Search Results — 2000 specimen records retrieved (1355 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC99538  Abies concolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 203 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-BC78057  Abies grandis Doris K. Kildale 1927-2-21 2958 Humboldt Bucksport, back of cemetery 30 Comment
  HSC28258  Abies grandis Gary S. Lester 1973-12-2 57 Humboldt Humboldt State University Campus, Arcata Comment
  HSC49509  Abronia latifolia R. York 1979-5-18 298 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC93532  Abronia latifolia Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  SEINET11941806  Abronia latifolia K. S. Erdman 1970-1 4811 Humboldt Gold Bluffs Beach about 3 mi NW of Berry Glen on US 101, Prairie Creek State Park Comment
  UC1360498  Acaena novae-zelandiae D. W. Cooper 1967-6-30 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  SBBG34169  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt ridge just SE of USFS Nursery, ca. 2 mi SE of Crannell and ca. 4 mi E of US Hwy 101 Comment
  UC502939  Acer glabrum var. glabrum Joseph P. Tracy 1932-7-12 10475 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  POM89165  Acer glabrum var. torreyi Joseph P. Tracy 1919-9-23 5291 Humboldt Trinity Summit 1829 Comment
  UC1115826  Acer macrophyllum Joseph P. Tracy 1939-10-15 16518 Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCD128345  Achillea millefolium James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell. 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
  UC419037  Achlys californica H. E. Parks May 1930 752 Humboldt along Van Duzen R. Van Duzen R. Comment
  CAS-BOT-BC400024  Achlys triphylla Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC400019  Achlys triphylla Doris K. Kildale 1926-4-30 1923 Humboldt Camp Grant, South Fork of Eel River Comment
  RSA452604  Achlys triphylla Anstruther Davidson 1927-01 s.n. Humboldt [Unspecified] Comment
  UC526748  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  UC70821  Achnatherum lemmonii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5680 Humboldt Hoopa Mt. Comment
  UC526759  Achnatherum occidentale subsp. californicum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9052 Humboldt near Blake lookout (along summit); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCD103751  Acmispon denticulatus Bill Brooks 1948-6-1 s.n. Humboldt Van Duzen River, 3 mi. W of Bridgeville. Comment
  SEINET957914  Acmispon micranthus J. P. Tracy 1917-1 4795 Humboldt Mouth of Little River. 6 Comment
  HSC44755  Acmispon micranthus Maralyn O'Meara 1972-6-8 84 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  UC1222584  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt n.e. side of top Grouse Mt. 1524 Comment
  CAS-BOT-BC391410  Aconitum columbianum subsp. columbianum Joseph P. Tracy 1932-7-10 10393 Humboldt Klamath Mountains, Trinity Summit. Meadow at Corral Prairie 1524 Comment
  HSC76049  Actaea rubra Overton, Butler 1979-8-2 12542 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS60386  Actaea rubra W. L. Jepson 1932-7-29 16445 Humboldt Glenbrook Van Duzen R., Grizzly Flat Comment
  HSC76345  Adenocaulon bicolor Denis Kearns 1981-7-23 383 Humboldt Near Whiteys Peak 732 Comment
  UC492186  Adenostoma fasciculatum W. L. Jepson and J. P. Tracy 1932-8-7 10337 Humboldt along rd. between Harris and Chamise Mt. (at point 3 mi. n. of s. boundary of Humboldt Co.); North Coast Ranges 762 Comment
Read comments
Oct 24 2018
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  UCR123954  Adiantum aleuticum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6969 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC955  Adiantum aleuticum J. Wendell Howe 1930-9-9 Humboldt 3 mi. SW of Fieldbrook Comment
  HSC958  Adiantum aleuticum S. J. Moore 1965-5-12 18 Humboldt Gold Beach Comment
  HSC57973  Agastache urticifolia G. L. Clifton, Griswold 1979-7-31 11698 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC194431  Ageratina occidentalis P. E. Goddard Jun 1 1906-Jul 1 1906 638 Humboldt North Fork Eel River Comment
  HSC57685  Agoseris aurantiaca G. L. Clifton, Griswold 1979-7-25 10901 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SEINET202623 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt Garberville north end of town. Comment
  UC1125463  Agoseris grandiflora var. grandiflora H. L. Person 1932-7-20 19459 Humboldt Fieldbrook Eureka Quadrangle, Fieldbrook Comment
  UC1222932  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-8-7 18446 Humboldt Box Camp, in meadow Trinity Summit 1463 Comment
  SEINET6998445  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near west end of Bald Hills, southeast of Orick. Comment
  UC1199486  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1938-6-9 15888 Humboldt top of ridge 3 mi w of Harris 914 Comment
  UC165756  Agoseris heterophylla var. heterophylla J. P. Tracy 1903-5-22 1875 A Humboldt on grassy hills Alder Point 152 Comment
  UC249886  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC8778  Agrostis densiflora J. P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon 6 Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC127299  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Klamath Mountains. Wet Meadow at Corral Prairie. 1524 Comment
  HSC96959  Agrostis exarata H. E. Parks May 1934 1161 Humboldt Trindad. Comment
  UC1103379  Agrostis exarata Joseph P. Tracy 1935-7-25 14232 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  UC249864  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC552751  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad 3 Comment
  HSC64758  Agrostis gigantea Bruce Gordon 1978-8-4 122 Humboldt Redwood National Park, about 0.15 mi. NW of junction of Bald Hills Rd. and K & K Rd., in Lyon's Prairie. 774 Comment
Read comments
Jan 26 2016
  CAS-BOT-BC139495  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  RSA129593  Agrostis hallii H. S. Yates 1936-6-18 5737 Humboldt 1 mile NE of Orick 46 Comment
Read comments
Nov 24 2011
  RSA293101  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with Hwy. 36 549 Comment
Read comments
Nov 3 2011
  UC1103525  Agrostis hallii Joseph P. Tracy 1912-7-26 3866 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC33755  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6175 Humboldt near Ferndale Comment
  CHSC114091  Agrostis idahoensis Jennifer Buck; Danielle Roach 2009-8-19 SFM 06 C Humboldt Kerlin Fen, South Fork Mountain; UTM Zone 10N, 453899E, 4494304N. 1633 Comment
  RSA10019  Agrostis idahoensis Joseph P. Tracy 1932-7-16 10608 Humboldt Klamath Mtns., Trinity Summit, Corral Prairie 1524 Comment
  UCD53046  Agrostis microphylla Joseph P. Tracy 1938-7-11 16050 Humboldt near Samoa, on Humboldt Bay. 6 Comment
  UC526876  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8933 Humboldt in wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC49053  Agrostis pallens Thomas Nelson, Jane Nelson 1978-7-3 4414 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCD53175  Agrostis pallens Don Hagar 1957-8-16 s.n. Humboldt Humboldt - Trinity County border: north slope of Trinity Mtn., 15 miles east of Hoopa. 1828 Comment
  HSC8802  Agrostis stolonifera John Warner Hosking 1966-8-6 Humboldt Aracata, HSU campus, near Wildlife Bldg. Comment
  UC187294  Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka Northern Coast Region 0 Comment
  UCD53503  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  BLMAR146  Aira caryophyllea Donald Hazlett 1994-6-7 146 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  SEINET7594529 Image available Aira caryophyllea H. E. Parks, S. T. Parks 1936-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC138327  Aira caryophyllea var. caryophyllea A. A. Heller 1923-7-8 13765 Humboldt At a State redwood camp 10 miles south of Dyerville. Comment
  SEINET3917484  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak.; 0 Comment
  HSC12537  Allium acuminatum J. Allen DeCOU 1899-6-21 258 Humboldt Supply Creek Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC44276  Allium amplectens Brad Klipfel 1973-7-1 117 Humboldt N Trinity Mtn. 1860 Comment
  HSC39430  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2872 Humboldt Area at Goat Hill. 1666 Comment
  HSC36496  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1895 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CAS-BOT-BC476627  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 1/2 mi. so. of Centerville. 45 Comment
  HSC100703  Allocarya diffusa Carl C. Marshall Jun 1887 465 Humboldt Harris and Garberville Rd. Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  CAS-BOT-BC170943  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt Dyerville Brdige on South Fork of Eel River 45 Comment
  UC503096  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant Northern Coast Ranges, Eel River (along river) 60 Comment
  CAS-BOT-BC169545  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt Mattole River, near Petrolia 15 Comment
  UC503098  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC1103309  Alopecurus aequalis Joseph P. Tracy 1923-6-27 6381 Humboldt near the S. Fork Trinity R. Valley (shores of Lack Pond); Northern Coast Ranges, , Lack Pond 182 Comment
  RSA129283  Alopecurus geniculatus H. L. Person 1932-5-11 19411 Humboldt Near Arcata 0 Comment
  RSA181868  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19523 Humboldt back of the Everett Beck house (formerly George Gray) bed of Goose Lake. Hydesville Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  UCD55924  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  SEINET2031135 Image available Ambrosia bipinnatifida J. P. Tracy 1901-1 1265 Humboldt Sand hills of ocean beach at Samoa, opp. Eureka. Comment
  CAS-BOT-BC13708  Ambrosia chamissonis Le Roy Abrams 1916-7-18 6118 Humboldt Arcata to Trinidad Comment
  RSA245279  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad river beach co. park Comment
  SD39975  Ambrosia chamissonis Edith A. Purer 1932-7-27 4160 Humboldt Near Samoa on open sand dunes Comment
  UC582626  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15687 Humboldt sand dunes, near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1541640  Ambrosia chamissonis Harold E. Parks 1941-8-1 24181 Humboldt Big Lagoon Causeway Comment
  HSC102083  Amelanchier alnifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 987 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC70328  Amelanchier alnifolia M. A. Baker 1980-6-8 1883 Humboldt Near Buck Flat. 1554 Comment
  UC1198749  Amelanchier utahensis Joseph P. Tracy 1921-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC14217  Amelanchier utahensis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA296725  Ammophila arenaria J. P. Smith, Thomas W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  SACT000320  Ammophila arenaria D. Shillingbury 1963-5-11 Humboldt Coastal strand Comment
  HSC3519  Amsinckia intermedia J. W. Johnson 1962-4-21 1286 Humboldt Arcata; William Lanphere Farm about building Comment
  HSC89440  Anagallis arvensis P. A. Daly 1984-7-16 29 Humboldt Trinidad Head 61 Comment
  UC165847  Anaphalis margaritacea J. P. Tracy 1900-8-5 916 Humboldt immediate vicinity Eureka 0 Comment
  SEINET11855259  Anaphalis margaritacea Unknown 1933-1 Humboldt Eureka Comment
  UC933413  Anaphalis margaritacea Annie M. Alexander and Louise Kellogg 1948-9-3 5572 Humboldt Trinity River, Klamath River Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1125863  Anemone deltoidea A. E. Wieslander 1931-5-17 193 Humboldt Orick-Orleans Rd Orick Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC391778  Anemone deltoidea Lillian Mott 1976-6-29 15 LM75 Humboldt Lady Bird Johnson Redwood Grove, Prairie Creek 60 Comment
  UC1196189  Anemone deltoidea Joseph P. Tracy 1923-5-13 6200 Humboldt Strong's Station, on Van Duzen River Strong's Station; North Coast Ranges 60 Comment
  CAS-BOT-BC221417  Angelica hendersonii L. R. Abrams 1927-9-1 12065 Humboldt Stone Lagoon Comment
  UC1197379  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  JEPS16069  Angelica hendersonii W. L. Jepson 1902-8-3 2133 Humboldt Loleta, Expedition from Ukiah to the Hupa Indian Reservation Loleta 60 Comment
  UCD127225  Angelica hendersonii Joseph DiTomaso 1980-6-29 1636 Humboldt south side of Elkshead. 2 miles north of Trinidad. Comment
  JEPS14245  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  SD109161  Angelica lucida Joseph M. DiTomaso 1980-6-7 1572 Humboldt Elkshead, north of Trinidad. Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC485304  Anisocarpus madioides J. P. Tracy 1903-5-24 1909 Humboldt Alder Point 304 Comment
  UC1541539  Anthoxanthum odoratum Harold E. Parks May 1933 4301 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove Comment
  UCD56232  Anthoxanthum odoratum Linda M. Barker 1976-4-30 1402 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD56274  Anthoxanthum odoratum J. W. McClellan 1924-5-26 s.n. Humboldt from Bridgeville. Comment
  UC1198737  Aphanes occidentalis J. P. Tracy 1904-4-3 2005 Humboldt immediate vicinity Eureka 0 Comment
  UC154129  Aphanes occidentalis J. P. Tracy 1904-4-24 2033 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UCD143195  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  POM132652  Apiastrum angustifolium L. R. Abrams 1916-7-11 6030 Humboldt Mouth of Grizzly Creek Comment
  HSC41262  Apocynum androsaemifolium Brad Klipfel 1974-7-23 454 Humboldt Ridge running E of Horse Mtn. Comment
  JEPS49816  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt trail along e. bank of S. Fork of Eel N. Dyerville Flat; S. Fork Eel R., Bull Creek Region, N. Dyerville Flat Comment
  CAS-BOT-BC392167  Aquilegia formosa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  SEINET12094713  Aquilegia formosa var. truncata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -310 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC32155  Arabis breweri var. breweri D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC57418  Arabis divaricarpa var. interposita G. L. Clifton, Griswold 1979-7-26 10181 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC58192  Arabis glabra G. L. Clifton, Griswold 1979-8-2 12289 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC73782  Arabis glabra Gail Newton 1980-6-28 701 Humboldt Near Mad River Butte. 1536 Comment
  RSA21582  Aralia californica C. B. Wolf 1937-9-8 s.n. Humboldt North Coast Range, Bull Creek- Petrolia Road, 12 mi W of Redwood Highway 457 Comment
  UC162626  Aralia californica Joseph P. Tracy 1911-7-5 3320 Humboldt near its mouth Willow Creek (tributary of Trinity R.); Northern Coast Ranges 304 Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  RSA29328  Arbutus menziesii E. K. Balls, P. C. Everett, B. K. Balls 1953-10-11 18628 Humboldt 3 mi. n. of Garberville, Hwy 101. 152 Comment
  UCD117472  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1222871  Arctium minus Joseph P. Tracy 1948-9-20 18223 Humboldt halfway between Hoopa and Weitchpec Comment
  JEPS44153  Arctium minus Milo S. Baker 1923-8-25 444 Humboldt 41 mi s, along highway in Redwood grove Alton; North Coast Comment
  JEPS38853  Arctostaphylos X media Joseph P. Tracy 1923-3-31 6171 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  SEINET2033691 Image available Arctostaphylos canescens Joseph P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  CAS-BOT-BC25215  Arctostaphylos canescens subsp. canescens Clarence Roy Quick 1959-7-24 96 .59-40. Humboldt Bee Mt., ca. 12 miles SW of Orleans Comment
  CAS-BOT-BC23785  Arctostaphylos columbiana Doris K. Kildale 1927-2-22 2980 Humboldt Kneeland Prairie at juncion of old and new roads 609 Comment
  CAS-BOT-BC23816  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt Fickle Hill, 6 mi. SE of Arcata 609 Comment
  JEPS38945  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  UC1198652  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6143 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point Comment
  UCD50745  Arctostaphylos columbiana Roman Gankin 1965-8-5 543 A Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  RSA12534  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-7-2 5904 Humboldt 4 mi. from Snow Camp on rd. to Bald Mt. (Mts. east of Korbel). 1159 Comment
  CAS-BOT-BC24475  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 mi. from U.S. 101 en route to Hoopa. 929 Comment
  HSC100468  Arctostaphylos manzanita Carl C. Marshall Apr 1886 397 Humboldt Hoopa Valley. Comment
  HSC27128  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 1973-2-10 5840 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  RSA633026  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27804 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  UC32687  Arctostaphylos manzanita subsp. manzanita Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC45881  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  JEPS38940  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-18 10722 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC32672  Arctostaphylos nevadensis Chesnut and Drew 1888-7-21 Humboldt e slope S. Fork Mt. Comment
  CAS-BOT-BC40028  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  UCD52854  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1175 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  UCD52862  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1173 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  SEINET11998376  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1988-1 6360 Humboldt 21 mi up Bald Hill Rd from US 101 en route to Hoopa 975 Comment
  HSC99394  Arctostaphylos nevadensis subsp. nevadensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 43 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-BC46632  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain. 1432 Comment
  CAS-BOT-BC46634  Arctostaphylos patula Henry M. Pollard 1946-8-28 s.n. Humboldt Orleans Mt., near summit. 1828 Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  HSC40857  Arctostaphylos patula Thomas W. Nelson 1976-7-9 2990 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC48821  Arctostaphylos patula Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 32 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC585901  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC43992  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17503 Humboldt Eureka 45 Comment
  CAS-BOT-BC47207  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka penisnula. Comment
  HSC12226  Arctostaphylos uva-ursi Gary J. Stebbins 1970-4-18 68 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  RSA12763  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 6114 Humboldt Samoa. 15 Comment
  UC1196878  Arctostaphylos uva-ursi J. P. Tracy 1909-10-7 3111 Humboldt Gans Prairie 457 Comment
  CAS-BOT-BC48256  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1926-8-15 2549 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC526230  Arctotheca calendula Larry Pries; Charles Lawrence 1989-6-8 s.n. Humboldt Larry Pries dairy, W of Ferndale, on Centerville Beach Rd Comment
  HSC94121  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Union St. at 7th St. South of Phillips House 24 Comment
  JEPS79810  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Brett Hole Trinity summit, Brett Hole (Head of) 1828 Comment
  HSC48771  Armeria maritima subsp. californica Brad Klipfel 1975-5-22 618 Humboldt Near city of Eureka airport S of Samoa Comment
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  RSA12448  Arnica discoidea C. B. Wolf 1934-7-1 5845 Humboldt 2.7 mi from Briceland on rd. to Shelter Cove. 91 Comment
  UC166070  Arnica discoidea Joseph P. Tracy 1911-7-11 3513 Humboldt hills near Supply Creek; Hoopa Valley 182 Comment
  HSC100423  Arnica parviflora Carl C. Marshall Jun 1886 281 Humboldt Mud Spring Camp. Comment
  CDA1730  Arrhenatherum elatius var. bulbosum T. C. Fuller 1966-10-4 15237 Humboldt Northwest portion of Arcata. 0 Comment
  HSC75260  Artemisia douglasiana J. O. Sawyer, M. A. Ericksen 1980-8-18 4054 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC1199394  Artemisia douglasiana Joseph P. Tracy 1933-8-6 12946 Humboldt French Camp Ridge 1066 Comment
  BLMAR665  Artemisia douglasiana Jennifer Wheeler 2012-6-12 665 Humboldt King range, strawberry rock grazing allotment 253 Comment
  UC535739  Artemisia dracunculus Eleanor Armstrong 1190 Humboldt Richardson Grove Comment
  RSA289423  Artemisia dracunculus Lyman Benson 1929-7-16 1824 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC400538  Asarum caudatum Alice Eastwood; John Thomas Howell 1937-6-23 4775 Humboldt Near Dinsmore's Comment
  UC302986  Asarum caudatum Joseph P. Tracy 1926-5-22 7512 Humboldt Prairie Creek 152 Comment
  HSC47953  Asclepias cordifolia Brad Klipfel 1974-7-23 475 Humboldt Horse Mtn. Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC98022  Asclepias speciosa Cara Witte 2007-7-3 406 Humboldt White Oak Opening. 1242 Comment
  HSC1052  Aspidotis densa P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  SEINET3868725  Aspidotis densa Thomas Nelson, Jane P. Nelson 1976-7-1 2906 Humboldt North of Bear Creek.; 0 1463 Comment
  UCD137278  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Ammon Ridge Rd., 1 k east of Titlow Hill Rd. 1432 Comment
  UCR51819  Aster occidentalis var. occidentalis Thomas W. Nelson, J. Nelson 1977-9-3 3726 Humboldt Along creek draining north from pond above Alder Spring 1445 Comment
  RSA167196  Aster oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt Roadside, about 3 miles southwest of Orleans Comment
  CAS-BOT-BC27578  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt 4 miles S of Miranda Comment
  HSC14581  Astragalus rattanii var. rattanii Jana Kattenhorn 1970-10-28 145 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  UC175639  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-5-4 4051 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC495726  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt nw slope of Buck Mountain Buck Mountain (lower foothills); Northern Coast Ranges, Buck Mountain 762 Comment
  UCD105332  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  HSC76042  Asyneuma prenanthoides Overton, Butler 1979-8-2 12569 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  OBI1147  Athyrium filix-femina Robert J. Rodin 1962-9-5 6979 Humboldt Prairie Creek State Park Comment
  CAS-BOT-BC69451  Athyrium filix-femina subsp. cyclosorum L. B. Kildale 1930-7-7 10264 Humboldt Chaparral Mt. at Bug Creek. 914 Comment
  HSC54545  Athyrium filix-femina var. cyclosorum Overton, Butler 1979-7-23 9532 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC197924  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC902198  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1949-8-26 18512 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  UC922658  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  UCD56239  Avena barbata A. A. Beetle; G. L. Stebbins. 1942-6-3 3485 Humboldt Near Garberville. 1.4 miles on road to Harris. Comment
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Jan 21 2009
  UCD56463  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC249846  Baccharis glutinosa Joseph P. Tracy 1924-8-10 6810 Humboldt Van Duzen River, Blue Slide 91 Comment
  CAS-BOT-BC98028  Baccharis pilularis Elmer I. Applegate 1923-9-12 3990 Humboldt Stone Lagoon Comment
  UC204752  Baccharis pilularis Joseph P. Tracy 1918-9-29 5107 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  POM52329  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1910-4-9 1157 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  HSC41913  Barbarea orthoceras M. A. Baker 1977-4-23 174 .5 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC127824  Bellis perennis Harley P. Chandler May 1901 1128 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC48158  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  UC1198387  Berberis aquifolium Joseph P. Tracy 1940-8-25 16711 Humboldt High Prairie Bald Mt 1066 Comment
  HSC72981  Berberis aquifolium var. repens Gail Newton 1980-7-22 1676 Humboldt Near Devils Backbone 1554 Comment
  HSC3352  Berberis nervosa Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel 46 Comment
  UC1222894  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt near Slate Creek (Klamath River, below Orleans 8 mi); Klamath River 121 Comment
  CAS-BOT-BC66262  Blechnum spicant E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade, S.E. of Orick Comment
  CAS-BOT-BC66270  Blechnum spicant Doris K. Kildale 1928-12-30 6885 Humboldt Phillipsville Comment
  CHSC26466  Blechnum spicant J. Detzer 1977-4-8 3 Humboldt S end of Patricks Point State Park, ca. 0.2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  HSC26828  Blechnum spicant Clifton Raymond Chesbrough 1973-6-19 73 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UCSB30622  Blechnum spicant Edwards, David 1974-9-2 Humboldt South side of dirt road in "Arcata Community Forest" ca. 0.5 miles from junction with Fickle Hill Rd., ca. 0.25 miles E of junction of Park Ave. and Fickle Hill Rd., Arcata. 97 Comment
  JEPS101806  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-9-15 12290 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  HSC31637  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  RSA0078565  Boschniakia strobilacea Harley P. Chandler 1901-06 1300 Humboldt Hupa Indian Reservation. 304 Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  UC955469  Botrychium multifidum Milo S. Baker 1923-7-15 13 Humboldt Eureka Comment
  HSC913  Botrychium multifidum D. K. Walker 1968-11-6 Humboldt Clam Beach, old railroad cut below Vista Point lookout on Hwy. 101 about 1.5 mi. S of Trinidad Comment
  HSC56002  Boykinia major Overton, Butler 1979-7-31 11453 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  POM89211  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon, south of Orick. Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  UC420421  Boykinia occidentalis Mrs. M. H. Manning 1901-7-31 323 Humboldt Eureka Trail Comment
  HSC100718  Brassica campestris Carl C. Marshall May 1886 206 Humboldt Fields. Comment
  HSC38345  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  HSC41849  Brassica rapa K. Irwin 1977-4-23 281 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  CAS-BOT-BC106290  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River, near Strong's Station Comment
  RSA94123  Brickellia californica F. W. Peirson 1926-7-13 7048 Humboldt Mad River, vicinity of Blue Lake. Comment
  HSC33766  Briza maxima John S. Palmer 1975-5-24 368 Humboldt Off Samoa Blvd., across from boat landing Comment
  HSC83441  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward Comment
  RSA244953  Briza maxima Glen I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater lagoon. Comment
