Search Results — 2000 specimen records retrieved (1384 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC73545  Abies concolor Gail Newton 1980-7-14 1470 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC73937  Abies concolor Gail Newton 1980-6-24 593 Humboldt Near Ladder Rock 1570 Comment
  HSC76295  Abies concolor Denis Kearns 1981-7-24 438 Humboldt Near Whiteys Peak. 1768 Comment
  CAS-BOT-BC78052  Abies grandis Doris K. Kildale 1927-2-20 2964 Humboldt Korbel Hill at Angel's Ranch 304 Comment
  HSC45921  Abies grandis Jerome Peterson 1978-5-28 28 Humboldt HSC Campus, NW of Founders Hall Comment
  UC213003  Abies grandis Joseph P. Tracy 1919-4-6 5125 Humboldt Humboldt Hill Northern Coast Region, Humboldt Bay, Humboldt Hill 152 Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC62997  Abronia latifolia David Wheeler 1979-5-10 103 Humboldt Mad River Beach County Park .25 mi. NW of parking lot Comment
  UCR122367  Abronia latifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7022 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC383849  Abronia latifolia Doris K. Kildale 1926-6-18 2406 Humboldt Golf Bluffs Comment
  HSC90244  Abronia latifolia Jean Hanson 1980-5-24 56 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  RSA0025086  Abronia latifolia T. S. Elias, Barbara A. Elias 1987-8-24 10621 Humboldt Prairie Creek Redwoods State Park, Gold Bluffs Beach. Comment
  RSA0025094  Abronia latifolia Robert F. Thorne, P. C. Everett 1965-8-5 35170 Humboldt Samoa Dunes. 3 Comment
  UC55523  Abronia latifolia P. E. Goddard 1901-8-6 180 Humboldt Regna Beach Comment
  CAS-BOT-BC233751  Abronia umbellata Doris K. Kildale 1926-6-18 2401 Humboldt Gold Bluffs Beach Comment
  SEINET8215832  Abronia umbellata H. E. Parks 1941-1 242112 Humboldt Little River. Comment
  HSC75231  Abronia umbellata var. breviflora D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC330549  Acer circinatum Harley P. Chandler 1901-6-1 1283 Humboldt North Coast Ranges. Hupa Indian Reservation 1097 Comment
  CAS-BOT-BC331583  Acer macrophyllum Doris K. Kildale 1927-5-7 3112 Humboldt Elk Ridge Comment
  HSC31652  Acer macrophyllum Timothy B. Devine 1974-5-4 318 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  UC165821  Acer macrophyllum J. P. Tracy 1906-4-15 2403 Humboldt moist bottom lands on Mad River near Blue Lake; on Mad River near Blue Lake 30 Comment
  CAS-BOT-BC331592  Acer macrophyllum G. A. Coleman 1901-7-16 s.n. Humboldt Near Barberville Comment
  HSC4549  Achillea millefolium D. B. Bader 1963-2-17 27 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  HSC58134  Achillea millefolium Muth 1979-8-1 12141 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC58151  Achillea millefolium G. L. Clifton, Griswold 1979-8-2 12203 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UCD128286  Achillea millefolium Linda M. Barker 1976-6-1 1541 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA254748  Achillea millefolium var. arenicola Thomas W. Nelson 1971-11-11 597 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  UC203890  Achlys californica Joseph P. Tracy 1918-5-28 4951 Humboldt High Prairie on Bald Mt. Northern Coast Ranges, Bald Mt. 1066 Comment
  HSC42004  Achlys triphylla Tom Duebendorfer 1977-5-15 51 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC57026  Achlys triphylla Overton, Butler 1979-7-24 9647 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS52978  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-29 16446 Humboldt Van Duzen R., Grizzly Flat Comment
  CAS-BOT-BC210654  Achnatherum lemmonii Joseph P. Tracy 1933-6-13 12597 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  SEINET200949 Image available Achnatherum lemmonii J. P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie 762 Comment
  UC552773  Achnatherum lemmonii H. E. Parks and Joseph P. Tracy 1934-6-27 11053 Humboldt Grouse Mt. 1432 Comment
  UC60151  Achnatherum lemmonii J. Burtt Davy 1899-6-8 5348 Humboldt Bell Springs North Coast Ranges, Bell Springs Comment
  UC70821  Achnatherum lemmonii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5680 Humboldt Hoopa Mt. Comment
  UCD50521  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt At Board Camp Mountain, north side, at extreme head of Redwood Creek Comment
  CAS-BOT-BC216454  Achnatherum occidentale subsp. californicum H. E. Parks; Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  UCD104078  Acmispon brachycarpus H. E. Parks 1941-8-1 24183 Humboldt Little River State Park. Comment
  POM312840  Acorus calamus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1242 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  UC76581  Adenocaulon bicolor Mrs. M. H. Manning 1901-1-1 Humboldt near Hupa Comment
  CAS-BOT-BC62291  Adiantum aleuticum Carl B. Wolf 1927-8-28 1170 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC62293  Adiantum aleuticum Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  UCD137170  Adiantum aleuticum Lincoln Constance 1934-6-1 776 Humboldt Bull Creek Region, South Fork Eel River. Comment
  CAS-BOT-BC65627  Adiantum jordanii Doris K. Kildale 1927-3-16 2995 Humboldt Phillipsville, South Fork of Eel River Comment
  POM208978  Adiantum jordanii Lincoln Constance 1934-6-4 823 Humboldt rocky bluff above Dyerville-Bull Creek road, in Border Forest, Humbolt Redwood Park. 91 Comment
  HSC35781  Agastache urticifolia Thomas W. Nelson, B. Reinhardt 1975-7-30 2096 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1222885  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt at n end of town Garberville Comment
  UC1222929  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt 1 mi n, road crosses sides of the Friday Ridge Friday's Camp; Grouse Mountain Comment
  UC1222938  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi w, to Box Camp w slope of Trinity Summit Mud Springs; Trinity Summit Comment
  HSC99060  Agoseris heterophylla Cara Witte 2007-5-23 89 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC302295  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1926-6-27 7688 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  UC119489  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1934-7-17 13417 Humboldt on open grasshills Grouse Mountain 1524 Comment
  UC165751  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1908-6 2735 Humboldt opposite, in valley of Van Duzen River Buck Mountain; Northern Coast Ranges, Van Duzen River 762 Comment
  HSC32098  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5703 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC187295  Agrostis alba J. P. Tracy 1901-7-29 1227 Humboldt moist hillside immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC127521  Agrostis capillaris Stuart K. Harris 1959-7-10 19935 Humboldt Fortuna. Grounds Redwood Hospital. Comment
  CAS-BOT-BC127280  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad. 60 Comment
  RSA21206  Agrostis exarata C. B. Wolf 1937-8-10 9095 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC1103372  Agrostis exarata Joseph P. Tracy 1902-6-20 1754 1/2 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC1103386  Agrostis exarata Joseph P. Tracy 1934-7-21 13478 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC191415  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Eureka Northern Coast Region 0 Comment
  UC526891  Agrostis exarata Joseph P. Tracy 1932-6-14 10145 Humboldt mountainside w mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  UC1145076  Agrostis hallii Joseph P. Tracy 1947-7-3 17762 Humboldt Trinidad 3 Comment
  UC187117  Agrostis hallii Joseph P. Tracy 1908-6 2882 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC526881  Agrostis hallii Joseph P. Tracy 1925-8-22 7237 Humboldt North Fork of Eel River, around Humboldt Bay Northern Coast Region, Humboldt Bay 30 Comment
  SBBG53087  Agrostis longiligula R. N. Philbrick, J. R. Haller 1976-6-25 7 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  UC1103522  Agrostis pallens Joseph P. Tracy 1932-7-14 10551 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  RSA44451  Agrostis stolonifera Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  UC187294  Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka Northern Coast Region 0 Comment
  HSC58792  Agrostis thurberiana Overton, Butler 1979-7-31 11457 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC138572  Agrostis variabilis Joseph P. Tracy 1930-7-16 8948 Humboldt Northern Coast Ranges. South Fork Mountain. Along summit near Blake Lookout. 1737 Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UC1103297  Aira caryophyllea Joseph P. Tracy 1923-6-24 6359 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1103307  Aira caryophyllea Joseph P. Tracy 1932-5-1 9864 Humboldt Redway North Coast Ranges 182 Comment
  UCD55705  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  HSC8869  Aira praecox J. P. Tracy 1932-5-16 10103 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  RSA183573  Aira praecox R. I. Bonn 1965-5-7 22 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  HSC37500  Alisma triviale J. D. Ackerman 1975-8-2 611 Humboldt Intersection of Indianola Cutoff and Hwy. 101, ca. half-way between Eureka and Arcata. Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC460755  Allium amplectens Alice Eastwood; John Thomas Howell 1937-6-23 4832 Humboldt Near Yager Comment
  POM228735  Allium amplectens C. C. Harris, S. K. Harris 1936-6-24 645 Humboldt At point where the road from Bridgeville to Dunsmore crosses the Little Van Duzen River. 710 Comment
  HSC39431  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2875 Humboldt E of Goat Hill lookout 1666 Comment
  HSC73850  Allium falcifolium M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat 1554 Comment
  CDA43227  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy 101 ca. 1.0 miles west of Orick. 0 Comment
  CDA2736  Allium triquetrum E. C. Whitney 1965-4-19 Humboldt Lamphire Road & nearby field, Arcata Bottoms. 0 Comment
  UC176168  Allium unifolium Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3607 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC97998  Allium validum Cara Witte 2007-7-11 500 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC100705  Allocarya plebeia Carl C. Marshall Jun 1886 178 Humboldt Near Scottsville. Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  HSC40988  Alnus rhombifolia Thomas W. Nelson, Jane P. Nelson 1977-6-19 3518 Humboldt S of Alder Spring 1463 Comment
  RSA46862  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Dusen, near bridge on Bridgeville, Low Gap Road. 640 Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  HSC73642  Alnus viridis subsp. sinuata M. A. Baker 1980-7-23 3193 Humboldt Near Orleans Mtn. 1859 Comment
  RSA129283  Alopecurus geniculatus H. L. Person 1932-5-11 19411 Humboldt Near Arcata 0 Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  CAS-BOT-BC13700  Ambrosia chamissonis W. S. Cooper 1925-7-28 102 Humboldt Cape Mendocino Comment
  SEINET3132553  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt Arcata, W.M. Lanphere farm, Samoa Peninsula. Comment
  CAS-BOT-BC142884  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-7-17 3756 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC142885  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-4-11 1754 Humboldt Strong's Station on the Van Duzen River Comment
  CAS-BOT-BC142891  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-5-2 2953 Humboldt Near Eureka 152 Comment
  HSC24391  Amelanchier pallida J. O. Sawyer 1970-6-24 2218 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1222322  Amelanchier utahensis Joseph P. Tracy 1951-5-6 19395 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  UCD55994  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1239646  Amsinckia lunaris Joseph P. Tracy 1930-5-25 8724 Humboldt near Bridgeville; Northern Coast Ranges 152 Comment
  HSC37912  Anaphalis margaritacea Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  UC582520  Anaphalis margaritacea Joseph P. Tracy 1934-8-31 13649 Humboldt Kneeland Prairie 762 Comment
  HSC4628  Anaphalis margaritacea H. E. Parks, S. T. Parks Aug 1943 24237 Humboldt Along Hwy, Stone Lagoon Comment
  RSA21448  Anaphalis margaritacea C. B. Wolf 1937-8-13 9212 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  CAS-BOT-BC391780  Anemone deltoidea V. Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC391775  Anemone deltoidea L. R. Abrams; G. T. Benson 1924-5-18 10736 Humboldt Bull Creek Redwood Grove Comment
  HSC55623  Angelica arguta Overton, Butler 1979-7-24 9570 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC642263  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  CAS-BOT-BC221418  Angelica hendersonii L. R. Abrams 1916-7-18 6138 Humboldt At Trinidad Comment
  JEPS14108  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  RSA21186  Angelica hendersonii C. B. Wolf 1937-8-11 9145 Humboldt 1/2 mile east of Alton. 21 Comment
  UC1197332  Angelica lucida Joseph P. Tracy 1941-8-3 16977 Humboldt at w foot of Table Bluff Table Bluff 6 Comment
  UC642266  Angelica tomentosa Joseph P. Tracy 1939-8-16 16410 Humboldt Horse Mountain 1432 Comment
  UCR270360  Angelica tomentosa John F. Emmel 2003-7-30 1801 Humboldt North Coast, Bald Hills Road, 21.5 road mi southeast of Hwy 101, near south end of French Camp Ridge 915 Comment
  CAS-BOT-BC289127  Anthoxanthum occidentale Mabel Wiesendanger 1928-4-7 907 Humboldt Lane's Redwood Flat, Redwood Highway Comment
  HSC10098  Anthoxanthum occidentale D. E. Anderson 1962-5-10 2205 Humboldt Lanphere Ranch Comment
  HSC10103  Anthoxanthum occidentale E. W. Styskel 1964-3-7 53 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  HSC28090  Anthoxanthum occidentale J. D. Ackerman, A. M. Montalvo 1973-3-27 37 Humboldt 1.5 mi. N of Manila Comment
  JEPS71148  Anthoxanthum odoratum A. L. Hormay 1932-5-11 48 Humboldt Arcata Comment
  UC1103320  Anthoxanthum odoratum Joseph P. Tracy 1926-4-17 7412 Humboldt Northern Coast Ranges, Eurek Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC905641  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad Comment
  HSC58041  Apocynum androsaemifolium Gilbert Muth 1979-8-1 11887 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC58102  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-8-1 12033 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1197616  Apocynum androsaemifolium Joseph P. Tracy 1911-7-11 3518 Humboldt ridge next s. of Hoopa Valley (w. side of Trinity R. near Willow Creek); Northern Coast Ranges, Trinity R. 304 Comment
  CAS-BOT-BC392162  Aquilegia formosa M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi. N. of Garberville Comment
  HSC102583  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1570 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC31555  Aquilegia formosa Glenn McGourty 1974-5-11 45 Humboldt Along Maple Creek Rd. Comment
  SDSU9935  Aquilegia formosa D. F. Howe 1962-5-21 3299 Humboldt 16.4 miles north of Garberville on #101. 61 Comment
  HSC100611  Aquilegia truncata Carl C. Marshall Jun 1887 Humboldt Everywhere. Comment
  HSC98619  Arabis glabra var. glabra Cara Witte 2007-5-31 154 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC57407  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-26 10162 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC26782  Arabis holboellii var. retrofracta Thomas W. Nelson 1971-5-21 459 Humboldt Mad River bar, N of Dinsmore Comment
  HSC57454  Arabis lyallii G. L. Clifton, Terry Griswold 1979-7-26 10279 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UCD128220  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  HSC54575  Arbutus menziesii Overton, Butler 1979-7-24 9610 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC71803  Arceuthobium campylopodum M. A. Baker 1980-6-26 2381 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC102206  Arctium minus L. R. Abrams 1927-8-30 12050 Humboldt Scotia Comment
  UC154197  Arctostaphylos Harley P. Chandler June 1901 1291 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  CAS-BOT-BC23742  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23759  Arctostaphylos columbiana Alice Eastwood 1907-4-22 41 Humboldt Near Trinidad Comment
  CAS-BOT-BC23761  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad Comment
  CAS-BOT-BC23763  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CHSC63763  Arctostaphylos columbiana Walter Knight; Irja Knight 1988-9-5 6363 Humboldt Bald Hill Road about 21.5 miles from U. S. 101 en route to Hoopa. 929 Comment
  HSC33254  Arctostaphylos columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just S of its junction with Maple Creek Rd. Losey property. 671 Comment
  JEPS38611  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon 15 Comment
  UC1182191  Arctostaphylos columbiana J. A. Delapp 1959-11-19 54 Humboldt 4 mi sse Orick; Quad 10D1 228 Comment
  UC1198661  Arctostaphylos columbiana Joseph P. Tracy 1928-3-4 8403 Humboldt Miranda South Fork of Eel River 121 Comment
  UC549499  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  UCD50673  Arctostaphylos columbiana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa; Big Hill Lookout Road. 1230 Comment
  RSA12449  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-6-30 5844 Humboldt 5 1/2 mi. from Shelter Cove on rd. to Briceland. 152 Comment
  RSA15551  Arctostaphylos columbiana var. columbiana C. B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  RSA81544  Arctostaphylos columbiana var. tracyi E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-11 18626 Humboldt 0.1 mi. N of Humbolt-Mendecino Co. line, Hwy 101. 168 Comment
  HSC100252  Arctostaphylos densiflora J. P. Smith, & J. O. Sawyer 2010-5-2 12809 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC54574  Arctostaphylos glandulosa Overton, Butler 1979-7-24 9608 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  RSA633016  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27813 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24362  Arctostaphylos manzanita subsp. manzanita M. S. Jussel 1931-5-3 s.n. Humboldt Laytonville. Comment
  JEPS38924  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198679  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-7-11 15417 Humboldt vicinity of Garberville 121 Comment
  CAS-BOT-BC40028  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40071  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2587 Humboldt On road between Orick & Martin's Ferry. Comment
  CAS-BOT-BC40073  Arctostaphylos nevadensis subsp. knightii Stephen W. Edwards 1985-10-28 85 -52 Humboldt Horse Mt., due east of Arcata 20 miles airline. Comment
  SEINET11988226  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4325 Humboldt Tildel Regional Park Botanic Garden, Berkeley, orig. from French Camp Comment
  RSA60536  Arctostaphylos patula John H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. 1677 Comment
  HSC27879  Arctostaphylos uva-ursi Clifton Raymond Chesbrough 1973-6-19 77 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC7732  Arctostaphylos uva-ursi J. R. Woodside 1963-3-23 37 Humboldt 1 1/4 mi. N of Fairhaven Comment
  POM212078  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  UC154160  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1206 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD52154  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1149 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  UCD52155  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1146 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA183565  Arctostaphylos uva-ursi var. coactilis R. I. Bonn 1965-4-3 13 Humboldt Four miles west of Arcata on Lanphere Rd. Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  UC902046  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1949-8-4 18419 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC94121  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Union St. at 7th St. South of Phillips House 24 Comment
  RSA518163  Arctotheca calendula G. D. Barbe, T. C. Fuller 1989-6-8 4321 Humboldt 3.4 miles west of Main Street, on Centerville Beach road, Ferndale. Comment
  HSC63286  Arnica discoidea M. A. Baker 1979-6-29 955 Humboldt Hopkin's Creek. 760 Comment
  HSC49998  Arnica discoidea M. A. Baker 1979-6-7 790 Humboldt W slope of Snow Mtn. 762 Comment
  JEPS20976  Arnica latifolia Mrs. L. B. Kildale 1926-4-25 Humboldt Sugar Bowl Mt. Trinity River, Sugar Bowl Mt. 457 Comment
  HSC99892  Arrhenatherum elatius J. P. Smith 1994-6-12 11197 Humboldt Along West End Road, Arcata 12 Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  UC665564  Artemisia suksdorfii H. E. Parks 1940-5-1 24178 Humboldt Little River Comment
  RSA40781  Artemisia suksdorfii C. B. Wolf 1944-10-26 11470 Humboldt Redwood Highway at Junction of road to Crannell 15 Comment
  SDSU6205  Artemisia suksdorfii D. F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on #36. 152 Comment
  UC154231  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC64216  Asarum caudatum J. O. Sawyer, M. A. Ericksen 1979-6-23 3385 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC99362  Asarum caudatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 11 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103506  Asarum caudatum Joseph P. Tracy 1949-6-6 18304 Humboldt Happy Camp Mountain (in Trinity Summit Range, northeast of Hawkins Bar) 1280 Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC99398  Asarum hartwegii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 47 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCR111208  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hwy 96, 1.9 mi. north of Willow Creek. 162 Comment
  RSA46484  Asclepias cordifolia Doris K. Kildale 1925-7-2 963 Humboldt Bug creek 915 Comment
  UC1173689  Asclepias fascicularis Joseph P. Tracy 1939-7-16 16349 Humboldt Garberville 152 Comment
  HSC63192  Asclepias speciosa M. A. Baker 1979-7-6 1006 Humboldt Along E bank of Klamath River Comment
  HSC100389  Aspidium rigidum var. argutum Carl C. Marshall Jun 1886 286 Humboldt Hoopa. Comment
  CAS-BOT-BC65939  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC97473  Aspidotis densa Cara Witte 2007-5-23 91 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  RSA18141  Aster chilensis C. B. Wolf 1927-8-22 808 Humboldt 1 mile south of Orick. Comment
  CAS-BOT-BC27579  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Foster & Pierce Ranch 762 Comment
  UC502992 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; near Bear Buttes, Humboldt Co. 762 Comment
  UC303178  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1925-7-18 7217 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  CAS-BOT-BC193134  Astragalus rattanii var. rattanii Volney Rattan 1883-6-13 s.n. Humboldt Bug Creek, a tributary of Mad Riv. Comment
  JEPS22949  Astragalus rattanii var. rattanii Volney Rattan 1884-1 Humboldt Eel River Comment
  RSA138295  Astragalus umbraticus Volney Rattan 1878-1 1878 Humboldt Humboldt. Comment
  CAS-BOT-BC200852  Astragalus umbraticus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  RSA246930  Athyrium filix-femina subsp. cyclosorum R. F. Thorne, Percy C. Everett 1965-8-9 35292 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC69523  Athyrium filix-femina subsp. cyclosorum Doris K Niles 1948-4-17 3 Humboldt Peugh Road Creek, 1 mi. e. of Loleta. Comment
  HSC55132  Athyrium filix-femina var. cyclosorum G. L. Clifton, Terry Griswold 1979-8-1 11964 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC76301  Athyrium filix-femina var. cyclosorum Teresa Prendusi 1981-7-9 176 Humboldt Near Cedar Camp. 1268 Comment
  SD90176  Athyrium filix-femina var. cyclosorum Benjamin C. Stone 1952-6-25 128 Humboldt 15 miles south of Klamath on Highway 101 14 Comment
  UC1198292  Athysanus pusillus Joseph P. Tracy 1922-4-30 6016 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC69756  Atriplex prostrata Thomas W. Nelson 1977-9-22 3751 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  CAS-BOT-BC66217  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  JEPS40685  Baccharis pilularis W. L. Jepson Sep 19 1924-Sep 21 1924 10655 Humboldt Garberville Comment
  CHSC19741  Baccharis pilularis subsp. consanguinea Gary J. Stebbins 1970-2-2 7 Humboldt Along U. S. 101 1.5 miles north of Patricks Point State Park. 83 Comment
  HSC37823  Baccharis pilularis subsp. consanguinea Thomas W. Nelson, Jane P. Nelson 1976-2-21 2252 Humboldt Tish-Tang campground Comment
  HSC89419  Baccharis pilularis subsp. pilularis P. A. Daly 1986-2-28 58 Humboldt Trinidad Head 61 Comment
  UC552310  Balsamorhiza deltoidea Joseph P. Tracy 1935-6-16 11282 Humboldt lower nw slope Buck Mountain 792 Comment
  HSC82029  Bellardia trixago Thomas W. Nelson, Jane P. Nelson 1980-5-25 5344 Humboldt Along Alderpoint-Blocksburg Rd., just SE of bridge over N Dobbyn Creek 152 Comment
  HSC5190  Bellis perennis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  SEINET5707799 Image available Bellis perennis Suzanne E. May 1967-1 34 Humboldt On State Highway 36, 1 mile west of Bridgeville.; Bridgeville 183 Comment
  HSC53890  Bensoniella oregona Griswold, Butler 1979-7-11 6384 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  RSA167308  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
  CAS-BOT-BC75676  Berberis nervosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC57157  Berberis nervosa Overton, Butler 1979-7-26 9956 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC75808  Berberis pinnata Doris K. Kildale; L. B. Kildale 1930-5-12 9560 Humboldt McClellan Hill near Bridgeville. 609 Comment
  HSC35713  Berberis pinnata Thomas W. Nelson 1975-10-12 2237 Humboldt McKeown Ranch, N of Dinsmore Comment
  BLMAR651  Berberis pinnata subsp. pinnata Jennifer Wheeler 2012-5-9 651 Humboldt Lacks Creek, Beaver Ridge Road 890 Comment
  OBI33907  Berberis pinnata subsp. pinnata David J. Keil 1983-7-2 17320 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  UC1222968  Bidens frondosa Joseph P. Tracy 1950-8-20 19318 Humboldt 2 mi sw of Orleans Comment
  HSC102084  Bistorta bistortoides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 988 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC64434  Bistorta bistortoides J. P. Smith, Steve Selva 1970-6-30 4119 Humboldt Comment
  CAS-BOT-BC66272  Blechnum spicant W. C. Blasdale 1896-6-1 s.n. Humboldt Eureka Comment
  SFV12198  Blennosperma nanum R. Gankin, W. R. Hildreth 1966-3-15 700 Humboldt Serpentine slopes of Klamath River Canyon. State Highway 96, 4.6 miles north of Hoopa. Comment
  HSC31637  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  UC1196126  Boschniakia strobilacea Joseph P. Tracy 1939-4-29 16251 Humboldt Klamath River near Slate Creek. Comment
  UC197910  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka 0 Comment
  CAS-BOT-BC420263  Boykinia occidentalis Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC14479  Boykinia occidentalis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  SEINET12012990  Brassica juncea M. A. Lane 1990-3-20 3296 Humboldt below US 101 & above Benbow Drive to Benbow Lake State Recreation Area Comment
  CAS-BOT-BC36698  Brassica rapa Roxana S. Ferris 1937-8-21 9391 Humboldt Face of Cliff above Shelter Cove. Comment
