Search Results — 2000 specimen records retrieved (1392 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC54029  Abies concolor Griswold, Butler 1979-7-12 7209 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC78054  Abies grandis L. R. Abrams 1916-7-18 6032 Humboldt Arcata to Trinidad Comment
  CDA19007  Abies grandis Lubinski 2000-10-5 PDR P 070106 Humboldt North Coast Ranges; along U.S.F.S Rd 1, in the vicinity of Blue Lake. 0 Comment
  HSC45921  Abies grandis Jerome Peterson 1978-5-28 28 Humboldt HSC Campus, NW of Founders Hall Comment
  UCD134238  Abies grandis T. I. Storer 1931-7-1 2225 Humboldt Coast. Comment
  HSC73071  Abies procera M. A. Baker 1980-7-22 3063 Humboldt Near Salmon Mtn. 1820 Comment
  HSC33747  Abronia latifolia A. Montalvo 1975-5-24 286 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  BLMAR389  Abronia umbellata subsp. breviflora Jennifer Anthony-Wheeler 2004-10-10 389 Humboldt Samoa/manilla dunes, Due west of water line tower number77 3 Comment
  CAS-BOT-BC330545  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt McClellan Mt., 5 miles E. of Bridgeville 670 Comment
  UC1199016  Acer glabrum Joseph P. Tracy 1935-7-31 14394 Humboldt w side Devil's Backbone (barren rocky ridge connecting Trinity Summit with Salmon Summit); w side Devil's Backbone 1524 Comment
  HSC24100  Acer glabrum var. torreyi J. O. Sawyer 1971-6-14 2380 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  HSC99409  Acer glabrum var. torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 58 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CDA23775  Acer negundo var. californicum Jeanette N. Griffin 2008-8-28 s.n. Humboldt Ferndale 0 Comment
  CAS-BOT-BC28585  Achillea millefolium Doris Kildale Gillespie 1931-6-7 s.n. Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  CDA30207  Achillea millefolium M. K. Beyers, I. Shepardson 2009-9-13 255 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC81936  Achillea millefolium Thomas W. Nelson, Jane P. Nelson 1979-7-3 4957 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET11854568  Achillea millefolium J. P. Tracy 1947-1 17764 Humboldt Mouth of Little River Comment
  SFV18535  Achillea millefolium L. Hagenauer 2002-4-29 31 Humboldt Arcata. Path along McDaniel Slough leading to Humboldt Bay, V Street. Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  HSC56446  Achlys triphylla Griswold, Butler 1979-7-12 7196 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1152042  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt n side of Board Camp Mountain at extreme head of Redwood Creek Board Camp Mountain, Redwood Creek Comment
  UC526665  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10473 Humboldt Head of Brett Hole Klamath Mountains, Brett Hole 1828 Comment
  UC526759  Achnatherum occidentale subsp. californicum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9052 Humboldt near Blake lookout (along summit); Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC98304  Acmispon micranthus R. J. Vernimen 1963-4-27 37 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  CAS-BOT-BC418768  Aconogonon phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain 1524 Comment
  SEINET10473553  Adenocaulon bicolor Mary Merello 1993-6-19 Merello 660 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC164785  Adenocaulon bicolor J. P. Tracy 1901-6-2 1119 Humboldt immediate vicinity Eureka 0 Comment
  UC503063  Adiantum jordanii Joseph P. Tracy 1932-4-24 9812 Humboldt between Miranda and Redway (S Fork Eel River); North Coast Ranges 91 Comment
  JEPS40092  Aesculus californica Lincoln Constance 1934-5-24 640 Humboldt lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UC1222303  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt w side mouth of South Fork (near the South Fork); Trinity River Valley 182 Comment
  HSC54499  Agastache urticifolia G. L. Clifton, Griswold 1979-7-26 9358 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC479498  Ageratina occidentalis Marcus E. Jones, A. M. 1931-7-16 29137 Humboldt junction e of Arcata Comment
  RSA15581  Ageratina occidentalis Carl B. Wolf 1927-8-27 s.n. Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  UC165016  Ageratina occidentalis Joseph P. Tracy 1911-7-4 3300 Humboldt (tributary of Trinity River, Humboldt County) near its mouth Willow Creek 304 Comment
  SEINET202732 Image available Agoseris grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt Trinty River Valley at Willow Creek. 152 Comment
  UC1222935  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1951-6-24 19535 Humboldt Kneeland Prairie Kneeland Prairie 762 Comment
  UC1125462  Agoseris grandiflora var. grandiflora H. L. Person 1932-7-20 19460 Humboldt highway near Korbel; Eureka Quadrangle Comment
  UC1199117  Agoseris grandiflora var. grandiflora J. P. Tracy 1901-7-7 1215 Humboldt immediate vicinity of, on Eureka Streets Eureka 0 Comment
  UC1222928  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-15 19047 Humboldt 1 mi n Willow Creek; Trinity River Comment
  OBI6922  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1942-7-18 17276 Humboldt N end fo 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
  UC1199478  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 E Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  HSC32336  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5646 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  CHSC116250  Agrostis castellana Barbara L. Wilson; Nick Otting 2012-7-3 17134 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
  CAS-BOT-BC127288  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt Northern Coast Ranges. White Thorn Valley. 304 Comment
  CAS-BOT-BC127293  Agrostis exarata H. E. Parks 1935-6-1 5607 Humboldt Spruce Cove, Trinidad. Comment
  HSC8788  Agrostis exarata D. E. Anderson 1963-10-6 2882 Humboldt Mad River bars, across from Essex Junction. Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  JEPS75421  Agrostis exarata W. L. Jepson 1932-7-30 16451 Humboldt in redwood forest Bull Creek 121 Comment
  UC1103380  Agrostis exarata Joseph P. Tracy 1935-7-27 14282 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1103386  Agrostis exarata Joseph P. Tracy 1934-7-21 13478 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC526893  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt grassy slopes on lower foothills of Chaparral Mountain Northern Coast Ranges (vernal pond) 457 Comment
  HSC76547  Agrostis gigantea Teresa Prendusi 1981-7-23 341 Humboldt Near Black Mtn. 890 Comment
  CAS-BOT-BC139494  Agrostis hallii Doris K. Kildale 1927-6-25 3545 Humboldt Shelter Cove. Comment
  HSC68963  Agrostis hallii Jacqueline Greenleaf 1980-7-16 250 Humboldt Near Buck Mountain. 1250 Comment
  POM207005  Agrostis hallii Davy Blasdale 1899-05 5873 Humboldt Martins Ferry. Comment
Read comments Dec 1 2014
  RSA129593  Agrostis hallii H. S. Yates 1936-6-18 5737 Humboldt 1 mile NE of Orick 46 Comment
Read comments Nov 24 2011
  UC188841  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5880 Humboldt Martins Ferry Comment
  HSC8805  Agrostis oregonensis R. L. Jarvis 1962-2-9 3 Humboldt Big Lagoon marsh, S of Hwy 101. Comment
  CAS-BOT-BC138441  Aira caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  JEPS72938  Aira caryophyllea Lincoln Constance 1934-5-27 704 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  HSC8870  Aira praecox H. E. Parks 1938-6-20 24111 Humboldt Spruce Cove, Trinidad Comment
  RSA256299  Aira praecox J. R. Reeder, C. G. Reeder 1973-5-26 6186 Humboldt 2 miles S of Orick in Humboldt State Park, near Pacific Shore. Comment
  SEINET3917480  Aira praecox Paul Dryden 1975-5-24 203 Humboldt Samoa Dunes. Dunes off Samoa Blvd. across from the boat landing.; 0 Comment
  UC526677  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  HSC100396  Alisma plantago Carl C. Marshall Jun 1887 486 Humboldt In a swamp near Cox's Ranch, SE Humboldt. Comment
  SBBG88771  Alisma triviale A. Keedy 1988-9-18 9 Humboldt fresh water pond A, Arcata Salt Marsh Project, Humboldt Bay Comment
  SEINET12045750  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  UC666887  Allium amplectens Joseph P. Tracy 1936-6-17 14975 Humboldt Little Van Duzen River at highway crossin Little Van Duzen River 713 Comment
  HSC79065  Allium cratericola D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  HSC47990  Allium falcifolium B. Klipfel 1974-7-11 699 Humboldt Horse Mtn. Comment
  UCR45835  Allium falcifolium Thomas W. Nelson 1977-6-15 3446 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  CAS-BOT-BC135842  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5440 Humboldt Along branch road off Swayback Ridge Road ca. 1/2 mile east of junction - Six Rivers National Forest 1371 Comment
  CAS-BOT-BC135845  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-27 5947 Humboldt Humboldt-Trinity County line. Along low ridge northeast of small vernal pond at north base of Red Lassic - Six Rivers National Forest 1676 Comment
  HSC56339  Allium serra Griswold, Butler 1979-7-10 6224 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  CHSC61689  Allium unifolium Steven Webster 1986-4-12 10 Humboldt Ca. 3 mi s of Prairie creek State Park along Highway 101. 91 Comment
  CAS-BOT-BC476602  Allium unifolium Doris K. Kildale 1926-5-15 1971 Humboldt Fleener Creek. Comment
  UC176179  Allium unifolium Joseph P. Tracy 1913-6-10 4078 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC453428  Allotropa virgata Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek, near Orleans Comment
  UC1197955  Alnus rhombifolia Joseph P. Tracy 1923-1-14 6137 Humboldt Blue Lake Northern Coast Ranges, Mad River 30 Comment
  CAS-BOT-BC169547  Alnus rubra Joseph P. Tracy 1930-11-16 9255 Humboldt Alton, along Van Duzen River 30 Comment
  HSC12947  Alnus rubra Steve Dorei 1970-10-9 27 Humboldt Arcata, near NE entrance to Wildlife building on Humboldt State University campus Comment
  SEINET8670754 Image available Alnus rubra W. J. Hess, Stoynoff, N 1995-1 7294 Humboldt Comment
  UC184154  Alopecurus aequalis Joseph P. Tracy 1912-7-31 3904 Humboldt n.w. slope Buck Mt.; Northern Coast Ranges, Burr Valley, Buck Mt. 1066 Comment
  UCD55838  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt Buck Mountain, 3 miles south of Burr Valley. 1158 Comment
  CAS-BOT-BC138014  Alopecurus geniculatus Richard Walter Pohl 1963-6-3 9449 Humboldt Korbel. Comment
  UCD55896  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt in Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  SEINET201057  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  RSA167300  Ambrosia artemisiifolia Joseph P. Tracy 1950-8-20 19313 Humboldt Frank Graham's place. Trinity River Valley at Willow Creek. 152 Comment
  CAS-BOT-BC13701  Ambrosia chamissonis Ira L. Wiggins 1930-7-7 4673 Humboldt Near Samoa Comment
  HSC79544  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt 100 yards W of Deadman's Gulch 3 Comment
  UC204869  Ambrosia chamissonis Joseph P. Tracy 1918-7-1 4979 Humboldt 3 mi s, sw slopes Point of Cape; Cape Mendocino 3 Comment
  UCD170774  Ambrosia chamissonis Gordon Leppig 1998-5-25 786 Humboldt Big Lagoon State Park. Between ocean and Big Lagoon. 2 Comment
  HSC18527  Amelanchier alnifolia var. semiintegrifolia J. Sandborg, F. Sandborg May 1968 4 Humboldt Bluff Creek near Notice Creek 793 Comment
  UC154236  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-7-18 3014 Humboldt immediate vicinity Eureka 0 Comment
  HSC41466  Amelanchier pallida J. P. Smith, J. O. Sawyer 1973-5-12 6690 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UCD39988  Amelanchier utahensis Rodney Gale Myatt 1971-9-22 1196 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  HSC8843  Ammophila arenaria Paul Shields 1955-9-22 Humboldt 12 mi. NW Arcata Comment
  RSA86667  Ammophila arenaria F. W. Peirson 1941-7-29 13112 Humboldt Little River Beach State Park. Comment
  UC1123227  Anagallis arvensis H. L. Person 1932-8-1 Humboldt Korbel Eureka Quad., Korbel Comment
  HSC100422  Anaphalis margaritacea Carl C. Marshall Aug 1886 251 Humboldt Near Arcata. Comment
  HSC68155  Anaphalis margaritacea J. P. Smith 1971-10-6 4985 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  CAS-BOT-BC391786  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  HSC31122  Anemone deltoidea J. O. Sawyer 1970-6-24 2265 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC56099  Anemone deltoidea G. L. Clifton 1979-7-31 11817 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC44403  Anemone oregana var. oregana R. York 1978-5-6 155 Humboldt Around Onion Lake on Bluff Creek Rd. 1220 Comment
  UC1051574  Angelica genuflexa Joseph P. Tracy 1948-9-12 18206 Humboldt Trinity Summit, at Box Camp Trinity Summit; , Box Camp 1463 Comment
  CAS-BOT-BC221417  Angelica hendersonii L. R. Abrams 1927-9-1 12065 Humboldt Stone Lagoon Comment
  UC582632  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC582635  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC71410  Angelica hendersonii J. M. DiTomaso 1980-8-3 1831 Humboldt Big Lagoon State Park, S end, 50m N of boat ramp, 40m from Lagoon Comment
  HSC70546  Angelica tomentosa M. A. Baker 1980-7-19 3025 Humboldt Near Bret Hole. 1814 Comment
  HSC99547  Angelica tomentosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 212 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  HSC67890  Anisocarpus madioides J. P. Smith 1973-5-26 6853 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC97641  Antennaria suffrutescens Cara Witte 2007-6-12 242 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  HSC90322  Anthoxanthum occidentale C. Wilson, P. Kittelson, M. Hardig 1992-5-2 61 Humboldt 50 m up dirt road E of Redwood Science Lab. 61 Comment
  UCD85497  Anthoxanthum occidentale H. S. Yates 1936-6-22 5850 Humboldt 4 miles NE of Bald Mtn. Comment
  CAS-BOT-BC137739  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mile esat of Freshwater (Garfield), on Kneeland Road. Comment
  HSC102648  Anthoxanthum odoratum J. P. Smith 2009-5-31 12609 Humboldt Bald Hills Road. 791 Comment
  HSC5264  Anthoxanthum odoratum John Warner Hosking 1966-5-8 Humboldt Arcata bottomland, Arcata Comment
  HSC8948  Anthoxanthum odoratum William J. Ferlatte 1963-5-6 34 Humboldt Arcata, near 11th and B Sts. Comment
Read comments Jun 6 2012
  UC573791  Anthoxanthum odoratum H. S. Yates 1936-6-16 5684 Humboldt near Bayside 9 Comment
  SD120899  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 359 Humboldt Willow Creek. Forest Service Road 10N02 (to Waterman Ridge and Horse Linto Creek), 0.8 miles N of junction with Sunset Pl. 2.7 miles from start of Patterson Road(at end of River Road, 0.9 miles from Hwy. 299 in Willow Creek 213 Comment
  UCD143195  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC34969  Apocynum cannabinum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC562298  Apocynum cannabinum Joseph P. Tracy 1932-6-14 10148 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC75558  Aquilegia formosa var. formosa J. O. Sawyer, R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  HSC57019  Aquilegia formosa var. truncata Overton, Butler 1979-7-24 9631 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC40232  Arabidopsis thaliana J. P. Smith, J. O. Sawyer 1976-5-2 8626 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 Comment
  HSC6529  Arabis divaricarpa J. P. Tracy 1932-7-12 10391 Humboldt Trinity Summit 1524 Comment
  UC162637  Arabis glabra Harley P. Chandler Jun 1901 1337 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1225763  Arabis glabra Joseph P. Tracy 1946-7-7 17610 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC100716  Arabis holboellii Carl C. Marshall Jun 1886 309 Humboldt Trinity Summit. Comment
  CAS-BOT-BC128698  Arbutus menziesii Doris K. Kildale 1927-12-1 4210 Humboldt Klamath River at Orleans Comment
  UC1198124  Arceuthobium campylopodum Doris Kildale 1926-9-6 Humboldt Lasseck's Peak 1524 Comment
  UC1222872  Arctium minus Joseph P. Tracy 1950-9-2 19351 Humboldt at, 3 mi s of Field's Landing Beatrice Comment
  UCD162896  Arctostaphylos canescens D. O. Burge 2015-6-5 1742 Humboldt Horse Mountain. 1460 Comment
  CAS-BOT-BC25210  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-8 16850 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  CAS-BOT-BC23747  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. hwy. 299, Arcata to Willow Creek. 274 Comment
  CAS-BOT-BC23770  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. betwwn Shelter Cove and Kenny Comment
  CAS-BOT-BC23788  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt Along the road paralelling the ocean at Bishop Pine Lodge, 3 miles north of Trinidad. Comment
  CAS-BOT-BC23795  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23822  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old Coast Road, 7 miles south of Honeydew Post Office. 304 Comment
  HSC89539  Arctostaphylos columbiana M. Roantree 1985-4-28 15 Humboldt W side of Trinidad Head, along trail Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  JEPS38970  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15074 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  JEPS38976  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD50668  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  HSC7633  Arctostaphylos glandulosa J. Pursell 1964-10-18 10185 Humboldt 5 mi. from Hwy. 299 on Bald Mtn. Road Comment
  SEINET11998344  Arctostaphylos klamathensis Unknown 1989-1 s.n. Humboldt Fish Lake Area near Weitchpec, near Klameth River 549 Comment
  RSA632788  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27792 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632789  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27764 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC73604  Arctostaphylos manzanita M. A. Baker 1980-7-23 3143 Humboldt Near Orleans Mtn. 1859 Comment
  SEINET2030098 Image available Arctostaphylos manzanita W. K. Fisher 1899-6-3 29 Humboldt Hoopa Valley Comment
  CHSC110739  Arctostaphylos manzanita subsp. glaucescens Dean Wm. Taylor 2011-5-4 21119 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River. 701 Comment
  CAS-BOT-BC38835  Arctostaphylos manzanita subsp. manzanita P. C. Everett; E. K. Balls 1959-10-24 23954 Humboldt 6.8 mi. SW from Siskiyou-Humboldt Co. line, somesbar to Orleans. 152 Comment
  SEINET2031081 Image available Arctostaphylos montana Joseph P. Tracy 1934-1 13158 Humboldt French Camp Ridge 1067 Comment
  HSC55148  Arctostaphylos nevadensis G. L. Clifton, Griswold 1979-8-1 12071 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC59028  Arctostaphylos nevadensis M. A. Baker 1979-6-7 794 Humboldt Telescope Peak 1250 Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  HSC99037  Arctostaphylos nevadensis subsp. nevadensis C. Witte 2008-10-18 1058 Humboldt Along National Forest 1. 1/4 mile south of intersection with 6N35. Near Horse Mountain Botanical Area. 1480 Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  HSC70475  Arctostaphylos patula Gail Newton 1980-7-15 1588 Humboldt Near Sims Mtn. 1311 Comment
  CAS-BOT-BC43994  Arctostaphylos uva-ursi Philip A. Munz 1954-7-25 19876 Humboldt in Coastal Strand Community, at Humboldt Lighthouse south of Samoa Comment
  CAS-BOT-BC46795  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  CAS-BOT-BC47215  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa, Humboldt Bay. 15 Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  SD117461  Arctostaphylos uva-ursi Robert F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes Comment
  SEINET2029875 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 16740 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  UCD52152  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1148 Humboldt 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
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  RSA636989  Arctostaphylos viscida subsp. viscida Jon E. Keeley 1996-10-13 27788 Humboldt Bald Hills Road, eastern end of Redwood National Park, 223 km W of Hwy 96, N of Eureka. 600 Comment
  UC1717199  Arctotheca calendula G. Douglas Barbe, T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  UC668127  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Head of Brett Hole Trinity Summitt, Brett Hole 1828 Comment
  RSA86727  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertsons Ranch, vicinity of Garberville. 305 Comment
  HSC37923  Armeria maritima subsp. californica Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UCR122371  Armeria maritima subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7017 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  SEINET10537845  Armeria maritima subsp. californica Mary Susan Taylor 1990-8-22 Taylor 6083 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC34913  Arnica cordifolia Thomas W. Nelson, Jane P. Nelson 1975-5-24 1852 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC82432  Arnica discoidea Doris K. Kildale 1926-6-27 2190 a Humboldt McClellan Mountain, Sweasey Lake road 822 Comment
  CAS-BOT-BC90871  Artemisia pycnocephala Lester Rowntree 1937-8-15 s.n. Humboldt Little River Comment
  CAS-BOT-BC90872  Artemisia pycnocephala Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CHSC68778  Artemisia pycnocephala Vernon H. Oswald 1997-6-5 8542 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy. 255, Orvil Wilson Memorial Off-road Vehicle Park opposite the junction of New Navy Base Rd. and Lincoln Ave. 6 Comment
  HSC40299  Artemisia pycnocephala Linda M. Barker 1976-8-2 1675 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC91927  Artemisia suksdorfii E. Mackey 1987-6-11 Humboldt Patrick's Point State Park, Palmer's Point trail to beach Comment
  SEINET201066  Artemisia suksdorfii Joseph P. Tracy 1934-7-13 13382 Humboldt Coastal bluffs 3 Comment
  RSA21567  Aruncus sylvester Doris Kildale Gillespie 1937-09 9368 Humboldt Humboldt Comment
  CAS-BOT-BC400530  Asarum caudatum Peter H. Raven; R. Snow 1958-7-20 13642 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge Comment
  HSC58015  Asarum caudatum G. L. Clifton 1979-7-31 11818 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET3873461  Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.S. Hwy 101 ca 2.8 miles south of Stafford, near Exit 674.; 0 74 Comment
  RSA167427  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  HSC63192  Asclepias speciosa M. A. Baker 1979-7-6 1006 Humboldt Along E bank of Klamath River Comment
  CAS-BOT-BC65940  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC44354  Aspidotis densa Brad Klipfel 1974-5-8 317 Humboldt Horse Mountain Comment
  RSA686386  Aspidotis densa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain Trail 915 Comment
  UC302329  Aspidotis densa Charlotte M. Wilder 1912-10-1 Humboldt ca. 6 mi above Kuntz P.O. (Upper Van Duzen River) 914 Comment
  CAS-BOT-BC193142  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  JEPS118178  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  SEINET948796  Astragalus umbraticus Joseph P. Tracy 1914-1 4595 Humboldt Bal mountians, between high prairie and snow camp. 1219 Comment
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC76227  Asyneuma prenanthoides Overton, Butler 1979-7-24 9772 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC70632  Athysanus pusillus R. York 1980-5-18 584 Humboldt Near Black Mtn 792 Comment
  JEPS23936  Athysanus pusillus Volney Rattan 1882-1 Humboldt Chemise Mountain Comment
  HSC35625  Atriplex leucophylla Thomas W. Nelson, James Nelson 1975-8-5 2138 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  UCR139066  Atriplex patula subsp. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, Palco Marsh 1 Comment
  HSC9031  Avena barbata Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  POM312956  Azolla filiculoides Malcolm A. Nobs, S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  SD39654  Baccharis glutinosa Edith A. Purer 1932-7-27 4139 Humboldt Samoa Comment
  CAS-BOT-BC98029  Baccharis pilularis Elmer I. Applegate 1922-9-19 3451 Humboldt Along the coast below Eureka Comment
  JEPS40685  Baccharis pilularis W. L. Jepson Sep 19 1924-Sep 21 1924 10655 Humboldt Garberville Comment
  UC169039  Baccharis pilularis Joseph P. Tracy 1912-10-20 4003 Humboldt Alton 30 Comment
  HSC13133  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-9 33 Humboldt HSC campus, Arcata, near Fisheries water tank on Union St. Comment
  HSC26396  Baccharis pilularis subsp. pilularis T. O. Osborne 1970-9-16 30 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC26635  Balsamorhiza deltoidea Thomas W. Nelson 1971-5-31 457 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  UC492247  Barbarea orthoceras Joseph P. Tracy 1927-7-24 8292 Humboldt Mattole Valley 152 Comment
  JEPS31856  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 miles up from mouth of Bear River Bear River 152 Comment
  UC1199304  Bellis perennis Joseph P. Tracy 1924-3-9 6617 Humboldt Kneeland Prairie, near Lawrence Creek Northern Coast Ranges 762 Comment
  HSC100357  Bensoniella oregana T. Jimerson, S. L. Birch 1980-7-11 975 Humboldt Snow Camp Mountain, Rooster Rock. 1280 Comment
Read comments Nov 6 2018
  CAS-BOT-BC48159  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  JEPS3738  Bensoniella oregona Rimo Bacigalupi and L. Constance with R. Moran, R. L. Rodriguez and Sherwin Carlquist 1951-6-14 3416 Humboldt close to the base Snow Camp Mt. (at Snow Camp, near summit of long high ridge (Bald Mt. ridge) between Mad River and Redwood Creek); nr summit Bald Mt. Snow Camp Mt, btw Mad River and Redwood C 1432 Comment
  UC1046538  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt Snow Camp Bald Mountain Ridge (ridge between Mad River and Redwood Creek, Bald Mountain Ridge); Bald Mountain ridge, btw Mad River and Redwood Creek 1432 Comment
  UC1046539  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; Bald Mountain ridge, btw Mad River and Redwood Creek 1066 Comment
  CAS-BOT-BC128915  Berberis aquifolium Alice Eastwood; John Thomas Howell 1937-6-23 4794 Humboldt Near Dinsmore's Comment
  HSC24379  Berberis aquifolium J. O. Sawyer 1970-6-24 2258 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  HSC73808  Berberis aquifolium var. repens M. A. Baker 1980-6-16 1930 Humboldt Near Monks Camp. 1097 Comment
  HSC76281  Berberis aquifolium var. repens Denis Kearns 1981-7-6 45 Humboldt Near Mosquito Lake 1122 Comment
  HSC3361  Berberis darwinii G. L. Cribbs 1966-5-7 1049 Humboldt Cooper Canyon at end of L St. 15 Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC76280  Berberis nervosa Denis Kearns 1981-7-8 146 Humboldt Near Bluff Creek 622 Comment
  UC1198381  Berberis nervosa Joseph P. Tracy 1926-6-13 7597 Humboldt Liscom Hill road near Blue Lake 152 Comment
  HSC104398  Berberis nervosa A. T. Leiser 1980-7-9 Humboldt Redwood National Park; Highway 101 re-route Comment
  HSC35713  Berberis pinnata Thomas W. Nelson 1975-10-12 2237 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC75898  Berberis piperiana H. E. McMinn 1922-8-5 342 Humboldt Van Duzen River. Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  UCD129580  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. From Orleans down the river. 121 Comment
  CAS-BOT-BC412988  Bistorta bistortoides Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC1196126  Boschniakia strobilacea Joseph P. Tracy 1939-4-29 16251 Humboldt Klamath River near Slate Creek. Comment
