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

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78060  Abies grandis Doris K. Kildale 1926-11-27 2841 Humboldt Alton Hill 45 Comment
  POM160841  Abies grandis Joseph P. Tracy 1919-4-6 5125 Humboldt Around Humboldt Bay, Humboldt Hill. 152 Comment
  HSC59741  Abronia latifolia Clark L. Miller 1979-5-9 6117 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  HSC93532  Abronia latifolia Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  HSC90244  Abronia latifolia Jean Hanson 1980-5-24 56 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  SEINET5011048  Abronia latifolia Unknown 2002-8-19 83 Humboldt Sand beach N of rocky promontory and coast guard station. Comment
  UC1602146  Abronia latifolia Joseph P. Tracy 1936-6-6 14861 Humboldt Sandy shore near railroad station Eureka 3 Comment
  UC524123  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt 8 mi n Arcata (Sand dunes near Clam Beach) Comment
  HSC97642  Acer glabrum var. torreyi Cara Witte 2007-6-12 245 Humboldt Intersection of 4N70 and 4N32. Intersection to Grouse Mountain Lookout. 1628 Comment
  HSC99409  Acer glabrum var. torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 58 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC41320  Acer macrophyllum Brad Klipfel 1974-9-2 527 Humboldt Horse Mtn. Comment
  SEINET9350229 Image available Acer macrophyllum Frederick Utech, Knight, Walter; Knight Irja 1984-4-20 84 -175 Humboldt Humboldt County; Ca. 0.4 mi S towards Redcrest on Avenue of Giants from junction with US hwy 101. Trees to 20 ft.; along edge of Redwood Forest Association. Elev: 50 ft Herbarium, Carnegie Museum (CM), Pittsburgh, PA. 15 Comment
  CAS-BOT-BC28588  Achillea millefolium David D. Keck 1938-8-5 4765 Humboldt Clam Beach Comment
  HSC73474  Achillea millefolium Gail Newton 1980-7-11 1312 Humboldt Near Red Mtn. 1341 Comment
  SBBG70036  Achlys triphylla R. Hartwell 1938-8-3 Humboldt Bull Crk Flat Redwood Grove Comment
  UC1103143  Achnatherum lemmonii Joseph P. Tracy 1912-7-31 3942 Humboldt Buck Mountain, near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UC552726  Achnatherum lemmonii Joseph P. Tracy 1935-6-23 13964 Humboldt French Camp Ridge 1066 Comment
  SEINET201041  Achnatherum occidentale subsp. californicum J. P. Tracy, HE Parks 1934-6-27 11078 Humboldt Grouse Mtn N Coast Range 1433 Comment
  HSC45633  Acmispon micranthus Diane L. Reed 1978-4-22 13 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC36791  Acmispon nevadensis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2050 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  HSC71716  Acmispon nevadensis var. nevadensis M. A. Baker 1980-6-26 2439 Humboldt Near Sims Creek 610 Comment
  UCD104321  Acmispon parviflorus P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  UC1212576  Aconitum columbianum Francia Chisake and Helen Sharsmith 1959-8-22 4752 Humboldt bog at Happy Camp (just over line from Trinity Co.); Inner N. Coast Ranges, Happy Camp 914 Comment
  UC502920  Aconitum columbianum Joseph P. Tracy 1932-7-20 10729 Humboldt meadow at Corral Prairie; Klamath Mts., Trinity Summit 1524 Comment
  JEPS79802  Actaea rubra Joseph P. Tracy 1932-7-17 10690 Humboldt Devil's Hole Klamath Mts., Trinity Summit (head) 1828 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  HSC39158  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 - 1250 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC952  Adiantum aleuticum C. B. Wolf 1927-8-28 1170 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  SEINET11719536  Adiantum aleuticum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -309 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC65624  Adiantum jordanii Joseph P. Tracy 1895-9-1 6868 Humboldt near Pepperwood 30 Comment
  HSC35781  Agastache urticifolia Thomas W. Nelson, B. Reinhardt 1975-7-30 2096 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC98763  Agastache urticifolia Cara Witte 2007-6-27 363 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  UC1239508  Agoseris apargioides var. maritima Joseph P. Tracy 1918-7-28 5090 Humboldt Ocean Beach Northern Coast Region Comment
  RSA12441  Agoseris grandiflora C. B. Wolf 1934-7-1 5852 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  UCD128614  Agoseris heterophylla James P. Smith 1973-5-5 6479 Humboldt Along Cook and Green Pass Road. Comment
  UC582739  Agoseris heterophylla var. heterophylla H. E. Parks and Joseph P. Tracy 1934-6-27 13261 Humboldt in open places Grouse Mt. 1432 Comment
  HSC32336  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5646 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  POM319539  Agrostis Patricia Wilder 1968-8-21 4367 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  HSC8829  Agrostis capillaris D. J. Wilder 1965-5-9 32 Humboldt Arcata, 151 G st. Comment
  CAS-BOT-BC127281  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC127283  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt Along Mad River, near Blue Lake. 15 Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  SEINET4558396  Agrostis exarata J. P. Tracy 1902-1 1757 Humboldt Immediate vicinity of Eureka 152 Comment
  UC526892  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Wet Meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCR27986  Agrostis exarata A. C. Sanders 1981-8-6 2302 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  UC188818  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5885 Humboldt Francis Range Comment
  UCSC000094  Agrostis exarata Ken Kellman 1969-12-31 s.n. Humboldt Eureka Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  UCSC000097  Agrostis hallii H. S. Yates 1936-6-16 5674 Humboldt 1 mile N.E. of Samoa Samoa - Eureka 3 Comment
  HSC38381  Agrostis oregonensis Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1145063  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt near McKay Camp (in wet meadow); South Fork Mountain 1676 Comment
  UC1145064  Agrostis oregonensis Joseph P. Tracy 1937-7-29 15582 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC526878  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt in boggy meadow Northern Coast Ranges, Snow Camp 1371 Comment
  POM207266  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  UCD53466  Agrostis stolonifera P. B. Kennedy 1925-7-30 s.n. Humboldt Eureka. Comment
  UCD53503  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  SBBG21792  Ailanthus altissima D. Myrick 1964-7-26 978 Humboldt Hwy 299, ca. 15 mi E of Arcata 762 Comment
Read comments
Feb 4 2016
  HSC104460  Aira caryophyllea Jeff Barrett 2009-4-1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC65116  Aira caryophyllea J. P. Smith 1973-5-26 6877 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC70764  Aira caryophyllea R. York 1980-5-17 518 Humboldt Near Le Perron Peak 792 Comment
  SEINET185294  Aira caryophyllea Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15072 Humboldt Coolidge Tree Redwood Park Comment
  SEINET195007  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt Humboldt Camp 10 miles south of Dyerville Comment
  UC37074  Aira caryophyllea Harley P. Chandler May, 1901 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC726346  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  UC922022  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt e King's Peak; Wilder Ridge 762 Comment
  UCD55700  Aira caryophyllea Joseph P. Tracy 1950-6-15 18814 Humboldt near Huestis Rock, on Harris Road, 6 miles southeast of Fruitland. 914 Comment
  UCD55782  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA90195  Aira praecox Joseph P. Tracy 1925-3-24 11669 Humboldt Eureka, North Coast Range. Comment
  CAS-BOT-BC445358  Alisma plantago-aquatica Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans Comment
  UC1198195  Allium amplectens Joseph P. Tracy 1927-5-14 8004 Humboldt near South Fork; Trinity River Valley 182 Comment
  SEINET12045750  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  HSC98522  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 435 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  HSC32148  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC102617  Allium cratericola M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1604 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC176180  Allium falcifolium Joseph P. Tracy 1913-6-17 4164 Humboldt near summit; Northern Coast Ranges, Buck Mountain 1524 Comment
  CAS-BOT-BC135846  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road - Six Rivers National Forest 1371 Comment
  HSC12536  Allium membranaceum J. Allen DeCou 1899-6-22 263 Humboldt Trail to Trinity Summit Comment
  UC1562908  Allium peninsulare Barbara Ertter with Thomas J. Delendick 1987-5-16 6920 Humboldt ca. 15 air mi e Arcata (ridge below vista, w of Berry Summit on Hwy. 299); Vista Point 914 Comment
  UC2029549  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U. S. Highway 101 ca. 1.0 miles west of Orick Comment
  UC176168  Allium unifolium Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3607 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC78649  Allium validum D. K. Imper 1982-7-23 1480 Humboldt Near Onion Lake. 1371 Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  UC1193076  Alnus rhombifolia R. E. Nelson 1950-8-31 153 Humboldt streamside 3 mi nw Neafus Peak; Quad. 29D1 609 Comment
  UC54758  Alnus rhombifolia Mrs. Manning Humboldt Hupa Valley Comment
  HSC81811  Alnus rubra Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA46662  Alnus viridis subsp. sinuata Doris K. Kildale 1937-9-26 15377 Humboldt Snow Camp. Comment
  CDA28200  Alopecurus geniculatus A. A. Beetle, G. L. Stebbins, J. P. Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka. 0 Comment
  HSC46976  Ambrosia chamissonis J. P. Smith, Thomas W. Nelson 1977-6-30 9224 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC5662  Ambrosia chamissonis David Adams Oct 1960 Humboldt N bank of the Mad River near mouth 0 Comment
  HSC5664  Ambrosia chamissonis H. E. Parks Sep 1941 24215 Humboldt Little River Comment
  SEINET7014139  Ambrosia chamissonis R. Mastrogiuseppe, J. Mastrogiuseppe 1983-7-16 3491 Humboldt Dunes near Dry Lagoon. Comment
  SEINET200733  Amelanchier alnifolia H. P. Chandler 1282 Humboldt Hoopa Valley IR ; Hupa [Hoopa Valley] Indian Reservation 1097 Comment
  CAS-BOT-BC142883  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-9-5 2629 Humboldt Lasseck's Peaks between Corral Camp & Red Peak 1676 Comment
  CAS-BOT-BC142886  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-13 3135 Humboldt Redwood Creek at Berry's 289 Comment
  UC1198750  Amelanchier utahensis Joseph P. Tracy 1912-5-5 3579 Humboldt Eureka Northern Coast Region (at the Azalea Block) 0 Comment
  UC492197 Image available Amelanchier utahensis Joseph P. Tracy 1930-7-16 9093 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain Comment
  CAS-BOT-BC137868  Ammophila arenaria Mary O'Conor 1921-9-26 s.n. Humboldt Eureka. Comment
  HSC23719  Anagallis arvensis Tim Baroni 1971-7-5 104 Humboldt 8 mi. E of Petrolia Comment
  HSC17824  Anagallis arvensis D. E. Anderson 1961-8-25 1745 Humboldt 1.5 mi. S of Trinidad Comment
  HSC91928  Anaphalis margaritacea E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  HSC99574  Anaphalis margaritacea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 239 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
  HSC4629  Anaphalis margaritacea Paul Shields 1955-9-22 Humboldt 12 miles NW of Arcata Comment
  SEINET10761471  Anaphalis margaritacea J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13013 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  SEINET2031091 Image available Anaphalis margaritacea Joseph P. Tracy 5244 Humboldt Trinity Summit. Corral meadow 1520 Comment
  UC1196198  Anemone deltoidea Joseph P. Tracy 1947-7-5 17809 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1196193  Anemone oregana Joseph P. Tracy 1928-4-1 8408 Humboldt Big Lagoon; North Coast Region 60 Comment
  UC585999  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  BLMAR662  Angelica hendersonii Jennifer Wheeler 2012-7-12 662 Humboldt King range, Strawberry rock 253 Comment
  HSC71416  Angelica hendersonii J. M. DiTomaso 1980-8-1 1820 Humboldt Alton, S of Eureka, above NE junction of railroad and Hwy 36, E of Hwy 101 Comment
  HSC71436  Angelica hendersonii J. M. DiTomaso 1980-7-29 1798 Humboldt Elkshead, 2 mi N of Trinidad Comment
  BLMAR426  Angelica tomentosa Clara Sander 2004-9-1 426 Humboldt Titlow Hill, Horse Mt area on Titlow hill road 1554 Comment
  HSC56149  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-1 11992 Humboldt Near Mill Creek, close to the town of Hoopa 1707 Comment
  UC1197369  Angelica tomentosa Joseph P. Tracy 1924-8-9 6793 Humboldt Northern Coast Ranges, Carlotta Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UCD74273  Antennaria stenophylla G. Ledyard Stebbins 1985-6-19 N- 501 Humboldt Nevada: Humboldt County. Santa Rosa Mountains. Along road north of Hinkey Summit, 1.4 miles NE of Martin Creek Guard Station. 1950 Comment
Read comments
Apr 16 2015
  UC1199434  Antennaria suffrutescens Joseph P. Tracy 1938-6-13 15907 Humboldt Horse Mountain 1432 Comment
  UC582630  Anthemis cotula Joseph P. Tracy 1933-7-3 12633 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC10094  Anthoxanthum occidentale J. W. Johnson 1962-3-14 1120 Humboldt Arcata, Lanphere Farm, Samoa Peninsula, woods at the side of Miller Ln. Comment
  HSC79443  Anthoxanthum occidentale Kenneth Clark 1980-3-27 550 Humboldt 300 yards S of Dead Man's Gulch. 107 Comment
  SEINET7614635 Image available Anthoxanthum occidentale Richard R. Halse 1996-1 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  BLMAR50  Anthoxanthum odoratum Brad Barr June, 1982 50 Humboldt King range, ridgetop of Johnny Jack ridge Comment
  HSC8949  Anthoxanthum odoratum R. T. Forester 1963-4-30 52 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC89545  Anthoxanthum odoratum M. Roantree 1985-5-7 43 Humboldt SW side of Trinidad Head, along trail Comment
  UCSB297  Anthoxanthum odoratum Parker, H.; Parks, S. 1952-04 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC37193  Anthriscus caucalis Barbara Kelly 1976-5-8 250 Humboldt Westhaven Stables, 1 mi from 101 on Westhaven Dr. Comment
  HSC78963  Anthriscus caucalis L. P. Janeway, Ken Berg 1984-4-11 722 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  RSA33406  Antirrhinum vexillocalyculatum subsp. breweri Doris K. Kildale 1928-10-19 6953 Humboldt Miranda. Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC3220  Apocynum cannabinum F. Morrell 1949-5-22 31 Humboldt Salyer Comment
  UC492254  Arabidopsis thaliana Joseph P. Tracy 1932-5-17 10091 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  RSA1431  Aralia californica C. B. Wolf 1929-08 616 Humboldt 5 miles south of Weott Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  UCR32149  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  RSA0065452  Arbutus menziesii Nancy Ryan Zabriskie, Walter Zabriskie 1969-8-26 233 Humboldt South Fork of the Eel River below Piercy. Comment
  UC1196877  Arctostaphylos Joseph P. Tracy 1934-3-11 13156 Humboldt French Camp Ridge 1066 Comment
  SD62040  Arctostaphylos canescens Darley F. Howe 1965-8-12 4129 Humboldt 7.9 miles south of Honeydew. Comment
  UCD50535  Arctostaphylos canescens Joseph P. Tracy 1939-8-16 16406 Humboldt Horse Mountain; in open forest of Jeffrey Pine. 1432 Comment
  HSC99410  Arctostaphylos canescens subsp. canescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 59 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-BC23747  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. hwy. 299, Arcata to Willow Creek. 274 Comment
  CAS-BOT-BC23765  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Big Lagoon, Devil's Canyon 152 Comment
  CAS-BOT-BC23774  Arctostaphylos columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie 670 Comment
  CAS-BOT-BC23779  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of Arcata 609 Comment
  CAS-BOT-BC23786  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23798  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point Comment
  JEPS38618  Arctostaphylos columbiana W. L. Jepson 1902-6-29 1953 Humboldt Redwood Creek Comment
  RSA622683  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27815 Humboldt Highway 299, east of Lord Ellis Summit, east of Eureka. 700 Comment
  RSA622688  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27676 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UC585914  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  SEINET11989091  Arctostaphylos columbiana R. Gankin, Hildreth, W. R. 1967-1 1167 Humboldt 20 road mi E of Hwy 101 on Bald Hills Rd (from Orick) Comment
  JEPS38655  Arctostaphylos glandulosa subsp. glandulosa Lincoln Constance 1934-6-15 886 Humboldt summit of peak South Fork Eel River, Bull Creek region, Grasshopper Peak 975 Comment
  UC585934  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13330 Humboldt 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  CAS-BOT-BC39132  Arctostaphylos hispidula Doris K. Kildale; L. B. Kildale 1930-5-11 9529 Humboldt Bald Hills - Wiregrass Prairie 792 Comment
  RSA632799  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27794 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA633021  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27801 Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  UCD52079  Arctostaphylos manzanita Harold E. Parks; Joseph P. Tracy 1936-5-16 11304 Humboldt Near Gasquet; mountain slopes; north side of Middle Fork of Smith River; on old Gasquet Toll Road. 609 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  HSC48822  Arctostaphylos nevadensis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 33 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UCD52852  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1172 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  SEINET11989092  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1174 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  JEPS38935  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain 1432 Comment
  HSC100469  Arctostaphylos pungens Carl C. Marshall Apr 1886 383 Humboldt Hoopa Valley. Comment
  SEINET11987223  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3934 Humboldt Tilden Botanic Garden, Berkeley, orig. from S end of sand spit at Samoa Comment
  SEINET11987353  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4047 Humboldt Tilden Botanic Garden, Berkeley, orig. from Samoa Comment
  CDA6804  Arctotheca calendula J. M. DiTomaso 2000-8-14 s.n. Humboldt W of town of Ferndale, E of Centerville Beach, along Centerville Rd, at Pries Dairy, near Russ Creek Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC160986  Arenaria serpyllifolia subsp. serpyllifolia Harley P. Chandler June 1901 1433 Humboldt North Coast Ranges, Klamath River 304 Comment
  UCD56478  Aristida oligantha A. H. Murphy 1947-7-1 s.n. Humboldt south of Blocksburg, Tooby and Prior Ranch, K-weed Beetle field. Comment
  HSC32042  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt About 0.25 mi. S of Lufenholtz Co. Beach, off Scenic Dr. between Trinidad and Moonstone Beach. Comment
  HSC48771  Armeria maritima subsp. californica Brad Klipfel 1975-5-22 618 Humboldt Near city of Eureka airport S of Samoa Comment
  UC1073398  Armeria maritima subsp. californica George B. Rossbach 1955-6-10 397 Humboldt point off Eureka (at Fairhaven); Fairhaven Comment
  UC154174  Armeria maritima subsp. californica Harley P. Chandler May, 1901 1153 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  HSC4712  Arnica cernua D. E. Anderson 1965-6-1 3753 Humboldt Horse Mountain. 1220 Comment
  JEPS20979  Arnica cordifolia Joseph P. Tracy 1935-7-30 14372 Humboldt s of Red Cap Lake; Salmon Summit 2011 Comment
  CAS-BOT-BC82425  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  JEPS35862  Arnica discoidea Lincoln Constance 1934-6-19 910 Humboldt s of, near summit of Grasshopper Mtn Bull Creek Flat; South Fork of the Eel River, Grasshopper Mtn. 914 Comment
  POM160898  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 305 Comment
  RSA0047108  Arrhenatherum elatius Rebecca Wenk, P. Hopkinson, M. Hammond, S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles north of Mattole Road, about 3 air miles west of Highway 101. 244 Comment
  UC1057744  Arrhenatherum elatius W. L. Colwell 1957-7-6 42 Humboldt 6 mi nw of Bridgeville (Redwood House Ranch, Quadrangle 26C3); Redwood House Ranch 685 Comment
  UC1103322  Arrhenatherum elatius Ellingwood 1946-11-1 Humboldt Arcata Bottom 12 Comment
  UCD56014  Arrhenatherum elatius Freed W. Hoffman 1946-5-19 1726 Humboldt North Coast Ranges. Mattole River. Comment
  SEINET10473422  Artemisia Mary Susan Taylor 1990-8-22 Taylor 6078 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC75260  Artemisia douglasiana J. O. Sawyer, M. A. Ericksen 1980-8-18 4054 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  JEPS37015  Artemisia dracunculus W. L. Jepson 1921-9-11 9464 Humboldt 7 or 8 mi. s. Garberville (not far from Indian Creek (Devoy Flat) Redwood Flat, w. of S. Fork Eel); South Fork Eel River Comment
  UC249809  Artemisia dracunculus Joseph P. Tracy 1923-2-25 6148 Humboldt river bar at Carlotta; Van Duzen River 30 Comment
  BLMAR66  Artemisia pycnocephala Jennifer Anthony-Wheeler 1994-5-18 66 Humboldt Samoa dunes, growing outside wetland boundaries in Samoa Rec. area 6 Comment
  HSC46965  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just E of the drag strip. Comment
  RSA246933  Artemisia pycnocephala R. F. Thorne, Percy C. Everett 1965-8-5 35169 Humboldt Samoa Dunes. 3 Comment
  POM264517  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  POM51270  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  SEINET10725832  Artemisia suksdorfii Harold E. Parks Parks 24178 Humboldt Common on sand dunes near ocean. Comment
  CAS-BOT-BC400529  Asarum caudatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CHSC111  Asarum caudatum 1952-7-7 Humboldt Coastal. Comment
  HSC99362  Asarum caudatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 11 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-BC400539  Asarum caudatum C. C. Harris; S. K. Harris 1936-6-14 652 Humboldt On Yager Road from Carlotta 457 Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  SEINET8714984 Image available Asarum caudatum Unknown 1936-1 s.n. Humboldt Redwood forest on Yager Road from Carlotta, elevation about 1500 feet, Humboldt County, California. 457 Comment
  UC1197608  Asclepias eriocarpa Joseph P. Tracy 1932-9-3 10764 Humboldt Alton to Fortuna; Eel River 15 Comment
  RSA401103  Asclepias speciosa H. M. Pollard 1947-8-27 s.n. Humboldt Orleans Hotel grounds (Orleans region) Comment
  UC23011  Asclepias speciosa J. Burtt Davy 1899-6-24 5866 Humboldt Hoopa Valley, along the river North Coast Ranges Comment
  HSC100389  Aspidium rigidum var. argutum Carl C. Marshall Jun 1886 286 Humboldt Hoopa. Comment
  CAS-BOT-BC65943  Aspidotis densa L. B. Kildale 1930-6-1 9764 Humboldt Klamath River at Bluff Creek Comment
  HSC1053  Aspidotis densa Elrid H. Spinas 1948-5-22 41 Humboldt Horse Mtn. Comment
  CAS-BOT-BC65942  Aspidotis densa L. B. Kildale 1930-9-21 10218 Humboldt Bluff Creak trail to Fish Lake Comment
  RSA167201  Aster chilensis Joseph P. Tracy 1950-10-7 19383 Humboldt Berry's Mtn, E of Redwood Creek, on Trinity Hwy 549 Comment
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Aug 15 2009
  RSA417697  Aster occidentalis Thomas W. Nelson, Jane Nelson 1977-9-3 3726 Humboldt Along Creek draining, north from pond above Alder Spring. 1585 Comment
  UC502991 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten & Pierce Ranch) 762 Comment
  CAS-BOT-BC193133  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC1174495  Astragalus rattanii var. rattanii Volney Rattan June 1882 Humboldt Comment
  UC302115  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC33516  Astragalus rattanii var. rattanii Chesnut and Drew July 1888 Humboldt Mad River Comment
  JEPS109876  Astragalus umbraticus Dean W. Taylor 2006-8-2 19569 Humboldt Showers Mountain; on north flank of the mountain, south rim of the Mad River canyon 1051 Comment
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Apr 4 2017
  SEINET12160220  Astragalus umbraticus J. P. Tracy 1940-1 16706 Humboldt Bald Mt at 'Lake Prairie 1067 Comment
  HSC34744  Asyneuma prenanthoides Thomas W. Nelson 1974-7-19 1671 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76227  Asyneuma prenanthoides Overton, Butler 1979-7-24 9772 Humboldt Near Black Rock, close to the town of Willow Creek 1463 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
  SEINET10479114  Atriplex patula subsp. hastata Mary Susan Taylor 1982-10-24 Taylor 5177 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC1056069  Avena barbata J. I. Mallory 1955-1-16 111 Humboldt 2 mi e junction of Eel River and South Fork of Eel River 243 Comment
  UCD56261  Avena fatua A. H. Murphy 1951-4-2 8 Humboldt Alongside U.S. Hwy. 101. 1/4 mile south of Phillipville. Comment
  HSC75513  Avena sativa J. O. Sawyer, R. J. Cole 1977-7-3 3002 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  SEINET946131  Baccharis douglasii S. P. McLaughlin, Damien Ravetta 1991-1 6553 Humboldt Northwest end of Humboldt Bay, along Hwy 255 S of Arcata at Vance Road; Near jct. Hwy 101 and Elk River Road Comment
  CAS-BOT-BC98029  Baccharis pilularis Elmer I. Applegate 1922-9-19 3451 Humboldt Along the coast below Eureka Comment
  CAS-BOT-BC99404  Baccharis pilularis Doris K. Kildale 1925-12-25 1441 Humboldt mouth of Eel River Comment
  UCR37252  Baccharis pilularis R. A. Fawcett 1940-8-26 s.n. Humboldt Bishop Pine Lodge, Trinidad Comment
  UC492246  Barbarea orthoceras Joseph P. Tracy 1928-4-22 8413 Humboldt along streamlet, Trinity River Valley, at Willow Creek 152 Comment
  JEPS31853  Bellis perennis W. L. Jepson 1934-5-7 16709 Humboldt Bottom Bench, by Bull Creek, near Big Tree 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
  SEINET2153801  Bellis perennis K. T. Harper 2002-1 2002 -5 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  CAS-BOT-BC48159  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  UC1198384  Berberis aquifolium var. aquifolium Joseph P. Tracy 1948-9-5 18186 Humboldt on ridge 2 mi e Grove's Prairie (3 mi s of Grizzly Camp) 1524 Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  CAS-BOT-BC75797  Berberis pinnata Doris K. Kildale 1926-6-27 2231 Humboldt Little Van Duzen River. On road for Bridgeville to Weaverville. 640 Comment
  CDA24403  Berberis pinnata E. C. Whitney 1967-4-1 Humboldt Bear River, Ferndale. 0 Comment
  UCD129580  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. From Orleans down the river. 121 Comment
