Search Results — 2000 specimen records retrieved (1354 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
  HSC71112  Abies concolor M. A. Baker 1980-5-23 1386 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC78052  Abies grandis Doris K. Kildale 1927-2-20 2964 Humboldt Korbel Hill at Angel's Ranch 304 Comment
  CAS-BOT-BC78054  Abies grandis L. R. Abrams 1916-7-18 6032 Humboldt Arcata to Trinidad Comment
  CDA17963  Abies grandis R. Spadoni 1999-9-29 PDR 1142246 Humboldt Northern California; USFS Rd. 1, Blue Lake. 0 Comment
  UC615066  Abies grandis Beryl O. Schreiber 1934-6-5 1131 Humboldt wooded slope 5 mi e of Blue Lake (road to Redding) Comment
  HSC16132  Abronia latifolia K. P. St. John 1965-5-21 39 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC16136  Abronia latifolia S. J. Hawks 1965-5-13 55 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025088  Abronia latifolia M. B. Dunkle 1936-8-18 4817 Humboldt Moonstone Beach, N. Arcata. Comment
  CAS-BOT-BC436987  Acaena novae-zelandiae D. W. Cooper 1966-10-10 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC98356  Acer macrophyllum T. Jimerson, J. Pageau 1979-7-31 706 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  SFV18469  Acer macrophyllum C. Lee 2002-4-21 20 Humboldt Titlow Hill Road, 0.25 miles southeast of intersection with Highway 299. Hillside near road. Comment
  UC166038  Acer macrophyllum Joseph P. Tracy 1910-4-17 3117 Humboldt near the forks Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, nr Elk River 0 Comment
  HSC100910  Acer macrophyllum Carl C. Marshall May 1886 208 Humboldt Banks of streams. Comment
  SEINET9350229 Image available Acer macrophyllum Frederick Utech, Knight, Walter; Knight Irja 1984-4-20 84 -175 Humboldt Humboldt County; Ca. 0.4 mi S towards Redcrest on Avenue of Giants from junction with US hwy 101. Trees to 20 ft.; along edge of Redwood Forest Association. Elev: 50 ft Herbarium, Carnegie Museum (CM), Pittsburgh, PA. 15 Comment
  CAS-BOT-BC28589  Achillea millefolium David D. Keck 1938-8-5 4775 Humboldt Big Lagoon Comment
  HSC73777  Achillea millefolium M. A. Baker 1980-6-7 1770 Humboldt Near Brush Mtn. 1128 Comment
  RSA298149  Achillea millefolium James Payne Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC57026  Achlys triphylla Overton, Butler 1979-7-24 9647 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC73767  Achlys triphylla Gail Newton 1980-7-20 1609 Humboldt Near Bell Swamps 1426 Comment
  HSC3331  Achlys triphylla Doris K. Kildale 1926-4-2 1716 Humboldt Briceland Bridge Comment
  JEPS47754  Achlys triphylla subsp. triphylla Lincoln Constance 1934-6-1 773 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Cr.); S. Fork Eel R., Bull Creek Region 45 Comment
  JEPS52978  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-29 16446 Humboldt Van Duzen R., Grizzly Flat Comment
  UC187245  Achnatherum lemmonii Joseph P. Tracy Jul 27 1908-Jul 30 1908 2707 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC552726  Achnatherum lemmonii Joseph P. Tracy 1935-6-23 13964 Humboldt French Camp Ridge 1066 Comment
  UCD50519  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp and Twin Lakes (at Preston's old gate near road). Humboldt County. Comment
  UCD50710  Achnatherum lemmonii G. L. Stebbins Jr.; G. L. Church 1941-5-27 3117 Humboldt 10.3 miles west of Dinsmore's, on road to Bridgeville. Humboldt County. Comment
  SEINET201042  Achnatherum occidentale subsp. californicum J. P. Tracy 1932-7-12 10446 Humboldt Trinity Summit; Corral Prairie 1524 Comment
  HSC71471  Acmispon micranthus J. P. Smith, J. O. Sawyer 1973-5-12 6673 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC71716  Acmispon nevadensis var. nevadensis M. A. Baker 1980-6-26 2439 Humboldt Near Sims Creek 610 Comment
  HSC71035  Acmispon wrangelianus Thomas W. Nelson 1977-4-20 3327 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  JEPS60388  Actaea rubra Lincoln Constance 1934-6-1 771 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Cr. flat grove (mouth of Bull Creek) mouth of Bull Creek; Bull Creek Region, S. Fork Eel R. 45 Comment
  HSC4593  Adenocaulon bicolor Lincoln Constance 1934-5-29 734 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  UC164803  Adenocaulon bicolor Joseph P. Tracy 1909-7-31 3042 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prarie 762 Comment
  RSA418957  Adenocaulon bicolor Lyman Benson 1927-7-11 226 Humboldt Weott Ranger Station, Seaward N Coast Mts. 61 Comment
  UC249775 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt Eureka 30 Comment
  CAS-BOT-BC62292  Adiantum aleuticum L. B. Kildale 1930-6-1 9745 Humboldt Klamath River at Weitchpec Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  SD92989  Adiantum aleuticum W. Bertsch 1953-7-29 213 Humboldt Near Weott 60 Comment
  UCD137172  Adiantum aleuticum K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, So. of Scotia. Comment
  SEINET181170 Image available Adiantum pedatum Bassett Maguire 1934-6-8 15048 Humboldt unspecified Comment
  UC1239508  Agoseris apargioides var. maritima Joseph P. Tracy 1918-7-28 5090 Humboldt Ocean Beach Northern Coast Region Comment
  HSC74403  Agoseris grandiflora Gail Newton 1980-6-28 747 Humboldt Near Mad River Butte. 1536 Comment
  UC1222886  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt n end Garberville Comment
  SEINET11855017  Agoseris heterophylla J. P. Tracy 1950-1 19006 Humboldt 2 mi S of Burr Valley on Albee Road 1158 Comment
  UC1199481  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1918-7-5 5024 Humboldt common in grassy places White Thorn Valley; Northern Coast Ranges 304 Comment
  UC249842  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD55636  Agrostis A. H. Murphy 1951-7-9 s.n. Humboldt 5 miles south of Ferndale. Bunker Hill Ranch. Comment
  UC186910  Agrostis alba Joseph P. Tracy 1907-7-20 2589 Humboldt ocean beach of Humboldt Bay; Northern Coast Region Comment
  UCD51874  Agrostis capillaris var. aristata A. H. Murphy 1951-6-13 58 Humboldt Tooby and Prior Ranch, 3 miles S of Blocksburg. Comment
  RSA129586  Agrostis exarata H. S. Yates 1936-6-16 5664 Humboldt 1 mile S.W. of Samoa. Comment
  UC1145061  Agrostis exarata Harold E. Parks and Joseph P. Tracy 1941-7-5 11489 Humboldt Coon Creek, east side of Trinity River below Willow Cr. 152 Comment
  UC249864  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC552751  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad 3 Comment
  RSA129594  Agrostis hallii H. S. Yates 1936-6-17 5689 Humboldt 1 mile W of Bridgeville 183 Comment
  UC33755  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6175 Humboldt near Ferndale Comment
  UCD52555  Agrostis hallii P. B. Kennedy 1929-6-14 308 Humboldt Humboldt County. Comment
  UCD52561  Agrostis hallii P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  UCD52682  Agrostis hallii P. B. Kennedy 1928-6-14 s.n. Humboldt Stoddard Store, near Garberville. Comment
  BLMAR707  Agrostis hallii Jennifer Wheeler 2013-10-25 707 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  SEINET200839 Image available Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka 0 Comment
  UC1103371  Agrostis viridis Joseph P. Tracy 1911-7-9 3460 Humboldt wet places along Willow Creek (creek is tributary of Trinity River); Northern Coast Ranges 243 Comment
  HSC8849  Aira caryophyllea Rudolf W. Becking 1961-7-3 Humboldt Korbel Kerr Ranch study plots Comment
  HSC8852  Aira caryophyllea True Hoyle 1967-9-9 27667 Humboldt 2 mi. NW of the junction of the Butler Valley and Fickle Hill roads 457 Comment
  HSC97500  Aira caryophyllea Cara Witte 2007-5-29 123 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  HSC8868  Aira praecox E. W. Styskel 1964-5-7 80 Humboldt 2 mi. S of Samoa near Samoa Rd. Comment
  HSC8869  Aira praecox J. P. Tracy 1932-5-16 10103 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  RSA550893  Aira praecox R. F. Thorne 1965-8-9 35308 Humboldt Big Lagoon 3 Comment
  UC526677  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  SEINET3883763  Allium amplectens D. W. McNeal, L. V. Mingrone 1967-6-12 382 Humboldt 8.0 mi. n.w. of Bridgeville on the county rd. to Kneeland, along the roadside.; 0 Comment
  UC3112 Image available Allium bolanderi Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge; ; Humboldt Co. Comment
  HSC81792  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5935 Humboldt Along old trail to pond, 0.5 mi. N of Alder Spring 1555 Comment
  OBI35866  Allium siskiyouense David J. Keil 1983-7-2 17327 Humboldt Horse Mountain Summit SW of Willow Creek. Comment
  RSA167424  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley. 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
  UC535705  Allium unifolium Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  SDSU11522  Allium unifolium unknown, Santa Ana Botanic Gaden 1940-5-20 Humboldt Coast Ranges Monterey Comment
  HSC100705  Allocarya plebeia Carl C. Marshall Jun 1886 178 Humboldt Near Scottsville. Comment
  JEPS58643  Alnus incana subsp. tenuifolia W. L. Jepson 1902-7-17 2058 Humboldt Trinity Summit 2133 Comment
  POM160903  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt North Dobbyn Creek. 152 Comment
  HSC3395  Alnus rubra D. A. Shally 1965-5-15 52 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  JEPS79807  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  JEPS40953  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15687 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC665537  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  HSC99379  Amelanchier alnifolia var. semiintegrifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 28 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  HSC96014  Amelanchier pallida Juha Pykala, D. H. Norris 1987-5-19 708 Humboldt Horse Mtn. Rd. at intersection of rd. to ski lift 1400 Comment
  OBI35862  Amelanchier utahensis David J. Keil 1983-7-2 17332 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  UC1239645  Amsinckia intermedia Joseph P. Tracy 1927-5-8 7990 Humboldt Garberville; Northern Coast Ranges 121 Comment
  UC525582  Amsinckia intermedia Joseph P. Tracy 1932-5-17 10097 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  HSC68155  Anaphalis margaritacea J. P. Smith 1971-10-6 4985 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA15556  Anaphalis margaritacea C. B. Wolf 1927-8-30 1230 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
  UC1199417  Anaphalis margaritacea Joseph P. Tracy 1937-7-29 15578 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC165847  Anaphalis margaritacea J. P. Tracy 1900-8-5 916 Humboldt immediate vicinity Eureka 0 Comment
  SEINET10904828  Anaphalis margaritacea Mary Susan Taylor 1977-8-2 Taylor 1427 Humboldt In mountains above and east of Eureka. Comment
  SEINET6734966 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt North Coast Ranges, along highway, Stone Lagoon 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
  HSC76584  Anemone deltoidea Teresa Prendusi 1981-7-24 484 Humboldt Near Whiteys Peak 1585 Comment
  UC13935  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
  SDSU9921  Anemone deltoidea D. F. Howe 1969-5-30 4606 Humboldt Forest east of Orick. 396 Comment
  UCSB17330  Anemone deltoidea Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  UC1196191  Anemone oregana Joseph P. Tracy 1932-7-16 10628 Humboldt near Corral Prairie (Trinity Summit); Klamath Mtns, Trinity Summit 1524 Comment
  UC503041  Anemone oregana Joseph P. Tracy 1928-4-1 8408 Humboldt n end Big Lagoon; Nort Coast Region 152 Comment
  HSC21444  Angelica genuflexa D. E. Anderson 1961-9-30 1852 Humboldt Blue Lake Comment
  UC1103417  Angelica genuflexa Joseph P. Tracy 1936-8-17 15148 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  HSC36598  Angelica hendersonii Linda Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1308 Humboldt Megwill Point on Elk Head, N of Trinidad, in Trinidad State Beach 15 Comment
  JEPS14106  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  BLMAR431  Angelica lucida Clara Sander 2003-7-12 431 Humboldt South Spit, South spit- east side 3 Comment
  CDA38195  Angelica lucida Gordon Leppig 1998-6-18 839 Humboldt Route 101 on Humboldt Bay at mouth of Jacoby Creek. Comment
  CAS-BOT-BC271496  Anisocarpus madioides Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC137781  Anthoxanthum Doris Kildale 1931-5-10 10557 Humboldt Snow Camp. Comment
  CAS-BOT-BC289124  Anthoxanthum occidentale Doris K. Kildale 1926-3-28 1671 Humboldt Redwood Creek at Berry's 289 Comment
  HSC49816  Anthoxanthum occidentale R. York 1979-4-21 243 Humboldt Behind the town of Korbel Comment
  HSC90402  Anthoxanthum occidentale Michele Lewis, Lisa Sims, Roger Cook 1992-5-12 49 Humboldt Behind the Redwood Science Lab, down gated fire access road 50 m, 10 m to right of trail. Comment
  UCD56272  Anthoxanthum odoratum A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3460 Humboldt Loleta Swamp, south of Eureka. Comment
  UCR46782  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Road 9.1 mi south of jct with Mountain View Road. 446 Comment
  UC154129  Aphanes occidentalis J. P. Tracy 1904-4-24 2033 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC154187  Apocynum androsaemifolium Mrs. M. H. Manning 1900-1 Humboldt near Hupa Hupa Comment
  CAS-BOT-BC392161  Aquilegia formosa E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  HSC18044  Aquilegia formosa D. E. Anderson 1965-5-1 3568 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC44500  Aquilegia formosa Brad Klipfel 1973-4-28 14 Humboldt Along Canyon Creek, SW of Korbel Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  SEINET12104678  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC70689  Arabis breweri var. breweri Gail Newton 1980-7-15 1568 Humboldt Near Sims Mtn. 1311 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  UC162360  Arabis glabra Joseph P. Tracy 1908-6 2711 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS53031  Arabis glabra Lincoln Constance 1934-6-22 920 Humboldt s of Dyerville (down Canoe Creek road to Redwood Highway); South Fork Eel River, Bull Creek Region, Grasshopper Peak Su Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC44361  Aralia californica Brad Klipfel 1974-8-2 511 Humboldt Horse Mtn., draw above Horse Mtn. creek Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  UC162626  Aralia californica Joseph P. Tracy 1911-7-5 3320 Humboldt near its mouth Willow Creek (tributary of Trinity R.); Northern Coast Ranges 304 Comment
  CAS-BOT-BC128694  Arbutus menziesii Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC7595  Arbutus menziesii D. E. Anderson 1965-5-8 3665 Humboldt ca. 5 mi W of Lord Ellis summit along Hwy 299 Comment
  HSC7596  Arbutus menziesii J. W. Johnson 1962-3-15 1184 Humboldt In the woods near Lanphere Lane, Christenson Farm, Samoa Peninsula Comment
  OBI33237  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC314647  Arbutus menziesii Joseph P. Tracy 1927-4-10 7895 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA0065452  Arbutus menziesii Nancy Ryan Zabriskie, Walter Zabriskie 1969-8-26 233 Humboldt South Fork of the Eel River below Piercy. Comment
  UC1198125  Arceuthobium campylopodum J. P. Tracy 1901-6-26 1060 Humboldt on Humboldt HIll Eureka vicinity 0 Comment
  UC154197  Arctostaphylos Harley P. Chandler June 1901 1291 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  SD42342  Arctostaphylos canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast Range, Horse Mountain. 1525 Comment
  CAS-BOT-BC25210  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-8 16850 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  SEINET11995492  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1988-1 s.n. Humboldt on embankment between Summit Rd junction & electronic towers at Summit, Horse Mt. Recreational Area Comment
  RSA15552  Arctostaphylos cinerea C. B. Wolf 1927-8-30 1240 Humboldt French's Ranch top of Wilder Ridge, between Honeydew and Ettersburg, near Upper Matole. Comment
  BLMAR53  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1994-2-14 53 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  CAS-BOT-BC23754  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1327 Humboldt Patrick's Point 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
  UC924266  Arctostaphylos columbiana H. S. Reed 1941-7-27 Humboldt coastal bluffs Orick Comment
  RSA12534  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-7-2 5904 Humboldt 4 mi. from Snow Camp on rd. to Bald Mt. (Mts. east of Korbel). 1159 Comment
  SEINET11984826  Arctostaphylos glandulosa Unknown 1965-1 542 Humboldt on USAL Road, 1 mi N of junction of Four Corners Comment
  UC585933  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13331 Humboldt ridge 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  RSA632789  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27764 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  CAS-BOT-BC24326  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1918-6-15 7111 Humboldt Brannan Mt. near Willow Creek. 1371 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC44450  Arctostaphylos nevadensis Brad Klipfel 1975-5-30 654 Humboldt Horse Mtn. Comment
  HSC7658  Arctostaphylos nevadensis Doris K. Kildale 1926-9-5 2615 Humboldt Lassicks Peaks, Red Lassick and Gray Camp 1662 Comment
  SEINET11988227  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4326 Humboldt Regional Parks Botanic Garden, Berkeley, orig. from French Camp Comment
  SEINET11995486  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1988-1 6360 Humboldt 21 mi up Bald Hill Rd from US 101 en route to Hoopa 975 Comment
  HSC74654  Arctostaphylos patula M. A. Baker 1980-5-17 1269 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC46795  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  HSC28130  Arctostaphylos uva-ursi J. D. Ackerman, A. M. Montalvo 1973-3-27 42 Humboldt 1.5 mi. N of Manila Comment
  RSA122503  Arctostaphylos uva-ursi H. S. Yates 1936-6-16 5661 Humboldt 1 mile S.W. of Samoa. Comment
  UC1225935  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  CDA10101  Arctotheca prostrata Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union Street at 7th Street. South of Phillips House. Comment
  UC1027189  Aristida oligantha J. I. Mallory 1955-9-17 122 Humboldt 3/8 mi nnw headquarters; Quad 29A-2, Cottrell Ranch 746 Comment
  HSC16901  Armeria maritima subsp. californica J. W. Johnson 1962-5-9 1337 Humboldt Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula Comment
  HSC47569  Armeria maritima subsp. californica Sheila Logan 1978-4-10 113 Humboldt McKinleyville, foot of Hiller Rd. at Ocean Rd., at Mad River. Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  HSC47944  Arnica cernua Brad Klipfel 1974-5-27 436 Humboldt Horse Mtn. Comment
  RSA43686  Arnica discoidea H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC82432  Arnica discoidea Doris K. Kildale 1926-6-27 2190 a Humboldt McClellan Mountain, Sweasey Lake road 822 Comment
  UC129316  Arnica discoidea Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5668 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  RSA46799  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mt. near Hoopa Comment
  CAS-BOT-BC94772  Arrhenatherum elatius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  UC1222998  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Meadow at Box Camp; Trinity Summit 1463 Comment
  HSC98912  Artemisia ludoviciana subsp. ludoviciana Cara Witte 2008-8-16 1022 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1359 Comment
  CHSC266  Artemisia pycnocephala M. Anthony 1960-5-1 Humboldt Coastal. Comment
  UC1222994  Artemisia pycnocephala Joseph P. Tracy 1947-8-31 17929 Humboldt Samoa Sand Dunes Comment
  RSA21583  Artemisia suksdorfii C. B. Wolf 1937-9-9 9303 Humboldt Coast, 4.5 mi S of Cape Mendocino. 6 Comment
  RSA40781  Artemisia suksdorfii C. B. Wolf 1944-10-26 11470 Humboldt Redwood Highway at Junction of road to Crannell 15 Comment
  HSC56136  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-8-1 11956 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UCD112908  Aruncus dioicus var. acuminatus Joseph P. Tracy 1932-7-18 10708 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  UC198579  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  CAS-BOT-BC400538  Asarum caudatum Alice Eastwood; John Thomas Howell 1937-6-23 4775 Humboldt Near Dinsmore's Comment
  SEINET12094754  Asarum caudatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -277 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1198116  Asarum caudatum Joseph P. Tracy 1913-6-25 4343 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC99498  Asarum hartwegii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 158 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  HSC1049  Aspidotis densa D. E. Anderson 1965-5-1 3582 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  HSC1052  Aspidotis densa P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC31193  Aspidotis densa D. E. Anderson 1972-6-20 5750 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC71671  Aspidotis densa M. A. Baker 1980-6-26 2383 Humboldt Near Sims Creek 610 Comment
  HSC73807  Aspidotis densa M. A. Baker 1980-6-16 1927 Humboldt Near Monks Camp. 1097 Comment
  HSC44046  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-1 3547 Humboldt On Ridge N of Bear Cr. 100 m W of Rd. 1S07 1555 Comment
  RSA93746  Aster radulinus F. W. Peirson 1923-7-10 3881 Humboldt Garberville. Comment
  CAS-BOT-BC177275  Astragalus R. C. Barneby 1954-5-19 11570 Humboldt On Henry Tosteon Ranch near Bear Butte about 4 mi. s. of Miranda 762 Comment
  RSA475237  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-29 746 -1 Humboldt Grizzly Creek Redwoods State Park; banks of Van Duzen River. 150 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
  UCD105332  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  SEINET13761872  Astragalus umbraticus C. Wilson, M. Groberg, B. Meinke 2011-1 s.n. Humboldt On Green Diamond Resource Company private land; Roadside edge on W slope of French Camp Ridge. 853 Comment
  HSC34744  Asyneuma prenanthoides Thomas W. Nelson 1974-7-19 1671 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC44042  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-9-3 3727 Humboldt Growing along Cr. draining N from pond above Alder Spring 1585 Comment
  JEPS23936  Athysanus pusillus Volney Rattan 1882-1 Humboldt Chemise Mountain Comment
  UC183747  Athysanus pusillus Joseph P. Tracy 1913-6-17 4170 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC4345  Atriplex leucophylla Jerry Parker 1968-10-26 206 Humboldt Driftline 0.5 mi. S of Big Lagoon. Comment
  SEINET10479114  Atriplex patula subsp. hastata Mary Susan Taylor 1982-10-24 Taylor 5177 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC93742  Atriplex prostrata Gordon Leppig, Sylvia Leppig 1998-9-17 1100 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle 2 Comment
  RSA246922  Atriplex subspicata R. F. Thorne, P. Everett 1965-8-8 35275 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC100249  Avena fatua J. P. Smith, & J. O. Sawyer 2010-5-2 12793 Humboldt At junction of Hwy. 96 and Big Rock Access Road. 145 Comment
  CAS-BOT-BC98771  Baccharis douglasii Carl B. Wolf 1927-8-30 1239 Humboldt Minor's Ranch, Union Matole, 6 mi. so. of Petrolia Comment
  RSA93204  Baccharis douglasii F. W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake. Comment
  UC249846  Baccharis glutinosa Joseph P. Tracy 1924-8-10 6810 Humboldt Van Duzen River, Blue Slide 91 Comment
  UC1119679  Baccharis pilularis H. L. Person 1932-10-7 Humboldt Leribee Creek Dyerville quad. Comment
  UC552309  Balsamorhiza deltoidea Joseph P. Tracy 1935-6-16 11282 Humboldt lower nw slope Buck Mountain 792 Comment
  CAS-BOT-BC16363  Barbarea orthoceras Doris K. Kildale 1927-7-22 3828 Humboldt Lassecks Peaks - Coral Goat Camp. 1661 Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  RSA245262  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy 101 at Bayside turnoll. Comment
  CDA6267  Bellardia trixago T. R. Haig 1960-6-15 4575 Humboldt 8 miles north of Trinidad. 0 Comment
  HSC39790  Bellis perennis Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  HSC91924  Bellis perennis E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  RSA167308  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
  UC1046539  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; Bald Mountain ridge, btw Mad River and Redwood Creek 1066 Comment
  RSA125218  Bensoniella oregona S. Carlquist 1951-6-14 158 Humboldt Below Felt Plateau, on road to Snow Camp 1006 Comment
Read comments
Nov 8 2010
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  UC35055  Berberis nervosa Chestnut and Drew 1888-7-11 Humboldt Jarnigan's Comment
  UC9754  Berberis nervosa Harley P. Chandler June, 1901 1286 Humboldt Hupa Indian Reservation; North Coast Ranges 1097 Comment
  UC1222894  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt near Slate Creek (Klamath River, below Orleans 8 mi); Klamath River 121 Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC26828  Blechnum spicant Clifton Raymond Chesbrough 1973-6-19 73 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  CAS-BOT-BC15786  Boechera acutina Thomas Nelson 1979-7-11 5028 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit. Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  HSC98127  Botrychium multifidum Cara Witte 2007-6-28 381 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  JEPS43499  Boykinia occidentalis Lincoln Constance 1934-6-11 846 Humboldt N. Dyerville Flat Bull Creek Region, e bank of South Fork Eel River (trail along E. bank of South Fork Eel River, Bull Creek Region) Comment
  UC1198853  Boykinia occidentalis Joseph P. Tracy 1927-6-19 8191 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC420256  Boykinia occidentalis Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  CAS-BOT-BC106296  Brickellia californica Carl B. Wolf 1927-8-27 1158 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  JEPS18754  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  UC657696  Briza maxima P. B. Kennedy 1929-6-13 Humboldt Etterberg Comment
  HSC12346  Briza minor Steve Dorei 1970-10-31 137 Humboldt Scotia Bluffs, N of railroad tracks Comment
  HSC99871  Briza minor Glenn W. K. Shelton 2010-7-7 9 Humboldt 6 mi. S of Kneeland Airport along Kneeland Rd. 658 Comment
  HSC100548  Brodiaea capitata Carl C. Marshall 1885-1 4 Humboldt Table Bluff. Comment
