Search Results — 2000 specimen records retrieved (1355 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC31139  Abies concolor J. O. Sawyer 1970-6-24 2272 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  CAS-BOT-BC78054  Abies grandis L. R. Abrams 1916-7-18 6032 Humboldt Arcata to Trinidad Comment
  HSC55034  Abies procera Overton, Butler 1979-7-31 11480 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC33747  Abronia latifolia A. Montalvo 1975-5-24 286 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC59462  Abronia latifolia M. A. Ericksen 1979-5-18 295 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  SD41405  Abronia latifolia Edith A. Purer 1932-7-30 4680 Humboldt South of Orick Comment
  UCR32087  Abronia latifolia David J. Keil 1983-7-1 17287 Humboldt Pacific Coast, c. 5 mi. west of Petrolia along Mattole Road 225 Comment
  CDA40641  Acaena novae-zelandiae G. D. Barbe, E. C. Whitney & Warren Simas 1978-7-26 2413 Humboldt East of Arcata airport between Fieldbrook and Crannell; Vic Guynup property. 0 Comment
  CAS-BOT-BC330541  Acer circinatum Doris K. Kildale 1927-5-13 3134 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC28587  Achillea millefolium David D. Keck 1938-8-5 4775 Humboldt Big Lagoon Comment
  HSC102524  Achillea millefolium M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1511 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC57890  Achillea millefolium Overton, Butler 1979-7-31 11450 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC28578  Achillea millefolium J. Clausen 1949-6-23 2159 Humboldt Benbow, 2 miles S of Garberville. Comment
  UC419037  Achlys californica H. E. Parks May 1930 752 Humboldt along Van Duzen R. Van Duzen R. Comment
  HSC3335  Achlys triphylla H. E. Parks, S. T. Parks May 1930 752 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC400023  Achlys triphylla Wayne Roderick 1967-7-22 s.n. Humboldt Ca. 5 miles e. of Carlotta 45 Comment
  RSA21086  Achlys triphylla C. B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  UC526666  Achnatherum lemmonii Joseph P. Tracy 1927-5-14 8000 Humboldt near south fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC526756  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC37971  Acmispon micranthus Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  UCD137891  Acorus calamus Malcolm A. Nobs; S. Galen Smith 1949-8-9 1242 Humboldt on south side of the town of Blue Lake. Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC391606  Actaea rubra Volney Rattan 1883-1-1 s.n. Humboldt Mad Riv. Comment
  SDSU19197  Adelinia grandis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3007 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  RSA416321  Adenocaulon bicolor Thekla Mohr 1918-07 s.n. Humboldt Eel River. Comment
  UC203330  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  CAS-BOT-BC62298  Adiantum aleuticum Mrs. H. C. Cantelow 1935-6-13 935 Humboldt E. of Arcata Comment
  UC197917  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville; Northern Coast Region 30 Comment
  UC418981  Adiantum aleuticum H. E. and S. T. Parks May, 1930 749 Humboldt Van Duzen River Comment
  UC62716  Adiantum aleuticum Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5455 Humboldt near Camp Grant Comment
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  HSC54499  Agastache urticifolia G. L. Clifton, Griswold 1979-7-26 9358 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC154271  Agastache urticifolia Joseph Burtt Davy 1899-6-20 5694 Humboldt Hoopa Valley Comment
  UC577348  Agastache urticifolia Joseph P. Tracy 1932-7-13 10498 Humboldt Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  POM54273  Ageratina occidentalis P. E. Goddard 1906-06 638 Humboldt North fork of Eel River Comment
  UCD128632  Agoseris apargioides Linda M. Barker 1976-7-5 1643 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC98511  Agoseris grandiflora var. leptophylla Cara Witte 2008-8-6 1008 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC582745  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 D Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC1222763  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1942-6-15 17151 Humboldt .5 mi ne, on rd to Harris Garberville 304 Comment
  UC165751  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1908-6 2735 Humboldt opposite, in valley of Van Duzen River Buck Mountain; Northern Coast Ranges, Van Duzen River 762 Comment
  CAS-BOT-BC46095  Agoseris hirsuta Doris K. Kildale 1927-6-26 3587 Humboldt Cape Mendocino Comment
  UC249886  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  UC1541538  Agrostis Harold E. Parks May 1933 4301 a Humboldt Spruce Cove Trinidad Comment
  UC187295  Agrostis alba J. P. Tracy 1901-7-29 1227 Humboldt moist hillside immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC127278  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Northern Coast Region. Eureka. 60 Comment
  CAS-BOT-BC127282  Agrostis exarata William Arents Silveus 1938-7-9 2983 Humboldt Dyerville. Comment
  CAS-BOT-BC127287  Agrostis exarata Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  JEPS75421  Agrostis exarata W. L. Jepson 1932-7-30 16451 Humboldt in redwood forest Bull Creek 121 Comment
  POM207131  Agrostis exarata W. C. Blasdale, Jos Burtt Davy 1899-6-13 5493 Humboldt Near Camp Grant Comment
  RSA21206  Agrostis exarata C. B. Wolf 1937-8-10 9095 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  SEINET3916558  Agrostis hallii James Payne Smith Jr 1977-7-3 9257 Humboldt Six River National Forest. Along Forest Service Road 13NO1, 3 miles from its junction with State Route 36.; 0 549 Comment
  UC1145064  Agrostis oregonensis Joseph P. Tracy 1937-7-29 15582 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  RSA15570  Agrostis stolonifera C. B. Wolf 1927-8-28 1189 Humboldt Eureka Bay on road to Arcata Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  HSC34257  Aira caryophyllea A. Montalvo 1975-5-24 281 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC8849  Aira caryophyllea Rudolf W. Becking 1961-7-3 Humboldt Korbel Kerr Ranch study plots Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  SEINET185294  Aira caryophyllea Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15072 Humboldt Coolidge Tree Redwood Park Comment
  UC1541535  Aira caryophyllea Harold E. Parks June 1936 5850 Humboldt Spruce Cove Trinidad 60 Comment
  UCD55761  Aira caryophyllea Linda M. Barker 1976-4-30 1411 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC138329  Aira caryophyllea var. caryophyllea Doris K. Kildale 1925-6-14 680 Humboldt Head of South Yager Creek. 914 Comment
  RSA517225  Allium acuminatum Barbara Ertter, Thomas J. Delendick 1987-5-16 6920 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  UC2222699  Allium amplectens Joseph P. Tracy 1951-6-26 19596 Humboldt extreme head of Redwood Creek, n side Board Camp Mountain Board Camp Mountain, Redwood Creek 1541 Comment
  CAS-BOT-BC462973  Allium bolanderi Harley P. Chandler 1901-6-1 1434 Humboldt Klamath River, North Coast Ranges 243 Comment
  UC146211  Allium bolanderi var. mirabile Joseph P. Tracy 1908-6 2771 Humboldt opposite Buck Mountains; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC79065  Allium cratericola D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  UC666932  Allium falcifolium Joseph P. Tracy 1933-7-11 12658 Humboldt Horse Mountain 1432 Comment
  HSC71823  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5955 Humboldt Ridge S of Mt. Lassic (Signal Peak) 1524 Comment
  JEPS81076  Allium hoffmanii Thomas W. Nelson and Jane P. Nelson 1980-6-27 5951 Humboldt saddle between two peak e Mount Lassic (non-numbered section e of Sec. 36); Six Rivers National Forest, Blocksburg Quad. 1767 Comment
  SEINET10532720  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-10 Nelson 5417 Humboldt Blocksburg quad. T1s, r5e, intersection of secs. 13 & 14. Along road to red mt. .5 Miles w of junction with swayback ridge rd. Serpentine bald 1372 Comment
  SEINET5586421  Allium triquetrum Richard R. Halse 2013-1 8768 Humboldt Along U.S. Hwy 101 ca. 1.0 miles west of Orick 4 Comment
  UC15002  Allium unifolium Joseph Burtt Davy 1899-6-11 5444 Humboldt between Hubbard's Station and Elk Prairie Comment
  UC202013  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt banks along Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  UCD138614  Allium unifolium K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC666890  Allium validum Joseph P. Tracy 1930-7-16 8922 Humboldt meadow at McKay's Camp South Fork Mountain, McKay's Camp 1676 Comment
  CAS-BOT-BC170945  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville on Van Duzen River 228 Comment
  CDA30678  Alnus rubra M. K. Beyers, I. Shepardson 2009-9-13 242 Humboldt On the western side of the Eel River, on dry, higher ground, adjacent to the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  LA204089  Alnus rubra C. B. Wolf; 1930-10-26 1767 Humboldt S edge of Big Lagoon, near Redwood Highway Bridge 9 Comment
  UC484033  Alnus rubra C. B. Wolf 1930-10-26 1767 Humboldt near Redwood Highway Bridge (s edge of Lagoon); Big Lagoon 9 Comment
  HSC101973  Alnus viridis subsp. sinuata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 870 Humboldt Patterson Meadows 1566 Comment
  UC1103312  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt Arcata <Bottom> North Coast Ranges, Arcata <Bottom> 15 Comment
  HSC8894  Alopecurus pratensis D. J. McVean 1965-5-18 78 Humboldt Old Arcata Rd., S of intersection with Indianola Rd. Comment
  SEINET11674241  Alopecurus saccatus J. P. Tracy 1951-1 19525 Humboldt back of Everett Beck house (formerly George Gray) bed of former Goose Lake, Hydesville Comment
  CAS-BOT-BC13702  Ambrosia chamissonis Ira L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon Comment
  HSC12525  Ambrosia chamissonis Wilbur Peterson 1970-10-7 13 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  HSC38343  Ambrosia chamissonis Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC91929  Ambrosia chamissonis E. Mackey 1987-10-9 Humboldt Patricks Point State Park; Agate Beach Comment
  SEINET7014139  Ambrosia chamissonis R. Mastrogiuseppe, J. Mastrogiuseppe 1983-7-16 3491 Humboldt Dunes near Dry Lagoon. Comment
  HSC18527  Amelanchier alnifolia var. semiintegrifolia J. Sandborg, F. Sandborg May 1968 4 Humboldt Bluff Creek near Notice Creek 793 Comment
  UC492197 Image available Amelanchier utahensis Joseph P. Tracy 1930-7-16 9093 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain Comment
  CAS-BOT-BC213954  Amsinckia H. E. Parks; J. P. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  UC1239646  Amsinckia lunaris Joseph P. Tracy 1930-5-25 8724 Humboldt near Bridgeville; Northern Coast Ranges 152 Comment
  UC525581  Amsinckia menziesii var. menziesii Joseph P. Tracy 1933-5-14 12175 Humboldt Trinity River Vallley at Willow Creek Trinity River Vallley; Northern Coast Ranges 152 Comment
  HSC45082  Amsinckia retrorsa R. Sutherland 1978-4-24 12 .24478 Humboldt Kinsey Ridge; base of cliff 323 Comment
  JEPS43121  Anagallis arvensis Lincoln Constance 1934-5-27 703 Humboldt w. end of Dyerville Bridge (S. Fork Eel R.); Bull Creek Region, S. Fork Eel R. 45 Comment
  UC1123227  Anagallis arvensis H. L. Person 1932-8-1 Humboldt Korbel Eureka Quad., Korbel Comment
  HSC79547  Anagallis arvensis Kenneth Clark 1980-4-18 572 Humboldt 300 yds. E of Dead Man's Gulch; widespread through Shelter Cove 5 Comment
  POM286830  Anagallis arvensis Lyman Benson 1929-7-19 1585 Humboldt Weet Ranger St. Comment
  HSC67040  Anaphalis margaritacea J. P. Smith 1971-10-9 5043 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC102555  Anemone deltoidea M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1543 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55868  Anemone deltoidea G. L. Clifton, Griswold 1979-7-25 10891 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC36626  Anemone deltoidea A. M. Montalvo, J. D. Ackerman 1973-5-6 62 Humboldt Avenue of the Giants 3 mi. NW of Weott 274 Comment
  JEPS60508  Anemone deltoidea W. L. Jepson 1902-7-15 2029 Humboldt between Mud Spring and Trinity Summit Trinity Summit 1828 Comment
  SDSU9921  Anemone deltoidea D. F. Howe 1969-5-30 4606 Humboldt Forest east of Orick. 396 Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC673052  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  UC582632  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC71436  Angelica hendersonii J. M. DiTomaso 1980-7-29 1798 Humboldt Elkshead, 2 mi N of Trinidad Comment
  JEPS16071  Angelica hendersonii Joseph P. Tracy 1923-9-23 6560 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC21452  Angelica lucida Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC71328  Angelica lucida J. M. DiTomaso 1981-6-16 2013 Humboldt Hwy. 101, 1 mi. S of Samoa Blvd., Arcata. Comment
  HSC41310  Angelica tomentosa Brad Klipfel 1974-9-2 545 Humboldt Horse Mtn. Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  UC175182  Anthemis arvensis Joseph P. Tracy 1913-5-21 4074 Humboldt Eureka Northern Coast Region 0 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-BC289123  Anthoxanthum occidentale Richard R. Halse 1996-3-26 5020 Humboldt At junction of Bald Hills Road adn Holter Ridge Bike Route, 11 miles SE of U.S. Hwy. 101, Redwood National Park 708 Comment
  HSC38077  Anthoxanthum occidentale Thomas Nelson, James Nelson 1976-5-30 2630 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC10095  Anthoxanthum occidentale D. W. C. Humboldt Mattole Area Comment
  SEINET7614635 Image available Anthoxanthum occidentale Richard R. Halse 1996-1 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  HSC8940  Anthoxanthum odoratum R. Berg 1963-2-23 1 Humboldt Arcata, Fickle Hill area Comment
  UCD56273  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges, Humboldt Bay. 30 Comment
  UC1198739  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka (at Bucksport); , Bucksport Comment
  CAS-BOT-BC392166  Aquilegia formosa Doris Kildale Gillespie 1931-6-7 10614 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  SDSU9935  Aquilegia formosa D. F. Howe 1962-5-21 3299 Humboldt 16.4 miles north of Garberville on #101. 61 Comment
  HSC75558  Aquilegia formosa var. formosa J. O. Sawyer, R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  HSC56045  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-31 11621 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC6529  Arabis divaricarpa J. P. Tracy 1932-7-12 10391 Humboldt Trinity Summit 1524 Comment
  HSC58192  Arabis glabra G. L. Clifton, Griswold 1979-8-2 12289 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  UC1366087  Arbutus menziesii Nancy Ryan Zabriskie and Walter Zabriskie 1969-8-26 233 Humboldt South Fork Eel River below Piercy; South Fork Eel River Comment
  UC412751  Arbutus menziesii Mrs. M. H. Manning Apr. 1902 Humboldt Comment
  HSC71803  Arceuthobium campylopodum M. A. Baker 1980-6-26 2381 Humboldt Near Sims Creek 610 Comment
  UC1196876  Arctostaphylos Joseph P. Tracy 1934-3-11 13157 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC24095  Arctostaphylos canescens subsp. canescens Doris K. Kildale 1926-8-15 2542 Humboldt Hoopa Mountain 792 Comment
  JEPS118166  Arctostaphylos canescens subsp. canescens Dean W. Taylor 2009-7-14 20676 Humboldt vicinity Huestis Prairie (watershed Redwood Creek) 975 Comment
  CAS-BOT-BC23741  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23758  Arctostaphylos columbiana Alice Eastwood 1907-4-22 98 a Humboldt Adams Station, across river. Comment
  CAS-BOT-BC23761  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad Comment
  HSC68133  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  JEPS38961  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA622677  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27669 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1174868  Arctostaphylos columbiana P. C. Everett and E. K. Balls 1959-10-25 23965 Humboldt 8.8 mi ne from Blue Lake (US Hwy 299, Arcata to Willow Creek) 274 Comment
  UC1193031  Arctostaphylos columbiana R. H. Neuns 1950-7-13 129 Humboldt 3 mi s Alder Point; Quad. 29D2 548 Comment
  UC154196  Arctostaphylos columbiana Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Fruitland Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point Comment
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC585924  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23732  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11984909  Arctostaphylos columbiana Unknown 1965-1 543 A Humboldt top of Chimisal Mountain W of Wailaki Recreation Area, Bureau of Land Management Comment
  RSA15551  Arctostaphylos columbiana var. columbiana C. B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  RSA47120  Arctostaphylos columbiana var. columbiana Doris K. Kildale 1925-12-27 1453 Humboldt Kneeland Comment
  HSC99559  Arctostaphylos glandulosa subsp. glandulosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 224 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA47100  Arctostaphylos intricata Doris K. Kildale 1926-2-28 1521 Humboldt McDowell Butte - Kneeland. Comment
Read comments
Jul 25 2012
  CAS-BOT-BC24475  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 mi. from U.S. 101 en route to Hoopa. 929 Comment
  UCD19961  Arctostaphylos manzanita C. H. Lamoureux; R. Gankin 1956-3-18 1046 Humboldt 2 miles east of Dinsmore, on Hwy 36. Comment
  HSC93506  Arctostaphylos manzanita subsp. glaucescens Gordon Leppig 1998-6-1 863 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  CAS-BOT-BC24371  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-3-10 2993 Humboldt Dobbyns Creek. Comment
  HSC98992  Arctostaphylos manzanita subsp. manzanita Cara Witte 2008-6-4 686 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  UC585900  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  HSC102094  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 997 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC54510  Arctostaphylos nevadensis Overton, Butler 1979-7-23 9416 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC585958  Arctostaphylos nevadensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8944 Humboldt openings in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC40066  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge21.4 miles east of US 101 on Bald Hills Road (from Orick) Comment
  CAS-BOT-BC47209  Arctostaphylos uva-ursi Doris K. Kildale 1926-6-18 2395 Humboldt Gold Bluffs. Comment
  UC1196870  Arctostaphylos uva-ursi Joseph P. Tracy 1937-9-26 15685 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  HSC71587  Arctostaphylos viscida Gail Newton 1980-6-16 180 Humboldt Near Monks Camp 109 Comment
  CAS-BOT-BC48257  Arctostaphylos viscida subsp. viscida L. B. Kildale 1930-9-21 10217 Humboldt Bluff Creek trail to Fish Lake (Klamath River tributary) Comment
  CDA6804  Arctotheca calendula J. M. DiTomaso 2000-8-14 s.n. Humboldt W of town of Ferndale, E of Centerville Beach, along Centerville Rd, at Pries Dairy, near Russ Creek Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC82100  Arnica cernua Harley P. Chandler 1901-6-1 1298 Humboldt [Hupa] Hoopa Indian Reservation 609 Comment
  HSC45266  Arnica cernua M. Alcasas 1978-6-3 113 Humboldt Horse Mtn. summit 1513 Comment
  RSA256573  Arnica cernua D. E. Anderson 1972-6-20 5739 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC129315  Arnica cernua Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5645 Humboldt Hoopa Mt. Comment
  UC275462  Arnica cernua Joseph P. Tracy 1925-6-7 7057 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC97987  Arnica discoidea Cara Witte 2007-7-8 430 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  UC1223002  Arnica discoidea Joseph P. Tracy 1947-7-9 17833 Humboldt just above, along lower slopes of Horse Mountain Arford Cabin Ski Lodge; Horse Mountain 1219 Comment
  JEPS20976  Arnica latifolia Mrs. L. B. Kildale 1926-4-25 Humboldt Sugar Bowl Mt. Trinity River, Sugar Bowl Mt. 457 Comment
  HSC47778  Arrhenatherum elatius Michael A. Watkins 1978-6-10 6 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UCD56014  Arrhenatherum elatius Freed W. Hoffman 1946-5-19 1726 Humboldt North Coast Ranges. Mattole River. Comment
  HSC58169  Artemisia douglasiana G. L. Clifton, Griswold 1979-8-2 12240 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  JEPS36984  Artemisia dracunculus W. L. Jepson 1936-8-12 17877 Humboldt second terrace of the river South Fork Eel River, Philipsville Comment
  UC164826  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC56131  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-8-1 11947 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC56350  Aruncus dioicus var. pubescens J. Burtt Davy 1899-6-21 5722 Humboldt Supply Creek; North Coast Ranges, Hoopa Valley Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC1198117  Asarum caudatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3618 Humboldt near Hydesville 60 Comment
  BLMAR236  Asarum caudatum Jennifer Anthony-Wheeler 1996-9-26 236 Humboldt King range, growing near boardwalk by horsetails in bear creek 548 Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  RSA296721  Asarum caudatum Clark L. Miller 1979-5-13 1 -129 Humboldt East of Hwy 101 from Seawood Drive. Comment
  SEINET201000  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt West side of Trinity River near Willow Creek. 183 Comment
  RSA167427  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  CAS-BOT-BC65939  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  CDA42726  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Horse Mountain, Ammon Ridge Road 1 kilometer east of Titlow Hill Road. Comment
  SEINET200793 Image available Aspidotis densa J. P. Tracy 1942-6-23 17265 Humboldt Water Dog Lake; Trinity Summit 1830 Comment
  HSC100424  Aster foliaceus Carl C. Marshall Sep 1886 247 Humboldt Everywhere. Comment
  CHSC118641  Astragalus agnicidus Courtney Wilson; Matt Groberg, Bob Meinke 2011-6-23 Humboldt On Humboldt Redwood Company private land. From Larabee, continue east along Larabee Creek and then follow the Scott Creek tributary uphill to the appropriate elevation and plants occur approximately 150 m east of the creek. 658 Comment
  HSC94176  Astragalus agnicidus Melisa Brooks 2000-6-14 Humboldt Pacific Lumber Co. land 671 Comment
  SEINET880898 Image available Astragalus agnicidus Henry Tosten 1931-1 s.n. Humboldt Near Bear Buttes, 4 mi south of Miranda; local on Tosten and Pierce Ranch. 762 Comment
  JEPS109394  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
  RSA0089849  Astragalus umbraticus Dean Wm. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road. 1133 Comment
  HSC54544  Athyrium filix-femina var. cyclosorum Overton, Butler 1979-7-23 9531 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC26349  Atriplex patula T. O. Osborne 1970-6-19 74 Humboldt Flat-Iron Rock, 3/4 mi. NW Trinidad Light. Comment
  HSC9004  Avena barbata R. Spellenberg 1965-6-14 1124 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  HSC9010  Avena fatua E. W. Styskel 1964-4-3 55 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  UC1152027  Avena fatua Joseph P. Tracy 1951-5-26 19510 Humboldt Willow Creek Trinity River Valley, Trinity River 152 Comment
  UC303081  Azolla filiculoides Joseph P. Tracy 1904-9-11 2143 Humboldt Fields Landing; Northern Coast Region 30 Comment
  HSC37666  Baccharis douglasii R. Sutherland 1976-8-19 14 .19876 Humboldt 236 Comment
  JEPS21316  Baccharis glutinosa W. L. Jepson 1932-7-27 16425 Humboldt Bull Creek 106 Comment
  UC169039  Baccharis pilularis Joseph P. Tracy 1912-10-20 4003 Humboldt Alton 30 Comment
  UCR37252  Baccharis pilularis R. A. Fawcett 1940-8-26 s.n. Humboldt Bishop Pine Lodge, Trinidad Comment
  HSC47014  Baccharis pilularis subsp. consanguinea Sheila Logan 1978-11-23 223 Humboldt Manila Sand Dunes, Manila; 1/4 mile W of junction with Samoa Blvd. and Redwood Gun club 6 Comment
  SEINET7003037  Baeria chrysostoma J. P. Tracy 1901-5-18 1099 Humboldt Ocean Beach at Samoa, opposite Eureka. Comment
  HSC32147  Barbarea orthoceras D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5611 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC184173  Barbarea orthoceras Joseph P. Tracy 1913-6-14 4119 Humboldt Dinsmore's Ranch; in Valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC58397  Barbarea verna Terry Griswold, Marvin Butler 1979-7-11 6925 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek 1320 Comment
  HSC89512  Barbarea verna M. Roantree 1985-4-25 8 Humboldt E side of Trinidad Head. Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  HSC82029  Bellardia trixago Thomas W. Nelson, Jane P. Nelson 1980-5-25 5344 Humboldt Along Alderpoint-Blocksburg Rd., just SE of bridge over N Dobbyn Creek 152 Comment
  HSC91924  Bellis perennis E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UC127824  Bellis perennis Harley P. Chandler May 1901 1128 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  BLMAR655  Berberis nervosa Jennifer Wheeler 2012-5-9 655 Humboldt Lacks Creek, Beaver Ridge Road 914 Comment
  HSC41247  Berberis nervosa Brad Klipfel 1974-5-27 394 Humboldt Near Horse Mtn. Comment
  HSC76278  Berberis nervosa Teresa Prendusi 1981-7-7 138 Humboldt Near Slate Creek Butte. 1158 Comment
  RSA24106  Berberis pinnata C. B. Wolf 1941-3-2 9989 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 1/4 mi. s. of Panther Gap. 549 Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  HSC95878  Blechnum spicant Will Ferrand 2002-2-2 20 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  POM256476  Boisduvalia densiflora Joseph P. Tracy 1938-7-5 16003 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC83035  Bolboschoenus maritimus subsp. paludosus A. L. Eicher 1985-8-17 Humboldt Coastal salt marsh bordering Humboldt Bay, 0.3 mi. S of junction of Samoa Blvd. and Vance Ave. 1 Comment
  JEPS19058  Botrychium multifidum Milo S. Baker 1923-7-15 13 Humboldt southeastern outskirts of Eureka (near M and Hays Streets) Comment
  HSC74415  Boykinia major Gail Newton 1980-8-10 2036 Humboldt Near Blake Mtn. 1707 Comment
  HSC75263  Boykinia major J. O. Sawyer, M. A. Ericksen 1980-8-18 4057 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  RSA20790  Boykinia major Carl B. Wolf 1937-8-13 9255 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC420265  Boykinia occidentalis Doris K. Kildale 1928-7-29 5928 Humboldt Bear River at Capetown 15 Comment
  HSC20180  Boykinia occidentalis D. E. Anderson 1965-9-5 4095 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC420256  Boykinia occidentalis Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  HSC67082  Boykinia occidentalis Richard Spjut 1980-5-19 6198 Humboldt Between Willow Creek and Hoopa along Hwy. 96 Comment
  UCSB23762  Boykinia occidentalis Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101; 8 miles north of Orick; 60 Comment
  HSC98960  Brassica nigra Cara Witte 2007-7-24 573 Humboldt Ammon Ridge Road. At intersection with 5N15. 1441 Comment
