Search Results — 2000 specimen records retrieved (1338 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=HUMBOLDT; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

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.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77963  Abies concolor Henry M. Pollard 1944-9-1 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC55121  Abies concolor G. L. Clifton, Griswold 1979-8-1 11916 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC1229745  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest, Horse Trail Ridge (sw slope) 1828 Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025090  Abronia latifolia Carl B. Wolf 1937-6-18 8905 Humboldt Centerville Beach 3 Comment
  BLMAR389  Abronia umbellata subsp. breviflora Jennifer Anthony-Wheeler 2004-10-10 389 Humboldt Samoa/manilla dunes, Due west of water line tower number77 3 Comment
  RSA186842  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile NW of Fieldbrook Comment
  CAS-BOT-BC330543  Acer circinatum Joseph P. Tracy 1942-7-26 17294 Humboldt Valley of South Yager Creek 609 Comment
  CAS-BOT-BC330546  Acer circinatum Joseph P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake 30 Comment
  UC170174  Acer glabrum var. glabrum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5780 Humboldt Trinity Summit Comment
  UCD117014  Acer macrophyllum David G. Forbes 1966-4-4 6438 Humboldt 0.5 mile south of Weott on Avenue of the Giants. 30 Comment
  CDA23775  Acer negundo var. californicum Jeanette N. Griffin 2008-8-28 s.n. Humboldt Ferndale 0 Comment
  CAS-BOT-BC28588  Achillea millefolium David D. Keck 1938-8-5 4765 Humboldt Clam Beach Comment
  HSC68195  Achillea millefolium J. P. Smith 1971-10-6 4976 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC28578  Achillea millefolium J. Clausen 1949-6-23 2159 Humboldt Benbow, 2 miles S of Garberville. Comment
  UC963846  Achillea millefolium H. E. Parks and S. T. Parks 1943-8-1 24246 Humboldt along coastal hills Egg Point; North Coast Ranges, Trinidad 121 Comment
  UC1103143  Achnatherum lemmonii Joseph P. Tracy 1912-7-31 3942 Humboldt Buck Mountain, near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UC552773  Achnatherum lemmonii H. E. Parks and Joseph P. Tracy 1934-6-27 11053 Humboldt Grouse Mt. 1432 Comment
  UCD103756  Acmispon denticulatus R. Tofsrud 1951-1 s.n. Humboldt Location unknown. Comment
  HSC79425  Acmispon wrangelianus Kenneth Clark 1980-4-18 607 Humboldt Along access trail to Dead Man's Gulch. 114 Comment
  HSC97999  Aconitum columbianum Cara Witte 2007-7-9 452 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1554 Comment
  JEPS79802  Actaea rubra Joseph P. Tracy 1932-7-17 10690 Humboldt Devil's Hole Klamath Mts., Trinity Summit (head) 1828 Comment
  RSA46865  Actaea rubra subsp. arguta Doris K. Kildale 1927-7-10 3729 Humboldt Gans Prairie, Bald Mountain Comment
  SDSU19197  Adelinia grandis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3007 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  HSC58181  Adenocaulon bicolor G. L. Clifton, Griswold 1979-8-2 12269 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SBBG7504  Adenocaulon bicolor H. and M. Dearing 1939-6-20 3687 Humboldt W of Willow Crk Comment
  UC1102641  Adiantum X tracyi J. Neeman 1948-1 Humboldt near Garberville Comment
  HSC39158  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 - 1250 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC54522  Adiantum aleuticum Overton, Butler 1979-7-23 9453 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  JEPS35153  Adiantum aleuticum W. L. Jepson 1921-9-10 9461 Humboldt Garberville Comment
  POM182456  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Hook Stream banks 122 Comment
  CAS-BOT-BC202608  Aesculus californica Joseph P. Tracy 1941-6-15 16914 Humboldt Near Honeydew bridge. Mattole Valley 152 Comment
  CAS-BOT-BC202610  Aesculus californica L. R. Abrams 1916-7-10 5965 Humboldt Between Harris and Alder Pt. Comment
  UC1222303  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt w side mouth of South Fork (near the South Fork); Trinity River Valley 182 Comment
  UC709442  Aesculus californica Joseph P. Tracy 1941-6-15 16014 Humboldt Mattole Valley Northern Coast Ranges (hillside near Honeydew bridge) 152 Comment
  CAS-BOT-BC30380  Ageratina occidentalis Doris K. Kildale 1926-8-29 2592 Humboldt Van Duzen River, near Strong's Station Comment
  JEPS18700  Ageratina occidentalis Lincoln Constance 1934-6-27 935 Humboldt 0.5 mi nw South Fork P.O. and R.R. Sta. (s side of Eel River, near its junction with the S. Fork at end of railroad bridge); South Fork of Eel River, Bull Creek Region Comment
  HSC44098  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-8-6 3696 Humboldt N of Alder Springs 1585 Comment
  UC582750  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-6-21 8768 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC582754  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-7-6 8842 Humboldt Kneeland Prairie Kneeland Prairie 762 Comment
  CAS-BOT-BC29626  Agoseris grandiflora var. grandiflora LeRoy Abrams 1922-6-25 8237 Humboldt 2 mi S of Fortuna Comment
  RSA167302  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt Grouse Mountain: Open glade where road crosses sides of the Friday Ridge, about 1 mile north of Friday's Camp Comment
  UC1199475  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7021 D Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  UC1199478  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 E Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1199485  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1932-6-26 10272 Humboldt (ne of Bridgeville) Fort Baker Ranch; Bridgeville 762 Comment
  UC249842  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  UC34646  Agoseris retrorsa Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC1222764  Agoseris retrorsa Joseph P. Tracy 1951-7-26 19591 Humboldt at extreme head of, gravelly spot, n side of Board Camp Mountain Redwood Creek; Board Camp Mountain 1541 Comment
  SEINET3134343  Agrostis J. B. Davy, W. C. Blasdale 1899-6-13 5521 Humboldt Near Pepperwood Comment
  CAS-BOT-BC127522  Agrostis capillaris L. R. Abrams 1916-7-18 6139 Humboldt At Trinidad. Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  CAS-BOT-BC127325  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  RSA10026  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Three Cabins; Chaparral Mountain Comment
  RSA10027  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Corral Prairie 1524 Comment
  UC1103388  Agrostis exarata J. P. Tracy 1901-6-23 1180 Humboldt immediate vicinity of Eureka 0 Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC526895  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt along river near Blue Lake; Mad River 15 Comment
  UCD52382  Agrostis exarata H. E. and S. T. Parks Jun and Jul 1952 7553 Humboldt Spruce Cove, Trinidad. 60 Comment
  UCD52437  Agrostis exarata P. B. Kennedy 1923-8-5 s.n. Humboldt west forst of Eel River, between Phillipsville and Garberville. Comment
  CAS-BOT-BC139495  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  CAS-BOT-BC139502  Agrostis hallii L. R. Abrams 1916-7-18 6128 Humboldt Arcata to Trinidad. Comment
  HSC37235  Agrostis hallii Lon Hall 1975-6-19 400 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  UC187117  Agrostis hallii Joseph P. Tracy 1908-6 2882 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  UC33755  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6175 Humboldt near Ferndale Comment
  SEINET200941  Agrostis longiligula Joseph P. Tracy 1924-1 6729 Humboldt Big Lagoon 6 Comment
  RSA10028  Agrostis microphylla Joseph P. Tracy 1932-6-14 10145 Humboldt Mountainside west of mouth of South Fork of Trinity River 610 Comment
  UC180490  Agrostis microphylla Joseph P. Tracy 1914-5-14 4471 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1103396  Agrostis oregonensis Joseph P. Tracy 1934-8-29 13637 Humboldt openings in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC138635  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Region about Humboldt Bay. Mouth of Elk River. 6 Comment
  CHSC36406  Agrostis stolonifera Donald M. Burk 1981-7-25 54 Humboldt At junction of Rd. 5N10 and Rd. 5N10C. 1249 Comment
  UC1100232  Agrostis stolonifera Malcolm A. Nobs and S. Galen Smith 1949-8-3 1168 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  CAS-BOT-BC138573  Agrostis variabilis Joseph P. Tracy 1930-7-16 8948 Humboldt Northern Coast Ranges. South Fork Mountain. Along summit near Blake lookout. 1737 Comment
  HSC70764  Aira caryophyllea R. York 1980-5-17 518 Humboldt Near Le Perron Peak 792 Comment
  HSC70968  Aira caryophyllea R. York 1980-5-17 541 Humboldt Near Le Perron Peak 1066 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
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  SEINET195007  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt Humboldt Camp 10 miles south of Dyerville Comment
  UC50685  Aira caryophyllea Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5474 Humboldt Elk Prairie Comment
  HSC24612  Aira caryophyllea C. E. Fellows 1965-5-19 88 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  CAS-BOT-BC138337  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  HSC8871  Aira praecox R. J. Vernimen 1963-4-27 35 Humboldt 0.5 mi. off Samoa Blvd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  HSC98007  Allium amplectens Cara Witte 2007-7-8 450 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET3883763  Allium amplectens D. W. McNeal, L. V. Mingrone 1967-6-12 382 Humboldt 8.0 mi. n.w. of Bridgeville on the county rd. to Kneeland, along the roadside.; 0 Comment
  UC2222699  Allium amplectens Joseph P. Tracy 1951-6-26 19596 Humboldt extreme head of Redwood Creek, n side Board Camp Mountain Board Camp Mountain, Redwood Creek 1541 Comment
  HSC99113  Allium bolanderi var. bolanderi Cara Witte 2007-6-7 232 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC73663  Allium campanulatum M. A. Baker 1980-7-15 2974 Humboldt Near Whiting Ridge. 1341 Comment
  HSC103255  Allium campanulatum John McRae 2014-6-3 Humboldt Six Rivers National Forest, Black Lassic Quad, Mt. Lassic , Lassics Botanical and Geological Area. 1768 Comment
  HSC98539  Allium falcifolium Cara Witte 2008-6-9 697 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  HSC23259  Allium triquetrum Jena Kattenhorn 1971-5-26 259 Humboldt Vacant lots of HSC campus Comment
  UC666889  Allium validum Joseph P. Tracy 1932-7-13 10515 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC666890  Allium validum Joseph P. Tracy 1930-7-16 8922 Humboldt meadow at McKay's Camp South Fork Mountain, McKay's Camp 1676 Comment
  JEPS59052  Allotropa virgata W. L. Jepson 1902-7-25 2117 Humboldt Trinity Summit Comment
  CAS-BOT-BC171312  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  HSC58170  Alnus incana subsp. tenuifolia G. L. Clifton, Griswold 1979-8-2 12243 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC76041  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12572 Humboldt Near Bret 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
  HSC65052  Alnus rubra J. P. Smith, Steve Selva 1970-6-30 4115 Humboldt Comment
  HSC58073  Alnus viridis subsp. sinuata G. L. Clifton, Griswold 1979-8-1 11965 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC90773  Alopecurus geniculatus Gail Newton 1982-5-31 3565 Humboldt Elk River Wildlife Area, Eureka Comment
  UC677600  Alopecurus geniculatus A. A. Beetle with Stebbins and Tracy 1942-6-2 3458 Humboldt s. of Eureka (Loleta Swamp); Loleta Swamp Comment
  CHSC56516  Ambrosia chamissonis L. P. Janeway 1983-9-24 704 Humboldt Sand-spit at Big Lagoon. 3 Comment
  HSC74335  Amelanchier alnifolia Gail Newton 1980-6-16 152 Humboldt Near Monks Camp 1097 Comment
  CDA1716  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  CHSC68792  Ammophila arenaria Vernon Oswald 1997-6-5 8535 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  RSA86667  Ammophila arenaria F. W. Peirson 1941-7-29 13112 Humboldt Little River Beach State Park. Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  HSC3519  Amsinckia intermedia J. W. Johnson 1962-4-21 1286 Humboldt Arcata; William Lanphere Farm about building Comment
  RSA0090986  Amsinckia intermedia H. E. Parks, J. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  UC175680 Image available Amsinckia spectabilis Joseph P. Tracy 1910-6-5 3152 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region; Ocean Beach at Humboldt Bay Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC89471  Anaphalis margaritacea P. A. Daly 1986-3-12 96 Humboldt Trinidad Head, along trail 61 Comment
  HSC98655  Anaphalis margaritacea Cara Witte 2007-7-26 596 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1438 Comment
  SEINET10904828  Anaphalis margaritacea Mary Susan Taylor 1977-8-2 Taylor 1427 Humboldt In mountains above and east of Eureka. Comment
  UCSC000820  Anaphalis margaritacea H. L. Person 1932-7-16 s.n. Humboldt Highway N. of Trinidad Trinidad - Rock Point Comment
  HSC55682  Anemone deltoidea Overton, Butler 1979-7-26 9935 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  JEPS55207  Anemone deltoidea W. L. Jepson 1934-5-7 16690 Humboldt Bull Creek Comment
  SBBG71821  Anemone deltoidea S. W. Hutchinson -Apr-1927 899 Humboldt Eureka 8 Comment
  JEPS86125  Anemone deltoidea Wayne Roderick 1966-5-7 Humboldt ca. 5 mi. e. Carlotta Comment
  UC160912  Anemone oregana Joseph P. Tracy 1909-4-4 2949 Humboldt s foot of Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  UC562611  Angelica arguta Joseph P. Tracy 1932-7-12 10443 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC183670  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC562549  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt Cape Mendocino, south of point of the Cape Cape Mendocino 3 Comment
  JEPS14104  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt s point of Cape Mendocino Cape Mendocino 3 Comment
  SEINET12117363  Angelica hendersonii J. P. Tracy 1950-1 19352 Humboldt Bear River Ridge 610 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  HSC8638  Angelica lucida D. E. Anderson 1966-10-29 4347 Humboldt Along E side of Humboldt Bay, 1 mi. S of Arcata. Comment
  UC1103414  Angelica lucida Joseph P. Tracy 1914-10-4 4632 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  HSC99069  Angelica tomentosa Cara Witte 2008-8-16 1027 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  CAS-BOT-BC271500  Anisocarpus madioides A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  SEINET202631 Image available Antennaria rosea Joseph Tracy 1935-7-24 14169 .5 Humboldt Trinity Summit near ranger station 1829 Comment
  UCD56135  Anthoxanthum aristatum W. R. Powell 1960-7-9 s.n. Humboldt 10 miles SE of Orick (direct line), Dolason Hill Prairie of the Bald Hills, along Orick-Weitchpec Road. 731 Comment
  HSC49816  Anthoxanthum occidentale R. York 1979-4-21 243 Humboldt Behind the town of Korbel Comment
  HSC8937  Anthoxanthum odoratum S. R. Johnson 1965-4-16 37 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UCD56238  Anthoxanthum odoratum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1208 Humboldt ca. 2 miles north of Eureka, Humboldt Bay. Comment
  HSC70343  Apocynum androsaemifolium M. A. Baker 1980-6-7 1850 Humboldt Near Ammon Creek 732 Comment
  BLMAR205  Apocynum androsaemifolium Jennifer Anthony-Wheeler 1996-7-9 205 Humboldt Pilot ridge., growing along rd side 1219 Comment
  HSC40992  Apocynum androsaemifolium Thomas W. Nelson, Jane P. Nelson 1977-9-3 3730 Humboldt N of pond above Alder Springs 1616 Comment
  UCSB1939  Aquilegia formosa Phillips, Priscilla 1958-6-7 Humboldt Just off Highway 101 on road to Big Lagoon Park Comment
  HSC99008  Aquilegia formosa var. formosa Cara Witte 2008-7-16 907 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC492254  Arabidopsis thaliana Joseph P. Tracy 1932-5-17 10091 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC58354  Arabis glabra Walter Overton, Butler 1979-8-2 12692 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  UC1198312  Arabis glabra Joseph P. Tracy 1947-7-5 17815 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC75478  Arabis sparsiflora var. subvillosa J. O. Sawyer 1980-7-18 3625 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC79191  Arabis subpinnatifida D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  CAS-BOT-BC167259  Aralia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UCSB26628  Aralia californica Keefe, Joseph 1967-7-8 Humboldt Junction Crannell Road and Little River Drive, north of Eureka 6 Comment
  CAS-BOT-BC128695  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Eel Rock Comment
  CAS-BOT-BC128699  Arbutus menziesii Doris K. Kildale 1927-4-17 3091 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  HSC7599  Arbutus menziesii Francis Winter 1960-4-24 Humboldt 4 mi. E of Blue Lake, Hwy. 299 305 Comment
  RSA23646  Arbutus menziesii C. B. Wolf 1939-7-8 9523 Humboldt Wilder Ridge, 6/10 mi. north of Ettersburg on road to Honeydew. 244 Comment
  HSC98835  Arceuthobium campylopodum Cara Witte 2008-7-25 926 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N36A. Near intersection with Forest Service Road 6N36B. 1355 Comment
  JEPS44157  Arctium minus W. L. Jepson 1902-8-3 2136 Humboldt low lands near, over Eel River Ferndale Ferry 1 Comment
  UC1121508  Arctostaphylos A. E. Wieslander 1931-5-17 192 Humboldt Orick-Orleans Rd Hoopa Quadrangle, Bald Hills Comment
  UC1225937  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC37842  Arctostaphylos columbiana Thomas W. Nelson, James Nelson 1976-3-11 2267 Humboldt Beside Hwy. 101 along N side of Table Bluff Comment
  JEPS19869  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6168 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  JEPS19870 Image available Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  UC397306  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  UC397307  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC585911  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  UCD50695  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt Bordering lower Look Prairie on E. side. 121 Comment
  SEINET11984909  Arctostaphylos columbiana Unknown 1965-1 543 A Humboldt top of Chimisal Mountain W of Wailaki Recreation Area, Bureau of Land Management Comment
  POM209635  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point. Comment
  RSA381132  Arctostaphylos columbiana var. columbiana Roman Gankin, W. Richard Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of US 101 on Bald Hills Road from Orick. French Camp Ridge. Comment
  POM209627  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 Comment
  RSA632800  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27771 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632809  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27763 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  CHSC63764  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 miles from US 101 en route to Hoopa. 929 Comment
  CAS-BOT-BC24371  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-3-10 2993 Humboldt Dobbyns Creek. Comment
  CAS-BOT-BC38832  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-5-7 3110 Humboldt Elk Ridge, near Eel Rock Comment
  JEPS38938  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 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
  UC1196874  Arctostaphylos nevadensis Joseph P. Tracy 1933-7-11 12670 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  HSC33154  Arctostaphylos patula Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1242 Humboldt Horse Mtn. Area, SW of the microwave tower 1220 Comment
  JEPS38935  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain 1432 Comment
  UC21843  Arctostaphylos patula J. Burtt Davy 1899-6-22 5784 Humboldt Trinity summit North Coast Ranges 2133 Comment
  UC585959  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain 1432 Comment
  UCD53433  Arctostaphylos patula A. E. Wieslander 1931-5-19 199 Humboldt Near Orleans. Comment
  RSA70889  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 12639 Humboldt North Coast: Samoa; Samoa Peninsula separating Humboldt Bay from the Pacific Ocean. . Comment
  UC1225931  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17498 Humboldt 1 block s Harris (at L St.); Eureka 45 Comment
  UCD52154  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1149 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  SEINET11987353  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4047 Humboldt Tilden Botanic Garden, Berkeley, orig. from Samoa Comment
  SEINET11987494  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4213 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa Comment
  HSC70634  Arctostaphylos viscida R. York 1980-5-18 605 Humboldt Near Black Mtn. 390 Comment
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  HSC26887  Armeria maritima subsp. californica Clifton Raymond Chesbrough 1973-6-19 99 Humboldt 0.5 mi. N of College Cove, along the coast. Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  RSA249359  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt 0.25 mi S of Lufenholtz County Beach off Scenic Dr between Trinidad and Moonstone Beach. Comment
  UC195424  Armeria maritima subsp. californica Joseph P. Tracy 1915-6-6 4649 Humboldt Bay Shore Northern Coast Region, Eureka 0 Comment
  RSA256573  Arnica cernua D. E. Anderson 1972-6-20 5739 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  UC34161  Arnica discoidea Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC8990  Arrhenatherum elatius J. P. Tracy 1927-9-25 8369 Humboldt Eureka, alongside railroad track 0 Comment
  CAS-BOT-BC84835  Artemisia douglasiana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET201064  Artemisia heterophylla Joseph P. Tracy 1910-9-25 Humboldt Region about Humboldt Bay. 0 Comment
  CAS-BOT-BC97245  Artemisia suksdorfii W. R. Dudley 1899-1 s.n. Humboldt Trinidad Head Comment
  JEPS45624  Aruncus dioicus var. pubescens W. L. Jepson 1902-7-11 2011 Humboldt South Fork Trinity River; Martin's Ranch Comment
  CAS-BOT-BC400529  Asarum caudatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC400534  Asarum caudatum Doris K. Kildale 1928-5-19 5183 Humboldt Chalk Mountain Comment
  UC6169  Asarum caudatum Harley P. Chandler May 1901 1267 Humboldt Redwood Belt 457 Comment
  CAS-BOT-BC400540  Asarum caudatum C. C. Harris; S. K. Harris 1936-6-14 652 Humboldt On Yager Road from Carlotta 457 Comment
  HSC59473  Asarum caudatum M. A. Ericksen 1979-5-9 260 Humboldt Along Jolly Giant Creek, HSU campus Comment
  SEINET8714984 Image available Asarum caudatum Unknown 1936-1 s.n. Humboldt Redwood forest on Yager Road from Carlotta, elevation about 1500 feet, Humboldt County, California. 457 Comment
  SFV18521  Asarum caudatum M. Oliver 2002-3-17 18 Humboldt Arcata Community Forest. 155 Comment
  UC1135997  Asarum caudatum R. Stahelin 1933-5-18 Humboldt Aroata City Park; Eureka Comment
  HSC63192  Asclepias speciosa M. A. Baker 1979-7-6 1006 Humboldt Along E bank of Klamath River Comment
  HSC100389  Aspidium rigidum var. argutum Carl C. Marshall Jun 1886 286 Humboldt Hoopa. Comment
  CDA42726  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Horse Mountain, Ammon Ridge Road 1 kilometer east of Titlow Hill Road. Comment
  SEINET200793 Image available Aspidotis densa J. P. Tracy 1942-6-23 17265 Humboldt Water Dog Lake; Trinity Summit 1830 Comment
  CDA18989  Aster brickellioides var. glabratus P. Haggard 2000-8-22 PDR 071957 Humboldt Along USFS Rd 1, southeast of Blue Lake. 0 Comment
  CAS-BOT-BC27579  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Foster & Pierce Ranch 762 Comment
  CDA26595  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. THP 1-00-461HUM. Comment
  NY5297  Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  HSC76042  Asyneuma prenanthoides Overton, Butler 1979-8-2 12569 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC69454  Athyrium filix-femina subsp. cyclosorum Henry M. Pollard 1947-8-28 s.n. Humboldt Perch Creek Canyon, w. Orleans. Comment
  RSA181910  Athyrium filix-femina subsp. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt Weott, hill above Comment
  HSC32331  Athysanus pusillus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5671 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  UC1198296  Athysanus pusillus Joseph P. Tracy 1937-5-16 15283 Humboldt nw of Harris 914 Comment
  HSC65451  Avena barbata J. P. Smith 1973-5-26 6807 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CAS-BOT-BC146162  Avena fatua Henry M. Pollard 1948-7-22 s.n. Humboldt Near Perch Creek, nera Orleans. Comment
  HSC9019  Avena fatua S. R. Johnson 1965-5-2 53 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC303081  Azolla filiculoides Joseph P. Tracy 1904-9-11 2143 Humboldt Fields Landing; Northern Coast Region 30 Comment
  RSA15553  Baccharis douglasii C. B. Wolf 1927-8-30 1239 Humboldt Minor's Ranch Union Matole, 6 miles south of Petrolia Comment
  UC1198288  Barbarea orthoceras Joseph P. Tracy 1913-4-13 4037 Humboldt on a branch of Ryans Slough about 3 miles East of Eureka 152 Comment
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  HSC62832  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  HSC31759  Berberis aquifolium Timothy B. Devine 1974-5-4 316 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC3345  Berberis aquifolium Paul Shields May 1955 Humboldt 10 mi. E Willow Creek Comment
  HSC56351  Berberis aquifolium Griswold, Butler 1979-7-10 6306 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55339  Bistorta bistortoides Griswold, Butler 1979-7-12 7192 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC66269  Blechnum spicant W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  UC902015  Boechera acutina Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  UC1222706  Boechera pauciflora Joseph P. Tracy 1950-8-8 19293 Humboldt head of Croghan Hole Trinity Summit, Croghan Hole Comment
  UC162612  Boechera retrofracta Harley P. Chandler Jun 1901 1511 Humboldt Klamath River North Coast Ranges 426 Comment
  UC562689  Boechera sparsiflora Joseph P. Tracy 1935-7-31 14391 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devils Backbone 1676 Comment
  RSA53786  Boisduvalia densiflora var. densiflora H. M. Pollard 1946-8-10 s.n. Humboldt Roadside south of Klamath River and east of Perch Creek, Orleans region. Comment
  UCR138660  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 2 Comment
  HSC70782  Boschniakia strobilacea Gail Newton 1980-7-24 1768 Humboldt Near Somes Mtn. 1615 Comment
  UC197910  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka 0 Comment
  CAS-BOT-BC420270  Boykinia occidentalis Carl B. Wolf 1927-8-22 798 Humboldt Big Lagoon Comment
  RSA32654  Boykinia occidentalis Doris K. Kildale 1925-7-28 1100 Humboldt [Unspecified] Comment
  UC857908  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt between Blue Lake and Willow Creek along bank Redwood Creek; bank of Redwood Creek btw Blue Lake and Willow Creek Comment
  UC1198285  Brassica nigra Joseph P. Tracy 1933-8-22 12974 Humboldt Northern Coast Ranges, Eureka. 0 Comment
  HSC6581  Brassica rapa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC5216  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork of Eel River, Richardson Grove Comment
