Search Results — 2000 specimen records retrieved (1351 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
  HSC41313  Abies concolor Brad Klipfel 1974-9-2 543 Humboldt Horse Mountain Comment
  HSC55267  Abies concolor Overton, Butler 1979-8-2 12634 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC502913  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  HSC101445  Abies concolor var. lowiana Cara M. Witte 2008-6-13 719 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B 1417 Comment
  UC1173736  Abies grandis Joseph P. Tracy 1939-5-30 16298 Humboldt 1 mi below Dinsmore's (along bank of Van Duzen River); Van Duzan River 731 Comment
  CHSC68786  Abronia latifolia Vernon Oswald 1997-6-5 8536 Humboldt North spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  RSA0025088  Abronia latifolia M. B. Dunkle 1936-8-18 4817 Humboldt Moonstone Beach, N. Arcata. Comment
  JEPS61219  Abronia umbellata William S. Cooper 1925-7-30 128 Humboldt Little River Comment
  UC203875  Acer circinatum Joseph P. Tracy 1918-7-5 4999 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC668175  Acer glabrum var. glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC57158  Acer glabrum var. torreyi Overton, Butler 1979-7-26 9957 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC57655  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-25 10828 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC331588  Acer macrophyllum Doris K. Kildale; L. B. Kildale 1930-4-13 9575 Humboldt Bridgeville 289 Comment
  CAS-BOT-BC331593  Acer macrophyllum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC60003  Acer macrophyllum M. A. Baker 1978-5-6 466 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  CAS-BOT-BC28589  Achillea millefolium David D. Keck 1938-8-5 4775 Humboldt Big Lagoon Comment
  HSC75508  Achillea millefolium J. O. Sawyer, R. J. Cole 1977-7-3 3015 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UCD128333  Achillea millefolium H. E. Parks; S. T. Parks 1943-8-1 24246 Humboldt Egg Point, Trinidad. 121 Comment
  UC1196354  Achlys californica Joseph P. Tracy 1933-7-11 12692 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  SEINET12094127  Achlys triphylla F. H. Utech 1988-1 88 -275 Humboldt 14 mi W of Bridgeville on CA 36, Van Duzen County Park along Van Duzen River 50 Comment
  JEPS47775  Achlys triphylla subsp. triphylla Milo S. Baker 1923-7-29 166 Humboldt along hwy. near Lawrence Creek Comment
  SD42586  Achlys triphylla subsp. triphylla Carl B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 miles above Bridgeville on grade to Dinsmores 455 Comment
  UCD50521  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt At Board Camp Mountain, north side, at extreme head of Redwood Creek Comment
  UCD50691  Achnatherum lemmonii A. H. Murphy 1951-6-25 74 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  HSC71443  Acmispon micranthus J. P. Smith 1971-10-9 5047 Humboldt Mad River above the Fish Hatchery. Comment
  HSC40938  Acmispon micranthus Linda M. Barker 1976-6-1 1557 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CHSC35605  Acmispon parviflorus Jame P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC102039  Aconitum columbianum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 942 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  JEPS5767  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp Comment
  HSC56085  Aconitum columbianum subsp. columbianum G. L. Clifton, Griswold 1979-7-31 11773 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC73560  Aconitum columbianum subsp. columbianum M. A. Baker 1980-7-22 3111 Humboldt Near Grogan Hole. 1676 Comment
  HSC56210  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-2 12215 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC100608  Actaea arguta Carl C. Marshall Apr 1886 182 Humboldt Warren Creek. Comment
  HSC101545  Actaea rubra J. P. Smith, J. O. Sawyer 2009-8-11 12653 Humboldt Green Diamond Resource land along State Route 299. 762 Comment
  UC1196186  Actaea rubra Joseph P. Tracy 1901-7-31 1230 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CDA24176  Actaea rubra subsp. arguta F. Wetherbee 1962-7-11 Humboldt Bear River Ridge. 0 Comment
  CAS-BOT-BC391593  Actaea spicata var. arguta Doris K. Kildale 1926-8-15 2501 Humboldt Willow Creek Canyon 769 Comment
  HSC4589  Adenocaulon bicolor Paul Shields Jun 1955 Humboldt 2 miles S. Weott Comment
  RSA18020  Adenocaulon bicolor Carl B. Wolf 1927-8-21 s.n. Humboldt In Stephen's Grove Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  CAS-BOT-BC62297  Adiantum aleuticum Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  HSC13040  Adiantum aleuticum C. Kline, D. Santana Oct 1970 44 Humboldt HSC Campus Comment
  RSA687733  Adiantum aleuticum Anstruther Davidson 1923-10-8 17061 Humboldt Near Bridgeville Comment
  CAS-BOT-BC65627  Adiantum jordanii Doris K. Kildale 1927-3-16 2995 Humboldt Phillipsville, South Fork of Eel River 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
  UC668172  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt 10 mi upstream from the mouth Bear River 152 Comment
  UC1199315  Ageratina occidentalis Joseph P. Tracy 1939-8-20 16431 Humboldt near Blue Lake; Mad River 15 Comment
  HSC12532  Agoseris grandiflora Jos. Burtt Davy 1899-6-21 5727 Humboldt Hoopa Valley Comment
  UC582749  Agoseris grandiflora Joseph P. Tracy 1927-5-30 8093 Humboldt Garberville 121 Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  RSA167298  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt In fallow field at north end of town. Garberville. Comment
  CAS-BOT-BC29623  Agoseris grandiflora var. grandiflora J. T. Howell 1931-6-16 6714 Humboldt Valley Flat, 5 miles S of Garberville Comment
  UC1222943  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1948-8-15 18122 Humboldt 2 mi e, on ridge Grove's Prairie; Trinity Summit 1524 Comment
  UCD128614  Agoseris heterophylla James P. Smith 1973-5-5 6479 Humboldt Along Cook and Green Pass Road. Comment
  UC1199477  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7021 B Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  CAS-BOT-BC127522  Agrostis capillaris L. R. Abrams 1916-7-18 6139 Humboldt At Trinidad. Comment
  UCD51851  Agrostis capillaris W. A. Logan 1922-8-19 s.n. Humboldt From Geo. Garner of Arcata. Comment
  UCD51876  Agrostis capillaris var. aristata A. H. Murphy 1947-6-20 s.n. Humboldt Tooby and Prior Ranch, near Blocksburg. Comment
  UC526894  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt on bluffs facing ocean North Coast Ranges, Stone Lagoon 6 Comment
  CAS-BOT-BC127277  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Northern Coast Region. Eureka. 60 Comment
  CAS-BOT-BC127298  Agrostis exarata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC127324  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Northern Coast Region. Eureka. 60 Comment
  HSC99507  Agrostis exarata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 167 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
  UC184873  Agrostis exarata Joseph P. Tracy 1912-7-31 3892 Humboldt Burr Valley, on nw slope of Buck Mountain, stream bank Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  UC186904  Agrostis exarata Joseph P. Tracy 1911-7-7 3386 Humboldt 3 mi nw Junction of Willow Creek with Trinity River; Northern Coast Ranges 914 Comment
  HSC64757  Agrostis hallii Bruce Gordon 1978-8-4 121 Humboldt Redwood National Park, about 0.15 mi. NW of junction of Bald Hills Rd. and K & K Rd., in Lyon's Prairie. 774 Comment
  CAS-BOT-BC139452  Agrostis hyemalis Doris K. Kildale 1926-9-5 2624 Humboldt Lasseck's Peaks. Near Canal Camp. 1661 Comment
  CAS-BOT-BC139126  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  UC1145064  Agrostis oregonensis Joseph P. Tracy 1937-7-29 15582 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1145065  Agrostis oregonensis Joseph P. Tracy 1950-7-31 19243 Humboldt swampy places near summit; Grouse Mountain 1615 Comment
  UC552752  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt in wet meadow North Coast Ranges, Grouse Mountain 1524 Comment
  CDA28152  Agrostis stolonifera H. D. Bowers Sep 1938 s.n. Humboldt Nr Beatrice. 0 Comment
  HSC58825  Agrostis thurberiana Walter Overton 1979-8-1 12399 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SEINET195007  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt Humboldt Camp 10 miles south of Dyerville Comment
  UC1103298  Aira caryophyllea Joseph P. Tracy 1922-4-30 6017 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC34057  Aira caryophyllea J. P. Tracy 1900-6-25 860 Humboldt Immediate vicinity of Eureka 0 Comment
  UCD55782  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC138326  Aira caryophyllea var. caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  RSA256716  Aira praecox Lon Hall 1975-5-24 381 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  SEINET201011  Aira praecox J. P. Tracy 1932-5-16 10103 Humboldt Near Samoa on Humboldt Bay north coast region 6 Comment
  SEINET3917484  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak.; 0 Comment
  HSC102207  Allium amplectens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1122 Humboldt Andy's Camp 1564 Comment
  HSC102513  Allium amplectens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1499 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC462973  Allium bolanderi Harley P. Chandler 1901-6-1 1434 Humboldt Klamath River, North Coast Ranges 243 Comment
  HSC78654  Allium campanulatum D. K. Imper 1982-7-2 1490 Humboldt Near Connely Creek, N Fork 1493 Comment
  HSC57406  Allium falcifolium G. L. Clifton, Griswold 1979-7-26 10158 Humboldt Near Salmon Mtn. 2058 Comment
  HSC73850  Allium falcifolium M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat 1554 Comment
  CAS-BOT-BC135847  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1973-5-30 977 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Peak) 1789 Comment
  HSC23259  Allium triquetrum Jena Kattenhorn 1971-5-26 259 Humboldt Vacant lots of HSC campus Comment
  UC527556  Alnus incana subsp. tenuifolia C. B. Wolf 1931-8-28 2365 Humboldt Redwood Hwy 4 1/2 mi n Fortuna (on road to Eureka) 15 Comment
  POM160903  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt North Dobbyn Creek. 152 Comment
  SEINET5536121 Image available Alnus rhombifolia Joseph P. Tracy 1950-1 19375 Humboldt Klamath River near Slate Creek 122 Comment
  UC1197954  Alnus rhombifolia Joseph P. Tracy 1922-12-31 6134 Humboldt Cummings Creek Northern Coast Ranges, Van Duzen River (near Carlotta) 30 Comment
  UC275561  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6575 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  CAS-BOT-BC169548  Alnus rubra H. E. Parks; S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  UC1197947  Alnus rubra Joseph P. Tracy 1923-2-25 6151 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  SD42324  Alnus tenuifolia Carl B. Wolf 1937-8-13 9268 Humboldt North Coast Range, 12 miles east of Hoopa Valley on new road towards Trinity Summit 1675 Comment
  JEPS79806  Alnus viridis subsp. sinuata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9080 Humboldt near McKay Camp (along stream); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC8887  Alopecurus geniculatus Paul Shields 1955-10-7 Humboldt Essex Pond, near Blue Lake Comment
  HSC8888  Alopecurus geniculatus E. W. Styskel 1964-5-17 91 Humboldt Rio Dell, corner of Center St. and Hwy. 101 Comment
  UCD55908  Alopecurus geniculatus J. Lenz 1950-6-1 s.n. Humboldt Cranell. Comment
  UCR200272  Alopecurus geniculatus R. F. Thorne, Percy C. Everett 1965-8-9 35334 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  CAS-BOT-BC13705  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  HSC28482  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad River Beach Co. Park Comment
  HSC35864  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2130 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC74335  Amelanchier alnifolia Gail Newton 1980-6-16 152 Humboldt Near Monks Camp 1097 Comment
  CAS-BOT-BC142887  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CAS-BOT-BC142890  Amelanchier alnifolia var. semiintegrifolia Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC98537  Amelanchier alnifolia var. semiintegrifolia Cara Witte 2008-6-11 709 Humboldt Forest Service Road 5N10. At intersection of Forest Service Road 5N41. 1294 Comment
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  HSC26473  Amsinckia spectabilis T. O. Osborne 1970-4-8 15 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC57923  Anaphalis margaritacea Gilbert Muth 1979-7-31 11547 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  RSA21448  Anaphalis margaritacea C. B. Wolf 1937-8-13 9212 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  SEINET10674734  Anaphalis margaritacea Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 478 Humboldt Collected by Hwy. 101, N side of Orick. Rocky area, densely forested by river. 30 Comment
  CAS-BOT-BC391786  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  HSC99371  Anemone deltoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 20 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  HSC82404  Anemone deltoidea Thomas W. Nelson 1979-7-11 5034 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  RSA304843  Anemone deltoidea James R. Shevock 1971-5-30 681 Humboldt Biants Ave, Humboldt St. Park. 152 Comment
Read comments
Oct 20 2009
  HSC44403  Anemone oregana var. oregana R. York 1978-5-6 155 Humboldt Around Onion Lake on Bluff Creek Rd. 1220 Comment
  JEPS14169  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  JEPS14170  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC642313  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  HSC36598  Angelica hendersonii Linda Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1308 Humboldt Megwill Point on Elk Head, N of Trinidad, in Trinidad State Beach 15 Comment
  HSC21446  Angelica lucida S. J. Hawks 1965-5-18 71 Humboldt Clam Beach. Comment
  HSC56203  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-2 12194 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  UC642244  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UCD127179  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  UC89528  Anisocarpus madioides Harley P. Chandler June, 1901 1313 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC63858  Antennaria argentea Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  SEINET202631 Image available Antennaria rosea Joseph Tracy 1935-7-24 14169 .5 Humboldt Trinity Summit near ranger station 1829 Comment
  UC166080  Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Eureka 0 Comment
  HSC4670  Anthemis cotula Lincoln Constance 1934-5-27 694 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  RSA167204  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Gravel bar of Eel River at mouth of Van Duzen River Comment
  CAS-BOT-BC137781  Anthoxanthum Doris Kildale 1931-5-10 10557 Humboldt Snow Camp. Comment
  HSC40404  Anthoxanthum occidentale Linda M. Barker 1976-4-13 1387 Humboldt 3 mi. W of Arcata Comment
  HSC8951  Anthoxanthum odoratum E. W. Styskel 1963-5-19 43 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC104090  Anthoxanthum odoratum M. F. Norman 2015-4-11 5 Humboldt Arcata, Ma-le'l Dunes Comment
  HSC8941  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  UC1198741  Aphanes occidentalis Joseph P. Tracy 1919-4-27 5129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  SEINET6329793  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka, at Bucksport 152 Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC1197614  Apocynum androsaemifolium Joseph P. Tracy 1912-7-27 3887 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC103965  Arabis breweri var. breweri A. Thoele, Sydney Carothers 1995-7-13 39 Humboldt Six Rivers National Forest; Potato Hill, NE side of Pilot Creek. Take SR1 to jct. with 3N14, walk NW 1.4 mi., then SW 1/3 mi. down ridge 1498 Comment
  HSC81489  Arabis divaricarpa var. interposita Thomas W. Nelson 1979-7-11 5028 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  UCD128220  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  CAS-BOT-BC128652  Arbutus menziesii L. B. Kildale 1930-8-3 10489 Humboldt Chaparral Mt. at Bug Creek Comment
  HSC12860  Arbutus menziesii M. Athey, D. LaConte 1970-11-28 37 Humboldt HSU campus Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  OBI33237  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  RSA175206  Arbutus menziesii R. F. Thorne 1957-9-2 19006 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA183602  Arbutus menziesii Norman Dennis 1965-5-8 59 Humboldt 6 miles east of Blue Lake on Highway 299. Comment
  UCR32149  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  SEINET11984830  Arctostaphylos canescens Unknown 1965-1 540 Humboldt on USAL Road, 23 mi N of junction with CA 1 & 2.7 mi S of junction of Four Corners Comment
  CAS-BOT-BC23753  Arctostaphylos columbiana Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, coastal terrace Comment
  CAS-BOT-BC23761  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad Comment
  CAS-BOT-BC23791  Arctostaphylos columbiana C. Hart Merriam 1921-8-16 s.n. Humboldt Near summit of Berry Mountain, between Willow Creek and Arcata. Comment
  CAS-BOT-BC23797  Arctostaphylos columbiana H. E. Parks 1931-12-1 4950 Humboldt Hobson's, Trinidad 60 Comment
  HSC7618  Arctostaphylos columbiana J. Pursell 1964-10-11 10114 Humboldt Big Lagoon Park, 1 mi. N of Big Lagoon school, approx. 200 yds. W of the road Comment
  JEPS38961  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  RSA622687  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27789 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  UC1174868  Arctostaphylos columbiana P. C. Everett and E. K. Balls 1959-10-25 23965 Humboldt 8.8 mi ne from Blue Lake (US Hwy 299, Arcata to Willow Creek) 274 Comment
  UC1198661  Arctostaphylos columbiana Joseph P. Tracy 1928-3-4 8403 Humboldt Miranda South Fork of Eel River 121 Comment
  UC154196  Arctostaphylos columbiana Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Fruitland Comment
  UC484049  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd 7 mi s Honeydew P.O. 304 Comment
  UC718361  Arctostaphylos columbiana Carl B. Wolf 1934-7-2 5904 Humboldt 4 mi from Snow Camp (on road to Bald Mt.); Mts. E. of Korbel Comment
  UCD50673  Arctostaphylos columbiana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa; Big Hill Lookout Road. 1230 Comment
  RSA15551  Arctostaphylos columbiana var. columbiana C. B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  RSA81544  Arctostaphylos columbiana var. tracyi E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-11 18626 Humboldt 0.1 mi. N of Humbolt-Mendecino Co. line, Hwy 101. 168 Comment
  CAS-BOT-BC24824  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt Ridge 5 mi. s. of Harris on the road towards Bell Springs. 762 Comment
  CAS-BOT-BC39162  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt North Coast Range, 8 Mi. E. of Hoopa Valley on new road towards Trinity Summit. 1219 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
  HSC71673  Arctostaphylos manzanita M. A. Baker 1980-6-26 2386 Humboldt Near Sims Creek 610 Comment
  RSA633017  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27811 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633022  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27802 Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  HSC101660  Arctostaphylos manzanita subsp. glaucescens J. P. Smith, J. O. Sawyer 2011-4-23 13121 Humboldt Along road from Redway to Shelter Cove 212 Comment
  UC1193139  Arctostaphylos manzanita subsp. manzanita R. E. Nelson 1950-7-26 147 Humboldt 1/2 mi nw Neafus Peak; Quad 29D1 762 Comment
  UC1225895  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-7-18 17285 Humboldt Garberville 152 Comment
  CHSC85573  Arctostaphylos nevadensis L. P. Janeway 2003-7-30 7949 Humboldt High North Coast Ranges. Along Friday Ridge Road, at south end of Friday Ridge, 1.0 km (air) east-southeast of Friday Camp. Roadside. 1359 Comment
  HSC102094  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 997 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  RSA46717  Arctostaphylos nevadensis Doris K. Kildale 1967-8-15 15335 Humboldt High Divide. Comment
  CAS-BOT-BC40064  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  SEINET11988227  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4326 Humboldt Regional Parks Botanic Garden, Berkeley, orig. from French Camp Comment
  RSA257620  Arctostaphylos stanfordiana Gary D. Wallace 1975-8-23 1488 Humboldt W. side of Hwy. 101 1/4 mi. from Garberville along road toward Redway. Comment
  UC153963  Arctostaphylos uva-ursi Joseph P. Tracy 1901-4-26 1061 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD52154  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1149 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  CHSC79250  Arctotheca calendula G. D. Barbe; T. C. Fuller 1989-6-8 4321 Humboldt In pastures of the Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC137570  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Range. Vicinity of Garberville. 121 Comment
  HSC8975  Aristida oligantha J. P. Tracy 1933-8-27 13000 Humboldt Vicinity of Garberville, Robertson's Range 122 Comment
  HSC16896  Armeria maritima subsp. californica F. B. Plett 1963-4-27 33 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC581753  Arnica discoidea Joseph P. Tracy 1937-7-2 15398 Humboldt on ridge 2 mi e of, Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC82426  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  UC129316  Arnica discoidea Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5668 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  UC1057744  Arrhenatherum elatius W. L. Colwell 1957-7-6 42 Humboldt 6 mi nw of Bridgeville (Redwood House Ranch, Quadrangle 26C3); Redwood House Ranch 685 Comment
  UC573781  Arrhenatherum elatius H. S. Yates 1936-6-23 5851 Humboldt 2 mi e of Mouth of Mad River 30 Comment
  CAS-BOT-BC84836  Artemisia douglasiana Doris K. Kildale 1926-8-8 2472 Humboldt Dyerville Bridge 45 Comment
  HSC75260  Artemisia douglasiana J. O. Sawyer, M. A. Ericksen 1980-8-18 4054 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  OBI17056  Artemisia pycnocephala Carl B. Wolf 1940-11-10 9782 Humboldt Coast S of Mendocino-1/8 mi N of Where rd turns inland to Petrolia Comment
  UC1199379  Artemisia pycnocephala Joseph P. Tracy 1918-7-28 5089 Humboldt ocean beach at Humboldt Bay Comment
  RSA34239  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino Comment
  UCD112908  Aruncus dioicus var. acuminatus Joseph P. Tracy 1932-7-18 10708 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  UC154231  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  RSA296721  Asarum caudatum Clark L. Miller 1979-5-13 1 -129 Humboldt East of Hwy 101 from Seawood Drive. Comment
  SEINET8714984 Image available Asarum caudatum Unknown 1936-1 s.n. Humboldt Redwood forest on Yager Road from Carlotta, elevation about 1500 feet, Humboldt County, California. 457 Comment
  UCD15240  Asarum caudatum Glen Greenleaf 1974-4-10 13 Humboldt along highway 36, 10.8 miles east of Hydesville on south side of road. 140 Comment
  HSC72812  Asarum hartwegii Gail Newton 1980-7-20 1595 Humboldt Near Bell Swamps 1463 Comment
  HSC103116  Asarum hartwegii M. Mesler 2010-9-4 840 Humboldt Along trail E603 (Salmon Summit traihead to Red Cap Lake), about 100 m SE of Baylor Camp. 1677 Comment
  HSC100386  Aspidium aculeatum var. californicum Carl C. Marshall Jun 1887 483 Humboldt Jewett Creek. Comment
  RSA273373  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt North of Bear Creek 1463 Comment
  UC302329  Aspidotis densa Charlotte M. Wilder 1912-10-1 Humboldt ca. 6 mi above Kuntz P.O. (Upper Van Duzen River) 914 Comment
  UCSB48538  Aster David Edwards 1974-8-12 90 Humboldt collected in the S side of 7th street, just W of its overpass of U. S. Highway 101 in Arcata 7th street, U. S. Highway 101 and Arcata 18 Comment
  SEINET201024  Aster engelmannii J. P. Tracy 1919-9-18 5227 Humboldt Trinity Summit 1890 Comment
  RSA138315  Astragalus rattanii var. rattanii Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  UC302115  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC14595  Astragalus umbraticus D. E. Anderson 1963-9-29 2851 Humboldt Fish Lake. Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  SEINET948796  Astragalus umbraticus Joseph P. Tracy 1914-1 4595 Humboldt Bal mountians, between high prairie and snow camp. 1219 Comment
  UC179937  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC3824  Asyneuma prenanthoides D. E. Anderson 1962-7-17 2273 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  HSC98039  Asyneuma prenanthoides Cara Witte 2007-7-17 539 Humboldt Along 4N38. Road to Board Camp Mountain. 1388 Comment
  UCD66901  Asyneuma prenanthoides John M. Tucker 1948-9-3 1859 Humboldt Friday Ridge Road, just below Black Rock (junction of Friday Ridge Road and the Horse Mountain - Grouse Mountain Road). Comment
  HSC55110  Athyrium filix-femina var. cyclosorum G. L. Clifton 1979-7-31 11854 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC55184  Athyrium filix-femina var. cyclosorum G. L. Clifton, Terry Griswold 1979-8-2 12228 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC44042  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-9-3 3727 Humboldt Growing along Cr. draining N from pond above Alder Spring 1585 Comment
  HSC98974  Athyrium filix-femina var. cyclosorum Cara Witte 2007-8-9 626 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  JEPS53225  Athysanus pusillus W. L. Jepson 1902-6-20 1901 Humboldt Fort Seward Ranch Ridge, (=Mail Ridge), expedition from Ukiah to the Hupa Indian Reservation Fort Seward Ranch Ridge 1219 Comment
  CDA18213  Avena barbata G. D. Barbe, T. C. Fuller 1974-6-17 1841 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC100249  Avena fatua J. P. Smith, & J. O. Sawyer 2010-5-2 12793 Humboldt At junction of Hwy. 96 and Big Rock Access Road. 145 Comment
  UCD56463  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC66223  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  CAS-BOT-BC98770  Baccharis douglasii Frank W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake Comment
  JEPS21316  Baccharis glutinosa W. L. Jepson 1932-7-27 16425 Humboldt Bull Creek 106 Comment
  CAS-BOT-BC98028  Baccharis pilularis Elmer I. Applegate 1923-9-12 3990 Humboldt Stone Lagoon Comment
  CDA10384  Baccharis pilularis C. R. Tower Aug 1951 Humboldt General along Redwood Highway, Coast country. 0 Comment
  UC249855  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay Eureka, Humboldt Bay 30 Comment
  UC1222969  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt 7 mi n, at Mail Ridge Harris Comment
  UC525613  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC106352  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt Bear River, ten miles up stream from the mouth. 152 Comment
  HSC75814  Bensoniella oregona Bill Copeland 1980-6-26 308 Humboldt Near Murphy Meadow 914 Comment
