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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC102514  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1500 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55267  Abies concolor Overton, Butler 1979-8-2 12634 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  HSC73215  Abies procera Gail Newton 1980-6-24 603 Humboldt Near Ladder Rock 1570 Comment
  CAS-BOT-BC383848  Abronia latifolia W. R. Dudley 1899-6-1 s.n. Humboldt Samoa Comment
  RSA0025093  Abronia latifolia P. A. Munz 1954-7-25 19867 Humboldt Humboldt Lighthouse south of Samoa. Comment
  BLMAR389  Abronia umbellata subsp. breviflora Jennifer Anthony-Wheeler 2004-10-10 389 Humboldt Samoa/manilla dunes, Due west of water line tower number77 3 Comment
  CDA40632  Acaena novae-zelandiae E. C. Whitney 1966-7-28 s.n. Humboldt Mather prop., Simpson Lumber Co., Fieldbrook. 0 Comment
  CAS-BOT-BC330549  Acer circinatum Harley P. Chandler 1901-6-1 1283 Humboldt North Coast Ranges. Hupa Indian Reservation 1097 Comment
  HSC98921  Acer glabrum var. torreyi Cara Witte 2007-6-5 211 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC2808  Acer macrophyllum A. H. Sartain 1964-4-25 Humboldt 6 mi. W of Willow Creek on Hwy. 299 Comment
  HSC41320  Acer macrophyllum Brad Klipfel 1974-9-2 527 Humboldt Horse Mtn. Comment
  CAS-BOT-BC28579  Achillea millefolium Ashley Colt Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC28588  Achillea millefolium David D. Keck 1938-8-5 4765 Humboldt Clam Beach Comment
  HSC102172  Achillea millefolium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1084 Humboldt Patterson Meadows 1566 Comment
  HSC48766  Achillea millefolium Brad Klipfel 1973-6-10 102 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73648  Achillea millefolium M. A. Baker 1980-7-22 3117 Humboldt Near Grogan Hole. 1676 Comment
  HSC36212  Achillea millefolium John Rehling 1975-9-26 108 Humboldt Near Alliance Rd. Comment
  HSC4547  Achillea millefolium H. E. Parks, S. T. Parks Aug 1943 24246 Humboldt Egg Point, Trinidad 122 Comment
  RSA50430  Achillea millefolium var. arenicola G. R. Campbell 1949-6-28 s.n. Humboldt Collected near pool on Administration Grounds of Botanic Gardens, grown under prop. No. 5487 (seed collected by P. C. Everett, July 20, 1947, on coastal sand dunes, mouth of little river, along hwy 101, north of Eureka) Comment
  UC203890  Achlys californica Joseph P. Tracy 1918-5-28 4951 Humboldt High Prairie on Bald Mt. Northern Coast Ranges, Bald Mt. 1066 Comment
  SFV5403  Achlys triphylla J. Turner, F. M. Ball 1962-7-10 s. n. Humboldt East Fork Willow Creek Forest Camp. Highway 299 about 5 miles west of Willow Creek. 457 Comment
  UCD94992  Achlys triphylla subsp. triphylla W. C. Overton Jr. 1980-4-27 s.n. Humboldt Grizzly Creek Redwoods State Park, southeast of Fortuna on State Highway 36. Along the Van Duzen River. Comment
  RSA10033  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-17 10667 Humboldt Trinity Summit, Ridges east of Corral Prairie 1829 Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  BLMAR183  Acmispon brachycarpus Donald Hazlett 1994-6-7 183 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1222584  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt n.e. side of top Grouse Mt. 1524 Comment
  HSC73766  Aconogonon davisiae Gail Newton 1980-7-24 1772 Humboldt Near Somes Mtn. 1615 Comment
  HSC55739  Actaea rubra G. L. Clifton, Griswold 1979-7-26 10241 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  UC1196185  Actaea rubra Joseph P. Tracy 1937-7-2 15410 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC37414  Adiantum aleuticum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 508 Humboldt Along Lost Man Creek. 38 Comment
  JEPS336  Adiantum aleuticum W. L. Jepson 1932-7-26 16412 Humboldt Bull Creek Comment
  UC203315  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  RSA67622  Adiantum aleuticum P. A. Munz 1951-7-15 16547 Humboldt Racoon Creek. 305 Comment
  RSA137319  Adiantum jordanii I. L. Wiggins 1957-6-21 14137 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  HSC5638  Ageratina occidentalis D. E. Anderson 1965-9-5 4094 Humboldt Along Mad River, ca. 3 miles south of Blue Lake Comment
  SD62068  Agoseris apargioides var. maritima Darley F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  UC205185  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1919-9-23 5284 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC75954  Agoseris grandiflora Overton, Butler 1979-7-24 9734 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  RSA167302  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt Grouse Mountain: Open glade where road crosses sides of the Friday Ridge, about 1 mile north of Friday's Camp Comment
  HSC56444  Agoseris heterophylla Griswold, Butler 1979-7-12 7191 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1199481  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1918-7-5 5024 Humboldt common in grassy places White Thorn Valley; Northern Coast Ranges 304 Comment
  UC165751  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1908-6 2735 Humboldt opposite, in valley of Van Duzen River Buck Mountain; Northern Coast Ranges, Van Duzen River 762 Comment
  UC449621  Agoseris retrorsa Joseph P. Tracy 1912-7-31 3947 Humboldt near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  RSA183627  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  CAS-BOT-BC127288  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt Northern Coast Ranges. White Thorn Valley. 304 Comment
  CAS-BOT-BC127294  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC127295  Agrostis exarata 1933-7-20 12809 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC98510  Agrostis exarata Cara Witte 2008-8-6 1005 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  RSA25802  Agrostis exarata C. B. Wolf 1941-7-28 4344 Humboldt Big Lagoon, south side and W. of Redwood Highway. 6 Comment
  UC1145056  Agrostis exarata Joseph P. Tracy 1947-6-28 17749 Humboldt Larrabee Valley 731 Comment
  UC181242  Agrostis exarata Joseph P. Tracy 1913-7-13 4359 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC204711  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt White Thorn Valley, in dried up ditch Northern Coast Ranges, White Thorn Valley 304 Comment
  UC526886  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Big Lagoon North Coast Region 6 Comment
  POM207005  Agrostis hallii Davy Blasdale 1899-05 5873 Humboldt Martins Ferry. Comment
Read comments
Dec 1 2014
  SEINET3916558  Agrostis hallii James Payne Smith Jr 1977-7-3 9257 Humboldt Six River National Forest. Along Forest Service Road 13NO1, 3 miles from its junction with State Route 36.; 0 549 Comment
  UC576314  Agrostis hallii H. S. Yates 1936-6-17 5698 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain 792 Comment
  UCD52683  Agrostis hallii J. I. Mallory 1955-9-17 124 Humboldt one mile west of McClellan Ranch. 304 Comment
  CHSC114091  Agrostis idahoensis Jennifer Buck; Danielle Roach 2009-8-19 SFM 06 C Humboldt Kerlin Fen, South Fork Mountain; UTM Zone 10N, 453899E, 4494304N. 1633 Comment
  HSC58802  Agrostis idahoensis G. L. Clifton, Griswold 1979-7-31 11678 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC89897  Agrostis microphylla Leonel Arguello 1989-7-7 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi W of Arcata, south-west quadrant of Fernstrom-Root parcel. Comment
  HSC98859  Agrostis oregonensis Cara Witte 2008-8-5 990 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  HSC49053  Agrostis pallens Thomas Nelson, Jane Nelson 1978-7-3 4414 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC138635  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Region about Humboldt Bay. Mouth of Elk River. 6 Comment
  HSC8830  Agrostis thurberiana J. P. Tracy 1930-7-16 8931 Humboldt South Fork Mountain: McKay camp. 1677 Comment
  UC526873  Agrostis thurberiana Joseph P. Tracy Jul 16 1930-Jul 19 1930 8989 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET14062595  Aira caryophyllea M. A. Baker 1980-5-17 1280 Humboldt Black Mtn. Comment
  HSC40342  Aira praecox Linda M. Barker 1976-4-30 1411 Humboldt 3 mi. W of Arcata Comment
  SBBG88771  Alisma triviale A. Keedy 1988-9-18 9 Humboldt fresh water pond A, Arcata Salt Marsh Project, Humboldt Bay Comment
  HSC60371  Alisma triviale Terry Roth 1979-5-29 101 Humboldt Arcata, at the end of H St. 0 Comment
  HSC98646  Allium amplectens Cara Witte 2007-6-7 233 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1198195  Allium amplectens Joseph P. Tracy 1927-5-14 8004 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC462974  Allium bolanderi L. R. Abrams 1918-6-15 7115 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC79066  Allium bolanderi var. bolanderi D. K. Imper 1984-6-6 Humboldt USFS Rd. 12N20 near Bald Mtn. Comment
  UC1198193  Allium bolanderi var. mirabile Joseph P. Tracy 1913-6-23 4278 Humboldt near summit on ridge between Van Duzen River and Mad River; Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  HSC103255  Allium campanulatum John McRae 2014-6-3 Humboldt Six Rivers National Forest, Black Lassic Quad, Mt. Lassic , Lassics Botanical and Geological Area. 1768 Comment
  HSC76218  Allium falcifolium Overton, Butler 1979-7-24 9708 Humboldt Near Black Rock 1554 Comment
  NY247883  Allium stenanthum V. K. Chesnut 1888-7-19 s.n. Humboldt Pilot Ridge Comment
  CAS-BOT-BC476626  Allium unifolium A. M. Vollmer; L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road Comment
  UC1222284  Alnus incana subsp. tenuifolia Joseph P. Tracy 1950-8-8 19286 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC774997  Alnus incana subsp. tenuifolia Carl B. Wolf 1937-8-13 9268 Humboldt 12 mi e Hoopa Valley (on new road toward Trinity Summit); North Coast Range 1676 Comment
  CAS-BOT-BC170943  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt Dyerville Brdige on South Fork of Eel River 45 Comment
  SEINET5536121 Image available Alnus rhombifolia Joseph P. Tracy 1950-1 19375 Humboldt Klamath River near Slate Creek 122 Comment
  UC213001  Alnus rhombifolia Joseph P. Tracy 1919-9-27 5303 Humboldt Willow Creek Northern Coast Ranges (near its mouth, (creek is a tributary of Trinity River)) 152 Comment
  CAS-BOT-BC169544  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt Mattole River, near Petrolia 15 Comment
  CAS-BOT-BC169545  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt Mattole River, near Petrolia 15 Comment
  HSC37963  Alnus rubra Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  POM160842  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. 1829 Comment
  UC503082  Alnus viridis subsp. sinuata Joseph P. Tracy 1932-7-15 10604 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC138147  Alopecurus aequalis var. aequalis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley place, Orleans region. Comment
  UC1103313  Alopecurus geniculatus Joseph P. Tracy 1942-6-2 17091 Humboldt at R.R. trestle Loleta 9 Comment
  UC1222884  Ambrosia artemisiifolia Joseph P. Tracy 1950-9-22 19379 Humboldt 3 mi sw Orleans Comment
  CAS-BOT-BC13706  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt At mouth of Little River Comment
  HSC35628  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2141 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  UC665537  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  RSA264507  Ambrosia chamissonis var. chamissonis H. E. Parks 1941-09 24214 Humboldt Mouth of Little River Comment
  HSC70328  Amelanchier alnifolia M. A. Baker 1980-6-8 1883 Humboldt Near Buck Flat. 1554 Comment
  HSC18529  Amelanchier alnifolia var. semiintegrifolia F. B. Plett 1963-4-9 16 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC71057  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3391 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  RSA183634  Amelanchier florida D. E. Anderson 1964-4-24 3541 Humboldt 0.5 mile from Hwy 299, on Titlow Hill road. Comment
  CAS-BOT-BC143011  Amelanchier utahensis John Thomas Howell; Alice Eastwood 1937-6-23 4800 Humboldt Little Van Duzen River Comment
  CAS-BOT-BC137867  Ammophila arenaria Dziekanowski; Dunn; Bennett 1976-8-6 2504 Humboldt In the vicinity of a state park on the beach opposite McKenleyville. 3 Comment
  CHSC33078  Ammophila arenaria J. P. Smith; T. W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC494005  Amsinckia H. E. Parks, J. P. Tracy 1930-5-25 881 Humboldt near Bridgeville Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  UC1239646  Amsinckia lunaris Joseph P. Tracy 1930-5-25 8724 Humboldt near Bridgeville; Northern Coast Ranges 152 Comment
  SBBG44954  Anaphalis margaritacea C. B. Wolf 1927-8-30 Humboldt 2 mi S of Petrolia on Mattole River, near where road crosses river Comment
  HSC27042  Anaphalis margaritacea Brad Klipfel 1973-8-25 286 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC102555  Anemone deltoidea M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1543 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC18009  Anemone deltoidea H. E. Parks, S. T. Parks May 1930 748 Humboldt Along Van Duzen River Comment
  SBBG2107  Anemone deltoidea H. and M. Dearing 1933-5-16 360 Humboldt Weott Comment
  JEPS60507  Anemone deltoidea W. L. Jepson 1902-6-22 1913 Humboldt Pepperwood Comment
  RSA304843  Anemone deltoidea James R. Shevock 1971-5-30 681 Humboldt Biants Ave, Humboldt St. Park. 152 Comment
Read comments
Oct 20 2009
  SD81298  Anemone deltoidea Darley F. Howe 1970-5-30 4060 Humboldt Forest east of Orick 395 Comment
  HSC41236  Anemone oregana var. oregana Brad Klipfel 1974-5-8 327 Humboldt Horse Mtn., to the NW below the towers Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC99580  Angelica genuflexa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 245 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
  JEPS14170  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  JEPS14171  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC1197382  Angelica genuflexa Joseph P. Tracy 1946-8-25 17635 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  CAS-BOT-BC221418  Angelica hendersonii L. R. Abrams 1916-7-18 6138 Humboldt At Trinidad Comment
  JEPS14103  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  UC582636  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC211057  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Near Samoa. Region about Humboldt Bay 152 Comment
  POM318530  Angelica lucida Patricia Wilder 1968-8-21 4376 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC1103414  Angelica lucida Joseph P. Tracy 1914-10-4 4632 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  HSC101671  Angelica tomentosa Cara Witte 2008-8-6 999 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  JEPS14220  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  JEPS14221  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC271452  Anisocarpus madioides Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  CAS-BOT-BC271491  Anisocarpus madioides Doris K. Kildale 1927-5-17 3184 Humboldt Fish Creek near Garberville Comment
  HSC57616  Antennaria racemosa G. L. Clifton, Griswold 1979-7-25 10740 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC582649  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit (near Ranger Station) Trinity Summit 1828 Comment
  CHSC105172  Antennaria suffrutescens B. Castro; L. P. Janeway 1996-8-3 704 Humboldt Six Rivers NF, near Horse Mtn. Along Titlow Hill Rd (Rd #1), on flat ridgetop. 1469 Comment
  HSC4650  Antennaria suffrutescens D. E. Anderson 1965-6-1 3771 Humboldt On ridge along Friday Hill Rd., about 2 mi. NE from its junction with Titlow Hill Rd. 1159 Comment
  UC582650  Antennaria suffrutescens Joseph P. Tracy 1933-7-11 12673 Humboldt Horse Mountain 1432 Comment
  HSC4670  Anthemis cotula Lincoln Constance 1934-5-27 694 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  CAS-BOT-BC137739  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mile esat of Freshwater (Garfield), on Kneeland Road. Comment
  HSC8944  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Humboldt State University campus. Comment
  HSC8953  Anthoxanthum odoratum D. E. Anderson 1962-3-31 1957 Humboldt Coastal area of Prairie Creek State Park, back of sand dunes Comment
  UC1056038  Anthoxanthum odoratum H. E. and S. T. Parks 1952-4 24444 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove 60 Comment
  UCD56164  Anthoxanthum odoratum H. L. Person 1932-5-10 s.n. Humboldt Arcata. 45 Comment
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  UC204117  Aphanes occidentalis Joseph P. Tracy 1918-5-1 4903 Humboldt Kneeland Prairie Northern Coast Ranges (towards McBrides) 762 Comment
  UC176867  Apocynum cannabinum Joseph P. Tracy 1912-7-26 3838 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  UC154172  Apocynum cannabinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5896 Humboldt near Requa Comment
  RSA668408  Aquilegia formosa Thomas W. Stark 1967-7-24 100 Humboldt 1/4 mile W of rt 101, 3 miles N of Trinidad Head. 91 Comment
  POM118664  Aquilegia formosa var. truncata Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  HSC58213  Arabis glabra Walter Overton 1979-8-1 12342 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC57407  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-26 10162 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  RSA249429  Arabis sparsiflora var. subvillosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC70246  Arabis subpinnatifida M. A. Baker 1980-6-8 1912 Humboldt Near Buck Flat. 1554 Comment
  HSC72985  Aralia californica M. A. Baker 1980-5-17 1191 Humboldt Near Le Perron Peak 792 Comment
  UC1408964  Aralia californica Robert F. Thorne and P. Everett 1965-8-5 35137 Humboldt below summit Mt. Chamisal 579 Comment
  LA41458  Arbutus menziesii Carl Epling; 1933-8-24 sn Humboldt Richardson Grove 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
  RSA167438  Arbutus menziesii Joseph P. Tracy 1951-5-20 19401 Humboldt Near Ashfield Ridge. Comment
  UC915722  Arbutus menziesii W. L. Jepson 1903-6-23 50 Humboldt near Briceland Comment
  POM367168  Arbutus menziesii N. R. Zabriskie, Walter Zabriskie, J. Zabriskie 1968-8-22 151 Humboldt East of Honeydew on road from Humboldt State Park to Cape Mendocino. 915 Comment
  BLMAR53  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1994-2-14 53 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  CAS-BOT-BC23739  Arctostaphylos columbiana C. Hart Merriam 1921-8-18 s.n. Humboldt Big Lagoon Comment
  CAS-BOT-BC23800  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23812  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  HSC101666  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 2011-4-23 13127 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC68133  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  JEPS38947  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  JEPS38951  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt summit of barren ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  RSA622688  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27676 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198663  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13138 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC154033  Arctostaphylos columbiana J. P. Tracy 1909-8-22 3079 Humboldt vicinity of Eureka 0 Comment
  UC21817  Arctostaphylos columbiana J. Burtt Davy 1899-6-12 5459 Humboldt near Fruitland; North Coast Ranges Comment
  UC924266  Arctostaphylos columbiana H. S. Reed 1941-7-27 Humboldt coastal bluffs Orick Comment
  RSA31954  Arctostaphylos columbiana var. tracyi A. A. Heller 1937-6-12 15918 Humboldt Along the road parallelling the ocean at Bishop ine Lodge, 3 miles north of Trinidad. Comment
  RSA246945  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, Percy C. Everett 1965-8-5 35133 Humboldt Peak of Mt. Chamisal. 701 Comment
  JEPS38950  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585954  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14370 Humboldt Salmon Summit 1950 Comment
  CAS-BOT-BC40071  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2587 Humboldt On road between Orick & Martin's Ferry. Comment
  CAS-BOT-BC46632  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain. 1432 Comment
  SEINET2028710 Image available Arctostaphylos tracyi H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC43997  Arctostaphylos uva-ursi Harley P. Chandler 1901-5-1 1133 Humboldt Humboldt Bay 3 Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  POM212078  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  RSA152314  Arctostaphylos uva-ursi Joseph P. Tracy s.n. Humboldt Eureka. 46 Comment
  UC1073330  Arctostaphylos uva-ursi George B. Rossbach 1955-6-10 380 Humboldt sandy point off Eureka; Fairhaven Comment
  UC180220  Arctostaphylos uva-ursi Joseph P. Tracy 1914-8-30 4594 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  RSA337436  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  CDA6803  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  JEPS79810  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Brett Hole Trinity summit, Brett Hole (Head of) 1828 Comment
  UC1115829  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1939-4-29 16243 Humboldt at mouth of State Creek Klamath River, State Creek 121 Comment
  SEINET3918774  Aristida adscensionis J. I. Mallory 1955-9-17 122 Humboldt North-northwest 3/8 miles of headquarters, Cottrell Ranch. Quad. 29A-2.; 0 747 Comment
  HSC16904  Armeria maritima subsp. californica R. J. Vernimen 1963-4-27 41 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC48067  Armeria maritima subsp. californica Thomas W. Nelson 1978-4-23 3879 Humboldt N of Samoa Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  CHSC23908  Armeria maritima var. californica N. Dennis; D. E. Anderson 1965-6-8 108 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sand dunes and flats along the ocean. Comment
  SEINET2029493 Image available Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1433 Comment
  HSC34913  Arnica cordifolia Thomas W. Nelson, Jane P. Nelson 1975-5-24 1852 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC82427  Arnica discoidea Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans Comment
  HSC4695  Arnica discoidea Lincoln Constance 1934-7-19 910 Humboldt Near the summit of Grasshopper Mtn.; south of Bull Creek Flat, south fork of the Eel River 915 Comment
  HSC58598  Arnica latifolia G. L. Clifton, Griswold 1979-7-25 10755 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  HSC41002  Artemisia douglasiana J. O. Sawyer 1975-10-17 2713 Humboldt S slopes of N Trinity Mtn. 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
  BLMAR665  Artemisia douglasiana Jennifer Wheeler 2012-6-12 665 Humboldt King range, strawberry rock grazing allotment 253 Comment
  UC196572  Artemisia dracunculus Joseph P. Tracy 1916-9-5 4767 Humboldt 4 mi above mouth of South Fork Eel River 60 Comment
  CAS-BOT-BC90867  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  UCSB9161  Artemisia pycnocephala Parks, H.; Parks, S. 1952-06 Humboldt Samoa Comment
  RSA15560  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  CAS-BOT-BC97243  Artemisia suksdorfii Carl B. Wolf 1927-8-29 1220 Humboldt [Devil's] Devils Gate, south of Cape Mendocino Comment
  POM51270  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  CAS-BOT-BC453344  Aruncus dioicus var. vulgaris C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC453345  Aruncus dioicus var. vulgaris Doris K. Kildale 1930-6-1 9747 Humboldt Klamath River at Weitchpec Comment
  CAS-BOT-BC400527  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC102553  Asarum caudatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1541 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC24387  Asarum caudatum J. O. Sawyer 1970-6-24 2257 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC58015  Asarum caudatum G. L. Clifton 1979-7-31 11818 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  POM118567  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  POM318583  Asarum caudatum Patricia Wilder 1968-8-22 4421 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  UC55947  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Immediate vicinity of Eureka Comment