  UC186059  Brickellia californica Joseph P. Tracy 1915-9-12 4674 Humboldt at the mouth of Laribee Creek (Eel River); Eel River 60 Comment
  UC535727  Brickellia californica Eleanor Armstrong 1934-8-20 1181 Humboldt Richardson Grove 121 Comment
  HSC9085  Briza maxima S. R. Johnson 1965-5-2 50 Humboldt Luffenholz Beach near parking area Comment
  RSA244953  Briza maxima Glen I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater lagoon. Comment
  UCD57276  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD57277  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  UCD57367  Briza maxima R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  BLMAR52  Briza maxima Brad Barr June, 1982 52 Humboldt King range, Etters cabin Comment
  HSC9102  Briza minor J. E. Lankila 1962-5-6 9 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  JEPS72933  Briza minor Lincoln Constance 1934-5-23 611 Humboldt se slope of mt. above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC1197749  Brodiaea elegans subsp. elegans Joseph P. Tracy 1946-7-13 17615 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  UC1197734  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-7-23 9137 Humboldt Cold Springs Horse Mountain 1432 Comment
  JEPS5499  Brodiaea stellaris W. I. Follett 1934-5-20 Humboldt 9.6 mi e Bridgeville (beside Fortuna-Red Bluff Hwy (Bridgeville is 23.5 mi w of the Humboldt-Trinity Co. line)) Comment
  SEINET200766  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1942-6-15 17125 Humboldt Englewood Natural prairie near Redcrest resort 91 Comment
  BLMAR14  Bromus carinatus Brad Barr June, 1982 14 Humboldt King range, above randall creek on ridgetop Comment
  UC1103274  Bromus carinatus var. carinatus J. P. Tracy 1900-7-4 883 Humboldt opposite Eureka (Ocean Beach at Somoa); Samoa, Ocean Beach Comment
  UC1103284  Bromus carinatus var. carinatus Joseph P. Tracy 1907-4-1 2556 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC1145158  Bromus carinatus var. carinatus Joseph P. Tracy 1936-8-2 15070 Humboldt French Camp Ridge 1066 Comment
  UC180489  Bromus carinatus var. carinatus Joseph P. Tracy 1914-5-14 4447 Humboldt Fort Seward 121 Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  HSC9214  Bromus carinatus var. marginatus R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch. 732 Comment
  BLMAR143  Bromus diandrus Donald Hazlett 1994-6-7 143 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  BLMAR41  Bromus diandrus Brad Barr 1982-6-21 41 Humboldt King range, hidden valley enclosure Comment
  HSC102947  Bromus hordeaceus J. P. Smith Jun 2009 12600 Humboldt Arcata. Lawn weed Comment
  UC1131029  Bromus laevipes H. S. Yates 1936-6-17 5686 Humboldt 1 mi w of Bridgeville 182 Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  HSC48989  Bromus vulgaris M. A. Baker 1979-5-25 760 Humboldt Comment
  HSC58808  Bromus vulgaris G. L. Clifton 1979-7-31 11871 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET200938 Image available Bromus vulgaris Joseph P. Tracy 1926-5-2 7427 Humboldt Trinity River Valley, near the South Fork. Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC161575  Cakile edentula J. P. Tracy 1901-8-7 1266 Humboldt Ocean Beach at Samoa, opposite Eureka Ocean Beach; Samoa, Ocean Beach Comment
  HSC75234  Cakile edentula D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  UC673073  Cakile maritima Joseph P. Tracy 1940-9-21 16724 Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 3 Comment
  UC902001  Cakile maritima Joseph P. Tracy 1948-6-10 18062 Humboldt Trinidad, beach w of town Trinidad 3 Comment
  RSA246935  Cakile maritima var. maritima R. F. Thorne, P. Everett 1965-8-9 35333 Humboldt Clam Beach County Park. 3 Comment
  CAS-BOT-BC185470  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  HSC97775  Calamagrostis foliosa C. Gillevan, C. Sander 2003-8-13 330 Humboldt Cliffs above Randal Creek, Cooksie Creek, and Gitchel Creek, in the King Range Area 9 Comment
  CAS-BOT-BC185240  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14355 Humboldt Salmon Summit. 1767 Comment
  HSC58646  Calamagrostis koelerioides G. L. Clifton, Griswold 1979-7-31 11666 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC185179  Calamagrostis nutkaensis Joseph P. Tracy 1925-7-5 7174 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  HSC78988  Calandrinia ciliata L. P. Janeway 1984-4-11 727 Humboldt N Spit of Humboldt Bay, NW of the boat ramp and N of the Coast Guard Station 5 Comment
  RSA53787  Callitriche heterophylla H. M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  HSC12695  Callitriche stagnalis Jana Kattenhorn 1970-10-28 156 Humboldt Mad River at mouth of Lindsey Creek, North Bank Rd. off Hwy. 299, along Mad River Comment
  CAS-BOT-BC80385  Calocedrus decurrens Doris K. Kildale 1927-12-1 4203 Humboldt Klamath River at Orleans Comment
  HSC76306  Calocedrus decurrens Teresa Prendusi 1981-7-9 224 Humboldt Near Cedar Camp 1256 Comment
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  UC1103462  Calochortus coeruleus Joseph P. Tracy 1930-7-17 9027 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC667131  Calochortus coeruleus Joseph P. Tracy 1932-7-12 10483 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC15345  Calochortus tolmiei Class 1937-4-29 Humboldt Miranda Comment
  HSC74349  Calochortus tolmiei Gail Newton 1980-6-28 748 Humboldt Near Mad River Butte. 1536 Comment
  JEPS17823  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Philipsville Phillipsville 121 Comment
  CAS-BOT-BC494361  Calochortus tolmiei Volney Rattan 1879-1-1 s.n. Humboldt Ferndale Comment
  CAS-BOT-BC175761  Caltha leptosepala Joseph P. Tracy 1930-7-16 8971 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  CAS-BOT-BC273318  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  UC175973  Calycadenia truncata Joseph P. Tracy 1908-7-1 2761 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 914 Comment
  RSA33968  Calycadenia truncata subsp. scabrella Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat. Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  UC1196477  Calypso bulbosa Joseph P. Tracy 1942-6-23 17241 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  UCD138885  Calypso bulbosa var. occidentalis J. C. Arthur 1934-3-20 s.n. Humboldt exact location unknown. Comment
  UCD138888  Calypso bulbosa var. occidentalis Julie Lortz 1966-5-14 66 -51 Humboldt 26 mile east of Willow Creek. 1219 Comment
  HSC55018  Calyptridium monospermum Overton, Butler 1979-7-31 11424 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC562487  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-8-30 13006 Humboldt Horse Mountain , Horse Mountain (Northern Coast Ranges) 1310 Comment
  UC562488  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-25 12883 Humboldt Grouse Mountain , Grouse Mountain (North Coast Ranges) 1524 Comment
  SEINET5058650  Calystegia sepium Unknown 2002-8-22 84 Humboldt Along Fischer Road just N of the Mad River. Comment
  SEINET10452961  Camissonia Mary Susan Taylor 1990-8-22 Taylor 6071 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  UC249615  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Joseph P. Tracy 1921-7-10 5852 Humboldt Big Lagoon Northern Coast Region 6 Comment
  SEINET10462895  Campanula prenanthoides Anderson 1962-7-17 Anderson 2273 Humboldt CAMP BAUER, CA. .25 MI E OF KORBEL ON N FORK MAD R. Comment
  SEINET10462970  Campanula prenanthoides Sandborg 1968-7-19 SANDBORG 54 Humboldt Bluff Creek near Notice Creek, forest floor near road below Notice Creek bridge. T10N R4E Comment
  RSA456189  Campanula scouleri M. S. Baker 1947-8-10 11901 Humboldt 15 mi n.e. of Stoopa Pass. near end of forest road in Fir Forest. 1372 Comment
  UC1585406  Campanula scouleri R. Raiche, K. Zadnik, and H. Forbes 1991-10-2 UCBG 28 Humboldt on Bair Rd. sw Hoopa; Pine Ridge Summit 970 Comment
  JEPS79826  Cardamine angulata Joseph P. Tracy 1928-4-29 8425 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC38209  Cardamine breweri Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  HSC33150  Cardamine californica Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1246 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  UC183542  Cardamine californica Joseph P. Tracy 1913-6-17 4180 Humboldt near summit Buck Mountain; Northern Coast Ranges, near summit Buck Mountain 1524 Comment
  CHSC110707  Cardamine californica var. californica Dean Wm. Taylor 2004-6-24 19143 Humboldt Spike Buck Mountain, north slope thereof. 1432 Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  RSA32661  Cardionema ramosissimum Doris K. Kildale 1925-7-2 904 Humboldt Table Bluff beach. Comment
  UC1225795  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River 6 Comment
  UC1222955  Carduus tenuiflorus Joseph P. Tracy 1950-6-8 18740 Humboldt on s side of Cape Ridge; Bear River, Capetown, Cape Ridge 30 Comment
  UC1115811  Carex aquatilis var. dives Joseph P. Tracy 1938-7-6 16024 Humboldt Big Lagoon 6 Comment
  UC1103083  Carex athrostachya Joseph P. Tracy 1933-7-25 12844 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC194819  Carex athrostachya Joseph P. Tracy 1911-7-7 3373 Humboldt 3 mi NW of junction of Willow Creek with Trinity River, and near Beebes Ranch Northern Coast Ranges 914 Comment
  HSC75485  Carex bolanderi J. O. Sawyer 1980-7-18 3604 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  BLMAR502  Carex bolanderi Jennifer Wheeler 2009-5-9 502 Humboldt Headwaters Forest Reserve, HRC U08 Road; spur close to Elk River Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  CAS-BOT-BC110192  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  UC562721  Carex concinnoides Joseph P. Tracy 1935-6-2 13922 Humboldt Big Lagoon 3 Comment
  UC562722  Carex concinnoides Joseph P. Tracy 1927-6-19 8190 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  UC1103599  Carex concinnoides Joseph P. Tracy 1927-6-19 8202 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 15 Comment
  UC1100648  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt marsh and bog land at the southern outskirts of Eureka Eureka Comment
  UC1103103  Carex deweyana subsp. leptopoda Joseph P. Tracy 1923-6-20 6309 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC1103110  Carex deweyana subsp. leptopoda Joseph P. Tracy 1932-7-17 10677 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  UC1116267  Carex deweyana subsp. leptopoda Joseph P. Tracy 1943-7-18 17442 Humboldt Big Lagoon 9 Comment
  UC197209  Carex echinata subsp. phyllomanica Joseph P. Tracy 1913-7-13 4364 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  CHSC85994  Carex exsiccata L. P. Janeway 2003-7-30 7941 Humboldt High North Coast Ranges. Small pond, on map but un-named, on the southwest side of Titlow Hill Road 1.1 km south of Cold Spring. 1426 Comment
  UC2015873  Carex feta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4347 Humboldt Coast Range, Burr Valley area. 'False Burr Valley' Comment
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  SEINET7559345 Image available Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt Grouse Mountain Quad, High North Coast Range, on northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  CAS-BOT-BC21280  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  POM160289  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek, Willow Creek Canyon. 457 Comment
  SEINET7561208 Image available Carex gynodynama M. J. Waterway, M. J. Lechowicz 1984-4-22 3057 Humboldt About 10 mi E of Arcata on Maple Creek Road, 6 mi W of jct with Butler Valley Road. Comment
  CAS-BOT-BC22315  Carex harfordii Alice Eastwood; John Thomas Howell 1937-6-23 4791 Humboldt Near Dinsmores. Comment
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  UC709392  Carex hassei Joseph P. Tracy 1941-5-11 16868 Humboldt Big Lagoon 152 Comment
  HSC98934  Carex laeviculmis Cara Witte 2007-7-11 480 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  RSA88658  Carex laeviculmis F. W. Peirson 1941-7-23 13091 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  CAS-BOT-BC31661  Carex lyngbyei Joseph Prince Tracy 1927-7-16 8428 Humboldt Near mouth of Elk River, Humboldt Bay. 3 Comment
  UC1982417  Carex mariposana Barbara Wilson, Richard Brainerd, Susan Erwin, Christine Jordan and Mike Friend 2003-6-20 10950 Humboldt Sundew Meadow on South Fork Mountain, on Shasta-Trinity National Forest road 3N32. Comment
  JEPS79958  Carex mariposana Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC539840  Carex mendocinensis H. N. Bolander; Kellogg, M. D.; & Co. 1967-6-1 s.n. Humboldt Red Mt. Comment
  HSC63874  Carex microptera M. A. Baker 1979-6-27 921 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  UC709391  Carex multicaulis Joseph P. Tracy 1941-4-11 16857 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC119548  Carex nudata A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  HSC39186  Carex nudata D. E. Anderson, J. P. Smith 1971-6-28 1214 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  JEPS80024  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  CAS-BOT-BC119389  Carex obnupta T. G. W. s.n. Humboldt Arcata Comment
  POM289940  Carex obnupta Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad. Comment
  JEPS80014  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  CAS-BOT-BC119232  Carex pachystachya Joseph Prince Tracy 1936-7-5 15043 Humboldt Grouse Mountain. 1524 Comment
  SEINET10883545  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13938 Humboldt Eureka. Damp place in open ground. Comment
  HSC104441  Carex pansa Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 15 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 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
  CAS-BOT-BC118007  Carex rossii Joseph Prince Tracy 1927-6-19 8201 Humboldt Big Lagoon 15 Comment
  CAS-BOT-BC116675  Carex subfusca Henry M. Pollard 1948-8-4 21 -2 Humboldt Orleans Mt. 1371 Comment
  SEINET7577147 Image available Carex subfusca Andrew L. Hipp 1999-5-31 447 Humboldt Fort Seward, Alder Point Road, ca 2 mi N of intersection w/ Ft. Seward Rd. 503 Comment
  CAS-BOT-BC115572  Carex tumulicola Joseph Prince Tracy 1930-7-10 8859 Humboldt In grassy opening, Brannan Mountain. 1219 Comment
  UC1103119  Carex tumulicola Joseph P. Tracy 1929-5-8 18297 Humboldt Strong's District School House Carlotta 60 Comment
  UC1115821  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strong's District School House, 5 miles E of town 45 Comment
  UC562332  Carex utriculata Joseph P. Tracy 8988 Humboldt South Fork Mountain; McKay Camp 1676 Comment
  RSA15477  Carex vesicaria Joseph P. Tracy 8988 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  UC562331  Carex vesicaria Joseph P. Tracy 1934-8-29 13622 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA28554  Carex viridula H. E. Parks 1935-09 5214 Humboldt Dry Lagoon, South of Orick Comment
  JEPS83013  Castilleja affinis subsp. affinis L. R. Heckard 1984-5-14 1655 Humboldt 2 mi s Phillipsville (just n of Freeway 101 on Avenue of the Giants) 83 Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  JEPS93136  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2433 Humboldt nw of Loleta (Table Bluff, s end of Humboldt Spit into Humboldt Bay, bluff between road to Loleta and beach); Table Bluff 30 Comment
  UC1196864  Castilleja affinis subsp. litoralis J. P. Tracy 1901-5-12 1084 Humboldt immediate vicinity Eureka 0 Comment
  UC1374929  Castilleja affinis subsp. litoralis Noel H. Holmgren and Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 mi w Ferndale Comment
  BLMAR305  Castilleja ambigua subsp. humboldtiensis Jennifer Anthony-Wheeler 2002-7-1 305 Humboldt South Spit 6 Comment
  HSC78957  Castilleja ambigua subsp. humboldtiensis L. P. Janeway 1984-4-28 749 Humboldt Arcata Bottoms; at westernmost contact of Jackson Ranch Rd. with Liscom Slough 2 Comment
  HSC55831  Castilleja applegatei G. L. Clifton 1979-7-25 10745 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56184  Castilleja applegatei Gilbert Muth 1979-8-1 12116 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS8683  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC255517  Castilleja applegatei var. pinetorum Barry Silver 1986-4-23 531 Humboldt Bair Road, 9.5 miles nw of junction with Highway 299, Pine Ridge Summit area 944 Comment
  HSC102121  Castilleja arachnoidea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1025 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56150  Castilleja arachnoidea G. L. Clifton, Griswold 1979-8-1 11999 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC48386  Castilleja hispida subsp. brevilobata Brad Klipfel 1973-6-10 110 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM87960  Castilleja litoralis L. R. Abrams, R. C. Bacigalupi 1922-06 8290 Humboldt North of Big Lagoon. Comment
  RSA221712  Castilleja litoralis Noel Holmgren, Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 miles west of Ferndale. Comment
  HSC55670  Castilleja pruinosa Overton, Butler 1979-7-25 9874 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC70292  Castilleja pruinosa Gail Newton 1980-7-22 1671 Humboldt Near Devils Backbone 1554 Comment
  UC1196742  Castilleja pruinosa Joseph P. Tracy 1939-4-29 16230 Humboldt opposite mouth of Hors Linto Creek; Trinity River 152 Comment
  UC1502103  Ceanothus R. Sutherland 1975-7-4 8 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  SBBG115928  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  HSC36640  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1901 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  UCD19484  Ceanothus cuneatus John M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest), on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine. 1463 Comment
  SEINET7720971  Ceanothus cuneatus Chesnut, Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC37602  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 10 .13575 Humboldt Brushy flat 509 Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  CAS-BOT-BC63724  Ceanothus integerrimus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  HSC60024  Ceanothus integerrimus M. A. Baker 1978-5-6 474 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  HSC43181  Ceanothus parryi R. Sutherland 1975-7-3 2 .3775 Humboldt Along Ettersburg Rd. 488 Comment
  HSC43182  Ceanothus parryi R. Sutherland 1975-7-5 9 .5775 Humboldt 244 Comment
  RSA25753  Ceanothus parryi Carl B. Wolf 1941-7-28 11092 Humboldt Slope along Eel River, 1 mile S of Miranda. 30 Comment
  SBBG4431  Ceanothus parryi M. Van Rensselaer 1941-4-29 1644 Humboldt Redwood Hwy near Garberville Comment
  UC203997  Ceanothus parryi Joseph P. Tracy 1918-7-6 5045 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  RSA170272  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon, along Trinity Hwy Comment
  CAS-BOT-BC52220  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1553 Humboldt Big Lagoon Comment
  CAS-BOT-BC52998  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick, along the hills near the ocean. Comment
  HSC31463  Ceanothus thyrsiflorus Steve Selva, Roger Jensen 1974-8-28 100 Humboldt Behind HSU Campus Comment
  RSA18143  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick. Comment
  RSA31956  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Sandy bluff above Patric Point State Park near Big Lagoon Comment
  RSA46888  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill-Mad River Comment
  UC668160  Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 60 Comment
  HSC37061  Ceanothus velutinus R. Sutherland 1975-6-19 0 .19675 Humboldt 320 Comment
  HSC37062  Ceanothus velutinus R. Sutherland 1975-5-30 1 .30575 Humboldt 320 Comment
  UC153952  Centaurium davyi Joseph P. Tracy 1907-7-4 2585 Humboldt 0.5 mi n mouth of Little River; Northern Coast Ranges 15 Comment
  RSA120711  Centaurium muehlenbergii S. S. Tillett 1956-7-6 607 Humboldt Above Klamath River, along Ishi Rish Road, one mile north of Orleans. 168 Comment
  UC1198629  Centaurium muehlenbergii Joseph P. Tracy 1942-7-18 17283 Humboldt Garberville 152 Comment
  UC906756  Centaurium muehlenbergii Joseph P. Tracy 1941-9-7 17013 Humboldt near Blue Lake; Mad River 15 Comment
  UCR123952  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-7-8 6964 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  POM208980  Centaurium muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt South slope of Look Prairie, Bull Creek watershed. 381 Comment
  UC1196467  Cephalanthera austiniae Joseph P. Tracy 1948-8-15 18149 Humboldt on ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  HSC74273  Cerastium glomeratum M. A. Baker 1980-5-23 1381 Humboldt Near Buck Mtn. 1524 Comment
  HSC68022  Cerastium glomeratum J. P. Smith, Steve Selva 1970-6-30 4140 Humboldt Comment
  SEINET6904629  Cerastium glomeratum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC673250  Cercis occidentalis Lincoln Constance and Reed C. Rollins 1942-5-12 2895 Humboldt bluffs at junction of Klamath River and Salmon River (1 mi s of Somes Bar); Klamath-Siskiyou Region 152 Comment
  UC535726  Cercocarpus betuloides var. betuloides Eleanor Armstrong 1934-8-22 1184 Humboldt Richardson Grove 121 Comment
  HSC8035  Chamaesyce maculata D. E. Anderson 1963-9-21 2840 Humboldt 0.5 mi E of Willow Creek Comment
  JEPS52363  Chamaesyce serpyllifolia Joseph P. Tracy 1928-9-16 6555 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley Comment
  SBBG60189  Chamerion angustifolium R. Hartwell 1938-8-7 Humboldt near Eureka Comment
  HSC55146  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 12051 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC98520  Chamerion angustifolium subsp. circumvagum Cara Witte 2008-8-6 998 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  HSC99520  Chamerion angustifolium subsp. circumvagum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 183 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC505109  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1932-7-17 10664 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1676 Comment
  UC197914  Cheilanthes gracillima Joseph P. Tracy 1908-7-3 2765 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC25383  Chenopodium album Thomas W. Nelson 1972-10-25 702 Humboldt Eureka, waste area of Harris and B St. Comment
  POM188634  Chenopodium botrys Marcus E. Jones 1931-7-16 28870 Humboldt Junction, East of Arcata Comment
  UC673035  Chenopodium macrospermum var. halophilum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; on shore 3 Comment
  UC1197597  Chimaphila menziesii Joseph P. Tracy 1926-6-6 7583 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  CAS-BOT-BC451500  Chimaphila umbellata Doris K. Kildale 1928-4-29 5962 Humboldt Bald Mountain Comment
  UC1197600  Chimaphila umbellata Joseph P. Tracy 1932-7-16 10644 Humboldt woods near McKay Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC21655  Chimaphila umbellata Bolander 6544 Humboldt Parkers Station, Eureka Trail Comment
  UC32702  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  RSA467017  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-7-31 237 Humboldt Orleans Mt. 1372 Comment
  UC519306  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-30 13036 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC519307  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC519308  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  CAS-BOT-BC420346  Chrysosplenium glechomifolium V. Rattan 1879-6-1 27 Humboldt Long Prarie Creek Comment
  UC906758  Cicendia quadrangularis Joseph P. Tracy 1942-5-16 17342 Humboldt Garberville 152 Comment
  JEPS35983  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region. South Fork Eel River. On E side of road at Englewood, across the road from Collin's Englewood Campground. Comment
  UC1197342  Cicuta douglasii Joseph P. Tracy 1936-8-17 15154 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, Salmon Creek Flats); Northern Coast Region, Humboldt Bay, Salmon Creek Flats 6 Comment
  UC642241  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC30333  Cicuta douglasii Dale R. Gradek 1974-5-29 89 Humboldt SE end of Big Lagoon County Park 3 Comment
  UC179916  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UCD127358  Cicuta douglasii Bellue Goodwin 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC58807  Cinna latifolia G. L. Clifton 1979-7-31 11865 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76194  Cinna latifolia Overton, Butler 1979-8-2 12506 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA183599  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad river, ca. 3 miles south of Blue Lake Comment
  HSC39165  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-28 - 1238 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UCD20404  Circaea alpina subsp. pacifica Donald C. Hagar 1957-8-27 218 Humboldt 8.5 miles NE of Hoopa, Domingo Block 'e'. 1371 Comment
  CAS-BOT-BC279974  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  BLMAR107  Cirsium occidentale var. candidissimum Jennifer Anthony-Wheeler 1994-7-26 107 Humboldt Lacks Creek, growing on dry exposed banksurrounded by doug fir 1158 Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  RSA0070881  Cirsium remotifolium A. K. Kellogg, W. G. W. Harford 1868-1 558 Humboldt [Unspecified] Comment
  CAS-BOT-BC285772  Cirsium vulgare Carl B. Wolf 1927-8-22 803 Humboldt Big Lagoon Comment
  CHSC32908  Clarkia amoena James P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UC183664  Clarkia amoena Joseph P. Tracy 1912-7-21 3758 Humboldt Alton Northern Coast Region 30 Comment
  UC183682  Clarkia amoena Joseph P. Tracy 1912-7-22 3790 Humboldt Table Bluff Northern Coast Region 60 Comment
  CAS-BOT-BC160973  Clarkia amoena subsp. amoena L. R. Abrams 1918-6-16 7140 Humboldt Willow Creek Comment
  JEPS23479  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  CAS-BOT-BC160955  Clarkia amoena subsp. amoena Doris K. Kildale 1926-7-11 2367 Humboldt Wildcat Ridge near Mountain Glen Comment
  CAS-BOT-BC163504  Clarkia amoena subsp. huntiana J. H. Thomas 1949-6-12 898 Humboldt At entrance to Six Rivers National Forest between Martins Ferry and Orleans Comment
  JEPS43546  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-12 2020 Humboldt Martin's Ranch South Fork of Trinity <River> Comment
  UC1072043  Clarkia amoena subsp. huntiana H. and M. Lewis 1947-6-12 416 Humboldt 0.1 mi w Trinity Co. line (Highway 36) Comment
  RSA244979  Clarkia concinna subsp. concinna B. D. Rogers, W. J. Ferlatte 1966-6-15 2105 Humboldt Larabee Valley 762 Comment
  UC1198509  Clarkia concinna subsp. concinna Joseph P. Tracy 1934-7-9 13335 Humboldt ridge 5 mi s Harris 762 Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  HSC78965  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  UC144076  Clarkia davyi Joseph P. Tracy 1907-7-20 2592 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC144077  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1908-6 2679 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 Comment
  UC144078  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3030 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1196978  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1937-7-5 15372 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC160994  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1911-7-5 3307 Humboldt near mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges 182 Comment
