Search Results — 2000 specimen records retrieved (1347 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)
Results for search: County=HUMBOLDT; Source=All;   
Map/download results:
BerkeleyMapper with layers and yellow flags
Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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.
Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
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
  SEINET200991  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC78051  Abies grandis L. R. Abrams 1918-6-15 7100 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  UC72493  Abies grandis H. P. Chandler 1905-5-3 Humboldt Eureka Comment
  CHSC55899  Abronia latifolia L. P. Janeway 1987-7-31 2542 Humboldt Vicinity of Eureka; North spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC93532  Abronia latifolia Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  UC55499  Abronia latifolia J. P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach Samoa, Opp Eureka Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD150384  Abronia umbellata var. breviflora William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  CAS-BOT-BC330541  Acer circinatum Doris K. Kildale 1927-5-13 3134 Humboldt Redwood Creek at Berry's 289 Comment
  HSC24100  Acer glabrum var. torreyi J. O. Sawyer 1971-6-14 2380 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  HSC98961  Acer glabrum var. torreyi Cara Witte 2008-6-13 728 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  SEINET3098689 Image available Acer macrophyllum Joseph P. Tracy 1914-6-7 4493 Humboldt REgion about Humboldt Bay; valley of North Fork of Elk River. 0 Comment
  HSC40947  Achillea millefolium Linda M. Barker 1976-6-1 1541 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC73585  Achillea millefolium Gail Newton 1980-7-14 1495 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC81705  Achillea millefolium Thomas W. Nelson, Jane P. Nelson 1980-8-12 6238 Humboldt Logging roads S of Lundbar Hills 61 Comment
  UCD128333  Achillea millefolium H. E. Parks; S. T. Parks 1943-8-1 24246 Humboldt Egg Point, Trinidad. 121 Comment
  SD73184  Achlys californica Darley F. Howe 1969-6-4 4629 Humboldt 14.6 miles east of Alton on Highway 36 89 Comment
  UC169910  Achlys californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5397 Humboldt Hubbard's Station Comment
  UC472295  Achlys californica Mrs. M. H. Manning 1901-4 32 Humboldt near Hupa Comment
  CAS-BOT-BC400018  Achlys triphylla Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC56973  Achlys triphylla Overton, Butler 1979-7-23 9506 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA12436  Achlys triphylla C. B. Wolf 1934-7-2 5857 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  SEINET8072990  Achlys triphylla W. Roderick 1967-7-22 s.n. Humboldt Ca 5 miles E of Carlotta. 46 Comment
  CAS-BOT-BC210651  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  SEINET201040 Image available Achnatherum lemmonii J. P. Tracy 1913-5-4 4047 Humboldt Kneeland Prairie 762 Comment
  SEINET260372 Image available Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  SEINET5585535 Image available Achnatherum lemmonii Joseph P. Tracy 1938-1 15968 Humboldt Panther Gap, on the road from Bull Creek to upper Mattole 823 Comment
  UC682049  Achnatherum lemmonii G. L. Stebbins Jr. and G. L. Church 1941-5-27 3113 Humboldt 4.1 mi w on road to Bridgeville Dinsmore's 762 Comment
  CAS-BOT-BC216455  Achnatherum occidentale subsp. californicum Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Moutnain Trail 1524 Comment
  HSC69893  Acmispon denticulatus Thomas W. Nelson, Jane P. Nelson 1977-7-29 3639 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  SEINET957914  Acmispon micranthus J. P. Tracy 1917-1 4795 Humboldt Mouth of Little River. 6 Comment
  UCD104287  Acmispon parviflorus Linda M. Barker 1976-4-30 1410 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC502920  Aconitum columbianum Joseph P. Tracy 1932-7-20 10729 Humboldt meadow at Corral Prairie; Klamath Mts., Trinity Summit 1524 Comment
  HSC55613  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-23 9502 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC44521  Adenocaulon bicolor Brad Klipfel 1973-7-1 128 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  HSC76344  Adenocaulon bicolor Teresa Prendusi 1981-7-24 487 Humboldt Near Whiteys Peak 1585 Comment
  HSC4589  Adenocaulon bicolor Paul Shields Jun 1955 Humboldt 2 miles S. Weott Comment
  UC582522  Adenocaulon bicolor Joseph P. Tracy 1933-8-6 12940 Humboldt in shade of trees French Camp Ridge 1066 Comment
  HSC54522  Adiantum aleuticum Overton, Butler 1979-7-23 9453 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  UC62718  Adiantum aleuticum W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  RSA67622  Adiantum aleuticum P. A. Munz 1951-7-15 16547 Humboldt Racoon Creek. 305 Comment
  UC62716  Adiantum aleuticum Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5455 Humboldt near Camp Grant Comment
  CAS-BOT-BC65628  Adiantum jordanii Doris K. Kildale 1928-12-30 6767 Humboldt Phillipsville Comment
  CAS-BOT-BC202606  Aesculus californica Doris K. Kildale 1928-6-29 5056 Humboldt Chalk Mountain Comment
  SEINET12232136  Aesculus californica J. P. Tracy 1950-1 18847 Humboldt Petrolia Comment
  UC26061  Agastache urticifolia J. Burtt Davy 1899-6-12 Humboldt Elk Prairie; North Coast Ranges, Elk Prairie Comment
  UC165015  Ageratina occidentalis Joseph P. Tracy 1911-7-10 3557 Humboldt along Willow Creek ((tributary of Trinity River, Humboldt County), near its mouth); Northern Coast Ranges, Willow Creek 304 Comment
  UCD128632  Agoseris apargioides Linda M. Barker 1976-7-5 1643 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC70406  Agoseris grandiflora M. A. Baker 1980-6-7 1842 Humboldt Near Ammon Creek 732 Comment
  JEPS36264  Agoseris grandiflora Joseph P. Tracy 1921-7-24 5859 Humboldt Kneeland Prairie North Coast Ranges of California, Kneeland Prairie 762 Comment
  POM174060  Agoseris grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt At Eureka 0 Comment
  UC164824  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-4 3258 Humboldt at w side of, on hill slopes, near Willow Creek Trinity River; Northern Coast Ranges, Willow Creek 243 Comment
  SEINET6998444  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC169332  Agoseris heterophylla var. heterophylla Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3625 Humboldt near, (hillside between Hydesville and Alton) Hydesville; Northern Coast Ranges, Alton 30 Comment
  UC1199485  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1932-6-26 10272 Humboldt (ne of Bridgeville) Fort Baker Ranch; Bridgeville 762 Comment
  UC1222892  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1948-5-31 18015 Humboldt 1 mi sw, (near Alder Point) Harris; Alder Point 304 Comment
  POM126128  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear Ridge Ridge 305 Comment
  RSA249387  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  CAS-BOT-BC162047  Agrostis Doris K. Kildale 1925-8-17 1259 Humboldt Trinity Summit. 1917 Comment
  SEINET200945  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton. Northern Coast Region. 30 Comment
  UC1103373  Agrostis exarata J. P. Tracy 1900-9-9 953 Humboldt Yager Creek near Hydesville; Yager Creek 60 Comment
  UC1145154  Agrostis exarata Joseph P. Tracy 1938-7-11 16050 Humboldt sand dunes near Samoa Humboldt Bay 6 Comment
  UC249864  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  LA10251  Agrostis exarata var. exarata H. E. Parks; June 1935 5607 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC139697  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills on Chaparral Mountain. 457 Comment
  HSC74861  Agrostis hallii Gail Newton 1981-8-5 2363 Humboldt Near Bug Creek, E Fork. 820 Comment
  UC188851  Agrostis hallii Joseph Burtt Davy 1899-6-16 5564 Humboldt Alton Comment
  CAS-BOT-BC138875  Agrostis microphylla A. A. Heller 1923-7-8 13772 Humboldt Near Fortuna. Comment
  HSC38381  Agrostis oregonensis Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  POM207266  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  UCD53535  Agrostis stolonifera R. Tofsrud 1948-9-1 s.n. Humboldt Salmon Creek Ranch, about 8 miles S. of Eureka. Comment
  HSC47784  Aira caryophyllea Michael A. Watkins 1978-6-10 10 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  HSC70927  Aira caryophyllea R. York 1980-5-18 578 Humboldt Near Black Mtn 792 Comment
  HSC8856  Aira caryophyllea T. L. Ackerman 1964-5-15 50 Humboldt Sand dunes across from Fairhaven sign Comment
  HSC8862  Aira caryophyllea C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1341 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  UC1103300  Aira caryophyllea Joseph P. Tracy 1914-7-5 4553 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1103303  Aira caryophyllea J. P. Tracy 1899-7-22 330 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC102643  Aira elegans J. P. Smith 2009-5-31 12605 Humboldt Bald Hills Road. Comment
  UC1103305  Aira praecox Joseph P. Tracy 1935-6-8 13942 Humboldt Santa Clara Tract Northern Coast Ranges, Eureka 0 Comment
  UC526678  Aira praecox Joseph P. Tracy 1925-6-13 7099 Humboldt Eureka Northern Coast Ranges 0 Comment
  UCD55803  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  UCR37535  Alchemilla occidentalis L. P. Janeway 1983-5-1 255 Humboldt Northern Coast, North Spit (Samoa Peninsula). Sand dunes west of Samoa Rd and north of Coast Guard Station 6 Comment
  HSC98976  Allium acuminatum Cara Witte 2008-7-14 900 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC176166  Allium amplectens Joseph P. Tracy 1912-7-26 3844 Humboldt Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  HSC2957  Allium campanulatum J. P. Tracy 1932-7-12 10479 Humboldt Head of Brett Hole, Trinity Summit 1829 Comment
  CAS-BOT-BC464486  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lassecks Peaks 1661 Comment
  HSC39431  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2875 Humboldt E of Goat Hill lookout 1666 Comment
  SEINET199679  Allium falcifolium J. P. Tracy 1933-7-11 12658 Humboldt Horse Mtn 1433 Comment
  SEINET8191725  Allium triquetrum R. R. Halse 2013-3-28 8768 Humboldt Along US Hwy 101, ca 1.0 mile W of Orick. 4 Comment
  CAS-BOT-BC475482  Allium triquetrum E. C. Whitney 1965-4-19 s.n. Humboldt Lamphire Rd. and nearby field, Arcata Bottoms Comment
  CAS-BOT-BC476602  Allium unifolium Doris K. Kildale 1926-5-15 1971 Humboldt Fleener Creek. Comment
  UC666892  Allium validum Joseph P. Tracy 1934-7-18 13456 Humboldt swamp near top of mountain; Grouse Mountain 1630 Comment
  HSC45384  Allotropa virgata R. York 1978-5-20 171 Humboldt Along Bluff Creek Trail. 640 Comment
  HSC58328  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12626 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS58618  Alnus rhombifolia W. L. Jepson 1902-7-29 2123 Humboldt Supply Creek Hupa Valley 243 Comment
  UC249711  Alnus rhombifolia Joseph P. Tracy 1922-1-15 5983 Humboldt 4 mi above Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  HSC13111  Alnus rubra Steve Dorei 1970-10-13 40 Humboldt Arcata, HSC Campus W of Forestry Building along W edge of parking lot Comment
  HSC13115  Alnus rubra C. Kline, D. Santana Oct 1970 31 Humboldt HSC Campus Comment
  UC176169  Alnus rubra Joseph P. Tracy 1913-9-9 4392 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC503086  Alnus rubra Joseph P. Tracy 1931-9-26 9698 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  UC1225944  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC503082  Alnus viridis subsp. sinuata Joseph P. Tracy 1932-7-15 10604 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UCD55913  Alopecurus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC184154  Alopecurus aequalis Joseph P. Tracy 1912-7-31 3904 Humboldt n.w. slope Buck Mt.; Northern Coast Ranges, Burr Valley, Buck Mt. 1066 Comment
  HSC8884  Alopecurus geniculatus True Hoyle 1967-7-15 28267 Humboldt Dolson Ranch, 225 Bayside Rd., Arcata, next to Grade A milking barn 152 Comment
  HSC5658  Ambrosia chamissonis David Adams 1960-7-17 Humboldt 2 miles S of Samoa 0 Comment
  CAS-BOT-BC142884  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-7-17 3756 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC142893  Amelanchier alnifolia var. semiintegrifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC70685  Amelanchier alnifolia var. semiintegrifolia Gail Newton 1980-7-15 1574 Humboldt Near Sims Mtn. 1311 Comment
  SACT000320  Ammophila arenaria D. Shillingbury 1963-5-11 Humboldt Coastal strand Comment
  HSC3537  Amsinckia intermedia Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC562471  Anagallis arvensis Joseph P. Tracy 1932-5-10 9936 Humboldt Bear R. Ridge Northern Coast Ranges, Bear R. Ridge 609 Comment
  HSC17826  Anagallis arvensis C. Haley 1937-9-22 Humboldt Elk River Comment
  HSC28135  Anagallis arvensis J. D. Ackerman 1973-5-6 47 Humboldt Redcrest Comment
  UC165846  Anaphalis margaritacea J. P. Tracy 1901-7-29 1226 Humboldt immediate vicinity Eureka 0 Comment
  POM288758  Anaphalis margaritacea Lyman Benson 1929-7-12 1747 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  HSC36626  Anemone deltoidea A. M. Montalvo, J. D. Ackerman 1973-5-6 62 Humboldt Avenue of the Giants 3 mi. NW of Weott 274 Comment
  HSC76205  Angelica arguta Overton, Butler 1979-8-2 12536 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1197382  Angelica genuflexa Joseph P. Tracy 1946-8-25 17635 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  CHSC31297  Angelica hendersonii Mark Stopher 1980-7-2 122 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC642307  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  HSC21448  Angelica lucida B. R. Templeton 1962-5-15 Humboldt Hwy 101, 3 mi. S of Arcata. Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  SD58268  Angelica tomentosa var. hendersonii W. L. Jepson 1936-8-18 17945 Humboldt 1/2 mile south of Singley Creek, Sand dune by the sea Comment
  CAS-BOT-BC271452  Anisocarpus madioides Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta 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
  HSC56990  Antennaria suffrutescens Overton, Butler 1979-7-24 9553 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC49816  Anthoxanthum occidentale R. York 1979-4-21 243 Humboldt Behind the town of Korbel Comment
  SEINET11682981  Anthoxanthum occidentale K. S. Erdman 1970-1 4797 Humboldt Cal-Barrow Road 3 mi E of US 101 at E boundary of Prairie Creek State Park (Redwood N.P.) Comment
  JEPS71148  Anthoxanthum odoratum A. L. Hormay 1932-5-11 48 Humboldt Arcata Comment
  RSA286350  Anthoxanthum odoratum R. F. Thorne 1974-7-29 45071 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  JEPS5358  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1939-8-5 16384 Humboldt Dinsmore's 731 Comment
  JEPS83361  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 353 Humboldt about 2 mi se Miranda (0.9 mi wnw of Franklin K. Lane Redwood Grove, Phillipsville vicinity, on nnw side of Avenue of the Giants); Phillipsville, Garberville Quad. (15', 1951) 121 Comment
  UC162567  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1911-7-10 3482 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  UC902211  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1949-8-11 18468 Humboldt 2 to 6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  UC1400213  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt in the city of Arcata Arcata Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1197616  Apocynum androsaemifolium Joseph P. Tracy 1911-7-11 3518 Humboldt ridge next s. of Hoopa Valley (w. side of Trinity R. near Willow Creek); Northern Coast Ranges, Trinity R. 304 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  UCSB25082  Apocynum cannabinum Keefe, Joseph 1967-7-8 Humboldt Bank of Ell River, Miranda turnoff, 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  HSC102623  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1610 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UCD95545  Aquilegia formosa H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad. Comment
  HSC18048  Aquilegia formosa var. truncata Francis Winter 1960-4-23 Humboldt E end of bridge crossing Mad River, near Maple Creek 152 Comment
  HSC58192  Arabis glabra G. L. Clifton, Griswold 1979-8-2 12289 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC58354  Arabis glabra Walter Overton, Butler 1979-8-2 12692 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  CAS-BOT-BC167259  Aralia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UCD128220  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  HSC98832  Arbutus menziesii Cara Witte 2008-9-13 1040 Humboldt Forest Service Road 4N38. 1/2 mile south of intersection to Tri Board Camp. 1506 Comment
  UC213505  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC1198126  Arceuthobium campylopodum J. P. Tracy 1901-6-23 1178 Humboldt near Ryan's Slough Eureka vicinity 0 Comment
  UC902045  Arctostaphylos X candidissima Joseph P. Tracy 1949-8-4 18405 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  SEINET11995492  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1988-1 s.n. Humboldt on embankment between Summit Rd junction & electronic towers at Summit, Horse Mt. Recreational Area Comment
  BLMAR53  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1994-2-14 53 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  CAS-BOT-BC23792  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny. Comment
  CAS-BOT-BC23820  Arctostaphylos columbiana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  RSA622694  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27668 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
  UC1225898  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Devil's Canyon Big Lagoon 152 Comment
  UC397305  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6169 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD50758  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1167 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  HSC35598  Arctostaphylos knightii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2013 Humboldt French Camp, Bald Hills. Comment
  RSA632802  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27765 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633015  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27812 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  HSC55148  Arctostaphylos nevadensis G. L. Clifton, Griswold 1979-8-1 12071 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55172  Arctostaphylos patula Gilbert Muth 1979-8-1 12173 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC74654  Arctostaphylos patula M. A. Baker 1980-5-17 1269 Humboldt Near Le Perron Peak 1066 Comment
  HSC7704  Arctostaphylos patula J. Pursell 1964-10-17 10171 Humboldt Hoopa in Hoopa Valley Comment
  CAS-BOT-BC43994  Arctostaphylos uva-ursi Philip A. Munz 1954-7-25 19876 Humboldt in Coastal Strand Community, at Humboldt Lighthouse south of Samoa Comment
  SD41456  Arctostaphylos uva-ursi Edith A. Purer 1932-7-27 4136 Humboldt Samoa, near Arcata Comment
  UC1225930  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  UC1225933  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  UC1225935  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  UC21913  Arctostaphylos uva-ursi Harley P. Chandler May 1901 1133 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  RSA286310  Arctostaphylos uva-ursi var. coactilis R. F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes. Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  UC1173712  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  UCD20371  Arctotheca calendula John T. Kennedy 2002-5-9 s.n. Humboldt Centerville Rd., 2.5 miles from ocean. Comment
  UCR64184  Arctotheca calendula T. C. Fuller, G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries daily, 3.4 mi west of Main Street, on Centerville beach rd. Ferndale Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC668126  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 c Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC8972  Aristida oligantha DWC 1956-8-2 Humboldt Garberville - Laughlin soil Comment
  HSC16904  Armeria maritima subsp. californica R. J. Vernimen 1963-4-27 41 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC40932  Armeria maritima subsp. californica Linda M. Barker 1976-6-1 1553 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCSB15631  Armeria maritima subsp. californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  HSC100712  Arnica amplexicaulis Carl C. Marshall Jun 1886 273 Humboldt Trail E of Hoopa. Comment
  CAS-BOT-BC82101  Arnica cernua Joseph P. Tracy 1926-5-2 s.n. Humboldt Willow Creek Canyon Comment
  HSC45266  Arnica cernua M. Alcasas 1978-6-3 113 Humboldt Horse Mtn. summit 1513 Comment
  HSC47944  Arnica cernua Brad Klipfel 1974-5-27 436 Humboldt Horse Mtn. Comment
  HSC76342  Arnica cernua Teresa Prendusi 1981-7-9 207 Humboldt Near Cedar Camp 1268 Comment
  HSC74699  Arnica discoidea Gail Newton 1981-7-23 2287 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC33626  Arnica discoidea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2730 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  HSC58598  Arnica latifolia G. L. Clifton, Griswold 1979-7-25 10755 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC41002  Artemisia douglasiana J. O. Sawyer 1975-10-17 2713 Humboldt S slopes of N Trinity Mtn. Comment
  HSC67041  Artemisia douglasiana J. P. Smith 1971-10-9 5032 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  CAS-BOT-BC93858  Artemisia dracunculus Hubert Jenkins 1943-8-1 s.n. Humboldt Near edge of Eel River in sand. Richardson Grove Comment
  CAS-BOT-BC93860  Artemisia dracunculus A. A. Heller 1924-7-20 I 3865 Humboldt In sand along the Eel River at Phillipsville Comment
  JEPS36984  Artemisia dracunculus W. L. Jepson 1936-8-12 17877 Humboldt second terrace of the river South Fork Eel River, Philipsville Comment
  CAS-BOT-BC90881  Artemisia pycnocephala Carl B. Wolf 1940-11-10 9782 Humboldt Coast South of Mendocino - 1 8/10 mi. N. of where road turns inland to Petrolia 7 Comment
  SEINET198593  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  UC164826  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  UCD129341  Artemisia pycnocephala Linda M. Barker 1976-7-5 1633 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  CAS-BOT-BC97243  Artemisia suksdorfii Carl B. Wolf 1927-8-29 1220 Humboldt [Devil's] Devils Gate, south of Cape Mendocino Comment
  HSC34272  Aruncus dioicus var. acuminatus K. Irwin 1975-8-13 Humboldt Grogans Hole Comment
  HSC55869  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-25 10893 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC6169  Asarum caudatum Harley P. Chandler May 1901 1267 Humboldt Redwood Belt 457 Comment
  UCR179286  Asarum caudatum R. G. Swinney 1968-3-28 232 Humboldt East of Humboldt State College, Arcata 152 Comment
  CAS-BOT-BC400535  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  RSA114387  Asarum caudatum G. R. Campbell 1955-9-20 21468 Humboldt 4 mi. NE of Strongs Station (Van Duzen River) on Yager road Comment
  UC494106  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  HSC65862  Asarum hartwegii Gail Newton 1980-7-22 1698 Humboldt Near Devils Backbone 1545 Comment
  HSC56462  Asclepias cordifolia Griswold, Butler 1979-7-12 7257 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA47105  Asclepias speciosa Doris K. Kildale 1925-7-5 s.n. Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC478833  Asparagus officinalis Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson's Creek, Orleans region Comment
  HSC67193  Aspidotis densa Thomas W. Nelson 1980-6-10 5418 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  UC419051  Aspidotis densa J. P. Tracy and H. E. Parks 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  HSC1051  Aspidotis densa D. E. Anderson 1961-9-3 1777 Humboldt Comment
  CDA17341  Aster occidentalis P. Haggard 2004-8-15 PDR 1285931 Humboldt North Coast Ranges; Six Rivers National Forest, Friday Ridge Rd. 0 Comment
  RSA43677  Aster radulinus H. M. Pollard 1947-8-9 s.n. Humboldt South River Road, south of Orleans Comment
  CAS-BOT-BC193137  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  RSA475203  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-30 747 -1 Humboldt Van Duzen River; road across river E of Cheatman Grove [Cheatham Grove]. 100 Comment
Read comments Jan 28 2016
  UC201698  Astragalus rattanii var. rattanii unknown 1884-6-1 Humboldt Black Butte Comment
  CAS-BOT-BC200853  Astragalus umbraticus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UCD105332  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  HSC97997  Asyneuma prenanthoides Cara Witte 2007-7-9 454 Humboldt Grouse Mountain. Forest Service Road 5N04. 1/4 mile east of spring. 1554 Comment
  UCD66901  Asyneuma prenanthoides John M. Tucker 1948-9-3 1859 Humboldt Friday Ridge Road, just below Black Rock (junction of Friday Ridge Road and the Horse Mountain - Grouse Mountain Road). Comment
  POM319593  Athyrium filix-femina subsp. cyclosorum Patricia Wilder 1968-8-21 4383 Humboldt Bog in Big Lagoon park, just west of Highway 101 2 Comment
  SD90176  Athyrium filix-femina var. cyclosorum Benjamin C. Stone 1952-6-25 128 Humboldt 15 miles south of Klamath on Highway 101 14 Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  HSC98974  Athyrium filix-femina var. cyclosorum Cara Witte 2007-8-9 626 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC77503  Athysanus pusillus L. P. Janeway 1983-5-21 300 Humboldt Above Titlow Hill Rd., 3.3 mi S of Hwy. 299 1250 Comment
  UC1198294  Athysanus pusillus Joseph P. Tracy 1908-6 2939 Humboldt nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  UC187270  Avena barbata Joseph P. Tracy 1906-4-29 2426 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  HSC9007  Avena fatua Frances Oldridge 1945-1 Humboldt Fortuna Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  CHSC26753  Baccharis douglasii M. S. Taylor 1977-7-5 1428 Humboldt Around bridge over Eel River at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  UC1119655  Baccharis glutinosa H. L. Person 1932-7-18 Humboldt Eureka Comment
  CAS-BOT-BC98028  Baccharis pilularis Elmer I. Applegate 1923-9-12 3990 Humboldt Stone Lagoon Comment
  RSA254757  Baccharis pilularis Thomas W. Nelson 1971-11-11 601 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  HSC67009  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-9 4992 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC68159  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-6 4963 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET7003036  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  HSC57311  Barbarea verna Terry Griswold, Marvin Butler 1979-7-10 6301 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC64813  Barbarea verna J. P. Smith, Steve Selva 1970-6-30 4125 Humboldt Comment
  HSC102640  Barbarea vulgaris M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1624 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CHSC68559  Bellardia trixago Vernon H. Oswald 1997-4-29 8361 Humboldt Somoa Dunes Recreation Area at the south end of the North Spit separating Hunbolt Bay from the ocean. Near seal level. Coastal Dunes. Comment