  UCR179286  Asarum caudatum R. G. Swinney 1968-3-28 232 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC3265  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Forest near Orick Comment
  SEINET12094123  Asarum caudatum F. H. Utech 1988-1 88 -294 Humboldt 1.5 mi N of Orick on US 101 & 0.5 mi SE on Bald Hills Road 400 Comment
  CHSC97953  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hw. 96, 1.9 mi. no. of Willow Creek. Comment
  HSC99498  Asarum hartwegii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 158 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  HSC98884  Asclepias speciosa Cara Witte 2007-7-3 406 Humboldt White Oak Opening. 1242 Comment
  UC249520  Asclepias speciosa Joseph P. Tracy 1922-9-3 6114 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  RSA47105  Asclepias speciosa Doris K. Kildale 1925-7-5 s.n. Humboldt Willow Creek Flat 152 Comment
  UC1222242  Asclepias speciosa Joseph P. Tracy 1950-8-20 19321 Humboldt 8 mi below Orleans (at Big Bar, Klamath River near Slate Creek); Klamath River, Big Bar 121 Comment
  CAS-BOT-BC65946  Aspidotis densa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC1050  Aspidotis densa Francis Winter 1960-4-24 Humboldt 8 mi. NE of Redwood Creek Ranch 610 Comment
  HSC67193  Aspidotis densa Thomas W. Nelson 1980-6-10 5418 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  RSA417636  Aster chilensis C. B. Wolf 1937-9-14 9355 Humboldt Redwood Highway 4 mi N of Loleta. 8 Comment
  SEINET196546  Aster chilensis Ynez Whilton Winblad 1941-6-24 Humboldt Between Garberville and Pepperwood. Comment
  JEPS16849 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  RSA112182  Astragalus gambelianus H. D. Ripley, R. C. Barneby, F. C. Ripley Jr. 1945-6-16 6822 Humboldt NW of Harris. 884 Comment
  JEPS54822  Astragalus pycnostachyus var. pycnostachyus W. L. Jepson 1902-8-4 2143 Humboldt Cape Mendocino to Petrolia (ocean shore); Ocean shore, Cape Mendocino to Petrolia Comment
  JEPS118178  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  HSC104349  Astragalus umbraticus James Regan, Humboldt Redwood Co., LLC 2004-1 12 Humboldt Bald Hills, Weitchpec Road Comment
  HSC75271  Asyneuma prenanthoides J. O. Sawyer, D. A. Thornburgh 1980-9-9 4085 Humboldt Mill Creek Lake and surrounding meadows Comment
  RSA413349  Athyrium filix-femina subsp. cyclosorum R. Whittaker, W. A. Niering 1963-6-14 491 Humboldt Humboldt Redwoods, Weott Comment
  JEPS35158  Athyrium filix-femina var. cyclosorum Milo S. Baker 1923-7-23 123 Humboldt near Ferndale Comment
  UC922658  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  CDA10384  Baccharis pilularis C. R. Tower Aug 1951 Humboldt General along Redwood Highway, Coast country. 0 Comment
  HSC13133  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-9 33 Humboldt HSC campus, Arcata, near Fisheries water tank on Union St. Comment
  CHSC68559  Bellardia trixago Vernon H. Oswald 1997-4-29 8361 Humboldt Somoa Dunes Recreation Area at the south end of the North Spit separating Hunbolt Bay from the ocean. Near seal level. Coastal Dunes. Comment
  HSC37917  Bellis perennis Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC39790  Bellis perennis Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  HSC12595  Bellis perennis C. Kline 1970-11-9 61 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  HSC100357  Bensoniella oregana T. Jimerson, S. L. Birch 1980-7-11 975 Humboldt Snow Camp Mountain, Rooster Rock. 1280 Comment
Read comments
Nov 6 2018
  UC1051579  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  HSC24379  Berberis aquifolium J. O. Sawyer 1970-6-24 2258 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC40904  Berberis aquifolium var. aquifolium J. O. Sawyer 1970-4-24 2192 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  UCD114326  Boechera divaricarpa Joseph P. Tracy 1932-7-11 10396 Humboldt Trinity Summit. Open ground at corral prairie, Klamath Mountains. 1524 Comment
  HSC100574  Boisduvalia densiflora Carl C. Marshall Jul 1887 398 Humboldt Spruce Grove. Comment
  POM256473  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16004 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  RSA182047  Boisduvalia stricta Joseph P. Tracy 1918-7-6 5050 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76260  Boykinia occidentalis Teresa Prendusi 1981-7-7 119 Humboldt Near Slate Creek Butte. 1158 Comment
  UC1409117  Boykinia occidentalis Robert F. Thorne and P. Everett 1965-8-5 35127 a Humboldt Wailaki Recreation Site 518 Comment
  UC14495  Boykinia occidentalis W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC581796  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville 198 Comment
  HSC100308  Briza maxima J. P. Smith 2011-5-4 13146 Humboldt New Navy Base Rd. SW of Samoa. 3 Comment
  HSC104048  Briza maxima E. R. Fyer 2015-4-26 20 Humboldt At turnout off Samoa Blvd. 1 Comment
  HSC69631  Briza maxima R. Kalal 1980-6-3 28 Humboldt 0.25 mi. N of Hwy. 299 at Essex turnoff 15 Comment
  CAS-BOT-BC145568  Briza minor Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC187216  Briza minor Joseph P. Tracy 1911-7-5 3328 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  SEINET4344866  Briza minor W. D. Billings 1940-6-22 1347 Humboldt 1/2 mile N. of Trinidad Comment
  SEINET200692  Brodiaea capitata Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley. 701 Comment
  CAS-BOT-BC486506  Brodiaea stellaris Volney Rattan 1882-6-1 s.n. Humboldt Unspecified 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
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  UC1145186  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville; Wolverton Gulch 91 Comment
  UC185779  Bromus carinatus var. maritimus Joseph P. Tracy 1912-6-9 3658 Humboldt Alton; Northern Coast Ranges, Alton 30 Comment
  UC1145143  Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt along Eel River from South Fork to Scotia, Holmes Flat Holmes Flat; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  HSC9173  Bromus hordeaceus C. S. Chavez 1965-3-28 14 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  CAS-BOT-BC162213  Bromus orcuttianus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  HSC99102  Bromus sterilis Cara Witte 2007-5-23 90 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC1131259  Bromus sterilis H. S. Yates 1936-6-17 5714 Humboldt near Burr Valley 914 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
  UC1145178  Bromus tectorum Joseph P. Tracy 1942-5-16 17330 Humboldt between Miranda and Garberville 152 Comment
  HSC58758  Bromus vulgaris Overton, Butler 1979-7-26 9932 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  RSA46798  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McClellan Mountain. Comment
  SEINET200618 Image available Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt Near Panther Gap on road between Mattole and Bull Creek. 823 Comment
  UCR39782  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Point Delgada Q., Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  HSC3804  Callitriche trochlearis Rollin Sparrowe 1962-5-16 3 Humboldt In ditch next to road Comment
  CAS-BOT-BC80389  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mountain 579 Comment
  HSC1286  Calocedrus decurrens Elrid H. Spinas 1948-5-22 39 Humboldt Horse Mtn. Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  HSC15342  Calochortus tolmiei Elrid H. Spinas 1948-6-16 58 Humboldt Horse Mtn. Comment
  HSC96227  Calochortus tolmiei M. Lindquist, C. Riley 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  CAS-BOT-BC494355  Calochortus tolmiei Doris K. Kildale 1927-5-13 3248 Humboldt Redwood creek at Berngs' 289 Comment
  SEINET6879028  Calochortus tolmiei W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC1197687  Calochortus tolmiei Joseph P. Tracy 1913-6-10 4086 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1222549  Calochortus tolmiei Joseph P. Tracy 1951-5-6 19394 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC201997  Calochortus vestae Joseph P. Tracy 1918-7-29 4513 Humboldt Eureka Northern Coast Ranges Comment
  HSC37699  Calypso bulbosa J. D. Ackerman 1976-5-29 758 Humboldt Lanphere-Christensen Dunes Nature Conservency, W of Arcata, near Lanphere's former residence. Comment
  SEINET12074106  Calypso bulbosa J. P. Tracy 1950-1 Humboldt Comment
  HSC101987  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 886 Humboldt Patterson Meadows 1566 Comment
  HSC55033  Calyptridium monospermum Overton, Butler 1979-7-31 11473 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC99011  Calyptridium monospermum Cara Witte 2008-7-1 789 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  SBBG5774  Calystegia occidentalis subsp. occidentalis H. and M. Dearing 1939-5-24 Humboldt Pass Rd, Dyerville to Mattole Comment
  CDA38662  Calystegia silvatica David Juliano 2010-6-17 PDR# 1535024 Humboldt Eureka. 0 Comment
  HSC38379  Calystegia soldanella Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC6367  Calystegia soldanella J. R. Woodside 1963-5-11 6 Humboldt 1.25 mi. N of Fairhaven Comment
  POM278808  Calystegia soldanella Lyman Benson 1928-7-10 444 Humboldt Clam Beach, Trinidad. 9 Comment
  HSC59560  Calystegia soldanella Rick Lundquist 1979-5-16 89 Humboldt N spit, across from the Samoa boat ramp N of US Coast Guard Station 0 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
  UC153969  Camassia quamash J. P. Tracy 1910-5-15 3135 Humboldt immediate vicinity of Eureka 0 Comment
  RSA0116953  Camassia quamash subsp. linearis Frank W. Peirson 1923-7-11 3681 Humboldt 7 miles N of Arcata. Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC59194  Camissonia cheiranthifolia Terry Roth 1979-4-21 16 Humboldt 1 mi. down the S Jetty Rd. 3 Comment
  UCR122368  Camissonia cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC160243  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Ira L. Wiggins 1930-7-7 4670 Humboldt Near Samoa Comment
  SEINET10462967  Campanula prenanthoides Stephen S. Tillett 1956-7-6 Tillett 612 Humboldt Area cleared by logging and fire, south slope along Bar Shanty Road, 5 miles from Orleans 488 Comment
  SEINET10462986  Campanula prenanthoides Ira L. Wiggins 1930-7-22 Wiggins 4690 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC34270  Campanula scouleri K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC74737  Campanula scouleri Gail Newton 1981-7-23 2280 Humboldt Near Bug Creek Butte. 1350 Comment
  SEINET10463418  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt NR SNOW CAMP MTN, IAQUA BUTTES QUAD. NR WILLOW CR. EVERGREEN CONIFER FOREST, MEADOW, 4331 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  SEINET10463751  Campanula scouleri James P. Smith 1977-7-3 Smith, Jr. 9250 Humboldt Six Rivers National Forest: along the road to Onion Lake, just above Blue Lake. T10N R4E Sec. 15 975 Comment
  HSC12555  Capsella bursa-pastoris D. La Conte 1970-10-11 16 Humboldt Cultivated area Comment
  HSC35279  Capsella bursa-pastoris J. D. Ackerman, A. M. Montalvo 1975-6-22 492 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  RSA302679  Cardamine angulata J. R. Shevock 1972-3-26 1467 Humboldt Hwy 299. 366 Comment
  HSC6690  Cardamine californica D. E. Anderson 1962-3-17 1934 Humboldt 4 mi. S of Lone Star Ranch Comment
  HSC89491  Cardamine californica P. A. Daly 1986-2-28 61 Humboldt Trinidad Head, along trail 61 Comment
  UC162351  Cardamine californica Joseph P. Tracy 1905-4-2 2159 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  RSA167406  Cardamine californica var. integrifolia Joseph P. Tracy 1950-4-20 18619 Humboldt West slope of Buck Mountain, along highway, about 2 miles S of the Little Van Duzen crossing. Comment
  CHSC77460  Cardamine californica var. sinuata Vernon H. Oswald 2000-4-3 9909 Humboldt Trail from County Parking Lot to headlands at Elk Head northwest of Trinidad. 24 Comment
  UC1173730  Cardamine californica var. sinuata Joseph P. Tracy 1939-4-25 16221 Humboldt mouth Bull Creek; Mouth of Bull Creek 60 Comment
  HSC99363  Cardamine nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 12 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-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  UC275269  Cardamine oligosperma Joseph P. Tracy 1923-4-15 6183 Humboldt at Berry's Northern Coast Ranges, , at Berry's (Redwood Creek) 274 Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC43205  Cardamine oligosperma R. Sutherland 1976-8-13 29 .13876 Humboldt Mouth of Redwood Creek at S Fork of Eel River 87 Comment
  RSA32661  Cardionema ramosissimum Doris K. Kildale 1925-7-2 904 Humboldt Table Bluff beach. Comment
  HSC79422  Carduus pycnocephalus subsp. pycnocephalus Kenneth Clark 1980-3-22 522 Humboldt Above Deadman's Gulch 107 Comment
  SEINET202626  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt 'Angel's Ranch' toward Hungry Hollow; Bald Mountain Comment
  JEPS75414  Carex W. L. Jepson 1932-7-26 16411 Humboldt s bank, Bull Creek Bull Creek 106 Comment
  HSC74695  Carex abrupta Gail Newton 1981-8-7 2462 Humboldt Near Board Camp Mtn. 1478 Comment
  JEPS63768  Carex amplifolia Joseph P. Tracy 1914-7-4 4530 Humboldt edge of Murphy's Meadow Bald Mountain, High Prairie, Murphy's Meadow 1066 Comment
  NY25689  Carex amplifolia J. P. Tracy 1914-7-4 4530 Humboldt "High prairie" on Bald Mountain, edge of Murphy's Meadow 1066.8 Comment
  UC1152063  Carex angustata Joseph P. Tracy 1950-7-6 18988 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  CHSC85062  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt Pacific Lumber Company Land. L 35 Rd. 1/2 mile west of Fox Creek Road, west side of large swamp. 70 Comment
  RSA167283  Carex athrostachya Joseph P. Tracy 1950-7-6 18990 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  SEINET10644708  Carex athrostachya Joseph P. Tracy 1934-7-18 Tracy 13426 Humboldt 1524 Comment
  SEINET11629975  Carex athrostachya J. P. Tracy 1950-1 18989 Humboldt NW slope of Buck Mountain, Burr Valley 1067 Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  RSA126089  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC34975  Carex densa Joseph Prince Tracy 1942-6-15 17135 Humboldt Englewood. Natural prairie, near Redcrest resort. 91 Comment
  UC562255  Carex densa Joseph P. Tracy 1936-6-3 14848 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC34974  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  UC1152065  Carex densa Joseph P. Tracy 1950-7-6 18987 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  CHSC90287  Carex echinata subsp. echinata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8602 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  POM160306  Carex echinata subsp. echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain 1463 Comment
  UC1103127  Carex echinata subsp. echinata Joseph P. Tracy 1923-6-24 6372 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 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
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  SEINET7558590 Image available Carex feta Alice Eastwood, John Thomas Howell 1937-6-22 4743 Humboldt Near Blocksburg. Comment
  UC585645  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  CAS-BOT-BC20841  Carex geyeri Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  JEPS25963  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Coast Ranges. Phillipsville, facing South Fork of Eel River Comment
  UC213330  Carex gynodynama Joseph P. Tracy 1920-5-18 5324 Humboldt Northern Coast Ranges: On South Fork, 5 miles above Dyerville. Along Eel River from South Fork to Scotia. Comment
  UC303151  Carex gynodynama Joseph P. Tracy 1925-5-10 6962 Humboldt Hydesiville. Comment
  UC562729  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Costa Ranges. Phillipsivelle, facing south Fork of Eel River. Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  SEINET3901641  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Eel River: Bull Creek at South Fork of.; 0 Comment
  HSC75762  Carex hoodii Denis Kearns 1981-7-22 318 Humboldt Near Whiteys Peak 1487 Comment
  CAS-BOT-BC7565  Carex integra Joseph Prince Tracy 1935-7-23 14139 Humboldt Trinity Summit. Open places at Corral Prairie. 1584 Comment
  HSC103140  Carex lenticularis var. lipocarpa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1060 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC539862  Carex mendocinensis Alice Eastwood; John Thomas Howell 1937-6-24 4866 Humboldt 5 mi E of Berry Summit Comment
  HSC98991  Carex multicaulis Cara Witte 2008-6-13 718 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC562669  Carex multicostata Joseph P. Tracy 1927-7-4 8233 Humboldt Iaqua North Coast Ranges 609 Comment
  HSC48134  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt At intersection of Kneeland-Bridgeville road and Redwood House road Comment
  CAS-BOT-BC119544  Carex nudata L. P. Janeway 1983-7-23 437 Humboldt Hoopa quad. Along the W side Klamath River at Aikens Creek. 91 Comment
  CHSC40167  Carex nudata L. P. Janeway 1984-4-20 732 Humboldt Levee on east side of Eel River near Fortuna at Sandy Prairie Road. 12 Comment
  UCR45817  Carex nudata L. P. Janeway 1983-7-23 439 Humboldt Forks of Salmon Q., East side of Klamath River at Ike's Falls River Access, c. 5 mi north of Orleans. 147 Comment
  UC562448  Carex nudata Joseph P. Tracy 1935-7-21 14120 Humboldt along river at Willow Creek Trinity River Valley 152 Comment
  HSC86478  Carex obnupta Rudolf W. Becking 1988-4-9 Humboldt South Spit, opposite Fields Landing Comment
  UC1133418  Carex obnupta H. S. Yates 1936-6-18 5730 Humboldt near mouth Little River; Eureka Quadrangle Comment
  CAS-BOT-BC119267  Carex ovalis Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie on ridge E or Orick. 548 Comment
  CAS-BOT-BC119229  Carex pachystachya Joseph Prince Tracy 1927-5-29 8077 Humboldt Big Lagoon 6 Comment
  UC1103100  Carex pachystachya Joseph P. Tracy 1935-6-23 13983 Humboldt French Camp Ridge 1066 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  HSC98951  Carex pachystachya Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC119169  Carex pansa Joseph Prince Tracy 1911-6-25 3258 Humboldt Eureka, bayshore. Comment
  UC303073  Carex praticola Joseph P. Tracy 1915-6-6 4641 Humboldt Eureka, Stephen Hill place Northern Coast Region 0 Comment
  UC1115814  Carex preslii Joseph P. Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC118008  Carex rossii Joseph Prince Tracy 1932-5-10 9937 Humboldt Bear River Redge, on open grassy hills. 609 Comment
  HSC102222  Carex scopulorum var. bracteosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1138 Humboldt Patterson Meadows 1555 Comment
  JEPS80015  Carex subbracteata Joseph P. Tracy 1925-7-5 7165 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  CAS-BOT-BC116906  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4822 Humboldt Bridgeville Comment
  CAS-BOT-BC116681  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  SEINET10751219  Carex unilateralis Joseph P. Tracy 1930-6-15 Tracy 8756 Humboldt Dobbyn Creek, bordering a pond. 152 Comment
  CAS-BOT-BC115286  Carex utriculata Joseph Prince Tracy 1932-7-14 10563 Humboldt Trinity Summit, Corral Prairie in wet meadow. Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  UC562325  Carex vesicaria var. major Joseph P. Tracy 1934-7-30 13502 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  UC562342  Carex vesicaria var. major Joseph P. Tracy 1934-8-14 13574 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  HSC90439  Carpobrotus chilensis Jean Hanson 1980-3-8 14 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, SW shore 15 ft. from high tide line. Comment
  UCD129942  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  SEINET12027436  Castanopsis chrysophylla J. P. Tracy 1950-1 19239 Humboldt Grouse Mtn 1524 Comment
  HSC104289  Castilleja affinis subsp. litoralis Samantha E. Andres 2016-6-3 10 Humboldt About 0.5 mi. down the road from Table Bluff to the OHV road at South Jetty 29 Comment
  JEPS35842  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 1964-8-2 8988 Humboldt just n Table Bluff lighthouse (s of Humboldt Bay) Comment
  UC275302  Castilleja ambigua subsp. ambigua R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC97237  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Jane Nelson 2004-4-20 9182 Humboldt At estuary to Elk River, SE of mouth 2 Comment
  UC535764  Castilleja applegatei subsp. martinii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC255517  Castilleja applegatei var. pinetorum Barry Silver 1986-4-23 531 Humboldt Bair Road, 9.5 miles nw of junction with Highway 299, Pine Ridge Summit area 944 Comment
  HSC60038  Castilleja attenuata M. A. Baker 1978-5-6 492 Humboldt 2 km. W of Weitchpec along Klamath River Comment
  JEPS8743  Castilleja foliolosa Joseph P. Tracy 1934-7-9 13329 Humboldt 5 mi s Harris; Mail Ridge 762 Comment
  CAS-BOT-BC244879  Castilleja miniata Mrs. H. C. Cantelow 1935-5-31 836 Humboldt 15 mi. N. of Orick Comment
  CAS-BOT-BC244884  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC99043  Castilleja pruinosa Cara Witte 2008-6-4 678 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  JEPS103929  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi SE of junction of rt. 299 and Titlow Hill Rd. on way to Horse Mt. Comment
  UC199407  Castilleja pruinosa P. E. Goddard 1907-6-5 . 115 Humboldt Van Duzen Comment
  HSC20868  Castilleja rubicundula subsp. lithospermoides G. N. Bos 1965-5-2 244 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS13340  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt Laribee Valley 792 Comment
  HSC37603  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 15 .13575 Humboldt Brushy flat 509 Comment
  RSA46802  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt [No locality information on label.] Comment
  CAS-BOT-BC63724  Ceanothus integerrimus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC63725  Ceanothus integerrimus H. E. McMinn 1922-8-5 350 Humboldt Along Van Duzen River. Comment
  CHSC31293  Ceanothus integerrimus Mark Stopher 1980-6-4 107 Humboldt Near Elk River near Hwy 101 bridge. 1 Comment
  HSC39520  Ceanothus integerrimus Thomas W. Nelson, James Nelson 1976-6-10 2663 Humboldt Ridge W of Senteney Rock 1555 Comment
  HSC96951  Ceanothus integerrimus Whitney Meier, Elizabeth Kimbrough 2007-6-11 4 Humboldt Cold Springs Camp, 14.1 mi. S of Hwy. 299 on FS Rd. NF1 Comment
  HSC37082  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 6 .8575 Humboldt County rd. 4 mi SE of Honeydew 259 Comment
  RSA136480  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC51206  Ceanothus parryi W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  CAS-BOT-BC51220  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  RSA1039  Ceanothus parryi E. R. Johnson 1928-8-25 1143 Humboldt Eureka 30 Comment
  UC1004332  Ceanothus parryi W. L. Colwell 1954-11-20 22 Humboldt along Eel River 3 mi e South Fork; Quad. 29B4, Eel River e of South Fork 91 Comment
  CAS-BOT-BC53059  Ceanothus pumilus Doris Kildale Gillespie 1931-6-7 10603 Humboldt South Fork Mt. - Blake Lookout 1726 Comment
  BLMAR284  Ceanothus thyrsiflorus Jennifer Anthony-Wheeler 1999-5-28 284 Humboldt King range, growing on strawberry Rock grazing allotment 304 Comment
  BLMAR806  Ceanothus thyrsiflorus Madeleine Hassett 2017-7-25 806 Humboldt Lost Coast Headlands, ~200ft down the road from Fleener Creek trailhead 75 Comment
  HSC43218  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 12 .28575 Humboldt Tolkan Recreational Site 503 Comment
  RSA600896  Ceanothus thyrsiflorus Louis C. Wheeler 1959-8-1 7618 Humboldt Queens Peak Mine. Comment
  HSC101670  Ceanothus thyrsiflorus var. thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13131 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC18355  Ceanothus velutinus Francis Winter 1960-4-24 Humboldt 2 mi. SE of Schoolhouse Peak 838 Comment
  LA26771  Ceanothus velutinus S. K. Harris; 1942-6-12 1257 Humboldt Fickle Hill Rd., 5 mi. N and 2 mi. E of Boynton Prairie 630.0 Comment