  HSC89443  Brassica rapa P. A. Daly 1986-2-23 50 Humboldt Along trails at Trinidad Head 6 Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  SEINET3132624  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt T6N, R2E, sec 29, about 1 mi E Blue Lake on Hwy 299 Comment
  RSA183611  Briza minor G. Bos 1965-5-15 252 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UCD57397  Briza minor A. H. Murphy 1951-4-18 14 Humboldt Tooby and Prior Ranch. 2 miles south of Blocksburg. Comment
  SEINET4344866  Briza minor W. D. Billings 1940-6-22 1347 Humboldt 1/2 mile N. of Trinidad Comment
  HSC23716  Brodiaea elegans subsp. elegans Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  UC666907  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt mountain slopes w of its mouth South Fork of Trinity River 304 Comment
  CAS-BOT-BC486507  Brodiaea stellaris W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula Comment
  SEINET247908  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad. Comment
  HSC81940  Brodiaea terrestris subsp. terrestris D. H. Norris 1985-5-30 Humboldt Near Whitethorn Comment
  HSC58761  Bromus carinatus var. carinatus Walter Overton, Marvin Butler 1979-7-26 10101 Humboldt Near Cold Spring, close to the town of Willow Creek. 1417 Comment
  UC180484  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-13 4100 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC180489  Bromus carinatus var. carinatus Joseph P. Tracy 1914-5-14 4447 Humboldt Fort Seward 121 Comment
  UC184919  Bromus carinatus var. carinatus Joseph P. Tracy 1912-6-9 3654 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UCD59205  Bromus carinatus var. marginatus A. H. Shunk 1923-7-12 24 Humboldt Briceland. Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9271  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  HSC9297  Bromus diandrus J. R. Eichelberger 1964-5-3 46 Humboldt 2 mi. N of Fieldbrook Comment
  HSC9300  Bromus diandrus E. W. Styskel 1964-4-28 75 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  UC1145182  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt 5 mi n of Harris (Mail Ridge); Mail Ridge 944 Comment
  HSC38398  Bromus hordeaceus J. D. Ackerman 1975-6-10 449 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC89518  Bromus hordeaceus M. Roantree 1985-6-11 92 Humboldt E side of Trinidad Head Comment
  SEINET11682985  Bromus hordeaceus K. S. Erdman 1970-1 4784 Humboldt Doleson Hill Prairie, Bald Hills Rd SE of Orick Comment
  UCD58883  Bromus laevipes Joseph P. Tracy 1950-6-15 18785 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  RSA152297  Bromus marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1037 Comment
  UCD59545  Bromus rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris. 762 Comment
  SEINET200634 Image available Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt Along Mad River near Blue Lake. 15 Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UC180480  Bromus vulgaris Joseph P. Tracy 1914-5-14 4444 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  RSA43838B  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt Klamath River near Harley Place, Orleans region Comment
  HSC57627  Cacaliopsis nardosmia G. L. Clifton, Griswold 1979-7-25 10766 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  HSC6604  Cakile maritima J. W. Johnson 1961-11-29 1415 Humboldt End of Ridge 3, Christenson Farm, Samoa Peninsula, Arcata Comment
  UCD114936  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (10 miles south of Eureka). Comment
  CAS-BOT-BC185315  Calamagrostis foliosa Roxana S. Ferris 1937-8-21 9391 A Humboldt Shelter Cove. Comment
  HSC76541  Calamagrostis koelerioides Denis Kearns 1981-7-6 85 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC185179  Calamagrostis nutkaensis Joseph P. Tracy 1925-7-5 7174 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  UC100200  Calamagrostis nutkaensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1194 Humboldt Eureka; southern outskirts Comment
  JEPS52599  Calandrinia ciliata Lincoln Constance 1934-6-19 912 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek Region (near summit) 914 Comment
  UC1922745  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35323 Humboldt CLAM BEACH COUNTY PARK: along highway. Comment
  UC1103687  Callitriche marginata Joseph P. Tracy 1921-4-24 5436 Humboldt Phillipsville Flat, South Fork of Eel River. Northern Coast Ranges. 91 Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  HSC99537  Calocedrus decurrens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 202 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC275510  Calocedrus decurrens Joseph P. Tracy 1924-8-31 6847 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  UC1225854  Calochortus amabilis Joseph P. Tracy 1948-6-13 18050 Humboldt Harris 609 Comment
  CAS-BOT-BC488452  Calochortus amabilis Elizabeth Parsons Hawver 1915-6-1 n.s. Humboldt Carlotto Comment
  UC667131  Calochortus coeruleus Joseph P. Tracy 1932-7-12 10483 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  SEINET12044651  Calochortus elegans var. nanus M. S. Jussel 1931-1 s.n. Humboldt 20 mi N of Garberville Comment
  RSA113893  Calochortus tolmiei E. K. Balls, Lee W. Lenz 1955-5-15 20738 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  UC1103466  Calochortus tolmiei Joseph P. Tracy 1933-6-13 12592 Humboldt near summit on road from Hoopa (w to Bair's); Hoopa Mountain 914 Comment
  UC1197673  Calochortus tolmiei Joseph P. Tracy 1921-4-24 5466 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC146213  Calochortus tolmiei Joseph P. Tracy 1908-6-7 2612 Humboldt Butler Valley Northern Coast Ranges 152 Comment
  UC667125  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Phillipsville 121 Comment
  SEINET3992100  Calochortus tolmiei Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka, Quercus Garryana forest 762 Comment
  UC503034  Caltha biflora Joseph P. Tracy July 16-19, 1930 8971 Humboldt Northern Coast Ranges. At McKay Camp, South Fork Mountain. 1676 Comment
  CDA10558  Calycadenia ciliosa E. C. Whitney 1960-9-1 Humboldt 1/2 mile north of Pearch Creek on State Highway 96. 0 Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  CAS-BOT-BC273312  Calycadenia fremontii L. R. Abrams 1918-6-16 7133 Humboldt Willow Creek Comment
  UC175973  Calycadenia truncata Joseph P. Tracy 1908-7-1 2761 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 914 Comment
  UC195065  Calycadenia truncata Joseph P. Tracy 1916-9-5 4755 Humboldt head of Canoe Creek Northern Coast Ranges, Grasshopper Ridge 609 Comment
  CAS-BOT-BC275366  Calycadenia truncata var. truncata Doris K. Kildale 1925-7-4 982 Humboldt Redwood Creek at [Bern?'s] Comment
  HSC59490  Calypso bulbosa M. A. Ericksen 1979-4-28 219 Humboldt Roadside leading to Camp Bouer, Korbel. Comment
  SEINET12076826  Calypso bulbosa Unknown 1977-1 Humboldt Comment
  RSA304262  Calypso bulbosa var. occidentalis James R. Shevock 1972-3-27 1481 Humboldt Redwood State Park Comment
  HSC17646  Calyptridium monospermum W. K. Parks Jul 1933 1198 Humboldt S Fork Mtn. Comment
  HSC75952  Calyptridium monospermum Overton, Butler 1979-7-24 9736 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 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
  HSC37769  Calystegia silvatica subsp. disjuncta Thomas W. Nelson 1976-8-10 3166 Humboldt Intersection of 11th and B St. in Arcata Comment
  HSC59102  Calystegia soldanella Clark L. Miller 1979-5-24 1149 Humboldt Dunes off Samoa Boulevard about .5 mi. from Coast Guard Station Gate Comment
  HSC90315  Calystegia soldanella Jean Hanson 1980-5-24 79 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island, 25 ft. from high tide line Comment
  RSA244983  Calystegia soldanella R. E. Jones 1966-4-13 43 Humboldt Cape Mendocino 6 miles south of Cape. Comment
  SEINET10452961  Camissonia Mary Susan Taylor 1990-8-22 Taylor 6071 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC16441  Camissonia cheiranthifolia J. W. Johnson 1961-5-13 1358 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  HSC36594  Camissonia strigulosa K. Irwin 1976-4-17 Humboldt 1/2 mi. S of Lamphere Nature Conservancy next to Mad River Slough Comment
  SEINET10462987  Campanula prenanthoides Vollmer VOLLMER 149 Humboldt On road to Bald Mountain, east of Korbel Comment
  SEINET10463059  Campanula prenanthoides Vollmer VOLLMER 149 Humboldt ON ROAD TO BALD MTN, E OF KORBEL Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  UC1326258  Campanula prenanthoides Milo S. Baker 1947-8-8 11925 Humboldt just n Orick (about 10 mi along Rd from Hwy 101 towards Hoopa) 609 Comment
  HSC74731  Campanula scouleri Gail Newton 1981-7-24 2300 Humboldt Near Chaparral Mtn. 1433 Comment
  POM193020  Campanula scouleri M. H. Manning 1901-07 s.n. Humboldt Near Hupa Comment
  SEINET10463747  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt Near Titlow Hill, on the Willow Creek quadrangle, close to the town of Willow Creek 1280 Comment
  RSA456189  Campanula scouleri M. S. Baker 1947-8-10 11901 Humboldt 15 mi n.e. of Stoopa Pass. near end of forest road in Fir Forest. 1372 Comment
  SEINET10463744  Campanula scouleri Marshall 1886-1 MARSHALL s.n. Humboldt Comment
  CAS-BOT-BC37423  Cardamine californica Doris K. Kildale 1927-1-23 2974 Humboldt Blue Slide in the Van Duzen River. Comment
  HSC26340  Cardamine californica Thomas W. Nelson 1971-4-4 365 Humboldt Above the S Fork of the Van Duzen River and beside Hwy. 36 at the bridge over the Van Duzen River Comment
  HSC45593  Cardamine californica Diane L. Reed 1978-4-22 38 Humboldt Trinidad Head Comment
  HSC6698  Cardamine californica Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  UC1199182  Cardamine californica Joseph P. Tracy 1935-3-10 13732 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UCD114185  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  RSA0034559  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  RSA176497  Cardamine californica var. integrifolia Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  UC302042  Cardamine californica var. integrifolia Joseph P. Tracy 1926-3-28 7393 Humboldt Blue Slide on Van Duzen River; Northern Coast Ranges, Blue Slide on Van Duzen River 91 Comment
  CHSC77460  Cardamine californica var. sinuata Vernon H. Oswald 2000-4-3 9909 Humboldt Trail from County Parking Lot to headlands at Elk Head northwest of Trinidad. 24 Comment
  CAS-BOT-BC37792  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Northern Coast Ranges. Horse Mountain. 1524 Comment
  HSC43205  Cardamine oligosperma R. Sutherland 1976-8-13 29 .13876 Humboldt Mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC90782  Cardionema ramosissimum Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  CAS-BOT-BC281809  Carduus tenuiflorus Doris K Niles 1951-1-1 s.n. Humboldt Niles Ranch Comment
  HSC74695  Carex abrupta Gail Newton 1981-8-7 2462 Humboldt Near Board Camp Mtn. 1478 Comment
  CAS-BOT-BC18518  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  UC562426  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  HSC103599  Carex angustata Thomas W. Nelson, Jane Nelson 1987-6-11 8609 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC18002  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
  RSA18607  Carex aquatilis var. dives Carl B. Wolf 1937-9-11 9323 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  CHSC85062  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt Pacific Lumber Company Land. L 35 Rd. 1/2 mile west of Fox Creek Road, west side of large swamp. 70 Comment
  CAS-BOT-BC18075  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  POM273208  Carex barbarae Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  RSA244324  Carex barbarae Larry E. DeBuhr 1973-4-23 989 Humboldt Richardson Grove Redwood State Park. Comment
  HSC70465  Carex bolanderi Gail Newton 1980-7-20 1629 Humboldt Near Bell Swamps 1426 Comment
  SEINET200965  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Northern Coast Ranges Bald Mountain between High Prairie and Snow Camp. 1067 Comment
  SEINET200966  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges French Camp Ridge. 1067 Comment
  UC1265367  Carex bolanderi Robert F. Thorne and P. Everett 1965-8-5 35136 Humboldt Mt. Chamisal, below summit Comment
  SEINET3900272  Carex breviligulata Thomas Nelson, Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore.; 0 762 Comment
  LA103752  Carex buxbaumii Robert F. Thorne; P. C. Everett 1965-8-7 35197 Humboldt Big Lagoon 1 Comment
  HSC74358  Carex concinnoides Gail Newton 1980-6-17 218 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC34984  Carex densa Alice Eastwood; John Thomas Howell 1937-6-22 4735 Humboldt Near Alder Point. Comment
  JEPS113012  Carex deweyana subsp. leptopoda Dean W. Taylor 1991-8-15 12280 B Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  CAS-BOT-BC20078  Carex echinata Joseph Prince Tracy 1930-7-16 8986 Humboldt Northern Coast Ranges. South Fork Mountain. McKay Camp. 1676 Comment
  CHSC85975  Carex echinata subsp. phyllomanica L. P. Janeway 2003-7-30 7943 Humboldt High North Coast Ranges. High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  CAS-BOT-BC19962  Carex exsiccata Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt 8 miles NE of Orick. Comment
  HSC40977  Carex fracta J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  JEPS79841  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  RSA167280  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  UC1103063  Carex globosa Joseph P. Tracy 1932-5-1 9852 Humboldt 3 mi n Garberville; North Coast Ranges, Redway 182 Comment
  UC562640  Carex gracilior Joseph P. Tracy 1935-6-8 13940 Humboldt at Eureka Northern Coast Ranges 0 Comment
  CHSC34064  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt Northern Coast Region of California. At Eureka. 30 Comment
  SEINET7564994 Image available Carex leptalea Juha Pykala, D. H. Norris 1987-6-24 1895 Humboldt Big Lagoon, Big Lagoon fen. 0 Comment
  UC1152083  Carex luzulina var. luzulina Joseph P. Tracy 1951-6-14 19410 Humboldt Snow Camp Comment
  JEPS79849  Carex lyngbyei Joseph P. Tracy 1927-7-16 8248 Humboldt near mouth Elk River (around Humboldt Bay); Northern Coast Region 3 Comment
  HSC82622  Carex mendocinensis Thomas W. Nelson 1977-6-15 3447 Humboldt Along old road to ski area 1372 Comment
  CAS-BOT-BC32129  Carex multicaulis Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  HSC70323  Carex multicaulis M. A. Baker 1980-6-7 1875 Humboldt Near Ammon Creek 732 Comment
  HSC70636  Carex multicaulis R. York 1980-5-18 600 Humboldt Near Black Mtn. 792 Comment
  UC1103091  Carex multicostata Joseph P. Tracy 1933-7-25 12847 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  CAS-BOT-BC119542  Carex nudata Doris K. Kildale 1929-5-26 9134 Humboldt Klamath River st Orleans. 152 Comment
  POM289940  Carex obnupta Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad. Comment
  RSA246861  Carex obnupta Robert F. Thorne, Percy C. Everett 1965-8-5 35139 Humboldt Mt. Chamisal; Below summit. 534 Comment
  UC1598395  Carex obnupta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4353 Humboldt Burr Creek Burr Valley Comment
  HSC91620  Carex obnupta E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, beach N of Wedding Rock Comment
  UCSC000111  Carex obnupta H. S. Yates 1936-6-16 5653 Humboldt 0.5 mile S.W. of Samoa - Eureka 0 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
  CAS-BOT-BC119226  Carex pachystachya Joseph Prince Tracy 1939-5-6 16282 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  UC303146  Carex pachystachya Joseph P. Tracy 1925-7-5 7165 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA22203  Carex pansa D. D. Keck 1938-8-5 4766 Humboldt Clam Beach. Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. Comment
  UC1103623  Carex scopulorum var. bracteosa Joseph P. Tracy 1935-7-23 14145 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CHSC102860  Carex subbracteata Peter F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range. Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  CAS-BOT-BC116940  Carex subbracteata Joseph Prince Tracy 1936-6-9 14904 Humboldt Upper Matole. 121 Comment
  JEPS79863  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel R. from S. Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  HSC48739  Carex subfusca Brad Klipfel 1973-6-10 64 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC116677  Carex subfusca Joseph Prince Tracy 1935-7-27 14296 Humboldt Open places at McKay Prairie, along creek in meadow. 1584 Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  CAS-BOT-BC115574  Carex tumulicola Joseph Prince Tracy 1930-7-10 8859 Humboldt In grassy opening Brannan Mountain 1219 Comment
  SEINET10751219  Carex unilateralis Joseph P. Tracy 1930-6-15 Tracy 8756 Humboldt Dobbyn Creek, bordering a pond. 152 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  UC562327  Carex utriculata Joseph P. Tracy 1932-7-14 10563 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA273334  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon. 0 Comment
  HSC2871  Carpobrotus chilensis D. B. Mitchell 1965-5-21 71 Humboldt 1/2 mi. N of U.S. Coast Guard Station on Samoa Rd. Comment
  CAS-BOT-BC249131  Castilleja affinis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  HSC45088  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 24 Comment
  JEPS35822  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8968 Humboldt hills above and w Cape Mendocino (about 20 mi n by road of Petrolia) Comment
  JEPS93136  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2433 Humboldt nw of Loleta (Table Bluff, s end of Humboldt Spit into Humboldt Bay, bluff between road to Loleta and beach); Table Bluff 30 Comment
  UCSB26617  Castilleja ambigua Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka Comment
  UC1222799  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1950-6-17 18839 Humboldt Eureka slough at the railroad bridge Eureka Comment
  UC673218  Castilleja attenuata Lincoln Constance and Reed C. Rollins 1942-5-12 2891 Humboldt 1 mi s Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC48386  Castilleja hispida subsp. brevilobata Brad Klipfel 1973-6-10 110 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC244879  Castilleja miniata Mrs. H. C. Cantelow 1935-5-31 836 Humboldt 15 mi. N. of Orick Comment
  CAS-BOT-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  UC176440  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1913-6-19 4213 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1502103  Ceanothus R. Sutherland 1975-7-4 8 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  HSC37602  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 10 .13575 Humboldt Brushy flat 509 Comment
  HSC37052  Ceanothus incanus R. Sutherland 1975-6-3 1 .3675 Humboldt 396 Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  HSC37608  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 4 .11775 Humboldt Along county rd. 274 Comment
  UC1193285  Ceanothus oliganthus var. sorediatus P. Zinke 1950-8-26 157 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 Comment
  UC1198030  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1933-5-21 12207 Humboldt Bridgeville near mouth Little Larrabee Creek, Bridgeville 198 Comment
  CAS-BOT-BC51215  Ceanothus parryi Lester Rowntree 1934-5-6 s.n. Humboldt Near Richardson Grove Comment
  CAS-BOT-BC51217  Ceanothus parryi M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N. of Garberville Comment
  CAS-BOT-BC51220  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC18310  Ceanothus parryi P. J. Zinke 1950-8-25 158 Humboldt Salmon Creek 3 mi W of Miranda 91 Comment
  HSC36681  Ceanothus parryi R. Sutherland 1975-4-22 8 .22475 Humboldt E of China Creek at county rd. 207 Comment
  CAS-BOT-BC52042  Ceanothus prostratus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC52982  Ceanothus thyrsiflorus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC18340  Ceanothus thyrsiflorus H. E. Parks Apr 1935 5543 Humboldt Trinidad Comment
  RSA77347  Ceanothus thyrsiflorus F. W. Peirson 1926-7-12 70431 Humboldt Orick Comment
  UC165825  Ceanothus thyrsiflorus Joseph P. Tracy 1909-6-6 2984 Humboldt Eureka 0 Comment
  UCD112726  Ceanothus thyrsiflorus J. E. Street 1950-5-28 s.n. Humboldt Eureka. Comment
  HSC18344  Ceanothus velutinus C. B. Wolf 1927-8-30 1242 Humboldt 5-6 mi. N of Ettersburg, Paradise Comment
  HSC43225  Ceanothus velutinus R. Sutherland 1976-3-17 6 .17376 Humboldt 747 Comment
  UC668158  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC56255  Ceanothus velutinus var. velutinus Walter Overton 1979-8-1 12389 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC582527  Centaurea X moncktonii J. C. Tario Jr. 1933-10-23 Humboldt near Orick (Davison's field) 60 Comment
  HSC98771  Centaurea diffusa Cara Witte 2007-8-9 634 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  CDA7311  Centaurea pratensis E. C. Whitney, R. E. Talbert 1966-8-4 Humboldt Weitchpec. Hoopa Reservation. 0 Comment
  UC1225826  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1225819  Centaurium muehlenbergii Joseph P. Tracy 1948-9-20 18217 Humboldt Hoopa Valley 91 Comment
  UC718024  Centaurium muehlenbergii Carl B. Wolf 1934-6-30 Humboldt 0.5 mi from Briceland (on road to Garberville) 91 Comment
  UC562468  Centunculus minimus Joseph P. Tracy 1927-7-17 8272 Humboldt North Coast Ranges, on Chaparral Mountain, Three Cabins Three Cabins; North Coast Ranges, Chaparral Mountain, Three Cabins 457 Comment
  RSA436984  Cephalanthera austiniae Gary D. Wallace 1973-7-11 1250 Humboldt Eastern part of Prairie Creek Redwoods State Park 427 Comment
  CAS-BOT-BC384904  Cerastium arvense Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC8232  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  UC161038  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-6-20 2569 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC59048  Cerastium glomeratum Thomas Wood 1979-4-4 94 Humboldt Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd. Comment
  POM161038  Chamaecyparis lawsoniana Joseph P. Tracy 1926-6-27 7672 Humboldt Horse Mountain 1463 Comment
  JEPS52356  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above mouth of river; Nothern Coast Ranges, South Fork of Eel River Comment
  UC275332  Chamaesyce serpyllifolia Joseph P. Tracy 1923-9-16 6555 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UCSB30589  Chamerion angustifolium subsp. circumvagum Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca. 1/2-3/4 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 5 mi. E. of jct. of Fickle Hill Rd. and Park Ave., Arcata Comment
  CAS-BOT-BC68263  Cheilanthes gracillima J. H. Thomas 1949-6-13 923 Humboldt Six Rivers National Forest - along trail between Le Perron Flat and Whiteys Peak (East of town of Orleans). 1828 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  RSA54128  Cheilanthes gracillima Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain 1829 Comment
  CAS-BOT-BC460963  Chenopodium atrovirens Joseph P. Tracy 1932-7-13 10500 Humboldt Trinity Summit: open places at Corral Prairie 1584 Comment
  RSA424563B  Chenopodium botrys T. S. Elias, Barbara A. Elias 1987-8-26 10624 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  CHSC69501  Chenopodium rubrum var. rubrum Vernon Oswald; Lowell Ahart 1997-9-4 8846 Humboldt North Coast Region, Coastal Strand. Big Lagoon County Park at the southwest edge of Big Lagoon. 3 Comment
  HSC74352  Chimaphila umbellata Gail Newton 1980-6-17 211 Humboldt Near Onion Mtn. 1341 Comment
  JEPS66585  Chimaphila umbellata Lincoln Constance 1934-6-14 873 Humboldt 2 mi. from mouth of Squaw Creek (on rd. to Grasshopper Peak); Bull Creek Region, S. Fork Eel R. 304 Comment
  RSA249505  Chimaphila umbellata subsp. occidentalis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35145 Humboldt King Mountain 1220 Comment
  RSA141592  Chrysolepis chrysophylla C. K. Clay 1960-11-11 24316 Humboldt Eureka. Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  UC1198647  Cicendia quadrangularis Joseph P. Tracy 1930-5-18 8696 Humboldt Rohnerville Golf Course 152 Comment
  UC1197341  Cicuta douglasii Joseph P. Tracy 1937-8-12 15662 Humboldt Snow Camp 1402 Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  HSC76203  Circaea alpina subsp. pacifica Overton, Butler 1979-8-2 12511 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC98857  Circaea alpina subsp. pacifica Cara Witte 2008-7-30 974 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  UC1119170  Cirsium arvense H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quad. 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
  UC169295  Cirsium brevistylum Joseph P. Tracy 1912-7-14 3748 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC284439  Cirsium brevistylum Peter H. Raven; R. Snow 1958-7-21 13648 Humboldt Along Titlow Hill Road 0.7 miles south of United States Highway 299 Comment
  CHSC97934  Cirsium cymosum T. R. Haig 1960-6-16 Humboldt Near quarry at Kneeland. Comment
  JEPS30422  Cirsium douglasii var. douglasii Peter H. Raven with R. Snow 1958-7-20 13647 Humboldt 3.8 mi s U.S. Highway 299 (along Titlow Hill Road) Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UC249823  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  HSC71801  Cirsium occidentale var. candidissimum M. A. Baker 1980-6-26 2379 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC288722  Cirsium remotifolium Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  UC582538  Cirsium remotifolium var. rivulare Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  HSC91920  Cirsium vulgare E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  UC56305  Clarkia amoena Joseph Burtt Davy 1899-6-21 5731 Humboldt Supply Creek Comment
  UC668237  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  POM208994  Clarkia amoena subsp. huntiana Lincoln Constance 1934-5-23 618 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  RSA23649  Clarkia amoena subsp. huntiana Carl B. Wolf 1939-7-8 9520 Humboldt Devil s Gate on road to Petrolia; 1 mile inland 152 Comment
  RSA0059979  Clarkia amoena subsp. whitneyi C. L. Hitchcock, J. S. Martin 1939-7-14 5432 Humboldt 1 mile east of Shelter Cove Comment
  UC1143187  Clarkia concinna subsp. concinna H. and M. Lewis 1947-6-13 419 Humboldt 1.9 mi w Van Duzen River Bridge (4-129) (Hwy. 36) Comment
  UC1198509  Clarkia concinna subsp. concinna Joseph P. Tracy 1934-7-9 13335 Humboldt ridge 5 mi s Harris 762 Comment
  HSC37508  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 487 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  CAS-BOT-BC172506  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1928-6-24 7075 Humboldt Redwood Creek at Berry's 289 Comment
  RSA108220  Clarkia purpurea subsp. viminea Harlan Lewis, M. Lewis 1947-6-14 422 Humboldt Highway 36 at south fork of Van Duzen River Bridge (4-119) Comment
