arctotheca calendula T. C. Fuller; G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  SD42237  Arenaria douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie. 819 Comment
  OBI75994  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Crk 152 Comment
  CAS-BOT-BC64625  Armeria maritima subsp. californica W. R. Dudley 1899-6-1 723 Humboldt Eureka Peninsula. Comment
  HSC26887  Armeria maritima subsp. californica Clifton Raymond Chesbrough 1973-6-19 99 Humboldt 0.5 mi. N of College Cove, along the coast. Comment
  HSC98683  Arnica discoidea Cara Witte 2008-7-11 882 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC34161  Arnica discoidea Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC166070  Arnica discoidea Joseph P. Tracy 1911-7-11 3513 Humboldt hills near Supply Creek; Hoopa Valley 182 Comment
  HSC58301  Arnica diversifolia Overton, Butler 1979-8-2 12575 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS20976  Arnica latifolia Mrs. L. B. Kildale 1926-4-25 Humboldt Sugar Bowl Mt. Trinity River, Sugar Bowl Mt. 457 Comment
  CHSC33067  Artemisia douglasiana J. P. Smith; Advanced Plant Taxonomy Class 1971-10-9 5032 Humboldt Mad River above the Fish Hatchery. Comment
  HSC4719  Artemisia douglasiana Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UC535739  Artemisia dracunculus Eleanor Armstrong 1190 Humboldt Richardson Grove Comment
  HSC12354  Artemisia pycnocephala Steve Dorei 1970-10-7 146 Humboldt McKinleyville Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  SDSU6205  Artemisia suksdorfii D. F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on #36. 152 Comment
  RSA78412  Aruncus sylvester Philip A. Munz 1952-6-25 17840 Humboldt S of Grizzly Creek, N Fork of Trinity River, N of Helena. 1006 Comment
  HSC3268  Asarum caudatum D. A. Shally 1965-5-15 50 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  RSA183561  Asarum caudatum R. D. Zortman 1963-4-14 18 Humboldt 5 miles NE of Arcata, south of the Mad River, off Warren Ck. Rd. 91 Comment
  CAS-BOT-BC400535  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  UC494106  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  CAS-BOT-BC400619  Asarum hartwegii H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC63150  Asarum hartwegii M. A. Baker 1979-6-28 950 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek Comment
  SEINET12097904  Asarum hartwegii H. P. Chandler 1901-1 1478 Humboldt Klamath River 396 Comment
  HSC63224  Asclepias cordifolia M. A. Baker 1978-5-6 489 Humboldt 2 km. S of Weitchpec Comment
  UC1173689  Asclepias fascicularis Joseph P. Tracy 1939-7-16 16349 Humboldt Garberville 152 Comment
  HSC98022  Asclepias speciosa Cara Witte 2007-7-3 406 Humboldt White Oak Opening. 1242 Comment
  UC449996  Asclepias speciosa Mrs. M. H. Manning 1900-6 Humboldt Hupa Valley Comment
  CAS-BOT-BC65940  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC1053  Aspidotis densa Elrid H. Spinas 1948-5-22 41 Humboldt Horse Mtn. Comment
  HSC67193  Aspidotis densa Thomas W. Nelson 1980-6-10 5418 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  UC162774  Aspidotis densa Joseph P. Tracy 1911-7-6 3354 Humboldt along rd between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC44047  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-1 3546 Humboldt On Ridge N of Bear Cr. 100 m W of Rd. 1S07 1555 Comment
  UC302329  Aspidotis densa Charlotte M. Wilder 1912-10-1 Humboldt ca. 6 mi above Kuntz P.O. (Upper Van Duzen River) 914 Comment
  RSA20814  Aster chilensis C. B. Wolf 1937-9-9 9312 Humboldt N Coast Range, Wildcat ridge, 6.3 miles S of Ferndale. 305 Comment
  RSA104885  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  UC502991 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten & Pierce Ranch) 762 Comment
  UC1199092  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1930-7-21 8891 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  JEPS118177  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  UC1199093  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  HSC3824  Asyneuma prenanthoides D. E. Anderson 1962-7-17 2273 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC48318  Asyneuma prenanthoides Brad Klipfel 1973-8-3 309 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  OBI6248  Athyrium filix-femina Robert J. Rodin 1969-8-16 8369 Humboldt Near Carlotta, near Van Duzan River Comment
  RSA413349  Athyrium filix-femina subsp. cyclosorum R. Whittaker, W. A. Niering 1963-6-14 491 Humboldt Humboldt Redwoods, Weott Comment
  JEPS35140  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  UC197924  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC26349  Atriplex patula T. O. Osborne 1970-6-19 74 Humboldt Flat-Iron Rock, 3/4 mi. NW Trinidad Light. Comment
  HSC69756  Atriplex prostrata Thomas W. Nelson 1977-9-22 3751 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  HSC47798  Avena barbata Michael A. Watkins 1978-6-10 4 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC181262  Avena barbata Joseph P. Tracy 1913-6-13 4114 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UCD56151  Avena barbata A. H. Murphy 1951-2-28 5 Humboldt South of Petrolia. Comment
  HSC933  Azolla microphylla H. E. Parks 1925-6-24 2763 Humboldt Eureka, Comment
  RSA46906  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Hill 30 Comment
  UC30349  Baccharis pilularis C. C. Marshall 1888-1-1 Humboldt Arcata Comment
  HSC67009  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-9 4992 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  SEINET7003036  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  POM36319  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1909-4-14 635 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  HSC39056  Barbarea orthoceras Thomas W. Nelson, Jane P. Nelson 1976-5-31 2642 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  UC1198288  Barbarea orthoceras Joseph P. Tracy 1913-4-13 4037 Humboldt on a branch of Ryans Slough about 3 miles East of Eureka 152 Comment
  HSC39161  Bellis perennis D. E. Anderson, J. P. Smith 1971-6-28 - 1243 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC5190  Bellis perennis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  UC13491  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC102084  Bistorta bistortoides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 988 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98997  Blechnum spicant Cara Witte 2008-7-28 959 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1641 Comment
  UC1222663  Boechera pauciflora Joseph P. Tracy 1950-6-15 18794 Humboldt 7 mi n Harris (Jenk's Ranch); Mail Ridge Comment
  CAS-BOT-BC14301  Boechera platysperma Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1676 Comment
  RSA167245  Boisduvalia densiflora Joseph P. Tracy 1950-6-18 18843 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  SEINET12188876  Boisduvalia densiflora J. P. Tracy 1950-1 18843 Humboldt Cape Mendocino, S of point of the Cape, Davis Creek 30 Comment
  RSA465618  Boisduvalia densiflora var. densiflora H. M. Pollard 1948-8-12 s.n. Humboldt Near Orleans. Comment
  POM256472  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16009 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  POM256473  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16004 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 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
  UC1198285  Brassica nigra Joseph P. Tracy 1933-8-22 12974 Humboldt Northern Coast Ranges, Eureka. 0 Comment
  CAS-BOT-BC106286  Brickellia californica L. R. Abrams 1927-8-27 12049 Humboldt Rocky river bottom, Eel River, Richardson Grove Comment
  UC1145095  Briza maxima Joseph P. Tracy 1942-5-16 17358 Humboldt on bench 1 mi ne Garberville 304 Comment
  UCR84719  Briza maxima Kathy Harper 1992-5-14 s.n. Humboldt North Coast Range, State Hwy 36 just north of the south fork of the Van Duzen River 762 Comment
  CAS-BOT-BC145569  Briza minor Doris K. Kildale 1928-6-24 5265 Humboldt Redwood Creek at Berry's. Comment
  SEINET4182983 Image available Briza minor Franklin Fitz Humboldt Backyard weed patch in Arcata Comment
  SEINET3884856  Brodiaea elegans Jan G. Cooper 1976-8-2 6 Humboldt Along road to Horse Mountain Ski Area turnoff of Hwy 299.; 0 Comment
  SEINET200767  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt South Fork of Trinity River mountain slopes west of its mouth 305 Comment
  HSC32915  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson 1973-3-28 964 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC486504  Brodiaea stellaris Doris K. Kildale 1925-6-14 681 Humboldt Head of South Yager. bald hills 914 Comment
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  CAS-BOT-BC144345  Bromus Doris K. Kildale 1926-5-16 2009 Humboldt South Fork of Eel River. Miranda. Comment
  SEINET7297864 Image available Bromus breviaristatus Joseph P. Tracy 1950-1 18786 Humboldt Mail Ridge; North of Harris 2 miles 1036 Comment
  SEINET3921829  Bromus carinatus Thomas Nelson, Jane P. Nelson 1976-7-26 3037 Humboldt Along ridge northwest of Lassic Peak (Signal peak).; 0 1707 Comment
  SEINET201049 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain 1067 Comment
  UC37586  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-8 5351 Humboldt near Bell's Springs Comment
  UCD58496  Bromus carinatus var. marginatus A. H. Murphy 1951-6-25 77 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  UC212889  Bromus commutatus Joseph P. Tracy 1919-5-25 5138 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9279  Bromus diandrus H. S. Haskell 1966-4-23 23 Humboldt Near Samoa. Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  HSC103007  Bromus hordeaceus J. P. Smith 2014-5-23 13847 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 17 Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  UC1103362  Bromus hordeaceus Joseph P. Tracy 1939-4-29 16260 Humboldt Orleans 121 Comment
  UC1103363  Bromus hordeaceus Joseph P. Tracy 1933-6-11 12556 Humboldt 4 mi s of Dyerville (South Fork Eel River); North Coast Ranges, South Fork Eel River 60 Comment
  JEPS85494  Bromus laevipes L. R. Heckard with T. I. Chuang 1968-7-5 1984 Humboldt 4.3 mi n of Harris Road (Mail Ridge Road); Mail Ridge Road Comment
  UC37636  Bromus laevipes Harley P. Chandler June, 1901 1512 A Humboldt North Coast Ranges, Klamath River Klamath River; North Coast Ranges, Klamath River 426 Comment
  HSC9332  Bromus madritensis subsp. rubens C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 43 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  UCR45821  Bromus marginatus Kenneth Clark 1980-5-10 643 Humboldt Point Delgada Q., Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  POM160825B  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  HSC74075  Calamagrostis foliosa Joyce Walker 1980-8-21 Humboldt Comment
Read comments
May 26 2013
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  UC1103290  Calamagrostis koelerioides Joseph P. Tracy 1934-7-18 13408 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1131347  Calamagrostis nutkaensis H. S. Yates 1936-6-16 5681 Humboldt 1 mi ne Samoa; Eureka Quadrangle Comment
  HSC62828  Callitriche stagnalis J. M. DiTomaso 1979-4-21 888 Humboldt Fresh water creek at Clam Beach, 9 mi. N of Arcata. Comment
  HSC58002  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11787 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCR84791  Calochortus amabilis Kathy Harper 1992-5-14 s.n. Humboldt S-facing road embankment on Hwy 254 (parallel to Hwy 101), where road follows S fork of Eel River, c. 1 mi north of Phillipsville 91 Comment
  CAS-BOT-BC488458  Calochortus amabilis V. Rattan 1882-6-1 s.n. Humboldt Humboldt County Comment
  HSC15345  Calochortus tolmiei Class 1937-4-29 Humboldt Miranda Comment
  UC1537208  Calochortus tolmiei Gordon H. True Jr. 1936-5-11 456 Humboldt 12 mi w Miranda; Elk Ridge 457 Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  HSC65477  Calypso bulbosa M. A. Baker 1980-6-7 1800 Humboldt Near Brush Mtn. 1128 Comment
  UC4379  Calypso bulbosa Harley P. Chandler June, 1901 1280 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 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
  HSC38746  Calypso bulbosa var. occidentalis J. D. Ackerman 1976-4-27 754 Humboldt 10 mi. E of Blue Lake on road to Maple Creek Comment
  HSC102120  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1024 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98759  Calyptridium monospermum Cara Witte 2008-7-2 815 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC74405  Calyptridium umbellatum Gail Newton 1980-8-10 2017 Humboldt Near Blake Mtn. 1798 Comment
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC98837  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-30 967 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  UC1197885  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1928-7-7 16028 Humboldt Horse Mountain 1432 Comment
  UC23151  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1418 Humboldt Klamath River , Klamath River (North Coast Ranges) 304 Comment
  UC176994  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1912-8-3 3974 Humboldt Valley Van Duzen River (opposite Buck Mountain, Northern Coast Ranges); Northern Coast Ranges, Valley of Van Duzen River, Buck Mount 762 Comment
  SEINET12343673  Calystegia purpurata J. P. Tracy 1950-6-8 18769 Humboldt Near Petrolia, 2 mi down river Comment
  JEPS98261  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-11 1579 Humboldt W shoulder of south G street, about 75 m S of the City of Arcata Corporation Yard entrance Arcata 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
  UC153985  Calystegia soldanella J. P. Tracy 1901-8-7 1274 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); , opp. Eureka Comment
  SEINET12330004  Calystegia soldanella F. H. Utech 1986-1 86 -402 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  UC421786  Camassia quamash P. E. Goddard 1906-6 691 Humboldt Lasseck Peak Comment
  UC175286  Camassia quamash subsp. quamash Joseph P. Tracy 1913-6-17 4152 Humboldt Burr Valley on nw slope of Buck Mountain Burr Valley; Northern Coast Ranges, Buck Mountain, Burr Valley 1066 Comment
  UCR143291  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  HSC16464  Camissonia strigulosa Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
Read comments
Dec 14 2019
  CAS-BOT-BC160235  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Carl B. Wolf 1927-8-29 1221 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  RSA456172  Campanula prenanthoides Anstruther Davidson 1918-07 3350 Humboldt Eel River. Comment
  SEINET10462962  Campanula prenanthoides Overton 1979-7-23 OVERTON 9491 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1280 Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  SEINET10462961  Campanula prenanthoides Philip A. Munz 1936-8-10 Munz 14338 Humboldt Dry roadside, Lottle Van Duzen River, 15 miles east of Bridgeville Comment
  SEINET10462963  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt Wooley Creek Comment
  UC719785  Campanula prenanthoides Rogers McVaugh 1941-8-3 6214 Humboldt roadside bank 3.5 mi s Garberville Comment
  UC34826  Campanula scouleri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  SEINET10463703  Campanula scouleri Baker 1947-8-10 Baker 11901 Humboldt 15 mi NE of Hoopa near end of Forest Rd. Fir forest. 1372 Comment
  UC160970  Capsella bursa-pastoris Joseph P. Tracy 1911-5-21 3186 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC6618  Capsella bursa-pastoris David K. Smith 1968-2-3 3 Humboldt Crannell Rd. past the bridge Comment
  HSC6629  Capsella bursa-pastoris S. J. Roberts 1965-4-8 11 Humboldt 0.5 mi. S of junction of Alliance Rd. and Hwy. 101 Comment
  HSC6692  Cardamine californica D. E. Anderson 1962-3-18 1941 Humboldt Jacoby Creek Comment
  LA204275  Cardamine californica Victor Duran; 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville Comment
  CAS-BOT-BC37217  Cardamine hirsuta M. S. Jussel 1931-5-2 s.n. Humboldt 8 miles north of Garberville. Comment
  HSC64792  Cardamine oligosperma J. P. Smith 1971-10-9 4997 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS53297  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt from w boundary Park to Grasshopper Peak Road (Squaw Peak Road) (n side creek, Bull Creek flat, along Bull Creek, Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River, Bull Cr Comment
  UC1222954  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt toward Hungry Hollow Angel's Ranch; Bald Mountain, Hungry Hollow Comment
  UC1222955  Carduus tenuiflorus Joseph P. Tracy 1950-6-8 18740 Humboldt on s side of Cape Ridge; Bear River, Capetown, Cape Ridge 30 Comment
  RSA167248  Carduus tenuiflorus Joseph P. Tracy 1947-6-8 17703 Humboldt 0.5 mile west of town Comment
  HSC97229  Carex abrupta Kiera A. Freeman, Heather J. Perry 2007-6-13 10 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  RSA34051  Carex angustata A. A. Heller 1923-7-10 s.n. Humboldt Eel River between Scotia and Pepperwood. Comment
  CAS-BOT-BC18001  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  HSC70474  Carex aquatilis var. dives J. P. Tracy 1912-6-16 3702 Humboldt Hookton, around Humboldt Bay 0 Comment
  CAS-BOT-BC18010  Carex arcta Joseph Prince Tracy 1937-8-12 15645 Humboldt Snow Camp. 1402 Comment
  HSC63285  Carex bolanderi M. A. Baker 1979-6-29 965 Humboldt Hopkin's Creek. 760 Comment
  UC562429  Carex bolanderi Joseph P. Tracy 1936-5-29 14823 Humboldt French Camp Ridge 1066 Comment
  HSC44058  Carex bolanderi Thomas W. Nelson, James Nelson 1976-7-28 3076 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  UC1103102  Carex bolanderi Joseph P. Tracy 1926-6-6 7574 Humboldt Hoopa Mountain, near summit on road W from Hoopa to Bair's 1066 Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  CAS-BOT-BC110194  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  JEPS25962  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  RSA337439  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-7 35197 Humboldt Big Lagoon, south end. 2 Comment
  UC249736  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  HSC103329  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7116 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  JEPS26000  Carex densa Joseph P. Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1103103  Carex deweyana subsp. leptopoda Joseph P. Tracy 1923-6-20 6309 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CAS-BOT-BC20077  Carex echinata Joseph Prince Tracy 1932-7-14 10567 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  UC562713  Carex globosa Joseph P. Tracy 1929-6-3 8605 Humboldt Mouth of East Fork Northern Coast Ranges, Willow Creek Canyon 487 Comment
  JEPS25963  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Coast Ranges. Phillipsville, facing South Fork of Eel River Comment
  UC1116268  Carex gynodynama Joseph P. Tracy 1942-6-15 17127 Humboldt Englewood, Natural Prairie, near Redcrest Resort. Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  CAS-BOT-BC20462  Carex harfordii Joseph Prince Tracy 1936-6-5 14858 Humboldt Fickle Hill. 6 miles SE of Arcata. 579 Comment
  CAS-BOT-BC22313  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  SEINET8068029 Image available Carex harfordii A. L. Hipp 1999-1 438 Humboldt Phillipsville-Edge of 101 (Redwood Hwy), big E-turn just S. of the Miranda exit. Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  HSC103361  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8597 Humboldt At trailhead and along trail to Grogans Hole 610 Comment
  HSC98934  Carex laeviculmis Cara Witte 2007-7-11 480 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  SEINET2430055  Carex laeviculmis Joseph P. Tracy 1929-7-4 8607 Humboldt French Camp Ridge 1070 Comment
  CAS-BOT-BC31587  Carex luzulina var. luzulina Joseph Prince Tracy 1932-7-14 10560 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  UC1982417  Carex mariposana Barbara Wilson, Richard Brainerd, Susan Erwin, Christine Jordan and Mike Friend 2003-6-20 10950 Humboldt Sundew Meadow on South Fork Mountain, on Shasta-Trinity National Forest road 3N32. Comment
  HSC39228  Carex mendocinensis D. E. Anderson 1971-7-6 - 1284 Humboldt Horse Mtn. Comment
  UC562261  Carex multicaulis Joseph P. Tracy 1935-6-23 13996 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  CAS-BOT-BC32135  Carex multicaulis George Ledyard Stebbins; J. P. Tracy 1942-6-2 3480 Humboldt Head of Yager Creek near Yager, rich soil of moist woods. Comment
  CHSC2106  Carex obnupta M. Anthony 1937-5-15 Humboldt Humboldt State College. Comment
  JEPS94284  Carex obnupta Vernon Oswald and Lowell Ahart 1997-9-4 8856 Humboldt Samoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from the ocean North Spit; Samoa Dunes Recreation Area, North Spit Comment
  SDSU11682  Carex obnupta D. F. Howe 1961-8-1 Humboldt 3 miles north of Arcata on #101 Comment
  CDA33127  Carex obnupta E. C. Whitney 1961-4-6 Humboldt Stone Lagoon; in drainage basin. 0 Comment
  CAS-BOT-BC119263  Carex ovalis Joseph Prince Tracy 1937-8-7 15617 Humboldt Murphy Ridge on Bald Mt. 914 Comment
  JEPS79851  Carex pachycarpa Joseph P. Tracy 1932-7-11 10411 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  SEINET8989726 Image available Carex pachystachya A. L. Hipp 1999-1 443 Humboldt Whitlow - 10.2 mi from intersection of 101 and Elk Creek Road on Dyerville Loop Road. Comment
  UC562644  Carex pachystachya Joseph P. Tracy Jul 16 1930-Jul 19 1930 8984 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC48038  Carex pachystachya D. H. Norris 1972-6-26 23008 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  SEINET10949620  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13936 Humboldt Eureka. In woods. Comment
  JEPS80015  Carex subbracteata Joseph P. Tracy 1925-7-5 7165 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC562656  Carex subfusca Joseph P. Tracy 1935-7-27 14296 Humboldt McKay Prairie Trinity Summit 1584 Comment
  JEPS79866  Carex tumulicola Joseph P. Tracy 1916-6-19 4712 Humboldt Laribee Creek at Bosworth's; Northern Coast Ranges, Laribee Creek 457 Comment
  RSA91641  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt Grassy open places at Redway. Vicinity of Garberville. 122 Comment
  UC1103117  Carex tumulicola Joseph P. Tracy 1919-5-31 5153 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1561802  Carex tumulicola Barbara Ertter with Thomas J. Delendick 1987-5-16 6926 Humboldt ca. 15 air mi e Arcata (on n side of road, Vista Point just w of Berry Summit on Hwy. 299) 914 Comment
  CAS-BOT-BC115544  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  JEPS79867  Carex unilateralis Joseph P. Tracy 1933-6-9 12539 Humboldt Fortuna North Coast Ranges, Fortuna 18 Comment
  SEINET10751219  Carex unilateralis Joseph P. Tracy 1930-6-15 Tracy 8756 Humboldt Dobbyn Creek, bordering a pond. 152 Comment
  HSC26372  Carpobrotus chilensis T. O. Osborne 1970-9-16 37 Humboldt Trinidad Bay, Prisoner Rock Comment
  UCD129942  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  POM283642  Castilleja Lyman Benson 1929-7-19 1852 Humboldt Mouth of Matole [Mattole] River. Comment
  UC179946  Castilleja affinis subsp. affinis Joseph P. Tracy 1914-5-14 4434 Humboldt Fort Seward; North Coast Ranges 121 Comment
  HSC45088  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 24 Comment
  UC902251  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 A Humboldt Big Lagoon 152 Comment
  RSA273315  Castilleja ambigua subsp. humboldtiensis J. D. Ackerman 1975-6-10 462 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  HSC64182  Castilleja applegatei subsp. pinetorum J. O. Sawyer, M. A. Ericksen 1979-6-23 3393 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1222836  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1951-6-26 19587 Humboldt n side Board Camp Mountain (at extreme head of Redwood Creek); Redwood Creek 1541 Comment
  CAS-BOT-BC255524  Castilleja applegatei var. pinetorum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CHSC32837  Castilleja attenuata Lora L. Anderson 1981-4-26 18 Humboldt Ca. 1.5 mi ne of Redwood creek 4.5 mi n of 299 w 18 mi ne of Arcata. 228 Comment
  HSC35027  Castilleja attenuata Thomas W. Nelson, James Nelson 1975-5-24 1847 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET13737390  Castilleja attenuata J. P. Tracy 1911-5-30 3198 Humboldt Eureka. Comment
  HSC95078  Castilleja exserta subsp. latifolia Andrea Pickart 2002-6-4 114 Humboldt N Spit Dunes 0 Comment
