Search Results — 2000 specimen records retrieved (1402 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  SEINET200991  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  HSC31505  Abies grandis Steve Selva, Roger Jensen 1974-8-27 88 Humboldt Hwy 299 ca. 1.0 mi. E of Blue Lake Comment
  UC1193117  Abies grandis P. J. Zinke 1950-9-21 163 Humboldt Salmon Creek 1 mi upstream from Mill Creek Salmon Creek, Quad. 29C1 152 Comment
  UC55645  Abies magnifica var. shastensis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 58121 Humboldt Trinity summit North Coast Ranges, Trinity Summit (ne Humboldt and nw Trini Comment
  CAS-BOT-BC73465  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest - extension of known range, Horse Trail Ridge, southwest slope. 1828 Comment
  HSC55137  Abies procera G. L. Clifton, Griswold 1979-8-1 12003 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SD42285  Abronia latifolia Carl B. Wolf 1937-9-9 3064 Humboldt Coast, 2 miles south of Cape Mendocino 6 Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CDA40642  Acaena novae-zelandiae G. D. Barbe, E. C. Whitney & Warren Simas 1978-7-26 2416 Humboldt East of Arcata airport between Fieldbrook and Crannell; Vic Guynup property. 0 Comment
  RSA202444  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt Ridge just SE of Forest Service Nursery, 2 miles SE of Grannell and 4 miles E of Hwy 101 Comment
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  RSA2926  Acer circinatum Carl B. Wolf 1931-8-29 2368 Humboldt 3 miles north of Orick, Davidsons Ranch on Prairie Creek 61 Comment
  RSA386075  Acer circinatum H. E. McMinn 1931-6-28 2549 Humboldt Orick to Requa Comment
  HSC58344  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12671 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC2810  Acer macrophyllum Francis Winter 1960-4-23 Humboldt 1.0 mi. N of Dollar Ranch on Korbel-Maple Creek Rd. 229 Comment
  HSC79478  Acer macrophyllum Kenneth Clark 1980-3-27 563 Humboldt Upper alluvial terrace of Dead Man's Gulch 76 Comment
  UC179927  Acer macrophyllum Joseph P. Tracy 1914-7-7 4493 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (region about Humboldt Bay) 0 Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC57983  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11717 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC419037  Achlys californica H. E. Parks May 1930 752 Humboldt along Van Duzen R. Van Duzen R. Comment
  CAS-BOT-BC400023  Achlys triphylla Wayne Roderick 1967-7-22 s.n. Humboldt Ca. 5 miles e. of Carlotta 45 Comment
  JEPS47775  Achlys triphylla subsp. triphylla Milo S. Baker 1923-7-29 166 Humboldt along hwy. near Lawrence Creek Comment
  UC526666  Achnatherum lemmonii Joseph P. Tracy 1927-5-14 8000 Humboldt near south fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD55568  Achnatherum lemmonii W. Robert Powell 1958-7-10 s.n. Humboldt 6 miles northeast of Lord Ellis Summit. 1158 Comment
  HSC33760  Acmispon micranthus A. Montalvo 1975-5-24 276 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC64762  Acmispon micranthus Bruce Gordon 1979-6-18 140 Humboldt Redwood National Park, NNE of K & K Rd, about 2.5 mi. S of junction of K & K Rd. and Bald Hills Rd. 707 Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA168919  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt NE side of top of Grouse Mtn Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC55084  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-31 11748 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56084  Actaea rubra G. L. Clifton, Griswold 1979-7-31 11772 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC203315  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  HSC79503  Adiantum aleuticum Kenneth Clark 1980-6-14 691 Humboldt Shelter Cove, N fork of Dead Man's Gulch 84 Comment
  UC275411  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  CAS-BOT-BC202605  Aesculus californica Marcus E. Jones 1931-7-12 28938 Humboldt Alton Comment
  SEINET3823281 Image available Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville 305 Comment
  UC1199009  Aesculus californica Joseph P. Tracy 1912-7-4 3727 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC57452  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-26 10272 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57997  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11763 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC479498  Ageratina occidentalis Marcus E. Jones, A. M. 1931-7-16 29137 Humboldt junction e of Arcata Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  RSA167313  Agoseris aurantiaca Joseph P. Tracy 1949-8-7 18441 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  UC205185  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1919-9-23 5284 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  RSA167299  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt In fallow field at north end of town. Garberville. Comment
  UC302295  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1926-6-27 7688 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  UC582744  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 E Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC119489  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1934-7-17 13417 Humboldt on open grasshills Grouse Mountain 1524 Comment
  UC1199475  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7021 D Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  HSC40016  Agoseris retrorsa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2919 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC667047  Agrimonia gryposepala Joseph P. Tracy 1940-6-16 16571 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  RSA87118  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon Comment
  CAS-BOT-BC127290  Agrostis exarata C. L. Hitchcock; C. V. Muhlick 1963-7-14 22909 Humboldt Along Eel River at Fern bridge. Comment
  HSC39906  Agrostis exarata J. P. Smith, Steve Selva 1970-6-30 4129 Humboldt Comment
  UC249865  Agrostis exarata Joseph P. Tracy 1924-7-13 6729 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UCD52344  Agrostis exarata P. B. Kennedy 1923-8-5 s.n. Humboldt Eel River, west fork, between Phillipsville and Garberville. Comment
  HSC58751  Agrostis gigantea Overton, Butler 1979-7-24 9619 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  RSA129594  Agrostis hallii H. S. Yates 1936-6-17 5689 Humboldt 1 mile W of Bridgeville 183 Comment
  UC1152035  Agrostis microphylla Joseph P. Tracy 1951-6-21 19532 Humboldt bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); bed of former Goose Lake, Everett Beck house on ranch, Hydes Comment
  UC180490  Agrostis microphylla Joseph P. Tracy 1914-5-14 4471 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1103397  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 9006 Humboldt wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC526664  Agrostis scabra Joseph P. Tracy 1932-7-16 10608 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC138631  Agrostis stolonifera Malcom A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  CAS-BOT-BC138632  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River. 6 Comment
  UC1103303  Aira caryophyllea J. P. Tracy 1899-7-22 330 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC138327  Aira caryophyllea var. caryophyllea A. A. Heller 1923-7-8 13765 Humboldt At a State redwood camp 10 miles south of Dyerville. Comment
  CAS-BOT-BC138329  Aira caryophyllea var. caryophyllea Doris K. Kildale 1925-6-14 680 Humboldt Head of South Yager Creek. 914 Comment
  RSA517225  Allium acuminatum Barbara Ertter, Thomas J. Delendick 1987-5-16 6920 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  HSC58148  Allium amplectens G. L. Clifton, Griswold 1979-8-2 12193 Humboldt Near Oregon Creek. 1661 Comment
  CAS-BOT-BC460753  Allium amplectens Volney Rattan 1903-1-1 s.n. Humboldt Kneeland Prairie 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
  CAS-BOT-BC462973  Allium bolanderi Harley P. Chandler 1901-6-1 1434 Humboldt Klamath River, North Coast Ranges 243 Comment
  HSC102062  Allium campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 964 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 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
  CAS-BOT-BC464486  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lassecks Peaks 1661 Comment
  RSA46682  Allium falcifolium Doris K. Kildale 1937-7-18 15132 Humboldt Horse Mt. Comment
  CDA43227  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy 101 ca. 1.0 miles west of Orick. 0 Comment
  UC666889  Allium validum Joseph P. Tracy 1932-7-13 10515 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC451304  Allotropa virgata Volney Rattan no date on label; presented 1903 s.n. Humboldt 20 mi. above Orleans Comment
  CAS-BOT-BC170948  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant, along Eel River 60 Comment
  UC249536  Alnus rhombifolia Joseph P. Tracy 1922-10-1 6117 Humboldt Cummings Creek Noerthern Coast Ranges, Van Duzen River (5 mi e of Carlotta) 30 Comment
  CAS-BOT-BC169540  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Moist ravine, Redwood Highway, 4 1/2 miles N of Fortuna on road to Eureka 15 Comment
  CAS-BOT-BC169545  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt Mattole River, near Petrolia 15 Comment
  UC72510  Alnus rubra H. P. Chandler 1905-5-1 Humboldt Eureka Comment
  SEINET12030338  Alnus rubra F. H. Utech 1986-1 86 -400 Humboldt ca 3 mi NW of Petrolla on Mattole Road (Co. F3C) 80 Comment
  UCD55913  Alopecurus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC1100224  Alopecurus geniculatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1164 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  UC1103314  Alopecurus geniculatus Joseph P. Tracy 1938-8-20 16139 Humboldt Alton 30 Comment
  SEINET201057  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UCD55925  Alopecurus saccatus Beecher Crampton 1953-5-14 1264 Humboldt 1.5 mile south of Walsh Station. Comment
Read comments
May 18 2016
  CAS-BOT-BC13705  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  CHSC56516  Ambrosia chamissonis L. P. Janeway 1983-9-24 704 Humboldt Sand-spit at Big Lagoon. 3 Comment
  JEPS40954  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC665537  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  CAS-BOT-BC143013  Amelanchier utahensis Barry Silver 1986-4-23 536 Humboldt Bair Road, 10 miles nw. of junction with Highway 299; Pine Ridge Summit area 996 Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  HSC17828  Anagallis arvensis Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  HSC96542  Anagallis arvensis Gordon Leppig 1997-8-13 646 Humboldt Big Lagoon County Park 3 Comment
  HSC37912  Anaphalis margaritacea Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC91928  Anaphalis margaritacea E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  JEPS20544  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  RSA247393  Anaphalis margaritacea Gary D. Wallace 1966-9-12 702 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  UCD128833  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  UC1028308  Anemone deltoidea George B. Rossbach 1955-6-8 273 Humboldt n portion Prairie Creek Redwoods State Park (Route 101) Comment
  UC1196191  Anemone oregana Joseph P. Tracy 1932-7-16 10628 Humboldt near Corral Prairie (Trinity Summit); Klamath Mtns, Trinity Summit 1524 Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC44403  Anemone oregana var. oregana R. York 1978-5-6 155 Humboldt Around Onion Lake on Bluff Creek Rd. 1220 Comment
  UC1197378  Angelica genuflexa Joseph P. Tracy 1940-9-26 16733 Humboldt 2 mi s of Fields Landing (Near Still Ranch) 6 Comment
  HSC36598  Angelica hendersonii Linda Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1308 Humboldt Megwill Point on Elk Head, N of Trinidad, in Trinidad State Beach 15 Comment
  JEPS14245  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UC1197374  Angelica tomentosa Joseph P. Tracy 1939-8-16 16411 Humboldt Horse Mountain 1432 Comment
  UC642266  Angelica tomentosa Joseph P. Tracy 1939-8-16 16410 Humboldt Horse Mountain 1432 Comment
  HSC70993  Angelica tomentosa Thomas W. Nelson 1977-9-3 3731 Humboldt Old logging road just E of Pine Mtn., Lassics 1433 Comment
  JEPS14219  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  CHSC105172  Antennaria suffrutescens B. Castro; L. P. Janeway 1996-8-3 704 Humboldt Six Rivers NF, near Horse Mtn. Along Titlow Hill Rd (Rd #1), on flat ridgetop. 1469 Comment
  RSA167202  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  JEPS13329  Anthemis cotula Lincoln Constance 1934-5-27 694 Humboldt Dyerville Bridge (s end), bar of S Fk Eel River South Fork Eel River, Bull Creek Region 45 Comment
  HSC103785  Anthemis cotula M. Mesler, K. A. Wayman 2015-8-4 1646 Humboldt Trail between Mill Creek Lakes trail head and Andy's Camp 1633 Comment
  SEINET11682983  Anthoxanthum occidentale K. S. Erdman 1970-1 4790 Humboldt Redwood National Park, 0.5 mi inside Holter Ridge entrance along Bald Hills Road SE of Orick Comment
  HSC8942  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  HSC8948  Anthoxanthum odoratum William J. Ferlatte 1963-5-6 34 Humboldt Arcata, near 11th and B Sts. Comment
Read comments
Jun 6 2012
  SEINET3918448  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mile west of Barry Road.; 0 Comment
  UC1152030  Anthoxanthum odoratum Joseph P. Tracy 1951-6-26 19548 Humboldt Snow Camp Meadow Comment
  UC922011  Anthoxanthum odoratum Joseph P. Tracy 1942-6-2 17101 Humboldt 2 mi n of Bridgeville 609 Comment
  UCD56238  Anthoxanthum odoratum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1208 Humboldt ca. 2 miles north of Eureka, Humboldt Bay. Comment
  UCD56278  Anthoxanthum odoratum H. E. Parks; S. T. Parks 1952-4 24444 Humboldt Trinidad, Spruce Cove. 60 Comment
  HSC8941  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  UC642322  Anthriscus caucalis H. E. Parks and Joseph P. Tracy 1927-4-24 7927 Humboldt Eureka; railroad station 6 Comment
  CDA20237  Antirrhinum vexillo-calyculatum subsp. breweri Humboldt Ag Comm 2003-11-18 PDR 1417772 Humboldt North Coast Ranges; Hwy 101 at MM 2.75 near Garberville. 0 Comment
  JEPS5352  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  SD120899  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 359 Humboldt Willow Creek. Forest Service Road 10N02 (to Waterman Ridge and Horse Linto Creek), 0.8 miles N of junction with Sunset Pl. 2.7 miles from start of Patterson Road(at end of River Road, 0.9 miles from Hwy. 299 in Willow Creek 213 Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  UC1198737  Aphanes occidentalis J. P. Tracy 1904-4-3 2005 Humboldt immediate vicinity Eureka 0 Comment
  HSC73424  Aphanes occidentalis Robert Kirkpatrick, Doug Renwick 1981-4-3 147 Humboldt 2 mi. N of Coastguard Station on Samoa Blvd. 5 Comment
  HSC57660  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-7-25 10835 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58067  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-8-1 11946 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC154172  Apocynum cannabinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5896 Humboldt near Requa Comment
  HSC48762  Aquilegia formosa Brad Klipfel 1973-6-10 98 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196201  Aquilegia formosa Joseph P. Tracy 1901-6-23 1170 Humboldt Eureka vicinity 0 Comment
  HSC56137  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-8-1 11957 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  POM118664  Aquilegia formosa var. truncata Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  SEINET12094713  Aquilegia formosa var. truncata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -310 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC70390  Arabis breweri var. breweri Gail Newton 1980-6-7 140 Humboldt Near Brush Mtn. 1128 Comment
  HSC76368  Arabis breweri var. breweri Denis Kearns 1981-7-21 293 Humboldt Near Whiteys Peak 1585 Comment
  HSC90416  Arabis breweri var. breweri C. Wilson, P. Kittleson, M. Hardig 1992-3-17 36 Humboldt Titlow Hill Rd., 1.7 mi. S of intersection with Hwy. 299 1037 Comment
  HSC57443  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10246 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC6523  Arabis glabra D. E. Anderson 1962-5-10 2206 Humboldt Lanphere Ranch. Comment
  HSC6527  Arabis glabra D. E. Anderson 1962-7-10 2245 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC73533  Arabis glabra Gail Newton 1980-7-14 1464 Humboldt Near Last Chance Ridge 1219 Comment
  HSC73735  Arabis glabra M. A. Baker 1980-7-22 3085 Humboldt Near Salmon Mtn. 1820 Comment
  HSC48750  Arabis holboellii var. retrofracta Brad Klipfel 1973-6-10 76 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC198606  Arabis subpinnatifida Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  HSC74651  Arbutus menziesii M. A. Baker 1980-5-17 1235 Humboldt Near Le Perron Peak 792 Comment
  RSA175206  Arbutus menziesii R. F. Thorne 1957-9-2 19006 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC585948  Arctostaphylos Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  JEPS38981  Arctostaphylos bakeri subsp. bakeri Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
Read comments
Mar 7 2007
  UCR32088  Arctostaphylos canescens David J. Keil 1983-7-2 17321 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC24096  Arctostaphylos canescens subsp. canescens Joseph P. Tracy 1949-8-4 18405 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  BLMAR648  Arctostaphylos columbiana Jennifer Wheeler 2011-5-27 648 Humboldt Lacks Creek, Pine Ridge Road, spur at Stormy Saddle 1097 Comment
  CAS-BOT-BC23749  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of arcata 609 Comment
  CAS-BOT-BC23755  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1328 Humboldt Patrick's Point Comment
  CAS-BOT-BC23785  Arctostaphylos columbiana Doris K. Kildale 1927-2-22 2980 Humboldt Kneeland Prairie at juncion of old and new roads 609 Comment
  CAS-BOT-BC23818  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt Wilder Ridge (near Kings Peak) 762 Comment
  JEPS19870 Image available Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  JEPS38611  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon 15 Comment
  UC549499  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  UC673126  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt near KIngs Peak; Wilder Ridge 762 Comment
  CAS-BOT-BC23735  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11995489  Arctostaphylos columbiana W. Knight, Knight, I. 1988-1 6363 Humboldt Bald Hill Rd about 21.5 mi from US 101 en route to Hoopa 930 Comment
  HSC54574  Arctostaphylos glandulosa Overton, Butler 1979-7-24 9608 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  SEINET11998344  Arctostaphylos klamathensis Unknown 1989-1 s.n. Humboldt Fish Lake Area near Weitchpec, near Klameth River 549 Comment
  HSC35598  Arctostaphylos knightii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2013 Humboldt French Camp, Bald Hills. Comment
  POM131743  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1918-7-6 5056 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC32687  Arctostaphylos manzanita subsp. manzanita Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC55024  Arctostaphylos nevadensis Overton, Butler 1979-7-31 11436 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC40066  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge21.4 miles east of US 101 on Bald Hills Road (from Orick) Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  UC1198670  Arctostaphylos patula Joseph P. Tracy 1937-7-29 15599 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  CAS-BOT-BC43998  Arctostaphylos uva-ursi Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC77903  Arctostaphylos uva-ursi L. P. Janeway 1984-5-16 799 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  HSC90240  Arctostaphylos uva-ursi L. Watson, J. Meninga Mar 1991 12 Humboldt Near Manilla. Mad River Slough and Dunes. N of parking lot, W of trail Comment
  SEINET2031083 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-1 16740 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  UC21913  Arctostaphylos uva-ursi Harley P. Chandler May 1901 1133 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UC673124  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 16740 Humboldt near Samoa; Humboldt Bay 6 Comment
  SEINET11987332  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4213 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from Samoa Comment
  UC1795607  Arctotheca calendula G. D. Barbe, T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale Comment
  UCD56445  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC16898  Armeria maritima subsp. californica L. H. Myers 1963-5-5 2 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC26887  Armeria maritima subsp. californica Clifton Raymond Chesbrough 1973-6-19 99 Humboldt 0.5 mi. N of College Cove, along the coast. Comment
  HSC48771  Armeria maritima subsp. californica Brad Klipfel 1975-5-22 618 Humboldt Near city of Eureka airport S of Samoa Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  HSC89499  Armeria maritima subsp. californica M. Roantree 1985-5-24 50 Humboldt N side of Trinidad Head on slope below trail. Comment
  HSC96202  Arnica cernua April A. Allard, Gregory O'Connell 2005-6-24 14 Humboldt 4.5 miles south of Hwy. 299 on NF1 at junction at base of radio tower 1421 Comment
  UC166070  Arnica discoidea Joseph P. Tracy 1911-7-11 3513 Humboldt hills near Supply Creek; Hoopa Valley 182 Comment
  SEINET10475267  Arnica discoidea var. alata Mary Susan Taylor 1980-6-11 Taylor 2842 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  HSC32483  Arrhenatherum elatius D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5719 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC48525  Arrhenatherum elatius Thomas W. Nelson, Jane P. Nelson 1978-7-3 4412 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  CAS-BOT-BC146268  Arrhenatherum elatius var. elatius T. C. Fuller 1966-10-4 15237 Humboldt Northwest portion of Arcata. Comment
  RSA21567  Aruncus sylvester Doris Kildale Gillespie 1937-09 9368 Humboldt Humboldt Comment
  HSC102182  Asarum caudatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1096 Humboldt Patterson Meadows 1566 Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  SEINET3873461  Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.S. Hwy 101 ca 2.8 miles south of Stafford, near Exit 674.; 0 74 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  CAS-BOT-BC400535  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  POM199456  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  SEINET8588609  Asarum caudatum J. D. Freeman, R. F. Freeman 1967-5-7 584 Humboldt Moist low bluff just W of Cal. Hwy 36 and just N of Carlotta. Comment
  SEINET201000  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt West side of Trinity River near Willow Creek. 183 Comment
  SEINET10857354  Asclepias fascicularis R. W. Schery, E. M. Curtis 1939-7-20 Schery 8 Humboldt West of Sequaia 914 Comment
  POM289176  Aster chilensis Lyman Benson 1928-7-10 448 Humboldt Clam Beach, Trinidad. 9 Comment
  RSA93746  Aster radulinus F. W. Peirson 1923-7-10 3881 Humboldt Garberville. Comment
  RSA0006694  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  CAS-BOT-BC186562  Astragalus nuttallii var. virgatus F. H. Utech 1986-5-23 86 -385 Humboldt King Mountain Range: 0.5 mi NNW on Kings Peak Road (Humboldt Co. hwy C4A) from junction with Shelter Cove Road 600 Comment
  UC1199092  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1930-7-21 8891 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  JEPS22950  Astragalus rattanii var. rattanii Volney Rattan 1873-3 Humboldt Big Creek Comment
  UC33516  Astragalus rattanii var. rattanii Chesnut and Drew July 1888 Humboldt Mad River Comment
  JEPS118178  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  SEINET948795  Astragalus umbraticus Joseph P. Tracy 1940-1 16706 Humboldt Bald Mountains; at Lake Prairie 1067 Comment
  UC180213  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  CAS-BOT-BC69453  Athyrium filix-femina subsp. cyclosorum Carl B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 mi. below Blocksburg on road to Bridgeville. 304 Comment
  POM319593  Athyrium filix-femina subsp. cyclosorum Patricia Wilder 1968-8-21 4383 Humboldt Bog in Big Lagoon park, just west of Highway 101 2 Comment
  HSC10343  Athyrium filix-femina var. cyclosorum H. S. Logsdon 1964-5-10 3 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  UC1198294  Athysanus pusillus Joseph P. Tracy 1908-6 2939 Humboldt nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  UC1198298  Athysanus pusillus Joseph P. Tracy 1927-3-27 7848 Humboldt Trinity River Valley near the South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  HSC9006  Avena fatua E. W. Styskel 1963-5-19 34 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC9010  Avena fatua E. W. Styskel 1964-4-3 55 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  HSC9032  Avena sativa E. W. Styskel 1964-4-28 76 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  UCD56094  Avena strigosa Ma. Jaegar 1926-6-8 415 3d Humboldt Happy Valley. Comment
  SEINET200595 Image available Azolla caroliniana J. P. Tracy 1911-6-25 3245 Humboldt Covering several acres of pool back of Holmes Mill Bucksport northern coast region of California Comment
  UC1192363  Azolla filiculoides Malcolm A. Nobs and S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  UC673091  Baccharis pilularis Joseph P. Tracy 1940-10-17 16765 Humboldt Camp Grant, along Eel River, 2 to 5 mi e of South Fork Eel River 45 Comment
  UC165030  Bellis perennis J. P. Tracy 1901-6-10 1127 Humboldt about Eureka 0 Comment
  UCR123950  Bellis perennis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6993 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
  RSA167308  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
  UC1046539  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; Bald Mountain ridge, btw Mad River and Redwood Creek 1066 Comment
  BLMAR722  Berberis aquifolium var. repens Jennifer Wheeler 2014-4-9 722 Humboldt Lacks Creek, Along Pine Ridge Rd 1091 Comment
  HSC71607  Berberis aquifolium var. repens Gail Newton 1980-6-16 201 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC75678  Berberis nervosa Doris K. Kildale 1926-11-25 2827 Humboldt Lord-Ellis road. Comment
  UC1174869  Berberis nervosa P. C. Everett and E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi ne from Blue Lake (US Hwy 299, Arcata to Willow Creek) 274 Comment
  UC169912  Berberis pinnata Mrs. M. H. Manning April, 1901 33 Humboldt near Hupa Comment
  HSC64434  Bistorta bistortoides J. P. Smith, Steve Selva 1970-6-30 4119 Humboldt Comment
  RSA1505  Blechnum spicant E. R. Johnson 1929-08 1408 Humboldt Arcata Redwood Park Comment
  SD112347  Blechnum spicant Darley F. Howe 1961-8-1 3109 Humboldt Three mi. N of Arcata on Hwy. 101. Comment
  CAS-BOT-BC66271  Blechnum spicant A. M. Showalter 1925-8-12 s.n. Humboldt west of Orick Comment
