Search Results — 2000 specimen records retrieved (1384 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 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
  HSC41313  Abies concolor Brad Klipfel 1974-9-2 543 Humboldt Horse Mountain Comment
  HSC54223  Abies concolor Griswold, Butler 1979-7-12 7288 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC54516  Abies concolor Overton, Butler 1979-7-23 9432 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC13030  Abies grandis D. Santana, C. Kline Oct 1970 3 Humboldt HSC Campus Comment
  SDSU1549  Abies grandis W. A. Bemis 1964-4-11 254 Humboldt Mad River, HWY 299. 76 Comment
  CAS-BOT-BC383852  Abronia latifolia A. Eastwood 1923-8-14 12325 Humboldt Samoa Comment
  RSA0025083  Abronia latifolia Gary D. Wallace, Larry E. DeBuhr 1972-5-23 1083 Humboldt Along the beach at Freshwater Lagoon just south of Orick. Comment
  RSA0025088  Abronia latifolia M. B. Dunkle 1936-8-18 4817 Humboldt Moonstone Beach, N. Arcata. Comment
  RSA0025092  Abronia latifolia Mildred E. Mathias 1929-8-4 769 Humboldt Along the coast near Eureka. Comment
  CAS-BOT-BC330546  Acer circinatum Joseph P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake 30 Comment
  SEINET3026049  Acer circinatum John P. Young 1921-9-18 s.n. Humboldt Orick Comment
  UC1222158  Acer glabrum var. glabrum Joseph P. Tracy 1950-7-1 18947 Humboldt near Clear Lake (back of Cold Springs, Cold slope); Grouse Mountain, at Cold Springs, near Clear Lake 1432 Comment
  UC170173  Acer glabrum var. glabrum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5821 Humboldt Trinity Summit Comment
  HSC57459  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-26 10292 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC331594  Acer macrophyllum C. B. Wolf; Johnson 1934-10-11 6756 Humboldt Redwood Highway, Eel River, 6.4 mi N of Humboldt Redwood Park Comment
  HSC95908  Acer macrophyllum Will Ferrand 2002-4-20 25 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  CAS-BOT-BC28588  Achillea millefolium David D. Keck 1938-8-5 4765 Humboldt Clam Beach Comment
  HSC37924  Achillea millefolium Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UCSB30612  Achillea millefolium Edwards, David 1974-7-26 Humboldt At the top of the E. bank of the Mad River, at its junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  RSA416222  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  RSA12436  Achlys triphylla C. B. Wolf 1934-7-2 5857 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  UC40043  Achnatherum lemmonii Bolander 1866-4 Humboldt Red Mountain Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC552774  Achnatherum occidentale subsp. californicum H. E. Parks and Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mt. 1432 Comment
  HSC44755  Acmispon micranthus Maralyn O'Meara 1972-6-8 84 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  SDSU4308  Acmispon parviflorus D. F. Howe 1962-5-22 3307 Humboldt 0.7 miles east of Orick on Bald Mt. road. 396 Comment
  UCD104321  Acmispon parviflorus P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  JEPS5767  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp Comment
  HSC76192  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-24 9790 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC54873  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-25 10842 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  BLMAR360  Actaea rubra Clara Sander 2003-7-7 360 Humboldt King range, Roadside 18 Comment
  SEINET12094714  Actaea rubra F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -285 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  RSA21189  Actaea rubra subsp. arguta Carl B. Wolf 1937-8-11 9148 Humboldt N Coast Range, Van Duzen River, 2.7 miles W of Dinsmores. 457 Comment
  HSC35607  Adenocaulon bicolor Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2019 Humboldt Just E of Redwood National Park along Bald Hills Rd. Comment
  HSC76345  Adenocaulon bicolor Denis Kearns 1981-7-23 383 Humboldt Near Whiteys Peak 732 Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  RSA416320  Adenocaulon bicolor Thomas W. Nelson, Jane P. Nelson 1977-7-1 3564 Humboldt Unsurveyed section east of sec. 25, Along north side of ridge between Bear and Blanket creeks. 1494 Comment
  HSC956  Adiantum aleuticum H. E. Parks, S. T. Parks May 1930 749 Humboldt Along Van Duzen River Comment
  HSC44049  Adiantum aleuticum Thomas W. Nelson, Jane Nelson 1977-6-19 3494 Humboldt Above Alder Springs, N of pond 1585 Comment
  SD92989  Adiantum aleuticum W. Bertsch 1953-7-29 213 Humboldt Near Weott 60 Comment
  SEINET11722736  Adiantum aleuticum E. A. York 1990-1-10 2672 Humboldt USGS Redwood Field Station, Arcata Comment
  UCD137170  Adiantum aleuticum Lincoln Constance 1934-6-1 776 Humboldt Bull Creek Region, South Fork Eel River. Comment
  UC811115  Adiantum jordanii George Neville Jones 1936-3-22 8662 Humboldt s fork Eel River near Garberville Comment
  CAS-BOT-BC202608  Aesculus californica Joseph P. Tracy 1941-6-15 16914 Humboldt Near Honeydew bridge. Mattole Valley 152 Comment
  HSC34743  Ageratina occidentalis Thomas W. Nelson 1974-7-19 1672 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA46781  Ageratina occidentalis Doris Kildale Gillespie 1937-8-12 15253 Humboldt South Fork Mountain. Comment
  SD62068  Agoseris apargioides var. maritima Darley F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  HSC75954  Agoseris grandiflora Overton, Butler 1979-7-24 9734 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET11854997  Agoseris grandiflora J. P. Tracy 1950-1 19047 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC176416  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1912-7-31 3946 Humboldt near summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC71062  Agoseris heterophylla Thomas W. Nelson, Jane P. Nelson 1977-5-30 3396 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC92278  Agoseris heterophylla var. heterophylla W. W. Price 1900-6-30 Humboldt Mad River Comment
  UC275460  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 D Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1222766  Agoseris retrorsa Joseph P. Tracy 1950-7-1 18952 Humboldt Grouse Mountain 1219 Comment
  UC1541538  Agrostis Harold E. Parks May 1933 4301 a Humboldt Spruce Cove Trinidad Comment
  UCR136660  Agrostis alba H. M. Pollard 1948-7-21 s.n. Humboldt Klamath River banks near Orleans 122 Comment
  CDA1703  Agrostis capillaris T. C. Fuller 1962-8-6 9362 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  CAS-BOT-BC127280  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad. 60 Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC127287  Agrostis exarata Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  CAS-BOT-BC127300  Agrostis exarata Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins. Western foothills of Chaparral Mountain. 457 Comment
  JEPS75421  Agrostis exarata W. L. Jepson 1932-7-30 16451 Humboldt in redwood forest Bull Creek 121 Comment
  RSA25802  Agrostis exarata C. B. Wolf 1941-7-28 4344 Humboldt Big Lagoon, south side and W. of Redwood Highway. 6 Comment
  UC526891  Agrostis exarata Joseph P. Tracy 1932-6-14 10145 Humboldt mountainside w mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  UC552713  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 1/2 Humboldt Fort Seward 106 Comment
  UCD52234  Agrostis exarata var. pacifica A. H. Murphy 1948-7-29 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  HSC74891  Agrostis hallii J. P. Smith 1977-7-3 9234 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  SEINET201012  Agrostis hallii Joesph P Tracy 1908-7-30 2882 Humboldt Van Duzen River opposite buck mountain Comment
  UC526881  Agrostis hallii Joseph P. Tracy 1925-8-22 7237 Humboldt North Fork of Eel River, around Humboldt Bay Northern Coast Region, Humboldt Bay 30 Comment
  UCD52557  Agrostis hallii P. B. Kennedy Date Unknown s.n. Humboldt Eureka. Comment
  UCD52687  Agrostis hallii H. S. Yates 1936-6-17 5698 Humboldt Lower N.W. slope of Buck Mt. 792 Comment
Read comments
Aug 22 2008
  HSC58760  Agrostis pallens Overton, Butler 1979-7-26 10056 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  HSC8802  Agrostis stolonifera John Warner Hosking 1966-8-6 Humboldt Aracata, HSU campus, near Wildlife Bldg. Comment
  UCD53517  Agrostis stolonifera P. B. Kennedy 1928-7-16 307 Humboldt Sea Cliff, nera Trinidad. Comment
  HSC74428  Aira caryophyllea Gail Newton 1980-8-10 2058 Humboldt Near Blake Mountain 1707 Comment
  UC630529  Aira caryophyllea H. E. and S. T. Parks June, 1936 5850 Humboldt Spruce Cove Trinidad Comment
  UCD55761  Aira caryophyllea Linda M. Barker 1976-4-30 1411 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1103305  Aira praecox Joseph P. Tracy 1935-6-8 13942 Humboldt Santa Clara Tract Northern Coast Ranges, Eureka 0 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
  UC594243  Allium amplectens S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3402 Humboldt crossing of Little Van Duzen River between Bridgeville and Dinsmore's; Little Van Duzen River 710 Comment
  UC666925  Allium amplectens Joseph P. Tracy 1936-6-17 14975 1/2 Humboldt Little Van Duzen River at highway crossing Little Van Duzen River 713 Comment
  HSC98507  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 433 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  HSC102616  Allium campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1603 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC67211  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-7-10 5440 Humboldt Along branch rd. off Swayback Ridge Rd., 0.5 mi. E of junction 1372 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
  HSC104412  Allium unifolium Adam N. Canter 2017-4-20 6 Humboldt BLM, Lost Coast Headland, Guthrie Creek 60 Comment
  SEINET12050176  Allium unifolium F. H. Utech 1986-1 86 -389 Humboldt ca 5 mi N of Shelter Cove Road on Kings Peak Road, near Tolkan Recreation Area 480 Comment
  SEINET12053631  Allium unifolium J. P. Tracy 1950-1 18890 Humboldt Burr Valley Comment
  HSC41327  Allotropa virgata Brad W. Klipfel 1974-8-2 513 Humboldt Horse Mtn. Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  CAS-BOT-BC169548  Alnus rubra H. E. Parks; S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  OBI6019  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Redwood hwy , 4-1/2 mi N of fortuna on the road to Eureka Comment
  UC1197947  Alnus rubra Joseph P. Tracy 1923-2-25 6151 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  UC1222279  Alnus rubra Joseph P. Tracy 1950-7-8 18982 Humboldt Willow Creek Canyon; along Trinity Highway Comment
  UCR27989  Alnus rubra A. C. Sanders 1981-8-6 2299 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  UCSC000176  Alnus rubra G. T. Nordstrom 1933-6-30 1425 Humboldt 1 mile N.N.E. of Orick 3 Comment
  JEPS79806  Alnus viridis subsp. sinuata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9080 Humboldt near McKay Camp (along stream); Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM89806  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. Comment
  UC1103310  Alopecurus aequalis Joseph P. Tracy 1932-8-21 10360 Humboldt Three Cabins North Coast Ranges, w. foothills Chaparral Mt., Three Cabins 457 Comment
  UC187254  Alopecurus aequalis Joseph P. Tracy 1911-7-7 3400 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1199258  Ambrosia artemisiifolia Joseph P. Tracy 1936-9-18 15187 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  SEINET11855057  Ambrosia artemisiifolia J. P. Tracy 1950-1 19313 Humboldt Frank Graham's place. Trinity River Valley, at Willow Creek 152 Comment
  OBI35980  Ambrosia chamissonis David J. Keil 1983-7-1 17289 Humboldt Ca 8 mi NW of Petrolia along Mattole Rd. rd immed adj to seashore Comment
  RSA355694  Ambrosia chamissonis var. chamissonis Dave Kelly, Walter Wisura 1986-7-30 4133 Humboldt On sand dunes near Manila, Samoa peninsula W of Arcata Comment
  HSC100625  Amelanchier alnifolia Carl C. Marshall Jun 1886 292 Humboldt Bald Hills. Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  CAS-BOT-BC142891  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-5-2 2953 Humboldt Near Eureka 152 Comment
  CAS-BOT-BC143011  Amelanchier utahensis John Thomas Howell; Alice Eastwood 1937-6-23 4800 Humboldt Little Van Duzen River Comment
  OBI35862  Amelanchier utahensis David J. Keil 1983-7-2 17332 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  RSA385128  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa sand dunes. Comment
  UCD55994  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET10468276  Ammophila arenaria Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2504 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville. Vast colony of yellow Lupinus arboreus. 3 Comment
  UC1191079  Amsinckia eastwoodiae H. E. Parks March, 1933 4283 Humboldt Spruce Cove Trinidad Comment
  HSC34951  Amsinckia intermedia Thomas W. Nelson 1975-5-24 1860 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC153944  Anagallis arvensis J. P. Tracy 1906-6-17 2490 Humboldt immediate vicinity Eureka 0 Comment
  HSC17826  Anagallis arvensis C. Haley 1937-9-22 Humboldt Elk River Comment
  CAS-BOT-BC45136  Anaphalis margaritacea Doris K. Kildale 1925-8-17 1186 Humboldt Trinity Summit, Elk Horn Camp 1524 Comment
  HSC27042  Anaphalis margaritacea Brad Klipfel 1973-8-25 286 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  RSA167301  Anaphalis margaritacea Joseph P. Tracy 1950-9-10 19363 Humboldt On foothills of Cape Ridge. 0.5 mile S of town. 1 mile inland from Cape Mendocino. 61 Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  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
  UC13935  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
  CAS-BOT-BC391782  Anemone deltoidea W. R. Dudley 1899-6-21 s.n. Humboldt Below south fork of Eel River Comment
  HSC99580  Angelica genuflexa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 245 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
  UC582633  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC642307  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  HSC71419  Angelica hendersonii J. M. DiTomaso 1980-7-29 1797 Humboldt Elkshead, 2 mi N of Trinidad Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 Comment
  OBI9037  Angelica tomentosa Tracey Call, Viola Call 1966-8-1 2518 Humboldt 2.5 mi up Three Creek Rd. from Willows 427 Comment
  SEINET13943409 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 Comment
  HSC56950  Antennaria suffrutescens Overton, Butler 1979-7-23 9450 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC1199376  Anthemis cotula Joseph P. Tracy 1918-7-1 4962 Humboldt along Eel River from South Fork to Scotia Eel River 60 Comment
  HSC10102  Anthoxanthum occidentale E. W. Styskel 1963-4-20 19 Humboldt 3 mi SE of Korbel on Snow Camp Rd. 290 Comment
  CAS-BOT-BC137737  Anthoxanthum odoratum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CHSC91538  Anthoxanthum odoratum G. Douglas Barbe; T. C. Fuller 1974-6-17 1848 Humboldt North Coast Ranges. At 707 'L' Street, Eureka, behind CSAA (Calif State Automobile Assoc.) district office. Comment
  HSC5264  Anthoxanthum odoratum John Warner Hosking 1966-5-8 Humboldt Arcata bottomland, Arcata Comment
  HSC8944  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Humboldt State University campus. Comment
  SEINET198594  Anthoxanthum odoratum H. E. Parks, ST Parks 1952-4-30 24444 Humboldt Spruce Cove Trinidad Comment
  SBBG83248  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Rd, 9.1 mi S of jct with Mtn View Rd Comment
  UC902211  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1949-8-11 18468 Humboldt 2 to 6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  HSC41262  Apocynum androsaemifolium Brad Klipfel 1974-7-23 454 Humboldt Ridge running E of Horse Mtn. Comment
  JEPS49816  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt trail along e. bank of S. Fork of Eel N. Dyerville Flat; S. Fork Eel R., Bull Creek Region, N. Dyerville Flat 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
  HSC18040  Aquilegia formosa var. formosa Greg Bos 1965-5-2 235 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  HSC31631  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments
May 26 2016
  HSC56100  Aquilegia formosa var. truncata G. L. Clifton 1979-7-31 11823 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC6529  Arabis divaricarpa J. P. Tracy 1932-7-12 10391 Humboldt Trinity Summit 1524 Comment
  HSC57337  Arabis glabra Walter Overton, Butler 1979-7-26 10004 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  HSC58192  Arabis glabra G. L. Clifton, Griswold 1979-8-2 12289 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC57318  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-26 9373 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57667  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-25 10851 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC57653  Arabis lyallii G. L. Clifton, Terry Griswold 1979-7-25 10824 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC98836  Arabis subpinnatifida Cara Witte 2008-6-2 668 Humboldt 1/2 mile southeast of intersection National Forest 1 and 5N01. 1570 Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  RSA246789  Aralia californica R. F. Thorne, P. Everett 1965-8-5 35137 Humboldt Mt. Chamisal: below summit 579 Comment
  UC933379  Aralia californica Annie M. Alexander and Louise Kellogg 1948-9-3 5587 Humboldt Trinity R. near Hoopa Reservation; Trinity R. Comment
  UC915722  Arbutus menziesii W. L. Jepson 1903-6-23 50 Humboldt near Briceland Comment
  HSC100848  Arctostaphylos canescens J. P. Smith, J. O. Sawyer 2010-5-4 12813 Humboldt Along Bald Hills Road. 930 Comment
  CAS-BOT-BC23766  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point 30 Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  CAS-BOT-BC23817  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 30 Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  RSA622682  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27770 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UC397305  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6169 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UCD50673  Arctostaphylos columbiana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa; Big Hill Lookout Road. 1230 Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  CAS-BOT-BC23736  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11984826  Arctostaphylos glandulosa Unknown 1965-1 542 Humboldt on USAL Road, 1 mi N of junction of Four Corners Comment
  RSA632798  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27760 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UCD52077  Arctostaphylos manzanita Joseph P. Tracy 1939-4-29 16263 Humboldt Orleans. 121 Comment
  RSA47101  Arctostaphylos manzanita subsp. elegans Doris K. Kildale 1926-4-6 1718 Humboldt Dobbyns Creek along road from mail box to Log Cabin Ranch Comment
  CAS-BOT-BC24368  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-7-18 17285 Humboldt Garberville. 152 Comment
  CAS-BOT-BC24372  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 a Humboldt Near Ettesburg. Comment
  CAS-BOT-BC38835  Arctostaphylos manzanita subsp. manzanita P. C. Everett; E. K. Balls 1959-10-24 23954 Humboldt 6.8 mi. SW from Siskiyou-Humboldt Co. line, somesbar to Orleans. 152 Comment
  HSC98992  Arctostaphylos manzanita subsp. manzanita Cara Witte 2008-6-4 686 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  UC1198679  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-7-11 15417 Humboldt vicinity of Garberville 121 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  SBBG83932  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1173 Humboldt French Camp Ridge, 21.4 mi E of US 101 on Bald Hills Rd from Orick Comment
  SEINET11989092  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1174 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  UC585903  Arctostaphylos patula Joseph P. Tracy Jul 16 1930-Jul 19 1930 9055 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCD53433  Arctostaphylos patula A. E. Wieslander 1931-5-19 199 Humboldt Near Orleans. Comment
  CHSC591  Arctostaphylos uva-ursi 1930-3-30 Humboldt Comment
  RSA246678  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  CDA6803  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  UC668116  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1933-6-25 12624 Humboldt 2 to 5 mi e South Fork; Eel River 45 Comment
  UCD56445  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC16897  Armeria maritima subsp. californica J. R. Kahl 1962-5-13 33 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  HSC59096  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  HSC73701  Arnica discoidea M. A. Baker 1980-7-23 3142 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS20978  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie; Trinity Summit 1524 Comment
  UC129438  Arnica latifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5754 Humboldt Trinity Summit Comment
  SBBG7639  Artemisia douglasiana H. and M. Dearing 1939-5-26 3452 Humboldt N of Arcata Comment
  UC302288  Artemisia douglasiana Joseph P. Tracy 1926-9-6 7796 Humboldt near South Fork; Trinity River Valley Comment
  HSC4747  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  SD41467  Artemisia pycnocephala Edith A. Purer 1932-7-27 4123 Humboldt Samoa Comment
  CAS-BOT-BC97242  Artemisia suksdorfii Carl B. Wolf 1937-9-9 9303 Humboldt Coast, 4 1/2 mi. So. of Cape Mendocino 6 Comment
  CAS-BOT-BC453345  Aruncus dioicus var. vulgaris Doris K. Kildale 1930-6-1 9747 Humboldt Klamath River at Weitchpec Comment
  CAS-BOT-BC400534  Asarum caudatum Doris K. Kildale 1928-5-19 5183 Humboldt Chalk Mountain Comment
  HSC58082  Asarum caudatum G. L. Clifton, Griswold 1979-8-1 11986 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1198117  Asarum caudatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3618 Humboldt near Hydesville 60 Comment
  UC55774  Asarum caudatum P. E. Goddard 1901-7-27 117 Humboldt Trinity Summit Comment
  UC6180  Asarum caudatum J. Mello Feb 1897 Humboldt Eureka Comment
  RSA167427  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  HSC54217  Aspidotis densa Griswold, Butler 1979-7-12 7281 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  POM182350  Aspidotis densa Joseph P. Tracy 1912-7-26 3849 Humboldt Kneeland Prairie 762 Comment
  CDA42726  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Horse Mountain, Ammon Ridge Road 1 kilometer east of Titlow Hill Road. Comment
  CDA17341  Aster occidentalis P. Haggard 2004-8-15 PDR 1285931 Humboldt North Coast Ranges; Six Rivers National Forest, Friday Ridge Rd. 0 Comment
  RSA44410  Aster oregonensis H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  HSC92747  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 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
  SBBG69571  Asyneuma prenanthoides S. W. Hutchinson -Jun-1925 93 Humboldt Redwood Hwy 243 Comment
  UC1198292  Athysanus pusillus Joseph P. Tracy 1922-4-30 6016 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC4343  Atriplex leucophylla D. E. Anderson 1961-9-13 1809 Humboldt Big Lagoon County Park Comment
  HSC35625  Atriplex leucophylla Thomas W. Nelson, James Nelson 1975-8-5 2138 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  HSC79448  Avena barbata Kenneth Clark 1980-4-18 578 Humboldt Shelter Cove, along access trail to Dead Man's Gulch 107 Comment
  JEPS72923  Avena barbata Lincoln Constance 1934-6-18 901 Humboldt N. Dyerville Flat South Fork Eel River, Bull Creek Region (swamp border, near S. Fork R.R. sta. and P.O.) Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  CAS-BOT-BC99989  Balsamorhiza deltoidea Harold E. Parks; Joseph P. Tracy 1935-6-16 11282 Humboldt Buck Mt. Lower NW slopes 792 Comment
  UC1198286  Barbarea orthoceras Joseph P. Tracy 1906-5-6 2443 Humboldt hillside in Wolverton Gulch, near Hydesville 60 Comment
  HSC64813  Barbarea verna J. P. Smith, Steve Selva 1970-6-30 4125 Humboldt Comment
  CAS-BOT-BC106400  Bellis perennis R. Kent Beattie 1946-9-11 11875 Humboldt Redwood forest near Van Dusen River, one mile northwest of STrongs Station on Route 36 Comment
  HSC32388  Bellis perennis Linda M. Barker 1974-5-11 180 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  CAS-BOT-BC48154  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain - in cold wet meadow near high prairie 1066 Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC3349  Berberis nervosa John A. Dubois 1962-4-28 15 Humboldt 20 mi. E of Arcata Comment
  HSC41247  Berberis nervosa Brad Klipfel 1974-5-27 394 Humboldt Near Horse Mtn. Comment
  CAS-BOT-BC75811  Berberis pinnata Carl B. Wolf 1941-3-2 9989 Humboldt North Coast Ranges. Bull Creek-Petrolia Road. 0.25 mile south of Panther Gap. 548 Comment
  CAS-BOT-BC412987  Bistorta bistortoides Doris K. Kildale 1928-5-27 5936 Humboldt Kneeland Prairie 853 Comment
  SEINET11711335  Blechnum spicant K. S. Erdman 1970-1 4820 Humboldt Summit of Gold Bluffs on park road ca 2 mi W of US 101 at Berry Glen, Redwood National Park Comment
  SFV12198  Blennosperma nanum R. Gankin, W. R. Hildreth 1966-3-15 700 Humboldt Serpentine slopes of Klamath River Canyon. State Highway 96, 4.6 miles north of Hoopa. Comment
  UC492238  Boechera platysperma Joseph P. Tracy 1932-7-12 10458 Humboldt Head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  UC562687  Boechera retrofracta Joseph P. Tracy 1935-7-30 14379 Humboldt Salmon Summit 2103 Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC69759  Bolboschoenus robustus Thomas W. Nelson 1977-9-22 3748 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  HSC56238  Boykinia major Walter Overton 1979-8-1 12327 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC64874  Boykinia occidentalis J. P. Smith 1973-5-26 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC14479  Boykinia occidentalis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  CAS-BOT-BC420276  Boykinia occidentalis Doris K. Kildale 1927-6-25 3574 Humboldt Fearren's ranch between Thorn & Shelter Cove Comment
  HSC98977  Boykinia occidentalis Cara Witte 2008-7-28 958 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1641 Comment
  HSC37950  Brassica nigra Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  HSC23805  Brassica nigra R. A. Vanbianchi 1971-9-10 78 Humboldt Junction of Fieldbrook Rd. and old Hwy. 299 Comment
  CAS-BOT-BC106285  Brickellia californica Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  CAS-BOT-BC106293  Brickellia californica J. Clausen 1932-9-19 696 Humboldt Dyerville, Eel River, in dry river bed. Comment
  HSC5216  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork of Eel River, Richardson Grove Comment
  JEPS18641  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt 2 to 5 mi e of the South Fork, along Eel River South Fork Eel River (Camp Grant); Eel River 45 Comment
  UC535727  Brickellia californica Eleanor Armstrong 1934-8-20 1181 Humboldt Richardson Grove 121 Comment
  UC581796  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville 198 Comment