  HSC35968  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1952 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  JEPS5501  Brodiaea stellaris Milo S. Baker 1923-7-26 127 Humboldt near head of South Fork of Yager Creek; Lamb Ranch Comment
  HSC33078  Brodiaea terrestris subsp. terrestris Thomas W. Nelson, J. D. Ackerman 1974-5-14 1267 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  UC1145184  Bromus carinatus var. carinatus Joseph P. Tracy 1937-6-17 15334 Humboldt at Eureka Eureka 15 Comment
  UC552775  Bromus carinatus var. carinatus Harold E. Parks and Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad 60 Comment
  UCD60204  Bromus catharticus var. elatus A. H. Murphy 1947-8-19 s.n. Humboldt Fairground's exper. area. Fortuna. Comment
  UC526925  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt 2 to 5 mi e of South Fork Eel River (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UCD58714  Bromus hordeaceus A. H. Murphy 1951-6-1 53 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. 853 Comment
  UCSC000049  Bromus japonicus H. S. Yates 1936-6-17 5687 Humboldt 1 mile W. of Bridgeville - Dyerville 183 Comment
  HSC9205  Bromus laevipes True Hoyle 1967-7-24 29467 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  UC1145188  Bromus laevipes Joseph P. Tracy 1950-6-15 18785 Humboldt 7 mi n of Haris (Mail Ridge); Mail Ridge 1036 Comment
  UC1541517  Bromus laevipes Harold E. Parks 1934-6-3 4953 Humboldt 2 mi w of Bridgeville 152 Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  HSC73757  Bromus tectorum Gail Newton 1980-7-11 1326 Humboldt Near Red Mtn. 1341 Comment
  UC37724  Bromus tectorum Harley P. Chandler June, 1901 1432 Humboldt North Coast Ranges, Klamath River Klamath River; North Coast Ranges, Klamath River 335 Comment
  HSC9375  Bromus vulgaris D. E. Anderson 1965-9-5 4080 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC9377  Bromus vulgaris J. P. Tracy 1926-6-13 7601 Humboldt Near Blue Lake Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC36863  Cakile edentula var. edentula Carl B. Wolf 1927-8-29 1217 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino. Comment
  HSC39982  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 mi. W of Arcata Comment
  HSC40408  Cakile maritima Linda M. Barker 1976-6-22 1627 Humboldt 3 mi. W of Arcata Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  HSC90258  Cakile maritima Jean Hanson 1980-5-24 78 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island, 25 ft. from high tide line Comment
  SEINET11993511  Cakile maritima F. H. Utech 1986-1 86 -403 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  UCD57504  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  JEPS52599  Calandrinia ciliata Lincoln Constance 1934-6-19 912 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek Region (near summit) 914 Comment
  UC1198380  Calandrinia ciliata Joseph P. Tracy 1933-5-28 12405 Humboldt Ocean View Cemetary Eureka 15 Comment
  UC1922744  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35345 Humboldt Along Hwy. 101 about 3 mi. N or Eureka. Comment
  CHSC100698  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 2007-6-13 35345 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. deep of ditch along roadside. 1 Comment
  CAS-BOT-BC80382  Calocedrus decurrens Doris K. Kildale 1928-7-1 5313 Humboldt Klamath River at mouth of Bluff Creek Comment
  HSC56964  Calocedrus decurrens Overton, Butler 1979-7-23 9484 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  HSC73535  Calochortus tolmiei Gail Newton 1980-7-14 1494 Humboldt Near Last Chance Ridge. 1219 Comment
  UC659312  Calochortus tolmiei Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2614 Humboldt near Eureka; Larrabee Valley 762 Comment
  UCR45374  Calochortus tolmiei Thomas W. Nelson 1977-6-15 3450 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  CAS-BOT-BC494360  Calochortus tolmiei Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC494362  Calochortus tolmiei Volney Rattan 1879-6-7 13 Humboldt Long Prairie Comment
  HSC45281  Calochortus tolmiei Clifton Raymond Chesbrough 1971-7-19 57 Humboldt 1.0 mi. N of Trinidad near ocean Comment
  JEPS17828  Calochortus vestae Joseph P. Tracy 1918-6 4513 Humboldt Eureka Northern Coast Ranges Comment
  SEINET12054002  Calochortus vestae J. P. Tracy 1950-1 18868 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 152 Comment
  UC9022  Caltha biflora J. Burtt Davy 1899-6-23 5764 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit. Comment
  CAS-BOT-BC273312  Calycadenia fremontii L. R. Abrams 1918-6-16 7133 Humboldt Willow Creek Comment
  CAS-BOT-BC273314  Calycadenia fremontii Doris K. Kildale 1925-7-5 1006 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC273310  Calycadenia fremontii G. D. Carr 1974-9-12 785 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Rd, ca. 3.5 mi WSW of Salyer 458 Comment
  RSA167249  Calycadenia truncata subsp. microcephala Joseph P. Tracy 1941-9-1 17009 Humboldt In slide rock along Trinity River near Don Juan Point 335 Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  SEINET5058650  Calystegia sepium Unknown 2002-8-22 84 Humboldt Along Fischer Road just N of the Mad River. Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  RSA71112  Calystegia soldanella F. W. Peirson 1923-7-11 3805 Humboldt 18 miles north of Eureka Comment
  UC584209  Calystegia soldanella David D. Keck and J. Clausen 1935-6-16 3384 Humboldt mouth of Little River Comment
  HSC33058  Camassia quamash subsp. linearis Thomas W. Nelson 1974-5-7 1237 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  JEPS8450  Camassia quamash subsp. quamash Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt between Mad River and Redwood Creek (Bald Mountain Ridge), at Snow Camp Redwood Creek; Snow Camp 1432 Comment
  NY679571  Camissonia cheiranthifolia F. W. Hunnewell 1925-7-21 9739 Humboldt Clam Beach N of Eureka. Comment
  RSA120762  Campanula prenanthoides S. S. Tillett 1956-7-6 612 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  SEINET10462964  Campanula prenanthoides Newton 1981-8-6 Newton 2408 Humboldt Iaqua Buttes Quad, near Mad River, N slope, sedimentary soil. 1308 Comment
  SEINET10462985  Campanula prenanthoides Wolf 1937-8-13 WOLF 9215 Humboldt North Coast Range; 8 miles east of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  SEINET10972390  Campanula prenanthoides Tracy 1908-6-27 TRACY 2859 Humboldt Valley of Van Duzen River; opposite Buck Mountain, in woods. 762 Comment
  SEINET10972405  Campanula prenanthoides Willis L. Jepson 1932-7-24 Jepson 16383 Humboldt FRUITLAND Comment
  UC1174488  Campanula prenanthoides Volney Rattan 1883-6-30 Humboldt Comment
  SEINET10463695  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkins Ck. T9N R5E MIDDLE SECT. 3. 760 Comment
  SEINET10463703  Campanula scouleri Baker 1947-8-10 Baker 11901 Humboldt 15 mi NE of Hoopa near end of Forest Rd. Fir forest. 1372 Comment
  SEINET10463758  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt Grogan's Hole area Comment
  SEINET10463759  Campanula scouleri Joseph P. Tracy 1937-7-25 Tracy 15560 Humboldt Happy Camp Mountain; in Trinity Summit Range, northeast of Hawkins Bar, moist bank. 1280 Comment
  UC168957  Campanula scouleri Joseph P. Tracy 1908-6 2858 Humboldt opposite Buck Mountain (in woods); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC35279  Capsella bursa-pastoris J. D. Ackerman, A. M. Montalvo 1975-6-22 492 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC103887  Cardamine angulata Dana York, Laura Julian, Hilary Sundeen, Jenny Lynn Hutchinson 2014-5-14 3231 Humboldt Redwood State and National Parks; in the Lost Man Creek drainage, along a dirt road, 1.2 air-km E of State Route 101, just above the south bank of Lost Man Creek. 24 Comment
  JEPS53316  Cardamine angulata Joseph P. Tracy 1926-6-12 7588 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC26654  Cardamine breweri Thomas W. Nelson 1971-4-27 427 Humboldt Along Jolly Giant Creek, HSU campus Comment
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 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
  JEPS79886  Cardamine nuttallii var. covilleana Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC18517  Carex abrupta Joseph Prince Tracy 1932-7-14 10548 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC97167  Carex abrupta Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 12 Humboldt 1 mi. east of Hwy. 299 on Forest Service Road NF1; Grouse Mountain Meadow 1585 Comment
  UC562440  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC17981  Carex aquatilis Joseph Prince Tracy 1935-6-8 13948 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  SEINET10644708  Carex athrostachya Joseph P. Tracy 1934-7-18 Tracy 13426 Humboldt 1524 Comment
  CHSC47364  Carex bolanderi L. P. Janeway 1984-5-27 835 Humboldt Ca 1 mi E of Redway on Redwood Cr. 91 Comment
  CHSC93263  Carex bolanderi Thomas Nelson; Jane Nelson 1977-7-1 3552 Humboldt The Lassics. Along Blanket Creek. 1493 Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  RSA337439  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-7 35197 Humboldt Big Lagoon, south end. 2 Comment
  JEPS25964  Carex densa Joseph P. Tracy 1927-5-30 8095 Humboldt Vicinity of Garberville 121 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
  UC562432  Carex deweyana subsp. leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka 60 Comment
  CAS-BOT-BC19964  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  UC2015873  Carex feta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4347 Humboldt Coast Range, Burr Valley area. 'False Burr Valley' Comment
  JEPS25968  Carex geyeri Joseph P. Tracy 1933-7-11 12662 Humboldt Horse Mountain 1432 Comment
  BLMAR179  Carex globosa Jennifer Anthony-Wheeler 1994-6-7 179 Humboldt King range, Near horse Mt ridgee 670 Comment
  UC562640  Carex gracilior Joseph P. Tracy 1935-6-8 13940 Humboldt at Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC146592  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  UC562729  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Costa Ranges. Phillipsivelle, facing south Fork of Eel River. Comment
  CAS-BOT-BC146605  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-23 4841 Humboldt 8 miles from Kneeland on road to Yager Comment
  CAS-BOT-BC146619  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-22 4750 Humboldt 8 1/2 miles from Blocksburg on road to Bridgeville Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  SEINET7561246 Image available Carex harfordii Andrew L. Hipp 1999-5-31 456 Humboldt Alder Point, Alder Pt Road ca 3 mi S of Alder Pt. 503 Comment
  CHSC40134  Carex hendersonii L. P. Janeway 1983-5-29 320 Humboldt Along Jolly Giant Cr, e of HSU campus. 60 Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC48358  Carex hendersonii D. H. Norris May 1970 12460 Humboldt Fringes of Freshwater Lagoon, S of Orick Comment
  UC562436  Carex lenticularis var. impressa Joseph P. Tracy 1932-7-14 10554 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC31260  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CAS-BOT-BC21121  Carex leptalea Joseph Prince Tracy 1918-7-21 5086 Humboldt Northern Coast Range. Humboldt Hill. 91 Comment
  HSC97361  Carex leptalea Juha Pykala, D. H. Norris 1987-6-24 1895 Humboldt Big Lagoon. 0 Comment
  CAS-BOT-BC31469  Carex leptopoda Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC82622  Carex mendocinensis Thomas W. Nelson 1977-6-15 3447 Humboldt Along old road to ski area 1372 Comment
  CAS-BOT-BC31822  Carex mendocinensis Joseph Prince Tracy 1935-7-14 14086 Humboldt Along streamlet Grouse Mountain. 1524 Comment
  HSC76390  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  HSC102156  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1064 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC32129  Carex multicaulis Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  SEINET10850491  Carex nudata Harley P. Chandler Chandler 1235 Humboldt Redwood Belt. Comment
  CAS-BOT-BC119388  Carex obnupta Doris K. Kildale 1926-4-4 1732 Humboldt Big Lagoon Comment
  JEPS63691  Carex obnupta William S. Cooper 1925-7-29 112 Humboldt Samoa Comment
  UC1598395  Carex obnupta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4353 Humboldt Burr Creek Burr Valley Comment
  HSC38334  Carex obnupta P. D. Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa, in vicinity of Humboldt County Airport Comment
  UC1041076  Carex obnupta J. W. Congdon 1904-7-23 Humboldt Peninsula Eureka Eureka Comment
  CAS-BOT-BC119266  Carex ovalis Joseph Prince Tracy 1927-7-17 8279 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  CAS-BOT-BC119236  Carex pachystachya Joseph Prince Tracy 1930-7-16 8984 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC119241  Carex pachystachya Joseph Prince Tracy 1939-7-9 16325 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC90643  Carex pansa Gail Newton 1982-5-5 2535 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC2015859  Carex pellita Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4346 Humboldt Coast Range, Burr Valley area. 'False Burr Valley', beside Burr Creek. Comment
  UC562632  Carex praticola Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  SEINET7572538 Image available Carex preslii Ray Tallent 1987-8-11 895 Humboldt Six Rivers National Forest, road S of Horse Mtn. 1390 Comment
  SEINET2144409  Carex rostrata Unknown 1924-7-4 6706 Humboldt Snow Camp. 1370 Comment
  JEPS80022  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC45950  Carex straminiformis J. P. Smith, Steve Selva 1970-7-30 4132 Humboldt Comment
  CAS-BOT-BC116908  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4751 Humboldt 8.5 miles from Blocksburg on road to Bridgeville. 335 Comment
  UC562636  Carex subfusca Joseph P. Tracy 1936-6-5 14858 Humboldt 6 mi se Arcata (Fickle Hill) 579 Comment
  SEINET3910196  Carex tracyi Thomas W. Nelson, Jane P. Nelson 1978-6-10 4418 Humboldt Eureka Quad. Second growth redwood forest behind Eureka Seventh Day Advent Church on F St.; 0 61 Comment
  CAS-BOT-BC115567  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore's Comment
  UC1103114  Carex tumulicola Joseph P. Tracy 1927-7-21 8288 Humboldt Carlotta Northern Caost Ranges 60 Comment
  CAS-BOT-BC115540  Carex unilateralis Joseph Prince Tracy 1930-6-15 8756 Humboldt Bordering a pond, Dobbyn Creek 152 Comment
  CAS-BOT-BC115542  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  HSC45970  Carex vesicaria J. P. Smith, Steve Selva 1970-6-30 4133 Humboldt Comment
  UC562343  Carex vesicaria var. major Joseph P. Tracy 1934-7-13 13388 Humboldt Dow's Prairie 60 Comment
  HSC7090  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon 0 Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  UC249753  Carex viridula var. viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  UC1196856  Castilleja affinis subsp. litoralis Joseph P. Tracy 1927-8-14 8332 Humboldt n end Big Lagoon (hills) 152 Comment
  BLMAR305  Castilleja ambigua subsp. humboldtiensis Jennifer Anthony-Wheeler 2002-7-1 305 Humboldt South Spit 6 Comment
  CAS-BOT-BC249254  Castilleja ambigua subsp. humboldtiensis Doris K. Kildale 1928-5-25 6041 Humboldt Eureka - end of third street near drawbridge 15 Comment
  HSC104042  Castilleja ambigua subsp. humboldtiensis C. Reynolds 2015-4-28 40 Humboldt Near creekside on Arcata Marsh, south of Interpretive Center 5 Comment
  JEPS3825  Castilleja applegatei subsp. martinii Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC535764  Castilleja applegatei subsp. martinii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  JEPS24219  Castilleja applegatei subsp. pinetorum Peter H. Raven with R. Snow 1958-7-20 13636 Humboldt 2.0 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  RSA132832  Castilleja applegatei subsp. pinetorum Peter H. Raven, Sidney R. Snow 1958-7-20 13636 Humboldt 2 miles south of jct. of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  UC1173698  Castilleja attenuata Joseph P. Tracy 1939-4-29 16255 Humboldt Orleans 121 Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  HSC40935  Castilleja exserta subsp. latifolia Linda M. Barker 1976-6-1 1545 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  JEPS76196  Castilleja exserta subsp. latifolia T. I. Chuang with Fei-Mei Chuang 1977-7-19 7625 Humboldt about 3 mi n Samoa; Manila Comment
  HSC56190  Castilleja miniata Gilbert Muth 1979-8-1 12128 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC99512  Castilleja miniata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 174 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-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  UC313721  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1923-6-18 6285 Humboldt Cape Mendocino Northern Coast Ranges (sw slopes fronting the ocean) 152 Comment
  SBBG115928  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  HSC40884  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2869 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC1193335  Ceanothus cordulatus P. Zinke 1950-10-9 77 Humboldt King Peak King Peak Quad. 28D1 1280 Comment
  HSC70378  Ceanothus cuneatus M. A. Baker 1980-6-7 1789 Humboldt Near Brush Mtn. 1128 Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  RSA134579  Ceanothus incanus Percy C. Everett, E. K. Balls 1959-10-26 23977 Humboldt 6 mi SE from Honeydew on Old Coast Road to Ettersberg. 518 Comment
  CAS-BOT-BC63681  Ceanothus integerrimus L. B. Kildale 1928-5-19 5138 Humboldt Chalk Mountain. Comment
  HSC40027  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2873 Humboldt At Goat Hill Lookout 1666 Comment
  HSC96951  Ceanothus integerrimus Whitney Meier, Elizabeth Kimbrough 2007-6-11 4 Humboldt Cold Springs Camp, 14.1 mi. S of Hwy. 299 on FS Rd. NF1 Comment
  RSA554577  Ceanothus integerrimus Walter Wisura 1993-5-9 4895 Humboldt Hwy 299, W of Redding on E side of Whiskeytown Lake near visitor center Comment
  UC275287  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-11 6675 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  UCD112339  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt Ridge west of Brushy Mtn. 1 1/2 miles from the ocean. 914 Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  UCR131692  Ceanothus parryi C. B. Wolf 1941-7-27 11086 Humboldt North Coast Range, 5.8 miles west of Maple Creek on road to Freshwater from Korbel 610 Comment
Read comments
Mar 29 2012
  CAS-BOT-BC51208  Ceanothus parryi W. R. Dudley 1899-6-1 s.n. Humboldt Near grade descending from the hills to Eel River Comment
  HSC41346  Ceanothus pumilus Brad Klipfel 1974-9-17 575 Humboldt Horse Mtn. Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  CAS-BOT-BC52216  Ceanothus thyrsiflorus Doris K. Kildale 1926-4-11 1753 Humboldt Blue Slide in the Van Duzen River Comment
  HSC12431  Ceanothus thyrsiflorus Gary J. Stebbins 1970-2-22 12 Humboldt Along Hwy. 299 0.5 mi W of Mad River bridge Comment
  HSC18341  Ceanothus thyrsiflorus Francis Winter 1960-4-23 Humboldt 1.0 mi S of Dollar Ranch Korbel-Maple Creek Rd. 152 Comment
  HSC79361  Ceanothus thyrsiflorus Kenneth Clark 1980-6-14 684 Humboldt Above N Fork of Dead Man's Gulch 213 Comment
  CAS-BOT-BC52862  Ceanothus velutinus Doris K. Kildale 1925-8-18 1226 Humboldt Trinity Summit 1828 Comment
  UC1199120  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Eureka 60 Comment
  SEINET11860706  Centaurea cyanus J. P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville & head of S. Yager Comment
  UC1119132  Centaurea melitensis H. L. Person 1932-7-23 Humboldt road e of Korbel; Eureka Quadrangle Comment
  UC162716  Centaurium muehlenbergii Joseph P. Tracy 1911-7-10 3485 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC154023  Centunculus minimus J. P. Tracy 1903-8-9 1943 Humboldt immediate vicinity of Eureka 0 Comment
  UC199562  Cephalanthera austiniae Chesnut and Drew 1885-7-9 Humboldt Campbell's Comment
  CAS-BOT-BC384901  Cerastium arvense Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC852498  Cerastium arvense Milo S. Baker 1931-5-17 5187 Humboldt along Hwy. 4.2 mi. s. Garberville Comment
  HSC4100  Cerastium glomeratum D. B. Bader 1963-2-17 41 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC79373  Cerastium glomeratum Kenneth Clark 1980-3-27 552 Humboldt Above Dead Man's Gulch 183 Comment
  HSC60028  Cercis occidentalis M. A. Baker 1977-6-6 369 Humboldt Hoopa Comment
  RSA46727  Cercis occidentalis Doris K. Kildale 1938-1 15367 Humboldt Hoopa trip. Comment
  HSC54860  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-7-25 10761 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS39309  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1926-7-25 7755 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC562419  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1935-7-28 14322 Humboldt head of Devil's Hole Trinity Summit 1828 Comment
  POM182347  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie 762 Comment
  HSC38999  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1976-5-31 2660 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  CAS-BOT-BC473030  Chenopodium macrospermum var. farinosum Malcom A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  CAS-BOT-BC473032  Chenopodium macrospermum var. farinosum Edward Lee 1934-8-17 1151 Humboldt East shore of Big Lagoon, 35 miles N of Eureka 3 Comment
  UC673035  Chenopodium macrospermum var. halophilum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; on shore 3 Comment
  HSC48840  Chimaphila menziesii Brad Klipfel 1973-7-15 197 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC71586  Chimaphila umbellata Gail Newton 1980-6-16 187 Humboldt Near Onion Mtn. 1280 Comment
  UC535746  Chimaphila umbellata Eleanor Armstrong 1173 Humboldt Richardson Grove Comment
  SEINET3992219  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC497672  Chlorogalum pomeridianum L. R. Abrams 1918-6-16 7191 Humboldt Willow Creek Comment
  UCD138429  Chlorogalum pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  SEINET11835174  Chrysanthemum segetum J. P. Tracy 1950-1 18831 Humboldt Eureka Comment
  CAS-BOT-BC36481  Chrysolepis chrysophylla Doris K. Kildale 1926-9-5 2628 Humboldt Top of ridge at Goat Camp, Lassecks Peaks 1661 Comment
  HSC54607  Chrysolepis chrysophylla var. minor Overton, Butler 1979-7-24 9699 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  SD58270  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  UC642264  Cicuta douglasii Joseph P. Tracy 1938-9-25 16169 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC48313  Circaea alpina subsp. pacifica Brad Klipfel 1973-8-3 301 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562520  Circaea alpina subsp. pacifica Joseph P. Tracy 1934-7-18 13459 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  BLMAR107  Cirsium occidentale var. candidissimum Jennifer Anthony-Wheeler 1994-7-26 107 Humboldt Lacks Creek, growing on dry exposed banksurrounded by doug fir 1158 Comment
  JEPS59288  Cirsium occidentale var. candidissimum W. L. Jepson 1927-7-3 12371 Humboldt near Leggett Valley; South Fork Eel River 365 Comment
  JEPS59296  Cirsium occidentale var. candidissimum W. L. Jepson 1932-8-8 16486 Humboldt Bull Creek Grasshopper Peak, Bull Creek 1005 Comment
Read comments
Jan 17 2008
  SBBG25858  Cirsium vulgare D. Myrick 1966-8-16 1579 Humboldt Prairie Crk Redwoods State Park 152 Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  CAS-BOT-BC160963  Clarkia amoena subsp. amoena Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  CAS-BOT-BC160965  Clarkia amoena subsp. amoena Lester Rowntree 1937-8-18 s.n. Humboldt Between Ferndale & Capetown Comment
  RSA0059976  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 424 Humboldt U.S. Highway 101, 4.8 miles north of Ohman Creek Bridge (4-07) Comment
  CAS-BOT-BC164177  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Garberville Comment
  HSC35351  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 485 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  UC20297  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1363 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  LA47441  Clarkia gracilis subsp. gracilis Joseph P. Tracy; 1913-6-11 4091 Humboldt lower foothills of Buck Mountain, on its NW slope 761 Comment
  CAS-BOT-BC172391  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt Hills west of the South Fork of the Trinity River near its mouth 640 Comment
  JEPS43563  Clarkia purpurea subsp. viminea W. L. Jepson 1902-7-4 1982 Humboldt beneath The Maul Oaks; Hupa Valley Comment
  UC20026  Clarkia rhomboidea Harley P. Chandler June, 1901 1339 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC902014  Claytonia cordifolia Harold E. Parks and Joseph P. Tracy 1949-6-25 11680 Humboldt Box Camp Trinity Summit (Trinity Summit) 1463 Comment
  SEINET196688  Claytonia cordifolia H. E. Parks, JP Tracy 1949-6-25 11680 Humboldt Trinity Summit at Box Camp 1460 Comment
  SEINET200315  Claytonia exigua subsp. exigua J. P. Tracy 1926-4-3 7396 Humboldt Kneeland Prairie local Comment
  UC672985  Claytonia exigua subsp. glauca Joseph P. Tracy 1936-4-26 14801 Humboldt Kneeland Prairie 762 Comment
  HSC100605  Claytonia perfoliata Carl C. Marshall Apr 1886 105 Humboldt Damp places. Comment
  HSC90481  Claytonia perfoliata Jean Hanson 1981-5-10 133 Humboldt Indian Island, Eureka, W end of island Comment
  CHSC93570  Claytonia perfoliata subsp. mexicana Charles E. Fellows 1972-4-29 484 Humboldt 8 mi. e.s.e. of Eureka, 3.1 mi. above town of Freshwater on the w. side of road to Kneeland. Ca. 20 m below road. 609 Comment
  UCD100846  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1318 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC48832  Claytonia rubra subsp. rubra Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 44 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC673000  Claytonia rubra subsp. rubra Joseph P. Tracy 1929-7-4 8617 Humboldt French Camp Ridge 1066 Comment
  HSC23727  Claytonia sibirica Tim Baroni 1971-7-6 124 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  UC852101  Claytonia sibirica Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  CAS-BOT-BC443901  Claytonia sibirica Ira L. Wiggins 1957-6-20 14129 Humboldt East side of highway, Trinidad Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  HSC24332  Claytonia washingtoniana C. E. Fellows 1970-4-19 257 Humboldt 4.5 mi. S of Orick, 1/4 mi. E of Hwy. 101 on old Hwy. 101 Comment
  CAS-BOT-BC92595  Clematis ligusticifolia Henry M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Near Orleans. Comment