  HSC44123  Botrychium multifidum Thomas F. Lyon, Linda M. Barker 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  CAS-BOT-BC420259  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon Comment
  SEINET12012990  Brassica juncea M. A. Lane 1990-3-20 3296 Humboldt below US 101 & above Benbow Drive to Benbow Lake State Recreation Area Comment
  HSC95592  Brassica rapa Andrea Pickart 2002-3-31 19 Humboldt Arcata Marsh, R. Gearhart marsh 0 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
  RSA385270  Briza maxima Bonnie C. Templeton 1964-6-13 100901 Humboldt Samoa [sand dunes], west of Arcata. Comment
  UC1145095  Briza maxima Joseph P. Tracy 1942-5-16 17358 Humboldt on bench 1 mi ne Garberville 304 Comment
  BLMAR52  Briza maxima Brad Barr June, 1982 52 Humboldt King range, Etters cabin Comment
  HSC72623  Brodiaea elegans subsp. elegans J. P. Smith 1977-7-3 9230 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  HSC81655  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1980-7-13 6058 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  SEINET200767  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt South Fork of Trinity River mountain slopes west of its mouth 305 Comment
  BLMAR191  Brodiaea terrestris subsp. terrestris Donald Hazlett 1994-6-7 191 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  HSC45072  Brodiaea terrestris subsp. terrestris R. Sutherland 1978-5-12 5 .12578 Humboldt McKee Flat 288 Comment
  CAS-BOT-BC144348  Bromus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  UC34028  Bromus carinatus var. carinatus Henry Melde 1902-2-8 Humboldt Eureka Comment
  UC37585  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-11 5408 Humboldt Summit above Hubbard's Station Comment
  SEINET201048 Image available Bromus carinatus var. marginatus Harold E. Parks, Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad Comment
  HSC9296  Bromus diandrus R. J. Vernimen 1963-3-25 16 Humboldt Clam Beach Lagoons, along railroad tracks Comment
  HSC40343  Bromus hordeaceus Linda M. Barker 1976-8-24 1681 Humboldt 3 mi. W of Arcata Comment
  HSC9246  Bromus hordeaceus L. H. Myers 1963-5-17 36 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC98699  Bromus hordeaceus Cara Witte 2007-5-23 98 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  UC1103367  Bromus hordeaceus Joseph P. Tracy 1920-5-18 5322 Humboldt Northern Coast Ranges, Look Prairie, on Bull Creek Bull Creek; Northern Coast Ranges, Look Prairie, Bull Creek 152 Comment
  UCD59692  Bromus sterilis A. H. Murphy 1951-4-19 10 Humboldt Tooby and Prior Ranch, 2 miles south of Blocksburg. Comment
  SEINET200634 Image available Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt Along Mad River near Blue Lake. 15 Comment
  SEINET200635 Image available Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Larrabee Valley. 701 Comment
  HSC72631  Bromus vulgaris J. P. Smith 1977-7-3 9252 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS72925  Bromus vulgaris Lincoln Constance 1934-6-7 830 Humboldt Bull Creek Region, South Fork Eel River, Johnson Prairie Johnson Prairie; Bull Creek Region, South Fork Eel River, Johnson Prairie Comment
  RSA259560  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 J- 1231 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UC1103268  Bromus vulgaris Joseph P. Tracy 1912-7-25 3817 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1103269  Bromus vulgaris Joseph P. Tracy 1901-6-30 1211 Humboldt immediate vicinity of Eureka 0 Comment
  UCD60234  Bromus vulgaris P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. Comment
  UC161575  Cakile edentula J. P. Tracy 1901-8-7 1266 Humboldt Ocean Beach at Samoa, opposite Eureka Ocean Beach; Samoa, Ocean Beach Comment
  UC673074  Cakile edentula Joseph P. Tracy 1940-10-5 16745 Humboldt Mouth of Little River Little River 3 Comment
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC185470  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  SEINET200619 Image available Calamagrostis koelerioides Joseph P. Tracy 1934-7-18 13408 Humboldt Horse Mountain. Comment
  BLMAR27  Calamagrostis nutkaensis Brad Barr June, 1982 27 Humboldt King range, on edge of high bench above light house Comment
  UCD57741  Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Garberville. 152 Comment
  UC204109  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1918-5-28 4950 Humboldt Bald Mt. Northern Coast Ranges (on slope between High Prairie and Redwood Creek) 914 Comment
  HSC62828  Callitriche stagnalis J. M. DiTomaso 1979-4-21 888 Humboldt Fresh water creek at Clam Beach, 9 mi. N of Arcata. Comment
  CAS-BOT-BC80384  Calocedrus decurrens G. A. Coleman 1901-7-24 s.n. Humboldt Head of Supply Creek, Hoopa Indian Reservation Comment
  SBBG28816  Calocedrus decurrens D. K. Kildale 1926-8-15 2522 Humboldt Willow Crk Flat 152 Comment
  UC1005668  Calocedrus decurrens Frank W. Gould 1939-5-30 827 Humboldt about 25 mi due e of Eureka (top of Horse Mountain); Horse Mountain 365 Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  CAS-BOT-BC488453  Calochortus amabilis H. D. Ripley; R. C. Barneby 1948-6-16 6813 Humboldt South of Miranda 121 Comment
  HSC32949  Calochortus tolmiei Thomas W. Nelson, James Nelson 1973-5-28 961 Humboldt McKeown Ranch N of Dinsmore Comment
  UCD139588  Calochortus tolmiei Collector Unknown 1935-4-8 s.n. Humboldt Fort Seward. Comment
  UC1222581  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  UC129390  Calycadenia fremontii Harley P. Chandler 1901-6-1 1533 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1222959  Calycadenia truncata Joseph P. Tracy 1941-9-1 17009 Humboldt near Don Juan Point (along Trinity River); Trinity River 335 Comment
  HSC39966  Calypso bulbosa Linda M. Barker 1976-3-22 1347 Humboldt 3 mi. W of Arcata Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  UC4379  Calypso bulbosa Harley P. Chandler June, 1901 1280 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC40007  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2903 Humboldt Along ridge N of Bear Creek 1463 Comment
  JEPS90808  Calystegia occidentalis subsp. occidentalis Dean W. Taylor 1991-8-15 12298 Humboldt ridge 1 mi w of Horse Mountain; North Coast Ranges 1493 Comment
  UC449948  Calystegia occidentalis subsp. occidentalis Mrs. M. H. Manning 1901-1 Humboldt near Hupa; near Hupa Comment
  UC176994  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1912-8-3 3974 Humboldt Valley Van Duzen River (opposite Buck Mountain, Northern Coast Ranges); Northern Coast Ranges, Valley of Van Duzen River, Buck Mount 762 Comment
  HSC23736  Calystegia purpurata Tim Baroni 1971-7-5 107 Humboldt 8 mi. E of Petrolia Comment
  HSC79454  Calystegia purpurata subsp. purpurata Kenneth Clark 1980-4-18 604 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  HSC6364  Calystegia soldanella J. W. Johnson 1961-8-17 1021 Humboldt W.M. Lanphere Farm, Samoa Peninsula Comment
  HSC6367  Calystegia soldanella J. R. Woodside 1963-5-11 6 Humboldt 1.25 mi. N of Fairhaven Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  RSA603171  Calystegia soldanella D. D. Keck, Jens Clausen 1935-6-16 3384 Humboldt Mouth of Little River. Comment
  HSC33058  Camassia quamash subsp. linearis Thomas W. Nelson 1974-5-7 1237 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  HSC16450  Camissonia cheiranthifolia D. E. Anderson 1963-3-16 2386 Humboldt Scotia Bluffs Comment
  HSC16539  Camissonia cheiranthifolia Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  RSA120762  Campanula prenanthoides S. S. Tillett 1956-7-6 612 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  SEINET10462969  Campanula prenanthoides Shields SHIELDS s.n. Humboldt 3 miles northwest of Weott Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  HSC98552  Campanula scouleri Cara Witte 2007-7-20 568 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  POM193020  Campanula scouleri M. H. Manning 1901-07 s.n. Humboldt Near Hupa Comment
  HSC100410  Campanula scouleri Carl C. Marshall Jun 1886 243 Humboldt Redwood region, 'wild grass'. Comment
  HSC98724  Campanula scouleri Cara Witte 2008-7-16 919 Humboldt Forest Service Road 4N38. At intersection to Board Camp Lookout. 1414 Comment
  SEINET201886  Campanula scouleri Joseph P. Tracy 1947-6-28 17722 Humboldt Dinsmore's along Van Duzen River opposite Buck Mountain. 762 Comment
  JEPS53316  Cardamine angulata Joseph P. Tracy 1926-6-12 7588 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  RSA273405  Cardamine breweri var. orbicularis Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Humboldt County: T3N, R1N, S29, Brzil Ranch E of Hwy 101 near college of Redwoods. Comment
  CAS-BOT-BC37427  Cardamine californica Doris Kildale 1931-5-10 10559 Humboldt Snow Camp. 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
  HSC6703  Cardamine californica Elrid H. Spinas 1948-5-15 17 Humboldt Horse Mtn. Comment
  HSC70231  Cardamine californica M. A. Baker 1980-6-8 1893 Humboldt Near Buck Flat. 1554 Comment
  POM272917  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  POM311254  Cardamine californica var. integrifolia Keith C. Hughes 1961-2-3 326 Humboldt Richardson Grove State Park; Mt. Range: Coast Ranges; Drainage Area: Pacific Slope. 137 Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  UC1173730  Cardamine californica var. sinuata Joseph P. Tracy 1939-4-25 16221 Humboldt mouth Bull Creek; Mouth of Bull Creek 60 Comment
  HSC28224  Cardamine oligosperma Thomas W. Nelson 1971-4-12 378 Humboldt S spit of Humboldt Bay. Comment
  HSC42014  Cardamine oligosperma M. A. Baker 1977-4-23 172 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UCR121762  Cardionema ramosissimum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6997 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC17982  Carex aquatilis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  CHSC92463  Carex arcta Gordon Leppig; T. LaBanca 2005-9-21 2320 Humboldt Pacific Lumber Company land. Clark Mountain Fen, Headwaters of Root Creek on northwest side of Clark Mt., UTM Zone 10, 423098E, 4477336N. 400 Comment
  UC1103084  Carex athrostachya Joseph P. Tracy 1930-7-23 9139 Humboldt Horse Mountain, near Cold Springs North Coast Ranges 1524 Comment
  CAS-BOT-BC19437  Carex bolanderi Robert F. Thorne; P. Everett 1965-8-5 35128 Humboldt Wailaki Recreation Site. 518 Comment
  HSC43238  Carex bolanderi R. Sutherland 1977-4-5 5477 Humboldt 386 Comment
  HSC70165  Carex bolanderi Thomas W. Nelson 1978-6-10 4417 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 Comment
  JEPS25962  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  UC1586920  Carex canescens Juha Pykala and D. H. Norris 1987-6-5 1435 Humboldt e Maple Creek; Lake Prairie 1050 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  CAS-BOT-BC34978  Carex densa Joseph Prince Tracy 1936-6-17 14953 Humboldt Northenr Coast Ranges. Buck Mountain, lower foothills of its northwestern slope. 762 Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  CAS-BOT-BC20079  Carex echinata Joseph Prince Tracy 1933-7-25 12845 Humboldt Northern Coast Ranges. Grouse Mountain. 1524 Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 Comment
  JEPS79841  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UC562716  Carex globosa Joseph P. Tracy 1927-7-4 8242 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  UC197207  Carex gynodynama Joseph P. Tracy 1908-6-7 2620 Humboldt Northern Coast Ranges, Butler Valley. Comment
  UC197484  Carex gynodynama Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3603 Humboldt Northern Coast Ranges, Hydesville. Comment
  POM292660  Carex gynodynama Lyman Benson 1929-7-16 1830 Humboldt Weott Ranger Station. Comment
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  CHSC90268  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8542 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  HSC102205  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1120 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC44527  Carex hoodii Brad Klipfel 1973-7-1 135 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC7791  Carex laeviculmis Doris K. Kildale 1931-5-10 10674 Humboldt Snow Camp Comment
  CHSC85984  Carex laeviculmis L. P. Janeway 2003-7-30 7938 Humboldt High North Coast Ranges. Cold Spring; 0.6 km north of the top of Titlow Hill. 1454 Comment
  RSA88654  Carex leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka. 61 Comment
  UC1103588  Carex luzulina var. ablata Joseph P. Tracy 1923-6-24 6367 Humboldt Bald Mountain, near High Prairie Northern Coast Ranges 1066 Comment
  UC1103589  Carex luzulina var. ablata Joseph P. Tracy 1936-6-28 15026 Humboldt bog at Lake Prairie Bald Mountain 1066 Comment
  BLMAR69  Carex lyngbyei Jennifer Anthony-Wheeler 1994-5-18 69 Humboldt Samoa/manilla dunes, growing intermittently wet area in the Samoa Dunes rec. area 6 Comment
  UC1115809  Carex lyngbyei Joseph P. Tracy 1938-7-15 16069 Humboldt mouth Eel River 3 Comment
  JEPS116608  Carex mariposana Barbara Wilson, Richard Brainerd, Susan Erwin, Christine Jordan and Mike Friend 2003-6-20 10950 Humboldt Sundew Meadow on South Fork Mountain, on Shasta-Trinity Forest road 1661 Comment
  HSC102227  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1148 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC119539  Carex nudata W. R. Dudley 1899-6-21 s.n. Humboldt Bluffs below forks of Eel River. 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
  UC1152077  Carex pachycarpa Joseph P. Tracy 1950-7-25 19064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1115819  Carex pachystachya Joseph P. Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  UC562659  Carex pachystachya Joseph P. Tracy 1935-7-27 14287 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC118598  Carex praticola Joseph Prince Tracy 1914-5-3 4421 Humboldt At Eureka 60 Comment
  HSC70467  Carex rossii J. P. Tracy 1904-5-1 2041 Humboldt Eureka 0 Comment
  CAS-BOT-BC28309  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  JEPS79843  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  RSA314077  Carex serratodens Thomas W. Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt On wet serpentine along road 2S08 near Pine Mountain. 1463 Comment
  HSC102533  Carex spectabilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1519 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC116681  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  CAS-BOT-BC115574  Carex tumulicola Joseph Prince Tracy 1930-7-10 8859 Humboldt In grassy opening Brannan Mountain 1219 Comment
  JEPS109269  Carex unilateralis D. W. Taylor 2004-6-24 19135 Humboldt Clear Lake, Titlow Hill Road Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  UC562342  Carex vesicaria var. major Joseph P. Tracy 1934-8-14 13574 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC1196855  Castilleja Joseph P. Tracy 1929-7-4 8634 Humboldt French Camp Ridge 1066 Comment
  HSC45090  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 34 Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC604629  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  JEPS3825  Castilleja applegatei subsp. martinii Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC535764  Castilleja applegatei subsp. martinii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  UC199382  Castilleja applegatei subsp. pinetorum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC582584  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit, Ranger Station; Trinity Summit 1828 Comment
  UC1222834  Castilleja arachnoidea Joseph P. Tracy 1950-8-8 19296 Humboldt Croghan Hole Trinity Summit (on Trinity Summit) 1676 Comment
  CHSC32837  Castilleja attenuata Lora L. Anderson 1981-4-26 18 Humboldt Ca. 1.5 mi ne of Redwood creek 4.5 mi n of 299 w 18 mi ne of Arcata. 228 Comment
  JEPS3683  Castilleja exserta subsp. latifolia Joseph P. Tracy 1925-8-14 7230 Humboldt 2-3 mi n Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC582576  Castilleja foliolosa Joseph P. Tracy 1934-7-9 13329 Humboldt 5 mi s Harris; Mail Ridge 762 Comment
  UC26418  Castilleja pruinosa Harley P. Chandler Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  CAS-BOT-BC47997  Ceanothus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
Read comments Aug 4 2016
  HSC101667  Ceanothus gloriosus var. exaltatus J. P. Smith, J. O. Sawyer 2011-4-23 13128 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  UC535732  Ceanothus incanus Eleanor Armstrong 1934-8-15 1187 Humboldt Richardson Grove 121 Comment
  UC634809  Ceanothus incanus H. L. Mason 1928-7-14 4901 Humboldt East Fork of Eel River Garberville Comment
  CAS-BOT-BC63685  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13180 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA46465  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-5-15 3301 Humboldt Petrolia Comment
  CDA36054  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 Comment
  RSA136480  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt Kneeland Prairie. 762 Comment
  HSC43182  Ceanothus parryi R. Sutherland 1975-7-5 9 .5775 Humboldt 244 Comment
  HSC43185  Ceanothus parryi R. Sutherland 1975-4-22 1 .22475 Humboldt County rd. near China Creek 204 Comment
  JEPS42121  Ceanothus parryi E. Fritz Apr. 1934 Humboldt Philipsville Comment
  UC203997  Ceanothus parryi Joseph P. Tracy 1918-7-6 5045 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UCSB11762  Ceanothus parryi Neuns, R. 1940-7-13 Humboldt 3 miles south of Alder Point 548 Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  CHSC19497  Ceanothus thyrsiflorus Norman Dennis 1965-6-19 124 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  HSC89541  Ceanothus thyrsiflorus M. Roantree 1985-4-25 4 Humboldt E side of Trinidad Head Comment
  UC275289  Ceanothus thyrsiflorus Joseph P. Tracy 1924-8-10 6796 Humboldt Strongs' Station Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UCD112839  Ceanothus velutinus J. Street 1950-6-24 s.n. Humboldt Close to coast north of Usal. Comment
  CAS-BOT-BC277175  Centaurea X moncktonii Henry M. Pollard 1945-8-20 s.n. Humboldt Bluff Creek Comment
  CDA7083  Centaurea calcitrapa T. C. Fuller 1960-8-25 4974 Humboldt Around Pacific Lumber Company barn, across Eel River from South Fork. 0 Comment
  SEINET200850  Centaurea calcitrapa J. P. Tracy 1940-10-17 16760 Humboldt South Fork Station near Dyerville 46 Comment
  UC1541642  Centaurea melitensis Harold E. Parks 1934-7-6 5117 Humboldt Jaqua-Yager Creek road Jaqua-Yager Creek 762 Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  UC154023  Centunculus minimus J. P. Tracy 1903-8-9 1943 Humboldt immediate vicinity of Eureka 0 Comment
  HSC48979  Cephalanthera austiniae Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  HSC74319  Cephalanthera austiniae Gail Newton 1980-7-20 1600 Humboldt Near Bell Swamps 1463 Comment
  HSC45053  Cerastium arvense R. Sutherland 1978-4-24 11 .24478 Humboldt Kinsey Ridge, gravel slide of road cut 323 Comment
  HSC4109  Cerastium fontanum subsp. vulgare D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  SFV18532  Cerastium glomeratum H. Barnes 2002-5-4 39 Humboldt McKinleyville. Hiller Park. Hammond Trail, 0.2 km north from parking lot. 25 Comment
  JEPS51348  Cerastium viride Mrs. M. H. Manning 1901-1 19 Humboldt near Hupa Comment
  SD42481  Cerastium viride Carl B. Wolf 1937-6-18 8883 Humboldt Table Bluff, between Humboldt Bay and Eel River. Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. Comment
  HSC31980  Chamaecyparis lawsoniana Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC56952  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9456 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  UC199010 Image available Chamaesyce serpyllifolia Chesnut and Drew 1888-7-23 Humboldt Hy-am-pum Comment
  CAS-BOT-BC166040  Chamerion angustifolium subsp. circumvagum Peter H. Raven; R. Snow 1958-7-21 13651 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  HSC48701  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-31 258 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC100931  Cheilanthes californica Miss Handy Jun 1886 343 Humboldt Maple Cr. Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  HSC55088  Cheilanthes gracillima G. L. Clifton, Griswold 1979-7-31 11762 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  UC673176  Cheilanthes gracillima Lincoln Constance and Reed C. Rollins 1942-5-12 2881 Humboldt 6 mi ne Weitchpec (mouth of Bluff Creek); Klamath-Siskiyou Region 152 Comment
  HSC91610  Chenopodium album E. Mackey 1987-8-10 Humboldt Patrick's Point State Park, by trail down to Agate Beach Comment
  SEINET10479107  Chenopodium atrovirens Mary Susan Taylor 1982-10-24 Taylor 5178 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC161392  Chenopodium botrys Chesnut and Drew 1888-7-1 Humboldt Grouse Creek Comment
  RSA273388  Chenopodium botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to north of Alder Springs. 1524 Comment
  CAS-BOT-BC473031  Chenopodium macrospermum var. farinosum Malcom A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  UC673037  Chenopodium multifidum Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC98134  Chimaphila menziesii Cara Witte 2007-6-26 358 Humboldt Horse Mountain Botanical Area. 1341 Comment
  HSC72630  Chimaphila umbellata J. P. Smith 1977-7-3 9253 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  CAS-BOT-BC451493  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  UC32702  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  JEPS49021  Chrysolepis chrysophylla Hilda W. Grinnell 1932-7-9 5 Humboldt above Kerlin Creek (South Fork Mt.); South Fork Mt. Comment
  RSA1834  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old coast road at Thorn. 305 Comment
  JEPS58688  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's (sw corner Humboldt County) 548 Comment
  UC519308  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC30122  Chrysolepis chrysophylla var. minor Carl B. Wolf 1937-9-13 9338 Humboldt North Coast Range, Summit of Grouse Mt. 1644 Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  UCD110101  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt Trinity Summit. 2 miles southeast of Devil's Hole. 1584 Comment
  UC1198647  Cicendia quadrangularis Joseph P. Tracy 1930-5-18 8696 Humboldt Rohnerville Golf Course 152 Comment
  JEPS35983  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region. South Fork Eel River. On E side of road at Englewood, across the road from Collin's Englewood Campground. Comment
  JEPS12245  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  HSC36303  Cicuta douglasii C. Cornish 1973-10-10 1 Humboldt Shore of Freshwater Lagoon Comment
  UC1145089  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  UC314621  Circaea alpina subsp. pacifica Joseph P. Tracy 1924-6-1 6691 Humboldt at crossing of the Kneeland Rd. Lawrence Creek; Northern Coast Ranges, Lawrence Creek 609 Comment
  UC582529  Cirsium arvense Joseph P. Tracy 1933-8-13 12962 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC284409  Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt 1 1/2 miles n. of Orick, Redwood Highway Comment
  CDA1175  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  SEINET11263070  Cirsium douglasii var. canescens Thomas Nelson 1976-7-9 2987 Humboldt Beside 1S07 just west of summit.; 0 1585 Comment
  CAS-BOT-BC279974  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  UC1565808  Cirsium douglasii var. douglasii R. Spellenberg 1990-7-10 10253 Humboldt 1 mi w of Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100, 4.5 mi s of Berry Summit (on Calif. Hwy. 299), extreme e edge of county) 1219 Comment
  UC1199138  Cirsium occidentale var. venustum Joseph P. Tracy 1936-7-5 15045 Humboldt Horse Mt. 1066 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
  UC1223041  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18472 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south); Kinsey Ridge 1280 Comment
  UC1122363  Clarkia amoena H. S. Yates 1936-6-23 5875 Humboldt 4 mi nne Cathays Peak; Dyerville Quadrangle Comment
  CAS-BOT-BC160958  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-25 3836 Humboldt Table Bluff Comment
  UC144074  Clarkia amoena subsp. amoena Joseph P. Tracy 1909-7-31 3026 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
  LA206050  Clarkia concinna H. Lewis; M. Lewis 1947-6-13 419 Humboldt Hwy 36, 1.9 mi W of Van Duzen River Bridge Comment
  UC58846  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1327 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC702560  Clarkia purpurea C. C. and S. K. Harris, J. P. Tracy 1942-6-22 1261 Humboldt 7 mi n and 5 mi e Willow Creek 165 Comment
  UC198877  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew July 1888 Humboldt Campbell's Comment
  JEPS43741  Clarkia purpurea subsp. viminea Lincoln Constance 1934-5-23 619 Humboldt upper end Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  POM247175  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork Trinity River; mountain slopes west of its mouth 457 Comment
  UCD150389  Claytonia cordifolia Harry A. George 1967-7-13 s.n. Humboldt Pepperwood. Comment
  JEPS43314  Claytonia exigua subsp. exigua W. L. Jepson 1902-6-20 1903 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  HSC67374  Claytonia exigua subsp. glauca Thomas W. Nelson, James Nelson 1980-6-10 5414 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC99412  Claytonia parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 61 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
  HSC17686  Claytonia perfoliata Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  HSC89493  Claytonia perfoliata subsp. mexicana P. A. Daly 1986-2-28 57 Humboldt Trinidad Head, along trail 61 Comment
  UCD100846  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1318 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC70226  Claytonia rubra subsp. rubra M. A. Baker 1980-6-8 1888 Humboldt Near Buck Flat. 1554 Comment
  HSC45414  Claytonia rubra subsp. rubra Thomas W. Nelson, Jane P. Nelson 1977-7-1 3542 Humboldt FS Rd. 1S07 NW of Black Lassic Comment
  HSC17738  Claytonia sibirica J. R. Eichelberger 1964-4-10 25 Humboldt 4 mi. above Blue Lake on Hwy. 299 Comment
  RSA117684  Claytonia sibirica S. S. Tillett 1956-7-3 601 Humboldt 18miles from jct 101. 564 Comment
  UCD100884  Claytonia sibirica Joseph M. DiTomaso 1976-3-28 355 Humboldt Highway 299 near summit, 8 miles west of Willow Creek. Comment
  HSC24331  Claytonia washingtoniana C. E. Fellows 1971-6-7 453 Humboldt 0.2 mi. E of RR track on West End Rd., above the Mad River Comment
  UC668071  Clematis ligusticifolia Joseph P. Tracy 1937-8-3 15608 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  HSC14387  Clinopodium douglasii David Adams 1960-7-17 Humboldt 2 miles S of Samoa 3 Comment
  SEINET3885722  Clintonia andrewsiana D. W. McNeal 1977-6-6 2047 Humboldt On a Redwood House Rd., 2.6 mi. n.e. of Hwy. #36 between Bridgeville and Charlotta.; 0 Comment
  CAS-BOT-BC238026  Collinsia Doris Kildale Gillespie 1931-6-7 10601 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC147865  Collinsia grandiflora Joseph P. Tracy 1908-6 2709 Humboldt opposite Buck Mtn Valley of Van Duzen River; North Coast Ranges, Valley of Van Duzen River 762 Comment