  RSA94123  Brickellia californica F. W. Peirson 1926-7-13 7048 Humboldt Mad River, vicinity of Blue Lake. Comment
  HSC104100  Briza maxima Kyle Brown 2015-3-20 39 Humboldt Along the Lost Coast Trail, at the mouth of Oak Creek 14 Comment
  HSC9084  Briza maxima Dennis Anderson 1965-5-8 3626 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  UC1145096  Briza maxima Joseph P. Tracy 1938-7-15 16061 Humboldt Bucksport; (adjacent to Eureka) 9 Comment
  UC526899  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua North Coast Ranges 762 Comment
  HSC38484  Briza minor Dennis Anderson, J. P. Smith 1971-6-18 - 1064 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  HSC84929  Briza minor R. N. Raynor 1935-6-7 Humboldt Ft. Seward Comment
  HSC99871  Briza minor Glenn W. K. Shelton 2010-7-7 9 Humboldt 6 mi. S of Kneeland Airport along Kneeland Rd. 658 Comment
  UC180488  Briza minor Joseph P. Tracy 1914-5-14 4442 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC72623  Brodiaea elegans subsp. elegans J. P. Smith 1977-7-3 9230 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC1197748  Brodiaea elegans subsp. elegans Joseph P. Tracy 1942-6-15 17163 Humboldt grassy bench 1/2 mi ne Garberville 304 Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 Comment
  SEINET4345214  Bromus carinatus J. B. Davy 1899-6-11 5408 Humboldt Summit above Hubbard Station Comment
  UC1103279  Bromus carinatus var. carinatus Joseph P. Tracy 1942-6-2 17097 Humboldt 2 mi n of Bridgeville 609 Comment
  UC1103286  Bromus carinatus var. maritimus Joseph P. Tracy 1933-6-6 12509 Humboldt Northern Coast Region, Trinidad Trinidad; Northern Coast Region, Trinidad 15 Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  CHSC10108  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Arcata. Along the lower lane below the W.M. Lanphere home, Samoa Peninsula. Comment
  HSC9285  Bromus diandrus R. E. Hafenfeld 1965-5-9 50 Humboldt Junction of County Rd. and Gold Bluff Beach Rd. Comment
  HSC9296  Bromus diandrus R. J. Vernimen 1963-3-25 16 Humboldt Clam Beach Lagoons, along railroad tracks Comment
  HSC9246  Bromus hordeaceus L. H. Myers 1963-5-17 36 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC9253  Bromus hordeaceus R. J. Vernimen 1963-4-27 42 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata, along logging road Comment
  UC34065  Bromus hordeaceus J. P. Tracy 1901-6-16 1146 Humboldt immediate vicinity of Eureka 0 Comment
  HSC70478  Bromus laevipes Gail Newton 1980-7-20 1634 Humboldt Near Bell Swamps 1426 Comment
  HSC39395  Bromus tectorum D. E. Anderson, J. P. Smith 1971-6-28 - 1248 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC1103268  Bromus vulgaris Joseph P. Tracy 1912-7-25 3817 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC167232  Bromus vulgaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5363 Humboldt near Harris (North Coast Ranges); North Coast Ranges Comment
  UC1199255  Cacaliopsis nardosmia Joseph P. Tracy 1908-6 2822 Humboldt nw slope of Buck Mountain Buck Mountain 1219 Comment
  UC175208  Cacaliopsis nardosmia Joseph P. Tracy 1913-6-17 4186 Humboldt Buck Mountain, near the summit Buck Mountain 1676 Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  HSC6604  Cakile maritima J. W. Johnson 1961-11-29 1415 Humboldt End of Ridge 3, Christenson Farm, Samoa Peninsula, Arcata Comment
  UCD114935  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt Just west of Trinidad and north, across isthmus from Trinidad Bay. Comment
  UCD114938  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt West of southern tip of Freshwater Lagoon. Comment
  CAS-BOT-BC185236  Calamagrostis koelerioides Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain. 1828 Comment
  UCR199655  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35345 Humboldt Northwestern; Outer North Coastal region, along Hwy 101 about 3 miles N of Eureka 2 Comment
  CHSC110706  Callitriche stagnalis Dean Wm. Taylor 2004-6-24 19136 Humboldt Clear Lake, along Titlow Hill Road. 1493 Comment
  HSC58124  Calocedrus decurrens G. L. Clifton, Griswold 1979-8-1 12108 Humboldt Near Horse Trail Ridge 1878 Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC1005668  Calocedrus decurrens Frank W. Gould 1939-5-30 827 Humboldt about 25 mi due e of Eureka (top of Horse Mountain); Horse Mountain 365 Comment
  HSC102081  Calochortus coeruleus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 983 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC100551  Calochortus pulchellus Carl C. Marshall May 1887 479 Humboldt S Humboldt. Comment
  HSC34998  Calochortus tolmiei Thomas W. Nelson 1975-5-24 1879 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA183584  Calochortus tolmiei D. E. Anderson 1965-5-15 3716 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC1197675  Calochortus tolmiei Joseph P. Tracy 1927-6-12 8148 Humboldt Horse Mountain 1280 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
  CAS-BOT-BC273317  Calycadenia fremontii Henry M. Pollard 1945-8-21 s.n. Humboldt Orleans to Somes Bar Comment
  UC405402  Calycadenia truncata Chesnut and Drew 1888-7-28 Humboldt Comment
  HSC97630  Calyptridium monospermum Cara Witte 2007-6-5 214 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  RSA394825  Calystegia soldanella E. A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  UC1197873  Calystegia soldanella J. P. Tracy 1900-7-4 882 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach at Samoa, opp. Eureka Comment
  UCD138340  Camassia leichtlinii subsp. suksdorfii Joseph P. Tracy 1942-5-16 17331 Humboldt Redway (near Garberville)/ 152 Comment
  RSA0116953  Camassia quamash subsp. linearis Frank W. Peirson 1923-7-11 3681 Humboldt 7 miles N of Arcata. Comment
  SEINET10452961  Camissonia Mary Susan Taylor 1990-8-22 Taylor 6071 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SEINET10453135  Camissonia cheiranthifolia Mary Merello 1993-6-19 Merello 664 Humboldt Along Petrolia-Capetown Road. Pacific Coastal dunes. 40 Comment
  HSC16440  Camissonia cheiranthifolia B. Francis 1964-5-19 6 Humboldt 0.5 mi. S of Fairhaven Comment
  RSA244988  Camissonia cheiranthifolia subsp. cheiranthifolia Norman Dennis 1965-6-8 104 Humboldt Samoa Peninsula along the W side of the Humboldt Bay. Comment
  CAS-BOT-BC160235  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Carl B. Wolf 1927-8-29 1221 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC160242  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  SEINET10462972  Campanula prenanthoides Overton 1979-8-2 OVERTON 12621 Humboldt Near Grogan Hole, on the Salmon Mountain quad., close to the town of Hoopa 1554 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
  SEINET10873254  Campanula prenanthoides Rogers McVaugh 1941-8-3 McVaugh 6214 Humboldt 3.5 miles south of Garberville, steep shaly roadside bank, in woods Comment
  SEINET10873268  Campanula prenanthoides Goddard GODDARD 686 Humboldt Blocksburg. Comment
  SEINET10463516  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt NR TITLOW HILL, WILLOW CR. QUAD., NR WILLOW CR. EVERGREEN CONIFER FOREST, SEEPAGE 1280 Comment
  SEINET10873297  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6978 Humboldt NEAR SNOW CAMP, IAQUA BUTTES QUAD. CLOSE TO THE TOWN OF WILLOW CR. EVERGREEN CONIFER FOREST, LAKE SIDE 1393 Comment
  BLMAR76  Cardamine californica Jennifer Anthony-Wheeler 1994-6-2 76 Humboldt IAQUA, gwng up logging rd in conif forest 853 Comment
  SD56729  Cardamine californica Darley F. Howe 1963-5-26 3554 Humboldt 3.7 miles on Ball Mill Road, east of Orick. 490 Comment
  UC1199192  Cardamine californica Joseph P. Tracy 1949-6-6 18305 Humboldt ne Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain, ne Hawkins Bar 1280 Comment
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  UC668056  Cardaria draba Joseph P. Tracy 1938-6-12 15895 Humboldt opposite mouth of Van Duzen River (Eel River, Alton to Fortuna); Eel River 15 Comment
  SD117463  Cardionema ramosissimum Robert F. Thorne 1974-7-29 45077 Humboldt Samoa dunes. Comment
  CAS-BOT-BC17793  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  UC1152063  Carex angustata Joseph P. Tracy 1950-7-6 18988 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  HSC76400  Carex aquatilis var. dives L. P. Janeway 1982-8-7 118 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  SEINET2044695 Image available Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie. 1052 Comment
  UC1103574  Carex arcta J. P. Tracy 1903-8-9 1931 Humboldt immediate vicinity of Eureka 0 Comment
  POM247170  Carex athrostachya Joseph P. Tracy 1934-7-18 13426 Humboldt Grouse Mountain. 1524 Comment
  SEINET200965  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Northern Coast Ranges Bald Mountain between High Prairie and Snow Camp. 1067 Comment
  SEINET200966  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges French Camp Ridge. 1067 Comment
  CAS-BOT-BC19611  Carex brainerdii Joseph Prince Tracy 1935-7-30 14350 Humboldt Salmon Summit. On ridge 2 miles southwest of top. 1767 Comment
  CAS-BOT-BC19613  Carex brainerdii Joseph Prince Tracy 1937-7-24 15525 Humboldt Trinity Summit. Head of Devil's Hole. 1767 Comment
  HSC7100  Carex buxbaumii B. D. Rogers 1965-10-2 1018 Humboldt Big Lagoon 0 Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  POM313080  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt Southern outskirts of Eureka Comment
  RSA296773  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch north of Dinsmore. Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  CAS-BOT-BC20076  Carex echinata Joseph Prince Tracy 1926-6-27 7666 Humboldt Northern Coast Ranges. Horse Mountain. 1463 Comment
  UC197209  Carex echinata subsp. phyllomanica Joseph P. Tracy 1913-7-13 4364 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  SEINET7708306 Image available Carex feta J. P. Tracy 1950-7-6 19010 Humboldt Albee Road; Buck Mountain, 3 mi S of Burr Valley Comment
  POM292659  Carex gynodynama Lyman Benson 1929-7-12 1795 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  CHSC48077  Carex harfordii L. P. Janeway 1983-5-15 297 Humboldt In riparian bend of Mad River on S side, near Fish Hatchery Rd and across river from Blue Lake. 24 Comment
  UC709392  Carex hassei Joseph P. Tracy 1941-5-11 16868 Humboldt Big Lagoon 152 Comment
  CHSC40137  Carex hendersonii Lawrence Janeway 1982-6-17 9 Humboldt Ca 300 m w of main Arcata Community Forest rd along the rd to the HSU water tank. 137 Comment
  CAS-BOT-BC21017  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at south fork of the Eel River. Comment
  UCD140376  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River. Comment
  CHSC90275  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8541 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  UC562428  Carex laeviculmis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC34959  Carex multicaulis Thomas W. Nelson 1975-5-24 1869 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1103091  Carex multicostata Joseph P. Tracy 1933-7-25 12847 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC562265  Carex neurophora Joseph P. Tracy 1935-7-23 14143 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  POM126515  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley. 762 Comment
  HSC76818  Carex obnupta L. P. Janeway 1982-6-12 3 Humboldt Dry Lagoon 3 Comment
  RSA91660  Carex obnupta F. W. Peirson 1941-7-28 13108 Humboldt Road to Patrick Point. Comment
  SEINET7569467 Image available Carex obnupta David Castaner 1984-5-28 8064 Humboldt Patrick State Park, Redwood Forest area. Comment
  HSC102163  Carex pachystachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1073 Humboldt Patterson Meadows 1555 Comment
  HSC48038  Carex pachystachya D. H. Norris 1972-6-26 23008 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  HSC98935  Carex pachystachya Cara Witte 2007-7-8 444 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET3827283  Carex pachystachya Joseph P. Tracy 1938-1 16083 Humboldt In shade. 30 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC119167  Carex pansa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula opposite Eureka. Comment
  HSC70466  Carex rossii J. P. Tracy 1904-5-1 2045 Humboldt Eureka 0 Comment
  JEPS79859  Carex rossii Joseph P. Tracy 1935-6-2 13921 Humboldt Big Lagoon 3 Comment
  RSA794382  Carex subbracteata P. F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles southeast of Route 299 at Berry Summit, 1 air km southwest of Horse Mountain. Outer North Coast Ranges. 1190 Comment
  SEINET7577147 Image available Carex subfusca Andrew L. Hipp 1999-5-31 447 Humboldt Fort Seward, Alder Point Road, ca 2 mi N of intersection w/ Ft. Seward Rd. 503 Comment
  RSA517340  Carex tumulicola Barbara Ertter, Thomas J. Delendick 1987-5-16 6926 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  UC1103117  Carex tumulicola Joseph P. Tracy 1919-5-31 5153 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1561802  Carex tumulicola Barbara Ertter with Thomas J. Delendick 1987-5-16 6926 Humboldt ca. 15 air mi e Arcata (on n side of road, Vista Point just w of Berry Summit on Hwy. 299) 914 Comment
  SEINET4110860  Carex unilateralis D. W. Taylor 2004-1 19135 Humboldt Clear Lake, Titlow Hill Road. 1493 Comment
  CAS-BOT-BC115536  Carex unilateralis Joseph Prince Tracy 1938-7-5 16007 Humboldt Carlotta. Wet place in open flat by old Strong's District School House, 5 mi E of town. 45 Comment
  NY11391  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  CHSC90278  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8607 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  SEINET11632747  Carex utriculata J. P. Tracy 1950-1 19264 Humboldt Box Camp, Trinity Summit 1524 Comment
  UC562329  Carex vesicaria Joseph P. Tracy 1934-7-18 13428 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SBBG57215  Carex viridula H. E. Parks -Sep-1935 5214 Humboldt center of Dry Lagoon, S of Orick Comment
  RSA12515  Castanopsis Carl B. Wolf 1934-7-3 5921 Humboldt 6 mi. from Martin's Ferry on Orick Rd. 305 Comment
  HSC93531  Castilleja affinis subsp. affinis Gordon Leppig 1998-6-1 868 Humboldt Horse Mtn., Buck Flat, Titlow Hill Rd. at Ammon Ridge Rd. 1402 Comment
  UC902251  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 A Humboldt Big Lagoon 152 Comment
  HSC36101  Castilleja ambigua subsp. humboldtiensis W. C. Vinyard 1974-5-22 Humboldt Beside Humboldt Bay at the boat access at Arcata Comment
  JEPS26223  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1909-9-19 3100 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 Comment
  RSA152367  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River. 3 Comment
  SJSU8462  Castilleja ambigua subsp. humboldtiensis H. T. Harvey 1977-7-6 609 Humboldt South Spit, Humboldt Bay Comment
  RSA167243  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1950-7-2 18974 Humboldt Near top of ridge, 1 mile south of Grizzly Camp. Comment
  HSC56028  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11570 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  UC582569  Castilleja attenuata Joseph P. Tracy 1932-5-1 9887 Humboldt vicinity Garberville 121 Comment
  HSC46970  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just E of the drag strip. Comment
  SBBG54572  Castilleja exserta subsp. latifolia F. W. Pennell, J. Tracy 1940-7-6 26085 Humboldt back of beach, Table Bluff, W of Loleta 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
  UC179945  Castilleja miniata Joseph P. Tracy 1914-9-6 4609 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  JEPS8622  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; Northern Coast Ranges 1432 Comment
  UC1196742  Castilleja pruinosa Joseph P. Tracy 1939-4-29 16230 Humboldt opposite mouth of Hors Linto Creek; Trinity River 152 Comment
  CAS-BOT-BC47997  Ceanothus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  CAS-BOT-BC49655  Ceanothus foliosus var. foliosus Dr. A. Kellogg; W. G. W. Harford 1868-1-1 s.n. Humboldt Red Mt. Route Comment
  HSC101661  Ceanothus incanus J. P. Smith, J. O. Sawyer 2011-4-23 13122 Humboldt Along road from Redway to Shelter Cove 208 Comment
  UC1193319  Ceanothus incanus R. H. Neuns 1950-7-13 130 Humboldt 3 miles south of Alder Point 548 Comment
  UC668165  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek; near Bosworth's 304 Comment
  HSC39520  Ceanothus integerrimus Thomas W. Nelson, James Nelson 1976-6-10 2663 Humboldt Ridge W of Senteney Rock 1555 Comment
  UC1198006  Ceanothus integerrimus Joseph P. Tracy 1937-6-26 15365 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC176965  Ceanothus integerrimus Joseph P. Tracy 1913-6-21 4249 Humboldt Dinsmore's Ranch Valley of Van Duzen River, Northern Coast Ranges (opposite Buck Mt.,) 762 Comment
  CDA36054  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  HSC36674  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 3 .11775 Humboldt Along county rd. 290 Comment
  UC1193287  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 167 Humboldt 2 mi se Honeydew; Quad. 28D1 182 Comment
  CAS-BOT-BC51206  Ceanothus parryi W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  UC18403  Ceanothus parryi Bolander Jun 1867 6572 Humboldt Comment
  CAS-BOT-BC53061  Ceanothus pumilus Mrs. H. C. Cantelow 1936-5-19 s.n. Humboldt 11 miles east of Crescent City Comment
  CAS-BOT-BC53063  Ceanothus pumilus Clarence R. Quick 1959-7-24 59 -34 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC52980  Ceanothus thyrsiflorus Doris K. Kildale 1928-5-19 5150 Humboldt Chalk Mountain Comment
  CAS-BOT-BC52990  Ceanothus thyrsiflorus Duncan Dunning 1921-10-2 705 Humboldt Trinidad 30 Comment
  HSC18330  Ceanothus thyrsiflorus H. E. Parks Mar 1934 4828 Humboldt Spruce Cove, Trinidad Comment
  HSC23116  Ceanothus thyrsiflorus Norman Dennis 1965-6-19 124 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC89425  Ceanothus thyrsiflorus P. A. Daly 1984-5-8 6 Humboldt Trinidad Head. 61 Comment
  UC1198011  Ceanothus thyrsiflorus Joseph P. Tracy 1933-6-7 12520 Humboldt Blue Slide Van Duzen River, Blue Slide (on Van Duzen River) 91 Comment
  UCD112726  Ceanothus thyrsiflorus J. E. Street 1950-5-28 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC52868  Ceanothus velutinus Carl Purdy 1917-4-16 s.n. Humboldt Ukiah Comment
  UC164836  Ceanothus velutinus Joseph P. Tracy 1911-7-9 3455 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  UC204750  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt along river from South Fork to Scotia, Holmes Flat Eel River; North Coast Ranges, , Holmes Flat 60 Comment
  CDA20058  Centaurea diffusa R. Spadoni, Green 2002-10-9 PDR P 070865 Humboldt Northwestern California; Wasteground near old log pond at Pacific Lumber Co, Scotia. 0 Comment
  UC1225826  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1198634  Centaurium muehlenbergii Joseph P. Tracy 1935-5-25 13870 Humboldt Fort Seward 106 Comment
  UC562468  Centunculus minimus Joseph P. Tracy 1927-7-17 8272 Humboldt North Coast Ranges, on Chaparral Mountain, Three Cabins Three Cabins; North Coast Ranges, Chaparral Mountain, Three Cabins 457 Comment
  HSC98133  Cephalanthera austiniae Cara Witte 2007-6-27 372 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  UC14952  Cephalanthera austiniae Chesnut and Drew 1888-1 Humboldt Comment
  HSC45053  Cerastium arvense R. Sutherland 1978-4-24 11 .24478 Humboldt Kinsey Ridge, gravel slide of road cut 323 Comment
  UCD97989  Cerastium arvense subsp. strictum W. L. Jepson 1902-6-19 1883 Humboldt Harris to Ft. Seward Ranch Ridge. 1066 Comment
  HSC59048  Cerastium glomeratum Thomas Wood 1979-4-4 94 Humboldt Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd. Comment
  HSC4107  Cerastium glomeratum David K. Smith 1968-11-20 81 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  CAS-BOT-BC400144  Ceratophyllum demersum Henry M. Pollard 1946-8-16 s.n. Humboldt Pond near Harley place, Orleans region Comment
  CAS-BOT-BC135532  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1927-4-10 7897 Humboldt Trinity River Valley, near the South Fork 182 Comment
  HSC46007  Chamaecyparis lawsoniana J. P. Smith 1971-10-9 5021 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  SBBG367  Chamaecyparis lawsoniana J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC166038  Chamerion angustifolium subsp. circumvagum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  HSC55266  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12631 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC314615  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1926-7-25 7755 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC97579  Cheilanthes gracillima Cara Witte 2007-5-23 97 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  UC1481862  Cheilanthes gracillima Milo S. Baker 1926-7-13 10 a-26 Humboldt 1/2 mi along Forest Rd from Hwy S Fork Mt Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  CAS-BOT-BC451385  Chimaphila menziesii Harley P. Chandler 1901-6-1 1398 Humboldt North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC55230  Chimaphila menziesii G. L. Clifton, Griswold 1979-8-2 12431 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC71674  Chimaphila menziesii M. A. Baker 1980-6-26 2390 Humboldt Near Sims Creek 610 Comment
  HSC45430  Chimaphila menziesii Thomas W. Nelson, Jane Nelson Jul 1977 3565 Humboldt Along N side of ridge between Bear & Blanket Creeks 1494 Comment
  UC21651  Chimaphila umbellata J. Burtt Davy 1899-6-18 5620 Humboldt Bald Mt. near Korbel; North Coast Ranges, Bald Mt. Comment
  CAS-BOT-BC497672  Chlorogalum pomeridianum L. R. Abrams 1918-6-16 7191 Humboldt Willow Creek Comment
  UC404019  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 11 Humboldt Hupa Comment
  UC1197669  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1912-7-4 3726 Humboldt hillside near mouth of Yager Creek (near Hydesville); Northern Coast Region 60 Comment
  HSC98791  Chrysolepis chrysophylla var. minor Cara Witte 2007-9-3 639 Humboldt Horse Mountain Botanical Area. Road 6N38. 1 mile east of Horse Mountain Mine. 1259 Comment
  UC1222286  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1950-7-31 19239 Humboldt Grouse Mountain; top of mountain 1524 Comment
  SD58270  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  UC314585  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET8726116 Image available Circaea alpina Unknown 1936-1 s.n. Humboldt Damp wooded bank of Yager creek at 2400 feet altitude, Humboldt County, California. 732 Comment
  HSC56206  Circaea alpina subsp. pacifica G. L. Clifton, Griswold 1979-8-2 12198 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC284407  Cirsium arvense L. R. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzley Creek on Van Duzen River Comment
  UC582529  Cirsium arvense Joseph P. Tracy 1933-8-13 12962 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC284404  Cirsium arvense L. R. Abrams 1927-8-31 12059 Humboldt Arcata Comment
  CDA1217  Cirsium douglasii var. douglasii T. C. Fuller 1962-8-6 9352 Humboldt Hwy 299, 3.4 miles east of Berry Summit. Comment
  HSC94050  Cirsium douglasii var. douglasii B. Villegas 1998-8-5 Humboldt Nr. Berry Summit on Titlow Hill Rd., 4.8 mi. S of Hwy. 299 Comment
  UC1238036  Cirsium douglasii var. douglasii H. E. and S. T. Parks 1947-6-1 24441 Humboldt South Fork Camp Willow Creek Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC204833  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  CAS-BOT-BC288714  Cirsium remotifolium Peter H. Raven; R. Snow 1958-7-21 13654 Humboldt 7.2 miles NW of Capetown on road to Ferndale Comment
  HSC98565  Cirsium remotifolium var. odontolepis Cara Witte 2008-7-16 910 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC91789  Cirsium remotifolium var. odontolepis W. W. Price 1890-7-3 Humboldt Comment
  HSC68157  Cirsium vulgare J. P. Smith 1971-10-6 4972 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1052188  Cirsium vulgare J. L. Meyer 1954-10-11 30 Humboldt 3 m n Blocksburg; Quad. No. 29A3 457 Comment
  HSC75274  Cirsium vulgare J. O. Sawyer, D. A. Thornburgh 1980-9-9 4081 Humboldt Mill Creek Lake and surrounding meadows Comment
  CAS-BOT-BC160963  Clarkia amoena subsp. amoena Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  RSA24287  Clarkia amoena subsp. huntiana Carl B. Wolf 1940-11-10 9783 Humboldt 1 mile inland from Devils Gate (South of Cape Mendocino) on road to Petrolia 152 Comment
  CAS-BOT-BC164179  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  UC144076  Clarkia davyi Joseph P. Tracy 1907-7-20 2592 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  LA206342  Clarkia gracilis H. Lewis; M. Lewis 1947-6-13 423 Humboldt Highway 36 at S Fork of Van Duzen River (Bridge 4-119) Comment
  UC1071991  Clarkia gracilis H. and M. Lewis 1947-6-13 423 Humboldt Highway 36, Bridge 4-119 South Fork of Van Duzen River Comment
  POM214926  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1932-6-26 10264 Humboldt North Coast Ranges: Valley of South Yager Creek 762 Comment
  CAS-BOT-BC172504  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-8 2128 Humboldt Bug Creek 792 Comment
  UC180232  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-7-5 4559 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  POM72745  Clarkia purpurea subsp. viminea P. A. Munz 1925-6-20 9887 Humboldt Garberville Comment
  HSC53894  Clarkia rhomboidea Griswold, Butler 1979-7-11 6397 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC144068  Clarkia rhomboidea Joseph P. Tracy July, 1908 2763 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  UC162625  Clarkia rhomboidea Joseph P. Tracy 1911-7-12 3520 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 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
  HSC44423  Claytonia saxosa Brad Klipfel 1975-5-30 652 Humboldt Horse Mtn. Comment
  CHSC1384  Claytonia sibirica M. Underhill 1952-7-12 Humboldt Wet bank. 121 Comment
  HSC70536  Claytonia sibirica Gail Newton 1980-7-20 1633 Humboldt Near Bell Swamps 1426 Comment
  HSC89441  Claytonia sibirica P. A. Daly 1985-5-3 36 Humboldt Trinidad Head 61 Comment
  SD88361  Claytonia sibirica D. F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville 91 Comment
  CAS-BOT-BC92598  Clematis ligusticifolia Joseph P. Tracy 1937-8-3 15608 Humboldt Along Mad River, near Blue Lake. 15 Comment
  CAS-BOT-BC499341  Clintonia andrewsiana Doris K. Kildale 1926-7-22 2413 Humboldt Metropolitan, woods near Canyon Peak Comment
  HSC15448  Clintonia andrewsiana M. L. Stuart 1965-4-28 34 Humboldt Up Fern Lake Rd. about 400 yds. Comment
  HSC45218  Collinsia linearis M. Alcasas 1978-6-3 124 Humboldt Titlow Hill Rd., .5 mi. from Hwy. 299 1037 Comment
  JEPS6178  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt Grouse Mtn; North Coast Ranges 1524 Comment
  RSA21322  Collinsia linearis Carl B. Wolf 1937-8-13 9216 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1238971  Collinsia linearis Freed W. Hoffman 1946-5-24 967 Humboldt Blue Lake to Willow Creek (North Coast Ranges, Trinity Forest); North Coast Ranges, Trinity Forest Comment
  HSC32278  Collinsia parviflora D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5625 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC39622  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2726 Humboldt Along old trail above Alder Springs 1585 Comment