  HSC986  Blechnum spicant R. A. Eagle 1964-5-15 41 Humboldt H. S. C. campus, trail to Jolly Giant parking lot Comment
  SEINET11716007  Blechnum spicant D. E. Boufford 1973-1 11067 Humboldt Eureka, Sequoia Park Comment
  UCD136026  Blechnum spicant Gordon Leppig 1998-6-26 860 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. UTM zone 10, 4535N, 405E. 18 Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  UC1198302  Boechera acutina Joseph P. Tracy 1935-7-26 14255 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC1222706  Boechera pauciflora Joseph P. Tracy 1950-8-8 19293 Humboldt head of Croghan Hole Trinity Summit, Croghan Hole Comment
  RSA182023  Boisduvalia glabella Joseph P. Tracy 1916-6-19 4726 Humboldt Northern coast ranges: Dobbyn Creek 183 Comment
  CDA5649  Borago officinalis T. C. Fuller 1958-6-17 598 -58 Humboldt Ferndale. 0 Comment
  HSC48731  Boschniakia strobilacea J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 521 Humboldt Off Forest Rd. 10N05, SE slope of Hopkins Butte 1037 Comment
  HSC913  Botrychium multifidum D. K. Walker 1968-11-6 Humboldt Clam Beach, old railroad cut below Vista Point lookout on Hwy. 101 about 1.5 mi. S of Trinidad Comment
  CAS-BOT-BC420268  Boykinia occidentalis E. A. McGregor 1921-8-17 s.n. Humboldt on old abandoned road grade s.e. of Orick Comment
  HSC37396  Boykinia occidentalis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 510 Humboldt Along Lost Man Creek. 38 Comment
  HSC60020  Boykinia occidentalis M. A. Baker 1978-5-6 510 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC98977  Boykinia occidentalis Cara Witte 2008-7-28 958 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1641 Comment
  CAS-BOT-BC106288  Brickellia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS18619  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork Eel River, Richardson Grove Comment
Read comments
Feb 5 2011
  HSC26817  Briza maxima Glenn I. Wilcox 1973-5-26 Humboldt W shore of Freshwater Lagoon Comment
  SEINET10468010  Briza maxima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2503 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville. Vast colony of yellow Lupinus arboreus. 3 Comment
  HSC48476  Briza minor J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9931 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  UC34059  Briza minor J. P. Tracy 1900-6-5 835 Humboldt Immediate vicinity of Eureka 0 Comment
  SEINET4344866  Briza minor W. D. Billings 1940-6-22 1347 Humboldt 1/2 mile N. of Trinidad Comment
  SEINET10833761  Brodiaea ida-maia Lyman D. Benson 1930-7-18 Benson 2188 Humboldt West of Willow Creek. Mt. Range, Seaward N coast. River West of Trinity 1500 feet. Slope south Barren hillsides, abundant. Comment
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  CAS-BOT-BC144346  Bromus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC149451  Bromus briziformis Henry M. Pollard 1948-7-19 s.n. Humboldt River road near Van Fleet Ranch, near Orleans. Comment
  SEINET11675365  Bromus carinatus J. P. Tracy 1951-1 19569 Humboldt Snow Camp-Twin Lakes vicinity Comment
  UCD59150  Bromus carinatus var. marginatus A. H. Murphy 1951-5-18 s.n. Humboldt 1.5 mi. south of Petrolia on county road. West side of Mattole River near bridge. Comment
  UC180223  Bromus diandrus Joseph P. Tracy 1913-6-22 4273 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  HSC103007  Bromus hordeaceus J. P. Smith 2014-5-23 13847 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 17 Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC552680  Bromus hordeaceus Joseph P. Tracy 1935-5-25 13867 Humboldt Fort Seward 106 Comment
  SEINET11682985  Bromus hordeaceus K. S. Erdman 1970-1 4784 Humboldt Doleson Hill Prairie, Bald Hills Rd SE of Orick Comment
  UC37638  Bromus laevipes Joseph Burtt Davy 1899-6-21 5724 Humboldt Hupa Valley, Supply Creek Supply Creek; Hupa Valley, Supply Creek Comment
  HSC9306  Bromus madritensis subsp. rubens D. E. Anderson 1965-5-15 3705 Humboldt Along Hwy. 299, just N of Sugar Bowl Ranch. Comment
  HSC9332  Bromus madritensis subsp. rubens C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 43 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  UC37724  Bromus tectorum Harley P. Chandler June, 1901 1432 Humboldt North Coast Ranges, Klamath River Klamath River; North Coast Ranges, Klamath River 335 Comment
  POM277333  Bromus vulgaris Lyman Benson 1928-7-8 258 Humboldt Weott Ranger Station; Seaword N Coast Mt. Range; S. Fork Eel River. 61 Comment
  SEINET11092946  Cakile edentula var. edentula Unknown 1940-10-3 16739 Humboldt CALIFORNIA PLANT -- HUMBOLDT COUNTY annual, formign bushy-branched plants 2 ft tall Common on ocean beach, just above high tide. SAND DUNES, NEAR SAMOA, ON HUMBOLDT BAY Altitude 10 feet. Comment
  HSC40408  Cakile maritima Linda M. Barker 1976-6-22 1627 Humboldt 3 mi. W of Arcata Comment
  UC511547  Calamagrostis nutkaensis Ira L. Wiggins 1932-7-25 5898 Humboldt roadsides near McKinleyville Comment
  HSC45628  Calandrinia ciliata Diane L. Reed 1978-5-27 132 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  UC176676  Calandrinia ciliata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3580 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC56944  Calocedrus decurrens Overton, Butler 1979-7-23 9433 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC488620  Calochortus elegans var. nanus Doris Kildale Gillespie 1931-6-7 10586 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  SEINET4169987  Calochortus pulchellus Unknown 1948-6-13 18050 Humboldt Harris 610 Comment
  HSC100551  Calochortus pulchellus Carl C. Marshall May 1887 479 Humboldt S Humboldt. Comment
  CHSC24838  Calochortus tolmiei A. D. Launer 1976-4-9 2 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC102535  Calochortus tolmiei M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1521 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC15332  Calochortus tolmiei W. K. Parks Jul 1933 1194 Humboldt S Fork Mtn. Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  RSA168945  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  UC195348  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  CAS-BOT-BC175760  Caltha leptosepala Doris Kildale 1931-5-10 10578 Humboldt Snow Camp Comment
  POM209567B  Calycadenia ciliosa Chesnut, E. R. Drew 1889-1 s.n. Humboldt [No locality information on label] Comment
  HSC98759  Calyptridium monospermum Cara Witte 2008-7-2 815 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC99454  Calyptridium monospermum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 106 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
  UC198589  Calyptridium monospermum Joseph P. Tracy 1917-9-2 4848 Humboldt Grouse Mountain at the summit Grouse Mountain; Northern Coast Ranges, Grouse Mountain 1524 Comment
  HSC74405  Calyptridium umbellatum Gail Newton 1980-8-10 2017 Humboldt Near Blake Mtn. 1798 Comment
  UC562488  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-25 12883 Humboldt Grouse Mountain , Grouse Mountain (North Coast Ranges) 1524 Comment
  UC141691  Calystegia occidentalis subsp. occidentalis T. S. Brandegee Humboldt Dutch Flat Comment
  UC175713  Calystegia purpurata Joseph P. Tracy 1912-7-26 3859 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  HSC79454  Calystegia purpurata subsp. purpurata Kenneth Clark 1980-4-18 604 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  RSA12420  Camassia leichtlinii subsp. suksdorfii Carl B. Wolf 1934-7-2 5873 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  JEPS8450  Camassia quamash subsp. quamash Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt between Mad River and Redwood Creek (Bald Mountain Ridge), at Snow Camp Redwood Creek; Snow Camp 1432 Comment
  NY679576  Camissonia cheiranthifolia subsp. cheiranthifolia L. Abrams 1916-7-18 6120 Humboldt Arcaba to Trinidad. Comment
  UC144073  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Joseph P. Tracy 1901-8-7 1263 Humboldt Humboldt Bay Northern Coast Region (ocean beach) Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  SEINET10462895  Campanula prenanthoides Anderson 1962-7-17 Anderson 2273 Humboldt CAMP BAUER, CA. .25 MI E OF KORBEL ON N FORK MAD R. Comment
  SEINET10462993  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt Klamath River; Orleans to Somes Bar 305 Comment
  SEINET10463059  Campanula prenanthoides Vollmer VOLLMER 149 Humboldt ON ROAD TO BALD MTN, E OF KORBEL Comment
  SEINET10840309  Campanula prenanthoides Lincoln Constance 1934-6-11 Constance 854 Humboldt HUMBOLDT REDWOOD PARK ABOVE RD OPP. MOUTH BULL CR., DRY S BANK ABOVE RD 250 Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  UC492265  Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC6623  Capsella bursa-pastoris Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  HSC26654  Cardamine breweri Thomas W. Nelson 1971-4-27 427 Humboldt Along Jolly Giant Creek, HSU campus Comment
  UC203897  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC37422  Cardamine californica Doris K. Kildale 1927-3-20 2913 Humboldt Philipsville on Smith Fork of Eel River. Comment
  SFV18478  Cardamine californica J. Wanamaker, M. Ellestad, S. Magnuson 1998-2-28 s. n. Humboldt Trinidad. 0.75 miles along Mill Creek trail. 18 Comment
  UC249683  Cardamine californica Joseph P. Tracy 1921-3-20 5425 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  UC302042  Cardamine californica var. integrifolia Joseph P. Tracy 1926-3-28 7393 Humboldt Blue Slide on Van Duzen River; Northern Coast Ranges, Blue Slide on Van Duzen River 91 Comment
  UC1222655  Cardamine californica var. sinuata Joseph P. Tracy 1950-5-7 18651 Humboldt on the Redwood House Road 1 mi s Redwood House (on Yager Slope, head of South Yager Creek); head of South Yager Creek, on Yager Slope Comment
  CAS-BOT-BC410931  Cardamine cordifolia Allison Hastings 1938-5-14 s.n. Humboldt Maple Springs Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  CAS-BOT-BC384762  Cardionema ramosissimum L. R. Abrams 1916-7-18 6124 Humboldt Arcata to Trinidad Comment
  HSC4143  Cardionema ramosissimum Norman H. Moe 1962-5-23 Humboldt Lanphere's Place Comment
  HSC91607  Cardionema ramosissimum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  SEINET11861099  Carduus pycnocephalus J. P. Tracy 1947-6-8 17703 Humboldt 0.5 mi W of town, vicinity of Carlotta 30 Comment
  HSC5226  Carduus tenuiflorus D. E. Anderson 1963-5-25 2487 Humboldt 1 mi. N of Capetown Comment
  CAS-BOT-BC18002  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  HSC96377  Carex arcta Gordon Leppig, Tony LaBanca 2005-9-21 2321 Humboldt Pacific Lumber Company land; Clark Mountain Fen, Headwaters of Root Creek on NW side of Clark Mountain. 400 Comment
  JEPS109914  Carex arcta Dean W. Taylor 2006-8-3 19573 Humboldt Lake Prairie; marshy area between the dam and the county road 1057 Comment
  CAS-BOT-BC18074  Carex athrostachya Joseph Prince Tracy 1934-7-18 13426 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC102200  Carex athrostachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1114 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC19434  Carex bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  CHSC90273  Carex brainerdii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8588 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  CAS-BOT-BC110194  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  UC249736  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  CAS-BOT-BC34211  Carex canescens Joseph Prince Tracy 1939-7-9 16318 Humboldt Blad Mountain; at Lake Prairie. 1066 Comment
  UC1103598  Carex concinnoides Joseph P. Tracy 1926-6-27 7681 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1103112  Carex deweyana subsp. leptopoda Joseph P. Tracy 1933-6-2 12527 Humboldt Shively 60 Comment
  CAS-BOT-BC20076  Carex echinata Joseph Prince Tracy 1926-6-27 7666 Humboldt Northern Coast Ranges. Horse Mountain. 1463 Comment
  CAS-BOT-BC20077  Carex echinata Joseph Prince Tracy 1932-7-14 10567 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC96553  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 446 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC76837  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  SEINET7558331 Image available Carex exsiccata L. P. Janeway 2003-7-30 7941 Humboldt Grouse Mountain Quad, High North Coast Ranges. On the southwest side of Titlow Hill Road 1.1 km south of Cold Springs. 1426 Comment
  RSA167280  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  JEPS80027  Carex globosa Joseph P. Tracy 1936-5-22 7507 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  SEINET7561242 Image available Carex harfordii Andrew L. Hipp 1999-6-2 483 Humboldt Orick, Redwood National Park, Bald Hill Road, 16.7 mi from 101. 503 Comment
  UC834  Carex harfordii Harley P. Chandler May, 1901 1115 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
Read comments
Sep 15 2010
  UC562719  Carex hassei H. E. Parks and Joseph P. Tracy 1931-5-9 9401 Humboldt vicinity Trinidad; Bishop Pine Lodge 60 Comment
  UC562720  Carex hassei Joseph P. Tracy 1927-6-17 8170 Humboldt Big Lagoon Northern Coast Region 6 Comment
  SEINET10650834  Carex hendersonii Joseph W. Congdon 1904-7-24 Congdon s.n. Humboldt Mariposa. Arcata. Comment
  SEINET10855915  Carex hendersonii David Castaner 1984-5-29 Castaner 8070 Humboldt Entrance road to Cal-Barrel area. Moist forest. Comment
  UC1103594  Carex hendersonii Joseph P. Tracy 1939-4-25 16225 Humboldt mouth of Bull Creek Bull Creek 60 Comment
  JEPS25977  Carex integra Joseph P. Tracy 1935-7-23 14139 Humboldt at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC98937  Carex interior Cara Witte 2008-7-30 971 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  CAS-BOT-BC28501  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  SEINET7467750 Image available Carex leptopoda J. A. Churchill 1984-5-29 8069 Humboldt entrance road to Cal-Barrel Area Comment
  UC1152083  Carex luzulina var. luzulina Joseph P. Tracy 1951-6-14 19410 Humboldt Snow Camp Comment
  SEINET12649599 Image available Carex mendocinensis Peter F. Zika 2011-1 25496 Humboldt 1310 Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC196571  Carex obnupta Joseph P. Tracy 1916-5-31 4696 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Holmes Flat 60 Comment
  UC249734  Carex obnupta Joseph P. Tracy 1923-9-2 6541 Humboldt McClellan Mt. Northern Coast Ranges 914 Comment
  CAS-BOT-BC119271  Carex ovalis Joseph Prince Tracy 1937-8-7 15617 Humboldt Bald Mt. Murphy Ridge. 914 Comment
  UC562553  Carex ovalis Joseph P. Tracy 1936-6-28 15012 Humboldt near Murphy Meadow; Bald Mt. 914 Comment
  HSC78036  Carex rostrata Gail Newton 1980-8-10 2050 Humboldt Near Blake Mtn. 1707 Comment
  UC1103624  Carex scopulorum var. bracteosa Joseph P. Tracy 1935-7-26 14263 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC118231  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit. Coral Prairie. 1584 Comment
  CHSC106517  Carex serratodens Peter F. Zika 2009-6-19 24499 Humboldt Outer North Coast Range (NCoRO). Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CHSC106512  Carex tumulicola Peter F. Zika 2009-6-15 24495 Humboldt Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits, above Route 299, 2.3 road miles W of junction with Chezen Road. 680 Comment
  JEPS63534  Carex tumulicola W. L. Jepson 1932-8-9 16535 Humboldt Bull Creek 106 Comment
  UC249758  Carex tumulicola Joseph P. Tracy 1923-6-19 6296 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC562337  Carex tumulicola Joseph P. Tracy 1930-7-10 8859 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  UC202501  Carex tumulicola Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3591 Humboldt Hydesville Northern Coast Ranges 60 Comment
  JEPS109269  Carex unilateralis D. W. Taylor 2004-6-24 19135 Humboldt Clear Lake, Titlow Hill Road Comment
  CAS-BOT-BC115544  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  UC50833  Carex vesicaria var. major J. P. Tracy 1901-6-30 1194 Humboldt immediate vicinity Eureka 0 Comment
  HSC7088  Carex viridula H. E. Parks Sep 1934 5157 Humboldt Dry Lagoon Comment
  CHSC43009  Carex viridula subsp. viridula L. P. Janeway 1987-8-30 2534 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  UC1056035  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt Dry Lagoon Comment
  CAS-BOT-BC249128  Castilleja affinis Doris Kildale Gillespie 1931-6-7 10652 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC20571  Castilleja affinis subsp. litoralis R. E. Hafenfeld 1965-5-9 29 Humboldt 1/2 mi. S of Squashan Cr. Jct. Gold Bluff Beach Rd. Comment
  HSC45088  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 24 Comment
  JEPS25802  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-31 1222 Humboldt Trinidad Head, near lighthouse Trinidad Head Comment
  HSC38444  Castilleja ambigua subsp. humboldtiensis J. P. Smith 1976-7-3 8934 Humboldt Just N of Samoa Bridge Comment
  UC604629  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  HSC30760  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, James Nelson 1973-5-28 922 Humboldt N of Black Lassic along U.S.F.S. Rd. 1S07 Comment
  CHSC32837  Castilleja attenuata Lora L. Anderson 1981-4-26 18 Humboldt Ca. 1.5 mi ne of Redwood creek 4.5 mi n of 299 w 18 mi ne of Arcata. 228 Comment
  SEINET4095680  Castilleja exserta O. M. Clark 1932-1 5341 Humboldt North Eureka. Comment
  HSC41275  Castilleja pruinosa Brad Klipfel 1974-6-25 427 Humboldt Horse Mtn. Comment
  UC1196746  Castilleja pruinosa Joseph P. Tracy 1942-6-23 17227 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC56416  Castilleja rubicundula subsp. lithospermoides Griswold, Butler 1979-7-11 7070 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC1502103  Ceanothus R. Sutherland 1975-7-4 8 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  UC1502114  Ceanothus R. Sutherland 1976-5-11 7 .11.76 Humboldt just outside Sec 32 Pt. Delgado Quad.; Pt. Delgada Quad. 609 Comment
  HSC44451  Ceanothus arcuatus Brad Klipfel 1975-5-30 653 Humboldt Horse Mtn. Comment
  HSC55626  Ceanothus cordulatus Overton, Butler 1979-7-24 9605 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET200665  Ceanothus cordulatus J. P. Tracy 1935-7-14 14092 Humboldt Grouse Mountain ridge near 'Clear Lake 1524 Comment
  UC1198032  Ceanothus cordulatus Joseph P. Tracy 1935-7-14 14092 Humboldt near Clear Lake (ridge); Northern Coast Ranges 1524 Comment
  CAS-BOT-BC49319  Ceanothus cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mountain 1432 Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  HSC38378  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8050 Humboldt Rd. to Shelter Cove, 5 mi from the Whitethorn-Ettersburg junction Comment
  HSC98731  Ceanothus integerrimus Cara Witte 2007-8-9 635 Humboldt Friday Ridge Road/ 6N08. 1.5 miles north of intersection with Forest Service Road 5N09. 1383 Comment
  UC1198007  Ceanothus integerrimus Joseph P. Tracy 1935-5-25 13878 Humboldt Fort Seward 106 Comment
  UC1502118  Ceanothus oliganthus var. oliganthus R. Sutherland 1976-2-2 2 B Humboldt just ne Rattlesnake Ridge (n of unnamed 4005' saddle.); Point Delgada quad. 1066 Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  HSC76580  Ceanothus pumilus Denis Kearns 1981-7-6 67 Humboldt Near Mosquito Lake 1256 Comment
  BLMAR200  Ceanothus thyrsiflorus Donald Hazlett 1994-6-7 200 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52989  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt On grassy slopes along the grade south of Eureka Comment
  HSC12358  Ceanothus thyrsiflorus C. Kline 1970-11-28 82 Humboldt Hwy 101, 1 mi S of Arcata Comment
  HSC18341  Ceanothus thyrsiflorus Francis Winter 1960-4-23 Humboldt 1.0 mi S of Dollar Ranch Korbel-Maple Creek Rd. 152 Comment
  RSA172183  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-2 19005 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UCD112721  Ceanothus thyrsiflorus R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  UCD112839  Ceanothus velutinus J. Street 1950-6-24 s.n. Humboldt Close to coast north of Usal. Comment
  HSC56191  Ceanothus velutinus var. velutinus Gilbert Muth 1979-8-1 12131 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC98771  Centaurea diffusa Cara Witte 2007-8-9 634 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  CAS-BOT-BC272098  Centaurea melitensis T. C. Fuller 1961-3-21 5856 Humboldt 1 mi. NE limits Eureka Comment
  RSA34006  Centaurea melitensis J. Wendell Howe 1933-7-26 s.n. Humboldt Mad River near Blue Lake Comment
  CDA7309  Centaurea pratensis E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  UC1196465  Cephalanthera austiniae Joseph P. Tracy 1914-7-5 4577 Humboldt between High Prairie and Snow Camp (Bald Mt.); Northern Coast Ranges, Bald Mt. 1219 Comment
  HSC4103  Cerastium glomeratum S. R. Johnson 1965-4-16 43 Humboldt 1.5 mi. N of Luffenholtz Beach. Comment
  HSC4107  Cerastium glomeratum David K. Smith 1968-11-20 81 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  UC62197  Ceratophyllum demersum W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  CAS-BOT-BC400144  Ceratophyllum demersum Henry M. Pollard 1946-8-16 s.n. Humboldt Pond near Harley place, Orleans region Comment
  CAS-BOT-BC179477  Cercis occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopo Valley Comment
  CAS-BOT-BC179479  Cercis occidentalis Marcus E. A M Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. Comment
  HSC2136  Cercis occidentalis Doris K. Kildale 1926-5-2 1909 Humboldt Willow Creek Comment
  HSC98195  Cercis occidentalis Francis Winter 1960-4-24 Humboldt 8 mi. W of Hoopa Indian Reservation, Bair Rd. 686 Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  CDA30234  Chamaesyce serpyllifolia M. K. Beyers, I. Shepardson 2009-9-13 236 Humboldt In dry portion of the eastern side of the Eel River, east of State Route 254 (Avenue of the Giants) and Highway 101. Just west of the unincorporated community of Shively. 0 Comment
  HSC55282  Chamaesyce serpyllifolia Overton, Butler 1979-8-2 12709 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC164837  Chamaesyce serpyllifolia Joseph P. Tracy 1911-7-9 3470 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  HSC49056  Chamerion angustifolium subsp. circumvagum Patricia Shesgreen 1978-8-2 124 Humboldt Arcata Community Forest, Arcata; 200 yds. N of field house on top of hill overlooking baseball field Comment
  UC423060  Chamerion angustifolium subsp. circumvagum Chesnut and Drew 1888-7-15 Humboldt Arcata Comment
  JEPS39308  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1927-7-3 12360 Humboldt Weott South Fork Eel River Comment
  CDA3058  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  UCR123948  Chenopodium botrys George K. Helmkamp, E. A. Helmkamp 2001-7-8 6989 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
  POM225759  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove, south fork of Eel River. Comment
  RSA53850  Chenopodium botrys H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC102564  Chimaphila umbellata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1551 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC72793  Chimaphila umbellata M. A. Baker 1980-6-16 1925 Humboldt Near Monks Camp. 1097 Comment
  UCR48601  Chrysanthemum leucanthemum R. D. Goeden, Don W. Ricker 1987-9-2 870902- 19 Humboldt Loleta, along Cannibal Road 8 Comment
  HSC98785  Chrysolepis chrysophylla var. chrysophylla Cara Witte 2007-9-14 649 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET7712239  Chrysopsis oregona Chesnut, Drew 1888-7-21 Humboldt S. Fork Mtn. Comment
  HSC36262  Cicuta douglasii John Rehling 1974-8-20 24 Humboldt Big Lagoon Bog Comment
  UC642264  Cicuta douglasii Joseph P. Tracy 1938-9-25 16169 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC38627  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-18 - 1101 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  HSC54023  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-12 7185 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC98713  Circaea alpina subsp. pacifica Cara Witte 2007-7-20 567 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC16248  Circaea alpina subsp. pacifica B. D. Rogers, William J. Ferlatte 1966-6-15 2095 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  JEPS79874  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  POM225838  Cirsium arvense J. T. Howell 1931-6-17 6724 Humboldt Redwood Highway, 1.5 miles north of Orick Comment
  UC169293  Cirsium brevistylum Joseph P. Tracy 1912-7-14 3748 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  RSA0070620  Cirsium douglasii var. breweri J. M. Tucker 1948-9-3 1850 Humboldt On Horse Mountain at junction of road to Grouse Mountain and road to Horse Mountain Mine. 1463 Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  UCD130620  Cirsium douglasii var. douglasii Collector Unknown Date Unknown s.n. Humboldt Horse Mt. Comment
  UC668208  Cirsium occidentale var. candidissimum Joseph P. Tracy 1938-7-4 15990 Humboldt Valley of South Yaeger Creek 762 Comment
  SBBG113460  Cirsium occidentale var. venustum B. Villegas 1998-8-5 Humboldt near Berry Summit on Titlow Hill Rd, 3.9 mi S of US Hwy 299 Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  HSC76337  Cirsium vulgare Michael Ericksen 1981-8-20 1076 Humboldt Near Van Duzen Public Campground 1000 Comment
  UC183664  Clarkia amoena Joseph P. Tracy 1912-7-21 3758 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC160968  Clarkia amoena subsp. amoena C. Hart Merriam 1922-6-1 s.n. Humboldt Fortuna Comment
  UC20297  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1363 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC183772  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1912-7-31 3907 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC594153  Clarkia gracilis subsp. gracilis S. K. Harris, J. P. Tracy 1936-6-10 3261 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  OBI36368  Clarkia purpurea subsp. quadrivulnera David J. Keil 1983-7-1 17270 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  UC1196983  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-7-4 3730 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC172513  Clarkia purpurea subsp. quadrivulnera Mrs. H. C. Cantelow 1940-7-6 s.n. Humboldt Near Dinsmore's Comment
  UC1196987  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2784 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  UC160994  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1911-7-5 3307 Humboldt near mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges 182 Comment
  UC198877  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew July 1888 Humboldt Campbell's Comment
  HSC38093  Clarkia rhomboidea Thomas W. Nelson, James Nelson 1976-5-30 2614 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC668286  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt 2 mi se Devil's Hole; Trinity Summit 1524 Comment
  JEPS17215  Claytonia cordifolia Joseph P. Tracy 1932-6-15 10583 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC70775  Claytonia parviflora subsp. parviflora R. York 1980-5-17 552 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC440091  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 367 Humboldt Horse Mountain, ca. 150 m N. of the junction between Forest Rds. 5N10 and 6N01. On the road shoulder of 5N10. 1371 Comment