  HSC99446  Ceanothus velutinus var. velutinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 96 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-BC277175  Centaurea X moncktonii Henry M. Pollard 1945-8-20 s.n. Humboldt Bluff Creek Comment
  JEPS44148  Centaurea cyanus Lincoln Constance 1934-6-25 928 Humboldt on e side of road at Englewood (across the road from Collins' Englewood Campground); Bull Creek Region, South Fork Eel River Comment
  CDA20058  Centaurea diffusa R. Spadoni, Green 2002-10-9 PDR P 070865 Humboldt Northwestern California; Wasteground near old log pond at Pacific Lumber Co, Scotia. 0 Comment
  CAS-BOT-BC272098  Centaurea melitensis T. C. Fuller 1961-3-21 5856 Humboldt 1 mi. NE limits Eureka Comment
  UC1222949  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  BLMAR299  Centaurium tenuiflorum Clara Sander 2002-7-16 299 Humboldt King range, East of Capetown, growing east of wildcat rd 152 Comment
  UC275461  Centromadia fitchii Joseph P. Tracy 1925-8-23 7247 Humboldt Harris Northern Coast Ranges 914 Comment
  HSC4107  Cerastium glomeratum David K. Smith 1968-11-20 81 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  HSC95646  Cerastium glomeratum Andrea Pickart 2002-4-3 33 Humboldt Samoa Dunes, Eureka airport, 'Superbowl 15 Comment
  CAS-BOT-BC400144  Ceratophyllum demersum Henry M. Pollard 1946-8-16 s.n. Humboldt Pond near Harley place, Orleans region Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. Comment
  HSC45913  Chamaecyparis lawsoniana Jerome Peterson 1978-5-1 10 Humboldt Near corner of 8th and G St. in Arcata Comment
  MACF027376  Chamaecyparis lawsoniana S. R. Ganley 1972-3-26 1053 Humboldt Along Hwy. 299 365 Comment
  HSC69753  Chamaesyce maculata Thomas W. Nelson 1977-10-10 3754 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  UC170197  Chamaesyce serpyllifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5710 Humboldt Hoopa Valley Comment
  HSC99520  Chamerion angustifolium subsp. circumvagum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 183 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC55119  Cheilanthes gracillima Gilbert Muth 1979-8-1 11897 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC99618  Chimaphila menziesii Jimerson, J. Pageau 1979-6-13 755 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  HSC71586  Chimaphila umbellata Gail Newton 1980-6-16 187 Humboldt Near Onion Mtn. 1280 Comment
  HSC76593  Chimaphila umbellata Teresa Prendusi 1981-7-9 231 Humboldt Near Cedar Camp 1256 Comment
  UC1197599  Chimaphila umbellata Joseph P. Tracy 1934-8-29 13634 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  CHSC19746  Chloris pycnothrix D. E. Anderson 1970-1-20 Humboldt In the Humboldt State College Greenhouses. Seed source: Ethiopia. Comment
  RSA246878  Chrysolepis chrysophylla Robert F. Thorne, P. Everett 1965-8-5 35134 b Humboldt Mt. Chamisal: below summit. 747 Comment
  JEPS37866  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  OBI14344  Chrysolepis chrysophylla var. minor Carl B. Wolf 1937-9-13 9338 Humboldt North Coast range, summit of Grouse Mt Comment
  UC667996  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC1198851  Chrysosplenium glechomifolium Joseph P. Tracy 1928-4-29 8422 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  SD58271  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  UCD127288  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  SEINET8726116 Image available Circaea alpina Unknown 1936-1 s.n. Humboldt Damp wooded bank of Yager creek at 2400 feet altitude, Humboldt County, California. 732 Comment
  HSC5373  Cirsium arvense Paul Shields 1955-9-29 Humboldt 1/2 mi. S Fernbridge Comment
  NY370205  Cirsium arvense L. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  HSC60029  Cirsium occidentale var. candidissimum M. A. Baker 1978-5-6 484 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC129605  Cirsium occidentale var. candidissimum Harley P. Chandler 1901-6-1 1490 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC288719  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff 121 Comment
  RSA40410  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  CAS-BOT-BC160952  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-17 3749 Humboldt Bug Creek 792 Comment
  UC183702  Clarkia amoena subsp. amoena Joseph P. Tracy 1912-7-26 3857 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA13761  Clarkia amoena subsp. huntiana Carl B. Wolf 1927-8-29 1199 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  RSA108238  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 416 Humboldt Highway 36, 0.1 mile west of Humboldt - Trinity County line Comment
  RSA167246  Clarkia concinna subsp. concinna Joseph P. Tracy 1950-6-15 18813 Humboldt Mail Ridge, North of Harris, at Huestis Rock on northeast side of ridge 823 Comment
  UC594154  Clarkia concinna subsp. concinna S. K. Harris, J. P. Tracy 1936-6-10 3265 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  LA206350  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis 1947-6-13 420 Humboldt highway 36, 2.3 mi. E of S Fork of Van Duzen River (Bridge 4-119) Comment
  UC183694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1913-6-23 4284 Humboldt ridge between Van Duzen River and Mad River (near summit, on Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  HSC38312  Clarkia purpurea Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  POM247174  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1933-7-3 12634 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC172504  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-8 2128 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC172511  Clarkia purpurea subsp. quadrivulnera Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  UC1071933  Clarkia purpurea subsp. quadrivulnera H. and M. Lewis 1947-6-13 415 Humboldt 0.1 mi w Trinity Co. line (Highway 36) Comment
  HSC39550  Claytonia exigua subsp. exigua Thomas W. Nelson 1976-6-14 2701 Humboldt S of Mt. Lassic, Signal Peak 1646 Comment
  SEINET196691 Image available Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt Trinity Summit Range; Happy Camp Mt., NE of Hawkins Bar. 1280 Comment
  JEPS43187  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1916-4-30 4682 Humboldt Table Bluff Northern Coast Ranges, Humboldt Bay (aroung Humboldt Bay) 152 Comment
  UCD100848  Claytonia rubra subsp. depressa Linda M. Barker 1976-4-13 1378 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC161025  Claytonia rubra subsp. depressa Joseph P. Tracy 1904-5-1 2048 Humboldt near Bucksport; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC32310  Claytonia rubra subsp. rubra D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5662 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC17728  Claytonia sibirica D. E. Anderson 1961-8-11 1725 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC17734  Claytonia sibirica Harvey Doerksen 1962-5-4 1 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  UC1215540  Claytonia sibirica D. E. Anderson 1962-3-8 1930 Humboldt e of Humboldt State University Comment
  UC672987  Claytonia sibirica Joseph P. Tracy 1932-7-14 10536 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  SEINET11942404  Claytonia sibirica J. P. Tracy 1950-1 18960 Humboldt Fern Spring, Happy Camp Mountain (in Trinity Summit Range, 6 mi NE of Hawkins Bar) 1280 Comment
  UC1028307  Claytonia sibirica George B. Rossbach 1955-6-8 263 Humboldt Prairie Creek Redwoods State Park (Route 101) Comment
  CAS-BOT-BC499339  Clintonia andrewsiana Doris K. Kildale 1931-5-10 10682 Humboldt Snow Camp Comment
  RSA39092  Clintonia andrewsiana Philip A. Munz 1948-8-15 12359 Humboldt Van Duzen Redwood State Park. Comment
  HSC102018  Clintonia uniflora M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 919 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC146212  Clintonia uniflora Joseph P. Tracy 1908-6-27 2733 Humboldt at foot of Buck Mountain, along the Van Duzen River Van Duzen River; Northern Coast Ranges, Buck Mountain, Van Duzen River 304 Comment
  UC30060  Clintonia uniflora Mrs. M. H. Manning Humboldt near Hupa (Redwood Trail); Redwood Trail Comment
  UC885542  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Larrabee Valley 762 Comment
  HSC74316  Collinsia greenei M. A. Baker 1980-7-11 2782 Humboldt Near Red Mtn. 1341 Comment
  CHSC63420  Collinsia linearis Vernon H. Oswald 1994-6-29 6357 Humboldt Titlow Hill Rd. (Forest Rd. 1) 3.9 mi S of Hwy. 299, SW of Willow Creek. 1289 Comment
  RSA127512  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt Near Head of Willow Cr. Canyon, Trinity Hwy. Comment
  UC147888  Collinsia parviflora Joseph P. Tracy 1908-6-9 2658 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC604633  Collinsia parviflora Joseph P. Tracy 1938-6-13 15922 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC31203  Collinsia rattanii D. E. Anderson 1972-6-20 5744 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC673102  Collinsia rattanii Joseph P. Tracy 1940-5-17 16552 Humboldt Larrabee Valley 731 Comment
  JEPS7056  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  HSC48850  Collomia grandiflora Brad Klipfel 1973-7-15 208 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1222736  Collomia grandiflora Joseph P. Tracy 1950-7-6 19029 Humboldt 3 mi s Burr Valley; Sprosten's Place 1066 Comment
  HSC56008  Collomia heterophylla Overton, Butler 1979-7-31 11489 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  RSA120682  Collomia heterophylla S. S. Tillett 1956-7-6 610 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  UC534985  Collomia heterophylla Harold E. Parks May 1933 1152 Humboldt Spruce Cove Trinidad 76 Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew Comment
  UC1197842  Collomia heterophylla Joseph P. Tracy 1929-7-4 8611 Humboldt in open places French Camp 1066 Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  HSC73719  Collomia tracyi M. A. Baker 1980-7-15 2955 Humboldt Near Whiting Ridge. 1341 Comment
  HSC99065  Collomia tracyi Cara Witte 2008-7-2 812 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  UC1197866  Collomia tracyi Joseph P. Tracy 1946-6-15 17566 Humboldt broken rock talus on lower slopes Horse Mountain 1066 Comment
  HSC36297  Comarum palustre Dana A. Page 1973-11-24 Humboldt Crannell Rd. 0.5 mi. E of Hwy. 101, McKinleyville Comment
  UC1197344  Conioselinum pacificum Joseph P. Tracy 1913-8-31 4388 Humboldt near Indianola (s end of Humboldt Bay); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC37858  Conium maculatum Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC127716  Conyza canadensis Harley P. Chandler May 1901 1241 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  BLMAR203  Corallorhiza maculata Jennifer Anthony-Wheeler 1996-7-9 203 Humboldt Pilot ridge. 1280 Comment
  HSC27560  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-6-30 88 Humboldt Big Lagoon County Park, 8 mi. N of Trinidad Comment
  UC666980  Corallorhiza mertensiana Joseph P. Tracy 1930-7-17 9017 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC90780  Cordylanthus maritimus subsp. palustris Peter Sorensen 1976-6-16 Humboldt Woodley Island. 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
  HSC100233  Cordyline australis J. P. Smith 2010-5-29 12890 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  BLMAR421  Corethrogyne filaginifolia Jennifer Wheeler 2007-8-30 421 Humboldt North Spit, Arkley property, growing under shore pines 18 Comment
  BLMAR678  Corethrogyne filaginifolia Jennifer Wheeler 2013-7-12 678 Humboldt King range, Johnny Jack Ridge 677 Comment
  UC1223039  Corethrogyne filaginifolia Joseph P. Tracy 1947-6-8 17705 Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  POM356152  Corethrogyne filaginifolia var. californica E. A. Purer 1932-7-30 4675 Humboldt South of Orick Comment
  CAS-BOT-BC209754  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 & 5210 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek 152 Comment
  CAS-BOT-BC212013  Cornus nuttallii Doris K. Kildale 1927-5-1 3118 Humboldt Blocksburg Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  LA97947  Cornus sessilis Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1144 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  RSA113712  Cornus stolonifera Joseph P. Tracy 1948-9-2 18201 Humboldt Trinity Summitt. In fir woods, head of Little Hors-Linto Creek. 1372 Comment
  JEPS53366  Coronopus didymus W. L. Jepson 1932-7-28 16431 Humboldt Dyerville 88 Comment
  UC146107  Corylus californica Joseph P. Tracy 1906-6-24 2500 Humboldt Humboldt Hill, S side North Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC180312  Corylus cornuta subsp. californica L. B. Kildale 1926-8-31 2602 Humboldt Union Mattole, Geo. H. Mineis Ranch Comment
  HSC31123  Corylus cornuta subsp. californica J. O. Sawyer 1970-6-24 2260 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  SBBG58030  Corylus cornuta subsp. californica R. Hartwell 1938-8-4 Humboldt Bull Crk Flat, hillside opposite the store Comment
  UC166068  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC291343  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park Comment
  CAS-BOT-BC290340  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  CAS-BOT-BC291487  Crepis capillaris L. R. Abrams 1927-8-31 12055 Humboldt Marshes between Arcata and Eureka along highway Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  RSA167386  Crepis pleurocarpa Joseph P. Tracy 1947-7-9 17846 Humboldt Top of Horse Mt Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  HSC100706  Cryptantha Carl C. Marshall Jun 1887 484 Humboldt Near Jewett's field. Comment
  HSC58047  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 11906 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1239662  Cryptantha affinis Joseph P. Tracy 1935-7-23 14130 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC199009  Cryptantha leiocarpa Joseph P. Tracy 1906-5-13 2457 Humboldt Humboldt Bay Comment
  SEINET12280860  Cryptantha milobakeri J. P. Tracy, Harris, S. K. 1942-1 17221 Humboldt E side of Hoopa Valley, hillside Comment
  UC1222270  Cryptantha torreyana Joseph P. Tracy 1946-6-23 17600 Humboldt se end Kneeland Prairie (near the Dan McBride place) 762 Comment
  HSC55070  Cryptogramma acrostichoides G. L. Clifton, Griswold 1979-7-31 11650 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CDA5584  Cuscuta approximata var. urceolata E. C. Whitney 1959-8-11 2942 Humboldt Elhert Reynolds property, 1 mile south of Fortuna, Loop Road, 2nd field on south side of road. 0 Comment
  SEINET905773  Cuscuta campestris Harry B. Tucker 1946-1 s.n. Humboldt Bayside, field, local in small area 6 Comment
  HSC104294  Cuscuta occidentalis Samantha E. Andres 2016-5-30 15 Humboldt Dry Lagoon Coastal Trail 5 Comment
  HSC90245  Cuscuta pacifica var. pacifica Jean Hanson 1980-8-28 109 Humboldt Indian (Gunther) Island in Humboldt Bay, Eureka, across from Coast Guard Station within 30 ft. of high tide line Comment
  HSC82128  Cycladenia humilis D. K. Imper 1985-6-18 Humboldt At ridgetop 1.5 mi. N of Whitey's Peak 1707 Comment
  UC642236  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  CAS-BOT-BC190379  Cynosurus echinatus H. E. Parks; Joseph P. Tracy 1933-6-11 12542 Humboldt Northern Coast Ranges. Near Miranda. 152 Comment
  SBBG53060  Cynosurus echinatus R. N. Philbrick, J. R. Haller 1976-6-25 4 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC668036  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC99660  Cypripedium californicum T. Jimerson, J. Pageau 1979-6-22 598 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  HSC100390  Cystopteris fragilis Carl C. Marshall 454 Humboldt Road between Harris and Garberville. Comment
  HSC10935  Dactylis glomerata Paul Shields Nov 1954 Humboldt Humboldt State campus. Comment
  UC37938  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5557 Humboldt Scotia Comment
  UC37939  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5431 Humboldt Hubbard's Station Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UCD61361  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  BLMAR238  Datisca glomerata Jennifer Anthony-Wheeler 1997-6-13 238 Humboldt King range, growing in wet seep along old queen mine rd 512 Comment
  CDA30706  Daucus carota M. K. Beyers, I. Shepardson 2009-9-13 251 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC12359  Daucus carota C. Kline 1970-11-28 84 Humboldt Hwy 101, 1 mi S of Arcata Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  SD50777  Daucus carota Darley F. Howe 1959-8-4 2805 Humboldt 9 miles east of Arcata on # 395 Comment
  HSC44634  Delphinium decorum subsp. tracyi Diane L. Reed 1978-5-27 125 Humboldt 2.9 mi. from Hwy. 299 on Titlow Hill Rd., Horse Mtn. Comment
  HSC46067  Delphinium depauperatum R. C. Wunner 1962-5-6 Humboldt Denny Forest Service Campground Comment
  SEINET12099543  Delphinium hesperium H. P. Chandler 1901-1 1410 Humboldt Klamath River 1000 Comment
  UC552299  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1934-4-8 13174 Humboldt between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  JEPS23323  Delphinium hesperium subsp. hesperium Milo S. Baker 1923-7-29 147 Humboldt Lawrence Creek, east of Carlotta and Fortuna Comment
  OBI10845  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley at Willow Crk 152 Comment
  HSC37516  Delphinium menziesii J. D. Ackerman 1974-5-25 265 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad Comment
  UC1196328  Delphinium nudicaule Joseph P. Tracy 1937-5-30 15303 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  HSC25013  Delphinium nudicaule R. A. Rasp 1964-4-5 28 Humboldt 5 mi. N of Hoopa on Willow Creek Rd. 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
  HSC32132  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5603 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS8447  Delphinium nuttallianum Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3411 Humboldt 0.5 mi w Snow Camp (ridge between Mad River and Redwood Creek); Bald Mountain ridge 1432 Comment
  HSC100616  Delphinium trolliifolium Carl C. Marshall Apr 1887 363 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC121964  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  CAS-BOT-BC121965  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  UC503045  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC187264  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1904-7-31 2129 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC201772  Deschampsia elongata W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC102190  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1104 Humboldt Andy's Camp 1564 Comment
  HSC13422  Deschampsia elongata D. C. Juve 1964-5-16 37 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  HSC64157  Deschampsia elongata J. O. Sawyer, K. A. Sawyer 1979-6-24 3400 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC65115  Deschampsia elongata J. P. Smith 1973-5-26 6856 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC552755  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UCD63596  Deschampsia elongata Elizabeth Wilson 1936-6-18 Humboldt From Garberville north into Holbrook Grove. Comment
  CHSC95018  Dicentra formosa K. Lang; J. Lang 2005-3-14 28 Humboldt Trinidad, N. California coast 51 Comment
  HSC44257  Dicentra formosa J. Walker 1977-4-23 8 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC503031  Dicentra formosa Joseph P. Tracy 1930-8-17 9164 Humboldt Big Lagoon; Northern Coast Region 15 Comment
  JEPS9732  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  RSA254753  Dichanthelium acuminatum var. fasciculatum Thomas W. Nelson 1973-9-3 1120 Humboldt McKeown Ranch north of Dinsmore Comment
  SEINET200953 Image available Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Rocky places along river. Trinity River Valley at Willow Creek Comment
  CAS-BOT-BC483666  Dichelostemma capitatum Doris K. Kildale 1928-5-6 5995 Humboldt Garberville, south fork of Eel River Comment
  UC1198164  Dichelostemma congestum Joseph P. Tracy 1917-6-17 4814 Humboldt near Field's Landing (Still Farm, near Humboldt Bay); Northern Coast Ranges, Humboldt Bay 15 Comment
  HSC74700  Dichelostemma ida-maia Gail Newton 1981-8-5 2371 Humboldt Near Bug Creek, E Fork 914 Comment
  JEPS5685  Dichelostemma ida-maia Joseph P. Tracy 1923-7-4 6524 Humboldt Northern Coast Ranges, valley of S. Yager Creek 762 Comment
  RSA46864  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie, Bald Hills. Comment
  JEPS11293  Digitalis purpurea W. L. Jepson 1902-6 1918 Humboldt near Eureka 12 Comment
  UC1409176  Dipsacus fullonum Robert F. Thorne and P. Everett 1965-8-9 35282 Humboldt 2.5 mi n Arcata Comment
  HSC9636  Distichlis spicata Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  UCD64176  Distichlis spicata A. H. Murphy 1950-8-1 Humboldt Ocean House area, Cape Mendocino. Comment
  JEPS14669  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
  JEPS14696  Dodecatheon alpinum W. L. Jepson Jul 16 1902-Jul 23 1902 2105 Humboldt Trinity Summit 2133 Comment
  JEPS14451  Downingia elegans Joseph P. Tracy 1930-6-15 8739 Humboldt near Bosworth's; North Coast Ranges, Larrabee Creek 457 Comment
  HSC36312  Drosera rotundifolia James Beaver 1973-5-20 Humboldt Big Lagoon Comment
  UC1198694  Drymocallis glandulosa Joseph P. Tracy 1910-6-19 3154 Humboldt region about Humboldt Bay (near Forks of Elk River); Northern Coast Region, near Forks Elk River 0 Comment
  UC1198689  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1933-5-14 12172 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC57875  Drymocallis lactea var. lactea Overton, Butler 1979-7-31 11411 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58166  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-2 12232 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC33655  Dryopteris arguta Margaret Weatherwax 1975-6-1 172 Humboldt Ward Rd. to Snow Camp Comment
  SFV7745  Dysphania botrys T. Gordon, K. Kimbrough 1975-8-22 1225 Humboldt Eel River. 61 Comment
  BLMAR359  Echinochloa crus-galli Jennifer Anthony-Wheeler 2003-10-21 359 Humboldt Headwaters Forest Reserve, coming out of rice straw 487 Comment
  HSC7305  Eleocharis acicularis J. P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie 61 Comment
  OBI22607  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie Comment
  CAS-BOT-BC113643  Eleocharis acicularis Doris K. Kildale 1928-7-29 5932 Humboldt Kinman Pond, Bear River Ridge. Comment
  UC1103668  Eleocharis bella Joseph P. Tracy 1927-8-7 8313 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  UC666920  Eleocharis bella Joseph P. Tracy 1935-7-17 14108 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC7309  Eleocharis macrostachya Paul Shields 1955-10-7 Humboldt Essex Pond near Fieldbrook Comment
  CHSC96433  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E, 4557202N. 3 Comment
  JEPS19324  Eleocharis parishii Joseph P. Tracy 1926-8-12 7767 Humboldt Trinity River Valley, near the South Fork Northern Coast Ranges 182 Comment
  RSA246895  Eleocharis radicans Robert F. Thorne, Percy C. Everett 1965-8-9 35342 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  CAS-BOT-BC227348  Elymus elymoides Doris K. Kildale 1925-8-17 1260 Humboldt Trinity Summit 1917 Comment
  SEINET200645  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Ridge 457 Comment
  HSC98130  Elymus hispidus Cara Witte 2007-6-28 387 Humboldt Forest Service Road 5N10. 1293 Comment
  UC187090  Elymus multisetus Joseph P. Tracy 1908-6 2691 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC38212  Elymus multisetus Joseph Burtt Davy 1899-6-19 5661 Humboldt Hoopa Mt. Comment
  RSA257605  Empetrum eamesii subsp. hermaphroditum G. D. Wallace 1975-8-22 11486 Humboldt NW of Trinidad, on NW facing exposure of Megwil Point, just N of Elk Head, N of College Cove, sand bluffs in sight of Green Rock to the NW. Comment
  SDSU8812  Epilobium angustifolium Harvey 1938-8-13 2236 Humboldt Stephens Grove Comment
  CDA21306  Epilobium angustifolium subsp. circumvagum D. Kratville 2007-7-1 PDR 1426134 Humboldt North Coast; Stone Lagoon State Park, Hwy 101, Orick. 0 Comment
  JEPS43904  Epilobium brachycarpum W. L. Jepson 1936-8-8 17861 Humboldt Richardson Grove South Fork Eel River Comment