  HSC22743  Briza minor Dennis Anderson 1970-5-21 5082 Humboldt Scotia Bluffs Comment
  RSA183611  Briza minor G. Bos 1965-5-15 252 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UC1103342  Briza minor Joseph P. Tracy 1919-5-31 5141 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC1541547  Briza minor Harold E. Parks May, 1933 4302 Humboldt Spruce Cove Trinidad Comment
  HSC23716  Brodiaea elegans subsp. elegans Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  CAS-BOT-BC486504  Brodiaea stellaris Doris K. Kildale 1925-6-14 681 Humboldt Head of South Yager. bald hills 914 Comment
  SEINET11675365  Bromus carinatus J. P. Tracy 1951-1 19569 Humboldt Snow Camp-Twin Lakes vicinity Comment
  CAS-BOT-BC149565  Bromus carinatus var. carinatus Harold E. Parks; Joseph P. Tracy 1935-6-8 11269 Humboldt Trinidad. 60 Comment
  UC1103280  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-18 5326 Humboldt 5 mi above mouth of South Fork (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  UC1103285  Bromus carinatus var. carinatus J. P. Tracy 1900-7-4 892 Humboldt opposite Eureka (Ocean Beach at Somoa); Samoa, Ocean Beach Comment
  UC1145160  Bromus carinatus var. carinatus Joseph P. Tracy 1950-6-15 18786 Humboldt 7 mi n of Harris (Mail Ridge); Mail Ridge 1036 Comment
  UC37585  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-11 5408 Humboldt Summit above Hubbard's Station Comment
  CAS-BOT-BC149161  Bromus carinatus var. marginatus Joseph P. Tracy 1935-7-25 14233 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  CDA18212  Bromus carinatus var. maritimus G. D. Barbe, T. C. Fuller 1974-6-17 1840 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  UC207700  Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt along Eel River from South Fork to Scotia, Holmes Flat Eel River; Northern Coast Ranges, , Holmes Flat 60 Comment
  HSC35281  Bromus diandrus J. D. Ackerman, A. M. Montalvo 1975-6-22 491 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC9279  Bromus diandrus H. S. Haskell 1966-4-23 23 Humboldt Near Samoa. Comment
  HSC9295  Bromus diandrus R. H. Berg 1963-5-12 72 Humboldt King Salmon, S of Eureka. Comment
  JEPS72930  Bromus hordeaceus Lincoln Constance 1934-5-26 673 Humboldt Bull Creek Region, South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, , Dyerville Bridge 45 Comment
  CAS-BOT-BC162446  Bromus laevipes L. R. Abrams 1918-6-16 7143 Humboldt Willow Creek. Comment
  UC526728  Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CHSC10120  Cakile maritima J. W. Johnson 1962-4-29 1299 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC49024  Cakile maritima Patricia Shesgreen 1978-8-19 143 Humboldt Mad River Beach, Arcata Comment
  UCD114941  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 miles west of Arcata. Comment
  RSA12540  Calamagrostis C. B. Wolf 1934-7-2 5898 Humboldt wet meadow at small lake at Snow Camp. (Mts. east of Korbel) Comment
  UC1145050  Calamagrostis koelerioides Joseph P. Tracy 1936-7-26 15050 Humboldt Willow Creek Canyon; along Trinity Hwy 457 Comment
  HSC17635  Calandrinia ciliata R. T. Forester 1963-5-6 48 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  RSA729024  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35345 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  UC144083  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-6-13 2995 Humboldt opposite Blue Lake (in Mad River Valley); Northern Coast Ranges, Mad River Valley 30 Comment
  UC1103689  Callitriche marginata J. P. Tracy 1909-5-2 2957 Humboldt Immediate vicinity Eureka 0 Comment
  CAS-BOT-BC80384  Calocedrus decurrens G. A. Coleman 1901-7-24 s.n. Humboldt Head of Supply Creek, Hoopa Indian Reservation Comment
  HSC70641  Calocedrus decurrens R. York 1980-5-18 592 Humboldt Near Black Mountain 792 Comment
  UC1225854  Calochortus amabilis Joseph P. Tracy 1948-6-13 18050 Humboldt Harris 609 Comment
  CAS-BOT-BC488452  Calochortus amabilis Elizabeth Parsons Hawver 1915-6-1 n.s. Humboldt Carlotto Comment
  UC1601652  Calochortus coeruleus Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5744 1/2 Humboldt Trinity Trinity Summit Comment
  JEPS61643  Calochortus coeruleus Hilda W. Grinnell 9 Humboldt McKay Camp South Fork Mountain 1676 Comment
  UC1197689  Calochortus luteus Joseph P. Tracy 1912-7-31 3891 Humboldt nw slope Buck Mountain; Northern Coast Ranges, , Burr Valley 1066 Comment
  HSC15345  Calochortus tolmiei Class 1937-4-29 Humboldt Miranda Comment
  HSC15383  Calochortus tolmiei D. E. Anderson 1963-5-25 2479 Humboldt 2-3 mi. N of Capetown Comment
  HSC67176  Calochortus tolmiei Thomas W. Nelson, James Nelson 1980-6-10 5427 Humboldt Along NE side of Red Mtn. 1433 Comment
  RSA113893  Calochortus tolmiei E. K. Balls, Lee W. Lenz 1955-5-15 20738 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  JEPS17829  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  SEINET12054002  Calochortus vestae J. P. Tracy 1950-1 18868 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 152 Comment
  RSA12547  Caltha howellii Carl B. Wolf 1934-7-2 5891 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC127837  Calycadenia fremontii Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC176850  Calycadenia fremontii Joseph P. Tracy 1911-7-4 3282 Humboldt near, west side of Trinity River Willow Creek; Northern Coast Ranges, Trinity River 243 Comment
  UC205208  Calycadenia fremontii Joseph P. Tracy 1920-8-15 5350 Humboldt mouth of Salmon River Northern Coast Ranges, Klamath River 243 Comment
  HSC16572  Calypso bulbosa Norman H. Moe 1962-4-26 Humboldt Lanphere's Place Comment
  UC1196478  Calypso bulbosa Joseph P. Tracy 1918-5-1 4900 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD138886  Calypso bulbosa var. occidentalis Linda M. Barker 1976-3-22 1347 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC55149  Calyptridium monospermum G. L. Clifton, Terry Griswold 1979-8-1 12075 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SEINET200994  Calystegia Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  HSC74028  Calystegia occidentalis subsp. occidentalis Gail Newton 1980-7-11 1315 Humboldt Near Red Mtn. 1341 Comment
  UC1197885  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1928-7-7 16028 Humboldt Horse Mountain 1432 Comment
  JEPS98261  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-11 1579 Humboldt W shoulder of south G street, about 75 m S of the City of Arcata Corporation Yard entrance Arcata Comment
  HSC49802  Calystegia soldanella R. York 1979-5-18 295 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC6364  Calystegia soldanella J. W. Johnson 1961-8-17 1021 Humboldt W.M. Lanphere Farm, Samoa Peninsula Comment
  HSC6368  Calystegia soldanella S. J. Hawks 1965-5-14 61 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  HSC16446  Camissonia cheiranthifolia L. H. Myers 1963-5-13 18 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC16448  Camissonia cheiranthifolia R. E. Hafenfeld 1965-5-9 26 Humboldt 1/2 mi. S of Squashan Creek near Gold Bluff Beach Rd. Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  CHSC68787  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Vernon Oswald 1997-6-5 8532 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  SEINET10462971  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt Reece Point near Orleans Comment
  SEINET10873276  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt WOOLEY CREEK Comment
  UC34826  Campanula scouleri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC98089  Campanula scouleri Cara Witte 2007-7-3 414 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1259 Comment
  JEPS11738  Campanula scouleri W. L. Jepson 1902-7-30 2128 Humboldt Three Creeks to Redwood Creek 914 Comment
  JEPS11743  Campanula scouleri Milo S. Baker 1923-7-20 52 Humboldt road from Redwood House to Yager 609 Comment
  SEINET10463440  Campanula scouleri Willis L. Jepson 1902-7-30 Jepson 2128 Humboldt THREE CREEKS TO REDWOOD CREEK 914 Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  HSC48835  Cardamine californica Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 47 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  RSA176497  Cardamine californica var. integrifolia Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  UCR121762  Cardionema ramosissimum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6997 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  JEPS25971  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  UC562279  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow's Prairie 60 Comment
  SEINET10585514  Carex arcta Joseph P. Tracy 1934-7-13 Tracy 13389 Humboldt Dow's Prairie. In sedge swamp with C. exsicata. 61 Comment
  HSC102200  Carex athrostachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1114 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC18076  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC98945  Carex athrostachya Cara Witte 2008-7-25 933 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  POM273208  Carex barbarae Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC19434  Carex bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  CHSC93260  Carex bolanderi Thomas Nelson; Jane Nelson 1977-7-1 3559 Humboldt The Lassics. Along Blanket Creek. 1493 Comment
  HSC75765  Carex bolanderi Teresa Prendusi 1981-7-24 494 Humboldt Near Whiteys Peak 1585 Comment
  HSC98962  Carex bolanderi Cara Witte 2008-7-16 913 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1103111  Carex bolanderi Joseph P. Tracy 1933-6-13 12595 Humboldt Hoopa Mountain, near summit on road west from Hoopa to Bair's 1066 Comment
  HSC45389  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4408 Humboldt Along margin of Lost Lake 1433 Comment
  HSC96498  Carex buxbaumii Gordon Leppig 1999-7-9 1183 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC76385  Carex concinnoides L. P. Janeway 1982-6-20 13 Humboldt NE facing slope near ridgetop 1 mi. SE of Horse Mtn. along FS 6N36 1384 Comment
  CAS-BOT-BC34983  Carex densa S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3443 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  UC562272  Carex echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  SEINET10823148  Carex echinata Pykala 1987-6-11 PYKALA 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole, Abies concolor-forest, open springy mountainmeadow by a little stream, surrounded by Alnus-thickets. 1554 Comment
  UC197209  Carex echinata subsp. phyllomanica Joseph P. Tracy 1913-7-13 4364 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC7163  Carex echinata subsp. phyllomanica Walker 1960-8-16 Humboldt 7 mi., K & K Comment
  CAS-BOT-BC19961  Carex exsiccata Joseph Prince Tracy 1927-7-17 8277 Humboldt North Coast Ranges. Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  UC196567  Carex feta Joseph P. Tracy 1916-6-20 4734 Humboldt at the Dyke Ranch Northern Coast Ranges, Alder Point 304 Comment
  UC1152081  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt 6 mi NE of Hawkins Bar (Fern Spring, Happy Camp Mountain); Trinity Summit Range 1280 Comment
  UC249750  Carex garberi Joseph P. Tracy 1924-7-13 6721 Humboldt Big Lagoon Northern Coast Region 6 Comment
  POM160289  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek, Willow Creek Canyon. 457 Comment
  UC249741  Carex globosa Joseph P. Tracy 1921-4-24 5448 Humboldt Phillipsville Northern Coast Ranges, South Fork of the Eel River 121 Comment
  CAS-BOT-BC22318  Carex harfordii Joseph Prince Tracy 1938-6-15 15934 Humboldt Vicinity of Carlotta. 30 Comment
  CAS-BOT-BC21751  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  HSC102205  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1120 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CHSC40132  Carex laeviculmis L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad R on s side, near Fish Hatchery Rd and across from Blue Lake. 24 Comment
  CAS-BOT-BC31263  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10555 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  UC249733  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  RSA167279  Carex lenticularis var. lipocarpa Joseph P. Tracy 1950-8-7 19266 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  UC562437  Carex luzulina var. ablata Joseph P. Tracy 1932-7-14 10560 Humboldt Corral Prairie Trinity Summit 1584 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
  CHSC85570  Carex mendocinensis L. P. Janeway 2003-7-30 7944 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  UC562725  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt North Coast Ranges. Grouse Mountain. Comment
  HSC102153  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1061 Humboldt Patterson Meadows 1555 Comment
  HSC102156  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1064 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31948  Carex microptera Joseph Prince Tracy 1935-7-14 14087 Humboldt Grouse Mountain, wet meadow. 1524 Comment
  HSC73580  Carex multicaulis Gail Newton 1980-7-14 1480 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC7071  Carex obnupta J. W. Johnson 1961-9-3 1081 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  POM79084  Carex obnupta Le Roy Abrams 1916-7-18 6083 Humboldt Arcata to Trinidad. Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 Comment
  JEPS80020  Carex obnupta Joseph P. Tracy 1912-6-16 3701 Humboldt above edge of salt marsh at Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  HSC82386  Carex pachystachya Thomas W. Nelson 1979-7-11 5012 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC709318  Carex pachystachya Joseph P. Tracy 1938-6-15 15934 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC118599  Carex praticola Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie, on ridge E of Orick, in grassy flat. 548 Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC562247  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-17 10675 Humboldt meadow heading into Devil's Hole; Trinity Summit 1828 Comment
  SEINET10880003  Carex subfusca David Castaner 1989-5-28 Castaner 8067 Humboldt Patrick Point SP area. Redwood forest. Comment
  CAS-BOT-BC115572  Carex tumulicola Joseph Prince Tracy 1930-7-10 8859 Humboldt In grassy opening, Brannan Mountain. 1219 Comment
  UC249757  Carex tumulicola Joseph P. Tracy 1923-5-13 6205 Humboldt near Bridgeville; Northern Coast Ranges 213 Comment
  CHSC43009  Carex viridula subsp. viridula L. P. Janeway 1987-8-30 2534 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  HSC26451  Carpobrotus chilensis T. O. Osborne 1970-5-17 22 Humboldt Sugarloaf Rock, Cape Mendocino. 61 Comment
  HSC2875  Carpobrotus chilensis J. Wendell Howe 1930-5-27 158 Humboldt Pigeon Point Comment
  UC1196741  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  HSC104289  Castilleja affinis subsp. litoralis Samantha E. Andres 2016-6-3 10 Humboldt About 0.5 mi. down the road from Table Bluff to the OHV road at South Jetty 29 Comment
  SBBG52997  Castilleja affinis subsp. litoralis J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC1374929  Castilleja affinis subsp. litoralis Noel H. Holmgren and Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 mi w Ferndale Comment
  RSA273315  Castilleja ambigua subsp. humboldtiensis J. D. Ackerman 1975-6-10 462 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  CAS-BOT-BC255518  Castilleja applegatei var. pinetorum Rose Madrone 1996-5-20 44 Humboldt 42 miles from Hwy. 101 on Hwy. 299, Gray's Falls picnic area 944 Comment
  CHSC69833  Castilleja arachnoidea Thomas Nelson 1979-7-11 5000 Humboldt North Trinity Mountain and ridge to east. 1828 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
  HSC101746  Castilleja attenuata J. P. Smith, J. O. Sawyer 2010-5-2 12810 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  UC1173698  Castilleja attenuata Joseph P. Tracy 1939-4-29 16255 Humboldt Orleans 121 Comment
  UC179945  Castilleja miniata Joseph P. Tracy 1914-9-6 4609 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  HSC18281  Ceanothus foliosus R. H. Neuns 1950-10-17 141 Humboldt Bear Creek Rd. 6 mi N of Shelter Cove 610 Comment
  HSC36676  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 1 .7775 Humboldt Bank of Eubanks Creek 259 Comment
  SBBG4195  Ceanothus foliosus var. foliosus H. and M. Dearing 1932-5-10 987 Humboldt near Blue Lake Comment
  CAS-BOT-BC50047  Ceanothus incanus Doris K. Kildale 1928-5-6 6014 Humboldt Garberville, Eel River Valley - South Fork Comment
  UC198614  Ceanothus incanus Joseph P. Tracy 1916-6-21 4706 Humboldt Burr Creek Northern Coast Ranges 914 Comment
  UC535732  Ceanothus incanus Eleanor Armstrong 1934-8-15 1187 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC63680  Ceanothus integerrimus L. B. Kildale 1928-6-3 5094 Humboldt Bug Creek. Comment
  HSC37606  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 7 .11775 Humboldt Along county rd. 259 Comment
  HSC37608  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 4 .11775 Humboldt Along county rd. 274 Comment
  UCD112339  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt Ridge west of Brushy Mtn. 1 1/2 miles from the ocean. 914 Comment
  CAS-BOT-BC51218  Ceanothus parryi C. Hart Merriam 1920-8-30 s.n. Humboldt Garberville Comment
  HSC18311  Ceanothus parryi C. B. Wolf 1927-8-30 1245 Humboldt Ettersburg Comment
  HSC36678  Ceanothus parryi R. Sutherland 1975-5-5 19 .5575 Humboldt Bank of Mattole River at Ettersburg Bridge 191 Comment
  HSC36681  Ceanothus parryi R. Sutherland 1975-4-22 8 .22475 Humboldt E of China Creek at county rd. 207 Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  JEPS42289  Ceanothus parryi Lincoln Constance 1934-5-24 632 Humboldt bordering lower Look Prairie on E side South Fork Eel River (Bull Creek Region) 121 Comment
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Mar 24 2013
  RSA46888  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill-Mad River Comment
  UC1193283  Ceanothus thyrsiflorus R. H. Neuns 1950-10-23 143 Humboldt on Shelter Cove Road 3 mi e Shelter Cove; Quad. 28D4, e of Shelter Cove 487 Comment
  UCD112727  Ceanothus thyrsiflorus K. Twitchell 1996-5-11 25 Humboldt Crannell, along old Highway 101 at Moonstone beach access. 36 Comment
  SEINET12209982  Ceanothus thyrsiflorus L. K. Henry 1971-1 s.n. Humboldt Along Rt. 36, 2 mi east of Dinsmore in Six Rivers National Forest Comment
  POM203232  Ceanothus velutinus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  UC1052836  Ceanothus velutinus W. L. Colwell 1955-6-7 28 Humboldt three mi w Weott (one half mi n of Grasshopper Mountain lookout); Quad. 29B3, n of Grasshopper Mountain lookout 914 Comment
  CDA35679  Ceanothus velutinus Gordon Leppig 1998-6-1 876 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC56259  Ceanothus velutinus var. velutinus G. L. Clifton, Griswold 1979-8-2 12410 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC277174  Centaurea X moncktonii Earle Mills 1933-10-27 s.n. Humboldt Eureka Comment
  CDA7085  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  JEPS44148  Centaurea cyanus Lincoln Constance 1934-6-25 928 Humboldt on e side of road at Englewood (across the road from Collins' Englewood Campground); Bull Creek Region, South Fork Eel River Comment
  UC1199119  Centaurea solstitialis Joseph P. Tracy 1931-10-18 9735 Humboldt 2 to 5 mi e of South Fork (Camp Grant, along Eel River); Eel River 45 Comment
  HSC37691  Centaurea solstitialis R. Sutherland 1976-8-18 5 .18876 Humboldt In the town of Briceland 192 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
  RSA34292  Centaurium muehlenbergii Doris K. Kildale 1927-7-11 3717 Humboldt Blue Slide on Van Duzen River Comment
  UC562310  Centaurium muehlenbergii Joseph P. Tracy 1931-7-27 9602 Humboldt 6 mi e Carlotta; Van Duzen River 60 Comment
  SDSU7104  Centaurium tenuiflorum D. F. Howe 1963-7-8 3622 Humboldt 8.2 miles west of Bridgeville on Cal 36, Van Duzen River. 91 Comment
  HSC62760  Centranthus ruber J. M. DiTomaso 1979-4-2 853 Humboldt Arcata, Fickle Hill Rd. Comment
  CAS-BOT-BC279138  Centromadia pungens subsp. pungens Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC154177  Centunculus minimus Harley P. Chandler May, 1901 1180 Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UC562466  Centunculus minimus Joseph P. Tracy 1924-8-3 6745 Humboldt Northern Coast Region, Stone Lagoon Stone Lagoon; Northern Coast Region, Stone Lagoon 6 Comment
  UC562468  Centunculus minimus Joseph P. Tracy 1927-7-17 8272 Humboldt North Coast Ranges, on Chaparral Mountain, Three Cabins Three Cabins; North Coast Ranges, Chaparral Mountain, Three Cabins 457 Comment
  UC13533  Cephalanthera austiniae Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC161036  Cerastium arvense Joseph P. Tracy 1909-8-1 3067 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC8230  Cerastium arvense Mrs. M. H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  UC161038  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-6-20 2569 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC668109  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1933-5-28 12412 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC4109  Cerastium fontanum subsp. vulgare D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  HSC4111  Cerastium fontanum subsp. vulgare Richard Steele 1962-5-2 24 Humboldt .25 mi. W of HSC campus 15 Comment
  POM187538  Cercis occidentalis Marcus E. Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  CAS-BOT-BC85658  Chamaecyparis lawsoniana L. R. Abrams 1918-6-15 7107 Humboldt Unspecified 1371 Comment
  MACF027376  Chamaecyparis lawsoniana S. R. Ganley 1972-3-26 1053 Humboldt Along Hwy. 299 365 Comment
  SEINET5334897  Chamaecyparis lawsoniana W. D. Billings 1940-6-25 1350 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  UC1198973  Chamaesyce serpyllifolia Joseph P. Tracy 1920-8-15 5382 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC12553  Chamerion angustifolium subsp. circumvagum D. La Conte 1970-7-7 28 Humboldt Comment
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC98042  Chamomilla suaveolens Cara Witte 2007-7-17 533 Humboldt Intersection of 6N01B and National Forest 1. 1427 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  HSC76323  Cheilanthes gracillima Denis Kearns 1981-7-21 304 Humboldt Near Whiteys Peak 1585 Comment
  CAS-BOT-BC473031  Chenopodium macrospermum var. farinosum Malcom A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  UCD98340  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka. 30 Comment
  CAS-BOT-BC451381  Chimaphila menziesii L. B. Kildale 1930-8-3 10363 Humboldt Chaparel Mt. at Bug Creek 914 Comment
  CAS-BOT-BC451383  Chimaphila menziesii Doris K. Kildale 1925-7-5 1027 Humboldt Willow Creek, Trinity River Valley 152 Comment
  CAS-BOT-BC451387  Chimaphila menziesii T. Worley; M. Mill; F. Rosenthal 1985-5-10 56 Humboldt Horse Mountain Rd., approx. 8 miles S of Hwy. 299 1143 Comment
  HSC17948  Chimaphila menziesii D. E. Anderson 1963-5-18 2449 Humboldt Near junction of New and Trinity Rivers Comment
  HSC99619  Chimaphila umbellata Jimerson, J. Pageau 1979-6-12 537 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC1409178  Chimaphila umbellata Robert F. Thorne and P. Everett 1965-8-5 35145 Humboldt King Mt. 1219 Comment
  UC1197669  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1912-7-4 3726 Humboldt hillside near mouth of Yager Creek (near Hydesville); Northern Coast Region 60 Comment
  CAS-BOT-BC236916  Chloropyron maritimum subsp. palustre A. A. Heller 1924-7-21 13867 Humboldt Salt marsh at Eureka Comment
  RSA167193  Chrysanthemum parthenium Joseph P. Tracy 1946-9-10 17659 Humboldt Chicken yard and garden (Tracy's garden), at Eureka Comment
  HSC31653  Chrysolepis chrysophylla Timothy B. Devine 1974-5-4 319 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC91893  Chrysolepis chrysophylla Susan H. Bicknell 1987-8-29 Humboldt Patrick's Point State Park, near Penn Creek Comment
  UC1193062  Chrysolepis chrysophylla var. chrysophylla R. H. Neuns 1950-7-13 132 Humboldt 3 mi s Alder Point 548 Comment
  UC1196374  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1913-7-13 4357 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  UC419030  Chrysolepis chrysophylla var. chrysophylla H. E. Parks, J. P. Tracy 1930-9-15 765 Humboldt road to Kneeland Bald Hills Comment
  SD42299  Chrysolepis sempervirens Carl B. Wolf 1937-9-13 3089 Humboldt North Coast Range, Summit of Grouse Mountain. 1645 Comment
  UCD130477  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' 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
  CAS-BOT-BC184830  Cinna latifolia Joseph P. Tracy 1935-7-25 14244 Humboldt Trinity Summit. Lower end of Brett Hole. 1584 Comment
  HSC58391  Circaea alpina subsp. pacifica G. L. Clifton 1979-7-31 14100 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1433 Comment
  HSC70502  Circaea alpina subsp. pacifica Gail Newton 1980-7-20 1620 Humboldt Near Bell Swamps 1426 Comment
  RSA20788  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC284409  Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt 1 1/2 miles n. of Orick, Redwood Highway Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  POM289622  Cirsium arvense Lyman Benson 1929-7-12 1789 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA439196  Cirsium arvense M. B. Dunkle 1936-8-22 4859 Humboldt Williams Grove, Eel River 213 Comment
  CDA1113  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2791 Humboldt 5 mi. N/ Richardson Grove. 0 Comment
  UCD130610  Cirsium douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mountain, Titlow Hill Rd. 1219 Comment
  CHSC36389  Cirsium occidentale var. candidissimum Donald M. Burke 1981-8-1 67 Humboldt Along Friday Ridge Rd. 560 Comment
  HSC71801  Cirsium occidentale var. candidissimum M. A. Baker 1980-6-26 2379 Humboldt Near Sims Creek 610 Comment
  CDA19782  Cirsium occidentale var. candidissimum J. Dolf 2001-9-6 PDR 069832 Humboldt Northern California; Vicinity of Honeydew. 0 Comment
  SBBG113460  Cirsium occidentale var. venustum B. Villegas 1998-8-5 Humboldt near Berry Summit on Titlow Hill Rd, 3.9 mi S of US Hwy 299 Comment
  UC204833  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC302187  Cirsium remotifolium Joseph P. Tracy 1926-7-5 7740 Humboldt Iaqua Northern Coast Ranges, Iaqua 609 Comment
  HSC64527  Clarkia amoena J. P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SDSU8657  Clarkia amoena Harvey 1939-7-16 2429 Humboldt US 101 Comment
  UC20318  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  CAS-BOT-BC164182  Clarkia concinna Doris K. Kildale 1925-5-24 873 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  CAS-BOT-BC172077  Clarkia davyi D. E. Breedlove 1962-6-7 3037 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  CAS-BOT-BC172511  Clarkia purpurea subsp. quadrivulnera Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC505118  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC172513  Clarkia purpurea subsp. quadrivulnera Mrs. H. C. Cantelow 1940-7-6 s.n. Humboldt Near Dinsmore's Comment