  HSC79522  Brassica rapa Kenneth Clark 1980-3-1 515 Humboldt Lower alluvial terrace, Dead Man's Gulch 15 Comment
  CAS-BOT-BC106292  Brickellia californica Doris K. Kildale 1926-8-8 2480 Humboldt Dyerville Bridge 45 Comment
  LA202097  Brickellia californica S. K. Harris; C. M. Wilder 1938-9-8 877 Humboldt bars on Van Duzen River, below Blue Slide Comment
  UC581795  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt Camp Grant, along Eel River, 2-5 mi e of the South Fork Eel River 45 Comment
  CAS-BOT-BC127682  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain, in open forest of Jeffrey Pine, in serpentine belt 1432 Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  JEPS7739  Brodiaea elegans subsp. elegans W. L. Jepson 1932-7-24 16385 Humboldt Mail Ridge Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  UC1442888  Brodiaea elegans subsp. elegans Theodore F. Niehaus 1965-6-8 566 Humboldt along Glory road 1.7 mi sw Alderpoint Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC78981  Brodiaea terrestris subsp. terrestris L. P. Janeway 1984-5-16 794 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. 0.25 mi. N of the boat ramp 3 Comment
  UCD125575  Bromus Laurel Goldsmith 2012-11-1 s.n. Humboldt Near Arcata. Humboldt Bay National Wildlife Refuge. Lanphere Dunes Unit, just outside main office. 6800 Lanphere Road. 5 Comment
  SEINET201049 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain 1067 Comment
  UCD58456  Bromus commutatus A. H. Murphy 1951-6-13 62 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  BLMAR31  Bromus diandrus Brad Barr June, 1982 31 Humboldt King range, on beach Comment
  HSC79491  Bromus diandrus Kenneth Clark 1980-4-18 575 Humboldt 350 yds. S of Deadman's Gulch 8 Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  HSC9243  Bromus hordeaceus B. D. Rogers 1964-4-4 21 Humboldt Arcata, HSU campus Comment
  UC552776  Bromus orcuttianus H. E. Parks and Joseph P. Tracy 1934-6-27 11079 Humboldt Grouse Mountain 1432 Comment
  SEINET200935 Image available Bromus orcuttianus var. orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt On Friday Ridge, at Friday's Camp. 1219 Comment
  UC1145181  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge 944 Comment
  CAS-BOT-BC185522  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UCD60237  Bromus vulgaris P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek, to Arcata. Comment
  SEINET10524083  Bromus vulgaris A. Arthur Heller 1923-7-10 Heller 13789 Humboldt Open places in the redwood forest between Scotia and Pepperwood. Comment
  UC1199255  Cacaliopsis nardosmia Joseph P. Tracy 1908-6 2822 Humboldt nw slope of Buck Mountain Buck Mountain 1219 Comment
  HSC69642  Cakile maritima R. Kalal 1980-6-3 14 Humboldt 1 mi. S of Samoa 6 Comment
  UCD57524  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  UC1198380  Calandrinia ciliata Joseph P. Tracy 1933-5-28 12405 Humboldt Ocean View Cemetary Eureka 15 Comment
  UC153940  Callitriche marginata J. P. Tracy 1910-5-22 3137 Humboldt Immediate Vicinity of Eureka 0 Comment
  UC668185  Callitriche trochlearis Joseph P. Tracy 1936-6-17 14952 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  HSC12858  Callitropsis nootkatensis M. Athey, D. La Conte 1970-11-28 4 Humboldt HSU campus Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC1198260  Calocedrus decurrens Joseph P. Tracy 1912-8-1 3954 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC488451  Calochortus amabilis M. S. Jussel 1931-5-2 n.s. Humboldt Sylvandale, 8 miles N. of Barbarville Comment
  HSC96227  Calochortus tolmiei M. Lindquist, C. Riley 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  JEPS17823  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Philipsville Phillipsville 121 Comment
  CAS-BOT-BC494362  Calochortus tolmiei Volney Rattan 1879-6-7 13 Humboldt Long Prairie Comment
  SEINET3992100  Calochortus tolmiei Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka, Quercus Garryana forest 762 Comment
  HSC16571  Calypso bulbosa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  UC1196472  Calypso bulbosa Joseph P. Tracy 1923-4-15 6192 1/2 Humboldt Northern Coast Ranges, Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC16566  Calypso bulbosa J. F. Knezevich 1968-4-20 426 Humboldt E of Korbel on Bald Mtn. Comment
  SEINET12076826  Calypso bulbosa Unknown 1977-1 Humboldt Comment
  HSC101987  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 886 Humboldt Patterson Meadows 1566 Comment
  UC1198374  Calyptridium monospermum Joseph P. Tracy 1919-9-18 5223 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1889 Comment
  HSC24381  Calystegia occidentalis subsp. occidentalis J. O. Sawyer 1970-6-24 2244 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  RSA119358  Calystegia occidentalis subsp. occidentalis S. S. Tillett 1956-7-6 625 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  SEINET3992218  Camassia leichtlinii Unknown 1942-5-16 17331 Humboldt Redway (near Garberville) 152 Comment
  HSC26875  Camissonia cheiranthifolia Clifton Raymond Chesbrough 1973-6-19 79 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC59672  Camissonia cheiranthifolia George Kirn 1977-10-14 Humboldt 1/2 mi. NW of Samoa Comment
  NY679562  Camissonia cheiranthifolia subsp. cheiranthifolia H. H. Smith 1911-6-17 3853 Humboldt Vances Samoa. Comment
  RSA245215  Camissonia cheiranthifolia subsp. cheiranthifolia T. M. Mingo 1965-05 s.n. Humboldt Clam Beach Comment
  UC602536  Campanula prenanthoides Joseph P. Tracy 1927-8-14 8330 Humboldt Big Lagoon 121 Comment
  SEINET10462969  Campanula prenanthoides Shields SHIELDS s.n. Humboldt 3 miles northwest of Weott Comment
  SEINET10972391  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt Orleans Mountain Trail 1219 Comment
  UC602533  Campanula prenanthoides Joseph P. Tracy 1933-7-26 12927 Humboldt Grouse Creek Basin 762 Comment
  SEINET10463418  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt NR SNOW CAMP MTN, IAQUA BUTTES QUAD. NR WILLOW CR. EVERGREEN CONIFER FOREST, MEADOW, 4331 Comment
  UC602559  Campanula scouleri Joseph P. Tracy 1926-6-27 7691 Humboldt Horse Mountain 1219 Comment
  SEINET10463753  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 miles from Bald Mountain on road to Korbel 762 Comment
  SEINET10463763  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UC1326259  Campanula scouleri Milo S. Baker 1947-8-10 11901 Humboldt 15 mi ne Hoopa (near end of forest road) 1371 Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  UC492256  Cardamine angulata Joseph P. Tracy 1928-4-29 8425 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC38209  Cardamine breweri Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  CAS-BOT-BC37251  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt Northern Coast Region. Region about Humboldt Bay. South slope of Humboldt Hill. 152 Comment
  CAS-BOT-BC37420  Cardamine californica LeRoy Ellsworth Detling 1935-4-21 1645 Humboldt Summit of Bear Creek Ridge, Cape Mendocino. Comment
  HSC57312  Cardamine californica Terry Griswold, Marvin Butler 1979-7-10 6318 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA0034559  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  RSA442190  Cardamine oligosperma M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale. Comment
  HSC37574  Cardionema ramosissimum J. D. Ackerman 1975-6-10 458 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC5227  Carduus tenuiflorus W. D. Stevens 1967-7-22 56 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  UC562652  Carex abrupta Joseph P. Tracy 1932-7-14 10546 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC96930  Carex abrupta E. Kimbrough, W. Meier 2007-6-13 10 Humboldt Grouse Mountain, 1 mi. E of NF1 on FS 5N04 1524 Comment
  HSC76378  Carex aquatilis var. dives L. P. Janeway 1982-8-7 117 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  CAS-BOT-BC18010  Carex arcta Joseph Prince Tracy 1937-8-12 15645 Humboldt Snow Camp. 1402 Comment
  UC1103083  Carex athrostachya Joseph P. Tracy 1933-7-25 12844 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC19091  Carex aurea Joseph Prince Tracy; H. E. Parks 1931-5-9 9401 Humboldt Northern Coast Region. Vicinity of Trinidad. At Bishop Pine Lodge. 60 Comment
  RSA244324  Carex barbarae Larry E. DeBuhr 1973-4-23 989 Humboldt Richardson Grove Redwood State Park. Comment
  HSC75485  Carex bolanderi J. O. Sawyer 1980-7-18 3604 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET200965  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Northern Coast Ranges Bald Mountain between High Prairie and Snow Camp. 1067 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
  SEINET7552610 Image available Carex bolanderi David Castaner 1989-6-19 10248 b Humboldt Fern Canyon. Comment
  UC1598405  Carex buxbaumii Joy Mastrogiuseppe 1987-6-4 4571 Humboldt in middle bog Big Lagoon Sphagnum bog Comment
  CAS-BOT-BC34276  Carex concinnoides Joseph Prince Tracy 1927-6-19 8190 Humboldt Northern Coast Range. Patrick's Point, in fern covered prairies on coast terraces. 60 Comment
  CAS-BOT-BC34379  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  RSA296773  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1103122  Carex densa Joseph P. Tracy 1937-5-31 15325 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC194804  Carex densa Joseph P. Tracy 1913-6-20 4231 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC1103106  Carex deweyana subsp. leptopoda Joseph P. Tracy 1904-7-17 2123 Humboldt Hydesville 60 Comment
  CAS-BOT-BC20079  Carex echinata Joseph Prince Tracy 1933-7-25 12845 Humboldt Northern Coast Ranges. Grouse Mountain. 1524 Comment
  UC562273  Carex echinata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8986 Humboldt in meadow at McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM160306  Carex echinata subsp. echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain 1463 Comment
  CAS-BOT-BC20014  Carex feta Joseph Prince Tracy 1928-6-17 8451 Humboldt Trinity RIver Valley, at Willow Creek. 152 Comment
  UC194817  Carex feta Joseph P. Tracy 1913-6-23 4281 Humboldt opposite Buck Mountain (near pond at summit of ridge between Van Duzen and Mad River); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  CAS-BOT-BC20869  Carex globosa Joseph Prince Tracy 1932-4-3 9791 Humboldt North Coast Ranges. Englewood. 91 Comment
  CAS-BOT-BC20874  Carex globosa Joseph Prince Tracy 1932-4-3 9791 Humboldt North Coast Ranges. Englewood. 91 Comment
  CAS-BOT-BC146591  Carex gynodynama H. D. Ripley; R. C. Barneby 1945-6-16 6812 Humboldt 2.5 miles N. of Miranda Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC834  Carex harfordii Harley P. Chandler May, 1901 1115 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
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Sep 15 2010
  JEPS80026  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges, Blue Lake 152 Comment
  HSC102150  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1057 Humboldt Patterson Meadows 1555 Comment
  HSC103361  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8597 Humboldt At trailhead and along trail to Grogans Hole 610 Comment
  CAS-BOT-BC28502  Carex lenticularis var. limnophila Joseph Prince Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC31469  Carex leptopoda Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC48039  Carex leptopoda D. H. Norris 1972-6-26 23032 Humboldt Along Grouse Mtn. Rd., 5 mi. from intersection with Horse Mtn. Rd. Comment
  SEINET7565155 Image available Carex leptopoda David Castaner 1989-6-19 10248 a Humboldt Fern Canyon. Comment
  UC1103587  Carex luzulina var. luzulina Joseph P. Tracy 1933-7-16 12771 Humboldt South Fork Mountain, McKay Camp Northern Coast Ranges 1676 Comment
  UC195926  Carex luzulina var. luzulina Joseph P. Tracy 1914-7-4 4543 Humboldt High Prairie on Bald Mountain Northern Coast Ranges 1066 Comment
  CAS-BOT-BC31661  Carex lyngbyei Joseph Prince Tracy 1927-7-16 8428 Humboldt Near mouth of Elk River, Humboldt Bay. 3 Comment
  CAS-BOT-BC31663  Carex lyngbyei Joseph Prince Tracy 1935-6-8 13945 Humboldt Bordering Freshwater Slough, Humboldt Bay. 6 Comment
  HSC39228  Carex mendocinensis D. E. Anderson 1971-7-6 - 1284 Humboldt Horse Mtn. Comment
  UC1103570  Carex multicaulis Joseph P. Tracy 1919-5-31 5164 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 152 Comment
  UC562261  Carex multicaulis Joseph P. Tracy 1935-6-23 13996 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  CHSC88894  Carex obnupta L. P. Janeway; B. Castro 2004-9-11 8321 Humboldt North Coast. Near blocked south end of Little River Road 0.4 km north of Central Avenue; near south end of Clam Beach. 5 Comment
  HSC38334  Carex obnupta P. D. Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa, in vicinity of Humboldt County Airport Comment
  RSA22379  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  UCD140712  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  CHSC107131  Carex pachycarpa R. E. Brainerd 2009-7-23 1569 Humboldt Coast Range, South Fork Mountain; headwaters of Kerlin Creek; 19.6 air miles west-northwest of Hayfork; Forest Service Road 3N32. UTM zone 10 453507E 4494866 1716 Comment
  HSC82544  Carex pachystachya Thomas W. Nelson 1979-7-11 5005 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1115819  Carex pachystachya Joseph P. Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  UC562637  Carex pachystachya Joseph P. Tracy 1936-7-5 15043 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC119241  Carex pachystachya Joseph Prince Tracy 1939-7-9 16325 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  SEINET10949620  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13936 Humboldt Eureka. In woods. Comment
  HSC32420  Carex pansa Rudolf W. Becking 1974-6-15 Humboldt Between Samoa and Fairhaven, W of connecting road Comment
  UC2015859  Carex pellita Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4346 Humboldt Coast Range, Burr Valley area. 'False Burr Valley', beside Burr Creek. Comment
  CAS-BOT-BC118821  Carex preslii R. Tallent 1987-8-11 893 Humboldt Six Rivers National Forest. Roadside S of Horse Mtn. 1449 Comment
  CAS-BOT-BC117538  Carex serratodens Joseph Prince Tracy 1926-6-27 7692 Humboldt Horse Mountain. Comment
  CAS-BOT-BC117348  Carex stipata LeRoy Abrams 1918-6-16 7166 Humboldt Willow Creek. Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC115577  Carex tumulicola Joseph Prince Tracy 1915-6-6 4642 Humboldt At Eureka 60 Comment
  UC585640  Carex tumulicola Joseph P. Tracy 1937-6-20 15338 Humboldt 10 mi up stream from mouth Bear River 152 Comment
  JEPS100923  Carex vesicaria var. major Dean W. Taylor 1991-8-15 12278 Humboldt Snow Camp Lake 1310 Comment
  UC1103609  Carex vesicaria var. major Joseph P. Tracy 1938-7-7 16033 Humboldt Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC114983  Carex viridula Robert F. Thorne; P. Everett 1965-8-7 35198 Humboldt Big Lagoon at edge of bog at S end of Lagoon. 1 Comment
  UCD129942  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  HSC22608  Castanea dentata J. P. Smith, J. O. Sawyer 1971-10-16 5051 Humboldt 5.1 mi. E of Carlotta on Hwy. 36 Comment
  CAS-BOT-BC249132  Castilleja affinis Alice Eastwood; John Thomas Howell 1937-6-23 4837 Humboldt 11 miles from Kneeland on road to Yager 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
  JEPS25792  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-23 1210 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  JEPS26389  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1900-7-4 867 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 Comment
  RSA152367  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River. 3 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  CAS-BOT-BC241278  Castilleja latifolia Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  HSC41299  Castilleja pruinosa Brad Klipfel 1974-7-27 498 Humboldt Horse Mtn. Comment
  HSC44427  Castilleja pruinosa Brad Klipfel 1975-5-30 645 Humboldt Horse Mtn. Comment
  HSC103246  Castilleja pruinosa Lisa D. Hoover 1996-6-12 145 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mtn. Quad, Horse Mtn. 1463 Comment
  RSA254787  Castilleja pruinosa Thomas W. Nelson 1974-5-30 1349 Humboldt Growing along the Hoopa-Redwood Valley Road. Comment
  UC26525  Castilleja subinclusa subsp. franciscana unknown 4815 Humboldt near Little River Comment
  CAS-BOT-BC47997  Ceanothus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1502103  Ceanothus R. Sutherland 1975-7-4 8 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  HSC41255  Ceanothus arcuatus Brad Klipfel 1974-6-25 445 Humboldt Horse Mtn. Comment
  HSC55626  Ceanothus cordulatus Overton, Butler 1979-7-24 9605 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC49315  Ceanothus cuneatus Doris K. Kildale 1926-12-19 2870 Humboldt South Fork. on South Fork of Eel River. 51 Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
Read comments
Aug 4 2016
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. Comment
  CAS-BOT-BC63678  Ceanothus integerrimus L. B. Kildale 1928-6-24 5279 Humboldt Entrance to Hoopa Mt. Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  CAS-BOT-BC51222  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC43246  Ceanothus parryi R. Sutherland 1975-7-5 8 .5775 Humboldt 244 Comment
  UC1193304  Ceanothus parryi R. H. Neuns 1950-7-13 127 Humboldt 3 miles sosuth of Alder Point 548 Comment
  UC1071292  Ceanothus prostratus A. E. Wieslander 1931-5-19 203 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  HSC43227  Ceanothus pumilus R. Sutherland 1976-4-25 2 .25476 Humboldt Comment
  CAS-BOT-BC52996  Ceanothus thyrsiflorus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC31463  Ceanothus thyrsiflorus Steve Selva, Roger Jensen 1974-8-28 100 Humboldt Behind HSU Campus Comment
  HSC60305  Ceanothus thyrsiflorus J. P. Smith 1970-6-7 3810 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  OBI44966  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  CAS-BOT-BC52864  Ceanothus velutinus Volney Rattan 1882-1-1 s.n. Humboldt Road to Knuland Prairie Comment
  UC503021  Ceanothus velutinus Joseph P. Tracy 1932-7-17 10698 Humboldt open ground at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC272108  Centaurea cyanus Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  UC1198631  Centaurium muehlenbergii Joseph P. Tracy 1918-7-1 4965 Humboldt from South Fork to Scotia (Holmes Flat, along Eel River); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC176992  Centaurium muehlenbergii Joseph P. Tracy 1912-7-23 3798 Humboldt 3 mi above mouth of South Fork of Eel River (along South Fork of Eel River); Northern Coast Ranges, South Fork of Eel River 30 Comment
  UCD121519  Centaurium tenuiflorum Joseph P. Tracy 1948-8-22 18109 Humboldt Van Duzen River, 4 miles E. of Carlotta. 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
  HSC31118  Cephalanthera austiniae J. O. Sawyer 1970-6-24 2263 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC666978  Cephalanthera austiniae Joseph P. Tracy 1937-7-24 15526 Humboldt 2 mi. s.e. Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  HSC40125  Cephalanthera austiniae Thomas W. Nelson, James Nelson 1976-7-28 3070 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  UCD98070  Cerastium glomeratum Joseph P. Tracy 1948-4-11 17964 Humboldt South Fork Station, on Eel River. 48 Comment
  CAS-BOT-BC179479  Cercis occidentalis Marcus E. A M Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  RSA2940  Cercis occidentalis Carl B. Wolf 1931-8-31 2380 Humboldt West side of South fork of Trinity River, 1 mi. above its mouth. Comment
  CAS-BOT-BC135532  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1927-4-10 7897 Humboldt Trinity River Valley, near the South Fork 182 Comment
  CDA5747  Cestrum fasciculatum P. Haggard 1979-6-5 Humboldt John Sievert property, Redway. 0 Comment
  CAS-BOT-BC85657  Chamaecyparis lawsoniana G. A. Coleman 1901-7-25 s.n. Humboldt Near head of Supply Creek, Hoopa Indian Reservation Comment
  HSC69753  Chamaesyce maculata Thomas W. Nelson 1977-10-10 3754 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  UC1198975  Chamaesyce serpyllifolia Joseph P. Tracy 1925-11-1 7299 Humboldt along Eel River (from South Fork to Scotia, Shively); Northern Coast Ranges 60 Comment
  UCSB30589  Chamerion angustifolium subsp. circumvagum Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca. 1/2-3/4 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 5 mi. E. of jct. of Fickle Hill Rd. and Park Ave., Arcata Comment
  SEINET200795 Image available Cheilanthes gracillima J. P. Tracy 1919-9-23 5289 Humboldt Trinity Summit 1830 Comment
  HSC98979  Cheilanthes gracillima Cara Witte 2008-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  UC55948  Chenopodium album J. P. Tracy 1903-8-4 1927 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1222586  Chenopodium ambrosioides Joseph P. Tracy 1950-9-22 19377 Humboldt near Slate Creek (8 mi below Orleans); Klamath River 121 Comment
  RSA478470  Chenopodium botrys T. Gertrude Williamson 1924-7-16 s.n. Humboldt Lane s Flats; bed of Eel River. Comment
  UC198570  Chenopodium pumilio Joseph P. Tracy 1916-9-5 4770 Humboldt 4 mi above mouth; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC205454  Chenopodium pumilio Joseph P. Tracy 1919-9-13 5200 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Eel River) 152 Comment
  CAS-BOT-BC451380  Chimaphila menziesii L. B. Kildale 1930-8-10 10530 Humboldt Snow Camp, head of Redwood Creek Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  SJSU913B  Chimaphila umbellata J. W. Tilden 1946-6-20 1011 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  HSC99516  Chimaphila umbellata subsp. occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 179 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA467018  Chimaphila umbellata subsp. occidentalis A. C. Life 1924-2-23 14589 Humboldt Kings Mts.,Redwood Park. Comment
  RSA43688  Chrysanthemum parthenium H. M. Pollard 1947-8-28 s.n. Humboldt Roadside near Perch Creek, Orleans region Comment
  CDA7412  Chrysanthemum segetum E. C. Whitney 1964-6-3 Humboldt Renus Ohman property, Rohnerville. 0 Comment
  CAS-BOT-BC36487  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road - at Thorn 304 Comment
  UC902027  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1949-8-7 18434 Humboldt e side Hoopa Valley (near the Big Hill lookout station) 914 Comment
  HSC55104  Chrysolepis chrysophylla var. minor G. L. Clifton 1979-7-31 11845 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1222141  Cicendia quadrangularis Joseph P. Tracy 1951-5-6 19397 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  UC314585  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD127358  Cicuta douglasii Bellue Goodwin 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC100575  Circaea pacifica Carl C. Marshall Jul 1886 348 Humboldt Xavier's Place, Bald Hills. Comment
  JEPS59187  Cirsium arvense W. L. Jepson 1936-8-17 17927 Humboldt 3 mi s Fields Landing Comment
  CDA1175  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  CDA1546  Cirsium remotifolium T. C. Fuller 1958-6-17 600 -58 Humboldt Wildcat Ridge near Bunker Hill. (Mattole Rd., S of Ferndale). 0 Comment
  CDA8376  Cirsium remotifolium David Juliano 2008-6-6 PDR# 1379441 Humboldt Friday Ridge Rd., 0 Comment
  JEPS59184  Cirsium remotifolium var. odontolepis W. L. Jepson 1902-8-3 2139 Humboldt Bear River Range to Bear River (hills overlooking ocean); Bear River Range 152 Comment
  UC668205  Cirsium remotifolium var. rivulare Joseph P. Tracy 1938-7-4 15997 Humboldt Iaqua 762 Comment
  RSA167261  Cirsium remotifolium var. rivulare Joseph P. Tracy 1947-6-8 17711 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  HSC76337  Cirsium vulgare Michael Ericksen 1981-8-20 1076 Humboldt Near Van Duzen Public Campground 1000 Comment
  RSA40411  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  CAS-BOT-BC228800  Cistanthe umbellata Joseph P. Tracy 1930-7-16 8946 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  CAS-BOT-BC228799  Cistanthe umbellata Doris K. Kildale 1927-7-22 3807 Humboldt Lassecks Peaks - Coral [Corral] Goat Camp 1661 Comment
  HSC16236  Clarkia amoena J. P. Tracy 1938-6-17 15957 Humboldt Cape Mendocino, S of point of the Cape 3 Comment
  UC183702  Clarkia amoena subsp. amoena Joseph P. Tracy 1912-7-26 3857 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC16233  Clarkia amoena subsp. huntiana P. A. Mansfield 1967-7-8 1 Humboldt 6 mi. W of Weitchpec on Hwy. 96 Comment
  RSA20945  Clarkia concinna subsp. concinna Carl B. Wolf 1937-6-19 8917 Humboldt North Coast Ranges, Van Duzen River, 2.8 miles West of Dinsmores 457 Comment
  UC1143187  Clarkia concinna subsp. concinna H. and M. Lewis 1947-6-13 419 Humboldt 1.9 mi w Van Duzen River Bridge (4-129) (Hwy. 36) Comment
  CHSC52939  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca 1/4 mile north of the boat ramp. 3 Comment
  CAS-BOT-BC164593  Clarkia gracilis subsp. gracilis Harley P. Chandler 1901-6-1 1363 Humboldt Hupa Indian Reservation 152 Comment
  POM247174  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1933-7-3 12634 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC172516  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  CAS-BOT-BC172505  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1928-6-24 5293 Humboldt Horse Mountain Road near junction of Willow Creek Road 853 Comment
  UC1071933  Clarkia purpurea subsp. quadrivulnera H. and M. Lewis 1947-6-13 415 Humboldt 0.1 mi w Trinity Co. line (Highway 36) Comment
  CHSC77466  Claytonia exigua subsp. exigua Vernon H. Oswald 2000-4-3 9912 Humboldt Near the junction of New Navy Base Rd. and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  UC184791  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1913-6-13 4095 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley of Van Duzen River); Northern Coast Ranges 762 Comment
  JEPS43187  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1916-4-30 4682 Humboldt Table Bluff Northern Coast Ranges, Humboldt Bay (aroung Humboldt Bay) 152 Comment
  UC203565  Claytonia rubra subsp. rubra Joseph P. Tracy 1918-4-14 4871 Humboldt Fish's Mill Creek; Northern Coast Ranges, Dows Prairie 60 Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC1223253  Claytonia sibirica Joseph P. Tracy 1951-6-14 19414 Humboldt Snow Camp Comment
  UC13660  Claytonia sibirica Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UCR122364  Claytonia sibirica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6975 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
  CAS-BOT-BC443888  Claytonia sibirica Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC91387  Claytonia sibirica Jeff Dunk, David Munger, Tallchief Comet 1987-2-24 Humboldt Arcata, NE of HSU field House to Jolly Giant Creek Comment
  JEPS43236  Claytonia sibirica W. L. Jepson 1934-5-7 16694 Humboldt Bull Creek Flat; Bull Creek Comment
  RSA117688  Claytonia sibirica S. S. Tillett 1956-7-5 603 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  SD90249  Claytonia sibirica Benjamin C. Stone 1952-6-19 112 Humboldt Humboldt Redwoods State Park; by Founders' Tree 152 Comment