  HSC97484  Collinsia parviflora Cara Witte 2007-5-21 57 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  HSC22842  Collinsia rattanii D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5063 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa 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
  UC673102  Collinsia rattanii Joseph P. Tracy 1940-5-17 16552 Humboldt Larrabee Valley 731 Comment
  HSC100661  Collinsia sparsiflora Carl C. Marshall May 1887 497 Humboldt Kneeland Prairie. Comment
  JEPS25071  Collinsia sparsiflora var. arvensis Joseph P. Tracy 1904-4-3 2007 Humboldt immed. vicinity Eureka 0 Comment
  JEPS26358  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; North Coast Ranges; Bear River Ridge 609 Comment
  UC908725  Collomia grandiflora Joseph P. Tracy 1933-7-21 12818 Humboldt on ridge s Yager Creek (10 mi e of Carlotta, edge of redwood belt); Redwood House 762 Comment
  UC1197847  Collomia heterophylla Joseph P. Tracy 1908-6 2702 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC44406  Collomia heterophylla R. York 1978-5-6 158 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  SEINET6969874  Collomia heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CHSC98376  Collomia tracyi Dean Wm. 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
  HSC71821  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  UC673121  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  UC978533  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt in slide rock Northern Coast Ranges, Horse Mountain 1066 Comment
  UC1197344  Conioselinum pacificum Joseph P. Tracy 1913-8-31 4388 Humboldt near Indianola (s end of Humboldt Bay); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC179929  Conium maculatum Joseph P. Tracy 1914-6-7 4496 Humboldt Region about Humboldt Bay (South Fork Elk River, at Falk's Mill); Northern Coast Region 0 Comment
  HSC91919  Conyza canadensis E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  HSC99341  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-12 526 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  HSC27560  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-6-30 88 Humboldt Big Lagoon County Park, 8 mi. N of Trinidad Comment
  HSC30139  Corallorhiza striata A. Montalvo, J. D. Ackerman 1974-4-14 171 Humboldt 100 m from intersection of Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  HSC38447  Cordylanthus maritimus subsp. palustris J. P. Smith 1976-7-3 8936 Humboldt Manila, Samoa Peninsula Comment
  HSC78076  Cordylanthus maritimus subsp. palustris Craig Martz 1984-7-18 204 Humboldt Samoa Peninsula, about 100 feet E of paved parking area at the junction of Hwy. 255 and Vance Ave, upper edge of marsh. 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
  BLMAR678  Corethrogyne filaginifolia Jennifer Wheeler 2013-7-12 678 Humboldt King range, Johnny Jack Ridge 677 Comment
  CAS-BOT-BC101151  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt along the highway at the mouth of Little River near Trinidad Comment
  UC1199415  Corethrogyne filaginifolia Joseph P. Tracy 1909-7-18 3016 Humboldt Humboldt Bay Comment
  UC1223037  Corethrogyne filaginifolia J. P. Tracy 1950-6-18 18764 Humboldt 1 mi w of town Petrolia Comment
  CAS-BOT-BC212013  Cornus nuttallii Doris K. Kildale 1927-5-1 3118 Humboldt Blocksburg Comment
  HSC65074  Cornus nuttallii J. P. Smith, Steve Selva 1970-6-14 3853 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  RSA273406  Cornus nuttallii Thomas W. Nelson, Jane Nelson, A. Nelson 1976-6-15 2733 Humboldt Off 2S08 just west of Goat Hill. 1463 Comment
  UC1196910  Cornus nuttallii Joseph P. Tracy 1922-4-30 6031 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. Comment
  UC726593  Cornus sericea subsp. sericea A. A. Heller 1923-7-10 13793 Humboldt Eel R. between Scotia and Pepperwood; Eel R. Comment
  CAS-BOT-BC210537  Cornus sessilis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  JEPS50174  Cornus sessilis Joseph P. Tracy 1922-4-30 6040 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  UC1011081  Corylus californica Emanuel Fritz 1941-10-4 8610 Humboldt Van Duzen River 91 Comment
  UC146217  Corylus californica Joseph P. Tracy 1906-6-24 2497 Humboldt Humboldt Hill, S side North Coast Region, region about Humboldt Bay 0 Comment
  UC176170  Corylus californica Joseph P. Tracy 1912-3-3 3560 Humboldt on West place, between Eureka and Fields Landing Northern Coast Region 0 Comment
  UCR32167  Corylus cornuta var. californica David J. Keil 1983-7-2 17312 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CHSC19513  Cotula coronopifolia J. F. Knezevich 1968-5-14 431 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. Comment
  UC166068  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt immediate vicinity of Eureka 0 Comment
  HSC49801  Cotula coronopifolia R. York 1979-4-16 236 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  HSC87175  Crassula aquatica K. Grenier 1988-11-16 291 Humboldt North Spit of Humboldt Bay Comment
  JEPS25619  Crepis capillaris Rimo Bacigalupi 1959-7-7 7252 Humboldt immediately behind bluff headland of Cape Mendocino (and just n of road summit at this point, along roadside ditch) 30 Comment
  CAS-BOT-BC290727  Crepis occidentalis subsp. conjuncta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC31207  Crepis pleurocarpa D. E. Anderson 1972-6-20 5742 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CAS-BOT-BC290908  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto [Horse Linto] Creek 152 Comment
  UCD130992  Crocidium multicaule Roman Gankin; W. R. Hildreth 1966-3-15 700 Humboldt Klamath River canyon, State Highway 96, 4.6 miles north of Hoopa. Comment
  UC1103234  Crypsis vaginiflora Joseph P. Tracy 1931-9-7 9668 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222265  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18470 Humboldt 2-6 mi s Grouse Mt. (e of headwaters of Redwood Creek, power plant southward); Kinsey Ridge 1280 Comment
  UC1134204  Cupressus lawsoniana C. R. Clar 1930-7-14 98 Humboldt Supply Creek Hoopa Quad., Hoopa Indian Reservation, Supply Creek 609 Comment
  RSA758117  Cupressus macrocarpa Doug Goldman 2004-12-20 2982 Humboldt Open area with sandy loam soil, just below the edge of a NW-facing bluff overlooking the beach and a few hundred feet to N. of the table Bluff lighthouse facility. 43 Comment
  RSA639037  Cuscuta californica R. F. Thorne, P. C. Everett 1965-8-7 35226 Humboldt Samoa Peninsula. 3 Comment
  UC562672  Cuscuta campestris Joseph P. Tracy 1933-8-25 12997 Humboldt near mouth of Eel River; Centerville Beach 6 Comment
  HSC35596  Cuscuta occidentalis Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2007 Humboldt French Camp, Bald Hills Comment
  UC198629  Cuscuta occidentalis Joseph P. Tracy 1916-9-6 4760 Humboldt headwaters of Canoe Creek Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 Comment
  RSA249518  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-7 35206 Humboldt Samoa Peninsula. 0 Comment
  HSC3638  Cynoglossum grande D. E. Anderson 1962-3-17 1931 Humboldt About 3 mi. W of Bridgeville, along S.R. 36 Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  HSC3645  Cynoglossum grande Gerald T. Rood 1962-5-11 8 Humboldt Kneeland Rd., ca. 2.5 mi. W of Barry Rd. Comment
  HSC37238  Cynosurus echinatus Lon Hall 1975-6-19 406 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC37257  Cynosurus echinatus Lon Hall 1975-6-19 389 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC9519  Cynosurus echinatus R. Spellenberg 1964-6-15 418 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  RSA137066  Cynosurus echinatus I. L. Wiggins 1957-6-21 14142 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  UCD60184  Cynosurus echinatus J. Street 1950-5-28 s. n. Humboldt Alder Point. Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC14956  Cypripedium montanum Mrs. M. H. Manning may, 1901 16 Humboldt near Hupa Comment
  HSC98541  Cystopteris fragilis Cara Witte 2008-6-9 704 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  JEPS35194  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt S. Fork Eel River Comment
  HSC14675  Cytisus scoparius William J. Ferlatte 1963-4-21 19 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  HSC71613  Cytisus scoparius J. P. Smith 1973-5-26 6833 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC74563  Dactylis glomerata M. A. Baker 1980-5-17 1244 Humboldt Near Le Perron Peak 1066 Comment
  SEINET4565919  Dactylis glomerata J. B. Davy 1899-6-16 5557 Humboldt Scotia Comment
  CAS-BOT-BC189739  Danthonia californica Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward. 106 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  HSC97571  Danthonia californica Cara Witte 2007-6-7 230 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  UC526708  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  UC526687  Danthonia californica var. americana Joseph P. Tracy 1932-7-10 10392 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC420357  Darmera peltata Doris K. Kildale 1928-6-24 5247 Humboldt Redwood Creek at Berry's Comment
  SBBG5180  Daucus pusillus H. and M. Dearing 1939-5-25 3442 Humboldt sand dunes near Samoa Comment
  BLMAR630  Delphinium decorum Jennifer Wheeler 2011-6-15 630 Humboldt Lacks Creek, Pine Ridge Road Comment
  JEPS23882  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-30 837 Humboldt Near top of Horse Mountain (about 25 miles due east of Eureka) Comment
  UC502927  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt moist places at head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC10316  Delphinium hesperium Doris K. Kildale 1927-7-1 3620 Humboldt Alton Hill 30 Comment
  HSC100614  Delphinium hesperium Carl C. Marshall Jun 1886 80 Humboldt Redwood region. Comment
  SEINET6907329  Delphinium hesperium W. P. Vestal, A. G. Vestal 1937-6-20 s.n. Humboldt About 4 miles north of Petrolia. Comment
  UC1225748  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC160927  Delphinium hesperium subsp. hesperium Harley P. Chandler May 1901 1252 Humboldt Redwood Belt North Coast Ranges 152 Comment
  HSC37516  Delphinium menziesii J. D. Ackerman 1974-5-25 265 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad Comment
  HSC95728  Delphinium nudicaule Steven Lee 2004-4-26 30 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC86902  Delphinium patens Terry Hines, Ellen Purcell, N. Williams 1988-5-1 62 Humboldt Titlow Hill Rd., 0.75 mi. from Hwy. 299 625 Comment
  RSA114995  Delphinium trolliifolium E. K. Balls, Lee W. Lenz 1955-5-15 20736 Humboldt 9.9 miles SW from Fernbridge, along Old Coast road to Capetown. 503 Comment
  UC1222574  Delphinium trolliifolium Joseph P. Tracy 1950-6-15 18816 Humboldt ne side of ridge Mail Ridge, Huestis Rock (7 mi n of Harris) 822 Comment
  UC160942  Delphinium trolliifolium Joseph P. Tracy Jul 27 1908-Jul 30 1908 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UCR32113  Delphinium trolliifolium David J. Keil 1983-7-2 17344 Humboldt 21 miles south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1300 Comment
  HSC35350  Delphinium trolliifolium A. M. Montalvo, J. D. Ackerman 1975-6-22 489 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  UC1080304  Delphinium trolliifolium E. K. Balls 1957-5-25 22603 Humboldt State Hwy 36 4.5 mi sw Dinsmores 822 Comment
  JEPS2559 Image available Dentaria californica Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River; Van Duzen River at Blue Slide, E of Hydesville, Humboldt Co. 91 Comment
  UC1103212  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1912-7-21 3789 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1131481  Deschampsia cespitosa subsp. holciformis H. S. Yates 1936-6-16 5677 Humboldt 1 mi. n.e. Samoa; Eureka Quad. Comment
  RSA22686  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge Comment
  SEINET10900460  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 Tracy 13969 Humboldt Locally abundant in moist places. French Camp Ridge. 1067 Comment
  CAS-BOT-BC201769  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC26779  Deschampsia elongata Thomas W. Nelson 1971-5-31 463 Humboldt 915 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS75412  Deschampsia elongata W. L. Jepson 1932-7-24 16381 Humboldt 91 Comment
  RSA256709  Deschampsia elongata D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-17 5712 Humboldt Mc Keown Ranch North of Dinsmore Comment
  UCD63577  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3621 Humboldt 4 miles north of Bridgeville. Comment
  HSC58010  Descurainia incana G. L. Clifton 1979-7-31 11806 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC12427  Dicentra formosa Gary J. Stebbins 1970-4-19 72 Humboldt Along road to Fieldbrook 2.8 mi. N of Hwy. 299 Comment
  HSC8363  Dicentra formosa R. J. Vernimen 1963-3-25 17 Humboldt Clam Beach Lagoons Comment
  CAS-BOT-BC402404  Dicentra formosa subsp. formosa Doris Kildale Gillespie 1931-6-7 10657 Humboldt South Fork Mt., Blake Lookout Comment
  UC35009  Dicentra uniflora J. Burtt Davy 1899-6-23 5816 Humboldt Trinity Summit summit; North Coast Ranges 2133 Comment
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  JEPS64179  Dichelostemma capitatum Lincoln Constance 1934-6-19 914 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  SEINET6879154  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC70662  Dichelostemma ida-maia Gail Newton 1980-7-14 1545 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC501026  Dichelostemma ida-maia H. D. Ripley; R. C. Barneby 1945-6-16 6810 Humboldt S. of Weott 91 Comment
  HSC3034  Dichelostemma ida-maia D. G. Hauger 1967-7-15 21 Humboldt 1.0 mi. from Ft. Baker 549 Comment
  SEINET3885616  Dichelostemma ida-maia John Sawyer 1970-6-24 2216 Humboldt Hoopa quad. Serpentine ridge on Big Hill Road east of Hoopa.; 0 1189 Comment
  UC1222686  Dichelostemma ida-maia Joseph P. Tracy 1950-7-2 18973 Humboldt 1 mi s Grizzly Camp Comment
  UC1198174  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16240 Humboldt mouth of Slate Creek Klamath River 121 Comment
  POM277211  Disporum hookeri var. hookeri Lyman Benson 1929-7-16 1840 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  POM188116  Disporum smithii Marcus E. Jones 1931-7-14 29227 Humboldt South of Eureka Comment
  POM278274  Disporum smithii Lyman Benson 1928-7-11 163 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  RSA46820  Disporum smithii Doris K. Kildale 1926-3-26 1636 Humboldt Old Kneeland road. Comment
  UCSC000139  Disporum smithii R. Stahelin 1933-5-17 s.n. Humboldt Arcata City Park - Eureka Comment
  HSC26357  Distichlis spicata T. O. Osborne 1970-6-18 55 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC90915  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  HSC9632  Distichlis spicata J. M. Johnson 1962-7-29 Humboldt On dike beside Mad River slough, W.M. Lanphere Farm, Samoa peninsula. Comment
  JEPS14696  Dodecatheon alpinum W. L. Jepson Jul 16 1902-Jul 23 1902 2105 Humboldt Trinity Summit 2133 Comment
  HSC34498  Dodecatheon hendersonii J. D. Ackerman 1975-5-3 439 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  UC1199179  Draba verna Joseph P. Tracy 1932-5-1 9841 Humboldt along Van Duzen River (Alton); North Coast Ranges, along Van Duzen River 30 Comment
  HSC40018  Drymocallis glandulosa var. glandulosa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2922 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  CAS-BOT-BC159616  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1926-4-30 1945 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  HSC89449  Dryopteris arguta P. A. Daly 1984-5-8 16 Humboldt Trinidad Head 61 Comment
  UC42173  Dryopteris arguta C. C. Marshall 46 Humboldt Hoopa Valley Comment
  SEINET6424490 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  POM281673  Dryopteris expansa Lyman Benson 1929-7-18 1847 Humboldt Weott Rangr station, Redwoods flat Comment
  UCSB30621  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  UC1103265  Echinochloa crus-galli Joseph P. Tracy 1932-10-2 10860 Humboldt Redwood Creek near Bair's Redwood Creek; Northern Coast Range, Redwood Creek 213 Comment
  UCD60951  Echinochloa crus-pavonis Collector unknown 1926-7-1 Humboldt Annie Wilson Ranch, Alderpoint. Comment
  JEPS19332  Eleocharis acicularis Joseph P. Tracy 1937-8-12 15626 Humboldt Bald Mountain, at Lake Prairie 1066 Comment
  HSC102060  Eleocharis bella M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1163 Humboldt Patterson Meadows 1555 Comment
  UC668025  Eleocharis macrostachya Joseph P. Tracy 1927-7-17 8284 Humboldt Three Cabins North Coast Ranges (grassy slopes on lower western foothills of Chaparral Mountain) 457 Comment
  CAS-BOT-BC113112  Eleocharis obtusa Henry M. Pollard 1946-8-16 s.n. Humboldt Along river near Orleans Comment
  UCR63392  Eleocharis pauciflora H. E. Parks 1934-1 5275 Humboldt North Coast, Spruce Cove, Trinidad Comment
  HSC102216  Eleocharis suksdorfiana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1132 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC666916  Eleocharis suksdorfiana Joseph P. Tracy 1932-7-14 10559 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC227346  Elymus elymoides Joseph P. Tracy 1935-7-23 14134 Humboldt Trinity Summit. Open places at Corral Prairie 1584 Comment
  UCD61426  Elymus elymoides A. H. Murphy 1951-6-25 75 Humboldt About 1 mile west of Snow Camp Mtn. ca. 8 miles ene of Kneeland. Comment
  HSC58631  Elymus glaucus Overton, Butler 1979-7-31 11485 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  RSA183623  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  SBBG53088  Elymus glaucus R. N. Philbrick, J. R. Haller 1976-6-25 8 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  POM295816  Elymus glaucus subsp. virescens Lyman Benson 1929-7-19 1856 Humboldt Dyerville to Matole River. Comment
  SJSU10755  Elymus mollis subsp. mollis H. T. Harvey 1977-7-5 595 Humboldt Elk River Spit, near Eureka, Humboldt Bay Comment
  UC573853  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt near Burr Valley; South Fork Pk. Quadrangle Comment
  SEINET200978  Elymus virescens Joseph P. Tracy 1938-6-17 15959 Humboldt Cape Mendocino. South of point of Cape. 3 Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  HSC59502  Empetrum nigrum M. A. Erickson 1979-5-29 307 Humboldt Megwill Point on Elkhead, N of College Cove Comment
  SBBG52991  Epilobium J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  UC1198483  Epilobium brachycarpum Joseph P. Tracy 1937-7-19 15454 Humboldt lower foothills of Buck Mountain Northern Coast Ranges (nw slope) 762 Comment
  UC198621  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4855 Humboldt Janes Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  HSC16551  Epilobium canum subsp. latifolium D. E. Anderson 1963-9-21 2836 Humboldt 0.5 mi. E of Willow Creek Comment
  SBBG60143  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River Comment
  CDA38081  Epilobium ciliatum T. C. Fuller 1958-6-17 17 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC49649  Epilobium ciliatum subsp. ciliatum J. P. Smith 1971-10-9 5031 Humboldt Mad River above the Fish Hatchery. Comment
  UC668282  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1937-8-12 15649 Humboldt in and around meadow Snow Camp 1402 Comment
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  CAS-BOT-BC165948  Epilobium septentrionale J. Clausen 1932-9-18 684 Humboldt 2 miles southeast of Petrolia at the bridge across Matolle River Comment
  HSC16559  Epilobium septentrionale C. B. Wolf 1927-8-30 1234 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  HSC16604  Epipactis gigantea D. E. Anderson 1967-7-10 4368 Humboldt Mad river canyon, 3 mi. S of Blue Lake Comment
  HSC98068  Equisetum arvense Cara Witte 2007-7-11 505 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC99486  Equisetum arvense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 145 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC100382  Equisetum arvense Carl C. Marshall May 1886 199 Humboldt Fields. Comment
  CAS-BOT-BC57161  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS60127  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River near Grizzly Creek Grizzly Creek; Van Duzen River 91 Comment
  CAS-BOT-BC57163  Equisetum hyemale subsp. affine Duart V. Brown 1947-3-24 3 Humboldt 3 miles south of Willow Creek, Trinity River Comment
  HSC36459  Equisetum hyemale subsp. affine John Rehling 1976-2-20 112 Humboldt Growing along the banks of the Van Dusen just W of Bridgeville Comment
  HSC22867  Equisetum laevigatum D. E. Anderson 1965-6-10 3792 Humboldt Along NW Pacific railroad tracks in Eureka, in harbor area and adjacent sites Comment
  SEINET5525683 Image available Equisetum telmateia Unknown 1983-6-16 Humboldt Patricks Pt State Park Comment
  SD90175  Equisetum telmateia subsp. braunii Benjamin C. Stone 1952-6-24 139 Humboldt 15 miles south of Klamath on Hwy. 101 36 Comment
  HSC95578  Equisetum telmateia subsp. braunii Andrea Pickart 2002-3-31 23 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC526900  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC212870  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 Humboldt mouth of Bluff Creek (Klamath R.); Northern Coast Ranges, Klamath R. 152 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
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  HSC27395  Eremocarpus setiger Thomas W. Nelson 1970-9-3 220 Humboldt Mad River. Comment
  POM187846  Erigeron foliosus var. mendocinus Marcus E. Jones 1931-7-16 29149 Humboldt Junction, East of Arcata. Comment
  HSC31557  Erigeron glaucus Glenn McGourty 1974-4-27 32 Humboldt Along side of Mattole River Comment
  RSA636111  Erigeron glaucus R. F. Thorne 1974-7-29 45079 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  HSC48815  Erigeron inornatus var. inornatus Brad Klipfel 1973-7-31 229 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC97812  Erigeron maniopotamicus Cara Witte 2007-6-22 339 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  CAS-BOT-BC214585  Erigeron philadelphicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  UC34302  Erigeron philadelphicus var. philadelphicus W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  HSC55020  Eriogonum compositum Overton, Butler 1979-7-31 11429 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC73670  Eriogonum compositum M. A. Baker 1980-7-15 2953 Humboldt Near Whiting Ridge. 1341 Comment
  HSC39955  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt 3 mi. W of Arcata Comment
  UC1225802  Eriogonum latifolium Joseph P. Tracy 1947-7-3 17761 Humboldt Trinidad 3 Comment
  UCD100327  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC259153  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samoa, near Arcata Comment
  RSA286308  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes. Comment
  HSC66867  Eriogonum lobbii M. A. Baker 1980-7-24 3202 Humboldt Near Orleans Mtn. 1625 Comment
  CAS-BOT-BC259541  Eriogonum luteolum var. luteolum A. A. Heller 1924-7-20 13861 Humboldt Along the Eel River at Phillipsville Comment
  HSC49980  Eriogonum nudum var. nudum M. A. Baker 1979-6-7 780 Humboldt N bank of road to Snow Mtn. 610 Comment
  CAS-BOT-BC261728  Eriogonum nudum var. oblongifolium Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek - Petrolia Road, 11 mi. W. of Redwood Highway 304 Comment
  OBI10943  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  HSC55136  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-1 12001 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55278  Eriogonum umbellatum var. stellatum Overton, Butler 1979-8-2 12689 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC97922  Eriophyllum lanatum var. achilleoides Cara Witte 2007-6-19 299 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC1223131  Eriophyllum lanatum var. achilleoides Joseph P. Tracy with A. H. Murphy 1951-6-26 19579 Humboldt vicinity of Twin Lakes (Snow Camp and Twin Lakes trip) Comment
  HSC5599  Eriophyllum staechadifolium D. E. Anderson 1961-8-25 1753 Humboldt 1.5 mi. S of Trinidad Comment
  JEPS61366  Erodium botrys Lincoln Constance 1934-5-27 701 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region Comment
  UC1198963  Erodium botrys Joseph P. Tracy 1913-6-27 4353 Humboldt McClellan Mt., on the Sweasey place Northern Coast Ranges 609 Comment
  HSC8496  Erodium cicutarium D. B. Bader 1963-3-1 30 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC8501  Erodium cicutarium Jack Rockwell 1962-4-29 66 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  HSC19420  Erysimum capitatum var. capitatum J. O. Sawyer 1968-9-11 731 Humboldt 1768 Comment
  HSC74234  Erysimum capitatum var. capitatum M. A. Baker 1980-7-11 2789 Humboldt Near Red Mtn. 1341 Comment
  JEPS53581  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt summit of peak South Fork Eel River, Bull Creek Region, Grasshopper Peak (down Canoe Cr. rd to Redwood Hwy and thence n to Dyerville) Comment
  CAS-BOT-BC54920  Erysimum menziesii Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  HSC48866  Erysimum perenne Brad Klipfel 1973-6-10 61 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET13732744 Image available Erythranthe primuloides Joseph P. Tracy 1932-1 10534 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  HSC100889  Erythronium Carl C. Marshall Apr 1887 357 Humboldt Near Lupton's Redwood. Comment
  HSC103293  Erythronium californicum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3005 Humboldt Six Rivers National Forest; ~ 4.6 mi. south of Hwy. 299 along Titlow Hill Rd., southeast of dirt intersection to Horse Mtn.; ~ 0.6 mi. south of Horse Mtn. Radio Tower. 1438 Comment
  HSC36498  Erythronium californicum Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1893 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  UC666965  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 Comment
  UCD139647  Erythronium oregonum Suzanne E. May 1967-4-15 24 Humboldt on Kneeland Road, 7 miles east of Bridgeville. 213 Comment
  HSC16748  Eschscholzia californica R. T. Forester 1963-4-23 20 Humboldt 1 mi. N of Fairhaven on Samoa Rd. Comment
  HSC73143  Eschscholzia californica M. A. Baker 1980-5-18 1331 Humboldt Near Black Mtn. 792 Comment
  UC184948  Eschscholzia californica Joseph P. Tracy 1912-7-21 3765 Humboldt Alton Northern Coast Region 30 Comment
  SEINET12102668  Eschscholzia californica J. P. Tracy 1950-1 18750 Humboldt Cape Mendocino. Sandy places at "Devil's Gate." S of point of the Cape 30 Comment
  RSA168920  Eschscholzia californica subsp. californica Joseph P. Tracy 1950-6-8 18750 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. At 'Devil's Gate'. 3 Comment
  RSA167199  Eucephalus glabratus Joseph P. Tracy 1941-8-24 17043 Humboldt South Fork Mountain, near McKay Camp Comment
  HSC58818  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12103 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA0024550  Eucephalus ledophyllus var. covillei Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit. 1890 Comment