  HSC20841  Castilleja exserta subsp. latifolia Rollin Sparrowe 1962-5-7 20 Humboldt Comment
  RSA167244  Castilleja litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt Bear River Ridge, south slope near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  RSA221712  Castilleja litoralis Noel Holmgren, Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 miles west of Ferndale. Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC35593  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2004 Humboldt French Camp, Bald Hills. Comment
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  HSC103246  Castilleja pruinosa Lisa D. Hoover 1996-6-12 145 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mtn. Quad, Horse Mtn. 1463 Comment
  HSC49985  Castilleja pruinosa M. A. Baker 1979-6-7 785 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC1502111  Ceanothus R. Sutherland 1976-10-30 1 .30-76 Humboldt Pt. Delgada Quad. 624 Comment
  HSC101667  Ceanothus gloriosus var. exaltatus J. P. Smith, J. O. Sawyer 2011-4-23 13128 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC50046  Ceanothus incanus Doris K. Kildale 1928-5-19 5137 Humboldt Chalk Mountain Comment
  HSC38377  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8054 Humboldt Nadelos Recreation site, King Range Conservation Area Comment
  SBBG116553  Ceanothus incanus D. H. Wilken 2003-7-22 16175 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  UC176965  Ceanothus integerrimus Joseph P. Tracy 1913-6-21 4249 Humboldt Dinsmore's Ranch Valley of Van Duzen River, Northern Coast Ranges (opposite Buck Mt.,) 762 Comment
  UC33626  Ceanothus integerrimus Chesnut and Drew 1888-7-25 Humboldt Comment
  HSC97627  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  HSC97918  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-14 276 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  BLMAR174  Ceanothus oliganthus subsp. sorediatus Donald Hazlett 1994-6-7 174 Humboldt King range, Tallus slope Near horse Mt. road 670 Comment
  HSC36673  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 7 .8575 Humboldt Mattole Valley, 3 mi W of Honeydew 107 Comment
  HSC37083  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 14 .8575 Humboldt Mattole Rd. 1.0 mi E of Petrolia, bank of Mattole River 67 Comment
  HSC37607  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 10 .11775 Humboldt Along county rd. 244 Comment
  POM282990  Ceanothus oliganthus var. sorediatus Lyman Benson 1929-7-19 1596 Humboldt Dyerville to Matole River. Comment
  UC1193306  Ceanothus parryi K. Cuff 1950-8-24 123 Humboldt 2 mi n Phillipsville; Quad. 29C1, n of Phillipsville 213 Comment
  HSC23286  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1309 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC33413  Ceanothus pumilus Thomas W. Nelson 1974-5-30 1350 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC55600  Ceanothus pumilus Overton, Butler 1979-7-23 9414 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC52985  Ceanothus thyrsiflorus L. R. Abrams; J. T. Benson 1924-5-17 10731 Humboldt One mile north of Trinidad Head Comment
  CAS-BOT-BC52994  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  HSC47489  Ceanothus thyrsiflorus Sheila Logan 1978-4-7 11 Humboldt 0.5 mi E of McKinleyville on Murray Rd. Comment
  RSA172183  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-2 19005 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SEINET13946096 Image available Ceanothus thyrsiflorus F. G. Meyer 1938-1 1404 Humboldt 30 mi N of Eureka Comment
  HSC37062  Ceanothus velutinus R. Sutherland 1975-5-30 1 .30575 Humboldt 320 Comment
  SEINET201062  Ceanothus velutinus J. P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC275283  Ceanothus velutinus Joseph P. Tracy 1923-10-28 6590 Humboldt Bald Mountain 762 Comment
  RSA34006  Centaurea melitensis J. Wendell Howe 1933-7-26 s.n. Humboldt Mad River near Blue Lake Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  SEINET11860764  Centaurea solstitialis J. P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek, Hoopa Valley 107 Comment
  UC153952  Centaurium davyi Joseph P. Tracy 1907-7-4 2585 Humboldt 0.5 mi n mouth of Little River; Northern Coast Ranges 15 Comment
  UC562309  Centaurium muehlenbergii Joseph P. Tracy 1931-8-9 9610 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  RSA185429  Centaurium muehlenbergii Clare B. Hardham 1965-08 12858 Humboldt South fork of Eel River. Comment
  UC429101  Cephalanthera austiniae P. E. Goddard 1906-6 693 Humboldt Blocksburg Comment
  HSC63884  Cephalanthera austiniae M. A. Baker 1979-6-27 919 Humboldt Comment
  HSC58133  Cerastium arvense Gilbert Muth 1979-8-1 12138 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1198319  Cerastium arvense Joseph P. Tracy 1927-5-15 8049 Humboldt ridge w. of Hoopa Valley (up Supply Creek); Supply Creek 304 Comment
  UC465826  Cerastium arvense Harley P. Chandler June, 1901 1354 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley, Hupa Indian Reservation 152 Comment
  HSC12544  Cerastium fontanum subsp. vulgare C. Kline 1970-11-9 63 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  HSC74273  Cerastium glomeratum M. A. Baker 1980-5-23 1381 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC388225  Cerastium glomeratum Alice Eastwood 1907-4-21 15 Humboldt Port Trinidad Comment
  HSC68022  Cerastium glomeratum J. P. Smith, Steve Selva 1970-6-30 4140 Humboldt Comment
  HSC2136  Cercis occidentalis Doris K. Kildale 1926-5-2 1909 Humboldt Willow Creek Comment
  HSC74573  Cercis occidentalis M. A. Baker 1980-5-17 1245 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC85657  Chamaecyparis lawsoniana G. A. Coleman 1901-7-25 s.n. Humboldt Near head of Supply Creek, Hoopa Indian Reservation Comment
  UC164837  Chamaesyce serpyllifolia Joseph P. Tracy 1911-7-9 3470 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  UC423060  Chamerion angustifolium subsp. circumvagum Chesnut and Drew 1888-7-15 Humboldt Arcata Comment
  HSC72962  Cheilanthes gracillima Gail Newton 1980-7-14 1485 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC99459  Cheilanthes gracillima K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 113 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
  HSC996  Cheilanthes gracillima D. E. Anderson 1965-4-24 3539 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  HSC99115  Cheilanthes gracillima Cara Witte 2008-9-27 1044 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1483 Comment
  RSA54128  Cheilanthes gracillima Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain 1829 Comment
  UC1299765  Cheilanthes gracillima Freed W. Hoffman 1949-7-15 3008 Humboldt e slope Mule slide (Mt Lassic Group a little s of Blue Ridge) Comment
  UC275479  Chenopodium ambrosioides Joseph P. Tracy 1925-11-1 7298 Humboldt Shively Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  JEPS59740  Chenopodium botrys Lincoln Constance 1934-5-27 690 Humboldt Dyerville bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  JEPS59734  Chenopodium pumilio W. L. Jepson 1932-7-26 16400 a Humboldt Bull Creek 106 Comment
  UC673036  Chenopodium pumilio Joseph P. Tracy 1931-10-12 9729 Humboldt Blue Slide Van Duzen River 91 Comment
  RSA44503  Chenopodium pumilio H. M. Pollard 1947-8-31 s.n. Humboldt Orleans Hotel grounds, Orleans. Comment
  CAS-BOT-BC451381  Chimaphila menziesii L. B. Kildale 1930-8-3 10363 Humboldt Chaparel Mt. at Bug Creek 914 Comment
  CAS-BOT-BC451497  Chimaphila umbellata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  UC1326269  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. n.e. Hoopa (near end of forest rd.) 1371 Comment
  RSA467017  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-7-31 237 Humboldt Orleans Mt. 1372 Comment
  CHSC19746  Chloris pycnothrix D. E. Anderson 1970-1-20 Humboldt In the Humboldt State College Greenhouses. Seed source: Ethiopia. Comment
  CAS-BOT-BC236916  Chloropyron maritimum subsp. palustre A. A. Heller 1924-7-21 13867 Humboldt Salt marsh at Eureka Comment
  HSC55104  Chrysolepis chrysophylla var. minor G. L. Clifton 1979-7-31 11845 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC526690  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC26641  Chrysosplenium glechomifolium Thomas W. Nelson 1971-5-19 443 Humboldt HSC Campus beside Jolly Giant Creek Comment
  UC906758  Cicendia quadrangularis Joseph P. Tracy 1942-5-16 17342 Humboldt Garberville 152 Comment
  UC1222141  Cicendia quadrangularis Joseph P. Tracy 1951-5-6 19397 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  UC154050  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  UC154254  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  UC505099  Circaea alpina subsp. pacifica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8927 Humboldt near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  JEPS59108  Cirsium arvense Lincoln Constance 1934-6-2 787 Humboldt to mouth of Bull Creek, and up Bull Creek Bull Creek road; South Fork Eel River, Bull Creek Region Comment
  NY370205  Cirsium arvense L. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  UCD130554  Cirsium arvense R. E. Nelson 1956-7-3 192 b Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  HSC39168  Cirsium brevistylum D. E. Anderson, J. P. Smith 1971-6-28 1235 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CDA1176  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  UC202737  Cirsium douglasii var. douglasii Chesnut and Drew 1888-7-30 Humboldt Grouse Creek Comment
  SEINET200852  Cirsium edule J. C. Fario Jr 1940-6-14 sn Humboldt Bear River Ridge 610 Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC175439  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 1/2 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  HSC5401  Cirsium occidentale var. venustum D. G. Hauger 1967-7-15 27 Humboldt On Lone Star Ranch 610 Comment
  CAS-BOT-BC285769  Cirsium vulgare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC668237  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  CAS-BOT-BC164181  Clarkia concinna Doris K. Kildale 1929-5-26 9153 Humboldt Klamath River at Orleans 152 Comment
  HSC16277  Clarkia concinna subsp. concinna J. E. Lankila 1962-5-6 13 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC64516  Clarkia concinna subsp. concinna J. P. Smith, Steve Selva 1970-6-14 3840 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UC183698  Clarkia davyi Joseph P. Tracy 1912-7-21 3772 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC172502  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-7-11 6028 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC144081  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3039 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  HSC43847  Clarkia purpurea subsp. viminea Maralyn O'Meara 1974-7-17 556 Humboldt Kneeland Comment
  HSC98078  Clarkia purpurea subsp. viminea Cara Witte 2007-7-3 401 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  RSA108224  Clarkia purpurea subsp. viminea Harlan Lewis, M. Lewis 1947-6-14 417 Humboldt Highway 36, 1.2 mile east of Van Duzen Public Camp Ground Comment
  CAS-BOT-BC439096  Claytonia cordifolia Harold E. Parks; Joseph P. Tracy 1949-6-25 11680 Humboldt Trinity Summit: at Box Camp 1463 Comment
  CAS-BOT-BC439123  Claytonia exigua subsp. exigua Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC67374  Claytonia exigua subsp. glauca Thomas W. Nelson, James Nelson 1980-6-10 5414 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  CAS-BOT-BC440095  Claytonia perfoliata subsp. perfoliata J. H. Thomas 1949-6-13 922 Humboldt Along Klamath River, about 1 mile north of town of Orleans. Comment
  HSC17734  Claytonia sibirica Harvey Doerksen 1962-5-4 1 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  UC672989  Claytonia sibirica Joseph P. Tracy 1933-7-11 12693 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC443898  Claytonia sibirica C. E. Etienne 1972-9-4 s.n. Humboldt Lumber road to Klamath River, ca 8 mi. inland and 1 mi. N of the Humboldt Co. line. 30 Comment
  CAS-BOT-BC443901  Claytonia sibirica Ira L. Wiggins 1957-6-20 14129 Humboldt East side of highway, Trinidad Comment
  HSC73383  Claytonia sibirica Robert Kirkpatrick, Doug Renwick 1981-4-24 161 Humboldt Jolly Giant Creek behind HSU Comment
  HSC91387  Claytonia sibirica Jeff Dunk, David Munger, Tallchief Comet 1987-2-24 Humboldt Arcata, NE of HSU field House to Jolly Giant Creek Comment
  RSA117678  Claytonia sibirica S. S. Tillett 1956-7-7 628 Humboldt Upper end of Pearch Creek Campground, Six Rivers National Forest Orelans. Comment
  UCD100884  Claytonia sibirica Joseph M. DiTomaso 1976-3-28 355 Humboldt Highway 299 near summit, 8 miles west of Willow Creek. Comment
  HSC78577  Claytonia washingtoniana C. E. Fellows 1970-4-18 258 Humboldt NE end of Big Lagoon, E side of Hwy. 101 Comment
  UC503039  Clematis ligusticifolia Joseph P. Tracy 1928-9-2 8495 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  UC30059  Clintonia uniflora Joseph Burtt Davy 1899-6-19 5656 Humboldt Hoopa Mountain Comment
  UC41802  Collinsia grandiflora W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  JEPS25057  Collinsia heterophylla Joseph P. Tracy 1927-5-8 7988 Humboldt Vicinity of Garberville 121 Comment
  HSC73177  Collinsia linearis M. A. Baker 1980-5-18 1335 Humboldt Near Black Mtn. 792 Comment
  UC902215  Collinsia linearis Joseph P. Tracy 1947-7-5 17790 Humboldt ridge w of Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  CAS-BOT-BC412799  Collinsia linearis David D. Keck 1948-7-2 5999 Humboldt Ridge east of Redwood Creek on road to Willow Creek. On US Route 299 609 Comment
  JEPS13757  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Horse Mtn 762 Comment
  JEPS6178  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt Grouse Mtn; North Coast Ranges 1524 Comment
  UC1196755  Collinsia linearis Joseph P. Tracy 1919-5-31 5155 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 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
  HSC48636  Collinsia parviflora Mark Flippo 1978-5-20 89 Humboldt USFS Rd. 8N10 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  UC176057  Collinsia rattanii Joseph P. Tracy 1913-6-17 4190 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC53963  Collomia heterophylla Griswold, Butler 1979-7-11 7017 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UCR111241  Collomia heterophylla H. E. Parks 1933-1 01152 Humboldt North Coast, Spruce Cove, Trinidad 76 Comment
  HSC97233  Collomia tracyi Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 6 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  JEPS26238  Collomia tracyi Joseph P. Tracy 1930-7-16 9046 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  JEPS6035  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1933-8-22 12991 Humboldt in salt marsh n of Eel River 3 Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  JEPS6805  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1939-8-16 16418 Humboldt Grouse Mountain 1524 Comment
  UC936240  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1947-8-24 17884 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  CAS-BOT-BC287184  Coreopsis tinctoria Henry M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Perch Creek, near Orleans Comment
  CAS-BOT-BC101150  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt fields at Bucksport, at Eureka 6 Comment
  JEPS15874  Corethrogyne filaginifolia Joseph P. Tracy 1928-5-20 8442 Humboldt Petrolia; Mattole Valley 60 Comment
  SEINET7836966 Image available Corethrogyne filaginifolia J. B. Davy 1899-6-30 6185 Humboldt Near Ferndale Comment
  CAS-BOT-BC32935  Corethrogyne filaginifolia var. californica Henry Nicholas Bolander 1867-6-1 s.n. Humboldt On the coast at Shelter Cove and at Fort Bragg Comment
  CAS-BOT-BC209752  Cornus glabrata Doris K. Kildale 1926-8-15 2535 Humboldt Hoopa Mountain 579 Comment
  UC205460  Cornus glabrata Joseph P. Tracy 1919-9-14 5210 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC212018  Cornus nuttallii Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CAS-BOT-BC212020  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt East fork of Eel River near Garberville Comment
  HSC41246  Cornus nuttallii Brad Klipfel 1974-5-27 393 Humboldt Near Horse Mtn. Comment
  CAS-BOT-BC212174  Cornus sericea Doris K. Kildale 1927-6-4 4164 Humboldt Scotia Bluffs 30 Comment
  UC1051594  Cornus sericea subsp. sericea Joseph P. Tracy 1948-9-2 18201 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  UC906747  Cornus sericea subsp. sericea Joseph P. Tracy 1947-6-26 17747 Humboldt forest near McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  UC249591  Cornus sessilis Joseph P. Tracy 1921-8-21 5945 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  RSA186851  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. Comment
  HSC98702  Corylus cornuta var. californica Cara Witte 2007-7-27 606 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1445 Comment
  HSC5433  Cotula coronopifolia W. F. Nickel 1965-5-12 Humboldt On H.S.C. campus behind the Biological Sciences building Comment
  CAS-BOT-BC290341  Crepis acuminata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  CAS-BOT-BC291481  Crepis capillaris E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  CAS-BOT-BC290907  Crepis setosa Henry M. Pollard 1947-8-21 s.n. Humboldt Between Orleans and Boyse [Boise] Creek Comment
  HSC46059  Crocosmia X crocosmiiflora Catherine Chin 1978-8-5 103 Humboldt Arcata, at A and 11th Sts. Comment
  UC175773  Cryptantha intermedia Joseph P. Tracy 1911-7-6 3335 Humboldt road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1222274  Cryptantha leiocarpa Joseph P. Tracy 1946-6-2 17552 Humboldt Fairhaven Samoa Peninsula Comment
  UC1239665  Cryptantha leiocarpa Joseph P. Tracy 1927-6-26 8212 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  UC175786  Cryptantha torreyana J. P. Tracy 1903-5-22 1879 Humboldt Alder Point Bridge Eel River 152 Comment
  UC562476  Cuscuta campestris Joseph P. Tracy 1925-8-2 7220 Humboldt Big Lagoon 3 Comment
  HSC104274  Cuscuta pacifica var. pacifica Samantha E. Andres 2016-5-29 16 Humboldt Salt Marsh Trail, Lanphere Dunes Unit 30 Comment
  UC35080  Cuscuta salina var. major Chesnut and Drew Aug 1888 Humboldt Eureka Comment
  UCD127353  Cyclospermum leptophyllum Joseph P. Tracy 1946-6-13 17613 Humboldt 5 miles east of Carlotta. 30 Comment
  HSC74112  Cynoglossum grande R. York 1980-5-23 634 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC190425  Cynosurus echinatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  UCR3545  Cyperus eragrostis David Whistler, H. M. Whistler 1964-7-29 640729- 2 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  UC668032  Cyperus eragrostis Joseph P. Tracy 1935-7-17 14099 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC7284  Cyperus strigosus D. E. Anderson 1963-9-21 2839 Humboldt 0.5 mi E of Willow Creek Comment
  POM160313  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain 1463 Comment
  CHSC19747  Cytisus scoparius Gary J. Stebbings 1970-2-2 1 Humboldt Along Big Lagoon Park road across from the store. Comment
  HSC14671  Cytisus scoparius Harvey Doerksen 1962-5-22 26 Humboldt .5 mi. E of Hwy. 299-101 junction. Comment
  HSC40373  Cytisus scoparius Linda M. Barker 1976-3-11 1322 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC189734  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  CAS-BOT-BC189746  Danthonia californica Doris K. Kildale 1928-7-1 5308 Humboldt French Camp - Bald Hills - Orick Martins Ferry road. Comment
  UC1103255  Danthonia californica Joseph P. Tracy 1926-7-5 7727 Humboldt Valley of South Yager Creek Comment
  UCD60514  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  RSA293102  Danthonia californica var. californica J. P. Smith 1977-7-3 9231 Humboldt Road to Fish lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 488 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1152020  Danthonia unispicata Joseph P. Tracy 1951-6-26 19571 Humboldt Snow Camp and Twin Lakes vicinity Comment
  UC1541540  Danthonia unispicata J. P. Tracy, H. E. Parks 1934-6-14 11028 Humboldt Horse Mountain 1371 Comment
  CHSC68776  Daucus pusillus Vernon Oswald 1997-6-5 8544 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy. 255, Orvil Wilson Memorial Off- road Vehicle Park opposite the junction of New Navy Base Rd. and Loncoln Ave. 6 Comment
  UC154246  Daucus pusillus Joseph P. Tracy 1909-8-1 3057 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1196317  Delphinium andersonii Joseph P. Tracy 1930-6-21 8778 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC467717  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5788 Humboldt Trinity Summit Comment
  HSC95837  Delphinium decorum subsp. tracyi Kevin Thomas 2004-4-26 14 Humboldt Titlow Hill Rd. Comment
  HSC97204  Delphinium decorum subsp. tracyi Kiera A. Freeman, Heather J. Perry 2007-6-13 8 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  POM172673  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley, on NW slope of Buck Mtn Comment
  HSC48947  Delphinium nudicaule M. A. Baker 1979-5-15 733 Humboldt Along old bed of Bluff Creek Comment
  HSC38707  Delphinium nuttallianum J. P. Smith 1976-5-29 8818 Humboldt Horse Mtn. 1402 Comment
  UC249645  Delphinium nuttallianum Joseph P. Tracy 1922-4-30 6029 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC121967  Delphinium trolliifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC160942  Delphinium trolliifolium Joseph P. Tracy Jul 27 1908-Jul 30 1908 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC24424  Delphinium trolliifolium R. Spellenberg 1965-6-14 1131 Humboldt 3.5 mi. S of Kneeland, 1.5 mi. N of junction with Barry Rd. Comment
  UC1222576  Delphinium trolliifolium Joseph P. Tracy 1950-6-8 18721 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge Comment
  UC1334522  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-23 17 Humboldt Comment
  UC9230  Delphinium trolliifolium Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5615 Humboldt near Acorn Comment
  UC984819  Delphinium trolliifolium A. M. Vollmer and L. Beane 1951-6-6 106 Humboldt on road between Orick and Weitchpec Comment
  HSC35449  Deschampsia cespitosa J. D. Ackerman 1975-8-2 607 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  CDA31675  Deschampsia elongata T. C. Fuller 1962-8-6 9363 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  HSC26662  Deschampsia elongata J. P. Smith, Steve Selva 1970-6-14 3830 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9613  Deschampsia elongata R. D. Rogers 1964-5-2 32 Humboldt Janes Creek area, 1 mi. N of Arcata, logging road. Comment
  JEPS75412  Deschampsia elongata W. L. Jepson 1932-7-24 16381 Humboldt 91 Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  HSC8352  Dicentra formosa Harvey Doerksen 1962-5-4 4 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  UC1196302  Dicentra formosa Joseph P. Tracy 1947-8-24 17914 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  HSC12427  Dicentra formosa Gary J. Stebbins 1970-4-19 72 Humboldt Along road to Fieldbrook 2.8 mi. N of Hwy. 299 Comment
  HSC98559  Dicentra formosa Cara Witte 2008-6-18 738 Humboldt Approximately 1.5 miles north-west of Forest Service Rd. 6N01B. On an unmarked road on right hand side. 1433 Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  HSC99360  Dicentra formosa subsp. formosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 9 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS9734  Dicentra pauciflora Joseph P. Tracy 1933-7-16 12776 Humboldt near McKay Camp (South Fork Mountain); North Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC209196  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka 60 Comment
  SEINET200955 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1942-6-15 17153 Humboldt Moist place on grassy bench 1/2 miles NE of Garberville Comment
  SEINET202038 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie Comment
  SEINET7293094 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1918-1 5014 Humboldt White North Valley 305 Comment
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Apr 22 2016
  JEPS64174  Dichelostemma capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  SEINET12058487  Dichelostemma capitatum F. H. Utech 1988-5-23 88 -291 Humboldt 1.5 mi N of Bridgeville on Road from Bridgeville to Kneeland, along Brown Creek 350 Comment
