Search Results — 2000 specimen records retrieved (1346 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC73937  Abies concolor Gail Newton 1980-6-24 593 Humboldt Near Ladder Rock 1570 Comment
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  HSC89414  Abies grandis P. A. Daly 1986-3-12 92 Humboldt Trinidad Head, along trail 61 Comment
  HSC16134  Abronia latifolia D. E. Anderson 1961-9-22 1828 Humboldt Comment
  CAS-BOT-BC233800  Abronia umbellata H. E. Parks 1941-9-1 24212 Humboldt Mouth of Little River Comment
  RSA28775  Abronia umbellata subsp. breviflora H. E. Parks 1941-09 24212 Humboldt Mouth of Little River. Comment
  HSC75231  Abronia umbellata var. breviflora D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC436987  Acaena novae-zelandiae D. W. Cooper 1966-10-10 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CAS-BOT-BC330545  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt McClellan Mt., 5 miles E. of Bridgeville 670 Comment
  SDSU2131  Acer circinatum Harvey 1938-8-14 2327 Humboldt US 299 Arcata - Willow Creek. Hayden Flat. Comment
  UC35021  Acer circinatum Chesnut and Drew 1888-5 Humboldt Arcata Comment
  HSC57655  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-25 10828 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC73028  Acer glabrum var. torreyi Gail Newton 1980-7-23 1757 Humboldt Near Packsaddle Ridge 1463 Comment
  SDSU297  Acer macrophyllum L. N. Harvey 1930-9-27 Humboldt Eel River Comment
  CAS-BOT-BC28589  Achillea millefolium David D. Keck 1938-8-5 4775 Humboldt Big Lagoon Comment
  HSC37962  Achillea millefolium Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  HSC4548  Achillea millefolium R. I. Bonn 1965-4-3 15 Humboldt Four miles West of Arcata on Lanphere Rd. Comment
  RSA296791  Achillea millefolium var. arenicola J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1126254  Achlys californica A. E. Wieslander 1928-6-14 23 Humboldt Cedar Camp Klamath Forest, Hoopa Quad., Cedar Camp Comment
  HSC97562  Achlys californica Cara Witte 2007-6-1 177 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  UC1445424 Image available Achlys californica Ichiro Fukuda and Herbert G. Baker 1963-8-23 Humboldt at Pesula road Humboldt Redwoods State Park 60 Comment
  HSC3336  Achlys triphylla William J. Ferlatte 1968-5-5 1125 Humboldt Hairpin turn on old Hwy. 299 305 Comment
  JEPS52979  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-26 16421 Humboldt Bull Creek Comment
  UC526755  Achnatherum lemmonii Joseph P. Tracy 1930-7-23 9125 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC55637  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-24 9668 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC412847  Aconogonon davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  HSC4593  Adenocaulon bicolor Lincoln Constance 1934-5-29 734 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  UC1102641  Adiantum X tracyi J. Neeman 1948-1 Humboldt near Garberville Comment
  UC1239781  Adiantum aleuticum Joseph P. Tracy 1926-6-20 7636 Humboldt Horse Mt; Northern Coast Ranges 1463 Comment
  SD92989  Adiantum aleuticum W. Bertsch 1953-7-29 213 Humboldt Near Weott 60 Comment
  UC62707  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5729 Humboldt Supply Creek Comment
  JEPS36371  Agoseris apargioides William S. Cooper 1925-7-29 114 Humboldt Samoa Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  UC165754  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1909-8-1 3070 Humboldt edge of grain field Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC165996  Agoseris heterophylla var. heterophylla J. P. Tracy 1903-5-22 1875 Humboldt on grassy hills Alder Point 152 Comment
  UCD51860  Agrostis capillaris A. H. Murphy 1947-8-5 s.n. Humboldt McComb Ranch, Bald Hills, 7-8 miles SE of Orick. Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  CAS-BOT-BC127294  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA21206  Agrostis exarata C. B. Wolf 1937-8-10 9095 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC1103387  Agrostis exarata Joseph P. Tracy 1927-6-19 8192 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1145154  Agrostis exarata Joseph P. Tracy 1938-7-11 16050 Humboldt sand dunes near Samoa Humboldt Bay 6 Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC526886  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Big Lagoon North Coast Region 6 Comment
  UC726371  Agrostis exarata A. A. Heller 1923-7-8 13772 Humboldt near Fortuna Comment
  LA10251  Agrostis exarata var. exarata H. E. Parks; June 1935 5607 Humboldt Spruce Cove, Trinidad Comment
  HSC76547  Agrostis gigantea Teresa Prendusi 1981-7-23 341 Humboldt Near Black Mtn. 890 Comment
  UC33734  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5723 Humboldt Supply Creek Comment
  UCD53038  Agrostis microphylla Joseph P. Tracy 1938-7-5 16006 Humboldt Carlotta, by old Strong's District School House, 5 miles east of town. 60 Comment
  CAS-BOT-BC139127  Agrostis oregonensis Joseph P. Tracy 1927-8-22 8344 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  CAS-BOT-BC139129  Agrostis oregonensis Joseph P. Tracy 1930-7-16 8995 Humboldt Northern Coast Ranges. South Fork Mountain. At Mckay Camp. 1676 Comment
  CAS-BOT-BC139130  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt Northern Coast Ranges. Snow Camp. 1371 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  CAS-BOT-BC139132  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  UC589898  Agrostis pallens H. S. Yates 1936-6-16 5685 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  CAS-BOT-BC138636  Agrostis stolonifera Carl B. Wolf 1927-8-28 1189 Humboldt Eureka Bay, on the road to Arcata. Comment
  HSC37913  Agrostis stolonifera Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  UCD53476  Agrostis stolonifera var. maritima P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  BLMAR32  Aira caryophyllea Brad Barr June, 1982 32 Humboldt King range, Lake Ridge near pond Comment
  HSC73963  Aira caryophyllea Gail Newton 1980-6-7 127 Humboldt Near Brush Mountain 1128 Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  RSA90195  Aira praecox Joseph P. Tracy 1925-3-24 11669 Humboldt Eureka, North Coast Range. Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC60371  Alisma triviale Terry Roth 1979-5-29 101 Humboldt Arcata, at the end of H St. 0 Comment
  CAS-BOT-BC459419  Allium acuminatum Harley P. Chandler 1901-6-1 1349 Humboldt Hupa Indian Reservation, North Coast Ranges 152 Comment
  CAS-BOT-BC460755  Allium amplectens Alice Eastwood; John Thomas Howell 1937-6-23 4832 Humboldt Near Yager Comment
  JEPS56361  Allium bolanderi W. L. Jepson 1902-7-1 1978 Humboldt Three Creeks to Willow Creek Comment
  RSA254786  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC666927  Allium campanulatum Joseph P. Tracy 1933-7-25 12863 Humboldt Grouse Mountain 1524 Comment
  HSC47990  Allium falcifolium B. Klipfel 1974-7-11 699 Humboldt Horse Mtn. Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  UCR45835  Allium falcifolium Thomas W. Nelson 1977-6-15 3446 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  HSC67367  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5411 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  SD131800  Allium peninsulare Barbara Ertter, Thomas J. Delendick 1987-5-16 6920 Humboldt Vista Point, just west of Berry Summit on Highway 299, ca. 15 airmiles east of Arcata, open grassy south-facing slope with scattered seeps and poison oak, dry rocky ridge below vista. 914 Comment
  HSC56339  Allium serra Griswold, Butler 1979-7-10 6224 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC535705  Allium unifolium Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  HSC104412  Allium unifolium Adam N. Canter 2017-4-20 6 Humboldt BLM, Lost Coast Headland, Guthrie Creek 60 Comment
  UC199038  Allophyllum gilioides subsp. violaceum Chesnut and Drew 1888-7-23 Humboldt <Hy-Am-Pum> Comment
  CAS-BOT-BC453427  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS59052  Allotropa virgata W. L. Jepson 1902-7-25 2117 Humboldt Trinity Summit Comment
  HSC76041  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12572 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC170942  Alnus rhombifolia Doris K. Kildale 1925-8-13 1121 Humboldt Willow Creek near its mouth 152 Comment
  CAS-BOT-BC169538  Alnus rubra Carl B. Wolf 1927-8-22 796 Humboldt Big Lagoon Comment
  UCR142775  Alnus rubra H. E. Parks, S. T. Parks 1938-4-1 24126 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  HSC56342  Alnus viridis subsp. sinuata Griswold, Butler 1979-7-10 6257 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  UC1103312  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt Arcata <Bottom> North Coast Ranges, Arcata <Bottom> 15 Comment
  JEPS79807  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UC132197  Amaranthus albus Joseph P. Tracy 1907-8-20 2598 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CHSC10149  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt W. M. Lanphere Farm, Samoa Peninsula. 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
  JEPS40954  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC127637  Ambrosia chamissonis J. P. Tracy 1901-8-7 1275 Humboldt at, on Sea Beach opposite Eureka Samoa Comment
  HSC70381  Amelanchier alnifolia M. A. Baker 1980-6-7 1794 Humboldt Near Brush Mtn. 1128 Comment
  UCSB22194  Amelanchier alnifolia Tracy, Joseph 1933-6-13 Humboldt Hoopa Mountain; Near summit on road from Hoopa westward to Bair's Comment
  UC154236  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-7-18 3014 Humboldt immediate vicinity Eureka 0 Comment
  UCR45376  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3419 Humboldt Beside State Route 36 just west of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  HSC41466  Amelanchier pallida J. P. Smith, J. O. Sawyer 1973-5-12 6690 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC902150  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  CAS-BOT-BC137868  Ammophila arenaria Mary O'Conor 1921-9-26 s.n. Humboldt Eureka. Comment
  HSC39948  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt 3 mi. W of Arcata Comment
  SD41378  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa, sand dunes. Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  HSC91928  Anaphalis margaritacea E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  CAS-BOT-BC45139  Anaphalis margaritacea Mrs. H. C. Cantelow 1936-8-29 s.n. Humboldt 17 mi N of Garberville, S Fork Eel River, 1 mi off Rw. Highway 198 [Redwood Highway?] Comment
  CAS-BOT-BC45140  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 200 yards W of Hwy 101, by RR tracks, Orick Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  JEPS55207  Anemone deltoidea W. L. Jepson 1934-5-7 16690 Humboldt Bull Creek Comment
  HSC98105  Anemone deltoidea Cara Witte 2007-6-27 365 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/2 mile east of spring. 1561 Comment
  UC1028308  Anemone deltoidea George B. Rossbach 1955-6-8 273 Humboldt n portion Prairie Creek Redwoods State Park (Route 101) Comment
  UC1196196  Anemone oregana Joseph P. Tracy 1938-6-13 15899 Humboldt Horse Mtn; in serpentine belt 1432 Comment
  UC249649  Anemone oregana Joseph P. Tracy 1922-4-30 6038 Humboldt Three Creeks; North Coast Ranges 914 Comment
  UC586000  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
  HSC21449  Angelica lucida Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, along elevated area near railroad tracks. Comment
  POM318530  Angelica lucida Patricia Wilder 1968-8-21 4376 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  HSC102080  Antennaria media M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 982 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44340  Antennaria suffrutescens Brad Klipfel 1975-6-17 682 Humboldt Horse Mtn. Comment
  HSC38792  Anthemis cotula J. D. Ackerman 1975-8-31 655 Humboldt Lanphere Rd. near Mad River Slough, Arcata Bottoms 2 Comment
  UC166080  Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Eureka 0 Comment
  UCR48595  Anthemis cotula R. D. Goeden, Don W. Ricker 1987-9-2 870902- 13 Humboldt Loleta, along Cannibal Road 8 Comment
  UCD56137  Anthoxanthum aristatum Joseph P. Tracy 1951-6-26 19548 Humboldt Snow Camp Meadow. Comment
  BLMAR264  Anthoxanthum occidentale Jennifer Anthony-Wheeler 1999-6-16 264 Humboldt Headwaters Forest Reserve, growing at beginning of wildlife rd. Hydesville Quad 536 Comment
  CAS-BOT-BC289125  Anthoxanthum occidentale Doris K. Kildale 1929-3-10 6931 Humboldt Bug Creek, Chaparral Mt. Comment
  SEINET3918448  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mile west of Barry Road.; 0 Comment
  UC526831  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, 1066 Comment
Read comments
Jul 18 2012
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  SEINET6329793  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka, at Bucksport 152 Comment
  UC1198740  Aphanes occidentalis Joseph P. Tracy 1918-4-12 4876 Humboldt near Fish's Mill Creek (Dows Prairie); Northern Coast Ranges 30 Comment
  HSC44500  Aquilegia formosa Brad Klipfel 1973-4-28 14 Humboldt Along Canyon Creek, SW of Korbel Comment
  UC162631  Aquilegia formosa Joseph P. Tracy 1911-7-6 3337 Humboldt between Three Creeks and mouth of Willow Creek Northern Coast Ranges Comment
  SDSU9935  Aquilegia formosa D. F. Howe 1962-5-21 3299 Humboldt 16.4 miles north of Garberville on #101. 61 Comment
  HSC73782  Arabis glabra Gail Newton 1980-6-28 701 Humboldt Near Mad River Butte. 1536 Comment
  RSA246789  Aralia californica R. F. Thorne, P. Everett 1965-8-5 35137 Humboldt Mt. Chamisal: below summit 579 Comment
  HSC98778  Aralia californica Cara Witte 2007-7-25 579 Humboldt Forest Service Road 5N10. Approximately 2 miles south from intersection with Forest Service Road 5N41. 1290 Comment
  SDSU2557  Aralia californica Harvey 1938-8-13 2247 Humboldt Humbolt State Redwood Park. Comment
  HSC40306  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt 3 mi. W of Arcata Comment
  RSA167438  Arbutus menziesii Joseph P. Tracy 1951-5-20 19401 Humboldt Near Ashfield Ridge. Comment
  UC1196879  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC1119281  Arctium minus H. L. Person 1932-9-3 Humboldt Camp 9, Freshwater Euerka Quad. Comment
  UC582722  Arctostaphylos Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCR32088  Arctostaphylos canescens David J. Keil 1983-7-2 17321 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC24093  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC24096  Arctostaphylos canescens subsp. canescens Joseph P. Tracy 1949-8-4 18405 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  BLMAR176  Arctostaphylos columbiana Donald Hazlett 1994-6-7 176 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC23792  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny. Comment
  CAS-BOT-BC23817  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 30 Comment
  HSC33075  Arctostaphylos columbiana Thomas W. Nelson, J. D. Ackerman 1974-5-14 1264 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  JEPS19869  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6168 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  RSA622678  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27675 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
  RSA622682  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27770 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UC397305  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6169 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC718361  Arctostaphylos columbiana Carl B. Wolf 1934-7-2 5904 Humboldt 4 mi from Snow Camp (on road to Bald Mt.); Mts. E. of Korbel Comment
  RSA152311  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff. 91 Comment
  HSC100252  Arctostaphylos densiflora J. P. Smith, & J. O. Sawyer 2010-5-2 12809 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC101662  Arctostaphylos glandulosa subsp. glandulosa J. P. Smith, J. O. Sawyer 2011-4-23 13123 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  UC1120179  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1931-5-19 200 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  UC585933  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13331 Humboldt ridge 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  CAS-BOT-BC24365  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-7-25 2430 Humboldt Briceland Bridge 1/2 mile w. of Darkville. Comment
  UC153967  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1909-10-7 3112 Humboldt Gans Prairie Northern Coast Ranges 609 Comment
  HSC31439  Arctostaphylos nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5557 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC40546  Arctostaphylos nevadensis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2528 Humboldt Canyon of Bear Creek, W of Black Lassic 1555 Comment
  SEINET11988226  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4325 Humboldt Tildel Regional Park Botanic Garden, Berkeley, orig. from French Camp Comment
  CAS-BOT-BC43979  Arctostaphylos uva-ursi Greg de Nevers 2001-4-18 12251 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  CAS-BOT-BC46794  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  CAS-BOT-BC47214  Arctostaphylos uva-ursi D. E. Breedlove 1962-6-7 3034 Humboldt 1.5 mi. s. of Samoa on peninsula on western side of Humboldt Bay. Comment
  SEINET2031083 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-1 16740 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  UCD52031  Arctostaphylos uva-ursi T. I. Storer 1931-7-1 2217 Humboldt Samoa, Humboldt Co. Comment
  RSA1903  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  SEINET11987353  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4047 Humboldt Tilden Botanic Garden, Berkeley, orig. from Samoa Comment
  HSC94000  Arctotheca calendula T. C. Fuller, G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 mi W of Main Street, on Centerville beach rd. Ferndale Comment
  CAS-BOT-BC137569  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Range. Vicinity of Garberville. 121 Comment
  HSC16897  Armeria maritima subsp. californica J. R. Kahl 1962-5-13 33 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  HSC22847  Arnica cernua D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5052 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  HSC98121  Arnica cernua Cara Witte 2007-5-24 119 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  JEPS20981  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mt. 1432 Comment
  RSA417143  Arnica discoidea H. M. Pollard 1947-8-8 s.n. Humboldt South River Road, south of Orleans Comment
  UC249832  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  UC582489  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie ((Trinity Summit)); Trinity Summit 1524 Comment
  CAS-BOT-BC94772  Arrhenatherum elatius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  CAS-BOT-BC84835  Artemisia douglasiana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC449644  Artemisia dracunculus Joseph P. Tracy 1912-10-20 4002 Humboldt on sandy bars of Van Duzen River (Alton) 30 Comment
  CAS-BOT-BC90869  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Sand hills of ocean beach at Samoa, opp. Eureka Comment
  UC1052468  Artemisia pycnocephala H. E. and S. T. Parks 1952-6-1 24495 Humboldt Samoa Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  UC1199378  Artemisia suksdorfii Joseph P. Tracy 1939-5-28 16309 Humboldt coast bluffs s Centerville 60 Comment
  CHSC101365  Aruncus dioicus var. pubescens C. Sander; J. Wheeler 2004-9-1 CA 330 -62 Humboldt Ecoregion 14. Growing along Titlow Hill road off of Hwy 299. 1188 Comment
  RSA46846  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC400533  Asarum caudatum Volney Rattan 1882-6-1 s.n. Humboldt Mad River Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  RSA96571  Asarum caudatum E. K. Balls 1954-5-31 19496 Humboldt 4 mi. ne of Strongs Station, Van Duzen river, on Yager Road Comment
  SDSU2540  Asarum caudatum Harvey 1938-8-13 2242 Humboldt Humbolt State Redwood Park. Comment
  UC1103509  Asarum caudatum Joseph P. Tracy 1932-7-16 10643 Humboldt Trinity Summit; woods at edge of McKay Prairie 1584 Comment
  UC1173688  Asclepias cordifolia Joseph P. Tracy 1939-5-6 16277 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222669  Asclepias speciosa Joseph P. Tracy 1950-7-6 19002 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  SEINET3823300 Image available Aspidium munitum Joseph P. Tracy 1924-8-24 6878 Humboldt East Fork of Willow Creek 457 Comment
  CAS-BOT-BC65940  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC1053  Aspidotis densa Elrid H. Spinas 1948-5-22 41 Humboldt Horse Mtn. Comment
  HSC73807  Aspidotis densa M. A. Baker 1980-6-16 1927 Humboldt Near Monks Camp. 1097 Comment
  SEINET200793 Image available Aspidotis densa J. P. Tracy 1942-6-23 17265 Humboldt Water Dog Lake; Trinity Summit 1830 Comment
  RSA12562  Aster alpigenus C. B. Wolf 1934-7-2 5877 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  CDA30679  Aster chilensis M. K. Beyers, I. Shepardson 2009-9-13 252 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
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  CAS-BOT-BC192859  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca. 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  CAS-BOT-BC193134  Astragalus rattanii var. rattanii Volney Rattan 1883-6-13 s.n. Humboldt Bug Creek, a tributary of Mad Riv. Comment
  CHSC118459  Astragalus umbraticus Courtney Wilson; Matt Groberg, Bob Meinke 2011-6-30 Humboldt On Green Diamond Resourse Company private land. Roadside edge on west slope of French Camp Ridge. 853 Comment
  RSA138295  Astragalus umbraticus Volney Rattan 1878-1 1878 Humboldt Humboldt. Comment
  HSC48318  Asyneuma prenanthoides Brad Klipfel 1973-8-3 309 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75271  Asyneuma prenanthoides J. O. Sawyer, D. A. Thornburgh 1980-9-9 4085 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC95880  Athyrium filix-femina var. cyclosorum Will Ferrand 2002-2-2 22 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC922658  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  HSC6517  Athysanus pusillus D. E. Anderson 1963-5-19 2470 Humboldt Kneeland Area Comment
  HSC4342  Atriplex patula D. E. Anderson 1961-9-13 1810 Humboldt Big Lagoon County Park Comment
  CDA15325  Atriplex prostrata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. Comment
  HSC45051  Avena fatua R. Sutherland 1978-4-24 8 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  HSC9032  Avena sativa E. W. Styskel 1964-4-28 76 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  UC249846  Baccharis glutinosa Joseph P. Tracy 1924-8-10 6810 Humboldt Van Duzen River, Blue Slide 91 Comment
  RSA134603  Baccharis pilularis Percy C. Everett, E. K. Balls 1959-10-25 23968 Humboldt 1.5 miles from Ferndale on Old Coast Road to Capetown Comment
  HSC28931  Baccharis pilularis subsp. consanguinea Diane Johnson 1972-11-14 Humboldt Butler Valley near Maple Creek Comment
  UC581761  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 mi upstream from mouth Bear River 152 Comment
  UC1198854  Bensoniella oregona Mrs. R. D. Douglas 1923-5-26 Humboldt Murphy Meadows 1066 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  HSC74672  Berberis aquifolium Gail Newton 1981-5-16 2172 Humboldt Near Bug Creek. 1228 Comment
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  UC552297  Berberis aquifolium Joseph P. Tracy 1934-7-6 13660 Humboldt at crossing of the Kneeland Rd Lawrence Creek 457 Comment
  HSC74649  Berberis nervosa M. A. Baker 1980-5-17 1207 Humboldt Near Le Perron Peak 792 Comment
  HSC35712  Berberis pinnata Thomas W. Nelson 1975-10-12 2236 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC13491  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  OBI16932  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Crk. Below Orleans 8 mi Comment
  HSC73635  Bistorta bistortoides M. A. Baker 1980-7-22 3107 Humboldt Near Grogan Hole. 1676 Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  HSC91603  Blechnum spicant E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, by trail to Agate Beach Comment
  UC552303  Boechera subpinnatifida Joseph P. Tracy 1933-7-25 12878 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC100574  Boisduvalia densiflora Carl C. Marshall Jul 1887 398 Humboldt Spruce Grove. Comment
  POM247177  Boisduvalia glabella Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC420257  Boykinia occidentalis Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC420259  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon Comment
  UC667115  Boykinia occidentalis Joseph P. Tracy 1934-7-22 13484 Humboldt at crossing of the Bridgeville-Kneeland Road North Yager Creek 396 Comment
  CAS-BOT-BC36698  Brassica rapa Roxana S. Ferris 1937-8-21 9391 Humboldt Face of Cliff above Shelter Cove. Comment
  CAS-BOT-BC36703  Brassica rapa John H. Thomas 1966-3-19 11487 Humboldt Southern end of Big Lagoon just inland from the coast between Eureka and Crescent City. Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  UC581795  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt Camp Grant, along Eel River, 2-5 mi e of the South Fork Eel River 45 Comment
  CAS-BOT-BC127681  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC127680  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Serpentine formatin, Salmon Summit 1767 Comment
  CAS-BOT-BC127682  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain, in open forest of Jeffrey Pine, in serpentine belt 1432 Comment
  HSC32011  Briza maxima J. D. Ackerman 1974-5-26 268 Humboldt 1 mi. S of Trinidad on Scenic Dr. Comment
  UC657696  Briza maxima P. B. Kennedy 1929-6-13 Humboldt Etterberg Comment
  HSC38484  Briza minor Dennis Anderson, J. P. Smith 1971-6-18 - 1064 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  HSC84929  Briza minor R. N. Raynor 1935-6-7 Humboldt Ft. Seward Comment
  HSC3019  Brodiaea elegans subsp. elegans David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC1197748  Brodiaea elegans subsp. elegans Joseph P. Tracy 1942-6-15 17163 Humboldt grassy bench 1/2 mi ne Garberville 304 Comment
  UCSB16626  Brodiaea elegans subsp. elegans Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Greek on US299 822 Comment
  HSC78981  Brodiaea terrestris subsp. terrestris L. P. Janeway 1984-5-16 794 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. 0.25 mi. N of the boat ramp 3 Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9284  Bromus diandrus R. V. Papike 1962-5-25 33 Humboldt Arcata 91 Comment