  UC1196982  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-7-20 4384 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  UC1198505  Clarkia rhomboidea Joseph P. Tracy 1913-6-20 4214 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC20026  Clarkia rhomboidea Harley P. Chandler June, 1901 1339 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC439097  Claytonia cordifolia Joseph P. Tracy 1932-7-15 10583 Humboldt Trinity Summit. Ridges East of Corral Prairie 1828 Comment
  UC275327  Claytonia exigua subsp. glauca Joseph P. Tracy 1923-4-15 6188 Humboldt Redwood Creek;at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  HSC44425  Claytonia lanceolata Brad Klipfel 1975-5-30 648 Humboldt Horse Mtn. Comment
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Sep 23 2019
  HSC17681  Claytonia perfoliata S. R. Johnson 1965-3-28 24 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC17678  Claytonia perfoliata subsp. mexicana J. L. Baker 1965-4-13 47 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  UC673001  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1937-6-27 15380 Humboldt w of mouth of South Fork of Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  HSC78959  Claytonia perfoliata subsp. perfoliata L. P. Janeway, K. Berg 1984-4-11 726 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  UC183595  Claytonia rubra subsp. rubra Joseph P. Tracy 1913-6-16 4141 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC44423  Claytonia saxosa Brad Klipfel 1975-5-30 652 Humboldt Horse Mtn. Comment
  HSC45492  Claytonia sibirica Maralyn O'Meara 1972-6-8 103 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  HSC73102  Claytonia sibirica J. Detzer 1977-4-8 2 Humboldt S end of Patricks Point State Park, 0.2 mi. W of Hwy. 101, 5 mi. N of Trinidad 61 Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  CHSC63433  Clintonia uniflora Vernon H. Oswald 1994-6-29 6364 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Tiltow Hill Rd., 4.6 mi S of Brush Mt. Lookout Rd., S of Hwy. 299 and Willow Creek. 1237 Comment
  CAS-BOT-BC499964  Clintonia uniflora Mrs. H. C. Cantelow 1939-6-5 2446 Humboldt About 1 1/2 miles west of Dinsmores Comment
  UC26602  Collinsia corymbosa Schmidt Humboldt Eureka? Comment
  HSC97486  Collinsia grandiflora C. Witte 2007-5-8 10 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  JEPS14933  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley 762 Comment
  JEPS25056  Collinsia grandiflora Joseph P. Tracy 1922-5-29 6077 Humboldt South Yager Creek Valley 762 Comment
  RSA127485  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mt. Road at Ski Lodge. 1220 Comment
  HSC73765  Collinsia greenei Gail Newton 1980-7-11 1317 Humboldt Near Red Mtn. 1341 Comment
  UC1222824  Collinsia heterophylla Joseph P. Tracy 1950-6-15 18812 Humboldt at Huestis Rock on ne side of Ridge (Mail Ridge Trip) Huestis Rock 822 Comment
  CHSC97959  Collinsia linearis Laurel Goldsmith; Wanda Naylor 2005-6-8 4 Humboldt 1.7 miles south of Hwy 299 on Titlow Hill Rd. UTM 0436141, 4525408. 980 Comment
  HSC48759  Collinsia parviflora Brad Klipfel 1973-6-10 73 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1115823  Collinsia parviflora Joseph P. Tracy 1939-7-9 16332 Humboldt Snow Camp 1402 Comment
  HSC38493  Collinsia rattanii D. E. Anderson, J. P. Smith 1971-6-18 - 1093 Humboldt Horse Mtn. Comment
  UC1196763  Collinsia rattanii Joseph P. Tracy 1908-6 2704 Humboldt opposite Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC48992  Collinsia rattanii M. A. Baker 1979-5-23 757 Humboldt Comment
  UC908726  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  UC908752  Collomia grandiflora Joseph P. Tracy 1933-7-3 12635 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS71016  Collomia grandiflora Lincoln Constance 1934-6-12 863 Humboldt n bank of river <at> Bull Cr. road; South Fork Eel River, Bull Creek Region, Dyerville Comment
  UC1222736  Collomia grandiflora Joseph P. Tracy 1950-7-6 19029 Humboldt 3 mi s Burr Valley; Sprosten's Place 1066 Comment
  BLMAR164  Collomia heterophylla Donald Hazlett 1994-6-7 164 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC45808  Collomia heterophylla J. P. Smith, Steve Selva 1970-6-30 4139 Humboldt Comment
  POM270917  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E. 600 Comment
  RSA21450  Collomia heterophylla C. B. Wolf 1937-8-13 9214 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1197860  Collomia tracyi Joseph P. Tracy 1926-6-20 7634 Humboldt Horse Mountain 1432 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  UC978530  Collomia tracyi Joseph P. Tracy 1939-8-5 16373 Humboldt sand bars along river Van Duzen River, Dinsmore's 737 Comment
  UC978537  Collomia tracyi Milo S. Baker July, 1923 102 Humboldt near Carlotta; Van Duzen River bed Comment
  HSC16580  Corallorhiza maculata D. E. Anderson 1965-6-1 3780 Humboldt Near Brush Mtn. lookout 1189 Comment
  UC1222190  Corallorhiza maculata Joseph P. Tracy 1950-7-2 18972 Humboldt ridge e Grove's Prairie (near Elk Camp, 6 mi ne of Hawkins Bar); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS64350  Corallorhiza mertensiana Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  HSC100583  Corallorhiza multiflora Carl C. Marshall 297 Humboldt Coyote Camp. Comment
  HSC30139  Corallorhiza striata A. Montalvo, J. D. Ackerman 1974-4-14 171 Humboldt 100 m from intersection of Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  HSC35454  Cordylanthus maritimus subsp. palustris J. D. Ackerman 1975-8-2 615 Humboldt Humboldt Bay: across from Murray Field (Eureka airport), near railroad tracks and Hwy 101. Comment
  HSC95574  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-7-19 177 Humboldt Arcata Marsh at end of I St. 0 Comment
  OBI9572  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new road towards Trinity summit Comment
  HSC49140  Corethrogyne filaginifolia J. O. Sawyer, R. J. Cole 1978-10-10 3318 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  POM356151  Corethrogyne filaginifolia var. californica M. B. Dunkle 1926-8-18 4827 Humboldt Moonstone Beach Comment
  HSC104440  Cornus canadensis Cheri Sanville, Bianca Hayashi Jun 2012 Humboldt North of Snow Camp Mountain Comment
  HSC97551  Cornus nuttallii Cara Witte 2007-5-31 159 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  RSA239689  Cornus nuttallii Larry E. DeBuhr 1973-4-23 982 Humboldt Richardson Grove Redwood State Park. Comment
  UC314605  Cornus nuttallii Joseph P. Tracy 1923-4-15 6193 Humboldt Redwood Creek at Berry's; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC102041  Cornus sericea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 944 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC58225  Cornus sericea subsp. sericea Walter Overton 1979-8-1 12368 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1196900  Cornus sericea subsp. sericea Joseph P. Tracy Jul 16 1930-Jul 19 1930 9009 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  CAS-BOT-BC210538  Cornus sessilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC210542  Cornus sessilis Carl B. Wolf 1941-2-28 9971 Humboldt Junction of Willow Creek & its e. fork 457 Comment
  JEPS50174  Cornus sessilis Joseph P. Tracy 1922-4-30 6040 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  RSA46902  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek. 152 Comment
  PASA1934  Cornus sessilis Frank W. Peirson 1932-7-7 Humboldt Wild Creek Comment
  JEPS53365  Coronopus didymus Lincoln Constance 1934-6-18 902 Humboldt border of N. Dyerville Flat, near South Fork Rail Road Station and Post Office, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  UC1175128  Corylus californica P. C. Everett and E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek (Hwy 96 from Orleans to Weitchpec) 121 Comment
  CAS-BOT-BC180311  Corylus cornuta subsp. californica L. B. Kildale 1926-3-26 1647 Humboldt near junction with highway, on old Fortuna road 15 Comment
  CAS-BOT-BC180313  Corylus cornuta subsp. californica L. B. Kildale 1926-9-5 2638 Humboldt Lasseck's Peaks - on trail between Canal Goat Camp and Red Peak 1676 Comment
  HSC31123  Corylus cornuta subsp. californica J. O. Sawyer 1970-6-24 2260 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC76056  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12590 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA152313  Corylus cornuta var. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, along Hookton road. 9 Comment
  CHSC19513  Cotula coronopifolia J. F. Knezevich 1968-5-14 431 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. Comment
  UC1192141  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-3 1163 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  CAS-BOT-BC291342  Cotula coronopifolia Elmer I. Applegate 1923-9-13 4009 Humboldt 5 miles south of Eureka Comment
  UC198581  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC5439  Crepis acuminata J. P. Tracy 1926-6-20 7621 Humboldt Horse Mt. Comment
  CAS-BOT-BC291490  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3396 Humboldt Just south of Trinidad Comment
  RSA95100  Crepis capillaris F. W. Peirson 1923-7-11 3936 Humboldt flats N of Eureka. Comment
  UC538047  Crepis occidentalis E. B. Babcock 1932-6-25 404 Humboldt South Fork Mt.; exposed n slope, Humboldt-Trinity Counties 1828 Comment
  RSA113706  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley 107 Comment
  CAS-BOT-BC290909  Crepis setosa Henry M. Pollard 1948-8-8 s.n. Humboldt Between Orleans and Camp Creek Comment
  RSA43684  Crepis setosa H. M. Pollard 1948-8-8 s.n. Humboldt Roadside between Orleans and Camp Creek Comment
  UC76597  Crocidium multicaule Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC1199228  Crocidium multicaule Joseph P. Tracy 1918-5-1 4911 Humboldt top of Lawrence Creek Hill; Kneeland Prairie, Lawrence Creek Hill 762 Comment
  SEINET10578683  Croton setiger Daniel K. Harder 1994-10-4 Harder 2495 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  HSC100706  Cryptantha Carl C. Marshall Jun 1887 484 Humboldt Near Jewett's field. Comment
  HSC57201  Cryptantha affinis Griswold, Butler 1979-7-10 7107 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  POM174073  Cryptantha flaccida Joseph P. Tracy 1918-7-6 5047 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC73579  Cryptantha torreyana Gail Newton 1980-7-14 1479 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC55165  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 12155 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC906745  Cuscuta californica Joseph P. Tracy 1941-8-28 17047 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC6400  Cuscuta salina J. Wendell Howe 1934-7-18 988 Humboldt Humboldt Bay Comment
  SEINET5785849 Image available Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-8-28 Humboldt Humboldt Bay near Table Bluff Comment
  UC562484  Cuscuta salina var. major Joseph P. Tracy 1933-8-22 12990 Humboldt Mouth of Eel River 3 Comment
  SEINET943383  Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-1 1175 Humboldt In Illinois Biol. Monogr. Vi. 161, fig. 32 a-e, 121, 140 (1921) et in Mem. Torrey Bot. Club, xviii. 168, fig. 42 F (1932). Comment
  CHSC26301  Cynoglossum grande L. Greenhill 1977-4-5 8 Humboldt 15 ft. from highway 36 on n side, 3 miles w of Bridgeville. 182 Comment
  HSC45506  Cynoglossum grande M. Alcasas 1978-4-7 5 Humboldt Freshwater Rd. cut-out 75 yds. S of junction with Barry Rd. 854 Comment
  UC1040573  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 mi nw Petrolia 152 Comment
  CAS-BOT-BC190381  Cynosurus echinatus Kenneth Clark 1980-3-22 523 Humboldt Above Dead Man's Gulch. 137 Comment
  HSC37238  Cynosurus echinatus Lon Hall 1975-6-19 406 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC9519  Cynosurus echinatus R. Spellenberg 1964-6-15 418 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  JEPS64088  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt mt. slopes w. of its mouth S. Fork Trinity R. 304 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
  HSC37996  Cyperus eragrostis Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  POM89790  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  UC1103640  Cyperus squarrosus Joseph P. Tracy 1930-10-19 9230 Humboldt Alton to Fortuna; Eel R. 15 Comment
  UC1196444  Cypripedium fasciculatum unknown 1931-4-1 Humboldt Weitchpec 152 Comment
  UC14955  Cypripedium montanum Harley P. Chandler June, 1901 1399 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  SEINET12152438  Cytisus scoparius J. P. Tracy 1950-1 18830 Humboldt Eureka Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  HSC9552  Danthonia californica J. P. Tracy 1927-7-4 8234 Humboldt Lone-Star Creek, Iagua. 610 Comment
  UC552734  Danthonia californica Joseph P. Tracy 1935-7-23 14137 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC552787  Danthonia californica Joseph P. Tracy 1935-6-23 13965 Humboldt French Camp Ridge 1066 Comment
  SEINET6847453  Danthonia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1103260  Danthonia californica var. americana Joseph P. Tracy 1949-8-11 18475 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  CAS-BOT-BC420364  Darmera peltata Doris K. Kildale 1926-5-2 1900 Humboldt Willow Creek Flat Comment
  UC505103  Datisca glomerata Joseph P. Tracy 1932-9-18 10805 Humboldt Blue Slide on Van Duzen River Blue Slide; Northern Coast Ranges, Van Duzen River, Blue Slide 91 Comment
  HSC91939  Daucus carota E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, entrance to park along Patrick's Point Drive Comment
  RSA296790  Daucus pusillus J. P. Smith, T. Nelson 1977-6-30 s.n. Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  HSC34963  Delphinium decorum subsp. tracyi Thomas W. Nelson 1975-5-24 1861 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC48788  Delphinium decorum subsp. tracyi Brad Klipfel 1975-6-17 316 Humboldt Along Titlow Hill Rd. Comment
  CAS-BOT-BC9030  Delphinium decorum subsp. tracyi Doris K. Kildale 1929-4-28 7464 Humboldt Between Little Van Duzen River and Dinsmores on Eureka-Red Bluff Road Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  HSC56226  Delphinium glaucum G. L. Clifton, Griswold 1979-8-2 12268 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC9180  Delphinium hesperium subsp. pallescens Harley P. Chandler June 1901 1410 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC56090  Delphinium menziesii G. L. Clifton, Griswold 1979-7-31 11783 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  CAS-BOT-BC116467  Delphinium nuttallianum Daniel Howard Norris 1931-5-30 12213 Humboldt ...at crest of ridge on Big Hill Road east of Hoopa Comment
  CAS-BOT-BC121962  Delphinium trolliifolium Doris K. Kildale 1928-5-15 6018 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  CAS-BOT-BC121977  Delphinium trolliifolium Albert Michael Vollmer; L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec Comment
  UC1196336  Delphinium trolliifolium Joseph P. Tracy 1946-6-15 17563 Humboldt foothills of Horse Mountain 1066 Comment
  CDA14362  Deschampsia cespitosa P. Haggard 1996-7-8 s.n. Humboldt North Coast; North Coast Railroad right-of-way, Eureka. 0 Comment
  POM207102  Deschampsia cespitosa Jos Burtt Davy, W. C. Blasdale 6194 Humboldt Lake Mendocino Comment
  CAS-BOT-BC194339  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt Mouth of Elk River, around Humboldt Bay, just south of Eureka 6 Comment
  CAS-BOT-BC194298  Deschampsia cespitosa subsp. cespitosa David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC526857  Deschampsia danthonioides Joseph P. Tracy 1932-7-14 10538 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  RSA183518  Deschampsia elongata D. E. Anderson 1965-9-5 4075 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  UC38021  Deschampsia elongata Harley P. Chandler June, 1901 1331 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley, Hupa Indian Reservation 304 Comment
  UC534987  Deschampsia elongata H. E. Parks May 1931 3646 a Humboldt Big Lagoon Comment
  CHSC7029  Dicentra formosa K. R. Stern 1964-6-17 2115 Humboldt Ca. 9 mi. w of Blue Lake, s side of US Hwy. #299. Comment
  HSC44257  Dicentra formosa J. Walker 1977-4-23 8 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC855123  Dicentra formosa Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  SJSU1033  Dicentra formosa A. C. Browne 1950-5-23 Humboldt Weott Comment
  JEPS506  Dichelostemma capitatum Joseph P. Tracy 1927-5-8 7966 Humboldt Phillipsville 121 Comment
  SEINET12053835  Dichelostemma capitatum J. P. Tracey 1951-1 19404 Humboldt toward Ashfield Butte, Kneeland Prairie Comment
  UC15032  Dichelostemma capitatum J. Burtt Davy 1899-6-11 5430 Humboldt Hubbard's Station to Elk Prairie Comment
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  RSA46864  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie, Bald Hills. Comment
  SD42568  Dichelostemma ida-maia Carl B. Wolf 1937-8-11 9146 Humboldt North Coast Range, 3 miles west of Little Van Duzen River, at summit of grade - Dinsmores to Bridgeville. 762 Comment
  SEINET3885618  Dichelostemma ida-maia D. E. Bright 1962-6-12 285 Humboldt Roadside, along Highway #96, 2 miles northeast of Orleans.; 0 Comment
  UC1198181  Dichelostemma ida-maia Joseph P. Tracy 1947-5-10 17684 Humboldt Miranda South Fork of Eel River 121 Comment
  UC535761  Dichelostemma ida-maia Eleanor Armstrong 1934-5-17 Humboldt n of Redway Comment
  UC1198161  Dichelostemma multiflorum Joseph P. Tracy 1911-7-6 3346 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC45651  Dichelostemma multiflorum Diane L. Reed 1978-5-7 64 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  HSC62775  Digitalis purpurea M. Dean Griswold Jr. 1979-5-30 108 Humboldt By Cypress Hall, HSU campus Comment
  UC198609  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  UC146140  Disporum smithii Joseph P. Tracy 1908-6 2867 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 304 Comment
  UCR179281  Disporum smithii R. G. Swinney 1968-3-28 234 Humboldt East of Humboldt State College, Arcata 152 Comment
  UC1198619  Dodecatheon hendersonii Joseph P. Tracy 1923-3-17 6165 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC1222564  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18645 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  BLMAR622  Dodecatheon hendersonii Jennifer Wheeler 2011-6-1 622 Humboldt Lacks Creek, Pine Ridge Rd, entry to firewood cutting area 975 Comment
  RSA181633  Downingia elegans Doris K. Niles 1940-7-20 2 Humboldt Summit of Friday Ridge road, Grouse Mt. 1829 Comment
  UC673096  Downingia elegans Joseph P. Tracy 1940-7-7 16673 Humboldt Grouse Mt. 1554 Comment
  CAS-BOT-BC41359  Draba verna Doris K. Kildale 1929-4-25 7437 Humboldt Kneeland Prairie. 853 Comment
  UC562604  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit and Salmon Summit 1524 Comment
  CAS-BOT-BC401534  Drosera rotundifolia Carl B. Wolf 1927-8-1 s.n. Humboldt Marsh near Eureka Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  CAS-BOT-BC197062  Echinochloa crus-galli Henry M. Pollard 1945-8-24 s.n. Humboldt Near Harley place Comment
  UC526835  Echinochloa muricata var. microstachya Joseph P. Tracy 1930-10-12 9209 Humboldt Eel River on gravel bars Alton to Fortuna; Northern Coast Region, Eel River 15 Comment
  CAS-BOT-BC113645  Eleocharis acicularis Joseph Prince Tracy 1937-8-12 15626 Humboldt Bald Mountain at Lake Prairie Edge of bog. 1066 Comment
  UC213006  Eleocharis bella Joseph P. Tracy 1919-5-31 5180 Humboldt shores of Lack Pond, near Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC112842  Eleocharis macrostachya Robert F. Thorne; P. Everett 1965-8-9 35338 Humboldt Along Hwy 101 about 3 mi N of Eureka 1 Comment
  UC666874  Eleocharis macrostachya Joseph P. Tracy 1934-7-14 13400 Humboldt near Blue Lake (along Mad River) Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  UC1103669  Eleocharis obtusa Joseph P. Tracy 1931-9-7 9652 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC113134  Eleocharis pachycarpa Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  CAS-BOT-BC112660  Eleocharis parvula Robert F. Thorne; P. Everett 1965-8-9 35342 Humboldt along Hwy 101, ca 3 mi N of Eureka along roadside. 1 Comment
  SEINET11682991  Elymus glaucus K. S. Erdman 1970-1 4785 Humboldt Doleson Hill Prairie, Bald Hills Road SE of Orick Comment
  HSC58601  Elymus glaucus subsp. glaucus G. L. Clifton, Griswold 1979-7-25 10826 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  BLMAR20  Elymus multisetus Brad Barr June, 1982 20 Humboldt King range, West facing slope of spanish ridge Comment
  RSA129486  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  HSC8757  Elymus trachycaulus subsp. trachycaulus R. I. Bonn 1965-10-1 Humboldt 2 miles N of Bridgeville on Kneeland-Bridgeville Rd. 732 Comment
  CDA30232  Epilobium brachycarpum M. K. Beyers, I. Shepardson 2009-9-13 257 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
  SEINET187086  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt Roadside Little Van Duzen River 15 miles east of Bridgeville. Comment
  HSC16551  Epilobium canum subsp. latifolium D. E. Anderson 1963-9-21 2836 Humboldt 0.5 mi. E of Willow Creek Comment
  HSC54585  Epilobium ciliatum Overton, Butler 1979-7-24 9639 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS31529  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  JEPS31530  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  UC1197003  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5388 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC144085  Epilobium densiflorum Joseph P. Tracy 1908-6 2850 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS38204  Epilobium densiflorum Joseph P. Tracy 1917-9-3 4852 Humboldt Jones Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  UC1198492  Epilobium densiflorum Joseph P. Tracy 1938-7-5 16003 1/2 Humboldt wet place in flat by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  HSC55074  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11675 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC39234  Epilobium minutum D. E. Anderson, J. P. Smith 1971-7-6 - 1273 Humboldt Horse Mtn. Comment
  HSC73789  Epilobium minutum Gail Newton 1980-6-28 704 Humboldt Near Mad River Butte. 1536 Comment
  HSC78650  Epilobium minutum D. K. Imper 1982-7-13 1484 Humboldt Near Chaparral Mtn. 1386 Comment
  HSC79541  Epilobium minutum Kenneth Clark 1981-4-5 1300 Humboldt Dead Man's Gulch, Shelter Cove 11 Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC171849  Epilobium septentrionale Doris K. Kildale 1929-8-4 8778 Humboldt Mattole River at Union Mattole Comment
  RSA1439  Epilobium septentrionale E. R. Johnson 1929-08 1437 Humboldt Eel River. 91 Comment
  JEPS60147  Equisetum arvense W. L. Jepson 1932-7-24 16378 Humboldt near Camp Grant (bank of main Eel River); Eel River 91 Comment
  RSA275366  Equisetum hyemale var. affine James Payne Smith, Advanced Plant Taxonomy Class 1971-10-9 4996 Humboldt Mad River above the Fish Hatchery. Comment
  HSC22867  Equisetum laevigatum D. E. Anderson 1965-6-10 3792 Humboldt Along NW Pacific railroad tracks in Eureka, in harbor area and adjacent sites Comment
  SEINET5526477 Image available Equisetum telmateia Unknown 1983-6-1 Humboldt Lord Ellis Summit Comment
  HSC880  Equisetum telmateia subsp. braunii D. B. Bader 1963-3-1 10 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  UC211495  Equisetum telmateia subsp. braunii Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  CDA37518  Equisetum telmateia subsp. braunii G. D. Barbe 1984-6-7 4164 Humboldt Along Highway 299, 17 miles east of Arcata and junction with Highway 101. Comment
  MACF019709  Equisetum telmateia subsp. braunii C. V. Morton 1955-8-23 27237 Humboldt Roadside near Province Creek State Park entrance Comment
  UC526900  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1145099  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1950-9-22 19372 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  CAS-BOT-BC299908  Erechtites minimus A. A. Heller 1923-7-8 13766 Humboldt State redwood camp 10 miles south of Dyerville Comment
  POM224221  Erechtites minimus H. E. Parks 1931-09 01058 Humboldt Trinidad. 76 Comment
  HSC57936  Eremogone congesta var. suffrutescens G. L. Clifton, Griswold 1979-7-31 11590 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC57894  Ericameria greenei Butler, Overton 1979-7-31 11469 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC1223016  Erigeron aliceae Joseph P. Tracy 1950-7-31 19237 Humboldt top of Grouse Mountain 1524 Comment
  CAS-BOT-BC296112  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  JEPS21932  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near summit of ridge) 762 Comment
  RSA167385  Erigeron foliosus var. mendocinus Joseph P. Tracy 1951-7-24 19625 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC196573  Erigeron foliosus var. mendocinus Joseph P. Tracy 1916-9-4 4756 Humboldt head of Canoe Creek; Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 Comment
  BLMAR715  Erigeron glaucus Jennifer Anthony-Wheeler 1995-4-4 715 Humboldt King range, growing on beach dunes S of 1st arch fence exclosure 6 Comment
  HSC59670  Erigeron glaucus George Kirn 1977-9-27 Humboldt 0.5 mi. NW of Samoa 8 Comment
  POM56125  Erigeron glaucus Joseph P. Tracy 1918-7-1 4972 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape. 3 Comment
  RSA636111  Erigeron glaucus R. F. Thorne 1974-7-29 45079 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  SEINET11842961  Erigeron glaucus F. H. Utech 1986-1 86 -408 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  CAS-BOT-BC295174  Erigeron inornatus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC97452  Erigeron klamathensis Cara Witte 2007-6-7 219 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  HSC95874  Erigeron maniopotamicus Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road off Forest Service Road 49N38, 1 mile from junction with Forest Service Road 1. 1482 Comment
Read comments
Jun 21 2014
  UC175167  Erigeron maniopotamicus Joseph P. Tracy 1908-6 2750 Humboldt nw slope Buck Mountain 762 Comment
  HSC38089  Erigeron philadelphicus Thomas W. Nelson, James Nelson 1976-5-30 2610 Humboldt McKeown Ranch N of Dinsmore Comment
  POM357558  Erigeron philadelphicus B. C. Templeton 1964-6-13 10184 Humboldt Along old Hwy. 101 near Trinidad Comment
  SD53196  Erigeron philadelphicus Darley F. Howe 1962-5-21 3297 Humboldt 16 miles north of Garberville on Highway 101. 60 Comment
  JEPS41364  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1912-6-9 3651 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC31516  Erigeron philadelphicus var. philadelphicus Hy Melde 1896-2-21 Humboldt Eureka Comment