  UCD100844  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1316 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD100848  Claytonia rubra subsp. depressa Linda M. Barker 1976-4-13 1378 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC64193  Claytonia sibirica J. O. Sawyer, M. A. Ericksen 1979-6-23 3375 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  SD88533  Claytonia sibirica Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  UC162974  Claytonia sibirica Joseph P. Tracy 1907-5-1 2557 Humboldt Eureka; Northern Coast Region 0 Comment
  UC177197  Claytonia sibirica Joseph P. Tracy 1912-5-11 3608 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UCR86959  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest; Hwy 299, 5.7 mi west of Willow Creek at E-fork camp ground 730 Comment
  CAS-BOT-BC443904  Claytonia sibirica D. E. Breedlove 1961-7-4 663 Humboldt On north bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  RSA0059513  Claytonia sibirica H. M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  UC1173720  Clematis lasiantha Joseph P. Tracy 1939-4-29 16229 Humboldt bluffs opposite mouth of Hors-Linto Creek (Trinity R.); Trinity R. 152 Comment
  CAS-BOT-BC499338  Clintonia andrewsiana Doris K. Kildale 1928-6-10 5083 Humboldt Strongs Station, Van Duzen River Comment
  UC1197663  Clintonia andrewsiana Joseph P. Tracy 1901-8-1 1238 Humboldt e of Rohnerville 152 Comment
  UC1537231  Clintonia andrewsiana Gordon H. True Jr. 1936-5-12 469 Humboldt 5 mi n of Kneeland 457 Comment
  CAS-BOT-BC238027  Collinsia Doris Kildale Gillespie 1931-6-7 10608 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  JEPS6293  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  SBBG27286  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  UC41802  Collinsia grandiflora W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  SEINET12268895  Collinsia grandiflora H. P. Chandler 1901-1 1251 Humboldt Redwood Belt, North Coast Ranges 457 Comment
  UC1196766  Collinsia grandiflora Joseph P. Tracy 1933-6-13 12572 Humboldt w Hoopa (near summit of Hoopa Mtn on rd from Hoopa to Bair's); Hoopa Mtn 1066 Comment
  HSC40014  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1976-7-1 2915 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  HSC65475  Collinsia linearis Gail Newton 1980-6-24 580 Humboldt Near Ladder Rock 1570 Comment
  HSC73177  Collinsia linearis M. A. Baker 1980-5-18 1335 Humboldt Near Black Mtn. 792 Comment
  CHSC57457  Collinsia parviflora L. P. Janeway 1984-6-23 896 Humboldt Titlow Hill. 1478 Comment
  HSC48759  Collinsia parviflora Brad Klipfel 1973-6-10 73 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS6217  Collinsia parviflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 8959 Humboldt near McKay Camp (openings in fir forest); Northern Coast Ranges, South Fork Mtn 1676 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
  HSC24394  Collinsia rattanii J. O. Sawyer 1970-6-24 2281 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC38493  Collinsia rattanii D. E. Anderson, J. P. Smith 1971-6-18 - 1093 Humboldt Horse Mtn. Comment
  UC147870  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1904-4-17 2012 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS7057  Collinsia torreyi var. wrightii Joseph P. Tracy 1935-7-28 14314 Humboldt head of Devil's Hole Trinity Summit 1828 Comment
  HSC56008  Collomia heterophylla Overton, Butler 1979-7-31 11489 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC70399  Collomia heterophylla M. A. Baker 1980-6-7 1851 Humboldt Near Ammon Creek 115 Comment
  SEINET7963087 Image available Collomia heterophylla S. K. Harris 1942-1 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E 600 Comment
  HSC32312  Collomia tracyi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5660 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  SEINET10317252 Image available Collomia tracyi M. A. Baker 1980-6-28 Humboldt Trail to Mad River Buttes Comment
  HSC36297  Comarum palustre Dana A. Page 1973-11-24 Humboldt Crannell Rd. 0.5 mi. E of Hwy. 101, McKinleyville Comment
  HSC38916  Conium maculatum J. P. Smith 1973-5-26 6794 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC6349  Convolvulus arvensis H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  JEPS64327  Corallorhiza maculata Virginia P. Fox July, 1919 Humboldt Bald Mountain Comment
  UC14966  Corallorhiza maculata Harley P. Chandler June, 1901 1395 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC16586  Corallorhiza maculata Doris K. Kildale 1926-5-2 1845 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  HSC97979  Corallorhiza mertensiana Cara Witte 2007-7-8 428 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  UC1196454  Corallorhiza mertensiana Joseph P. Tracy 1947-7-5 17826 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1196458  Corallorhiza mertensiana Joseph P. Tracy 1926-6-6 7580 Humboldt Hoopa Mountain Northern Coast Ranges (near summit on road from Hoopa to Bair's) 1066 Comment
  UC1196460  Corallorhiza mertensiana Joseph P. Tracy 1918-6-23 4960 Humboldt near Boynton Prairie; Northern Coast Ranges, around Humboldt Bay 304 Comment
  HSC48977  Cordylanthus maritimus subsp. palustris Jim Bartel 1979-7-17 Humboldt Tributary to Butcher's Slough, within proposed Arcata Marsh Enhancement Project, adjacent to Northwestern Pacific Railroad. 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
  HSC90781  Cordylanthus maritimus subsp. palustris Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  JEPS55932  Cordylanthus maritimus subsp. palustris T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-7-3 6455 Humboldt Coastal Salt Marsh, ne edge Arcata Bay Comment
  UC604620  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders salt marsh at Fields Landing; Northern Coast Region, around Humboldt Bay 3 Comment
  JEPS15869  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  RSA46901  Cornus californica Doris K. Kildale 1925-6-27 769 Humboldt Yager - near mouth. Comment
  JEPS79878  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain at Lake Prairie Bald Mountain 1066 Comment
  HSC104440  Cornus canadensis Cheri Sanville, Bianca Hayashi Jun 2012 Humboldt North of Snow Camp Mountain 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
  UC154053  Cornus sericea subsp. sericea Joseph P. Tracy 1901-8-2 1247 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  JEPS50175  Cornus sessilis W. L. Jepson 1902-7-11 2014 Humboldt river bank of S. Fork Trinity R., Martin's Ranch S. Fork Trinity R., Martin's Ranch Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  UC902052  Corylus californica Joseph P. Tracy 1949-8-7 18435 Humboldt Trinity Summit, near Box Camp 1463 Comment
  HSC40987  Corylus cornuta subsp. californica Thomas W. Nelson, Jane P. Nelson 1977-7-1 3561 Humboldt Along fork of Blanket Creek 1463 Comment
  RSA20962  Corylus cornuta var. californica C. B. Wolf 1937-9-13 9337 Humboldt North Coast Range, summit of Grouse Mt. 1645 Comment
  RSA729895  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast). 10 Comment
  HSC5421  Cotula australis D. E. Anderson 1963-3-16 2388 Humboldt At foot of Scotia Bluffs Comment
  HSC5428  Cotula coronopifolia John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  HSC43416  Cotula coronopifolia R. Sutherland 1978-2-18 5 .18278 Humboldt S side mouth of Mattole River 8 Comment
  RSA246787  Cotula coronopifolia R. F. Thorne, Percy C. Everett 1965-8-8 35272 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  CAS-BOT-BC290585  Crepis capillaris Doris K. Kildale 1927-6-25 3540 Humboldt Shelter Cove Comment
  JEPS89545  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy. 101 near mouth of Tom Creek (Big Lagoon); N. Coast Ranges, Big Lagoon 3 Comment
  UC1409183  Crepis capillaris Robert F. Thorne and P. Everett 1965-8-8 35236 Humboldt Eureka; n edge, e of Hwy 101 4 Comment
  UC1103234  Crypsis vaginiflora Joseph P. Tracy 1931-9-7 9668 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC102928  Cryptantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 900 Humboldt Patterson Meadows 1566 Comment
  SEINET12280860  Cryptantha milobakeri J. P. Tracy, Harris, S. K. 1942-1 17221 Humboldt E side of Hoopa Valley, hillside Comment
  UC175783  Cryptantha torreyana Joseph P. Tracy 1912-6-9 3655 Humboldt Alton Northern Coast Region 30 Comment
  UC525598  Cryptantha torreyana Joseph P. Tracy 1930-6-15 8751 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  JEPS39837  Cupressus lawsoniana W. L. Jepson 1902-6 2131 Humboldt Three Creeks to summit of ridge (on grade to Redwood Creek) 914 Comment
  RSA144007  Cuscuta campestris P. H. Raven 1961-8-22 16577 Humboldt Chileno Valley Comment
  HSC63843  Cuscuta occidentalis M. Baker 1979-6-26 913 Humboldt Comment
  JEPS14234  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide on Van Duzen River, Northern Coast Ranges Van Duzen River; Northern Coast Ranges, , Blue Slide 91 Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  HSC3642  Cynoglossum grande Francis Winter 1960-4-23 Humboldt 1.5 mi. E of Korbel, on Korbel-Maple Creek Rd. 61 Comment
  UC1222261  Cynoglossum grande Joseph P. Tracy 1950-5-7 18647 Humboldt ca. 5 mi. n. Bridgeville (on rd. to S. Yager Valley) Comment
  SEINET200580  Cynoglossum occidentale J. P. Tracy 1930-7-10 8871 Humboldt Brannan Mtn 1219 Comment
  UCD60128  Cynosurus cristatus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1195 Humboldt Southern outskirts of Eureka. Comment
  CAS-BOT-BC190376  Cynosurus echinatus David D. Keck 1948-7-1 5977 Humboldt Northeast end of Big Lagood [Lagoon]. Comment
  UC1103245  Cynosurus echinatus Joseph P. Tracy 1947-6-28 17753 Humboldt Larrabee Valley 731 Comment
  UCR45822  Cynosurus echinatus Kenneth Clark 1980-4-18 579 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 122 Comment
  SEINET3909435  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 4990 Humboldt The Mad River above the Fish Hatchery.; 0 Comment
  UC1103651  Cyperus squarrosus Joseph P. Tracy 1935-5-30 13918 Humboldt Trinity R. Valley at Willow Creek (in old Clover Flat Mine workings); Trinity R. Valley, Clover Flat Mine 152 Comment
  UC1196445  Cypripedium montanum D. F. Young 1924-4-26 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM66966  Cytisus monspessulanus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC14674  Cytisus scoparius W. R. Brigham 1962-5-20 20 Humboldt End of old Hwy. 101, N of Big Lagoon Rd. Comment
  HSC34813  Dactylis glomerata Dryden 1975-4-20 122 Humboldt Arcata 0 Comment
  CAS-BOT-BC189737  Danthonia californica Joseph P. Tracy 1932-7-10 10392 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  CAS-BOT-BC189739  Danthonia californica Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward. 106 Comment
  UC1056068  Danthonia californica var. americana J. I. Mallory 1955-6-7 112 Humboldt Luke Prairie Quad 29-B-3 (n end) 350 Comment
  HSC58817  Danthonia intermedia subsp. intermedia G. L. Clifton, Griswold 1979-8-1 12076 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC204116  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  SBBG5180  Daucus pusillus H. and M. Dearing 1939-5-25 3442 Humboldt sand dunes near Samoa Comment
  UC154246  Daucus pusillus Joseph P. Tracy 1909-8-1 3057 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCSB15507  Daucus pusillus 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC100617  Delphinium Carl C. Marshall Apr 1886 187 Humboldt Vicinity of Humboldt Bay. Comment
  SEINET12104065  Delphinium decorum F. H. Utech 1988-5-23 88 -283 Humboldt along CA 36 from Bridgeville enroute to Dinsmore 800 Comment
  CAS-BOT-BC33215  Delphinium decorum subsp. tracyi Harold Ernest Parks; Joseph Prince Tracy 1930-3-25 789 Humboldt Laribee Valley 914 Comment
  CAS-BOT-BC9026  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills, 2 miles up Williams Ridge Road. Comment
  CAS-BOT-BC9031  Delphinium decorum subsp. tracyi Doris K. Kildale 1926-4-18 1773 Humboldt McCelellan Mountain 822 Comment
  UC1196175  Delphinium glaucum Doris Kildale 1925-8-1 Humboldt Trinity Summit Comment
  HSC24965  Delphinium hesperium R. Spellenberg 1965-6-14 1139 Humboldt 13 mi. W of Willow Creek along Hwy. 299 Comment
  UC1225748  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222578  Delphinium nudicaule Joseph P. Tracy 1950-6-15 18815 Humboldt ne side of ridge Mail Ridge, Huestis Rock (7 mi ne of Harris) Comment
  HSC95789  Delphinium nudicaule Kevin Thomas 2004-3-28 9 Humboldt Horse Linto Creek Campground Comment
  UC1225744  Delphinium nudicaule Joseph P. Tracy 1946-6-15 17565 Humboldt lower slopes Horse Mountain 1066 Comment
  HSC73733  Delphinium nuttallianum M. A. Baker 1980-7-19 3019 Humboldt Near Bret Hole. 1814 Comment
  RSA20971  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt Kneeland Prairie; North Coast Range. 823 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
  HSC37429  Delphinium trolliifolium B. R. Templeton 1962-5-24 Humboldt W slope of Berry Summit Comment
  UCSC000008  Deschampsia cespitosa Randall Morgan 2005-6-24 s.n. Humboldt 1 mi W of Bayside - Eureka Comment
  UC1103219  Deschampsia danthonioides Joseph P. Tracy 1914-5-30 4477 Humboldt Alton Northern Coast Ranges, Alton 30 Comment
  CAS-BOT-BC201779  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  CAS-BOT-BC201781  Deschampsia elongata Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  HSC102190  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1104 Humboldt Andy's Camp 1564 Comment
  HSC75510  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC9612  Deschampsia elongata E. W. Styskel 1964-5-10 86 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  HSC99038  Deschampsia elongata Cara Witte 2007-6-13 263 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  UC1541537  Deschampsia elongata Harold E. Parks September 1928 172 Humboldt Big Lagoon Comment
  HSC8603  Deschampsia elongata D. W. C. 1956-5-29 13 Humboldt Mattole- Rio Del -Atwell Creek Comment
  HSC22052  Dicentra formosa B. D. Rogers, D. E. Anderson 1965-4-1 414 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  UC1362291  Dicentra formosa Kingsley R. Stern 1964-6-13 2107 Humboldt ca 2 mi s Miranda (on e side of U.S. Highway 101, ca 50 yds n of Fish Creek) Comment
  CAS-BOT-BC402413  Dicentra formosa subsp. formosa J. Cromwell; A. Thoele; J. Schneider 1994-5-6 046 Humboldt Intersection of Hwy. 299 and Redwood Valley Rd. 609 Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  CAS-BOT-BC209195  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1925-7-5 7168 Humboldt High Prairie, on Bold Mountain 1066 Comment
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  UC275547  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC146195  Dichelostemma capitatum Joseph P. Tracy 1908-6-9 2674 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC483665  Dichelostemma capitatum Doris K. Kildale 1927-4-17 3097 Humboldt Breeland Bridge 1/2 mile west of Garberville 114 Comment
  UC1222683  Dichelostemma capitatum Joseph P. Tracy 1951-5-20 19404 Humboldt toward Ashfield Butte; Kneeland Prairie Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC99667  Dichelostemma capitatum subsp. capitatum Steven Lee 2004-4-25 24 Humboldt South Fork Rd. from Hwy. 299 to Co. Rd. 341, 1/8 mi. down river access trail at end of rd. Comment
  UCD139216  Dichelostemma capitatum subsp. capitatum K. Esau 1934-5-7 s.n. Humboldt above Fort Seward. 457 Comment
  SD211495  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just West of Berry Summit on Highway 299 914 Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  HSC38087  Dichelostemma ida-maia Thomas W. Nelson, Jane P. Nelson 1976-5-30 2608 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC103003  Digitalis purpurea J. P. Smith 2014-5-26 13842 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 30 Comment
  HSC23713  Digitalis purpurea Tim Baroni 1971-6-25 61 Humboldt 8 mi. E of Petrolia Comment
  SEINET8733128 Image available Diplacus aurantiacus H. E. Parks, S. T. Parks 1951-1 s.n. Humboldt Along bay shore near landing. Trinidad. Comment
  CHSC94953  Disporum smithii K. Lang; J. Lang 2005-3-16 25 Humboldt Trinidad, N. California coast. 51 Comment
  HSC30147  Dodecatheon hendersonii A. M. Montalvo, J. D. Ackerman 1974-4-14 173 Humboldt Near Gray's Falls, Trinity River. Gray's Falls Campground Comment
  UC249685  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River); Northern Coast Ranges, Van Duzen River bar 30 Comment
  CAS-BOT-BC401536  Drosera rotundifolia L. B. Kildale 1930-7-11 s.n. Humboldt Snow Camp, head of Redwood Creek Comment
  RSA0011669  Drosera rotundifolia Patricia Wilder 1968-8-21 4380 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC35347  Drymocallis glabrata A. M. Montalvo, J. D. Ackerman 1975-6-22 480 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  CAS-BOT-BC159613  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1929-5-26 9136 Humboldt Klamath River at Orleans 152 Comment
  HSC76190  Drymocallis glandulosa var. reflexa Overton, Butler 1979-7-24 9773 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  RSA21039  Drymocallis glandulosa var. wrangelliana Carl B. Wolf 1937-6-19 8908 Humboldt Van Duzen River at Dunns Mill, 5 miles below Bridgeville. 91 Comment
  HSC40775  Drymocallis hansenii Thomas W. Nelson 1976-7-9 3012 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  CAS-BOT-BC428296  Dudleya farinosa A. A. Heller 1924-7-25 13886 Humboldt At Agate Beach near Trinidad. Comment
  UC1103628  Dulichium arundinaceum Joseph P. Tracy 1937-8-12 15623 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC98715  Dysphania botrys Cara Witte 2007-8-1 617 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/4 mile east of intersection with Friday Camp. 1297 Comment
  CDA30189  Echinochloa crus-galli M. K. Beyers, I. Sheperdson 2009-9-13 239 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
  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
  UCD60816  Echinochloa crus-galli Joseph P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  UC1100621  Eleocharis acicularis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1243 Humboldt town of Blue Lale Mad River (marshy pond on s side) Comment
  HSC69758  Eleocharis macrostachya Thomas W. Nelson 1977-9-22 3749 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  RSA53823  Eleocharis obtusa var. engelmannii Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC7346  Eleocharis parvula D. E. Anderson 1961-9-9 1791 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon Comment
  OBI37800  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats rd Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  HSC97930  Elymus glaucus subsp. glaucus Cara Witte 2007-6-19 295 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1220 Comment
  UC1103475  Elymus glaucus subsp. virescens Joseph P. Tracy 1938-6-17 15959 Humboldt s point of Cape (near ocean shore); Cape Mendocino 3 Comment
  UC682043  Elymus glaucus subsp. virescens G. L. Stebbins Jr. and G. L. Church 1941-5-26 3106 Humboldt just n Little River (s of Trinidad, bluff facing sea) Comment
  POM267994  Elymus trachycaulus subsp. trachycaulus D. D. Keck 1944-7-11 5491 Humboldt 3 miles northeast of Capetown. 152 Comment
  UC1103470  Elytrigia repens Joseph P. Tracy 1940-10-5 16751 Humboldt Trinidad; foot of coast bluff 6 Comment
  JEPS31519  Epilobium brachycarpum Joseph P. Tracy 1933-8-30 13034 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC183699  Epilobium brachycarpum Joseph P. Tracy 1912-7-26 3827 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562418  Epilobium brachycarpum Joseph P. Tracy 1933-8-30 13034 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC64759  Epilobium brachycarpum Bruce Gordon 1978-8-8 125 Humboldt Redwood National Park, 40 m SW of Bald Hills Rd. about .6 mi. NW of junction of Bald Hills Rd. and K & K Rd. 716 Comment
  HSC99054  Epilobium brachycarpum Cara Witte 2008-7-30 979 Humboldt National Forest 1. 2 miles north of intersection with Forest Service Road 4N09. 1267 Comment
  HSC74754  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-6 2398 Humboldt Near Humbug Creek 1256 Comment
  UC203989  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC549761  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1932-7-15 10575 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC99438  Epilobium ciliatum subsp. glandulosum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 88 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  RSA89767  Epilobium ciliatum subsp. watsonii P. A. Munz 1954-7-25 19875 Humboldt Near dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC98058  Epilobium densiflorum Cara Witte 2007-7-17 543 Humboldt White Oak Opening 1257 Comment
  UC562510  Epilobium hallianum Joseph P. Tracy 1933-7-25 12853 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  BLMAR138  Epilobium minutum Donald Hazlett 1994-6-7 138 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC44405  Epilobium minutum R. York 1978-5-6 157 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC594236  Epilobium minutum S. K. Harris and J. P. Tracy 1936-6-10 3263 Humboldt hills w South Fork of the Trinity River (near river mouth) 640 Comment
  SEINET10632319  Epilobium oreganum Joseph P. Tracy 1932-7-16 Tracy 1061 Humboldt Trinity Summit, Corral Prairie 1500 Comment
  UC429313  Epipactis gigantea P. E. Goddard 1907-7-15 #b 125 Humboldt Van Duzen Mad River (sunny side of river) Comment
  CAS-BOT-BC57106  Equisetum X ferrissii Henry M. Pollard 1946-8-31 s.n. Humboldt Near Wilson Creek, Orleans Mt. Comment
  SEINET200606 Image available Equisetum hyemale J. P. Tracy 1926-9-6 7795 Humboldt Trinity River Valley near the S Fork 183 Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  RSA275366  Equisetum hyemale var. affine James Payne Smith, Advanced Plant Taxonomy Class 1971-10-9 4996 Humboldt Mad River above the Fish Hatchery. Comment
  MACF015742  Equisetum hyemale var. robustum F. A. MacFadden 1935-6-22 13769 Humboldt River bank, near Wrott, Humboldt Co. California Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  HSC79438  Equisetum telmateia subsp. braunii Kenneth Clark 1980-6-14 699 Humboldt Shelter Cove, W slope above Dead Man's Gulch 91 Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 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
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  RSA783323  Erica lusitanica R. R. Halse 2010-3-25 7855 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  UC205183  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit (open places in shasta fir belt) 1889 Comment
  UC1792475  Erigeron Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road 49N38 1 mile from junction with Forest Service Road 1. 1481 Comment
  UC581712  Erigeron aliceae Joseph P. Tracy 1933-8-30 13038 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1615 Comment
  POM256480  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain, near McKay Camp. 1677 Comment
  RSA93185  Erigeron biolettii F. W. Peirson 1923-7-9 3877 Humboldt Humboldt County State Park Comment
  JEPS21937  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  HSC33818  Erigeron foliosus var. mendocinus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1917 Humboldt Growing on moist rock wall beside Hwy 36 W of Grizzley Creek Comment
  SBBG52999  Erigeron glaucus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  HSC26467  Erigeron glaucus T. O. Osborne 1970-5-22 28 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  HSC93533  Erigeron glaucus Gordon Leppig 1998-6-22 840 Humboldt Dry Lagoon State Park 2 Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  HSC58056  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-1 11926 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC81688  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  UC127577  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UCD131462  Erigeron philadelphicus var. philadelphicus K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC259163  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCR122372  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  CAS-BOT-BC259286  Eriogonum lobbii Dave Imper 1985-7-30 s.n. Humboldt Six Rivers National Forest. N of Orleans Mountain 1737 Comment
  UC55505  Eriogonum luteolum var. luteolum P. E. Goddard 1901-7-12 82 Humboldt Hupa Comment
  UC1198108  Eriogonum luteolum var. luteolum Joseph P. Tracy 1930-8-3 9142 Humboldt along Van Duzen River opposite Buck Mountain; Van Duzen River 762 Comment
  CAS-BOT-BC261490  Eriogonum nudum var. nudum A. A. Heller 1924-7-20 13863 Humboldt Along the Eel River at Phillipsville Comment
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 Comment
  UC203955  Eriogonum nudum var. nudum Joseph P. Tracy 1918-7-3 4987 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range, Wilder Ridge 762 Comment
  JEPS56604  Eriogonum nudum var. oblongifolium W. L. Jepson 1932-8-8 16484 Humboldt Grasshopper Peak, Canoe Creek 1066 Comment
  SD22520  Eriogonum nudum var. oblongifolium Susan G. Stokes 1932-7-13 Humboldt From Garberville to Eureka Comment
  CAS-BOT-BC269862  Eriogonum nudum var. pubiflorum Doris K. Kildale 1926-6-9 2144 Humboldt Horse Mountain 1219 Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  HSC54736  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-26 10179 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC55177  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12182 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  SEINET3841343 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-28 14329 Humboldt Trinity Summit, Head of Devil's Hole 1829 Comment
  HSC60053  Eriophyllum lanatum M. A. Baker 1978-5-6 501 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC5581  Eriophyllum lanatum var. achilleoides H. E. Parks, J. P. Tracy 1934-6-27 11063 Humboldt Grouse Mtn. 1433 Comment
  UC1199140  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1933-7-25 12875 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC169042  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1912-7-26 3837 Humboldt Kneeland Prairie Northern Coast ranges, Kneeland Prairie 762 Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  UC165841  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1906-7-15 2539 Humboldt Table Bluff Northern Coast, Region about Humboldt Bay, Table Bluff 0 Comment
  RSA168816  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1223128  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  POM265904  Eriophyllum lanatum var. lanceolatum R. C. Rollins, Lincoln Constance 1942-5-12 2890 Humboldt Klamath River 12 miles north of Weitchpee 122 Comment
  UC34184  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt Klamath River North Coast Ranges 243 Comment
  UC1198961  Erodium botrys Joseph P. Tracy 1933-5-20 12239 Humboldt s of point of Cape Mendocino; Cape Mendocino 3 Comment
  HSC60055  Erysimum capitatum var. capitatum M. A. Baker 1978-5-6 493 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC6760  Erysimum capitatum var. capitatum Francis Winter 1960-4-24 Humboldt 2 mi. SE of Burnt Ranch, Hoopa Indian Reservation 381 Comment