  CAS-BOT-BC106351  Bellis perennis Mrs. H. C. Cantelow 1935-5-30 803 Humboldt 8 mi. n. of Orick Comment
  HSC12595  Bellis perennis C. Kline 1970-11-9 61 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  HSC5192  Bellis perennis D. E. Anderson 1961-8-11 1729 Humboldt East of Humboldt State College campus Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  HSC57111  Berberis aquifolium var. aquifolium Overton, Butler 1979-7-25 9852 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC73146  Berberis aquifolium var. aquifolium M. A. Baker 1980-5-18 1354 Humboldt Near Black Mtn. 792 Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  RSA167296  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 122 Comment
  CHSC26466  Blechnum spicant J. Detzer 1977-4-8 3 Humboldt S end of Patricks Point State Park, ca. 0.2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  POM87950  Blechnum spicant L. R. Abrams, R. Bacigalupi 8299 Humboldt Near northern county line Comment
  SEINET11711335  Blechnum spicant K. S. Erdman 1970-1 4820 Humboldt Summit of Gold Bluffs on park road ca 2 mi W of US 101 at Berry Glen, Redwood National Park Comment
  SFV12198  Blennosperma nanum R. Gankin, W. R. Hildreth 1966-3-15 700 Humboldt Serpentine slopes of Klamath River Canyon. State Highway 96, 4.6 miles north of Hoopa. Comment
  RSA182047  Boisduvalia stricta Joseph P. Tracy 1918-7-6 5050 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC54891  Botrychium multifidum G. L. Clifton, Griswold 1979-7-25 10930 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA20790  Boykinia major Carl B. Wolf 1937-8-13 9255 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 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
  POM248380  Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 877 Humboldt Bars on Van Duzen River, below Blue Slide Comment
  UC526898  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point North Coast Ranges 152 Comment
  SEINET9806296 Image available Briza maxima Unknown 2007-6-19 Humboldt Arcata, CA Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  HSC79436  Briza minor Kenneth Clark 1980-6-14 664 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 30 Comment
  SEINET4182983 Image available Briza minor Franklin Fitz Humboldt Backyard weed patch in Arcata Comment
  UC1541547  Briza minor Harold E. Parks May, 1933 4302 Humboldt Spruce Cove Trinidad Comment
  UCR84723  Briza minor Kathy Harper 1992-5-14 s.n. Humboldt North Coast Range, State Hwy 36 just north of the south fork of the Van Duzen River 762 Comment
  HSC56466  Brodiaea elegans subsp. elegans Griswold, Butler 1979-7-12 7273 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC35610  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2022 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  JEPS7726  Brodiaea elegans subsp. elegans W. L. Jepson 1902-6 1960 Humboldt Hupa Road Redwood Creek (Redwood Creek) Comment
  JEPS7733  Brodiaea elegans subsp. elegans Joseph P. Tracy 1926-6-27 7695 Humboldt Horse Mountain Pass on Trinity Highway; Northern Coast Ranges, Horse Mountain, Horse Mountain Pass 883 Comment
  UC1197746  Brodiaea elegans subsp. elegans J. P. Tracy 1906-7-4 2529 Humboldt near Hydesville (gravel bars on creek); Yager Creek 91 Comment
  SEINET10833761  Brodiaea ida-maia Lyman D. Benson 1930-7-18 Benson 2188 Humboldt West of Willow Creek. Mt. Range, Seaward N coast. River West of Trinity 1500 feet. Slope south Barren hillsides, abundant. Comment
  SEINET202663  Brodiaea stellaris Milo S. Baker 1923-7-26 127 b Humboldt Above camp on south fork of Yager Creek. Comment
  CAS-BOT-BC486504  Brodiaea stellaris Doris K. Kildale 1925-6-14 681 Humboldt Head of South Yager. bald hills 914 Comment
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  JEPS514  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi. w. Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  UC1103274  Bromus carinatus var. carinatus J. P. Tracy 1900-7-4 883 Humboldt opposite Eureka (Ocean Beach at Somoa); Samoa, Ocean Beach Comment
  UC1103281  Bromus carinatus var. carinatus Joseph P. Tracy 1941-6-15 16910 Humboldt Wilder Ridge 609 Comment
  CAS-BOT-BC149160  Bromus carinatus var. marginatus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  HSC45110  Bromus diandrus R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC9284  Bromus diandrus R. V. Papike 1962-5-25 33 Humboldt Arcata 91 Comment
  UC1103358  Bromus diandrus Joseph P. Tracy 1919-5-31 5158 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  HSC79390  Bromus hordeaceus Kenneth Clark 1980-5-10 653 Humboldt Above mean high tide, E beach of Point Delgada. 5 Comment
  HSC9173  Bromus hordeaceus C. S. Chavez 1965-3-28 14 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  UCD58705  Bromus hordeaceus Linda M. Barker 1976-5-13 1477 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA152294  Bromus orcuttianus Joseph P. Tracy 1936-5-8 15124 Humboldt Trinity Summit; on Ridge 2 miles east of Grove's Prairie 1463 Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC9375  Bromus vulgaris D. E. Anderson 1965-9-5 4080 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA43838A  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt Klamath River near Harley Place, Orleans region Comment
  UCR51752  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt North Coast Range, Klamath River near Harley Place, Orleans region Comment
Read comments Apr 27 2007
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  HSC39791  Cakile maritima Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay 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
  UCR121764  Cakile maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 7025 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC79357  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove, 5' above mean high tide, E facing coastal bluff Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  CAS-BOT-BC185239  Calamagrostis koelerioides Joseph P. Tracy 1935-7-24 14192 Humboldt Trinity Summit. Near Ranger Station. 1828 Comment
  CAS-BOT-BC185240  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14355 Humboldt Salmon Summit. 1767 Comment
  HSC74184  Calamagrostis koelerioides M. A. Baker 1980-7-23 3140 Humboldt Near Orleans Mtn. 1859 Comment
  UCD57329  Calamagrostis koelerioides Joseph P. Tracy 1936-7-26 15050 Humboldt Willow Creek Canyon, along Trinity Highway. 457 Comment
  CAS-BOT-BC185185  Calamagrostis nutkaensis Catherine Best 1990-6-26 1398 Humboldt Growing near Nature Conservancy property on the road to the Table Bluff Light House northwest of Loleta. Comment
  HSC17630  Calandrinia ciliata C. A. Bontrager 1966-4-24 45 Humboldt 1834 Allard Ave., Eureka Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC12858  Callitropsis nootkatensis M. Athey, D. La Conte 1970-11-28 4 Humboldt HSU campus Comment
  HSC1284  Calocedrus decurrens P. J. Zinke 1950-8-2 148 Humboldt Elk Ridge 7 mi. W of Miranda 640 Comment
  UC667123  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Bosworth's Larrabee Creek 457 Comment
  HSC74317  Calochortus elegans var. nanus M. A. Baker 1980-7-22 3061 Humboldt Near Salmon Mtn. 1820 Comment
  HSC73144  Calochortus tolmiei M. A. Baker 1980-5-18 1330 Humboldt Near Black Mtn. 792 Comment
  POM264814  Calochortus tolmiei Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC1103463  Calochortus tolmiei Joseph P. Tracy 1935-7-14 14074 Humboldt near Clear Lake; Grouse Mountain 1524 Comment
  UC1197683  Calochortus tolmiei Harold E. Parks and Joseph P. Tracy 1934-6-27 11071 Humboldt Grouse Mt. 1432 Comment
  UC14999  Calochortus tolmiei Mrs. M. H. Manning Apr 1901 10 Humboldt near Hupa Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  RSA167194  Calycadenia ciliosa Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  HSC100365  Calycadenia truncata J. McRae 2007-9-13 Humboldt Sims Mtn., Panther dozer line. 732 Comment
  UC1222959  Calycadenia truncata Joseph P. Tracy 1941-9-1 17009 Humboldt near Don Juan Point (along Trinity River); Trinity River 335 Comment
  RSA33968  Calycadenia truncata subsp. scabrella Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat. Comment
  RSA47142  Calycadenia truncata subsp. scabrella Doris K. Kildale 1925-9-4 982 Humboldt Redwood Creek Comment
  HSC17646  Calyptridium monospermum W. K. Parks Jul 1933 1198 Humboldt S Fork Mtn. Comment
  HSC54669  Calyptridium monospermum Overton, Butler 1979-7-25 9906 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC55018  Calyptridium monospermum Overton, Butler 1979-7-31 11424 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC97630  Calyptridium monospermum Cara Witte 2007-6-5 214 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC71173  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1977-5-30 3417 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  SBBG5774  Calystegia occidentalis subsp. occidentalis H. and M. Dearing 1939-5-24 Humboldt Pass Rd, Dyerville to Mattole Comment
  JEPS98261  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-11 1579 Humboldt W shoulder of south G street, about 75 m S of the City of Arcata Corporation Yard entrance Arcata Comment
  CHSC23189  Calystegia soldanella Robert F. Thorne; P. Everett 1965-8-7 35217 a Humboldt Samoa Peninsula. 3 Comment
  LA103753  Calystegia soldanella Robert F. Thorne; P. C. Everett 1965-8-9 35307 Humboldt Big Lagoon 3 Comment
  UCSB4975  Calystegia soldanella Phillips, Priscilla 1958-6-7 Humboldt Dry Lagoon Park beach, near Trinidad Comment
  HSC16539  Camissonia cheiranthifolia Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  UCR143291  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  NY679576  Camissonia cheiranthifolia subsp. cheiranthifolia L. Abrams 1916-7-18 6120 Humboldt Arcaba to Trinidad. Comment
  POM271978  Camissonia cheiranthifolia subsp. cheiranthifolia Lyman Benson 1928-7-10 440 Humboldt Clam Beach, Trinidad. 11 Comment
  RSA246929  Camissonia cheiranthifolia subsp. cheiranthifolia Robert F. Thorne, Percy C. Everett 1965-8-5 35150 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC160241  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. P. Tracy 1909-7-18 3017 Humboldt Sand hills of Ocean Beach at Samoa, opp. Eureka Comment
  SEINET10462972  Campanula prenanthoides Overton 1979-8-2 OVERTON 12621 Humboldt Near Grogan Hole, on the Salmon Mountain quad., close to the town of Hoopa 1554 Comment
  UC602534  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  SEINET10462985  Campanula prenanthoides Wolf 1937-8-13 WOLF 9215 Humboldt North Coast Range; 8 miles east of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  SEINET10873276  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt WOOLEY CREEK Comment
  SEINET10905929  Campanula prenanthoides Perry 1930-7-11 Perry s.n. Humboldt HUMBOLDT STATE PARK Comment
  SEINET10972405  Campanula prenanthoides Willis L. Jepson 1932-7-24 Jepson 16383 Humboldt FRUITLAND Comment
  RSA12439  Campanula scouleri C. B. Wolf 1934-7-2 5854 Humboldt 2 miles from Bald Mt. on road to Korbel. 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
  HSC12555  Capsella bursa-pastoris D. La Conte 1970-10-11 16 Humboldt Cultivated area Comment
  HSC6630  Capsella bursa-pastoris J. L. Baker 1965-3-26 17 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  CAS-BOT-BC37222  Cardamine angulata Joseph P. Tracy 1928-4-29 s.n. Humboldt Northern Coast Range. Prairie Creek. 152 Comment
  CAS-BOT-BC37431  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River near Bridgeville. Comment
  HSC79520  Cardamine californica Kenneth Clark 1980-3-1 518 Humboldt Middle and upper terraces of Dead Man's Gulch 61 Comment
  UC1199182  Cardamine californica Joseph P. Tracy 1935-3-10 13732 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UC1536942  Cardamine californica Gordon H. True Jr. 1936-2-26 328 Humboldt e Pepperwood (along Eel River); , e of Pepperwood 91 Comment
  UC1199198  Cardamine nuttallii Joseph P. Tracy 1935-7-28 14320 Humboldt head Devil's Hole; Trinity Summit, head of Devil's Hole 1828 Comment
  UC1409184  Cardionema ramosissimum Robert F. Thorne and P. Everett 1965-8-5 35155 Humboldt Samoa Dunes 3 Comment
  SEINET11861099  Carduus pycnocephalus J. P. Tracy 1947-6-8 17703 Humboldt 0.5 mi W of town, vicinity of Carlotta 30 Comment
  CAS-BOT-BC281809  Carduus tenuiflorus Doris K Niles 1951-1-1 s.n. Humboldt Niles Ranch Comment
  CAS-BOT-BC18269  Carex Doris Kildale 1931-5-10 10573 Humboldt Snow Camp. Comment
  POM296860  Carex Lyman Benson 1929-7-16 1843 Humboldt Weott Ranger Station. Comment
  CAS-BOT-BC17792  Carex amplifolia Doris Kildale 1931-6-6 10865 Humboldt Gans Prairie, Orick - Weitchpec road. Comment
  CAS-BOT-BC17793  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  HSC76378  Carex aquatilis var. dives L. P. Janeway 1982-8-7 117 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  UC249738  Carex aquatilis var. dives Joseph P. Tracy 1923-6-24 8352 Humboldt Bald Mountain, meadow near High Prairie Northern Coast Ranges 1066 Comment
  CAS-BOT-BC18075  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  POM247170  Carex athrostachya Joseph P. Tracy 1934-7-18 13426 Humboldt Grouse Mountain. 1524 Comment
  RSA364615  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt At Woodson Mine, near Orleans. Comment
  CAS-BOT-BC19440  Carex bolanderi Alice Eastwood; John Thomas Howell 1937-6-23 4779 Humboldt Near Dinsmores. Comment
  UC1265367  Carex bolanderi Robert F. Thorne and P. Everett 1965-8-5 35136 Humboldt Mt. Chamisal, below summit Comment
  HSC45389  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4408 Humboldt Along margin of Lost Lake 1433 Comment
  HSC98948  Carex bolanderi Cara Witte 2008-7-25 934 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  CHSC90273  Carex brainerdii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8588 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC7100  Carex buxbaumii B. D. Rogers 1965-10-2 1018 Humboldt Big Lagoon 0 Comment
  UC1103602  Carex concinnoides Joseph P. Tracy 1927-6-12 8145 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  CAS-BOT-BC34436  Carex deflexa var. boottii Joseph Prince Tracy 1939-5-14 16292 Humboldt Dinsmores. Along Van Duzen River. 731 Comment
  UC1103106  Carex deweyana subsp. leptopoda Joseph P. Tracy 1904-7-17 2123 Humboldt Hydesville 60 Comment
  JEPS109270  Carex diandra D. W. Taylor 2004-6-23 19127 Humboldt Pond on the divide between Frost Creek and Martin Creek, about 1 air mile e of the Alderpoint road. Comment
  UC303007  Carex echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC74421  Carex echinata subsp. echinata Gail Newton 1980-8-10 2044 Humboldt Near Blake Mtn. 1707 Comment
  UC1152053  Carex echinata subsp. echinata Joseph P. Tracy 1950-7-25 19067 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC76841  Carex exsiccata L. P. Janeway 1982-8-7 115 Humboldt Dry Lagoon 3 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  CAS-BOT-BC22311  Carex harfordii Joseph Prince Tracy 1938-6-15 15933 Humboldt Vicinity of Carlotta. 30 Comment
  HSC103083  Carex hassei Sydney Carothers 2014-6-22 25 Humboldt Six Rivers National Forest, Lassics Botanical Area. Below trail to Mount Lassic. 1707 Comment
  HSC103322  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8605 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC31664  Carex lyngbyei Joseph Prince Tracy 1938-7-15 16069 Humboldt In salt marsh and edges of sloughs, Mouth of Eel River. 3 Comment
  UC562321  Carex lyngbyei Joseph P. Tracy 1935-6-8 13945 Humboldt around Humboldt Bay; Northern Coast Region 6 Comment
  HSC85707  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  UC302096  Carex microptera Joseph P. Tracy 1906-5-20 2461 Humboldt Eureka Northern Coast Region 0 Comment
  HSC43481  Carex microptera Thomas W. Nelson, Jane P. Nelson 1977-9-3 3739 Humboldt Head of Bear Creek 1585 Comment
  UC1103086  Carex multicostata Joseph P. Tracy 1930-7-23 9127 Humboldt Cold Springs Northern Coast Ranges, Horse Mountain 1432 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
  HSC7065  Carex obnupta D. B. Bader 1963-3-29 35 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC7069  Carex obnupta S. J. Hawks, D. E. Anderson 1965-5-18 14 Humboldt 1/4 mi. W of Fairhaven Comment
  HSC7071  Carex obnupta J. W. Johnson 1961-9-3 1081 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  HSC76804  Carex obnupta L. P. Janeway 1982-8-7 113 Humboldt Dry Lagoon 3 Comment
  HSC86478  Carex obnupta Rudolf W. Becking 1988-4-9 Humboldt South Spit, opposite Fields Landing Comment
  CDA33125  Carex obnupta T. C. Fuller 1961-9-28 7055 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC38424  Carex obnupta Lon Hall 1975-6-20 407 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  JEPS79831  Carex obnupta Joseph P. Tracy 1934-7-13 13381 Humboldt North Coast Ranges, Arcata Bottom Arcata Bottom; North Coast Ranges, Arcata Bottom 15 Comment
  SEINET3905270  Carex obnupta D. A. Haskell 1966-4-16 2 Humboldt Coastal strand sand dunes near town of Samoa.; 0 Comment
  UC1026440  Carex obnupta Frank W. Peirson 1941-7-28 13108 Humboldt Patrick Pt. State Park Comment
  CAS-BOT-BC119269  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4830 Humboldt Near Yager Comment
  UC302099  Carex pachystachya Joseph P. Tracy 1911-7-7 3390 Humboldt three mi nw junction of Willow Creek with Trinity River (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges; NW of junction of Willow Creek w/ Trinity River, Humboldt Co., near Beebe's Ranch. 914 Comment
  UC562637  Carex pachystachya Joseph P. Tracy 1936-7-5 15043 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC562644  Carex pachystachya Joseph P. Tracy Jul 16 1930-Jul 19 1930 8984 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC119168  Carex pansa Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka. Comment
  UC2015859  Carex pellita Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4346 Humboldt Coast Range, Burr Valley area. 'False Burr Valley', beside Burr Creek. Comment
  HSC103625  Carex rossii Thomas W. Nelson, Jane Nelson 1987-6-11 8536 Humboldt Along Forest Service Rd. 13N01, 18 mi. from junction with State Route 96. 1067 Comment
  HSC78036  Carex rostrata Gail Newton 1980-8-10 2050 Humboldt Near Blake Mtn. 1707 Comment
  SDSU11677  Carex stipata W. A. Bemis 1964-5-4 273 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N R1E HBM 98 Comment
  CAS-BOT-BC116941  Carex subbracteata Harley Pierce Chandler 1901-5-1 1115 Humboldt Humboldt Bay 30 Comment
  JEPS122434  Carex subbracteata Peter F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain. Outer North Coast Ranges (NCoRO) Comment
  NY11384  Carex tracyi J. P. Tracy 1914-7-4 4547 Humboldt "High Prairie" on Bald Mountain 1066.8 Comment
  CAS-BOT-BC115568  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4736 Humboldt Near Alder Point Comment
  POM126148  Carex tumulicola Joseph P. Tracy 1923-5-13 6205 Humboldt Near Bridgeville. Comment
  UC1116270  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt near Bridgeville 457 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  UC1152050  Carex utriculata Joseph P. Tracy 1950-8-7 19264 Humboldt Box Camp Trinity Summit 1463 Comment
  UC197252  Carex utriculata Joseph P. Tracy 1914-7-4 4534 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562325  Carex vesicaria var. major Joseph P. Tracy 1934-7-30 13502 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  HSC7087  Carex viridula H. E. Parks Sep 1934 5214 Humboldt Dry Lagoon Comment
  UC249753  Carex viridula var. viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC49819  Carpobrotus chilensis R. York 1979-4-13 241 Humboldt Bluffs surrounding College Cove. Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  BLMAR667  Castilleja affinis subsp. litoralis Jennifer Wheeler 2012-7-12 667 Humboldt King range, Strawberry rock 253 Comment
  JEPS25802  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-31 1222 Humboldt Trinidad Head, near lighthouse Trinidad Head Comment
  JEPS3694  Castilleja affinis subsp. litoralis L. R. Heckard and P. C. Silva 1952-5-10 271 Humboldt just s Humboldt Bay; Table Bluff Comment
  SD131908  Castilleja affinis subsp. litoralis Rimo Bacigalupi, G. T. Robbins, C. L. Custer 1954-8-11 4758 Humboldt Road embankment, 1.2 miles south of Trinidad Comment
  UCSB26617  Castilleja ambigua Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka Comment
  JEPS93175  Castilleja ambigua subsp. humboldtiensis Margriet Wetherwax and Kevin Downing 1993-8-9 2455 Humboldt just n Eureka (s side of Eureka Slough, e side of Humboldt Bay, near Bayside Rd and Myrtle, just past Pigeon Point, e side of road); Humboldt Bay 5 Comment
  HSC98627  Castilleja applegatei subsp. pinetorum Cara Witte 2008-7-11 875 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  HSC32373  Castilleja exserta subsp. latifolia Linda M. Barker 1974-6-2 200 Humboldt Manila Dunes, Samoa Peninsula, W of Emerson Mill 0 Comment
  JEPS10343  Castilleja exserta subsp. latifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16659 Humboldt Table Bluff, w foot of bluff Table Bluff 6 Comment
  HSC38886  Castilleja miniata J. O. Sawyer 1970-6-25 2300 Humboldt 1646 Comment
  UC179928  Castilleja miniata Joseph P. Tracy 1914-7-4 4537 Humboldt High Prairie Northern Coast Ranges, Bald Mountain (on Bald Mountain) 1066 Comment
  HSC20583  Castilleja pruinosa D. E. Anderson 1965-6-1 3764 Humboldt Horse Mountain, W facing slope 1220 Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC39058  Castilleja rubicundula subsp. lithospermoides Thomas W. Nelson, Jane P. Nelson 1976-5-31 2644 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  SBBG68608  Castilleja rubicundula subsp. lithospermoides H. E. Parks, J. P. Tracy 1930-5-25 796 Humboldt vicinity of Bridgeville, Laribee Valley (Larabee Valley) Comment
  UC535100  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt vicinity Bridgeville; Laribee Valley Comment
  UC1502104  Ceanothus R. Sutherland 1975-7-4 7 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  HSC98788  Ceanothus cuneatus Cara Witte 2008-6-4 675 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  RSA600899  Ceanothus foliosus var. foliosus Louis C. Wheeler 1959-8-1 7619 Humboldt Queens Peak Mine. Comment
  CAS-BOT-BC50043  Ceanothus incanus M. S. Jussel 1931-5-2 114 Humboldt Garberville Comment
  UC634809  Ceanothus incanus H. L. Mason 1928-7-14 4901 Humboldt East Fork of Eel River Garberville Comment
  RSA95401  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Vicinity of Garberville Comment
  UC203857  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-7-3 4986 Humboldt Wilder Ridge Northern Coast Ranges 457 Comment
  HSC23293  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1294 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43226  Ceanothus pumilus R. Sutherland 1976-4-17 6 .17476 Humboldt 549 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  CAS-BOT-BC52218  Ceanothus thyrsiflorus Doris K. Kildale 1926-8-29 2598 Humboldt Blue Slide on the Van Duzen River Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  UC170229  Ceanothus thyrsiflorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5623 Humboldt near Korbel (Bald Mt.); North Coast Ranges, Bald Mt. Comment
  UCD112721  Ceanothus thyrsiflorus R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  CAS-BOT-BC52868  Ceanothus velutinus Carl Purdy 1917-4-16 s.n. Humboldt Ukiah Comment
  HSC98200  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 mi N of Hoopa along Hwy. 96 Comment
  UC275283  Ceanothus velutinus Joseph P. Tracy 1923-10-28 6590 Humboldt Bald Mountain 762 Comment
  UC668158  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC702533  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 mi n and 2 mi e Boynton Prairie; n and e of Boynton Prairie 630 Comment
  RSA46890  Ceanothus velutinus var. laevigatus Doris K. Kildale 1926-4-25 1812 Humboldt Hoopa Mt. Comment
  HSC74217  Ceanothus velutinus var. velutinus M. A. Baker 1980-7-23 3177 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC277174  Centaurea X moncktonii Earle Mills 1933-10-27 s.n. Humboldt Eureka Comment
  UC582524  Centaurea benedicta Joseph P. Tracy 1928-10-7 8515 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  CDA7085  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  CDA15840  Centaurea diffusa P. Haggard 1999-10-18 PDR 1170400 Humboldt North Coast; near Blue Lake. 0 Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  UC582526  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of South Fork (along Eel River); Eel River 45 Comment
  CDA7334  Centaurea solstitialis T. C. Fuller 1961-3-21 5856 Humboldt Freeway island, 1 mile northeast of the limits of Eureka. 0 Comment
  RSA69802  Centaurium muehlenbergii F. W. Peirson 1941-7-29 13110 Humboldt Stephens Grove State Park. Comment
  UC511367  Centaurium muehlenbergii Lyman Benson 1929-7-19 1899 Humboldt Weeott Ranger Station, watershed of South Fork Eel River, seaward side of n coast mountain range South Fork Eel River 60 Comment
  JEPS38151  Centromadia pungens subsp. pungens W. L. Jepson 1932-8-8 16486 a Humboldt Canoe Creek Grasshopper Peak, Canoe Creek 1066 Comment
  UC562466  Centunculus minimus Joseph P. Tracy 1924-8-3 6745 Humboldt Northern Coast Region, Stone Lagoon Stone Lagoon; Northern Coast Region, Stone Lagoon 6 Comment
  UC1223235  Cerastium arvense Joseph P. Tracy 1950-6-15 18820 Humboldt 7 mi. n. Harris (Huestis Rock, on n.e. side of Ridge); Mail Ridge, Huestis Rock Comment
  UC179959  Cerastium arvense Joseph P. Tracy 1914-7-5 4565 Humboldt Bald Mt., High Prairie Northern Coast Ranges, Bald Mt., High Prairie 1066 Comment
  UC1052447  Cerastium glomeratum H. E. and S. T. Parks 1944-4-1 24279 Humboldt Trinidad, Spruce Cove 60 Comment
  UC1198320  Cerastium glomeratum Joseph P. Tracy 1911-7-5 3308 Humboldt near mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 182 Comment
  HSC90487  Cerastium glomeratum Jean Hanson 1980-4-12 35 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  HSC73149  Cercis occidentalis M. A. Baker 1980-5-18 1344 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC276489  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain 1524 Comment
  JEPS52356  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above mouth of river; Nothern Coast Ranges, South Fork of Eel River Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1122501  Chamerion angustifolium subsp. circumvagum H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quadrangle Comment
  UC673176  Cheilanthes gracillima Lincoln Constance and Reed C. Rollins 1942-5-12 2881 Humboldt 6 mi ne Weitchpec (mouth of Bluff Creek); Klamath-Siskiyou Region 152 Comment
  CAS-BOT-BC70164  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mtn. nr. Orleans 1524 Comment
  HSC98979  Cheilanthes gracillima Cara Witte 2008-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  UC1299765  Cheilanthes gracillima Freed W. Hoffman 1949-7-15 3008 Humboldt e slope Mule slide (Mt Lassic Group a little s of Blue Ridge) Comment
  UC1598409  Cheilanthes gracillima J. Burtt Davy 1899-7-9 5387 Humboldt Harris to Hubbard's Station Comment
  SEINET4558631  Chenopodium atrovirens Joseph P. Tracy 1932-1 10500 Humboldt Local along trail 1585 Comment
  UC179956  Chenopodium murale Joseph P. Tracy 1914-6-26 4519 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC451381  Chimaphila menziesii L. B. Kildale 1930-8-3 10363 Humboldt Chaparel Mt. at Bug Creek 914 Comment
  HSC41338  Chimaphila umbellata Brad Klipfel 1974-9-7 562 Humboldt Horse Mtn., above E fork of Willow Creek Comment