  HSC76281  Berberis aquifolium var. repens Denis Kearns 1981-7-6 45 Humboldt Near Mosquito Lake 1122 Comment
  RSA24106  Berberis pinnata C. B. Wolf 1941-3-2 9989 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 1/4 mi. s. of Panther Gap. 549 Comment
  HSC55138  Bistorta bistortoides G. L. Clifton, Griswold 1979-8-1 12017 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC66276  Blechnum spicant Ira L. Wiggins 1957-6-20 14132 Humboldt east side of highway, Trinidad Comment
  HSC91603  Blechnum spicant E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, by trail to Agate Beach Comment
  CAS-BOT-BC15787  Boechera acutina Harold Ernest Parks; Joseph Prince Tracy 1949-6-25 11678 Humboldt Trinity Summit. At Box Camp. 1463 Comment
  JEPS53081  Boechera retrofracta H. P. Chandler Jun 1901 1511 Humboldt Klamath River Comment
  SEINET12188876  Boisduvalia densiflora J. P. Tracy 1950-1 18843 Humboldt Cape Mendocino, S of point of the Cape, Davis Creek 30 Comment
  HSC48731  Boschniakia strobilacea J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 521 Humboldt Off Forest Rd. 10N05, SE slope of Hopkins Butte 1037 Comment
  HSC74350  Boschniakia strobilacea Gail Newton 1980-6-17 221 Humboldt Near Onion Mtn. 1341 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  JEPS19058  Botrychium multifidum Milo S. Baker 1923-7-15 13 Humboldt southeastern outskirts of Eureka (near M and Hays Streets) Comment
  CAS-BOT-BC420265  Boykinia occidentalis Doris K. Kildale 1928-7-29 5928 Humboldt Bear River at Capetown 15 Comment
  CAS-BOT-BC420269  Boykinia occidentalis Harley P. Chandler 1901-6-1 1501 Humboldt Klamath River 426 Comment
  HSC64874  Boykinia occidentalis J. P. Smith 1973-5-26 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM89211  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon, south of Orick. Comment
  POM232051  Boykinia occidentalis Roxana S. Ferris 1937-8-21 9390 Humboldt Cleft in cliff above beach. Shelter Cove. Comment
  RSA466750  Boykinia occidentalis Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  HSC6580  Brassica rapa J. L. Baker 1965-3-9 5 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC32555  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1145096  Briza maxima Joseph P. Tracy 1938-7-15 16061 Humboldt Bucksport; (adjacent to Eureka) 9 Comment
  UCSB19699  Brodiaea elegans subsp. elegans Myrick, Donald 1964-7-26 Humboldt State Highway 299, 15 mi E of Arcata 762 Comment
Read comments
Feb 16 2009
  HSC35610  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2022 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  JEPS7634  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 c Humboldt near camp on South Fork Yager Creek; North Coast Trip, South Fork Yager Creek Comment
  SEINET200765  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek 762 Comment
  JEPS516  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-5-30 14837 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1197740  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1928-5-20 8441 Humboldt halfway between the ocean and Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  RSA259587  Bromus carinatus D. E. Anderson, J. P. Smith 1971-6-28 1971 Humboldt ca. 2.5 mi. south of Blue Lake along the Mad River. Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UCD59215  Bromus carinatus var. marginatus R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  HSC9299  Bromus diandrus P. N. Slattery 1963-4-27 36 Humboldt Clam Beach Comment
  HSC90691  Bromus hordeaceus Gail Newton 1982-5-31 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1103362  Bromus hordeaceus Joseph P. Tracy 1939-4-29 16260 Humboldt Orleans 121 Comment
  UC526925  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt 2 to 5 mi e of South Fork Eel River (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  SEINET11682985  Bromus hordeaceus K. S. Erdman 1970-1 4784 Humboldt Doleson Hill Prairie, Bald Hills Rd SE of Orick Comment
  UC37642  Bromus laevipes Joseph Burtt Davy 1899-6-27 5871 Humboldt Hupa Valley Comment
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC70780  Bromus tectorum R. York 1980-5-17 546 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC185518  Bromus vulgaris Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek near Orleans. Comment
  HSC58810  Bromus vulgaris G. L. Clifton, Griswold 1979-8-1 11988 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 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
  UC167232  Bromus vulgaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5363 Humboldt near Harris (North Coast Ranges); North Coast Ranges Comment
  UC1198277  Cakile edentula Joseph P. Tracy 1941-8-3 16978 Humboldt at w foot of Table Bluff Table Bluff 3 Comment
  CAS-BOT-BC36855  Cakile edentula var. edentula Alice Eastwood; John Thomas Howell 1934-4-11 1323 Humboldt Trinidad. Comment
  UC1565648  Calamagrostis foliosa Ken S. Berg 1986-9-13 Humboldt Shelter Cover Telegraph Creek (mouth of creek) Comment
Read comments
Mar 31 2007
  HSC76541  Calamagrostis koelerioides Denis Kearns 1981-7-6 85 Humboldt Near Mosquito Lake 1256 Comment
  HSC17625  Calandrinia ciliata Francis Winter 1960-5-7 Humboldt French Camp Ridge, 3 mi. W of Burnt Ranch 671 Comment
  UC1103695  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1939-7-9 16346 Humboldt Snow Camp 1402 Comment
  HSC62990  Callitriche stagnalis David Wheeler 1979-4-22 80 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment
  UC668185  Callitriche trochlearis Joseph P. Tracy 1936-6-17 14952 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  UC502900  Calocedrus decurrens Joseph P. Tracy 1932-7-13 10499 Humboldt open ground at Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC488457  Calochortus amabilis L. R. Abrams 1916-7-11 6980 Humboldt Between Blacksberg + Bridgeville Comment
  HSC15381  Calochortus tolmiei D. E. Anderson 1965-5-8 3653 Humboldt 3.5 mi. N of Willow Creek along rd. running along E of Trinity River Comment
  UCR45374  Calochortus tolmiei Thomas W. Nelson 1977-6-15 3450 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  CAS-BOT-BC494357  Calochortus tolmiei Doris Kildale 1931-5-10 10563 Humboldt Snow Camp Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  HSC102008  Caltha leptosepala M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 909 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC55997  Caltha leptosepala Overton, Butler 1979-7-31 11439 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC175973  Calycadenia truncata Joseph P. Tracy 1908-7-1 2761 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 914 Comment
  RSA183504  Calypso bulbosa D. E. Anderson 1965-5-15 3683 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  UC1196472  Calypso bulbosa Joseph P. Tracy 1923-4-15 6192 1/2 Humboldt Northern Coast Ranges, Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC38746  Calypso bulbosa var. occidentalis J. D. Ackerman 1976-4-27 754 Humboldt 10 mi. E of Blue Lake on road to Maple Creek Comment
  HSC98759  Calyptridium monospermum Cara Witte 2008-7-2 815 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  LA103753  Calystegia soldanella Robert F. Thorne; P. C. Everett 1965-8-9 35307 Humboldt Big Lagoon 3 Comment
  CDA39887  Calystegia soldanella B. F. Kemp May 1958 1202 -58 Humboldt Mouth of Mad River. 0 Comment
  RSA244983  Calystegia soldanella R. E. Jones 1966-4-13 43 Humboldt Cape Mendocino 6 miles south of Cape. Comment
  UC1586964  Camassia Juha Pykala and D. H. Norris 1987-6-5 1391 Humboldt e of Maple Creek (Snow Mountain Lake); Snow Mountain Lake 1386 Comment
  UC302169  Camassia quamash Joseph P. Tracy 1925-7-5 7179 1/2 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC12428  Camissonia cheiranthifolia Gary J. Stebbins 1970-4-18 69 Humboldt Along Rd. to Samoa, 1.1 mi. S of Mad River Slough bridge Comment
  NY679575  Camissonia cheiranthifolia subsp. cheiranthifolia C. C. Harris 1939-8-23 970 Humboldt At Samoa. Comment
  CHSC1144  Camissoniopsis cheiranthifolia subsp. cheiranthifolia M. Underhill 1952-7-13 Humboldt Seashore. 0 Comment
  SEINET10462973  Campanula prenanthoides Overton 1979-7-24 OVERTON 9693 Humboldt Near Friday Camp, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  SEINET10905896  Campanula prenanthoides Nelson 1974-7-19 NELSON 1671 Humboldt McKeown Ranch north of Dinsmore. Oak-Douglas Fir woodlands, dry NE slope. T2N R5E SECS.28,29,33,34 Comment
  HSC74731  Campanula scouleri Gail Newton 1981-7-24 2300 Humboldt Near Chaparral Mtn. 1433 Comment
  SEINET10463745  Campanula scouleri Newton 1981-7-24 Newton 2300 Humboldt Iaqua Buttes quadrangle; near Chaparral Mountain, forest openings. 1433 Comment
  JEPS11743  Campanula scouleri Milo S. Baker 1923-7-20 52 Humboldt road from Redwood House to Yager 609 Comment
  SEINET10463763  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UC160970  Capsella bursa-pastoris Joseph P. Tracy 1911-5-21 3186 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC6623  Capsella bursa-pastoris Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  CAS-BOT-BC37425  Cardamine californica Doris K. Kildale 1929-4-27 7444 Humboldt Lord Ellis road near Bald Mountain junction. (road to Willow Creek). Comment
  CAS-BOT-BC37432  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River near Bridgeville. Comment
  CAS-BOT-BC37433  Cardamine californica Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  SFV18478  Cardamine californica J. Wanamaker, M. Ellestad, S. Magnuson 1998-2-28 s. n. Humboldt Trinidad. 0.75 miles along Mill Creek trail. 18 Comment
  CHSC499  Cardamine californica var. sinuata G. Spurlock 1935-3-9 Humboldt Van Duzen river. Comment
  UC1103807  Cardamine oligosperma Joseph P. Tracy 1911-7-7 3396 Humboldt at the meadows on Mountain Side three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/ Trinity River 914 Comment
  HSC27556  Cardamine oligosperma J. D. Ackerman, A. M. Montalvo 1973-5-6 73 Humboldt 3 mi. NW of Weott on Avenue of the Giants Comment
  UCD114541  Cardamine oligosperma Joseph M. DiTomaso 1976-3-28 362 Humboldt 3 miles east of Willow Creek on Highway 299. Comment
  CAS-BOT-BC384762  Cardionema ramosissimum L. R. Abrams 1916-7-18 6124 Humboldt Arcata to Trinidad Comment
  UC1225795  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River 6 Comment
  JEPS75414  Carex W. L. Jepson 1932-7-26 16411 Humboldt s bank, Bull Creek Bull Creek 106 Comment
  HSC97167  Carex abrupta Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 12 Humboldt 1 mi. east of Hwy. 299 on Forest Service Road NF1; Grouse Mountain Meadow 1585 Comment
  UC197208  Carex abrupta Joseph P. Tracy 1913-6-13 4104 1/2 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC103599  Carex angustata Thomas W. Nelson, Jane Nelson 1987-6-11 8609 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC18008  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  SEINET2044695 Image available Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie. 1052 Comment
  UC562629  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity summit, Corral Prairie Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  RSA246879  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 a Humboldt Mt. Chamisal: below summit. 747 Comment
  HSC48136  Carex bolanderi D. H. Norris 1971-7-17 19599 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  UC249736  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  UC562723  Carex concinnoides Joseph P. Tracy 1927-4-23 7911 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  CAS-BOT-BC34979  Carex densa Joseph Prince Tracy 1936-6-17 14953 Humboldt Northenr Coast Ranges. Buck Mountain, lower foothills of its northwestern slope. 762 Comment
  UC562257  Carex densa Joseph P. Tracy 1936-6-3 14847 Humboldt Trinity River Valley at Willow Creek 152 Comment
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  UC1103106  Carex deweyana subsp. leptopoda Joseph P. Tracy 1904-7-17 2123 Humboldt Hydesville 60 Comment
  HSC74421  Carex echinata subsp. echinata Gail Newton 1980-8-10 2044 Humboldt Near Blake Mtn. 1707 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  CHSC98332  Carex feta Thomas W. Nelson; Jane P. Nelson 1982-7-11 7115 Humboldt North Coast Ranges. Along road from Hindley's cabin on McKeown's ranch to Anderson's ford at Mad River. T02N R05E S28 and 29. Comment
  HSC103369  Carex feta Thomas W. Nelson, Jane Nelson 1982-7-11 7115 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  HSC43478  Carex feta Thomas W. Nelson 1976-7-9 2999 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  SEINET4292220 Image available Carex fracta Unknown 2003-1 7942 Humboldt On northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. Grouse Mountain quad. Comment
  HSC98938  Carex fracta Cara Witte 2007-6-28 389 Humboldt Friday Ridge Road/ 6N08. 1389 Comment
  CAS-BOT-BC20877  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  UC906711  Carex globosa Harold E. Parks and Joseph P. Tracy 1942-5-16 11556 Humboldt vicinity Garberville 152 Comment
  CAS-BOT-BC21018  Carex hendersonii C. V. Piper 1921-5-22 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC7565  Carex integra Joseph Prince Tracy 1935-7-23 14139 Humboldt Trinity Summit. Open places at Corral Prairie. 1584 Comment
  JEPS25977  Carex integra Joseph P. Tracy 1935-7-23 14139 Humboldt at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  JEPS79847  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CHSC93262  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8583 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC58803  Carex lenticularis var. lipocarpa G. L. Clifton, Griswold 1979-7-31 11681 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA22169  Carex leptopoda Joseph P. Tracy 1937-6-20 15353 Humboldt Bear river, ten miles up stream from the mouth 152 Comment
  HSC102233  Carex luzulina M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1155 Humboldt Patterson Meadows 1555 Comment
  UC1115806  Carex luzulina var. luzulina Joseph P. Tracy 1937-7-9 16341 Humboldt Snow Camp 1402 Comment
  CHSC90270  Carex lyngbyei Thomas W. Nelson; Jane P. Nelson 1987-4-27 8435 Humboldt North Coast Ranges. Along estuary to Cooper Gulch south side of street crossing. 1 Comment
  UC562657  Carex mariposana Joseph P. Tracy 1935-7-23 14141 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC31823  Carex mendocinensis R. Tallent 1935-7-14 14086 Humboldt Six Rivers National Forest. Roadside of Horse Mtn. 1419 Comment
  CHSC84738  Carex microptera L. P. Janeway 2003-7-26 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC102157  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1065 Humboldt Patterson Meadows 1555 Comment
  UC562260  Carex multicaulis Joseph P. Tracy 1927-3-27 7862 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET3905221  Carex nudata L. P. Janeway 1983-7-23 434 Humboldt Arcata North quad, along north edge of Mad River, near junction of North Bank Road and Hunts Drive.; 0 Comment
  UC562318  Carex nudata Joseph P. Tracy 1927-5-30 8082 Humboldt near Garberville (Redwood Creek) 121 Comment
  CHSC23307  Carex obnupta Robert F. Thorne; P. Everett 1965-8-7 35199 Humboldt Big Lagoon; at edge of bog at S end of lagoon. 1 Comment
  POM289940  Carex obnupta Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad. Comment
  CAS-BOT-BC119268  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore's Comment
  UC1152077  Carex pachycarpa Joseph P. Tracy 1950-7-25 19064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC119230  Carex pachystachya Joseph Prince Tracy 1927-5-29 8077 Humboldt Big Lagoon 6 Comment
  JEPS79854  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  BLMAR70  Carex pansa Jennifer Anthony-Wheeler 1994-5-18 70 Humboldt Samoa/manilla dunes, growing intermittently in wet area in the samoa dunes rec. area 6 Comment
  UCSC000108  Carex pansa C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  UC562247  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-17 10675 Humboldt meadow heading into Devil's Hole; Trinity Summit 1828 Comment
  JEPS121648  Carex scopulorum var. bracteosa Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  UC302095  Carex serratodens Joseph P. Tracy 1913-6-13 4107 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103585  Carex serratodens Joseph P. Tracy 1925-5-30 7049 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  SEINET10856669  Carex stipata Joseph P. Tracy 1931-5-17 Tracy 9422 Humboldt Lack Pond; in Trinity River Valley, opposie mouth of Willow Creek. 152 Comment
  SEINET4290245 Image available Carex subbracteata Unknown 2009-1 24497 Humboldt Outer North Coast Range (NCoRo), between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. Comment
  UC1103097  Carex subbracteata J. P. Tracy 1900-6-25 861 Humboldt immediate vicinity Eureka 0 Comment
  UC303006  Carex subfusca Joseph P. Tracy June, 1926 7631 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC116674  Carex subfusca Stuart Kimball Harris; J. P. Tracy; Harry Stanley Yates 1936-6-17 3447 Humboldt NW slopes of Buck Mountain. 822 Comment
  SEINET10880003  Carex subfusca David Castaner 1989-5-28 Castaner 8067 Humboldt Patrick Point SP area. Redwood forest. Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  POM126148  Carex tumulicola Joseph P. Tracy 1923-5-13 6205 Humboldt Near Bridgeville. Comment
  UC585639  Carex tumulicola Joseph P. Tracy 1937-5-17 15295 Humboldt near Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC115539  Carex unilateralis Joseph Prince Tracy 1930-6-15 8756 Humboldt Bordering a pond, Dobbyn Creek 152 Comment
  HSC99381  Carex utriculata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 30 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
  UC1152051  Carex utriculata Joseph P. Tracy 1950-7-25 19065 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC114985  Carex viridula Joseph Prince Tracy 1924-7-13 6720 Humboldt In brackish swamp, Big Lagoon. 6 Comment
  RSA246760  Carpobrotus chilensis R. F. Thorne, P. Everett 1965-8-9 35306 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC249128  Castilleja affinis Doris Kildale Gillespie 1931-6-7 10652 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC97203  Castilleja affinis subsp. affinis Kiera A. Freeman, Heather J. Perry 2007-6-4 2 Humboldt 8 mi. S of Hwy. 299 on NF1 1372 Comment
  JEPS83  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 b Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  SBBG7047  Castilleja ambigua subsp. ambigua H. and M. Dearing 1939-5-25 3430 Humboldt beach N of Loleta Comment
  HSC49512  Castilleja ambigua subsp. humboldtiensis R. York 1979-5-18 299 Humboldt Around Humboldt Bay Comment
  HSC90779  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  UC604635  Castilleja applegatei subsp. martinii Joseph P. Tracy 1932-5-22 10118 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC23104  Castilleja applegatei subsp. pinetorum D. E. Anderson 1965-5-8 3638 Humboldt N of Willow Creek along Rd. on E side of Trinity River Comment
  UC582583  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC60038  Castilleja attenuata M. A. Baker 1978-5-6 492 Humboldt 2 km. W of Weitchpec along Klamath River Comment
  UC1173698  Castilleja attenuata Joseph P. Tracy 1939-4-29 16255 Humboldt Orleans 121 Comment
  UC1196861  Castilleja miniata Joseph P. Tracy 1912-7-31 3950 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  JEPS13340  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt Laribee Valley 792 Comment
  SBBG26849  Castilleja rubicundula subsp. lithospermoides H. E. Parks, J. P. Tracy 1930-5-25 796 Humboldt vicinity of Bridgeville, Laribee Valley (Larabee Valley) Comment
  UC886507  Castilleja rubicundula subsp. lithospermoides Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  JEPS35816  Castilleja wightii Rimo Bacigalupi, and L. R. Heckard 1964-7-27 8962 Humboldt .12 mi e and above Shelter Cove (in shaded bend of road) Comment
  UC1502123  Ceanothus R. Sutherland 1975-7-5 6 .5.7 75 Humboldt Garberville Quad. 243 Comment
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May 26 2014
  HSC41300  Ceanothus arcuatus Brad Klipfel 1974-7-27 499 Humboldt Horse Mtn. Comment
  HSC36640  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1901 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CAS-BOT-BC49656  Ceanothus foliosus var. foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Highway, 7/10 mi. no. of Jnct. with State Highway #1 from Ft. Bragg. 60 Comment
  CAS-BOT-BC50051  Ceanothus incanus H. E. McMinn 1922-7-1 382 Humboldt S. Fk. Eel River Comment
  UC1193319  Ceanothus incanus R. H. Neuns 1950-7-13 130 Humboldt 3 miles south of Alder Point 548 Comment
  UC275284  Ceanothus incanus Joseph P. Tracy 1924-5-11 6677 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC18380  Ceanothus oliganthus var. sorediatus P. J. Zinke 1950-10-4 166 Humboldt 2 mi E of Honeydew 1829 Comment
  CAS-BOT-BC51215  Ceanothus parryi Lester Rowntree 1934-5-6 s.n. Humboldt Near Richardson Grove Comment
  CAS-BOT-BC51224  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  SBBG68534  Ceanothus parryi L. Rowntree -Jul-1931 Humboldt Ettersburg Comment
  UC1502108  Ceanothus parryi R. Sutherland 1975-4-19 A 4 .19.4.75 Humboldt Whitethorn Road at Van Arken Creek; Briceland Quad., Van Arken Creek 298 Comment
  UC249583  Ceanothus parryi Joseph P. Tracy 1921-5-27 5808 1/2 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC18314  Ceanothus pumilus Francis Winter 1960-4-24 Humboldt Along rd., French Camp Ridge 915 Comment
  HSC74332  Ceanothus pumilus Gail Newton 1980-6-16 149 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC52220  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1553 Humboldt Big Lagoon Comment
  CAS-BOT-BC52992  Ceanothus thyrsiflorus Terry Hines; Ellen Purcell; Nina Williams 1988-5-1 66 Humboldt Korbel turnoff, 1/2 mile from weigh station on Hwy 299. 60 Comment
  HSC98197  Ceanothus thyrsiflorus R. Sutherland 1975-7-4 2 .4775 Humboldt Along Shelter Cove Rd. 0.5 mi W of Horse Mtn. Rd. 579 Comment
  UC774513  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt summit Trinidad Head; Summit of Trinidad Head 45 Comment
  SEINET13946096 Image available Ceanothus thyrsiflorus F. G. Meyer 1938-1 1404 Humboldt 30 mi N of Eureka Comment
  SBBG4536  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad Comment
  UCD112775  Ceanothus velutinus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  CDA7084  Centaurea calcitrapa J. F. Hart 1963-9-17 Humboldt Whitlow, Eel River, 2 miles east of McCann. 0 Comment
  CDA7085  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  HSC100256  Centaurea solstitialis J. P. Smith 2009-8-3 12644 Humboldt Along the Eel River. 23 Comment
  UC582526  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of South Fork (along Eel River); Eel River 45 Comment
  HSC90328  Centaurium erythraea Jean Hanson 1980-6-22 104 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island, 50 ft. NW of dike Comment
  POM128272  Centaurium muehlenbergii M. H. Manning s.n. Humboldt Hupa [Hoopa] Valley. Comment
  POM225120  Centaurium muehlenbergii P. A. Munz 1936-8-9 14329 Humboldt Half a mile north of Humboldt-Mendocino county line, in Redwood Highway. Comment
  RSA50142  Centaurium muehlenbergii E. K. Balls 1949-7-11 13970 Humboldt Nine miles from Bluff Creek, on Highway 96 on way to Willow Creek. 110 Comment
  UCD121519  Centaurium tenuiflorum Joseph P. Tracy 1948-8-22 18109 Humboldt Van Duzen River, 4 miles E. of Carlotta. 30 Comment
  UC275461  Centromadia fitchii Joseph P. Tracy 1925-8-23 7247 Humboldt Harris Northern Coast Ranges 914 Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  UC199562  Cephalanthera austiniae Chesnut and Drew 1885-7-9 Humboldt Campbell's Comment
  HSC58133  Cerastium arvense Gilbert Muth 1979-8-1 12138 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC384903  Cerastium arvense Alice Eastwood; John Thomas Howell 1937-6-24 4862 Humboldt Road to Horse Mt. Comment
  HSC98768  Cerastium fontanum subsp. vulgare Cara Witte 2007-8-8 621 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC74273  Cerastium glomeratum M. A. Baker 1980-5-23 1381 Humboldt Near Buck Mtn. 1524 Comment
  HSC97943  Cerastium glomeratum Cara Witte 2007-6-28 384 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  UC249526  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC276489  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain 1524 Comment
  HSC56996  Chaenactis douglasii var. douglasii Overton, Butler 1979-7-24 9571 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC85700  Chamaecyparis lawsoniana Carl B. Wolf 1927-8-28 s.n. Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road, to Blue Lake. Comment
  HSC1193  Chamaecyparis lawsoniana J. C. Reppas 1963-3-2 50 Humboldt 820 Fickle Hill Rd. Comment
  RSA13571  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  UCD103644  Chamerion angustifolium subsp. circumvagum E. B. Alexander 1959-7-23 43 Humboldt California Forest and Range Experiment Station. 1 mile NW of Trinidad. Comment
  HSC102109  Cheilanthes gracillima M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1012 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 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
  HSC70561  Cheilanthes gracillima M. A. Baker 1980-7-19 3028 Humboldt Near Bret Hole. 1814 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  UC197915  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC91610  Chenopodium album E. Mackey 1987-8-10 Humboldt Patrick's Point State Park, by trail down to Agate Beach Comment
  UC55946  Chenopodium botrys J. P. Tracy 1902-8-10 1767 Humboldt Eel River Railroad Station Immediate vicinity of Eureka 0 Comment
  RSA44459  Chenopodium multifidum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  UC1197601  Chimaphila menziesii Joseph P. Tracy 1947-7-9 17855 Humboldt Horse Mt. 1432 Comment
  UC1409178  Chimaphila umbellata Robert F. Thorne and P. Everett 1965-8-5 35145 Humboldt King Mt. 1219 Comment
  RSA20793  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  RSA467019  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  CAS-BOT-BC36486  Chrysolepis chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  HSC8056  Chrysolepis chrysophylla Hilda W. Grinnell 1932-7-9 5 Humboldt Above Kerlin Creek, S. Fork Mtn. Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 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
  UC503101  Chrysolepis sempervirens Joseph P. Tracy Jul 16 1930-Jul 19 1930 8951 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  CAS-BOT-BC420345  Chrysosplenium glechomifolium Greg de Nevers 2001-4-19 12259 Humboldt Prarie Creek, Redwoods State Park 91 Comment
  JEPS46999  Cicendia quadrangularis Joseph P. Tracy 1935-5-25 13902 Humboldt Dobbyn Creek 152 Comment
  UC154047  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  BLMAR594  Circaea alpina subsp. pacifica Jennifer Wheeler 2010-7-28 594 Humboldt Lacks Creek, off Pine Ridge Road under shady old growth Douglas-fir 975 Comment
  HSC101544  Cirsium arvense J. P. Smith, J. O. Sawyer 2009-8-3 12645 Humboldt Roadside 103 Comment
  JEPS59109  Cirsium arvense W. L. Jepson 1902-8-3 2135 Humboldt Eel River, Ferndale Ferry 6 Comment