  UC1198170  Dichelostemma capitatum Joseph P. Tracy 1933-6-18 12607 Humboldt e of Redwood Creek (on Trinity Highway); Berry's Mt. 762 Comment
  HSC3000  Dichelostemma capitatum subsp. capitatum Paul Shields May 1955 Humboldt Horse Mountain Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC38095  Dichelostemma congestum Thomas W. Nelson, James Nelson 1976-5-30 2616 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1198161  Dichelostemma multiflorum Joseph P. Tracy 1911-7-6 3346 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC30352  Digitalis purpurea E. A. Wise 1 Humboldt Base of Cypress Hall Dormitory, Humboldt State University Comment
  SEINET200655 Image available Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River near slate Creek below Orleans 8 miles. Roadside. 122 Comment
  CAS-BOT-BC150340  Diplacus aurantiacus Doris K. Kildale 1925-6-21 726 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  CAS-BOT-BC150342  Diplacus aurantiacus C. L. Hitchcock; J. S. Martin 1939-7-14 5439 Humboldt At Shelter Cove Comment
  CAS-BOT-BC150349  Diplacus aurantiacus L. R. Abrams 1916-7-18 6141 Humboldt At Trinidad Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  CAS-BOT-BC153239  Diplacus kelloggii Doris K. Kildale 1927-5-20 3228 Humboldt Bug Creek 792 Comment
  UC1052467  Disporum smithii H. E. and S. T. Parks 1952-5 24452 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove 60 Comment
  UC1197653  Disporum smithii J. P. Tracy 1906-4-22 2417 Humboldt immediate vicinity of Eureka 0 Comment
  RSA367637  Disporum smithii Anstruther Davidson 1927-5-27 114 Humboldt Redwood Hwy, Orick. Comment
  RSA68743  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Bull Creek, at South Fork of the Eel River Comment
  UC34954  Downingia elegans Chesnut and Drew 1888-7-10 Humboldt near Jarnigan's Comment
  UCSB26681  Drosera rotundifolia Havlik, Neil 1968-8-21 Humboldt South end of Big Lagoon; north of Trinidad Comment
  CAS-BOT-BC159611  Drymocallis glandulosa var. glandulosa Carl B. Wolf 1937-6-19 8908 Humboldt Van Duzen River at Dunns Mill, 5 mi. below Bridgeville 91 Comment
  JEPS35138  Dryopteris expansa Milo S. Baker 1923-7-16 20 Humboldt 4 mi se Eureka Comment
  CAS-BOT-BC428296  Dudleya farinosa A. A. Heller 1924-7-25 13886 Humboldt At Agate Beach near Trinidad. Comment
  HSC97541  Dysphania ambrosioides Ivy Watson 2008-9-17 15 Humboldt Mad River Park on W End Rd., near pumping station 8 Comment
  HSC12028  Dysphania ambrosioides D. Santana 1970-10-18 77 Humboldt McKinleyville, Murray Rd. Comment
  UCD60874  Echinochloa crus-galli H. E. Parks Date Unknown 24213 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC113437  Eleocharis acicularis Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Pond near Harley place. Comment
  CAS-BOT-BC113644  Eleocharis acicularis Doris K. Kildale 1925-8-17 1268 Humboldt Trinity Summit. Water Dog Lake. 1828 Comment
  UC666881  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried bed of pond 60 Comment
  RSA275279  Eleocharis acicularis var. acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Pond above Alder Springs 1585 Comment
  HSC7320  Eleocharis macrostachya C. B. Wolf 1927-8-22 793 Humboldt Big Lagoon Comment
  UC666919  Eleocharis suksdorfiana Joseph P. Tracy 1935-7-27 14305 Humboldt McKay Prairie, open places Trinity Summit 1584 Comment
  HSC62979  Elodea canadensis David Wheeler 1979-5-16 113 Humboldt Humboldt State University Campus, stream just below Fern Lake, E of the handball courts. Comment
  SEINET201037  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Moutain, open glades along summit near Blake lookout. Comment
  UC526784  Elymus X hansenii Joseph P. Tracy Jul 16 1930-Jul 19 1930 9054 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC38635  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1260 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  RSA10127  Elymus elymoides Joseph P. Tracy 1930-7-19 8955 Humboldt South Fork Mountain; barren rocky places along summit near Blake Lookout. 1707 Comment
  HSC64155  Elymus glaucus J. O. Sawyer, K. A. Sawyer 1979-6-24 3399 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC186000  Elymus glaucus Joseph P. Tracy 1912-6-9 3659 Humboldt Alton Northern Coast Region 30 Comment
  UC526797  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD62266  Elymus glaucus August L. Hormay 1932-5-12 Humboldt Bull Creek Road. Comment
  HSC9727  Elymus mollis subsp. mollis R. T. Forester 1963-4-30 41 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC70693  Elymus multisetus Gail Newton 1980-7-15 1560 Humboldt Near Sims Mtn. 1311 Comment
  HSC72983  Elymus multisetus M. A. Baker 1980-7-11 2785 Humboldt Near Red Mtn. 1341 Comment
  HSC97932  Elymus multisetus Cara Witte 2007-6-14 271 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  RSA293103  Elymus multisetus J. P. Smith 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 549 Comment
  UCD62528  Elymus repens R. Tofsrud 1949-7-1 Humboldt Ferndale. Comment
  UCD62651  Elymus trachycaulus Les Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. 609 Comment
  SBBG52991  Epilobium J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  RSA167259  Epilobium brachycarpum Joseph P. Tracy 1950-9-10 19356 Humboldt Bear River Ridge 610 Comment
  CDA38060  Epilobium brachycarpum T. C. Fuller 1962-8-6 9361 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  HSC34784  Epilobium canum subsp. canum R. E. Cooksey Sep 1972 58 Humboldt On Ave. of Giants 30 Comment
  SBBG60143  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River Comment
  UC1196951  Epilobium canum subsp. latifolium Joseph P. Tracy 1920-8-15 5355 Humboldt Rock Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC54703  Epilobium ciliatum Overton, Butler 1979-7-26 10026 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC55141  Epilobium ciliatum G. L. Clifton, Griswold 1979-8-1 12024 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1197010  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-9-19 3098 Humboldt opp. Eureka (ocean beach); Samoa Comment
  UC146137  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-7-4 3004 Humboldt Immediate vicinity of Eureka 0 Comment
  UC169921  Epilobium ciliatum subsp. ciliatum Harley P. Chandler June, 1901 1530 Humboldt Klamath River North Coast Ranges 304 Comment
  UC722075  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock and J. S. Martin 1939-7-14 5441 Humboldt 7 mi e Shelter Cove 243 Comment
  HSC76625  Epilobium ciliatum subsp. glandulosum Teresa Prendusi 1981-7-24 481 Humboldt Near Whiteys Peak 1585 Comment
  RSA181873  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 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
  HSC12701  Epilobium ciliatum subsp. watsonii Jana Kattenhorn 1970-10-28 155 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC16346  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-8-25 1742 Humboldt 1.5 mi. S of Trinidad Comment
  HSC98657  Epilobium densiflorum Cara Witte 2007-7-3 408 Humboldt White Oak Opening. 1242 Comment
  JEPS31516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  UC161070  Epilobium densiflorum Joseph P. Tracy 1911-7-8 3475 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC505125  Epilobium densiflorum Joseph P. Tracy 1932-8-21 10361 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower w foothills of mt.) 457 Comment
  UC1198503  Epilobium densiflorum Joseph P. Tracy 1911-7-11 3509 Humboldt mouth of Supply Creek Northern Coast Ranges, Hoopa Valley 152 Comment
  HSC55207  Epilobium glaberrimum Walter Overton 1979-8-1 12326 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC102565  Epilobium glaberrimum subsp. glaberrimum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1552 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS31498  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC562513  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt near Ranger Station (along streamlet); Trinity Summit 1828 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  HSC49630  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3401 Humboldt Mckeown Ranch N of Dinsmore, Mad River 610 Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC98903  Equisetum laevigatum Cara Witte 2007-7-25 580 Humboldt Forest Service Road 5N10. Approximately 2 miles south from intersection with Forest Service Road 5N41. 1290 Comment
  RSA53858  Equisetum laevigatum Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce Creek Orleans region Comment
  HSC881  Equisetum telmateia subsp. braunii C. B. Wolf 1927-8-28 1181 Humboldt On rd. between Eureka and Arcata Comment
  RSA23654  Equisetum telmateia var. braunii C. B. Wolf 1939-7-6 9515 Humboldt Along Larabee Creek, 5.8 mi below Blocksburg on road to Bridgeville. Comment
  SEINET10834153  Equisetum telmateia var. braunii Mary Susan Taylor 1977-8-5 Taylor 1430 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  POM161049  Eragrostis hypnoides Joseph P. Tracy 1920-8-15 5367 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  HSC68152  Erechtites glomeratus J. O. Sawyer, J. P. Smith 1975-5-24 8081 Humboldt Off Samoa Blvd. across from the boat landing Comment
  RSA638987  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1965-8-8 35239 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC299909  Erechtites minimus H. M. Hall 1924-8-7 12079 Humboldt Near Orrick along highway from Crescent City to Orrick Comment
  JEPS52495  Eremocarpus setiger Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  CDA5471  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  CAS-BOT-BC293613  Erigeron biolettii Doris K. Kildale 1929-8-4 8777 Humboldt Mattole River at Union Mattole Comment
  HSC35600  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt Bald Hills Rd., just W of French Camp. Comment
  CAS-BOT-BC300679  Erigeron foliosus var. mendocinus Carl Purdy 1938-1-1 s.n. Humboldt Van Duzen River Comment
  UC581724  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near the summit of ridge) 762 Comment
  HSC5524  Erigeron glaucus J. W. Johnson 1961-8-17 1036 Humboldt Dune fields of W.M. Lanphere Farm, Samoa Peninsula Comment
  HSC57622  Erigeron klamathensis G. L. Clifton, Griswold 1979-7-25 10752 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC175188  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1913-6-19 4212 Humboldt opposite, Dinsmore's Ranch Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET11851212  Erigeron strigosus H. P. Chandler 1901-1 1402 Humboldt Klamath River, North Coast Ranges 244 Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  CAS-BOT-BC248808  Eriogonum compositum var. compositum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  HSC49090  Eriogonum latifolium Patricia Shesgreen 1978-8-12 136 Humboldt Along Hwy. 255, 0.25 mi. S of Samoa Bridge Comment
  RSA393623  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  CAS-BOT-BC259540  Eriogonum luteolum var. luteolum Marcus E. Jones 1931-7-16 28862 Humboldt Junction, East of Arcata Comment
  CAS-BOT-BC259542  Eriogonum luteolum var. luteolum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC176709  Eriogonum luteolum var. luteolum Joseph P. Tracy 1912-8-3 3968 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  UC6566  Eriogonum luteolum var. luteolum C. C. Marshall 1888-1 Humboldt Comment
  CAS-BOT-BC261498  Eriogonum nudum var. nudum L. R. Abrams 1916-7-11 6003 Humboldt Between Blocksberg and Bridgeville Comment
  UC1222337  Eriogonum nudum var. nudum Joseph P. Tracy 1950-8-20 19320 Humboldt just above Slate Creek (along Klamath River at Big Bar); Klamath River, Big Bar 121 Comment
  HSC38522  Eriogonum nudum var. oblongifolium D. E. Anderson, J. P. Smith 1971-6-18 1076 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC1222336  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1950-9-22 19373 Humboldt Slate Creek Comment
  HSC72976  Eriogonum umbellatum D. K. Imper 1981-8-12 907 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  CAS-BOT-BC267967  Eriogonum umbellatum var. argus Doris K. Kildale 1925-8-16 1219 Humboldt Trinity Summit 1917 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC55278  Eriogonum umbellatum var. stellatum Overton, Butler 1979-8-2 12689 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  SEINET10551827  Eriophorum crinigerum Henry N. Bolander 1866-1 Bolander 6475 Humboldt Red Mountain. Comment
  HSC36636  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1906 Humboldt End of road to Pine Mtn. Comment
  JEPS34743  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-26 678 Humboldt s end of Dyerville Bridge (South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  CAS-BOT-BC301013  Eriophyllum lanatum var. achilleoides W. R. Dudley 1899-6-21 s.n. Humboldt Eel River Road on rocks above Pepperwood Comment
  HSC70700  Eriophyllum lanatum var. arachnoideum Gail Newton 1980-7-15 1552 Humboldt Near Sims Mtn. 1311 Comment
  UC165841  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1906-7-15 2539 Humboldt Table Bluff Northern Coast, Region about Humboldt Bay, Table Bluff 0 Comment
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  CAS-BOT-BC302012  Eriophyllum staechadifolium Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  HSC8495  Erodium cicutarium R. T. Forester 1963-3-13 23 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  HSC26295  Erodium moschatum T. O. Osborne 1970-9-16 40 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC57415  Erysimum capitatum var. capitatum G. L. Clifton, Terry Griswold 1979-7-26 10177 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC73747  Erysimum capitatum var. capitatum M. A. Baker 1980-7-15 2949 Humboldt Near Whiting Ridge. 1341 Comment
  CAS-BOT-BC54919  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt Ocean Beach at Humboldt Bay. Comment
  UCD115016  Erysimum menziesii Linda M. Barker 1976-4-13 1384 Humboldt 3 miles west of Arcata. Comment
  HSC100889  Erythronium Carl C. Marshall Apr 1887 357 Humboldt Near Lupton's Redwood. Comment
  JEPS61844  Erythronium californicum Joseph P. Tracy May 1918 Humboldt Eureka Comment
  HSC15488  Erythronium citrinum var. citrinum E. C. Murczek 1964-4-4 29 Humboldt 8 mi. N of Hoopa Comment
  JEPS503  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC502714  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt Opening in Fir forest near McKay Camp, South Fork Mtn. 1676 Comment
  HSC48399  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel 1973-6-10 86 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC503023  Eschscholzia californica Joseph P. Tracy 1932-6-14 10140 Humboldt hillsides w mouth of S. Fork Trinity River; Northern Coast Ranges, Trinity River Valley 609 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC58769  Eucephalus ledophyllus Terry Griswold 1979-7-26 10299 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC58818  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12103 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC44570  Eucephalus ledophyllus var. ledophyllus Brad Klipfel 1973-7-15 189 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75354  Euonymus occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3642 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  POM47094  Euonymus occidentalis J. B. Feudge 1923-7-25 86 Humboldt Fortuna 23 Comment
  JEPS51869  Euphorbia crenulata Harley P. Chandler Jun 1901 1457 Humboldt Bluff Creek; North Coast Ranges, Klamath River 304 Comment
  CDA4829  Euphorbia davidii E. C. Whitney 1963-8-5 s.n. Humboldt In ballast of N.W.P. R.R. tracks, Scotia. 0 Comment
  RSA602487  Euphorbia helioscopia D. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  UC581767  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt Northern Coast Ranges, Trinity River Valley; Lack Pond, opposite mouth of Willow Creek 152 Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  CAS-BOT-BC282499  Festuca elmeri Joseph P. Tracy; H. E. Parks 1934-6-27 11045 Humboldt Horse Mountain 1524 Comment
  UC187110  Festuca elmeri Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC72634  Festuca occidentalis J. P. Smith 1977-7-3 9249 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  CAS-BOT-BC278965  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  POM126116  Festuca rubra Joseph P. Tracy 1906-6-24 2511 Humboldt South slope of Humboldt Hill, near Field's Landing. Region about Humboldt Bay. 0 Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  UC187119  Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt immediate vicinity Eureka 0 Comment
  UCD66493  Festuca subuliflora A. A. Beetle; G. L. Stebbins Jr 1942-6-1 3451 Humboldt 4 miles north of Orleans on road to Somesbar, wooded banks of Klamath River. Comment
  CAS-BOT-BC453516  Fragaria chiloensis W. R. Dudley 1899-6-1 s.n. Humboldt Pennisula of Eureka Comment
  SEINET4090923  Fragaria chiloensis O. M. Clark 1932-1 702 Humboldt North Eureka. Comment
  HSC18634  Fragaria vesca Francis Winter 1960-4-23 Humboldt 1.0 mi. N of Dollar Ranch on Korbel-Maple Creek Rd. 229 Comment
  HSC44279  Fragaria vesca D. L. Goforth 1977-4-23 4 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  HSC99402  Fragaria vesca K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 51 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1198728  Fragaria vesca Joseph P. Tracy 1917-4-29 4778 Humboldt Lucas Prairie; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC457930  Fragaria vesca subsp. californica Joseph P. Tracy 1932-7-15 10578 Humboldt Near Corral Prairie; Trinity Summit; Klamath Mountains 1524 Comment
  HSC30335  Frangula purshiana Dale R. Gradek 1974-4-17 38 Humboldt 0.25 mi N of intersection of Dows Prairie Rd and Grange Rd. Comment
  HSC59446  Frangula purshiana Kenneth Clark 1979-5-29 367 Humboldt 0.1 mi. past end of Granite Ave. 23 Comment
  HSC89760  Frangula purshiana M. Roantree 1985-5-30 73 Humboldt E side of Trinidad Head along dirt road Comment
  SBBG26939  Frangula purshiana subsp. purshiana H. E. and S. T. Parks -Jun-1937 24018 Humboldt Spruce Cove, Trinidad Comment
  HSC97504  Fritillaria affinis C. Witte 2007-5-22 81 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  RSA90637  Fritillaria affinis Ralph Lewis 1936-4-10 s.n. Humboldt Along Redwood Highway, first bridge south of Cummings Comment
  HSC67178  Galium ambiguum Thomas W. Nelson, James Nelson 1980-6-10 5429 Humboldt Along E side of Red Mtn. 1372 Comment
  UC176062  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3913 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC81605  Galium aparine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5261 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  HSC95750  Galium aparine Steven Lee 2004-4-25 23 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  HSC19781  Galium aparine B. D. Rogers, William J. Ferlatte 1966-6-8 2087 Humboldt Forest Glen Campground Comment
  HSC70654  Galium bolanderi Gail Newton 1980-7-14 1530 Humboldt Near Deadman Ridge 1097 Comment
  UC416637  Galium boreale subsp. septentrionale Harley P. Chandler 1901-6-14 1484 Humboldt between Orleans Bar and Somes Bar; North Coast Ranges, Klamath River 304 Comment
  JEPS81017  Galium divaricatum Thomas W. Nelson and Jane P. Nelson 1977-9-4 3746 Humboldt in cultivated area town of Willow Creek Comment
  UC35333  Galium muricatum Chesnut and Drew 1888-7-12 Humboldt Campbell's Comment
  RSA46487  Galium porrigens Doris K. Kildale 1926-3-26 1645 Humboldt Old Fortuna Rd Comment
  UC602542  Galium trifidum Joseph P. Tracy 1927-7-17 8273 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  HSC58207  Galium triflorum Walter Overton 1979-8-1 12322 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC41593  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3597 Humboldt N of pond above Alder Springs Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  CAS-BOT-BC303395  Gamochaeta ustulata Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA44414  Gamochaeta ustulata H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  HSC78975  Gamochaeta ustulata L. P. Janeway, Paul Wilson 1984-5-25 830 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  RSA638992  Gamochaeta ustulata R. F. Thorne 1974-7-29 45067 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  RSA485907  Garrya elliptica G. Dahling 1973-06 1229 Humboldt Along Highway 101, about ten miles north of Trinidad. Comment
  UC1196887  Garrya elliptica Joseph P. Tracy 1921-2-27 5414 Humboldt Drakes Hill; Northern Coast Region 30 Comment
  UC1215539  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt W. M. Lanphere's ranch 9 Comment
  UC1550379  Garrya elliptica Gerald V. Dahling Jun 1973 1229 Humboldt about 10 mi n Trinidad (along Highway 101) Comment
  CAS-BOT-BC182146  Garrya fremontii Doris K. Kildale 1929-4-25 7434 Humboldt McDowell Butte - Kneeland Prairie 914 Comment
  HSC8399  Garrya fremontii Elrid H. Spinas 1948-5-22 37 Humboldt Horse Mtn. Comment
  HSC98071  Garrya fremontii Cara Witte 2007-7-12 530 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  RSA152691  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1196892  Garrya fremontii Joseph P. Tracy 1939-8-16 16408 Humboldt Horse Mountain 1432 Comment
  UC1196893  Garrya fremontii Joseph P. Tracy 1947-7-9 17840 Humboldt Horse Mountain 1402 Comment
  UC1225767  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Willow Creek; Trinity River Valley 152 Comment
  UCD66721  Gastridium phleoides Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River. 426 Comment
  UC589848  Gastridium ventricosum H. S. Yates 1936-6-23 5877 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  HSC22502  Gaultheria shallon H. S. Logsdon 1964-5-13 40 Humboldt 4.0 mi. NE of Orick at Boye's Prairie, E side of Hwy. 101 Comment
  HSC22527  Gaultheria shallon Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  HSC47492  Gaultheria shallon Sheila Logan 1978-4-9 16 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  SBBG59965  Gaultheria shallon R. Hartwell 1938-8-3 105 Humboldt Bull Crk, Redwood Flat, Eel River Comment
  JEPS27600  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196967  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13044 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC14654  Genista monspessulana William J. Ferlatte 1963-4-21 18 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  UCD105720  Genista monspessulana Joseph M. DiTomaso 1976-3-28 342 Humboldt Arcata, 3rd and 'D' streets. Comment
  JEPS24351  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit 1828 Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC41183  Gentiana sceptrum Robert M. Specht 1976-10-6 546 Humboldt S shore of Big Lagoon on E side of Hwy. 101 Comment
  UC1198642  Gentiana sceptrum Joseph P. Tracy 1920-8-29 5393 Humboldt Dows Prairie Northern Coast Ranges 45 Comment
  UC1198643  Gentiana sceptrum Joseph P. Tracy 1938-9-25 16166 Humboldt Lake Prairie Bald Mountain 1066 Comment
  JEPS47053  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit 1828 Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  UC1198952  Geranium core-core Joseph P. Tracy 1909-5-23 2977 Humboldt Eureka Northern Coast Region 0 Comment
  UC1198953  Geranium core-core J. P. Tracy 1911-6-11 3239 Humboldt Trinidad 91 Comment
  HSC12777  Geranium retrorsum Jana Kattenhorn 1970-10-24 140 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  UC176953  Gilia capitata subsp. pacifica Joseph P. Tracy 1912-6-9 3672 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC52485  Gilia capitata subsp. pacifica Joseph Burtt Davy and Walter C. Blasdale 1899-5 5561 Humboldt Alton Alton (Old river bluffs, North-Western California) Comment
  UC907967  Gilia capitata subsp. pacifica Joseph P. Tracy 1936-6-9 14894 Humboldt s of point of Cape Mendocino s of point Cape Mendocino (near ocean shore) 3 Comment
  HSC100592  Gilia grandiflora Carl C. Marshall Jun 1886 314 Humboldt Vicinity of Hoopa. Comment
  HSC100593  Gilia inconspicua Carl C. Marshall 1885-5-11 36 Humboldt Peninsula near Fairhaven. Comment
  RSA150803  Gilia millefoliata D. E. Breedlove 1962-6-7 3041 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC10075  Glyceria declinata D. J. Wilder 1965-4-24 10 Humboldt In field where Little River crosses U.S. 101 Comment
  UC212892  Glyceria elata Joseph P. Tracy 1919-9-25 5297 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  CAS-BOT-BC282840  Glyceria striata H. P. Chandler 1901-6-1 1526 Humboldt Klamath River 426 Comment
  HSC103605  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1985-8-5 8000 Humboldt Eureka; along old logging road just east of Lundbar Hills. 46 Comment