  JEPS1957 Image available Clarkia purpurea subsp. viminea W. L. Jepson 1902-8-13 1971 Humboldt near Redwood Creek; Hupa Road; Hupa Road, near Redwood Creek, Humboldt Co. 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
  HSC41252  Claytonia exigua subsp. glauca Brad Klipfel 1974-5-27 401 Humboldt Horse Mtn. Comment
  HSC96213  Claytonia exigua subsp. glauca M. Lindquist, C. Riley 2005-6-15 12 Humboldt 1490 Comment
  CAS-BOT-BC440090  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 369 Humboldt Horse Mtn; 2.6 mi. s. of U.S. 299 on the Horse Mtn/Titlow Hill rd. On the west side of the road. 1066 Comment
  UC183593  Claytonia rubra subsp. depressa Joseph P. Tracy 1913-3-23 4027 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UC203565  Claytonia rubra subsp. rubra Joseph P. Tracy 1918-4-14 4871 Humboldt Fish's Mill Creek; Northern Coast Ranges, Dows Prairie 60 Comment
  HSC44423  Claytonia saxosa Brad Klipfel 1975-5-30 652 Humboldt Horse Mtn. Comment
  CHSC13604  Claytonia sibirica A. R. Morrison 1974-4-27 Humboldt Scattered in Redwood understory ca. 1.5 mi. off Hwy. 101 on Westhaven Rd., Trinidad. 42 Comment
  SBBG69724  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  UC672993  Claytonia sibirica Joseph P. Tracy 1939-4-25 16220 Humboldt Bull Creek 60 Comment
  HSC45492  Claytonia sibirica Maralyn O'Meara 1972-6-8 103 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  SEINET11931359  Claytonia sibirica Unknown 1977-1 2 Humboldt S end of Patricks Point State Park, ca 0.2 km W of hwy 101 & 5 km N of Trinidad 200 Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC62682  Claytonia washingtoniana Michelle Stevens 1979-4-21 53 Humboldt Ponds across from Clam Beach 0 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
  HSC24332  Claytonia washingtoniana C. E. Fellows 1970-4-19 257 Humboldt 4.5 mi. S of Orick, 1/4 mi. E of Hwy. 101 on old Hwy. 101 Comment
  HSC99241  Claytonia washingtoniana C. E. Fellows 1971-6-7 452 Humboldt Clam Beach Bluffs, 9/10 mi. N of jct. of Little River Rd. and Central Ave., E side of Little River Rd. Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  CAS-BOT-BC499336  Clintonia andrewsiana M. S. Jussel 1931-5-2 s. n. Humboldt 20 miles N. of Garberville Comment
  UC1537231  Clintonia andrewsiana Gordon H. True Jr. 1936-5-12 469 Humboldt 5 mi n of Kneeland 457 Comment
  CAS-BOT-BC499963  Clintonia uniflora Doris Kildale 1931-5-10 10688 Humboldt Snow Camp Comment
  HSC101087  Coincya monensis Andrea Pickart 2009-2-20 729 Humboldt Manila Dunes; End of Lupine Ave., Manila 15 Comment
  HSC92754  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  HSC70391  Collinsia grandiflora Gail Newton 1980-6-7 120 Humboldt Near Brush Mtn. 1128 Comment
  HSC70392  Collinsia grandiflora M. A. Baker 1980-6-8 1908 Humboldt Near Buck Flat. 1554 Comment
  JEPS6215  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  HSC73765  Collinsia greenei Gail Newton 1980-7-11 1317 Humboldt Near Red Mtn. 1341 Comment
  JEPS25064  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  HSC100662  Collinsia sparsiflora Carl C. Marshall Jun 1887 427 Humboldt Spruce Grove. Comment
  JEPS6323  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Beaver River Ridge; North Coast Ranges 609 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC908768  Collomia heterophylla P. B. Kennedy 1929-6-14 Humboldt California Barrel Company Range Arcata Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  UC133632  Collomia tracyi Joseph P. Tracy 1908-6 2719 Humboldt opposite Buck Mountain (sand bars along river); Northern Coast Ranges, valley of Van Duzen River; valley of Van Duzen River, opposite Buck Mt., Humboldt Co. 304 Comment
  UC978536  Collomia tracyi Joseph P. Tracy 1932-7-12 10468 Humboldt head of Brett Hole Trinity Summit (rocky exposed places) 1828 Comment
  UC978537  Collomia tracyi Milo S. Baker July, 1923 102 Humboldt near Carlotta; Van Duzen River bed Comment
  CAS-BOT-BC157350  Comarum palustre Doris K. Kildale 1926-6-25 2173 Humboldt Big Lagoon Comment
  JEPS47868  Convolvulus arvensis Lincoln Constance 1934-5-27 692 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (gravel bar of river at s end) 45 Comment
  CDA30705  Conyza canadensis M. K. Beyers, I. Shepardson 2009-9-13 254 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC67014  Conyza canadensis J. P. Smith 1971-10-9 4988 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  RSA696831  Conyza canadensis J. Russell Bruff 1937-8-17 939 Humboldt Richardson Grove, bed of Eel River. Comment
  UC1196211  Coptis laciniata Joseph P. Tracy 1915-8-2 4663 Humboldt Northern Coast Ranges, Mouht of Lawrence Creek Lawrence Creek; Northern Coast Ranges, Lawrence Creek 152 Comment
Read comments
Jan 22 2014
  HSC73022  Corallorhiza maculata Gail Newton 1980-8-10 2028 Humboldt Near Blake Mtn. 1798 Comment
  HSC99341  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-12 526 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  UC14965  Corallorhiza maculata P. E. Goddard 1901-7-8 29 Humboldt Hupa Valley Comment
  UC14983  Corallorhiza maculata J. Burtt Davy and W. C. Blasdale 1899-6-18 5622 Humboldt Bald Mt. Comment
  HSC16578  Corallorhiza maculata William J. Ferlatte, B. D. Rogers 1966-6-15 2099 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  SJSU916  Corallorhiza mertensiana J. W. Tilden 1946-6-21 1013 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  HSC63191  Corallorhiza striata M. A. Baker 1979-6-28 940 Humboldt Comment
  BLMAR311  Cordylanthus maritimus subsp. palustris Jennifer Anthony-Wheeler 2002-7-1 311 Humboldt South Spit 6 Comment
  POM21053  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-22 6158 Humboldt Between Little and Big Van Druzen River - Eureka - Red Bluff Road. Comment
  UC936241  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1949-8-4 18411 Humboldt Mud Springs Trinity Summit 1341 Comment
  CDA39436  Cordyline australis Gordon Leppig 2004-6-8 2165 Humboldt Eureka, abandoned railroad tracks at Second St. and Commercial Ave. Comment
  CAS-BOT-BC101140  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 s.n. Humboldt End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata Comment
  JEPS30545  Corethrogyne filaginifolia Peter H. Raven with R. Snow 1958-7-21 13658 Humboldt 2.0 mi n Cape Mendocino Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  RSA47113  Corethrogyne filaginifolia var. californica Doris K. Kildale 1925-7-26 1066 Humboldt Mad River near Blue Lake Comment
  CAS-BOT-BC212018  Cornus nuttallii Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  SEINET10448332  Coronopus didymus Mary Susan Taylor 1980-10-9 Taylor 3365 Humboldt Bed of Jacoby Creek, ca. 0.4 mi W of its jct with Arcata Rd, ca. 5 mi S of Arcada in Bayside, Robert Dalenicek property. 15 Comment
  UC176170  Corylus californica Joseph P. Tracy 1912-3-3 3560 Humboldt on West place, between Eureka and Fields Landing Northern Coast Region 0 Comment
  RSA152313  Corylus cornuta var. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, along Hookton road. 9 Comment
  HSC5421  Cotula australis D. E. Anderson 1963-3-16 2388 Humboldt At foot of Scotia Bluffs Comment
  HSC5431  Cotula coronopifolia H. E. Parks Sep 1941 24211 Humboldt Little River Beach Park, along highway 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
  SEINET13729303  Crassula connata var. connata Unknown 1925-5-17 6981 Humboldt Plants of Northern Coast Ranges of California HUMBOLDT COUNTY Oopen bare ground. TRINITY RIVER VALLEY, NEAR THE SOUTH FORK Altitude 600 feet. Comment
  RSA20802  Crataegus douglasii Carl B. Wolf 1937-8-13 s.n. Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC104401  Crataegus gaylussacia Jim McIntosh 2012-5-22 Humboldt Klamath Mountains; southern Siskiyou Mtns., adjacent to north side of State Route 169 at Milepost 22.09; 200 ft. above Klamath River. 96 Comment
  POM126151  Crataegus suksdorfii Joseph P. Tracy 1922-6-18 6097 Humboldt Valley along head of S Yoga Creek. 762 Comment
  HSC57409  Crepis acuminata G. L. Clifton, Griswold 1979-7-26 10167 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC581731  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  OBI77435  Crepis acuminata David J. Keil 1983-7-2 17326 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC1051583  Crepis capillaris Joseph P. Tracy 1949-9-26 18229 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA95100  Crepis capillaris F. W. Peirson 1923-7-11 3936 Humboldt flats N of Eureka. Comment
  UC538046  Crepis occidentalis E. B. Babcock 1932-6-23 403 Humboldt near Bridgeport (saddle of ridge above Art Renfroe's place) Comment
  UC538047  Crepis occidentalis E. B. Babcock 1932-6-25 404 Humboldt South Fork Mt.; exposed n slope, Humboldt-Trinity Counties 1828 Comment
  UC538048  Crepis occidentalis subsp. pumila E. B. Babcock 1932-6-23 402 Humboldt near Bridgeport; Art Renfroe's place Comment
  UC581732  Crepis pleurocarpa Joseph P. Tracy 1935-7-28 14332 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC42455  Crepis pleurocarpa Barbara Kelly 1977-7-16 540 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  CAS-BOT-BC290908  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto [Horse Linto] Creek 152 Comment
  UC1199231  Crocidium multicaule Joseph P. Tracy 1929-3-16 8528 Humboldt at Willow Creek (gravel bar); Trinity River Valley 152 Comment
  UC249531  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt Sout Yager Creek Valley 762 Comment
  HSC100401  Cryptantha flaccida Carl C. Marshall Jun 1887 456 Humboldt Near Harris. Comment
  HSC3576  Cryptantha leiocarpa J. W. Johnson 1962-5-27 1381 Humboldt Arcata; at N end near the foredunes, Christensen Farm, Samoa Peninsula Comment
  UC175684  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3944 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC175496  Cryptantha torreyana Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5730 Humboldt Supply Creek North Coast Ranges, Hupa Valley Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UCSB24349  Cuscuta subinclusa Tracy, Joseph 1924-7-20 Humboldt Brannan Mt.; on Willow Cr. Road 1005 Comment
  HSC34495  Cynoglossum grande J. D. Ackerman 1975-5-3 438 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  SEINET6633542  Cyperus bipartitus Henry M. Pollard 1945-1 s.n. Humboldt Misson creek, Klamath River Canyon Comment
  UC303019  Cyperus bipartitus Joseph P. Tracy 1926-8-12 7766 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC668035  Cyperus eragrostis Joseph P. Tracy 1932-10-30 10897 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC1103641  Cyperus strigosus Joseph P. Tracy 1931-9-7 9655 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC97971  Cypripedium californicum Cara Witte 2007-6-21 316 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near mine area. 1283 Comment
  RSA382009  Cypripedium montanum Ryan 1917-6-10 s.n. Humboldt Hoopa Indian Reservation Comment
  HSC1045  Cystopteris fragilis D. E. Anderson 1965-5-15 3713 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC14675  Cytisus scoparius William J. Ferlatte 1963-4-21 19 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  RSA54136  Dactylis glomerata Henry M. Pollard 1946-8-25 s.n Humboldt Wilson Creek. Orleans region Comment
  HSC98849  Danthonia unispicata Cara Witte 2008-7-11 870 Humboldt Horse Mountain Botanical Area. 1/2 mi. south from intersection of National Forest 1, Forest Service Roads 6N38 and 6N36. 1413 Comment
  CAS-BOT-BC420359  Darmera peltata Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  CAS-BOT-BC420362  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC303173  Darmera peltata Joseph P. Tracy 1923-4-15 6180 Humboldt Redwood Creek Northern Coast Ranges (at Berry's) 274 Comment
  UC169898  Datisca glomerata Harley P. Chandler June, 1901 1518 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  HSC71592  Daucus carota M. A. Baker 1980-6-26 2403 Humboldt Near Sims Creek 610 Comment
  SBBG5180  Daucus pusillus H. and M. Dearing 1939-5-25 3442 Humboldt sand dunes near Samoa Comment
  POM232322  Daucus pusillus I. L. Wiggins 1930-7-11 4678 Humboldt Near Samoa Comment
  UC1197354  Daucus pusillus J. P. Tracy 1907-7-4 2579 Humboldt 1/2 mi. n. mouth of Little River Comment
  CAS-BOT-BC9029  Delphinium decorum subsp. tracyi Doris Kildale Gillespie 1931-5-10 10550 Humboldt Snow Camp Comment
  RSA249435  Delphinium depauperatum D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-14 5603 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC668272  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  SEINET12099543  Delphinium hesperium H. P. Chandler 1901-1 1410 Humboldt Klamath River 1000 Comment
  HSC44525  Delphinium nuttallianum Brad Klipfel 1973-7-1 133 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196334  Delphinium trolliifolium Joseph P. Tracy 1947-4-27 17675 Humboldt Table Bluff 60 Comment
  UC1334518  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-29 9 Humboldt 1 1/2 mi n Kneeland Comment
  JEPS23301  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  SEINET879526  Dentaria integrifolia J. P. Tracy 1921-1 5426 Humboldt Blue Slide, on Van Duzen River. 91 Comment
  HSC93674  Deschampsia cespitosa Peter Haggard 1996-7-8 Humboldt Eureka, North Coast Railroad right-of-way. Comment
  UCD61140  Deschampsia cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp. 1402 Comment
  UC1103212  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1912-7-21 3789 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC102190  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1104 Humboldt Andy's Camp 1564 Comment
  RSA10093  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Goose Mountain; along streamlet 1524 Comment
Read comments
Jul 26 2012
  RSA12539  Deschampsia elongata C. B. Wolf 1934-7-2 5899 Humboldt at Snow Camp (Mts. east of Korbel) 1372 Comment
  HSC98873  Dianthus armeria Cara Witte 2007-8-1 618 Humboldt Friday Ridge Road (Forest Service Road 6N08). Approximately 1.25 miles northeast of intersection with Friday Camp. 1222 Comment
  HSC8357  Dicentra formosa D. A. Shally 1965-5-15 51 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC8356  Dicentra formosa Eugene Andreuccetti 1964-4-11 18 Humboldt 1/2 mi. S of Garberville on Hwy. 101 Comment
  CAS-BOT-BC402414  Dicentra formosa subsp. formosa N. Wynne; M. Peckham; J. Bamesberger 1994-5-6 41 Humboldt Intersection of Hwy 299 and Redwood Valley Rd on south side of Hwy 299 609 Comment
  HSC72685  Dicentra formosa subsp. oregana J. P. Smith 1977-7-3 9267 Humboldt Onion Lake Comment
  CAS-BOT-BC208955  Dichanthelium oligosanthes subsp. scribnerianum Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  UC146195  Dichelostemma capitatum Joseph P. Tracy 1908-6-9 2674 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC483665  Dichelostemma capitatum Doris K. Kildale 1927-4-17 3097 Humboldt Breeland Bridge 1/2 mile west of Garberville 114 Comment
  HSC48032  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1974-5-27 406 Humboldt Horse Mtn. Comment
  HSC99667  Dichelostemma capitatum subsp. capitatum Steven Lee 2004-4-25 24 Humboldt South Fork Rd. from Hwy. 299 to Co. Rd. 341, 1/8 mi. down river access trail at end of rd. Comment
  UCD139434  Dichelostemma capitatum subsp. capitatum J. W. Logan 2016-6-17 s.n. Humboldt from Kneeland Ranges. Comment
  SEINET6879154  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CHSC31277  Dichelostemma ida-maia Mark Stopher 1980-5-28 72 Humboldt Hillside along Hwy 169 1.2 mi e of Martins Ferry Bridge. 170 Comment
  HSC3033  Dichelostemma ida-maia H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC60039  Dichelostemma ida-maia M. A. Baker 1978-5-6 495 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC501013  Dichelostemma ida-maia Volney Rattan 1879-1-1 s.n. Humboldt Klamath 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
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  UC1950249  Dichelostemma ida-maia Barbara Ertter with Thomas J. Delendick 1987-5-16 6918 Humboldt Vista Point just W of Berry Summit on Hwy 299, open grassy S-facing slope Comment
  RSA54137  Digitaria sanguinalis Henry M. Pollard 1944-9-7 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC150347  Diplacus aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt Stone Lagoon, below Orick Comment
  SEINET13768865 Image available Diplacus aurantiacus Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 15332 Humboldt Ten miles South Squaw Creek Comment
  CAS-BOT-BC153234  Diplacus kelloggii John Cromwell; Julie Schneider; Audie Thoele 1994-3-19 5 Humboldt Hell's Half Acre, trailhead located about 12 miles South of South Fork Road off of Hwy. 299 457 Comment
  CAS-BOT-BC153240  Diplacus kelloggii Doris K. Kildale 1928-5-1 5985 Humboldt [MacLellan] McClellan Mountain 914 Comment
  RSA183538  Disporum smithii H. S. Logsdon 1964-5-10 2 Humboldt 4.0 miles N.E. of Orick at Boye s Prairie Comment
  RSA20815  Disporum smithii Carl B. Wolf 1937-9-10 9313 Humboldt Along old logging road 2 miles E of Trinidad on way to Hammond Lumber Co. s Camp 20 (abandoned). 152 Comment
  CDA15326  Distichlis spicata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Common to dominant perennial in grasslands around salt marsh near Loleta. 0 Comment
  HSC9631  Distichlis spicata J. D. Wilder 1965-5-19 46 Humboldt Along Humboldt Bay, N end. Comment
  UCD64176  Distichlis spicata A. H. Murphy 1950-8-1 Humboldt Ocean House area, Cape Mendocino. Comment
  UC1198619  Dodecatheon hendersonii Joseph P. Tracy 1923-3-17 6165 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC562465  Dodecatheon hendersonii Joseph P. Tracy 1924-3-9 6612 Humboldt Kneeland Prairie 762 Comment
  UCSB28097  Dodecatheon hendersonii Phelps, M. 1972-3-18 Humboldt 1.5 mi. from Garberville along Old Briceland Ed., 1,000 yds. north of roadside. 213 Comment
  HSC63143  Draperia systyla M. A. Baker 1979-6-28 949 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek Comment
  HSC74471  Draperia systyla Gail Newton 1980-7-23 1739 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC44732  Drosera rotundifolia Maralyn O'Meara 1971-10-25 55 Humboldt S side of Big Lagoon Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  HSC76190  Drymocallis glandulosa var. reflexa Overton, Butler 1979-7-24 9773 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC492181  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1927-6-18 8181 Humboldt three mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  CAS-BOT-BC71056  Dryopteris expansa Doris K. Kildale 1928-12-23 6761 Humboldt on Orick - Bald Hills road Comment
  UCSB30620  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  UC1198834  Dudleya farinosa J. P. Tracy 1907-7-4 2581 Humboldt betw Little River and Trinidad 30 Comment
  CAS-BOT-BC113802  Dulichium arundinaceum Joseph Prince Tracy 1938-9-25 16173 Humboldt Dense masses in shallow water, Bald Mountain, at Lake Prairie. 1066 Comment
  BLMAR359  Echinochloa crus-galli Jennifer Anthony-Wheeler 2003-10-21 359 Humboldt Headwaters Forest Reserve, coming out of rice straw 487 Comment
  UC1103264  Echinochloa crus-galli Joseph P. Tracy 1934-8-14 13569 Humboldt Alton; Northern Coast Region 30 Comment
  RSA365462  Eleocharis acicularis var. acicularis Thomas W. Nelson, Jane P. Nelson 1977-6-19 3508 Humboldt Lassics: Pond above Alder Springs 1585 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC666917  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt Trinity Summit, McKay Prairie 1584 Comment
  UC666918  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13464 Humboldt Big Lagoon, small farm on shore 3 Comment
  POM273092  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  POM313063  Eleocharis pachycarpa Malcolm A. Nobs, S. Galen Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  UC666916  Eleocharis suksdorfiana Joseph P. Tracy 1932-7-14 10559 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC197347  Elymus L. R. Abrams 1918-6-16 7137 Humboldt Willow Creek Comment
  HSC39716  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1262 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC71508  Elymus glaucus M. A. Baker 1980-6-26 2466 Humboldt Near Sims Creek 610 Comment
  HSC74697  Elymus glaucus Gail Newton 1981-8-7 2465 Humboldt Near Board Camp Mtn. 1478 Comment
  RSA129235  Elymus glaucus H. S. Yates 1936-6-17 5705 Humboldt South Fork Pk.; Lower N.W. slope of Buck Mt. 793 Comment
  UC1103206  Elymus glaucus J. P. Tracy 1902-7-4 1761 Humboldt Immediate vicinity of Eureka 0 Comment
  UC526796  Elymus glaucus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8914 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC526797  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC526798  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC9732  Elymus mollis subsp. mollis D. M. Thompson 1965-5-3 47 Humboldt 1/4 mile S of Fern Canyon, Gold Bluff Beach. Comment
  CHSC35546  Elymus multisetus James Payne Smith Jr. 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 548 Comment
  HSC72676  Elymus multisetus J. P. Smith 1977-7-3 9256 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC98008  Elymus multisetus Cara Witte 2007-7-8 439 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  SEINET200933  Elymus trachycaulus subsp. trachycaulus J. P. Tracy 1912-7-27 3885 Humboldt Kneeland prairie 762 Comment
  SDSU8812  Epilobium angustifolium Harvey 1938-8-13 2236 Humboldt Stephens Grove Comment
  HSC54011  Epilobium ciliatum subsp. ciliatum Griswold, Butler 1979-7-12 7141 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SD219078  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Highway 101, ca. 3.0 miles north of Eureka. 2 Comment
  HSC103258  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-11 Humboldt Six Rivers National Forest, Trinity Mountain Quad, Lower Trinity District, Tish Tang Creek. 1311 Comment
  RSA249499  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. C. Everett 1965-8-7 35201 Humboldt Samoa Peninsula. Elevation near sea level. Comment
  UC1198500  Epilobium densiflorum Joseph P. Tracy 1909-8-1 3059 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  HSC74235  Epilobium minutum M. A. Baker 1980-7-11 2792 Humboldt Near Red Mtn. 1341 Comment
  SEINET10632318  Epilobium oreganum Joseph P. Tracy 1933-7-25 Tracy 12835 Humboldt Grouse Mountain 1500 Comment
  SEINET10890728  Epilobium oreganum Chestnut 1888-8-1 CHESTNUT s.n. Humboldt Grouse Creek, growing rankly along brooks Comment
  HSC55147  Epilobium oregonense G. L. Clifton, Griswold 1979-8-1 12067 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS44027  Epilobium septentrionale W. L. Jepson 1924-9-19 10652 Humboldt river bed at Richardson Grove (S. Fork Eel R.); , Richardson Grove Comment
  RSA23648  Epilobium septentrionale Carl B. Wolf 1939-7-8 9521 Humboldt North bank of Matolle River, 2 miles above Petrolia. 61 Comment
  UC204002  Epilobium torreyi Joseph P. Tracy 1918-7-6 5050 Humboldt near Humboldt-Mendocino County Line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC57161  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  RSA53855  Equisetum hyemale var. affine Henry M. Pollard 1946-8-31 s.n. Humboldt New Wilson Creek, Orleans Mt. Comment
  CAS-BOT-BC57795  Equisetum telmateia Doris K. Kildale 1928-2-19 4274 Humboldt Metropolitan. Comment
  CAS-BOT-BC291176  Erechtites glomeratus H. E. Parks; S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove, Trinidad 60 Comment
  CAS-BOT-BC291173  Erechtites glomeratus Marck Menke 1999-5-30 31 Humboldt Patrick's Point State Park, along trail near Abalone Point Comment
  POM272118  Erechtites minimus Lyman Benson 1929-7-15 1821 Humboldt Clam Beach, Trinidad. Comment
  CAS-BOT-BC174278  Eremogone congesta var. suffrutescens Doris K. Kildale 1925-8-17 1243 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  RSA46777  Erigeron Doris Kildale Gillespie 1937-8-26 15345 Humboldt Christmas Prairie. Comment
  UCR51767  Erigeron bloomeri var. nudatus H. E. Parks 1937-1 24- 22 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  CAS-BOT-BC296118  Erigeron foliosus var. confinis Doris K. Kildale 1929-5-26 9141 a Humboldt Klamath River at Orleans 152 Comment
  RSA12520  Erigeron foliosus var. confinis C. B. Wolf 1934-7-3 5916 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  CDA14246  Erigeron foliosus var. foliosus P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Margin of Hwy 36, immed. W of Bridgeville along Van Duzen River. 0 Comment
  CAS-BOT-BC300674  Erigeron foliosus var. mendocinus Alice Eastwood; John Thomas Howell 1937-6-22 4731 Humboldt Near Alder Point Comment
  CDA4960  Erigeron glaucus G. D. Barbe, T. C. Fuller 1974-6-17 1834 Humboldt Lower Pacific Drive at Sail Court, west of the golf course, south of the sewer plant, Shelter Cove. 0 Comment
  HSC31557  Erigeron glaucus Glenn McGourty 1974-4-27 32 Humboldt Along side of Mattole River Comment
  UC204830  Erigeron glaucus Joseph P. Tracy 1918-7-1 4972 Humboldt 3 mi s of point of cape Cape Mendecino (on sandy places along ocean shore) 3 Comment
  HSC58174  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-2 12255 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC97980  Erigeron klamathensis Cara Witte 2007-7-8 448 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC98524  Erigeron klamathensis Cara Witte 2008-7-30 978 Humboldt National Forest 1. 2 miles north of intersection with Forest Service Road 4N09. 1267 Comment
  CAS-BOT-BC214588  Erigeron philadelphicus L. R. Abrams 1922-6-25 8225 Humboldt 6 mi north of Garberville Comment
  POM54263  Erigeron philadelphicus H. P. Chandler 1901-06 1402 A Humboldt Klamath River. Comment
  UC202679  Erigeron philadelphicus var. philadelphicus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC1223008  Erigeron robustior Joseph P. Tracy 1951-6-26 19585 Humboldt extreme head of Redwood Creek; , Board Camp Mountain Comment
  CAS-BOT-BC224260  Eriodictyon californicum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville Comment
  UC412835  Eriogonum compositum var. compositum P. E. Goddard 1906-6 665 Humboldt Lasseck Pk. Comment
  BLMAR108  Eriogonum latifolium Jennifer Anthony-Wheeler 1994-9-8 108 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  UC665682  Eriogonum latifolium H. E. Parks August,1941 24198 Humboldt sand dunes, Little River Little River Comment
  CAS-BOT-BC259537  Eriogonum luteolum var. luteolum Doris K. Kildale 1926-8-29 2594 Humboldt On Van Duzen River at Swimmer's Delight near Strong's Station Comment
  UC1198101  Eriogonum luteolum var. luteolum Joseph P. Tracy 1919-9-13 5192 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC261493  Eriogonum nudum var. nudum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC261496  Eriogonum nudum var. nudum Doris Kildale 1931-6-6 10864 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  HSC98667  Eriogonum nudum var. nudum Cara Witte 2007-6-19 296 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1254 Comment
  UC1198141  Eriogonum nudum var. nudum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9040 Humboldt near Blake lookout (along summit of South Fork Mountain); South Fork Mountain 1737 Comment
  UC1198147  Eriogonum nudum var. nudum Joseph P. Tracy 1948-8-8 18094 Humboldt near school house; Iaqua 609 Comment
  CAS-BOT-BC269868  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 316 Humboldt In the vicinity of Hoopa Comment
  HSC99125  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-9 458 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  UC302989  Eriogonum umbellatum var. goodmanii Joseph P. Tracy 1926-6-20 7640 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC444000  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Sayler 1371 Comment