  UC249848  Erigeron strigosus var. strigosus Joseph P. Tracy 1923-6-27 6384 Humboldt Trinity River Valley, near Willow Creek Comment
  CAS-BOT-BC224257  Eriodictyon californicum Belle Richardson Jackson 1939-9-1 s.n. Humboldt Between Weaverville & Eureka Comment
  UC1083059  Eriodictyon californicum P. C. Everett and E. K. Balls 1959-10-24 23953 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt Co. Line); Somesbar to Orleans 198 Comment
  UC24051  Eriodictyon californicum Harley P. Chandler June, 1901 1352 Humboldt Hupa Indian Reservation North Coast Ranges, , Hupa Valley (Hupa Valley) Comment
  HSC100896  Eriogonum Carl C. Marshall Jun 1887 492 Humboldt Near Harris. Comment
  CAS-BOT-BC248808  Eriogonum compositum var. compositum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  HSC97398  Eriogonum compositum var. compositum Benjamin Hart, Erin Lonergan 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1524 Comment
  HSC43069  Eriogonum latifolium J. P. Smith 1971-10-6 4982 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  LA206930  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  UC6341  Eriogonum latifolium Harley P. Chandler May, 1901 1205 Humboldt Humboldt Bay 3 Comment
  RSA393624  Eriogonum latifolium E. A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata Comment
  SEINET10479505  Eriogonum latifolium Mary Susan Taylor 1982-10-24 Taylor 5180 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC203954  Eriogonum latifolium Joseph P. Tracy 1918-7-1 4974 Humboldt 3 mi s Point of the Cape; Cape Mendocino 3 Comment
  RSA53819  Eriogonum luteolum H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  HSC55189  Eriogonum nudum G. L. Clifton, Griswold 1979-8-2 12253 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1198143  Eriogonum nudum var. auriculatum Joseph P. Tracy 1938-6-17 15961 Humboldt s point of Cape Mendocino; Cape Mendocino 3 Comment
  HSC98667  Eriogonum nudum var. nudum Cara Witte 2007-6-19 296 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1254 Comment
  HSC35618  Eriogonum nudum var. nudum Thomas W. Nelson, B. Reinhardt 1975-7-30 2114 Humboldt E of Pilot Rock Comment
  RSA46699  Eriogonum nudum var. nudum Doris K. Kildale 1927-6-25 3582 Humboldt Ettersburg Comment
  UC162628  Eriogonum nudum var. nudum Joseph P. Tracy 1911-7-4 3294 Humboldt along Willow Creek, near its mouth N. Coast Ranges, Willow Creek (Tributary of Trinity River) 243 Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  UC1198146  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1948-8-8 18095 Humboldt near school house; Iaqua 609 Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  UC672893  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-28 14329 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1828 Comment
  HSC98923  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-3 404 Humboldt Along National Forest 1 on Kinsey Ridge. 1299 Comment
  UC1980558  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8347 Humboldt Along U. S. Forest Service Road 1 near White Rock Springs at milepost 7.6, about 7.8 southwest of Salyer. Comment
  UC412902  Eriogonum umbellatum var. nelsoniorum P. E. Goddard 1906-6 657 Humboldt Lasseck Pk. Comment
  HSC43085  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-1 146 Humboldt N Trinity Mtn. 1860 Comment
  HSC55182  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-2 12202 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC198878  Eriophorum crinigerum H. N. Bolander, Kellogg, M. D. and Co. Humboldt Red Mt. Comment
  HSC100431  Eriophyllum caespitosum Carl C. Marshall Sep 1887 439 Humboldt S side of Table Bluff. Comment
  HSC5610  Eriophyllum lanatum H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  CDA18219  Eriophyllum lanatum var. achilleoides G. D. Barbe, T. C. Fuller 1974-6-17 1847 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  JEPS34743  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-26 678 Humboldt s end of Dyerville Bridge (South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  UC165840  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1900-9-10 956 Humboldt near Hydesville (gravel bar of the Van Duzen River); Van Duzen River 60 Comment
  CAS-BOT-BC301181  Eriophyllum lanatum var. arachnoideum Doris K. Kildale 1927-6-25 3541 Humboldt Shelter Cove Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  HSC70700  Eriophyllum lanatum var. arachnoideum Gail Newton 1980-7-15 1552 Humboldt Near Sims Mtn. 1311 Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  HSC8467  Erodium botrys T. W. Beck 1963-4-27 40 Humboldt Camp Bauer, Korbel Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC17090  Erodium cicutarium Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell Springs Comment
  HSC97471  Erodium cicutarium C. Witte 2007-5-10 20 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  UC17110  Erodium moschatum J. P. Tracy 1899-4-16 150 Humboldt Eureka Comment
  HSC102063  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 965 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1199177  Erysimum capitatum Joseph P. Tracy 1927-6-12 8149 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  HSC45085  Erysimum capitatum var. capitatum R. Sutherland 1978-4-23 16 .23478 Humboldt Kinsey (Fraser) Ridge near head 732 Comment
  HSC67181  Erysimum capitatum var. capitatum Thomas W. Nelson, James Nelson 1980-6-10 5433 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC57645  Erysimum perenne G. L. Clifton, Terry Griswold 1979-7-25 10812 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SD92948  Erythranthe grandis W. Bertsch 1953-7-30 228 Humboldt Highway 100 near Arcata Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  HSC36498  Erythronium californicum Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1893 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC38519  Erythronium californicum D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  UCD139632  Erythronium californicum Roman Gankin; W. R. Hildreth 1966-3-15 699 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  UC1005669  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt top Horse Mountain 1219 Comment
  UC1197640  Erythronium californicum J. P. Tracy 1908-6-7 2611 Humboldt in woods Butler Valley 152 Comment
  HSC35276  Erythronium grandiflorum subsp. grandiflorum J. D. Ackerman 1975-6-18 474 Humboldt SW slope of trinity Mtn., Grogan Hole, 6.4 mi. E of junction of Rd. 10N02 and 8N01, 20.4 mi. E of Hoopa and Hwy. 96 1677 Comment
  HSC100888  Erythronium hartwegii Carl C. Marshall Jul 1886 334 Humboldt Trinity summit E of Hoopa. Comment
  HSC34508  Erythronium oregonum subsp. leucandrum J. D. Ackerman 1975-5-3 437 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
Read comments
Mar 11 2013
  HSC15504  Erythronium revolutum W. D. Stevens 1963-4-15 14 Humboldt 1.5 mi. W of Berry Summit on Hwy 299 Comment
  CDA42403  Escallonia rubra R. Robison 2014-5-5 s.n. Humboldt Near Trinidad State Beach, east of park. 0 Comment
  HSC58822  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-8-2 12244 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS20466  Euchiton gymnocephalus Joseph P. Tracy 1923-4-1 6175 Humboldt near Blue Lake 304 Comment
  JEPS20486  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bold Hilla Road); Bold Hills Road 152 Comment
  POM208999  Euonymus occidentalis Lincoln Constance 1934-6-11 855 Humboldt Cabin Creek bridge on Dyerville-Bull Creek Flat road. Humboldt Redwood Park. 52 Comment
  JEPS51869  Euphorbia crenulata Harley P. Chandler Jun 1901 1457 Humboldt Bluff Creek; North Coast Ranges, Klamath River 304 Comment
  HSC7986  Euphorbia helioscopia M. C. Hartman 1963-3-22 7 Humboldt Near farmhouse on side road, 1/4 mi. W of Alliance Rd. Comment
  RSA602487  Euphorbia helioscopia D. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  HSC7991  Euphorbia peplus Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  HSC83991  Euphorbia peplus L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 223 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  UC1199301  Eurybia radulina Joseph P. Tracy 1930-9-14 9188 Humboldt Kneeland Prairie 762 Comment
  UC1222977  Eurybia radulina Joseph P. Tracy 1950-8-20 19319 Humboldt 2 mi sw of Orleans Comment
  UC165017  Eurybia radulina Joseph P. Tracy 1909-9-12 3082 Humboldt region about Humboldt Bay, Humboldt Hill Humboldt Bay, Humboldt Hill 152 Comment
  CDA30697  Euthamia occidentalis M. K. Beyers, I. Shepardson 2009-9-13 249 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
  HSC96650  Euthamia occidentalis Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-4 9282 Humboldt Trinity River Bar down stream from the mouth of Willow Creek 152 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
  HSC100109  Festuca arundinacea T. L. Ackerman 1964-5-15 48 Humboldt Dunes west from Fairhaven sign Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  HSC39227  Festuca californica D. E. Anderson, J. P. Smith 1971-7-6 1285 Humboldt Horse Mtn. Comment
  HSC99867  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2892 Humboldt Along ridge N of Bear Creek 1463 Comment
  POM206178  Festuca idahoensis H. P. Chandler 1901-06 1381 Humboldt Hupa Indian Reservation. 305 Comment
  RSA121314  Festuca idahoensis H. S. Yates 1936-6-17 5697 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC570335  Festuca idahoensis H. S. Yates 1936-6-17 5697 Humboldt lower nw slope Buck Mountain; South Fork Pk. 792 Comment
  HSC45025  Festuca occidentalis R. Sutherland 1978-4-24 7 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  POM214838  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UC1145211  Festuca occidentalis Joseph P. Tracy 1936-7-28 15019 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC70910  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5472 Humboldt near Elk Prairie Comment
  HSC9947  Festuca occidentalis D. W. C 1956-4-30 Humboldt Matole River Area Comment
  CAS-BOT-BC278969  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  HSC95257  Festuca rubra Andrea Pickart 2002-7-3 152 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  CAS-BOT-BC278621  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt Trinity Summit. Open places at McKay Prairie 1584 Comment
  HSC81922  Festuca subulata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4964 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UCD66438  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt Trinity Summit, Head of Little Hors-Linto Creek. 1371 Comment
  CHSC19723  Fragaria chiloensis Gary J. Stebbins 1970-2-22 11 Humboldt Patricks Point State Park. On ocean bluff. Comment
  CHSC23878  Fragaria chiloensis A. R. Morrison 1974-4-27 Humboldt Throughout understory along immediate coastal cliffs ca. 2 mi. n of Trinidad. Comment
  RSA114996  Fragaria chiloensis E. K. Balls, Lee W. Lenz 1955-5-15 20737 Humboldt 12.6miles SW of Ferndale along Old Coast road to Capetown 259 Comment
  SD39960  Fragaria chiloensis Edith A. Purer 1932-7-27 4159 Humboldt Samoa, sand dunes Comment
  RSA46479  Fragaria chiloensis Doris K. Kildale 1927-3-24 2947 Humboldt Fleener Creek Comment
  HSC79429  Fragaria vesca Kenneth Clark 1980-3-23 532 Humboldt South fork of Dead Man's Gulch 76 Comment
  HSC89552  Fragaria vesca M. Roantree 1985-4-25 12 Humboldt E side of Trinidad Head Comment
  BLMAR152  Frangula californica subsp. californica Donald Hazlett 1994-6-7 152 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC59953  Frangula purshiana M. S. Jussel 1931-5-2 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC60000  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  HSC102028  Frasera speciosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 930 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  RSA171981  Fraxinus latifolia Robert F. Thorne 1957-9-2 18992 Humboldt Burlington State Park, just S of Weott. Comment
  RSA46909  Fraxinus latifolia Doris K. Kildale 1926-6-27 2229 Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road 640 Comment
  UC562731  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC34506  Fritillaria affinis J. D. Ackerman 1975-5-3 440 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
  HSC67178  Galium ambiguum Thomas W. Nelson, James Nelson 1980-6-10 5429 Humboldt Along E side of Red Mtn. 1372 Comment
  JEPS6480  Galium ambiguum subsp. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC19793  Galium aparine Joel W. Reinhard 1966-4-30 29 Humboldt N of College Cove Comment
  HSC41285  Galium bolanderi Brad Klipfel 1974-7-23 477 Humboldt Horse Mtn. Comment
  HSC71791  Galium bolanderi Gail Newton 1980-6-16 179 Humboldt Near Monks Camp. 1097 Comment
  UC602509  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  JEPS6692  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  HSC45640  Galium muricatum Diane L. Reed 1978-5-7 57 Humboldt Fourmile Creek, 4 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  JEPS52823  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3852 Humboldt 1/2 mi e Dinsmores (on Hwy 36) 731 Comment
  UC1225915  Galium muricatum Joseph P. Tracy 1942-7-1 17359 Humboldt opposite Buck Mountain (along river); Van Duzen River, Dinsmore's 762 Comment
  UC35332  Galium muricatum C. C. Marshall 1888-1 Humboldt Comment
  JEPS6571  Galium parisiense Rimo Bacigalupi with G. T. Robbins 1954-6-28 4654 Humboldt 7.4 mi n Hoopa (along hwy, high above Trinity River, 4.6 mi n of Weitchpec); Six Rivers National Forest Comment
  HSC71598  Galium porrigens M. A. Baker 1980-6-26 2410 Humboldt Near Sims Creek 610 Comment
  RSA46487  Galium porrigens Doris K. Kildale 1926-3-26 1645 Humboldt Old Fortuna Rd Comment
  HSC34701  Galium porrigens var. porrigens Thomas W. Nelson 1974-8-24 1702 Humboldt Weitchpec, under highway bridge over Klamath River Comment
  UC1143113  Galium triflorum H. L. Person 1931-7-30 27 Humboldt Fieldbrook Eureka Quadrangle Comment
  CAS-BOT-BC303392  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta 60 Comment
  HSC104445  Gamochaeta ustulata Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 9 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC33744  Garrya elliptica J. M. Sauser 1975-5-24 73 Humboldt Samoa dunes off Samoa Blvd. from boat landing Comment
  JEPS66718  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC314603  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region 6 Comment
  UC1225768  Garrya fremontii Joseph P. Tracy 1939-1-14 1618 a Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS71220  Gastridium ventricosum W. L. Jepson 1936-8-7 17855 Humboldt Upper Butte Creek Bear Buttes; , Bear Buttes Comment
  UC1046521  Gaultheria ovatifolia Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3413 Humboldt meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain Snow Camp; Bald Mountain, Snow Camp 1432 Comment
  UC1222634  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp 1402 Comment
  CHSC83107  Gaultheria shallon A. T. Leiser 1980-7-8 Humboldt Redwood National Park, Burm Creek. Comment
  HSC23125  Gaultheria shallon G. M. Nordstrom 1966-4-24 17 Humboldt Kneeland-Maple Creek Rd., near jct. with Korbel rd. Comment
  RSA46828  Gaultheria shallon Doris K. Kildale 1926-1-3 1465 Humboldt Big Lagoon road near Trinidad. Comment
  UCD117449  Gaultheria shallon Linda M. Barker 1976-5-13 1482 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC39619  Gayophytum diffusum subsp. parviflorum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2722 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC74175  Gayophytum diffusum subsp. parviflorum M. A. Baker 1980-7-23 3157 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98954  Gayophytum diffusum subsp. parviflorum Cara Witte 2008-7-28 947 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  POM223144  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC35398  Gayophytum diffusum subsp. parviflorum Chesnut and Drew Humboldt Comment
  POM214929  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  HSC36597  Gentiana affinis Linda M. Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1307 Humboldt Megwill Point on Elk Head, N of Trinidad in Trinidad State Beach 15 Comment
  UC1541480  Gentiana sceptrum H. E. and S. T. Parks 1930-9-14 774 Humboldt Big Lagoon Comment
  RSA46721  Gentiana sceptrum Doris K. Kildale 1937-8-26 15344 Humboldt Christmas Prairie Comment
  HSC37851  Geranium carolinianum Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  JEPS61428  Geranium dissectum Lincoln Constance 1934-6-7 833 Humboldt Johnson Prairie South Fork Eel River, Bull Creek Region Comment
  HSC8650  Geranium dissectum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  RSA600894  Geranium molle Louis C. Wheeler 1959-8-2 7622 Humboldt Shelter Cove. Comment
  UC275490  Geranium oreganum Joseph P. Tracy 1925-5-17 6976 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198954  Geranium solanderi Joseph P. Tracy 1931-5-23 9453 Humboldt vicinity of Trinidad (Trinidad Station); Northern Coast Region, Trinidad Station 60 Comment
  HSC99453  Geum macrophyllum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 104 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC226146  Gilia capitata subsp. pacifica J. P. Tracy; H. E. Parks 1930-5-25 0793 Humboldt Near Bridgeville Comment
  RSA63402  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  UC1197923  Gilia capitata subsp. pacifica Joseph P. Tracy 1925-5-24 7010 Humboldt Kneeland Prairie 762 Comment
  UC133634  Gilia capitata subsp. pacifica Joseph P. Tracy 1905-6-11 2188 Humboldt near Bucksport (region about Humboldt Bay); Region about Humboldt Bay, Northern Coast Region 0 Comment
  UC907968  Gilia capitata subsp. pacifica Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC59713  Gilia millefoliata Clark L. Miller 1979-5-9 4114 Humboldt Samoa Dunes off Samoa Blvd. Comment
  JEPS86009  Gilia tricolor subsp. tricolor Joseph P. Tracy 1938-5-1 15733 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC218431  Glehnia littoralis subsp. leiocarpa L. R. Abrams 1916-7-18 6140 Humboldt At Trinidad Comment
  CAS-BOT-BC218433  Glehnia littoralis subsp. leiocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula of Humboldt Bay Comment
  JEPS158  Glehnia littoralis subsp. leiocarpa unknown 1925-7-29 109 Humboldt Samoa Comment
  HSC10000  Glyceria borealis D. J. Wilder 1965-4-28 21 Humboldt 1/2 mi. W of Arcata on Samoa Rd. Comment
  HSC102148  Glyceria elata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1055 Humboldt Patterson Meadows 1555 Comment
  HSC58542  Glyceria elata Overton, Butler 1979-7-23 9545 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC99484  Glyceria elata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 143 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
  UC53405  Glyceria elata Joseph Burtt Davy 1899-7-26 5881 Humboldt above Martin's Ferry (swamp at Sam Lone's<sp?>) Comment
  HSC93744  Glyceria fluitans Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 791 Humboldt Arcata, Alder Grove Pond 18 Comment
  UC526907  Glyceria fluitans Joseph P. Tracy 1933-7-20 12801 Humboldt Arcata Bottom; North Coast Ranges 15 Comment
  BLMAR713  Glyceria striata Clara Sander 2005-7-13 713 Humboldt Jacoby creek, growing along trail 36 Comment
  SEINET10591165  Glyceria striata Harley P. Chandler Chandler 1526 Humboldt Klamath River. 427 Comment
  HSC99567  Gnaphalium palustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 232 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
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  HSC35784  Gnaphalium palustre Thomas W. Nelson, B. Reinhardt 1975-7-30 2100 Humboldt Road out Whiting Ridge Comment
  RSA168835  Gnaphalium sphaericum Joseph P. Tracy 1942-7-26 17299 Humboldt On the Redwood House road at old mill site, 1 mile N of Redwood House. Valley of South Yager Creek. 457 Comment
  HSC29719  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 mi. N of Manila Comment
  UCD132548  Grindelia camporum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1179 Humboldt Around Fields Landing. Comment
  CAS-BOT-BC304731  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  CAS-BOT-BC304733  Grindelia hirsutula Carl B. Wolf 1927-8-22 783 Humboldt Big Lagoon Comment
  CAS-BOT-BC304737  Grindelia hirsutula Lester Rowntree 1937-8-15 s.n. Humboldt Big Lagoon Comment
  JEPS41893  Grindelia hirsutula W. L. Jepson 1936-8-18 17944 Humboldt Capetown Capetown (grassy flats by the sea) Comment
  RSA168829  Grindelia stricta var. stricta Joseph P. Tracy 1947-11-9 17944 Humboldt South side, at 'Camp Weeott;' Mouth of Eel River. 3 Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  RSA259547  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 s.n. Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC99536  Hackelia californica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 201 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1738 Comment
  HSC48108  Hackelia micrantha Brad Klipfel 1973-7-15 203 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  HSC59038  Hedera helix Thomas Wood 1979-4-20 119 Humboldt Along frontage rd., parallel and E of Hwy. 101 at Patrick Cr. Rd. intersection, adjacent to Patrick Cr. 6 Comment
  UC630634  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt on Van Duzen R. Blue Slide 91 Comment
  RSA12428  Helenium bigelovii C. B. Wolf 1934-7-2 5866 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UCD132967  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  RSA255766  Hemitomes congestum Gary D. Wallace, S. Carlquist 1972-6-30 1102 Humboldt Prairie Crrek Redwoods Stl. Pk. near the coast. 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
  UC175088  Hemizonia congesta subsp. clevelandii T. S. Brandegee 1898-7-1 Humboldt Mad River Comment
  UC205206  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1919-7-20 5183 Humboldt w side near top Mount Pierce; Northern Coast Ranges, Mount Pierce 914 Comment
  HSC13056  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 369 Humboldt HSC Campus, Arcata Comment
  HSC40850  Heterocodon rariflorum Thomas W. Nelson 1976-7-9 3000 Humboldt Along W side of ridge S of E peak of Mount Lassic group. 1524 Comment
  POM208987  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt E slope of Grasshopper Peak, Bull Creek watershed, Humboldt Redwood Park. 762 Comment
  UC1198757  Heteromeles arbutifolia Joseph T. Gregory 1935-12-21 Humboldt 4 mi n Willow Creek (Trinity River bluffs, at the Meitz Place); Trinity River 121 Comment
  UC198602  Heteromeles arbutifolia Miss Landergen Dec 1916 Humboldt Fort Seward; Northern Coast Ranges 91 Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  HSC102136  Heuchera merriamii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1040 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  UC902003  Heuchera micrantha Joseph P. Tracy 1947-4-27 17673 Humboldt roadside near top of Wolverton Gulch (1/2 mi w of tow) 152 Comment
  HSC57336  Hieracium albiflorum Overton, Butler 1979-7-26 10003 Humboldt Near Willow Creek 1341 Comment
  UC582413  Hieracium albiflorum Joseph P. Tracy 1930-7-16 8915 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC582415  Hieracium albiflorum Joseph P. Tracy 1932-7-12 10433 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1199466  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8633 Humboldt French Camp Ridge 1066 Comment
  HSC100488  Hierochloe macrophylla Carl C. Marshall 353 Humboldt S side of Table Bluff. Comment
  JEPS72935  Hierochloe occidentalis Lincoln Constance 1934-5-31 749 Humboldt along n side Bull Cr. (from w boundary of Park to Grasshopper Pk.(Squaw Cr.) rd,); South Fork Eel River, Bull Cr. flat Comment
  UC275351  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  UCD115146  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna. 15 Comment
  CAS-BOT-BC280738  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  JEPS71225  Holcus lanatus William S. Cooper 1925-7-29 121 Humboldt Samoa Comment
  SD51261  Holcus lanatus D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101 Comment
  SEINET181174 Image available Holcus lanatus Bassett Maguire, R Maguire; CB Maguire 1934-6-9 15059 Humboldt Clam Beach; 15 miles north of Eureka. Comment
  SEINET197047 Image available Holcus lanatus H. E. Parks, ST Parks 24260 Humboldt Spruce Cove Trinidad. 61 Comment
  SEINET200832 Image available Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt Immediate vicinity of Eureka 0 Comment
  UC180229  Holcus lanatus Joseph P. Tracy 1913-6-22 4271 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC41306  Holodiscus discolor Brad Klipfel 1974-7-23 469 Humboldt Horse Mtn., on the NE side of the ridge. Comment
  HSC56316  Holodiscus discolor Overton, Butler 1979-8-2 12655 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC64190  Holodiscus discolor J. O. Sawyer, M. A. Ericksen 1979-6-23 3378 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC72686  Holodiscus discolor J. P. Smith 1977-7-3 9260 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC79463  Holodiscus discolor Kenneth Clark 1980-6-14 663 Humboldt Along access trail to Dead Man's Gulch. 107 Comment
  SEINET200585  Hordeum brachyantherum Joseph Tracy, Mary Barkworth; 1998 1942-9-20 17326 Humboldt Field's Landing. Moist flats along edges of foothills 2 miles south of town. 6 Comment
  UCD85279  Hordeum brachyantherum A. A. Beetle; J. P. Tracy, G. L. Stebbins 1942-6-2 3463 Humboldt 1 mile E of Alton. Comment
  CAS-BOT-BC281263  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Northern Coast Region. Trinidad 9 Comment
  UC1103485  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1950-6-17 18832 Humboldt edge of salt marsh at Eureka Slough (Eureka); , Eureka Slough 3 Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  SEINET200739  Horkelia californica subsp. californica J. P. Tracy 1906-6-24 2503 Humboldt Region about Humboldt Bay S slope of Humboldt Hill 0 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
  CAS-BOT-BC206076  Hosackia crassifolia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  HSC99466  Hosackia oblongifolia var. oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 120 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1762196  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  HSC100496  Hydrophyllum occidentale Carl C. Marshall Jun 1885 7 Humboldt Lower Mad River. Comment
  HSC97448  Hydrophyllum occidentale C. Witte 2007-5-22 84 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  SBBG28785  Hydrophyllum occidentale L. Constance, A. A. Beetle, J. P. Tracy 1940-5-17 2618 Humboldt lower slopes of Buck Mtn near Eureka 792 Comment
  HSC99430  Hydrophyllum tenuipes K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 79 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET12347577  Hydrophyllum tenuipes F. H. Utech 1988-5-23 88 -267 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36 50 Comment