  UCR48596  Gnaphalium ramosissimum R. D. Goeden, Don W. Ricker 1987-9-2 870902- 8 Humboldt Loleta, along Cannibal Road 8 Comment
  UC1196437  Goodyera oblongifolia J. P. Tracy 1900-7-4 879 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC179960  Goodyera oblongifolia Joseph P. Tracy 1914-8-30 4595 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  CAS-BOT-BC304729  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  HSC91913  Grindelia hirsutula E. Mackey 1986-12-18 Humboldt Patricks Point State Park; parking lot at Palmer's Point Comment
  JEPS93179  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  SEINET193102  Grindelia hirsutula var. davyi Y. W. Winblad 1941-6-24 Humboldt Between Garberville and Hartsook Comment
  CHSC69498  Grindelia stricta var. platyphylla Vernon Oswald; Lowell Ahart 1997-9-4 8845 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. 3 Comment
  HSC100391  Gymnogramma triangularis Carl C. Marshall Apr 1886 48 Humboldt Dry hills. Comment
  HSC31453  Hackelia bella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  HSC44542  Hastingsia alba Brad Klipfel 1973-7-15 161 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC508211  Hastingsia alba Joseph P. Tracy 1935-7-24 14195 Humboldt Trinity Summit, moist rocky exposed places near ranger station 1828 Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  CAS-BOT-BC306618  Helenium bigelovii Henry M. Pollard 1947-8-31 s.n. Humboldt Klamath River bar nr. Woodson's placer mine, Orleans region Comment
  HSC5764  Helenium bigelovii J. Wendell Howe 1934-6-24 1278 Humboldt Bald Hills - Mad Woods Comment
  JEPS35428  Helenium bigelovii H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mt. 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
  UC582671  Helenium bigelovii Joseph P. Tracy 1937-8-12 15627 Humboldt Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  RSA18613  Helenium bolanderi C. B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC1223170  Helminthotheca echioides Joseph P. Tracy 1950-9-10 19361 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, brushy hillside along the coast road); foothills of the Cape Mendocino Ridge 60 Comment
  UC275468  Helminthotheca echioides Joseph P. Tracy 1925-11-1 7297 Humboldt Shively Northern Coast Ranges, Shively 60 Comment
  CAS-BOT-BC305848  Helminthotheca echioides Doris K. Kildale 1928-7-29 5918 Humboldt Bear River at Capetown Comment
  HSC25942  Helminthotheca echioides Thomas W. Nelson 1970-10-31 294 Humboldt Eel River near N end of the Scotia Bluff. Comment
  UC198637  Hemitomes congestum Joseph P. Tracy 1916-6-25 4740 Humboldt between Little River and Redwood CreekNorthern Coast Ranges Redwood Creek (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  HSC53816  Hemizonella minima Griswold, Butler 1979-7-10 6253 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  HSC57209  Hemizonella minima Griswold, Butler 1979-7-12 7189 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC97470  Hemizonella minima Cara Witte 2007-5-23 92 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC275470  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-9-20 7272 Humboldt near the s fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC309986  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  UC582500 Image available Hesperevax acaulis var. robustior Joseph P. Tracy 1932-5-1 9867 Humboldt vicinity of Garberville 121 Comment
  UC203568  Heterocodon rariflorum Joseph P. Tracy 1918-7-5 5009 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  SEINET10460607  Heterocodon rariflorum Willis L. Jepson Jepson 16394 Humboldt GARBERVILLE Comment
  POM89166  Heteromeles arbutifolia Joseph P. Tracy 1920-8-15 5389 Humboldt Klamath River at Bluff Creek. 152 Comment
  UCSB30616  Heterotheca oregona Edwards, David 1974-8-1 Humboldt Near E. bank of Mad River north of its junction with Puter Creek, ca. 2 mi. SW of Korbel 3 Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  HSC102136  Heuchera merriamii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1040 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44335  Heuchera micrantha Brad Klipfel 1975-6-17 676 Humboldt Horse Mtn. Comment
  CAS-BOT-BC423448  Heuchera micrantha var. macropetala Freed Hoffman 1950-7-11 4009 Humboldt Northeastern Humboldt county. On serpentine, 16.1 mi. above and north of Klamath River Road, along road to Cedar camp. 914 Comment
  HSC56114  Heuchera rubescens Gilbert Muth 1979-8-1 11884 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CAS-BOT-BC312395  Hieracium albiflorum W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  HSC40964  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 mi. W of Arcata Comment
  HSC67880  Hieracium albiflorum J. P. Smith 1973-5-26 6874 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC79502  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt N Fork of Deadman's Gulch 107 Comment
  UC582415  Hieracium albiflorum Joseph P. Tracy 1932-7-12 10433 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  RSA47102  Hieracium albiflorum Doris K. Kildale 1925-7-15 1088 Humboldt Eureka Slough. Comment
  JEPS36565  Hieracium bolanderi Joseph P. Tracy 1926-6-20 7638 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC316006  Hieracium nudicaule Henry M. Pollard 1943-8-1 s.n. Humboldt New Orleans Comment
  RSA156091  Hierochloe occidentalis W. A. Silveus 1938-7-9 2960 Humboldt Dyerville. Comment
  UC275351  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  CAS-BOT-BC280736  Holcus lanatus Ira L. Wiggins 1930-6-25 4614 Humboldt 2 miles north of Samoa Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  POM291100  Holcus lanatus Lyman Benson 1929-7-14 1797 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC1103732  Holcus lanatus Joseph P. Tracy 1934-7-2 13295 Humboldt Trinidad 3 Comment
  UC1103733  Holcus lanatus Joseph P. Tracy 1948-7-31 18080 Humboldt Eureka 30 Comment
  HSC64190  Holodiscus discolor J. O. Sawyer, M. A. Ericksen 1979-6-23 3378 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  SD51265  Holodiscus discolor Darley F. Howe 1961-8-1 Humboldt 3.3 miles north of Trinidad on #101 Comment
  UCD113355  Holodiscus discolor J. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  HSC58667  Hordeum brachyantherum G. L. Clifton, Griswold 1979-8-1 12081 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC101474  Hordeum brachyantherum subsp. brachyantherum J. P. Smith 2010-5-29 12887 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  CAS-BOT-BC284756  Hordeum murinum subsp. glaucum Kenneth Clark 1980-5-10 644 Humboldt Shelter Cove. Point Delgada 3 Comment
  CAS-BOT-BC536627  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  UC1222320  Horkelia californica subsp. dissita Joseph P. Tracy 1950-7-6 19018 Humboldt 3 mi s Burr Valley (High meadow); Buck Mountain 1158 Comment
  CAS-BOT-BC537899  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 s.n. Humboldt Little Van Duzen River Comment
  HSC100516  Hosackia crassifolia Carl C. Marshall Jun 1886 239 Humboldt Near Mad River and E of Hoopa. Comment
  SEINET957086  Hosackia rosea A. M. Ottley 1914-1 4599 Humboldt Same locality as 4576. Bald Mountian between high prairie and snow camp. 1219 Comment
  SEINET957089  Hosackia rosea J. P. Tracy 1949-1 18321 Humboldt Undergrowth in woods near Boynton Prairie 12 miles southeast of Arcata; abundant especially in Tan Oak areas spreading by rootstocks. Comment
  UCSB22187  Hydrocotyle ranunculoides Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  UC562601  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC57965  Hypericum anagalloides G. L. Clifton, Griswold 1979-7-31 11676 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC74430  Hypericum anagalloides Gail Newton 1980-8-10 2060 Humboldt Near Blake Mtn. 1707 Comment
  UC502936  Hypericum anagalloides Joseph P. Tracy 1932-7-16 10607 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC1198404  Hypericum formosum var. scouleri Joseph P. Tracy 1920-7-25 5345 Humboldt Dows Prairie Northern Coast Ranges, Humboldt Bay, Dows Prairie 60 Comment
  UC1122120  Hypericum perforatum H. L. Person 1932-7-16 Humboldt Korbel Eureka Quad., Korbel Comment
  UC1198408  Hypericum perforatum Joseph P. Tracy 1914-5-14 4449 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC100439  Hypochaeris glabra Carl C. Marshall May 1885 44 Humboldt Roadsides, etc. Comment
  HSC34584  Hypochaeris glabra A. Montalvo 1975-5-24 271 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC206848  Iliamna latibracteata C. B. Wolf 1937-9-11 9322 Humboldt 3 miles north of Orick on Redwood Highway, Davison's Ranch on Prairie Creek 60 Comment
  JEPS67375 Image available Iliamna latibracteata Mrs. V. P. Fox July, 1919 Humboldt Bald Mt. Comment
  JEPS67378 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM87683  Iris douglasiana Le Roy Abrams, Rimo C. Bacigalupi 8273 Humboldt Big Lagoon, south of Orick. Comment
  HSC49967  Iris douglasiana M. A. Baker 1979-5-30 768 Humboldt NW tip of Elk Head Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  RSA135872  Iris douglasiana Lee W. Lenz, E. K. Balls 1955-5-15 20742 Humboldt 2 miles southeast of Petrolia, along Old Coast Road to Ettersburg 122 Comment
  UC667118  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  UC14927  Iris macrosiphon P. E. Goddard 1901-7-8 30 Humboldt Hupa Comment
  HSC100502  Iris macrosiphon Carl C. Marshall Jun 1885 28 Humboldt In the redwoods. Comment
  RSA135818  Iris purdyi E. K. Balls 1957-5-26 22607 Humboldt 0.3 miles northeast of Harris on road to Alder Point 762 Comment
  RSA275383  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9925 Humboldt Ishi Pishi Road, 2.5 miles from its junction with Route 36 in Orleans. 213 Comment
  HSC67520  Iris tenuissima J. P. Smith, J. O. Sawyer 1973-5-12 6698 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  UC14930  Iris tenuissima Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  HSC67160  Iris tenuissima J. P. Smith, J. O. Sawyer 1973-5-12 6669 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS64019  Isolepis cernua W. L. Jepson 1921-8-7 9326 Humboldt on the flats and beach Stone Lagoon Comment
  SEINET4170781 Image available Isolepis cernua H. E. Parks, S. T. Parks 24244 Humboldt Spruce Cove , Trinidad 61 Comment
  CHSC56526  Jaumea carnosa L. P. Janeway 1983-9-24 705 Humboldt Sand pit next to Big Lagoon. 3 Comment
  HSC89905  Jaumea carnosa Leonel Arguello 1989-7-22 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  POM187933  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata. Comment
  RSA168844  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt Hillside west of mouth of South Fork. Trinity River Valley , near the South Fork 183 Comment
  UC1103034  Juncus bolanderi Joseph P. Tracy 1900-7-12 897 Humboldt Eureka Northern Coast Region 0 Comment
  CDA39158  Juncus breweri T. C. Fuller 1961-9-28 7057 Humboldt 1.5 miles south of Samoa. 0 Comment
  UC726591  Juncus bufonius A. A. Heller 1923-7-10 13798 Humboldt between Scotia and Pepperwood; Eel River Comment
  HSC13993  Juncus bufonius J. E. Lankila 1962-4-14 6 Humboldt W bank of Eel River across from Shively, 0.25 mi. N of Bear Creek Comment
  HSC23143  Juncus bufonius Norman Dennis 1965-6-19 128 Humboldt 0.25 mi. S and 1 mi. E of jct. of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 3 mi. SE of Kneeland 793 Comment
  SEINET6333123  Juncus bufonius S. T. Parks, H. E. Parks 24254 Humboldt North Coast Ranges, Spruce Cove, Trinidad 61 Comment
  UC1152115  Juncus bufonius Joseph P. Tracy 1930-10-19 9233 Humboldt near Alton; Eel River Comment
  UC1152114  Juncus bufonius var. occidentalis Joseph P. Tracy 1934-6-27 11088 Humboldt 2 mi se Grouse Mountain top; Grouse Mountain 1524 Comment
  UC213332  Juncus confusus Joseph P. Tracy 1919-9-22 5272 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC249813  Juncus covillei var. obtusatus Joseph P. Tracy with H. E. Parks 1924-8-3 6759 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  POM87662  Juncus ensifolius Le Roy Abrams, Rimo C. Bacigalupi 8286 Humboldt Big Lagoon. South of Orick. Comment
  UC14899  Juncus ensifolius J. P. Tracy 1900-8-5 917 Humboldt immediate vicinity Eureka 0 Comment
  UC1103035  Juncus ensifolius Joseph P. Tracy 1921-10-16 5970 Humboldt near Willow Creek (mouth of South Fork Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC91872  Juncus hesperius E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  JEPS63872  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  HSC14029  Juncus lescurii C. B. Wolf 1927-8-29 1205 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC45545  Juncus lescurii J. P. Smith 1971-10-6 4975 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCD141574  Juncus lescurii Linda M. Barker 1976-6-22 1620 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC102072  Juncus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 974 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA44475  Juncus tenuis Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  OBI14464  Kalmia polifolia Joseph P. Tracy 1942-6-23 17262 Humboldt Local at "Water Dog lakes" Comment
  UC153388  Keckiella corymbosa P. E. Goddard 1906-6 635 Humboldt North Fork of Eel River Comment
  CAS-BOT-BC237833  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762 Comment
  POM208967  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Eel River, above its junction with S Fork, 0.5 mile from South Fork R.R. Sta. 46 Comment
  HSC76232  Kelloggia galioides Teresa Prendusi 1981-7-21 265 Humboldt Near Whiteys Peak 1646 Comment
  HSC95250  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Humboldt Marsh and Wildlife Refuge, SE corner of Klopp Lake Dike 1 Comment
  UC526699  Koeleria macrantha Joseph P. Tracy 1925-7-5 7163 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS13532  Kopsiopsis strobilacea Mrs. Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  JEPS40365  Lagophylla ramosissima Lincoln Constance 1934-5-29 729 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  CAS-BOT-BC337991  Lasthenia californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC1199135  Lasthenia californica subsp. californica Joseph P. Tracy 1932-5-1 9856 Humboldt Redway 182 Comment
  UCD106195  Lathyrus annuus W. A. Williams 1951-6-14 s.n. Humboldt 5 miles S of Capetown. Comment
  HSC14735  Lathyrus japonicus R. C. Hoover 1965-5-18 57 Humboldt Clam Beach Comment
  CAS-BOT-BC213491  Lathyrus jepsonii subsp. californicus Alice Eastwood; John Thomas Howell 1937-6-23 4769 Humboldt Near Dinsmore's. Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  RSA245212  Lathyrus littoralis J. E. Walters 1966-4-13 35 Humboldt 1/4 miles N. of Samoa Pulp Mill. 5 Comment
  JEPS79916  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt Northern Coast Ranges, South Yager Creek Valley South Yager Creek Valley; Northern Coast Ranges, South Yager Creek Valley 762 Comment
  UC302108  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1926-5-2 7444 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UCD106342  Lathyrus polyphyllus A. Murphy 1951-5-15 s.n. Humboldt Half mile S. of South Fork on McCann Road. Comment
  UCD106343  Lathyrus polyphyllus W. A. Williams Date unknown s.n. Humboldt location unknown. Comment
  UC1222402  Lathyrus torreyi Joseph P. Tracy 1943-7-18 17430 Humboldt East Fork of Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek Canyon Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC26250  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson 1972-11-2 700 Humboldt Hwy. 36, 5 mi. W of Dinsmore. Comment
  UC495710  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1929-5-5 8579 Humboldt Phillipsville, facing South Fork of Eel River South Fork of Eel River; Northern Coast Ranges 121 Comment
  CAS-BOT-BC325993  Layia carnosa Greg de Nevers 2001-4-18 12253 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  UC1223218  Layia gaillardioides Joseph P. Tracy 1942-6-15 17165 Humboldt 5 mi n Garberville 60 Comment
  HSC10273  Leersia oryzoides D. E. Anderson 1963-9-29 2847 Humboldt Fish Lake. Comment
  HSC5926  Leontodon saxatilis subsp. saxatilis S. R. Johnson 1965-3-15 12 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CAS-BOT-BC89518  Lepidium jaredii L. (Lorenzo Dow) Jared 1894-3-20 s.n. Humboldt East Arcata. Comment
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Mar 21 2021
  CHSC42328  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg. Comment
  HSC49924  Leptosiphon androsaceus Maralyn O'Meara 1974-7-11 538 Humboldt Kneeland, Barry Ridge Comment
  POM299436  Leptosiphon androsaceus S. K. Harris, C. C. Harris 1942-6-17 s.n. Humboldt 1 mile north and 3 miles east of Chalk Mountain 665 Comment
  UC581785  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt along Mad River; Blue Lake Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  UC673019  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC39615  Lewisia nevadensis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2719 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  CAS-BOT-BC283514  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  UC314580  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad Northern Coast Ranges, Trinidad 60 Comment
  HSC74325  Ligusticum californicum M. A. Baker 1980-6-16 1957 Humboldt Near Onion Mtn. 1280 Comment
  HSC49055  Ligusticum californicum Patricia Shesgreen 1978-8-2 123 Humboldt Arcata Community Forest, 100 yds N of field house, 25 ft from pond Comment
  HSC76438  Lilium bolanderi Teresa Prendusi 1981-7-9 202 Humboldt Near Cedar Camp 1268 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-BC508393  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Comment
  CAS-BOT-BC130639  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 119 Humboldt Freshwater Comment
  CHSC98393  Lilium kelloggii Dean Wm. Taylor 2004-6-23 19116 Humboldt Fickle Hill Road 1.3 miles north of junction Butler Valley road. 731 Comment
  UC1035024  Lilium kelloggii A. M. Vollmer and L. Beane Jul 1953 119 Humboldt Freshwater Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UC175928  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC54016  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-12 7158 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC99049  Lilium pardalinum subsp. pardalinum Cara Witte 2008-7-25 932 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  HSC35754  Lilium washingtonianum subsp. purpurascens Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1998 Humboldt French Camp, Bald Hills. Comment
  UC13797  Lilium washingtonianum subsp. purpurascens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  HSC57654  Lilium washingtonianum subsp. washingtonianum G. L. Clifton, Griswold 1979-7-25 10825 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1197411  Limnanthes douglasii Joseph P. Tracy 1927-7-4 8240 Humboldt Lone Star Creek Northern Coast Ranges (Iaqua region) 609 Comment
  UC668184  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  HSC89992  Limonium californicum Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC90320  Limonium californicum Jean Hanson 1980-6-22 102 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  UC665605  Linanthus androsaceus Victor Duran 1933-5-10 3403 Humboldt near Blocksburg Comment
  UC180237  Linanthus bicolor Joseph P. Tracy 1914-6-14 4503 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1198586  Linanthus ciliatus Joseph P. Tracy 1914-5-14 459 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC52822  Linanthus ciliatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC52409  Linanthus filipes Mrs. M. H. Manning Humboldt Hoopa Comment
  SEINET8729346 Image available Linanthus harknessii Joseph P. Tracy 1933-1 1283 Humboldt Grouse Mountain. Comment
  JEPS11330  Linaria vulgaris Milo S. Baker 1923-8-4 171 Humboldt Stone Lagoon; North Coast, Stone Lagoon Comment
  SEINET5740993 Image available Linnaea borealis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6105 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 2.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7NO4N, the road to Groves Prairie. The collection site is a short distance up this road.; Groves Prairie Comment
  HSC15799  Linum bienne John A. Dubois 1962-5-12 13 Humboldt 20 mi. E of Arcata Comment
  HSC72684  Listera caurina J. P. Smith 1977-7-3 9266 Humboldt Onion Lake Comment
  UC1196501  Lithophragma affine Joseph P. Tracy 1921-4-30 6015 Humboldt Trinity River Valley near Willow Creek (Northern Coast Ranges); , Trinity River Valley, nr Willow Creek 152 Comment
  HSC45399  Lithophragma campanulatum Thomas W. Nelson, Jane Nelson 1977-6-19 3492 Humboldt N of Goat Hill 1616 Comment
  JEPS20905  Logfia filaginoides Joseph P. Tracy 1921-5-30 5489 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1199424  Logfia gallica Joseph P. Tracy 1936-8-23 15165 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1199425  Logfia gallica Joseph P. Tracy 1935-5-24 13876 1/2 Humboldt Fort Seward 106 Comment
  UC38782  Lolium multiflorum Harley P. Chandler May, 1901 1103 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  POM188113  Lolium perenne Marcus E. Jones 1931-7-16 29212 Humboldt Arcata. Comment
  CAS-BOT-BC271058  Lolium temulentum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  UCD66658  Lolium temulentum A. H. Murphy 1947-5-12 Humboldt Fairgrounds at Ferndale. Comment
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May 24 2012
  HSC74397  Lomatium californicum Gail Newton 1980-6-28 721 Humboldt Near Mad River Butte. 1536 Comment
  HSC96281  Lomatium californicum Wanda Naylor, Laurel Goldsmith 2005-6-24 14 Humboldt S of Grouse Mountain on NF1 1595 Comment
  HSC99106  Lomatium dasycarpum subsp. dasycarpum Cara Witte 2008-6-18 743 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1375 Comment
  JEPS16238  Lomatium dissectum var. dissectum Milo S. Baker 1923-7-20 57 Humboldt Redwood House on Yager Creek; North Coast, Redwood House Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC97413  Lomatium macrocarpum Griswold, Butler 1979-7-10 6230 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC46923  Lomatium tracyi Brad Klipfel 1974-5-27 381 Humboldt Horse Mtn. Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  UC21257  Lomatium triternatum var. macrocarpum Harley P. Chandler June, 1901 1378 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC37195  Lomatium utriculatum Barbara Kelly 1976-5-13 251 Humboldt Below road at Kneeland Airport Comment
  OBI8842  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt 1 mi north of Harris P.O. and ca 3-1/2 mi south of Harris Jct Comment
  RSA254740  Lomatium vaginatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1222487  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole Trinity Summit 1676 Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  HSC60070  Lonicera hispidula var. vacillans M. A. Baker 1978-5-6 502 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  RSA696526  Lonicera hispidula var. vacillans J. R. Bruff 1937-8-17 925 Humboldt Richardson Grove. Comment
  UC35427  Lonicera hispidula var. vacillans Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  CHSC11388  Lonicera involucrata var. ledebourii Lowell Ahart 1968-5-31 Humboldt Patrick's Point State Park. 30 Comment
  HSC3926  Lonicera involucrata var. ledebourii W. R. Brigham 1962-5-19 8 Humboldt S of Big Lagoon. Comment
  HSC40297  Lonicera involucrata var. ledebourii Linda M. Barker 1976-4-30 1400 Humboldt 3 mi. W of Arcata Comment
  HSC63083  Lonicera involucrata var. ledebourii David Wheeler 1979-4-20 71 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  SBBG69576  Lonicera involucrata var. ledebourii R. Hartwell 1938-8-6 Humboldt near Arcata Comment
  UC1222486  Lonicera involucrata var. ledebourii Joseph P. Tracy 1950-9-2 19346 Humboldt 2 mi s Field's Landing town Comment
  POM199441  Lotus aboriginus H. E. Parks, J. P. Tracy, C. R. Parks 1930-9-15 0762 Humboldt Kneeland, Bald Hills. Comment
  UC1223439  Lotus corniculatus Joseph P. Tracy 1950-9-22 19345 Humboldt 2 mi s Field's Landing town 6 Comment
  HSC98124  Lotus corniculatus Cara Witte 2007-6-28 386 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with 5N10D. 1426 Comment
  CDA27196  Lotus denticulatus T. R. Haig 1960-6-16 Humboldt 1 mile west of Bridgeville. 0 Comment
  UC179922  Lotus denticulatus Joseph P. Tracy 1914-6-14 1240 Humboldt near Hydesville; Northern Coast Ranges, Van Duzen River, Yager Creek 30 Comment