  HSC57645  Erysimum perenne G. L. Clifton, Terry Griswold 1979-7-25 10812 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA168934  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmores. 762 Comment
  SEINET3886103  Erythronium californicum Eric May, Susan Carter 1987-3-29 115 Humboldt Gray Falls Campground; 10 mi E of Willow Creek on Hwy 299 along Trinity River. N end loop road in campground.; 0 244 Comment
  CAS-BOT-BC133333  Erythronium revolutum Doris K. Kildale; L. B. Kildale 1930-5-11 9536 Humboldt [Wire Grass] Wiregrass Prairie - The Bald Hills 792 Comment
  CHSC110754  Erythronium revolutum Dean Wm. Taylor 2011-5-4 21120 Humboldt South Coast Ranges. Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  JEPS61876  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1197643  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC104346  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 5 Humboldt Kneeland 854 Comment
  CAS-BOT-BC403035  Eschscholzia californica Doris K. Kildale 1927-6-25 3548 Humboldt Shelter Cove Comment
  HSC23676  Eschscholzia californica Tim Baroni 1971-7-6 111 Humboldt 1 mi. S of Ferndale on the Mattole Rd. Comment
  RSA167199  Eucephalus glabratus Joseph P. Tracy 1941-8-24 17043 Humboldt South Fork Mountain, near McKay Camp Comment
  SEINET3121248 Image available Eucephalus glabratus Joseph P. Tracy 1919-1 5304 Humboldt Along road between Three Creeks and mouth of Willow Creek 914 Comment
  HSC5688  Euchiton gymnocephalus W. D. Stevens 1967-7-22 61 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  JEPS9605  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt in woods 3 mi. s.e. of business district Eureka 91 Comment
Read comments
May 24 2013
  JEPS51876  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt Bull Creek Region; South Fork Eel River 121 Comment
  NY263155  Euphorbia occidentalis V. K. Chesnut 1888-7-22 Humboldt Hy-Am-Pum (spelling?) Comment
  CAS-BOT-BC312207  Eurybia radulina Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC535703  Euthamia occidentalis Eleanor Armstrong 1934-8-16 1150 Humboldt Richardson Grove 121 Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  HSC73240  Festuca californica M. A. Baker 1980-5-18 1321 Humboldt Near Black Mtn. 1006 Comment
  RSA121321  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1103703  Festuca elmeri Joseph P. Tracy 1942-5-16 17339 Humboldt Garberville 152 Comment
  HSC63852  Festuca idahoensis M. A. Baker 1979-6-27 916 Humboldt S facing ridgeside Comment
Read comments
Feb 15 2013
  HSC76542  Festuca idahoensis Denis Kearns 1981-7-6 82 Humboldt Near Mosquito Lake 1256 Comment
  RSA256712  Festuca occidentalis D. E. Anderson 1972-6-20 5723 B Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC53591  Festuca occidentalis H. P. Chandler 1901-1 1775 a Humboldt Humboldt Bay Comment
  SEINET10559307  Festuca occidentalis Victor Duran 1933-5-11 Duran 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  SEINET10963562  Festuca subuliflora Huron H. Smith 1911-1 Smith 3915 Humboldt Comment
  HSC26395  Fragaria chiloensis T. O. Osborne 1970-9-16 35 Humboldt Trinidad Bay, Prisoner Rock Comment
  CAS-BOT-BC453516  Fragaria chiloensis W. R. Dudley 1899-6-1 s.n. Humboldt Pennisula of Eureka Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  CAS-BOT-BC52731  Frangula californica subsp. californica Doris K. Kildale 1927-6-25 3568 Humboldt Shelter Cove Comment
  CAS-BOT-BC53405  Frangula californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt Lord Ellis Road, 9 mi. above Willow Creek on grade from Willow Creek to Blue Lake 304 Comment
  CAS-BOT-BC59997  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  HSC63001  Frangula purshiana David Wheeler 1979-5-17 114 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  CAS-BOT-BC59996  Frangula purshiana C. B. Wolf; B. D. Stark 1933-9-24 5494 Humboldt W. slope Sierra Nevada. No. side of Bear Valley. 1371 Comment
  JEPS44073  Fraxinus latifolia Lincoln Constance 1934-6-11 843 Humboldt n Dyerville Flat, trail along e bank of South Fork of Eel River South Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC136027  Fritillaria affinis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC136029  Fritillaria affinis Doris K. Kildale 1928-5-19 5225 Humboldt Chalk Mountain Comment
  UC15015  Fritillaria affinis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  HSC79054  Fritillaria purdyi D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of Friday Camp Rd., 0.25 mi. N of junction with 6N01 1220 Comment
  CHSC80006  Fumaria officinalis Gordon Leppig; Sylvia Leppig 2000-12-7 1523 Humboldt Arcata, 7th and I Street just west of Post Office, UTM zone 10, 4525N, 408E. 6 Comment
  JEPS6480  Galium ambiguum subsp. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC99827  Galium aparine Jimerson, Pageau 1979-6-13 541 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  HSC57329  Galium bolanderi Overton, Butler 1979-7-25 9822 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  SEINET10876857  Galium californicum subsp. californicum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13009 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  UCD121759  Galium divaricatum Thomas W. Nelson; Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek. Comment
  UC176991  Galium muricatum Joseph P. Tracy 1913-6-21 4248 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  POM90778  Galium trifidum Chesnut, E. R. Drew 1888-7-8 s.n. Humboldt Near Campbell's. Comment
  CAS-BOT-BC303393  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta 60 Comment
  HSC104445  Gamochaeta ustulata Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 9 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC33077  Gamochaeta ustulata Thomas W. Nelson, Jim Ackerman 1974-5-14 1266 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  RSA638992  Gamochaeta ustulata R. F. Thorne 1974-7-29 45067 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC1199352  Gamochaeta ustulata Joseph P. Tracy 1918-7-6 5043 Humboldt South Fork of, near the Humboldt-Mendocino County line Eel River; Northern Coast Ranges, Eel River 152 Comment
  UC1196891  Garrya buxifolia Joseph P. Tracy 1933-7-11 12676 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC188540  Garrya elliptica Alice Eastwood 1907-4-21 18 Humboldt Port Trinidad Comment
  HSC62874  Garrya elliptica J. M. DiTomaso 1979-5-20 1059 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  UC1215539  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt W. M. Lanphere's ranch 9 Comment
  UC1550379  Garrya elliptica Gerald V. Dahling Jun 1973 1229 Humboldt about 10 mi n Trinidad (along Highway 101) Comment
  UCD121099  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  CAS-BOT-BC182148  Garrya fremontii L. B. Kildale 1930-8-10 10534 Humboldt Snow Camp, head of Redwood Creek Comment
  RSA134149  Garrya fremontii Percy C. Everett, E. K. Balls 1959-10-24 23952 Humboldt 2.8 mi SW from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 Comment
  UC1225768  Garrya fremontii Joseph P. Tracy 1939-1-14 1618 a Humboldt Willow Creek; Trinity River Valley 152 Comment
  UCSB4685  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek; within Hoppe Indian Reservation; upstream from Willow Creek Village. Comment
  HSC9992  Gastridium phleoides True Hoyle 1967-7-9 27967 Humboldt 2 mi. NW from the junction of Fickle Hill and Butler Valley Rds. 457 Comment
  UC1222635  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC58907  Gaultheria shallon Carl B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weithchpec. 304 Comment
  HSC54650  Gaultheria shallon Overton, Butler 1979-7-25 9853 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1585409  Gaultheria shallon R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 32 Humboldt w of Hoopa (just e of Pine Ridge Summit, Bair Road); Bair Road 970 Comment
  UC484078  Gaultheria shallon Carl B. Wolf 1930-10-30 Humboldt 4 mi s of Thorn (Old Coast Road); Old Coast Road 304 Comment
  UC535770  Gaultheria shallon Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  UCSB7320  Gaultheria shallon Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. N of Trinidad Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC1196968  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1926-6-27 7687 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  CAS-BOT-BC208029  Genista monspessulana C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC14676  Genista monspessulana Paul Shields 1953-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC15524  Genista monspessulana D. La Conte 1970-8-10 4 Humboldt Comment
  UCD105734  Genista monspessulana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC217411  Gentiana plurisetosa Doris K. Kildale 1925-8-17 1194 Humboldt Trinity Summit 1917 Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  POM210202  Gentiana sceptrum H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  RSA246869  Gentiana sceptrum Robert F. Thorne, P. C. Everett 1965-8-9 35288 Humboldt Big Lagoon. 3 Comment
  HSC8647  Geranium dissectum D. B. Bader 1963-4-1 39 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks 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
  HSC73711  Gilia capitata M. A. Baker 1980-7-15 2977 Humboldt Near Whiting Ridge. 1341 Comment
  HSC104327  Gilia capitata James Regan, Humboldt Redwood Co., LLC 2010-6-23 25 Humboldt Nanning Creek, east of Scotia 213 Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC52536  Gilia capitata subsp. capitata Mrs. M. H. Manning Humboldt Hupa Comment
  HSC95157  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt E side headwaters of Brushy Creek 800 Comment
  HSC95190  Gilia capitata subsp. pacifica Gordon Leppig 2002-6-25 1762 Humboldt Larabee Valley, Atwell Prairie 669 Comment
  UC427877  Gilia capitata subsp. pacifica H. E. Parks, J. P. Tracy 1930-5-25 793 Humboldt near Bridgeville; near Bridgeville Comment
  BLMAR67  Gilia millefoliata Jennifer Anthony-Wheeler 1994-5-18 67 Humboldt Samoa/Manilla, growing throughout dune mat in wetland area Comment
  HSC34612  Gilia millefoliata A. Montalvo 1975-5-24 274 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  JEPS16254 Image available Gilia millefoliata J. P. Tracy 1903-6-12 1921 Humboldt immediate vicinity Eureka; ; Eureka, Humboldt Co. 0 Comment
  UC1197907  Gilia millefoliata Joseph P. Tracy 1931-6-15 9583 Humboldt sandy ground along bay shore at Bucksport (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC266491  Githopsis diffusa L. R. Abrams 1918-6-16 7176 Humboldt Willow Creek Comment
  HSC100935  Githopsis specularioides Miss Handy Jun 1886 344 Humboldt Maple Cr. Comment
  HSC21499  Glehnia littoralis subsp. leiocarpa R. E. Hafenfeld 1965-5-9 56 Humboldt Junction of County Rd. and Gold Bluff Beach Rd. Comment
  RSA246750  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-7 35218 Humboldt Samoa Peninsula. 3 Comment
  HSC38427  Glyceria elata D. E. Anderson, J. P. Smith 1971-6-14 - 1049 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC58551  Glyceria elata Overton, Butler 1979-7-24 9812 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC74756  Glyceria elata Gail Newton 1981-8-6 2402 Humboldt Near Humbug Creek 1256 Comment
  CAS-BOT-BC282850  Glyceria striata Joseph P. Tracy 1925-7-5 7170 Humboldt Bald Mountain near High Prairie 1066 Comment
  HSC10089  Glyceria striata J. P. Tracy 1925-6-13 7086 Humboldt Eureka 0 Comment
  POM126108  Glyceria striata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 miles northwest of junction of Willow Creek with Trinity River, and near Beebe's Ranch. 915 Comment
  UC1103752  Glyceria striata Joseph P. Tracy 1926-5-22 7501 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  SD64115  Glycyrrhiza lepidota W. Bertsch 1953-7-30 224 Humboldt U. S. 101, Dyerville 60 Comment
  UC673068  Glycyrrhiza lepidota Joseph P. Tracy 1933-6-25 12626 Humboldt Camp Grant Eel River 60 Comment
  UC582517  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC38741  Goodyera oblongifolia J. D. Ackerman 1975-5-3 441 Humboldt Hwy. 299, 200 yds. E of Lord Ellis Summit, W of Blue Lake and Redwood Creek Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1196434  Goodyera oblongifolia Joseph P. Tracy 1949-8-7 18447 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 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
  UC582587  Gratiola ebracteata Joseph P. Tracy 1935-5-25 13840 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC304765  Grindelia hirsutula L. P. Janeway 1983-9-24 697 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground 3 Comment
  HSC37504  Grindelia hirsutula J. D. Ackerman 1975-8-2 613 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  HSC100434  Grindelia robusta Carl C. Marshall Sep 1886 253 Humboldt Marshes. Comment
  UCR48860  Grindelia stricta R. D. Goeden 1987-9-2 870902- 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  RSA638980  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-7 35204 Humboldt Samoa Peninsula. 0 Comment
  HSC57669  Hackelia micrantha G. L. Clifton, Griswold 1979-7-25 10854 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC525561  Hackelia micrantha Joseph P. Tracy 1932-7-16 10617 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC3687  Hastingsia alba H. N. Bolander 1860-1-1 6559 Humboldt Red Mountains Comment
  HSC99503  Helenium bigelovii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 163 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
  SEINET5711016  Helenium bigelovii Lowell E. Urbatsch 1990-1 6798 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the rd. to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this road (FS 7 NO4) travel 1.5 miles to another fork; continue on 7NO4N (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC36271  Helenium bolanderi John Rehling 1974-8-22 34 Humboldt Big Lagoon Bog along the dryer margins Comment
  CAS-BOT-BC309416  Helenium puberulum L. R. Abrams 1922-6-25 8232 Humboldt 2 mi south of Fortuna Comment
  RSA255769  Hemitomes congestum Gary D. Wallace 1973-7-11 1252 Humboldt Prairie Creek Redwoods St. Pk. north of Orick. SE of the residences across the road from park hdqrs. just in the treeline. Comment
  CAS-BOT-BC306079  Hemizonia congesta subsp. clevelandii W. R. Dudley 1899-6-29 s.n. Humboldt Bank of Eel River Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC310001  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-22 4752 Humboldt 11 miles from Blocksburg on road to Bridgeville Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  HSC71740  Hemizonia congesta subsp. tracyi M. A. Baker 1980-6-26 2420 Humboldt Near Sims Creek 610 Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC906656  Heracleum lanatum Joseph P. Tracy 1947-8-24 17915 Humboldt Trinity Summit near Box Camp; Trinity Summit 1524 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  BLMAR749  Heracleum maximum Kate McGrath 2015-7-13 748 Humboldt King range, strawberry rock grazing allotment 189 Comment
  HSC60360  Heracleum maximum Clark L. Miller 1979-5-13 1120 Humboldt N of Trinidad along Patricks Point Dr. Comment
  HSC76406  Heracleum maximum Denis Kearns 1981-7-23 428 Humboldt Near Whiteys Peak. 1524 Comment
  RSA453722  Heracleum maximum B. C. Templeton 1964-6-13 10181 Humboldt Along old 101 Highway to Trinidad Comment
  CAS-BOT-BC310180  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Northern Coast Region. At Humboldt Bay Comment
  HSC98193  Hesperocyparis macrocarpa Will Ferrand 2002-4-27 44 Humboldt HSU Campus, 100ft W of library 24 Comment
  UC146127  Hesperolinon micranthum Joseph P. Tracy 1908-6 2820 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  CAS-BOT-BC143655  Heteromeles arbutifolia Doris K. Kildale 1928-7-1 5315 Humboldt Klamath RIver at mouth of Bluff Creek Comment
  JEPS2487  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda South Fork of Eel River 121 Comment
  CAS-BOT-BC311053  Heterotheca oregona var. oregona John Thomas Howell 1936-8-29 12889 Humboldt Bluffs of Eel River, 11 miles n. of Garberville Comment
  HSC40008  Heuchera micrantha Thomas W. Nelson, Jane P. Nelson 1976-7-1 2904 Humboldt Along ridge N of Bear Creek. 1463 Comment
  HSC44341  Heuchera micrantha Brad Klipfel 1975-6-17 680 Humboldt Horse Mtn. Comment
  HSC20195  Heuchera micrantha J. F. Knezevich 1968-5-21 451 Humboldt 15 mi. E of jct. of Hwy. 299 with Hwy. 101, past Blue Lake Comment
  SEINET200860  Heuchera micrantha J. P. Tracy 2865 Humboldt Valley of Van Duzen River opposite Buck Mt 762 Comment
  CAS-BOT-BC425003  Heuchera micrantha var. micrantha Huron H. Smith 1911-6-6 3794 Humboldt Little River Jc. Comment
  HSC100438  Hieracium albiflorum Carl C. Marshall Jun 1886 259 Humboldt Near Hoopa. Comment
  CAS-BOT-BC316006  Hieracium nudicaule Henry M. Pollard 1943-8-1 s.n. Humboldt New Orleans Comment
  UC34196  Hieracium nudicaule Harley P. Chandler 1901-6-1 1489 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC34531  Hieracium nudicaule Chesnut and Drew 1888-7-21 Humboldt South Fork <???> Comment
  HSC44567  Hieracium scouleri Brad Klipfel 1973-7-15 185 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA183516  Hierochloe occidentalis G. N. Bos 1965-5-2 248 Humboldt 8 miles east of Korbel on Bald Mountain Road 793 Comment
  HSC28191  Hippuris vulgaris John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC10132  Holcus lanatus J. R. Eichelberger 1964-5-13 83 Humboldt 1/4 mile from U.S. 101 on the N side of the Mad River. Comment
  HSC33769  Holcus lanatus Lon Hall 1975-5-24 378 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC74670  Holcus lanatus Gail Newton 1981-8-5 2355 Humboldt Near Bug Creek, E Fork. 820 Comment
  SBBG83770  Holcus lanatus J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  SEINET181174 Image available Holcus lanatus Bassett Maguire, R Maguire; CB Maguire 1934-6-9 15059 Humboldt Clam Beach; 15 miles north of Eureka. Comment
  UC1103732  Holcus lanatus Joseph P. Tracy 1934-7-2 13295 Humboldt Trinidad 3 Comment
  CAS-BOT-BC149908  Holodiscus discolor Clarence R. Quick 1959-7-24 59 -26 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  UC1198702  Holodiscus discolor J. P. Tracy 1901-6-16 1150 Humboldt immediate vicinity of Eureka 0 Comment
  UCD113355  Holodiscus discolor J. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  HSC58667  Hordeum brachyantherum G. L. Clifton, Griswold 1979-8-1 12081 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC37518  Hordeum depressum J. D. Ackerman, A. M. Montalvo 1975-8-9 630 Humboldt Arcata, Hwy. 101 and Giuntoli Ln. Comment
  RSA87057  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt About Humboldt Bay, Mouth of Elk River. 3 Comment
  SEINET200844 Image available Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Mouth of Elk River. 3 Comment
  UC1103739  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1939-4-29 16262 Humboldt Orleans 121 Comment
  CAS-BOT-BC284893  Hordeum murinum subsp. leporinum Henry M. Pollard 1948-7-26 s.n. Humboldt Orleans Comment
  UC154227  Horkelia californica Joseph P. Tracy 1906-6-24 2503 Humboldt Region about Humboldt Bay (s slope of Humboldt Hill); Northern Coast Region, Humboldt Hill 152 Comment
  CAS-BOT-BC536626  Horkelia californica Milo S. Baker 1931-7-17 5409 Humboldt A few mile south of Eureka along Redwood Highway Comment
  CDA25952  Horkelia tridentata subsp. flavescens G. Levy, S. March 2005-6-24 15 Humboldt Northwestern California Comment
  HSC64261  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC98762  Hydrophyllum occidentale Cara Witte 2008-7-2 823 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  UC1239768  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-2 15403 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1762197  Hydrophyllum tenuipes H. E. Parks and Joseph P. Tracy 1949-6-25 11674 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  JEPS1640  Hydrophyllum tenuipes Milo S. Baker July, 1923 Humboldt Carlotta, probably about [Wilder's] but possibly near Dyerville Carlotta; North Coast trip, Carlotta Comment
  POM203702  Hypericum formosum var. scouleri I. L. Wiggins 1932-7-18 5886 Humboldt Boggy meadow between Arcata and Bayside Comment
  HSC57100  Hypericum perforatum Overton, Butler 1979-7-25 9832 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1193380  Hypericum perforatum R. H. Neuns 1950-6-12 121 Humboldt on Eel R. between Alder Point and Fort Seward; Quad. 29D2, Eel R. 152 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  HSC13845  Hypericum perforatum J. R. Lippincott 1967-7-16 6 Humboldt Near N Fork Mad River bridge 152 Comment
  UC169053  Hypochaeris glabra Joseph P. Tracy 1912-7-25 3812 Humboldt Kneeland Prairie 762 Comment
  HSC5864  Hypochaeris glabra Lincoln Constance 1934-5-24 639 Humboldt S Fork Eel River 122 Comment
  HSC37940  Hypochaeris radicata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC1199470  Hypochaeris radicata Joseph P. Tracy 1926-5-2 7422 Humboldt near the s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA246946  Hypochaeris radicata R. F. Thorne, P. C. Everett 1965-8-8 35235 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC206841  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  CAS-BOT-BC206842  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 1/2 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  RSA12528  Iliamna latibracteata Carl B. Wolf 1934-7-3 5909 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  RSA170251  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18525 Humboldt Willow Creek Canyon, along Trinity Hwy 762 Comment
  UC668130 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  HSC91876  Iris douglasiana E. Mackey 1986-5-13 Humboldt Patrick's Point State Park near Ceremonial Rock 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
  HSC12221  Iris douglasiana Gary J. Stebbins 1970-5-17 79 Humboldt Beyond HSC dorms up Jolly Giant Creek, 1.8 mi. from parking lot 76 Comment
  HSC13860  Iris douglasiana M. N. Gold 1966-5-22 42 Humboldt 1 mi. E of Hwy. 101 on Myrtle Ave., Eureka Comment
  JEPS88845  Iris purdyi Carol A. Wilson 1992-4-26 92 -ph7 Humboldt se of Fortuna (at Bridgeville, where Hwy 36 crosses the bridge); Bridgeville 259 Comment
  JEPS93199  Iris purdyi Carol A. Wilson 1992-4-26 92 -8 Humboldt 1.5 mi n of Miranda ( 100 ft on Cathey Road from Redwood Drive) 91 Comment
  RSA135821  Iris purdyi E. K. Balls 1957-5-25 22601 Humboldt 0.2 mile west of Trinity-Humboldt County line, along State Highway 36 732 Comment
  JEPS93202  Iris tenax subsp. klamathensis Carol A. Wilson 1986-5-15 86 -4 Humboldt near Orleans (along road (Orleans Alternate/Ishi Pishi Rd) where crosses Ishi Pishi Bridge just s of Somes Bar); Orleans Alternate/Ishi Pishi Rd Comment
  HSC44639  Iris tenuissima Diane L. Reed 1978-4-22 34 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 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
  HSC38356  Isatis tinctoria J. P. Smith, J. O. Sawyer 1974-6-2 7649 Humboldt Below Berry Summit on old Hwy. 299 762 Comment
  RSA152291  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp. 1402 Comment
  UC667944  Isoetes howellii Joseph P. Tracy 1935-5-25 13842 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC112459  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  CAS-BOT-BC112457  Isolepis cernua Doris K. Kildale 1927-6-25 3556 Humboldt Shelter Cove, coastal. Comment
  HSC38446  Jaumea carnosa J. P. Smith 1976-7-3 8935 Humboldt Manila, Samoa Peninsula Comment
  RSA181881  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River. 3 Comment
  HSC102931  Juncus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 934 Humboldt Patterson Meadows 1555 Comment
  UC421841  Juncus breweri J. B. Davy 1899-6-30 6182 Humboldt Ferndale Comment
  UC14897  Juncus bufonius J. P. Tracy 1900-5-27 805 Humboldt immediate vicinity Eureka 0 Comment
  UCD170786  Juncus bufonius var. bufonius Gordon Leppig 1998-5-11 757 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  HSC23674  Juncus covillei Tim Baroni 1971-6-25 56 Humboldt Comment
  JEPS79912  Juncus covillei var. obtusatus Joseph P. Tracy 1926-7-5 7725 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC184935  Juncus effusus subsp. pacificus Joseph P. Tracy 1912-7-25 3820 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET3878826  Juncus effusus var. pacificus Thomas Nelson 1974-7-20 1695 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC58092  Juncus exiguus G. L. Clifton, Terry Griswold 1979-8-1 12005 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC39048  Juncus falcatus Linda M. Barker 1976-6-22 1623 Humboldt 3 mi. W of Arcata Comment
  UC249812  Juncus falcatus var. falcatus Joseph P. Tracy 1924-7-13 6723 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103057  Juncus hesperius J. P. Tracy 1900-8-26 931 Humboldt immediate vicinity Eureka 0 Comment
  CHSC105160  Juncus lescurii Peter F. Zika 2008-11-3 24275 Humboldt Sunny meadow just above salt marsh, with Juncus breweri, Festuca arundinacea, Baccharis, Ammophila, mouth of Elk River NW of Route 101 bridge, 2 air km S of Eureka; North Coast (NCo) 2 Comment
  UCD150382  Juncus lescurii William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Freshwater Lagoon. Comment
  HSC99530  Juncus mertensianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 194 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1738 Comment
  HSC76529  Juncus patens Alerie Gizinski 1981-8-31 339 Humboldt Near Whiting Spring 1231 Comment
  HSC82411  Kalmia polifolia Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC562742  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  CAS-BOT-BC235892  Keckiella corymbosa Doris K. Kildale 1929-8-4 8779 Humboldt Mattole River at Union Mattole Comment
  POM225119  Keckiella corymbosa Philip A. Munz 1936-8-9 14328 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  UC413904  Keckiella corymbosa C. M. Goethe 1930-8-13 Humboldt Eel River Comment
  CAS-BOT-BC237831  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  UC526699  Koeleria macrantha Joseph P. Tracy 1925-7-5 7163 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1239673  Lamium amplexicaule Joseph P. Tracy 1939-7-8 16314 Humboldt Eureka 30 Comment
  UCSB30626  Lapsana communis Edwards, David 1974-7-13 Humboldt NE facing bank of ditch at the NE end of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  CAS-BOT-BC337991  Lasthenia californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC337992  Lasthenia californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  UC1368671  Lathyrus glandulosus J. P. Tracy 1948-8-7 18085 Humboldt Fickle Hill 609 Comment
  JEPS55279  Lathyrus latifolius W. L. Jepson 1932-7-30 16464 Humboldt Scotia Comment
  SBBG3353  Lathyrus littoralis H. and M. Dearing 1939-5-25 3435 Humboldt near Samoa Comment
  HSC49393  Lathyrus littoralis R. York 1979-5-15 291 Humboldt Coastal strand opposite the Louisiana Pacific Mill in Samoa. Comment
  HSC14750  Lathyrus nevadensis var. nevadensis D. E. Anderson 1965-5-1 3574 Humboldt Along Bluff Creek Rd., about 2.5 mi. from its junction with Hwy. 96. Comment
  UC902096  Lathyrus nevadensis var. nevadensis Harold E. Parks and Joseph P. Tracy 1949-6-25 11659 Humboldt near Mud Springs (on the Trinity Summit Road) 1341 Comment
  UC1199080  Lathyrus palustris Joseph P. Tracy 1938-7-6 16020 Humboldt Big Lagoon 6 Comment