  UC147862  Collinsia greenei Joseph P. Tracy 1908-6 9840 Humboldt nw slope Buck Mtn; Northern Coast Ranges, Buck Mtn 1219 Comment
  UC582467  Collinsia heterophylla Joseph P. Tracy 1927-5-30 8089 Humboldt vicinity of Garberville 121 Comment
  UC582453  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1196839  Collinsia rattanii Joseph P. Tracy 1933-5-14 12173 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  HSC100664  Collinsia tinctoria Carl C. Marshall May 1887 418 Humboldt Spruce Grove region. Comment
  HSC100912  Collinsia torreyi Carl C. Marshall Jun 1886 301 Humboldt Trinity Summit. Comment
  HSC56166  Collomia grandiflora G. L. Clifton, Griswold 1979-8-1 12053 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1197854  Collomia grandiflora Joseph P. Tracy 1911-7-10 3498 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges 304 Comment
  HSC58012  Collomia heterophylla G. L. Clifton 1979-7-31 11810 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC71069  Collomia heterophylla Thomas W. Nelson, Jane P. Nelson 1977-5-30 3403 Humboldt Above Mad River at Anderson's Ford. 640 Comment
  POM210032  Collomia heterophylla H. E. Parks 1933-05 01152 Humboldt Spruce Cove, Trinidad 76 Comment
  RSA183510  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  UC60862  Collomia heterophylla Harley P. Chandler June, 1901 1401 Humboldt Klamath River North Coast Ranges 213 Comment
  HSC44406  Collomia heterophylla R. York 1978-5-6 158 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC133645  Collomia heterophylla Joseph P. Tracy 1909-7-31 3046 Humboldt on gravelly hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC97106  Collomia tracyi Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  CAS-BOT-BC157349  Comarum palustre Carl B. Wolf 1927-8-22 775 Humboldt Big Lagoon Comment
  UC180508  Conium maculatum Joseph P. Tracy 1914-6-7 4496 Humboldt Region about Humboldt Bay (South Fork Elk River, at Falk's Mill); Northern Coast Region, South Fork Elk River, Falk's Mill 0 Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  UC1199443  Conyza floribunda Joseph P. Tracy 1929-10-13 8679 Humboldt Carlotta 60 Comment
  UC56317  Corallorhiza maculata Joseph Burtt Davy 1899-6-11 5421 Humboldt Hubbard's to Elk Prairie Comment
  HSC44843  Corallorhiza mertensiana Thomas W. Nelson, Jane P. Nelson 1977-7-1 3566 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  BLMAR311  Cordylanthus maritimus subsp. palustris Jennifer Anthony-Wheeler 2002-7-1 311 Humboldt South Spit 6 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
  HSC90781  Cordylanthus maritimus subsp. palustris Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  UC1196817  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1935-7-30 14354 Humboldt Salmon Summit 1767 Comment
  JEPS6785  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt South Fork of Trinity River (mountain slopes w of its mouth) 304 Comment
  UC604676  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt mt. slopes w mouth of river; South Fork of Trinity River 304 Comment
  CAS-BOT-BC101144  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  JEPS79878  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain at Lake Prairie Bald Mountain 1066 Comment
  JEPS50171  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt ca. 1/2 mi. w. of its mouth Bull Creek; Bull Creek Region, S. Fork Eel R. Comment
  RSA183588  Cornus nuttallii D. E. Anderson 1965-4-24 3549 Humboldt About 1 mile east of Redwood Creek bridge on Highway 299. Comment
  SEINET12137714  Cornus nuttallii F. H. Utech 1988-1 88 -278 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, bluff above Van Duzen River 800 Comment
  CAS-BOT-BC212177  Cornus sericea Joseph P. Tracy 1947-6-26 17747 Humboldt Near McKay Camp, South Fork Mountain 1676 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
  HSC6421  Cornus sessilis D. E. Anderson 1963-3-1 2368 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC1052446  Cornus sessilis H. E. and S. T. Parks 1941-7-5 11492 Humboldt Hors Linto Creek Comment
  HSC31386  Cortaderia selloana Ernest P. Camilleri 1974-11-20 Humboldt 2 mi. S of Arcata on Hwy. 101 Comment
  CAS-BOT-BC180309  Corylus cornuta subsp. californica L. B. Kildale 1928-7-1 5311 Humboldt French Camp in Orick - Martin's Ferry road Comment
  HSC57139  Corylus cornuta subsp. californica Overton, Butler 1979-7-25 9919 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC70453  Corylus cornuta subsp. californica Gail Newton 1980-7-20 1642 Humboldt Near Bell Swamps 1426 Comment
  HSC104408  Corylus cornuta subsp. californica Adam N. Canter 2017-4-1 5 Humboldt Eureka, Fort Humboldt State Historic Park, west-facing bluffs along east side of Hwy. 101 Comment
  HSC104409  Corylus cornuta subsp. californica Adam N. Canter 2017-3-10 4 Humboldt Table Bluff, along Hookton Road. 13 Comment
  HSC97559  Corylus cornuta var. californica Cara Witte 2007-6-5 210 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC98546  Corylus cornuta var. californica Cara Witte 2007-5-26 652 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  UCR32167  Corylus cornuta var. californica David J. Keil 1983-7-2 17312 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  SD117460  Cotoneaster franchetii Robert F. Thorne 1974-7-29 45072 Humboldt Samoa Dunes Comment
  RSA730001  Cotoneaster pannosus Peter F. Zika 2007-7-20 263324 Humboldt NCo, North Coast: Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  UC166079  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Eureka Comment
  SEINET3817861  Cotula coronopifolia E. G. Kynoch Jr. 1966-10-7 405 Humboldt Clam Beach near Little River State Park 2 Comment
  HSC5431  Cotula coronopifolia H. E. Parks Sep 1941 24211 Humboldt Little River Beach Park, along highway Comment
  SEINET196689  Crataegus douglasii J. P. Tracy 1948-9-12 18205 Humboldt Box Camp Meadow; Trinity Summit 1463 Comment
  CAS-BOT-BC290586  Crepis capillaris L. R. Abrams 1916-7-18 6114 Humboldt Arcata to Trinidad, 18 mi. along coast Comment
  CAS-BOT-BC291487  Crepis capillaris L. R. Abrams 1927-8-31 12055 Humboldt Marshes between Arcata and Eureka along highway Comment
  CAS-BOT-BC291491  Crepis capillaris Alice Eastwood; John Thomas Howell 1937-6-23 4836 Humboldt 7 miles from Yager on road to Kneeland Comment
  UCSB30599  Crepis capillaris Edwards, David 1974-7-13 Humboldt SW. of intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  HSC71588  Crepis pleurocarpa M. A. Baker 1980-6-26 2393 Humboldt Near Sims Creek 610 Comment
  HSC98953  Crepis pleurocarpa Cara Witte 2008-7-28 953 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UC581741  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain Northern Coast ranges, McClellan Mountain 822 Comment
  HSC98635  Croton setiger Cara Witte 2008-8-16 1031 Humboldt Along National Forest 1. On Kinsey Ridge. 1336 Comment
  HSC100706  Cryptantha Carl C. Marshall Jun 1887 484 Humboldt Near Jewett's field. Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC526804  Cryptantha affinis Joseph P. Tracy 1932-7-11 10398 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC55910  Cryptantha flaccida J. P. Tracy 1903-5-22 1880 Humboldt Alder Point Bridge Eel River 152 Comment
  CHSC10140  Cryptantha leiocarpa J. W. Johnson 1962-4-10 1237 Humboldt Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula. Comment
  UC175789  Cryptantha leiocarpa Joseph P. Tracy 1910-6-5 3143 Humboldt Humboldt Bay Northern Coast Region Comment
  JEPS18415  Cryptantha milobakeri Joseph P. Tracy 1932-6-14 10141 Humboldt w of mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  HSC3589  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. 1433 Comment
  CAS-BOT-BC224391  Cuscuta californica Joseph P. Tracy 1949-8-4 18408 Humboldt Trinity Summit. Mud Springs 1341 Comment
  HSC63068  Cuscuta salina David Wheeler 1979-5-28 151 Humboldt S end of sewage oxidation ponds Comment
  POM318827  Cuscuta salina Patricia Wilder 1968-8-21 4416 a Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC922008  Cynodon dactylon Joseph P. Tracy 1948-8-22 18108 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UC922013  Cynodon dactylon Joseph P. Tracy 1949-8-18 16427 Humboldt Eureka 15 Comment
  HSC97640  Cynoglossum grande C. Witte 2007-5-8 9 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 Comment
  UCD60123  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 miles northwest of Petrolia. 152 Comment
  HSC53799  Cynosurus echinatus Griswold, Butler 1979-7-10 6219 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  SEINET200971  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River at mouth of Bluff Creek. 152 Comment
  CAS-BOT-BC114268  Cyperus esculentus Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  HSC32333  Cystopteris fragilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5635 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  JEPS35178  Cystopteris fragilis Joseph P. Tracy 1925-11-25 7325 Humboldt near S Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD136399  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt Bull Creek Region, South Fork Eel River. Comment
  HSC14670  Cytisus scoparius S. J. Hawks 1965-4-6 21 Humboldt Luffenholtz Beach Comment
  HSC40373  Cytisus scoparius Linda M. Barker 1976-3-11 1322 Humboldt 3 mi. W of Arcata Comment
  UC1222419  Cytisus scoparius Joseph P. Tracy 1950-6-17 18830 Humboldt Eureka Comment
  HSC22835  Dactylis glomerata B. D. Rogers 1964-4-28 28464 Humboldt Humboldt State campus near Redwood Hall parking lot Comment
  UC1541567  Dactylis glomerata Harold E. Parks May 1933 4307 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  CAS-BOT-BC189744  Danthonia californica Joseph P. Tracy 1932-7-10 10392 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  HSC24617  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  HSC32479  Danthonia californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5721 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1103255  Danthonia californica Joseph P. Tracy 1926-7-5 7727 Humboldt Valley of South Yager Creek Comment
  SEINET10598246  Danthonia californica Joseph P. Tracy 1912-6-9 Tracy 3650 Humboldt Alton, common on open slopes. 30 Comment
  RSA10086  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie 793 Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  RSA293102  Danthonia californica var. californica J. P. Smith 1977-7-3 9231 Humboldt Road to Fish lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 488 Comment
  UC552754  Danthonia intermedia Joseph P. Tracy 1934-7-18 13421 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCD61358  Danthonia unispicata A. H. Murphy 1951-6-25 73 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  UC249629  Darmera peltata Joseph P. Tracy 1921-9-4 5958 Humboldt mouth of South Fork of Trinity River; Northern Coast Ranges 152 Comment
  UCD95699  Delphinium decorum K. Esau 1934-5-7 s.n. Humboldt Near Blocksburg 609 Comment
  CAS-BOT-BC9027  Delphinium decorum subsp. tracyi Charles R. Schwend 1986-4-19 023 Humboldt Approximtaely 3/4 mile west of ski area on Horse Mountain Comment
  HSC27069  Delphinium decorum subsp. tracyi D. E. Anderson 1965-4-24 3533 Humboldt Along Titlow Hill Rd. Comment
  HSC92103  Delphinium decorum subsp. tracyi S. Morrissette, J. Williams, K. Kopper 1994-5-6 50 Humboldt 0.4 mi. S of Hwy. 299 on Titlow Rd. 854 Comment
  HSC85771  Delphinium hesperium Andrea Begnoche, Leonel Arguello, Bobbi Schnell 1987-4-24 41 Humboldt 24 mi. E of Blue Lake on Titlow Rd., 100 yds. from Hwy. 299 854 Comment
  HSC25010  Delphinium nudicaule G. N. Bos 1965-5-15 270 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC89622  Delphinium nudicaule Pat Daly, Rudy Galindo 1988-3-12 5 Humboldt S Fork Trail of Trinity River, trailhead 12.4 mi. up S Fork Rd. from Hwy. 299 457 Comment
  JEPS23367  Delphinium nudicaule Joseph P. Tracy 1927-5-30 8084 Humboldt near Briceland; Northern Coast Ranges 243 Comment
  CAS-BOT-BC121973  Delphinium trolliifolium E. K. Balls; L. W. Lenz 1955-5-15 20736 Humboldt 9.9 mi. SW from Fernbridge, along Old Coast road to Capetown 502 Comment
  HSC46069  Delphinium trolliifolium G. N. Bos 1965-5-15 276 Humboldt Berry Summit near Hwy. 299 793 Comment
  UC1075803  Delphinium trolliifolium E. K. Balls and L. W. Lenz 1955-5-15 20736 Humboldt hills 9.9 mi sw Fernbridge (along Old Coast rd to Capetown) 502 Comment
  UC1196341  Delphinium trolliifolium Joseph P. Tracy 1921-6-19 5831 Humboldt Berry Mt. Northern Coast Ranges 914 Comment
  UC668070  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  BLMAR24  Deschampsia cespitosa Brad Barr June, 1982 24 Humboldt King range, Johnny Jack Ridge Comment
  SEINET10515720  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. T4N R1W sw 1/4 sec 4, Eureka quadrangle. Elevation 1 mi. 1 Comment
  SEINET4566835  Deschampsia cespitosa J. Davy, W. Blasdale 1899-1 6213 Humboldt Eureka Comment
  UC1100295  Deschampsia cespitosa subsp. beringensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1167 Humboldt 1 mi. s. Fields Landing; Eel R. Valley Comment
  UC552695  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1934-7-20 13456 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC27104  Deschampsia cespitosa subsp. holciformis L. M. Malloy 1965-5-19 38 Humboldt Arcata, southside of Samoa Rd., opposite of KATA radio station, adjacent to the railroad tracks, bank of a drainage ditch. Comment
  HSC98108  Deschampsia danthonioides Cara Witte 2007-6-20 305 Humboldt National Forest 1. 1/4 mile north of intersection with 5N09. 1434 Comment
  UCD62501  Deschampsia danthonioides A. H. Murphy 1951-5-21 47 Humboldt Prior Ranch, 2 miles S of Blocksburg. Comment
  CAS-BOT-BC201771  Deschampsia elongata H. N. Bolander 1862-1-1 s.n. Humboldt Unspecified 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
  POM207197  Deschampsia elongata Joseph P. Tracy 1901-6-2 1118 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1103217  Deschampsia elongata J. P. Tracy 1901-4-26 1043 Humboldt 6 mi. s. Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  UCR179275  Dicentra formosa R. G. Swinney 1968-3-28 237 Humboldt East of Humboldt State College, Arcata 152 Comment
  CAS-BOT-BC402404  Dicentra formosa subsp. formosa Doris Kildale Gillespie 1931-6-7 10657 Humboldt South Fork Mt., Blake Lookout Comment
  HSC99360  Dicentra formosa subsp. formosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 9 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA433573  Dicentra formosa subsp. formosa Hutchinson 1927-05 s.n. Humboldt [No location data on label] Comment
  SEINET7293094 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1918-1 5014 Humboldt White North Valley 305 Comment
Read comments Apr 22 2016
  UC526838  Dichanthelium acuminatum subsp. lindheimeri Joseph P. Tracy 1928-9-8 8500 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  HSC3000  Dichelostemma capitatum subsp. capitatum Paul Shields May 1955 Humboldt Horse Mountain Comment
  HSC32320  Dichelostemma capitatum subsp. capitatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5654 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC3031  Dichelostemma ida-maia D. E. Anderson 1965-5-15 3710 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  HSC38087  Dichelostemma ida-maia Thomas W. Nelson, Jane P. Nelson 1976-5-30 2608 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC501018  Dichelostemma ida-maia L. R. Abrams 1918-6-15 7108 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  SD90195  Digitalis purpurea Benjamin C. Stone 1952-6-25 137 Humboldt 15 miles south of Klamath. 14 Comment
  RSA68743  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Bull Creek, at South Fork of the Eel River Comment
  OBI36623  Distichlis spicata David J. Keil 1983-7-2 17298 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard Comment
  UC595125  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  HSC70230  Dodecatheon hendersonii M. A. Baker 1980-6-8 1892 Humboldt Near Buck Flat. 1554 Comment
  JEPS9492  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  RSA93304  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt Wood border opening near road about 6 miles N of Garberville Comment
  CAS-BOT-BC70874  Dryopteris arguta Ira L. Wiggins 1932-6-18 5872 Humboldt mouth of Little River Comment
  UCD136409  Dryopteris arguta K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC71053  Dryopteris expansa John Thomas Howell; Gordon H. True; Lewis S. Rose 1972-6-5 48820 Humboldt Patrick Point State Park Comment
  POM118351  Dryopteris expansa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
Read comments Dec 31 2015
  SBBG56296  Dryopteris oregana L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  CAS-BOT-BC428298  Dudleya farinosa W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  HSC91611  Dudleya farinosa E. Mackey 1986-6-16 Humboldt Patricks Point State Park Comment
  HSC44817  Dulichium arundinaceum Bruce G. Marcot 1977-7-21 Humboldt Big Lake Comment
  HSC65139  Dysphania botrys J. P. Smith 1971-10-9 5013 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC98584  Eleocharis macrostachya Cara Witte 2008-7-16 923 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  UC183688  Eleocharis macrostachya Joseph P. Tracy 1909-5-23 2973 Humboldt Eureka 0 Comment
  HSC7341  Eleocharis obtusa J. P. Tracy 1927-8-7 8319 Humboldt Lack Pond in Trinity River Valley opposite mouth of Willow Creek 152 Comment
  RSA246895  Eleocharis radicans Robert F. Thorne, Percy C. Everett 1965-8-9 35342 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  HSC49506  Elodea canadensis R. York 1979-5-19 310 Humboldt Behind the Field House on the E side of the Humboldt State University campus, Arcata. Comment
  CAS-BOT-BC203830  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Mountain; open glades along summit near Blake Lookout 1737 Comment
  HSC76577  Elymus X hansenii D. K. Imper 1981-8-12 908 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  UC212885  Elymus X hansenii Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC38635  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1260 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC175632  Elymus elymoides subsp. elymoides Joseph P. Tracy 1912-7-31 3933 Humboldt Buck Mountain Northern Coast Ranges (summit) 1676 Comment
  HSC58677  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12187 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC40317  Elymus glaucus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2912 Humboldt Along NW side of Lassic Peak (Signal Peak). 1738 Comment
  HSC91890  Elymus glaucus E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  UC1103207  Elymus glaucus J. P. Tracy 1901-6-16 1143 Humboldt Immediate vicinity of Eureka 0 Comment
  UC187094  Elymus glaucus J. P. Tracy 1902-7-4 1760 Humboldt Immediate vicinity of Eureka 0 Comment
  UC53395  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5565 Humboldt Alton Comment
  HSC38942  Elymus mollis subsp. mollis Linda M. Barker 1976-6-1 1563 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CHSC35546  Elymus multisetus James Payne Smith Jr. 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 548 Comment
  RSA10129  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek. 762 Comment
  HSC35708  Epilobium brachycarpum Thomas W. Nelson, B. Reinhardt 1975-7-30 2117 Humboldt E of Pilot Rock Comment
  SEINET187086  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt Roadside Little Van Duzen River 15 miles east of Bridgeville. Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  RSA275298  Epilobium canum subsp. latifolium Thomas W. Nelson 1977-8-6 3722 Humboldt Lassics: serpentine ridge between Blanket Creek and Bear Creek just below Blanket Rock. Unsurveyed section east of T2S, R5E, Sec. 25 1494 Comment
  HSC48320  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-3 311 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC53828  Epilobium ciliatum subsp. ciliatum Griswold, Butler 1979-7-10 6276 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments Aug 3 2007
  UC146135  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1909-7-31 3053 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS39330  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt 4 mi above river mouth (i.e., near Weott); Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  UC583056  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt roadside ditch Clam Beach Comment
  UC1198503  Epilobium densiflorum Joseph P. Tracy 1911-7-11 3509 Humboldt mouth of Supply Creek Northern Coast Ranges, Hoopa Valley 152 Comment
  RSA167260  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt On trail between Box Camp and Croghan [Groghan] Hole, 2 miles east of Box Camp. Trinity Summit Comment
  HSC32548  Epilobium hallianum Thomas W. Nelson 1973-7-10 1031 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC144086  Epilobium minutum Joseph P. Tracy 1908-6-8 2627 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC67212  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5441 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  UC314614  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC171845  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt Along S. Fork of Eel River, vicinity of Garberville 121 Comment
  HSC63171  Epilobium septentrionale M. A. Baker 1979-7-7 1017 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  UC562496  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel River); S. Fork Eel River 121 Comment
  POM168220  Epipactis gigantea Jos Burtt Davy, Walter C. Blasdale 1899-6-28 5895 Humboldt North Coast Ranges: Klamath River near Martins Ferry Comment
  CAS-BOT-BC57104  Equisetum X ferrissii Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1239792  Equisetum laevigatum H. E. Parks and Joseph P. Tracy 1932-5-11 9966 Humboldt along R.R. Samoa; Northern Coast Ranges 6 Comment
  HSC54653  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-25 9861 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC886  Equisetum telmateia subsp. braunii Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  JEPS25329  Equisetum telmateia subsp. braunii Paul C. Hutchison 1961-3-3 885 Humboldt ca. 1/2 mi s Benbow (S Fork Eel River, along U.S. Hwy. 101) Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  CAS-BOT-BC284097  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC68152  Erechtites glomeratus J. O. Sawyer, J. P. Smith 1975-5-24 8081 Humboldt Off Samoa Blvd. across from the boat landing Comment
  RSA47111  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit 1829 Comment
  HSC98529  Erigeron aliceae Cara Witte 2007-6-13 265 Humboldt Along Forest Service Rd. 5N04. Near Grouse Mountain 1538 Comment
  UC468818  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5886 Humboldt Francis Range Comment
  UC895847  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt at mouth of Grizzly Creek (on Van Duzen River); Van Duzen River, Grizzly Creek Comment
  CAS-BOT-BC308077  Erigeron glaucus Kenneth Clark 1980-5-10 646 Humboldt On coastal bluffs of Point Delgada, Shelter Cove 6 Comment
  HSC97812  Erigeron maniopotamicus Cara Witte 2007-6-22 339 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  CAS-BOT-BC214587  Erigeron philadelphicus L. R. Abrams 1922-6-25 8241 Humboldt 2 mi south of Fortuna Comment
  CAS-BOT-BC214591  Erigeron philadelphicus John Thomas Howell 1931-6-17 6717 Humboldt At mouth of Van Duzen River Comment
  SD53196  Erigeron philadelphicus Darley F. Howe 1962-5-21 3297 Humboldt 16 miles north of Garberville on Highway 101. 60 Comment
  UC34163  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt North Coast Ranges, Klamath River 304 Comment
  UC573410  Erigeron philadelphicus var. philadelphicus H. S. Yates 1936-6-23 5855 Humboldt 2 mi se of mouth Mad River; Eureka Quad. 30 Comment
  UC1083059  Eriodictyon californicum P. C. Everett and E. K. Balls 1959-10-24 23953 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt Co. Line); Somesbar to Orleans 198 Comment
  UC562607  Eriodictyon californicum Joseph P. Tracy 1923-6-19 6299 Humboldt e Kings Peak (Wilder Ridge); e of Kings Peak, Wilder Ridge 762 Comment
  SEINET10866398  Eriogonum Mary Susan Taylor 1990-8-22 Taylor 6082 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC70699  Eriogonum compositum Gail Newton 1980-7-15 1553 Humboldt Near Sims Mtn. 1311 Comment
  HSC97578  Eriogonum compositum var. compositum Cara Witte 2007-5-29 140 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC97398  Eriogonum compositum var. compositum Benjamin Hart, Erin Lonergan 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1524 Comment
  CAS-BOT-BC259163  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  CHSC69503  Eriogonum latifolium Vernon Oswald; Lowell Ahart 1997-9-4 8853 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  HSC17294  Eriogonum latifolium H. E. Parks 1924-8-5 2454 Humboldt Little River Lagoon Comment
  LA206930  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  UC6341  Eriogonum latifolium Harley P. Chandler May, 1901 1205 Humboldt Humboldt Bay 3 Comment
  UC54702  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1350 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC49980  Eriogonum nudum var. nudum M. A. Baker 1979-6-7 780 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC176714  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3757 Humboldt Alton 30 Comment
  CAS-BOT-BC267925  Eriogonum umbellatum David Imper 1981-8-12 907 Humboldt Near Tish Tang A Tang Creek, Salmon Mt. Quad 1779 Comment
  HSC75959  Eriogonum umbellatum Overton, Butler 1979-7-24 9739 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC672893  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-28 14329 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1828 Comment
  HSC98098  Eriogonum umbellatum var. goodmanii Cara Witte 2007-6-20 307 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 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
  UC6450 Image available Eriogonum umbellatum var. speciosum Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum; ; Hy-Am-Pum, Humboldt Co. Comment
  JEPS73713  Eriophyllum lanatum var. achilleoides L. R. Heckard with T. I. Chuang 1968-7-5 1985 Humboldt Mail Ridge road 4.3 mi n Harris road Comment
  CAS-BOT-BC301016  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1936-6-10 14929 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 457 Comment
  CAS-BOT-BC301181  Eriophyllum lanatum var. arachnoideum Doris K. Kildale 1927-6-25 3541 Humboldt Shelter Cove Comment
  RSA15568  Eriophyllum lanatum var. arachnoideum C. B. Wolf 1927-8-29 1193 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  UC1199139  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 1/2 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  CAS-BOT-BC301922  Eriophyllum staechadifolium Joseph P. Tracy 1918-7-1 4971 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  CAS-BOT-BC301925  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt Along the highway between Little River and Trinidad Comment
  HSC100406  Eritrichium torreyi Carl C. Marshall 1885-1 5 Humboldt No data. Comment
  UC1198963  Erodium botrys Joseph P. Tracy 1913-6-27 4353 Humboldt McClellan Mt., on the Sweasey place Northern Coast Ranges 609 Comment
  UCR39816  Erodium botrys L. P. Janeway 1984-5-13 771 Humboldt Kneeland/Bridgefield Road c. 5 mi. east of the Kneeland Post Office 762 Comment