  HSC9246  Bromus hordeaceus L. H. Myers 1963-5-17 36 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  UC526925  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt 2 to 5 mi e of South Fork Eel River (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  HSC99558  Bromus laevipes K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 223 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC204534  Bromus madritensis subsp. rubens Joseph P. Tracy 1918-5-12 4929 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC162259  Bromus maritimus Roxana S. Ferris 1937-8-21 9389 Humboldt Shelter Cove. Comment
  HSC9265  Bromus racemosus E. W. Styskel 1964-5-7 78 Humboldt 2 mi. S of Samoa near Samoa Rd. Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  RSA126835  Bromus sterilis H. S. Yates 1936-5-17 5714 Humboldt Near Burr valley; South Fork Pk. 915 Comment
Read comments
Apr 6 2017
  UC1145179  Bromus tectorum Joseph P. Tracy 1939-4-29 16248 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  HSC39171  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 - 1231 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC74753  Bromus vulgaris Gail Newton 1981-8-6 2396 Humboldt Near Bug Creek 1125 Comment
  UC1103266  Bromus vulgaris Joseph P. Tracy 1926-6-13 7600 Humboldt near Blue Lake (on Liscom Hill Road); North Coast Ranges, Liscom Hill Road 152 Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC725498  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt Humboldt Camp between Scotia and Pepperwood; Humboldt Camp Comment
  RSA249329  Cacaliopsis nardosmia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5569 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  SD38262  Cakile edentula var. edentula Edith A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  HSC6610  Cakile maritima Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  HSC95096  Cakile maritima Andrea Pickart 2002-7-2 150 Humboldt King Salmon Sand Spit 0 Comment
  HSC90258  Cakile maritima Jean Hanson 1980-5-24 78 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island, 25 ft. from high tide line Comment
  UCD114935  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt Just west of Trinidad and north, across isthmus from Trinidad Bay. Comment
  HSC74068  Calamagrostis foliosa Joyce Walker 1980-5-7 Humboldt Four Mile Creek Comment
  UCD56953  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt North Coast Ranges, rock in Mattole River. Comment
  UCR39782  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Point Delgada Q., Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  UC1145050  Calamagrostis koelerioides Joseph P. Tracy 1936-7-26 15050 Humboldt Willow Creek Canyon; along Trinity Hwy 457 Comment
  CAS-BOT-BC185180  Calamagrostis nutkaensis A. A. Heller 1924-7-24 13880 Humboldt On the bluff at Humboldt County camp 7 miles south of Trinidad. Comment
  CAS-BOT-BC185181  Calamagrostis nutkaensis Doris Kildale Gillespie 1931-6-7 10653 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  CAS-BOT-BC185182  Calamagrostis nutkaensis David D. Keck 1948-7-1 5976 Humboldt Northeast end of Big Lagood. Comment
  UC144083  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-6-13 2995 Humboldt opposite Blue Lake (in Mad River Valley); Northern Coast Ranges, Mad River Valley 30 Comment
  HSC3803  Callitriche trochlearis D. B. Bader 1963-4-1 42 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  UC1197681  Calochortus amabilis Joseph P. Tracy 1935-5-25 13895 Humboldt Dobbyn Creek 152 Comment
  UC667123  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Bosworth's Larrabee Creek 457 Comment
  UCD18587  Calochortus amabilis Roman Gankin 1956-3-17 107 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
Read comments
Feb 17 2006
  HSC48760  Calochortus coeruleus Brad Klipfel 1973-6-10 74 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC44357  Calochortus tolmiei Brad Klipfel 1974-5-27 399 Humboldt Horse Mtn., ridge top near forks in rd. Comment
  RSA47127  Calycadenia ciliosa Doris K. Kildale 1925-8-13 1126 Humboldt Willow Creek 152 Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  UC750741  Calycadenia fremontii Henry M. Pollard 1945-8-31 Humboldt Orleans to Somes Bar Comment
  UC34174  Calycadenia truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 Comment
  HSC49391  Calypso bulbosa R. York 1979-4-21 246 Humboldt Behind the town of Korbel Comment
  HSC48948  Calypso bulbosa M. A. Baker 1979-5-17 732 Humboldt On FS 1 along Wilson Creek, just E of FS 15N01 Comment
  UC13637  Calyptridium umbellatum Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC93522  Calystegia soldanella Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 747 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  HSC6362  Calystegia soldanella D. A. Haskell 1966-4-30 44 Humboldt Near the town of Samoa Comment
  UCSB15924  Calystegia soldanella Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  CAS-BOT-BC493386  Camassia quamash subsp. linearis Doris Kildale 1931-5-10 10558 Humboldt Snow Camp Comment
  HSC59742  Camissonia cheiranthifolia Clark L. Miller 1979-5-9 7118 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  NY679547  Camissonia cheiranthifolia subsp. cheiranthifolia A. A. Heller 1924-7-24 13881 Humboldt At Humboldt County camp, 7 miles S of Trinidad. Comment
  RSA697219  Camissonia cheiranthifolia subsp. cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  HSC36594  Camissonia strigulosa K. Irwin 1976-4-17 Humboldt 1/2 mi. S of Lamphere Nature Conservancy next to Mad River Slough Comment
  CHSC10102  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata. Sand dune fields, Lanphere Farm. Comment
  UCSB15948  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  JEPS11741  Campanula prenanthoides W. L. Jepson 1932-7-26 16413 Humboldt Bull Creek Comment
  UC890509  Campanula prenanthoides Ira L. Wiggins 1930-7-22 4690 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek; Redwood Creek Comment
  UC1326258  Campanula prenanthoides Milo S. Baker 1947-8-8 11925 Humboldt just n Orick (about 10 mi along Rd from Hwy 101 towards Hoopa) 609 Comment
  SEINET10463685  Campanula scouleri Chesnut 1888-7-19 CHESNUT s.n. Humboldt PILOT RIDGE Comment
  UC168957  Campanula scouleri Joseph P. Tracy 1908-6 2858 Humboldt opposite Buck Mountain (in woods); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC6623  Capsella bursa-pastoris Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  RSA302679  Cardamine angulata J. R. Shevock 1972-3-26 1467 Humboldt Hwy 299. 366 Comment
  HSC26654  Cardamine breweri Thomas W. Nelson 1971-4-27 427 Humboldt Along Jolly Giant Creek, HSU campus Comment
  HSC100459  Cardamine breweri Carl C. Marshall Apr 1886 158 Humboldt Wet places, near Tulley's. Comment
  CAS-BOT-BC37422  Cardamine californica Doris K. Kildale 1927-3-20 2913 Humboldt Philipsville on Smith Fork of Eel River. Comment
  HSC40907  Cardamine californica J. O. Sawyer 1970-4-24 2189 Humboldt Groves Prairie below Lone Pine Ridge, N of Willow Creek Comment
  HSC49217  Cardamine californica J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC6698  Cardamine californica Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  LA204278  Cardamine californica Parks; Tracy 1931-3-26 916 Humboldt Lower Van Duzen River 60 Comment
  UC160972  Cardamine californica J. P. Tracy 1911-4-2 3171 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  HSC98050  Cardamine californica var. integrifolia Cara Witte 2007-5-8 5 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC1116221  Cardamine californica var. sinuata Joseph P. Tracy 1948-4-11 17963 Humboldt 1 mi e Dyerville (near South Fork Station); e of Dyerville, near South Fork Station 60 Comment
  HSC6643  Cardamine oligosperma J. W. Johnson 1962-4-8 1219 Humboldt Arcata, Mad River Co. Park Comment
  HSC6647  Cardamine oligosperma Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC1199207  Cardamine oligosperma Joseph P. Tracy 1920-5-18 5328 Humboldt 5 mi from Dyerville (South Fork Eel River, Forest Lodge, along Eel River from South Fork to Scotia); Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  HSC58364  Cardamine pachystigma Terry Griswold, Marvin Butler 1979-7-10 6361 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC668056  Cardaria draba Joseph P. Tracy 1938-6-12 15895 Humboldt opposite mouth of Van Duzen River (Eel River, Alton to Fortuna); Eel River 15 Comment
  RSA0097053  Cardionema ramosissimum R. F. Thorne, Percy C. Everett 1965-8-5 35155 Humboldt Samoa Dunes. 3 Comment
  CHSC48060  Carex L. P. Janeway 1984-6-17 847 Humboldt Drainage along cutbank of Titlow Hill Rd at turn to Horse Mtn. 1420 Comment
  NY25689  Carex amplifolia J. P. Tracy 1914-7-4 4530 Humboldt "High prairie" on Bald Mountain, edge of Murphy's Meadow 1066.8 Comment
  CAS-BOT-BC18075  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC63135  Carex bolanderi M. A. Baker 1979-6-29 967 Humboldt Comment
  SEINET10752409  Carex brainerdii Joseph P. Tracy 1935-7-30 Tracy 14350 Humboldt On ridge 2 miles SW of top Shasta Fir Zone. Comment
  SEINET3900269  Carex breviligulata D. H. Norris 1971-7-17 19600 Humboldt Along Redwood House road about 3 miles west of intersection with Kneeland-Bridgeville road.; 0 Comment
  HSC95814  Carex canescens Juha Pykala, D. H. Norris 1987-6-10 1473 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  UC303016  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  HSC95435  Carex cusickii Gordon Leppig 2001-6-16 1569 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC1103113  Carex deweyana subsp. leptopoda Joseph P. Tracy 1937-6-20 15344 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  UC562273  Carex echinata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8986 Humboldt in meadow at McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  UC562647  Carex feta Joseph P. Tracy 1928-6-17 8451 Humboldt at Willow Creek Trinity River Valley 152 Comment
  JEPS79841  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  SEINET7561246 Image available Carex harfordii Andrew L. Hipp 1999-5-31 456 Humboldt Alder Point, Alder Pt Road ca 3 mi S of Alder Pt. 503 Comment
  CAS-BOT-BC21751  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  POM160302  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake. 152 Comment
  SEINET7854031 Image available Carex hendersonii V. Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of Eel River Comment
  CHSC90286  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8587 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  JEPS25979  Carex laeviculmis Joseph P. Tracy 1932-7-16 10635 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC562428  Carex laeviculmis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC31260  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  POM160829  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  RSA88710  Carex lenticularis var. limnophila F. W. Peirson 1926-7-13 7046 Humboldt Along shore of first lagoon south of Orick. Comment
  SEINET7564994 Image available Carex leptalea Juha Pykala, D. H. Norris 1987-6-24 1895 Humboldt Big Lagoon, Big Lagoon fen. 0 Comment
  CAS-BOT-BC31467  Carex leptopoda LeRoy Abrams 1922-6-25 8254 Humboldt In spruce forest N of Mad River near Arcata. Comment
  HSC48375  Carex leptopoda D. H. Norris May 1970 12457 Humboldt Top of ridge above Freshwater Lagoon Comment
  JEPS26004  Carex lyngbyei Joseph P. Tracy 1938-7-15 16069 Humboldt Mouth of Eel River 3 Comment
  UC562725  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt North Coast Ranges. Grouse Mountain. Comment
  SEINET7483597 Image available Carex mendocinensis L. P. Janeway 2003-1 7944 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on SW side below Titlow Hill Road,2.9 km southeast of Titlow Hill. ;Grouse Mountain quad 1512 Comment
  CAS-BOT-BC32129  Carex multicaulis Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  UC562260  Carex multicaulis Joseph P. Tracy 1927-3-27 7862 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC119546  Carex nudata A. A. Heller 1923-7-10 13795 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CHSC34063  Carex nudata Joseph P. Tracy 1911-6-4 3220 Humboldt Northern Coast Region. Along Little River, 5 miles from the coast. 121 Comment
  HSC39186  Carex nudata D. E. Anderson, J. P. Smith 1971-6-28 1214 Humboldt Along Mad River, 2 mi. S of Blue Lake. 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
  POM289940  Carex obnupta Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad. Comment
  RSA246861  Carex obnupta Robert F. Thorne, Percy C. Everett 1965-8-5 35139 Humboldt Mt. Chamisal; Below summit. 534 Comment
  CDA33127  Carex obnupta E. C. Whitney 1961-4-6 Humboldt Stone Lagoon; in drainage basin. 0 Comment
  RSA22379  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  SEINET10711645  Carex obnupta Robert F. Thorne 1965-8-7 Thorne 35199 Humboldt Big Lagoon; elev. c. 5 ft.; at edge of bog at S end of lagoon. Comment
  RSA88853  Carex ovalis Alice Eastwood, John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore s. Comment
  UC562552  Carex ovalis Joseph P. Tracy 1927-7-17 8279 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  CAS-BOT-BC119245  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  UC201994  Carex pachystachya Joseph P. Tracy 1918-7-5 5017 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC249810  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCSC000108  Carex pansa C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  UC194809  Carex praticola Joseph P. Tracy 1914-5-3 4421 Humboldt Eureka Northern Coast Region 0 Comment
  HSC58704  Carex rostrata Terry Griswold, Butler 1979-7-11 7097 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC98943  Carex serratodens Cara Witte 2007-6-4 196 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  JEPS79864  Carex subfusca Joseph P. Tracy 1935-6-23 13984 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  CAS-BOT-BC116682  Carex subfusca Joseph Prince Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC115577  Carex tumulicola Joseph Prince Tracy 1915-6-6 4642 Humboldt At Eureka 60 Comment
  UC562650  Carex unilateralis Joseph P. Tracy 1930-6-15 8756 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC115535  Carex unilateralis Joseph Prince Tracy 1937-8-7 15618 Humboldt Bald Mountain. Wet place on Murphy Ridge. 914 Comment
  SEINET4170217  Carex unilateralis Unknown 1946-5-30 17539 Humboldt Near Bridgeville 457 Comment
  CAS-BOT-BC115286  Carex utriculata Joseph Prince Tracy 1932-7-14 10563 Humboldt Trinity Summit, Corral Prairie in wet meadow. Comment
  JEPS100923  Carex vesicaria var. major Dean W. Taylor 1991-8-15 12278 Humboldt Snow Camp Lake 1310 Comment
  UC249753  Carex viridula var. viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCD129945  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  HSC98629  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 184 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC59736  Castilleja affinis subsp. litoralis Clark L. Miller 1979-5-13 6127 Humboldt N of Trinidad along Patricks Point Dr. Comment
  JEPS25802  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-31 1222 Humboldt Trinidad Head, near lighthouse Trinidad Head Comment
  UC1196854  Castilleja affinis subsp. litoralis Joseph P. Tracy 1920-7-4 5342 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  SEINET4095429  Castilleja ambigua subsp. ambigua O. M. Clark 1932-1 5331 Humboldt North Eureka. Comment
  HSC90264  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-5-24 69 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of Island, SW shore, 25 ft. from high tide line Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC582583  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  HSC56028  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11570 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  JEPS9969  Castilleja attenuata Lincoln Constance 1934-6-19 916 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  UC168996  Castilleja attenuata Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  UCR39807  Castilleja attenuata L. P. Janeway 1984-5-5 754 Humboldt Road shoulder of Hwy 299 c. 1.5 mi west of Willow Creek 250 Comment
  BLMAR71  Castilleja exserta Jennifer Anthony-Wheeler 1994-5-18 71 Humboldt Samoa/manilla dunes, growing in dune mat areas thru-out wetland 6 Comment
  SEINET4095680  Castilleja exserta O. M. Clark 1932-1 5341 Humboldt North Eureka. Comment
  HSC47062  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9199 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC78976  Castilleja exserta subsp. latifolia L. P. Janeway, Paul Wilson 1984-5-25 825 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  CAS-BOT-BC244878  Castilleja miniata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC100658  Castilleja parviflora Carl C. Marshall May 1885 57 Humboldt Hills generally. Comment
  HSC55670  Castilleja pruinosa Overton, Butler 1979-7-25 9874 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC99043  Castilleja pruinosa Cara Witte 2008-6-4 678 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  UC1011934  Castilleja pruinosa F. W. Pennell and J. P. Tracy 1940-7-7 26091 Humboldt w of Salyer (Grouse Mountain); Grouse Mountain 1127 Comment
  HSC44451  Ceanothus arcuatus Brad Klipfel 1975-5-30 653 Humboldt Horse Mtn. Comment
  HSC43194  Ceanothus incanus R. Sutherland 1975-5-13 9 .13575 Humboldt 579 Comment
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. Comment
  CAS-BOT-BC63685  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13180 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS42235  Ceanothus integerrimus W. L. Jepson 1932-7-24 16384 Humboldt near Fruitland (Mail Ridge) Comment
  HSC36674  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 3 .11775 Humboldt Along county rd. 290 Comment
  HSC36682  Ceanothus parryi R. Sutherland 1975-5-30 5 .30575 Humboldt N of Briceland, Redwood Creek near rd. 177 Comment
  HSC37084  Ceanothus parryi R. Sutherland 1975-5-30 4 .30575 Humboldt 320 Comment
  HSC43180  Ceanothus parryi R. Sutherland 1975-6-19 1 .19675 Humboldt Van Anken Creek at Mattole River Comment
  HSC59633  Ceanothus pumilus J. P. Smith, J. O. Sawyer 1974-6-2 7654 Humboldt Below summit of Horse Mtn. 1494 Comment
  UC1198017  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17527 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  CHSC19497  Ceanothus thyrsiflorus Norman Dennis 1965-6-19 124 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  UC1193280  Ceanothus thyrsiflorus R. H. Neuns 1950-10-17 142 Humboldt Bear Creek Road 6 mi n Shelter Cove; Quad. 28D4, Bear Creek Rd, n of Shelter Cove 609 Comment
  HSC98200  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 mi N of Hoopa along Hwy. 96 Comment
  JEPS42318  Ceanothus velutinus W. L. Jepson 1902-6-28 1949 Humboldt near Redwood Creek (High ridge, Acorn P.O. to Green Point Ranch) 1066 Comment
  RSA46890  Ceanothus velutinus var. laevigatus Doris K. Kildale 1926-4-25 1812 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC52410  Ceanothus velutinus var. velutinus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Ranges between Shelter Cove and Usal Comment
  CDA7086  Centaurea calcitrapa T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  UC1222953  Centaurea cyanus Joseph P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville and head of S. Yager Bridgeville Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  RSA34006  Centaurea melitensis J. Wendell Howe 1933-7-26 s.n. Humboldt Mad River near Blue Lake Comment
  RSA43683  Centaurium floribundum H. M. Pollard 1948-7-21 s.n. Humboldt Along Klamath River near Orleans. Comment
  UC719784  Centaurium muehlenbergii Rogers McVaugh 1941-8-3 6212 Humboldt ca 8 mi s Garberville; Richardson Grove State Park Comment
  POM225120  Centaurium muehlenbergii P. A. Munz 1936-8-9 14329 Humboldt Half a mile north of Humboldt-Mendocino county line, in Redwood Highway. Comment
  UC154023  Centunculus minimus J. P. Tracy 1903-8-9 1943 Humboldt immediate vicinity of Eureka 0 Comment
  UC429101  Cephalanthera austiniae P. E. Goddard 1906-6 693 Humboldt Blocksburg Comment
  CAS-BOT-BC384898  Cerastium arvense Doris K. Kildale 1927-5-15 3245 Humboldt Petrolia, Mattole River Comment
  UC162889  Cerastium arvense Mrs. M. H. Manning May 1902 Humboldt near Hupa Hupa Comment
  HSC79360  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Above Dead Man's gulch 175 Comment
  CAS-BOT-BC388225  Cerastium glomeratum Alice Eastwood 1907-4-21 15 Humboldt Port Trinidad Comment
  HSC47013  Cerastium glomeratum Sheila Logan 1978-4-7 2 Humboldt Samoa Sand Dunes, 1/4 mi. N of Coast Guard Station at N spit of Samoa Peninsula Comment
  HSC89494  Cerastium glomeratum P. A. Daly 1986-2-28 56 Humboldt Trinidad Head, along trail 61 Comment
  JEPS51348  Cerastium viride Mrs. M. H. Manning 1901-1 19 Humboldt near Hupa Comment
  CAS-BOT-BC179507  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Gravel slopes on west side of South Fork of Trinity River, 1 mile above its mouth. The Sandy Bar Swimming Hole 243 Comment
  UC1199058  Cercis occidentalis Joseph P. Tracy 1930-9-8 9176 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET200737  Cercocarpus ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit about 2 miles southwest of top of the mountain 1768 Comment
  CDA5747  Cestrum fasciculatum P. Haggard 1979-6-5 Humboldt John Sievert property, Redway. 0 Comment
  UC582765  Chaenactis douglasii var. douglasii Joseph P. Tracy 1932-7-12 10462 Humboldt head of Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  SEINET5334897  Chamaecyparis lawsoniana W. D. Billings 1940-6-25 1350 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  HSC32532  Chamaesyce serpyllifolia Thomas W. Nelson 1973-9-3 1130 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC166045  Chamerion angustifolium subsp. circumvagum L. R. Abrams 1916-7-18 6113 Humboldt Arcata to Trinidad, 18 mi along coast Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  HSC55091  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-7-31 11775 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC98016  Chamerion angustifolium subsp. circumvagum Cara Witte 2007-7-9 456 Humboldt Grouse Mtn.. FS Rd. 4N32. 1/4 mile S of intersection with 5N04 1466 Comment
  UC1122511  Chamerion angustifolium subsp. circumvagum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  JEPS39310  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1921-9-20 10654 Humboldt s Garberville; South Fork Eel River, Richardson Grove Comment
  RSA685760  Cheilanthes gracillima Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans. Comment
  HSC100932  Cheilanthes gracillima Miss Handy Jun 1886 337 Humboldt Rocks near Maple Cr. Comment
  UC1222586  Chenopodium ambrosioides Joseph P. Tracy 1950-9-22 19377 Humboldt near Slate Creek (8 mi below Orleans); Klamath River 121 Comment
  UC198570  Chenopodium pumilio Joseph P. Tracy 1916-9-5 4770 Humboldt 4 mi above mouth; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC17948  Chimaphila menziesii D. E. Anderson 1963-5-18 2449 Humboldt Near junction of New and Trinity Rivers Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  CAS-BOT-BC236918  Chloropyron maritimum subsp. palustre Joseph P. Tracy 1938-7-15 16064 Humboldt At Fields Landing, around Humboldt Bay 3 Comment
  CAS-BOT-BC30124  Chrysolepis chrysophylla Joseph P. Tracy 1933-8-30 13036 Humboldt Northern Coast Ranges. Grouse Mountain 1524 Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  JEPS49670  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1145089  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC284407  Cirsium arvense L. R. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzley Creek on Van Duzen River Comment
  UC1119170  Cirsium arvense H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quad. Comment
  CAS-BOT-BC284409  Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt 1 1/2 miles n. of Orick, Redwood Highway Comment
  RSA439196  Cirsium arvense M. B. Dunkle 1936-8-22 4859 Humboldt Williams Grove, Eel River 213 Comment
  HSC39168  Cirsium brevistylum D. E. Anderson, J. P. Smith 1971-6-28 1235 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC176304  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  OBI56358  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges. Nr berry Summit on Titlow Hill Rd, 3.9 mi S of hwy 299 Comment
  UC668206  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  CDA8376  Cirsium remotifolium David Juliano 2008-6-6 PDR# 1379441 Humboldt Friday Ridge Rd., 0 Comment
  UC91789  Cirsium remotifolium var. odontolepis W. W. Price 1890-7-3 Humboldt Comment
  RSA40411  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  JEPS43735  Clarkia amoena subsp. amoena W. L. Jepson 1936-8-18 17940 Humboldt Wildcat Ridge Comment
  CAS-BOT-BC160946  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 Humboldt Above terrace at Shelter Cove Comment
  CAS-BOT-BC160963  Clarkia amoena subsp. amoena Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  POM228379  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 671 Humboldt South side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  UC1198506  Clarkia concinna subsp. concinna Joseph P. Tracy 1911-7-11 3512 Humboldt Supply Creek Northern Coast Ranges, Hoopa Valley 304 Comment
  HSC38102  Clarkia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC172507  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1925-6-28 804 Humboldt Kneeland Prairie, bald hills 762 Comment
  CAS-BOT-BC172509  Clarkia purpurea subsp. quadrivulnera J. P. Tracy 1933-7-3 12634 Humboldt Trinity River at Willow Creek 152 Comment
  CAS-BOT-BC172390  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork of Trinity River, mountain slopes west of its mouth. 457 Comment
  CAS-BOT-BC172391  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt Hills west of the South Fork of the Trinity River near its mouth 640 Comment
  CAS-BOT-BC172392  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy; C. C. Harris 1942-6-22 1261 Humboldt In a field, 7 miles north and 5 miles east of willow Creek 165 Comment
  RSA297004  Clarkia purpurea subsp. viminea Lincoln Constance 1934-5-23 619 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC75444  Claytonia cordifolia J. O. Sawyer 1980-7-18 3601 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC67184  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5435 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC24076  Claytonia lanceolata J. O. Sawyer 1971-6-15 2385 Humboldt S of Trinity Summit Station 1829 Comment
  HSC96292  Claytonia parviflora subsp. parviflora J. Breton, A. Livingston 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC17681  Claytonia perfoliata S. R. Johnson 1965-3-28 24 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC161028  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-5-21 3188 Humboldt Eureka; Northern Coast Region Comment
  HSC78609  Claytonia rubra subsp. depressa L. P. Janeway, K. Berg, Paul Wilson 1985-1-19 1197 Humboldt N Spit of Humboldt Bay, BLM Wallflower Protection Area 5 Comment