  UC183699  Epilobium brachycarpum Joseph P. Tracy 1912-7-26 3827 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC32948  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, James Nelson 1973-5-28 958 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC74500  Epilobium ciliatum subsp. ciliatum Gail Newton 1980-8-10 2047 Humboldt Near Blake Mtn. 1707 Comment
  JEPS43830  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1936-8-8 17862 Humboldt Richardson Grove South Fork Eel River Comment
  HSC13239  Epilobium ciliatum subsp. watsonii Steve Dorei 1970-10-9 36 Humboldt HSU Campus, around pond at W end of Fish Hatchery Comment
  HSC95397  Epilobium ciliatum subsp. watsonii Andrea Pickart 2002-7-9 171 Humboldt Bracut Marsh 0 Comment
  HSC55015  Epilobium hallianum Overton, Butler 1979-7-31 11407 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC45464  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4390 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  HSC76622  Epilobium minutum Denis Kearns 1981-7-22 322 Humboldt Near Whiteys Peak. 1487 Comment
  HSC98840  Epilobium minutum Cara Witte 2008-7-11 877 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC169920  Epilobium minutum Harley P. Chandler May, 1901 1125 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC44405  Epilobium minutum R. York 1978-5-6 157 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC79541  Epilobium minutum Kenneth Clark 1981-4-5 1300 Humboldt Dead Man's Gulch, Shelter Cove 11 Comment
  UC552238 Image available Epilobium oreganum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain North Coast Ranges Comment
  HSC74202  Epilobium oregonense M. A. Baker 1980-7-22 3094 Humboldt Near Grogan Hole. 1676 Comment
  CAS-BOT-BC171846  Epilobium septentrionale Carl B. Wolf 1927-8-30 1235 Humboldt 2 mi. so. of Petrolia on Matole River near where road crosses river. Comment
  HSC16559  Epilobium septentrionale C. B. Wolf 1927-8-30 1234 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  HSC63171  Epilobium septentrionale M. A. Baker 1979-7-7 1017 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  UC562496  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel River); S. Fork Eel River 121 Comment
  RSA44454  Eragrostis cilianensis Henry M. Pollard 1947-8-30 s.n. Humboldt Klamath River at Wilson Creek, near Orleans Comment
  UC249866  Eragrostis pectinacea var. pectinacea Joseph P. Tracy 1924-8-31 6835 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  UC212870  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 Humboldt mouth of Bluff Creek (Klamath R.); Northern Coast Ranges, Klamath R. 152 Comment
  CAS-BOT-BC291176  Erechtites glomeratus H. E. Parks; S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove, Trinidad 60 Comment
  CHSC68552  Erechtites glomeratus Vernon H. Oswald 1997-4-29 8350 Humboldt Humboldt Bay NWR, levee north of Long Pond along the arm of South Humboldt Bay separating Teal Island from the main part of the refuge. Comment
  CDA4544  Erechtites glomeratus E. Clayton 1956-5-7 Humboldt Eureka, Samoa Road., 200 yards south of Fairhaven. 0 Comment
  HSC5496  Erechtites minimus Paul Shields Aug 1955 Humboldt 5 mi. W of Weott Comment
  POM318607  Erechtites minimus Patricia Wilder 1968-8-21 4379 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UCR48863  Erechtites prenanthoides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 20 Humboldt Beside Mattole Rd at Bear River Ridge, south of Ferndale 525 Comment
  CAS-BOT-BC174186  Eremogone congesta var. congesta Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC57993  Eremogone congesta var. suffrutescens G. L. Clifton, Griswold 1979-7-31 11754 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC581773  Ericameria nauseosa var. speciosa Joseph P. Tracy 1933-8-30 13005 Humboldt Horse Mountain 1310 Comment
  CAS-BOT-BC293486  Erigeron aliceae L. B. Kildale 1930-8-10 10529 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC293511  Erigeron annuus Henry M. Pollard 1947-8-21 s.n. Humboldt Ferrian Ranch, nr. Orleans Comment
  UC583067  Erigeron biolettii P. A. Munz 1936-8-9 14331 Humboldt 5 mi n Humboldt-Mendocino county line; south fork Eel River Comment
  CAS-BOT-BC300370  Erigeron eatonii var. plantagineus Thomas W. Nelson; James L. Nelson 1980-6-10 5395 Humboldt North Coast Ranges. Jack Rabbit Valley. Along Swayback Ridge 4-wheel drive road 1 mile south of junction with Forest Service road 1493 Comment
  JEPS24331  Erigeron foliosus var. mendocinus Andrew P. Nelson 1960-7-19 579 Humboldt bank above South Fork Eel River; Humboldt Redwoods State Park, Nelson Grove Comment
  SBBG52999  Erigeron glaucus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  HSC5525  Erigeron glaucus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 mi. S of Trinidad Comment
  UC34630  Erigeron inornatus var. inornatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC165068  Erigeron strigosus var. septentrionalis J. P. Tracy 1909-8-22 3078 Humboldt immediate vicinity Eureka 0 Comment
  RSA256584  Eriodictyon californicum D. E. Anderson 1972-6-20 5737 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  CAS-BOT-BC259181  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCSB1454  Eriogonum latifolium Parks, H. 1941-08 Humboldt Little River Comment
  UC146156  Eriogonum latifolium J. P. Tracy 1904-7-4 2115 Humboldt vicinity Eureka (bluff at Bucksport); Bucksport 0 Comment
  CAS-BOT-BC259529  Eriogonum luteolum var. luteolum Henry M. Pollard 1945-8-25 s.n. Humboldt Between Orleans & Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC259536  Eriogonum luteolum var. luteolum Milo S. Baker 1927-8-14 2435 a Humboldt Near Summit of ridge West of Bull Creek Comment
  UC1198102  Eriogonum luteolum var. luteolum Joseph P. Tracy 1920-8-15 5390 Humboldt at mouth of Bluff Creek on Klamath River Klamath River, Bluff Creek 152 Comment
  UC176685  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3761 Humboldt Alton Norther Coast Ranges, Alton 30 Comment
  HSC17450  Eriogonum nudum var. oblongifolium D. E. Anderson 1962-7-14 2254 Humboldt About 3 mi. E of Kneeland Comment
  CAS-BOT-BC269866  Eriogonum nudum var. pubiflorum Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC267968  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  HSC98698  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-25 585 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1 mile south of intersection with National Forest 1. 1525 Comment
  CHSC80057  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 mi west of the spur road to top of Horse Mountain. 1341 Comment
  HSC39231  Eriogonum umbellatum var. nelsoniorum D. E. Anderson, J. P. Smith 1971-7-6 - 1281 Humboldt Horse Mtn. Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  RSA0005167  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 Comment
  HSC28146  Eriophyllum lanatum Chris Gist 1971-6-19 36 Humboldt 3 mi. in on Titlow Hill Rd. from California State Hwy. 299, Horse Mtn. Comment
  HSC73935  Eriophyllum lanatum Gail Newton 1980-6-28 680 Humboldt Near Mad River Butte. 1536 Comment
  CDA18219  Eriophyllum lanatum var. achilleoides G. D. Barbe, T. C. Fuller 1974-6-17 1847 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  HSC97922  Eriophyllum lanatum var. achilleoides Cara Witte 2007-6-19 299 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  HSC60054  Eriophyllum lanatum var. arachnoideum M. A. Baker 1978-5-20 567 Humboldt W side of the Klamath River along Hwy. 96 Comment
  UC204867  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1918-7-21 5082 Humboldt Humboldt Hill Northern Coast Ranges of California, Humboldt Hill 152 Comment
  HSC97629  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-4 205 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC129580  Eriophyllum lanatum var. grandiflorum Mrs. M. H. Manning 1901-6-7 Humboldt near Hupa Comment
  UC17110  Erodium moschatum J. P. Tracy 1899-4-16 150 Humboldt Eureka Comment
  JEPS14258  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-8-20 16125 Humboldt Alton 30 Comment
  CAS-BOT-BC41574  Erysimum capitatum S. K. Harris 1936-6-20 3493 Humboldt Above Van Duzen River about 3 miles west of Bridgeville. Comment
  CAS-BOT-BC41575  Erysimum capitatum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain. 1371 Comment
  SEINET10970607  Erysimum capitatum Jones 1985-6-6 Jones 115 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat. Growing on rock wall 1143 Comment
  HSC39965  Erysimum menziesii Linda M. Barker 1976-3-22 1342 Humboldt 3 mi. W of Arcata Comment
  CHSC19730  Erythranthe dentata Gary J. Stebbins 1970-5-17 81 Humboldt Along Jolly Giant Creek up from H. S. C. dorms 1.9 miles from the parking lot. 70 Comment
  UC201391  Erythronium californicum Joseph P. Tracy 1918-5-1 4897 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  SEINET3992480  Erythronium grandiflorum var. pallidum Unknown 1933-7-16 12774 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  HSC99352  Erythronium oregonum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 1 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC41249  Erythronium oregonum subsp. leucandrum Brad Klipfel 1974-5-27 396 Humboldt Horse Mtn. Comment
  HSC15503  Erythronium revolutum G. N. Bos 1965-5-2 245 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  JEPS61875  Erythronium revolutum Joseph P. Tracy 1918-5-28 4938 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  UC184939  Eschscholzia californica Joseph P. Tracy 1913-6-15 4138 Humboldt Dinsmore's Ranch Northern Coast Ranges, Valley of Van Duzen River (opposite Buck Mountain) 762 Comment
  OBI69925  Eucalyptus globulus Jenn Yost, Matt Ritter 2008-4-1 41 Humboldt Sewell R. off 101, Weott Comment
  UC1199300  Eucephalus tomentellus Joseph P. Tracy 1934-8-29 13621 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC249819  Euchiton gymnocephalus Joseph P. Tracy 1923-4-1 6175 Humboldt near Blue Lake; Northern Coast Ranges 304 Comment
  HSC5687  Euchiton sphaericus J. P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC562473  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  CAS-BOT-BC206802  Euonymus occidentalis Doris K. Kildale 1926-7-22 2417 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC37659  Euonymus occidentalis Jan Fryling 1976-9-28 Humboldt Cutten area of the city of Eureka. Comment
  HSC98803  Euonymus occidentalis var. occidentalis Cara Witte 2008-7-30 966 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N32. 1514 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
  HSC48607  Euphorbia helioscopia Mark Flippo 1978-4-8 7 Humboldt In McKinleyville, along Bella Vista Rd. Comment
  HSC35991  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-1 2189 Humboldt High Rock State Park Comment
  UC202856  Euthamia occidentalis Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  HSC31183  Festuca californica D. E. Anderson 1972-6-20 5752 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC65452  Festuca californica J. P. Smith, J. O. Sawyer 1973-5-12 6697 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  UCD65870  Festuca californica subsp. californica P. B. Kennedy 1923-8-2 Humboldt Near grade Bluff Creek to Arcata. Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  UC1103728  Festuca idahoensis Joseph P. Tracy 1921-5-30 5485 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC31224  Festuca occidentalis D. E. Anderson 1972-6-20 5723 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC525636  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  RSA10070  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon. Comment
  UCD66390  Festuca rubra Collector Unknown 1951-6-18 Humboldt Near Hydesville. Comment
  UC1056065  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt 1 mi n Luke Prairie Quad. (Quad 29-B-2); Peavine Ridge 701 Comment
  UC1197363  Foeniculum vulgare Joseph P. Tracy 1930-10-12 9216 Humboldt Eel R. Alton to Fortuna; Eel R. 15 Comment
  HSC36257  Foeniculum vulgare John Rehling 1974-8-3 17 Humboldt Growing along side of old Hwy 299 in disturbed area Comment
  CAS-BOT-BC453519  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  HSC18616  Fragaria chiloensis A. Sylvester, R. Spellenberg, D. Sutherland 1966-3-26 1355 Humboldt Near Beachcross 5 mi. W of Ferndale on coast Comment
  HSC44279  Fragaria vesca D. L. Goforth 1977-4-23 4 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS44674  Fragaria virginiana Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UCD113269  Fragaria virginiana Gunter Staudt; H. Ahmadi 1989-5-15 313 Humboldt North of Trinidad along Highway, near Seawood Drive exit. Comment
  CAS-BOT-BC52738  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  CAS-BOT-BC59970  Frangula purshiana L. R. Abrams 1922-6-25 8258 Humboldt N. of Mad River near Arcata. Comment
  HSC61031  Frangula purshiana T. Jimerson, J. Pageau 1979-8-10 730 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC99392  Frangula purshiana subsp. purshiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 41 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-BC217698  Fraxinus latifolia Doris K. Kildale 1927-5-13 3142 Humboldt Redwood Creek at Berry's 289 Comment
  HSC15538  Fritillaria affinis T. W. Beck 1963-4-13 21 Humboldt Camp Bauer, Korbel, between baseball backstop and Mad River Comment
  UC666944  Fritillaria affinis Joseph P. Tracy 1927-4-24 7941 Humboldt Table Bluff 152 Comment
  HSC15540  Fritillaria affinis R. A. Rasp 1964-4-5 31 Humboldt 5 mi. E of Klamath Trinity Junction at Bluff Creek Public Camp Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  SEINET12050370  Fritillaria affinis F. H. Utech 1988-1 88 -285 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, bluff above Van Duzen River 800 Comment
  HSC41592  Galium ambiguum subsp. siskiyouense Thomas W. Nelson, Jane P. Nelson 1977-7-1 3558 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  UC1222495  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  HSC98081  Galium bolanderi Cara Witte 2007-7-3 415 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  RSA273400  Galium bolanderi Thomas W. Nelson, Jane Nelson 1976-7-1 2896 Humboldt North of Bear Creek 1463 Comment
  HSC69762  Galium divaricatum Thomas W. Nelson, Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek Comment
  JEPS52838  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3860 Humboldt 2.3 mi s Weott; Avenue of The Giants 60 Comment
  UC35333  Galium muricatum Chesnut and Drew 1888-7-12 Humboldt Campbell's Comment
  UC176990  Galium parisiense Joseph P. Tracy 1913-4-27 4042 Humboldt Eureka Comment
  UC602539  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC602546  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  RSA53645  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  HSC38387  Galium trifidum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa near Humboldt County Airport Comment
  HSC57325  Galium triflorum Overton, Butler 1979-7-24 9643 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC58008  Galium triflorum G. L. Clifton 1979-7-31 11804 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC81937  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4956 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC98710  Galium triflorum Cara Witte 2007-7-20 562 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  UC416651  Galium triflorum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  BLMAR224  Galium triflorum Jennifer Anthony-Wheeler 1996-7-11 224 Humboldt N. Dobbyn creek, shady areas of forest floor throughout understory 1005 Comment
  UC1199115  Gamochaeta coarctata Joseph P. Tracy 1927-7-17 8264 Humboldt Butler Valley 152 Comment
  HSC48772  Gamochaeta ustulata Brad Klipfel 1975-5-22 614 Humboldt Near the city of Eureka airport S of Samoa Comment
  HSC41344  Garrya buxifolia Brad Klipfel 1974-9-17 577 Humboldt Horse Mtn. Comment
  CAS-BOT-BC188549  Garrya elliptica J. P. Tracy 1901-2-15 992 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC194527  Garrya elliptica D. E. Breedlove 1962-7-7 3056 Humboldt On extensive sand dunes 1.5 miles south of Samoa [Samosa] on peninsulaon western side of Humboldt Bay Comment
  UC1196887  Garrya elliptica Joseph P. Tracy 1921-2-27 5414 Humboldt Drakes Hill; Northern Coast Region 30 Comment
  UCD121101  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC35698  Garrya fremontii Thomas W. Nelson, B. Reinhardt 1975-7-30 2105 Humboldt along Rd. out to Whiting Ridge and at Last Chance Ridge Comment
  HSC72925  Garrya fremontii Gail Newton 1980-7-22 1679 Humboldt Near Devils Backbone 231 Comment
  UCD66582  Gastridium phleoides P. B. Kennedy 1923-8-5 26 Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  CAS-BOT-BC58922  Gaultheria shallon L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  HSC23125  Gaultheria shallon G. M. Nordstrom 1966-4-24 17 Humboldt Kneeland-Maple Creek Rd., near jct. with Korbel rd. Comment
  HSC40118  Gaultheria shallon Dan O'Brien 1962-5-9 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  POM285359  Gaultheria shallon Lyman Benson 1928-7-10 582 Humboldt Dyerville. 61 Comment
  UC1197592  Gaultheria shallon J. P. Tracy 1901-5-30 1114 Humboldt immediate vicinity Eureka 0 Comment
  HSC102929  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 901 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC54012  Gayophytum diffusum subsp. parviflorum Griswold, Butler 1979-7-12 7142 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC54756  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-26 10293 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC76038  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-8-2 12582 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC422799  Gayophytum heterozygum Chesnut and Drew Humboldt Comment
  HSC15524  Genista monspessulana D. La Conte 1970-8-10 4 Humboldt Comment
  UC1198638  Gentiana affinis var. ovata J. P. Tracy 1896-8 15 Humboldt immediate vicinity Eureka; Rick's Prairie 0 Comment
  CAS-BOT-BC217409  Gentiana plurisetosa E. V. Jotter 1912-10-1 247 Humboldt Trinity Summit, Trinity Forest 1524 Comment
  HSC101055  Gentiana plurisetosa Sydney Carothers 1998-8-10 201 Humboldt Patterson Meadow 1555 Comment
  HSC24639  Gentiana sceptrum Doris K. Kildale 1925-7-26 1065 Humboldt Christmas Prairie Comment
  HSC23999  Geranium bicknellii Tim Baroni 1971-7-6 125 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  UC1197402  Geranium carolinianum Joseph P. Tracy 1935-5-25 13875 Humboldt Fort Seward 106 Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  CHSC673  Geranium dissectum M. Underhill 1952-7-13 Humboldt Coastal. 0 Comment
  HSC2218  Geranium dissectum H. E. Parks, S. T. Parks Apr 1938 24118 Humboldt Spruce Cove, Trinidad 61 Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  UC154213  Geum macrophyllum var. macrophyllum J. P. Tracy 1901-6-23 1171 Humboldt immediate vicinity of Eureka 0 Comment
  CHSC31278  Gilia capitata Mark Stopher 1980-5-28 75 Humboldt Along Rte 169, 7.5 mi w of Martins Ferry Bridge. Comment
  HSC32885  Gilia capitata Thomas W. Nelson, James Nelson 1973-5-28 937 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC16983  Gilia millefoliata J. W. Bosworth 1965-5-14 49 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC34464  Gilia millefoliata J. P. Smith 1975-5-11 8077 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  POM128309  Githopsis specularioides Chestnut, E. R. Drew 1888-07 s.n. Humboldt [No location data on label, though there is an indecipherable word.] Comment
  HSC17915  Glaux maritima Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  UC1197365  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-5-18 1097 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  SEINET200359 Image available Glyceria elata J. P. Tracy 1935-7-25 114251 Humboldt Trinity Summit lower end of Brett Hole 1585 Comment
  CAS-BOT-BC282840  Glyceria striata H. P. Chandler 1901-6-1 1526 Humboldt Klamath River 426 Comment
  CAS-BOT-BC282850  Glyceria striata Joseph P. Tracy 1925-7-5 7170 Humboldt Bald Mountain near High Prairie 1066 Comment
  HSC70482  Glyceria striata Gail Newton 1980-7-20 1636 Humboldt Near Bell Swamps 1426 Comment
  HSC74433  Glyceria striata Gail Newton 1980-8-10 2063 Humboldt Near Blake Mtn. 1707 Comment
  UC1103750  Glyceria striata Joseph P. Tracy 1934-7-18 13430 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC1103751  Glyceria striata Joseph P. Tracy 1903-6-14 1922 Humboldt Eureka; Northern Coast Region 0 Comment
  CAS-BOT-BC302619  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  JEPS34040  Gnaphalium palustre W. L. Jepson 1936-8-17 17919 a Humboldt 2 mi s of Field's Landing (near Still's Ranch, marsh) Comment
  UC582518  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UCD132451  Gnaphalium palustre James Payne Smith Jr. 1976-10-30 8995 Humboldt Mad River, east of Essex Lane exit. Comment
  POM224403  Gnaphalium sphaericum J. T. Howell 1936-8-29 12888 Humboldt Eel River 16 miles N of Garberville. Comment
  SEINET12641404  Gratiola ebracteata Unknown 1936-1 15022 Humboldt Bald Mountain ; at "Lake Prairie in bog Comment
  CAS-BOT-BC304734  Grindelia hirsutula H. E. Parks; S. T. Parks 1930-9-14 0773 Humboldt North shore of Big Lagoon Comment
  CAS-BOT-BC304735  Grindelia hirsutula L. R. Abrams 1927-8-31 12057 Humboldt Along highway between Eureka and Arcata Comment
  CAS-BOT-BC304762  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  HSC12338  Grindelia hirsutula Steve Dorei 1970-10-26 116 Humboldt Arcata, on South G St. near curve Comment
  UC1199435  Grindelia hirsutula Joseph P. Tracy 1938-6-17 15955 Humboldt s point of Cape Mendocino Cape Mendocino (in exposed situations near ocean shore) 3 Comment
  UC479505  Grindelia hirsutula Marcus E. Jones, A. M. 1931-7-16 29143 Humboldt Arcata Comment
  POM160899  Grindelia hirsutula var. davyi Joseph P. Tracy 1918-7-7 5038 Humboldt Near Garberville. 122 Comment
  SEINET11835909  Grindelia stricta var. stricta J. P. Tracy 1947-1 17944 Humboldt mouth of Eel River, S side, Camp Weeott 3 Comment
  HSC57669  Hackelia micrantha G. L. Clifton, Griswold 1979-7-25 10854 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SEINET11678982  Hainardia cylindrica J. P. Tracy 1938-1 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
  CAS-BOT-BC306871  Helenium bolanderi L. R. Abrams; R. Bacigalupi 1922-6-25 8261 Humboldt Between Trinidad and Big Lagoon Comment
  UC525571  Heliotropium curassavicum Joseph P. Tracy 1927-6-26 8210 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  CAS-BOT-BC305848  Helminthotheca echioides Doris K. Kildale 1928-7-29 5918 Humboldt Bear River at Capetown Comment
  HSC45215  Hemitomes congestum Louise Watson, Mary Lou Schreiber 1978-9-29 Humboldt West side of summit, 1/4 mi. N. of McKinleyville-Fieldbrook Rd. Bulk Collection 137 Comment
  CAS-BOT-BC310076  Hemizonella minima Carl B. Wolf 1934-7-2 5861 Humboldt Snow Camp (mts. E. of Korbel). Near Small Lake 1371 Comment
  UC1565811  Hemizonella minima R. Spellenberg 1990-7-9 10228 Humboldt on USFS Rd 1 20.5 mi s Calif. Hwy. 299 and Berry Summit (14 air mi sw of Burnt Ranch, extreme e edge of county); Pilot Ridge 1371 Comment
  UC275470  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-9-20 7272 Humboldt near the s fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1223088  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1950-6-8 18757 Humboldt Comment
  HSC60360  Heracleum maximum Clark L. Miller 1979-5-13 1120 Humboldt N of Trinidad along Patricks Point Dr. Comment
  UC1223121  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  HSC18664  Heteromeles arbutifolia R. J. Vernimen 1963-4-27 27 Humboldt 9 mi. S of Willow Creek, Grouse Mtn. area Comment
  RSA47118  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 s.n. Humboldt Bruceland Bridge Comment
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Jul 24 2020
  HSC5311  Heterotheca oregona Paul Shields Aug 1955 Humboldt 1 mi. N of Weott Comment
  UCSB30616  Heterotheca oregona Edwards, David 1974-8-1 Humboldt Near E. bank of Mad River north of its junction with Puter Creek, ca. 2 mi. SW of Korbel 3 Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC485473  Heterotheca oregona var. rudis unknown Humboldt Chandler, <rest illegible> Klamath River Comment