  HSC8510  Erodium moschatum Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  CAS-BOT-BC41571  Erysimum capitatum Doris K. Kildale 1928-4-29 5968 Humboldt Horse Mountain. 792 Comment
  UC161542  Erysimum capitatum Joseph P. Tracy July 1908 2904 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap (Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  SEINET14045671 Image available Erythranthe nasuta Joseph P. Tracy 1914-1 4457 Humboldt Plants of Northern Coast Ranges of California; Fort Seward. 122 Comment
  UC1005669  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt top Horse Mountain 1219 Comment
  UC666961  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  UC1541310  Erythronium purpurascens W. K. Parks July 1933 1397 Humboldt South Fork Mountain Comment
  JEPS61877  Erythronium revolutum Ethel Tracy 1907-1 Humboldt Kneeland Prairie Comment
  UC1197642  Erythronium revolutum Joseph P. Tracy 1918-5-28 4938 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC146199  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC403032  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC403035  Eschscholzia californica Doris K. Kildale 1927-6-25 3548 Humboldt Shelter Cove Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  JEPS51802  Eschscholzia californica Joseph P. Tracy 1933-7-16 12793 Humboldt South Fork Mt. North Coast Ranges (top of w slope, near county line) 1676 Comment
  UC1199348  Euchiton gymnocephalus Joseph P. Tracy 1936-8-24 15175 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1199349  Euchiton gymnocephalus Joseph P. Tracy 1936-8-1 15058 Humboldt 6 mi se Blue Lake (hillsides near Canyon Creek) 365 Comment
  UC552228  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges 274 Comment
  HSC37670  Euchiton gymnocephalus R. Sutherland 1976-8-13 9 .13876 Humboldt Old skid road. 259 Comment
  HSC102563  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1550 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC668181  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt woods 3 mi. s.e. of business district Eureka 91 Comment
Read comments May 24 2013
  HSC34947  Euphorbia peplus Dryden 1975-4-20 124 Humboldt Yard 0 Comment
  HSC36485  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-3 2195 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  HSC102649  Festuca californica J. P. Smith 2009-5-31 12610 Humboldt Bald Hills Road. 963 Comment
  HSC39227  Festuca californica D. E. Anderson, J. P. Smith 1971-7-6 1285 Humboldt Horse Mtn. Comment
  UC1103701  Festuca californica Joseph P. Tracy 1911-7-7 3426 Humboldt ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1103703  Festuca elmeri Joseph P. Tracy 1942-5-16 17339 Humboldt Garberville 152 Comment
  CAS-BOT-BC278812  Festuca occidentalis Joseph Burtt Davy; Walter C. Blasdale 1899-5-1 5427 Humboldt Near Hubbard Comment
  CAS-BOT-BC278815  Festuca occidentalis C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC58759  Festuca occidentalis Overton, Butler 1979-7-26 9993 Humboldt Near Willow Creek 1341 Comment
  POM214838  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UCR137175  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville 197 Comment
  UCD66284  Festuca roemeri Collector Unknown 1951-6-18 Humboldt Collected at Snail Ridge near Hydesville. Comment
  SACT001197  Festuca rubra Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes. Comment
  SEINET181178 Image available Festuca rubra Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15065 Humboldt 20 mi N of Eureka Comment
  UC180227  Festuca subuliflora Joseph P. Tracy 1913-6-10 4081 Humboldt near Strong's Station; Northern Coast Ranges, Van Duzen River 152 Comment
  HSC21492  Foeniculum vulgare Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, along elevated area near railroad tracks. Comment
  UC154220  Fragaria chiloensis J. P. Tracy 1906-4-29 2423 Humboldt Eureka, immediate vicinity of Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  JEPS44683  Fragaria vesca Lincoln Constance 1934-6-8 841 Humboldt Cow Creek fire trail South Fork Eel River, Bull Creek Region (from Bull Creek road, n over divide into the headwaters of Bear Creek) Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  CAS-BOT-BC52742  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 mi. west of Garberville. 114 Comment
  CAS-BOT-BC59964  Frangula purshiana W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  UCD112825  Frangula purshiana Roman Gankin 1965-8-6 549 Humboldt on Matolle Road, 7.4 miles northeast of Capetown. Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  CAS-BOT-BC217696  Fraxinus latifolia Doris K. Kildale 1925-6-21 735 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  SEINET6694687 Image available Fraxinus oregona Joseph P. Tracy 1922-1 6060 Humboldt South Yager Creek Valley 762 Comment
  CAS-BOT-BC136029  Fritillaria affinis Doris K. Kildale 1928-5-19 5225 Humboldt Chalk Mountain Comment
  HSC103299  Fritillaria affinis Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest; ~ 0.2 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  HSC15537  Fritillaria affinis D. E. Anderson 1965-5-8 3635 Humboldt 4 mi. E of Berry Summit along Hwy. 299 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
  HSC15544  Fritillaria affinis W. D. Stevens 1964-3-18 12 Humboldt 1.0 mi. S of Trinidad on Old Hwy. 101 Comment
  CDA43226  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka; by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  HSC70724  Galium aparine Gail Newton 1980-7-14 1519 Humboldt Near Deadman Ridge 1097 Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  HSC71791  Galium bolanderi Gail Newton 1980-6-16 179 Humboldt Near Monks Camp. 1097 Comment
  JEPS6692  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  SEINET10876857  Galium californicum subsp. californicum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13009 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  UC1196102  Galium parisiense Joseph P. Tracy 1916-6-19 4719 Humboldt at Forks of Dobby Creek Northern Coast Ranges 182 Comment
  BLMAR206  Galium parisiense Jennifer Anthony-Wheeler 1996-7-9 206 Humboldt Pilots ridge., growing in warm, dry, rocky soil in understroy in mixed hardwood forest 1280 Comment
  HSC79485  Galium porrigens var. porrigens Kenneth Clark 1980-3-1 508 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 37 Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  HSC99083  Galium triflorum Cara Witte 2008-7-28 954 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  CAS-BOT-BC200581  Garrya buxifolia L. R. Abrams 1918-6-15 7109 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC72801  Garrya buxifolia Gail Newton 1980-6-17 212 Humboldt Near Onion Mtn. 1341 Comment
  HSC103981  Garrya elliptica C. Reynolds 2015-4-12 28 Humboldt Just before entrance onto footpath at Freshwater Beach from Kuchel Visitor Center 1 Comment
  HSC8386  Garrya elliptica L. Lankow 1968-11-17 Humboldt Patrick's Point State Park Comment
  HSC91891  Garrya elliptica E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  HSC8392  Garrya fremontii C. B. Wolf 1930-10-24 1762 Humboldt Along Klamath River 1.0mi above mouth of Slate Creek 244 Comment
  UC1196892  Garrya fremontii Joseph P. Tracy 1939-8-16 16408 Humboldt Horse Mountain 1432 Comment
  HSC9992  Gastridium phleoides True Hoyle 1967-7-9 27967 Humboldt 2 mi. NW from the junction of Fickle Hill and Butler Valley Rds. 457 Comment
  POM207448  Gastridium phleoides Joseph P. Tracy 1900-9-9 951 Humboldt Bar of Yager Creek, near Hydesville. 61 Comment
  RSA120510  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt South slope along Bar Shanty Road, 5 miles from Orleans. 488 Comment
  HSC7819  Gaultheria ovatifolia D. E. Anderson 1965-6-1 3761 Humboldt Horse Mountain. 1220 Comment
  HSC95595  Gaultheria shallon Andrea Pickart 2002-6-30 140 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 30 Comment
  UC1197591  Gaultheria shallon Joseph P. Tracy 1911-7-11 3505 Humboldt near Willow Creek (at w side of Trinity River, ridge between Brett's Ranch and Hoopa Valley); Northern Coast Ranges, Trinity River 304 Comment
  UC1541490  Gaultheria shallon W. K. Parks 1932-6-1 1404 Humboldt vicinity of Trinidad 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
  UCD117455  Gaultheria shallon D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  SEINET2031090 Image available Gaultheria shallon Joseph P. Tracy 1908-1 2863 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  HSC16391  Gayophytum diffusum J. P. Tracy 1933-8-30 13045 Humboldt Grouse Mtn. 1524 Comment
  HSC55107  Gayophytum diffusum subsp. parviflorum G. L. Clifton 1979-7-31 11848 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS27564  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC549765  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountains 1737 Comment
  JEPS27601  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC208037  Genista monspessulana Elmer I. Applegate 1931-3-28 6627 Humboldt Redwood Highway, near Dyrville Comment
  JEPS47047  Gentiana affinis var. ovata W. L. Jepson 1902-8-1 2134 Humboldt Loleta 60 Comment
  HSC57988  Gentiana plurisetosa G. L. Clifton, Griswold 1979-7-31 11730 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS24355  Gentiana plurisetosa Mary H. Manning 1900-1 Humboldt Trinity Summit Comment
  UC1197395  Geranium molle Joseph P. Tracy 1911-7-9 3463 Humboldt near Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1198956  Geranium molle Joseph P. Tracy 1937-5-17 15293 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD103408  Geranium molle Joseph M. DiTomaso 1976-3-28 346 Humboldt Samoa Cookhouse in Samoa. Comment
  UC1198722  Geum macrophyllum Joseph P. Tracy 1936-8-7 15086 Humboldt head of Little Hors-Linto Creek, Trinity Summit Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  SEINET200731  Gilia capillaris Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mtn. 1524 Comment
  HSC54667  Gilia capitata Overton, Butler 1979-7-25 9904 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  UC907950  Gilia capitata subsp. capitata Joseph P. Tracy 1935-7-29 14345 Humboldt brushy ridge 1 mi ne Ranger Station (Trinity Summit); Trinity Summit 1676 Comment
  SD42478  Gilia capitata subsp. chamissonis Carl B. Wolf 1937-8-11 8901 Humboldt Fleener creek, 1/2 mi. South of Centerville 46 Comment
  CAS-BOT-BC225470  Gilia millefoliata Mrs. H. C. Cantelow 1935-5-31 825 Humboldt Unspecified Comment
  HSC16993  Gilia millefoliata Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  UC1197907  Gilia millefoliata Joseph P. Tracy 1931-6-15 9583 Humboldt sandy ground along bay shore at Bucksport (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  HSC70953  Githopsis specularioides R. York 1980-5-17 522 Humboldt Near Le Perron Peak 792 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
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  HSC58634  Glyceria elata Gilbert Muth 1979-7-31 11530 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC187282  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC92863  Glyceria fluitans Gordon Leppig 1995-4-6 243 Humboldt Arcata, Alder Grove Pond. 12 Comment
  HSC100452  Gnaphalium Carl C. Marshall Sep 1886 346 Humboldt North Fork. Comment
  CAS-BOT-BC302619  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  JEPS33992  Gnaphalium palustre W. L. Jepson 1921-8-7 9331 Humboldt Stone Lagoon Comment
  UC582517  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC98555  Goodyera oblongifolia Cara Witte 2007-9-3 643 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  UC179960  Goodyera oblongifolia Joseph P. Tracy 1914-8-30 4595 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  JEPS4220  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  HSC37692  Grindelia hirsutula R. Sutherland 1976-8-6 13 .6876 Humboldt Disturbed edge of county road, just W of China Creek 223 Comment
  HSC89904  Grindelia hirsutula Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  UC665533  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  RSA18065  Grindelia stricta var. stricta C. B. Wolf 1927-8-22 783 Humboldt Big Lagoon. Comment
  RSA47124  Grindelia stricta var. stricta Doris K. Kildale 1925-7-15 1080 Humboldt Eureka Slough. Comment
  JEPS67922  Hackelia californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 9024 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA167310  Hackelia californica Joseph P. Tracy 1948-8-15 18154 Humboldt Trinity Summit, on ridge 2 miles east of Grove s Prairie. 1524 Comment
  JEPS79900  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1222256  Hackelia setosa Joseph P. Tracy 1950-7-2 18970 Humboldt top of ridge near Elk Camp (e of Groves Prairie); Trinity Summit 1371 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
  POM160314  Hastingsia serpentinicola Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain. 1463 Comment
  CAS-BOT-BC306611  Helenium bigelovii Paul F. Covel 1937-7-14 1047 Humboldt Loleta Comment
  CAS-BOT-BC306864  Helenium bolanderi Doris K. Kildale 1926-7-16 2384 Humboldt Big Lagoon Comment
  HSC96485  Helenium bolanderi Gordon Leppig 1997-6-19 453 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  POM161461  Helenium bolanderi Joseph P. Tracy 1912-7-22 3792 Humboldt Near Loleta. 91 Comment
  UC1070058  Helminthotheca echioides H. L. Person 1932-8-20 19487 Humboldt Korbel Eureka Quad. Korbel Comment
  HSC63140  Hemitomes congestum M. A. Baker 1979-6-29 952 Humboldt 900 Comment
  RSA255766  Hemitomes congestum Gary D. Wallace, S. Carlquist 1972-6-30 1102 Humboldt Prairie Crrek Redwoods Stl. Pk. near the coast. Comment
  CAS-BOT-BC310073  Hemizonella minima R. K. Gierisch; D. H. Esplin 1969-7-1 3535 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  HSC96210  Hemizonella minima J. McIntire, S. Lyon 2005-6-10 10 Humboldt Ca. 0.7 mi. due W of Spike Buck Mtn. off F.S. Road NF1 1610 Comment
  HSC35622  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, B. Reinhardt 1975-7-30 2123 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC309983  Hemizonia congesta subsp. tracyi Richard Spellenberg 1965-6-14 1129 Humboldt Kneeland Prairie, at Kneeland Airport, 6 mi. s.e. of Kneeland Comment
  CAS-BOT-BC309998  Hemizonia congesta subsp. tracyi Thomas Nelson; Jane Nelson; James Nelson 1975-6-21 1950 Humboldt Beside highway 36 ca. 5 mi. east of Bridgeville Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC1199373  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1921-6-12 5817 Humboldt Kneeland Prairie 762 Comment
  UC1245364  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt Buck Mt. Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC495619  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  UC673044  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  BLMAR674  Heracleum maximum Jennifer Wheeler 2013-6-7 674 Humboldt King range, Mattole Beach parking lot 6 Comment
  HSC56157  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 12022 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1116245  Heterocodon rariflorum Joseph P. Tracy 1942-6-15 17158 Humboldt Garberville 304 Comment
  SEINET10460607  Heterocodon rariflorum Willis L. Jepson Jepson 16394 Humboldt GARBERVILLE Comment
  BLMAR190  Heteromeles arbutifolia Donald Hazlett 1994-6-7 190 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC32931  Heuchera micrantha Thomas W. Nelson, James Nelson 1973-5-28 951 Humboldt McKeown Ranch N of Dinsmore Comment
  BLMAR81  Heuchera micrantha Jennifer Anthony-Wheeler 1994-6-2 81 Humboldt IAQUA, growing along moist, rocky banks 3/4mi from pvd 853 Comment
  CAS-BOT-BC420721  Heuchera micrantha var. diversifolia L. R. Abrams 1916-7-10 5960 Humboldt Between Harris and Alder Pt., southern Humboldt County Comment
  CAS-BOT-BC425003  Heuchera micrantha var. micrantha Huron H. Smith 1911-6-6 3794 Humboldt Little River Jc. Comment
  HSC57002  Hieracium albiflorum Overton, Butler 1979-7-24 9588 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  HSC98116  Hieracium albiflorum Cara Witte 2007-6-27 371 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  POM289677  Hieracium albiflorum Lyman Benson 1928-7-12 485 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC318530  Hieracium greenei Freed W. Hoffman 1949-7-15 3010 Humboldt East slope of Mule Slide, Franciscan sandstone, Mt. Lassic group a little south of Blue Ridge Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  RSA183516  Hierochloe occidentalis G. N. Bos 1965-5-2 248 Humboldt 8 miles east of Korbel on Bald Mountain Road 793 Comment
  CDA38204  Hippuris vulgaris E. C. Whitney 1962-7-23 s.n. Humboldt Pepperwood; R. Wallen property. 0 Comment
  HSC59498  Hippuris vulgaris M. A. Erickson 1979-4-20 210 Humboldt Clam Beach ponds, .3 mi. S of Cranell Rd. and Little River Dr., 16 mi. N of Eureka Comment
  HSC59684  Hirschfeldia incana George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  HSC10139  Holcus lanatus W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  HSC10140  Holcus lanatus N. R. Waite 1965-5-21 54 Humboldt W edge of Humboldt State College Campus. Comment
  HSC10141  Holcus lanatus D. E. Anderson 1961-8-11 1730 Humboldt E of Humboldt State College campus. 30 Comment
  HSC69584  Holcus lanatus R. Kalal 1980-6-8 1 Humboldt Pump Station #1 14 Comment
  HSC71745  Holcus lanatus M. A. Baker 1980-6-26 2429 Humboldt Near Sims Creek 610 Comment
  SACT001293  Holcus lanatus Lyle Bibb 1963-5-11 Humboldt Comment
  UC1103732  Holcus lanatus Joseph P. Tracy 1934-7-2 13295 Humboldt Trinidad 3 Comment
  CAS-BOT-BC149908  Holodiscus discolor Clarence R. Quick 1959-7-24 59 -26 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC58057  Holodiscus discolor G. L. Clifton, Griswold 1979-8-1 11927 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC64166  Holodiscus discolor J. O. Sawyer, K. A. Sawyer 1979-6-24 3410 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC1198706  Holodiscus discolor Joseph P. Tracy 1932-7-18 10718 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole Head of Brett Hole; Klamath Mountains, Trinity Summit, Head of Brett Hole 1828 Comment
  CAS-BOT-BC149898  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  CAS-BOT-BC281265  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  UC1541544  Hordeum brachyantherum subsp. brachyantherum Harold E. Parks 1934-6-1 4934 Humboldt marsh road to Samoa (Arcata); Arcata 0 Comment
  HSC10192  Hordeum jubatum J. P. Tracy 1927-7-16 8249 Humboldt Mouth of Elk River. 3 Comment
  CAS-BOT-BC536626  Horkelia californica Milo S. Baker 1931-7-17 5409 Humboldt A few mile south of Eureka along Redwood Highway Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  HSC96008  Horkelia tridentata Juha Pykala, D. H. Norris 1987-6-11 1647 Humboldt Hoopa Indian Reservation, Big Hill Rd. 1 mi. SE of Big Hill 869 Comment
  UC1198716  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1933-6-13 12593 Humboldt near summit (on rd w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mt. 914 Comment
  HSC96954  Horkelia tridentata var. flavescens Ryoko Ito, Shauna McDonald 2007-6-11 3 Humboldt 11.9 mi. above Hwy. 299 1585 Comment
  UCSB3139  Hosackia gracilis Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. north of Trinidad Comment
  HSC99466  Hosackia oblongifolia var. oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 120 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CHSC866  Hosackia rosea V. Holt 1941-5-30 Humboldt Comment
  CDA20057  Hydrocotyle ranunculoides R. Spadoni, Green 2002-10-9 PDR P 070866 -B Humboldt Pacific Lumber Co, Scotia. 0 Comment
  HSC40551  Hydrophyllum occidentale Thomas W. Nelson, Jane P. Nelson 1976-5-23 2522 Humboldt SW facing slopes 1666 Comment
  JEPS1645  Hydrophyllum occidentale Joseph P. Tracy 1935-7-16 13955 Humboldt lower foothills nw slope Buck Mountain 792 Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  UC1239768  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-2 15403 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC673117  Hydrophyllum tenuipes Joseph P. Tracy 1940-5-17 16545 Humboldt flat near McClellan ranch house; McClellan Mt. 609 Comment
  HSC53845  Hypericum anagalloides Griswold, Butler 1979-7-10 6307 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1198416  Hypericum anagalloides Joseph P. Tracy 1933-8-27 13003 Humboldt Harris 762 Comment
  CAS-BOT-BC400794  Hypericum anagalloides Doris K. Kildale 1928-7-29 5933 Humboldt Kinman Pond. Bear River Ridge Comment
  UC1103552  Hypericum anagalloides Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges, Christmas Prairie 914 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
  JEPS79906  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek; Trinity R. Valley, Lack Pond 152 Comment
  UC1198400  Hypericum perforatum Joseph P. Tracy 1934-7-9 13346 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC401230  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  HSC39792  Hypochaeris glabra Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  HSC60062  Hypochaeris glabra M. A. Baker 1978-5-6 491 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC311433  Hypochaeris radicata Frank W. Peirson 1923-7-9 3934 Humboldt Auto camp on Eel River, Humboldt County State Park Comment
  CAS-BOT-BC206844  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  UC527558 Image available Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick; Davison's Ranch on Prairie Creek 60 Comment
Read comments Feb 27 2012
  SEINET5536070 Image available Impatiens glandulifera W. J. Ferlatte, B. D. Rogers 1966-1 3128 Humboldt Lampheres Garden Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196394  Iris douglasiana Joseph P. Tracy 1934-8-31 13644 Humboldt Kneeland Prairie 762 Comment
  UCR138875  Iris douglasiana J. Marshall, J. Savage, L. Allison 1997-3-15 3 Humboldt Hwy 36, 0.5 mi west of Bridgeville 183 Comment
  JEPS17228  Iris douglasiana Joseph P. Tracy 1935-6-23 14001 Humboldt road e Orick; Bald Hills 609 Comment
  UC702924  Iris douglasiana Alice Eastwood and John Thomas Howell 1937-6-23 4845 Humboldt 5 mi from Kneeland (on road to Yager) Comment
  SEINET12056923  Iris purdyi J. P. Tracy 1950-1 18950 Humboldt at "Friday Camp", Friday Ridge. Grouse Mountain 1219 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
  HSC67518  Iris tenuissima J. P. Smith, J. O. Sawyer 1976-5-2 8620 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  OBI36658  Iris tenuissima David J. Keil 1983-7-2 17311 Humboldt Ca 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mtn Summit Rd Comment
  UCR32156  Iris tenuissima David J. Keil 1983-7-2 17311 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UC667943  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold springs Grouse Mt. 1432 Comment
  HSC7449  Isolepis cernua D. E. Anderson 1961-9-2 1763 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UC198638  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt around, Salmon Creek Valley Humboldt Bay; Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  JEPS93182  Jaumea carnosa Margriet Wetherwax and Kevin Downing 1993-8-9 2463 Humboldt n Eureka (along n side of slough, Jacobs St. turn-off of 101N just beyond bridge over slough, between 2 Peterbilt warehouses); Eureka Slough 5 Comment
  RSA216153  Juncus articulatus G. H. True 1965-9-28 2654 Humboldt Klamath River at Boise Creek, 2 1/2 miles southwest of orleans. 137 Comment
  HSC45436  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4402 Humboldt Wet alluvial soil at Lost Lake 1433 Comment
  RSA340075  Juncus breweri Harold Lint 1964-4-1 C- 306 Humboldt Dry Lagoon State Park, Highway 101. Comment
  HSC39770  Juncus bufonius Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  SEINET7421723 Image available Juncus bufonius H. E. Parks, S. T. Parks 1943-1 24254 Humboldt Spruce Cove, Trinidad 61 Comment
  UC14890  Juncus covillei var. obtusatus Chesnut and Drew 1888-7-29 Humboldt Grouse Creek Comment
  POM273046  Juncus effusus subsp. pacificus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  RSA246800  Juncus effusus subsp. pacificus Robert F. Thorne, Percy C. Everett 1965-8-5 35143 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  JEPS49053  Juncus exiguus Hilda W. Grinnell 1932-7-22 43 Humboldt near Blake Lookout (below and s of U.S.G.S. signal rock); South Fork Mt. 1737 Comment
  HSC91872  Juncus hesperius E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC56395  Juncus laccatus Terry Griswold, Marvin Butler 1979-7-11 6963 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek 1320 Comment
  HSC102215  Juncus mertensianus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1131 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC57961  Juncus orthophyllus G. L. Clifton, Griswold 1979-7-31 11662 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC71742  Juncus oxymeris M. A. Baker 1980-6-26 2422 Humboldt Near Sims Creek 610 Comment
  HSC98789  Juncus patens Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC14884  Juncus patens J. P. Tracy 1900-9-3 935 Humboldt immediate vicinity Eureka 0 Comment
  BLMAR324  Juncus patens Jennifer Wheeler 2002-8-9 324 Humboldt Lost Coast Headland, Guthrie creek edge along Guthrie creek trail 6 Comment
  UC1103046  Juncus phaeocephalus Joseph P. Tracy 1921-7-10 5854 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1601806  Juncus phaeocephalus Harley P. Chandler May 1901 1123 Humboldt Humboldt Bay North Coast Ranges 30 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
  CAS-BOT-BC235890  Keckiella corymbosa Carl D. Duncan 1920-9-21 333 Humboldt Hoopa Comment
  HSC23720  Keckiella corymbosa Tim Baroni 1971-7-5 96 Humboldt W bank of the Mattole River Comment
  RSA167236  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt On rock ledges at Ishi-pishi Falls west side of Klamath River opposite mouth of Salmon River. Comment
  RSA79855  Keckiella corymbosa F. W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec. Comment
  UC162566  Keckiella lemmonii Joseph P. Tracy 1911-7-11 3504 Humboldt opposite Sugar Bowl Ranch (near Willow Creek, hill slopes at w side of Trinity River, opposite Sugar-bowl ranch); Northern Coast Ranges 304 Comment
  UC35327  Kelloggia galioides Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  RSA121249  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC552314  Lactuca biennis Joseph P. Tracy 1934-8-14 13583 Humboldt near Myers; North Coast Ranges 60 Comment
  UCD133521  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie. 762 Comment
  UC1239535  Lactuca serriola Joseph P. Tracy 1934-8-14 13577 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  RSA170207  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt Frank Graham's orchard; Trinity River Valley, at Willow Creek. 152 Comment
  JEPS19954  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  UC1199155  Lagophylla ramosissima Joseph P. Tracy 1924-8-10 6808 Humboldt Blue Slide on Van Duzen; Northern Coast Ranges 91 Comment
  POM56119  Lapsana communis Joseph P. Tracy 1918-6-23 4957 Humboldt Around Humboldt Bay: Outskirts of Arcata. 61 Comment
  UC1199125  Lasthenia californica subsp. californica J. P. Tracy 1901-4-14 1026 Humboldt Ocean Beach at Samoa; Opp. Eureka Comment