  HSC48749  Bistorta bistortoides Brad Klipfel 1973-6-10 75 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CHSC26466  Blechnum spicant J. Detzer 1977-4-8 3 Humboldt S end of Patricks Point State Park, ca. 0.2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  HSC37365  Blechnum spicant Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 497 Humboldt Along Lost Man Creek. 38 Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  POM247177  Boisduvalia glabella Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  RSA182023  Boisduvalia glabella Joseph P. Tracy 1916-6-19 4726 Humboldt Northern coast ranges: Dobbyn Creek 183 Comment
  UCD140029  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  HSC37915  Bolboschoenus robustus Peter Sorensen 1976-7-14 Humboldt Humboldt Bay, Woodley Island Comment
  HSC31637  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  HSC64840  Boykinia occidentalis J. P. Smith 1973-5-26 6861 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC96467  Boykinia occidentalis Gordon Leppig 1997-6-19 464 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  HSC25983  Brickellia californica Thomas W. Nelson 1970-9-3 232 Humboldt Mad River. Comment
  JEPS18619  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork Eel River, Richardson Grove Comment
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Feb 5 2011
  SEINET5781061 Image available Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 Humboldt Van Duzen River, below Blue Slide Comment
  CHSC59634  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward. Comment
  HSC79462  Briza maxima Kenneth Clark 1980-5-10 661 Humboldt Access road to Shelter Cove 30 Comment
  HSC9085  Briza maxima S. R. Johnson 1965-5-2 50 Humboldt Luffenholz Beach near parking area Comment
  HSC104034  Briza minor E. R. Fyer 2015-4-26 25 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  HSC9102  Briza minor J. E. Lankila 1962-5-6 9 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC24375  Brodiaea elegans subsp. elegans J. O. Sawyer 1970-6-24 2245 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1197748  Brodiaea elegans subsp. elegans Joseph P. Tracy 1942-6-15 17163 Humboldt grassy bench 1/2 mi ne Garberville 304 Comment
  BLMAR554  Brodiaea terrestris Jennifer Wheeler 2004-5-20 554 Humboldt Stornetta Ranch Comment
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Apr 21 2014
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  UC1197743  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1904-7-4 2114 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UCD57869  Bromus carinatus Joseph P. Tracy 1936-6-17 14946 Humboldt Buck Mountain. 792 Comment
  HSC99002  Bromus carinatus var. carinatus Cara Witte 2007-6-28 391 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  UC34028  Bromus carinatus var. carinatus Henry Melde 1902-2-8 Humboldt Eureka Comment
  CAS-BOT-BC149161  Bromus carinatus var. marginatus Joseph P. Tracy 1935-7-25 14233 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  HSC102641  Bromus carinatus var. marginatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1625 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC26365  Bromus carinatus var. marginatus T. O. Osborne 1970-4-5 84 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  RSA34310  Bromus diandrus L. Larsen 1935-5-6 s.n. Humboldt [no additional locality data provided] Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  UC1103359  Bromus diandrus Joseph P. Tracy 1912-7-26 3877 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC99460  Bromus orcuttianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 114 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  CAS-BOT-BC161604  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt Northern Coast Ranges of California. Stitz Creek. Along Eel River from South Fork to Scotia. 60 Comment
  RSA10035  Bromus vulgaris Joseph P. Tracy 1926-5-2 7427 Humboldt Trinity River Valley, near the south fork. Comment
  HSC95586  Cakile edentula Andrea Pickart 2002-7-8 160 Humboldt N Spit Dunes, Mad River Co. Park, W of parking area 0 Comment
  UC1198280  Cakile edentula Joseph P. Tracy 1946-1-13 17518 Humboldt Centerville Beach 3 Comment
  HSC12357  Cakile maritima Steve Dorei 1970-10-7 145 Humboldt McKinleyville Comment
  HSC79543  Cakile maritima Kenneth Clark 1981-5-24 1395 Humboldt 300 yards W of Deadman's Gulch 3 Comment
  SEINET10481270  Cakile maritima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2502 Humboldt Collected in the vicinity of a state park on the beach opposite of mckinleyville. Vast colony of yellow lupinus arboreus. Comment
  HSC74075  Calamagrostis foliosa Joyce Walker 1980-8-21 Humboldt Comment
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May 26 2013
  UC37779  Calamagrostis foliosa H. N. Bolander 1866-6 6470 Humboldt Mattole District; bluffs along seashore; Mattole District, Humboldt Co. Comment
  UCD56952  Calamagrostis foliosa A. H. Murphy 1951-5-18 38 Humboldt approx. 1.5 mi. south of Petrolia at bridge corssing, along Mattole River. Comment
  HSC58535  Calamagrostis koelerioides Overton, Butler 1979-7-23 9442 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  POM203700  Calamagrostis nutkaensis I. L. Wiggins 1932-7-25 5898 Humboldt Roadside near McKinleyville. Comment
  UCR199655  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35345 Humboldt Northwestern; Outer North Coastal region, along Hwy 101 about 3 miles N of Eureka 2 Comment
  UC153940  Callitriche marginata J. P. Tracy 1910-5-22 3137 Humboldt Immediate Vicinity of Eureka 0 Comment
  HSC12695  Callitriche stagnalis Jana Kattenhorn 1970-10-28 156 Humboldt Mad River at mouth of Lindsey Creek, North Bank Rd. off Hwy. 299, along Mad River Comment
  HSC70641  Calocedrus decurrens R. York 1980-5-18 592 Humboldt Near Black Mountain 792 Comment
  UC54783  Calocedrus decurrens P. E. Goddard 1901-7-10 53 Humboldt Hupa Comment
  UC667131  Calochortus coeruleus Joseph P. Tracy 1932-7-12 10483 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC15381  Calochortus tolmiei D. E. Anderson 1965-5-8 3653 Humboldt 3.5 mi. N of Willow Creek along rd. running along E of Trinity River Comment
  HSC99312  Calochortus tolmiei M. A. Baker 1980-6-7 1813 Humboldt Near Brush Mtn. 1128 Comment
  UC146213  Calochortus tolmiei Joseph P. Tracy 1908-6-7 2612 Humboldt Butler Valley Northern Coast Ranges 152 Comment
  UC659312  Calochortus tolmiei Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2614 Humboldt near Eureka; Larrabee Valley 762 Comment
  CAS-BOT-BC496520  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  CAS-BOT-BC496923  Calochortus vestae Volney Rattan 1882-6-1 s.n. Humboldt Near Bridgeville Comment
  UC503034  Caltha biflora Joseph P. Tracy July 16-19, 1930 8971 Humboldt Northern Coast Ranges. At McKay Camp, South Fork Mountain. 1676 Comment
  HSC102008  Caltha leptosepala M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 909 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  CAS-BOT-BC273317  Calycadenia fremontii Henry M. Pollard 1945-8-21 s.n. Humboldt Orleans to Somes Bar Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  HSC48948  Calypso bulbosa M. A. Baker 1979-5-17 732 Humboldt On FS 1 along Wilson Creek, just E of FS 15N01 Comment
  HSC65202  Calypso bulbosa T. Jimerson, J. Pageau 1979-5-1 446 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  UCSB29353  Calypso bulbosa var. occidentalis Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  UCD138888  Calypso bulbosa var. occidentalis Julie Lortz 1966-5-14 66 -51 Humboldt 26 mile east of Willow Creek. 1219 Comment
  UC1198376  Calyptridium monospermum Joseph P. Tracy 1933-7-11 12704 Humboldt Grouse Mountain 1524 Comment
  HSC70959  Calyptridium monospermum Thomas W. Nelson 1977-6-15 3434 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC74028  Calystegia occidentalis subsp. occidentalis Gail Newton 1980-7-11 1315 Humboldt Near Red Mtn. 1341 Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC1197883  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1926-5-9 7454 Humboldt near Bridgeville; near Bridgeville 457 Comment
  HSC103975  Calystegia soldanella C. Reynolds 2015-4-12 30 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  HSC6361  Calystegia soldanella Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC6363  Calystegia soldanella J. W. Johnson 1962-6-4 1413 Humboldt Arcata, W.M. Lanphere Farm, Samoa peninsula Comment
  RSA394824  Calystegia soldanella B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  SEINET3991741  Camassia leichtlinii Unknown 1947-6-26 Humboldt South Fork Mtn. Comment
  RSA0116953  Camassia quamash subsp. linearis Frank W. Peirson 1923-7-11 3681 Humboldt 7 miles N of Arcata. Comment
  UC1173652  Camassia quamash subsp. quamash Joseph P. Tracy 1937-8-12 15637 Humboldt Snow Camp 1402 Comment
  HSC16442  Camissonia cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  NY679571  Camissonia cheiranthifolia F. W. Hunnewell 1925-7-21 9739 Humboldt Clam Beach N of Eureka. Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  SEINET10463026  Campanula prenanthoides Ira L. Wiggins 1930-7-22 Wiggins 4690 Humboldt ALONG BANK OF REDWOOD CR BTWN BLUE LAKE & WILLOW CR Comment
  SEINET10873282  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Comment
  SEINET10463516  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt NR TITLOW HILL, WILLOW CR. QUAD., NR WILLOW CR. EVERGREEN CONIFER FOREST, SEEPAGE 1280 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  SEINET10840360  Campanula scouleri Marshall 1886-1 MARSHALL s.n. Humboldt Comment
  UC162969  Cardamine breweri J. P. Tracy 1905-4-23 2169 Humboldt immediate vicinity Eureka; vicinity Eureka 0 Comment
  UC668053  Cardamine californica var. californica Joseph P. Tracy 1938-4-5 15704 Humboldt Willow Creek Canyon Willow Creek Canyon (along Trinity Highway) 487 Comment
  CHSC77460  Cardamine californica var. sinuata Vernon H. Oswald 2000-4-3 9909 Humboldt Trail from County Parking Lot to headlands at Elk Head northwest of Trinidad. 24 Comment
  CAS-BOT-BC37894  Cardamine oligosperma Duart V. Brown 1947-3-27 16 Humboldt Near Tectah Creek, Klamath River. Comment
  UC161490  Cardamine pensylvanica Joseph P. Tracy 1905-4-16 2164 Humboldt region about Humboldt Bay (near Bucksport); Northern Coast Region, Humboldt Bay region, nr Bucksport 0 Comment
  UC1409184  Cardionema ramosissimum Robert F. Thorne and P. Everett 1965-8-5 35155 Humboldt Samoa Dunes 3 Comment
  HSC4144  Cardionema ramosissimum P. W. Shields Apr 1955 Humboldt 5 mi. NW of Arcata Comment
  CAS-BOT-BC18519  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  RSA32725  Carex aquatilis var. dives A. A. Heller 1930-8-4 s.n. Humboldt Little River. Comment
  UC562287  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  UC249738  Carex aquatilis var. dives Joseph P. Tracy 1923-6-24 8352 Humboldt Bald Mountain, meadow near High Prairie Northern Coast Ranges 1066 Comment
  JEPS25970  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow's Prairie. Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  UC1103082  Carex athrostachya Joseph P. Tracy 1933-8-30 13019 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  BLMAR502  Carex bolanderi Jennifer Wheeler 2009-5-9 502 Humboldt Headwaters Forest Reserve, HRC U08 Road; spur close to Elk River Comment
  CAS-BOT-BC19439  Carex bolanderi Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn [Whitethorn] and Shelter Cove. Comment
  HSC48136  Carex bolanderi D. H. Norris 1971-7-17 19599 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CHSC23306  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-9 35293 Humboldt Big Lagoon. 3 Comment
  SEINET10646885  Carex buxbaumii Robert F. Thorne 1965-9-8 Thorne 35293 Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC34276  Carex concinnoides Joseph Prince Tracy 1927-6-19 8190 Humboldt Northern Coast Range. Patrick's Point, in fern covered prairies on coast terraces. 60 Comment
  JEPS63744  Carex concinnoides Joseph P. Tracy 1926-5-30 7519 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  HSC103329  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7116 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  UC562425  Carex deweyana subsp. leptopoda Joseph P. Tracy 1936-6-9 14902 Humboldt 4 mi SE of Petrolia; Mattole Valley 60 Comment
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  UC1103079  Carex feta Joseph P. Tracy 1936-6-3 14846 Humboldt at Willow Creek Trinity River Valley 152 Comment
  UC562647  Carex feta Joseph P. Tracy 1928-6-17 8451 Humboldt at Willow Creek Trinity River Valley 152 Comment
  UC585645  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  SEINET7827267 Image available Carex fracta J. P. Tracy 1950-7-2 18963 Humboldt "Fern Spring;" Happy Camp Mountain (Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  UC1103576  Carex geyeri Joseph P. Tracy 1938-6-13 15901 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC20877  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  UCSC000105  Carex globosa H. L. Person 1932-5-11 s.n. Humboldt Near Arcata Arcata - Eureka Comment
  CAS-BOT-BC146619  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-22 4750 Humboldt 8 1/2 miles from Blocksburg on road to Bridgeville Comment
  SEINET7561251 Image available Carex harfordii Andrew L. Hipp 1999-5-31 438 Humboldt Phillipsville, Edge of 101 (Redwood Hwy), big E-turn just S of the Miranda exit. 152 Comment
  UC303143  Carex harfordii H. E. Parks and Joseph P. Tracy 1925-6-13 7095 Humboldt Eureka Northern Coast Ranges, Eureka 30 Comment
Read comments
Sep 15 2010
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  HSC76381  Carex hendersonii L. P. Janeway 1982-6-17 9 Humboldt Ca 300 m W of main Arcata Community Forest Road along the road to the HSU water tank. 137 Comment
  JEPS79845  Carex hendersonii Joseph P. Tracy 1911-6-4 3230 Humboldt Northern Coast Region, along Little River, 5 mi from the Coast Little River; Northern Coast Region, Little River 121 Comment
  RSA15489  Carex hendersonii Joseph P. Tracy 1933-5-28 12415 Humboldt Carlotta. 61 Comment
  CAS-BOT-BC21020  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at south fork of the Eel River. Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  CHSC90268  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8542 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CHSC90271  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8544 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CHSC90280  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8601 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC31260  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CAS-BOT-BC31582  Carex luzulina var. luzulina Doris K. Kildale 1931-5-10 10692 Humboldt Snow Camp. Comment
  UC1152083  Carex luzulina var. luzulina Joseph P. Tracy 1951-6-14 19410 Humboldt Snow Camp Comment
  CAS-BOT-BC31583  Carex luzulina var. luzulina Joseph Prince Tracy 1942-6-28 17269 Humboldt In bog at Murphy Meadows, Bald Mountain. 975 Comment
  UC562321  Carex lyngbyei Joseph P. Tracy 1935-6-8 13945 Humboldt around Humboldt Bay; Northern Coast Region 6 Comment
  CAS-BOT-BC146625  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt Grouse Mountain 1524 Comment
  HSC70470  Carex microptera Gail Newton 1980-7-20 1639 Humboldt Near Bell Swamps 1426 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  HSC98955  Carex multicaulis Cara Witte 2008-7-3 826 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  HSC98991  Carex multicaulis Cara Witte 2008-6-13 718 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  SEINET3905214  Carex nudata Thomas Nelson 1977-5-30 3407 Humboldt In Mad River at Anderson's Ford north of Dinsmore on the McKeown Ranch.; 0 610 Comment
  HSC38424  Carex obnupta Lon Hall 1975-6-20 407 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  HSC91620  Carex obnupta E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, beach N of Wedding Rock Comment
  SEINET3905665  Carex oederi H. E. Parks 1935-1 5214 Humboldt In center of Dry Lagoon, south of Orick.; 0 Comment
  SEINET10883539  Carex ormantha Joseph P. Tracy 1932-7-14 Tracy 10567 Humboldt Corral Prairie in wet meadow. 1585 Comment
  UC562550  Carex ovalis Joseph P. Tracy 1934-7-18 13413 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  CAS-BOT-BC119271  Carex ovalis Joseph Prince Tracy 1937-8-7 15617 Humboldt Bald Mt. Murphy Ridge. 914 Comment
  UC1115820  Carex pachystachya Joseph P. Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  UC562659  Carex pachystachya Joseph P. Tracy 1935-7-27 14287 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  BLMAR70  Carex pansa Jennifer Anthony-Wheeler 1994-5-18 70 Humboldt Samoa/manilla dunes, growing intermittently in wet area in the samoa dunes rec. area 6 Comment
  HSC78036  Carex rostrata Gail Newton 1980-8-10 2050 Humboldt Near Blake Mtn. 1707 Comment
  POM160299  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain. 1220 Comment
  JEPS80022  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1219 Comment
  UC658  Carex serratodens H. N. Bolander 1866-1 6476 Humboldt Red Mountains Comment
  RSA794382  Carex subbracteata P. F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles southeast of Route 299 at Berry Summit, 1 air km southwest of Horse Mountain. Outer North Coast Ranges. 1190 Comment
  SEINET4290249 Image available Carex subbracteata Unknown 2009-1 24494 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. Comment
  CAS-BOT-BC116905  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4842 Humboldt 8 miles from Kneeland on road to Yager. Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  UC249554  Carex unilateralis Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley 152 Comment
  UC562627  Carex unilateralis Joseph P. Tracy 1933-6-9 12539 Humboldt Fortuna 18 Comment
  BLMAR271  Castilleja affinis subsp. affinis Jennifer Anthony-Wheeler 1995-6-30 271 Humboldt Lacks Creek 1219 Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  JEPS25792  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-23 1210 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  UC1196856  Castilleja affinis subsp. litoralis Joseph P. Tracy 1927-8-14 8332 Humboldt n end Big Lagoon (hills) 152 Comment
  UC582582  Castilleja affinis subsp. litoralis H. E. Parks and Joseph P. Tracy 1923-5-19 6208 Humboldt vicinity Trinidad 60 Comment
  HSC38444  Castilleja ambigua subsp. humboldtiensis J. P. Smith 1976-7-3 8934 Humboldt Just N of Samoa Bridge 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
  SD62425  Castilleja applegatei subsp. pinetorum Lincoln Constance, Elwood Molseed, Robert Ornduff 1961-7-19 3701 Humboldt Open ridge easr of Hinkey Summit. Santa Rosa Range, Humboldt National Forest Comment
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Mar 3 2014
  UC582494  Castilleja arachnoidea Joseph P. Tracy 1935-7-24 14171 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  HSC102069  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 971 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC244880  Castilleja miniata Joseph P. Tracy 1939-8-20 16429 Humboldt near Blue Bale, along Mad River 15 Comment
  UC1374940  Castilleja miniata Noel H. Holmgren and Liew Fah Seong 1969-6-24 3612 Humboldt n of Fortuna (along road) Comment
  JEPS88837  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7876 Humboldt Horse Mt. Comment
  UC902244  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18342 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
  UC1502114  Ceanothus R. Sutherland 1976-5-11 7 .11.76 Humboldt just outside Sec 32 Pt. Delgado Quad.; Pt. Delgada Quad. 609 Comment
  HSC44429  Ceanothus arcuatus Brad Klipfel 1975-5-30 639 Humboldt Horse Mtn. Comment
  RSA758814  Ceanothus arcuatus D. H. Wilken, E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km southwest of summit of Horse Mountain, west of head of Horse Mountain Creek. 1325 Comment
  UCR141621  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  CAS-BOT-BC83833  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 1154 b Humboldt Willow Creek watershed, NW slope of Brush Mountain 410 Comment
  UC1193330  Ceanothus cuneatus var. cuneatus K. Cuff Sep 1950 125 Humboldt 6 mi nw Garberville (rocky ridgecrest of Bear Butte); Quad. 29C1 762 Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  BLMAR249  Ceanothus integerrimus Jennifer Anthony-Wheeler 1997-7-24 249 Humboldt Lacks Creek, growing in disturbed sites among forest 1219 Comment
  CAS-BOT-BC63677  Ceanothus integerrimus L. B. Kildale 1926-4-25 1813 Humboldt Hoopa Mt. 304 Comment
  HSC40027  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2873 Humboldt At Goat Hill Lookout 1666 Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1198030  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1933-5-21 12207 Humboldt Bridgeville near mouth Little Larrabee Creek, Bridgeville 198 Comment
  UC275288  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-4 6669 Humboldt near Bridgeville; Northern Coast Ranges, Little Larabee Creek 243 Comment
  SBBG4431  Ceanothus parryi M. Van Rensselaer 1941-4-29 1644 Humboldt Redwood Hwy near Garberville Comment
  SD53199  Ceanothus parryi D. F. Howe 1962-5-21 Humboldt 2.3 miles north of Garberville on #101 152 Comment
  UCSB11762  Ceanothus parryi Neuns, R. 1940-7-13 Humboldt 3 miles south of Alder Point 548 Comment
  HSC43228  Ceanothus pumilus R. Sutherland 1976-4-25 3 .25476 Humboldt 622 Comment
  RSA46726  Ceanothus pumilus Doris K. Kildale 1937-8-15 15334 Humboldt High Divide Comment
  CAS-BOT-BC52220  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1553 Humboldt Big Lagoon Comment
  HSC100906  Ceanothus thyrsiflorus Carl C. Marshall Apr 1885 16 Humboldt Vicinity Humboldt Bay everywhere. Comment
  POM87956  Ceanothus thyrsiflorus L. R. Abrams, Rimo Bacigalupi 1922-6-25 8295 Humboldt Humboldt CountyBluffs N of Big Lagoon Comment
  UCD112839  Ceanothus velutinus J. Street 1950-6-24 s.n. Humboldt Close to coast north of Usal. Comment
  SEINET13946128 Image available Ceanothus velutinus S. K. Harris 1942-1 1257 Humboldt Fickle Hill Road, 5 mi N and 2 mi E of Boynton Prairie; ca 630 m alt. 630 Comment
  CDA7085  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  RSA391522  Centaurium muehlenbergii M. V. Hood 1940-08 s.n. Humboldt Eel River - near Redway. 457 Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 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
  HSC40125  Cephalanthera austiniae Thomas W. Nelson, James Nelson 1976-7-28 3070 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  HSC98795  Cephalanthera austiniae Cara Witte 2008-7-3 828 Humboldt Intersection of Friday Ridge Rd (6N08) and 5N39 1512 Comment
  CAS-BOT-BC384901  Cerastium arvense Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC68055  Cerastium arvense J. P. Smith, J. O. Sawyer 1976-5-2 8634 Humboldt Redwood Creek-Hoopa Rd., 0.6 mi. W of its junction with Loop Rd. in Hoopa Reservation 122 Comment
  HSC79360  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Above Dead Man's gulch 175 Comment
  CAS-BOT-BC400144  Ceratophyllum demersum Henry M. Pollard 1946-8-16 s.n. Humboldt Pond near Harley place, Orleans region Comment
  CAS-BOT-BC85652  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  CAS-BOT-BC85653  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  UC1199377  Chamaemelum nobile J. P. Tracy 1896-8-7 14 Humboldt immediate vicinity of Eureka (on streets in Eureka, J Street) 0 Comment
  UC170197  Chamaesyce serpyllifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5710 Humboldt Hoopa Valley Comment
  CAS-BOT-BC166043  Chamerion angustifolium subsp. circumvagum Carl B. Wolf 1927-8-22 767 Humboldt Big Lagoon Comment
  HSC55037  Chamerion angustifolium subsp. circumvagum Gilbert Muth 1979-7-31 11497 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  CAS-BOT-BC70164  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mtn. nr. Orleans 1524 Comment
  JEPS59742  Chenopodium botrys W. L. Jepson 1936-8-12 17885 Humboldt Philipsville South Fork Eel River Comment
  UC161392  Chenopodium botrys Chesnut and Drew 1888-7-1 Humboldt Grouse Creek Comment
  BLMAR526  Chimaphila menziesii Jennifer Wheeler 2009-6-23 526 Humboldt King range, On King Peak road Comment
  UC154039  Chimaphila umbellata Joseph P. Tracy 1908-6 2879 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  HSC100553  Chlorogalum pomeridianum Carl C. Marshall Jul 1886 260 Humboldt Throughout the Coast Range, Humboldt Bay. Comment
  RSA302606  Chrysanthemum leucanthemum J. R. Shevock 1972-7-26 2230 Humboldt Hwy. 299 305 Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  HSC36262  Cicuta douglasii John Rehling 1974-8-20 24 Humboldt Big Lagoon Bog Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  SD58271  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  CAS-BOT-BC184830  Cinna latifolia Joseph P. Tracy 1935-7-25 14244 Humboldt Trinity Summit. Lower end of Brett Hole. 1584 Comment
  HSC98713  Circaea alpina subsp. pacifica Cara Witte 2007-7-20 567 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC98857  Circaea alpina subsp. pacifica Cara Witte 2008-7-30 974 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  RSA125055  Circaea alpina subsp. pacifica Peter H. Raven, R. Snow 1958-7-20 13640 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  UC1223063  Cirsium arvense Joseph P. Tracy 1950-8-1 19245 Humboldt near summit e of North Fork of Mad River Comment
  UC34640  Cirsium arvense Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  CAS-BOT-BC284404  Cirsium arvense L. R. Abrams 1927-8-31 12059 Humboldt Arcata Comment
  CAS-BOT-BC284405  Cirsium arvense Doris K. Kildale 1925-7-26 1069 Humboldt Mad River at West End Crossing Comment
  JEPS23566  Cirsium brevistylum Peter H. Raven, R. Snow 1958-7-20 13648 Humboldt 0.7 mi s U.S. Highway 299 (along Titlow Hill Road); Titlow Hill Road Comment
  RSA0070609  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek, on the Willow Creek Highway. 610 Comment
  RSA671131  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt Nr. Berry Summit on Titlow Hill Road, 3.9 miles south of Hwy. 299 Comment
  HSC68157  Cirsium vulgare J. P. Smith 1971-10-6 4972 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC76337  Cirsium vulgare Michael Ericksen 1981-8-20 1076 Humboldt Near Van Duzen Public Campground 1000 Comment
  HSC75274  Cirsium vulgare J. O. Sawyer, D. A. Thornburgh 1980-9-9 4081 Humboldt Mill Creek Lake and surrounding meadows Comment
  CAS-BOT-BC228803  Cistanthe umbellata R. K. Gierisch; D. H. Esplin 1969-7-1 3528 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  HSC45282  Clarkia amoena Clifton Raymond Chesbrough 1971-7-26 100 Humboldt 2 mi. N of Trinidad Comment
  UC1196991  Clarkia amoena Joseph P. Tracy 1925-5-30 7029 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  CAS-BOT-BC160971  Clarkia amoena subsp. amoena L. R. Abrams 1918-6-16 7169 Humboldt Willow Creek Comment
  UC101803  Clarkia amoena subsp. amoena R. A. Plaskett Humboldt Mattole River Comment
  CAS-BOT-BC160947  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 A Humboldt Above terrace at Shelter Cove Comment
  UC204004  Clarkia amoena subsp. amoena Joseph P. Tracy 1918-7-3 4989 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range 762 Comment