  POM182421  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC1223115  Euchiton gymnocephalus Joseph P. Tracy 1946-5-30 17548 Humboldt near old Strong's District School House (burned down); Riverside Park Comment
  UC552228  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges 274 Comment
  CAS-BOT-BC206923  Euonymus occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt Eureka, 3 miles SE of business district 91 Comment
  HSC102563  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1550 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS73678  Euphorbia helioscopia Dr. Lamphere 1939-3-25 Humboldt near mouth of Mad River; near mouth of Mad River 9 Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  HSC69641  Euphorbia peplus R. Kalal 1980-6-8 18 Humboldt Arcata, at intersection of Hill St. and Spring St. in the dry waste area of a yard. 43 Comment
  HSC31736  Euphorbia peplus Donald Spalinger 1974-4-20 16 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  JEPS31927  Eurybia radulina W. L. Jepson 1936-8-13 17895 Humboldt n of, Tuttle Ranch Garberville Comment
  UCD98888  Fallopia convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt location unknown. 30 Comment
  HSC32230  Festuca idahoensis J. O. Sawyer 1970-6-24 2231 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC278812  Festuca occidentalis Joseph Burtt Davy; Walter C. Blasdale 1899-5-1 5427 Humboldt Near Hubbard Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  CAS-BOT-BC278959  Festuca rubra Richard W. Pohl 1963-6-2 9452 A Humboldt Sea beach, Trinidad Beach State Park Comment
  UC589847  Festuca rubra H. S. Yates 1936-6-16 5667 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UCD66356  Festuca rubra subsp. pruinosa H. S. Yates 1936-6-16 5667 Humboldt 1 mile S.W. of Samoa. 6 Comment
  UC277198  Festuca subulata Joseph P. Tracy 1921-6-4 5812 Humboldt Alton Northern Coast Region 30 Comment
  SEINET200688 Image available Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC18608  Fragaria vesca A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  HSC18636  Fragaria vesca S. S. Stutz 1963-3-24 14 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC102047  Fragaria virginiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 950 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC27127  Frangula californica J. P. Smith, J. O. Sawyer 1973-2-10 5841 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  UCD112747  Frangula californica Carl B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove. Comment
  SBBG4630  Frangula purshiana subsp. purshiana M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  CAS-BOT-BC217696  Fraxinus latifolia Doris K. Kildale 1925-6-21 735 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  RSA46910  Fraxinus latifolia Doris K. Kildale 1926-7-5 2325 Humboldt Smith River near Adam s Station Comment
Read comments
Jan 24 2013
  UC162719  Fraxinus latifolia Joseph P. Tracy 1911-7-7 3377 Humboldt 3 mi nw junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC15543  Fritillaria affinis A. H. Teshima 1963-5-8 34 Humboldt Moonstone Beach area Comment
  UC1197627  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15918 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC71743  Galium ambiguum M. A. Baker 1980-6-26 2427 Humboldt Near Sims Creek 610 Comment
  UC176063  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3938 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC37854  Galium aparine Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  HSC40954  Galium aparine Linda M. Barker 1976-6-14 1601 Humboldt 3 mi. W of Arcata Comment
  HSC77962  Galium aparine L. P. Janeway, Paul Wilson 1984-5-7 761 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC95075  Galium aparine Andrea Pickart 2002-6-30 133 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  HSC96241  Galium aparine Kaylea Eickhoff, Cara M. Witte 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  BLMAR595  Galium aparine Jennifer Wheeler 2010-7-28 595 Humboldt Lacks Creek, along Pine Ridge Road, common understory 975 Comment
  HSC19850  Galium aparine J. W. Johnson 1962-4-18 1262 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  HSC70395  Galium bolanderi M. A. Baker 1980-6-7 1846 Humboldt Near Ammon Creek 732 Comment
  JEPS52903  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3848 Humboldt 2.1 mi w Bridgeville (on road to Eureka, along river, steep s-facing slope); Van Duzen River Comment
  HSC19835  Galium muricatum Lauramay T. Dempster, G. L. Stebbins 1963-7-8 3844 Humboldt 1.8 mi. W of Willow Creek town, below Boise Creek Campground 183 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
  JEPS25040  Galium muricatum Andrew P. Nelson 1960-7-19 625 Humboldt Nelson Grove S. fork of Eel River, Humboldt Redwoods State Park (rocky bank of river) Comment
  JEPS52837  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-8 3845 Humboldt along creek 100 yd s campsite (6.2 mi w of Willow Creek town); east fork Willow Creek 487 Comment
  SEINET7722393  Galium nuttallii Chesnut, Drew Humboldt S. Fork Mt. Comment
  HSC100643  Galium trifidum Carl C. Marshall Aug 1886 254 Humboldt Damp woods. Comment
  HSC58207  Galium triflorum Walter Overton 1979-8-1 12322 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  JEPS6537  Galium triflorum W. L. Jepson 1902-6 1911 Humboldt Pepperwood Comment
  CAS-BOT-BC303400  Gamochaeta ustulata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC67509  Garrya buxifolia J. P. Smith, J. O. Sawyer 1973-5-12 6703 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC72784  Garrya buxifolia M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  HSC8389  Garrya elliptica Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  UC1196884  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC154056  Garrya elliptica J. P. Tracy 1900-12-22 975 Humboldt immediate vicinity Eureka 0 Comment
  UC314603  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region 6 Comment
  UCD121101  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  RSA120510  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt South slope along Bar Shanty Road, 5 miles from Orleans. 488 Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  UC1222634  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp 1402 Comment
  UC562736  Gaultheria ovatifolia Joseph P. Tracy Jul 16 1930-Jul 19 1930 9022 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC58911  Gaultheria shallon L. R. Abrams 1916-7-11 6010 Humboldt Mouth of Grizzly Creek on Van Duzor River Comment
  CAS-BOT-BC58913  Gaultheria shallon Alice Eastwood 1907-4-21 20 Humboldt Port Trinidad Comment
  CAS-BOT-BC58922  Gaultheria shallon L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  HSC22500  Gaultheria shallon R. D. Modafferi 1965-4-8 29 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC23125  Gaultheria shallon G. M. Nordstrom 1966-4-24 17 Humboldt Kneeland-Maple Creek Rd., near jct. with Korbel rd. Comment
  HSC23141  Gaultheria shallon Norman Dennis 1965-6-19 125 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC89510  Gaultheria shallon M. Roantree 1985-4-25 3 Humboldt E side of Trinidad Head. Comment
  LA41415  Gaultheria shallon C. B. Wolf; 1930-10-30 1787 Humboldt old Coast Road, 4 mi. S of Thorns 304 Comment
  RSA467223  Gaultheria shallon T. Gertrude Williamson 1924-7-11 s.n. Humboldt Arcata. Comment
  SD51255  Gaultheria shallon Darley F. Howe 1961-8-1 3106 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  UC1197591  Gaultheria shallon Joseph P. Tracy 1911-7-11 3505 Humboldt near Willow Creek (at w side of Trinity River, ridge between Brett's Ranch and Hoopa Valley); Northern Coast Ranges, Trinity River 304 Comment
  UC1537150  Gaultheria shallon Gordon H. True Jr. 1936-5-11 468 Humboldt 12 mi w of Miranda 396 Comment
  HSC55073  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11657 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UCR84793  Genista linifolia Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  UCD105720  Genista monspessulana Joseph M. DiTomaso 1976-3-28 342 Humboldt Arcata, 3rd and 'D' streets. Comment
  UCD105749  Genista monspessulana W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  JEPS24351  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit 1828 Comment
  RSA21018  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  UC1541480  Gentiana sceptrum H. E. and S. T. Parks 1930-9-14 774 Humboldt Big Lagoon Comment
  UC562302  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC8642  Geranium bicknellii D. E. Anderson 1963-5-25 2497 Humboldt 4 mi. E of Petrolia. Comment
  HSC8646  Geranium dissectum R. J. Vernimen 1963-5-11 55 Humboldt 0.5 mi. off Samoa Rd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  HSC69586  Geranium dissectum R. Kalal 1980-7-20 89 Humboldt 0.1 mi. N of RR tracks along road to Arcata Marsh Project/Boat Launching Basin at foot of I St., Arcata 1 Comment
  SEINET14153534 Image available Geranium molle Richard R. Halse 2015-1 9382 Humboldt Eureka; weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  HSC59668  Geranium molle George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  HSC8653  Geranium molle Jack Rockwell 1962-5-4 55 Humboldt 488 Comment
  UC164808  Geranium oreganum Joseph P. Tracy 1911-7-4 3287 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  POM188372  Gilia capitata Marcus E. Jones 1931-6-16 s.n. Humboldt Junction East of Arcata Comment
  HSC40301  Gilia capitata subsp. capitata Thomas W. Nelson, Jane P. Nelson 1976-7-1 2900 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  HSC16983  Gilia millefoliata J. W. Bosworth 1965-5-14 49 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  SD197869  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt Samoa Peninsula near Eureka, along Highway 255, 1.5 mile south of Samoa intersection, west side of highway. 7 Comment
  UC146176  Gilia millefoliata Joseph P. Tracy 1905-6-11 2189 Humboldt sandy field at Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  UC908974  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt near Samoa (sand dunes, on Humboldt Bay); Northern Coast Region, on Humboldt Bay, nr Samoa 6 Comment
  UC176956  Glaux maritima Joseph P. Tracy 1912-6-16 3698 Humboldt near Hookton (Region around Humboldt Bay, Northern Coast Region); Northern Coast Region 0 Comment
  HSC14201  Glechoma hederacea D. W. Snell 1964-4-25 55 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  UC39035  Glyceria elata Harley P. Chandler Jun 1901 1526 Humboldt Klamath River; North Coast Ranges 426 Comment
  UCD85114  Glyceria elata Harley P. Chandler 1901-6-1 1526 Humboldt North Coast Ranges. Klamath River. 426 Comment
  HSC74433  Glyceria striata Gail Newton 1980-8-10 2063 Humboldt Near Blake Mtn. 1707 Comment
  SD64115  Glycyrrhiza lepidota W. Bertsch 1953-7-30 224 Humboldt U. S. 101, Dyerville 60 Comment
  CDA5423  Gnaphalium japonicum T. C. Fuller 1962-8-6 9358 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC39053  Gnaphalium palustre Linda M. Barker 1976-7-5 1639 Humboldt 3 mi. W of Arcata, coastal forest and dunes. Comment
  HSC68038  Gnaphalium palustre J. P. Smith 1976-10-30 8995 Humboldt Mad River, E of Essex Lane exit. Comment
  UCD132406  Gnaphalium palustre Linda M. Barker 1976-7-5 1639 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  SEINET10726165  Gnaphalium palustre Harold E. Parks, Susan T. Parks Parks 24080 Humboldt Abundant in newly cultivated areas; Spruce Cove, Trinidad. Comment
  UC1199345  Gnaphalium palustre Joseph P. Tracy 1930-7-17 9005 Humboldt meadow McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  POM224403  Gnaphalium sphaericum J. T. Howell 1936-8-29 12888 Humboldt Eel River 16 miles N of Garberville. Comment
  HSC99692  Goodyera oblongifolia T. Jimerson, J. Pageau 1979-6-12 535 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  UC1196435  Goodyera oblongifolia Joseph P. Tracy 1934-8-31 13642 Humboldt Kneeland Prairie 762 Comment
  UCD138959  Goodyera oblongifolia Linda M. Barker 1976-8-24 1679 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1196438  Goodyera oblongifolia Joseph P. Tracy 1913-9-21 4412 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  JEPS25052  Gratiola neglecta Joseph P. Tracy 1920-8-15 5378 Humboldt Klamath River Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  CAS-BOT-BC304735  Grindelia hirsutula L. R. Abrams 1927-8-31 12057 Humboldt Along highway between Eureka and Arcata Comment
  CAS-BOT-BC304742  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  UC1347201  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt salt marsh bordering Humboldt Bay at Arcata Arcata (region of type locality) Comment
  BLMAR308  Grindelia stricta Jennifer Anthony-Wheeler 2002-7-1 308 Humboldt South Spit 6 Comment
  RSA46482  Grindelia stricta var. stricta Doris K. Kildale 1925-7-10 944 Humboldt Dyerville. Comment
  HSC101976  Hackelia micrantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 873 Humboldt Patterson Meadows 1566 Comment
  HSC102601  Hackelia micrantha M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1588 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC1222483  Hainardia cylindrica Joseph P. Tracy 1938-7-15 16071 Humboldt Mouth of Eel River Eel River 3 Comment
  CAS-BOT-BC508212  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  POM160314  Hastingsia serpentinicola Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain. 1463 Comment
  HSC58345  Helenium bigelovii Overton, Butler 1979-8-2 12673 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC36271  Helenium bolanderi John Rehling 1974-8-22 34 Humboldt Big Lagoon Bog along the dryer margins Comment
  HSC34540  Hemitomes congestum Hap Ponedel 1975-9-20 Humboldt N side of Murray Rd, 1-2 mi. from Central Ave., McKinleyville, CA. Bulk Collection 83 Comment
  CAS-BOT-BC309987  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Northern Coast Ranges. Three Cabins; on lower western foothills of Chaparral Mountain 457 Comment
  UC180194  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1906-7-4 2530 Humboldt Hydesville 60 Comment
  UC205206  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1919-7-20 5183 Humboldt w side near top Mount Pierce; Northern Coast Ranges, Mount Pierce 914 Comment
  SD53245  Heracleum maximum Darley F. Howe 1962-5-22 3301 B Humboldt 0.5 miles north of Orick on # 101 29 Comment
  UC169086 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3639 Humboldt Bucksport; Humboldt Bay 0 Comment
  HSC13055  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 368 Humboldt HSC Campus, Arcata Comment
  UC1541522  Heterocodon rariflorum H. E. Parks and J. P. Tracy 1934-6-27 11084 Humboldt Grouse Mountain Comment
  UC168968  Heterocodon rariflorum Joseph P. Tracy 1905-7-6 2199 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC40850  Heterocodon rariflorum Thomas W. Nelson 1976-7-9 3000 Humboldt Along W side of ridge S of E peak of Mount Lassic group. 1524 Comment
  UC198602  Heteromeles arbutifolia Miss Landergen Dec 1916 Humboldt Fort Seward; Northern Coast Ranges 91 Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  HSC70966  Heuchera micrantha Gail Newton 1980-7-15 1582 Humboldt Near Sims Mtn. 1311 Comment
  SEINET9736844  Heuchera micrantha Unknown 1923-6-27 6379 Humboldt Trinity River Valley, near the South Fork 183 Comment
  UC1222390  Heuchera micrantha Joseph P. Tracy 1950-6-8 18716 Humboldt 2 mi s Ferndale (Wild Cat Road, at the Sand Cut) 304 Comment
  UC56719  Heuchera micrantha var. diversifolia Harley P. Chandler May, 1901 1231 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  SEINET207134  Heuchera parvifolia J. P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
Read comments
Jul 16 2018
  CAS-BOT-BC312398  Hieracium albiflorum Carl D. Duncan 1920-9-28 s.n. Humboldt Hoopa Comment
  HSC99543  Hieracium albiflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 208 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA44541  Hieracium albiflorum H. M. Pollard 1947-8-23 s.n. Humboldt Fontana's Fishing Lodge, near Orleans. Comment
  UC1199462  Hieracium nudicaule Joseph P. Tracy 1911-7-6 3363 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA156091  Hierochloe occidentalis W. A. Silveus 1938-7-9 2960 Humboldt Dyerville. Comment
  HSC10121  Holcus lanatus H. E. Parks, S. T. Parks Aug 1943 24260 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC10129  Holcus lanatus Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC89550  Holcus lanatus M. Roantree 1985-5-7 42 Humboldt SW side of Trinidad Head, along trail Comment
  UCD84982  Holcus lanatus Collector Unknown 1923-7-12 s.n. Humboldt Briceland. Comment
  RSA183590  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  RSA85262  Holodiscus discolor F. W. Peirson 1926-7-13 8655 Humboldt Near Blue Lake, Mad River. Comment
  HSC102700  Hordeum marinum subsp. gussoneanum J. P. Smith 2013-6-16 13727 Humboldt Along State Route 36, just west of the 31.40 highway sign (milepost). 757 Comment
  UC1103483  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1936-6-9 14913 Humboldt on the road from Bull Creek to Upper Mattole; Windy Nip Garp 609 Comment
  UC38634  Hordeum marinum subsp. gussoneanum Harley P. Chandler 1901-6-1 1431 B Humboldt Klamath River North Coast Ranges, Klamath River 335 Comment
  CAS-BOT-BC536630  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  UC183550  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1913-6-17 4163 Humboldt near summit (Buck Mountain); Northern Coast Ranges 1524 Comment
  HSC34653  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 5726 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  HSC96225  Horkelia tridentata var. flavescens Eric Schori, Kazuyuki Ishimaru 2005-6-24 15 Humboldt Titlow Hill Rd. S of Hwy. 299, Buck Flat 1595 Comment
  SEINET957089  Hosackia rosea J. P. Tracy 1949-1 18321 Humboldt Undergrowth in woods near Boynton Prairie 12 miles southeast of Arcata; abundant especially in Tan Oak areas spreading by rootstocks. Comment
  JEPS1633  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  RSA298345  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes. 1585 Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  HSC98128  Hypericum anagalloides Cara Witte 2007-6-28 380 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  UC108651  Hypericum concinnum unknown 1148 Humboldt Eel R. 548 Comment
Read comments
Feb 5 2011
  SD51268  Hypericum perforatum Darley F. Howe 1961-8-2 3118 Humboldt 7.7 miles east of Orick on Bald Mountain road. 609 Comment
  UC1004334  Hypericum perforatum W. L. Colwell 1954-11-20 19 Humboldt along Eel R. 3 mi. e. of S. Fork; Quadrangle 29B4, Eel R. 91 Comment
  CAS-BOT-BC401304  Hypericum scouleri Ira L. Wiggins 1932-7-18 5886 Humboldt Between Arcata and Bayside Comment
  CAS-BOT-BC312888  Hypochaeris glabra Barry Silver 1986-5-18 602 Humboldt Bull Creek Flats Road, 100 yds. w. of junction with Highway 101 Comment
  HSC45647  Hypochaeris glabra Diane L. Reed 1978-4-22 19 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  CAS-BOT-BC311435  Hypochaeris radicata M. S. Jussel 1931-5-2 81 Humboldt 20 miles north of Garberville Comment
  HSC90684  Hypochaeris radicata Gail Newton 1982-5-1 2488 Humboldt Eureka, Elk River Wildlife Area Comment
  SEINET10830077 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 Tracy 16104 Humboldt Willow Creek anyon, along Trinity Highway. 762 Comment
  UC902183 Image available Iliamna latibracteata Joseph P. Tracy 1946-7-28 17623 Humboldt Along Trinity Highway Willow Creek Canyon. 762 Comment
Read comments
Feb 27 2012
  UC204418  Ionopsidium acaule Mrs. R. D. Douglas 1918-5-4 Humboldt near Ferndale Cemetary (Ferndale); Northern Coast Ranges, Ferndale 15 Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC13857  Iris douglasiana Elrid H. Spinas 1948-6-16 59 Humboldt Horse Mtn. 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
  UC52242  Iris douglasiana J. P. Tracy 1903-8-9 1939 Humboldt immediate vicinity Eureka 0 Comment
  HSC13863  Iris douglasiana W. R. Brigham 1962-5-20 19 Humboldt End of old Hwy. 101, N of Big Lagoon Rd. Comment
  RSA136681  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16508 Humboldt 14.7 miles north of Trinidad, Highway 101 6 Comment
  UC1103022  Iris douglasiana J. P. Tracy 1901-5-12 1079 Humboldt vicinity Eureka 0 Comment
  JEPS17226  Iris macrosiphon Joseph P. Tracy 1927-6-12 8138 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  RSA135933  Iris purdyi Lee W. Lenz, E. K. Balls 1955-5-16 20743 Humboldt 2.3 miles southeast of Upper Mattole, on Old Coast Road to Ettersburg 91 Comment
  SEINET3876004  Iris purdyi Rimo C. Bacigalupi, William Constance; S. M. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3414 Humboldt Under forest in meadow about Snow Camp. Ridge between Mad River and Redwood Creek, Bald Mountain.; 0 1433 Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  RSA0000278  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt Wooded hillsides along Klamath River, Orleans. 122 Comment
  HSC44339  Iris tenuissima Brad W. Klipfel 1975-6-17 683 Humboldt Horse Mtn. Comment
  HSC70763  Iris tenuissima R. York 1980-5-17 538 Humboldt Near Le Perron Peak 1066 Comment
  CDA39594  Iris tenuissima Rex E. Marsh 1961-4-1 s.n. Humboldt 2 miles south of Garberville. 0 Comment
  JEPS88847  Iris tenuissima Carol A. Wilson 1992-5-17 92 -ph22 Humboldt 12.1 mi e U.S. Hwy 101 (on Bald Hill Rd); Redwood National Park 701 Comment
  RSA120727  Isatis tinctoria S. S. Tillett 1956-7-6 606 Humboldt Above Klamath River, along Ishi Rish Road, 1 mi N of Orleans. 168 Comment
  CAS-BOT-BC88653  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  UC668264  Isopyrum stipitatum Joseph P. Tracy 1935-5-5 13802 Humboldt Kneeland Prairie 822 Comment
  SEINET11261291  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay.; 0 Comment
  JEPS66910  Juncus bolanderi Joseph P. Tracy 1918-7-3 4992 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  HSC39770  Juncus bufonius Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  RSA246802  Juncus bufonius Robert F. Thorne, Percy C. Everett 1965-8-7 35229 Humboldt Samoa Peninsula. 3 Comment
  RSA46737  Juncus bufonius Doris K. Kildale 1927-6-25 3571 Humboldt Between Horn and Shelter Cove. Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  SEINET10756160 Image available Juncus effusus var. exiguus Unknown Rattan 5 Humboldt Comment
  HSC69862  Juncus ensifolius Thomas W. Nelson, Ken Hindley 1978-5-28 4085 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UCD141534  Juncus ensifolius Malcolm A. Nobs; S. Galen Smith 1949-8-3 1199 Humboldt Southern outskirts of Eureka. Comment
  UC1103035  Juncus ensifolius Joseph P. Tracy 1921-10-16 5970 Humboldt near Willow Creek (mouth of South Fork Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC40877  Juncus hesperius Linda M. Barker 1976-6-1 1568 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA42045  Juncus hesperius Ella Dales Cantelow 1936-8-28 1634 Humboldt 4 1/2 miles SW of Dinsmore s Comment
  HSC90770  Juncus lescurii Gail Newton 1982-6-10 3608 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA246873  Juncus nevadensis var. inventus Robert F. Thorne, Percy C. Everett 1965-8-7 35174 a Humboldt Big Lagoon. 2 Comment
  CHSC103201  Juncus occidentalis Peter F. Zika 2009-6-16 24496 Humboldt Outer North Coast Range, between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. 510 Comment
  UC184144  Juncus occidentalis Joseph P. Tracy 1912-6-26 3707 Humboldt Eureka Northern Coast Region 0 Comment
  UC249746  Juncus occidentalis Joseph P. Tracy 1923-6-19 6295 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC183774  Juncus occidentalis Joseph P. Tracy 1908-6-22 2901 Humboldt between Van Duzen River and Mad River (on Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  HSC63280  Juncus parryi M. A. Baker 1979-6-27 930 Humboldt Rock faces E of Oregon Creek Comment
  UC1152147  Juncus phaeocephalus var. paniculatus Joseph P. Tracy 1938-7-24 16086 Humboldt corner of Pacific and A Streets Eureka Comment
  HSC58135  Juniperus communis var. saxatilis Gilbert Muth 1979-8-1 12143 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UCD117516  Kalmia polifolia Joseph P. Tracy 1942-6-23 17262 Humboldt Local at 'Water Dog Lakes,' Trinity Summit. 1889 Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  UC1193337  Keckiella corymbosa P. Zinke 184 Humboldt 300 yds nw of summit King Peak 1249 Comment
  UC1222788  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19314 Humboldt 1 mi s mouth of Salmon River (along e side of Salmon River); Klamath River Comment
  UC582472  Kickxia elatine Joseph P. Tracy 1934-6-22 13246 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC922033  Koeleria macrantha Joseph P. Tracy 1936-8-2 15072 Humboldt French Camp Ridge 1066 Comment
  UC1196128  Kopsiopsis strobilacea Joseph P. Tracy Jul 16-19, 1930 9030 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout. 1706 Comment
  UC27903  Kopsiopsis strobilacea Harley P. Chandler June 1901 1300 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Mts. (Hupa Mts.) Comment
  UC302193  Lapsana communis Joseph P. Tracy 1926-6-6 7553 Humboldt Bair's on Redwood Creek Northern Coast Ranges, Redwood Creek 304 Comment
  CAS-BOT-BC337994  Lasthenia californica Doris K. Kildale 1926-5-9 1992 Humboldt Kneeland Prairie at rock pile 853 Comment
  UC129576  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1260 Humboldt Redwood belt; Coast Ranges 152 Comment
  UC195066  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 182 Comment
  JEPS98949  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Red Mountain (type locality) Comment
  HSC103354  Lathyrus glandulosus Thomas W. Nelson, Jane Nelson 1983-6-12 7405 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  CAS-BOT-BC204952  Lathyrus japonicus Doris K. Kildale 1925-7-15 1086 Humboldt Eureka Slough Comment
  UC931200  Lathyrus lanszwertii var. tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 mi se Willow Creek (along Highway 299) Comment
  HSC46016  Lathyrus latifolius Catherine Chin 1978-8-5 101 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  SEINET5021117  Lathyrus latifolius Unknown 2002-8-17 81 b Humboldt Beach of Eel River, 10 miles S of Garberville on Hwy 101, at Benbow Drive. Comment
  UCD106361  Lathyrus latifolius W. A. Williams 1951-6-15 s.n. Humboldt 20 mi. E. Willow Creek. Comment
  HSC33764  Lathyrus littoralis Paul Dryden 1975-5-24 206 Humboldt Samoa Dunes, across from the boat landing. Comment
  HSC47485  Lathyrus littoralis Sheila Logan 1978-4-7 3 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  UC495712  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt near Samoa; Northern Coast Ranges 6 Comment
  UC1199075  Lathyrus polyphyllus Joseph P. Tracy 1935-7-22 14126 Humboldt Klamath Mountains, Trinity Summit, near Corral Prairie. Comment
  HSC75555  Lathyrus torreyi J. O. Sawyer, J. Cole 1977-7-3 3004 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA64950  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-8 19092 Humboldt Near Willow Creek National Forest Camp, 4 miles W of town of Willow Creek. Comment
  UC249862  Leersia oryzoides Joseph P. Tracy 1924-8-31 6836 Humboldt Klamath River at Bluff Creek Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  HSC59676  Leontodon saxatilis subsp. saxatilis George Kirn 1977-10-30 Humboldt 1/2 mi. from mouth of Elk River 8 Comment