  RSA467018  Chimaphila umbellata subsp. occidentalis A. C. Life 1924-2-23 14589 Humboldt Kings Mts.,Redwood Park. Comment
  CAS-BOT-BC237976  Chloropyron maritimum subsp. maritimum J. D. Ackerman 1975-8-2 615 Humboldt Humboldt Bay, across from Murray Field (Eureka Airport). Near railroad tracks and hwy. 101 Comment
  HSC31653  Chrysolepis chrysophylla Timothy B. Devine 1974-5-4 319 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC41353  Chrysolepis chrysophylla Brad Klipfel 1974-9-2 546 Humboldt Horse Mountain Comment
  UC162706  Chrysolepis chrysophylla Joseph P. Tracy 1911-7-8 3448 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 182 Comment
  HSC97121  Cicuta douglasii Gordon Leppig 1998-8-23 1078 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC154050  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  HSC70355  Circaea alpina subsp. pacifica M. A. Baker 1980-6-7 1864 Humboldt Near Ammon Creek 732 Comment
  UC582529  Cirsium arvense Joseph P. Tracy 1933-8-13 12962 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC284405  Cirsium arvense Doris K. Kildale 1925-7-26 1069 Humboldt Mad River at West End Crossing Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  HSC104074  Cirsium arvense T. Collins 2002-7-31 Humboldt Six Rivers National Forest; along road cut on Hwy. 36 Comment
  SEINET201069  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC279974  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  HSC97973  Cirsium occidentale var. candidissimum Cara Witte 2007-6-21 318 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1390 Comment
  UC582533  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  RSA297180  Cirsium vulgare Lincoln Constance 1934-6-11 853 Humboldt South Fork Eel River; Lower Look Prairie and Bull Creek Road to Dyerville Comment
  UCD130816  Cirsium vulgare R. E. Nelson 1956-7-3 192 a Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  UC1122363  Clarkia amoena H. S. Yates 1936-6-23 5875 Humboldt 4 mi nne Cathays Peak; Dyerville Quadrangle Comment
  HSC16277  Clarkia concinna subsp. concinna J. E. Lankila 1962-5-6 13 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  JEPS25696  Clarkia concinna subsp. concinna P. C. Hutchison 1961-5-22 2028 Humboldt ca. 4 mi n Orleans (hiway 299, e side of river); Klamath River Comment
  RSA167246  Clarkia concinna subsp. concinna Joseph P. Tracy 1950-6-15 18813 Humboldt Mail Ridge, North of Harris, at Huestis Rock on northeast side of ridge 823 Comment
  UC594154  Clarkia concinna subsp. concinna S. K. Harris, J. P. Tracy 1936-6-10 3265 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  UC169917  Clarkia purpurea subsp. quadrivulnera Harley P. Chandler June 1901 1471 A Humboldt Klamath River North Coast Ranges 304 Comment
  JEPS43827  Clarkia purpurea subsp. quadrivulnera Milo S. Baker 1923-7-20 67 b Humboldt Redwood House North Coast Comment
  POM247175  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork Trinity River; mountain slopes west of its mouth 457 Comment
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  HSC39958  Claytonia rubra subsp. depressa Linda M. Barker 1976-4-13 1378 Humboldt 3 mi. W of Arcata Comment
  HSC36878  Claytonia rubra subsp. rubra J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8614 Humboldt Bald Hills Rd., 17 mi. E of its jct. with Hwy. 101 854 Comment
  CAS-BOT-BC443893  Claytonia sibirica Carl B. Wolf 1927-8-22 799 Humboldt Big Lagoon Comment
  CAS-BOT-BC443896  Claytonia sibirica Carl B. Wolf 1927-8-28 1171 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CHSC32852  Claytonia sibirica Lora L. Anderson 1981-4-26 13 Humboldt Small population ca. 0.5 mi e of ocean (Moon-Stone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC53824  Claytonia sibirica Griswold, Butler 1979-7-10 6270 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC71792  Claytonia sibirica Gail Newton 1980-6-16 176 Humboldt Near Monks Camp. 1097 Comment
  UC1136740  Claytonia sibirica H. L. Person 1932-8-8 Humboldt Freshwater; Eureka Quad. Comment
  UC162972  Claytonia sibirica Joseph P. Tracy 1908-6 2860 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC162974  Claytonia sibirica Joseph P. Tracy 1907-5-1 2557 Humboldt Eureka; Northern Coast Region 0 Comment
  UC672992  Claytonia sibirica Joseph P. Tracy 1936-8-24 15174 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC443904  Claytonia sibirica D. E. Breedlove 1961-7-4 663 Humboldt On north bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  SEINET11942406  Claytonia sibirica H. P. Chandler 1901-1 1264 Humboldt North Coast Ranges, Redwood Belt 152 Comment
  UC1223244  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Hydesville; back of Everett Beck's house Comment
  HSC24331  Claytonia washingtoniana C. E. Fellows 1971-6-7 453 Humboldt 0.2 mi. E of RR track on West End Rd., above the Mad River Comment
  CAS-BOT-BC92596  Clematis ligusticifolia Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek. Comment
  UCD40028  Clinopodium douglasii Rodney Gale Myatt 1971-9-17 1107 Humboldt near Phillipsville, above river, about 8 miles north of Gaberville, along Hwy 101. Comment
  JEPS61601  Clintonia andrewsiana W. L. Jepson 1921-9-11 9462 Humboldt n of Garberville Comment
  SEINET3991733  Clintonia andrewsiana Unknown 1914-5-17 Humboldt Freshwater Creek 305 Comment
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  HSC99448  Clintonia uniflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 98 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC70391  Collinsia grandiflora Gail Newton 1980-6-7 120 Humboldt Near Brush Mtn. 1128 Comment
  UC885542  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Larrabee Valley 762 Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  UC366914  Collinsia linearis V. Rattan Jun 1879 Humboldt Hoopa Valley Comment
  UC54920  Collinsia linearis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC902215  Collinsia linearis Joseph P. Tracy 1947-7-5 17790 Humboldt ridge w of Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC1222822  Collinsia linearis Joseph P. Tracy 1951-6-16 19475 Humboldt Summit of Siskiyous at crossing of the Takilma-Happy Camp Road near State Line Summit of Siskiyous Comment
  UC1196759  Collinsia parviflora Joseph P. Tracy 1933-7-26 12909 Humboldt North Coast Ranges, at summit of Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1630 Comment
  HSC81603  Collinsia rattanii Thomas W. Nelson, Jane P. Nelson 1980-5-25 5265 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  RSA0117231  Collinsia rattanii Volney Rattan 1903-1 1878 Humboldt Humboldt. Comment
  POM193011  Collinsia sparsiflora H. E. Parks 1930-5-25 792 Humboldt Laribee Valley. 793 Comment
  HSC100662  Collinsia sparsiflora Carl C. Marshall Jun 1887 427 Humboldt Spruce Grove. Comment
  HSC74308  Collomia grandiflora M. A. Baker 1980-7-23 3174 Humboldt Near Orleans Mtn. 1859 Comment
  UC615026  Collomia grandiflora Beryl O. Schreiber 1934-6-6 1143 Humboldt Gray's Resort Redwood Creek (brushy slope) Comment
  SBBG29130  Collomia heterophylla H. E. Parks -May-1933 1152 Humboldt Spruce Cove, Trinidad 76 Comment
  JEPS71046  Collomia heterophylla Lincoln Constance 1934-5-24 628 Humboldt forest bordering e side lower Look Prairie; Bull Creek Area 45 Comment
  UC717114  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie (roadside banks; Sn 2 e) 600 Comment
  HSC73732  Collomia tracyi M. A. Baker 1980-7-19 3001 Humboldt Near Bret Hole. 1814 Comment
  UC907814  Collomia tracyi Joseph P. Tracy 1939-8-5 16372 Humboldt in sand bar Van Duzen River, Dinsmore's 737 Comment
  HSC69531  Conium maculatum R. Kalal 1980-6-1 4 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  NY643138  Convolvulus arvensis H. P. Chandler 06 1901 1463 Humboldt Klamath River 365.8 Comment
  UC160953  Coptis laciniata Joseph P. Tracy Jul 27 1908-Jul 30 1908 2729 Humboldt opposite Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC39677  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1976-6-16 2745 Humboldt Along FS 2S08, between Alder Springs & Pine Mtn. 1494 Comment
  RSA246762  Corallorhiza maculata Robert F. Thorne, Percy C. Everett 1965-8-5 35135 Humboldt Mt. Chamisal: below summit. 747 Comment
  UC1225828  Corallorhiza maculata Joseph P. Tracy 1948-8-15 18150 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  HSC90639  Cordylanthus maritimus subsp. palustris Gail Newton 1983-8-21 3855 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS93170  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2460 Humboldt Vance Road turn off N of Hwy 255, Eureka to Samoa, saline marsh along Humboldt Bay, just past railroad tracks 5 Comment
  RSA43897  Cordylanthus tenuis subsp. viscidus H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  HSC100233  Cordyline australis J. P. Smith 2010-5-29 12890 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  POM356152  Corethrogyne filaginifolia var. californica E. A. Purer 1932-7-30 4675 Humboldt South of Orick Comment
  HSC70920  Cornus nuttallii R. York 1980-5-18 562 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC210454  Cornus sericea subsp. occidentalis M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  JEPS50152  Cornus sericea subsp. sericea Lincoln Constance 1934-6-11 844 Humboldt trail along e. bank S. Fork Eel R., N. Dyerville Flat Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  CAS-BOT-BC210539  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC210542  Cornus sessilis Carl B. Wolf 1941-2-28 9971 Humboldt Junction of Willow Creek & its e. fork 457 Comment
  CAS-BOT-BC210540  Cornus sessilis L. R. Abrams 1918-6-17 7207 Humboldt Between Hoopa & Briars Resort on road to Korbel Comment
  HSC28085  Coronopus didymus David Johnson 1973-11-27 Humboldt S side of Samoa Cookhouse Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  HSC58352  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12690 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  OBI36662  Corylus cornuta subsp. californica David J. Keil 1983-7-2 17312 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll Rd below Horse Mtn Summit Rd Comment
  HSC98702  Corylus cornuta var. californica Cara Witte 2007-7-27 606 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1445 Comment
  RSA1364  Corylus cornuta var. californica C. B. Wolf 1929-08 1424 Humboldt Stephens Grove, Redwood Highway. Comment
  UCR32167  Corylus cornuta var. californica David J. Keil 1983-7-2 17312 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  SEINET12034008  Corylus cornuta var. californica J. P. Tracy 1951-1 19624 Humboldt along Van Duzen at Blue Slide 91 Comment
  RSA34307  Cotula australis C. Kistner 1935-5-15 s.n. Humboldt Arcata Bottom. Comment
  CAS-BOT-BC291340  Cotula coronopifolia Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC665548  Cotula coronopifolia H. E. Parks Sep 1941 24211 Humboldt Little River State Park Comment
  CAS-BOT-BC291342  Cotula coronopifolia Elmer I. Applegate 1923-9-13 4009 Humboldt 5 miles south of Eureka Comment
  HSC59049  Cotula coronopifolia Thomas Wood 1979-4-20 116 Humboldt At Clam Beach, off Hwy. 101 ca. 7 mi. N of Arcata 3 Comment
  UCD130911  Cotula coronopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-3 1163 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  UC183601  Crassula aquatica Joseph P. Tracy 1912-6-9 3689 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC99461  Crataegus suksdorfii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 115 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-BC290340  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  UC164829  Crepis capillaris J. P. Tracy 1909-7-4 3005 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1223028  Crepis occidentalis Joseph P. Tracy 1951-6-26 19575 Humboldt Twin Lakes vicinity Comment
  RSA263019  Crocosmia aurea Bennett, Dunn, Dziekanowski 1976-8-6 477 Humboldt By Highway 101, north side of Orick 30 Comment
  BLMAR759  Cryptantha Jennifer Wheeler 2015-5-12 759 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  UC176947  Cryptantha flaccida Joseph P. Tracy 1912-7-26 3832 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SBBG16519  Cryptantha leiocarpa D. E. Breedlove 1962-6-7 3051 Humboldt 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay Comment
  HSC73579  Cryptantha torreyana Gail Newton 1980-7-14 1479 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC55165  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 12155 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC82965  Cuscuta salina A. L. Eicher 1985-8-17 Humboldt Border of Humboldt Bay .2 mi. S of mouth of Jacoby Creek 1 Comment
  UC562484  Cuscuta salina var. major Joseph P. Tracy 1933-8-22 12990 Humboldt Mouth of Eel River 3 Comment
  UC562482  Cuscuta subinclusa Joseph P. Tracy 1930-8-3 9151 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC20640  Cymbalaria muralis A. D. Sajecki 1967-7-24 15 Humboldt Behind H.S.C. Campus Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  HSC45506  Cynoglossum grande M. Alcasas 1978-4-7 5 Humboldt Freshwater Rd. cut-out 75 yds. S of junction with Barry Rd. 854 Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  UCD60127  Cynosurus cristatus Ray Evans 1956-7-19 s. n. Humboldt 4.5 miles northwest of Petrolia. Comment
  UC213007  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC1196444  Cypripedium fasciculatum unknown 1931-4-1 Humboldt Weitchpec 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
  HSC100390  Cystopteris fragilis Carl C. Marshall 454 Humboldt Road between Harris and Garberville. Comment
  HSC97462  Cystopteris fragilis Cara Witte 2007-5-23 103 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1398 Comment
  CSUSB1619  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  CHSC10111  Cytisus scoparius T. M. Mingo 1965-5-1 Humboldt Approximately 5 miles north of Trinidad in fields near the coast. Comment
  HSC34810  Cytisus scoparius David Peters 1975-4-9 2 Humboldt .2 mi. E of Old Arcata Rd. on Jacoby Cr. Rd. Comment
  SEINET8477238  Cytisus scoparius D. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of snowline fox farm (Larabee Valley 7 1/2 USGA quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  UC303181  Cytisus scoparius Joseph P. Tracy 1923-6-18 6289 Humboldt Petrolia; Northern Coast Ranges 60 Comment
  UC1541567  Dactylis glomerata Harold E. Parks May 1933 4307 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC45108  Danthonia californica R. Sutherland 1978-5-2 4 .2578 Humboldt 341 Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  SBBG44189  Darmera peltata K. K. Muller 1954-6-21 630 Humboldt Mad River Camp 2, Mad River, below Ruth Post Office Comment
  JEPS12211  Datura stramonium W. L. Jepson 1932-7-28 16436 Humboldt Dyerville 88 Comment
  HSC21479  Daucus carota H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  BLMAR173  Daucus pusillus Donald Hazlett 1994-6-7 173 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CHSC33386  Daucus pusillus J. P. Smith; T. W. Nelson 1977-6-30 9200 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC37925  Daucus pusillus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC164990  Deinandra corymbosa J. P. Tracy 1902-8-10 1768 Humboldt immediate vicinity Eureka 0 Comment
  UCD95699  Delphinium decorum K. Esau 1934-5-7 s.n. Humboldt Near Blocksburg 609 Comment
  UC502927  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt moist places at head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC9030  Delphinium decorum subsp. tracyi Doris K. Kildale 1929-4-28 7464 Humboldt Between Little Van Duzen River and Dinsmores on Eureka-Red Bluff Road Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  RSA152334  Delphinium hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley, Willow Creek Comment
  HSC100901  Delphinium menziesii Carl C. Marshall Apr 1887 380 Humboldt Hoopa Valley. Comment
  SEINET12099565  Delphinium nudicaule J. P. Tracy 1950-1 18815 Humboldt Mail Ridge, N of Harris 7 mi, "Huestis Rock" on NE side of Ridge Comment
  CAS-BOT-BC121967  Delphinium trolliifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC121977  Delphinium trolliifolium Albert Michael Vollmer; L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec Comment
  HSC45269  Delphinium trolliifolium M. Alcasas 1978-6-3 122 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  SD58244  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  HSC35449  Deschampsia cespitosa J. D. Ackerman 1975-8-2 607 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  CAS-BOT-BC194290  Deschampsia cespitosa subsp. cespitosa Doris Kildale 1931-5-10 10679 Humboldt Snow Camp Comment
  CAS-BOT-BC194292  Deschampsia cespitosa subsp. cespitosa Carl B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  HSC98118  Deschampsia danthonioides Cara Witte 2007-6-21 328 Humboldt Along National Forest 1. 3/4 mile north of Brays Opening. Near Board Camp area. 1365 Comment
  HSC58666  Deschampsia elongata G. L. Clifton, Griswold 1979-8-1 12080 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS75420  Deschampsia elongata W. L. Jepson 1932-7-30 16450 Humboldt Bull Creek 121 Comment
  POM207194  Deschampsia elongata Joseph P. Tracy 1901-4-26 1043 Humboldt Immediate vicinity of Eureka 0 Comment
  JEPS53431  Descurainia pinnata W. L. Jepson 1902-7-16 2049 a Humboldt Trinity Summit Comment
Read comments Jan 17 2008
  UC1196304  Dicentra formosa Joseph P. Tracy 1939-7-9 16329 Humboldt Snow Camp 1402 Comment
  UC1021939  Dicentra formosa Rolf Y. Berg 1955-6-17 Humboldt n of Wiott (Highway 101, Avenue of the Giants) Comment
  CAS-BOT-BC402413  Dicentra formosa subsp. formosa J. Cromwell; A. Thoele; J. Schneider 1994-5-6 046 Humboldt Intersection of Hwy. 299 and Redwood Valley Rd. 609 Comment
  JEPS91306  Dicentra formosa subsp. formosa Dean W. Taylor 1971-5-2 1065 Humboldt Comment
  UC146195  Dichelostemma capitatum Joseph P. Tracy 1908-6-9 2674 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC95583  Dichelostemma capitatum subsp. capitatum Andrea Pickart 2002-5-13 99 Humboldt Lamphere Dunes, Humboldt National Wildlife Refuge Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  CAS-BOT-BC501016  Dichelostemma ida-maia Lyman Benson 1930-7-18 2188 Humboldt West of Willow Creek, Seaward N. Coast, west of Trinity River 457 Comment
  HSC36566  Dichelostemma ida-maia Thomas W. Nelson, B. Reinhardt 1975-7-30 2099 Humboldt Along Whiting Ridge Comment
  POM277001  Dichelostemma ida-maia Lyman Benson 1930-7-18 2188 Humboldt W of Willow Creek, Seaward N Coast Mtn range, W of Trinity. 457 Comment
  UC1222688  Dichelostemma ida-maia Joseph P. Tracy 1950-7-1 18957 Humboldt near Friday Camp (on Friday Ridge); North Coast Ranges, Grouse Mountain 1219 Comment
  SD58400  Dichelostemma venustum Milo S. Baker 1923-7-28 138 d Humboldt Locality given as: growing within a few feet of Brodiaea Collector's #137.; not in our database at present 3/19/08; ?Baker Collector's #137 in our collection. Comment
  HSC30352  Digitalis purpurea E. A. Wise 1 Humboldt Base of Cypress Hall Dormitory, Humboldt State University Comment
  UC1145032  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River, near Slate Creek 121 Comment
  CHSC94932  Diplacus aurantiacus K. Lang; J. Lang 2005-3-16 49 Humboldt Trinidad, N. California coast. 51 Comment
  HSC7538  Dipsacus fullonum Wm. F. Bowman 1968-11-9 Humboldt Beach front of Mad River Rd. Comment
  UC1197656  Disporum hookeri Joseph P. Tracy 1924-4-27 6648 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, , Berry's 274 Comment
  RSA1088  Disporum smithii E. R. Johnson 1928-8-26 1148 Humboldt Arcata. Comment
  UC535741  Disporum smithii Eleanor Armstrong 1169 B Humboldt Richardson Grove Comment
  HSC82972  Distichlis spicata A. L. Eicher 1986-7-7 Humboldt Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  SEINET3928433  Distichlis spicata var. spicata Thomas Nelson, Doris Niles 1979-5-19 4693 Humboldt Ferndale Quad. Tidal marsh mouth of Eel River at Crab Park. North of County Park.; 0 Comment
  HSC34498  Dodecatheon hendersonii J. D. Ackerman 1975-5-3 439 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  POM252664  Downingia elegans var. corymbosa Joseph P. Tracy 1927-7-17 8270 Humboldt Three Cabins; lower western foothills of Chaparral Mt.; North Coast Ranges. 457 Comment
  RSA93304  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt Wood border opening near road about 6 miles N of Garberville Comment
  CAS-BOT-BC41359  Draba verna Doris K. Kildale 1929-4-25 7437 Humboldt Kneeland Prairie. 853 Comment
  HSC39929  Draperia systyla J. O. Sawyer 1970-6-25 2301 Humboldt 1646 Comment
  CAS-BOT-BC401535  Drosera rotundifolia Carl B. Wolf 1927-8-22 778 Humboldt Big Lagoon Comment
  SEINET13728350  Drosera rotundifolia Unknown 1914-9-6 4601 Humboldt Plants of Northern Coast Ranges of California Bald Mountain, between High Prairie and Snow Camp, Humboldt County Comment
  CAS-BOT-BC159614  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1926-5-9 1993 Humboldt Kneeland Prairie 762 Comment
  HSC76237  Drymocallis lactea var. lactea Teresa Prendusi 1981-7-21 271 Humboldt Near Whiteys Peak 1646 Comment
  HSC91599  Dryopteris expansa E. Mackey 1987-8-29 Humboldt Patrick's Pont State Park, by bridge over Penn Creek Comment
  POM281673  Dryopteris expansa Lyman Benson 1929-7-18 1847 Humboldt Weott Rangr station, Redwoods flat Comment
  CAS-BOT-BC428296  Dudleya farinosa A. A. Heller 1924-7-25 13886 Humboldt At Agate Beach near Trinidad. Comment
  RSA152345  Eleocharis acicularis var. acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow s Prairie. 61 Comment
  CAS-BOT-BC113438  Eleocharis bella Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  UC1542873  Eleocharis pachycarpa Harold E. Parks Jun 1934 5275 Humboldt Spruce Cove Trinidad Comment
  UC303018  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC58669  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12101 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC73723  Elymus glaucus M. A. Baker 1980-7-15 2959 Humboldt Near Whiting Ridge. 1341 Comment
  UC1103204  Elymus glaucus Joseph P. Tracy 1908-6 2856 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10554247  Elymus glaucus Harold E. Parks, Joseph P. Tracy 1934-6-14 Parks 11026 Humboldt Horse Mountain. In chparral. 1372 Comment
  CAS-BOT-BC203472  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-6-22 13958 Humboldt Holmes Flat 60 Comment
  UCD62528  Elymus repens R. Tofsrud 1949-7-1 Humboldt Ferndale. Comment
  HSC8763  Elymus trachycaulus subsp. trachycaulus D. W. C. 1956-6-20 19 Humboldt May Ranch, Bridgeville. 457 Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  RSA668413  Epilobium angustifolium var. macrophyllum Thomas W Stark 1967-7-18 79 Humboldt West side of U.S. Rt. 101, 1 miles south of town of McKinleyville 61 Comment
  HSC55181  Epilobium ciliatum G. L. Clifton, Griswold 1979-8-2 12199 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC76621  Epilobium ciliatum subsp. ciliatum Teresa Prendusi 1981-5-7 117 Humboldt Near Slate Creek Butte 1158 Comment
  UC205232  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5376 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC161071  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1911-7-5 3323 Humboldt along creek near mouth (creek is tributary of Trinity River); Northern Coast Ranges, Willow Creek 304 Comment
  HSC76625  Epilobium ciliatum subsp. glandulosum Teresa Prendusi 1981-7-24 481 Humboldt Near Whiteys Peak 1585 Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  UCD20169  Epilobium ciliatum subsp. glandulosum J. M. Tucker 1948-9-3 1858 Humboldt Clear Lake, near junction of Friday Ridge Road and Horse Mountain-Grouce Mountain Road. Comment
  JEPS43903  Epilobium ciliatum subsp. watsonii W. L. Jepson 1936-8-17 17911 Humboldt 2 mi s Field's Landing (near Still's ranch) Comment
  UC726596  Epilobium ciliatum subsp. watsonii A. A. Heller 1923-7-9 13785 Humboldt between Eureka and Fortuna Comment
  RSA89767  Epilobium ciliatum subsp. watsonii P. A. Munz 1954-7-25 19875 Humboldt Near dunes at Humboldt Lighthouse south of Samoa. Comment
  UC1198501  Epilobium densiflorum Joseph P. Tracy 1914-6-28 4517 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC562513  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt near Ranger Station (along streamlet); Trinity Summit 1828 Comment
  HSC72791  Epilobium minutum M. A. Baker 1980-6-16 1933 Humboldt Near Monks Camp. 1097 Comment
  HSC73548  Epilobium minutum Gail Newton 1980-7-14 1473 Humboldt Near Last Chance Ridge 1219 Comment
  HSC98840  Epilobium minutum Cara Witte 2008-7-11 877 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  RSA1439  Epilobium septentrionale E. R. Johnson 1929-08 1437 Humboldt Eel River. 91 Comment
  UC1196952  Epilobium septentrionale Arthur E. Connick 1932-8-12 Humboldt Garberville 121 Comment
  HSC32543  Epilobium torreyi Thomas W. Nelson 1973-8-19 1117 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  BLMAR297  Epipactis gigantea Jennifer Anthony-Wheeler 2002-7-23 297 Humboldt Headwaters Forest Reserve, growing in a pond with large floating rafts of logs 426 Comment
  RSA70055  Epipactis gigantea Frank W. Peirson 1923-7-9 3697 Humboldt State Park on Eel River Comment
  CAS-BOT-BC57106  Equisetum X ferrissii Henry M. Pollard 1946-8-31 s.n. Humboldt Near Wilson Creek, Orleans Mt. Comment
  JEPS60147  Equisetum arvense W. L. Jepson 1932-7-24 16378 Humboldt near Camp Grant (bank of main Eel River); Eel River 91 Comment
  JEPS60127  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River near Grizzly Creek Grizzly Creek; Van Duzen River 91 Comment
  HSC866  Equisetum hyemale subsp. affine J. E. Lankila 1962-4-14 2 Humboldt W bank of Eel River, about 200 ft. N of Howe Creek Comment
  CHSC26755  Equisetum telmateia subsp. braunii M. S. Taylor 1977-8-5 1430 Humboldt Around bridge over Eel River, at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  CAS-BOT-BC213558  Eragrostis hypnoides Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  UC249866  Eragrostis pectinacea var. pectinacea Joseph P. Tracy 1924-8-31 6835 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  CAS-BOT-BC291178  Erechtites glomeratus L. R. Abrams 1916-7-18 6108 Humboldt Arcata to Trinidad, 18 mi along coast Comment
  HSC68152  Erechtites glomeratus J. O. Sawyer, J. P. Smith 1975-5-24 8081 Humboldt Off Samoa Blvd. across from the boat landing Comment
  RSA167387  Erechtites glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt Bear River Ridge, 1 mile north of Capetown. 305 Comment
  CAS-BOT-BC299909  Erechtites minimus H. M. Hall 1924-8-7 12079 Humboldt Near Orrick along highway from Crescent City to Orrick Comment
  POM51468  Erechtites minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. 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-BC298297  Ericameria nauseosa var. speciosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt 1524 Comment
  JEPS41518  Erigeron foliosus var. confinis Harley P. Chandler 1901-6-1 1427 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  UC1223139  Erigeron foliosus var. confinis Joseph P. Tracy 1950-8-8 19291 Humboldt area Granite Rock; Trinity Summit, Crogan Hole 1676 Comment
  RSA12520  Erigeron foliosus var. confinis C. B. Wolf 1934-7-3 5916 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  CAS-BOT-BC300674  Erigeron foliosus var. mendocinus Alice Eastwood; John Thomas Howell 1937-6-22 4731 Humboldt Near Alder Point Comment