  HSC98668  Eriogonum umbellatum var. nelsoniorum Cara Witte 2008-7-14 888 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1431 Comment
  JEPS34628  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-23 622 Humboldt sw slope, upper end of Look Prairie; Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  UC90251  Eriophyllum lanatum var. achilleoides unknown 1890-7-5 Humboldt Comment
  BLMAR631  Eriophyllum lanatum var. arachnoideum Jennifer Wheeler 2011-6-15 631 Humboldt Lacks Creek, Bair road Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  UC535728  Eriophyllum lanatum var. arachnoideum Eleanor Armstrong 1934-8-30 1180 Humboldt creek bed Richardson Grove 121 Comment
  HSC41264  Eriophyllum lanatum var. lanceolatum Brad Klipfel 1974-7-23 457 Humboldt Horse Mtn. Comment
  CAS-BOT-BC301925  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt Along the highway between Little River and Trinidad Comment
  CDA17338  Eriophyllum staechadifolium B. Freeman 2004-8-2 PDR 1403792 Humboldt North Coast; Petrolia Road, Lost Coast, Petrolia. 0 Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  UC1222612  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1951-6-21 19528 Humboldt in bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); Hydesville, , Everett Beck ranch house Comment
  CAS-BOT-BC41573  Erysimum capitatum Lincoln Constance; Reed Clark Rollins 1942-5-12 2879 Humboldt Klamath-Siskiyou Region. Klamath River 1 mile south of Bluff Creek, 5 miles northeast of Weitchpec. 121 Comment
  HSC6786  Erysimum menziesii R. T. Forester 1963-4-23 9 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  RSA0008583  Erysimum menziesii Vernon H. Oswald 2000-4-3 9911 Humboldt Near the junction of New Navy Base Road and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  RSA102134  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt Near Humboldt Bay Lighthouse between Fairhaven and end of sandy point off Eureka Comment
  HSC38519  Erythronium californicum D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  UC1197649  Erythronium californicum Joseph P. Tracy 1933-7-11 12709 Humboldt Grouse Mountain 1524 Comment
  UC146223  Erythronium californicum Ethel Tracy 1906-4-15 Humboldt Harris Northern Coast Ranges 762 Comment
  UC1197640  Erythronium californicum J. P. Tracy 1908-6-7 2611 Humboldt in woods Butler Valley 152 Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  RSA261455  Erythronium oregonum Suzanne May 1967-4-15 24 Humboldt Kneeland Road, 7 miles north of Bridgeville 213 Comment
  JEPS61877  Erythronium revolutum Ethel Tracy 1907-1 Humboldt Kneeland Prairie Comment
  HSC16769  Eschscholzia californica T. W. Beck 1963-4-27 38 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  HSC58806  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-31 11745 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC562612  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges 274 Comment
  CAS-BOT-BC310494  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC449999  Euchiton sphaericus Joseph P. Tracy 1918-9-1 5097 Humboldt on old Kneeland Prairie road Newells Camp (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay 457 Comment
  CAS-BOT-BC206924  Euonymus occidentalis Joseph P. Tracy; H. E. Parks 1925-6-14 7123 Humboldt Kneeland Paririe Road, along stream. 457 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
  UC668181  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt woods 3 mi. s.e. of business district Eureka 91 Comment
Read comments
May 24 2013
  JEPS52427  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC502956  Euphorbia spathulata Joseph P. Tracy 1929-5-5 8578 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River (slopes and groves along South Fork of Eel River) 121 Comment
  CAS-BOT-BC312206  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi. W. of Redwood Highway, Bull Creek - Petrolia Road, North Coast Range 304 Comment
  CAS-BOT-BC312211  Eurybia radulina Doris K. Kildale 1925-8-21 1312 Humboldt Head of South Yager Creek 914 Comment
  UC1173675  Eurybia radulina Joseph P. Tracy 1939-8-5 16380 Humboldt Dinsmores, Van Duzen River, opposite Buck Mt. Van Duzen River 762 Comment
  HSC67010  Euthamia occidentalis J. P. Smith 1971-10-9 5005 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1199324  Euthamia occidentalis Joseph P. Tracy 1919-9-14 5206 Humboldt near mouth, (valley of Trinity River) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC65452  Festuca californica J. P. Smith, J. O. Sawyer 1973-5-12 6697 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  UC525633  Festuca californica Joseph P. Tracy 1926-5-30 7518 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC552675  Festuca elmeri Joseph P. Tracy 1935-5-25 13877 Humboldt Fort Seward 106 Comment
  HSC63852  Festuca idahoensis M. A. Baker 1979-6-27 916 Humboldt S facing ridgeside Comment
Read comments
Feb 15 2013
  RSA12524  Festuca idahoensis C. B. Wolf 1934-7-3 5912 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  RSA728074  Festuca idahoensis Gary D. Wallace 1979-6-24 1862 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC180494  Festuca idahoensis Joseph P. Tracy 1913-6-20 4239 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  HSC58759  Festuca occidentalis Overton, Butler 1979-7-26 9993 Humboldt Near Willow Creek 1341 Comment
  HSC63851  Festuca occidentalis M. A. Baker 1979-6-29 963 Humboldt Hopkin's Creek. 750 Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  UC70924  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5427 Humboldt near Hubbards Comment
  CAS-BOT-BC278959  Festuca rubra Richard W. Pohl 1963-6-2 9452 A Humboldt Sea beach, Trinidad Beach State Park Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  UC187116  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Humboldt Bay Comment
  UC1103707  Festuca subulata Joseph P. Tracy 1913-6-20 4215 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD66495  Festuca subuliflora Harley P. Chandler 1901-5-1 1184 Humboldt Humboldt Bay. 30 Comment
  HSC36257  Foeniculum vulgare John Rehling 1974-8-3 17 Humboldt Growing along side of old Hwy 299 in disturbed area Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  CHSC32839  Fragaria chiloensis Lora Anderson 1981-4-26 7 Humboldt Ca. 5 m n on Clam Beach Rd. 0.5 km e of Hwy. 101. 9.5 mi n of Arcata, along roadsides. 0 Comment
  HSC18622  Fragaria chiloensis D. B. Bader 1963-2-17 14 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  CAS-BOT-BC457923  Fragaria vesca subsp. californica Doris K. Kildale 1926-3-23 1613 Humboldt Alton Hill Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  CAS-BOT-BC59964  Frangula purshiana W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC59967  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  HSC39943  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt 3 mi. W of Arcata. Comment
  HSC15541  Fritillaria affinis Elrid H. Spinas 1948-6-16 68 Humboldt Horse Mtn. Comment
  HSC15542  Fritillaria affinis Paul Shields May 1955 Humboldt Patricks Point State Park Comment
  HSC65470  Fritillaria affinis M. A. Baker 1980-6-8 1900 Humboldt Near Buck Flat. 1554 Comment
  UC1197623  Fritillaria affinis Joseph P. Tracy 1936-7-7 16042 Humboldt Grouse Mountain 1524 Comment
  HSC30177  Fritillaria purdyi Thomas W. Nelson 1974-5-7 1232 Humboldt Beside airstrip at Kneeland Prairie Comment
  UC176063  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3938 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 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
  HSC99414  Galium aparine K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 63 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
  JEPS6589  Galium aparine Lincoln Constance 1934-5-24 629 Humboldt s slope of Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  UC175731  Galium aparine Joseph P. Tracy 1913-6-20 4235 Humboldt lower foothills of nw slope of mt Northern Coast Ranges, Buck Mountain 762 Comment
  JEPS6512  Galium bifolium Joseph P. Tracy 1933-7-16 12778 Humboldt near McKay Camp; South Fork Mt. 1676 Comment
  UC602510  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt exposed places near Ranger Station; Trinity Summit 1828 Comment
  UC416634  Galium bolanderi Harley P. Chandler 1901-6-12 1452 Humboldt Bluff Creek North Coast Ranges, Klamath River 304 Comment
  UC602507  Galium bolanderi Joseph P. Tracy 1927-5-15 8043 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC19807  Galium californicum subsp. californicum Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3849 Humboldt E of Bridgeville, 4.4 mi. on Hwy. 36 to Dinsmore 457 Comment
  JEPS52824  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3851 Humboldt 11.6 mi w Bridgeville (on Hwy 36 to Dinsmores, floor of valley); Larrabee Valley 716 Comment
  UC1225915  Galium muricatum Joseph P. Tracy 1942-7-1 17359 Humboldt opposite Buck Mountain (along river); Van Duzen River, Dinsmore's 762 Comment
  JEPS25694  Galium parisiense P. C. Hutchison 1961-5-22 2025 Humboldt ca 9.1 mi ne Klamath River bridge at Weitchpec; Klamath River canyon Comment
  HSC98666  Galium triflorum Cara Witte 2007-7-2 398 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1589 Comment
  HSC8391  Garrya elliptica D. E. Anderson 1962-1-4 1908 Humboldt Lanphere's Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 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
  UCR178955  Garrya elliptica R. G. Swinney 1968-4-13 245 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  CAS-BOT-BC182145  Garrya fremontii L. B. Kildale 1931-10-1 s.n. Humboldt Bug Creek, Caparall Mt. 1097 Comment
  CAS-BOT-BC182149  Garrya fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS66730  Garrya fremontii Lincoln Constance 1934-6-19 907 Humboldt near summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 914 Comment
  UC668299  Garrya fremontii Joseph P. Tracy 1935-7-29 14342 Humboldt Trinity Summit; near ranger station 1828 Comment
  CAS-BOT-BC56297  Gaultheria ovatifolia R. Bacigalupi; L. Constance; J. P. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3413 Humboldt Meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1432 Comment
  HSC103127  Gaultheria ovatifolia M. Mesler 2009-7-31 811 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  HSC48798  Gaultheria ovatifolia Brad Klipfel 1974-9-17 583 Humboldt W of Friday Ridge above the E Fork of Willow Creek Comment
  CAS-BOT-BC58907  Gaultheria shallon Carl B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weithchpec. 304 Comment
  CHSC24746  Gaultheria shallon G. Strang 1976-4-11 9 Humboldt All along e side of U.S. 101 ca. 2 mi s of Orick. 9 Comment
  HSC12945  Gaultheria shallon Steve Dorei 1970-10-9 30 Humboldt Arcata, near NE entrance to Wildlife building on Humboldt State University campus Comment
  HSC31810  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to Hwy. 101 rest stop, ca. 3 mi. N of Trinidad Comment
  HSC37335  Gaultheria shallon Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 480 Humboldt Along Lost Man Creek. 38 Comment
  HSC7814  Gaultheria shallon Neuns 1950-10-9 136 Humboldt 2 mi. W of Thorne 335 Comment
  HSC54658  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9877 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC55224  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-8-2 12402 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1196968  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1926-6-27 7687 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  JEPS27606  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC217395  Gentiana affinis var. ovata L. R. Abrams 1916-7-20 6145 Humboldt Eureka Comment
  CAS-BOT-BC217409  Gentiana plurisetosa E. V. Jotter 1912-10-1 247 Humboldt Trinity Summit, Trinity Forest 1524 Comment
  SD42345  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon; south side along Redwood Highway. 6 Comment
  UC153981  Gentiana sceptrum J. P. Tracy 1906-7-1 2516 Humboldt immediately vicinity Eureka 0 Comment
  UC1198643  Gentiana sceptrum Joseph P. Tracy 1938-9-25 16166 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC1197408  Geranium dissectum Joseph P. Tracy 1934-6-28 13266 Humboldt s end Humboldt Vay; Salmon Creek Valley 9 Comment
  UC198601  Geranium dissectum Joseph P. Tracy 1916-5-31 4697 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  CAS-BOT-BC226150  Gilia capitata subsp. pacifica H. E. Parks; J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  HSC90657  Gilia millefoliata Gail Newton 1982-5-5 3541 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC908974  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt near Samoa (sand dunes, on Humboldt Bay); Northern Coast Region, on Humboldt Bay, nr Samoa 6 Comment
  HSC100595  Gilia tenella Carl C. Marshall 469 Humboldt Near Garberville. Comment
  UC169034  Githopsis specularioides Joseph P. Tracy 1908-6-9 2655 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM208979  Githopsis specularioides Lincoln Constance 1934-6-15 819 Humboldt Grasshopper Pk.; Bull Creek watershed, Humboldt Redwood Park. 976 Comment
  UC1191701  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1201 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  CAS-BOT-BC218432  Glehnia littoralis subsp. leiocarpa Milo S. Baker 1927-8-16 2449 a Humboldt Near beach, Samoa Comment
  HSC46969  Glehnia littoralis subsp. leiocarpa J. P. Smith, Thomas W. Nelson 1977-6-30 9211 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC74696  Glyceria elata Gail Newton 1981-7-23 2286 Humboldt Near Bug Creek Butte. 1350 Comment
  RSA624789  Glyceria fluitans Gordon Leppig, Sylvia Leppig 1999-4-24 1125 Humboldt Arcata, Alder Grove Pond. 18 Comment
  HSC40385  Glyceria striata Thomas W. Nelson, James Nelson 1976-7-28 3078 Humboldt W of Alder Springs. 1524 Comment
  SEINET11678065  Glyceria striata H. P. Chandler 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  RSA168834  Gnaphalium canescens subsp. thermale Joseph P. Tracy 1942-8-30 17303 Humboldt Humboldt County: Trinity River Valley, at Willow Creek. 152 Comment
  UCD132451  Gnaphalium palustre James Payne Smith Jr. 1976-10-30 8995 Humboldt Mad River, east of Essex Lane exit. Comment
  HSC44322  Goodyera oblongifolia D. L. Goforth 1977-4-23 5 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  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
  HSC83033  Grindelia hirsutula A. L. Eicher 1985-8-17 1987 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UC204829  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt near Garberville (in dry field) 121 Comment
  UCR48594  Grindelia stricta R. D. Goeden, Don W. Ricker 1987-9-2 870902- 14 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  OBI16402  Grindelia stricta var. stricta Carl B. Wolf 1937-9-12 9333 Humboldt Humboldt bay, 1 mi S of Arcata on road to Eureka 3 Comment
  HSC75691  Hackelia bella Bill Copeland 1980-6-26 302 Humboldt Near Murphy Meadow 914 Comment
  HSC57669  Hackelia micrantha G. L. Clifton, Griswold 1979-7-25 10854 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC3687  Hastingsia alba H. N. Bolander 1860-1-1 6559 Humboldt Red Mountains Comment
  UC630631  Hedera helix Joseph P. Tracy 1939-10-15 16519 Humboldt Van Duzen River Blue Slide; , Blue Slide 91 Comment
  CAS-BOT-BC306611  Helenium bigelovii Paul F. Covel 1937-7-14 1047 Humboldt Loleta Comment
  HSC58152  Helenium bigelovii G. L. Clifton, Griswold 1979-8-2 12204 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC76206  Helenium bigelovii Overton, Butler 1979-8-2 12532 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS35023  Helenium bigelovii Joseph P. Tracy 1937-8-12 15627 Humboldt Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  OBI16347  Helenium bigelovii Joseph P. Tracy 1950-7-16 11686 Humboldt Parks Place, 2 mi N of Trinidad Comment
  CAS-BOT-BC309412  Helenium puberulum Alice Eastwood 1921-7-21 10666 Humboldt Vanduzen [Van Duzen] River Comment
  HSC53816  Hemizonella minima Griswold, Butler 1979-7-10 6253 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  POM160904  Hemizonia clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Trinity River Valley, near the South Fork. Northern Coast Ranges. 305 Comment
  CAS-BOT-BC306037  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  CAS-BOT-BC309999  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-22 4752 Humboldt 11 miles from Blocksburg on road to Bridgeville Comment
  JEPS28965  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt n slope Buck Mountain Comment
  UCD132992  Hemizonia congesta subsp. tracyi R. N. Raynor 1935-1 s.n. Humboldt above Fort Seward. 762 Comment
  JEPS14232  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  HSC38910  Heracleum maximum J. P. Smith 1970-6-7 3801 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  UCSB25051  Heracleum maximum Keefe, Joseph 1967-7-8 Humboldt Brushy roadside, junction crannell Road and Little River Drive, north of Eureka 6 Comment
  RSA181711  Hesperolinon micranthum Joseph P. Tracy 1911-7-4 3290 Humboldt West side of Trinity River, near Willow Creek. Comment
  UC198602  Heteromeles arbutifolia Miss Landergen Dec 1916 Humboldt Fort Seward; Northern Coast Ranges 91 Comment
  CAS-BOT-BC311078  Heterotheca oregona var. rudis Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CAS-BOT-BC311082  Heterotheca oregona var. rudis L. R. Abrams 1916-7-11 6066 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  JEPS2423  Heterotheca oregona var. rudis W. L. Jepson 1932-7-25 16398 Humboldt Old Grant Camp Eel River Comment
  HSC70966  Heuchera micrantha Gail Newton 1980-7-15 1582 Humboldt Near Sims Mtn. 1311 Comment
  HSC45609  Heuchera micrantha Diane L. Reed 1978-5-7 66 Humboldt E fork of Willow Creek, 34 mi. from US 101 on state Hwy. 299 Comment
  UC902002  Heuchera micrantha var. diversifolia Joseph P. Tracy 1947-5-10 17682 Humboldt Garberville, near airport Garberville 152 Comment
  CAS-BOT-BC312393  Hieracium albiflorum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC72677  Hieracium albiflorum J. P. Smith 1977-7-3 9241 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  UC1199465  Hieracium albiflorum Joseph P. Tracy 1935-7-28 14331 Humboldt Head of Devil's Hole Trinity Summit 1828 Comment
  UC582413  Hieracium albiflorum Joseph P. Tracy 1930-7-16 8915 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC312396  Hieracium albiflorum Henry M. Pollard 1947-9-1 s.n. Humboldt Naer summit of Somes Mountain, Orleans region 1219 Comment
  HSC44097  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3706 Humboldt Beside road 2S08 at Alder Spring 1585 Comment
  HSC57131  Hieracium greenei Overton, Butler 1979-7-25 9903 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC1199468  Hieracium scouleri Joseph P. Tracy 1937-7-29 15592 Humboldt w slope near the top South Fork Mountian (at Hyampom Trail); South Fork Mountain, Hyampom Trail 1676 Comment
  UC39802  Hierochloe occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5424 Humboldt near Hubbards Station Comment
  HSC49817  Hippuris vulgaris R. York 1979-4-16 237 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  UC198615  Hippuris vulgaris Joseph P. Tracy 1917-5-30 4807 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  UC275351  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  HSC37948  Holcus lanatus Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  POM203237  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  CAS-BOT-BC149896  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  CAS-BOT-BC149903  Holodiscus discolor L. R. Abrams 1918-6-16 7147 Humboldt Willow Creek Comment
  CAS-BOT-BC149906  Holodiscus discolor Alice Eastwood 1921-7-21 10651 Humboldt Carlotta Comment
  HSC48817  Holodiscus discolor Brad Klipfel 1973-7-31 231 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA183590  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  UC902139  Holodiscus discolor Joseph P. Tracy 1947-8-24 17906 Humboldt Trinity Summit near Box Camp; Trinity Summit 1463 Comment
  HSC102138  Holodiscus discolor var. discolor M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1042 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC10162  Hordeum brachyantherum C. E. Fellows 1965-5-18 85 Humboldt 50 yds. E of intersection of Bayside Cutoff and Hwy. 101 Comment
  HSC89903  Hordeum brachyantherum Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC1103747  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-7-16 8251 Humboldt mouth of Elk River 3 Comment
  HSC102700  Hordeum marinum subsp. gussoneanum J. P. Smith 2013-6-16 13727 Humboldt Along State Route 36, just west of the 31.40 highway sign (milepost). 757 Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  HSC26777  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 464 Humboldt 915 Comment
  UC589873  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt lower nw slope Buck Mountain; South Fork Pk Quad., lower nw slope Buck Mountain 792 Comment
  UC14220  Horkelia californica subsp. dissita Chestnut and Drew 1888-5-1 Humboldt Grouse Creek Comment
  UC1222320  Horkelia californica subsp. dissita Joseph P. Tracy 1950-7-6 19018 Humboldt 3 mi s Burr Valley (High meadow); Buck Mountain 1158 Comment
  UC659403  Horkelia tridentata subsp. flavescens Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2613 Humboldt near Eureka; Larrabee Valley 762 Comment
  HSC96225  Horkelia tridentata var. flavescens Eric Schori, Kazuyuki Ishimaru 2005-6-24 15 Humboldt Titlow Hill Rd. S of Hwy. 299, Buck Flat 1595 Comment
  SD53242  Hosackia stipularis Darley F. Howe 1962-5-22 Humboldt 4.3 miles east of Orick on Bald Mountain Road 609 Comment
  SBBG64581  Hydrocotyle ranunculoides A. Keedy 1988-9-20 13 Humboldt Arcata Salt Marsh Project Comment
  UC1400341  Hydrocotyle ranunculoides Robert F. Thorne and P. Everett 1965-8-9 35316 Humboldt Clam Beach Co. Park 3 Comment
  UC642326  Hydrocotyle ranunculoides Joseph P. Tracy 1934-7-2 13288 Humboldt mouth of Little River 3 Comment
  HSC95387  Hydrocotyle ranunculoides Andrea Pickart 2002-7-19 186 Humboldt Arcata Marsh in Log Pond 10 Comment
  JEPS1632  Hydrophyllum fendleri var. albifrons Mary H. Manning 1901-6-25 Humboldt Trinity Summit; n Humboldt County Comment
  HSC96244  Hydrophyllum occidentale April A. Allard, Gregory O'Connell 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF 1 1402 Comment
  HSC97448  Hydrophyllum occidentale C. Witte 2007-5-22 84 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  UC35519  Hydrophyllum occidentale W. C. Blasdale 1896-6-6 Humboldt McBride's Comment
  HSC38628  Hydrophyllum tenuipes D. E. Anderson, J. P. Smith 1971-6-18 - 1100 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  HSC58119  Hypericum anagalloides G. L. Clifton, Griswold 1979-8-1 12088 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC668261  Hypericum anagalloides Joseph P. Tracy 1933-8-6 12945 Humboldt French Camp Ridge 1066 Comment
  UC668262  Hypericum anagalloides Joseph P. Tracy 1936-6-28 15029 Humboldt Lake Prairie at Bald Mt. 1066 Comment
  JEPS66833  Hypericum perforatum Lincoln Constance 1934-5-26 677 Humboldt w. end of Dyerville Bridge; S. Fork Eel R., Bull Creek Region 45 Comment
  UC1137468  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
Read comments
Sep 12 2009
  CAS-BOT-BC312887  Hypochaeris glabra Alice Eastwood 1923-8-16 12326 Humboldt Carlotta Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  HSC27043  Hypochaeris radicata Brad Klipfel 1973-8-23 285 Humboldt Near Lazy J Ranch on Fickle Hill Rd. Comment
  NY177411  Iliamna rivularis var. rivularis H. N. Mozingo 1976-6-28 76100 Humboldt Outside of Humboldt National Forest, at roadside near Solid Silver Creek 1691.6 Comment
Read comments
Feb 27 2012
  HSC48816  Ipomopsis aggregata Brad Klipfel 1973-7-31 230 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1541562  Ipomopsis aggregata W. K. Parks July 1933 1409 Humboldt South Fork Mtn Comment
  JEPS86128  Iris douglasiana Wayne Roderick 1966-5-5 Humboldt ca 2 mi e Carlotta 30 Comment
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  HSC100379  Iris macrosiphon J. Moore 2007-6-13 Humboldt Horse Mountain Botanical Area, off Hwy. 1. 1220 Comment
  UC719144  Iris macrosiphon F. G. Meyer 1938-4-6 1390 Humboldt about 10 mi n Garberville Comment
  RSA135821  Iris purdyi E. K. Balls 1957-5-25 22601 Humboldt 0.2 mile west of Trinity-Humboldt County line, along State Highway 36 732 Comment
  RSA135934  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17195 Humboldt 6.3 miles east of Bridgeville along Highway 36 Comment
  RSA137352  Iris purdyi Lee W. Lenz, E. K. Balls 1955-5-16 20744 Humboldt 2.7 miles northwest of Ettersburg along old Coast Road, Garbersville to Ferndale 457 Comment
  HSC99342  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-24 467 Humboldt Near Orleans 143 Comment
  HSC44321  Iris tenuissima Brad Klipfel 1975-6-17 668 Humboldt Horse Mtn. Comment
  HSC49177  Iris tenuissima J. O. Sawyer 1977-4-23 2847 Humboldt Bluff Creek Campground Comment
  HSC6800  Isatis tinctoria D. E. Anderson 1965-5-1 3569 Humboldt Slides along Hwy. 96 and Klamath River, 3-4 mi. E of Weitchpec Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  HSC25051  Isatis tinctoria D. E. Anderson 1972-6-11 Humboldt Barry Summit Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  RSA246917  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35215 Humboldt Samoa Peninsula: near sea level Comment
Read comments
Sep 12 2018
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  CHSC56526  Jaumea carnosa L. P. Janeway 1983-9-24 705 Humboldt Sand pit next to Big Lagoon. 3 Comment
  UCR48590  Jaumea carnosa R. D. Goeden, Don W. Ricker 1987-9-2 870902- 18 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  UC184199  Juncus ambiguus Joseph P. Tracy 1912-6-16 3699 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region, , Hookton 0 Comment
  HSC103408  Juncus bolanderi Ivy Watson 2008-10-5 34 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  RSA246797  Juncus breweri Robert F. Thorne, Percy C. Everett 1965-8-5 35161 Humboldt Samoa Dunes. 3 Comment
  RSA18013  Juncus bufonius Carl B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  HSC23143  Juncus bufonius Norman Dennis 1965-6-19 128 Humboldt 0.25 mi. S and 1 mi. E of jct. of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 3 mi. SE of Kneeland 793 Comment
  HSC98006  Juncus covillei Cara Witte 2007-7-12 516 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  RSA246800  Juncus effusus subsp. pacificus Robert F. Thorne, Percy C. Everett 1965-8-5 35143 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  BLMAR312  Juncus ensifolius Jennifer Anthony-Wheeler July, 2002 312 Humboldt South Spit, near trail to salt marsh 6 Comment
  HSC99545  Juncus exiguus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 210 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC167841  Juncus falcatus subsp. sitchensis Schmidt Humboldt Humboldt Bay Comment
  HSC45545  Juncus lescurii J. P. Smith 1971-10-6 4975 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC90686  Juncus lescurii Gail Newton 1982-5-31 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC90688  Juncus lescurii Gail Newton 1982-5-31 3563 Humboldt Elk River Wildlife Area, Eureka Comment
  SEINET3879721  Juncus lescurii James P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  UC184180  Juncus tenuis Joseph P. Tracy 1912-7 3749 Humboldt Eureka Northern Coast Region, Lucas Prairie 0 Comment