  UC1196209  Clematis ligusticifolia Joseph P. Tracy 1922-10-1 6118 Humboldt Van Duzen R. near Carlotta; Northern Coast Ranges, Van Duzen R. 30 Comment
  HSC14260  Clinopodium douglasii Paul Shields Jun 1955 Humboldt 3 mi. N of Weott Comment
  CAS-BOT-BC499338  Clintonia andrewsiana Doris K. Kildale 1928-6-10 5083 Humboldt Strongs Station, Van Duzen River Comment
  UC3541  Clintonia uniflora Mrs. M. H. Manning 1901-1 Humboldt Trinity Summit Comment
  CAS-BOT-BC499963  Clintonia uniflora Doris Kildale 1931-5-10 10688 Humboldt Snow Camp Comment
  CAS-BOT-BC499965  Clintonia uniflora Mrs. H. C. Cantelow 1939-6-5 s.n. Humboldt Near Van Duzen River, 1 1/2 miles west of Dinsmore Comment
  UC30059  Clintonia uniflora Joseph Burtt Davy 1899-6-19 5656 Humboldt Hoopa Mountain Comment
  JEPS26342  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  HSC22862  Collinsia grandiflora D. E. Anderson 1965-4-24 3534 Humboldt Along Titlow Hill Rd. Comment
  UC41804  Collinsia grandiflora W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  HSC44767  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1977-6-19 3457 Humboldt W side of Middle Peak of Mt. Lassic group 1768 Comment
  UC26620  Collinsia linearis Harley P. Chandler Jun 1901 1294 Humboldt Hupa Indian Reservation near Hupa (between The Swag and Hupa); North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC54913  Collinsia linearis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5682 Humboldt North Coast Ranges, Hupa Mountain Hupa Mountain; North Coast Ranges, Hupa Mountain Comment
  UC176057  Collinsia rattanii Joseph P. Tracy 1913-6-17 4190 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC582459  Collinsia rattanii Joseph P. Tracy 1937-5-17 15300 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC100661  Collinsia sparsiflora Carl C. Marshall May 1887 497 Humboldt Kneeland Prairie. Comment
  POM20818  Collinsia sparsiflora var. bruceae Joseph P. Tracy 1916-5-2 4685 Humboldt Garden grown, at Eureka, from seed, my #4242 from lower slopes of Buck Mountain. 762 Comment
  HSC93919  Collinsia sparsiflora var. sparsiflora D. K. Imper 1997-5-5 Humboldt Kneeland Prairie, E of airport runway 854 Comment
  UC879765  Collomia heterophylla Elizabeth Parsons Hawver 1915-6-1 Humboldt Carlotta Comment
  JEPS109809  Collomia tracyi Dean W. Taylor 2004-6-24 19133 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  CAS-BOT-BC157349  Comarum palustre Carl B. Wolf 1927-8-22 775 Humboldt Big Lagoon Comment
  UC1222613  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC40272  Corallorhiza maculata J. D. Ackerman 1976-7-8 772 Humboldt 0.25 mi. E of Hwy. 299 on Chezem Rd. Comment
  HSC34283  Corallorhiza mertensiana Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC27568  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 95 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  HSC37178  Corallorhiza striata Rudolf W. Becking 1976-5-7 Humboldt 1 mi.. E of Blue Lake in Simpson Demonstration Forest, just off Hwy. 299 Comment
  POM312521  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  HSC98916  Cordylanthus tenuis subsp. viscidus Cara Witte 2007-7-11 512 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  CAS-BOT-BC101147  Corethrogyne filaginifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  UC1223039  Corethrogyne filaginifolia Joseph P. Tracy 1947-6-8 17705 Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC725642  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt Little River Comment
Read comments
Sep 29 2006
  POM199566  Corethrogyne filaginifolia var. californica Jos. Burtt Davy 1899-6-30 2185 Humboldt Near Ferndale Comment
  CAS-BOT-BC212019  Cornus nuttallii Carl B. Wolf 1927-8-28 1165 Humboldt In the valley of the Hoopa Indian Reservation. Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  SEINET12137714  Cornus nuttallii F. H. Utech 1988-1 88 -278 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, bluff above Van Duzen River 800 Comment
  CAS-BOT-BC212177  Cornus sericea Joseph P. Tracy 1947-6-26 17747 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  HSC58341  Cornus sericea subsp. sericea Overton, Butler 1979-8-2 12665 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC249598  Cornus sericea subsp. sericea Joseph P. Tracy 1921-9-4 5949 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC210536  Cornus sessilis Doris K. Kildale 1928-7-1 9435 Humboldt Klamath River at Bluff Creek Comment
  HSC6421  Cornus sessilis D. E. Anderson 1963-3-1 2368 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  JEPS50175  Cornus sessilis W. L. Jepson 1902-7-11 2014 Humboldt river bank of S. Fork Trinity R., Martin's Ranch S. Fork Trinity R., Martin's Ranch Comment
  PASA1934  Cornus sessilis Frank W. Peirson 1932-7-7 Humboldt Wild Creek Comment
  JEPS53365  Coronopus didymus Lincoln Constance 1934-6-18 902 Humboldt border of N. Dyerville Flat, near South Fork Rail Road Station and Post Office, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  UC1175128  Corylus californica P. C. Everett and E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek (Hwy 96 from Orleans to Weitchpec) 121 Comment
  UC198569 Image available Corylus californica Joseph P. Tracy 1917-9-2 4842 Humboldt Grouse Mountain Northern Coast Ranges; Grouse Mt., Humboldt Co. 1524 Comment
  CAS-BOT-BC172849  Corylus cornuta subsp. californica Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  RSA46829  Corylus cornuta var. californica Doris K. Kildale 1926-9-5 2638 Humboldt On trail between Goat Camp and Red Peak. 1616 Comment
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Jan 24 2013
  SEINET12034008  Corylus cornuta var. californica J. P. Tracy 1951-1 19624 Humboldt along Van Duzen at Blue Slide 91 Comment
  UC1199280  Cotula australis J. P. Tracy 1901-3-16 994 Humboldt Eureka Comment
  SEINET3817862  Cotula coronopifolia Steve R. Johnson 1965-3-12 1 Humboldt 1 mile north of luffenholtz beach Comment
  HSC104401  Crataegus gaylussacia Jim McIntosh 2012-5-22 Humboldt Klamath Mountains; southern Siskiyou Mtns., adjacent to north side of State Route 169 at Milepost 22.09; 200 ft. above Klamath River. 96 Comment
  CAS-BOT-BC376515  Crepis Volney Rattan 1867-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC290340  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC291488  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  UC1199457  Crepis capillaris Joseph P. Tracy 1948-8-22 18104 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  CAS-BOT-BC290587  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 mi. south of Fortuna Comment
  HSC5927  Crepis capillaris J. L. Baker 1965-4-13 46 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  UC1223028  Crepis occidentalis Joseph P. Tracy 1951-6-26 19575 Humboldt Twin Lakes vicinity Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  RSA263019  Crocosmia aurea Bennett, Dunn, Dziekanowski 1976-8-6 477 Humboldt By Highway 101, north side of Orick 30 Comment
  HSC62776  Crocus speciosus M. Dean Griswold Jr. 1979-4-28 34 Humboldt W side of old Hwy. 101 Comment
  BLMAR759  Cryptantha Jennifer Wheeler 2015-5-12 759 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC54746  Cryptantha leiocarpa Harley P. Chandler May 1901 1144 Humboldt Samoa North Coast Ranges, Humboldt Bay 3 Comment
  UC1239652  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3895 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  HSC55114  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 11879 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UCSB24349  Cuscuta subinclusa Tracy, Joseph 1924-7-20 Humboldt Brannan Mt.; on Willow Cr. Road 1005 Comment
  UC54747  Cynoglossum grande Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5428 Humboldt between Hubbard's Station and Elk Prairie; North Coast Ranges Comment
  CAS-BOT-BC190371  Cynosurus cristatus Peter H. Raven; R. Snow 1958-7-21 13657 Humboldt 2.0 miles north of Cape Mendocino. Comment
  CAS-BOT-BC190425  Cynosurus echinatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UCD60186  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  RSA54135  Cyperus bipartitus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  HSC7216  Cyperus eragrostis J. P. Tracy 1935-7-17 14099 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC70542  Cystopteris fragilis Ira L. Wiggins 1957-6-21 14138 Humboldt E side of road, 1 mi. S of Garberville Comment
  CAS-BOT-BC201009  Cytisus scoparius John H. Thomas 1966-3-19 11484 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  CDA4057  Cytisus scoparius T. C. Fuller 1961-3-22 5940 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  HSC74563  Dactylis glomerata M. A. Baker 1980-5-17 1244 Humboldt Near Le Perron Peak 1066 Comment
  HSC75740  Dactylis glomerata Bill Copeland 1980-6-26 305 Humboldt Near Murphy Meadow 914 Comment
  CAS-BOT-BC189734  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  CAS-BOT-BC189747  Danthonia californica A. A. Beetle 1942-6-2 3474 Humboldt 3 miles north of Bridgeville. 457 Comment
  HSC9552  Danthonia californica J. P. Tracy 1927-7-4 8234 Humboldt Lone-Star Creek, Iagua. 610 Comment
  SEINET200654 Image available Danthonia californica Joseph P. Tracy 1908-6-9 2673 Humboldt Kneeland Prairie 762 Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UC552803  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt McKay Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC194370  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  JEPS12210  Datura stramonium W. L. Jepson 1932-7-29 16436 Humboldt Dyerville 88 Comment
  HSC71592  Daucus carota M. A. Baker 1980-6-26 2403 Humboldt Near Sims Creek 610 Comment
  SEINET5208465  Delphinium decorum Unknown 1930-5-25 0789 Humboldt Laribee Valley, on open hillsides Comment
  UC427876  Delphinium decorum subsp. tracyi H. E. Parks and J. P. Tracy 1930-5-25 789 Humboldt Laribee Valley 914 Comment
  UC503043  Delphinium decorum subsp. tracyi Joseph P. Tracy 1927-6-12 8160 Humboldt lower slopes Northern Coast Ranges, Horse Mountain 1219 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
  UC1196321  Delphinium decorum subsp. tracyi Joseph P. Tracy 1908-6-9 2649 Humboldt open places near hilltops Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC467723  Delphinium decorum subsp. tracyi Mrs. M. H. Manning 1902-3-31 Humboldt open gravelly place across supply creek <on> west side of road Hupa Comment
  RSA304854  Delphinium gracilentum James R. Shevock 1971-5-29 643 Humboldt Trinity Hwy. 457 Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  HSC25012  Delphinium nudicaule Eugene Andreuccetti 1964-5-2 38 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  HSC45097  Delphinium nudicaule R. Sutherland 1978-4-24 13 .24478 Humboldt Kinsey Ridge 311 Comment
  UC184715  Delphinium nudicaule Joseph P. Tracy 1913-6-14 4128 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC1126089  Delphinium trolliifolium A. E. Wieslander 1931-5-21 210 Humboldt Kneeland China Flat Quadrangle Comment
  JEPS102996  Delphinium trolliifolium R. Raiche, K. Zadnik, and H. Forbes 1991-6-13 136 Humboldt 39 mi E of Rio Dell (on Hwy 36) 896 Comment
  UC1196344  Delphinium trolliifolium Joseph P. Tracy 1911-7-12 3525 Humboldt on summit between Berry's (on Redwood Creek) and Three Creeks; Northern Coast Ranges 1097 Comment
  UC503045  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  CDA14362  Deschampsia cespitosa P. Haggard 1996-7-8 s.n. Humboldt North Coast; North Coast Railroad right-of-way, Eureka. 0 Comment
  SEINET200651  Deschampsia cespitosa J. P. Tracy 1934-7-20 13465 Humboldt Big Lagoon 6 Comment
  UCD61383  Deschampsia cespitosa Peter Haggard 1996-7-8 Humboldt North Coast Railroad right-of-way, Eureka. Comment
  SEINET4566835  Deschampsia cespitosa J. Davy, W. Blasdale 1899-1 6213 Humboldt Eureka Comment
  BLMAR534  Deschampsia danthonioides Jennifer Wheeler 2009-6-23 534 Humboldt King range, On King Peak road Comment
  BLMAR267  Deschampsia elongata Jennifer Anthony-Wheeler 1999-6-16 267 Humboldt Headwaters Forest Reserve, growing near beginning of wildlife rd 524 Comment
  HSC76544  Deschampsia elongata Teresa Prendusi 1981-7-7 120 Humboldt Near Slate Creek Butte. 1158 Comment
  POM207194  Deschampsia elongata Joseph P. Tracy 1901-4-26 1043 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1541537  Deschampsia elongata Harold E. Parks September 1928 172 Humboldt Big Lagoon Comment
  UC38482  Deschampsia elongata Harley P. Chandler May, 1901 1175 b Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 54 Comment
  UC552755  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UCD63594  Deschampsia elongata A. H. Shunk 1923-7-21 Humboldt Bridgeville. Comment
  SEINET11682989  Deschampsia elongata K. S. Erdman 1970-1 4813 Humboldt Fern Canyon at mouth of Home Creek, Prairie Creek State Park (Redwood N.P.) Comment
  HSC37421  Dicentra formosa Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 514 Humboldt Along Lost Man Creek. 38 Comment
  UC1362285  Dicentra formosa Kingsley R. Stern 1964-6-15 2108 Humboldt ca 2.5 mi s Fortuna (0.5 mi e on Drake Hill Road, on Newman property) Comment
  UC1362290  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  HSC99853  Dicentra formosa subsp. oregana Gail Newton 1980-6-17 203 Humboldt Near Onion Mtn. 217 Comment
  RSA92450  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC208955  Dichanthelium oligosanthes subsp. scribnerianum Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  UC1005674  Dichelostemma capitatum Frank W. Gould 1939-5-30 838 Humboldt about 25 mi due e Eureka (near top of Horse Mountain); Horse Mountain 1100 Comment
  UC1198165  Dichelostemma capitatum Joseph P. Tracy 1922-4-30 5995 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC95583  Dichelostemma capitatum subsp. capitatum Andrea Pickart 2002-5-13 99 Humboldt Lamphere Dunes, Humboldt National Wildlife Refuge Comment
  HSC3035  Dichelostemma ida-maia Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC98727  Dichelostemma ida-maia Cara Witte 2007-7-20 555 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC30062  Dichelostemma ida-maia Mrs. M. H. Manning May 1901 6 Humboldt near Hupa Comment
  UC666911  Dichelostemma ida-maia Joseph P. Tracy 1927-5-30 8083 Humboldt Garberville 152 Comment
  CAS-BOT-BC501019  Dichelostemma ida-maia L. R. Abrams 1918-6-16 7135 Humboldt Willow Creek Comment
  RSA53854  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across river from Orleans. Comment
  HSC31223  Dichelostemma multiflorum D. E. Anderson 1972-6-20 5724 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS11293  Digitalis purpurea W. L. Jepson 1902-6 1918 Humboldt near Eureka 12 Comment
  SEINET12269089  Digitalis purpurea K. S. Erdman 1970-1 4770 Humboldt Counts Hill Prairie on Bald Hill Rd Se of Orick 13 mi 853 Comment
  UC198609  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  SEINET200657 Image available Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  UCD64093  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC150338  Diplacus aurantiacus Doris K. Kildale 1927-5-15 3244 Humboldt Petrolia, back of Mattole River Comment
  CAS-BOT-BC150349  Diplacus aurantiacus L. R. Abrams 1916-7-18 6141 Humboldt At Trinidad Comment
  POM188116  Disporum smithii Marcus E. Jones 1931-7-14 29227 Humboldt South of Eureka Comment
  UC666968  Disporum smithii Joseph P. Tracy 1933-5-21 12209 Humboldt McClellan Mountain 670 Comment
  CAS-BOT-BC208658  Distichlis spicata Malcom A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Salt marshes around Fields Landing Comment
  CHSC24852  Dodecatheon hendersonii A. D. Launer 1976-4-10 2 Humboldt On s bank of Conley Cr, 100 yds n of forks of Conley Cr, ca. 1.5 mi e of Church St. in Blocksburg. 487 Comment
  HSC97460  Dodecatheon hendersonii C. Witte 2007-5-8 13 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC179965  Dodecatheon jeffreyi Joseph P. Tracy 1914-7-4 4535 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC180234  Drosera rotundifolia Joseph P. Tracy 1914-9-6 4601 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC1198694  Drymocallis glandulosa Joseph P. Tracy 1910-6-19 3154 Humboldt region about Humboldt Bay (near Forks of Elk River); Northern Coast Region, near Forks Elk River 0 Comment
  UC154520  Drymocallis glandulosa var. reflexa Harley P. Chandler June, 1901 1425 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  CAS-BOT-BC70871  Dryopteris arguta Doris K. Kildale 1926-7-22 2415 Humboldt near Canyon Park Comment
  UC528082  Dryopteris arguta Ira L. Wiggins 1932-6-18 5872 Humboldt hillside at mouth of Little River Comment
  JEPS35162  Dryopteris expansa Lincoln Constance 1934-6-3 811 Humboldt S Fork Eel River; Bull Creek region Comment
  POM118351  Dryopteris expansa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
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Dec 31 2015
  CAS-BOT-BC113802  Dulichium arundinaceum Joseph Prince Tracy 1938-9-25 16173 Humboldt Dense masses in shallow water, Bald Mountain, at Lake Prairie. 1066 Comment
  UC34075  Echinochloa crus-galli J. P. Tracy 1900-11-1 973 Humboldt immediate vicinity Eureka 0 Comment
  UCD60826  Echinochloa crus-galli George Branstetter 1926-8-12 Humboldt Alton. Comment
  SEINET11972028  Echinocystis lobata J. P. Tracy 1951-1 19402 Humboldt Barry Ridge, Kneeland Prairie 762 Comment
  HSC7305  Eleocharis acicularis J. P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie 61 Comment
  RSA275279  Eleocharis acicularis var. acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Pond above Alder Springs 1585 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  UC213331  Eleocharis macrostachya Joseph P. Tracy 1920-8-29 5396 Humboldt Little River, borders of lagoon Northern Coast Ranges 6 Comment
  HSC7343  Eleocharis pachycarpa D. E. Anderson 1961-9-9 1785 Humboldt Along Hwy. 101 Comment
  HSC77865  Eleocharis parvula L. J. Heflin 1984-5-13 5 Humboldt Hauser Marsh Comment
  CAS-BOT-BC197347  Elymus L. R. Abrams 1918-6-16 7137 Humboldt Willow Creek Comment
  SEINET201036  Elymus elymoides subsp. brevifolius Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit 1829 Comment
  HSC1804  Elymus glaucus William J. Ferlatte, B. D. Rogers 1966-6-15 2107 Humboldt Larabee Valley 762 Comment
  HSC9706  Elymus glaucus E. W. Styskel 1964-5-17 90 Humboldt 1.5 miles SE of Redcrest along Hwy. 101. Comment
  UC38141  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5878 Humboldt Martin's Ferry Comment
  UCD61827  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt North end of Luke Prairie. California Forest and Range Experiment Station. 350 Comment
  UCD62280  Elymus glaucus R. Tofsrud 1947-6-29 194 Humboldt About 3 mi. N of Harris on road to Alder Point. Comment
  POM295816  Elymus glaucus subsp. virescens Lyman Benson 1929-7-19 1856 Humboldt Dyerville to Matole River. Comment
  RSA86744  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  SEINET4683795  Elymus mollis D. A. Haskell 1966-4-23 26 Humboldt Coastal strand sand dunes near the town of Sa-; 0 Comment
  HSC58419  Elymus multisetus Griswold, Butler 1979-7-12 7265 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC74674  Elymus multisetus Gail Newton 1981-7-23 2269 Humboldt Near Bug Creek Butte 1494 Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  UC552771  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-6-27 11049 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  UC573853  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt near Burr Valley; South Fork Pk. Quadrangle Comment
  SACT001159  Elymus vancouverensis Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka. Comment
  HSC49812  Empetrum nigrum R. York 1979-4-13 220 Humboldt Elks Head, 1 mi. N of Trinidad Comment
  RSA0049661  Enemion stipitatum Dean Wm. Taylor 2011-5-4 21117 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junciton with Highway 36 734 Comment
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May 17 2019
  CDA30232  Epilobium brachycarpum M. K. Beyers, I. Shepardson 2009-9-13 257 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC1198491  Epilobium brachycarpum Joseph P. Tracy 1900-9-10 964 Humboldt near Hydesville; Northern Coast Region, Yager bar 60 Comment
  BLMAR386  Epilobium canum subsp. latifolium Jennifer Anthony-Wheeler 2004-9-1 386 Humboldt Horse Mtn, Growing along titlow hill road 18+ miles 1584 Comment
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  HSC74686  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2452 Humboldt Near Board Camp Mtn. 1478 Comment
  UC1197007  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1914-9-6 4605 Humboldt between High Prairie and Snow Camp (in peat bog); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  HSC39527  Epilobium minutum Thomas W. Nelson 1976-6-14 2709 Humboldt S of Lassic Peak 1524 Comment
  RSA256576  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC1198479  Epilobium minutum Joseph P. Tracy 1933-7-25 12839 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC96280  Epilobium minutum Eric Schori, Kazuyuki Ishimaru 2005-6-15 13 Humboldt About 18 mi. S of Hwy. 299 1400 Comment
  UC1196956  Epilobium septentrionale Joseph P. Tracy 1936-6-9 14901 Humboldt Mattole R. 3 mi. e. Petrolia; North Coast Region, Mattole R. 15 Comment
  POM290911  Epipactis gigantea Lyman Benson 1928-7-11 493 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  HSC36242  Equisetum arvense John Rehling 1975-5-12 73 Humboldt Near S end of Big Lagoon, growing along Hwy. 101 Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC100383  Equisetum telmateia Carl C. Marshall Apr 1886 174 Humboldt Everywhere. Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  RSA44365  Eragrostis mexicana subsp. virescens Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  UC249801  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1923-9-10 6545 Humboldt Trinity River Valley near South Fork; Northern Coast Ranges, Trinity River Valley, nr South Fork 182 Comment
  CHSC68552  Erechtites glomeratus Vernon H. Oswald 1997-4-29 8350 Humboldt Humboldt Bay NWR, levee north of Long Pond along the arm of South Humboldt Bay separating Teal Island from the main part of the refuge. Comment
  CDA4547  Erechtites glomeratus M. A. Hart 1957-8-9 157 -57 Humboldt Between Eureka and Areata. 0 Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC98024  Erigeron aliceae Cara Witte 2007-7-11 509 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  HSC100430  Erigeron canadensis Carl C. Marshall Oct 1886 347 Humboldt Near North Fork. Comment
  JEPS41518  Erigeron foliosus var. confinis Harley P. Chandler 1901-6-1 1427 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  SEINET11859406  Erigeron foliosus var. confinis J. P. Tracy 1947-7-5 17785 Humboldt Trinity Summit, ridge top 1 mi W of Mud Springs Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  HSC39954  Erigeron glaucus Linda M. Barker 1976-6-22 1616 Humboldt 3 mi. W of Arcata Comment
  POM261503  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head Comment
  POM56125  Erigeron glaucus Joseph P. Tracy 1918-7-1 4972 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape. 3 Comment
  POM56121  Erigeron inornatus var. biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC56930  Erigeron inornatus var. inornatus G. L. Clifton, Butler 1979-7-26 9359 Humboldt Near Salmon Mtn., close to the town of Forks of the Salmon 1935 Comment
  UC34630  Erigeron inornatus var. inornatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC5562  Erigeron inornatus var. inornatus M. H Manning 1901-7-25 311 Humboldt Bald Hill near Hoopa Comment
  HSC74492  Erigeron klamathensis M. A. Baker 1980-7-24 3208 Humboldt Near Orleans Mtn. 1625 Comment
  HSC39180  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 - 1221 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC71370  Erigeron philadelphicus J. P. Smith 1973-5-26 6843 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  POM288818  Erigeron philadelphicus Lyman Benson 1928-7-10 382 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  JEPS41377  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-8 16723 Humboldt Benbow, s Humboldt County South Fork Eel River, Benbow Comment
  UC1223010  Erigeron robustior Joseph P. Tracy 1942-7-4 17370 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC1199399  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1918-6-23 4959 Humboldt Boynton Prairie Road near the Carroll Place (around Humboldt Bay); North Coast Ranges, Fickle Hill 304 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
  HSC55020  Eriogonum compositum Overton, Butler 1979-7-31 11429 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC70699  Eriogonum compositum Gail Newton 1980-7-15 1553 Humboldt Near Sims Mtn. 1311 Comment
  HSC73670  Eriogonum compositum M. A. Baker 1980-7-15 2953 Humboldt Near Whiting Ridge. 1341 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  UCR37906  Eriogonum compositum D. K. Imper 1982-7-2 1411 Humboldt Near Connely Creek, N Fork 1493 Comment
  UC183632  Eriogonum compositum var. compositum Joseph P. Tracy 1913-6-22 4262 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Van Duzen River valley 762 Comment
  CAS-BOT-BC259158  Eriogonum latifolium Milo S. Baker 1927-8-16 2453 a Humboldt Samoa Comment
  RSA331968  Eriogonum latifolium Dave Kelly 1985-7-28 4064 Humboldt Near Manila, Samoa Peninsula near Eureka. Comment
  SD38692  Eriogonum latifolium Edith A. Purer 1932-7-30 4669 Humboldt South of Orick, sand dunes Comment
  HSC55268  Eriogonum nudum Overton, Butler 1979-8-2 12638 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA44500  Eriogonum nudum var. nudum H. M. Pollard 1947-8-22 s.n. Humboldt Klamath River bed near Fontana's Fishing Lodge, Orleans region Comment
  CAS-BOT-BC269864  Eriogonum nudum var. pubiflorum V. Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  HSC38618  Eriogonum nudum var. pubiflorum D. E. Anderson, J. P. Smith 1971-6-21 1113 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  UC54703  Eriogonum nudum var. pubiflorum Harley P. Chandler June, 1901 1468 Humboldt Klamath River North Coast Ranges, Klamath River 365 Comment
  CAS-BOT-BC267925  Eriogonum umbellatum David Imper 1981-8-12 907 Humboldt Near Tish Tang A Tang Creek, Salmon Mt. Quad 1779 Comment
  UC1198156  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8949 Humboldt near Blake Lookout (along summit of South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  UCD49867  Eriophorum crinigerum Frederic Hrusa 1993-6-17 11228 Humboldt Red mountain. N side of mountain. 350 Comment