  POM277780  Lathyrus polyphyllus Lyman Benson 1930-7-18 2189 Humboldt Arcata 457 Comment
  BLMAR275  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-7-30 275 Humboldt Lacks Creek, growing by fdsides adjacent to forest 1219 Comment
  SEINET12153979  Lathyrus polyphyllus J. P. Tracy 1951-1 19469 Humboldt On Takilma-Happy Camp Road, nr state line. Happy Camp Mtn, in Trinity Summit Range, NE Hawkins Bar 1280 Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  HSC103337  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7413 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  JEPS79919  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1929-5-5 8579 Humboldt Phillipsville, facing South Fork of Eel River South Fork of Eel River; Northern Coast Ranges 121 Comment
  POM87946  Lemna gibba Le Roy Abrams, Rimo C. Bacigalupi 8271 Humboldt Big Lagoon, south of Orick. Comment
  UC1101253  Lemna minuscula Malcolm A. Nobs, S. Galen Smith 1949-8-9 1247 Humboldt Clam Beach Comment
  UC672865  Lemna turionifera Joseph P. Tracy 1932-8-21 10370 Humboldt on w slope of Chaparral Mountain, on e side of Mad River, Three Cabins Ranch Mad River; Chaparral Mountain, , Three Cabins Ranch 457 Comment
  UC1103517  Lemna turionifera Joseph P. Tracy 1915-9-5 4667 Humboldt between Buckspot and Elk River (at Eureka); Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC89855  Lepidium nitidum Doris K. Kildale 1928-5-27 5948 Humboldt Kneeland Prairie. 853 Comment
  UC1199160  Lepidium nitidum Joseph P. Tracy 1913-5-4 4069 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1225755  Lepidium nitidum Joseph P. Tracy 1948-5-31 18012 Humboldt Alder Point 304 Comment
  CAS-BOT-BC13038  Lepidium virginicum var. menziesii C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  HSC17077  Leptosiphon androsaceus J. P. Tracy, H. E. Parks 1930-5-25 794 Humboldt Near Bridgeville 457 Comment
  UCD118584  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt near Blocksburg. Comment
  UC181261  Leymus X vancouverensis Joseph P. Tracy 1914-7-16 4586 Humboldt Humboldt Bay Northern Coast Region, Eureka (same spot as my #3744) 0 Comment
  CAS-BOT-BC436497  Ligusticum apiifolium Alice Eastwood; John Thomas Howell 1937-6-26 5073 Humboldt Near Berry Summit Comment
  CAS-BOT-BC436499  Ligusticum apiifolium John Thomas Howell 1937-7-31 13714 Humboldt Boise Creek Comment
  UC1197172  Ligusticum apiifolium Joseph P. Tracy 1939-8-5 16379 Humboldt along Van Duzen R. below Dinsmore's; Van Duzen R. 762 Comment
  CAS-BOT-BC508403  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata Comment
  JEPS79921  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  UC666950  Lilium pardalinum Joseph P. Tracy 1938-7-4 15994 Humboldt Valley of South Yager Creek 762 Comment
  UC54663  Lilium pardalinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5717 Humboldt Supply Creek; North Coast Ranges, Hupa Valley Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC75488  Lilium pardalinum subsp. pardalinum J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC15586  Lilium pardalinum subsp. pardalinum D. G. Hauger 1967-7-15 52 Humboldt Comment
  RSA130783  Lilium pardalinum subsp. vollmeri Albert M. Vollmer 1949-7-1 2 Humboldt Bog on Bald Mountain Comment
  CHSC19489  Limnanthes douglasii Norman Dennis 1965-6-11 113 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  UC1197410  Limnanthes douglasii Joseph P. Tracy 1930-5-25 8710 Humboldt Larrabee Valley Northern Coast Ranges 670 Comment
  UC1198545  Linanthus bolanderi Joseph P. Tracy 1911-7-7 3393 Humboldt 2 mi nw junction of Willow Creek with Trinity River (near the Beebe's Ranch) 914 Comment
  UC1198538  Linanthus harknessii Harold E. Parks and Joseph P. Tracy 1934-6-27 11086 Humboldt Grouse Mt. 1432 Comment
  UC1197836  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1066 Comment
  RSA0087554  Linnaea borealis subsp. longiflora Joseph P. Tracy 1950-6-21 18857 Humboldt Willow Creek Canyon, along Trinity Highway, east of crossing of Cedar Creek. 762 Comment
  UC1103033  Listera caurina Joseph P. Tracy 1932-7-20 10740 Humboldt Forks of Tish-Tang-a-tang Creek Trinity Summit 1219 Comment
  HSC64187  Listera convallarioides J. O. Sawyer, M. A. Ericksen 1979-6-23 3388 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1196366  Lithocarpus densiflorus Joseph P. Tracy 1908-6 2846 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 Comment
  RSA183495  Lithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland. 732 Comment
  RSA1900  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1930-10-29 1783 Humboldt Old Coast Road, 4 mi. so. of Honeydew Post Office. 305 Comment
  RSA21079  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1937-8-13 9239 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1225787  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18136 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  UC492222  Lithophragma heterophyllum Joseph P. Tracy 1932-4-24 9827 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC342350  Logfia gallica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  UC1103160  Lolium multiflorum Joseph P. Tracy 1948-6-13 18043 Humboldt 7 mi nw Blocksburg (Larrabee Creek); Larrabee 304 Comment
  UCD66068  Lolium multiflorum R. N. Raynor 1935-6-7 Humboldt Fort Seward. Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  UC1103158  Lolium temulentum Joseph P. Tracy 1909-8-1 3064 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS16099  Lomatium californicum W. L. Jepson 1902-6-20 1892 a Humboldt Fort Seward Ranch Ridge (= Mail Ridge) 1219 Comment
  UC1103401  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1924-3-9 6610 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC71235  Lomatium macrocarpum M. A. Baker 1980-5-23 1385 Humboldt Near Buck Mtn. 1524 Comment
  HSC63089  Lomatium martindalei M. A. Baker 1979-7-6 1013 Humboldt 0.6 k. W of FS 15N01 on FS 12N16 toward Bald Mtn. Comment
  RSA119326  Lomatium martindalei S. Tillett 1956-7-6 627 Humboldt 12 miles from Orleans on road south from Bar Shanty road to east of Orleans 1174 Comment
  HSC44439  Lomatium tracyi Barbara Kelly 1978-5-1 589 Humboldt 1/4 mi. from Horse Mtn., road 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  HSC48474  Lomatium triternatum J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9933 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  HSC99456  Lonicera conjugialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 108 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
  UC1239547  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  RSA99375  Lonicera hispidula var. vacillans F. W. Peirson 1926-7-13 7054 Humboldt Near Blue Lake, Mad River. Comment
  CAS-BOT-BC241486  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 1387 Humboldt 8 miles south of Eureka 30 Comment
  CAS-BOT-BC241493  Lonicera involucrata var. ledebourii Philip A. Munz 1925-6-21 9893 Humboldt Clam Beach, no. of Eureka Comment
  CHSC13520  Lonicera involucrata var. ledebourii A. R. Morrison 1974-4-27 Humboldt Scattered in open and partially shaded areas along coast ca. 2 mi. N of Trinidad. Comment
  HSC31654  Lonicera involucrata var. ledebourii Timothy B. Devine 1974-5-4 326 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  SEINET5736925 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 4.5 miles to collection site. Comment
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  HSC98117  Lotus denticulatus Cara Witte, Michael Scott 2007-6-22 343 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UC1223404  Lotus denticulatus Joseph P. Tracy 1934-6-23 13254 Humboldt near Blue Lake; Mad River 15 Comment
  JEPS55462  Lotus denticulatus W. L. Jepson 1902-6-19 1882 Humboldt Harris to Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  UC15617  Lotus humistratus C. C. Marshall 1888-1 Humboldt Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  UC15635  Lotus micranthus Harley P. Chandler May 1901 1136 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UC175636  Lotus micranthus Joseph P. Tracy 1913-6-13 4111 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC97236  Lotus purshianus var. purshianus Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9281 Humboldt Trinity River bar down stream from mouth of Willow Creek 152 Comment
  SEINET3136623  Lotus purshianus var. purshianus R. W. Spellenberg 1990-7-10 10237 Humboldt 11 air mi E of Burnt Ranch at Buck Flat, at junction of USFS Road 5N01 and USFS Road 1, 12 mi S of Berry Summit (on Calif. Hwy 299) on USFS 1 1433 Comment
  HSC25999  Lotus unifoliolatus var. unifoliolatus Thomas W. Nelson 1970-9-3 218 Humboldt Mad River. Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC40946  Lotus unifoliolatus var. unifoliolatus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1223408  Lotus yollabolliensis Joseph P. Tracy 1933-7-16 12798 Humboldt near McKay Camp (near the top of South Fork Mountain); South Fork Mountain 1676 Comment
  HSC49990  Luina hypoleuca M. A. Baker 1979-6-6 776 Humboldt N facing slope near to road to Hospital Mt. 610 Comment
  UC1197256  Lupinus arboreus J. P. Tracy 1901-6-16 1141 Humboldt immediate vicinity Eureka (bluff at Bucksport); immed vicin of Eureka, bluff at Bucksport 0 Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC503008  Lupinus bicolor Joseph P. Tracy 1932-5-1 9890 Humboldt vicinity Garberville; Northern Coast Ranges, vicin of Garberville 121 Comment
  SEINET6932626 Image available Lupinus bicolor Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC156999  Lupinus luteolus Joseph P. Tracy 1908-6 2696 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SJSU10768  Lupinus nanus R. D. Spadoni 1965-5-1 95 Humboldt c. 20 mi SE of Bridgeville on State Rte 36 Comment
  UC667008  Lupinus nanus Joseph P. Tracy 1939-4-29 16231 Humboldt Hoopa Valley 106 Comment
  UC1223286  Lupinus nanus Joseph P. Tracy 1950-5-6 18641 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET12165817  Lupinus propinquus J. T. Vale 1988-1 s.n. Humboldt nr Petrolia Comment
  HSC57931  Lupinus tracyi G. L. Clifton, Griswold 1979-7-31 11567 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  UCR40070  Lupinus tracyi Robert Runyon 1979-6-27 s.n. Humboldt Six Rivers National Forest, Along a ridge near (NE of) Trinity Summit Station, Trinity Co. line 1829 Comment
  HSC56946  Luzula comosa Overton, Butler 1979-7-23 9436 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC74630  Luzula comosa M. A. Baker 1980-5-17 1239 Humboldt Near Le Perron Peak 1066 Comment
  HSC45018  Luzula comosa R. Sutherland 1978-4-23 13 .23478 Humboldt Telegraph Ridge at head of Green Ridge 707 Comment
  UC1152143  Luzula comosa Joseph P. Tracy 1951-6-26 19550 Humboldt at Snow Camp; in fir woods at Snow Camp Comment
  UC184975  Luzula parviflora Joseph P. Tracy 1908-7-16 2877 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  UC1103686  Luzula subsessilis Joseph P. Tracy 1921-4-24 5449 Humboldt Northern Coast Ranges. Phillipsville Flat South Fork Eel River 91 Comment
  HSC36099  Lycopodiella inundata Gerald Fijii 1972-11-4 1 Humboldt Big Lagoon Bog 6 Comment
  UC249774  Lycopodiella inundata Joseph P. Tracy with H. E. Parks 1924-8-3 6769 Humboldt sphagnum bog at sw corner Big Lagoon; Northern Coast Region 6 Comment
  SDSU11607  Lysichiton americanus D. F. Howe 1972-6-30 4845 Humboldt Trinidad Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1733678  Lysichiton americanus Kay H. Beach, Frank Gould 1940-5-5 478 Humboldt near Fields Landing. Comment
  UCD138081  Lysichiton americanus P. B. Kennedy 1926-3-17 s.n. Humboldt on Highway 5 miles south of Eureka. Comment
  HSC59458  Lythrum hyssopifolia M. A. Erickson 1979-5-18 299 Humboldt On railroad right-of-way 25 yards N of Arcata Redwood Company main gate located between Arcata and Eureka. Comment
  RSA0015874  Lythrum hyssopifolia H. M. Pollard 1948-7-21 s.n. Humboldt Along Klamath River near Orleans. Comment
  UC673205  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2874 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC71712  Madia exigua M. A. Baker 1980-6-26 2431 Humboldt Near Sims Creek 610 Comment
  UC175195  Madia gracilis Joseph P. Tracy 1913-6-22 4258 Humboldt Dinsmore's Ranch; Valley of Van Duzen River, Buck Mountain 762 Comment
  RSA0010424  Madia gracilis subsp. pilosa Joseph P. Tracy 1931-6-28 9588 Humboldt Northern Coast Ranges: Buck Mountain, lower foothills of its northwest slope. 762 Comment
  UC1199397  Madia sativa J. P. Tracy 1903-8-9 1940 Humboldt immediate vicinity of Eureka 0 Comment
  RSA20801  Mahonia nervosa C. B. Wolf 1937-8-13 9266 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC47498  Maianthemum dilatatum Sheila Logan 1978-4-10 23 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  CAS-BOT-BC508516  Maianthemum dilatatum H. E. Parks 1932-5-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  SEINET8489258  Maianthemum dilatatum W. Roderick 1967-7-22 s.n. Humboldt Trinidad. 30 Comment
  UCSB15906  Maianthemum dilatatum Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  HSC101972  Maianthemum racemosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 869 Humboldt Patterson Meadows 1566 Comment
  SBBG58731  Maianthemum racemosum R. Hartwell 1938-8-4 109 Humboldt opposite the Bull Crk Flat store Comment
  UCD139077  Maianthemum racemosum T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  RSA0009527  Maianthemum racemosum subsp. amplexicaule Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA21603  Maianthemum stellatum Carl B. Wolf 1937-9-14 9350 Humboldt North Coast Range, Lord Ellis Road, 0.5 mile east of summit of Willow Creek Grade 762 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
  CAS-BOT-BC140134  Malus fusca C. B. Wolf 1930-10-26 1766 Humboldt So. edge of Big Lagoon near the Redwood Highway Bridge 3 Comment
  HSC100465  Marah Carl C. Marshall Apr 1886 55 Humboldt Everywhere. Comment
  HSC7032  Marah oregana G. N. Bos 1965-5-15 268 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC100524  Medicago denticulata Carl C. Marshall Apr 1886 166 Humboldt Fields, etc. near bay. Comment
  HSC48058  Medicago polymorpha Thomas W. Nelson 1978-4-24 3890 Humboldt Eureka, along F St. between Orchard and Willow St. Comment
  HSC79492  Medicago polymorpha Kenneth Clark 1980-6-15 700 Humboldt 300 yards SE of Dead Man's Gulch 8 Comment
  CAS-BOT-BC271115  Melica bulbosa Joseph P. Tracy 1935-7-24 14194 Humboldt Near Ranger Station, Trinity Summit 1828 Comment
  CAS-BOT-BC281318  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mile N of Richardson Grove, US Highway 101 highway, along S Fork of Eel River, S facing road cut and ditch Comment
  CAS-BOT-BC281327  Melica harfordii Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC71167  Melica harfordii Thomas W. Nelson 1977-5-30 3413 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC10369  Melica subulata J. P. Tracy 1926-5-22 7503 Humboldt Prairie Creek. 152 Comment
  HSC70484  Melica subulata Gail Newton 1980-7-20 1631 Humboldt Near Bell Swamps. 1426 Comment
  UC552706  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  UCD88673  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  HSC98074  Melilotus albus Cara Witte 2007-7-12 529 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC418978  Mentha canadensis H. E. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  HSC12565  Mentha pulegium D. La Conte 1970-7-7 1 Humboldt Comment
  JEPS63451  Mentha pulegium W. L. Jepson 1936-8-11 17872 Humboldt South Fork Eel River Philipsville; , Philipsville Comment
  UC213509  Mentha spicata Joseph P. Tracy 1919-9-14 5207 Humboldt borders Lack Pond (Trinity River Valley near Willow Creek); Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  UC166030  Mentzelia dispersa Joseph P. Tracy 1908-6 2843 Humboldt n/w slope Buck Mountain; Northern Coast Ranges 1219 Comment
  RSA293124  Micropus californicus Thomas W. Nelson, Jane P. Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1199339  Micropus californicus var. californicus Joseph P. Tracy 1932-5-1 9868 Humboldt vicinity Garberville 121 Comment
Read comments
Sep 13 2009
  UC891844  Microseris borealis Milo S. Baker 1927-8-21 24886 Humboldt bog near Bald Mt. 914 Comment
  HSC60080  Microseris laciniata M. A. Baker 1978-5-6 497 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC322683  Microseris laciniata K. L. Chambers 1969-5-25 2921 Humboldt On road to Harris about 1 mile east of the freeway overpass at Garberville Comment
  UC204745  Microseris laciniata subsp. laciniata Joseph P. Tracy 1918-7-3 4997 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  JEPS13224  Microseris laciniata subsp. leptosepala W. L. Jepson 1902-6 1942 Humboldt Redwood Creek, Green Point Ranch Comment
  HSC39233  Microseris nutans D. E. Anderson, J. P. Smith 1971-7-6 - 1275 Humboldt Horse Mtn. Comment
  HSC102010  Microsteris gracilis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 911 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SEINET178573  Microsteris gracilis Parks, Tracy 1930-5-25 0795 Humboldt Laribee Valley 792 Comment
  SEINET200380  Microsteris gracilis J. P. Tracy 1930-6-21 8789 Humboldt Larrabee Valley 701 Comment
  RSA14133  Mimulus aurantiacus var. aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt Stone Lagoon, below Orick Comment
  UC1011928  Mimulus aurantiacus var. aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt above beach s Trinidad; Route 101 30 Comment
  HSC56177  Mimulus breweri G. L. Clifton, Griswold 1979-8-1 12085 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  HSC23725  Mimulus cardinalis Tim Baroni 1971-8-1 151 Humboldt 8 mi. E of Petrolia on the Mattole River Comment
  HSC41334  Mimulus cardinalis Brad Klipfel 1974-9-7 568 Humboldt Horse Mtn.: E Fork of Willow Creek Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  UC446440  Mimulus guttatus P. E. Goddard 1906-6 678 Humboldt Lasseck Pk. Comment
  CDA41787  Mimulus guttatus E. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  RSA14135  Mimulus guttatus Elmer I. Applegate 1923-9-10 3995 Humboldt Stone Lagoon. Comment
  SEINET12269862  Mimulus guttatus J. P. Tracy 1950-1 18745 Humboldt near Capetown, Cape Ridge, 1 mi E of Cape Mendocino 152 Comment
  HSC103093  Mimulus kelloggii Sydney Carothers 2014-6-10 9 Humboldt Six Rivers National Forest, Lassics Botanical Area. Along trail to Mt. Lassic approaching Peak 1. 1707 Comment
  HSC44556  Mimulus moschatus Brad Klipfel 1973-7-15 175 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC103113  Mimulus nanus M. Mesler 2010-7-21 837 Humboldt South Fork Mtn, FS rd 4N12 1700 Comment
  UC26991  Mimulus nasutus C. C. Marshall 1888-1 Humboldt Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  UC1103339  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1919-9-22 5266 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC67388  Minuartia douglasii Thomas W. Nelson, James Nelson 1980-6-10 5413 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  RSA168878  Minuartia douglasii Joseph P. Tracy 1950-7-6 18993 Humboldt 2 miles S of Burr Valley on the Albee Road, Bridgeville to Blocksburg. 1159 Comment
  HSC97557  Minuartia nuttallii subsp. gregaria Cara Witte 2007-6-1 164 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  HSC99492  Mitella caulescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 152 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC433035  Mitella ovalis C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  SD56850  Mitellastra caulescens Darley F. Howe 1963-8-7 3806 Humboldt 23 mi west of west end to 6 Rivers north fork on #299 213 Comment
  HSC38487  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-7-6 - 1272 Humboldt Horse Mtn. Comment
  HSC58317  Moehringia macrophylla Overton, Butler 1979-8-2 12605 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC97461  Moehringia macrophylla C. Witte 2007-5-21 51 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  RSA0022793  Monardella villosa subsp. subserrata C. Epling, Wm. Robinson 1935-7-24 s.n. Humboldt Dyerville. Comment
  UC183598  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC445046  Montia linearis Mrs. H. C. Cantelow 1927-6-7 18 Humboldt Upper Mad River Comment
  CAS-BOT-BC445165  Montia parvifolia L. R. Abrams; R. Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon south of Orick Comment
  HSC55086  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11753 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC64307  Montia parvifolia Steve Selva 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC98550  Montia parvifolia Cara Witte 2008-6-27 765 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  HSC63080  Morella californica David Wheeler 1979-4-30 89 Humboldt 910 Gwinn St., McKinleyville Comment
  HSC90390  Morella californica Jean Hanson 1980-4-12 49 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  CAS-BOT-BC260574  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  OBI22021  Muhlenbergia filiformis Joseph P. Tracy 18-Sep-19 5233 Humboldt Trinity Summit 1829 Comment
  UCD86802  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  HSC103302  Myosotis latifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-28 3016 Humboldt Above College Cove (north of Trinidad State Beach); along path to beach. 61 Comment
  SEINET5624170 Image available Myosotis sylvatica R. D. Modafferi 1965-1 s.n. Humboldt 0.5 mile south of Trinidad on old highway 101 305 Comment
  SEINET6671232 Image available Myrica californica W. C. Muenscher, M. W. Muencher 1939-1 15081 Humboldt Near Creck Comment
  HSC77875  Myriophyllum sibiricum William White 1975-5-25 Humboldt Orick Beach ponds Comment
  JEPS70349  Navarretia intertexta Milo S. Baker 1923-7-19 26 Humboldt Wilders (= Carlotta) Wilders Comment
  JEPS79938  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1938-7-5 16012 Humboldt open flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  UC907815  Navarretia leucocephala subsp. minima Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle and North Yager Creeks (East Ranch) 762 Comment
  RSA67625  Navarretia mellita P. A. Munz 1951-7-15 16545 Humboldt Ca. 3 mi. N of Willow Creek 137 Comment
  HSC42587  Navarretia pubescens Maralyn O'Meara 1974-7-11 532 Humboldt Kneeland, Barry Ridge Comment
  SEINET202730  Navarretia pubescens Joseph P. Tracy 1950-6-23 18861 Humboldt Dobbyn Creek, 3 miles NE of Alderpoint. 213 Comment
  CAS-BOT-BC232739  Navarretia sinistra subsp. pinnatisecta Doris K. Kildale 1926-8-2 2444 Humboldt Flannegan's Mill near Strong's Station, Van Duzen River Comment
  UCR30859  Navarretia squarrosa A. C. Sanders 1981-8-6 2308 Humboldt Russ Park, City of Ferndale 46 Comment
  HSC25539  Navarretia squarrosa Mike Sibernagle 1972-12-4 Humboldt 3 mi. E of Hwy. 101 beside Crannel Rd. Comment
  UC1198519  Navarretia tagetina Joseph P. Tracy 1934-7-9 13344 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  JEPS70478  Navarretia tagetina W. L. Jepson 1932-7-24 16386 Humboldt above Eel Rock; Mail Ridge 762 Comment
  UC169029  Nemacladus capillaris Joseph P. Tracy 1908-6 2842 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 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
  SBBG6129  Nemophila menziesii var. atomaria H. and M. Dearing 1939-4-24 3424 Humboldt near Dyerville Comment
  UC177171  Nemophila menziesii var. atomaria Joseph P. Tracy 1913-5-4 4061 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC32882  Nemophila parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1239748  Nemophila parviflora Joseph P. Tracy 1914-6-14 4510 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  RSA254745  Nemophila parviflora var. parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch north of Dinsmore. Comment
  JEPS1920  Nemophila pedunculata Joseph P. Tracy 1917-4-29 4779 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  UC198618  Nicotiana quadrivalvis Joseph P. Tracy 1916-9-5 4764 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  HSC99078  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-25 940 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  HSC36066  Nuphar polysepala Wm. Henry 1973-5-12 Humboldt Clam Beach Lagoon, .5 mi. S of Little River Comment
  HSC20658  Nuttallanthus texanus R. T. Forester 1963-4-30 18 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC59715  Nuttallanthus texanus Clark L. Miller 1979-5-9 1110 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC99107  Oemleria cerasiformis Cara Witte 2008-6-13 721 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  UC1197136  Oenanthe sarmentosa Joseph P. Tracy 1932-9-17 10802 Humboldt Arcata Bottom 15 Comment
  UCD127756  Oenanthe sarmentosa Collector Unknown 1932-7-1 s.n. Humboldt California Seed Lab. Comment
  UC1196948  Oenothera glazioviana J. P. Tracy 1898-9-25 281 Humboldt along streets Eureka 0 Comment
  POM224764  Oenothera glazioviana P. A. Munz 1936-8-10 14335 Humboldt At edge of Rio Del. Comment
  UC1196944  Oenothera wolfii Joseph P. Tracy 1927-7-24 8302 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC902173  Oenothera wolfii Joseph P. Tracy 1949-8-8 18401 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCR45425  Onychium densum Thomas W. Nelson 1977-6-15 3452 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  HSC102042  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 945 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC205159  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1919-9-22 5278 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC16681  Orobanche californica subsp. californica H. E. Parks, S. T. Parks 1930-9-14 782 Humboldt Big Lagoon Comment
  SEINET200710  Orobanche californica subsp. californica Joseph P. Tracy 1918-7-1 4970 Humboldt Cape Mendocino southwestern slopes fronting the ocean three miles south of Point of the Cape 3 Comment
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  CAS-BOT-BC500233  Orobanche pinorum Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC16675  Orobanche uniflora T. M. Mingo May 1965 Humboldt W of College cove near brush Comment
  UC1197442  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1941-4-26 16865 Humboldt Kneeland Prairie. Comment
  JEPS25708  Orobanche uniflora subsp. occidentalis P. C. Hutchison 1961-5-22 2018 Humboldt North side of Highway US 299 2.6 miles E of Berry Summit along south side of Willow Creek. Comment
  RSA0083228  Orthilia secunda C. B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  HSC56086  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11774 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1222796  Orthocarpus imbricatus Joseph P. Tracy 1951-6-26 19562 Humboldt halfway between Snow Camp and Twin Lakes; halfway between Snow Camp and Twin Lakes Comment
  RSA407951  Orthocarpus purpurascens Francis W. Pennell, Joseph P. Tracy 1940-7-6 26085 Humboldt Table Bluff L.H., W of Lolita. Back of beach. 0 Comment
  HSC102550  Osmorhiza berteroi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1538 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC76202  Osmorhiza berteroi Overton, Butler 1979-8-2 12517 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC81604  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5249 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC183666  Osmorhiza occidentalis Joseph P. Tracy 1913-6-20 4238 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  UCR275113  Oxalis articulata Charity A. Hartshorn 2016-5-14 38 Humboldt Arcata Community Forest 244 Comment