  CAS-BOT-BC324411  Lasthenia californica subsp. macrantha M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC352933  Lasthenia glaberrima Joseph P. Tracy; Harold E. Parks 1935-6-16 11274 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  UC552256  Lasthenia glaberrima Harold E. Parks and Joseph P. Tracy 1935-6-16 11274 Humboldt lower nw slopes Buck Mt. 792 Comment
  UC1222399  Lathyrus glandulosus Joseph P. Tracy 1942-7-26 17298 Humboldt near Redwood House; Valley of South Yager Creek 609 Comment
  UC1222418  Lathyrus glandulosus Joseph P. Tracy 1949-6-20 18313 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  JEPS64857  Lathyrus lanszwertii var. lanszwertii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  CAS-BOT-BC94773  Lathyrus latifolius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 833 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
  RSA34308  Lathyrus littoralis C. Kistner 1935-5-21 s.n. Humboldt Samoa Comment
  JEPS79916  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt Northern Coast Ranges, South Yager Creek Valley South Yager Creek Valley; Northern Coast Ranges, South Yager Creek Valley 762 Comment
  CAS-BOT-BC205043  Lathyrus palustris Malcom A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt At the southern outskirts of Eureka Comment
  JEPS55333  Lathyrus palustris Joseph P. Tracy 1907-7-20 2593 Humboldt near Samoa (Region about Humboldt Bay, Northern Coast Region); Northern Coast Region 0 Comment
  UCD106338  Lathyrus palustris Malcolm A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt Southern outskirts of Eureka. Comment
  UC1222409  Lathyrus polyphyllus Joseph P. Tracy 1948-8-15 18118 Humboldt 1 1/2 miles north of Forest Service Public Camp on Trinity Summit Road. Happy Camp Mountain (In Trinity Summit Range, 6 miles northeast of Hawkins Bar.) Comment
  UC1222408  Lathyrus polyphyllus Joseph P. Tracy 1949-8-11 18474 Humboldt 2-6 mi s Grouse Mt. (ridge e of headwaters of Redwood Creek, where power line crosses); Kinsey Ridge 1280 Comment
  UCD106339  Lathyrus polyphyllus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  UC1222398  Lathyrus vestitus Joseph P. Tracy 1949-7-4 18327 Humboldt 2 mi e Kneeland (on the Butter Valley Road) 609 Comment
  UC175635  Lathyrus vestitus Joseph P. Tracy 1913-6-26 4352 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC81920  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson, Jane P. Nelson 1979-7-3 4967 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC24421  Lavatera cretica Wilbur Peterson 1972-5-9 717 Humboldt Samoa peninsula, along road leading to Samoa Cookhouse Comment
  CAS-BOT-BC325927  Layia carnosa W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  JEPS13464  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  POM318724  Leontodon leysseri Patricia Wilder 1968-8-21 4397 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  RSA246941  Leontodon leysseri R. F. Thorne, P. C. Everett 1965-8-8 35234 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA18016  Leontodon nudicaulis C. B. Wolf 1927-8-22 777 Humboldt Big Lagoon. Comment
  SEINET3245528  Leontodon saxatilis R. Spellenberg, N. Zucker 2011-1 14301 Humboldt Miranda, on the W side of highway in center of town. 110 Comment
  HSC59676  Leontodon saxatilis subsp. saxatilis George Kirn 1977-10-30 Humboldt 1/2 mi. from mouth of Elk River 8 Comment
  UC582428  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1933-8-22 12982 Humboldt near Fields Landing (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  CAS-BOT-BC89074  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 0.25 mile west of its junction with Arcata, in Bayside. 15 Comment
  UC1225756  Lepidium latipes Joseph P. Tracy 1948-5-31 17991 Humboldt Harris 762 Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  CAS-BOT-BC13039  Lepidium virginicum var. menziesii Volney Rattan 1878-1-1 s.n. Humboldt Hoopa Valley. Comment
  HSC45056  Leptosiphon androsaceus R. Sutherland 1978-4-23 34 .23478 Humboldt 558 Comment
  POM203227  Leptosiphon androsaceus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  BLMAR78  Leptosiphon bicolor Jennifer Anthony-Wheeler 1994-6-2 78 Humboldt IAQUA, growing beside logging rd, dry, open grassland 780 Comment
  HSC35595  Leptosiphon nuttallii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2006 Humboldt French Camp, Bald Hills. Comment
  RSA135357  Leptosiphon nuttallii Volney Rattan 1878-1 s.n. Humboldt [no additional locality data provided] 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
  SEINET11810782  Lessingia nemaclada var. mendocina H. P. Chandler 1901-1 1503 Humboldt Klamath River, North Coast Ranges 427 Comment
  SEINET3071950  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-1 2885 Humboldt Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 150 Comment
  HSC48387  Lewisia leeana Brad Klipfel 1973-6-10 111 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC104437  Lewisia nevadensis Greg O'Connell 2013-5-16 Humboldt North of Board Camp Mountain, southeast of Snow Camp Mountain. Comment
  HSC38789  Lewisia nevadensis J. P. Smith 1976-5-30 8827 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  RSA623752  Leymus mollis subsp. mollis T. Gertrude Williamson 1924-7-12 251 Humboldt Between Trinidad and Arcata Comment
  HSC75877  Ligusticum apiifolium Bill Copeland 1980-7-2 575 Humboldt Near Snow Camp Mtn. 1311 Comment
  JEPS17503  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  UC183660  Ligusticum apiifolium Joseph P. Tracy 1912-8-3 3970 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  HSC89328  Lilium columbianum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  HSC89438  Lilium columbianum P. A. Daly 1984-6-16 28 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  HSC49927  Lilium kelloggii Maralyn O'Meara 1974-7-17 548 Humboldt Along Kneeland rd. across from Kneeland Post Office Comment
  UC666960  Lilium kelloggii Joseph P. Tracy Aug 1934 13643 1/2 Humboldt w edge Kneeland Prairie Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UC175928  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1198235  Lilium pardalinum Joseph P. Tracy 1924-7-4 6714 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  HSC56955  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9465 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC15586  Lilium pardalinum subsp. pardalinum D. G. Hauger 1967-7-15 52 Humboldt Comment
  HSC63836  Lilium pardalinum subsp. pardalinum M. A. Baker 1979-6-29 951 Humboldt 900 Comment
  RSA130783  Lilium pardalinum subsp. vollmeri Albert M. Vollmer 1949-7-1 2 Humboldt Bog on Bald Mountain Comment
  CAS-BOT-BC132967  Lilium rubescens Alice Eastwood; John Thomas Howell 1937-6-22 4730 Humboldt Near Alder Point Comment
  HSC72679  Lilium rubescens J. P. Smith 1977-7-3 9243 Humboldt Road to Onion Mtn., 1/4 mile from its junction with USFS Rd. 10N41 762 Comment
  UC1198228  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1947-7-9 17863 Humboldt Horse Mountain 1432 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC594241  Limnanthes douglasii S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3407 Humboldt Burr Valley Buck Mountain 1036 Comment
  UC1197415  Limnanthes douglasii Joseph P. Tracy 1927-5-8 7981 Humboldt Phillipsville Northern Coast Ranges (facing South Fork of Eel River) 121 Comment
  UC1198585  Linanthus ciliatus Joseph P. Tracy 1908-6 2823 Humboldt nw slope Black Mountain; Northern Coast Ranges 914 Comment
  UC908238  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  UC52409  Linanthus filipes Mrs. M. H. Manning Humboldt Hoopa Comment
  UCR52359  Linanthus parviflorus K. Berg, R. Bonning 1983-5-21 479 Humboldt Chezem Road, 2.1 mi. east of Redwood Creek Bridge. 595 Comment
  RSA0087555  Linnaea borealis subsp. longiflora S. S. Tillett 1956-7-6 614 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  JEPS12691  Linnaea borealis var. longiflora W. L. Jepson Jul 16 1902-Jul 23 1902 Humboldt Hupa Trail Trinity Summit; , Hupa Trail 2133 Comment
  UCD73084  Linnaea borealis var. longiflora Linda M. Barker 1976-6-14 1588 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC1561309  Linum bienne Barbara Ertter with Thomas J. Delendick 1987-5-16 6911 Humboldt 8 mi e of Arcata (9 1/2 mi w of Lord Ellis Summit, Highway 299 roadside); Highway 299 Comment
  CDA4728  Linum bienne T. C. Fuller 1958-6-17 602 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  SDSU8125  Linum bienne D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101. Comment
  CAS-BOT-BC136462  Listera cordata Doris K. Kildale 1926-3-21 1592 Humboldt Field redacted by CAS, contact the data manager for more information 609 Comment
  CAS-BOT-BC36106  Lithocarpus densiflorus var. densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie Comment
  HSC99457  Lithophragma campanulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 110 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
  UC50709  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6201 Humboldt Russ Ranch; North-Western California Comment
  UC249794  Lolium temulentum Joseph P. Tracy 1923-6-27 6382 Humboldt Trinity River Valley, near the South Fork; Northern Coast Ranges, Trinity River Valley, near South Fork 182 Comment
  UC33879  Lolium temulentum Chesnut and Drew 1888-7-13 Humboldt Campbell's Comment
  UC1103401  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1924-3-9 6610 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC70249  Lomatium macrocarpum M. A. Baker 1980-6-8 1914 Humboldt Near Buck Flat. 1554 Comment
  HSC97458  Lomatium nudicaule Cara Witte 2007-5-29 125 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC32228  Lomatium triternatum var. triternatum J. O. Sawyer 1970-6-24 2227 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  UC154111  Lomatium utriculatum J. P. Tracy 1904-5 2043 Humboldt immediate vicinity Eureka (restricted to small patch on bluff at Bucksport); Bucksport 0 Comment
  HSC58297  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12570 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  BLMAR175  Lonicera hispidula Donald Hazlett 1994-6-7 175 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC240472  Lonicera hispidula Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Hartsook Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC3942  Lonicera hispidula var. vacillans W. D. Stevens 1967-7-16 44 Humboldt Along dirt rd. from Hwy. 101 to top of N bank of Mad River. Comment
  UC1239559  Lonicera hispidula var. vacillans Joseph P. Tracy 1938-7-5 16000 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC95659  Lonicera hispidula var. vacillans Steven Lee 2004-4-25 22 Humboldt South Fork Rd., from Hwy. 299 to County Rd. 341, 1/8 mi. down river access trail at end of Rd. Comment
  UCSB22320  Lonicera involucrata Keefe, Joseph 1967-7-8 Humboldt Junction Crannell Road and Little River Drive, north of Eureka 6 Comment
  SEINET5222458  Lonicera involucrata Unknown 2002-8-22 85 Humboldt McKinleyville, along Fischer Road just N of the Mad River Comment
  UC1239558  Lonicera involucrata var. ledebourii Joseph P. Tracy 1933-5-20 12219 Humboldt Capetown Bear River 30 Comment
  HSC24921  Lotus aboriginus D. E. Anderson 1965-5-8 3666 Humboldt Hwy. 299, E of Blue Lake, between bridge over N Fork Mad River and Lord Ellis Summit. Comment
  UCSB30598  Lotus corniculatus Edwards, David 1974-7-13 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  RSA275285  Lotus crassifolius Thomas W. Nelson, Jane Nelson, A. Nelson 1977-7-4 3614 Humboldt Along road north from Alder Springs. 1524 Comment
  UC1046517  Lotus denticulatus R. Bacigalupi, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Dinsmore Comment
  UC1223406  Lotus denticulatus Joseph P. Tracy 1933-6-25 12625 Humboldt 3 mi above Eel River Bar junction of the South Fork (Eel River Bar at Camp Grant); Eel River Bar Comment
  HSC98249  Lotus formosissimus H. E. Parks, S. T. Parks Jun 1952 24449 Humboldt Spruce Cove, Trinidad 61 Comment
  UC1197310  Lotus formosissimus J. P. Tracy 1901-6-30 1200 Humboldt immeditate vicinity Eureka 0 Comment
  UC1223400  Lotus formosissimus Joseph P. Tracy 1938-6-17 15949 Humboldt s of Cape Mendocino point; Cape Mendocino 3 Comment
  UC15617  Lotus humistratus C. C. Marshall 1888-1 Humboldt Comment
  CDA27277  Lotus micranthus E. C. Whitney 1959-5-6 Humboldt Highway 101, south of Eureka. (Brown property) 0 Comment
  RSA21446  Lotus yollabolliensis C. B. Wolf 1937-8-12 9210 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  UC1223410  Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt near McKay Camp (near top of South Fork Mountain); South Fork Mountain 1676 Comment
  HSC58199  Luina hypoleuca Walter Overton 1979-8-2 12302 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  UC503012  Lupinus adsurgens Joseph P. Tracy Jul 16 1930-Jul 19 1930 9059 Humboldt near Blake lookout, South Fork Mountain along summit; Northern Coast Ranges, South Fork Mountain 1737 Comment
  RSA167388  Lupinus adsurgens var. adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt Ski Lodge, Horse Mtn. 1220 Comment
  RSA406972  Lupinus albicaulis var. albicaulis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  SEINET12170729  Lupinus albifrons E. A. York 1990-1-10 2659 Humboldt USGS Redwood Field Station, Arcata Comment
  CAS-BOT-BC196399  Lupinus arboreus R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-3 178 Humboldt On sand dunes of Clam Beach Comment
  HSC42162  Lupinus arboreus R. J. Mastrogiuseppe, J. D. Mastrogiuseppe 1974-9-3 178 Humboldt Clam Beach Comment
  SBBG115192  Lupinus arboreus D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, 1 mi N of Arcata Airport on Hwy 101 Comment
  RSA331967  Lupinus arboreus var. arboreus Dave Kelly, Walter Wisura, A. Kelly 1985-7-28 4065 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  HSC73959  Lupinus bicolor Gail Newton 1980-6-7 131 Humboldt Near Brush Mtn. 1128 Comment
  UC503009  Lupinus bicolor Joseph P. Tracy 1932-5-1 9889 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC45091  Lupinus bicolor R. Sutherland 1978-4-23 1 .23478 Humboldt Head of Kinsey (Fraser) Ridge 716 Comment
  RSA296803  Lupinus bicolor subsp. microphyllus Lincoln Constance 1934-5-26 664 Humboldt S. Ford of eel River, S. end of Dyerville Bridge. 46 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  UC1223282  Lupinus formosus Joseph P. Tracy 1941-9-1 16997 Humboldt Blue Lake Comment
  SEINET12165812  Lupinus formosus J. T. Vale 1988-1 s.n. Humboldt nr Honeydew Comment
  BLMAR167  Lupinus latifolius Donald Hazlett 1994-6-7 167 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC57309  Lupinus latifolius Griswold, Butler 1979-7-10 6265 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA161252  Lupinus latifolius subsp. latifolius Peter H. Raven, R. Snow 1958-7-20 13645 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  UC1223265  Lupinus latifolius var. latifolius Joseph P. Tracy 1939-7-9 16339 Humboldt Snow Camp Comment
  UC503015  Lupinus latifolius var. viridifolius Joseph P. Tracy 1929-7-4 8624 Humboldt French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC14930  Lupinus pachylobus H. E. Parks 1930-5-25 871 Humboldt Laribee Valley 762 Comment
  UC1197251  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1907-6-25 2576 Humboldt mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Elk River 0 Comment
  HSC14863  Lupinus rivularis J. L. Baker 1965-4-28 29 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  HSC76513  Lupinus tracyi T. Jimerson 1981-8-5 901 Humboldt 1829 Comment
  HSC93220  Lupinus variicolor Ananda Dickie, Wendy Hooper, Rose Madrone, Kyla Waddell 1996-5-12 57 Humboldt Arcata bottoms, intersection of Janes Rd. and Jackson Ranch Rd., 200 m E of the Simpson Administration Bldg. 24 Comment
  HSC100503  Luzula Carl C. Marshall May 1886 219 Humboldt Gulch E of Arcata. Comment
  HSC56946  Luzula comosa Overton, Butler 1979-7-23 9436 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UCD142118  Luzula comosa Joseph P. Tracy 1930-7-17 8972 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  HSC56452  Luzula parviflora Griswold, Butler 1979-7-12 7213 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SD46471  Luzula parviflora E. K. Balls, L. W. Lenz 1956-6-12 21662 Humboldt 4.4 miles southwest from Willow Creek, along US Highway 299 to Arcata. Common in shade on moist to wet seeps. 366 Comment
  RSA32655  Lychnis coronaria Doris K. Kildale 1927-7-3 3651 Humboldt Willow Creek Flat. Comment
  CHSC96710  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon County Park, Big Lagoon Bog. North eastern edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  UCD138085  Lysichiton americanus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1183 Humboldt Southern outskirts of Eureka. Comment
  UCR179284  Lysichiton americanus R. G. Swinney 1968-3-29 238 Humboldt East of Humboldt State College, Arcata 152 Comment
  UCSB12371  Lysichiton americanus Dearing, Hugh; Dearing, Margaret 1939-5-25 Humboldt Near Samoa Comment
  UCD103045  Lythrum hyssopifolia H. E. Parks; S. T. Parks 1937-6-1 24028 Humboldt Trinidad, Spruce Cove. Comment
  CAS-BOT-BC342808  Madia elegans L. R. Abrams 1918-6-15 7120 Humboldt Brannan Mt near Willow Creek 1371 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
  UC673205  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2874 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC31215  Madia exigua D. E. Anderson 1972-6-20 5733 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC70393  Madia exigua M. A. Baker 1980-6-7 1849 Humboldt Near Ammon Creek 732 Comment
  UC129391  Madia exigua Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5466 Humboldt near Elk Prairie Comment
  UC165211  Madia gracilis J. P. Tracy 1909-9-12 2085 Humboldt near Buhne's Point; Eureka 0 Comment
  UC495627 Image available Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt lower foothills of northwest slope of Buck Mountain Comment
  HSC45075  Madia sativa R. Sutherland 1976-8-6 8 .6876 Humboldt 229 Comment
  HSC81706  Madia sativa Thomas W. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC31344  Maianthemum dilatatum Larry E. DeBuhr, G. D. Wallace 1972-5-22 606 Humboldt 25 mi. N of Arcata at the S end of Big Lagoon Comment
  UC212992  Maianthemum dilatatum Joseph P. Tracy 1920-4-25 5316 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  HSC22832  Maianthemum dilatatum C. Norman Christiansen 1964-4-15 Humboldt Arcata Community Forest Comment
  RSA232642  Maianthemum dilatatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 606 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  RSA24336  Maianthemum dilatatum Carl B. Wolf 1941-2-25 9959 Humboldt South side of Freshwater Lagoon 61 Comment
  SD46488  Maianthemum dilatatum E. K. Balls, L. W. Lenz 1956-6-12 21668 Humboldt 4.7 miles south of Humboldt-Del Norte County line, U.S. Highway 101, Arcata to Crescent City. O forest floor in deep humus. 60 Comment
  HSC58009  Maianthemum racemosum subsp. amplexicaule G. L. Clifton 1979-7-31 11805 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC510674  Maianthemum racemosum subsp. amplexicaule Milo Baker 1923-7-31 149 Humboldt Lawrence Creek Comment
  CAS-BOT-BC511457  Maianthemum racemosum subsp. amplexicaule M. P. Dillingham 1972-4-30 s.n. Humboldt Vicinity of Whitehorn, Douglas fir forest Comment
  RSA183522  Maianthemum stellatum D. E. Anderson 1965-5-8 3630 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along highway 299. Comment
  RSA289951  Maianthemum stellatum Lincoln Constance 1934-6-2 783 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  UC1239528  Malacothrix floccifera Joseph P. Tracy 1916-9-5 4771 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC1239529  Malacothrix floccifera Joseph P. Tracy 1935-7-17 14100 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  UC33287  Malacothrix floccifera C. C. Marshall 1888-1-1 Humboldt Comment
  CAS-BOT-BC140138  Malus fusca Doris K. Kildale 1926-7-10 2343 Humboldt Big Lagoon Comment
  UC154233  Malus fusca J. P. Tracy 1901-6-23 1173 Humboldt immediate vicinity Eureka 0 Comment
  UC990712  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  UC562356  Marah oregana Joseph P. Tracy 1933-5-20 12227 Humboldt s of point Cape Mendocino 3 Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC170039  Medicago lupulina Joseph P. Tracy 1912-7-4 3728 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1197427  Medicago polymorpha Joseph P. Tracy 1934-4-14 13175 Humboldt Eureka 30 Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC1103762  Melica bulbosa Joseph P. Tracy 1927-5-22 8073 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  UC1145125  Melica geyeri Joseph P. Tracy 1942-6-2 17099 Humboldt 2 mi n Bridgeville 609 Comment
  HSC98014  Melica harfordii Cara Witte 2007-7-12 531 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC1145139  Melica harfordii Joseph P. Tracy 1941-6-15 16913 Humboldt near King's Peak (Wilder Ridge); Wilder Ridge 609 Comment
  CAS-BOT-BC262470  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda. Along South Fork of Eel River 121 Comment
  HSC38428  Melica subulata Dennis Anderson, J. P. Smith 1971-6-18 - 1055 Humboldt 1 mi. W of Lord Ellis Summit. Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UCD88654  Melica subulata A. H. Murphy 1951-6-25 67 Humboldt Snow Camp Meadow. 8 miles e.n.e of Kneeland. Comment
  HSC15016  Melilotus indicus D. E. Anderson 1961-9-2 1762 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UC577385  Melissa officinalis Joseph P. Tracy 1925-8-16 7232 Humboldt near the South Fork Trinity River Valley (around farm); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC195432  Mentha aquatica Joseph P. Tracy 1915-9-5 4665 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA152465  Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt Field s Landing, 2 miles from town 6 Comment
  HSC14245  Mentha canadensis D. E. Anderson 1961-9-9 1789 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  JEPS63445  Mentha suaveolens W. L. Jepson 1936-8-11 17866 Humboldt South Fork Eel River Philipsville (Philipsville); South Fork Eel River Comment
  UC166030  Mentzelia dispersa Joseph P. Tracy 1908-6 2843 Humboldt n/w slope Buck Mountain; Northern Coast Ranges 1219 Comment
  SJSU2546  Menziesia ferruginea H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  UC1197586  Menziesia ferruginea Joseph P. Tracy 1926-5-22 7506 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET198985  Micropus californicus var. californicus S. K. Harris, JP Tracy 1942-6-15 sn Humboldt Harris Road 1 mi E of Garberville Comment
  JEPS5825  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie Bald Mountain (in bog) 1066 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
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  UC180173  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1914-7-5 4564 Humboldt High Prairie Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  HSC57315  Microseris nutans Griswold, Butler 1979-7-10 6335 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  POM193012  Microsteris gracilis subsp. gracilis H. E. Parks, Joseph P. Tracy 1930-5-25 0795 Humboldt Laribee Valley. 793 Comment
  UC1196771  Mimulus alsinoides Joseph P. Tracy 1924-4-27 6646 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  BLMAR683  Mimulus aurantiacus Jennifer Wheeler 2013-6-7 683 Humboldt King range, Strawberry Rock 35 Comment
  HSC26881  Mimulus aurantiacus var. aurantiacus Clifton Raymond Chesbrough 1973-6-19 88 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  HSC102176  Mimulus guttatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1089 Humboldt Patterson Meadows 1555 Comment
  HSC102597  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1584 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC673219  Mimulus kelloggii Lincoln Constance, Reed C. Rollins 1942-5-12 2894 Humboldt 1 mi s Somes Bar (bluffs at junction of rivers); Klamath-Siskiyou region, Klamath and Salmon rivers 152 Comment
  HSC44829  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3598 Humboldt Margin of pond above Alder Springs 1585 Comment
  RSA15580  Mimulus moschatus Carl B. Wolf 1927-8-27 1160 Humboldt On the Klamath River, 14 mi. above Weitchpec. Comment
  RSA447971  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs. 1524 Comment
  HSC12793  Mimulus pilosus Jana Kattenhorn 1970-10-28 149 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC48863  Mimulus pulsiferae Brad Klipfel 1973-6-10 56 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC20826  Mimulus pulsiferae J. P. Tracy 1934-6-27 11089 Humboldt Grouse Mtn.; near 'Cold Springs 1433 Comment
  UC275482  Minuartia cismontana Joseph P. Tracy 1925-5-30 7040 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  SEINET6904198  Minuartia douglasii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  HSC78656  Minuartia nuttallii subsp. gregaria D. K. Imper 1982-6-29 1478 Humboldt Near Lassics Lookout 1584 Comment
  HSC55867  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10889 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC37863  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Humboldt Bay; Woodley Island Comment
  HSC4066  Moehringia macrophylla Elrid H. Spinas 1948-5-15 1 Humboldt Horse Mtn. Comment
  HSC67209  Moehringia macrophylla Thomas W. Nelson, James Nelson 1980-6-10 5437 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC73783  Moehringia macrophylla Gail Newton 1980-6-28 705 Humboldt Near Mad River Butte. 1536 Comment
  HSC57898  Monardella odoratissima subsp. pallida Overton, Butler 1979-7-31 11478 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC1239675  Monardella odoratissima subsp. pallida Joseph P. Tracy 1942-9-6 17310 Humboldt South Fork Mountain, near McKay Camp. 1676 Comment
  LA62409  Monardella sheltonii C. B. Wolf; 1934-7-1 5848 Humboldt along Eel River and redwood Highway, 1.2 mi. S of F. K. Lane Grove 60 Comment
  CAS-BOT-BC220516  Monardella villosa Marcus E. Jones 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  POM61350  Monardella villosa Joseph P. Tracy 1918-7-6 5042 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC718021  Monardella villosa subsp. villosa Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec junction of Klamath & Trinity Rivers, 200 yards west of School. 304 Comment
  UC774992  Monardella villosa subsp. villosa Carl B. Wolf 1937-8-13 9223 Humboldt 8 mi east Hoopa Valley on new road towards Trinity Summit; North Coast Range 1219 Comment
  UC161032  Montia diffusa Joseph P. Tracy 1908-6 2725 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC444802  Montia diffusa Don Hagar 1957-5-21 59 Humboldt Brush Mountain, 3.5 miles southwest of Willow Creek 853 Comment
  CAS-BOT-BC444805  Montia diffusa Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  UC1275878  Montia diffusa Don Hagar 1957-5-21 59 Humboldt 3.5 mi sw of Willow Creek (Brush Mountain); Brush Mountain 853 Comment
  JEPS43192  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC69868  Montia linearis Thomas W. Nelson 1978-5-28 4097 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC55061  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11613 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC83800  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC63080  Morella californica David Wheeler 1979-4-30 89 Humboldt 910 Gwinn St., McKinleyville Comment
  UC1197939  Morella californica Joseph P. Tracy 1924-1-20 6596 Humboldt Northern Coast Region. Around Humboldt Bay near Samoa Comment