  HSC70226  Claytonia rubra subsp. rubra M. A. Baker 1980-6-8 1888 Humboldt Near Buck Flat. 1554 Comment
  HSC99411  Claytonia rubra subsp. rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 60 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
  HSC32285  Claytonia saxosa D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5623 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 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
  SBBG1967  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  HSC17733  Claytonia sibirica E. W. Styskel 1963-5-16 31 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC95738  Claytonia sibirica Kevin Thomas 2004-3-18 5 Humboldt Near Clam Beach exit off Hwy. 101N, along old Hwy. 101, at end of Little River Rd. Comment
  SD88361  Claytonia sibirica D. F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville 91 Comment
  HSC15451  Clintonia andrewsiana E. W. Styskel 1963-5-19 52 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1197663  Clintonia andrewsiana Joseph P. Tracy 1901-8-1 1238 Humboldt e of Rohnerville 152 Comment
  UC1541328  Clintonia andrewsiana W. K. Parks 1932-8-24 1135 Humboldt 1 mi e of Grizzly Creek (Van Duzen River); Van Duzen River 152 Comment
  HSC98099  Clintonia uniflora Cara Witte 2007-6-27 367 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1/2 mile from spring. 1561 Comment
  JEPS26342  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  JEPS6293  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC66827  Collinsia greenei M. A. Baker 1980-7-11 2808 Humboldt Near Red Mtn. 1433 Comment
  UC1222824  Collinsia heterophylla Joseph P. Tracy 1950-6-15 18812 Humboldt at Huestis Rock on ne side of Ridge (Mail Ridge Trip) Huestis Rock 822 Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  UC582454  Collinsia linearis Joseph P. Tracy 1934-7-18 13418 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1238971  Collinsia linearis Freed W. Hoffman 1946-5-24 967 Humboldt Blue Lake to Willow Creek (North Coast Ranges, Trinity Forest); North Coast Ranges, Trinity Forest Comment
  HSC70376  Collinsia parviflora M. A. Baker 1980-6-7 1783 Humboldt Near Brush Mtn. 1128 Comment
  HSC48636  Collinsia parviflora Mark Flippo 1978-5-20 89 Humboldt USFS Rd. 8N10 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  POM20818  Collinsia sparsiflora var. bruceae Joseph P. Tracy 1916-5-2 4685 Humboldt Garden grown, at Eureka, from seed, my #4242 from lower slopes of Buck Mountain. 762 Comment
  HSC48398  Collinsia torreyi Brad Klipfel 1973-6-10 84 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS7054  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  UC1197852  Collomia grandiflora Joseph P. Tracy 1947-7-9 17829 Humboldt lower slopes Horse Mountain 1127 Comment
  HSC23477  Collomia heterophylla D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5061 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  UC60861  Collomia heterophylla Mrs. M. H. Manning April, 1901 Humboldt Hupa Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew Comment
  POM278763  Collomia heterophylla Lyman Benson 1928-7-12 475 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  HSC74404  Collomia tracyi Gail Newton 1980-6-28 745 Humboldt Near Mad River Butte. 1536 Comment
  HSC8636  Conium maculatum J. R. Lippincott 1967-7-16 12 Humboldt 1 mi S of Blue Lake on West End Rd. Comment
  UC1222613  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC65326  Convolvulus arvensis J. P. Smith 1973-5-26 6810 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1196462  Corallorhiza striata Joseph P. Tracy 1918-5-28 4935 Humboldt on slope below High Prairie (near Redwood Creek); Northern Coast Ranges 609 Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  HSC38284  Corethrogyne filaginifolia J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just W of the drag strip Comment
  SEINET7836966 Image available Corethrogyne filaginifolia J. B. Davy 1899-6-30 6185 Humboldt Near Ferndale Comment
  UC1196902  Cornus nuttallii Joseph P. Tracy 1934-8-24 13597 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC212175  Cornus sericea Doris K. Kildale 1925-6-27 769 Humboldt Yager Creek near mouth. Comment
  CAS-BOT-BC210454  Cornus sericea subsp. occidentalis M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  RSA24326  Cornus sessilis C. B. Wolf 1941-2-28 4048 Humboldt Junction of Willow Creek and its E. fork. 457 Comment
  RSA46902  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek. 152 Comment
  RSA0019462  Cornus sessilis H. M. Pollard 1948-7-27 s.n. Humboldt Mouth of Red Cap Creek near Orleans. Comment
  UC1197936  Corylus californica Joseph P. Tracy 1949-7-19 18375 Humboldt at Friday Camp 1219 Comment
  HSC56977  Corylus cornuta subsp. californica Overton, Butler 1979-7-23 9512 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA33407  Corylus cornuta var. californica Doris K. Kildale 1927-3-25 3004 Humboldt Humboldt Hill Comment
  SEINET12031408  Corylus cornuta var. californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -282 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC77512  Crassula connata K. Berg 1984-4-8 520 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  RSA89624  Crataegus monogyna E. K. Balls, Percy C. Everett 1953-10-13 18652 Humboldt 1 mile N of Arcata along Hwy 101. 6 Comment
  JEPS89545  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy. 101 near mouth of Tom Creek (Big Lagoon); N. Coast Ranges, Big Lagoon 3 Comment
  CAS-BOT-BC291487  Crepis capillaris L. R. Abrams 1927-8-31 12055 Humboldt Marshes between Arcata and Eureka along highway Comment
  CAS-BOT-BC291489  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3396 Humboldt Just south of Trinidad Comment
  UC538048  Crepis occidentalis subsp. pumila E. B. Babcock 1932-6-23 402 Humboldt near Bridgeport; Art Renfroe's place Comment
  HSC41266  Crepis pleurocarpa Brad Klipfel 1974-7-23 459 Humboldt Horse Mountain Comment
  HSC78648  Crepis pleurocarpa D. K. Imper 1982-6-29 1479 Humboldt Near Lassics Lookout 1584 Comment
  HSC98096  Crepis pleurocarpa Cara Witte 2007-6-20 310 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC290910  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto [Horse Linto] Creek 152 Comment
  UCD130981  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley. 106 Comment
  HSC99133  Cryptantha affinis Cara Witte 2007-5-29 139 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  UC667006  Cryptantha affinis Joseph P. Tracy 1939-7-9 16335 Humboldt Snow Camp 1402 Comment
  HSC57211  Cryptantha torreyana Griswold, Butler 1979-7-12 7246 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1239648  Cryptantha torreyana Joseph P. Tracy 1930-7-23 9121 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  SEINET10569434  Cupressus Mary Susan Taylor 1990-8-22 Taylor 6086 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  RSA144007  Cuscuta campestris P. H. Raven 1961-8-22 16577 Humboldt Chileno Valley Comment
  HSC63843  Cuscuta occidentalis M. Baker 1979-6-26 913 Humboldt Comment
  HSC6400  Cuscuta salina J. Wendell Howe 1934-7-18 988 Humboldt Humboldt Bay Comment
  HSC3644  Cynoglossum grande Jack Rockwell 1962-5-4 47 Humboldt E side road, 0.5 mi. from Kneeland 457 Comment
  UCD119159  Cynoglossum grande D. W. Cooper 1971-5-11 s.n. Humboldt On Charles Moore's ranch on Kneeland Ridge, ca. 10 miles east of Eureka. Comment
  SEINET12280946  Cynoglossum grande J. P. Tracy 1950-1 18647 Humboldt ca 5 mi N of Bridgeville, on the road to the South Yager Valley Comment
  CAS-BOT-BC190381  Cynosurus echinatus Kenneth Clark 1980-3-22 523 Humboldt Above Dead Man's Gulch. 137 Comment
  UC303019  Cyperus bipartitus Joseph P. Tracy 1926-8-12 7766 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  RSA275286  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 4990 Humboldt Mad River above the Fish Hatchery. Comment
  POM89790  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  HSC54855  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-25 10750 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC69530  Dactylis glomerata R. Kalal 1980-6-8 2 Humboldt Pump Station #1 14 Comment
  HSC74563  Dactylis glomerata M. A. Baker 1980-5-17 1244 Humboldt Near Le Perron Peak 1066 Comment
  CDA31640  Danthonia californica T. R. Haig 1960-6-19 Humboldt 2 miles south of Kneeland 0 Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  HSC58114  Danthonia californica G. L. Clifton, Griswold 1979-8-1 12073 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC72622  Danthonia californica J. P. Smith 1977-7-3 9231 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC526686  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie Northern Coast Ranges 792 Comment
  UCD60692  Danthonia californica var. americana A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3474 Humboldt 4 miles north of Bridgeville. Comment
  JEPS49583  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  JEPS49591  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  RSA520566  Datisca glomerata M. Hanson 1990-5-22 84 Humboldt In the Trinity River, 75 meters E of the Hwy 96 bridge N of Hoopa. Comment
  UC505103  Datisca glomerata Joseph P. Tracy 1932-9-18 10805 Humboldt Blue Slide on Van Duzen River Blue Slide; Northern Coast Ranges, Van Duzen River, Blue Slide 91 Comment
  UCSB22847  Datisca glomerata Constance, Lincoln 1934-6-11 Humboldt Trail along E bank of S fork of Eel River; N Dyerville Flat Comment
  JEPS14240  Daucus carota Joseph P. Tracy 1932-9-16 10796 Humboldt near the mouth Mad R. 30 Comment
  HSC12418  Daucus carota D. Santana 1970-10-15 72 Humboldt 11th and A St. in open vacant lot Comment
  HSC37925  Daucus pusillus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC1197348  Daucus pusillus J. P. Tracy 1905-6-11 2192 Humboldt Bucksport 0 Comment
  UC1196322  Delphinium decorum subsp. decorum J. P. Tracy 1904-5-1 2044 Humboldt bluff back of Bucksport; immediate vicinity of Eureka 0 Comment
  UC502927  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt moist places at head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC37654  Delphinium decorum subsp. tracyi Robert M. Specht, John Rehling 1976-4-25 395 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  CAS-BOT-BC10313  Delphinium hesperium LeRoy Abrams 1916-7-11 6000 Humboldt Between Blacksberg and Bridgeville Comment
  CAS-BOT-BC10316  Delphinium hesperium Doris K. Kildale 1927-7-1 3620 Humboldt Alton Hill 30 Comment
  CAS-BOT-BC10318  Delphinium hesperium D. E. Breedlove 1961-7-4 s.n. Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  RSA44425  Delphinium hesperium E. K. Balls, Lee W. Lenz 1956-6-12 21665 Humboldt 9.1 miles NE from Blue Lake along Hwy 299, Arcata to Willow Creek. Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  HSC32935  Delphinium nuttallianum Thomas W. Nelson 1973-5-30 972 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC46069  Delphinium trolliifolium G. N. Bos 1965-5-15 276 Humboldt Berry Summit near Hwy. 299 793 Comment
  UCR32113  Delphinium trolliifolium David J. Keil 1983-7-2 17344 Humboldt 21 miles south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1300 Comment
  CAS-BOT-BC121963  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  UC160932  Delphinium trolliifolium Joseph P. Tracy 1906-4-8 2400 Humboldt s side of bluff near Singley's Ferry; Northern Coast Ranges, Table Bluff 91 Comment
  HSC35449  Deschampsia cespitosa J. D. Ackerman 1975-8-2 607 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  UCD61383  Deschampsia cespitosa Peter Haggard 1996-7-8 Humboldt North Coast Railroad right-of-way, Eureka. Comment
  CHSC31326  Deschampsia cespitosa subsp. holciformis Mark Stopher 1980-6-4 94 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC71726  Deschampsia elongata M. A. Baker 1980-6-26 2463 Humboldt Near Sims Creek 610 Comment
  HSC41656  Descurainia sophia Karen Lu 1977-10-30 Humboldt Lanphere Rd., Arcata, 0.25 mi. E of the bridge over Mad River Slough Comment
  CDA24607  Dicentra formosa C. Sinkiewicz 2002-4-17 Humboldt McKinnleyville, Dows Prairie. Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  UC1362291  Dicentra formosa Kingsley R. Stern 1964-6-13 2107 Humboldt ca 2 mi s Miranda (on e side of U.S. Highway 101, ca 50 yds n of Fish Creek) Comment
  RSA433572  Dicentra formosa subsp. formosa Christopher Davidson 1973-5-29 2200 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  SEINET200952 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1906-7-1 2517 Humboldt Eureka 61 Comment
  RSA756869  Dichelostemma capitatum subsp. capitatum Barbara Ertter, Thomas J. Delendick 1987-5-16 6927 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  SEINET10872226  Dichelostemma ida-maia Mary Merello 1993-6-19 Merello 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  CAS-BOT-BC501017  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie - Bald Hills 457 Comment
  CAS-BOT-BC501019  Dichelostemma ida-maia L. R. Abrams 1918-6-16 7135 Humboldt Willow Creek Comment
  POM208998  Dichelostemma ida-maia Lincoln Constance 1934-5-23 604 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  RSA12440  Dichelostemma ida-maia Carl B. Wolf 1934-7-2 5853 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  UC1198172  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16233 Humboldt near Weitchpec (along Trinity River); Trinity River 121 Comment
  SEINET3885767  Dichelostemma pulchellum Mary Merello, H. H. Schimdt; L. Woodruff 1993-6-19 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest.; 0 90 Comment
  UC198610  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  UCD64093  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC150353  Diplacus aurantiacus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  SEINET4170370  Disporum smithii Unknown 1933-5-21 12209 Humboldt McClellan Mountain 671 Comment
  UC666968  Disporum smithii Joseph P. Tracy 1933-5-21 12209 Humboldt McClellan Mountain 670 Comment
  CAS-BOT-BC208657  Distichlis spicata L. R. Abrams 1922-6-25 8250 Humboldt Humboldt Bay east of Arcata Comment
  UC34066  Distichlis spicata J. P. Tracy 1900-7-4 869 Humboldt Samoa Comment
  CAS-BOT-BC208659  Distichlis spicata Malcom A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Salt marshes around Fields Landing Comment
  UC249505  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC17909  Dodecatheon hendersonii D. E. Anderson 1965-4-24 3545 Humboldt Ca. 2 mi. E of Berry Summit along Hwy. 299 Comment
  SEINET201053 Image available Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt Trinity Summit; ridges East of Corral Prarie. 1829 Comment
  CAS-BOT-BC401537  Drosera rotundifolia Doris K. Kildale 1929-8-5 8772 Humboldt Big Lagoon Comment
  HSC103110  Drosera rotundifolia M. Mesler 2010-7-15 833 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  HSC31442  Drymocallis lactea var. lactea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5560 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  CAS-BOT-BC70874  Dryopteris arguta Ira L. Wiggins 1932-6-18 5872 Humboldt mouth of Little River Comment
  CAS-BOT-BC70871  Dryopteris arguta Doris K. Kildale 1926-7-22 2415 Humboldt near Canyon Park Comment
  UCSB30620  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  SBBG56296  Dryopteris oregana L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  HSC91611  Dudleya farinosa E. Mackey 1986-6-16 Humboldt Patricks Point State Park Comment
  CAS-BOT-BC197063  Echinochloa crus-galli Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC100404  Echinospermum Carl C. Marshall Jun 1888 3 Humboldt Pilot Creek. Comment
  UC213005  Eleocharis bella Joseph P. Tracy 1920-8-15 5373 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 152 Comment
  CHSC68427  Eleocharis macrostachya L. P. Janeway 1983-9-24 701 Humboldt 10-30 ft from water line of Big Lagoon, near southwest corner of the county campground. 3 Comment
  UC303024  Eleocharis parishii Joseph P. Tracy 1926-8-12 7767 Humboldt near S fork Trinity River Valley; Northern Coast Ranges 182 Comment
  HSC58630  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11484 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58670  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12106 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC74697  Elymus glaucus Gail Newton 1981-8-7 2465 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC76550  Elymus glaucus Denis Kearns 1981-7-22 312 Humboldt Near Whiteys Peak. 1487 Comment
  UC38194  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5661 a Humboldt Hoopa Mt. Comment
  UCD61884  Elymus glaucus P. B. Kennedy 1923-8-2 Humboldt Near top of grade - Bluff Creek to Arcata. Comment
  SEINET10930717  Elymus glaucus Joseph P. Tracy 1912-6-9 Tracy 3659 Humboldt Alton. 30 Comment
  UCD62351  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3484 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
  HSC98130  Elymus hispidus Cara Witte 2007-6-28 387 Humboldt Forest Service Road 5N10. 1293 Comment
  SEINET10564727  Elymus multisetus Joseph P. Tracy 1912-7-26 Tracy 3839 Humboldt Common on dry slopes, Kneeland Prairie. 762 Comment
  RSA10129  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek. 762 Comment
  HSC54564  Epilobium brachycarpum Overton, Butler 1979-7-24 9583 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC505111  Epilobium brachycarpum Joseph P. Tracy 1932-5-22 10112 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  RSA275298  Epilobium canum subsp. latifolium Thomas W. Nelson 1977-8-6 3722 Humboldt Lassics: serpentine ridge between Blanket Creek and Bear Creek just below Blanket Rock. Unsurveyed section east of T2S, R5E, Sec. 25 1494 Comment
  HSC55011  Epilobium ciliatum G. L. Clifton 1979-7-31 11379 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC48852  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-7-15 211 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET9075566 Image available Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-1 35201 Humboldt Samoa Peninsula 0 Comment
  UC1198492  Epilobium densiflorum Joseph P. Tracy 1938-7-5 16003 1/2 Humboldt wet place in flat by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  HSC67190  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5426 Humboldt Along NE side of Red Mtn. 1433 Comment
  JEPS31474  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 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
  UC549763  Equisetum hyemale subsp. affine Joseph P. Tracy 1933-6-6 12506 Humboldt Trinidad; Northern Coast Region 60 Comment
  UC667934  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt near Grizzly Creek Van Duzen River 91 Comment
  HSC30351  Equisetum telmateia subsp. braunii Dale R. Gradek 1974-5-28 93 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  HSC79438  Equisetum telmateia subsp. braunii Kenneth Clark 1980-6-14 699 Humboldt Shelter Cove, W slope above Dead Man's Gulch 91 Comment
  HSC886  Equisetum telmateia subsp. braunii Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  JEPS25329  Equisetum telmateia subsp. braunii Paul C. Hutchison 1961-3-3 885 Humboldt ca. 1/2 mi s Benbow (S Fork Eel River, along U.S. Hwy. 101) Comment
  UC1187363  Equisetum telmateia subsp. braunii P. C. Hutchison 1961-3-3 885 Humboldt 1/2 ,i s Benbow (Hwy. 101, S. Fork Eel River) Comment
  UC526901  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC299906  Erechtites minimus Henry M. Pollard 1948-7-21 s.n. Humboldt Near Ferrian Ranch, Orleans Comment
  CDA5471  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  CHSC102880  Erica lusitanica Peter F. Zika 2008-10-19 24226 Humboldt North Coast. Thickets on w-facing banks above highway, E side of Route 101, near Exit 731 for Seawood Drive. 100 Comment
  CAS-BOT-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  UC205183  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit (open places in shasta fir belt) 1889 Comment
  UC1792474  Erigeron Thomas W. Nelson, Sydney Carothers 2004-6-18 9249 Humboldt Along Swayback Ridge Road which branches of Forest Service Rooad 1N08 ca 1/4 mil past gate. 1356 Comment
  HSC98024  Erigeron aliceae Cara Witte 2007-7-11 509 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  UC1223012  Erigeron annuus Joseph P. Tracy 1949-10-9 18585 Humboldt Eureka Eureka (weed in garden) Comment
  UCSC000772  Erigeron canadensis H. L. Person 1932-8-15 s.n. Humboldt Eureka, Korbel Comment
  CAS-BOT-BC296113  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS21937  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  UC1223141  Erigeron foliosus var. confinis Joseph P. Tracy 1947-7-5 17785 Humboldt Ridge top, 1 mi w Mud Springs; Trinity Summit Comment
  UC581723  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge Comment
  RSA39093  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park. Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  UC581715  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  RSA0010343  Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole. 1585 Comment
  SD53196  Erigeron philadelphicus Darley F. Howe 1962-5-21 3297 Humboldt 16 miles north of Garberville on Highway 101. 60 Comment
  UC202679  Erigeron philadelphicus var. philadelphicus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  JEPS867  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges, Klamath River 243 Comment
  UC176758  Erigeron strigosus var. strigosus Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5712 Humboldt Hoopa Valley Comment
  CAS-BOT-BC224260  Eriodictyon californicum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville Comment
  HSC12218  Eriodictyon californicum Gary J. Stebbins 1970-4-27 73 Humboldt Along Hwy. 299, 4.5 mi. E of Willow Creek Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  RSA256584  Eriodictyon californicum D. E. Anderson 1972-6-20 5737 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC102097  Eriogonum compositum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1000 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CDA18207  Eriogonum latifolium G. D. Barbe, T. C. Fuller 1974-6-17 1833 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sea Court, Shelter Cove. 60 Comment
  RSA21010  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 8 Comment
  SBBG1531  Eriogonum latifolium H. and M. Dearing 1939-5-25 3438 c Humboldt near Samoa Comment
  UC1198149  Eriogonum latifolium Joseph P. Tracy 1933-8-25 12998 Humboldt Centerville 6 Comment
  UCR122372  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC176709  Eriogonum luteolum var. luteolum Joseph P. Tracy 1912-8-3 3968 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  UC1198137  Eriogonum nudum var. nudum Joseph P. Tracy 1917-9-2 4844 Humboldt Grouse Mountain Nothern Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC261721  Eriogonum nudum var. oblongifolium A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC269863  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 336 Humboldt Hoopa Comment
  RSA393303  Eriogonum nudum var. pubiflorum H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  BLMAR181  Eriophyllum lanatum var. achilleoides Donald Hazlett 1994-6-7 181 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC57128  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-25 9895 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC169040  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1912-7-26 3837 1/2 Humboldt Kneeland Prairie Northern Coast ranges, Kneeland Prairie 762 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
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  CAS-BOT-BC301686  Eriophyllum lanatum var. lanceolatum Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet Ranch Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  HSC79415  Erodium cicutarium Kenneth Clark 1980-3-1 514 Humboldt Hillslope due N from Dead Man's Gulch, near access trail 122 Comment
  CAS-BOT-BC41574  Erysimum capitatum S. K. Harris 1936-6-20 3493 Humboldt Above Van Duzen River about 3 miles west of Bridgeville. Comment
  HSC99491  Erysimum capitatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 150 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
  HSC60055  Erysimum capitatum var. capitatum M. A. Baker 1978-5-6 493 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  RSA0008582  Erysimum menziesii Jennifer Wheeler 2010-5-11 573 Humboldt Samoa Dunes Endangered Plant Protection Area. 0 Comment
  HSC57645  Erysimum perenne G. L. Clifton, Terry Griswold 1979-7-25 10812 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET8229973  Erythranthe nasuta Joseph P. Tracy 1920-5-18 5379 Humboldt South Fork Eel River; from South Fork to Scotia; 4 miles above Dyerville. 61 Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  HSC15500  Erythronium oregonum subsp. leucandrum D. E. Anderson 1963-3-23 2400 Humboldt 2 mi. N of Beaver School Comment
  JEPS109992  Erythronium revolutum D. W. Taylor 2004-4-15 19055 Humboldt Ba;d Mountain; county road ca 1 air mile E of mapped summit; Lord Ellis Summit. Comment
  RSA168935  Erythronium revolutum Joseph P. Tracy 1950-5-7 18650 Humboldt Near the Redwood House but on Yager Slope, head of South Yager Comment
  UC159113  Erythronium revolutum J. P. Tracy May, 1911 Humboldt Kneeland Prairie Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  CAS-BOT-BC403040  Eschscholzia californica Carl W. Simpson 1941-5-8 19 Humboldt Garberville Comment
  HSC73143  Eschscholzia californica M. A. Baker 1980-5-18 1331 Humboldt Near Black Mtn. 792 Comment
  HSC26901  Eschscholzia californica Thomas W. Nelson 1973-7-27 1103 Humboldt SW of the airstrip at Kneeland Comment
  HSC58766  Eucephalus ledophyllus Terry Griswold 1979-7-26 10220 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  POM161488  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  RSA93311  Eucephalus tomentellus R. S. Woglum 1938-8-28 1974 Humboldt Patrick Creek Comment
  UC562616  Euchiton gymnocephalus Joseph P. Tracy 1936-8-23 15164 Humboldt Carlotta 30 Comment
  UC562473  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  RSA44413  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  UC1198972  Euphorbia crenulata Joseph P. Tracy 1925-5-17 6986 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC7986  Euphorbia helioscopia M. C. Hartman 1963-3-22 7 Humboldt Near farmhouse on side road, 1/4 mi. W of Alliance Rd. Comment
  NY263155  Euphorbia occidentalis V. K. Chesnut 1888-7-22 Humboldt Hy-Am-Pum (spelling?) Comment
  UC54897  Euphorbia spathulata Chesnut and Drew 1888-7-23 Humboldt Hyampon 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