  JEPS36508  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt near Blue Lake; Mad River Comment
  HSC89416  Leontodon saxatilis subsp. saxatilis P. A. Daly 1986-1-20 45 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC89074  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 0.25 mile west of its junction with Arcata, in Bayside. 15 Comment
  CAS-BOT-BC89077  Lepidium didymum Joseph P. Tracy 1938-7-15 16067 Humboldt Mouth of Eel River. 3 Comment
  HSC47608  Lepidium lasiocarpum J. P. Smith 1977-4-23 9024 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC492270  Lepidium nitidum Joseph P. Tracy 1932-4-24 9809 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  BLMAR462  Lepidium nitidum Jennifer Anthony-Wheeler 2008-3-7 462 Humboldt Samoa dunes, growing in Samoa #3 Endangered Plant Protection Area 12 Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  CHSC42328  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg. Comment
  UC535713  Leptosiphon latisectus Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove 121 Comment
  UCD118969  Leptosiphon nuttallii P. B. Kennedy 1923-8-3 s.n. Humboldt 7 miles from Bluff Creek. Klamath River to Eureka. Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC39167  Leucanthemum vulgare D. E. Anderson, J. P. Smith 1971-6-28 - 1236 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCR70876  Lewisia cotyledon var. howellii Lincoln Constance, R. C. Rollins 1942-5-12 2885 Humboldt MOuth of Bluff Creek, 6 mi NE of Weitchpec 152 Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  RSA129556  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt Near mouth of Little River 5 Comment
  SEINET200640 Image available Leymus pacificus Joseph P. Tracy 1914-7-16 4586 Humboldt Eureka, Humboldt Bay. Comment
  CAS-BOT-BC272247  Leymus triticoides David D. Keck 1944-7-11 5496 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC436498  Ligusticum apiifolium John Thomas Howell 1937-7-31 13714 Humboldt Boise Creek Comment
  JEPS14253  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
Read comments
May 25 2012
  CAS-BOT-BC451581  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt Cape Ridge - back of Cape Mendocino 304 Comment
  HSC76428  Lilium bolanderi Denis Kearns 1981-7-6 87 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC508390  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC508397  Lilium columbianum W. R. Dudley 1899-1-1 s.n. Humboldt Big Lagoon, south of Klamath River Comment
  HSC35943  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2036 Humboldt Along Old Hwy. 101 N of Trinidad Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UC54670  Lilium occidentale J. P. Tracy 1901-6-23 1189 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  CAS-BOT-BC130732  Lilium pardalinum Doris K. Kildale 1928-7-25 5693 Humboldt Chalk Mountain 914 Comment
  UC1198234  Lilium pardalinum Joseph P. Tracy 1926-6-1 7552 Humboldt Eureka Northern Coast Ranges (in garden) Comment
  UC666956  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS62008  Lilium pardalinum Hilda Grinnell 1932-7-19 31 Humboldt near McKay Camp 1676 Comment
  HSC57911  Lilium pardalinum subsp. pardalinum Gilbert Muth 1979-7-31 11520 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC15580  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  RSA44370B  Lilium washingtonianum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  HSC98686  Lilium washingtonianum subsp. purpurascens Cara Witte 2008-7-10 867 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  RSA12530  Lilium washingtonianum subsp. purpurascens Carl B. Wolf 1934-7-2 5908 Humboldt 7 miles from Bald Mountain on road to Snow Camp (mountains east of Korbel) 1067 Comment
  OBI12589  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt S Fork Eel River. Upper Look Prairie 366 Comment
  UC668277  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1911670 Image available Limonium californicum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1203 Humboldt ca 2 mi n Eureka (salt marshes bordering Humboldt Bay); Humboldt Bay Comment
  UC54709  Linanthus androsaceus Joseph Burtt Davy and Walter C. Blasdale 1899-5 5371 Humboldt near Harris Comment
  UC1198574  Linanthus bicolor Joseph P. Tracy 1937-5-17 15288 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198539  Linanthus harknessii Joseph P. Tracy 1933-8-30 13022 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC908619  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1935-6-23 13968 Humboldt French Camp Ridge 1066 Comment
  HSC12026  Linaria vulgaris D. Santana 1970-11-2 100 Humboldt E side of old Hwy. 1 in ditch Comment
  RSA54141  Lindernia dubia var. dubia H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  UC179969  Linnaea borealis var. longiflora Joseph P. Tracy 1914-7-5 4571 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC1561309  Linum bienne Barbara Ertter with Thomas J. Delendick 1987-5-16 6911 Humboldt 8 mi e of Arcata (9 1/2 mi w of Lord Ellis Summit, Highway 299 roadside); Highway 299 Comment
  HSC59444  Linum bienne Kenneth Clark 1979-4-18 110 Humboldt 1 block E on California Ave., in Arcata. Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UCSB13395  Linum usitatissimum Dearing, Hugh; Dearing, Margaret 1939-6-23 Humboldt 30 miles east of Arcata Comment
  HSC95191  Listera cordata var. nephrophylla Gordon Leppig, Tony LaBanca 2003-5-22 1943 Humboldt Humboldt Redwoods State Park, Fleismann's Grove 76 Comment
  UC1076088  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt East Fork of Eel River East Fork of Eel River, Gaberville; Gaberville Comment
  POM270414  Lithocarpus densiflorus var. densiflorus Lyman Benson 1927-7-12 224 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  CAS-BOT-BC36585  Lithocarpus densiflorus var. echinoides Russell W. Beeson 1925-7-14 B- 26 Humboldt Pilot Ridge, Forest Stanislaus 1584 Comment
  UC492223  Lithophragma Joseph P. Tracy 1932-4-24 9823 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1196491  Lithophragma affine Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 B Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC430610  Lithophragma affine Mark Bransom; Daniel Brown; Ron Hildebrant; Nina Meiselman 1986-4-19 18 Humboldt 1 1/2 mi. west of Burnt Ranch on Rt. 299 down dirt road leading from open meadow above Burnt Ranch campground Comment
  CAS-BOT-BC435645  Lithophragma heterophyllum Volney Rattan 1883-6-1 s.n. Humboldt Between Mad R. and Pilot Creek Comment
  UC1223118  Logfia gallica Joseph P. Tracy 1950-6-23 18869 Humboldt 3 mi ne of Alderpoint; Doppyn Creek 213 Comment
  HSC10310  Lolium perenne Paul Shields Nov 1954 Humboldt Humboldt State campus. Comment
  HSC47797  Lolium perenne Michael A. Watkins 1978-6-10 1 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC64156  Lolium perenne J. O. Sawyer, K. A. Sawyer 1979-6-24 3403 Humboldt Slopes alongside Aikens Creek. 366 Comment
  RSA44450  Lolium perenne subsp. multiflorum Henry M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  UC1103158  Lolium temulentum Joseph P. Tracy 1909-8-1 3064 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC21575  Lomatium dasycarpum subsp. dasycarpum Francis Winter 1960-4-24 Humboldt 1 mi. W of Burnt Ranch 381 Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC50942  Lomatium macrocarpum G. L. Clifton, Overton 1979-6-3 3765 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  HSC46923  Lomatium tracyi Brad Klipfel 1974-5-27 381 Humboldt Horse Mtn. Comment
  RSA273299  Lomatium tracyi B. Kelly 1977-7-16 537 Humboldt 1/4 mile in from Horse Mountain Road, 1/2 mile below turnoff to summit, near end of unused gravel road. Comment
  UC906647  Lomatium triternatum var. triternatum Joseph P. Tracy 1947-7-5 17778 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  JEPS13668  Lonicera conjugialis W. L. Jepson July 16 - 23, 1902 2036 Humboldt Trinity Summit 2133 Comment
Read comments
Apr 8 2012
  SD88513  Lonicera involucrata Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  HSC31644  Lonicera involucrata var. ledebourii Glenn McGourty 1974-6-1 78 Humboldt Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  SBBG7361  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  HSC1873  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  UC162798  Lotus aboriginus Joseph P. Tracy 1906-6-10 2485 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197313  Lotus aboriginus Joseph P. Tracy 1927-8-22 8354 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  UC1197309  Lotus crassifolius var. crassifolius Joseph P. Tracy 1911-7-7 3416 Humboldt between Willow Creek and Campbell Creek (vis ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  RSA168888  Lotus denticulatus Joseph P. Tracy 1933-6-25 12625 Humboldt Eel River Bar at Camp Grant 3 miles above junction of the South Fork. Comment
  HSC38494  Lotus humistratus D. E. Anderson, J. P. Smith 1971-6-18 - 1092 Humboldt Horse Mtn. Comment
  POM276694  Lotus unifoliolatus Lyman Benson 1928-7-12 462 Humboldt Weott Ranger Station. 61 Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  JEPS64896  Lupinus albicaulis Joseph P. Tracy 1923-6-19 6298 Humboldt near King's Peak (Wilder Ridge); Northern Coast Ranges 762 Comment
  UC1223267  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-6-25 18340 Humboldt at Big Hill on road w Box Camp (w slope of summit Trinity Summit); Trinity Summit, at Big Hill Comment
  UC503003  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC50953  Lupinus andersonii G. L. Clifton, Overton 1979-6-3 3777 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC40973  Lupinus arboreus Linda M. Barker 1976-5-13 1494 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC1197275  Lupinus bicolor Joseph P. Tracy 1939-4-18 16219 Humboldt Garberville 152 Comment
  JEPS64982  Lupinus bicolor Lincoln Constance 1934-5-26 664 Humboldt s end Dyerville (South Fork Eel River); South Fork Eel River 45 Comment
  RSA256586  Lupinus bicolor Lon Hall 1975-5-24 382 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  CAS-BOT-BC205381  Lupinus elmeri Joseph P. Tracy 1930-7-16 8954 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1737 Comment
  HSC61195  Lupinus latifolius Jimerson, J. Pageau 1979-5-24 475 Humboldt Near Orleans 226 Comment
  SEINET12154564  Lupinus latifolius J. P. Tracy 1941-1 16916 Humboldt Panther Gap on the Bull Crk - Mattole Rd Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole Comment
  UC865228  Lupinus latifolius var. latifolius Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  UC503015  Lupinus latifolius var. viridifolius Joseph P. Tracy 1929-7-4 8624 Humboldt French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  UCD108590  Lupinus lepidus var. sellulus Richard Spellenberg 1965-6-13 1110 Humboldt on e. side of Trinity River, about 3/4 mi. s. of hwy. through Hoopa Indian Reservation. Comment
  UC584210  Lupinus littoralis David D. Keck and J. Clausen 1935-6-16 3383 Humboldt Mouth of Little River Comment
  UCD107971  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC150137  Lupinus littoralis Joseph P. Tracy 1911-11-5 3556 Humboldt Ocean Beach Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC150118  Lupinus nanus Harley P. Chandler June, 1901 1314 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  SEINET10451628  Lupinus nanus subsp. nanus Smith 1948-5-10 Smith 48253 Humboldt Hwy 101, garberville, .3 mi n. Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC56410  Luzula comosa Griswold, Butler 1979-7-11 7044 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC97585  Luzula comosa C. Witte 2007-5-18 39 Humboldt Grouse Mountain Lookout. 1644 Comment
  UC1103679  Luzula comosa var. laxa Joseph P. Tracy 1918-5-12 4930 Humboldt Northern Coast Ranges at Eureka. Edge of woods near Cutten and McDonald Tract 0 Comment
  UC964789  Luzula comosa var. laxa Harold E. Parks and Joseph P. Tracy 1947-6-26 11643 Humboldt McKay Camp, South Fork Mt. 1676 Comment
  UC1152126  Luzula parviflora Harold E. Parks and Joseph P. Tracy 1947-7-5 17811 Humboldt vicinity Box Camp (w side Trinity Summit); , vicinity Box Camp 1463 Comment
  UC184187  Luzula parviflora Joseph P. Tracy 1900-5-28 810 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  SD46471  Luzula parviflora E. K. Balls, L. W. Lenz 1956-6-12 21662 Humboldt 4.4 miles southwest from Willow Creek, along US Highway 299 to Arcata. Common in shade on moist to wet seeps. 366 Comment
  UC1103686  Luzula subsessilis Joseph P. Tracy 1921-4-24 5449 Humboldt Northern Coast Ranges. Phillipsville Flat South Fork Eel River 91 Comment
  UC183767  Luzula subsessilis Joseph P. Tracy 1914-5-14 4443 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  HSC96476  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UC524369  Lycopodiella inundata Ira L. Wiggins 1932-7-19 5893 Humboldt low swamp at s end Big Lagoon Comment
  CAS-BOT-BC61931  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 01132 Humboldt Camp 21 Hammon Lumber Company, Trinidad 152 Comment
  UC1745149  Lycopodium clavatum Clare T. Golec 2000-7-13 Humboldt NE of Blue Lake 182 Comment
  CAS-BOT-BC61933  Lycopodium clavatum Wayne Roderick 1967-9-15 s.n. Humboldt Camp 18, Georgia-Pacific Company e. of Trinidad 30 Comment
  OBI1071  Lycopodium inundatum Lawrence L. Kiefer 1964-5-20 1436 Humboldt Big Lagoon State Park 23 Comment
  JEPS63270  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1198268  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  UCR179284  Lysichiton americanus R. G. Swinney 1968-3-29 238 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC36094  Lysichiton americanus Michael L. Chase 1973-5-14 10 Humboldt Along Van Duzen at junction with Yager Creek 37 Comment
  SEINET11770340  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  UC1733678  Lysichiton americanus Kay H. Beach, Frank Gould 1940-5-5 478 Humboldt near Fields Landing. Comment
  UC524124  Lythrum hyssopifolia Ira L. Wiggins 1932-7-19 5889 Humboldt about 8 mi n of Arcata (near Clam Beach) Comment
  UC668292  Lythrum hyssopifolia Joseph P. Tracy 1938-7-5 16011 Humboldt Carlotta, by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  HSC90841  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  CAS-BOT-BC334475  Madia Robert F. Thorne; P. Everett 1965-8-7 35216 b Humboldt Samoa Peninsula, elev near sea level. 0 Comment
  CAS-BOT-BC342805  Madia elegans S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3483 Humboldt Highway about one mile west of Bridgeville Comment
  HSC71712  Madia exigua M. A. Baker 1980-6-26 2431 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC343021  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  CAS-BOT-BC343029  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi. S.E. of Petrolia; halfway between upper Mattole and Honeydew, Mattole River 121 Comment
  HSC67886  Madia gracilis J. P. Smith 1973-5-26 6868 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC71593  Madia gracilis M. A. Baker 1980-6-26 2402 Humboldt Near Sims Creek 610 Comment
  UC176727  Madia gracilis Joseph P. Tracy 1909-8-1 3069 Humboldt Kneeland Prairie 762 Comment
  UC495627 Image available Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt lower foothills of northwest slope of Buck Mountain Comment
  POM362170  Madia gracilis subsp. gracilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3607 Humboldt Along road north from Alder Spring 1555 Comment
  RSA167396  Madia gracilis subsp. gracilis Joseph P. Tracy 1950-7-6 19026 Humboldt Sproston's Place, 3 miles south of Burr Valley 1067 Comment
  UCR123956  Madia madioides George K. Helmkamp, E. A. Helmkamp 2001-7-8 6972 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC343589  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  SEINET3992237  Maianthemum dilatatum C. O. Baker 1962-5-7 Humboldt 2 miles south of Trinidad along Hwy 101. Comment
  HSC48830  Maianthemum racemosum subsp. amplexicaule Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 40 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  RSA289948  Maianthemum racemosum subsp. amplexicaule Lincoln Constance 1934-6-2 793 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  HSC98525  Malacothrix clevelandii Cara Witte 2008-7-10 845 Humboldt National Forest 1. 2 miles north of intersection with Forest Service Road 4N09. 1267 Comment
  CHSC10136  Marah oregana J. W. Johnson 1962-3-31 1412 Humboldt Along the Lanphere Lane, Samoa Peninsula, Arcata. Comment
  HSC7029  Marah oregana D. A. Shally 1965-5-15 46 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  JEPS42470  Marah oregana W. L. Jepson 1932-7-24 16377 Humboldt near Camp Grant; Eel River 91 Comment
  SJSU11758  Marah oregana R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  HSC7028  Marah oregana J. W. Johnson 1962-3-31 1412 Humboldt Arcata, along the Lanphere Lane near the swamp, Samoa Peninsula Comment
  JEPS42487  Marah oregana W. L. Jepson 1897-7-31 14136 Humboldt De Haven to Fort Bragg Comment
  POM128304  Marah oregana H. P. Chandler 1901-6-10 1407 Humboldt Saint's Rest; Klamath River. 152 Comment
  UC1197432  Medicago lupulina Joseph P. Tracy 1915-7-25 4662 Humboldt Eureka Northern Coast Region 0 Comment
  HSC37910  Medicago polymorpha Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC162809  Medicago polymorpha J. P. Tracy 1909-8-15 3076 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC281322  Melica harfordii Joseph P. Tracy 1926-6-20 7651 Humboldt North Coast Ranges. Horse Mountain 1524 Comment
  UCD87540  Melica harfordii Peter H. Raven; R. Snow 1958-7-20 13626 Humboldt 5.3 miles southwest of Denny Post Office. Comment
Read comments
Apr 8 2014
  SEINET200110 Image available Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Trinity Summit head of Brett Hole 1830 Comment
  UC552690  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt w side at top Salmon Summit 2103 Comment
  CAS-BOT-BC264164  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain 1524 Comment
  HSC74687  Melica subulata Gail Newton 1981-8-7 2441 Humboldt Near Bug Creek. 1042 Comment
  RSA183536  Melica subulata H. S. Logsdon 1964-5-10 6 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  UCD88639  Melica subulata A. H. Murphy 1950-1 s.n. Humboldt E. M. Cottrell Ranch. Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  UC1239693  Mentha aquatica Joseph P. Tracy 1918-11-17 5120 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC577379  Mentha canadensis Joseph P. Tracy 1924-8-31 6854 Humboldt Klamath River at mouth of Bluff Cr.; Klamath River at mouth Bluff Cr. 91 Comment
  HSC23730  Mentha pulegium Tim Baroni 1971-7-5 99 Humboldt Comment
  POM283192  Mentha pulegium Lyman Benson 1929-7-14 1558 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  RSA12460  Mentha pulegium Carl B. Wolf 1934-6-30 5833 Humboldt 0.5 mile from Briceland on road to Garberville. 91 Comment
  SEINET10498893  Mentha pulegium Mary Susan Taylor 1977-8-5 Taylor 1429 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  JEPS80896  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1572 Humboldt U.S. Highway 101 Mile 128.75 Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET202280  Micropus californicus var. californicus J. P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  SEINET11601912 Image available Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Show Camp, ca. 9 miles S of Ranger Station. In sphagnum bog SE end of the lake Comment
  UC582439  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1223198  Microseris douglasii subsp. douglasii Joseph P. Tracy 1950-7-6 19001 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  CAS-BOT-BC322678  Microseris laciniata Doris K. Kildale 1927-7-17 3750 Humboldt Big Creek 792 Comment
  CHSC62187  Microseris nutans K. L. Chambers 1990-6-23 5515 Humboldt Horse Mtn., off Titlow Hill Rd., s. of Hwy. 299, e. of Arcata. On slope below the parking lot for the winter spots area. 1493 Comment
  UC582732  Microseris nutans Joseph P. Tracy 1933-7-9 12653 Humboldt Brannan Mountain North Coast Ranges 1066 Comment
  SEINET7016944  Microseris paludosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC45807  Microsteris gracilis J. P. Smith, Steve Selva 1970-6-30 4099 Humboldt Comment
  HSC79496  Mimulus aurantiacus var. aurantiacus Kenneth Clark 1979-7-1 452 Humboldt Dead Man's Gulch and throughout Shelter Cove 15 Comment
  JEPS87265  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1115 Humboldt just n Miranda (0.1 mi s of bridge over Bridge Creek along Hwy 254 (parallels Hwy 101)) 100 Comment
  HSC101989  Mimulus breweri M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 888 Humboldt Patterson Meadows 1555 Comment
  HSC55989  Mimulus breweri Overton, Butler 1979-7-31 11404 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  POM273296  Mimulus cardinalis Lyman Benson 1928-7-12 491 Humboldt Weott Ranger Station, North Coast, Seaward Mt. Range on S. Fork Eel River 61 Comment
  RSA430202B  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1196836  Mimulus grandis J. P. Tracy 1901-6-16 1139 Humboldt immediate vicinity Eureka (near Bucksport) 0 Comment
  HSC22805  Mimulus guttatus D. E. Anderson, J. P. Smith 1970-5-10 5062 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  JEPS10484  Mimulus guttatus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC20761  Mimulus guttatus R. Spellenberg 1964-6-15 407 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  SEINET200707  Mimulus kelloggii H. P. Chandler 1901-6-1 1480 Humboldt N Coast Ranges Klamath River 427 Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  UC445201  Mimulus moniliformis Mrs. M. H. Manning July 1901 302 Humboldt near Hupa Comment
  HSC55693  Mimulus moschatus Overton, Butler 1979-7-26 10014 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  RSA80459  Mimulus moschatus var. sessilifolius F. W. Peirson 1926-7-12 7038 Humboldt Orick. Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  UC1196805  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 Comment
  JEPS28974  Mimulus pulsiferae Joseph T. Gregory 1933-7-25 473 Humboldt Titlow Mt. 1371 Comment
  UC1116233  Minuartia californica Joseph P. Tracy 1948-6-13 18055 Humboldt ridge top near Harris 914 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CDA21079  Minuartia douglasii G. F. Hrusa 1993-6-17 11221 Humboldt Red Mountain; Summit of road cut at entrance gate to Red Mtn. Comment
  HSC32136  Minuartia nuttallii subsp. gregaria D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5605 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC36642  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 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
  HSC48742  Moehringia macrophylla Brad Klipfel 1973-6-10 67 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57122  Monardella odoratissima subsp. pallida Walter Overton, Marvin Butler 1979-7-25 9870 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC1222870  Monardella purpurea Joseph P. Tracy 1950-7-27 18920 Humboldt at intersection of Haynes Flat Road Coon Mountain 944 Comment
  UC416723  Monardella villosa subsp. villosa P. E. Goddard 1901-7 3 Humboldt Hupa Valley Comment
  UC718021  Monardella villosa subsp. villosa Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec junction of Klamath & Trinity Rivers, 200 yards west of School. 304 Comment
  CAS-BOT-BC233770  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka 60 Comment
  CAS-BOT-BC445165  Montia parvifolia L. R. Abrams; R. Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon south of Orick Comment
  HSC39174  Montia parvifolia D. E. Anderson, J. P. Smith 1971-6-28 - 1228 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC47501  Morella californica Sheila Logan 1978-4-10 27 Humboldt Foot of Hiller Ave. at Ocean Rd., Pacific Ocean and Mad River 46 Comment
  CAS-BOT-BC260574  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  RSA10148  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  UC1103785  Muhlenbergia filiformis H. E. Parks and Joseph P. Tracy 1934-6-27 11083 Humboldt Grouse Mt. Northern Coast Ranges 1432 Comment
  UC582561  Myosotis discolor Joseph P. Tracy 1937-5-17 15298 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  HSC48727  Myriophyllum sibiricum W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  JEPS79935  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  UCD87653  Nassella pulchra A. H. Murphy 1951-3-30 s.n. Humboldt Mattole Valley. Along roadside near Mattole River Grange Hall. Comment
  HSC79365  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Western beach coastal bluffs, Point Delgada, Shelter Cove 6 Comment
  HSC45289  Navarretia capillaris Brad Klipfel 1973-6-10 293 Humboldt E face of Grogan's Hole, N Trinity Mtn. area Comment
  HSC54718  Navarretia capillaris Overton, Butler 1979-7-26 10083 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  UC1198597  Navarretia divaricata Joseph P. Tracy 1926-6-27 7689 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  POM208984  Navarretia intertexta Lincoln Constance 1934-5-27 697 Humboldt Sandbar of south fork of Eel River at Dyerville bridge 43 Comment
  JEPS70409  Navarretia intertexta subsp. propinqua Chesnut and Drew 1888-1 Humboldt Comment
  UC1197902  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1908-6 2931 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC52878  Navarretia tagetina Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  UC198645  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Bosworths, on Laribee Creek Northern Coast Ranges, Laribee Creek 457 Comment
  POM64955  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point, Northern Coast Ranges 152 Comment
  HSC35029  Nemophila menziesii Thomas W. Nelson, James Nelson 1975-5-24 1845 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1239755  Nemophila menziesii Joseph P. Tracy 1923-6-3 6251 Humboldt near Dsn McBride Place (Kneeland Prairie); , near Dan McBride Place 762 Comment
  JEPS1883  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-10 9928 Humboldt Bear River Ridge , Bear River Ridge (Northern Coast Ranges) 609 Comment
  UC177171  Nemophila menziesii var. atomaria Joseph P. Tracy 1913-5-4 4061 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC34946  Nemophila menziesii var. atomaria Robert M. Specht 1975-4-9 120 Humboldt 2 3/4 mi. N of Trinidad at Scotty Point 30 Comment
  UC203959  Nemophila menziesii var. atomaria Joseph P. Tracy 1918-4-7 4867 Humboldt Moonstone Beach Northern Coast Ranges, Little River, Moonstone Beach (mouth of Little River, grassy slopes facing ocean) 15 Comment
  BLMAR494  Nemophila parviflora Jennifer Wheeler 2009-4-30 494 Humboldt King range, Hidden Valley trail; trail start Comment
  CAS-BOT-BC219405  Nemophila parviflora Doris K. Kildale 1927-3-20 2915 Humboldt Philipsville [Phillipsville], South Fork of Eel River Comment
  CAS-BOT-BC219410  Nemophila parviflora Alice Eastwood; John Thomas Howell 1937-6-24 4864 Humboldt Road to Horse Mt. Comment
  UC176123  Nemophila pedunculata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3605 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC6971  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 mi. S of Hoopa 122 Comment