  UC583076  Clarkia amoena subsp. amoena P. A. Munz 1936-8-10 14339 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  HSC48148  Clarkia amoena subsp. huntiana Thomas W. Nelson, Jane P. Nelson 1978-7-3 4410 Humboldt Along Hwy. 36, 100 m E of Dinsmore 610 Comment
  RSA24287  Clarkia amoena subsp. huntiana Carl B. Wolf 1940-11-10 9783 Humboldt 1 mile inland from Devils Gate (South of Cape Mendocino) on road to Petrolia 152 Comment
  CAS-BOT-BC164181  Clarkia concinna Doris K. Kildale 1929-5-26 9153 Humboldt Klamath River at Orleans 152 Comment
  HSC64516  Clarkia concinna subsp. concinna J. P. Smith, Steve Selva 1970-6-14 3840 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UC184710  Clarkia davyi Joseph P. Tracy 1912-7-21 3771 Humboldt Alton Northern Coast Region 30 Comment
  UC1071991  Clarkia gracilis H. and M. Lewis 1947-6-13 423 Humboldt Highway 36, Bridge 4-119 South Fork of Van Duzen River Comment
  LA47440  Clarkia gracilis subsp. gracilis Joseph P. Tracy; 1912-7-31 3907 Humboldt Burr Valley, on NW slope of Buck Mountain 1066 Comment
  UC125958  Clarkia gracilis subsp. sonomensis Mrs. M. H. Manning 1902-1 Humboldt near Hupa Comment
  UC169917  Clarkia purpurea subsp. quadrivulnera Harley P. Chandler June 1901 1471 A Humboldt Klamath River North Coast Ranges 304 Comment
  UC183683  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-6-20 4244 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC164824  Clarkia rhomboidea Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  CAS-BOT-BC439097  Claytonia cordifolia Joseph P. Tracy 1932-7-15 10583 Humboldt Trinity Summit. Ridges East of Corral Prairie 1828 Comment
  UC494167  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  UC203567  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1918-4-7 4862 Humboldt mouth of Strawberry Creek; Northern Coast Ranges, Dows Prairie 6 Comment
  RSA249332  Claytonia rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5610 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC161027  Claytonia rubra subsp. depressa Joseph P. Tracy 1910-4-24 3129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  JEPS25688  Claytonia saxosa P. C. Hutchison 1961-5-22 2016 Humboldt 4.3 mi s (on U.S. Hwy 299) Berry Summit (Monster Point parking area, Horse Mountain); Horse Mountain, Monster Point Comment
  CAS-BOT-BC443899  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC45613  Claytonia sibirica Diane L. Reed 1978-5-7 56 Humboldt Fourmile Creek on Friday Ridge Rd., 4 mi. from Hwy. 299 Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  JEPS60566  Clematis ligusticifolia Lincoln Constance 1934-6-18 898 Humboldt near S. Fork R.R. Station & P.O (border of N. Dyerville Flat); Bull Creek Region, W. Fork Eel R. Comment
  JEPS61603  Clintonia andrewsiana W. L. Jepson 1932-8-9 16540 Humboldt Bull Creek 106 Comment
  UCD139617  Clintonia andrewsiana K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  CAS-BOT-BC499335  Clintonia andrewsiana H. C. Cantelow 1936-5-17 1341 Humboldt 3 mi. E. of Oriak Comment
  HSC74151  Clintonia uniflora Gail Newton 1980-7-20 1613 Humboldt Near Bell Swamps 1426 Comment
  JEPS26342  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  POM210220  Collinsia grandiflora H. E. Parks, Joseph P. Tracy 1930-5-25 741 Humboldt Laribee Valley. 762 Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  HSC99026  Collinsia linearis Cara Witte 2008-7-1 788 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UC162568  Collinsia linearis Joseph P. Tracy 1911-7-6 3336 Humboldt along road between Three Creeks and Mouth of Willow Creek (Northern Coast Ranges); Northern Coast Ranges 762 Comment
  HSC70372  Collinsia rattanii Gail Newton 1980-6-7 129 Humboldt Near Brush Mtn. 1128 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  JEPS6349  Collinsia sparsiflora var. collina Joseph P. Tracy 1916-5-2 4685 Humboldt At Eureka, from lower slopes of Buck Mountain. 762 Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  UC1196824  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1904-4-3 2007 Humboldt immed. vicinity Eureka 0 Comment
  UC198584  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt Northern Coast Ranges, Eureka, lower slopes of Buck Mountain Buck Mountain; Northern Coast Ranges, Eureka, Buck Mountain 762 Comment
  JEPS7053  Collinsia torreyi var. wrightii Joseph P. Tracy 1932-7-12 10467 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC908726  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  UC52553  Collomia heterophylla Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  HSC16920  Collomia heterophylla D. E. Anderson 1963-5-18 2450 Humboldt Near junction of New and Trinity Rivers Comment
  SEINET7963087 Image available Collomia heterophylla S. K. Harris 1942-1 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E 600 Comment
  HSC102537  Collomia tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1523 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC74377  Collomia tracyi M. A. Baker 1980-6-28 2492 Humboldt Near Mad River Buttes 1445 Comment
  JEPS26238  Collomia tracyi Joseph P. Tracy 1930-7-16 9046 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1197860  Collomia tracyi Joseph P. Tracy 1926-6-20 7634 Humboldt Horse Mountain 1432 Comment
  UC978531  Collomia tracyi Joseph P. Tracy Jul 16 1930-Jul 19 1930 9046 Humboldt open glades along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1196452  Corallorhiza maculata Joseph P. Tracy 1935-7-25 14252 Humboldt Brett Hole Trinity Summit (lower end) 1584 Comment
  JEPS15870  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt sandy fields at Bucksport (at Eureka); Eureka Comment
  RSA0019463  Cornus Doris K. Kildale 1937-8-29 15081 Humboldt Dinsmore's. Comment
  HSC57031  Cornus nuttallii Overton, Butler 1979-7-24 9656 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC60034  Cornus nuttallii M. A. Baker 1978-5-6 467 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  HSC58001  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-7-31 11785 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC82313  Cornus sericea subsp. sericea Thomas W. Nelson, Linda M. Barker 1977-6-3 3385 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
Read comments
May 7 2013
  CAS-BOT-BC210542  Cornus sessilis Carl B. Wolf 1941-2-28 9971 Humboldt Junction of Willow Creek & its e. fork 457 Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  JEPS53366  Coronopus didymus W. L. Jepson 1932-7-28 16431 Humboldt Dyerville 88 Comment
  UC902052  Corylus californica Joseph P. Tracy 1949-8-7 18435 Humboldt Trinity Summit, near Box Camp 1463 Comment
  RSA46830  Corylus cornuta var. californica Doris K. Kildale 1926-8-31 2602 Humboldt Mattole Valley, at Geo. H. Mineis. Comment
Read comments
Jan 24 2013
  RSA730001  Cotoneaster pannosus Peter F. Zika 2007-7-20 263324 Humboldt NCo, North Coast: Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  HSC39804  Cotula coronopifolia Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  JEPS49998  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC249632  Crassula connata var. erectoides Joseph P. Tracy 1921-4-24 5445 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  CAS-BOT-BC290341  Crepis acuminata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC58161  Crepis acuminata G. L. Clifton, Griswold 1979-8-2 12224 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1409183  Crepis capillaris Robert F. Thorne and P. Everett 1965-8-8 35236 Humboldt Eureka; n edge, e of Hwy 101 4 Comment
  UC540835  Crepis capillaris David D. Keck and J. Clausen 1935-6-16 3396 Humboldt just s Trinidad Comment
  POM92411  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 miles south of Fortuna Comment
  UC538047  Crepis occidentalis E. B. Babcock 1932-6-25 404 Humboldt South Fork Mt.; exposed n slope, Humboldt-Trinity Counties 1828 Comment
  RSA113707  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek, near the mouth in woods along an old road 152 Comment
  UC176812  Crocidium multicaule Joseph P. Tracy 1913-5-4 4048 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC32316  Cryptantha affinis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5656 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC525589  Cryptantha flaccida Joseph P. Tracy 1930-6-15 8750 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC1239650  Cryptantha torreyana Joseph P. Tracy 1923-6-3 6259 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC55165  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 12155 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC54781  Cupressus lawsoniana Joseph Burtt Davy and Walter C. Blasdale 1899-5 5633 Humboldt Hoopa Mt. North Coast Ranges, Hoopa Mt. Comment
  CAS-BOT-BC224392  Cuscuta californica Joseph P. Tracy 1949-8-4 18407 Humboldt Trinity Summit. Mud Springs 1341 Comment
  UC906745  Cuscuta californica Joseph P. Tracy 1941-8-28 17047 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC562672  Cuscuta campestris Joseph P. Tracy 1933-8-25 12997 Humboldt near mouth of Eel River; Centerville Beach 6 Comment
  RSA249509  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-8 35280 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  SEINET3480723  Cuscuta salina C. C. Harris, S. K. Harris 1941-7-28 1894 Humboldt Humboldt Bay near Table Bluff, Humboldt Bay near Table Bluff, Parasitic on Salicornia ambigua Comment
  UC562484  Cuscuta salina var. major Joseph P. Tracy 1933-8-22 12990 Humboldt Mouth of Eel River 3 Comment
  UC582719  Cuscuta suksdorfii Joseph P. Tracy 1937-8-12 15639 Humboldt Snow Camp 1402 Comment
  UC54748  Cynoglossum grande J. P. Tracy 1901-4-26 1047 Humboldt vicinity Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  HSC69630  Cynosurus echinatus R. Kalal 1980-6-3 29 Humboldt Junction of Spring St. and Hill St., Arcata 43 Comment
  HSC9521  Cynosurus echinatus Paul Shields Jun 1955 Humboldt 6 mi. W of Myers Flat Comment
  UC1103240  Cynosurus echinatus Joseph P. Tracy 1948-6-13 18047 Humboldt Dobbyn Creek 152 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
  JEPS64088  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt mt. slopes w. of its mouth S. Fork Trinity R. 304 Comment
  POM160839  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC1196446  Cypripedium montanum Joseph P. Tracy 1924-4-27 6647 Humboldt brushy hillside at Berry's; Northern Coast Ranges, Redwood Creek 365 Comment
  HSC71613  Cytisus scoparius J. P. Smith 1973-5-26 6833 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89445  Cytisus scoparius P. A. Daly 1984-5-13 20 Humboldt Along trail at Trinidad Head 61 Comment
  HSC14665  Cytisus scoparius var. andreanus S. S. Stutz 1963-5-18 54 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC9532  Dactylis glomerata N. R. Waite 1965-5-19 39 Humboldt W edge of Humboldt State University campus. Comment
  RSA728072  Dactylis glomerata Gary D. Wallace 1979-7-24 1864 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  HSC98940  Danthonia californica Cara Witte 2007-6-21 330 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  BLMAR38  Danthonia californica Brad Barr 1982-6-21 38 Humboldt King range, hidden valley enclosure Comment
  RSA293102  Danthonia californica var. californica J. P. Smith 1977-7-3 9231 Humboldt Road to Fish lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 488 Comment
  HSC98849  Danthonia unispicata Cara Witte 2008-7-11 870 Humboldt Horse Mountain Botanical Area. 1/2 mi. south from intersection of National Forest 1, Forest Service Roads 6N38 and 6N36. 1413 Comment
  UCD61078  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  JEPS49588  Darmera peltata Harley P. Chandler May 1901 1233 Humboldt Redwood Belt; North Coast Ranges 91 Comment
  JEPS49584  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  UC183586  Darmera peltata Joseph P. Tracy 1913-6-11 4093 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1198471  Datisca glomerata Joseph P. Tracy 1912-8-3 3972 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UCSB15507  Daucus pusillus 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC249612  Daucus pusillus Joseph P. Tracy 1921-7-10 5845 Humboldt near ocean Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC1196317  Delphinium andersonii Joseph P. Tracy 1930-6-21 8778 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  CAS-BOT-BC33215  Delphinium decorum subsp. tracyi Harold Ernest Parks; Joseph Prince Tracy 1930-3-25 789 Humboldt Laribee Valley 914 Comment
  HSC90041  Delphinium decorum subsp. tracyi Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 60 Humboldt Titlow Rd. 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  HSC96258  Delphinium decorum subsp. tracyi Kaylea Eickhoff, Cara M. Witte 2005-6-15 12 Humboldt 14.1 mi. S of Hwy. 299 on NF1, 0.25 mi. NE of Grouse Mtn. 1400 Comment
  POM172673  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley, on NW slope of Buck Mtn Comment
  UC183075  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC46067  Delphinium depauperatum R. C. Wunner 1962-5-6 Humboldt Denny Forest Service Campground Comment
  UC161541  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1911-7-7 3376 Humboldt meadows on mountainside 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC67210  Delphinium nuttallianum Thomas W. Nelson, James Nelson 1980-6-10 5438 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC34917  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1975-5-24 1862 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC45269  Delphinium trolliifolium M. Alcasas 1978-6-3 122 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  UC1196341  Delphinium trolliifolium Joseph P. Tracy 1921-6-19 5831 Humboldt Berry Mt. Northern Coast Ranges 914 Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UCD63765  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-7-1 Humboldt On road between Scotia and Capetown. Comment
  HSC54605  Deschampsia elongata Overton, Butler 1979-7-24 9689 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA10093  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Goose Mountain; along streamlet 1524 Comment
Read comments
Jul 26 2012
  UC187266  Deschampsia elongata Joseph P. Tracy 1911-7-5 3316 Humboldt near its mouth (a tributary of Trinity R.) Willow Creek; Northern Coast Ranges, Willow Creek 243 Comment
  UCSC000015  Deschampsia elongata H. S. Yates 1936-6-16 5666 Humboldt 1 mile S.W. of Samoa- Eureka 6 Comment
  HSC98563  Dicentra pauciflora Cara Witte 2008-6-13 729 Humboldt Forest Service Road 4N32. 2 miles west of intersection with Forest Service Road 5N04. 1514 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
  UC1005674  Dichelostemma capitatum Frank W. Gould 1939-5-30 838 Humboldt about 25 mi due e Eureka (near top of Horse Mountain); Horse Mountain 1100 Comment
  HSC3000  Dichelostemma capitatum subsp. capitatum Paul Shields May 1955 Humboldt Horse Mountain Comment
  UC666883  Dichelostemma congestum Joseph P. Tracy 1927-5-8 7965 Humboldt Phillipsville South Fork of Eel River 121 Comment
  HSC48851  Dichelostemma ida-maia Brad Klipfel 1973-7-15 210 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET202731  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  UC1198184  Dichelostemma ida-maia Joseph P. Tracy 1930-6-21 8773 Humboldt Larrabee Valley 731 Comment
  UCR32171  Dichelostemma ida-maia David J. Keil 1983-7-2 17339 Humboldt 2.8 mi south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1098 Comment
  SEINET12053109  Dichelostemma ida-maia J. P. Tracy, Murphy, A. H. 1951-1 19568 Humboldt vicinity of Twin Lakes and Snow Camp Comment
  SEINET12053111  Dichelostemma ida-maia L. K. Henry 1971-1 s.n. Humboldt along Rt.36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  HSC38524  Dichelostemma multiflorum D. E. Anderson, J. P. Smith 1971-6-18 - 1072 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  POM273545  Digitalis purpurea Lyman D. Benson 1929-7-19 1879 Humboldt Mouth of Matole [Mattole] River. Comment
  UCD63953  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 121 Comment
  UC1103232  Digitaria sanguinalis Joseph P. Tracy 1930-10-12 9212 Humboldt Alton to Fortuna; Eel River 15 Comment
  UC1409176  Dipsacus fullonum Robert F. Thorne and P. Everett 1965-8-9 35282 Humboldt 2.5 mi n Arcata Comment
  UC602572  Dipsacus sativus Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  POM277212  Disporum hookeri var. hookeri Lyman Benson 1929-7-16 1842 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA520552  Disporum hookeri var. hookeri Michael A. Hanson 1990-5-22 83 Humboldt Between Weitchpec and Orleans on Bluff Creek Road, 4.6 miles (7.4) west of highway 96. Comment
  POM118601  Disporum smithii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCSC000139  Disporum smithii R. Stahelin 1933-5-17 s.n. Humboldt Arcata City Park - Eureka Comment
  CHSC56629  Distichlis spicata L. P. Janeway 1983-9-24 703 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  UC562745  Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt ridges e Corral Prairie (Trinity Summit); , ridges e of Corral Prairie 1828 Comment
  UC562750  Dodecatheon jeffreyi Joseph P. Tracy 1927-8-22 8340 Humboldt in cold wet meadow near High Prairie (Bald Mountain); Northern Coast Ranges, , nr High Prairie 1066 Comment
  RSA32864  Downingia yina A. A. Heller 1923-7-8 13771 Humboldt Near Fortuna Comment
  UC1245397  Draperia systyla Joseph P. Tracy 1935-7-31 866 Humboldt Devil's Back Bone near Gora's Gap 1432 Comment
  SEINET13728350  Drosera rotundifolia Unknown 1914-9-6 4601 Humboldt Plants of Northern Coast Ranges of California Bald Mountain, between High Prairie and Snow Camp, Humboldt County Comment
  UC1198688  Drymocallis lactea var. austiniae Joseph P. Tracy 1933-7-25 12841 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC77997  Drymocallis rhomboidea D. K. Imper 1982-7-2 1412 Humboldt Near Connely Creek, N Fork 1493 Comment
  UC1239776  Dryopteris arguta Joseph P. Tracy 1931-1-24 9280 Humboldt Alton; Northern Coast Region 30 Comment
  BLMAR300  Dryopteris expansa Jennifer Anthony-Wheeler 2002-6-10 300 Humboldt South Spit, on North jetty, west of lone cypress 6 Comment
  RSA46702  Dryopteris expansa C. R. Fraser-Jenkins 1928-12-23 6761 Humboldt Humboldt Co. Comment
  HSC4390  Dysphania pumilio D. E. Anderson 1962-7-19 2277 Humboldt Lanphere's Ranch Comment
  UC1103659  Eleocharis bella Joseph P. Tracy 1931-9-7 9651 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC666920  Eleocharis bella Joseph P. Tracy 1935-7-17 14108 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC303018  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  SEINET201037  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Moutain, open glades along summit near Blake lookout. Comment
  UC1137130  Elymus X macounii August L. Hormay 1932-5-12 Humboldt Bull Creek Road; near bridge Comment
  CAS-BOT-BC227347  Elymus elymoides Joseph P. Tracy 1930-7-16 8955 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  HSC58637  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-31 11573 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC99108  Elymus elymoides var. elymoides Cara Witte 2007-6-27 373 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 2/10 mile from intersection with 4N32B. 1413 Comment
  RSA10137  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1067 Comment
  UCD61884  Elymus glaucus P. B. Kennedy 1923-8-2 Humboldt Near top of grade - Bluff Creek to Arcata. Comment
  UCD62255  Elymus glaucus P. B. Kennedy 1923-8-5 Humboldt West Fork of Eel River between Phillipsville and Garberville. 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
  HSC9728  Elymus mollis subsp. mollis E. W. Styskel 1964-5-7 82 Humboldt 2 miles S of Samoa near Samoa Rd. Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  CAS-BOT-BC204333  Elymus trachycaulus subsp. trachycaulus David D. Keck 1948-7-1 5969 Humboldt South side of Big Lagoon Comment
  HSC16340  Epilobium brachycarpum D. E. Anderson 1961-9-23 1833 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC56983  Epilobium brachycarpum Overton, Marvin Butler 1979-7-23 9524 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 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
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  CDA30723  Epilobium ciliatum M. K. Beyers, I. Shepardson 2009-9-13 253 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC75288  Epilobium ciliatum subsp. ciliatum J. O. Sawyer, M. A. Ericksen 1980-8-18 4060 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  POM249603  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock, J. P. Martin 1939-7-14 5441 Humboldt 7 miles east of Shelter Cove Comment
  HSC42876  Epilobium ciliatum subsp. glandulosum Thomas W. Nelson, James Nelson 1976-7-28 3079 Humboldt Between Alder Springs and Rd. to Pine Mtn. 1524 Comment
  HSC23739  Epilobium ciliatum subsp. watsonii Tim Baroni 1971-6-23 4 Humboldt About 1 mi. S of Ferndale on Mattole Rd. Comment
  RSA22708  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC161072  Epilobium foliosum Joseph P. Tracy 1911-7-4 3301 Humboldt near creek mouth Northern Coast Ranges, Willow Creek (tributary of Trinity River) 152 Comment
  HSC55081  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11736 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS31491  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt near Ranger Station (along streamlet); Trinity Summit 1828 Comment
  HSC39527  Epilobium minutum Thomas W. Nelson 1976-6-14 2709 Humboldt S of Lassic Peak 1524 Comment
  HSC56949  Epilobium minutum Overton, Butler 1979-7-23 9447 Humboldt Near Horse Mtn., close to the town of Willow Creek 1295 Comment
  HSC67186  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5422 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  UC1198480  Epilobium minutum Joseph P. Tracy 1927-6-12 8164 Humboldt Horse Mountain Northern Coast Ranges (lower slopes) 1066 Comment
  HSC102004  Equisetum arvense M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 905 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1239788  Equisetum hyemale subsp. affine Joseph P. Tracy 1936-6-3 14844 Humboldt at Willow Creek Trinity River Valley 152 Comment
  RSA21604  Equisetum telmateia var. braunii C. B. Wolf 1937-9-14 9351 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  SEINET200658 Image available Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Damp sand bar along river Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC299911  Erechtites minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  RSA89771  Erechtites minimus P. A. Munz 1954-7-25 19871 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC27395  Eremocarpus setiger Thomas W. Nelson 1970-9-3 220 Humboldt Mad River. Comment
  CAS-BOT-BC298297  Ericameria nauseosa var. speciosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt 1524 Comment
  UC34650  Ericameria nauseosa var. speciosa Chesnut and Drew 1888-8-2 Humboldt Grouse Creek Comment
  SEINET5708560 Image available Erigeron aliceae Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6106 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 leafhand 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 (7N04), travel 1.5 miles to another fork; continue on 7N04 (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collections site is a short distance up this road. Comment
  UC1223012  Erigeron annuus Joseph P. Tracy 1949-10-9 18585 Humboldt Eureka Eureka (weed in garden) Comment
  UC169065  Erigeron annuus Joseph P. Tracy 1912-7-4 3724 Humboldt near Hydesville (in orchard); Northern Coast Region 60 Comment
  RSA168814  Erigeron decumbens var. robustior Joseph P. Tracy 1942-7-4 17371 Humboldt McClellan Mountain at 'Camp Desparation' near the old Sweany place, 2 miles west of McClellan House 610 Comment
  CAS-BOT-BC296121  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-24 4870 Humboldt Gambi's Comment
  SEINET11859407  Erigeron foliosus var. confinis H. P. Chandler 1901-1 1427 Humboldt North Coast Ranges, Klamath River 244 Comment
  UC468817  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale Jun 20 1899-Jan 1 1900 5713 Humboldt Hoopa Valley North-Western California, Mendocino Comment
  CAS-BOT-BC300679  Erigeron foliosus var. mendocinus Carl Purdy 1938-1-1 s.n. Humboldt Van Duzen River 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
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  HSC79512  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  RSA259565  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 J- 1221 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UC1223009  Erigeron robustior Joseph P. Tracy with Mr. Murphy 1951-6-26 19581 Humboldt Twin Lakes vicinity Comment
Read comments
Sep 3 2011
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  CAS-BOT-BC300290  Erigeron supplex Dr. A. Kellogg; W. G. W. Harford 1868-1-1 382 Humboldt Unspecified Comment
  CAS-BOT-BC224255  Eriodictyon californicum Doris K. Kildale 1925-6-21 747 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  CAS-BOT-BC224254  Eriodictyon californicum L. R. Abrams 1918-6-17 7208 Humboldt Hoopa to Briars Resort on road to Korbel Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC259183  Eriogonum latifolium W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka Comment
  UC1222342  Eriogonum latifolium Joseph P. Tracy June 1950 18762 Humboldt near Petrolia (roadside, e slope of Domingo Hill, between town and Ocean); Domingo Hill Comment
  CAS-BOT-BC259286  Eriogonum lobbii Dave Imper 1985-7-30 s.n. Humboldt Six Rivers National Forest. N of Orleans Mountain 1737 Comment
  JEPS57407  Eriogonum luteolum L. R. Heckard with T. I. Chuang 1968-7-5 1987 Humboldt 4.3 mi n, on Mail Ridge road Harris road Comment
  HSC74306  Eriogonum nudum M. A. Baker 1980-7-24 3204 Humboldt Near Orleans Mtn. 1625 Comment
  HSC99018  Eriogonum nudum var. nudum Cara Witte 2008-7-14 902 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  HSC99068  Eriogonum nudum var. oblongifolium Cara Witte 2007-6-19 297 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC72976  Eriogonum umbellatum D. K. Imper 1981-8-12 907 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  JEPS56214  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1935-7-28 14328 Humboldt Head of Devil's Hole Trinity Summit Comment
  RSA0005167  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  HSC55278  Eriogonum umbellatum var. stellatum Overton, Butler 1979-8-2 12689 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC301011  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1928-7-24 5277 Humboldt Horse Mountain 914 Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  CAS-BOT-BC301016  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1936-6-10 14929 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 457 Comment
  HSC91916  Eriophyllum lanatum var. arachnoideum E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  UC302292  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1926-6-18 7607 Humboldt Humboldt Hill Northern Coast Region, around Humboldt Bay, Humboldt Hill 152 Comment