  JEPS32360  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt opposite mouth of, at Lack Pond, (in Trinity R. Valley opp. mouth of Willow Cr.) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  OBI5245  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  UCD98912  Fallopia sachalinensis H. E. Parks; S. T. Parks 1952-6-1 24448 Humboldt South of the Elk River Bridge on Highway 10. Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  HSC65452  Festuca californica J. P. Smith, J. O. Sawyer 1973-5-12 6697 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC94183  Festuca californica Ottoson 1999-7-13 Humboldt Above Showers Pass towards Kneeland from Hwy. 36. Soldiers Grove. Eaton Rough Mtn Area. Comment
  UC526871  Festuca californica Joseph P. Tracy 1933-6-13 12603 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  HSC102226  Festuca idahoensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1146 Humboldt Andy's Camp 1564 Comment
  POM112463  Festuca idahoensis H. P. Chandler 1901-06 1366 Humboldt Hupa Indian Reservation. 152 Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC53596  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt near Harris Comment
  UC70910  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5472 Humboldt near Elk Prairie Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  CAS-BOT-BC278966  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  UC1145206  Festuca subuliflora Joseph P. Tracy 1948-6-13 18041 Humboldt 7 mi nw Blocksburg; Larrabee Creek 304 Comment
  UCD66489  Festuca subuliflora R. Tofsrud 1949-7-1 Humboldt On road from Scotia to Capetown. Comment
  UC249608  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC40975  Fragaria X ananassa Linda M. Barker 1976-6-14 1590 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC453520  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  CAS-BOT-BC453521  Fragaria chiloensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC103976  Fragaria chiloensis C. Reynolds 2015-4-12 35 Humboldt Along Freshwater Beach, near the Kuchel Visitor Center 1 Comment
  POM231291  Fragaria chiloensis D. D. Keck, Jens Clausen 1935-6-16 3390 Humboldt Mouth of Little River. Comment
  RSA296728  Fragaria chiloensis J. P. Smith 1977-6-30 9205 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC41846  Fragaria vesca N. G. Sugihara 1977-4-23 12 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  UC183556  Fragaria vesca Joseph P. Tracy 1913-6-25 4340 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC45262  Fragaria virginiana M. Alcasas 1978-6-3 120 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  HSC12313  Frangula purshiana Wendell Wood 1970-9-22 296 Humboldt McKinleyville, E end of Chateau Way 107 Comment
  HSC60320  Frangula purshiana J. P. Smith 1971-10-9 5016 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  SEINET200389  Frasera speciosa Joseph P. Tracy 1932-7-20 10731 Humboldt Trinity Summit , 1585 Comment
  RSA46884  Fraxinus latifolia Doris K. Kildale 1926-4-18 1783 Humboldt Bridgeville on road to McClellan Mt. Comment
  HSC38259  Fritillaria affinis Thomas W. Nelson 1976-4-3 2285 Humboldt Hwy 36 at east end of Swain's Flat Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  UC176063  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3938 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC53906  Galium aparine Griswold, Butler 1979-7-11 6913 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC26464  Galium aparine T. O. Osborne 1970-5-17 17 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  UC1143099  Galium divaricatum H. S. Yates 1936-6-23 5876 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  UC1586881  Galium muricatum Juha Pykala and D. H. Norris 1987-6-5 1357 Humboldt e Maple Creek (se of Snow Camp Mt., upper course of creek); Redwood Creek 1100 Comment
  JEPS21476  Galium muricatum Francia Chisaki and Gene B. Newcomb 1958-6-23 1164 Humboldt on road to Shelter Cove 4 mi e of its junction with road to Ettersburg; on road to Shelter Cove 579 Comment
  JEPS52823  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3852 Humboldt 1/2 mi e Dinsmores (on Hwy 36) 731 Comment
  UC1196102  Galium parisiense Joseph P. Tracy 1916-6-19 4719 Humboldt at Forks of Dobby Creek Northern Coast Ranges 182 Comment
  BLMAR206  Galium parisiense Jennifer Anthony-Wheeler 1996-7-9 206 Humboldt Pilots ridge., growing in warm, dry, rocky soil in understroy in mixed hardwood forest 1280 Comment
  HSC67841  Galium parisiense J. P. Smith 1971-10-9 5029 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC70963  Galium porrigens Gail Newton 1980-7-15 1585 Humboldt Near Sims Mtn. 1311 Comment
  UC175593  Galium porrigens Joseph P. Tracy 1912-7-21 3767 Humboldt Alton Northern Coast Region 30 Comment
  UC602511  Galium porrigens Joseph P. Tracy 1926-4-11 7406 B Humboldt Bridgeville 198 Comment
  UC602522  Galium porrigens Joseph P. Tracy 1925-7-12 7188 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA0021851  Galium triflorum T. Gertrude Williamson 1924-7-10 s.n. Humboldt Arcata. Comment
  UC1023846  Galium triflorum Milo S. Baker 1947-8-10 11903 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit Comment
  HSC26353  Gamochaeta ustulata T. O. Osborne 1970-9-16 54 Humboldt Trinidad Bay, Prisoner Rock Comment
  CAS-BOT-BC188542  Garrya elliptica Doris K. Kildale 1929-3-19 7027 Humboldt 7 miles from Essex -- top of Liscom Hill Comment
  HSC8386  Garrya elliptica L. Lankow 1968-11-17 Humboldt Patrick's Point State Park Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC47959  Garrya fremontii Brad Klipfel 1975-5-24 650 Humboldt Horse Mtn. Comment
  CDA38572  Garrya fremontii T. C. Fuller, T. Gallion 1959-7-23 2833 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  UCSB72514  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  UC1585409  Gaultheria shallon R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 32 Humboldt w of Hoopa (just e of Pine Ridge Summit, Bair Road); Bair Road 970 Comment
  UC419064  Gaultheria shallon Joseph P. Tracy, H. E. Parks 1930-9-15 766 Humboldt Kneeland Bald Hills, Lawrence Creek Lawrence Creek; Kneeland Bald Hills, Lawrence Creek Comment
  UC535770  Gaultheria shallon Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  CDA38830  Gaultheria shallon T. R. Haig 1960-6-15 4578 Humboldt 8 miles north of Trinidad. 0 Comment
  SEINET11991660  Gaultheria shallon Unknown 1977-1 s.n. Humboldt S end of Patrick's Point State Park, ca 0.2 mi W of Hwy 101 and 5 mi N of Trinidad 61 Comment
  UC1196966  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12914 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC162343  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1911-7-10 3491 Humboldt Willow Creek Northern Coast Ranges, valley of Trinity River (river bar at mouth) 152 Comment
  JEPS27598  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC505122  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC14652  Genista monspessulana R. J. Vernimen 1963-2-26 7 Humboldt Sunnybrae in canyon parallel to Shirley Blvd. and ending at Beverly Dr. Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  UC154164  Gentiana affinis var. ovata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6199 Humboldt near Ferndale; Russ Ranch Comment
  RSA13517  Gentiana newberryi H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  HSC75286  Gentiana plurisetosa J. O. Sawyer, D. A. Thornburgh 1980-9-9 4082 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC562302  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UCSB26680  Gentiana sceptrum Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon; north of Trinidad 1 Comment
  UC668046  Geranium carolinianum Joseph P. Tracy 1933-7-9 12643 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS61425  Geranium dissectum Mrs. M. H. Manning Jun 1902 Humboldt Hupa Comment
  UC169880  Geranium oreganum Joseph P. Tracy Jun 1901 1272 Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  UC1198722  Geum macrophyllum Joseph P. Tracy 1936-8-7 15086 Humboldt head of Little Hors-Linto Creek, Trinity Summit Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  HSC73561  Gilia capitata Gail Newton 1980-7-14 1499 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC35705  Gilia capitata subsp. capitata Thomas W. Nelson, B. Reinhardt 1975-7-30 2121 Humboldt Beside private road to Pilot Rock Comment
  RSA742109  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast: about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino. 30 Comment
  UCR202414  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast, about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino 30 Comment
  CAS-BOT-BC225469  Gilia millefoliata Bolemanson 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC225475  Gilia millefoliata Lewis S. Rose 1972-6-5 72004 Humboldt Samoa 3 Comment
  UC1051593  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  JEPS79894  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  UC1197904  Gilia tricolor subsp. tricolor Joseph P. Tracy 1932-5-1 9857 Humboldt Redway 182 Comment
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  JEPS37565  Glebionis segetum W. L. Jepson and W. W. Mott 1903-6 2225 Humboldt bluff tops overlooking sea at Caspar 18 Comment
  UC162686  Glechoma hederacea Joseph P. Tracy 1911-7-7 3382 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC14201  Glechoma hederacea D. W. Snell 1964-4-25 55 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  SD39903  Glehnia littoralis Edith A. Purer 1932-7-27 4151 Humboldt Near Samoa Comment
  HSC21497  Glehnia littoralis subsp. leiocarpa S. J. Hawks 1965-5-14 62 Humboldt Clam Beach Comment
  RSA246750  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-7 35218 Humboldt Samoa Peninsula. 3 Comment
  SEINET200364 Image available Glyceria elata J. P. Tracy 2770 Humboldt Valley of Van Duzen River; opposite Buck Mtn 780 Comment
  UC187282  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  POM126119  Glyceria fluitans Joseph P. Tracy 1924-8-3 6749 Humboldt Stone Lagoon Comment
  HSC99053  Glyceria striata Cara Witte 2008-7-25 931 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  UC552669  Glyceria striata Joseph P. Tracy 1935-7-25 14251 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC302533  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Trinity Summit. Open places at Corral Prairie 1584 Comment
  HSC39773  Gnaphalium palustre Peter Sorensen 1976-8-16 Humboldt Humboldt Bay: Woodley Island Comment
  HSC68038  Gnaphalium palustre J. P. Smith 1976-10-30 8995 Humboldt Mad River, E of Essex Lane exit. Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  UC1196434  Goodyera oblongifolia Joseph P. Tracy 1949-8-7 18447 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  CAS-BOT-BC304733  Grindelia hirsutula Carl B. Wolf 1927-8-22 783 Humboldt Big Lagoon Comment
  CAS-BOT-BC304763  Grindelia hirsutula C. L. Hitchcock; J. S. Martin 1939-7-14 5437 Humboldt At Shelter Cove Comment
  HSC79172  Grindelia hirsutula C. K. Geldin-Meyers 1985-8-3 100 Humboldt Mosley Is., W end of Cannibal Is. Rd., mouth of the Eel River 3 Comment
  UC1347201  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt salt marsh bordering Humboldt Bay at Arcata Arcata (region of type locality) Comment
  UC199436  Grindelia hirsutula Joseph P. Tracy 1938-7-15 16075 Humboldt Mouth of Eel River 3 Comment
  UC204829  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt near Garberville (in dry field) 121 Comment
  SEINET193102  Grindelia hirsutula var. davyi Y. W. Winblad 1941-6-24 Humboldt Between Garberville and Hartsook Comment
  OBI37801  Grindelia stricta var. platyphylla David J. Keil 1983-7-1 17281 Humboldt Ca. 7 mi W of Honeydew along Mattole rd Comment
  UCD132571  Grindelia stricta var. stricta Gordon Leppig 1998-8-6 994 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike. 2 Comment
  HSC104080  Hackelia bella S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, off Rd. 1S11, above Mule Slide Comment
  JEPS79901  Hackelia setosa Joseph P. Tracy 1937-7-24 15510 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  HSC102116  Hastingsia alba M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1020 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UCD128250  Hedera helix Linda M. Barker 1976-9-3 1687 Humboldt 3 miles west of Arcata. Comment
  JEPS35428  Helenium bigelovii H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mt. Comment
  OBI16347  Helenium bigelovii Joseph P. Tracy 1950-7-16 11686 Humboldt Parks Place, 2 mi N of Trinidad Comment
  UC180187  Helenium bigelovii Joseph P. Tracy 1914-7-4 4540 Humboldt at Murphy Ranch, High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC630520  Helenium bolanderi H. E. and S. T. Parks 1937-6-1 5937 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  HSC35869  Helenium bolanderi Thomas W. Nelson, James Nelson 1975-8-5 2125 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  JEPS28965  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt n slope Buck Mountain Comment
  UC180194  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1906-7-4 2530 Humboldt Hydesville 60 Comment
  RSA453722  Heracleum maximum B. C. Templeton 1964-6-13 10181 Humboldt Along old 101 Highway to Trinidad Comment
  SEINET10460656  Heterocodon rariflorum Tracy TRACY 2199 Humboldt EUREKA Comment
  CDA31699  Heterotheca oregona M. K. Beyers, I. Shepardson 2009-9-13 244 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  RSA15557  Heterotheca oregona var. rudis C. B. Wolf 1927-8-30 1228 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
  SEINET3166724  Heterotheca oregona var. rudis Unknown 1986-8-18 8531 Humboldt Garberville. Gravel bar of S fork of Eel River near U.S.-101, at Bear Canyon Rd. Comment
  UC1222391  Heuchera merriamii Joseph P. Tracy July 1935 14172 Humboldt summit near Rangers Lookout at head of Croghan Hole; Trinity Summit 1828 Comment
  CAS-BOT-BC312387  Hieracium albiflorum Ira L. Wiggins 1930-7-22 4691 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UCD133133  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC312389  Hieracium albiflorum Doris K. Kildale 1925-7-5 1022 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC57940  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11607 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58358  Hieracium greenei Overton, Butler 1979-8-2 12704 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC316004  Hieracium nudicaule Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie, Trinity Summit 1584 Comment
  UC582420  Hieracium scouleri Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  RSA156091  Hierochloe occidentalis W. A. Silveus 1938-7-9 2960 Humboldt Dyerville. Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  HSC10133  Holcus lanatus Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  RSA44462  Holcus lanatus Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  HSC57957  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11651 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC10160  Hordeum brachyantherum L. M. Malloy 1965-5-19 41 Humboldt Arcata, between Hwy. 101 and oxydation pond Comment
  HSC38770  Hordeum brachyantherum J. D. Ackerman 1975-6-10 463 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge Rd. intersection. S of Manila. Near Railroad tracks Comment
  HSC10203  Hordeum murinum subsp. leporinum L. M. Malloy 1965-4-23 45 Humboldt Samoa 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  UC161487  Horkelia californica Joseph P. Tracy 1911-7-12 3526 Humboldt edge of field Northern Coast Ranges, Blue Lake 60 Comment
  HSC79333  Horkelia tridentata var. flavescens D. H. Norris 1970-5-20 12177 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  HSC96270  Horkelia tridentata var. flavescens Wanda Naylor, Laurel Goldsmith 2005-6-24 15 Humboldt S of Grouse Mountain on NF1 1595 Comment
  HSC62699  Hydrocotyle ranunculoides Michelle Stevens 1979-5-18 118 Humboldt Ponds across from Clam Beach 0 Comment
  HSC64261  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  UC275343  Hypericum anagalloides Joseph P. Tracy with H. E. Parks 1924-8-3 6757 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  UC1198410  Hypericum anagalloides Joseph P. Tracy 1913-6-1 4076 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1198406  Hypericum formosum var. scouleri Joseph P. Tracy 1932-9-16 10799 Humboldt Dow's Prairie Northern Coast Ranges, Dow's Prairie 60 Comment
  POM203702  Hypericum formosum var. scouleri I. L. Wiggins 1932-7-18 5886 Humboldt Boggy meadow between Arcata and Bayside Comment
  OBI37799  Hypericum perforatum David J. Keil 1983-7-1 17279 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats Rd Comment
  UC902119  Hypericum perforatum Joseph P. Tracy 1943-8-23 17444 Humboldt Eureka 6 Comment
  SEINET10755374  Hypericum perforatum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13015 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UCR48600  Hypochaeris radicata R. D. Goeden, Don W. Ricker 1987-9-2 870902- 11 Humboldt Loleta, along Cannibal Road 8 Comment
  NY177411  Iliamna rivularis var. rivularis H. N. Mozingo 1976-6-28 76100 Humboldt Outside of Humboldt National Forest, at roadside near Solid Silver Creek 1691.6 Comment
Read comments
Feb 27 2012
  UC1103806  Ionopsidium acaule Joseph P. Tracy 1920-3-3 5313 Humboldt Eureka, around Humboldt Bay, (J.P.T's garden) Eureka; Northern Coast Region, Eureka 30 Comment
  UC204418  Ionopsidium acaule Mrs. R. D. Douglas 1918-5-4 Humboldt near Ferndale Cemetary (Ferndale); Northern Coast Ranges, Ferndale 15 Comment
  UC909042  Ipomopsis aggregata Joseph P. Tracy 1933-7-25 12884 Humboldt Grouse Mtn Northern Coast Ranges 1524 Comment
  SEINET4170666  Iris Unknown 1942-5-12 Humboldt Klamath River 2 mi.'s N of Orleans Comment
  JEPS17223  Iris douglasiana W. L. Jepson 1934-5-7 16713 Humboldt Buckeye Prairie; Bull Creek Comment
  UC615044  Iris douglasiana Beryl O. Schreiber 1934-6-5 1134 Humboldt 15 mi e Blue Lake (road to Redding) Comment
  RSA135857  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16509 Humboldt Just south of Scotia (to 4.2 miles south) along Highway 101 Comment
  RSA245555  Iris purdyi Larry E. DeBuhr 1973-4-23 983 Humboldt Richardson Grove Redwood State Park. Comment
  UC14930  Iris tenuissima Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  HSC49284  Iris tenuissima J. O. Sawyer 1977-4-23 2839 Humboldt On road to Fish Lake Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC112456  Isolepis cernua Joseph Prince Tracy 1927-9-4 8363 Humboldt Sand Dunes, near Samoa on Humboldt Bay; depressions where water collects in winter.q 6 Comment
  CAS-BOT-BC340156  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River 3 Comment
  HSC89905  Jaumea carnosa Leonel Arguello 1989-7-22 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  CAS-BOT-BC101964  Juglans hindsii J. W. Blankinship 1928-7-12 s.n. Humboldt Clear Lake woods, Mouth of Kelsey Cr. Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  HSC39051  Juncus bufonius Linda M. Barker 1976-6-22 1619 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
  SEINET6333123  Juncus bufonius S. T. Parks, H. E. Parks 24254 Humboldt North Coast Ranges, Spruce Cove, Trinidad 61 Comment
  UCD170786  Juncus bufonius var. bufonius Gordon Leppig 1998-5-11 757 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  UC183677  Juncus ensifolius Joseph P. Tracy 1912-7-24 3809 Humboldt Eureka Northern Coast Region 0 Comment
  HSC44316  Juncus ensifolius Thomas W. Nelson, Jane Nelson 1977-9-3 3733 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  HSC74174  Juncus exiguus M. A. Baker 1980-7-22 3123 Humboldt Near Grogan Hole. 1676 Comment
  HSC40877  Juncus hesperius Linda M. Barker 1976-6-1 1568 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC69632  Juncus lescurii R. Kalal 1980-6-3 27 Humboldt Samoa Dunes, along Samoa Blvd., near Eureka 3 Comment
  HSC83036  Juncus lescurii A. L. Eicher 1986-5-12 Humboldt Bordering Humboldt Bay, off of Vance Ave., 0.3 mi. S of Samoa Blvd. 1 Comment
  POM203238  Juncus occidentalis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC1151998  Juncus occidentalis Joseph P. Tracy 1930-7-17 8981 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1152001  Juncus occidentalis Joseph P. Tracy 1937-8-3 15609 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC1222344  Juncus occidentalis Joseph P. Tracy 1953-6-26 19561 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC302167  Juncus phaeocephalus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CDA28713  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. Elevation: 110 meters. 0 Comment
  UC198646  Juncus saximontanus Joseph P. Tracy 1917-9-1 4834 Humboldt Murphy meadow Northern Coast Ranges, Bald Mt. 1066 Comment
  SEINET8567059 Image available Juncus xiphioides John Thomas Howell 1936-8-28 12882 Humboldt 4.5 miles from Dinsmores on road to Bridgeville Comment
  HSC73067  Juniperus communis var. saxatilis M. A. Baker 1980-6-16 1954 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  CDA3134  Kochia iranica J. F. Hart 1958-12-1 1618 Humboldt 0 Comment
  UC1196123  Kopsiopsis strobilacea Joseph P. Tracy 1927-5-15 8046 Humboldt Sugar Bowl Mt. on road between Hoopa and Willow Creek. Comment
  HSC14213  Lamium purpureum R. C. Drewien 1963-3-24 7 Humboldt McKinleyville, Turner Dr. and Mill Creek crossing Comment
  JEPS9904  Lasthenia californica subsp. californica Lincoln Constance 1934-6-3 809 Humboldt road from High Rock (on Redwood Hwy 1 mi n of Dyerville) to Horse Prairie; South Fork Eel River, Bull Creek Region Comment
  UC129574  Lasthenia californica subsp. californica Harley P. Chandler 1901-6-1 1455 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  JEPS55264  Lathyrus jepsonii var. californicus W. L. Jepson 1902-7-10 2010 Humboldt Martin's Ranch South Fork Trinity River Comment
  UCD106331  Lathyrus jepsonii var. californicus W. A. Williams 1951-6-14 s.n. Humboldt Humboldt County. Comment
  HSC95582  Lathyrus latifolius Andrea Pickart 2002-7-19 183 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  CHSC68555  Lathyrus littoralis Vernon H. Oswald 1997-4-29 8359 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC33416  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1974-5-30 1346 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  UC1222414  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1946-5-19 17534 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC205042  Lathyrus palustris Doris K. Kildale 1926-6-25 2177 Humboldt Big Lagoon Comment
  UC33512  Lathyrus torreyi Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC75555  Lathyrus torreyi J. O. Sawyer, J. Cole 1977-7-3 3004 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC5911  Layia carnosa J. W. Johnson 1962-4-18 1272 Humboldt Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula. Comment
  RSA0008480  Layia carnosa Jennifer Wheeler 2010-5-6 568 Humboldt West of Arcata, Samoa Peninsula outer Humboldt Bay north of Manila 0 Comment
  UC34175  Layia carnosa Harley P. Chandler May 1901 1150 Humboldt Humboldt Bay 3 Comment
  JEPS66641  Ledum glandulosum Joseph P. Tracy 1924-7-13 6728 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC534635  Lemna minor Henry M. Pollard 1956-10-13 2 Humboldt near Orleans Comment
  HSC59501  Lemna minor M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds Comment
  UCSB30609  Leontodon saxatilis Edwards, David 1974-8-12 Humboldt North side of 7th St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  UC582427  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1936-8-23 15168 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC89078  Lepidium didymum Peter Rubtzoff 1968-9-4 5960 Humboldt Goulds Bar, South Fork Eel River southeast of Weott. Comment
  CAS-BOT-BC89855  Lepidium nitidum Doris K. Kildale 1928-5-27 5948 Humboldt Kneeland Prairie. 853 Comment
  UC1199161  Lepidium virginicum Joseph P. Tracy 1916-5-31 4690 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  POM193006  Leptosiphon androsaceus H. E. Parks, Joseph P. Tracy 1930-5-25 0794 Humboldt Vicinity of Bridgeville, Laribee Valley Comment
  CAS-BOT-BC226712  Leptosiphon latisectus Mrs. H. C. Cantelow 1939-6-4 4125 Humboldt N.E. of Garberville Comment
  CAS-BOT-BC341828  Lessingia nemaclada Henry M. Pollard 1945-8-28 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  UCSB15427  Leucanthemum vulgare 1961-7-3 Humboldt Along State Highway 299, 18.5 miles east of U.S. Highway 101 670 Comment
  HSC5360  Leucanthemum vulgare Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC3105  Leucojum aestivum J. C. Reppas 1963-2-22 20 Humboldt 820 Fickle Hill Rd. Comment
  UCR70876  Lewisia cotyledon var. howellii Lincoln Constance, R. C. Rollins 1942-5-12 2885 Humboldt MOuth of Bluff Creek, 6 mi NE of Weitchpec 152 Comment
  UC673022  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC1198373  Lewisia nevadensis Joseph P. Tracy 1938-6-13 15924 Humboldt at Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC283515  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  UC184878  Leymus X vancouverensis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka Northern Coast Region (bay shore) 0 Comment
  CDA32456  Leymus X vancouverensis Co Hort. Comm 1930-10-1 s.n. Humboldt letter in files -- not found 0 Comment
  UC1103199  Leymus mollis subsp. mollis J. P. Tracy 1900-7-4 884 Humboldt ocean beach opp. Eureka; Samoa Comment
  HSC99548  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 213 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC63175  Lilium bolanderi M. A. Baker 1979-7-10 1021 Humboldt Comment
  HSC65927  Lilium bolanderi Gail Newton 1980-6-17 223 Humboldt Near Onion Mtn. 1341 Comment
  HSC26820  Lilium columbianum Clifton Raymond Chesbrough 1973-6-19 98 Humboldt 0.5 mi. N of College Cove along coast Comment
  JEPS563  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  CAS-BOT-BC130728  Lilium pardalinum Albert Vollmer 1949-7-1 2 Humboldt On Bald Mountain Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  CHSC19733  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt About 4 miles east of Berry Summit, along Hw. 299. Roadside ditch. Comment
  UC164821  Limnanthes douglasii Joseph P. Tracy 1908-6-9 2648 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA183582  Limnanthes douglasii subsp. douglasii G. Bos 1965-5-15 274 Humboldt Berry Summit near U.S. 299. 793 Comment
  RSA21090  Limnanthes douglasii subsp. nivea Carl B. Wolf 1937-6-14 8818 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  HSC89992  Limonium californicum Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC177192  Linanthus androsaceus Joseph P. Tracy 1912-7-21 3774 Humboldt Alton Northern Coast Region 30 Comment
  UC177200  Linanthus androsaceus Joseph P. Tracy 1912-7-26 3864 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1051526  Linanthus latisectus Helen K. Sharsmith 1953-6-28 4383 Humboldt between Bell Springs and Blue Rock Ranch (Bell Springs Road); Inner North Coast Ranges 853 Comment