  HSC28146  Eriophyllum lanatum Chris Gist 1971-6-19 36 Humboldt 3 mi. in on Titlow Hill Rd. from California State Hwy. 299, Horse Mtn. Comment
  UC165189  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1908-6-7 2609 Humboldt bluffs on river at mouth of Maple Creek; Northern Coast Ranges, Mad River 152 Comment
  BLMAR631  Eriophyllum lanatum var. arachnoideum Jennifer Wheeler 2011-6-15 631 Humboldt Lacks Creek, Bair road Comment
  CAS-BOT-BC301181  Eriophyllum lanatum var. arachnoideum Doris K. Kildale 1927-6-25 3541 Humboldt Shelter Cove Comment
  POM288402  Eriophyllum lanatum var. grandiflorum Lyman Benson 1929-7-14 1801 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  HSC57433  Erysimum perenne G. L. Clifton, Terry Griswold 1979-7-26 10219 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  CAS-BOT-BC383042  Erythranthe grandis David B. Lowry 2005-5-14 BSR Humboldt Along Blue Slide Road, just north of the intersection with Bluff road 17 Comment
  HSC44353  Erythronium californicum Brad Klipfel 1974-5-8 319 Humboldt Horse Mountain Comment
  JEPS61844  Erythronium californicum Joseph P. Tracy May 1918 Humboldt Eureka Comment
  SEINET3991734  Erythronium californicum Unknown 1918-5-1 4897 Humboldt Kneeland Prairie 762 Comment
  UCD139632  Erythronium californicum Roman Gankin; W. R. Hildreth 1966-3-15 699 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  CAS-BOT-BC504309  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt Top of Horse Mountain 1219 Comment
  HSC15491  Erythronium californicum Paul Shields May 1955 Humboldt 12 mi. W of Willow Creek Comment
  HSC48836  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 29 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC32040  Erythronium oregonum subsp. leucandrum A. M. Montalvo, J. D. Ackerman 1974-4-14 172 Humboldt Chezem Rd. near intersection with Hwy. 299 just W of Redwood Creek Comment
  CHSC110754  Erythronium revolutum Dean Wm. Taylor 2011-5-4 21120 Humboldt South Coast Ranges. Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  POM169641  Erythronium revolutum H. P. Chandler 1901-06 1279 Humboldt Hupa Indian Reservation Comment
  UC1134597  Erythronium revolutum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  UC146200  Erythronium revolutum Joseph P. Tracy 1908-6-9 2661 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC159113  Erythronium revolutum J. P. Tracy May, 1911 Humboldt Kneeland Prairie Comment
  UC204827  Euchiton gymnocephalus Joseph P. Tracy 1918-6-23 4958 Humboldt near Carroll place (Boynton Prairie road, around Humboldt Bay); Northern Coast Ranges, Humboldt Bay, Boynton Prairie 304 Comment
  HSC49682  Euchiton sphaericus J. O. Sawyer 1977-7-1 2990 Humboldt Aikens campground. Comment
  UC1540456  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  CAS-BOT-BC310496  Euchiton sphaericus John Thomas Howell 1936-8-29 12888 Humboldt Eel River 16 miles n. of Garberville Comment
  UC1198970  Euphorbia crenulata Joseph P. Tracy 1912-8-1 3960 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  POM282192  Euphorbia lathyris Lyman Benson 1928-7-12 474 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1198982  Euphorbia spathulata Joseph P. Tracy 1947-5-10 17678 Humboldt near Briceland 457 Comment
  UC1198979  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  UC535703  Euthamia occidentalis Eleanor Armstrong 1934-8-16 1150 Humboldt Richardson Grove 121 Comment
  UC581767  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt Northern Coast Ranges, Trinity River Valley; Lack Pond, opposite mouth of Willow Creek 152 Comment
  HSC31183  Festuca californica D. E. Anderson 1972-6-20 5752 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC98939  Festuca californica var. californica Cara Witte 2008-7-14 901 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC1103703  Festuca elmeri Joseph P. Tracy 1942-5-16 17339 Humboldt Garberville 152 Comment
  UC70827  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5676 Humboldt Hoopa Mt. Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC98580  Festuca occidentalis Cara Witte 2007-5-23 95 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1391 Comment
  BLMAR400  Festuca rubra Jennifer Anthony-Wheeler 2005-6-29 400 Humboldt South Spit, salt marsh variant 6 Comment
  BLMAR435  Festuca rubra Jennifer Anthony-Wheeler 2008-6-18 435 Humboldt Samoa/Malel Dunes 9 Comment
  HSC9976  Festuca rubra J. A. Waller 1965-5-21 26 Humboldt Near Big Lagoon Comment
  RSA126631  Festuca rubra H. S. Yates 1936-6-17 5691 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UCD66353  Festuca rubra H. S. Yates 1936-6-17 5694 Humboldt Lower N. W. slope of Buck Mt. 792 Comment
  UCD66355  Festuca rubra H. S. Yates 1936-6-16 5672 Humboldt 1 mile N.E. of Samoa. 3 Comment
  CAS-BOT-BC453519  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  HSC18619  Fragaria chiloensis D. E. Anderson 1962-3-30 1954 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC18636  Fragaria vesca S. S. Stutz 1963-3-24 14 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC44279  Fragaria vesca D. L. Goforth 1977-4-23 4 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS44672  Fragaria vesca Joseph P. Tracy 1932-7-15 10578 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UCSB22388  Fragaria vesca Jensen, Karen 1965-4-14 Humboldt Trinidad State Park 15 Comment
  CAS-BOT-BC457928  Fragaria vesca subsp. californica Doris Kildale Gillespie 1980-5-10 656 Humboldt Shelter Cove, At base of coastal bluffs of Western beach, Point Delgada; Coastal Marine Terrace & Coastal Bluff 4 Comment
  CAS-BOT-BC52738  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  SD22835  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC59965  Frangula purshiana A. A. Heller 1923-7-9 13775 Humboldt About 5 mi. e. of Arcata on the road to Blue Lake. Comment
  CAS-BOT-BC59992  Frangula purshiana Doris K. Kildale; J. W. Gillespie 1929-6-25 8394 Humboldt Pive's Pasture, Eureka. Comment
  CAS-BOT-BC59994  Frangula purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt Trinity Summit. On ridge 2 mi. e. of Grove's Prairie. 1524 Comment
  HSC18419  Frangula purshiana T. M. Mingo May 1965 Humboldt 2 mi N of Trinidad Comment
  UCD112832  Frangula purshiana T. I. Storer 1931-7-1 2219 Humboldt northwest coast of county. Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  SEINET6694687 Image available Fraxinus oregona Joseph P. Tracy 1922-1 6060 Humboldt South Yager Creek Valley 762 Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC275325  Fumaria officinalis Joseph P. Tracy 1924-5-17 6679 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC1222498  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  HSC26464  Galium aparine T. O. Osborne 1970-5-17 17 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC70965  Galium bolanderi Gail Newton 1980-7-15 1583 Humboldt Near Sims Mtn. 431 Comment
  HSC98081  Galium bolanderi Cara Witte 2007-7-3 415 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  HSC37909  Galium divaricatum Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC31221  Galium muricatum D. E. Anderson 1972-6-20 5727 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS21476  Galium muricatum Francia Chisaki and Gene B. Newcomb 1958-6-23 1164 Humboldt on road to Shelter Cove 4 mi e of its junction with road to Ettersburg; on road to Shelter Cove 579 Comment
  UC176990  Galium parisiense Joseph P. Tracy 1913-4-27 4042 Humboldt Eureka Comment
  UC602541  Galium parisiense Joseph P. Tracy 1913-6-10 4083 Humboldt below Bridgeville (on river); Northern Coast Ranges, Van Duzen River, Rogers Ranch 152 Comment
  HSC67841  Galium parisiense J. P. Smith 1971-10-9 5029 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC90645  Galium trifidum Gail Newton 1982-6-1 3570 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC76673  Galium trifidum var. pacificum Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  HSC98710  Galium triflorum Cara Witte 2007-7-20 562 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  CAS-BOT-BC303391  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  HSC73064  Garrya buxifolia M. A. Baker 1980-6-16 1949 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC188531  Garrya elliptica Doris K. Kildale 1925-5-25 6043 Humboldt Eureka Slough, Eureka Comment
  CAS-BOT-BC188546  Garrya elliptica Doris K. Kildale 1926-1-3 1464 Humboldt Big Lagoon road near Trinidad Comment
  CAS-BOT-BC188550  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt Immediate vicinity of Eureka 152 Comment
  CHSC19502  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W. M. Lanphere's ranch 9 Comment
  LA40298  Garrya elliptica H. E. Parks; February 1933 - March 1933 4287 Humboldt Trinidad Comment
  UC21582  Garrya elliptica W. C. Blasdale 1896-6-3 Humboldt Eureka; w Eureka Comment
  UC1051597  Garrya fremontii Joseph P. Tracy 1948-9-12 18214 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  CAS-BOT-BC282613  Gastridium phleoides L. R. Abrams 1916-7-11 6025 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC282615  Gastridium phleoides Henry M. Pollard 1944-9-17 s.n. Humboldt Near Orleans Comment
  SEINET11677850  Gastridium phleoides H. P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  UC589848  Gastridium ventricosum H. S. Yates 1936-6-23 5877 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  HSC7812  Gaultheria shallon J. Pursell 1964-11-1 1111 Humboldt Hoopa Valley Hwy. 96 Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  HSC98344  Gaultheria shallon Jimerson, J. Pageau 1979-6-12 531 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  POM118415  Gaultheria shallon Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC21946  Gaultheria shallon unknown 1894-8-6 Humboldt Eureka Comment
  UCD117455  Gaultheria shallon D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  OBI14456  Gaultheria shallon H. E. McMinn 1931-6-27 2533 Humboldt Summit above Weitchpec Comment
  POM214928  Gayophytum heterozygum Joseph P. Tracy 1932-7-12 10456 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  JEPS47021  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562302  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC179955  Geranium carolinianum Joseph P. Tracy 1914-5-14 4436 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC1198953  Geranium core-core J. P. Tracy 1911-6-11 3239 Humboldt Trinidad 91 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  HSC8651  Geranium molle R. T. Forester 1963-4-30 17 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  RSA600894  Geranium molle Louis C. Wheeler 1959-8-2 7622 Humboldt Shelter Cove. Comment
  HSC59612  Geum macrophyllum J. P. Smith, Steve Selva 1970-6-30 4121 Humboldt Comment
  POM188372  Gilia capitata Marcus E. Jones 1931-6-16 s.n. Humboldt Junction East of Arcata Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  UC179953  Gilia capitata subsp. capitata Joseph P. Tracy 1914-7-5 4550 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  UC133633  Gilia capitata subsp. pacifica Joseph P. Tracy 1907-7-4 2583 Humboldt sandy hillside of coast bluffs between Trinidad and mouth Little River; Northern Coast Ranges, btw Trinidad and Little River 30 Comment
  HSC40933  Gilia millefoliata Linda M. Barker 1976-6-1 1549 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC23729  Gilia millefoliata Harley P. Chandler May, 1901 1135 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  JEPS79894  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 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
  HSC70953  Githopsis specularioides R. York 1980-5-17 522 Humboldt Near Le Perron Peak 792 Comment
  HSC17914  Glaux maritima D. E. Anderson 1962-5-10 2207 Humboldt Lanphere's Comment
  POM319204  Glaux maritima Patricia Wilder 1968-8-21 4412 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CAS-BOT-BC218429  Glehnia littoralis subsp. leiocarpa A. A. Heller 1924-7-24 13882 Humboldt Dunes at Humboldt County camp 7 miles south of Trinidad Comment
  HSC74696  Glyceria elata Gail Newton 1981-7-23 2286 Humboldt Near Bug Creek Butte. 1350 Comment
  UC207736  Glyceria elata Joseph P. Tracy 1916-6-25 4748 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges, Redwood Creek 152 Comment
  UCD66777  Glyceria occidentalis A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3461 Humboldt Loleta Swamp, south of Eureka. Comment
  UC195428  Glycyrrhiza lepidota Joseph P. Tracy 1915-9-12 4668 Humboldt Laribee Creek Northern Coast Ranges, Eel River (mouth, fields along river) 30 Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  POM257415  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-1 24026 Humboldt Spruce Cove, Trinidad. Comment
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  UC164842  Gnaphalium palustre Joseph P. Tracy 1911-7-7 3383 Humboldt 3 m nw of junction with Trinity River Willow Creek (at meadow on mountainside, near Beebs Ranch); Northern Coast Ranges, , Trinity River 914 Comment
  SEINET11849517  Gnaphalium purpureum Unknown 1936-1 13397 Humboldt near Garberville Comment
  HSC76552  Goodyera oblongifolia Teresa Prendusi 1981-7-7 126 Humboldt Near Slate Creek Butte. 1158 Comment
  UC1196436  Goodyera oblongifolia Edith and Ethel Tracy 1900-7-31 910 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  POM225484  Goodyera oblongifolia Philip A. Munz 1936-8-10 14336 Humboldt Van Duzen River, 15 miles east of Fortuna Comment
  RSA12431  Gratiola ebracteata Carl B. Wolf 1934-7-2 5863 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  CAS-BOT-BC304736  Grindelia hirsutula Doris K. Kildale 1926-6-25 2172 Humboldt Big Lagoon Comment
  CAS-BOT-BC304741  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  HSC2098  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  HSC5697  Grindelia hirsutula D. E. Anderson 1963-5-25 2483 Humboldt 2-3 mi. N of Capetown Comment
  JEPS2620 Image available Grindelia hirsutula H. N. Bolander 1860-1 6493 Humboldt seashore near Big Flat; ; Near Big Flat, Humboldt Co. Comment
  UC1093969  Grindelia hirsutula Herbert L. Mason 1932-7-21 7100 Humboldt Big Lagoon Big Lagoon Comment
  UC1196597  Grindelia hirsutula Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC57431  Hackelia micrantha G. L. Clifton, Griswold 1979-7-26 10209 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC3670  Hackelia setosa J. P. Tracy 1937-7-25 15547 Humboldt Trinity Summit; on ridge 2 mi. E of Grove's Prairie 1524 Comment
  HSC102116  Hastingsia alba M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1020 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58066  Hastingsia alba G. L. Clifton, Griswold 1979-8-1 11944 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC58345  Helenium bigelovii Overton, Butler 1979-8-2 12673 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC582669  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt wet meadow at McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC306864  Helenium bolanderi Doris K. Kildale 1926-7-16 2384 Humboldt Big Lagoon Comment
  RSA246777  Helenium bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35286 Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC306871  Helenium bolanderi L. R. Abrams; R. Bacigalupi 1922-6-25 8261 Humboldt Between Trinidad and Big Lagoon Comment
  HSC35869  Helenium bolanderi Thomas W. Nelson, James Nelson 1975-8-5 2125 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  BLMAR560  Helenium puberulum Jennifer Wheeler 2009-7-21 560 Humboldt Headwaters Forest Reserve, wet depression along trail north of Falk 60 Comment
  HSC25943  Helenium puberulum Thomas W. Nelson 1970-10-31 293 Humboldt Eel River near N end of the Scotia Bluff. Comment
  CAS-BOT-BC305849  Helminthotheca echioides F. J. Kirby 1958-7-1 s.n. Humboldt Near Bridgeville 304 Comment
  HSC63147  Hemitomes congestum M. A. Baker 1979-6-30 972 Humboldt Top of ridge 1400 Comment
  HSC57209  Hemizonella minima Griswold, Butler 1979-7-12 7189 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1199118  Hemizonella minima Joseph P. Tracy 1934-6-27 13262 Humboldt top of ridge 2 mi s top of mountain; North Coast Ranges, Horse Mountain 1432 Comment
  CAS-BOT-BC306080  Hemizonia congesta subsp. clevelandii H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  UC249805  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6337 Humboldt near Briceland; Northern Coast Ranges 304 Comment
  UC495621  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Chaparral Mt., Three Cabins 457 Comment
  HSC98091  Heterocodon rariflorum Cara Witte 2007-7-11 476 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  SEINET10460687  Heterocodon rariflorum Lincoln Constance Constance 915 Humboldt GRASSHOPPER PEAK 3000 Comment
  HSC79434  Heuchera micrantha Kenneth Clark 1981-4-5 1228 Humboldt Above S fork Dead Man's Gulch 114 Comment
  SEINET200860  Heuchera micrantha J. P. Tracy 2865 Humboldt Valley of Van Duzen River opposite Buck Mt 762 Comment
  JEPS49746  Heuchera micrantha var. diversifolia Harley P. Chandler May 1901 1231 Humboldt North Coast Ranges 457 Comment
  HSC48819  Hieracium albiflorum Brad Klipfel 1973-7-31 232 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS36594  Hieracium albiflorum Lincoln Constance 1934-5-29 736 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  SJSU2550  Hieracium albiflorum H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  HSC95113  Hieracium albiflorum Andrea Pickart 2002-6-30 130 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  SEINET11847768  Hieracium bolanderi J. P. Tracy 1947-1 17849 Humboldt Horse Mountain Comment
  HSC58147  Hieracium greenei Muth 1979-8-1 12190 Humboldt Near Red Cap Prairie 1781 Comment
  HSC6594  Hirschfeldia incana P. W. Shields 1955-9-29 Humboldt 0.5 mi. S of Fernbridge Comment
  CAS-BOT-BC280733  Holcus lanatus Thomas W. Nelson; Jane P. Nelson 1979-7-3 4959 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads 609 Comment
  CAS-BOT-BC280735  Holcus lanatus L. R. Abrams 1916-7-11 6018 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC26446  Holcus lanatus T. O. Osborne 1970-9-16 65 Humboldt Prisoner Rock, Trinidad Bay. Comment
  HSC38837  Holcus lanatus R. Sutherland 1976-8-13 3 .13876 Humboldt Just above Whittemore Grove. 168 Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  JEPS75424  Holcus lanatus W. L. Jepson 1932-8-1 16467 Humboldt Bull Creek 121 Comment
  UCD81679  Holcus lanatus Chuck Hughes 2009-6-18 99 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  UCD84835  Holcus lanatus Linda M. Barker 1976-6-22 1614 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC149909  Holodiscus discolor C. C. Harris; S. K. Harris 1936-6-9 329 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC71582  Holodiscus discolor Gail Newton 1980-6-16 189 Humboldt Near Onion Mtn. 1280 Comment
  HSC74664  Holodiscus discolor Gail Newton 1981-8-5 2368 Humboldt Near Bug Creek, E Fork 914 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
  UC175631  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1912-7-31 3909 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain, Burr Valley 1066 Comment
  UC154227  Horkelia californica Joseph P. Tracy 1906-6-24 2503 Humboldt Region about Humboldt Bay (s slope of Humboldt Hill); Northern Coast Region, Humboldt Hill 152 Comment
  HSC96008  Horkelia tridentata Juha Pykala, D. H. Norris 1987-6-11 1647 Humboldt Hoopa Indian Reservation, Big Hill Rd. 1 mi. SE of Big Hill 869 Comment
  HSC99253  Hosackia oblongifolia var. oblongifolia Jimerson, J. Pageau 1979-8-10 717 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  JEPS121647  Hosackia pinnata Jennifer Buck, Danielle Roach 2009-8-21 Humboldt Mistletoe Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM07A Comment
  HSC70236  Hydrophyllum occidentale M. A. Baker 1980-6-8 1899 Humboldt Near Buck Flat. 1554 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
  HSC74430  Hypericum anagalloides Gail Newton 1980-8-10 2060 Humboldt Near Blake Mtn. 1707 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC27781  Hypericum perforatum J. D. Ackerman, A. M. Montalvo 1973-6-17 57 Humboldt 1 mi. W of Redwood Creek along Hwy. 299 Comment
  HSC36264  Hypericum perforatum John Rehling 1974-8-20 26 Humboldt Road leading to Alder Point Conservation camp 2 mi. from Hwy. 101 Comment
  HSC98532  Hypericum perforatum Cara Witte 2007-7-3 402 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  UCSB30591  Hypericum perforatum Edwards, David 1974-8-12 Humboldt S. side of 7th St; just W. of its overpass of U.S. 101; Areata 18 Comment
  HSC100439  Hypochaeris glabra Carl C. Marshall May 1885 44 Humboldt Roadsides, etc. Comment
  RSA170208  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek; William Perry place. 152 Comment
  UC127571  Hypochaeris radicata Harley P. Chandler May 1901 1126 Humboldt Arcata North Coast Ranges, Humboldt Bay 30 Comment
  HSC79460  Hypochaeris radicata Kenneth Clark 1980-6-14 676 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  JEPS79907 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  SEINET5536070 Image available Impatiens glandulifera W. J. Ferlatte, B. D. Rogers 1966-1 3128 Humboldt Lampheres Garden Comment
  JEPS3745  Iris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3414 Humboldt just below Snow Camp Mountain, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1432 Comment
  UC162596  Iris douglasiana Joseph P. Tracy 1911-6-4 3215 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  JEPS540  Iris douglasiana W. L. Jepson 1932-7-29 16442 Humboldt Weatt 91 Comment
  POM263709  Iris douglasiana R. C. Foster 1937-5-22 210 Humboldt 3 miles south of Trinidad Comment
  RSA40408  Iris douglasiana Philip A. Munz, Lee W. Lenz 1948-8-13 12350 Humboldt 8 miles east of Blue Lake, on Highway 299 305 Comment
  UC1174757  Iris douglasiana L. W. Lenz and E. K. Balls 1956-6-12 21666 Humboldt between Willow Creek and Blue Lake (U.S. Hwy 299) 365 Comment
  UCD138802  Iris purdyi M. Wiesendanger 1928-4-7 912 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  SEINET12045029  Iris tenax T. Jimerson, Pageau, J. 1979-1 436 Humboldt on Forest Road 12N20, 0.2 mi N of Forest Road 15N01 (G.O. Road), Orleans 710 Comment
  HSC45310  Iris tenax subsp. klamathensis R. York 1978-5-11 166 Humboldt Along logging road 4.5 mi. from Orleans 640 Comment
  UC14929  Iris tenuissima Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA135923  Iris tenuissima Lee W. Lenz 1953-5-17 18318 Humboldt Crawford Creek, just below Orleans 122 Comment
  RSA183615  Isatis tinctoria D. E. Anderson 1965-5-1 3569 Humboldt Slides along Hwy 96 and Klamath River about 3-4 miles E of Weitchpec. Comment
  UC1222653  Isatis tinctoria Joseph P. Tracy 1950-8-20 19316 Humboldt w side at mouth of Salmon River, Klamath River Salmon River; Klamath River, Salmon River Comment
  HSC45611  Isatis tinctoria Diane L. Reed 1978-5-7 68 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  JEPS60155  Isoetes echinospora Joseph P. Tracy 1937-8-12 15651 Humboldt Snow Camp 1402 Comment
  HSC92109  Isoetes echinospora L. Carufel 1973-8-16 Humboldt Growing in Divide Lake Comment
  RSA152291  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp. 1402 Comment
  CHSC84742  Isolepis cernua L. P. Janeway 2003-7-27 7928 Humboldt North Coast. East shore of Big Lagoon, about 0.3 km north of mouth of Tom Creek. 2 Comment
  CAS-BOT-BC112456  Isolepis cernua Joseph Prince Tracy 1927-9-4 8363 Humboldt Sand Dunes, near Samoa on Humboldt Bay; depressions where water collects in winter.q 6 Comment
  HSC7447  Isolepis cernua D. E. Anderson 1961-9-13 1817 Humboldt 1 mi. S of Trinidad Comment
  CAS-BOT-BC340155  Jaumea carnosa Doris K. Kildale 1929-6-6 8484 Humboldt Stone Lagoon Comment
  CAS-BOT-BC340153  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  UC668200  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt mouth Eel River (salt marsh) 3 Comment
  UC184214  Juncus bolanderi Joseph P. Tracy 1900-9-3 940 Humboldt Eureka Northern Coast Region 0 Comment
  CHSC10121  Juncus breweri J. W. Johnson 1961-8-17 Humboldt Arcata. In the vernal pond community of Hollow 10, W.M. Lanphere Farm. Samoa Peninsula. Comment
  CHSC102919  Juncus breweri Peter F. Zika 2007-7-19 23173 Humboldt North Coast. S end of Humboldt Bay. 3 Comment
  RSA129413  Juncus breweri H. S. Yates 1936-6-16 5655 Humboldt 1/2 mile southwest of Samoa. 3 Comment
  UCD141319  Juncus breweri Harold L. Lint 1964-1-4 C 308 Humboldt Hwy 101, Dry Lagoon State Park. Comment
  SEINET6333123  Juncus bufonius S. T. Parks, H. E. Parks 24254 Humboldt North Coast Ranges, Spruce Cove, Trinidad 61 Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  POM312824  Juncus ensifolius Malcolm A. Nobs, S. Galen Smith 1949-8-3 1199 Humboldt Southern outskirts of Eureka Comment
  HSC69632  Juncus lescurii R. Kalal 1980-6-3 27 Humboldt Samoa Dunes, along Samoa Blvd., near Eureka 3 Comment
  HSC14028  Juncus lescurii J. W. Johnson 1961-8-17 1057 Humboldt Arcata, Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UCSC000129  Juncus lescurii H. S. Yates 1936-6-16 5655 Humboldt 0.5 miles S.W. of Samoa - Eureka 3 Comment
  UC1151997  Juncus occidentalis Joseph P. Tracy 1937-8-12 15641 Humboldt Snow Camp 1402 Comment
  UC1152001  Juncus occidentalis Joseph P. Tracy 1937-8-3 15609 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC79500  Juncus patens Kenneth Clark 1980-6-14 682 Humboldt Shelter Cove, N Fork of Dead Man's Gulch. 122 Comment
  UC302167  Juncus phaeocephalus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CDA28713  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. Elevation: 110 meters. 0 Comment
  SEINET11789825  Juncus tenuis J. P. Tracy 1937-1 15609 Humboldt near Blue Lake, along Mad River 15 Comment
  SEINET8567059 Image available Juncus xiphioides John Thomas Howell 1936-8-28 12882 Humboldt 4.5 miles from Dinsmores on road to Bridgeville Comment
  RSA120310A  Keckiella corymbosa S. S. Tillett 1956-7-6 605 Humboldt E facing slope above Klamath River, along Ishi Rish Road, 1 mi. n. of Orleans. 168 Comment
  UC146235  Keckiella corymbosa Joseph P. Tracy 1908-7-31 2935 Humboldt Bridgeville Northern Coast Ranges (rocks along Van Duzen River) 152 Comment
  UC41735  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigans's Comment
  UC41736  Keckiella lemmonii Chesnut and Drew 1800-1 Humboldt Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  CDA2756  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Arcata Marsh and Wildlife Refuge. Southeast corner of Klopp Lake dike, Arcata. Comment