  CAS-BOT-BC300683  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt At mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  JEPS94286  Erigeron glaucus Vernon Oswald and Lowell Ahart 1997-9-4 8851 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  POM357512  Erigeron glaucus J. P. Smith, T. W. Nelson 1977-6-30 9208 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC594159  Erigeron philadelphicus var. philadelphicus S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3428 Humboldt nw slopes Buck Mountain 822 Comment
  CAS-BOT-BC224259  Eriodictyon californicum P. C. Everett; E. K. Balls 1959-10-24 23953 Humboldt 2.8 mi. sw. from Siskiyou-Humboldt Co. line, Somesbar to Orleans 198 Comment
  CAS-BOT-BC259150  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  CAS-BOT-BC259152  Eriogonum latifolium Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  RSA286308  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes. Comment
  UC162627  Eriogonum luteolum var. luteolum Joseph P. Tracy 1911-7-8 3451 Humboldt along Willow Creek near its mouth Willow Creek (tributary of Trinity River) 152 Comment
  HSC54526  Eriogonum nudum Overton, Butler 1979-7-23 9464 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC43083  Eriogonum nudum var. nudum Brad Klipfel 1973-8-3 304 Humboldt N Trinity Mtn. 1860 Comment
  UC1198139  Eriogonum nudum var. nudum Joseph P. Tracy 1939-8-20 16430 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC261489  Eriogonum nudum var. nudum Carl B. Wolf 1927-8-28 1168 Humboldt Along the Blue Lake road, 9 miles from Willow Creek Comment
  SEINET11938122  Eriogonum nudum var. nudum H. P. Chandler 1901-1 1491 Humboldt Klamath River 305 Comment
  UC146155  Eriogonum nudum var. nudum Joseph P. Tracy 1908-6 2811 Humboldt opposite Buck Mountain (Valley of Van Duzen River); North Coast Ranges, Valley of Van Duzen River 304 Comment
  UC176714  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3757 Humboldt Alton 30 Comment
  UC370871  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt near Humboldt-Mendocino County Line (South Fork of Eel River); Northern Coast Ranges, South Fork of Eel River 152 Comment
  SEINET11938137  Eriogonum nudum var. oblongifolium J. P. Tracy 1950-1 19373 Humboldt Slat Creek Comment
  UC1198146  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1948-8-8 18095 Humboldt near school house; Iaqua 609 Comment
  POM273091  Eriogonum umbellatum var. argus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  SEINET13095713  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 Comment
  UCR131739  Eriogonum umbellatum var. nelsoniorum C. B. Wolf 1937-8-13 09221 Humboldt North Coast Range, 8 miles east of Hoopa Valley on new road toward Trinity Summit 1475 Comment
  SEINET5332487 Image available Eriogonum umbellatum var. nelsoniorum J. L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt round and 9.3 air miles westof Hyampom, 1295 Comment
  HSC5610  Eriophyllum lanatum H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC73142  Eriophyllum lanatum M. A. Baker 1980-5-18 1332 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC301008  Eriophyllum lanatum var. achilleoides Harold E. Parks; Joseph P. Tracy 1934-6-27 11063 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC301011  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1928-7-24 5277 Humboldt Horse Mountain 914 Comment
  HSC56464  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-12 7262 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC75943  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-24 9706 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC1223126  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1944-7-3 17480 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  CAS-BOT-BC301686  Eriophyllum lanatum var. lanceolatum Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet Ranch Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  UC582675  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC301923  Eriophyllum staechadifolium W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UCR39816  Erodium botrys L. P. Janeway 1984-5-13 771 Humboldt Kneeland/Bridgefield Road c. 5 mi. east of the Kneeland Post Office 762 Comment
  UC176874  Erodium cicutarium Joseph P. Tracy 1912-6-9 3675 Humboldt Alton Northern Coast Region 30 Comment
  HSC97471  Erodium cicutarium C. Witte 2007-5-10 20 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  UC1714546  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-10-20 4001 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC41570  Erysimum capitatum Doris K. Kildale 1926-3-21 1578 Humboldt Knuland Prairie. 853 Comment
  HSC6761  Erysimum capitatum var. capitatum P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC96277  Erysimum capitatum var. capitatum Jennifer Lumbert, James Robinson 2005-6-15 13 Humboldt NE of Grouse Mtn., below road 1327 Comment
  SEINET13732744 Image available Erythranthe primuloides Joseph P. Tracy 1932-1 10534 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  SEINET3991734  Erythronium californicum Unknown 1918-5-1 4897 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC504309  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt Top of Horse Mountain 1219 Comment
  SEINET10834222  Erythronium californicum Frank W. Gould 1939-5-30 Gould 826 Humboldt Top of Horse Mountain, in open Libocedrus-Pinus Jeffreyi-P. monticola forest; 4000 feet. 1220 Comment
  HSC15487  Erythronium citrinum var. citrinum R. A. Rasp 1964-4-5 29 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC100888  Erythronium hartwegii Carl C. Marshall Jul 1886 334 Humboldt Trinity summit E of Hoopa. 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-BC403035  Eschscholzia californica Doris K. Kildale 1927-6-25 3548 Humboldt Shelter Cove Comment
  HSC16748  Eschscholzia californica R. T. Forester 1963-4-23 20 Humboldt 1 mi. N of Fairhaven on Samoa Rd. Comment
  HSC16761  Eschscholzia californica A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 100 yards W of Lindsey Creek Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC58813  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-8-1 12049 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC103834  Eucephalus tomentellus Haggard 2000-8-22 71957 Humboldt Along US Forest Service Rd. 1, southeast of Blue Lake Comment
  BLMAR290  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-5-22 290 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  UC1198984  Euphorbia crenulata Joseph P. Tracy 1926-4-11 7409 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1198971  Euphorbia crenulata Joseph P. Tracy 1919-5-31 5156 Humboldt near Willow Creek (slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  UC164833  Euphorbia crenulata Joseph P. Tracy 1909-8-29 3083 Humboldt top of Humboldt Hill Northern Coast Region, Humboldt Bay Region (Humboldt Bay Region) 0 Comment
  UC302052  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; North Coast Ranges 0 Comment
  HSC9991  Festuca arundinacea D. E. Anderson 1965-9-5 4084 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC1152015  Festuca arundinacea Joseph P. Tracy 1951-6-21 19522 Humboldt back of Everett Beck house; Hydesville Comment
  UC180429  Festuca californica Joseph P. Tracy 1913-6-21 4250 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC187111  Festuca elmeri J. P. Tracy 1903-5-23 1899 Humboldt Alder Point, on Eel River Eel River 243 Comment
  POM206178  Festuca idahoensis H. P. Chandler 1901-06 1381 Humboldt Hupa Indian Reservation. 305 Comment
  HSC70661  Festuca occidentalis Gail Newton 1980-7-14 1544 Humboldt Near Deadman Ridge 1097 Comment
  HSC75355  Festuca occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3644 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC98580  Festuca occidentalis Cara Witte 2007-5-23 95 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1391 Comment
  POM198239  Festuca occidentalis Jos Burtt Davy, W. C. Blasdale 1899-6-11 5472 Humboldt Near Elk Prairie. Comment
  RSA123495  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1152013  Festuca occidentalis Joseph P. Tracy 1951-6-26 19557 Humboldt Snow Camp Comment
  UC187115  Festuca occidentalis Joseph P. Tracy 1911-6-4 3229 Humboldt along Little River, 5 mi from the coast Northern Coast Ranges, Little River 121 Comment
  UCD66180  Festuca occidentalis A. H. Murphy 1948-6-30 Humboldt 2 miles west of McComb's Ranch, Bald Hills, 7-8 miles southeast of Orick. Comment
  UC1132021  Festuca rubra H. S. Yates 1936-6-17 5688 Humboldt 1 mi w Bridgeville; Dyerville Quad. 182 Comment
  UC1145216  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek 762 Comment
  SEINET10559491  Festuca subulata Joseph P. Tracy 1935-7-27 Tracy 14295 Humboldt Moist stream bank. Trinity summit. Open places at McKay Prairie. 1585 Comment
  HSC9949  Festuca subuliflora L. M. Malloy 1965-5-20 32 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  SEINET11826851  Filago gallica J. P. Tracy 1948-1 18038 Humboldt halfway between Bridgeville & Blacksburg, along Larrabee Creek Comment
  CHSC27897  Fragaria chiloensis Phil Blumert 1978-3-25 1 Humboldt Along beaches, ca. 100 m w of intersection of 'C' Rd and Ocean View Drive, Patrick's Point 5 km n of Trinidad. Comment
  CHSC68501  Fragaria chiloensis Vernon H. Oswald 1997-4-10 8327 Humboldt Elk Head, north end of Trinidad State Beach. Near the bluffs overlooking the ocean. 30 Comment
  HSC18620  Fragaria chiloensis R. A. Rasp 1964-5-20 49 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere Ranch Comment
  HSC90467  Fragaria chiloensis Jean Hanson 1980-3-8 30 Humboldt Indian (Gunther) Island, in Humboldt Bay. W end of island, 200 ft. from SW shore Comment
  CAS-BOT-BC457924  Fragaria vesca subsp. californica Doris K. Kildale 1927-4-17 3100 Humboldt Briceland Bridge, 1/2 mi. west of Garberville. 114 Comment
  HSC45262  Fragaria virginiana M. Alcasas 1978-6-3 120 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  CAS-BOT-BC59956  Frangula purshiana Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon. Comment
  CAS-BOT-BC59957  Frangula purshiana H. E. Parks; S. T. Parks 1937-6-1 24018 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC59959  Frangula purshiana H. E. Parks; S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove, Trinidad. 64 Comment
  UCD112832  Frangula purshiana T. I. Storer 1931-7-1 2219 Humboldt northwest coast of county. Comment
  CAS-BOT-BC217695  Fraxinus latifolia Doris K. Kildale 1926-4-18 1783 Humboldt Bridgeville 228 Comment
  HSC39183  Fraxinus latifolia D. E. Anderson, J. P. Smith 1971-6-28 1217 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  SEINET200745  Fritillaria lanceolata Joseph P. Tracy 1940-5-17 16549 Humboldt McClellan Mountain. 762 Comment
  CAS-BOT-BC130446  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie - summit 853 Comment
  CHSC31315  Galium aparine Mark Stopher 1980-6-4 84 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC102634  Galium aparine M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1619 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC416655  Galium aparine Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5403 Humboldt Hubbard's Station North Coast Ranges Comment
  UC594156  Galium aparine S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3427 Humboldt nw slopes Buck Mountain 822 Comment
  UC1196097  Galium bifolium Joseph P. Tracy 1930-7-16 8906 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC602547  Galium bifolium Joseph P. Tracy 1932-7-11 10407 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC70395  Galium bolanderi M. A. Baker 1980-6-7 1846 Humboldt Near Ammon Creek 732 Comment
  HSC98081  Galium bolanderi Cara Witte 2007-7-3 415 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  HSC100642  Galium californicum Carl C. Marshall Jul 1887 400 Humboldt Spruce Grove. Comment
  UC602540  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  HSC69762  Galium divaricatum Thomas W. Nelson, Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek Comment
  JEPS52828  Galium muricatum L. T. Dempster and G. L. Stebbins 1963-7-10 3859 Humboldt along creek w junction with Eel River (steep ne-facing slope); Bull Creek 60 Comment
  JEPS52848  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3858 Humboldt 6.8 mi w mouth of Bull Creek; Bull Creek (settlement) 91 Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  UC416651  Galium triflorum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  JEPS20468  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi se Blue Lake; Canyon Creek 365 Comment
  CAS-BOT-BC303400  Gamochaeta ustulata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC33077  Gamochaeta ustulata Thomas W. Nelson, Jim Ackerman 1974-5-14 1266 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  UC175604  Gamochaeta ustulata Joseph P. Tracy 1913-6-21 4255 Humboldt Dinsmore's Ranch, opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  CAS-BOT-BC303389  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt Near Orick, on Bald Hills Rd, 2 miles NE of Orick 152 Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  UC1196887  Garrya elliptica Joseph P. Tracy 1921-2-27 5414 Humboldt Drakes Hill; Northern Coast Region 30 Comment
  UC154057  Garrya elliptica J. P. Tracy 1901-2-22 993 Humboldt immediate vicinity Eureka 0 Comment
  UC154097  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UCD121101  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UCSB72517  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
  CAS-BOT-BC282615  Gastridium phleoides Henry M. Pollard 1944-9-17 s.n. Humboldt Near Orleans Comment
  RSA303466  Gaultheria shallon Jim Shevock 1971-5-29 1140 Humboldt Trinity Hwy. 457 Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  JEPS27564  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  POM223144  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  HSC40848  Gayophytum humile Thomas W. Nelson 1976-7-9 3002 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  RSA13517  Gentiana newberryi H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  HSC57988  Gentiana plurisetosa G. L. Clifton, Griswold 1979-7-31 11730 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA245252  Gentiana sceptrum David K. Smith 1968-10-26 30 Humboldt At Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  UC1198642  Gentiana sceptrum Joseph P. Tracy 1920-8-29 5393 Humboldt Dows Prairie Northern Coast Ranges 45 Comment
  UC524128  Gentiana sceptrum Ira L. Wiggins 1932-7-19 5892 Humboldt 1.5 mi n Trinidad Head Comment
  HSC8642  Geranium bicknellii D. E. Anderson 1963-5-25 2497 Humboldt 4 mi. E of Petrolia. Comment
  UC1197408  Geranium dissectum Joseph P. Tracy 1934-6-28 13266 Humboldt s end Humboldt Vay; Salmon Creek Valley 9 Comment
  UC195434  Geranium dissectum Joseph P. Tracy 1915-6-27 4656 Humboldt Carlotta 60 Comment
  UC1198959  Geranium oreganum Joseph P. Tracy 1924-4-27 6663 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC73561  Gilia capitata Gail Newton 1980-7-14 1499 Humboldt Near Last Chance Ridge. 1219 Comment
  UC907902  Gilia capitata subsp. pacifica Joseph P. Tracy 1948-9-25 18225 Humboldt Eureka Comment
  HSC16988  Gilia millefoliata L. H. Myers 1963-5-13 14 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  SBBG5887  Gilia millefoliata H. and M. Dearing 1939-5-25 3432 Humboldt near Samoa Comment
  SD197869  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt Samoa Peninsula near Eureka, along Highway 255, 1.5 mile south of Samoa intersection, west side of highway. 7 Comment
  UC23861  Gilia tricolor subsp. tricolor C. C. Marshall 1888-1 Humboldt Comment
  UC562469  Glaux maritima Joseph P. Tracy 1926-8-29 7780 Humboldt around Humboldt Bay (Northern Coast Region, Mad River Slough); Northern Coast Region, Mad River Slough 3 Comment
  SEINET12118385  Glehnia leiocarpa L. R. Abrams 1916-1 6140 Humboldt at Trinidad Comment
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  HSC74696  Glyceria elata Gail Newton 1981-7-23 2286 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC76548  Glyceria elata Denis Kearns 1981-7-23 433 Humboldt Near Whiteys Peak. 1524 Comment
  RSA15558  Gnaphalium chilense var. confertifolium C. B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  SEINET11849375  Gnaphalium japonicum J. P. Tracy 1949-1 18591 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS33992  Gnaphalium palustre W. L. Jepson 1921-8-7 9331 Humboldt Stone Lagoon Comment
  SEINET11849517  Gnaphalium purpureum Unknown 1936-1 13397 Humboldt near Garberville Comment
  UC1196435  Goodyera oblongifolia Joseph P. Tracy 1934-8-31 13642 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC304730  Grindelia hirsutula John Thomas Howell 1931-6-16 6713 Humboldt 5 miles south of Garberville Comment
  CAS-BOT-BC304744  Grindelia hirsutula Marcus E. Jones 1931-7-16 29143 Humboldt Arcata Comment
  CAS-BOT-BC304758  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  CAS-BOT-BC304765  Grindelia hirsutula L. P. Janeway 1983-9-24 697 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground 3 Comment
  UC1192227  Grindelia hirsutula Malcolm A. Nobs and S. Galen Smith 1949-8-3 1179 Humboldt salt marshes around Fields Landing Fields Landing Comment
  UC1525546  Grindelia hirsutula John L. Strother 1986-10-12 1355 Humboldt on Samoa Blvd. (rte 255) w of Arcata (nw side of Arcata Bay (Humboldt Bay) opposite Emmerson Div., Sierra Pacific Inc., roadside above saltmarsh); Humboldt Bay, Arcata Bay Comment
  UC520422  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3687 Humboldt 10 mi n Trinidad 1 Comment
  CDA6054  Grindelia nana E. C. Whitney 1963-9-2 Humboldt Benbow State Park, Eel River, south of Garberville. 0 Comment
  RSA34235  Grindelia stricta var. stricta C. B. Wolf 1927-8-28 1184 Humboldt Eureka Bay, on the road to Arcata. Comment
  SDSU2706  Grindelia stricta var. stricta D. F. Howe 1964-8-10 3952 Humboldt 5.7 miles north of Eureka on #101. Comment
  HSC100584  Habenaria sparsiflora Carl C. Marshall Jun 1886 315 Humboldt Mud Spring Camp. Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC508211  Hastingsia alba Joseph P. Tracy 1935-7-24 14195 Humboldt Trinity Summit, moist rocky exposed places near ranger station 1828 Comment
  HSC91596  Hedera helix E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  HSC58152  Helenium bigelovii G. L. Clifton, Griswold 1979-8-2 12204 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  SEINET5711016  Helenium bigelovii Lowell E. Urbatsch 1990-1 6798 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the rd. to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this road (FS 7 NO4) travel 1.5 miles to another fork; continue on 7NO4N (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  UC582669  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt wet meadow at McKay Camp; South Fork Mountain 1676 Comment
  UC582671  Helenium bigelovii Joseph P. Tracy 1937-8-12 15627 Humboldt Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  RSA18613  Helenium bolanderi C. B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC175963  Helenium bolanderi Joseph P. Tracy 1912-7-24 3808 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC582666  Helenium puberulum Joseph P. Tracy 1934-7-14 13405 Humboldt near Blue Lake; Mad River 15 Comment
  UC1368467  Hemizonella minima R. K. Gierisch 1969-7-1 3535 Humboldt Grouse Mtn. Six Rivers 1584 Comment
  UC582405  Hemizonella minima Joseph P. Tracy 1930-6-16 8958 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC718391  Hemizonella minima C. B. Wolf 1934-9-2 5861 Humboldt e Korbel; Snow Camp 914 Comment
  HSC1805  Hemizonia congesta subsp. tracyi William J. Ferlatte, B. D. Rogers 1966-6-15 2091 Humboldt Near Bridgeville Comment
  UC450002  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6337 Humboldt near Briceland; North Coast Ranges 304 Comment
  POM228359  Hemizonia tracyi S. K. Harris 1936-6-20 s.n. Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  POM193009  Hemizonia tracyi H. E. Parks 1930-5-25 0880 Humboldt Near Bridgeville. Comment
  CDA40920  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 3 of 3 0 Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  HSC74502  Heracleum maximum Gail Newton 1980-8-10 2049 Humboldt Near Blake Mtn. 1707 Comment
  UC169086 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3639 Humboldt Bucksport; Humboldt Bay 0 Comment
  POM288698  Heterotheca oregona var. rudis Lyman Benson 1928-7-12 477 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC79434  Heuchera micrantha Kenneth Clark 1981-4-5 1228 Humboldt Above S fork Dead Man's Gulch 114 Comment
  BLMAR81  Heuchera micrantha Jennifer Anthony-Wheeler 1994-6-2 81 Humboldt IAQUA, growing along moist, rocky banks 3/4mi from pvd 853 Comment
  CAS-BOT-BC424197  Heuchera micrantha var. hartwegii Elizabeth Parsons Hawver 1914-6-1 s.n. Humboldt Carlotta Comment
  HSC56073  Heuchera rubescens G. L. Clifton, Griswold 1979-7-31 11744 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC57002  Hieracium albiflorum Overton, Butler 1979-7-24 9588 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC67880  Hieracium albiflorum J. P. Smith 1973-5-26 6874 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC312385  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt North fork Dead Man's Gulch, Shelter Cove 106 Comment
  HSC58196  Hieracium greenei G. L. Clifton, Griswold 1979-8-2 12295 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC316004  Hieracium nudicaule Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie, Trinity Summit 1584 Comment
  HSC98079  Hieracium scouleri Cara Witte 2007-7-3 407 Humboldt White Oak Opening 1242 Comment
  CHSC10109  Hierochloe occidentalis J. W. Johnson 1962-3-14 1120 Humboldt Woods at the side of Miller Lane, Lanphere Farm, Samoa Penninsula. Comment
  UC39806  Hierochloe occidentalis W. C. Blasdale 1896-6-7 Humboldt near Kneeland Prairie Comment
  UC526829  Hierochloe occidentalis Joseph P. Tracy 1926-4-11 7401 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  POM319520  Holcus lanatus Patricia Wilder 1968-8-21 4368 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  RSA183531  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  HSC38426  Hordeum brachyantherum D. E. Anderson, J. P. Smith 1971-6-14 - 1046 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. 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
  UC682044  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3103 Humboldt Eureka, N end of city Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  HSC70402  Hordeum marinum subsp. gussoneanum M. A. Baker 1980-6-7 1843 Humboldt Near Ammon Creek 732 Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 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
  JEPS83627  Horkelia tridentata subsp. flavescens R. Raiche 1988-5-12 80113 Humboldt 6.6 mi sw Hoopa (on Bair Rd., Supply Crk. drainage) Comment
  HSC96270  Horkelia tridentata var. flavescens Wanda Naylor, Laurel Goldsmith 2005-6-24 15 Humboldt S of Grouse Mountain on NF1 1595 Comment
  HSC97225  Horkelia tridentata var. flavescens K. Auker, R. Battleson 2007-6-11 6 Humboldt 11.9 mi. S of Hwy. 299 on USFS Rd. NF1 1585 Comment
  UCSB13143  Hosackia crassifolia Breedlove, Dennis 1961-7-4 Humboldt 2.5 mi. E of the Mad River bridge on U.S. 299 426 Comment
  UCD106139  Hosackia oblongifolia A. Murphy 1951-6-25 s.n. Humboldt location unknown. 1402 Comment
  HSC102016  Hosackia oblongifolia var. oblongifolia M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 917 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC69766  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1977-9-3 3732 Humboldt Along old logging rd. just E of Pine Mtn. 1433 Comment
  CDA38356  Hydrocotyle ranunculoides W. F. Cruickshank 1961-5-27 s.n. Humboldt Arcata, Weyerhauser Lumber Co. 0 Comment
  HSC75468  Hydrophyllum fendleri var. albifrons J. O. Sawyer 1980-7-18 3615 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1239759  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-11 10422 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  UC35528  Hydrophyllum occidentale Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  HSC13539  Hydrophyllum tenuipes R. D. Zortman 1963-5-12 40 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  JEPS1640  Hydrophyllum tenuipes Milo S. Baker July, 1923 Humboldt Carlotta, probably about [Wilder's] but possibly near Dyerville Carlotta; North Coast trip, Carlotta Comment
  UC668258  Hypericum perforatum Joseph P. Tracy 1933-7-3 12641 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC401231  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  HSC100166  Ilex aquifolium J. P. Smith 2010-2-27 12708 Humboldt Azalea State Reserve SE of McKinleyville. 50 Comment
  HSC91594  Ilex aquifolium E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near entrance Comment
  RSA12527  Iliamna latibracteata Carl B. Wolf 1934-7-3 5907 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  UC668129 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 10104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments Feb 27 2012
  UC176171  Iris douglasiana Joseph P. Tracy 1912-7-14 3752 Humboldt Eureka; Northern Coast Region 0 Comment
  UC1174757  Iris douglasiana L. W. Lenz and E. K. Balls 1956-6-12 21666 Humboldt between Willow Creek and Blue Lake (U.S. Hwy 299) 365 Comment
  UCSC000156  Iris douglasiana H. L. Person 1931-7-30 s.n. Humboldt Eureka, Fieldbrook Comment
  HSC100501  Iris longipetala Carl C. Marshall May 1886 157 Humboldt Everywhere. Comment
  UCD138800  Iris purdyi R. N. Raynor 1935-2-22 s.n. Humboldt Fort Seward. Comment
  HSC45310  Iris tenax subsp. klamathensis R. York 1978-5-11 166 Humboldt Along logging road 4.5 mi. from Orleans 640 Comment
  HSC66484  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 435 Humboldt FS Rd. 12N20, 0.9 mi. from FS Rd. 15N01, Orleans 762 Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC13902  Iris tenuissima E. Andreuccetti 1964-5-2 37 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  HSC70763  Iris tenuissima R. York 1980-5-17 538 Humboldt Near Le Perron Peak 1066 Comment
  HSC13887  Iris tenuissima B. R. Templeton 1962-5-24 Humboldt Berry Summit, E slope Comment
  HSC49177  Iris tenuissima J. O. Sawyer 1977-4-23 2847 Humboldt Bluff Creek Campground Comment
  RSA135922  Iris tenuissima Lee W. Lenz 1953-5-17 18319 Humboldt 1 mile west of Willow Creek, Highway 299 Comment
  JEPS93173  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 Comment
  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-BC340157  Jaumea carnosa Joseph P. Tracy 1939-8-6 16399 Humboldt Big Lagoon 6 Comment
  HSC95092  Jaumea carnosa Andrea Pickart 2002-6-27 120 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  UC1199148  Jaumea carnosa J. P. Tracy 1901-8-7 1251 Humboldt salt marsh Samoa (immediate vicinity of Eureka) 0 Comment
  UC184199  Juncus ambiguus Joseph P. Tracy 1912-6-16 3699 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region, , Hookton 0 Comment
  UC249542  Juncus bolanderi Joseph P. Tracy 1921-10-16 5971 Humboldt near Willow Creek (mouth of South Fork Trinity River); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC98704  Juncus effusus Cara Witte 2007-7-25 574 Humboldt Waterhole off FS Road 5N10. 2 mi E of intersection with National Forest 1. 1369 Comment
  UC1152106  Juncus effusus subsp. pacificus Joseph P. Tracy 1930-11-9 9247 Humboldt just n Arcata (on Redwood Highway) Comment