  HSC97247  Linanthus nuttallii subsp. nuttallii Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9284 Humboldt Trinity River Bar down stream from the mouth of Willow Creek 152 Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC1103033  Listera caurina Joseph P. Tracy 1932-7-20 10740 Humboldt Forks of Tish-Tang-a-tang Creek Trinity Summit 1219 Comment
  HSC98814  Listera caurina Cara Witte 2008-7-7 843 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  JEPS8444  Listera caurina Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Snow Camp, Bald Mountain ridge 1432 Comment
  UC1103027  Listera cordata Joseph P. Tracy 1923-6-24 6361 1/2 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS46624  Lithocarpus densiflorus W. L. Jepson Aug 1902 Humboldt Briceland Comment
  UC502989  Lithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt near Boynton Prairie; Northern Coast Ranges 609 Comment
  UC54690  Lithocarpus densiflorus Mrs. M. H. Manning Oct 1901 Humboldt near Hupa Comment
  CAS-BOT-BC36146  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-15 2546 Humboldt Hoopa Mt. 792 Comment
  CAS-BOT-BC36148  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-22 2569 Humboldt Bald Hills, east end of Tomlinson's prairie 716 Comment
  CAS-BOT-BC283402  Lolium multiflorum Malcom A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Salt marshes around Fields Landing Comment
  JEPS72927  Lolium multiflorum Lincoln Constance 1934-5-27 699 Humboldt gravel bar of South Fork Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC10308  Lolium perenne Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC64156  Lolium perenne J. O. Sawyer, K. A. Sawyer 1979-6-24 3403 Humboldt Slopes alongside Aikens Creek. 366 Comment
  CAS-BOT-BC271058  Lolium temulentum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UCD66658  Lolium temulentum A. H. Murphy 1947-5-12 Humboldt Fairgrounds at Ferndale. Comment
Read comments
May 24 2012
  HSC70992  Lomatium californicum Gail Newton 1980-7-15 1575 Humboldt Near Sims Mtn. 1311 Comment
  JEPS17125  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1902-6 1891 Humboldt Fort Seward Ranch ridge (= Mail Ridge) 1066 Comment
  UC21254  Lomatium dasycarpum subsp. dasycarpum Harley P. Chandler June, 1901 1445 Humboldt North Coast Ranges, Klamath R. Comment
  JEPS16236  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  SBBG5200  Lomatium dissectum var. multifidum H. and M. Dearing 1933-5-16 1222 Humboldt Eel River, N of Garberville Comment
  HSC55837  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-25 10774 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC36117  Lomatium macrocarpum J. D. Ackerman 1975-6-18 471 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  HSC40704  Lomatium tracyi Barbara Kelly, Thomas W. Nelson 1977-6-15 503 Humboldt .25 mi. past Horse Mountain Rd., along dirt road just below road to ski area 1402 Comment
  UC183630  Lomatium utriculatum Joseph P. Tracy 1913-6-19 4209 Humboldt Dinsmore's Ranch opposite Buck Mt.; Northern Coast Ranges, Valley of Van Duzen R., Dinsmore's Ra 762 Comment
  UC906652  Lomatium utriculatum Joseph P. Tracy 1947-6-8 17707 Humboldt 5 mi. e. Carlotta (open flat by old Strong's District School House) 45 Comment
  HSC81687  Lonicera conjugialis Thomas W. Nelson 1979-7-11 5001 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1239549  Lonicera conjugialis Joseph P. Tracy 1932-7-11 10413 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA239767  Lonicera involucrata Larry E. DeBuhr 1973-4-23 s.n. Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC59496  Lonicera involucrata var. ledebourii M. A. Ericksen 1979-4-20 211 Humboldt 0.3 mi. S of Cranell Rd. and Little River Dr. Comment
  HSC63083  Lonicera involucrata var. ledebourii David Wheeler 1979-4-20 71 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  HSC95112  Lonicera involucrata var. ledebourii Andrea Pickart 2002-6-27 119 Humboldt Mad River Slough and Dunes, along access Rd. near parking area at N end. 15 Comment
  UC1222486  Lonicera involucrata var. ledebourii Joseph P. Tracy 1950-9-2 19346 Humboldt 2 mi s Field's Landing town Comment
  HSC46979  Lotus corniculatus J. P. Smith, Thomas W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just E of the drag strip. Comment
  RSA406778  Lotus corniculatus J. P. Smith, T. W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1223436  Lotus crassifolius var. crassifolius Joseph P. Tracy 1936-6-9 14914 Humboldt near Panther Gap (on the Bull Creek-Mattole Road) 609 Comment
  UC1223404  Lotus denticulatus Joseph P. Tracy 1934-6-23 13254 Humboldt near Blue Lake; Mad River 15 Comment
  HSC71602  Lotus humistratus M. A. Baker 1980-6-26 2417 Humboldt Near Sims Creek 610 Comment
  RSA406183  Lotus humistratus Lester Rowntree 1931-7-21 s.n. Humboldt Mattole River Bridge 2 miles from Petrolia. Comment
  UC15615  Lotus humistratus Harley P. Chandler Jun 1901 1308 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC33555  Lotus nevadensis var. nevadensis Chestnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC15566  Lotus nevadensis var. nevadensis Harley P. Chandler 1901-6-14 1487 Humboldt Orleans to Sommes Bar; North Coast Ranges, Klamath River 426 Comment
  UC201389  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  SEINET200587 Image available Lotus scoparius var. scoparius Joseph P. Tracy 1918-7-6 5048 Humboldt South fork of Eel River near the Humboldt-Mendocino county line 152 Comment
  SEINET3559880 Image available Lotus tenuis Joseph P. Tracy 1950-9-22 19345 Humboldt Field's Landing, 2 mi S of town 6 Comment
  HSC98112  Lotus unifoliolatus var. unifoliolatus Cara Witte 2007-6-27 370 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  JEPS43859  Ludwigia palustris Jos. P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley 182 Comment
  HSC70698  Luina hypoleuca Gail Newton 1980-7-15 1554 Humboldt Near Sims Mtn. 1311 Comment
  HSC74810  Luina hypoleuca Gail Newton 1980-7-23 1725 Humboldt Near Packsaddle Ridge 1463 Comment
  SD56747  Luina nardosmia Darley F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bal Hill Road. 424 Comment
  RSA167379  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-8-7 18433 Humboldt On road from Hoopa to Box Camp at summit of ridge near where the road to Big Hill turns off. Comment
  CHSC97960  Lupinus albifrons var. collinus Sara March; Gillian Levy 2005-6-24 14 Humboldt South of Grouse Mtn. on NF1. 1375 Comment
  CDA27379  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  UC1197256  Lupinus arboreus J. P. Tracy 1901-6-16 1141 Humboldt immediate vicinity Eureka (bluff at Bucksport); immed vicin of Eureka, bluff at Bucksport 0 Comment
  UCD106590  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSB16724  Lupinus arboreus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa, on peninsula, on western side of Humboldt Bay Comment
  UC501364  Lupinus bicolor Mrs. H. P. Bracelin 1931-5-3 316 Humboldt Laytonville Comment
  JEPS82142  Lupinus constancei Thomas W. Nelson and Jane P. Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to e North Coast Ranges, Blockburg Quad., Mt. Lassic (Signal Peak; Blocksburg Quadrangle on Mt. Lassic (Signal Peak), Humboldt Co. 1767 Comment
  SEINET8042134  Lupinus formosus J. P. Tracy 1904-7-4 2113 Humboldt Rgion about Humboldt Bay, bluff at Bucksport 0 Comment
  HSC61195  Lupinus latifolius Jimerson, J. Pageau 1979-5-24 475 Humboldt Near Orleans 226 Comment
  HSC76189  Lupinus latifolius Overton, Butler 1979-7-24 9779 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC39639  Lupinus latifolius subsp. latifolius Thomas W. Nelson, Jane P. Nelson 1976-6-16 2745 Humboldt W of Alder Springs along 2S08 1494 Comment
  UC865228  Lupinus latifolius var. latifolius Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  UC156982  Lupinus littoralis Joseph P. Tracy 1900-7-4 870 Humboldt sand dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC198577  Lupinus littoralis Joseph P. Tracy 1917-5-26 4785 A Humboldt Bucksport Northern Coast Ranges, , Bucksport (Eureka) 0 Comment
  UC1197271  Lupinus nanus Joseph P. Tracy 1913-6-11 4090 Humboldt near Little Van Duzen Bridge 762 Comment
  SEINET12165538  Lupinus propinquus F. H. Utech 1986-1 86 -386 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  RSA21084  Lupinus rivularis Carl B. Wolf 1937-6-19 8912 Humboldt Van Duzen River, 3/10 mi. above Bridgeville. 122 Comment
  RSA95499  Lupinus rivularis L. S. Rose 1954-4-24 54012 Humboldt Garberville 152 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
  HSC73153  Luzula comosa M. A. Baker 1980-5-18 1302 Humboldt Near Black Mtn. 1006 Comment
  HSC99372  Luzula comosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 21 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  HSC102059  Luzula subcongesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1165 Humboldt Patterson Meadows 1566 Comment
  UCD98226  Lychnis coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek. 365 Comment
  UCD23453  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  HSC62983  Lysichiton americanus David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  JEPS431  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  UCR179284  Lysichiton americanus R. G. Swinney 1968-3-29 238 Humboldt East of Humboldt State College, Arcata 152 Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  HSC15932  Lythrum hyssopifolia Lincoln Constance 1934-5-27 693 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  HSC1797  Lythrum hyssopifolia William J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  CAS-BOT-BC342804  Madia elegans Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, east side of Klamath River Comment
  HSC56970  Madia exigua Overton, Butler 1979-7-23 9499 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC71169  Madia gracilis Thomas W. Nelson 1977-5-30 3415 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  JEPS7505  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC166273  Madia gracilis Joseph P. Tracy 1901-7-31 1236 Humboldt near Hydesville 60 Comment
  UC165211  Madia gracilis J. P. Tracy 1909-9-12 2085 Humboldt near Buhne's Point; Eureka 0 Comment
  UC495628  Madia gracilis Joseph P. Tracy 1930-6-29 8816 Humboldt Buck Mountain; Northern Coast Ranges 762 Comment
  UC166103  Madia sativa Joseph P. Tracy 1909-9-19 3092 Humboldt near Samoa; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD134335  Madia sativa Linda M. Barker 1976-7-5 1636 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  HSC100559  Maianthemum bifolium Carl C. Marshall May 1886 213 Humboldt Woods everywhere, Humboldt Bay. Comment
  UC212992  Maianthemum dilatatum Joseph P. Tracy 1920-4-25 5316 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC508506  Maianthemum dilatatum D. E. Breedlove 1962-6-8 3070 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  UCD13245  Maianthemum dilatatum Peter Stekel 1974-6-1 143 Humboldt Patricks Point State Park, Agate Beach by U.S. hwy 101. Elev. 10 ft. 3 Comment
  HSC41355  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-8-2 507 Humboldt Horse Mtn. Comment
  HSC76425  Maianthemum racemosum subsp. amplexicaule Teresa Prendusi 1981-7-9 246 Humboldt Near Slate Creek Butte 1122 Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  CAS-BOT-BC347409  Malacothrix floccifera Walter Knight 1964-9-20 714 Humboldt Roadside US 101. Between Mendocino-Humboldt Co. line and Devoy Grove Comment
  RSA1806  Malus fusca Carl B. Wolf 1930-10-26 1766 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  UC154239  Malus fusca J. P. Tracy 1909-5-2 2954 Humboldt immediate vicinity Eureka 0 Comment
  UC555510  Malus fusca H. L. Mason 1932-7-21 7101 Humboldt Big Lagoon Comment
  JEPS42489  Marah oregana W. L. Jepson 1902-6-24 1931 Humboldt Blue Lake Comment
  UC1198476  Marah oregana Joseph P. Tracy 1927-6-8 8109 Humboldt Trinidad Northern Coast Ranges 60 Comment
  HSC7030  Marah oregana S. J. Hawks 1965-4-6 17 Humboldt Luffenholtz Beach Comment
  RSA246904  Matricaria matricarioides R. F. Thorne, Percy C. Everett 1965-8-8 35269 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC1197432  Medicago lupulina Joseph P. Tracy 1915-7-25 4662 Humboldt Eureka Northern Coast Region 0 Comment
  HSC98040  Medicago sativa Cara Witte 2007-7-17 537 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1234 Comment
  JEPS75422  Melica geyeri W. L. Jepson 1932-7-30 16458 Humboldt Bull Creek 121 Comment
  CAS-BOT-BC281319  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mile N of Richardson Grove, US Highway 101 highway, along S Fork of Eel River, S facing road cut and ditch Comment
  UCD88645  Melica subulata A. H. Murphy 1951-5-15 30 Humboldt 1/2 mile south of South Fork on McCann Road. Comment
  BLMAR755  Melica subulata Jennifer Wheeler 2004-4-30 755 Humboldt King Range, Along Telegraph Ridge 670 Comment
  UC552688  Melica torreyana Joseph P. Tracy 1935-5-25 13887 Humboldt North Dobbyn Creek; North Coast Ranges 152 Comment
  UCD89112  Melica torreyana A. H. Murphy 1951-4-18 s.n. Humboldt Fort Seward. 182 Comment
  HSC15518  Melilotus indicus C. Kline 1970-11-28 59 Humboldt N Bank Rd., 3 mi. W of Blue Lake, Mad River. Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC577383  Mentha pulegium Joseph P. Tracy 1933-8-22 12985 Humboldt near Loleta; near Loleta 6 Comment
  UC1239689  Mentha spicata Joseph P. Tracy 1933-10-22 13104 Humboldt Trinity River Valley opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity River Valley oppos Willow Cre 152 Comment
  HSC70912  Mentzelia dispersa Gail Newton 1980-7-23 1740 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC25986  Mentzelia laevicaulis Thomas W. Nelson 1970-9-3 221 Humboldt Mad River. Comment
  JEPS80898  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 A Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
  HSC102916  Microseris M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1087 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC322683  Microseris laciniata K. L. Chambers 1969-5-25 2921 Humboldt On road to Harris about 1 mile east of the freeway overpass at Garberville Comment
  SEINET10496812  Microsteris gracilis Lawrence P. Janeway 1983-4-16 Janeway 229 Humboldt Lord-ellis summit quad. T6n,r4e,sec.19. W facing slope near the old hwy 299 on W side of berry summit. Open hill grassland 823 Comment
  UC582606  Mimulus alsinoides Joseph P. Tracy 1923-6-3 6258 Humboldt Kneeland Prairie 762 Comment
  UC169016  Mimulus aurantiacus var. aurantiacus Harley P. Chandler 1901-5-22 1240 Humboldt near Nance's; North Coast Ranges, Mad River 91 Comment
  HSC101989  Mimulus breweri M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 888 Humboldt Patterson Meadows 1555 Comment
  HSC102505  Mimulus breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1490 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC535721  Mimulus cardinalis Eleanor Armstrong 1934-7-23 1140 Humboldt Richardson Grove <South Fork Eel> River 121 Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  HSC73600  Mimulus guttatus M. A. Baker 1980-7-22 3113 Humboldt Near Grogan Hole. 1676 Comment
  UC582703  Mimulus guttatus Joseph P. Tracy 1935-5-25 13859 Humboldt Fort Seward 106 Comment
  HSC20749  Mimulus guttatus T. M. Mingo May 1965 Humboldt About 100 ft. N of the intersection of Fairhaven Dr. and old Hwy. 101 Comment
  UC1196773  Mimulus inodorus Joseph P. Tracy 1917-9-2 4845 Humboldt near top Grouse Mtn.; Northern Coast Ranges 1524 Comment
  UC169096  Mimulus inodorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5500 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  HSC102538  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1524 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC56067  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11733 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC100673  Mimulus moschatus Carl C. Marshall Sep 1886 248 Humboldt Ravines, etc. Comment
  HSC43243  Mimulus moschatus R. Sutherland 1976-8-6 12 .6876 Humboldt 229 Comment
  UC582711  Mimulus nasutus Joseph P. Tracy 1923-5-20 6218 Humboldt Kneeland Prairie 762 Comment
  JEPS11057  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1932-7-14 10534 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  POM208986  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Lookout Point, Look Prairie; Bull Creek watershed; Humboldt Redwood Park. 381 Comment
  HSC36641  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  JEPS51477  Minuartia nuttallii subsp. gregaria P. E. Goddard 1906-6 658 Humboldt Lasseck Peak Comment
  SDSU9556  Mitella caulescens D. F. Howe 1963-8-7 3706 Humboldt 23 miles W of west entrance to Six Rivers National Forest on #299. 213 Comment
  UC303177  Mitella caulescens Joseph P. Tracy 1923-6-24 6361 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC76262  Mitella trifida Teresa Prendusi 1981-7-21 270 Humboldt Near Whiteys Peak 1646 Comment
  UC1051581  Mitella trifida Joseph P. Tracy 1935-7-23 14151 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC99403  Mitella trifida var. trifida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 52 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC18806  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  BLMAR627  Moehringia macrophylla Jennifer Wheeler 2011-6-15 627 Humboldt Lacks Creek, Doug fir understory of Stormy Saddle 1158 Comment
  HSC41204  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1977-6-19 3505 Humboldt Along creek draining N end of Pond above Alder Springs 1585 Comment
  HSC76519  Monardella odoratissima D. K. Imper 1981-8-12 903 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  SEINET3996427 Image available Monardella odoratissima Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 2225 Comment
  CAS-BOT-BC221969  Monardella odoratissima subsp. glauca Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC58126  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 12113 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC577345  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain, near McKay Camp; Northern Coast Ranges 1676 Comment
  HSC98019  Monardella sheltonii Cara Witte 2007-7-9 457 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  CAS-BOT-BC220517  Monardella villosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC220519  Monardella villosa Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  POM61350  Monardella villosa Joseph P. Tracy 1918-7-6 5042 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC177170  Monardella villosa subsp. villosa Joseph P. Tracy 1912-8-1 3961 Humboldt Opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC444807  Montia diffusa L. R. Abrams 1916-7-11 5993 Humboldt Between Blocksberg and Bridgeville Comment
  UC183597  Montia fontana Joseph P. Tracy 1913-6-17 41621 1/2 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  CAS-BOT-BC445047  Montia linearis Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Prairie Comment
  HSC55129  Montia parvifolia G. L. Clifton, Terry Griswold 1979-8-1 11934 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC1222233  Myosotis discolor Joseph P. Tracy 1942-6-15 17116 Humboldt Englewood Prairie Comment
  UC525573  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; Northern Coast Ranges 91 Comment
  HSC34644  Myosotis sylvatica John Palmer 1975-4-9 295 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC63980  Myosotis sylvatica J. P. Smith 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET6671234 Image available Myrica californica C. L. Hitchcock, J. S. Martin 1939-1 5437 a Humboldt Shelter Cove Comment
  HSC60107  Nasturtium officinale M. A. Baker 1977-6-6 375 Humboldt Hoopa Comment
  HSC73502  Navarretia capillaris Gail Newton 1980-7-11 1325 Humboldt Near Red Mtn. 1341 Comment
  UC907846  Navarretia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  HSC96212  Navarretia capillaris April A. Allard, Gregory O'Connell 2005-6-15 12 Humboldt NE of Grouse Mtn. 1447 Comment
  UC908377  Navarretia divaricata Joseph P. Tracy 1932-7-17 10681 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  HSC81574  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-7-15 6068 Humboldt Old logging rds. SE of Lundbar Hills 30 Comment
  RSA67625  Navarretia mellita P. A. Munz 1951-7-15 16545 Humboldt Ca. 3 mi. N of Willow Creek 137 Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  UCD39801  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville. 152 Comment
  HSC100497  Nemophila menziesii Carl C. Marshall Jul 1887 86 Humboldt In the hills everywhere. Comment
  UC146183  Nemophila menziesii var. atomaria Joseph P. Tracy 1908-6-9 2645 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCSB29347  Nemophila menziesii var. atomaria Phelps, M. 1972-3-20 Humboldt 0.6 mi. along Black Sands Rd. from Shelter Cove Rd. junction; Shelter Cove 24 Comment
  HSC97499  Nemophila parviflora var. austiniae C. Witte 2007-5-21 50 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  UC34955  Nicotiana attenuata Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  HSC77938  Noccaea fendleri subsp. californica Jimerson, D. K. Imper 1982-5-17 1434 Humboldt Near Ashfield Ridge. 822 Comment
  HSC97450  Noccaea fendleri subsp. glauca Cara Witte 2007-6-7 216 Humboldt Clear Lake. At end of 6N01B. 3 miles south of Titlow Hill. 1533 Comment
  UCD110176  Notholithocarpus densiflorus Joseph M. DiTomaso 1976-3-28 351 Humboldt West of Lord Ellis summit on Highway 299 between Arcata and Willow Creek. 762 Comment
  OBI14330  Notholithocarpus densiflorus var. densiflorus H. E. McMinn 1931-6-27 2542 Humboldt Summit above Weitepp; T & K river Comment
  HSC37831  Oemleria cerasiformis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2248 Humboldt Tish-Tang campground Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  HSC77345  Oemleria cerasiformis L. P. Janeway 1983-4-16 230 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  RSA293126  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt moist hillside beside Eureka Muni. Golf Course. Comment
  UC154281  Oemleria cerasiformis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC902147  Oemleria cerasiformis Joseph P. Tracy 1946-7-13 17617 Humboldt Carlotta; open flat by old Strong's District School House, 5 mi e of town 60 Comment
  UC1197136  Oenanthe sarmentosa Joseph P. Tracy 1932-9-17 10802 Humboldt Arcata Bottom 15 Comment
  CDA38485  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  JEPS35818  Oenanthe sarmentosa Rimo Bacigalupi and L. R. Heckard 1964-7-28 8964 Humboldt 1/8 mi. above Shelter Cove (near water tanks for supplying Shelter Cove) Comment
  HSC37886  Olsynium douglasii var. douglasii Thomas W. Nelson 1976-4-3 2288 Humboldt On large rock at head of Goat Rock slide, N side of Van Duzen River Comment
  UC494163  Orobanche californica subsp. californica H. E. and S. T. Parks 1930-9-14 782 Humboldt Shore of Big Lagoon. Comment
  CAS-BOT-BC502775  Orobanche californica subsp. californica J. Clausen 1932-9-18 690 Humboldt About 5 mi S of Cape Mendocino Lighthouse Comment
  POM43761  Orthocarpus erianthus var. gratiosus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC56153  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-1 12009 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS9402  Orthocarpus imbricatus Joseph P. Tracy 1932-7-11 10416 Humboldt Trinity Summit , open places at Corral Prairie (open places at Corral Prairie) 1584 Comment
  UC41915  Orthocarpus imbricatus Chesnut and Drew Aug. 1888 Humboldt head of Redwood Creek Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA249513  Osmorhiza berteroi R. F. Thorne, P. Everett 1965-8-5 35129 Humboldt Wailaki Recreation site. 518 Comment
  HSC71714  Osmorhiza purpurea M. A. Baker 1980-6-26 2435 Humboldt Near Sims Creek 610 Comment
  HSC21585  Osmorhiza purpurea T. W. Beck 1963-5-10 49 Humboldt Camp Bauer, Korbel Comment
  UC1197418  Oxalis albicans subsp. pilosa Joseph P. Tracy 1927-4-2 7872 Humboldt Philipsville North Coast Ranges (South Fork of Eel River) 121 Comment
  HSC12761  Oxalis articulata subsp. rubra M. J. Athey 1970-11-8 12 Humboldt Along Arcata blvd., in Arcata. Comment
  HSC16697  Oxalis corniculata T. W. Beck 1963-4-27 44 Humboldt Camp Bauer, Korbel Comment
  SD53235  Oxalis oregana Darley F. Howe 1962-5-22 3309 Humboldt 3.0 miles east of Orick n Bald Mountain road. 395 Comment
  CAS-BOT-BC318158  Packera bolanderi var. bolanderi Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC187241  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  UC212875  Panicum acuminatum var. acuminatum Joseph P. Tracy 1920-8-15 5356 Humboldt Klamath River Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  HSC26886  Papaver somniferum Keith Chamberlin 1973-7-24 Humboldt 10th and F St., Arcata Comment
  UC1103787  Parapholis incurva Joseph P. Tracy 15871 Humboldt Samoa Comment
  HSC35456  Parapholis strigosa J. D. Ackerman 1975-8-2 604 Humboldt Intersection of Indianola Cutoff and US Hwy. 101 1 Comment
  UC249859  Paspalum distichum Joseph P. Tracy 1924-8-31 6842 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 91 Comment
  HSC98738  Paxistima myrsinites Cara Witte 2008-5-26 662 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  RSA183642  Paxistima myrsinites D. E. Anderson 1965-6-1 3776 Humboldt Along Friday Ridge Road. 1067 Comment
  UC1199003  Paxistima myrsinites Joseph P. Tracy 1913-7-20 4373 Humboldt near summit between Redwood Creek and Three Creeks (above Three Creeks); Northern Coast Ranges 1066 Comment
  HSC20926  Pedicularis densiflora D. E. Anderson 1965-5-1 3556 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC90221  Pedicularis groenlandica Joseph P. Tracy 1947-7-5 17824 Humboldt at Box Camp Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC67770  Pellaea andromedifolia Stuart K. Harris 1960-7-11 21651 Humboldt 3.8 miles west of Redwood on road to Briceland Comment
  HSC74031  Pellaea brachyptera Gail Newton 1980-7-22 1674 Humboldt Near Devils Backbone 1554 Comment
  HSC55612  Penstemon anguineus Walter Overton, Marvin Butler 1979-7-23 9496 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC75162  Penstemon azureus J. O. Sawyer, R. J. Cole 1977-7-3 3009 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC76225  Penstemon laetus subsp. sagittatus Walter Overton, Marvin Butler 1979-7-24 9745 Humboldt Near Black Rock, close to the town of Willow Creek 1554 Comment
  UC162565  Penstemon laetus var. sagittatus Joseph P. Tracy 1911-7-6 3344 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges 762 Comment
  RSA0060250  Pentagramma triangularis H. S. Logsdon 1964-5-16 s.n. Humboldt 3.0 mi SE of Bayside on Jacoby Creek Rd. Comment
  HSC99564  Perideridia gairdneri subsp. borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 229 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
  UC314589  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-10-28 6588 Humboldt Bald Mt. Northern Coast Ranges 762 Comment
  JEPS146  Perideridia gairdneri subsp. gairdneri W. L. Jepson 1936-8-17 17918 Humboldt hillside 2 mi s Field's Landing Comment