  UC1223243  Claytonia sibirica Joseph P. Tracy 1950-7-2 18960 Humboldt 6 mi ne Hawkins Bar (Fern Spring); Trinity Summit Range, Happy Camp Mountain, Fern Spring 1280 Comment
  HSC39957  Clinopodium douglasii Linda M. Barker 1976-6-22 1613 Humboldt 3 mi. W of Arcata Comment
  HSC14387  Clinopodium douglasii David Adams 1960-7-17 Humboldt 2 miles S of Samoa 3 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
  CHSC79480  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Collected in the lot East Southeast of the Manila Community Services District sewage pump station. 6 Comment
  UC885542  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Larrabee Valley 762 Comment
  UC177178  Collinsia grandiflora Joseph P. Tracy 1913-6-14 4135 Humboldt opposite Buck Mtn (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  UC1196751  Collinsia heterophylla Joseph P. Tracy 1927-5-8 7988 Humboldt vicinity of Garberville 121 Comment
  HSC96243  Collinsia linearis Laurel Goldsmith, Wanda Naylor 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UC582464  Collinsia parviflora Joseph P. Tracy 1933-7-13 12567 Humboldt Hoopa Mountain near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  UC582465  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; Northern Coast Ranges, Bear River Ridge 609 Comment
  SBBG29130  Collomia heterophylla H. E. Parks -May-1933 1152 Humboldt Spruce Cove, Trinidad 76 Comment
  HSC45803  Collomia heterophylla J. P. Smith, J. O. Sawyer 1976-5-2 8629 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  SBBG103147  Collomia tracyi D. H. Wilken with C. Donahue 1976-7-16 12708 Humboldt Horse Mtn Natural Area, N of Berry Summit 1310 Comment
  UC23379  Collomia tracyi Harley P. Chandler June 1901 1475 Humboldt Klamath River North Coast Ranges 426 Comment
  BLMAR298  Comarum palustre Jennifer Anthony-Wheeler 2002-7-23 298 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  HSC5500  Conyza canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  UC1199443  Conyza floribunda Joseph P. Tracy 1929-10-13 8679 Humboldt Carlotta 60 Comment
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  HSC54018  Corallorhiza mertensiana Griswold, Butler 1979-7-12 7162 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC63024  Corallorhiza striata M. A. Baker 1979-6-24 903 Humboldt 2 km. S of Brush Mtn. Comment
  HSC78076  Cordylanthus maritimus subsp. palustris Craig Martz 1984-7-18 204 Humboldt Samoa Peninsula, about 100 feet E of paved parking area at the junction of Hwy. 255 and Vance Ave, upper edge of marsh. Comment
  HSC90967  Cordylanthus maritimus subsp. palustris Gail Newton 1982-6-5 3574 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS50770  Cordylanthus maritimus subsp. palustris Rimo Bacigalupi 1967-8-13 9307 Humboldt in salicornia salt marsh w of Northwest Pacific Railroad tracks and 1/8 mi n of Arcata Redwood Company plant 4 mi n Eureka (w shore of Arcata Bay); Arcata Bay Comment
  JEPS93170  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2460 Humboldt Vance Road turn off N of Hwy 255, Eureka to Samoa, saline marsh along Humboldt Bay, just past railroad tracks 5 Comment
  UC1409054  Cordylanthus maritimus subsp. palustris Robert F. Thorne and P. Everett 1965-8-7 35209 Humboldt Samoa Peninsula 0 Comment
  JEPS6786  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt Koby Ranch, on road between Willow Creek (an Three Creeks); Koby Ranch 609 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  CAS-BOT-BC101147  Corethrogyne filaginifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  UC604617  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt at Bucksport; Eureka 6 Comment
  CAS-BOT-BC212185  Cornus sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. E. of Hoopa Valley on new road towards Trinity Summit, North Coast Range 1524 Comment
  UC502982  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8653 Humboldt on Van Duzen R. opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  UC774995  Cornus sericea subsp. sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. e. Hoopa Valley (on new rd. towards Trinity Summit); North Coast Range 1524 Comment
  CAS-BOT-BC210537  Cornus sessilis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  HSC97380  Cortaderia jubata J. P. Smith 2007-9-29 12426 Humboldt Along Hilfiker Ln., just N of the Elk River Sewage Treatment Plant 2 Comment
  HSC58193  Corylus cornuta subsp. californica G. L. Clifton, Griswold 1979-8-2 12290 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  OBI20563  Corylus cornuta subsp. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Along Hookton Rd Comment
  CAS-BOT-BC180307  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 346 Humboldt Along Van Duzen River Comment
  RSA173975  Corylus cornuta var. californica R. F. Thorne 1957-9-2 19003 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  CHSC94959  Cotula coronopifolia K. Lang; J. Lang 2005-3-17 3 Humboldt Gold Bluffs Beach, near Orick. 0 Comment
  RSA20802  Crataegus douglasii Carl B. Wolf 1937-8-13 s.n. Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  UC1763986  Crataegus monogyna P. F. Zika 1995-5-1 12314 Humboldt 0.5 mi E of Ferndale (S of Grizzly Bluff Rd., S of and above cemetary) 60 Comment
  POM126151  Crataegus suksdorfii Joseph P. Tracy 1922-6-18 6097 Humboldt Valley along head of S Yoga Creek. 762 Comment
  UC1051582  Crepis capillaris Joseph P. Tracy 1948-9-20 18221 Humboldt Mill Creek Hoopa Valley 106 Comment
  UC1199453  Crepis capillaris Joseph P. Tracy 1919-5-31 5139 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  POM92411  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 miles south of Fortuna Comment
  RSA246757  Crocosmia X crocosmiiflora Robert F. Thorne, Percy C. Everett 1965-8-8 35271 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC1103236  Crypsis vaginiflora Joseph P. Tracy 1940-10-17 16773 Humboldt near Dyerville (river bar); Eel River, Camp Grant 48 Comment
  UC525607  Cryptantha affinis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8941 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC1239656  Cryptantha flaccida Joseph P. Tracy 1937-7-19 15455 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC175791  Cryptantha torreyana Joseph P. Tracy 1909-8-1 3071 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC79506  Cryptantha torreyana J. W. Blankinship 1893-6-29 Humboldt Eel River Comment
  UC175496  Cryptantha torreyana Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5730 Humboldt Supply Creek North Coast Ranges, Hupa Valley Comment
  UC63992  Cupressus lawsoniana Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa (Redwood trail) 762 Comment
  HSC57970  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-31 11699 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC104274  Cuscuta pacifica var. pacifica Samantha E. Andres 2016-5-29 16 Humboldt Salt Marsh Trail, Lanphere Dunes Unit 30 Comment
  HSC26874  Cuscuta pacifica var. pacifica Clifton Raymond Chesbrough 1973-6-20 104 Humboldt .25 mi. N of Eureka slough along Hwy. 101 Comment
  HSC90245  Cuscuta pacifica var. pacifica Jean Hanson 1980-8-28 109 Humboldt Indian (Gunther) Island in Humboldt Bay, Eureka, across from Coast Guard Station within 30 ft. of high tide line Comment
  UC1197869  Cuscuta subinclusa Doris Kildale 1926-9-6 Humboldt Lasseck Peak Comment
  UCD60076  Cynodon dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station. 60 Comment
  UCD60113  Cynodon dactylon Joseph P. Tracy 1939-8-18 16427 Humboldt Eureka. 15 Comment
  SEINET201035  Cynodon dactylon var. dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station 61 Comment
  HSC34970  Cynoglossum grande Thomas W. Nelson 1975-5-24 1877 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1222264  Cynoglossum grande Joseph P. Tracy 1946-6-23 17592 Humboldt near the McBride place at s.e. end Kneeland Prairie 762 Comment
  HSC90700  Cynosurus cristatus Gail Newton 1982-6-10 3603 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC99660  Cypripedium californicum T. Jimerson, J. Pageau 1979-6-22 598 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  UCD105685  Cytisus scoparius R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  SEINET12152438  Cytisus scoparius J. P. Tracy 1950-1 18830 Humboldt Eureka Comment
  CAS-BOT-BC189763  Dactylis glomerata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC70783  Dactylis glomerata Gail Newton 1980-7-23 1749 Humboldt Near Packsaddle Ridge 1463 Comment
  SEINET4565919  Dactylis glomerata J. B. Davy 1899-6-16 5557 Humboldt Scotia Comment
  CAS-BOT-BC189746  Danthonia californica Doris K. Kildale 1928-7-1 5308 Humboldt French Camp - Bald Hills - Orick Martins Ferry road. Comment
  UC526856  Danthonia californica Joseph P. Tracy 1931-5-31 9549 Humboldt Kneeland Prairie Northern Coast Ranges 792 Comment
  RSA34244  Danthonia californica var. americana L. Larsen 1935-5-25 s.n. Humboldt Redway [county not specified on label] Comment
  UC526685  Danthonia californica var. americana Joseph P. Tracy 1928-6-24 8463 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UCD61361  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC104098  Darlingtonia californica Monica Rodriguez, William A. Worley 2015-3-21 24 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  UC169898  Datisca glomerata Harley P. Chandler June, 1901 1518 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  RSA421918  Datura stramonium M. B. Dunkle 1936-8-22 4855 Humboldt Williams Grove, Eel River. 213 Comment
  SDSU2270  Daucus carota D. F. Howe 1959-8-4 2805 Humboldt Roadside 9 miles east of Arcata on #299. Comment
  HSC37850  Daucus pusillus Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  HSC43840  Daucus pusillus Maralyn O'Meara 1974-6-2 496 Humboldt South spit to Humboldt Bay Comment
  UC1197349  Daucus pusillus J. P. Tracy 1901-6-16 1145 Humboldt near Bucksport 0 Comment
  UC1196324  Delphinium andersonii Joseph P. Tracy 1935-7-24 14190 Humboldt rocky exposed places near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC9227  Delphinium decorum H. E. Parks; Joseph Prince Tracy 1927-4-23 7909 Humboldt Vicinity of Trinidad 60 Comment
  UC160909  Delphinium decorum subsp. decorum J. P. Tracy 1910-4-17 3119 Humboldt bluff back of Bucksport; immediate vicinity of Eureka 0 Comment
  RSA304854  Delphinium gracilentum James R. Shevock 1971-5-29 643 Humboldt Trinity Hwy. 457 Comment
  RSA152334  Delphinium hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley, Willow Creek Comment
  CHSC53294  Delphinium nudicaule L. P. Janeway 1984-5-13 774 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction. On a roadcut near Lone Star Creek. 609 Comment
  HSC45097  Delphinium nudicaule R. Sutherland 1978-4-24 13 .24478 Humboldt Kinsey Ridge 311 Comment
  HSC48946  Delphinium nudicaule M. A. Baker 1979-5-1 700 Humboldt Along old bed of Bluff Creek Comment
  HSC35357  Delphinium trolliifolium A. M. Montalvo, J. D. Ackerman 1975-6-22 490 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36. Comment
  CAS-BOT-BC121966  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  HSC44763  Delphinium trolliifolium Maralyn O'Meara 1972-6-8 93 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC45269  Delphinium trolliifolium M. Alcasas 1978-6-3 122 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  RSA20944  Delphinium trolliifolium Carl B. Wolf 1937-6-19 8916 Humboldt N Coast Range, 3 miles NE of Little Van Duzen River on road to Dinsmores. 762 Comment
  RSA32276  Delphinium trolliifolium H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale 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
  HSC37256  Deschampsia elongata Lon Hall 1975-6-19 393 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA12539  Deschampsia elongata C. B. Wolf 1934-7-2 5899 Humboldt at Snow Camp (Mts. east of Korbel) 1372 Comment
  RSA126941  Deschampsia elongata H. S. Yates 1936-6-17 5706 Humboldt Lower northwest slope of Buck Mountain 793 Comment
  UC1103215  Deschampsia elongata J. P. Tracy 1899-7-22 331 Humboldt immediate vicinity of Eureka 0 Comment
  UC38482  Deschampsia elongata Harley P. Chandler May, 1901 1175 b Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 54 Comment
  UCD63315  Deschampsia elongata A. H. Murphy 1948-10-21 Humboldt 1/4 mile east of Lassic Peak lookout, northeast of Blocksburg. Comment
  CHSC7026  Dicentra formosa K. R. Stern 1964-6-16 2113 Humboldt .7 mi. n of Big Lagoon bridge on w side of US Hwy. 101. Comment
  BLMAR696  Dicentra formosa Jennifer Wheeler 2011-5-23 696 Humboldt Lacks Creek, Bair Rd. about one mile from Hwy. 300 426 Comment
  HSC26869  Dicentra formosa Clifton Raymond Chesbrough 1973-6-19 93 Humboldt 1/2 mi. N of College Cove Comment
  HSC36234  Dicentra formosa John Rehling 1975-5-8 64 Humboldt Behind H.S.U. Campus Comment
  JEPS91306  Dicentra formosa subsp. formosa Dean W. Taylor 1971-5-2 1065 Humboldt Comment
  SEINET3071630 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka Comment
  RSA92453  Dichanthelium acuminatum var. fasciculatum F. W. Peirson 1923-7-9 3650 Humboldt along Eel River, Humboldt State Park Comment
  UC1198182  Dichelostemma X venustum Joseph P. Tracy 1927-5-21 8066 Humboldt s end Humboldt Bay; Salmon Creek Valley 15 Comment
  UC176624  Dichelostemma X venustum Joseph P. Tracy 1913-6-26 4351 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC15032  Dichelostemma capitatum J. Burtt Davy 1899-6-11 5430 Humboldt Hubbard's Station to Elk Prairie Comment
  HSC70662  Dichelostemma ida-maia Gail Newton 1980-7-14 1545 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC501017  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie - Bald Hills 457 Comment
  CDA39454  Dichelostemma ida-maia G. D. Barbe, T. C. Fuller 1974-6-17 1828 Humboldt Thorne Road, 4 miles west of Redway, southern part of the county. 0 Comment
  UC1222689  Dichelostemma ida-maia Joseph P. Tracy 1950-6-15 18777 Humboldt 5 mi n Harris (on the Overland Road); Mail Ridge Comment
  UC666912  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  SEINET3885674  Dichelostemma pulchellum James P. Smith 1973-5-5 6485 Humboldt Roadside and streamside along Cook and Green Pass.; 0 Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove Comment
  HSC30352  Digitalis purpurea E. A. Wise 1 Humboldt Base of Cypress Hall Dormitory, Humboldt State University Comment
  SEINET200655 Image available Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River near slate Creek below Orleans 8 miles. Roadside. 122 Comment
  CHSC94932  Diplacus aurantiacus K. Lang; J. Lang 2005-3-16 49 Humboldt Trinidad, N. California coast. 51 Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC146198  Disporum hookeri Joseph P. Tracy 1908-6-9 2663 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC535769  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  UC479427  Disporum smithii Marcus E. Jones, A. M. 1931-7-14 29277 Humboldt s of Eureka Comment
  CHSC56629  Distichlis spicata L. P. Janeway 1983-9-24 703 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  HSC9630  Distichlis spicata J. A. Waller 1965-5-21 48 Humboldt Salt Marsh off of Samoa Rd. Comment
  UCD64191  Distichlis spicata G. Douglas Barbe; T. C. Fuller 1974-6-17 1835 Humboldt Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  CHSC24852  Dodecatheon hendersonii A. D. Launer 1976-4-10 2 Humboldt On s bank of Conley Cr, 100 yds n of forks of Conley Cr, ca. 1.5 mi e of Church St. in Blocksburg. 487 Comment
  HSC12219  Drosera rotundifolia Gary J. Stebbins 1970-5-10 77 Humboldt S end of Big Lagoon, just S of the Rd. that crosses the marsh, 1.1 mi. N of the Big Lagoon store. Comment
  HSC7577  Drosera rotundifolia D. E. Anderson 1961-9-9 1800 Humboldt Big Lagoon County Park Comment
  HSC44528  Drymocallis lactea var. lactea Brad Klipfel 1973-7-1 136 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC77997  Drymocallis rhomboidea D. K. Imper 1982-7-2 1412 Humboldt Near Connely Creek, N Fork 1493 Comment
  UC197923  Dryopteris expansa Joseph P. Tracy 1914-6-7 4491 Humboldt N Fork Eel River Alton; Northern Coast Region 30 Comment
  BLMAR300  Dryopteris expansa Jennifer Anthony-Wheeler 2002-6-10 300 Humboldt South Spit, on North jetty, west of lone cypress 6 Comment
  UCSB30620  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  CAS-BOT-BC428055  Dudleya cymosa subsp. cymosa Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  JEPS49929  Dudleya farinosa W. L. Jepson 1902-8-4 2144 Humboldt Cape Mendocino 1 Comment
  CAS-BOT-BC428296  Dudleya farinosa A. A. Heller 1924-7-25 13886 Humboldt At Agate Beach near Trinidad. Comment
  SEINET4558820  Dysphania botrys Thomas S. Elias, Barbara A. Elias 1987-1 10624 Humboldt Fernbridge, 0.5 miles S of Route 101; along west bank of Eel River; about 0.5 miles North of bridge Comment
  CAS-BOT-BC197062  Echinochloa crus-galli Henry M. Pollard 1945-8-24 s.n. Humboldt Near Harley place Comment
  HSC58703  Eleocharis acicularis Griswold, Butler 1979-7-11 7086 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  RSA152345  Eleocharis acicularis var. acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow s Prairie. 61 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-BC112843  Eleocharis macrostachya Joseph Prince Tracy 1934-7-30 13506 Humboldt Dry Lagoon along coast in front of South End of Stone Lagoon. 3 Comment
  UC183688  Eleocharis macrostachya Joseph P. Tracy 1909-5-23 2973 Humboldt Eureka 0 Comment
  UC666877  Eleocharis macrostachya Joseph P. Tracy 1934-7-30 13506 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  UC303018  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UCD49814  Eleocharis pachycarpa S. Galen Smith; Malcolm A. Nobs 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon, Humboldt County. Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  CAS-BOT-BC203482  Elymus glaucus subsp. glaucus Harold E. Parks; Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. 1371 Comment
  HSC89898  Elymus glaucus subsp. glaucus Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  HSC98582  Elymus glaucus subsp. glaucus Cara Witte 2008-7-16 917 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UCD62351  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3484 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
  CAS-BOT-BC204330  Elymus trachycaulus subsp. trachycaulus David D. Keck 1948-7-1 5969 Humboldt South side of Big Lagoon Comment
  RSA10129  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek. 762 Comment
  UC1103294  Elytrigia repens Joseph P. Tracy 1937-8-13 15663 Humboldt Loleta 9 Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  POM225520  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 miles west of Willow Creek. Comment
  CAS-BOT-BC166891  Epilobium canum subsp. latifolium Lester Rowntree 1937-8-15 s.n. Humboldt Maple Creek east of Eureka Comment
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  JEPS121642  Epilobium ciliatum Jennifer Buck, Danielle Roach 2009-8-19 Humboldt Kerlin Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM06B Comment
  HSC74688  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2467 Humboldt Near Board Camp Mtn. 1478 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
  HSC69629  Epilobium ciliatum subsp. ciliatum R. Kalal 1980-5-18 30 Humboldt Along abandoned Rd. near entrance to Dry Lagoon State Park 21 Comment
  UC562507  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1933-8-30 13028 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCD105925  Epilobium ciliatum subsp. watsonii Linda M. Barker 1976-7-5 1637 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC13239  Epilobium ciliatum subsp. watsonii Steve Dorei 1970-10-9 36 Humboldt HSU Campus, around pond at W end of Fish Hatchery Comment
  HSC16348  Epilobium ciliatum subsp. watsonii Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC45464  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4390 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  UC505112  Epilobium hallianum Joseph P. Tracy 1931-6-28 9589 Humboldt lower foothills of nw slope Northern Coast Ranges, Buck Mountain 762 Comment
  HSC54877  Epilobium lactiflorum G. L. Clifton, Griswold 1979-7-25 10869 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC74235  Epilobium minutum M. A. Baker 1980-7-11 2792 Humboldt Near Red Mtn. 1341 Comment
  SEINET10632323  Epilobium oreganum Jane P. Nelson, Thomas W. Nelson 1975-7-20 Nelson 2053 Humboldt T2S, RSE, Sec 13; wet boggy serpentine soil under Jeffrey pine forest beside Rd 2508 to Pine Mtn. Comment
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Feb 3 2021
  UC562515  Epilobium oregonense Joseph P. Tracy 1935-7-26 14260 Humboldt Water Dog Lakes Trinity Summit (meadows) 1828 Comment
  CAS-BOT-BC171847  Epilobium septentrionale Carl B. Wolf 1927-8-30 1234 Humboldt 2 mi. so. of Petrolia on Matole River near where road crosses river. Comment
  UC845344  Epipactis gigantea Ira L. Wiggins 1930-7-8 4677 Humboldt cliffs along river near Scotia; Eel River Comment
  SEINET3865662 Image available Equisetum hyemale var. robustum J. P. Smith, class 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the Fish Hatchery.; 0 Comment
  CHSC7104  Equisetum telmateia K. Cox 1969-4-1 6 Humboldt Patrick's Point St. Pk. At foot of Agate Beach trail. 1 Comment
  CAS-BOT-BC57795  Equisetum telmateia Doris K. Kildale 1928-2-19 4274 Humboldt Metropolitan. Comment
  RSA175140  Equisetum telmateia var. braunii R. F. Thorne 1957-9-2 18995 Humboldt Burlington State Park, just S of Weott. Comment
  RSA53832  Eragrostis hypnoides Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC27395  Eremocarpus setiger Thomas W. Nelson 1970-9-3 220 Humboldt Mad River. Comment
  RSA783323  Erica lusitanica R. R. Halse 2010-3-25 7855 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  POM161486  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit 1890 Comment
  CAS-BOT-BC296107  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS41518  Erigeron foliosus var. confinis Harley P. Chandler 1901-6-1 1427 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  HSC26355  Erigeron glaucus T. O. Osborne 1970-9-16 32 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC90479  Erigeron glaucus Jean Hanson 1980-8-28 121 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  RSA636111  Erigeron glaucus R. F. Thorne 1974-7-29 45079 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  POM56121  Erigeron inornatus var. biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC581719 Image available Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC5526  Erigeron philadelphicus W. K. Parks Jun 1932 1381 Humboldt Trinidad Comment
  SDSU3939  Erigeron philadelphicus D. F. Howe 1962-5-21 3297 Humboldt 16 miles north of Garberville on #101. 61 Comment
  UC24051  Eriodictyon californicum Harley P. Chandler June, 1901 1352 Humboldt Hupa Indian Reservation North Coast Ranges, , Hupa Valley (Hupa Valley) Comment
  HSC74751  Eriogonum compositum Gail Newton 1981-7-10 2220 Humboldt Near Board Camp Butte 1494 Comment
  CAS-BOT-BC248809  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt Trinity Summit, head of Brett Hole 1828 Comment
  UC6344  Eriogonum latifolium H. N. Bolander 1866-1 6569 Humboldt Shelter Cove Comment
  CAS-BOT-BC261496  Eriogonum nudum var. nudum Doris Kildale 1931-6-6 10864 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  CAS-BOT-BC261489  Eriogonum nudum var. nudum Carl B. Wolf 1927-8-28 1168 Humboldt Along the Blue Lake road, 9 miles from Willow Creek Comment
  CAS-BOT-BC269862  Eriogonum nudum var. pubiflorum Doris K. Kildale 1926-6-9 2144 Humboldt Horse Mountain 1219 Comment
  NY323556  Eriogonum speciosum V. K. Chesnut 1888-7-23 s.n. Humboldt Hy-Am-Pum Valley; South Fork of Trinity River Comment
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC267970  Eriogonum umbellatum var. argus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1676 Comment
  UC774994  Eriogonum umbellatum var. dumosum Carl B. Wolf 1937-8-13 9221 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Square); North Coast Range 1219 Comment
  CAS-BOT-BC444001  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 air miles southwest of Salyer 1493 Comment
  HSC55026  Eriogonum umbellatum var. stellatum Overton, Butler 1979-7-31 11448 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SEINET3841345 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-23 14133 Humboldt Trinity Summit, Corral Prairie 1585 Comment
  HSC56960  Eriophorum crinigerum Overton, Butler 1979-7-23 9474 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC298514  Eriophyllum confertiflorum Kenneth Clark 1979-6-30 461 Humboldt Shelter Cove. Dead Man's Gulch, on lower terraces 9 Comment
  CAS-BOT-BC301018  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-7-21 10662 Humboldt Vanduzen [Van Duzen] River Comment
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  UC129577  Eriophyllum lanatum var. achilleoides Joseph Burtt Davy and Walter C. Blasdale 1899-6 5379 Humboldt near Harris Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  UCD132187  Eriophyllum lanatum var. arachnoideum James P. Smith 1973-5-26 6839 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1223132  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1987-7-4 17784 Humboldt ridge top 1 mi w of Mud Springs (in serpentine formation); Trinity Summit 1158 Comment
Read comments
Jun 28 2015
  CAS-BOT-BC301689  Eriophyllum lanatum var. lanceolatum Lincoln Constance; Reed C. Rollins 1942-5-12 2890 Humboldt Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec 121 Comment
  UC673207  Eriophyllum lanatum var. lanceolatum Lincoln Constance and Reed C. Rollins 1942-5-12 2890 Humboldt 12 mi n Weitchpec; Klamath-Siskiyou Region, Klamath River 121 Comment
  UC668204  Eriophyllum staechadifolium Joseph P. Tracy 1938-6-17 15958 Humboldt s of point of Cape Cape Mendocino 3 Comment
  UC1198963  Erodium botrys Joseph P. Tracy 1913-6-27 4353 Humboldt McClellan Mt., on the Sweasey place Northern Coast Ranges 609 Comment
  UC183565  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-7 3777 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC41572  Erysimum capitatum Doris Kildale Gillespie 1931-6-7 10624 Humboldt South Fork Mount Blake Lookout. 1726 Comment
  HSC85821  Erysimum capitatum David Munger, Tallchief Comet, Jeff Dunk 1987-5-11 101 Humboldt Titlow Hill Rd., 1 mi. from Hwy. 299 intersection Comment
  CAS-BOT-BC133258  Erythronium L. R. Abrams 1918-6-15 7099 Humboldt Brannan Mt near Willow Creek 1371 Comment
  UC1134592  Erythronium californicum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  HSC48836  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 29 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  CAS-BOT-BC403032  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC1196290  Eschscholzia californica Joseph P. Tracy 1912-7-4 3734 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1199348  Euchiton gymnocephalus Joseph P. Tracy 1936-8-24 15175 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC552243  Euchiton gymnocephalus Joseph P. Tracy 1932-8-13 10349 Humboldt Trinidad 3 Comment
  HSC49682  Euchiton sphaericus J. O. Sawyer 1977-7-1 2990 Humboldt Aikens campground. Comment