  POM18325  Lotus formosissimus W. C. Blasdale 1896-5-31 7471 Humboldt Eureka Comment
  UC1197291  Lotus humistratus Joseph P. Tracy 1911-7-4 3283 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  JEPS51821  Lotus nevadensis var. nevadensis W. L. Jepson 1902-7-3 1979 Humboldt Three Creeks to Willow Creek Comment
  UC1197314  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1932-7-13 10519 Humboldt Corral Prairie Klamath Mountains 1524 Comment
  UC33561  Lotus oblongifolius var. oblongifolius Chesnut and Drew Aug 1888 Humboldt mouth of Grouse Creek Grouse Creek Comment
  UC1197315  Lotus pinnatus J. P. Tracy 1901-6-30 1201 Humboldt immediate vicinity Eureka 0 Comment
  JEPS55746  Lotus purshianus var. purshianus W. L. Jepson 1936-8-12 17879 Humboldt Miranda South Fork Eel River Comment
  SEINET3559878 Image available Lotus torreyi Joseph P. Tracy 1914-7-4 4527 Humboldt High prairie on Bald Mountian 1067 Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  RSA21198  Luina hypoleuca C. B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 miles above Orleans. Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  RSA406972  Lupinus albicaulis var. albicaulis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  UC198580  Lupinus albifrons Joseph P. Tracy 1916-6-19 4707 Humboldt Burr Creek Northern Coast Ranges, Burr Creek (on high ridges at Robertson Ranch) 914 Comment
  UC503016  Lupinus albifrons Joseph P. Tracy 1929-4-28 8552 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 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
  SEINET3107399  Lupinus arboreus Steve Selva, Roger Jensen 1974-8-28 89 Humboldt Approx. 10 miles S of Arcata on the sand dunes of the Samoa Peninsula. Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC33762  Lupinus bicolor A. Montalvo 1975-5-24 277 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC76189  Lupinus latifolius Overton, Butler 1979-7-24 9779 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1223288  Lupinus latifolius var. latifolius Joseph P. Tracy 1936-7-5 15036 Humboldt top Grouse Mountain; top of Grouse Mountain 1524 Comment
  POM179219  Lupinus luteolus H. C. Cantelow 1940-7-6 s.n. Humboldt Near Van Duzen River, 7.5 miles east of Dinsmore. Comment
  UC427882  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley; in open meadows in Laribee Valley Comment
  UC176607  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1913-6-25 4335 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC774984  Lupinus polyphyllus var. polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 1/2 mi e Alton; e of Alton 21 Comment
  SBBG13914  Lupinus rivularis H. and M. Dearing 1933-5-17 2957 Humboldt N of Big Lagoon Comment
  UC204631  Lupinus rivularis Joseph P. Tracy 1918-9-8 5099 Humboldt Eureka; Northern Coast Ranges, at Eureka 0 Comment
  HSC91365  Lupinus rivularis A. Smith, A. Eller, B. Hoffman 1989-5-7 34 Humboldt 1 mi. W on Somoa Blvd. from J St. 0 Comment
  RSA95499  Lupinus rivularis L. S. Rose 1954-4-24 54012 Humboldt Garberville 152 Comment
  SEINET10488860  Lupinus rivularis Smith 1948-5-10 Smith 48246 Humboldt Hwy. 101--Red crest, few redwoods, 1 mi s. Comment
  HSC100503  Luzula Carl C. Marshall May 1886 219 Humboldt Gulch E of Arcata. Comment
  HSC64637  Luzula comosa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC71599  Luzula comosa M. A. Baker 1980-6-26 2412 Humboldt Near Sims Creek 610 Comment
  HSC74014  Luzula comosa R. York 1980-5-23 625 Humboldt Near Buck Mtn. 1524 Comment
  HSC77385  Luzula comosa L. P. Janeway 1983-5-29 321 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  RSA168863  Luzula comosa Joseph P. Tracy 1928-6-17 8449 Humboldt Serpentine soil near Ruby Creek, Willow Creek Canyon, along Trinity Highway. Comment
  UC1103679  Luzula comosa var. laxa Joseph P. Tracy 1918-5-12 4930 Humboldt Northern Coast Ranges at Eureka. Edge of woods near Cutten and McDonald Tract 0 Comment
  RSA368890  Luzula comosa var. laxa Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  HSC98527  Luzula parviflora Cara Witte 2008-7-25 937 Humboldt At intersection with Forest Service Road 5N10C and Forest Service Road 5N10. 1346 Comment
  UC1157634  Luzula parviflora Milo S. Baker 1947-8-6 11870 Humboldt Prairie Cr. State Park Comment
  UC2982  Luzula subsessilis Harley P. Chandler May, 1901 1104 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  SDSU11607  Lysichiton americanus D. F. Howe 1972-6-30 4845 Humboldt Trinidad Comment
  RSA0023003  Lythrum Robert F. Thorne, P. C. Everett 1965-8-9 35324 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC34699  Madia elegans Thomas W. Nelson 1974-8-24 1704 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  JEPS40364  Madia gracilis Lincoln Constance 1934-5-29 728 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  JEPS7387  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SBBG34731  Madia gracilis T. L. Secrest 1948-7-1 Humboldt near Hwy 101, southern Humboldt county Comment
  UC165190  Madia gracilis Joseph P. Tracy 1911-6-25 3250 Humboldt at Bucksport; Eureka 0 Comment
  RSA254781  Madia madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch north of Dinsmore. Comment
  POM362191  Madia madioides M. O'Mera 1974-7-1 541 Humboldt Kneeland, Barry Ridge, just off ridge Comment
  UC175196  Madia sativa Joseph P. Tracy 1913-6-13 4101 Humboldt opposite Buck Mountain (valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  HSC35863  Madia sativa Thomas W. Nelson, Jane P. Nelson 1975-8-5 2131 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  HSC15599  Maianthemum dilatatum D. B. Bader 1963-5-1 43 Humboldt Second of the Clam Beach lagoons N end, W of Hwy. 101 Comment
  HSC69845  Maianthemum dilatatum R. Kalal 1979-5-5 47 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  UCD161450  Maianthemum dilatatum K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  UCD139077  Maianthemum racemosum T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  HSC58176  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-8-2 12258 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70326  Maianthemum stellatum M. A. Baker 1980-6-8 1881 Humboldt Near Buck Flat. 1554 Comment
  HSC97576  Maianthemum stellatum Cara Witte 2007-5-29 134 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  JEPS45610  Malus fusca W. L. Jepson 1902-6-23 1917 a Humboldt Fortuna to Loleta Comment
  RSA1806  Malus fusca Carl B. Wolf 1930-10-26 1766 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  JEPS68659  Malva nicaeensis Lincoln Constance 1934-6-18 9006 Humboldt n border of Dyerville Flat (near South Fork Railroad Station and Post Office, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC7032  Marah oregana G. N. Bos 1965-5-15 268 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC1198476  Marah oregana Joseph P. Tracy 1927-6-8 8109 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UC203561  Marah oregana Joseph P. Tracy 1918-7-14 5077 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC249510  Marah oregana Joseph P. Tracy 1922-4-30 6035 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC577418  Marrubium vulgare Joseph P. Tracy 1925-5-17 6973 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  HSC45610  Matricaria discoidea Diane L. Reed 1978-5-7 70 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  POM174059  Matricaria occidentalis Joseph P. Tracy 1918-6-16 4955 Humboldt Northern Coast Ranges: Eureka; old logging camp 0 Comment
  CHSC70212  Melica californica D. E. Anderson 1965-5-22 3752 Humboldt On Kneeland-Bridgeville road. Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  SEINET10599370  Melica californica Joseph P. Tracy 1913-6-18 Tracy 4195 Humboldt Gravelly grassy hillside, Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain. 762 Comment
  HSC40310  Melica fugax Thomas W. Nelson, Jane P. Nelson 1976-6-22 2859 Humboldt Bog along road to Goat Hill. 1646 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  SEINET200333 Image available Melica harfordii Joseph P. Tracy 1913-6-13 4116 Humboldt Bolander Rocky Mountain slopes; near summit of ridge between Van Duzen and Mad rivers on Dinsmore's Ranch. 1067 Comment
  HSC38428  Melica subulata Dennis Anderson, J. P. Smith 1971-6-18 - 1055 Humboldt 1 mi. W of Lord Ellis Summit. Comment
  SEINET244893 Image available Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt Trinity Summit Comment
  UCD88675  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  RSA293200  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell.. Comment
  HSC15518  Melilotus indicus C. Kline 1970-11-28 59 Humboldt N Bank Rd., 3 mi. W of Blue Lake, Mad River. Comment
  JEPS63291  Melissa officinalis Joseph P. Tracy 1925-8-16 7232 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC12369  Mentha canadensis C. E. Fellows 1970-10-27 376 Humboldt Banks of Mad River 1/8 mi. W of Lindsey Creek Comment
  UC1225836  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt along Eel River Grizzly Bluff; Eel River 18 Comment
  UCR123947  Mentha pulegium George K. Helmkamp, E. A. Helmkamp 2001-7-8 6987 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC59  Mentha pulegium J. Wendell Howe 1931-6-19 Humboldt Redway Comment
  JEPS42754  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  UCD117673  Menziesia ferruginea T. I. Storer 1931-7-1 2251 Humboldt Coast. Comment
  BLMAR115  Micranthes californica Jennifer Anthony-Wheeler 1995-3-15 115 Humboldt King range, growing on N.end of campground shaded under white oak 121 Comment
  SEINET202280  Micropus californicus var. californicus J. P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1239516  Microseris bigelovii Joseph P. Tracy 1927-6-8 8117 Humboldt Trinidad 3 Comment
  CAS-BOT-BC348948  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda. Along South Fork of Eel River 121 Comment
  CAS-BOT-BC349177  Microseris elegans K. L. Chambers 1969-5-25 2924 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  UC582735  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1935-6-23 3973 Humboldt French Camp Ridge Comment
  HSC58707  Microseris nutans Griswold, Butler 1979-7-12 7149 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  HSC17187  Microsteris gracilis Elrid H. Spinas 1948-5-15 26 Humboldt Along rd. to Gouse Mtn. Lookout, 1 mi. from Hwy. 299 Comment
  UC582607  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  HSC20687  Mimulus aurantiacus var. aurantiacus R. Spellenberg 1965-6-14 1136 Humboldt Hwy. 299, 1 mi. E of Blue Lake Comment
  HSC27389  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson 1970-10-31 287 Humboldt Beside railroad tracks at the N end of the Scotia Bluffs Comment
  HSC55989  Mimulus breweri Overton, Butler 1979-7-31 11404 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC100668  Mimulus cardinalis Carl C. Marshall Jul 1887 438 Humboldt Eel River Valley. Comment
  UC169014  Mimulus floribundus Harley P. Chandler June, 1901 1481 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 304 Comment
  UC147914  Mimulus grandis J. P. Tracy 1900-8-5 911 Humboldt immediate vicinity Eureka 0 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC535723  Mimulus inodorus Eleanor Armstrong 1934-8-18 1138 Humboldt Richardson Grove 121 Comment
  JEPS10789  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA54140  Mimulus layneae H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail. 1524 Comment
  HSC20780  Mimulus moschatus J. P. Tracy 1935-7-23 14165 Humboldt Trinity Summit: lower end of Brett Hole 1585 Comment
  HSC55609  Mimulus moschatus Overton, Butler 1979-7-23 9492 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC56038  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11603 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1103330  Mimulus primuloides Doris Kildale Aug. 1925 Humboldt Waterdog Lake Trinity Summit 1828 Comment
  HSC72697  Mimulus pulsiferae Gail Newton 1980-6-24 583 Humboldt Near Ladder Rock 1570 Comment
  HSC96198  Mimulus pulsiferae Kaylea Eickhoff, Cara M. Witte 2005-6-15 11 Humboldt 14.1 mi. S of Hwy. 299 on NF1, 0.25 mi. NE of Grouse Mtn. 1400 Comment
  HSC73751  Minuartia douglasii M. A. Baker 1980-7-15 2945 Humboldt Near Whiting Ridge. 1341 Comment
  CAS-BOT-BC388623  Minuartia douglasii Doris K. Kildale 1926-5-9 1986 Humboldt Kneeland Prairie - summit 853 Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  HSC74236  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2794 Humboldt Near Red Mtn. 1341 Comment
  HSC55344  Mitella caulescens Griswold, Butler 1979-7-12 7210 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC48149  Mitella caulescens Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay - Near Boulder Cr. Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC97461  Moehringia macrophylla C. Witte 2007-5-21 51 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA43889  Monardella odoratissima subsp. glauca H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain 1524 Comment
  JEPS51853  Monardella odoratissima subsp. pallida Hilda W. Grinnell 1932-7-19 26 Humboldt Near Camp McKay on South Fork Mountain Comment
  HSC40852  Monardella odoratissima subsp. pallida Thomas W. Nelson 1976-7-9 2997 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  HSC98984  Monardella sheltonii Cara Witte 2007-7-27 604 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 Comment
  UCD125243  Monardella sheltonii Joseph P. Tracy 1947-7-5 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs. 1158 Comment
  RSA0022806  Monardella villosa Carl B. Wolf 1937-8-13 9223 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS62396  Monardella villosa subsp. villosa W. L. Jepson 1932-7-28 16433 Humboldt Dyerville 88 Comment
  JEPS62397  Monardella villosa subsp. villosa W. L. Jepson 1927-7-3 12370 Humboldt Garberville South Fork Eel River 365 Comment
  UC479138  Monardella villosa subsp. villosa Marcus E. Jones, A. M. 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  UC577394  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15426 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
  UC161061  Montia diffusa Joseph P. Tracy 1911-7-7 3404 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC444801  Montia diffusa Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2615 Humboldt Above Van Duzen River, 1 mile below Dinsmore's. 762 Comment
  HSC99495  Montia fontana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 155 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  HSC55129  Montia parvifolia G. L. Clifton, Terry Griswold 1979-8-1 11934 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  RSA183637  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 miles S of Bridgeville, Comment
  UC503092  Morella californica Joseph P. Tracy 1931-5-1 9332 Humboldt Northern Coast Ranges, Downs Prairie Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  CAS-BOT-BC101665  Myrica californica V. Rattan s.n. Humboldt unspecified Comment
  JEPS30068  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  SEINET3155577  Myrica californica J. W. Johnson 1961-11-27 1431 Humboldt Arcata; along the trail on the Hunt Farm, Samoa Peninsula. Comment
  HSC77886  Myriophyllum aquaticum Jim McBride 1978-5-11 546 Humboldt McKinleyville, behind Bigfoot Gas Station Comment
  HSC77873  Myriophyllum sibiricum Ted Jacobson 1975-11-3 Humboldt Stone Lagoon 0 Comment
  HSC77912  Myriophyllum spicatum Bruce Hulberg 1977-10-23 771023 .17 Humboldt Fish Lake Comment
  HSC96212  Navarretia capillaris April A. Allard, Gregory O'Connell 2005-6-15 12 Humboldt NE of Grouse Mtn. 1447 Comment
  UC23651  Navarretia intertexta subsp. propinqua C. C. Marshall 1888-1 Humboldt Comment
  JEPS70369  Navarretia leucocephala subsp. bakeri Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle Yager Creek and North Yager Creek (East Ranch) 762 Comment
  UC907952  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC133639  Navarretia linearifolia subsp. pinnatisecta Joseph P. Tracy 1908-6 2797 Humboldt opposite Buck Mountain (Valley of Van Duzen River, along Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  POM182444  Navarretia tagetina Chestnut, E. R. Drew 1888-7-23 s.n. Humboldt Hy-Am-Pom [=Hyampom, Trinity Co?] Comment
  CHSC19477  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles north of Willow Creek along road on east side of Trinity River. Comment
  HSC13589  Nemophila menziesii D. E. Anderson 1965-4-24 3532 Humboldt Along Titlow Hill Rd. Comment
  HSC48844  Nemophila parviflora Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 43 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  JEPS2982  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  UC1239747  Nemophila parviflora Joseph P. Tracy 1906-6-10 2484 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC100498  Nemophila parviflora Carl C. Marshall Mar 1886 146 Humboldt About Arcata. Comment
  UC1239746  Nemophila parviflora Joseph P. Tracy 1906-4-15 2409 Humboldt near Anderson's Ranch (Bald Mt., region about Humboldt Bay, Northern Coast Region); Northern Coast Region, Humboldt Bay region, Bald Mt. 0 Comment
  HSC97178  Nemophila parviflora var. austiniae Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 13 Humboldt 1 mi. east of Hwy. 299 on Forest Service Rd. NF1; Grouse Mountain Meadow 1585 Comment
  JEPS12383  Nicotiana quadrivalvis Joseph P. Tracy 1916-9-5 4764 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  JEPS12382  Nicotiana quadrivalvis Lincoln Constance 1934-6-18 896 Humboldt border North Dyerville Flat (near South Fork Railroad Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC1196162  Nicotiana quadrivalvis Joseph P. Tracy 1940-10-17 16769 Humboldt 2 to 5 mi e South Fork (along Eel River); Eel River 45 Comment
  HSC77938  Noccaea fendleri subsp. californica Jimerson, D. K. Imper 1982-5-17 1434 Humboldt Near Ashfield Ridge. 822 Comment
  RSA176510  Noccaea fendleri subsp. glauca Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 854 Comment
  SEINET178324  Notholcus mollis Joseph P. Tracy 1914-9-13 4626 Humboldt Gutters and wet places along streets. 61 Comment
  HSC41308  Notholithocarpus densiflorus Brad Klipfel 1974-7-23 471 Humboldt Horse Mountain Comment
  HSC31494  Notholithocarpus densiflorus var. densiflorus Steve Selva, Roger Jensen 1974-8-27 83 Humboldt Along Hwy. 299, approx. 10 mi. E of Blue Lake Comment
  CAS-BOT-BC142298  Oemleria cerasiformis Doris K. Kildale 1927-3-26 2996 Humboldt Warren Creek, Lower Mad River Comment
  JEPS44827  Oemleria cerasiformis W. L. Jepson 1902-7-1 1974 Humboldt Redwood Creek; Hupa Road Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  UCD81683  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  HSC12756  Oenothera villosa subsp. strigosa M. J. Athey 1970-10-12 10 Humboldt Trinidad, at the entrance to Luffenholtz Beach parking lot Comment
  CHSC70028  Oenothera wolfii David K. Imper 1988-8-15 Humboldt Hoopa Square, just n of junction Hwy 299 and Big Hill Rd., E side of 299, S of Sawdust Burner. Roadside. 152 Comment
  HSC102088  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 991 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS11679  Orobanche californica subsp. californica Joseph P. Tracy 1924-8-3 6761 Humboldt Big Lagoon. Comment
  CAS-BOT-BC500261  Orobanche uniflora subsp. occidentalis Doris K. Kildale 1927-5-20 3216 Humboldt Bug Creek 792 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
  HSC48745  Osmorhiza berteroi Brad Klipfel 1973-6-16 82 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  JEPS14241  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  UC906649  Osmorhiza occidentalis Joseph P. Tracy 1946-5-19 17351 Humboldt Kneeland Prairie 762 Comment
  UC176987  Oxalis albicans subsp. pilosa Joseph P. Tracy 1912-6-9 3682 Humboldt Alton Northern Coast Ranges 30 Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  HSC16708  Oxalis oregana D. E. Anderson 1963-3-1 2370 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  HSC34809  Oxalis oregana John Palmer 1975-4-9 298 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC79477  Oxalis oregana Kenneth Clark 1980-3-23 531 Humboldt Alluvial terrace of S fork Dead Man's Gulch. 53 Comment
  SEINET12183670  Oxalis oregana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -290 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges 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
  UC725500  Oxalis trilliifolia A. A. Heller 1923-7-10 13787 Humboldt Humboldt Camp between Scotia and Pepperwood Comment
  HSC96581  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Rd., Hely Creek watershed 363 Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  UC187238  Panicum capillare Joseph P. Tracy 1908-6 2929 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET3133169  Panicum lanuginosum var. fasciculatum R. W. Spellenberg 1966-9-8 1630 Humboldt Bank of S. Fk. Eel River at Hwy. 101, 5 mi S of Barberville Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CDA15537  Parentucellia viscosa G. F. Hrusa 1998-7-5 14705 Humboldt Klamath Ranges; Hwy 299, N side at summit of pass W of Willow Creek. Comment
  JEPS4478  Parentucellia viscosa Joseph P. Tracy 1923-6-18 6284 Humboldt 1 mi s of point Cape Mendocino; Northern Coast Ranges 152 Comment
  POM230334  Parentucellia viscosa J. T. Howell 1937-7-31 13719 Humboldt 3 miles west of Korbel, Comment
  UCSB23368  Parentucellia viscosa Haller, John 1967-6-17 Humboldt Coastal dunes at Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata 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
  JEPS10346  Pedicularis densiflora Lincoln Constance 1934-6-7 832 Humboldt Johnson Prairie; Bull Creek Region, South Fork Eel River Comment
  HSC20922  Pedicularis densiflora P. W. Shields May 1955 Humboldt 5 mi. W of Willow Creek Comment
  HSC50938  Pedicularis semibarbata G. L. Clifton, Walter Overton 1979-6-3 3760 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  UC1173740  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mt 1524 Comment
  UC1299764  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt e slope Mule Slide (Mt Lassic area a little s of Blue Ridge); Mt Lassic area Comment
  HSC55832  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-25 10748 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC54203  Penstemon deustus Terry Griswold, Marvin Butler 1979-7-12 7243 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC70524  Penstemon deustus Gail Newton 1980-7-15 1587 Humboldt Near Sims Mtn. 1311 Comment
  RSA60491  Penstemon deustus subsp. deustus John H. Thomas 1949-6-12 902 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  RSA33403  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1925-5-30 860 Humboldt Bucilana Bridge. Comment
  UC146234  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1908-6 2804 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC673098  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (on river bar) 152 Comment
  JEPS5714  Penstemon newberryi var. berryi W. L. Jepson 1902-7-16 2107 Humboldt Trinity Summit 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
  UC168978  Penstemon newberryi var. berryi Joseph Burtt Davy and Walter C. Blasdale Jun 21-23 1899 5860 Humboldt Trinity Summit North Coast Ranges Comment
  RSA46686  Penstemon purpusii Doris K. Kildale 1937-7-18 15141 Humboldt Horse Mt. Comment
  HSC33659  Pentagramma triangularis M. Wetherwax 1975-6-1 174 Humboldt Along Butler Valley Rd. 0.5 mi. past the bridge over the Mad River Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  UC1197318  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1948-9-5 18167 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1197125  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1914-10-11 4636 Humboldt Ricks Prairie Northern Coast Region, Eureka 0 Comment
  UC314589  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-10-28 6588 Humboldt Bald Mt. Northern Coast Ranges 762 Comment
  UC642345  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC56012  Perideridia parishii subsp. latifolia Gilbert Muth 1979-7-31 11495 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC70535  Perideridia parishii subsp. latifolia Gail Newton 1980-7-20 1643 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC419192  Persicaria maculosa L. R. Abrams 1918-6-16 7193 Humboldt Willow Creek Comment
  HSC6050  Petasites frigidus var. palmatus C. O. Baker 1962-3-22 6 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  UC175181  Petasites frigidus var. palmatus Joseph P. Tracy 1913-3-9 4014 Humboldt near Hydesville (along Van Duzen River); Northern Coast Region, Van Duzen River 60 Comment