  HSC20655  Nuttallanthus texanus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  HSC79334  Oemleria cerasiformis D. H. Norris 1970-5-20 12218 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  UC916666  Oenanthe pimpinelloides Joseph P. Tracy 1950-8-18 19330 Humboldt along Blocksburg rd. near bridge across Larrabee Creek 457 Comment
  UC642334  Oenanthe sarmentosa Joseph P. Tracy 1936-8-17 15149 Humboldt near Field's Landing 6 Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  HSC12413  Oenothera glazioviana D. Santana 1970-11-2 98 Humboldt 1 mi. S of Trinidad Comment
  UCD106955  Oenothera wolfii D. Wiesendanger; F. Randall 1926-8-1 1544 Humboldt Near Arcata. Comment
  UC249847  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1924-7-4 6708 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  HSC16681  Orobanche californica subsp. californica H. E. Parks, S. T. Parks 1930-9-14 782 Humboldt Big Lagoon Comment
  CAS-BOT-BC499671  Orobanche californica subsp. californica Ira L. Wiggins 1932-7-19 5894 Humboldt Near the beach at south end of Big Lagoon Comment
  HSC16675  Orobanche uniflora T. M. Mingo May 1965 Humboldt W of College cove near brush Comment
  UC1245410  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 814 Humboldt Head of Devil's Hole, Trinity Summit. Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  RSA246669  Orthocarpus purpurascens var. latifolius Robert F. Thorne, Percy C. Everett 1965-8-7 35219 Humboldt Samoa Peninsula. 3 Comment
  HSC55999  Osmorhiza berteroi Overton, Butler 1979-7-31 11444 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC96256  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC314579  Osmorhiza berteroi Joseph P. Tracy 1923-6-19 6291 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  CHSC1175  Oxalis oregana M. Underhill 1952-7-12 Humboldt 3 Comment
  RSA32865  Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt Near Pepperwood Comment
  UC1130248  Oxalis oregana H. L. Person 1932-8-1 Humboldt Korbel Eureka quad Comment
  SEINET12184454  Oxalis oregana E. A. York 1990-1-10 2664 Humboldt USGS Redwood Field Station, Arcata Comment
  SEINET3347653 Image available Oxalis oregana Loran C. Anderson 1949-6-4 Humboldt South of Eureka Comment
  UCD111002  Oxalis pilosa R. N. Raynor 1935-1 s.n. Humboldt Humboldt County. Comment
  UC166076 Image available Packera bolanderi var. bolanderi Joseph P. Tracy 1911-6-4 3231 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC34654  Packera bolanderi var. bolanderi Chesnut and Drew 1888-7-10 Humboldt Jarnigan's 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
  UC1713146  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-9-29 5106 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork Eel River above its mouth 60 Comment
  UC526837  Panicum acuminatum var. acuminatum Joseph P. Tracy 1925-7-5 7168 Humboldt High Prairie Bald Mountain (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET3133169  Panicum lanuginosum var. fasciculatum R. W. Spellenberg 1966-9-8 1630 Humboldt Bank of S. Fk. Eel River at Hwy. 101, 5 mi S of Barberville Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC39757  Parapholis strigosa Peter Sorensen 1976-7-11 Humboldt Woodley Island. Comment
  JEPS23565  Parentucellia viscosa Peter H. Raven with R. Snow 1958-7-21 13652 Humboldt 2.9 mi s Ferndale (on road to Cape Mendocino) Comment
  HSC72402  Parentucellia viscosa J. P. Smith 1973-5-26 6788 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET10810981  Parentucellia viscosa J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13017 Humboldt North of McKinleyville on U.S. 101 (a few kilometers north of Eureka), on northbound off-ramp (southbound labelled as Route 101 Business) leading to Clam Beach County Park. Comment
  HSC104072  Parnassia palustris S. Carothers 2001-8-29 Humboldt Six Rivers National Forest; Lassics Botanical Area 1537 Comment
  UCSB25613  Parnassia palustris Tracy, Joseph 1934-8-29 Humboldt South Fork Mountain, McKay Camp 1676 Comment
  CAS-BOT-BC259728  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt Dry Lagoon, on coast near Stone Lagoon 3 Comment
  HSC104037  Pedicularis densiflora C. Reynolds 2015-3-21 23 Humboldt Willow Creek; at the entrance to Camp Kimtu 159 Comment
  HSC104271  Pedicularis densiflora Samantha E. Andres 2016-3-14 1 Humboldt Along Hwy. 299, ~5 mi. W of Willow Creek 274 Comment
  UC1222452  Pedicularis densiflora Joseph P. Tracy 1923-3-17 6160 Humboldt vicinity of Garberville 121 Comment
  UC90221  Pedicularis groenlandica Joseph P. Tracy 1947-7-5 17824 Humboldt at Box Camp Box Camp; Trinity Summit 1463 Comment
  UC213504  Pedicularis racemosa Joseph P. Tracy 1919-9-18 5249 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  UC71289  Pellaea brachyptera Chesnut and Drew 1888-7-21 Humboldt Pilot Ridge Comment
  CHSC35535  Pellaea mucronata Thomas Nelson; James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC48023  Penstemon anguineus Brad Klipfel 1973-7-31 259 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1565791  Penstemon anguineus R. Spellenberg 1990-7-9 10226 Humboldt extreme e edge of county 14 air mi sw Burnt Ranch (14 mi s of Calif. Hwy 299 and Berry Summit on USFS Rd 1, on Pilot Ridge); Pilot Ridge, sw of Burnt Ranch, s of Berry Summit 1371 Comment
  RSA43894  Penstemon deustus subsp. deustus H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  UC1222785  Penstemon laetus var. sagittatus Joseph P. Tracy 1951-6-26 19588 Humboldt n side Board Camp Mountain extreme head of Redwood Creek, n side Board Camp Mountain (at extreme head of Redwood Creek) 1541 Comment
  RSA420427  Penstemon newberryi subsp. berryi Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  JEPS15454  Penstemon newberryi var. berryi Hilda W. Grinnell 1932-7-9 2 Humboldt McKay Camp South 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
  HSC55991  Penstemon procerus var. brachyanthus Walter Overton, Marvin Butler 1979-7-31 11417 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  RSA46686  Penstemon purpusii Doris K. Kildale 1937-7-18 15141 Humboldt Horse Mt. Comment
  UC577415  Penstemon rattanii Joseph P. Tracy 1930-8-24 9166 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC21103  Penstemon rattanii D. E. Anderson 1962-7-14 2268 Humboldt 0.25 mi. E of Arcata on Fickle Hill Rd. Comment
  NY130492  Penstemon rattanii V. Rattan 06 1879 58 Humboldt 792.5 Comment
  HSC1080  Pentagramma triangularis D. E. Anderson 1963-3-16 2389 Humboldt Scotia Bluffs Comment
  RSA0094699  Pentagramma triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt On E side of road, 1 mi. S of Garberville. Comment
  UC1197122  Perideridia howellii Joseph P. Tracy 1935-5-25 13854 Humboldt Fort Seward 106 Comment
  HSC56312  Perideridia kelloggii Overton, Butler 1979-8-2 12645 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1389979  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5084 Humboldt 2 mi w Bridgeville Comment
  HSC98799  Perideridia oregana Cara Witte 2007-7-11 511 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  UC906662  Perideridia oregana Joseph P. Tracy 1949-8-11 18477 Humboldt 2-6 mi s from Grouse Mountain; Kinsey Ridge 1280 Comment
  UC581691  Petasites frigidus var. palmatus Joseph P. Tracy 1933-3-26 10944 Humboldt Big Lagoon 3 Comment
  UCD134927  Petasites frigidus var. palmatus R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  HSC63487  Petrorhagia dubia M. A. Baker 1977-6-6 381 Humboldt Hoopa Indian Reservation Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  JEPS1444  Phacelia bolanderi Lincoln Constance 1934-5-26 687 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek region 45 Comment
  HSC70694  Phacelia corymbosa Gail Newton 1980-7-15 1559 Humboldt Near Sims Mtn. 1311 Comment
  JEPS1545  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC41588  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt Head of N Fork of Conley Creek 1463 Comment
  RSA201448  Phacelia egena Alice Eastwood, J. T. Howell 1937-6-23 4759 Humboldt Dinsmore s. Comment
  HSC57184  Phacelia mutabilis Griswold, Butler 1979-7-10 6383 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC562557  Phacelia mutabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8937 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS55962  Phacelia mutabilis John Thomas Howell 1937-7-31 13715 Humboldt Boise Creek Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  BLMAR532  Phacelia nemoralis subsp. nemoralis Jennifer Wheeler 2009-6-23 532 Humboldt King range, On Paradise Ridge road Comment
  HSC58024  Phacelia procera G. L. Clifton 1979-7-31 11831 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC258863  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta 60 Comment
  HSC40205  Phalaris aquatica Thomas W. Nelson, James Nelson 1976-6-22 2843 Humboldt Along Hwy. 36, ~ 4 mi. E of Bridgeville Comment
  RSA0057782  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  HSC58687  Phleum alpinum G. L. Clifton, Griswold 1979-8-2 12405 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC34058  Phleum alpinum J. P. Tracy 1901-5-30 1106 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC8515  Phleum pratense True Hoyle 1967-7-24 28967 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  HSC48396  Phlox adsurgens Brad Klipfel 1973-6-10 148 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC71667  Phlox adsurgens Gail Newton 1980-6-24 554 Humboldt Near Ladder Rock 1500 Comment
  HSC75515  Phlox adsurgens J. O. Sawyer, R. J. Cole 1977-7-3 3008 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC906757  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1212579  Phlox adsurgens Francia Chisaki and Helen Sharsmith 1959-8-22 4755 Humboldt Happy Camp, just over line from Trinity County Inner North Coast Ranges 914 Comment
  UC1198558  Phlox gracilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8938 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC81777  Phoenicaulis cheiranthoides Thomas W. Nelson, James Nelson 1980-6-10 5403 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  RSA683018  Phyllospadix scouleri R. Setzer 1972-7-29 7010 Humboldt Palmer Point; Patrick s Point State Park. Comment
  POM210091  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC140581  Physocarpus capitatus Thomas Nelson; Linda Barker 1977-6-3 3387 Humboldt On flood plain of Mad River at south end of Mad River Bridge 53 Comment
  HSC31639  Physocarpus capitatus Glenn McGourty 1974-6-1 83 Humboldt Comment
  UCSB2830  Physocarpus capitatus Phillips, Priscilla 1958-6-9 Humboldt Biship Pina Lodge, 2 mi. n. of Trinidad Comment
  HSC78982  Picea sitchensis L. P. Janeway 1984-12-5 1196 Humboldt N Spit of Humboldt Bay, BLM lands near fence Comment
  NY951520  Picea sitchensis D. H. Goldman 2004-10-30 2901 Humboldt West side of Eel River Drive, about 0.4 mile S of the intersection with Hookton Road and the entrance ramp to Rt. 101 21 Comment
  CAS-BOT-BC78290  Pinus attenuata Carl B. Wolf 1937-8-13 9240 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  HSC31517  Pinus contorta Steve Selva, Roger Jensen 1974-8-28 92 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  HSC95835  Pinus contorta var. contorta Will Ferrand 2002-4-27 36 Humboldt 300 ft W of intersection of Samoa Blvd. and Lupine Dr. 9 Comment
  POM199392  Pinus contorta var. contorta H. E. Parks 1931-05 s.n. Humboldt Samoa, Pine Barrens. Comment
  HSC54525  Pinus monticola Overton, Butler 1979-7-23 9459 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC78981  Pinus muricata Elmer I. Applegate 1931-3-28 6626 Humboldt Near and north of Trinidad Comment
  HSC71802  Pinus sabiniana M. A. Baker 1980-6-26 2380 Humboldt Near Sims Creek 610 Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC16264  Pisum sativum Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5607 Humboldt Blue Lakes Comment
  UC526818  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1222212  Plagiobothrys reticulatus Joseph P. Tracy 1951-6-24 19536 Humboldt Kneeland Prairie 762 Comment
  UC1239609  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-9 14884 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UCD120865  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  POM126350  Plagiobothrys reticulatus Joseph P. Tracy 1911-6-30 3275 Humboldt Near Hydesville 61 Comment
  UC55924 Image available Plagiobothrys reticulatus var. rossianorum J. P. Tracy 1903-5-22 1878 Humboldt Alder Point Flat, on Eel River, se Humboldt County Eel River, Alder Point Flat; Alder Point Flat on Eel River, Humboldt Co. 152 Comment
  HSC34459  Plantago erecta J. P. Smith, J. O. Sawyer 1975-5-11 8084 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  UC1196143  Plantago erecta Joseph P. Tracy 1919-4-27 5133 Humboldt opposite Eureka (Ocean Beach at Samoa); Humboldt Bay, Samoa, Ocean Beach Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC89612  Plantago lanceolata M. Roantree 1985-5-24 61 Humboldt E side of Trinidad Head Comment
  HSC71375  Plantago major J. P. Smith 1971-10-9 5022 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  RSA246748  Plantago maritima Robert F. Thorne, Percy C. Everett 1965-8-8 35276 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  SDSU1028  Plantago subnuda Harvey 1938-8-13 2274 Humboldt North of Arcata. Comment
  HSC53952  Platanthera dilatata Griswold, Butler 1979-7-11 7002 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC54704  Platanthera dilatata Overton, Butler 1979-7-26 10030 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC34285  Platanthera dilatata var. leucostachys Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC98718  Platanthera dilatata var. leucostachys Cara Witte 2008-7-1 791 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  UC1196422  Platanthera leucostachys Joseph P. Tracy 1937-7-25 15536 Humboldt head Little Hors-Linto Creek; Trinity Summit, head Little Hors-Linto Creek 1371 Comment
  RSA178584  Platanthera sparsiflora Joseph P. Tracy 1950-7-2 18964 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  CAS-BOT-BC91641  Platystemon californicus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  UC146076  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  CAS-BOT-BC91643  Platystemon californicus Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 10 Humboldt Across Route 299 from White's Bar picnic area. 0.25 mile up roadbank. Comment
  UC602532  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Range, Grouse Mountain Grouse Mountain; North Coast Range, Grouse Mountain 1524 Comment
  HSC90237  Plectritis congesta L. Watson, J. Meninga Mar 1991 16 Humboldt Near Manila, Mad River slough and dunes, SW edge of parking lot. Comment
  UC416757  Plectritis congesta Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UCR45351  Plectritis congesta subsp. brachystemon Barry Silver 1986-4-23 540 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC57304  Pleuropogon refractus G. L. Clifton 1979-7-31 11859 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC127319  Pleuropogon refractus Harley P. Chandler May, 1901 1107 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 15 Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  SEINET255064 Image available Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp Comment
  HSC10641  Poa bolanderi J. P. Tracy 1930-7-16 8902 Humboldt Near McKay Camp. 1677 Comment
  HSC40309  Poa bolanderi Thomas W. Nelson, Jane P. Nelson 1976-6-22 2846 Humboldt Along Rd. to Goat Hill. 1646 Comment
  UC1132658  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle Comment
  UC1145142  Poa douglasii Joseph P. Tracy 1917-5-30 4799 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  RSA183645  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 miles west of bridge over North Fork of Mad River, along Hw. 299. Alder bench below highway backslope Comment
  LA12558  Poa macrantha S. K. Harris; 1936-6-15 3383 Humboldt Trinidad Head Comment
  RSA92307  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, near ocean shore, south point of the Cape. 3 Comment
  CAS-BOT-BC255941  Poa pratensis Joseph Burtt Davy; Walter C. Blasdale 1899-6-16 5554 Humboldt Scotia Comment
  HSC10751  Poa pratensis R. H. Berg 1963-4-27 55 Humboldt Prairie Creek State Park, N of Arcata. Comment
  HSC10759  Poa pratensis D. W. C. 1956-6-20 17 Humboldt May Ranch, Brigdeville. Comment
  RSA44525  Poa pratensis Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  UCD91936  Poa pratensis A. Murphy 1951-4-19 s.n. Humboldt Tooby and Prior Ranch. Blocksburg. 457 Comment
  CAS-BOT-BC235982  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 Humboldt Klamath Mountains. Head of Devil's Hole 1828 Comment
  HSC73572  Poa secunda subsp. secunda Gail Newton 1980-7-14 1509 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC75473  Poa secunda subsp. secunda J. O. Sawyer 1980-7-18 3620 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA129470  Poa trivialis H. S. Yates 1936-6-16 5683 Humboldt Near Bayside 9 Comment
  HSC10809  Poa unilateralis R. Long 1964-5-7 Humboldt Samoa. Comment
  UCD92128  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay. 3 Comment
  UC153997  Pogogyne serpylloides Joseph P. Tracy 1908-6-7 2622 Humboldt at Butter Valley on Mad River 152 Comment
  HSC69751  Polycarpon tetraphyllum Thomas W. Nelson 1977-10-10 3756 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  HSC41294  Polygala cornuta Brad Klipfel 1974-7-27 494 Humboldt Horse Mtn. Comment
  HSC99087  Polygala cornuta var. cornuta Cara Witte 2008-7-25 927 Humboldt Horse Mountain Botanical Area. At intersection of 6N36B and Forest Service Road 6N36A. 1355 Comment
  RSA21671  Polygala cornuta var. cornuta Carl B. Wolf 1937-8-13 9224 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New Road towards Trinity summit. 1220 Comment
  HSC12591  Polygonum aviculare C. Kline 1970-11-9 64 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  POM126162  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt Trinity River at mouth of South Fork. 152 Comment
  HSC55014  Polygonum douglasii Overton, Butler 1979-7-31 11405 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 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
  HSC55160  Polygonum douglasii Gilbert Muth 1979-8-1 12122 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC535117  Polygonum douglasii subsp. spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  UC672943  Polygonum paronychia Joseph P. Tracy 1930-7-21 8890 Humboldt s point of cape (near ocean shore); Cape endocino 3 Comment
  UC72026  Polygonum persicaria Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC98076  Polygonum phytolaccifolium Cara Witte 2007-7-11 506 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC672980  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-25 12840 Humboldt Grouse Mountain; near springs 1524 Comment
  UC672952  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1933-7-25 12868 Humboldt Grouse Mountain 1524 Comment
  CDA2923  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  CDA2916  Polygonum sachalinense T. C. Fuller 1968-7-3 17443 Humboldt West side of the south-bound lanes of Highway 101 freeway, just north of the South Bay Depot Road, Fields Landing. 0 Comment
  CAS-BOT-BC421010  Polygonum spergulariiforme Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  HSC77901  Polypodium californicum L. P. Janeway, Paul Wilson 1984-5-7 764 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  CAS-BOT-BC76870  Polypodium glycyrrhiza Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET182509 Image available Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek Comment
  UC71485  Polypodium glycyrrhiza Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  CAS-BOT-BC72081  Polypodium scouleri Ira L. Wiggins 1930-7-11 4686 Humboldt near Samoa Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  POM252888  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  SEINET200575 Image available Polypogon interruptus J. P. Tracy 1938-8-28 16137 Humboldt Trinidad coastal bluffs 0 Comment
  UC1145082  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad 9 Comment
  UC39751  Polypogon interruptus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5520 Humboldt near Pepperwood; near Pepperwood Comment
  UC34074  Polypogon monspeliensis J. P. Tracy 1900-7-4 893 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  HSC70930  Polystichum munitum R. York 1980-5-18 559 Humboldt Near Black Mtn. 1006 Comment
  UC812661  Polystichum munitum George Neville Jones 1926-3-22 8671 Humboldt near Garberville Comment
  JEPS64534  Populus Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway (at Sylvandale); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC87081  Populus trichocarpa Anthony J. Desch, Bryon Cariss 1988-4-23 66 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  UC1225789  Populus trichocarpa Joseph P. Tracy 1948-4-11 17970 Humboldt 2 mi e Dyerville (Eel River); Eel River 48 Comment
  CAS-BOT-BC267145  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13588 Humboldt S Fork of Eel River, midway between Miranda and Garberville Comment
  CAS-BOT-BC453766  Potamogeton natans Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Near Harley place Comment
  RSA239755  Potamogeton natans Larry E. DeBuhr, Gary D. Wallace 1973-5-19 1117 Humboldt Prairie Creek Redwood State Park; at Gold Bluff Beach. Comment
  SEINET8475344 Image available Potamogeton pusillus subsp. tenuissimus S. K. Harris 1938-9-12 Humboldt Eel River, near Fernbridge Comment
  HSC18731  Potentilla anserina subsp. pacifica W. A. Heaton 1965-5-17 3 Humboldt 1/2 mi. N of Trinidad on trail near beach Comment
  UC1321457  Potentilla anserina subsp. pacifica Arne Henrik Rousi 12 Humboldt Comment
  UC492176  Potentilla drummondii Joseph P. Tracy 1932-7-10 10391 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC58182  Potentilla gracilis var. fastigiata G. L. Clifton, Griswold 1979-8-2 12270 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 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
  HSC34911  Prosartes hookeri Thomas W. Nelson, James Nelson 1975-5-24 1854 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC73152  Prosartes hookeri M. A. Baker 1980-5-18 1303 Humboldt Near Black Mtn. 1006 Comment
  HSC74736  Prunella vulgaris Gail Newton 1981-7-24 2305 Humboldt Near Chaparral Mtn. 1433 Comment
  UCR179386  Prunella vulgaris Katherine Esau 1934-5-6 s.n. Humboldt Fort Seward 152 Comment
  UCLA49217  Prunella vulgaris H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park; , Founders Tree Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  RSA254750  Prunus emarginata D. E. Anderson 1972-6-13 5572 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  HSC40671  Prunus virginiana var. demissa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2930 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  CAS-BOT-BC356655  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 121 Comment
  UC604671  Pseudognaphalium californicum Joseph P. Tracy 1938-6-20 15971 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC357601  Pseudognaphalium stramineum John Thomas Howell 1936-8-29 12886 Humboldt Eel River 16 miles n. of Garberville Comment
  HSC89524  Pseudognaphalium stramineum M. Roantree 1985-6-11 90 Humboldt SW side of Trinidad Head Comment
  UC165750  Pseudognaphalium stramineum Joseph P. Tracy 1909-9-19 3089 Humboldt sand dunes of ocean beach at Humboldt Bay Humboldt Bay Comment
  HSC57047  Pseudognaphalium thermale Overton, Butler 1979-7-24 9696 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  CAS-BOT-BC80111  Pseudotsuga menziesii Doris K. Kildale 1925-12-27 1463 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC80113  Pseudotsuga menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 60 Comment
  CAS-BOT-BC80122  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew Post Office 304 Comment
  UC484076  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 mi s Honeydew P.O. 304 Comment
  OBI36540  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-2 17338 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC1223051  Psilocarphus oregonus Joseph P. Tracy 1947-6-25 17720 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UC582502  Psilocarphus tenellus Joseph P. Tracy 1937-6-20 15339 Humboldt 10.0 mi up stream mouth of Bear River; Bear River 152 Comment
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  UC1223162  Psilocarphus tenellus Joseph P. Tracy 1948-7-26 18075 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  CAS-BOT-BC460606  Pyrola aphylla Doris K. Kildale 1925-6-27 893 Humboldt Bear Buttes 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
  HSC100475  Pyrola bracteata Carl C. Marshall Jun 1885 107 Humboldt Higher hills. Comment
  JEPS66561  Pyrola dentata Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  HSC98808  Pyrola dentata Cara Witte 2008-7-30 980 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N32E. Comment
  HSC54854  Pyrola picta G. L. Clifton 1979-7-25 10741 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1196363  Quercus X morehus Joseph P. Tracy 1916-6-19 4723 Humboldt North Fork of Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC99031  Quercus chrysolepis Cara Witte 2008-7-3 827 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  UC1196528  Quercus chrysolepis Joseph P. Tracy 1926-6-6 7570 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 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
  UC1222292  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt at head of Canoe Creek, summit of ridge ne of the lookout station, Grasshopper Peak, in Bull Creek State Park Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  HSC73544  Quercus garryana Gail Newton 1980-7-14 1469 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC8236  Quercus garryana D. E. Anderson 1961-9-3 1778 Humboldt Comment
  HSC8263  Quercus kelloggii Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  OBI36337  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt Ca. 13 mi W of jctn US 101 along Bull Creek Flats rd Comment
  OBI36667  Quercus kelloggii David J. Keil 1983-7-2 17342 Humboldt 2.8 mi S of SR 299 along titlow HIll rd, SW of Willow Creek Comment
  UC203998  Quercus kelloggii Joseph P. Tracy 1918-5-1 4895 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC54718  Quercus kelloggii P. E. Goddard 1901-7-12 64 Humboldt Hupa Comment
  UCR32153  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  UCD165090  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 24.5 mi. from Garberville along Alderpoint Rd. 174 Comment
  RSA20796  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  UCD47220  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi. N.E. of Hoopa along trail to Trinity Summit from end of forest Rd. 1463 Comment
  SBBG115525  Quercus sadleriana G. J. Muth 1972-8-15 1845 Humboldt near Big Hill Rd 1431 Comment
  CAS-BOT-BC104536  Quercus vacciniifolia Doris K. Kildale 1925-8-18 1220 Humboldt Trinity Summit 1828 Comment
  HSC44344  Quercus vacciniifolia Brad Klipfel 1975-6-17 692 Humboldt Horse Mtn. Comment
  HSC72811  Quercus vacciniifolia Gail Newton 1980-7-22 1686 Humboldt Near Devils Backbone 1554 Comment