  UC1199358  Euchiton sphaericus Joseph P. Tracy 1931-8-8 9608 Humboldt along Lord-Ellis Road (headwaters of North Fork of Mad River); North Fork of Mad River 609 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
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  UC54897  Euphorbia spathulata Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  JEPS31918  Eurybia radulina Lincoln Constance 1934-6-19 911 Humboldt Grasshopper Peak (near summit) South fork Eel River, Grasshopper Peak 914 Comment
  UC249850  Eurybia radulina Joseph P. Tracy 1924-8-10 6813 Humboldt at Blue Slide, on Van Duzen River Van Duzen River 91 Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  HSC100109  Festuca arundinacea T. L. Ackerman 1964-5-15 48 Humboldt Dunes west from Fairhaven sign Comment
  HSC9818  Festuca arundinacea D. J. McVean 1965-5-18 76 Humboldt Along Old Arcata Rd. just S of intersection with Indianola Rd. Comment
  HSC9819  Festuca arundinacea E. W. Styskel 1964-4-28 74 Humboldt End of Davis St. at edge of Eel River in Rio Dell. Comment
  HSC9820  Festuca arundinacea D. E. Anderson 1961-9-13 1821 Humboldt Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  HSC70397  Festuca californica M. A. Baker 1980-6-7 1805 Humboldt Near Brush Mtn. 1128 Comment
  UCR64441  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt North Coast Range; The Lassics, west of Alder Springs along 2S07 1524 Comment
Read comments
Jul 24 2010
  UCD65873  Festuca californica subsp. californica R. Tofsrud 1947-7-1 203 Humboldt Between Alder Point and Zinea. Comment
  RSA10078  Festuca elmeri Joseph P. Tracy 1927-5-8 7962 Humboldt Phillipsville open oak groves facing South Fork of Eel River. 122 Comment
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  HSC70903  Festuca idahoensis R. York 1980-5-18 599 Humboldt Near Black Mtn. 792 Comment
  HSC71744  Festuca idahoensis M. A. Baker 1980-6-26 2426 Humboldt Near Sims Creek 610 Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC9975  Festuca rubra R. I. Bonn 1965-5-7 24 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC1132004  Festuca rubra H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. 0 Comment
  HSC70481  Festuca subulata Gail Newton 1980-7-20 1632 Humboldt Near Bell Swamps 1426 Comment
  HSC9949  Festuca subuliflora L. M. Malloy 1965-5-20 32 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  HSC102011  Floerkea proserpinacoides M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 912 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  POM275019  Fragaria chiloensis Lyman D. Benson 1928-7-10 450 Humboldt Clam Beach, Trinidad. 9 Comment
  HSC18394  Frangula californica P. W. Shields May 1955 Humboldt 2 mi N of Willow Creek Comment
  HSC89485  Frangula purshiana P. A. Daly 1984-5-13 19 Humboldt Along trail at Trinidad Head 61 Comment
  POM130724  Frasera albicaulis var. nitida H. P. Chandler 1901-06 1486 Humboldt Klamath River. Comment
  JEPS44086  Fraxinus latifolia W. L. Jepson 1903-6-15 2205 Humboldt Briceland Comment
  POM188359  Fraxinus latifolia Marcus E. Jones 1931-7-16 28864 Humboldt Junction, East of Arcata. Comment
  SEINET6694687 Image available Fraxinus oregona Joseph P. Tracy 1922-1 6060 Humboldt South Yager Creek Valley 762 Comment
  HSC65858  Fritillaria affinis Gail Newton 1980-6-28 710 Humboldt Near Mad River Butte. 1536 Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  SEINET200745  Fritillaria lanceolata Joseph P. Tracy 1940-5-17 16549 Humboldt McClellan Mountain. 762 Comment
  CAS-BOT-BC130449  Fritillaria purdyi Elrid H. Spinas 1948-5-22 45 Humboldt Horse Mt. Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC71806  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson 1980-6-27 5949 Humboldt Along low ridge NE of small vernal pond at N base of Red Lassic 1677 Comment
  UC176062  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3913 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC102634  Galium aparine M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1619 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC53906  Galium aparine Griswold, Butler 1979-7-11 6913 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC19793  Galium aparine Joel W. Reinhard 1966-4-30 29 Humboldt N of College Cove Comment
  HSC82402  Galium bifolium Thomas W. Nelson 1979-7-11 5036 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  JEPS6702  Galium bolanderi Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  RSA698804  Galium californicum J. R. Bruff 1937-8-17 916 Humboldt Richardson Grove. Comment
  JEPS6481  Galium divaricatum Joseph P. Tracy 1920-7-11 5343 Humboldt 2 mi se Arcata; Fickle Hill 304 Comment
  UC1143099  Galium divaricatum H. S. Yates 1936-6-23 5876 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  JEPS52840  Galium muricatum Lauramay T. Dempster 1963-9-3 3919 Humboldt s Orleans (steep w-facing slope of side canyon); Slate Creek Bridge 94 Comment
  UC602528  Galium muricatum Joseph P. Tracy 1934-7-22 13488 Humboldt North Yager Creek 396 Comment
  UC1196102  Galium parisiense Joseph P. Tracy 1916-6-19 4719 Humboldt at Forks of Dobby Creek Northern Coast Ranges 182 Comment
  HSC61722  Galium porrigens var. porrigens Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC39794  Galium trifidum Peter Sorensen 1976-8-8 Humboldt King Salmon 0 Comment
  BLMAR418  Galium trifidum subsp. columbianum Jennifer Wheeler August, 2007 418 Humboldt South Spit, growing on East side near bay 9 Comment
  HSC76233  Galium triflorum Teresa Prendusi 1981-7-9 166 Humboldt Near Cedar Camp. 1268 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
  HSC37838  Garrya buxifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2246 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  HSC56997  Garrya buxifolia Overton, Butler 1979-7-24 9574 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC72784  Garrya buxifolia M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  RSA46715  Garrya buxifolia Doris K. Kildale 1937-8-15 15331 Humboldt High Divide Comment
  UC1196889  Garrya buxifolia Joseph P. Tracy 1938-6-13 15906 Humboldt Horse Mountain 1402 Comment
  CHSC19502  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W. M. Lanphere's ranch 9 Comment
  HSC26354  Garrya elliptica T. O. Osborne 1970-9-16 48 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC314603  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region 6 Comment
  HSC98881  Garrya fremontii Cara Witte 2008-7-2 800 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  RSA89596  Garrya fremontii M. F. Moseley 1952-8-21 346 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  UC1196893  Garrya fremontii Joseph P. Tracy 1947-7-9 17840 Humboldt Horse Mountain 1402 Comment
  CDA38572  Garrya fremontii T. C. Fuller, T. Gallion 1959-7-23 2833 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  SEINET12518332 Image available Gastridium ventricosum Harley P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  CHSC27892  Gaultheria shallon Susan Perkins 1978-4-25 41 Humboldt Redwood Park, e end of 13th St., Arcata, .8 mi e of City Hall. 7 mi nne of Eureka. 48 Comment
  HSC89436  Gaultheria shallon P. A. Daly 1984-5-13 25 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  JEPS66606  Gaultheria shallon W. L. Jepson 1932-8-1 16470 Humboldt at Giant Tree, Bull Creek Bull Creek; Giant Tree, Bull Creek 182 Comment
  POM285360  Gaultheria shallon Lyman Benson 1928-7-10 583 Humboldt Clam Beach, Trinidad. 8 Comment
  RSA467233  Gaultheria shallon M. B. Dunkle 1936-8-20 233 Humboldt Hupa Mts. Road Orick to Klamath River. Comment
  UC1197592  Gaultheria shallon J. P. Tracy 1901-5-30 1114 Humboldt immediate vicinity Eureka 0 Comment
  UC719770  Gaultheria shallon Rogers McVaugh 1941-8-3 6219 Humboldt 1 1/4 mi s of Headquarters of Patrick's Point State Park Comment
  HSC54658  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9877 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC54756  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-26 10293 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC76038  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-8-2 12582 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  POM247153  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  UC144070  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1908-6 2800 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  POM223144  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  HSC34638  Genista monspessulana J. M. Sauser 1975-4-9 3 Humboldt Old Arcata Rd., 3/4 mi. S of junction with Indianola Rd. Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  HSC12414  Gentiana sceptrum D. Santana 1970-10-14 35 Humboldt Big Lagoon Bog Comment
  HSC23999  Geranium bicknellii Tim Baroni 1971-7-6 125 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  JEPS61433  Geranium molle W. L. Jepson 1902-6-25 1933 Humboldt Korbel to Angel's Ranch Comment
  HSC8655  Geranium molle Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  HSC89987  Geranium molle Leonel Arguello 1989-6-24 24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, Hunt parcel Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  UC1225824  Gilia capitata subsp. capitata Joseph P. Tracy 1948-6-13 18051 Humboldt 2 mi n Harris; near Harris 609 Comment
  CAS-BOT-BC226144  Gilia capitata subsp. pacifica Mrs. G. Earle Kelly 1924-6-1 s.n. Humboldt Castle Island near Crescent City Comment
  CAS-BOT-BC226145  Gilia capitata subsp. pacifica Doris K. Kildale 1925-6-28 794 Humboldt Kneeland Prairie - bald hills 762 Comment
  UC1197928  Gilia capitata subsp. pacifica Joseph P. Tracy 1937-5-30 15310 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  UC907902  Gilia capitata subsp. pacifica Joseph P. Tracy 1948-9-25 18225 Humboldt Eureka Comment
  CAS-BOT-BC225469  Gilia millefoliata Bolemanson 1907-5-15 s.n. Humboldt Samoa Comment
  HSC59713  Gilia millefoliata Clark L. Miller 1979-5-9 4114 Humboldt Samoa Dunes off Samoa Blvd. Comment
  SD197869  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt Samoa Peninsula near Eureka, along Highway 255, 1.5 mile south of Samoa intersection, west side of highway. 7 Comment
  SEINET6996156  Githopsis specularioides Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC184937  Glyceria elata Joseph P. Tracy 1909-7-31 3049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC207736  Glyceria elata Joseph P. Tracy 1916-6-25 4748 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges, Redwood Creek 152 Comment
  UC212892  Glyceria elata Joseph P. Tracy 1919-9-25 5297 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  SEINET11836330  Gnaphalium palustre H. E. Parks, Parks, S. T. 1937-1 24080 Humboldt Spruce Cove, Trinidad Comment
  UCR122355  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7010 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD132548  Grindelia camporum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1179 Humboldt Around Fields Landing. Comment
  CAS-BOT-BC304754  Grindelia hirsutula H. E. Parks 1941-8-1 24190 Humboldt Big Lagoon Comment
  HSC39104  Grindelia hirsutula J. D. Ackerman 1975-8-31 654 Humboldt Lanphere Rd., near Mad River Slough, Arcata Bottoms Comment
  HSC90398  Grindelia hirsutula Jean Hanson 1980-8-28 115 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. From ca. 20 to ca. 50 ft. from high tide line. Comment
  JEPS25801  Grindelia hirsutula L. R. Heckard 1960-8-31 1220 Humboldt s end Dry Lagoon Beach State Park Comment
  UC1192227  Grindelia hirsutula Malcolm A. Nobs and S. Galen Smith 1949-8-3 1179 Humboldt salt marshes around Fields Landing Fields Landing Comment
  UC774622  Grindelia hirsutula Carl B. Wolf 1937-9-12 Humboldt 1 mi s Arcata (on road to Eureka); Humboldt Bay 3 Comment
  HSC57431  Hackelia micrantha G. L. Clifton, Griswold 1979-7-26 10209 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  UC525578  Hackelia micrantha Joseph P. Tracy 1932-7-17 10691 Humboldt head of Devil's Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC58066  Hastingsia alba G. L. Clifton, Griswold 1979-8-1 11944 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC61032  Hastingsia alba T. Jimerson, J. Pageau 1979-8-10 731 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC303042  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  CAS-BOT-BC508213  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  HSC57626  Hazardia whitneyi G. L. Clifton, Griswold 1979-7-25 10765 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56436  Helenium bigelovii Griswold, Butler 1979-7-12 7151 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1409057  Helenium bolanderi Robert F. Thorne and P. Everett 1965-8-7 35194 Humboldt at s end Big Lagoon 1 Comment
  UC582769  Helenium bolanderi H. E. Parks and Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  HSC48729  Hemitomes congestum J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 523 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 185 1037 Comment
  UC302294  Hemizonella minima Joseph P. Tracy 1926-6-27 7684 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC495624  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Dobbyn Creek Northern Coast Ranges Comment
  CAS-BOT-BC309989  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1914-7-5 4570 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain 1066 Comment
  CAS-BOT-BC309996  Hemizonia congesta subsp. tracyi L. R. Abrams 1916-7-11 6001 Humboldt Between Blocksberg [Blocksburg] and Bridgeville Comment
  UC677739  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 699 Humboldt 1 mi w Bridgeville; Van Duzen River Comment
  UC198602  Heteromeles arbutifolia Miss Landergen Dec 1916 Humboldt Fort Seward; Northern Coast Ranges 91 Comment
  UC480921  Heterotheca oregona var. compacta Harley P. Chandler 1901-6-1 1430 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC581759  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda, along South Fork of Eel River South Fork of Eel River 121 Comment
  UC485473  Heterotheca oregona var. rudis unknown Humboldt Chandler, <rest illegible> Klamath River Comment
  HSC45609  Heuchera micrantha Diane L. Reed 1978-5-7 66 Humboldt E fork of Willow Creek, 34 mi. from US 101 on state Hwy. 299 Comment
  CAS-BOT-BC420724  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7150 Humboldt Willow Creek Comment
  UC1222387  Heuchera micrantha var. macropetala Joseph P. Tracy 1950-7-2 18976 Humboldt at crossing of Little Hors Linto Creek (below Grizzly Camp); Trinity Summit Comment
  HSC48819  Hieracium albiflorum Brad Klipfel 1973-7-31 232 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC49962  Hieracium albiflorum Maralyn O'Meara 1974-7-11 542 Humboldt Kneeland; Barry Ridge Comment
  HSC57023  Hieracium albiflorum Overton, Butler 1979-7-24 9640 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC72677  Hieracium albiflorum J. P. Smith 1977-7-3 9241 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  HSC74734  Hieracium albiflorum Gail Newton 1981-7-24 2303 Humboldt Near Chaparral Mtn. 1433 Comment
  HSC98820  Hieracium albiflorum Cara Witte 2008-7-30 963 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  HSC58196  Hieracium greenei G. L. Clifton, Griswold 1979-8-2 12295 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  UC1191968  Hippuris vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1191 Humboldt marsh & bog land at southern outskirts Eureka Comment
  HSC37948  Holcus lanatus Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  HSC71745  Holcus lanatus M. A. Baker 1980-6-26 2429 Humboldt Near Sims Creek 610 Comment
  HSC23709  Holodiscus discolor Tim Baroni 1971-6-25 43 Humboldt Comment
  HSC41306  Holodiscus discolor Brad Klipfel 1974-7-23 469 Humboldt Horse Mtn., on the NE side of the ridge. Comment
  HSC57957  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11651 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC98777  Holodiscus discolor Cara Witte 2007-8-8 623 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  SD61035  Holodiscus discolor Darley F. Howe 1964-8-10 Humboldt 1.8 mile from Ferndale on rd. to Petrolia 305 Comment
  UC666850  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse mountain 1524 Comment
  UC902139  Holodiscus discolor Joseph P. Tracy 1947-8-24 17906 Humboldt Trinity Summit near Box Camp; Trinity Summit 1463 Comment
  HSC10192  Hordeum jubatum J. P. Tracy 1927-7-16 8249 Humboldt Mouth of Elk River. 3 Comment
  HSC23405  Hordeum marinum subsp. gussoneanum Jeff Blake 1971-11-15 Humboldt Bear Ridge area, near Petrolia. Comment
  HSC99121  Hordeum marinum subsp. gussoneanum Cara Witte 2007-6-4 201 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1198711  Horkelia californica Joseph P. Tracy 1930-6-15 8755 Humboldt n Dobbyn Creek; Northern Coast Ranges 152 Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 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
  HSC97584  Horkelia tridentata subsp. flavescens C. Witte 2007-5-18 43 Humboldt Near Bottleneck Spring. 1575 Comment
  HSC76236  Horkelia tridentata var. flavescens Denis Kearns 1981-7-6 83 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  HSC58547  Hosackia crassifolia Overton, Butler 1979-7-24 9601 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC1103413  Hydrocotyle ranunculoides Joseph P. Tracy 1940-10-5 16744 Humboldt mouth of Little River 3 Comment
  UC562601  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC562599  Hydrophyllum occidentale Joseph P. Tracy 1933-7-11 12700 Humboldt Grouse Mountain; North Coast Ranges, Trinity Summit 1524 Comment
  JEPS1637  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC1239767  Hydrophyllum tenuipes Joseph P. Tracy 1931-5-31 9535 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of Kneeland Road) 457 Comment
  HSC102178  Hypericum anagalloides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1091 Humboldt Patterson Meadows 1555 Comment
  RSA12422  Hypericum androsaemum C. B. Wolf 1934-7-2 5874 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC1198406  Hypericum formosum var. scouleri Joseph P. Tracy 1932-9-16 10799 Humboldt Dow's Prairie Northern Coast Ranges, Dow's Prairie 60 Comment
  UC668257  Hypericum perforatum Joseph P. Tracy 1935-7-27 14274 Humboldt along trail Corral Prairie; Trinity Summit, Corral Prairie 1584 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
  CAS-BOT-BC312888  Hypochaeris glabra Barry Silver 1986-5-18 602 Humboldt Bull Creek Flats Road, 100 yds. w. of junction with Highway 101 Comment
  UC302050 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek 152 Comment
Read comments
Feb 27 2012
  UC1103805  Ionopsidium acaule Joseph P. Tracy 1933-3-12 10919 Humboldt Ferndale, St. Mary's Cemetery Ferndale; North Coast Ranges, , St. Mary's Cemetery 15 Comment
  JEPS17218  Iris douglasiana Milo S. Baker 1923-7-31 157 a Humboldt Lawrence Creek; central Humboldt County Comment
  UC1193099  Iris longipetala P. Zinke 1950-10-11 188 Humboldt 4 mi se Punta Gorda; Lake Ridge 243 Comment
  JEPS88845  Iris purdyi Carol A. Wilson 1992-4-26 92 -ph7 Humboldt se of Fortuna (at Bridgeville, where Hwy 36 crosses the bridge); Bridgeville 259 Comment
  RSA135939  Iris purdyi Lee W. Lenz, E. K. Balls 1951-5-9 16513 Humboldt 5 miles south of Richardsons Grove, Highway 101 Comment
  HSC66484  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 435 Humboldt FS Rd. 12N20, 0.9 mi. from FS Rd. 15N01, Orleans 762 Comment
  HSC66485  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 440 Humboldt 1.3 mi. S of Hwy. 96 on Ishi Pishi Rd., W side of road, Orleans 232 Comment
  JEPS88855  Iris tenax subsp. klamathensis Carol A. Wilson 1992-5-15 92 -ph20 Humboldt just s Orleans (along Icesee Road from where it leaves Hwy 96 to top of hill) Comment
  HSC44321  Iris tenuissima Brad Klipfel 1975-6-17 668 Humboldt Horse Mtn. Comment
  CAS-BOT-BC88652  Isatis tinctoria Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek, near Orleans. Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC98028  Isolepis setacea Cara Witte 2007-7-11 494 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  CHSC56526  Jaumea carnosa L. P. Janeway 1983-9-24 705 Humboldt Sand pit next to Big Lagoon. 3 Comment
  POM187933  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata. Comment
  UCR48590  Jaumea carnosa R. D. Goeden, Don W. Ricker 1987-9-2 870902- 18 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  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
  UC303152  Juncus balticus subsp. ater Joseph P. Tracy 1925-8-2 7221 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC96448  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  UC14895  Juncus bolanderi J. P. Tracy 1900-9-9 940 Humboldt immediate vicinity Eureka 0 Comment
  RSA168858  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon. Comment
  HSC67455  Juncus bufonius J. P. Smith 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  SD51269  Juncus effusus subsp. pacificus Darley F. Howe 1961-8-2 Humboldt 8.5 miles east of Orick, on Bald Mounatin Road. 609 Comment
  HSC90769  Juncus ensifolius Gail Newton 1982-6-10 3597 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1152098  Juncus ensifolius Joseph P. Tracy 1938-7-4 15995 Humboldt Valley of South Yager Creek 762 Comment
  RSA246773  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35223 Humboldt Samoa Peninsula. 3 Comment
  UC205904  Juncus hesperius Hy Melde 1902-6-23 Humboldt Eureka Comment
  HSC38189  Juncus lescurii Peter Sorensen 1976-7-14 Humboldt N spit Comment
  HSC75484  Juncus mertensianus J. O. Sawyer 1980-7-18 3607 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  BLMAR429  Juncus patens Clara Sander 2003-8-5 429 Humboldt Humboldt County, Growing along Hwy101 between bayside cutoff and Samoa exit 8 Comment
  RSA298328  Juncus patens J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 5034 Humboldt Mad River above the Fish Hatchery. Comment
  SEINET11788655  Juncus xiphioides J. P. Tracy 1938-1 16171 Humboldt Lake Prairie Comment
  HSC58135  Juniperus communis var. saxatilis Gilbert Muth 1979-8-1 12143 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  UC719827  Keckiella corymbosa Rogers McVaugh 1941-8-3 6213 Humboldt ca 8 mi s Garberville; Richardson Grove State Park Comment
  NY790273  Keckiella corymbosa W. C. McCalla 1935-7-29 4253 Humboldt Open valley of Eel River Comment
  JEPS3419  Kickxia elatine Mrs. Emanuel Fritz 1934-8-4 Humboldt Phillipsville South Fork Eel River (Greenwald orchard, w Humboldt County) Comment
  UC1222453  Kickxia elatine Joseph P. Tracy 1934-8-14 13572 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UC479390  Lactuca biennis Marcus E. Jones, A. M. 1931-7-14 29090 Humboldt s Eureka Comment
  HSC27076  Lapsana communis Brad Klipfel 1973-8-25 292 Humboldt Across from Lazy L Ranch on Fickle Hill Rd. Comment
  RSA256583  Lapsana communis J. O. Sawyer 1970-6-24 2269 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  CAS-BOT-BC94770  Lathyrus angulatus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 829 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  HSC14734  Lathyrus japonicus S. J. Hawks 1965-5-18 74 Humboldt Clam Beach. Comment
  HSC14735  Lathyrus japonicus R. C. Hoover 1965-5-18 57 Humboldt Clam Beach Comment
  HSC40263  Lathyrus littoralis Linda M. Barker 1976-4-30 1409 Humboldt 3 mi. W of Arcata Comment
  RSA667222  Lathyrus littoralis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7014 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  HSC14751  Lathyrus nevadensis var. nevadensis D. E. Anderson 1962-5-1 2203 Humboldt 1 mi. W of Hoopa Comment
  SEINET5327351  Lathyrus palustris J. Tracy 1907-7-20 2593 Humboldt near Samoa; region about Humboldt Bay 152 Comment
  UCD106344  Lathyrus polyphyllus W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC89576  Lathyrus sphaericus K. Grenier, Leonel Arguello 1989-6-20 354 Humboldt Child's Hill Prairie, along Bald Hills Rd., next to Stagecoach. Comment
  JEPS55298  Lathyrus torreyi W. L. Jepson 1932-7-30 16456 Humboldt Bull Creek 121 Comment
  RSA138214  Lathyrus torreyi Volney Rattan 1903-1 1878 Humboldt [No location data on label] Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  HSC23457  Lathyrus tracyi D. E. Anderson 1965-5-1 3561 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC1199069  Lathyrus vestitus Joseph P. Tracy 1932-4-24 9815 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1199071  Lathyrus vestitus Joseph P. Tracy 1901-6-2 1120 Humboldt immediate vicinity Eureka 0 Comment
  JEPS46259  Lathyrus vestitus var. ochropetalus W. L. Jepson 1934-5-7 16687 Humboldt Dyerville Comment
  HSC26331  Layia carnosa Thomas W. Nelson 1971-4-16 381 Humboldt On dunes along the Samoa Peninsula adjacent to the Coast Guard Station Comment
  HSC33755  Layia carnosa A. Montalvo 1975-5-24 272 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC34455  Layia carnosa J. P. Smith, J. O. Sawyer 1975-5-11 8078 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  UC165025  Layia carnosa J. P. Tracy 1901-4-14 1017 Humboldt opp. Eureka Samoa Comment
  UC34175  Layia carnosa Harley P. Chandler May 1901 1150 Humboldt Humboldt Bay 3 Comment
  UC1409177  Ledum glandulosum Robert F. Thorne and P. Everett 1965-8-9 35295 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC534641  Lemna minuta Henry M. Pollard 1956-10-11 s.n. Humboldt Orleans Forest Service Station Comment
  UC1239532  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1918-8-15 5094 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  HSC26268  Lepidium campestre Thomas W. Nelson 1971-5-31 446 Humboldt Beside Hwy. 36 at Dinsmore Comment
  CHSC31922  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 1/4 mi w of its jct with Arcata Rd, ca. 5 mi s of Arcata in Bayside. 15 Comment
  UC1116215  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris 762 Comment
  UC161584  Lepidium nitidum Joseph P. Tracy 1908-6-8 2642 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC73451  Leptosiphon ciliatus Gail Newton 1980-7-14 1466 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC341827  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges. Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 670 Comment
  POM260696  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges, Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 671 Comment
  HSC95585  Leucanthemum vulgare Andrea Pickart 2002-7-8 159 Humboldt N Spit Dunes, Mad River Co. Park, near parking area. 0 Comment
  SEINET11448001 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UC581785  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt along Mad River; Blue Lake Comment
  HSC48613  Leucanthemum vulgare Mark Flippo 1978-5-18 63 Humboldt Arcata, US 101 Comment
  HSC5358  Leucanthemum vulgare John A. Dubois 1962-5-23 19 Humboldt 20 mi. E of Arcata. Comment
  POM160891  Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad 3 Comment
  UCD65598  Leymus triticoides Malcolm A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, CA. 2 miles N of Eureka. Comment