  HSC67463  Eriophyllum lanatum var. grandiflorum J. P. Smith, Steve Selva 1970-6-14 3820 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC76599  Eriophyllum lanatum var. grandiflorum Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC673207  Eriophyllum lanatum var. lanceolatum Lincoln Constance and Reed C. Rollins 1942-5-12 2890 Humboldt 12 mi n Weitchpec; Klamath-Siskiyou Region, Klamath River 121 Comment
  RSA846  Eriophyllum staechadifolium E. R. Johnson 1928-8-25 1144 Humboldt Eureka Comment
  UC582674  Eriophyllum staechadifolium Joseph P. Tracy 1934-7-2 13291 Humboldt bluffs along ocean Trinidad Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  UC1199177  Erysimum capitatum Joseph P. Tracy 1927-6-12 8149 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  HSC36913  Erysimum capitatum var. capitatum John Rehling, Robert M. Specht 1976-2-20 111 Humboldt Along Kneeland Rd., halfway to Bridgeville Comment
  HSC74289  Erysimum capitatum var. capitatum M. A. Baker 1980-7-19 3013 Humboldt Near Bret Hole. 1814 Comment
  HSC47486  Erysimum menziesii Sheila Logan 1978-4-7 4 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC6772  Erysimum menziesii Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  HSC48757  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel 1973-6-10 71 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA367654  Erythronium revolutum Thomas W. Nelson 1976-4-3 2283 Humboldt Hwy 36 at east end of Swains Flat. Comment
  HSC73143  Eschscholzia californica M. A. Baker 1980-5-18 1331 Humboldt Near Black Mtn. 792 Comment
  UC1196290  Eschscholzia californica Joseph P. Tracy 1912-7-4 3734 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC103834  Eucephalus tomentellus Haggard 2000-8-22 71957 Humboldt Along US Forest Service Rd. 1, southeast of Blue Lake Comment
  POM182421  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC1199299  Eucephalus tomentellus Joseph P. Tracy 1932-7-12 10437 Humboldt Corral Prairie, (open places at) Trinity Summit 1584 Comment
  JEPS20472  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC1199356  Euchiton sphaericus Joseph P. Tracy 1948-9-26 18230 Humboldt 6 mi SE of Arcata (Fickle Hill) 609 Comment
  UC204747  Euchiton sphaericus Joseph P. Tracy 1918-9-29 5103 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC552229  Euchiton sphaericus Joseph P. Tracy 1935-9-1 14752 Humboldt near Dyerville; Northern Coast Ranges 91 Comment
  SEINET11850490  Eupatorium occidentale J. P. Tracy 1950-1 19223 Humboldt Friday Ridge 1219 Comment
  UC1198970  Euphorbia crenulata Joseph P. Tracy 1912-8-1 3960 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC581784  Eurybia radulina Joseph P. Tracy 1929-10-6 8677 Humboldt Kneeland Prairie, on Butler Valley Road Kneeland Prairie 609 Comment
  HSC97536  Euthamia occidentalis Ivy Watson 2008-9-17 18 Humboldt Mad River Park on West End Rd., near pumping station, 200 ft. from the water 8 Comment
  SEINET5781777 Image available Euthamia occidentalis S. K. Harris, C. Wilder 1938-9-7 Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  UC1199324  Euthamia occidentalis Joseph P. Tracy 1919-9-14 5206 Humboldt near mouth, (valley of Trinity River) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  HSC9991  Festuca arundinacea D. E. Anderson 1965-9-5 4084 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC96234  Festuca californica Sara March , Gillian Levy 2005-6-3 6 Humboldt 19.3 mi S of Hwy 299 on NF1 1240 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  UC1103703  Festuca elmeri Joseph P. Tracy 1942-5-16 17339 Humboldt Garberville 152 Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC75355  Festuca occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3644 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC91397  Festuca occidentalis Maggie Wolf, Scott Brush, Ross Jones 1990-4-27 61 Humboldt Gray's Falls Campground, Hwy. 299 259 Comment
  SEINET175520 Image available Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River near Bridgeville Comment
  UC70924  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5427 Humboldt near Hubbards Comment
  UCD66182  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UC525638  Festuca roemeri Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  HSC39052  Festuca rubra Linda M. Barker 1976-6-22 1617 Humboldt 3 mi. W of Arcata Comment
  POM198640  Festuca subulata Joseph P. Tracy 1916-6-25 4745 Humboldt Redwood Creek, at point east from Trinidad. 152 Comment
  UC1103708  Festuca subulata Joseph P. Tracy 1921-4-17 5429 Humboldt Alton Northern Coast Ranges 30 Comment
  UC180227  Festuca subuliflora Joseph P. Tracy 1913-6-10 4081 Humboldt near Strong's Station; Northern Coast Ranges, Van Duzen River 152 Comment
  HSC38631  Festuca viridula D. E. Anderson, J. P. Smith 1971-6-14 - 1050 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  CAS-BOT-BC453518  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  CHSC23878  Fragaria chiloensis A. R. Morrison 1974-4-27 Humboldt Throughout understory along immediate coastal cliffs ca. 2 mi. n of Trinidad. Comment
  UC154220  Fragaria chiloensis J. P. Tracy 1906-4-29 2423 Humboldt Eureka, immediate vicinity of Comment
  UC584127  Fragaria chiloensis David D. Keck and J. Clausen 1935-6-16 3390 Humboldt mouth of Little River Comment
  HSC18615  Fragaria vesca J. J. Wagoner 1965-5-1 25 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  HSC24051  Fragaria vesca J. O. Sawyer 1971-6-15 2382 Humboldt S of Lipps Camp along Horse Linto Creek 1372 Comment
  CAS-BOT-BC457921  Fragaria vesca subsp. californica Doris K. Kildale 1929-4-27 7461 Humboldt Willow Creek - Selya road, 3 miles north of Willow Creek, in Trinity River Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  HSC60190  Frangula californica J. P. Smith, J. O. Sawyer 1975-4-6 8053 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  CAS-BOT-BC59968  Frangula purshiana Harley P. Chandler 1901-5-1 1173 Humboldt Humboldt Bay. 30 Comment
  CAS-BOT-BC59995  Frangula purshiana L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  HSC18417  Frangula purshiana L. J. Coombes 1964-5-18 50 Humboldt 2.5 mi E of McKinleyville on Hwy. 299 Comment
  UC1173690  Fraxinus latifolia Joseph P. Tracy 1939-5-6 16279 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  UC1197625  Fritillaria affinis Joseph P. Tracy 1933-6-13 12575 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC15544  Fritillaria affinis W. D. Stevens 1964-3-18 12 Humboldt 1.0 mi. S of Trinidad on Old Hwy. 101 Comment
  UC176062  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3913 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC95075  Galium aparine Andrea Pickart 2002-6-30 133 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  HSC19850  Galium aparine J. W. Johnson 1962-4-18 1262 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  HSC79374  Galium aparine Kenneth Clark 1980-3-27 551 Humboldt Above S Fork of Dead Man's Gulch 183 Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC602527  Galium californicum subsp. californicum Joseph P. Tracy 1936-6-27 15000 Humboldt Miranda South Fork Eel River 121 Comment
  JEPS52855  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3864 Humboldt 4.2 mi e Garberville (on road to Harris, at crest of ridge) 640 Comment
  UC1196117  Galium californicum subsp. californicum Joseph P. Tracy 1934-7-9 13337 Humboldt ridge 5 mi s Harris 762 Comment
  UC1225914  Galium divaricatum Joseph P. Tracy 1946-7-13 17614 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  HSC57324  Galium mexicanum var. asperrimum Overton, Butler 1979-7-24 9587 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1225913  Galium muricatum Joseph P. Tracy 1942-7-1 17359 A Humboldt opposite Buck Mountain (along river); Van Duzen River, Dinsmore's 762 Comment
  POM266215  Galium parisiense Joseph P. Tracy 1939-8-5 16378 Humboldt Dinsmore's. Comment
  SEINET11117326  Galium parisiense Unknown 1913-1 4083 Humboldt Rogers ranch, below Bridgeville on Van Duzen River, on dry rocky slopes. Altitude 500 ft. Comment
  HSC34701  Galium porrigens var. porrigens Thomas W. Nelson 1974-8-24 1702 Humboldt Weitchpec, under highway bridge over Klamath River Comment
  JEPS52751  Galium porrigens var. porrigens L. T. Dempster and G. L. Stebbins 1963-7-8 3843 Humboldt at highway crossing n Willow Creek town; Willow Creek 140 Comment
  HSC90645  Galium trifidum Gail Newton 1982-6-1 3570 Humboldt Elk River Wildlife Area, Eureka. Comment
  BLMAR418  Galium trifidum subsp. columbianum Jennifer Wheeler August, 2007 418 Humboldt South Spit, growing on East side near bay 9 Comment
  HSC58153  Galium triflorum G. L. Clifton, Griswold 1979-8-2 12205 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC19825  Galium triflorum Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  HSC98666  Galium triflorum Cara Witte 2007-7-2 398 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1589 Comment
  JEPS6536  Galium triflorum W. L. Jepson 1902-6 1957 Humboldt Redwood Creek Comment
  POM87665  Galium triflorum L. R. Abrams 1922-6-25 8301 Humboldt Near northern boundary. Comment
  UC166543  Gamochaeta ustulata Joseph P. Tracy 1911-7-9 3462 Humboldt near mouth of Willow Creek; North Coast Ranges, Valley of Trinity River, Willow Creek 152 Comment
  BLMAR538  Garrya buxifolia Jennifer Wheeler 2009-6-23 538 Humboldt King range, On King Peak road Comment
  HSC8387  Garrya elliptica H. E. Parks 1933-2 4287 Humboldt Trinidad, cliffs near ocean Comment
  CAS-BOT-BC182150  Garrya fremontii Carl B. Wolf 1930-10-24 1762 Humboldt Along the Klamath River, 1 mile above the mouth of Slate Creek 243 Comment
  HSC8399  Garrya fremontii Elrid H. Spinas 1948-5-22 37 Humboldt Horse Mtn. Comment
  HSC98071  Garrya fremontii Cara Witte 2007-7-12 530 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC668299  Garrya fremontii Joseph P. Tracy 1935-7-29 14342 Humboldt Trinity Summit; near ranger station 1828 Comment
  SEINET10559581  Gastridium phleoides Harley P. Chandler Chandler 1506 Humboldt Klamath River. 427 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  UC32666  Gaultheria ovatifolia Chesnut and Drew 1888-8-6 Humboldt Head of Redwood Creek Comment
  CHSC57372  Gaultheria shallon Eric G. Hartwell 1983-3-30 7 Humboldt Ca. 0.25 miles east of jct. of Jacoby Creek Rd. and Sonnenfelt Rd. T05N R01? S11 NW1/4 of SE1/4. 97 Comment
  HSC22501  Gaultheria shallon R. E. Thill 1965-4-27 20 Humboldt 1 mi. off Hwy. 299 on Essex Lane Rd. Comment
  HSC37335  Gaultheria shallon Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 480 Humboldt Along Lost Man Creek. 38 Comment
  HSC41340  Gaultheria shallon Brad Klipfel 1974-9-7 560 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  RSA257013  Gaultheria shallon Gary D. Wallace 1971-7-29 949 Humboldt Prairie Creek Redwood St. Pk. along Zig Zag Trail #3 W of Hwy. 101. Comment
  RSA467224  Gaultheria shallon H. E. McMinn 1931-6-28 2548 Humboldt Orick to Requa Comment
  SDSU2870  Gaultheria shallon Harvey 1938-8-13 2254 Humboldt West of Arcata. Comment
  UC1197592  Gaultheria shallon J. P. Tracy 1901-5-30 1114 Humboldt immediate vicinity Eureka 0 Comment
  HSC7814  Gaultheria shallon Neuns 1950-10-9 136 Humboldt 2 mi. W of Thorne 335 Comment
  HSC16391  Gayophytum diffusum J. P. Tracy 1933-8-30 13045 Humboldt Grouse Mtn. 1524 Comment
  HSC55115  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-8-1 11882 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UCR84793  Genista linifolia Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  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
  CAS-BOT-BC217417  Gentiana plurisetosa D. H. Esplin 1969-10-14 20 Humboldt One mile north of North Trinity Mountain, Six Rivers N.F. 1828 Comment
Read comments
Dec 21 2017
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  JEPS47021  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS47067  Gentiana sceptrum Milo S. Baker 1923-7-15 8 Humboldt Eureka Eureka Comment
  UC1197400  Geranium carolinianum Joseph P. Tracy 1912-6-30 3712 Humboldt Eureka, at the Stephen Hill place Northern Coast Region 0 Comment
  HSC54667  Gilia capitata Overton, Butler 1979-7-25 9904 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC179953  Gilia capitata subsp. capitata Joseph P. Tracy 1914-7-5 4550 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  CAS-BOT-BC225470  Gilia millefoliata Mrs. H. C. Cantelow 1935-5-31 825 Humboldt Unspecified Comment
  UC1197895  Gilia sinistra subsp. sinistra Joseph P. Tracy 1930-7-23 9133 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC16986  Gilia tricolor J. E. Lankila 1962-5-6 26 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  JEPS37565  Glebionis segetum W. L. Jepson and W. W. Mott 1903-6 2225 Humboldt bluff tops overlooking sea at Caspar 18 Comment
  CAS-BOT-BC218432  Glehnia littoralis subsp. leiocarpa Milo S. Baker 1927-8-16 2449 a Humboldt Near beach, Samoa Comment
  CAS-BOT-BC218435  Glehnia littoralis subsp. leiocarpa Carl B. Wolf 1937-6-18 8906 Humboldt Centerville Beach 3 Comment
  HSC10000  Glyceria borealis D. J. Wilder 1965-4-28 21 Humboldt 1/2 mi. W of Arcata on Samoa Rd. Comment
  UCD66780  Glyceria occidentalis August L. Hormay 1932-5-11 Humboldt Eureka, Arcata Swamp. Comment
  HSC98751  Glyceria striata Cara Witte 2007-7-11 499 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC303846  Gnaphalium Alice Eastwood 1923-8-14 12305 Humboldt Samoa Comment
  SEINET11849352  Gnaphalium chilense J. P. Tracy 1950-1 19044 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  HSC40378  Gnaphalium palustre Linda M. Barker 1976-8-2 1673 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC582519  Gnaphalium palustre Joseph P. Tracy 1930-10-12 99211 Humboldt Eel River, Alton to Fortuna; Eel River 15 Comment
  CDA6019  Gnaphalium palustre E. C. Whitney 1961-7-2 Humboldt A. Hartman property, McKinnleyville. 0 Comment
  UC1199342  Gnaphalium palustre Joseph P. Tracy 1927-9-4 8364 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC99669  Goodyera oblongifolia T. Jimerson, J. Pageau 1979-7-31 705 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC53979  Gratiola ebracteata Griswold, Butler 1979-7-11 7054 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  UC1222817  Gratiola ebracteata Joseph P. Tracy 1951-6-21 Humboldt bed of former Goose Lake (Hydesville, back of the Everett Beck house (formerly George Gray's)); bed of former Goose Lake Comment
  CAS-BOT-BC304742  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  UC1525546  Grindelia hirsutula John L. Strother 1986-10-12 1355 Humboldt on Samoa Blvd. (rte 255) w of Arcata (nw side of Arcata Bay (Humboldt Bay) opposite Emmerson Div., Sierra Pacific Inc., roadside above saltmarsh); Humboldt Bay, Arcata Bay Comment
  SEINET190492  Grindelia stricta var. stricta H. E. Parks 24190 Humboldt Big Lagoon Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  UC630634  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt on Van Duzen R. Blue Slide 91 Comment
  HSC56436  Helenium bigelovii Griswold, Butler 1979-7-12 7151 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SEINET5711015  Helenium bigelovii Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6103 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. Thake 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 fromt he road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 6.4 miles. At this point, the collection site is about 100 feet up 7NO4R. Comment
  RSA167314  Helenium bolanderi Joseph P. Tracy, H. E. Parks 1950-7-16 11686 Humboldt Park's place, 2 miles N of Trinidad. Comment
  UC32241  Helenium puberulum C. C. Marshall 1888-1-1 Humboldt Comment
  CAS-BOT-BC305348  Helianthus annuus Henry M. Pollard 1947-9-9 s.n. Humboldt Orleans Comment
  UC1368467  Hemizonella minima R. K. Gierisch 1969-7-1 3535 Humboldt Grouse Mtn. Six Rivers 1584 Comment
  CAS-BOT-BC306181  Hemizonia congesta subsp. congesta David D. Keck 1944-7-11 5497 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  POM228359  Hemizonia tracyi S. K. Harris 1936-6-20 s.n. Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  UC906659  Heracleum lanatum Joseph P. Tracy 1947-8-24 17915 Humboldt near Box Camp Trinity Summit 1524 Comment
  UC673047  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  HSC55976  Heracleum maximum G. L. Clifton 1979-7-31 11369 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC56157  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 12022 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA43856  Herniaria hirsuta subsp. cinerea H. M. Pollard 1948-8-10 s.n. Humboldt Whittaker s Roost (mining claim near Orleans). Comment
  SEINET10460607  Heterocodon rariflorum Willis L. Jepson Jepson 16394 Humboldt GARBERVILLE Comment
  CAS-BOT-BC311082  Heterotheca oregona var. rudis L. R. Abrams 1916-7-11 6066 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  POM288698  Heterotheca oregona var. rudis Lyman Benson 1928-7-12 477 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  CAS-BOT-BC420722  Heuchera micrantha var. diversifolia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC58353  Hieracium albiflorum Overton, Butler 1979-8-2 12691 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET10839135  Hieracium albiflorum Mary Merello 1993-6-19 Merello 661 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  HSC95113  Hieracium albiflorum Andrea Pickart 2002-6-30 130 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  RSA595781  Hieracium albiflorum R. S. Woglum 1931-7-15 24 A Humboldt Outer Coast Ranges, Sequoia Park. Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  POM160893  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt Around Humboldt Bay, old Kneeland Road 305 Comment
  HSC13459  Hippuris vulgaris Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC59059  Hippuris vulgaris Thomas Wood 1979-5-17 186 Humboldt Clam Beach pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC10130  Holcus lanatus R. V. Papike 1962-5-5 34 Humboldt On top of Fickle Hill, 2 miles W of Arcata. Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC89550  Holcus lanatus M. Roantree 1985-5-7 42 Humboldt SW side of Trinidad Head, along trail Comment
  RSA246896  Holcus lanatus R. F. Thorne, P. Everett 1965-8-8 35267 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  RSA53833  Holcus lanatus Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek, Orleans region. Comment
  BLMAR40  Holcus lanatus Brad Barr 1982-6-21 40 Humboldt King range, hidden valley enclosure Comment
  HSC98777  Holodiscus discolor Cara Witte 2007-8-8 623 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99600  Holodiscus discolor Gilbert Muth 1979-8-1 11881 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  SD42284  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 305 Comment
  UC555558  Holodiscus discolor H. L. Mason 1928-7-14 4905 Humboldt East Fork of Eel River near Garberville; East Fork of Eel River Comment
  HSC10160  Hordeum brachyantherum L. M. Malloy 1965-5-19 41 Humboldt Arcata, between Hwy. 101 and oxydation pond Comment
  UCD85874  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  JEPS44517  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt between Sommes Bar Jims Ranch; North Coast Ranges, Klamath River 426 Comment
  UC902134  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1947-7-5 17792 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC63030  Horkelia tridentata var. flavescens J. P. Smith, J. O. Sawyer 1973-5-12 6699 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC96270  Horkelia tridentata var. flavescens Wanda Naylor, Laurel Goldsmith 2005-6-24 15 Humboldt S of Grouse Mountain on NF1 1595 Comment
  HSC100515  Hosackia brachycarpa Carl C. Marshall May 1887 415 Humboldt Dry hillsides, S Humboldt. Comment
  HSC96156  Hosackia crassifolia var. crassifolia Thomas W. Nelson, Jane P. Nelson 1987-6-11 8531 Humboldt Along F.S. Rd. 13N01, 18 mi. from junction with State Route 96 1067 Comment
  HSC102016  Hosackia oblongifolia var. oblongifolia M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 917 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  OBI13229  Hosackia rosea Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie 12 mi SE of Arcata Comment
  UCD106050  Hosackia rosea Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie 12 miles southeast of Arcata. Comment
  HSC97436  Hydrocotyle ranunculoides Ivy Watson 2008-9-28 33 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  CDA38356  Hydrocotyle ranunculoides W. F. Cruickshank 1961-5-27 s.n. Humboldt Arcata, Weyerhauser Lumber Co. 0 Comment
  HSC21513  Hydrocotyle ranunculoides R. L. Jarvis 1962-4-29 34 Humboldt Clam Beach Lagoons, 0.5 mi S of Little River on Hwy 101 0 Comment
  HSC32280  Hydrophyllum occidentale D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5622 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC97448  Hydrophyllum occidentale C. Witte 2007-5-22 84 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  UC1239760  Hydrophyllum tenuipes Joseph P. Tracy 1933-5-28 12413 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC102581  Hypericum anagalloides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1568 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC53870  Hypericum anagalloides Griswold, Butler 1979-7-10 6350 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1198409  Hypericum anagalloides Joseph P. Tracy 1918-7-5 5005 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  POM146240  Hypericum formosum var. scouleri J. B. Feudge 1923-7-23 153 Humboldt Trinidad Comment
  UC1198412  Hypericum perforatum Joseph P. Tracy 1926-7-25 7754 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 152 Comment
  UC420746  Hypericum perforatum Harley P. Chandler June, 1901 1493 Humboldt Klamath R. North Coast Ranges, Klamath R. 426 Comment
  UCSB30591  Hypericum perforatum Edwards, David 1974-8-12 Humboldt S. side of 7th St; just W. of its overpass of U.S. 101; Areata 18 Comment
  UCD110368  Hypericum perforatum subsp. perforatum David Board 1920-9-1 s.n. Humboldt Lone Star Ranch, Iaqua. Comment
  HSC90427  Hypochaeris glabra Jean Hanson 1980-6-22 91 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka. W end of island; ca. 100 ft. inland from shore Comment
  HSC67871  Hypochaeris radicata J. P. Smith 1973-5-26 6879 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC90684  Hypochaeris radicata Gail Newton 1982-5-1 2488 Humboldt Eureka, Elk River Wildlife Area Comment
  SEINET11860415  Hypochaeris radicata Unknown 1933-8-6 s.n. Humboldt Eureka Comment
  UC909042  Ipomopsis aggregata Joseph P. Tracy 1933-7-25 12884 Humboldt Grouse Mtn Northern Coast Ranges 1524 Comment
  JEPS3745  Iris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3414 Humboldt just below Snow Camp Mountain, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1432 Comment
  UC1196393  Iris douglasiana Joseph P. Tracy 1924-8-3 6762 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC13852  Iris douglasiana W. R. Rogers 1966-5-9 305 Humboldt 3 mi. SE of Arcata, Fickle Hill Comment
  POM290986  Iris douglasiana Lyman Benson 1929-6-18 1734 Humboldt North of Arcata Comment
  RSA135856  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16510 Humboldt 21.2 miles south of Scotia, Highway 101 Comment
  JEPS79908  Iris macrosiphon Joseph P. Tracy 1941-3-23 16808 Humboldt 3 mi w Bridgeport (near e margin of redwood belt through s Humboldt County) 198 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
  RSA136521  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17191 Humboldt 10.1 miles southwest from Trinity - Humboldt County line; 5.2 miles north of Harris on road to Zenia Comment
  HSC65226  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 437 Humboldt Ishi Pishi Rd., 1.2 mi. S of jct. with FS Rd. 11N11, NW side of road, Orleans 271 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
  RSA298350  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 440 Humboldt 1.3 miles south of Hwy 96 on Ishi Pishi Road, west side of road, Orleans; aspect 52E 232 Comment
  HSC64219  Iris tenuissima J. O. Sawyer, M. A. Ericksen 1979-6-23 3382 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  JEPS93174  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 Comment
  UC668264  Isopyrum stipitatum Joseph P. Tracy 1935-5-5 13802 Humboldt Kneeland Prairie 822 Comment
  CAS-BOT-BC340152  Jaumea carnosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1173 Humboldt Around Fields Landing Comment
  CAS-BOT-BC340155  Jaumea carnosa Doris K. Kildale 1929-6-6 8484 Humboldt Stone Lagoon Comment
  CAS-BOT-BC340154  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  UC1152088  Juncus articulatus Joseph P. Tracy 1927-8-7 8310 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC45436  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4402 Humboldt Wet alluvial soil at Lost Lake 1433 Comment
  HSC40945  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt 3 mi. W of Arcata Comment
  HSC13999  Juncus bufonius C. S. Chavez 1965-5-9 70 Humboldt Jct. of Bayside and Freshwater Rds. Comment
  HSC97983  Juncus covillei Cara Witte 2007-7-11 496 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC23674  Juncus covillei Tim Baroni 1971-6-25 56 Humboldt Comment
  HSC69862  Juncus ensifolius Thomas W. Nelson, Ken Hindley 1978-5-28 4085 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC1152105  Juncus exiguus Joseph P. Tracy 1930-7-17 8982 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SD88349  Juncus falcatus Darley F. Howe 1972-6-30 Humboldt Trinidad. Comment
  CHSC102933  Juncus laccatus Peter F. Zika 2007-7-30 23330 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UCD141574  Juncus lescurii Linda M. Barker 1976-6-22 1620 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. 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
  UC249746  Juncus occidentalis Joseph P. Tracy 1923-6-19 6295 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  RSA178532  Juncus tenuis Joseph P. Tracy 1937-8-3 15609 Humboldt Near Blue Lake, along Mad River. 15 Comment
  SEINET11789825  Juncus tenuis J. P. Tracy 1937-1 15609 Humboldt near Blue Lake, along Mad River 15 Comment
  UC577409  Keckiella corymbosa Joseph P. Tracy 1933-9-9 13074 Humboldt vicinity Garberville (rocks along South Fork of Eel River); South Fork of Eel River 121 Comment
  UC582862  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt 5 mi n Humboldt-Mendocino County line (south fork of Eel River); Eel River Comment
  HSC28175  Kickxia elatine David Johnson 1973-11-15 Humboldt West End Rd., 50 yds. N of Hwy. 101 overpass, beside railroad tracks Comment
  UC922033  Koeleria macrantha Joseph P. Tracy 1936-8-2 15072 Humboldt French Camp Ridge 1066 Comment
  UC1223224  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard, along road near old house, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC302193  Lapsana communis Joseph P. Tracy 1926-6-6 7553 Humboldt Bair's on Redwood Creek Northern Coast Ranges, Redwood Creek 304 Comment