  HSC37415  Phacelia bolanderi Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 517 Humboldt Along Lost Man Creek. 38 Comment
  HSC64163  Phacelia bolanderi J. O. Sawyer, K. A. Sawyer 1979-6-24 3407 Humboldt Slopes alongside Aikens Creek. 366 Comment
  OBI77760  Phacelia bolanderi Rimo Bacigalupi, G. T. Robbins 1954-6-28 4657 Humboldt Trinity River, 2 mi N of Hoopa, Hoopa Valley Indian reservation 91 Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  UC582693  Phacelia bolanderi Joseph P. Tracy 1937-6-20 15341 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  UC666549  Phacelia bolanderi G. L. Stebbins Jr. 1942-6-1 3275 Humboldt along river 2 mi n Orleans; Klamath River Comment
  JEPS47303  Phacelia californica L. R. Heckard and R. Bacigalupi 1964-7-28 1428 Humboldt about 1 mi e ocean (where Petrolia-Ferndale first reaches the beach) Comment
  UC1222900  Phacelia mutabilis Joseph P. Tracy 1950-6-15 18778 Humboldt 5 mi n Harris; Mail Ridge Comment
  UC1199109  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3624 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  UC562570  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1936-6-9 14876 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1228236  Phacelia nemoralis subsp. oregonensis C. R. Bell 1951-5-4 1098 Humboldt bank below US Hwy 101 2.9 mi n Mendocino County line Comment
  UCD89189  Phalaris minor A. H. Murphy 1951-6-6 s.n. Humboldt W Roscoe at Upper Mattole. Comment
  HSC100586  Philadelphus gordonianus Carl C. Marshall Jul 1885 91 Humboldt Mountains near streams. Comment
  CAS-BOT-BC76561  Philadelphus lewisii L. R. Abrams 1918-6-16 7200 Humboldt Willow Creek Comment
  SEINET12219858  Philadelphus lewisii subsp. californicus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  HSC97276  Phleum alpinum M. Mesler 2007-7-15 783 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  HSC56081  Phlox diffusa G. L. Clifton, Griswold 1979-7-31 11765 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS71120  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  POM210091  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC78144  Picea breweriana Henry M. Pollard 1947-9-1 s.n. Humboldt North side of Somes Peak nr. Orleans 1618 Comment
  JEPS46729  Picea sitchensis J. P. Tracy Feb. 1901 Humboldt Humboldt Bay Comment
  SEINET5334460  Picea sitchensis W. D. Billings 1940-6-28 1355 Humboldt 1/4 mile north of Trinidad Head Comment
  UC1134104  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UC1585370  Pinus contorta subsp. contorta R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 15 Humboldt w of Eureka (0.5 km s of Hwy. 255 on New Navy Base Rd. on North Spit of Samoa Peninsula, unstabilized dune system); North Spit Samoa Peninsula 5 Comment
  UC55650  Pinus contorta subsp. contorta Harley P. Chandler May 1901 1151 Humboldt Samoa North Coast Ranges, Humboldt Bay, Samoa 3 Comment
  HSC37669  Pinus jeffreyi R. Sutherland 1967-8-27 27 .876 Humboldt Elk Ridge, Bulk Collection # 107 716 Comment
Read comments
Apr 30 2013
  HSC54534  Pinus monticola Overton, Butler 1979-7-23 9483 Humboldt Near Horse Mtn. Creek 1326 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  UC502910  Pinus muricata Joseph P. Tracy 1929-11-3 8685 Humboldt 1 1/2 mi e and ne Trinidad; Northern Coast Region 60 Comment
  CAS-BOT-BC79031  Pinus ponderosa Doris K. Kildale 1927-5-5 3108 Humboldt Elk Ridge Comment
  HSC104336  Piperia candida James Regan, Humboldt Redwood Co., LLC 2016-7-1 29 Humboldt Bear River, at Nelson and Harmonica Creeks. 40.38939 N, -124.084639 W; 427 Comment
  UC1186480  Plagiobothrys bracteatus John H. Weiler and A. P. Nelson 1960-6-28 60250 Humboldt vernal pool on floodplain of river 3.6 mi w Humboldt-Trinity County line; Van Duzen River Comment
  UC525608  Plagiobothrys bracteatus Joseph P. Tracy 1927-5-14 8029 Humboldt moist low place at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC667003  Plagiobothrys bracteatus Joseph P. Tracy 1939-5-14 16287 Humboldt by spring Van Duzen Valley, Dinsmore's 731 Comment
  UC526809  Plagiobothrys nothofulvus Joseph P. Tracy 1927-3-27 7847 Humboldt warm grassy slopes near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS60994  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-9 14905 Humboldt Upper Mattole Valley 121 Comment
  JEPS60998  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15335 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  JEPS60995  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges 91 Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  UC1222207  Plagiobothrys scouleri Joseph P. Tracy 1946-5-19 17535 Humboldt near Ashfield; Kneeland Prairie 822 Comment
  UC54756  Plagiobothrys tenellus Harley P. Chandler May, 1901 1255 Humboldt Redwood Belt/Region North Coast Ranges 152 Comment
  SEINET12275926  Plagiobothrys trachycarpus J. P. Tracy 1942-1 17355 Humboldt 1 mi NE of Garberville 305 Comment
  UC1196130  Plantago elongata Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16660 Humboldt w of Table Bluff 6 Comment
  UC1196145  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  SEINET12342198  Plantago erecta J. P. Tracy 1950-1 18730 Humboldt Bear River Ridge 610 Comment
  JEPS7136  Plantago lanceolata Lincoln Constance 1934-5-27 700 Humboldt s end Dyerville Bridge (on South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  UC28010  Plantago lanceolata J. Burtt Davy 1899-6-16 5553 Humboldt near Scotia; North Coast Ranges Comment
  HSC37567  Plantago maritima J. D. Ackerman 1975-6-10 464 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  RSA68979  Plantago maritima F. W. Peirson 1923-7-11 3857 Humboldt Flats north of Eureka. Comment
  BLMAR322  Plantago subnuda Jennifer Wheeler 2002-8-9 322 Humboldt Lost Coast Headland, Brackish creek edge of south side Guthrie creek 3 Comment
  HSC27019  Platanthera dilatata var. leucostachys Brad Klipfel 1973-8-9 266 Humboldt Big Lagoon County Park Comment
  HSC48856  Platanthera dilatata var. leucostachys Brad Klipfel 1973-7-15 215 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA12563  Platanthera leucostachys Carl B. Wolf 1934-7-2 5876 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC1409180  Platanthera leucostachys Robert F. Thorne and P. Everett 1965-8-7 35172 Humboldt s end Big Lagoon 1 Comment
  UC176370  Platanthera leucostachys Joseph P. Tracy 1912-7-31 3901 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  UC275576  Platanthera sparsiflora Joseph P. Tracy 1923-6-24 6369 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  BLMAR62  Platystemon californicus Jennifer Anthony-Wheeler 1994-4-6 62 Humboldt Samoa/manilla dunes, growing scattered throughout the dune mat 12 Comment
  SFV18500  Platystemon californicus A. M. Deshais 2002-4-12 36 Humboldt Manila Dunes. Comment
  POM149391  Platystemon californicus var. californicus Joseph P. Tracy 1904-4-24 2020 Humboldt Sand dunes of ocean beach at Humboldt Bay, Northern Coast Region. Comment
  JEPS4812  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1239587  Plectritis congesta Joseph P. Tracy 1921-6-12 5814 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC95648  Plectritis congesta Andrea Pickart 2002-4-3 34 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  UCD137534  Plectritis congesta R. N. Raynor 1935-1 s.n. Humboldt Exact location unknown. Comment
  HSC97358  Pleuricospora fimbriolata Rudolf W. Becking 1972-6-30 Humboldt Fish Lake area, Orleans. Bulk Collection 31 762 Comment
  RSA10057  Pleuropogon refractus Joseph P. Tracy 1932-7-14 10539 Humboldt Corral Prairie 1524 Comment
Read comments
Aug 15 2009
  UC1258214  Pleuropogon refractus Paul But 1975-6-1 P 12 Humboldt about 3 mi n of Eureka (along Jacoby Creek Road); Jacoby Creek Comment
  SEINET11680859  Pleuropogon refractus J. P. Tracy 1951-1 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  CAS-BOT-BC254897  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC10813  Poa confinis J. R. Woodside 1963-4-20 28 Humboldt 1 1/4 mi. N of Fairhaven. Comment
  CHSC10126  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt On a dune, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC1132656  Poa douglasii H. S. Yates 1936-6-16 5650 Humboldt 1/2 mi sw Samoa; Eureka Quadrangle 6 Comment
  CAS-BOT-BC255848  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  CAS-BOT-BC254282  Poa macrantha S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  HSC38923  Poa macrantha Linda M. Barker 1976-5-13 1491 Humboldt 3 mi. W of Arcata. Comment
  HSC39179  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1222 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCD91919  Poa pratensis P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia. By road through red woods off highway. Comment
  UCD91936  Poa pratensis A. Murphy 1951-4-19 s.n. Humboldt Tooby and Prior Ranch. Blocksburg. 457 Comment
  UC589883  Poa pratensis subsp. pratensis H. S. Yates 1936-6-17 5703 Humboldt lower nw slope Buck Mt; South Fork Peak Quadrangle 792 Comment
  UCD90330  Poa secunda A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3478 Humboldt Head of South Yager Creek, near Yager. Comment
  UCD90874  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit. Comment
  SEINET200570 Image available Poa trivialis J. P. Tracy 1909-6-13 2998 Humboldt On Mad River, 5 miles from its mouth, on damp banks in partial shade. 30 Comment
  SEINET2474044 Image available Poa unilateralis Joseph P. Tracy 1910-4-24 3124 Humboldt Sand dunes of Ocean Beach at Humboldt Bay. Comment
  SEINET200571 Image available Poaceae Joseph P. Tracy 1926-6-12 7587 Humboldt Near Orick ,at Davison's Ranch . shady moist ground, Introduced. Comment
  UCD52744  Podagrostis humilis Joseph P. Tracy 1939-7-9 16344 Humboldt Snow Camp. 1432 Comment
  OBI13588  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town Comment
  HSC77513  Polycarpon tetraphyllum K. Berg 1984-5-6 567 Humboldt Stone Lagoon Spit. Comment
  HSC55269  Polygonum douglasii Overton, Butler 1979-8-2 12642 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET3405797 Image available Polygonum douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Trinity Summit, open places at Corral Prairie 1585 Comment
  UC175842  Polygonum douglasii Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  UC205478  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1919-9-18 5236 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC109187  Polygonum paronychia D. E. Breedlove 1962-6-7 3035 Humboldt 1.5 mile south of Samoa on peninsula on western side of Humboldt Bay. Comment
  HSC38939  Polygonum paronychia Linda M. Barker 1976-5-13 1487 Humboldt 3 mi. W of Arcata. Comment
  RSA191950  Polygonum paronychia Robert F. Thorne 1957-9-3 19013 Humboldt Little River Beach, few miles S of Trinidad. Comment
  RSA286307  Polygonum paronychia Robert F. Thorne 1974-7-29 45080 Humboldt Samoa Dunes. Comment
  HSC97963  Polygonum polygaloides subsp. kelloggii Cara Witte 2007-6-13 264 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  CAS-BOT-BC421007  Polygonum spergulariiforme H. E. Parks; J. P. Tracy 1930-9-15 0767 Humboldt Bald Hills, Kneeland Comment
  HSC54663  Polygonum spergulariiforme Overton, Butler 1979-7-25 9905 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  CAS-BOT-BC76875  Polypodium glycyrrhiza M. S. Jussel 1931-5-2 94 Humboldt Sylvandale, 8 miles N of Garverville. Comment
  CAS-BOT-BC76841  Polypodium glycyrrhiza Volney Rattan 1903-1-1 s.n. Humboldt Above Mad River. Comment
  HSC67085  Polypodium glycyrrhiza Richard Spjut 1980-5-20 6199 Humboldt 2 mi. W of Willow Creek along Hwy. 299 below Boise Campground near stream 305 Comment
  UC197909  Polypodium glycyrrhiza Joseph P. Tracy 1913-3-9 4023 Humboldt Hydesville; Northern Coast Region 30 Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  SEINET181191 Image available Polypodium scouleri Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15047 Humboldt 20 miles north of Eureka Comment
  SEINET3111376  Polypodium scouleri Unknown 1969-3-30 Humboldt Humboldt State University; Ecol Project site. Comment
  RSA10020  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka. 0 Comment
  RSA10062  Polypogon interruptus Joseph P. Tracy 1930-6-29 8819 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  RSA129382  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  CAS-BOT-BC232593  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove Comment
  CHSC10130  Polypogon monspeliensis Jerry Parker 1968-11-22 241 .1 Humboldt Mckinleyville beach, floor of vernal pond. Comment
  HSC65444  Polypogon monspeliensis J. P. Smith 1973-5-26 6813 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA129378  Polypogon monspeliensis H. S. Yates 1936-6-16 5679 Humboldt 1 mile NE of Samoa 3 Comment
  UC1103192  Polypogon monspeliensis Joseph P. Tracy 1930-10-12 9206 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  UC1440065  Polystichum californicum Danin & H. G. Baker 1960-9-2 658 a Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  HSC102542  Polystichum imbricans M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1533 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  RSA247492  Polystichum munitum Gary D. Wallace 1966-9-12 703 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  RSA693321  Polystichum munitum M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi north of Garberville Comment
  UC1440064  Polystichum munitum Danin & H. G. Baker 1960-9-2 658 c Humboldt ca. 2 mi n of Dyerville (High Rock (on W side of Eel River), along Ave. of the Giants) Comment
  SEINET3874035 Image available Polystichum munitum P. F. Yull 1966-4-14 121 Humboldt Adjacent to Penninsula School, Samoa.; 0 Comment
  UC297845  Potamogeton foliosus H. E. Parks 1923-5-30 1758 Humboldt Eureka Comment
  BLMAR668  Potamogeton nodosus Jennifer Wheeler 2012-10-10 668 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  CAS-BOT-BC454066  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  HSC90640  Potentilla anserina subsp. pacifica Gail Newton 1982-6-10 3605 Humboldt Elk River Wildlife Area, Eureka Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC18732  Potentilla anserina subsp. pacifica D. E. Anderson 1961-9-9 1782 Humboldt Along Hwy. 101 Comment
  HSC97733  Potentilla anserina subsp. pacifica Kevin Thomas 2004-4-7 12 Humboldt Z St., along McDaniel slough Comment
  RSA21017  Potentilla anserina var. grandis Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park. 5 Comment
  HSC82396  Potentilla drummondii Thomas W. Nelson 1979-7-11 5010 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC142025  Potentilla drummondii Doris K. Kildale 1925-8-17 1233 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  CAS-BOT-BC158491  Potentilla gracilis var. gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4849 Humboldt Kneeland Comment
  HSC57029  Prosartes hookeri Overton, Butler 1979-7-24 9653 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC15481  Prosartes smithii K. P. St. John 1965-5-5 12 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  SEINET12050369  Prosartes smithii F. H. Utech 1988-1 88 -284 Humboldt along CA 36 from Bridgeville enroute to Dinsmore Mile Marker 42.00, above Van Duzen River 800 Comment
  UCSB27862  Prosartes smithii Phelps, M. 1972-3-20 Humboldt 0.5 mi. south of Redway on Old Hwy. 101, 1000 yds. from road toward river 182 Comment
  HSC74736  Prunella vulgaris Gail Newton 1981-7-24 2305 Humboldt Near Chaparral Mtn. 1433 Comment
  UC1541658  Prunella vulgaris Harold E. Parks May 1933 4309 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC99544  Prunella vulgaris var. lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 209 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCLA49214  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
  RSA46915  Prunus emarginata Doris K. Kildale 1926-9-5 2620 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  UC492200  Prunus emarginata Joseph P. Tracy 1932-7-15 10603 Humboldt Ridges e of Corral Prairie (Trintiy Summit, Klamath Mountains); Klamath Mountains, Trintiy Summit 1828 Comment
  JEPS34048  Pseudognaphalium californicum Lincoln Constance 1934-6-14 875 Humboldt near Lookout Pt. (w side of Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  HSC37671  Pseudognaphalium luteoalbum R. Sutherland 1976-8-13 30 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  RSA134611  Pseudotsuga menziesii P. C. Everett, B. K. Balls 1959-10-25 23971 Humboldt 7 mi SW from Ferndale along Old Coast Road to Capetown. 564 Comment
  UC1198273  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1943-3-14 17407 Humboldt 5 mi e of Carlotta (open flat by old Strong's District School House) 45 Comment
  UC1585361  Pseudotsuga menziesii var. menziesii R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 25 Humboldt sw of Hoopa (on Bair Rd.); Pine Ridge Summit, Bair Rd. 990 Comment
  UC55958  Pseudotsuga menziesii var. menziesii J. P. Tracy 1901-4-26 1058 Humboldt immediate vicinity of Eureka 0 Comment
  HSC18481  Pteridium aquilinum var. pubescens Jana Kattenhorn 1970-10-24 108 Humboldt H.S.C. Campus, Arcata Comment
  HSC55176  Pteridium aquilinum var. pubescens Gilbert Muth 1979-8-1 12178 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC1162  Pteridium aquilinum var. pubescens R. F. Good 1962-5-23 21 Humboldt Surrounding Arcata 60 Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  UC1197761  Pterospora andromedea Joseph P. Tracy 1947-7-9 17857 Humboldt Horse Mt. 1432 Comment
  UC577353  Pycnanthemum californicum Joseph P. Tracy 1926-10-7 7809 Humboldt w side South Fork of Trinity River opposite Limestairs; South Fork of Trinity River Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  HSC72790  Pyrola dentata M. A. Baker 1980-6-16 1935 Humboldt Near Monks Camp 109 Comment
  JEPS58815  Pyrola dentata Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road West from Hoopa Valley, Northern Coast Ranges 914 Comment
  JEPS58818  Pyrola dentata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC41260  Pyrola dentata Brad Klipfel 1974-7-23 452 Humboldt Horse Mtn., N of the towers Comment
  HSC37825  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2251 Humboldt Tish-Tang campground Comment
  HSC60101  Quercus chrysolepis M. A. Baker 1977-5-8 270 Humboldt Gray's Falls Comment
  SEINET10970825  Quercus chrysolepis Jones 1985-6-6 Jones 112 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, querus Chrysolepis, quercus vaccinifolia habitat 1143 Comment
  CAS-BOT-BC94309  Quercus garryana Henry M. Pollard 1944-9-1 s.n. Humboldt near Orleans Comment
  UC54712  Quercus garryana P. E. Goddard 1901-7-12 68 Humboldt Hupa Comment
  BLMAR208  Quercus garryana subsp. breweri Jennifer Anthony-Wheeler 1996-7-9 208 Humboldt Pilot ridge., growing as main hardwood component of stand 1280 Comment
  POM270132  Quercus garryana var. garryana Lyman Benson 1929-7-11 1758 Humboldt North of Garberville about 10 miles. Comment
  RSA609410  Quercus garryana var. garryana Louis C. Wheeler 1958-8-7 7369 Humboldt Fort Baker Manganese Mine. Comment
  UCD40029  Quercus kelloggii Rodney Gale Myatt 1971-9-17 1109 Humboldt Near Phillipsville, above river. About 8 mi. north of Garberville, along Hwy 101. Comment
  UCD165092  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 42.5 mi. from Garberville along Alderpoint Rd. 481 Comment
  UCD165093  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi. from Garberville along Alderpoint Rd. near the intersection with Highway 36. (Coordinates and elevation estimated by label maker.) 215 Comment
  CAS-BOT-BC104533  Quercus vacciniifolia R. Spellenberg 1990-7-10 10245 Humboldt Extreme E edge county, 8 mi WSW of Sayler at 6 mi S of Berry Summit (on Calif. Hwy. 299) on USFS 1 1371 Comment
  HSC41254  Quercus vacciniifolia Brad Klipfel 1974-6-25 444 Humboldt Horse Mtn. Comment
  HSC41271  Quercus vacciniifolia Brad Klipfel 1974-6-25 417 Humboldt Horse Mtn. Comment
  JEPS38033  Quercus vacciniifolia W. L. Jepson Jul 16 1902-Jul 23 1902 2061 Humboldt trail to the Devil's Backbone Trinity Summit 2133 Comment
  UC1135804  Quercus vacciniifolia A. E. Wieslander 1931-5-19 204 Humboldt near Orleans; Klamath Forest, Hoopa Quad. Comment
  HSC98340  Quercus wislizeni Jimerson, J. Pageau 1979-6-12 540 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC13903  Ranunculus aquatilis var. hispidulus W. C. Blasdale 1896-6-7 Humboldt Grahams Comment
  UC162875  Ranunculus californicus Joseph P. Tracy 1901-4-26 1044 Humboldt e Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  CAS-BOT-BC378924  Ranunculus californicus var. californicus J. P. Tracy 1910-5-8 3132 Humboldt immediate vicinity of Eureka 152 Comment
  UC1103011  Ranunculus flammula J. P. Tracy 1901-5-12 1080 Humboldt immediate vicinity of Eureka 0 Comment
  UC183673  Ranunculus flammula Joseph P. Tracy 1912-7-24 3810 Humboldt Eureka Northern Coast Region 0 Comment
  POM269618  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-30 13499 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon.) 3 Comment
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  HSC26676  Ranunculus muricatus Thomas W. Nelson 1971-5-7 430 Humboldt Dunes at Lamphere property Comment
  SEINET180820  Ranunculus occidentalis var. rattanii Bassett Maguire, R Maguire; C. B. Maguire 1934-6-9 15179 Humboldt Clam Beach 15 mi N of Eureka Comment
  UC1542906  Ranunculus orthorhynchus var. orthorhynchus H. E. and S. T. Parks May 1930 755 Humboldt Laribee Valley Comment
  UC13969  Ranunculus orthorhynchus var. orthorhynchus Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  UC1042328  Ranunculus parviflorus John Thomas Howell 1954-4-25 29153 Humboldt Arcata Comment
  UC1196260  Ranunculus pusillus Joseph P. Tracy 1935-5-25 13845 Humboldt Fort Seward 106 Comment
  JEPS60719  Ranunculus sardous Joseph P. Tracy 1921-7-31 5861 Humboldt Fortuna Northern Coast Ranges 30 Comment
  UC1196271  Ranunculus uncinatus J. P. Tracy 1901-5-12 1076 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC89466  Raphanus sativus P. A. Daly 1986-3-12 104 Humboldt Trinidad Head 61 Comment
  UC870781  Rhamnus californica S. K. Harris and J. P. Tracy 1936-6-10 3254 Humboldt Tracy's Ranch Willow Creek Comment
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  UC61088  Rhamnus californica subsp. californica P. E. Goddard 1901-6-9 19 Humboldt Hupa Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC100477  Rhododendron californicum Carl C. Marshall May 1886 204 Humboldt Woods of Coast-range. Comment
  CAS-BOT-BC56613  Rhododendron macrophyllum Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  RSA69211  Rhododendron macrophyllum A. D. Tenney 1925-04 6020 Humboldt Arcata. Comment
  RSA471000  Rhododendron macrophyllum Anstruther Davidson s.n. Humboldt (?) Hutchinson Comment
  CAS-BOT-BC200383  Rhododendron occidentale var. paludosum Doris K. Kildale 1925-4-19 618 Humboldt Liscom Hill near Essex, Lower Mad River Comment
  HSC47966  Rhododendron occidentale var. paludosum Brad Klipfel 1974-9-17 582 Humboldt Horse Mountain Comment
  UC34924  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  HSC100495  Ribes Carl C. Marshall Apr 1887 395 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC433129  Ribes Milo S. Baker 1926-7-26 186 -'26 Humboldt Bridgeville-Red Bluff Highway, S. Fork Mt. 1066 Comment
  HSC103228  Ribes binominatum Jade Paget-Seekins 2010-6-13 19 Humboldt Groves Prairie. From the campsite next to the prairie walk almost to the end of the prairie, turn right, walk down the slope towards the creek. 1254 Comment
  UC1198921  Ribes binominatum Joseph P. Tracy 1942-6-23 17251 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC1222379  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC92884  Ribes bracteosum Greg de Nevers 2001-4-19 12258 Humboldt Prairie Creek, Redwoods State Park. 91 Comment
  RSA273318  Ribes bracteosum M. A. Baker 1977-4-23 174 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UC902061  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1943-3-21 17412 Humboldt Alton 30 Comment
  HSC103224  Ribes inerme var. klamathense Jade Paget-Seekins 2010-5-20 16 Humboldt Off Forest Route 16 (between Big Bar and Hayfork) , approx. 0.6 miles up the 4N29. 1028 Comment
  UC630510  Ribes laxiflorum H. E. and S. T. Parks 1937-6-4 24004 Humboldt along Prairie Creek at Valley Green Prairie Creek; Valley Green, Prairie Creek Comment
  HSC74138  Ribes lobbii M. A. Baker 1980-7-23 3175 Humboldt Near Orleans Mtn. 1859 Comment