  SEINET200837 Image available Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River 4 miles above the mouth. 61 Comment
  UC1239640  Myosotis discolor Joseph P. Tracy 1917-6-17 4815 Humboldt around Humboldt Bay Valley of Salmon Creek; Northern Coast Ranges, Humboldt Bay, Valley of Salmon Creek 15 Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  HSC103302  Myosotis latifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-28 3016 Humboldt Above College Cove (north of Trinidad State Beach); along path to beach. 61 Comment
  HSC78084  Myosurus minimus L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 718 Humboldt N Spit of Humboldt Bay on BLM land 3 Comment
  UC1197938  Myrica californica J. P. Tracy 1901-4-21 1034 Humboldt immediate vicinity Eureka (Ricks Prairie); Ricks Prairie 0 Comment
  UCD150388  Myriophyllum aquaticum William Anderson 1958-12-24 s.n. Humboldt McKinleyville. Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  RSA10044  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville 122 Comment
  JEPS70295  Navarretia divaricata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9065 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC76562  Navarretia divaricata var. divaricata Denis Kearns 1981-7-22 324 Humboldt Near Whiteys Peak. 1487 Comment
  HSC32096  Navarretia intertexta D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5704 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1198599  Navarretia intertexta Joseph P. Tracy 1916-6-20 4731 Humboldt Alder Point Northern Coast Ranges 152 Comment
  JEPS70336  Navarretia intertexta W. L. Jepson 1902-7-11 2019 Humboldt Martin's Ranch South Fork Trinity River Comment
  UC906686  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1947-7-5 17794 Humboldt Mud Springs , Mud Springs (Trinity Summit) 1371 Comment
  UC52442  Navarretia squarrosa J. P. Tracy 1903-8-9 1932 Humboldt immediate vicinity Eureka 0 Comment
  UC1222718  Navarretia tagetina Joseph P. Tracy 1950-6-23 18862 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  HSC13586  Nemophila menziesii Doris K. Kildale 1926-4-11 1762 Humboldt Buck Mtn. Comment
  HSC32387  Nemophila menziesii var. atomaria Linda M. Barker 1974-5-11 183 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC73127  Nemophila parviflora M. A. Baker 1980-5-18 1284 Humboldt Near Black Mtn. 1006 Comment
  BLMAR172  Nemophila pedunculata Donald Hazlett 1994-6-7 172 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC562592  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7891 Humboldt Berry's North Coast Ranges, Redwood Creek 274 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
  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
  UC144129  Nuphar lutea subsp. polysepala Harley P. Chandler May 1901 1236 Humboldt Mad River near Vance's, Humboldt Bay, North Coast Ranges Mad River; North Coast Ranges, Humboldt Bay, Mad River Comment
  RSA178545  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmore's. 762 Comment
  RSA293126  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt moist hillside beside Eureka Muni. Golf Course. Comment
  UC666833  Oemleria cerasiformis Joseph P. Tracy 1935-7-9 14059 Humboldt Willow Creek; Trinity River Valley 152 Comment
  POM271859  Oenothera glazioviana Lyman Benson 1928-7-10 428 Humboldt Clam Beach, Trinidad 46 Comment
  HSC12413  Oenothera glazioviana D. Santana 1970-11-2 98 Humboldt 1 mi. S of Trinidad Comment
  POM224763  Oenothera glazioviana P. A. Munz 1936-8-10 14335 Humboldt At edge of Rio Del. Comment
  UCR111734  Oenothera wolfii D. K. Imper 1993-5-13 s.n. Humboldt North Coast, Lost Coast Road c. 4 miles south of Cape Mendocino at Davis Creek Bridge, from bridge along road c. 300 ft. to north 6 Comment
  HSC102042  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 945 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1197457  Orobanche fasciculata Joseph P. Tracy 1921-5-30 5492 Humboldt Northern Coast Ranges. Kneeland Prairie. Comment
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  HSC48857  Orthilia secunda Brad Klipfel 1973-7-15 200 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET12270144  Orthocarpus imbricatus J. P. Tracy 1951-1 19562 Humboldt halfway between Snow Camp & Twin Lakes Comment
  POM225846  Orthocarpus lithospermoides M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  HSC102550  Osmorhiza berteroi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1538 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC96211  Osmorhiza berteroi April A. Allard, Gregory D. O'Connell 2005-6-8 6 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 1005 Comment
  UC642234  Osmorhiza berteroi Joseph P. Tracy 1932-7-12 10450 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC75448  Osmorhiza occidentalis J. O. Sawyer 1980-7-18 3582 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC642277  Osmorhiza occidentalis Joseph P. Tracy 1933-7-26 12906 Humboldt Grouse Mountain 1630 Comment
  HSC98819  Osmorhiza occidentalis Cara Witte 2008-7-1 790 Humboldt Forest Service Road 4N32. .5 miles east of intersection with 5N04 and 4N32E. 1508 Comment
  HSC100585  Oxalis oregana Carl C. Marshall Mar 1886 151 Humboldt Everywhere. Comment
  HSC29727  Oxalis oregana J. D. Ackerman, A. M. Montalvo 1973-4-29 75 Humboldt Previously logged area, 2 mi. NE of Kneeland. 457 Comment
  SEINET3347146 Image available Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Redwood Creek, at Berry's Comment
  HSC102561  Ozomelis trifida M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1548 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1222793  Parentucellia viscosa Joseph P. Tracy 1950-6-8 18759 Humboldt leading from the coast toward Petrolia; Domingo Hill Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UCR275120  Parentucellia viscosa Charity A. Hartshorn 2016-4-24 22 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC26880  Parentucellia viscosa Clifton Raymond Chesbrough 1973-6-19 87 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  RSA181631  Parentucellia viscosa Doris K. Niles 1950-6-1 7 Humboldt Island in Eel River, Niles field. Comment
  HSC74501  Parnassia palustris Gail Newton 1980-8-10 2048 Humboldt Near Blake Mtn. 1707 Comment
  UC1222231  Pectocarya pusilla Joseph P. Tracy 1948-5-31 18003 Humboldt ca 1/2 mi w Harris (up hill toward Spruce Grove) 762 Comment
  UC902220  Pedicularis densiflora Joseph P. Tracy 1941-3-26 16818 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  RSA46796  Pedicularis densiflora Doris K. Kildale 1927-4-17 3096 Humboldt Briceland Bridge near Garberville. Comment
  UC582555  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  POM301297  Pedicularis racemosa Joseph P. Tracy 1948-9-5 18170 Humboldt Happy Camp Mountain. In Trinity Summit Range, northeast of Hawkins Bar. 1280 Comment
  UC519313  Pellaea Joseph P. Tracy 1933-6-13 12561 Humboldt near summit on rd w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mt 1066 Comment
  RSA54127  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  UCD137663  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt Mount Lassic area a little south of Blue Ridge; Mule Slide. Comment
  CHSC63423  Penstemon anguineus Vernon H. Oswald 1994-6-29 6362 Humboldt Titlow Hill Rd. (Forest Rd. 1) 10.8 mi S of Hwy. 299, 0.6 mi S of Friday Ridge Rd., S of Willow Creek. 1548 Comment
  JEPS7210  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA425609  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA425608  Penstemon anguineus Francis W. Pennell, Joseph P. Tracy 1940-7-7 26092 Humboldt Grouse Mountain, w. of Salyer. 1372 Comment
  RSA33967  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1926-4-30 1935 Humboldt Bucilana Bridge. Comment
  HSC41280  Penstemon laetus subsp. sagittatus Brad Klipfel 1974-6-25 441 Humboldt Horse Mtn., along ridge running to the E of Horse Mtn. proper Comment
  RSA120319  Penstemon laetus var. sagittatus S. S. Tillett 1956-7-6 608 Humboldt On E facing slope above Klamath River, along Ishi Rish Road, approx. 1.5 mi from Orleans. 198 Comment
  HSC56163  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-8-1 12047 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  NY640969  Penstemon purpusii J. P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain Comment
  RSA46686  Penstemon purpusii Doris K. Kildale 1937-7-18 15141 Humboldt Horse Mt. Comment
  UC1032475  Penstemon rattanii A. E. Wieslander 1931-5-21 213 Humboldt Kneeland China Flat Quad. Comment
  HSC33659  Pentagramma triangularis M. Wetherwax 1975-6-1 174 Humboldt Along Butler Valley Rd. 0.5 mi. past the bridge over the Mad River Comment
  UC1197322  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  UC184100  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  HSC32525  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1126 Humboldt McKeown Ranch N of Dinsmore Comment
  UC184323  Perideridia kelloggii Joseph P. Tracy 1912-8-3 3967 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  HSC12557  Persicaria maculosa D. La Conte 1970-8-11 15 Humboldt Along side of creek intersecting Campton Rd. Comment
  HSC89625  Petasites frigidus Brent Helm, Curtis Miller, Mark Steiger 1988-3-12 29 Humboldt Lord Ellis Summit, Hwy. 299, N facing slope adjacent to Hwy. 518 Comment
  HSC97931  Petrorhagia dubia Cara Witte 2007-6-14 272 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  UC673184  Phacelia bolanderi Lincoln Constance and Reed C. Rollins 1942-5-12 2892 Humboldt 2 mi n Orleans; Klamath-Siskiyou Region, Klamath River 121 Comment
  SEINET12330003  Phacelia bolanderi F. H. Utech 1986-1 86 -384 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  POM127633  Phacelia heterophylla subsp. virgata H. P. Chandler 1901-05 1257 Humboldt Redwood belt. 152 Comment
  HSC58319  Phacelia mutabilis Overton, Butler 1979-8-2 12609 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC906637  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  JEPS81021  Phacelia nemoralis subsp. oregonensis J. P. Smith and Steve Selva 1970-6-14 3828 Humboldt along CA 96 at Whitmore Creek 152 Comment
  CDA20501  Phalaris arundinacea P. Haggard 2004-7-8 PDR 1285917 Humboldt North Coast; Alder Grove Park near pond. 0 Comment
  UC154110  Philadelphus lewisii Joseph P. Tracy 1908-6 2886 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC420417  Philadelphus lewisii P. E. Goddard 1907-6-10 #b. 119 Humboldt Van Duzen Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  HSC49981  Phlox adsurgens M. A. Baker 1979-6-7 779 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC52358  Phlox adsurgens Joseph Burtt Davy and Walter C. Blasdale 1899-5 5708 Humboldt above Three Creeks Comment
  SEINET10496854  Phlox diffusa Jones 1985-5-5 Jones 27 Humboldt T34n,r4e,sec.14, titlow road. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the raod to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  HSC100598  Phlox gracilis Carl C. Marshall Apr 1887 373 Humboldt Hoopa Valley. Comment
  UC1198562  Phlox gracilis Joseph P. Tracy 1906-5-6 2447 Humboldt near Hydesville (hillside of Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC39682  Phoradendron juniperinum Thomas W. Nelson, Jane Nelson 1976-6-16 2739 Humboldt Just W of Alder Springs. 1524 Comment
  RSA609411  Phoradendron villosum Louis C. Wheeler 1958-8-7 7370 Humboldt Fort Baker Manganese Mine. Comment
  SEINET3290566 Image available Phyllospadix torreyi H. E. Parks 1927-8-4 s.n. Humboldt Trinidad Comment
  SJSU2517  Physocarpus capitatus H. L. Buckalew 1962-6-21 Humboldt Smith R at Smith Cr Redwood State Park Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  SJSU142  Picea sitchensis Emily D. Smith 1934-8-22 Humboldt between Fortuna & Eureka Comment
  SJSU2223  Picea sitchensis H. L. Buckalew 1959-7-10 Humboldt Prairie Creek Redwoods State Park, northweastern Humbollt County Comment
  UCD134309  Picea sitchensis Linda M. Barker 1976-4-13 1376 Humboldt Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata. Comment
  NY49723  Pinus contorta var. contorta H. E. Parks 05 1931 s.n. Humboldt Samoa, Pine Barrens 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
  CAS-BOT-BC73116  Pinus lambertiana C. D. Duncan 1920-9-1 s.n. Humboldt East side of Hoope Valley Comment
  RSA275331  Pinus monticola Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, flats along Gerogia Pacific s A-line. 122 Comment
  UC650336  Pinus monticola Charles H. Bunting 1940-8-12 56 Humboldt n of, n slope of Bee Mountain Weitchpec; Bee Mountain 1082 Comment
  HSC1537  Pinus ponderosa Francis Winter 1960-5-7 Humboldt Sugar Pine Mtn. 6 mi. W of Hoopa Indian Reservation 1067 Comment
  UC502912  Pinus ponderosa Joseph P. Tracy 1929-4-28 8541 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC458134  Pityopus californicus Doris K. Kildale 1926-6-6 2110 Humboldt Trail to Gold Bluffs Comment
  CAS-BOT-BC169835  Plagiobothrys Doris K. Kildale 1929-4-27 7450 Humboldt Willow Creek - Salya road along Trinity River. 3 miles N of Willow Comment
  POM160833  Plagiobothrys reticulatus Joseph P. Tracy 1918-7-5 2010 Humboldt White Thorn Valley. 305 Comment
  UC1222212  Plagiobothrys reticulatus Joseph P. Tracy 1951-6-24 19536 Humboldt Kneeland Prairie 762 Comment
  UC184998  Plagiobothrys reticulatus Joseph P. Tracy 1904-7-4 2111 Humboldt at Eureka; Northern Coast Region, Eureka 0 Comment
  JEPS60975  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS61046  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork of Eel River 121 Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC906674  Plantago coronopus Stuart K. Harris 1942-5-28 6982 Humboldt 1 mi w Fortuna (near Palmer Creek) 15 Comment
  JEPS6423  Plantago erecta Joseph P. Tracy 1932-5-10 9945 Humboldt near Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  UC198604  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River North Coast Ranges, Little River 6 Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC37930  Plantago lanceolata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  JEPS7136  Plantago lanceolata Lincoln Constance 1934-5-27 700 Humboldt s end Dyerville Bridge (on South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  UC1196131  Plantago maritima var. californica Joseph P. Tracy 1927-6-8 8108 Humboldt Trinidad 30 Comment
  POM319565  Platanthera Patricia Wilder 1968-8-21 4391 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  SEINET10297967  Platanthera dilatata var. dilatata Unknown 1965-8-9 s.n. Humboldt BIG LAGOON: Elev. c. 10 ft Comment
  HSC96482  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 443 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1196414  Platanthera sparsiflora Joseph P. Tracy 1948-9-5 18197 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC666988  Platanthera sparsiflora Joseph P. Tracy 1930-7-17 8990 Humboldt McKay Camp South Fork Mountain 1676 Comment
  UC198650  Platystemon californicus Joseph P. Tracy 1917-5-30 4797 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  CAS-BOT-BC91636  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  SEINET516269  Platystemon californicus Vernon H. Oswald 1998-4-16 8915 Humboldt North Spit of Humbldt Bay, west side of New Navy Base Rd. 1.7 mi S of Hwy. 255. Comment
  RSA506997  Plectritis congesta subsp. brachystemon H. E. Parks, Joseph P. Tracy 1934-6-14 11022 Humboldt Horse Mountain. 1220 Comment
  HSC49518  Plectritis macrocera R. York 1979-4-16 232 Humboldt E of Samoa drag strip. Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  HSC89595  Poa annua M. Roantree 1985-5-2 29 Humboldt S side of Trinidad Head summit, near cross. Comment
  UC525626  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt head of Brett Hole Trinity Summit; Klamath Mts 1828 Comment
  HSC97639  Poa bulbosa Cara Witte 2007-5-22 77 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1398 Comment
  UCD90834  Poa compressa Les Berry 1956-6-20 s.n. Humboldt Coyote Flat, Ft. Baker Ranch, east of Bridgeville. 914 Comment
  CAS-BOT-BC255122  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10821  Poa confinis Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UCD91135  Poa howellii A. H. Murphy 1950-5-10 s.n. Humboldt E. M. Cottrell Ranch, on Roth Road. Comment
  UCD90523  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay. 30 Comment
  OBI22137  Poa macrantha Carl B. Wolf 1937-6-18 8904 Humboldt Centerville Beach Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 3 Comment
  UCD91937  Poa pratensis A. Murphy 1951-5-18 s.n. Humboldt W. Roscoe Ranch, Upper Mattole, near Mattole River. Comment
  HSC98802  Poa secunda subsp. secunda Cara Witte 2007-6-1 170 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1502 Comment
  UC184914  Poa secunda subsp. secunda Joseph P. Tracy 1912-7-31 3952 Humboldt near summit Buck Mt; Northern Coast Ranges 1676 Comment
  UCD92045  Poa secunda subsp. secunda Joseph P. Tracy 1936-5-29 14822 Humboldt French Camp Ridge. 1066 Comment
  HSC99415  Poa trivialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 64 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
  UC1145117  Poa trivialis Joseph P. Tracy 1937-6-6 15330 Humboldt Ferndale 15 Comment
  UC277172  Poa trivialis Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville Flat, S Fork of Eel River Phillipsville Flat; Northern Coast Ranges 91 Comment
  UC1222708  Polemonium carneum Joseph P. Tracy 1950-6-8 18736 Humboldt Bear River Ridge 609 Comment
  CDA36977  Polycarpon tetraphyllum R. Robison Humboldt Humboldt Lagoons State Park, south of Stone Lagoon day use parking area. 0 Comment
  HSC94145  Polycarpon tetraphyllum Gordon Leppig 2000-12-6 1522 Humboldt 13th and A St. in Arcata 49 Comment
  UC502963  Polygala californica Joseph P. Tracy 1927-7-24 8291 Humboldt Upper Mattole Northern Coast Ranges, Upper Mattole 152 Comment
  JEPS43006  Polygala californica W. L. Jepson 1934-5-7 16704 Humboldt in woods at border Buckeye Prairie; Bull Creek Comment
  HSC54520  Polygala cornuta Overton, Butler 1979-7-23 9448 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC72626  Polygala cornuta J. P. Smith, J. O. Sawyer 1977-7-1 9226 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  HSC100599  Polygala cucullata Carl C. Marshall Jun 1887 408 Humboldt Dobbyn's Creek. Comment
  HSC17465  Polygonum aviculare Lincoln Constance 1934-6-12 860 Humboldt N bank of S Fork Eel River, Bull Creek Rd. Comment
  SEINET3405167 Image available Polygonum californicum Joseph P. Tracy 1929-8-18 8654 Humboldt Along Van Duzen River, Opposite Buck Mountain Comment
  UC55506  Polygonum davisiae Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5806 Humboldt Trinity Summit North Coast Ranges Comment
  RSA152353  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt On Box Camp trail, 1/2 mile W of summit. 1677 Comment
  UC1541405  Polygonum douglasii subsp. spergulariiforme H. E. Parks and J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  UC1101153  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1234 Humboldt Town of Blue Lake; pond on s side Comment
  HSC55125  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 11929 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC17515  Polygonum paronychia Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  SBBG1702  Polygonum paronychia H. and M. Dearing 1939-5-24 3427 Humboldt Cape Mendocino Beach Comment
  UC672944  Polygonum paronychia Joseph P. Tracy 1927-1-15 7836 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UCD100526  Polygonum paronychia James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4957 Humboldt End of Murray Road in McKinleyville. Comment
  CDA2921  Polygonum polystachyum T. C. Fuller 1961-9-27 7042 Humboldt Highway 101 2.5 miles north of Trinidad. 0 Comment
  HSC54719  Polygonum spergulariiforme Overton, Butler 1979-7-26 10094 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  UC503066  Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM232318  Polypodium scouleri I. L. Wiggins 1930-7-11 4686 Humboldt Near Samoa Comment
  RSA689965  Polypodium scouleri Charlotte M. Hoak 1936-8-15 376 Humboldt Patricks Point Comment
  UC667946  Polypodium scouleri Joseph P. Tracy 1936-9-6 15183 Humboldt Big Lagoon Comment
  UC906750  Polypodium scouleri Joseph P. Tracy 1947-5-24 17689 Humboldt Big Lagoon Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  CAS-BOT-BC233075  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside, S of Klamath River and E of Perch Creek, Orleans region Comment
  LA10109  Polypogon interruptus H. S. Yates; 1936-6-16 5678 Humboldt 1 mi. NE of Samoa 3 Comment
  UC207735  Polypogon interruptus Joseph P. Tracy 1916-9-5 4765 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC1145088  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt opposite Buck Mountain (along Van Duzen River, Dinsmore's); along Van Duzen River, opposite Buck Mountain 762 Comment
  HSC26350  Polypogon monspeliensis T. O. Osborne 1970-6-18 73 Humboldt Flat-iron Rock, 3/4 mile NW of Trinidad Lighthouse. Comment
  UC34074  Polypogon monspeliensis J. P. Tracy 1900-7-4 893 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach Comment
  HSC47991  Polystichum imbricans Brad Klipfel 1974-6-17 681 Humboldt Horse Mtn. Comment
  HSC12977  Polystichum munitum M. Athey, D. La Conte 1970-11-28 2 Humboldt HSU campus Comment
  JEPS64534  Populus Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway (at Sylvandale); North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  CAS-BOT-BC102911  Populus trichocarpa Doris K. Kildale 1926-11-13 2853 Humboldt mouth of Lindsey Creek - Lower Mad River Comment
  UC1196666  Populus trichocarpa Joseph P. Tracy 1922-10-8 6122 1/2 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC492234  Populus trichocarpa Joseph P. Tracy 1932-4-24 9801 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1103510  Potamogeton foliosus Joseph P. Tracy 1940-10-17 16774 Humboldt 2 to 5 mi e of South Fork (Camp Grant); Eel River 45 Comment
  HSC49611  Potamogeton natans R. York 1979-4-16 234 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  RSA246822  Potamogeton pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  CAS-BOT-BC454067  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  HSC18720  Potentilla anserina subsp. pacifica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. 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
  HSC48754  Potentilla gracilis var. fastigiata Brad Klipfel 1973-6-10 55 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC531751  Potentilla gracilis var. fastigiata F. P. Cronemiller 1924-5-20 882 Humboldt Potato Patch, Snow Mt Range 914 Comment
  UC279095  Potentilla gracilis var. gracilis H. E. Parks 1925-6-17 Humboldt Kneeland Comment
  RSA135410  Potentilla palustris Volney Rattan 1883-6-4 s.n. Humboldt 3 miles from Eureka Comment
  SEINET12044958  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 11 mi E of Orick Comment
  SEINET12050369  Prosartes smithii F. H. Utech 1988-1 88 -284 Humboldt along CA 36 from Bridgeville enroute to Dinsmore Mile Marker 42.00, above Van Duzen River 800 Comment
  POM283387  Prunella vulgaris var. lanceolata Lyman Benson 1928-7-12 404 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  SD93020  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 220 Humboldt Highway 101 near Dyerville. 60 Comment
  BLMAR465  Prunus emarginata Jennifer Anthony-Wheeler 2004-11-8 465 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 299 914 Comment
  HSC101978  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 875 Humboldt Patterson Meadows 1566 Comment
  HSC71668  Prunus emarginata Gail Newton 1980-6-24 552 Humboldt Near Ladder Rock 1500 Comment
  RSA254750  Prunus emarginata D. E. Anderson 1972-6-13 5572 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  RSA43863  Prunus emarginata H. M. Pollard 1947-9-1 s.n. Humboldt Near summit of Somes Peak, Orleans region. 1524 Comment
  HSC98967  Prunus emarginata var. emarginata Cara Witte 2007-9-3 641 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1415 Comment
  HSC37671  Pseudognaphalium luteoalbum R. Sutherland 1976-8-13 30 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  HSC5705  Pseudognaphalium stramineum W. D. Stevens 1967-7-22 60 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  JEPS48283  Pseudotsuga menziesii Joseph P. Tracy 1932-3-20 9782 Humboldt Trinidad North Coast Region 60 Comment
  HSC70805  Pseudotsuga menziesii var. menziesii Gail Newton 1980-7-24 1781 Humboldt Near Somes Mtn. 1615 Comment
  HSC95904  Pseudotsuga menziesii var. menziesii Will Ferrand 2001-6-17 19 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC902023  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 3 Comment
  HSC48700  Pterospora andromedea Brad Klipfel 1973-7-31 257 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS79952  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  CAS-BOT-BC460600  Pyrola aphylla Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC55263  Pyrola crypta Overton, Butler 1979-8-2 12608 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS58818  Pyrola dentata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC562451  Pyrola picta Joseph P. Tracy Jul 16 1930-Jul 19 1930 9033 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC56314  Pyrola picta Joseph Burtt Davy 1899-6-19 5644 Humboldt Hoopa Mountain Comment
  UC709464  Quercus X morehus Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap; on Bull Creek-Mattole Rd 762 Comment
  CAS-BOT-BC62627  Quercus chrysolepis Doris K. Kildale 1926-12-19 2879 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  UC478893  Quercus chrysolepis Marcus E. Jones, A. M. 1931-7-16 28845 Humboldt near Trinity River (Burnt Ranch) Comment
  UC54679  Quercus chrysolepis P. E. Goddard 1901-7-12 59 Humboldt Hupa Comment
  UCD82872  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -14 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  CAS-BOT-BC94306  Quercus garryana Roxana S. Ferris 1955-7-11 12973 Humboldt Summit of US Highway 299 betw. Willow Creek and Blue Lake Comment
  CAS-BOT-BC94311  Quercus garryana Doris K. Kildale 1926-8-22 2571 Humboldt Bald Hills 716 Comment
  UC1193248  Quercus garryana K. Cuff 1950-10-10 127 Humboldt 1.5 mi n Honeydew 152 Comment
  UC1193249  Quercus garryana R. H. Neuns 1950-7-31 Humboldt Mail Ridge, e headwaters of Stuhead Creek Mail Ridge, Stuhead Creek 883 Comment
  UC667984  Quercus kelloggii Joseph P. Tracy 1938-11-26 16176 Humboldt between Miranda and Garberville (at Sylvandale); South Fork of Eel River, Sylvandale 91 Comment
  CAS-BOT-BC104333  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New Road towards Trinity Summit 1676 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  HSC72800  Quercus sadleriana Gail Newton 1980-6-17 219 Humboldt Near Onion Mtn. 1341 Comment
  UCD47220  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi. N.E. of Hoopa along trail to Trinity Summit from end of forest Rd. 1463 Comment
  SBBG115525  Quercus sadleriana G. J. Muth 1972-8-15 1845 Humboldt near Big Hill Rd 1431 Comment
  HSC76360  Quercus vacciniifolia Denis Kearns 1981-7-6 81 Humboldt Near Mosquito Lake 1256 Comment
  HSC76361  Quercus vacciniifolia Denis Kearns 1981-7-6 54 Humboldt Near Mosquito Lake 1122 Comment