  HSC59074  Oxalis articulata subsp. rubra Thomas Wood 1979-5-3 147 Humboldt In Arcata, in front yard at 3799 Spear Ave. 9 Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  HSC49078  Oxalis oregana J. O. Sawyer 1977-4-23 2843 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  RSA254427  Oxalis oregana Larry L. Norris 1975-4-10 2310 Humboldt Samuel P. Taylor State Park Comment
  SD64137  Oxalis oregana W. Bertsch 1953-7-30 223 Humboldt Redwoods-Dyerville Highway 101. 60 Comment
  SEINET3347650 Image available Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt High Prairie Creek, east of Bald Mt. Comment
  UC725500  Oxalis trilliifolia A. A. Heller 1923-7-10 13787 Humboldt Humboldt Camp between Scotia and Pepperwood Comment
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC8614  Papaver rhoeas D. G. Hauger 1967-7-13 6 Humboldt Corner of W boundary of section 25 Comment
  CDA2139  Parapholis incurva Gordon Leppig, Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad Harbor, Trinidad. Comment
  CAS-BOT-BC253925  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  HSC72402  Parentucellia viscosa J. P. Smith 1973-5-26 6788 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC71156  Paxistima myrsinites Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  JEPS10352  Pedicularis densiflora Joseph P. Tracy 1926-5-2 7426 Humboldt near the South Fork; Trinity River Valley 182 Comment
  SEINET10548991  Pedicularis densiflora subsp. densiflora Jones 1985-4-20 Jones 21 A Humboldt T34n,r6e,sec.21. Burnt ranch campground, shasta-trinity ntl. Froest. Found at Entrance to campground 433 Comment
  HSC98783  Pellaea brachyptera Cara Witte 2007-8-9 629 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  HSC75553  Penstemon anguineus J. O. Sawyer, R. J. Cole 1977-7-3 3010 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC577405  Penstemon anguineus Joseph P. Tracy 1936-8-8 15130 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit, e of Grove's Prairie 1524 Comment
  BLMAR273  Penstemon anguineus Jennifer Anthony-Wheeler 1999-7-30 273 Humboldt Lacks Creek, occuring in open, logged area of coniferous forests 1219 Comment
  JEPS7213  Penstemon anguineus Lincoln Constance 1934-6-19 905 Humboldt Grasshopper Pk near summit South Fork Eel River, Bull Creek Region 914 Comment
  OBI9300  Penstemon azureus Carl B. Wolf 1937-8-13 9220 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new rd towards Trinity summit 1219 Comment
  NY604545  Penstemon laetus var. sagittatus F. W. Pennell 1940-7-7 26094 Humboldt Grouse Mountain, west of Salyer 1463.0 Comment
  UC1586908  Penstemon parvulus Juha Pykala and D. H. Norris 1987-6-10 1523 Humboldt on Onion Lake Road about 1-2 mi s from Onion Lake; Six Rivers National Forest, s from Onion Lake 1280 Comment
  HSC21104  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  SEINET10547443 Image available Penstemon rattanii var. rattanii V. Rattan Rattan 11918 Humboldt 792 Comment
  HSC39178  Pentagramma triangularis D. E. Anderson, J. P. Smith 1971-6-28 - 1223 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CAS-BOT-BC71618  Pentagramma triangularis subsp. triangularis Doris K. Kildale 1928-12-30 6765 Humboldt Phillipsville Comment
  UC180225  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1914-10-11 4637 Humboldt Stephen Hill place Northern Coast Region, Eureka 0 Comment
  SD112992  Perideridia howellii Darley F. Howe 1961-8-2 3125 Humboldt 24 miles east of Orick on Bald Mt. road. 915 Comment
  HSC55993  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-31 11423 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC413712  Persicaria hydropiper Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC413711  Persicaria hydropiper Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  UCD99507  Persicaria lapathifolia Malcolm A. Nobs; S. Galen Smith 1949-8-9 1232 Humboldt Southern side of the town of Blue Lake. Comment
  CHSC118462  Petasites frigidus var. palmatus Richard R. Halse 2016-3-24 9684 Humboldt Along U.S. Hwy. 101 ca. 9.6 miles south of Orick. 8 Comment
  RSA167253  Petasites palmatus Joseph P. Tracy 1947-2-23 17670 Humboldt Van Duzen River, near Grizzly Creek. 91 Comment
  UC1222904  Phacelia bolanderi Joseph P. Tracy 1950-6-18 18852 Humboldt Briceland Comment
  UC169010  Phacelia bolanderi Harley P. Chandler June 1901 1456 Humboldt between Bluff Creek and Orleans; North Coast Ranges 304 Comment
  UC673279  Phacelia bolanderi Lincoln Constance and Reed C. Rollins 1942-5-20 2999 Humboldt Dyerville Bridge Klamath-Siskiyou region, Eeel River (2 mi n of Weott) 48 Comment
  SEINET12330003  Phacelia bolanderi F. H. Utech 1986-1 86 -384 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  HSC30745  Phacelia corymbosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5621 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC562580  Phacelia malvifolia Joseph P. Tracy 1934-6-10 13212 Humboldt along coast in front of South End of Stone Lagoon (at foot of slope); Dry Lagoon 3 Comment
  HSC57855  Phacelia mutabilis G. L. Clifton 1979-7-31 11371 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA134090  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 275 Humboldt Above the South Fork of the Eel River, about w miles S of the Humboldt County line. Redwood and Madrone area along U.S. 101. Comment
  UC1239735  Phacelia procera Joseph P. Tracy Jul 16 1930-Jul 19 1930 9084 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC35530  Phacelia procera Chesnut and Drew 1888-7-21 Humboldt summit S. Fork Mt. Comment
  UC552718  Phalaris arundinacea Joseph P. Tracy 1935-6-8 13950 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  UCD88524  Phalaris arundinacea J. W. Logan 1926-6-2 3 Humboldt Eureka. Rusk Ranch. Comment
  CAS-BOT-BC258965  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road, on Bald Mt. 609 Comment
  UC1152048  Phalaris minor Joseph P. Tracy 1951-6-21 19519 Humboldt Hydesville Comment
  HSC55709  Philadelphus californicus Overton, Butler 1979-7-26 10098 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC100586  Philadelphus gordonianus Carl C. Marshall Jul 1885 91 Humboldt Mountains near streams. Comment
  CAS-BOT-BC76574  Philadelphus lewisii Alice Eastwood 1921-7-21 10671 Humboldt Van Duzer River, on the road. Comment
  SEINET200858  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3319 Humboldt Along Willow Creek, near its mouth. 183 Comment
  HSC58654  Phleum alpinum G. L. Clifton, Griswold 1979-7-31 11726 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  HSC97276  Phleum alpinum M. Mesler 2007-7-15 783 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UCD89642  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Lagna, near the school house. 609 Comment
Read comments
Jun 16 2013
  HSC17184  Phlox adsurgens Milo S. Baker Humboldt 15 mi. E of Hoopa at end of Forest Rd. 1372 Comment
  HSC33147  Phlox diffusa Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1243 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  UC1541553  Phlox gracilis H. E. Parks, J. P. Tracy 1930-5-25 795 Humboldt Laribee Valley 762 Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC672882  Phyllospadix torreyi Joseph P. Tracy 1938-9-9 Humboldt Trinidad Comment
Read comments
Dec 13 2006
  SJSU2517  Physocarpus capitatus H. L. Buckalew 1962-6-21 Humboldt Smith R at Smith Cr Redwood State Park Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  NY34414  Picea sitchensis L. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad Comment
  SBBG25612  Picea sitchensis E. R. Blakley 1966-8-17 6802 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UCD134310  Picea sitchensis Roman Gankin 1965-8-6 551 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  HSC1483  Pinus contorta R. I. Bonn 1965-5-9 46 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC45891  Pinus contorta J. P. Smith 1971-10-6 4962 Humboldt Dunes at end of Murray Rd., McKinleyville, Bulk Collection # 154 Comment
  LA6067  Pinus contorta Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  UC502909  Pinus lambertiana Joseph P. Tracy 8961 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC82621  Pinus monticola Thomas W. Nelson 1979-7-11 5006 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  CAS-BOT-BC136469  Piperia candida L. R. Abrams 1916-7-11 5986 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1196419  Piperia elegans Joseph P. Tracy 1947-7-9 17831 Humboldt lower slopes Horse Mountain (at the Arford Cabin) 1219 Comment
  UC14938  Piperia elongata Mrs. M. H. Manning Jul 1901 Humboldt near Hupa; Eureka Trail Comment
  HSC102544  Piperia unalascensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1534 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC666983  Piperia unalascensis Joseph P. Tracy 1933-7-25 12880 Humboldt Grouse Mountain 1524 Comment
  HSC102924  Plagiobothrys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 862 Humboldt Patterson Meadows 1555 Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  UC552843  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC54754  Plagiobothrys nothofulvus Harley P. Chandler May, 1901 1083 Humboldt Harris North Coast Ranges 609 Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  JEPS60968  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UCD124391  Plantago coronopus Stuart K. Harris 1930-10-14 6982 Humboldt near Palmer Creek, 1 mile west of Fortuna. 15 Comment
  UC198604  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River North Coast Ranges, Little River 6 Comment
  HSC59583  Plantago lanceolata Rick Lundquist 1979-4-24 35 Humboldt SE corner 7th and Union St., Arcata 24 Comment
  POM312368  Plantago maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1205 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. 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
  SEINET4086441  Plantago purshii O. M. Clark 1932-1 1174 Humboldt South Eureka. Comment
  HSC53868  Platanthera dilatata Griswold, Butler 1979-7-10 6348 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC27463  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-6-30 90 Humboldt Big Lagoon State Park, 8 mi. N of Trinidad 0 Comment
  RSA246764  Platanthera leucostachys Robert F. Thorne, Percy C. Everett 1965-8-9 35284 Humboldt Big Lagoon. 3 Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC99478  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 137 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  CAS-BOT-BC91633  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-23 4807 Humboldt Little Van Duzen River. Comment
  CHSC31283  Platystemon californicus Mark Stopher 1980-4-2 44 Humboldt Samoa Peninsula near Humboldt Bay. In sand dunes. 4 Comment
  HSC33745  Platystemon californicus A. M. Montalvo 1975-5-24 269 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  HSC69774  Platystemon californicus R. Kalal 1979-5-28 63 Humboldt Along Samoa Blvd. 6 Comment
  HSC54031  Pleuropogon refractus Griswold, Butler 1979-7-12 7222 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC127319  Pleuropogon refractus Harley P. Chandler May, 1901 1107 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 15 Comment
  UC184171  Pleuropogon refractus Joseph P. Tracy 1901-6-10 1131 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC10620  Poa annua R. D. Zortman 1963-3-15 46 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC40866  Poa annua Linda M. Barker 1976-4-30 1399 Humboldt 3 mi. W of Arcata Comment
  SEINET255064 Image available Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp Comment
  UC1103793  Poa annua Joseph P. Tracy 1914-8-23 4588 Humboldt region about Humboldt Bay (forks of Elk River); Northern Coast Region 0 Comment
  UC526847  Poa bolanderi Joseph P. Tracy 1934-7-18 13435 Humboldt Grouse Mt 1524 Comment
  SEINET200569 Image available Poa bulbosa Joseph P. Tracy 1942-2-6 17104 Humboldt Valley of South Yager Creek 762 Comment
  HSC10689  Poa confinis L. H. Myers 1963-5-3 49 Humboldt Sand dunes W of Lanphere's Rd., Mad River Slough area. Comment
  UC183532  Poa confinis Joseph P. Tracy 1905-4-30 2178 Humboldt Ocean Beach Humboldt Bay; North Coast Region Comment
  HSC10704  Poa douglasii R. H. Berg 1963-5-8 67 Humboldt On sand dunes near Lanphere's, Arcata. Comment
  JEPS71279  Poa douglasii unknown 1925-7-29 118 Humboldt Samoa Comment
  OBI35877  Poa douglasii David J. Keil 1983-7-1 17286 Humboldt Ca. 5 mi NW of Petrolia along Mattlole Rd Comment
  SEINET10659238  Poa douglasii Huron H. Smith 1911-1 Smith 3852 Humboldt Comment
  HSC10718  Poa howellii J. P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie. Comment
  RSA296739  Poa macrantha J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt Samoa Peninsula just east of the drag strip. Comment
  CAS-BOT-BC255943  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC39722  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1254 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC98597  Poa secunda subsp. secunda Cara Witte 2007-6-4 197 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC98797  Poa secunda subsp. secunda Cara Witte 2008-6-11 712 Humboldt National Forest Road 5N10. 2.5 miles south of intersection with Forest Service Road 5N41. 1303 Comment
  UC525666  Poa secunda subsp. secunda Joseph P. Tracy 1933-6-13 12602 Humboldt near summit Hoopa Mt (on rd from Hoopa westward to Bair's) 914 Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  RSA129470  Poa trivialis H. S. Yates 1936-6-16 5683 Humboldt Near Bayside 9 Comment
  UCD92117  Poa trivialis H. S. Yates 1936-6-16 6582 Humboldt near Bayside. Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC39221  Polygala californica D. E. Anderson, J. P. Smith 1971-7-6 - 1321 Humboldt E of Pine Ridge Summit Comment
  UC165802  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-8 3447 Humboldt hill slopes at w side Trinity River (near Willow Creek); Northern Coast Ranges 152 Comment
  UC902121  Polygala cornuta var. cornuta Joseph P. Tracy 1946-7-28 17622 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC672945  Polygonum amphibium Joseph P. Tracy 1934-7-20 13468 Humboldt Big Lagoon 3 Comment
  UC1192343  Polygonum aviculare subsp. aviculare Malcolm A. Nobs and S. Galen Smith 1949-8-11 1344 Humboldt Stone Lagoon; marsh on e shore Comment
  RSA144208  Polygonum coccineum Peter H. Raven 1961-8-22 16575 Humboldt Chileno Valley Comment
  UC1198076  Polygonum davisiae Joseph P. Tracy 1932-7-12 10482 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC55014  Polygonum douglasii Overton, Butler 1979-7-31 11405 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC103385  Polygonum phytolaccifolium K. Auker, R. Battleson 2007-6-15 13 Humboldt Grouse Mtn.; along Forest Service Road 5N04, 1.0 mi. E of FS Road NF1. 1494 Comment
  HSC98076  Polygonum phytolaccifolium Cara Witte 2007-7-11 506 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC419854  Polygonum polygaloides subsp. confertiflorum Alice Eastwood; John Thomas Howell 1937-6-23 4812 Humboldt Little Van Duzen River Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  RSA275327  Polygonum polystachyum Thomas W. Nelson 1978-10-10 4555 Humboldt Growing on Hwy 101 right of way just N of Humboldt State University exit, 1.5 miles. Comment
  UC1222471  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1947-8-24 17923 Humboldt on Box Camp Trail 1/2 mi w summit; Trinity Summit 1676 Comment
  CAS-BOT-BC421005  Polygonum spergulariiforme Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC45418  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson 1977-8-6 3720 Humboldt Ridge between Bear and Blanket Creeks Comment
  POM210237  Polygonum spergulariiforme H. E. Parks, Joseph P. Tracy 1930-9-15 767 Humboldt Bald Hills Comment
  RSA53825  Polygonum spergulariiforme H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  CHSC53230  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd near the boat ramp. 4 Comment
  HSC45868  Polypodium glycyrrhiza J. P. Smith 1971-10-6 4984 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA46707  Polypodium glycyrrhiza Doris K. Kildale 1929-3-10 6942 Humboldt Bug Creek Comment
  UC57305  Polypodium glycyrrhiza J. P. Tracy 1901-1-27 986 Humboldt sand hills of Ocean Beach at Samoa (opposite Eureka) Comment
  CAS-BOT-BC76841  Polypodium glycyrrhiza Volney Rattan 1903-1-1 s.n. Humboldt Above Mad River. Comment
  HSC28927  Polypodium glycyrrhiza Diane Johnson 1972-4-12 Humboldt Butler Valley near Big Bend Rd. Comment
  UC197909  Polypodium glycyrrhiza Joseph P. Tracy 1913-3-9 4023 Humboldt Hydesville; Northern Coast Region 30 Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  RSA689965  Polypodium scouleri Charlotte M. Hoak 1936-8-15 376 Humboldt Patricks Point Comment
  UC43119  Polypodium scouleri J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  UC667946  Polypodium scouleri Joseph P. Tracy 1936-9-6 15183 Humboldt Big Lagoon Comment
  RSA85053  Polypodium scouleri F. W. Peirson 1926-7-12 7039 Humboldt Hills north of inlet at Orick Comment
  SEINET200576 Image available Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt on pasture. Comment
  CAS-BOT-BC233212  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  HSC79387  Polypogon monspeliensis Kenneth Clark 1979-7-1 459 Humboldt Shelter Cove. One beach at base of cliffs; first reef of Point Delgada headlands. 5 Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  HSC13042  Polystichum munitum T. C. DeCew 1970-11-14 35 Humboldt HSU Campus Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  HSC93265  Polystichum munitum Gordon Leppig 1998-3-11 716 Humboldt Redwood Park, near Jolly Giant Cr. 91 Comment
  UC249776  Polystichum munitum Joseph P. Tracy 1924-8-10 6803 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  HSC36314  Potamogeton natans L. Preston 1973-5-19 Humboldt 2 mi. W Arcata Comment
  HSC59076  Potamogeton natans Thomas Wood 1979-5-17 185 Humboldt Clam Beach Pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  HSC96488  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 633 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC36106  Potentilla anserina subsp. pacifica Otis Weimer 1973-10-16 731010 .5 Humboldt On Lindsay Creek Marsh 4 mi. N of Hwy. 299 on Fieldbrook Rd. Comment
  UC492177  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC56414  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-11 7064 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC585628  Potentilla gracilis var. gracilis Joseph P. Tracy 1933-8-6 12929 Humboldt on Bald Hills e Orick (Tomlinson Ranch); on Bald Hills e of Orick, Tomlinson Ranch 670 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC508640  Prosartes hookeri Doris K. Kildale 1926-7-22 2420 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC15473  Prosartes smithii D. E. Anderson 1962-3-31 1959 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  UCSB666  Prosartes smithii Parks, H.; Parks, S. 1952-05 Humboldt Spruce Cove, Trinidad 30 Comment
  HSC97300  Prosartes smithii M. Mesler 2006-6-24 620 Humboldt NNE of Grouse Mtn., 1.1 mi. from NF 1 1555 Comment
  UCSB27862  Prosartes smithii Phelps, M. 1972-3-20 Humboldt 0.5 mi. south of Redway on Old Hwy. 101, 1000 yds. from road toward river 182 Comment
  HSC46018  Prunella vulgaris Catherine Chin 1978-8-5 96 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  HSC99296  Prunella vulgaris subsp. lanceolata Jimerson, J. Pageau 1979-8-10 721 Humboldt Near Tish ATang Ridge, close to the town of Hoopa 1464 Comment
  RSA22550  Prunella vulgaris var. lanceolata H. E. Parks, S. T. Parks 1937-07 24052 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC1196727  Prunella vulgaris var. lanceolata J. P. Tracy 1911-8-27 3533 Humboldt immediate vicinity Eureka 0 Comment
  UC673114  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  HSC102105  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1008 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC357607  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt Along Mad River, near Blue Lake 15 Comment
  SD148240  Pseudognaphalium stramineum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7013 Humboldt Samoa Peninsula, 2.6 miles south of California Highway 255, bridge across Humboldt Bay. 14 Comment
  CAS-BOT-BC80119  Pseudotsuga menziesii L. B. Kildale 1930-9-21 10219 Humboldt Bluff Creek trail to Fish Lake Comment
  CAS-BOT-BC80120  Pseudotsuga menziesii Doris K. Kildale 1926-11-27 2840 Humboldt Alton Hill, old terrace above lower Van Duzen River Comment
  UC502911  Pseudotsuga menziesii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8960 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SEINET11737772  Pseudotsuga menziesii K. S. Erdman 1970-1 4792 Humboldt Redwood National Park near Holter Ridge entrance along Bald Hills Road, SE of Orick Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  UC63998  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-3-1 Humboldt Comment
  UC1222913  Psilocarphus tenellus Joseph P. Tracy 1946-6-23 17597 Humboldt se end Kneeland Prairie (near the old Dan McBride place) 762 Comment
  HSC55265  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-8-2 12617 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  POM209002  Pyrola bracteata Lincoln Constance 1934-6-8 835 Humboldt Cow Cr. fire-trail, Bull Cr. watershed, Humboldt Redwood Park. 457 Comment
  UC1197577  Pyrola picta Joseph P. Tracy 1933-7-25 12876 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 Comment
  UC154161  Pyrola picta Mrs. M. H. Manning 1900-1 Humboldt near Hupa, Bald Hill Comment
  SEINET200713  Pyrola rotundifolia J. P Tracy 1901-6-30 1191 Humboldt Immediate vicinity of Eureka, 0 Comment
  UC1193294  Quercus chrysolepis R. H. Neuns 1950-10-12 140 Humboldt Queens Peak 701 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
  UC1196524  Quercus garryana Joseph P. Tracy 1924-8-31 6857 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UC667987  Quercus garryana Joseph P. Tracy 1938-6-13 15915 Humboldt Cold Springs Grouse Mountain 1432 Comment
  RSA609410  Quercus garryana var. garryana Louis C. Wheeler 1958-8-7 7369 Humboldt Fort Baker Manganese Mine. Comment
  UCD46155  Quercus garryana var. garryana W. L. Colwell 1957-9-4 53 Humboldt Near Board Camp Mountain, 18 miles southeast of Korbal, near Six Rivers National Forest, Humboldt County. 1371 Comment
  HSC98723  Quercus kelloggii Cara Witte 2008-7-11 885 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  UCD165093  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi. from Garberville along Alderpoint Rd. near the intersection with Highway 36. (Coordinates and elevation estimated by label maker.) 215 Comment
  SEINET3823284 Image available Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt Trinity Summit, Box Camp 1524 Comment
  HSC55168  Quercus vacciniifolia Gilbert Muth 1979-8-1 12162 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC212981  Quercus vacciniifolia Joseph P. Tracy 1919-9-23 5286 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UCD47406  Quercus vacciniifolia H. L. Mason 1932-7-21 7018 Humboldt East slope of Southfork Mts. On road Arcata to Weaverville, Humboldt County. Comment
Read comments
Oct 6 2006
  CAS-BOT-BC379175  Ranunculus aquatilis var. aquatilis Doris K. Kildale 1926-4-18 1769 Humboldt McClellan Mountain Comment
  HSC70408  Ranunculus aquatilis var. diffusus M. A. Baker 1980-6-7 1833 Humboldt Near Ammon Creek 732 Comment
  UC503026  Ranunculus californicus Joseph P. Tracy 1932-5-10 9927 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC503024  Ranunculus californicus Joseph P. Tracy 1932-5-10 9965 Humboldt Mattole River North Coast Region, Mattole River 15 Comment
  HSC18140  Ranunculus californicus var. californicus R. T. Forester 1963-3-31 37 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC668065  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka; vernal pool 45 Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  RSA183644  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  HSC26638  Ranunculus lobbii Thomas W. Nelson 1971-5-31 447 Humboldt Vernal pond Comment
  UC249650  Ranunculus occidentalis Joseph P. Tracy 1922-4-30 5988 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC99092  Ranunculus occidentalis var. occidentalis Cara Witte 2008-7-2 824 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC69865  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1978-5-28 4089 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  CDA3496  Ranunculus parviflorus J. F. Hart 1964-5-21 Humboldt Garberville district. 0 Comment
  HSC30270  Ranunculus parviflorus David Ferranti 1974-5-6 Humboldt Garden weed at 4360 Union St. Eureka Comment
  UC1116207  Ranunculus pusillus Joseph P. Tracy 1942-5-16 17356 Humboldt Garberville 304 Comment
  UC1103009  Ranunculus pusillus Joseph P. Tracy 1948-6-13 18035 Humboldt halfway between Bridgeville and Blocksburg (pond on creek); Larrabee Creek 457 Comment
  UC160952  Ranunculus repens Joseph P. Tracy 1910-6-5 3150 Humboldt region about Humboldt Bay Northern Coast Region (marshes) 0 Comment
  CHSC1495  Ranunculus repens var. repens M. Underhill 1952-7-13 Humboldt 1 Comment
  CHSC68500  Ranunculus repens var. repens Vernon H. Oswald 1997-4-10 8316 Humboldt Clam Beach between Arcata and Trinidad. On the bank of a creek on the back beach. 30 Comment
  HSC18182  Ranunculus repens var. repens V. G. Vieira 1963-4-24 7 Humboldt Essex Pond Comment
  HSC56212  Ranunculus uncinatus G. L. Clifton, Griswold 1979-8-2 12220 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1196270  Ranunculus uncinatus Joseph P. Tracy 1916-5-7 4687 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC89466  Raphanus sativus P. A. Daly 1986-3-12 104 Humboldt Trinidad Head 61 Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  UC1197997  Rhamnus californica Joseph P. Tracy 1934-8-4 13555 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC592714  Rhamnus californica subsp. californica Carl B. Wolf 1934-6-30 Humboldt back of Shelter Cove 60 Comment
  RSA7735  Rhamnus californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 miles from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CDA35696  Rhamnus californica subsp. occidentalis T. Gallion 1958-7-11 Humboldt Weitchpec. 0 Comment
  RSA232671  Rhododendron macrophyllum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 612 Humboldt Prairie Creek, Redwoods State Park, along Davidson Rd. Comment
  RSA471000  Rhododendron macrophyllum Anstruther Davidson s.n. Humboldt (?) Hutchinson Comment
  UC1121079  Rhododendron occidentale H. L. Person 1930-6-20 Humboldt Bayside Road e of Arcata; Bayside Road Comment
  UC162760  Rhododendron occidentale Joseph P. Tracy 1911-7-6 3340 Humboldt between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  CAS-BOT-BC200377  Rhododendron occidentale var. paludosum L. R. Abrams 1922-6-25 8253 Humboldt Arcata Comment
  HSC41281  Rhododendron occidentale var. paludosum Brad Klipfel 1974-6-25 442 Humboldt Horse Mtn. Comment
  HSC69697  Rhododendron occidentale var. paludosum R. Kalal 1980-6-8 16 Humboldt Azalea State Reserve 52 Comment
  HSC7883  Rhododendron occidentale var. paludosum J. Pursell 1964-10-6 1062 Humboldt Big Lagoon Bog Comment