  UC1199124  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-19 10249 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1199083  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1922-4-30 6010 Humboldt near The South Fork; Trinity River Valley 182 Comment
  HSC33764  Lathyrus littoralis Paul Dryden 1975-5-24 206 Humboldt Samoa Dunes, across from the boat landing. Comment
  JEPS55275  Lathyrus littoralis unknown 1926-7-29 115 Humboldt Samoa Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  SD39835  Lathyrus littoralis Charlotte M. Hook 1931-7-15 2104 Humboldt Eureka Comment
  HSC62924  Lathyrus littoralis J. M. DiTomaso 1979-4-22 913 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  POM214877  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt Sand dunes near Samoa, on Humboldt Bay. Comment
  HSC71466  Lathyrus nevadensis var. nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6701 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS79916  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt Northern Coast Ranges, South Yager Creek Valley South Yager Creek Valley; Northern Coast Ranges, South Yager Creek Valley 762 Comment
  UC15342  Lathyrus nevadensis var. nevadensis State Survey 1800-1 Humboldt Comment
  HSC64183  Lathyrus polyphyllus J. O. Sawyer, M. A. Erickson 1979-6-23 3392 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA168909  Lathyrus polyphyllus Joseph P. Tracy 1951-6-16 19469 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. On the Takilma-Happy Camp Road. 1280 Comment
  SEINET200583  Lathyrus polyphyllus Joseph Tracy 1935-7-22 14126 Humboldt Trinity Summit Klamath Mountains; In fir woods near Corral Prairie 1524 Comment
  JEPS55296  Lathyrus torreyi W. L. Jepson 1934-5-7 16705 Humboldt Buckeye Prairie Bull Creek Comment
  UC931763  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19081 Humboldt ca 15 mi n Garberville (Redwood Highway) Comment
  HSC26250  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson 1972-11-2 700 Humboldt Hwy. 36, 5 mi. W of Dinsmore. Comment
  SEINET12158645  Lathyrus vestitus subsp. bolanderi J. P. Tracy 1949-1 18327 Humboldt on the Butter Valley Rd, 2miE of Kneeland 610 Comment
  HSC103352  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7407 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  UC1199084  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1924-8-10 6814 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC325996  Layia carnosa Frank W. Peirson 1923-7-11 3905 Humboldt 18 miles N of Eureka. Comment
  UC165025  Layia carnosa J. P. Tracy 1901-4-14 1017 Humboldt opp. Eureka Samoa Comment
  UC1199156  Layia gaillardioides Joseph P. Tracy 1927-6-18 8182 Humboldt Cape Mendocino 3 Comment
  UC672866  Lemna turionifera Joseph P. Tracy 1935-7-17 14109 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  CAS-BOT-BC89492  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC201614  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC709460  Lepidium strictum Joseph P. Tracy 1941-5-4 16866 Humboldt Scotia 30 Comment
  HSC22865  Leptosiphon androsaceus D. E. Anderson 1965-5-8 3636 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  SEINET7967472 Image available Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  UCD118596  Leptosiphon androsaceus Joseph P. Tracy 1948-6-13 18048 Humboldt near Harris (2 miles north.) 609 Comment
  HSC96956  Leptosiphon bolanderi Ryoko Ito, Shauna McDonald 2007-6-11 5 Humboldt 14 mi. above 299, on FS Rd. NF1 1372 Comment
  UC34189  Lessingia nemaclada Harley P. Chandler June, 1901 1503 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  RSA54146  Lessingia nemaclada H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  UC166082  Leucanthemum vulgare Joseph P. Tracy 1909-5-30 2978 Humboldt immediate vicinity of Eureka 0 Comment
  CDA7526  Leucanthemum vulgare T. C. Fuller 1958-6-17 1832 Humboldt Freeway at Arcata. 0 Comment
  SEINET197649 Image available Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt Trinity summit near Ranger Station 1830 Comment
  JEPS17505  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  UC1197169  Ligusticum grayi Joseph P. Tracy 1932-7-12 10444 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  RSA74747  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On road to Bald Mountain, east of Korbel Comment
  CAS-BOT-BC132967  Lilium rubescens Alice Eastwood; John Thomas Howell 1937-6-22 4730 Humboldt Near Alder Point Comment
  JEPS62029  Lilium rubescens Mrs. M. H. Manning 1901-7-27 319 Humboldt Bald Hills Comment
  HSC100558  Lilium washingtonianum Carl C. Marshall Jun 1885 88 Humboldt Coyote Camp. Comment
  UC1197411  Limnanthes douglasii Joseph P. Tracy 1927-7-4 8240 Humboldt Lone Star Creek Northern Coast Ranges (Iaqua region) 609 Comment
  UC1537005  Limnanthes douglasii Gordon H. True Jr. 1936-5-11 462 Humboldt 12 mi w Miranda (e of Elk Ridge); Elk Ridge 457 Comment
  CDA1626  Limnobium laevigatum Gordon Leppig, Tony LaBanca 2003-3-13 1823 Humboldt Alder Grove Pond, Arcata. Comment
  RSA246709  Limonium californicum Robert F. Thorne, Percy C. Everett 1965-8-7 35211 Humboldt Samoa Peninsula. 0 Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC1198591  Linanthus androsaceus Joseph P. Tracy 1923-6-3 6252 Humboldt Kneeland Prairie 762 Comment
  JEPS58249  Linanthus bicolor Joseph P. Tracy 1933-6-13 12576 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  UC52822  Linanthus ciliatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  POM203675  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  HSC100707  Linnaea borealis Carl C. Marshall Jun 1886 258 Humboldt E of Hoopa. Comment
  HSC76247  Linnaea borealis subsp. longiflora Teresa Prendusi 1981-7-7 122 Humboldt Near Slate Creek Butte. 1158 Comment
  RSA0087555  Linnaea borealis subsp. longiflora S. S. Tillett 1956-7-6 614 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  UC1046522  Listera caurina R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Bald Mountain, Snow Camp 1432 Comment
  HSC36649  Listera cordata var. nephrophylla J. D. Ackerman 1975-6-4 445 Humboldt 4 mi. E of Hwy. 101 on Bald Hills Rd., Redwood National Park 335 Comment
  HSC73409  Listera cordata var. nephrophylla Bruce Potter, Leslie Sieburth, Susan Ahrens 1981-4-19 653 Humboldt 229 Comment
  JEPS37738  Lithocarpus densiflorus W. L. Jepson and W. W. Mott Jul 3 1903-Jul 5 1903 Humboldt Briceland; sw Humboldt County Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek Comment
  RSA55100  Lithocarpus densiflorus var. densiflorus O. J. Murie 1934-11-30 2532 Humboldt South of Gerberville. Comment
  UC1196490  Lithophragma affine Joseph P. Tracy 1941-3-26 16819 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1223120  Logfia filaginoides Joseph P. Tracy 1947-5-24 17695 Humboldt on rocky cliff known as Devil's Canyon Comment
  UC1100297  Lolium multiflorum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1177 Humboldt Salt Marshes around Fields Landing; Salt marshes around Fields Landing Comment
  HSC10309  Lolium perenne E. W. Styskel 1964-4-25 69 Humboldt Alongside College Elementary School on Humboldt State College Campus, Arcata. Comment
  RSA44450  Lolium perenne subsp. multiflorum Henry M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  CAS-BOT-BC271059  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  CDA38344  Lomatium californicum Kaylea Eickhoff, Cara M. Witte 2005-6-24 16 Humboldt Approx. 13 miles south of Hwy 299 on NF1. Comment
  HSC39199  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson, J. P. Smith 1971-7-6 1323 Humboldt 2 mi. E of Pine Ridge Summit Comment
  RSA28899  Lomatium dissectum var. dissectum Lincoln Constance, A. A. Beetle 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC183629  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothills on n.w. slope Buck Mt.; Northern Coast Ranges, Buck Mt. 762 Comment
  UC642280  Lomatium dissectum var. dissectum Joseph P. Tracy 1930-6-29 8808 Humboldt lower foothills on n.w. slope Buck Mt.; Northern Coast Ranges, Buck Mt. 762 Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  UC1565807  Lomatium macrocarpum R. Spellenberg 1990-7-10 Humboldt 7.5 air mi. s.w. Salyer (on U.S.F.S. Rd. 6N08, on Friday Ridge 0.4 mi. n.e. of junction with U.S.F.S. Rd. 1, extreme e. edge county); Friday Ridge 1371 Comment
  HSC82036  Lomatium macrocarpum Thomas W. Nelson, James Nelson 1980-6-10 5404 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC1167734  Lomatium macrocarpum Peter Raven with R. Snow 1958-7-20 13637 Humboldt 2.0 mi. s. junction of Titlow Hill and Friday Ridge rds. (near Grouse Mt.) Comment
  RSA452594  Lomatium tracyi B. Kelly 1977-7-16 537 Humboldt 1/4 mile in from Horse Mountain Road, 1/2 mile below turnoff to summit, near end of unused gravel road. Comment
  UC906647  Lomatium triternatum var. triternatum Joseph P. Tracy 1947-7-5 17778 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC162919  Lomatium utriculatum Joseph P. Tracy 1911-7-7 3374 Humboldt 3 mi. n.w. junction of Willow Creek w/ Trinity R. (at meadows on mt. side, and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  SEINET13944678 Image available Lomatium utriculatum William A. Weber 1965-1 12292 Humboldt slope above Van Duzen River W of Dinsmore; 2400 ft alt 732 Comment
  HSC58290  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12554 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC60070  Lonicera hispidula var. vacillans M. A. Baker 1978-5-6 502 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  JEPS12840  Lonicera hispidula var. vacillans Lincoln Constance 1934-5-29 717 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  SD88367  Lonicera involucrata Darley F. Howe 1972-5-7 Humboldt Trinidad head light station. Comment
  SDSU2899  Lonicera involucrata D. F. Howe 1961-8-1 3104 Humboldt 6 miles north of Trinidad on #101. Comment
  CHSC97979  Lonicera involucrata var. ledebourii Allison Poklemba 2002-4-10 5 Humboldt Pump Station 1 of the Mad River along Warren Creek Rd., Arcata. 13 Comment
  SBBG69582  Lonicera involucrata var. ledebourii S. W. Hutchinson -Apr-1927 91 Humboldt near Eureka 8 Comment
  UC719786  Lonicera involucrata var. ledebourii Rogers McVaugh 1941-8-3 6217 Humboldt ca. 1 1/4 mi s H.Q. Patrick's Point State Park Comment
  SBBG52990  Lotus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, Loleta, 10 mi S of Eureka Comment
  UC162608  Lotus aboriginus W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  UC1223442  Lotus aboriginus Joseph P. Tracy 1937-8-15 15668 Humboldt 10 mi se Orick (near Sherman Lyon's Ranch) Comment
  HSC46017  Lotus corniculatus Catherine Chin 1978-8-5 100 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  UC726594  Lotus denticulatus A. A. Heller 1923-7-10 13791 Humboldt between Scotia and Pepperwood; Eel River Comment
  UC1197316  Lotus formosissimus Joseph P. Tracy 1927-4-24 7945 Humboldt near Fortuna; Northern Coast Ranges 60 Comment
  UC1197308  Lotus humistratus Joseph P. Tracy 1931-5-3 9354 Humboldt near Blue Lake; Northern Coast Region, Mad River 15 Comment
  UC1223430  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Samoa Sand Dunes Comment
  UCR45449  Lotus micranthus Barry Silver 1986-4-23 524 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC97929  Lotus nevadensis var. douglasii Cara Witte 2007-6-14 284 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  UC495717  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1223423  Lotus pinnatus Joseph P. Tracy 1937-7-19 15461 Humboldt Larrabee Valley 731 Comment
  SEINET12154263  Lotus purshianus L. K. Henry 1971-1 s.n. Humboldt along rt 36, 2miE of Dinsmore in Six Rivers National Forest Comment
  UC15500  Lotus purshianus var. purshianus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5613 Humboldt Bald Mt. Comment
  UC162810  Lotus wrangelianus Joseph P. Tracy 1909-5-16 2967 Humboldt near Trinidad; Northern Coast Ranges 15 Comment
  UC1197303  Lotus wrangelianus Joseph P. Tracy 1927-6-18 8178 Humboldt on road from ocean towards Petrolia; Northern Coast Ranges, Cape Mendocino 30 Comment
  UC198627  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  RSA21198  Luina hypoleuca C. B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 miles above Orleans. Comment
  CAS-BOT-BC201192  Lupinus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SEINET5736964 Image available Lupinus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6113 Humboldt Collected in a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel company and across the road from T.P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  UC1223277  Lupinus adsurgens Joseph P. Tracy 1933-7-26 12912 Humboldt Grouse Mountain, top of mountain 1630 Comment
  SEINET5766882 Image available Lupinus affinis J. P. Tracy 1947-1 17677 Humboldt near Briceland Comment
  UC1129355  Lupinus arboreus H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quadrangle Comment
  RSA183596  Lupinus arboreus var. arboreus C. F. Zeillemaker 1964-4-7 64 -A-006 Humboldt Three miles southwest of Samoa on Samoa Peninsula at U.S. Coast Guard Station. 3 Comment
  RSA246780  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35328 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC14796  Lupinus bicolor J. W. Johnson 1962-4-18 1249 Humboldt Arcata, Mad River County Park. Comment
  HSC45091  Lupinus bicolor R. Sutherland 1978-4-23 1 .23478 Humboldt Head of Kinsey (Fraser) Ridge 716 Comment
  CAS-BOT-BC8425  Lupinus constancei T. W. Nelson; J. P. Nelson 1982-7-9 7079 Humboldt Blocksburg Quadrangle. Mt. Lassic (Signal Peak) and saddle to east. Comment
  CAS-BOT-BC205381  Lupinus elmeri Joseph P. Tracy 1930-7-16 8954 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1737 Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  UC503014  Lupinus elmeri Joseph P. Tracy Jul 16 1930-Jul 19 1930 8954 Humboldt near Blake lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC61195  Lupinus latifolius Jimerson, J. Pageau 1979-5-24 475 Humboldt Near Orleans 226 Comment
  UC205470  Lupinus latifolius var. latifolius Joseph P. Tracy 1919-5-31 5174 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, Willow Creek (trib. of Trinity River) 152 Comment
  SEINET12154580  Lupinus lepidus H. P. Chandler 1901-1 1498 Humboldt Klamath River 427 Comment
  HSC95097  Lupinus littoralis Andrea Pickart 2002-7-3 151 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  HSC41636  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3511 Humboldt Along rd. to Pine Mtn. SW of Alder Springs 1494 Comment
  UC1197272  Lupinus nanus Joseph P. Tracy 1914-5-14 4450 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  BLMAR810  Lupinus nanus Madeleine Hassett 2017-6-8 810 Humboldt Headwaters Forest Reserve, old road clearing in second geowth redwood/fir Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  UC169007  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region 30 Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC59452  Lupinus tracyi Richard Runyon 1979-6-27 42 Humboldt Along trail to Trinity Summit Station, 50' S of intersection of Grogan hole-Devils backbone trail 1768 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
  SEINET12154788  Lupinus variicolor J. P. Tracy 1938-1 16046 A Humboldt Brainards Point, betw Eureka and Arcata Comment
  HSC102922  Luzula M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1001 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1152142  Luzula cascadensis Joseph P. Tracy 1930-7-17 8972 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  HSC45642  Luzula comosa Diane L. Reed 1978-4-22 17 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC74420  Luzula comosa Gail Newton 1980-8-10 2042 Humboldt Near Blake Mountain 1707 Comment
  HSC98577  Luzula comosa Cara Witte 2007-5-26 658 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  UC1152128  Luzula comosa Joseph P. Tracy 1934-6-27 11040 Humboldt in open forest Horse Mountain Horse Mountain 1432 Comment
  CAS-BOT-BC436736  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  HSC39164  Luzula parviflora D. E. Anderson, J. P. Smith 1971-6-28 - 1239 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC58241  Luzula parviflora G. L. Clifton, Griswold 1979-8-2 12406 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  RSA183532  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  RSA246934  Lycopodiella inundata R. F. Thorne, Percy C. Everett 1965-8-7 35192 Humboldt Big Lagoon, south end. 2 Comment
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach Comment
  JEPS86070  Lycopodium clavatum Wayne Roderick 1966-8-8 Humboldt Georgia-Pacific property near Big Lagoon Comment
  UCD135966  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  OBI1067  Lycopodium clavatum Lawrence L. Kiefer 1964-5-20 1435 Humboldt Near Trinidad, one mile E of Moonstone Beach on Kuntz property 91 Comment
  UC577389  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1198268  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  JEPS42815  Lysichiton americanus Lincoln Constance 1934-6-18 894 Humboldt near South Fork Rail Road Station and Post Office (border of North Dyerville Flat, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  UC144652  Lythrum hyssopifolia J. P. Tracy 1903-8-2 1924 Humboldt immediate vicinity of Eureka 0 Comment
  HSC43203  Lythrum hyssopifolia R. Sutherland 1976-8-13 17 .13876 Humboldt Gravel bar in Redwood Creek in Redwood grove. 87 Comment
  HSC78755  Lythrum hyssopifolia L. P. Janeway, Paul Wilson 1984-5-25 821 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC90841  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  RSA0015875  Lythrum hyssopifolia H. M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Comment
  HSC97613  Madia elegans Cara Witte 2007-6-4 180 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  JEPS7505  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC581814  Madia gracilis Joseph P. Tracy 1933-7-21 12817 Humboldt on road from Van Duzen River to South Yager; Bald Hills region, Redwood House 762 Comment
  UC1134630  Maianthemum dilatatum H. S. Yates 1936-6-23 5864 Humboldt 1 mi. s. Loleta; Rohnerville Quad. Comment
  CAS-BOT-BC508502  Maianthemum dilatatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508504  Maianthemum dilatatum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC41355  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-8-2 507 Humboldt Horse Mtn. Comment
  HSC44336  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1975-6-17 675 Humboldt Horse Mtn. Comment
  HSC49030  Maianthemum racemosum subsp. amplexicaule Patricia Shesgreen 1978-5-5 62 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  HSC98155  Maianthemum stellatum F. B. Plett 1963-4-21 19 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC99389  Maianthemum stellatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 38 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  HSC44103  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1977-8-6 3686 Humboldt Along Rd. 2S08 near Alder Spring 1524 Comment
  HSC98706  Malacothrix floccifera Cara Witte 2007-7-24 572 Humboldt Ammon Ridge Road. 4 miles east of intersection with National Forest 1. 1462 Comment
  UC1223205  Malacothrix floccifera Joseph P. Tracy 1950-6-15 18784 Humboldt 7 mi n Harris (Jenk's Ranch) Comment
  HSC18693  Malus fusca J. W. Johnson 1962-4-18 1253 Humboldt Above S pasture, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC98506  Marah oregana Cara Witte 2008-8-6 1003 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  RSA80535  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head. Comment
  JEPS42491  Marah oregana W. L. Jepson and W. W. Mott 1903-6-23 2207 Humboldt White Thorn Comment
  UC175778  Marrubium vulgare Joseph P. Tracy 1912-7-27 3878 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC16107  Medicago lupulina Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5532 Humboldt near Scotia Comment
  RSA249711  Medicago polymorpha Robert F. Thorne 35258 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  UC1145134  Melica aristata Joseph P. Tracy 1949-7-19 18374 Humboldt Friday Camp Grouse Mountain (Grouse Mountain) 1219 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  UC34137  Melica californica Joseph Burtt Davy 1899-6-8 5343 Humboldt Bells Springs Comment
  HSC102229  Melica geyeri var. geyeri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1150 Humboldt Patterson Meadows 1566 Comment
  UCD87509  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  CAS-BOT-BC281025  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt W side at top of Salmon Summit 2103 Comment
  UC552689  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole; Trinity Summit 1828 Comment
  UCD88660  Melica subulata H. L. Person 1932-5-11 19413 Humboldt Arcata. 0 Comment
  HSC15015  Melilotus indicus W. F. Nickel 1965-5-16 Humboldt N Arcata in front of the College Cleaners Comment
  JEPS63289  Melissa officinalis W. L. Jepson 1936-8-6 17854 Humboldt Philipsville, S. Fork Eel R. S. Fork Eel R., Philipsville Comment
  RSA152465  Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt Field s Landing, 2 miles from town 6 Comment
  RSA246658  Mentha canadensis Robert F. Thorne 1965-9-19 35459 a Humboldt Freshwater Lagoon, south of Orick 3 Comment
  UC1239692  Mentha pulegium Joseph P. Tracy 1916-9-5 4772 Humboldt 4 mi above mouth of South Fork of Eel River; South Fork of Eel River 60 Comment
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  HSC70398  Micropus californicus var. californicus M. A. Baker 1980-6-7 1838 Humboldt Near Ammon Creek 732 Comment
  UC180181  Microseris borealis Joseph P. Tracy 1914-9-6 4611 Humboldt peat bog near Seidell Ranch (between High Prairie and Snow Camp); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC582439  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1223199  Microseris douglasii subsp. douglasii Joseph P. Tracy 1948-5-31 17988 Humboldt near w side summit of Spruce Grove (near Harris) 762 Comment
  UC1199451  Microseris laciniata subsp. laciniata Joseph P. Tracy 1933-7-26 12925 Humboldt s slope Grouse Mountain (towards low creek); North Coast Ranges, s slope Grouse Mountain 1219 Comment
  HSC17187  Microsteris gracilis Elrid H. Spinas 1948-5-15 26 Humboldt Along rd. to Gouse Mtn. Lookout, 1 mi. from Hwy. 299 Comment
  HSC99080  Microsteris gracilis C. Witte 2007-5-22 83 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  JEPS10486  Mimulus arvensis Joseph P. Tracy 1926-5-2 7435 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC89450  Mimulus aurantiacus var. aurantiacus P. A. Daly 1984-5-8 15 Humboldt Trinidad Head 61 Comment
  HSC40847  Mimulus breweri Thomas W. Nelson 1976-7-9 3003 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  RSA430202B  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC20741  Mimulus guttatus S. R. Johnson 1965-4-16 40 Humboldt 1 mi. N of Luffenholtz Beach Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC162580  Mimulus layneae Joseph P. Tracy 1911-7-8 3443 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  HSC20790  Mimulus pilosus David Adams 1960-8-20 Humboldt Eel River; Whitlow (Sequoia) 56 Comment
  HSC48863  Mimulus pulsiferae Brad Klipfel 1973-6-10 56 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS4667  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 Comment
  UC1196805  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC388623  Minuartia douglasii Doris K. Kildale 1926-5-9 1986 Humboldt Kneeland Prairie - summit 853 Comment
  HSC32136  Minuartia nuttallii subsp. gregaria D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5605 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC4087  Minuartia nuttallii subsp. gregaria D. E. Anderson 1965-6-1 3763 Humboldt Horse Mountain, W facing slope 1220 Comment
  HSC56219  Mitella caulescens G. L. Clifton, Griswold 1979-8-2 12242 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1198869  Mitella diversifolia Joseph P. Tracy 1949-7-19 18384 Humboldt Grouse Mountain 1524 Comment
  HSC55867  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10889 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC73710  Moehringia macrophylla M. A. Baker 1980-7-15 2979 Humboldt Near Whiting Ridge 301 Comment
  HSC45055  Moehringia macrophylla R. Sutherland 1978-4-22 2 .22478 Humboldt Ridge top along King's Crest Traiil 991 Comment
  HSC71820  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1980-6-27 5936 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  UC13619  Moehringia macrophylla Chesnut and Drew 1888-8-9 Humboldt head of Redwood Creek Comment
  HSC76524  Monardella odoratissima Teresa Prendusi 1981-7-21 273 Humboldt Near Whiteys Peak 1646 Comment
  CAS-BOT-BC215567  Monardella odoratissima subsp. pallida Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit Orleans Mt. 1828 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC36491  Monardella sheltonii Thomas W. Nelson, James Nelson 1975-9-3 2193 Humboldt Along N side of Ashfield Butte Comment
  OBI13608  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New rd towards Trinity Summit Comment
  CAS-BOT-BC220520  Monardella villosa Jos. Burtt Davy 1899-6-20 5697 Humboldt Hoopa Valley Comment
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  RSA264852  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  CHSC84555  Montia parvifolia John Dittes; Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer North Coast Range; ca. 2.9 air-mile northwest of Legget, ca. 5.2 air-mile southeast of Piercy, on eastern bank of South Fork Eel River. 182 Comment
  RSA0056335  Montia sibirica Jim Shevock 1971-5-29 1142 Humboldt Highway 299, Trinity Highway. 457 Comment
  UCD110276  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC58681  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-8-2 12276 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC73730  Muhlenbergia filiformis M. A. Baker 1980-7-22 3093 Humboldt Near Grogan Hole. 1676 Comment
  SEINET200835 Image available Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit 1829 Comment
  UC1222233  Myosotis discolor Joseph P. Tracy 1942-6-15 17116 Humboldt Englewood Prairie Comment
  UC1222234  Myosotis discolor Joseph P. Tracy 1942-5-16 17354 Humboldt 1 mi. n.e. Garberville (on rd. to Harris) 304 Comment
  UC582539  Myosotis discolor Joseph P. Tracy 1936-5-17 14809 Humboldt at crossing of Kneeland Rd. Lawrence Creek 457 Comment
  HSC104051  Myosotis latifolia E. R. Fyer 2015-4-29 32 Humboldt Arcata Community Forest 166 Comment
  SEINET12275689  Myosotis laxa J. P. Tracy 1942-1 17072 Humboldt Mad River near bridge on coast highway Comment
  HSC47657  Myosotis sylvatica Sheila Logan 1978-4-10 180 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  RSA239703  Myrica californica Larry E. DeBuhr 1973-4-23 988 b Humboldt Richardson Grove Redwood State Park. Comment
  UCSB24729  Myriophyllum sibiricum Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101; turnoff to Crannell Road; north of Eureka 6 Comment