  UC1198410  Hypericum anagalloides Joseph P. Tracy 1913-6-1 4076 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  JEPS79906  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek; Trinity R. Valley, Lack Pond 152 Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  CAS-BOT-BC401229  Hypericum perforatum Doris K. Kildale 1928-6-24 7061 Humboldt Redwood Creek at Berry's Comment
  HSC67970  Hypericum perforatum J. P. Smith, Steve Selva 1970-6-14 3831 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  HSC45647  Hypochaeris glabra Diane L. Reed 1978-4-22 19 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC166089  Hypochaeris glabra Joseph P. Tracy 1911-5-27 3193 Humboldt Comment
  UC1069673  Hypochaeris radicata H. L. Person 1932-7-16 L.H. 25 Humboldt Highway n Trinidad; Rock Point Quad. Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  HSC35755  Iliamna latibracteata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1999 Humboldt Bald Hills Rd., just W of French Camp. Comment
  POM205521  Iliamna latibracteata F. W. Peirson 1923-7-11 s.n. Humboldt Between Eureka and Crescent City Comment
  RSA20726  Iliamna latibracteata Carl B. Wolf 1937-9-11 9322 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  HSC102642  Ipomopsis aggregata subsp. aggregata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 964 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  UC52242  Iris douglasiana J. P. Tracy 1903-8-9 1939 Humboldt immediate vicinity Eureka 0 Comment
  UCR138875  Iris douglasiana J. Marshall, J. Savage, L. Allison 1997-3-15 3 Humboldt Hwy 36, 0.5 mi west of Bridgeville 183 Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  UCD138708  Iris douglasiana L. W. Lenz; E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Hwy 299. 365 Comment
  UC1196391  Iris macrosiphon Joseph P. Tracy 1930-5-25 8709 Humboldt Larrabee Valley 731 Comment
  RSA290855  Iris missouriensis Lyman Benson 1928-7-11 383 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  JEPS17230  Iris purdyi Joseph P. Tracy 1938-3-27 15700 Humboldt Miranda South Fork Eel River (slopes along South Fork Eel River) 121 Comment
  RSA275383  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9925 Humboldt Ishi Pishi Road, 2.5 miles from its junction with Route 36 in Orleans. 213 Comment
  HSC70346  Iris tenuissima M. A. Baker 1980-6-7 1816 Humboldt Near Brush Mtn. 287 Comment
  UC14930  Iris tenuissima Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  SEINET200597 Image available Isoetes J. P. Tracy 1935-5-25 13842 Humboldt Fort Seward 107 Comment
  UC667943  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold springs Grouse Mt. 1432 Comment
  CAS-BOT-BC340155  Jaumea carnosa Doris K. Kildale 1929-6-6 8484 Humboldt Stone Lagoon Comment
  CDA8060  Jaumea carnosa T. C. Fuller 1961-9-27 7044 Humboldt West of Highway 101, 1 mile north of Indianola Road, 5 miles north of Eureka. 0 Comment
  HSC95092  Jaumea carnosa Andrea Pickart 2002-6-27 120 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  UC1220310  Jaumea carnosa D. E. Anderson 1963-9-15 2812 Humboldt salt marsh bordering Humboldt Bay Comment
  UC184199  Juncus ambiguus Joseph P. Tracy 1912-6-16 3699 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region, , Hookton 0 Comment
  CHSC105448  Juncus balticus subsp. ater Peter F. Zika 2008-11-3 24274 Humboldt North Coast. Mouth of Elk River NE of Route 101 bridge, 2 air km S of Eureka. 2 Comment
  HSC13983  Juncus balticus subsp. ater S. R. Johnson 1965-5-2 52 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CHSC105149  Juncus bolanderi Peter F. Zika 2008-10-19 24230 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach (North Coast NCo) 110 Comment
  UC184004 Image available Juncus breweri Joseph P. Tracy 1901-8-7 1272 Humboldt ocean beach at Humboldt Bay Northern Coast Region, Humboldt Bay; Humboldt Bay 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
  UC183684  Juncus covillei var. obtusatus Joseph P. Tracy 1904-7-17 2122 Humboldt Hydesville Northern Coast Ranges 60 Comment
  HSC70986  Juncus exiguus Gail Newton 1980-7-20 1652 Humboldt Near Bell Swamps 1426 Comment
  UC1103054  Juncus hesperius Joseph P. Tracy 1901-7-29 1229 Humboldt Eureka Northern Coast Region 0 Comment
  UC183961  Juncus patens Joseph P. Tracy 1912-7-26 3848 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197590  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1927-8-22 8348 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC235889  Keckiella corymbosa Joseph P. Tracy 1933-9-9 13074 Humboldt Along S. Fork of Eel River. Vicinity of Garberville 121 Comment
  HSC50858  Keckiella corymbosa Walter Overton, Marvin Butler 1979-7-25 9882 Humboldt Near Sims Mtn., close to the town of Willow Creek 1296 Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  NY790273  Keckiella corymbosa W. C. McCalla 1935-7-29 4253 Humboldt Open valley of Eel River Comment
  POM208967  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Eel River, above its junction with S Fork, 0.5 mile from South Fork R.R. Sta. 46 Comment
  HSC55592  Kelloggia galioides G. L. Clifton, Griswold 1979-7-26 9366 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC61761  Kickxia elatine Ruby Van Deventer 1963-7-14 Humboldt Along the Klamath River at Pecwan Comment
  JEPS24829  Kickxia spuria H. G. Baker, A. Nelson, J. Surenson, A. Weston 1960-12-29 Humboldt near Nelson Grove; Humboldt Redwoods State Park Comment
  HSC95250  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Humboldt Marsh and Wildlife Refuge, SE corner of Klopp Lake Dike 1 Comment
  UC1103697  Koeleria macrantha Joseph P. Tracy 1917-6-17 4819 Humboldt near Eureka (Bluff at Ocean View Cemetary); Northern Coast RAnges 0 Comment
  UC27904  Kopsiopsis strobilacea Harley P. Chandler June 1901 1468 A Humboldt North Coast Ranges, Klamath River. 304 Comment
  UC552313  Lactuca biennis Joseph P. Tracy 1934-8-14 13583 Humboldt near Myers; North Coast Ranges 60 Comment
  UC1223225  Lagophylla ramosissima Joseph P. Tracy 1950-8-4 19259 Humboldt ne lookout ((at head of Canoe Creek)); Bull Creek State Park, Grasshopper Peak Comment
  UCSB45118  Lamium amplexicaule Council, Michael 1978-3-11 Humboldt Southwest corner of Cathedral Oaks and Los Caneros 10 Comment
  HSC58231  Lapsana communis Walter Overton 1979-8-1 12379 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  JEPS17255  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC1199082  Lathyrus jepsonii var. californicus Joseph P. Tracy 1936-6-17 14964 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  HSC44618  Lathyrus littoralis Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  RSA246791  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35310 Humboldt Big Lagoon 3 Comment
  SD39835  Lathyrus littoralis Charlotte M. Hook 1931-7-15 2104 Humboldt Eureka Comment
  UCR122373  Lathyrus littoralis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7014 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC14746  Lathyrus littoralis J. W. Johnson 1962-4-18 1259 Humboldt Between the mouth the Mad River and the Hunt Farm, Samoa Peninsula. Comment
  UC15342  Lathyrus nevadensis var. nevadensis State Survey 1800-1 Humboldt Comment
  POM277780  Lathyrus polyphyllus Lyman Benson 1930-7-18 2189 Humboldt Arcata 457 Comment
  UC709436  Lathyrus polyphyllus Joseph P. Tracy 1936-8-8 15128 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  SEINET956147  Lathyrus polyphyllus Joseph P. Tracy 1948-1 18118 Humboldt In fir forest, 1.5 miles north of Forest Service Public Camp on Trinity Summit Road. 1280 Comment
  BLMAR670  Lathyrus torreyi Jennifer Wheeler 2013-6-3 670 Humboldt Lacks Creek, West side near broom at end of road 701 Comment
  UC1222398  Lathyrus vestitus Joseph P. Tracy 1949-7-4 18327 Humboldt 2 mi e Kneeland (on the Butter Valley Road) 609 Comment
  UC931759  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19092 Humboldt 4 mi w Willow Creek town (near Willow Creek National Forest Camp) Comment
  UC169300  Lathyrus vestitus var. vestitus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3610 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC33755  Layia carnosa A. Montalvo 1975-5-24 272 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC274330  Leersia oryzoides Henry M. Pollard 1947-8-7 s.n. Humboldt Klamath River's edge nr. woods on placer mine, Orleans region Comment
  UCD133973  Leontodon saxatilis Linda M. Barker 1976-6-1 1562 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC709460  Lepidium strictum Joseph P. Tracy 1941-5-4 16866 Humboldt Scotia 30 Comment
  CAS-BOT-BC13039  Lepidium virginicum var. menziesii Volney Rattan 1878-1-1 s.n. Humboldt Hoopa Valley. Comment
  SEINET7967470 Image available Leptosiphon bicolor Gail Newton 1980-6-28 746 Humboldt Near Mad River Butte 369 Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CAS-BOT-BC334616  Leucanthemum vulgare Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC71379  Leucanthemum vulgare J. P. Smith 1971-10-6 4942 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET11448001 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UC166082  Leucanthemum vulgare Joseph P. Tracy 1909-5-30 2978 Humboldt immediate vicinity of Eureka 0 Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  UCD134130  Leucanthemum vulgare H. E. Parks; S. T. Parks 1943-8-1 24257 Humboldt Spruce Cove, Trinidad. 60 Comment
  HSC89757  Leucanthemum vulgare M. Roantree 1985-5-15 49 Humboldt E side of Trinidad Head. Comment
  CAS-BOT-BC444064  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  HSC48392  Lewisia leeana Brad Klipfel 1973-6-10 152 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET200641 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka. Comment
  JEPS14227  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  UC642246  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  UC642252  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  HSC49055  Ligusticum californicum Patricia Shesgreen 1978-8-2 123 Humboldt Arcata Community Forest, 100 yds N of field house, 25 ft from pond Comment
  JEPS17499  Lilaeopsis occidentalis W. L. Jepson 1921-8-7 9333 Humboldt Stone Lagoon Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC63175  Lilium bolanderi M. A. Baker 1979-7-10 1021 Humboldt Comment
  SEINET8480647  Lilium columbianum W. Roderick 1967-7-22 s.n. Humboldt Hwy 101, Near Del Norte Co. line. 305 Comment
  CAS-BOT-BC130686  Lilium occidentale Doris K. Kildale 1925-6-30 1337 Humboldt On road to Humboldt Country Club 7 mi from Eureka Comment
  HSC57704  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-7-25 10947 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC57654  Lilium washingtonianum subsp. washingtonianum G. L. Clifton, Griswold 1979-7-25 10825 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC1801  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond, N Humboldt Bay. Comment
  HSC90804  Limonium californicum Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC1198575  Linanthus bicolor Joseph P. Tracy 1933-7-3 12636 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS58421  Linanthus filipes W. L. Jepson 1902-7-11 2016 Humboldt Martin's Ranch South Fork of Trinity River Comment
  SFV18546  Linaria canadensis E. Cohen 2002-4-15 23 Humboldt Eureka. Comment
  JEPS11331  Linaria vulgaris Joseph P. Tracy 1921-7-23 5858 Humboldt Dows Prairie, thence to Trinidad Dows Prairie Dows Prairie; Northern Coast Ranges, Dows Prairie 60 Comment
  HSC98065  Linnaea borealis Cara Witte 2007-7-12 523 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  UC179969  Linnaea borealis var. longiflora Joseph P. Tracy 1914-7-5 4571 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  SEINET10634291  Linum Daniel K. Harder 1994-10-4 Harder 2493 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  SD42239  Linum lewisii Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  SEINET8981428  Lithocarpus densiflorus W. D. Billings 1940-6-25 s.n. Humboldt Cedar Creek, 35 miles east of Arcata Comment
  UC1225788  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon; along Trinity Highway 457 Comment
  UC1222386  Lithophragma affine Joseph P. Tracy 1951-5-6 19400 Humboldt 5 mi e Carlotta (by old Strong's District School House); e of Carlotta 60 Comment
  UC1100297  Lolium multiflorum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1177 Humboldt Salt Marshes around Fields Landing; Salt marshes around Fields Landing Comment
  HSC10311  Lolium perenne C. B. Wolf 1927-8-29 1215 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  JEPS16097  Lomatium californicum Joseph P. Tracy July, 1908 2905 Humboldt ridge between Van Duzen & Mad Rivers near Low Gap; Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  UC1197164  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1942-6-23 17229 Humboldt 1 mi. w. Box Camp (on summit of ridge on Hoopa trail, Trinity Summit); Trinity Summit 1219 Comment
  RSA167442  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1951-6-24 19537 Humboldt Near Ashfield Butte Comment
  RSA21589  Lomatium dasycarpum subsp. dasycarpum C. B. Wolf 1937-8-13 9234 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  SEINET3822052 Image available Lomatium dissectum Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2617 Humboldt Buck Mountian, near Eureka 792 Comment
  HSC73749  Lomatium macrocarpum M. A. Baker 1980-7-15 2946 Humboldt Near Whiting Ridge. 1341 Comment
  HSC35753  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1997 Humboldt French Camp, Bald Hills. Comment
  UC1222606  Lomatium nudicaule Joseph P. Tracy 1951-6-26 5056 Humboldt Board Camp Mountain, N side; at extreme head of Redwood Creek 1541 Comment
  UC1714579  Lomatium utriculatum J. P. Tracy 1904-5 2116 Humboldt immediate vicinity Eureka (restricted to small patch on bluff at Bucksport); Bucksport 0 Comment
  BLMAR649  Lomatium vaginatum Jennifer Wheeler 2012-5-9 649 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  HSC27656  Lonicera conjugialis G. L. Clifton, Terry Griswold 1979-7-25 10829 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC81687  Lonicera conjugialis Thomas W. Nelson 1979-7-11 5001 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC240470  Lonicera hispidula Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC3955  Lonicera hispidula var. vacillans J. Allen DeCou 1899-6-4 Humboldt Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  RSA171943  Lonicera hispidula var. vacillans R. F. Thorne 1957-9-2 19002 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1239554  Lonicera hispidula var. vacillans Joseph P. Tracy 1911-7-9 3469 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC168948  Lonicera hispidula var. vacillans Joseph P. Tracy 1904-7-31 2132 Humboldt Eureka Northern Coast Region 0 Comment
  RSA246894  Lonicera involucrata R. F. Thorne, P. C. Everett 1965-8-9 35301 Humboldt Big Lagoon. 3 Comment
  SEINET5222458  Lonicera involucrata Unknown 2002-8-22 85 Humboldt McKinleyville, along Fischer Road just N of the Mad River Comment
  CAS-BOT-BC241492  Lonicera involucrata var. ledebourii L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay Comment
  HSC31630  Lonicera involucrata var. ledebourii Glenn McGourty 1974-8-27 16 Humboldt About 1 mi. from Capetown bridge. Comment
  UC162797  Lotus aboriginus Joseph P. Tracy 1909-8-1 3073 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC493999  Lotus aboriginus H. E. Parks and J. P. Tracy 1930-9-15 762 Humboldt Kneeland Bald Hills Comment
  HSC26447  Lotus corniculatus Brad Klipfel 1973-4-28 16 Humboldt Along Canyon Creek, SW of Korbel Comment
  HSC99573  Lotus crassifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 238 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
  UC1197309  Lotus crassifolius var. crassifolius Joseph P. Tracy 1911-7-7 3416 Humboldt between Willow Creek and Campbell Creek (vis ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  HSC45023  Lotus humistratus R. Sutherland 1978-4-23 19 .23478 Humboldt Road near head of Kinsey Ridge 732 Comment
  UC168986  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-4 3731 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1223420  Lotus purshianus var. purshianus Joseph P. Tracy 1933-8-30 13021 Humboldt Titlow Mountain Grouse Mountain 1524 Comment
  UC176274  Lotus purshianus var. purshianus Joseph P. Tracy 1913-7-20 4386 Humboldt Redwood Creek, at crossing of Willow Creek road Northern Coast Ranges 304 Comment
  HSC71596  Lotus unifoliolatus var. unifoliolatus M. A. Baker 1980-6-26 2407 Humboldt Near Sims Creek 610 Comment
  SEINET12154367  Lupinus andersonii J. P. Tracy 1949-1 18433 Humboldt Trinity Summit. on rd from Hoopa to Box Camp nr rd to "Big Hill" turns off Comment
  UC1129355  Lupinus arboreus H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quadrangle Comment
  SEINET10452624  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  UC1197280  Lupinus bicolor Joseph P. Tracy 1908-6-9 2668 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  SEINET6932626 Image available Lupinus bicolor Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  JEPS95261  Lupinus elmeri A. Thoele and S. Carothers 1995-7-14 1000 Humboldt near Trinity Co. line; along Six Rivers Nat. Forest Rte.1(=South Fork Mountain Rd.), 0.6 mi S of int. with road 3N06; ca. 1 mi SE of Blake Mountain campground; ca. 30 airmiles ESE of Eureka 1719 Comment
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Sep 7 2010
  HSC75464  Lupinus latifolius J. O. Sawyer 1980-7-18 3613 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC14833  Lupinus latifolius R. Spellenberg 1964-6-15 415 Humboldt 7 mi. E of Redwood Creek, Hwy. 299. Comment
  HSC35605  Lupinus latifolius subsp. viridifolius Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2016 Humboldt French Camp, Bald Hills. Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole Comment
  UC1223290  Lupinus latifolius var. latifolius Joseph P. Tracy 1933-8-30 13032 Humboldt Grouse Mountain near Clear Lake Grouse Mountain; , near Clear Lake 1524 Comment
  RSA32650  Lupinus luteolus Doris K. Kildale 1926-7-11 2347 Humboldt Bear River at Capetown. Comment
  UC1197272  Lupinus nanus Joseph P. Tracy 1914-5-14 4450 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  JEPS65425  Lupinus polyphyllus Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  HSC79442  Lupinus rivularis Kenneth Clark 1980-3-27 556 Humboldt On access trail to Dead Man's Gulch, Shelter Cove. 91 Comment
  UC198578  Lupinus rivularis Joseph P. Tracy 1917-5-26 4785 Humboldt at Eureka (on bluff at Bucksport); Northern Coast Ranges 0 Comment
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  RSA414240  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-4 3583 Humboldt Along west side of road north from Alder Springs. 1524 Comment
  RSA104397  Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt Corral Prairie, Trinity Summit Comment
  UCR40070  Lupinus tracyi Robert Runyon 1979-6-27 s.n. Humboldt Six Rivers National Forest, Along a ridge near (NE of) Trinity Summit Station, Trinity Co. line 1829 Comment
  CAS-BOT-BC436574  Luzula cascadensis Doris Kildale 1931-5-10 10690 Humboldt Snow Camp Comment
  UC1152123  Luzula comosa Joseph P. Tracy 1930-7-16 8903 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  HSC70988  Luzula parviflora Gail Newton 1980-7-20 1649 Humboldt Near Bell Swamps. 1426 Comment
  UC1152126  Luzula parviflora Harold E. Parks and Joseph P. Tracy 1947-7-5 17811 Humboldt vicinity Box Camp (w side Trinity Summit); , vicinity Box Camp 1463 Comment
  CHSC7077  Lysichiton americanus K. Cox 1969-4-2 7 Humboldt Patrick's Point St. Pk. ca. 100 ft. S. campsite #43. Comment
  HSC93250  Lysichiton americanus Gordon Leppig 1998-3-9 712 Humboldt Arcata, Alder Grove Pond, E side 12 Comment
  JEPS46466  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt Fields Ld'g Comment
  JEPS40326  Madia elegans Joseph P. Tracy 1921-8-21 5937 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1093114  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 mi n of Garberville; Hayfield, Dean Creek Lodge Comment
  CAS-BOT-BC343019  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC343024  Madia gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill 30 Comment
  CAS-BOT-BC343030  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi. S.E. of Petrolia; halfway between upper Mattole and Honeydew, Mattole River 121 Comment
  CAS-BOT-BC94819  Madia gracilis R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 834 Humboldt Humboldt Redwoods S.P., Look Prairie, 0.5 air mi. N of Mattole Rd., and 3 air mi. W of Hwy. 101 243 Comment
  HSC71164  Madia gracilis Thomas W. Nelson 1977-5-30 3410 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC717988  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi se of Petrolia; Mattole River, between Upper Mattole and Honeydew Comment
  HSC79470  Madia gracilis Kenneth Clark 1980-5-10 634 Humboldt Along access trail to Dead Man's Gulch 122 Comment
  JEPS40411  Madia gracilis W. L. Jepson 1902-7-1 1967 Humboldt at Berry's Ranch; Redwood Creek Comment
  CDA39348  Maianthemum dilatatum Gordon Leppig 1998-5-11 760 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  UCSB15906  Maianthemum dilatatum Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  HSC49030  Maianthemum racemosum subsp. amplexicaule Patricia Shesgreen 1978-5-5 62 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC74330  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 145 Humboldt Near Monks Camp. 1097 Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  UC1052474  Malus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove; Trinidad Comment
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Jun 17 2020
  UC484032  Malus fusca C. B. Wolf 1930-10-26 Humboldt s edge Big Lagoon (near the Redwood Highway) 3 Comment
  HSC26848  Malva nicaeensis Thomas W. Nelson 1971-1-8 324 Humboldt N of the county fairgrounds at Ferndale Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  OBI35884  Marah oregana David J. Keil 1983-7-1 17293 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC1199283  Matricaria discoidea Joseph P. Tracy 1933-5-20 12217 Humboldt Capetown 30 Comment
  UC162807  Medicago arabica J. P. Tracy 1907-5-10 2560 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA91365  Medicago arabica Joseph A. Ewan 1937-7-2 10458 Humboldt Trinidad to Trinidad Head. Comment
  HSC79458  Medicago minima Kenneth Clark 1980-4-18 586 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  HSC39838  Medicago polymorpha Peter Sorensen 1976-6-15 Humboldt Woodley Island Comment
  UC1145137  Melica californica Joseph P. Tracy 1938-6-9 15886 Humboldt 2 mi nw Harris (Mail Ridge) 914 Comment
  UCD87232  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC101165  Melica harfordii Dana York, Kim Hayler 2012-5-18 3105 Humboldt Six Rivers National Forest, near Somes Bar, 585 meters SE of the confluence of the Klamath and Salmon Rivers, E and above Hwy. 96. 213 Comment
  HSC98673  Melica harfordii Cara Witte 2008-7-10 848 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  UC34139  Melica spectabilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5827 Humboldt Trinity Summit Comment
  UC38867  Melica subulata Harley P. Chandler May 1901 1174 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UCD88639  Melica subulata A. H. Murphy 1950-1 s.n. Humboldt E. M. Cottrell Ranch. Comment
  UCSC000054  Melica subulata August L. Hormay 1932-5-11 s.n. Humboldt Korbel Comment
  POM47605  Melissa officinalis Unspecified 1923-7-29 91 Humboldt Rohnerville. Damp flat. 15 Comment
  UC175494  Mentha canadensis Joseph P. Tracy 1912-10-20 4007 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  JEPS86110  Menziesia ferruginea Wayne Roderick 1965-6-5 Humboldt 0.5 mi s of Del Norte-Humboldt County line 152 Comment
  HSC102515  Micranthes nidifica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1501 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  RSA293124  Micropus californicus Thomas W. Nelson, Jane P. Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC468880  Microseris bigelovii J. P. Tracy 1900-6-5 839 Humboldt immediate vicinity Eureka 0 Comment
  UC204748  Microseris bigelovii Joseph P. Tracy 1918-7-3 4993 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC92136  Microseris laciniata subsp. leptosepala Harley P. Chandler June 1901 1408 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  HSC17187  Microsteris gracilis Elrid H. Spinas 1948-5-15 26 Humboldt Along rd. to Gouse Mtn. Lookout, 1 mi. from Hwy. 299 Comment
  UCSB10373  Mimulus aurantiacus var. aurantiacus Parks, H.; Parks, S. 1951-6-1 Humboldt Along bay shore near landing, Trinidad Comment
  HSC99424  Mimulus breweri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 73 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
  UC1299218  Mimulus cardinalis Freed W. Hoffman 1949-7-15 3011 Humboldt a little s Blue Ridge (bottom of Mule Slide); North Coast Ranges, Mt. Lassic area Comment
  HSC72408  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  UCSB15934  Mimulus dentatus Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  UC175795  Mimulus guttatus Joseph P. Tracy 1912-7-26 3825 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA60480  Mimulus guttatus John H. Thomas 1949-6-12 896 Humboldt Along road between Orick and Martin's Ferry. 15.5 miles west of Martin's Ferry. 762 Comment
  UC1222801  Mimulus inodorus Joseph P. Tracy 1950-8-8 19283 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC582599  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  JEPS10468  Mimulus microphyllus Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  UC162709  Mimulus microphyllus Joseph P. Tracy 1911-7-7 3367 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC55628  Mimulus moschatus Overton, Butler 1979-7-24 9626 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC74503  Mimulus moschatus Gail Newton 1980-8-10 2052 Humboldt Near Blake Mtn. 1707 Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  UC1196783  Mimulus pulsiferae Joseph P. Tracy 1937-6-27 15383 Humboldt w mouth of S. Fork of Trinity River; Friday Ridge 1219 Comment
  UC1196786  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC44532  Mimulus tilingii Brad Klipfel 1973-7-1 141 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA183506  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt About 5 miles N of Hoopa on Bald Hills Road. Comment
  CAS-BOT-BC388622  Minuartia douglasii Doris K. Kildale 1926-4-30 1919 Humboldt Fruitland - Hill Harris road Comment
  HSC104427  Minuartia douglasii Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  HSC4056  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. Comment
  HSC45054  Minuartia douglasii R. Sutherland 1978-4-23 31 .23478 Humboldt 640 Comment
  SEINET11943609  Minuartia douglasii H. P. Chandler 1901-1 1454 Humboldt Klamath River 305 Comment