  UC1101013  Juncus ensifolius Malcolm A. Nobs and S. Galen Smith 1949-8-3 1199 Humboldt s outskirts Eureka Comment
  UC1103055  Juncus ensifolius Joseph P. Tracy 1900-9-9 947 Humboldt near mouth of Yager Creek; Northern Coast Ranges 60 Comment
  UC1103053  Juncus falcatus var. falcatus J. P. Tracy 1901-8-7 1273 Humboldt opposite Eureka (Sand Hills of Ocean Beach); Samoa Comment
  UC184194  Juncus hemiendytus var. hemiendytus Joseph P. Tracy 1913-6-17 4168 Humboldt near Buck Mountain summit; Northern Coast Ranges 1524 Comment
  RSA168867  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt Carlotta. 61 Comment
  HSC14065  Juncus hesperius R. L. Jarvis 1962-4-7 13 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  HSC62860  Juncus hesperius J. M. DiTomaso 1979-5-16 1015 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  SEINET11789588  Juncus hesperius J. P. Tracy 1938-1 15938 Humboldt vicinity of Carlotta, 2 mi E of town 30 Comment
  JEPS67119  Juncus kelloggii Joseph P. Tracy 1914-5-14 4431 Humboldt Fort Seward 121 Comment
  RSA126572  Juncus patens H. S. Yates 1936-6-23 5858 Humboldt 2 miles southeast of mouth of Mad River. 305 Comment
  HSC85846  Juncus phaeocephalus var. phaeocephalus L. P. Janeway 1983-9-24 698 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  UCD141722  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt east side of Route 101, near Exit 728 for Trinidad Beach. 110 Comment
  HSC71728  Juncus tenuis M. A. Baker 1980-6-26 2453 Humboldt Near Sims Creek 610 Comment
  HSC73067  Juniperus communis var. saxatilis M. A. Baker 1980-6-16 1954 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC235887  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 mi. so. of Petrolia on Matole [Mattole] River near where road crosses river Comment
  POM225119  Keckiella corymbosa Philip A. Munz 1936-8-9 14328 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  UC1193337  Keckiella corymbosa P. Zinke 184 Humboldt 300 yds nw of summit King Peak 1249 Comment
  HSC98709  Keckiella lemmonii Cara Witte 2007-7-27 605 Humboldt Forest Service Road 4N32. 1.5 mile N of intersection with Forest Service Road 4N32B. 1585 Comment
  RSA244957  Kickxia elatine David Johnson 1973-11-15 s.n. Humboldt Growing along West End Rd. ca 50 yds. north of the highway 101 overpass. Beside the railroad tracks. Comment
  HSC61762  Kickxia spuria Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan, 1 mi. above Pecwan, upper road Comment
  SEINET200338 Image available Koeleria macrantha J. P. Tracy 1917-6-17 4819 Humboldt Bluff at Ocean Niero Cemetery 61 Comment
  UC1051588  Lactuca saligna Joseph P. Tracy 1946-8-25 17649 Humboldt Alton, Fortuna 15 Comment
  SEINET11811175  Lactuca serriola J. P. Tracy 1949-1 18403 Humboldt Trinity River valley, at Willow Creek 152 Comment
  UC668198  Lagophylla ramosissima Joseph P. Tracy 1938-7-4 15993 Humboldt Valley of South Yager Creek 762 Comment
  CHSC79684  Lamiastrum galeobdolon Gordon Leppig; Kai Neander 2000-4-13 1292 Humboldt Arcata. 100 m south of trail 5 and 10 intersection. UTM zone 10, 4527N, 40E. 91 Comment
  UC1223224  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard, along road near old house, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC99476  Lapsana communis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 133 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC352933  Lasthenia glaberrima Joseph P. Tracy; Harold E. Parks 1935-6-16 11274 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  CAS-BOT-BC123327  Lathyrus biflorus T. W. Nelson; James L. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. NE slope of Red Mountain. 1371 Comment
  UC1222418  Lathyrus glandulosus Joseph P. Tracy 1949-6-20 18313 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1222400  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1946-5-4 17523 Humboldt w side near sw corner Hoopa Valley Comment
  RSA245212  Lathyrus littoralis J. E. Walters 1966-4-13 35 Humboldt 1/4 miles N. of Samoa Pulp Mill. 5 Comment
  RSA246792  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35221 Humboldt Samoa Peninsula. 3 Comment
  UC162839  Lathyrus littoralis Joseph P. Tracy 1906-5-13 2451 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC15342  Lathyrus nevadensis var. nevadensis State Survey 1800-1 Humboldt Comment
  CAS-BOT-BC205039  Lathyrus palustris Charlotte M. Hoak 1931-7-15 s.n. Humboldt Big Lagoon Comment
  CAS-BOT-BC205040  Lathyrus palustris Milo S. Baker 1931-7-17 5407 Humboldt South side of Big Lagoon near cottages Comment
  CAS-BOT-BC205042  Lathyrus palustris Doris K. Kildale 1926-6-25 2177 Humboldt Big Lagoon Comment
  HSC100519  Lathyrus polyphyllus Carl C. Marshall Mar 1886 147 Humboldt Near Mad River. Comment
  UC162840  Lathyrus polyphyllus Joseph P. Tracy Jun 27 1908-Jun 30 1908 2731 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD106343  Lathyrus polyphyllus W. A. Williams Date unknown s.n. Humboldt location unknown. Comment
  HSC18847  Lathyrus sphaericus Cherry Kline 1971-5-31 45 Humboldt 1.5 mi. NW of Petrolia on side of Mattole Rd. Comment
  UC1199066  Lathyrus torreyi Joseph P. Tracy 1922-6-5 6084 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  UC162788  Lathyrus vestitus Joseph P. Tracy 1906-6-24 2498 Humboldt near Field's Landing (s slope of Humboldt Hill); Northern Coast Region, Humboldt Bay Region, Humboldt Hill 0 Comment
  HSC14706  Lathyrus vestitus subsp. bolanderi H. E. Parks Jun 1931 1082 Humboldt Kneeland Comment
  HSC81966  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson, Jane P. Nelson 1979-7-3 4942 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  RSA64054  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-7 19081 Humboldt Redwood Highway ca 15 miles N of Garberville. Comment
  UC495637  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC380899  Layia platyglossa Volney Rattan 1877-4-10 196 Humboldt Eureka Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UC249862  Leersia oryzoides Joseph P. Tracy 1924-8-31 6836 Humboldt Klamath River at Bluff Creek Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  UC1239531  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1921-7-10 5848 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1116218  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt vicinity Carlotta 30 Comment
  UCD115838  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt Vicinity of Carlotta. 30 Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC17073  Leptosiphon androsaceus G. N. Bos 1965-5-15 262 Humboldt 3 mi. W of Berry Summit along U.S. 299 610 Comment
  UCD118596  Leptosiphon androsaceus Joseph P. Tracy 1948-6-13 18048 Humboldt near Harris (2 miles north.) 609 Comment
  RSA0096840  Leptosiphon filipes Joseph P. Tracy 1950-5-30 18710 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  UC34537  Lessingia nemaclada Hy-Am Pum 1888-7-23 Humboldt Comment
  CAS-BOT-BC334615  Leucanthemum vulgare L. R. Abrams 1916-7-18 6076 Humboldt Between Arcata and Trinidad Comment
  SEINET4691296 Image available Leucanthemum vulgare Joseph P. Tracy 1918-1 5080 Humboldt Northern Coast Range; Around Humboldt Bay; Humboldt Hill 152 Comment
  HSC5358  Leucanthemum vulgare John A. Dubois 1962-5-23 19 Humboldt 20 mi. E of Arcata. Comment
  CAS-BOT-BC444058  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC98516  Lewisia triphylla C. Witte 2007-5-18 45 Humboldt Near Bottleneck Spring. 1575 Comment
  JEPS17514  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad Northern Coast Ranges, Trinidad 60 Comment
  UC1198244  Lilium occidentale Joseph P. Tracy 1927-7-18 8290 Humboldt Table Bluff 91 Comment
  UC1198233  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 A Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1198235  Lilium pardalinum Joseph P. Tracy 1924-7-4 6714 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  UC1198230  Lilium rubescens Joseph P. Tracy 1914-9-6 4616 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  UC13797  Lilium washingtonianum subsp. purpurascens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC1197410  Limnanthes douglasii Joseph P. Tracy 1930-5-25 8710 Humboldt Larrabee Valley Northern Coast Ranges 670 Comment
  UC1197413  Limnanthes douglasii Joseph P. Tracy 1922-5-29 6064 Humboldt Head of South Yager Creek Northern Coast Ranges 762 Comment
  UC1197415  Limnanthes douglasii Joseph P. Tracy 1927-5-8 7981 Humboldt Phillipsville Northern Coast Ranges (facing South Fork of Eel River) 121 Comment
  JEPS19584  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi upstream from mouth; Bear River 152 Comment
  CHSC89511  Limnobium laevigatum Gordon Leppig; T. LaBanca 2003-3-13 1823 Humboldt Arcata, Alder Grove Pond. On south shore of wetland. UTM Zone 10, 428185 N, 410100 E. 9 Comment
  HSC16906  Limonium californicum C. B. Wolf 1927-8-28 1187 Humboldt Eureka Bay, on the road to Arcata Comment
  HSC95099  Limonium californicum Andrea Pickart 2002-6-27 121 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  JEPS58165  Linanthus androsaceus Lincoln Constance 1934-5-29 723 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC1222731  Linanthus androsaceus Joseph P. Tracy 1950-6-15 18817 Humboldt 7 mi n Harris (at Huestis Rock, ne side of Mail Ridge); Mail Ridge, Huestis Rock Comment
  UC1198571  Linanthus bicolor Joseph P. Tracy 1906-6-10 2483 Humboldt Kneeland Prairie, at Fitzgerald's Northern Coast Ranges 762 Comment
  HSC98065  Linnaea borealis Cara Witte 2007-7-12 523 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC56469  Linnaea borealis subsp. longiflora Griswold, Butler 1979-7-12 7292 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  RSA0087554  Linnaea borealis subsp. longiflora Joseph P. Tracy 1950-6-21 18857 Humboldt Willow Creek Canyon, along Trinity Highway, east of crossing of Cedar Creek. 762 Comment
  UC169339  Linnaea borealis var. longiflora Joseph P. Tracy 1911-7-12 3521 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek (at Three Creeks); Northern Coast Ranges, bwt Three Creeks and Willow Creek mou 914 Comment
  UC774996  Linnaea borealis var. longiflora Carl B. Wolf 1937-8-13 9265 Humboldt on new road towards Trinity Summit 12 mi e Hoopa Valley; North Coast Range, e of Hoopa Valley 1676 Comment
  SDSU8125  Linum bienne D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101. Comment
  RSA174011  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19004 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  RSA476670  Lithocarpus densiflorus var. densiflorus Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  UC1196494  Lithophragma campanulatum Joseph P. Tracy 1932-7-18 10700 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains, , head of Brett Hole 1828 Comment
  UC1225758  Lobularia maritima Joseph P. Tracy 1947-7-8 17760 Humboldt Eureka 30 Comment
  CAS-BOT-BC342349  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC283405  Lolium multiflorum Carl B. Wolf 1927-8-29 1215 Humboldt Seacoast, Devil's Gate, S of Cape Mendocino Comment
  UC163617  Lolium multiflorum Joseph Burtt Davy 1899-6-15 5527 Humboldt Scotia Comment
  HSC64156  Lolium perenne J. O. Sawyer, K. A. Sawyer 1979-6-24 3403 Humboldt Slopes alongside Aikens Creek. 366 Comment
  POM188113  Lolium perenne Marcus E. Jones 1931-7-16 29212 Humboldt Arcata. Comment
  UC249793  Lolium perenne Joseph P. Tracy 1923-8-25 6539 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC50504  Lolium perenne Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6204 Humboldt Arcata; Russ Ranch Comment
  POM206150  Lolium perenne subsp. multiflorum Jos Burtt Davy, W. C. Blasdale 1899-08 6169 Humboldt Near Garberville Comment
  UCD66673  Lolium temulentum M. A. Jargas 1926-6-8 Humboldt Happy Valley. Comment
  JEPS14213  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1927-3-27 7852 Humboldt near the S. Fork Trinity R. Valley 182 Comment
  JEPS17125  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1902-6 1891 Humboldt Fort Seward Ranch ridge (= Mail Ridge) 1066 Comment
  UC314597  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1923-6-27 6380 Humboldt near the South Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC56225  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-8-2 12261 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC97637  Lomatium macrocarpum Cara Witte 2007-5-21 58 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  UC1222606  Lomatium nudicaule Joseph P. Tracy 1951-6-26 5056 Humboldt Board Camp Mountain, N side; at extreme head of Redwood Creek 1541 Comment
  HSC44441  Lomatium tracyi Barbara Kelly 1978-5-1 592 Humboldt Intersection with road sign saying Grouse Mtn. Lookout 2 mi., Horse Mtn. 15 mi. Comment
Read comments Jan 16 2014
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  HSC45502  Lomatium utriculatum M. Alcasas 1978-4-7 6 Humboldt Beside Barry Rd., 125 yds. from junction with Freshwater Rd. 857 Comment
  OBI77140  Lomatium utriculatum Tracey Call, Viola Call 1964-6-20 2272 Humboldt Above Van Duzen river 7 mi east of Bridgeville 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
  JEPS12840  Lonicera hispidula var. vacillans Lincoln Constance 1934-5-29 717 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC169064  Lonicera hispidula var. vacillans Mrs. M. H. Manning 1901-1 Humboldt near Hupa Comment
  SD51253  Lonicera involucrata Darley F. Howe 1961-8-1 3104 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  HSC3921  Lonicera involucrata var. ledebourii J. E. Lankila 1962-5-6 3 Humboldt W bank of Eel River across form Shively about 500 feet from Bear Creek N Comment
  HSC62683  Lonicera involucrata var. ledebourii Michelle Stevens 1979-4-21 54 Humboldt Ponds across from Clam Beach. 0 Comment
  SBBG7361  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UC162836  Lotus aboriginus J. P. Tracy 1905-9-3 2389 Humboldt immediate vicinity Eureka 0 Comment
  UC162847  Lotus aboriginus J. P. Tracy 1901-5-12 1078 Humboldt immediate vicinity Eureka 0 Comment
  UC201735  Lotus aboriginus Volney Rattan Jun 1883 Humboldt near Kneeland Prairie (e of Eureka, in R.N. forest) Comment
  HSC59116  Lotus corniculatus Terry Roth 1979-5-29 94 Humboldt Arcata, corner of Alliance and Foster Rds. Comment
  RSA406778  Lotus corniculatus J. P. Smith, T. W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just east of the drag strip. Comment
  SEINET12154168  Lotus corniculatus J. P. Tracy 1950-1 19345 Humboldt Field's Landing, 2miS of town 6 Comment
  HSC98072  Lotus crassifolius var. crassifolius Cara Witte 2007-7-12 520 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  UC726594  Lotus denticulatus A. A. Heller 1923-7-10 13791 Humboldt between Scotia and Pepperwood; Eel River Comment
  HSC45023  Lotus humistratus R. Sutherland 1978-4-23 19 .23478 Humboldt Road near head of Kinsey Ridge 732 Comment
  UCR45449  Lotus micranthus Barry Silver 1986-4-23 524 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  POM19457  Lotus micranthus Joseph P. Tracy 1917-5-30 4795 Humboldt Ocean Beach at mouth of Little River Comment
  UC1223395  Lotus micranthus Joseph P. Tracy 1938-6-8 15869 Humboldt Samoa San Dunes Comment
  UC160993  Lotus nevadensis var. nevadensis Joseph P. Tracy 1911-7-6 3358 Humboldt between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  CDA27306  Lotus purshianus T. C. Fuller 1958-6-17 1721 Humboldt Petrolia, Lower Mattole. 0 Comment
  HSC71612  Lotus unifoliolatus var. unifoliolatus J. P. Smith 1973-5-26 6835 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC58199  Luina hypoleuca Walter Overton 1979-8-2 12302 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  CAS-BOT-BC60240  Lunaria annua L. B. Kildale 1930-8-3 10359 Humboldt Chaparall Mountain at Bug Creek. 914 Comment
  CAS-BOT-BC198267  Lupinus Wm. Bridge Cooke 1946-6-11 17369 Humboldt Roadside 1 mi. N of Eureka Comment
  UC1223294  Lupinus adsurgens Joseph P. Tracy 1938-6-17 15970 Humboldt Bull Creek-Mattole Road top of ridge near Panther Gap; top of ridge near Panther Gap, Bull Creek-Mattole Road Comment
  RSA138212  Lupinus adsurgens var. lilacinus Volney Rattan 1882-06 16 Humboldt Humboldt Comment
  HSC58675  Lupinus adsurgens var. undulatus Gilbert Muth 1979-8-1 12180 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC503010  Lupinus affinis Joseph P. Tracy 1932-5-1 9877 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  JEPS85687  Lupinus albicaulis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8954 Humboldt near Blake lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  CDA27368  Lupinus albifrons var. collinus K. Eickhoff, C. M. Witte 2005-6-24 15 Humboldt Approximately 13 miles south of Highway 299 on NF1. Comment
  SD39023  Lupinus arboreus Edith A. Purer 1932-7-27 4150 Humboldt Samoa, stabilized sand dunes Comment
  UCD106622  Lupinus arboreus Roman Gankin 1965-8-6 548 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA89760  Lupinus arboreus var. arboreus P. A. Munz 1954-7-25 19882 Humboldt North of Samoa. Comment
  UC1197277  Lupinus bicolor Joseph P. Tracy 1929-5-5 8564 Humboldt along South Fork of Eel River Miranda (Northern Coast Ranges); , South Fork of Eel River 121 Comment
  UC503008  Lupinus bicolor Joseph P. Tracy 1932-5-1 9890 Humboldt vicinity Garberville; Northern Coast Ranges, vicin of Garberville 121 Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  JEPS82252  Lupinus formosus var. formosus Roger Raiche 1983-7-19 30539 Humboldt Wilder Ridge Road 1 mi n of its intersection with Kings Peak Road (and the road to Ettersburg); Wilder Ridge Road 548 Comment
  SEINET12154564  Lupinus latifolius J. P. Tracy 1941-1 16916 Humboldt Panther Gap on the Bull Crk - Mattole Rd Comment
  HSC58662  Lupinus latifolius subsp. viridifolius G. L. Clifton, Griswold 1979-8-1 11995 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  UC169334  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  SEINET12154580  Lupinus lepidus H. P. Chandler 1901-1 1498 Humboldt Klamath River 427 Comment
  UC1223264  Lupinus littoralis Joseph P. Tracy 1934-7-21 13481 Humboldt Samoa Sand Dunes Comment
  JEPS65332  Lupinus luteolus W. L. Jepson 1902-8-3 2142 Humboldt near Capetown (Adobe Hill); near Capetown 91 Comment
  UC667008  Lupinus nanus Joseph P. Tracy 1939-4-29 16231 Humboldt Hoopa Valley 106 Comment
  SEINET6932723 Image available Lupinus polycarpus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  POM66235  Lupinus rivularis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC503017  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 1/2 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC58533  Lupinus sellulus subsp. ursinus Overton, Butler 1979-7-23 9425 Humboldt Near Horse Mtn. close to Willow Creek 1478 Comment
  POM10718  Lupinus sellulus var. medius H. P. Chandler 1498 Humboldt Klamath River. 427 Comment
  RSA296811  Lupinus viridifolius Lincoln Constance 1934-5-29 714 Humboldt South Fork Eel River, Upper Look Prairie. 366 Comment
  HSC23088  Luzula comosa D. E. Anderson 1965-5-1 3565 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC27555  Luzula comosa J. D. Ackerman 1973-3-27 36 Humboldt 1.5 mi. N of Manila Comment
  HSC56410  Luzula comosa Griswold, Butler 1979-7-11 7044 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC74171  Luzula comosa M. A. Baker 1980-7-23 3182 Humboldt Near Orleans Mtn. 1859 Comment
  UCD142058  Luzula comosa Linda M. Barker 1976-6-14 1596 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC77926  Lycopodium clavatum L. P. Janeway 1984-3-14 715 Humboldt Arcata Community Forest, at edge of access road, NW-facing slope. 229 Comment
  UC577349  Lycopus uniflorus H. E. Parks and Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  JEPS432  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  SDSU11607  Lysichiton americanus D. F. Howe 1972-6-30 4845 Humboldt Trinidad Comment
  HSC89989  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  CAS-BOT-BC342806  Madia elegans Harley P. Chandler 1901-6-1 1409 Humboldt North Coast Ranges. Klamath River 243 Comment
  CAS-BOT-BC342803  Madia elegans Henry M. Pollard 1947-8-21 s.n. Humboldt Ferrian Ranch, nr. Orleans Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  UC129391  Madia exigua Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5466 Humboldt near Elk Prairie Comment
  CAS-BOT-BC344359  Madia exigua Doris K. Kildale 1927-6-25 3575 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC49904  Madia exigua Maralyn O'Meara 1973-6-12 203 Humboldt S-facing slope Comment
  HSC58359  Madia gracilis Overton, Butler 1979-8-2 12706 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74504  Madia gracilis Gail Newton 1980-8-10 2053 Humboldt Near Blake Mtn. 1707 Comment
  UC176421  Madia gracilis Joseph P. Tracy 1909-7-31 3029 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM54277  Madia gracilis subsp. gracilis M. H. Manning 1902-06 s.n. Humboldt Hupa Comment
  POM362170  Madia gracilis subsp. gracilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3607 Humboldt Along road north from Alder Spring 1555 Comment
  RSA0011631  Madia sativa R. F. Thorne, Percy C. Everett 1965-8-7 35216 -b Humboldt Samoa Peninsula. 0 Comment
  UC495630  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt three mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  RSA43873  Mahonia nervosa H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mtn., near Orleans. 1220 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-BC508515  Maianthemum dilatatum Doris K. Kildale 1925-12-20 1342 Humboldt Big Lagoon Comment
  RSA137266  Maianthemum dilatatum I. L. Wiggins 1957-6-19 14131 Humboldt East side of highway, Trinidad. Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC58003  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-7-31 11788 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC511453  Maianthemum racemosum subsp. amplexicaule Doris K. Kildale 1928-5-19 5154 Humboldt Chalk Mountain Comment
  CAS-BOT-BC511456  Maianthemum racemosum subsp. amplexicaule Joseph P. Tracy 1932-7-12 10463 Humboldt Trinity Summit, ridge east of Coral Prairie 1828 Comment
  HSC40874  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson 1976-7-9 3005 Humboldt S of Mt. lassic 1707 Comment
  UCD134381  Malacothrix D. C. Hagar 1956-8-17 89 Humboldt Three Creek's Burn, ca. 6 miles west of Willow Creek. 609 Comment
  HSC98706  Malacothrix floccifera Cara Witte 2007-7-24 572 Humboldt Ammon Ridge Road. 4 miles east of intersection with National Forest 1. 1462 Comment
  UCD113220  Malus fusca H. E. Parks 1933-4-1 4352 Humboldt Spruce Cove, Trinidad. Comment
  HSC15994  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  UC1197979  Malva nicaeensis Joseph P. Tracy 1924-6-28 6699 Humboldt Northern Coast Ranges, Hydesville Hydesville; Northern Coast Ranges, Hydesville 60 Comment
  SEINET12011533  Marah fabacea E. A. York 1990-1-10 2661 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC59708  Marah oregana Clark L. Miller 1979-5-13 2121 Humboldt N of Trinidad along Patricks Point Dr. Comment
  HSC7036  Marah oregana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC7028  Marah oregana J. W. Johnson 1962-3-31 1412 Humboldt Arcata, along the Lanphere Lane near the swamp, Samoa Peninsula Comment
  RSA144006  Marah oregana P. H. Raven, Richard Snow 1958-7-21 13650 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  RSA441241  Marah oregana Christopher Davidson 1973-5-29 2206 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  CAS-BOT-BC67837  Marsilea vestita H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC14972  Medicago polymorpha Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  HSC14974  Medicago polymorpha Jack Rockwell 1962-5-12 74 Humboldt N of Bridgeville in hillside canyon 213 Comment
  HSC14976  Medicago polymorpha D. E. Anderson 1961-9-9 1794 Humboldt Big Lagoon County Park Comment
  HSC43158  Medicago praecox R. Sutherland 1976-8-19 4 .19876 Humboldt 259 Comment
  UC184156  Melica californica Joseph P. Tracy 1912-6-9 3677 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC262469  Melica subulata Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  UC1152008  Melica subulata A. H. Murphy 1951-5-15 30 Humboldt 0.5 mi s South Fork of McCann Road Comment
  HSC71440  Melilotus albus J. P. Smith 1973-5-26 6793 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC98074  Melilotus albus Cara Witte 2007-7-12 529 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  UC195432  Mentha aquatica Joseph P. Tracy 1915-9-5 4665 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC577344  Mentha canadensis Joseph P. Tracy 1934-7-30 13501 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon); , in front of South End of Stone Lagoon 3 Comment
  UC1191792  Mentha canadensis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1241 Humboldt Town of Blue Lake; pond on s side Comment
  UC577378  Mentha canadensis Joseph P. Tracy 1933-10-15 13098 Humboldt South Fork of Eel River Miranda; Northern Coast Ranges, South Fork of Eel River 121 Comment
  JEPS63454  Mentha pulegium Joseph P. Tracy 1936-8-2 15078 Humboldt Orick 15 Comment
  CAS-BOT-BC428713  Micranthes californica Doris K. Kildale 1927-3-20 2925 Humboldt Philipsville, south fork of Eel River Comment
  UC164898  Micropus californicus var. californicus Joseph P. Tracy 1908-6-9 2653 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS5825  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie Bald Mountain (in bog) 1066 Comment
  UC180181  Microseris borealis Joseph P. Tracy 1914-9-6 4611 Humboldt peat bog near Seidell Ranch (between High Prairie and Snow Camp); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC180185  Microseris borealis Joseph P. Tracy 1914-7-4 4541 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC582430  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  UC1223196  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17169 Humboldt five mi n Garberville (along Eel River from South Fork Eel River to Scotia); Northern Coast Ranges, along Eel River from South Fork 60 Comment
  HSC103080  Microseris nutans Sydney Carothers 2014-6-12 14 Humboldt Six Rivers National Forest, Lassics Botanical Area, north slope Red Lassic 1712 Comment
  HSC57315  Microseris nutans Griswold, Butler 1979-7-10 6335 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC73576  Microseris nutans M. A. Baker 1980-7-19 3011 Humboldt Near Bret Hole. 1814 Comment
  SEINET200379  Microsteris gracilis J. P. Tracy 1930-5-4 8692 Humboldt Larrabee Valley 701 Comment
  UC1196771  Mimulus alsinoides Joseph P. Tracy 1924-4-27 6646 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC89450  Mimulus aurantiacus var. aurantiacus P. A. Daly 1984-5-8 15 Humboldt Trinidad Head 61 Comment
  JEPS35817  Mimulus aurantiacus var. aurantiacus Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8963 Humboldt just above (1/8 mi) and e Shelter Cove Comment
  RSA550829  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1115 Humboldt Just N of Miranda. 0.1 mi s of bridge over Bridge Creek along Hwy 254 (parallels Hwy 101) 101 Comment
  UC582444  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  RSA12432  Mimulus breweri Carl B. Wolf 1934-7-2 5862 Humboldt Edge of small lake at Snow Camp. (Mts. east of Korbel) Upper transition or Canadian - Abies concolor 1372 Comment
  RSA43890  Mimulus cardinalis H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  HSC31791  Mimulus dentatus Donald Spalinger 1974-4-20 18 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC55348  Mimulus floribundus Griswold, Butler 1979-7-12 7240 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  BLMAR680  Mimulus guttatus Jennifer Wheeler 2013-6-25 680 Humboldt King range, Lighthouse road, just before Mattole Beach 6 Comment