  HSC102136  Heuchera merriamii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1040 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET12219180  Heuchera micrantha H. P. Chandler 1901-1 1231 Humboldt Redwood Belt, North Coast Ranges 457 Comment
  UC902003  Heuchera micrantha Joseph P. Tracy 1947-4-27 17673 Humboldt roadside near top of Wolverton Gulch (1/2 mi w of tow) 152 Comment
  HSC55746  Heuchera rubescens G. L. Clifton, Griswold 1979-7-26 10269 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57023  Hieracium albiflorum Overton, Butler 1979-7-24 9640 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC312392  Hieracium albiflorum Doris K. Kildale 1925-8-17 1196 Humboldt Triity Summit 1828 Comment
  HSC5825  Hieracium albiflorum David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  HSC5829  Hieracium albiflorum H. E. Parks, J. P. Tracy 1930-9-14 768 Humboldt Bald Hills, near Kneeland Comment
  UC1199468  Hieracium scouleri Joseph P. Tracy 1937-7-29 15592 Humboldt w slope near the top South Fork Mountian (at Hyampom Trail); South Fork Mountain, Hyampom Trail 1676 Comment
  HSC100488  Hierochloe macrophylla Carl C. Marshall 353 Humboldt S side of Table Bluff. Comment
  CDA28238  Hierochloe occidentalis Wilma Mae Lowary & Norah van Kleeck 1974-8-8 Humboldt Lady Bird Johnson Grove, Redwood National Park, northeast of Orick. 0 Comment
  HSC13463  Hippuris vulgaris L. J. Coombes 1964-5-9 29 Humboldt 3 mi. N on Lamphere Rd., Arcata low lands Comment
  CAS-BOT-BC280734  Holcus lanatus Doris K. Kildale 1928-6-24 7062 Humboldt Redwood Creek at Berrys 289 Comment
  CAS-BOT-BC280735  Holcus lanatus L. R. Abrams 1916-7-11 6018 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC10134  Holcus lanatus R. D. Zortman 1963-4-14 27 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC10139  Holcus lanatus W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  POM232313  Holcus lanatus I. L. Wiggins 1930-6-25 4614 Humboldt Sand dunes 2 miles north of Samoa. Comment
  POM291100  Holcus lanatus Lyman Benson 1929-7-14 1797 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC38605  Holcus lanatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5558 Humboldt Scotia Comment
  SEINET200842 Image available Hordeum brachyantherum Joseph Tracy, Roland von Bothmer; 1980 1933-6-6 12508 Humboldt unspecified 9 Comment
  UC1103747  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-7-16 8251 Humboldt mouth of Elk River 3 Comment
  CDA18214  Hordeum marinum subsp. gussoneanum G. D. Barbe, T. C. Fuller 1974-6-17 1842 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  CAS-BOT-BC536630  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  UC659403  Horkelia tridentata subsp. flavescens Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2613 Humboldt near Eureka; Larrabee Valley 762 Comment
  UC1198716  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1933-6-13 12593 Humboldt near summit (on rd w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mt. 914 Comment
  CAS-BOT-BC206124  Hosackia crassifolia Alice Eastwood; John Thomas Howell 1937-6-23 4852 Humboldt 5 miles from Kneeland on road to Korbel Comment
  HSC44374  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson 1977-7-4 3614 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC96156  Hosackia crassifolia var. crassifolia Thomas W. Nelson, Jane P. Nelson 1987-6-11 8531 Humboldt Along F.S. Rd. 13N01, 18 mi. from junction with State Route 96 1067 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
  HSC62746  Hydrocotyle ranunculoides J. M. DiTomaso 1979-5-29 1078 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  SEINET12279830  Hydrophyllum occidentale H. P. Chandler 1901-1 1263 Humboldt Redwood Belt 457 Comment
  HSC13541  Hydrophyllum tenuipes H. E. Parks, J. P. Tracy 1930-5-25 863 Humboldt Van Duzen River 305 Comment
  HSC38628  Hydrophyllum tenuipes D. E. Anderson, J. P. Smith 1971-6-18 - 1100 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC562602  Hydrophyllum tenuipes Joseph P. Tracy 1924-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of Kneeland Road) 457 Comment
  HSC58119  Hypericum anagalloides G. L. Clifton, Griswold 1979-8-1 12088 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC62864  Hypericum anagalloides J. M. DiTomaso 1979-5-20 1046 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC74685  Hypericum anagalloides Gail Newton 1981-8-7 2457 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC91879  Hypericum anagalloides E. Mackey 1987-8-29 Humboldt Patrick's Point State Park, in woods near Palmer's Point Comment
  UC1103552  Hypericum anagalloides Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges, Christmas Prairie 914 Comment
  POM253651  Hypericum androsaemum C. L. Hitchcock, J. S. Martin, A. S. Hitchcock 5442 Humboldt Woods 7 miles east of Shelter Cove. 244 Comment
  UC35071  Hypericum formosum var. scouleri Chesnut and Drew 1888-7-30 Humboldt Grouse Creek Comment
  CAS-BOT-BC401229  Hypericum perforatum Doris K. Kildale 1928-6-24 7061 Humboldt Redwood Creek at Berry's Comment
  HSC12005  Hypericum perforatum Wilbur Peterson 1970-10-18 60 Humboldt 200 yards S of Mad River Bridge on Hwy 101 Comment
  HSC99605  Hypericum scouleri Jimerson, J. Pageau 1979-8-10 722 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC100439  Hypochaeris glabra Carl C. Marshall May 1885 44 Humboldt Roadsides, etc. Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  UCSB6709  Hypochaeris radicata Keator, Glenn 1958-6-18 Humboldt In the vicinity of Smith River (the town) Comment
  UC302049 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek 152 Comment
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Feb 27 2012
  UC302050 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek 152 Comment
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Feb 27 2012
  UC630469 Image available Iliamna latibracteata H. E. Parks, S. T. Parks June, 1935 5593 Humboldt East side of Prairie Creek, North of Orick. Comment
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Feb 27 2012
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC13865  Iris douglasiana J. J. Wagoner 1965-4-3 9 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 24 Comment
  JEPS17218  Iris douglasiana Milo S. Baker 1923-7-31 157 a Humboldt Lawrence Creek; central Humboldt County Comment
  RSA135855  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16511 Humboldt 1.6 miles south of Myers to Nelson Grove, Highway 101 Comment
  SEINET12056852  Iris douglasiana H. P. Chandler 1901-1 1262 Humboldt Redwood Belt 457 Comment
  UC175302  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 B Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC100379  Iris macrosiphon J. Moore 2007-6-13 Humboldt Horse Mountain Botanical Area, off Hwy. 1. 1220 Comment
  BLMAR542  Iris purdyi Jennifer Wheeler 2009-6-23 542 Humboldt King range, On Paradise Ridge road Comment
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 Comment
  RSA114085  Iris purdyi Rimo C. Bacigalupi, L. Constance, Joseph P. Tracy, Reid V. Moran, R. L. Rodriguez, Sherwin Carlquist 1951-6-14 3414 Humboldt Near Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1433 Comment
  HSC48416  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC65228  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 441 Humboldt 6.05 mi. N of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  UC1174759  Iris tenax subsp. klamathensis L. W. Lenz 1953-5-13 18296 Humboldt along Klamath River Klamath River (Orleans); ; along Klamath River, Orleans, Humboldt Co. Comment
  UC1046540  Iris tenuissima R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (about Snow Camp, Bald Mountain); Bald Mountain, Snow Camp 1432 Comment
  JEPS64018  Isolepis cernua W. L. Jepson 1921-8-7 9336 Humboldt on the flats and beach Stone Lagoon Comment
  HSC83042  Isolepis cernua A. L. Eicher 1985-8-17 Humboldt Coastal salt marsh bordering Humboldt Bay, 0.3 mi. S of junction of Samoa Blvd. and Vance Ave. 1 Comment
  JEPS11945  Isolepis cernua Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-10 4759 B Humboldt along U.S. Highway 101 0.4 mi s of the southern boundary marker Dry Lagoon Beach State Park; s of Dry Lagoon Beach State Park Comment
  CHSC96435  Isolepis setacea Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E 4557202N. 3 Comment
  JEPS79910  Isopyrum stipitatum Joseph P. Tracy 1935-5-5 13802 Humboldt Kneeland Prairie 822 Comment
  CHSC56526  Jaumea carnosa L. P. Janeway 1983-9-24 705 Humboldt Sand pit next to Big Lagoon. 3 Comment
  JEPS93182  Jaumea carnosa Margriet Wetherwax and Kevin Downing 1993-8-9 2463 Humboldt n Eureka (along n side of slough, Jacobs St. turn-off of 101N just beyond bridge over slough, between 2 Peterbilt warehouses); Eureka Slough 5 Comment
  UC741148  Jaumea carnosa C. C. and S. K. Harris 1939-8-26 994 Humboldt salt marsh south shore Humboldt Bay Comment
  UC1152116  Juncus ambiguus Joseph P. Tracy 1934-7-2 13283 Humboldt mouth of Little River Little River Comment
  UC185007  Juncus balticus subsp. ater Joseph P. Tracy 1912-7-21 3787 Humboldt Alton Northern Coast Region 30 Comment
  UC184214  Juncus bolanderi Joseph P. Tracy 1900-9-3 940 Humboldt Eureka Northern Coast Region 0 Comment
  UC726303  Juncus breweri A. A. Heller 1929-8-4 14996 Humboldt Little River Comment
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Dec 13 2006
  UCD141362  Juncus bufonius Linda M. Barker 1976-6-22 1619 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA246802  Juncus bufonius Robert F. Thorne, Percy C. Everett 1965-8-7 35229 Humboldt Samoa Peninsula. 3 Comment
  HSC71730  Juncus effusus subsp. pacificus M. A. Baker 1980-6-26 2450 Humboldt Near Sims Creek 610 Comment
  HSC98575  Juncus ensifolius Cara Witte 2008-8-6 1012 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC249814  Juncus ensifolius Joseph P. Tracy 1924-7-4 6703 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  RSA53821  Juncus ensifolius Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  UC1152094  Juncus ensifolius Joseph P. Tracy 1950-7-16 8980 Humboldt near McKay Camp (close to Trinity County line); South Fork Mountain 1676 Comment
  CDA39191  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UC421840  Juncus mertensianus Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5787 Humboldt Trinity Summit North Coast Ranges Comment
  POM160292  Juncus nevadensis var. inventus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon. 6 Comment
  UC1222344  Juncus occidentalis Joseph P. Tracy 1953-6-26 19561 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC184934  Juncus patens Joseph P. Tracy 1906-6-24 2506 Humboldt near Fields Landing (s slope of Humboldt Hill); Northern Coast Ranges, Humboldt Bay Region, Humboldt Hill 0 Comment
  HSC57962  Juncus tenuis G. L. Clifton, Terry Griswold 1979-7-31 11667 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC717989  Juncus xiphioides David D. Keck 1944-7-11 5495 Humboldt Cape Mendocino 3 Comment
  HSC73067  Juniperus communis var. saxatilis M. A. Baker 1980-6-16 1954 Humboldt Near Onion Mtn. 1280 Comment
  HSC100476  Kalmia glauca Carl C. Marshall Jun 1886 302 Humboldt Trinity Summit. Comment
  RSA120310A  Keckiella corymbosa S. S. Tillett 1956-7-6 605 Humboldt E facing slope above Klamath River, along Ishi Rish Road, 1 mi. n. of Orleans. 168 Comment
  UC1222464  Keckiella corymbosa Joseph P. Tracy 1934-8-26 13602 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  UC577412  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt ridge between Bull Creek and Mattole River 762 Comment
  RSA167285  Koeleria macrantha Joseph P. Tracy 1951-6-24 19541 Humboldt Kneeland Prairie; rockpile and Ashfield Butte 762 Comment
  UCD133521  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie. 762 Comment
  HSC69891  Lagophylla ramosissima Thomas W. Nelson, Jane P. Nelson 1977-7-30 3661 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  UC1222971  Lasthenia californica subsp. californica Joseph P. Tracy 1947-6-28 17752 Humboldt Larrabee Valley 731 Comment
  HSC26469  Lasthenia maritima T. O. Osborne 1970-5-17 20 Humboldt Sugarloaf Rock, Cape Mendocino 46 Comment
  HSC26361  Lasthenia maritima T. O. Osborne 1970-5-24 89 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  SEINET3860275  Lathyrus biflorus Thomas W. Nelson, Jim Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle.; 0 1372 Comment
  JEPS55352  Lathyrus glandulosus Lincoln Constance 1934-6-8 837 Humboldt Cow Creek fire-trail, from Bull Creek road, n over the divide, into the headwaters of Bear Creek South Fork Eel River, Bull Creek Region, Bear Creek Comment
  UC1368669  Lathyrus glandulosus J. P. Tracy 1946-6-15 17571 Humboldt w of summit between North Fork Mad River and Redwood Creek (along Lord Ellis Road, part of Trinity Highway) 609 Comment
  JEPS55323  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1926-5-2 7432 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA667222  Lathyrus littoralis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7014 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  RSA168910  Lathyrus nevadensis subsp. nevadensis Joseph P. Tracy 1942-6-23 17226 Humboldt Trinity Summit Ridge top one mile west of Mud Springs. Comment
  UC162614  Lathyrus nevadensis var. nevadensis Harley P. Chandler Jun 1901 1443 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC14750  Lathyrus nevadensis var. nevadensis D. E. Anderson 1965-5-1 3574 Humboldt Along Bluff Creek Rd., about 2.5 mi. from its junction with Hwy. 96. Comment
  CAS-BOT-BC205040  Lathyrus palustris Milo S. Baker 1931-7-17 5407 Humboldt South side of Big Lagoon near cottages Comment
  UC709414  Lathyrus palustris Joseph P. Tracy 1940-9-26 16727 Humboldt Eureka Comment
  HSC73128  Lathyrus polyphyllus M. A. Baker 1980-5-18 1283 Humboldt Near Black Mtn. 1006 Comment
  SEINET202727  Lathyrus polyphyllus Joseph Tracy 1948-7-11 18074 Humboldt Willow Creek Canyon along Trinity Highway Comment
  HSC14736  Lathyrus tingitanus N. D. Dennis 1965-5-10 63 Humboldt 2nd and T St., Eureka Comment
  UC1112278  Lathyrus torreyi R. E. Nelson 1956-7-3 193 Humboldt 1.5 mi s Brush Mountain (in vicinity of Salyer); Six Rivers National Forest, Salyer 792 Comment
  UC1199066  Lathyrus torreyi Joseph P. Tracy 1922-6-5 6084 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC1222402  Lathyrus torreyi Joseph P. Tracy 1943-7-18 17430 Humboldt East Fork of Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek Canyon Comment
  HSC23457  Lathyrus tracyi D. E. Anderson 1965-5-1 3561 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC103337  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7413 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  UC1199084  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1924-8-10 6814 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  UC198626  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt mouth Little River Comment
  UC581805  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  UC1103516  Lemna minuscula Joseph P. Tracy 1919-9-14 5212 Humboldt opposite Willow Creek (Lack Pond on Trinity River); Northern Coast Ranges, Trinity River, Lack Pond 152 Comment
  RSA15571  Leontodon nudicaulis C. B. Wolf 1927-8-28 1188 -A Humboldt Eureka Bay, on the road to Arcata. Comment
  RSA409613  Lepechinia calycina Thekla Mohr 1919-07 3342 Humboldt Eel River. Comment
  UC1245362  Lepidium heterophyllum Mrs. Archie Cathey Jul 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  UC201614  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC6859  Lepidium strictum J. P. Tracy 1941-5-4 16866 Humboldt Scotia Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD115837  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC180236  Leptosiphon latisectus Joseph P. Tracy 1914-5-14 4423 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CAS-BOT-BC341827  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges. Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 670 Comment
  JEPS20619  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC444058  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  RSA273333  Lewisia triphylla Thomas W. Nelson, Jane P. Nelson 1976-6-15 2725 Humboldt [Unspecified] 1585 Comment
  CAS-BOT-BC283511  Leymus X vancouverensis Joseph P. Tracy 1927-6-26 8214 Humboldt Stone Lagoon 6 Comment
  SEINET200642 Image available Leymus triticoides J. P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC70627  Ligusticum californicum J. M. DiTomaso 1980-6-27 1623 Humboldt 6 mi from Orleans on Gasquet-Orleans Rd. Comment
  HSC21522  Lilaeopsis occidentalis D. E. Anderson 1962-7-14 2272 Humboldt W edge of Freshwater Lagoon Comment
  HSC65837  Lilium bolanderi Gail Newton 1980-6-16 183 Humboldt Near Onion Mtn. 1280 Comment
  UC175813  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC640274  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi n Trinidad Comment
  CAS-BOT-BC130690  Lilium occidentale David D. Keck 1948-7-1 5978 Humboldt 3 mi. N. Big Lagoon Comment
  JEPS563  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC902038  Lilium pardalinum Joseph P. Tracy 1949-8-26 18518 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC132963  Lilium rubescens Doris K. Kildale 1926-5-16 2001 Humboldt Miranda on South Fork of Eel River Comment
  HSC98357  Lilium vollmeri T. Jimerson, J. Pageau 1979-6-22 600 Humboldt Near Bee Mtn., close to the town of Orleans 656 Comment
  RSA44370B  Lilium washingtonianum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  CAS-BOT-BC133011  Lilium washingtonianum subsp. purpurascens Tom Craig 1941-6-28 s.n. Humboldt Near Yager, S.E. of Eureka Comment
  OBI12584  Limnanthes douglasii Carl B. Wolf 1937-6-14 8818 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  HSC100568  Limnanthes douglasii Carl C. Marshall Jun 1887 68 Humboldt Damp soils throughout Humboldt. Comment
  HSC15784  Limnanthes douglasii J. E. Lankila 1962-5-6 8 Humboldt W bank of river at Ferndale. Comment
  HSC45270  Limnanthes douglasii M. Alcasas 1978-6-3 118 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  OBI12589  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt S Fork Eel River. Upper Look Prairie 366 Comment
  SD129683  Limnanthes douglasii var. nivea Barbara Ertter, Thomas J. Delendick 1987-5-16 6925 Humboldt Vista Point just west of Berry Summit on Highway 299, ca. 15 miles east of Arcata. 914 Comment
  CDA20098  Limnobium laevigatum E. Finley 2003-3-27 PDR 1035513 Humboldt North Coast Ranges; Alder Grove Marsh, Arcata. 0 Comment
  SEINET200735  Linanthastrum nuttallii J. P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1067 Comment
  UC908636  Linanthus acicularis Joseph P. Tracy 1929-5-5 8563 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC54709  Linanthus androsaceus Joseph Burtt Davy and Walter C. Blasdale 1899-5 5371 Humboldt near Harris Comment
  UC906690  Linanthus bicolor Joseph P. Tracy 1942-5-16 17344 Humboldt Garberville 152 Comment
  JEPS11331  Linaria vulgaris Joseph P. Tracy 1921-7-23 5858 Humboldt Dows Prairie, thence to Trinidad Dows Prairie Dows Prairie; Northern Coast Ranges, Dows Prairie 60 Comment
  SBBG66372  Linaria vulgaris S. W. Hutchinson -Jun-1925 Humboldt beyond Eureka Comment
  SD37712  Linaria vulgaris Edith A. Purer 1932-7-30 Humboldt Orick, roadside Comment
  HSC15799  Linum bienne John A. Dubois 1962-5-12 13 Humboldt 20 mi. E of Arcata Comment
  UC668020  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 B Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC45233  Listera convallarioides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3604 Humboldt Alder Springs 1524 Comment
  HSC37702  Listera cordata var. nephrophylla M. Mesler, J. D. Ackerman 1976-4-28 755 Humboldt 1 mi. E of old Hwy. 299 and Korbel turnoff, 1.5-2 mi. from Blue Lake, Simpson Demonstration Forest Comment
  JEPS37741  Lithocarpus densiflorus W. L. Jepson 1902-6 2138 Humboldt Bear River Range Comment
  JEPS46624  Lithocarpus densiflorus W. L. Jepson Aug 1902 Humboldt Briceland Comment
  SACT002876  Lithocarpus densiflorus C. White 1962-5-13 Humboldt Redwood forest along HIghway 299, 16 miles east of Arcata, ca. Comment
  SACT002878  Lithocarpus densiflorus D. McIntosh, L. Sanny 1959-3-1 Humboldt Densely covered hillside Comment
  POM106448  Lithocarpus densiflorus var. densiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA697654  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  HSC70567  Lithophragma heterophyllum M. A. Baker 1980-7-19 3022 Humboldt Near Bret Hole. 1814 Comment
  RSA183524  Lithophragma heterophyllum D. E. Anderson 1965-5-8 3649 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC1223120  Logfia filaginoides Joseph P. Tracy 1947-5-24 17695 Humboldt on rocky cliff known as Devil's Canyon Comment
  HSC61764  Logfia gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan; 1 mi. above Pecwan on old road, S side Comment
  HSC79445  Lolium perenne Kenneth Clark 1980-5-10 640 Humboldt Sheltor Cove, above Dead Man's Gulch. 122 Comment
  RSA728076  Lolium perenne Gary D. Wallace 1979-6-24 1860 Humboldt Near Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  UC183629  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothills on n.w. slope Buck Mt.; Northern Coast Ranges, Buck Mt. 762 Comment
  UC642280  Lomatium dissectum var. dissectum Joseph P. Tracy 1930-6-29 8808 Humboldt lower foothills on n.w. slope Buck Mt.; Northern Coast Ranges, Buck Mt. 762 Comment
  HSC50942  Lomatium macrocarpum G. L. Clifton, Overton 1979-6-3 3765 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  HSC35032  Lomatium utriculatum Thomas W. Nelson, James Nelson 1975-5-24 1858 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC45626  Lomatium utriculatum Diane L. Reed 1978-5-27 133 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  JEPS14166  Lomatium utriculatum Lincoln Constance 1934-5-29 718 Humboldt Bull Creek Region, S. Fork Eel R., Upper Look Prairie 365 Comment
  UC1186378  Lomatium utriculatum R. Ornduff 1960-6-1 6182 Humboldt ca. 6 mi. e. Garberville (on rd. to Alder Point) Comment
  UC642350  Lomatium utriculatum Joseph P. Tracy 1930-6-29 8814 Humboldt lower foothills of its n.w. slope Buck Mt. 762 Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  UC441279  Lonicera conjugialis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5861 Humboldt Trinity Summit Comment
  CAS-BOT-BC240474  Lonicera hispidula A. A. Heller 1923-7-10 13799 Humboldt Along a small stream emptying into the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  RSA696526  Lonicera hispidula var. vacillans J. R. Bruff 1937-8-17 925 Humboldt Richardson Grove. Comment
  HSC90392  Lonicera involucrata Jean Hanson 1981-5-10 143 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island. Comment
  HSC63083  Lonicera involucrata var. ledebourii David Wheeler 1979-4-20 71 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  UC1239558  Lonicera involucrata var. ledebourii Joseph P. Tracy 1933-5-20 12219 Humboldt Capetown Bear River 30 Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  JEPS55515  Lotus humistratus Mrs. M. H. Manning 1901-5 69 Humboldt near Hupa Comment
  UC162805  Lotus humistratus Joseph P. Tracy 1908-6 2701 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzne River 762 Comment
  UC1197299  Lotus micranthus Joseph P. Tracy 1919-5-31 5146 Humboldt near Willow Creek (hillslopes at w side of Trinity River in valley of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC495717  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET12154263  Lotus purshianus L. K. Henry 1971-1 s.n. Humboldt along rt 36, 2miE of Dinsmore in Six Rivers National Forest Comment
  UC495722  Lotus purshianus var. purshianus Joseph P. Tracy 1930-7-23 9122 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC71596  Lotus unifoliolatus var. unifoliolatus M. A. Baker 1980-6-26 2407 Humboldt Near Sims Creek 610 Comment