  HSC76361  Quercus vacciniifolia Denis Kearns 1981-7-6 54 Humboldt Near Mosquito Lake 1122 Comment
  UC519303  Quercus vacciniifolia Joseph P. Tracy 1933-8-30 13009 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UCD47467  Quercus vacciniifolia Joseph P. Tracy 1935-7-28 14336 Humboldt Trinity Summit, Head of Brett Hole. 1828 Comment
  CAS-BOT-BC104664  Quercus wislizeni J. G. Lemmon 1904-1-1 s.n. Humboldt Eel River Comment
  HSC74708  Ranunculus aquatilis var. aquatilis Gail Newton 1981-8-6 2400 Humboldt Near Humbug Creek 1256 Comment
  UC118295  Ranunculus aquatilis var. hispidulus J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  UC1103006  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1926-7-5 7722 Humboldt pond near Redwood House (head of creek); Northern Coast Ranges, Grizzly Creek 609 Comment
  UC503026  Ranunculus californicus Joseph P. Tracy 1932-5-10 9927 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1103011  Ranunculus flammula J. P. Tracy 1901-5-12 1080 Humboldt immediate vicinity of Eureka 0 Comment
  UC668065  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka; vernal pool 45 Comment
  RSA246723  Ranunculus flammula var. ovalis Robert F. Thorne 1965-8-9 35322 Humboldt Clam Beach County Park: along highway. 3 Comment
  JEPS79959  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 Comment
  SBBG2267  Ranunculus occidentalis var. occidentalis H. and M. Dearing 1939-5-24 3415 c Humboldt Alton Comment
  HSC53862  Ranunculus orthorhynchus Griswold, Butler 1979-7-10 6338 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1116207  Ranunculus pusillus Joseph P. Tracy 1942-5-16 17356 Humboldt Garberville 304 Comment
  SD53241  Ranunculus repens Darley F. Howe 1962-5-22 3306 Humboldt Orick 29 Comment
  HSC18183  Ranunculus repens var. repens F. B. Plett 1963-5-15 48 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA670129  Ranunculus sardous J. M. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Road Comment
  HSC34802  Raphanus sativus Scott M. Kruse 1975-4-9 3 Humboldt Old Arcata Rd. and Chester Way, Arcata 3 Comment
  JEPS42008  Rhamnus californica subsp. californica W. L. Jepson 1902-7-10 2001 Humboldt South Fork, junction of Trinity River, Martin ranch Trinity River 304 Comment
  UC249596  Rhamnus californica subsp. californica Joseph P. Tracy 1921-10-2 5963 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  JEPS41950  Rhamnus purshiana W. L. Jepson 1902-6-24 1932 Humboldt Angel's Ranch to Korbel 365 Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  RSA6202  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 4205 Humboldt City of Eureka, 1 block N of Henderson St on S St cut over Redwoods. 30 Comment
  UC198576  Rhamnus purshiana Joseph P. Tracy 1917-9-2 4847 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  HSC7878  Rhododendron macrophyllum D. E. Anderson 1961-8-11 1732 Humboldt E of Humboldt State University campus 30 Comment
  HSC7879  Rhododendron macrophyllum G. T. Nordstrom 1966-5-4 25 Humboldt Kneeland- Maple Creek road, 1/8 mi. W of the jct. with Fickle Hill rd. Comment
  UC1197789  Rhododendron occidentale J. P. Tracy 1901-6-23 1165 Humboldt immediate vicinity of Eurek 0 Comment
  HSC35751  Rhododendron occidentale var. paludosum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1995 Humboldt French Camp, Bald Hills. Comment
  HSC103188  Ribes binominatum Jade Paget-Seekins 2010-7-6 41 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  HSC97159  Ribes binominatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 8 Humboldt 12.5 mi. S of Hwy. 299 on USFS Rd. NF1 1555 Comment
  UC667032  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  CAS-BOT-BC108906  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16226 Humboldt Mouth of Little River. 6 Comment
  JEPS49418  Ribes inerme var. klamathense Harley P. Chandler June, 1901 1320 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC492206  Ribes inerme var. klamathense Joseph P. Tracy 1927-5-15 8039 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC57642  Ribes lacustre G. L. Clifton, Griswold 1979-7-25 10806 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC75414  Ribes lacustre J. O. Sawyer, M. A. Ericksen 1980-7-18 3646 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC97603  Ribes lacustre Cara Witte 2007-5-31 162 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  UCR80295  Ribes laxiflorum H. E. Parks, S. T. Parks 1937-6-4 24004 Humboldt North Coast, along Prairie Creek at Valley Green Comment
  HSC31135  Ribes lobbii J. O. Sawyer 1970-6-24 2268 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC39684  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2737 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  RSA0021132  Ribes lobbii Lincoln Constance, R. C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake. Comment
  UC205482  Ribes marshallii Joseph P. Tracy 1919-9-18 5229 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC206036  Ribes menziesii Joseph P. Tracy 1948-2-22 17950 Humboldt Hydesville 91 Comment
  SBBG72058  Ribes menziesii H. E. Parks -Apr-1933 4402 Humboldt McNeils Crk, vicinity of Trinidad Comment
  BLMAR666  Ribes menziesii var. menziesii Jennifer Wheeler 2012-7-12 666 Humboldt King range, Strawberry rock 253 Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  UC183753  Ribes roezlii Joseph P. Tracy 1913-3-9 4012 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  UCD39983  Ribes roezlii Rodney Gale Myatt 1971-9-21 1188 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  CAS-BOT-BC198897  Ribes roezlii var. cruentum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UCR45437  Ribes roezlii var. cruentum Kenneth Clark 1980-6-14 691 Humboldt Above N Fork Dead Man's Gulch 229 Comment
  HSC20336  Ribes sanguineum E. W. Styskel 1963-3-3 2 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC71583  Ribes sanguineum Gail Newton 1980-6-16 188 Humboldt Near Onion Mtn. 1280 Comment
  HSC76265  Ribes sanguineum Teresa Prendusi 1981-7-24 511 Humboldt Near Whiteys Peak 1634 Comment
  HSC49912  Ribes sanguineum var. glutinosum Maralyn O'Meara 1973-2-19 189 Humboldt McKinleyville, Murray Rd. Comment
  HSC103185  Ribes viscosissimum Jade Paget-Seekins 2010-6-23 25 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC103209  Ribes viscosissimum Jade Paget-Seekins 2010-6-30 32 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
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Mar 8 2016
  HSC74207  Ribes viscosissimum M. A. Baker 1980-7-19 3026 Humboldt Near Bret Hole. 1814 Comment
  UC673061  Robinia pseudoacacia Joseph P. Tracy 1934-7-1 13277 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS1252  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  UC1239758  Romanzoffia californica Joseph P. Tracy 1946-5-19 17529 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC74370  Rorippa columbiae Henry M. Pollard 1956-10-9 s.n. Humboldt Near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans. Comment
  HSC44065  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1977-8-6 3701 Humboldt Above Alder Spring 1585 Comment
  RSA43862  Rorippa curvisiliqua H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC161585  Rorippa curvisiliqua Joseph P. Tracy 1909-6-13 2992 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  OBI5836  Rosa eglanteria Carl B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from Rohnerville on road to Fortuna 30 Comment
  CAS-BOT-BC146480  Rosa gymnocarpa Henry M. Pollard 1956-10-11 s.n. Humboldt Near Orleans on trail to Wilder Creek Comment
  CAS-BOT-BC146484  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt Trinity Summit, 2 miles southeast of Devil's Hole 1584 Comment
  CAS-BOT-BC146838  Rosa nutkana L. R. Abrams; R. Bacigalupi 1922-6-25 8275 Humboldt Big Lagoon south of Orick Comment
  RSA2870  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  JEPS47246  Rosa nutkana var. nutkana Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC183612  Rosa nutkana var. nutkana Joseph P. Tracy 1912-7 3753 &3985 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC146882  Rosa rubiginosa Alice Eastwood 1921-7-21 10650 Humboldt Carlotta Comment
  CAS-BOT-BC146883  Rosa rubiginosa Doris K. Kildale 1927-6-26 3602 Humboldt Big Lagoon Comment
  UC492168  Rubus leucodermis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8905 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC156720  Rubus spectabilis W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook - Eel River Comment
  CAS-BOT-BC156727  Rubus spectabilis David D. Keck; J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River, at roadside Comment
  HSC19685  Rubus spectabilis Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  POM271106  Rubus spectabilis Lyman D. Benson 1929-7-15 1816 Humboldt Clam Beach, Trinidad. Comment
  SEINET4093693  Rubus spectabilis O. M. Clark 1932-1 5325 Humboldt South Eureka. Comment
  UC1199046  Rubus spectabilis Joseph P. Tracy 1931-4-12 9333 Humboldt near Blue Lake (Mad River (at Essex)); Northern Coast Region, Mad River 15 Comment
  HSC56343  Rubus ursinus Griswold, Butler 1979-7-10 6268 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UCD17840  Rubus ursinus H. Olmo 8-10 May 1962 62- 38 A Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  POM271074  Rubus vitifolius Lyman D. Benson 1929-7-15 1814 Humboldt Clam Beach. Trinidad. Comment
  CAS-BOT-BC421935  Rumex acetosella Doris K. Kildale 1927-6-25 3576 Humboldt Fearriens Ranch between Thorn & Shelter Cove. Comment
  HSC17564  Rumex acetosella S. R. Johnson 1965-4-16 45 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC17582  Rumex acetosella F. Morrell 1949-5-14 23 Humboldt Hoopa Comment
  HSC99552  Rumex obtusifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 217 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC95362  Rumex salicifolius var. transitorius Andrea Pickart 2002-8-8 200 Humboldt Arcata bottoms, Lanphere Rd. near end 20 Comment
  CAS-BOT-BC434097  Rumex transitorius Carl B. Wolf 1927-8-28 1182 Humboldt Salt Marsh, Eureka Bay, on the road to Arcata Comment
  SEINET6933889  Rupertia physodes Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Dald Hills, southeast of Orick. Comment
  UC668107  Sagina apetala Joseph P. Tracy 1932-5-1 9839 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  CHSC31321  Salicornia virginica Mark Stopher 1980-6-4 85 Humboldt Along tidal creek, near Elk River bridge Hwy 101. 1 Comment
  UC490588  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC1196561  Salix exigua J. P. Tracy 1900-9-9 943 Humboldt Yager Creek near Hydesville (along a slough) 91 Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107701  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107709  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107728  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  HSC19954  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Trinidad, Little River Lagoon 0 Comment
  JEPS38444  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Strawberry Creek Northern Coast Ranges, Dows Prairie Sand Dunes (at mouth) 6 Comment
  POM219535  Salix hookeriana H. E. Parks 1931-5-12 954 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  RSA171962  Salix hookeriana Robert F. Thorne 1957-9-2 18987 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SD938  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon 0 Comment
  UC1196672  Salix hookeriana Joseph P. Tracy 1935-3-3 13717 Humboldt mouth of Mad R. 6 Comment
  UC1225776  Salix hookeriana Joseph P. Tracy 1948-4-4 17959 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC146206  Salix hookeriana J. P. Tracy 1904-4 2036 /2137 Humboldt Immediate vicinity of Eureka 0 Comment
  UC469110  Salix hookeriana Joseph P. Tracy 1931-8-23 9618 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470440  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC492343  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC512001  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512084  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1222 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC519326  Salix hookeriana Joseph P. Tracy 1933-10-8 13089 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges 91 Comment
  POM219559  Salix hookeriana var. tomentosa H. E. Parks 1931-3-26 905 Humboldt Alton on Van Duzen River. 15 Comment
  UC1173614  Salix laevigata Joseph P. Tracy 1935-6-22 13960 Humboldt mouth of Larrabee Creek (on Eel River); Eel River 45 Comment
  UC481812  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 271 Humboldt between Miranda and Meyers (Sylvandale); S. Fork Eel R., Sylvandale Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC1196577  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-3-31 995 Humboldt immediate vicinity Eureka 0 Comment
  UC1196580  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-7 12153 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC481240  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1931-8-15 1078 Humboldt Van Duzen R. Blue Slide; , Blue Slide 100 Comment
  UC481283  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-14 959 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC492482  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-5-12 1150 Humboldt swamp near bridge at mouth of Maple Creek (Big Lagoon); Big Lagoon Comment
  CAS-BOT-BC128190  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC128197  Salix lasiandra var. lasiandra Doris K. Kildale 1927-7-23 3798 Humboldt Hoaglin Lake, near Lassicks Peaks Comment
  CAS-BOT-BC107579  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-12 1233 Humboldt Floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC107612  Salix lasiolepis Harold E. Parks 1931-8-25 1059 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC107645  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC20011  Salix lasiolepis J. P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Hwy. 762 Comment
  HSC98860  Salix lasiolepis Cara Witte 2008-8-5 996 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 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
  JEPS12966  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  POM219356  Salix lasiolepis Joseph P. Tracy 1931-3-31 9327 Humboldt Redwood Creek. At Berry's. 274 Comment
  RSA34303  Salix lasiolepis Doris K. Kildale 1928-3-27 4359 Humboldt [Unspecified] Comment
  UC1196619  Salix lasiolepis Joseph P. Tracy 1933-7-20 12807 Humboldt Mad River, near Blue Lake 15 Comment
  UC469428  Salix lasiolepis Joseph P. Tracy 1931-9-7 9629 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469433  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481314  Salix lasiolepis Harold E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490551  Salix lasiolepis Joseph P. Tracy 1932-3-6 9776 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC506342  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 228 Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UCD111587  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01321 Humboldt Redwood Creek, at Berry's, on Trinity Highway. 274 Comment
  CAS-BOT-BC107290  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107297  Salix lasiolepis var. bigelovii Harold E. Parks 1931-5-14 0963 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC107403  Salix lasiolepis var. lasiolepis Doris K. Kildale 1928-4-29 5958 Humboldt Redwood Creek at Berry's 289 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
  HSC20059  Salix melanopsis H. E. Parks 1931-5-14 961 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  HSC912  Salix melanopsis Doris K. Kildale 1926-8-15 2516 Humboldt Upper Willow Creek Flat 152 Comment
  LA208932  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  SD920  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville, river bed 299 Comment
  UC1173599  Salix melanopsis Joseph P. Tracy 1937-7-24 15507 Humboldt Mad R. at mouth of Lindsey Creek Lindsey Creek; Mad R. 15 Comment
  UC1196637  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC162649  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt near its mouth Willow Creek; Northern Coast Ranges, Willow Creek - tributary of Trinity R 182 Comment
  UC481293  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt between Alton and Carlotta (Van Duzen R.); Van Duzen R. 15 Comment
  UC512009  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UCR143008  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 0967 Humboldt North Coast, mouth of Willow Creek at Trinity River 150 Comment
  RSA0038342  Salix melanopsis var. tenerrima Harold E. Parks, Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SD977  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River, between Alton and Carlotta, in river gravel. 14 Comment
  CAS-BOT-BC129135  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1228 Humboldt 1 mile north of Samoa, approximately sea level. Comment
  CAS-BOT-BC129142  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CAS-BOT-BC129172  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC38188  Salix scouleriana Thomas W. Nelson, James Nelson 1976-3-5 3294 Humboldt Beside Hwy. 101 near summit of Table Bluff Comment
  UC1173625  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC1196699  Salix scouleriana Joseph P. Tracy 1919-9-14 5204 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC481354  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  HSC90385  Salix sitchensis Jean Hanson 1980-4-12 50 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  RSA178536  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt On foothills of the Cap Ridge. 0.5 mile S of town. Along coast rd 1 mile inland from Cape Mendocino. Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 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
  JEPS12741  Sambucus mexicana Lincoln Constance 1934-6-6 829 Humboldt fire trail <from> Dyerville to Horse Prairie (and return); South Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC235124  Sambucus racemosa var. racemosa D. E. Breedlove 1962-6-8 3059 Humboldt U.S. Highway 101, 5 miles south of Orick 30 Comment
  UC1541511  Sambucus racemosa var. racemosa W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  HSC21611  Sanicula arctopoides R. D. Modafferi 1965-3-13 16 Humboldt 1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC86898  Sanicula arctopoides Anthony J. Desch, Bryon Cariss 1988-4-21 61 Humboldt 0.4 mi. N of W end of Samoa Bridge Comment
  HSC21619  Sanicula bipinnatifida Eldrid H. Spinas 1948-5-22 46 Humboldt Horse Mountain Comment
  JEPS220  Sanicula bipinnatifida Lincoln Constance 1934-6-3 806 Humboldt road from High Rock to Horse Prairie ((<High Rock> on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  HSC45395  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1977-7-4 3594 Humboldt Beside pond above Alder Springs 1585 Comment
  HSC65834  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  UC183564  Sanicula tuberosa Joseph P. Tracy 1912-7-31 3943 Humboldt Northern Coast Ranges, Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  RSA445278  Satureja douglasii Thekla Mohr 1918-07 3337 Humboldt Eel River. Comment
  UC666815  Saxifraga aprica Joseph P. Tracy 1935-7-24 14188 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  POM141795  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast. 122 Comment
  HSC21646  Scandix pecten-veneris Richard Steele 1962-4-9 15 Humboldt 1/2 mi. W of Humboldt State campus 15 Comment
  HSC37549  Schoenoplectus americanus J. D. Ackerman 1975-6-10 465 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC7488  Schoenoplectus californicus P. W. Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC183949  Scirpus maritimus Joseph P. Tracy 1909-9-19 3099 Humboldt Samoa Northern Coast Region, region about Humboldt Bay, Samoa 0 Comment
  UC50825  Scirpus pungens J. P. Tracy 1902-8-10 1765 Humboldt immediate vicinity Eureka 0 Comment
  UC668016  Scirpus pungens Joseph P. Tracy 1930-10-19 9227 Humboldt along Eel River Alton to Fortuna (on gravel bar); Eel River 15 Comment
  SEINET5161340  Scoliopus bigelovii Unknown 1998-3-10 s.n. Humboldt southern Humbolt County Comment
  HSC15635  Scoliopus bigelovii D. E. Anderson 1962-3-17 1938 Humboldt Comment
  HSC12558  Scrophularia californica D. La Conte 1970-7-7 20 Humboldt Comment
  CDA41913  Scrophularia californica T. C. Fuller 1958-6-17 595 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC21126  Scrophularia californica W. F. Nickel 1965-5-14 Humboldt N Arcata near Park Plaza Apts. Comment
  UC32586  Scutellaria antirrhinoides Chesnut and Drew 1888-7-9 Humboldt Jannigan's Comment
  HSC38769  Secale cereale A. M. Montalvo, J. D. Ackerman 1975-6-10 446 Humboldt 1 mi. N of Samoa Blvd. and turnoff to Samoa Bridge, S of Manila. Along Humboldt Bay. Comment
  HSC79269  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Bennett Peak Comment
  HSC74192  Sedum laxum subsp. heckneri M. A. Baker 1980-7-23 3134 Humboldt Near Orleans Mtn. 1859 Comment
  HSC57959  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11659 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58050  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-1 11911 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC72663  Sedum radiatum M. A. Baker 1980-6-26 2469 Humboldt Near Sims Creek 610 Comment
  UC1198841  Sedum radiatum Joseph P. Tracy 1927-5-15 8054 Humboldt Supply Creek near Hoopa Valley; Northern Coast Ranges, Supply Creek, nr Hoopa Valley 304 Comment
  JEPS48059  Sedum spathulifolium Lincoln Constance 1934-6-1 767 Humboldt Bull Cr. Road between Dyerville Bridge and Bull Cr. flat grove (mouth Bull Cr.) (Mouth Bull Cr, South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  CDA42470  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway. Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  HSC45074  Selaginella wallacei R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  UC906717  Selaginella wallacei Harold E. Parks and Joseph P. Tracy 1942-5-15 11546 Humboldt half way between Miranda and Garberville 152 Comment
  HSC95089  Senecio elegans Andrea Pickart 2002-6-4 116 Humboldt N of 'Power pole' site Comment
  HSC57419  Senecio integerrimus G. L. Clifton, Griswold 1979-7-26 10182 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  CAS-BOT-BC364016  Senecio integerrimus var. major Joseph P. Tracy 1928-5-6 8429 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET11803188  Senecio integerrimus var. major J. P. Tracy 1946-1 17537 Humboldt Kneeland Prairie 762 Comment
  HSC100446  Senecio mendocinensis Carl C. Marshall Jul 1887 433 Humboldt Spruce Grove. Comment
  CDA7642  Senecio mikanioides Gordon Leppig 2000-2-15 1284 Humboldt School Road 1/2 mile west of Central Avenue, McKinleyville. Comment
  UC205168  Senecio minimus Joseph P. Tracy 1919-8-31 5185 Humboldt Eureka 0 Comment
  UC581699  Senecio sylvaticus Joseph P. Tracy 1934-7-3 13305 Humboldt near Freshwater Corners (around Humboldt Bay); northern Coast Region, around Humboldt Bay 15 Comment
  CHSC61945  Sequoia sempervirens J. R. Biddison 1993-4-6 10 Humboldt Prairie Creek Redwoods State Park, Fern Canyon picnic area, 10 mi n of Orick, off hwy 101. 15 Comment
  JEPS48279  Sequoia sempervirens Lincoln Constance 1934-6-4 822 Humboldt road to Dyerville (Look Prairie and Bull Cr.); Bull Creek region, South Fork Eel River Comment
  SDSU2018  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D St, Arcata. 55 Comment
  SEINET3876370 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Demonstration Forest, Simpson Timber Company.; 0 Comment
  SEINET5716898 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1 s.n. Humboldt Along State Route 299 from Arcata to Redding; Demonstration Forest, Simpson Timber Company.; Arcata Comment
  UC202712  Sericocarpus oregonensis subsp. oregonensis Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pon Comment
  HSC98000  Sericocarpus oregonensis var. oregonensis Cara Witte 2007-8-1 610 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of White Oak Opening. 1256 Comment
  UCD92873  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity River Valley, at Willow Creek. Comment
  CAS-BOT-BC205567  Sidalcea malachroides Doris K. Kildale 1926-5-16 1837 Humboldt Horse Mountain cut-off 792 Comment
  UC1121977  Sidalcea malachroides R. Stahelin 1933-5-15 19520 Humboldt T. P. L. Co. Eureka Quad. (Freshwater) Comment
  HSC100702  Sidalcea malachroides Carl C. Marshall Jun 1886 29 Humboldt Mad River region. Comment
  RSA43847  Sidalcea malviflora subsp. nana H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  HSC103244  Sidalcea malviflora subsp. patula John McRae, Carrie Schreiber 2010-6-18 Humboldt USDA Forest Service, Humboldt Nursery, Baird Rd., McKinleyville 15 Comment
  UC108863  Sidalcea malviflora subsp. patula J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  UC668134  Sidalcea malviflora subsp. patula Joseph P. Tracy 1936-6-9 14877 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC104350  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 19 Humboldt Kneeland 854 Comment
  POM161047  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-8-29 5394 Humboldt Dow s Prairie, around Humboldt Bay Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  HSC73819  Silene Gail Newton 1980-6-7 117 Humboldt Near Brush Mtn. 1128 Comment
  UC465675  Silene californica P. E. Goddard 1907-5-29 f 101 Humboldt Van Duzen Comment
  RSA135349  Silene campanulata subsp. glandulosa Volney Rattan 1883 Humboldt Hoopa Valley. Comment
  UC162884  Silene campanulata subsp. glandulosa Harley P. Chandler June, 1901 1471 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC4183  Silene gallica H. E. Parks, S. T. Parks Jun 1936 5634 Humboldt Spruce Cove, Trinidad Comment
  UC630502  Silene gallica H. E. and S. T. Parks June, 1936 5634 Humboldt Spruce Cove , Spruce Cove (Trinidad) Comment
  HSC57998  Silene grayi G. L. Clifton, Griswold 1979-7-31 11767 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SEINET3823279 Image available Silene hookeri Joseph P. Tracy 1913-6-20 4234 Humboldt Lower foothills of Buck Mountain 762 Comment
  HSC4169  Silene laciniata subsp. californica C. B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  RSA21205  Silene scouleri var. scouleri C. B. Wolf 1937-8-10 9094 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC184692  Sisymbrium altissimum Joseph P. Tracy 1912-8-3 3975 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  CHSC19509  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  RSA18062  Sisyrinchium californicum Carl B. Wolf 1927-8-22 789 Humboldt Big Lagoon Comment
  RSA699282  Sisyrinchium californicum J. R. Bruff 1930-08 s.n. Humboldt North of Trinidad Comment
  JEPS62109  Smilacina racemosa Lincoln Constance 1934-6-2 793 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek Region Comment
  JEPS62156  Smilacina stellata W. L. Jepson 1902-7-24 2115 b Humboldt Trinity Summit Comment
  SBBG54057  Solanum americanum R. S. Woglum 1938-8-29 2021 Humboldt Samoa Comment
  RSA47109  Solanum americanum Doris K. Kildale 1926-3-22 1601 Humboldt Helena Creek. Comment
  UC154016  Solanum physalifolium var. nitidibaccatum J. P. Tracy 1909-8-10 3074 Humboldt immediate vicinity of Eureka 0 Comment