  UC1119169  Cirsium arvense H. S. Yates 1936-6-23 5868 Humboldt 3 mi ne Scotia; Rohnerville Quad. Comment
  UC1119170  Cirsium arvense H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quad. Comment
  CAS-BOT-BC284442  Cirsium brevistylum John Thomas Howell 1931-6-17 6720 Humboldt 8 miles n. of Arcata Comment
  HSC89523  Cirsium brevistylum M. Roantree 1985-6-11 88 Humboldt W side of Trinidad Head Comment
  HSC91921  Cirsium brevistylum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  CAS-BOT-BC285528  Cirsium occidentale var. candidissimum John Thomas Howell 1937-7-31 13713 Humboldt Trinity River Canyon 2 miles west of Trinity Co. line Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  HSC97210  Cirsium occidentale var. venustum Kiera A. Freeman, Heather J. Perry 2007-6-11 5 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC98565  Cirsium remotifolium var. odontolepis Cara Witte 2008-7-16 910 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC668207  Cirsium remotifolium var. rivulare Joseph P. Tracy 1938-7-5 15999 Humboldt 5 mi e of town Carlotta (open flat by old Strong's District School House) 45 Comment
  SBBG65940  Cirsium vulgare R. Hartwell 1938-8-3 103 Humboldt near Weott Comment
  SBBG4940  Clarkia amoena H. and M. Dearing 1939-6-24 3702 Humboldt near Dinsmore, E of Bridgeville Comment
  UC56304  Clarkia amoena Joseph Burtt Davy 1899-6-16 5562 Humboldt Alton Comment
  UC144097  Clarkia amoena Joseph P. Tracy 1907-7-4 2584 Humboldt just n of mouth Little River; Northern Coast Ranges 320 Comment
  CAS-BOT-BC160973  Clarkia amoena subsp. amoena L. R. Abrams 1918-6-16 7140 Humboldt Willow Creek Comment
  POM228379  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 671 Humboldt South side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  RSA226613  Clarkia amoena subsp. amoena Norman Dennis 1965-6-19 133 Humboldt 1/4 mile S and 1 mile E of the jct of Barry Ridge Road and the Eureka-Bridgeville country road, along Ashfield Ridge Road, 5 miles SE of Kneeland. 793 Comment
  CAS-BOT-BC164176  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  JEPS43694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt mountain slopes w of mouth South Fork Trinity River 609 Comment
  CAS-BOT-BC172503  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-9 2141 Humboldt Horse Mountain 1219 Comment
  UC1222851  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt n Harris (Fort Seward Ranch); Mail Ridge Comment
  CAS-BOT-BC172392  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy; C. C. Harris 1942-6-22 1261 Humboldt In a field, 7 miles north and 5 miles east of willow Creek 165 Comment
  JEPS1957 Image available Clarkia purpurea subsp. viminea W. L. Jepson 1902-8-13 1971 Humboldt near Redwood Creek; Hupa Road; Hupa Road, near Redwood Creek, Humboldt Co. Comment
  CAS-BOT-BC164823  Clarkia rhomboidea Doris K. Kildale 1928-6-24 5292 Humboldt Horse Mountain road near junction of Willow Creek road 853 Comment
  SEINET10492532  Clarkia rhomboidea Lincoln Constance 1934-6-15 Constance 880 Humboldt Summit of Grasshopper Peak, South Fork EeL River, Bull Creek Region. 3200 feet. 975 Comment
  UC275327  Claytonia exigua subsp. glauca Joseph P. Tracy 1923-4-15 6188 Humboldt Redwood Creek;at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  HSC17684  Claytonia perfoliata D. B. Bader 1963-2-17 36 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC33740  Claytonia perfoliata John Palmer 1975-5-24 360 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  UC198590  Claytonia rubra subsp. depressa Joseph P. Tracy 1917-5-30 4792 Humboldt Little River Beach; Northern Coast Ranges 6 Comment
  HSC97140  Claytonia rubra subsp. rubra K. Auker, R. Battleson 2007-6-4 2 Humboldt Cold Spring Camp, 7.4 mi. S of Hwy. 299 on FS Rd. NF1 1372 Comment
  HSC32285  Claytonia saxosa D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5623 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC443893  Claytonia sibirica Carl B. Wolf 1927-8-22 799 Humboldt Big Lagoon Comment
  HSC34155  Claytonia sibirica Linda M. Barker 1974-5-11 179 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC47503  Claytonia sibirica Sheila Logan 1978-4-10 30 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  HSC59580  Claytonia sibirica Rick Lundquist 1979-4-6 1 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  UC1052461  Claytonia sibirica H. E. Parks Apr 1933 1421 Humboldt Spruce Cove; Trinidad Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  UC672992  Claytonia sibirica Joseph P. Tracy 1936-8-24 15174 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC443888  Claytonia sibirica Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC73102  Claytonia sibirica J. Detzer 1977-4-8 2 Humboldt S end of Patricks Point State Park, 0.2 mi. W of Hwy. 101, 5 mi. N of Trinidad 61 Comment
  CAS-BOT-BC499387  Clintonia andrewsiana Henry M. Pollard 1936-4-1 s. n. Humboldt Unspecified, Steep Ravine Comment
  JEPS61594  Clintonia andrewsiana W. L. Jepson 1932-7-29 16444 Humboldt Van Duzen River, Grizzly Flat Van Duzen River; , Grizzly Flat Comment
  RSA377079  Clintonia andrewsiana Anstruther Davidson 1927-05 s.n. Humboldt [label data illegible[ Comment
  SEINET12047068  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -609 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  UC180199  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (about Humboldt Bay, at the Cumens Claim); Northern Coast Region, Humboldt Bay 304 Comment
  HSC58065  Clintonia uniflora G. L. Clifton, Griswold 1979-8-1 11943 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1197660  Clintonia uniflora Joseph P. Tracy 1932-7-16 10624 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC1174489  Collinsia grandiflora Volney Rattan 1903-1 1878 Humboldt Comment
  UC169092  Collinsia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5673 Humboldt ridge w Hoopa Valley (Hoopa Mt summit); Hoopa Mtn, North Coast Ranges Comment
  HSC44767  Collinsia greenei Thomas W. Nelson, Jane P. Nelson 1977-6-19 3457 Humboldt W side of Middle Peak of Mt. Lassic group 1768 Comment
  SEINET12268979  Collinsia linearis J. P. Tracy 1950-1 18969 Humboldt Happy Camp Mountain, Trinity Summit on ridge 2 mi E of Groves Prairie 1524 Comment
  JEPS26114  Collinsia parviflora Peter H. Raven with R. Snow 1958-7-20 13634 Humboldt 2.8 mi s jct of Titlow Hill and Friday Ridge rds (near Grouse Mtn) Comment
  UC1196761  Collinsia parviflora Joseph P. Tracy 1913-6-14 4122 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC48992  Collinsia rattanii M. A. Baker 1979-5-23 757 Humboldt Comment
  RSA125053  Collinsia rattanii Peter H. Raven, R. Snow 1958-7-20 13633 Humboldt 2.8 miles south of junction of Titlow Hill and Friday Ridge roads, near Grouse Mountain. Comment
  UC55956  Collinsia rattanii J. P. Tracy 1902-6-3 1665 Humboldt Ridge between Eel River and South Fork, near Hubbard's Station Eel River; Ridge between Eel River and South Fork 609 Comment
  HSC76564  Collomia grandiflora Denis Kearns 1981-7-22 311 Humboldt Near Whiteys Peak 1487 Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew Comment
  UC1197862  Collomia tinctoria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8965 Humboldt openings in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC133660  Collomia tracyi Joseph P. Tracy 1908-6 2837 Humboldt nw talus slope Northern Coast Ranges, Buck Mountain 914 Comment
  CAS-BOT-BC180241  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 1867 Humboldt Willow Brook, rocky terrace on Trinity River 152 Comment
  UCR275122  Conium maculatum Charity A. Hartshorn 2016-4-24 19 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  HSC100900  Coptis occidentalis Carl C. Marshall Apr 1887 374 Humboldt Supply Creek. 610 Comment
  CAS-BOT-BC133715  Corallorhiza Doris Kildale Gillespie 1931-6-7 10659 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  SBBG1153  Corallorhiza mertensiana H. and M. Dearing 1939-7-25 3709 Humboldt road to Blakes Lookout 1524 Comment
  UC666980  Corallorhiza mertensiana Joseph P. Tracy 1930-7-17 9017 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC16585  Corallorhiza striata D. E. Anderson 1965-5-15 3684 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC30139  Corallorhiza striata A. Montalvo, J. D. Ackerman 1974-4-14 171 Humboldt 100 m from intersection of Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  HSC63191  Corallorhiza striata M. A. Baker 1979-6-28 940 Humboldt Comment
  UC1196463  Corallorhiza striata Joseph P. Tracy 1926-5-15 7497 Humboldt Ashfield Butte Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR311  Cordylanthus maritimus subsp. palustris Jennifer Anthony-Wheeler 2002-7-1 311 Humboldt South Spit 6 Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  UC1199416  Corethrogyne filaginifolia J. P. Tracy 1900-7-4 872 Humboldt opp. Eureka; Samoa Comment
  CAS-BOT-BC212017  Cornus nuttallii Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  HSC6415  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt S Fork Eel River, Bull Creek, 0.5 mi. W of mouth. Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  HSC6421  Cornus sessilis D. E. Anderson 1963-3-1 2368 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  HSC26855  Coronopus didymus Thomas W. Nelson 1971-12-5 315 Humboldt 3300 block of D St. in Eureka Comment
  UC1225941  Corylus californica Joseph P. Tracy 1946-8-25 17641 Humboldt Table Bluff, on Hookton road 9 Comment
  RSA173975  Corylus cornuta var. californica R. F. Thorne 1957-9-2 19003 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SD117460  Cotoneaster franchetii Robert F. Thorne 1974-7-29 45072 Humboldt Samoa Dunes Comment
  CAS-BOT-BC453358  Cotoneaster lacteus Arthur Lee Jacobson 2007-8-13 s.n. Humboldt North of Mill creek and W of Stagecoach Road, southern part of Trinidad Dtate Beach, (North coast, NCO) 50 Comment
  UC1223035  Cotula australis J. P. Tracy 1943-10-8 17447 Humboldt Eureka Comment
  CDA4466  Crepis capillaris T. R. Haig 1960-6-2 Humboldt 1mile west of Rio Dell, Humbolt Co., CA. 0 Comment
  CAS-BOT-BC290848  Crepis pleurocarpa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC62776  Crocus speciosus M. Dean Griswold Jr. 1979-4-28 34 Humboldt W side of old Hwy. 101 Comment
  HSC40818  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2851 Humboldt Along road to Goat Hill at spring. 1646 Comment
  HSC57201  Cryptantha affinis Griswold, Butler 1979-7-10 7107 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  POM174073  Cryptantha flaccida Joseph P. Tracy 1918-7-6 5047 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC3576  Cryptantha leiocarpa J. W. Johnson 1962-5-27 1381 Humboldt Arcata; at N end near the foredunes, Christensen Farm, Samoa Peninsula Comment
  HSC73699  Cuscuta californica M. A. Baker 1980-7-15 2970 Humboldt Near Whiting Ridge. 1341 Comment
  HSC98017  Cuscuta californica var. californica Cara Witte 2007-7-5 422 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  RSA249518  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-7 35206 Humboldt Samoa Peninsula. 0 Comment
  JEPS93172  Cuscuta salina var. major Margriet Wetherwax and Kevin Downing 1993-8-9 2459 Humboldt on E side of Humboldt Bay, just N of Eureka; S side of Eureka Slough, near Bayside Road and Myrtle. Marsh at end of the road to church 5 Comment
  CAS-BOT-BC190372  Cynosurus cristatus Malcom A. Nobs; S. Galen Smith 1949-8-3 1195 Humboldt At the southern outskirts of Eureka. Comment
  HSC90700  Cynosurus cristatus Gail Newton 1982-6-10 3603 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1040573  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 mi nw Petrolia 152 Comment
  HSC35349  Cynosurus echinatus J. D. Ackerman, A. M. Montalvo 1975-6-22 482 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  HSC9520  Cynosurus echinatus True Hoyle 1967-7-24 29067 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  UCD60170  Cynosurus echinatus P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  HSC7208  Cyperus acuminatus John H. Kynoch 1966-9-23 406 Humboldt Near Trinity River and Willow Creek 142 Comment
  RSA183563  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake. Comment
  RSA53852  Cyperus eragrostis Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley Place, near Orleans. Comment
  UC1103639  Cyperus eragrostis Joseph P. Tracy 1927-8-7 8309 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 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
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  SEINET3926894  Dactylis glomerata Thomas Nelson, Jane P. Nelson 1976-7-26 3022 Humboldt Trinity-Humboldt Co. line. growing on road cut of 1S07 on serpentine west of Black Lassic.; 0 1615 Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  HSC40398  Danthonia californica Thomas W. Nelson 1976-7-9 3008 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  UC1152021  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity Comment
  UCD60503  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  UCD60525  Danthonia californica var. americana R. Tofsrud 1948-9-3 s.n. Humboldt Border of Clear Lake, on road from Horse Mt. to Grouse Mt. 1371 Comment
  UCD60692  Danthonia californica var. americana A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3474 Humboldt 4 miles north of Bridgeville. Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  RSA10088  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  UC1198874  Darmera peltata Joseph P. Tracy 1935-9-29 14755 Humboldt Blue Slide Van Duzen River (on the Van Duzen River) 91 Comment
  UC183570  Darmera peltata Joseph P. Tracy 1913-6-11 4093 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC33767  Daucus pusillus Ron Rahlston 1975-5-24 77 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  UC1197346  Daucus pusillus Joseph P. Tracy 1927-6-26 8211 Humboldt Stone Lagoon sand beach 6 Comment
  HSC96618  Delairea odorata Gordon Leppig 2005-4-8 2204 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  UC1196324  Delphinium andersonii Joseph P. Tracy 1935-7-24 14190 Humboldt rocky exposed places near Ranger Station; Trinity Summit 1828 Comment
  UC160909  Delphinium decorum subsp. decorum J. P. Tracy 1910-4-17 3119 Humboldt bluff back of Bucksport; immediate vicinity of Eureka 0 Comment
  HSC90041  Delphinium decorum subsp. tracyi Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 60 Humboldt Titlow Rd. 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  HSC97592  Delphinium decorum subsp. tracyi Steven Lee 2004-4-26 29 Humboldt Horse Mtn., 5 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  RSA32277  Delphinium decorum subsp. tracyi H. C. Cantelow 1941-4-26 s.n. Humboldt 12 miles SW of Ferndale on Cape Town and Cape Mendocino 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
  HSC98842  Delphinium nudicaule Cara Witte 2007-5-23 107 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC9951  Delphinium nudicaule Doris K. Kildale 1927-3-20 2928 Humboldt Philipsville, south fork of Eel River Comment
  CAS-BOT-BC9957  Delphinium nudicaule Duart V. Brown 1947-4-2 28 Humboldt Near Sweed Creek, Trinity River Comment
  UC184715  Delphinium nudicaule Joseph P. Tracy 1913-6-14 4128 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC44525  Delphinium nuttallianum Brad Klipfel 1973-7-1 133 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS23300  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UCD61253  Deschampsia cespitosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  CAS-BOT-BC194291  Deschampsia cespitosa subsp. cespitosa Doris K. Kildale 1928-7-29 5922 Humboldt Bear River at Capetown Comment
  CAS-BOT-BC194296  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1904-7-31 2129 Humboldt Eureka 60 Comment
  UC183580  Deschampsia danthonioides Joseph P. Tracy 1912-7-25 3832 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC187272  Deschampsia danthonioides Joseph P. Tracy 1911-7-7 3379 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  UCD62500  Deschampsia danthonioides A. H. Murphy 1951-6-1 56 Humboldt Near Mad River, 1 mile E of Low Gap. Comment
  POM207196  Deschampsia elongata Jos Burtt Davy 1899-6-12 5476 Humboldt Elk Prairie Comment
  POM210034  Deschampsia elongata H. E. Parks 1931-05 3646 a Humboldt Big Lagoon Comment
  SBBG59443  Deschampsia elongata H. E. Parks -May-1931 3646 a Humboldt Big Lagoon Comment
  SEINET200649 Image available Deschampsia elongata J. P. Tracy 1912-6-9 3684 Humboldt Alton 30 Comment
  UC534987  Deschampsia elongata H. E. Parks May 1931 3646 a Humboldt Big Lagoon Comment
  UC552755  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UC76979  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5509 Humboldt near Camp Grant Comment
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May 17 2012
  UCD63577  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3621 Humboldt 4 miles north of Bridgeville. Comment
  HSC56461  Dianthus armeria Griswold, Butler 1979-7-12 7249 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC8361  Dicentra formosa D. K. Smith 1968-3-3 11 Humboldt West End Rd., 3 mi. from Hwy. 299 Comment
  RSA0056407  Dicentra formosa James R. Shevock 1971-5-29 1139 Humboldt Trinity Hwy, 229. 243 Comment
  CAS-BOT-BC402413  Dicentra formosa subsp. formosa J. Cromwell; A. Thoele; J. Schneider 1994-5-6 046 Humboldt Intersection of Hwy. 299 and Redwood Valley Rd. 609 Comment
  POM126098  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt At Eureka 0 Comment
  RSA254753  Dichanthelium acuminatum var. fasciculatum Thomas W. Nelson 1973-9-3 1120 Humboldt McKeown Ranch north of Dinsmore Comment
  UC666914  Dichelostemma capitatum Joseph P. Tracy 1927-5-22 8075 Humboldt Kneeland Prairie 762 Comment
  JEPS64151  Dichelostemma capitatum Milo S. Baker 137 Humboldt South Fork Yager Creek Comment
  HSC33055  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  POM161059  Dichelostemma capitatum subsp. capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley. 701 Comment
  HSC12535  Dichelostemma congestum J. Allen DeCou 1899-1 Humboldt Willow Creek Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  HSC74700  Dichelostemma ida-maia Gail Newton 1981-8-5 2371 Humboldt Near Bug Creek, E Fork 914 Comment
  HSC98727  Dichelostemma ida-maia Cara Witte 2007-7-20 555 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  SEINET200696  Dichelostemma ida-maia J. P. Tracy 1901-6-23 1184 Humboldt Immediate vicinity of Eureka near Ryans Slough Hill 0 Comment
  RSA167431  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy, Davis Agriculture College 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  SD42568  Dichelostemma ida-maia Carl B. Wolf 1937-8-11 9146 Humboldt North Coast Range, 3 miles west of Little Van Duzen River, at summit of grade - Dinsmores to Bridgeville. 762 Comment
  UC175926  Dichelostemma ida-maia Joseph P. Tracy 1913-6-20 4227 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC30352  Digitalis purpurea E. A. Wise 1 Humboldt Base of Cypress Hall Dormitory, Humboldt State University Comment
  UCD64093  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC150342  Diplacus aurantiacus C. L. Hitchcock; J. S. Martin 1939-7-14 5439 Humboldt At Shelter Cove Comment
  CAS-BOT-BC153325  Diplacus layneae Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  POM277211  Disporum hookeri var. hookeri Lyman Benson 1929-7-16 1840 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  POM277205  Disporum smithii Lyman Benson 1929-6-12 1752 Humboldt Weott Ranger St[ation]; S Fork Eel River. Comment
  RSA367637  Disporum smithii Anstruther Davidson 1927-5-27 114 Humboldt Redwood Hwy, Orick. Comment
  CAS-BOT-BC208661  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  HSC9637  Distichlis spicata J. Wendell Howe 1934-7-19 1311 Humboldt Edge of Humboldt Bay Comment
  SEINET201055 Image available Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  UC562751  Dodecatheon alpinum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8930 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 1676 Comment
  HSC56167  Dodecatheon jeffreyi G. L. Clifton, Griswold 1979-8-1 12056 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC3848  Downingia elegans J. P. Tracy 1927-7-17 8270 Humboldt Three Cabins: lower W foothills of Chaparral Mtn. 457 Comment
  UC673096  Downingia elegans Joseph P. Tracy 1940-7-7 16673 Humboldt Grouse Mt. 1554 Comment
  POM256487  Downingia elegans var. corymbosa Joseph P. Tracy 1930-6-15 8739 Humboldt Larrabee Creek, near Bosworth's; North Coast Ranges. 457 Comment
  HSC44732  Drosera rotundifolia Maralyn O'Meara 1971-10-25 55 Humboldt S side of Big Lagoon Comment
  RSA0011668  Drosera rotundifolia C. B. Wolf 1934-7-2 5897 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC63033  Drymocallis glandulosa J. P. Smith, J. O. Sawyer 1973-5-12 6668 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  UC811824  Dryopteris arguta George Neville Jones 1936-3-22 8672 Humboldt near Garberville Comment
  CAS-BOT-BC71054  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt Crokscrew Tree, 8 miles north of Orick Comment
  CAS-BOT-BC427987  Dudleya caespitosa Carl B. Wolf 1927-8-29 1222 Humboldt Coast so. of Cape Mendocino at Devils Gate Comment
  HSC44817  Dulichium arundinaceum Bruce G. Marcot 1977-7-21 Humboldt Big Lake Comment
  OBI22607  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie Comment
  RSA152345  Eleocharis acicularis var. acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow s Prairie. 61 Comment
  CHSC68427  Eleocharis macrostachya L. P. Janeway 1983-9-24 701 Humboldt 10-30 ft from water line of Big Lagoon, near southwest corner of the county campground. 3 Comment
  HSC7309  Eleocharis macrostachya Paul Shields 1955-10-7 Humboldt Essex Pond near Fieldbrook Comment
  UC1103666  Eleocharis macrostachya Joseph P. Tracy 1935-5-25 13849 Humboldt Fort Seward 106 Comment
  UCD49784  Eleocharis macrostachya Linda M. Barker 1976-6-22 1621 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  UC303024  Eleocharis parishii Joseph P. Tracy 1926-8-12 7767 Humboldt near S fork Trinity River Valley; Northern Coast Ranges 182 Comment
  HSC98801  Elymus elongatus Cara Witte 2007-7-12 519 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  UCD61426  Elymus elymoides A. H. Murphy 1951-6-25 75 Humboldt About 1 mile west of Snow Camp Mtn. ca. 8 miles ene of Kneeland. Comment
  UC552794  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-23 14134 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  UC1103204  Elymus glaucus Joseph P. Tracy 1908-6 2856 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC38141  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5878 Humboldt Martin's Ferry Comment
  HSC102145  Elymus glaucus subsp. glaucus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1052 Humboldt Patterson Meadows 1566 Comment
  UCD62413  Elymus glaucus subsp. virescens P. B. Kennedy 1928-7-16 Humboldt Near Trinidad. Comment
  SEINET4683795  Elymus mollis D. A. Haskell 1966-4-23 26 Humboldt Coastal strand sand dunes near the town of Sa-; 0 Comment
  HSC98925  Elymus multisetus Cara Witte 2008-7-30 969 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  SEINET200980  Elytrigia repens J. P. Tracy 1948-7-24 18077 Humboldt Eureka 30 Comment
  HSC33094  Empetrum nigrum J. P. Smith 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just N of College Cove Comment
  UC144089  Epilobium brachycarpum Joseph P. Tracy July 1908 2895 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  UC668305  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  UC146137  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-7-4 3004 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. Comment
  UC562508  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1935-8-25 14228 Humboldt Corral Prairie Trinity Summit (in meadow) 1584 Comment
  RSA755158  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. 3 Comment
  JEPS38204  Epilobium densiflorum Joseph P. Tracy 1917-9-3 4852 Humboldt Jones Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  UC505124  Epilobium densiflorum Joseph P. Tracy 1932-10-12 10872 Humboldt Miranda' along watercourse Northern Coast Ranges, South Fork of Eel River 121 Comment
  HSC98093  Epilobium glaberrimum subsp. fastigiatum Cara Witte 2007-7-11 477 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  POM89781  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit. 1829 Comment
  RSA181877  Epilobium hallianum Joseph P. Tracy 1931-6-28 9589 Humboldt Northern Coast Ranges: Buck Mountain, lower foothills of its northwest slope 762 Comment
  HSC72791  Epilobium minutum M. A. Baker 1980-6-16 1933 Humboldt Near Monks Camp. 1097 Comment
  HSC71824  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5938 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  RSA249432  Epilobium minutum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5598 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments
Jun 21 2008
  CAS-BOT-BC165947  Epilobium septentrionale J. Clausen 1932-9-18 685 Humboldt 2 miles southeast of Petrolia at the bridge across Mattolle River Comment
  UC1198497  Epilobium torreyi Joseph P. Tracy 1934-7-9 13334 Humboldt 5 mi s Harris (on ridge) 762 Comment
  SEINET12194289  Epilobium watsonii var. franciscanum F. H. Utech 1986-1 86 -411 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  JEPS64369  Epipactis gigantea Lincoln Constance 1934-6-12 858 Humboldt Bull Cr. road and N. bank of S. Fork Eel River; South Fork Eel River, Bull Creek region, Dyerville Comment
  HSC44045  Equisetum arvense Thomas W. Nelson, Jane Nelson 1977-7-1 3551 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  UC667934  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt near Grizzly Creek Van Duzen River 91 Comment
  RSA53855  Equisetum hyemale var. affine Henry M. Pollard 1946-8-31 s.n. Humboldt New Wilson Creek, Orleans Mt. Comment
  HSC98903  Equisetum laevigatum Cara Witte 2007-7-25 580 Humboldt Forest Service Road 5N10. Approximately 2 miles south from intersection with Forest Service Road 5N41. 1290 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
  CAS-BOT-BC57790  Equisetum telmateia Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway. Comment
  HSC76320  Equisetum telmateia subsp. braunii Teresa Prendusi 1981-7-23 348 Humboldt Near Black Mtn. 890 Comment
  HSC95578  Equisetum telmateia subsp. braunii Andrea Pickart 2002-3-31 23 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 Comment
  UCR52249  Erechtites argutus H. E. Parks 1937-1 24033 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  HSC37908  Erechtites glomeratus Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC5491  Erechtites glomeratus H. E. Parks, S. T. Parks Jul 1937 24033 Humboldt Trinidad; Spruce Cove 64 Comment
  HSC89505  Erechtites glomeratus M. Roantree 1985-6-10 83 Humboldt East side of Trinidad Head Comment
  RSA638987  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1965-8-8 35239 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  JEPS52495  Eremocarpus setiger Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  CAS-BOT-BC58928  Erica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka Comment