  CHSC77466  Claytonia exigua subsp. exigua Vernon H. Oswald 2000-4-3 9912 Humboldt Near the junction of New Navy Base Rd. and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  UC275327  Claytonia exigua subsp. glauca Joseph P. Tracy 1923-4-15 6188 Humboldt Redwood Creek;at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  UC161027  Claytonia rubra subsp. depressa Joseph P. Tracy 1910-4-24 3129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UC198590  Claytonia rubra subsp. depressa Joseph P. Tracy 1917-5-30 4792 Humboldt Little River Beach; Northern Coast Ranges 6 Comment
  UC673000  Claytonia rubra subsp. rubra Joseph P. Tracy 1929-7-4 8617 Humboldt French Camp Ridge 1066 Comment
  HSC65469  Claytonia saxosa M. A. Baker 1980-6-8 1918 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC443891  Claytonia sibirica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC54582  Claytonia sibirica Overton, Butler 1979-7-24 9629 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70536  Claytonia sibirica Gail Newton 1980-7-20 1633 Humboldt Near Bell Swamps 1426 Comment
  HSC89441  Claytonia sibirica P. A. Daly 1985-5-3 36 Humboldt Trinidad Head 61 Comment
  UC13660  Claytonia sibirica Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  HSC97175  Claytonia sibirica Erin Lonergan, Benjamin Hart 2007-6-13 8 Humboldt 1 mi. E of FS Rd. NF1 on FS Rd. 5N04 1524 Comment
  HSC17719  Claytonia washingtoniana D. E. Anderson 1962-3-31 1972 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  UC183678  Clematis ligusticifolia Joseph P. Tracy 1912-8-3 3963 Humboldt opposite Buck Mt. (Dinsmore's Ranch, valley of Van Duzen R.); Northern Coast Ranges, valley of Van Duzen R., Dinsmore's Ra 762 Comment
  UC503039  Clematis ligusticifolia Joseph P. Tracy 1928-9-2 8495 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  CAS-BOT-BC499340  Clintonia andrewsiana Doris K. Kildale 1926-3-26 1638 Humboldt Old Kneeland Road 60 Comment
  JEPS61597  Clintonia andrewsiana Lincoln Constance 1934-6-3 810 Humboldt 1 mi n of Dyerville (road from High Rock (on Redwood Hwy) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC57030  Clintonia uniflora Overton, Butler 1979-7-24 9654 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC98773  Clintonia uniflora Cara Witte 2008-7-7 840 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  UC1103460  Clintonia uniflora Joseph P. Tracy 1926-6-6 7582 Humboldt Hoopa Mountain, near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC41802  Collinsia grandiflora W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  HSC32318  Collinsia greenei D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5653 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC73765  Collinsia greenei Gail Newton 1980-7-11 1317 Humboldt Near Red Mtn. 1341 Comment
  CHSC97959  Collinsia linearis Laurel Goldsmith; Wanda Naylor 2005-6-8 4 Humboldt 1.7 miles south of Hwy 299 on Titlow Hill Rd. UTM 0436141, 4525408. 980 Comment
  HSC97485  Collinsia linearis Cara Witte 2007-5-23 94 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  RSA60814  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Southwestern side of Horse Mountain. 762 Comment
  HSC32342  Collinsia parviflora D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5639 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC41811  Collinsia parviflora Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC48636  Collinsia parviflora Mark Flippo 1978-5-20 89 Humboldt USFS Rd. 8N10 Comment
  HSC70372  Collinsia rattanii Gail Newton 1980-6-7 129 Humboldt Near Brush Mtn. 1128 Comment
  POM193011  Collinsia sparsiflora H. E. Parks 1930-5-25 792 Humboldt Laribee Valley. 793 Comment
  UC1196851  Collinsia sparsiflora var. collina Joseph P. Tracy 1913-6-20 4242 Humboldt Grassy slopes on lower foothills of Buck Mountain. 762 Comment
  HSC48850  Collomia grandiflora Brad Klipfel 1973-7-15 208 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76564  Collomia grandiflora Denis Kearns 1981-7-22 311 Humboldt Near Whiteys Peak 1487 Comment
  UC1197853  Collomia grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9066 Humboldt openings in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC45589  Collomia heterophylla Diane L. Reed 1978-5-27 137 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC32312  Collomia tracyi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5660 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC71821  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC82602  Collomia tracyi Thomas W. Nelson 1979-7-11 4992 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC672847  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt near the South Fork (Trinity River Valley); Trinity River Valley 182 Comment
  CHSC26757  Conium maculatum M. S. Taylor 1977-8-5 1433 Humboldt Around bridge over Eel River, at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  HSC37959  Convolvulus arvensis Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC48985  Coptis laciniata M. A. Baker 1979-5-25 765 Humboldt Comment
  CAS-BOT-BC133714  Corallorhiza Doris Kildale 1931-5-10 10689 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1225828  Corallorhiza maculata Joseph P. Tracy 1948-8-15 18150 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC16580  Corallorhiza maculata D. E. Anderson 1965-6-1 3780 Humboldt Near Brush Mtn. lookout 1189 Comment
  HSC45237  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1977-6-19 3516 Humboldt Trail above Alder Springs 1585 Comment
  HSC28082  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 94 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  HSC44843  Corallorhiza mertensiana Thomas W. Nelson, Jane P. Nelson 1977-7-1 3566 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  UC1046561  Corallorhiza mertensiana R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3420 Humboldt 4700 ft ridge between Mad River and; Bald Mountain, Snow CamRedwood Creek Comment
  UC14973  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5621 Humboldt Bald Mt. North Coast Ranges Comment
  HSC90429  Cordylanthus maritimus subsp. palustris Jean Hanson 1980-6-22 98 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  JEPS6035  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1933-8-22 12991 Humboldt in salt marsh n of Eel River 3 Comment
  JEPS93181  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2462 Humboldt N of Eureka, along N side of Eureka Slough; Jacobs St. turn-off of 101N just beyond bridge over slough; between two Peterbilt warehouses; population extends sporadically to Johns Used and Crashed Cars 5 Comment
  POM21053  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-22 6158 Humboldt Between Little and Big Van Druzen River - Eureka - Red Bluff Road. 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
  OBI9572  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new road towards Trinity summit Comment
  UC1196814  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1949-8-4 18413 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC604617  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt at Bucksport; Eureka 6 Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  UC1222617  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC58001  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-7-31 11785 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC76355  Cornus sericea subsp. sericea Denis Kearns 1981-7-23 418 Humboldt Near Whiteys Peak. 1524 Comment
  JEPS50152  Cornus sericea subsp. sericea Lincoln Constance 1934-6-11 844 Humboldt trail along e. bank S. Fork Eel R., N. Dyerville Flat Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  CAS-BOT-BC190003  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt East side of Big Lagoon. In 1100 acres, slope north above headquarters of Georgia Pacific Lumber Compan. Comment
  HSC41319  Corylus cornuta subsp. californica Brad Klipfel 1974-9-2 528 Humboldt Horse Mtn. Comment
  RSA33407  Corylus cornuta var. californica Doris K. Kildale 1927-3-25 3004 Humboldt Humboldt Hill Comment
  UC1223034  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  SBBG62533  Cotula coronopifolia H. E. Parks -Sep-1941 24211 Humboldt Little River State Park Comment
  HSC5426  Cotula coronopifolia R. Spellenberg 1964-6-15 412 Humboldt Along egde of Humboldt Bay, on the south side of Arcata Comment
  SDSU3877  Cotula coronopifolia Harvey 1938-8-13 2279 Humboldt North of Arcata. Comment
  HSC77347  Crassula connata L. P. Janeway 1983-5-1 256 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  SEINET200990  Crataegus douglasii J. P. Tracy 1931-4-26 9335 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC97308  Crataegus suksdorfii M. Mesler 2006-6-6 610 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  CAS-BOT-BC291479  Crepis capillaris Paul F. Covel 1937-7-12 1103 Humboldt Bolling Redwood Grove Comment
  HSC48323  Crepis capillaris Maralyn O'Meara 1974-7-11 543 Humboldt Kneeland; Barry Ridge Comment
  RSA246937  Crepis capillaris R. F. Thorne, Percy C. Everett 1965-8-8 35236 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC176476  Crepis occidentalis Joseph P. Tracy 1913-6-21 4256 Humboldt near summit of ridge between Van Duzen River and Mad River; Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  HSC31207  Crepis pleurocarpa D. E. Anderson 1972-6-20 5742 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC525606  Cryptantha affinis Joseph P. Tracy 1933-8-30 13041 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  UC594247  Cryptantha torreyana S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3425 Humboldt nw slopes Buck Mountain 822 Comment
  HSC55165  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 12155 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC74324  Cryptogramma acrostichoides Gail Newton 1980-7-23 1734 Humboldt Near Packsaddle Ridge 1463 Comment
  UC906746  Cuscuta campestris Harry B. Tucker Oct 1946 Humboldt 6 Comment
  JEPS14234  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide on Van Duzen River, Northern Coast Ranges Van Duzen River; Northern Coast Ranges, , Blue Slide 91 Comment
  HSC69630  Cynosurus echinatus R. Kalal 1980-6-3 29 Humboldt Junction of Spring St. and Hill St., Arcata 43 Comment
  SEINET200939 Image available Cynosurus echinatus Joseph P. Tracy 1947-6-8 17708 Humboldt Carlotta 5 miles east of town by old Strong's District School House [Coordinates estimated along highway] 61 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
  HSC77148  Cypripedium montanum R. York 1978-5-20 172 Humboldt Along Bluff Creek Trail 610 Comment
  JEPS35178  Cystopteris fragilis Joseph P. Tracy 1925-11-25 7325 Humboldt near S Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA1438  Cytisus monspessulanus E. R. Johnson 1929-08 1434 Humboldt Eel River. 91 Comment
  HSC9539  Dactylis glomerata E. W. Styskel 1963-5-16 25 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC58653  Danthonia californica G. L. Clifton, Griswold 1979-7-31 11723 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC420356  Darmera peltata L. B. Kildale 1930-9-9 10409 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC420365  Darmera peltata Duart V. Brown 1947-3-24 5 Humboldt 3 miles N of Willow Creek on W bank of Trinity River Comment
  JEPS49584  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  UCSB15507  Daucus pusillus 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC1197349  Daucus pusillus J. P. Tracy 1901-6-16 1145 Humboldt near Bucksport 0 Comment
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  SEINET12104065  Delphinium decorum F. H. Utech 1988-5-23 88 -283 Humboldt along CA 36 from Bridgeville enroute to Dinsmore 800 Comment
  HSC37654  Delphinium decorum subsp. tracyi Robert M. Specht, John Rehling 1976-4-25 395 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  HSC44634  Delphinium decorum subsp. tracyi Diane L. Reed 1978-5-27 125 Humboldt 2.9 mi. from Hwy. 299 on Titlow Hill Rd., Horse Mtn. Comment
  CAS-BOT-BC10313  Delphinium hesperium LeRoy Abrams 1916-7-11 6000 Humboldt Between Blacksberg and Bridgeville Comment
  HSC35550  Delphinium menziesii D. L. Gray 1964-5-3 6409 Humboldt 61 Comment
  CAS-BOT-BC9952  Delphinium nudicaule Doris K. Kildale 1927-4-17 3104 Humboldt Briceland Bridge, 0.5 miles W of Garberville 114 Comment
  RSA46895  Delphinium nudicaule Doris K. Kildale 1927-5-15 3164 Humboldt Petrolia Comment
  HSC99024  Delphinium trolliifolium Cara Witte 2008-7-16 909 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1196343  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CAS-BOT-BC121977  Delphinium trolliifolium Albert Michael Vollmer; L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec Comment
  UC1080304  Delphinium trolliifolium E. K. Balls 1957-5-25 22603 Humboldt State Hwy 36 4.5 mi sw Dinsmores 822 Comment
  HSC9584  Deschampsia cespitosa C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  UCD61160  Deschampsia cespitosa Joseph P. Tracy 1942-6-15 17128 Humboldt Englewood, Natural prairie, near Redcrest resort. 91 Comment
  CAS-BOT-BC194292  Deschampsia cespitosa subsp. cespitosa Carl B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  BLMAR267  Deschampsia elongata Jennifer Anthony-Wheeler 1999-6-16 267 Humboldt Headwaters Forest Reserve, growing near beginning of wildlife rd 524 Comment
  CAS-BOT-BC201775  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mountain 1524 Comment
  HSC102212  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1128 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC97565  Deschampsia elongata Cara Witte 2007-6-7 223 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  UC1541536  Deschampsia elongata Harold E. Parks May 1931 3232 a Humboldt Big Lagoon Comment
  UCR52469  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Sprng. Big Hill Road (F.S. 8N01) 1246 Comment
  JEPS9736  Dicentra formosa Joseph P. Tracy 1930-8-17 9164 Humboldt Big Lagoon; Northern Coast Region 15 Comment
  UC198594  Dicentra formosa Joseph P. Tracy 1917-5-13 4781 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC12427  Dicentra formosa Gary J. Stebbins 1970-4-19 72 Humboldt Along road to Fieldbrook 2.8 mi. N of Hwy. 299 Comment
  SJSU1033  Dicentra formosa A. C. Browne 1950-5-23 Humboldt Weott Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  UC421853  Dichelostemma X venustum W. L. Pedrick Jun 1907 Humboldt Ferndale Comment
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  UC275549  Dichelostemma capitatum Joseph P. Tracy 1923-6-25 6375 Humboldt Table Bluff Northen Coast Ranges 91 Comment
  HSC32860  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, James Nelson 1973-5-28 939 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC33055  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC97467  Dichelostemma capitatum subsp. pauciflorum Cara Witte 2007-5-29 126 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  RSA755796  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just west of Berry Summit on Highway 299. 915 Comment
  HSC81576  Dichelostemma ida-maia Thomas W. Nelson, Jane P. Nelson 1980-7-13 6067 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC98708  Dichelostemma ida-maia Cara Witte 2007-6-14 274 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  SEINET10872226  Dichelostemma ida-maia Mary Merello 1993-6-19 Merello 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC30061  Dichelostemma ida-maia Harley P. Chandler May 1901 1254 Humboldt Redwood Belt North Coast Ranges 152 Comment
  SEINET3885615  Dichelostemma ida-maia Jan G. Cooper 1976-8-2 5 Humboldt Along road to Horse Mountain Ski area turnoff of Hwy 299.; 0 1219 Comment
  CAS-BOT-BC500982  Dichelostemma multiflorum Harley P. Chandler 1901-6-1 1310 Humboldt Hupa Indian Reservation 152 Comment
  SBBG6909  Diplacus aurantiacus M. J. Cody 1938-7-14 Humboldt Trinidad Head Comment
  SEINET8208225  Diplacus kelloggii Marshall Ross 1942-5-5 1255 Humboldt Trinity National Forest; Hoopa Indian Reservation; 4.6 miles north of Hoopa. 244 Comment
  UC30077  Disporum hookeri Harley P. Chandler May, 1901 1089 Humboldt North Coast Ranges 152 Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  RSA20815  Disporum smithii Carl B. Wolf 1937-9-10 9313 Humboldt Along old logging road 2 miles E of Trinidad on way to Hammond Lumber Co. s Camp 20 (abandoned). 152 Comment
  HSC90953  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  UC1243950  Downingia elegans Joseph P. Tracy 1947-6-28 17748 Humboldt Larrabee Valley 731 Comment
  UC28972  Downingia elegans Chesnut and Drew Aug 1888 Humboldt Comment
  UC673096  Downingia elegans Joseph P. Tracy 1940-7-7 16673 Humboldt Grouse Mt. 1554 Comment
  RSA654125  Downingia yina Beecher Crampton 1956-6-26 3651 Humboldt Margin of Snow's Lake, 3.5 miles east of Seigler Springs Comment
  HSC49811  Drosera rotundifolia R. York 1979-4-13 227 Humboldt Big Lagoon Bog. Comment
  HSC59494  Drosera rotundifolia M. A. Ericksen 1979-4-21 213 Humboldt Big Lagoon County Beach, ca. 90 yards from the Rd. in center of bog. Comment
  UC585624  Drymocallis glandulosa Joseph P. Tracy 1935-5-25 13899 Humboldt Dobbyn Creek 152 Comment
  UC1198693  Drymocallis glandulosa var. glandulosa H. E. Parks and Joseph P. Tracy 1931-5-17 10085 Humboldt Trinity River at Willow Creek; Northern Coast Ranges, Trinity River at Willow Creek 152 Comment
  POM366609  Drymocallis glandulosa var. wrangelliana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles N of Garberville Comment
  UC154498  Drymocallis glandulosa var. wrangelliana Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  JEPS60039  Dryopteris arguta W. L. Jepson 1932-8-2 16473 Humboldt Deerfoot Vale Bull Creek Flat Comment
  HSC1189  Dryopteris expansa J. C. Reppas 1963-3-9 11 Humboldt 1 mi. N of Fickle Hill Rd. Comment
  JEPS19336  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond bed 60 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UCD49784  Eleocharis macrostachya Linda M. Barker 1976-6-22 1621 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  UCD49791  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Humboldt County. In drainage ditch along east side of State Route 101 just north of the Eureka Airport. Comment
  CDA38999  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UCR63392  Eleocharis pauciflora H. E. Parks 1934-1 5275 Humboldt North Coast, Spruce Cove, Trinidad Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  SEINET11683186  Elymus glaucus K. S. Erdman 1970-1 4849 Humboldt Redwood National Park, Redwood Creek, about 2-3 mi above the road end, near McArthur & Elam Creeks Comment
  UC1146679  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River North Coast Ranges Comment
  UC185826  Elymus trachycaulus Joseph P. Tracy 1912-7-27 3885 Humboldt Kneeland Prairie Northern Coast Ranges of California 762 Comment
  UCD62660  Elymus trachycaulus L. Whitney 1933-7-9 Humboldt Black's Lake. 1706 Comment
  POM267994  Elymus trachycaulus subsp. trachycaulus D. D. Keck 1944-7-11 5491 Humboldt 3 miles northeast of Capetown. 152 Comment
  CAS-BOT-BC229147  Empetrum nigrum Gary S. Lester 1975-4-6 604 Humboldt Megwil Point on Elk Head, north of Trinidad. Trinidad State Beach 15 Comment
  UCD117423  Empetrum nigrum subsp. hermaphroditum James Payne Smith Jr. 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just north of College Cove. Comment
  HSC43231  Epilobium brachycarpum R. Sutherland 1976-8-19 2 .19876 Humboldt 259 Comment
  HSC43233  Epilobium brachycarpum R. Sutherland 1976-8-18 2 .18876 Humboldt Briceland 183 Comment
  UC562519  Epilobium campestre Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC166893  Epilobium canum subsp. latifolium Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC75288  Epilobium ciliatum subsp. ciliatum J. O. Sawyer, M. A. Ericksen 1980-8-18 4060 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC203989  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  POM225269  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-10 14340 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC1197012  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1931-10-11 9714 Humboldt at Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC48854  Epilobium ciliatum subsp. glandulosum Brad Klipfel 1973-7-15 213 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC103281  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mountain, Forest Service Road 5N04. 1576 Comment
  HSC99114  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-6-8 238 Humboldt Intersection of National Forest 1 and 4N38. Intersection to Board Camp Mountain. 1395 Comment
  UC549762  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1932-7-16 10633 Humboldt swamp near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  UC1198501  Epilobium densiflorum Joseph P. Tracy 1914-6-28 4517 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC562510  Epilobium hallianum Joseph P. Tracy 1933-7-25 12853 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC45464  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4390 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  RSA181871  Epilobium hallianum Joseph P. Tracy 1932-7-14 10533 Humboldt Klamath Mountains, Trinity Summit; At Corral Prairie 1524 Comment
  HSC54877  Epilobium lactiflorum G. L. Clifton, Griswold 1979-7-25 10869 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC32934  Epilobium minutum Thomas W. Nelson, James Nelson 1973-5-28 950 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC39234  Epilobium minutum D. E. Anderson, J. P. Smith 1971-7-6 - 1273 Humboldt Horse Mtn. Comment
  SEINET6944762 Image available Epilobium minutum W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  HSC102004  Equisetum arvense M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 905 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC98068  Equisetum arvense Cara Witte 2007-7-11 505 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC99486  Equisetum arvense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 145 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
  UC503057  Equisetum arvense Doris Kildale Aug. 1925 Humboldt Trinity Summit 1524 Comment
  JEPS60127  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River near Grizzly Creek Grizzly Creek; Van Duzen River 91 Comment
  RSA239686  Equisetum laevigatum Larry E. DeBuhr 1973-4-23 990 Humboldt Richardson Grove Redwood State Park. Comment
  HSC37403  Equisetum telmateia subsp. braunii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 512 Humboldt Along Lost Man Creek. 38 Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  UC526937  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-3-17 13163 Humboldt Trinidad 3 Comment
  UCD135715  Equisetum telmateia subsp. braunii B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC37908  Erechtites glomeratus Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  CAS-BOT-BC299912  Erechtites minimus K. Boynton 1920-9-28 s.n. Humboldt 6 mi. south of Ferndale Comment
  POM51468  Erechtites minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  UCR48863  Erechtites prenanthoides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 20 Humboldt Beside Mattole Rd at Bear River Ridge, south of Ferndale 525 Comment
  UC535715  Eremocarpus setiger Eleanor Armstrong 1934-7-18 1129 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC58928  Erica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka Comment
  HSC57894  Ericameria greenei Butler, Overton 1979-7-31 11469 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC298297  Ericameria nauseosa var. speciosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt 1524 Comment
  CAS-BOT-BC296107  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA47129  Erigeron foliosus var. mendocinus Doris K. Kildale 1925-7-19 1046 Humboldt Bridgeville Comment
  HSC46953  Erigeron glaucus J. P. Smith, Thomas W. Nelson 1977-6-30 9208 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  HSC81688  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 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
  UC176758  Erigeron strigosus var. strigosus Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5712 Humboldt Hoopa Valley Comment
  CAS-BOT-BC224260  Eriodictyon californicum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC906676  Eriodictyon californicum Joseph P. Tracy 1947-7-5 17795 Humboldt near Mud Springs Trinity Summit (Trinity Summit); , near Mud Springs 1371 Comment
  RSA802617  Eriogonum J. R. Bruff 1937-8-17 929 Humboldt Richardson Grove, bed of Eel River. Comment
  HSC97965  Eriogonum compositum var. compositum Cara Witte 2007-6-20 308 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  NY323307  Eriogonum greenei E. L. Greene 1876-7-7 s.n. Humboldt Comment
  CDA18250  Eriogonum latifolium G. D. Barbe, T. C. Fuller 1974-6-19 1876 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  LA206936  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  POM279950  Eriogonum latifolium Lyman Benson 1929-7-15 1811 Humboldt Clam Beach, Trinidad. Comment
  UCR122372  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  RSA89772  Eriogonum latifolium P. A. Munz 1954-7-25 19870 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC259533  Eriogonum luteolum var. luteolum L. R. Abrams 1916-7-11 6069 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC261498  Eriogonum nudum var. nudum L. R. Abrams 1916-7-11 6003 Humboldt Between Blocksberg and Bridgeville Comment
  UC1198137  Eriogonum nudum var. nudum Joseph P. Tracy 1917-9-2 4844 Humboldt Grouse Mountain Nothern Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC267473  Eriogonum umbellatum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  HSC98698  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-25 585 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1 mile south of intersection with National Forest 1. 1525 Comment
  SEINET3841343 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-28 14329 Humboldt Trinity Summit, Head of Devil's Hole 1829 Comment
  HSC43852  Eriophyllum lanatum var. achilleoides Maralyn O'Meara 1974-7-17 552 Humboldt Kneeland Comment
  UC1173658  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1939-4-29 16241 Humboldt at mouth of Slate Creek (along Klamath River); Klamath River, Slate Creek 121 Comment
  HSC98956  Eriophyllum lanatum var. integrifolium Cara Witte 2008-7-28 948 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  CAS-BOT-BC301689  Eriophyllum lanatum var. lanceolatum Lincoln Constance; Reed C. Rollins 1942-5-12 2890 Humboldt Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec 121 Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  HSC5585  Eriophyllum lanatum var. lanceolatum Lincoln Constance, R. C. Rollins 1942-5-12 2890 Humboldt Klamath River, 12 mi. N of Weitchpec 122 Comment
  UC129579  Eriophyllum lanatum var. lanceolatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5711 Humboldt Hoopa Valley Comment
  UC582675  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge 1066 Comment