  UC275586  Quercus wislizeni Joseph P. Tracy 1923-10-14 6578 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  HSC18131  Ranunculus californicus var. californicus F. B. Plett 1963-3-31 13 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA43857  Ranunculus cymbalaria var. saximontanus H. M. Pollard 1947-8-7 s.n. Humboldt Klamath River bed, near hoodson Mine, Orleans region Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC73243  Ranunculus occidentalis M. A. Baker 1980-5-18 1340 Humboldt Near Black Mtn. 792 Comment
  UC1368470  Ranunculus occidentalis R. K. Gierisch and D. H. Esplin 1969-7-1 3529 Humboldt Grouse Mtn. Six Rivers National Forest Comment
  RSA523409  Ranunculus occidentalis G. H. True 1936-5-11 466 Humboldt E slope of Elk Ridge, 12 miles W of Miranda. 457 Comment
  UC486518  Ranunculus occidentalis Parks and Tracy 1930-5-25 859 Humboldt Laribee Valley; along small stream, eastern Humboldt Co. Comment
  HSC30270  Ranunculus parviflorus David Ferranti 1974-5-6 Humboldt Garden weed at 4360 Union St. Eureka Comment
  HSC100902  Ranunculus repens Carl C. Marshall 167 Humboldt No data. Comment
  POM311440  Ranunculus repens D. E. Breedlove 1962-6-7 3027 Humboldt [?] miles S of Southern city limits of Eureka of Hwy 101. 3 Comment
  RSA13277  Rhamnus californica Doris K. Kildale 1928-7-25 5916 Humboldt Roadside at Humboldt-Siskiyou County line betw Sarres Bar and Orleans Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  RSA6202  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 4205 Humboldt City of Eureka, 1 block N of Henderson St on S St cut over Redwoods. 30 Comment
  HSC7831  Rhododendron columbianum J. Pursell 1964-10-6 1061 Humboldt Big Lagoon Bog Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC56610  Rhododendron macrophyllum Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  SD56746  Rhododendron macrophyllum Darley F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick on Bald Hill Road. 459 Comment
  UC32620  Rhododendron macrophyllum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  UC1197790  Rhododendron occidentale Joseph P. Tracy 1913-9-9 4402 Humboldt at Big Lagoon Big Lagoon; Northern Coast Ranges, Big Lagoon 30 Comment
  UC183661  Rhododendron occidentale Joseph P. Tracy 1913-9-7 4389 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC314636  Rhododendron occidentale Joseph P. Tracy 1926-6-27 7663 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  UC604646  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15944 Humboldt Trinidad 60 Comment
  UCSB4803  Rhododendron occidentale Phillips, Priscilla 1958-6-7 Humboldt Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC41281  Rhododendron occidentale var. paludosum Brad Klipfel 1974-6-25 442 Humboldt Horse Mtn. Comment
  UC34924  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  HSC100495  Ribes Carl C. Marshall Apr 1887 395 Humboldt Hoopa Valley. Comment
  HSC101979  Ribes binominatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 876 Humboldt Patterson Meadows 1566 Comment
  HSC40801  Ribes binominatum Thomas W. Nelson 1976-7-9 2972 Humboldt W side of Red Lassic 1707 Comment
  HSC37423  Ribes bracteosum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 513 Humboldt Along Lost Man Creek. 38 Comment
  RSA170225  Ribes bracteosum Joseph P. Tracy 1918-5-28 4939 Humboldt High Prairie Creek. 915 Comment
  UC667032  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  HSC103232  Ribes lacustre Jade Paget-Seekins 2010-6-14 20 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  HSC99361  Ribes lacustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 10 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC492208  Ribes lacustre Joseph P. Tracy 1932-7-16 10623 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC630510  Ribes laxiflorum H. E. and S. T. Parks 1937-6-4 24004 Humboldt along Prairie Creek at Valley Green Prairie Creek; Valley Green, Prairie Creek Comment
  HSC103194  Ribes lobbii Jade Paget-Seekins 2010-7-5 35 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  UC1198926  Ribes lobbii Joseph P. Tracy 1932-7-17 10666 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC673202  Ribes lobbii Lincoln Constance, Reed C. Rollins 1942-5-11 2864 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  HSC103201  Ribes marshallii Jade Paget-Seekins 2010-7-6 40 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  CAS-BOT-BC206043  Ribes menziesii Doris K. Kildale 1926-4-4 1724 Humboldt Trinidad Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  RSA0021769  Ribes menziesii Patricia Wilder 1968-8-22 4425 Humboldt Coastal rain forest 7 miles south of Ferndale on Mattole Road; N of Cape Mendocino and Capetown. Bear River Ridge, Oil Creek to Pacific drainage area. 549 Comment
  UC902058  Ribes roezlii Joseph P. Tracy 1942-3-8 17067 Humboldt Miranda South Fork of Eel River 121 Comment
  BLMAR142  Ribes roezlii var. amictum Donald Hazlett 1994-6-7 142 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  BLMAR269  Ribes roezlii var. cruentum Jennifer Anthony-Wheeler 1999-7-30 269 Humboldt Lacks Creek, growing in Hupa mt quad 1219 Comment
  CAS-BOT-BC198903  Ribes roezlii var. cruentum Carl B. Wolf 1941-2-26 9965 Humboldt 1 4/10 mi. below Weitchpec on Rd. to Klamath River 304 Comment
  HSC100094  Ribes roezlii var. roezlii J. P. Smith, J. O. Sawyer 2010-3-22 12711 Humboldt Along Hwy. 36, E of Dinsmore. 780 Comment
  RSA0018242  Ribes sanguineum var. glutinosum E. R. Johnson 1929-08 1413 Humboldt Arcata Redwood Park. 76 Comment
  UC1198912 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1912-3-31 3563 Humboldt near mouth Lindsey Creek; Northern Coast Ranges 30 Comment
  HSC32267  Ribes viscosissimum J. O. Sawyer 1970-6-24 2276 Humboldt W of Mill Creek Lakes. 1677 Comment
  UC492213  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  JEPS13132  Romanzoffia californica Joseph P. Tracy 1925-4-5 6954 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  POM265891  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2879 Humboldt 3 miles east of East Fork of Willow Creek. Comment
  RSA516379  Romanzoffia californica Barbara Ertter, Thomas Delendick 1987-5-16 6937 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata; base of large volcanic rock on S side of road above Willow Creek. 800 Comment
  UC702003  Romanzoffia tracyi Harold E. Parks March 1946 24276 Humboldt ocean bluffs at Trinidad Head Comment
  UC492262  Rorippa curvisiliqua H. E. Parks and Joseph P. Tracy 1931-5-17 9426 Humboldt Trinity River Valley Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  HSC99388  Rorippa nasturtium-aquaticum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 37 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99513  Rosa canina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 176 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC35592  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2003 Humboldt French Camp, Bald Hills. Comment
  CAS-BOT-BC146828  Rosa nutkana H. E. Parks; S. T. Parks 1937-5-1 5816 Humboldt Spruce Cove, Trinidad 60 Comment
  CAS-BOT-BC146834  Rosa nutkana L. R. Abrams 1916-7-20 6146 Humboldt Between Eureka and Alton Comment
  SBBG3082  Rosa nutkana H. and M. Dearing 1939-5-26 3448 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  JEPS45644  Rosa nutkana var. nutkana Milo S. Baker 1923-7-15 11 Humboldt outskirts of Eureka Comment
  UC1199022  Rosa nutkana var. nutkana J. P. Tracy 1901-6-23 1163 Humboldt immediate vicinity of Eureka 0 Comment
  UC1541251  Rosa nutkana var. nutkana H. E. Parks June 1933 4450 Humboldt near Bolling Grove; Eel River Comment
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 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
  UC667035  Rosa pisocarpa Joseph P. Tracy 1933-8-30 13020 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC146884  Rosa rubiginosa Doris K. Kildale 1927-7-1 3616 Humboldt Alton Hill 30 Comment
  UCD113775  Rubus armeniacus K. Twitchell 1996-5-11 27 Humboldt Crannell, along old Highway 101 at Moonstone Beach access. 36 Comment
  HSC19650  Rubus leucodermis Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC19651  Rubus leucodermis Lincoln Constance 1934-5-24 655 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  HSC98453  Rubus leucodermis Gail Newton 1980-8-10 2054 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC147241  Rubus parviflorus E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade S.E. of Orick Comment
  HSC89607  Rubus parviflorus M. Roantree 1985-8-25 11 Humboldt E side of Trinidad Head along paved rd. Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UC154221  Rubus spectabilis J. P. Tracy 1901-4-7 1001 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  RSA0009569  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC19696  Rubus ursinus Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  LA208254  Rubus ursinus H. Lewis; 1940-7-3 sn Humboldt Dry lagoon Beach, State Park Comment
  UC1334749  Rubus ursinus R. S. Woglum 1938-8-28 2041 Humboldt Trinidad Comment
  UCD17619  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 045 Humboldt California. Humboldt County: 2.3 miles north of Ettersburg on road to Honeydew. Comment
  HSC102932  Rumex M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 952 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC55178  Rumex acetosella Gilbert Muth 1979-8-1 12186 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC32426  Rumex acetosella Linda M. Barker 1974-5-11 171 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC89592  Rumex acetosella M. Roantree 1985-5-24 60 Humboldt E side of Trinidad Head Comment
  JEPS39909  Rumex conglomeratus W. L. Jepson 1936-8-17 17928 Humboldt 2.5 mi s Fields Landing Comment
  RSA280496  Rumex conglomeratus Lyman Benson 1998-7-11 s.n. Humboldt Weott Ranger Station, Seaward N Coast, S fork Eel. 61 Comment
Read comments Aug 16 2013
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  HSC34704  Rumex crispus Thomas W. Nelson 1974-7-20 1700 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS39876  Rumex crispus Lincoln Constance 1934-5-26 659 Humboldt near Founder's Tree (North Dyerville Flat grove); South Fork Eel River, Bull Creek Region, North Dyerville Fla 48 Comment
  HSC99577  Rumex occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 242 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
  RSA168912  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt Jenks Ranch. Mail Ridge, north of Harris 7 miles. Comment
  UCD92330  Rytidosperma R. Tofsrud 1946-11-1 33 Humboldt Humboldt County. Comment
  HSC19948  Salix exigua var. hindsiana H. E. Parks 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC107678  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10732 Humboldt Lagoon between the Mad and Little Rivers Comment
  CAS-BOT-BC107744  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  HSC19959  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-11 1225 Humboldt 1 mi. N of Samoa, near coast 0 Comment
  HSC90432  Salix hookeriana Jean Hanson 1980-3-8 19 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96609  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt W end of W Hawthorne St., Eureka 3 Comment
  JEPS14771  Salix hookeriana Joseph P. Tracy 1933-3-19 10924 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  RSA183589  Salix hookeriana R. D. Zortman 1963-3-9 11 Humboldt 5 miles NE of Arcata. S of the Mad River, off Warren Creek Rd. 91 Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1196630  Salix hookeriana J. P. Tracy 1905-3-26 2151 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1225922  Salix hookeriana Joseph P. Tracy 1947-7-2 17758 Humboldt 6 mi s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC469128  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470434  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC506346  Salix hookeriana Joseph P. Tracy 1933-3-19 10925 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC519334  Salix hookeriana H. E. Parks and Joseph P. Tracy 1933-6-11 12540 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 91 Comment
  UC1173614  Salix laevigata Joseph P. Tracy 1935-6-22 13960 Humboldt mouth of Larrabee Creek (on Eel River); Eel River 45 Comment
  HSC19978  Salix lasiandra J. W. Johnson 1962-3-7 1171 Humboldt Next to the barn of the Lanphere Farm, Samoa Peninsula Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC469477  Salix lasiandra subsp. lasiandra Joseph P. Tracy Jul 16 1930-Jul 19 1930 8929 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  CAS-BOT-BC125227  Salix lasiandra var. lasiandra Harold E. Parks 1931-3-24 0911 Humboldt Fortuna, on banks of Eel River 10 Comment
  JEPS12978  Salix lasiandra var. lasiandra Joseph P. Tracy 1932-4-17 9797 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel river 15 Comment
  CAS-BOT-BC107645  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS12943  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's Larrabee Creek; Northern Coast Ranges 457 Comment
  JEPS13082  Salix lasiolepis Joseph P. Tracy 1939-4-29 16237 Humboldt at mouth of Slate Creek Klamath River 121 Comment
  LA208772  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  UC1196623  Salix lasiolepis Joseph P. Tracy 1932-10-12 10874 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1196660  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9414 Humboldt thicket near mouth of Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC469416  Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC470408  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC490483  Salix lasiolepis Joseph P. Tracy 1932-9-5 10775 Humboldt upper Mattole Valley Northern Coast Ranges, upper Mattole Valley 152 Comment
  UC506343  Salix lasiolepis Joseph P. Tracy 1933-5-11 10932 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC506384  Salix lasiolepis Joseph P. Tracy 1933-4-2 10961 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC506504  Salix lasiolepis Joseph P. Tracy 1932-8-21 10358 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC512017  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC512043  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1318 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC519347  Salix lasiolepis Joseph P. Tracy 1933-10-15 13092 Humboldt along S. Fork Eel R. near Miranda; North Coast Ranges, S. Fork Eel R. 91 Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CDA39554  Salix lasiolepis Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  LA208775  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1932-5-17 1324 Humboldt W slope of Berry's Mountain; on Trinity Hwy; E of Redwood Creek 761 Comment
  CAS-BOT-BC125620  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt Junction of North and South forks of Eel River Comment
  HSC20037  Salix melanopsis J. P. Tracy, H. E. Parks 1931-3-26 909 Humboldt Van Duzen River Comment
  UC1196570  Salix melanopsis Joseph P. Tracy 1932-7-31 10292 Humboldt at mouth of Larrabee Creek Eel R.; Northern Coast Ranges, Eel R. 60 Comment
  UC469462  Salix melanopsis Joseph P. Tracy 1931-5-3 9345 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC481289 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481306  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519377  Salix melanopsis Joseph P. Tracy 1933-5-20 12258 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129204  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129171  Salix scouleriana H. E. Parks 1933-1-24 1353 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  LA208911  Salix scouleriana Harold E. Parks; 1931-5-14 957 Humboldt Little Larabee Bridge; Van Duzen River 450.0 Comment
  UC1196704  Salix scouleriana Joseph P. Tracy 1933-3-26 10942 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC212995  Salix scouleriana Joseph P. Tracy 1919-9-23 5283 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC470447  Salix scouleriana Joseph P. Tracy Jul 16 1930-Jul 19 1930 9095 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  POM220146  Salix sessilifolia H. E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC128987  Salix sitchensis Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-13 1256 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC128991  Salix sitchensis Doris K. Kildale 1926-6-29 2236 Humboldt Mouth of Mad River Comment
  HSC96615  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt N Spit Swamp, W side of highway 3 Comment
  UC1196714  Salix sitchensis Joseph P. Tracy 1933-5-20 12265 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC173584  Salix sitchensis Joseph P. Tracy 1935-7-24 14187 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  UC490500  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC490585  Salix tracyi Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  UC526722  Salix tracyi Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC57005  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9591 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC3992  Sambucus racemosa var. racemosa D. K. Smith 1968-3-3 9 Humboldt On West End Rd., ca. 3 mi. from Hwy. 299 Comment
  HSC47490  Sambucus racemosa var. racemosa Sheila Logan 1978-4-9 13 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  SDSU2909  Sambucus racemosa var. racemosa D. F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on #101. Comment
  UC602561  Sambucus racemosa var. racemosa Joseph P. Tracy 1932-7-14 10570 Humboldt ridges e Corral Prairie; Trinity Summit 1676 Comment
  SDSU2915  Sambucus racemosa var. racemosa Leslie Hickson 1990-4-15 15 IV90D Humboldt Across the street from the Oak Street and Apple Valley Lane junction. Eureka. Comment
  UC642301  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC223251  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Vicinity of South Yager Creek 762 Comment
  RSA183595  Sanicula crassicaulis C. F. Zeillemaker 1964-4-7 64 -A-3 Humboldt Three miles southwest of Samoa on Samoa Peninsula at US Coast Guard Station. 3 Comment
  UC314591  Sanicula laciniata Joseph P. Tracy 1923-3-17 6163 Humboldt Garberville Northern Coast Ranges, Garberville 121 Comment
  HSC44234  Sanicula tracyi B. Reinhardt 1975-7-17 801 Humboldt Six Rivers National Forest: Snow Camp area. Comment
  JEPS972  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  SEINET3240200  Santalaceae R. L. Mathiasen 2003-1 2003 -51 Humboldt 0.2 km NW of Blake Mountain on for. rd. 02N01 1760 Comment
  JEPS26213  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC74483  Saxifragopsis fragarioides Gail Newton 1980-7-24 1773 Humboldt Near Somes Mtn. 1615 Comment
  UC1197073  Scandix pecten-veneris Joseph P. Tracy 1923-3-17 6162 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  RSA246889  Schoenoplectus acutus var. occidentalis Robert F. Thorne, Percy C. Everett 1965-8-9 35283 Humboldt Big Lagoon. 3 Comment
  HSC7488  Schoenoplectus californicus P. W. Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC36077  Scirpus microcarpus Jack Watson 1962-5-2 Humboldt Wet soil along game pens of HSU campus Comment
  SEINET5161340  Scoliopus bigelovii Unknown 1998-3-10 s.n. Humboldt southern Humbolt County Comment
  UC175805  Scoliopus bigelovii Joseph P. Tracy 1913-3-9 4017 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC100562  Scoliopus bigelovii Carl C. Marshall Feb 1886 149 Humboldt Woods near coast. Comment
  SEINET3991325  Scoliopus bigelovii Unknown 1956-3-17 104 Humboldt South boundary of Jensen grove, off US Highway 101 Comment
  UCD18586  Scoliopus bigelovii Roman Gankin 1956-3-17 104 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
  UC1103134  Scribneria bolanderi Joseph P. Tracy 1932-6-26 10275 Humboldt North Coast Ranges, Fort Baker Ranch Fort Baker Ranch Fort Baker Ranch; North Coast Ranges, Fort Baker Ranch 762 Comment
  HSC38928  Scrophularia californica Linda M. Barker 1976-5-13 1473 Humboldt 3 mi. W of Arcata. Comment
  UC1011940  Scrophularia californica F. W. Pennell and J. P. Tracy 1940-7-6 26081 b Humboldt w Lolita (Table Bluff) 1 Comment
  HSC60289  Scrophularia californica Phyllis Krieg 1979-4-21 Humboldt Above Clam Beach Lagoon, E of Hwy. 101 0 Comment
  RSA475245  Scrophularia californica Lyman D. Benson 1938-7-11 385 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  SEINET12330006  Scrophularia californica F. H. Utech 1986-1 86 -407 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC32321  Scutellaria antirrhinoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5651 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1222864  Scutellaria antirrhinoides Joseph P. Tracy 1951-6-26 19577 Humboldt Twin Lakes vicinity, Snow Camp to Twin Lakes Twin Lakes vicinity Comment
  UC1713599  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  UC32586  Scutellaria antirrhinoides Chesnut and Drew 1888-7-9 Humboldt Jannigan's Comment
  UC604643  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  RSA34313  Scutellaria californica L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  HSC57960  Sedum divergens G. L. Clifton, Griswold 1979-7-31 11660 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1488732  Sedum laxum Gail Newton 1980-7-15 1549 Humboldt near Sims Mountain; Pilot Creek Quad., near Sims Mountain 430 Comment
  HSC99534  Sedum laxum subsp. flavidum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 199 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  UC169907  Sedum radiatum Harley P. Chandler June, 1901 1379 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation, Hupa Valley (Hupa Indian Reservation, North Coast Ranges) 152 Comment
  HSC74677  Sedum spathulifolium Gail Newton 1981-5-16 2170 Humboldt Near Bug Creek. 1228 Comment
  UC166026  Sedum spathulifolium Joseph P. Tracy 1906-5-6 2449 Humboldt near Hydesville; Northern Coast Region, near Hydesville 182 Comment
  UC205171  Sedum spathulifolium Harley P. Chandler June, 1901 1379 b Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC166031  Sedum spathulifolium Joseph P. Tracy 1907-7-4 2582 Humboldt coast bluffs near Trinidad; Northern Coast Ranges, near Trinidad 30 Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC49097  Sedum spathulifolium var. pruinosum Patricia Shesgreen 1978-7-30 120 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  HSC40630  Sedum spathulifolium var. spathulifolium Thomas W. Nelson, Jane P. Nelson 1977-5-15 3379 Humboldt Beside Hwy. 36 just W of Grizzly Creek Campground 152 Comment
  HSC40631  Sedum spathulifolium var. spathulifolium M. A. Baker 1977-4-9 273 Humboldt 4 mi. N of Hoopah on Hwy. 96 91 Comment
  SEINET203030 Image available Selaginella rupestris J. P. Tracy 1920-10-24 5407 Humboldt Around Humboldt Bay near Korbel 61 Comment
  CAS-BOT-BC69738  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  CDA8588  Senecio bolanderi var. bolanderi Gordon Leppig, M. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Road, Hely Creek watershed. Comment
  HSC57618  Senecio integerrimus var. major G. L. Clifton, Griswold 1979-7-25 10743 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC128743  Senecio integerrimus var. major Harley P. Chandler 1086 Humboldt Harris North Coast Ranges 304 Comment
  HSC102520  Senecio integerrimus var. major M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1532 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA167251  Senecio jacobaea Joseph P. Tracy 1946-8-18 17626 Humboldt East side of Big Lagoon Comment
  UC545823  Senecio minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  UCD135598  Senecio minimus P. B. Kennedy 1925-8-29 s.n. Humboldt northeast Eureka. Comment
  SEINET9305918  Senecio serra Unknown 1948-9-3 1857 Humboldt Near jct of Friday Ridge Rd and Horse Mtn-Grouse Mtn Rd. Growing on the borders of a pond near Clear Lake. Herbarium, Carnegie Museum (CM), Pittsburgh, PA. Comment
  JEPS37087  Senecio sylvaticus Lincoln Constance 1934-6-2 790 Humboldt Bull Cr. road to mouth of Bull Creek (and up the creek); South Fork Eel River, Bull Creek Region Comment
  UCD135752  Senecio sylvaticus W. L. Colwell 1955-10-1 30 Humboldt Brush Mountain. 1066 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
  HSC68086  Senecio triangularis J. P. Smith, Steve Selva 1970-6-30 4114 Humboldt Comment
  CAS-BOT-BC85845  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-11-1 s.n. Humboldt On flood plain of the Founders' Grove, Humboldt Redwoods State park Comment
  NY64458  Sequoia sempervirens J. P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304.8 Comment
  NY64510  Sequoia sempervirens R. R. Wilson 1938-4-14 189 Humboldt Near Redway Comment
  SDSU292  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D st Arcata. Empire series Sandstone, West slope. Ocean fog belt of North Coast. 55 Comment
  SEINET3876306 Image available Sequoia sempervirens K. S. Erdman 1970-6-19 4840 Humboldt Redwood Creek, about 2-3 miles above the road end. Near McArthur and Elam Creeks, Redwood National Park.; 0 Comment
  UC1530712  Sequoia sempervirens R. W. Becking 1984-9-23 Humboldt Federation of Women's Grove Humboldt Co. Weott, Humboldt Redwoods State Park, Federation (Humboldt Co. Weott <sic>, Humboldt Redwoods State Park) Comment
  UC333628  Sequoia sempervirens unknown Sept. 1901 Humboldt Eureka Comment
  SEINET11737926  Sequoia sempervirens K. S. Erdman 1970-1 4840 Humboldt Redwood Creek, about 2-3 mi above the road end, near McArthur and Elam Creeks, Redwood Nat'l Park Comment
  HSC40235  Sherardia arvensis J. P. Smith, J. O. Sawyer 1976-5-2 8618 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC205570  Sidalcea malachroides A. M. Vollmer; L. Beane 1951-6-11 136 Humboldt Yager Creek Road, on way to Carlotta Comment
  RSA168963  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  HSC103274  Sidalcea malviflora subsp. patula John McRae 2007-6-10 Humboldt Approx. 75 ft. N of NE corner of Fieldbrook School property, west side of Fieldbrook Rd., on private property. 44 Comment
  UC18900  Sidalcea malviflora subsp. patula C. C. Marshall 1888-1 Humboldt e branch of South Fork Eel River Comment
  HSC45617  Silene Diane L. Reed 1978-5-7 45 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  HSC35031  Silene bolanderi Thomas W. Nelson, James Nelson 1975-5-24 1849 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC100416  Silene californica Carl C. Marshall Jun 1885 93 Humboldt Hills everywhere. Comment
  UC668095  Silene campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , Hyampom Trail 1676 Comment
  CAS-BOT-BC174879  Silene campanulata subsp. glandulosa Volney Rattan 1883-1-1 s.n. Humboldt Hoopa Valley Comment
  RSA53804  Silene campanulata subsp. glandulosa H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  HSC23733  Silene laciniata subsp. californica Tim Baroni 1971-7-6 114 Humboldt 3 mi. S of Ferndale on Mattole Rd. Comment
  HSC60133  Silene laciniata subsp. californica M. A. Baker 1978-5-6 479 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC161035  Silene scouleri subsp. grandis Joseph P. Tracy Sept. 1904 2141 Humboldt bluff back Bucksport (at Eureka); Northern Coast Region, at Eureka 0 Comment
  HSC89540  Sisymbrium officinale M. Roantree 1985-4-28 26 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC44158  Sisyrinchium bellum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3589 Humboldt W side of road N from Alder Spring, head of N Fork of Conley Creek 1555 Comment
  HSC91875  Sisyrinchium bellum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park Comment