  CAS-BOT-BC293489  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  UCSB30605  Erigeron canadensis Edwards, David 1974-7-30 Humboldt In NW corner of Uniontown Shopping Center at the corner of 'F' St. and 7th St., Arcata 18 Comment
  CAS-BOT-BC300681  Erigeron foliosus var. mendocinus Alice Eastwood 1921-7-21 10660 Humboldt Vanduzen [Van Duzen] River Comment
  UC581721  Erigeron foliosus var. mendocinus Joseph P. Tracy 1931-5-17 9433 Humboldt near Willow Creek; Trinity River 152 Comment
  HSC29848  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Sand dunes at the foot of Murray Rd. McKinleyville Comment
  RSA254794  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  BLMAR715  Erigeron glaucus Jennifer Anthony-Wheeler 1995-4-4 715 Humboldt King range, growing on beach dunes S of 1st arch fence exclosure 6 Comment
  CAS-BOT-BC214585  Erigeron philadelphicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC214589  Erigeron philadelphicus Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Bull Creek Comment
  HSC100373  Erigeron robustior D. Decker 2010-7-28 Humboldt Dinsmore, off 1N08 on Buck Mtn. 1353 Comment
  JEPS867  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges, Klamath River 243 Comment
  CAS-BOT-BC224260  Eriodictyon californicum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville Comment
  RSA134150  Eriodictyon californicum Percy C. Everett, E. K. Balls 1959-10-24 23953 Humboldt 2.8 miles southwest from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 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
  UC183632  Eriogonum compositum var. compositum Joseph P. Tracy 1913-6-22 4262 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Van Duzen River valley 762 Comment
  RSA89772  Eriogonum latifolium P. A. Munz 1954-7-25 19870 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UC203954  Eriogonum latifolium Joseph P. Tracy 1918-7-1 4974 Humboldt 3 mi s Point of the Cape; Cape Mendocino 3 Comment
  SEINET195334  Eriogonum lobbii H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mtn 1524 Comment
  CAS-BOT-BC259533  Eriogonum luteolum var. luteolum L. R. Abrams 1916-7-11 6069 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC479200  Eriogonum luteolum var. luteolum Marcus E. Jones, A. M. 1931-7-16 28862 Humboldt Junction e Arcata Comment
  UC1198101  Eriogonum luteolum var. luteolum Joseph P. Tracy 1919-9-13 5192 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  RSA66020  Eriogonum nudum var. auriculatum F. W. Peirson 1923-7-10 4206 Humboldt Garberville. Comment
  HSC47965  Eriogonum nudum var. nudum Brad Klipfel 1974-8-2 542 Humboldt Horse Mtn. Comment
  UC198588  Eriogonum nudum var. nudum Joseph P. Tracy 1916-6-20 4729 Humboldt Dobbyn Creek 182 Comment
  HSC43080  Eriogonum nudum var. nudum Brad Klipfel 1973-7-31 233 Humboldt N Trinity Mtn. 1860 Comment
  RSA46699  Eriogonum nudum var. nudum Doris K. Kildale 1927-6-25 3582 Humboldt Ettersburg Comment
  HSC32552  Eriogonum nudum var. oblongifolium Thomas W. Nelson 1973-9-2 1121 Humboldt McKeown Ranch N of Dinsmore Comment
  CDA22681  Eriogonum umbellatum var. nelsoniorum L. P. Janeway, B. Castro 1996-8-4 5060 Humboldt High North Coast Ranges; Along Titlow Hill Road (Road #1) about 0.3 mile west of the spur road to top of Horse Mountain. Comment
  SEINET245667  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer 1372 Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  HSC100431  Eriophyllum caespitosum Carl C. Marshall Sep 1887 439 Humboldt S side of Table Bluff. Comment
  UC1223126  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1944-7-3 17480 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC180202  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1914-7-5 4572 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  UC165896  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 1/2 Humboldt hillslopes at w side of river near Willow Creek; Northern Coast Ranges, Trinity River 304 Comment
  CAS-BOT-BC301685  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC301689  Eriophyllum lanatum var. lanceolatum Lincoln Constance; Reed C. Rollins 1942-5-12 2890 Humboldt Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec 121 Comment
  HSC5585  Eriophyllum lanatum var. lanceolatum Lincoln Constance, R. C. Rollins 1942-5-12 2890 Humboldt Klamath River, 12 mi. N of Weitchpec 122 Comment
  RSA12526  Eriophyllum lanatum var. lanceolatum C. B. Wolf 1934-7-3 5910 Humboldt 20 miles from Orick on Weitchpec Road 152 Comment
  POM288346  Eriophyllum staechadifolium Lyman Benson 1929-7-19 1857 Humboldt Mouth of Matole River. Comment
  RSA390945  Erodium botrys Unspecified 1932-7-14 16269 Humboldt Near Garberville Comment
  UC1198966  Erodium brachycarpum Joseph P. Tracy 1926-3-14 7387 Humboldt Yager Creek Northern Coast Ranges, Carlotta 60 Comment
  HSC8496  Erodium cicutarium D. B. Bader 1963-3-1 30 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  UC17090  Erodium cicutarium Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell Springs Comment
  HSC100485  Erodium moschatum Carl C. Marshall May 1886 197 Humboldt Yard's etc. Comment
  CHSC31281  Erysimum menziesii Mark Stopher 1980-4-2 46 Humboldt On sand dunes of the Samoa peninsula at Humboldt Bay. 4 Comment
  RSA0008583  Erysimum menziesii Vernon H. Oswald 2000-4-3 9911 Humboldt Near the junction of New Navy Base Road and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  SEINET5342590  Erysimum menziesii J. Tracy 1901-4-14 1019 Humboldt Humboldt Bay. Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  HSC36498  Erythronium californicum Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1893 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC104324  Erythronium californicum James Regan, Humboldt Redwood Co., LLC 2007-4-30 22 Humboldt Kneeland, near Kneeland Airport 854 Comment
  HSC15488  Erythronium citrinum var. citrinum E. C. Murczek 1964-4-4 29 Humboldt 8 mi. N of Hoopa Comment
  UC1197642  Erythronium revolutum Joseph P. Tracy 1918-5-28 4938 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC104347  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-7 20 Humboldt Kneeland 854 Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  UC1196292  Eschscholzia californica Joseph P. Tracy 1943-11-28 17459 Humboldt Alton to Fortuna; Eel River 15 Comment
  UC146099  Eschscholzia californica Joseph P. Tracy 1904-7-4 2118 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD170582  Eschscholzia californica subsp. californica Gordon Leppig 1998-5-8 744 Humboldt Arcata, empty lot corner of Sunset and Jay St. 24 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC59103  Eucalyptus globulus Clark L. Miller 1979-5-24 9157 Humboldt Along Hwy. 101 ca. 100 yards from Murray Rd. off-ramp. Comment
  RSA0024550  Eucephalus ledophyllus var. covillei Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit. 1890 Comment
  JEPS20466  Euchiton gymnocephalus Joseph P. Tracy 1923-4-1 6175 Humboldt near Blue Lake 304 Comment
  UC1223111  Euchiton sphaericus Joseph P. Tracy 1947-9-28 17933 Humboldt Park's place Trinidad 3 Comment
  HSC100666  Eunanus kelloggii Carl C. Marshall May 1887 417 Humboldt Spruce Grove region. Comment
  CAS-BOT-BC206804  Euonymus occidentalis John Thomas Howell 1936-8-29 12887 Humboldt Eel River 16 miles N of Garberville Comment
  UC1199005  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1906-6-10 2473 Humboldt headwaters of Freshwater Creek near Kneeland Prairie; Northern Coast Ranges, Freshwater Creek 457 Comment
  UC164833  Euphorbia crenulata Joseph P. Tracy 1909-8-29 3083 Humboldt top of Humboldt Hill Northern Coast Region, Humboldt Bay Region (Humboldt Bay Region) 0 Comment
  CDA4829  Euphorbia davidii E. C. Whitney 1963-8-5 s.n. Humboldt In ballast of N.W.P. R.R. tracks, Scotia. 0 Comment
  HSC12567  Euphorbia peplus D. La Conte 1970-6-15 6 Humboldt Comment
  UC1198982  Euphorbia spathulata Joseph P. Tracy 1947-5-10 17678 Humboldt near Briceland 457 Comment
  UC1199301  Eurybia radulina Joseph P. Tracy 1930-9-14 9188 Humboldt Kneeland Prairie 762 Comment
  OBI5245  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  HSC98591  Festuca californica var. californica Cara Witte 2007-6-14 281 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 mile north of White Oak Opening. 1258 Comment
  RSA10110  Festuca californica var. californica Joseph P. Tracy 9044 Humboldt South Fork Mountain; open glades along summit near Blake Lookout. 1738 Comment
  RSA10078  Festuca elmeri Joseph P. Tracy 1927-5-8 7962 Humboldt Phillipsville open oak groves facing South Fork of Eel River. 122 Comment
  UC1103729  Festuca idahoensis Joseph P. Tracy 1926-6-6 7569 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC73746  Festuca occidentalis M. A. Baker 1980-7-15 2950 Humboldt Near Whiting Ridge. 1341 Comment
  UCD66133  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3473 Humboldt 4 miles north of Bridgeville. Comment
  UC1145209  Festuca roemeri Joseph P. Tracy 1950-6-15 18803 Humboldt 7 mi n Harris; Mail Ridge 1036 Comment
  UCSC000038  Festuca rubra H. S. Yates 1936-6-23 5863 Humboldt 1 mile W of Bayside - Eureka 0 Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UCD66439  Festuca subulata P. B. Kennedy 1923-8-3 Humboldt South of Scotia by road through redwoods off highway. Comment
  UCD66493  Festuca subuliflora A. A. Beetle; G. L. Stebbins Jr 1942-6-1 3451 Humboldt 4 miles north of Orleans on road to Somesbar, wooded banks of Klamath River. Comment
  UC179919  Festuca viridula Joseph P. Tracy 1912-7-7 3741 Humboldt Eureka Northern Coast Region 0 Comment
  HSC47484  Fragaria chiloensis Sheila Logan 1978-4-7 1 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC18621  Fragaria chiloensis S. J. Hawks 1965-2-12 2 Humboldt N end of Eureka Airport Comment
  HSC41331  Frangula californica Brad Klipfel 1974-9-17 572 Humboldt Horse Mountain Comment
  HSC41295  Frangula californica subsp. occidentalis Brad Klipfel 1974-7-27 495 Humboldt Horse Mtn. Comment
  HSC72613  Frangula californica subsp. occidentalis J. P. Smith 1977-7-3 9261 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC18419  Frangula purshiana T. M. Mingo May 1965 Humboldt 2 mi N of Trinidad Comment
  HSC39943  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt 3 mi. W of Arcata. Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  HSC65858  Fritillaria affinis Gail Newton 1980-6-28 710 Humboldt Near Mad River Butte. 1536 Comment
  CAS-BOT-BC130445  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  RSA176509  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  HSC71806  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson 1980-6-27 5949 Humboldt Along low ridge NE of small vernal pond at N base of Red Lassic 1677 Comment
  HSC100211  Fuchsia magellanica J. P. Smith 2009-7-28 12641 Humboldt Arcata; Along St. Louis Road. 16 Comment
  UC602525  Galium ambiguum var. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  CHSC19947  Galium aparine M. S. Taylor 1975-3-25 427 Humboldt Between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  HSC45634  Galium aparine Diane L. Reed 1978-4-22 30 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC57329  Galium bolanderi Overton, Butler 1979-7-25 9822 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC35335  Galium bolanderi Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC1222494  Galium californicum subsp. californicum Joseph P. Tracy 1950-6-15 18827 Humboldt 7 mi n Harris; Mail Ridge, Hubbard's Station Comment
  UC416654  Galium parisiense Harley P. Chandler June, 1901 1305 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC90797  Galium parisiense W. L. Jepson 1936-8-12 17882 Humboldt Miranda, S Fork of the Eel River Comment
  UC602522  Galium porrigens Joseph P. Tracy 1925-7-12 7188 Humboldt near South Fork; Trinity River Valley 182 Comment
  BLMAR418  Galium trifidum subsp. columbianum Jennifer Wheeler August, 2007 418 Humboldt South Spit, growing on East side near bay 9 Comment
  JEPS6535  Galium triflorum W. L. Jepson 1932-7-27 16423 Humboldt Bull Creek 106 Comment
  UC602538  Galium triflorum Joseph P. Tracy 1932-7-17 10654 Humboldt woods near Corral Prairie; Trinity Summit 1584 Comment
  UC204756  Gamochaeta ustulata Joseph P. Tracy 1918-7-5 5028 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC76358  Garrya buxifolia Denis Kearns 1981-6-24 22 Humboldt Near Cedar Camp 1219 Comment
  CHSC19512  Garrya elliptica J. F. Knezevich 1968-1-2 Humboldt Near Patrick's Point State Park on Highway 101. Comment
  HSC39953  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt 3 mi. W of Arcata Comment
  UC634769  Garrya elliptica H. L. Mason 1932-7-21 7105 Humboldt Big Lagoon Comment
  HSC40855  Garrya fremontii Thomas W. Nelson 1976-7-9 2992 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC8404  Garrya fremontii C. B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Rd. to Blue Lake, 9 mi. from Willow Creek, 2 mi. below grade summit Comment
  UC1122677  Garrya fremontii A. E. Wieslander 1931-5-17 196 Humboldt Bald Hills; Hoopa Quad. Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC58917  Gaultheria shallon Doris K. Kildale; L. B. Kildale 1930-4-12 9568 Humboldt Big Lagoon Flat Comment
  HSC73457  Gaultheria shallon Grunert 38 Humboldt Jolly Giant Creek, Arcata city limit, on Jolly Giant Rd. near HSU Comment
  RSA18144  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mile south of Orick. Comment
  RSA309623  Gaultheria shallon W. Wisura 1983-9-2 3930 Humboldt 6 mi W of Willow Creek, at East Fork campground, along Hwy. 299 Comment
  RSA46828  Gaultheria shallon Doris K. Kildale 1926-1-3 1465 Humboldt Big Lagoon road near Trinidad. Comment
  SDSU2867  Gaultheria shallon D. F. Howe 1961-8-1 3106 Humboldt 6 miles north of Trinidad on #101. Comment
  SEINET2028836 Image available Gaultheria shallon Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15251 Humboldt 2 miles north of Fortuna Comment
  HSC99578  Gayophytum diffusum subsp. parviflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 243 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
  POM247154  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC562499  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13047 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC198620  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1917-9-2 4850 Humboldt Grouse Mt. Northern Coast Ranges (slopes high up) 1524 Comment
  UC1196959  Gayophytum humile Joseph P. Tracy 1926-6-27 7686 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC55166  Gayophytum ramosissimum Gilbert Muth 1979-8-1 12157 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC16406  Gayophytum ramosissimum J. P. Tracy 1933-7-26 12919 Humboldt Grouse Mtn. 1524 Comment
  UC153982  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2140 Humboldt immediate vicinity Eureka 0 Comment
  HSC58091  Gentiana plurisetosa G. L. Clifton, Griswold 1979-8-1 12004 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1198953  Geranium core-core J. P. Tracy 1911-6-11 3239 Humboldt Trinidad 91 Comment
  HSC8645  Geranium dissectum R. T. Forester 1963-4-30 16 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC8655  Geranium molle Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC154213  Geum macrophyllum var. macrophyllum J. P. Tracy 1901-6-23 1171 Humboldt immediate vicinity of Eureka 0 Comment
  HSC54201  Gilia capitata Gilbert Muth 1979-7-12 7238 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  CAS-BOT-BC226151  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3295 Humboldt Mattole River Valley Comment
  CAS-BOT-BC226156  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3168 Humboldt Back of Cape Mendocino Comment
  UC1197924  Gilia capitata subsp. pacifica Joseph P. Tracy 1949-10-29 18595 Humboldt Eureka 30 Comment
  UC133647  Gilia capitata subsp. pacifica Joseph P. Tracy 1908-8-1 3068 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC100592  Gilia grandiflora Carl C. Marshall Jun 1886 314 Humboldt Vicinity of Hoopa. Comment
  BLMAR606  Gilia millefoliata Jennifer Wheeler 2011-4-1 606 Humboldt King range, growing throughtout the Mattole beach dune area Comment
  HSC34612  Gilia millefoliata A. Montalvo 1975-5-24 274 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  SEINET10464622  Githopsis specularioides Tracy 1913-6-19 TRACY 4207 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC14203  Glechoma hederacea A. H. Teshima 1963-4-28 26 Humboldt Roadside in porous soil near the Moonstone Beach area Comment
  HSC10076  Glyceria X occidentalis J. A. Waller 1965-5-2 32 Humboldt Mud flats off of Samoa Comment
  HSC10051  Glyceria declinata B. D. Rogers 1964-4-27 25 Humboldt 0.5 mi. W of Arcata on Samoa Rd. Comment
  HSC96582  Glyceria elata Gordon Leppig, Tony LaBanca 2005-6-6 2247 Humboldt Pacific Lumber Co. land, Redwood House Rd., Hely Creek headwaters pond. 630 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
  CAS-BOT-BC282852  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka 60 Comment
  HSC98131  Glyceria striata Cara Witte 2007-6-27 376 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  UC187285  Glyceria striata Joseph P. Tracy 1906-7-4 2538 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1199056  Glycyrrhiza lepidota Joseph P. Tracy 1935-5-30 13913 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA168834  Gnaphalium canescens subsp. thermale Joseph P. Tracy 1942-8-30 17303 Humboldt Humboldt County: Trinity River Valley, at Willow Creek. 152 Comment
  RSA168835  Gnaphalium sphaericum Joseph P. Tracy 1942-7-26 17299 Humboldt On the Redwood House road at old mill site, 1 mile N of Redwood House. Valley of South Yager Creek. 457 Comment
  SEINET8726302 Image available Godetia quadrivulnera C. C. Harris, S. K. Harris, J. P. Tracy 1942-1 s.n. Humboldt 7 miles north and 5 miles east of Willow Creek 165 Comment
  HSC29719  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 mi. N of Manila Comment
  HSC99669  Goodyera oblongifolia T. Jimerson, J. Pageau 1979-7-31 705 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  CAS-BOT-BC304754  Grindelia hirsutula H. E. Parks 1941-8-1 24190 Humboldt Big Lagoon Comment
  HSC79171  Grindelia hirsutula C. K. Geldin-Meyers 1985-8-5 101 Humboldt Mouth of Davis Creek, S of Cape Mendocino 3 Comment
  RSA18609  Grindelia hirsutula Lyman Benson 1937-9-9 9305 Humboldt Coast, 2 miles S of Cape Mendocino. 6 Comment
  UC1223104  Grindelia hirsutula Joseph P. Tracy 1947-10-6 17941 Humboldt along highway at Smith Point Bridge (4 mi s of Garberville) Comment
  UCR48594  Grindelia stricta R. D. Goeden, Don W. Ricker 1987-9-2 870902- 14 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  HSC100584  Habenaria sparsiflora Carl C. Marshall Jun 1886 315 Humboldt Mud Spring Camp. Comment
  HSC70454  Hackelia bella Gail Newton 1980-7-20 1610 Humboldt Near Bell Swamps 1426 Comment
  SEINET202726 Image available Hainardia cylindrica Joseph P. Tracy 1938-7-15 16071 Humboldt Mouth of Eel River 3 Comment
  HSC44510  Hastingsia alba Brad Klipfel 1973-7-1 116 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UCD128250  Hedera helix Linda M. Barker 1976-9-3 1687 Humboldt 3 miles west of Arcata. Comment
  HSC58205  Helenium bigelovii Walter Overton 1979-8-1 12319 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1223099  Helenium bigelovii Joseph P. Tracy 1949-8-11 18462 Humboldt Snow Camp 1402 Comment
  JEPS35523  Helenium puberulum W. L. Jepson 1921-9-10 9458 Humboldt flat at Philipsville Philipsville Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC97359  Hemitomes congestum John DeMartini 1975-7-2 Humboldt Azalea Ave. Maw property, McKinleyville. Bulk Collection 81 Comment
  HSC53816  Hemizonella minima Griswold, Butler 1979-7-10 6253 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  HSC70841  Hemizonella minima M. A. Baker 1980-6-7 1788 Humboldt Near Brush Mtn. 1128 Comment
  UC302294  Hemizonella minima Joseph P. Tracy 1926-6-27 7684 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC582404  Hemizonella minima Joseph P. Tracy 1929-7-4 8631 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC306181  Hemizonia congesta subsp. congesta David D. Keck 1944-7-11 5497 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC306211  Hemizonia congesta subsp. congesta Doris K. Kildale 1927-8-29 3243 Humboldt Cape Mendocino Comment
  CAS-BOT-BC309981  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC309986  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  UC552351  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6 2754 Humboldt Buck Mt., Valley of Van Duzen River 762 Comment
  UC180205  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  HSC55744  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-26 10258 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC98845  Heracleum maximum Cara Witte 2008-7-16 920 Humboldt National Forest Road 4N06. 1 mile west of National Forest 1. 1228 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
  JEPS11797  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  RSA0072456  Heteromeles arbutifolia Percy C. Everett, E. K. Balls 1959-10-24 23951 Humboldt 6 mi SW from Siskiyou-Humbolt county line, Somesbar to Orleans. 152 Comment
  HSC56128  Heuchera rubescens G. L. Clifton, Griswold 1979-8-1 11931 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC41261  Hieracium albiflorum Brad Klipfel 1974-7-23 453 Humboldt Horse Mountain, NW from the towers Comment
  HSC81659  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1980-7-13 6066 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  SEINET11262552  Hieracium albiflorum D. E. Anderson 1972-6-20 5745 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit.; 0 Comment
  CAS-BOT-BC318531  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt Trinity Summit near ranger station 1828 Comment
  JEPS72935  Hierochloe occidentalis Lincoln Constance 1934-5-31 749 Humboldt along n side Bull Cr. (from w boundary of Park to Grasshopper Pk.(Squaw Cr.) rd,); South Fork Eel River, Bull Cr. flat Comment
  UC187263  Hierochloe occidentalis J. P. Tracy 1901-8-1 1237 Humboldt woods near Rohnerville 91 Comment
  CAS-BOT-BC280735  Holcus lanatus L. R. Abrams 1916-7-11 6018 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  CAS-BOT-BC280739  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC10127  Holcus lanatus True Hoyle 1967-6-24 25967 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  HSC91886  Holcus lanatus E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  POM291100  Holcus lanatus Lyman Benson 1929-7-14 1797 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC1103733  Holcus lanatus Joseph P. Tracy 1948-7-31 18080 Humboldt Eureka 30 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC102138  Holodiscus discolor var. discolor M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1042 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC32518  Hordeum marinum subsp. gussoneanum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-17 5715 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC10204  Hordeum murinum subsp. leporinum R. D. Modafferi 1965-5-13 100 Humboldt Intersection of Main St. and old Hwy. 101, S of Trinidad Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  CAS-BOT-BC144081  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt Klamath RIver 426 Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  CAS-BOT-BC537962  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill rd. ca. 10.4 mi. E. of Hoopa and Hwy. 96. Comment
  HSC58539  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9469 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  OBI13229  Hosackia rosea Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie 12 mi SE of Arcata Comment
  UC1400341  Hydrocotyle ranunculoides Robert F. Thorne and P. Everett 1965-8-9 35316 Humboldt Clam Beach Co. Park 3 Comment
  JEPS14235  Hydrocotyle ranunculoides Joseph P. Tracy 1934-7-2 13288 Humboldt mouth of Little R. 3 Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  UC562599  Hydrophyllum occidentale Joseph P. Tracy 1933-7-11 12700 Humboldt Grouse Mountain; North Coast Ranges, Trinity Summit 1524 Comment
  SEINET12279830  Hydrophyllum occidentale H. P. Chandler 1901-1 1263 Humboldt Redwood Belt 457 Comment
  SEINET10720071  Hypericum anagalloides Charles L. Hitchcock, James S. Martin 1939-7-14 Hitchcock 5442 Humboldt Woods 7 miles east of Shelter Grove. 244 Comment
  UC183761  Hypericum anagalloides Joseph P. Tracy 1913-6-22 4272 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen R., Dinsmore's Ra 762 Comment
  UC179926  Hypericum perforatum Joseph P. Tracy 1914-9-7 4618 Humboldt On Bald Mt. near Bald Mt. House; Northern Coast Ranges, Bald Mt. 914 Comment
  HSC24388  Hypericum perforatum J. O. Sawyer 1970-6-24 2240 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  RSA245281  Hypericum perforatum J. D. Ackerman, A. M. Montalvo 1973-6-17 57 Humboldt 1 mile west of Redwood Creek, along highway 299. Comment
  HSC78973  Hypochaeris glabra L. P. Janeway, Paul Wilson 1984-5-7 760 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  UC582426  Hypochaeris radicata Joseph P. Tracy 1934-7-4 13299 Humboldt at crossing Kneeland Road; Lawrence Creek 457 Comment
  HSC100106  Hypochaeris radicata A. Montalvo 1975-5-24 271 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC91876  Iris douglasiana E. Mackey 1986-5-13 Humboldt Patrick's Point State Park near Ceremonial Rock Comment
  UC1196393  Iris douglasiana Joseph P. Tracy 1924-8-3 6762 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC36635  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1907 Humboldt End of road to Pine Mtn. Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  HSC32883  Iris tenuissima Thomas W. Nelson, James Nelson 1973-5-28 935 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC96255  Iris tenuissima Laurel Goldsmith, Wanda Naylor 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC79345  Iris tenuissima T. Jimerson, J. Pageau 1979-5-1 442 Humboldt 3.35 mi. S of Hwy. 96 on Red Cap Rd., Orleans Comment
  HSC97561  Iris tenuissima subsp. tenuissima Cara Witte 2007-6-1 162 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  CDA14235  Isatis tinctoria R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  SEINET5782208 Image available Jaumea carnosa S. K. Harris, C. C. Harris 1939-8-26 Humboldt S shore of Humboldt Bay Comment
  UC1199148  Jaumea carnosa J. P. Tracy 1901-8-7 1251 Humboldt salt marsh Samoa (immediate vicinity of Eureka) 0 Comment
  HSC38832  Juncus bolanderi R. Sutherland 1976-8-13 813876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC1601711  Juncus bolanderi State Survey June 1867 6584 Humboldt Comment
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Jul 31 2010
  HSC34706  Juncus covillei Thomas W. Nelson 1974-7-20 1699 Humboldt McKeown Ranch N of Dinsmore, flood plain of Mad River Comment
  UC201385  Juncus covillei var. obtusatus Joseph P. Tracy 1918-7-5 5007 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC1103043  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1925-10-18 7290 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1103036  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1906-5-13 2458 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  RSA168867  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt Carlotta. 61 Comment