  HSC36377  Eriophyllum staechadifolium Thomas W. Nelson 1975-8-10 2240 Humboldt At Table Bluff Comment
  CAS-BOT-BC301922  Eriophyllum staechadifolium Joseph P. Tracy 1918-7-1 4971 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  HSC79415  Erodium cicutarium Kenneth Clark 1980-3-1 514 Humboldt Hillslope due N from Dead Man's Gulch, near access trail 122 Comment
  CAS-BOT-BC41570  Erysimum capitatum Doris K. Kildale 1926-3-21 1578 Humboldt Knuland Prairie. 853 Comment
  UC1034752  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt depression in coastal dunes near Humboldt Bay lighthouse (betw. Fairhaven and end of sandy point off Eureka) Comment
  RSA0008580  Erysimum menziesii R. I. Bonn 1965-3-19 10 -a Humboldt 4 miles west of Arcata, on Lanphere Road Comment
  HSC48866  Erysimum perenne Brad Klipfel 1973-6-10 61 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  HSC48757  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel 1973-6-10 71 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC85455  Erythronium oregonum subsp. leucandrum Andrew Buchanan, et al. 1986-4-19 18 Humboldt Horse Mtn. junction with Titlow Hill Ski Area access rd., E slope of the hill at edge of pine forest Comment
  HSC23676  Eschscholzia californica Tim Baroni 1971-7-6 111 Humboldt 1 mi. S of Ferndale on the Mattole Rd. Comment
  HSC98911  Eschscholzia californica Cara Witte 2007-7-9 465 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC58763  Eucephalus ledophyllus Terry Griswold 1979-7-26 10161 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC1199347  Euchiton gymnocephalus Joseph P. Tracy 1936-5-17 14811 Humboldt 6 mi se Arcata; Fickle Hills 609 Comment
  UC1607850  Euchiton gymnocephalus Parks and Tracy 1932-7-30 1133 Humboldt Trinidad; Camp Twenty One 182 Comment
  UC562614  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bald Hills road) 152 Comment
  JEPS20471  Euchiton sphaericus Joseph P. Tracy 1940-8-11 16694 Humboldt near Raccoon Creek; Trinity River Valley 152 Comment
  HSC37659  Euonymus occidentalis Jan Fryling 1976-9-28 Humboldt Cutten area of the city of Eureka. Comment
  UC165805  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1908-6 2866 Humboldt opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  UC1198983  Euphorbia crenulata Joseph P. Tracy 1935-5-25 13879 Humboldt Fort Seward 106 Comment
  UCR94919  Euphorbia helioscopia D. L. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  CAS-BOT-BC310683  Euthamia occidentalis S. K. Harris; Charlotte Wilder 1938-9-7 s.n. Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  HSC35971  Fallopia convolvulus Thomas W. Nelson, J. O. Sawyer 1975-9-25 2024 Humboldt Beside Hwy. 101 at 11th St. bridge Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC9847  Festuca californica D. E. Anderson 1965-5-22 3721 Humboldt Road to Blocksburg, 3 mi. S of Bridgeville. Comment
  HSC99867  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2892 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  UCD65871  Festuca californica subsp. californica R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD65873  Festuca californica subsp. californica R. Tofsrud 1947-7-1 203 Humboldt Between Alder Point and Zinea. Comment
  CAS-BOT-BC282501  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt South Fork Peak, lower N.W. slope of Buck Mtn. 792 Comment
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC188916  Festuca idahoensis Jos. Burtt Davy 1899-6-9 5377 Humboldt near Harris Comment
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC99020  Festuca occidentalis Cara Witte 2007-6-7 227 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  RSA123495  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC38531  Festuca occidentalis Harley P. Chandler May 1901 1186 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC519702  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt near Bridgeville; Van Duzen River Comment
  BLMAR30  Festuca perennis Brad Barr June, 1982 30 Humboldt King range, Smith cabin Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  HSC95257  Festuca rubra Andrea Pickart 2002-7-3 152 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  SEINET181178 Image available Festuca rubra Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15065 Humboldt 20 mi N of Eureka Comment
  UC1103706  Festuca subulata Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103708  Festuca subulata Joseph P. Tracy 1921-4-17 5429 Humboldt Alton Northern Coast Ranges 30 Comment
  UCD66433  Festuca subulata R. Tofsrud 1947-7-1 198 Humboldt Between Alder Point and Zenia. Comment
  UC1103705  Festuca subuliflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka Northern Coast Region 0 Comment
  UC1197363  Foeniculum vulgare Joseph P. Tracy 1930-10-12 9216 Humboldt Eel R. Alton to Fortuna; Eel R. 15 Comment
  CAS-BOT-BC453523  Fragaria chiloensis Joseph P. Tracy 1904-4-24 2025 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region Comment
  CHSC19732  Fragaria chiloensis D. J. Jager 1965-5-12 66 Humboldt Ca. 1/2 mi. north of Trinidad on bluff above ocean. 45 Comment
  UC1198726  Fragaria chiloensis Joseph P. Tracy 1901-5-12 1083 Humboldt Eureka, immediate vicinity of 0 Comment
  UC1198725  Fragaria chiloensis Joseph P. Tracy 1918-4-21 4875 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC1198728  Fragaria vesca Joseph P. Tracy 1917-4-29 4778 Humboldt Lucas Prairie; Northern Coast Region, Eureka 0 Comment
  UC1198731  Fragaria vesca Joseph P. Tracy 1921-4-24 5459 Humboldt Phillipsville Northern Coast Ranges (slopes and groves facing South Fork of Eel River) 121 Comment
  CAS-BOT-BC52733  Frangula californica subsp. californica L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  HSC41295  Frangula californica subsp. occidentalis Brad Klipfel 1974-7-27 495 Humboldt Horse Mtn. Comment
  OBI36633  Frangula purshiana David J. Keil 1983-7-2 17306 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  SEINET516308  Frangula purshiana Vernon H. Oswald 1998-4-16 8914 Humboldt Elk Head, N end of Trinidad State Beach. 30 Comment
  HSC101453  Frangula purshiana subsp. purshiana Cara M. Witte 2008-7-2 822 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  CAS-BOT-BC217698  Fraxinus latifolia Doris K. Kildale 1927-5-13 3142 Humboldt Redwood Creek at Berry's 289 Comment
  RSA171981  Fraxinus latifolia Robert F. Thorne 1957-9-2 18992 Humboldt Burlington State Park, just S of Weott. Comment
  RSA24070  Fraxinus latifolia Carl B. Wolf 1940-11-10 9784 Humboldt Along the Mattole River 3 miles below Upper Mattole P.O. at Miner s Ranch 152 Comment
  HSC96863  Fritillaria affinis Frances Reuss Harmon 2001-3-31 17 Humboldt Grays Falls picnic area, SE edge of open rocky soil Comment
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Apr 21 2014
  UC1005680  Fritillaria affinis Frank W. Gould 1939-5-30 830 Humboldt Horse Mountain, about half-way up mountain road Horse Mountain 1000 Comment
  UC175284  Fritillaria affinis Joseph P. Tracy 1913-6-20 4228 Humboldt nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC67208  Fritillaria recurva Thomas W. Nelson, James Nelson 1980-6-10 5436 Humboldt Along E side of Red Mtn. 1372 Comment
  SEINET8773683  Fumaria capreolata R. R. Halse 2013-3-28 8767 Humboldt Eureka, at a Texaco station near 3543 Broadway Street (US Hwy 101) and its intersection with McCullens Avenue. 6 Comment
  HSC69634  Galium aparine R. Kalal 1980-6-3 25 Humboldt Along Samoa Blvd. 2 Comment
  JEPS6719  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC98081  Galium bolanderi Cara Witte 2007-7-3 415 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  JEPS52693  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi e Dinsmores (on Hwy 36, w-facing slope) 731 Comment
  SEINET6991542  Galium californicum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Open burnt timber, saddle near east end of Bald Hills, southeast of Orick. Comment
  UC602527  Galium californicum subsp. californicum Joseph P. Tracy 1936-6-27 15000 Humboldt Miranda South Fork Eel River 121 Comment
  JEPS6616 Image available Galium nuttallii Joseph P. Tracy 1924-8-10 6816 Humboldt Blue Slide Van Duzen River; Blue Slide, on Van Duzen River, Humboldt Co. 91 Comment
  JEPS6496  Galium parisiense W. L. Jepson 1902-6 1981 Humboldt Hupa Comment
  UC176990  Galium parisiense Joseph P. Tracy 1913-4-27 4042 Humboldt Eureka Comment
  UC196077  Galium trifidum Joseph P. Tracy 1900-9-3 941 Humboldt Eureka Northern Coast Region 0 Comment
  HSC57217  Galium triflorum Griswold, Butler 1979-7-12 7289 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC602538  Galium triflorum Joseph P. Tracy 1932-7-17 10654 Humboldt woods near Corral Prairie; Trinity Summit 1584 Comment
  RSA256577  Galium triflorum J. O. Sawyer 1970-6-24 2270 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  UC1199343  Gamochaeta ustulata Joseph P. Tracy 1935-5-25 13835 Humboldt Fort Seward 106 Comment
  UC165753  Gamochaeta ustulata J. P. Tracy 1906-5-20 2468 Humboldt immediate vicinity Eureka 0 Comment
  HSC5689  Gamochaeta ustulata David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  JEPS20484  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  UC127829  Gamochaeta ustulata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5465 Humboldt near Elk Prairie; North Western California Comment
  CAS-BOT-BC188536  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt Sand Hills of Ocean Beach at Samoa, opposite Eureka Comment
  HSC22830  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W.M. Lanphere's ranch 9 Comment
  UC183578  Garrya elliptica Joseph P. Tracy 1913-3-2 4011 Humboldt Eureka; Northern Coast Region 0 Comment
  OBI14160  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow crk Comment
  UC1225768  Garrya fremontii Joseph P. Tracy 1939-1-14 1618 a Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC282613  Gastridium phleoides L. R. Abrams 1916-7-11 6025 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  SEINET10559581  Gastridium phleoides Harley P. Chandler Chandler 1506 Humboldt Klamath River. 427 Comment
  UC1714442  Gastridium ventricosum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  CAS-BOT-BC58916  Gaultheria shallon Doris K. Kildale; J. W. Gillespie 1929-6-25 8392 Humboldt Pine's Pasture, Eureka Comment
  HSC47492  Gaultheria shallon Sheila Logan 1978-4-9 16 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC59576  Gaultheria shallon Rick Lundquist 1979-5-23 104 Humboldt 3.4 mi. up Fickle Hill Rd. from 11th St. 274 Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  RSA175205  Gaultheria shallon R. F. Thorne 1957-9-3 19026 Humboldt Patrick's Point State Park. Comment
  RSA40407  Gaultheria shallon P. A. Munz 1948-8-13 12351 Humboldt 8 miles east of Blue Lake. 305 Comment
  UCSB12342  Gaultheria shallon 1961-7-4 Humboldt 4.8 miles east of the North Fork of the Mad River on U.S. 299 685 Comment
  HSC54012  Gayophytum diffusum subsp. parviflorum Griswold, Butler 1979-7-12 7142 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC54746  Gayophytum racemosum G. L. Clifton, Griswold 1979-7-26 10230 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  RSA782434  Genista monspessulana R. W. Spjut, Paul Burchstead 2008-6-14 16348 Humboldt North Coast Ranges. West side of Hwy. 101 between Piercy and Willits 259 Comment
  RSA246869  Gentiana sceptrum Robert F. Thorne, P. C. Everett 1965-8-9 35288 Humboldt Big Lagoon. 3 Comment
  UC213322  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1197399  Geranium carolinianum Joseph P. Tracy 1912-7-4 3723 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS61425  Geranium dissectum Mrs. M. H. Manning Jun 1902 Humboldt Hupa Comment
  JEPS61428  Geranium dissectum Lincoln Constance 1934-6-7 833 Humboldt Johnson Prairie South Fork Eel River, Bull Creek Region Comment
  HSC99248  Geranium molle T. Beck 1963-4-27 42 Humboldt Camp Bauer, Korbel Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  UC275490  Geranium oreganum Joseph P. Tracy 1925-5-17 6976 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC8663  Geranium retrorsum Richard Steele 1962-5-1 22 Humboldt Arcata, 0.5 mi. S of HSC campus 15 Comment
  CAS-BOT-BC457029  Geum macrophyllum Elizabeth Parsons Hawver 1915-7-1 s.n. Humboldt Carlotta Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  HSC16989  Gilia millefoliata J. R. Woodside 1963-5-19 3 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC16991  Gilia millefoliata J. Mustain 1963-4-20 41 Humboldt Big Lagoon Park Comment
  HSC16993  Gilia millefoliata Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC40933  Gilia millefoliata Linda M. Barker 1976-6-1 1549 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. 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
  JEPS11824  Githopsis diffusa subsp. robusta Lincoln Constance 1934-6-4 819 Humboldt Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  UC169034  Githopsis specularioides Joseph P. Tracy 1908-6-9 2655 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC21496  Glehnia littoralis subsp. leiocarpa S. J. Moore 1965-4-10 1 Humboldt Dry Lagoon State Park, 100 yds from road, on beach Comment
  HSC93526  Glehnia littoralis subsp. leiocarpa Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 748 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  UC154100  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-8-7 1261 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  HSC90679  Glyceria declinata Gail Newton 1982-6-10 3591 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC58551  Glyceria elata Overton, Butler 1979-7-24 9812 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC76569  Glyceria elata Teresa Prendusi 1981-7-24 496 Humboldt Near Whiteys Peak 1585 Comment
  UC526908  Glyceria elata Joseph P. Tracy 1926-6-6 7558 Humboldt w of Hoopa (near summit on road to Bair's, Hoopa Mountain); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC526902  Glyceria striata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8932 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 152 Comment
  SEINET10591165  Glyceria striata Harley P. Chandler Chandler 1526 Humboldt Klamath River. 427 Comment
  CAS-BOT-BC302619  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  POM174074  Gnaphalium sphaericum Joseph P. Tracy 1918-9-1 5097 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC54588  Goodyera oblongifolia Overton, Butler 1979-7-24 9652 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC54649  Goodyera oblongifolia Overton, Butler 1979-7-25 9850 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC34239  Goodyera oblongifolia J. D. Ackerman 1975-8-24 648 Humboldt Intersection of Hwy. 255 to Samoa Bridge and Samoa Blvd. Comment
  CAS-BOT-BC304733  Grindelia hirsutula Carl B. Wolf 1927-8-22 783 Humboldt Big Lagoon Comment
  CAS-BOT-BC304744  Grindelia hirsutula Marcus E. Jones 1931-7-16 29143 Humboldt Arcata Comment
  OBI37801  Grindelia stricta var. platyphylla David J. Keil 1983-7-1 17281 Humboldt Ca. 7 mi W of Honeydew along Mattole rd Comment
  CDA6171  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  POM187851  Grindelia stricta var. stricta Marcus E. Jones 1931-7-16 29143 Humboldt Arcata. Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  RSA47124  Grindelia stricta var. stricta Doris K. Kildale 1925-7-15 1080 Humboldt Eureka Slough. Comment
  RSA93069  Grindelia stricta var. stricta J. T. Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata. Comment
  JEPS67940  Hackelia bella H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mountain Comment
  UC1222248  Hackelia bella Joseph P. Tracy 1951-6-26 19565 Humboldt near Twin Lakes ((Snout Camp and Twin Lakes Trip)); Snout Camp Comment
  UC667133  Hastingsia alba Joseph P. Tracy 1935-7-24 14195 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC302442  Hazardia whitneyi var. discoidea Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC58345  Helenium bigelovii Overton, Butler 1979-8-2 12673 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA167314  Helenium bolanderi Joseph P. Tracy, H. E. Parks 1950-7-16 11686 Humboldt Park's place, 2 miles N of Trinidad. Comment
  CAS-BOT-BC309413  Helenium puberulum E. R. Johnson 1929-8-1 1431 Humboldt Along the Redwood Highway, south of Eureka 30 Comment
  UC32241  Helenium puberulum C. C. Marshall 1888-1-1 Humboldt Comment
  HSC97359  Hemitomes congestum John DeMartini 1975-7-2 Humboldt Azalea Ave. Maw property, McKinleyville. Bulk Collection 81 Comment
  HSC35622  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, B. Reinhardt 1975-7-30 2123 Humboldt Beside private road to Pilot Rock Comment
  HSC35966  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-21 1950 Humboldt Beside Hwy. 36 ca. 5 mi. E of Bridgeville Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  SEINET11848439  Hemizonia tracyi J. P. Tracy 1950-1 18757 Humboldt Domingo Hill, near Petrolia, hills between town & ocean Comment
  UC1197367  Heracleum lanatum Joseph P. Tracy 1930-7-18 9079 Humboldt near Mckay Camp S. Fork Mt. 1676 Comment
  RSA453722  Heracleum maximum B. C. Templeton 1964-6-13 10181 Humboldt Along old 101 Highway to Trinidad Comment
  HSC90776  Hesperevax sparsiflora Peter Sorensen 1976-8-16 Humboldt Woodley Island Comment
  JEPS32319  Hesperolinon micranthum W. L. Jepson 1902-6 1976 Humboldt Three Creeks to Willow Creek (on expedition from Ukiah to the Hupa Indian Reservation) Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 Comment
  HSC99566  Heterocodon rariflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 231 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
  HSC20191  Heuchera micrantha D. E. Anderson 1962-5-1 2200 Humboldt 1 mi. W of Hoopa Comment
  CAS-BOT-BC420721  Heuchera micrantha var. diversifolia L. R. Abrams 1916-7-10 5960 Humboldt Between Harris and Alder Pt., southern Humboldt County Comment
  HSC5825  Hieracium albiflorum David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  POM311256  Hierochloe occidentalis Keith C. Hughes 1961-2-3 327 Humboldt Richardson Grove State Park; Coast Ranges Mt. Range 137 Comment
  UC39806  Hierochloe occidentalis W. C. Blasdale 1896-6-7 Humboldt near Kneeland Prairie Comment
  HSC10127  Holcus lanatus True Hoyle 1967-6-24 25967 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  HSC10132  Holcus lanatus J. R. Eichelberger 1964-5-13 83 Humboldt 1/4 mile from U.S. 101 on the N side of the Mad River. Comment
  POM352401  Holcus lanatus Edith A. Purer 1932-7-30 16085 Humboldt South of Orick. Comment
  UC1541516  Holcus lanatus Harold E. Parks May 1933 4303 Humboldt Spruce Cove Trinidad; , Trinidad Comment
  UCD84850  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC149905  Holodiscus discolor Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  OBI10161  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi S of Ferndale 305 Comment
  RSA46788  Holodiscus discolor Doris Kildale Gillespie 1937-8-12 15256 Humboldt South Fork Mountain. Comment
  UC774993  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt 8 mi e of Hoopa Valley (on new road towards Trinity Summit, North Coast Range); North Coast Range 1219 Comment
  CAS-BOT-BC149898  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  CAS-BOT-BC281265  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  UC1103740  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1901-6-16 1144 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC289563  Hordeum marinum subsp. gussoneanum David D. Keck 1948-7-2 6001 Humboldt Ridge east of Redwood Creek on road to Willow Creek on US route 299 Comment
  HSC37573  Hordeum vulgare J. D. Ackerman 1975-6-10 460 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge turnoff intersection. S of Manila. Comment
  UC1198711  Horkelia californica Joseph P. Tracy 1930-6-15 8755 Humboldt n Dobbyn Creek; Northern Coast Ranges 152 Comment
  HSC35867  Horkelia californica var. californica Thomas W. Nelson, James Nelson 1975-8-5 2127 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  JEPS102923  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1987-6-11 8610 Humboldt 8.5 mi E of junction with SR 96 Big Hill Rd Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  HSC82020  Horkelia tridentata var. flavescens Thomas W. Nelson, James Nelson 1980-6-10 5397 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  SBBG3396  Hosackia crassifolia var. crassifolia H. and M. Dearing 1933-5-21 895 Humboldt 4 mi S of Orick Comment
  UCD106139  Hosackia oblongifolia A. Murphy 1951-6-25 s.n. Humboldt location unknown. 1402 Comment
  UCD106154  Hosackia oblongifolia Tofsrud 1948-9-1 s.n. Humboldt Clear Lake, on road from Horse Mt. to Grouse Mt. 1371 Comment
  HSC70487  Hosackia oblongifolia var. oblongifolia Gail Newton 1980-7-20 1616 Humboldt Near Bell Swamps 1426 Comment
  HSC97436  Hydrocotyle ranunculoides Ivy Watson 2008-9-28 33 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  HSC13557  Hydrophyllum occidentale H. E. Parks, J. P. Tracy 1935-6-16 Humboldt Buck Mtn. Comment
  SBBG28785  Hydrophyllum occidentale L. Constance, A. A. Beetle, J. P. Tracy 1940-5-17 2618 Humboldt lower slopes of Buck Mtn near Eureka 792 Comment
  SEINET12279830  Hydrophyllum occidentale H. P. Chandler 1901-1 1263 Humboldt Redwood Belt 457 Comment
  HSC13539  Hydrophyllum tenuipes R. D. Zortman 1963-5-12 40 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC1762197  Hydrophyllum tenuipes H. E. Parks and Joseph P. Tracy 1949-6-25 11674 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  JEPS1638  Hydrophyllum tenuipes Lincoln Constance 1934-5-26 650 Humboldt North Dyerville Flat grove near Founder's Tree (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel Riv 48 Comment
  UC1198413  Hypericum perforatum Joseph P. Tracy 1933-6-25 12628 Humboldt along Eel R. 2 to 5 mi. e. of S. Fork (Camp Grant); Eel R., Camp Grant 45 Comment
  UC420732  Hypericum perforatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5715 Humboldt Hoopa Valley North Coast Ranges, Hoopa Valley Comment
  UC668259  Hypericum perforatum Joseph P. Tracy 1937-4-3 15244 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC401229  Hypericum perforatum Doris K. Kildale 1928-6-24 7061 Humboldt Redwood Creek at Berry's Comment
  UC1223075  Hypochaeris glabra Joseph P. Tracy 1950-6-23 18866 Humboldt Dobbyn Creek 213 Comment
  HSC26376  Hypochaeris radicata T. O. Osborne 1970-9-16 34 Humboldt Prisoner Rock, Trinidad Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  UC668129 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 10104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
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Feb 27 2012
  HSC47580  Iris douglasiana Sheila Logan 1978-4-10 176 Humboldt Redwood Park behind HSU campus Comment
  JEPS542  Iris douglasiana W. L. Jepson 1932-8-9 16539 Humboldt Bull Creek 152 Comment
  UC1196393  Iris douglasiana Joseph P. Tracy 1924-8-3 6762 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC13860  Iris douglasiana M. N. Gold 1966-5-22 42 Humboldt 1 mi. E of Hwy. 101 on Myrtle Ave., Eureka Comment
  HSC13864  Iris douglasiana John A. DuBois 1962-5-5 17 Humboldt 20 mi. E of Arcata Comment
  HSC13869  Iris douglasiana W. A. Heaton 1965-4-10 22 Humboldt 0.5 mi. N of Trinidad State Park Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC31445  Iris tenuissima D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5565 Humboldt Lower slopes of Black Lassic near Trinity Co. line 1585 Comment
  HSC67518  Iris tenuissima J. P. Smith, J. O. Sawyer 1976-5-2 8620 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC74329  Iris tenuissima M. A. Baker 1980-6-16 1958 Humboldt Near Onion Mtn. 1280 Comment
  JEPS93174  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 Comment
  RSA246917  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35215 Humboldt Samoa Peninsula: near sea level Comment
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Sep 12 2018
  CAS-BOT-BC340228  Jaumea carnosa Marcus E. Jones 1931-7-16 2911 Humboldt Arcata Comment
  POM254124  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay. Comment
  UC165200  Jaumea carnosa Joseph P. Tracy 1909-9-19 3101 Humboldt bay shore at Samoa; North Coast Ranges, vicinity of Humboldt Bay 0 Comment
  CAS-BOT-BC102330  Juglans regia Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce Creek, Orleans region Comment
  UC1152120  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt w of mouth of South Fork (near the South Fork); Trinity River Valley, South Fork 182 Comment
  UC1103049  Juncus balticus subsp. ater Joseph P. Tracy 1904-7-31 2128 Humboldt Eureka Northern Coast Region 0 Comment
  UC183780  Juncus bolanderi Joseph P. Tracy 1912-7-26 3826 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA296738  Juncus breweri J. P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC98006  Juncus covillei Cara Witte 2007-7-12 516 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  UC201385  Juncus covillei var. obtusatus Joseph P. Tracy 1918-7-5 5007 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC99140  Juncus effusus Cara Witte 2008-7-28 945 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  POM273046  Juncus effusus subsp. pacificus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  SEINET11789636  Juncus falcatus J. P. Tracy 1930-1 9218 Humboldt N end of Humboldt Bay Comment
  HSC57975  Juncus mertensianus G. L. Clifton, Griswold 1979-7-31 11679 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC58113  Juncus mertensianus G. L. Clifton, Griswold 1979-8-1 12069 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  POM292636  Juncus patens Lyman Benson 1929-7-14 1742 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  RSA54122  Juncus tenuis Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CHSC103507  Juncus xiphioides Peter F. Zika 2009-6-16 24501 Humboldt Outer North Coast Ranges. West shore of Trinity River, near boat ramp, N end of town of Willow Creek. 120 Comment
  HSC57907  Juncus xiphioides Gilbert Muth 1979-7-31 11509 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC32539  Keckiella corymbosa Thomas W. Nelson 1973-8-19 1116 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS15153  Keckiella corymbosa H. L. Person 1932-7-31 Humboldt Korbel Eureka Quad. (Mad River, Camp 16) Comment
  UC41736  Keckiella lemmonii Chesnut and Drew 1800-1 Humboldt Comment
  JEPS12479  Kelloggia galioides Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16662 Humboldt Friday Ridge; Grouse Mt. 1280 Comment
  POM206591  Koeleria macrantha Jos Burtt Davy, W. C. Blasdale 1899-6-9 5375 Humboldt Near Harris Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  CAS-BOT-BC349841  Lactuca tatarica subsp. pulchella Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  JEPS38993  Lagophylla ramosissima W. L. Jepson 1932-8-8 16482 Humboldt Canoe Creek; Grasshopper Peak 1066 Comment
  UC581803  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  HSC69892  Lagophylla ramosissima Thomas W. Nelson, Jane P. Nelson 1977-7-29 3639 Humboldt Beside S.R. 36 at head of Larabee Valley 823 Comment