  HSC76263  Ribes lobbii Denis Kearns 1981-7-23 425 Humboldt Near Whiteys Peak. 1524 Comment
  UC154120  Ribes lobbii Joseph P. Tracy 1908-6 2875 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC20314  Ribes menziesii E. W. Styskel 1963-3-3 3 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  JEPS49222  Ribes menziesii Jos. P. Tracy 1909-2-14 2941 Humboldt Eureka 0 Comment
  UC902108  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad 60 Comment
  RSA0021771  Ribes menziesii Doris K. Kildale 1927-2-22 s.n. Humboldt Bucksport, near Eureka. Comment
  RSA0021780  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad. [label says Mendocino but should be Humboldt Co.] Comment
  HSC20280  Ribes roezlii Elrid H. Spinas 1948-5-22 43 Humboldt Horse Mtn. Comment
  UCR270273  Ribes roezlii John F. Emmel 2003-7-30 1799 Humboldt North Coast Range, Redwood National Park, 16.6 road miles southeast of Hwy 101 on Bald Hills Road, c. 0.3-0.4 air mile west of Schoolhouse Peak 823 Comment
  HSC103225  Ribes roezlii var. cruentum Jade Paget-Seekins 2010-6-23 23 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  JEPS49459  Ribes roezlii var. cruentum Joseph P. Tracy 1922-4-30 6041 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  RSA0024586  Ribes roezlii var. cruentum Robert F. Thorne, P. C. Everett 1965-8-5 35142 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC100494  Ribes sanguineum Carl C. Marshall Apr 1885 135 Humboldt Near the coast everywhere. Comment
  UC492209 Image available Ribes sanguineum Joseph P. Tracy 1927-6-12 8155 Humboldt lower slopes Horse Mountain; Northern Coast Ranges 1219 Comment
  RSA0019095  Ribes sanguineum Jim R. Shevock 1978-3-26 1471 Humboldt Along Highway 299. 305 Comment
  HSC49909  Ribes sanguineum var. glutinosum Maralyn O'Meara 1973-2-9 125 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  JEPS1248  Romanzoffia californica Joseph P. Tracy 1923-4-29 6196 Humboldt Kneeland Prairie 762 Comment
  SD129723  Romanzoffia californica Barbara Ertter, Thomas J. Delendick 1987-5-16 6937 Humboldt 3 mi E of Berry Summit on Hwy 299, ca 20 airmiles E of Arcata; base of large volcanic roack on S side of road above Willow Creek 800 Comment
  HSC58652  Rorippa curvisiliqua G. L. Clifton, Terry Griswold 1979-7-31 11719 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS53820  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  CAS-BOT-BC147436  Rosa californica L. R. Abrams 1918-6-16 7161 Humboldt Willow Creek Comment
  CAS-BOT-BC146487  Rosa gymnocarpa Doris K. Kildale 1927-5-13 3176 Humboldt Redwood Creek at Berry's 289 Comment
  HSC74196  Rosa gymnocarpa M. A. Baker 1980-7-23 3167 Humboldt Near Orleans Mtn. 1859 Comment
  POM365829  Rosa gymnocarpa Jane Turner, F. M. Ball 1962-7-10 1143 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC162329  Rosa gymnocarpa Joseph P. Tracy 1911-6-4 3218 Humboldt along river 5 mi from the coast; Northern Coast Region, Little River 121 Comment
  POM275415  Rosa pinetorum Lyman D. Benson 1928-7-12 s.n. Humboldt Clam Beach, Trinidad. 15 Comment
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 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
  UC667034  Rosa pisocarpa Joseph P. Tracy 1939-8-16 16403 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC146878  Rosa rubiginosa Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  CAS-BOT-BC146885  Rosa rubiginosa Carl B. Wolf 1927-8-30 1229 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  CAS-BOT-BC148224  Rosa spithamea Doris K. Kildale; L. B. Kildale 1930-5-24 9549 Humboldt Hoopa Valley 152 Comment
  UCD17678  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-3 53 65 Humboldt California. Humboldt County: Redwood Highway, on road to Williams Grove along Eel River. 6.3 miles north of Miranda. Comment
  JEPS44733  Rubus laciniatus Joseph P. Tracy 1926-11-7 7828 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, along Eel River 60 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-BC147245  Rubus parviflorus L. R. Abrams 1916-7-11 6013 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  HSC89428  Rubus parviflorus P. A. Daly 1984-5-6 1 Humboldt Trinidad Head 61 Comment
  LA37949  Rubus parviflorus Doris K. Gillespie; 1938-8-8 15398 Humboldt Elk River, 6 mi. S. of Eureka Comment
Read comments
May 4 2014
  JEPS44771  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt at Berry's Northern Coast Ranges, Redwood Creek (Redwood Creek) 274 Comment
  RSA74607  Rubus spectabilis E. K. Balls, Lee W. Lenz 1956-6-12 1667 Humboldt Between Willow Creek and Blue Lake. Comment
  CHSC59812  Rubus ursinus Mary Sacks 1977-4-8 3 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  UC154260  Rubus ursinus J. P. Tracy 1909-4-18 2952 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  POM271074  Rubus vitifolius Lyman D. Benson 1929-7-15 1814 Humboldt Clam Beach. Trinidad. Comment
  HSC58183  Rudbeckia klamathensis G. L. Clifton, Griswold 1979-8-2 12271 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70235  Rumex acetosella M. A. Baker 1980-6-8 1898 Humboldt Near Buck Flat. 1554 Comment
  SBBG52989  Rumex acetosella J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, Loleta Comment
  UC672930  Rumex acetosella Joseph P. Tracy 1932-7-14 10530 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC33748  Rumex acetosella A. Montalvo 1975-5-24 278 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC48031  Rumex acetosella Brad Klipfel 1974-5-27 404 Humboldt Horse Mtn. Comment
  JEPS39885  Rumex conglomeratus Lincoln Constance 1934-5-27 696 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  CAS-BOT-BC421747  Rumex conglomeratus Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC79366  Rumex crispus Kenneth Clark 1980-5-10 649 Humboldt Shelter Cove, Point Delgada, on access trail to Western Beach 6 Comment
  UC55521  Rumex obtusifolius Joseph Burtt Davy 1899-7-30 6169 B Humboldt near Ferndale Comment
  HSC99577  Rumex occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 242 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
  JEPS39873  Rumex occidentalis Milo S. Baker 1923-8-4 177 Humboldt s end Stone Lagoon Comment
  CAS-BOT-BC454099  Ruppia cirrhosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1182 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  SEINET5337061  Sagina decumbens subsp. occidentalis J. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay Comment
  HSC90251  Salicornia depressa Jean Hanson 1980-8-28 112 Humboldt Indian (Gunther) Island in Humboldt Bay, Eureka, across from Coast Guard Station within 30 ft. of high tide line Comment
  UC162362  Salicornia virginica Joseph P. Tracy 1911-10-22 3550 Humboldt Eureka Northern Coast Region, Humboldt Bay Region 0 Comment
  CDA39544  Salix alba Gordon, Sylvia and Kai Leppig 2000-4-16 1297 Humboldt Arcata; Arcata March and Wildlife Sanctuary, west bank of Hauser Marsh. Comment
  CAS-BOT-BC103811  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01245 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM361044  Salix exigua H. E. Parks 1931-5-14 958 Humboldt Fernbridge. Eel River. 10 Comment
  POM361045  Salix exigua Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  UC1173601  Salix exigua var. hindsiana Joseph P. Tracy 1935-6-22 13963 Humboldt Eel R. at mouth of Larrabee Creek 45 Comment
  CAS-BOT-BC104095  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104112  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107679  Salix hookeriana Doris K. Kildale 1926-7-18 2389 Humboldt Near mouth of Redwood Creek 15 Comment
  CAS-BOT-BC107713  Salix hookeriana Doris K. Kildale 1927-3-25 3003 Humboldt Near Buckspot School House 50 Comment
  CAS-BOT-BC107740  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107742  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  JEPS12927  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  JEPS12959  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC212999  Salix hookeriana Joseph P. Tracy 1920-2-29 5309 Humboldt Ryans Slough Northern Coast Ranges, around Humboldt Bay 15 Comment
  UC469111  Salix hookeriana Joseph P. Tracy 1931-8-23 9619 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470432  Salix hookeriana Joseph P. Tracy 1927-11-13 8393 Humboldt Little River Northern Coast Region, around Humboldt Bay (sand dunes at mouth) 6 Comment
  UC481268  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon; in sand dunes Comment
  UC481279  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC481335  Salix hookeriana Harold E. Parks August, 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC506395  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on gravel bar farthest upstream (nearest the Blue Slide bridge)) 91 Comment
  UC511977  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1251 Humboldt 2 mi e of Redwood Hwy. Engelhart gravel pit (above Blue Lake Rd., floodplain of Mad River); Mad River Comment
  UC512086  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512098  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1211 Humboldt 1 mi n Samoa (near coast) Comment
  UCD111022  Salix hookeriana Carleton R. Ball; Harold E. Parks and Joseph P. Tracey 1932-5-11 01210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad. Comment
  UC198592  Salix laevigata Joseph P. Tracy 1916-6-19 4722 Humboldt near Forks of Dobbyn Creek; Northern Coast Ranges 182 Comment
  UC490518  Salix laevigata Joseph P. Tracy 1932-5-1 9880 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC1196589  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9794 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC481261  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 991 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  CAS-BOT-BC125223  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-4-16 01099 Humboldt Ferndale, about 16 km. from mouth of Eel River, near sea level Comment
  CAS-BOT-BC128193  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 150 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-BC107601  Salix lasiolepis Joseph P. Tracy; Harold E. Parks 1933-3-19 11006 Humboldt On Van Duzen River, 2 miles west of Bridgeville 228 Comment
  HSC55635  Salix lasiolepis Overton, Butler 1979-7-24 9655 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC96365  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog, E fen edge 3 Comment
  JEPS12897  Salix lasiolepis Joseph P. Tracy 1927-4-10 7887 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  LA208772  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  RSA178542  Salix lasiolepis Joseph P. Tracy 1950-9-22 19374 Humboldt Along Klamath River near Slate Creek. Comment
  UC1222297  Salix lasiolepis Joseph P. Tracy 1950-7-25 19049 Humboldt along Van Duzen R. opposite Buck Mt.; Van Duzen R. 762 Comment
  UC469419  Salix lasiolepis Joseph P. Tracy 1929-3-16 8530 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC504024  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1255 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  CDA39556  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  UCSB11963  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-13 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road 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
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125538  Salix lutea Arnold Tiehm; Brant Rogers 1978-4-27 4046 Humboldt West entrance to Thousand Creek Gorge, 1.2 road miles northeast of Virgin Valley Campground 1463 Comment
  LA208881  Salix melanopsis Harold E. Parks; 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  UC14800  Salix melanopsis Hy-An Pum 1888-7-21 Humboldt Comment
  UC162649  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt near its mouth Willow Creek; Northern Coast Ranges, Willow Creek - tributary of Trinity R 182 Comment
  UC512019  Salix melanopsis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1339 Humboldt pond at Willow Creek (Graham Ranch) near junction with Trinity R.; Willow Creek 152 Comment
  UC519367  Salix melanopsis Joseph P. Tracy 1933-7-20 12805 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  SEINET7545185  Salix melanopsis H. E. Parks 1931-1 0962 Humboldt Van Duzen River between Alton and Carlotta 5 Comment
  CAS-BOT-BC129206  Salix piperi Doris K. Kildale 1928-3-27 4360 Humboldt Freshwater Comment
  HSC20084  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Laribee Ridge, Van Duzen River Comment
  HSC96596  Salix scouleriana Gordon Leppig 2003-2-22 1814 Humboldt Eureka Slough, NE corner of log pond 3 Comment
  SJSU172  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen R 448 Comment
  UC1196700  Salix scouleriana Joseph P. Tracy 1912-2-25 3558 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC126275  Salix sessilifolia C. R. Ball; H. E. Parks; J. P. Tracy 1932-5-17 01337 Humboldt At Willow Creek, (Graham Ranch), near its junction with Trinity River 152 Comment
  HSC37884  Salix sitchensis Thomas W. Nelson 1976-4-3 2286 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC38183  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-5 3283 Humboldt Along S fork of Martins Slough just upstream from Eureka Muni Golf Course Comment
  HSC90400  Salix sitchensis Jean Hanson 1980-3-8 5 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96588  Salix sitchensis Gordon Leppig 2003-2-22 1817 Humboldt Mad River Beach, near parking lot 3 Comment
  UC481385  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  UC490532  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit 1828 Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC504052  Salix sitchensis Jim Davis Apr 25 1933-Apr 27 1933 6 Humboldt around Eureka Eureka Comment
  RSA132831  Sambucus caerulea P. H. Raven, R. Snow 1958-7-20 s.n. Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  RSA303565  Sambucus callicarpa J. R. Shevock 1972-3-26 1472 Humboldt Along Highway 101, near Patrick Pt. 106 Comment
  HSC58141  Sambucus nigra subsp. caerulea Gilbert Muth 1979-8-1 12164 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC34632  Sambucus racemosa var. racemosa R. M. Sullivan 1975-4-9 1 Humboldt 2 mi. S of Trinidad on old Hwy. 101 Comment
  UC1541511  Sambucus racemosa var. racemosa W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  UC902070  Sambucus racemosa var. racemosa Joseph P. Tracy 1949-7-25 18399 Humboldt Trinidad 3 Comment
  RSA86658  Sanguisorba officinalis subsp. microcephala F. W. Peirson 1941-7-28 13102 Humboldt About 10 miles below Patrick's Creek Camp Comment
  HSC45318  Sanicula arctopoides R. A. Vanbianchi 1972-3-29 129 Humboldt Samoa Peninsula,W side, across from public boat ramp Comment
  HSC21629  Sanicula bipinnatifida D. E. Anderson, N. J. Cole 1965-4-13 13 Humboldt 2 1/2 mi. SE of Maple Creek Rd. junction with Bald Hills Road, SE of Korbel Comment
  CHSC35577  Sanicula crassicaulis Jacqueline Greenleaf 1980-5-23 87 Humboldt Near Dinsmores. 430 Comment
  HSC82103  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5264 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  HSC79372  Sanicula crassicaulis Kenneth Clark 1980-3-27 553 Humboldt Above South Fork Dead Man's Gulch 168 Comment
  HSC95100  Sanicula crassicaulis Andrea Pickart 2002-6-30 131 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  HSC102543  Sanicula graveolens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1529 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC39422  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1976-6-15 2731 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  POM160882  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt Willow creek canyon, local in serpentine formation near Ruby Cr. 610 Comment
  UCD128032  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  HSC68997  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 321 Humboldt Near Pistol Spring. 1082 Comment
  HSC81587  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5248 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC642317  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC668103  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC492224  Saxifraga californica Joseph P. Tracy 1927-4-10 7896 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UCSB28675  Saxifraga mertensiana Calhoun, R. 1973-3-26 Humboldt Along Avenue of the Giants, 1 mile from southern junction with US 101, 3 miles north of Garberville 45 Comment
  HSC65984  Saxifragopsis fragarioides Gail Newton 1980-7-23 1751 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC7441  Schoenoplectus americanus C. B. Wolf 1927-8-22 795 Humboldt Big Lagoon Comment
  CHSC92413  Schoenoplectus mucronatus Gordon Leppig 2004-9-1 2196 Humboldt Eel River at Holmes Flat. Gravel bar on east edge of river. UTM Zone 10, 420903E, 447244N. 400 Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  HSC48382  Scirpus microcarpus D. H. Norris May 1970 12465 Humboldt Gold Bluff Beach, Prairie Creek Redwoods State Park Comment
  UC709438  Scoliopus bigelovii Joseph P. Tracy 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  HSC92543  Scoliopus bigelovii S. Morrissette, J. Williams, K. Kopper 1994-3-28 5 Humboldt On Lost Coast Trail, 2.25 mi. S of Bear Harbor Camp in J. Smeaton Chase Grove Comment
Read comments
Mar 9 2013
  SEINET12058060  Scoliopus bigelovii F. H. Utech 1988-3-4 88 -026 Humboldt 12.7 mi E on CA 36 from jct US 101 & Van Duzen River, Grizzly Creek Redwoods, O.R. Cheatam Grove 90 Comment
  BLMAR679  Scrophularia californica Jennifer Wheeler 2013-7-17 679 Humboldt King range, Mattole Beach parking lot 6 Comment
  JEPS6741  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi s Arcata (Fickle Hill) 609 Comment
  SEINET5223991  Scrophularia californica Unknown 2002-8-22 88 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UC175798  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3842 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS62896  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  HSC65853  Sedum radiatum Gail Newton 1980-6-28 736 Humboldt Near Mad River Butte. 1536 Comment
  UC1225751  Sedum spathulifolium Joseph P. Tracy 1948-5-15 17981 1/2 Humboldt along Trinity Highway Willow Creek Canyon (on rocks at the East Fork Willow); East Fork Willow Creek, Willow Creek Canyon 457 Comment
  HSC89507  Sedum spathulifolium var. pruinosum M. Roantree 1985-6-11 89 Humboldt W side of Trinidad Head, W of trail Comment
  CDA32353  Selaginella kraussiana G. F. Hrusa, R. Bencie, L. Bencie, C. & E. Dogwin 2010-12-29 18277 Humboldt North Coast; Forest E of Humboldt St. Univ., above Fern Lake. 47 Comment
  JEPS117941  Selaginella kraussiana Dana York, Adrian York & Noah York 2011-4-2 3019 Humboldt Arcata, eastern edge of Humboldt State University Campus 70 Comment
  SEINET200600  Selaginella oregana J. P. Tracy 1928-4-29 8426 Humboldt Prairie Creek 153 Comment
  UC211248  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  UC249773  Selaginella wallacei Joseph P. Tracy 1924-3-9 6607 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  JEPS37086  Senecio glomeratus Lincoln Constance 1934-6-25 926 Humboldt 4 mi n Dyerville (and <4 mi n?> of n boundary of Humboldt Redwood Park, on Redwood Highway); South Fork Eel River, Bull Creek Region, Englewood Comment
  UC1223022  Senecio glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  HSC39001  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1976-5-31 2653 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  UC1199242  Senecio integerrimus var. major Joseph P. Tracy 1938-6-13 15914 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC302177  Senecio integerrimus var. major Joseph P. Tracy 1926-5-15 7480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA167390  Senecio sylvaticus Joseph P. Tracy 1949-8-11 18467 Humboldt East of headwaters of Redwood Creek, electric power-line southward. Kinsey Ridge south from Grouse Mt., 2 to 6 miles. 1280 Comment
  HSC57671  Senecio triangularis G. L. Clifton, Griswold 1979-7-25 10860 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC82388  Senecio triangularis Thomas W. Nelson 1979-7-11 5030 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  UC581709  Senecio triangularis Joseph P. Tracy 1930-7-16 8934 Humboldt in wet meadow at McKay Camp (South Fork Mountain); , McKay Camp 1676 Comment
  HSC67442  Senecio vulgaris J. P. Smith 1971-10-6 4945 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC6129  Senecio vulgaris J. W. Johnson 1962-4-8 1215 Humboldt Arcata, Mad River Co. Park Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  HSC13034  Sequoia sempervirens T. C. DeCew 1970-11-14 44 Humboldt HSU Campus Comment
  NY64510  Sequoia sempervirens R. R. Wilson 1938-4-14 189 Humboldt Near Redway Comment
  SEINET3876316 Image available Sequoia sempervirens Jack D. Brotherson 1982-7-14 3314 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  UC1134198  Sequoia sempervirens H. L. Person 1933-8-10 Humboldt n of Fortuna; Rohnerville Quad., Holmes-Eureka area Comment
  UC1196922  Sequoia sempervirens J. P. Tracy 1901-1-1 980 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC364784  Sericocarpus oregonensis subsp. oregonensis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  UC526852  Setaria viridis Joseph P. Tracy 1934-8-18 13589 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1541655  Sherardia arvensis Harold E. Parks Jun 1935 4995 Humboldt Trinidad; Spruce Cove Comment
  HSC12661  Sherardia arvensis J. F. Knezevich 1968-5-21 444 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1222508  Sidalcea diploscypha Joseph P. Tracy 1950-6-23 18871 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); , ne of Alderpoint 213 Comment
  CAS-BOT-BC205565  Sidalcea malachroides Volney Rattan 1883-6-30 s.n. Humboldt Mad River Comment
  RSA47159  Sidalcea malachroides Doris K. Kildale 1926-5-16 s.n. Humboldt Horse Mountain Comment
  UC108878  Sidalcea malachroides J. W. Blankinship Jun 17 1893-Jun 20 1893 Humboldt Eureka , Hydesville (Hydesville) Comment
  UC1197964  Sidalcea malachroides Joseph P. Tracy 1937-6-20 15358 Humboldt s Ferndale (Wild Cat Ridge); s of Ferndale, Wild Cat Ridge 457 Comment
  UC1197965  Sidalcea malachroides Joseph P. Tracy 1933-7-21 12819 Humboldt between Van Duzen Yager Creek (Redwood House); between Van Duzen and Yager Creek, Redwood House 762 Comment
  JEPS79986  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  RSA12518  Sidalcea malviflora subsp. asprella Carl B. Wolf 1934-7-3 5918 Humboldt 21 miles from Orick on Weitchpec Rd. common. 152 Comment
  UC1222504  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18738 Humboldt 7 mi s Ferndale (Bear River Ridge); , s of Ferndale 609 Comment
  UC1222505  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18734 Humboldt 7 mi s Ferndale (Bear River Ridge); , s of Ferndale 609 Comment
  UC668134  Sidalcea malviflora subsp. patula Joseph P. Tracy 1936-6-9 14877 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1197968  Sidalcea oregana subsp. eximia Joseph P. Tracy 1932-9-16 10800 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UC205469  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay (around Humboldt Bay) 60 Comment
  UC161013  Silene antirrhina Joseph P. Tracy 1908-6 2801 Humboldt opposite Buck Mountain (Valley of Van Duzen River, in sand bar in river); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  HSC103773  Silene bolanderi M. R. Mesler 2014-6-4 1635 Humboldt Burr Valley Road near Dinsmore 1049 Comment
  POM118650  Silene californica Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC668099  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  JEPS22945  Silene campanulata subsp. glandulosa Volney Rattan 1883-1 Humboldt Hoopa Valley Comment
  UC1618231  Silene gallica Barbara Ertter with Thomas J. Delendick 1987-5-16 6931 Humboldt ca 15 airmi e Arcata (Vista Point just w of Berry Summit on Hwy 299); Vista Point just w of Berry Summit 914 Comment
  CAS-BOT-BC388938  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  JEPS50880  Silene grayi Joseph P. Tracy 1926-6-20 7628 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  POM172672  Silene hookeri subsp. bolanderi Joseph P. Tracy 1913-6-20 4234 Humboldt Lower foothills of Buck Mountain, on its NW slope. 762 Comment
  BLMAR151  Silene laciniata subsp. californica Donald Hazlett 1994-6-7 151 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC57102  Silene laciniata subsp. californica Overton, Butler 1979-7-25 9834 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC4174  Silene laciniata subsp. californica R. Spellenberg 1964-6-16 434 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  UC1198284  Sinapis arvensis J. P. Tracy 1906-6-20 2494 Humboldt immediate vicinity of Eureka 0 Comment