  HSC63878  Juncus laccatus M. A. Baker 1979-6-29 957 Humboldt Hopkins Creek 750 Comment
  UCD150382  Juncus lescurii William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Freshwater Lagoon. Comment
  UC1133717  Juncus patens H. S. Yates 1936-6-23 5858 Humboldt 2 mi se mouth of Mad River; Eureka Quad. 30 Comment
  POM292636  Juncus patens Lyman Benson 1929-7-14 1742 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  RSA183598  Juncus saximontanus D. E. Anderson 1965-9-5 4089 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  UC717989  Juncus xiphioides David D. Keck 1944-7-11 5495 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC235888  Keckiella corymbosa L. Constance 1936-7-17 1807 Humboldt Open bank between Dyerville & Bull Creek Flat, Humboldt State Redwood Park Comment
  CAS-BOT-BC235893  Keckiella corymbosa Milo S. Baker 1923-8-25 336 Humboldt Near Richardson Grove Comment
  JEPS10903  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Dyerville South Fork Eel River, Bull Creek Region (near Eel River junction with South Fork, on s side of Eel River, 0.5 mi nw of South Fork P.O. and railroad station, end of railroad bridge) 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
  HSC56266  Kelloggia galioides G. L. Clifton, Griswold 1979-8-2 12425 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1222453  Kickxia elatine Joseph P. Tracy 1934-8-14 13572 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UC1222816  Kickxia elatine Joseph P. Tracy 1951-7-14 19623 Humboldt near Willow Creek (borders of Lack Pond); Lack Pond Comment
  CAS-BOT-BC340318  Kyhosia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit. Elk Horn Prairie 1524 Comment
  CAS-BOT-BC340427  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt Eel River, Alton to Fortuna 15 Comment
  HSC26842  Lamium amplexicaule Thomas W. Nelson 1971-1-8 323 Humboldt Ferndale next to Co. Fair Grounds Comment
  HSC89711  Lamium purpureum Larry Levine, Manuel Pachero, Ben Murphey 1989-2-24 1 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  UC1223224  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard, along road near old house, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UCSB30626  Lapsana communis Edwards, David 1974-7-13 Humboldt NE facing bank of ditch at the NE end of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  CAS-BOT-BC337994  Lasthenia californica Doris K. Kildale 1926-5-9 1992 Humboldt Kneeland Prairie at rock pile 853 Comment
  UC1199135  Lasthenia californica subsp. californica Joseph P. Tracy 1932-5-1 9856 Humboldt Redway 182 Comment
  UC129575  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1155 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  UC169054  Lasthenia glaberrima Joseph P. Tracy 1912-7-21 3779 Humboldt Alton Northern Coast Region, Alton 30 Comment
  JEPS98949  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Red Mountain (type locality) Comment
  NY8451  Lathyrus biflorus T. W. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. Serpentine on NE slope of Red Mountain 1371.6 Comment
  UC709418  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1941-3-26 16844 Humboldt w of mouth of South Fork of Trinity River 304 Comment
  UC162839  Lathyrus littoralis Joseph P. Tracy 1906-5-13 2451 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC205039  Lathyrus palustris Charlotte M. Hoak 1931-7-15 s.n. Humboldt Big Lagoon Comment
  SEINET5327351  Lathyrus palustris J. Tracy 1907-7-20 2593 Humboldt near Samoa; region about Humboldt Bay 152 Comment
  HSC75477  Lathyrus polyphyllus J. O. Sawyer 1980-7-18 3624 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  POM277780  Lathyrus polyphyllus Lyman Benson 1930-7-18 2189 Humboldt Arcata 457 Comment
  BLMAR275  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-7-30 275 Humboldt Lacks Creek, growing by fdsides adjacent to forest 1219 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
  UCD106344  Lathyrus polyphyllus W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC89576  Lathyrus sphaericus K. Grenier, Leonel Arguello 1989-6-20 354 Humboldt Child's Hill Prairie, along Bald Hills Rd., next to Stagecoach. Comment
  UC931756  Lathyrus vestitus C. L. Hitchcock 1949-6-8 19096 Humboldt 2 mi w Blue Lake (along Highway 299) Comment
  HSC59240  Lathyrus vestitus subsp. bolanderi Clark L. Miller 1978-5-13 5125 Humboldt 2 mi. N of Trinidad State Park. Comment
  UC495710  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1929-5-5 8579 Humboldt Phillipsville, facing South Fork of Eel River South Fork of Eel River; Northern Coast Ranges 121 Comment
  UC34740  Layia carnosa W. C. Blasdale 1896-6-2 Humboldt Comment
  UC204699  Layia gaillardioides Joseph P. Tracy 1918-7-1 4982 Humboldt Cape Mendocino 3 Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC10273  Leersia oryzoides D. E. Anderson 1963-9-29 2847 Humboldt Fish Lake. Comment
  UC179962  Lemna turionifera Joseph P. Tracy 1914-9-13 4630 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC67446  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4959 Humboldt End of Murray Rd. in McKinleyville. Comment
  CHSC31922  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 1/4 mi w of its jct with Arcata Rd, ca. 5 mi s of Arcata in Bayside. 15 Comment
  CAS-BOT-BC226527  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N. of Garberville Comment
  HSC37507  Leptosiphon androsaceus J. D. Ackerman, A. M. Montalvo 1975-6-22 486 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  CAS-BOT-BC341829  Lessingia nemaclada Harley P. Chandler 1901-6-1 1503 Humboldt North Coast Ranges. Klamath River 426 Comment
  CAS-BOT-BC334614  Leucanthemum vulgare L. R. Abrams 1922-6-25 8236 Humboldt 2 miles south of Fortuna Comment
  UCSB6440  Leucanthemum vulgare Keator, Glenn 1958-6-18 Humboldt In fields from Mendocino county north through Washington, these collected at Petrolia Comment
  HSC3106  Leucojum aestivum M. S. Miller 1965-3-12 2 Humboldt Arcata, 317 Laurel Dr. Comment
  HSC101968  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 864 Humboldt Patterson Meadows 1555 Comment
  HSC32134  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC183667  Lewisia nevadensis Joseph P. Tracy 1913-6-17 4167 Humboldt near summit of Buck Mountain Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC74226  Ligusticum californicum M. A. Baker 1980-7-19 3021 Humboldt Near Bret Hole. 1814 Comment
  HSC98621  Ligusticum californicum Cara Witte 2008-7-28 957 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1592 Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  RSA130320  Lilium kelloggii Albert M. Vollmer 1949-7-1 s.n. Humboldt 3 miles east of the old Eureka-Arcata road on the Kneeland road Comment
  HSC36887  Lilium pardalinum subsp. pardalinum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2060 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  JEPS109815  Lilium rubescens Dean W. Taylor 2004-6-23 19117 Humboldt Redwood House Road, South Fork Yaeger Creek 749 Comment
  CAS-BOT-BC506200  Lilium vollmeri Albert Vollmer 1949-7-1 2 Humboldt Bog on Bald Mountain Comment
  UC199046  Limnanthes douglasii Chesnut and Drew July 1888 Humboldt Jarnigan's Comment
  OBI12589  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt S Fork Eel River. Upper Look Prairie 366 Comment
  UC668278  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1993-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
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Jun 28 2015
  HSC69869  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1978-5-28 4098 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC15785  Limnanthes douglasii subsp. nivea Jack Rockwell 1962-5-4 50 Humboldt E of road along stream bank. 488 Comment
  CDA33609  Limnobium laevigatum David Juliano 2010-9-7 PDR# 1414284 Humboldt Loleta; Catfish Lake (a stream-fed natural pond), near Tompkins Hill Road and Hookton Road 0 Comment
  UC1198569  Linanthus bicolor Joseph P. Tracy 1911-6-25 3255 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC146165  Linanthus bicolor Joseph P. Tracy 1908-6-9 2651 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1198570  Linanthus bicolor Joseph P. Tracy 1908-6-7 2616 Humboldt Butler Valley North Coast Ranges 152 Comment
  UC908983  Linanthus latisectus Milo S. Baker 1931-5-17 5186 Humboldt 4.2 mi s Garberville (on highway) Comment
  UC213380  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1920-8-13 5349 Humboldt w of Klamath River (between Pine Creek and Tuley Creek, French Camp Ridge); Northern Coast Ranges, French Camp Ridge 914 Comment
  CDA6372  Linaria vulgaris B. F. Kemp Jun 1946 Humboldt Eureka. 0 Comment
  JEPS11330  Linaria vulgaris Milo S. Baker 1923-8-4 171 Humboldt Stone Lagoon; North Coast, Stone Lagoon Comment
  HSC100707  Linnaea borealis Carl C. Marshall Jun 1886 258 Humboldt E of Hoopa. Comment
  RSA0087553  Linnaea borealis subsp. longiflora Carl B. Wolf 1937-8-13 9265 Humboldt North Coast Range, 12 mi. E of Hoopa Valley on new road towards Trinity Summit. End of road at present - sign says Trinity Summit 8 mi. 1676 Comment
  CHSC1015  Linum bienne M. Underhill 1952-7-14 Humboldt Humboldt county. 15 Comment
  HSC15800  Linum bienne W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus on S side of biological science building. Comment
  CAS-BOT-BC111982  Lipocarpha occidentalis Joseph Prince Tracy 1931-9-7 9650 B Humboldt Sand bars in River bed, Trinity River Valley at Willow Creek. 152 Comment
  HSC55228  Listera convallarioides G. L. Clifton, Griswold 1979-8-2 12428 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC64187  Listera convallarioides J. O. Sawyer, M. A. Ericksen 1979-6-23 3388 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC302158  Listera convallarioides Joseph P. Tracy 1926-6-27 7690 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  JEPS38043  Lithocarpus densiflorus Lincoln Constance 1934-6-8 839 Humboldt Cow Creek fire-trail South Fork Eel River, Bull Creek Region (from Bull Creek road, n over the divide, into the headwaters of Bear Creek) Comment
  UC1196368  Lithocarpus densiflorus Joseph P. Tracy 1923-5-13 6201 Humboldt Strongs Station Northern Coast Ranges (forest on Van Duzen River) 60 Comment
  CAS-BOT-BC36106  Lithocarpus densiflorus var. densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie Comment
  UC1196498  Lithophragma affine Joseph P. Tracy 1921-4-24 5433 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  HSC23087  Lithospermum californicum D. E. Anderson 1965-5-1 3581 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  UC1199421  Logfia gallica Joseph P. Tracy 1929-6-3 8604 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC582504  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek, Trinity River Valley, Willow Creek 152 Comment
  UC1103155  Lolium multiflorum Joseph P. Tracy 1927-7-16 8252 Humboldt mouth of Elk River; North Coast Ranges, mouth of Elk River 6 Comment
  UC33879  Lolium temulentum Chesnut and Drew 1888-7-13 Humboldt Campbell's Comment
  RSA254739  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  SEINET200744  Lomatium dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt Lower foothills of Buck mountain on its northwest slope. Comment
  UC1197161  Lomatium dissectum var. dissectum Joseph P. Tracy 1926-5-15 7480 1/2 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC97454  Lomatium nudicaule Cara Witte 2007-6-7 234 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  JEPS14248  Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain; ; Grouse Mt. 1524 Comment
  UC162919  Lomatium utriculatum Joseph P. Tracy 1911-7-7 3374 Humboldt 3 mi. n.w. junction of Willow Creek w/ Trinity R. (at meadows on mt. side, and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1714579  Lomatium utriculatum J. P. Tracy 1904-5 2116 Humboldt immediate vicinity Eureka (restricted to small patch on bluff at Bucksport); Bucksport 0 Comment
  UC1239546  Lonicera ciliosa Joseph P. Tracy 1930-7-19 9086 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC240470  Lonicera hispidula Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  RSA43892  Lonicera hispidula var. vacillans H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  UCD39986  Lonicera hispidula var. vacillans Rodney Gale Myatt 1971-9-22 1199 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  RSA47121  Lonicera involucrata var. ledebourii Doris K. Kildale 1926-4-9 1740 Humboldt Samoa road, sandy peninsula. Comment
  SBBG7361  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  SFV18507  Lonicera involucrata var. ledebourii D. Graydon 2002-5-5 39 Humboldt Mad River Fish Hatchery, Blue Lake. Along east-facing slope of Mad River, next to gravel trail. 16 Comment
  SEINET5736925 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 4.5 miles to collection site. Comment
  POM210206  Lotus aboriginus H. E. Parks 1932-07 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  UC162846  Lotus aboriginus J. P. Tracy 1905-9-3 2390 Humboldt immedite vicinity Eureka 0 Comment
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  JEPS20790  Lotus aboriginus W. L. Jepson 1902-6 1944 Humboldt Berry Ranch Redwood Creek Comment
  SEINET12154181  Lotus aboriginus J. P. Tracy 1949-1 18321 Humboldt nr Boynton PRairie 12miSE of Arcata Comment
  SEINET12154168  Lotus corniculatus J. P. Tracy 1950-1 19345 Humboldt Field's Landing, 2miS of town 6 Comment
  SEINET12170513  Lotus corniculatus C. S. Kaut 2000-1 5 Humboldt Trinidad Comment
  JEPS55451  Lotus formosissimus W. L. Jepson 1902-6-24 1922 Humboldt Eureka to Arcata Comment
  UC1197307  Lotus humistratus Joseph P. Tracy 1929-4-28 8546 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197291  Lotus humistratus Joseph P. Tracy 1911-7-4 3283 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  CDA27277  Lotus micranthus E. C. Whitney 1959-5-6 Humboldt Highway 101, south of Eureka. (Brown property) 0 Comment
  CDA27306  Lotus purshianus T. C. Fuller 1958-6-17 1721 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC1565793  Lotus purshianus var. purshianus R. Spellenberg 1990-7-10 Humboldt 11 air e Burnt Ranch at Buck Flat (at junction of USFS Rd 5N01 and USFS Rd 1, 12 mi s of Berry Summit (on CA Hwy 299) on USFS Rd 1, extreme e edge of county); Buck Flat 1432 Comment
  HSC71596  Lotus unifoliolatus var. unifoliolatus M. A. Baker 1980-6-26 2407 Humboldt Near Sims Creek 610 Comment
  UC1196933  Ludwigia palustris Joseph P. Tracy 1931-9-7 9665 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  HSC58199  Luina hypoleuca Walter Overton 1979-8-2 12302 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  UC502997  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-7-15 10586 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit, e of Corral Prairie 1828 Comment
  UC1223268  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-8-7 18433 Humboldt on road from Hoopa to Box Camp at summit of ridge near where the road to Big Hill turns off Trinity Summit; , rd fr Hoopa to Box Camp Comment
  HSC96201  Lupinus albifrons var. collinus Wanda Naylor, Laurel Goldsmith 2005-6-24 13 Humboldt S of Grouse Mountain on NF1 1595 Comment
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Jan 16 2014
  HSC14780  Lupinus arboreus D. A. Haskell 1966-4-23 28 Humboldt Near the town of Samoa Comment
  HSC90219  Lupinus arboreus L. Watson, J. Meninga Aug 1990 7 Humboldt Near Manilla. Mad River Slough and Dunes. 30 yds. N of parking lot, W side of trail. Comment
  SBBG115192  Lupinus arboreus D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, 1 mi N of Arcata Airport on Hwy 101 Comment
  SEINET10452624  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SEINET10488455  Lupinus arboreus Michael Currier 1984-7-9 Currier 59 Humboldt Along ocean fromt at clam beach, 6 miles n of arcata; hwy 101. Penstemon sp., And gramineae Comment
  RSA98774  Lupinus arboreus var. arboreus P. A. Munz 1954-7-25 19868 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UC503009  Lupinus bicolor Joseph P. Tracy 1932-5-1 9889 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  POM10719  Lupinus bicolor H. P. Chandler 1901-05 128 Humboldt Humboldt Bay. 30 Comment
  UCD107971  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  UC180177  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1914-7-4 4542 Humboldt High Prairie; on Bald Mountain Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC584126  Lupinus rivularis David D. Keck and J. Clausen 1935-6-16 3391 Humboldt mouth of Little River Comment
  SEINET10488866  Lupinus rivularis Donald E. Bright 1962-6-10 Bright 270 Humboldt Roadside, 5 mi s of ferndale. Comment
  UC198578  Lupinus rivularis Joseph P. Tracy 1917-5-26 4785 Humboldt at Eureka (on bluff at Bucksport); Northern Coast Ranges 0 Comment
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  CAS-BOT-BC436574  Luzula cascadensis Doris Kildale 1931-5-10 10690 Humboldt Snow Camp Comment
  HSC14132  Luzula comosa Gerald T. Rood 1962-5-6 15 Humboldt Kneeland Rd. 1 mi. W of Barry Rd. Comment
  HSC56454  Luzula comosa Griswold, Butler 1979-7-12 7231 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC58111  Luzula comosa G. L. Clifton, Griswold 1979-8-1 12062 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  RSA15576  Luzula comosa Carl B. Wolf 1927-8-28 1167 Humboldt 9 miles from Willow Creek, on the grade of the road to Blue Lake. Comment
  CHSC117678  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Titlow Hill Road, near junction with Forest Road 6N36, 1 air mile S of Horse Mountain, Outer North Coast Ranges. 1410 Comment
  UC249749  Luzula macrantha Joseph P. Tracy 1923-6-3 6257 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  UC249818  Luzula macrantha Joseph P. Tracy 1924-3-30 6630 Humboldt Northern Coast Ranges. Near Bridgeville 182 Comment
  HSC58241  Luzula parviflora G. L. Clifton, Griswold 1979-8-2 12406 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  RSA246934  Lycopodiella inundata R. F. Thorne, Percy C. Everett 1965-8-7 35192 Humboldt Big Lagoon, south end. 2 Comment
  RSA590653  Lycopodiella inundata Doris K. Kildale 1929-7-10 s.n. Humboldt Big Lagoon Comment
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach Comment
  UC552469  Lycopus uniflorus Eleanor Armstrong 1934-8-23 1175 Humboldt Richardson Grove 121 Comment
  HSC30342  Lysichiton americanus Dale R. Gradek 1974-5-28 94 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  UC34916  Lysichiton americanus W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  JEPS42815  Lysichiton americanus Lincoln Constance 1934-6-18 894 Humboldt near South Fork Rail Road Station and Post Office (border of North Dyerville Flat, South Fork Eel River); Bull Creek Region, South Fork Eel River 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
  HSC31215  Madia exigua D. E. Anderson 1972-6-20 5733 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC166101  Madia exigua Joseph P. Tracy 1908-6 2815 Humboldt opposite Buck Mountain (Valley of the Van Duzen River); Northern Coast Ranges 762 Comment
  HSC37658  Madia gracilis R. Sutherland 1976-8-19 5 .19876 Humboldt 259 Comment
  JEPS40214  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt at the crossing of Kneeland Road Northern Coast Ranges, Lawrence Creek 609 Comment
  JEPS17994  Madia sativa George B. Rossbach 1955-6-10 550 Humboldt near Humboldt Bay (lagoon and lighthouse (between Fairhaven and end of sandy point off Eureka) Comment
  RSA2932  Mahonia nervosa C. B. Wolf 1931-8-29 1243 Humboldt Near summit of Orick Hill on road to Weitchpec. 304 Comment
  CHSC68509  Maianthemum dilatatum Vernon H. Oswald 1997-4-10 8324 .1 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  SBBG58753  Maianthemum dilatatum L. Rowntree -Jul-1931 Humboldt Carlotta Comment
  SBBG8899  Maianthemum dilatatum H. and M. Dearing 1939-5-26 3447 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  SBBG1057  Maianthemum racemosum H. and M. Dearing 1933-5-16 259 Humboldt Weott Comment
  HSC57896  Maianthemum racemosum subsp. amplexicaule Overton, Butler 1979-7-31 11476 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC511455  Maianthemum racemosum subsp. amplexicaule Volney Rattan 1883-6-1 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  CAS-BOT-BC511459  Maianthemum racemosum subsp. amplexicaule Huron H. Smith 1911-6-6 3795 Humboldt Field Museum of Natural History, Vances Camp 19 Comment
  RSA289948  Maianthemum racemosum subsp. amplexicaule Lincoln Constance 1934-6-2 793 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  SEINET12047102  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1972-1 72 -013 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  HSC58757  Malacothrix clevelandii Overton, Butler 1979-7-25 9876 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  JEPS36629  Malacothrix floccifera Lincoln Constance 1934-6-22 777 Humboldt Bull Creek road to mouth of Bull Creek (and up Bull Creek); South Fork Eel River, Bull Creek Region 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-BC140134  Malus fusca C. B. Wolf 1930-10-26 1766 Humboldt So. edge of Big Lagoon near the Redwood Highway Bridge 3 Comment
  UC72979  Malus fusca H. P. Chandler May 1905 Humboldt Eureka Comment
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Jun 17 2020
  HSC23743  Marah oregana Tim Baroni 1971-7-6 122 Humboldt About 5 mi. S of Ferndale on the Mattole Rd. Comment
  SD51266  Marah oregana Darley F. Howe 1961-8-1 3116 Humboldt 3.3 mi. N of Trinidad on US 101 Comment
  UC1197427  Medicago polymorpha Joseph P. Tracy 1934-4-14 13175 Humboldt Eureka 30 Comment
  HSC48779  Medicago polymorpha Brad Klipfel 1974-5-11 338 Humboldt SW side of Big Lagoon Comment
  UC552701  Melica bulbosa Joseph P. Tracy 1935-7-24 14194 Humboldt near Trinity Summit, Ranger Station; Trinity Summit 1828 Comment
  SEINET200337 Image available Melica californica J. P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie 762 Comment
  UC180493  Melica californica Joseph P. Tracy 1913-6-18 4195 Humboldt opposite Buck Mountain (Dinsmore's Ranch, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC180729  Melica geyeri Joseph P. Tracy 1913-6-20 4230 Humboldt lower nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC99070  Melica harfordii Cara Witte 2007-7-12 521 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  UCD87511  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road. Comment
  HSC10367  Melica subulata R. D. Zortman 1963-5-5 31 Humboldt 5 mi. NE of Arcata, S of Mad River, off Warren Creek Rd. 91 Comment
  HSC71789  Melica subulata Gail Newton 1980-6-16 181 Humboldt Near Monks Camp. 1097 Comment
  UC1145129  Melica subulata Joseph P. Tracy 1942-6-2 17100 Humboldt 2 mi n Bridgeville 609 Comment
  UC526922  Melica subulata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8913 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS63463  Mentha canadensis Milo S. Baker 1923-8-4 178 Humboldt swamp s end Stone Lagoon; swamp s end of Stone Lagoon Comment
  UC34932  Mentzelia laevicaulis var. laevicaulis Hy Am-Pum 1888-7-25 Humboldt Comment
  CAS-BOT-BC348373  Micropus californicus var. californicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  SEINET202280  Micropus californicus var. californicus J. P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  JEPS13226  Microseris laciniata subsp. laciniata Joseph P. Tracy 1936-6-17 14942 Humboldt Bridgeville 198 Comment
  UC1199451  Microseris laciniata subsp. laciniata Joseph P. Tracy 1933-7-26 12925 Humboldt s slope Grouse Mountain (towards low creek); North Coast Ranges, s slope Grouse Mountain 1219 Comment
  HSC99590  Microsteris gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 259 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
  HSC20682  Mimulus aurantiacus var. aurantiacus H. E. Parks, S. T. Parks Jun 1951 Humboldt Trinidad; along bay shore near landing Comment
  HSC20685  Mimulus aurantiacus var. aurantiacus Steve Dorei 1970-10-31 132 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  RSA245267  Mimulus aurantiacus var. aurantiacus C. L. Davidson 1967-7-7 20 Humboldt North Bank Rd Comment
  RSA550829  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1115 Humboldt Just N of Miranda. 0.1 mi s of bridge over Bridge Creek along Hwy 254 (parallels Hwy 101) 101 Comment
  UC1196800  Mimulus breweri Joseph P. Tracy 1919-9-22 5264 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC20758  Mimulus dentatus R. E. Hafenfeld 1965-5-9 51 Humboldt Fern Canyon, Gold Bluff Beach Comment
  RSA135338  Mimulus dentatus Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  JEPS10567  Mimulus douglasii Joseph P. Tracy 1925-5-24 7012 Humboldt Kneeland Prairie 762 Comment
  HSC20748  Mimulus guttatus W. A. Heaton 1965-5-17 7 Humboldt 0.5 mi. N of Trinidad St. Park near beach Comment
  HSC22508  Mimulus guttatus W. B. Thompson 1967-7-20 17 Humboldt Along creek W of the access road to Clam Beach Co. Park Comment
  UC147880  Mimulus inodorus Joseph P. Tracy 1908-6 2697 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA535811  Mimulus kelloggii David M. Thompson 1986-3-26 856 Humboldt Somes Bar. Along Hwy 96, 100 ft S of Siskiyou Co. line; at confluence of Klamath and Salmon rivers. 61 Comment
  UC582696  Mimulus microphyllus Joseph P. Tracy 1936-5-29 14818 Humboldt French Camp Ridge 1066 Comment
  HSC24378  Mimulus moschatus J. O. Sawyer 1970-6-24 2253 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC33170  Mimulus moschatus Thomas W. Nelson 1973-8-19 1110 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC74453  Mimulus nanus var. nanus Gail Newton 1980-8-10 1994 Humboldt Near Blake Mtn. 1798 Comment
  HSC48863  Mimulus pulsiferae Brad Klipfel 1973-6-10 56 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC72697  Mimulus pulsiferae Gail Newton 1980-6-24 583 Humboldt Near Ladder Rock 1570 Comment
  HSC20826  Mimulus pulsiferae J. P. Tracy 1934-6-27 11089 Humboldt Grouse Mtn.; near 'Cold Springs 1433 Comment
  HSC67388  Minuartia douglasii Thomas W. Nelson, James Nelson 1980-6-10 5413 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC1198335  Minuartia douglasii Joseph P. Tracy 1933-6-13 12559 Humboldt Bairs Ranch Redwood Creek 609 Comment
  UC176959  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1912-7-31 3926 Humboldt Buck Mountain Northern Coast Ranges (near the summit) 1676 Comment
  HSC58019  Minuartia pusilla G. L. Clifton 1979-7-31 11821 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC4063  Minuartia pusilla D. E. Anderson 1963-5-19 2469 Humboldt Kneeland Area Comment
  HSC24108  Mitella diversifolia J. O. Sawyer 1970-6-27 2307 Humboldt Site 318. 1494 Comment
  HSC24390  Mitella diversifolia J. O. Sawyer 1970-6-24 2252 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  POM117236  Mitella ovalis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CAS-BOT-BC433031  Mitella ovalis Volney Rattan 1883-6-1 s.n. Humboldt Freshwater Comment
  UC492220  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC98562  Mitella trifida var. trifida Cara Witte 2008-6-18 739 Humboldt Approximately 1.5 miles north-west of Forest Service Rd. 6N01B. On an unmarked road on right hand side. 1433 Comment