  CAS-BOT-BC235888  Keckiella corymbosa L. Constance 1936-7-17 1807 Humboldt Open bank between Dyerville & Bull Creek Flat, Humboldt State Redwood Park Comment
  UC213499  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek (Klamath River); Northern Coast Ranges 152 Comment
  UC1222816  Kickxia elatine Joseph P. Tracy 1951-7-14 19623 Humboldt near Willow Creek (borders of Lack Pond); Lack Pond Comment
  UC302178  Lactuca biennis Joseph P. Tracy 1926-7-18 7746 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley, Kirkham Creek 182 Comment
  UC552225  Lactuca biennis Joseph P. Tracy 1935-7-21 14118 Humboldt mouth Bremer Creek (near Willow Creek); Trinity River Valley 152 Comment
  UC552313  Lactuca biennis Joseph P. Tracy 1934-8-14 13583 Humboldt near Myers; North Coast Ranges 60 Comment
  HSC14213  Lamium purpureum R. C. Drewien 1963-3-24 7 Humboldt McKinleyville, Turner Dr. and Mill Creek crossing Comment
  HSC34652  Lamium purpureum A. M. Montalvo 1975-4-10 205 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  CAS-BOT-BC337869  Lapsana communis Carl B. Wolf 1927-8-22 801 Humboldt Big Lagoon Comment
  RSA256583  Lapsana communis J. O. Sawyer 1970-6-24 2269 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  UC166288  Lasthenia californica subsp. californica Joseph P. Tracy 1908-6-8 2628 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC582761  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 A Humboldt valley South Yager Creek 762 Comment
  UC582762  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  HSC14735  Lathyrus japonicus R. C. Hoover 1965-5-18 57 Humboldt Clam Beach Comment
  RSA406672  Lathyrus littoralis J. P. Smith, T. W. Nelson 1977-6-30 9217 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC162839  Lathyrus littoralis Joseph P. Tracy 1906-5-13 2451 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC82184  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1977-6-15 3440 Humboldt Along old road to ski area 1372 Comment
  HSC49176  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1977-4-24 2849 Humboldt 2 mi. E of State Route 96 on road to Fish Lake (13N01) Comment
  HSC75477  Lathyrus polyphyllus J. O. Sawyer 1980-7-18 3624 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA64949  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19094 Humboldt 3 miles W of Willow Creek, near Highway #299. Comment
  UCR84790  Lathyrus tingitanus Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  UC931682  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt ca 15 mi e Blue Lake (along Highway 299) Comment
  UC1222397  Lathyrus vestitus Joseph P. Tracy 1949-6-20 18316 Humboldt 5 mi se Arcata; Fickle Hill 609 Comment
  HSC76516  Lathyrus vestitus var. ochropetalus Denis Kearns 1981-7-8 163 Humboldt Near Bluff Creek 622 Comment
  HSC89532  Layia carnosa C. K. Meyers 1990-6-13 Humboldt South Spit, west side of Humboldt Bay, on bay side of road 3 Comment
  RSA92250  Layia carnosa F. W. Peirson 1923-7-11 3905 Humboldt 18 miles north of Eureka Comment
  UC204699  Layia gaillardioides Joseph P. Tracy 1918-7-1 4982 Humboldt Cape Mendocino 3 Comment
  SEINET3164358  Ledum glandulosum N. Dennis 1965-6-3 143 Humboldt Big Lagoon County Park; southwest corner of Big Lagoon Comment
  UC1101254  Lemna minuscula Malcolm A. Nobs, S. Galen Smith 1949-8-9 1237 Humboldt on s side of town of Blue Lake Blue Lake Comment
  UC1103517  Lemna turionifera Joseph P. Tracy 1915-9-5 4667 Humboldt between Buckspot and Elk River (at Eureka); Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC89076  Lepidium didymum K. L. Chambers; Ron Tyrl 1969-5-25 2927 Humboldt Strong's Station ca. 6.5 mile east of Carlotta on Highway 36. Comment
  UCD115360  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CAS-BOT-BC12876  Lepidium strictum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  OBI11411  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt Near Harris (2 miles north) 610 Comment
  OBI28618  Lessingia nemaclada J. & B. Semple, B. Semple 1981-8-21 5692 Humboldt hwy 36, 4 mi S of Mad river park Comment
  POM247188  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  HSC48613  Leucanthemum vulgare Mark Flippo 1978-5-18 63 Humboldt Arcata, US 101 Comment
  HSC3106  Leucojum aestivum M. S. Miller 1965-3-12 2 Humboldt Arcata, 317 Laurel Dr. Comment
  HSC48387  Lewisia leeana Brad Klipfel 1973-6-10 111 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC102127  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1031 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC32134  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA246911  Leymus mollis subsp. mollis R. F. Thorne, P. Everett 1965-8-5 35159 Humboldt Samoa Dunes 3 Comment
  UCD86624  Leymus triticoides V. L. Baker 1920-8-1 s.n. Humboldt Grizzly Bluff. Comment
  HSC65840  Lilium bolanderi Gail Newton 1980-6-16 161 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC508401  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8297 Humboldt Bluffs north of Big Lagoon Comment
  UC1035026  Lilium columbianum A. M. Vollmer and L. Beane Jul 1953 121 Humboldt Comment
  CAS-BOT-BC130642  Lilium kelloggii 1942-7-9 s.n. Humboldt Alder Point Comment
  CHSC98393  Lilium kelloggii Dean Wm. Taylor 2004-6-23 19116 Humboldt Fickle Hill Road 1.3 miles north of junction Butler Valley road. 731 Comment
  UC1334273  Lilium kelloggii Albert M. Vollmer and Ira L. Wiggins 1940-7-4 6 Humboldt 15 mi. w. Weitchpec (on burned-over ridge on Orick-Weitchpec rd.) 944 Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  SEINET3992036  Lilium occidentale Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 Humboldt Comment
  UC177231  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  SEINET3992214  Lilium pardalinum Unknown 1937-7-24 15533 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  HSC77937  Lilium pardalinum subsp. vollmeri D. K. Imper 1982-7-23 1495 Humboldt Near Onion Lake. 1371 Comment
  JEPS62029  Lilium rubescens Mrs. M. H. Manning 1901-7-27 319 Humboldt Bald Hills Comment
  UC17908  Limnanthes douglasii J. P. Tracy 1899-5-7 31 Humboldt Eureka Comment
  BLMAR501  Limnanthes douglasii Jennifer Wheeler 2009-4-30 501 Humboldt King range, Hidden Valley trail; trail forward Comment
  HSC23110  Limnanthes douglasii Norman Dennis 1965-6-11 113 Humboldt 1/4 mi. S and 1 mi. E of the junction of Barry Ridge Rd. and the Eureka-Bridgeville county road, along Ashfield Ridge Rd. About 5 mi. SE of Kneeland 793 Comment
  OBI12589  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt S Fork Eel River. Upper Look Prairie 366 Comment
  UC673262 Image available Limnanthes douglasii Lincoln Constance and Reed C. Rollins 1942-5-21 3000 Humboldt two mi n Harris; Klamath-Siskiyou Region; Siskiyou Region, Humboldt Co. 762 Comment
  UC971842  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-30 1282 Humboldt e side of road to Fortuna 4.9 mi from Bridgeville Comment
  UC1198540  Linanthus bolanderi Joseph P. Tracy 1914-7-5 4566 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  CDA6373  Linaria vulgaris E. C. Whitney 1964-8-12 Humboldt Zuber property, Orick. 0 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
  UC1239561  Linnaea borealis var. longiflora Joseph P. Tracy 1926-6-6 7579 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC23114  Linum bienne Norman Dennis 1965-6-8 111 Humboldt 0.25 mi. S and 1 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county road, along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  UCSB30603  Linum bienne Edwards, David 1974-8-12 Humboldt North side of 7th. St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  JEPS37740  Lithocarpus densiflorus W. L. Jepson 1902-7-14 2024 A Humboldt Hupa Comment
  UC1193053  Lithocarpus densiflorus P. Zinke 1950-8-3 146 Humboldt 3 mi s Harris Post Office 914 Comment
Read comments
Nov 28 2009
  SACT002878  Lithocarpus densiflorus D. McIntosh, L. Sanny 1959-3-1 Humboldt Densely covered hillside Comment
  UC1225786  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18135 Humboldt 2 mi e Grove's Summit; Trinity Summit 1524 Comment
  HSC102135  Lithophragma campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1039 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC435646  Lithophragma heterophyllum Harold E. Parks; Joseph P. Tracy 1942-5-16 11558 Humboldt Vicinity of Garberville 152 Comment
  HSC73961  Lithophragma heterophyllum Gail Newton 1980-6-7 130 Humboldt Near Brush Mtn. 1128 Comment
  HSC61764  Logfia gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan; 1 mi. above Pecwan on old road, S side Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  SEINET12118791  Lomatium dasycarpum J. P. Tracy 1950-1 19000 Humboldt on Albee Road, 2 mi S of Burr Valley Comment
  SEINET3132617  Lomatium dasycarpum D. E. Anderson 1965-5-1 3588 Humboldt dry highway backslope along Hw. 96, 3-4 south of Weitchpec Comment
  HSC55593  Lomatium dissectum var. dissectum G. L. Clifton, Terry Griswold 1979-7-26 9367 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC21516  Lomatium dissectum var. dissectum H. E. Parks, J. P. Tracy 1935-6-16 11278 Humboldt Buck Mtn. 915 Comment
  UC642327  Lomatium dissectum var. dissectum Joseph P. Tracy 1928-6-24 8460 Humboldt Valley of S. Yager Creek 762 Comment
  HSC55320  Lomatium macrocarpum Terry Griswold, Butler 1979-7-10 7117 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC40717  Lomatium tracyi Thomas W. Nelson, Barbara Kelly 1977-6-15 3443 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  HSC40704  Lomatium tracyi Barbara Kelly, Thomas W. Nelson 1977-6-15 503 Humboldt .25 mi. past Horse Mountain Rd., along dirt road just below road to ski area 1402 Comment
  JEPS14166  Lomatium utriculatum Lincoln Constance 1934-5-29 718 Humboldt Bull Creek Region, S. Fork Eel R., Upper Look Prairie 365 Comment
  UC441279  Lonicera conjugialis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5861 Humboldt Trinity Summit Comment
  CAS-BOT-BC241408  Lonicera etrusca David D. Keck 1948-7-1 5975 Humboldt South side of Big Lagoon Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  HSC99849  Lonicera hispidula var. vacillans T. Jimerson, J. Pageau 1979-5-24 468 Humboldt Close to the town of Orleans. 2257 Comment
  UC602569  Lonicera hispidula var. vacillans Joseph P. Tracy 1928-7-1 8479 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA239767  Lonicera involucrata Larry E. DeBuhr 1973-4-23 s.n. Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UCSB15522  Lonicera involucrata Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC241484  Lonicera involucrata var. ledebourii Doris K. Kildale 1925-9-26 1363 Humboldt Mouth of Mad River - coast Comment
  CAS-BOT-BC241491  Lonicera involucrata var. ledebourii C. Hart Merriam 1922-7-4 s.n. Humboldt Fortuna Comment
  SBBG69576  Lonicera involucrata var. ledebourii R. Hartwell 1938-8-6 Humboldt near Arcata Comment
  RSA89763  Lonicera ledebourii P. A. Munz 1954-7-25 19879 Humboldt behind dunes. Comment
  CAS-BOT-BC200914  Lotus Milo S. Baker 1927-8-21 2468 a Humboldt Near Bald Mt. Comment
  SEINET12154182  Lotus aboriginus J. P. Tracy 1933-1 12375 Humboldt 1miW of Gasquet along the Smith River at the Hwy bridge Comment
  HSC46979  Lotus corniculatus J. P. Smith, Thomas W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just E of the drag strip. Comment
  RSA21083  Lotus denticulatus Carl B. Wolf 1937-6-19 8911 Humboldt Van Duzen River, .3 mi. above Bridgeville. 122 Comment
  JEPS55451  Lotus formosissimus W. L. Jepson 1902-6-24 1922 Humboldt Eureka to Arcata Comment
  HSC98242  Lotus humistratus P. N. Slattery 1963-5-18 14 Humboldt Clam Beach Comment
  UC1197292  Lotus humistratus Joseph P. Tracy 1931-6-14 9575 Humboldt Alton, along Van Duzen River Northern Coast Ranges, Van Duzen River 30 Comment
  JEPS19455  Lotus micranthus Joseph P. Tracy 1917-5-30 4795 Humboldt Northern Coast Region, mouth of Little River Little River; Northern Coast Region, Little River 6 Comment
  JEPS55502  Lotus micranthus Lincoln Constance 1934-5-23 610 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  SEINET12154222  Lotus nevadensis var. douglasii H. P. Chandler 1901-1 1487 Humboldt Klamath R 427 Comment
  JEPS55784  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  SEINET3560045 Image available Lotus stipularis var. subglaber Joseph P. Tracy 1914-7-5 4576 Humboldt Bald Mountian, between High Prairie and Snow Camp 1219 Comment
  RSA94105  Luina hypoleuca var. californica F. W. Peirson 1926-7-12 7026 Humboldt Humboldt County: Klamath River near Weitchpec Comment
  UC503018  Lupinus Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  SEINET10936548  Lupinus adsurgens var. adsurgens Chestnut 1888-7-21 CHESTNUT s.n. Humboldt Type photo. W side south fork mountain. Comment
  UC503004  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC503016  Lupinus albifrons Joseph P. Tracy 1929-4-28 8552 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCSB26618  Lupinus arboreus Havlik, Neil 1968-8-21 Humboldt Along U.S. Highway 101; west of Arcata Airport 6 Comment
  SEINET10488497  Lupinus arboreus Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2501 Humboldt In the vicinity of a state park on the beach opposite mckinleyville. Vast Colony of yellow lupinus arboreus 3 Comment
  SEINET5327650  Lupinus arboreus J. Tracy 1910-5-8 3134 Humboldt Immediate vicinity of Eureka 152 Comment
  RSA407035  Lupinus arboreus var. arboreus M. B. Dunkle 1936-8-18 4820 Humboldt Moonstone Beach. Comment
  HSC31789  Lupinus bicolor Donald Spalinger 1974-4-25 25 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  HSC98930  Lupinus bicolor Cara Witte 2007-6-7 224 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  HSC32075  Lupinus bicolor Glenn McGourty 1974-4-27 35 Humboldt Along side of Mattole River Comment
  HSC58603  Lupinus latifolius G. L. Clifton, Griswold 1979-7-25 10856 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC76189  Lupinus latifolius Overton, Butler 1979-7-24 9779 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS65284  Lupinus latifolius Joseph P. Tracy 1923-6-25 6376 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SBBG3657  Lupinus latifolius var. viridifolius H. and M. Dearing 1939-5-24 3416 Humboldt 5 mi S of Alton Comment
  UC170164  Lupinus littoralis Joseph P. Tracy 1912-7-7 3745 Humboldt near mouth Elk River; Northern Coast Region, region about Humboldt Bay 0 Comment
  RSA32650  Lupinus luteolus Doris K. Kildale 1926-7-11 2347 Humboldt Bear River at Capetown. Comment
  BLMAR212  Lupinus microcarpus var. densiflorus Jennifer Anthony-Wheeler 1996-7-9 212 Humboldt Pilot ridge., open or distrubed areas 1280 Comment
  JEPS65388  Lupinus nanus Lincoln Constance 1934-5-29 730 Humboldt Upper Look Prairie South Fork Eel River, Bull Breek Region (Bull Creek Region) 365 Comment
  UC157015  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1906-6-24 2495 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay 0 Comment
  CDA5442  Lupinus rivularis D. G. Kelch 2007-7-25 7 .503 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  JEPS65433  Lupinus rivularis Lincoln Constance 1934-5-26 675 Humboldt s end Dyerville Bridge (sand and gravel bar of South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  HSC36275  Lupinus rivularis John Rehling 1974-7-12 12 Humboldt Near the Bald Hills Rd., 3.5 mi. E of Hwy. 101 Comment
  UC503017  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 1/2 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  RSA165867  Lupinus variicolor Philip A. Munz 1963-6-19 24528 Humboldt Patrick's Point. 30 Comment
  HSC93220  Lupinus variicolor Ananda Dickie, Wendy Hooper, Rose Madrone, Kyla Waddell 1996-5-12 57 Humboldt Arcata bottoms, intersection of Janes Rd. and Jackson Ranch Rd., 200 m E of the Simpson Administration Bldg. 24 Comment
  BLMAR289  Luzula comosa Jennifer Anthony-Wheeler 2000-4-18 289 Humboldt King range, growing on rocky ridgeline, outcrop/vista in millcrk forest 402 Comment
  HSC14059  Luzula comosa R. I. Bonn 1965-5-7 31 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC75476  Luzula comosa J. O. Sawyer 1980-7-18 3623 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UCD142120  Luzula comosa R. Tofsrud 1948-9-1 s.n. Humboldt between Telton Hill and Clear Lake, on road from Horse Mt. to Grouse Mt. Comment
  CAS-BOT-BC441226  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain 1432 Comment
  HSC97961  Luzula parviflora Cara Witte 2007-6-13 258 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  SEINET3151058  Luzula subsessilis D. E. Anderson 1965-5-1 3565 Humboldt along hwy 96, 1.9 mi. N of Willow Creek Comment
  HSC62983  Lysichiton americanus David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  UC1198268  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  JEPS46466  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt Fields Ld'g Comment
  SEINET11770115  Lysichiton americanus L. S. Rose 1932-1 3241 Humboldt Eureka 3 Comment
  UC176174  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  RSA0015873  Lythrum hyssopifolia Lyman Benson 1927-7-11 61 Humboldt Weott Ranger Station. Seaward N Coast range, South Fork Eel River. 61 Comment
  HSC100370  Lythrum salicaria L. D. Hoover 1996-4-29 Humboldt Along Hwy. 36, private property (Simmons). Comment
  SBBG28041  Madia elegans L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  HSC100441  Madia filipes Carl C. Marshall Jun 1887 457 Humboldt Near Harris. Comment
  JEPS7503  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt w slope near top South Fork Mountain (at Hyampom Trail) 1676 Comment
  UC176473  Madia gracilis Joseph P. Tracy 1913-6-22 4257 Humboldt opposite Buck Mountain (in Van Duzen River Valley, Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  JEPS40333  Madia gracilis Lincoln Constance 1934-5-24 625 Humboldt s slope Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UC1052187  Madia sativa J. L. Meyer 1954-10-11 29 Humboldt 3 mi n Blocksburg; Quadrangle 29A3 457 Comment
  UC1223207  Madia sativa Joseph P. Tracy 1950-6-8 18758 Humboldt at hill leading from the coast toward Petrolia; Domingo Hill Comment
  RSA20801  Mahonia nervosa C. B. Wolf 1937-8-13 9266 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  UCD20674  Mahonia nervosa A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, Redwood National Park, Hwy 101 reroute. Comment
  HSC15593  Maianthemum dilatatum S. R. Johnson 1965-4-30 48 Humboldt 2 mi. N of Luffenholtz Beach Comment
  HSC22832  Maianthemum dilatatum C. Norman Christiansen 1964-4-15 Humboldt Arcata Community Forest Comment
  HSC54225  Maianthemum racemosum subsp. amplexicaule Griswold, Butler 1979-7-12 7290 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC58049  Maianthemum racemosum subsp. amplexicaule G. L. Clifton 1979-8-1 11908 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC511459  Maianthemum racemosum subsp. amplexicaule Huron H. Smith 1911-6-6 3795 Humboldt Field Museum of Natural History, Vances Camp 19 Comment
  HSC99006  Maianthemum racemosum subsp. amplexicaule Cara Witte 2007-6-13 259 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  RSA309620  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1983-9-3 3932 Humboldt 3,2 mi W of Klamath River bridge W of Weitchpec, along road to Orick. Comment
  SEINET12047102  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1972-1 72 -013 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  UCSB29355  Maianthemum stellatum Phelps, M. 1972-3-19 Humboldt 1.5 mi from Garberville along Old Brice- land Rd; 0.5 mi north of roadside 213 Comment
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC57530  Malus fusca Miss E. E. Tracy Nov 1901 Humboldt Eureka Comment
Read comments
Jun 17 2020
  HSC7034  Marah oregana D. B. Bader 1963-4-1 47 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC97635  Marah oregana Cara Witte 2007-6-4 181 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC79515  Marah oregana Kenneth Clark 1980-3-1 513 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 37 Comment
  HSC98545  Marah oregana Cara Witte 2008-6-2 674 Humboldt Along National Forest 1. North of Kinsey Ridge. 1291 Comment
  JEPS42487  Marah oregana W. L. Jepson 1897-7-31 14136 Humboldt De Haven to Fort Bragg Comment
  RSA424587  Marah oregana T. S. Elias, Barbara A. Elias 1987-8-24 10620 Humboldt Prairie Creek Redwoods State Park; Gold Bluffs Beach. Comment
  RSA79372  Marah oregana E. K. Balls, L. W. Lenz 1952-5-12 17199 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  JEPS65521  Medicago lupulina Lincoln Constance 1934-5-26 671 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end) 45 Comment
  UC16107  Medicago lupulina Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5532 Humboldt near Scotia Comment
  JEPS65511  Medicago polymorpha Lincoln Constance 1934-5-26 668 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek region (s end) Comment
  CAS-BOT-BC269349  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 182 Comment
  CAS-BOT-BC281321  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  UC184916  Melica harfordii Joseph P. Tracy 1912-7-26 3852 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC10370  Melica subulata E. W. Styskel 1964-4-3 59 Humboldt 0.25 mi. NE of Garbervillie Airport along Sprowl Creek Rd. Comment
  UC1152008  Melica subulata A. H. Murphy 1951-5-15 30 Humboldt 0.5 mi s South Fork of McCann Road Comment
  HSC15016  Melilotus indicus D. E. Anderson 1961-9-2 1762 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC14244  Mentha canadensis John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  UC1225833  Mentha canadensis Joseph P. Tracy 1941-8-17 16993 Humboldt borders of pond near Three Cabins (se of Butler Valley); se of Butler Valley 457 Comment
  HSC59  Mentha pulegium J. Wendell Howe 1931-6-19 Humboldt Redway Comment
  JEPS42754  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  HSC36233  Menziesia ferruginea subsp. ferruginea John Rehling 1975-5-8 63 Humboldt E of Humboldt State University Campus, Arcata Comment
  CAS-BOT-BC428712  Micranthes californica Joseph P. Tracy 1927-3-27 7851 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork. 182 Comment
  CAS-BOT-BC429181  Micranthes oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  CAS-BOT-BC322684  Microseris laciniata Lincoln Constance 1934-5-24 624 Humboldt S. slope of Lower Look Prairie, South Fork Eel River 182 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
  HSC44540  Microseris nutans Brad Klipfel 1973-7-15 158 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC34653  Microseris nutans Chesnut and Drew 1888-7-21 Humboldt w slope South Fork Mt. Comment
  HSC75455  Microsteris gracilis J. O. Sawyer 1980-7-18 3596 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC72410  Mimulus aurantiacus var. aurantiacus J. P. Smith 1973-5-26 6829 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89450  Mimulus aurantiacus var. aurantiacus P. A. Daly 1984-5-8 15 Humboldt Trinidad Head 61 Comment
  JEPS10232  Mimulus aurantiacus var. aurantiacus Lincoln Constance 1934-5-26 657 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  JEPS32498  Mimulus aurantiacus var. aurantiacus Peter H. Raven 1963-5-15 18375 Humboldt about 1.5 mi s Trinidad (Luffenholz Beach) Comment
  UC1063400  Mimulus aurantiacus var. aurantiacus A. E. Wieslander 1931-5-22 217 Humboldt hills s Ferndale; Cape Fortuna Quadrangle Comment
  UC176996  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1912-6-9 3646 Humboldt Alton Northern Coast Region 30 Comment
  UC582444  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  JEPS28968  Mimulus breweri Joseph T. Gregory 1935-7-28 792 Humboldt head Devil's Hole; Trinity Summit 1828 Comment
  HSC20709  Mimulus dentatus R. D. Zortman 1963-5-12 41 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC72408  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  JEPS22954  Mimulus dentatus Volney Rattan June 1882 Humboldt Humboldt Bay Comment
  RSA80079  Mimulus dentatus F. W. Peirson 1926-7-13 7055 Humboldt On south side of Mad River, near Blue Lake. Comment
  SEINET12269862  Mimulus guttatus J. P. Tracy 1950-1 18745 Humboldt near Capetown, Cape Ridge, 1 mi E of Cape Mendocino 152 Comment
  JEPS10794  Mimulus inodorus Lincoln Constance 1934-6-18 895 Humboldt border N. Dyerville Flat (near South Fork R.R. Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC1196812  Mimulus kelloggii Joseph P. Tracy 1922-5-29 6080 Humboldt head South Yager Creek; Northern Coast Ranges 762 Comment
  RSA535811  Mimulus kelloggii David M. Thompson 1986-3-26 856 Humboldt Somes Bar. Along Hwy 96, 100 ft S of Siskiyou Co. line; at confluence of Klamath and Salmon rivers. 61 Comment
  HSC100672  Mimulus microphyllus Carl C. Marshall Apr 1887 387 Humboldt Supply Creek, near Hoopa. Comment
  HSC56038  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11603 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC44829  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3598 Humboldt Margin of pond above Alder Springs 1585 Comment
  HSC44830  Mimulus moschatus Thomas W. Nelson, Jane Nelson 1977-7-4 3519 Humboldt Bog southwest of Alder Springs 1494 Comment
  UC582596  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15570 Humboldt halfway between Cold Springs and Blake Lookout; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC582597  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  HSC12793  Mimulus pilosus Jana Kattenhorn 1970-10-28 149 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  UC424834  Mimulus pilosus Milo S. Baker 1927-8-15 2438 f Humboldt near S. Fork Station; Eel R. Comment
  HSC56180  Mimulus primuloides var. primuloides G. L. Clifton, Griswold 1979-8-1 12095 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC668119  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  RSA249438  Minuartia nuttallii subsp. gregaria D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5605 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1103535  Minuartia pusilla Joseph P. Tracy 1904-4-24 2030 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  CAS-BOT-BC433011  Mitella diversifolia Joseph P. Tracy 1949-6-5 11654 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  HSC101619  Monardella odoratissima subsp. pallida Cara Witte 2007-6-28 390 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  SEINET12272555  Monardella villosa subsp. sheltonii H. P. Chandler 1901-1 1522 Humboldt Klamath River, Plants of the North Coast Ranges 457 Comment
  JEPS13817  Moneses uniflora Joseph P. Tracy 1926-5-22 7515 Humboldt Northern Coast Ranges, Prairie Creek Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC34369  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC36356  Montia fontana J. P. Smith 1976-2-21 8507 Humboldt Tish Tang Campground Comment
  JEPS43192  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC445162  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  CAS-BOT-BC445155  Montia parvifolia Doris K. Kildale 1926-5-27 1695 Humboldt Yager Creek, near mouth Comment
  HSC58648  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11669 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UCD86805  Muhlenbergia mexicana Joseph P. Tracy 1921-9-4 5957 Humboldt Trinity River Valley. Along Trinity River, at mouth of South Fork. 152 Comment
  UC552838  Myosotis discolor Joseph P. Tracy 1935-5-25 13847 Humboldt Fort Seward North Coast Ranges, Fort Seward 106 Comment