  UCD125067  Lamium purpureum Joseph P. Tracy 1945-5-10 17508 Humboldt Eureka. 45 Comment
  CAS-BOT-BC337869  Lapsana communis Carl B. Wolf 1927-8-22 801 Humboldt Big Lagoon Comment
  UC204782  Lapsana communis Joseph P. Tracy 1918-6-23 4957 Humboldt outskirts of Arcata, around Humboldt bay Northern Coast Ranges, Humboldt Bay 60 Comment
  HSC14707  Lathyrus glandulosus Lincoln Constance 1934-6-8 837 Humboldt S Fork Eel River, Cow Creek Fire Trail, from Bull Creek Rd., N over the divide, into the headwaters of Bear Creek. Comment
  HSC14738  Lathyrus littoralis Norman H. Moe 1962-5-3 Humboldt Lanphere's Place Comment
  RSA183499  Lathyrus littoralis J. R. Woodside 1963-4-3 31 Humboldt One and one fourth miles north of Fairhaven. Comment
  UCSB15805  Lathyrus littoralis Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA90281  Lathyrus littoralis F. W. Peirson 1923-7-11 3623 Humboldt 18 miles north of Eureka. Comment
  UC495712  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt near Samoa; Northern Coast Ranges 6 Comment
  UC302108  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1926-5-2 7444 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC1222407  Lathyrus polyphyllus Joseph P. Tracy 1946-6-15 17570 Humboldt near Green Point (w of Redwood Creek on Trinity Highway) 457 Comment
  UC1199064  Lathyrus torreyi Joseph P. Tracy 1898-7-13 74 Humboldt near Hydesville; Northern Coast Region 60 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
  UC1013059  Lathyrus vestitus C. L. Hitchcock 1948-6-7 19085 Humboldt ca 15 mi e Blue Lake (along Highway 299) Comment
  JEPS55357  Lathyrus vestitus var. ochropetalus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  UC153946  Layia carnosa Joseph P. Tracy 1910-4-24 3121 Humboldt Humboldt Bay Comment
  UC198626  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt mouth Little River Comment
  RSA92250  Layia carnosa F. W. Peirson 1923-7-11 3905 Humboldt 18 miles north of Eureka Comment
  SEINET3374979 Image available Lemna minor Joseph P. Tracy 1932-8-21 10370 Humboldt Three Cabins Ranch; on E side of Mad River on W slope of Chaparral Mt. 457 Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  HSC5926  Leontodon saxatilis subsp. saxatilis S. R. Johnson 1965-3-15 12 Humboldt 1 mi. N of Luffenholtz Beach Comment
  RSA170231  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC1225825  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt 2 mi n Harris 609 Comment
  CAS-BOT-BC341822  Lessingia nemaclada James T. Vale 1979-7-26 s.n. Humboldt Elk Creek Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  HSC48837  Lewisia nevadensis Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 28 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC673020  Lewisia nevadensis Joseph P. Tracy 1933-7-11 12687 Humboldt Grouse Mountain 1524 Comment
  UC526792  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  RSA10017  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt Sand dunes near Samoa, on Humboldt Bay 6 Comment
  CAS-BOT-BC436493  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt Humboldt Bay, near top of Humboldt Hill 152 Comment
  SEINET231011 Image available Ligusticum grayi A. Tiehm 1985-7-26 10005 Humboldt Santa Rosa Range seep at the head of Morey Creek E of Ridge crest at S end of range Comment
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Oct 28 2014
  UC176172  Lilium columbianum Joseph P. Tracy 1913-9-9 4395 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  CAS-BOT-BC508400  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8260 Humboldt Between Trinidad and Big Lagoon Comment
  RSA766918  Lilium columbianum Joseph M. Keefe 1967-7-8 1876 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 2 Comment
  UCD139729  Lilium columbianum H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad on Redwood Highway. Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  UC175293  Lilium kelloggii Joseph P. Tracy 1913-7-20 4376 Humboldt e of Korbel (Bald Mountain); Northern Coast Ranges, Bald Mountain 914 Comment
  UC1198238  Lilium occidentale Joseph P. Tracy 1912-7-25 3811 Humboldt Kneeland Prairie Northern Coast Ranges (near Skinner's Mill) 762 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
  UC1198235  Lilium pardalinum Joseph P. Tracy 1924-7-4 6714 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  CAS-BOT-BC130728  Lilium pardalinum Albert Vollmer 1949-7-1 2 Humboldt On Bald Mountain Comment
  HSC65208  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-7-17 676 Humboldt Near Clear Lake 1494 Comment
  CAS-BOT-BC132964  Lilium rubescens Doris K. Kildale 1927-6-24 3538 Humboldt On top of ridge before taking down grade into Shelter Cove Comment
  CAS-BOT-BC132969  Lilium rubescens Ella Dales Cantelow 1939-6-4 2443 Humboldt 6 1/10 mi. s. of Bridgeville on road from Alder Point Comment
  CAS-BOT-BC133013  Lilium washingtonianum subsp. purpurascens Doris K. Kildale 1925-7-2 969 Humboldt Bug Creek, Buttes 1219 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  POM266012  Limnanthes douglasii subsp. nivea Lincoln Constance, R. C. Rollins 1942-5-21 s.n. Humboldt Two miles north of Harris. 762 Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC902115  Limonium californicum Joseph P. Tracy 1949-9-18 18581 Humboldt Eel River; mouth, area of salt marsh 3 Comment
  UC146168  Linanthus androsaceus Joseph P. Tracy 1908-6 2746 Humboldt nw slope Buck Mountain; Northern Coast Ranges 457 Comment
  UC907986  Linanthus androsaceus Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1198567  Linanthus bicolor Joseph P. Tracy 1914-5-14 4435 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  POM203675  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  HSC72632  Linnaea borealis subsp. longiflora J. P. Smith 1977-7-3 9251 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC1239560  Linnaea borealis var. longiflora Joseph P. Tracy 1936-6-28 15018 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  HSC79358  Linum bienne Kenneth Clark 1980-4-18 595 Humboldt Above Dead Man's Gulch. 168 Comment
  UCSB13395  Linum usitatissimum Dearing, Hugh; Dearing, Margaret 1939-6-23 Humboldt 30 miles east of Arcata Comment
  UC1196369  Lithocarpus densiflorus Joseph P. Tracy 1926-10-6 7807 Humboldt between South Fork of Trinity River and Madden Creek (mountain back of Ammon Ranch); Northern Coast Ranges 609 Comment
  JEPS81092  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson and Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland; e side of junction of Kneeland and Maple Creek roads 670 Comment
  UC1196482  Lithophragma affine Joseph P. Tracy 1919-5-31 5165 Humboldt along Willow Creek (near its mouth, tributary of Trinity River); Northern Coast Ranges, , trib Trinity River 152 Comment
  UC14526  Lithophragma affine W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  HSC70567  Lithophragma heterophyllum M. A. Baker 1980-7-19 3022 Humboldt Near Bret Hole. 1814 Comment
  UC1199422  Logfia filaginoides Joseph P. Tracy 1921-5-30 5489 Humboldt Kneeland Prairie 762 Comment
  UC180203  Logfia gallica Joeseph P. Tracy 1914-5-14 4467 Humboldt Fort Seward 121 Comment
  CAS-BOT-BC283402  Lolium multiflorum Malcom A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Salt marshes around Fields Landing Comment
  CAS-BOT-BC283407  Lolium multiflorum H. M. Hall 1924-8-9 s.n. Humboldt Van Duzen River Valley, near Carlotta Comment
  JEPS72927  Lolium multiflorum Lincoln Constance 1934-5-27 699 Humboldt gravel bar of South Fork Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC10302  Lolium perenne John Warner Hosking 1968-6-7 Humboldt HSC Campus, Arcata. Comment
  HSC10308  Lolium perenne Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC42239  Lolium perenne W. F. Nickel 1965-5-13 Humboldt On W side of College Elementary School on Humboldt State College Campus. Comment
  SEINET200586 Image available Lolium perenne J. P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  HSC32939  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1973-5-28 953 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC74497  Lomatium macrocarpum M. A. Baker 1980-7-24 3207 Humboldt Near Orleans Mtn. 1625 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  HSC58290  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12554 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC240468  Lonicera hispidula H. E. McMinn 1922-8-5 345 Humboldt Van Duzen River Comment
  UCD67636  Lonicera hispidula D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  HSC72627  Lonicera hispidula var. vacillans J. P. Smith, J. O. Sawyer 1977-7-1 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  UC177242  Lonicera hispidula var. vacillans Joseph P. Tracy 1912-7-4 3735 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC40297  Lonicera involucrata var. ledebourii Linda M. Barker 1976-4-30 1400 Humboldt 3 mi. W of Arcata Comment
  HSC89542  Lonicera involucrata var. ledebourii M. Roantree 1985-4-25 2 Humboldt E side of Trinidad Head. Comment
  HSC1873  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  UC162846  Lotus aboriginus J. P. Tracy 1905-9-3 2390 Humboldt immedite vicinity Eureka 0 Comment
  SDSU4292  Lotus corniculatus D. F. Howe 1959-8-4 2808 Humboldt Roadside near bridge over Eureka slough by Humboldt Bay. Comment
  UC1197309  Lotus crassifolius var. crassifolius Joseph P. Tracy 1911-7-7 3416 Humboldt between Willow Creek and Campbell Creek (vis ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  JEPS79926  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Cmap Northern Coast Ranges, South Fork Mountian 1676 Comment
  SEINET3560065 Image available Lotus subpinnatus Joseph P. Tracy 1906-7-4 2521 Humboldt Near Hydesville, Yager Creek 61 Comment
  POM232036  Lotus unifoliolatus I. L. Wiggins 1930-7-22 4689 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  RSA406270  Lotus unifoliolatus Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  POM276694  Lotus unifoliolatus Lyman Benson 1928-7-12 462 Humboldt Weott Ranger Station. 61 Comment
  UC1196932  Ludwigia palustris Joseph P. Tracy 1948-7-26 18076 Humboldt mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity R. Valley, Lack Pond 152 Comment
  RSA21198  Luina hypoleuca C. B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 miles above Orleans. Comment
  CAS-BOT-BC198267  Lupinus Wm. Bridge Cooke 1946-6-11 17369 Humboldt Roadside 1 mi. N of Eureka Comment
  UC146385 Image available Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt w slope S. Fork Mt.; ; S Fork Mt., Humboldt Co. Comment
  SEINET10488353  Lupinus affinis Charles Piper Smith 1948-5-10 Smith 48248 Humboldt Hwy 101. 0.2 Miles s of miranda Comment
  HSC75509  Lupinus albicaulis J. O. Sawyer, R. J. Cole 1977-7-3 30016 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1223276  Lupinus albicaulis var. shastensis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp 1402 Comment
  SEINET12154351  Lupinus albicaulis var. shastensis J. P. Tracy 1940-1 16687 Humboldt Wilder Range Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 Comment
  OBI36383  Lupinus arboreus David J. Keil 1983-7-1 17285 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  SD81280  Lupinus arboreus Darley F. Howe 1969-5-30 4586 Humboldt 2.4 miles south of Orick on Hwy 101, fresh-water lagoon Comment
  HSC47063  Lupinus bicolor J. P. Smith, Thomas W. Nelson 1977-6-30 9198 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC14800  Lupinus bicolor Eugene Andreuccetti 1964-4-26 20 Humboldt 1 mi. N of Garberville on Hwy. 101 Comment
  HSC71467  Lupinus bicolor J. P. Smith, J. O. Sawyer 1973-5-12 6680 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  SEINET6932627  Lupinus bicolor Wanda P. Vestal, A. G. Vestal 1937-6-19 s.n. Humboldt Terrace west of Eel River, 2 miles west of Gaberville. Comment
  RSA296803  Lupinus bicolor subsp. microphyllus Lincoln Constance 1934-5-26 664 Humboldt S. Ford of eel River, S. end of Dyerville Bridge. 46 Comment
  HSC59663  Lupinus latifolius George Kirn 1977-10-30 Humboldt Near rail bridge over Elk River 6 Comment
  RSA161252  Lupinus latifolius subsp. latifolius Peter H. Raven, R. Snow 1958-7-20 13645 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  UC176599  Lupinus latifolius var. latifolius Joseph P. Tracy 1913-6-20 4240 Humboldt lower foothills on its nw slope Buck Mountain; Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  HSC14852  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley 762 Comment
  BLMAR343  Lupinus nanus Jennifer Anthony-Wheeler 2003-5-15 343 Humboldt Eden valley, Irrigated meadow on private land 694 Comment
  UC302327  Lupinus nanus Joseph P. Tracy 1925-5-31 7053 Humboldt Bridgeville 228 Comment
  SEINET12154709  Lupinus rivularis J. P. Tracy 1934-1 13482 Humboldt Samoa Sand Dunes Comment
  HSC57899  Lupinus tracyi Overton, Butler 1979-7-31 11479 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC76513  Lupinus tracyi T. Jimerson 1981-8-5 901 Humboldt 1829 Comment
  RSA104397  Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt Corral Prairie, Trinity Summit Comment
  RSA165867  Lupinus variicolor Philip A. Munz 1963-6-19 24528 Humboldt Patrick's Point. 30 Comment
  CAS-BOT-BC436574  Luzula cascadensis Doris Kildale 1931-5-10 10690 Humboldt Snow Camp Comment
  HSC45642  Luzula comosa Diane L. Reed 1978-4-22 17 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC57382  Luzula comosa Overton, Butler 1979-7-26 10102 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC58111  Luzula comosa G. L. Clifton, Griswold 1979-8-1 12062 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC82212  Luzula comosa Thomas W. Nelson 1977-6-15 3439 Humboldt Along old road to ski area 1372 Comment
  HSC98641  Luzula comosa Cara Witte 2007-6-1 176 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  CHSC60627  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain. 1432 Comment
  UC1152126  Luzula parviflora Harold E. Parks and Joseph P. Tracy 1947-7-5 17811 Humboldt vicinity Box Camp (w side Trinity Summit); , vicinity Box Camp 1463 Comment
  UC302166  Luzula parviflora Joseph P. Tracy 1925-7-5 7171 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  UC577389  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  HSC35502  Lysichiton americanus J. Burns 1962-4-18 Humboldt Eureka, Togo Rd. Comment
  UC1222701  Lysichiton americanus Joseph P. Tracy 1950-7-6 18992 Humboldt lower end of Burr Valley Comment
  HSC89989  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  POM284991  Madia citriodora Lyman Benson 1929-7-12 1791 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC342798  Madia elegans Carl B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  RSA15579  Madia elegans subsp. elegans C. B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  CAS-BOT-BC344359  Madia exigua Doris K. Kildale 1927-6-25 3575 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  UC176444  Madia glomerata J. P. Tracy 1902-8-10 1769 Humboldt immediate vicinity Eureka 0 Comment
  HSC74087  Madia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1199397  Madia sativa J. P. Tracy 1903-8-9 1940 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC343594  Madia sativa Doris K. Kildale 1925-7-28 1093 Humboldt Riverside on the Van Duzen River near Strong's Station Comment
  HSC45076  Madia sativa R. Sutherland 1976-8-13 7 .13876 Humboldt 213 Comment
  RSA15574  Mahonia nervosa C. B. Wolf 1927-8-28 1179 Humboldt 13 mi. above Blue Lake on the Lord Ellis Road. Comment
  HSC99058  Mahonia pinnata subsp. pinnata Cara Witte 2008-7-2 802 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC45618  Maianthemum dilatatum Diane L. Reed 1978-4-29 37 Humboldt Trinidad Head Comment
  HSC95095  Maianthemum dilatatum Andrea Pickart 2002-6-30 132 Humboldt Lamphere Dunes Unit, Humboldt Bay Wildlife Refuge Comment
  RSA24336  Maianthemum dilatatum Carl B. Wolf 1941-2-25 9959 Humboldt South side of Freshwater Lagoon 61 Comment
  SEINET12043868  Maianthemum dilatatum H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  SEINET12044316  Maianthemum dilatatum H. E. Parks 1932-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC58003  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-7-31 11788 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC510675  Maianthemum racemosum subsp. amplexicaule L. B. Kildale 1930-8-3 10337 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC180179  Malus fusca Joseph P. Tracy 1914-5-3 4420 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC37571  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC7031  Marah oregana R. D. Zortman 1963-5-15 47 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC69639  Marah oregana R. Kalal 1980-5-19 20 Humboldt Arcata, Humboldt State University campus, Union St. near 14th St. 40 Comment
  UC303179  Medicago arabica Joseph P. Tracy 1925-5-31 7051 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  JEPS65511  Medicago polymorpha Lincoln Constance 1934-5-26 668 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek region (s end) Comment
  JEPS65525  Medicago sativa Lincoln Constance 1934-6-3 796 Humboldt Dyerville South Fork Eel River, Bull Creek region (foot of bank along n side of Redwood Hwy.) Comment
  CAS-BOT-BC269350  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  RSA10132  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC188817  Melica harfordii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 5210 Humboldt Russ Ranch Comment
  UC277171  Melica harfordii Joseph P. Tracy 1921-6-19 5833 Humboldt Berry's Mountain; Northern Coast Ranges 914 Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC262467  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt North Coast Ranges. Dobbyn Creek 152 Comment
  UC526922  Melica subulata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8913 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC77000  Melica subulata Joseph Burtt Davy 1899-6-10 5405 a Humboldt Hubbard's Station Comment
  UCD88639  Melica subulata A. H. Murphy 1950-1 s.n. Humboldt E. M. Cottrell Ranch. Comment
  HSC46021  Melilotus albus Catherine Chin 1978-8-5 92 Humboldt 7th & A St., Arcata Comment
  UC577380  Mentha aquatica Joseph P. Tracy 1927-10-8 8388 Humboldt Arcata Bottom 9 Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  UC577384  Mentha pulegium Joseph P. Tracy 1936-8-2 15078 Humboldt Orick 15 Comment
  RSA600662  Mentha pulegium Louis C. Wheeler 1950-8-14 6779 Humboldt Shelter Cove. 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
  CAS-BOT-BC348709  Microseris bigelovii Dr. A. Kellogg; W. G. W. Harford 1868-1-1 579 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  UC164797  Microseris bigelovii Joseph P. Tracy 1911-5-27 3190 Humboldt Humboldt Bay Northern Coast Region Comment
  HSC6023  Microseris douglasii J. P. Tracy 1929-5-5 8560 Humboldt Miranda; along S fork of Eel River 122 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
  CAS-BOT-BC322676  Microseris laciniata Alice Eastwood; John Thomas Howell 1937-6-22 4738 Humboldt Near Alder Point Comment
  SEINET178573  Microsteris gracilis Parks, Tracy 1930-5-25 0795 Humboldt Laribee Valley 792 Comment
  SEINET200378  Microsteris gracilis J. P. Tracy 1935-7-23 14146 Humboldt Trinity Summit at Corral Prairie 1585 Comment
  UC582607  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  POM257751  Mimulus aurantiacus var. aurantiacus C. L. Hitchcock, J. S. Martin 1939-7-14 5439 Humboldt Bluffs facing sea at Shelter cove Comment
  SFV15855  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-6 1116 Humboldt 0.8 miles south of Highway 101 interchange access road (to Trinity Town) along road to Luffenholtz Beach. East side of road on steep bank. 50 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  UC147910  Mimulus breweri Joseph P. Tracy 1908-6 2844 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  RSA12432  Mimulus breweri Carl B. Wolf 1934-7-2 5862 Humboldt Edge of small lake at Snow Camp. (Mts. east of Korbel) Upper transition or Canadian - Abies concolor 1372 Comment
  POM273295  Mimulus cardinalis Lyman Benson 1928-7-5 371 Humboldt 20 mi. South Garberville, North Coast mtn range, S. Fork Eel river 457 Comment
  UC418983  Mimulus dentatus H. E. Parks May 1930 Humboldt above Carlotta; Van Duzen River Comment
  HSC99435  Mimulus guttatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 84 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC20726  Mimulus guttatus H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  HSC89591  Mimulus guttatus M. Roantree 1985-5-15 45 Humboldt E side of Trinidad Head, on slope above Trinidad Bay beach Comment
  SEINET12269863  Mimulus guttatus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1011937  Mimulus guttatus F. W. Pennell and J. P. Tracy 1940-7-7 26087 Humboldt headwaters Willow Creek (Route 299) 762 Comment
  UC582477  Mimulus inodorus Joseph P. Tracy 1933-7-25 12852 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC85939  Mimulus kelloggii Susan Carter, Eric May, Sarah McNaull 1987-3-7 7 Humboldt 8 mi. SSE of Salyer on Co. Rd. 447, F.S. Rd. 5N03, trail 6E23; E of South Fork of Trinity River 457 Comment
  HSC55881  Mimulus moschatus G. L. Clifton, Griswold 1979-7-25 10946 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56105  Mimulus moschatus G. L. Clifton 1979-7-31 11839 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC56133  Mimulus moschatus G. L. Clifton, Griswold 1979-8-1 11951 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC75474  Mimulus moschatus J. O. Sawyer 1980-7-18 3621 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC103113  Mimulus nanus M. Mesler 2010-7-21 837 Humboldt South Fork Mtn, FS rd 4N12 1700 Comment
  UC1196834  Mimulus nasutus Joseph P. Tracy 1912-7-26 3828 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  HSC82387  Mimulus primuloides var. primuloides Thomas W. Nelson 1979-7-11 5011 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1103538  Minuartia californica Joseph P. Tracy 1922-5-29 6072 Humboldt South Yager Creek Northern Coast Ranges (head) 762 Comment
  UC183621  Minuartia californica Joseph P. Tracy 1913-5-4 4068 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC73077  Minuartia douglasii M. A. Baker 1980-5-18 1334 Humboldt Near Black Mtn. 792 Comment
  HSC74275  Minuartia douglasii M. A. Baker 1980-5-23 1383 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC388620  Minuartia douglasii Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. Trail 914 Comment
  UC1103535  Minuartia pusilla Joseph P. Tracy 1904-4-24 2030 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UC1198866  Mitella caulescens Joseph P. Tracy 1942-6-28 17268 Humboldt Murphy Meadows Bald Mountain (edges of bog) 975 Comment
  UC1198868  Mitella diversifolia Joseph P. Tracy 1937-7-2 15412 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  UC1198865  Mitella ovalis Joseph P. Tracy 1913-4-13 4039 Humboldt on a branch of slough about 3 mi e Eureka; Northern Coast Region, Region about Humbolst Bay, Ryan's Slo 0 Comment
  HSC50941  Moehringia macrophylla G. L. Clifton, Overton 1979-6-3 3764 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  UC668120  Moehringia macrophylla Joseph P. Tracy 1935-7-25 14225 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC48859  Moehringia macrophylla Brad Klipfel 1974-5-27 392 Humboldt Horse Mtn. area, Titlow Hill 1494 Comment
  HSC44557  Monardella odoratissima Brad Klipfel 1973-7-15 176 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99502  Monardella odoratissima subsp. pallida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 162 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
  CAS-BOT-BC220519  Monardella villosa Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  RSA0022787  Monardella villosa subsp. subserrata Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec (junction of Klamath and Trinity Rivers). 200 yards west of school. 152 Comment
  UC577342  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15428 Humboldt Vicinity Garberville 121 Comment
  RSA249710  Monotropa hypopitys R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35132 a Humboldt Wailaki Recreation Site. 610 Comment
  UC21672  Monotropa hypopitys J. Burtt Davy 1899-6-24 5773 Humboldt Hoopa Valley Comment
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  CAS-BOT-BC444804  Montia diffusa Harley P. Chandler 1901-5-1 1271 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  UC659346  Montia diffusa Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2615 Humboldt 1 mi below Dinsmore's (above Van Duzen River) 762 Comment
  UC162352  Montia fontana Joseph P. Tracy 1904-4-3 2004 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC198599  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC673004  Montia parvifolia Joseph P. Tracy 1935-7-24 14170 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC17670  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 mi. S of Bridgeville, along road to Blocksburg Comment
  HSC77395  Montia parvifolia L. P. Janeway 1983-5-21 301 Humboldt At East Fork USFS campground, W edge of flat canyon bottom 473 Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  HSC12368  Morella californica C. E. Fellows 1970-10-7 375 Humboldt McKinleyville 0.25 mi. SW of end of Murray Rd. Comment
  UCD86805  Muhlenbergia mexicana Joseph P. Tracy 1921-9-4 5957 Humboldt Trinity River Valley. Along Trinity River, at mouth of South Fork. 152 Comment
  UC1239640  Myosotis discolor Joseph P. Tracy 1917-6-17 4815 Humboldt around Humboldt Bay Valley of Salmon Creek; Northern Coast Ranges, Humboldt Bay, Valley of Salmon Creek 15 Comment
  HSC91604  Myosotis latifolia E. Mackey 1987-3-18 Humboldt Patrick's Point State Park Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  UC526764  Nassella pulchra Joseph P. Tracy 1926-5-2 7436 Humboldt grassy hillside near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC53978  Navarretia capillaris Griswold, Butler 1979-7-11 7052 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC1198607  Navarretia intertexta Joseph P. Tracy 1934-7-9 13345 Humboldt Dobbyn Creek 152 Comment
  HSC81494  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-8-12 6235 Humboldt Logging roads S of Lundbar Hills 61 Comment
  SEINET12279161  Navarretia pubescens J. P. Tracy 1950-1 18861 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  UC24188  Nemophila heterophylla Mary H. Manning 1900-1 Humboldt Hupa Comment
  HSC35029  Nemophila menziesii Thomas W. Nelson, James Nelson 1975-5-24 1845 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS1883  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-10 9928 Humboldt Bear River Ridge , Bear River Ridge (Northern Coast Ranges) 609 Comment
  UC146183  Nemophila menziesii var. atomaria Joseph P. Tracy 1908-6-9 2645 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS2987  Nemophila parviflora Lincoln Constance 1934-5-23 606 Humboldt se slope of mt. above Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, above Look Prairie 365 Comment