  UC1103696  Koeleria macrantha Joseph P. Tracy 1934-6-19 13233 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC187283  Koeleria macrantha Joseph P. Tracy 1905-6-11 2195 Humboldt bluff back Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  POM187943  Lactuca biennis Marcus E. Jones 1931-7-14 29090 Humboldt South of Eureka Comment
  UC577363  Lamium amplexicaule Joseph P. Tracy 1934-7-12 13380 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA170204  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard. Trinity River Valley at Willow Creek. 152 Comment
  UC1223221  Lapsana communis Joseph P. Tracy 1949-7-4 18326 Humboldt intersection of Kneeland and Butter Valley roads (at Cameron Hill); Cameron Hill Comment
  CAS-BOT-BC337996  Lasthenia californica Doris K. Kildale 1926-4-30 1933 Humboldt Fruitland Hill - Harris road Comment
  UC166224  Lasthenia californica subsp. californica J. P. Tracy 1901-5-18 1099 Humboldt Ocean beach Samoa; Opp. Eureka Comment
  UC249830  Lasthenia californica subsp. californica Joseph P. Tracy 1923-7-4 6520 Humboldt valley South Yager Creek; Northern Coast Ranges 762 Comment
  CAS-BOT-BC352930  Lasthenia glaberrima S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3439 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  CAS-BOT-BC352932  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt Larrabee Creek, near Bosworth's 457 Comment
  HSC14735  Lathyrus japonicus R. C. Hoover 1965-5-18 57 Humboldt Clam Beach Comment
  JEPS64857  Lathyrus lanszwertii var. lanszwertii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UC302109  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1926-5-2 7432 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC64214  Lathyrus nevadensis var. nevadensis J. O. Sawyer, M. A. Ericksen 1979-6-23 3387 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC74333  Lathyrus nevadensis var. nevadensis Gail Newton 1980-6-16 151 Humboldt Near Monks Camp 1097 Comment
  UC709436  Lathyrus polyphyllus Joseph P. Tracy 1936-8-8 15128 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC303182  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  JEPS55310  Lathyrus sulphureus Lincoln Constance 1934-5-31 757 Humboldt from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  NY73892  Lathyrus torreyi H. N. Bolander 1866-1 6506 Humboldt Thickets near the coast Comment
  UCD106660  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt 15 miles E of Blue Lake, along Highway 299. Comment
  UC1199067  Lathyrus vestitus Joseph P. Tracy 1937-6-20 15359 Humboldt s of Ferndale; Wild Cat Ridge 304 Comment
  UC175635  Lathyrus vestitus Joseph P. Tracy 1913-6-26 4352 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC326000  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata. Comment
  CHSC53236  Layia carnosa L. P. Janeway 1984-3-17 717 Humboldt On North Spit of Humboldt Bay, west of Samoa Road near the boat launch ramp. 4 Comment
  HSC26331  Layia carnosa Thomas W. Nelson 1971-4-16 381 Humboldt On dunes along the Samoa Peninsula adjacent to the Coast Guard Station Comment
  POM361751  Leontodon nudicaulis M. B. Dunkle 1936-8-18 4810 Humboldt Fortuna Comment
  JEPS36507  Leontodon saxatilis subsp. saxatilis W. L. Jepson 1936-8-17 17926 Humboldt 2 1/2 mi s Fields Landing Comment
  SD87756  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt Mad River, near Blue Lake Comment
  UC1239532  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1918-8-15 5094 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  HSC98043  Lepidium campestre Cara Witte 2007-7-17 538 Humboldt Along National Forest 1. 1 mile south of Brays Opening. 1447 Comment
  POM203447  Lepidium heterophyllum M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC1199160  Lepidium nitidum Joseph P. Tracy 1913-5-4 4069 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC492269  Lepidium nitidum Joseph P. Tracy 1928-3-24 8407 Humboldt 3 mi s Point of Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  CAS-BOT-BC13038  Lepidium virginicum var. menziesii C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  HSC17071  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  HSC71033  Leptosiphon bicolor Thomas W. Nelson 1977-4-20 3325 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  CAS-BOT-BC226709  Leptosiphon latisectus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  UC1198594  Leptosiphon latisectus Joseph P. Tracy 1930-5-25 8707 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  HSC95585  Leucanthemum vulgare Andrea Pickart 2002-7-8 159 Humboldt N Spit Dunes, Mad River Co. Park, near parking area. 0 Comment
  UC535742  Leucanthemum vulgare Eleanor Armstrong 1168 Humboldt Richardson Grove Comment
  HSC72875  Lewisia nevadensis M. A. Baker 1980-6-8 1905 Humboldt Near Buck Flat. 1554 Comment
  RSA249391  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5590 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1198372  Lewisia triphylla Joseph P. Tracy 1932-7-18 10711 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  SEINET7292880 Image available Leymus vancouverensis Malcolm A. Nobs, S. Galen Smith 1949-1 1204 Humboldt Humboldt Bay, ca. 2 miles north of Eureka Comment
  JEPS14227  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  JEPS17505  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  JEPS81114  Ligusticum apiifolium Joseph M. DiTomaso 1980-6-27 1623 Humboldt 6 mi. from Orleans (on Gasquet-Orleans Rd.) Comment
  UC642246  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  CAS-BOT-BC508397  Lilium columbianum W. R. Dudley 1899-1-1 s.n. Humboldt Big Lagoon, south of Klamath River Comment
  RSA130333  Lilium columbianum Albert M. Vollmer, L. Beane 1953-07 121 Humboldt Humboldt County Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  HSC15572  Lilium kelloggii S. V. Thompson 1967-7-23 9 Humboldt E of Freshwater Park Comment
  UC1198243  Lilium occidentale Joseph P. Tracy 1924-9-21 6886 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC201617  Lilium pardalinum Joseph P. Tracy 1918-7-5 5003 Humboldt White Thorne Valley Northern Coast Ranges, Mattole River (banks of Mattole River) 304 Comment
  HSC99865  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-8-10 713 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC23110  Limnanthes douglasii Norman Dennis 1965-6-11 113 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
  HSC97634  Limnanthes douglasii subsp. nivea Cara Witte 2007-6-4 191 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC971842  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-30 1282 Humboldt e side of road to Fortuna 4.9 mi from Bridgeville Comment
  UC908667  Linanthus bicolor Joseph P. Tracy 1933-6-13 12576 Humboldt near summit on road from Hoopa w to Bair's (Hoopa Mountain); Hoopa Mountain 1066 Comment
  UC162582  Linanthus filipes Joseph P. Tracy 1911-7-9 3456 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  CDA6373  Linaria vulgaris E. C. Whitney 1964-8-12 Humboldt Zuber property, Orick. 0 Comment
  RSA8323  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  HSC99851  Linnaea borealis subsp. longiflora T. Jimerson, J. Pageau 1979-6-12 533 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  UCSB13370  Linnaea borealis var. longiflora 1954-6-21 Humboldt Olson Creek, 2 mi. E. NE. of Mad River Comment
  HSC63066  Linum bienne David Wheeler 1979-5-23 135 Humboldt Humboldt State University campus by the Plant Operations yard. Comment
  UC1103027  Listera cordata Joseph P. Tracy 1923-6-24 6361 1/2 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  SEINET12034163  Lithocarpus densiflorus K. S. Erdman 1970-1 4793 Humboldt Redwood Natl Park naer Holter Ridge entrance on the Bald Hills road SE of Orick;T10N,R2E,Sec18 Comment
  CAS-BOT-BC36150  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1931-8-9 s.n. Humboldt [Threc] Creeks on Willow Creek road Comment
  JEPS20909  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1223117  Logfia gallica Joseph P. Tracy 1948-6-13 18038 Humboldt along Larrabee Cr, halfway between Bridgeville and Blocksburg; Larrabee Creek Comment
  HSC45285  Logfia gallica R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  UC1103160  Lolium multiflorum Joseph P. Tracy 1948-6-13 18043 Humboldt 7 mi nw Blocksburg (Larrabee Creek); Larrabee 304 Comment
  HSC72637  Lolium perenne J. P. Smith 1977-7-3 9246 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA293179  Lolium perenne James Payne Smith Jr. 1977-7-3 9246 Humboldt Six Rivers National Forest, Along road to Onion Lake, just above Blue Lake 976 Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UC1103158  Lolium temulentum Joseph P. Tracy 1909-8-1 3064 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC906634  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1947-7-5 17779 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC102607  Lomatium macrocarpum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1594 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC73958  Lomatium nudicaule Gail Newton 1980-6-7 125 Humboldt Near Brush Mtn. 1128 Comment
  UC314629  Lomatium tracyi Joseph P. Tracy 1926-6-20 7610 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1524 Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  HSC47609  Lomatium utriculatum J. P. Smith 1977-4-23 9025 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC314599  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  UC1239545  Lonicera ciliosa Joseph P. Tracy 1936-8-7 15115 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  JEPS12840  Lonicera hispidula var. vacillans Lincoln Constance 1934-5-29 717 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UCSB10475  Lonicera involucrata Phillips, Priscilla 1958-6-10 Humboldt 0.8 mi. south of intersection of Highway 101 and old highway parallel to it, which runs between Trinidad and Colonial Inn, on the old road Comment
  POM92405  Lonicera involucrata L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay. Comment
  CAS-BOT-BC241496  Lonicera involucrata var. ledebourii Huron H. Smith 1911-6-4 3801 Humboldt Trinidad Comment
  HSC3931  Lonicera involucrata var. ledebourii D. E. Anderson 1961-9-13 1806 Humboldt Big Lagoon County Park Comment
  HSC69640  Lonicera involucrata var. ledebourii R. Kalal 1980-5-18 19 Humboldt Entrance to Dry Lagoon State Park, along abandoned Rd. 21 Comment
  RSA21019  Lonicera involucrata var. ledebourii C. B. Wolf 1937-9-12 9327 Humboldt Dry Lagoon State Park; base of coastal cliffs. 5 Comment
  SBBG7361  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UCR270277  Lotus John F. Emmel 2003-7-30 1798 Humboldt North Coast Range, Redwood National Park, 16.6 road miles southeast of Hwy 101 on Bald Hills Road, c. 0.3-0.4 air mile west of Schoolhouse Peak 823 Comment
  UC1197317  Lotus aboriginus J. P. Tracy 1902-7-4 1762 Humboldt immediate vicinity Eureka 0 Comment
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  UC1223434  Lotus crassifolius var. crassifolius Joseph P. Tracy 1935-7-29 14341 Humboldt ne of Ranger Station (at beginning of Salmon Summit Trail, Humboldt County side); Trinity Summit, Salmon Summit Trail Comment
  UC1197291  Lotus humistratus Joseph P. Tracy 1911-7-4 3283 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  RSA168893  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  UC1223429  Lotus micranthus Joseph P. Tracy 1936-6-8 14866 Humboldt near Trinidad 3 Comment
  UC162848  Lotus nevadensis var. nevadensis Joseph P. Tracy 1908-6 2913 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  SEINET3694377 Image available Lotus oblongifolius Joseph P. Tracy 1930-7-16 8997 Humboldt South Fork Mountain; McKay Camp 1676 Comment
  UC1223420  Lotus purshianus var. purshianus Joseph P. Tracy 1933-8-30 13021 Humboldt Titlow Mountain Grouse Mountain 1524 Comment
  UC202015  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-28 5092 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC71596  Lotus unifoliolatus var. unifoliolatus M. A. Baker 1980-6-26 2407 Humboldt Near Sims Creek 610 Comment
  UC162837  Lotus wrangelianus Joseph P. Tracy 1903-5-23 1901 Humboldt Alder Point, along Eel River Northern Coast Ranges, Eel River 152 Comment
  SEINET3523647 Image available Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt South Fork Mountain, near McKay camp 1676 Comment
  HSC6870  Lunaria annua H. S. Logsdon 1964-4-11 19 Humboldt 4 mi. NE of Orick at Boye's Prairie, along Prairie Creek Comment
  HSC41303  Lupinus albicaulis Brad Klipfel 1974-7-23 463 Humboldt Horse Mtn. Comment
  UC1197253  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 Comment
  HSC32158  Lupinus andersonii J. O. Sawyer 1970-6-24 2233 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC49997  Lupinus andersonii M. A. Baker 1979-6-7 789 Humboldt W slope of Snow Mtn. 762 Comment
  CHSC10105  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata. In the dune fields, Christenson Farm, Samoa Peninsula. Comment
  CHSC68783  Lupinus arboreus Vernon Oswald 1997-6-5 8534 Humboldt North spit of Humboldt Bay, west side of New Navy Base Road. 1.0 mi south of Hwy. 255. 6 Comment
  CSUSB1636  Lupinus arboreus Susan Thompson 1967-7-23 Humboldt Trinidad, California 15 Comment
  HSC89700  Lupinus arboreus Larry Levine, Pacheco, Murphey 1989-5-5 54 Humboldt SW of Hwy. 101 bridge over Little River Comment
  UC503006  Lupinus arboreus Joseph P. Tracy 1932-5-16 10104 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  RSA407032  Lupinus arboreus var. arboreus E. A. Purer 1932-7-27 4150 Humboldt Samoa. Comment
  UC1197282  Lupinus bicolor Joseph P. Tracy 1911-5-30 3195 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  JEPS83709  Lupinus constancei R. Raiche 1987-7-26 70513 Humboldt near Trinity Co. line (The Lassics, Lassic Peak); The Lassics, Lassic Peak 1737 Comment
  RSA104683  Lupinus densiflorus var. densiflorus Joseph P. Tracy 1911-7-4 3280 Humboldt Valley of Trinity River near mouth of Willow Creek. 152 Comment
  HSC58640  Lupinus latifolius G. L. Clifton, Griswold 1979-7-31 11636 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC168977  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-6-9 3663 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SBBG8916  Lupinus latifolius var. viridifolius H. and M. Dearing 1939-5-24 3416 Humboldt 5 mi S of Alton Comment
  UC170030  Lupinus nanus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3623 Humboldt hillsida at Alton; Northern Coast Region 30 Comment
  HSC14860  Lupinus polyphyllus H. E. Parks, S. T. Parks May 1930 737 Humboldt Vicinity of Alton Comment
  UC157015  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1906-6-24 2495 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay 0 Comment
  SEINET12165538  Lupinus propinquus F. H. Utech 1986-1 86 -386 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  UC150122  Lupinus rivularis J. P. Tracy 1910-5-8 3134 Humboldt immediate vicinity Eureka 0 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
  HSC56946  Luzula comosa Overton, Butler 1979-7-23 9436 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC57382  Luzula comosa Overton, Butler 1979-7-26 10102 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  UC1152123  Luzula comosa Joseph P. Tracy 1930-7-16 8903 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  RSA15576  Luzula comosa Carl B. Wolf 1927-8-28 1167 Humboldt 9 miles from Willow Creek, on the grade of the road to Blue Lake. Comment
  UC1239797  Lycopodiella inundata Joseph P. Tracy 1938-7-6 16022 Humboldt Big Lagoon 6 Comment
  HSC35500  Lysichiton americanus Petrovich May 1961 Humboldt Warren Cr. Comment
  UC1733678  Lysichiton americanus Kay H. Beach, Frank Gould 1940-5-5 478 Humboldt near Fields Landing. Comment
  UC176174  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1199114  Madia Joseph P. Tracy 1906-7-4 2537 Humboldt on bar of Yager Creek; Hydesville 60 Comment
  RSA167397  Madia elegans subsp. elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1067 Comment
  HSC71712  Madia exigua M. A. Baker 1980-6-26 2431 Humboldt Near Sims Creek 610 Comment
  HSC100441  Madia filipes Carl C. Marshall Jun 1887 457 Humboldt Near Harris. Comment
  CAS-BOT-BC343014  Madia gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4755 Humboldt Dinsmores Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  UCD20173  Madia gracilis J. M. Tucker 1948-9-3 1856 Humboldt Ridge between Horse and Grouse Mountains. Comment
  RSA293191  Madia gracilis subsp. gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch north of Dinsmore. Comment
  CHSC32860  Maianthemum dilatatum Lora L. Anderson 1981-4-26 1 Humboldt Ca. 5 m n on Clam Beach Rd, 0.5 km e of Hwy 101, 9.5 mi n of Arcata. 0 Comment
  HSC15594  Maianthemum dilatatum Harvey Doerksen 1962-5-22 27 Humboldt Azalea Reserve State Park near Mad River Comment
  UC13726  Maianthemum dilatatum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  CAS-BOT-BC508518  Maianthemum dilatatum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  RSA24336  Maianthemum dilatatum Carl B. Wolf 1941-2-25 9959 Humboldt South side of Freshwater Lagoon 61 Comment
  UCD139077  Maianthemum racemosum T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  HSC15643  Maianthemum racemosum subsp. amplexicaule Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  RSA347055  Maianthemum racemosum subsp. amplexicaule Lyman Benson 1928-7-12 494 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC75736  Maianthemum stellatum Bill Copeland 1980-7-2 356 Humboldt Near Snow Camp Creek 1311 Comment
  HSC98149  Maianthemum stellatum D. E. Anderson 1965-5-8 3630 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  JEPS68651  Malva parviflora Lincoln Constance 1934-6-18 900 a Humboldt n border of Dyerville Flat (near South Fork Railroad Station and Post Office, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  OBI35884  Marah oregana David J. Keil 1983-7-1 17293 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  SDSU5797  Marah oregana D. F. Howe 1961-8-1 3116 Humboldt 3.3 miles north of Trinidad on #101. Comment
  SJSU11759  Marah oregana R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  UCR27001  Marah oregana A. C. Sanders 1981-8-4 2261 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  SEINET7296138 Image available Melica altissima Joseph P. Tracy 1937-1 15549 Humboldt Trinity Summit; On Ridge 2 miles east of Grove's Prairie. 1524 Comment
  UCD87157  Melica californica A. H. Murphy 1951-6-12 57 Humboldt Fleming range plant count area on Ft. Seward ranch, south fork of the Eel River Drain. Comment
  UC188886  Melica harfordii J. Burtt Davy 1899-6-19 5657 Humboldt Hoopa Mt. summit; North Coast Ranges Comment
  HSC75447  Melica spectabilis J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC281026  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole, Trinity Summit 1828 Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  HSC97531  Melilotus albus Ivy Watson 2008-9-17 19 Humboldt Mad River Park on W End Rd., near pumping station, 300 ft. away from river. 8 Comment
  RSA293200  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell.. Comment
  HSC15523  Melilotus indicus Jana Kattenhorn 1970-10-28 154 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC15521  Melilotus indicus M. J. Athey 1970-10-12 11 Humboldt Along the old road to Trinidad Comment
  UC175779  Mentha aquatica Joseph P. Tracy 1912-10-20 3989 Humboldt Loleta Pond; Northern Coast Ranges, Loleta pond 30 Comment
  UC1225835  Mentha suaveolens Joseph P. Tracy 1943-11-7 17450 Humboldt near Bayside; near Bayside 6 Comment
  RSA53803  Mentzelia laevicaulis H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  JEPS80897  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 C Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
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Jul 9 2015
  HSC100505  Micromeria douglasii Carl C. Marshall Jun 1887 459 Humboldt Everywhere. 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-BC322686  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  UC582735  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1935-6-23 3973 Humboldt French Camp Ridge Comment
  HSC58383  Microseris nutans Terry Griswold 1979-7-25 10913 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  UC582731  Microseris nutans Joseph P. Tracy 1932-7-11 10417 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC70961  Microsteris gracilis Thomas W. Nelson 1977-6-15 3455 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC98617  Microsteris gracilis Cara Witte 2007-5-23 111 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  UC582607  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  HSC74642  Mimulus guttatus M. A. Baker 1980-5-18 1366 Humboldt Near Black Mtn. 792 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA14135  Mimulus guttatus Elmer I. Applegate 1923-9-10 3995 Humboldt Stone Lagoon. 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
  UC582479  Mimulus inodorus Joseph P. Tracy 1933-8-6 12949 Humboldt French Camp Ridge 1066 Comment
  UC444807  Mimulus kelloggii Joseph P. Tracy July, 1908 2760 Humboldt near Low Gap (ridge between Van Duzen River and Mad River) 914 Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  HSC56180  Mimulus primuloides var. primuloides G. L. Clifton, Griswold 1979-8-1 12095 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55643  Mimulus pulsiferae Overton, Butler 1979-7-24 9711 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC147912  Mimulus pulsiferae Joseph P. Tracy 1908-6 2828 Humboldt Buck Mountain Northern Coast Ranges (nw slope, along waterway) 1219 Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  HSC71675  Minuartia douglasii M. A. Baker 1980-6-26 2392 Humboldt Near Sims Creek 610 Comment
  HSC24390  Mitella diversifolia J. O. Sawyer 1970-6-24 2252 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC1198870 Image available Mitella diversifolia Joseph P. Tracy 1935-7-22 14123 Humboldt near Forks of Tish-Tang-A-Tang Creek; Trinity Summit 1371 Comment
  UC1197971  Modiola caroliniana Joseph P. Tracy 1942-5-16 17333 Humboldt Garberville 152 Comment
  HSC72792  Moehringia macrophylla M. A. Baker 1980-6-16 1931 Humboldt Near Monks Camp 109 Comment
  CAS-BOT-BC221777  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lassecks Peaks 1661 Comment
  CAS-BOT-BC221969  Monardella odoratissima subsp. glauca Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  UC577361  Monardella odoratissima subsp. glauca Joseph P. Tracy 1933-7-26 12913 Humboldt Grouse Mountain North Coast Ranges 1630 Comment
  HSC48699  Monardella odoratissima subsp. pallida Brad Klipfel 1973-7-31 239 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57877  Monardella odoratissima subsp. pallida Overton, Butler 1979-7-31 11413 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC40852  Monardella odoratissima subsp. pallida Thomas W. Nelson 1976-7-9 2997 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  SEINET892718  Monardella purpurea Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  UC1239683  Monardella sheltonii Joseph P. Tracy 1912-7-26 3867 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  LA62385  Monardella villosa Carl Epling; William Robison 1935-7-25 sn Humboldt Dyerville Comment
  JEPS63367  Monardella villosa subsp. villosa W. L. Jepson 1936-8-12 17883 Humboldt Philipsville South Fork Eel River. Comment
  UC203967  Monardella villosa subsp. villosa Joseph P. Tracy 1918-7-2 4984 Humboldt Mattole Valley, mouth of Honey Dew Creek; Northern Coast Ranges 152 Comment
  CAS-BOT-BC444806  Montia diffusa Volney Rattan 1875-1-1 s.n. Humboldt Unspecified Comment
  RSA264852  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  RSA29091  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  UCD101747  Montia diffusa Don Hagar 1956-5-14 59 Humboldt Brush Mountain, 6 miles southwest of Willow Creek. 914 Comment
  HSC98897  Montia fontana Cara Witte 2008-6-9 693 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1454 Comment
  CAS-BOT-BC445047  Montia linearis Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Prairie Comment
  CHSC84555  Montia parvifolia John Dittes; Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer North Coast Range; ca. 2.9 air-mile northwest of Legget, ca. 5.2 air-mile southeast of Piercy, on eastern bank of South Fork Eel River. 182 Comment
  JEPS43291  Montia parvifolia W. L. Jepson 1902-6-30 1961 Humboldt from Ukiah to the Hupa Indian Reservation (Redwood Creek); Redwood Creek Comment
  UCD86610  Muhlenbergia filiformis Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west of the Trinity Summit area. 1645 Comment
  UCD86717  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit. 1828 Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  UCD119529  Myosotis latifolia James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC47657  Myosotis sylvatica Sheila Logan 1978-4-10 180 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  CAS-BOT-BC101669  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick's Point Comment
  CDA20056  Myriophyllum aquaticum R. Spadoni, Green 2002-10-9 PDR P 070866 -A Humboldt Pacific Lumber Co, Scotia. 0 Comment
  HSC77873  Myriophyllum sibiricum Ted Jacobson 1975-11-3 Humboldt Stone Lagoon 0 Comment
  HSC77875  Myriophyllum sibiricum William White 1975-5-25 Humboldt Orick Beach ponds Comment
  RSA77516  Myriophyllum sibiricum F. W. Peirson 1923-7-11 3786 Humboldt 20 miles north of Eureka. Comment
  HSC79365  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Western beach coastal bluffs, Point Delgada, Shelter Cove 6 Comment
  HSC56058  Navarretia divaricata G. L. Clifton, Griswold 1979-7-31 11693 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC76562  Navarretia divaricata var. divaricata Denis Kearns 1981-7-22 324 Humboldt Near Whiteys Peak. 1487 Comment
  UC1198607  Navarretia intertexta Joseph P. Tracy 1934-7-9 13345 Humboldt Dobbyn Creek 152 Comment
  JEPS70409  Navarretia intertexta subsp. propinqua Chesnut and Drew 1888-1 Humboldt Comment
  JEPS70369  Navarretia leucocephala subsp. bakeri Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle Yager Creek and North Yager Creek (East Ranch) 762 Comment
  JEPS70462  Navarretia squarrosa W. L. Jepson 1921-8-11 9416 Humboldt Big Lagoon Humboldt Coast Comment
  SEINET10840156  Nemacladus capillaris Tracy 1930-7-10 TRACY 8865 Humboldt Brannan Mountain 1219 Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 Comment
  HSC99204  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 mi. N of Willow Creek along Rd. on E side of Trinity River Comment