  HSC45271  Mimulus guttatus M. Alcasas 1978-6-3 116 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  POM265898  Mimulus kelloggii Lincoln Constance, R. C. Rollins 1942-5-12 2894 Humboldt At junction of Klamath and Salmon rivers, 1 mile south of Somes Bar. 152 Comment
  UC162709  Mimulus microphyllus Joseph P. Tracy 1911-7-7 3367 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC73736  Mimulus moschatus M. A. Baker 1980-7-22 3090 Humboldt Near Grogan Hole. 1676 Comment
  BLMAR687  Mimulus moschatus Jennifer Wheeler 2012-8-30 687 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  UC169323  Mimulus nasutus Harley P. Chandler 1901-6-16 1509 Humboldt Somes Bar North Coast Ranges, Klamath River 426 Comment
  HSC74275  Minuartia douglasii M. A. Baker 1980-5-23 1383 Humboldt Near Buck Mtn. 1524 Comment
  UC668122  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC433033  Mitella ovalis J. P. Tracy 1901-6-10 1133 Humboldt Immediate vicinity of Eureka 152 Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  HSC75445  Mitella trifida J. O. Sawyer 1980-7-18 3602 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC37863  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Humboldt Bay; Woodley Island Comment
  HSC72693  Moehringia macrophylla Gail Newton 1980-6-24 565 Humboldt Near Ladder Rock 67 Comment
  HSC96945  Moehringia macrophylla Ryoko Ito, Shauna McDonald 2007-6-13 8 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  UC13619  Moehringia macrophylla Chesnut and Drew 1888-8-9 Humboldt head of Redwood Creek Comment
  UCD98355  Moehringia macrophylla D. C. Hagar 1957-5-16 94 Humboldt Happy Camp Mountain, 7.5 miles southeast of Willow Creek and 5.25 milse northeast of Salyer. 1219 Comment
  CAS-BOT-BC215568  Monardella odoratissima subsp. pallida Doris Kildale Gillespie 1931-6-7 10625 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  RSA33443  Monardella odoratissima subsp. pallida Carl B. Wolf 1937-8-13 9269 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC36491  Monardella sheltonii Thomas W. Nelson, James Nelson 1975-9-3 2193 Humboldt Along N side of Ashfield Butte Comment
  SEINET3228189 Image available Monardella villosa Joseph P. Tracy 1912-8-1 3961 Humboldt Valley of Van Duzen River, opposite Buck Mountain 760 Comment
  UC577342  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15428 Humboldt Vicinity Garberville 121 Comment
  UC1225848  Monardella villosa subsp. villosa Joseph P. Tracy 1947-7-5 17782 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  HSC97469  Montia C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  UC161062  Montia diffusa Joseph P. Tracy 1906-6-10 2487 Humboldt Kneeland Prairie, near Haughey's Mill Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 609 Comment
  UC7839  Montia diffusa Harley P. Chandler May, 1901 1271 Humboldt North Coast Ranges 152 Comment
  UC176040  Morella californica Joseph P. Tracy 1913-9-9 4394 Humboldt Northern Coast Ranges: Patrick's Point Comment
  UCD110276  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD110311  Morella californica Joseph P. Tracy 1948-4-4 17956 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  CAS-BOT-BC260574  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UC1103785  Muhlenbergia filiformis H. E. Parks and Joseph P. Tracy 1934-6-27 11083 Humboldt Grouse Mt. Northern Coast Ranges 1432 Comment
  UC1145147  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt 4 mi. above mouth of S. Fork Eel R.; S. Fork Eel R. 60 Comment
  HSC12417  Myosotis sylvatica D. Santana 1970-11-15 115 Humboldt Near Fickle Hill Rd. and 7th St. Comment
  HSC47657  Myosotis sylvatica Sheila Logan 1978-4-10 180 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  HSC69535  Myosotis sylvatica R. Kalal 1979-5-20 73 Humboldt Logging road E of HSU campus, Arcata 58 Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  HSC77873  Myriophyllum sibiricum Ted Jacobson 1975-11-3 Humboldt Stone Lagoon 0 Comment
  UC1196931  Myriophyllum sibiricum Joseph P. Tracy 1913-9-9 4407 Humboldt In pond in sand dunes near mouth of Little River. 3 Comment
  JEPS79936  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek Schoolhouse Trinity River Valley, Willow Creek 152 Comment
  HSC98519  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-7 235 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1375 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  UC1198606  Navarretia intertexta Joseph P. Tracy 1936-6-10 14934 Humboldt w of mouth South Fork of Trinity River; South Fork of Trinity River 304 Comment
  UC52743  Navarretia linearifolia subsp. pinnatisecta Chestnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  UC52442  Navarretia squarrosa J. P. Tracy 1903-8-9 1932 Humboldt immediate vicinity Eureka 0 Comment
  UC1198519  Navarretia tagetina Joseph P. Tracy 1934-7-9 13344 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  HSC38261  Nemophila menziesii var. atomaria Thomas W. Nelson, James Nelson 1976-3-11 2268 Humboldt Beside Bridgeville-Kneeland Rd. at jct. with Redwood House Rd. Comment
  UC562595  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  UC562591  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7890 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC1239687  Nepeta cataria Joseph P. Tracy 1930-8-17 9155 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC60564  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  HSC37350  Notholithocarpus densiflorus var. densiflorus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 483 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC400074  Nuphar polysepala L. R. Abrams 1918-6-16 7160 Humboldt Willow Creek Comment
  CAS-BOT-BC400083  Nuphar polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi. So. of Capetown on road to Cape Mendocino 91 Comment
  HSC48251  Nuphar polysepala James Hansen 1975-5-28 Humboldt Essex pond on Essex Ranch, .5 mi. N of Hwy. 299 near Blue Lake Comment
  HSC60379  Nuphar polysepala J. M. DiTomaso 1979-4-22 908 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  UC565992  Oemleria cerasiformis P. L. Johannsen 1933-5-17 76 Humboldt Limestairs; China Flat Quad. 182 Comment
  UCD127736  Oenanthe C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. 457 Comment
  HSC16523  Oenothera glazioviana David K. Smith 1968-11-20 68 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  UC1197455  Orobanche fasciculata Joseph P. Tracy 1911-7-7 3222 Humboldt Northern Coast Ranges. Brannan Mountain, viz. ridge north of Willow Creek, between Willow and Campbell Creeks, near Summit. Comment
  BLMAR257  Orobanche pinorum Jennifer Anthony-Wheeler 1997-7-10 257 Humboldt King range, UNCOMMON, parasitized ocean spray, growing on rocky, open forest slope 304 Comment
  UC1197450  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1908-6 2881 Humboldt Valley of Van Duzen River, opposite Buck Mountain. Comment
  HSC55161  Orthilia secunda Gilbert Muth 1979-8-1 12130 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC100676  Orthocarpus faucibarbatus Carl C. Marshall Apr 1886 170 Humboldt Fields near bay. Comment
  RSA523835  Orthocarpus faucibarbatus var. albidus Gordon H. True Jr. 1936-5-12 475 Humboldt 2 miles S of Eureka. 15 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC55862  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-7-25 10871 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS43138  Oxalis oregana W. L. Jepson 1934-5-7 16696 Humboldt Bull Creek Comment
  HSC45275  Oxalis oregana Brad Klipfel 1973-4-28 6 Humboldt Along Korbel to Maple Creek County Rd. Comment
  JEPS109970  Oxalis trilliifolia D. W. Taylor 2004-6-24 19139 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles W of the junction with Forest Road 5N01. Comment
  CAS-BOT-BC318156  Packera bolanderi var. bolanderi Doris K. Kildale 1927-8-13 3856 Humboldt Across the Van Duzon River from Swimmer's Delight near Sting's Station Comment
  CHSC414  Packera bolanderi var. bolanderi M. Underhill 1952-7-12 Humboldt 121 Comment
  POM126096  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt At Eureka 0 Comment
  UC247375  Panicum acuminatum var. acuminatum A. S. Hitchcock 1915-7-13 527 Humboldt Eureka Comment
  HSC24218  Panicum capillare D. E. Anderson 1962-8-17 2289 Humboldt Dunes at Big Lagoon Co. Park. Comment
  UC535745  Panicum capillare Eleanor Armstrong 1147 Humboldt Richardson Grove Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  CDA6200  Parentucellia viscosa D. G. Kelch 2007-7-25 7 .505 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  CHSC69504  Parentucellia viscosa Vernon Oswald; Lowell Ahart 1997-9-4 8855 Humboldt Samoa Dunes Recreation Area at the south end of the North Split separating Humboldt Bay from the ocean. Near sea level. Comment
  CDA6382  Parentucellia viscosa T. C. Fuller 1958-6-17 601 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  CAS-BOT-BC259728  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt Dry Lagoon, on coast near Stone Lagoon 3 Comment
  UC1199002  Paxistima myrsinites Joseph P. Tracy 1948-8-15 18132 Humboldt on Ridge 2 mi. e. Grove's Prairie (near Elk Camp, Trinity Summit); Trinity Summit 1554 Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  UC582558  Pedicularis densiflora Joseph P. Tracy 1927-5-15 8060 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  RSA151842  Pedicularis racemosa Francia Chisaki, H. K. Sharsmith 1959-8-22 4754 Humboldt At Happy Camp adjacent to Douglas Fir Forest. Just over Trinity County line. 915 Comment
  UC218629  Pellaea mucronata var. mucronata Joseph P. Tracy 1921-5-30 5494 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC100393  Pellaea ornithopus Carl C. Marshall Apr 1887 361 Humboldt Supply Creek, a mile or two from Hoopa. Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1198048  Penstemon anguineus Doris Kildale Aug. 1925 Humboldt Trinity Summit Comment
  HSC39933  Penstemon anguineus J. O. Sawyer 1970-6-25 2292 Humboldt 1646 Comment
  JEPS11634  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  HSC103085  Penstemon purpusii Sydney Carothers 2014-6-22 6 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  RSA21653  Penstemon rattanii subsp. rattanii Carl B. Wolf 1937-6-14 8808 Humboldt North Coast Range, junction of Eureka - Kneeland Road and Maple Creek Road. 683 Comment
  HSC61046  Perideridia gairdneri subsp. gairdneri T. Jimerson, J. Pageau 1979-8-10 745 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC98965  Perideridia oregana Cara Witte 2008-7-28 943 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  CAS-BOT-BC419194  Persicaria maculosa L. R. Abrams; R. Bacigalupi 1922-6-25 8270 Humboldt Big Lagoon south of Orick Comment
  HSC76574  Phacelia bolanderi Denis Kearns 1981-7-8 142 Humboldt Near Bluff Creek 622 Comment
  UC169010  Phacelia bolanderi Harley P. Chandler June 1901 1456 Humboldt between Bluff Creek and Orleans; North Coast Ranges 304 Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  RSA249336  Phacelia corymbosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5621 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 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
  HSC57193  Phacelia mutabilis Griswold, Butler 1979-7-11 6949 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC906637  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  UC673179  Phacelia nemoralis subsp. oregonensis Lincoln Constance and Reed C. Rollins 1942-5-11 2782 Humboldt 6 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  UCD88167  Phalaris aquatica J. W. Logan 1926-6-2 s.n. Humboldt Ferndale. Rusk Ranch. Plot near house. Comment
  UC526833  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road Bald Mt.; North Coast Ranges, Bald Mt. 609 Comment
  CAS-BOT-BC76572  Philadelphus lewisii A. A. Heller 1923-7-9 13776 Humboldt About 5 miles east of Arcata along the road to Blue Lake in teh redwood belt. Comment
  CAS-BOT-BC76573  Philadelphus lewisii Alice Eastwood 1921-7-21 10655 Humboldt Carlotta Comment
  JEPS49596  Philadelphus lewisii W. L. Jepson 1902-7-29 2124 Humboldt Hupa Valley; along streams 243 Comment
  SEINET12219857  Philadelphus lewisii subsp. californicus J. P. Tracy 1950-1 18853 Humboldt along Redwood Creek, 2 mi W of Briceland Comment
  HSC58664  Phleum alpinum G. L. Clifton, Griswold 1979-8-1 12026 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  JEPS69923  Phlox adsurgens W. L. Jepson 1902-7-15 2028 Humboldt Mud Spring to Trinity Summit 1524 Comment
  HSC82620  Phlox diffusa Thomas W. Nelson 1979-7-11 5004 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC97646  Phlox diffusa subsp. diffusa C. Witte 2007-5-17 23 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC1198559  Phlox gracilis Joseph P. Tracy 1932-4-24 9824 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC15928  Phoradendron serotinum subsp. tomentosum M. C. Hartman 1963-5-11 35 Humboldt Berry summit Comment
  HSC18709  Physocarpus capitatus W. R. Rogers 1966-5-1 217 Humboldt N bank of Mad River Comment
  JEPS44662  Physocarpus capitatus Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC1541675  Physocarpus capitatus W. K. Parks June 1932 Humboldt vicinity of Trinidad Comment
  RSA175261  Picea sitchensis Robert F. Thorne 1957-9-3 19011 Humboldt Little River Beach, few miles S of Trinidad. Comment
  UCR48862  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 6 Humboldt Hwy 36 at Chantham Grove (just west of Grizzly Creek Redwoods State Park.) 91 Comment
  CAS-BOT-BC73115  Pinus lambertiana Doris K. Kildale 1928-10-7 6755 Humboldt Willow Creek Canyon, 7 miles from Willow Creek. Comment
  UC176371  Piperia michaelii Joseph P. Tracy 1912-7-21 3763 Humboldt Alton Northern Coast Ranges 30 Comment
  UC1196430  Piperia transversa Joseph P. Tracy 1949-8-4 18420 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC615024  Piperia unalascensis Beryl O. Schreiber 1934-6-6 1146 Humboldt 5 mi e Gray's Resort (road to Redding); Redwood Creek Comment
  JEPS61017  Plagiobothrys Joseph P. Tracy 1942-5-16 17355 Humboldt Garberville; 1 mi ne of town 152 Comment
  POM126241  Plagiobothrys reticulatus 1907-6-20 2568 Humboldt Eureka 0 Comment
  UC1222217  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-2 17095 Humboldt one mi e Alton Comment
  UC526822  Plagiobothrys reticulatus Joseph P. Tracy 1928-6-24 8473 Humboldt head Yager Creek (East Ranch); North Coast Ranges, head Yager Creek, East Ranch 762 Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  UC55924 Image available Plagiobothrys reticulatus var. rossianorum J. P. Tracy 1903-5-22 1878 Humboldt Alder Point Flat, on Eel River, se Humboldt County Eel River, Alder Point Flat; Alder Point Flat on Eel River, Humboldt Co. 152 Comment
  UC54757  Plagiobothrys tenellus Harley P. Chandler May, 1901 1087 Humboldt Harris 609 Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC179952  Plantago lanceolata Joseph P. Tracy 1914-5-30 4484 Humboldt near Hydesville; Northern Coast Region 60 Comment
  RSA247394  Plantago lanceolata Gary D. Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  SJSU11079  Plantago maritima H. T. Harvey 1977-7-6 608 Humboldt S Spit, Humboldt Bay Comment
  HSC95094  Plantago maritima Andrea Pickart 2002-6-27 118 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  POM319565  Platanthera Patricia Wilder 1968-8-21 4391 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  SEINET10297967  Platanthera dilatata var. dilatata Unknown 1965-8-9 s.n. Humboldt BIG LAGOON: Elev. c. 10 ft Comment
  HSC34285  Platanthera dilatata var. leucostachys Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC97555  Platanthera dilatata var. leucostachys Cara Witte 2007-6-1 174 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  HSC99474  Platanthera leucostachys K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 128 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC54529  Platanthera sparsiflora Overton, Butler 1979-7-23 9471 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC64194  Platanthera sparsiflora J. O. Sawyer, M. A. Ericksen 1979-6-23 3374 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC98061  Platanthera sparsiflora Cara Witte 2007-7-11 493 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UCSC000724  Plectritis congesta var. congesta S. C. Dyal 1938-6-11 651 Humboldt Moist places beside road east of Eureka Comment
  HSC49370  Pleuricospora fimbriolata T. Jimerson, J. Pageau 1979-6-15 582 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  UC180505  Pleuropogon refractus Joseph P. Tracy 1914-7-4 4529 Humboldt Bald Mountain, High Prairie Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD90108  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road.) Comment
  HSC10623  Poa annua Gene S. Van Horn 1962-5-2 10 Humboldt Near main house at 250 East 17th St., Arcata. 61 Comment
  UCD90384  Poa annua G. L. Stebbins Jr. 1942-6-2 3622 Humboldt 4 miles north of Bridgeville. Comment
  UC589894  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth of Little River 4 Comment
  UC594152  Poa douglasii S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  HSC10721  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 mi. W of bridge over N Fork of Mad River, along Hwy. 299 Comment
  HSC102232  Poa pratensis subsp. pratensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1153 Humboldt Patterson Meadows 1566 Comment
  HSC73572  Poa secunda subsp. secunda Gail Newton 1980-7-14 1509 Humboldt Near Last Chance Ridge. 1219 Comment
  UC180501  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4121 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC1103188  Poa trivialis Joseph P. Tracy 1938-6-17 15948 Humboldt 1 mi e Cape Mendocino (Cape Ridge) 304 Comment
  UC249871  Poa trivialis Joseph P. Tracy 1923-5-30 6245 Humboldt Salmon Creek Corners; Northern Coast Ranges, Humboldt Bay 6 Comment
  CAS-BOT-BC244206  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  UC1103176  Poa unilateralis J. P. Tracy 1919-4-27 5134 Humboldt Ocean Beach at Samoa Comment
  RSA141275  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 30 Comment
  CHSC57441  Polygala californica L. P. Janeway 1984-6-20 849 Humboldt Slope above Klamath River at unnamed 'River Access' ca 1 mi north of Orleans. 198 Comment
  HSC17225  Polygala californica J. Wendell Howe 11 May [year missing] Humboldt Kneeland Comment
  HSC64159  Polygala californica J. O. Sawyer, K. A. Sawyer 1979-6-24 3405 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC72615  Polygala californica J. P. Smith 1977-7-3 9258 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  SBBG93447  Polygala californica H. P. Chandler -Jun-1901 1328 Humboldt Hupa [Hoopa] Indian Reservation 152 Comment
  UC450153  Polygala californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5413 Humboldt Hubbard's Station to Elk Prairie; North Coast Ranges, Hubbard's Station, Elk Prairie Comment
  UC1052454  Polygala cornuta var. cornuta J. Tracy and H. E. Parks Humboldt Hors Linto Road Trinity River 609 Comment
  UC249655  Polygonum amphibium var. emersum Joseph P. Tracy 1922-9-3 6115 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  HSC12591  Polygonum aviculare C. Kline 1970-11-9 64 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  HSC17469  Polygonum aviculare D. E. Anderson 1961-9-13 1822 Humboldt Comment
  UC146191  Polygonum californicum Joseph P. Tracy 1908-6 2922 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1222470  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  HSC75441  Polygonum minimum J. O. Sawyer 1980-7-18 3608 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  BLMAR616  Polygonum paronychia Jennifer Wheeler 2011-5-20 616 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  CDA22830  Polygonum paronychia J. Riddell 2002-4-19 35 Humboldt Mad River Beach dunes. Comment
  HSC64430  Polygonum paronychia J. P. Smith 1971-10-6 4957 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC98076  Polygonum phytolaccifolium Cara Witte 2007-7-11 506 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC74386  Polygonum polygaloides subsp. kelloggii M. A. Baker 1980-6-28 2504 Humboldt Near Mad River Buttes 1445 Comment
  HSC98972  Polygonum sawatchense subsp. sawatchense Cara Witte 2008-7-2 799 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  CAS-BOT-BC421004  Polygonum spergulariiforme Doris K. Kildale 1928-6-24 5296 Humboldt Entrance to Horse Mountain 853 Comment
  UC218626  Polypodium Joseph P. Tracy 1918-4-7 4865 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  HSC70409  Polypodium californicum M. A. Baker 1980-6-7 1832 Humboldt Near Ammon Creek 732 Comment
  HSC1114  Polypodium scouleri D. E. Anderson 1961-8-25 1754 Humboldt 1.5 mi. S of Trinidad Comment
  POM319595  Polypodium scouleri Patricia Wilder 1968-8-21 4407 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  SEINET6166118  Polypodium scouleri W. D. Billings 1940-6-22 1345 Humboldt 1/2 mile north of Trinidad Comment
  UC519312  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt cliffs along shore Trinidad; Northern Coast Region 6 Comment
  HSC26536  Polypogon australis J. P. Smith 1971-10-9 5035 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC12125  Polypogon interruptus A. S. Hitchcock 1915-7-23 839 Humboldt Eureka Comment
  UCD51646  Polypogon interruptus P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia, by road through redwoods of highway. Comment
  HSC38498  Polypogon monspeliensis R. Sutherland 1976-11-9 1 Humboldt Redwood Creek, Wittemore Grove. 82 Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  UC1440060  Polystichum Danin & H. G. Baker 1960-8-14 614 b Humboldt ca. 1 mi toward Garberville from Myers Flat (Nelson Grove); Humboldt Redwoods State Park Comment
  UC1440063  Polystichum californicum Danin & H. G. Baker 1960-8-14 614 a Humboldt ca. 1 mi toward Garberville from Myers Flat (Nelson Grove); Humboldt Redwoods State Park Comment
  UC1440065  Polystichum californicum Danin & H. G. Baker 1960-9-2 658 a Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  UC519314  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1933-6-13 12596 Humboldt near summit on rd w from Hoopa to Bair's Hoopa Mt.; Northern Coast Ranges 1066 Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  SBBG307  Polystichum munitum H. and M. Dearing 1939-5-27 3455 Humboldt Patrick's Point Comment
  HSC79150  Polystichum munitum C. J. Thomas 1984-9-25 118 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC519316  Polystichum munitum Joseph P. Tracy 1933-7-21 12813 Humboldt 5 mi e Carlotta (Riverside Auto Park on Van Duzen River); North Coast Ranges 60 Comment
  HSC54558  Polystichum scopulinum Overton, Butler 1979-7-24 9567 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC87081  Populus trichocarpa Anthony J. Desch, Bryon Cariss 1988-4-23 66 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  UC176692  Populus trichocarpa Joseph P. Tracy 1913-6-22 4261 A Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC213000  Populus trichocarpa Joseph P. Tracy 1919-9-19 5258 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1828 Comment
  UC176375  Potamogeton natans Joseph P. Tracy 1913-9-9 4406 Humboldt near mouth of Little River; Northern Coast Ranges 3 Comment
  UCR70886  Potamogeton pusillus S. K. Harris 1938-9-12 s.n. Humboldt Eel River, near Fernbridge 5 Comment
  CAS-BOT-BC143077  Potentilla anserina subsp. pacifica L. R. Abrams 1916-7-18 6130 Humboldt Arcata to Trinidad Comment
  HSC38918  Potentilla anserina subsp. pacifica Linda M. Barker 1976-6-1 1556 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC90640  Potentilla anserina subsp. pacifica Gail Newton 1982-6-10 3605 Humboldt Elk River Wildlife Area, Eureka Comment
  UC154225  Potentilla anserina subsp. pacifica Joseph P. Tracy 1907-7-20 2590 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, Region about Humboldt Bay 0 Comment
  RSA12434  Potentilla gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 miles from Bald Mt. on road to Snow Camp 915 Comment
  HSC97464  Prosartes hookeri Cara Witte 2007-5-31 149 Humboldt Road to Board Camp Mountain Lookout. Along 4N38. 1/2 mile south of intersection with National Forest 1. 1330 Comment
  CAS-BOT-BC517505  Prosartes smithii L. R. Abrams 1927-9-1 12061 Humboldt Big Lagoon Comment
  HSC15480  Prosartes smithii W. F. Nickel 1965-5-15 Humboldt 0.5 mi. E of Arcata on rd. to Arcata Reservoir Comment
  SEINET12044820  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  SEINET12050369  Prosartes smithii F. H. Utech 1988-1 88 -284 Humboldt along CA 36 from Bridgeville enroute to Dinsmore Mile Marker 42.00, above Van Duzen River 800 Comment
  UC1541658  Prunella vulgaris Harold E. Parks May 1933 4309 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC14307  Prunella vulgaris David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  RSA289937  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt Bull Creek Region, South Fork Eel River 122 Comment
  CAS-BOT-BC159975  Prunus emarginata Doris K. Kildale 1927-5-14 3290 a Humboldt Big Lagoon Comment
  OBI36664  Prunus emarginata David J. Keil 1983-7-2 17323 Humboldt Ca. 4 mi SE ofSR 299 along titlow Hill Rd below Horse Mtn Summit Rd Comment
  POM89158  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Around Humboldt Bay. Mad River at Lindsey Creek. 30 Comment
  UC183605  Prunus emarginata Joseph P. Tracy 1912-7-31 3922 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain Comment
  UC604671  Pseudognaphalium californicum Joseph P. Tracy 1938-6-20 15971 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC37667  Pseudognaphalium microcephalum R. Sutherland 1976-8-19 12 .19876 Humboldt Edge of county road 259 Comment
  CAS-BOT-BC357602  Pseudognaphalium stramineum Carl B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC357600  Pseudognaphalium stramineum Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  CAS-BOT-BC80112  Pseudotsuga menziesii Doris K. Kildale 1928-10-7 6756 Humboldt Trinity River at mouth of Willow Creek Comment
  HSC102507  Pseudotsuga menziesii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1492 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC54524  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-23 9458 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC79439  Pseudotsuga menziesii var. menziesii Kenneth Clark 1980-11-28 1053 Humboldt Above Point No Pass, throughout Shelter Cove 305 Comment
  UC63997  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-4-7 Humboldt Comment
  HSC45284  Psilocarphus brevissimus R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  UC169084  Psilocarphus oregonus Joseph P. Tracy 1912-7-30 3890 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1223166  Psilocarphus tenellus Joseph P. Tracy 1950-6-29 18937 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC361929  Psilocarphus tenellus L. R. Abrams 1918-6-13 7094 Humboldt Fortuna Comment
  HSC55176  Pteridium aquilinum var. pubescens Gilbert Muth 1979-8-1 12178 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  RSA275352  Pteridium aquilinum var. pubescens J. P. Smith, Steve Selva 1970-6-14 3855 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC460598  Pyrola aphylla Doris K. Kildale 1928-6-24 5290 Humboldt HorseMountain Comment