  CAS-BOT-BC219411  Nemophila parviflora Greg de Nevers 2001-4-17 12248 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  UC176123  Nemophila pedunculata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3605 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC57344  Noccaea fendleri subsp. glauca Walter Overton, Marvin Butler 1979-7-26 10027 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC34230  Notholithocarpus densiflorus var. densiflorus Linda M. Barker 1974-5-11 176 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC41314  Notholithocarpus densiflorus var. echinoides Brad Klipfel 1974-9-2 541 Humboldt Horse Mountain Comment
  HSC20658  Nuttallanthus texanus R. T. Forester 1963-4-30 18 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC22513  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  UC1198786  Oemleria cerasiformis Joseph P. Tracy 1926-2-28 7374 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges 182 Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  JEPS15792  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  CDA38488  Oenanthe sarmentosa Margaret Bellue 1932-9-28 s.n. Humboldt Arcata. 0 Comment
  HSC21579  Oenanthe sarmentosa Paul Shields 1955-6-16 Humboldt Humboldt State campus Comment
  CHSC70154  Oenothera glazioviana David K. Imper 1993-6-15 Humboldt Base of sand dunes, south end of Manila, west of Eureka. 6 Comment
  UC1196944  Oenothera wolfii Joseph P. Tracy 1927-7-24 8302 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  UC1199307  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1937-8-12 15632 Humboldt Snow Camp, in and around meadow Snow Camp 1402 Comment
  HSC16684  Orobanche californica subsp. californica Jerry Parker 1968-10-26 205 Humboldt Big Lagoon, dredged sand-spit opposite Sphagnum bog. Comment
  UC1245403  Orobanche fasciculata Joseph T. Gregory 1935-7-30 860 Humboldt Salmon Summit. Comment
  RSA80246  Orthocarpus erianthus var. gratiosus F. W. Peirson 1941-7-28 13107 Humboldt Along road to Patrick Point, State Park. Comment
  HSC102044  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 947 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  RSA407951  Orthocarpus purpurascens Francis W. Pennell, Joseph P. Tracy 1940-7-6 26085 Humboldt Table Bluff L.H., W of Lolita. Back of beach. 0 Comment
  HSC55862  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-7-25 10871 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC642235  Osmorhiza berteroi Joseph P. Tracy 1930-7-17 9018 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC906649  Osmorhiza occidentalis Joseph P. Tracy 1946-5-19 17351 Humboldt Kneeland Prairie 762 Comment
  JEPS14242  Osmorhiza occidentalis Joseph P. Tracy 1930-6-29 8810 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
  HSC16721  Oxalis articulata subsp. rubra N. R. Waite 1965-5-19 36 Humboldt W edge of Humboldt State University campus. Comment
  JEPS43130  Oxalis corniculata Joseph P. Tracy 1918-11-17 5119 Humboldt Elk River Corners Northern Coast Ranges, Eureka 0 Comment
  HSC75416  Oxalis oregana J. O. Sawyer, M. A. Erickson 1979-7-15 3415 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  JEPS109970  Oxalis trilliifolia D. W. Taylor 2004-6-24 19139 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles W of the junction with Forest Road 5N01. Comment
  UC535745  Panicum capillare Eleanor Armstrong 1147 Humboldt Richardson Grove Comment
  RSA246893  Parapholis incurva R. F. Thorne, P. Everett 1965-8-8 35274 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC82966  Parapholis strigosa A. L. Eicher 1985-6-19 Humboldt Mouth of Mad River Slough, Humboldt Bay. 1 Comment
  UC584130  Parentucellia viscosa David D. Keck and J. Clausen 1935-6-16 3395 Humboldt Mouth of Little River Comment
  HSC72425  Parentucellia viscosa J. P. Smith 1970-6-7 3812 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC90262  Parentucellia viscosa Jean Hanson 1980-5-24 75 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  UC667097  Parnassia californica Joseph P. Tracy 1934-8-29 13619 Humboldt South Fork Mountain at McKay Camp South Fork Mountain; , McKay Camp 1676 Comment
  UCSB25613  Parnassia palustris Tracy, Joseph 1934-8-29 Humboldt South Fork Mountain, McKay Camp 1676 Comment
  HSC99423  Paxistima myrsinites K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 72 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
  HSC45648  Pedicularis densiflora Diane L. Reed 1978-4-22 14 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  CAS-BOT-BC67769  Pellaea andromedifolia Doris K. Kildale 1926-4-30 1921 Humboldt Briceland Bridge, 1/2 mile west of Garbersville 114 Comment
  SEINET13262761  Pellaea densa Unknown 1912-7-26 3849 Humboldt KNEELAND PRAIRIE 762 Comment
  RSA43896  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC1222461  Penstemon heterophyllus Joseph P. Tracy 1936-6-17 14973 Humboldt at crossing of highway below Larrabee Valley (Little Van Duzen River); , below Larrabee Valley 713 Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  CDA41855  Penstemon laetus subsp. sagittatus Kaylea Eickhoff, Cara M. Witte 2005-6-15 14 Humboldt 14.1 miles south of Highway 299 on NF1, 0.25 mile northeast of Grouse Mountain. Comment
  UC774991  Penstemon parvulus Carl B. Wolf 1937-8-13 9220 Humboldt on new road towards Trinity Summit 8 mi e Hoopa Valley; North Coast Range 1219 Comment
  HSC99528  Penstemon procerus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 192 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  JEPS6895  Penstemon rattanii var. rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC330380  Petasites frigidus var. palmatus M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N of Garberville Comment
  CHSC116958  Petasites frigidus var. palmatus Matthew Forster 2013-4-7 Humboldt Along trail adjacent to Trinidad State Beach, Coastal Bluffs. 47 Comment
  UC1223042  Petasites frigidus var. palmatus Joseph P. Tracy 1947-2-23 17670 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  RSA34328  Petasites palmatus J. Wendell Howe 1932-3-20 s.n. Humboldt Roadside near Orick. Comment
Read comments
Nov 24 2011
  SEINET12335255  Phacelia bolanderi F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -304 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 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
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  CHSC110702  Phacelia corymbosa Dean Wm. Taylor 2004-6-24 19129 Humboldt North Coast Ranges. Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  RSA21078  Phacelia mutabilis Carl B. Wolf 1937-8-13 9238 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC258866  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt Around Humboldt Bay. Along highway across Salmon Creek flats 6 Comment
  RSA167286  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road, about 2 miles east of junction of Kneeland Prairie Road Comment
  CAS-BOT-BC76568  Philadelphus lewisii Doris K. Kildale 1926-6-27 2203 Humboldt On road to Larabee Valley from McLellan Mt. 792 Comment
  HSC98094  Philadelphus lewisii Cara Witte 2007-7-11 484 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  UC1035063  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt summit of US Hwy 299 betw. Willow Creek and Blue Lake Comment
  UC154152  Philadelphus lewisii Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  UC420417  Philadelphus lewisii P. E. Goddard 1907-6-10 #b. 119 Humboldt Van Duzen Comment
  UCD89321  Phleum alpinum A. H. Murphy 1951-6-25 66 Humboldt Snow Camp Meadow, 8 miles e.n.e. Kneeland. 1402 Comment
  HSC100894  Phlox adsurgens Carl C. Marshall Jun 1886 324 Humboldt Trail E of Hoopa. Comment
  HSC17160  Phlox diffusa D. E. Anderson 1965-6-1 3760 Humboldt Horse Mtn.; N-facing slope near ski lodge 1433 Comment
  SEINET10496960  Phlox diffusa subsp. diffusa Botany 1985-5-10 BOTANY s.n. Humboldt T6n,r4e,sec.28,h.m.; Horse mountain road, ca 8 miles s of hwy 299, on open Slope with ceanothus ssp and quercus ssp. Flowers pale blue 1143 Comment
  HSC36216  Phoradendron serotinum subsp. tomentosum John Rehling 1975-11-8 109 Humboldt Near Berry Summit, just off Hwy. 299 Comment
  JEPS386  Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad Comment
  HSC18715  Physocarpus capitatus Paul Shields Jul 1955 Humboldt 1/2 mi. N of Weott Comment
  CAS-BOT-BC73288  Pinus contorta W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC31517  Pinus contorta Steve Selva, Roger Jensen 1974-8-28 92 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  NY49716  Pinus contorta var. contorta R. E. Anderson 1987-3-28 172 Humboldt Patrick's Point State Park, on west Rim Trail 30 Comment
  CAS-BOT-BC73200  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC1510  Pinus lambertiana Francis Winter 1960-5-7 Humboldt Sugar Pine Mtn. 6 mi. W of Hoopa Indian Reservation 1067 Comment
  CAS-BOT-BC136469  Piperia candida L. R. Abrams 1916-7-11 5986 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1488745  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt ca 2 mi n Manila (between sand dunes and Mad River Slough) Comment
  HSC99421  Plagiobothrys hispidulus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 70 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
  JEPS61027  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC23128  Plagiobothrys nothofulvus Norman Dennis 1965-6-11 114 Humboldt 1/4 mi. S and 1 mi. E of the junction of Barry Ridge Rd. and the Eureka-Bridgeville county road, along Ashfield Ridge Rd. About 5 mi. SE of Kneeland 793 Comment
  POM126348  Plagiobothrys reticulatus 1909-6-13 22989 .75 Humboldt Blue Lake 30 Comment
  UC180174 Image available Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-14 4469 Humboldt Fort Seward Northern Coast Ranges; Fort Seward, Humboldt Co. 121 Comment
  UC1222197  Plagiobothrys scouleri Joseph P. Tracy 1948-5-31 18021 Humboldt at the former William Perry place Dobbyn Dreek Comment
  UC1222200  Plagiobothrys scouleri Joseph P. Tracy 1949-8-11 18452 Humboldt e of Korbel (at Hungry Hollow); Bald Mountain 762 Comment
  UC1222205  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17549 Humboldt 5 mi e Carlotta (Riverside Park on Van Duzen River); Van Duzen River 30 Comment
  UC1222208  Plagiobothrys scouleri Joseph P. Tracy 1948-6-13 18032 Humboldt between Bridgeville and Blocksburg (on Larrabee Creek road) Comment
  HSC37922  Plantago erecta Peter Sorenson 1976-6-14 Humboldt N Spit Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC1225811  Plantago lanceolata Joseph P. Tracy 1947-8-10 17882 Humboldt Eureka 30 Comment
  RSA246721  Plantago major Robert F. Thorne, Percy C. Everett 1965-8-8 35233 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  JEPS7158  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  SEINET8364946  Plantago subnuda Unknown 1954-8-10 4760 Humboldt roadside ditch along U.S. Highway 101, 0.4 mile south of south boundary marker for Dry Lagoon Beach. Comment
  HSC54540  Platanthera sparsiflora Overton, Butler 1979-7-23 9523 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC99365  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 14 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC275576  Platanthera sparsiflora Joseph P. Tracy 1923-6-24 6369 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS49012  Platanthera sparsiflora Hilda W. Grinnell 1932-7-19 28 Humboldt boggy meadows near Camp McKay; So. Fork Mt. Comment
  UC146079  Platystemon californicus Joseph P. Tracy 1904-4-24 2034 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  CAS-BOT-BC91644  Platystemon californicus Kenneth Clark 1981-5-24 1390 Humboldt Sherlter Cove. Abalone Point. 15 Comment
  SEINET516269  Platystemon californicus Vernon H. Oswald 1998-4-16 8915 Humboldt North Spit of Humbldt Bay, west side of New Navy Base Rd. 1.7 mi S of Hwy. 255. Comment
  UC1540409  Platystemon californicus Gary L. Hannan 1976-5-25 166 Humboldt New Bavy Base Road, 6.6 km S of bridge to Eureka Comment
  SEINET780341  Plectritis M. A. Baker 1980-3-7 1151 Humboldt confluence of Pine and Burndt Ranch Creeks Comment
  JEPS4813  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 1/2 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  UC1239606  Plectritis congesta Joseph P. Tracy 1923-5-20 6216 Humboldt Kneeland Prairie 762 Comment
  UC176121  Plectritis congesta Joseph P. Tracy 1912-6-9 3652 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC92237  Plectritis congesta subsp. brachystemon John Cromwell, Julie Schneider, A. Thoele 1994-3-19 6 Humboldt Hell's Half Acre, trailhead located 12 mi. S on S Fork Rd. off Hwy. 299 457 Comment
  RSA183537  Pleuropogon refractus H. S. Logsdon 1964-5-10 12 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  UC184171  Pleuropogon refractus Joseph P. Tracy 1901-6-10 1131 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1103796  Poa annua Joseph P. Tracy 1921-4-24 5432 Humboldt S Fork of Eel River Phillipsville Flat; Northern Coast Ranges 91 Comment
  UC525626  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt head of Brett Hole Trinity Summit; Klamath Mts 1828 Comment
  HSC10687  Poa confinis T. O. Preston 1963-5-6 22 Humboldt Sand dunes. Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UCD91136  Poa howellii A. H. Murphy 1951-2-27 3 Humboldt along the Eel River, near Fort Seward Hotel. Comment
  RSA183517  Poa kelloggii H. S. Logsdon 1964-5-10 7 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 3 Comment
  HSC26627  Poa pratensis J. P. Smith, Steve Selva 1970-6-30 4104 Humboldt Comment
  HSC102232  Poa pratensis subsp. pratensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1153 Humboldt Patterson Meadows 1566 Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC184914  Poa secunda subsp. secunda Joseph P. Tracy 1912-7-31 3952 Humboldt near summit Buck Mt; Northern Coast Ranges 1676 Comment
  UC525662  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts 1828 Comment
  UC525668  Poa secunda subsp. secunda Joseph P. Tracy 1926-5-9 7469 Humboldt valley s of Yager Creek 762 Comment
  CAS-BOT-BC244206  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  HSC17226  Polygala californica Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC35937  Polygala californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2030 Humboldt French Camp, Bald Hills. Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  HSC98083  Polygala cornuta var. cornuta Cara Witte 2007-7-10 475 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  UC672946  Polygonum amphibium Joseph P. Tracy 1934-7-20 13467 Humboldt Big Lagoon; edge of tule swamp 3 Comment
  UC1198074  Polygonum bistortoides Joseph P. Tracy 1919-9-18 5242 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC672974  Polygonum bistortoides Joseph P. Tracy 1930-7-16 8924 Humboldt McKay Camp South Fork Mountain 1676 Comment
  UC30051  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC55506  Polygonum davisiae Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5806 Humboldt Trinity Summit North Coast Ranges Comment
  UC146190  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1908-7-1 2888 Humboldt ridge between Van Duzen River and Mad River (near Low Gap, Humboldt and Trinity Cos.); Northern Coast Ranges 609 Comment
  UC177188  Polygonum lapathifolium Joseph P. Tracy 1912-10-20 3988 Humboldt in field by Loleta Pond; Northern Coast Ranges, lower Eel River Valley 15 Comment
  UC1198089  Polygonum parryi Joseph P. Tracy 1929-8-18 8658 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  UC672979  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain; around old cabin 1524 Comment
  HSC55057  Polygonum polygaloides subsp. kelloggii G. L. Clifton, Griswold 1979-7-31 11690 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1222469  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1935-7-14 14082 Humboldt Grouse Mountain 1524 Comment
  HSC54663  Polygonum spergulariiforme Overton, Butler 1979-7-25 9905 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  SEINET192538 Image available Polypodium glycyrrhiza George Neville Jones 1936-3-22 Humboldt along the south fork of the Eel R. near Garberville Comment
  UC1189555  Polypodium glycyrrhiza Rolla M. and Alice F. Tryon 1961-11-22 5560 Humboldt nw of Weott; s fork Eel River Comment
  CAS-BOT-BC72084  Polypodium scouleri W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  SEINET3111376  Polypodium scouleri Unknown 1969-3-30 Humboldt Humboldt State University; Ecol Project site. Comment
  CAS-BOT-BC233073  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka 60 Comment
  LA10109  Polypogon interruptus H. S. Yates; 1936-6-16 5678 Humboldt 1 mi. NE of Samoa 3 Comment
  SEINET10602409  Polypogon interruptus Joseph P. Tracy 1912-6-27 Tracy 3709 Humboldt At Eureka. 0 Comment
  CAS-BOT-BC233213  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  UC50607  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5549 Humboldt near Scotia; near Scotia Comment
  CAS-BOT-BC76763  Polystichum imbricans subsp. imbricans L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC98592  Polystichum imbricans subsp. imbricans Cara Witte 2008-6-11 707 Humboldt National Forest Road 5N10. 2 miles east of waterhole / Forest Service Road 5N10D. 1315 Comment
  CHSC31316  Polystichum munitum Mark Stopher 1980-6-4 86 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  RSA1504  Polystichum munitum E. R. Johnson 1929-08 1409 Humboldt Arcata Redwood Park 76 Comment
  HSC77920  Polystichum munitum L. P. Janeway, Paul Wilson 1984-5-25 817 Humboldt On N Spit of Humboldt Bay on BLM lands near the Coast Guard Station 5 Comment
  HSC91600  Polystichum munitum E. Mackey 1986-10-2 Humboldt Patrick's Point State Park by trail to Agate Beach Comment
  HSC98643  Polystichum munitum Cara Witte 2008-7-10 864 Humboldt Forest Service Road 4N06. 2 miles west of National Forest 1. 1195 Comment
  UC215463  Populus trichocarpa Huron H. Smith 1911-7-7 3938 Humboldt Bull Creek Comment
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  CAS-BOT-BC453765  Potamogeton natans L. R. Abrams 1916-7-18 6094 Humboldt Arcata to Trinidad Comment
  HSC59499  Potamogeton natans M. A. Ericksen 1979-4-20 209 Humboldt Northernmost Clam Beach ponds, .3 mi. S of Cranell Rd. and Little River Dr., 16 mi. N of Eureka Comment
  JEPS393  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC454064  Potamogeton pusillus subsp. pusillus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  POM366485  Potentilla anserina var. grandis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Marine Sand dunes. Comment
  HSC98969  Potentilla glandulosa subsp. reflexa Cara Witte 2007-6-27 364 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC75470  Potentilla gracilis var. fastigiata J. O. Sawyer 1980-7-18 3617 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  NY436379  Potentilla laxiflora V. K. Chesnut 1888-7-23 s.n. Humboldt Hy-Am-Pum. Comment
  UCD139803  Prosartes hookeri Gordon Leppig 1998-6-6 845 Humboldt Arcata, Arcata Community Forest, in frisbee gold area. 91 Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  SEINET12050388  Prosartes smithii F. H. Utech 1988-1 88 -021 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along Avenue of the Giantes (alt US 101) to Miranda 85 Comment
  HSC44534  Prunella vulgaris subsp. lanceolata Brad Klipfel 1973-7-1 142 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS62490  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-14 13403 Humboldt along Mad River near Blue Lake; along Mad River near Blue Lake 15 Comment
  UC673114  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  UC1402064  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 628 -30 Humboldt Comment
  UC1225839  Prunella vulgaris var. vulgaris Joseph P. Tracy 1942-10-18 17404 Humboldt Jacoby Creek near the quarry Jacoby Creek 152 Comment
  HSC48828  Prunus emarginata Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 42 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC12753  Prunus emarginata Harley P. Chandler June, 1901 1273 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1066 Comment
  CAS-BOT-BC154738  Prunus virginiana var. demissa Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CAS-BOT-BC154785  Prunus virginiana var. demissa Mrs. R. M. Austin 1894-6-1 s.n. Humboldt Willow Creek Valley Comment
  UC1198780  Prunus virginiana var. demissa Joseph P. Tracy 1926-10-14 7814 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC357269  Pseudognaphalium microcephalum Joseph P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS20479  Pseudognaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC67443  Pseudognaphalium stramineum J. P. Smith 1971-10-6 4936 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1173655  Pseudognaphalium thermale Joseph P. Tracy 1939-8-16 16424 Humboldt Friday Ridge Grouse Mountain, Friday Ridge (brushy slopes) 1219 Comment
  HSC99550  Pseudotsuga menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 215 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS48283  Pseudotsuga menziesii Joseph P. Tracy 1932-3-20 9782 Humboldt Trinidad North Coast Region 60 Comment
  UCR246635  Pseudotsuga menziesii Dean Kelch, D. A. Weinstein 2007-7-25 07- 510 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC54224  Pseudotsuga menziesii var. menziesii Griswold, Butler 1979-7-12 7287 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC54576  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9612 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  JEPS48426  Pseudotsuga menziesii var. menziesii W. L. Jepson 1936-8-7 17858 Humboldt Butte Creek (upper) Bear Buttes, Butte Creek Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  CAS-BOT-BC361929  Psilocarphus tenellus L. R. Abrams 1918-6-13 7094 Humboldt Fortuna Comment
  UC1199361  Psilocarphus tenellus Joseph P. Tracy 1915-6-27 4661 Humboldt near Carlotta; Northern Coast Ranges, Yager Creek 60 Comment
  HSC55030  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-31 11466 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  JEPS60088  Pteridium aquilinum var. pubescens Lincoln Constance 1934-6-13 876 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  UC642278  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity Rivery Valley, at Willow Creek 152 Comment
  JEPS19284  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CHSC104064  Pyracantha angustifolia Peter F. Zika 2009-6-15 24493 Humboldt North Coast Ranges. Route 299, 0.2 km W of Davis Street, near town of Blue Lake. 80 Comment
  CAS-BOT-BC460597  Pyrola aphylla Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  CAS-BOT-BC460602  Pyrola aphylla Doris Kildale 1931-5-24 10846 Humboldt Little Laribee, Laribee Valley Comment
  HSC69767  Pyrola aphylla Thomas W. Nelson, Jane Nelson 1977-9-3 3715 Humboldt J.E. Losey property above junction of Kneeland-Maple Creek Rd. 671 Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  UC1197571  Pyrola asarifolia Edith Tracy 1898-7-1 248 Humboldt on Kneeland Prairie Road about 10 miles Esta of Eureka 457 Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  HSC76592  Pyrola crypta Denis Kearns 1981-7-24 449 Humboldt Near Whiteys Peak. 1768 Comment
  HSC44342  Pyrola dentata Brad Klipfel 1975-6-17 687 Humboldt Horse Mtn. Comment
  UC162733  Pyrola picta Joseph P. Tracy 1911-7-7 3437 Humboldt Brannan Mountain, viz. Ridge North of Willow Creek, between Willow and Campbell Creeks near the Summit 1219 Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  UC21699  Pyrola picta J. Burtt Davy Jun 1899 5876 B Humboldt North Coast Ranges, Hoopa Mountains Hoopa Mountains; North Coast Ranges, Hoopa Mountains Comment
  HSC54661  Quercus chrysolepis Overton, Butler 1979-7-25 9887 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC98830  Quercus chrysolepis Cara Witte 2008-7-10 866 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  HSC99029  Quercus chrysolepis Cara Witte 2008-7-14 891 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  UC275588  Quercus chrysolepis Joseph P. Tracy 1924-8-31 6845 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  CAS-BOT-BC105165  Quercus kelloggii Doris K. Kildale 1928-3-31 4384 Humboldt 3 miles N of Gaberville on Redwood Highway Comment
  HSC99009  Quercus kelloggii Cara Witte 2008-7-1 785 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  JEPS38041  Quercus kelloggii Lincoln Constance 1934-5-29 738 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  CAS-BOT-BC539322  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 22 mi from Garberville along Alderpoint Rd; stop #2 116 Comment
  UC180641  Quercus wislizeni Joseph P. Tracy 1914-5-14 4458 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  SEINET200362  Ranunculus J. P. Tracy 1921-7-31 5861 Humboldt Fortuna 30 Comment
  UC1196264  Ranunculus J. P. Tracy 1902-8-10 1766 Humboldt R. R. Station Immediate vicinity of Eureka 0 Comment
  UCD19481  Ranunculus John M. Tucker 1948-9-4 1864 Humboldt Ferndale, Humboldt County Fair Grounds. Comment
  HSC75446  Ranunculus alismifolius var. hartwegii J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET13716691  Ranunculus aquatilis Unknown 1913-6-13 4276 Humboldt In a shallow but permanent pond. Near summit of ridge between Van Duzen and Mad Rivers, on Dinsmore's Ranch. Comment
  HSC37650  Ranunculus aquatilis var. aquatilis Robert M. Specht, John Rehling 1976-4-25 404 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  UC184716  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1913-6-23 4276 Humboldt near summit of ridge between Van Duzen River and Mad River (in shallow but permanent pond); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  POM118706  Ranunculus californicus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  HSC26638  Ranunculus lobbii Thomas W. Nelson 1971-5-31 447 Humboldt Vernal pond Comment
  UC162870  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1908-6-7 2614 Humboldt Butler Valley Northern Coast Ranges, Mad River 152 Comment
  UCD97062  Ranunculus orthorhynchus var. platyphyllus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC18217  Ranunculus parviflorus D. E. Anderson 1963-5-25 2472 Humboldt 5 mi. S of Ferndale on Wildcat Rd. Comment
  UC1103009  Ranunculus pusillus Joseph P. Tracy 1948-6-13 18035 Humboldt halfway between Bridgeville and Blocksburg (pond on creek); Larrabee Creek 457 Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC100902  Ranunculus repens Carl C. Marshall 167 Humboldt No data. Comment
  UCD18404  Ranunculus testiculatus Jack Major 1982-4-18 s.n. Humboldt 13 miles east of Winnemucca on I-80, north lane. Comment
  HSC55295  Ranunculus uncinatus Griswold, Butler 1979-7-10 6337 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC162816  Ranunculus uncinatus J. P. Tracy 1910-5-8 3133 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC59688  Raphanus sativus George Kirn 1977-9-10 Humboldt Eureka, G and 1st St. 8 Comment
  RSA34322  Rhamnus californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat Comment
  UC61090  Rhamnus californica subsp. californica Mrs. M. H. Manning oct 1901 Humboldt near Hupa Comment