  HSC34960  Nemophila menziesii var. atomaria Thomas W. Nelson 1975-5-24 1868 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM65369  Nemophila menziesii var. atomaria H. P. Chandler 1901-06 1276 Humboldt Hupa Mountains. Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  UC1239752  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-1 6174 Humboldt 3 mi e Blue Lake (Mankin Place); e of Blue Lake, Mankin Place 274 Comment
  HSC58023  Nemophila parviflora G. L. Clifton 1979-7-31 11829 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC198657  Nemophila pedunculata Joseph P. Tracy 1917-4-29 4779 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  HSC20657  Nuttallanthus texanus R. J. Vernimen 1963-4-27 36 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  JEPS11312  Nuttallanthus texanus Joseph P. Tracy 1918-5-5 4921 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC902240  Nuttallanthus texanus Joseph P. Tracy 1948-5-15 17977 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 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
  RSA782436  Oemleria cerasiformis R. W. Spjut, Paul Burchstead 2008-6-14 16347 Humboldt North Coast Ranges. Old Hwy. along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  RSA21623  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  CAS-BOT-BC502775  Orobanche californica subsp. californica J. Clausen 1932-9-18 690 Humboldt About 5 mi S of Cape Mendocino Lighthouse Comment
  CAS-BOT-BC499865  Orobanche fasciculata L. R. Abrams 1918-6-15 7119 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC500261  Orobanche uniflora subsp. occidentalis Doris K. Kildale 1927-5-20 3216 Humboldt Bug Creek 792 Comment
  UC1197574  Orthilia secunda Joseph P. Tracy 1932-7-16 10621 Humboldt Trinity Summit bear Corral Prairie 1584 Comment
  HSC104436  Orthilia secunda Bianca Hayashi 2013-6-18 Humboldt Northwest of Snow Camp Mountain Comment
  HSC100939  Orthocarpus attenuatus Miss Handy Jun 1886 40 Humboldt Maple Cr. Comment
  CAS-BOT-BC6997  Orthocarpus castillejoides var. humboldtiensis Philip Alexander Munz 1925-6-20 9890 Humboldt Eureka Comment
  RSA402027B  Orthocarpus faucibarbatus S. K. Harris 1936-6-7 683 Humboldt Eureka. Near railroad station. 3 Comment
  HSC21583  Osmorhiza berteroi R. D. Zortman 1963-5-15 49 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC16719  Oxalis articulata subsp. rubra D. E. Anderson 1961-9-22 1827 Humboldt Comment
  CHSC19520  Oxalis oregana R. D. Modafferi 1965-5-1 66 Humboldt 0.5 mile south of Trinidad on old highway 101. Roadside. Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  HSC104035  Oxalis oregana E. R. Fyer 2015-3-19 7 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299 484 Comment
  HSC29727  Oxalis oregana J. D. Ackerman, A. M. Montalvo 1973-4-29 75 Humboldt Previously logged area, 2 mi. NE of Kneeland. 457 Comment
  JEPS108632  Oxalis oregana H. G. Baker Humboldt 1 mi S of Burlington Comment
  SEINET3347161 Image available Oxalis trilliifolia Joseph P. Tracy 1923-6-24 6362 Humboldt Bald Mountain, near High Prairie 1067 Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  UC427872  Packera bolanderi var. bolanderi Parks and Tracy 1930-5-25 865 Humboldt Lower Van Duzen River, e Humboldt County Lower Van Duzen River Comment
  UC1196179  Paeonia brownii Joseph P. Tracy 1913-6-16 4146 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC187241  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  RSA54133  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce Creek Orleans region Comment
  HSC93730  Parapholis incurva Gordon Leppig, Sylvia Leppig 1998-5-25 788 Humboldt Big Lagoon State Park. 1 Comment
  JEPS94285  Parentucellia viscosa Vernon Oswald and Lowell Ahart 1997-9-4 8855 Humboldt Samoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from the ocean North Spit; Samoa Dunes Recreation Area Comment
  POM126123  Paspalum distichum Joseph P. Tracy, H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon 6 Comment
  HSC20923  Pedicularis densiflora Jack Rockwell 1962-5-13 69 Humboldt N of main highway on logged hillside 632 Comment
  UC213504  Pedicularis racemosa Joseph P. Tracy 1919-9-18 5249 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  UC218627  Pellaea andromedifolia Joseph P. Tracy 1921-5-30 5495 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1314350  Pellaea andromedifolia R. M. and A. F. Tryon 1958-6-5 5556 Humboldt 3.8 mi w Redway (on rd to Briceland) Comment
  UCD137559  Pellaea andromedifolia Lincoln Constance 1934-6-4 813 Humboldt Bull Creek Region, South Fork Eel River. Comment
  HSC44531  Penstemon anguineus Brad Klipfel 1973-7-1 139 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55332  Penstemon anguineus Terry Griswold, Marvin Butler 1979-7-12 7176 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  HSC56314  Penstemon anguineus Walter Overton, Marvin Butler 1979-8-2 12651 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  HSC74482  Penstemon deustus Gail Newton 1980-7-24 1767 Humboldt Near Somes Mtn. 1615 Comment
  HSC98095  Penstemon laetus subsp. sagittatus Cara Witte 2007-7-3 417 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  NY604558  Penstemon laetus var. sagittatus R. W. Spellenberg 1990-7-10 10241 Humboldt Extreme east edge county, 11 air miles east of Burnt Ranch at 11 miles south of Berry Summit (on California Highway 299) on USFS 1 1432.6 Comment
  RSA407900  Penstemon laetus var. sagittatus H. M. Pollard 1948-7-19 s.n. Humboldt River road between Orleans and Van Fleet Ranch. Comment
  HSC73634  Penstemon newberryi M. A. Baker 1980-7-23 3180 Humboldt Near Orleans Mtn. 1859 Comment
  HSC56119  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11894 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  UC41737  Penstemon newberryi var. berryi Chestnut and Drew 1888-7-21 Humboldt S. Fork Mountain Comment
  UC902219  Penstemon parvulus Joseph P. Tracy 1942-6-23 17223 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 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
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  HSC79535  Pentagramma triangularis Kenneth Clark 1980-6-14 693 Humboldt On Greywacke outcrop, N fork Dead Man's Gulch 91 Comment
  CAS-BOT-BC71617  Pentagramma triangularis subsp. triangularis Doris K. Kildale 1927-7-3 3650 Humboldt Willow Creek Flat Comment
  CHSC57403  Pentagramma triangularis subsp. triangularis L. P. Janeway 1984-5-6 757 Humboldt Above Ishi Pishi Road, 1/2 mi northeast of Orleans. 137 Comment
  UC906650  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1942-9-20 17324 Humboldt 2 mi s Fields Landing 3 Comment
  UC314589  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-10-28 6588 Humboldt Bald Mt. Northern Coast Ranges 762 Comment
  UC1197122  Perideridia howellii Joseph P. Tracy 1935-5-25 13854 Humboldt Fort Seward 106 Comment
  UC906670  Perideridia howellii Joseph P. Tracy 1949-8-27 18503 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mt. 609 Comment
  HSC45468  Persicaria wallichii Thomas W. Nelson, M. Alcasas 1978-10-10 4555 Humboldt Off Hwy. 101 right-of-way N of HSU exit Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  HSC91906  Petasites frigidus var. palmatus E. Mackey 1986-7-10 Humboldt Patrick's Point State Park; near restroom on the road to Wedding Rock Comment
  HSC42200  Phacelia bolanderi Ed Cope 1977-4-23 22 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  POM287461  Phacelia bolanderi Lyman Benson 1928-7-12 484 Humboldt Woods across South Fork Eel River from Weott Ranger Station; seaward north coast mt. range. 61 Comment
  SEINET12330003  Phacelia bolanderi F. H. Utech 1986-1 86 -384 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  HSC38128  Phacelia heterophylla subsp. virgata Thomas W. Nelson, James Nelson 1976-5-30 2618 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM127633  Phacelia heterophylla subsp. virgata H. P. Chandler 1901-05 1257 Humboldt Redwood belt. 152 Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  HSC44535  Phacelia mutabilis Brad Klipfel 1973-7-1 143 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA134090  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 275 Humboldt Above the South Fork of the Eel River, about w miles S of the Humboldt County line. Redwood and Madrone area along U.S. 101. Comment
  UC1199102  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1938-6-11 15891 Humboldt Table Bluff 91 Comment
  UCD88519  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Ferndale. Rusk Ranch. Comment
  UC526833  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road Bald Mt.; North Coast Ranges, Bald Mt. 609 Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS49622  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC526750  Phleum alpinum Joseph P. Tracy 1932-7-10 10388 Humboldt Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC58632  Phleum pratense Gilbert Muth 1979-7-31 11490 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC1145044  Phleum pratense Joseph P. Tracy 1947-8-24 17899 Humboldt Meadow at Box Camp Trinity Summit 1463 Comment
Read comments
Aug 5 2009
  UC70904  Phleum pratense Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5689 Humboldt Hoopa Valley; North-Western California Comment
  HSC31124  Phlox adsurgens J. O. Sawyer 1970-6-24 2262 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  UC906757  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt near Box Camp; Trinity Summit 1524 Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  HSC17159  Phlox diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mtn. 1524 Comment
  UC52806  Phlox gracilis J. Burtt Davy Jun 1899 5675 Humboldt Hoopa Mt. Northern Coast Ranges Comment
  UC672850  Phoradendron juniperinum Joseph P. Tracy 1930-7-10 8770 Humboldt Brannan Mt. 1066 Comment
  RSA40785  Physocarpus capitatus Carl B. Wolf 1944-10-25 11467 Humboldt Sandy river bank, along the Eel River, Redwood Highway, at Richardson Grove. 61 Comment
  UC1198698  Physocarpus capitatus Joseph P. Tracy 1912-7-4 3721 Humboldt near Hydesville 60 Comment
  UC1541675  Physocarpus capitatus W. K. Parks June 1932 Humboldt vicinity of Trinidad Comment
  CAS-BOT-BC73444  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  UC1134170  Picea sitchensis H. S. Yates 1936-6-16 5659 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UCD134684  Picea sitchensis Jo Ann Olson; Gary R. Robbins 1969-4-26 35 Humboldt North plateau above Fern Canyon, Prairie Creek Redwoods State Park. 60 Comment
  HSC1483  Pinus contorta R. I. Bonn 1965-5-9 46 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC45891  Pinus contorta J. P. Smith 1971-10-6 4962 Humboldt Dunes at end of Murray Rd., McKinleyville, Bulk Collection # 154 Comment
  HSC72826  Pinus monticola Gail Newton 1980-6-16 192 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC79029  Pinus ponderosa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1196925  Pinus ponderosa Joseph P. Tracy 1926-6-27 7678 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC36773  Pinus sabiniana Brent Whitely 1975-7-10 153 Humboldt 198 Comment
  RSA34283  Piperia elegans J. Wendell Howe 1934-7-21 s.n. Humboldt Horse Mountain 1524 Comment
  JEPS79898  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC48720  Pityopus californicus T. Mainwaring 1978-6-2 Humboldt Horse Mountain Area. Bulk Collection 175 Comment
  UC1239612  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13884 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC552842  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  POM126351  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton. 30 Comment
  JEPS60974  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  HSC12018  Plantago major Wilbur Peterson 1970-10-28 93 Humboldt 1 mi. W of Blue Lake near R/R crossing Comment
  HSC90319  Plantago maritima Jean Hanson 1980-6-22 101 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  RSA54131  Plantago patagonica H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  HSC55213  Platanthera dilatata var. leucostachys Walter Overton 1979-8-1 12369 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1196416  Platanthera sparsiflora Joseph P. Tracy 1926-6-27 7671 Humboldt House Mountain Northern Coast Ranges 1463 Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  JEPS51579  Platystemon californicus W. L. Jepson 1902-6-20 1902 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC146098  Platystemon californicus Joseph P. Tracy 1904-5-1 2046 Humboldt near Bucksport (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  UC718183  Plectritis brachystemon Carl B. Wolf 1937-6-14 8814 Humboldt North Coast Range, Kneeland Prairie Kneeland Prairie; North Coast Range, Kneeland Prairie 822 Comment
  SEINET14400441  Plectritis congesta Unknown 1938-6-11 719 d Humboldt Humboldt County Comment
  UC1239597  Plectritis congesta Joseph P. Tracy 1938-7-7 16032 Humboldt North Coast Ranges, Grouse Mountain, at Cold Springs Grouse Mountain; North Coast Ranges, , Cold Springs 1432 Comment
  HSC99142  Pleuropogon refractus Cara Witte 2008-7-16 905 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile S of intersection with National Forest 1. 1409 Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  HSC10672  Poa compressa J. P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mtn. 1067 Comment
  HSC10676  Poa confinis J. W. Johnson 1962-5-10 1340 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC10684  Poa confinis R. D. Rogers 1964-4-10 6 Humboldt N Spit, Humboldt Bay. Comment
  HSC10694  Poa douglasii J. W. Johnson 1961-9-4 1101 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  UC70825  Poa douglasii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6181 Humboldt Ferndale Comment
  UCR80242  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  CAS-BOT-BC255848  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  RSA10115  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt Grizzly Creek on Van Duzen River 91 Comment
  SEINET10855127  Poa kelloggii Joseph P. Tracy 1911-6-4 Tracy 3219 Humboldt Along Little River Humboldt County 5 miles from the coast. Comment
  BLMAR301  Poa macrantha Jennifer Anthony-Wheeler 2002-6-15 301 Humboldt South Spit 6 Comment
  CAS-BOT-BC254284  Poa macrantha W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  UCD91539  Poa macrantha Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC10768  Poa pratensis N. R. Waite 1965-5-19 42 Humboldt W edge of Humboldt State University campus. Comment
  HSC40338  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCD91919  Poa pratensis P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia. By road through red woods off highway. Comment
  UCD91936  Poa pratensis A. Murphy 1951-4-19 s.n. Humboldt Tooby and Prior Ranch. Blocksburg. 457 Comment
  UC552763  Poa pratensis subsp. pratensis Joseph P. Tracy 1935-6-23 13987 Humboldt French Camp Ridge 1066 Comment
  HSC70904  Poa secunda subsp. secunda R. York 1980-5-18 598 Humboldt Near Black Mountain 792 Comment
  UC1103169  Poa secunda subsp. secunda Joseph P. Tracy 1921-4-24 5465 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UC525661  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 1/2 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts 1828 Comment
  UC525665  Poa secunda subsp. secunda Joseph P. Tracy 1926-6-20 7613 Humboldt Horse Mt; Northern Coast Ranges 1524 Comment
  UCD91730  Poa secunda subsp. secunda A. H. Murphy 1947-4-2 s.n. Humboldt 2 miles S of Blocksburg. Comment
  HSC10808  Poa trivialis E. W. Styskel 1963-5-19 42 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  RSA129470  Poa trivialis H. S. Yates 1936-6-16 5683 Humboldt Near Bayside 9 Comment
  UC525618  Poa trivialis Joseph P. Tracy 1926-6-12 7590 Humboldt near Orick (at Davison's Ranch on Prairie Creek); North Coast Ranges 60 Comment
  UCD92128  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay. 3 Comment
  UC1988934  Pogogyne zizyphoroides J. P. Tracy 1938-7-5 16005 Humboldt 45 Comment
  CDA3403  Polycarpon tetraphyllum Gordon Leppig 2000-12-6 1522 Humboldt 13th and A Streets, Arcata. Comment
  HSC32032  Polycarpon tetraphyllum D. E. Anderson 1974-8-1 Humboldt 6th St. in Eureka Comment
  SEINET10778587  Polygala J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13010 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  UC1198991  Polygala cornuta var. cornuta Joseph P. Tracy 1926-7-18 7744 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC902120  Polygala cornuta var. cornuta Joseph P. Tracy 1947-7-5 17788 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC64421  Polygonum aviculare J. P. Smith 1971-10-9 5048 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  CAS-BOT-BC414302  Polygonum aviculare subsp. neglectum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1198074  Polygonum bistortoides Joseph P. Tracy 1919-9-18 5242 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1713695  Polygonum davisiae Joseph P. Tracy 1919-9-22 5261 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC55108  Polygonum douglasii G. L. Clifton 1979-7-31 11849 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1116239  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17887 B Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1116241  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1947-7-5 17772 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  RSA275282  Polygonum kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt [Unspecified] 1616 Comment
  UC672943  Polygonum paronychia Joseph P. Tracy 1930-7-21 8890 Humboldt s point of cape (near ocean shore); Cape endocino 3 Comment
  UC146160  Polygonum parryi Joseph P. Tracy 1908-6 2722 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  UC672981  Polygonum phytolaccifolium Joseph P. Tracy Jul 16 1930-Jul 19 1930 9056 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCR246784  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Central Coast, near Trinidad, Patricks Point Drive at Seawood Drive, east of Hwy 101 91 Comment
Read comments
Jan 27 2015
  HSC99101  Polygonum polystachyum Cara Witte 2007-6-12 244 Humboldt Intersection of 4N70 and 4N32. Intersection to Grouse Mountain Lookout. 1628 Comment
  HSC95652  Polypodium calirhiza Andrea Pickart 2002-4-5 39 Humboldt Lanphere Dunes 15 Comment
  CAS-BOT-BC76844  Polypodium glycyrrhiza Donald Branscomb 1959-2-1 s.n. Humboldt Trinidad Comment
  CAS-BOT-BC76875  Polypodium glycyrrhiza M. S. Jussel 1931-5-2 94 Humboldt Sylvandale, 8 miles N of Garverville. Comment
  UC1746694  Polypodium glycyrrhiza R. M. and A. F. Tryon Jun 1958 5560 Humboldt NW of Weott; S fork of the Eel River Comment
  SEINET181191 Image available Polypodium scouleri Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15047 Humboldt 20 miles north of Eureka Comment
  HSC1113  Polypodium scouleri D. E. Anderson 1961-8-11 1723 Humboldt E of HSC campus Comment
  UC526770  Polypogon interruptus Joseph P. Tracy 1927-7-16 8261 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC45224  Polypogon monspeliensis M. Alcasas 1978-5-27 106 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  UC1440063  Polystichum californicum Danin & H. G. Baker 1960-8-14 614 a Humboldt ca. 1 mi toward Garberville from Myers Flat (Nelson Grove); Humboldt Redwoods State Park Comment
  HSC72980  Polystichum imbricans Gail Newton 1980-7-15 1578 Humboldt Near Sims Mtn. 1311 Comment
  HSC40256  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt 3 mi. W of Arcata Comment
  HSC41301  Polystichum munitum Brad Klipfel 1974-7-27 500 Humboldt Horse Mtn. Comment
  HSC79450  Polystichum munitum Kenneth Clark 1980-6-14 674 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  HSC93265  Polystichum munitum Gordon Leppig 1998-3-11 716 Humboldt Redwood Park, near Jolly Giant Cr. 91 Comment
  CAS-BOT-BC453764  Potamogeton natans Doris K. Kildale 1926-6-6 2124 Humboldt Gold Bluffs Comment
  SEINET3837233  Potamogeton natans Unknownnown 1949-8-9 1229 Humboldt Marshy Pond 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  RSA246822  Potamogeton pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  CAS-BOT-BC143072  Potentilla anserina subsp. pacifica Kenneth Clark 1980-5-10 652 Humboldt Western beach of Point Delgada 3 Comment
  HSC102125  Potentilla drummondii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1029 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC99437  Potentilla drummondii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 86 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC492177  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC1198686  Potentilla gracilis var. gracilis Joseph P. Tracy 1914-7-5 4556 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  NY436379  Potentilla laxiflora V. K. Chesnut 1888-7-23 s.n. Humboldt Hy-Am-Pum. Comment
  HSC97913  Prosartes hookeri Cara Witte 2007-6-13 268 Humboldt Along Forest Service Rd. 5N04. Approximately 1 mile east of intersection to Grouse Mountain Lookout. 1534 Comment
  SBBG980  Prosartes hookeri H. and M. Dearing 1933-5-16 254 Humboldt Weott Comment
  HSC45241  Prosartes hookeri Thomas W. Nelson, Jane P. Nelson 1977-7-1 3553 Humboldt Along Blanket Creek, N side of ridge between Bear and Blanket Creeks 1463 Comment
  UCD139801  Prosartes hookeri Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River. Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  HSC15481  Prosartes smithii K. P. St. John 1965-5-5 12 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  UC449938  Prunella vulgaris var. lanceolata Mrs. M. H. Manning 1900-1 Humboldt near Hupa; near Hupa Comment
  UC577375  Prunella vulgaris var. lanceolata Joseph P. Tracy 1932-7-13 10524 Humboldt Corral Prairie Trinity Summit; , Corral Prairie 1584 Comment
  UCLA49214  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1196732  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-22 13487 Humboldt at crossing of Iaqua-Bridgeville road North Yager Creek 396 Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  HSC40252  Pseudognaphalium stramineum Linda M. Barker 1976-8-24 1685 Humboldt 3 mi. W of Arcata Comment
  HSC37672  Pseudognaphalium stramineum R. Sutherland 1976-8-19 8 .19876 Humboldt 259 Comment
  HSC74454  Pseudognaphalium thermale Gail Newton 1980-8-10 2008 Humboldt Near Blake Mtn. 1798 Comment
  HSC102507  Pseudotsuga menziesii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1492 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC40124  Pteridium aquilinum var. pubescens Thomas W. Nelson, James Nelson 1976-7-28 3073 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  UCD92898  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt at Eureka. 3 Comment
  HSC40515  Pyrola asarifolia subsp. asarifolia M. A. Baker 1977-5-14 289 Humboldt Along Patrick's Point Drive 1/2 mi. N of Trinidad 30 Comment
  HSC76594  Pyrola dentata Teresa Prendusi 1981-7-9 205 Humboldt Near Cedar Camp 1268 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  UC56318  Pyrola picta Joseph Burtt Davy 1899-6-11 5420 Humboldt Hubbard's Station to Elk Prairie Comment
  UCD117815  Pyrola picta D. C. Hagar 1957-6-17 L 8 Humboldt Happy Camp Mountain, 5 miles northeast of Salyer. 1280 Comment
  CAS-BOT-BC62631  Quercus chrysolepis Joseph P. Tracy 1931-5-17 9413 Humboldt Trinity River Valley opposite Willow Creek 152 Comment
  HSC41267  Quercus chrysolepis Brad Klipfel 1974-7-23 461 Humboldt Horse Mtn. Comment
  HSC41342  Quercus chrysolepis Brad Klipfel 1974-8-2 504 Humboldt Horse Mtn. Comment
  UC1196532  Quercus chrysolepis Joseph P. Tracy 1916-9-5 4775 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  CAS-BOT-BC94315  Quercus garryana Doris K. Kildale 1927-6-25 3580 Humboldt Ettersburg Comment
  HSC60100  Quercus garryana M. A. Baker 1977-5-8 271 Humboldt Gray's Falls Comment
  RSA134145  Quercus garryana var. garryana Percy C. Everett 1959-10-24 23955 Humboldt 4.7 mi. s. from Bluff Creek, Hwy. 96 from Orleans to Weitchpec. 122 Comment
  UCD46652  Quercus kelloggii R. N. Raynor 1935-4-15 s.n. Humboldt Fort Seward. Comment
  UC1196512  Quercus sadleriana Joseph P. Tracy 1935-7-23 14155 Humboldt lower end of Brett Hole Trinity Summit, Brett Hole 1584 Comment
  UC1225942  Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC104538  Quercus vacciniifolia D. E. Breedlove 1961-7-4 648 Humboldt 7 miles W of Willow Creek on US 299 521 Comment
  HSC41330  Quercus vacciniifolia Brad Klipfel 1974-9-17 573 Humboldt Horse Mtn. Comment
  CAS-BOT-BC379460  Ranunculus alismifolius Volney Rattan 1883-6-1 s.n. Humboldt Landslide ponds on the divide between Mad River and Redwood Creek Comment
  UC160948  Ranunculus alismifolius var. alismellus Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5767 Humboldt Trinity Summit Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  BLMAR364  Ranunculus californicus Jennifer Anthony-Wheeler 2003-5-21 364 Humboldt South Spit, Disturbed ground on west side 3 Comment
  SEINET13716687  Ranunculus californicus Unknown 1916-4-30 4681 Humboldt Around Humboldt Bay Comment
  JEPS60699  Ranunculus occidentalis W. L. Jepson 1934-5-7 16703 Humboldt Buckeye Prairie Bull Creek Comment
  UC1368470  Ranunculus occidentalis R. K. Gierisch and D. H. Esplin 1969-7-1 3529 Humboldt Grouse Mtn. Six Rivers National Forest Comment
  UC1196246  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1930-6-29 8817 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of its nw slope, in stream-bed) 762 Comment
  HSC90641  Ranunculus repens Gail Newton 1982-6-10 3613 Humboldt Elk River Wildlife Area, Eureka Comment
  POM118709  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UCD16181  Ranunculus sardous J. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Rd. Comment
  HSC100621  Ranunculus tenellus Carl C. Marshall May 1886 222 Humboldt Damp woods. Comment
  HSC56011  Ranunculus uncinatus Gilbert Muth 1979-7-31 11494 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  JEPS55000  Ranunculus uncinatus Joseph P. Tracy 1916-5-7 4687 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC6887  Raphanus sativus S. J. Hawks 1965-4-3 12 Humboldt W of Eureka City Airport Comment
  HSC34802  Raphanus sativus Scott M. Kruse 1975-4-9 3 Humboldt Old Arcata Rd. and Chester Way, Arcata 3 Comment
  JEPS42054  Rhamnus californica Lincoln Constance 1934-6-13 872 Humboldt just below Redwood Hwy. (e bank of South Fork Eel River, n Dyerville Flat); South Fork Eel River, Bull Creek Region, Dyerville Flat 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
  JEPS42034  Rhamnus rubra Lincoln Constance 1934-6-4 814 Humboldt Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  HSC7829  Rhododendron columbianum W. R. Brigham 1962-5-19 7 Humboldt S of Big Lagoon. Comment