  HSC7887  Rhododendron occidentale var. paludosum F. B. Plett 1963-4-27 36 Humboldt 1 1/2 mi. N of Trinidad along old Hwy. 101 Comment
  HSC96519  Rhododendron occidentale var. paludosum Gordon Leppig 1998-5-11 759 Humboldt Big Lagoon County Park. 3 Comment
  RSA46883  Rhododendron occidentale var. paludosum Doris K. Kildale 1926-1-3 1485 Humboldt Big Lagoon. Comment
  UC199535  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  UC203883  Ribes bracteosum Joseph P. Tracy 1918-5-28 4939 Humboldt High Prairie Creek Northern Coast Ranges 914 Comment
  UCR139068  Ribes bracteosum E. Brower, S. Marubayashi, E. Perry 1997-5-10 055 Humboldt Intersection of Hwy 299 and Redwood Hwy 12 Comment
  UC1541338  Ribes divaricatum var. pubiflorum Parks and Parks 1932-4-10 Humboldt Blue Slide Van Duzen River Comment
  HSC56265  Ribes lacustre G. L. Clifton, Griswold 1979-8-2 12423 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS79965  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC97311  Ribes laxiflorum M. Mesler 2007-3-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  UC492212  Ribes laxiflorum Joseph P. Tracy 1928-4-29 8421 Humboldt Prairie Creek Northern Coast Ranges 152 Comment
  HSC65621  Ribes lobbii J. P. Smith, J. O. Sawyer 1973-5-12 6688 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC1198925  Ribes lobbii Joseph P. Tracy 1936-8-8 15139 Humboldt ne Hawkins Bar.; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC902100  Ribes lobbii Joseph P. Tracy 1949-6-5 18298 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA84966  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie; Trinity Summit Comment
  HSC34640  Ribes menziesii J. M. Sauser 1975-4-9 2 Humboldt Old Arcata Rd., 2 mi. S of junction with Jacoby Creek Rd. Comment
  HSC59571  Ribes menziesii Rick Lundquist 1979-4-22 28 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  SEINET3825262 Image available Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt Head of Brett Hole 1829 Comment
  UC1193213  Ribes roezlii K. Cuff 1950-10-11 129 Humboldt 7 mi n Honeydew; Quad. 28A4 1005 Comment
  RSA167292  Ribes roezlii var. amictum Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge Comment
  CAS-BOT-BC198898  Ribes roezlii var. cruentum Joseph P. Tracy 1934-3-11 13153 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC198901  Ribes roezlii var. cruentum Thomas W. Nelson; Jane P. Nelson 1977-5-30 3418 Humboldt Growing beside State Route 36 just west of Dinsmore at highway bridge over Van Duzen River 731 Comment
  CAS-BOT-BC198902  Ribes roezlii var. cruentum Kenneth Clark 1980-3-27 55 Humboldt North fork Dead Man's Gulch, Shelter Cove 82 Comment
  HSC20348  Ribes sanguineum C. O. Baker 1962-3-22 12 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  CAS-BOT-BC144691  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-6-27 2226 Humboldt Little Van Duzen River. on Bridgeville - Weaverville road 640 Comment
  HSC103217  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-14 3 Humboldt McKinleyville, west end of Hiller Park. 10 Comment
  HSC22045  Ribes sanguineum var. glutinosum B. D. Rogers, D. E. Anderson 1965-4-1 411 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  RSA0018238  Ribes sanguineum var. glutinosum Lyman Benson 1929-7-19 1876 Humboldt Mouth of Matole [Mattole] River. Comment
  RSA0018243  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick. Comment
  HSC97472  Ribes sanguineum var. sanguineum C. Witte 2007-5-17 32 Humboldt National Forest Road 5N10. 1/2 mile east of intersection with National Forest 1. 1441 Comment
  HSC58107  Ribes viscosissimum G. L. Clifton, Griswold 1979-8-1 12042 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1222908  Rigiopappus leptocladus Joseph P. Tracy 1948-6-13 18059 Humboldt 3 mi w Harris 762 Comment
  HSC69840  Romanzoffia californica R. Kalal 1979-5-6 52 Humboldt Trinidad Head 30 Comment
  HSC84930  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  RSA135397  Romanzoffia californica Volney Rattan 1882-06 s.n. Humboldt Kneeland Prairie. Comment
  HSC26346  Romanzoffia tracyi T. O. Osborne 1970-4-5 80 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  UC702003  Romanzoffia tracyi Harold E. Parks March 1946 24276 Humboldt ocean bluffs at Trinidad Head Comment
  UC1199219  Rorippa curvisiliqua Harold E. Parks and Joseph P. Tracy 1935-6-16 11275 Humboldt lower nw slopes Buck Mountain; lower nw slopes Buck Mountain 792 Comment
  CAS-BOT-BC74505  Rorippa curvisiliqua Doris K. Kildale 1926-4-11 1767 Humboldt Van Duzen River at Alton. 30 Comment
  HSC19615  Rosa californica Lincoln Constance 1934-5-26 654 Humboldt South Fork Eel River, S end of Dyerville Bridge. Comment
  CAS-BOT-BC146487  Rosa gymnocarpa Doris K. Kildale 1927-5-13 3176 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC146489  Rosa gymnocarpa Doris Kildale Gillespie 1931-6-7 10623 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC58243  Rosa gymnocarpa G. L. Clifton, Griswold 1979-8-2 12413 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  CAS-BOT-BC146838  Rosa nutkana L. R. Abrams; R. Bacigalupi 1922-6-25 8275 Humboldt Big Lagoon south of Orick Comment
  HSC19631  Rosa nutkana W. L. Jepson 1936-8-17 17912 Humboldt 2 mi. S of Field's Landing near Still's Ranch Comment
  HSC31638  Rosa nutkana Glenn McGourty 1974-6-1 84 Humboldt Comment
  HSC44122  Rosa nutkana Linda M. Barker, Thomas F. Lyon 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  UC180188  Rosa nutkana var. nutkana Joseph P. Tracy 1914-5-30 4479 Humboldt Alton Northern Coast Region (same locality as Tracy #40000) 30 Comment
  CAS-BOT-BC148347  Rosa pisocarpa Doris K. Kildale 1928-6-24 5238 Humboldt Redwood Creek at Berry's 289 Comment
  JEPS45699  Rosa pisocarpa Joseph P. Tracy 1923-9-16 6550 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC146880  Rosa rubiginosa C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mile from Rohnerville on road to Fortuna 30 Comment
  HSC19623  Rosa rubiginosa D. E. Anderson 1965-9-5 4096 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC1193204  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two mi w Harris Post Office; Quad. 29D3, w of Harris Post Office 853 Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  BLMAR233  Rubus parviflorus Jennifer Anthony-Wheeler 1996-9-26 233 Humboldt King range, growing in moist shade along bearcrk between Nad & Wai campground 548 Comment
  HSC19659  Rubus parviflorus W. R. Brigham 1962-5-20 15 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  HSC22496  Rubus parviflorus G. T. Nordstrom 1966-4-24 11 Humboldt Kneeland-Maple Creek Rd. near jct. with Korbel Rd. Comment
  SEINET4093648  Rubus parviflorus O. M. Clark 1932-1 707 Humboldt South Eureka. Comment
  SEINET5320889  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt North of Orick; North of Orick, Highway 101 reroute, near Redwood Park Comment
  UC906703  Rubus parviflorus Harold E. Parks and Joseph P. Tracy 1942-5-16 11562 Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  UCR275117  Rubus parviflorus Charity A. Hartshorn 2016-5-14 29 Humboldt Arcata Community Forest 244 Comment
  HSC19685  Rubus spectabilis Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  RSA304831  Rubus spectabilis James R. Shevock 1972-3-26 1466 Humboldt Along Hwy 299. 366 Comment
  UC154504  Rubus spectabilis Harley P. Chandler May, 1901 1096 Humboldt Scotia North Coast Ranges, Scotia 60 Comment
  UC902133  Rubus spectabilis Joseph P. Tracy 1948-5-15 17979 Humboldt along Trinity Highway (Willow Creek Canyon, East Fork Willow Creek); Willow Creek Canyon, East Fork Willow Creek 457 Comment
  HSC8607  Rubus ursinus R. E. Hafenfeld 1965-5-9 5 Humboldt Near jct. of Gold Bluff Beach Rd.and Squashan Cr. Comment
  UCD17611  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 054 Humboldt California. Humboldt County: 100 yards west of junction of U.S. 101 on road through Humboldt State Redwood Park. Comment
  POM271075B  Rubus vitifolius Lyman D. Benson 1929-7-15 1815 Humboldt Clam Beach. Trinidad. Comment
  RSA89567  Rubus vitifolius Philip A. Munz 1954-7-23 19865 Humboldt 5 miles SE of Carlotta Comment
  HSC99570  Rudbeckia occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 235 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
  HSC17569  Rumex acetosella D. B. Bader 1963-3-1 37 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC55016  Rumex acetosella Overton, Butler 1979-7-31 11408 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC70987  Rumex californicus Gail Newton 1980-7-20 1650 Humboldt Near Bell Swamps 1426 Comment
  JEPS39885  Rumex conglomeratus Lincoln Constance 1934-5-27 696 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  HSC90647  Rumex crispus Gail Newton 1982-6-10 3604 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC37419  Rumex crispus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 515 Humboldt Along Lost Man Creek. 38 Comment
  SEINET200757  Rumex crispus Joseph P. Tracy 1908-7-30 2806 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 300 Comment
  UC146144  Rumex salicifolius var. crassus Joseph P. Tracy 1906-9-29 2549 Humboldt Samoa Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1100023  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1181 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  UCD92348  Rytidosperma penicillatum A. H. Murphy 1947-6-1 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  HSC4147  Sagina apetala W. L. Jepson 1921-8-7 9337 Humboldt Stone Lagoon Comment
  UC1116232  Sagina apetala Joseph P. Tracy 1948-4-11 17965 Humboldt 2 mi. e. Dyerville (Eel R.); Eel R. 48 Comment
  UC275481  Sagina apetala Joseph P. Tracy 1925-5-30 7015 Humboldt at Kemp's Maple Grove Ranch Bridgeville; Northern Coast Ranges, , Kemp's Maple Grove Ranch 228 Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  UC902094  Sagina saginoides Joseph P. Tracy 1947-8-24 17918 Humboldt near Box Camp Trinity Summit 1676 Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  UC490587  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC103807  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt near bluff below junction of North and South Forks of Eel River Comment
  CAS-BOT-BC103809  Salix exigua Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  POM219693  Salix exigua H. E. Parks 1931-5-14 958 Humboldt Fernbridge. Eel River. 10 Comment
  HSC19943  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  LA208691  Salix exigua var. hindsiana Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt above Trinity River; 1 mi below bridge on Trinity Hwy 152 Comment
  SD992  Salix exigua var. hindsiana Herold E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River, on gravel bars 10 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. 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-BC104106  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC106860  Salix hookeriana W. J. Ferlatte 1967-6-13 1118 Humboldt Clam Beach Lagoon 6 Comment
  CAS-BOT-BC107763  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1216 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107773  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  HSC19952  Salix hookeriana H. E. Parks 1931-5-12 952 Humboldt Samoa, Humboldt Bay 0 Comment
  HSC19969  Salix hookeriana H. E. Parks Sep 1931 1057 Humboldt Trinidad 76 Comment
  HSC38176  Salix hookeriana Thomas W. Nelson 1976-3-5 3286 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC40864  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS14759  Salix hookeriana Joseph P. Tracy 1926-3-14 7388 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  RSA152531  Salix hookeriana Joseph P. Tracy 1948-4-4 17959 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  UC1225923  Salix hookeriana Joseph P. Tracy 1942-7-26 17297 Humboldt near the Redwood House S. Yaeger Creek 609 Comment
  UC275526  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469126  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481350  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa Humboldt Bay Comment
  UC481397  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC512004  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 Comment
  UC709427  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. Camp Grant 48 Comment
  CDA39527  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  POM219697  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 956 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  UC481815  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 270 Humboldt between Miranda and Meyers (S. Fork Eel R., Sylvandale Station); S. Fork Eel R., Sylvandale Comment
  UC481831  Salix laevigata Mrs. H. P. Bracelin 1931-5-2 284 a Humboldt 6 km. s Alton (e of Redwood Hwy.) 20 Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC1196586  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1929-10-20 8682 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC481216  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 996 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC492486  Salix lasiandra subsp. lasiandra Harold E. Parks 1932-4-16 1099 Humboldt Ferndale ca. 16 km. from mouth of Eel R.; , Ferndale Comment
  UC492484  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-4-16 1099 Humboldt ca. 16 km. from mouth of Eel R. Ferndale Comment
  CAS-BOT-BC125216  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1120 Humboldt Cranell 3 Comment
  CAS-BOT-BC128196  Salix lasiandra var. lasiandra Doris K. Kildale 1926-3-7 1528 Humboldt Stephen's Grove, river bar - South Fork of Eel River 60 Comment
  CAS-BOT-BC107600  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS12917  Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS14752  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1196617  Salix lasiolepis Joseph P. Tracy 1935-4-14 13780 Humboldt Miranda, along South Fork of Eel River 121 Comment
  UC1225927  Salix lasiolepis Joseph P. Tracy 1947-6-28 17755 Humboldt Bridgeville Van Duzen River 198 Comment
  UC275524  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 Humboldt Redwood Creek, at Berry's 274 Comment
  UC481313  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490544  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC490546  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC504030  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506391  Salix lasiolepis Joseph P. Tracy 1933-2-26 10914 Humboldt along S. Fork Eel R. Miranda; North Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC512018  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River 152 Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CAS-BOT-BC107294  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-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107410  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3148 Humboldt Redwood Creek at Berry's 289 Comment
  SBBG29044  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt banks of Eel River, Fortuna 10 Comment
  CAS-BOT-BC125619  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt Junction of the North and South Forks of Eel River Comment
  CAS-BOT-BC125628  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  HSC20058  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  LA208934  Salix melanopsis Harold E. Parks; 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  POM220142  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 973 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC481170  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481284  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481286  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481825  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC55940  Salix melanopsis J. P. Tracy 1900-9-9 943 Humboldt Yager Creek near Hydesville (along slough); Yager Creek Comment
  CAS-BOT-BC213695  Salix parksiana Harold E. Parks 1931-5-14 0962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC129210  Salix piperi Doris K. Kildale 1929-2-28 6951 Humboldt Mad River at Essex Comment
  POM89803  Salix purpurea Joseph P. Tracy 1919-5-25 5137 Humboldt Humboldt Bay. Ryan's Slough 15 Comment
  CAS-BOT-BC129126  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC98583  Salix scouleriana Cara Witte 2008-7-25 938 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1324 Comment
  JEPS89298  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC1196698  Salix scouleriana Joseph P. Tracy 1921-1-15 5412 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC512088  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1219 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  UC469468  Salix sitchensis Joseph P. Tracy 1931-11-8 9748 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481214  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC481383  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Van Duzen R. Alton; , Alton 15 Comment
  CDA39587  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt North Spit Swamp, west side of highway. Comment
  UC1173581  Salix tracyi Joseph P. Tracy 1939-8-5 16392 Humboldt Van Duzen River at Dinsmore's 737 Comment
  CAS-BOT-BC176897  Salsola tragus Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  RSA113848  Sambucus callicarpa E. K. Balls 1956-2-16 21457 Humboldt Near first overhead bridge on road to Crannell, 0.5 miles east of Highway 101 15 Comment
  RSA1808  Sambucus callicarpa C. B. Wolf 1930-10-26 1765 Humboldt 1 mile south of Trinidad 91 Comment
  HSC56447  Sambucus nigra subsp. caerulea Griswold, Butler 1979-7-12 7197 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UCSB22664  Sambucus racemosa var. racemosa Jensen, Karen 1965-4-14 Humboldt Along Tompkin's Hill Rd., 2.7 mi. from Hwy. 101 turnoff, northeast of Fortuna 91 Comment
  HSC104438  Sanguisorba officinalis J. Martin, Bianca Hayashi, Cheri Sanville 2012-8-28 Humboldt Northern end of Christmas Prairie Lake Comment
  HSC49243  Sanicula arctopoides Sheila Logan 1978-4-7 5 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS284  Sanicula crassicaulis Lincoln Constance 1934-5-24 642 Humboldt Bull Creek Region, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River 121 Comment
  UC1006710  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  OBI55124  Sanicula tracyi Joseph P. Tracy 1947-6-25 17717 Humboldt Dinsmore's along Van Duzen Rivers opposite Black Mtn 762 Comment
  UC154132 Image available Sanicula tracyi Joseph P. Tracy 1908-6-30 2740 Humboldt nw slope Buck Mountain; Northern Coast Ranges; NW slope of Buck Mt., Humboldt Co. 762 Comment
  UC1368468  Sanicula tuberosa R. K. Gierisch and D. H. Esplin 1969-7-1 3531 Humboldt Six Rivers Forest/Experimental Area, Grouse Mt. Grouse Mt.; Six Rivers Forest/Experimental Area, Grouse Mt. 1584 Comment
  UCR39791  Sanicula tuberosa D. K. Imper 1982-7-13 s.n. Humboldt Six Rivers Nat. Forest, l mi. 6' north of Chaparral Mtn. 1375 Comment
  UC668103  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  RSA54147  Saponaria officinalis H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Orleans district Comment
  UC1988888  Saxifraga mertensiana Joseph P. Tracy 1927-3-27 7854 Humboldt near South Fork (Trinity River Valley along river); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET6168250  Saxifraga mertensiana J. P. Tracy 1911-6-4 3217 Humboldt Northern coast region, along Little River, 5 miles from the coast 122 Comment
  POM87944  Schoenoplectus acutus var. occidentalis Le Roy Abrams, Rimo C. Bacigalupi 8272 Humboldt Big Lagoon, south of Orick. Comment
  HSC36316  Schoenoplectus americanus Rich Barcelona 1973-11-19 191173 .4 Humboldt Big Lagoon Comment
  RSA91480  Schoenoplectus maritimus F. W. Peirson 1923-7-11 3660 Humboldt Flats north of Eureka. Comment
  CAS-BOT-BC111696  Schoenoplectus pungens var. badius D. E. Breedlove 1962-6-7 3053 Humboldt On extensive sand dunes 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay. Comment
  UC668012  Scirpus cernuus Joseph P. Tracy 1934-7-13 13386 Humboldt Trinidad 91 Comment
  UC1541345  Scirpus maritimus Harold E. Parks September 1934 5201 Humboldt Big Lagoon Comment
  HSC59434  Scirpus microcarpus Kenneth Clark 1979-4-21 141 Humboldt Clam Beach, 3.5 mi. N of McKinleyville on Hwy. 101 Comment
  UCSB55386  Scirpus microcarpus Wolf, Carl 1937-9-11 Humboldt Redwood Highway, 3 mi. N of Orick at Davison's Ranch; on Prairie Creek 60 Comment
  CAS-BOT-BC361311  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood 76 Comment
  HSC15633  Scoliopus bigelovii D. E. Anderson 1963-3-23 2397 Humboldt Bald Mtn. Rd. Comment
  HSC15635  Scoliopus bigelovii D. E. Anderson 1962-3-17 1938 Humboldt Comment
  SEINET12050496  Scoliopus bigelovii F. H. Utech 1988-1 88 -292 Humboldt 1.5 mi N of Bridgeville on Road from Bridgeville to Kneeland, along Brown Creek 350 Comment
  SEINET12050517  Scoliopus bigelovii F. H. Utech 1988-1 88 -019 Humboldt along US 101 near junction of Durphy Creek & South Fork Eel River 60 Comment
  SEINET12051381  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -279 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1125709  Scrophularia californica H. L. Person 1932-7-16 Humboldt Hwy n of Trinidad; Rock Point Quadrangle Comment
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Aug 3 2007
  UC582593  Scrophularia californica Joseph P. Tracy 1933-8-22 12980 Humboldt Eureka 6 Comment
  UC1222777  Scrophularia californica subsp. californica Joseph P. Tracy 1950-6-8 18752 Humboldt beach s of Cape Mendocino Comment
  RSA167233  Scrophularia californica var. californica Joseph P. Tracy 1950-6-8 18752 Humboldt Beach south of Cape Mendocino. Comment
  POM126380  Scutellaria antirrhinoides Chesnut, E. R. Drew 1888-7-10 s.n. Humboldt Jarnigan s. Comment
  UC1239696  Scutellaria antirrhinoides Joseph P. Tracy 1933-7-9 12654 Humboldt Brannan Mountain; Northern Coast Ranges, Brannan Mountain 1066 Comment
  HSC35699  Scutellaria californica Thomas W. Nelson, B. Reinhardt 1975-7-30 2106 Humboldt Beside Rd. out Whiting Ridge Comment
  UC32583  Scutellaria siphocampyloides Chesnut and Drew 1888-7-29 Humboldt Louse Creek Comment
  UC154010  Scutellaria tuberosa Joseph P. Tracy Jul 27 1908-Jul 30 1908 2717 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC79269  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Bennett Peak Comment
  HSC65898  Sedum laxum subsp. heckneri M. A. Baker 1980-6-16 1926 Humboldt Near Monks Camp. 1097 Comment
  HSC79346  Sedum laxum subsp. heckneri D. K. Imper 1983-6-17 Humboldt 1 mi. S of Cedar Camp (road to Mosquito Lake), on FS Rd. 12N12, also located along FS Rd. 12N12 4 mi. N 1159 Comment
  HSC57121  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-25 9867 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC14456  Sedum radiatum Chesnut and Drew August, 1888 Humboldt Comment
  UC205171  Sedum spathulifolium Harley P. Chandler June, 1901 1379 b Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  RSA0081472  Sedum spathulifolium C. B. Wolf 1934-7-2 5858 Humboldt One mile from Bald Mt. on road to Korbel. 762 Comment
  OBI1550  Selaginella oregana Lawrence L. Kiefer 1963-8-6 769 Humboldt Patrick's Point State Park 61 Comment
  UC519319  Selaginella oregana Joseph P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake. Rock ledges on river bank 15 Comment
  HSC100445  Senecio bolanderi Carl C. Marshall Jul 1885 133 Humboldt Near Jarnigan's. Comment
  HSC45580  Senecio integerrimus Diane L. Reed 1978-4-22 16 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC1199245  Senecio integerrimus var. major Joseph P. Tracy 1933-6-13 12585 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges 1219 Comment
  UC91378  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  UC1199238  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1934-6-27 11034 Humboldt Redwood Creek at Berry's; Redwood Creek at Berry's 274 Comment
  UC1223151  Senecio sylvaticus Joseph P. Tracy 1949-8-11 18467 Humboldt 2 to 6 mi s from Grouse Mt. (s of crossing of electric power line, e of headwaters of Redwood Creek); Kinsey Ridge 1280 Comment
  UC128739  Senecio sylvaticus Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5446 Humboldt near Elk Prairie; north-western California Comment
  UC1199234  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 A Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS48271  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide on Van Duzen River 91 Comment
  SEINET10612372  Sequoia sempervirens Joseph P. Tracy 1940-10-17 Tracy 16770 Humboldt Dyerville 49 Comment
  CAS-BOT-BC364783  Sericocarpus oregonensis subsp. oregonensis Doris K. Kildale 1926-8-22 2589 Humboldt On Orick - Martin's Ferry road 716 Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  UCD92848  Setaria viridis Don Hager 1957-9-25 s.n. Humboldt Titlow Hill, 20 miles southwest of Willow Creek. Comment
  JEPS12650  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  UCR39801  Sherardia arvensis L. P. Janeway 1984-5-13 775 Humboldt Along the Kneeland/Bridgeville Road c. 15 mi. east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek 610 Comment
  HSC96580  Sidalcea malachroides Gordon Leppig, Todd Treadwell 2005-6-8 2248 Humboldt Blue Slide Creek watershed, Pacific Lumber Co. land. 245 Comment
  RSA168965  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  UC906705  Sidalcea malviflora subsp. asprella Harold E. Parks and Joseph P. Tracy 1942-7-1 11577 Humboldt Dinmore's 762 Comment
  UC1197976  Sidalcea malviflora subsp. patula Joseph P. Tracy 1927-6-18 8180 Humboldt hills w Petrolia; Northern Coast Ranges, w of Petrolia 152 Comment
  UC176968  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3598 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  CAS-BOT-BC5793  Sidalcea oregana subsp. eximia Joseph Prince Tracy 1907-6-25 2578 Humboldt In valley of Elk River, region about Humboldt Bay 152 Comment
  HSC32097  Silene bolanderi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5698 Humboldt McKeown Ranch, N of Dinsmore Comment
  POM118650  Silene californica Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC1198353  Silene californica Joseph P. Tracy 1938-7-7 16040 1/2 Humboldt Grouse Mountain 1524 Comment
  RSA12455  Silene californica C. B. Wolf 1934-6-30 5838 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  RSA185758  Silene californica John H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junction with Klamath River. Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1537311  Silene gallica Gordon H. True Jr. 1936-5-11 461 Humboldt 12 mi w Miranda (e slope Elk Ridge); w of Miranda, e slope Elk Ridge 457 Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  UC183561  Silene hookeri Joseph P. Tracy 1913-6-20 4234 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  CAS-BOT-BC181235  Silene hookeri subsp. bolanderi T. Worley; M. Mill; F. Rosenthal 1985-4-20 37 Humboldt Burnt Ranch Campground, Shasta-Trinity Nat'l Forest 432 Comment
  HSC4163  Silene laciniata subsp. californica Francis Winter 1960-5-7 Humboldt 2 mi. E of Pine Ridge Summit along hwy. 610 Comment
  HSC44756  Sisyrinchium bellum Maralyn O'Meara 1972-6-8 83 Humboldt Along Bald Hills Rd. 16.4 mi. E of junction with Hwy. 101 Comment
  RSA366962  Sisyrinchium bellum Bonnie C. Templeton 1964-6-13 10183 Humboldt Near old Highway 101 to Trinidad Comment