  HSC3737  Myosotis discolor D. E. Anderson 1963-5-25 2490 Humboldt Ca. 1 mi. S of Capetown Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  HSC3727  Myosotis sylvatica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  RSA46886  Myrica californica Doris K. Kildale 1926-3-27 1551 Humboldt Big Lagoon. Comment
  RSA46887  Myrica californica Doris K. Kildale 1926-6-18 2393 Humboldt Gold Bluffs. Comment
  RSA47091  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick s Point Comment
  SEINET516272  Myrica californica Vernon H. Oswald 1998-4-16 8913 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  UC1197941  Myrica californica Joseph P. Tracy 1930-11-2 9246 Humboldt on Eel R. above S. Fork McCann; Northern Coast Ranges, , Eel R. 60 Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  CAS-BOT-BC60347  Nasturtium officinale Doris K. Kildale 1926-8-12 2484 Humboldt Moonstone Beach near Trinidad. Comment
  UC1197901  Navarretia capillaris Joseph P. Tracy 1935-7-28 14314 1/2 Humboldt head Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  HSC97972  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-21 322 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  HSC98609  Navarretia divaricata subsp. divaricata Cara Witte 2008-6-27 759 Humboldt Approximately 2 miles north-east of intersection 5N09 and Friday Ridge Rd. 1565 Comment
  UC1198603  Navarretia intertexta Joseph P. Tracy 1906-7-4 2525 Humboldt near Carlotta (near Hydesville); Northern Coast Region 60 Comment
  HSC96932  Navarretia intertexta subsp. propinqua Elizabeth Kimbrough, Whitney Meier 2007-6-13 9 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  RSA528862  Navarretia sinistra R. Spellenberg 1990-7-10 10238 Humboldt Extreme E edge county, 11 air mi. E of Burnt Ranch at Buck Flat, at junction of USFS road 5N01 and USFS road 1, 12 mi. S of Berry Summit (on Calif. Highway 299) on USFS 1 1433 Comment
  JEPS70462  Navarretia squarrosa W. L. Jepson 1921-8-11 9416 Humboldt Big Lagoon Humboldt Coast Comment
  JEPS70472  Navarretia squarrosa Joseph P. Tracy 1921-8-21 5935 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCSB5208  Navarretia squarrosa Parks, H. 1952-07 Humboldt Trinidad Comment
  OBI22891  Navarretia squarrosa H. E. Parks, S. T. Parks 24442 ` Humboldt Trinidad, Spruce Groove. 76 Comment
  UCSB30610  Navarretia squarrosa Edwards, David 1974-7-13 Humboldt open field to SW. of intersection of Fickle Hill Rd. and Hill St; ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  UC169029  Nemacladus capillaris Joseph P. Tracy 1908-6 2842 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC1239751  Nemophila menziesii Joseph P. Tracy 1923-3-17 6158 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  CHSC97984  Nemophila menziesii var. atomaria Andrew Byers; Stuart E Richardson III 2005-6-10 9 Humboldt 7.4 mi south of Hwy 299 on NF1. Coldspring Camp. 1357 Comment
  UC1103811  Nemophila menziesii var. atomaria Joseph P. Tracy 1922-5-29 6065 Humboldt South Yager Creek Valley Northern Coast Ranges, South Yager Creek Valley 762 Comment
  UC67069  Nemophila menziesii var. atomaria H. P. Chandler 1276 Humboldt Hupa Mts. Comment
  JEPS1882  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  HSC77938  Noccaea fendleri subsp. californica Jimerson, D. K. Imper 1982-5-17 1434 Humboldt Near Ashfield Ridge. 822 Comment
  RSA176510  Noccaea fendleri subsp. glauca Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 854 Comment
  HSC99079  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-10 852 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1.5 mile from National Forest 1. Under powerlines. 1239 Comment
  RSA0013606  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-14 9353 Humboldt Town of Blue Lake. 15 Comment
  UCD127735  Oenanthe pimpinelloides Joseph P. Tracy 1950-8-18 19330 Humboldt along Blocksburg Road, near the bridge across Larrabee Creek. 457 Comment
  UCD127738  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1245403  Orobanche fasciculata Joseph T. Gregory 1935-7-30 860 Humboldt Salmon Summit. Comment
  HSC99007  Orobanche fasciculata var. franciscana Cara Witte 2008-7-14 894 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  HSC100380  Orobanche uniflora J. McRae 2010-6-23 Humboldt Swim Ridge (Black Rock Mountain West), off Ruth Rd. (CR 504) and F.S. Rd. 27N02. 1329 Comment
  UC1245410  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 814 Humboldt Head of Devil's Hole, Trinity Summit. Comment
  JEPS25708  Orobanche uniflora subsp. occidentalis P. C. Hutchison 1961-5-22 2018 Humboldt North side of Highway US 299 2.6 miles E of Berry Summit along south side of Willow Creek. Comment
  SEINET200762  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt Near top west of Water-Dog Lakes Trinity Summit. 1829 Comment
  HSC100092  Orthilia secunda Jimerson, J. Pageau 1979-6-12 538 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  HSC91935  Osmorhiza berteroi E. Mackey 1987-5-7 Humboldt Patrick's Point State Park, Palmer's Point Comment
  UC906649  Osmorhiza occidentalis Joseph P. Tracy 1946-5-19 17351 Humboldt Kneeland Prairie 762 Comment
  SD73188  Osmorhiza purpurea Darley F. Howe 1969-6-4 4627 Humboldt 14.6 miles east of Alton on number 36. 89 Comment
  HSC16708  Oxalis oregana D. E. Anderson 1963-3-1 2370 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  JEPS108632  Oxalis oregana H. G. Baker Humboldt 1 mi S of Burlington Comment
  POM278933  Oxalis oregana Lyman Benson 1927-7-12 225 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  SEINET3347653 Image available Oxalis oregana Loran C. Anderson 1949-6-4 Humboldt South of Eureka Comment
  HSC99469  Oxalis trilliifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 123 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1145217  Panicum acuminatum var. acuminatum Joseph P. Tracy 1942-6-15 17153 Humboldt 1/2 mi ne Garberville; ne of Garberville 304 Comment
  HSC26886  Papaver somniferum Keith Chamberlin 1973-7-24 Humboldt 10th and F St., Arcata Comment
  HSC13258  Parapholis incurva D. E. Anderson 1965-6-10 3794 Humboldt Harbor area of Eureka. Comment
  HSC93730  Parapholis incurva Gordon Leppig, Sylvia Leppig 1998-5-25 788 Humboldt Big Lagoon State Park. 1 Comment
  UC162690  Parentucellia viscosa Joseph P. Tracy 1911-7-12 3530 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  UCSB25613  Parnassia palustris Tracy, Joseph 1934-8-29 Humboldt South Fork Mountain, McKay Camp 1676 Comment
  POM160894  Paspalum distichum Joseph P. Tracy 1918-9-29 5108 Humboldt South Fork of Eel River, 4 mi above the mouth 61 Comment
  UC552749  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt on coast near Stone Lagoon (Dry Lagoon); North Coast Ranges, near Stone Lagoon, Dry Lagoon 3 Comment
  POM288009  Pastinaca sativa Lyman Benson 1928-7-12 811 Humboldt Weott Ranger Station. 61 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
  HSC98783  Pellaea brachyptera Cara Witte 2007-8-9 629 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  HSC1074  Pellaea mucronata var. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  HSC55832  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-25 10748 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56260  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-8-2 12416 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1586978  Penstemon anguineus Juha Pykala and D. H. Norris 1987-6-11 1564 Humboldt sw North Trinity Mountain (North Trinity Mountain Wilderness); North Trinity Mountain Wilderness Comment
  JEPS7213  Penstemon anguineus Lincoln Constance 1934-6-19 905 Humboldt Grasshopper Pk near summit South Fork Eel River, Bull Creek Region 914 Comment
  HSC55674  Penstemon deustus Walter Overton, Marvin Butler 1979-7-25 9891 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC70977  Penstemon deustus Gail Newton 1980-7-22 1678 Humboldt Near Devils Backbone 1554 Comment
  RSA33967  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1926-4-30 1935 Humboldt Bucilana Bridge. Comment
  JEPS28975  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  UC169355  Penstemon laetus var. sagittatus Harley P. Chandler 1901-6-14 1472 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 426 Comment
  HSC74601  Penstemon newberryi Gail Newton 1980-7-22 1682 Humboldt Near Devils Backbone 231 Comment
  JEPS9101  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, along summit near Blake lookout Northern Coast Ranges 1706 Comment
  NY627414  Penstemon newberryi var. berryi W. K. Parks 07 1933 s.n. Humboldt South Fork Mountain Comment
  UC1543128  Penstemon newberryi var. berryi W. K. Parks Jul 1933 1433 Humboldt South Fork Mountain Comment
  HSC102117  Penstemon procerus var. brachyanthus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1021 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56083  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11771 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS11498  Penstemon procerus var. brachyanthus Joseph P. Tracy 1932-7-12 10480 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  NY640969  Penstemon purpusii J. P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain Comment
  HSC32129  Penstemon purpusii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5585 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC36644  Pentagramma triangularis J. D. Ackerman 1974-5-25 262 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  UCD137788  Pentagramma triangularis subsp. triangularis Linda M. Barker 1976-3-11 1329 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC1051573  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1948-9-26 18235 Humboldt Boynton Prairie Fickle Hill (edge, 6 mi se of Arcata) 609 Comment
  HSC56264  Perideridia gairdneri subsp. gairdneri G. L. Clifton, Terry Griswold 1979-8-2 12421 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET12119285  Perideridia howellii J. P. Tracy 1950-1 19331 Humboldt along Larrabee Creek, 0.5 mi along Blocksburg Road W from bridge across Larrabee Creek Comment
  UC1197121  Perideridia kelloggii Joseph P. Tracy 1927-8-7 8315 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC98753  Perideridia oregana Cara Witte 2007-7-27 601 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1560 Comment
  HSC6054  Petasites frigidus var. palmatus S. J. Hawks 1965-4-6 18 Humboldt Luffenholtz Beach Comment
  SDSU6621  Phacelia D. F. Howe 1962-5-21 3300 Humboldt 24.5 miles north of garberville on #101. 61 Comment
  JEPS1444  Phacelia bolanderi Lincoln Constance 1934-5-26 687 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek region 45 Comment
  RSA75339  Phacelia bolanderi F. W. Peirson 1928-7-4 7959 Humboldt On banks of Eel River at Robinson s Grove. Comment
  BLMAR632  Phacelia ciliata Jennifer Wheeler 2011-6-15 632 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  UC175732  Phacelia egena Joseph P. Tracy 1913-6-13 4112 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC96240  Phacelia heterophylla subsp. virgata Kaylea Eickhoff, Cara M. Witte 2005-6-8 6 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  POM127633  Phacelia heterophylla subsp. virgata H. P. Chandler 1901-05 1257 Humboldt Redwood belt. 152 Comment
  UC562573  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1926-6-20 7661 Humboldt lower slopes Horse Mt. 914 Comment
  UC162721  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1911-7-5 3317 Humboldt Willow Creek (tributary of Trinity River) Northern Coast Ranges (near its mouth) 304 Comment
  HSC74137  Phacelia procera M. A. Baker 1980-7-22 3119 Humboldt Near Grogan Hole. 1676 Comment
  CAS-BOT-BC258863  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta 60 Comment
  CAS-BOT-BC258866  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt Around Humboldt Bay. Along highway across Salmon Creek flats 6 Comment
  UC552735  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt along highway across Salmon Creek flats; Northern Coast Ranges, along hwy across Salmon Creek flats 6 Comment
  RSA22131  Phalaris californica J. T. Howell 1937-7-31 13718 Humboldt Between Redwood Creek and Korbel Comment
  UC1152005  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road about 2 mi e junction of Kneeland Prairie Road Comment
  UC1152048  Phalaris minor Joseph P. Tracy 1951-6-21 19519 Humboldt Hydesville Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. Comment
  CAS-BOT-BC253586  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt Eureka 60 Comment
  UC906757  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1191119  Phlox adsurgens Joseph P. Tracy 1925-6-7 7058 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC1191120  Phlox douglasii subsp. rigida Joseph P. Tracy 1933-7-25 12828 Humboldt Horse Mountain 1432 Comment
  HSC100598  Phlox gracilis Carl C. Marshall Apr 1887 373 Humboldt Hoopa Valley. Comment
  JEPS71114  Phlox gracilis Joseph P. Tracy 1935-7-23 14146 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1103511  Phyllospadix torreyi Joseph P. Tracy 1917-5-30 4812 Humboldt ocean beach opposite Dows Prairie (probably derived from rocky shores n of Little River); Northern Coast Ranges Comment
  SEINET3882874  Physaria kingii subsp. cobrensis C. Reed, Kathryn W. Rollins 1981-6-6 81229 Humboldt 8a, Charles Sheldon Wildlife Refuge, 43 miles northeast of Cedarville.; 0 Comment
  HSC18712  Physocarpus capitatus C. B. Wolf 1927-8-30 1227 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  RSA40785  Physocarpus capitatus Carl B. Wolf 1944-10-25 11467 Humboldt Sandy river bank, along the Eel River, Redwood Highway, at Richardson Grove. 61 Comment
  CAS-BOT-BC73444  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  HSC40943  Picea sitchensis Linda M. Barker 1976-4-13 1376 Humboldt 3 mi. W of Arcata Comment
  UC1198275  Picea sitchensis Joseph P. Tracy 1930-9-28 9197 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1219787  Picea sitchensis E. Fritz 1935-8-16 Humboldt Comment
  HSC1485  Pinus contorta D. M. Thomson 1965-5-20 65 Humboldt 1.0 mi. S of Samoa. Comment
  MACF017417  Pinus contorta Trudy R. Ericson 1974-8-5 198 Humboldt Hwy 255 between Eureka and Arcata, near the shore Comment
  UC573158  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa 6 Comment
  JEPS64469  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt s end of Dyerville Bridge (Bull Creek Region, S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  UC176371  Piperia michaelii Joseph P. Tracy 1912-7-21 3763 Humboldt Alton Northern Coast Ranges 30 Comment
  RSA259584  Piperia transversa J. D. Ackerman 1974-8-14 408 Humboldt 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  UC526817  Plagiobothrys bracteatus Joseph P. Tracy 1933-7-20 12812 Humboldt near Blue Lake (in dry bed of slough); Mad River 15 Comment
  UC526818  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC3633  Plagiobothrys nothofulvus Elrid H. Spinas 1948-5-15 5 Humboldt Horse Mtn. Comment
  HSC100407  Plagiobothrys nothofulvus Carl C. Marshall Apr 1887 371 Humboldt Hoopa Valley. Comment
  UC1239571  Plagiobothrys reticulatus Joseph P. Tracy 1933-7-20 12812 1/2 Humboldt along Mad River (near Blue Lake); , Blue Lake 15 Comment
  UC1222207  Plagiobothrys scouleri Joseph P. Tracy 1946-5-19 17535 Humboldt near Ashfield; Kneeland Prairie 822 Comment
  UC1222196  Plagiobothrys trachycarpus Joseph P. Tracy 1948-5-31 17987 Humboldt Robertson's Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  HSC37922  Plantago erecta Peter Sorenson 1976-6-14 Humboldt N Spit Comment
  JEPS14283  Plantago erecta Joseph P. Tracy 1905-4-30 2174 Humboldt Fairhaven Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  RSA246719  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-7 35173 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  RSA246720  Plantago lanceolata Robert F. Thorne, Percy C. Everett 1965-8-8 35232 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC71216  Plantago maritima Thomas W. Nelson, Doris K. Niles 1979-5-19 4692 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  POM312368  Plantago maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1205 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  POM312378  Plantago subnuda Malcolm A. Nobs, S. Galen Smith 1949-8-3 1188 Humboldt Southern outskirts of Eureka Comment
  SEINET8364946  Plantago subnuda Unknown 1954-8-10 4760 Humboldt roadside ditch along U.S. Highway 101, 0.4 mile south of south boundary marker for Dry Lagoon Beach. Comment
  HSC57692  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-7-25 10917 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC70504  Platanthera dilatata var. leucostachys Gail Newton 1980-7-20 1612 Humboldt Near Bell Swamps 1426 Comment
  HSC36625  Platanthera dilatata var. leucostachys J. D. Ackerman 1975-7-11 539 Humboldt South end of Big Lagoon, near the boat ramp Comment
  RSA12545  Platanthera leucostachys Carl B. Wolf 1934-7-2 5893 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  RSA21199  Platanthera leucostachys Carl B. Wolf 1937-8-10 9087 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC275576  Platanthera sparsiflora Joseph P. Tracy 1923-6-24 6369 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC176997  Plectritis brachystemon Joseph P. Tracy 1912-6-9 3656 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC602508  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC33743  Plectritis congesta A. Montalvo 1975-5-24 279 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1239581  Plectritis congesta Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3630 Humboldt between Alton and Hydesville; Northern Coast Region 30 Comment
  HSC70751  Pleuricospora fimbriolata R. York 1980-5-17 532 Humboldt Near Le Perron Peak 1066 Comment
  HSC75692  Pleuropogon refractus Bill Copeland 1980-6-26 303 Humboldt Near Murphy Meadow 914 Comment
  UC1317649  Pleuropogon refractus R. Tofsrud 1949-7-22 Humboldt on road between Scotia and Capetown Comment
  UC184171  Pleuropogon refractus Joseph P. Tracy 1901-6-10 1131 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC10620  Poa annua R. D. Zortman 1963-3-15 46 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC10624  Poa annua E. W. Styskel 1964-4-12 65 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  UC1103793  Poa annua Joseph P. Tracy 1914-8-23 4588 Humboldt region about Humboldt Bay (forks of Elk River); Northern Coast Region 0 Comment
  HSC40309  Poa bolanderi Thomas W. Nelson, Jane P. Nelson 1976-6-22 2846 Humboldt Along Rd. to Goat Hill. 1646 Comment
  JEPS71279  Poa douglasii unknown 1925-7-29 118 Humboldt Samoa Comment
  UC1132657  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth Little River; Eureka Quadrangle Comment
  UCR80242  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  SEINET11683183  Poa douglasii K. S. Erdman 1970-1 4801 Humboldt mouth of Ossagon Creek on Gold Beach Rd 2 mi W of US 101 (Redwood N.P.) Comment
  UC187223  Poa howellii Joseph P. Tracy 1906-7-10 2486 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC255849  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  RSA183517  Poa kelloggii H. S. Logsdon 1964-5-10 7 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  RSA152300  Poa macrantha Joseph P. Tracy 1917-5-30 4799 Humboldt Ocean Beach at mouth of Little River Comment
  RSA28797  Poa macrantha H. E. Parks 1934-05 4805 Humboldt Little River lagoon Comment
  SD39642  Poa macrantha Edith A. Purer 1932-7-27 4156 Humboldt Samoa, sand dunes Comment
  HSC39187  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1226 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC10714  Poa secunda subsp. secunda D. J. Wilder 1965-4-25 12 Humboldt Humboldt State College Campus, Laurel Dr. Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  UC34123  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit Comment
  HSC10805  Poa trivialis William J. Ferlatte 1963-5-6 35 Humboldt Arcata, near 11th and B Sts. Comment
  HSC26778  Poa trivialis Thomas W. Nelson 1971-5-31 462 Humboldt 915 Comment
  CAS-BOT-BC244205  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  HSC10812  Poa unilateralis R. D. Rogers 1964-4-16 5 Humboldt Patricks Point State Park. Comment
  CAS-BOT-BC232888  Polemonium carneum Carl B. Wolf 1937-8-10 9093 Humboldt Big Lagoon, S side. W of Redwood Highway 6 Comment
  UC1178965  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  CDA3404  Polycarpon tetraphyllum Gordon Leppig, Sylvia Leppig 2000-12-7 1524 Humboldt 10th and I Streets, Arcata. Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  RSA43860  Polygala cornuta var. cornuta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UC902120  Polygala cornuta var. cornuta Joseph P. Tracy 1947-7-5 17788 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC17467  Polygonum aviculare P. W. Shields 1955-6-18 Humboldt HSC Campus Comment
  HSC12419  Polygonum aviculare D. Santana 1970-10-15 70 Humboldt 10th and G St. behind Regal Gas Station Comment
  CAS-BOT-BC414301  Polygonum aviculare subsp. neglectum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  UC1198087  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  JEPS79955  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC56172  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 12065 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1222329  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt on trail between Box Camp and Croghan Hole; Trinity Summit 1676 Comment
  CAS-BOT-BC109177  Polygonum paronychia Doris K. Kildale 1927-5-15 3165 Humboldt Beach at Cape Mendocino. Comment
  UC672942  Polygonum parryi Joseph P. Tracy 1930-7-6 8855 Humboldt Valley of South Yager Creek 762 Comment
  UC672941  Polygonum persicaria Joseph P. Tracy 1927-10-8 8387 Humboldt Prairie Creek Boyes Ranch 91 Comment
  UC1198077  Polygonum sachalinense Joseph P. Tracy 1942-9-20 17319 Humboldt along hwy near mouth of Elk River 6 Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 Comment
  HSC17537  Polygonum spergulariiforme Larry Berti 1968-10-20 Humboldt Along the Van Duzen River Comment
  CAS-BOT-BC421005  Polygonum spergulariiforme Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC45835  Polypodium californicum M. A. Baker 1977-2-3 163 Humboldt West end of Lamphere Rd., less than 1 mi. from sand dunes Comment
  UC375480  Polypodium scouleri Harley P. Chandler May, 1901 1137 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  HSC1113  Polypodium scouleri D. E. Anderson 1961-8-11 1723 Humboldt E of HSC campus Comment
  UCSB30619  Polypodium scouleri Edwards, David 1974-9-2 Humboldt Ca. 100 ft. up facing slope from dirt road, ca. 100 yds. from its jet. with Fickle Hill Rd 121 Comment
  UCD51643  Polypogon interruptus J. B. Davy 1899-6-13 5515 Humboldt Near Pepperwood. Comment
  CAS-BOT-BC233214  Polypogon maritimus Joseph P. Tracy 1934-7-9 13351 Humboldt Dobbyn Creek 152 Comment
  HSC101540  Polypogon monspeliensis J. P. Smith 2010-5-29 12889 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  RSA54138  Polypogon monspeliensis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  RSA693352  Polystichum dudleyi J. Hickman 1882-1 s.n. Humboldt Near Cape Mendocino. Comment
  HSC74744  Polystichum imbricans Gail Newton 1981-8-7 2425 Humboldt Near Bug Creek Butte 1244 Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  SDSU1640  Polystichum munitum Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  CAS-BOT-BC102905  Populus trichocarpa Doris K. Kildale 1926-3-24 1618 Humboldt Lindsey Creek bridge - Lower Mad River 26 Comment
  CAS-BOT-BC102909  Populus trichocarpa Doris K. Kildale 1927-5-15 3155 Humboldt Petrolia, Mattole River Valley Comment
  UC1099846  Potamogeton natans Malcolm A. Nobs, S. Galen Smith 1949-8-9 1229 Humboldt 1 mi n of Arcata (at junction of Highways 101 and 299); Mad River Valley Comment
  UC1198265  Potamogeton natans Joseph P. Tracy 1917-5-30 4809 Humboldt near mouth of Little River; Northern Coast Ranges 6 Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge Comment
  HSC97733  Potentilla anserina subsp. pacifica Kevin Thomas 2004-4-7 12 Humboldt Z St., along McDaniel slough Comment
  HSC100633  Potentilla glandulosa Carl C. Marshall Jun 1887 447 Humboldt Spruce Grove. Comment
  RSA46858  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  HSC44544  Potentilla gracilis var. fastigiata Brad Klipfel 1973-7-15 163 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58182  Potentilla gracilis var. fastigiata G. L. Clifton, Griswold 1979-8-2 12270 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC508639  Prosartes hookeri L. R. Abrams 1918-6-15 7107 Humboldt Brannan Mt. near Willow Creek Comment
  HSC45241  Prosartes hookeri Thomas W. Nelson, Jane P. Nelson 1977-7-1 3553 Humboldt Along Blanket Creek, N side of ridge between Bear and Blanket Creeks 1463 Comment
  HSC49800  Prosartes smithii R. York 1979-4-9 214 Humboldt Behind HSU campus, by trail Comment
  HSC97301  Prosartes smithii M. Mesler 2007-5-15 750 Humboldt Bald Hills Rd., 18.8 mi. from Hwy. 101, N side of rd. 915 Comment
  HSC69855  Prunella vulgaris R. Kalal 1980-8-3 93 Humboldt Parking area of Elk Head Comment
  HSC63631  Prunella vulgaris subsp. lanceolata J. P. Smith, Steve Selva 1970-6-30 4100 Humboldt Comment
  HSC96503  Prunella vulgaris subsp. vulgaris Gordon Leppig 1998-8-23 1073 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC102529  Prunella vulgaris var. lanceolata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1516 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC162689  Prunella vulgaris var. lanceolata Joseph P. Tracy 1911-7-7 3380 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Cr with Trinity River 914 Comment
  RSA245006  Prunella vulgaris var. lanceolata William J. Ferlatte 1966-6-15 2093 Humboldt Near Bridgeville Comment
  RSA43864  Prunus virginiana var. demissa H. M. Pollard 1948-8-12 s.n. Humboldt Orleans Comment
  UC127827  Pseudognaphalium californicum Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5890 Humboldt Francis Ridge Comment
  HSC67443  Pseudognaphalium stramineum J. P. Smith 1971-10-6 4936 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC74454  Pseudognaphalium thermale Gail Newton 1980-8-10 2008 Humboldt Near Blake Mtn. 1798 Comment
  UC180193  Pseudognaphalium thermale Joseph P. Tracy 1914-9-6 4622 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  UC902023  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 3 Comment
  UC165838  Psilocarphus oregonus Joseph P. Tracy 1908-6 2798 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC582501  Psilocarphus tenellus Joseph P. Tracy 1927-7-4 8236 Humboldt Iaqua 609 Comment
  HSC79440  Pteridium aquilinum var. pubescens Kenneth Clark 1980-6-14 675 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  HSC99408  Pteridium aquilinum var. pubescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 57 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC90883  Puccinellia nutkaensis Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata; 30 yards from Salt Marsh Trail. Comment
  CHSC104064  Pyracantha angustifolia Peter F. Zika 2009-6-15 24493 Humboldt North Coast Ranges. Route 299, 0.2 km W of Davis Street, near town of Blue Lake. 80 Comment
  JEPS58845  Pyrola aphylla W. L. Jepson 1902-7-13 2023 Humboldt Willow Creek to Hupa Comment
  HSC83331  Pyrola aphylla Ron Glick 1987-6-21 Humboldt Comment
  UC32693  Pyrola asarifolia Chestnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  SBBG59887  Pyrola asarifolia S. W. Hutchinson -Jun-1927 317 Humboldt Redwood Hwy 304 Comment