  HSC56215  Ligusticum californicum G. L. Clifton, Terry Griswold 1979-8-2 12225 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC95380  Lilaeopsis occidentalis Andrea Pickart 2002-7-9 170 Humboldt Bracut Marsh at freshwater outlet into salt marsh 10 Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  UC179932  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 B Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  UC201617  Lilium pardalinum Joseph P. Tracy 1918-7-5 5003 Humboldt White Thorne Valley Northern Coast Ranges, Mattole River (banks of Mattole River) 304 Comment
  UC1198230  Lilium rubescens Joseph P. Tracy 1914-9-6 4616 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  HSC15789  Limnanthes douglasii Francis Winter 1960-5-7 Humboldt 3 mi. NE of Redwood Creek Ranch. 610 Comment
  UC1197415  Limnanthes douglasii Joseph P. Tracy 1927-5-8 7981 Humboldt Phillipsville Northern Coast Ranges (facing South Fork of Eel River) 121 Comment
  UC249575  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Phillipsville Northern Coast Ranges (slopes facing South Fork of Eel River) 121 Comment
  UC668184  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  UC1198582  Linanthus acicularis Joseph P. Tracy 1933-5-21 12214 Humboldt McClellan Mt. 609 Comment
  UC906752  Linanthus acicularis Joseph P. Tracy 1947-5-10 17680 Humboldt near Briceland 457 Comment
  JEPS58249  Linanthus bicolor Joseph P. Tracy 1933-6-13 12576 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  UC52386  Linanthus bolanderi Joseph Burtt Davy and Walter C. Blasdale 1899-5 5370 Humboldt between Harris and Hubbards Station Comment
  UCR37554  Linaria canadensis var. texana L. P. Janeway 1983-5-19 299 Humboldt Samoa Peninsula c. 1/2 mi north of Eureka-Samoa bridge. Between RR tracks and old Samoa Road near W edge of Arcata Bay 3 Comment
  HSC99449  Listera caurina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 99 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  HSC55228  Listera convallarioides G. L. Clifton, Griswold 1979-8-2 12428 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC49390  Listera cordata var. nephrophylla R. York 1979-4-21 245 Humboldt Behind the town of Korbel, Camp Bauer Comment
  JEPS37747  Lithocarpus densiflorus W. L. Jepson 1902-6 2024 A Humboldt Hupa Valley Comment
  SEINET12034164  Lithocarpus densiflorus K. S. Erdman 1970-1 4841 Humboldt Redwood Creek,about 2-3 mi above the road end. Near mouths of McArthur and Elam Creeks,Redwood Ntl Comment
  SEINET8981428  Lithocarpus densiflorus W. D. Billings 1940-6-25 s.n. Humboldt Cedar Creek, 35 miles east of Arcata Comment
  HSC6863  Lobularia maritima R. T. Forester 1963-3-31 35 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC283403  Lolium multiflorum C. L. Hitchcock; C. V. Muhlick 1963-7-14 22906 Humboldt Along Eel River at Fern Bridge Comment
  HSC10309  Lolium perenne E. W. Styskel 1964-4-25 69 Humboldt Alongside College Elementary School on Humboldt State College Campus, Arcata. Comment
  UC188800  Lolium temulentum Jos. Burtt Davy 1899-7-30 6205 Humboldt Russ Ranch Comment
  HSC70992  Lomatium californicum Gail Newton 1980-7-15 1575 Humboldt Near Sims Mtn. 1311 Comment
  JEPS16099  Lomatium californicum W. L. Jepson 1902-6-20 1892 a Humboldt Fort Seward Ranch Ridge (= Mail Ridge) 1219 Comment
  HSC71591  Lomatium dasycarpum subsp. dasycarpum M. A. Baker 1980-6-26 2398 Humboldt Near Sims Creek 610 Comment
  UC21100  Lomatium dissectum var. multifidum Harley P. Chandler June, 1901 1340 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  SEINET12118910  Lomatium nudicaule J. P. Tracy 1951-1 19573 Humboldt Twin Lakes vicinity (Snow Camp & Twin Lakes Trip) Comment
  HSC46923  Lomatium tracyi Brad Klipfel 1974-5-27 381 Humboldt Horse Mtn. Comment
  HSC47609  Lomatium utriculatum J. P. Smith 1977-4-23 9025 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC183624  Lomatium utriculatum Joseph P. Tracy 1912-6-9 3671 Humboldt Northern Coast Region, Alton 30 Comment
  JEPS13668  Lonicera conjugialis W. L. Jepson July 16 - 23, 1902 2036 Humboldt Trinity Summit 2133 Comment
Read comments
Apr 8 2012
  UC1239549  Lonicera conjugialis Joseph P. Tracy 1932-7-11 10413 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1239559  Lonicera hispidula var. vacillans Joseph P. Tracy 1938-7-5 16000 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC3926  Lonicera involucrata var. ledebourii W. R. Brigham 1962-5-19 8 Humboldt S of Big Lagoon. Comment
  UCR270277  Lotus John F. Emmel 2003-7-30 1798 Humboldt North Coast Range, Redwood National Park, 16.6 road miles southeast of Hwy 101 on Bald Hills Road, c. 0.3-0.4 air mile west of Schoolhouse Peak 823 Comment
  UC162847  Lotus aboriginus J. P. Tracy 1901-5-12 1078 Humboldt immediate vicinity Eureka 0 Comment
  UC179940  Lotus aboriginus Joseph P. Tracy 1914-9-6 4599 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC33554  Lotus aboriginus Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC1223437  Lotus corniculatus Joseph P. Tracy 1938-6-7 15863 Humboldt n side Mad River (about 0.5 mi e of bridge on Trinity Highway) Comment
  UC1223434  Lotus crassifolius var. crassifolius Joseph P. Tracy 1935-7-29 14341 Humboldt ne of Ranger Station (at beginning of Salmon Summit Trail, Humboldt County side); Trinity Summit, Salmon Summit Trail Comment
  HSC98247  Lotus formosissimus D. E. Anderson 1963-5-25 2485 Humboldt 2-3 mi. N of Capetown Comment
  UC169299  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3973 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC162810  Lotus wrangelianus Joseph P. Tracy 1909-5-16 2967 Humboldt near Trinidad; Northern Coast Ranges 15 Comment
  RSA168887  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1738 Comment
  HSC70698  Luina hypoleuca Gail Newton 1980-7-15 1554 Humboldt Near Sims Mtn. 1311 Comment
  CAS-BOT-BC198267  Lupinus Wm. Bridge Cooke 1946-6-11 17369 Humboldt Roadside 1 mi. N of Eureka Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  HSC41303  Lupinus albicaulis Brad Klipfel 1974-7-23 463 Humboldt Horse Mtn. Comment
  UC302117  Lupinus albicaulis var. shastensis Joseph P. Tracy 1926-5-15 7495 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1223274  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  SEINET200685  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek Comment
  RSA167471  Lupinus albifrons var. albifrons Joseph P. Tracy 1951-6-16 19472 Humboldt Near Oregon-California State Line. Comment
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Jul 12 2012
  CAS-BOT-BC196399  Lupinus arboreus R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-3 178 Humboldt On sand dunes of Clam Beach Comment
  SEINET3107399  Lupinus arboreus Steve Selva, Roger Jensen 1974-8-28 89 Humboldt Approx. 10 miles S of Arcata on the sand dunes of the Samoa Peninsula. Comment
  UCSB16724  Lupinus arboreus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa, on peninsula, on western side of Humboldt Bay Comment
  HSC103986  Lupinus bicolor E. R. Fyer 2015-4-26 26 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  HSC14796  Lupinus bicolor J. W. Johnson 1962-4-18 1249 Humboldt Arcata, Mad River County Park. 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
  UC659303  Lupinus elmeri Charles Piper Smith 1929-7-12 4406 Humboldt So<uth> Fork Mtn. Blake Lookout, South Fork Mtn.; Trinity N.F., So<uth> Fork Mountain Comment
  HSC38069  Lupinus latifolius Thomas W. Nelson, James Nelson 1976-5-30 2638 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS65284  Lupinus latifolius Joseph P. Tracy 1923-6-25 6376 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SEINET12154562  Lupinus latifolius J. P. Tracy 1939-1 16415 Humboldt Grouse Mtn, "Clear Lake" 1524 Comment
  HSC70982  Lupinus latifolius subsp. viridifolius Gail Newton 1980-7-22 1663 Humboldt Near Devils Backbone 1554 Comment
  OBI12876  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt North Coast Range, 20 mi N of Bridgeville on rd to Kneeland 457 Comment
  UC184850  Lupinus luteolus Joseph P. Tracy 1911-7-10 3496 Humboldt Valley of Trinity River near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River nr Willow Cre 152 Comment
  UCD109339  Lupinus pachylobus W. Williams 1951-1 s.n. Humboldt Bear Creek Valley. Comment
  SD42577  Lupinus polyphyllus Carl B. Wolf 1937-6-19 8912 Humboldt Van Duzen River, 0.3 mile above Bridgeville. 121 Comment
  HSC39785  Lupinus rivularis Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC14890  Lupinus variicolor J. W. Johnson 1961-9-10 1114 Humboldt Arcata, Christenson Farm or Hunt Farm, Samoa Peninsula Comment
  SEINET12154788  Lupinus variicolor J. P. Tracy 1938-1 16046 A Humboldt Brainards Point, betw Eureka and Arcata Comment
  HSC97585  Luzula comosa C. Witte 2007-5-18 39 Humboldt Grouse Mountain Lookout. 1644 Comment
  HSC75690  Luzula parviflora Bill Copeland 1980-7-2 310 Humboldt Near Snow Camp Mtn. 1311 Comment
  HSC95519  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt Pacific Lumber Co. land, NE edge of THP 1-00-032. 300 Comment
  UC1239796  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt in woods around swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  UC1440267  Lycopodium clavatum L. L. Kiefer and D. Branscomb 1964-5-20 1435 Humboldt on Kuntz property 1 mi e Moonstone Beach (near Trinidad) 152 Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC35500  Lysichiton americanus Petrovich May 1961 Humboldt Warren Cr. Comment
  SEINET10465778  Lysichiton americanus Sacks 1977-4-8 SACKS 5 Humboldt 0.2 mi W of Highway-101 and 5 mi. N of Trinidad 61 Comment
  SEINET11261199  Lythrum hyssopifolia W. J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Road, 2 miles north of Arcata.; 0 Comment
  RSA0015872  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  HSC38529  Madia elegans D. E. Anderson, J. P. Smith 1971-6-18 - 1067 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  CAS-BOT-BC344360  Madia exigua Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  UC166101  Madia exigua Joseph P. Tracy 1908-6 2815 Humboldt opposite Buck Mountain (Valley of the Van Duzen River); Northern Coast Ranges 762 Comment
  CAS-BOT-BC343024  Madia gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill 30 Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC74211  Madia gracilis M. A. Baker 1980-7-15 2961 Humboldt Near Whiting Ridge. 1341 Comment
  HSC37658  Madia gracilis R. Sutherland 1976-8-19 5 .19876 Humboldt 259 Comment
  UC165211  Madia gracilis J. P. Tracy 1909-9-12 2085 Humboldt near Buhne's Point; Eureka 0 Comment
  JEPS94960  Madia sativa Vernon Oswald and Lowell Ahart 1997-9-4 8854 Humboldt Somoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from ocean North Spit; Somoa Dunes Recreation Area, North Spit Comment
  CHSC10104  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Arcata. Along Lanphere Lane, Samoa Peninsula. Comment
  CHSC68509  Maianthemum dilatatum Vernon H. Oswald 1997-4-10 8324 .1 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  CDA39348  Maianthemum dilatatum Gordon Leppig 1998-5-11 760 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  JEPS79931  Maianthemum dilatatum Joseph P. Tracy 1926-4-25 7414 Humboldt Grizzly Creek on Van Duzen R. Northern Coast Ranges, Van Duzen R., Grizzly Creek 91 Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  RSA376911  Maianthemum dilatatum T. Gertrude Williamson 1924-7-11 s.n. Humboldt Arcata Comment
  CHSC31273  Maianthemum racemosum Mark Stopher 1980-5-20 69 Humboldt Along the Van Duzen River near Rte 36. Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  HSC97962  Maianthemum racemosum subsp. amplexicaule Cara Witte 2007-6-13 259 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  RSA309620  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1983-9-3 3932 Humboldt 3,2 mi W of Klamath River bridge W of Weitchpec, along road to Orick. Comment
  HSC60291  Maianthemum stellatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  HSC63688  Maianthemum stellatum Richard Spjut 1979-4-5 5450 Humboldt 6 mi. N or Petrolia along Hwy. along beach Comment
  HSC70360  Malacothrix floccifera Gail Newton 1980-6-7 141 Humboldt Near Brush Mtn. 1128 Comment
  POM98598  Malacothrix floccifera F. W. Peirson 1926-7-14 s.n. Humboldt Sandy shores of Eel River about 5 miles south of Scotia Comment
  CAS-BOT-BC140133  Malus fusca W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Pastures - Eel River Comment
  HSC38075  Marah oregana Thomas W. Nelson, James Nelson 1976-5-30 2632 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA80535  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head. Comment
  UC203564  Marah oregana Joseph P. Tracy 1918-4-28 4887 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC12785  Marah oregana M. J. Athey 1970-11-2 7 Humboldt Trinidad, just after Westhaven turnoff on Hwy. 101, and Havenway Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC71609  Medicago lupulina J. P. Smith, Steve Selva 1970-6-14 3815 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC673067  Medicago polymorpha Joseph P. Tracy 1936-6-8 14869 Humboldt Trinidad Bluffs Trinidad 3 Comment
  HSC43158  Medicago praecox R. Sutherland 1976-8-19 4 .19876 Humboldt 259 Comment
  RSA152364  Melica californica Joseph P. Tracy 1938-6-9 15886 Humboldt Mail Ridge, northwest of Harris 2 miles. 915 Comment
  SEINET200336 Image available Melica californica J. P. Tracy 1913-6-18 4195 Humboldt Dinsmore's Ranch vally of Van Duzen River opposite Buck Mtn N Coast Ranges 762 Comment
  HSC98816  Melica harfordii Cara Witte 2007-7-25 581 Humboldt Forest Service Road 5N10. Approximately 2.5 miles south from intersection with Forest Service Road 5N41. 1270 Comment
  UC249877  Melica harfordii Joseph P. Tracy 1923-6-3 6249 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC262471  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  UC526922  Melica subulata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8913 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC180483  Melica torreyana Joseph P. Tracy 1914-5-14 4451 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  UC1222474  Melilotus indicus Joseph P. Tracy 1943-11-28 17457 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  SEINET3228190 Image available Mentha pulegium Joseph P. Tracy 1930-9-1 9175 Humboldt Miranda, along South Fork of Eel River 120 Comment
  HSC12719  Mentha pulegium C. E. Fellows 1970-10-31 377 Humboldt Rio Dell, bank of Eel River, 1/2 mi. E of bridge on N side of town Comment
  HSC22008  Mentha pulegium Thomas W. Nelson 1970-10-18 250 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  UC577377  Mentha spicata Joseph P. Tracy 1925-8-16 7233 Humboldt Trinity River Valley, near the South Fork; Northern Coast Ranges, Trinity River Valley, near South Fork 182 Comment
  UC30121  Mentzelia dispersa Chestnut and Drew 1888-7-21 Humboldt S Fork Mt. Comment
  UC169909  Mentzelia laevicaulis var. laevicaulis P. E. Goddard July 1901 24 Humboldt Hupa Valley Comment
  UC164898  Micropus californicus var. californicus Joseph P. Tracy 1908-6-9 2653 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223202  Microseris acuminata Joseph P. Tracy 1948-6-13 18058 Humboldt roadside 3 mi w Harris 762 Comment
  RSA167395  Microseris douglasii subsp. douglasii Joseph P. Tracy 1950-7-6 19001 Humboldt 2 miles south of Burr Valley, on the Albee Road. 1159 Comment
  UC275469  Microseris douglasii subsp. douglasii Joseph P. Tracy 1925-5-30 7022 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  HSC39233  Microseris nutans D. E. Anderson, J. P. Smith 1971-7-6 - 1275 Humboldt Horse Mtn. Comment
  HSC70251  Microsteris gracilis M. A. Baker 1980-6-8 1917 Humboldt Near Buck Flat. 1554 Comment
  HSC82042  Microsteris gracilis Thomas W. Nelson, James Nelson 1980-6-10 5410 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC17187  Microsteris gracilis Elrid H. Spinas 1948-5-15 26 Humboldt Along rd. to Gouse Mtn. Lookout, 1 mi. from Hwy. 299 Comment
  HSC20679  Mimulus aurantiacus var. aurantiacus J. E. Lankila 1962-5-6 7 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC37239  Mimulus aurantiacus var. aurantiacus Lon Hall 1975-6-19 390 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  JEPS35817  Mimulus aurantiacus var. aurantiacus Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8963 Humboldt just above (1/8 mi) and e Shelter Cove Comment
  UC677720  Mimulus aurantiacus var. aurantiacus C. C. and S. K. Harris 1936-6-9 681 Humboldt above Carlotta 60 Comment
  UC722294  Mimulus aurantiacus var. aurantiacus C. L. Hitchcock, J. S. Martin 1939-7-14 5439 Humboldt Shelter Cove Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  HSC35630  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-1 2143 Humboldt Beside Willow Creek just up stream from Hwy. 299 bridge Comment
  JEPS4719  Mimulus dentatus Milo S. Baker 1923-7-16 16 Humboldt 3 mi e Eureka Comment
  HSC55348  Mimulus floribundus Griswold, Butler 1979-7-12 7240 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC100670  Mimulus glutinosus Carl C. Marshall Apr 1886 56 Humboldt Hills near coast. Comment
  UC168959  Mimulus guttatus Harley P. Chandler 1901-6-3 1341 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SEINET12330005  Mimulus guttatus F. H. Utech 1986-1 86 -405 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC582479  Mimulus inodorus Joseph P. Tracy 1933-8-6 12949 Humboldt French Camp Ridge 1066 Comment
  CDA41715  Mimulus kelloggii K. Esau 1935-4-23 s.n. Humboldt Ft. Seward. 0 Comment
  HSC32564  Mimulus moschatus Thomas W. Nelson 1973-9-3 1119 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC55736  Mimulus moschatus G. L. Clifton, Griswold 1979-7-26 10233 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC56067  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11733 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC74735  Mimulus moschatus Gail Newton 1981-7-24 2315 Humboldt Near Chaparral Mtn. 1433 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 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
  HSC43243  Mimulus moschatus R. Sutherland 1976-8-6 12 .6876 Humboldt 229 Comment
  POM273194  Mimulus moschatus var. sessilifolius Lyman Benson 1929-7-19 1873 Humboldt Mouth of Matole River. Comment
  HSC74453  Mimulus nanus var. nanus Gail Newton 1980-8-10 1994 Humboldt Near Blake Mtn. 1798 Comment
  HSC104079  Minuartia decumbens S. Carothers 2001-6-4 Humboldt Six Rivers National Forest; Lassics Botanical Area, ridge off Rd. 1S11 1646 Comment
  CAS-BOT-BC388629  Minuartia douglasii Harley P. Chandler 1901-6-1 1454 Humboldt North Coast Ranges. Klamath River 304 Comment
  HSC78916  Minuartia douglasii Jimerson, Imper 1982-5-17 1435 Humboldt Near Ashfield Ridge. 822 Comment
  UC668119  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  HSC4062  Minuartia pusilla H. E. Parks, J. P. Tracy 1930-5-25 866 Humboldt Laribee Valley 762 Comment
  CAS-BOT-BC433010  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt Along trail from Hoopa to the summit. Trinity Summit. Near Box Camp 1524 Comment
  RSA273428  Mitella ovalis M. A. Baker 1977-4-23 175 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  CAS-BOT-BC433030  Mitella ovalis V. Rattan No date on label s.n. Humboldt Unspecified 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
  HSC48742  Moehringia macrophylla Brad Klipfel 1973-6-10 67 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48859  Moehringia macrophylla Brad Klipfel 1974-5-27 392 Humboldt Horse Mtn. area, Titlow Hill 1494 Comment
  HSC97461  Moehringia macrophylla C. Witte 2007-5-21 51 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  HSC101970  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 866 Humboldt Patterson Meadows 1566 Comment
  HSC102521  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1508 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC98019  Monardella sheltonii Cara Witte 2007-7-9 457 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  UC2035935  Monardella villosa subsp. villosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  CAS-BOT-BC444804  Montia diffusa Harley P. Chandler 1901-5-1 1271 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  UC229834  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River (Phillipsville Flat); Northern Coast Ranges, , Phillipsville Flat 91 Comment
  HSC16105  Morella californica D. E. Anderson 1961-9-13 1805 Humboldt Big Lagoon County Park Comment
  UC1197939  Morella californica Joseph P. Tracy 1924-1-20 6596 Humboldt Northern Coast Region. Around Humboldt Bay near Samoa Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UC526747  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC275347  Muhlenbergia mexicana Henry M. Pollard 1947-8-19 s.n. Humboldt Wilson Creek, near Orleans Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  UC1222234  Myosotis discolor Joseph P. Tracy 1942-5-16 17354 Humboldt 1 mi. n.e. Garberville (on rd. to Harris) 304 Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  POM17167  Myrica californica J. B. Feudge 1923-8-1 50 Humboldt Fortuna 30 Comment
  RSA174002  Myrica californica Robert F. Thorne 1957-9-2 19009 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA256481  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt South Fork Mountain; in wet meadow at McKay Camp 1677 Comment
  CAS-BOT-BC60346  Nasturtium officinale Doris K. Kildale 1927-6-25 3555 Humboldt Shelter Cove. Comment
  HSC102140  Navarretia capillaris M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1044 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC55077  Navarretia capillaris G. L. Clifton, Griswold 1979-7-31 11689 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC908378  Navarretia divaricata subsp. vividior Joseph P. Tracy Jul 16 1930-Jul 19 1930 9065 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC60864  Navarretia intertexta Mrs. M. H. Manning Apr 1901 Humboldt Hupa Comment
  UC198634  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC133716  Navarretia pubescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5461 Humboldt Fruitland North Coast Ranges Comment
  UC1198524  Navarretia tagetina Joseph P. Tracy 1942-7-1 17362 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  UC198635  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1239737  Nemophila menziesii Joseph P. Tracy 1938-6-13 15919 Humboldt at Cold Springs , at Cold Springs (Grouse Mountain) 1432 Comment
  HSC32387  Nemophila menziesii var. atomaria Linda M. Barker 1974-5-11 183 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC77392  Nemophila menziesii var. atomaria L. P. Janeway 1983-4-16 233 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  HSC100498  Nemophila parviflora Carl C. Marshall Mar 1886 146 Humboldt About Arcata. Comment
  UC562589  Nemophila pedunculata Joseph P. Tracy 1936-6-17 14957 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, , Burr Valley 1066 Comment
  RSA43880  Nicotiana acuminata H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  HSC99274  Noccaea fendleri subsp. glauca D. E. Anderson 1965-5-1 3587 Humboldt Along Hwy. 96, 3-4 mi. S of Weitchpec Comment
  CAS-BOT-BC60563  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  HSC59483  Nuttallanthus texanus M. A. Ericksen 1979-4-29 242 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC31804  Oemleria cerasiformis Steve Selva, Roger Jensen 1974-8-28 93 Humboldt Humboldt State University Freshwater Forest Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  UC1198784  Oemleria cerasiformis Joseph P. Tracy 1921-3-13 5420 Humboldt Alton; Northern Coast Region 30 Comment
  HSC38335  Oenanthe sarmentosa Peter Sorensen 1976-8-11 Humboldt King Salmon Comment
  UCD81683  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  RSA44496  Oenothera glazioviana H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  CAS-BOT-BC171604  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt Coast, 2 mi. so. of Cape Mendocino 6 Comment
  UCD106955  Oenothera wolfii D. Wiesendanger; F. Randall 1926-8-1 1544 Humboldt Near Arcata. Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  UC1199306  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1932-7-13 10516 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS11679  Orobanche californica subsp. californica Joseph P. Tracy 1924-8-3 6761 Humboldt Big Lagoon. Comment
  CAS-BOT-BC502775  Orobanche californica subsp. californica J. Clausen 1932-9-18 690 Humboldt About 5 mi S of Cape Mendocino Lighthouse Comment
  HSC96246  Orobanche uniflora Kaylea Eickhoff, Cara M. Witte 2005-6-10 10 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  RSA407950  Orthocarpus purpurascens J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC82101  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5267 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UCR123963  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6973 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
  UC1197130  Osmorhiza occidentalis Joseph P. Tracy 1936-6-17 14948 1/2 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  HSC16719  Oxalis articulata subsp. rubra D. E. Anderson 1961-9-22 1827 Humboldt Comment
  HSC16728  Oxalis articulata subsp. rubra W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on Rd. to Arcata Reservoir, near Jolly Giant parking lot. Comment
  JEPS43158  Oxalis corniculata Lincoln Constance 1934-5-29 719 Humboldt upper Look Prairie; South Fork of Eel River, Bull Creek Region 365 Comment
  UC1103424  Oxalis oregana Joseph P. Tracy 1901-4-7 1006 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC45275  Oxalis oregana Brad Klipfel 1973-4-28 6 Humboldt Along Korbel to Maple Creek County Rd. Comment
  UC1103427  Oxalis oregana Joseph P. Tracy 1927-5-15 8044 Humboldt Sugar Bowl Mt., on rd between Willow Creek and Hoopa Northern Coast Ranges 457 Comment
  UC170010  Oxalis oregana Harley P. Chandler 1901-6-30 1188 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  UCD111002  Oxalis pilosa R. N. Raynor 1935-1 s.n. Humboldt Humboldt County. Comment
  POM204618  Panicum acuminatum var. acuminatum A. S. Hitchcock 1915-7-13 527 Humboldt Eureka Comment
  UC535745  Panicum capillare Eleanor Armstrong 1147 Humboldt Richardson Grove Comment
  UCD89396  Panicum capillare A. H. Christensen 1916-10-1 s.n. Humboldt Humboldt County. Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  POM366049  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  CAS-BOT-BC259727  Paspalum distichum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC98738  Paxistima myrsinites Cara Witte 2008-5-26 662 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  UC1199003  Paxistima myrsinites Joseph P. Tracy 1913-7-20 4373 Humboldt near summit between Redwood Creek and Three Creeks (above Three Creeks); Northern Coast Ranges 1066 Comment
  UC169090  Pedicularis densiflora Mrs. M. H. Manning 1902-2 Humboldt near Hupa Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  JEPS10724  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  JEPS27746  Pedicularis groenlandica Joseph P. Tracy 1925-7-5 7180 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC179970  Pedicularis groenlandica Joseph P. Tracy 1914-7-4 4533 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges 1066 Comment
  UCD137663  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt Mount Lassic area a little south of Blue Ridge; Mule Slide. Comment
  HSC100393  Pellaea ornithopus Carl C. Marshall Apr 1887 361 Humboldt Supply Creek, a mile or two from Hoopa. Comment