  HSC98551  Perideridia howellii Cara Witte 2007-8-1 613 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC1197324  Perideridia kelloggii Joseph P. Tracy 1921-10-2 5967 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET12119282  Perideridia kelloggii J. P. Tracy 1950-1 19382 Humboldt Berry's Mountain, E of Redwood Creek on Trinity Highway 549 Comment
  UC1222744  Perideridia kelloggii Joseph P. Tracy 1950-10-7 19382 Humboldt e Redwood Creek (on the Trinity Hwy); Berry's Mountain 548 Comment
  HSC102170  Perideridia oregana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1082 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC413506  Persicaria amphibia Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CAS-BOT-BC419193  Persicaria maculosa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  UC166539  Petasites frigidus var. palmatus Joseph P. Tracy 1905-3-5 2146 Humboldt Ryans Slough Northern Coast Ranges, Humboldt Bay Region 0 Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC57203  Phacelia heterophylla Griswold, Butler 1979-7-10 7129 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC99465  Phacelia heterophylla subsp. virgata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 119 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC44535  Phacelia mutabilis Brad Klipfel 1973-7-1 143 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57422  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-26 10193 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC98826  Phacelia mutabilis Cara Witte 2008-7-16 915 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1245402  Phacelia mutabilis Joseph T. Gregory 1935-7-30 862 Humboldt near summit; Salmon Summit 2103 Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  RSA134090  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 275 Humboldt Above the South Fork of the Eel River, about w miles S of the Humboldt County line. Redwood and Madrone area along U.S. 101. Comment
  UC671690  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  UC562579  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  POM259083  Phalaris aquatica J. T. Howell 1937-7-31 13721 Humboldt 4 miles north of Loleta Comment
  HSC24261  Phalaris californica D. E. Anderson 1970-6-14 5125 Humboldt Near Maple Creek School, about 2 mi. SE of junction of Maple Creek Rd. and Butler Valley Rd. Comment
  UC1152047  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt near Redcrest Englewood Comment
  UCD88768  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt Butter Valley Road, about 2 miles E of junction of Kneeland Prairie Road. Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  UC526668  Phleum alpinum Joseph P. Tracy 1926-7-5 7733 Humboldt Valley of South Yager Creek 762 Comment
  HSC55663  Phlox adsurgens Overton, Butler 1979-7-25 9821 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC65479  Phlox adsurgens M. A. Baker 1980-6-7 1806 Humboldt Near Brush Mtn. 1128 Comment
  HSC48839  Phlox diffusa Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 31 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC604637  Phlox gracilis Joseph P. Tracy 1938-6-13 15923 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC1198562  Phlox gracilis Joseph P. Tracy 1906-5-6 2447 Humboldt near Hydesville (hillside of Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  HSC59450  Phoradendron serotinum subsp. tomentosum Kenneth Clark 1979-5-13 280 Humboldt Chezem Rd., off of Hwy. 299, 0.2 mi. W of N end of Chezem Rd. 610 Comment
  CAS-BOT-BC140582  Physocarpus capitatus Carl B. Wolf 1927-8-30 1227 Humboldt 2 mi. s. of Petrolia on the [Matole] Mattole River near point where road crosses river Comment
  SBBG24465  Picea sitchensis J. W. Howe -Mar-1938 Humboldt [label without specific locality] Comment
  UC535712  Picea sitchensis Eleanor Armstrong 1934-7-31 1145 a Humboldt Patricks Point 30 Comment
  HSC76293  Pinus attenuata Denis Kearns 1981-7-6 70 Humboldt Near Mosquito Lake 1256 Comment
  JEPS46793  Pinus attenuata W. L. Jepson 1902-7-1 Humboldt trail to Trinity Summit from Hupa Valley Comment
  CAS-BOT-BC78374  Pinus contorta L. R. Abrams 1916-7-18 6352 Humboldt Arcata to Trinidad Comment
  HSC70538  Pinus lambertiana Gail Newton 1980-7-22 1661 Humboldt Near Devils Backbone 1646 Comment
  HSC48733  Pityopus californicus J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 519 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 181 1037 Comment
  CAS-BOT-BC458134  Pityopus californicus Doris K. Kildale 1926-6-6 2110 Humboldt Trail to Gold Bluffs Comment
  RSA95501  Pityopus californicus Harry L. Buckalew s.n. Humboldt James Irvine Trail - 2 miles from the ocean; Prairie Creek State Park. Comment
  CAS-BOT-BC227992  Plagiobothrys Doris Kildale Gillespie 1931-6-7 10647 Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  UC1186480  Plagiobothrys bracteatus John H. Weiler and A. P. Nelson 1960-6-28 60250 Humboldt vernal pool on floodplain of river 3.6 mi w Humboldt-Trinity County line; Van Duzen River Comment
  UC1239572  Plagiobothrys reticulatus Joseph P. Tracy 1932-5-1 9884 Humboldt Garberville Northern Coast Ranges, Garberville 121 Comment
  UC526820  Plagiobothrys reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  POM126351  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton. 30 Comment
  UC139568  Plagiobothrys reticulatus Joseph P. Tracy 1915-6-27 4660 Humboldt near the Creamery (Hydesville); Northern Coast Ranges, Hydesville 91 Comment
  JEPS60975  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  SEINET12275869  Plagiobothrys scouleri J. P. Tracy 1949-1 18315 Humboldt Fickle Hill, 6 mi SE of Arcata 610 Comment
  SEINET12275870  Plagiobothrys scouleri J. P. Tracy 1950-1 18724 Humboldt Bear River Ridge Comment
  UCD120950  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  UC1239624  Plagiobothrys tenellus Joseph P. Tracy 1918-5-1 4910 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET12275926  Plagiobothrys trachycarpus J. P. Tracy 1942-1 17355 Humboldt 1 mi NE of Garberville 305 Comment
  HSC89480  Plantago lanceolata P. A. Daly 1986-3-12 75 Humboldt Trinidad Head 61 Comment
  HSC16846  Plantago lanceolata S. R. Johnson 1965-3-14 6 Humboldt 1.5 mi. N of Luffenholtz Beach Comment
  UCD124617  Plantago lanceolata Gary Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  OBI11636  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill, 6 mi SE of Arcata Comment
  RSA246748  Plantago maritima Robert F. Thorne, Percy C. Everett 1965-8-8 35276 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  UC666989  Platanthera leucostachys Joseph P. Tracy 1933-7-25 12842 Humboldt Grouse Mountain 1524 Comment
  HSC104059  Platystemon californicus M. F. Norman 2015-4-11 19 Humboldt Arcata, Ma-le'l Dunes Comment
  UC146098  Platystemon californicus Joseph P. Tracy 1904-5-1 2046 Humboldt near Bucksport (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  UC602503  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 1/2 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  SEINET6995401  Plectritis ciliosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Open burnt timber, saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 Humboldt French Camp Ridge 1066 Comment
  HSC63230  Plectritis congesta subsp. brachystemon M. A. Baker 1979-5-6 473 Humboldt Weitchpec. Comment
  HSC96230  Plectritis congesta subsp. brachystemon Kaylea Eickhoff, Cara M. Witte 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC70751  Pleuricospora fimbriolata R. York 1980-5-17 532 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC458164  Pleuricospora fimbriolata Doris K. Kildale 1927-8-7 3858 Humboldt Lawrence Creek 609 Comment
  UCD90101  Pleuropogon refractus A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3482 Humboldt branch of South Fork of Yager Creek. North of Yager. Comment
  HSC90689  Poa annua Gail Newton 1982-6-10 3593 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC255122  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  UC1145142  Poa douglasii Joseph P. Tracy 1917-5-30 4799 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UC1146601  Poa douglasii Freed W. Hoffman 1946-5-21 1719 Humboldt sand dunes near Eel River Comment
  RSA183517  Poa kelloggii H. S. Logsdon 1964-5-10 7 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  UC187251  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt along Little River (5 mi from coast); Northern Coast Region 121 Comment
  RSA92307  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, near ocean shore, south point of the Cape. 3 Comment
  CAS-BOT-BC255943  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC10768  Poa pratensis N. R. Waite 1965-5-19 42 Humboldt W edge of Humboldt State University campus. Comment
  HSC26627  Poa pratensis J. P. Smith, Steve Selva 1970-6-30 4104 Humboldt Comment
  HSC75471  Poa pratensis J. O. Sawyer 1980-7-18 3618 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UCD91919  Poa pratensis P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia. By road through red woods off highway. Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD90330  Poa secunda A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3478 Humboldt Head of South Yager Creek, near Yager. Comment
  UC1565801  Poa secunda subsp. juncifolia R. Spellenberg 1990-7-10 10247 Humboldt 8 mi wsw Salyer (at 6 mi s of Berry Summit (on CA Hwy 299), extreme e edge of county) 1371 Comment
  HSC10789  Poa secunda subsp. secunda J. P. Tracy 1927-6-12 8143 Humboldt Horse Mtn. 1524 Comment
  HSC40517  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-6-22 2876 Humboldt Area at Goat Hill. 1666 Comment
  UC525662  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts 1828 Comment
  UCD92117  Poa trivialis H. S. Yates 1936-6-16 6582 Humboldt near Bayside. Comment
  CAS-BOT-BC244298  Podagrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  HSC94145  Polycarpon tetraphyllum Gordon Leppig 2000-12-6 1522 Humboldt 13th and A St. in Arcata 49 Comment
  HSC48881  Polycarpon tetraphyllum J. P. Smith, Thomas W. Nelson 1977-6-30 9222 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC48413  Polygala californica J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9929 Humboldt Ishi Pishi Rd., 2.5 mi. from Jct. with State Rte. 36 in Orleans. 213 Comment
  UC1198996  Polygala californica Joseph P. Tracy 1921-4-24 5455 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  UC535763  Polygala californica Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  RSA75592  Polygala californica Albert M. Vollmer, L. Beane 1951-6-6 127 Humboldt On road between Orick and Weitchpec. Comment
  UC144100  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1909-7-31 3038 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC109187  Polygonum paronychia D. E. Breedlove 1962-6-7 3035 Humboldt 1.5 mile south of Samoa on peninsula on western side of Humboldt Bay. Comment
  CHSC23310  Polygonum paronychia Robert F. Thorne; P. Everett 1965-8-5 35163 Humboldt Samoa Dunes. 3 Comment
  HSC17516  Polygonum paronychia H. E. Parks Feb 1934 4834 Humboldt Stone Lagoon Comment
  HSC17519  Polygonum paronychia D. B. Bader 1963-3-1 19 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC33752  Polygonum paronychia A. Montalvo 1975-5-24 283 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1136167  Polygonum persicaria H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quadrangle Comment
  UC1198082  Polygonum persicaria Joseph P. Tracy 1912-10-20 3990 Humboldt near Loleta Pond; Northern Coast Ranges, Eel R. Valley 15 Comment
  RSA20960  Polygonum polystachyum Carl B. Wolf 1937-9-12 9334 Humboldt SW side of Eureka bordering Humboldt Bay 3 Comment
  HSC98687  Polygonum sawatchense subsp. oblivium Cara Witte 2007-7-5 420 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC35604  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2015 Humboldt French Camp, Bald Hills. Comment
  SEINET182509 Image available Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek Comment
  HSC78979  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt N Spit of Humboldt Bay, W side Samoa Rd. near the boat ramp 5 Comment
  RSA47154  Polypodium glycyrrhiza Doris K. Kildale 1928-12-29 6766 Humboldt Unspecified Comment
  SEINET200789 Image available Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt Blue Slide, on Van Duzen River Comment
  CAS-BOT-BC232957  Polypogon australis Peter Rubtzoff 1968-9-4 5959 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  POM252888  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  UC50476  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5510 Humboldt near Camp Grant; near Camp Grant Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  UCD91310  Polypogon monspeliensis J. B. Davy; W. L. Blasdale 1899-5 5549 Humboldt Scotia. 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
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  UC503068  Polystichum imbricans subsp. imbricans Joseph P. Tracy Jul 16 1930-Jul 19 1930 9089 Humboldt near McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  HSC70930  Polystichum munitum R. York 1980-5-18 559 Humboldt Near Black Mtn. 1006 Comment
  HSC79146  Polystichum munitum C. J. Thomas 1984-9-25 117 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC249849  Polystichum munitum Joseph P. Tracy 1924-8-24 6828 Humboldt E Fork Willow Creek; Northern Coast Ranges 457 Comment
  UC812661  Polystichum munitum George Neville Jones 1926-3-22 8671 Humboldt near Garberville Comment
  HSC54558  Polystichum scopulinum Overton, Butler 1979-7-24 9567 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC59499  Potamogeton natans M. A. Ericksen 1979-4-20 209 Humboldt Northernmost Clam Beach ponds, .3 mi. S of Cranell Rd. and Little River Dr., 16 mi. N of Eureka Comment
  UC1099846  Potamogeton natans Malcolm A. Nobs, S. Galen Smith 1949-8-9 1229 Humboldt 1 mi n of Arcata (at junction of Highways 101 and 299); Mad River Valley Comment
  BLMAR668  Potamogeton nodosus Jennifer Wheeler 2012-10-10 668 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  UC1103479  Potamogeton pectinatus Joseph P. Tracy 1939-8-20 16432 Humboldt Big Lagoon 3 Comment
  HSC92714  Potamogeton pusillus R. York 1977-10-22 54 Humboldt Behind Fieldbrook School Comment
  RSA21654  Potentilla gracilis Carl B. Wolf 1937-6-14 8809 Humboldt North coast range, 1.5 miles N of Kneeland Prairie 823 Comment
  HSC56414  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-11 7064 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC540159  Potentilla gracilis var. fastigiata Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 mi. from Bald Mt. on road to Snow Camp. 914 Comment
  UCSB666  Prosartes smithii Parks, H.; Parks, S. 1952-05 Humboldt Spruce Cove, Trinidad 30 Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  HSC15474  Prosartes smithii W. D. Stevens 1964-5-12 11 Humboldt E end of 14th St., Arcata Comment
  HSC15482  Prosartes smithii D. E. Anderson 1961-8-11 1737 Humboldt E of Humboldt State College campus. 30 Comment
  HSC49178  Prosartes smithii J. O. Sawyer 1977-4-23 2848 Humboldt Bluff Creek Campground Comment
  HSC14307  Prunella vulgaris David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  HSC98985  Prunella vulgaris Cara Witte 2007-7-3 410 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1392 Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 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
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC1402063  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 620 -30 Humboldt Comment
  CAS-BOT-BC158598  Prunus C. Hart Merriam 1921-7-7 s.n. Humboldt Ridge west of the Van Duzen River Comment
  HSC40670  Prunus emarginata Thomas W. Nelson, Jane P. Nelson 1976-7-1 2931 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  RSA46915  Prunus emarginata Doris K. Kildale 1926-9-5 2620 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  CAS-BOT-BC154785  Prunus virginiana var. demissa Mrs. R. M. Austin 1894-6-1 s.n. Humboldt Willow Creek Valley Comment
  HSC97633  Prunus virginiana var. demissa Cara Witte 2007-6-12 247 Humboldt Cold Spring. 1410 Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC14175  Prunus virginiana var. demissa W. C. Blasdale 1896-6-8 Humboldt Mad River Comment
  UC165845  Pseudognaphalium californicum Joseph P. Tracy 1908-7-1 2911 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers) 914 Comment
  UC1222889  Pseudognaphalium thermale Joseph P. Tracy 1950-9-22 19376 Humboldt below 8 mi Orleans (near Slate Creek); Klamath River 121 Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  SEINET3875696  Pseudotsuga menziesii K. S. Erdman 1970-6-17 4792 Humboldt Redwood National Park near Holter Ridge entrance along Bald Hills Road southeast of Orick.; 0 Comment
  HSC36438  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 6 Humboldt County park at Big Lagoon Comment
  UCD39989  Pteridium aquilinum var. pubescens Rodney Gale Myatt 1971-9-21 1187 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  HSC48681  Pyrola crypta Brad Klipfel 1973-7-31 244 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS48537  Pyrola crypta Hilda W. Grinnell 1932-7-19 29 Humboldt McKay Camp, So. Fork Mt. Comment
  JEPS66563  Pyrola crypta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1584 Comment
  HSC99085  Pyrola dentata Cara Witte 2007-6-26 355 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  CAS-BOT-BC62627  Quercus chrysolepis Doris K. Kildale 1926-12-19 2879 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  JEPS37484  Quercus chrysolepis W. L. Jepson 1903-6 2204 Humboldt Briceland, Expedition from Ukiah to Southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg Briceland Comment
  SBBG1304  Quercus chrysolepis H. and M. Dearing 1933-5-16 2792 Humboldt near Garberville Comment
  UC503089  Quercus chrysolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9413 Humboldt opposite Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC94312  Quercus garryana Doris K. Kildale 1926-8-31 2603 Humboldt Union Mattola, Geo. Miner Ranch Comment
  UC54687  Quercus garryana Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  OBI36669  Quercus garryana var. garryana David J. Keil 1983-7-2 17343 Humboldt 21 mi S of SR 299 along Titlow HIll rd, SW of Willow Crk Comment
  HSC68613  Quercus kelloggii Jacqueline Greenleaf 1980-7-16 248 Humboldt Near Buck Mountain. 1250 Comment
  UC1196358  Quercus kelloggii Joseph P. Tracy 1913-6-22 4270 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCSB6966  Quercus kelloggii Muller, Cornelius 1954-6-21 Humboldt Olsen Creek, 2 mi. ESE of Mad River, on road to Forest Glen Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  UCD14015  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; Comment
  UC1196506  Quercus wislizeni Joseph P. Tracy 1923-10-14 6577 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1196510  Quercus wislizeni Joseph P. Tracy 1938-6-9 15883 Humboldt North Dobbyn Creek Dobbyn Creek 152 Comment
  UC184714  Ranunculus alismifolius Joseph P. Tracy 1913-6-17 4155 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC552284  Ranunculus flammula Joseph P. Tracy 1934-7-30 13499 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UC1196225  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5453 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River 91 Comment
  UC1542903  Ranunculus occidentalis H. E. Parks, J. P. Tracy 1930-5-25 859 Humboldt Laribee Valley 762 Comment
  JEPS55183  Ranunculus occidentalis W. L. Jepson 1902-6-20 1895 Humboldt Fort Seward Ranch Ridge Comment
  HSC18166  Ranunculus occidentalis var. occidentalis D. E. Anderson 1962-5-1 2190 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC68716  Ranunculus orthorhynchus Jacqueline Greenleaf 1980-5-23 89 Humboldt Near Dinsmores 735 Comment
  UC1196246  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1930-6-29 8817 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of its nw slope, in stream-bed) 762 Comment
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC6888  Raphanus sativus W. F. Nickel 1965-4-3 Humboldt 1 mi. N of Orick on Hwy. 101 Comment
  JEPS41990  Rhamnus californica W. L. Jepson 1932-8-8 16480 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
Read comments
Jan 17 2008
  UC1197997  Rhamnus californica Joseph P. Tracy 1934-8-4 13555 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC592714  Rhamnus californica subsp. californica Carl B. Wolf 1934-6-30 Humboldt back of Shelter Cove 60 Comment
  RSA202161  Rhamnus californica subsp. occidentalis W. L. Jepson 1902-1 1977 Humboldt Three Creeks to Willow Creek. 762 Comment
  CAS-BOT-BC55966  Rhamnus ilicifolia L. R. Abrams 1927-9-11 12141 Humboldt Fork Klamath and Shasta Rivers Comment
  RSA13285  Rhamnus purshiana Doris K. Kildale 1929-5-25 8394 Humboldt Pines Pasture, Eureka. 61 Comment
  RSA1465  Rhamnus purshiana E. R. Johnson 1929-08 1410 Humboldt Arcata Redwood Park. 76 Comment
  RSA7816  Rhamnus purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French camp on Orick-Martins ferry road 610 Comment
  UC902199  Rhamnus purshiana Joseph P. Tracy 1948-8-22 18101 Humboldt 5 mi e Carlotta (flat by old Strong's District School House) 60 Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  HSC23118  Rhododendron columbianum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  CAS-BOT-BC56613  Rhododendron macrophyllum Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CAS-BOT-BC56616  Rhododendron macrophyllum Mrs. A. H. Rodda 1932-5-20 s.n. Humboldt Redwood Highway Comment
  HSC31567  Rhododendron macrophyllum Glenn McGourty 1974-5-11 37 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  SDSU3417  Rhododendron macrophyllum D. F. Howe 1961-8-2 3120 Humboldt 7.7 miles east of Orick and Bald Mt. road. 610 Comment
  UC1197789  Rhododendron occidentale J. P. Tracy 1901-6-23 1165 Humboldt immediate vicinity of Eurek 0 Comment
  UC175739  Rhododendron occidentale Joseph P. Tracy 1912-4-21 3573 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC69697  Rhododendron occidentale var. paludosum R. Kalal 1980-6-8 16 Humboldt Azalea State Reserve 52 Comment
  POM184793  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt Trinity Summit. 1524 Comment
  CAS-BOT-BC168854  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  CAS-BOT-BC168876  Ribes lacustre Joseph P. Tracy 1933-7-16 12784 Humboldt South Fork Mountain, openings in fir forest near McKay Camp 1676 Comment
  HSC102560  Ribes lacustre M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC11582  Ribes laxiflorum Harley P. Chandler May, 1901 1202 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC20327  Ribes lobbii Francis Winter 1960-5-7 Humboldt NE end of Arbor Camp Ridge 915 Comment
  HSC40559  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-5-23 2523 Humboldt SW facing slopes 1666 Comment
  UC667058  Ribes lobbii Joseph P. Tracy 1935-5-12 13801 Humboldt summit between North Fork Mad River and Redwood Creek (on Trinity Highway) 670 Comment
  UC1198937  Ribes marshallii Joseph P. Tracy 1932-7-15 10591 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC206040  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  CAS-BOT-BC206041  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad 60 Comment
  UC552232  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  RSA0021771  Ribes menziesii Doris K. Kildale 1927-2-22 s.n. Humboldt Bucksport, near Eureka. Comment
  RSA0021772  Ribes menziesii Doris K. Kildale 1927-6-25 3570 Humboldt Shelter Cove. Comment
  BLMAR142  Ribes roezlii var. amictum Donald Hazlett 1994-6-7 142 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC198868  Ribes roezlii var. amictum Volney Rattan 1880-1-1 s.n. Humboldt Unspecified Comment
  UC1198949  Ribes roezlii var. amictum Joseph P. Tracy 1922-4-2 5985 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 60 Comment
  RSA0024583  Ribes roezlii var. cruentum Jim R. Shevock 1972-3-26 1465 Humboldt Panther Ridge, W of Willow Creek. 305 Comment
  CAS-BOT-BC212520  Ribes sanguineum Joseph P. Tracy 1949-4-10 18281 Humboldt Redwood Creek at Berry's 365 Comment
  CAS-BOT-BC212521  Ribes sanguineum Harley P. Chandler 1901-6-1 1287 Humboldt Hupa Indian Reservation 1097 Comment
  HSC71794  Ribes sanguineum Gail Newton 1980-6-16 174 Humboldt Near Monks Camp. 1097 Comment
  UC1198915 Image available Ribes sanguineum Joseph P. Tracy 1933-8-30 13059 Humboldt near Rnager's Lookout; Grouse Mountain 1615 Comment
  RSA0019529  Ribes sanguineum D. E. Anderson 1964-4-24 3540 Humboldt About 0.5 mile from junction 299 along Titlow Hill Road. Comment
  CAS-BOT-BC144678  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-5-1 5987 Humboldt MacLillan Mountain 914 Comment
  HSC37844  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  UC902092  Ribes sanguineum var. glutinosum Joseph P. Tracy 1943-3-14 17408 Humboldt vicinity Carlotta 30 Comment
  RSA0018246  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along Forest Road 5N10 just north of junction with Road 6N08. 1372 Comment
  CAS-BOT-BC173993  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt Ridges East of Corral Prairie 1828 Comment
  HSC103209  Ribes viscosissimum Jade Paget-Seekins 2010-6-30 32 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
Read comments
Mar 8 2016
  HSC55998  Ribes viscosissimum Overton, Butler 1979-7-31 11441 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  RSA0020901  Ribes viscosissimum Jos. Burtt Davy 1899-6-23 5848 Humboldt Trinity Summit. 2134 Comment
  SEINET11803871  Rigiopappus leptocladus J. P. Tracy 1950-1 18996 Humboldt 2 mi S of Burr Valley on Albee Road 1158 Comment
  UC1222908  Rigiopappus leptocladus Joseph P. Tracy 1948-6-13 18059 Humboldt 3 mi w Harris 762 Comment
  NY337230  Romanzoffia tracyi J. P. Tracy 1933-5-9 11008 Humboldt Vicinity of Trinidad 15.2 Comment
  UC660024  Romanzoffia tracyi Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-18 2619 Humboldt ocean bluffs n. of Trinidad 30 Comment
  CHSC33380  Rosa canina J. O. Sawyer; R. J. Cole 1977-7-3 3019 A Humboldt Along Big Hill Road (8N01) at Mud Spring. Comment
  JEPS47283  Rosa eglanteria W. L. Jepson 1936-8-18 17947 Humboldt 1/2 mi nw Petrolia (along a gully in the village) Comment
  POM275376  Rosa eglanteria Lyman D. Benson 1928-7-10 415 Humboldt Weott Ranger Station. Mtn. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  CAS-BOT-BC146495  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 304 Comment
  HSC19627  Rosa gymnocarpa R. E. Thill 1965-5-1 23 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. 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
  CAS-BOT-BC146844  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4825 Humboldt Near Bridgeville Comment
  HSC27851  Rosa nutkana Clifton Raymond Chesbrough 1973-6-19 61 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC527438  Rosa nutkana var. nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mi from Rohnerville (on road to Fortuna) 30 Comment