  HSC97954  Pyrola crypta Cara Witte 2007-6-2 397 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1546 Comment
  HSC41260  Pyrola dentata Brad Klipfel 1974-7-23 452 Humboldt Horse Mtn., N of the towers Comment
  UC21699  Pyrola picta J. Burtt Davy Jun 1899 5876 B Humboldt North Coast Ranges, Hoopa Mountains Hoopa Mountains; North Coast Ranges, Hoopa Mountains Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC105170  Quercus kelloggii Roxana S. Ferris 1955-7-11 12974 Humboldt Summit of US Highway 299 betw. Willow Creek and Blue Lake Comment
  HSC61194  Quercus kelloggii Jimerson, J. Pageau 1979-5-24 474 Humboldt Near Orleans 143 Comment
  OBI36667  Quercus kelloggii David J. Keil 1983-7-2 17342 Humboldt 2.8 mi S of SR 299 along titlow HIll rd, SW of Willow Creek Comment
  UC203998  Quercus kelloggii Joseph P. Tracy 1918-5-1 4895 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC502987  Quercus kelloggii Joseph P. Tracy 1929-4-28 8542 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC502988  Quercus kelloggii Joseph P. Tracy 1928-9-30 8510 Humboldt near Bridgeville; Northern Coast Ranges 304 Comment
  UC54719  Quercus kelloggii Mrs. M. H. Manning Oct 1901 Humboldt Hupa Comment
  HSC102199  Quercus sadleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1113 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UCD47219  Quercus sadleriana Hilda W. Grinnell 1932-7-9 4 Humboldt Found only at this point. On rocky point above Kerlin Creek, South Fork Mt. 1524 Comment
  UC1196506  Quercus wislizeni Joseph P. Tracy 1923-10-14 6577 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  CAS-BOT-BC379173  Ranunculus aquatilis var. aquatilis Joseph P. Tracy 1937-5-30 15311 Humboldt Larrabee Creek; in shallow pond near Bosworth's 366 Comment
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  HSC40642  Ranunculus californicus var. californicus J. P. Smith, J. O. Sawyer 1975-5-11 8083 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  CAS-BOT-BC378852  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-20 1549 Humboldt Near mouth of Little River Comment
  RSA273369  Ranunculus flammula J. O. Sawyer 1977-4-25 3043 Humboldt Along N side of Buttermilk lane Sunnybrae. Across the street from 1425 Buttermilk Lane Comment
  HSC26638  Ranunculus lobbii Thomas W. Nelson 1971-5-31 447 Humboldt Vernal pond Comment
  HSC49168  Ranunculus occidentalis J. O. Sawyer 1977-4-23 2837 Humboldt Along Bald Hills Rd. E of Hoopa Comment
  HSC18170  Ranunculus occidentalis var. occidentalis Francis Winter 1960-4-23 Humboldt 1.0 mi. N of Dollar Ranch on Korbel-Maple Creek Rd. 229 Comment
  HSC98685  Ranunculus occidentalis var. occidentalis Cara Witte 2008-6-7 685 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  RSA21038  Ranunculus occidentalis var. rattanii Carl B. Wolf 1937-6-19 8907 Humboldt Van Duzen River at Dunns Mill, 5 miles below Bridgeville. 91 Comment
  HSC18174  Ranunculus pusillus J. P. Tracy 1903-5-24 1912 Humboldt Alder Point on Eel River 152 Comment
  HSC18181  Ranunculus repens J. C. Reppas 1963-4-11 36 Humboldt 820 Fickle Hill Rd. Comment
  UC1196221  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  HSC18182  Ranunculus repens var. repens V. G. Vieira 1963-4-24 7 Humboldt Essex Pond Comment
  HSC36258  Ranunculus repens var. repens John Rehling 1974-8-19 18 Humboldt Comment
  POM145526  Ranunculus sardous J. B. Feudge 1923-7-22 140 Humboldt At Fortuna. 15 Comment
  HSC55324  Ranunculus uncinatus Griswold, Butler 1979-7-12 7143 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC99407  Ranunculus uncinatus var. uncinatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 56 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC902203  Rhamnus californica Joseph P. Tracy 1946-7-13 17616 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  UC203996  Rhamnus californica subsp. californica Joseph P. Tracy 1918-7-5 5011 Humboldt White Thorn Valley Northern Coast anges 304 Comment
  UC199061  Rhamnus purshiana Chesnut and Drew Jul 1888 Humboldt Jarnigan's Comment
  UC592918  Rhamnus purshiana Carl B. Wolf 1937-8-13 Humboldt 11 mi e Hoopa Valley (onnew road towards Trinity Summit); North Coast Range 1524 Comment
  UC614839  Rhododendron macrophyllum Beryl O. Schreiber 1934-6-5 1136 Humboldt 20 mi e of Blue Lake (road to Redding) Comment
  UC153960  Rhododendron occidentale Joseph P. Tracy 1909-10-10 3114 Humboldt 3 mi beyond French Camp, between Pine and Tuley French Camp; Northern Coast Ranges 609 Comment
  CAS-BOT-BC433136  Ribes Doris K. Kildale; L. B. Kildale 1930-5-5 9555 Humboldt Bug Creek, Chaparral Mt. Comment
  HSC40801  Ribes binominatum Thomas W. Nelson 1976-7-9 2972 Humboldt W side of Red Lassic 1707 Comment
  UC1198921  Ribes binominatum Joseph P. Tracy 1942-6-23 17251 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC667066  Ribes binominatum Joseph P. Tracy 1933-8-30 13058 Humboldt on e slope Grouse Mountain (near lookout station) 1615 Comment
  CAS-BOT-BC92878  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  UC161565  Ribes bracteosum Joseph P. Tracy 1911-6-4 3216 Humboldt 5 mi from coast; Northern Coast Region, Little River 121 Comment
  UC70556  Ribes inerme var. klamathense J. Burtt Davy 1899-6-26 5867 Humboldt Hoopa Valley North Coast Ranges Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  POM237433  Ribes laxiflorum S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  CAS-BOT-BC173360  Ribes lobbii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC74138  Ribes lobbii M. A. Baker 1980-7-23 3175 Humboldt Near Orleans Mtn. 1859 Comment
  HSC97215  Ribes marshallii M. Mesler 2007-6-25 765 Humboldt Trail to Mill Creek Lakes 1585 Comment
  CAS-BOT-BC206034  Ribes menziesii Alice Eastwood 1907-4-21 13 Humboldt Port Trinidad Comment
  CAS-BOT-BC206040  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  HSC100493  Ribes menziesii Carl C. Marshall Apr 1886 134 Humboldt Everywhere about the bay. Comment
  UC552240  Ribes menziesii Joseph P. Tracy 1935-3-3 13713 Humboldt Dow's Prairie 60 Comment
  UC552244  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  RSA0021772  Ribes menziesii Doris K. Kildale 1927-6-25 3570 Humboldt Shelter Cove. Comment
  HSC53912  Ribes nevadense Griswold, Butler 1979-7-11 6922 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  RSA0024582  Ribes roezlii Carolyn Sanford 1977-4-23 332 Humboldt 2.5 miles south of Shelter Cove Road, south fork of Bear Creek at Wailaki Campground 561 Comment
  UC1563693  Ribes roezlii Barbara Ertter with Thomas J. Delendick 1987-5-16 6938 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  RSA167292  Ribes roezlii var. amictum Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge 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
  UC667068  Ribes roezlii var. cruentum Joseph P. Tracy 1937-3-27 15240 Humboldt near Blue Lake; Mad River 15 Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC55619  Ribes sanguineum Overton, Butler 1979-7-23 9536 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC1541332 Image available Ribes sanguineum Harold E. Parks 1930-5-25 868 Humboldt Laribee Valley 762 Comment
  RSA0019529  Ribes sanguineum D. E. Anderson 1964-4-24 3540 Humboldt About 0.5 mile from junction 299 along Titlow Hill Road. Comment
  CAS-BOT-BC144682  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UC1127604 Image available Ribes sanguineum var. glutinosum R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quadrangle Comment
  UC1198911  Ribes sanguineum var. glutinosum Joseph P. Tracy 1925-3-15 6946 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCD102493  Ribes sanguineum var. glutinosum Linda M. Barker 1976-3-11 1323 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC103199  Ribes viscosissimum Jade Paget-Seekins 2010-7-5 36 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC100714  Rigiopappus leptocladus Carl C. Marshall Jul 1887 450 Humboldt Rock near Asbill's Ranch. Comment
  RSA516379  Romanzoffia californica Barbara Ertter, Thomas Delendick 1987-5-16 6937 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata; base of large volcanic rock on S side of road above Willow Creek. 800 Comment
  UC1103817  Romanzoffia tracyi Joseph P. Tracy 1940-5-18 16563 Humboldt 2 mi. n. Trinidad (coast bluff opposite Park's place) 3 Comment
  CAS-BOT-BC74370  Rorippa columbiae Henry M. Pollard 1956-10-9 s.n. Humboldt Near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans. Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  SD88394  Rorippa nasturtium-aquaticum Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville. Comment
  UC492261  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  CAS-BOT-BC147435  Rosa californica Doris K. Kildale; L. B. Kildale 1930-5-24 9545 Humboldt Hoopa Valley 152 Comment
  HSC19646  Rosa gymnocarpa D. E. Anderson 1965-5-15 3711 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC492160  Rosa gymnocarpa Joseph P. Tracy 1932-7-13 10493 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1199021  Rosa nutkana var. nutkana Joseph P. Tracy 1936-8-17 15151 Humboldt near Still Ranch (2 mi s of Field's Landing) 6 Comment
  UC162332  Rubus leucodermis Joseph P. Tracy 1911-6-4 3235 Humboldt 5 mi from coast (along Little River); Northern Coast Region, along Little River 121 Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  CAS-BOT-BC147239  Rubus parviflorus Joseph P. Tracy 1932-7-15 10576 Humboldt Near Corral Prairie 1524 Comment
  HSC48109  Rubus parviflorus Brad Klipfel 1973-7-15 201 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA1366  Rubus parviflorus E. R. Johnson 1929-08 1416 Humboldt Arcata Redwood Park. 76 Comment
  UC1536908  Rubus parviflorus Gordon H. True Jr. 1936-5-12 473 Humboldt 5 mi s Kneeland; s of Kneeland 457 Comment
  UC162331  Rubus parviflorus Joseph P. Tracy 1911-7-7 3432 Humboldt between Willow Creek and Campbell Creek (viz. Ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  CAS-BOT-BC156722  Rubus spectabilis Alice Eastwood 1939-3-19 s.n. Humboldt Garden Club of America Grove Comment
  CHSC57509  Rubus spectabilis Eric Hartwell 1983-3-30 2 Humboldt Ca. 0.25 mi e of jct. of Jocoby Creek Rd. and Sonnenfelt Rd. 97 Comment
  RSA183527  Rubus spectabilis M. L. Stuart 1965-4-25 20 Humboldt About 100 yards up the Fern Lake Road. Comment
  CAS-BOT-BC158789  Rubus ursinus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC38943  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  LA208254  Rubus ursinus H. Lewis; 1940-7-3 sn Humboldt Dry lagoon Beach, State Park Comment
  HSC76208  Rudbeckia klamathensis Overton, Butler 1979-8-2 12527 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC55016  Rumex acetosella Overton, Butler 1979-7-31 11408 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56171  Rumex acetosella G. L. Clifton, Griswold 1979-8-1 12064 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC79444  Rumex acetosella Kenneth Clark 1980-3-27 549 Humboldt Open areas and terraces above Dead Man's Gulch 107 Comment
  HSC17583  Rumex acetosella J. E. Lankila 1962-5-14 28 Humboldt W bank of river at Fernbridge Comment
  HSC40030  Rumex acetosella Thomas W. Nelson, Jane Nelson 1976-6-22 2876 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC48031  Rumex acetosella Brad Klipfel 1974-5-27 404 Humboldt Horse Mtn. Comment
  HSC39979  Rumex crassus Linda M. Barker 1976-8-2 1672 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  CHSC31287  Rumex crispus Mark Stopher 1980-6-4 100 Humboldt In diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  HSC78986  Rumex crispus L. P. Janeway 1984-5-16 802 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  UCD100941  Rumex fueginus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon. Humboldt Coast. Comment
  CDA2893  Rumex obtusifolius T. C. Fuller 1958-6-17 590 -58 Humboldt Hydesville. 0 Comment
  HSC98929  Rupertia physodes Cara Witte 2007-6-14 280 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 mile north of White Oak Opening. 1258 Comment
  UC1100022  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1182 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  POM151674  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  CAS-BOT-BC132706  Salix A. T. Whittemore 1980-3-15 80 -003 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC132711  Salix A. T. Whittemore 1980-3-15 80 -005 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC129884  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129891  Salix bonplandiana M. S. Jussel 1932-5-1 s.n. Humboldt Sylvandale Comment
  CAS-BOT-BC106849  Salix hookeriana Harold E. Parks 1931-5-12 0955 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC106853  Salix hookeriana Jim Davis 1933-4-25 8 Humboldt Samoa Comment
  CAS-BOT-BC106856  Salix hookeriana Harold E. Parks 1931-8-1 01053 Humboldt Little River Lagoon Comment
  HSC90193  Salix hookeriana Jean Hanson 1980-3-8 10 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12913  Salix hookeriana H. E. Parks and Joseph P. Tracy 1927-4-23 7922 Humboldt Big Lagoon; Northern Coast Ranges 6 Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1225928  Salix hookeriana Joseph P. Tracy 1947-2-23 17668 Humboldt Bridgeville Van Duzen River (along river) 198 Comment
  UC470436  Salix hookeriana Joseph P. Tracy 1931-10-18 9741 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC470437  Salix hookeriana Joseph P. Tracy 1931-10-18 9738 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC490454  Salix hookeriana Joseph P. Tracy 1932-5-10 9938 Humboldt Bear R. at Capetown; Northern Coast Ranges, , Bear R. 30 Comment
  UC490461  Salix hookeriana Joseph P. Tracy 1932-5-10 9957 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC511999  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1238 Humboldt floodplain of Van Duzen R. at Blue Slide 91 Comment
  UC709426  Salix hookeriana Joseph P. Tracy 1941-8-3 16980 Humboldt Table Bluff; adjoining coast sand dunes at w end of bluff 3 Comment
  UC709427  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. Camp Grant 48 Comment
  UC481831  Salix laevigata Mrs. H. P. Bracelin 1931-5-2 284 a Humboldt 6 km. s Alton (e of Redwood Hwy.) 20 Comment
  UC1196584  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-8-5 16394 Humboldt along Van Duzen R. at Dinsmore's; Van Duzen R. 737 Comment
  UC1225918  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt meadow at Box Camp Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC125215  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1115 Humboldt Samoa Penn 3 Comment
  CAS-BOT-BC107104  Salix lasiolepis Joseph P. Tracy 1931-3-31 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CHSC96727  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog. On eastern fen edge. NAD 27, UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  JEPS12909  Salix lasiolepis Joseph P. Tracy 1927-4-10 7885 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12923  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11005 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1196616  Salix lasiolepis Joseph P. Tracy 1934-3-4 13143 Humboldt Miranda South Fork of Eel River 121 Comment
  UC1196626  Salix lasiolepis Joseph P. Tracy 1935-7-9 14058 Humboldt Lack Pond Trinity River Valley (opposite mouth of Willow Creek) 152 Comment
  UC1225925  Salix lasiolepis Joseph P. Tracy 1942-7-26 17296 Humboldt near Redwood House; South Yager Creek 609 Comment
  UC506344  Salix lasiolepis Joseph P. Tracy 1933-3-19 10932 Humboldt Blue Slide, on Van Duzen River 228 Comment
  UC511980  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  CDA39555  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  CAS-BOT-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107413  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-7 1527 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  CAS-BOT-BC107416  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-9-17 2802 Humboldt [Dobbyns] Dobbyn Creek Comment
  CAS-BOT-BC125628  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  CAS-BOT-BC125633  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125636  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0973 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  UC1196564  Salix melanopsis Joseph P. Tracy 1931-5-3 9347 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC1196574  Salix melanopsis Joseph P. Tracy 1931-5-16 9615 Humboldt vicinity of Garberville (S. Fork Eel R. at Redway); North Coast Ranges, S. Fork Eel R., Redway 121 Comment
  UC512012  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1235 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519369  Salix melanopsis Joseph P. Tracy 1933-7-22 12824 Humboldt S. Fork Eel R. at mouth of Bull Creek; Northern Coast Ranges, S. Fork Eel R. 45 Comment
  UC519379  Salix melanopsis Joseph P. Tracy 1933-5-20 12260 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  SEINET770618 Image available Salix parksiana J. P. Parks 1931-5-14 962 Humboldt Van duzen River between Alton and carlotta, Humboldt County 15 Comment
  CAS-BOT-BC129158  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  HSC38187  Salix scouleriana Thomas W. Nelson, James Nelson 1976-3-5 3293 Humboldt Beside Hwy. 101 near summit of Table Bluff Comment
  HSC38188  Salix scouleriana Thomas W. Nelson, James Nelson 1976-3-5 3294 Humboldt Beside Hwy. 101 near summit of Table Bluff Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  UC1196702  Salix scouleriana Joseph P. Tracy 1926-10-12 7812 Humboldt near mouth of S. Fork Trinity R. MirandaFour Mile creek; Northern Coast Ranges, Four Mile Creek 609 Comment
  CAS-BOT-BC128961  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt Rocky exposed places, head of Brett Hole - Klamath Mountains 1828 Comment
  CAS-BOT-BC128995  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain: in wet meadow at McKay Camp 1676 Comment
  HSC38186  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3288 Humboldt Eureka, E side of F St., 3800 block Comment
  UC302155  Salix sitchensis Joseph P. Tracy 1926-3-14 7392 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490531  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit, Brett Hole 1828 Comment
  UC490532  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit 1828 Comment
  CAS-BOT-BC176897  Salsola tragus Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  UCLA69890  Salvia dorrii var. pilosa unknown Humboldt Harris Spring road 1828 Comment
  CAS-BOT-BC235014  Sambucus L. R. Abrams 1916-7-18 6098 Humboldt Above road - Arcata to Trinidad Comment
  RSA21578  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  JEPS12747  Sambucus mexicana W. L. Jepson 1932-7-24 16390 Humboldt Mail Ridge 914 Comment
  HSC3969  Sambucus racemosa var. racemosa E. W. Styskel 1963-4-2 13 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. Comment
  UCD170574  Sambucus racemosa var. racemosa Gordon Leppig 1998-4-13 737 Humboldt Arcata, Anvick Rd. 12 Comment
  HSC37921  Sanicula arctopoides Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC154052  Sanicula arctopoides J. P. Tracy 1900-6-5 852 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  HSC74740  Sanicula crassicaulis Gail Newton 1981-8-5 2361 Humboldt Near Bug Creek, E Fork. 820 Comment
  HSC89601  Sanicula crassicaulis M. Roantree 1985-4-28 16 Humboldt W side of Trinidad Head, along trail Comment
  OBI36668  Sanicula crassicaulis David J. Keil 1983-7-2 17341 Humboldt 2.8 mi S of SR 299 along Titlow Hill rd, SW of Willow crk. Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  HSC55730  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10214 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC45393  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1977-6-19 3491 Humboldt N of Goat Hill 1616 Comment
  HSC81608  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5260 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  HSC69867  Sanicula tuberosa Thomas W. Nelson 1978-5-28 4095 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC74373  Sanicula tuberosa M. A. Baker 1980-6-28 2501 Humboldt Near Mad River Buttes 1445 Comment
  UC1541383  Sanicula tuberosa W. K. Parks July 1933 Humboldt Buck Mountain Comment
  RSA24203  Saxifraga mertensiana Carl B. Wolf 1941-3-2 9991 Humboldt N Coast Range. 2 miles S of Honeydew along Honeydew Creek. 152 Comment
  HSC70985  Saxifragopsis fragarioides Gail Newton 1980-7-22 1657 Humboldt Near Devils Backbone 1554 Comment
  UCD65995  Schedonorus arundinaceus Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CHSC68459  Schoenoplectus acutus var. occidentalis L. P. Janeway 1987-7-30 2535 Humboldt Dry Lagoon. Middle of the lagoon. 3 Comment
  HSC7437  Schoenoplectus acutus var. occidentalis D. E. Anderson 1961-9-9 1784 Humboldt Along Hwy. 101 Comment
  HSC90687  Schoenoplectus americanus Gail Newton 1982-5-31 3562 Humboldt Elk River Wildlife Area, Eureka Comment
  POM87952  Schoenoplectus pungens Le Roy Abrams, Rimo C. Bacigalupi 8268 Humboldt Big Lagoon, south of Orick. Comment
  CAS-BOT-BC111699  Schoenoplectus pungens var. badius A. A. Heller 1924-7-21 13868 Humboldt Plentiful in a drier part of a salt marsh at Eureka. Comment
  UC249744  Scirpus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville Northern Coast Ranges, Centerville (in tule swapm near the ocean beach) 3 Comment
  HSC102057  Scirpus microcarpus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 962 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC183681  Scirpus microcarpus Joseph P. Tracy 1914-9-13 4628 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  UCD141254  Scirpus microcarpus Gordon Leppig 1998-6-26 861 Humboldt Arcata, Alder Grove Pond. South side of pond. 18 Comment
  HSC7462  Scirpus microcarpus J. R. Kahl 1962-5-4 27 Humboldt 3 mi. S of Trinidad along old Hwy. 101 Comment
  UC1103647  Scirpus pungens Joseph P. Tracy 1934-10-21 13689 Humboldt along coast in front of South End of Stone Lagoon Dry Lagoon 3 Comment
  UC275483  Scleranthus annuus subsp. annuus Joseph P. Tracy 1925-5-30 7032 Humboldt Laribee Valley; Northern Coast Ranges, Laribee Valley 701 Comment
  CHSC114022  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood. 76 Comment
  HSC41917  Scoliopus bigelovii Rich White 1977-4-23 16 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork on Bear Creek at Wailaki Campground 561 Comment
  SEINET8501887  Scoliopus bigelovii R. R. Halse 2013-3-28 8766 Humboldt Along US Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood. 76 Comment
  CAS-BOT-BC517415  Scoliopus bigelovii Doris K. Kildale 1926-2-28 1520 Humboldt Kneeland Prairie Road at the watering trough 609 Comment
  SEINET12050497  Scoliopus bigelovii F. H. Utech 1988-1 88 -281 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, above Van Duzen River 800 Comment
  HSC72406  Scrophularia californica J. P. Smith 1973-5-26 6820 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC100682  Scrophularia californica Carl C. Marshall Apr 1886 175 Humboldt Everywhere. Comment
  UCD125670  Scutellaria antirrhinoides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC1488732  Sedum laxum Gail Newton 1980-7-15 1549 Humboldt near Sims Mountain; Pilot Creek Quad., near Sims Mountain 430 Comment
  HSC59361  Sedum laxum subsp. heckneri M. A. Baker 1979-7-8 621 Humboldt 2 km S of the junction of the roads to Blue Creek Mtn. and Onion Lake 1400 Comment
  HSC59362  Sedum laxum subsp. heckneri M. A. Baker 1978-7-9 623 Humboldt Confluence of the Trinity River and Tish Tang A Tang Creek Comment
  UC169908  Sedum laxum subsp. heckneri Harley P. Chandler June, 1901 1439 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC667085  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-7-25 12899 Humboldt Grouse Mountain 1524 Comment
Read comments
Aug 17 2011
  CAS-BOT-BC64703  Sedum oregonense Doris K. Kildale 1925-8-17 1221 Humboldt Trinity Summit 1828 Comment
  UC169907  Sedum radiatum Harley P. Chandler June, 1901 1379 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation, Hupa Valley (Hupa Indian Reservation, North Coast Ranges) 152 Comment
  UC1198840  Sedum radiatum Joseph P. Tracy 1926-5-15 7482 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie (on Barry Road) 762 Comment
  CAS-BOT-BC63790  Sedum radiatum subsp. radiatum Doris Kildale Gillespie 1931-6-7 10602 Humboldt Soth Forb Mt. Blake Lookout. 1726 Comment
  RSA0074767  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  UC166031  Sedum spathulifolium Joseph P. Tracy 1907-7-4 2582 Humboldt coast bluffs near Trinidad; Northern Coast Ranges, near Trinidad 30 Comment
  CDA42470  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway. Comment
  RSA170262  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel. 640 Comment
  UC201252  Senecio aronicoides Chestnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  UC1223048  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt Kneeland Prairie 762 Comment
  UC249532  Senecio integerrimus var. major Joseph P. Tracy 1922-6-12 6087 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC302177  Senecio integerrimus var. major Joseph P. Tracy 1926-5-15 7480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR294  Senecio integerrimus var. major Jennifer Anthony-Wheeler 2002-4-30 294 Humboldt Clark Butte 670 Comment
  SJSU8451  Senecio minimus H. T. Harvey 1977-8-8 620 Humboldt delta lands of Eel R c. 4 mi NW of Ferndale Comment
  UC1199488  Senecio minimus Joseph P. Tracy 1926-11-7 7826 Humboldt along Eel River from south fork to Scotia; Eel River 60 Comment
  UC204834  Senecio minimus Joseph P. Tracy 1918-7-28 5088 Humboldt ocean beach at Humboldt Bay Comment
  UC581699  Senecio sylvaticus Joseph P. Tracy 1934-7-3 13305 Humboldt near Freshwater Corners (around Humboldt Bay); northern Coast Region, around Humboldt Bay 15 Comment
  UCD135752  Senecio sylvaticus W. L. Colwell 1955-10-1 30 Humboldt Brush Mountain. 1066 Comment
  UC1223185  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River Bar at mouth Van Duzen (near Alton); Eel River Bar at mouth of Van Duzen Comment
  HSC95584  Senecio vulgaris Andrea Pickart 2002-3-14 4 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  IRVC3682  Sequoia sempervirens R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  SEINET3876375 Image available Sequoia sempervirens Richard R. Halse 1989-5-13 3842 Humboldt Along U.S. Hwy 101, 2 miles south of Weott.; 0 108 Comment
  SEINET10719715  Sequoia sempervirens Ronald J. Mastrogiuseppe Mastrogiuseppe s.n. Humboldt On the flood plain of the Founders' Grove. Comment
  CHSC40213  Sherardia arvensis L. P. Janeway 1984-5-13 775 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek. 609 Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC108863  Sidalcea malviflora subsp. patula J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  UC205469  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay (around Humboldt Bay) 60 Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  CAS-BOT-BC181229  Silene hookeri subsp. bolanderi H. E. Parks; J. P. Tracy 1930-5-25 0791 Humboldt Laribee Valley 792 Comment
  CAS-BOT-BC389069  Silene laciniata subsp. californica W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  CAS-BOT-BC389052  Silene laciniata subsp. californica D. E. Breedlove 1961-7-4 652 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  CAS-BOT-BC389262  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  UC161035  Silene scouleri subsp. grandis Joseph P. Tracy Sept. 1904 2141 Humboldt bluff back Bucksport (at Eureka); Northern Coast Region, at Eureka 0 Comment