  UC1198335  Minuartia douglasii Joseph P. Tracy 1933-6-13 12559 Humboldt Bairs Ranch Redwood Creek 609 Comment
  UC1223239  Minuartia douglasii Joseph P. Tracy 1950-7-6 18993 Humboldt 2 mi s Burr Valley (on the Albee Rd, Bridgeville to Blocksburg) 1158 Comment
  HSC36641  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC58019  Minuartia pusilla G. L. Clifton 1979-7-31 11821 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC20242  Mitella caulescens D. E. Anderson 1967-6-7 4350 Humboldt Along Puter Creek, tributary to Mad River, about 3 mi. S of Blue Lake Comment
  CAS-BOT-BC48148  Mitella caulescens Volney Rattan 1903-1-1 36 Humboldt Long Prairie Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  HSC16010  Modiola caroliniana W. D. Stevens 1967-7-16 46 Humboldt Along dirt road from old Hwy. 101 to top of N bank of Mad River Comment
  UC8145  Moehringia macrophylla Mrs. Mary H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  HSC76519  Monardella odoratissima D. K. Imper 1981-8-12 903 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  JEPS109950  Monardella odoratissima subsp. odoratissima Dean W. Taylor 2007-7-12 20164 Humboldt Pig Toe, along the Fruit Ranch road. 762 Comment
  CAS-BOT-BC220255  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1219 Comment
  UC416723  Monardella villosa subsp. villosa P. E. Goddard 1901-7 3 Humboldt Hupa Valley Comment
  SEINET4173666 Image available Monardella villosa var. glabella Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC535774  Monotropa hypopitys Eleanor Armstrong 1934-8-1 1171 Humboldt Richardson Grove Comment
  UC198876  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  HSC96218  Montia linearis J. McIntire, S. Lyon 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on FS Rd. NF1 1280 Comment
  HSC77395  Montia parvifolia L. P. Janeway 1983-5-21 301 Humboldt At East Fork USFS campground, W edge of flat canyon bottom 473 Comment
  HSC10393  Muhlenbergia filiformis J. P. Tracy 1930-7-16 8920 Humboldt Near McKay Camp. 1677 Comment
  UC1145149  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UCD86796  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1149 Humboldt Richardson Grove. Comment
  UCD86806  Muhlenbergia mexicana Joseph P. Tracy 1922-9-3 6111 Humboldt Klamath River at Bluff Creek. 91 Comment
  HSC78084  Myosurus minimus L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 718 Humboldt N Spit of Humboldt Bay on BLM land 3 Comment
  HSC77911  Myriophyllum spicatum Randy Nyman 1978-10-22 Humboldt Fish Lake 549 Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UCD87900  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  SEINET201033  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville. 122 Comment
  UC526764  Nassella pulchra Joseph P. Tracy 1926-5-2 7436 Humboldt grassy hillside near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC98519  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-7 235 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1375 Comment
  UC1222721  Navarretia intertexta Joseph P. Tracy 1950-6-23 18860 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  UC60881  Navarretia intertexta Harley P. Chandler Jun 1901 1392 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. 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
  UC203962  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC1239741  Nemophila menziesii Joseph P. Tracy 1938-5-1 15729 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC35549  Nemophila menziesii var. atomaria Mary H. Manning Humboldt Hupa Comment
  CAS-BOT-BC219410  Nemophila parviflora Alice Eastwood; John Thomas Howell 1937-6-24 4864 Humboldt Road to Horse Mt. Comment
  UC73584  Nicotiana quadrivalvis var. quadrivalvis J. Burtt Davy and Blasdale Jun 20 1899-Jan 1 1900 5709 Humboldt Hoopa Valley; North Coast Ranges Comment
  CDA20507  Noccaea fendleri subsp. californica P. Haggard 2004-8-3 PDR 1285924 Humboldt Northwestern California; Along Friday Ridge Rd in Blue Lake. 0 Comment
  HSC41308  Notholithocarpus densiflorus Brad Klipfel 1974-7-23 471 Humboldt Horse Mountain Comment
  UCR4969  Notholithocarpus densiflorus Frank C. Vasek 1966-7-13 660713- 03 Humboldt North Coast Range, 3 mi. west of Garberville 450 Comment
  UC275320  Nuphar lutea subsp. polysepala Joseph P. Tracy 1923-6-27 6385 Humboldt Trinity River Valley near the South Fork, Lack Pond Lack Pond; Northern Coast Ranges, Trinity River Valley, Lack Pond 182 Comment
  HSC59715  Nuttallanthus texanus Clark L. Miller 1979-5-9 1110 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  CDA38489  Oenanthe sarmentosa Margaret Bellue 1932-9-28 s.n. Humboldt Near Arcata. 0 Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  HSC16486  Oenothera glazioviana Jerry Parker 1968-10-1 78 Humboldt 0.5 mi. N of Dows Prairie School Comment
  RSA0004550  Oenothera hookeri subsp. wolfii Carl B. Wolf, E. R. Johnson 1934-12-11 6172 Humboldt Redwood Highway just south of Trinidad. 30 Comment
  HSC16488  Oenothera wolfii D. E. Anderson 1962-7-5 2246 Humboldt Luffenholtz Comment
  UC1197457  Orobanche fasciculata Joseph P. Tracy 1921-5-30 5492 Humboldt Northern Coast Ranges. Kneeland Prairie. Comment
  BLMAR171  Orobanche uniflora Donald Hazlett 1994-6-7 171 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC100092  Orthilia secunda Jimerson, J. Pageau 1979-6-12 538 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  HSC75448  Osmorhiza occidentalis J. O. Sawyer 1980-7-18 3582 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS154  Osmorhiza occidentalis W. L. Jepson Jul 16 1902-Jul 23 1902 2045 Humboldt Trinity Summit 2133 Comment
  HSC98819  Osmorhiza occidentalis Cara Witte 2008-7-1 790 Humboldt Forest Service Road 4N32. .5 miles east of intersection with 5N04 and 4N32E. 1508 Comment
  UC1222753  Osmorhiza occidentalis Joseph P. Tracy 1950-6-25 18887 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  UC902196  Oxalis albicans subsp. pilosa Joseph P. Tracy 1942-5-16 17336 Humboldt Garberville 152 Comment
  HSC12761  Oxalis articulata subsp. rubra M. J. Athey 1970-11-8 12 Humboldt Along Arcata blvd., in Arcata. Comment
  HSC16722  Oxalis articulata subsp. rubra N. D. Dennis 1965-4-4 6 Humboldt Corner of F and 9th street, in Eureka Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  JEPS43140  Oxalis oregana W. L. Jepson 1932-7-26 16414 Humboldt Bull Creek Comment
  SBBG21910  Oxalis oregana D. Myrick 1964-7-26 980 Humboldt Hwy 101 near Garberville 152 Comment
  UC1130248  Oxalis oregana H. L. Person 1932-8-1 Humboldt Korbel Eureka quad Comment
  HSC79477  Oxalis oregana Kenneth Clark 1980-3-23 531 Humboldt Alluvial terrace of S fork Dead Man's Gulch. 53 Comment
  SD103955  Oxalis oregana J. L. S. Simpson 1969-6-4 Humboldt In redwood forest along Highway 36. Comment
  UCD111002  Oxalis pilosa R. N. Raynor 1935-1 s.n. Humboldt Humboldt County. Comment
  HSC70179  Packera bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-4 4415 Humboldt Along county road ca. 3 mi. SE of Kneeland Airport 762 Comment
  CAS-BOT-BC318149  Packera bolanderi var. bolanderi Albert Kellogg; W. G. W. Harford 1868-9 537 Humboldt unspecified Comment
  HSC10485  Panicum acuminatum var. fasciculatum D. E. Anderson 1963-9-29 2852 Humboldt Fish Lake. Comment
  SEINET10859947  Panicum bulbosum Joseph P. Tracy 1912-10-20 Tracy 4009 Humboldt Alton. Dried-up slough-bed. Comment
  UC1145035  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1950-8-20 19324 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  HSC26886  Papaver somniferum Keith Chamberlin 1973-7-24 Humboldt 10th and F St., Arcata Comment
  CHSC79889  Parapholis incurva Gordon Leppig; Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad, Trinidad Harbor, UTM zone 10, 4546N, 404E. 3 Comment
  HSC93730  Parapholis incurva Gordon Leppig, Sylvia Leppig 1998-5-25 788 Humboldt Big Lagoon State Park. 1 Comment
  JEPS4478  Parentucellia viscosa Joseph P. Tracy 1923-6-18 6284 Humboldt 1 mi s of point Cape Mendocino; Northern Coast Ranges 152 Comment
  JEPS4481  Parentucellia viscosa Joseph P. Tracy 1911-7-12 3530 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  POM288009  Pastinaca sativa Lyman Benson 1928-7-12 811 Humboldt Weott Ranger Station. 61 Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  HSC102174  Pedicularis racemosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1086 Humboldt Patterson Meadows 1566 Comment
  JEPS7210  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC40011  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt E side of Red Lassic, beside FS Rd. 1S07 1677 Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  JEPS27375  Penstemon anguineus H. W. Grinnell 1932-7-19 33 Humboldt McKay Camp South Fork Mt. 1676 Comment
  RSA21441  Penstemon anguineus Carl B. Wolf 1937-8-12 9205 Humboldt North Coast Range, South Fork Mt., Trinity Co line. 1585 Comment
  UC673098  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (on river bar) 152 Comment
  UC41715  Penstemon laetus var. sagittatus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UC168971  Penstemon laetus var. sagittatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5666 Humboldt between Redwood Creek and Hoopa Valley (summit of Hoopa Mt.); North Coast Ranges, summit of Hoopa Mt. Comment
  UCR39809  Penstemon newberryi D. K. Imper 1984-6-6 s.n. Humboldt Slate Creek Butte 1372 Comment
  UC1198051  Penstemon newberryi var. berryi Joseph P. Tracy 1941-8-28 17046 Humboldt South Fork Mountain, along summit near Blake lookout Northern Coast Ranges 1706 Comment
  UC41737  Penstemon newberryi var. berryi Chestnut and Drew 1888-7-21 Humboldt S. Fork Mountain Comment
  HSC39394  Penstemon purpusii D. E. Anderson, J. P. Smith 1971-7-6 - 1279 Humboldt Horse Mtn. Comment
  HSC21104  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  HSC35616  Perideridia oregana Thomas W. Nelson, B. Reinhardt 1975-7-30 2113 Humboldt E of Pilot Rock Comment
  HSC56110  Perideridia parishii subsp. latifolia G. L. Clifton 1979-7-31 11864 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC6055  Petasites frigidus var. palmatus R. D. Modafferi 1965-4-8 35 Humboldt 1.3 mi. N of Trinidad on Trinity Street 305 Comment
  SEINET12118794  Peucedanum tomentosum H. P. Chandler 1901-1 1445 Humboldt Klamath River, North Coast Ranges 274 Comment
  JEPS1443  Phacelia bolanderi W. L. Jepson 1902-6 1910 Humboldt Hubbard's Station to Camp Grant (cliffs of river); Eel River 60 Comment
  RSA30626  Phacelia heterophylla subsp. virgata Lincoln Constance, R. C. Rollins 1942-5-11 2876 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  UC562573  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1926-6-20 7661 Humboldt lower slopes Horse Mt. 914 Comment
  HSC57166  Phacelia mutabilis Overton, Butler 1979-7-26 9971 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC57416  Phacelia procera G. L. Clifton, Griswold 1979-7-26 10178 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UCD88167  Phalaris aquatica J. W. Logan 1926-6-2 s.n. Humboldt Ferndale. Rusk Ranch. Plot near house. Comment
  SEINET200963 Image available Phalaris californica J. P. Tracy 1934-6-21 13241 Humboldt Along hwy across Salmon Creek flats, around Humboldt Bay; N Coast Ranges. 6 Comment
  HSC47795  Phalaris minor Michael A. Watkins 1978-6-10 12 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC100586  Philadelphus gordonianus Carl C. Marshall Jul 1885 91 Humboldt Mountains near streams. Comment
  CAS-BOT-BC76558  Philadelphus lewisii Carl D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canyon near Hoopa Comment
  UC11465  Philadelphus lewisii J. Burtt Davy June 1899 5547 Humboldt along banks of river near Scotia; North Coast Ranges, Eel River Comment
  SEINET200857  Philadelphus lewisii subsp. gordonianus Joseph P. Tracy 1937-6-20 15355 Humboldt Bear River, ten miles upstream from the mouth. 152 Comment
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Oct 8 2018
  UC34058  Phleum alpinum J. P. Tracy 1901-5-30 1106 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  UC905634  Phlox adsurgens David D. Keck 1948-7-2 6003 Humboldt 0.25 mi w boundary of Six Rivers National Forest (8.6 mi w of Willow Creek, e of Berry's summit, e side of Rocky Ridge); Rocky Ridge 762 Comment
  HSC41243  Phlox diffusa Brad Klipfel 1974-5-27 385 Humboldt Horse Mtn. Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC908449  Phlox gracilis Joseph P. Tracy 1935-7-23 14146 Humboldt Corral Summit Trinity Summit 1584 Comment
  HSC36216  Phoradendron serotinum subsp. tomentosum John Rehling 1975-11-8 109 Humboldt Near Berry Summit, just off Hwy. 299 Comment
  HSC41478  Phyla nodiflora Ed Cope, R. Runyon 1977-7-20 132 Humboldt 15th and H St., Arcata. Comment
  SEINET3290581 Image available Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Trinidad, Spruce Cove Comment
  SJSU2517  Physocarpus capitatus H. L. Buckalew 1962-6-21 Humboldt Smith R at Smith Cr Redwood State Park Comment
  HSC72978  Picea breweriana M. A. Baker 1980-7-23 3188 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC73447  Picea sitchensis Doris K. Kildale 1926-3-20 1544 Humboldt Big Lagoon Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA175261  Picea sitchensis Robert F. Thorne 1957-9-3 19011 Humboldt Little River Beach, few miles S of Trinidad. Comment
  HSC104094  Pinguicula macroceras Monica Rodriguez, William A. Worley 2015-3-21 25 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  CAS-BOT-BC73288  Pinus contorta W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC45891  Pinus contorta J. P. Smith 1971-10-6 4962 Humboldt Dunes at end of Murray Rd., McKinleyville, Bulk Collection # 154 Comment
  UCD134473  Pinus contorta H. E. Parks 1931-5-1 s.n. Humboldt Samoa. Comment
  UCD134418  Pinus contorta var. contorta Linda M. Barker 1976-7-5 1641 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC54523  Pinus jeffreyi Overton, Butler 1979-7-23 9455 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC72797  Pinus monticola Gail Newton 1980-6-17 206 Humboldt Near Onion Mtn. 1341 Comment
  HSC95784  Pinus monticola Will Ferrand 2002-4-27 37 Humboldt Off Titlow Hill Rd. 0.75 mi. S of intersection of Titlow Rd. and Hwy. 299 884 Comment
  UC55658  Pinus ponderosa P. E. Goddard 1901-7-12 67 Humboldt Hupa Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC1196413  Piperia unalascensis Joseph P. Tracy 1926-5-2 7416 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC24556  Pityopus californicus Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  UC1239573  Plagiobothrys bracteatus Joseph P. Tracy 1919-5-31 5152 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC41225  Plagiobothrys hispidulus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3497 Humboldt Above Alder Springs 1585 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UC179943  Plagiobothrys reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC526821  Plagiobothrys reticulatus Joseph P. Tracy 1932-5-10 9962 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  UC552842  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  JEPS61000  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  UC1196145  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  RSA18012  Plantago hirtella var. galeottiana Carl B. Wolf 1927-8-22 781 Humboldt Big Lagoon. Comment
  HSC16840  Plantago lanceolata D. B. Bader 1963-4-1 13 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC89480  Plantago lanceolata P. A. Daly 1986-3-12 75 Humboldt Trinidad Head 61 Comment
  HSC67513  Plantago maritima J. P. Smith 1976-7-3 8933 Humboldt Just N of Samoa Bridge Comment
  RSA412592  Plantago purshii var. oblonga H. M. Pollard 1947-8-23 s.n. Humboldt Air Landing Field, west of Orleans. Comment
  UC429188  Platanthera Franklin P. Nutting Humboldt Bridge Creek, n California Bridge Creek Comment
  RSA21199  Platanthera leucostachys Carl B. Wolf 1937-8-10 9087 Humboldt Big Lagoon, bog at state park. 6 Comment
  HSC31185  Platanthera sparsiflora D. E. Anderson 1972-6-20 5753 Humboldt N slope of Horse Mtn. Comment
  JEPS49012  Platanthera sparsiflora Hilda W. Grinnell 1932-7-19 28 Humboldt boggy meadows near Camp McKay; So. Fork Mt. Comment
  UC1540409  Platystemon californicus Gary L. Hannan 1976-5-25 166 Humboldt New Bavy Base Road, 6.6 km S of bridge to Eureka Comment
  JEPS5131  Plectritis brachystemon Lincoln Constance 1934-6-3 802 Humboldt 1 mi n of Dyerville (Road from High Rock (on Redwood Highway) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC100117  Pleuricospora fimbriolata Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC48728  Pleuricospora fimbriolata J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 524 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 186 1037 Comment
  SEINET6652845 Image available Pleuricospora fimbriolata Joseph P. Tracy 1925-1 7184 A Humboldt Northern Coast Ranges: High Prairie on Bald Mountain 1067 Comment
  UC1152046  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  CAS-BOT-BC244360  Poa annua Henry M. Pollard 1987-8-30 s.n. Humboldt North Klamath River road near Redcap Creek, Orleans region Comment
  HSC10618  Poa annua R. H. Berg 1963-3-1 5 Humboldt Arcata, Fickle Hill area. Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  UC525632  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 60 Comment
  UC594152  Poa douglasii S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  UCD91030  Poa douglasii subsp. douglasii Linda M. Barker 1976-5-13 1491 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  POM161908  Poa howellii Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville. Facing south fork of Eel River. 91 Comment
  UC1103184  Poa kelloggii J. P. Tracy 1901-6-16 1151 Humboldt immediate vicinity Eureka 0 Comment
  HSC38923  Poa macrantha Linda M. Barker 1976-5-13 1491 Humboldt 3 mi. W of Arcata. Comment
  RSA296739  Poa macrantha J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC34123  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit Comment
  UC525661  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 1/2 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts 1828 Comment
  HSC26778  Poa trivialis Thomas W. Nelson 1971-5-31 462 Humboldt 915 Comment
  UC249871  Poa trivialis Joseph P. Tracy 1923-5-30 6245 Humboldt Salmon Creek Corners; Northern Coast Ranges, Humboldt Bay 6 Comment
  CAS-BOT-BC232889  Polemonium carneum Doris K. Kildale 1926-3-20 1535 Humboldt Big Lagoon Comment
  UC668190  Polygala californica Joseph P. Tracy 1938-7-5 16002 Humboldt by old Strong's District School House (5 mi e of Carlotta); Carlotta, old Strong's District School House 45 Comment
  UC35075  Polygala cornuta var. cornuta Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC672974  Polygonum bistortoides Joseph P. Tracy 1930-7-16 8924 Humboldt McKay Camp South Fork Mountain 1676 Comment
  UC30051  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC1225796  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt on Box Camp Trail Trinity Summit 1676 Comment
  UC535117  Polygonum douglasii subsp. spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  UC1101153  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1234 Humboldt Town of Blue Lake; pond on s side Comment
  RSA178533  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt On trail betw Box Camp and Croghon Hole. 1677 Comment
  JEPS50609  Polygonum persicaria Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA244991  Polygonum persicaria Norman Dennis 1965-6-8 109 Humboldt Samoa Peninsula along the W side of the Humboldt Bay. Comment
  HSC99116  Polygonum phytolaccifolium Cara Witte 2008-6-18 741 Humboldt 2 miles north of the intersection between National Forest 1 and Friday Ridge Road/ 6N08 1580 Comment
  CAS-BOT-BC419955  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt South Fork Mountain. Near McKay Camp. 1676 Comment
  UC162921  Polygonum punctatum Joseph P. Tracy 1911-7-8 3473 Humboldt Clover Flat mine Northern Coast Ranges, Valley of Trinity River (along streamlet, near mouth of Willow Creek) 152 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  UC1222471  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1947-8-24 17923 Humboldt on Box Camp Trail 1/2 mi w summit; Trinity Summit 1676 Comment
  HSC53800  Polygonum spergulariiforme Griswold, Butler 1979-7-10 6221 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC103989  Polypodium calirhiza M. F. Norman 2015-4-11 21 Humboldt Arcata, Ma-le'l Dunes Comment
  UC249781  Polypodium glycyrrhiza Joseph P. Tracy 1924-2-24 6602 Humboldt along Eel River from S Fork to Scotia (near McKee's Mill); Northern Coast Ranges 60 Comment
  UC1472769  Polypodium scouleri Mrs. Carlotta C. Hall 1924-8-9 231 Humboldt Wilder ranch near Carlotta Comment
  SEINET200576 Image available Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt on pasture. Comment
  UCSC000004  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile N.E. of Samoa 3 Comment
  UC204533  Polypogon maritimus Joseph P. Tracy 1918-7-1 4967 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  UC552696  Polypogon maritimus Joseph P. Tracy 1934-7-9 13351 Humboldt Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 152 Comment
  UCD91203  Polypogon maritimus A. H. Murphy 1951-6-13 61 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  RSA46871  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove. Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  RSA152378  Polypogon viridis Joseph P. Tracy 1943-8-29 17445 Humboldt [Unspecified] Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  HSC13042  Polystichum munitum T. C. DeCew 1970-11-14 35 Humboldt HSU Campus Comment
  HSC54569  Polystichum munitum Overton, Butler 1979-7-24 9597 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC98660  Polystichum munitum Cara Witte 2007-7-26 597 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1443 Comment
  RSA1504  Polystichum munitum E. R. Johnson 1929-08 1409 Humboldt Arcata Redwood Park 76 Comment
  UC249776  Polystichum munitum Joseph P. Tracy 1924-8-10 6803 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges Comment
  JEPS394  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA152546  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC195349  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  JEPS42953  Potamogeton richardsonii E. G. Pluke 1926-8-1 Humboldt w of Dow's Prairie (at mouth of Widow White Creek); Widow White Creek 3 Comment
  HSC18724  Potentilla anserina subsp. pacifica S. J. Hawks 1965-5-14 66 Humboldt 2 mi. NW of McKinleyville Comment
  HSC18730  Potentilla anserina subsp. pacifica J. F. Knezevich 1967-5-23 453 Humboldt N of Trinidad at Big Lagoon 15 Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC99437  Potentilla drummondii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 86 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC100633  Potentilla glandulosa Carl C. Marshall Jun 1887 447 Humboldt Spruce Grove. Comment
  HSC98969  Potentilla glandulosa subsp. reflexa Cara Witte 2007-6-27 364 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC49151  Proboscidea louisianica Garry Markegard 1979-9-11 Humboldt Along Bald Hills Rd. ca. 400 ft. N of the Rd. between Williams Ridge and Cagle Ridge at old stage stop ca. 12 mi. from Jct. with State Route 101, Simpson property, Mr. Emmss caretaker, adjacent to vegetable garden. Comment
  CAS-BOT-BC508640  Prosartes hookeri Doris K. Kildale 1926-7-22 2420 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  SEINET12050891  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  SEINET12054299  Prosartes smithii Unknown 1936-1 13353 Humboldt near Scotia Comment
  HSC98985  Prunella vulgaris Cara Witte 2007-7-3 410 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1392 Comment
  UC1196728  Prunella vulgaris var. lanceolata J. P. Tracy 1900-7-22 903 Humboldt immediate vicinity Eureka 0 Comment
  RSA289937  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt Bull Creek Region, South Fork Eel River 122 Comment
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  CAS-BOT-BC159830  Prunus avium Henry M. Pollard 1948-7-20 s.n. Humboldt Near Orleans Escape Comment
  HSC97488  Prunus emarginata C. Witte 2007-5-18 41 Humboldt Intersection to Grouse Mountain Lookout. 1644 Comment
  JEPS44944  Prunus emarginata Joseph P. Tracy 1917-5-6 4780 Humboldt at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  OBI36664  Prunus emarginata David J. Keil 1983-7-2 17323 Humboldt Ca. 4 mi SE ofSR 299 along titlow Hill Rd below Horse Mtn Summit Rd Comment
  CAS-BOT-BC357271  Pseudognaphalium microcephalum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC357273  Pseudognaphalium microcephalum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC57047  Pseudognaphalium thermale Overton, Butler 1979-7-24 9696 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 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
  BLMAR148  Pseudotsuga menziesii Donald Hazlett 1994-6-9 148 Humboldt King range, E-facing slope off hourse mountain ridge 609 Comment
  CAS-BOT-BC80115  Pseudotsuga menziesii Doris K. Kildale 1928-4-29 5969 Humboldt Horse Mountain Comment
  HSC98638  Pseudotsuga menziesii Cara Witte 2008-7-11 884 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA134611  Pseudotsuga menziesii P. C. Everett, B. K. Balls 1959-10-25 23971 Humboldt 7 mi SW from Ferndale along Old Coast Road to Capetown. 564 Comment
  HSC41283  Pseudotsuga menziesii var. menziesii Brad Klipfel 1974-7-23 473 Humboldt Horse Mountain, NW from the towers Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  CAS-BOT-BC361928  Psilocarphus tenellus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC1160  Pteridium aquilinum var. pubescens Gene S. Van Horn 1962-5-25 27 Humboldt 200 ft. N of main house at 250 E 17th St., Arcata 61 Comment
  HSC72628  Pteridium aquilinum var. pubescens J. P. Smith 1977-7-3 9255 Humboldt Six Rivers National Forest, along FS Rd. 11N17, above Blue Lake 762 Comment
  UC275294  Pterostegia drymarioides Joseph P. Tracy 1923-5-19 6207 Humboldt coast bluffs Trinidad; Northern Coast Ranges, Trinidad 60 Comment
  JEPS66563  Pyrola crypta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1584 Comment
  HSC54554  Pyrola dentata Overton, Butler 1979-7-24 9560 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC72790  Pyrola dentata M. A. Baker 1980-6-16 1935 Humboldt Near Monks Camp 109 Comment
  HSC54854  Pyrola picta G. L. Clifton 1979-7-25 10741 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1225818  Pyrola picta Joseph P. Tracy 1948-8-15 18148 Humboldt Trinity Summit, on ridge 2 miles east of Grove's Prairie 1524 Comment
  UC412733  Pyrola picta Harley P. Chandler Jun 1901 1524 Humboldt Klamath River 457 Comment
  UC412735  Pyrola picta Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 Comment