  HSC97461  Moehringia macrophylla C. Witte 2007-5-21 51 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  HSC97492  Moehringia macrophylla Cara Witte 2007-5-23 112 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  UCD63139  Moehringia macrophylla Heather Mehl 2008-4-15 s.n. Humboldt California. Humboldt County: Redwood National Park, 11 miles east of Hwy 101 on Bald Hills Road. 640 Comment
  SDSU7320  Monardella odoratissima Harvey 1939-7-16 2428 Humboldt us 101 Comment
  HSC40852  Monardella odoratissima subsp. pallida Thomas W. Nelson 1976-7-9 2997 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  HSC98984  Monardella sheltonii Cara Witte 2007-7-27 604 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 Comment
  CAS-BOT-BC128708  Moneses uniflora Doris K. Kildale 1926-6-6 2115 Humboldt Trail to Gold Bluffs Comment
  UC21673  Monotropa hypopitys Harley P. Chandler Jun 1901 1536 Humboldt Klamath River 426 Comment
  CAS-BOT-BC444800  Montia diffusa Don Hagar 1957-6-6 59 Humboldt Brush Mountain, ca. 4 miles southwest of Willow Creek 853 Comment
  UC183598  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC45288  Morella californica Brad Klipfel 1974-4-27 314 Humboldt SW side of Big Lagoon. Comment
  SD40075  Morella californica Edith A. Purer 1932-7-27 4134 Humboldt Samoa Comment
  UCD110310  Morella californica T. I. Storer 1931-7-1 2220 Humboldt Near Samoa. Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UCD86796  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1149 Humboldt Richardson Grove. Comment
  HSC70359  Myosotis discolor M. A. Baker 1980-6-7 1874 Humboldt Near Ammon Creek 732 Comment
  HSC104051  Myosotis latifolia E. R. Fyer 2015-4-29 32 Humboldt Arcata Community Forest 166 Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  HSC57707  Myriophyllum sibiricum G. L. Clifton, Terry Griswold 1979-7-25 10959 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC77872  Myriophyllum sibiricum Andy Gordus 1978-1 Humboldt N side of Hwy. 299, near Essex Rd. Comment
  HSC77875  Myriophyllum sibiricum William White 1975-5-25 Humboldt Orick Beach ponds Comment
  HSC6891  Nasturtium officinale Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC90662  Nasturtium officinale Gail Newton 1982-6-10 3637 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  JEPS79940  Navarretia Joseph P. Tracy 1937-7-19 15464 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1008709  Navarretia atractyloides Henry M. Pollard 1945-8-26 Humboldt between Orleans and Camp Creek; Klamath River Canyon Comment
  HSC98519  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-7 235 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1375 Comment
  UC1222721  Navarretia intertexta Joseph P. Tracy 1950-6-23 18860 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  JEPS70336  Navarretia intertexta W. L. Jepson 1902-7-11 2019 Humboldt Martin's Ranch South Fork Trinity River Comment
  UC23651  Navarretia intertexta subsp. propinqua C. C. Marshall 1888-1 Humboldt Comment
  JEPS70369  Navarretia leucocephala subsp. bakeri Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle Yager Creek and North Yager Creek (East Ranch) 762 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1222716  Navarretia squarrosa Joseph P. Tracy 1950-8-4 19254 Humboldt Grasshopper Peak Bull Creek State Park Comment
  UCR143528  Navarretia tagetina J. P. Tracy 1950-6-23 18862 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint 213 Comment
  UC24190  Nemophila heterophylla Mary H. Manning Humboldt Hupa Comment
  UC146183  Nemophila menziesii var. atomaria Joseph P. Tracy 1908-6-9 2645 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR494  Nemophila parviflora Jennifer Wheeler 2009-4-30 494 Humboldt King range, Hidden Valley trail; trail start Comment
  CAS-BOT-BC219408  Nemophila parviflora Alice Eastwood 1943-6-10 18979 Humboldt Landsdale Grove, Redwood Highway Comment
  UC673116  Nemophila parviflora Joseph P. Tracy 1940-7-7 16666 Humboldt Brouse Mt. Grouse Mt. (on banks) 1463 Comment
  RSA114991  Nemophila parviflora var. parviflora E. K. Balls, Lee W. Lenz 1955-5-15 20731 Humboldt 1 mile west of Willow Creek along US Highway 299, Willow Creek to Arcata. 168 Comment
  JEPS12382  Nicotiana quadrivalvis Lincoln Constance 1934-6-18 896 Humboldt border North Dyerville Flat (near South Fork Railroad Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC1196162  Nicotiana quadrivalvis Joseph P. Tracy 1940-10-17 16769 Humboldt 2 to 5 mi e South Fork (along Eel River); Eel River 45 Comment
  UC73584  Nicotiana quadrivalvis var. quadrivalvis J. Burtt Davy and Blasdale Jun 20 1899-Jan 1 1900 5709 Humboldt Hoopa Valley; North Coast Ranges Comment
  UCD110176  Notholithocarpus densiflorus Joseph M. DiTomaso 1976-3-28 351 Humboldt West of Lord Ellis summit on Highway 299 between Arcata and Willow Creek. 762 Comment
  UCR4969  Notholithocarpus densiflorus Frank C. Vasek 1966-7-13 660713- 03 Humboldt North Coast Range, 3 mi. west of Garberville 450 Comment
  UC774627  Nuphar lutea subsp. polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi s of Capetown (on road to Cape Mendocino) 91 Comment
  CAS-BOT-BC400074  Nuphar polysepala L. R. Abrams 1918-6-16 7160 Humboldt Willow Creek Comment
  HSC37911  Nuttallanthus texanus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UCSB15645  Nuttallanthus texanus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  UC582473  Nuttallanthus texanus Joseph P. Tracy 1928-5-6 8431 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CHSC35519  Oemleria cerasiformis Thomas Nelson 1976-3-22 2276 Humboldt On hillside beside Eureka Muni. Golf Course. Comment
  UC666834  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC18398  Oemleria cerasiformis Anonymous 1956-5-1 Humboldt Mattole area Comment
  UC673043  Oenanthe sarmentosa Joseph P. Tracy 1940-8-25 16713 Humboldt near High Prairie Bald Mt. 1005 Comment
  HSC16524  Oenothera glazioviana David K. Smith 1968-11-20 67 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  JEPS26031  Orobanche californica subsp. californica Joseph P. Tracy 1930-7-21 8893 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  JEPS69030  Orobanche californica subsp. grayana Theodore F. Niehaus 1972-8-29 934 Humboldt About 1/4-1/2 mile east on old horse trail (to Trinity Summit Station), directly from crossing of new forest road at Oregon Creek. Oregon Creek a tributary of upper Tish-Tang a Tang Creek, Western Salmon Mountains. Comment
  UC585982  Orobanche fasciculata Joseph P. Tracy 1935-7-30 14374 Humboldt Salmon Summit. Comment
  UC1197445  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  CAS-BOT-BC458029  Orthilia secunda Carl B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E of Hoopa Valley on new road twoards Trinity Summit 1676 Comment
  HSC56063  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11707 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC582573  Orthocarpus imbricatus Joseph P. Tracy 1937-7-29 15571 Humboldt near McKay Camp South Fork Mountian (South Fork Mountain); South Fork Mountain 1676 Comment
  RSA80283  Orthocarpus purpurascens var. latifolius F. W. Peirson 1926-7-14 7064 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  HSC56006  Osmorhiza berteroi Overton, Butler 1979-7-31 11474 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CDA38481  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-1 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  UC314578  Osmorhiza occidentalis Joseph P. Tracy 1926-5-15 7474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC902196  Oxalis albicans subsp. pilosa Joseph P. Tracy 1942-5-16 17336 Humboldt Garberville 152 Comment
  HSC79477  Oxalis oregana Kenneth Clark 1980-3-23 531 Humboldt Alluvial terrace of S fork Dead Man's Gulch. 53 Comment
  UC203882  Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt e Bald Mt. (High Prairie Creek); Northern Coast Ranges 914 Comment
  UCSB18740  Oxalis oregana Jensen, Karen 1965-4-15 Humboldt 0.2 miles W of U.S. Highway 101, at Miranda turnoff 91 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
  UC418982  Packera bolanderi var. bolanderi H. E. and S. T. Parks May 1930 747 Humboldt near Blue Slide; Middle Van Duzen River Comment
  SEINET200360 Image available Paeonia brownii Joseph P. Tracy 1938-6-13 15920 Humboldt Grouse Mountain at 'Cold Springs 1430 Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  RSA44527  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  HSC104292  Parentucellia viscosa Samantha E. Andres 2016-5-19 7 Humboldt Mad River County Park, coastal trail to the Mad River Spit 4 Comment
  HSC90262  Parentucellia viscosa Jean Hanson 1980-5-24 75 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  UCD123256  Parentucellia viscosa L. R. Heckard 1960-8-31 1221 Humboldt about 0.5 mile south of Dry lagoon Beach State Park. Comment
  UC667097  Parnassia californica Joseph P. Tracy 1934-8-29 13619 Humboldt South Fork Mountain at McKay Camp South Fork Mountain; , McKay Camp 1676 Comment
  UC204717  Paspalum distichum Joseph P. Tracy 1918-9-29 5108 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC1199004  Paxistima myrsinites Joseph P. Tracy 1935-7-29 14346 Humboldt near Ranger Station Trinity Summit 1584 Comment
  UC213504  Pedicularis racemosa Joseph P. Tracy 1919-9-18 5249 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  POM266544  Pedicularis racemosa Lester Rowntree 1937-8-9 s.n. Humboldt Summit Happy Camp Rd. Comment
  UC1314350  Pellaea andromedifolia R. M. and A. F. Tryon 1958-6-5 5556 Humboldt 3.8 mi w Redway (on rd to Briceland) Comment
  UC41734  Penstemon anguineus Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  RSA63666  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt Near end of Forest Rd from Hoopa towards Trinity Summit. 1372 Comment
  SEINET7719718  Penstemon corymbosus Chesnut, Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC76256  Penstemon heterophyllus Denis Kearns 1981-7-6 43 Humboldt Near Mosquito Lake 1122 Comment
  RSA33967  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1926-4-30 1935 Humboldt Bucilana Bridge. Comment
  NY601689  Penstemon heterophyllus var. heterophyllus J. P. Tracy 1933-6-25 12616 Humboldt Camp Grant, along Eel River, 2 to 5 miles east of the South Fork 45.7 Comment
  HSC100913  Penstemon jaffrayanus Carl C. Marshall Jun 1886 275 Humboldt Trail E of Hoopa. Comment
  NY627415  Penstemon newberryi var. berryi R. W. Spellenberg 1990-7-9 10229 Humboldt Extreme east edge of county, 6 air miles west-northwest of Hyampom, 36 miles south of CA Highway 299 and Berry Summit on USFS Road 1, ca. 5 miles north of Blake Mountain on South Fork Mountain. 1676.4 Comment
  NY629991  Penstemon parvulus J. P. Tracy 1942-6-23 17223 Humboldt Trinity Summit. Ridge top one mile west of Mud Springs, in serpentine formation 1158.2 Comment
  SEINET5329314 Image available Penstemon rattanii J. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  UC165061  Pentachaeta alsinoides Joseph P. Tracy 1903-5-23 1890 Humboldt dry hillside at Alder Point; Eel River 243 Comment
  UCD137766  Pentagramma triangularis M. Wiesendanger 1928-4-7 909 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  SEINET196690  Perideridia gairdneri Joseph P. Tracy 1942-9-20 17324 Humboldt 2 miles S of Fields Landing 3 Comment
  UC314588  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-6-3 6255 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC709387  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC99999  Persicaria capitata J. P. Smith 2009-11-17 12697 Humboldt Mouth of storm drain, at 7th & E in Eureka Comment
  CHSC118462  Petasites frigidus var. palmatus Richard R. Halse 2016-3-24 9684 Humboldt Along U.S. Hwy. 101 ca. 9.6 miles south of Orick. 8 Comment
  HSC97674  Petasites frigidus var. palmatus Gordon Leppig 1998-3-9 711 Humboldt Arcata, West End Rd., 3 mi. W of Ericson Way 30 Comment
  UC1239507  Petasites frigidus var. palmatus Joseph P. Tracy 1937-7-2 15405 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  JEPS81041  Phacelia bolanderi J. P. Smith and Steve Selva 1970-6-14 3821 a Humboldt along CA 96 Whitmore Creek 152 Comment
  UC56715  Phacelia bolanderi Harley P. Chandler May 1901 1088 Humboldt Idlewild North Coast Ranges 91 Comment
  HSC23998  Phacelia bolanderi Tim Baroni 1971-6-25 44 Humboldt Comment
  CHSC110702  Phacelia corymbosa Dean Wm. Taylor 2004-6-24 19129 Humboldt North Coast Ranges. Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  UC175732  Phacelia egena Joseph P. Tracy 1913-6-13 4112 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  JEPS2230  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1936-6-9 14876 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC552718  Phalaris arundinacea Joseph P. Tracy 1935-6-8 13950 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  SDSU904  Philadelphus lewisii Harvey 1938-8-14 2335 Humboldt US 299 Comment
  UC11465  Philadelphus lewisii J. Burtt Davy June 1899 5547 Humboldt along banks of river near Scotia; North Coast Ranges, Eel River Comment
  UC1198875  Philadelphus lewisii Joseph P. Tracy 1925-11-25 7327 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC56721  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC725910  Philadelphus lewisii A. A. Heller 1923-7-9 13776 Humboldt near Blue Lake (5 mi from Arcata) Comment
  HSC58664  Phleum alpinum G. L. Clifton, Griswold 1979-8-1 12026 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  UC34058  Phleum alpinum J. P. Tracy 1901-5-30 1106 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC526749  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  POM301286  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt Trinity Summit, near Box Camp 1524 Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  HSC70638  Physocarpus capitatus R. York 1980-5-18 595 Humboldt Near Black Mountain 792 Comment
  UC1541675  Physocarpus capitatus W. K. Parks June 1932 Humboldt vicinity of Trinidad Comment
  CAS-BOT-BC73440  Picea sitchensis Edward Lee 1934-8-17 1154 Humboldt Near east shore of Big Lagoon, 35 miles north of Euraka. Comment
  CAS-BOT-BC73446  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  RSA15564  Picea sitchensis C. B. Wolf 1927-8-29 1202 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  UC637022  Picea sitchensis Edward Lee 1934-8-17 1154 Humboldt 35 mi n of Eureka (near e shore of Big Lagoon) Comment
  RSA0116907  Picea sitchensis Lyman Benson 1949-9-4 14188 Humboldt Bishop Pine Lodge, 5 miles North of Trinidad. Mt. Range: North Coast Ranges. 15 Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  CAS-BOT-BC78290  Pinus attenuata Carl B. Wolf 1937-8-13 9240 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  CAS-BOT-BC78374  Pinus contorta L. R. Abrams 1916-7-18 6352 Humboldt Arcata to Trinidad Comment
  MACF019659  Pinus contorta E. R. Blakley 1966-8-17 6799 Humboldt Patrick's Point 5 mi. North of Trinidad. 60 Comment
  CAS-BOT-BC73200  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC37669  Pinus jeffreyi R. Sutherland 1967-8-27 27 .876 Humboldt Elk Ridge, Bulk Collection # 107 716 Comment
Read comments
Apr 30 2013
  UC902029  Pinus jeffreyi Joseph P. Tracy 1949-7-19 18387 Humboldt Grouse Mountain 1524 Comment
  HSC82621  Pinus monticola Thomas W. Nelson 1979-7-11 5006 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC79025  Pinus ponderosa Doris K. Kildale 1927-2-20 2900 Humboldt [Lassecks] Lassics Peaks Trail, Cold Spring, Goat Camp 914 Comment
  CAS-BOT-BC136468  Piperia candida Harley P. Chandler 1901-6-1 1385 Humboldt Field redacted by CAS, contact the data manager for more information 304 Comment
  JEPS79893  Piperia elongata Joseph P. Tracy 1925-7-12 7213 Humboldt near the South Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC24556  Pityopus californicus Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC65967  Pityopus californicus M. A. Baker 1980-7-20 3043 Humboldt Near Bell Swamps 11 Comment
  UC526818  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  JEPS68107  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt above Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  SD29277  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt South Fork Eel River; southeast slope of mountain above Look Prairie. 366 Comment
  UC552836  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC708087  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC78093  Plagiobothrys tenellus W. W. Price 1890-6-30 Humboldt Jarnigan's Comment
  SEINET8665540  Plantago australis subsp. hirtella J. P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka Comment
  JEPS14281  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1196140  Plantago erecta Joseph P. Tracy 1912-5-12 3638 Humboldt Eureka Northern Coast Region 0 Comment
  UC585985  Plantago erecta Joseph P. Tracy 1932-5-10 9945 Humboldt near Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  UC162584  Plantago erecta Joseph P. Tracy 1911-5-30 3197 Humboldt Bucksport North Coast Region, Humboldt Bay Region 0 Comment
  RSA18012  Plantago hirtella var. galeottiana Carl B. Wolf 1927-8-22 781 Humboldt Big Lagoon. Comment
  HSC16843  Plantago lanceolata N. R. Waite 1965-5-19 51 Humboldt W edge of Humboldt State University campus. Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  HSC55103  Platanthera dilatata G. L. Clifton 1979-7-31 11835 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC96482  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 443 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC99478  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 137 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  UC146077  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach (at Humboldt Bay); Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC91636  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  HSC90237  Plectritis congesta L. Watson, J. Meninga Mar 1991 16 Humboldt Near Manila, Mad River slough and dunes, SW edge of parking lot. Comment
  HSC95648  Plectritis congesta Andrea Pickart 2002-4-3 34 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  UC1239580  Plectritis congesta Joseph P. Tracy 1904-4-24 2024 Humboldt Ocean Beach at Humboldt Bay Ocean Beach Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC96230  Plectritis congesta subsp. brachystemon Kaylea Eickhoff, Cara M. Witte 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC21686  Plectritis congesta subsp. congesta J. R. Good 1964-5-3 37 Humboldt 0.10 mi. N of Fairhaven, 60 yds. W of road. Comment
  HSC44410  Plectritis macrocera R. York 1978-5-6 162 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC99142  Pleuropogon refractus Cara Witte 2008-7-16 905 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile S of intersection with National Forest 1. 1409 Comment
  RSA256328  Pleuropogon refractus J. R. Reeder, C. G. Reeder 1973-5-26 6184 Humboldt 13 miles S of Klamath along Hwy 101 in Big Tree State Park 61 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  UC1152688  Pleuropogon refractus D. E. Anderson 1963-3-24 2404 b Humboldt Old logging road on s side of Jacoby Creek Comment
  UC127319  Pleuropogon refractus Harley P. Chandler May, 1901 1107 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 15 Comment
  HSC40309  Poa bolanderi Thomas W. Nelson, Jane P. Nelson 1976-6-22 2846 Humboldt Along Rd. to Goat Hill. 1646 Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  UC525631  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon; North Coast Region 6 Comment
  UC34064  Poa douglasii J. P. Tracy 1900-7-4 886 Humboldt Ocean Beach at Samoa (opposite Eureka) Comment
  UCD90523  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay. 30 Comment
  CAS-BOT-BC254281  Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 3 Comment
  HSC10713  Poa secunda subsp. secunda G. N. Bos 1965-5-15 269 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC10789  Poa secunda subsp. secunda J. P. Tracy 1927-6-12 8143 Humboldt Horse Mtn. 1524 Comment
  UC249504  Poa secunda subsp. secunda Joseph P. Tracy 1922-4-30 6011 Humboldt near Willow Creek Trinity River Valley; Northern Coast Ranges 152 Comment
  CAS-BOT-BC244298  Podagrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  HSC17210  Polemonium carneum J. Wendell Howe 5 May [year missing] Humboldt Big Lagoon Comment
  JEPS69886  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  UC1178965  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  UC902121  Polygala cornuta var. cornuta Joseph P. Tracy 1946-7-28 17622 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198084  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1921-8-7 5864 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  UCSB30611  Polygonum aviculare Edwards, David 1974-7-30 Humboldt In NW corner of Uniontown Shopping Center at the corner of "F" St. and 7th St., Arcata 18 Comment
  UC146191  Polygonum californicum Joseph P. Tracy 1908-6 2922 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1198092  Polygonum californicum Joseph P. Tracy 1929-8-18 8657 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  HSC55078  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11691 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SEINET3405786 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17887 Humboldt Trinity Summit, Near Box Camp, in open fir timber 1524 Comment
  RSA466318B  Polygonum douglasii Thomas W. Nelson, James Nelson 1976-7-28 3057 Humboldt Growing on meadow along 2E27 just N of its Jct. 1S07 1524 Comment
  SEINET3405782 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Trinity Summit; Gravelly slopes on Box Camp trail Comment
  UC672961  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1541405  Polygonum douglasii subsp. spergulariiforme H. E. Parks and J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills 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
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  BLMAR720  Polygonum paronychia Jennifer Wheeler 2011-5-20 720 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  CHSC109542  Polygonum paronychia B. Castro; L. P. Janeway 2004-9-10 1473 Humboldt North Coast South spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  UCD100526  Polygonum paronychia James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4957 Humboldt End of Murray Road in McKinleyville. Comment
  CAS-BOT-BC419957  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Trinity Summit. Head of Devil's Hole 1828 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  CDA2923  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  HSC99101  Polygonum polystachyum Cara Witte 2007-6-12 244 Humboldt Intersection of 4N70 and 4N32. Intersection to Grouse Mountain Lookout. 1628 Comment
  RSA46835  Polygonum polystachyum Doris K. Kildale 1925-9-26 s.n. Humboldt Vacant lots - Eureka Comment
  HSC1139  Polypodium californicum J. W. Johnson 1962-4-10 1233 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  UC71485  Polypodium glycyrrhiza Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  SEINET10530419  Polypodium glycyrrhiza Mary Susan Taylor 1982-10-24 Taylor 5184 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC370620  Polypodium glycyrrhiza H. E. Parks 1925-6-17 3233 Humboldt Lawrence Creek Comment
  HSC89486  Polypodium scouleri P. A. Daly 1986-3-12 68 Humboldt Trinidad Head, along trail 61 Comment
  SEINET6166118  Polypodium scouleri W. D. Billings 1940-6-22 1345 Humboldt 1/2 mile north of Trinidad Comment
  UC183480  Polypogon interruptus Joseph P. Tracy 1912-7-26 3834 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC232595  Polypogon monspeliensis Henry M. Pollard 1948-7-21 s.n. Humboldt Bank of Klamath River near Orleans Comment
  HSC26179  Polypogon monspeliensis J. P. Smith, Steve Selva 1970-6-14 3837 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC38920  Polypogon monspeliensis Linda M. Barker 1976-6-1 1552 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  SEINET10593691  Polypogon monspeliensis Huron H. Smith 1911-1 Smith s.n. Humboldt Comment
  UCD91482  Polypogon viridis Joseph P. Tracy 1943-8-29 17445 Humboldt At Eureka. 30 Comment
  HSC73633  Polystichum imbricans M. Baker 1980-7-23 3178 Humboldt Near Orleans Mtn. 1859 Comment
  HSC47991  Polystichum imbricans Brad Klipfel 1974-6-17 681 Humboldt Horse Mtn. Comment
  SD92985  Polystichum imbricans subsp. imbricans W. Bertsch 1953-7-29 215 Humboldt near Weott, Highway 101 60 Comment
  CAS-BOT-BC76663  Polystichum munitum Doris K. Kildale 1928-12-30 6764 Humboldt Phillipsville Comment
  CHSC31316  Polystichum munitum Mark Stopher 1980-6-4 86 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC54652  Polystichum munitum Overton, Butler 1979-7-25 9860 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC906671  Polystichum munitum Joseph P. Tracy 1947-5-24 17688 Humboldt Big Lagoon 12 Comment
  HSC79181  Polystichum munitum C. J. Thomas 1984-9-25 116 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 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
  JEPS393  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  SBBG83772  Potentilla anserina subsp. pacifica J. D. Hobson -Jul-1966 Humboldt beach and liff at S end of sand spit forming Eureka harbor, Loleta, 10 mi S of Eureka Comment
  HSC59078  Potentilla anserina subsp. pacifica Thomas Wood 1979-4-20 117 Humboldt At Clam Beach, off Hwy. 101 ca. 7 mi. N of Arcata 3 Comment
  HSC57357  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-26 10053 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  CAS-BOT-BC158492  Potentilla gracilis var. gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie - on Bald Hills road 609 Comment
  HSC54230  Prosartes hookeri Griswold, Butler 1979-7-12 7297 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC57112  Prosartes hookeri Overton, Butler 1979-7-25 9855 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC15478  Prosartes smithii H. E. Parks, S. T. Parks 1952-5 24452 Humboldt Spruce Cove, Trinidad 61 Comment
  CAS-BOT-BC517503  Prosartes smithii H. C. Cantelow 1936-5-17 s.n. Humboldt 3 miles east of Orick Comment
  SEINET12050892  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  HSC23126  Prunella vulgaris A. D. Maxfield 1967-7-12 2 Humboldt 400 yds. SW of Strawberry Creek and Dows Prairie Rd., McKinleyville 91 Comment
  SEINET9325325  Prunella vulgaris Unknown 1934-5-6 Humboldt Fort Seward. Comment
  UC630493  Prunella vulgaris var. lanceolata H. E. and S. T. Parks July, 1937 24052 Humboldt Spruce Cove Trinidad; , Trinidad Comment
  UCLA49214  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  RSA245006  Prunella vulgaris var. lanceolata William J. Ferlatte 1966-6-15 2093 Humboldt Near Bridgeville Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC1198774  Prunus emarginata Joseph P. Tracy 1928-4-29 8420 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 60 Comment
  JEPS24541  Pseudognaphalium ramosissimum Dick Waring 1960-8-1 Humboldt in disturbed area about 2 mi n Weott; Avenue of the Giants Comment