  UC1198046  Penstemon anguineus Joseph P. Tracy 1933-7-27 12869 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS7213  Penstemon anguineus Lincoln Constance 1934-6-19 905 Humboldt Grasshopper Pk near summit South Fork Eel River, Bull Creek Region 914 Comment
  RSA20780  Penstemon anguineus Carl B. Wolf 1937-7-13 9244 Humboldt North Coast Range, 11 mi E of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  HSC73629  Penstemon azureus M. A. Baker 1980-7-23 3146 Humboldt Near Orleans Mtn. 1859 Comment
  HSC100913  Penstemon jaffrayanus Carl C. Marshall Jun 1886 275 Humboldt Trail E of Hoopa. Comment
  HSC39932  Penstemon laetus subsp. sagittatus J. O. Sawyer 1970-6-25 2293 Humboldt 1646 Comment
  JEPS11631  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432 Comment
  HSC56080  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-31 11768 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  SEINET3360831 Image available Penstemon newberryi subsp. berryi Joseph P. Tracy 16-19 July 1930 8953 Humboldt South Fork Mountain; along summit near Blake lookout. 1707 Comment
  JEPS15454  Penstemon newberryi var. berryi Hilda W. Grinnell 1932-7-9 2 Humboldt McKay Camp South Fork Mountain Comment
  HSC59451  Penstemon newberryi var. berryi Richard Runyon 1979-6-27 40 Humboldt NW of Trinity Summit Station, W of ridge trail 1829 Comment
  HSC76259  Penstemon parvulus Denis Kearns 1981-6-24 31 Humboldt Near Cedar Camp 1219 Comment
  UC1011931  Penstemon rattanii F. W. Pennell and J. P. Tracy 1940-7-8 26105 Humboldt Kneeland 670 Comment
  HSC99556  Perideridia gairdneri subsp. borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 221 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC98965  Perideridia oregana Cara Witte 2008-7-28 943 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  CAS-BOT-BC330380  Petasites frigidus var. palmatus M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N of Garberville Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  HSC91906  Petasites frigidus var. palmatus E. Mackey 1986-7-10 Humboldt Patrick's Point State Park; near restroom on the road to Wedding Rock Comment
  SBBG8658  Petasites frigidus var. palmatus H. and M. Dearing 1933-5-16 1927 Humboldt near Weott Comment
  SEINET11809913  Petasites palmatus Unknown 1937-1 13350 Humboldt near Trinidad Comment
  JEPS81041  Phacelia bolanderi J. P. Smith and Steve Selva 1970-6-14 3821 a Humboldt along CA 96 Whitmore Creek 152 Comment
  HSC99465  Phacelia heterophylla subsp. virgata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 119 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA167317  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt Rock exposure between serpentine rock pile and Ashfield Butte. Kneeland Prarie. 762 Comment
  HSC91880  Phacelia malvifolia E. Mackey 1987-9-5 Humboldt Patrick's Point State Park, along the trail to the beach Comment
  JEPS1158  Phacelia mutabilis Joseph P. Tracy 1932-7-12 10432 Humboldt Corral Prairie Trinity Summit 1584 Comment
  BLMAR532  Phacelia nemoralis subsp. nemoralis Jennifer Wheeler 2009-6-23 532 Humboldt King range, On Paradise Ridge road Comment
  UCD89189  Phalaris minor A. H. Murphy 1951-6-6 s.n. Humboldt W Roscoe at Upper Mattole. Comment
  HSC98094  Philadelphus lewisii Cara Witte 2007-7-11 484 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  SBBG2732  Philadelphus lewisii H. and M. Dearing 1939-6-23 3693 Humboldt 30 mi E of Arcata Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  UC34058  Phleum alpinum J. P. Tracy 1901-5-30 1106 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC526853  Phragmites australis Joseph P. Tracy 1934-6-18 13226 Humboldt at Railroad Station Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC18712  Physocarpus capitatus C. B. Wolf 1927-8-30 1227 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  UC1198698  Physocarpus capitatus Joseph P. Tracy 1912-7-4 3721 Humboldt near Hydesville 60 Comment
  CAS-BOT-BC73441  Picea sitchensis William R. Dudley 1899-6-28 s.n. Humboldt Humboldt Bay peninsula opposite Eureka. Comment
  CAS-BOT-BC73443  Picea sitchensis Doris K. Kildale 1927-5-14 3201 Humboldt Big Lagoon Comment
  CAS-BOT-BC78290  Pinus attenuata Carl B. Wolf 1937-8-13 9240 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  CAS-BOT-BC78377  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt 2 miles north of Samoa Comment
  UCSB10482  Pinus contorta Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point, north of Trinidad Comment
  OBI36538  Pinus jeffreyi David J. Keil 1983-7-2 17315 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll rd below Horse Mtn Summit Rd Comment
  HSC98813  Pinus monticola Cara Witte 2008-7-7 835 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, Forest Service Roads 6N36 and 6N38. 1415 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1196925  Pinus ponderosa Joseph P. Tracy 1926-6-27 7678 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC104330  Piperia candida James Regan, Humboldt Redwood Co., LLC 2010-7-8 26 Humboldt Top of Thompson Creek, Larabee area 610 Comment
  RSA273410  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt Ca. 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  UC13527  Piperia elegans Chesnut and Drew 1888-7-10 Humboldt Jarnnigan's Jarnigan's Comment
  UC1196420  Piperia elongata Joseph P. Tracy 1948-8-22 18100 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  RSA273298  Piperia transversa J. D. Ackerman 1974-8-13 404 Humboldt Ca. 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  JEPS79898  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC34541  Pityopus californicus Rudolf W. Becking 1971-9-24 Humboldt HSC School Forest Freshwater. Bulk Collection 21 Comment
  HSC48718  Pityopus californicus M. A. Baker 1979-6-8 802 Humboldt 200 yds. towards ocean from George J. Yams memorial Grove on James Irvine Trail. Bulk Collection 165 Comment
  POM126348  Plagiobothrys reticulatus 1909-6-13 22989 .75 Humboldt Blue Lake 30 Comment
  UC526820  Plagiobothrys reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  UC668232  Plagiobothrys reticulatus Joseph P. Tracy 1938-6-9 15890 Humboldt top of ridge 3 mi w Harris 914 Comment
  JEPS60982  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1909-5-2 2960 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  UC526813  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  HSC16830  Plantago erecta D. B. Bader 1963-3-15 28 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC28045  Plantago erecta Harley P. Chandler May 1901 1137 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UCR37555  Plantago erecta L. P. Janeway 1983-5-1 257 Humboldt Northern Coast, North Spit (Samoa Peninsula). Sand dunes west of Samoa Rd and north of Coast Guard Station 6 Comment
  HSC38396  Plantago erecta J. D. Ackerman 1975-6-10 459 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC28010  Plantago lanceolata J. Burtt Davy 1899-6-16 5553 Humboldt near Scotia; North Coast Ranges Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  RSA245522  Plantago lanceolata Larry E. DeBuhr 1973-4-23 988 Humboldt Richardson Grove Redwood State Park. Comment
  HSC16858  Plantago maritima D. E. Anderson 1961-9-13 1818 Humboldt Comment
  HSC26448  Plantago maritima T. O. Osborne 1970-5-17 4 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC154021  Plantago subnuda J. P. Tracy 1906-6-17 2493 Humboldt immediate vicinity Eureka 0 Comment
  UC1733682  Plantago subnuda Kay H. Beach, Frank Gould 1940-5-5 483 Humboldt north of Eureka along roadside; with Plantago major and Plantago lanceolata. Comment
  HSC34285  Platanthera dilatata var. leucostachys Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC36625  Platanthera dilatata var. leucostachys J. D. Ackerman 1975-7-11 539 Humboldt South end of Big Lagoon, near the boat ramp Comment
  UC845458  Platanthera hyperborea var. gracilis Milo S. Baker 1926-1 51 -1926 Humboldt South Fork Mountain South Fork Mountain (eastern Humboldt County, Forest Road 4 1/2 mi n highway) Comment
  UC1409180  Platanthera leucostachys Robert F. Thorne and P. Everett 1965-8-7 35172 Humboldt s end Big Lagoon 1 Comment
  UC1196418  Platanthera sparsiflora Joseph P. Tracy 1932-7-16 10631 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  RSA178584  Platanthera sparsiflora Joseph P. Tracy 1950-7-2 18964 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  HSC16795  Platystemon californicus R. J. Vernimen 1963-5-11 53 Humboldt 1/2 mi. off the Samoa Rd., behind the Georgia Pacific dump, 7 1/2 mi. SW of Arcata Comment
  JEPS51633  Platystemon californicus Joseph P. Tracy 1866-4-4 Humboldt Eureka Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  HSC35030  Plectritis congesta Thomas W. Nelson, James Nelson 1975-5-24 1842 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC59486  Plectritis congesta M. A. Ericksen 1979-4-29 239 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC21691  Plectritis congesta subsp. brachystemon Jack Rockwell 1962-5-4 51 Humboldt E of road along stream bank. 549 Comment
  HSC48927  Pleuricospora fimbriolata M. A. Ericksen 1979-5-15 292 Humboldt 7 mi. up Eye See Rd. S of Orleans, off State Routh 96. Bulk Collection 163 Comment
  HSC90190  Pleuropogon refractus Larry Levine 1991-4-27 4911 Humboldt Maple Creek, L.W. Shatz Tree Farm Comment
  UC1151675  Pleuropogon refractus A. H. Murphy 1951-6-25 72 Humboldt 1 mi e of Snow Camp (8 mi ene of Kneeland) Comment
  UC180496  Poa annua Joseph P. Tracy 1914-5-14 4460 Humboldt Fort Seward; North Coast Ranges 121 Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  UC525631  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon; North Coast Region 6 Comment
  UCD90512  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC10698  Poa douglasii J. W. Johnson 1962-6-4 1426 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UCD91134  Poa howellii Al Murphy 1949-6-8 s.n. Humboldt W.O. Perry 1/2 mile below house on ranch road. Comment
  UCD91135  Poa howellii A. H. Murphy 1950-5-10 s.n. Humboldt E. M. Cottrell Ranch, on Roth Road. Comment
  CAS-BOT-BC255849  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  UC1103184  Poa kelloggii J. P. Tracy 1901-6-16 1151 Humboldt immediate vicinity Eureka 0 Comment
  HSC104392  Poa kelloggii J. Kalt, Z. Mendoza 1996-6-11 Humboldt Prairie Creek Redwoods Stae Park; 0.25 mi. SW of Elk Prairie Campground Comment
  SEINET10855127  Poa kelloggii Joseph P. Tracy 1911-6-4 Tracy 3219 Humboldt Along Little River Humboldt County 5 miles from the coast. Comment
  SEINET10855123  Poa macrantha Huron H. Smith 1911-1 Smith 3852 A Humboldt Comment
  UCD91845  Poa pratensis Les Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  UCD91934  Poa pratensis A. H. Murphy 1947-6-10 s.n. Humboldt Fulton's Ranch, Bald Mtn. ca. 7 miles east of Blue Lake. Comment
  UCD91935  Poa pratensis A. H. Murphy 1951-4-19 11 Humboldt Tooby and Prior Ranch, 2 miles south of Blocksburg. Comment
  HSC10786  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 18 Humboldt Tooby and Prior Ranch, Blocksberg. 457 Comment
  UC180500  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4120 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC1145117  Poa trivialis Joseph P. Tracy 1937-6-6 15330 Humboldt Ferndale 15 Comment
  CAS-BOT-BC244206  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  SBBG93447  Polygala californica H. P. Chandler -Jun-1901 1328 Humboldt Hupa [Hoopa] Indian Reservation 152 Comment
  JEPS27112  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA21671  Polygala cornuta var. cornuta Carl B. Wolf 1937-8-13 9224 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New Road towards Trinity summit. 1220 Comment
  SEINET10537775  Polygonum Mary Susan Taylor 1990-8-22 Taylor 6081 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SEINET3405786 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17887 Humboldt Trinity Summit, Near Box Camp, in open fir timber 1524 Comment
  UC672982  Polygonum hydropiper Joseph P. Tracy 1927-10-8 8386 Humboldt Boyes Ranch Prairie Creek 91 Comment
  UC175823  Polygonum lapathifolium Joseph P. Tracy 1912-10-20 4008 Humboldt Alton Northern Coast Region (bed of dried-up slough) 30 Comment
  HSC37575  Polygonum paronychia J. D. Ackerman 1975-6-10 455 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  SEINET2153798  Polygonum paronychia K. T. Harper 2002-1 2002 -2 Humboldt Trinidad Beach. Comment
  UCD100508  Polygonum paronychia Linda M. Barker 1976-5-13 1487 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1198095  Polygonum parryi Joseph P. Tracy 1912-7-31 3910 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (on nw slope of mt., along streamlet) 1066 Comment
  UC1101120  Polygonum persicaria Malcolm A. Nobs and S. Galen Smith 1949-8-9 1233 Humboldt Town of Blue Lake; marshy pond on s side Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 Comment
  HSC98684  Polygonum sawatchense subsp. sawatchense Cara Witte 2007-6-20 312 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  SEINET3404067 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  HSC45868  Polypodium glycyrrhiza J. P. Smith 1971-10-6 4984 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC39970  Polypodium glycyrrhiza Kurt Hippen, Tom Duebendorfer Humboldt Off Dowes Prairie Rd. 0.25 mi. up Strawberry Cr. Comment
  JEPS33247  Polypodium glycyrrhiza Lincoln Constance 1934-5-31 748 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  RSA183501  Polypodium glycyrrhiza H. S. Logsdon 1964-5-13 20 Humboldt 4.0 miles northeast of Orick at Boye s Prairie 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
  UCSB29329  Polypodium glycyrrhiza Phelps, M. 1972-3-22 Humboldt 1000 yds. east of Whitehom turnoff, along Shelter Cove Rd. 304 Comment
  HSC75433  Polypodium hesperium J. O. Sawyer, M. A. Erickson 1979-7-15 3412 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  CAS-BOT-BC72086  Polypodium scouleri Doris K. Kildale 1926-7-22 2412 Humboldt near Canyon Park Comment
  HSC1121  Polypodium scouleri J. R. Good 1964-5-13 48 Humboldt N 0.25 mi. from end of Lanpheres Rd. on sand dune Comment
  RSA137268  Polypodium scouleri I. L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  UCD91206  Polypogon maritimus Joseph P. Tracy 1918-7-1 4967 Humboldt Holmes Flat. Along Eel River from South Fork to Scotia. 60 Comment
  HSC79387  Polypogon monspeliensis Kenneth Clark 1979-7-1 459 Humboldt Shelter Cove. One beach at base of cliffs; first reef of Point Delgada headlands. 5 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
  HSC55170  Polystichum munitum Gilbert Muth 1979-8-1 12166 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC93265  Polystichum munitum Gordon Leppig 1998-3-11 716 Humboldt Redwood Park, near Jolly Giant Cr. 91 Comment
  HSC95887  Polystichum munitum Will Ferrand 2002-4-20 26 Humboldt 9 mi. E of int. of West End Rd. and Warren Cr. Rd. 67 Comment
  UC812661  Polystichum munitum George Neville Jones 1926-3-22 8671 Humboldt near Garberville Comment
  HSC7226  Populus trichocarpa R. E. Thill 1965-4-24 18 Humboldt 100 yds. from Town & Country Trailer Park beside Mad River Comment
  CAS-BOT-BC267145  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13588 Humboldt S Fork of Eel River, midway between Miranda and Garberville Comment
  RSA54124  Potamogeton natans Henry M. Pollard 1946-8-16 s.n. Humboldt Near Camp Creek, Orleans region. Comment
  HSC36293  Potamogeton nodosus James K. Griswold 1974-5-18 Humboldt Westend Rd., across from Humboldt Flakeboard Comment
  HSC62825  Potamogeton nodosus J. M. DiTomaso 1979-4-21 892 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  JEPS42952  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  HSC96466  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 638 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  CAS-BOT-BC143081  Potentilla anserina subsp. pacifica Malcom A. Nobs; S. Galen Smith 1949-8-3 1161 Humboldt 1 mile south of Fields Landing, Eel River Valley Comment
  UC1586954  Potentilla drummondii Juha Pykala and D. H. Norris 1987-6-11 1593 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  HSC63880  Potentilla drummondii M. A. Baker 1979-6-27 922 Humboldt Edge of Hoopa Indian Reservation Comment
  CAS-BOT-BC158495  Potentilla gracilis var. gracilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC73152  Prosartes hookeri M. A. Baker 1980-5-18 1303 Humboldt Near Black Mtn. 1006 Comment
  HSC97528  Prosartes hookeri Frances Reuss Harmon 2001-3-31 15 Humboldt Six Rivers National Forest, Gray Falls picnic area Comment
  HSC15484  Prosartes smithii W. R. Brigham 1962-5-20 16 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC31554  Prunella vulgaris Glenn McGourty 1974-5-11 44 Humboldt Along Maple Creek Rd. Comment
  HSC59239  Prunella vulgaris Clark L. Miller 1978-5-13 1130 Humboldt Comment
  SEINET13947064 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2083 Humboldt 1 mi E of Forest Glen; 2400 ft alt., T29E, R8E, SEC19 732 Comment
  HSC39157  Prunella vulgaris subsp. lanceolata D. E. Anderson, J. P. Smith 1971-6-28 - 1266 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC56433  Prunella vulgaris subsp. lanceolata Griswold, Butler 1979-7-12 7145 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA134596  Prunella vulgaris var. lanceolata Percy C. Everett, E. K. Balls 1959-10-25 23961 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  UC1124437  Prunella vulgaris var. lanceolata H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quad. Comment
  RSA430228  Prunella vulgaris var. lanceolata G. F. Orr 1963-8-15 s.n. Humboldt Patrick Point State Park, near Trinidad Comment
  UC1321003  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 Humboldt s Weott (Burlington Residence Area and Campground, Humboldt Redwoods State Park); Humboldt Redwoods State Park Comment
  CAS-BOT-BC159986  Prunus emarginata Doris K. Kildale 1925-8-17 1228 Humboldt Trinity Summit 1917 Comment
  RSA46690  Prunus virginiana var. demissa Doris K. Kildale 1938-6-5 15388 Humboldt Horse Mountain Comment
  CAS-BOT-BC356656  Pseudognaphalium californicum Joseph P. Tracy 1938-6-20 15971 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC357602  Pseudognaphalium stramineum Carl B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  HSC37672  Pseudognaphalium stramineum R. Sutherland 1976-8-19 8 .19876 Humboldt 259 Comment
  HSC57047  Pseudognaphalium thermale Overton, Butler 1979-7-24 9696 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC582516  Pseudognaphalium thermale Joseph P. Tracy 1935-7-31 14388 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC80110  Pseudotsuga menziesii Doris K. Kildale 1926-11-14 2859 Humboldt Redwood Creek at Berry's 289 Comment
  HSC40003  Pseudotsuga menziesii var. menziesii Linda M. Barker 1976-9-3 1689 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC55105  Pseudotsuga menziesii var. menziesii G. L. Clifton 1979-7-31 11847 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC55157  Pseudotsuga menziesii var. menziesii Gilbert Muth 1979-8-1 12110 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC76294  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-6 74 Humboldt Near Mosquito Lake 1256 Comment
  HSC79439  Pseudotsuga menziesii var. menziesii Kenneth Clark 1980-11-28 1053 Humboldt Above Point No Pass, throughout Shelter Cove 305 Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  UC502903  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1932-3-20 9782 Humboldt Trinidad Trinidad 60 Comment
  HSC40124  Pteridium aquilinum var. pubescens Thomas W. Nelson, James Nelson 1976-7-28 3073 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  UC32693  Pyrola asarifolia Chestnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  HSC48681  Pyrola crypta Brad Klipfel 1973-7-31 244 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74286  Pyrola dentata M. A. Baker 1980-7-11 2780 Humboldt Near Red Mtn. 1341 Comment
  HSC98084  Pyrola dentata Cara Witte 2007-7-10 474 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  RSA0080453  Pyrola picta C. B. Wolf 1937-8-13 9259 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  UC405495  Quercus chrysolepis P. E. Goddard 1907-6-16 122 b Humboldt Van Duzen Comment
  RSA47117  Quercus chrysolepis var. nana Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. Road. 793 Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC35716  Quercus garryana Thomas W. Nelson 1975-10-12 2233 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC73544  Quercus garryana Gail Newton 1980-7-14 1469 Humboldt Near Last Chance Ridge. 1219 Comment
  POM270132  Quercus garryana var. garryana Lyman Benson 1929-7-11 1758 Humboldt North of Garberville about 10 miles. Comment
  UCSB1172  Quercus garryana var. garryana Muller, Cornelius 1954-6-21 Humboldt 7 mi. ESE of Mad River, Summit of South Fork Mtn., on road to Forest Glen Comment
  CAS-BOT-BC105160  Quercus kelloggii H. E. McMinn 1922-8-5 330 Humboldt Mad River Comment
  CAS-BOT-BC105171  Quercus kelloggii Carl D. Duncan 1920-9-27 s.n. Humboldt Top of ridge forming western rim of Hoopa Valley Comment
  HSC99009  Quercus kelloggii Cara Witte 2008-7-1 785 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  HSC102199  Quercus sadleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1113 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC104536  Quercus vacciniifolia Doris K. Kildale 1925-8-18 1220 Humboldt Trinity Summit 1828 Comment
  HSC41254  Quercus vacciniifolia Brad Klipfel 1974-6-25 444 Humboldt Horse Mtn. Comment
  UCD47426  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; 1950 Comment
  UC275586  Quercus wislizeni Joseph P. Tracy 1923-10-14 6578 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1196259  Ranunculus alismifolius Joseph P. Tracy 1912-7-31 3905 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC162340  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1911-7-10 3486 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  HSC45060  Ranunculus californicus var. californicus R. Sutherland 1978-4-24 10 .24478 Humboldt Gravel slide of road cut 323 Comment
  UC1103012  Ranunculus flammula Joseph P. Tracy 1936-6-28 15023 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC180239  Ranunculus flammula Joseph P. Tracy 1914-9-6 4614 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC668065  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka; vernal pool 45 Comment
  HSC55312  Ranunculus flammula var. ovalis Griswold, Butler 1979-7-11 6988 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1196232  Ranunculus occidentalis Joseph P. Tracy 1934-6-27 13263 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  HSC98685  Ranunculus occidentalis var. occidentalis Cara Witte 2008-6-7 685 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  SEINET6908793  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1196249  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy 1901-6-10 1123 Humboldt Immediate vicinity of Eureka 0 Comment
  JEPS79961  Ranunculus parviflorus Joseph P. Tracy 1927-5-21 8067 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC18181  Ranunculus repens J. C. Reppas 1963-4-11 36 Humboldt 820 Fickle Hill Rd. Comment
  RSA554594  Ranunculus repens Walter Wisura 1993-5-9 4912 Humboldt Hwy 255 W of Arcata. Comment
  RSA670129  Ranunculus sardous J. M. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Road Comment
  HSC55295  Ranunculus uncinatus Griswold, Butler 1979-7-10 6337 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC162791  Ranunculus uncinatus J. P. Tracy 1906-4-22 2416 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196262  Ranunculus uncinatus J. P. Tracy 1900-5-30 828 Humboldt Forest Park Eureka 0 Comment
  HSC12337  Raphanus sativus Steve Dorei 1970-10-26 115 Humboldt Arcata, South G st. Comment
  CAS-BOT-BC55834  Rhamnus C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  RSA7813  Rhamnus purshiana Doris K. Kildale 1928-7-29 5925 Humboldt Mouth of Bear River at Capetown Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  SBBG5558  Rhododendron occidentale M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC175739  Rhododendron occidentale Joseph P. Tracy 1912-4-21 3573 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC200388  Rhododendron occidentale var. paludosum Doris K. Kildale 1927-6-26 3589 Humboldt Patrick's [Patricks] Point Comment
  CAS-BOT-BC433145  Ribes Doris K. Kildale 1928-7-1 5306 Humboldt French Camp on Orick-Martin's Ferry road 853 Comment
  HSC103208  Ribes binominatum Jade Paget-Seekins 2010-7-5 37 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC59630  Ribes bracteosum J. P. Smith 1971-10-9 5018 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  CAS-BOT-BC176804  Ribes laxiflorum Harley P. Chandler 1901-5-1 1202 Humboldt Humboldt Bay 30 Comment
  HSC40559  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-5-23 2523 Humboldt SW facing slopes 1666 Comment
  HSC48833  Ribes lobbii Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 46 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  CAS-BOT-BC206034  Ribes menziesii Alice Eastwood 1907-4-21 13 Humboldt Port Trinidad Comment
  UC1541331  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality) Comment
  RSA0021780  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad. [label says Mendocino but should be Humboldt Co.] Comment
  UC1198933  Ribes menziesii var. menziesii Joseph P. Tracy 1924-3-30 6636 Humboldt 3 miles west of Bridgeville; Northern Coast Ranges. 228 Comment
  JEPS49186  Ribes roezlii W. L. Jepson 1902-6-19 1889 Humboldt near Garberville; Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  UC1563693  Ribes roezlii Barbara Ertter with Thomas J. Delendick 1987-5-16 6938 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  CAS-BOT-BC198869  Ribes roezlii var. amictum Alice Eastwood 1939-3-19 18898 Humboldt Bolling Grove 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
  UC667062  Ribes roezlii var. cruentum Joseph P. Tracy 1933-7-11 12695 Humboldt Grouse Mountain 1524 Comment
  HSC97476  Ribes roezlii var. roezlii Cara Witte 2007-5-23 101 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC212523  Ribes sanguineum L. R. Abrams; R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon Comment
  HSC20339  Ribes sanguineum Jack Rockwell 1962-5-4 7 Humboldt S side of Hwy 427 Comment
  HSC34626  Ribes sanguineum Pamela Bruce 1975-4-8 1 Humboldt 0.5 mi. N of School Rd. on Washington Ave. Comment
  CAS-BOT-BC144684  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-3-25 1624 Humboldt Liscom Hill. lower Mad River 30 Comment
  HSC103217  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-14 3 Humboldt McKinleyville, west end of Hiller Park. 10 Comment
  HSC89543  Ribes sanguineum var. glutinosum M. Roantree 1985-5-7 41 Humboldt SW side of Trinidad Head, along trail Comment
  CDA25580  Ribes sanguineum var. sanguineum Gordon Leppig 1998-6-1 875 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  CAS-BOT-BC173992  Ribes viscosissimum J. H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  CHSC97983  Ribes viscosissimum April A. Allard; Gregory D. O'Connell 2005-6-15 13 Humboldt NE of Grouse Mtn. Roadside. 5339 Comment