  UC1108989  Sisyrinchium bellum H. E. and S. T. Parks June, 1936 5599 Humboldt Spruce Cove; Trinidad Comment
  HSC13907  Sisyrinchium bellum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  POM299501  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge 33 Comment
  UC666973  Smilacina racemosa Joseph P. Tracy 1938-6-13 15908 Humboldt Horse Mountain 1432 Comment
  RSA46494  Solanum americanum Doris K. Kildale 1926-2-7 1496 Humboldt Big Lagoon. Comment
  HSC59674  Solanum douglasii George Kirn 1977-10-20 Humboldt Eureka Bayfront, 0.5 mi. E of Hwy. 255 8 Comment
  UCD126960  Solanum triflorum Luther Jones 1962-8-10 s.n. Humboldt King River Valley, northwest of Orovada. (Nevada). Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC365437  Solidago elongata H. E. Parks 1931-7-1 01056 Humboldt Trinidad 76 Comment
  CAS-BOT-BC365443  Solidago elongata W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC67892  Solidago elongata J. P. Smith 1973-5-26 6848 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  UC1199321  Solidago elongata Joseph P. Tracy 1932-7-17 10652 Humboldt Trinity Summit 1584 Comment
  UC604624  Solidago elongata Joseph P. Tracy 1938-8-7 16103 Humboldt 5 mi n Garberville; South Fork of Eel River at mouth of Dean Creek 121 Comment
  POM254120  Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt At Samoa. Comment
  SD38300  Solidago spathulata Edith A. Purer 1932-7-27 4147 Humboldt Samoa Comment
  HSC104046  Solidago spathulata M. F. Norman 2015-4-11 7 Humboldt Arcata, Ma-le'l Dunes Comment
  HSC35992  Solidago velutina subsp. californica Thomas W. Nelson, James Nelson 1975-9-1 2190 Humboldt Eel River at High Rock State Park Comment
  HSC6179  Solidago velutina subsp. californica J. P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC365811  Soliva sessilis L. R. Abrams 1918-6-12 7080 Humboldt In street, Eureka Comment
  HSC89522  Sonchus asper M. Roantree 1985-6-10 79 Humboldt W side of Trinidad Head Comment
  HSC89260  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  CDA26260  Spartina densiflora T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  SJSU7904  Spartina spartinae H. T. Harvey 1977-7-5 599 Humboldt tidal salt marsh, Elk River Spit, southerly outskirts of Eureka, Humboldt Bay Comment
  HSC4235  Spergula arvensis R. I. Bonn 1965-5-9 39 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC77898  Spergula arvensis R. D. Modafferi 1965-3-14 8 Humboldt 1.3 mi. S of Trinidad on old Hwy. 101 305 Comment
  HSC83996  Spergula arvensis L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 221 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  HSC90751  Spergularia canadensis var. occidentalis Jean Hanson 1980-6-22 96 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC37994  Spergularia macrotheca Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA12532  Spiraea douglasii Carl B. Wolf 1934-7-2 5906 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  HSC100156  Spirodela polyrhiza Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  JEPS62959  Stachys ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 15 Comment
  UC1239728  Stachys ajugoides var. rigida Joseph P. Tracy 1913-6-20 4217 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  HSC14406  Stachys arvensis William J. Ferlatte 1963-5-5 33 Humboldt Near 11th and B St. Arcata Comment
  HSC81924  Stachys mexicana Thomas W. Nelson, Jane P. Nelson 1979-7-3 4955 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC74423  Stachys rigida Gail Newton 1980-8-10 2046 Humboldt Near Blake Mtn. 1707 Comment
  HSC58104  Stellaria crispa G. L. Clifton, Griswold 1979-8-1 12039 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC89600  Stellaria media M. Roantree 1985-4-28 24 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC95683  Stellaria media Kevin Thomas 2004-3-18 6 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  SEINET12558145 Image available Stellaria nitens Juha Pykala 1987-1 1853 Humboldt Kneeland, Greenwood Heights, N of the house of prof. D. H. Norris 335 Comment
  HSC58059  Stenanthium occidentale G. L. Clifton, Griswold 1979-8-1 11935 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC70500  Stenanthium occidentale Gail Newton 1980-7-20 1618 Humboldt Near Bell Swamps 1426 Comment
  UC204696  Stephanomeria elata Joseph P. Tracy 1918-9-29 5104 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  CAS-BOT-BC375660  Stephanomeria paniculata Doris K. Kildale 1925-8-17 1210 Humboldt Trinity Summit 1828 Comment
  UC205170  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1919-9-14 5187 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  CAS-BOT-BC87609  Streptanthus tortuosus Doris Kildale Gillespie 1931-6-7 10597 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  UC956549  Streptanthus tortuosus Freed W. Hoffman 1949-7-18 2863 Humboldt Red Mountain rd 9.6 mi from Eureka-Red Bluff Highway 1615 Comment
  UC492252  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-7-12 10457 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC57200  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-10 7106 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  JEPS62166  Streptopus amplexifolius var. americanus W. L. Jepson 1902-7-17 2058 A Humboldt trail to Devil's Backbone; Trinity Summit 2133 Comment
  UC154162  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1383 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC56382  Symphoricarpos albus var. laevigatus Griswold, Butler 1979-7-11 6912 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  CAS-BOT-BC99166  Symphyotrichum chilense Carl B. Wolf 1937-9-9 9312 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  HSC39446  Symphyotrichum chilense Linda M. Barker 1976-8-2 1676 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC5047  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata; along the sides of the Lanphere Co. Rd. by Mad River Slough Comment
  HSC75277  Symphyotrichum hendersonii J. O. Sawyer, D. A. Thornburgh 1980-9-9 4078 Humboldt Mill Creek Lake and surrounding meadows Comment
  JEPS35821  Symphyotrichum subspicatum Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8966 Humboldt 9.5 mi n and w, s of Cape Mendocino Petrolia; Cape Mendocino Comment
  UC774604  Symphyotrichum subspicatum Carl B. Wolf 1937-9-14 9355 Humboldt 4 mi n, Redwood Highway Loleta 7 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
  RSA279358  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Hwy. 610 Comment
  UCD86185  Taeniatherum caput-medusae A. H. Murphy 1947-6-7 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC376724  Tanacetum bipinnatum David D. Keck; J. Clausen 1935-6-16 3388 Humboldt Mouth of Little River Comment
  UCSB22982  Tanacetum bipinnatum Haller, John 1967-6-17 Humboldt At Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata Comment
  HSC73247  Tauschia kelloggii M. A. Baker 1980-5-18 1311 Humboldt Near Black Mtn. 1006 Comment
  UC642290  Tauschia kelloggii Joseph P. Tracy 1936-6-21 14995 Humboldt Iaqua 609 Comment
  HSC1597  Taxus brevifolia Francis Winter 1960-5-7 Humboldt Pine Ridge Summit, Hoopa Indian Reservation 671 Comment
  NY17379  Taxus brevifolia J. P. Tracy 1927-3-27 7865 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC463017  Taxus brevifolia E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  CAS-BOT-BC85212  Taxus brevifolia G. A. Coleman 1901-7-28 s.n. Humboldt Near Baise Creek Comment
  HSC32947  Tellima grandiflora Thomas W. Nelson, James Nelson 1973-5-28 960 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC28198  Thalictrum polycarpum Thomas W. Nelson 1971-5-31 454 Humboldt Adjacent to the Mad River N of Dinsmore 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
  JEPS79992  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC5391  Thlaspi californicum Volney Rattan 1882-6-1 s.n. Humboldt at Kneeland Prairie Comment
  JEPS79993  Thlaspi californicum Joseph P. Tracy 1921-5-30 5483 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1222645  Thlaspi californicum Joseph P. Tracy 1951-5-20 19405 Humboldt at serpentine rockpile toward Ashfield Butte Kneeland Prairie; , toward Ashfield Butte 762 Comment
  UC1222644  Thlaspi montanum var. montanum Joseph P. Tracy 1950-6-6 18999 Humboldt on the Albee Road 2 mi s Burr Valley; s of Burr Valley 1158 Comment
  HSC95903  Thuja plicata Will Ferrand 2001-6-17 2 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  NY17207  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG26950  Thuja plicata C. B. Wolf 1930-10-25 1020 Humboldt Blue Lake-Willow Crk Rd (Lord Ellis Rd); 2 mi above Blue Lake 243 Comment
  UCD134112  Thuja plicata T. I. Storer 1931-7-1 2223 Humboldt Near Ferndale. Comment
  UC1198819  Thysanocarpus curvipes Joseph P. Tracy 1933-5-18 12188 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  UC1211979  Tiarella trifoliata var. unifoliata H. W. Grinnell 1932-7-23 49 Humboldt South Fork Mountain; below McKay Camp 1524 Comment
  UC275557  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1924-7-4 6709 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC1224693  Tolmiea diplomenziesii D. E. Anderson and B. D. Rogers 1964-5-1 1564 Humboldt n of Humboldt State College campus (Jolly Giant creek) Comment
  UC1197331  Torilis arvensis subsp. arvensis Joseph P. Tracy 1940-8-3 16692 Humboldt Cathey Ranch near Miranda 30 Comment
  UC549767 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Alder Point, from Alder Point to Dyke Ranch Northern Coast Ranges, Alder Point; Alder Pt., Humboldt Co. 304 Comment
  CAS-BOT-BC377100  Tragopogon porrifolius Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  BLMAR277  Trientalis latifolia Jennifer Anthony-Wheeler 1999-7-30 277 Humboldt Headwaters Forest Reserve, growing in shaded places esp woodlands 548 Comment
  BLMAR75  Trientalis latifolia Jennifer Anthony-Wheeler 1994-6-2 75 Humboldt IAQUA, growing by logging rd in shaded forest 853 Comment
  SEINET11996902  Trientalis latifolia F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -283 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1223516  Trifolium barbigerum Joseph P. Tracy 1933-5-20 12240 Humboldt Petrolia Mattole Valley Comment
  RSA168906  Trifolium barbigerum Joseph P. Tracy 1948-6-13 18039 Humboldt Along Larabee Creek, 7 miles northwest of Blocksburg and where the road comes near trhe creek, halfway between Bridgeville and Blocksburg. Comment
  UC1223494  Trifolium ciliolatum Joseph P. Tracy 1942-5-16 17334 Humboldt vicinity Garberville 152 Comment
  UC1541600  Trifolium ciliolatum Harold E. Parks May 1923 1497 Humboldt Eel River, McCanns Comment
  UC1103441  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1902-6-3 1645 Humboldt near Harris (Spruce Grove); Northern Coast Ranges, Eureka 914 Comment
  HSC15116  Trifolium dubium Harvey Doerksen 1962-5-8 18 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC71438  Trifolium dubium J. P. Smith 1973-5-26 6836 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCD108880  Trifolium dubium W. A. Williams 1951-6-1 s.n. Humboldt Humboldt County. Comment
  HSC40039  Trifolium eriocephalum Thomas W. Nelson, James Nelson 1976-7-1 2890 Humboldt Ridge N of Bear Creek 1494 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
  UC1562633  Trifolium fucatum Barbara Ertter with Thomas J. Delendick 1987-5-16 6932 Humboldt just w Berry Summit (Vista Point, ca 15 air mi e os Arcata, on Hwy 299) Comment
  UC303192  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  RSA168859  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt Salmon Creek Flats, south end Humboldt Bay. Comment
  HSC15218  Trifolium macraei J. W. Johnson 1961-5-27 1386 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  HSC40950  Trifolium microdon Linda M. Barker 1976-6-1 1544 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC160979  Trifolium microdon Joseph P. Tracy 1908-6 2781 Humboldt nw slope Buck Mtn; Northern Coast Ranges 914 Comment
  UC1223319  Trifolium obtusiflorum Joseph P. Tracy 1948-6-13 18060 Humboldt Garberville 243 Comment
  UC1197499  Trifolium oliganthum Joseph P. Tracy 1906-6-10 2471 Humboldt near Wrangleton (Kneeland Prairie); Northern Coast Ranges 152 Comment
  HSC23489  Trifolium pratense R. A. Vanbianchi 1971-9-24 89 Humboldt Comment
  RSA168845  Trifolium variegatum var. variegatum Joseph P. Tracy 1935-5-24 13815 Humboldt Eureka. Comment
  UC1197560  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-5-8 7993 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  HSC15180  Trifolium willdenovii Eugene Andreuccetti 1964-5-2 46 Humboldt Grounds of Tish-Tang Ranger Station Comment
  UC1197532  Trifolium willdenovii J. P. Tracy 1905-4-16 2162 Humboldt Ocean View Cemeter Eureka vicinity 0 Comment
  UC1197533  Trifolium willdenovii J. P. Tracy 1900-6-4 868 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC33757  Trifolium wormskioldii Ron Ralston 1975-5-24 79 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  RSA167422  Trifolium wormskioldii Joseph P. Tracy 1938-6-12 16056 Humboldt Fields Landing. Moist flats along edges of foothills, 2 miles south of town. 6 Comment
  HSC37965  Triglochin concinna Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  CAS-BOT-BC451809  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  JEPS32135  Triglochin maritima Joseph P. Tracy 1933-8-22 12988 Humboldt mouth Eel River; mouth of Eel River 3 Comment
  HSC10921  Triglochin maritima D. E. Anderson 1965-6-10 3787 Humboldt Near E part of Eureka Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC1364374  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-7 581 Humboldt just n. of Carlotta (just w. of CA Hwy. 36) Comment
  UC902042  Trillium angustipetalum Joseph P. Tracy 1949-6-25 18350 Humboldt near Box Camp Trinity Summit 1524 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
  HSC15697  Trillium ovatum D. E. Anderson 1962-3-18 1943 Humboldt Jacoby Creek Comment
  UC275520  Trillium ovatum Joseph P. Tracy 1923-4-15 6186 Humboldt Redwood Creek at Berry's; Northern Coast Ranges, Redwood Creek 274 Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  HSC99354  Trillium ovatum subsp. oettingeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 3 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET3992212  Trillium sessile Unknown 1928-4-29 8418 Humboldt Prairie Creek 152 Comment
  RSA249348  Triphysaria versicolor subsp. versicolor James Payne Smith 1974-5-16 7370 Humboldt Arcata; growing in abundance in the Median strip along Samoa Blvd. near Sunny Brae. Comment
  HSC103096  Trisetum canescens Sydney Carothers 2014-7-3 20 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  RSA10083  Trisetum canescens Joseph P. Tracy 1930-7-16 8916 Humboldt South Fork Mountain 1677 Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  UCD93885  Trisetum canescens R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  HSC13410  Trisetum canescens D. C. Juve 1964-5-16 45 Humboldt 1 mi. N of Tish-tang Ranger Station on Hwy. 96. Comment
  HSC13419  Trisetum cernuum R. D. Modafferi 1965-5-13 99 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC32517  Trisetum cernuum D. E. Anderson, S. Dowty, T. Nelson 1972-6-17 5711 Humboldt McKeown Ranch, N of Dinsmore Comment
  SEINET244120 Image available Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Openings in moist woods 'Newell's Camp' on old Kneeland Prairie Road. 305 Comment
  HSC76431  Triteleia bridgesii Teresa Prendusi 1981-7-9 232 Humboldt Near Cedar Camp 1256 Comment
  HSC98366  Triteleia bridgesii T. Jimerson, J. Pageau 1979-5-24 472 Humboldt Near Orleans 226 Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  CHSC79895  Triticum aestivum Gordon Leppig; Sylvia Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, UTM zone 10, 4525N, 409E. 3 Comment
  UC303180  Ulex europaeus Joseph P. Tracy 1923-11-24 6594 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  HSC41923  Umbellularia californica Ed Cope 1977-4-23 25 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC40104  Umbellularia californica W. L. Jepson 1936-8-7 17856 Humboldt upper Butte Creek, Bear Buttes Butte Creek; , Bear Buttes Comment
  CAS-BOT-BC403928  Urtica dioica subsp. gracilis L. R. Abrams; R. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon south of Orick Comment
  HSC99668  Urtica dioica subsp. gracilis Steven Lee 2004-4-6 10 Humboldt Arcata Community Forest, along Jolly Giant Creek. Comment
  SEINET202729  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. 8 miles below Orleans. 122 Comment
  CAS-BOT-BC193958  Vaccinium cespitosum L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  HSC34153  Vaccinium ovatum Linda M. Barker 1974-5-11 186 Humboldt Redwoods National Park, beside Bald Hills Road 366 Comment
  RSA22543  Vaccinium ovatum H. E. Parks, S. T. Parks, C. R. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  UC154183  Vaccinium ovatum Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  UC719767  Vaccinium ovatum Rogers McVaugh 1941-8-3 6218 Humboldt 1.25 mi s Headquarters Patrick Point State Park Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  HSC31487  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Behind Humboldt State University, Arcata. Comment
  JEPS9386  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia (Scotia Bluff); Northern Coast Ranges, Eel River 60 Comment
  UC212729  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1919-9-18 5230 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  HSC81827  Valeriana sitchensis subsp. sitchensis Thomas W. Nelson 1979-7-11 5027 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  UC1239593  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1937-7-29 15573 Humboldt in meadow at McKay Camp South Fork Mountain 1676 Comment
  CAS-BOT-BC76046  Vancouveria hexandra Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  CAS-BOT-BC76050  Vancouveria hexandra Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta. Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC74645  Vancouveria planipetala M. A. Baker 1980-5-17 1220 Humboldt Near Le Perron Peak 792 Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  HSC97659  Vancouveria planipetala Danny Pineda 2001-5-3 26 Humboldt 3 mi. E of Hwy. 299 on West End Rd. 61 Comment
  UCD95099  Vancouveria planipetala R. N. Raynor 1934-5-7 s.n. Humboldt above Fort Seward. 609 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
  HSC15732  Veratrum insolitum L. K. Weld 1967-7-17 22 Humboldt 0.5 mi. SE of Indian Field Ridge off Hwy. 299 Comment
  HSC74416  Veratrum viride Gail Newton 1980-8-10 2037 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC527058  Veratrum viride var. eschscholzianum L. B. Kildale 1930-8-10 10206 a Humboldt Snow Camp, head of Redwood Creek Comment
  HSC40885  Verbascum thapsus Thomas W. Nelson, Jane Nelson 1976-6-22 2868 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC67839  Verbena lasiostachys J. P. Smith 1971-10-9 5027 Humboldt Mad River above the Fish Hatchery. Comment
  HSC23492  Veronica americana R. A. Vanbianchi 1971-9-10 83 Humboldt Along Fieldbrook Rd., 0.7 mi. from junction with old Hwy. 299 Comment
  RSA0049599  Veronica hederifolia var. triloba Dean Wm. Taylor 2013-5-8 21405 Humboldt Arcata, about the grounds of the Masonic Lodge, on Bayside road east of Highway 101 21 Comment
  HSC99072  Veronica peregrina subsp. xalapensis Cara Witte 2007-6-21 331 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC56355  Vicia americana var. americana Griswold, Butler 1979-7-10 6327 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UCD108778  Vicia benghalensis Rimo Bacigalupi; L. Heckard, J. Weiler 1961-6-23 7838 Humboldt About 1 mile west of Carlotta (or about 1/2 mile east of Hydesville). Comment
  RSA34309  Vicia hirsuta C. Kistner 1935-5-5 s.n. Humboldt Arcata Comment
  HSC38207  Vicia hirsuta Thomas W. Nelson 1976-4-20 2381 Humboldt 12th and B St., Arcata Comment
  SEINET12157875  Vicia hirsuta J. P. Tracy 1944-1 17474 Humboldt slowly spreading in Eureka (same place as # 17428) Comment
  POM92410  Vicia sativa L. R. Abrams 1922-6-25 8238 Humboldt 2 miles south of Fortuna Comment
  HSC31808  Vicia sativa subsp. sativa Donald Spalinger 1974-4-25 22 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  HSC2104  Vicia sativa subsp. sativa C. B. Wolf 1927-8-28 1185 Humboldt Eureka Bay, on the road to Arcata Comment
  RSA750840  Vicia sativa subsp. sativa Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  SEINET9302671  Vicia tetrasperma Unknown 1963-6-2 2693 Humboldt Scattered along roadside in a mixed evergreen forest. Two mi SE of Arcata on road to quarry. Comment
  UCD108796  Vicia tetrasperma Frederica Bowcutt 1989-5-23 1331 b Humboldt Sinkyone Wilderness State Park. Bear Harbor, 2.5 air miles SE of Needle Rock ranch house, 4 air miles SE of Four Corners, 15 air miles SW of Garberville. Old home sites. 12 Comment
  HSC15282  Vicia villosa subsp. villosa D. E. Anderson 1962-5-10 2210 Humboldt Lanphere's Comment
  CAS-BOT-BC263939  Viola adunca Alice Eastwood 1907-4-21 31 Humboldt Trinidad Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  UC707010 Image available Viola californica Milo S. Baker 1946-6-14 11492 Humboldt Miller Spring South Fork Mt.; S Fork of Miller Spring, Humboldt Co. 1524 Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  HSC71037  Viola glabella Thomas W. Nelson 1977-4-20 3329 Humboldt Along USFS Road 1N15 at summit 915 Comment
  SEINET200810 Image available Viola glabella J. P. Tracy 1927-6-12 8153 Humboldt Northern COast Ranges Horse Mountain 1219 Comment
  CAS-BOT-BC536497  Viola glabella W. R. Dudley 1899-6-19 s.n. Humboldt Shady Run -- Scotia Comment
  HSC97729  Viola glabella C. Witte 2007-5-10 22 Humboldt Board Camp. 1/2 miles from National Forest 1, on Forest Service Road 4N38. 1395 Comment
  UC1103561  Viola glabella Joseph P. Tracy 1923-4-8 6178 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC21865  Viola hallii Paul Shields May 1955 Humboldt Kneeland Comment
  HSC39528  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2713 Humboldt Along old trail from look out to Blocksburg 1585 Comment
  UC66205  Viola ocellata Mrs. M. H. Manning Apr. 1901 41 Humboldt near Hupa Comment
  UC1198450  Viola ocellata Joseph P. Tracy 1921-4-24 5452 Humboldt Phillipsville Flat, South Fork of Eel River Phillipsville Flat; Northern Coast Ranges, South Fork of Eel River, Phillipsvill 91 Comment
  CDA36588  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt Arcata; southwest corner of 10th & I Street. Comment
  HSC90070  Viola praemorsa subsp. praemorsa C. Baldwin, A. Hiss, P. Reynolds 1990-4-27 56 Humboldt Titlow Rd., 0.5 mi. S of Hwy. 299; 50 yds. W of Titlow Rd. 854 Comment
  HSC21853  Viola sempervirens John A. Dubois 1962-4-28 2 Humboldt 20 mi. E of Arcata Comment
  RSA412776  Viola sempervirens Dwain L. Goforth 1977-4-23 3 Humboldt 2.5 miles S of Shelter Cove Road. South Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC34797  Viola sempervirens John Palmer 1975-4-9 299 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  POM286646  Viola sempervirens Lyman D. Benson 1928-7-8 378 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  HSC40867  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt 3 mi. W of Arcata Comment
  HSC9836  Vulpia bromoides J. A. Waller 1965-5-16 47 Humboldt Open field near Big Lagoon. Comment
  CAS-BOT-BC184235  Vulpia microstachys var. pauciflora S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3431 Humboldt Northwest slopes of Buck Mountain 822 Comment
  HSC71718  Vulpia myuros M. A. Baker 1980-6-26 2446 Humboldt Near Sims Creek 610 Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  HSC100587  Whipplea modesta Carl C. Marshall Jul 1886 332 Humboldt Mountains. Comment
  UCD136054  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  OBI36373  Wyethia angustifolia David J. Keil 1983-7-1 17267 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  UC582646  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13988 Humboldt French Camp Ridge 1066 Comment
  HSC82417  Wyethia angustifolia Thomas W. Nelson 1979-7-11 5038 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  HSC98069  Wyethia longicaulis Cara Witte 2007-7-19 546 Humboldt Buck Flat. 1482 Comment
  HSC56947  Xerophyllum tenax Overton, Butler 1979-7-23 9437 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment



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