  JEPS41951  Rhamnus californica subsp. occidentalis W. L. Jepson 1902-7-2 1977 Humboldt Three Creek to Willow Creek 762 Comment
  RSA19036  Rhamnus californica subsp. occidentalis J. T. Howell 1937-7-31 13717 Humboldt 5 miles E of Berry Summit Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  UCR3519  Rhamnus purshiana David Whistler, H. M. Whistler 1964-8-1 640801- 4 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  RSA355693  Rhamnus purshiana Walter Wisura, Dave Kelly 1986-7-30 4134 Humboldt N of Crannel, on Lousiana Pacific Lumber Co. property, ca. 6 mi beyond the gate, beyond the nursery area, at edges of opening in Redwood forest. Comment
  HSC7835  Rhododendron columbianum J. F. Knezevich 1967-5-23 452 Humboldt N of Trinidad at Big Lagoon 15 Comment
  CAS-BOT-BC56608  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt in the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  SBBG5560  Rhododendron occidentale H. and M. Dearing 1933-5-17 1244 Humboldt N of Big Lagoon Comment
  CAS-BOT-BC433132  Ribes Doris K. Kildale 1927-4-17 3076 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC92520  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt Klamath Mountains. Trinity Summit. Near Corral Prairie. 1524 Comment
  HSC103230  Ribes binominatum Jade Paget-Seekins 2010-6-23 27 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC40677  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2847 Humboldt Along Rd. to Goat Hill. 1646 Comment
  RSA183639  Ribes bracteosum D. E. Anderson 1965-5-8 3632 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  UC303170  Ribes bracteosum Joseph P. Tracy 1923-8-19 6535 Humboldt at crossing Kneeland Road (Lawrence Creek); Northern Coast Ranges 609 Comment
  UC1225766  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  CAS-BOT-BC168853  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC23682  Ribes lacustre J. O. Sawyer 1971-6-14 2381 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 Comment
  UC1198927  Ribes lobbii Joseph P. Tracy 1913-7-20 4385 Humboldt near summit of ridge between Three Creeks and Redwood Creek (Three Creeks side); Northern Coast Ranges 1066 Comment
  CAS-BOT-BC206045  Ribes menziesii L. R. Abrams 1916-7-11 6033 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  SJSU7838  Ribes menziesii R. D. Spadoni 1965-3-26 108 Humboldt Trinidad Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  UCD102483  Ribes roezlii var. cruentum Roman Gankin; W. R. Hildreth 1966-3-15 697 Humboldt State Highway 96, 2 miles north of Weitchpec. Comment
  CAS-BOT-BC198937  Ribes roezlii var. roezlii Joseph P. Tracy 1937-3-27 15240 Humboldt Near Blue Lake, along Mad River 15 Comment
  CAS-BOT-BC211978  Ribes sanguineum Joseph P. Tracy 1948-8-15 18133 Humboldt On ridge 2 miles east of Grove's Prairie, Trinity Summit 1554 Comment
  HSC22511  Ribes sanguineum D. E. Anderson 1964-4-24 3540 Humboldt 0.5 mi. from junction of Hwy. 299 along Titlow Hill Rd. Comment
  UC1541332 Image available Ribes sanguineum Harold E. Parks 1930-5-25 868 Humboldt Laribee Valley 762 Comment
  UCD102487  Ribes sanguineum G. F. Hrusa 1992-5-5 10436 Humboldt Cedar Camp Rd. approximately 10 m. west of Orleans. Mile 9.0. Comment
  UCD13168  Ribes sanguineum N. L. Leman 1973-5-19 148 Humboldt Humboldt CO. State Highway 299, 14 miles west of Willow Creek. On roadside about .7 miles before Titlow Hill Rd. turnoff. Comment
  CAS-BOT-BC144676  Ribes sanguineum var. glutinosum Kenneth Clark 1980-3-1 520 Humboldt lower and middle terraces of Dead Man's Gulch 36 Comment
  CAS-BOT-BC144693  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg 518 Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  UCR179227  Ribes sanguineum var. glutinosum R. G. Swinney 1968-3-28 233 Humboldt East of Humboldt State College, Arcata 152 Comment
  SEINET2153800  Ribes sanguineum var. sanguineum K. T. Harper 2002-1 2002 -4 Humboldt Redwood Park, near Orick. Comment
  CAS-BOT-BC173993  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt Ridges East of Corral Prairie 1828 Comment
  HSC74207  Ribes viscosissimum M. A. Baker 1980-7-19 3026 Humboldt Near Bret Hole. 1814 Comment
  HSC47612  Rigiopappus leptocladus J. P. Smith 1977-4-23 9027 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC63085  Romanzoffia californica David Wheeler 1979-4-25 85 Humboldt Kneeland Ridge, 5 mi. past the Kneeland Post Office on the way to the airport 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
  UC1103817  Romanzoffia tracyi Joseph P. Tracy 1940-5-18 16563 Humboldt 2 mi. n. Trinidad (coast bluff opposite Park's place) 3 Comment
  UC1552858  Romulea rosea var. australis Thomas W. Nelson and Jane P. Nelson 1987-4-11 8421 Humboldt Capetown North Coast Ranges (beside county road that follows Bear River, ca 100 ft from junction with State Hwy 1) 7 Comment
  HSC58404  Rorippa curvisiliqua Terry Griswold, Marvin Butler 1979-7-11 7048 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC74508  Rorippa curvisiliqua Malcom A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt On southern side of the town of Blue Lake. Comment
  CHSC19514  Rorippa nasturtium-aquaticum J. F. Knezevich 1968-5-14 433 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. -15 Comment
  HSC19615  Rosa californica Lincoln Constance 1934-5-26 654 Humboldt South Fork Eel River, S end of Dyerville Bridge. Comment
  HSC19645  Rosa canina Francis Winter 1960-4-24 Humboldt 1 mi. S of Hoopa Indian Reservation along Hoopa-Willow Creek Hwy. 152 Comment
  RSA34302  Rosa eglanteria Doris K. Kildale 1925-11 1343 Humboldt Big Lagoon Comment
  CAS-BOT-BC146491  Rosa gymnocarpa Doris K. Kildale; L. B. Kildale 1930-5-24 9550 Humboldt Hoopa Valley 152 Comment
  UC527562  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 mi above Blue Lake (on Lord Ellis Rd to Willow Creek) 304 Comment
  HSC98839  Rosa gymnocarpa var. gymnocarpa Cara Witte 2008-6-27 767 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  CAS-BOT-BC146826  Rosa nutkana Doris K. Kildale 1927-6-28 3606 Humboldt Mad River near covered bridge on Redwood Highway Comment
  UC12845  Rosa nutkana subsp. macdougalii J. Burtt Davy 1899-6-13 5492 Humboldt along river near Camp Grant; Eel River Comment
  UC303026  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  UC667045  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14886 Humboldt Bear River Ridge 609 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-BC148385  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  RSA46847  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat. Comment
  HSC69534  Rubus parviflorus R. Kalal 1979-5-20 74 Humboldt Logging Rd. E of HSU Campus, Arcata 46 Comment
  UC154208  Rubus parviflorus J. P. Tracy 1900-5-22 799 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC666862  Rubus parviflorus Joseph P. Tracy 1933-6-7 12524 Humboldt Bridgeville 198 Comment
  SEINET8254189  Rubus parviflorus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka. Comment
  CAS-BOT-BC156725  Rubus spectabilis Doris K. Kildale 1927-4-10 3081 Humboldt Prairie Creek, between Orick & Requa Comment
  CHSC59811  Rubus spectabilis Jordan Detzer 1977-4-8 6 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
  HSC19697  Rubus ursinus John A. Dubois 1962-5-23 21 Humboldt 20 mi. E of Arcata. Comment
  HSC55314  Rubus ursinus Griswold, Butler 1979-7-11 7024 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC37937  Rumex acetosella Peter Sorensen 1976-5-28 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC44539  Rumex acetosella Brad Klipfel 1973-7-15 155 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC59582  Rumex acetosella Rick Lundquist 1979-4-24 34 Humboldt SE corner 7th and Union St., Arcata 24 Comment
  CAS-BOT-BC421748  Rumex conglomeratus Malcom A. Nobs; S. Galen Smith 1949-8-9 1236 Humboldt On southern side of the town of Blue Lake Comment
  CAS-BOT-BC421523  Rumex crassus C. L. Hitchcock; J. S. Martin 1939-7-14 5438 Humboldt At Shelter Cove Comment
  UCD100941  Rumex fueginus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon. Humboldt Coast. Comment
  HSC17616  Rumex obtusifolius Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek Rd. Comment
  UC153979  Rumex occidentalis Joseph P. Tracy 1910-6-5 3148 Humboldt near Samoa; Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC433704  Rumex occidentalis Doris Kildale Gillespie 1931-6-7 10651 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC176683  Rumex pulcher Joseph P. Tracy 1912-6-9 3645 Humboldt Alton Northern Coast Region 30 Comment
  HSC44841  Rupertia physodes Thomas W. Nelson, Jane P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill 1524 Comment
  CAS-BOT-BC454156  Ruppia maritima Malcom A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  POM151674  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  SEINET10965499  Salicornia Mary Susan Taylor 1990-8-22 Taylor 6087 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  HSC93476  Salicornia depressa Gordon Leppig 1998-8-6 995 Humboldt Arcata Marsh and Wildlife Sanctuary; Humboldt Bay side of Klopp Lake dike 2 Comment
  UC1196671  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14268 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 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
  HSC19945  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1330 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  UC469442  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-19 9673 Humboldt Van Duzen R. Alton; Northern Coast Region 30 Comment
  UC526711  Salix exigua var. hindsiana H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC104108  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01331 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107734  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  CAS-BOT-BC107739  Salix hookeriana Joseph P. Tracy 1925-10-11 7280 Humboldt Near Loren Frost place on Kneeland Road - Kneeland Prairie 609 Comment
  HSC20066  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1231 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  HSC20071  Salix hookeriana J. P. Tracy, H. E. Parks 1931-3-26 904 Humboldt Lower Van Duzen River near Alton Comment
  HSC40861  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC40863  Salix hookeriana Linda M. Barker 1976-4-30 1416 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS12914  Salix hookeriana H. E. Parks and Joseph P. Tracy 1927-4-23 7921 Humboldt Big Lagoon; Northern Coast Ranges 6 Comment
  JEPS12959  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  JEPS14758  Salix hookeriana Joseph P. Tracy 1926-1-10 7345 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  POM362590  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon. 0 Comment
  SBBG59111  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  UC1173624  Salix hookeriana Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp 1402 Comment
  UC1196679  Salix hookeriana Joseph P. Tracy 1925-2-1 6929 Humboldt slope of bluff near Salmon Creek Corners; Northern Coast Region, around Humboldt Bay, Table Bluff 60 Comment
  UC275499  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Road); Northern Coast Ranges 609 Comment
  UC469116  Salix hookeriana Joseph P. Tracy 1927-3-13 7844 Humboldt mouth of Little River; Northern Coast Ranges, Little R. 6 Comment
  UC492343  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC511999  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1238 Humboldt floodplain of Van Duzen R. at Blue Slide 91 Comment
  UC512106  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1207 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UCD111041  Salix hookeriana Linda M. Barker 1976-4-30 1422 Humboldt 3 miles west of Arcata. Comment
  JEPS12976  Salix laevigata Joseph P. Tracy 1932-4-23 9834 Humboldt 4 mi s Dyerville (S. Fork Eel River); Northern Coast Ranges 60 Comment
  JEPS14756  Salix laevigata Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  UC481814  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 270 Humboldt between Miranda and Meyers (Sylvandale); S. Fork Eel R., Sylvandale Comment
  UC1196577  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-3-31 995 Humboldt immediate vicinity Eureka 0 Comment
  JEPS13068  Salix lasiandra var. lasiandra Joseph P. Tracy 1921-3-27 5427 Humboldt Korbel; Northern Coast Ranges 30 Comment
  CAS-BOT-BC107102  Salix lasiolepis Joseph P. Tracy 1933-2-26 10912 Humboldt Miranda, along south fork of Eel River 121 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC20008  Salix lasiolepis J. P. Tracy 1933-4-2 10961 Humboldt Berry's Mt. on Trinity Hwy. E of Redwood Creek 762 Comment
  HSC99836  Salix lasiolepis Jimerson, J. Pageau 1979-6-22 601 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  JEPS13836  Salix lasiolepis Joseph P. Tracy 1926-8-12 7760 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  LA208776  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt Van Duzen River, 2 mi. W of Bridgeville 228 Comment
  UC1196656  Salix lasiolepis Joseph P. Tracy 1920-8-15 5387 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC212997  Salix lasiolepis Joseph P. Tracy 1919-9-27 5302 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UC275494  Salix lasiolepis Joseph P. Tracy 1925-6-28 7154 Humboldt Redwood Creek, at Berry's Comment
  UC469418  Salix lasiolepis Joseph P. Tracy 1927-8-7 8306 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490547  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506375  Salix lasiolepis Joseph P. Tracy 1933-4-9 10963 Humboldt Bridgeville 228 Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  UC511994  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1239 Humboldt Blue Slide Van Duzen River 91 Comment
  UCD111589  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01333 Humboldt Trinity River, near bridge on Trinity Highway. 152 Comment
  POM362660  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  JEPS12970  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SD920  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville, river bed 299 Comment
  SD975  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River, sandbars 149 Comment
  UC1196573  Salix melanopsis Joseph P. Tracy 1931-10-3 9703 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1196650  Salix melanopsis Joseph P. Tracy 1932-10-12 10878 Humboldt along S Fork Eel R. Miranda; Northern Coast Ranges, S Fork Eel R. 121 Comment
  UC481297  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  CAS-BOT-BC129204  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129209  Salix piperi Doris K. Kildale 1929-2-28 6950 Humboldt Essex - Mad River Comment
  CAS-BOT-BC129154  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Black Oaks, near Low Gap of Mad River Comment
  CAS-BOT-BC129174  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula near R.R. Comment
  POM280931  Salix scouleriana Lyman D. Benson 1929-7-15 1823 Humboldt Weott Ranger Station. Comment
  SBBG57987  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  UC512016  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1227 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  UCR143480  Salix scouleriana H. E. Parks 1931-5-12 0951 Humboldt North Coast, Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC128963  Salix sitchensis W. J. Ferlatte 1967-6-13 1119 Humboldt Cranell Coastal valley 3 Comment
  CAS-BOT-BC128984  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  CAS-BOT-BC128989  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC128995  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain: in wet meadow at McKay Camp 1676 Comment
  HSC33297  Salix sitchensis R. W. Becking, Thomas Overturf 1975-3-25 705 Humboldt Mad River, 1 mi. S of Blue Lake 21 Comment
  HSC90400  Salix sitchensis Jean Hanson 1980-3-8 5 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90420  Salix sitchensis Jean Hanson 1980-3-8 25 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90424  Salix sitchensis Jean Hanson 1980-3-8 8 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90749  Salix sitchensis Jean Hanson 1980-3-8 22 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC1173577  Salix sitchensis Joseph P. Tracy 1936-6-27 15007 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R. 91 Comment
  UC1222295  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt along coast rd. 1 mi. inland from Cape Mendocino (1/2 mi. s. of town); Foothills of Cape Ridge 60 Comment
  UC481381  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC481383  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Van Duzen R. Alton; , Alton 15 Comment
  UC492341  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
  UC526713  Salix tracyi Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC1222585  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt 8 mi. below Orleans (Klamath R. near Slate Creek, at Big Bar); Klamath R. 121 Comment
  RSA21579  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  POM118790  Sambucus callicarpa Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA24053  Sambucus callicarpa C. B. Wolf 1941-2-22 9918 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  CAS-BOT-BC238659  Sambucus nigra subsp. caerulea Doris K. Kildale 1926-9-9 2677 Humboldt Van Duzen River between Strong's [Strongs] Station & Bridgeville. Bar W. Ranch 158 Comment
  RSA183619  Sanguisorba minor D. E. Anderson 1965-5-1 3577 Humboldt Along Trinity River at Hoope. Comment
  HSC1798  Sanguisorba minor William J. Ferlatte, B. D. Rogers 1966-8-15 3122 Humboldt 1/2 mi. E of Azalea State Park Comment
  HSC26344  Sanicula arctopoides Thomas W. Nelson 1971-4-12 377 Humboldt S spit of Humboldt Bay. Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC21616  Sanicula arctopoides D. E. Anderson 1962-3-25 1950 Humboldt 1/4 mi. N of Fairhaven Comment
  UC154104  Sanicula arctopoides Joseph P. Tracy 1904-4-24 2021 1/2 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC223252  Sanicula bipinnatifida M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC23089  Sanicula bipinnatifida D. E. Anderson 1965-5-1 3564 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  JEPS281  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7967 Humboldt facing South Fork of Eel River (Phillipsville); Phillipsville 121 Comment
  UC1197094  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  RSA167239  Sanicula tracyi Joseph P. Tracy 1950-7-6 19022 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  HSC96245  Sanicula tuberosa M. Lindquist, C. Riley 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  UC154088  Sanicula tuberosa Joseph P. Tracy 1908-6 2825 Humboldt Northern Coast Ranges, Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  HSC36506  Sarcodes sanguinea Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1885 Humboldt Beside branch off FS Rd. 2S08 to Pine Mtn. Comment
  POM232030  Satureja douglasii I. L. Wiggins 1930-7-11 4681 Humboldt Near Samoa. Comment
  UC1124524  Satureja douglasii H. L. Person 1932-7-16 Humboldt highway n Trinidad; Rock Point Quad. Comment
  UC774703  Saxifraga mertensiana Carl B. Wolf 1941-3-2 4068 Humboldt 2 mi s of Honeydew (along Honeydew Creek); North Coast Range, Honeydew Creek 152 Comment
  HSC55745  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-26 10267 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC65984  Saxifragopsis fragarioides Gail Newton 1980-7-23 1751 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC70985  Saxifragopsis fragarioides Gail Newton 1980-7-22 1657 Humboldt Near Devils Backbone 1554 Comment
  RSA245226  Scabiosa atropurpurea Thomas W. Nelson 1970-10-31 280 Humboldt Beside Hwy 101 between Arcata and Eureka. Ca. 3 miles S of Arcata. Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC111381  Schoenoplectus acutus var. occidentalis Carl B. Wolf 1927-8-22 771 Humboldt Big Lagoon Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  HSC7488  Schoenoplectus californicus P. W. Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC419066  Scirpus acutus var. occidentalis H. E. Parks 1930-9-14 771 Humboldt n shore Big Lagoon; n shore Big Lagoon Comment
  UC213328  Scirpus cernuus Joseph P. Tracy 1920-6-6 5336 Humboldt along Freshwater Creek (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay, Freshwater Creek 30 Comment
  HSC7273  Scirpus microcarpus R. S. White 1965-5-18 87 Humboldt 0.5 mi. off Hwy. 101 on road to Crannel Comment
  UCSB55386  Scirpus microcarpus Wolf, Carl 1937-9-11 Humboldt Redwood Highway, 3 mi. N of Orick at Davison's Ranch; on Prairie Creek 60 Comment
  SEINET4673868  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood.; 0 76 Comment
  CAS-BOT-BC517417  Scoliopus bigelovii Alice Eastwood; John Thomas Howell 1937-6-23 4778 Humboldt Near Dinsmores Comment
  HSC98722  Scutellaria antirrhinoides Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC175792  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-21 3760 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC175798  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3842 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA82291  Scutellaria antirrhinoides F. W. Peirson 1932-7-7 10259 Humboldt Willow Creek. A few miles above town of that name. Comment
  UC1239696  Scutellaria antirrhinoides Joseph P. Tracy 1933-7-9 12654 Humboldt Brannan Mountain; Northern Coast Ranges, Brannan Mountain 1066 Comment
  JEPS62854  Scutellaria tuberosa Joseph P. Tracy 1921-4-24 5472 Humboldt facing Northern Coast Ranges South Fork Eel River (Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC154010  Scutellaria tuberosa Joseph P. Tracy Jul 27 1908-Jul 30 1908 2717 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC58160  Sedum divergens G. L. Clifton, Griswold 1979-8-2 12221 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC169907  Sedum radiatum Harley P. Chandler June, 1901 1379 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation, Hupa Valley (Hupa Indian Reservation, North Coast Ranges) 152 Comment
  SEINET4076756  Sedum radiatum O. M. Clark 1932-1 1295 Humboldt South Eureka. Comment
  HSC100455  Sedum spathulifolium Carl C. Marshall Jun 1887 471 Humboldt Rocks, S Humboldt. Comment
  JEPS25692  Sedum spathulifolium P. C. Hutchison 1961-5-22 2017 Humboldt along s side Willow Creek (n side hiway US 299, 2.6 mi e of Berry Summit); e of Berry Summit, s side Willow Creek Comment
  RSA0081470  Sedum spathulifolium Dave Kelly, W. Wisura 1986-7-27 4130 Humboldt 13.2 miles E of Bridgeville, along Hwy 36. Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  CDA42470  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway. Comment
  LA209676  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  SEINET203030 Image available Selaginella rupestris J. P. Tracy 1920-10-24 5407 Humboldt Around Humboldt Bay near Korbel 61 Comment
  RSA275307  Senecio elegans Thomas W. Nelson 1978-4-23 3880 Humboldt Adventive on coastal dunes northwest of Samoa Comment
  CAS-BOT-BC364013  Senecio integerrimus var. major Thomas W. Nelson; Jane P. Nelson 1980-5-25 5250 Humboldt North Coast Ranges. Along road from Dinsmore to Anderson Crossing. McKeown Ranch road ca 100 m north of junction of road to Hindley Cabin 822 Comment
  HSC32530  Senecio jacobaea Thomas W. Nelson 1973-9-3 1132 Humboldt McKeown Ranch N of Dinsmore Comment
  UC175387  Senecio sylvaticus J. P. Tracy 1907-6-20 2571 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC364329  Senecio triangularis Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CHSC61945  Sequoia sempervirens J. R. Biddison 1993-4-6 10 Humboldt Prairie Creek Redwoods State Park, Fern Canyon picnic area, 10 mi n of Orick, off hwy 101. 15 Comment
  POM181978  Sequoia sempervirens J. G. Lemmon 1901-09 s.n. Humboldt Eureka Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  NY64474  Sequoia sempervirens P. Nuns 12 1967 s.n. Humboldt Our Lady of Redwoods Monastery, Whitehorn Comment
  SEINET5334848  Sequoia sempervirens P. A. Lehenbauer 1857 Humboldt near Eureka Comment
  HSC104122  Sericocarpus oregonensis Julie Kierstead Nelson, Len Lindstrand III 2010-9-20 2010035 Humboldt Comment
  UC1224688  Sidalcea malachroides D. E. Anderson 1963-5-26 2502 Humboldt in alluvial gravel beds along s side Jacoby Creek; along s side of Jacoby Creek Comment
  JEPS79985  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head Yager (South Yager Creek); Northern Coast Ranges, South Yager Creek 762 Comment
  UC502955  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC103274  Sidalcea malviflora subsp. patula John McRae 2007-6-10 Humboldt Approx. 75 ft. N of NE corner of Fieldbrook School property, west side of Fieldbrook Rd., on private property. 44 Comment
  HSC104343  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 3 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  HSC23746  Sidalcea oregana Tim Baroni 1971-7-6 120 Humboldt 10 mi. S of Ferndale on Mattole Rd. Comment
  RSA20781  Sidalcea oregana subsp. spicata Carl B. Wolf 1937-8-13 9245 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  UC668100  Silene californica Joseph P. Tracy 1935-6-23 13997 Humboldt French Camp Ridge 1066 Comment
  POM192570  Silene californica H. E. Parks 1930-05 0751 Humboldt Vicinity of Hydesville. Comment
  UC419028  Silene californica H. E. Parks May 1930 751 Humboldt vicinity Hydesville; vicinity of Hydesville Comment
  UC1198350  Silene campanulata Joseph P. Tracy 1933-7-11 12675 Humboldt Horse Mountain 1432 Comment
  HSC58156  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-8-2 12208 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  RSA135349  Silene campanulata subsp. glandulosa Volney Rattan 1883 Humboldt Hoopa Valley. Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  UC1198358  Silene hookeri Joseph P. Tracy 1922-4-30 5999 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA502370  Silene hookeri D. W. Taylor 1971-5-12 1064 Humboldt At the junction of the Trinity and New Rivers, 305 Comment
  CAS-BOT-BC389063  Silene laciniata subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC389051  Silene laciniata subsp. californica J. Clausen 1932-9-17 676 Humboldt On a roadbank between Willow Creek and Redwood Creek 304 Comment
  CDA39474  Sisyrinchium bellum T. C. Fuller 1958-6-17 1715 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC90646  Sisyrinchium californicum Gail Newton 1983-6-5 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS62108  Smilacina racemosa W. L. Jepson 1902-7-24 2114 Humboldt 1/2 mi below summit; Trinity Summit 2133 Comment
  UC666975  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  UC673110  Solanum americanum Joseph P. Tracy 1940-10-5 16746 Humboldt Trinidad 3 Comment
  HSC47104  Solanum aviculare J. O. Sawyer 1978-11-5 3324 Humboldt Old Stagecoach rd. 1/5 mi. N of entrance to Trinidad Beach State Park Comment
  HSC37163  Solanum furcatum J. D. Ackerman 1974-5-25 257 Humboldt S Trinidad Beach, S of Trinidad Head Comment
  CAS-BOT-BC154216  Solanum umbelliferum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  CDA8726  Solidago canadensis subsp. elongata M. R. Pryor 1948-7-22 Humboldt County Road, Loleta. 0 Comment