  HSC95588  Pseudognaphalium stramineum Andrea Pickart 2002-7-3 162 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  SD39794  Pseudognaphalium stramineum Edith A. Purer 1932-7-27 4128 Humboldt Samoa Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  CAS-BOT-BC80110  Pseudotsuga menziesii Doris K. Kildale 1926-11-14 2859 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC80116  Pseudotsuga menziesii Doris K. Kildale 1927-12-1 4193 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC80122  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew Post Office 304 Comment
  HSC54524  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-23 9458 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC70805  Pseudotsuga menziesii var. menziesii Gail Newton 1980-7-24 1781 Humboldt Near Somes Mtn. 1615 Comment
  UCD136153  Pteridium aquilinum var. pubescens Linda M. Barker 1976-5-13 1480 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET3874358 Image available Pteridium aquilinum var. pubescens J. D. Ackerman 1975-9-15 744 Humboldt Above HSU, Arcata.; 0 Comment
  CAS-BOT-BC460505  Pterospora andromedea Doris K. Kildale 1927-7-23 3794 Humboldt Hoaglin Lake, near Lasseck's Peaks 1524 Comment
  UCD92960  Puccinellia pumila Joseph P. Tracy 1938-7-15 16073 Humboldt Mouth of Eel River. Comment
  UC1197571  Pyrola asarifolia Edith Tracy 1898-7-1 248 Humboldt on Kneeland Prairie Road about 10 miles Esta of Eureka 457 Comment
  SD42325  Pyrola secunda Carl B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1676 Comment
  HSC98830  Quercus chrysolepis Cara Witte 2008-7-10 866 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  UCD40471  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -12 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  CAS-BOT-BC94309  Quercus garryana Henry M. Pollard 1944-9-1 s.n. Humboldt near Orleans Comment
  HSC8236  Quercus garryana D. E. Anderson 1961-9-3 1778 Humboldt Comment
  UC667990  Quercus garryana Joseph P. Tracy 1935-10-6 14753 Humboldt Kneeland Prairie 762 Comment
  UCSB1172  Quercus garryana var. garryana Muller, Cornelius 1954-6-21 Humboldt 7 mi. ESE of Mad River, Summit of South Fork Mtn., on road to Forest Glen Comment
  HSC8263  Quercus kelloggii Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  HSC99009  Quercus kelloggii Cara Witte 2008-7-1 785 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UC1196511  Quercus sadleriana Joseph P. Tracy 1947-7-5 17798 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1388987  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi ne Hoopa (along trail to Trinity Summit, from end of Forest Rd) 1371 Comment
  UCD47445  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; Comment
  UC1196505  Quercus wislizeni Joseph P. Tracy 1925-8-23 7246 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC180641  Quercus wislizeni Joseph P. Tracy 1914-5-14 4458 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  POM118706  Ranunculus californicus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SEINET13716688  Ranunculus californicus Unknown 1910-5-8 3132 Humboldt Immediate vicinity of Eureka 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
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  POM126167  Ranunculus orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook. 61 Comment
Read comments
Oct 27 2009
  POM172654  Ranunculus orthorhynchus var. platyphyllus V. King Chesnut, E. R. Drew 1888-7-20 s.n. Humboldt Pilot Creek Comment
  UC162817  Ranunculus pusillus Joseph P. Tracy 1903-5-24 1912 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  JEPS79962  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  UC480960  Ranunculus repens Harley P. Chandler May, 1901 1111 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CDA3483  Ranunculus repens T. C. Fuller 1966-5-24 14709 Humboldt Arcata Bottoms, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  HSC29783  Ranunculus repens var. repens Thomas W. Nelson 1970-6-11 602 Humboldt Adjacent to 4244 Fairway Dr., Eureka Comment
  HSC99407  Ranunculus uncinatus var. uncinatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 56 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  UC61100  Rhamnus californica subsp. californica J. Burtt Davy 1899-6-21 5732 Humboldt Supply Creek Hoopa Valley Comment
  JEPS41951  Rhamnus californica subsp. occidentalis W. L. Jepson 1902-7-2 1977 Humboldt Three Creek to Willow Creek 762 Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  RSA7813  Rhamnus purshiana Doris K. Kildale 1928-7-29 5925 Humboldt Mouth of Bear River at Capetown Comment
  UC55738  Rhamnus purshiana J. Burtt Davy 1899-6-18 5609 Humboldt near Korbel (lower slopes of Bald Mt.); North Coast Ranges, Bald Mt. Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  UC725903  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt 3 mi n of Trinidad (at Bishop Pine Lodge); Bishop Pine Lodge Comment
  HSC100478  Rhododendron occidentale Carl C. Marshall Apr 1886 186 Humboldt Vicinity of Humboldt Bay. Comment
  UCSB18968  Rhododendron occidentale Jensen, Karen 1965-4-14 Humboldt Along U.S. Highway 101, 1 km. S of Trinidad 45 Comment
  CAS-BOT-BC200388  Rhododendron occidentale var. paludosum Doris K. Kildale 1927-6-26 3589 Humboldt Patrick's [Patricks] Point Comment
  RSA69331  Rhododendron occidentale var. paludosum F. W. Peirson 1923-7-11 3801 Humboldt 7 miles N of Arcata. Comment
  CAS-BOT-BC92883  Ribes bracteosum Alice Eastwood 1907-4-21 17 Humboldt Trinidad. Comment
  UC1225766  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  CAS-BOT-BC176804  Ribes laxiflorum Harley P. Chandler 1901-5-1 1202 Humboldt Humboldt Bay 30 Comment
  HSC39684  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2737 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  UC205483  Ribes lobbii Joseph P. Tracy 1919-9-18 5247 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC519248  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  HSC44292  Ribes menziesii Barbara Kelly 1977-4-23 306 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  SJSU7838  Ribes menziesii R. D. Spadoni 1965-3-26 108 Humboldt Trinidad Comment
  RSA0021768  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad. 61 Comment
  SEINET3825262 Image available Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt Head of Brett Hole 1829 Comment
  UC902057  Ribes roezlii Joseph P. Tracy 1942-3-8 17066 Humboldt Miranda South Fork of Eel River 121 Comment
  UCD102480  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 miles west of Harris Post Office. 853 Comment
  HSC22511  Ribes sanguineum D. E. Anderson 1964-4-24 3540 Humboldt 0.5 mi. from junction of Hwy. 299 along Titlow Hill Rd. Comment
  HSC31648  Ribes sanguineum Timothy B. Devine 1974-5-4 313 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC103214  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-27 8 Humboldt Elkhead (just north of Trinidad on Stagecoach Road). 40 Comment
  HSC20333  Ribes sanguineum var. glutinosum C. B. Wolf 1927-8-29 1191 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen Comment
  HSC102023  Ribes viscosissimum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 924 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  RSA254782  Rigiopappus leptocladus Thomas W. Nelson, James Nelson 1973-5-28 969 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1222364  Romanzoffia tracyi Joseph P. Tracy 1950-6-17 18829 Humboldt in <Tracy> garden Eureka Comment
  HSC87236  Romulea rosea var. australis Thomas W. Nelson, Jane P. Nelson 1987-4-11 8421 Humboldt Beside county road that follows Bear River, 100 ft. from junction with Hwy. 1 at Capetown 8 Comment
  UC902153  Rosa Joseph P. Tracy 1947-8-24 17889 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  HSC19615  Rosa californica Lincoln Constance 1934-5-26 654 Humboldt South Fork Eel River, S end of Dyerville Bridge. Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC146528  Rosa gymnocarpa M. S. Jussel 1931-5-2 67 Humboldt 20 miles north of Garberville Comment
  CAS-BOT-BC146844  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4825 Humboldt Near Bridgeville Comment
  JEPS45644  Rosa nutkana var. nutkana Milo S. Baker 1923-7-15 11 Humboldt outskirts of Eureka Comment
  UC1199026  Rosa nutkana var. nutkana Joseph P. Tracy 1927-7-4 8230 Humboldt Sibley Ranch Iaqua 609 Comment
  UC183754  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 3998 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC146500  Rosa pisocarpa subsp. pisocarpa Joseph P. Tracy 1947-7-5 17814 Humboldt Trinity Summit, near Box Camp 1524 Comment
  HSC19620  Rosa rubiginosa J. R. Lippincott 1967-7-16 10 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  UC14221  Rosa spithamea Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC57115  Rubus leucodermis Overton, Butler 1979-7-25 9858 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC147238  Rubus parviflorus Kenneth Clark 1980-3-23 535 Humboldt On middle terrace of north fork Dead Man's Gulch 76 Comment
  HSC56140  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11961 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  LA37949  Rubus parviflorus Doris K. Gillespie; 1938-8-8 15398 Humboldt Elk River, 6 mi. S. of Eureka Comment
Read comments
May 4 2014
  UCR275117  Rubus parviflorus Charity A. Hartshorn 2016-5-14 29 Humboldt Arcata Community Forest 244 Comment
  UCSC000369  Rubus parviflorus Unknown 1975-5-30 52 Humboldt Eureka; T.P.L. Co., Freshwater Comment
  JEPS46230  Rubus spectabilis W. L. Jepson 1934-5-7 16708 Humboldt near Big Tree footbridge (Bull Creek); Bull Creek Comment
  SEINET3111191  Rubus spectabilis Steve Selva, Roger Jensen 1974-8-21 27 Humboldt Approx 3 miles N of Trinidad; redwood grove adjacent to Hwy 101 rest stop. Comment
  RSA613682  Rubus spectabilis var. franciscanus D. D. Keck, J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River. Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  UC1199049  Rubus ursinus J. P. Tracy 1901-6-23 1164 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCD17618  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 046 Humboldt California. Humboldt County: 6.6 miles north of Ettersburg on road to Honeydew. Comment
  POM271074  Rubus vitifolius Lyman D. Benson 1929-7-15 1814 Humboldt Clam Beach. Trinidad. Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  SEINET5710900  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  CAS-BOT-BC421934  Rumex acetosella Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC102053  Rumex acetosella M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 958 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  HSC17592  Rumex crispus R. J. Vernimen 1963-3-25 18 Humboldt Along railroad tracks at Clam Beach lagoons Comment
  HSC36319  Rumex persicarioides Thomas W. Nelson 1975-8-10 2242 Humboldt At Shively Comment
  CAS-BOT-BC433754  Rumex pulcher W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  HSC98046  Rupertia physodes Cara Witte 2007-6-14 280 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 mile north of White Oak Opening. 1258 Comment
  HSC93512  Ruppia cirrhosa Gordon Leppig 1998-6-25 752 Humboldt Hwy. 101 marker 81.60, brackish ditch on E side of Hwy. 2 Comment
  RSA249520  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-9 35340 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  UCD92351  Rytidosperma penicillatum R. Tofsrud 1947-7-1 200 Humboldt near Loleta. Comment
  UC668106  Sagina apetala Joseph P. Tracy 1933-3-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  CHSC31321  Salicornia virginica Mark Stopher 1980-6-4 85 Humboldt Along tidal creek, near Elk River bridge Hwy 101. 1 Comment
  CAS-BOT-BC129886  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC103809  Salix exigua Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM220144  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 969 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM361044  Salix exigua H. E. Parks 1931-5-14 958 Humboldt Fernbridge. Eel River. 10 Comment
  RSA5652  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SD992  Salix exigua var. hindsiana Herold E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River, on gravel bars 10 Comment
  UC519381  Salix exigua var. hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC104104  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC104110  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107713  Salix hookeriana Doris K. Kildale 1927-3-25 3003 Humboldt Near Buckspot School House 50 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
  HSC20066  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1231 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  HSC38176  Salix hookeriana Thomas W. Nelson 1976-3-5 3286 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC96357  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  LA208758  Salix hookeriana Harold E. Parks; August 1931 1053 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM184871  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-10 1103 -a Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  POM219537  Salix hookeriana H. E. Parks 1931-08 1057 Humboldt Bishop Pine Lodge. Trinidad. 150 Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  POM219565  Salix hookeriana H. E. Parks 1931-3-24 915 -a Humboldt Trinidad. 90 Comment
  SBBG59115  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1196549  Salix hookeriana Joseph P. Tracy 1943-11-28 17453 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC1196556  Salix hookeriana Joseph P. Tracy 1937-4-11 15261 Humboldt along Eel Rl Camp Grant (2-5 mi e of the South Fork); S. Fork Eel R., Camp Grant 45 Comment
  UC275495  Salix hookeriana Joseph P. Tracy 1925-11-1 7303 Humboldt Shiveley Northern Coast Ranges, Shiveley 60 Comment
  UC481277  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC504055  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC506401  Salix hookeriana Joseph P. Tracy 1933-4-9 10931 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (below Blue Slide bridge on open gravel bar) 91 Comment
  UC470455  Salix jepsonii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8928 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  JEPS13097  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  HSC19987  Salix lasiandra H. E. Parks 1931-5-14 959 Humboldt Lower Van Duzen River 0 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
  UC490539  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-7-13 10497 Humboldt meadow at Corral Prairie Corral Prairie; Klamath Mts., Trinity Summit 1524 Comment
  CAS-BOT-BC128200  Salix lasiandra var. lasiandra Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC107612  Salix lasiolepis Harold E. Parks 1931-8-25 1059 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC107646  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20003  Salix lasiolepis J. P. Tracy 1933-4-9 10969 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC20010  Salix lasiolepis J. P. Tracy 1933-2-26 10914 Humboldt Miranda, S Fork of Eel River 122 Comment
  HSC98056  Salix lasiolepis Cara Witte 2007-7-2 395 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  POM161046  Salix lasiolepis Joseph P. Tracy 1926-9-19 7801 Humboldt Valley of S Yager Creek 762 Comment
  UC1196619  Salix lasiolepis Joseph P. Tracy 1933-7-20 12807 Humboldt Mad River, near Blue Lake 15 Comment
  UC469408  Salix lasiolepis Joseph P. Tracy 1927-3-27 7869 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469411  Salix lasiolepis Joseph P. Tracy 1927-4-10 7886 Humboldt Redwood Creek, at Berry's 274 Comment
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490546  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC495609  Salix lasiolepis Joseph P. Tracy 1932-10-12 10877 Humboldt bank <of> S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC504030  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506387  Salix lasiolepis Joseph P. Tracy 1932-8-21 10356 Humboldt lower w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, , Three Cabins 457 Comment
  CAS-BOT-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107403  Salix lasiolepis var. lasiolepis Doris K. Kildale 1928-4-29 5958 Humboldt Redwood Creek at Berry's 289 Comment
  POM220145  Salix lucida subsp. lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC125631  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0974 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125636  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0973 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  UC275492  Salix melanopsis Joseph P. Tracy 1925-7-26 7209 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC470452  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481287  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 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
  UC481828  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC512012  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1235 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519371  Salix melanopsis Joseph P. Tracy 1933-6-9 12530 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R., Shively 30 Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  UC212994  Salix purpurea Joseph P. Tracy 1920-2-29 5307 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay, Ryan's Slough 15 Comment
  CAS-BOT-BC129127  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  HSC20084  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Laribee Ridge, Van Duzen River Comment
  HSC41937  Salix scouleriana Ed Cope 1977-4-23 24 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC98583  Salix scouleriana Cara Witte 2008-7-25 938 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1324 Comment
  UC512015  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1228 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  POM219686  Salix sessilifolia H. E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC128952  Salix sitchensis H. E. McMinn 1922-8-4 338 Humboldt Along Van Duzen River - 18 miles from Fortuna 6 Comment
  CAS-BOT-BC128986  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Orick, on Van Duzen River 6 Comment
  HSC20107  Salix sitchensis H. E. Parks 1931-3-24 903 Humboldt Orick Comment
  HSC37879  Salix sitchensis Thomas W. Nelson 1976-3-22 2281 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  HSC38186  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3288 Humboldt Eureka, E side of F St., 3800 block Comment
  HSC96575  Salix sitchensis Gordon Leppig 2003-2-20 1805 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  UC1225919  Salix sitchensis Joseph P. Tracy 1942-7-26 17295 Humboldt near the Redwood House S. Yager Creek 609 Comment
  UC490493  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC492339  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 a Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UCSB26078  Salix sitchensis Crovello, Theodore 1964-6-24 Humboldt Along Lost Man Creek 100 yards west of junction with U.S. 101 j 2.5 miles south of turnoff from U.S. 101 for Prairie Creek Redwoods State Park Comment
  UC585975  Salpichroa origanifolia Joseph P. Tracy 1933-8-22 12972 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC101557  Salvia mellifera J. P. Smith, J. O. Sawyer 2009-10-4 12685 Humboldt Along New Navy Base Road near Samoa Boat Ramp 2 Comment
  HSC41198  Sambucus nigra subsp. caerulea Thomas W. Nelson, Jane P. Nelson 1977-7-4 3590 Humboldt Along road N of Alder Springs. 1524 Comment
  CAS-BOT-BC235119  Sambucus racemosa var. racemosa L. R. Abrams; R. Bacigalupi 1922-6-25 8281 Humboldt Big Lagoon south of Orick Comment
  UCSB25080  Sambucus racemosa var. racemosa Keefe, Joseph 1967-7-8 Humboldt Juntion Crannell Road and Little River Drive, north of Eureka 6 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
  CHSC13504  Sanicula arctopoides C. Eiser 1974-4-10 21 Humboldt Along coast, between Orick and Prairie Creek Redwoods State Park. 22 Comment
  HSC37578  Sanicula arctopoides J. D. Ackerman 1975-6-10 448 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC59088  Sanicula arctopoides Clark L. Miller 1979-5-9 3 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  HSC86898  Sanicula arctopoides Anthony J. Desch, Bryon Cariss 1988-4-21 61 Humboldt 0.4 mi. N of W end of Samoa Bridge Comment
  HSC89551  Sanicula arctopoides Mike Roantree 1985-4-28 13 Humboldt N side of Trinidad Head, on coastal buff slope below trail Comment
  UC1197113  Sanicula arctopoides Joseph P. Tracy 1904-4-24 4028 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC37194  Sanicula bipinnatifida Barbara Kelly 1976-5-13 255 Humboldt Below road at Kneeland Airport Comment
  HSC39444  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1197100  Sanicula crassicaulis Joseph P. Tracy 1927-5-15 8034 Humboldt Trinity River Valley near the South Fork; Trinity River Valley 182 Comment
  UC1006710  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  SEINET12119621  Sanicula tracyi J. P. Tracy 1950-1 19022 Humboldt Sproston's Place, 3 mi S of Burr Valley Comment
  HSC96245  Sanicula tuberosa M. Lindquist, C. Riley 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  HSC32275  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5629 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC102082  Saxifraga ferruginea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 984 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS42981  Saxifraga ferruginea Jos. P. Tracy 1932-7-18 10710 Humboldt head of Brett Hole (Trinity Summit); , Brett Hole Comment
  SEINET3411470 Image available Saxifraga mertensiana Lincoln Constance, Reed C Rollins 1942-5-11 2869 Humboldt Three miles W of East Fork of Willow Creek Comment
  UC154143  Saxifraga mertensiana Mrs. M. H. Manning 1902-3 Humboldt near Hupa Comment
  UCSB28675  Saxifraga mertensiana Calhoun, R. 1973-3-26 Humboldt Along Avenue of the Giants, 1 mile from southern junction with US 101, 3 miles north of Garberville 45 Comment
  RSA366413  Schoenoplectus acutus var. acutus Joseph P. Tracy 1914-5-30 s.n. Humboldt North Coast, near Hydesville Comment
  HSC93515  Schoenoplectus acutus var. occidentalis Gordon Leppig 1998-6-25 848 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of log pond 2 Comment
  UCSB23755  Schoenoplectus pungens Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samosa on peninsula; on western side of Humboldt Bay Comment
  UC1103492  Scoliopus bigelovii Joseph P. Tracy 1936-4-26 14808 Humboldt Kneeland Prairie 762 Comment
  RSA168942  Scoliopus bigelovii Joseph P. Tracy 1950-4-20 18611 Humboldt 1 mile west of Dinsmores; Dinsmores: Along Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC89423  Scrophularia californica P. A. Daly 1984-5-8 13 Humboldt Trinidad Head 61 Comment
  HSC100682  Scrophularia californica Carl C. Marshall Apr 1886 175 Humboldt Everywhere. Comment
  UC1222777  Scrophularia californica subsp. californica Joseph P. Tracy 1950-6-8 18752 Humboldt beach s of Cape Mendocino Comment
  UC577335  Scutellaria antirrhinoides Joseph P. Tracy 1937-7-24 15520 Humboldt head of Devil'sw Hole (Trinity Summit); , Devil'sw Hole 1676 Comment
  UC577340  Scutellaria californica Joseph P. Tracy 1937-7-11 15423 Humboldt vicinity of Garberville 121 Comment
  HSC79342  Sedum laxum subsp. flavidum D. K. Imper 1983-6-15 Humboldt Along Hwy. 299 S of Hwy, adjacent to swimming hole Comment
  HSC6478  Sedum radiatum W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  HSC97996  Sedum radiatum Cara Witte 2007-7-8 440 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  UC1198841  Sedum radiatum Joseph P. Tracy 1927-5-15 8054 Humboldt Supply Creek near Hoopa Valley; Northern Coast Ranges, Supply Creek, nr Hoopa Valley 304 Comment
  UC205179  Sedum radiatum Charlotte M. Wilder 1912-10-1 Humboldt Upper Van Duzen River, along trail Upper Van Duzen River 914 Comment
  RSA0074871  Sedum radiatum subsp. radiatum C. B. Wolf 1937-6-14 2858 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC6477  Sedum spathulifolium var. pruinosum D. E. Anderson 1961-8-25 1751 Humboldt Beach 1.5 mi. S of Trinidad Comment
  HSC89451  Selaginella oregana P. A. Daly 1986-3-12 85 Humboldt Trinidad Head 61 Comment
  RSA170262  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel. 640 Comment
  CAS-BOT-BC364020  Senecio integerrimus var. major Doris K. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 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
  UC1223048  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt Kneeland Prairie 762 Comment
  UC1223149  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt near Ashland Butte; Kneeland Prairie 762 Comment
  HSC37393  Sequoia sempervirens Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 500 Humboldt Along Lost Man Creek. 38 Comment
  HSC49960  Sequoia sempervirens Maralyn O'Meara 1973-2-9 121 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  HSC95785  Sequoia sempervirens Will Ferrand 2002-4-28 43 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  POM181978  Sequoia sempervirens J. G. Lemmon 1901-09 s.n. Humboldt Eureka Comment
  RSA10470  Sequoia sempervirens E. R. Johnson 1932-08 s.n. Humboldt Along the Redwood Highway on the Eel River Comment
  SDSU2036  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D St. Acarta. 55 Comment
  UC526852  Setaria viridis Joseph P. Tracy 1934-8-18 13589 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  HSC12703  Sherardia arvensis Jana Kattenhorn 1970-10-28 148 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  UC18874  Sidalcea diploscypha C. C. Marshall 1888-1 Humboldt Comment
  POM61723  Sidalcea malachroides Jos. Burtt Davy, Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  UC175692  Sidalcea malachroides Joseph P. Tracy 1912-6-30 3716 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC58334  Sidalcea malviflora subsp. asprella Overton, Butler 1979-8-2 12637 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  UC176968  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3598 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  UC1197968  Sidalcea oregana subsp. eximia Joseph P. Tracy 1932-9-16 10800 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  HSC58187  Sidalcea oregana subsp. spicata G. L. Clifton, Griswold 1979-8-2 12277 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1198367  Silene antirrhina Joseph P. Tracy 1919-5-31 5168 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, along Willow Creek 152 Comment
  RSA183641  Silene californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC1137920  Silene californica H. S. Yates 1936-6-23 5874 Humboldt 4 mi nne Cathay Peak; Dyerville Quad., nne of Cathay Peak Comment
  UCR123953  Silene californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6965 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  RSA20850  Silene californica C. B. Wolf 1937-6-18 8890 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC44538  Silene campanulata subsp. greenei Brad Klipfel 1973-7-15 154 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC161034  Silene gallica Joseph P. Tracy 1904-7-24 2124 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC45386  Silene gallica R. York 1978-5-20 170 Humboldt Along Bluff Creek Trail 610 Comment