  UC175930  Quercus garryana Joseph P. Tracy 1912-7-31 3930 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC667985  Quercus garryana var. breweri Joseph P. Tracy 1935-7-14 14091 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA134145  Quercus garryana var. garryana Percy C. Everett 1959-10-24 23955 Humboldt 4.7 mi. s. from Bluff Creek, Hwy. 96 from Orleans to Weitchpec. 122 Comment
  HSC8266  Quercus kelloggii Doris K. Kildale 1926-9-9 2682 Humboldt Low Gap of Mad River at Black Oaks 747 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  HSC72800  Quercus sadleriana Gail Newton 1980-6-17 219 Humboldt Near Onion Mtn. 1341 Comment
  JEPS49020  Quercus sadleriana Hilda W. Grinnell 1932-7-9 4 Humboldt above Kerlin Creek; South Fork Mt. 1524 Comment
  UCD47406  Quercus vacciniifolia H. L. Mason 1932-7-21 7018 Humboldt East slope of Southfork Mts. On road Arcata to Weaverville, Humboldt County. Comment
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Oct 6 2006
  UC1196506  Quercus wislizeni Joseph P. Tracy 1923-10-14 6577 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1222294  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt 7 mi n Harris; Mail Ridge Comment
  UC160948  Ranunculus alismifolius var. alismellus Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5767 Humboldt Trinity Summit Comment
  UC1103003  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1913-3-9 4024 Humboldt Alton Northern Coast Region (ditch by roadside) 30 Comment
  UC1103018  Ranunculus arvensis Joseph P. Tracy 1940-5-17 16554 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
Read comments
Jun 18 2011
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 Comment
  HSC70952  Ranunculus orthorhynchus J. M. DiTomaso 1981-5-15 2008 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  CDA3482  Ranunculus repens T. C. Fuller 1968-7-3 17442 Humboldt North side of Elk River Road, 2 miles east of Highway 101 freeway, ca. 5 miles south of Eureka. 0 Comment
  HSC100902  Ranunculus repens Carl C. Marshall 167 Humboldt No data. Comment
  HSC55295  Ranunculus uncinatus Griswold, Butler 1979-7-10 6337 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  POM118711  Ranunculus uncinatus var. parviflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  POM311438  Ranunculus uncinatus var. parviflorus D. E. Breedlove 1962-6-8 3072 Humboldt Along Hwy 101, 8 miles N of Orick. 61 Comment
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  CAS-BOT-BC55967  Rhamnus ilicifolia Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  UC1197988  Rhamnus purshiana Joseph P. Tracy 1935-7-25 14238 Humboldt lower end of Brett Hole Trinity Summit, Brett Hole 1584 Comment
  UC1197996  Rhamnus purshiana Mary Harriet Tracy 1946-5-30 Humboldt 5 mi e Carlotta; Van Duzen River, Riverside Park 30 Comment
  UC198576  Rhamnus purshiana Joseph P. Tracy 1917-9-2 4847 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  CAS-BOT-BC56609  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  RSA69211  Rhododendron macrophyllum A. D. Tenney 1925-04 6020 Humboldt Arcata. Comment
  UCD67631  Rhododendron macrophyllum D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  UC1197792  Rhododendron occidentale Joseph P. Tracy 1921-6-19 5837 Humboldt along road between Three Creeks and mouth of Willow Creek (above Koby's); Northern Coast Ranges 609 Comment
  UCSB21216  Rhododendron occidentale Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC200388  Rhododendron occidentale var. paludosum Doris K. Kildale 1927-6-26 3589 Humboldt Patrick's [Patricks] Point Comment
  HSC47966  Rhododendron occidentale var. paludosum Brad Klipfel 1974-9-17 582 Humboldt Horse Mountain Comment
  HSC101979  Ribes binominatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 876 Humboldt Patterson Meadows 1566 Comment
  HSC20277  Ribes bracteosum T. W. Beck 1963-4-13 25 Humboldt Camp Bauer, Korbel, near Mad River Comment
  HSC64260  Ribes bracteosum J. O. Sawyer, M. A. Ericksen 1979-6-23 3396 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC667077  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16227 Humboldt Mouth Little River 6 Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  CAS-BOT-BC168854  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  HSC56246  Ribes lacustre Walter Overton 1979-8-1 12353 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC667070  Ribes lacustre Joseph P. Tracy 1933-7-16 12784 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC176808  Ribes laxiflorum Doris K. Kildale 1926-3-24 1681 Humboldt Ryan Slough - on road to Occidental Ranch Comment
  JEPS48559  Ribes lobbii Hilda W. Grinnell 1932-7-9 7 Humboldt below Camp McKay; So. Fork Mt. 1584 Comment
  UC667056  Ribes lobbii Joseph P. Tracy 1933-7-16 12783 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC667058  Ribes lobbii Joseph P. Tracy 1935-5-12 13801 Humboldt summit between North Fork Mad River and Redwood Creek (on Trinity Highway) 670 Comment
  UC902101  Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC37446  Ribes marshallii Linda M. Barker, J. O. Sawyer, Jane Sawyer, D. A. Thornburgh 1976-7-3 1631 Humboldt North Trinity Mountain Summit 1940 Comment
  HSC20319  Ribes menziesii Doris K. Kildale 1926-3-26 1650 Humboldt Old Fortuna Rd. near junction with new Hwy. beyond Fernbridge Comment
  HSC34640  Ribes menziesii J. M. Sauser 1975-4-9 2 Humboldt Old Arcata Rd., 2 mi. S of junction with Jacoby Creek Rd. Comment
  UC154122  Ribes menziesii J. P. Tracy 1904-7-31 2131 Humboldt immediate vicinity Eureka 0 Comment
  POM160297  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville. 122 Comment
  CAS-BOT-BC198899  Ribes roezlii var. cruentum Doris K. Kildale 1926-6-27 2232 Humboldt Little Van Duzen River on Bridgeville-Weaverville Road 640 Comment
  HSC55321  Ribes roezlii var. cruentum Griswold, Butler 1979-7-10 7119 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  RSA0024583  Ribes roezlii var. cruentum Jim R. Shevock 1972-3-26 1465 Humboldt Panther Ridge, W of Willow Creek. 305 Comment
  SBBG27512  Ribes sanguineum L. Constance, R. C. Rollins 1942-5-11 Humboldt near summit 8 mi E of Blue Lake Comment
  UCD102487  Ribes sanguineum G. F. Hrusa 1992-5-5 10436 Humboldt Cedar Camp Rd. approximately 10 m. west of Orleans. Mile 9.0. Comment
  CAS-BOT-BC144681  Ribes sanguineum var. glutinosum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC144683  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144687  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC103221  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-5-2 14 Humboldt Off 299 between Big Bar and Burnt Ranch. Up Forest Route 4 approx. 8 miles. At the turnoff towards Ironside Mountain. 1057 Comment
  HSC102609  Ribes viscosissimum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1596 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC58107  Ribes viscosissimum G. L. Clifton, Griswold 1979-8-1 12042 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1198918  Ribes viscosissimum Joseph P. Tracy 1932-7-15 10606 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  JEPS2836 Image available Romanzoffia tracyi Joseph P. Tracy 1933-5-9 11008 Humboldt wet slide on bluff near Ocean; Northern Coast Region, Vicinity of Trinidad; Vicinity of Trinidad, Humboldt Co. 15 Comment
  CAS-BOT-BC74506  Rorippa curvisiliqua Doris K. Kildale 1926-7-18 2391 Humboldt Orick. Comment
  CAS-BOT-BC74513  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC552285  Rorippa curvisiliqua Joseph P. Tracy 1934-7-30 13500 Humboldt along coast in front of s end Stone Lagoon (Dry Lagoon); along coast in front of s end Stone Lagoon 3 Comment
  UC667029  Rosa Joseph P. Tracy 1936-8-24 15179 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC667042  Rosa californica Joseph P. Tracy 1933-6-25 12617 Humboldt Camp Grant Eel River (along river) 60 Comment
  CAS-BOT-BC146475  Rosa gymnocarpa Doris K. Kildale 1925-8-16 1142 Humboldt Trinity Summit Trail between Horse Linto Creek & [Tish-tang-i-tang] Tish Tang a Tang 1371 Comment
  HSC45400  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-1 3571 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  HSC58243  Rosa gymnocarpa G. L. Clifton, Griswold 1979-8-2 12413 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD113883  Rosa gymnocarpa T. E. Weier 1942-5-21 s.n. Humboldt Perriot's Redwood Grove, near Dyerville, Highway 101. Comment
  CAS-BOT-BC146845  Rosa nutkana Doris Kildale Gillespie 1931-6-7 10644 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC19632  Rosa nutkana W. A. Heaton 1965-5-17 12 Humboldt 1/2 mi. N of Trinidad St. Park Comment
  UC14149  Rosa nutkana var. nutkana E. Ethel Tracy 1901-9-5 1278 Humboldt Eureka Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  HSC47955  Rosa spithamea Brad Klipfel 1974-7-23 474 Humboldt Horse Mountain Comment
  CAS-BOT-BC148222  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, Coast Mts. North of San Francisco Bay Comment
  UC492171  Rubus laciniatus Joseph P. Tracy 1927-10-8 8385 Humboldt Boyes' Prairie Northern Coast Ranges, Prairie Creek 60 Comment
  CAS-BOT-BC148384  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat 152 Comment
  HSC71715  Rubus leucodermis M. A. Baker 1980-6-26 2436 Humboldt Near Sims Creek 610 Comment
  HSC19661  Rubus parviflorus D. A. Shally 1965-5-15 53 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC57020  Rubus parviflorus Overton, Butler 1979-7-24 9632 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC81965  Rubus parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4944 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC89607  Rubus parviflorus M. Roantree 1985-8-25 11 Humboldt E side of Trinidad Head along paved rd. Comment
  SEINET5320889  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt North of Orick; North of Orick, Highway 101 reroute, near Redwood Park Comment
  CDA26338  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  CHSC59812  Rubus ursinus Mary Sacks 1977-4-8 3 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  HSC34808  Rubus ursinus David Peters 1975-4-9 5 Humboldt .1 mi. E of Kirkpatrick Quarry Rd. on Jacoby Cr. Rd. Comment
  HSC38943  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCD113990  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt 3 miles west of Arcata. Comment
  RSA89567  Rubus vitifolius Philip A. Munz 1954-7-23 19865 Humboldt 5 miles SE of Carlotta Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SBBG52989  Rumex acetosella J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, Loleta Comment
  HSC44539  Rumex acetosella Brad Klipfel 1973-7-15 155 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET4206289  Rumex acetosella J. Raycraft 1966-4-23 s.n. Humboldt Arcata Comment
  HSC49621  Ruppia maritima R. York 1979-5-23 311 Humboldt Old abandoned logging pond at the S end of H St. in Arcata 0 Comment
  HSC100868  Rytidosperma penicillatum J. P. Smith Sep 2005 12151 Humboldt Trinidad Head. 61 Comment
  JEPS79973  Sagina maxima subsp. crassicaulis Joseph P. Tracy 1940-5-18 16564 Humboldt Trinidad 15 Comment
  HSC24772  Sagina maxima subsp. crassicaulis Barbara Kelly 1971-8-18 174 Humboldt Trinidad State Beach Comment
  RSA246919  Salicornia virginica R. F. Thorne, P. Everett 1965-8-7 35205 Humboldt Samoa Peninsula. 0 Comment
  UC55430  Salicornia virginica J. P. Tracy 1901-8-7 1255 Humboldt Samoa Humboldt Bay 0 Comment
  CAS-BOT-BC129885  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129898  Salix bonplandiana Joseph P. Tracy 1933-6-9 12529 Humboldt Shively - Northern Coast Ranges 30 Comment
  HSC97547  Salix exigua var. hindsiana Ivy Watson 2008-9-11 4 Humboldt Blue Lake, 300 m downstream of the Hatchery Rd. bridge, N bank 22 Comment
  CAS-BOT-BC104099  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC106849  Salix hookeriana Harold E. Parks 1931-5-12 0955 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC106861  Salix hookeriana W. J. Ferlatte 1967-6-13 1117 Humboldt near mouth of Mad River 3 Comment
  CAS-BOT-BC106863  Salix hookeriana W. J. Ferlatte 1967-6-13 1121 Humboldt Moonstone coastal bluff 30 Comment
  CAS-BOT-BC107678  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10732 Humboldt Lagoon between the Mad and Little Rivers Comment
  CAS-BOT-BC107711  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10734 Humboldt Eureka Comment
  CAS-BOT-BC107713  Salix hookeriana Doris K. Kildale 1927-3-25 3003 Humboldt Near Buckspot School House 50 Comment
  CAS-BOT-BC107717  Salix hookeriana Doris K. Kildale 1926-6-18 2409 Humboldt Gold Bluffs, coastal bluffs Comment
  CAS-BOT-BC107736  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107750  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107764  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1214 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9647  Salix hookeriana E. L. Smith 1971-8-17 1018 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC19955  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Fortuna, Eel River 10 Comment
  HSC40878  Salix hookeriana Linda M. Barker 1976-9-3 1693 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  POM160840  Salix hookeriana Joseph P. Tracy 1925-10-11 7280 Humboldt Near Loren Frost place, on Kneeland Road. Near Kneeland Prairie. 610 Comment
  UC1196554  Salix hookeriana Joseph P. Tracy 1936-9-27 15189 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1225922  Salix hookeriana Joseph P. Tracy 1947-7-2 17758 Humboldt 6 mi s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC275497  Salix hookeriana Joseph P. Tracy 1925-4-5 6951 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Rd.); Northern Coast Ranges 609 Comment
  UC275501  Salix hookeriana Joseph P. Tracy 1925-11-15 7314 Humboldt lowlands at foot of Table Bluff (near Salmon Creek); Northern Coast Ranges, Humboldt Bay 6 Comment
  UC504055  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC512092  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC481812  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 271 Humboldt between Miranda and Meyers (Sylvandale); S. Fork Eel R., Sylvandale Comment
  HSC19984  Salix lasiandra H. E. Parks, S. T. Parks 1932-4-16 1099 Humboldt Near Ferndale on the Eel River delta Comment
  UC176690  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1913-6-20 4218 Humboldt Dinsmore's Ranch opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  UC54675  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-4-7 1013 Humboldt immediate vicinity of Eureka 0 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  HSC20008  Salix lasiolepis J. P. Tracy 1933-4-2 10961 Humboldt Berry's Mt. on Trinity Hwy. E of Redwood Creek 762 Comment
  HSC70352  Salix lasiolepis M. A. Baker 1980-6-7 1841 Humboldt Near Ammon Creek 732 Comment
  HSC96359  Salix lasiolepis Gordon Leppig 1999-4-15 1116 Humboldt Big Lagoon County Park, Big Lagoon Bog, W fen edge 3 Comment
  HSC96597  Salix lasiolepis Gordon Leppig 2003-2-22 1812 Humboldt Arcata Marsh, NE corner of log pond 3 Comment
  HSC98056  Salix lasiolepis Cara Witte 2007-7-2 395 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  HSC99836  Salix lasiolepis Jimerson, J. Pageau 1979-6-22 601 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  JEPS12916  Salix lasiolepis Joseph P. Tracy 1927-5-13 7996 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS13836  Salix lasiolepis Joseph P. Tracy 1926-8-12 7760 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  JEPS14752  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1196611  Salix lasiolepis Joseph P. Tracy 1926-8-12 7762 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469407  Salix lasiolepis Joseph P. Tracy 1927-3-27 7868 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481291  Salix lasiolepis Harold E. Parks 1931-5-14 963 Humboldt between Alton and Carlotta; Van Duzen River 15 Comment
  UC506400  Salix lasiolepis Joseph P. Tracy 1932-8-21 10358 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC506506  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC506508  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512000  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512007  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1233 Humboldt 1 1/2 mi E of Alton ( Van Duzen River) 30 Comment
  UC519332  Salix lasiolepis Joseph P. Tracy 1933-10-15 13094 Humboldt near Miranda South Fork of Eel River 121 Comment
  UC519339  Salix lasiolepis Joseph P. Tracy 1933-5-14 12177 Humboldt Willow Creek Trinity River Valley (mouth) 152 Comment
  CAS-BOT-BC107417  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-7-27 2220 Humboldt Laribee Valley 701 Comment
  CAS-BOT-BC125619  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt Junction of the North and South Forks of Eel River Comment
  CAS-BOT-BC125624  Salix melanopsis Harold E. Parks 1931-5-28 01027 Humboldt Little River Lagoon, at sea level Comment
  SBBG57922  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC1196573  Salix melanopsis Joseph P. Tracy 1931-10-3 9703 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481343  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC519361  Salix melanopsis Joseph P. Tracy 1933-6-7 12513 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC519374  Salix melanopsis Joseph P. Tracy 1933-6-9 12532 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  CAS-BOT-BC129136  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  CAS-BOT-BC129164  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  HSC102104  Salix scouleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1007 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  JEPS12944  Salix scouleriana Joseph P. Tracy 1929-10-20 8680 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  POM219695  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge. Van Duzen River. 450 Comment
  UC490506  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC490508  Salix scouleriana Joseph P. Tracy 1932-9-16 10795 Humboldt near mouth of Mad River; Northern Coast Ranges 30 Comment
  UC506349  Salix scouleriana Joseph P. Tracy 1933-4-2 10958 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CAS-BOT-BC128989  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC128994  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC37880  Salix sitchensis Thomas W. Nelson 1976-3-22 2282 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  HSC59689  Salix sitchensis Marla J. Carollo 1979-5-4 61 Humboldt Clam Beach Lagoon, near Little River Beach, adjacent to Hwy. 101 Comment
  RSA171961  Salix sitchensis Robert F. Thorne 1957-9-2 18989 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC481215  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC481383  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Van Duzen R. Alton; , Alton 15 Comment
  UC490492  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC492340  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  HSC41315  Sambucus nigra subsp. caerulea Brad Klipfel 1974-9-2 539 Humboldt Horse Mtn. Comment
  HSC56467  Sambucus nigra subsp. caerulea Griswold, Butler 1979-7-12 7275 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  HSC3969  Sambucus racemosa var. racemosa E. W. Styskel 1963-4-2 13 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. Comment
  CHSC52919  Sanicula arctopoides L. P. Janeway 1984-4-11 728 Humboldt On the North Spit of Humboldt Bay; northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  HSC21618  Sanicula arctopoides F. B. Plett 1963-3-9 6 Humboldt 1 1/2 mi. N of Trinidad along old Hwy. 101 Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC100691  Sanicula bipinnata Carl C. Marshall 432 Humboldt Spruce Grove. Comment
  HSC37847  Sanicula crassicaulis Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  HSC68612  Sanicula crassicaulis Jacqueline Greenleaf 1980-7-16 245 Humboldt Near Buck Mountain. 1250 Comment
  UCD127966  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC642248  Sanicula crassicaulis Joseph P. Tracy 1937-5-8 7967 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  HSC68994  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 327 Humboldt Near Becker Cabin. 1143 Comment
  JEPS950  Sanicula tuberosa Joseph P. Tracy 1925-5-30 7037 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 701 Comment
  UC249600  Sanicula tuberosa Joseph P. Tracy 1922-5-29 6074 Humboldt Northern Coast Ranges, Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  UC642303  Sanicula tuberosa Joseph P. Tracy 1927-7-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  JEPS79976  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  JEPS26211  Saxifraga ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  UC1222363  Saxifraga ferruginea Joseph P. Tracy 1950-8-8 19295 Humboldt head of Croghan Hole (on Trinity Summit, [Granite Rock area]); Trinity Summit, Croghan Hole 1676 Comment
  HSC65984  Saxifragopsis fragarioides Gail Newton 1980-7-23 1751 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1197073  Scandix pecten-veneris Joseph P. Tracy 1923-3-17 6162 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC96371  Schoenoplectus mucronatus Gordon Leppig 2004-9-1 2196 Humboldt Eel River at Holmes Flat 400 Comment
  JEPS95079  Schoenoplectus pungens var. badius Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon, entering lagoon at boat ramp Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  SEINET3913367  Schoenoplectus pungens var. badius J. D. Ackerman 1975-6-10 465 Humboldt About 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila. Humboldt Bay.; 0 Comment
  UC183668  Scirpus acutus var. occidentalis Joseph P. Tracy 1907-7-20 2595 Humboldt region about Humboldt Bay (near Samoa); Northern Coast Region, region about Humboldt Bay 0 Comment
  UC419066  Scirpus acutus var. occidentalis H. E. Parks 1930-9-14 771 Humboldt n shore Big Lagoon; n shore Big Lagoon Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC7464  Scirpus microcarpus Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC175805  Scoliopus bigelovii Joseph P. Tracy 1913-3-9 4017 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC709438  Scoliopus bigelovii Joseph P. Tracy 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  UCD139810  Scoliopus bigelovii R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  UCD18586  Scoliopus bigelovii Roman Gankin 1956-3-17 104 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
  HSC72406  Scrophularia californica J. P. Smith 1973-5-26 6820 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  JEPS6741  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi s Arcata (Fickle Hill) 609 Comment
  RSA12446  Scutellaria antirrhinoides Carl B. Wolf 1934-7-1 5847 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  HSC57960  Sedum divergens G. L. Clifton, Griswold 1979-7-31 11660 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC66821  Sedum laxum subsp. heckneri Gail Newton 1980-7-22 1659 Humboldt Near Devils Backbone 1554 Comment
  HSC76354  Sedum laxum subsp. heckneri Denis Kearns 1981-6-24 32 Humboldt Near Cedar Camp 1219 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
  CAS-BOT-BC63826  Sedum spathulifolium Elizabeth Parsons Hawyer 1915-6-1 s.n. Humboldt Carlotta Comment
  JEPS25692  Sedum spathulifolium P. C. Hutchison 1961-5-22 2017 Humboldt along s side Willow Creek (n side hiway US 299, 2.6 mi e of Berry Summit); e of Berry Summit, s side Willow Creek Comment
  UC1225751  Sedum spathulifolium Joseph P. Tracy 1948-5-15 17981 1/2 Humboldt along Trinity Highway Willow Creek Canyon (on rocks at the East Fork Willow); East Fork Willow Creek, Willow Creek Canyon 457 Comment
  HSC89451  Selaginella oregana P. A. Daly 1986-3-12 85 Humboldt Trinidad Head 61 Comment
  UC302053  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC69735  Selaginella wallacei Donald L. Branscomb 1957-12-26 s.n. Humboldt Look Out Rock, Patrick's Point. Comment
  JEPS306  Selaginella wallacei Joseph P. Tracy 1932-3-29 9783 Humboldt coast bluffs Trinidad; Northern Coast Region 60 Comment
  UC1239503  Senecio glomeratus Joseph P. Tracy 1938-6-7 15856 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  UC1199241  Senecio integerrimus var. major Joseph P. Tracy 1938-5-1 15728 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  BLMAR294  Senecio integerrimus var. major Jennifer Anthony-Wheeler 2002-4-30 294 Humboldt Clark Butte 670 Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  JEPS48272  Sequoia sempervirens Joseph P. Tracy 1940-10-17 16770 Humboldt Dyerville 48 Comment
  JEPS48280  Sequoia sempervirens Mrs. Fay Howard 1929-10-5 Humboldt about 1 mi n Pepperwood (down the river) Comment
  RSA47159  Sidalcea malachroides Doris K. Kildale 1926-5-16 s.n. Humboldt Horse Mountain Comment
  HSC103274  Sidalcea malviflora subsp. patula John McRae 2007-6-10 Humboldt Approx. 75 ft. N of NE corner of Fieldbrook School property, west side of Fieldbrook Rd., on private property. 44 Comment
  UC146187  Sidalcea malviflora subsp. patula J. P. Tracy 1905-6-11 2193 Humboldt immediate vicinity Eureka (at Buckport); immediate vicinity of Eureka, at Buckport 0 Comment
  HSC98049  Sidalcea oregana subsp. eximia Cara Witte 2007-7-19 545 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1560 Comment
  UC1197968  Sidalcea oregana subsp. eximia Joseph P. Tracy 1932-9-16 10800 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UC668102  Silene antirrhina Joseph P. Tracy 1929-7-4 8615 Humboldt French Camp Ridge 1066 Comment
  HSC26255  Silene bolanderi Thomas W. Nelson 1971-5-31 444 Humboldt 915 Comment
  UC1537312  Silene californica Gordon H. True Jr. 1936-5-11 454 Humboldt 10 mi w Miranda (Elk Ridge); , w of Miranda 457 Comment
  UC1198350  Silene campanulata Joseph P. Tracy 1933-7-11 12675 Humboldt Horse Mountain 1432 Comment
  UC668094  Silene campanulata Joseph P. Tracy 1930-7-18 9032 Humboldt near McKay Camp (South Fork Mountain); , near McKay Camp 1676 Comment
  HSC39220  Silene campanulata subsp. glandulosa D. E. Anderson, J. P. Smith 1971-7-6 - 1322 Humboldt On Horse Mtn. Comment
  CAS-BOT-BC387075  Silene gallica C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC388938  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  JEPS23246  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  CAS-BOT-BC389057  Silene laciniata subsp. californica Carl B. Wolf 1927-8-29 1196 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge--Mt. Glen Comment
  HSC13925  Sisyrinchium bellum D. E. Anderson 1962-3-31 1966 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  UC249552  Sisyrinchium bellum Joseph P. Tracy 1921-4-24 5461 Humboldt Phillipsville facing South Fork of Eel River; Northern Coast Ranges 121 Comment
  POM299501  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge 33 Comment
  HSC13931  Sisyrinchium californicum J. F. Knezevich 1968-5-23 454 Humboldt N of Trinidad at Big Lagoon 0 Comment
  RSA699282  Sisyrinchium californicum J. R. Bruff 1930-08 s.n. Humboldt North of Trinidad Comment
  UC1192312  Sisyrinchium californicum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1196 Humboldt at the suthern outskirts of Eureka Comment