  UC154277  Solanum umbelliferum Mrs. M. H. Manning 1901-6-7 88 Humboldt near Hupa Comment
  CAS-BOT-BC385867  Solidago canadensis Mrytle Paulson 1918-4-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC365431  Solidago elongata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC365439  Solidago elongata Doris K. Kildale 1926-6-18 2408 Humboldt Gold Bluffs Comment
  HSC6183  Solidago elongata William J. Ferlatte, B. D. Rogers 1966-8-15 3131 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  HSC76050  Solidago elongata Overton, Butler 1979-8-2 12539 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1199323  Solidago elongata Joseph P. Tracy 1940-9-26 16735 Humboldt near Still Ranch (2 mi s of Fields Landing) 9 Comment
  CAS-BOT-BC365666  Solidago spathulata Alice Eastwood 1923-8-14 12322 Humboldt Samoa Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  CAS-BOT-BC364969  Solidago velutina subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt On bank of Trinity River, Hoopa Valley Comment
  CHSC31290  Sonchus asper Mark Stopher 1980-6-4 96 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UCD136156  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA430519  Sonchus oleraceus Lyman Benson 1929-7-12 1796 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC1198766  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt on trail between Red Peak and Signal Peak; Lasseck's Peaks 1676 Comment
  HSC76207  Sorbus scopulina Overton, Butler 1979-8-2 12529 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA85195  Sparganium angustifolium subsp. emersum F. W. Peirson 1923-7-11 3642 Humboldt 20 miles north of Eureka. Comment
  RSA54125  Sparganium angustifolium subsp. emersum Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  CDA776  Sparganium emersum subsp. emersum M. K. Bellue 1932-9-28 Humboldt Arcata. Swale, edge of marsh. 0 Comment
  UC672884  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  CDA26250  Spartina densiflora G. D. Barbe, Dick Drewery 1988-7-18 4295 Humboldt Between Highway 255 and tide zone, Humboldt Bay, north of Samoa. 0 Comment
  RSA10096  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka, Marsh at R.R. station Comment
  RSA244949  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  CAS-BOT-BC236608  Spartina foliosa W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  CAS-BOT-BC389920  Spergula arvensis Doris K. Kildale 1925-12-6 1820 Humboldt Orick, near mouth of Redwood Creek Comment
  CDA18204  Spergularia macrotheca var. macrotheca G. D. Barbe, T. C. Fuller 1974-6-17 1830 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC56168  Spergularia rubra G. L. Clifton, Griswold 1979-8-1 12059 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS45013  Spiraea douglasii W. L. Jepson 1902-6-24 1924 Humboldt Eureka to Arcata Comment
  HSC36653  Spiranthes romanzoffiana J. D. Ackerman 1975-8-2 618 Humboldt Hwy. 101 between Eureka and Arcata, along Humboldt Bay across from Murray Field. Comment
  JEPS64512  Spiranthes romanzoffiana W. L. Jepson 1921-8-11 9412 Humboldt Big Lagoon Comment
  UC1196406  Spiranthes romanzoffiana Joseph P. Tracy 1944-7-3 17487 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC275578  Spiranthes romanzoffiana Joseph P. Tracy with H. E. Parks 1924-8-3 6767 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC100151  Spirodela polyrhiza M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds Comment
  UC154007  Stachys ajugoides var. rigida Joseph P. Tracy 1908-6 2814 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCLA70858  Stachys ajugoides var. rigida Joseph Andorfer Ewan 1937-7-29 10773 Humboldt Richardson Grove South Fork Eel River Comment
  UCLA70874  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-9 15874 Humboldt 2 mi s Blocksburg 304 Comment
  JEPS120565  Stachys mexicana B. Castro and L. P. Janeway 2004-9-11 1475 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Comment
  CAS-BOT-BC175347  Stellaria borealis subsp. sitchana Joseph P. Tracy 1935-5-24 13817 Humboldt Eureka 91 Comment
  SEINET200613  Stellaria borealis subsp. sitchana Joseph P. Tracy 27 Jun - 30 Jul 1908 2884 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC57674  Stellaria crispa G. L. Clifton, Griswold 1979-7-25 10867 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC302995  Stellaria crispa Joseph P. Tracy 1926-6-12 7586 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UCD99372  Stellaria media Linda M. Barker 1976-4-30 1396 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  BLMAR188  Stellaria nitens Donald Hazlett 1994-6-7 188 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC76433  Stenanthium occidentale Denis Kearns 1981-7-23 434 Humboldt Near Whiteys Peak. 1524 Comment
  HSC58570  Stipa occidentalis var. occidentalis G. L. Clifton, Griswold 1979-7-26 10297 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  RSA430015  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-4 3587 Humboldt Along W side of road north of Alder Spring, head of N Fork of Conley Creek. 1494 Comment
  UC1541461  Streptanthus tortuosus var. orbiculatus W. K. Parks July, 1933 Humboldt Buck Mountain Comment
  JEPS54017  Streptanthus tortuosus var. suffrutescens Chesnut and Drew 1888-1 Humboldt Comment
  HSC96249  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UC303040  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-5-22 7508 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  HSC99624  Symphoricarpos albus var. laevigatus Thomas W. Nelson, James Nelson 1975-9-3 2196 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  CAS-BOT-BC269571  Symphoricarpos albus var. laevigatus Doris K. Kildale 1925-8-21 1310 Humboldt Yager Creek - near head of bald hills 914 Comment
  HSC58035  Symphoricarpos mollis G. L. Clifton 1979-7-31 11870 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA417726  Symphyotrichum foliaceum var. foliaceum E. S. Spalding 1924-7-11 s.n. Humboldt Between Trinidad and Arcata Comment
  CDA5591  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  SEINET11071783 Image available Symphytum asperum Johnnie L. Gentry Jr., Earl Jensen 1968-1 2120 Humboldt Approx. 2 miles east of Hwy. jct. US 101 & Tompkins Hill Rd., on Tompkins Hill Road, south of Eureka 30 Comment
  HSC21155  Synthyris reniformis D. E. Anderson 1962-2-10 1917 Humboldt 0.5 mi. E of Big Lagoon Elementary School along abandoned stretch of Hwy. 101 Comment
  HSC49169  Synthyris reniformis J. O. Sawyer 1977-4-23 2836 Humboldt Along Big Hill Rd., E of Hoopa Comment
  JEPS9922  Synthyris reniformis Charlotte Wilder 1922-3-2 Humboldt roadbanks near Beckwith's Mill; North Coast, Carlotta Comment
  RSA279358  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Hwy. 610 Comment
  UC1199274  Tanacetum balsamita Joseph P. Tracy 1936-6-21 14990 Humboldt Iaqua, near abandoned ranch site Iaqua 609 Comment
  HSC6243  Tanacetum bipinnatum H. E. Parks Sep 1941 24216 Humboldt Little River Comment
  HSC90426  Tanacetum bipinnatum Jean Hanson 1980-6-22 93 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka. W end of island; ca. 100 ft. inland from shore Comment
  RSA47122  Tanacetum camphoratum Doris K. Kildale 1925-7-2 912 Humboldt Table Bluff beach. Comment
  RSA89773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC85216  Taxus brevifolia Doris K. Kildale 1926-9-9 2685 Humboldt Little Van Duzen River on Bridgeville - Red Bluff Road 640 Comment
  HSC31760  Taxus brevifolia Timothy B. Devine 1974-5-4 317 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  POM299136  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon 762 Comment
  UC13714  Taxus brevifolia Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC463017  Taxus brevifolia E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  UC1239774  Thelypteris nevadensis Joseph P. Tracy 1935-7-22 14124 Humboldt near Forks of Tish Tang-a Tang Creek Trinity Summit 1219 Comment
  HSC15097  Thermopsis macrophylla D. E. Anderson 1965-5-15 3692 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  JEPS54039  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-25 12885 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  RSA47094  Thuja plicata Doris K. Kildale 1926-8-28 2566 Humboldt Morrison gulch - Bear River ridge 412 Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC436903  Tiarella trifoliata var. unifoliata L. R. Abrams 1916-7-11 6014 Humboldt Mouth of Grizzley Creek on Van Duzen River Comment
  HSC70508  Tiarella trifoliata var. unifoliata Gail Newton 1980-7-20 1608 Humboldt Near Bell Swamps 9 Comment
  UC154149  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa; near Hupa Comment
  RSA151820  Tiarella trifoliata var. unifoliata H. K. Sharsmith, Francia Chisaki 1959-8-22 4753 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  UC64644  Tiarella trifoliata var. unifoliata H. M. Hall 1899-9 Humboldt Redwood forests along Eel River; along Eel River Comment
  UC154107  Tolmiea diplomenziesii Joseph P. Tracy 1908-6 2876 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1224693  Tolmiea diplomenziesii D. E. Anderson and B. D. Rogers 1964-5-1 1564 Humboldt n of Humboldt State College campus (Jolly Giant creek) Comment
  UC147861  Tonella tenella Joseph P. Tracy 1908-6 2736 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC103857  Torilis arvensis G. D. Barbe, T. C. Fuller 1974-6-17 1829 Humboldt Thorne Road, 4 mi. W of Redway, enroute to Shelter Cove Comment
  HSC45466  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along Hwy. 36 1 mi. E of Grizzly Creek Comment
  JEPS63934  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 a Humboldt S. Fork Trinity R., Martin's Ranch Comment
  RSA167316  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  UC549767 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Alder Point, from Alder Point to Dyke Ranch Northern Coast Ranges, Alder Point; Alder Pt., Humboldt Co. 304 Comment
  RSA0001653  Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Southeastern Humboldt county. Alder Point on Eal River. 305 Comment
  CAS-BOT-BC517423  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1925-8-16 1185 Humboldt Trinity Summit 1917 Comment
  HSC17941  Trientalis latifolia John A. Dubois 1962-5-12 10 Humboldt 20 mi. E of Arcata Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  UC154025  Trientalis latifolia J. P. Tracy 1900-5-22 798 Humboldt immediate vicinity of Eureka 0 Comment
  UC495667  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-17 10094 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC162801  Trifolium cyathiferum Joseph P. Tracy 1903-5-23 1902 Humboldt along Eel River (Alder Point); Northern Coast Ranges 91 Comment
  SEINET6934955  Trifolium depauperatum var. amplectens Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1223479  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1948-5-31 17985 Humboldt 1/2 mi ne Garberville (bench) Comment
  UC1223468  Trifolium dubium Joseph P. Tracy 1948-5-31 18024 Humboldt Blocksburg Comment
  UC179921  Trifolium dubium Joseph P. Tracy 1914-7-4 4522 Humboldt between Korbel and Angels Ranch roadside; Northern Coast Ranges Comment
  UC1602084  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-8 8728 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC495653  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 C Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC79552  Trifolium fucatum Kenneth Clark 1980-4-18 573 Humboldt 350 yards SE of Dead Man's Gulch (Point No Pass) 8 Comment
  UC303193  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UCD109049  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. 1 mile E of Cape Mendocino. 152 Comment
  UC495642  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt betw Miranda and Redway (South Fork of Eel River); North Coast Ranges 91 Comment
  UC33425  Trifolium longipes var. elmeri Chesnut and Drew 1888-8-1 Humboldt S. Fork of Trinity Comment
  UC1223333  Trifolium longipes var. oreganum Joseph P. Tracy 1950-7-1 18945 Humboldt near Clear Lake (where the Friday Ridge comes ot the top of Grouse Mtn Ridge); Grouse Mtn summit 1219 Comment
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Apr 3 2008
  HSC71451  Trifolium microcephalum J. P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCSC000413  Trifolium microcephalum H. S. Yates 1936-6-18 5734 Humboldt 2 miles N. of Big Lagoon - Rocky Pt. 30 Comment
  POM214881  Trifolium microdon Joseph P. Tracy 1927-6-5 8102 Humboldt Valley of S Yager Creek Comment
  UC1197506  Trifolium microdon Joseph P. Tracy 1917-5-30 4800 Humboldt Little River Beach Northern Coast Region 6 Comment
  UC594252  Trifolium microdon S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3448 Humboldt nw slopes Buck Mtn Comment
  RSA168849  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt Near Blue Lake, along Mad River Comment
  SEINET12170512  Trifolium pratense C. S. Kaut 2000-1 1 Humboldt Trinidad Comment
  UCSB30597  Trifolium pratense Edwards, David 1974-7-13 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  HSC45113  Trifolium repens R. Sutherland 1978-5-17 1 .17578 Humboldt 305 Comment
  HSC45127  Trifolium willdenovii R. Sutherland 1978-5-19 9 .19578 Humboldt 131 Comment
  UC1197511  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10092 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197522  Trifolium willdenovii Joseph P. Tracy 1914-7-5 4557 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  UC1197535  Trifolium willdenovii J. P. Tracy 1901-4-24 1038 Humboldt Eureka vicinity 0 Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1223518  Trifolium wormskioldii Joseph P. Tracy 1938-7-11 16047 Humboldt Samoa Sand Dunes Comment
  UC1223524  Trifolium wormskioldii Joseph P. Tracy 1936-5-29 14828 Humboldt 4 mi e Orick; Grans Prairie 548 Comment
  HSC12220  Triglochin maritima Gary J. Stebbins 1970-5-10 78 Humboldt Along Hwy. to Samoa just off the Mad River Slough bridge 2 Comment
  HSC96468  Triglochin maritima Gordon Leppig 1997-6-19 465 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM188101  Triglochin maritima Marcus E. Jones 1931-7-16 29221 Humboldt Arcata. Comment
  SEINET3151087  Triglochin maritima N. Dennis 1965-6-8 101 Humboldt along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  UC275566  Triglochin maritima Joseph P. Tracy 1924-7-13 6718 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC1409179  Triglochin maritima Robert F. Thorne and P. Everett 1965-8-7 35214 Humboldt Samoa Penisula 0 Comment
  CAS-BOT-BC520052  Trillium albidum R. F. Freeman; J. D. Freeman 1967-5-7 581 Humboldt Humboldt County Comment
  CAS-BOT-BC520053  Trillium albidum Lester Rowntree 1938-5-23 s.n. Humboldt Carlotta Comment
  CSUSB390  Trillium ovatum Keith Thompson 1970-12-27 Humboldt Arcata, California. 45 Comment
  JEPS47275  Trillium ovatum Willis G. Corbitt 1930-5-11 Humboldt Scotia Comment
  POM109203  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1197826  Trillium ovatum Joseph P. Tracy 1914-6-14 4509 Humboldt near Hydesville Hydesville; Northern Coast Region Comment
  UC1541275  Trillium ovatum W. K. Parks July 1933 Humboldt S. Fork Mountain Comment
  HSC15692  Trillium ovatum W. D. Stevens 1964-3-21 1 Humboldt 1.0 mi. E of Hwy. 299 on Lindsay Rd. Comment
  HSC34642  Trillium ovatum John Palmer 1975-4-9 296 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  CAS-BOT-BC521313  Trillium rivale Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1524 Comment
  JEPS884  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1198038  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  CDA20454  Triphysaria eriantha subsp. eriantha P. Haggard 2003-5-11 PDR P 070982 Humboldt Northwestern California; around Humboldt Bay. 0 Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC902259  Triphysaria pusilla Joseph P. Tracy 1948-5-15 17974 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC38336  Triphysaria versicolor subsp. faucibarbata Peter Sorensen 1976-7-11 Humboldt King Salmon Comment
  UC902246  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17468 Humboldt Eureka 6 Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  HSC97626  Triteleia laxa Cara Witte 2007-6-19 300 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC175817  Triteleia laxa Joseph P. Tracy 1912-6-30 3711 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC526350  Triteleia laxa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC526357  Triteleia laxa L. R. Abrams 1918-6-14 7089 Humboldt Korbel to Three Creeks near March's ranch Comment
  HSC23715  Triteleia laxa Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  SD46480  Triteleia laxa E. K. Balls, L. W. Lenz 1956-6-12 21663 Humboldt On steep, open, grassy slopes withscattered trees, 23 miles southwest of Willow Creek, along U.S. Highway 299 toward Arcata. 640 Comment
  SJSU136  Tsuga heterophylla Emily D. Smith 1934-8-23 Humboldt Big Lagoon midway between Trinidad & Orick Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  JEPS65676  Ulex europaeus Joseph P. Tracy 1923-11-24 6594 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC62939  Umbellularia californica Michael Dalke 1979-4-14 54 Humboldt Richardson Grove State Park, Hwy. 101 152 Comment
  SEINET12102554  Umbellularia californica E. H. Graham 1931-1 6960 Humboldt Along highway near Garberville Comment
  HSC15307  Utricularia macrorhiza W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  UC585978  Utricularia macrorhiza Joseph P. Tracy 1930-8-3 9146 Humboldt pond near Little Van Duzen R. on old rd. to Dinsmore's 762 Comment
  CAS-BOT-BC199312  Vaccinium ovatum Alice Eastwood 1907-4-21 40 Humboldt Port Trinidad Comment
  CAS-BOT-BC199313  Vaccinium ovatum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  RSA46873  Vaccinium ovatum Doris K. Kildale 1927-3-25 s.n. Humboldt Humboldt Hill Comment
  UC719767  Vaccinium ovatum Rogers McVaugh 1941-8-3 6218 Humboldt 1.25 mi s Headquarters Patrick Point State Park Comment
  CDA38877  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rte 101 at Mad River Overlook. Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  JEPS58705  Vaccinium parvifolium W. L. Jepson 1902-6-24 1926 Humboldt Korbel to Angel's Ranch Comment
  JEPS58710  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newell's old cmap, Kneeland Prairie Road, around Humboldt Bay, Northern Coast Region, Humboldt Bay 457 Comment
  UC154041  Vaccinium parvifolium J. P. Tracy 1907-5-20 2563 Humboldt Immediate vicinity Eureka 0 Comment
  CAS-BOT-BC199426  Vaccinium parvifolium H. E. McMinn 1922-8-4 333 Humboldt Near Van Dusen [Duzen] River Comment
  UCSC000556  Vaccinium parvifolium C. R. Clar 1930-7-14 99 Humboldt Hoopa, Supply Creek, Hoopa Indian Reservation 762 Comment
  HSC97947  Valeriana californica Cara Witte 2007-6-26 359 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/4 mile east from intersection with National Forest 1. 1457 Comment
  UC1239585  Valeriana sitchensis subsp. sitchensis E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges; Trinity Summit 1524 Comment
  CAS-BOT-BC76038  Vancouveria hexandra C. Hart Merriam 1922-7-5 s.n. Humboldt Fortuna. Carson Woods. Comment
  CAS-BOT-BC76046  Vancouveria hexandra Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  HSC28044  Vancouveria hexandra Chris Gist 1971-6-19 6 Humboldt Jolly Giant Canyon, HSU, Arcata Comment
  RSA183508  Vancouveria hexandra S. S. Stutz 1963-5-18 56 Humboldt Seven miles SE of Arcata on Fickle Hill Road. Comment
  HSC33418  Vancouveria planipetala Thomas W. Nelson 1974-5-30 1344 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC99039  Vancouveria planipetala Cara Witte 2008-7-7 838 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1 mile east of Horse Mountain Mine. 1241 Comment
  RSA438032  Vancouveria planipetala Miss Hutchinson 1927-7-1 s.n. Humboldt [Unspecified] Comment
  UCD95101  Vancouveria planipetala Rolf Y. Berg 1963-7-5 s.n. Humboldt near south entrance to Benbow Lake State Park, U.S. Highway 101. Comment
  UC1198212  Veratrum californicum var. californicum Joseph P. Tracy 1932-7-20 10733 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1173643  Veratrum viride Joseph P. Tracy 1934-8-29 13640 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC100694  Verbena prostrata Carl C. Marshall Jul 1887 327 Humboldt Dry interior valleys. Comment
  RSA777352  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  SD42479  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mi. so. of Fortuna 49 Comment
  HSC21220  Veronica serpyllifolia William J. Ferlatte 1963-5-8 38 Humboldt N end of Redwood Bowl, HSC campus, Arcata Comment
  UC1197477  Vicia americana var. americana Joseph P. Tracy 1933-5-20 12255 Humboldt near Petrolia (Mattole River); North Coast Region, Mattole River 15 Comment
  UC1197480  Vicia americana var. americana Joseph P. Tracy 1935-7-27 14308 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC1222597  Vicia americana var. americana Joseph P. Tracy 1950-6-8 18733 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Summit of Bear River Ridge); Bear River Ridge 609 Comment
  UCD108778  Vicia benghalensis Rimo Bacigalupi; L. Heckard, J. Weiler 1961-6-23 7838 Humboldt About 1 mile west of Carlotta (or about 1/2 mile east of Hydesville). Comment
  JEPS66180  Vicia gigantea W. L. Jepson 1902-8-4 13640 Humboldt near Petrolia; Humboldt Coast Comment
  HSC15269  Vicia gigantea C. O. Baker 1962-5-7 33 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  HSC15261  Vicia hirsuta D. B. Bader 1963-5-1 4 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  CAS-BOT-BC94775  Vicia sativa R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 839 Humboldt Humboldt Redwoods State Park. Pole Line Prairie, along Pole Line Road, 1 air mile N of Mattole Road, 6 air miles E of 274 Comment
  HSC3231  Vinca major W. F. Nickel 1965-5-15 Humboldt On Hwy. at N stoplight in Arcata. Comment
  CAS-BOT-BC263938  Viola adunca Doris Kildale 1931-5-10 10582 Humboldt Snow Camp Comment
  HSC21756  Viola adunca D. E. Anderson 1961-10-1 1856 Humboldt E side of Freshwater Lagoon Comment
  RSA24335  Viola adunca Carl B. Wolf 1941-2-25 9957 Humboldt Between Freshwater Lagoon and Stone Lagoon, 1/8 mile back from Ocean. 30 Comment
  HSC99356  Viola glabella K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 5 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET181214 Image available Viola glabella Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15202 Humboldt Bolling Grove State Park ; unspecified Comment
  CAS-BOT-BC536498  Viola glabella Alice Eastwood 1907-4-21 26 Humboldt Trinidad Comment
  HSC97729  Viola glabella C. Witte 2007-5-10 22 Humboldt Board Camp. 1/2 miles from National Forest 1, on Forest Service Road 4N38. 1395 Comment
  UC183742  Viola hallii Joseph P. Tracy 1913-6-17 4166 Humboldt near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 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
  UC1198452  Viola hallii Eleanor Ethel Tracy 1907-5-1 Humboldt near top of Lawrence Creek Hill; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1103558  Viola macloskeyi Joseph P. Tracy 1947-6-26 17744 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC21823  Viola ocellata W. Lanphere 1937-4-20 Humboldt Hoopa Comment
  UC1761429  Viola palustris Milo S. Baker 1923-8-23 445 b Humboldt 3 1/2 mi E of Eureka Comment
  UC1618240  Viola praemorsa subsp. linguifolia Barbara Ertter, Thomas J. Delendick 1987-5-16 6928 Humboldt Vista point west of Berry summit on Hwy 299. Near seepage on N side of road 914 Comment
  HSC90167  Viola praemorsa subsp. praemorsa Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 61 Humboldt Titlow Hill Rd., 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  UC164820  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1908-6-9 2667 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC67183  Viola purpurea subsp. integrifolia Thomas W. Nelson, Jane P. Nelson 1980-6-10 5434 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC98758  Viola purpurea subsp. purpurea Cara Witte 2008-7-2 818 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  CHSC24918  Viola sempervirens M. B. Simpson 1976-4-10 21 Humboldt Ca. 1 yd s of Wagon Wheel Rd, ca. .3 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  UC66213  Viola sempervirens Joseph Burtt Davy and Walter C. Blasdale 1899-5 5511 Humboldt Camp Grant to 2 mi from Pepperwood North; North Coast Ranges, Camp Grant Comment
  UC1197981  Vitis californica Joseph P. Tracy 1926-9-6 7797 Humboldt Trinity River Valley Northern Coast Ranges (near the South Fork) 182 Comment
  POM183574  Vulpia bromoides R. I. Bonn 1965-5-7 21 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  UC34061  Vulpia bromoides J. P. Tracy 1900-6-23 858 Humboldt immediate vicinity Eureka 0 Comment
  HSC47614  Vulpia microstachys J. P. Smith 1977-4-23 9030 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC525671  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7440 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1145202  Vulpia myuros var. hirsuta Joseph P. Tracy 1936-6-17 14959 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  UC53369  Vulpia myuros var. hirsuta M. A. H. 1896-6-2 Humboldt Eureka Comment
  HSC104099  Whipplea modesta Monica Rodriguez, William A. Worley 2015-4-11 27 Humboldt Rock Creek Ranch property; along South Fork Rd, 8.2 mi. from 199 Redwood Hwy. 134 Comment
  HSC20447  Whipplea modesta J. W. Johnson 1962-4-22 1280 Humboldt Willow Creek along the Hwy. on the canyon slope W of town Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  UC666826  Whipplea modesta Joseph P. Tracy 1937-7-2 15390 Humboldt Happy Camp Mountain Trinity Summit Range (ne of Hawkins Bar) 1280 Comment
  RSA46704  Woodwardia fimbriata Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  CAS-BOT-BC382925  Wyethia angustifolia Alice Eastwood; John Thomas Howell 1937-6-23 4788 Humboldt Near Dinsmore's Comment
  JEPS90114  Wyethia angustifolia Dean William Taylor May 1972 1069 Humboldt near Arcata Comment
  SBBG36550  Wyethia angustifolia H. and M. Dearing 1933-5-15 2521 Humboldt Weott Comment
  CAS-BOT-BC326976  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  UCD137002  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  UC1198221  Xerophyllum tenax Joseph P. Tracy 1933-7-11 12671 Humboldt Horse Mountain 1432 Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC35862  Zeltnera muehlenbergii Thomas W. Nelson, James Nelson 1975-8-5 2133 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC81491  Zeltnera muehlenbergii Thomas W. Nelson, Jane P. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  RSA21089  Zigadenus micranthus Carl B. Wolf 1937-6-14 8817 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC532733  Zigadenus micranthus Doris Kildale Gillespie 1931-6-7 10646 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  HSC49625  Zostera marina R. York 1979-4-22 248 Humboldt Along bluffs just N of College Cove Comment
  HSC104124  Zostera marina Justin Garwood 2015-7-5 Humboldt Comment
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Mar 1 2018
  RSA684208  Zostera marina R. Setzer 1972-7-29 6992 Humboldt Buhne Point; Humboldt Bay near Eureka. 0 Comment



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