  HSC58675  Lupinus adsurgens var. undulatus Gilbert Muth 1979-8-1 12180 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC75509  Lupinus albicaulis J. O. Sawyer, R. J. Cole 1977-7-3 30016 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC302117  Lupinus albicaulis var. shastensis Joseph P. Tracy 1926-5-15 7495 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1223271  Lupinus albifrons Joseph P. Tracy 1939-5-14 16289 Humboldt opposite Buck Mountain (near Dinsmore's); Van Duzen River, near Dinsmore's 762 Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 Comment
  UC1716061  Lupinus arboreus M. S. Taylor 1990-8-22 6070 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  UCSB23856  Lupinus arboreus Haller, John 1967-6-17 Humboldt At Clam Beach County Park; U.S. Highway 101, about 10 miles north of Arcata Comment
  HSC104446  Lupinus bicolor Jeff Barrett 2009-5-8 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC14790  Lupinus bicolor J. R. Woodside 1963-5-19 1 Humboldt 1 1/4 mi. N of Fairhaven Comment
  BLMAR611  Lupinus bicolor Jennifer Wheeler 2011-4-22 611 Humboldt King range, Strawberry Rock 243 Comment
  RSA104683  Lupinus densiflorus var. densiflorus Joseph P. Tracy 1911-7-4 3280 Humboldt Valley of Trinity River near mouth of Willow Creek. 152 Comment
  UC169050  Lupinus formosus Joseph P. Tracy 1912-7-4 3729 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  SEINET12154563  Lupinus latifolius J. P. Tracy 1936-1 15036 Humboldt Grouse Mtn 1524 Comment
  UC205479  Lupinus latifolius var. latifolius Joseph P. Tracy 1919-5-31 5174 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, Trinity River, along Willow Creek 152 Comment
  UC1223292  Lupinus latifolius var. viridifolius Joseph P. Tracy 1939-4-29 16252 Humboldt 2 mi below Orleans (nw side Klamath River); Klamath River, below Orleans 1219 Comment
  RSA21447  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt 20 mi. north of Bridgeville on road to Kneeland. 457 Comment
  JEPS85690  Lupinus rivularis W. L. Jepson 1936-8-17 17929 Humboldt 3 mi s Fields Landing (s of Stills Ranch); s of Fields Landing, s of Stills Ranch Comment
  POM304177  Lupinus rivularis Ynez Whilton Winblad 1941-6-28 s.n. Humboldt Between Orick and Crescent City. Comment
  RSA95499  Lupinus rivularis L. S. Rose 1954-4-24 54012 Humboldt Garberville 152 Comment
  UC503017  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 1/2 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC49993  Lupinus sellulus var. artulus M. A. Baker 1979-6-7 791 Humboldt Telescope Peak 1250 Comment
  RSA170274  Lupinus sellulus var. artulus Joseph P. Tracy 1918-7-5 5021 Humboldt White Thorn Valley. 305 Comment
  HSC102922  Luzula M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1001 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  BLMAR289  Luzula comosa Jennifer Anthony-Wheeler 2000-4-18 289 Humboldt King range, growing on rocky ridgeline, outcrop/vista in millcrk forest 402 Comment
  HSC98824  Luzula comosa Cara Witte 2007-5-24 117 Humboldt Along National Forest 1. Approximately 1 mile south of intersection to Horse Mountain Mine and Communication Towers. 1412 Comment
  UC249749  Luzula macrantha Joseph P. Tracy 1923-6-3 6257 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  CAS-BOT-BC441226  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain 1432 Comment
  HSC39164  Luzula parviflora D. E. Anderson, J. P. Smith 1971-6-28 - 1239 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC58033  Luzula parviflora G. L. Clifton 1979-7-31 11867 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC58241  Luzula parviflora G. L. Clifton, Griswold 1979-8-2 12406 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1152125  Luzula parviflora Joseph P. Tracy 1930-7-17 8973 Humboldt near McKay camp; South Fork Mountain, near McKay Camp 1676 Comment
  UC1152089  Luzula parviflora Joseph P. Tracy 1951-6-26 19545 Humboldt woods at Snow Camp; woods at Snow Camp Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  UCD23453  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  SBBG788  Lysichiton americanus H. and M. Dearing 1939-5-25 3443 Humboldt near Samoa Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  POM68322  Lysichiton americanus Marcus E. Jones 1924-05 s.n. Humboldt Scotia. [county not specified] Comment
Read comments
Dec 31 2015
  CAS-BOT-BC342801  Madia elegans Ella Dales Cantelow 1938-10-26 2182 Humboldt Near Red Cap Creek, s.w. of Orleans Comment
  HSC49904  Madia exigua Maralyn O'Meara 1973-6-12 203 Humboldt S-facing slope Comment
  CAS-BOT-BC343014  Madia gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4755 Humboldt Dinsmores Comment
  CAS-BOT-BC343020  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CAS-BOT-BC343027  Madia gracilis Doris K. Kildale 1928-6-24 5282 Humboldt Horse Mountain 914 Comment
  UC166273  Madia gracilis Joseph P. Tracy 1901-7-31 1236 Humboldt near Hydesville 60 Comment
  POM54277  Madia gracilis subsp. gracilis M. H. Manning 1902-06 s.n. Humboldt Hupa Comment
  CAS-BOT-BC343589  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  JEPS7506  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt sw slope slopes fronting the ocean 3 mi s point of cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC1052187  Madia sativa J. L. Meyer 1954-10-11 29 Humboldt 3 mi n Blocksburg; Quadrangle 29A3 457 Comment
  UC1069897  Madia sativa H. L. Person 1932-8-15 Humboldt Korbel Eureka Quadrangle Comment
  UC1199398  Madia sativa Joseph P. Tracy 1936-6-9 14896 Humboldt at Domingo Hill; North Coast Region, Cape Mendocino 213 Comment
  RSA89891  Mahonia nervosa E. K. Balls, P. C. Everett 1953-10-13 18655 Humboldt 17.4 mi. E of jct Hwys 101 and 299 above Blue Lake. 274 Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  CAS-BOT-BC508516  Maianthemum dilatatum H. E. Parks 1932-5-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  HSC15599  Maianthemum dilatatum D. B. Bader 1963-5-1 43 Humboldt Second of the Clam Beach lagoons N end, W of Hwy. 101 Comment
  HSC22058  Maianthemum dilatatum D. R. Becker 1966-5-7 47 Humboldt By Eureka Municipal Golf Course, 0.5 mi. E of F and Alder Sts. 9 Comment
  SEINET3992237  Maianthemum dilatatum C. O. Baker 1962-5-7 Humboldt 2 miles south of Trinidad along Hwy 101. Comment
  CHSC24724  Maianthemum racemosum G. Strang 1976-4-10 7 Humboldt 1.2 mi. e of Hydesville, s side of highway. 45 Comment
  CAS-BOT-BC511458  Maianthemum racemosum subsp. amplexicaule Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  RSA0009527  Maianthemum racemosum subsp. amplexicaule Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA347055  Maianthemum racemosum subsp. amplexicaule Lyman Benson 1928-7-12 494 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  RSA377722  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  CAS-BOT-BC347414  Malacothrix floccifera L. R. Abrams 1916-7-11 6063 Humboldt Mouth of Grizzly Creek between Bridgeville and Fortuna on Van Duzon [Duzen] River Comment
  HSC98021  Malacothrix floccifera Cara Witte 2007-7-8 427 Humboldt Board Camp Mountain. Pack trail 4N26. 1/2 mile from Tri Board Camp intersection. 1536 Comment
  UC1223205  Malacothrix floccifera Joseph P. Tracy 1950-6-15 18784 Humboldt 7 mi n Harris (Jenk's Ranch) Comment
  UC1198759  Malus fusca J. P. Tracy 1901-5-12 1090 Humboldt immediate vicinity Eureka 0 Comment
  UC57530  Malus fusca Miss E. E. Tracy Nov 1901 Humboldt Eureka Comment
Read comments
Jun 17 2020
  UC668145  Malva neglecta Joseph P. Tracy 1937-9-6 15320 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC902195  Malva nicaeensis Joseph P. Tracy 1946-11-10 17662 Humboldt Trinidad 3 Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  HSC59209  Marah oregana Terry Roth 1979-5-26 89 Humboldt Arcata, Jct. of Western Ave. and Grant Ave. Comment
  HSC6013  Matricaria discoidea V. G. Vieira 1963-5-2 40 Humboldt Butler Valley Ranch Comment
  UC1103429  Medicago polymorpha Joseph P. Tracy 1934-3-25 13169 Humboldt Blue Slide Van Duzen River 91 Comment
  UC673065  Medicago sativa Joseph P. Tracy 1934-7-15 13407 Humboldt 2 mi s Fields Landing; Humboldt Bay Region 9 Comment
  HSC10333  Melica californica DWC 1956-6-5 15 Humboldt Ettersburg. Comment
  JEPS75422  Melica geyeri W. L. Jepson 1932-7-30 16458 Humboldt Bull Creek 121 Comment
  BLMAR525  Melica harfordii Jennifer Wheeler 2009-6-23 525 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC281324  Melica harfordii Doris K. Kildale 1928-6-24 5287 Humboldt Horse Mountain 914 Comment
  BLMAR755  Melica subulata Jennifer Wheeler 2004-4-30 755 Humboldt King Range, Along Telegraph Ridge 670 Comment
  UCD125071  Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt Field's Landing. 2 miles south of town. 6 Comment
  HSC14252  Mentha canadensis H. E. Parks, S. T. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  RSA21020  Mentha canadensis Carl B. Wolf 1937-9-12 9320 Humboldt Big Lagoon, south side along Redwood Hwy 6 Comment
  UC630630  Mentzelia dispersa Joseph P. Tracy 1939-8-16 16421 Humboldt Grouse Mountain 1524 Comment
  UCR37537  Menziesia ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., east of HSU 168 Comment
  SEINET7887162 Image available Micropus californicus Unknown 1942-1 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  CHSC35518  Micropus californicus var. californicus Thomas Nelson; James Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC427865  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt ridges above Laribee Valley Comment
  UC1223203  Microseris bigelovii Joseph P. Tracy 1938-5-31 18014 Humboldt near Alder Point (along road to Harris, 1 mi sw) Comment
  UC1239520  Microseris bigelovii Joseph P. Tracy 1911-5-30 3203 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  JEPS36130  Microseris laciniata subsp. laciniata W. L. Jepson 1934-5-8 16720 Humboldt Redway n South Fork Eel River; Redway Comment
  UC538045  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt n slope South Fork Mt. (Humboldt-Trinity Counties) 1524 Comment
  HSC32151  Microsteris gracilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5613 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC50571  Microsteris gracilis G. L. Clifton, Griswold 1979-8-1 12061 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC39618  Mimulus breweri Thomas W. Nelson, Jane P. Nelson 1976-6-15 2722 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  SBBG66765  Mimulus dentatus L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  UC582705  Mimulus grandis Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  UC1222805  Mimulus grandis Joseph P. Tracy 1950-6-8 18745 Humboldt 1 mi e Cape Mendocino (near Capetown); Cape Ridge 152 Comment
  UC741471  Mimulus grandis F. W. Hunnewell 1925-7-21 9744 Humboldt n Eureka Comment
  BLMAR73  Mimulus guttatus Jennifer Anthony-Wheeler 1994-5-25 73 Humboldt King range, growing along lighthse rd 1/4 mi from Mattole beach 6 Comment
  HSC20729  Mimulus guttatus D. E. Anderson 1961-8-25 1741 Humboldt 1.5 mi. S of Trinidad Comment
  HSC20754  Mimulus guttatus D. E. Anderson 1963-5-18 2442 Humboldt 1.4 mi. W of Berry Summit 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
  HSC31742  Mimulus guttatus Donald Spalinger 1974-5-12 59 Humboldt Bald Hills Rd., 1.5 mi. E from junction with Hwy. 101 229 Comment
  POM273242  Mimulus guttatus Lyman Benson 1928-7-10 453 Humboldt Eureka, along ocean bluffs. Comment
  RSA555245  Mimulus guttatus Robert F. Thorne, Percy C. Everett 1965-8-9 35317 Humboldt Clam Beach County Park: along highway. 3 Comment
  SEINET4678005  Mimulus guttatus Jan G. Cooper 1977-6-22 59 Humboldt Mouth of Mattole River along base of cliff. 1/4 mile away from the ocean.; 0 Comment
  HSC85939  Mimulus kelloggii Susan Carter, Eric May, Sarah McNaull 1987-3-7 7 Humboldt 8 mi. SSE of Salyer on Co. Rd. 447, F.S. Rd. 5N03, trail 6E23; E of South Fork of Trinity River 457 Comment
  HSC75474  Mimulus moschatus J. O. Sawyer 1980-7-18 3621 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC44775  Mimulus moschatus Thomas W. Nelson, Jane Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs 1524 Comment
  HSC44829  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3598 Humboldt Margin of pond above Alder Springs 1585 Comment
  UC147917  Mimulus nasutus Joseph P. Tracy 1903-5-22 1883 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC668122  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  RSA12523  Minuartia douglasii C. B. Wolf 1934-7-3 5913 Humboldt 21 miles from Orick on road to Weitchpec Road. Comment
  HSC40009  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2905 Humboldt Along ridge N of Bear Creek. 1463 Comment
  JEPS87058  Minuartia nuttallii subsp. gregaria Dean W. Taylor 1991-8-15 12294 Humboldt ridge 1 mi w Horse Mountain; North Coast Ranges 1493 Comment
  UC668117  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1933-7-25 12829 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC433009  Mitella diversifolia J. H. Thomas 1949-6-13 911 Humboldt Between Le Perron Flat and Whitey's Peak, along trail. East of town of Orleans. 1371 Comment
  HSC64876  Mitella ovalis J. P. Smith 1973-5-26 6849 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1197971  Modiola caroliniana Joseph P. Tracy 1942-5-16 17333 Humboldt Garberville 152 Comment
  HSC49983  Moehringia macrophylla M. A. Baker 1979-6-7 788 Humboldt N bank of road to Snow Mtn. 610 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  CAS-BOT-BC215570  Monardella odoratissima subsp. pallida Carl B. Wolf 1937-8-13 9269 Humboldt 12 mi. E. of Hoopa Valley on new road towards Trinity Summit, North Coast Range 1676 Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1239683  Monardella sheltonii Joseph P. Tracy 1912-7-26 3867 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC220259  Monardella sheltonii Henry M. Pollard 1948-7-19 s.n. Humboldt Between Orleans and Van Fleet ranch Comment
  CAS-BOT-BC220517  Monardella villosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA0022806  Monardella villosa Carl B. Wolf 1937-8-13 9223 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC203967  Monardella villosa subsp. villosa Joseph P. Tracy 1918-7-2 4984 Humboldt Mattole Valley, mouth of Honey Dew Creek; Northern Coast Ranges 152 Comment
  SJSU2518  Monotropa hypopitys H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  UC673011  Montia diffusa Joseph P. Tracy 1930-8-24 9165 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC444802  Montia diffusa Don Hagar 1957-5-21 59 Humboldt Brush Mountain, 3.5 miles southwest of Willow Creek 853 Comment
  CAS-BOT-BC445158  Montia parvifolia W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  HSC55061  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11613 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC64307  Montia parvifolia Steve Selva 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC16105  Morella californica D. E. Anderson 1961-9-13 1805 Humboldt Big Lagoon County Park Comment
  POM257954  Muhlenbergia filiformis Joseph P. Tracy 8920 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  HSC27886  Myosotis sylvatica Clifton Raymond Chesbrough 1973-6-19 74 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC78084  Myosurus minimus L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 718 Humboldt N Spit of Humboldt Bay on BLM land 3 Comment
  JEPS30071  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  UC146196  Myrica californica J. P. Tracy 1906-8-18 2544 Humboldt immediate vicinity Eureka 0 Comment
  RSA461902  Myrica californica H. E. McMinn 1931-6-28 2456 Humboldt Orick to Requa Comment
  CAS-BOT-BC60346  Nasturtium officinale Doris K. Kildale 1927-6-25 3555 Humboldt Shelter Cove. Comment
  HSC6872  Nasturtium officinale D. E. Anderson 1962-3-24 1947 Humboldt Along Turner Rd. Comment
  HSC102140  Navarretia capillaris M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1044 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC96212  Navarretia capillaris April A. Allard, Gregory O'Connell 2005-6-15 12 Humboldt NE of Grouse Mtn. 1447 Comment
  HSC76562  Navarretia divaricata var. divaricata Denis Kearns 1981-7-22 324 Humboldt Near Whiteys Peak. 1487 Comment
  UC146173  Navarretia intertexta Joseph P. Tracy 1908-6 2799 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1198606  Navarretia intertexta Joseph P. Tracy 1936-6-10 14934 Humboldt w of mouth South Fork of Trinity River; South Fork of Trinity River 304 Comment
  HSC96932  Navarretia intertexta subsp. propinqua Elizabeth Kimbrough, Whitney Meier 2007-6-13 9 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  UC1197903  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1947-7-9 17859 Humboldt Horse Mountain 1432 Comment
  SEINET12279161  Navarretia pubescens J. P. Tracy 1950-1 18861 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  UC1198528  Navarretia squarrosa Joseph P. Tracy 1927-7-24 8293 Humboldt Upper Mattole 152 Comment
  UC908873  Navarretia squarrosa Joseph P. Tracy 1936-8-23 15166 Humboldt vicinity Carlotta 30 Comment
  UC908184  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  SEINET10873102  Nemacladus capillaris Tracy 1908-6-27 TRACY 2842 Humboldt Northwest slope of Buck Mountain 1219 Comment
  UC582718  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Willow Creek , at Willow Creek (Trinity River Valley) 152 Comment
  CAS-BOT-BC7214  Nemophila macrocarpa William Wightman Price 1890-7-1 s.n. Humboldt Jarnagan Comment
  UC1005677  Nemophila menziesii Frank W. Gould 1939-5-30 835 Humboldt about 25 mi due e Eureka (near top Horse Mountain, near ski-hut); near top Horse Mountain, e of Eureka 1100 Comment
  UC1222905  Nemophila menziesii Joseph P. Tracy 1950-4-20 18609 Humboldt 1/2 mi w Dinsmore's; w of Dinsmore's Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  UC24262  Nemophila menziesii var. atomaria Joseph Burtt Davy and Walter C. Blasdale 1899-5 5739 Humboldt Hoopa Valley North-Western California, Hoopa Valley Comment
  HSC48844  Nemophila parviflora Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 43 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  JEPS2982  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 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
  UC562594  Nemophila pedunculata Joseph P. Tracy 1927-4-2 7873 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  UC562589  Nemophila pedunculata Joseph P. Tracy 1936-6-17 14957 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, , Burr Valley 1066 Comment
  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
  HSC6971  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 mi. S of Hoopa 122 Comment
  HSC98107  Noccaea fendleri subsp. glauca Cara Witte 2007-6-20 314 Humboldt Forest Service Road 5N09. 1/4 mile east of intersection with National Forest 1. 1394 Comment
  HSC54573  Notholithocarpus densiflorus Overton, Butler 1979-7-24 9607 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UCR45372  Notholithocarpus densiflorus var. densiflorus Barry Silver 1986-4-13 505 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  CAS-BOT-BC400074  Nuphar polysepala L. R. Abrams 1918-6-16 7160 Humboldt Willow Creek 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
  JEPS122  Nuttallanthus texanus Lincoln Constance 1934-6-22 921 Humboldt South Fork Eel River, Summit Grasshopper Peak, down Canoe Creek, road to Redwood Hwy, thence n to Dyerville Canoe Creek; Bull Creek Region, South Fork Eel River, Grasshopper Peak, C Comment
  CAS-BOT-BC142296  Oemleria cerasiformis Doris K. Kildale 1926-3-2 1862 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC100095  Oemleria cerasiformis J. P. Smith, & J. O. Sawyer 2010-3-22 12712 Humboldt Along Hwy. 36, E of Dinsmore. 780 Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  HSC79334  Oemleria cerasiformis D. H. Norris 1970-5-20 12218 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  UC666835  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15250 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC90660  Oenanthe sarmentosa Gail Newton 1982-6-10 3639 Humboldt Elk River Wildlife Area, Eureka Comment
  UC314582  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  HSC23205  Oenanthe sarmentosa Jana Kattenhorn 1971-10-3 263 Humboldt Little River Rd. N of Mckinleyville turn off of Hwy. 101 Comment
  UC642344  Oenanthe sarmentosa Joseph P. Tracy 1938-8-20 16123 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  HSC16486  Oenothera glazioviana Jerry Parker 1968-10-1 78 Humboldt 0.5 mi. N of Dows Prairie School Comment
  HSC16524  Oenothera glazioviana David K. Smith 1968-11-20 67 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  SEINET186016  Orobanche californica subsp. californica Joseph P. Tracy, H. E. Parks 1924-8-3 6761 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC499671  Orobanche californica subsp. californica Ira L. Wiggins 1932-7-19 5894 Humboldt Near the beach at south end of Big Lagoon Comment
  RSA0059232  Orobanche californica subsp. californica Harold E. Parks, Joseph P. Tracy 1924-8-3 6761 Humboldt Big Lagoon. 6 Comment
  UC1245403  Orobanche fasciculata Joseph T. Gregory 1935-7-30 860 Humboldt Salmon Summit. Comment
  HSC48820  Orogenia fusiformis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 34 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC21582  Osmorhiza berteroi John A. DuBois 1962-5-23 29 Humboldt 19 mi. E of Arcata Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  UC906649  Osmorhiza occidentalis Joseph P. Tracy 1946-5-19 17351 Humboldt Kneeland Prairie 762 Comment
  HSC33182  Osmorhiza purpurea Thomas W. Nelson 1974-4-20 1185 Humboldt Near Elk Head N of Trinidad Comment
  UC1103422  Oxalis albicans subsp. pilosa J. P. Tracy 1901-6-16 1149 Humboldt back of Bucksport 0 Comment
  HSC12755  Oxalis corniculata M. J. Athey 1970-11-22 23 Humboldt In Arcata along G street in front of P G & E Comment
  HSC16703  Oxalis oregana D. E. Anderson 1961-8-11 1726 Humboldt E of Humboldt State University campus 30 Comment
  SD90203  Oxalis oregana Benjamin C. Stone 1952-6-20 113 Humboldt Holmes, on Highway 101 by Founders, Tree. Comment
  SEINET3347650 Image available Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt High Prairie Creek, east of Bald Mt. Comment
  UC170010  Oxalis oregana Harley P. Chandler 1901-6-30 1188 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  UC598569  Oxalis oregana W. K. Fisher 1899-6-12 48 Humboldt Humboldt Bay Comment
  CAS-BOT-BC318150  Packera bolanderi var. bolanderi J. Burtt Davy; W. C. Blasdale 1899-6-12 5453 Humboldt near Elk Prairie Comment
  HSC95156  Packera bolanderi var. bolanderi Gordon Leppig 2002-6-27 1763 Humboldt Grizzly Creek State Park; 300 m NW of campground on trailside above Grizzly Creek 100 Comment
  UCD134738  Packera bolanderi var. bolanderi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC1145145  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC253708  Panicum capillare Peter Rubtzoff 1968-9-4 5956 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  UCD89396  Panicum capillare A. H. Christensen 1916-10-1 s.n. Humboldt Humboldt County. Comment
  HSC13258  Parapholis incurva D. E. Anderson 1965-6-10 3794 Humboldt Harbor area of Eureka. Comment
  RSA246893  Parapholis incurva R. F. Thorne, P. Everett 1965-8-8 35274 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC95379  Parentucellia viscosa Andrea Pickart 2002-8-7 195 Humboldt Arcata Bottoms, along Lanphere Rd. 20 Comment
  POM230334  Parentucellia viscosa J. T. Howell 1937-7-31 13719 Humboldt 3 miles west of Korbel, Comment
  POM288009  Pastinaca sativa Lyman Benson 1928-7-12 811 Humboldt Weott Ranger Station. 61 Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  UC1239631  Pectocarya penicillata Joseph P. Tracy 1911-7-10 3484 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  UC1000449  Pedicularis densiflora Joseph P. Tracy 1942-5-16 17351 Humboldt Garberville 304 Comment
  UC169090  Pedicularis densiflora Mrs. M. H. Manning 1902-2 Humboldt near Hupa Comment
  HSC91338  Pedicularis densiflora Bobbi Schnell, Andrea Begnoche, Leonel Arguello 1987-3-14 Humboldt Gray Falls Campground Comment
  JEPS3357  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC38091  Pellaea mucronata Thomas W. Nelson, James Nelson 1976-5-30 2612 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC75553  Penstemon anguineus J. O. Sawyer, R. J. Cole 1977-7-3 3010 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1586978  Penstemon anguineus Juha Pykala and D. H. Norris 1987-6-11 1564 Humboldt sw North Trinity Mountain (North Trinity Mountain Wilderness); North Trinity Mountain Wilderness Comment