  HSC99308  Rosa rubiginosa C. B. Wolf 1927-8-30 1251 Humboldt 3 mi. S of Thorn along old coast road Comment
  UC1199040  Rosa spithamea Joseph P. Tracy 1929-7-4 8620 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  JEPS44732  Rubus lasiococcus Joseph P. Tracy 1932-7-16 10640 Humboldt in fir woods near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  UC709448  Rubus lasiococcus Joseph P. Tracy 1941-8-24 17042 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  HSC40998  Rubus leucodermis J. O. Sawyer 1975-10-17 2708 Humboldt Along Big Hill Rd. 915 Comment
  UC1193204  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two mi w Harris Post Office; Quad. 29D3, w of Harris Post Office 853 Comment
  UC492168  Rubus leucodermis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8905 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC89607  Rubus parviflorus M. Roantree 1985-8-25 11 Humboldt E side of Trinidad Head along paved rd. Comment
  SEINET8254189  Rubus parviflorus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka. Comment
  CHSC13518  Rubus spectabilis A. R. Morrison 1974-4-27 Humboldt Ca. 1.5 mi. off Hwy. 101 on Westhaven Rd., Trinidad. 45 Comment
  UCSB31471  Rubus spectabilis Clark, Sharon 1978-3-29 Humboldt 119.5 miles on Route 101, 2 miles south of Orick 91 Comment
  HSC55306  Rubus ursinus Griswold, Butler 1979-7-11 6907 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  JEPS47291  Rubus ursinus W. L. Jepson 1932-8-8 16528 Humboldt near Weatt; near Weatt 304 Comment
  UCD17613  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 052 Humboldt California. Humboldt County: 27.8 miles from Ettersburg toward Dyerville. Comment
  UCD17625  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 039 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  UC146145  Rumex J. P. Tracy 1906-8-18 2543 Humboldt immediate vicinity Eureka 0 Comment
  HSC100603  Rumex acetosella Carl C. Marshall May 1886 163 Humboldt Everywhere. Comment
  HSC102195  Rumex californicus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1109 Humboldt Andy's Camp 1564 Comment
  CAS-BOT-BC421525  Rumex crassus Doris K. Kildale 1926-6-29 2242 Humboldt Mouth of Mad River Comment
  UC55522  Rumex pulcher Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6111 Humboldt near Ferndale Comment
  CAS-BOT-BC434095  Rumex transitorius Doris K. Kildale 1927-6-25 3553 Humboldt Shelter Cove. Comment
  UC275565  Ruppia maritima Joseph P. Tracy 1923-5-30 6248 Humboldt mouth of Little River; Northern Coast Ranges 1 Comment
  SEINET10966379  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 Tracy 17267 Humboldt Hungry Hollow. on Bald Mountain 610 Comment
  JEPS51070  Sagina procumbens W. L. Jepson 1921-8-7 9337 Humboldt Stone Lagoon Humboldt Coast, Stone Lagoon Comment
  HSC83039  Salicornia depressa A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UCSB34196  Salicornia pacifica Kearns, Dennis 1979-8-24 Humboldt In mean tide area of Arcata Bay, on periphery near the Arcata Boat Launching Facility at the South end of "I" Street Comment
  UC1191405  Salicornia virginica Malcolm A. Nobs and S. Galen Smith 1949-8-3 1170 Humboldt around Field's Landing Field's Landing Comment
  CAS-BOT-BC132712  Salix A. T. Whittemore 1980-3-15 80 -009 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  SBBG58913  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC1173615  Salix exigua var. hindsiana Joseph P. Tracy 1935-5-30 13912 Humboldt at Willow Creek Trinity R. Valley 152 Comment
  UC469444  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9640 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC481299  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 968 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC511979  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1248 Humboldt floodplain of Eel R. at Fernbridge Comment
  CAS-BOT-BC104117  Salix hindsiana Doris K. Kildale 1926-9-19 2804 Humboldt Fort Seward 98 Comment
  CAS-BOT-BC106860  Salix hookeriana W. J. Ferlatte 1967-6-13 1118 Humboldt Clam Beach Lagoon 6 Comment
  CAS-BOT-BC106861  Salix hookeriana W. J. Ferlatte 1967-6-13 1117 Humboldt near mouth of Mad River 3 Comment
  CAS-BOT-BC107677  Salix hookeriana John Johnson 1962-3-15 1132 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107679  Salix hookeriana Doris K. Kildale 1926-7-18 2389 Humboldt Near mouth of Redwood Creek 15 Comment
  CAS-BOT-BC107712  Salix hookeriana Doris K. Kildale 1926-3-20 1556 Humboldt Big Lagoon Comment
  CAS-BOT-BC107740  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107741  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa 6 Comment
  HSC59447  Salix hookeriana Kenneth Clark 1979-4-3 34 Humboldt Manila, SW from end of Old Samoa Rd. Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS12960  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  LA208757  Salix hookeriana Harold E. Parks; 1931-5-28 999 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM219537  Salix hookeriana H. E. Parks 1931-08 1057 Humboldt Bishop Pine Lodge. Trinidad. 150 Comment
  RSA34284  Salix hookeriana Doris K. Kildale 1926-3-28 1691 Humboldt Redwood Creek at Berry's. Comment
  SBBG27479  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1173589  Salix hookeriana Joseph P. Tracy 1938-6-16 15941 Humboldt Trinidad; streambank facing ocean 3 Comment
  UC1225929  Salix hookeriana Joseph P. Tracy 1947-2-23 17669 Humboldt Bridgeville Van Duzen River 198 Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC469125  Salix hookeriana Joseph P. Tracy 1931-8-23 9621 Humboldt sand dunes near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC470433  Salix hookeriana Joseph P. Tracy 1927-9-25 8383 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  UC481334  Salix hookeriana Harold E. Parks Aug 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC481351  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC490432  Salix hookeriana Joseph P. Tracy 1932-5-10 9959 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490459  Salix hookeriana Joseph P. Tracy 1932-5-10 9950 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490472  Salix hookeriana Joseph P. Tracy 1932-9-5 10771 Humboldt Mattole River near Petrolia; North Coast Region 15 Comment
  UC492335  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1102 Humboldt Little River Lagoon Trinidad Comment
  UC504060  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 7 Humboldt Samoa Comment
  UC506346  Salix hookeriana Joseph P. Tracy 1933-3-19 10925 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC512099  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 b Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC512121  Salix hookeriana Harold E. Parks and Joseph P. Tracy 1933-3-19 11006 Humboldt 2 mi w Bridgeville; Van Duzen River 228 Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  SBBG59090  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, S fork of Eel River Comment
  UC198592  Salix laevigata Joseph P. Tracy 1916-6-19 4722 Humboldt near Forks of Dobbyn Creek; Northern Coast Ranges 182 Comment
  UC275503  Salix laevigata Joseph P. Tracy 1925-11-1 7301 Humboldt Shively, along Eel R. from S. Fork to Scotia Northern Coast Ranges, Eel R., Shively 60 Comment
  UC481240  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1931-8-15 1078 Humboldt Van Duzen R. Blue Slide; , Blue Slide 100 Comment
  UC1196576  Salix lasiandra var. lasiandra Joseph P. Tracy 1941-3-26 16816 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  CAS-BOT-BC107580  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1254 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107581  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1255 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  HSC70352  Salix lasiolepis M. A. Baker 1980-6-7 1841 Humboldt Near Ammon Creek 732 Comment
  JEPS14769  Salix lasiolepis Joseph P. Tracy 1932-10-8 10867 Humboldt on Trinity Hwy. Berry's Mt. 762 Comment
  UC275522  Salix lasiolepis Joseph P. Tracy 1924-2-24 6604 Humboldt on S. Fork Eel R. McKee's Mill; Northern Coast Ranges, S. Fork Eel R., McKee's Mill 60 Comment
  UC469427  Salix lasiolepis Joseph P. Tracy 1931-9-7 9628 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469431  Salix lasiolepis Joseph P. Tracy 1931-9-27 9690 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel River 15 Comment
  UC490553  Salix lasiolepis Joseph P. Tracy 1932-3-6 9774 Humboldt at mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC506397  Salix lasiolepis Joseph P. Tracy 1933-3-19 10934 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC506403  Salix lasiolepis Joseph P. Tracy 1932-6-4 10127 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506506  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC506509  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC511981  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  CAS-BOT-BC107293  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01241 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  POM219689  Salix lucida subsp. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125606  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0974 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125628  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  UC176691  Salix melanopsis Joseph P. Tracy 1913-6-18 4198 Humboldt Dinsmore's Ranch opposite Buck Mt.; North Coast Ranges, Van Duzen R. Valley 762 Comment
  UC469454  Salix melanopsis Joseph P. Tracy 1931-9-7 9634 Humboldt Trinity R. Valley at Willow Creek Bridge; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481341  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC481828  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 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
  UC54764  Salix melanopsis P. E. Goddard 1901-7 16 Humboldt Hupa Comment
  CAS-BOT-BC129204  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129170  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 609 Comment
  CAS-BOT-BC129172  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CDA14419  Salix scouleriana P. Haggard 1996-3-18 s.n. Humboldt Eureka. 0 Comment
  HSC20083  Salix scouleriana W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  JEPS38417  Salix scouleriana W. L. Jepson 1932-8-1 16466 Humboldt Bull Creek 121 Comment
  UC506349  Salix scouleriana Joseph P. Tracy 1933-4-2 10958 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC519353  Salix scouleriana Joseph P. Tracy 1933-8-30 13056 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UCR142834  Salix scouleriana H. E. Parks 1931-5-14 0957 Humboldt North Coast, Little Larabee Bridge, Van Duzen River, 'alt. 450 m 195 Comment
  CAS-BOT-BC128960  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt Rocky exposed places, head of Brett Hole - Klamath Mountains 1828 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
  HSC20100  Salix sitchensis J. P. Tracy 1933-3-19 10930 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC96588  Salix sitchensis Gordon Leppig 2003-2-22 1817 Humboldt Mad River Beach, near parking lot 3 Comment
  UC1196703  Salix sitchensis Joseph P. Tracy 1933-3-5 10917 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  UC1196722  Salix sitchensis Joseph P. Tracy 1923-1-21 6138 Humboldt along Van Duzen R. Carlotta; Northern Coast Ranges, Van Duzen R. 30 Comment
  UC1356339  Salix sitchensis Theodore J. Crovello 1964-6-24 579 Humboldt 2.5 mi. s. of turnoff from U.S. 101 to Prairie Creek Redwood State Park (along Lost Man Creek 100 yds. w. of junction with U.S. 101); Lost Man Creek Comment
  UC469468  Salix sitchensis Joseph P. Tracy 1931-11-8 9748 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481382  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC490490  Salix sitchensis Joseph P. Tracy 1932-8-27 10745 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  CAS-BOT-BC176897  Salsola tragus Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  JEPS12746  Sambucus mexicana W. L. Jepson 1932-7-24 16390 Humboldt Mail Ridge 914 Comment
  JEPS57405  Sambucus mexicana L. R. Heckard with T. I. Chuang 1968-7-4 1982 Humboldt on Kneeland road 10 mi n Bridgeville Comment
  HSC59562  Sambucus racemosa var. racemosa Rick Lundquist 1979-4-6 3 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC89426  Sambucus racemosa var. racemosa P. A. Daly 1984-5-8 5 Humboldt Trinidad Head. 61 Comment
  SDSU2909  Sambucus racemosa var. racemosa D. F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on #101. Comment
  HSC104438  Sanguisorba officinalis J. Martin, Bianca Hayashi, Cheri Sanville 2012-8-28 Humboldt Northern end of Christmas Prairie Lake Comment
  UC154106  Sanicula arctopoides J. P. Tracy 1904-4-24 2021 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1073331  Sanicula arctopoides George B. Rossbach 1955-6-10 375 Humboldt between Fairhaven and (end of sandy point) off Eureka (near Humboldt Bay (lagoon) and lighthouse) Comment
  SEINET3157023  Sanicula crassicaulis D. E. Anderson 1965-5-1 3563 Humboldt along Highway 96, 1.9 miles north of Willow Creek Comment
  UC1197095  Sanicula graveolens Joseph P. Tracy 1926-5-2 7448 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC642283  Sanicula laciniata Joseph P. Tracy 1935-5-25 13907 Humboldt Dobbyn Creek 152 Comment
  HSC68625  Sanicula tracyi Jacqueline Greenleaf 1980-7-16 239 Humboldt Near Buck Mtn. 1250 Comment
  RSA43855  Saponaria officinalis H. M. Pollard 1948-7-26 s.n. Humboldt Banks of Klamath River near Orleans. Comment
  UC412776  Sarcodes sanguinea P. E. Goddard 1906-6 681 Humboldt ridge near <Lassick> Peak Comment
  JEPS945  Scandix pecten-veneris Joseph P. Tracy 1923-6-20 6342 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC7495  Scirpus congdonii J. P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  UC249743  Scirpus congdonii Joseph P. Tracy 1924-7-4 6707 Humboldt Snow Camp , Snow Camp (Northern Coast Ranges) 1371 Comment
  HSC91622  Scirpus microcarpus E. Mackey 1986-7-21 Humboldt Patrick's Point State Park Comment
  UC668008  Scirpus microcarpus Joseph P. Tracy 1932-7-14 10561 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CDA39145  Scirpus microcarpus Gordon Leppig 1998-6-26 861 Humboldt Arcata; Alder Grove Pond, south side of pond. Comment
  HSC79367  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Above Dead Man's Gulch, in upper meadow 213 Comment
  RSA167281  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Trinity River Valley, at Willow Creek: Dusky s Spring 152 Comment
  UC1100832  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1198 Humboldt marsh and bog land at the southern outskirts Eureka; southern outskirts Eureka Comment
  UC668017  Scirpus pungens Joseph P. Tracy 1927-9-25 8368 Humboldt at Eureka (near bay shore) 6 Comment
  CHSC2305  Scoliopus bigelovii V. Holt 1933-4-10 Humboldt Comment
  CAS-BOT-BC517413  Scoliopus bigelovii Doris K. Kildale 1927-3-19 2903 Humboldt Luffenholtz Creek near Trinidad Comment
  HSC15638  Scoliopus bigelovii O. E. Rogers 1962-3-17 29 Humboldt S of Kneeland 671 Comment
  SEINET3991325  Scoliopus bigelovii Unknown 1956-3-17 104 Humboldt South boundary of Jensen grove, off US Highway 101 Comment
  SEINET926248  Scoliopus bigelovii Joseph P. Tracy 1950-1 18611 Humboldt 1 mile west of Dinsmore's. Along Van Duzen River, opposite Buck Mountain. 762 Comment
  UC1225840  Scutellaria antirrhinoides Joseph P. Tracy 1942-6-15 17167 Humboldt 5 mi n of Garberville 152 Comment
  UC1713599  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  UCD125670  Scutellaria antirrhinoides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC154015  Scutellaria californica Joseph P. Tracy 1908-6 2817 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC14401  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  RSA178561  Sedum divergens Joseph P. Tracy 1950-8-8 19294 Humboldt Croghan Hole, on Trinity Summit Comment
  UC1488731  Sedum laxum Marc Baker 1980-7-11 2769 Humboldt near Red Mountain; Blocksburg Quad., near Red Mountain 230 Comment
  HSC103086  Sedum laxum subsp. flavidum Sydney Carothers 2014-6-22 8 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC63212  Sedum laxum subsp. heckneri M. A. Baker 1979-7-6 1015 Humboldt W slope of Rattlesnake Creek Ridge overlooking Red Cap Creek, outcrop and road cut of FS Rd. 10N01 Comment
  HSC56937  Sedum obtusatum subsp. retusum G. L. Clifton, Butler 1979-7-23 9405 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC57996  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11759 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC166026  Sedum spathulifolium Joseph P. Tracy 1906-5-6 2449 Humboldt near Hydesville; Northern Coast Region, near Hydesville 182 Comment
  CAS-BOT-BC63824  Sedum spathulifolium L. E. Smith 1913-4-2 s.n. Humboldt Between Pitt and Hermit. Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC40630  Sedum spathulifolium var. spathulifolium Thomas W. Nelson, Jane P. Nelson 1977-5-15 3379 Humboldt Beside Hwy. 36 just W of Grizzly Creek Campground 152 Comment
  JEPS19021  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  UC1713630  Selaginella oregana Don Branscomb 1957-12-26 Humboldt Lookout rock Patrick's Point Comment
  UC302053  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCR123957  Senecio bolanderi George K. Helmkamp, E. A. Helmkamp 2001-7-8 6974 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
  HSC48773  Senecio elegans Brad Klipfel 1975-5-22 621 Humboldt Near the city of Eureka airport S of Samoa Comment
  JEPS37085  Senecio glomeratus W. L. Jepson 1902-6 1935 Humboldt Korbel to Angel's Ranch Comment
  UC1118079  Senecio glomeratus H. S. Yates 1936-6-18 5735 Humboldt 2 mi n Big Lagoon; Rocky Pt Quad. 30 Comment
  CAS-BOT-BC363808  Senecio integerrimus var. exaltatus Doris K. Kildale 1926-4-11 1763 Humboldt McLellan Mountain 822 Comment
  CAS-BOT-BC364020  Senecio integerrimus var. major Doris K. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  CAS-BOT-BC364021  Senecio integerrimus var. major Doris K. Kildale 1926-5-2 1896 Humboldt Willow Creek Flat 152 Comment
  HSC82545  Senecio integerrimus var. major Thomas W. Nelson 1979-7-11 5003 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1199241  Senecio integerrimus var. major Joseph P. Tracy 1938-5-1 15728 Humboldt Willow Creek Trinity River Valley 152 Comment
  SJSU8451  Senecio minimus H. T. Harvey 1977-8-8 620 Humboldt delta lands of Eel R c. 4 mi NW of Ferndale Comment
  UC581694  Senecio minimus Joseph P. Tracy 1936-7-26 15052 Humboldt w of Redwood Creek; Trinity Highway, Bald Mt. Ridge 670 Comment
  UCSC000817  Senecio sylvaticus H. L. Person 1932-7-18 s.n. Humboldt Eureka, Freshwater, Forest: T4NRIE Comment
  HSC57356  Senecio triangularis Overton, Butler 1979-7-26 10051 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC29884  Senecio vulgaris Thomas W. Nelson 1971-11-11 600 Humboldt Foot of Murray Rd., McKinleyville. Comment
  UCD135823  Senecio vulgaris H. E. Parks; S. T. Parks. 1943-6-1 24234 Humboldt Spruce Cove, Trinidad. 60 Comment
  HSC12953  Sequoia sempervirens Steve Dorei 1970-10-8 10 Humboldt HSU campus, near corner of Union St. and st. leading to gyms Comment
  JEPS48279  Sequoia sempervirens Lincoln Constance 1934-6-4 822 Humboldt road to Dyerville (Look Prairie and Bull Cr.); Bull Creek region, South Fork Eel River Comment
  SEINET3876316 Image available Sequoia sempervirens Jack D. Brotherson 1982-7-14 3314 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  POM17181  Sherardia arvensis J. B. Feudge 1923-8-1 49 Humboldt Fortuna. 15 Comment
  SEINET6993447  Sherardia arvensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UCD116621  Sidalcea diploscypha K. Esau 1934-5-7 s.n. Humboldt above Fort Seward. 457 Comment
  CAS-BOT-BC205565  Sidalcea malachroides Volney Rattan 1883-6-30 s.n. Humboldt Mad River Comment
  CAS-BOT-BC205577  Sidalcea malachroides F. H. Utech 1986-5-23 86 -399 Humboldt Ca. 3.0 mi NW of Petrolla on Mattole Road (Humboldt Co. hwy F3C) enroute to Capetown 80 Comment
  UC668139  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt 6 mi se Arcata (Fickle Hill); se of Arcata, Fickle Hill 609 Comment
  RSA144570  Sidalcea malviflora subsp. patula Peter H. Raven, R. Snow 1958-7-20 s.n. Humboldt 2 miles south of jct. of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  UC176967  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3597 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC23746  Sidalcea oregana Tim Baroni 1971-7-6 120 Humboldt 10 mi. S of Ferndale on Mattole Rd. Comment
  CAS-BOT-BC213157  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  UC205633  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-8-29 5394 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  HSC58187  Sidalcea oregana subsp. spicata G. L. Clifton, Griswold 1979-8-2 12277 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CDA18218  Silene californica G. D. Barbe, T. C. Fuller 1974-6-17 1846 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  RSA185758  Silene californica John H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junction with Klamath River. Comment
  SEINET11944295  Silene californica L. K. Henry 1971-1 Humboldt Along rt. 36 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UC1541414  Silene californica H. E. and S. T. Parks June 1928 258 Humboldt Longvale 182 Comment
  JEPS23253  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  UC668097  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC174878  Silene campanulata subsp. glandulosa Carl B. Wolf 1927-8-27 1155 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  UC302999  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC103098  Silene hookeri M. Mesler, Carol Wilson 2010-6-18 825 Humboldt Hwy 36, near mile marker 32.53 771 Comment
  HSC103763  Silene hookeri M. R. Mesler, Sydney Carothers 2013-6-3 1482 Humboldt Near Orleans, ca. 0.6 miles west of NR 15 on FS rd 12N20 790 Comment
  CAS-BOT-BC389050  Silene laciniata subsp. californica J. H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junct. with Klamath River Comment
  CAS-BOT-BC389051  Silene laciniata subsp. californica J. Clausen 1932-9-17 676 Humboldt On a roadbank between Willow Creek and Redwood Creek 304 Comment
  HSC4172  Silene laciniata subsp. californica Lincoln Constance, A. A. Beetle 1940-5-16 2610 Humboldt Above Alton Comment
  HSC4219  Silene lemmonii J. P. Tracy 1932-7-12 10452 Humboldt Trinity Summit, near Corral Prairie 1585 Comment
  SEINET6883434  Sisyrinchium bellum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles sou theast of Kneeland. Comment
  UC1541352  Smilacina stellata W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  CHSC52961  Solanum aviculare L. P. Janeway 1984-5-16 803 Humboldt On the North Spit of Humboldt Bay; alongside the dirt road on south side of the Coast Guard Station. 3 Comment
  HSC21297  Solanum aviculare Larry Berti 1968-10-13 Humboldt Comment
  HSC47104  Solanum aviculare J. O. Sawyer 1978-11-5 3324 Humboldt Old Stagecoach rd. 1/5 mi. N of entrance to Trinidad Beach State Park Comment
  POM247118  Solidago californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC365433  Solidago elongata Doris K. Kildale 1926-8-17 1211 Humboldt Trinity Summit 1828 Comment
  LA204223  Solidago spathulata Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  POM254120  Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt At Samoa. Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC35009  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  CAS-BOT-BC235370  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  HSC10996  Spartina densiflora J. A. Waller 1965-5-15 34 Humboldt Samoa Rd. near Emmerson's Mill. Comment
  UCD92969  Spartina densiflora Keith B. Macdonald 1965-9-1 s.n. Humboldt Arcata, along Humboldt Bay. Comment
  HSC4236  Spergula arvensis S. J. Hawks 1965-4-6 22 Humboldt Clam Beach Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  HSC37993  Spergularia rubra Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  POM312888  Spiraea douglasii Malcolm A. Nobs, S. Galen Smith 1949-8-9 1226 Humboldt 1 m N of Arcata at jct of Hwys 101 and 229. Mad River Valley. Comment
  UCR18824  Spiraea douglasii Charlotte M. Hoak 1931-7-14 s.n. Humboldt Alton Comment
  HSC55605  Spiraea splendens var. splendens Overton, Butler 1979-7-23 9444 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC16656  Spiranthes porrifolia J. Wendell Howe 1932-6-19 Humboldt Redway Comment
  UC1196406  Spiranthes romanzoffiana Joseph P. Tracy 1944-7-3 17487 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS64507  Spiranthes romanzoffiana Milo S. Baker 1923-8-23 326 b Humboldt near Carlotta; Wilder's Comment
  UC1239726  Stachys ajugoides var. ajugoides Joseph P. Tracy 1942-6-2 17093 Humboldt 1 mi e Alton 30 Comment
  CHSC32901  Stachys ajugoides var. rigida James P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC175781  Stachys ajugoides var. rigida Joseph P. Tracy 1912-7-27 3881 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCLA71295  Stachys chamissonis C. Epling Aug 1933 Humboldt Clam beach Comment
  UCLA54082  Stachys chamissonis H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  CHSC109578  Stachys mexicana B. Castro; L. P. Janeway 2004-9-11 1475 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Low ground, flats partially shaded by alder trees festooned with English ivy; base of steep slopes of coatal terrace, back edge of beach stabilized dunes along old road. 4 Comment
  HSC45596  Stachys mexicana Diane L. Reed 1978-5-27 139 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  HSC79495  Stachys rigida var. quercetorum Kenneth Clark 1979-7-1 451 Humboldt Dead Man's Gulch, lower terrace 6 Comment
  SD93025  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 218 Humboldt Highway 101 at Duncan Grove. 91 Comment
  HSC4270  Stellaria media J. L. Baker 1965-3-9 6 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC89487  Stellaria media P. A. Daly 1986-3-12 67 Humboldt Trinidad Head, along trail 61 Comment
  HSC89600  Stellaria media M. Roantree 1985-4-28 24 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC98400  Stellaria media R. D. Modafferi 1965-4-8 3 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UC1198340  Stellaria nitens Joseph P. Tracy 1933-6-13 12563 Humboldt near Hoopa Mountain summit (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  POM174066  Stephanomeria virgata Joseph P. Tracy 1918-9-29 5104 Humboldt S Fork Eel River, 4 miles above the mouth. 61 Comment
  HSC38490  Stipa nelsonii subsp. dorei D. E. Anderson, J. P. Smith 1971-6-18 - 1095 Humboldt Horse Mtn. Comment
  HSC39681  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1976-6-16 2741 Humboldt Just W of Alder Springs. 1524 Comment
  HSC17760  Stuckenia pectinata Rollin Sparrowe 1962-5-16 25 Humboldt S of road Comment