  UC526764  Nassella pulchra Joseph P. Tracy 1926-5-2 7436 Humboldt grassy hillside near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC59207  Nasturtium officinale Terry Roth 1979-4-28 19 Humboldt Glendale exit off of Hwy. 299, gravel road towards Mad River 30 Comment
  UC1197901  Navarretia capillaris Joseph P. Tracy 1935-7-28 14314 1/2 Humboldt head Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  HSC75442  Navarretia divaricata J. O. Sawyer 1980-7-18 3599 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS70296  Navarretia divaricata Joseph P. Tracy 1930-7-23 9119 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  RSA528862  Navarretia sinistra R. Spellenberg 1990-7-10 10238 Humboldt Extreme E edge county, 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. Highway 299) on USFS 1 1433 Comment
  HSC39447  Navarretia squarrosa Linda M. Barker 1976-8-2 1668 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC1103584  Navarretia viscidula Joseph P. Tracy 1923-6-18 6287 Humboldt Petrolia Northern Coast Ranges, Mattole Valley 30 Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  HSC71171  Nemophila parviflora Thomas W. Nelson 1977-5-30 3416 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC76196  Nemophila parviflora Overton, Butler 1979-7-24 9799 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC57344  Noccaea fendleri subsp. glauca Walter Overton, Marvin Butler 1979-7-26 10027 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC8078  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1961-8-27 1759 Humboldt 8 mi. W of Redwood Creek Br. along Hwy. 299 Comment
  RSA0013606  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-14 9353 Humboldt Town of Blue Lake. 15 Comment
  HSC60379  Nuphar polysepala J. M. DiTomaso 1979-4-22 908 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  HSC20658  Nuttallanthus texanus R. T. Forester 1963-4-30 18 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC916667  Oenanthe pimpinelloides Joseph P. Tracy 1950-6-23 18874 Humboldt 3 mi n Blocksburg; Larrabee Creek 457 Comment
  UCD127734  Oenanthe pimpinelloides Joseph P. Tracy 1950-6-23 18874 Humboldt Larrabee Creek, 3 miles north of Blocksburg. 457 Comment
  UC1400342  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park 3 Comment
  UCD127738  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC36313  Oenanthe sarmentosa Gerald Fijii 1972-10-20 Humboldt Big Lagoon Bog Comment
  HSC49088  Oenothera elata subsp. hookeri Patricia Shesgreen 1978-8-12 134 Humboldt 1/2 mi. E of Samoa Cookhouse on Vance Ave., Samoa. Comment
  UC1196948  Oenothera glazioviana J. P. Tracy 1898-9-25 281 Humboldt along streets Eureka 0 Comment
  HSC92715  Oenothera villosa subsp. strigosa D. K. Imper 1985-7-15 Humboldt About 1 mi. S of Orleans on E side of Hwy. 96 43 Comment
  UC1196944  Oenothera wolfii Joseph P. Tracy 1927-7-24 8302 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  HSC5070  Oreostemma alpigenum var. andersonii J. P. Tracy 1919-9-22 5278 Humboldt Trinity Summit 1890 Comment
  UC1197447  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  BLMAR257  Orobanche pinorum Jennifer Anthony-Wheeler 1997-7-10 257 Humboldt King range, UNCOMMON, parasitized ocean spray, growing on rocky, open forest slope 304 Comment
  UC1245410  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 814 Humboldt Head of Devil's Hole, Trinity Summit. Comment
  UC1326243  Orthilia secunda Milo S. Baker 1947-8-10 11898 Humboldt 15 mile NE of Hoopa at end of Forest Road in fir Forest 1371 Comment
  POM296047  Orthocarpus erianthus var. gratiosus S. K. Harris 1942-6-10 1474 Humboldt Bear River Ridge. 457 Comment
  RSA97541  Orthocarpus erianthus var. gratiosus L. S. Rose 1954-4-25 54014 Humboldt Samoa. Region of type locality. Comment
  HSC56040  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11605 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA407950  Orthocarpus purpurascens J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  JEPS14255  Osmorhiza berteroi Joseph P. Tracy 1932-7-12 10450 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CDA38481  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-1 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  HSC56091  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11784 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC16722  Oxalis articulata subsp. rubra N. D. Dennis 1965-4-4 6 Humboldt Corner of F and 9th street, in Eureka Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  CHSC23900  Oxalis oregana D. G. Houston 1966-3-5 7 Humboldt Six miles up Fickle Hill Rd. 609 Comment
  UC17222  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD110986  Oxalis oregana K. Twitchell 1996-5-11 24 Humboldt Crannell, coastal cliffs along old Highway 101 at Moonstone beach access. 36 Comment
  HSC59664  Oxalis oregana George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  UCSB18740  Oxalis oregana Jensen, Karen 1965-4-15 Humboldt 0.2 miles W of U.S. Highway 101, at Miranda turnoff 91 Comment
  JEPS109970  Oxalis trilliifolia D. W. Taylor 2004-6-24 19139 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles W of the junction with Forest Road 5N01. Comment
  UC129573  Packera bolanderi var. bolanderi Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5453 Humboldt near Elk Prairie Comment
  RSA152617  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley 305 Comment
  UC196969  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4644 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC24218  Panicum capillare D. E. Anderson 1962-8-17 2289 Humboldt Dunes at Big Lagoon Co. Park. Comment
  UC535745  Panicum capillare Eleanor Armstrong 1147 Humboldt Richardson Grove Comment
  UC1103407  Parapholis incurva Joseph P. Tracy 1937-6-5 15328 Humboldt mouth of Little River 3 Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  CDA15537  Parentucellia viscosa G. F. Hrusa 1998-7-5 14705 Humboldt Klamath Ranges; Hwy 299, N side at summit of pass W of Willow Creek. Comment
  RSA286349  Parentucellia viscosa Robert F. Thorne 1974-7-29 45075 Humboldt Samoa Dunes. Comment
  UC1103769  Paspalum dilatatum Fred M. Kay 1929-10-1 Humboldt near Blocksburg 457 Comment
  HSC39934  Paxistima myrsinites J. O. Sawyer 1970-6-25 2291 Humboldt 1646 Comment
  UC1222451  Pedicularis densiflora Joseph P. Tracy 1931-4-26 9340 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UCD137559  Pellaea andromedifolia Lincoln Constance 1934-6-4 813 Humboldt Bull Creek Region, South Fork Eel River. Comment
  CHSC33041  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt The Lassics. Growing along east side of Red Lassic; beside rd. 1S07. 1676 Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  RSA425609  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  HSC56129  Penstemon deustus G. L. Clifton, Terry Griswold 1979-8-1 11938 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC100913  Penstemon jaffrayanus Carl C. Marshall Jun 1886 275 Humboldt Trail E of Hoopa. Comment
  HSC49982  Penstemon laetus subsp. sagittatus M. A. Baker 1979-6-7 782 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC56200  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 12170 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC28928  Pentagramma triangularis Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  HSC63229  Pentagramma triangularis M. A. Baker 1979-5-6 470 Humboldt Weitchpec. Comment
  SD112992  Perideridia howellii Darley F. Howe 1961-8-2 3125 Humboldt 24 miles east of Orick on Bald Mt. road. 915 Comment
  HSC98551  Perideridia howellii Cara Witte 2007-8-1 613 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC32529  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1133 Humboldt McKeown Ranch N of Dinsmore 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
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  SEINET13978219 Image available Petasites frigidus var. palmatus R. R. Halse 2016-1 9684 Humboldt Along US Hwy 101 ca. 9.6 mi S of Orick. 8 Comment
  UC673184  Phacelia bolanderi Lincoln Constance and Reed C. Rollins 1942-5-12 2892 Humboldt 2 mi n Orleans; Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  UC1199105  Phacelia egena Joseph P. Tracy 1938-5-1 15735 Humboldt Willow Creek Trinity River Valley (stony flat along river) 152 Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  RSA21078  Phacelia mutabilis Carl B. Wolf 1937-8-13 9238 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1051817  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 272 Humboldt near railroad station; Alton Comment
  HSC102194  Phacelia procera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1108 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC102566  Phacelia procera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1553 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC58024  Phacelia procera G. L. Clifton 1979-7-31 11831 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC258826  Phalaris angusta W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  UCD88168  Phalaris aquatica J. W. Logan 1926-6-2 5 Humboldt Ferndale. Rusk Ranch. 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
  UCD88769  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt At Englewood, near Redcrest. Comment
  CAS-BOT-BC76564  Philadelphus lewisii Doris K. Kildale 1928-6-9 5057 Humboldt Chalk Mountain Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  JEPS49622  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC1035063  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt summit of US Hwy 299 betw. Willow Creek and Blue Lake Comment
  UC154110  Philadelphus lewisii Joseph P. Tracy 1908-6 2886 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  RSA0046936  Philadelphus lewisii Lyman Benson 1928-7-10 397 Humboldt Hills by Humboldt Bay, Fortuna. Mouth of Eel River. 30 Comment
  CAS-BOT-BC250884  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  CAS-BOT-BC250882  Phleum pratense Doris K. Kildale 1925-8-21 1309 Humboldt Head of Yager Creek 914 Comment
  UC60870  Phlox adsurgens Mrs. M. H. Manning Humboldt Bair's Hill Hoopa Valley 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
  SEINET10496960  Phlox diffusa subsp. diffusa Botany 1985-5-10 BOTANY s.n. Humboldt T6n,r4e,sec.28,h.m.; Horse mountain road, ca 8 miles s of hwy 299, on open Slope with ceanothus ssp and quercus ssp. Flowers pale blue 1143 Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  HSC90650  Phyllospadix scouleri L. Watson, J. Meninga Sep 1991 43 Humboldt Arcata, Mad River Slough and dunes Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  SBBG24465  Picea sitchensis J. W. Howe -Mar-1938 Humboldt [label without specific locality] Comment
  UC1585368  Picea sitchensis R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 53 Humboldt 0.5 km s Hwy 255 (on New Navy base Rd, w of Eureka); North Split of Samoa Peninsula Comment
  UCD134684  Picea sitchensis Jo Ann Olson; Gary R. Robbins 1969-4-26 35 Humboldt North plateau above Fern Canyon, Prairie Creek Redwoods State Park. 60 Comment
  RSA0116907  Picea sitchensis Lyman Benson 1949-9-4 14188 Humboldt Bishop Pine Lodge, 5 miles North of Trinidad. Mt. Range: North Coast Ranges. 15 Comment
  CAS-BOT-BC73289  Pinus contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  CAS-BOT-BC78376  Pinus contorta H. E. Parks; S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove, Trinidad 60 Comment
  CAS-BOT-BC73200  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC54535  Pinus jeffreyi Overton, Butler 1979-7-23 9485 Humboldt Near Horse Mtn. Creek 1326 Comment
  RSA275331  Pinus monticola Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, flats along Gerogia Pacific s A-line. 122 Comment
  POM21740  Pinus sabiniana M. H. Manning 1902-05 340 Humboldt Hupa. Comment
  JEPS64433  Piperia elegans W. L. Jepson 1921-8-11 9415 Humboldt Big Lagoon Comment
  RSA273410  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt Ca. 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  UC1196429  Piperia transversa Joseph P. Tracy 1936-8-8 15119 Humboldt head of Hors-Linto Creek Trinity Summit 1463 Comment
  HSC99639  Pityopus californicus T. Jimerson, J. Pageau 1979-7-31 698 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  UC1197759  Pityopus californicus Joseph P. Tracy 1936-6-10 14915 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  JEPS61017  Plagiobothrys Joseph P. Tracy 1942-5-16 17355 Humboldt Garberville; 1 mi ne of town 152 Comment
  UC582610  Plagiobothrys bracteatus Joseph P. Tracy 1936-6-3 14842 Humboldt opposite mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC249518  Plagiobothrys nothofulvus Joseph P. Tracy 1922-4-30 6019 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  UC526825  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1932-6-26 10274 Humboldt Fort Baker Ranch North Coast Ranges, Fort Baker Ranch 762 Comment
  SEINET12275868  Plagiobothrys scouleri J. P. Tracy 1949-1 18322 Humboldt Cameron Hill on Kneeland Road Comment
  HSC100408  Plagiobothrys tenellus Carl C. Marshall Apr 1887 372 Humboldt Hoopa Valley. Comment
  UC1196141  Plantago erecta Joseph P. Tracy 1921-4-24 5471 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC28010  Plantago lanceolata J. Burtt Davy 1899-6-16 5553 Humboldt near Scotia; North Coast Ranges Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  RSA15562  Plantago maritima Carl B. Wolf 1927-8-29 1210 Humboldt Devils' Gate, S of Cape Mendocino Comment
  POM312378  Plantago subnuda Malcolm A. Nobs, S. Galen Smith 1949-8-3 1188 Humboldt Southern outskirts of Eureka Comment
  CAS-BOT-BC91645  Platystemon californicus Bolimannsou 1907-5-15 s.n. Humboldt Samoa. Comment
  UC168964  Plectritis brachystemon Joseph P. Tracy 1909-7-31 3034 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC49518  Plectritis macrocera R. York 1979-4-16 232 Humboldt E of Samoa drag strip. Comment
  SEINET200957 Image available Pleuropogon refractus J. P. Tracy 1932-7-14 10539 Humboldt Corral Prairie 1524 Comment
  SEINET179617  Pneumonanthe sceptrum H. E. Parks 1931-7-1 01052 Humboldt Bishop Pine Lodge,Trinidad, 76 Comment
  HSC10626  Poa annua William J. Ferlatte 1963-5-8 39 Humboldt Near 11th and B Sts., Arcata. Comment
  UC525626  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt head of Brett Hole Trinity Summit; Klamath Mts 1828 Comment
  CAS-BOT-BC255029  Poa compressa Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  UC1103191  Poa confinis Joseph P. Tracy 1936-5-30 14836 Humboldt near Samoa (Humboldt Bay) 6 Comment
  UC34064  Poa douglasii J. P. Tracy 1900-7-4 886 Humboldt Ocean Beach at Samoa (opposite Eureka) Comment
  HSC10723  Poa kelloggii J. P. Tracy 1926-4-25 7415 Humboldt Grizzly Creek on Van Duzen River. Comment
  POM296665A  Poa macrantha Lyman Benson 1929-7-19 1819 Humboldt Clam Beach, Trinidad Comment
  HSC10789  Poa secunda subsp. secunda J. P. Tracy 1927-6-12 8143 Humboldt Horse Mtn. 1524 Comment
  HSC70237  Poa secunda subsp. secunda M. A. Baker 1980-6-8 1901 Humboldt Near Buck Flat. 1554 Comment
  HSC99123  Poa secunda subsp. secunda Cara Witte 2007-6-4 189 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC180501  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4121 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC525618  Poa trivialis Joseph P. Tracy 1926-6-12 7590 Humboldt near Orick (at Davison's Ranch on Prairie Creek); North Coast Ranges 60 Comment
  HSC102948  Poa trivialis J. P. Smith Jun 2009 12601 Humboldt Arcata. Lawn weed Comment
  BLMAR18  Poa unilateralis Brad Barr June, 1982 18 Humboldt King range, Barksdale Table Comment
  HSC10680  Poa unilateralis C. S. Chavez 1965-4-22 48 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  UC1988935  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta 5 miles east of town, open flat by old Strong's District School House 45 Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  JEPS43010  Polygala californica Lincoln Constance 1934-5-23 608 Humboldt se slope of mountain above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  HSC54507  Polygala cornuta Overton, Butler 1979-7-23 9408 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC98083  Polygala cornuta var. cornuta Cara Witte 2007-7-10 475 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  UC672977  Polygonum amphibium Joseph P. Tracy 1927-5-14 8026 Humboldt Patterson Ranch Trinity River Valley, Willow Creek (in pond) 152 Comment
  HSC17465  Polygonum aviculare Lincoln Constance 1934-6-12 860 Humboldt N bank of S Fork Eel River, Bull Creek Rd. Comment
  SEINET3405167 Image available Polygonum californicum Joseph P. Tracy 1929-8-18 8654 Humboldt Along Van Duzen River, Opposite Buck Mountain Comment
  UC132198  Polygonum convolvulus Joseph P. Tracy 1907-8-20 2600 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1225796  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt on Box Camp Trail Trinity Summit 1676 Comment
  UC672963  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 A Humboldt Grouse Mountain 1524 Comment
  UC146189  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1908-6 2921 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC55509  Polygonum douglasii subsp. spergulariiforme Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  UC672951  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC421006  Polygonum spergulariiforme Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1219 Comment
  HSC1129  Polypodium californicum W. R. Supernaugh, Jr. 1964-12-11 13 Humboldt 200 yards S of Trinidad harbor Comment
  CAS-BOT-BC76870  Polypodium glycyrrhiza Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia 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
  SEINET192538 Image available Polypodium glycyrrhiza George Neville Jones 1936-3-22 Humboldt along the south fork of the Eel R. near Garberville Comment
  CAS-BOT-BC76845  Polypodium glycyrrhiza Doris K. Kildale 1926-12-19 2876 Humboldt Briceland Bridge 1/2 mi. west of Garberville. Comment
  HSC39970  Polypodium glycyrrhiza Kurt Hippen, Tom Duebendorfer Humboldt Off Dowes Prairie Rd. 0.25 mi. up Strawberry Cr. Comment
  HSC75433  Polypodium hesperium J. O. Sawyer, M. A. Erickson 1979-7-15 3412 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  CAS-BOT-BC72085  Polypodium scouleri W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  RSA689963  Polypodium scouleri May N. Ackley 1936-8-15 375 Humboldt Patrick s Point Comment
  RSA689964  Polypodium scouleri Charlotte M. Hoak 1936-8-15 374 Humboldt Patricks Point Comment
  UC906750  Polypodium scouleri Joseph P. Tracy 1947-5-24 17689 Humboldt Big Lagoon Comment
  UC1145080  Polypogon interruptus Joseph P. Tracy 1938-8-28 16137 Humboldt Trinidad; Coast bluffs, Trinidad 6 Comment
  UCD91207  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt Along Van Duzen River, Opposite Buck Mountain. Dinsmore's. 762 Comment
  RSA54138  Polypogon monspeliensis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  UC1440058  Polystichum californicum Danin & H. G. Baker 1960-8-13 597 Humboldt ca. 2 mi n Dyerville (High Rock, along Ave. of Giants, w side Eel River) Comment
  HSC76298  Polystichum munitum Alerie Gizinski 1981-8-31 341 Humboldt Near Whiting Spring 1231 Comment
  UC249538  Populus trichocarpa Joseph P. Tracy 1922-10-8 6121 Humboldt Mad River at Blue Lake (Northern Coast Ranges); , Mad River at Blue Lake 30 Comment
  UC1116225  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS395  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13588 Humboldt South Fork of Eel River (midway between Miranda and Garberville) 91 Comment
  RSA84982  Potamogeton natans F. W. Peirson 1923-7-11 3640 Humboldt 20 miles north of Eureka. Comment
  JEPS42952  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  CAS-BOT-BC454067  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  UC1586954  Potentilla drummondii Juha Pykala and D. H. Norris 1987-6-11 1593 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  CAS-BOT-BC142024  Potentilla drummondii Joseph P. Tracy 1932-7-10 10391 Humboldt Wet meadow at Corral Prairie - Trinity Summit 1524 Comment
  HSC44757  Potentilla gracilis Maralyn O'Meara 1972-6-8 82 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC30037  Potentilla gracilis var. gracilis Chesnut and Drew 1888-8-6 Humboldt Redwood Creek Comment
  UC418977  Potentilla gracilis var. gracilis H. E. Parks June, 1924 Humboldt Kneeland; Bald Hills, Kneeland Comment
  SBBG979  Prosartes hookeri H. and M. Dearing 1933-5-16 253 Humboldt Weott Comment
  CAS-BOT-BC517509  Prosartes smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC22524  Prunella vulgaris David K. Smith 1968-11-20 83 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  HSC72624  Prunella vulgaris subsp. lanceolata J. P. Smith 1977-7-3 9229 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC162689  Prunella vulgaris var. lanceolata Joseph P. Tracy 1911-7-7 3380 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Cr with Trinity River 914 Comment
  HSC40670  Prunus emarginata Thomas W. Nelson, Jane P. Nelson 1976-7-1 2931 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  RSA46689  Prunus emarginata Doris K. Kildale 1938-6-5 15387 Humboldt Horse Mountain Comment
  HSC97633  Prunus virginiana var. demissa Cara Witte 2007-6-12 247 Humboldt Cold Spring. 1410 Comment
  UC127827  Pseudognaphalium californicum Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5890 Humboldt Francis Ridge Comment
  UC165845  Pseudognaphalium californicum Joseph P. Tracy 1908-7-1 2911 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers) 914 Comment
  CAS-BOT-BC80109  Pseudotsuga menziesii Doris K. Kildale 1927-4-17 3092 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC54576  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9612 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC63998  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-3-1 Humboldt Comment
  HSC18481  Pteridium aquilinum var. pubescens Jana Kattenhorn 1970-10-24 108 Humboldt H.S.C. Campus, Arcata Comment
  HSC55135  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-1 11978 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  SEINET3874358 Image available Pteridium aquilinum var. pubescens J. D. Ackerman 1975-9-15 744 Humboldt Above HSU, Arcata.; 0 Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  SEINET200759  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  SBBG5361  Pyrola aphylla H. and M. Dearing 1939-6-28 3731 Humboldt near Dinsmore Comment
  UCR45348  Pyrola aphylla Barry Silver 1986-5-3 567 Humboldt North Coast Ranges, Forest Road 7N02 to Waterman Ridge, 7 mi from Willow Creek 976 Comment
  CAS-BOT-BC462868  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC41260  Pyrola dentata Brad Klipfel 1974-7-23 452 Humboldt Horse Mtn., N of the towers Comment
  HSC102185  Pyrola picta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1099 Humboldt Patterson Meadows 1566 Comment
  UC535750  Pyrola picta Eleanor Armstrong 1934-8-23 1160 Humboldt Richardson Grove 121 Comment
  UC314639  Pyrola picta Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road west from Hoopa Valley 914 Comment
  UC32670  Pyrola picta Chesnut and Drew 1888-7-12 Humboldt Jarnigan's Comment
  HSC54593  Quercus chrysolepis Overton, Butler 1979-7-24 9661 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70845  Quercus chrysolepis M. A. Baker 1980-6-7 1828 Humboldt Near Ammon Creek 732 Comment
  JEPS38040  Quercus chrysolepis Lincoln Constance 1934-6-15 885 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region 975 Comment
  UCD40471  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -12 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  SEINET10970825  Quercus chrysolepis Jones 1985-6-6 Jones 112 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, querus Chrysolepis, quercus vaccinifolia habitat 1143 Comment
  HSC8234  Quercus garryana Francis Winter 1960-5-7 Humboldt On Bair Rd. 4 mi W of Hoopa Indian Reserve 610 Comment
  HSC97282  Quercus garryana M. Mesler 2007-6-25 766 Humboldt Trail to Mill Creek Lakes 1585 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC62727  Quercus garryana var. breweri Doris K. Kildale 1926-9-5 2631 Humboldt Head of Red Lassecks huk. Lasseck's Peaks 1676 Comment
  CAS-BOT-BC62785  Quercus garryana var. breweri Mrs. G. Earle Kelly 1924-6-1 s.n. Humboldt Kneeland Prairie Comment
  UCD46102  Quercus garryana var. garryana Joseph P. Tracy 1935-10-6 14753 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC105171  Quercus kelloggii Carl D. Duncan 1920-9-27 s.n. Humboldt Top of ridge forming western rim of Hoopa Valley Comment
  HSC68613  Quercus kelloggii Jacqueline Greenleaf 1980-7-16 248 Humboldt Near Buck Mountain. 1250 Comment
  RSA624390  Quercus kelloggii Louis C. Wheeler 1952-9-14 6931 Humboldt [No location information on label.] Comment
  UC213004  Quercus sadleriana Joseph P. Tracy 1919-9-19 5259 Humboldt Trinity Summit Northern Coast Ranges 1676 Comment
  CAS-BOT-BC104533  Quercus vacciniifolia R. Spellenberg 1990-7-10 10245 Humboldt Extreme E edge county, 8 mi WSW of Sayler at 6 mi S of Berry Summit (on Calif. Hwy. 299) on USFS 1 1371 Comment
  CAS-BOT-BC104536  Quercus vacciniifolia Doris K. Kildale 1925-8-18 1220 Humboldt Trinity Summit 1828 Comment
  SFV17761  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine. 1463 Comment
  SEINET3825263 Image available Quercus wislizeni Joseph P. Tracy 1914-5-14 4458 Humboldt Fort Seward Comment
  UC1193234  Quercus wislizeni R. H. Neuns 1950-7-31 123 Humboldt e side Tuttle Butte; Mail Ridge 914 Comment
  UC275513  Quercus wislizeni Joseph P. Tracy 1923-10-14 6576 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  HSC18144  Ranunculus californicus var. californicus T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  UC1103010  Ranunculus flammula Joseph P. Tracy 1930-8-3 9149 Humboldt pond near Little Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  POM269622  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie Comment
  UCD96220  Ranunculus muricatus Linda M. Barker 1976-4-30 1404 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC68716  Ranunculus orthorhynchus Jacqueline Greenleaf 1980-5-23 89 Humboldt Near Dinsmores 735 Comment
  UC1116204  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18026 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC1191438  Ranunculus repens Malcolm A. Nobs and S. Galen Smith 1949-8-3 1184 Humboldt Eureka; marsh and bog land at southern outskirts Comment
  UC1196265  Ranunculus repens Joseph P. Tracy 1933-7-20 12803 Humboldt Arcata Bottom North Coast Ranges 15 Comment
  HSC95591  Ranunculus repens Andrea Pickart 2002-3-31 24 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  RSA85302  Ranunculus repens F. W. Peirson 1926-7-12 12 Humboldt Orick Comment
  UC598568  Rhamnus W. K. Fisher 1899-5-24 3 Humboldt Humboldt Bay Comment
  UC1222628  Rhamnus californica Joseph P. Tracy 1950-6-18 18848 Humboldt near Petrolia (hills between town and ocean) Comment
  UC668156  Rhamnus californica Joseph P. Tracy 1933-9-3 13062 Humboldt Willow Creek Trinity River Valley 152 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