  RSA60491  Penstemon deustus subsp. deustus John H. Thomas 1949-6-12 902 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  HSC73566  Penstemon laetus subsp. sagittatus Gail Newton 1980-7-14 1503 Humboldt Near Last Chance Ridge 1219 Comment
  HSC41280  Penstemon laetus subsp. sagittatus Brad Klipfel 1974-6-25 441 Humboldt Horse Mtn., along ridge running to the E of Horse Mtn. proper Comment
  HSC56119  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11894 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 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
  NY640969  Penstemon purpusii J. P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  HSC79535  Pentagramma triangularis Kenneth Clark 1980-6-14 693 Humboldt On Greywacke outcrop, N fork Dead Man's Gulch 91 Comment
  CAS-BOT-BC71619  Pentagramma triangularis subsp. triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt E side of road, 1 mi. S of Garberville Comment
  UC642250  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1932-7-14 10542 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC906650  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1942-9-20 17324 Humboldt 2 mi s Fields Landing 3 Comment
  HSC35701  Perideridia kelloggii Thomas W. Nelson, B. Reinhardt 1975-7-30 2116 Humboldt E of Pilot Rock Comment
  CHSC79802  Persicaria capitata Gordon Leppig; Sylvia Leppig 2000-4-16 1298 Humboldt Arcata. Corner 17th and J St. base of curb. UTM zone 10, N4525 E408. 60 Comment
  HSC17528  Persicaria maculosa W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  UC1239507  Petasites frigidus var. palmatus Joseph P. Tracy 1937-7-2 15405 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  CDA20465  Petrorhagia dubia P. Haggard 2003-9-15 PDR 1285905 Humboldt Northwestern California; Klamath River near Orleans. 0 Comment
  JEPS1436  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek Bluff Northern Coast Ranges, Eel River 60 Comment
  UC615274  Phacelia bolanderi Beryl O. Schreiber 1932-7-12 373 Humboldt near Klamath Comment
  UC1222903  Phacelia californica Joseph P. Tracy 1950-6-8 18763 Humboldt e slope from summit Domingo Hill (near Petrolia) Comment
  HSC98877  Phacelia egena Cara Witte 2007-5-29 137 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  UC1222899  Phacelia mutabilis Joseph P. Tracy 1951-6-26 19564 Humboldt Snow Camp 1402 Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  RSA170268  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1949-7-7 18333 Humboldt Table Bluff. 91 Comment
  UC671690  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  HSC58070  Phacelia procera G. L. Clifton, Griswold 1979-8-1 11955 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC258866  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt Around Humboldt Bay. Along highway across Salmon Creek flats 6 Comment
  UC161560  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is a tributary of Trinity River) 304 Comment
  UC492217  Philadelphus lewisii Joseph P. Tracy 1929-7-27 8646 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  HSC20255  Philadelphus lewisii H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  HSC8515  Phleum pratense True Hoyle 1967-7-24 28967 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  RSA44530  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  RSA183512  Phlox adsurgens D. E. Anderson 1965-5-15 3693 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  JEPS71126  Phlox gracilis Joseph P. Tracy 1933-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  POM161067  Phyllospadix torreyi H. E. Parks 1924-8-7 s.n. Humboldt Trinidad. Comment
  CAS-BOT-BC140587  Physocarpus capitatus Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  UCSB2830  Physocarpus capitatus Phillips, Priscilla 1958-6-9 Humboldt Biship Pina Lodge, 2 mi. n. of Trinidad 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
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  HSC89481  Picea sitchensis P. A. Daly 1986-3-12 72 Humboldt Trinidad Head, along trail 61 Comment
  NY34417  Picea sitchensis A. Kellogg 1868-1 935 Humboldt Comment
  SJSU2223  Picea sitchensis H. L. Buckalew 1959-7-10 Humboldt Prairie Creek Redwoods State Park, northweastern Humbollt County Comment
  CAS-BOT-BC78289  Pinus attenuata A. A. Heller 1917-7-7 12811 Humboldt Alder Springs grade below Rattlesnake [spring] Spring Comment
  UC902029  Pinus jeffreyi Joseph P. Tracy 1949-7-19 18387 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC73116  Pinus lambertiana C. D. Duncan 1920-9-1 s.n. Humboldt East side of Hoope Valley Comment
  UC1600428  Pinus ponderosa Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC63995  Pinus sabiniana Mrs. M. H. Manning Apr 1 1902-May 1 1902 Humboldt Hupa 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
  JEPS60958  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  HSC79417  Plagiobothrys nothofulvus Kenneth Clark 1980-4-18 585 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  UC708087  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  UC585994  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  UC1196130  Plantago elongata Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16660 Humboldt w of Table Bluff 6 Comment
  UC1151994  Plantago erecta Joseph P. Tracy 1950-6-8 18730 Humboldt Bear River Bridge 609 Comment
  UC1196146  Plantago erecta Joseph P. Tracy 1905-4-30 2174 Humboldt Fairhaven Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC585989  Plantago major Joseph P. Tracy 1931-9-13 9671 Humboldt Mouth of Eel River 6 Comment
  HSC12018  Plantago major Wilbur Peterson 1970-10-28 93 Humboldt 1 mi. W of Blue Lake near R/R crossing Comment
  UC1196131  Plantago maritima var. californica Joseph P. Tracy 1927-6-8 8108 Humboldt Trinidad 30 Comment
  SEINET10297967  Platanthera dilatata var. dilatata Unknown 1965-8-9 s.n. Humboldt BIG LAGOON: Elev. c. 10 ft Comment
  UC666990  Platanthera leucostachys Joseph P. Tracy 1932-7-16 10609 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  JEPS49012  Platanthera sparsiflora Hilda W. Grinnell 1932-7-19 28 Humboldt boggy meadows near Camp McKay; So. Fork Mt. Comment
  HSC16799  Platystemon californicus P. N. Slattery 1963-4-27 42 Humboldt Clam Beach Comment
  HSC37931  Platystemon californicus Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  JEPS5131  Plectritis brachystemon Lincoln Constance 1934-6-3 802 Humboldt 1 mi n of Dyerville (Road from High Rock (on Redwood Highway) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC33743  Plectritis congesta A. Montalvo 1975-5-24 279 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UCD137534  Plectritis congesta R. N. Raynor 1935-1 s.n. Humboldt Exact location unknown. Comment
  HSC21693  Plectritis congesta subsp. brachystemon R. T. Forester 1963-4-23 21 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC26333  Plectritis congesta subsp. congesta Thomas W. Nelson 1971-4-12 375 Humboldt S spit of Humboldt Bay. Comment
  CAS-BOT-BC458164  Pleuricospora fimbriolata Doris K. Kildale 1927-8-7 3858 Humboldt Lawrence Creek 609 Comment
  HSC75692  Pleuropogon refractus Bill Copeland 1980-6-26 303 Humboldt Near Murphy Meadow 914 Comment
  HSC99458  Pleuropogon refractus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 112 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
  RSA183537  Pleuropogon refractus H. S. Logsdon 1964-5-10 12 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  RSA10119  Poa Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC10626  Poa annua William J. Ferlatte 1963-5-8 39 Humboldt Near 11th and B Sts., Arcata. Comment
  HSC26347  Poa annua T. O. Osborne 1970-4-5 78 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  HSC89595  Poa annua M. Roantree 1985-5-2 29 Humboldt S side of Trinidad Head summit, near cross. Comment
  SEINET200845  Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp 1219 Comment
  HSC10686  Poa confinis J. P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka near bay shore. 9 Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  UC665695  Poa douglasii H. E. Parks May, 1934 4805 Humboldt Little River Lagoon Comment
  UCR80242  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  RSA10047  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge 1067 Comment
  UC249671  Poa howellii Joseph P. Tracy 1922-4-30 6014 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  HSC104392  Poa kelloggii J. Kalt, Z. Mendoza 1996-6-11 Humboldt Prairie Creek Redwoods Stae Park; 0.25 mi. SW of Elk Prairie Campground Comment
  CAS-BOT-BC254279  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  CAS-BOT-BC255941  Poa pratensis Joseph Burtt Davy; Walter C. Blasdale 1899-6-16 5554 Humboldt Scotia Comment
  HSC98173  Poa pratensis R. D. Modafferi 1965-5-13 77 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  SEINET13390783 Image available Poa pratensis A. G. Vestal 1937-6-22 s.n. Humboldt Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC102191  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1105 Humboldt Andy's Camp 1564 Comment
  HSC10714  Poa secunda subsp. secunda D. J. Wilder 1965-4-25 12 Humboldt Humboldt State College Campus, Laurel Dr. Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  HSC73572  Poa secunda subsp. secunda Gail Newton 1980-7-14 1509 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA10114  Poa trivialis Joseph P. Tracy 1926-6-12 7587 Humboldt near Quick at Davison's Ranch. 61 Comment
  HSC94146  Polycarpon tetraphyllum Gordon Leppig, Sylvia Leppig 2000-12-7 1524 Humboldt 10th and I St. in Arcata 6 Comment
  HSC54507  Polygala cornuta Overton, Butler 1979-7-23 9408 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1541611  Polygala cornuta var. cornuta Harold E. Parks 1941-7-5 Humboldt Hors Lirito Creek Trinity River 1066 Comment
  UC672974  Polygonum bistortoides Joseph P. Tracy 1930-7-16 8924 Humboldt McKay Camp South Fork Mountain 1676 Comment
  RSA152353  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt On Box Camp trail, 1/2 mile W of summit. 1677 Comment
  UC175841  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1912-7-31 3939 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  UC672957  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-7-17 9015 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1541405  Polygonum douglasii subsp. spergulariiforme H. E. Parks and J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  HSC56172  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 12065 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC419854  Polygonum polygaloides subsp. confertiflorum Alice Eastwood; John Thomas Howell 1937-6-23 4812 Humboldt Little Van Duzen River Comment
  CDA2918  Polygonum sachalinense T. C. Fuller 1968-7-3 17447 Humboldt Northeast side of Highway 101 freeway overpass, Fields Landing. 0 Comment
  UC249780  Polypodium glycyrrhiza Joseph P. Tracy 1924-3-9 6614 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC667948  Polypodium glycyrrhiza Joseph P. Tracy 1936-4-26 14804 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC76839  Polypodium glycyrrhiza M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5215 Humboldt Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi. N of Oroville. 373 Comment
  SEINET11723018  Polypodium glycyrrhiza E. A. York 1990-1-10 2671 Humboldt USGS Redwood Field Station, Arcata Comment
  CHSC19517  Polypodium scouleri J. F. Knezevich 1968-5-13 429 Humboldt Collected near Arcata above Freshwater Forest. Comment
  UC71483  Polypodium scouleri W. C. Blasdale 1896-6-2 Humboldt w Eureka Comment
  CAS-BOT-BC233072  Polypogon interruptus Joseph P. Tracy 1930-6-29 8819 Humboldt Buck Mountain, lower foothills of its NW slope 762 Comment
  UC163618  Polypogon interruptus Jos. Burtt Davy and W. C. Blasdale 1899-5 5495 Humboldt Pepperwood Comment
  UC39737  Polypogon interruptus Harley P. Chandler June, 1901 1332 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC526771  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  CHSC31286  Polypogon monspeliensis Mark Stopher 1980-7-18 121 Humboldt On banks of Elk River, south of Eureka. Comment
  HSC10844  Polypogon monspeliensis D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  HSC38921  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt 3 mi. W of Arcata Comment
  UC34073  Polypogon monspeliensis J. P. Tracy 1901-7-24 1217 Humboldt immediate vicinity Eureka 0 Comment
  RSA10061  Polypogon viridis Joseph P. Tracy 1926-7-4 7697 Humboldt [Unspecified] Comment
  JEPS24330  Polystichum californicum W. L. Jepson 1922-9-10 9460 Humboldt Garberville Comment
  HSC1156  Polystichum imbricans D. E. Anderson 1963-9-21 2832 Humboldt 0.5 mi. E of Willow Creek Comment
  HSC74743  Polystichum munitum Gail Newton 1981-8-6 2386 Humboldt Near Bug Creek 1125 Comment
  UC1440064  Polystichum munitum Danin & H. G. Baker 1960-9-2 658 c Humboldt ca. 2 mi n of Dyerville (High Rock (on W side of Eel River), along Ave. of the Giants) Comment
  HSC91600  Polystichum munitum E. Mackey 1986-10-2 Humboldt Patrick's Point State Park by trail to Agate Beach Comment
  SEINET4555668 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15050 Humboldt Bolling Grove State Park. Comment
  UC1196666  Populus trichocarpa Joseph P. Tracy 1922-10-8 6122 1/2 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC492231  Populus trichocarpa Joseph P. Tracy 1932-4-24 9800 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  JEPS394  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  UC60858  Potamogeton natans W. C. Blasdale June, 1896 Humboldt near Graham's Ranch (on Mad River); Mad River Comment
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Sep 17 2012
  CAS-BOT-BC453766  Potamogeton natans Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Near Harley place Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge Comment
  CAS-BOT-BC454089  Potamogeton pusillus subsp. tenuissimus William Anderson 1964-8-4 s.n. Humboldt Shore Acres. McKinleyville Comment
  HSC18724  Potentilla anserina subsp. pacifica S. J. Hawks 1965-5-14 66 Humboldt 2 mi. NW of McKinleyville 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
  UC585622  Potentilla anserina subsp. pacifica Joseph P. Tracy 1934-7-30 13509 Humboldt along coast in front South End of Stone Lagoon (Dry Lagoon); , in front of South End Stone Lagoon 3 Comment
  CAS-BOT-BC143073  Potentilla anserina subsp. pacifica Henry M. Pollard 1947-8-26 s.n. Humboldt Klamath Riverbed, Ferrian's Ranch (nr. Orleans) Comment
  HSC97917  Potentilla gracilis var. gracilis Cara Witte 2007-6-14 287 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  CAS-BOT-BC517509  Prosartes smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River 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
  HSC57976  Prunella vulgaris subsp. lanceolata G. L. Clifton, Griswold 1979-7-31 11700 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC102529  Prunella vulgaris var. lanceolata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1516 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC99544  Prunella vulgaris var. lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 209 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1196726  Prunella vulgaris var. lanceolata Joseph P. Tracy 1914-5-14 4424 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  POM283342  Prunella vulgaris var. lanceolata Lyman Benson 1928-7-10 443 Humboldt Rolling hills by Humboldt Bay, 4 mi. S Eureka 61 Comment
  UC1402063  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 620 -30 Humboldt Comment
  CDA3914  Prunus laurocerasus Gordon Leppig 2000-4-12 1291 Humboldt Behind Humboldt University, west of Fern Lake, Arcata. Comment
  CAS-BOT-BC154737  Prunus virginiana var. demissa H. E. McMinn 1922-8-5 356 Humboldt Along Van [Dusen] Duzen River Comment
  UC467820  Prunus virginiana var. demissa P. E. Goddard 1907-6-2 f 114 Humboldt Van Duzen Comment
  JEPS20479  Pseudognaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD134980  Pseudognaphalium ramosissimum Linda M. Barker 1976-8-2 1678 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC357447  Pseudognaphalium ramosissimum Joseph P. Tracy 1928-9-9 8506 Humboldt Northern Coast Ranges. Carlotta 60 Comment
  CAS-BOT-BC357601  Pseudognaphalium stramineum John Thomas Howell 1936-8-29 12886 Humboldt Eel River 16 miles n. of Garberville Comment
  UC604670  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 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
  HSC99550  Pseudotsuga menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 215 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET11737772  Pseudotsuga menziesii K. S. Erdman 1970-1 4792 Humboldt Redwood National Park near Holter Ridge entrance along Bald Hills Road, SE of Orick Comment
  HSC68606  Pseudotsuga menziesii var. menziesii Jacqueline Greenleaf 1980-8-12 328 Humboldt Near Becker Cabin. 1143 Comment
  CAS-BOT-BC361833  Psilocarphus oregonus Joseph P. Tracy 1938-7-5 16008 Humboldt Carlotta. By old Strong's District School House, 5 miles east of town 45 Comment
  HSC76305  Pteridium aquilinum var. pubescens Denis Kearns 1981-7-22 308 Humboldt Near Whiteys Peak. 1487 Comment
  HSC1162  Pteridium aquilinum var. pubescens R. F. Good 1962-5-23 21 Humboldt Surrounding Arcata 60 Comment
  UCD136174  Pteridium aquilinum var. pubescens K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC460605  Pyrola aphylla Doris K. Kildale 1925-6-28 840 Humboldt Laurence Creek 609 Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  UC1197570  Pyrola asarifolia Joseph P. Tracy 1917-7-8 4826 Humboldt Old Kneeland Prairie Road, around Humboldt Bay 457 Comment
  UC1197571  Pyrola asarifolia Edith Tracy 1898-7-1 248 Humboldt on Kneeland Prairie Road about 10 miles Esta of Eureka 457 Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  HSC54232  Pyrola picta Griswold, Butler 1979-7-12 7313 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  CAS-BOT-BC62629  Quercus chrysolepis T. Worley; M. Mill; F. Rosenthal 1985-5-10 59 Humboldt Grays Falls Campground 240 Comment
  CAS-BOT-BC94313  Quercus garryana Doris K. Kildale 1928-7-1 5666 Humboldt Klamath River at Bluff Creek Comment
  HSC74269  Quercus garryana M. A. Baker 1980-5-23 1371 Humboldt Near Buck Mtn. 1524 Comment
  UCD46120  Quercus garryana var. garryana John M. Tucker 1948-9-3 1849 Humboldt California, Humboldt Co.; southwest side of Horse Mountain, ca. 2 mi. south of Berry's Summit; Comment
  OBI36667  Quercus kelloggii David J. Keil 1983-7-2 17342 Humboldt 2.8 mi S of SR 299 along titlow HIll rd, SW of Willow Creek Comment
  UCD46702  Quercus kelloggii W. L. Jepson 1903-6-9 2203 Humboldt Harris Ridge. 1127 Comment
  CAS-BOT-BC104335  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi NE of Hoopa along trail to Trinity Summit from end of forest road 1463 Comment
  HSC37839  Quercus vacciniifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2245 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  HSC55598  Quercus vacciniifolia Overton, Butler 1979-7-23 9411 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UCD14015  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
  CAS-BOT-BC539321  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi from Garberville along Alderpoint Rd near the jct with Hwy 36; stop #6 215 Comment
  CAS-BOT-BC379197  Ranunculus aquatilis var. aquatilis C. C. Harris; S. K. Harris 1936-6-12 3363 Humboldt open woods, prairies and ledges on Chalk Mountain near Bridgeville Comment
  CHSC24867  Ranunculus aquatilis var. hispidulus A. D. Launer 1976-4-10 1 Humboldt In small pond, ca. .5 mi e of Church St. in Blocksburg. 487 Comment
  UC552284  Ranunculus flammula Joseph P. Tracy 1934-7-30 13499 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UC1196218  Ranunculus occidentalis J. P. Tracy 1901-5-30 1107 Humboldt Immediate vicinity of Eureka 0 Comment
  UC162860  Ranunculus occidentalis J. P. Tracy 1900-5-30 826 Humboldt Immediate vicinity of Eureka 0 Comment
  UC502921  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt Brett Hole Klamath Mountains, Trinity Summit (head) 1828 Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  UCD96942  Ranunculus occidentalis R. N. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC36501  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1890 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC76583  Ranunculus occidentalis var. occidentalis Denis Kearns 1981-7-23 408 Humboldt Near Whiteys Peak. 1524 Comment
  RSA85298  Ranunculus orthorhynchus var. platyphyllus F. W. Peirson 1923-7-11 3724 Humboldt 7 miles N of Arcata. Comment
  HSC56061  Ranunculus uncinatus G. L. Clifton, Griswold 1979-7-31 11703 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1199217  Raphanus sativus J. P. Tracy 1906-4-29 2427 Humboldt immediate vicinity of Eureka 0 Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  UC1197992  Rhamnus californica Joseph P. Tracy 1934-8-4 13556 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS42008  Rhamnus californica subsp. californica W. L. Jepson 1902-7-10 2001 Humboldt South Fork, junction of Trinity River, Martin ranch Trinity River 304 Comment
  UC1121915  Rhamnus purshiana G. T. Nordstrom Jul 1937 1424 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  UC165823  Rhamnus purshiana Joseph P. Tracy 1909-7-31 3036 Humboldt Kneeland Prairie Northern Coast Ranges 762 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
  UCD20672  Rhamnus purshiana A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute. Comment
  CAS-BOT-BC58193  Rhododendron columbianum Doris K. Kildale 1926-2-7 1500 Humboldt Big Lagoon. Comment
  CAS-BOT-BC56616  Rhododendron macrophyllum Mrs. A. H. Rodda 1932-5-20 s.n. Humboldt Redwood Highway Comment
  HSC91897  Rhododendron macrophyllum E. Mackey 1987-5-19 Humboldt Patrick's Point State Park Comment
  RSA254755  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Beside the old Kneeland Rd. Comment
  UC32620  Rhododendron macrophyllum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  UC562738  Rhododendron macrophyllum Joseph P. Tracy 1933-6-18 12609 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1197790  Rhododendron occidentale Joseph P. Tracy 1913-9-9 4402 Humboldt at Big Lagoon Big Lagoon; Northern Coast Ranges, Big Lagoon 30 Comment
  UC1197791  Rhododendron occidentale Joseph P. Tracy 1914-9-6 4615 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Region, Bald Mountain 1219 Comment
  SEINET11976085  Rhododendron occidentale H. P. Chandler 1901-1 1448 Humboldt Klamath 457 Comment
  CAS-BOT-BC200380  Rhododendron occidentale var. paludosum Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CAS-BOT-BC200387  Rhododendron occidentale var. paludosum Harley P. Chandler 1901-6-1 1448 Humboldt Klamath River 457 Comment
  CAS-BOT-BC433129  Ribes Milo S. Baker 1926-7-26 186 -'26 Humboldt Bridgeville-Red Bluff Highway, S. Fork Mt. 1066 Comment
  UC902084  Ribes bracteosum Joseph P. Tracy 1949-6-6 18299 Humboldt ne Hawkin's Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  OBI14064  Ribes divaricatum var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  CAS-BOT-BC169114  Ribes inerme var. inerme Brant Rogers; Arnold Tiehm 1978-6-2 944 Humboldt Badger Mt., Badger Creek near Badger Cabin on the E side of the Mt. - Sheldon National Wildlife Refuge 1828 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC23682  Ribes lacustre J. O. Sawyer 1971-6-14 2381 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  HSC97311  Ribes laxiflorum M. Mesler 2007-3-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  HSC40559  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-5-23 2523 Humboldt SW facing slopes 1666 Comment
  UC902099  Ribes lobbii Joseph P. Tracy 1948-9-5 18177 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC206033  Ribes menziesii E. R. Johnson 1929-8-1 11211 Humboldt Arcata, Redwood Park Comment
  HSC59571  Ribes menziesii Rick Lundquist 1979-4-22 28 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC1198928  Ribes menziesii Joseph P. Tracy 1933-3-12 10920 Humboldt Ferndale North Coast Ranges 30 Comment