  HSC103129  Ribes viscosissimum M. Mesler 2009-7-31 813 Humboldt South Fork Mtn. FS 1, 9.7 north of intersection with 4N12 1738 Comment
  HSC13753  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2870 Humboldt 3 mi. E of E Fork of Willow Creek Comment
  HSC26800  Romanzoffia californica Thomas W. Nelson 1971-4-24 404 Humboldt Willow Creek Comment
  POM265891  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2879 Humboldt 3 miles east of East Fork of Willow Creek. Comment
  RSA95496  Romanzoffia californica L. S. Rose 1954-4-24 54015 Humboldt Trinidad Head. Comment
  UC161585  Rorippa curvisiliqua Joseph P. Tracy 1909-6-13 2992 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  UC154495  Rosa Harley P. Chandler June, 1901 1334 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC902153  Rosa Joseph P. Tracy 1947-8-24 17889 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  HSC19624  Rosa gymnocarpa Lincoln Constance 1934-6-2 791 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  OBI35864  Rosa gymnocarpa David J. Keil 1983-7-2 17330 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC1199039  Rosa gymnocarpa Joseph P. Tracy 1947-8-24 17888 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC914721  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt along bank of creek between Blue Lake and Willow Creek; Redwood Creek Comment
  CAS-BOT-BC146833  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  LA208225  Rosa nutkana H. E. Parks; S. T. Parks June 1937 24021 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC148340  Rosa pisocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4763 Humboldt Dinsmore's Comment
  UC154494  Rosa pisocarpa Harley P. Chandler June 1901 1544 Humboldt Klamath River North Coast Ranges 457 Comment
  UC902156  Rosa pisocarpa Joseph P. Tracy 1949-8-7 18436 Humboldt near Box Camp (along stream); Trinity Summit 1524 Comment
  HSC40998  Rubus leucodermis J. O. Sawyer 1975-10-17 2708 Humboldt Along Big Hill Rd. 915 Comment
  HSC57010  Rubus leucodermis Overton, Butler 1979-7-24 9603 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC183625  Rubus leucodermis Joseph P. Tracy 1913-6-14 4127 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC147243  Rubus parviflorus Doris K. Kildale 1926-5-14 3196 Humboldt Big Lagoon Comment
  HSC89428  Rubus parviflorus P. A. Daly 1984-5-6 1 Humboldt Trinidad Head 61 Comment
  POM271063  Rubus parviflorus Lyman D. Benson 1928-7-8 387 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  SEINET4948924  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  POM117571  Rubus parviflorus var. velutinus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC19688  Rubus spectabilis S. J. Hawks 1965-4-3 16 Humboldt Luffenholtz Beach Comment
  HSC96515  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Big Lagoon County Park. 3 Comment
  UC1199052  Rubus ursinus Joseph P. Tracy 1935-5-25 13827 Humboldt along headwaters Larrabee Creek (Blocksburg); along headwaters of Larrabee Creek 457 Comment
  CAS-BOT-BC363201  Rudbeckia occidentalis Doris K. Kildale 1925-8-15 1173 a Humboldt Elk Horn Prairie - Trinity Summit 1539 Comment
  CAS-BOT-BC421933  Rumex acetosella Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC70235  Rumex acetosella M. A. Baker 1980-6-8 1898 Humboldt Near Buck Flat. 1554 Comment
  HSC17576  Rumex acetosella W. F. Nickel 1965-4-22 Humboldt HSC campus behind biological science building Comment
  HSC64435  Rumex acetosella J. P. Smith, Steve Selva 1970-6-30 4101 Humboldt Comment
  UC249658  Rumex maritimus Joseph P. Tracy 1921-8-7 5867 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  RSA755178  Rumex obtusifolius Robert F. Thorne, Percy C. Everett 1965-8-8 35261 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UC1225779  Rumex occidentalis Joseph P. Tracy 1948-9-12 18208 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC38074  Rupertia physodes Thomas W. Nelson, James Nelson 1976-5-30 2633 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC454100  Ruppia cirrhosa Robert F. Thorne; P. Everett 1965-8-9 35340 Humboldt Along Hwy. 101 about 3 mi. N of Eureka 1 Comment
  CAS-BOT-BC454157  Ruppia maritima Malcom A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  SEINET5337061  Sagina decumbens subsp. occidentalis J. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay Comment
  UC205455  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown; Northern Coast Ranges, around Humboldt Bay, Freshwater Creek 30 Comment
  RSA246919  Salicornia virginica R. F. Thorne, P. Everett 1965-8-7 35205 Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC103810  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01237 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  POM361045  Salix exigua Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  UC490573  Salix exigua Joseph P. Tracy 1932-7-31 10295 Humboldt mouth of Larrabee Creek Eel R.; Northern Coast Ranges 60 Comment
  UC526710  Salix exigua H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges 152 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  HSC100648  Salix flavescens Carl C. Marshall Mar 1887 390 Humboldt Humboldt Hill. Comment
  CAS-BOT-BC107706  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  CAS-BOT-BC107715  Salix hookeriana Doris K. Kildale 1926-6-29 2238 Humboldt Mouth of Mad River Comment
  CAS-BOT-BC107722  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna, on bank of Eel River 15 Comment
  CAS-BOT-BC107734  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  CAS-BOT-BC107735  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  CHSC9658  Salix hookeriana E. L. Smith 1971-8-17 1028 Humboldt Between highway and beach at Trinidad. Comment
  HSC20065  Salix hookeriana J. W. Johnson 1962-4-29 1296 Humboldt Hollow 10, W.M. Lanphere Farm, Samoa Peninsula, Arcata Comment
  HSC40860  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS12908  Salix hookeriana Joseph P. Tracy 1927-3-13 7844 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  JEPS12914  Salix hookeriana H. E. Parks and Joseph P. Tracy 1927-4-23 7921 Humboldt Big Lagoon; Northern Coast Ranges 6 Comment
  JEPS13088  Salix hookeriana Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp 1402 Comment
  LA208762  Salix hookeriana Harold E.; Susan T. 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM161065  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt Near Laren Frost place on Kneeland Road. near Kneeland Prairie. 610 Comment
  SBBG27480  Salix hookeriana H. E. Parks -Aug-1931 Humboldt Little River Lagoon Comment
  SBBG59110  Salix hookeriana H. E. Parks -Aug-1931 1053 Humboldt Little River Lagoon Comment
  UC1173586  Salix hookeriana Joseph P. Tracy 1936-8-17 15159 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1196543  Salix hookeriana Joseph P. Tracy 1948-4-11 17971 Humboldt Eel R. at Camp Grant; Eel R. 48 Comment
  UC1196553  Salix hookeriana Joseph P. Tracy 1935-3-3 13714 Humboldt mouth of Mad R. 6 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC146208  Salix hookeriana J. P. Tracy 1904-4-3 2011 Humboldt Immediate vicinity of Eureka 0 Comment
  UC176702  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (ocean beach) Comment
  UC469118  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt Little River Northern Coast Ranges (mouth, edge of sand dunes) 6 Comment
  UC469129  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470443  Salix hookeriana Joseph P. Tracy 1931-9-19 9676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481397  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC512003  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 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
  UC519342  Salix hookeriana Joseph P. Tracy 1933-10-8 13087 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  POM218954  Salix laevigata H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  HSC37877  Salix lasiandra Thomas W. Nelson 1976-3-22 2279 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  UC481296  Salix lasiandra subsp. lasiandra Harold E. Parks and Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity R. (banks of Willow Creek); Willow Creek 150 Comment
  UC492483  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-5-12 1150 Humboldt near bridge at mouth of Maple Creek (Big Lagoon); Big Lagoon Comment
  UC492486  Salix lasiandra subsp. lasiandra Harold E. Parks 1932-4-16 1099 Humboldt Ferndale ca. 16 km. from mouth of Eel R.; , Ferndale Comment
  CAS-BOT-BC125226  Salix lasiandra var. lasiandra Jim Davis 1933-4-25 3 Humboldt Around Eureka Comment
  CAS-BOT-BC128199  Salix lasiandra var. lasiandra Doris K. Kildale 1927-3-27 3000 Humboldt Fernbridge - Eel River 10 Comment
  CAS-BOT-BC107603  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  JEPS12917  Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12946  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS12956  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. Comment
  UC1225927  Salix lasiolepis Joseph P. Tracy 1947-6-28 17755 Humboldt Bridgeville Van Duzen River 198 Comment
  UC469408  Salix lasiolepis Joseph P. Tracy 1927-3-27 7869 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC471109  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481182  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC490543  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; Northern Coast Ranges, Mattole River 15 Comment
  UC504026  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC506387  Salix lasiolepis Joseph P. Tracy 1932-8-21 10356 Humboldt lower w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, , Three Cabins 457 Comment
  UC506397  Salix lasiolepis Joseph P. Tracy 1933-3-19 10934 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UCD111588  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01323 Humboldt West slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway. 762 Comment
  CAS-BOT-BC107291  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01247 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107419  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-28 1691 Humboldt Redwood Creek - near Berry's Comment
  HSC20064  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt Humboldt/Trinity Cos., below Willow Creek 152 Comment
  POM218957  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  UC1196574  Salix melanopsis Joseph P. Tracy 1931-5-16 9615 Humboldt vicinity of Garberville (S. Fork Eel R. at Redway); North Coast Ranges, S. Fork Eel R., Redway 121 Comment
  UC1196638  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC481168  Salix melanopsis Harold E. Parks 1931-8-25 1060 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481293  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt between Alton and Carlotta (Van Duzen R.); Van Duzen R. 15 Comment
  UC481309  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 973 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC490561  Salix melanopsis Joseph P. Tracy 1932-5-1 9876 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC512006  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1232 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  SEINET12003513  Salix piperi J. P. Tracy 1950-1 19366 Humboldt On foothills of the Cape Ridge, 0.5 mi S of town, 1 mi inland from Cape Mendocino 61 Comment
  CAS-BOT-BC129130  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake, Mad River 15 Comment
  CAS-BOT-BC129166  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1219 Humboldt Near the coast, 1 mile north of Samoa, approximately at sea level. Comment
  HSC20079  Salix scouleriana J. P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 610 Comment
  POM219695  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge. Van Duzen River. 450 Comment
  SJSU172  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen R 448 Comment
  UC1196704  Salix scouleriana Joseph P. Tracy 1933-3-26 10942 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC54926  Salix scouleriana J. P. Tracy 1901-2-3 991 Humboldt immediate vicinity Eureka 0 Comment
  UCR142834  Salix scouleriana H. E. Parks 1931-5-14 0957 Humboldt North Coast, Little Larabee Bridge, Van Duzen River, 'alt. 450 m 195 Comment
  CAS-BOT-BC128963  Salix sitchensis W. J. Ferlatte 1967-6-13 1119 Humboldt Cranell Coastal valley 3 Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90465  Salix sitchensis Jean Hanson 1980-4-12 33 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC90745  Salix sitchensis Jean Hanson 1980-3-8 20 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  UC303029  Salix sitchensis Joseph P. Tracy 1926-2-21 7358 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC518896  Salix sitchensis Jim Davis Apr 25 1933-Apr 27 1933 6 Humboldt around Eureka Eureka Comment
  HSC20133  Salix tracyi J. P. Tracy 1933-5-14 12178 Humboldt Trinity River Valley, mouth of Willow Creek 152 Comment
  UCLA69890  Salvia dorrii var. pilosa unknown Humboldt Harris Spring road 1828 Comment
  HSC44536  Sambucus nigra subsp. caerulea Brad Klipfel 1973-7-1 144 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC59500  Sambucus racemosa var. racemosa M. A. Ericksen 1979-4-6 202 Humboldt 880 Central Ave. McKinleyville. Comment
  HSC75561  Sambucus racemosa var. racemosa N. D. Dennis 1965-4-2 3 Humboldt Corner of Del Norte and L St., Eureka. Comment
  UCSB22664  Sambucus racemosa var. racemosa Jensen, Karen 1965-4-14 Humboldt Along Tompkin's Hill Rd., 2.7 mi. from Hwy. 101 turnoff, northeast of Fortuna 91 Comment
  CAS-BOT-BC235128  Sambucus racemosa var. racemosa Duncan Dunning 1921-10-2 37285 Humboldt Bulwinkle [Bullwinkle] Comment
  UC1199042  Sanguisorba annua Joseph P. Tracy 1936-6-17 14974 Humboldt at crossing road from Bridgeville to Trinity Co. Little Van Duzen River 713 Comment
  RSA183619  Sanguisorba minor D. E. Anderson 1965-5-1 3577 Humboldt Along Trinity River at Hoope. Comment
  HSC21616  Sanicula arctopoides D. E. Anderson 1962-3-25 1950 Humboldt 1/4 mi. N of Fairhaven Comment
  HSC86305  Sanicula arctopoides K. Berg, Mike Roantree 1983-5-15 472 Humboldt Samoa Peninsula Comment
  HSC37847  Sanicula crassicaulis Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  JEPS1012  Sanicula graveolens W. L. Jepson July 16 - 23, 1902 2046 Humboldt Trinity Summit 2133 Comment
  UC314594  Sanicula graveolens Joseph P. Tracy 1926-6-20 7648 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1197085  Sanicula laciniata Joseph P. Tracy 1923-6-20 6343 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC34957  Sanicula tuberosa Thomas W. Nelson 1975-5-24 1863 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC70234  Sanicula tuberosa M. A. Baker 1980-6-8 1896 Humboldt Near Buck Flat. 1554 Comment
  UC249630  Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt mouth of South Fork Trinity River; Northern Coast Ranges, South Fork Trinity River 152 Comment
  HSC55842  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-25 10795 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET8754002 Image available Scandix pecten-veneris Richard R. Halse 2015-1 9381 Humboldt Along U.S. Hwy. 101 ca. 2.5 miles southeast of Weott 123 Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  RSA366413  Schoenoplectus acutus var. acutus Joseph P. Tracy 1914-5-30 s.n. Humboldt North Coast, near Hydesville Comment
  HSC90687  Schoenoplectus americanus Gail Newton 1982-5-31 3562 Humboldt Elk River Wildlife Area, Eureka 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
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  SEINET4170940  Scirpus microcarpus Unknown 1914-9-13 4628 Humboldt At Eureka, Northern Coast Region 61 Comment
  JEPS63972  Scirpus microcarpus Lincoln Constance 1934-6-2 782 Humboldt wet sand below spring on s bank near mouth Bull Cr (Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River, s bank Bull Cr Comment
  JEPS75308  Scirpus tabernaemontani H. E. Parks and Joseph P. Tracy 1931-5-17 9421 Humboldt Lack Pond Trinity River Valley, Lack Pond (opposite Willow Creek) 152 Comment
  CAS-BOT-BC517417  Scoliopus bigelovii Alice Eastwood; John Thomas Howell 1937-6-23 4778 Humboldt Near Dinsmores Comment
  SEINET12050497  Scoliopus bigelovii F. H. Utech 1988-1 88 -281 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, above Van Duzen River 800 Comment
  CHSC31329  Scrophularia californica Mark Stopher 1980-6-4 87 Humboldt Along roadside and along Elk River near Rte 101 bridge. 1 Comment
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC1222777  Scrophularia californica subsp. californica Joseph P. Tracy 1950-6-8 18752 Humboldt beach s of Cape Mendocino Comment
  HSC56459  Scutellaria antirrhinoides Griswold, Butler 1979-7-12 7236 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC577338  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC64137  Sedum laxum subsp. heckneri J. O. Sawyer, J. P. Smith, R. J. Cole 1977-7-2 3053 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  HSC74192  Sedum laxum subsp. heckneri M. A. Baker 1980-7-23 3134 Humboldt Near Orleans Mtn. 1859 Comment
  SD51705  Sedum laxum subsp. heckneri Joseph P. Tracy 1948-9-5 18190 Humboldt On rock ledge at top of ridge, 1.0 mile south of Grizzly Camp. 1370 Comment
  HSC57647  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-25 10817 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC59850  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-27 927 Humboldt Head of Grogan Hole, at the head of Oregon Creek Comment
  JEPS48046  Sedum radiatum W. L. Jepson 1902-6-20 1890 Humboldt Ft. Seward Ranch Ridge Ft. Seward Ranch ridge, Mail Ridge (= Mail Ridge, Rocky points) 1066 Comment
  SEINET4076756  Sedum radiatum O. M. Clark 1932-1 1295 Humboldt South Eureka. Comment
  CAS-BOT-BC63827  Sedum spathulifolium L. R. Abrams 1922-6-25 8294 Humboldt Bluffs north of Big Lagoon. Comment
  JEPS40925  Sedum spathulifolium Paul C. Hutchison 1962-7-13 2085 Humboldt mouth of Little River, Hwy 101, N end of bridge Trinidad Beach State Park Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  HSC76352  Sedum spathulifolium var. spathulifolium Denis Kearns 1981-7-23 380 Humboldt Near Whiteys Peak 732 Comment
  OBI79041  Selaginella rupestris Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel, in dense shade. 61 Comment
  JEPS37086  Senecio glomeratus Lincoln Constance 1934-6-25 926 Humboldt 4 mi n Dyerville (and <4 mi n?> of n boundary of Humboldt Redwood Park, on Redwood Highway); South Fork Eel River, Bull Creek Region, Englewood Comment
  HSC81584  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1980-5-25 5262 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  HSC82545  Senecio integerrimus var. major Thomas W. Nelson 1979-7-11 5003 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1199245  Senecio integerrimus var. major Joseph P. Tracy 1933-6-13 12585 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges 1219 Comment
  UC545823  Senecio minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  UCD135607  Senecio minimus R. Tofsrud 1949-7-1 s.n. Humboldt Ferndale, Wildcat grade. Comment
  UCD135618  Senecio minimus S. W. Cosby 1921-9-27 s.n. Humboldt south of Ferndale. Comment
  UCD135620  Senecio minimus Gilfillan 1921-8-16 s.n. Humboldt Eureka. Comment
  UC128739  Senecio sylvaticus Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5446 Humboldt near Elk Prairie; north-western California Comment
  HSC36579  Senecio sylvaticus Thomas W. Nelson, James Nelson 1975-9-3 2197 Humboldt Above the junction of Maple Creek-Kneeland Rd. Comment
  HSC6128  Senecio triangularis William J. Ferlatte, B. D. Rogers, D. E. Anderson 1966-6-8 2090 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  HSC76415  Senecio triangularis Denis Kearns 1981-7-23 431 Humboldt Near Whiteys Peak. 1524 Comment
  UC1199234  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 A Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC1070215  Senecio vulgaris H. L. Person 1932-8-20 18486 Humboldt Eureka Inn Eureka, Eureka Inn Comment
  CAS-BOT-BC364523  Senecio vulgaris Doris K. Kildale 1925-12-6 1821 Humboldt Orick near mouth of Redwood Creek Comment
  HSC34610  Senecio vulgaris A. Montalvo 1975-5-24 273 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC95584  Senecio vulgaris Andrea Pickart 2002-3-14 4 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  HSC98210  Sequoia sempervirens Gordon Leppig 1999-7-9 1189 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC275474  Sequoia sempervirens Joseph P. Tracy 1925-8-9 7281 Humboldt South Fork Eel River at Salmon Creek; Northern Coast Ranges, South Fork Eel River, Salmon Creek 152 Comment
  UC55657  Sequoia sempervirens J. P. Tracy 1901-8-11 1277 Humboldt immediate vicinity of Eureka 0 Comment
  UCR142864  Sequoia sempervirens C. B. Wolf 1944-10-25 11469 Humboldt North Coast, Eel River Valley, Redwood Hwy, 2.4 mi south of Scotia 61 Comment
  JEPS12650  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  UCR39801  Sherardia arvensis L. P. Janeway 1984-5-13 775 Humboldt Along the Kneeland/Bridgeville Road c. 15 mi. east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek 610 Comment
  RSA46485  Sherardia arvensis Doris K. Kildale 1925-6-7 691 Humboldt [Unspecified] Comment
  SEINET6993447  Sherardia arvensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  RSA75596  Sidalcea malachroides Albert M. Vollmer, B. Beane 1951-6-11 s.n. Humboldt Yager Creek road, on way to Carlotta Comment
  UC1222507  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  UC35225  Sidalcea malachroides Chestnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  UC1222504  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18738 Humboldt 7 mi s Ferndale (Bear River Ridge); , s of Ferndale 609 Comment
  UC1299199  Sidalcea malviflora subsp. patula Freed W. Hoffman 1946-5-20 963 Humboldt near Capetown; near Capetown Comment
  UC176968  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3598 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  UC902191  Sidalcea malviflora subsp. patula Harold E. Parks May 1949 Humboldt Bear River Ridge 609 Comment
  HSC103725  Silene bolanderi M. R. Mesler, C. Wilson 2010-6-18 825 Humboldt Along Hwy 36 near pmm 32.53 771 Comment
  UC1198353  Silene californica Joseph P. Tracy 1938-7-7 16040 1/2 Humboldt Grouse Mountain 1524 Comment
  HSC74456  Silene campanulata Gail Newton 1980-8-10 2011 Humboldt Near Blake Mtn. 1798 Comment
  HSC32481  Silene campanulata subsp. glandulosa Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  RSA135349  Silene campanulata subsp. glandulosa Volney Rattan 1883 Humboldt Hoopa Valley. Comment
  RSA53804  Silene campanulata subsp. glandulosa H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  CAS-BOT-BC389056  Silene laciniata subsp. californica Carl B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  UC465640  Silene latifolia subsp. alba Mrs. M. H. Manning 1901-1 Humboldt near Hupa (Hoopa Valley); near Hupa, Hoopa Valley Comment
  JEPS53885  Sisymbrium altissimum W. L. Jepson 1932-8-8 16530 Humboldt hill above Weott Comment
  UC492253  Sisymbrium altissimum Joseph P. Tracy 1932-5-17 10090 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC1197803  Smilacina racemosa Joseph P. Tracy 1927-6-12 8150 Humboldt Horse Mountain; below top of mt. 1280 Comment
  SEINET3888098  Smilacina stellata var. sessilifolia Thomas Nelson, James Nelson 1975-5-24 1844 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UC577350  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC1196153  Solanum umbelliferum Joseph P. Tracy 1934-6-20 13240 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC365440  Solidago elongata Carl B. Wolf 1927-8-2 809 Humboldt Along the hills near the ocean 1 mile south of Orick Comment
  HSC12415  Solidago elongata D. Santana 1970-10-18 41 Humboldt 11th and B St. Comment
  HSC57904  Solidago elongata Gilbert Muth 1979-7-31 11501 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC76050  Solidago elongata Overton, Butler 1979-8-2 12539 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1199322  Solidago elongata Joseph P. Tracy 1935-9-1 14751 Humboldt mouth Larrabee Creek (on Eel River); Eel River, mouth of Larrabee Creek 60 Comment
  LA204243  Solidago lepida var. salebrosa S. T. Parks; H. E. Parks 1930-9-14 785 Humboldt North shore of Big Lagoon Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  HSC6179  Solidago velutina subsp. californica J. P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC673080  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16701 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  SBBG62991  Solidago velutina var. californica R. Hartwell 1938-8-4 Humboldt near Eureka Comment
  CAS-BOT-BC374426  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  HSC79453  Sonchus asper Kenneth Clark 1980-4-18 605 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  UC164789  Sonchus oleraceus J. P. Tracy 1903-8-2 1926 Humboldt immediate vicinity Eureka 0 Comment
  UCD136155  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC6224  Sonchus oleraceus J. W. Johnson 1961-8-17 1043 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC91903  Sonchus oleraceus E. Mackey 1986-11-2 Humboldt Patrick's Point State Park; by road to Palmer's Point Comment
  UC1222306  Sorbus californica Joseph P. Tracy 1951-6-14 19419 Humboldt Snow Camp Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  RSA21550  Sparganium angustifolium subsp. emersum Carl B. Wolf 1937-9-14 9354 Humboldt Town of Blue Lake. 15 Comment
  RSA246788  Sparganium angustifolium subsp. emersum Robert F. Thorne, Percy C. Everett 1965-8-9 35321 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA54125  Sparganium angustifolium subsp. emersum Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. 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
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC4241  Spergula arvensis S. R. Johnson 1965-3-14 2 Humboldt 1.5 mi N of Luffenholtz Beach Comment
  HSC68008  Spergula arvensis J. P. Smith 1970-6-7 3805 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC77898  Spergula arvensis R. D. Modafferi 1965-3-14 8 Humboldt 1.3 mi. S of Trinidad on old Hwy. 101 305 Comment
  RSA0097847  Spergularia macrotheca A. A. Heller 1923-7-9 13780 Humboldt Near Arcata. Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  CAS-BOT-BC390612  Spergularia rubra R. K. Gierisch; D. H. Esplin 1969-7-1 3536 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  CAS-BOT-BC149619  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  HSC19751  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  JEPS45013  Spiraea douglasii W. L. Jepson 1902-6-24 1924 Humboldt Eureka to Arcata Comment
  UC1199028  Spiraea douglasii Joseph P. Tracy 1927-8-22 8350 Humboldt Bald Mountain Northern Coast Ranges (near High Prairie) 1066 Comment
  JEPS64496  Spiranthes porrifolia Joseph P. Tracy 1916-6-19 4721 Humboldt Dobbyn Creek Northern Coast Ranges (swampy ground around a pond) 182 Comment
  JEPS62959  Stachys ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 15 Comment