  JEPS42055  Rhamnus purshiana Lincoln Constance 1934-6-19 917 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  RSA134710  Rhamnus purshiana Peter H. Raven 1958-7-21 13655 Humboldt 7.2 miles NW of Capetown on road to Ferndale. Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
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Mar 1 2013
  HSC23118  Rhododendron columbianum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC27016  Rhododendron columbianum Brad Klipfel 1973-8-9 268 Humboldt Big Lagoon County Park Comment
  CAS-BOT-BC56609  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  SEINET11996978  Rhododendron macrophyllum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -297 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  POM89847  Rhododendron occidentale Chesnut 1880-8-10 s.n. Humboldt Arcata. Comment
  UC1197791  Rhododendron occidentale Joseph P. Tracy 1914-9-6 4615 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Region, Bald Mountain 1219 Comment
  UC604662  Rhododendron occidentale Joseph P. Tracy 1938-7-5 16014 Humboldt 4 mi s of Eureka (Spruce Point at junction of Humboldt Hill road with highway); Spruce Point 9 Comment
  HSC7892  Rhododendron occidentale var. paludosum Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  HSC96473  Rhododendron occidentale var. paludosum Gordon Leppig 1997-6-19 456 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA171949  Rhododendron occidentale var. paludosum R. F. Thorne 1957-9-3 19025 Humboldt Patrick's Point State Park. Comment
  RSA69331  Rhododendron occidentale var. paludosum F. W. Peirson 1923-7-11 3801 Humboldt 7 miles N of Arcata. Comment
  CAS-BOT-BC433141  Ribes W. R. Dudley 1899-1-1 s.n. Humboldt Possibly South of Arcata Comment
  POM184793  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt Trinity Summit. 1524 Comment
  RSA273318  Ribes bracteosum M. A. Baker 1977-4-23 174 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  CAS-BOT-BC108910  Ribes divaricatum var. pubiflorum Doris K. Kildale 1927-6-28 3607 Humboldt Lower Mad River near Covered Bridge on Redwood Highway. Comment
  CAS-BOT-BC173362  Ribes lobbii Doris K. Kildale 1926-9-5 2643 Humboldt Summit of Signal Peak, Lasseck's Peaks 1791 Comment
  HSC39684  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2737 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  UC492202  Ribes lobbii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8907 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC212479  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie, Trinity Summit, Klamath Mountains 1828 Comment
  HSC20325  Ribes roezlii J. Sandborg, F. Sandborg 1968-7-19 56 Humboldt Bluff Creek near Notice Creek 793 Comment
  UC1198945  Ribes roezlii Joseph P. Tracy 1932-3-19 9788 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC198900  Ribes roezlii var. cruentum L. R. Abrams 1918-6-16 7198 Humboldt Willows Creek Comment
  UCD102482  Ribes roezlii var. cruentum Roman Gankin 1965-8-5 544 Humboldt Horse Mountain Road, 5.2 miles north of junction with Shelter Cove Road. Comment
  UCR10838  Ribes roezlii var. cruentum Sue De Groot 1962-6-14 113 Humboldt North Coast Range, hillside west of Richardson Grove, Eel River drainage to Pacific 122 Comment
  CAS-BOT-BC211980  Ribes sanguineum J. H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak, east of town of Orleans, Six Rivers National Forest 1371 Comment
  CAS-BOT-BC212523  Ribes sanguineum L. R. Abrams; R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon Comment
  UC1280968  Ribes sanguineum H. E. McMinn 1934-6-22 3713 Humboldt n Eureka; Sea Cliff Comment
  UC902090  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-2-22 17951 Humboldt Table Bluff 91 Comment
  HSC71157  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  CAS-BOT-BC173988  Ribes viscosissimum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC103129  Ribes viscosissimum M. Mesler 2009-7-31 813 Humboldt South Fork Mtn. FS 1, 9.7 north of intersection with 4N12 1738 Comment
  HSC48397  Ribes viscosissimum Brad Klipfel 1973-6-10 104 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75413  Ribes viscosissimum J. O. Sawyer, M. A. Ericksen 1980-7-18 3648 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC97475  Ribes viscosissimum Cara Witte 2007-5-23 110 Humboldt Forest Service Road 4N70 to Grouse Mountain Lookout. 1601 Comment
  JEPS79969 Image available Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  UC552249  Romanzoffia californica Joseph P. Tracy 1928-4-29 8424 Humboldt Prairie Creek North Coast Ranges, Prairie Creek 60 Comment
  UC1199220  Rorippa curvisiliqua Joseph P. Tracy 1933-8-30 13054 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC552283  Rorippa curvisiliqua Joseph P. Tracy 1933-7-25 12857 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS53810  Rorippa nasturtium-aquaticum Lincoln Constance 1934-5-29 735 Humboldt Upper Look Prairie , South Fork Eel River, Upper Look Prairie (Bull Creek Region) 365 Comment
  CAS-BOT-BC146481  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-22 4715 Humboldt Near Harris Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC99509  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 171 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
  HSC100635  Rosa gymnocarpa Carl C. Marshall Jun 1885 70 Humboldt High hills and mtns. Comment
  UC14149  Rosa nutkana var. nutkana E. Ethel Tracy 1901-9-5 1278 Humboldt Eureka Comment
  UC667044  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-21 14993 Humboldt Iaqua 609 Comment
  CAS-BOT-BC148347  Rosa pisocarpa Doris K. Kildale 1928-6-24 5238 Humboldt Redwood Creek at Berry's 289 Comment
  UC902158  Rosa pisocarpa Joseph P. Tracy 1947-7-4 17813 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC99308  Rosa rubiginosa C. B. Wolf 1927-8-30 1251 Humboldt 3 mi. S of Thorn along old coast road Comment
  HSC19652  Rubus macropetalus P. Markle 1962-5-22 60 Humboldt Along cross country track behind HSU in Arcata Community Forest Comment
  CAS-BOT-BC147241  Rubus parviflorus E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade S.E. of Orick Comment
  CAS-BOT-BC147246  Rubus parviflorus Doris K. Kildale 1928-6-15 5231 Humboldt Iaqua Comment
  HSC57011  Rubus parviflorus Overton, Butler 1979-7-24 9604 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  UC492166  Rubus parviflorus Joseph P. Tracy 1932-7-15 10576 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  SEINET5265376  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  CAS-BOT-BC147360  Rubus pensilvanicus Henry M. Pollard 1948-8-9 s.n. Humboldt Near Orleans Comment
  SEINET10542893  Rubus procerus Charlene A. Bennett 1976-8-6 Bennett 485 Humboldt By hwy 101, n side of orick. Rocky area, densely forested by river. Flowers Pink 30 Comment
  CAS-BOT-BC156729  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  SEINET11910601  Rubus spectabilis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -178 Humboldt ca 8 mi N of Trinidad on US 101 near Patricks Point State Park 6 Comment
  BLMAR182  Rubus ursinus Donald Hazlett 1994-6-7 182 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC39999  Rubus ursinus J. O. Sawyer 1970-6-27 2306 Humboldt Site 318. 1494 Comment
  HSC74629  Rubus ursinus M. A. Baker 1980-5-17 1236 Humboldt Near Le Perron Peak 1066 Comment
  UC154255  Rubus ursinus J. P. Tracy 1904-7-31 2133 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC719828  Rubus ursinus Rogers McVaugh 1941-8-3 6220 Humboldt ca 1 1/4 mi s H.Q. Patrick's Point State Park; s of H.Q. Patrick's Point State Park Comment
  UC902164  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt 2 mi s Field's Landing; s of Field's Landing 6 Comment
  UCD17612  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 053 Humboldt California. Humboldt County: 6 miles from Dyerville junction of U.S. 101, on road to Weitchpec. Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC56171  Rumex acetosella G. L. Clifton, Griswold 1979-8-1 12064 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UCD81680  Rumex acetosella Chuck Hughes 2009-6-18 100 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  CAS-BOT-BC421936  Rumex acetosella Doris K. Kildale 1925-8-17 1239 Humboldt Trinity Summit - near Waterdog Lake. 1828 Comment
  HSC17565  Rumex acetosella J. W. Johnson 1962-4-8 1223 Humboldt Arcata, Mad River Co. Park Comment
  HSC17576  Rumex acetosella W. F. Nickel 1965-4-22 Humboldt HSC campus behind biological science building Comment
  HSC36232  Rumex acetosella John Rehling 1975-5-7 62 Humboldt Along Alliance Rd. Comment
  RSA239769  Rumex acetosella Larry E. DeBuhr 1973-4-23 997 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC421750  Rumex conglomeratus Carl B. Wolf 1927-8-30 1231 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  UCD100941  Rumex fueginus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon. Humboldt Coast. Comment
  CAS-BOT-BC109294  Rumex paucifolius R. K. Gierisch; D. H. Esplin 1969-7-1 3538 Humboldt Six Rivers. Grouse Mountain. 1584 Comment
  UC672922  Rumex salicifolius var. salicifolius Joseph P. Tracy 1932-7-11 10405 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA168912  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt Jenks Ranch. Mail Ridge, north of Harris 7 miles. Comment
  UC1222605  Rupertia physodes Joseph P. Tracy 1951-7-26 19589 Humboldt extreme head Redwood Creek (n side of mountain); Board Camp Mountain 1541 Comment
  UC169305  Rupertia physodes Joseph P. Tracy 1912-7-31 3949 Humboldt open woods near summit of Buck Mountain; Northern Coast Ranges Comment
  UC672875  Ruppia cirrhosa H. E. Parks and Joseph P. Tracy 1928-9-8 8505 Humboldt Big Lagoon 3 Comment
  HSC59504  Ruppia maritima M. A. Erickson 1979-5-23 305 Humboldt Arcata, creek adjacent to an abandoned logging pond at the S end of H St., Arcata Comment
  SEINET10501996  Ruppia maritima Mary Susan Taylor 1982-10-24 Taylor 5179 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC1100022  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1182 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  SEINET10966379  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 Tracy 17267 Humboldt Hungry Hollow. on Bald Mountain 610 Comment
  UC161047  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-5-2 2181 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC26873  Salicornia depressa Clifton Raymond Chesbrough 1973-6-20 103 Humboldt .25 mi. N of Eureka slough along Hwy. 101 Comment
  HSC89899  Salicornia depressa Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  CDA15324  Salicornia perennis R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. 0 Comment
  UC490588  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC129884  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129885  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  JEPS14785  Salix exigua Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  CAS-BOT-BC104100  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104108  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01331 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  RSA0038361  Salix hindsiana var. leucodendroides Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River. 90 Comment
  CAS-BOT-BC107702  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107704  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107761  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107766  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CHSC9557  Salix hookeriana E. L. Smith 1971-4-6 927 Humboldt Manila, 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka. Comment
  CHSC9655  Salix hookeriana E. L. Smith 1971-8-18 1025 A Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC20072  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-12 1112 Humboldt Blue Slide, Van Duzen River Comment
  POM184870  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  RSA342502  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-9 35298 Humboldt Big Lagoon. 3 Comment
  UC1173586  Salix hookeriana Joseph P. Tracy 1936-8-17 15159 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1225775  Salix hookeriana Joseph P. Tracy 1948-4-4 17957 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC470423  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC470432  Salix hookeriana Joseph P. Tracy 1927-11-13 8393 Humboldt Little River Northern Coast Region, around Humboldt Bay (sand dunes at mouth) 6 Comment
  UC470443  Salix hookeriana Joseph P. Tracy 1931-9-19 9676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481262  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481351  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481395  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC490460  Salix hookeriana Joseph P. Tracy 1932-5-10 9949 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490474  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10342 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC490509  Salix hookeriana Joseph P. Tracy 1932-3-19 9787 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC492336  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1102 Humboldt Little River Lagoon Trinidad Comment
  UC512094  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1215 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC512110  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1205 Humboldt 4 1/2 mi s Trinidad (Little River Lagoon); Little River Lagoon Comment
  UC518899  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt around Eureka Comment
  UC519335  Salix hookeriana Joseph P. Tracy 1933-10-15 13093 Humboldt near Miranda (along S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  POM219559  Salix hookeriana var. tomentosa H. E. Parks 1931-3-26 905 Humboldt Alton on Van Duzen River. 15 Comment
  LA208728  Salix laevigata Mrs. H. P. Bracelin; 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers; S Fork of Eel River Comment
  UC1225918  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt meadow at Box Camp Box Camp; Trinity Summit 1463 Comment
  UC504056  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC125220  Salix lasiandra var. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  CAS-BOT-BC125228  Salix lasiandra var. lasiandra Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01206 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, elevation approximately sea level Comment
  HSC98697  Salix lasiandra var. lasiandra C. Witte 2008-10-18 1052 Humboldt Forest Service Road 4N32, 1/2 miles S of intersection with 5N04 1453 Comment
  CAS-BOT-BC107103  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  UC469425  Salix lasiolepis Joseph P. Tracy 1931-3-31 9328 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC471107  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC504024  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1255 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC506403  Salix lasiolepis Joseph P. Tracy 1932-6-4 10127 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC512000  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512039  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1323 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  LA208775  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1932-5-17 1324 Humboldt W slope of Berry's Mountain; on Trinity Hwy; E of Redwood Creek 761 Comment
  CAS-BOT-BC107408  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3145 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC125610  Salix melanopsis Doris K. Kildale 1927-5-13 3143 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  HSC20027  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  POM220143  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1196570  Salix melanopsis Joseph P. Tracy 1932-7-31 10292 Humboldt at mouth of Larrabee Creek Eel R.; Northern Coast Ranges, Eel R. 60 Comment
  UC1196639  Salix melanopsis Joseph P. Tracy 1932-8-27 10756 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC481306  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC511972  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit (2 mi. e. of Redwood Hwy. and above Blue Lake Rd.) Comment
  UC512019  Salix melanopsis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1339 Humboldt pond at Willow Creek (Graham Ranch) near junction with Trinity R.; Willow Creek 152 Comment
  UC519365  Salix melanopsis Joseph P. Tracy 1933-6-11 12550 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  CAS-BOT-BC129133  Salix scouleriana Harold E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  HSC96596  Salix scouleriana Gordon Leppig 2003-2-22 1814 Humboldt Eureka Slough, NE corner of log pond 3 Comment
  POM209563  Salix scouleriana H. E. Parks 1933-1-24 1353 Humboldt Spruce Grove (Parks Ranch). Trinidad. Comment
  POM209564  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Grove (Parks Ranch). Trinidad. Comment
  POM219695  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge. Van Duzen River. 450 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
  UC1196701  Salix scouleriana J. P. Tracy 1900-12-22 974 Humboldt immediate vicinity Eureka 0 Comment
  UC1196710  Salix scouleriana Joseph P. Tracy 1936-2-2 14768 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC506349  Salix scouleriana Joseph P. Tracy 1933-4-2 10958 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CAS-BOT-BC128961  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt Rocky exposed places, head of Brett Hole - Klamath Mountains 1828 Comment
  HSC43419  Salix sitchensis R. Sutherland 1978-2-18 6 .18278 Humboldt S side Mattole River 8 Comment
  HSC90747  Salix sitchensis Jean Hanson 1980-3-8 24 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96573  Salix sitchensis Gordon Leppig 2003-2-20 1808 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  UC1600860  Salix sitchensis Joseph P. Tracy 1933-10-8 13086 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC481377  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Van Duzen R. Orick; , Orick 6 Comment
Read comments
Jul 9 2011
  HSC3969  Sambucus racemosa var. racemosa E. W. Styskel 1963-4-2 13 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. Comment
  UCD137263  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt Camp Grant, near junction of South Fork and main Eel River. 60 Comment
  UCD137271  Sambucus racemosa var. racemosa David G. Forbes 1966-4-4 66- 432 Humboldt 1 miles north of Fresh Water Lagoon, U.S. Highway 101. 30 Comment
  UCD170574  Sambucus racemosa var. racemosa Gordon Leppig 1998-4-13 737 Humboldt Arcata, Anvick Rd. 12 Comment
  HSC21616  Sanicula arctopoides D. E. Anderson 1962-3-25 1950 Humboldt 1/4 mi. N of Fairhaven Comment
  UC1197103  Sanicula bipinnatifida Joseph P. Tracy 1923-4-1 6173 Humboldt near Blue Lake (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  HSC32851  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1973-5-28 943 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS272  Sanicula crassicaulis W. L. Jepson 1932-7-30 16457 Humboldt Bull Creek 91 Comment
  UC1197098  Sanicula crassicaulis J. P. Tracy 1900-6-25 865 Humboldt immediate vicinity of Eureka 0 Comment
  HSC21636  Sanicula crassicaulis D. E. Anderson 1962-5-1 2193 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  UC1197094  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1197085  Sanicula laciniata Joseph P. Tracy 1923-6-20 6343 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC154130  Sanicula laciniata J. P. Tracy 1903-5-23 1897 Humboldt at Alder Point Alder Point 243 Comment
  UCD128032  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  HSC48975  Sanicula tracyi Bruce Miner, Bob Easton 1979-5-29 Humboldt At east approach to State Route 36 bridge over Van Duzen River 747 Comment
  UC642316  Sanicula tuberosa Joseph P. Tracy 1933-6-13 12568 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  POM141795  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast. 122 Comment
  UC492226  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  JEPS945  Scandix pecten-veneris Joseph P. Tracy 1923-6-20 6342 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  RSA53822  Schoenoplectus tabernaemontani Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC110928  Scirpus microcarpus Robert F. Thorne; P. Everett 1965-8-9 35320 Humboldt Clam Beach County Park along highway in shallow water of ditch. 3 Comment
  SBBG88776  Scirpus microcarpus A. Keedy 1988-9-28 14 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  UC1103644  Scirpus microcarpus Joseph P. Tracy 1943-7-18 17440 Humboldt along shore Big Lagoon; along shore Big Lagoon 3 Comment
  UC50825  Scirpus pungens J. P. Tracy 1902-8-10 1765 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12815835  Scoliopus bigelovii John D. Freeman, Ruth Freeman 1967-1 583 Humboldt Just west of California Hwy. 36 and just north of Carlotta. 52 Comment
  CAS-BOT-BC517412  Scoliopus bigelovii Leo Shapovalov; C. Woodhull 1940-3-6 s.n. Humboldt Redwood Creek near Garberville in Humboldt Redwood State Park Comment
  CAS-BOT-BC517415  Scoliopus bigelovii Doris K. Kildale 1926-2-28 1520 Humboldt Kneeland Prairie Road at the watering trough 609 Comment
  JEPS120525  Scrophularia californica B. Castro and L. P. Janeway 2004-9-11 1476 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  HSC98722  Scutellaria antirrhinoides Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC175792  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-21 3760 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC577323  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  JEPS62913  Scutellaria antirrhinoides Lincoln Constance 1934-5-23 614 Humboldt upper end of Look Prairie (South Fork Eel River); Bull Creek Region, , Look Prairie 365 Comment
  UC1713599  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  UC604643  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  UC1488733  Sedum laxum Marc Baker 1980-7-15 2941 Humboldt near Whiting Ridge; Pilot Creek Quad., near Whiting Ridge 300 Comment
  CAS-BOT-BC64701  Sedum laxum subsp. heckneri Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC667085  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-7-25 12899 Humboldt Grouse Mountain 1524 Comment
Read comments
Aug 17 2011
  JEPS40925  Sedum spathulifolium Paul C. Hutchison 1962-7-13 2085 Humboldt mouth of Little River, Hwy 101, N end of bridge Trinidad Beach State Park Comment
  JEPS48059  Sedum spathulifolium Lincoln Constance 1934-6-1 767 Humboldt Bull Cr. Road between Dyerville Bridge and Bull Cr. flat grove (mouth Bull Cr.) (Mouth Bull Cr, South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  SEINET200600  Selaginella oregana J. P. Tracy 1928-4-29 8426 Humboldt Prairie Creek 153 Comment
  CAS-BOT-BC69735  Selaginella wallacei Donald L. Branscomb 1957-12-26 s.n. Humboldt Look Out Rock, Patrick's Point. Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook 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
  HSC102003  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 904 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC102519  Senecio triangularis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1506 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1199234  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 A Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC581750  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 Humboldt Grouse Mountain North Coast Ranges, Grouse Moutain 1524 Comment
  HSC6134  Senecio vulgaris Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  UCD135816  Senecio vulgaris Linda M. Barker 1976-3-22 1337 Humboldt 3 miles west of Arcata. Comment
  SEINET7881647 Image available Senecio vulgaris H. E. Parks, S. T. Parks 1934-1 24234 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC37393  Sequoia sempervirens Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 500 Humboldt Along Lost Man Creek. 38 Comment
  HSC92001  Sequoia sempervirens R. W. Becking 1994-8-7 Humboldt Above Korbel Comment
  HSC98210  Sequoia sempervirens Gordon Leppig 1999-7-9 1189 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  NY64456  Sequoia sempervirens W. L. C. Muenscher 1939-4-15 15056 Humboldt Blair Grove, near Dyersville Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  UC333628  Sequoia sempervirens unknown Sept. 1901 Humboldt Eureka Comment
  RSA43681  Sherardia arvensis H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  HSC40235  Sherardia arvensis J. P. Smith, J. O. Sawyer 1976-5-2 8618 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  RSA168963  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  SBBG4711  Sidalcea malachroides H. and M. Dearing 1939-5-24 3428 Humboldt Cape Mendocino 121 Comment
Read comments
Oct 29 2014
  UC18701  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  HSC35615  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2111 Humboldt Whiting Spring Comment
  HSC62693  Sidalcea malviflora Michelle Stevens 1979-5-25 139 Humboldt Junction of Hwy. 96 and the GO Rd. 640 Comment
  UC502955  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  POM264602  Sidalcea malviflora subsp. patula H. E. Parks 1940-05 24177 Humboldt Dow s Prairie 30 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
  HSC57901  Sidalcea oregana subsp. spicata Gilbert Muth 1979-7-31 11492 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC502940  Sidalcea oregana subsp. spicata Joseph P. Tracy 1932-7-10 10382 Humboldt Corral Prairie Klamath Mountains, , Corral Prairie (Trinity Summit) 1524 Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  JEPS50977  Silene californica W. L. Jepson 1902-7-1 1962 Humboldt Hupa Road , Hupa Road (Redwood Creek) Comment
  UC465673  Silene californica Mrs. M. H. Manning 1900-1 Humboldt Hoopa Valley Comment
  UC668101  Silene californica Joseph P. Tracy 1938-7-4 15989 Humboldt Valley of South Yager Creek 762 Comment
  HSC100416  Silene californica Carl C. Marshall Jun 1885 93 Humboldt Hills everywhere. Comment
  JEPS23252  Silene campanulata subsp. campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top at Hyampom Trail , Hyampom Trail (South Fork Mountain) 1676 Comment
  HSC74195  Silene campanulata subsp. glandulosa M. A. Baker 1980-7-23 3137 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98675  Silene campanulata subsp. glandulosa Cara Witte 2007-6-26 353 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  OBI22895  Silene gallica H. E. & S. T. Parks, S. T. Parks May1937 5938 Humboldt Trinidad, Spruce Cove 0 Comment
  JEPS23246  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  CAS-BOT-BC181246  Silene hookeri subsp. bolanderi Alice Eastwood; John Thomas Howell 1937-6-23 4799 Humboldt Little Van Duzen River Comment
  RSA29073  Silene hookeri subsp. bolanderi Lincoln Constance, A. A. Beetle 1940-5-17 2612 Humboldt Edge of Quercus Garryana grove, rocky knolls on N slope. McClellan Mtn, near Eureka 823 Comment