  HSC45425  Pyrola aphylla Thomas W. Nelson, Jane Nelson 1977-7-1 3556 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  JEPS66559  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  HSC48681  Pyrola crypta Brad Klipfel 1973-7-31 244 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 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-BC94310  Quercus garryana Joseph P. Tracy 1941-3-26 16845 Humboldt South Fork of Trinity River: mountain slopes W of its mouth Comment
  HSC74269  Quercus garryana M. A. Baker 1980-5-23 1371 Humboldt Near Buck Mtn. 1524 Comment
  UC667989  Quercus garryana Joseph P. Tracy 1935-7-14 14090 Humboldt Grouse Mountain North Coast Ranges 1524 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
  POM270132  Quercus garryana var. garryana Lyman Benson 1929-7-11 1758 Humboldt North of Garberville about 10 miles. Comment
  UC667984  Quercus kelloggii Joseph P. Tracy 1938-11-26 16176 Humboldt between Miranda and Garberville (at Sylvandale); South Fork of Eel River, Sylvandale 91 Comment
  UC1196512  Quercus sadleriana Joseph P. Tracy 1935-7-23 14155 Humboldt lower end of Brett Hole Trinity Summit, Brett Hole 1584 Comment
  HSC74169  Quercus vacciniifolia M. A. Baker 1980-7-23 3187 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98847  Quercus vacciniifolia Cara Witte 2008-7-11 867 Humboldt Horse Mountain Botanical Area. National Forest 1. 1/2 mile west of intersection with Forest Service Roads 6N38 and 6N36. 1426 Comment
  CAS-BOT-BC186672  Ranunculus Mrs. H. C. Cantelow 1935-5-31 828 Humboldt 8 mi. nor. of Orick Comment
  UC1103013  Ranunculus alismifolius var. alismellus Joseph P. Tracy 1932-7-15 10588 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC379200  Ranunculus aquatilis var. aquatilis Volney Rattan 1879-1-1 s.n. Humboldt Ferndale Comment
  UC118293  Ranunculus aquatilis var. hispidulus W. W. Price 1890-6-30 Humboldt Jarnigans Comment
  RSA43857  Ranunculus cymbalaria var. saximontanus H. M. Pollard 1947-8-7 s.n. Humboldt Klamath River bed, near hoodson Mine, Orleans region Comment
  UC1103010  Ranunculus flammula Joseph P. Tracy 1930-8-3 9149 Humboldt pond near Little Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  UC1196218  Ranunculus occidentalis J. P. Tracy 1901-5-30 1107 Humboldt Immediate vicinity of Eureka 0 Comment
  UC249651  Ranunculus occidentalis Joseph P. Tracy 1922-5-29 6070 Humboldt head of South Yager Creek Northern Coast Ranges 762 Comment
  UC303000  Ranunculus occidentalis Joseph P. Tracy 1926-6-20 7618 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  SEINET6908793  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  SEINET6908794  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC1103015  Ranunculus parviflorus Harry B. Tucker 1933-6-13 Humboldt near Ferndale 15 Comment
  UC1116205  Ranunculus parviflorus Joseph P. Tracy 1946-6-15 17559 Humboldt on Trinity Hwy e Redwood Creek; Berrys Mt. 609 Comment
  POM126168  Ranunculus parviflorus W. Humboldt 1922-5-21 6053 Humboldt Blue Lake, locally common in depressions by roadside. 30 Comment
  UC1103008  Ranunculus pusillus Joseph P. Tracy 1931-5-17 9424 Humboldt opposite mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  POM87678  Ranunculus repens L. R. Abrams, Rimo Bacigalupi 1922-6-25 8276 Humboldt Big Lagoon S of Quick Comment
  UCD18404  Ranunculus testiculatus Jack Major 1982-4-18 s.n. Humboldt 13 miles east of Winnemucca on I-80, north lane. Comment
  HSC55651  Ranunculus uncinatus Overton, Butler 1979-7-24 9747 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC81964  Ranunculus uncinatus var. parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4945 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC18231  Ranunculus uncinatus var. parviflorus D. E. Anderson 1961-8-11 1735 Humboldt E of Humboldt State College campus. 30 Comment
  UC1541476  Rhamnus purshiana Harold E. Parks May 1935 5541 Humboldt Spruce Cove Trinidad Comment
  UC1537162  Rhododendron macrophyllum Gordon H. True Jr. 1936-5-12 474 Humboldt near Kneeland Post Office 762 Comment
  UC1543140  Rhododendron occidentale Frank Gould, Kay Beach 1940-5-5 1041 Humboldt along coast near Trinidad Comment
  UC604662  Rhododendron occidentale Joseph P. Tracy 1938-7-5 16014 Humboldt 4 mi s of Eureka (Spruce Point at junction of Humboldt Hill road with highway); Spruce Point 9 Comment
  HSC69697  Rhododendron occidentale var. paludosum R. Kalal 1980-6-8 16 Humboldt Azalea State Reserve 52 Comment
  UC492203  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CHSC115052  Ribes bracteosum Jessica O'Brien 2011-5-3 9231 Humboldt Near Frost Creek ca. 7.22 air miles south of Bridgeville. Triple THP. 502 Comment
  HSC37423  Ribes bracteosum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 513 Humboldt Along Lost Man Creek. 38 Comment
  HSC99479  Ribes bracteosum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 138 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  UCR45394  Ribes cruentum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3418 Humboldt Beside State Route 36 just west of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  SJSU10506  Ribes divaricatum K. K. Lind 1978-2-14 Humboldt Boise Cr Campground, Hwy 299 near community of Willow Cr, Six Rivers National Forest Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  UC154121  Ribes divaricatum var. pubiflorum J. P. Tracy 1901-4-14 1027 Humboldt opp. Eureka (ocean beach at Samoa); Samoa Comment
  CAS-BOT-BC169150  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-14 16297 Humboldt Dinsmore's along Van Duzen River, opposite Buck Mountain 762 Comment
  HSC70894  Ribes inerme var. klamathense J. M. DiTomaso 1981-5-15 2000 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  UC154125  Ribes inerme var. klamathense Joseph P. Tracy 1908-6 2767 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC206033  Ribes menziesii E. R. Johnson 1929-8-1 11211 Humboldt Arcata, Redwood Park Comment
  CAS-BOT-BC206036  Ribes menziesii Joseph P. Tracy 1948-2-22 17950 Humboldt Hydesville 91 Comment
  HSC90028  Ribes menziesii Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-9 40 Humboldt Blue Lake Rd., 0.7 mi. E of its intersection with Railroad Ave. 76 Comment
  JEPS49210  Ribes menziesii Harley P. Chandler May, 1901 1117 Humboldt Humboldt Bay North Coast Ranges 304 Comment
  HSC102620  Ribes nevadense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1607 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC1193214  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 mi w Harris Post Office (outside national forest); Quad. 29D3 853 Comment
  UC667069  Ribes roezlii Joseph P. Tracy 1933-3-5 10916 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  RSA0024753  Ribes roezlii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5594 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC57009  Ribes roezlii var. cruentum Overton, Butler 1979-7-24 9602 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET3121271 Image available Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Trinity River Valley; Willow Creek 152 Comment
  UCR45437  Ribes roezlii var. cruentum Kenneth Clark 1980-6-14 691 Humboldt Above N Fork Dead Man's Gulch 229 Comment
  RSA0024583  Ribes roezlii var. cruentum Jim R. Shevock 1972-3-26 1465 Humboldt Panther Ridge, W of Willow Creek. 305 Comment
  CAS-BOT-BC212523  Ribes sanguineum L. R. Abrams; R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon Comment
  HSC71794  Ribes sanguineum Gail Newton 1980-6-16 174 Humboldt Near Monks Camp. 1097 Comment
  CDA25580  Ribes sanguineum var. sanguineum Gordon Leppig 1998-6-1 875 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC99358  Ribes sanguineum var. sanguineum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 7 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC173991  Ribes viscosissimum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 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
  HSC97475  Ribes viscosissimum Cara Witte 2007-5-23 110 Humboldt Forest Service Road 4N70 to Grouse Mountain Lookout. 1601 Comment
  JEPS79969 Image available Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  UC1198919  Ribes viscosissimum Joseph P. Tracy 1942-9-6 17308 Humboldt near McKay; South Fork Mountain 1676 Comment
  UC702003  Romanzoffia tracyi Harold E. Parks March 1946 24276 Humboldt ocean bluffs at Trinidad Head Comment
  UC1199221  Rorippa curvisiliqua Joseph P. Tracy 1934-7-9 13350 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC14401  Rorippa palustris Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC49683  Rosa canina J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  BLMAR77  Rosa gymnocarpa Jennifer Anthony-Wheeler 1994-6-2 77 Humboldt IAQUA, growing along logging rd 3/4mi from beginning of rd 853 Comment
  CAS-BOT-BC146488  Rosa gymnocarpa L. R. Abrams 1918-6-15 7116 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC146490  Rosa gymnocarpa Carl B. Wolf 1927-8-30 1232 Humboldt 2 mi. so. of Petrolia on Matole River near point where road crosses river Comment
  CAS-BOT-BC146492  Rosa gymnocarpa L. B. Kildale 1930-9-9 10402 Humboldt Bald Mountain 914 Comment
  POM117575  Rosa gymnocarpa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC1199039  Rosa gymnocarpa Joseph P. Tracy 1947-8-24 17888 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146844  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4825 Humboldt Near Bridgeville Comment
  HSC31638  Rosa nutkana Glenn McGourty 1974-6-1 84 Humboldt Comment
  RSA134587  Rosa nutkana Percy C. Everett, E. K. Balls 1959-10-25 23973 Humboldt 11.6 miles SW from Ferndale on Old Coast Road to Capetown. 244 Comment
  UC1199026  Rosa nutkana var. nutkana Joseph P. Tracy 1927-7-4 8230 Humboldt Sibley Ranch Iaqua 609 Comment
  HSC89515  Rubus armeniacus M. Roantree 1985-6-10 81 Humboldt East side of Trinidad Head Comment
  HSC57115  Rubus leucodermis Overton, Butler 1979-7-25 9858 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC147245  Rubus parviflorus L. R. Abrams 1916-7-11 6013 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  HSC31795  Rubus parviflorus Steve Selva, Roger Jensen 1974-8-28 98 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC77922  Rubus parviflorus L. P. Janeway, Paul Wilson 1984-5-7 768 Humboldt Near Coast Guard Station, N Spit of Humboldt Bay 3 Comment
  SBBG115409  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt N of Orick, Hwy 101 reroute, near Redwood Park Comment
  UC906703  Rubus parviflorus Harold E. Parks and Joseph P. Tracy 1942-5-16 11562 Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  SEINET5265376  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  UCSC000369  Rubus parviflorus Unknown 1975-5-30 52 Humboldt Eureka; T.P.L. Co., Freshwater Comment
  CHSC24872  Rubus spectabilis P. Goldman 1976-3-28 7 Humboldt Ca. 1 mi into Fern Canyon, Fern Canyon State Park, ca. 100 mi s of Cresent City. 0 Comment
  CHSC61999  Rubus spectabilis J. R. Biddison 1993-4-6 15 Humboldt Elk Prairie campground, Prairie Creek Redwoods State Park. Next to creek. 30 Comment
  HSC19688  Rubus spectabilis S. J. Hawks 1965-4-3 16 Humboldt Luffenholtz Beach Comment
  SEINET4093693  Rubus spectabilis O. M. Clark 1932-1 5325 Humboldt South Eureka. Comment
  UC1199046  Rubus spectabilis Joseph P. Tracy 1931-4-12 9333 Humboldt near Blue Lake (Mad River (at Essex)); Northern Coast Region, Mad River 15 Comment
  SEINET11908695  Rubus spectabilis Unknown 1977-1 7 Humboldt S end of Patricks Point State Park, ca 0.2 mi W of Hwy 101 & 5 mi N of Trinidad 61 Comment
  CAS-BOT-BC158791  Rubus ursinus Doris K. Kildale 1927-5-13 3139 Humboldt Redwood Creek at Berry's 289 Comment
  HSC34808  Rubus ursinus David Peters 1975-4-9 5 Humboldt .1 mi. E of Kirkpatrick Quarry Rd. on Jacoby Cr. Rd. Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  UCD17838  Rubus ursinus H. Olmo 8-10 May 1962 62- 35 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. 670 Comment
  UCD17930  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53- 59 A Humboldt California. Humboldt County: Jordan Street in Rohnerville. In city limits, 0.5 blocks west of the north side of the Richfield filling station. Comment
  HSC38935  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt 3 mi. W of Arcata. Comment
  HSC51775  Rumex acetosella Overton, Butler 1979-7-24 9644 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC421932  Rumex acetosella Kenneth Clark 1980-3-1 510 Humboldt Shelter Cove. Dead Man's Gulch. 51 Comment
  HSC95647  Rumex acetosella Andrea Pickart 2002-4-3 36 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  UC672928  Rumex conglomeratus Joseph P. Tracy 1935-7-17 14097 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  RSA53799  Rumex conglomeratus H. M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek Klamath River Canyon. Comment
  HSC99552  Rumex obtusifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 217 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC38433  Rumex pulcher J. P. Smith 1976-10-30 8998 Humboldt Mad River, E of Essex Lane exit. Comment
  HSC35617  Rupertia physodes Thomas W. Nelson, B. Reinhardt 1975-7-30 2112 Humboldt The road out Whiting Ridge at Whiting Spring Comment
  UC1198323  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1911-7-9 3467 Humboldt near mouth Willow Creek (a tributary of Trinity R.); Northern Coast Ranges, Willow Creek (a tributary of Trinity 152 Comment
  SEINET10937633  Salicornia virginica Mary Susan Taylor 1982-10-24 Taylor 5176 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  SD37466  Salix Edith A. Purer 1932-7-27 4152 Humboldt Samoa, sand dunes Comment
  UC1196669  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14266 Humboldt meadows at Water Dog Lake; Trinity Summit 1828 Comment
  CAS-BOT-BC103817  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC103820  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01237 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC103822  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC481301  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 969 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC104096  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104105  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC106860  Salix hookeriana W. J. Ferlatte 1967-6-13 1118 Humboldt Clam Beach Lagoon 6 Comment
  CAS-BOT-BC107728  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107743  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Bank of Eel River - Fortuna 15 Comment
  CAS-BOT-BC107750  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa, Humboldt Bay Comment
  HSC19963  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-15 1103 Humboldt Near mouth of the Little River Comment
  HSC40861  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC40879  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  JEPS38444  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Strawberry Creek Northern Coast Ranges, Dows Prairie Sand Dunes (at mouth) 6 Comment
  LA208761  Salix hookeriana Harold E. Parks; 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  POM160840  Salix hookeriana Joseph P. Tracy 1925-10-11 7280 Humboldt Near Loren Frost place, on Kneeland Road. Near Kneeland Prairie. 610 Comment
  POM184871  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-10 1103 -a Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  RSA475258  Salix hookeriana Lyman D. Benson 1928-7-5 370 Humboldt Garberville. Seward N Coast mtn range. S Fork Eel River. 244 Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC1173622  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna Eel River (banks of river) 15 Comment
  UC1196552  Salix hookeriana Joseph P. Tracy 1939-7-9 16328 Humboldt Snow Camp 1402 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1225924  Salix hookeriana Joseph P. Tracy 1947-8-31 17930 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC212999  Salix hookeriana Joseph P. Tracy 1920-2-29 5309 Humboldt Ryans Slough Northern Coast Ranges, around Humboldt Bay 15 Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC303031  Salix hookeriana Joseph P. Tracy 1926-3-14 7389 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC303035  Salix hookeriana Joseph P. Tracy 1926-11-21 7832 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  UC481278  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  UCD111038  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt 3 miles west of Arcata. Comment
  POM218953  Salix laevigata H. P. Bracelin 1931-5-1 271 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC519387  Salix laevigata Joseph P. Tracy 1933-6-9 12528 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  HSC38185  Salix lasiandra Thomas W. Nelson, James Nelson 1976-3-5 3284 Humboldt Beside Salmon Creek, W of old Hwy. 101 at Beatrice Comment
  CAS-BOT-BC128189  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC107614  Salix lasiolepis Harold E. Parks 1933-2-26 10912 Humboldt Miranda, south fork of Eel River 121 Comment
  CAS-BOT-BC107619  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Samoa Peninsula Comment
  HSC98048  Salix lasiolepis Cara Witte 2007-7-17 542 Humboldt White Oak Opening 1257 Comment
  JEPS14751  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  JEPS14779  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  LA208772  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  LA208774  Salix lasiolepis Harold E. Parks; 1931-5-14 963 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  LA208776  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt Van Duzen River, 2 mi. W of Bridgeville 228 Comment
  UC1196649  Salix lasiolepis Joseph P. Tracy 1933-11-29 13129 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC481337  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC481806  Salix lasiolepis H. P. Bracelin 1931-5-1 268 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC481809  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC490551  Salix lasiolepis Joseph P. Tracy 1932-3-6 9776 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC512041  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107287  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-3-19 10934 Humboldt along Van Duzen R. 228 Comment
  CAS-BOT-BC107408  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3145 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  POM219248  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1931-8-15 1078 Humboldt Blue Slide. Van Duzen River. 100 Comment
  POM362660  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  RSA5690  Salix lucida subsp. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC125628  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  HSC20059  Salix melanopsis H. E. Parks 1931-5-14 961 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  JEPS12938  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  LA208880  Salix melanopsis Harold E. Parks; 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville 300.0 Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SBBG57931  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6 km S of Alton Comment
  UC1196636  Salix melanopsis Joseph P. Tracy 1932-5-1 9845 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC481305  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481342  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC490555  Salix melanopsis C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 10073 Humboldt Redwood Creek at Berrys; North Coast Ranges, Redwood Creek 274 Comment
  UC519360  Salix melanopsis Joseph P. Tracy 1933-6-7 12512 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC519380  Salix melanopsis Joseph P. Tracy 1933-5-20 12261 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC55405  Salix melanopsis J. P. Tracy 1901-8-2 1242 Humboldt Van Duzen R. bar near Hydesville; Van Duzen R. 91 Comment
  UC726592  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt between Scotia and Pepperwood (Eel R.); Eel R. Comment
  SD977  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River, between Alton and Carlotta, in river gravel. 14 Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  UC212994  Salix purpurea Joseph P. Tracy 1920-2-29 5307 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay, Ryan's Slough 15 Comment
  CAS-BOT-BC129141  Salix scouleriana H. E. Parks 1933-1-24 1353 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CDA14419  Salix scouleriana P. Haggard 1996-3-18 s.n. Humboldt Eureka. 0 Comment
  UC1196699  Salix scouleriana Joseph P. Tracy 1919-9-14 5204 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC1196701  Salix scouleriana J. P. Tracy 1900-12-22 974 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC128957  Salix sitchensis W. R. Dudley 1899-6-21 s.n. Humboldt Bluff below Dyerville on Eel River Comment
  CAS-BOT-BC128999  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt Alton, on Van Duzen River 15 Comment
  HSC20099  Salix sitchensis H. E. Parks, S. T. Parks 1932-4-12 1111 Humboldt Blue Slide, Van Duzen River Comment
  RSA171961  Salix sitchensis Robert F. Thorne 1957-9-2 18989 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC212996  Salix sitchensis Joseph P. Tracy 1919-9-25 5300 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC490489  Salix sitchensis Joseph P. Tracy 1932-5-10 9955 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  HSC41315  Sambucus nigra subsp. caerulea Brad Klipfel 1974-9-2 539 Humboldt Horse Mtn. Comment
  CAS-BOT-BC235121  Sambucus racemosa var. racemosa Doris K. Kildale 1927-3-22 2938 Humboldt North Fork of Elk River Comment
  HSC59500  Sambucus racemosa var. racemosa M. A. Ericksen 1979-4-6 202 Humboldt 880 Central Ave. McKinleyville. Comment
  HSC37921  Sanicula arctopoides Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC1197112  Sanicula arctopoides J. P. Tracy 1899-4-9 303 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  HSC45369  Sanicula arctopoides R. York, Linda York 1978-4-1 101 Humboldt Growing on foredunes at end of Lighthouse Rd., 2 mi. SE of Petrolia Comment
  HSC100692  Sanicula bipinnatifida Carl C. Marshall Apr 1886 184 Humboldt Hill at Scottsville. Comment
  HSC56221  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-8-2 12249 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  BLMAR197  Sanicula laciniata Donald Hazlett 1994-6-7 197 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC82107  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5248 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  RSA167239  Sanicula tracyi Joseph P. Tracy 1950-7-6 19022 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  HSC74271  Sanicula tuberosa M. A. Baker 1980-5-23 1378 Humboldt Near Buck Mtn. 1524 Comment
  HSC99063  Sanicula tuberosa C. Witte 2007-5-8 2 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC642318  Sanicula tuberosa Joseph P. Tracy 1930-7-17 9011 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  UC535768  Satureja douglasii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  JEPS62819  Satureja douglasii Lincoln Constance 1934-5-24 634 Humboldt forest bordering e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  UCSB28675  Saxifraga mertensiana Calhoun, R. 1973-3-26 Humboldt Along Avenue of the Giants, 1 mile from southern junction with US 101, 3 miles north of Garberville 45 Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  UCD65995  Schedonorus arundinaceus Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA366413  Schoenoplectus acutus var. acutus Joseph P. Tracy 1914-5-30 s.n. Humboldt North Coast, near Hydesville Comment
  HSC36077  Scirpus microcarpus Jack Watson 1962-5-2 Humboldt Wet soil along game pens of HSU campus Comment
  HSC15640  Scoliopus bigelovii E. W. Styskel 1963-3-9 6 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC66221  Scoliopus bigelovii N. J. Miller 1977-3-5 1 Humboldt Camp Bauer Park, 100 yds. E of baseball field, 0.25 mi. NE of Korbel 58 Comment
  SEINET3991343  Scoliopus bigelovii Unknown 1950-4-20 18611 Humboldt One mile west of Dinsmore's; along Van Duzen river, opposite Buck Mountain 762 Comment
  RSA425151  Scrophularia californica Christopher Davidson 1973-5-29 2202 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  HSC66822  Sedum laxum subsp. flavidum M. A. Baker 1980-7-11 2769 Humboldt Near Red Mtn. 1341 Comment
  JEPS26915  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  UC169908  Sedum laxum subsp. heckneri Harley P. Chandler June, 1901 1439 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  HSC57880  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-31 11418 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1198842  Sedum radiatum Joseph P. Tracy 1912-7-31 3914 Humboldt Buck Mountain Northern Coast Ranges, Buck Mountain near the summit (near the summit) 1219 Comment
  JEPS48059  Sedum spathulifolium Lincoln Constance 1934-6-1 767 Humboldt Bull Cr. Road between Dyerville Bridge and Bull Cr. flat grove (mouth Bull Cr.) (Mouth Bull Cr, South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  CDA32353  Selaginella kraussiana G. F. Hrusa, R. Bencie, L. Bencie, C. & E. Dogwin 2010-12-29 18277 Humboldt North Coast; Forest E of Humboldt St. Univ., above Fern Lake. 47 Comment
  LA209676  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  UC519319  Selaginella oregana Joseph P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake. Rock ledges on river bank 15 Comment
  UC1199241  Senecio integerrimus var. major Joseph P. Tracy 1938-5-1 15728 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223048  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt Kneeland Prairie 762 Comment
  UC34194  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  CDA7634  Senecio jacobaea E. C. Whitney 1966-8-25 Humboldt South side of mouth of Canyon Creek, Simpson Lumber Company property, ca. 6 miles north of Korbel. 0 Comment
  UCD135606  Senecio minimus R. Tofsrud Date Unknown s.n. Humboldt Between Capetown and Ferndale. Comment
  CAS-BOT-BC364224  Senecio sylvaticus Alice Eastwood May 15 s.n. Humboldt Samoa Comment
  UCD135752  Senecio sylvaticus W. L. Colwell 1955-10-1 30 Humboldt Brush Mountain. 1066 Comment
  HSC102100  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1003 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  MACF017376  Sequoia sempervirens Trudy R. Ericson 1974-8-6 202 Humboldt Off U. S. 101, exit to Patrick's Point State Beach Park, near Seaward Drive Comment
  MACF022873  Sequoia sempervirens Trudy R. Ericson 1978-9-3 964 Humboldt 3 mi. east of Carlotta on St. 36 60 Comment
  UC1184974  Sequoia sempervirens Huron H. Smith 1911-6-16 3824 Humboldt Comment
  UC195423  Sequoia sempervirens Joseph P. Tracy 1914-12-20 4638 Humboldt Eureka 0 Comment
  UC667964  Sequoia sempervirens Joseph P. Tracy 1937-2-21 15231 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  SEINET10719715  Sequoia sempervirens Ronald J. Mastrogiuseppe Mastrogiuseppe s.n. Humboldt On the flood plain of the Founders' Grove. Comment
  CAS-BOT-BC364785  Sericocarpus oregonensis subsp. oregonensis Henry M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Van Fleet place, Orleans region Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  UC168950  Sherardia arvensis Joseph P. Tracy 1899-5-27 214 Humboldt Eureka Northern Coast Region (on Russ Claim) 0 Comment
  HSC100571  Sidalcea diploscypha Carl C. Marshall Jun 1887 467 Humboldt S Humboldt. Comment
  UCR45396  Sidalcea malviflora D. K. Imper 1985-6-18 s.n. Humboldt Six Rivers National Forest, just south of junction of 10N01 and 10N03, south of Orleans. 854 Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  JEPS67278  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Field's Landing (at Still Ranch); s of Field's Landing, Still Ranch 6 Comment