  CHSC803  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  HSC99553  Stachys ajugoides var. rigida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 218 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS63030  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UCLA70846  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  JEPS63019  Stachys arvensis H. B. Tucker 1935-4-5 Humboldt Arcata Bottom; Arcata 9 Comment
  POM283271  Stachys bullata Lyman Benson 1928-7-10 s.n. Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  SD93024  Stachys chamissonis W. Bertsch 1953-7-30 230 Humboldt Highway 101, 5 miles north of Arcata. Comment
  UC668079  Stellaria borealis subsp. sitchana Joseph P. Tracy 1937-7-17 15443 Humboldt near Field's Landing (Still Ranch) 6 Comment
  UC1223445  Stellaria crispa Joseph P. Tracy 1950-7-15 19042 Humboldt near mouth of Raccoon Creek (Willow Creek vicinity, 1 mi ne of Patterson's Ranch); Willow Creek Comment
  UC162629  Stellaria crispa Joseph P. Tracy 1911-7-5 3312 Humboldt near mouth of Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC40427  Stellaria media Linda M. Barker 1976-2-22 1320 Humboldt 3 mi. W of Arcata Comment
  UC1103548  Stellaria media Joseph P. Tracy 1913-6-14 4124 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC4279  Stellaria media Jack Rockwell 1962-4-5 30 Humboldt N bank of Van Duzen River, E of Hwy. 101 Comment
  UC1198343  Stellaria nitens Joseph P. Tracy 1908-6 2737 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1197797  Stenanthium occidentale Joseph P. Tracy 1948-9-5 18172 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS6211  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Range); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  RSA254758  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch north of Dinsmore Comment
  UC205170  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1919-9-14 5187 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  CHSC111333  Stipa miliacea var. miliacea Barbara L. Wilson; Nick Otting 2012-7-3 17135 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM zone 10T, 430910 east, 443867 north. 76 Comment
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Nov 6 2015
  HSC99097  Streptanthus tortuosus var. orbiculatus Cara Witte 2007-5-31 152 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  RSA249439  Streptopus amplexifolius D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5606 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC102070  Suksdorfia ranunculifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 972 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56382  Symphoricarpos albus var. laevigatus Griswold, Butler 1979-7-11 6912 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC65140  Symphoricarpos albus var. laevigatus J. P. Smith 1971-10-9 5039 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS12881  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1939-8-20 16428 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC99168  Symphyotrichum chilense L. R. Abrams 1927-8-31 12056 Humboldt Marshes along highway between Eureka and Arcata Comment
  CHSC10151  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata. Along the sides of the Lanphere County Road by Mad River Slough. Comment
  CHSC68779  Symphyotrichum chilense Vernon H. Oswald 1997-6-5 8539 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  HSC96471  Symphyotrichum chilense Gordon Leppig 1997-6-19 455 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC100684  Synthyris reniformis var. cordata Carl C. Marshall Jan 1887 354 Humboldt Liscom's Hill. Comment
  CAS-BOT-BC376727  Tanacetum bipinnatum Doris K. Kildale 1925-7-2 912 Humboldt Table Bluff Comment
  HSC6246  Tanacetum bipinnatum S. J. Moore 1965-4-10 5 Humboldt Dry Lagoon State Park Comment
  RSA121874  Tanacetum camphoratum H. S. Yates 1936-6-16 5651 Humboldt 0.5 mile SW of Samoa. 6 Comment
  CHSC110732  Taraxacum erythrospermum Dean Wm. Taylor 2011-5-4 21112 Humboldt North Coast Ranges. Jepson Manual NCoR region. Alderpoinnt Road in the vicinity of the Snowline Fox Farm, vicinity of the road crossing of Knack Creek 341 Comment
  RSA167403  Taraxacum officinale Joseph P. Tracy 1948-5-15 s.n. Humboldt Trinity River at Willow creek Comment
  UC1222838  Taraxia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC1197068  Tauschia kelloggii Joseph P. Tracy 1936-6-17 14943 Humboldt Bridgeville 198 Comment
  POM299136  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon 762 Comment
  HSC56197  Tellima grandiflora Gilbert Muth 1979-8-1 12161 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC18237  Thalictrum polycarpum S. S. Stutz 1963-5-18 61 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC101049  Thermopsis robusta Lisa Hoover 1996-5-29 132 Humboldt Red Cap drainage 293 Comment
  UC1198809  Thlaspi montanum var. montanum Harold E. Parks and Joseph P. Tracy 1934-6-14 11029 Humboldt Horse Mt. 1402 Comment
  UC1586873  Thlaspi montanum var. montanum Juha Pykala and D. H. Norris 1987-5-19 710 Humboldt Horse Mountain Road at intersection with ski-lift; Horse Mountain Road 1400 Comment
  CAS-BOT-BC81304  Thuja plicata Belle Richardson Jackson 1939-9-15 s.n. Humboldt Trinity River, near Dutch Comment
  SBBG21852  Tiarella trifoliata var. unifoliata D. Myrick 1964-7-26 979 Humboldt Redwood Hwy 101 near Garberville 152 Comment
  CAS-BOT-BC436913  Tiarella trifoliata var. unifoliata Ira L. Wiggins 1930-7-22 4594 a Humboldt Redwood Creek between Blue Lake and Willow Creek Comment
  RSA12556  Tiarella trifoliata var. unifoliata Carl B. Wolf 1934-7-2 5883 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  RSA32652  Tiarella trifoliata var. unifoliata Doris K. Kildale 1925-6-28 833 Humboldt Lawrence Crk. Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  UC154080  Tolmiea diplomenziesii J. P. Tracy 1900-5-30 832 Humboldt immediate vicinity Eureka 0 Comment
  UC11947  Tolmiea diplomenziesii W. C. Blasdale Jun 1899 5887 Humboldt Weitchpec North Coast Ranges, Klamath River (on the Klamath River, opposite the mouth of the Trinity) Comment
  BLMAR634  Tonella tenella Jennifer Wheeler 2011-6-15 634 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  UCR3543  Torilis arvensis David Whistler, H. M. Whistler 1964-7-29 640729- 3 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  HSC44766  Torilis arvensis Maralyn O'Meara 1972-6-9 89 Humboldt Along bald Hills Rd. 16.4 mi. E of jct. with Hwy. 101 Comment
  JEPS14238  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petolia and Ocean) 152 Comment
  HSC58401  Torreyochloa pallida var. pauciflora Griswold, Butler 1979-7-11 7032 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC93749  Torreyochloa pallida var. pauciflora Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 792 Humboldt Arcata, Alder Grove Pond 18 Comment
  HSC95682  Toxicodendron diversilobum Steven Lee 2004-4-25 25 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  JEPS63941  Toxicodendron diversilobum Lincoln Constance 1934-5-24 644 Humboldt Bull Creek Region S. Fork Eel R., Bull Creek Region 121 Comment
  HSC98085  Tragopogon dubius Cara Witte 2007-7-3 400 Humboldt National Forest 1. 2 miles south from intersection with 5N04. 1561 Comment
  HSC14453  Trichostema laxum D. E. Anderson 1963-10-6 2877 Humboldt Mad River bed, across from Essex Junction. Comment
  RSA82198  Trichostema laxum F. W. Peirson 1926-7-13 7063 Humboldt Mad River, vicinity of Blue Lake. Comment
  HSC53982  Trichostema oblongum Griswold, Butler 1979-7-11 7057 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC562555  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC44771  Trientalis latifolia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3550 Humboldt Along north side of ridge between Bear and Blanket Creeks, unsurveyed section east of Sec. 25 1494 Comment
  HSC45274  Trientalis latifolia Brad Klipfel 1973-4-28 8 Humboldt Along Korbel to Maple Creek Rd., Canyon Creek Comment
  UC1197213  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1912-6-9 3668 Humboldt Alton Northern Coast Ranges Comment
  UC169303  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1912-6-9 3674 Humboldt Alton Northernb Coast Ranges, Humboldt Bay Comment
  UC1197494  Trifolium barbigerum J. P. Tracy 1910-5-22 3138 Humboldt immediate vicinity Eureka 0 Comment
  UC16424  Trifolium barbigerum Harley P. Chandler May, 1901 1102 Humboldt Humboldt Bay; North Coast Ranges Comment
  UC33445  Trifolium barbigerum Joseph Burtt Davy and Walter C. Blasdale 1899-5 5684 Humboldt Hoopa Mtn Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC45121  Trifolium bifidum R. Sutherland 1978-5-19 17 .19578 Humboldt 183 Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC1197200  Trifolium ciliolatum Joseph P. Tracy 1914-5-14 4455 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC71060  Trifolium dichotomum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3394 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  HSC89573  Trifolium dubium M. Roantree 1985-5-15 46 Humboldt E side of Trinidad Head. Comment
  UC1130015  Trifolium eriocephalum var. eriocephalum H. S. Yates 1936-6-17 5720 Humboldt Burr Valley South Fork Pk. quad 1036 Comment
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Feb 21 2013
  UC16712  Trifolium eriocephalum var. eriocephalum J. Burtt Davy 1899-6-7 5385 Humboldt near Harris; Northern Coast Ranges Comment
  UC1223464  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1949-8-4 18415 Humboldt toward Trinity Summit (Mud Springs, on rd from Hoopa) 1341 Comment
  UC594253  Trifolium eriocephalum var. eriocephalum S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3412 Humboldt Burr Valley Buck Mtn 1036 Comment
  HSC100533  Trifolium filipes Carl C. Marshall May 1886 411 Humboldt Dobbyn's Creek. Comment
  UC495735  Trifolium fucatum Joseph P. Tracy 1927-5-8 7992 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC1223455  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt 1 mi e Cape Mendocino; Cape Ridge 152 Comment
  UCD109058  Trifolium fucatum W. A. Williams 1951-6-14 s.n. Humboldt Ocean house. Comment
  UCSB30618  Trifolium fucatum Edwards, David 1974-8-1 Humboldt Near W bank of Mad River (in bed), N of its jet. with Puter Creek, ca. 300 yds., S of fish hatchery, ca. 2 mi. S.W. of Korbel Comment
  UC906701  Trifolium gracilentum Harold E. Parks and Joseph P. Tracy 1942-5-16 11549 Humboldt vicinity Garberville 152 Comment
  UC573520  Trifolium hybridum H. S. Yates 1936-6-18 5724 Humboldt 2 mi s of mouth of Littler River Eureka quad 3 Comment
  HSC31441  Trifolium longipes D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5559 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC58641  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11637 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM214887  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Kneeland Prairie. Comment
  UC1223360  Trifolium macraei Joseph P. Tracy 1936-5-30 14841 Humboldt Samoa Sand Dunes Comment
  UC495662  Trifolium macraei Joseph P. Tracy 1932-5-10 9935 Humboldt Bear River edge Northern Coast Ranges 609 Comment
  UC1223319  Trifolium obtusiflorum Joseph P. Tracy 1948-6-13 18060 Humboldt Garberville 243 Comment
  UC1223330  Trifolium pratense Joseph P. Tracy 1941-8-23 16995 Humboldt Eureka Comment
  RSA349641  Trifolium pratense Unspecified 1936-8-18 4815 Humboldt South o f Eureka Comment
  HSC45167  Trifolium repens R. Sutherland 1978-5-16 8 .16578 Humboldt 157 Comment
  RSA259546  Trifolium subterraneum David Ferranti 1974-5-6 s.n. Humboldt 4360 1/2 Union Street Comment
  UCD109495  Trifolium variegatum var. major W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  JEPS4140  Trifolium variegatum var. melananthum Joseph P. Tracy 1918-7-3 4990 Humboldt Shelter Cove North Coast Ranges 15 Comment
  UC1197560  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-5-8 7993 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1223532  Trifolium variegatum var. variegatum Joseph P. Tracy 1950-6-29 18938 Humboldt 6 mi se Arcata (Fickle Hill) Comment
  UC249716  Trifolium willdenovii Joseph P. Tracy 1921-5-30 5490 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC495688  Trifolium willdenovii Joseph P. Tracy 1932-5-10 9944 Humboldt hillsideds between Petrolia and ocean Northern Coast Ranges 152 Comment
  HSC103851  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1851 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC631060  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Ranges 0 Comment
  RSA639406  Trifolium wormskioldii Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 b Humboldt Samoa Peninsula. 3 Comment
  UC1197038  Trifolium wormskioldii Joseph P. Tracy 1913-6-25 4336 Humboldt Dinsmore's Ranch Northern Coast Ranges (in valley of Van Duzen River opposite Buck Mtn) 762 Comment
  CAS-BOT-BC451806  Triglochin maritima L. R. Abrams 1918-6-12 7086 Humboldt Eureka Comment
  HSC36439  Triglochin maritima John Rehling 1974-7-8 8 Humboldt Big Lagoon Bog Comment
  HSC59493  Triglochin maritima M. A. Ericksen 1979-4-21 214 Humboldt Big Lagoon County Beach Comment
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  HSC15715  Trillium albidum D. W. Snell 1964-4-18 46 Humboldt Mad River bottom 3 mi. N of Blue Lake Comment
  HSC15690  Trillium kurabayashii H. S. Logsdon 1964-4-11 8 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC96776  Trillium kurabayashii M. Mesler 2006-5-25 603 Humboldt Bald Hills FS, 18.8 mi. SE of Hwy. 101 915 Comment
  HSC41231  Trillium ovatum Brad Klipfel 1974-5-8 320 Humboldt Horse Mountain Comment
  CAS-BOT-BC133398  Trillium ovatum Volney Rattan 1879-6-1 s.n. Humboldt Trail to Hoopa Comment
  HSC34647  Trillium ovatum Thomas Anthony 1975-4-7 1 Humboldt 0.5 mi. N of Myers Flat on Avenue of the Giants Comment
  SEINET12810619  Trillium ovatum John D. Freeman, Ruth R. Freeman 1967-1 Humboldt Comment
  UC175281  Trillium ovatum Joseph P. Tracy 1913-6-26 4350 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R., Dinsmore's Ra 762 Comment
  JEPS10700  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1932-5-1 9888 Humboldt vicinity Garberville 121 Comment
  UC146241  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1906-6-10 2477 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC168994  Triphysaria pusilla Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5390 Humboldt Hubbard's Station; North Coast Ranges, Hubbard's Station Comment
  UC1222443  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1935-5-25 13851 Humboldt Fort Seward 106 Comment
  UC902248  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1944-5-14 17469 Humboldt Eureka 6 Comment
  JEPS26252  Triphysaria versicolor subsp. versicolor J. P. Tracy 1900-6-25 863 Humboldt immediate vicinity Eureka; immed vicinity of Eureka 0 Comment
  CAS-BOT-BC199620  Trisetum canescens Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  RSA10052  Trisetum canescens Joseph P. Tracy 1926-5-22 7502 Humboldt Northern Coast Ranges, Prairie Creek. 152 Comment
  RSA129125  Trisetum canescens H. S. Yates 1936-6-17 5704 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  RSA44544  Trisetum canescens Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans, Humboldt County Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC526695  Trisetum canescens Joseph P. Tracy 1927-6-19 8194 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC9982  Trisetum cernuum W. F. Cartwright 1965-4-23 65 Humboldt 3 mi. E of Arcata on Fickle Hill Rd. Comment
  UC180486  Trisetum cernuum Joseph P. Tracy 1914-7-5 4546 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  UC526694  Trisetum cernuum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9001 Humboldt McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET200769  Triteleia bridgesii Joseph P. Tracy 1949-6-25 18345 Humboldt Trinity Summit Mud Springs in serpentine area 1341 Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  CAS-BOT-BC519143  Triteleia hyacinthina M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville Comment
  JEPS64202  Triteleia hyacinthina Lincoln Constance 1934-6-25 930 Humboldt Englewood, across road from Collin's Englewood Campground, on e side of road South Fork Eel River, Bull Creek Region Comment
  UC15024  Triteleia hyacinthina Joseph Burtt Davy 1899-6-13 5491 Humboldt Camp Grant to Pepperwood Comment
  CAS-BOT-BC526352  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  HSC79549  Triteleia laxa Kenneth Clark 1980-6-14 667 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  IRVC27661  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Immediate vicinity of Eureka; near Ryan's Slough Hill. 0 Comment
  UC15046  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Ryan's Slough Hill Eureka vicinity 0 Comment
  HSC94180  Triticum aestivum Gordon Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, E of the Community Center parking lot 3 Comment
  HSC72050  Tropaeolum majus J. M. DiTomaso 1979-5-10 947 Humboldt Corner of 13th and Union St., Arcata. Comment
  CAS-BOT-BC85851  Tsuga heterophylla P. C. Everett; E. K. Balls 1959-10-25 23963 Humboldt 22 mi. W. from Willow Creek along U.S. Hwy. 299 to Arcata 579 Comment
  HSC28303  Tsuga heterophylla Gary S. Lester 1973-12-8 63 Humboldt Comment
  OBI33131  Tsuga heterophylla David J. Keil 1983-7-2 17305 Humboldt Freeway exit from US 101 at Patrick's Point Comment
  BLMAR141  Umbellularia californica Donald Hazlett 1994-6-7 141 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC14491  Umbellularia californica T. W. Beck 1963-3-17 15 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  HSC37411  Urtica dioica subsp. gracilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 507 Humboldt Along Lost Man Creek. 38 Comment
  HSC40006  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC403929  Urtica dioica subsp. gracilis Dennis W. Woodland 1970-8-12 1614 Humboldt 1 mile S. of Redwood River and Orick along U.S. 101 in ditch on west side of road Comment
  CAS-BOT-BC199317  Vaccinium ovatum C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River Bridge Comment
  HSC100479  Vaccinium ovatum Carl C. Marshall Mar 1886 140 Humboldt Near coast everywhere. Comment
  HSC31471  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC7912  Vaccinium ovatum W. R. Rogers 1966-5-1 225 Humboldt Mill Creek Comment
  JEPS58741  Vaccinium ovatum Mr. and Mrs. George Parrish 1930-5-21 Humboldt Trinidad Comment
  JEPS66687  Vaccinium ovatum Lincoln Constance 1934-5-31 758 Humboldt from w boundary of Park to Grasshopper Peak (Squaw Creek) rd. (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  UC1197766  Vaccinium ovatum Joseph P. Tracy 1924-5-4 6672 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UCD166888  Vaccinium ovatum Colleen Rossier 2016-9-16 6 Humboldt In vicinity of Bark Shanty Road, plot Bark Shanty #2. 427 Comment
  CAS-BOT-BC199410  Vaccinium parvifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC37332  Vaccinium parvifolium Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 477 Humboldt Along Lost Man Creek. 38 Comment
  RSA471151  Vaccinium parvifolium H. E. McMinn 1931-6-29 2543 b Humboldt Orick to Requa. Comment
  HSC55023  Vaccinium uliginosum Overton, Butler 1979-7-31 11435 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC562350  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1932-7-14 10564 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA114992  Valeriana sitchensis subsp. scouleri E. K. Balls, Lee W. Lenz 1955-5-15 20732 Humboldt 6.4 miles SW of Willow Creek along US Hwy 299 to Arcata. 457 Comment
  UC673215  Valeriana sitchensis subsp. scouleri Lincoln Constance, Reed C. Rollins 1942-5-11 2867 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  HSC56160  Valeriana sitchensis subsp. sitchensis G. L. Clifton, Griswold 1979-8-1 12035 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC76055  Vancouveria hexandra Harley P. Chandler 1901-5-1 1162 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC3377  Vancouveria hexandra E. W. Styskel 1963-5-16 23 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC37713  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 373 Humboldt Van Duzen Co. Park, off Hwy. 36, 6 mi. E of Carlotta 61 Comment
  HSC76284  Vancouveria planipetala Teresa Prendusi 1981-7-9 189 Humboldt Near Cedar Camp. 1268 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  JEPS33032  Vancouveria planipetala Lincoln Constance 1934-5-23 603 Humboldt s slope of mt. above Look Prairie Bull Creek area (Bull Creek area); , above Look Prairie 365 Comment
  HSC32234  Velezia rigida J. O. Sawyer 1970-6-24 2248 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  RSA12516  Veratrum insolitum Carl B. Wolf 1934-7-3 5920 Humboldt 9.5 miles form Martins Ferry on Orick Road. 305 Comment
  SEINET3992208  Veratrum insolitum Unknown 1948-9-12 18213 Humboldt 1 mi. W. of Box Camp 1372 Comment
  UC582591  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC21173  Verbascum thapsus H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC39719  Verbena lasiostachys D. E. Anderson, J. P. Smith 1971-6-28 - 1258 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC585977  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-7-3 12632 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA20851  Veronica americana Carl B. Wolf 1937-6-18 8891 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 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
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC102112  Veronica serpyllifolia subsp. humifusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1016 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC37952  Vicia americana var. americana Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  JEPS29848  Vicia benghalensis Rimo Bacigalupi, and L. Heckard, J. Weiler 1961-6-23 7838 Humboldt about 1 mi w Carlotta (about 0.5 mi e of Hydesville) Comment
  HSC104455  Vicia hirsuta Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 29 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC48379  Vicia hirsuta Mark Flippo 1978-4-18 38 Humboldt Mckinleyville, Hill Top Rd. Comment
  POM161054  Vicia sativa Joseph P. Tracy 1926-5-2 7433 Humboldt Trinity River Valley, near the south fork. Comment
  HSC15254  Vicia sativa subsp. nigra D. B. Bader 1963-5-1 34 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  HSC15255  Vicia sativa subsp. nigra W. F. Nickel 1965-4-28 Humboldt On S side of Biological Science Building, near baseball field Comment
  UC169306  Vicia tetrasperma Joseph P. Tracy 1912-7-7 3739 Humboldt Eureka; Northern Coast Region 0 Comment
  UCR71484  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt North Coast Range, Hwy 299 roadside c. 8 mi. east of Arcata, 9.5 mi. west of Lord Ellis summit Comment
  CAS-BOT-BC263951  Viola adunca L. B. Kildale 1926-3-26 1656 Humboldt Dillon Road between Beatrice and Field's Landing Comment
  HSC21772  Viola adunca T. M. Mingo May 1965 Humboldt W of College Cove Comment
  RSA46714  Viola adunca Doris K. Kildale 1926-3-20 1537 Humboldt Big Lagoon. Comment
  RSA77779  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt West slope of Coast Range back of Orick. Comment
  HSC34157  Viola glabella Linda M. Barker 1974-5-11 178 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UC902116  Viola glabella Joseph P. Tracy 1942-6-23 17242 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UCR138885  Viola glabella E. Bower, S. Marubayashi, E. Perry 1997-5-10 53 Humboldt Titlow Hill Road, 1.5 mi past intersection with Hwy 299 975 Comment
  UC1198458  Viola glabella Joseph P. Tracy 1913-6-20 4222 Humboldt in valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC78920  Viola hallii Jimerson, Imper 1982-5-17 1440 Humboldt Near Ashfield Ridge. 822 Comment
  HSC96958  Viola hallii Ryoko Ito, Shauna McDonald 2007-6-4 2 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299; off FS road NF1, on FS road 5N27 1433 Comment
  UC1103558  Viola macloskeyi Joseph P. Tracy 1947-6-26 17744 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC270152  Viola palustris H. E. Parks; Joseph P. Tracy 1927-4-23 7919 Humboldt Big Lagoon, in bog 3 Comment
  HSC90167  Viola praemorsa subsp. praemorsa Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 61 Humboldt Titlow Hill Rd., 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  JEPS50377  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Northern Coast Ranges, Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  HSC39623  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2727 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC12233  Viola sempervirens Gary J. Stebbins 1970-2-2 3 Humboldt In Big Lagoon Park 2.7 mi. W of U.S. 101 Comment
  SEINET11978067  Viola sempervirens Unknown 1936-1 113398 Humboldt Comment
  UC1762512  Viola sheltonii Milo S. Baker 11510 Humboldt South Fork Mountains Comment
  UC183751  Viola sheltonii Joseph P. Tracy 1913-6-17 4187 Humboldt near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1762495  Viola sheltonii Milo S. Baker 1946-6-14 11491 Humboldt South Fork Mtn. 1524 Comment
  JEPS40249  Vitis californica W. L. Jepson 1921-9-11 9463 Humboldt DeVoy Flat South Fork Eel River (on river bank) Comment
  SEINET7297974 Image available Vulpia bromoides Joseph P. Tracy 1948-1 18065 Humboldt Trinidad 3 Comment
  CHSC19486  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca 1-3 miles west of Hoopa. Comment
  HSC9925  Vulpia myuros D. C. Juve 1964-5-14 Humboldt Camp Tish-Tang, Campbell Cr. Ranger Station, Hwy. 96. Comment
  UC196967  Vulpia myuros var. hirsuta Joseph P. Tracy 1915-5-23 4640 Humboldt Eureka; Northern Coast Region 0 Comment
  UC525655  Vulpia myuros var. hirsuta Joseph P. Tracy 1933-6-13 12598 Humboldt w of Hoopa (near summit on road to Bair's); Hoopa Mountain 1066 Comment
  CAS-BOT-BC128818  Whipplea modesta M. S. Jussel 1931-5-2 91 Humboldt Sylvandale, 8 miles n. of Garberville Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  HSC67508  Whipplea modesta J. P. Smith, J. O. Sawyer 1973-5-12 6705 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC58331  Wyethia angustifolia Overton, Butler 1979-8-2 12632 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC128618  Wyethia angustifolia P. E. Goddard Jul 1910 Humboldt Hupa Valley Comment
  UC1096426  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt 11 mi northeast of Bridgeville near Six Rivers National Forest Comment
  BLMAR442  Xanthium spinosum Jennifer Anthony-Wheeler 2008-10-1 442 Humboldt Humboldt County, growing on Collenberg dairy, Mad River Road 7 Comment
  UC1134688  Xerophyllum tenax A. E. Wieslander 1931-5-19 208 Humboldt near Orleans (Klamath National Forest); Klamath National Forest Comment
  UC1198219  Xerophyllum tenax Joseph P. Tracy 1933-8-6 12954 Humboldt French Camp Ridge 1066 Comment
  HSC8424  Zeltnera muehlenbergii D. E. Anderson 1961-9-2 1765 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC74387  Zigadenus micranthus M. A. Baker 1980-6-28 2505 Humboldt Near Mad River Buttes 1445 Comment
  UC302170  Zigadenus micranthus var. micranthus Joseph P. Tracy 1925-5-30 7041 Humboldt at summit leading to Laribee Valley; Northern Coast Ranges, McClellan Mountain 822 Comment
  UCD150381  Zostera marina William Anderson and H. Mc. 1964-8-4 s.n. Humboldt Eel River Mouth. Comment



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