  HSC23117  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC91874  Sisyrinchium californicum E. Mackey 1986-5-13 Humboldt Patrick's Point State Park Comment
  UC162691  Sisyrinchium californicum J. P. Tracy 1911-6-25 3247 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS86131  Smilacina racemosa Wayne Roderick 1966-5-7 Humboldt 5 mi e Carlotta 30 Comment
  HSC89464  Solanum americanum P. A. Daly 1986-2-23 52 Humboldt Along trails at Trinidad Head 6 Comment
  HSC21297  Solanum aviculare Larry Berti 1968-10-13 Humboldt Comment
  HSC21308  Solanum nigrum Francis Morrell 1949-5-30 35 Humboldt Weitchpec Comment
  HSC98036  Solanum parishii Cara Witte 2007-7-19 548 Humboldt Ammon Ridge Rd., 2 mi. E of intersection with National Forest 1. 1453 Comment
  HSC21316  Solanum triflorum D. E. Anderson 1962-11-7 2342 Humboldt Near Trinity Hospital Comment
  POM237410  Solidago canadensis subsp. elongata H. E. Parks, S. T. Parks 1937-09 24081 Humboldt Spruce Cove, Trinidad. 64 Comment
  HSC58054  Solidago elongata G. L. Clifton, Griswold 1979-8-1 11920 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC58346  Solidago elongata Overton, Butler 1979-8-2 12674 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1199318  Solidago elongata Joseph P. Tracy 1921-8-21 5943 Humboldt mouth South Fork of Trinity (near Willow Creek, Trinity River Valley); Northern Coast Ranges, Trinity River Valley, mouth South For 152 Comment
  UC205162  Solidago elongata Joseph P. Tracy 1919-9-22 5260 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  HSC49092  Solidago spathulata Patricia Shesgreen 1978-8-12 137 Humboldt Along Hwy. 255, 1/4 mi. S of Samoa Bridge, Samoa Comment
  SEINET201025 Image available Solidago spathulata J. P. Tracy 1901-8-7 1268 Humboldt Samoa, opp. Eureka. Comment
  HSC35992  Solidago velutina subsp. californica Thomas W. Nelson, James Nelson 1975-9-1 2190 Humboldt Eel River at High Rock State Park Comment
  SEINET200989  Sonchus asper J. P. Tracy 1903-8-2 1925 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC43414  Sonchus asper R. Sutherland 1978-2-18 3 .18278 Humboldt S side mouth of Mattole River 9 Comment
  SEINET200988  Sonchus oleraceus Joseph P. Tracy 1903-8-2 sn Humboldt At Eureka 0 Comment
  UC164789  Sonchus oleraceus J. P. Tracy 1903-8-2 1926 Humboldt immediate vicinity Eureka 0 Comment
  UCD136155  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC40944  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1222306  Sorbus californica Joseph P. Tracy 1951-6-14 19419 Humboldt Snow Camp Comment
  HSC21347  Sparganium emersum John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  HSC90265  Spergularia canadensis Jean Hanson 1980-5-24 70 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  SJSU8458  Spergularia canadensis var. occidentalis H. T. Harvey 1977-7-6 614 Humboldt South Spit, Humboldt Bay Comment
  CAS-BOT-BC390302  Spergularia macrotheca var. macrotheca Alice Eastwood; John Thomas Howell 1936-7-3 3782 Humboldt Eureka Comment
  HSC39156  Spergularia rubra D. E. Anderson, J. P. Smith 1971-6-28 - 1269 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  RSA472780  Spiraea douglasii Emery M. Whilton 1941-6-25 s.n. Humboldt Scotia. Comment
  UC666997  Spiranthes porrifolia Joseph P. Tracy 1930-6-15 8767 Humboldt summit of ridge between Dobbyn Creek and Alder Point (near Alder Point) 304 Comment
  BLMAR221  Spiranthes romanzoffiana Jennifer Anthony-Wheeler 1996-7-26 221 Humboldt King range, growing with annual & perrenial grasses 91 Comment
  UC668214  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  JEPS63032  Stachys ajugoides var. rigida Milo S. Baker 1923-7-20 72 Humboldt 4 mi e Eureka; North Coast Comment
  UC153991  Stachys ajugoides var. rigida Joseph P. Tracy 1906-6-24 2497 Humboldt region about Humboldt Bay (s side of Humboldt Hill); Northern Coast Region 0 Comment
  UC668216  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-9 15874 Humboldt 2 mi s Blocksburg 304 Comment
  UCLA71114  Stachys ajugoides var. rigida C. Epling Jun 1938 Humboldt above Redwood Creek Comment
  BLMAR563  Stachys bergii Jennifer Wheeler 2009-7-21 563 Humboldt Headwaters Forest Reserve, along Elk River trail 60 Comment
  HSC21956  Stachys rigida var. rigida John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  HSC100419  Stellaria longipes Carl C. Marshall May 1886 227 Humboldt Near H. and S to mill E of Arcata. Comment
  HSC12712  Stellaria media M. J. Athey 1970-11-20 1 Humboldt Along 1st. St. in Westhaven, Trinidad Comment
  HSC4275  Stellaria media W. F. Nickel 1965-4-12 Humboldt HSC Campus behind biological sciences building Comment
  HSC70500  Stenanthium occidentale Gail Newton 1980-7-20 1618 Humboldt Near Bell Swamps 1426 Comment
  HSC32340  Stipa occidentalis var. californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5641 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC73047  Stipa occidentalis var. californica M. A. Baker 1980-7-15 2943 Humboldt Near Whiting Ridge. 1341 Comment
  HSC58570  Stipa occidentalis var. occidentalis G. L. Clifton, Griswold 1979-7-26 10297 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC87618  Streptanthus tortuosus Volney Rattan 1878-1-1 s.n. Humboldt Unpsecified. Comment
  HSC103294  Streptanthus tortuosus Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest; ~ 1.7 mi. south of Berry Summit along Titlow Hill Road.; ~ 1.4 mi. west-northwest of Horse Mtn. Radio Tower. 980 Comment
  UC1198799  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1938-6-13 15909 Humboldt on exposed rock ledge near Cold Springs; North Coast Ranges, Grouse Mountain 1432 Comment
  HSC58078  Streptopus amplexifolius G. L. Clifton, Griswold 1979-8-1 11980 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  HSC102587  Streptopus amplexifolius var. americanus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1574 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC17760  Stuckenia pectinata Rollin Sparrowe 1962-5-16 25 Humboldt S of road Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC269572  Symphoricarpos albus var. laevigatus Carl D. Duncan 1920-9-22 337 Humboldt Hoopa 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
  JEPS13645  Symphoricarpos mollis Joseph P. Tracy 1932-7-11 10415 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC99166  Symphyotrichum chilense Carl B. Wolf 1937-9-9 9312 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  CAS-BOT-BC99160  Symphyotrichum chilense E. K. Balls 1950-7-17 14927 Humboldt Redwood Hwy, 4 mi. north of Loleta 7 Comment
  HSC24019  Symphyotrichum chilense R. A. Vanbianchi 1971-9-10 79 Humboldt Junction of Fieldbrook Rd. and old Hwy. 299 Comment
  JEPS40779  Symphyotrichum subspicatum W. L. Jepson 1936-8-17 17913 Humboldt 2 mi s, near Still's Ranch Field's Landing Comment
  HSC36490  Symphyotrichum subspicatum Thomas W. Nelson, James Nelson 1975-9-3 2195 Humboldt At Rainbow Swinging Bridge Comment
  UC1198052  Synthyris reniformis Joseph P. Tracy 1942-6-23 17230 Humboldt Trinity Summit near Box Camp; Trinity Summit 1524 Comment
  SEINET13750617  Synthyris reniformis J. P. Tracy 1906-4-15 2408 Humboldt Northern Coast Ranges, Bald Mt. near Korbel. 610 Comment
  UC1198059  Synthyris reniformis Joseph P. Tracy 1909-5-16 2969 Humboldt Coast bluffs 3 mi n Trinidad; Northern Coast Ranges 30 Comment
  UC582544  Synthyris reniformis Joseph P. Tracy 1927-5-30 8079 Humboldt vicinity of Garberville (along Redwood Creek); Redwood Creek 121 Comment
  CAS-BOT-BC376728  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18078 Humboldt 1.2 miles south of Orrick [Orick] Comment
  HSC6243  Tanacetum bipinnatum H. E. Parks Sep 1941 24216 Humboldt Little River Comment
  UC727173  Tanacetum camphoratum A. A. Heller 1924-7-23 13875 Humboldt Little River Comment
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Sep 29 2006
  RSA28303  Tanacetum camphoratum E. K. Balls, Percy C. Everett 1953-10-11 18636 Humboldt Big Lagoon on South Shore. 2 Comment
  UC1223046  Taraxacum officinale Joseph P. Tracy 1951-6-24 19542 Humboldt Ashland Ridge Kneeland Prairie 762 Comment
  UC1196935  Taraxia ovata Joseph P. Tracy 1946-5-30 17545 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC32945  Tauschia kelloggii Thomas W. Nelson, James Nelson 1973-5-28 956 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC34920  Tauschia kelloggii Thomas W. Nelson, James Nelson 1975-5-24 1840 Humboldt McKeown Ranch N of Dinsmore, near Anderson's ford Comment
  UC642290  Tauschia kelloggii Joseph P. Tracy 1936-6-21 14995 Humboldt Iaqua 609 Comment
  HSC21572  Tauschia kelloggii Francis Winter 1960-4-24 Humboldt Hog Ranch Ridge, 8 mi. NW of Hoopa Indian Reservation 610 Comment
  HSC55212  Taxus brevifolia Walter Overton 1979-8-1 12351 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  LA5974  Taxus brevifolia L. Miller; 1934-8-25 Humboldt Carlotta, Van Duzen River Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  UC162828  Thalictrum occidentale Joseph P. Tracy 1905-4-2 2154 Humboldt now Arcata; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC18237  Thalictrum polycarpum S. S. Stutz 1963-5-18 61 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC77704  Thelypteris Joseph P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC1198813  Thlaspi californicum Joseph P. Tracy 1921-5-30 5483 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC14398  Thlaspi californicum Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  CAS-BOT-BC81313  Thuja plicata Doris K. Kildale 1926-8-28 2567 Humboldt Wildcat ridge, west of Ferndale near Boynton's 457 Comment
  HSC13053  Thuja plicata D. Santana, C. Kline Oct 1970 9 Humboldt HSC Campus Comment
  UC63991  Thuja plicata Mrs. M. H. Manning 1901-10-1 Humboldt Comment
  HSC41607  Tiarella trifoliata D. E. Anderson, J. P. Smith 1971-6-18 - 1054 Humboldt 1 mi. W of Lord Ellis Summit Comment
  HSC55614  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-23 9503 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC56240  Tiarella trifoliata var. unifoliata Walter Overton 1979-8-1 12337 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  JEPS49715  Tiarella trifoliata var. unifoliata Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC154080  Tolmiea diplomenziesii J. P. Tracy 1900-5-30 832 Humboldt immediate vicinity Eureka 0 Comment
  UC180231  Tolmiea diplomenziesii Joseph P. Tracy 1914-8-23 4589 Humboldt near Forks of Elk River (Humboldt Bay Region); Northern Coast Region 0 Comment
  UCSC000695  Tonella tenella J. W. Blankinship 1893-6-20 s.n. Humboldt Larrabee Creek Comment
  BLMAR192  Torilis arvensis Donald Hazlett 1994-6-7 192 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC34707  Torilis arvensis Thomas W. Nelson 1974-7-20 1698 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC79551  Torilis arvensis Kenneth Clark 1980-6-14 668 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  JEPS14238  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petolia and Ocean) 152 Comment
  CAS-BOT-BC169180  Toxicodendron diversilobum Doris K. Kildale 1926-9-9 2676 Humboldt Van Duzen River between Sting's Station & Bridgeville, Bar W Ranch 158 Comment
  HSC63227  Toxicodendron diversilobum M. A. Baker 1978-6-6 465 Humboldt Weitchpec Comment
  IRVC21927  Toxicodendron diversilobum J. W. Johnson Jul 1962 1397 Humboldt Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve. Comment
  CAS-BOT-BC377101  Tragopogon porrifolius Doris K. Kildale 1925-3-23 587 Humboldt Eureka 30 Comment
  HSC75391  Trautvetteria caroliniensis J. O. Sawyer, M. A. Ericksen 1980-7-18 3639 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC49054  Trichostema lanceolatum Patricia Shesgreen 1978-7-30 122 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  HSC32534  Trichostema laxum Thomas W. Nelson 1973-9-3 1128 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  BLMAR156  Trientalis latifolia Donald Hazlett 1994-6-7 156 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC17934  Trientalis latifolia J. Sandborg, F. Sandborg May 1968 5 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  HSC17936  Trientalis latifolia D. E. Anderson 1965-5-8 3653 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  HSC70781  Trientalis latifolia Gail Newton 1980-7-14 1515 Humboldt Near Deadman Ridge 1097 Comment
  SEINET8729732 Image available Trientalis latifolia H. E. Parks, S. T. Parks 1952-1 7548 A Humboldt Spruce Cove, Trinidad. 0 Comment
  UC147171  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1412 Humboldt Klamath River North Coast Ranges 243 Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  POM214880  Trifolium cyathiferum Joseph P. Tracy 1932-6-14 10150 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC77333  Trifolium dubium L. P. Janeway 1983-4-30 239 Humboldt 21 Comment
  UC1602084  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-8 8728 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC495649  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC303192  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  POM214885  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad. 15 Comment
  UC1197506  Trifolium microdon Joseph P. Tracy 1917-5-30 4800 Humboldt Little River Beach Northern Coast Region 6 Comment
  UCD109372  Trifolium repens Tofsrud 1948-9-1 s.n. Humboldt 3 mi. S. of Scotia. Comment
  UC165592  Trifolium variegatum var. variegatum Harley P. Chandler May, 1901 1169 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1223311  Trifolium willdenovii Joseph P. Tracy 1934-4-8 13170 Humboldt betw Miranda and Redway South Fork of Eel River Comment
  HSC31739  Trifolium willdenovii Donald Spalinger 1974-5-12 57 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  UC1223322  Trifolium willdenovii Joseph P. Tracy 1935-6-8 13945 Humboldt along hwy (at n end of lagoon); Big Lagoon Comment
  UC160943  Trifolium willdenovii Joseph P. Tracy 1903-5-24 1910 Humboldt Alder Point Northern Coast Ranges (Eel River) 152 Comment
  HSC15194  Trifolium wormskioldii Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  HSC15196  Trifolium wormskioldii J. W. Bosworth 1965-5-14 50 Humboldt 1 mi. N of Fairhaven Comment
  RSA167422  Trifolium wormskioldii Joseph P. Tracy 1938-6-12 16056 Humboldt Fields Landing. Moist flats along edges of foothills, 2 miles south of town. 6 Comment
  UC201372  Trifolium wormskioldii Joseph P. Tracy 1918-7-3 4991 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  HSC37965  Triglochin concinna Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  CAS-BOT-BC451804  Triglochin maritima Joseph P. Tracy 1934-7-20 13466 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC451808  Triglochin maritima Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  RSA18064  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  HSC101807  Trillium albidum Kjirsten A. Wayman 2012-4-1 305 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  CHSC24834  Trillium ovatum A. D. Launer 1976-4-11 1 Humboldt On e hillside of Blocksburg Cemetery, ca. 30 yds s of Cemetery Rd, 200 yds w of Alderpoint Rd. in Blocksburg. 464 Comment
  CHSC24865  Trillium ovatum W. A. Vaccaro 1976-4-4 1 Humboldt Population ca. 300 yds ne of intersection of Cedar St. and W. St., Cutten. 45 Comment
  HSC37360  Trillium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 490 Humboldt Along Lost Man Creek. 38 Comment
  SD56735  Trillium ovatum Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  HSC24053  Trillium ovatum subsp. oettingeri J. O. Sawyer 1971-6-16 2387 Humboldt Lipps Camp 1433 Comment
  CAS-BOT-BC521320  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  SEINET10906254  Triodanis biflora Chandler CHANDLER 1415 Humboldt Klamath River 427 Comment
  SEINET12324840  Triodanis biflora H. P. Chandler 1901-1 1415 Humboldt North Coast Ranges, Klamath River 427 Comment
  UC902254  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1941-4-2 16805 Humboldt near Samoa (on Humboldt Bay, Sand Dunes); on Humboldt Bay 6 Comment
  HSC103298  Triphysaria pusilla Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3009 Humboldt Six Rivers National Forest; ~ 0.3 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1386 Comment
  HSC27022  Triphysaria versicolor subsp. versicolor Brad Klipfel 1972-5-5 1 Humboldt S of Lanphere's barn, Humboldt Bay Comment
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC99056  Trisetum canescens Cara Witte 2008-7-10 847 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  POM126097  Trisetum canescens Joseph P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River, in woods. Comment
  HSC13410  Trisetum canescens D. C. Juve 1964-5-16 45 Humboldt 1 mi. N of Tish-tang Ranger Station on Hwy. 96. Comment
  SEINET8719521 Image available Trisetum cernuum Unknown 1952-1 7551 Humboldt Spruce Grove, Trinidad. Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  CAS-BOT-BC526354  Triteleia laxa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC3060  Triteleia laxa R. Spellenberg 1964-6-15 416 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  UC1103154  Triticum vulgare Joseph P. Tracy 1916-8-20 4751 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC37394  Tsuga heterophylla Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 487 Humboldt Along Lost Man Creek. 38 Comment
  UCD67633  Tsuga heterophylla D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  CAS-BOT-BC213076  Ulex europaeus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  HSC59117  Umbellularia californica Terry Roth 1979-5-24 85 Humboldt 0.25 mi. down N Bank Rd. from its junction with Hwy. 10 exit at residence 30 Comment
  HSC97590  Umbellularia californica Steven Lee 2004-4-26 32 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  SEINET12104679  Umbellularia californica E. A. York 1990-1-10 2667 Humboldt USGS Redwood Field Station, Arcata Comment
  UC1239526  Uropappus lindleyi Joseph P. Tracy 1913-6-25 4339 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  RSA167411  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. Below Orleans 8 miles. 122 Comment
  CAS-BOT-BC193958  Vaccinium cespitosum L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  JEPS58733  Vaccinium cespitosum Harley P. Chandler May 1901 1181 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1197774  Vaccinium cespitosum J. P. Tracy 1901-4-21 1036 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  UC1197778  Vaccinium cespitosum Joseph P. Tracy 1925-7-5 7176 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC154042  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  HSC59436  Vaccinium ovatum Kenneth Clark 1979-3-31 19 Humboldt 0.1 mi. E of end of Granite Ave, Arcata 30 Comment
  RSA46850  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge near Blacksburg. Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  UC1537151  Vaccinium ovatum Gordon H. True Jr. 1936-5-11 467 Humboldt 8 mi w Miranda; Salmon Creek 152 Comment
  CAS-BOT-BC199415  Vaccinium parvifolium Harley P. Chandler 1901-5-1 1182 Humboldt Humboldt Bay 30 Comment
  UC615045  Vaccinium parvifolium Beryl O. Schreiber 1934-6-5 1135 Humboldt 15 miles east of Blue Lake road to Redding Comment
  UCD118162  Vaccinium parvifolium T. I. Storer 1931-7-1 2222 Humboldt Coast. Comment
  UC1239584  Valeriana sitchensis subsp. scouleri Mrs. R. D. Douglass 1919-5-8 Humboldt near Ferndale; Nothern Coast Region Comment
  HSC102568  Vancouveria hexandra M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1555 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC59144  Vancouveria hexandra Terry Roth 1979-5-20 64 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC49387  Vancouveria hexandra R. York 1979-4-9 213 Humboldt Behind Humboldt State University Comment
  RSA189781  Vancouveria hexandra Noel Holmgren, James L. Reveal 1966-6-8 2659 Humboldt Coast Range, east of Arcata, 1.5 miles south of Korbel. 274 Comment
  RSA247145  Vancouveria hexandra Gary D. Wallace 1971-7-29 948 Humboldt Prairie Creek Redwoods St. Pk. along Zig Zag Trail #3 leading W from Hwy. 101. Comment
  HSC67545  Vancouveria planipetala J. P. Smith, Steve Selva 1970-6-14 3835 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  SBBG46472  Vancouveria planipetala K. K. Muller 1954-6-21 635 Humboldt Olson Crk, 2 mi ENE of Mad River Comment
  SEINET12094715  Vancouveria planipetala F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -281 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UCD95098  Vancouveria planipetala H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  UC1173642  Veratrum californicum var. californicum Joseph P. Tracy 1934-6-21 13244 Humboldt 2 mi s Field's Landing (at Still Ranch) 6 Comment
  UC153968  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt 1.5 mi s Field's Landing; Humboldt Bay Region 0 Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC57096  Veratrum insolitum Overton, Butler 1979-7-24 9820 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC100694  Verbena prostrata Carl C. Marshall Jul 1887 327 Humboldt Dry interior valleys. Comment
  HSC99387  Veronica americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 36 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS16845  Veronica americana W. L. Jepson 1932-7-30 16452 Humboldt Bull Creek 121 Comment
  UC175797  Veronica americana Joseph P. Tracy 1912-6-9 3685 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC28222  Veronica americana John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  RSA245265  Veronica americana John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of jct of Guintoli Ln. and West End Road. Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC21213  Veronica persica R. A. Eagle 1964-4-15 32 Humboldt Just off campus of HSC near elementary school Comment
  HSC21215  Veronica persica J. L. Baker 1965-3-9 1 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  RSA20855  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mile S of Fortuna. 15 Comment
  HSC36886  Veronica serpyllifolia Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  JEPS5706  Veronica serpyllifolia subsp. humifusa Rimo Bacigalupi with L. Constance, Joe Tracy, Reid Moran, R. Rodriguez and Sherwin Carlquist 1951-6-14 3412 Humboldt at Snow Camp below Snow Camp Mountain (between Mad River and Redwood Creek (Bald Mountain Ridge)); Snow Camp 1432 Comment
  UC147900  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1907-6-10 2565 Humboldt immediate vicinity of Eureka 0 Comment
  HSC2102  Vicia americana var. americana Elrid H. Spinas 1948-6-16 54 Humboldt Horse Mtn. Comment
  HSC57925  Vicia americana var. americana Muth 1979-7-31 11550 Humboldt Near Tish Tang A Tang Creek, S. Fork 1417 Comment
  UC1197462  Vicia americana var. americana Joseph P. Tracy 1933-6-24 12613 Humboldt Big Lagoon 91 Comment
  UCSB16530  Vicia hirsuta Breedlove, Dennis 1961-7-4 Humboldt North bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  HSC44738  Vicia sativa subsp. sativa Maralyn O'Meara 1972-6-8 86 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  RSA750840  Vicia sativa subsp. sativa Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UCD108796  Vicia tetrasperma Frederica Bowcutt 1989-5-23 1331 b Humboldt Sinkyone Wilderness State Park. Bear Harbor, 2.5 air miles SE of Needle Rock ranch house, 4 air miles SE of Four Corners, 15 air miles SW of Garberville. Old home sites. 12 Comment
  JEPS50434  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  RSA256721  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  POM118644  Viola glabella Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC502935  Viola glabella Joseph P. Tracy 1932-7-17 10682 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  SEINET6942419  Viola hallii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC1198428  Viola lobata subsp. integrifolia Joseph P. Tracy 1949-8-4 18421 1/2 Humboldt Mud Springs; Trinity Summit, Mud Springs 1341 Comment
  UC668247  Viola lobata subsp. integrifolia Joseph P. Tracy 1937-7-2 15408 Humboldt Head of Little Hors-Linto Creek; Trinity Summit. 1371 Comment
  CAS-BOT-BC530123  Viola lobata subsp. integrifolia J. H. Thomas 1949-6-13 907 Humboldt along trail between Le Perron Flat and Whiteys Peak; Six Rivers National Forest 1371 Comment
  HSC21824  Viola ocellata Jack Rockwell 1962-5-12 70 Humboldt N of Bridgeville in hillside canyon 213 Comment
  JEPS50445  Viola ocellata Lincoln Constance 1934-5-23 600 Humboldt se slope of mountain above Lookout Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC1198451  Viola ocellata Joseph P. Tracy 1919-5-31 5163 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  RSA77739  Viola purpurea subsp. purpurea Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie. 762 Comment
  HSC100698  Viola sarmentosa Carl C. Marshall Mar 1886 145 Humboldt Throughout Humboldt County. Comment
  HSC42197  Viola sempervirens Ed Cope 1977-4-23 23 Humboldt 2.5 mi. S of Shelter Cove Rd. South Fork of Bear Creek at Wailaki Campground 561 Comment
  UC1198424  Viola sempervirens Joseph P. Tracy 1911-5-7 3179 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC12233  Viola sempervirens Gary J. Stebbins 1970-2-2 3 Humboldt In Big Lagoon Park 2.7 mi. W of U.S. 101 Comment
  CAS-BOT-BC203046  Vitis californica Doris K. Kildale 1926-5-2 1864 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  SEINET200826 Image available Vitis californica Joseph P. Tracy 1912-1 3799 Humboldt Along South Fork of Eel River, 5 mi above its mouth. 30 Comment
  HSC104101  Vulpia bromoides Kyle Brown 2015-4-25 50 Humboldt Arcata, trail along the Mad River 8 Comment
  UC1103714  Vulpia bromoides Joseph P. Tracy 1936-6-17 14960 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  UC1145201  Vulpia bromoides Joseph P. Tracy 1948-6-10 18065 Humboldt Trinidad 3 Comment
  SEINET11682992  Vulpia bromoides K. S. Erdman 1970-1 4818 Humboldt summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glenn, Redwood National Park Comment
  CAS-BOT-BC184235  Vulpia microstachys var. pauciflora S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3431 Humboldt Northwest slopes of Buck Mountain 822 Comment
  SEINET202037 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 14825 Humboldt French Camp Ridge 1067 Comment
  UC1145191  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-7-5 15039 Humboldt Grouse Mountain 1524 Comment
  UC1103718  Vulpia myuros var. hirsuta Joseph P. Tracy 1914-5-14 4432 1/2 Humboldt Fort Seward 106 Comment
  UC161564  Whipplea modesta Joseph P. Tracy 1911-7-7 3429 Humboldt Brannan Mt Northern Coast Ranges (viz: ridge n of Willow Creek, between Willow and Campbell Creeks, near the summit) 1219 Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  HSC98513  Wyethia longicaulis Cara Witte 2007-5-21 67 Humboldt White Oak Opening. 1257 Comment
  RSA46831  Xanthium strumarium Doris K. Kildale 1926-8-8 2467 Humboldt River [Rav?] - Bull Creek. Comment
  UC154244  Yabea microcarpa Joseph P. Tracy 1908-6 2743 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC1198217  Zigadenus fremontii Joseph P. Tracy 1917-6-17 4818 Humboldt bluff back Bucksport (Eureka); Northern Coast Region, Eureka 0 Comment
  HSC73775  Zigadenus micranthus M. A. Baker 1980-6-7 1769 Humboldt Near Brush Mtn. 1128 Comment



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