  HSC4174  Silene laciniata subsp. californica R. Spellenberg 1964-6-16 434 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  HSC44729  Silene laciniata subsp. californica Maralyn O'Meara 1972-6-8 78 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC13563  Silene menziesii Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Hy-Am-Pum (Hy-Am-Pom ?) Comment
  HSC67883  Silybum marianum J. P. Smith 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1198792  Sisymbrium altissimum Joseph P. Tracy 1937-5-31 15319 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS62111  Smilacina racemosa W. L. Jepson 1932-7-30 16449 Humboldt Bull Creek 121 Comment
  RSA246653  Solanum americanum Robert F. Thorne, Percy C. Everett 1965-8-5 35147 Humboldt Samoa Dunes. 3 Comment
  CDA41195  Solanum parishii J. Breton & A. Livingtston 2005-6-15 12 Humboldt Northeast of Grouse Mountain. Comment
  CHSC97982  Solanum parishii J. Breton; A. Livingston 2005-6-15 12 Humboldt NE of Grouse Mtn. UTM 0444876, 4511301. On rock outcrop. 1327 Comment
  RSA473662  Solidago canadensis subsp. elongata M. B. Dunkle 1936-8-18 4812 Humboldt Fortuna. Comment
  HSC48316  Solidago elongata Brad Klipfel 1973-8-3 306 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199323  Solidago elongata Joseph P. Tracy 1940-9-26 16735 Humboldt near Still Ranch (2 mi s of Fields Landing) 9 Comment
  RSA246920  Solidago spathulata R. F. Thorne, Percy C. Everett 1965-8-5 35164 Humboldt Samoa Dunes 3 Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  JEPS18742  Soliva sessilis Joseph P. Tracy 1936-7-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC12548  Sonchus oleraceus C. Kline 1970-11-15 77 Humboldt 4.2 mi. N of Trinidad, olf Hwy. 101 Comment
  HSC91903  Sonchus oleraceus E. Mackey 1986-11-2 Humboldt Patrick's Point State Park; by road to Palmer's Point Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  UC198647  Sparganium emersum var. emersum Joseph P. Tracy 1917-5-30 4808 Humboldt near mouth of Little River; Northern Coast Ranges 6 Comment
  UC249860  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka Northern Coast Ranges (salt marsh at railroad station) 0 Comment
  UCD92969  Spartina densiflora Keith B. Macdonald 1965-9-1 s.n. Humboldt Arcata, along Humboldt Bay. Comment
  HSC59047  Spergula arvensis Thomas Wood 1979-4-4 93 Humboldt Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd. 0 Comment
  HSC37993  Spergularia rubra Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  CAS-BOT-BC390611  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA85248  Spiraea douglasii F. W. Peirson 1923-7-11 3752 Humboldt 7 miles N of Arcata. Comment
  UC14210  Spiraea douglasii J. Burtt Davy 1899-6-29 5897 Humboldt banks of Klamath River; North Coast Ranges Comment
  RSA286353  Spiranthes romanzoffiana Robert F. Thorne 1974-7-29 45085 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC1196398  Spiranthes romanzoffiana Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  UC1124934  Stachys ajugoides var. rigida H. L. Person 1932-7-16 T.H. 30 Humboldt highway n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  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
  JEPS62955  Stachys ajugoides var. rigida W. L. Jepson 1932-8-8 16481 Humboldt head Canoe Creek; Grasshopper Peak 1066 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
  HSC12371  Stachys chamissonis Steve Dorei 1970-10-14 99 Humboldt Big Lagoon Comment
  HSC81924  Stachys mexicana Thomas W. Nelson, Jane P. Nelson 1979-7-3 4955 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC61048  Stachys rigida Jimerson, J. Pageau 1979-8-10 747 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC49394  Stachys rigida R. York 1979-5-15 288 Humboldt Trail leading to College Cove 1 mi. N of Trinidad Comment
  HSC95683  Stellaria media Kevin Thomas 2004-3-18 6 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  HSC48033  Stellaria nitens Brad Klipfel 1974-5-27 407 Humboldt Horse Mtn. Comment
  HSC40579  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1976-7-1 2913 Humboldt Along NW side of Lassic Peak (Signal Peak). 1738 Comment
  HSC98186  Stipa lemmonii J. P. Tracy 1930-7-23 9125 Humboldt Horse Mtn. 1524 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
  HSC70690  Streptanthus tortuosus Gail Newton 1980-7-15 1567 Humboldt Near Sims Mtn. 1311 Comment
  UCD116417  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt south of airport, about 5 miles east of Kneeland. Comment
  UCD84700  Streptanthus tortuosus Robert E. Preston 2009-5-27 2681 Humboldt 5.9 mi S of Weitchpec, along Hwy 96. 188 Comment
  UC1103496  Streptopus amplexifolius var. americanus Joseph P. Tracy 1949-6-25 18346 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC22723  Swertia albicaulis var. nitida J. Burtt Davy 1899-6-21 5737 Humboldt e slope Hoopa Mt. (on the borders of Supply Creek); North Coast Ranges, , Supply Creek Comment
  UC562304  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC63139  Swertia radiata M. A. Baker 1979-6-27 935 Humboldt Head of Oregon Creek Comment
  CAS-BOT-BC99159  Symphyotrichum chilense P. C. Everett; E. K. Balls 1959-10-25 23960 Humboldt 14 mi. W. of Willow Creek on Hwy. 299 to Arcata 502 Comment
  CHSC10151  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata. Along the sides of the Lanphere County Road by Mad River Slough. Comment
  HSC49139  Symphyotrichum chilense J. O. Sawyer, R. J. Cole 1978-10-10 3319 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  CAS-BOT-BC99162  Symphyotrichum chilense Doris K. Kildale 1925-9-26 1365 Humboldt Mouth of Mad River Comment
  CAS-BOT-BC99163  Symphyotrichum chilense Carl B. Wolf 1927-8-22 808 Humboldt Along the hills near teh ocean 1 mile south of Orick. Comment
  HSC90472  Symphyotrichum chilense Jean Hanson 1980-8-28 125 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  UC672289  Symphyotrichum subspicatum Frank W. Peirson 1923-7-11 3882 Humboldt 7 mi n Arcata Comment
  RSA153390  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Humboldt County: Arcata Bottoms, 0.5 mile S of the Mad River, 0.75mile W of Hwy 101, 2miles N of Arcata Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  HSC21155  Synthyris reniformis D. E. Anderson 1962-2-10 1917 Humboldt 0.5 mi. E of Big Lagoon Elementary School along abandoned stretch of Hwy. 101 Comment
  SEINET13750617  Synthyris reniformis J. P. Tracy 1906-4-15 2408 Humboldt Northern Coast Ranges, Bald Mt. near Korbel. 610 Comment
  UC604632  Synthyris reniformis Joseph P. Tracy 1938-4-5 15705 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  HSC90678  Tanacetum bipinnatum Gail Newton 1982-5-5 2523 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1223071  Tanacetum parthenium Joseph P. Tracy 1946-9-10 17659 Humboldt Tracy's garden, at Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC376833  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  HSC34631  Taraxacum officinale A. M. Montalvo 1975-4-9 202 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  HSC38893  Tauschia kelloggii J. P. Smith, J. O. Sawyer 1973-5-12 6684 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  UC162623  Tauschia kelloggii Joseph P. Tracy 1911-7-4 3289 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, w side of Trinity River, Willow Creek 182 Comment
  UC1198263  Taxus brevifolia Joseph P. Tracy 1908-6 2925 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  SD88395  Tellima grandiflora Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  SEINET12217338  Tellima grandiflora F. H. Utech 1988-1 88 -279 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, bluffs above Van Duzen River 800 Comment
  UC1196943  Tetrapteron graciliflorum Joseph P. Tracy 1902-6-3 1673 Humboldt near Fruitland; Northern Coast Ranges 609 Comment
  UC1222745  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC101439  Thelypteris nevadensis Cara M. Witte Aug 2009 1070 Humboldt Grouse Mountain. Forest Service Road 4N32, .25 mile south of intersection with 5N04 1466 Comment
  UC673059  Thermopsis gracilis Joseph P. Tracy 1933-8-6 12955 Humboldt French Camp Ridge 1066 Comment
  CHSC96779  Thlaspi montanum P. Haggard 2004-8-18 1285929 Humboldt North Coast Ranges. Friday Ridge Rd, Willow Creek. Comment
  CAS-BOT-BC81312  Thuja plicata Dr. A. Kellogg; W. G. W. Harford 1868-9 933 Humboldt unspecified Comment
  CAS-BOT-BC81313  Thuja plicata Doris K. Kildale 1926-8-28 2567 Humboldt Wildcat ridge, west of Ferndale near Boynton's 457 Comment
  UC615042  Thuja plicata Beryl O. Schreiber 1934-6-5 1132 Humboldt 5 mi e of Blue Lake (road to Redding, wooded slope) Comment
  UC1198816  Thysanocarpus curvipes Joseph P. Tracy 1911-7-4 3281 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, , trib of Trinity River 152 Comment
  CAS-BOT-BC436904  Tiarella trifoliata var. unifoliata Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Bull Creek Comment
  JEPS49704  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-29 16441 Humboldt Weott Comment
  CAS-BOT-BC436905  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 b Humboldt Near Wilder's Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  HSC97516  Tolmiea diplomenziesii Kay Izlar 2001-3-24 7 Humboldt HSU forest along Jolly Giant Creek 43 Comment
  CAS-BOT-BC447609  Tolmiea menziesii Volney Rattan 1883-6-1 s.n. Humboldt Humboldt County Comment
  HSC89584  Torilis arvensis M. Roantree 1985-5-30 67 Humboldt West side of Trinidad Head Comment
  UCD93214  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-8-17 88 Humboldt South Fork Mtn., ca. 15 miles N.E. of Bridgeville-Trinity County line. Comment
  SEINET11800250  Tracyina rostrata J. P. Tracy 1950-1 18859 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 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
  HSC44328  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3700 Humboldt Above Alder Spring 1616 Comment
  SEINET8999565 Image available Trichostema oblongum Unknown 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek Comment
  SBBG5617  Trientalis latifolia H. and M. Dearing 1933-5-16 1292 Humboldt Weott Comment
  UCD117587  Trientalis latifolia D. Sanchez-Mata; S. Rivas-Martinez, M. Costa, and M. Ladero 1998-6-10 s.n. Humboldt Trinidad-Patricks Point. 25 Comment
  UC1197235  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1921-6-12 5820 Humboldt Kneeland Prairoe Northern Coast Ranges 762 Comment
  UC160920  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-7-4 2535 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  UC1223514  Trifolium barbigerum Joseph P. Tracy 1942-6-15 17120 Humboldt Englewood Prairie Comment
  UC1197200  Trifolium ciliolatum Joseph P. Tracy 1914-5-14 4455 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  JEPS65839  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM301285  Trifolium dichotomum Joseph P. Tracy 1942-5-16 11555 Humboldt Vicinity of Garberville. 152 Comment
  HSC45171  Trifolium dichotomum R. Sutherland 1978-5-21 3 .21578 Humboldt 433 Comment
  UC149767  Trifolium dubium Harley P. Chandler May 1901 1127 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  HSC15117  Trifolium dubium A. E. Inman 1982-5-25 Humboldt N bank of Mad River, 200 yrds. W of Lindsey Creek Comment
  UCD107930  Trifolium eriocephalum subsp. eriocephalum W. A. Williams 1956-6-1 s.n. Humboldt Kneeland Soil Series, Kneeland. 822 Comment
  HSC46037  Trifolium fucatum Catherine Chin 1978-5-5 56 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  SEINET12154196  Trifolium fucatum L. K. Henry 1971-1 s.n. Humboldt Along Rt. 36, 2 mi E of Dinsmore, in Six Rivers Nat'l Forest Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UCR95636  Trifolium hybridum R. F. Thorne, Percy C. Everett 1965-8-8 35268 Humboldt North Coast, N edge of Eureka, east of Hwy 101 5 Comment
  HSC101996  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 895 Humboldt Patterson Meadows 1555 Comment
  UC162780  Trifolium longipes var. hansenii Joseph P. Tracy 1908-6 2919 Humboldt nw slopes Buck Mtn; Northern Coast Ranges 1219 Comment
  UC1223333  Trifolium longipes var. oreganum Joseph P. Tracy 1950-7-1 18945 Humboldt near Clear Lake (where the Friday Ridge comes ot the top of Grouse Mtn Ridge); Grouse Mtn summit 1219 Comment
Read comments
Apr 3 2008
  UC1212191  Trifolium macraei H. E. and S. T. Parks 1935-6-1 4994 Humboldt near coast (Egg Point); Trinidad Comment
  HSC71633  Trifolium microcephalum J. P. Smith 1973-5-26 6878 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC40950  Trifolium microdon Linda M. Barker 1976-6-1 1544 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC160940  Trifolium microdon J. P. Tracy 1900-5-28 822 Humboldt Eureka vicinity 0 Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  UC1223338  Trifolium obtusiflorum Joseph P. Tracy 1933-6-24 12614 Humboldt hills at n end Big Lagoon Comment
  UC1197489  Trifolium oliganthum Joseph P. Tracy 1922-4-30 6002 Humboldt near Willow creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  HSC77397  Trifolium repens C. J. Thomas 1983-5-9 30 Humboldt 23 Comment
  UC1223320  Trifolium subterraneum Joseph P. Tracy 1951-6-21 19520 Humboldt in experimental garden of A. H. Nurphy on ranch of Everett Beck Hydesville Comment
  RSA259546  Trifolium subterraneum David Ferranti 1974-5-6 s.n. Humboldt 4360 1/2 Union Street Comment
  UC495676  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  SEINET6935462  Trifolium willdenovii Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC103851  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1851 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  HSC15181  Trifolium wormskioldii Joel W. Reinhard 1966-5-14 40 Humboldt Two beaches N of College Cove. Comment
  SEINET10577442  Trifolium wormskioldii var. wormskioldii Joseph P. Tracy 1911-6-25 Tracy 3246 Humboldt At Eureka 0 Comment
  HSC82963  Triglochin concinna A. L. Eicher 1986-5-10 Humboldt Bordering Humboldt Bay, 0.3 mi. S of the jct. of Samoa Blvd. and Vance Ave. 1 Comment
  CAS-BOT-BC520052  Trillium albidum R. F. Freeman; J. D. Freeman 1967-5-7 581 Humboldt Humboldt County Comment
  SEINET12046256  Trillium albidum J. P. Tracy 1950-1 18646 Humboldt head of South Yager Comment
  CAS-BOT-BC133390  Trillium ovatum Alice Eastwood 1939-3-19 18899 Humboldt Bolling Grove Comment
  HSC70327  Trillium ovatum M. A. Baker 1980-6-8 1882 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC133398  Trillium ovatum Volney Rattan 1879-6-1 s.n. Humboldt Trail to Hoopa Comment
  HSC15701  Trillium ovatum D. M. Thomson 1965-4-26 30 Humboldt Along Gold Bluff Rd. 1.0 mi. S of Prairie Creek State Park Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  BLMAR608  Triphysaria eriantha Jennifer Wheeler 2011-4-1 608 Humboldt King range, located before McNutt Gulch on Mattole Rd Comment
  HSC33758  Triphysaria eriantha subsp. eriantha A. Montalvo 1975-5-24 275 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1222434  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1927-5-8 7984 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC146242  Triphysaria eriantha subsp. eriantha J. P. Tracy 1904-4-24 2035 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  JEPS26220  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach Northern Coast Ranges, Little River Beach (sand dunes) 6 Comment
  UC657728  Triphysaria eriantha subsp. eriantha Milo S. Baker 1941-4-10 9942 Humboldt along hiwy a few mi s Eureka 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
  SDSU19199  Triphysaria pusilla Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3009 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1385 Comment
  UC176946  Triphysaria pusilla Joseph P. Tracy 1913-6-18 4196 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1198042  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1936-6-6 14862 Humboldt Eureka 6 Comment
  HSC98871  Trisetum canescens Cara Witte 2007-7-8 443 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC1103148  Trisetum canescens Joseph P. Tracy 1917-5-30 4789 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  UC1146668  Trisetum canescens Freed W. Hoffman 1949-7-15 3012 Humboldt e slope Mule Slide (Mt. Lassic area, a little s of Blue Ridge); North Coast Ranges, Mt. Lassic area Comment
  UC33738  Trisetum canescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt ridge near Harris Comment
  UCD93635  Trisetum canescens R. Tofsrud 1947-7-1 199 Humboldt North of Harris. Comment
  SEINET198591 Image available Trisetum cernuum H. E. Parks, S. T. Parks 7551 Humboldt Spruce Cove Trinidad. 61 Comment
  UC682073  Trisetum cernuum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3107 Humboldt 5 mi n Orick (on U.S. Hwy 101) Comment
  SD52191  Triteleia hyacinthina Frank Stephens 1894-5-14 10295 Humboldt Eel River. 320 Comment
  UC1225868  Triteleia hyacinthina Joseph P. Tracy 1942-6-15 17136 Humboldt near Redcrest resort (Englewood); Englewood 91 Comment
  UC1225864  Triteleia peduncularis Joseph P. Tracy 1942-6-15 17123 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  SBBG25959  Tsuga heterophylla E. R. Blakley 1966-8-17 6798 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  SD56793  Tsuga heterophylla Darley F. Howe 1963-7-7 Humboldt 5 miles north of Orick on Highway #101 Comment
  UC1585363  Umbellularia californica R. Raiche, K. Zadnik, and H. Forbes 1989-2-10 Humboldt just w of Pine Ridge Summit (w of Hoopa, Bair Road); Bair Road 840 Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  HSC37411  Urtica dioica subsp. gracilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 507 Humboldt Along Lost Man Creek. 38 Comment
  POM87676  Urtica dioica subsp. gracilis L. R. Abrams, R. C. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon, south of Orick. Comment
  HSC62985  Utricularia macrorhiza David Wheeler 1979-4-21 75 Humboldt Fieldbrook Elementary School, pond to the W of the baseball fields. Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  HSC96264  Vaccinium cespitosum Eric Schori, Kazuyuki Ishimaru 2005-6-24 16 Humboldt Branch rd. off Titlow Hill Rd., Buck Flat 1570 Comment
  HSC47491  Vaccinium ovatum Sheila Logan 1978-4-9 15 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC79432  Vaccinium ovatum Kenneth Clark 1981-4-5 1301 Humboldt Above S fork Dead Man's Gulch 114 Comment
  POM118414  Vaccinium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC199419  Vaccinium parvifolium C. B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  CAS-BOT-BC199424  Vaccinium parvifolium Doris K. Kildale 1927-3-14 1533 Humboldt Southern approach to Blue Slide on old Bridgeville road. Van Duzen River Comment
  CAS-BOT-BC199425  Vaccinium parvifolium Doris K. Kildale 1927-3-25 3012 Humboldt Humboldt Hill near Bucksport School House 30 Comment
  HSC98120  Vaccinium parvifolium Cara Witte 2007-5-24 113 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1578 Comment
  JEPS66688  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  UC562450  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  SEINET12335251  Valeriana sitchensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -313 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  JEPS9384  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UC198659  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia (Scotia Bluff); Northern Coast Ranges, Eel River 60 Comment
  HSC44529  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1973-7-1 137 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC76047  Vancouveria hexandra Doris Kildale 1931-5-10 10677 Humboldt Snow Camp. Comment
  CAS-BOT-BC76086  Vancouveria planipetala L. R. Abrams 1918-6-16 7189 Humboldt Willow Creek. Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  SEINET12094715  Vancouveria planipetala F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -281 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  RSA152385  Velezia rigida Joseph P. Tracy 1947-7-5 17774 Humboldt Trinity Summit; Ridge top one mile W of Mud Springs. 1159 Comment
  CAS-BOT-BC528852  Veratrum californicum Doris K. Kildale 1927-7-1 3613 Humboldt Alton 20 Comment
  UC1198212  Veratrum californicum var. californicum Joseph P. Tracy 1932-7-20 10733 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1173646  Veratrum insolitum Joseph P. Tracy 1936-8-8 15127 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1198209  Veratrum insolitum Joseph P. Tracy 1949-7-19 18386 Humboldt head Friday Ridge; Grouse Mountain 1524 Comment
  HSC27420  Verbena lasiostachys Thomas W. Nelson 1970-9-3 213 Humboldt Mad River. Comment
  HSC55335  Veronica americana Terry Griswold, Marvin Butler 1979-7-12 7179 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  UCD124661  Veronica americana Malcolm A. Nobs; S. Galen Smith 1949-8-9 1227 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  HSC55315  Veronica peregrina subsp. xalapensis Terry Griswold, Marvin Butler 1979-7-11 7053 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC147898  Veronica peregrina subsp. xalapensis J. P. Tracy 1909-5-23 2976 Humboldt immediate vicinity of Eureka 0 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
  HSC21209  Veronica persica Elrid H. Spinas 1948-5-22 35 Humboldt Horse Mtn. Comment
  CHSC31325  Vicia Mark Stopher 1980-6-4 101 Humboldt Uncommon in diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  SEINET12157685  Vicia americana subsp. oregana J. P. Tracy 1946-1 17569 Humboldt at Green Point, W of Redwod Creek on Trinity Hwy 457 Comment
  HSC39004  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-5-31 2650 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC56929  Vicia americana var. americana G. L. Clifton, Butler 1979-7-26 9357 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC99295  Vicia americana var. americana Jimerson, J. Pageau 1979-8-10 719 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  SEINET10738618  Vicia americana var. americana J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13014 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UC709409  Vicia faba Joseph P. Tracy 1940-4-7 16527 Humboldt Bayside 15 Comment
  HSC31735  Vicia gigantea Donald Spalinger 1974-4-20 17 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  JEPS66176  Vicia hassei Lincoln Constance 1934-6-6 826 Humboldt Dyerville to Horse Prairie (fire trail); South Fork Eel River, Bull Creek Region Comment
  HSC33770  Vicia hirsuta Paul Dryden 1975-5-24 202 Humboldt Samoa Dunes, across from the boat landing. Comment
  RSA34309  Vicia hirsuta C. Kistner 1935-5-5 s.n. Humboldt Arcata Comment
  HSC15272  Vicia sativa subsp. nigra R. A. Rasp 1964-4-5 32 Humboldt 1 mi. S of Hoopa on Willow Creek Rd. Comment
  UC1197472  Vicia sativa subsp. sativa J. P. Tracy 1909-7-22 3025 Humboldt immediate vicinity Eureka 0 Comment
  UC1761428  Viola Milo S. Baker 1923-7-30 Humboldt 1/2 mi W of Fredericksons House (near Hwy from Eureka to Bridgeville on Van Dusen River) Comment
  HSC21763  Viola adunca Doris K. Kildale 1926-3-27 1662 Humboldt Gans Prairie - Bald Hills Comment
  UC1198463  Viola adunca Joseph P. Tracy 1926-3-14 7384 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1762356  Viola adunca Milo S. Baker 1926-4 5432 Humboldt Carlotta Comment
  JEPS50215  Viola bakeri Joseph P. Tracy 1932-7-15 10596 Humboldt ridges e of Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  HSC26335  Viola glabella Thomas W. Nelson 1971-3-30 363 Humboldt Beside Howe Creek Comment
  UC1761424  Viola glabella Milo S. Baker 1926-7-14 60 Humboldt S. Fork Mt., Forest Road 4 1/2 mi N of hwy Comment
  UC1762124  Viola glabella Milo S. Baker 1926-7 145 -26 Humboldt S. Fork Mt., 5 mi from hwy Comment
  RSA21092  Viola hallii Carl B. Wolf 1937-6-14 8820 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC1198464  Viola lobata subsp. integrifolia Joseph P. Tracy 1935-7-14 14068 Humboldt Back of Clear Lake; North Coast Ranges, Grouse Mountain. 1524 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
  SEINET10404787  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  SBBG4837  Viola sempervirens H. and M. Dearing 1933-5-16 1066 Humboldt N of Weott Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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  UCR37515  Viola sempervirens C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-5-27 109 Humboldt Onion Mountain, Rd. 13 Nol, 7.0 mi west of Bluff Creek (SR 96) 1300 Comment
  JEPS50231  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  RSA46480  Viola sempervirens Doris K. Kildale 1927-3-19 2901 Humboldt Luffenholtz Creek. Comment
  HSC60141  Vitis californica M. A. Baker 1977-6-6 368 Humboldt Hoopa Comment
  RSA123466  Vulpia bromoides H. S. Yates 1936-6-16 5663 Humboldt 1 miles southwest of Samoa. 6 Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  UC1103716  Vulpia microstachys var. microstachys Joseph P. Tracy 1912-7-31 3917 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC1145199  Vulpia microstachys var. microstachys Joseph P. Tracy 1936-6-17 1496 1/2 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  UC212886  Vulpia microstachys var. microstachys Joseph P. Tracy 1919-5-31 5161 Humboldt near Willow Creek (hillslopes at the w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD94572  Vulpia microstachys var. pauciflora A. H. Murphy 1947-6-24 s.n. Humboldt Horse Mtn. 2 miles southeast of Berry's Summit on US Hwy 299. Comment
  HSC37935  Vulpia myuros Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC65449  Vulpia myuros J. P. Smith 1973-5-26 6796 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC9924  Vulpia myuros Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  UCD94427  Vulpia myuros Collector unknown 1923-7-12 26 Humboldt Briceland. Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  HSC20441  Whipplea modesta D. E. Anderson 1962-5-1 2197 Humboldt 2 mi. W of Hoopa Comment
  HSC33414  Whipplea modesta Thomas W. Nelson 1974-5-30 1348 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  JEPS25683  Whipplea modesta P. C. Hutchison 1961-5-22 2008 Humboldt on US 299 14.3 mi e Arcata junction with hiway US 101 Comment
  UC1198902  Whipplea modesta Joseph P. Tracy 1942-6-23 17232 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC382929  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC102193  Wyethia angustifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1107 Humboldt Andy's Camp 1564 Comment
  UC36765  Wyethia angustifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5726 Humboldt Supply Creek Hoopa Valley, Supply Creek (Hoopa Valley, north-western California) Comment
  HSC98513  Wyethia longicaulis Cara Witte 2007-5-21 67 Humboldt White Oak Opening. 1257 Comment
  HSC76424  Xerophyllum tenax Denis Kearns 1981-6-24 29 Humboldt Near Cedar Camp 1219 Comment
  UC13722  Xerophyllum tenax Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC34981  Zeltnera muehlenbergii Thomas W. Nelson 1974-9-13 1711 Humboldt King Salmon area Comment
  SD56768  Zeltnera muehlenbergii Darley F. Howe 1963-7-8 3622 Humboldt 8.2 miles west of Bridgeville on California 36; Van Duzen Road. 91 Comment



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