  CAS-BOT-BC56615  Rhododendron macrophyllum Clarence R. Quick 1959-7-24 59 -24 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC200383  Rhododendron occidentale var. paludosum Doris K. Kildale 1925-4-19 618 Humboldt Liscom Hill near Essex, Lower Mad River Comment
  CAS-BOT-BC200385  Rhododendron occidentale var. paludosum Doris K. Kildale 1928-7-1 5305 Humboldt French Camp - Orick-Martin's [Martins] Ferry road Comment
  HSC103228  Ribes binominatum Jade Paget-Seekins 2010-6-13 19 Humboldt Groves Prairie. From the campsite next to the prairie walk almost to the end of the prairie, turn right, walk down the slope towards the creek. 1254 Comment
  RSA167293  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Grouse Mountain; at Cold Springs . 1433 Comment
  HSC103224  Ribes inerme var. klamathense Jade Paget-Seekins 2010-5-20 16 Humboldt Off Forest Route 16 (between Big Bar and Hayfork) , approx. 0.6 miles up the 4N29. 1028 Comment
  CAS-BOT-BC176808  Ribes laxiflorum Doris K. Kildale 1926-3-24 1681 Humboldt Ryan Slough - on road to Occidental Ranch Comment
  POM237433  Ribes laxiflorum S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  HSC20312  Ribes menziesii R. E. Thill 1965-5-1 25 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  RSA0021771  Ribes menziesii Doris K. Kildale 1927-2-22 s.n. Humboldt Bucksport, near Eureka. Comment
  CAS-BOT-BC198902  Ribes roezlii var. cruentum Kenneth Clark 1980-3-27 55 Humboldt North fork Dead Man's Gulch, Shelter Cove 82 Comment
  CAS-BOT-BC198904  Ribes roezlii var. cruentum Peter H. Raven; R. Snow 1958-7-20 13630 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  CAS-BOT-BC211977  Ribes sanguineum Joseph P. Tracy 1949-8-11 18450 Humboldt Hungry Hollow, Bald Mountain 762 Comment
  HSC20339  Ribes sanguineum Jack Rockwell 1962-5-4 7 Humboldt S side of Hwy 427 Comment
  UC1198913  Ribes sanguineum Joseph P. Tracy 1928-4-22 8411 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  RSA0018244  Ribes sanguineum S. Ganley 1971-5-29 661 Humboldt Highway 299, along Trinity River. 457 Comment
  CAS-BOT-BC144680  Ribes sanguineum var. glutinosum L. B. Kildale 1930-9-9 10405 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC144682  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC59439  Ribes sanguineum var. glutinosum Kenneth Clark 1979-4-2 22 Humboldt 0.1 mi. E of end of Granite Ave, Arcata 30 Comment
  RSA0018245  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside the Eel River just north of the terminus of Singley Rd. Comment
  CDA25580  Ribes sanguineum var. sanguineum Gordon Leppig 1998-6-1 875 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  UC463025  Ribes victoris E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  RSA0020899  Ribes viscosissimum John H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  UC166087  Rigiopappus leptocladus Joseph P. Tracy 1911-7-7 3405 Humboldt between Willow Creek and Campbell Creek (viz ridge n of Willow Creek near the summit); Northern Coast Ranges, Brannan Mountain 914 Comment
  UC1561989  Romanzoffia californica Barbara Ertter with Thomas J. Delendick 1987-5-16 6937 Humboldt ca. 20 airmiles e. Arcata (3. mi. e. of Berry Summit on Hwy. 299, s. side of rd. above Willow Creek) 800 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
  HSC44064  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1977-6-19 3506 Humboldt Above Alder Springs 1585 Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC146528  Rosa gymnocarpa M. S. Jussel 1931-5-2 67 Humboldt 20 miles north of Garberville Comment
  HSC47952  Rosa gymnocarpa Brad Klipfel 1974-7-27 493 Humboldt Horse Mtn. Comment
  UC1199027  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14887 Humboldt Bear River Ridge 609 Comment
  HSC99307  Rosa rubiginosa C. B. Wolf 1927-8-30 1229 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  JEPS47714  Rubus leucodermis W. L. Jepson 1932-8-8 16532 Humboldt Perrott Creek Comment
  RSA46847  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat. Comment
  HSC56140  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11961 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC89607  Rubus parviflorus M. Roantree 1985-8-25 11 Humboldt E side of Trinidad Head along paved rd. Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UCR275117  Rubus parviflorus Charity A. Hartshorn 2016-5-14 29 Humboldt Arcata Community Forest 244 Comment
  UCR3512  Rubus parviflorus David Whistler, H. M. Whistler 1964-8-1 640801- 5 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  SEINET8254189  Rubus parviflorus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka. Comment
  CAS-BOT-BC156723  Rubus spectabilis Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CAS-BOT-BC156725  Rubus spectabilis Doris K. Kildale 1927-4-10 3081 Humboldt Prairie Creek, between Orick & Requa Comment
  RSA20972  Rubus spectabilis Carl B. Wolf 1937-6-15 8828 Humboldt Redwood Hwy. 1.2 mile S of Russ Grove. 61 Comment
  HSC12759  Rubus ursinus M. J. Athey 1970-11-5 20 Humboldt Havenway in Westhaven, Trinidad Comment
  HSC57022  Rubus ursinus Overton, Butler 1979-7-24 9637 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1128669  Rubus ursinus R. Stahelin 1933-5-15 19521 Humboldt Freshwater Eureka Quad. Comment
  UC1334749  Rubus ursinus R. S. Woglum 1938-8-28 2041 Humboldt Trinidad Comment
  RSA89567  Rubus vitifolius Philip A. Munz 1954-7-23 19865 Humboldt 5 miles SE of Carlotta Comment
  SEINET5710904  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC36230  Rumex acetosella John Rehling 1975-5-5 58 Humboldt HSU campus Comment
  CAS-BOT-BC421747  Rumex conglomeratus Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC48689  Rumex crispus Brad Klipfel 1973-7-31 260 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC672924  Rumex maritimus Harold E. Parks and Joseph P. Tracy 1934-10-13 11150 Humboldt Big Lagoon 6 Comment
  UC1191279  Rumex salicifolius var. transitorius Malcolm A. Nobs and S. Galen Smith 1958-8-9 1237 Humboldt s end Blue Lake (town) (on Mad River); Mad River 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
  HSC100868  Rytidosperma penicillatum J. P. Smith Sep 2005 12151 Humboldt Trinidad Head. 61 Comment
  HSC9564  Rytidosperma penicillatum True Hoyle 1967-6-24 26167 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  UC709432 Image available Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt sheep pasture near Hungry Hollow on Bald Mt. 609 Comment
  HSC77919  Sagina decumbens subsp. occidentalis L. P. Janeway, Paul Wilson 1984-5-25 818 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  POM318824  Salicornia Patricia Wilder 1968-8-21 4416 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  HSC62891  Salicornia depressa J. M. DiTomaso 1979-5-20 1066 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  HSC69636  Salicornia depressa R. Kalal 1980-5-8 22 Humboldt Foster Rd. near Arcata 6 Comment
  CAS-BOT-BC129887  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  UC1173607  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14269 Humboldt meadows at Waterdog Lakes; Trinity Summit 1828 Comment
  UC490566  Salix exigua var. hindsiana Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River valley; Northern Coast Ranges 152 Comment
  HSC100648  Salix flavescens Carl C. Marshall Mar 1887 390 Humboldt Humboldt Hill. Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107716  Salix hookeriana Doris K. Kildale 1926-7-11 2364 Humboldt Mouth of Bear River - Capetown Comment
  CHSC9657  Salix hookeriana E. L. Smith 1971-8-18 1027 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC96696  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20150  Salix hookeriana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC40862  Salix hookeriana Linda M. Barker 1976-4-30 1422 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
  POM161042  Salix hookeriana Joseph P. Tracy 1926-11-21 7831 Humboldt Near mouth of Little River. 6 Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1196632  Salix hookeriana J. P. Tracy 1901-3-31 996 Humboldt Immediate vicinity of Eureka 0 Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC469129  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481263  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481271  Salix hookeriana Harold E. Parks 1931-5-28 1018 Humboldt Little River Lagoon Comment
  UC481379  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 905 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC512122  Salix hookeriana Harold E. Parks and Joseph P. Tracy 1933-3-19 11007 Humboldt 2 mi w Bridgeville; Van Duzen River 228 Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  UC519342  Salix hookeriana Joseph P. Tracy 1933-10-8 13087 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCD111036  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt 3 miles west of Arcata. Comment
  POM219699  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 955 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  UC906709  Salix laevigata Harold E. Parks and Joseph P. Tracy 1942-5-16 11567 Humboldt vicinity of Garberville 152 Comment
  HSC96610  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2210 Humboldt Eureka, edge of PALCO Marsh at W end of W Hawthorne St. 3 Comment
  CAS-BOT-BC107578  Salix lasiolepis Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107596  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  HSC96597  Salix lasiolepis Gordon Leppig 2003-2-22 1812 Humboldt Arcata Marsh, NE corner of log pond 3 Comment
  JEPS12931  Salix lasiolepis Joseph P. Tracy 1931-5-31 9328 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  SBBG57890  Salix lasiolepis C. R. Ball, H. E. Parks, J. P. Tracey 1932-5-17 1324 Humboldt W slope of Berry's Mtn, E of Redwood Crk 762 Comment
  UC1196612  Salix lasiolepis Joseph P. Tracy 1926-8-12 7759 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469419  Salix lasiolepis Joseph P. Tracy 1929-3-16 8530 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC469436  Salix lasiolepis Joseph P. Tracy 1931-10-12 9730 Humboldt lower foothills of n.w. slope Buck Mt.; North Coast Ranges, Buck Mt. 762 Comment
  UC481182  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC490483  Salix lasiolepis Joseph P. Tracy 1932-9-5 10775 Humboldt upper Mattole Valley Northern Coast Ranges, upper Mattole Valley 152 Comment
  UC490544  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC504020  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC506403  Salix lasiolepis Joseph P. Tracy 1932-6-4 10127 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506405  Salix lasiolepis Joseph P. Tracy 1932-10-2 10859 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC506504  Salix lasiolepis Joseph P. Tracy 1932-8-21 10358 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC512118  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mountain 762 Comment
  UC519330  Salix lasiolepis Joseph P. Tracy 1933-5-20 12266 Humboldt Mattole River, near Petrolia 15 Comment
  SEINET12003293  Salix lasiolepis J. P. Tracy 1950-1 18623 Humboldt Van Duzen River, 10 mi SE of Dinsmore's, 4 mi SE of Kuntz Comment
  CAS-BOT-BC107410  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3148 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC107412  Salix lasiolepis var. lasiolepis Alice Eastwood 1907-4-21 24 Humboldt Trinidad Comment
  POM214864  Salix lasiolepis var. sandbergii H. E. Parks, Joseph P. Tracy 1933-3-19 11005 Humboldt On Van Duzen River. 2 miles E of Bridgeville. 229 Comment
  CAS-BOT-BC128202  Salix lucida Doris K. Kildale 1927-3-20 2926 Humboldt Stevens Grove - South Fork of Eel River near Miranda Comment
  CAS-BOT-BC125609  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt Along Willow Creek (Tributary of Trinity River) near its mouth 182 Comment
  CAS-BOT-BC125613  Salix melanopsis Doris K. Kildale 1928-6-10 5084 Humboldt Strongs Station - Van Duzen River Comment
  CAS-BOT-BC125615  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  POM219685  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  UC212984  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC470449  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen R. 30 Comment
  UC481275  Salix melanopsis Harold E. Parks 1931-5-28 1027 Humboldt Little River Lagoon Comment
  UC481307  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481826  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490562  Salix melanopsis Joseph P. Tracy 1932-5-1 9875 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC519364  Salix melanopsis Joseph P. Tracy 1933-6-9 12533 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R. 30 Comment
  UC519374  Salix melanopsis Joseph P. Tracy 1933-6-9 12532 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  POM89803  Salix purpurea Joseph P. Tracy 1919-5-25 5137 Humboldt Humboldt Bay. Ryan's Slough 15 Comment
  UC212994  Salix purpurea Joseph P. Tracy 1920-2-29 5307 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay, Ryan's Slough 15 Comment
  JEPS12911  Salix scouleriana Joseph P. Tracy 1927-3-27 7846 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  SBBG57985  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  UC1196704  Salix scouleriana Joseph P. Tracy 1933-3-26 10942 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC481359  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Van Duzen R. <at> Little Larabee Bridge; Van Duzen R. 450 Comment
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  POM219690  Salix sessilifolia H. E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC128996  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Alton, Van Duzen River 30 Comment
  HSC90424  Salix sitchensis Jean Hanson 1980-3-8 8 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96587  Salix sitchensis Gordon Leppig 2003-2-4 1804 Humboldt NWR South Bay Unit 2 Comment
  JEPS14775  Salix sitchensis Joseph P. Tracy 1933-3-19 10930 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  SBBG57990  Salix sitchensis L. Rowntree 1931-7-25 Humboldt Carlotta Comment
  UC490493  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC504017  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  UC275297  Salsola tragus Joseph P. Tracy 1924-8-31 6838 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges 91 Comment
  RSA303565  Sambucus callicarpa J. R. Shevock 1972-3-26 1472 Humboldt Along Highway 101, near Patrick Pt. 106 Comment
  HSC98110  Sambucus mexicana Cara Witte 2007-6-27 362 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC56447  Sambucus nigra subsp. caerulea Griswold, Butler 1979-7-12 7197 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC59203  Sambucus racemosa var. racemosa Terry Roth 1979-4-21 15 Humboldt 0.4 mi. from Table Bluffs County Park on Table Bluffs Rd. 15 Comment
  UC28611  Sambucus racemosa var. racemosa J. P. Tracy 1899-5-1 296 Humboldt Eureka Comment
  HSC19726  Sanguisorba minor D. E. Anderson 1965-5-1 3577 Humboldt Along Trinity River at Hoopa Comment
  HSC12342  Sanguisorba minor Steve Dorei 1970-10-20 112 Humboldt Along Plaza Ave. SW of Laurel Dr. 46 Comment
  UC154052  Sanicula arctopoides J. P. Tracy 1900-6-5 852 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  UC1197109  Sanicula bipinnatifida Joseph P. Tracy 1927-5-8 7989 Humboldt Garberville 152 Comment
  HSC68612  Sanicula crassicaulis Jacqueline Greenleaf 1980-7-16 245 Humboldt Near Buck Mountain. 1250 Comment
  UC1197098  Sanicula crassicaulis J. P. Tracy 1900-6-25 865 Humboldt immediate vicinity of Eureka 0 Comment
  UC1197100  Sanicula crassicaulis Joseph P. Tracy 1927-5-15 8034 Humboldt Trinity River Valley near the South Fork; Trinity River Valley 182 Comment
  RSA167410  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 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
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  HSC21644  Sanicula tuberosa Elrid H. Spinas 1948-5-15 9 Humboldt Horse Mtn. Comment
  HSC98590  Sanicula tuberosa Cara Witte 2008-6-9 692 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1503 Comment
  HSC99067  Sanicula tuberosa C. Witte 2007-5-21 54 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  JEPS62814  Satureja douglasii W. L. Jepson 1902-7-1 1966 Humboldt Berry's Ranch Redwood Creek Comment
  UC1198879  Saxifraga californica Joseph P. Tracy 1927-4-2 7882 Humboldt facing South Fork Eel River ( Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC1198882  Saxifraga marshallii Joseph P. Tracy 1937-7-24 15511 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  HSC7445  Schoenoplectus americanus J. W. Johnson 1962-4-18 1271 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  HSC85847  Schoenoplectus americanus L. P. Janeway 1983-9-24 702 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  UC1152056  Scirpus microcarpus Joseph P. Tracy 1950-8-7 19269 Humboldt meadow at Box Camp (Trinity Summit); , meadow at Box Camp 1463 Comment
  JEPS75308  Scirpus tabernaemontani H. E. Parks and Joseph P. Tracy 1931-5-17 9421 Humboldt Lack Pond Trinity River Valley, Lack Pond (opposite Willow Creek) 152 Comment
  CAS-BOT-BC517413  Scoliopus bigelovii Doris K. Kildale 1927-3-19 2903 Humboldt Luffenholtz Creek near Trinidad Comment
  CAS-BOT-BC517415  Scoliopus bigelovii Doris K. Kildale 1926-2-28 1520 Humboldt Kneeland Prairie Road at the watering trough 609 Comment
  UC1222533  Scoliopus bigelovii Joseph P. Tracy 1950-4-20 18611 Humboldt 1 mi. w. Dinsmore's (along Van Duzen R., opposite Buck Mt.); Van Duzen R. 762 Comment
  UC1103134  Scribneria bolanderi Joseph P. Tracy 1932-6-26 10275 Humboldt North Coast Ranges, Fort Baker Ranch Fort Baker Ranch Fort Baker Ranch; North Coast Ranges, Fort Baker Ranch 762 Comment
  SEINET12330006  Scrophularia californica F. H. Utech 1986-1 86 -407 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC97304  Scutellaria antirrhinoides Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 4 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  UC1239704  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3851 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1239708  Scutellaria antirrhinoides Joseph P. Tracy 1935-6-23 13966 Humboldt French Camp Ridge 1066 Comment
  RSA43682  Scutellaria antirrhinoides H. M. Pollard 1948-7-27 s.n. Humboldt Road to Red Cap Creek near Orleans. 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
  HSC65962  Sedum laxum subsp. flavidum Gail Newton 1980-7-15 1549 Humboldt Near Sims Mtn. 1311 Comment
  UC524120  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt mouth of Little River mouth Little River Comment
  RSA0074769  Sedum spathulifolium F. W. Peirson 1923-7-11 3957 Humboldt About 12 miles S of Orick. Comment
  HSC6481  Sedum spathulifolium var. spathulifolium B. R. Templeton 1962-5-24 Humboldt W side of Berry Summit Comment
  UC249773  Selaginella wallacei Joseph P. Tracy 1924-3-9 6607 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC449997  Senecio glomeratus Joseph P. Tracy 5117 Humboldt Eureka Comment
  UC302177  Senecio integerrimus var. major Joseph P. Tracy 1926-5-15 7480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223157  Senecio integerrimus var. major Joseph P. Tracy 1950-6-15 18793 Humboldt 7 mi n Harris (Jenk's Ranch); Mail Ridge Comment
  RSA167251  Senecio jacobaea Joseph P. Tracy 1946-8-18 17626 Humboldt East side of Big Lagoon Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook Comment
  UC1223019  Senecio minimus Joseph P. Tracy 1941-8-17 16991 Humboldt where logging of Douglas Fir is in progress, near HIgh Prairie; Bald Mountain Comment
  HSC74692  Senecio sylvaticus Gail Newton 1981-7-22 2266 Humboldt Near Bug Creek 1375 Comment
  CAS-BOT-BC364221  Senecio sylvaticus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC205164  Senecio triangularis Joseph P. Tracy 1919-9-22 5263 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA168840  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  SBBG56416  Sequoia sempervirens D. B. Rogers 1937-10-1 Humboldt Scotia, 37 mi S of Eureka Comment
  UC64433  Sequoia sempervirens H. M. Hall 1899-10-1 Humboldt Eel River Comment
  UC667965  Sequoia sempervirens Joseph P. Tracy 1935-12-8 14764 Humboldt near Korbel 304 Comment
  UC813082  Sequoia sempervirens W. G. Solheim 1933-8-2 707 Humboldt Humboldt State Redwood Park Humboldt Redwoods State Park (near Garberville) Comment
  CAS-BOT-BC205568  Sidalcea malachroides Doris K. Kildale 1927-7-2 3628 Humboldt Lord-Ellis road Comment
  HSC16013  Sidalcea malachroides E. W. Styskel 1963-5-16 29 Humboldt 3 mi. SE of Korbel, Snow Camp Rd. 290 Comment
  JEPS79986  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  HSC75946  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-24 9725 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC103268  Sidalcea malviflora subsp. patula John McRae 2014-5-8 Humboldt South of Fortuna; north side of Hwy. 36, approx. 3/4 mi. east of intersection with Hwy 101. 18 Comment
  JEPS67258  Sidalcea oregana subsp. eximia W. L. Jepson 1921-8-7 9324 Humboldt Dow's Prairie Comment
  UC146134 Image available Sidalcea oregana subsp. eximia Joseph P. Tracy 1907-6-25 2578 Humboldt valley of Elk River Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC82112  Silene bolanderi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5256 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC852804  Silene californica Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  POM264848  Silene californica Lincoln Constance, A. A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton. Comment
  HSC39220  Silene campanulata subsp. glandulosa D. E. Anderson, J. P. Smith 1971-7-6 - 1322 Humboldt On Horse Mtn. Comment
  HSC57065  Silene douglasii Overton, Butler 1979-7-24 9735 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC62895  Silene gallica J. M. DiTomaso 1979-5-20 1053 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  JEPS23246  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  UC1115828  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  POM193013  Silene hookeri subsp. bolanderi H. E. Parks, Joseph P. Tracy 1930-5-25 0791 Humboldt Laribee Valley. 793 Comment
  CAS-BOT-BC181235  Silene hookeri subsp. bolanderi T. Worley; M. Mill; F. Rosenthal 1985-4-20 37 Humboldt Burnt Ranch Campground, Shasta-Trinity Nat'l Forest 432 Comment
  CAS-BOT-BC389049  Silene laciniata subsp. californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC389068  Silene laciniata subsp. californica M. S. Jussel 1931-5-2 s.n. Humboldt 26 miles N. of Garberville Comment
  HSC60133  Silene laciniata subsp. californica M. A. Baker 1978-5-6 479 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC389262  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  HSC67883  Silybum marianum J. P. Smith 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1198794  Sisymbrium officinale Joseph P. Tracy 1904-7-24 2125 Humboldt immediate vicinity of Eureka 0 Comment
  HSC26642  Sisymbrium officinale Thomas W. Nelson 1971-5-9 432 Humboldt Hwy. 36 opposite Goat Rock, 2 mi. W of Bridgeville Comment
  UC175305  Sisyrinchium bellum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3587 Humboldt near Hydesville; Northern Coast Region 30 Comment
  RSA18062  Sisyrinchium californicum Carl B. Wolf 1927-8-22 789 Humboldt Big Lagoon Comment
  HSC91943  Solanum americanum E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC41004  Solanum parishii J. O. Sawyer 1975-10-17 2715 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  CAS-BOT-BC154206  Solanum umbelliferum L. Abrams 1918-6-16 7132 Humboldt Willow Creek Comment
  UC26254  Solanum umbelliferum Harley P. Chandler 1901-6-1 1351 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC577351  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15313 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  UC1196153  Solanum umbelliferum Joseph P. Tracy 1934-6-20 13240 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  SD58226  Solidago canadensis subsp. elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1399 Comment
  UC1541617  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  HSC40262  Solidago spathulata Linda M. Barker 1976-8-2 1670 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  POM179780  Solidago spathulata H. P. Chandler 1901-05 1203 Humboldt Humboldt Bay. 30 Comment
  UCR122358  Solidago spathulata var. spathulata George K. Helmkamp, E. A. Helmkamp 2001-7-8 7023 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC127575  Soliva sessilis Harley P. Chandler May 1901 1166 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  HSC32524  Soliva sessilis David Johnson 1974-5-2 74 Humboldt Mad River Co. Park, mouth of the Mad River; by the parking lot Comment
  HSC6219  Sonchus asper Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  CAS-BOT-BC374429  Sonchus asper Huron H. Smith 1911-1-1 3785 Humboldt Unspecified Comment
  HSC6218  Sonchus asper S. R. Johnson 1965-3-15 11 Humboldt 1 mi. N of Luffenholtz Beach Comment
  RSA430519  Sonchus oleraceus Lyman Benson 1929-7-12 1796 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC176182  Sparganium emersum var. emersum Joseph P. Tracy 1913-9-9 4405 Humboldt near mouth of Little River; Northern Coast Ranges 3 Comment
  HSC89260  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  HSC103560  Spartium junceum Spadoni 2002-6-26 70828 Humboldt Along roadside in the vicinity of Garberville. Comment
  CAS-BOT-BC390302  Spergularia macrotheca var. macrotheca Alice Eastwood; John Thomas Howell 1936-7-3 3782 Humboldt Eureka Comment
  CAS-BOT-BC390611  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC70955  Spergularia rubra Thomas W. Nelson 1977-6-15 3430 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  CAS-BOT-BC149618  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  HSC19751  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  HSC23024  Spiraea douglasii D. La Conte 1970-10-23 14 Humboldt Big Lagoon Comment
  RSA246715  Spiraea douglasii Robert F. Thorne, Percy C. Everett 1965-8-7 35195 Humboldt At S end of Big Lagoon. 2 Comment
  UC1222183  Spiranthes porrifolia Joseph P. Tracy 1950-6-23 18870 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  UC1196401  Spiranthes romanzoffiana Joseph P. Tracy 1941-8-24 17037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC37591  Spiranthes romanzoffiana J. D. Ackerman 1976-8-6 784 Humboldt Sand Hills across from Samoa Blvd. at intersection of Samoa Blvd. and tunroff to Samoa Bridge Comment