  HSC75261  Solidago elongata J. O. Sawyer, M. A. Ericksen 1980-8-18 4055 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UCR48861  Solidago occidentalis R. D. Goeden, Don W. Ricker 1987-9-2 7 B Humboldt Carlotta, roadside on state Hwy 36 Comment
  CAS-BOT-BC365668  Solidago spathulata W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  CHSC55885  Solidago spathulata L. P. Janeway 1987-7-31 2545 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. On dunes. 3 Comment
  HSC12531  Solidago spathulata Wilbur Peterson 1970-10-7 22 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  HSC67441  Solidago spathulata J. P. Smith 1971-10-6 4948 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC727178  Solidago spathulata A. A. Heller 1924-7-22 13872 Humboldt Samoa Comment
Read comments
Sep 29 2006
  UC1223173  Soliva sessilis Joseph P. Tracy 1942-6-15 17157 Humboldt on the road to Harris 1/2 mi ne Garberville 304 Comment
  CAS-BOT-BC365810  Soliva sessilis Joseph P. Tracy 1936-6-3 14852 Humboldt Along path near house. Trinity River Valley, at Willow Creek 152 Comment
  HSC39803  Sonchus asper Peter Sorensen 1976-7-11 Humboldt King Salmon Comment
  HSC91904  Sonchus asper E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  UC582433  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  HSC21345  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  CDA26250  Spartina densiflora G. D. Barbe, Dick Drewery 1988-7-18 4295 Humboldt Between Highway 255 and tide zone, Humboldt Bay, north of Samoa. 0 Comment
  UCD92967  Spartina densiflora Phyllis Faber 1983-11-11 s.n. Humboldt Humboldt Bay, Arcata. Comment
  UCR21766  Spartina foliosa Denis Kearns 1979-8-24 20 Humboldt North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street 1 Comment
  CDA19921  Spartium junceum R. Spadoni 2002-6-26 PDR P 070828 Humboldt Northern California; Vicinity of Garberville. 0 Comment
  HSC4239  Spergula arvensis Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  OBI36625  Spergularia macrotheca David J. Keil 1983-7-2 17302 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  HSC96475  Spiraea douglasii Gordon Leppig 1997-6-19 457 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA246715  Spiraea douglasii Robert F. Thorne, Percy C. Everett 1965-8-7 35195 Humboldt At S end of Big Lagoon. 2 Comment
  RSA472780  Spiraea douglasii Emery M. Whilton 1941-6-25 s.n. Humboldt Scotia. Comment
  RSA286353  Spiranthes romanzoffiana Robert F. Thorne 1974-7-29 45085 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  HSC100156  Spirodela polyrhiza Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  HSC98913  Stachys ajugoides Cara Witte 2007-7-11 490 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC668222  Stachys ajugoides var. ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  UC630494  Stachys ajugoides var. rigida H. E. and S. T. Parks 1937-7 24025 Humboldt Spruce Cove Trinidad 60 Comment
  UCLA71146  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  CDA41010  Stachys ajugoides var. rigida T. C. Fuller 1958-6-17 593 -58 Humboldt Ferndale. 0 Comment
  UCLA71140  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  UC1239723  Stachys arvensis H. B. Tucker 1935-3-20 Humboldt Moron Ranch Arcata Bottom 9 Comment
  HSC89498  Stachys chamissonis P. A. Daly 1984-5-6 2 Humboldt Trinidad Head 61 Comment
  HSC27045  Stachys mexicana Brad Klipfel 1973-8-25 289 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC98026  Stachys rigida var. rigida Cara Witte 2007-7-9 451 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1554 Comment
  UC668076  Stellaria crispa Joseph P. Tracy 1930-7-16 8926 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC40427  Stellaria media Linda M. Barker 1976-2-22 1320 Humboldt 3 mi. W of Arcata Comment
  HSC91609  Stellaria media E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UC449998  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  HSC58409  Stipa lemmonii Terry Griswold, Marvin Butler 1979-7-10 7124 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC58570  Stipa occidentalis var. occidentalis G. L. Clifton, Griswold 1979-7-26 10297 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC87613  Streptanthus tortuosus Joseph P. Tracy; F. W. Pennell 1940-7-7 16667 Humboldt Grouse Mountain. 1463 Comment
  HSC58078  Streptopus amplexifolius G. L. Clifton, Griswold 1979-8-1 11980 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC519056  Streptopus amplexifolius Greg de Nevers 2001-4-19 12257 Humboldt Fern Canyon, Prairie Creek, Redwoods State Park 91 Comment
  HSC31134  Symphoricarpos mollis J. O. Sawyer 1970-6-24 2273 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  CAS-BOT-BC99165  Symphyotrichum chilense Carl B. Wolf 1927-8-29 1201 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen 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
  UC1174865  Symphyotrichum chilense P. C. Everett and E. K. Balls 1959-10-25 23960 Humboldt 1/4 mi w of, on hwy 299 to Arcata Willow Creek 502 Comment
  UC581687  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  HSC21156  Synthyris cordata D. E. Anderson 1962-3-4 1928 Humboldt About 2 mi. S of Trinidad Comment
  UC902236  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 Humboldt Willow Creek Canyon, along Trinity Highway, near crossing of East Fork Willow Creek Canyon 457 Comment
  UCD86204  Taeniatherum caput-medusae Eugene C. Whitney 1960-8-4 Humboldt Mary White prop., Fruit Ranch, E/Rainbow Peak, Upper Bear River. Comment
  CAS-BOT-BC376727  Tanacetum bipinnatum Doris K. Kildale 1925-7-2 912 Humboldt Table Bluff Comment
  HSC38341  Tanacetum bipinnatum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  UCD150391  Tanacetum bipinnatum Harry A. George; G. M., B. M. 1967-7-11 s.n. Humboldt Humboldt Bay, South Spit. Comment
  CAS-BOT-BC376722  Tanacetum bipinnatum Paul F. Covel 1939-8-7 1636 Humboldt Beach at Little River Comment
  SEINET4016798  Tanacetum camphoratum O. M. Clark 1932-1 663 Humboldt North Eureka. Comment
  UC1223070  Tanacetum parthenium Joseph P. Tracy 1946-7-28 17624 Humboldt Head of Willow Creek Comment
  RSA21021  Tanacetum vulgare C. B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, S side along Redwood Hwy. 6 Comment
  HSC38893  Tauschia kelloggii J. P. Smith, J. O. Sawyer 1973-5-12 6684 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC447404  Tellima grandiflora Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC44530  Tellima grandiflora Brad Klipfel 1973-7-1 138 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC63225  Tellima grandiflora M. A. Baker 1979-5-6 483 Humboldt 2 km. S of Weitchpec Comment
  HSC89548  Tellima grandiflora M. Roantree 1985-5-2 30 Humboldt E side of Trinidad Head. Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. 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
  SEINET6934811  Thermopsis macrophylla var. venosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt West of top of grade down to Klamath River, southeast of Orick. Comment
  CHSC96779  Thlaspi montanum P. Haggard 2004-8-18 1285929 Humboldt North Coast Ranges. Friday Ridge Rd, Willow Creek. Comment
  LA31710  Thuja plicata H. E. Parks; 1932-7-25 1139 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  OBI36631  Thuja plicata David J. Keil 1983-7-2 17308 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC41607  Tiarella trifoliata D. E. Anderson, J. P. Smith 1971-6-18 - 1054 Humboldt 1 mi. W of Lord Ellis Summit Comment
  UC303174  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1923-6-20 6314 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  RSA24194  Tiarella trifoliata var. unifoliata Carl B. Wolf 1941-3-1 9979 Humboldt 1 mi. n.e. of Strongs Station (on the Van Duzen River) on rd. to Yager. 61 Comment
  SD50778  Tiarella trifoliata var. unifoliata Darley F. Howe 1959-8-5 2809 Humboldt Drexel Grove, 5 miles north of Weott on #101 alternate Comment
  SDSU9572  Tiarella trifoliata var. unifoliata D. F. Howe 1961-7-31 3097 Humboldt 12 miles N of Garberville on #101. 30 Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC55632  Tolmiea diplomenziesii Overton, Butler 1979-7-24 9634 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC447609  Tolmiea menziesii Volney Rattan 1883-6-1 s.n. Humboldt Humboldt County Comment
  HSC21164  Tonella tenella D. E. Anderson 1963-5-18 2452 Humboldt Near junction of New and Trinity Rivers Comment
  HSC26806  Tonella tenella Thomas W. Nelson 1971-4-24 400 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  SEINET6987681  Tonella tenella Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Near east end of Bald Hills, southeast of Orick. Comment
  UC27664  Tonella tenella C. C. Marshall 1888-1 Humboldt Comment
  HSC10878  Torreyochloa pallida var. pauciflora R. Spellenberg 1965-6-14 1135 Humboldt 1.5 mi E of Bayside on road leading up Jacoby Creek Comment
  CAS-BOT-BC169178  Toxicodendron diversilobum Carl D. Duncan 1920-9-27 s.n. Humboldt Hoopa Valley Comment
  HSC63067  Tradescantia ohiensis David Wheeler 1979-5-17 115 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  HSC98556  Tragopogon dubius Cara Witte 2008-7-10 849 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  UC668266  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-25 15564 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS63134  Trichostema lanceolatum Joseph P. Tracy 1916-9-6 4759 Humboldt Grasshopper Ridge, head of Canoe Creek Northern Coast Ranges 609 Comment
  HSC32534  Trichostema laxum Thomas W. Nelson 1973-9-3 1128 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  HSC81619  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1980-8-4 6231 Humboldt Above Alder Springs along old trail 1585 Comment
  JEPS63170  Trichostema oblongum Joseph P. Tracy 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET11114238  Trientalis borealis subsp. latifolia Unknown 1913-6-25 4341 . Humboldt Plants of Northern Coast Ranges of California Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain, Humboldt County Altitude 2500 ft. Comment
  HSC70386  Trientalis latifolia M. A. Baker 1980-6-7 1859 Humboldt Near Ammon Creek 732 Comment
  UC147171  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1412 Humboldt Klamath River North Coast Ranges 243 Comment
  UC495672  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1223386  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1936-5-29 14819 Humboldt French Camp Comment
  HSC45120  Trifolium bifidum R. Sutherland 1978-5-27 1 .27578 Humboldt Whitehorn 311 Comment
  UC1223328  Trifolium campestre Joseph P. Tracy 1938-6-7 15857 Humboldt 5 mi se Korbel (Canyon Creek) Comment
  UC1197204  Trifolium ciliolatum Joseph P. Tracy 1911-7-11 3510 Humboldt Hoopa Valley Northern Coast Ranges 152 Comment
  UC205597  Trifolium ciliolatum J. P. Tracy 1919-5-31 5148 Humboldt along Willow Creek (near mouth of Tributary of Trinity River); Northern Coast Ranges 152 Comment
  HSC45124  Trifolium depauperatum R. Sutherland 1978-5-2 1 .2578 Humboldt 341 Comment
  RSA195478  Trifolium dubium C. R. Gunn 1963-6-2 2694 Humboldt Two miles SE of Arcata Comment
  UC33413  Trifolium eriocephalum var. eriocephalum W. C. Blasdale 1896-6-7 Humboldt Mad River Comment
  RSA296715  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  JEPS65883  Trifolium fucatum W. L. Jepson 1934-5-8 16718 Humboldt n Redway (South Fork Eel River) Comment
  UC1197032  Trifolium fucatum Joseph P. Tracy 1929-8-4 8649 Humboldt near Petrolia (Mattole River); North Coast Ranges 15 Comment
  UC162777  Trifolium gracilentum J. P. Tracy 1900-6-5 844 Humboldt immediate vicinity Eureka (Bucksport) 0 Comment
  HSC58651  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11709 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC98664  Trifolium longipes subsp. oreganum Cara Witte 2008-7-2 821 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  UC1223331  Trifolium longipes var. oreganum Joseph P. Tracy 1933-7-11 12698 Humboldt between Horse Mt. and Grouse Mt. (near Clear Lake) Comment
  JEPS65965  Trifolium microcephalum W. L. Jepson 1902-6-20 1898 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1223319  Trifolium obtusiflorum Joseph P. Tracy 1948-6-13 18060 Humboldt Garberville 243 Comment
  UC1223339  Trifolium obtusiflorum Joseph P. Tracy 1933-6-11 12555 Humboldt 4 mi s Dyerville (along hwy, along South Fork Eel River) Comment
  RSA273375  Trifolium oreganum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2711 Humboldt Along old trail from lookout to Blocksburg 1555 Comment
  UC1223325  Trifolium repens Joseph P. Tracy 1933-7-25 12861 Humboldt near Clear Lake; Grouse Mtn 1524 Comment
  HSC15164  Trifolium repens J. R. Kahl 1962-5-4 20 Humboldt 2 mi. S of Trinidad along old Hwy. 101 30 Comment
  UC1223320  Trifolium subterraneum Joseph P. Tracy 1951-6-21 19520 Humboldt in experimental garden of A. H. Nurphy on ranch of Everett Beck Hydesville Comment
  HSC84044  Trifolium subterraneum L. P. Janeway 1983-4-30 240 Humboldt 21 Comment
  HSC45129  Trifolium variegatum R. Sutherland 1978-6-1 1 .1678 Humboldt 282 Comment
  UCD109439  Trifolium variegatum W. A. Williams 1951-5-8 s.n. Humboldt location unknown. Comment
  UC169057  Trifolium variegatum var. melananthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3594 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC495678  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8571 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197556  Trifolium variegatum var. variegatum J. P. Tracy 1909-5-2 2966 Humboldt Eureka vicinity 0 Comment
  UC175673  Trifolium variegatum var. variegatum Joseph P. Tracy 1913-6-20 4232 Humboldt n w slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  UC1223311  Trifolium willdenovii Joseph P. Tracy 1934-4-8 13170 Humboldt betw Miranda and Redway South Fork of Eel River Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC1223522  Trifolium wormskioldii Joseph P. Tracy 1938-7-15 16076 Humboldt mouth of Eel River 3 Comment
  SEINET10862710  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1924-7-23 Heller 13876 Humboldt Wet soil in a ditch along the road leading to the lighthouse on Trinidad Head. Comment
  HSC23091  Triglochin maritima Norman Dennis 1965-6-8 101 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  UC1103521  Triglochin maritima Joseph P. Tracy 1910-6-5 3146 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  SEINET12050371  Trillium albidum F. H. Utech 1988-1 88 -286 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, above Van Duzen River 800 Comment
  CAS-BOT-BC133396  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC102558  Trillium ovatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1546 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET3991731  Trillium ovatum Unknown 1913-2-9 Humboldt Near Hydesville Comment
  HSC34878  Trillium ovatum R. M. Sullivan 1975-4-9 5 Humboldt 40 yds. S of Fern Lake, HSU, Arcata Comment
  UCD18653  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt off US Hwy 101. Comment
  SEINET10458960  Triodanis biflora Chandler CHANDLER 1514 B Humboldt SOMES BAR Comment
  HSC72575  Triphysaria eriantha J. P. Smith, J. O. Sawyer 1976-5-2 8637 Humboldt Redwood Valley Comment
  UC1198038  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC1222443  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1935-5-25 13851 Humboldt Fort Seward 106 Comment
  HSC103433  Triphysaria versicolor subsp. versicolor Thomas W. Nelson, Jane Nelson 2005-5-1 9305 Humboldt Eureka; vacant field at Broadway and Koster Streets. Comment
  SACT002443  Trisetum canescens Herbert Copeland 1936-6-15 Humboldt At world's biggest tree in redwood forest near Dyerville Comment
  JEPS75418  Trisetum cernuum W. L. Jepson 1932-7-29 16438 Humboldt Weott Comment
  SEINET202007 Image available Triteleia hyacinthina Joseph P. Tracy 1942-6-15 17136 Humboldt Englewood natural prairie near Redcrest resort 91 Comment
  HSC2994  Triteleia hyacinthina J. Wendell Howe 1934-7-24 1316 Humboldt Horse Mtn., Cold Spring Comment
  HSC3038  Triteleia hyacinthina D. E. Anderson 1962-7-14 2259 Humboldt Along Barry Ridge Rd. Comment
  HSC81661  Triteleia laxa Thomas W. Nelson, Jane P. Nelson 1980-7-13 6060 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  UC180201  Triteleia laxa Joseph P. Tracy 1914-5-14 4453 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC666899  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  POM169620  Triteleia peduncularis Joseph P. Tracy 1903-6-12 1920 Humboldt Immediate vicinity of Eureka. 0 Comment
  NY64310  Tsuga heterophylla E. K. Balls 1953-10-13 18654 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
  HSC21409  Typha latifolia W. J. Newton, Jr. 1967-7-30 24 Humboldt N side of Lanphere Rd., 10 yds. from road. Comment
  CDA4354  Ulex europaeus T. C. Fuller 1958-6-17 1714 Humboldt T. J. Cotter property, mouth of Elk River, Eureka. 0 Comment
  HSC30346  Umbellularia californica Dale R. Gradek 1974-5-28 91 Humboldt 1.0mi E of Hwy. 101 on N Bank Rd. 30 Comment
  UC153974  Urtica dioica subsp. gracilis J. P. Tracy 1910-10-1 3166 Humboldt immediate vicinity of Eureka 0 Comment
  UC1198133  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-4-24 7948 Humboldt near Alton 60 Comment
  UC302988  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt around Humboldt Bay (Northern Coast Ranges, Elk River Valley); Northern Coast Ranges, Elk River Valley 30 Comment
  UC1197782  Vaccinium membranaceum Joseph P. Tracy 1932-7-20 10741 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  UC562490  Vaccinium membranaceum Joseph P. Tracy 1936-8-7 15096 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  RSA22543  Vaccinium ovatum H. E. Parks, S. T. Parks, C. R. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  CAS-BOT-BC199421  Vaccinium parvifolium Elmer I. Applegate 1923-9-10 s.n. Humboldt Martin's Ferry, Klamath River Comment
  JEPS9384  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC28044  Vancouveria hexandra Chris Gist 1971-6-19 6 Humboldt Jolly Giant Canyon, HSU, Arcata Comment
  HSC37713  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 373 Humboldt Van Duzen Co. Park, off Hwy. 36, 6 mi. E of Carlotta 61 Comment
  HSC99472  Vancouveria planipetala K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 126 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA24190  Vancouveria planipetala C. B. Wolf 1941-3-2 9984 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 12 mi. W. of Redwood Highway. 457 Comment
  UCSB23564  Vancouveria planipetala Keefe, Joseph 1967-7-8 Humboldt Redwood Forest, Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  JEPS51168  Velezia rigida W. L. Jepson 1902-7-25 2120 Humboldt Hupa Valley Supply Creek (Supply Creek); , Supply Creek Comment
  UC1222526  Veratrum californicum var. californicum Joseph P. Tracy 1950-9-2 19347 Humboldt 2 mi s Field's Landing town (at Still Ranch) 6 Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC154273  Verbena lasiostachys var. lasiostachys Harley P. Chandler June, 1901 1353 Humboldt Hupa Indian Reservation 152 Comment
  HSC21192  Veronica americana Paul Shields 1955-6-16 Humboldt HSC campus Comment
  HSC55883  Veronica americana G. L. Clifton, Terry Griswold 1979-7-25 10956 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC99387  Veronica americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 36 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD88369  Veronica americana Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  HSC98564  Veronica arvensis Cara Witte 2008-6-13 723 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC147877  Veronica scutellata J. P. Tracy 1901-6-30 1196 Humboldt immediate vicinity of Eureka 0 Comment
  HSC56097  Veronica serpyllifolia subsp. humifusa G. L. Clifton 1979-7-31 11807 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC180235  Vicia americana var. americana Joseph P. Tracy 1914-5-30 4482 Humboldt near Hydesville; Northern Coast Ranges 30 Comment
  HSC15268  Vicia gigantea S. J. Hawks 1965-5-18 75 Humboldt Clam Beach. Comment
  UC1222588  Vicia hirsuta Joseph P. Tracy 1950-6-17 18835 Humboldt Eureka Comment
  HSC15262  Vicia hirsuta W. F. Nickel 1965-4-22 Humboldt N Arcata on E side of Hwy. Comment
  UCD108677  Vicia hirsuta P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC94775  Vicia sativa R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 839 Humboldt Humboldt Redwoods State Park. Pole Line Prairie, along Pole Line Road, 1 air mile N of Mattole Road, 6 air miles E of 274 Comment
  SBBG67490  Vicia sativa subsp. nigra R. Hartwell 1938-8-6 121 Humboldt near Eureka Comment
  HSC2104  Vicia sativa subsp. sativa C. B. Wolf 1927-8-28 1185 Humboldt Eureka Bay, on the road to Arcata Comment
  HSC89689  Vicia villosa subsp. varia Robin Bencie, James Jones, Rich Dwerlkotte 1989-4-28 15 Humboldt Along Hwy. 299, near Korbel, 7.5 mi. E of Hwy. 101 122 Comment
  UC175671  Vicia villosa subsp. villosa Joseph P. Tracy 1913-6-10 4085 Humboldt near Bridgeville (Burns ranch); Northern Coast Ranges 304 Comment
  CAS-BOT-BC263944  Viola adunca Mrs. H. E. Wilder 1924-5-26 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC263949  Viola adunca L. B. Kildale 1927-4-10 3084 Humboldt Big Lagoon Comment
  HSC21761  Viola adunca R. D. Modafferi 1965-3-13 15 Humboldt 0.6 mi. N of Trinidad on Trinity St. Approx. 1/2 mi. W of 30 Comment
  HSC21763  Viola adunca Doris K. Kildale 1926-3-27 1662 Humboldt Gans Prairie - Bald Hills Comment
  HSC32389  Viola adunca Linda M. Barker 1974-5-11 181 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  RSA46714  Viola adunca Doris K. Kildale 1926-3-20 1537 Humboldt Big Lagoon. Comment
  UC176962  Viola adunca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3586 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  SEINET200800 Image available Viola bakeri J. P. Tracy 1932-7-15 10596 Humboldt Trinity Summit Klamath Mts. Open ground near melting snow. 1829 Comment
  RSA249427  Viola beckwithii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC90169  Viola cuneata Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 57 Humboldt Horse Mtn. Summit; Rd. 6N36, 1 mi. N of Titlow Hill Rd. 1494 Comment
  UCSB18722  Viola cuneata Jensen, Karen 1965-4-15 Humboldt 0.2 km. W of U.S. Highway 101, by Miranda turnoff 91 Comment
  UC183623  Viola glabella Joseph P. Tracy 1913-3-9 4018 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC668250  Viola glabella Joseph P. Tracy 1933-7-16 12775 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  UCR45416  Viola glabella N. Meiselman, M. Bransom, D. Brown, R. Hildebrant 1986-4-19 35 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  CAS-BOT-BC536493  Viola glabella Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC21788  Viola glabella D. K. Smith 1968-4-8 13 Humboldt On West End Rd., ca. 3 mi. from U.S. 299 Comment
  HSC45612  Viola glabella Diane L. Reed 1978-5-7 54 Humboldt Top of Friday Ridge, 3 mi. S of Brush Mtn. on Friday Ridge Rd. Comment
  UC1761598  Viola glabella W. K. Parks Jul 1933 6238 Humboldt South Fork Mt. Comment
  UC183742  Viola hallii Joseph P. Tracy 1913-6-17 4166 Humboldt near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC70321  Viola ocellata M. A. Baker 1980-6-7 1872 Humboldt Near Ammon Creek 732 Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC66205  Viola ocellata Mrs. M. H. Manning Apr. 1901 41 Humboldt near Hupa Comment
  HSC62755  Viola odorata J. M. DiTomaso 1979-4-21 903 Humboldt Above cliffs at Elk Head just N of Trinidad Comment
  CAS-BOT-BC270151  Viola palustris H. E. Parks; Joseph P. Tracy 1927-4-23 7919 Humboldt Big Lagoon, in bog 3 Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  CHSC2036  Viola sempervirens E. Crouch 1929-5-9 Humboldt Redwoods. Comment
  HSC44318  Viola sempervirens J. Walker 1977-4-23 11 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC99554  Viola sempervirens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 219 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC98569  Viola sheltonii Cara Witte 2008-6-9 691 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1503 Comment
  JEPS40256  Vitis californica W. L. Jepson 1924-9-20 10653 Humboldt Richardson Grove South Fork Eel River Comment
  UC1121955  Vitis californica H. S. Yates 1936-6-24 5879 Humboldt 2 mi e Bear Butte; Briceland Quadrangle Comment
  CAS-BOT-BC184233  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7440 Humboldt Trinity River Valley, near the South Fork 182 Comment
  HSC9941  Vulpia myuros D. E. Anderson 1965-9-5 4088 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  SEINET200325 Image available Vulpia myuros var. myuros J. P. Tracy 1900-1 858 Humboldt Eureka. Comment
  HSC79517  Vulpia octoflora var. octoflora Kenneth Clark 1980-3-24 543 Humboldt Shelter Cove, N fork of Dead Man's Gulch. 76 Comment
  HSC20446  Whipplea modesta G. N. Bos 1965-5-2 239 Humboldt 7 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  UCD117288  Whipplea modesta K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  UCD136054  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC382922  Wyethia angustifolia Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  JEPS32070  Wyethia angustifolia Joseph P. Tracy 1930-7-27 8898 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC176305  Wyethia angustifolia Joseph P. Tracy 1913-6-20 4226 Humboldt lower foothills nw slope Buck Mountain; Northern Coast Ranges, nw slope lower foothills Buck Mt 762 Comment
  HSC98513  Wyethia longicaulis Cara Witte 2007-5-21 67 Humboldt White Oak Opening. 1257 Comment
  UC1096426  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt 11 mi northeast of Bridgeville near Six Rivers National Forest Comment
  CHSC31279  Xerophyllum tenax Mark Stopher 1980-5-28 76 Humboldt On French Camp Ridge, 10 mi w of RTE 169 on Bald Hills Rd. 1000 Comment
  HSC39230  Xerophyllum tenax D. E. Anderson, J. P. Smith 1971-7-6 - 1282 Humboldt Horse Mtn. Comment
  RSA246843  Xerophyllum tenax Robert F. Thorne, Percy C. Everett 1965-8-5 35144 Humboldt King Mountain 1220 Comment
  UC1198221  Xerophyllum tenax Joseph P. Tracy 1933-7-11 12671 Humboldt Horse Mountain 1432 Comment
  HSC8416  Zeltnera muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Look Prairie and Bull Creek Rd. to Dyerville, South Fork of Eel River Comment
  HSC23204  Zeltnera muehlenbergii Jana Kattenhorn 1970-10-31 171 Humboldt Scotia Bluffs, along railroad tracks on E side of the river Comment
  CAS-BOT-BC532734  Zigadenus micranthus H. C. Cantelow 1936-5-17 1355 Humboldt 11 miles east of Orick, grade to Yreka Comment
  UC176186  Zigadenus micranthus var. micranthus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3629 Humboldt Alton Northern Coast Region, Alton 30 Comment
  JEPS110509  Zostera japonica Gordon Leppig and David Couch 2006-11-17 2396 Humboldt Arcata Bay, mudflat W of City of Arcta oxidtion ponds, upper intetidal zone, 2 m from dike Comment



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