  UC668133  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-12 15653 Humboldt Snow Camp 1402 Comment
  CDA24094  Silene californica R. Spadoni 1992-6-15 Humboldt Along mad River east of Arcata, near Blue Lake, Redwood Valley. 0 Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  HSC58156  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-8-2 12208 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC76246  Silene campanulata subsp. glandulosa Denis Kearns 1981-6-24 1 Humboldt Near Cedar Camp 1219 Comment
  UC302999  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC104081  Silene campanulata subsp. glandulosa S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, below Rd. 1S11 1579 Comment
  UC1198363  Silene gallica Joseph P. Tracy 1931-5-3 9352 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC45386  Silene gallica R. York 1978-5-20 170 Humboldt Along Bluff Creek Trail 610 Comment
  UC668083  Silene grayi Joseph P. Tracy 1932-7-18 10705 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  HSC4175  Silene laciniata subsp. californica Lincoln Constance 1934-6-1 770 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  HSC45588  Sisyrinchium bellum Diane L. Reed 1978-5-27 142 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  JEPS64287  Sisyrinchium bellum Lincoln Constance 1934-6-4 815 Humboldt Look Prairie and Bull Creek Road to Dyerville South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  SEINET6744567 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  UC1103493  Smilacina stellata Joseph P. Tracy 1938-7-7 16039 Humboldt Grouse Mountain 1524 Comment
  HSC93540  Solanum americanum Spadoni 1997-12-2 Humboldt 1335 J St., Eureka 15 Comment
  RSA246652  Solanum laciniatum Robert F. Thorne, Percy C. Everett 1965-8-5 35160 Humboldt Samoa Dunes. Edge of Humboldt Bay. 3 Comment
  HSC41004  Solanum parishii J. O. Sawyer 1975-10-17 2715 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  SEINET12274864  Solanum umbelliferum S. M. Tracy 1950-1 18851 Humboldt Briceland Comment
  POM247118  Solidago californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA20813  Solidago canadensis var. gilvocanescens C. B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6.3 miles south of Ferndale. 305 Comment
  CAS-BOT-BC365441  Solidago elongata Carl B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  HSC102577  Solidago elongata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1564 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC57904  Solidago elongata Gilbert Muth 1979-7-31 11501 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC57941  Solidago elongata G. L. Clifton, Griswold 1979-7-31 11610 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC40262  Solidago spathulata Linda M. Barker 1976-8-2 1670 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  RSA167399  Solidago spathulata Joseph P. Tracy 1948-9-26 18226 Humboldt Fickle Hill, six miles southeast of Arcata. 610 Comment
  RSA21022  Solidago spathulata C. B. Wolf 1937-9-12 9332 Humboldt Clam Beach. 8 Comment
  SEINET191265 Image available Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt Samoa. Comment
  UCSB30614  Solidago velutina subsp. californica Edwards, David 1974-8-1 Humboldt About 50 ft. N. of junction of the Mad River and Puter Creek, on the east bank of Mad River, ca. 2 mi. SW of Korbel Comment
  RSA474068  Soliva sessilis J. P. Smith 1977-4-23 9019 Humboldt 2.5 miles S of Shelter Cove Road. S Fork of Bear Creek at Wailaki Campground. 561 Comment
  SEINET200989  Sonchus asper J. P. Tracy 1903-8-2 1925 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC582437  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt 6 mi se Arcata (Fickle Hill); Fickle Hill 609 Comment
  HSC26377  Sonchus oleraceus T. O. Osborne 1970-9-16 38 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC176175  Sparganium erectum subsp. stoloniferum Joseph P. Tracy 1912-10-20 3987 Humboldt Loleta Northern Coast Ranges, Eel Valley (lower Eel Valley) 15 Comment
  CHSC69850  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay Arcata; foot of I Street. Comment
  POM319543  Spartina densiflora Patricia Wilder 1968-8-21 4415 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CHSC85475  Spartium junceum Spadoni 2002-6-26 P 070828 Humboldt Along country road in the vicinity of Garberville. Comment
  CAS-BOT-BC389919  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. Alt. above sea level Comment
  HSC89986  Spergularia canadensis var. occidentalis Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC82961  Spergularia macrotheca A. L. Eicher 1985-6-19 Humboldt SW side of mouth of Mad River Slough, Humboldt Bay. 0 Comment
  HSC89910  Spergularia macrotheca Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. End of Fernstrom-Root trail Comment
  CDA3442  Spergularia rubra T. C. Fuller 1958-6-17 599 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  CAS-BOT-BC149617  Spiraea douglasii Milo S. Baker 1927-8-21 2484 b Humboldt [Spagnum] Sphagnum Bog near Bald Mt. 914 Comment
  HSC41270  Spiraea splendens var. splendens Brad Klipfel 1974-6-25 413 Humboldt Horse Mtn. Comment
  HSC40375  Spiranthes romanzoffiana Linda M. Barker 1976-9-3 1695 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA286353  Spiranthes romanzoffiana Robert F. Thorne 1974-7-29 45085 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC1222862  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18761 Humboldt near Petrolia (w slope of hill, leading from the coast toward town, hills between town and Ocean); Domingo Hill Comment
  UCLA70874  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-9 15874 Humboldt 2 mi s Blocksburg 304 Comment
  UCLA70908  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt 30 mi e Weaverville (Farm Lodge) Comment
  UCLA71151  Stachys ajugoides var. rigida Huron H. Smith 1911-6-5 3782 Humboldt Camp 20 Vances Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  UCR122361  Stachys mexicana George K. Helmkamp, E. A. Helmkamp 2001-7-8 6983 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
  HSC63637  Stachys rigida J. P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC34274  Stachys rigida var. rigida K. Irwin 1975-8-13 Humboldt Grogans Hole area Comment
  HSC58159  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-8-2 12219 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC59046  Stellaria media Thomas Wood 1979-4-1 92 Humboldt 3/4 mi. W of Upper Bay Rd. X Janes Rd. on Lamphere-Upper Bay Rd. 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
  UC1198343  Stellaria nitens Joseph P. Tracy 1908-6 2737 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1197796  Stenanthium occidentale Joseph P. Tracy 1947-8-24 17901 Humboldt Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC87615  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt South of airport, about 5 miles east of Kneeland. Comment
  RSA43850  Streptanthus tortuosus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  UC161577  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy July 1908 2764 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap; Northern Coast Ranges 914 Comment
  SEINET4173984 Image available Streptopus amplexifolius Joseph P. Tracy 1923-6-24 6366 Humboldt Bald Mountain, near High Prairie 1067 Comment
  RSA520556  Streptopus amplexifolius Michael A. Hanson 1990-5-21 72 Humboldt On Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11.3 km) south of Klamath Comment
  UC1585428  Symphoricarpos albus var. laevigatus R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 26 Humboldt sw of Hoopa (on Bair Rd, at Pine Ridge Summit); Pine Ridge Summit 970 Comment
  HSC58128  Symphoricarpos mollis Gilbert Muth 1979-8-1 12121 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS13645  Symphoricarpos mollis Joseph P. Tracy 1932-7-11 10415 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC99165  Symphyotrichum chilense Carl B. Wolf 1927-8-29 1201 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  CHSC10151  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata. Along the sides of the Lanphere County Road by Mad River Slough. Comment
  RSA46713  Synthyris reniformis Doris K. Kildale 1926-3-20 1538 Humboldt Big Lagoon. Comment
  JEPS26266  Synthyris reniformis Joseph P. Tracy 1935-2-9 13711 Humboldt w side of Dow's Prairie 60 Comment
  BLMAR752  Tanacetum bipinnatum Kate McGrath 2015-6-28 752 Humboldt Samoa Peninsula, Throughout Samoa Dunes Rec Area and OHV area 1 Comment
  CAS-BOT-BC376723  Tanacetum bipinnatum M. Louise Hutchinson 1913-1-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC376736  Tanacetum bipinnatum Ira L. Wiggins 1940-7-10 9484 Humboldt Big Lagoon Comment
  SEINET3816603  Tanacetum bipinnatum J. P. Tracy 1901-8-7 1269 Humboldt Sand hills of ocean beach at Samoa, opp eureka Comment
  SEINET3816604  Tanacetum bipinnatum Bassett Maguire 1934-6-9 15318 Humboldt On sand dunes, clam beach, 15 miles from North Eureka Comment
  CAS-BOT-BC376726  Tanacetum bipinnatum D. E. Boufford 1973-7-26 11050 Humboldt Along the Pacific Ocean at the town of Clam Beach, north of the city of Eureka. Growing near sea level Comment
  HSC6243  Tanacetum bipinnatum H. E. Parks Sep 1941 24216 Humboldt Little River Comment
  RSA93878  Tanacetum camphoratum F. W. Peirson 1923-7-11 3917 Humboldt 18 miles N. of Eureka Comment
  POM289716  Tanacetum douglasii Lyman Benson 1928-7-10 452 Humboldt Clam Beach, Trinidad. 15 Comment
  UCSB25217  Tanacetum douglasii J. R. Haller 1967-6-17 2181 Humboldt collected 10.0 mi N, at Clam Beach County Park, along U S Highway 101 Arcata - Clam Beach County Park, U S Highway 101, and Arcata Comment
  UC1223146  Taraxacum officinale Joseph P. Tracy 1948-5-15 17973 Humboldt Willow Creek Trinity River Comment
  HSC1597  Taxus brevifolia Francis Winter 1960-5-7 Humboldt Pine Ridge Summit, Hoopa Indian Reservation 671 Comment
  POM319590  Taxus brevifolia Patricia Wilder 1968-8-22 4428 Humboldt Bull Creek Flat, Humboldt Redwood State Park, north of Weott and west of U. S. 101. Coast Mountain range, south fork of Eel River. 61 Comment
  RSA160832  Taxus brevifolia Joseph P. Tracy 1924-9-7 6862 Humboldt Grizzly Creek on Van Duzen River 91 Comment
  CAS-BOT-BC85212  Taxus brevifolia G. A. Coleman 1901-7-28 s.n. Humboldt Near Baise Creek Comment
  HSC97605  Tellima grandiflora Cara Witte 2007-6-7 221 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  HSC63225  Tellima grandiflora M. A. Baker 1979-5-6 483 Humboldt 2 km. S of Weitchpec Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. Comment
  HSC35757  Thermopsis gracilis Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt French Camp, Bald Hills. Comment
  NY185794  Thlaspi californicum V. Rattan 06 1882 s.n. 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
  HSC12833  Thuja plicata Thomas W. Nelson, Wilbur Peterson 1970-12-2 301 Humboldt HSC Campus SE side of field house Comment
  UCD134111  Thuja plicata Jo Ann Olson; Gary R. Robbins 1969-4-27 36 Humboldt On Mattole Road, ca. 1 mile south of Ferndale. 152 Comment
  UCR27987  Thuja plicata A. C. Sanders 1981-8-6 2309 Humboldt Russ Park, just south of Ferndale. 61 Comment
  UC1409074  Tiarella trifoliata var. unifoliata Robert F. Thorne and P. Everett 1965-8-5 35140 Humboldt below summit Mt. Chamisal Mt. Chamisal; , below summit 533 Comment
  UC303174  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1923-6-20 6314 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC73841  Tonella tenella Gail Newton 1980-6-7 134 Humboldt Near Brush Mtn. 1128 Comment
  RSA80427  Tonella tenella Margaret Stason 1938-4-14 12410 Humboldt Few miles east of Arcata on Weaverville Road. Comment
  POM256868  Torilis arvensis Archie Cathey 1938-7-30 s.n. Humboldt At Cathey Ranch, Miranda 152 Comment
  HSC58401  Torreyochloa pallida var. pauciflora Griswold, Butler 1979-7-11 7032 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC562555  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC28131  Trientalis latifolia J. D. Ackerman 1973-5-6 44 Humboldt 3 mi. N of Weott Comment
  HSC41277  Trientalis latifolia Brad Klipfel 1974-6-25 433 Humboldt Horse Mtn.; NW side of towers Comment
  HSC73378  Trientalis latifolia Doug Renwick 1981-4-24 11 Humboldt Jolly Giant Creek behind HSU Comment
  UC1223365  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1950-6-15 18807 Humboldt 7 mi n Harris (Jenk's Ranch) Comment
  UC1223393  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1948-5-31 17989 Humboldt near Harris (West side of top of Spruce Grove Ridge) 762 Comment
  UC1103434  Trifolium barbigerum Joseph P. Tracy 1912-5-12 3635 Humboldt Eureka Northern Coast Ranges Comment
  UC160938  Trifolium bifidum var. decipiens J. P. Tracy 1900-5-28 812 Humboldt immediate vicinity Eureka 0 Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  UC1541600  Trifolium ciliolatum Harold E. Parks May 1923 1497 Humboldt Eel River, McCanns Comment
  HSC102625  Trifolium cyathiferum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1611 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET12157175  Trifolium cyathiferum J. P. Tracy 1937-1 15519 Humboldt Devils Hole, head of Hors Linto Creek, Trinity Summit 1676 Comment
  UC165571  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning 1902-4-27 Humboldt near Hupa Comment
  HSC73960  Trifolium dichotomum Gail Newton 1980-6-7 128 Humboldt Near Brush Mtn. 1128 Comment
  JEPS65857  Trifolium dubium Joseph P. Tracy 1916-5-31 4699 Humboldt along Eel River (from South Fork to Scotia); Northern Coast Ranges 60 Comment
  CDA4294  Trifolium dubium G. D. Barbe, T. C. Fuller 1974-6-17 1837 Humboldt Sail Court, Shelter Cove. 0 Comment
  UC1602084  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-8 8728 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS79999  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC1223458  Trifolium fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt s Cape Ridge (near ocean); Cape Mendocino Comment
  RSA168897  Trifolium fucatum var. fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  UC495642  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt betw Miranda and Redway (South Fork of Eel River); North Coast Ranges 91 Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UC1130054  Trifolium hybridum H. S. Yates 1936-6-18 5724 Humboldt 2 mi s mouth of Littler River; Eureka quad 3 Comment
  HSC40872  Trifolium longipes Thomas W. Nelson 1976-7-9 3011 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  UC1223363  Trifolium longipes subsp. hansenii Joseph P. Tracy 1950-6-25 18897 Humboldt Buck Mountain. 3 miles south of Burr Valley, near the Sproston Place. 1158 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC99727  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 22 Humboldt Buck Flat on Titlow Hill Rd. 1512 Comment
  UC1223360  Trifolium macraei Joseph P. Tracy 1936-5-30 14841 Humboldt Samoa Sand Dunes Comment
  CHSC35554  Trifolium microcephalum James P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC71447  Trifolium microcephalum J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 5023 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC594252  Trifolium microdon S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3448 Humboldt nw slopes Buck Mtn Comment
  UC1197486  Trifolium obtusiflorum Joseph P. Tracy 1927-5-30 8092 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1223340  Trifolium obtusiflorum Joseph P. Tracy 1934-6-3 13205 Humboldt recently cleared land at Park's Place Trinidad Comment
  SBBG67249  Trifolium pratense R. Hartwell 1938-8-6 Humboldt near Eureka Comment
  HSC57902  Trifolium repens Gilbert Muth 1979-7-31 11496 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC1223325  Trifolium repens Joseph P. Tracy 1933-7-25 12861 Humboldt near Clear Lake; Grouse Mtn 1524 Comment
  HSC71616  Trifolium repens J. P. Smith 1973-5-26 6822 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89908  Trifolium repens Leonel Arguello 1989-7-7 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata, along the Saltmarsh trail by old cattle ramp. Comment
  UC1223320  Trifolium subterraneum Joseph P. Tracy 1951-6-21 19520 Humboldt in experimental garden of A. H. Nurphy on ranch of Everett Beck Hydesville Comment
  HSC45117  Trifolium variegatum R. Sutherland 1978-5-19 11 .19578 Humboldt 134 Comment
  JEPS4144  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC1197511  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10092 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197532  Trifolium willdenovii J. P. Tracy 1905-4-16 2162 Humboldt Ocean View Cemeter Eureka vicinity 0 Comment
  HSC2149  Trifolium wormskioldii J. P. Tracy 1926-7-25 7750 Humboldt Big Lagoon Comment
  RSA168905  Trifolium wormskioldii Joseph P. Tracy 1938-7-24 16087 Humboldt Corner of Pacific and A Streets. Eureka. Comment
  RSA181629  Trifolium wormskioldii Doris K. Niles 1950-6-1 8 Humboldt Island in Eel River, Niles field. Comment
  UC1103521  Triglochin maritima Joseph P. Tracy 1910-6-5 3146 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  UC667134  Trillium angustipetalum Joseph P. Tracy 1928-4-29 8418 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  SEINET3991344  Trillium chloropetalum Unknown 1950-4-20 18615 Humboldt Buck Mountain, lower foothills of its N. W. slope, 2 mi W of Dinsmore's 762 Comment
  UC667136  Trillium chloropetalum Joseph P. Tracy 1937-4-3 15242 Humboldt Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  HSC96774  Trillium kurabayashii M. Mesler 2006-5-25 604 Humboldt Big Hill Rd., 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  HSC96776  Trillium kurabayashii M. Mesler 2006-5-25 603 Humboldt Bald Hills FS, 18.8 mi. SE of Hwy. 101 915 Comment
  CSUSB389  Trillium ovatum Keith Thompson 1970-12-27 Humboldt Arcata, California. 45 Comment
  HSC45264  Trillium ovatum M. Alcasas 1978-4-7 1 Humboldt Freshwater Rd. 0.5 mi. N of Kneeland Post Office 732 Comment
  HSC59657  Trillium ovatum Marla J. Carollo 1979-4-10 3 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  SEINET10275389  Trillium ovatum Unknown 1963-2-24 52 Humboldt altitude ca 250 ft, floor of Redwood Forest; Nelson Grove near bank of Eel River, Humboldt State Park Comment
  SEINET12050374  Trillium ovatum F. H. Utech 1988-1 88 -276 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  UCD139909  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt south boundary of Jensen Grove, off U.S. Highway 101. Comment
  UCD139911  Trillium ovatum Anstruther Davidson 1930-1 s.n. Humboldt Kelseyville. Comment
  CAS-BOT-BC521313  Trillium rivale Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1524 Comment
  CAS-BOT-BC521316  Trillium rivale L. B. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  JEPS11786  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie Bull Creek Region (and Bull Cr. road to Dyerville, South Fork Eel River); South Fork Eel River, , Look Prairie Comment
  UC169336  Triodanis perfoliata Joseph P. Tracy 1905-6-25 2197 Humboldt Eureka; Northern Coast Region, Eureka 0 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
  SACT002443  Trisetum canescens Herbert Copeland 1936-6-15 Humboldt At world's biggest tree in redwood forest near Dyerville Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  HSC13420  Trisetum cernuum H. E. Parks, S. T. Parks Jun 1952 7551 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC38429  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1056 Humboldt 1 mi. W of Lord Ellis Summit Comment
  HSC58671  Trisetum cernuum Gilbert Muth 1979-8-1 12147 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1225868  Triteleia hyacinthina Joseph P. Tracy 1942-6-15 17136 Humboldt near Redcrest resort (Englewood); Englewood 91 Comment
  RSA167432  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt Buck Mountain, high meadow on west side, 3 miles south of Burr Valley 1159 Comment
  HSC91592  Triteleia laxa E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  JEPS557  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt 5 mi e Carlotta (by old Strong's District School House) 45 Comment
  POM169620  Triteleia peduncularis Joseph P. Tracy 1903-6-12 1920 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC15046  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Ryan's Slough Hill Eureka vicinity 0 Comment
  CAS-BOT-BC85898  Tsuga heterophylla Doris K. Kildale 1928-3-27 4361 Humboldt Top of Liscom Hill 792 Comment
  UC162948  Tsuga heterophylla Joseph P. Tracy 1911-6-4 3233 Humboldt along Little River Northern Coast Region, Little River (5 mi from the coast) 121 Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  HSC69853  Typha latifolia R. Kalal 1980-7-20 91 Humboldt Along road to Arcata Marsh Project, foot of I St., Arcata. 2 Comment
  RSA167411  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. Below Orleans 8 miles. 122 Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  UC1197772  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  CAS-BOT-BC199305  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge Comment
  HSC79432  Vaccinium ovatum Kenneth Clark 1981-4-5 1301 Humboldt Above S fork Dead Man's Gulch 114 Comment
  HSC89511  Vaccinium ovatum M. Roantree 1985-4-25 6 Humboldt E side of Trinidad Head. Comment
  RSA22543  Vaccinium ovatum H. E. Parks, S. T. Parks, C. R. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  RSA46850  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge near Blacksburg. Comment
  UC1193355  Vaccinium ovatum P. Zinke 1950-9-21 165 Humboldt se slope Kerr Peak (Quad 29C2) 609 Comment
  UC1197766  Vaccinium ovatum Joseph P. Tracy 1924-5-4 6672 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  JEPS66688  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  OBI14439  Vaccinium parvifolium H. E. McMinn 1931-6-28 2543 B Humboldt Orick to Requa Comment
  UCR32119  Vaccinium parvifolium David J. Keil 1983-7-2 17329 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  UCSC000556  Vaccinium parvifolium C. R. Clar 1930-7-14 99 Humboldt Hoopa, Supply Creek, Hoopa Indian Reservation 762 Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  UC302103  Vancouveria hexandra Joseph P. Tracy 1926-5-22 7513 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC62904  Vancouveria hexandra J. M. DiTomaso 1979-4-22 905 Humboldt 14th St. in Redwood Park adjacent to HSU Comment
  HSC64196  Vancouveria planipetala J. O. Sawyer, M. A. Ericksen 1979-6-23 3372 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC99472  Vancouveria planipetala K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 126 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC30401  Vancouveria planipetala J. D. Ackerman, A. M. Montalvo 1974-7-17 377 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville Comment
  UC1173642  Veratrum californicum var. californicum Joseph P. Tracy 1934-6-21 13244 Humboldt 2 mi s Field's Landing (at Still Ranch) 6 Comment
  HSC23748  Verbena menthifolia Tim Baroni 1971-7-5 100 Humboldt Comment
  HSC64192  Veronica americana J. O. Sawyer, M. A. Ericksen 1979-6-23 3376 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA20851  Veronica americana Carl B. Wolf 1937-6-18 8891 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  RSA0049599  Veronica hederifolia var. triloba Dean Wm. Taylor 2013-5-8 21405 Humboldt Arcata, about the grounds of the Masonic Lodge, on Bayside road east of Highway 101 21 Comment
  UC1192005  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt at the southern outskirts of Eureka Comment
  RSA20855  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mile S of Fortuna. 15 Comment
  JEPS80004  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  UC1197478  Vicia americana var. americana Joseph P. Tracy 1939-4-18 16216 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  UC709402  Vicia americana var. americana Joseph P. Tracy 1939-4-29 16253 Humboldt Orleans 121 Comment
  HSC31755  Vicia americana var. americana Donald Spalinger 1974-5-19 73 Humboldt S of Barry Ridge Rd., 1.5 mi. SW of Kneeland School 762 Comment
  UC303185  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  HSC89497  Vicia gigantea P. A. Daly 1984-5-8 3 Humboldt Trinidad Head 61 Comment
  POM68420  Vicia gigantea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC38931  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  JEPS66196  Vicia tetrasperma Joseph P. Tracy 1916-5-31 4688 Humboldt Stitz Creek Northern Coast Ranges Eel River (along Eel River from South Fork to Scotia) 60 Comment
  HSC71614  Vicia tetrasperma J. P. Smith 1973-5-26 6832 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA12423  Viola adunca Carl B. Wolf 1934-7-2 5871 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  CAS-BOT-BC536494  Viola glabella Doris K. Kildale 1927-3-22 2939 Humboldt North fork of Elk River Comment
  SDSU11371  Viola glabella L. N. Harvey Humboldt September, 1930 Comment
  UC1103561  Viola glabella Joseph P. Tracy 1923-4-8 6178 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1762506  Viola glabella Milo S. Baker 1947-8-10 11900 Humboldt near end of forest road from Hoopa 1371 Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  RSA125655  Viola ocellata E. K. Balls 1957-5-26 22608 Humboldt 2.6 mi NE from Harris on road to Alder Point. 701 Comment
  UC1537666  Viola ocellata Gordon H. True Jr. 1936-5-11 460 Humboldt 12 mi w of Miranda (e slope of Elk Ridge); Elk Ridge 457 Comment
  UCSB27855  Viola palustris Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville along Old Briceland Rd., 0.5 mi. north of roadside 213 Comment
  BLMAR619  Viola praemorsa Jennifer Wheeler 2011-5-24 619 Humboldt Lacks Creek, Stormy saddle 975 Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  UCD111295  Viola sempervirens K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  SEINET10918233  Vitis californica Unknown 1988-7-25 Anonymous s.n Humboldt Hwy Am [P--], Chestnut & Drew Comment
  HSC104101  Vulpia bromoides Kyle Brown 2015-4-25 50 Humboldt Arcata, trail along the Mad River 8 Comment
  HSC9841  Vulpia bromoides J. W. Johnson 1962-5-9 1350 Humboldt Christenson Farm, Samoa Peninsula. Comment
  HSC9924  Vulpia myuros Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  UCD94899  Vulpia myuros A. H. Murphy 1951-5-15 35 Humboldt Foster Ranch, 3 miles west of Miranda. Comment
  HSC74568  Whipplea modesta M. A. Baker 1980-5-17 1274 Humboldt Near Le Perron Peak 1066 Comment
  SDSU19191  Whipplea modesta Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.75 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 978 Comment
  UC1198901  Whipplea modesta Joseph P. Tracy 1908-6 2728 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC100395  Woodwardia radicans Carl C. Marshall Jun 1885 14 Humboldt Near Jarnigan's and on R. Wood. Comment
  HSC40040  Wyethia angustifolia Thomas W. Nelson, Jane P. Nelson 1976-7-1 2891 Humboldt Ridge N of Bear Creek 1463 Comment
  JEPS13755  Wyethia longicaulis Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  UC604675  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  UCD137002  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  HSC8420  Zeltnera muehlenbergii Yarick 1960-8-5 Humboldt M&M, 7 mi. Krueger Creek 152 Comment
  CDA868  Zostera japonica Gordon Leppig 2002-7-8 1783 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.16 processing seconds