  HSC59744  Silene gallica Clark L. Miller 1979-5-9 6116 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  HSC68115  Silene gallica J. P. Smith 1973-5-26 6869 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA275316  Silene hookeri J. P. Smith, John Sawyer, Jane Cole 1978-5-21 9932 Humboldt Six Rivers National Forest. Along Ishi Pishi Road, 1.5 miles from Ishi Pishi Bridge over the Klamath River. 305 Comment
  HSC48789  Silene laciniata subsp. californica Brad Klipfel 1975-6-17 666 Humboldt Along Titlow Hill Rd. Comment
  UC1051527  Sisyrinchium bellum Helen K. Sharsmith 1953-6-28 4384 Humboldt between Bell Springs and Blue Rock Ranch (on Bell Springs Road); Inner North Coast Ranges 853 Comment
  SD42554  Sisyrinchium californicum Carl B. Wolf 1937-8-10 2899 Humboldt Big Lagoon, bog at State Park. 6 Comment
  UC275554  Smilacina stellata Joseph P. Tracy 1924-9-7 Humboldt Table Bluff Northern Coast Ranges 182 Comment
  UC666970  Smilacina stellata Joseph P. Tracy 1939-4-25 16222 Humboldt Bull Creek; mouth 60 Comment
  HSC89464  Solanum americanum P. A. Daly 1986-2-23 52 Humboldt Along trails at Trinidad Head 6 Comment
  HSC89586  Solanum aviculare M. Roantree 1985-5-24 57 Humboldt W side of Trinidad Head, along trail Comment
  UC154016  Solanum physalifolium var. nitidibaccatum J. P. Tracy 1909-8-10 3074 Humboldt immediate vicinity of Eureka 0 Comment
  UC577350  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  HSC57941  Solidago elongata G. L. Clifton, Griswold 1979-7-31 11610 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC365663  Solidago spathulata S. K. Harris 1939-9-5 s.n. Humboldt At Samoa Comment
  HSC68158  Solidago spathulata J. P. Smith 1971-10-6 4977 Humboldt End of Murray Rd. in McKinleyville. Comment
  BLMAR663  Solidago velutina subsp. californica Jennifer Wheeler 2012-7-12 663 Humboldt King range, Strawberry rock 253 Comment
  CAS-BOT-BC364967  Solidago velutina subsp. californica Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Camp Creek, Klamath River Canyon Comment
  UC1541619  Solidago velutina subsp. californica H. E. and S. T. Parks 1937-9-1 24081 Humboldt Trinidad , Trinidad (Spruce Cove) 64 Comment
  HSC26465  Sonchus asper T. O. Osborne 1970-7-18 24 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC90637  Sparaxis tricolor Gail Newton 1982-5-2 2515 Humboldt Elk River Wildlife Area, Eureka Comment
  UC14919  Sparganium erectum subsp. stoloniferum Hattie F. Tracy 1901-6-26 1216 Humboldt Loleta 15 Comment
  CAS-BOT-BC235366  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth Comment
  HSC93849  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1130 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  UCD99184  Spergula arvensis Collector unknown 1925-6-7 1613 Humboldt Willow Camp. Comment
  UC1198348  Spergula arvensis subsp. arvensis Joseph P. Tracy 1935-4-11 13774 Humboldt Eureka 30 Comment
  HSC95590  Spergularia canadensis var. occidentalis Andrea Pickart 2002-7-19 181 Humboldt Arcata Marsh at end of I St. 0 Comment
  HSC58037  Spergularia rubra G. L. Clifton 1979-7-31 11877 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC96475  Spiraea douglasii Gordon Leppig 1997-6-19 457 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA246715  Spiraea douglasii Robert F. Thorne, Percy C. Everett 1965-8-7 35195 Humboldt At S end of Big Lagoon. 2 Comment
  HSC18465  Spiranthes romanzoffiana Jana Kattenhorn 1970-10-14 168 Humboldt Big Lagoon Comment
  HSC36650  Spiranthes romanzoffiana J. D. Ackerman 1975-8-9 631 Humboldt Corner of Guintoli Lane and West End Rd. Vacant lot. Comment
  HSC98653  Spiranthes romanzoffiana Cara Witte 2007-7-26 594 Humboldt Board Camp Mountain. Intersection of Forest Service Road 4N38 and National Forest 1. 1395 Comment
  UC1196404  Spiranthes romanzoffiana Joseph P. Tracy 1936-8-2 15066 Humboldt French Camp Ridge; by spring 1066 Comment
  UC666998  Spiranthes romanzoffiana Joseph P. Tracy 1930-6-15 8766 1/2 Humboldt summit of ridge between Dobbyn Creek and Alder Point (near Alder Point) 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
  CHSC804  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1239731  Stachys ajugoides var. rigida Joseph P. Tracy 1949-7-7 18334 Humboldt Table Bluff 91 Comment
  UC535709  Stachys ajugoides var. rigida Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  UC577328  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UCLA70847  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA71140  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  RSA34043  Stachys bullata A. A. Heller 1923-7-9 s.n. Humboldt Between Eureka and Fortuna. Comment
  RSA447391  Stachys emersonii Christopher Davidson 1973-5-29 2201 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  RSA32867  Stachys rigida subsp. quercetorum A. A. Heller 1923-7-8 s.n. Humboldt Near Pepperwood Comment
  CAS-BOT-BC175348  Stellaria borealis subsp. sitchana Malcom A. Nobs; S. Galen Smith 1949-8-9 1245 Humboldt Clam Beach Comment
  HSC90683  Stellaria media Gail Newton 1982-5-1 2500 Humboldt Eureka, Elk River Wildlife Area Comment
  BLMAR188  Stellaria nitens Donald Hazlett 1994-6-7 188 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1223172  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1946-11-17 17666 Humboldt Eel River at mouth of Van Duzen River Eel River, Van Duzen River Comment
  HSC58417  Stipa lemmonii Griswold, Butler 1979-7-12 7219 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SEINET5585763  Stipa occidentalis Percy Train 1937-1 515 Humboldt Canyon Creek summit, east slope Santa Rosa Range 2195 Comment
  HSC58676  Stipa occidentalis var. californica Gilbert Muth 1979-8-1 12181 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  UC668050  Streptanthus tortuosus Joseph P. Tracy 1937-7-2 15399 Humboldt on ridge 2 mi e Grove's Prairie (rocky bank in open); Trinity Summit 1524 Comment
  HSC58202  Streptanthus tortuosus var. tortuosus Walter Overton 1979-8-1 12306 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  JEPS62166  Streptopus amplexifolius var. americanus W. L. Jepson 1902-7-17 2058 A Humboldt trail to Devil's Backbone; Trinity Summit 2133 Comment
  CAS-BOT-BC269573  Symphoricarpos albus var. laevigatus M. S. Jussel 1931-5-2 83 Humboldt 20 miles north of Garberville Comment
  HSC23753  Symphoricarpos albus var. laevigatus Tim Baroni 1971-7-6 112 Humboldt 2 mi. S of Ferndale on Mattole Rd. Comment
  BLMAR272  Symphoricarpos mollis Jennifer Anthony-Wheeler 1999-7-30 272 Humboldt Lacks Creek, growing along ridgees, slopes, open places 1219 Comment
  CAS-BOT-BC99173  Symphyotrichum chilense Alice Eastwood 1923-8-14 12318 Humboldt Samoa Comment
  RSA417726  Symphyotrichum foliaceum var. foliaceum E. S. Spalding 1924-7-11 s.n. Humboldt Between Trinidad and Arcata Comment
  CAS-BOT-BC98928  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  JEPS40830  Symphyotrichum subspicatum Milo S. Baker 1923-8-3 Humboldt roadside near Trinidad Comment
  UC199113  Synthyris reniformis Chestnut and Drew 1888-7-8 Humboldt Campbell's Comment
  UC604632  Synthyris reniformis Joseph P. Tracy 1938-4-5 15705 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  HSC6244  Tanacetum bipinnatum Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  UC1409185  Tanacetum camphoratum Robert F. Thorne and P. Everett 1965-8-7 35224 Humboldt Somoa Peninsula 3 Comment
  HSC6268  Taraxacum officinale Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UC1197329  Tauschia kelloggii Joseph P. Tracy 1929-7-4 8632 Humboldt French Camp Ridge 1066 Comment
  NY17379  Taxus brevifolia J. P. Tracy 1927-3-27 7865 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
  UC161580  Tellima grandiflora Joseph P. Tracy 1911-6-4 3214 Humboldt 5 mi from coast Little River; Northern Coast Region 121 Comment
  BLMAR282  Tellima grandiflora Jennifer Anthony-Wheeler 1999-5-28 282 Humboldt King range, growing along prosper ridge of the strawberry rock grazing allotment 304 Comment
  HSC20430  Tellima grandiflora D. E. Anderson 1962-3-31 1964 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  HSC79487  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Along S Fork of Dead Man's Gulch 69 Comment
  HSC100623  Thalictrum Carl C. Marshall May 1886 224 Humboldt Humboldt Bay. Comment
  UC502931  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1932-6-26 10263 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC552288  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-25 12885 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC1299  Thuja plicata Francis Winter 1960-5-6 Humboldt 1.0 mi. W of Blue Lake, Hwy. 299 Comment
  HSC45916  Thuja plicata Jerome Peterson 1978-4-16 6 Humboldt HSU Campus near Home Economics Building Comment
  UCD134040  Thuja plicata Roman Gankin 1965-8-7 562 Humboldt Near edge of sphagnum bog just north of parking area; Big Lagoon County Park. Comment
  UC1198819  Thysanocarpus curvipes Joseph P. Tracy 1933-5-18 12188 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  UCD102963  Tiarella trifoliata var. unifoliata K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  SD51331  Tiarella trifoliata var. unifoliata Darley F. Howe 1961-7-31 3097 Humboldt 12 miles north of Garberville on #101 29 Comment
  HSC100653  Tiarella unifoliata Carl C. Marshall Jun 1886 323 Humboldt Trail E of Hoopa. Comment
  HSC38208  Tolmiea diplomenziesii Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  HSC73176  Tonella tenella M. A. Baker 1980-5-17 1249 Humboldt Near Le Perron Peak 1066 Comment
  HSC74665  Tonella tenella Gail Newton 1981-6-6 2189 Humboldt Near Pilot Ridge Trail 1314 Comment
  UC169095  Tonella tenella Mrs. M. H. Manning Apr 1902 Humboldt Hupa Comment
  UC902213  Tonella tenella Joseph P. Tracy 1949-6-6 18307 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range 1280 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  UC183628  Torilis nodosa Joseph P. Tracy 1912-6-9 3683 Humboldt Alton 30 Comment
  SACT002419  Torresia macrophylla V. Barnes 1959-1 Humboldt Comment
  HSC58686  Torreyochloa pallida var. pauciflora Overton 1979-8-1 12380 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  UCD93214  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-8-17 88 Humboldt South Fork Mtn., ca. 15 miles N.E. of Bridgeville-Trinity County line. Comment
  JEPS63933  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  HSC86487  Tracyina rostrata Tom Duebendorfer 1988-6-13 882 Humboldt N of Alderpoint, take Blocksburg Rd. N., 0.15 mi. E on Stewart Ranch Rd. 210 Comment
Read comments
May 18 2010
  JEPS88012  Tracyina rostrata John L. Strother with Bruce G. Baldwin and Robert Ornduff 1996-5-30 1363 Humboldt on unpaved Stewart Ranch Rd ca 1 km (0.6 mi) e Alderpoint-Blocksburg Road (ne of Alderpoint) 160 Comment
  OBI15363  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt Dobbyn Creek; 3 mi NE of Alderpoint Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC97554  Trientalis borealis subsp. latifolia Cara Witte 2007-6-1 168 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  HSC17943  Trientalis latifolia Yarick 1960-8-3 Humboldt K&K. Kruger Cr. Comment
  UC160914  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1908-6-9 2652 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UC495670  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-1 9894 A Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC1103431  Trifolium barbigerum Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3636 Humboldt Eureka Northern Coast Ranges Comment
  UC1197187  Trifolium bifidum var. decipiens Joseph P. Tracy 1927-5-8 7964 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  HSC45124  Trifolium depauperatum R. Sutherland 1978-5-2 1 .2578 Humboldt 341 Comment
  HSC45106  Trifolium dubium R. Sutherland 1978-5-16 6 .16578 Humboldt 157 Comment
  RSA195478  Trifolium dubium C. R. Gunn 1963-6-2 2694 Humboldt Two miles SE of Arcata Comment
  HSC100531  Trifolium eriocephalum Carl C. Marshall Jun 1886 282 Humboldt Bald Hills, near Orcutt's. Comment
  SEINET6934966  Trifolium eriocephalum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  POM214889  Trifolium eriocephalum subsp. eriocephalum Joseph P. Tracy 8821 Humboldt Buck Mountain Comment
  UC1223462  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1933-7-9 12647 Humboldt Brannan Mtn 1066 Comment
  UC1197030  Trifolium fucatum Joseph P. Tracy 1913-6-20 4233 Humboldt nw slope Buck Mtn (lower foot); Northern Coast Ranges Comment
  UC418985  Trifolium fucatum H. E. and S. T. Parks May 1930 738 Humboldt vicinity Bridgeville Comment
  HSC58651  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11709 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1541602  Trifolium longipes Harold E. Parks 1934-6-14 4784 Humboldt Horse Mtn 1432 Comment
  HSC40537  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2527 Humboldt In the Canyon of Bear Creek, W of Black Lassic 1524 Comment
  UC302112  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn North Coast Ranges Comment
  UC1223331  Trifolium longipes var. oreganum Joseph P. Tracy 1933-7-11 12698 Humboldt between Horse Mt. and Grouse Mt. (near Clear Lake) Comment
  UC1197232  Trifolium macraei Joseph P. Tracy 1923-6-18 6281 Humboldt near Mazeppa Ranch (Bear River Ridge); Northern Coast Ranges 30 Comment
  HSC39714  Trifolium microcephalum D. E. Anderson, J. P. Smith 1971-6-28 - 1264 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC15145  Trifolium microcephalum J. W. Johnson 1962-5-13 1355 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  JEPS65965  Trifolium microcephalum W. L. Jepson 1902-6-20 1898 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  HSC38068  Trifolium microdon Thomas W. Nelson, Jane P. Nelson 1976-5-30 2639 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1130106  Trifolium obtusiflorum H. S. Yates 1936-6-23 5871 Humboldt 3 mi ne Scotia; Rohnerville Quad. Comment
  HSC23489  Trifolium pratense R. A. Vanbianchi 1971-9-24 89 Humboldt Comment
  HSC57902  Trifolium repens Gilbert Muth 1979-7-31 11496 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC1223540  Trifolium variegatum var. variegatum Joseph P. Tracy 1939-4-29 16238 Humboldt mouth of Slate Creek; Klamath River Comment
  UCD109897  Trifolium willdenovii Joseph P. Tracy 1933-6-24 12615 Humboldt North end of Big Lagoon. Comment
  HSC15194  Trifolium wormskioldii Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  UC201372  Trifolium wormskioldii Joseph P. Tracy 1918-7-3 4991 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  JEPS32135  Triglochin maritima Joseph P. Tracy 1933-8-22 12988 Humboldt mouth Eel River; mouth of Eel River 3 Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. Comment
  RSA239713  Triglochin maritima Larry E. DeBuhr 1973-4-23 998 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UC527822  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt at mouth of Little River Little River Comment
  JEPS86159  Trillium chloropetalum Wayne Roderick 1966-5-5 Humboldt n. of Bridgeville 609 Comment
  HSC70327  Trillium ovatum M. A. Baker 1980-6-8 1882 Humboldt Near Buck Flat. 1554 Comment
  UCR3521  Trillium ovatum David Whistler, H. M. Whistler 1964-7-31 640731- 9 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  SDSU11973  Trillium ovatum Leslie Hickson 1990-4-15 15 IV90F Humboldt Oak Street 0.5 miles north of Freshwater. Off the right side of the road under the Redwood tees. Eureka, Ca. Comment
  SEINET5722160 Image available Trillium ovatum David G. Forbes 1966-1 436 Humboldt 0.5 mile south of Weott on the Highway of the Giants.; Weott 30 Comment
  HSC98910  Trillium ovatum subsp. ovatum Cara Witte 2007-5-31 164 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  CAS-BOT-BC521251  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  RSA135459  Triodanis biflora Volney Rattan 1883-6-30 s.n. Humboldt Redwood Creek. Comment
  RSA298972  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie, and Bull Creek road, to Dyerville, South Fork Eel River. Comment
  UC169061  Triodanis perfoliata Harley P. Chandler 1901-6-16 1514 Humboldt Somes Bar North Coast Ranges, Klamath River (Klamath River) 426 Comment
  UC1334891  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-4-8 626 Humboldt 4.4 mi s Samoa; s of Samoa 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
  HSC59235  Triphysaria versicolor subsp. faucibarbata Clark L. Miller 1979-5-29 5153 Humboldt Arcata Bottoms Comment
  UC1222439  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1942-5-29 17089 Humboldt Eureka 6 Comment
  CAS-BOT-BC199618  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC199624  Trisetum canescens Joseph P. Tracy 1935-7-25 14235 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  RSA109293  Trisetum canescens H. E. Parks, S. T. Parks 1952-06 7551 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC38429  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1056 Humboldt 1 mi. W of Lord Ellis Summit Comment
  SEINET200948 Image available Trisetum cernuum Joseph P. Tracy 1920-5-30 5335 Humboldt Eureka. 61 Comment
  UC526696  Trisetum cernuum Joseph P. Tracy 1926-6-6 7557 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges 1066 Comment
  UC922032  Trisetum cernuum Joseph P. Tracy 1950-7-2 18962 Humboldt 6 mi ne Hawkins Bar (in woods at Fern Spring); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1103147  Trisetum flavescens Joseph P. Tracy 1917-7-1 4830 Humboldt Eureka; Northern Coast Ranges 0 Comment
  SEINET200770  Triteleia laxa Joseph P. Tracy 1927-5-30 8094 Humboldt Garberville 152 Comment
  RSA183021  Triteleia laxa Lee W. Lenz 1966-5-24 24657 Humboldt W of Berry Summit, US 299. Comment
  UC1222685  Triteleia peduncularis Joseph P. Tracy 1950-6-15 18770 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  SBBG25959  Tsuga heterophylla E. R. Blakley 1966-8-17 6798 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  CAS-BOT-BC73933  Turritis glabra Doris K. Kildale 1927-7-17 3761 Humboldt Big Creek. 792 Comment
  UC153975  Typha latifolia Joseph P. Tracy 1910-10-8 3168 Humboldt region about Humboldt Bay Brainard's Point; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC1196284  Umbellularia californica Joseph P. Tracy 1912-3-31 3570 Humboldt in valley of Mad River near Glendale; Northern Coast Ranges 30 Comment
  CAS-BOT-BC403928  Urtica dioica subsp. gracilis L. R. Abrams; R. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon south of Orick Comment
  HSC60134  Urtica dioica subsp. gracilis M. A. Baker 1977-5-1 277 Humboldt E of Humboldt State University. Comment
  UC30064  Vaccaria hispanica Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  UC32648  Vaccinium Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5651 Humboldt Hoopa Mt. Comment
  HSC7945  Vaccinium membranaceum J. P. Tracy 1936-8-7 15096 Humboldt Trinity Summit, head of Little Horse-Linto Creek 1372 Comment
  CAS-BOT-BC199312  Vaccinium ovatum Alice Eastwood 1907-4-21 40 Humboldt Port Trinidad Comment
  HSC12435  Vaccinium ovatum Gary J. Stebbins 1970-2-21 10 Humboldt Patricks Point State Park 38 Comment
  HSC90226  Vaccinium ovatum L. Watson, J. Meninga Mar 1991 20 Humboldt Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail Comment
  RSA1918  Vaccinium ovatum C. B. Wolf 1930-10-24 1017 Humboldt Along the Kamath River, 2 mi. below mouth of Salmon River. Comment
  RSA46850  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge near Blacksburg. Comment
  UC1121133  Vaccinium ovatum A. E. Wieslander 1931-5-21 214 Humboldt Kneeland China Flat Quad. Comment
  HSC41244  Vaccinium parvifolium Brad Klipfel 1974-5-27 386 Humboldt Horse Mountain Comment
  RSA50145  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata. 152 Comment
  SD257259  Vaccinium parvifolium Jim R. Shevock 1972-3-26 1470 Humboldt Along Highway 299. 366 Comment
  HSC7928  Vaccinium scoparium D. E. Anderson 1965-6-1 3758 Humboldt Horse Mtn., near ski lodge 1433 Comment
  HSC56072  Valeriana sitchensis subsp. sitchensis G. L. Clifton, Griswold 1979-7-31 11741 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC28044  Vancouveria hexandra Chris Gist 1971-6-19 6 Humboldt Jolly Giant Canyon, HSU, Arcata Comment
  HSC33018  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1973-7-5 98 Humboldt 1 mi. W of Tish a Tang Creek on Grogan Hill Rd., E of Hoopa 1524 Comment
  HSC42007  Vancouveria hexandra Tom Duebendorfer 1977-5-15 45 Humboldt 1.6 mi. E of junction of Old State 299 and Maple Creek Rd. Comment
  UC1196347  Vancouveria hexandra Joseph P. Tracy Jul 16 1930-Jul 19 1930 8968 Humboldt in fir forest near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC527825  Vancouveria hexandra Ira L. Wiggins 1932-6-12 5865 Humboldt 2 mi e Bayside (bank of Jacoby Creek); bank of Jacoby Creek Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  CAS-BOT-BC528853  Veratrum californicum Doris K. Kildale 1925-8-16 1179 Humboldt Trinity Summit Elk Horn Prairie, wet meadow 1524 Comment
  CDA39365  Veratrum californicum T. C. Fuller 1958-6-17 1713 Humboldt Mazepa Ranch, Wildcat Ridge. 0 Comment
  HSC100694  Verbena prostrata Carl C. Marshall Jul 1887 327 Humboldt Dry interior valleys. Comment
  HSC97638  Veronica americana Cara Witte 2007-5-31 160 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  HSC21223  Veronica arvensis William J. Ferlatte 1963-5-15 47 Humboldt Waste place near 11th and B Sts., Arcata Comment
  HSC21205  Veronica peregrina Anonymous 1957-4-27 126 Humboldt 1 mi. W of Honeydew Comment
  HSC78983  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. NW of the boat ramp 3 Comment
  JEPS29846  Veronica scutellata Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7836 Humboldt about 1 mi w of Carlotta (or about 0.5 mi e of Hydesville) Comment
  CDA41766  Veronica serpyllifolia subsp. humifusa P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Town of Fieldbrook. 0 Comment
  RSA800193  Vicia Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC15258  Vicia americana var. americana J. P. Tracy 1935-5-26 13908 Humboldt Iaqua 610 Comment
  HSC73151  Vicia americana var. americana M. A. Baker 1980-5-18 1304 Humboldt Near Black Mtn. 1006 Comment
  UC709401  Vicia americana var. americana Joseph P. Tracy 1939-7-9 16333 Humboldt Snow Camp 1402 Comment
  RSA168914  Vicia americana var. americana Joseph P. Tracy 1946-6-15 17569 Humboldt Green Point, west of Redwood Creek on Trinity Highway. 457 Comment
  UC33398  Vicia americana var. americana W. C. Blasdale 1896-6-7 Humboldt Graham's Comment
  RSA293198  Vicia angustifolia J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  POM68420  Vicia gigantea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC15269  Vicia gigantea C. O. Baker 1962-5-7 33 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  PASA271  Vicia sativa Frank W. Peirson 1926-7-13 Humboldt Mad River, vicinity of Blue Lake Comment
  UC1197471  Vicia sativa subsp. sativa Joseph P. Tracy 1915-6-6 4651 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  UC1198443  Viola adunca Joseph P. Tracy 1927-4-24 7943 Humboldt Table Bluff; Northern Coast Ranges 91 Comment
  CAS-BOT-BC263953  Viola adunca V. Rattan 1882-6-1 s.n. Humboldt Kneeland RIver Comment
  CHSC57460  Viola cuneata L. P. Janeway 1984-6-17 844 Humboldt On ridge east of Horse Mountain. 1432 Comment
  RSA256721  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC19274  Viola cuneata Harley P. Chandler June, 1901 1297 Humboldt Hupa Indian Reservation; North Coast Ranges 609 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
  HSC99356  Viola glabella K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 5 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC536491  Viola glabella Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC536496  Viola glabella A. M. Vollmer; L. Beane 1951-6-8 134 Humboldt Grizzly Camp, State Hwy 36 Comment
  HSC48637  Viola glabella Mark Flippo 1978-5-21 81 Humboldt USFS Rd. 8N20 Comment
  UC1761969  Viola glabella Joseph P. Tracy 1937-7-2 15408 Humboldt Trinity Summit, head of Hors-Linto Creek 1371 Comment
  HSC21866  Viola hallii W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  HSC101993  Viola macloskeyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 892 Humboldt Patterson Meadows 1555 Comment
  HSC83417  Viola ocellata R. N. Raynor 1935-4-15 Humboldt Fort Seward Comment
  UC164811  Viola ocellata Joseph P. Tracy 1908-6-27 2685 Humboldt near head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  UC1618240  Viola praemorsa subsp. linguifolia Barbara Ertter, Thomas J. Delendick 1987-5-16 6928 Humboldt Vista point west of Berry summit on Hwy 299. Near seepage on N side of road 914 Comment
  HSC32282  Viola purpurea subsp. purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5615 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC1198436  Viola sempervirens Joseph P. Tracy 1933-3-26 10938 Humboldt Big Lagoon 30 Comment
  UC201299  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Campbell's Comment
  SEINET200824 Image available Viola sheltonii J. P. Tracy 1913-6-17 4187 Humboldt Buck Mountain near the summit Comment
  CAS-BOT-BC203051  Vitis californica Doris K. Kildale 1926-7-25 2431 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  UCD60331  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt Along highway in Blue Lakes. Comment
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Jun 14 2012
  SEINET10918233  Vitis californica Unknown 1988-7-25 Anonymous s.n Humboldt Hwy Am [P--], Chestnut & Drew Comment
  HSC9836  Vulpia bromoides J. A. Waller 1965-5-16 47 Humboldt Open field near Big Lagoon. Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  UC187308  Vulpia microstachys var. microstachys Joseph P. Tracy 1902-6-3 1672 Humboldt near Fruitland Comment
  HSC65449  Vulpia myuros J. P. Smith 1973-5-26 6796 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC196967  Vulpia myuros var. hirsuta Joseph P. Tracy 1915-5-23 4640 Humboldt Eureka; Northern Coast Region 0 Comment
  CHSC68557  Whipplea modesta Vernon H. Oswald 1997-4-29 8356 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. On the edge of the trail. 0 Comment
  HSC20445  Whipplea modesta John A. Dubois 1962-5-12 5 Humboldt 20 mi. E of Arcata 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
  HSC97495  Whipplea modesta Cara Witte 2007-5-29 133 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  HSC20442  Whipplea modesta Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  UC582643  Wyethia angustifolia Joseph P. Tracy 1930-7-27 8898 Humboldt open grassy hills Northern Coast Ranges, Bear River Ridge 609 Comment
  UCD137004  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  UC1134688  Xerophyllum tenax A. E. Wieslander 1931-5-19 208 Humboldt near Orleans (Klamath National Forest); Klamath National Forest Comment
  UC1198221  Xerophyllum tenax Joseph P. Tracy 1933-7-11 12671 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC527077  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  CAS-BOT-BC527083  Xerophyllum tenax L. R. Abrams No date on lable. 7096 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC21901  Zannichellia palustris D. E. Anderson 1961-9-2 1760 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC39225  Zigadenus micranthus D. E. Anderson, J. P. Smith 1971-7-6 1288 Humboldt Horse Mtn. Comment
  HSC62988  Zostera marina David Wheeler 1979-4-22 78 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment



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