  UC15049  Smilacina racemosa Mrs. M. H. Manning April, 1901 13 Humboldt near Hupa Comment
  JEPS62118  Smilacina racemosa W. L. Jepson 1902-6-29 1950 Humboldt Hupa Rd. Berry's Ranch, Redwood Creek Comment
  HSC89586  Solanum aviculare M. Roantree 1985-5-24 57 Humboldt W side of Trinidad Head, along trail Comment
  UCD126873  Solanum aviculare Robert F. Thorne; P. Everett 1965-8-5 35160 Humboldt Samoa Dunes, at edge of Humboldt Bay. 3 Comment
  HSC20461  Solanum douglasii John Warner Hosking 1968-10-10 Humboldt Clam Beach Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  UC175202  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  RSA89769  Solidago spathulata P. A. Munz 1954-7-25 19873 Humboldt At Humboldt Lighthouse south of Samoa. Comment
  SD38300  Solidago spathulata Edith A. Purer 1932-7-27 4147 Humboldt Samoa Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1199286  Soliva sessilis Joseph P. Tracy 1921-4-24 5447 Humboldt South Fork Eel River Northern Coast Ranges, , Phillipsville F (Phillipsville Flat) 91 Comment
  HSC78964  Soliva sessilis L. P. Janeway, K. Berg 1984-4-11 721 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  CAS-BOT-BC374425  Sonchus asper F. A. MacF. 1934-6-22 13743 Humboldt Arcata, North coast of California Comment
  HSC6223  Sonchus oleraceus J. W. Johnson 1962-4-8 1216 Humboldt Arcata, Mad River Co. Park Comment
  UC56349  Sorbus californica J. Burtt Davy 1899-6-23 5835 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 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
  HSC89909  Sparganium eurycarpum Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  HSC37572  Spartina densiflora J. D. Ackerman 1975-6-10 461 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  RSA187158  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. 0 Comment
  JEPS45003  Spiraea densiflora Joseph P. Tracy 1926-6-20 7630 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  UC719818  Spiraea douglasii Rogers McVaugh 1941-8-3 6216 Humboldt ca 1.25 mi s Patrick's Point State Park, Headquarters 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
  UC666995  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-12 15640 Humboldt Snow Camp 1402 Comment
  HSC36650  Spiranthes romanzoffiana J. D. Ackerman 1975-8-9 631 Humboldt Corner of Guintoli Lane and West End Rd. Vacant lot. Comment
  UC666993  Spiranthes romanzoffiana Joseph P. Tracy 1934-7-21 13477 Humboldt near Samoa (edges of dunes); Humboldt Bay 6 Comment
  JEPS62958  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC1239728  Stachys ajugoides var. rigida Joseph P. Tracy 1913-6-20 4217 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC577316  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC162688  Stachys ajugoides var. rigida Joseph P. Tracy 1911-7-11 3515 Humboldt hills along Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  UCLA71134  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  POM283395  Stachys chamissonis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, 8 mi. S. of Trinidad. 15 Comment
  HSC59665  Stachys chamissonis George Kirn 1977-9-10 Humboldt Eureka, Cooper Gulch S of 14th St. 20 Comment
  SBBG6537  Stachys rigida H. and M. Dearing 1939-6-23 3696 Humboldt 12 mi E of Arcata Comment
  HSC54885  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-7-25 10894 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC161060  Stellaria crispa Joseph P. Tracy 1906-5-6 2438 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC89487  Stellaria media P. A. Daly 1986-3-12 67 Humboldt Trinidad Head, along trail 61 Comment
  HSC89600  Stellaria media M. Roantree 1985-4-28 24 Humboldt E side of Trinidad Head, along dirt road Comment
  BLMAR188  Stellaria nitens Donald Hazlett 1994-6-7 188 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1103547  Stellaria nitens Joseph P. Tracy 1918-5-1 4899 Humboldt Kneeland Prairie Northern Coast Ranges (Dan McBride place) 762 Comment
  UC204697  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  HSC40578  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1976-6-22 2870 Humboldt SW facing slope on Goat Hill. 1666 Comment
  CAS-BOT-BC87615  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt South of airport, about 5 miles east of Kneeland. Comment
  UC1541457  Streptanthus tortuosus H. E. Parks June 1951 Humboldt Rock Pile Knneland Comment
Read comments
Jun 21 2013
  UC162599  Streptanthus tortuosus Harley P. Chandler June 1901 1441 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC57137  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-25 9914 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC57631  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-25 10783 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC57967  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-31 11685 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC103688  Streptopus amplexifolius M. R. Mesler 2013-7-24 1629 Humboldt Big Hill Road at boundary of SRNF and Hoopa land 1442 Comment
  UC175818  Streptopus amplexifolius var. americanus Joseph P. Tracy 1912-8-1 3956 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC98636  Swertia radiata Cara Witte 2008-7-3 825 Humboldt National Forest 1. 2 miles south from intersection with 6N01B. 1575 Comment
  HSC99468  Symphoricarpos mollis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 122 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC5046  Symphyotrichum chilense H. E. Parks, S. T. Parks 1930-9-14 772 Humboldt Big Lagoon Comment
  HSC96502  Symphyotrichum chilense Gordon Leppig 1998-8-23 1072 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC186451  Symphyotrichum chilense Joseph P. Tracy 1915-9-12 4672 Humboldt Laribee Creek (mouth of) Northern Coast Ranges 91 Comment
  UCD136539  Symphyotrichum chilense Collector unknown Date unknown s.n. Humboldt exact location unknown. Comment
  CAS-BOT-BC98974  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1218 Humboldt Trinity Summit near Ranger Station 1828 Comment
  JEPS35821  Symphyotrichum subspicatum Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8966 Humboldt 9.5 mi n and w, s of Cape Mendocino Petrolia; Cape Mendocino Comment
  JEPS26388  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 609 Comment
  UCD124640  Synthyris reniformis D. C. Hagar 1957-6-20 145 -a Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  JEPS26264  Synthyris reniformis Joseph P. Tracy 1948-8-15 18116 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 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
  UC902237  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 1/2 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  CHSC1902  Synthyris reniformis var. cordata H. Mapes 1953-3-9 Humboldt Comment
  CAS-BOT-BC376832  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  HSC97580  Taraxacum officinale C. Witte 2007-5-18 37 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  HSC49986  Tauschia glauca M. Andre' Baker 1979-6-7 787 Humboldt On N bank of the road to Snow Mt. 610 Comment
  HSC89427  Tellima grandiflora P. A. Daly 1984-5-8 4 Humboldt Trinidad Head 61 Comment
  UC1198892  Tellima grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9087 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC100656  Tellima grandiflora Carl C. Marshall May 1886 190 Humboldt Damp places near streams. Comment
  HSC89548  Tellima grandiflora M. Roantree 1985-5-2 30 Humboldt E side of Trinidad Head. Comment
  CAS-BOT-BC81308  Thuja plicata Doris K. Kildale 1927-3-22 2935 Humboldt North Fork Elk River Comment
  CHSC19508  Thuja plicata Wendell Wood 1970-9-22 298 Humboldt McKinleyville. East end of Chateau Way. 106 Comment
  NY17196  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  NY17205  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM299149  Thuja plicata H. E. Parks 1932-7-25 1139 Humboldt Camp 21 , Hammond Lumber Company, Trinidad 152 Comment
  RSA301968  Thuja plicata J. R. Shevock 1972-3-26 1468 Humboldt Along Hwy 299. 366 Comment
  UC1541645  Thuja plicata Harold E. Parks 1932-7-25 1139 Humboldt Trinidad, Camp Twenty One Trinidad; , Camp Twenty One 152 Comment
  UC154149  Tiarella trifoliata var. unifoliata Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa; near Hupa Comment
  SD50778  Tiarella trifoliata var. unifoliata Darley F. Howe 1959-8-5 2809 Humboldt Drexel Grove, 5 miles north of Weott on #101 alternate Comment
  SD88373  Tiarella trifoliata var. unifoliata Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  UC180222  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt near Seidell Ranch (peat bog); Bald Mountain, between High Prairie and Snow Camp Comment
  HSC38208  Tolmiea diplomenziesii Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  HSC20439  Tolmiea diplomenziesii F. B. Plett 1963-5-15 47 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC45069  Torilis arvensis R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  SEINET244810 Image available Torreyochloa pallida var. pauciflora J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain. 1524 Comment
  SEINET7295170 Image available Torreyochloa pallida var. pauciflora Richard Spellenberg 1965-1 1135 Humboldt In partly shaded area, in redwood forest; about 1 1/2 mi. e. of Bayside (which is 2 mi. s. of Arcata) on road leading up Jacoby Creek Comment
  BLMAR387  Triantha occidentalis Jennifer Anthony-Wheeler 2004-7-1 387 Humboldt Horse Mtn, mixed conifer in serp.seep Comment
  HSC58100  Triantha occidentalis subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 12030 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC604644  Trichostema laxum Joseph P. Tracy 1938-8-14 16119 Humboldt South Fork of Trinity River, mountain slopes W of mouth 304 Comment
  HSC17928  Trientalis latifolia Paul Shields May 1955 Humboldt HSC Campus Comment
  HSC70386  Trientalis latifolia M. A. Baker 1980-6-7 1859 Humboldt Near Ammon Creek 732 Comment
  HSC48609  Trientalis latifolia Mark Flippo 1978-4-8 3 Humboldt McKinleyville; Bella Vista Hill Comment
  HSC89588  Trientalis latifolia M. Roantree 1985-5-24 56 Humboldt NW side of Trinidad Head, along trail Comment
  SEINET8729732 Image available Trientalis latifolia H. E. Parks, S. T. Parks 1952-1 7548 A Humboldt Spruce Cove, Trinidad. 0 Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  HSC45121  Trifolium bifidum R. Sutherland 1978-5-19 17 .19578 Humboldt 183 Comment
  UC1197054  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek, 5 miles SE of Bridgeville, Hillside Comment
  UC1223502  Trifolium bifidum var. decipiens Joseph P. Tracy 1939-4-29 16256 Humboldt 2 mi below Orleans (nw side); Klamath River 121 Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  JEPS65839  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC165572  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning Apr 1 1900-May 1 1900 Humboldt Hupa Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC35278  Trifolium eriocephalum J. D. Ackerman 1975-6-18 470 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  SEINET6934968  Trifolium fucatum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  UCD109049  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. 1 mile E of Cape Mendocino. 152 Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC48764  Trifolium longipes Brad Klipfel 1973-6-10 100 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS33188 Image available Trifolium longipes subsp. elmeri Chesnut and Drew August, 1888 240 Humboldt S. Fork Trinity River. Comment
  HSC39424  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2711 Humboldt Along old trail from lookout to Blocksburg 1555 Comment
  UC1223332  Trifolium longipes var. oreganum Joseph P. Tracy 1947-7-27 17836 Humboldt Horse Mtn Comment
  UC1197237  Trifolium macraei Joseph P. Tracy 1901-5-18 1098 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  HSC22536  Trifolium microcephalum D. E. Anderson, J. P. Smith 1970-5-10 5057 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  UC1197539  Trifolium microcephalum Joseph P. Tracy 1910-6-5 3145 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  UC1197547  Trifolium microdon Joseph P. Tracy 1925-8-9 7225 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC495697  Trifolium microdon Joseph P. Tracy 1927-6-18 8184 Humboldt between Petriola and the ocean hills; Northern Coast Ranges 152 Comment
  UC1223319  Trifolium obtusiflorum Joseph P. Tracy 1948-6-13 18060 Humboldt Garberville 243 Comment
  UC1197485  Trifolium obtusiflorum Joseph P. Tracy 1911-6-29 3267 Humboldt near Hydesville (Van Duzen River); Northern Coast Region 60 Comment
  UC249721  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UCR122354  Trifolium pratense George K. Helmkamp, E. A. Helmkamp 2001-7-8 6963 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  UC1223537  Trifolium variegatum var. melananthum Joseph P. Tracy 1936-6-28 15010 Humboldt e Korbel (near Murphy Meadows on mtn); Bald Mtn Comment
  UC1103457  Trifolium variegatum var. variegatum Joseph P. Tracy 1925-8-9 7227 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC165551  Trifolium willdenovii Mrs. M. H. Manning 1901-4 70 Humboldt near Hupa Comment
  UC495690  Trifolium willdenovii Joseph P. Tracy 1932-5-1 9866 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC573542  Trifolium wormskioldii H. S. Yates 1936-6-18 5723 Humboldt 2 mi s mouth of Littler River; Eureka quad 3 Comment
  UC631039  Trifolium wormskioldii P. B. Kennedy 1925-8-29 Humboldt near Eureka Comment
  CAS-BOT-BC451804  Triglochin maritima Joseph P. Tracy 1934-7-20 13466 Humboldt Big Lagoon 3 Comment
  HSC59060  Triglochin maritima Thomas Wood 1979-5-4 154 Humboldt Big Lagoon Bog, N side, between the bog and the sea 0 Comment
  HSC82964  Triglochin maritima A. L. Eicher 1986-5-10 Humboldt Bordering Humboldt Bay, 0.3 mi. S of the jct. of Samoa Blvd. and Vance Ave. 1 Comment
  UC176697  Trillium albidum Joseph P. Tracy 1913-6-25 4333 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  CHSC3179  Trillium ovatum Robert D. Briggs 1966-4-2 R- 144 Humboldt Eight miles east of Blue Lake on State hwy. 299. Comment
  HSC41231  Trillium ovatum Brad Klipfel 1974-5-8 320 Humboldt Horse Mountain Comment
  UCR275118  Trillium ovatum Charity A. Hartshorn 2016-5-14 28 Humboldt Arcata Community Forest 244 Comment
  HSC34647  Trillium ovatum Thomas Anthony 1975-4-7 1 Humboldt 0.5 mi. N of Myers Flat on Avenue of the Giants Comment
  RSA244948  Trillium ovatum D. V. Sanford 1963-3-23 11 Humboldt Redwood forest behind Humboldt State College campus. Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  UC1537232  Trillium ovatum Gordon H. True Jr. 1936-2-26 329 Humboldt on Eel R. near Pepperwood; Eel. R. 91 Comment
  UCD19981  Trillium ovatum C. H. Lamoureux; R. Gankin 1956-3-17 1042 Humboldt Near southern boundary of Jensen Grove, on Hwy 101 between Meyers and Miranda. Comment
  SBBG68597  Triphysaria eriantha subsp. eriantha S. W. Hutchinson -Apr-1927 Humboldt Eureka 8 Comment
  HSC20854  Triphysaria eriantha subsp. eriantha J. R. Woodside 1963-5-1 21 Humboldt 1.25 mi. N of Fairhaven Comment
  HSC99105  Triphysaria pusilla Cara Witte 2008-6-15 734 Humboldt Coldspring Camp. 1394 Comment
  JEPS11165  Triphysaria versicolor subsp. versicolor J. P. Tracy 1944-5-14 17467 Humboldt Eureka Comment
  JEPS15193  Triphysaria versicolor subsp. versicolor R. Stahelin 1933-6-24 Humboldt Casper Eureka Quad. (e of Camp 19) Comment
  HSC103433  Triphysaria versicolor subsp. versicolor Thomas W. Nelson, Jane Nelson 2005-5-1 9305 Humboldt Eureka; vacant field at Broadway and Koster Streets. Comment
  CAS-BOT-BC199620  Trisetum canescens Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  POM207185  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA183534  Trisetum canescens H. S. Logsdon 1964-5-10 11 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  UC552772  Trisetum canescens Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt.; Northern Coast Ranges 1432 Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  HSC32517  Trisetum cernuum D. E. Anderson, S. Dowty, T. Nelson 1972-6-17 5711 Humboldt McKeown Ranch, N of Dinsmore Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  RSA256582  Triteleia bridgesii D. E. Anderson 1972-6-20 5725 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC89447  Triteleia laxa P. A. Daly 1984-7-15 34 Humboldt Trinidad Head 61 Comment
  UC1197715  Triteleia laxa Joseph P. Tracy 1948-5-31 18019 Humboldt Alder Point 152 Comment
  UCD139410  Triteleia laxa Joseph P. Tracy 1942-6-15 17129 Humboldt Humboldt County Englewood, Natural prairie, near Redcrest resort. 91 Comment
  CAS-BOT-BC526356  Triteleia laxa Doris K. Kildale 1925-6-28 791 Humboldt Kneeland Prairie, bald hills 762 Comment
  HSC26871  Triteleia laxa Clifton Raymond Chesbrough 1973-6-19 95 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC175816  Triteleia laxa Joseph P. Tracy 1913-6-19 4210 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC422834  Triteleia laxa P. E. Goddard 1907-5-29 b. 110 Humboldt Van Duzen Comment
  SEINET200846  Triticum aestivum J. P. Tracy 1922-7-16 6102 Humboldt CULTIVATED; Eureka 0 Comment
  HSC28304  Tsuga heterophylla Gary S. Lester 1973-12-8 61 Humboldt E of HSC Campus Comment
  UC1174867  Tsuga heterophylla P. C. Everett and E. K. Balls 1959-10-25 23963 Humboldt 22 mi w from Willow Creek (along U. S. Hwy. 299 to Arcata); U. S. Hwy. 299 579 Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  UCR275103  Typha domingensis Charity A. Hartshorn 2016-4-24 20 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CAS-BOT-BC91109  Umbellularia californica Doris K. Kildale 1926-11-25 2832 Humboldt Lord-Ellis Road near Blue Lake. Comment
  POM272289  Umbellularia californica Lyman Benson 1929-7-16 1845 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA46914  Umbellularia californica Doris K. Kildale 1925-12-27 1447 Humboldt Kneeland. 762 Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  UC1223044  Uropappus lindleyi Joseph P. Tracy 1947-5-10 17676 Humboldt near Briceland Comment
  HSC89472  Urtica dioica subsp. gracilis P. A. Daly 1986-3-12 95 Humboldt Trinidad Head, along trail 61 Comment
  RSA167409  Urtica dioica subsp. gracilis Joseph P. Tracy 1950-8-8 19276 Humboldt 1 mile west of lower end of Brogham Hole, 'Trinity Summit Trip'. Comment
  UC302988  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt around Humboldt Bay (Northern Coast Ranges, Elk River Valley); Northern Coast Ranges, Elk River Valley 30 Comment
  SDSU3428  Vaccinium ovatum L. N. Harvey 1930-10-27 1236 Humboldt Comment
  UC1173686  Vaccinium ovatum Joseph P. Tracy 1939-5-30 16304 Humboldt Dinsmore's, along Van Duzen River Van Duzen River 731 Comment
  UC154182  Vaccinium ovatum Harley P. Chandler Jun 1901 1397 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley 152 Comment
  UCSB27859  Vaccinium ovatum Phelps, M. 1972-3-19 Humboldt South end of Elk Ridge, approx. 2.5 mi. north of Briceland 457 Comment
  HSC74355  Vaccinium parvifolium Gail Newton 1980-6-17 226 Humboldt Near Onion Mtn. 1341 Comment
  HSC7922  Vaccinium parvifolium J. Pursell 1964-10-11 10113 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  RSA1883  Vaccinium parvifolium C. B. Wolf 1930-10-26 1024 Humboldt Along the Redwood Highway, 3 mi. so. of Del North Co. Line. 152 Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC32645  Vaccinium parvifolium J. Burtt Davy 1899-6-18 5608 Humboldt Bald Mt., near Korbel; North Coast Ranges Comment
  SDSU13780  Vancouveria hexandra D. F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  HSC3377  Vancouveria hexandra E. W. Styskel 1963-5-16 23 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC96678  Vancouveria hexandra Kristina Folland 2001-5-6 22 Humboldt Top of Fickle Hill Rd. Comment
  RSA12551  Vancouveria hexandra C. B. Wolf 1934-7-2 5888 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC1541237  Vancouveria hexandra H. E. and S. T. Parks May, 1930 757 Humboldt in wet woods along the Van Duzen River; along the Van Duzen River 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
  CAS-BOT-BC528851  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) 6 Comment
  CAS-BOT-BC528853  Veratrum californicum Doris K. Kildale 1925-8-16 1179 Humboldt Trinity Summit Elk Horn Prairie, wet meadow 1524 Comment
  HSC57040  Veratrum insolitum Overton, Butler 1979-7-24 9680 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1198210  Veratrum insolitum Joseph P. Tracy 1947-7-5 17820 Humboldt in open prairie Trinity Summit 1524 Comment
  JEPS11185  Verbascum blattaria Lincoln Constance 1934-5-26 658 Humboldt South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC21737  Verbena lasiostachys D. E. Anderson 1963-10-6 2880 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC55335  Veronica americana Terry Griswold, Marvin Butler 1979-7-12 7179 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  HSC28222  Veronica americana John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  CHSC53307  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd and ca 1/4 mile northwest of the boat ramp. 3 Comment
  RSA80042  Veronica scutellata F. W. Peirson 1923-7-11 3838 Humboldt 7 miles N of Arcata. Comment
  UC176113  Veronica scutellata Joseph P. Tracy 1912-7-21 3778 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  JEPS29846  Veronica scutellata Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7836 Humboldt about 1 mi w of Carlotta (or about 0.5 mi e of Hydesville) Comment
  HSC56097  Veronica serpyllifolia subsp. humifusa G. L. Clifton 1979-7-31 11807 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC147901  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1910-4-17 3115 Humboldt Valley of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Elk River 0 Comment
  HSC73534  Vicia americana var. americana Gail Newton 1980-7-14 1496 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1197465  Vicia americana var. americana Joseph P. Tracy 1911-7-1 3277 Humboldt near Hydesville; Northern Coast Region 60 Comment
  RSA168914  Vicia americana var. americana Joseph P. Tracy 1946-6-15 17569 Humboldt Green Point, west of Redwood Creek on Trinity Highway. 457 Comment
  RSA46826  Vicia americana var. americana Doris K. Kildale 1926-3-26 1643 Humboldt Old Fortuna Rd Comment
  HSC100541  Vicia americana var. linearis Carl C. Marshall May 1886 216 Humboldt Everywhere, Humboldt Bay. Comment
  HSC95539  Vicia gigantea Andrea Pickart 2002-5-26 111 Humboldt Lanphere Dunes, along dirt road to Lanphere Dune Office 0 Comment
  UC169307  Vicia hirsuta Joseph P. Tracy 1912-7-7 3738 Humboldt Eureka; Northern Coast Region 0 Comment
  SEINET5078517  Vicia sativa Unknown 2002-8-22 89 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UCR104583  Vicia sativa subsp. nigra A. R. Alexander 1998-4-9 10 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  HSC36502  Viola adunca Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1888 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC91932  Viola adunca E. Mackey 1986-5-13 Humboldt Patrick's Point State Park; Palmer's Point Comment
  HSC71038  Viola glabella Thomas W. Nelson 1977-4-20 3330 Humboldt Along USFS Road 1N15 at summit 915 Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  HSC97729  Viola glabella C. Witte 2007-5-10 22 Humboldt Board Camp. 1/2 miles from National Forest 1, on Forest Service Road 4N38. 1395 Comment
  HSC32079  Viola hallii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC21832  Viola ocellata R. A. Rasp 1964-4-25 40 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  CAS-BOT-BC270151  Viola palustris H. E. Parks; Joseph P. Tracy 1927-4-23 7919 Humboldt Big Lagoon, in bog 3 Comment
  CAS-BOT-BC270153  Viola palustris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  HSC90070  Viola praemorsa subsp. praemorsa C. Baldwin, A. Hiss, P. Reynolds 1990-4-27 56 Humboldt Titlow Rd., 0.5 mi. S of Hwy. 299; 50 yds. W of Titlow Rd. 854 Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  RSA249436  Viola purpurea subsp. integrifolia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5591 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CHSC68507  Viola sempervirens Vernon H. Oswald 1997-4-10 8326 Humboldt Elk Head, north end of Trinidad State Beach. Alonf the trail between the parking area and the bluffs overlooking the ocean. 30 Comment
  HSC89434  Viola sempervirens P. A. Daly 1984-5-8 10 Humboldt Trinidad Head 61 Comment
  UC1222511  Viola sempervirens Joseph P. Tracy 1951-6-14 19420 Humboldt Snow Camp 1402 Comment
  UC164805  Viola sempervirens Joseph P. Tracy 1904-4-3 2006 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC164816  Viola sempervirens Joseph P. Tracy 1901-1-1 978 Humboldt immediate vicintiy of Eureka 0 Comment
  UC66211  Viola sempervirens Harley P. Chandler June, 1901 1292 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC34806  Viola sempervirens Lon Hall 1975-3-27 301 Humboldt Near Shelter Cove, above Bear Creek 366 Comment
  JEPS50475  Viola sheltonii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8910 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC97572  Viola sheltonii C. Witte 2007-5-18 34 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  RSA80504  Viola sheltonii Milo S. Baker 1946-6-16 11510 Humboldt South Fork Mt. 1677 Comment
  UC1103559  Viola sheltonii Joseph P. Tracy 1933-6-13 12586 Humboldt near summit of Hoopa Mountain (on road from Hoopa westward to Bair's) 1127 Comment
  HSC24254  Vulpia bromoides D. E. Anderson 1970-5-21 5078 Humboldt Scotia bluffs. Comment
  RSA123466  Vulpia bromoides H. S. Yates 1936-6-16 5663 Humboldt 1 miles southwest of Samoa. 6 Comment
  UC1198903  Whipplea modesta Joseph P. Tracy 1942-5-16 17347 Humboldt 1 mi s Garberville (along river) 152 Comment
  HSC79482  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt N fork of Dead Man's Gulch 84 Comment
  UCD136054  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC382929  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC71670  Wyethia angustifolia M. A. Baker 1980-6-26 2382 Humboldt Near Sims Creek 610 Comment
  HSC98077  Wyethia angustifolia Cara Witte 2007-7-11 485 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  HSC100451  Wyethia angustifolia Carl C. Marshall Jul 1886 261 Humboldt Coast Range. Comment
  SBBG36549  Wyethia angustifolia H. and M. Dearing 1939-6-23 3695 Humboldt 20 mi E of Arcata Comment
  UC302180  Wyethia longicaulis Joseph P. Tracy 1926-5-30 7517 Humboldt near Horse Mt. Pass (on Trinity Highway); Northern Coast Ranges, Horse Mountain 883 Comment
  HSC8421  Zeltnera muehlenbergii William J. Ferlatte, B. D. Rogers 1966-8-15 3130 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  RSA168946  Zigadenus micranthus Joseph P. Tracy 1950-6-25 18882 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment



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