  UC1198791  Sisymbrium altissimum Joseph P. Tracy 1929-8-18 8660 Humboldt on Van Duzen River, Dinsmore's Ranch, opposite Buck Mountain Van Duzen River; Northern Coast Ranges, , Dinsmore's Ranch 670 Comment
  RSA43852  Sisymbrium altissimum H. M. Pollard 1947-8-6 s.n. Humboldt Roadside W of Orleans. Comment
  UC275555  Smilacina racemosa Joseph P. Tracy 1924-8-10 6798 Humboldt Stongs Station Northern Coast Ranges, Van Duzen River 91 Comment
  HSC78987  Solanum aviculare L. P. Janeway 1984-5-16 803 Humboldt N spit of Humboldt Bay alongside dirt rd. on S side of Coast Guard Station 3 Comment
  HSC21307  Solanum nigrum Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  HSC21308  Solanum nigrum Francis Morrell 1949-5-30 35 Humboldt Weitchpec Comment
  JEPS12110  Solanum physalifolium var. nitidibaccatum Joseph P. Tracy 1940-9-28 16738 Humboldt Eureka 30 Comment
  CAS-BOT-BC154214  Solanum umbelliferum E. P. Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM187917  Solidago canadensis subsp. elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton. Comment
  RSA47125  Solidago canadensis subsp. elongata Doris K. Kildale 1928-8-17 1211 Humboldt Trinity Summit 1829 Comment
  UC198623  Solidago elongata Joseph P. Tracy 1917-9-1 4835 Humboldt Murphy meadow Northern Coast Ranges, , Murphy meadow (Bald Mountain) 1066 Comment
  CAS-BOT-BC365669  Solidago spathulata Doris K. Kildale 1928-8-10 6263 Humboldt Samoa Peninsula - Humboldt Bay Comment
  UC1478656  Solidago spathulata Robert F. Thorne 1974-7-29 45070 Humboldt between Humboldt Bay and Pacific Ocean (Samoa Dunes); Samoa Dunes Comment
  CAS-BOT-BC374597  Sonchus oleraceus Joseph P. Tracy 1935-5-16 13805 Humboldt At Eureka 30 Comment
  HSC39802  Sonchus oleraceus Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  UCD136197  Sonchus oleraceus James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC56199  Sorbus scopulina Gilbert Muth 1979-8-1 12165 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC76207  Sorbus scopulina Overton, Butler 1979-8-2 12529 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC97446  Sparganium emersum Ivy Watson 2008-10-5 35 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UC176182  Sparganium emersum var. emersum Joseph P. Tracy 1913-9-9 4405 Humboldt near mouth of Little River; Northern Coast Ranges 3 Comment
  HSC10995  Spartina densiflora T. L. Ackerman 1964-5-10 46 Humboldt Across US 101 from Murray Field, Humboldt Bay Comment
  HSC4264  Spergularia macrotheca D. K. Smith 1968-11-9 54 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CAS-BOT-BC390303  Spergularia macrotheca var. macrotheca Robert F. Thorne; P. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy. 101 3 Comment
  HSC70955  Spergularia rubra Thomas W. Nelson 1977-6-15 3430 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  SBBG3128  Spiraea douglasii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  HSC34651  Spiraea splendens var. splendens K. Irwin 1975-8-16 Humboldt N Trinity Mtn. area Comment
  RSA249514  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-5 35154 Humboldt Samoa Dunes. 3 Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  UC176181  Spiranthes romanzoffiana Joseph P. Tracy 1913-9-9 4398 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC275578  Spiranthes romanzoffiana Joseph P. Tracy with H. E. Parks 1924-8-3 6767 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC59648  Spirodela polyrhiza Michael Dalke 1979-5-18 91 Humboldt Hwy. 101, Clam beach pond 0 Comment
  RSA33441  Stachys ajugoides Carl B. Wolf 1937-6-18 8896 Humboldt 1/2 mile S of Fortuna. 15 Comment
  JEPS63029  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UC1124934  Stachys ajugoides var. rigida H. L. Person 1932-7-16 T.H. 30 Humboldt highway n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  UC1602161  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UCLA71137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  UC25970  Stachys ajugoides var. rigida J. Burtt Davy 1899-6-21 5720 Humboldt Supply Creek North Coast Ranges, Hoopa Valley Comment
  UCLA71115  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  JEPS63019  Stachys arvensis H. B. Tucker 1935-4-5 Humboldt Arcata Bottom; Arcata 9 Comment
  POM283395  Stachys chamissonis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, 8 mi. S. of Trinidad. 15 Comment
  UC725501  Stachys chamissonis A. A. Heller 1923-7-9 13786 Humboldt between Eureka and Fortuna Comment
  CHSC109578  Stachys mexicana B. Castro; L. P. Janeway 2004-9-11 1475 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Low ground, flats partially shaded by alder trees festooned with English ivy; base of steep slopes of coatal terrace, back edge of beach stabilized dunes along old road. 4 Comment
  HSC70500  Stenanthium occidentale Gail Newton 1980-7-20 1618 Humboldt Near Bell Swamps 1426 Comment
  OBI22262  Stipa lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt Panther garp, on the road from Bull Crk to Upper Mattole 823 Comment
  HSC39717  Stipa miliacea D. E. Anderson, J. P. Smith 1971-6-28 - 1261 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC40560  Stipa occidentalis var. californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2927 Humboldt Along ridge W of Lassic Peak (Signal Peak). 1738 Comment
  CAS-BOT-BC269566  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-2 s.n. Humboldt Requa and vicinity. 6 miles E. up Klamath River on Terwah Road Comment
  CAS-BOT-BC269572  Symphoricarpos albus var. laevigatus Carl D. Duncan 1920-9-22 337 Humboldt Hoopa Comment
  RSA1901  Symphoricarpos albus var. laevigatus C. B. Wolf 1930-10-29 1038 Humboldt Old Coast Road at Honeydew Post Office. 152 Comment
  BLMAR211  Symphoricarpos mollis Jennifer Anthony-Wheeler 1996-7-9 211 Humboldt Pilots ridge., grws on ridges, slopes, open woods 1402 Comment
  HSC41199  Symphoricarpos mollis Thomas W. Nelson, Jane P. Nelson 1977-8-6 3703 Humboldt Along S side of Lassic Mtn. 1494 Comment
  HSC58035  Symphoricarpos mollis G. L. Clifton 1979-7-31 11870 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC95386  Symphyotrichum chilense Andrea Pickart 2002-7-9 174 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  CAS-BOT-BC98975  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1216 Humboldt Trinity Summit near Ranger Station 1828 Comment
  SEINET4335925 Image available Symphyotrichum subspicatum H. E. Parks, M. Jackson 24197 Humboldt Big Lgaoon Comment
  UC963847  Symphyotrichum subspicatum H. E. Parks and M. Jackson 1941-8-1 24197 Humboldt Big Lagoon North Coast Ranges Comment
  JEPS32727  Symphytum asperum Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  HSC89602  Synthyris reniformis M. Roantree 1985-4-28 17 Humboldt W side of Trinidad Head on an outcropping W of the trail Comment
  JEPS26265  Synthyris reniformis Joseph P. Tracy 1923-4-15 6190 Humboldt Redwood Creek at Berry's Redwood Creek; North Coast Ranges 274 Comment
  SEINET13750617  Synthyris reniformis J. P. Tracy 1906-4-15 2408 Humboldt Northern Coast Ranges, Bald Mt. near Korbel. 610 Comment
  UC1222774  Synthyris reniformis Joseph P. Tracy 1950-4-20 18614 Humboldt 1 mi w Dinsmore's (on Van Duzen River); Van Duzen River Comment
  UC532542  Synthyris reniformis Joseph P. Tracy 1924-3-9 6616 Humboldt Lawrence Creek, at crossing of the Kneeland Road; Lawrence Creek 457 Comment
  CAS-BOT-BC376732  Tanacetum bipinnatum A. A. Heller 1937-6-12 15900 Humboldt On the coast at Trinidad just below the road leading up to the lighthouse on Trinidad Head Comment
  SD39584  Tanacetum camphoratum Charlotte Hoak 1931-7-15 Humboldt Eureka Comment
  RSA89773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC376832  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  CAS-BOT-BC376896  Taraxacum officinale Harold E. Parks; Joseph P. Tracy 1949-6-25 11671 Humboldt Trinity Summit 1524 Comment
  HSC6259  Taraxacum officinale S. R. Johnson 1965-3-16 13 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC1595  Taxus brevifolia F. Morrell 1949-5-22 33 Humboldt E of Berry Summit , Hwy. 299 Comment
  POM319589  Taxus brevifolia Patricia Wilder 1968-8-22 4429 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
  UC54785  Taxus brevifolia P. E. Goddard Jul 1 1901-Aug 1 1901 127 Humboldt Mud Springs Trinity Summit Trail, Mud Springs Comment
  HSC49031  Tellima grandiflora Patricia Shesgreen 1978-5-5 63 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  HSC100656  Tellima grandiflora Carl C. Marshall May 1886 190 Humboldt Damp places near streams. Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  JEPS79992  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CHSC10101  Thermopsis macrophylla D. E. Anderson 1965-5-15 36926 Humboldt About 7 miles north of Hoops on Bloody Camp Prairie road. Comment
  CAS-BOT-BC81319  Thuja plicata Milo S. Baker 1927-8-21 2471 a Humboldt Cold Bog, in vicinity of Bald Mt. 914 Comment
  SD56861  Thuja plicata Darley F. Howe 1963-8-7 Humboldt 30 miles west of west entrance to 6 Rivers north fork on Highway #299 185 Comment
  UC1190156  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt 9 mi e of Arcata (hillside, along Highway 299); Highway 299 316 Comment
  CAS-BOT-BC88320  Thysanocarpus curvipes L. B. Kildale 1930-6-1 9763 Humboldt Klamath River at Bluff Creek. Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC55345  Tiarella trifoliata var. unifoliata Griswold, Butler 1979-7-12 7211 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC154082  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1908-6 2734 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC43174  Tiarella trifoliata var. unifoliata R. Sutherland 1976-8-13 13 .13876 Humboldt Whittemore Grove. 91 Comment
  UC136591  Tolmiea diplomenziesii Harley P. Chandler May 1901 1268 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC858947  Tolmiea diplomenziesii Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  RSA183607  Tolmiea menziesii E W Styskel 1963-5-19 39 Humboldt 3 miles S.E. of Korbel, on Snow Camp Road. 305 Comment
  UC1198061  Tonella tenella Joseph P. Tracy 1908-6-9 2660 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC97505  Tonella tenella Cara Witte 2007-5-22 74 Humboldt Cold Spring. 0.5 miles south of Titlow Hill. 1422 Comment
  HSC74725  Torilis arvensis Gail Newton 1981-8-6 2411 Humboldt Near Mad River. 1308 Comment
  HSC45069  Torilis arvensis R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  JEPS63936  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2000 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  UC902124  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  LA87902  Tracyina rostrata Joseph P. Tracy; 1916-6-20 4735 Humboldt Alder Point 304 Comment
  CAS-BOT-BC399991  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC99835  Triantha occidentalis subsp. occidentalis T. Jimerson, J. Pageau 1979-8-10 728 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC17928  Trientalis latifolia Paul Shields May 1955 Humboldt HSC Campus Comment
  HSC17942  Trientalis latifolia H. E. Parks, S. T. Parks Jun 1952 7548 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC31556  Trientalis latifolia Glenn McGourty 1974-5-11 46 Humboldt Along Maple Creek Rd. Comment
  HSC70781  Trientalis latifolia Gail Newton 1980-7-14 1515 Humboldt Near Deadman Ridge 1097 Comment
  UC495673  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 A Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  JEPS65949  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-10 9940 Humboldt 3 mi s Point of Cape Mendocino (sw slopes fronting the ocean); Northern Coast Ranges Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  UC1197494  Trifolium barbigerum J. P. Tracy 1910-5-22 3138 Humboldt immediate vicinity Eureka 0 Comment
  UC1197057  Trifolium bifidum var. decipiens J. P. Tracy 1900-6-5 846 Humboldt immediate vicinity Eureka 0 Comment
  UC1223502  Trifolium bifidum var. decipiens Joseph P. Tracy 1939-4-29 16256 Humboldt 2 mi below Orleans (nw side); Klamath River 121 Comment
  UC1541261  Trifolium breweri Harold E. Parks May 1935 4997 Humboldt Egg Point Trinidad Comment
  HSC100886  Trifolium cyathiferum Carl C. Marshall Jun 1887 453 Humboldt Jewett Creek. Comment
  HSC100530  Trifolium depauperatum Carl C. Marshall May 1887 436 Humboldt Kneeland Prairie. Comment
  UC495733  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-5-10 9948 Humboldt near Petrolia (Mattole River); Northern Coast Ranges 15 Comment
  UC1197051  Trifolium dubium Joseph P. Tracy 1914-6-14 4502 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC149767  Trifolium dubium Harley P. Chandler May 1901 1127 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD107930  Trifolium eriocephalum subsp. eriocephalum W. A. Williams 1956-6-1 s.n. Humboldt Kneeland Soil Series, Kneeland. 822 Comment
  UC495649  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC1223457  Trifolium fucatum Joseph P. Tracy 1935-5-25 13831 Humboldt Blocksburg Comment
  RSA90948  Trifolium fucatum var. fucatum F. W. Peirson 1926-7-12 7032 Humboldt Orick Comment
  CHSC69825  Trifolium incarnatum J. P. Smith; J. O. Sawyer, Tom Nelson 1972-4-22 Humboldt Freeway exit at Benbow. Planted by the Department of Highways. Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  SD73200  Trifolium incarnatum Darley F. Howe 1969-6-3 4623 Humboldt 13 miles north of Orick on Hwy 101 Comment
  HSC69635  Trifolium incarnatum R. Kalal 1980-5-18 23 Humboldt Along Hwy. 101 11 Comment
  POM214886  Trifolium longipes subsp. elmeri Joseph P. Tracy 1932-7-13 10525 Humboldt Trinity Summit, Corral Prairie. Comment
  UC1541572  Trifolium microcephalum Harold E. Parks May 1933 4314 Humboldt Spruce Cove Trinidad Comment
  HSC15147  Trifolium microdon J. W. Johnson 1962-5-10 1332 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  HSC15148  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC1197543  Trifolium microdon J. P. Tracy 1911-5-30 3202 Humboldt Bucksport Eureka vicinity 0 Comment
  UC1223319  Trifolium obtusiflorum Joseph P. Tracy 1948-6-13 18060 Humboldt Garberville 243 Comment
  UC1197503  Trifolium obtusiflorum Joseph P. Tracy 1903-5-24 1916 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC160990  Trifolium obtusiflorum Joseph P. Tracy 1911-7-10 3488 Humboldt near mouth of Willow Creek (along Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1223329  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt near Blue Lake (along Mad River) 15 Comment
  HSC100539  Trifolium repens Carl C. Marshall May 1886 205 Humboldt Everywhere. 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
  HSC84044  Trifolium subterraneum L. P. Janeway 1983-4-30 240 Humboldt 21 Comment
  UCD109390  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Hydesville. Comment
  UC1223542  Trifolium variegatum Joseph P. Tracy 1933-7-9 12649 Humboldt Brannan Mtn 1066 Comment
  UC1103456  Trifolium variegatum var. variegatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3588 Humboldt near Hydesville; Northern Coast Ranges Comment
  UC160989  Trifolium variegatum var. variegatum Joseph P. Tracy 1911-7-7 3368 Humboldt 3 mi nw Junction os Wilow Creek with Trinity river (near Beebe's Ranch); Northern Coast Ranges Comment
  UC1197510  Trifolium willdenovii Joseph P. Tracy 1922-4-30 6033 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  UC1223310  Trifolium willdenovii Joseph P. Tracy 1933-6-24 12615 Humboldt hills at n end lagoon; Big Lagoon Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC2149  Trifolium wormskioldii J. P. Tracy 1926-7-25 7750 Humboldt Big Lagoon Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  SEINET10577442  Trifolium wormskioldii var. wormskioldii Joseph P. Tracy 1911-6-25 Tracy 3246 Humboldt At Eureka 0 Comment
  RSA667224  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North coastal strand: North spit of Samoa Peninsula, 0.5 miles N of CA-255 bridge over Humboldt Bay. 6 Comment
  UC1100176  Triglochin maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1172 Humboldt salt marshes around Fields Landing 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
  HSC100504  Triglochin maritima Carl C. Marshall Jul 1886 230 Humboldt Salt marshes, etc. Comment
  HSC28003  Trillium albidum Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  CAS-BOT-BC133391  Trillium ovatum Alice Eastwood; John Thomas Howell 1934-4-11 1330 Humboldt Patrick's Point Comment
  SDSU11977  Trillium ovatum D. R. Harvey 1938-8-13 2253 Humboldt Redwood Park Comment
  UCR13422  Trillium ovatum T. Wetherwax 1973-4-1 730104- 01 Humboldt c. 2 mi north of US Hwy 299 on Fieldbrook Road 61 Comment
  HSC69786  Trillium ovatum R. Kalal 1979-5-5 37 Humboldt Fickle Hill Rd. 1.5 mi. E of 11th St. 183 Comment
  HSC89454  Trillium ovatum M. Roantree 1985-4-28 25 Humboldt NW side of Trinidad Head along trail Comment
  SD56735  Trillium ovatum Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  HSC49797  Trillium ovatum subsp. ovatum R. York 1979-4-9 215 Humboldt Behind HSU campus 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
  SEINET10459929  Triodanis perfoliata Unknown Blasdale 5888 B Humboldt KLAMATH RIVER 335 Comment
  HSC20858  Triphysaria eriantha Elrid H. Spinas 1948-6-16 56 Humboldt Horse Mtn. Comment
  HSC20856  Triphysaria eriantha subsp. eriantha Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  UC1222457  Triphysaria pusilla Joseph P. Tracy 1935-5-25 13905 Humboldt Dobbyn Creek 152 Comment
  UC902248  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1944-5-14 17469 Humboldt Eureka 6 Comment
  HSC31558  Triphysaria versicolor subsp. faucibarbata Glenn McGourty 1974-4-27 31 Humboldt Along side of Mattole River Comment
  UC902246  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17468 Humboldt Eureka 6 Comment
  HSC99524  Trisetum canescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 187 Humboldt Near North Trinity Mtn, 11. 5 mi. E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  UCD93304  Trisetum canescens A. A. Beetle; G. L. Stebbins 1942-6-1 3457 Humboldt 7 miles north of Weitchpec, in northern Humboldt County. Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  UC1541533  Trisetum cernuum Harold E. Parks 1934-5-16 4935 Humboldt Carlotta; near station 15 Comment
  HSC49994  Triteleia bridgesii M. A. Baker 1979-6-6 773 Humboldt N facing slope adjacent to rd. to Hospital Mtn. Comment
  CAS-BOT-BC526348  Triteleia laxa Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Near Ben Bow Resort Comment
  CAS-BOT-BC526354  Triteleia laxa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC94180  Triticum aestivum Gordon Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, E of the Community Center parking lot 3 Comment
  UC153964  Typha latifolia Joseph P. Tracy 1910-10-8 3168 Humboldt region about Humboldt Bay Brainard's Point; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC97590  Umbellularia californica Steven Lee 2004-4-26 32 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC99668  Urtica dioica subsp. gracilis Steven Lee 2004-4-6 10 Humboldt Arcata Community Forest, along Jolly Giant Creek. Comment
  SEINET202011  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka. 30 Comment
  UC32652  Vaccinium cespitosum E. Ethel Tracy 1901-9-5 1279 Humboldt Eureka Comment
  CAS-BOT-BC199304  Vaccinium ovatum Doris K. Kildale 1927-3-25 3008 Humboldt Humboldt Hill near Bucksport School House 15 Comment
  HSC7914  Vaccinium ovatum J. Pursell 1964-10-11 10111 Humboldt Patricks Point State Park, trail to wedding rock Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UCD166887  Vaccinium ovatum Colleen Rossier 2016-9-16 5 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #1. 601 Comment
  UC1537151  Vaccinium ovatum Gordon H. True Jr. 1936-5-11 467 Humboldt 8 mi w Miranda; Salmon Creek 152 Comment
  CAS-BOT-BC199415  Vaccinium parvifolium Harley P. Chandler 1901-5-1 1182 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC76055  Vancouveria hexandra Harley P. Chandler 1901-5-1 1162 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC37713  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 373 Humboldt Van Duzen Co. Park, off Hwy. 36, 6 mi. E of Carlotta 61 Comment
  HSC49387  Vancouveria hexandra R. York 1979-4-9 213 Humboldt Behind Humboldt State University Comment
  CAS-BOT-BC76093  Vancouveria planipetala M. S. Jussel 1931-5-2 113 Humboldt Garberville. Comment
  RSA120717  Vancouveria planipetala S. S. Tillett 1956-7-6 613 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  UC161073  Vancouveria planipetala Joseph P. Tracy 1911-7-7 3420 Humboldt Brannan Mountain viz. ridge n of Willow Creek between Willow and Campbell Creeks (near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  UC34905  Vancouveria planipetala Chesnut and Drew July 1888 Humboldt Comment
  CAS-BOT-BC527423  Veratrum californicum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Garlotta Humboldt Comment
  HSC65844  Veratrum insolitum Gail Newton 1980-6-16 154 Humboldt Near Monks Camp. 1097 Comment
  SD51275  Veratrum insolitum Darley F. Howe 1961-8-2 3124 Humboldt 24 miles east of Orick, on Bald Mountain Road. 914 Comment
  RSA698160  Verbascum thapsus J. R. Bruff 1937-8-17 944 Humboldt Richardson Grove. Comment
  UC585990  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-8-13 12965 Humboldt near Blue Lake (along Mad River) 15 Comment
  HSC21190  Veronica americana C. B. Wolf 1927-8-22 774 Humboldt Big Lagoon Comment
  SD88369  Veronica americana Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  HSC21189  Veronica americana Paul Shields 1955-6-16 Humboldt Humboldt State campus Comment
  JEPS16826  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain in Trinity Summit Range); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC92212  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC21208  Veronica persica J. W. Johnson 1962-4-8 1207 Humboldt Arcata, Mad River Co. Park Comment
  HSC99443  Vicia americana subsp. americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 93 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CHSC40209  Vicia benghalensis L. P. Janeway 1984-5-27 832 Humboldt On west-facing riprap of the Fortuna levee near the Sandy Prairie Road. On the east side of Eel River. 12 Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  HSC78754  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  UC175671  Vicia villosa subsp. villosa Joseph P. Tracy 1913-6-10 4085 Humboldt near Bridgeville (Burns ranch); Northern Coast Ranges 304 Comment
  HSC21760  Viola adunca G. N. Bos 1965-5-2 251 Humboldt 1 mi. E of Fernwood F.G.S. on Bald Mtn. Rd. 762 Comment
  HSC21770  Viola adunca J. F. Knezevich 1968-5-14 443 Humboldt 11 mi. S of Ferndale on the road to Cape Mendocino 305 Comment
  RSA46778  Viola adunca Doris Kildale Gillespie 1937-8-26 15342 Humboldt Christmas Prairie. Comment
  RSA249427  Viola beckwithii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA0006436  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., at Miller Spring. 1524 Comment
  UC1762513  Viola californica Milo S. Baker 11506 Humboldt South Fork Mountain, Lemonade Spring 1371 Comment
  HSC32130  Viola glabella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5592 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC164832  Viola glabella Joseph P. Tracy 1910-4-17 3118 Humboldt near forks of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  UC668250  Viola glabella Joseph P. Tracy 1933-7-16 12775 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC536499  Viola glabella Harley P. Chandler 1901-6-1 1285 Humboldt Hupa Indian Reservation, North Coast Ranges 1097 Comment
  UC502965  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC26636  Viola lobata subsp. integrifolia Thomas W. Nelson 1971-5-31 456 Humboldt Near the Mad River N of Dinsmore Comment
  UC1198428  Viola lobata subsp. integrifolia Joseph P. Tracy 1949-8-4 18421 1/2 Humboldt Mud Springs; Trinity Summit, Mud Springs 1341 Comment
  HSC34953  Viola ocellata Thomas W. Nelson 1975-5-24 1867 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1198431  Viola ocellata Joseph P. Tracy 1948-5-31 18007 Humboldt Harris 762 Comment
  UC1198437  Viola ocellata Joseph P. Tracy 1933-5-21 12210 Humboldt Bridgeville 198 Comment
  CDA36588  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt Arcata; southwest corner of 10th & I Street. Comment
  HSC104092  Viola sempervirens Monica Rodriguez, William A. Worley 2015-2-21 6 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 134 Comment
  HSC21854  Viola sempervirens R. A. Eagle 1964-5-15 3 Humboldt H.S.C. campus, 300 yds. from water tank behind field house Comment
  HSC59449  Viola sempervirens Kenneth Clark 1979-3-31 2 Humboldt 0.7 mi. E of the end of Granite Ave., Arcata 46 Comment
  CAS-BOT-BC203048  Vitis californica Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC198759  Vulpia bromoides Ira L. Wiggins 1932-7-25 5897 Humboldt Roadsides and fields near McKinleyville. Comment
  HSC9829  Vulpia bromoides R. D. Modafferi 1965-5-13 73 Humboldt 1.4 mi. N of Trinidad on Trinity St. 305 Comment
  HSC9839  Vulpia bromoides J. W. Johnson 1962-4-18 1266 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  CAS-BOT-BC198762  Vulpia bromoides Doris K Niles 1950-6-1 5 Humboldt Island in Eel River, Niles field. Comment
  SEINET11683266  Vulpia bromoides K. S. Erdman 1970-1 4809 Humboldt Gold Bluff Beach about 3 mi NW of Berry Glen and US 101 (Redwood N.P.) Comment
  HSC47616  Vulpia microstachys J. P. Smith 1977-4-23 9020 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC70774  Vulpia myuros R. York 1980-5-17 552 Humboldt Near Le Perron Peak 1066 Comment
  HSC9929  Vulpia myuros C. R. Ball, J. P. Tracy, H. E. Parks 1932-5-17 1344 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  HSC9939  Vulpia myuros R. H. Berg 1963-4-18 54 Humboldt Arcata Bottoms, Arcata. Comment
  UC525656  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  HSC99406  Whipplea modesta K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 55 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC74461  Woodwardia fimbriata M. A. Baker 1980-5-18 1357 Humboldt Near Black Mtn. 792 Comment
  JEPS60112  Woodwardia fimbriata W. L. Jepson 1932-7-30 16453 Humboldt Bull Creek, on bluff Bull Creek 121 Comment
  CAS-BOT-BC382931  Wyethia angustifolia Doris K. Kildale 1926-5-2 1897 Humboldt Willow Creek Flat 152 Comment
  HSC32231  Wyethia angustifolia J. O. Sawyer 1970-6-24 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1223303  Wyethia angustifolia Joseph P. Tracy 1942-6-23 17222 Humboldt open place on ridge top 1 mi w Mud Springs (in serpentine formation); Trinity Summit 1158 Comment
  JEPS32100  Wyethia angustifolia W. L. Jepson 1903-6 2201 Humboldt Bells Spring Ridge (= Mail Ridge) Bells Spring Ridge 1005 Comment
  HSC98069  Wyethia longicaulis Cara Witte 2007-7-19 546 Humboldt Buck Flat. 1482 Comment
  UCD137004  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  CAS-BOT-BC527081  Xerophyllum tenax Doris K. Kildale 1925-9-5 1271 Humboldt Wire Grass Prairie, mid way on road from Orick to Martin's Ferry Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  UC1225856  Zigadenus micranthus var. micranthus Joseph P. Tracy 1947-7-9 17860 Humboldt Horse Mountain 1432 Comment
  JEPS110509  Zostera japonica Gordon Leppig and David Couch 2006-11-17 2396 Humboldt Arcata Bay, mudflat W of City of Arcta oxidtion ponds, upper intetidal zone, 2 m from dike Comment



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