  SEINET5196066  Stachys ajugoides Unknown 2002-8-22 87 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  JEPS62958  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC1239732  Stachys ajugoides var. rigida Joseph P. Tracy 1935-7-25 14243 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC577322  Stachys ajugoides var. rigida Joseph P. Tracy 1933-6-24 12611 Humboldt Big Lagoon 3 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA70839  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  RSA82582  Stachys albens F. W. Peirson 1923-7-11 3830 Humboldt 7 miles N of Arcata. Comment
  HSC12560  Stachys arvensis D. La Conte 1970-11-22 11 Humboldt Comment
  HSC76525  Stachys rigida Teresa Prendusi 1981-7-24 488 Humboldt Near Whiteys Peak 1585 Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  RSA82586  Stachys rigida subsp. rigida F. W. Peirson 1932-7-7 10260 Humboldt Roadside, on Willow Creek, a few miles Willow Creek P.O. Comment
  SD93025  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 218 Humboldt Highway 101 at Duncan Grove. 91 Comment
  HSC76521  Stachys rigida var. rigida Michael Ericksen 1981-8-21 1083 Humboldt Near Dan East Cabin 1609 Comment
  UC161057  Stellaria borealis subsp. sitchana Joseph P. Tracy 1900-5-22 795 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC4273  Stellaria media D. K. Smith 1968-1-16 2 Humboldt Bank of Crannell Rd. Comment
  HSC90683  Stellaria media Gail Newton 1982-5-1 2500 Humboldt Eureka, Elk River Wildlife Area Comment
  HSC57914  Stenanthium occidentale Gilbert Muth 1979-7-31 11524 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC40608  Stipa lemmonii Thomas W. Nelson 1976-6-14 2702 Humboldt S of Lassic Peak (Signal Peak) 1646 Comment
  HSC74748  Streptanthus tortuosus Gail Newton 1981-7-22 2260 Humboldt Near Bug Creek 1375 Comment
  JEPS54025  Streptanthus tortuosus var. orbiculatus W. L. Jepson Jul 16 1902-Jul 23 1902 2118 Humboldt Trinity Summit 2133 Comment
  HSC32317  Streptanthus tortuosus var. tortuosus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5655 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC58025  Streptopus amplexifolius G. L. Clifton 1979-7-31 11833 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC562306  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC169337  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1908-6 2883 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC40856  Symphoricarpos mollis Thomas W. Nelson 1976-7-9 2991 Humboldt Along ridge S of E peak of Mtn. Lassic group, (Signal Pk.). 1707 Comment
  UC602502  Symphoricarpos mollis Joseph P. Tracy 1936-6-28 15013 Humboldt near Murphy Meadows (Bald Mt); Bald Mt. 975 Comment
  HSC58385  Symphyotrichum bracteolatum Terry Griswold 1979-7-25 10923 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CAS-BOT-BC99169  Symphyotrichum chilense L. R. Abrams 1927-8-31 12054 Humboldt Marshes along highway between Eureka and Arcata Comment
  HSC5048  Symphyotrichum chilense Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  HSC5049  Symphyotrichum chilense Paul Shields 1955-9-20 Humboldt HSC Campus Comment
  UC186451  Symphyotrichum chilense Joseph P. Tracy 1915-9-12 4672 Humboldt Laribee Creek (mouth of) Northern Coast Ranges 91 Comment
  SEINET11115992  Symphytum asperum Unknown 1949-1 18358 Humboldt CALIFORNIA PLANTS HUMBOLDT COUNTY Salmon Creek Valley, south end of Humboldt Bay; naturalized native of Asia. Comment
  JEPS26264  Synthyris reniformis Joseph P. Tracy 1948-8-15 18116 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 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
  CHSC68504  Synthyris reniformis var. cordata Vernon H. Oswald 1997-4-10 8331 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  CAS-BOT-BC376731  Tanacetum bipinnatum Peter H. Raven 1962-8-26 18075 Humboldt Dunes just south of Samoa Comment
  HSC6251  Tanacetum bipinnatum Jerry Parker 1968-9-24 72 Humboldt Clam Beach, 1/4 mi. S of Strawberry Creek Comment
  UC127603  Tanacetum camphoratum J. Burtt Davy 1899-6-30 6183 Humboldt near Ferndale (North Coast Ranges); North Coast Ranges Comment
  CHSC35576  Tauschia kelloggii Jacqueline Greenleaf 1980-5-23 90 Humboldt Near Dinsmores. 430 Comment
  SD61058  Taxus brevifolia Darley F. Howe 1964-8-7 Humboldt Mill Creek Road, 8.2 miles from Highway #96, Hoopa Valley 1064 Comment
  UC667973  Taxus brevifolia Joseph P. Tracy 1936-9-20 15186 Humboldt along Capoe Creek; Humboldt State Redwood Park 91 Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  UC1225746  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1948-6-13 18037 Humboldt 7 mi nw Blocksburg; Larrabee Creek 304 Comment
  UC1222570  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley Buck Mountain (nw slope of mt., lower end of valley) 1066 Comment
  HSC35757  Thermopsis gracilis Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt French Camp, Bald Hills. Comment
  UC1198813  Thlaspi californicum Joseph P. Tracy 1921-5-30 5483 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC10967  Thlaspi montanum var. montanum Harley P. Chandler June, 1901 1377 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 182 Comment
  CAS-BOT-BC88323  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  CAS-BOT-BC88326  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC45087  Thysanocarpus curvipes R. Sutherland 1978-4-23 28 .23478 Humboldt 640 Comment
  HSC98749  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-7 841 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 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
  JEPS49709  Tiarella trifoliata var. unifoliata W. L. Jepson 1927-7-3 12359 Humboldt near Dyerville (Bull Creek); South Fork Eel River, Bull Creek Comment
  SD64143  Tiarella trifoliata var. unifoliata Walter Bertsch 1953-7-30 219 Humboldt Hiwy.101 Duncan Grove 75 Comment
  UC154147  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning 1901-7-31 322 Humboldt near Hupa (Eureka Trail); near Hupa, Eureka Trail Comment
  UC64644  Tiarella trifoliata var. unifoliata H. M. Hall 1899-9 Humboldt Redwood forests along Eel River; along Eel River Comment
  JEPS62181  Tofieldia occidentalis subsp. occidentalis Hilda W. Grinnell 1932-7-12 14 Humboldt below McKay Camp (South Fork Mountain) Comment
  HSC27852  Tolmiea diplomenziesii Clifton Raymond Chesbrough 1973-6-19 60 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  CAS-BOT-BC447610  Tolmiea menziesii Harley P. Chandler 1901-5-1 1268 Humboldt Redwood Belt 457 Comment
  CAS-BOT-BC447612  Tolmiea menziesii Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC147887  Tonella tenella Joseph P. Tracy 1906-5-6 2442 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC169179  Toxicodendron diversilobum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC98085  Tragopogon dubius Cara Witte 2007-7-3 400 Humboldt National Forest 1. 2 miles south from intersection with 5N04. 1561 Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  UC484155  Trichostema laxum E. R. Johnson Aug 1929 Humboldt along the Eel River Comment
  UC577371  Trichostema laxum Joseph P. Tracy 1926-10-15 7815 Humboldt South Fork of Trinity River, mountain slopes W of mouth 304 Comment
  RSA167428  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  HSC45615  Trientalis latifolia Diane L. Reed 1978-5-7 49 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  UC1561370  Trientalis latifolia Barbara Ertter with Thomas J. Delendick 1987-5-16 6942 Humboldt 3 mi e of Berry Summit (on Hwy 299, 20 air mi e of Arcata, on s side of road above Willow Creek); Hwy 299 243 Comment
  UC1197213  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1912-6-9 3668 Humboldt Alton Northern Coast Ranges Comment
  UC495666  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1927-5-14 8007 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CHSC84526  Trifolium arvense John Dittes; Josephine Guardino 2003-6-7 2003 -65 Humboldt Klamath Range; ca. 7.7 air-mile southwest of Orleans, ca. 4.1 air-miles northeast of confluence of Trinity River and Klamath River, ca. 0.3, air-mile northwest of confluence of Klamath River and Aikens Creek. Along entrance road to Aikens Creek Campground. 106 Comment
  UC1223511  Trifolium barbigerum J. P. Tracy 1942-5-16 17332 Humboldt vicinity Garberville 152 Comment
  UC16425  Trifolium barbigerum J. Burtt Davy 1899-6-17 5603 Humboldt Arcata Comment
  RSA168906  Trifolium barbigerum Joseph P. Tracy 1948-6-13 18039 Humboldt Along Larabee Creek, 7 miles northwest of Blocksburg and where the road comes near trhe creek, halfway between Bridgeville and Blocksburg. Comment
  HSC45121  Trifolium bifidum R. Sutherland 1978-5-19 17 .19578 Humboldt 183 Comment
  HSC71453  Trifolium campestre J. P. Smith 1973-5-26 6808 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1197490  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-6-26 10273 Humboldt Fort Baker Ranch Northern Coast Ranges 762 Comment
  HSC45172  Trifolium dichotomum R. Sutherland 1978-4-23 32 .23478 Humboldt Kinsey Ridge 640 Comment
  HSC70358  Trifolium dubium M. A. Baker 1980-6-7 1867 Humboldt Near Ammon Creek 732 Comment
  JEPS79998  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1223469  Trifolium dubium Joseph P. Tracy 1948-6-10 180066 Humboldt w Trinidad (beach) 3 Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC1223458  Trifolium fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt s Cape Ridge (near ocean); Cape Mendocino Comment
  UC303192  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  POM20265  Trifolium fucatum var. fucatum L. R. Abrams 1916-7-11 6036 Humboldt North of Grizzly Creek on Van Duzon River. Comment
  RSA21656  Trifolium fucatum var. fucatum Carl B. Wolf 1937-6-14 8811 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC1223454  Trifolium gracilentum Joseph P. Tracy 1934-5-13 13203 Humboldt near Samoa Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC40872  Trifolium longipes Thomas W. Nelson 1976-7-9 3011 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  UC495656  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Northern Coast Ranges. Kneeland Prairie. 762 Comment
  UC165536  Trifolium macraei Harley P. Chandler May, 1901 1148 Humboldt Eureka North Coast Ranges 30 Comment
  UC495662  Trifolium macraei Joseph P. Tracy 1932-5-10 9935 Humboldt Bear River edge Northern Coast Ranges 609 Comment
  HSC89906  Trifolium macraei Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Just N of the Hutton-Fernstrom Root border. Comment
  HSC71451  Trifolium microcephalum J. P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC495694  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9869 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  HSC45144  Trifolium microdon R. Sutherland 1978-5-19 15 .19578 Humboldt 165 Comment
  UC495684  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt between Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  HSC45125  Trifolium obtusiflorum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  UC1197485  Trifolium obtusiflorum Joseph P. Tracy 1911-6-29 3267 Humboldt near Hydesville (Van Duzen River); Northern Coast Region 60 Comment
  UC1197499  Trifolium oliganthum Joseph P. Tracy 1906-6-10 2471 Humboldt near Wrangleton (Kneeland Prairie); Northern Coast Ranges 152 Comment
  UC160937  Trifolium oliganthum Joseph P. Tracy 1903-5-23 1895 Humboldt Alder Point Eel River; Northern Coast Ranges 152 Comment
  RSA168851  Trifolium olivaceum var. olivaceum Joseph P. Tracy 1950-7-1 18945 Humboldt Near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. 1220 Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  HSC15108  Trifolium repens W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  HSC48378  Trifolium subterraneum Mark Flippo 1978-4-18 39 Humboldt McKinleyville, Bella Vista Hill Comment
  UCSC000416  Trifolium variegatum H. S. Yates 1936-6-18 5733 Humboldt 2 miles N. of Big Lagoon - Rocky Pt. 30 Comment
  UC495676  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1103457  Trifolium variegatum var. variegatum Joseph P. Tracy 1925-8-9 7227 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC1197563  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-6-5 8103 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC16760  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5874 Humboldt Martin's Ferry Comment
  HSC103851  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1851 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  HSC2149  Trifolium wormskioldii J. P. Tracy 1926-7-25 7750 Humboldt Big Lagoon Comment
  HSC27894  Trifolium wormskioldii Clifton Raymond Chesbrough 1973-6-19 64 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC303196  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC201372  Trifolium wormskioldii Joseph P. Tracy 1918-7-3 4991 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  HSC23091  Triglochin maritima Norman Dennis 1965-6-8 101 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  RSA249527  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35214 Humboldt Samoa Peninsula: near sea level Comment
  RSA239713  Triglochin maritima Larry E. DeBuhr 1973-4-23 998 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC15685  Trillium albidum D. E. Anderson 1965-5-22 3729 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  SDSU19196  Trillium albidum Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3006 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
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  HSC99359  Trillium kurabayashii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 8 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  SDSU11977  Trillium ovatum D. R. Harvey 1938-8-13 2253 Humboldt Redwood Park Comment
  HSC15691  Trillium ovatum D. E. Anderson 1962-5-11 Humboldt E of HSC campus Comment
  HSC15695  Trillium ovatum Francis Winter 1960-5-23 Humboldt 2 mi. E of Korbel, Korbel-Maple Creek Rd. 183 Comment
  RSA168951  Trillium ovatum Joseph P. Tracy 1950-4-20 18613 Humboldt 1 mile west of Dinsmores on Van Duzen River. Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  UC1103503  Trillium ovatum Joseph P. Tracy 1933-6-13 12587 Humboldt near summit of rd. from Hoopa w. to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  SEINET10458940  Triodanis biflora Tracy TRACY 2198 Humboldt EUREKA Comment
  JEPS26219  Triphysaria eriantha subsp. eriantha J. P. Tracy 1911-5-30 3207 Humboldt at Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  JEPS26224  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1899-4-9 136 Humboldt region about Humboldt Bay Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  CHSC31269  Triphysaria eriantha subsp. rosea Mark Stopher 1980-4-2 45 Humboldt In sand dunes on Samoa Oeninsula near Humboldt Bay. 4 Comment
  HSC99105  Triphysaria pusilla Cara Witte 2008-6-15 734 Humboldt Coldspring Camp. 1394 Comment
  CDA41904  Triphysaria pusilla April A. Allard & Gregory D. O Connell 2005-6-1 8 Humboldt Coldspring Camp, 7.4 miles south of Hwy. 299 on NF1. Comment
  HSC31558  Triphysaria versicolor subsp. faucibarbata Glenn McGourty 1974-4-27 31 Humboldt Along side of Mattole River Comment
  CAS-BOT-BC199623  Trisetum canescens H. E. Parks; Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt. 1432 Comment
  HSC89902  Trisetum canescens Leonel Arguello 1989-7-22 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  SEINET5424014  Trisetum canescens J. B. Davy, W. C. Blasdale 5036 Humboldt Walkers Valley, hwy 25 Comment
  CAS-BOT-BC193516  Trisetum cernuum Joseph P. Tracy 1935-5-24 13814 Humboldt Eureka 60 Comment
  HSC13416  Trisetum cernuum J. A. Waller 1965-5-16 39 Humboldt Open field near Big Lagoon. Comment
  LA10929  Trisetum cernuum Joseph P. Tracy; 1935-5-24 13814 Humboldt Eureka 0 Comment
  HSC60131  Triteleia bridgesii M. A. Baker 1978-5-6 482 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC1197723  Triteleia bridgesii Joseph P. Tracy 1911-7-7 3413 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  JEPS560  Triteleia bridgesii Joseph P. Tracy 1929-7-4 8616 Humboldt French Camp 1066 Comment
  JEPS5665  Triteleia bridgesii W. L. Jepson Jul 16 1902-Jul 23 1902 2006 Humboldt Hupa to Mud Spring; Trinity Summit 1219 Comment
  UC15027  Triteleia bridgesii J. Burtt Davy 1899-6-19 5643 Humboldt Hoopa Mtn North Coast Ranges Comment
  HSC53803  Triteleia hyacinthina Griswold, Butler 1979-7-10 6233 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC1222691  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt in meadow near Sproston Place (on the road to the Albee Place, 3 mi s Burr Valley); w side Buck Mountain 1158 Comment
  UC15025  Triteleia hyacinthina J. P. Tracy 1901-6-23 1160 Humboldt wet ground near Ryan's Slough Hill; immediate vicinity of Eureka 0 Comment
  UC666915  Triteleia hyacinthina Joseph P. Tracy 1930-7-6 8843 Humboldt in moist places Kneeland Prairie Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  HSC13439  Triticum aestivum L. M. Malloy 1965-5-20 30 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  UC1103154  Triticum vulgare Joseph P. Tracy 1916-8-20 4751 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC100450  Troximon heterophyllum Carl C. Marshall May 1887 494 Humboldt Kneeland Prairie. Comment
  CAS-BOT-BC85894  Tsuga heterophylla L. R. Abrams 1918-6-17 7211 Humboldt Between Briar's Resort and Bald Mt. Comment
  SEINET11092948  Turritis glabra Unknown 1906-5-13 2456 Humboldt Plants of Northern Coast Region of California SAND DUNES OF OCEAN BEACH AT HUMBOLDT BAY Comment
  UC1193224  Umbellularia californica R. H. Neuns 1950-10-12 139 Humboldt Queens Peak, Quadrangle 28D4 Queens Peak 701 Comment
  CAS-BOT-BC404069  Urtica dioica subsp. holosericea Henry M. Pollard 1956-10-13 s.n. Humboldt Bank of Klamath River at Orleans Hotel, Orleans Comment
  CAS-BOT-BC193960  Vaccinium cespitosum Doris K. Kildale 1928-6-24 5302 Humboldt Foot of 3rd Street near Eureka Slough, Eureka Comment
  CAS-BOT-BC193962  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills Comment
  UC1197774  Vaccinium cespitosum J. P. Tracy 1901-4-21 1036 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  UC1197778  Vaccinium cespitosum Joseph P. Tracy 1925-7-5 7176 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC199323  Vaccinium ovatum Carl B. Wolf 1930-10-24 1761 Humboldt Along the Klamath River 2 miles below mouth of Salmon River 152 Comment
  CAS-BOT-BC199325  Vaccinium ovatum Ira L. Wiggins 1930-6-25 4613 Humboldt 2 miles north of Samoa Comment
  HSC12435  Vaccinium ovatum Gary J. Stebbins 1970-2-21 10 Humboldt Patricks Point State Park 38 Comment
  HSC60135  Vaccinium ovatum M. A. Baker 1977-5-1 286 Humboldt E of Humboldt State University. Comment
  HSC7906  Vaccinium ovatum J. W. Johnson 1962-3-25 1418 Humboldt Arcata, along section line, Christenson Farm, Samoa Peninsula Comment
  JEPS58743  Vaccinium ovatum J. P. Tracy 1904-4-17 2017 Humboldt immediate vicinity Eureka 0 Comment
  UC1173686  Vaccinium ovatum Joseph P. Tracy 1939-5-30 16304 Humboldt Dinsmore's, along Van Duzen River Van Duzen River 731 Comment
  UC630486  Vaccinium ovatum H. E. and S. T. Parks Apr 1937 5638 Humboldt Spruce Cove Trinidad Comment
  UC719767  Vaccinium ovatum Rogers McVaugh 1941-8-3 6218 Humboldt 1.25 mi s Headquarters Patrick Point State Park Comment
  UC726577  Vaccinium ovatum A. A. Heller 1937-6-12 15917 Humboldt 3 mi n Trinidad (Bishop Pine Lodge) Comment
  JEPS66688  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  UC1197763  Vaccinium parvifolium Joseph P. Tracy 1938-6-13 15900 Humboldt Horse Mountain 1432 Comment
  JEPS66684  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dogs Lake Trinity Summit 1828 Comment
  UC1239583  Valeriana sitchensis subsp. scouleri Mrs. Archie Cathey 1933-5-6 Humboldt Eel Rock 91 Comment
  CAS-BOT-BC76048  Vancouveria hexandra D. E. Breedlove 1962-6-8 3068 Humboldt Along U.S. Highway 101, 8 miles north of Orick. 60 Comment
  HSC41305  Vancouveria planipetala Brad Klipfel 1974-7-23 468 Humboldt Horse Mtn. Comment
  CAS-BOT-BC528853  Veratrum californicum Doris K. Kildale 1925-8-16 1179 Humboldt Trinity Summit Elk Horn Prairie, wet meadow 1524 Comment
  HSC102165  Veratrum viride M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1075 Humboldt Patterson Meadows 1566 Comment
  HSC39719  Verbena lasiostachys D. E. Anderson, J. P. Smith 1971-6-28 - 1258 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC40825  Verbena lasiostachys var. lasiostachys Thomas W. Nelson, James Nelson 1976-7-26 3044 Humboldt S of Mount Lassic (Signal Peak) 1707 Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC15258  Vicia americana var. americana J. P. Tracy 1935-5-26 13908 Humboldt Iaqua 610 Comment
  HSC98838  Vicia americana var. americana Cara Witte 2008-7-16 914 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC160988  Vicia americana var. americana Joseph P. Tracy 1911-7-7 3431 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  UC175633  Vicia americana var. americana Joseph P. Tracy 1913-6-20 4224 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  JEPS66158  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  HSC15268  Vicia gigantea S. J. Hawks 1965-5-18 75 Humboldt Clam Beach. Comment
  UC495713  Vicia hirsuta Joseph P. Tracy 1932-10-30 10899 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  UCD108675  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC71618  Vicia hirsuta J. P. Smith 1973-5-26 6812 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC100544  Vicia sativa Carl C. Marshall Sep 1887 442 Humboldt Salmon Creek. Comment
  PASA271  Vicia sativa Frank W. Peirson 1926-7-13 Humboldt Mad River, vicinity of Blue Lake Comment
  HSC90813  Vicia sativa subsp. nigra Gail Newton 1982-5-5 2531 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1197471  Vicia sativa subsp. sativa Joseph P. Tracy 1915-6-6 4651 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC15278  Vicia sativa subsp. sativa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC37957  Vinca major Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC21758  Viola adunca F. B. Plett 1963-3-9 5 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC31741  Viola adunca Donald Spalinger 1974-5-12 58 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  UC1761516  Viola adunca Milo S. Baker 1923-7-30 158 Humboldt Iaqua, 1/2 mi from Fredricksons house (near head of Yager Creek) 670 Comment
  CAS-BOT-BC263953  Viola adunca V. Rattan 1882-6-1 s.n. Humboldt Kneeland RIver Comment
  HSC21778  Viola cuneata Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  UCSB18722  Viola cuneata Jensen, Karen 1965-4-15 Humboldt 0.2 km. W of U.S. Highway 101, by Miranda turnoff 91 Comment
  UC1761601  Viola glabella H. E. Parks 1924-8-9 2447 Humboldt Carlotta Comment
  UC502935  Viola glabella Joseph P. Tracy 1932-7-17 10682 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC26335  Viola glabella Thomas W. Nelson 1971-3-30 363 Humboldt Beside Howe Creek Comment
  HSC70232  Viola hallii M. A. Baker 1980-6-8 1894 Humboldt Near Buck Flat. 1554 Comment
  RSA249333  Viola hallii D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-14 5614 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  RSA79371  Viola praemorsa subsp. praemorsa E. K. Balls, Lee W. Lenz 1952-5-12 17198 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  HSC51328  Viola purpurea subsp. purpurea G. L. Clifton, Overton 1979-6-3 3762 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 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
  UC164805  Viola sempervirens Joseph P. Tracy 1904-4-3 2006 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC34806  Viola sempervirens Lon Hall 1975-3-27 301 Humboldt Near Shelter Cove, above Bear Creek 366 Comment
  SEINET11154271  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  SEINET11978066  Viola sempervirens Unknown 1936-1 Humboldt Comment
  UCD16884  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt California. Humboldt County: on highway near Blue Lake. Comment
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Jun 14 2012
  HSC90693  Vulpia bromoides Gail Newton 1982-5-5 3559 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC9839  Vulpia bromoides J. W. Johnson 1962-4-18 1266 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  UCD93557  Vulpia bromoides A. H. Murphy 1951-5-15 33 Humboldt 1 mile southeast of Whitlow-Fruitland Road junction on Whitlow Road. Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  UC1145196  Vulpia microstachys var. pauciflora Joseph P. Tracy 1939-4-29 16247 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  UC525673  Vulpia microstachys var. pauciflora Joseph P. Tracy 1932-5-22 10116 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UCD94718  Vulpia myuros A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3456 Humboldt 2 miles north of Orleans. Klamath River. Comment
  UC38479  Vulpia myuros var. hirsuta Harley P. Chandler May 1901 1120 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UC525655  Vulpia myuros var. hirsuta Joseph P. Tracy 1933-6-13 12598 Humboldt w of Hoopa (near summit on road to Bair's); Hoopa Mountain 1066 Comment
  HSC24380  Whipplea modesta J. O. Sawyer 1970-6-24 2242 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98362  Whipplea modesta T. Jimerson, J. Pageau 1979-6-12 528 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  HSC28932  Woodwardia fimbriata Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  UC1223300  Wyethia angustifolia Joseph P. Tracy 1950-9-10 19357 Humboldt Bear River Ridge 609 Comment
  HSC76215  Wyethia longicaulis Overton, Butler 1979-7-24 9727 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC82033  Wyethia longicaulis Thomas W. Nelson, James Nelson 1980-6-10 5401 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  RSA167419  Wyethia longicaulis Joseph P. Tracy 1950-7-1 18942 Humboldt Summit near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. Comment
  CAS-BOT-BC382122  Xanthium strumarium Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC76424  Xerophyllum tenax Denis Kearns 1981-6-24 29 Humboldt Near Cedar Camp 1219 Comment
  HSC98041  Xerophyllum tenax Cara Witte 2007-7-3 399 Humboldt National Forest 1. 1/2 mile from intersection with 6N35. 1484 Comment
  RSA12560  Xerophyllum tenax Carl B. Wolf 1934-7-2 5879 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  SD56768  Zeltnera muehlenbergii Darley F. Howe 1963-7-8 3622 Humboldt 8.2 miles west of Bridgeville on California 36; Van Duzen Road. 91 Comment
  CAS-BOT-BC532738  Zigadenus micranthus Harold E. Parks; Joseph P. Tracy 1934-6-27 11041 Humboldt Horse Mountain 1432 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



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