  HSC73741  Swertia radiata M. A. Baker 1980-7-19 2995 Humboldt Near Bret Hole. 1814 Comment
  JEPS46345  Swertia radiata Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC198632  Swertia radiata Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  CAS-BOT-BC269572  Symphoricarpos albus var. laevigatus Carl D. Duncan 1920-9-22 337 Humboldt Hoopa Comment
  UC1175131  Symphoricarpos albus var. laevigatus P. C. Everett and E. K. Balls 1959-10-25 23959 Humboldt 14 mi w Willow Creek (along U.S. Hwy 299 to Arcata) 502 Comment
  UC1239537  Symphoricarpos mollis Joseph P. Tracy 1908-6 2782 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  JEPS40849  Symphyotrichum bracteolatum Joseph P. Tracy 1921-9-4 5954 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley, South Fork of T 152 Comment
  CAS-BOT-BC99168  Symphyotrichum chilense L. R. Abrams 1927-8-31 12056 Humboldt Marshes along highway between Eureka and Arcata Comment
  HSC5048  Symphyotrichum chilense Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  CAS-BOT-BC98975  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1216 Humboldt Trinity Summit near Ranger Station 1828 Comment
  UC205155  Symphyotrichum hendersonii Joseph P. Tracy 1919-9-18 5224 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  JEPS26263  Synthyris reniformis Joseph P. Tracy 1924-2-10 6601 Humboldt Bald Mountain at Hungry Hollow; Bald Mountain 762 Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  CAS-BOT-BC376720  Tanacetum bipinnatum Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CAS-BOT-BC376737  Tanacetum bipinnatum L. R. Abrams 1916-7-18 6122 Humboldt Arcata to Trinidad Comment
  UCD136742  Tanacetum bipinnatum Linda M. Barker 1976-6-1 1561 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC376721  Tanacetum bipinnatum Paul F. Covel 1937-7-13 1056 Humboldt Bar near mouth Eel River Comment
  HSC93511  Tanacetum bipinnatum Gordon Leppig 1998-5-25 789 Humboldt Big Lagoon State Park. 2 Comment
  UCSB15911  Tanacetum bipinnatum Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  RSA18773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UC494200  Tanacetum vulgare H. E. and S. T. Parks 1930-9-14 786 Humboldt near Big Lagoon (along highway) Comment
  UC1239515  Taraxacum officinale Joseph P. Tracy 1924-5-4 6666 Humboldt Bridgeville Northern Coast Ranges 243 Comment
  UC902012  Taraxacum officinale Harold E. Parks and Joseph P. Tracy 1949-6-25 11671 Humboldt Box Camp Meadow Trinity Summit 1524 Comment
Read comments
Aug 5 2009
  HSC34631  Taraxacum officinale A. M. Montalvo 1975-4-9 202 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  RSA259589  Tauschia kelloggii Thomas W. Nelson, James Nelson 1975-5-24 1840 Humboldt McKeown Ranch north of Dinsmore Comment
  CAS-BOT-BC85208  Taxus brevifolia L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  UC54785  Taxus brevifolia P. E. Goddard Jul 1 1901-Aug 1 1901 127 Humboldt Mud Springs Trinity Summit Trail, Mud Springs Comment
  HSC20430  Tellima grandiflora D. E. Anderson 1962-3-31 1964 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  JEPS49695  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Range 121 Comment
  UC1196166  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1939-5-14 16291 Humboldt Dinsmore's Van Duzen River 746 Comment
  UC162827  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1906-6-24 2501 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  UCD96769  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1948-6-13 18037 Humboldt Larrabee Creek, 7 miles NW of Blocksburg. 304 Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. Comment
  UC1198809  Thlaspi montanum var. montanum Harold E. Parks and Joseph P. Tracy 1934-6-14 11029 Humboldt Horse Mt. 1402 Comment
  CAS-BOT-BC81320  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 mi. E of Arcata along Highway 299 316 Comment
  HSC1302  Thuja plicata R. A. Rasp 1964-5-20 45 Humboldt HSC Campus Comment
  HSC13053  Thuja plicata D. Santana, C. Kline Oct 1970 9 Humboldt HSC Campus Comment
  LA31710  Thuja plicata H. E. Parks; 1932-7-25 1139 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  NY17203  Thuja plicata E. K. Balls 1953-10-11 18632 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC1198257  Thuja plicata H. E. Parks and Joseph P. Tracy 1932-8-13 10346 Humboldt vicinity of Trinidad; Northern Coast Region 60 Comment
  UCD134040  Thuja plicata Roman Gankin 1965-8-7 562 Humboldt Near edge of sphagnum bog just north of parking area; Big Lagoon County Park. Comment
  SEINET10613416  Thuja plicata Harold E. Parks 1932-7-25 Parks 1139 Humboldt Camp 21, Hammond Lumber Company, Trinidad. Small trees in bogs. Host of Keithia thujina, a fungus new to California. Herbarium of the University of California Comment
  CAS-BOT-BC88325  Thysanocarpus curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles northeast of Weithchpec near Bluff Creek Campground. 140 Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  SBBG70435  Tiarella trifoliata var. unifoliata L. Rowntree 1931-7-23 Humboldt Carlotta Comment
  JEPS49714  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-19 82 c Humboldt canyon near Carlotta; canyon near Carlotta Comment
  RSA246663  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-4 35127 -b Humboldt Wailaki Recreation site. 518 Comment
  UC11935  Tiarella trifoliata var. unifoliata J. Burtt Davy 1899-6-13 5513 Humboldt Redwoods near Camp Grant (along the Eel River); along the Eel River Comment
  UC1212146  Tiarella trifoliata var. unifoliata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4753 Humboldt bog at Happy Camp Happy Camp (just over Trinity County line); Inner North Coast Ranges 914 Comment
  SEINET12217530  Tiarella unifoliata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -291 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC38208  Tolmiea diplomenziesii Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  HSC103857  Torilis arvensis G. D. Barbe, T. C. Fuller 1974-6-17 1829 Humboldt Thorne Road, 4 mi. W of Redway, enroute to Shelter Cove Comment
  RSA12424  Torreyochloa pallida var. pauciflora C. B. Wolf 1934-7-2 5870 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  HSC79461  Toxicodendron diversilobum Kenneth Clark 1980-6-14 660 Humboldt W slope above Dead Man's Gulch. 122 Comment
  JEPS63914  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16430 Humboldt on way to Bull Creek Dyerville Comment
  CAS-BOT-BC323056  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA699238  Trichostema laxum J. R. Bruff 1937-8-17 930 Humboldt Richardson Grove, bed of Eel River. Comment
  UC154002  Trichostema oblongum Joseph P. Tracy 1908-6 2824 Humboldt Buck Mountain, NW slope Northern Coast Ranges 1219 Comment
  HSC97593  Trientalis latifolia Steven Lee 2004-4-26 27 Humboldt E several mi. from Arcata on Jacoby Creek Rd. Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  UC1198627  Trientalis latifolia Joseph P. Tracy 1935-5-24 13816 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  RSA245214  Trientalis latifolia E. W Styskel 1963-5-16 24 Humboldt 3 miles SE of Korbel, Snow Camp Road. 290 Comment
  UC165509  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1321 Humboldt Hupa Indian Reservation (now spelled Hoopa on modern maps) North Coast Ranges 152 Comment
  JEPS65949  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-10 9940 Humboldt 3 mi s Point of Cape Mendocino (sw slopes fronting the ocean); Northern Coast Ranges Comment
  UC1197247  Trifolium albopurpureum var. dichotomum H. E. Parks and Joseph P. Tracy 1932-5-12 9987 Humboldt near Alton (Van Dugen river bar); Northern Coast Ranges Comment
  UC495667  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-17 10094 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  CDA4307  Trifolium angustifolium J. R. Keck Jr., W. Simas 1973-5-3 Humboldt Bear River Road, between Cook & Morrison. 0 Comment
  UC1197494  Trifolium barbigerum J. P. Tracy 1910-5-22 3138 Humboldt immediate vicinity Eureka 0 Comment
  UC1197180  Trifolium bifidum var. decipiens J. P. Tracy 1899-5-26 47 Humboldt immediate vicinity Eureka 0 Comment
  UC1223327  Trifolium campestre Joseph P. Tracy 1936-8-1 15060 Humboldt 6 mi se Blue Lake (near Bear Canyon Creek, in logged-off country) 365 Comment
  UC1103442  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1916-4-30 4684 Humboldt Bucksport Northern Coast Ranges, Eureka 60 Comment
  POM160884  Trifolium dichotomum Joseph P. Tracy 1925-5-30 7023 Humboldt Mcclellan Mountain. 823 Comment
  SD87601  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt Coast, 20 miles north of Eureka Comment
  UC1223467  Trifolium dubium Joseph P. Tracy 1939-4-29 16261 Humboldt Orleans 121 Comment
  RSA244958  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  HSC1864  Trifolium fucatum Elrid H. Spinas 1948-5-15 20 Humboldt Horse Mtn. Comment
  HSC71441  Trifolium fucatum J. P. Smith 1971-10-9 5044 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  UC1197197  Trifolium gracilentum Joseph P. Tracy 1909-5-2 2965 Humboldt near Cutten and McDonald Tract; Eureka Comment
  UC16569  Trifolium hybridum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5601 Humboldt Arcata Comment
  HSC58663  Trifolium longipes G. L. Clifton, Griswold 1979-8-1 12012 Humboldt Near High Springs, close to the town of Hoopa 1798 Comment
  HSC98880  Trifolium longipes subsp. hansenii Cara Witte 2007-6-1 166 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  HSC15234  Trifolium longipes subsp. oreganum D. E. Anderson 1965-6-1 3770 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  HSC99727  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 22 Humboldt Buck Flat on Titlow Hill Rd. 1512 Comment
  UC1197239  Trifolium macraei J. P. Tracy 1899-6-2 40 Humboldt vicinity Eureka (Bucksport) 0 Comment
  CHSC35554  Trifolium microcephalum James P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC22536  Trifolium microcephalum D. E. Anderson, J. P. Smith 1970-5-10 5057 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC71451  Trifolium microcephalum J. P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC73818  Trifolium microcephalum Gail Newton 1980-6-7 118 Humboldt Near Brush Mtn. 1128 Comment
  UC1223355  Trifolium microcephalum Joseph P. Tracy 1939-4-29 16237 1/2 Humboldt mouth of Slate Creek (banks of Klamath River) Comment
  UC176603  Trifolium microcephalum Joseph P. Tracy 1913-6-22 4268 Humboldt opposite Buck Mtn (Dinsmore's Ranch in valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1197541  Trifolium microdon J. P. Tracy 1910-5-22 3139 Humboldt Eureka vicinity 0 Comment
  POM214881  Trifolium microdon Joseph P. Tracy 1927-6-5 8102 Humboldt Valley of S Yager Creek Comment
  UC16635  Trifolium microdon Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mtn Comment
  JEPS4174  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt between Miranda and Redway (South Fork Eel Rive); North Coast Ranges 91 Comment
  UC1197485  Trifolium obtusiflorum Joseph P. Tracy 1911-6-29 3267 Humboldt near Hydesville (Van Duzen River); Northern Coast Region 60 Comment
  UC160990  Trifolium obtusiflorum Joseph P. Tracy 1911-7-10 3488 Humboldt near mouth of Willow Creek (along Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1197043  Trifolium pratense Joseph P. Tracy 1911-6-25 3264 Humboldt Eureka Northern Coast Region 0 Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  UC162783  Trifolium pratense J. P. Tracy 1909-6-6 2987 Humboldt immediate vicinity Eureka 0 Comment
  HSC23732  Trifolium repens Tim Baroni 1971-7-6 117 Humboldt 8 mi. S of Ferndale on Mattole Rd. Comment
  UC33491  Trifolium repens Chesnut and Drew 1888-7-11 Humboldt Eureka Comment
  UC169057  Trifolium variegatum var. melananthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3594 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC160946  Trifolium variegatum var. melananthum J. P. Tracy 1900-5-22 820 Humboldt Eureka vicinity 0 Comment
  JEPS4134  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC1223536  Trifolium variegatum var. variegatum Joseph P. Tracy 1935-5-24 13815 Humboldt Lentell Addition Eureka Comment
  UC175673  Trifolium variegatum var. variegatum Joseph P. Tracy 1913-6-20 4232 Humboldt n w slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  HSC45127  Trifolium willdenovii R. Sutherland 1978-5-19 9 .19578 Humboldt 131 Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  RSA32731  Trifolium wormskioldii A. A. Heller 1923-7-9 13781 Humboldt Near Arcata. Comment
  POM349598  Trifolium wormskioldii M. B. Dunkle 1936-8-18 4814 Humboldt South of Eureka. 91 Comment
  SEINET10862710  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1924-7-23 Heller 13876 Humboldt Wet soil in a ditch along the road leading to the lighthouse on Trinidad Head. Comment
  UCR121761  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  UC1222530  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt head of S. Yager Comment
  HSC101808  Trillium kurabayashii Kjirsten A. Wayman 2012-4-1 304 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  HSC28002  Trillium kurabayashii Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  UC1197828  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  UCR3521  Trillium ovatum David Whistler, H. M. Whistler 1964-7-31 640731- 9 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  UCD139911  Trillium ovatum Anstruther Davidson 1930-1 s.n. Humboldt Kelseyville. Comment
  UCD19981  Trillium ovatum C. H. Lamoureux; R. Gankin 1956-3-17 1042 Humboldt Near southern boundary of Jensen Grove, on Hwy 101 between Meyers and Miranda. Comment
  SEINET10459890  Triodanis perfoliata Chandler CHANDLER 1514 Humboldt Klamath River, somes bar. 427 Comment
  JEPS26219  Triphysaria eriantha subsp. eriantha J. P. Tracy 1911-5-30 3207 Humboldt at Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC146240  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1904-5-1 2040 Humboldt region about Humboldt Bay at Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC902255  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt at Bucksport (near Eureka); , at Bucksport 6 Comment
  CHSC40207  Triphysaria pusilla L. P. Janeway 1984-5-13 772 Humboldt Along the Kneeland/ Bridgeville Road ca 11 mi east of the Kneeland post office. 566 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
  UCSB15950  Triphysaria versicolor subsp. faucibarbata Breedlove, Dennis 1962-6-7 Humboldt 3 miles south of southern city limits of Eureka on U.S. Highway 101 3 Comment
  UCD123426  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-13 1424 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC199626  Trisetum canescens W. R. Dudley 1899-6-1 s.n. Humboldt Eel River near Dyerville Comment
  HSC32517  Trisetum cernuum D. E. Anderson, S. Dowty, T. Nelson 1972-6-17 5711 Humboldt McKeown Ranch, N of Dinsmore Comment
  SEINET198591 Image available Trisetum cernuum H. E. Parks, S. T. Parks 7551 Humboldt Spruce Cove Trinidad. 61 Comment
  UC1103146  Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Newells Camp Northern Coast Ranges (on old Kneeland Prairie Road) 304 Comment
  UC40083  Trisetum cernuum Harley P. Chandler May, 1901 1176 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  SEINET200769  Triteleia bridgesii Joseph P. Tracy 1949-6-25 18345 Humboldt Trinity Summit Mud Springs in serpentine area 1341 Comment
  UC1197724  Triteleia bridgesii Joseph P. Tracy 1925-6-7 7066 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  HSC32556  Triteleia hyacinthina Thomas W. Nelson 1973-7-10 1034 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  CAS-BOT-BC519143  Triteleia hyacinthina M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville Comment
  JEPS559  Triteleia hyacinthina Joseph P. Tracy 1937-7-19 15451 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  CAS-BOT-BC526353  Triteleia laxa Ella Dales Cantelow 1939-6-4 3916 Humboldt 11.3 miles north of Garberville, road to Alder Point Comment
  HSC26871  Triteleia laxa Clifton Raymond Chesbrough 1973-6-19 95 Humboldt 0.5 mi. N of College Cove along coast Comment
  RSA36387  Triteleia laxa E. K. Balls, Lee W. Lenz 1956-6-12 21663 Humboldt 23 miles southwest of Willow Creek along U.S. Highway 299 toward Arcata 640 Comment
  UC30074  Triteleia laxa P. E. Goddard 1901-8-6 190 Humboldt Regna Comment
  IRVC27661  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Immediate vicinity of Eureka; near Ryan's Slough Hill. 0 Comment
  UC1130583  Typha latifolia H. S. Yates 1926-6-23 5866 Humboldt 2 mi nw Fortuna; Rohnerville Quad. Comment
  HSC41923  Umbellularia californica Ed Cope 1977-4-23 25 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC62857  Umbellularia californica J. M. DiTomaso 1979-4-15 877 Humboldt Richardson Grove State Park, 80mi S of Eureka on Hwy. 101 Comment
  SEINET12104679  Umbellularia californica E. A. York 1990-1-10 2667 Humboldt USGS Redwood Field Station, Arcata Comment
  JEPS9172  Utricularia macrorhiza Joseph P. Tracy 1930-8-3 9146 Humboldt on old rd. to Dinsmore's (pond near Little Van Duzen R.) 762 Comment
  HSC7945  Vaccinium membranaceum J. P. Tracy 1936-8-7 15096 Humboldt Trinity Summit, head of Little Horse-Linto Creek 1372 Comment
  POM232033  Vaccinium ovatum I. L. Wiggins 1930-6-25 4613 Humboldt Sand dunes 2 miles north of Samoa. Comment
  UCD118109  Vaccinium ovatum T. I. Storer 1931-7-1 2221 Humboldt Coast. Comment
  UCD166886  Vaccinium ovatum Colleen Rossier 2016-9-16 4 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #2. 633 Comment
  SEINET11972535  Vaccinium ovatum K. S. Erdman 1970-1 4799 Humboldt Cal-Barrow Road, 3 mi E of Us 101 at E boundary of Prarie Creek Redwood State Park (Redwood N.P.) T1 Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  HSC48516  Vaccinium parvifolium Brad Klipfel 1974-9-17 581 Humboldt Horse Mountain area Comment
  HSC74355  Vaccinium parvifolium Gail Newton 1980-6-17 226 Humboldt Near Onion Mtn. 1341 Comment
  HSC7925  Vaccinium parvifolium J. Pursell 1964-10-18 10181 Humboldt Hwy. 299, 15 mi. N of Blue Lake Comment
  HSC100480  Vaccinium parvifolium Carl C. Marshall May 1886 217 Humboldt Woods, Humboldt Bay. Comment
  POM59403  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 s.n. Humboldt Scotia bluff, along Eel River from South Fork to Scotia. 61 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
  JEPS33028  Vancouveria planipetala W. L. Jepson 1934-5-7 16695 Humboldt Bull Creek Comment
  RSA259548  Vancouveria planipetala A. Montalvo, J. D. Ackerman 1974-7-17 377 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville. Comment
  UC556336  Vancouveria planipetala Mrs. Emanuel Fritz 1935-1 Humboldt along Redwood Highway between Miranda and Dyerville Comment
  HSC98057  Veratrum insolitum Cara Witte 2007-7-19 544 Humboldt Along National Forest 1. Approximately 1 mile south of turnoff to Cold Spring. 1423 Comment
  HSC102165  Veratrum viride M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1075 Humboldt Patterson Meadows 1566 Comment
  HSC21737  Verbena lasiostachys D. E. Anderson 1963-10-6 2880 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC23492  Veronica americana R. A. Vanbianchi 1971-9-10 83 Humboldt Along Fieldbrook Rd., 0.7 mi. from junction with old Hwy. 299 Comment
  HSC55630  Veronica americana Walter Overton, Marvin Butler 1979-7-24 9628 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  RSA46832  Veronica americana Doris K. Kildale 1926-5-9 1988 Humboldt Kneeland Prairie. Comment
  SD88369  Veronica americana Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  HSC21208  Veronica persica J. W. Johnson 1962-4-8 1207 Humboldt Arcata, Mad River Co. Park Comment
  HSC21217  Veronica persica D. K. Smith 1968-1-16 1 Humboldt 0.5 mi. S of Blue Lake on West End Rd. Comment
  HSC75486  Veronica serpyllifolia subsp. humifusa J. O. Sawyer 1980-7-18 3609 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1197477  Vicia americana var. americana Joseph P. Tracy 1933-5-20 12255 Humboldt near Petrolia (Mattole River); North Coast Region, Mattole River 15 Comment
  UC175633  Vicia americana var. americana Joseph P. Tracy 1913-6-20 4224 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  UC1197464  Vicia americana var. americana Joseph P. Tracy 1913-7-20 4372 Humboldt slopes between Three Creeks and top of Berry Mountain; Northern Coast Ranges 1066 Comment
  UC1222598  Vicia americana var. americana Joseph P. Tracy 1946-6-15 17569 Humboldt w of Redwood Creek (on Trinity Highway, at Green Point); Green Point 457 Comment
  UC709409  Vicia faba Joseph P. Tracy 1940-4-7 16527 Humboldt Bayside 15 Comment
  POM68420  Vicia gigantea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC17003  Vicia gigantea Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5434 Humboldt near Hubbard Station Comment
  UC198656  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek Northern Coast Ranges, Eel River (along Eel River from South Fork to Scotia) 60 Comment
  HSC100118  Vicia sativa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  POM92410  Vicia sativa L. R. Abrams 1922-6-25 8238 Humboldt 2 miles south of Fortuna Comment
  HSC71615  Vicia sativa subsp. nigra J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA168917  Vicia tetrasperma Joseph P. Tracy 1948-8-7 18083 Humboldt Fickle Hill, 6 miles Southeast of Arcata. 610 Comment
  RSA181630  Vicia tetrasperma Doris K. Niles 1950-6-1 s.n. Humboldt Island in Eel River, Niles field. Comment
  UCSB61648  Vicia tetrasperma Ertter, Barbara; Delendick, Thomas 1987-5-16 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit Comment
  HSC104036  Vicia villosa subsp. villosa E. R. Fyer 2015-4-26 22 Humboldt At turnout off Samoa Blvd., at railroad bridge 3 Comment
  HSC15282  Vicia villosa subsp. villosa D. E. Anderson 1962-5-10 2210 Humboldt Lanphere's Comment
  HSC3233  Vinca major S. R. Johnson 1965-3-23 16 Humboldt 1 mi. N of Luffenholtz Beach Comment
  BLMAR258  Viola adunca Jennifer Anthony-Wheeler 1998-4-22 258 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC21763  Viola adunca Doris K. Kildale 1926-3-27 1662 Humboldt Gans Prairie - Bald Hills Comment
  HSC21770  Viola adunca J. F. Knezevich 1968-5-14 443 Humboldt 11 mi. S of Ferndale on the road to Cape Mendocino 305 Comment
  UC1198434  Viola adunca Joseph P. Tracy 1936-4-25 14799 Humboldt Trinidad 60 Comment
  UC164812  Viola adunca Joseph P. Tracy 1908-6-7 2615 Humboldt Butler Valley on Mad River; Northern Coast Ranges, Mad River 152 Comment
  UC502954  Viola adunca Joseph P. Tracy 1930-5-4 8693 Humboldt McClellan Mountain; Northern Coast Ranges 609 Comment
  HSC102036  Viola bakeri M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 939 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  RSA0006436  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., at Miller Spring. 1524 Comment
  UC1222521  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt at summit near Clear Lake; Grouse Mountain 1524 Comment
  CHSC24743  Viola glabella G. Strang 1976-4-10 5 Humboldt Highway 36, 10.5 mi e of U.S. 101. 97 Comment
  HSC72691  Viola glabella Gail Newton 1980-6-24 548 Humboldt Near Ladder Rock 1500 Comment
  HSC99356  Viola glabella K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 5 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC21792  Viola glabella R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-28 1382 Humboldt S side of Prairie Creek State Park about 1/4 mi. W of Hwy. 101 Comment
  JEPS50385  Viola glabella Lincoln Constance 1934-5-26 652 Humboldt near Founder's Tree (North Dyerville Flat); Bull Creek Region, South Fork Eel River, North Dyerville Fla 48 Comment
  CHSC97987  Viola hallii J. Breton; A. Livingston 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. south of Hwy 299 on NF1. 1357 Comment
  HSC21804  Viola hallii D. E. Anderson 1967-6-10 4367 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  UC668248  Viola lobata subsp. integrifolia Joseph P. Tracy 1936-8-7 15103 Humboldt head of Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1524 Comment
  CAS-BOT-BC530124  Viola lobata subsp. integrifolia Doris Kildale 1931-5-10 10577 Humboldt Snow Camp Comment
  UC1198451  Viola ocellata Joseph P. Tracy 1919-5-31 5163 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  JEPS50377  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Northern Coast Ranges, Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  UC1222514  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1950-4-20 18607 Humboldt opposite Buck Mountain (Along Van Duzen River, Dinsmore's); Dinsmore's, Van Duzen River 762 Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  UC164805  Viola sempervirens Joseph P. Tracy 1904-4-3 2006 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC1761996  Viola sempervirens Joseph P. Tracy 1913-5-4 4054 Humboldt Kneeland Prarie North Coast Ranges 762 Comment
  POM286646  Viola sempervirens Lyman D. Benson 1928-7-8 378 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC502968  Viola sempervirens Joseph P. Tracy 1927-5-15 8063 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC67529  Vitis californica J. P. Smith, Steve Selva 1970-6-14 3839 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  RSA226620  Vulpia microstachys D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca. 1-3 miles west of Hoopa. Comment
  HSC70921  Vulpia myuros R. York 1980-5-18 570 Humboldt Near Black Mountain 792 Comment
  BLMAR79  Whipplea modesta Jennifter Anthony-Wheeler 1994-6-2 79 Humboldt IAQUA, growing on logging rd in shaded coniferous forest 853 Comment
  CAS-BOT-BC128815  Whipplea modesta L. R. Abrams 1918-6-16 7145 Humboldt Lower arid Transition Zone, Willow Creek Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  JEPS60112  Woodwardia fimbriata W. L. Jepson 1932-7-30 16453 Humboldt Bull Creek, on bluff Bull Creek 121 Comment
  UCD137002  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  CHSC31279  Xerophyllum tenax Mark Stopher 1980-5-28 76 Humboldt On French Camp Ridge, 10 mi w of RTE 169 on Bald Hills Rd. 1000 Comment
  SD51273  Xerophyllum tenax Darley F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick, on Bald Mountain Road. Comment
  UC1173649  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  CAS-BOT-BC527080  Xerophyllum tenax Doris K. Kildale 1931-5-10 10683 Humboldt Snow Camp Comment
  CAS-BOT-BC527081  Xerophyllum tenax Doris K. Kildale 1925-9-5 1271 Humboldt Wire Grass Prairie, mid way on road from Orick to Martin's Ferry Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  UC154242  Yabea microcarpa Joseph P. Tracy 1906-5-13 2454 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC34745  Zeltnera muehlenbergii Thomas W. Nelson 1974-7-19 1670 Humboldt McKeown Ranch N of Dinsmore Comment
  UC146216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1908-6 2779 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 609 Comment



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