  HSC98162  Sisyrinchium bellum Brad Klipfel 1973-4-28 12 Humboldt Along Canyon Creek Comment
  RSA18062  Sisyrinchium californicum Carl B. Wolf 1927-8-22 789 Humboldt Big Lagoon Comment
  JEPS62117  Smilacina racemosa W. L. Jepson 1902-7-24 2115 a Humboldt 1/2 mi below summit; Trinity Summit Comment
  HSC67842  Solanum americanum J. P. Smith 1971-10-9 5002 Humboldt Mad River above the Fish Hatchery. Comment
  HSC93540  Solanum americanum Spadoni 1997-12-2 Humboldt 1335 J St., Eureka 15 Comment
  POM203673  Solidago canadensis subsp. elongata I. L. Wiggins 1932-7-25 5895 Humboldt Roadside near McKinleyville. Comment
  CAS-BOT-BC365437  Solidago elongata H. E. Parks 1931-7-1 01056 Humboldt Trinidad 76 Comment
  HSC56455  Solidago elongata Griswold, Butler 1979-7-12 7232 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  UC581770  Solidago elongata Joseph P. Tracy 1927-8-22 8346 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET6417800 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  HSC12310  Solidago spathulata Wendell Wood 1970-10-7 308 Humboldt Old Hwy. 101, E side of Freshwater Lagoon 46 Comment
  HSC43414  Sonchus asper R. Sutherland 1978-2-18 3 .18278 Humboldt S side mouth of Mattole River 9 Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  RSA244949  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  RSA796313  Spartina foliosa D. Kearns 1979-8-24 20 Humboldt Arcata Bay. Near the Arcata Boat Launching Facility at the south end of I Street. Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC4238  Spergula arvensis H. E. Parks May 1932 Humboldt Vicinity of Trinidad Comment
  RSA246888  Spergularia macrotheca R. F. Thorne, Percy C. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  CAS-BOT-BC149618  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  HSC97923  Spiraea douglasii Cara Witte 2007-6-19 291 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  SBBG3128  Spiraea douglasii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UCD114050  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 miles west of Arcata. Comment
  UC1196404  Spiranthes romanzoffiana Joseph P. Tracy 1936-8-2 15066 Humboldt French Camp Ridge; by spring 1066 Comment
  HSC100154  Spirodela polyrhiza J. M. DiTomaso 1979-4-21 893 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  UC146132  Spirodela polyrhiza Joseph P. Tracy 1908-6 2745 Humboldt nw slope Buck Mountain (pond above mouth of Little Van Duzen); Northern Coast Ranges 457 Comment
  CHSC84693  Stachys ajugoides var. rigida L. P. Janeway 2003-7-26 7922 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  CDA41012  Stachys ajugoides var. rigida T. C. Fuller 1958-6-17 1716 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  UC668217  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  JEPS63019  Stachys arvensis H. B. Tucker 1935-4-5 Humboldt Arcata Bottom; Arcata 9 Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  SEINET12273954  Stachys rigida L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UCD126043  Stachys rigida var. rigida Joseph P. Tracy 16-19 Jul 1930 9012 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  CAS-BOT-BC175346  Stellaria borealis subsp. sitchana Joseph P. Tracy 1900-5-22 795 Humboldt At Eureka 60 Comment
  UC302995  Stellaria crispa Joseph P. Tracy 1926-6-12 7586 Humboldt Prairie Creek; Northern Coast Ranges 152 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
  HSC74305  Streptanthus tortuosus M. A. Baker 1980-7-24 3205 Humboldt Near Orleans Mtn. 1625 Comment
  SDSU19192  Streptanthus tortuosus Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.7 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 980 Comment
  UC1541457  Streptanthus tortuosus H. E. Parks June 1951 Humboldt Rock Pile Knneland Comment
Read comments Jun 21 2013
  RSA520556  Streptopus amplexifolius Michael A. Hanson 1990-5-21 72 Humboldt On Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11.3 km) south of Klamath Comment
  UC1103500  Streptopus amplexifolius var. americanus Joseph P. Tracy 1930-7-17 8998 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  UC666814  Suksdorfia ranunculifolia Joseph P. Tracy 1935-7-24 14196 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC63139  Swertia radiata M. A. Baker 1979-6-27 935 Humboldt Head of Oregon Creek Comment
  CAS-BOT-BC269576  Symphoricarpos albus var. laevigatus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC39184  Symphoricarpos albus var. laevigatus D. E. Anderson, J. P. Smith 1971-6-28 - 1216 Humboldt Along Mad River, 2 mi. S of Blue Lake. 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
  HSC58804  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11705 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 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
  JEPS26262  Synthyris reniformis Joseph P. Tracy 1939-3-19 16205 Humboldt by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  UC902236  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 Humboldt Willow Creek Canyon, along Trinity Highway, near crossing of East Fork Willow Creek Canyon 457 Comment
  HSC6245  Tanacetum bipinnatum Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  UCSB6705  Tanacetum bipinnatum Keator, Glenn 1958-6-28 Humboldt At Little River along the northern coast of Humboldt county Comment
  SD39584  Tanacetum camphoratum Charlotte Hoak 1931-7-15 Humboldt Eureka Comment
  UCSB25217  Tanacetum douglasii J. R. Haller 1967-6-17 2181 Humboldt collected 10.0 mi N, at Clam Beach County Park, along U S Highway 101 Arcata - Clam Beach County Park, U S Highway 101, and Arcata Comment
  CAS-BOT-BC376895  Taraxacum officinale Doris K. Kildale 1926-5-24 1683 Humboldt Ryan Slough near Occidental Ranch Comment
  HSC30348  Taraxacum officinale Dale R. Gradek 1974-5-15 35 Humboldt Adjacent to road across the playground in Redwood Park 61 Comment
  HSC34807  Taraxacum officinale Lon Hall 1975-4-4 293 Humboldt Arcata. In front of 1735 J St. 15 Comment
  HSC59652  Taraxacum officinale Michael Dalke 1979-4-1 12 Humboldt 0.1 mi. E of Hwy. 101, N Bank Rd. 12 Comment
  HSC55212  Taxus brevifolia Walter Overton 1979-8-1 12351 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  JEPS49696  Tellima grandiflora Milo S. Baker 1923-7-20 Humboldt near South Yager Creek (Redwood House Road) Comment
  SEINET12221186  Tellima grandiflora J. P. Tracy 1950-1 18722 Humboldt near Mountain Glen Ranch, 7 mi S of Ferndale, Bear River Ridge 610 Comment
  UC1222362  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Bear River Ridge, summit of ridge); Bear River Ridge 609 Comment
  CAS-BOT-BC399768  Thalictrum polycarpum Joseph P. Tracy 1932-6-26 10263 Humboldt Northern Coast Ranges. Valley of South Yager Creek 762 Comment
  HSC28198  Thalictrum polycarpum Thomas W. Nelson 1971-5-31 454 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  RSA168931  Thalictrum polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  UC667955  Thelypteris nevadensis Joseph P. Tracy 1937-7-25 15556 Humboldt ne of Hawkins Bar (Happy Camp Mt.); Trinity Summit Range 1280 Comment
  UC495728  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ranch; Northern Coast Ranges 1066 Comment
  SEINET200821  Thermopsis rhombifolia J. P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge. 1067 Comment
  CAS-BOT-BC81306  Thuja plicata Doris K. Kildale 1927-5-13 3130 Humboldt Green Point, Redwood Creek road Comment
  CAS-BOT-BC81311  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt along the Blue Lake to Willow Creek Road (Lord Ellis Road), 9 miles above Blue Lake 243 Comment
  NY17194  Thuja plicata W. B. Cooke 1969-8-19 2222 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  HSC98805  Tiarella trifoliata var. unifoliata Cara Witte 2008-8-5 994 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  RSA24194  Tiarella trifoliata var. unifoliata Carl B. Wolf 1941-3-1 9979 Humboldt 1 mi. n.e. of Strongs Station (on the Van Duzen River) on rd. to Yager. 61 Comment
  SEINET12217530  Tiarella unifoliata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -291 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  RSA12561  Tofieldia glutinosa subsp. occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC858947  Tolmiea diplomenziesii Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC27661  Tonella tenella Mrs. M. H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  UCSC000695  Tonella tenella J. W. Blankinship 1893-6-20 s.n. Humboldt Larrabee Creek Comment
  HSC71597  Torilis arvensis M. A. Baker 1980-6-26 2409 Humboldt Near Sims Creek 610 Comment
  HSC74725  Torilis arvensis Gail Newton 1981-8-6 2411 Humboldt Near Mad River. 1308 Comment
  RSA12424  Torreyochloa pallida var. pauciflora C. B. Wolf 1934-7-2 5870 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  UCD93230  Torreyochloa pallida var. pauciflora Joseph P. Tracy 1940-10-5 16742 Humboldt mouth of Little River. 3 Comment
  CAS-BOT-BC169179  Toxicodendron diversilobum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  BLMAR509  Toxicoscordion micranthum Jennifer Wheeler 2009-5-12 509 Humboldt Red Mountain, In serpentine meadow S of School Section Creek 792 Comment
  HSC14449  Trichostema lanceolatum D. E. Anderson 1963-10-6 2878 Humboldt Mad River bed, across from Essex Junction. Comment
  JEPS63123  Trichostema lanceolatum W. L. Jepson 1921-9-11 9466 Humboldt DeVoy Flat, South Fork Eel River Comment
  BLMAR156  Trientalis latifolia Donald Hazlett 1994-6-7 156 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CHSC31274  Trientalis latifolia Mark Stopher 1980-5-20 70 Humboldt In dense forest along the Van Duzen River near Rte 36. Comment
  HSC17934  Trientalis latifolia J. Sandborg, F. Sandborg May 1968 5 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  UC1197230  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-6-10 2488 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC16496  Trifolium albopurpureum var. dichotomum Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 Humboldt near Harris Comment
  UC1223381  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt s the point (mouth of Domingo Creek); Cape Mendocino Comment
  UC1223383  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12245 Humboldt in valley along river Petrolia; Northern Coast Ranges, Mattole Valley Comment
  UC1197221  Trifolium albopurpureum var. olivaceum J. P. Tracy 1901-4-24 1040 Humboldt immediate vicinity Eureka 0 Comment
  UC1103432  Trifolium barbigerum Joseph P. Tracy 1932-5-10 9964 Humboldt near Petrolia (Mattole); North Caost Ranges 15 Comment
  UC1223511  Trifolium barbigerum J. P. Tracy 1942-5-16 17332 Humboldt vicinity Garberville 152 Comment
  UC33445  Trifolium barbigerum Joseph Burtt Davy and Walter C. Blasdale 1899-5 5684 Humboldt Hoopa Mtn Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  UC1223327  Trifolium campestre Joseph P. Tracy 1936-8-1 15060 Humboldt 6 mi se Blue Lake (near Bear Canyon Creek, in logged-off country) 365 Comment
  UC1197490  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-6-26 10273 Humboldt Fort Baker Ranch Northern Coast Ranges 762 Comment
  OBI78200  Trifolium dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt Mouth of Domingo Crk. Cape Mendocino, S of point of Cape 30 Comment
  UCD109725  Trifolium dichotomum R. Tofsrud 1948-1 s.n. Humboldt Humboldt County. Comment
  POM277890  Trifolium eriocephalum subsp. eriocephalum Lyman D. Benson 1929-6-18 1732 Humboldt North of Arcata Comment
  JEPS65891  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UCD111202  Trifolium hirtum A. H. Murphy 1947-8-19 s.n. Humboldt Fairground exper. Area, Fortuna. Comment
  UC1197048  Trifolium hybridum J. P. Tracy 1901-6-16 1158 Humboldt immediate vicinity Eureka 0 Comment
  CHSC70013  Trifolium macraei Sydney Carothers 1995-6-13 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. west of Arcata. Comment
  UC1197236  Trifolium macraei Joseph P. Tracy 1911-5-30 3204 Humboldt Bucksport Northern Coast Ranges, Humboldt Bay 0 Comment
  UC1212191  Trifolium macraei H. E. and S. T. Parks 1935-6-1 4994 Humboldt near coast (Egg Point); Trinidad Comment
  HSC98928  Trifolium microcephalum Cara Witte 2007-6-7 229 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  UC1223532  Trifolium variegatum var. variegatum Joseph P. Tracy 1950-6-29 18938 Humboldt 6 mi se Arcata (Fickle Hill) Comment
  HSC45643  Trifolium willdenovii Diane L. Reed 1978-4-22 18 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  SEINET12157351  Trifolium willdenovii J. P. Tracy 1942-1 17358 Humboldt 1 mi NE of Garberville on road to Harris 305 Comment
  UC1223315  Trifolium willdenovii Joseph P. Tracy 1938-6-8 15866 Humboldt Samoa Sand Dunes Comment
  UCD109957  Trifolium wormskioldii W. A. Williams 1956-6-19 s.n. Humboldt Domingues Creek. 91 Comment
  SEINET10862710  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1924-7-23 Heller 13876 Humboldt Wet soil in a ditch along the road leading to the lighthouse on Trinidad Head. Comment
  POM188101  Triglochin maritima Marcus E. Jones 1931-7-16 29221 Humboldt Arcata. Comment
  UC1364374  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-7 581 Humboldt just n. of Carlotta (just w. of CA Hwy. 36) Comment
  UC176697  Trillium albidum Joseph P. Tracy 1913-6-25 4333 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UC1197824  Trillium ovatum Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  RSA244948  Trillium ovatum D. V. Sanford 1963-3-23 11 Humboldt Redwood forest behind Humboldt State College campus. Comment
  SBBG1084  Trillium ovatum H. and M. Dearing 1933-5-15 269 Humboldt Humboldt County [no specific locality] Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  SEINET3992212  Trillium sessile Unknown 1928-4-29 8418 Humboldt Prairie Creek 152 Comment
  UC416790  Triodanis biflora Harley P. Chandler 1901-6-16 1514 B Humboldt Somes Bar North Coast Ranges, Klamath River, Somes Bar (Camp 276) 426 Comment
  HSC20849  Triphysaria eriantha subsp. eriantha B. Francis 1964-5-19 45 Humboldt 0.5 mi. S of Fairhaven Comment
  HSC59238  Triphysaria eriantha subsp. eriantha Clark L. Miller 1979-5-9 5115 Humboldt Along Samoa Blvd., 200 yards N of airport Comment
  UC1334892  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-5-2 669 Humboldt along the roadside of U.S. #101 at the Little River turnoff Comment
  HSC103298  Triphysaria pusilla Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3009 Humboldt Six Rivers National Forest; ~ 0.3 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1386 Comment
  HSC41654  Triphysaria pusilla J. O. Sawyer 1977-4-23 3044 Humboldt Road separator between Hwy. 101 and parking area at scenic overlook N of McKinleyville Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  UC1198041  Triphysaria versicolor subsp. versicolor J. P. Tracy 1901-5-16 1091 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC199629  Trisetum canescens David D. Keck 1948-7-2 6006 Humboldt E. side of Rock Ridge, E. of Berry's Summit, 4.1 miles W. of Willow Creek. Near Boundary of Six Rivers Nat'l Forest 457 Comment
  RSA44544  Trisetum canescens Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans, Humboldt County Comment
  UC1133274  Trisetum canescens H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. 0 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
  UCD93304  Trisetum canescens A. A. Beetle; G. L. Stebbins 1942-6-1 3457 Humboldt 7 miles north of Weitchpec, in northern Humboldt County. Comment
  UCD93635  Trisetum canescens R. Tofsrud 1947-7-1 199 Humboldt North of Harris. Comment
  HSC13121  Trisetum cernuum R. H. Berg 1963-5-1 60 Humboldt Arcata, H.S.U. campus. Comment
  SJSU911  Triteleia bridgesii J. W. Tilden 1946-6-20 1018 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  HSC39173  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-28 - 1229 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC1197715  Triteleia laxa Joseph P. Tracy 1948-5-31 18019 Humboldt Alder Point 152 Comment
  UC666898  Triteleia laxa Joseph P. Tracy 1930-7-27 8897 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC526352  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC526355  Triteleia laxa Doris K. Kildale 1926-5-16 2005 Humboldt Miranda, South Fork of Eel River Comment
  POM169620  Triteleia peduncularis Joseph P. Tracy 1903-6-12 1920 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC52241  Triteleia peduncularis J. P. Tracy 1903-6-12 1920 Humboldt Eureka vicinity 0 Comment
  UC15045  Triteleia peduncularis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5503 B Humboldt North Coast Ranges Comment
  CAS-BOT-BC85852  Tsuga heterophylla P. C. Everett; E. K. Balls 1953-10-13 18654 Humboldt 11.3 mi. to 16.6 mi. e. of jct. with Hwy 101 on Hwy 299 from Blue Lake 640 Comment
  NY64310  Tsuga heterophylla E. K. Balls 1953-10-13 18654 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCSB26310  Tsuga heterophylla Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC91108  Umbellularia californica Doris K. Kildale 1927-8-16 2515 Humboldt Upper Willow Creek Flat - Trinity River Valley. 152 Comment
  RSA46913  Umbellularia californica Doris K. Kildale 1926-1-24 1488 Humboldt Kneeland, near schoolhouse. 762 Comment
  HSC100513  Umbellularia californica Carl C. Marshall Apr 1887 358 Humboldt Moist ground back from coast. Comment
  POM380627  Urtica dioica subsp. gracilis Lyman D. Benson 1929-7-12 1792 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC1197783  Vaccinium membranaceum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9034 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  BLMAR145  Vaccinium ovatum Donald Hazlett 1994-6-7 145 Humboldt King range, near horse Mt. Ridge rd, east facing slope 670 Comment
  HSC28133  Vaccinium ovatum J. D. Ackerman, A. M. Montalvo 1973-3-27 45 Humboldt 1.5 mi. N of Manila Comment
  HSC47491  Vaccinium ovatum Sheila Logan 1978-4-9 15 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  CAS-BOT-BC199424  Vaccinium parvifolium Doris K. Kildale 1927-3-14 1533 Humboldt Southern approach to Blue Slide on old Bridgeville road. Van Duzen River Comment
  SEINET3107075  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC562450  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  HSC98632  Valeriana sitchensis subsp. scouleri Cara Witte 2007-5-21 73 Humboldt National Forest 1. 2 miles north of intersection with 4N09. 1267 Comment
  JEPS9384  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UC416772  Valeriana sitchensis subsp. sitchensis Mrs. M. H. Manning Aug. 1899 Humboldt Trinity Summit Comment
  HSC99654  Vancouveria hexandra Overton, Butler 1979-7-24 9673 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC26868  Vancouveria hexandra Clifton Raymond Chesbrough 1973-6-19 91 Humboldt 1/2 mi. N of College Cove Comment
  HSC37695  Vancouveria hexandra J. D. Ackerman 1974-4-26 181 Humboldt .3 mi. up Jolly Giant Cr. from HSU, Arcata. Comment
  UC1126306  Vancouveria planipetala A. E. Wieslander 1931-5-19 207 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  UCD95098  Vancouveria planipetala H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  CAS-BOT-BC391321  Velezia rigida Harley P. Chandler 1901-6-1 1306 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  JEPS51168  Velezia rigida W. L. Jepson 1902-7-25 2120 Humboldt Hupa Valley Supply Creek (Supply Creek); , Supply Creek Comment
  UC153947  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt marshy places at foot of hill 1 1/2 mi s Field's Landing; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC175819  Veratrum californicum var. californicum Joseph P. Tracy 1913-6-23 4280 Humboldt near summit ridge between Van Duzen and Mad Rivers (in wet meadow); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  CAS-BOT-BC527058  Veratrum viride var. eschscholzianum L. B. Kildale 1930-8-10 10206 a Humboldt Snow Camp, head of Redwood Creek Comment
  HSC40885  Verbascum thapsus Thomas W. Nelson, Jane Nelson 1976-6-22 2868 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC75284  Verbena menthifolia J. O. Sawyer, D. A. Thornburgh 1980-9-9 4084 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC56222  Veronica americana G. L. Clifton, Terry Griswold 1979-8-2 12254 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC21197  Veronica americana W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot Comment
  JEPS16826  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain in Trinity Summit Range); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC902233  Veronica arvensis Joseph P. Tracy 1942-5-16 17345 Humboldt Garberville 152 Comment
  RSA0049599  Veronica hederifolia var. triloba Dean Wm. Taylor 2013-5-8 21405 Humboldt Arcata, about the grounds of the Masonic Lodge, on Bayside road east of Highway 101 21 Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  UCD20170  Veronica serpyllifolia J. M. Tucker 1948-9-5 1866 Humboldt Near Hwy 101, 3.5 miles north of Myers. Comment
  JEPS16812  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-24 14176 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC56370  Vicia americana var. americana Griswold, Butler 1979-7-11 6391 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC56929  Vicia americana var. americana G. L. Clifton, Butler 1979-7-26 9357 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC162796  Vicia americana var. americana Joseph P. Tracy 1907-6-25 2575 Humboldt Elk River Valley; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC81921  Vicia gigantea Thomas W. Nelson, Jane P. Nelson 1979-7-3 4966 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC95539  Vicia gigantea Andrea Pickart 2002-5-26 111 Humboldt Lanphere Dunes, along dirt road to Lanphere Dune Office 0 Comment
  JEPS66183  Vicia hirsuta Frank W. Peirson 1923-7-11 3630 Humboldt n of Eureka Comment
  UC162859  Vicia hirsuta J. P. Tracy 1906-6-29 2513 Humboldt immediate vicinity Eureka 0 Comment
  POM68419  Vicia sativa Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SD131841  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299 roadside ca 8 miles east of Arcata, 9 1/2 mi. West of Lord Ellis summit Comment
  UCSB61648  Vicia tetrasperma Ertter, Barbara; Delendick, Thomas 1987-5-16 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit Comment
  HSC12434  Vinca major Gary J. Stebbins 1970-2-18 8 Humboldt Growing in waste lot within city limits of Arcata. 61 Comment
  CAS-BOT-BC263940  Viola adunca C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  UC1761603  Viola adunca C. V. Piper 1921-5-22 Humboldt Eureka Comment
  HSC98113  Viola cuneata Cara Witte 2007-6-26 360 Humboldt Horse Mountain Botanical Area. At intersection of 6N38 and National Forest 1. 1416 Comment
  HSC71790  Viola glabella Gail Newton 1980-6-16 178 Humboldt Near Monks Camp. 1097 Comment
  JEPS50368  Viola glabella W. L. Jepson 1902-7-16 2057 Humboldt Trinity Summit 2133 Comment
  UC1761601  Viola glabella H. E. Parks 1924-8-9 2447 Humboldt Carlotta Comment
  UC19284  Viola glabella Harley P. Chandler June, 1901 1285 Humboldt Hupa Indian Reservation; North Coast Ranges 1097 Comment
  HSC49905  Viola glabella Maralyn O'Meara 1973-6-12 205 Humboldt Above Clear Lake Comment
  UC275485  Viola hallii Joseph P. Tracy 1925-5-30 7034 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC1198452  Viola hallii Eleanor Ethel Tracy 1907-5-1 Humboldt near top of Lawrence Creek Hill; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC530124  Viola lobata subsp. integrifolia Doris Kildale 1931-5-10 10577 Humboldt Snow Camp Comment
  RSA66978  Viola ocellata E. K. Balls 1951-5-9 16514 Humboldt ca. 5 miles S of Richardson's Grove, Highway 101. Comment
  UCSB27855  Viola palustris Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville along Old Briceland Rd., 0.5 mi. north of roadside 213 Comment
  UC19300  Viola praemorsa subsp. linguifolia Harley P. Chandler June, 1901 1288 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Mountain, Hupa Indian Reservation 1097 Comment
  UC1121616  Viola praemorsa subsp. praemorsa R. Stahelin 1933-5-17 Humboldt Kneeland Prairie Comment
  RSA168956  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1950-4-20 18607 Humboldt Dinsmore's, along Van Duzen River, opposite Buck Mountain. 762 Comment
  UC1749316  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt headwaters of Yager Creek, South Fork Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  SBBG4837  Viola sempervirens H. and M. Dearing 1933-5-16 1066 Humboldt N of Weott Comment
  HSC21854  Viola sempervirens R. A. Eagle 1964-5-15 3 Humboldt H.S.C. campus, 300 yds. from water tank behind field house Comment
  HSC9826  Vulpia bromoides L. M. Malloy 1965-5-14 50 Humboldt 0.5 mi. W of Alliance Store along Alliance Rd. Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  UC187308  Vulpia microstachys var. microstachys Joseph P. Tracy 1902-6-3 1672 Humboldt near Fruitland Comment
  UCD94899  Vulpia myuros A. H. Murphy 1951-5-15 35 Humboldt Foster Ranch, 3 miles west of Miranda. Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC48479  Whipplea modesta Brad Klipfel 1974-9-17 580 Humboldt Horse Mtn. area Comment
  JEPS43494  Whipplea modesta Lincoln Constance 1934-5-31 761 Humboldt along Bull Cr. from w boundary of Park to Grasshopper Pk. (Squaw Crk.) rd. (n side of cr.); South Fork Eel River, Bull Creek Region, Bull Cr. flat Comment
  UC1198902  Whipplea modesta Joseph P. Tracy 1942-6-23 17232 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC79482  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt N fork of Dead Man's Gulch 84 Comment
  HSC13047  Woodwardia fimbriata Jana Kattenhorn 1970-10-24 122 Humboldt H.S.C. Campus, Arcata, N side of building 53 Comment
  RSA46704  Woodwardia fimbriata Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  CAS-BOT-BC382919  Wyethia angustifolia Doris K. Kildale 1927-5-20 3205 Humboldt Bug Creek 792 Comment
  OBI15343  Wyethia angustifolia Carl B. Wolf 1937-8-13 9222 Humboldt North Coast Range, 8 I E of Hoopa Valley on New rd towards Trinity summit 1219 Comment
  UC1223305  Wyethia angustifolia Joseph P. Tracy 1950-6-8 18739 Humboldt s slope near Capetown; Bear River Ridge 30 Comment
  CAS-BOT-BC326985  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt Eleven miles northeast of Bridgeville near Six Rivers National Forest 1295 Comment
  HSC93595  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  UC1199272  Wyethia longicaulis Joseph P. Tracy 1934-6-14 13218 Humboldt Horse Mountain 1371 Comment
  RSA12560  Xerophyllum tenax Carl B. Wolf 1934-7-2 5879 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  SD51273  Xerophyllum tenax Darley F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick, on Bald Mountain Road. Comment
  CAS-BOT-BC527082  Xerophyllum tenax Doris K. Kildale 1926-4-25 1814 Humboldt Hoopa Mountain 792 Comment
  HSC67968  Zeltnera muehlenbergii J. P. Smith 1973-5-26 6860 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC31209  Zigadenus micranthus D. E. Anderson 1972-6-20 5741 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS110509  Zostera japonica Gordon Leppig and David Couch 2006-11-17 2396 Humboldt Arcata Bay, mudflat W of City of Arcta oxidtion ponds, upper intetidal zone, 2 m from dike Comment
  UC175304  Zostera marina Joseph P. Tracy 1913-9-21 4408 Humboldt abundantly washed ashore on Samoa beach, doubtless washed from Humboldt Bay or Eel River Comment



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