  UC552240  Ribes menziesii Joseph P. Tracy 1935-3-3 13713 Humboldt Dow's Prairie 60 Comment
  HSC20325  Ribes roezlii J. Sandborg, F. Sandborg 1968-7-19 56 Humboldt Bluff Creek near Notice Creek 793 Comment
  UC1198950  Ribes roezlii var. amictum Joseph P. Tracy 1930-7-27 9111 Humboldt near Petrolia; North Coast Ranges, Mattole River 15 Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UCR45437  Ribes roezlii var. cruentum Kenneth Clark 1980-6-14 691 Humboldt Above N Fork Dead Man's Gulch 229 Comment
  HSC34626  Ribes sanguineum Pamela Bruce 1975-4-8 1 Humboldt 0.5 mi. N of School Rd. on Washington Ave. Comment
  SEINET13942792 Image available Ribes sanguineum W. R. Rogers 1967-1 233 Humboldt Essex Lane, 0.5 mile north of Hwy 299 Comment
  HSC103214  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-27 8 Humboldt Elkhead (just north of Trinidad on Stagecoach Road). 40 Comment
  HSC20342  Ribes sanguineum var. glutinosum Frances Oldridge 1945-1 Humboldt Arcata Comment
  UC154114  Ribes sanguineum var. glutinosum Joseph P. Tracy 1901-4-26 1051 Humboldt region about Humboldt Bay (Humboldt Hill); Northern Coast Region 0 Comment
  HSC103229  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-23 26 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC65697  Ribes sanguineum var. sanguineum J. P. Smith, J. O. Sawyer 1974-6-2 7653 Humboldt 1372 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  HSC84930  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  UC1222365  Romanzoffia californica Joseph P. Tracy 1950-6-15 18818 Humboldt at Huestis Rock on n.e. side Mail Ridge Comment
  UC14402  Rorippa curvisiliqua Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC492263  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC74508  Rorippa curvisiliqua Malcom A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt On southern side of the town of Blue Lake. Comment
  UC14385  Rorippa nasturtium-aquaticum Chestnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC205457  Rorippa nasturtium-aquaticum Joseph P. Tracy 1919-5-31 5169 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, along Willow Creek 152 Comment
  UCD115322  Rorippa palustris Joseph P. Tracy; H. E. Parks 1931-5-17 9425 Humboldt Trinity River near Willow Creek. 152 Comment
  CAS-BOT-BC147433  Rosa californica Ira L. Wiggins 1940-7-10 9488 Humboldt Table Bluff Comment
  BLMAR162  Rosa gymnocarpa Donald Hazlett 1994-6-7 162 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC44327  Rosa gymnocarpa Brad Klipfel 1975-6-17 667 Humboldt Horse Mtn. Comment
  SEINET200818  Rosa gymnocarpa Joseph P. Tracy 1939-8-16 16404 Humboldt Horse Mountain , In open forest of Jeffrey Pine, on red soil in serpintine belt. 1433 Comment
  HSC19626  Rosa gymnocarpa W. R. Rogers 1965-5-15 61 Humboldt Camp Bauer 1/4 mi. Korbel Comment
  CAS-BOT-BC146824  Rosa nutkana Harley P. Chandler 1901-5-1 1198 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC146825  Rosa nutkana Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC146838  Rosa nutkana L. R. Abrams; R. Bacigalupi 1922-6-25 8275 Humboldt Big Lagoon south of Orick Comment
  CAS-BOT-BC146843  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  SBBG3082  Rosa nutkana H. and M. Dearing 1939-5-26 3448 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC303026  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  JEPS45698  Rosa pisocarpa Joseph P. Tracy 1925-6-7 7079 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146878  Rosa rubiginosa Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  HSC47955  Rosa spithamea Brad Klipfel 1974-7-23 474 Humboldt Horse Mountain Comment
  HSC19673  Rubus armeniacus M. L. Stuart 1965-4-18 6 Humboldt Fern Lake Dam Comment
  POM271092  Rubus leucodermis Lyman D. Benson 1928-7-8 386 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  UC162332  Rubus leucodermis Joseph P. Tracy 1911-6-4 3235 Humboldt 5 mi from coast (along Little River); Northern Coast Region, along Little River 121 Comment
  CAS-BOT-BC147249  Rubus parviflorus Ella Dales Cantelow 1936-5-18 1403 Humboldt 5 mi. N. of Orick Comment
  HSC58061  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11937 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC70811  Rubus parviflorus Gail Newton 1980-7-23 1748 Humboldt Near Packsaddle Ridge 1463 Comment
  JEPS47711  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of Park to Grasshpper Peak (Squaw Creek) rd., South Fork Eel River) Comment
  SEINET4093648  Rubus parviflorus O. M. Clark 1932-1 707 Humboldt South Eureka. Comment
  SEINET5265376  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  UCSB30625  Rubus parviflorus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca 1/2 - 3/4 mi in on dirt road from jct. with Fickle Hill Rd, ca 1/4 mi E of junction of Fickle Hill Rd and Park Av. Arcata Comment
  BLMAR240  Rubus pensilvanicus Jennifer Anthony-Wheeler 1997-6-13 240 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 Comment
  HSC19686  Rubus spectabilis D. E. Anderson 1962-2-10 1914 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  HSC22039  Rubus spectabilis B. D. Rogers, D. E. Anderson 1965-4-1 412 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC28139  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 mi. N of Manila Comment
  UC492169  Rubus ursinus Joseph P. Tracy 1931-4-26 9339 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley at Willow Cr 152 Comment
  UC999203  Rubus ursinus H. E. Parks March 1941 Humboldt Spruce Cove , Spruce Cove (Trinidad) Comment
  UCD89721  Rubus ursinus Lindsay Clark 2008-6-23 KRC 6 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 550 Comment
  HSC99000  Rubus ursinus subsp. ursinus Cara Witte 2008-7-16 906 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  SEINET5710898  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
  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
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC45630  Rumex acetosella Diane L. Reed 1978-5-27 138 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1735899  Rumex occidentalis Dean W. Taylor 1991-9-15 12292 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  UC672927  Rumex occidentalis Joseph P. Tracy 1936-6-3 14854 Humboldt near Lack Pond; Trinity River Valley, Willow Creek 152 Comment
  UC275565  Ruppia maritima Joseph P. Tracy 1923-5-30 6248 Humboldt mouth of Little River; Northern Coast Ranges 1 Comment
  UC1116232  Sagina apetala Joseph P. Tracy 1948-4-11 17965 Humboldt 2 mi. e. Dyerville (Eel R.); Eel R. 48 Comment
  CAS-BOT-BC132708  Salix A. T. Whittemore 1980-3-15 80 -008 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  UC490587  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC129891  Salix bonplandiana M. S. Jussel 1932-5-1 s.n. Humboldt Sylvandale Comment
  JEPS14753  Salix exigua Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River Valley; Northern Coast Region 152 Comment
  UC1196605  Salix exigua var. hindsiana Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10096 Humboldt Trinity R. opposite Willow Creek; North Coast Ranges 152 Comment
  UC481301  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 969 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC490574  Salix exigua var. hindsiana Joseph P. Tracy 1932-7-31 10289 Humboldt along Eel R. from S. Fork to Scotia (mouth of Larrabee Creek); Northern Coast Ranges 60 Comment
  CAS-BOT-BC106862  Salix hookeriana W. J. Ferlatte 1967-6-13 1114 Humboldt Samoa Penn. 3 Comment
  CAS-BOT-BC107678  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10732 Humboldt Lagoon between the Mad and Little Rivers Comment
  CAS-BOT-BC107736  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107760  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon Comment
  HSC19967  Salix hookeriana J. R. Woodside 1963-2-17 45 Humboldt 1.25 mi. N of Fairhaven Comment
  HSC96357  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC96374  Salix hookeriana Gordon Leppig 1999-7-9 1186 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  POM219324  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon. 0 Comment
  UC1173622  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna Eel River (banks of river) 15 Comment
  UC1225923  Salix hookeriana Joseph P. Tracy 1942-7-26 17297 Humboldt near the Redwood House S. Yaeger Creek 609 Comment
  UC275500  Salix hookeriana Joseph P. Tracy 1925-2-1 6930 Humboldt lowlands near Salmon Creek Corners (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC469114  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC512014  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1229 Humboldt 1 1/2 mi e Alton; Van Duzen River 30 Comment
  UCD111030  Salix hookeriana Linda M. Barker 1976-3-22 1340 Humboldt 3 miles west of Arcata. Comment
  CDA39527  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  RSA5692  Salix laevigata H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  LA208815  Salix lasiandra Harold E. Parks; 1931-3-24 911 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  UC519383  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-14 12179 Humboldt at Willow Creek bridge Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC125218  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 01150 Humboldt Near bridge at mouth of Maple Creek, Big Lagoon Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107617  Salix lasiolepis Harold E. Parks 1931-9-26 9696 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107625  Salix lasiolepis Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  HSC20023  Salix lasiolepis J. P. Tracy 1933-2-26 10912 Humboldt Miranda, S Fork of Eel River 122 Comment
  POM219356  Salix lasiolepis Joseph P. Tracy 1931-3-31 9327 Humboldt Redwood Creek. At Berry's. 274 Comment
  UC1225925  Salix lasiolepis Joseph P. Tracy 1942-7-26 17296 Humboldt near Redwood House; South Yager Creek 609 Comment
  UC469436  Salix lasiolepis Joseph P. Tracy 1931-10-12 9730 Humboldt lower foothills of n.w. slope Buck Mt.; North Coast Ranges, Buck Mt. 762 Comment
  UC492345  Salix lasiolepis Harold E. and Susan T. Parks 1932-4-12 1112 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 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
  UC504028  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC20004  Salix lasiolepis J. P. Tracy 1932-6-19 10243 Humboldt North Coast Ranges; Buck Mountain, lower foothills of its northwest slope 762 Comment
  JEPS12935  Salix melanopsis Joseph P. Tracy 1931-5-3 9348 Humboldt Mad River near Blue Lake; Northern Coast Region 15 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  UC469449  Salix melanopsis Joseph P. Tracy 1931-5-3 9348 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469450  Salix melanopsis Joseph P. Tracy 1931-6-14 9580 Humboldt Van Duzen R., Alton Alton; Northern Coast Region, Van Duzen R., Alton 30 Comment
  UC481275  Salix melanopsis Harold E. Parks 1931-5-28 1027 Humboldt Little River Lagoon Comment
  UC481825  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490557  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC519362  Salix melanopsis Joseph P. Tracy 1933-6-7 12515 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC519376  Salix melanopsis Joseph P. Tracy 1933-6-11 12552 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  SD977  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River, between Alton and Carlotta, in river gravel. 14 Comment
  CAS-BOT-BC129128  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
  CAS-BOT-BC129134  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1219 Humboldt 1 mile north of Samoa, approximately sea level. Comment
  CAS-BOT-BC129162  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129174  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula near R.R. Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC20083  Salix scouleriana W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  JEPS13086  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt vicinity of Carlotta 30 Comment
  UC1196699  Salix scouleriana Joseph P. Tracy 1919-9-14 5204 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490527  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt head of Devil's Hole; Klamath Mts., Trinity Summit 1828 Comment
  UC519353  Salix scouleriana Joseph P. Tracy 1933-8-30 13056 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  POM182025  Salix sessilifolia Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River. Alton to Fortuna. 15 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
  HSC99439  Salix sitchensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 89 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1196713  Salix sitchensis Joseph P. Tracy 1940-2-25 16521 Humboldt vicinity of Carlotta Carlotta 30 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
  CDA39587  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt North Spit Swamp, west side of highway. Comment
  RSA21578  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  CAS-BOT-BC235120  Sambucus racemosa var. racemosa Doris K. Kildale 1926-3-26 1632 Humboldt Kneeland Road - old road 609 Comment
  CAS-BOT-BC235127  Sambucus racemosa var. racemosa John Thomas Howell 1931-6-17 6725 Humboldt 2 1/2 miles n. of Orick Comment
  SDSU2909  Sambucus racemosa var. racemosa D. F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on #101. Comment
  UC1225816  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt e Box Camp; Trinity Summit 1676 Comment
  UC1199042  Sanguisorba annua Joseph P. Tracy 1936-6-17 14974 Humboldt at crossing road from Bridgeville to Trinity Co. Little Van Duzen River 713 Comment
  UC1073331  Sanicula arctopoides George B. Rossbach 1955-6-10 375 Humboldt between Fairhaven and (end of sandy point) off Eureka (near Humboldt Bay (lagoon) and lighthouse) Comment
  HSC23089  Sanicula bipinnatifida D. E. Anderson 1965-5-1 3564 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC56313  Sanicula graveolens Overton, Butler 1979-8-2 12649 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC642320  Sanicula laciniata Joseph P. Tracy 1927-5-8 7961 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  HSC81660  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-7-13 6064 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC70234  Sanicula tuberosa M. A. Baker 1980-6-8 1896 Humboldt Near Buck Flat. 1554 Comment
  UC183564  Sanicula tuberosa Joseph P. Tracy 1912-7-31 3943 Humboldt Northern Coast Ranges, Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 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
  UC416708  Satureja douglasii P. E. Goddard 1906-6 684 Humboldt Blocksburg Comment
  UC1239685  Satureja douglasii Joseph P. Tracy 1911-7-5 3332 Humboldt in woods along Willow Creek (tributary of Trinity River) (near its mouth); Northern Coast Ranges 152 Comment
  UC1222363  Saxifraga ferruginea Joseph P. Tracy 1950-8-8 19295 Humboldt head of Croghan Hole (on Trinity Summit, [Granite Rock area]); Trinity Summit, Croghan Hole 1676 Comment
  HSC100652  Saxifraga mertensiana Carl C. Marshall May 1886 189 Humboldt Damp rocks. Comment
  UC183569  Saxifraga nidifica var. nidifica Joseph P. Tracy 1913-6-17 4178 Humboldt near summit of Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC7437  Schoenoplectus acutus var. occidentalis D. E. Anderson 1961-9-9 1784 Humboldt Along Hwy. 101 Comment
  HSC79388  Schoenoplectus americanus Kenneth Clark 1980-5-10 651 Humboldt Shelter Cove, western beach of Point Delgada at 10 ft. above high tide Comment
  HSC7488  Schoenoplectus californicus P. W. Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC58816  Scirpus congdonii G. L. Clifton, Griswold 1979-8-1 12072 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC249744  Scirpus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville Northern Coast Ranges, Centerville (in tule swapm near the ocean beach) 3 Comment
  HSC7293  Scirpus microcarpus J. W. Johnson 1962-4-21 1282 Humboldt Arcata, at Miller Farm, Samoa Peninsula Comment
  POM109662  Scoliopus bigelovii Marcus E. Jones 1924-4-28 s.n. Humboldt Scotia. Comment
  SEINET4673868  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood.; 0 76 Comment
  SEINET3991325  Scoliopus bigelovii Unknown 1956-3-17 104 Humboldt South boundary of Jensen grove, off US Highway 101 Comment
  CHSC109847  Scrophularia californica B. Castro; L. P. Janeway 2004-9-11 1476 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. 4 Comment
  UC1125709  Scrophularia californica H. L. Person 1932-7-16 Humboldt Hwy n of Trinidad; Rock Point Quadrangle Comment
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Aug 3 2007
  HSC21137  Scrophularia californica T. M. Mingo May 1965 Humboldt 1 mi. N of intersection of Fairhaven Dr. and old Hwy. 101 Comment
  UC1011942  Scrophularia californica Francis W. Pennell 1949-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel river, Rte 101) 30 Comment
  UCR122374  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7011 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC43851  Scutellaria antirrhinoides Maralyn O'Meara 1974-7-17 553 Humboldt Kneeland Comment
  UC1222866  Scutellaria antirrhinoides Joseph P. Tracy 1950-7-31 19231 Humboldt near Clear Lake (area back of White Rock, Friday Ridge); Grouse Mountain, Friday Ridge 1524 Comment
  RSA34313  Scutellaria californica L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  HSC79258  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Sims Mtn. next to FS 4N01, 1 1/4 mi. S of Sugarloaf Mtn. 1280 Comment
  HSC40703  Sedum laxum subsp. heckneri Thomas W. Nelson, Jane P. Nelson 1976-7-1 2898 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC967446  Sedum radiatum Reid Moran 1951-6-13 3485 Humboldt w slope Buck Mountain; w slope Buck Mountain 853 Comment
  UC524120  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt mouth of Little River mouth Little River Comment
  RSA0081474  Sedum spathulifolium C. B. Wolf 1939-7-8 3414 Humboldt North bank of Matolle River, 2 miles above Petrolia. 61 Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  HSC89451  Selaginella oregana P. A. Daly 1986-3-12 85 Humboldt Trinidad Head 61 Comment
  SBBG19224  Selaginella oregana L. L. Kiefer 1963-8-6 769 Humboldt Patrick's Pt St Park, N side of Lookout Rock 45 Comment
  CAS-BOT-BC69736  Selaginella wallacei Peter H. Raven 1952-5-31 4126 Humboldt Hills sw. of Rector Canyon. 152 Comment
  UCR123957  Senecio bolanderi George K. Helmkamp, E. A. Helmkamp 2001-7-8 6974 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CDA19897  Senecio cineraria P. Haggard 2002-7-1 PDR P 070939 Humboldt Northern California; on Hwy 36 near Carlotta. 0 Comment
  UC581707  Senecio integerrimus var. major Joseph P. Tracy 1932-7-12 10430 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCD135598  Senecio minimus P. B. Kennedy 1925-8-29 s.n. Humboldt northeast Eureka. Comment
  SD33  Sequoia sempervirens Charlotte M. Wilder 1929-1 Humboldt Carlotta Comment
  SEINET3141794  Sequoia sempervirens A. L. Reina G., T. R. Van Devender 2001-12-25 2001 -1044 Humboldt 3.2 km S of Red Creston Alt. CA 101, Humboldt Redwoods State Park Comment
  UC64433  Sequoia sempervirens H. M. Hall 1899-10-1 Humboldt Eel River Comment
  SEINET5334844  Sequoia sempervirens W. D. Billings 1940-6-28 1356 Humboldt 1/4 mile north of Trinidad Comment
  HSC26836  Sherardia arvensis Thomas W. Nelson 1970-12-5 320 Humboldt Near Azalea Park Reserve, McKinelyville Comment
  UC170179  Sidalcea asprella Harley P. Chandler June, 1901 1438 Humboldt Klamath River North Coast Ranges, Klamath River Comment
  CAS-BOT-BC205573  Sidalcea malachroides Alice Eastwood; John Thomas Howell 1937-6-23 4856 Humboldt 8 miles from Korbel on road to Maple Creek Comment
  HSC96274  Sidalcea malachroides Gordon Leppig 2002-5-22 1710 Humboldt Van Duzen River Watershed, Redwood House Rd. Simpson Timber Co. 540 Comment
  UC35225  Sidalcea malachroides Chestnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  UC906705  Sidalcea malviflora subsp. asprella Harold E. Parks and Joseph P. Tracy 1942-7-1 11577 Humboldt Dinmore's 762 Comment
  HSC57355  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-26 10047 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC93949  Sidalcea malviflora subsp. patula D. K. Imper, Clare Golec 1999-6-2 Humboldt Junction of Riverside Rd. and Hwy. 36 91 Comment
  HSC96287  Sidalcea malviflora subsp. patula Gordon Leppig 2004-5-7 2146 Humboldt Hwy. 36, 1 km E of Alton, N side of road 35 Comment
  UC1222505  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18734 Humboldt 7 mi s Ferndale (Bear River Ridge); , s of Ferndale 609 Comment
  CAS-BOT-BC5794  Sidalcea oregana subsp. eximia Joseph Prince Tracy 1907-6-25 2578 Humboldt In valley of Elk River, region about Humboldt Bay 152 Comment
  UC1197970  Sidalcea oregana subsp. spicata Joseph P. Tracy 1935-7-27 14275 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  SD42480  Silene californica Carl B. Wolf 1937-6-18 8890 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  SEINET11933919  Silene californica F. H. Utech 1986-1 86 -414 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  CAS-BOT-BC384424  Silene coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek 365 Comment
  HSC69692  Silene gallica R. Kalal 1980-6-8 13 Humboldt Pump Station #1, along the Mad River 14 Comment
  HSC100417  Silene gallica Carl C. Marshall May 1885 73 Humboldt Dry soils, roadsides, etc. Comment
  HSC68115  Silene gallica J. P. Smith 1973-5-26 6869 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC181246  Silene hookeri subsp. bolanderi Alice Eastwood; John Thomas Howell 1937-6-23 4799 Humboldt Little Van Duzen River Comment
  CAS-BOT-BC389068  Silene laciniata subsp. californica M. S. Jussel 1931-5-2 s.n. Humboldt 26 miles N. of Garberville Comment
  HSC4219  Silene lemmonii J. P. Tracy 1932-7-12 10452 Humboldt Trinity Summit, near Corral Prairie 1585 Comment
  UC668192  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  SEINET3876405  Sisyrinchium bellum Thomas Nelson 1971-5-9 433 Humboldt Beside highway 36 opposite Goat Rock ca. 1 mi. west of Bridgeville.; 0 Comment
  SD88390  Sisyrinchium californicum Darley F. Howe 1972-6-30 Humboldt Trinidad. Comment
  JEPS62110  Smilacina racemosa Milo S. Baker 1923-7-31 150 Humboldt Lawrence Creek Comment
  UC1197805  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  RSA337440  Solanum laciniatum Robert F. Thorne, Percy C. Everett 1965-8-5 35160 Humboldt Samoa Dunes. 3 Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  LA203957  Solidago elongata H. E. Parks; July 1931 - August 1931 1056 Humboldt Trinidad 76 Comment
  UC169036  Solidago elongata Joseph P. Tracy 1912-8-1 3955 Humboldt valley Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC175192  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC175202  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC365665  Solidago spathulata Mary O'Conor 1921-9-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC365672  Solidago spathulata Doris K. Kildale 1926-4-9 1745 Humboldt Samoa Peninsula Comment
  HSC28941  Solidago spathulata Thomas W. Nelson 1971-11-11 598 Humboldt Foot of Murray Rd., McKinleyville. Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  UC1199288  Soliva sessilis Joseph P. Tracy 1939-4-18 16217 Humboldt Garberville 152 Comment
  CAS-BOT-BC374596  Sonchus oleraceus F. J. Kirby 1958-7-1 s.n. Humboldt West of Bridgeville 152 Comment
  UCSB25395  Sparganium emersum Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  CHSC79893  Spartina densiflora Gordon Leppig; Kai Neader 1999-4-30 1130 Humboldt Humboldt Bay, Eureka. 30 m south of Del Norte St. fishing pier. UTM zone 10, 4517N, 399E. 1 Comment
  HSC4264  Spergularia macrotheca D. K. Smith 1968-11-9 54 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CAS-BOT-BC149615  Spiraea douglasii Henry M. Pollard 1947-8-19 s.n. Humboldt Klamath River nr. Redcap Creek, Orleans region Comment
  HSC100156  Spirodela polyrhiza Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  UC1124935  Stachys ajugoides var. rigida H. L. Person 1932-7-16 T.H. 30 Humboldt highway n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  UC1239722  Stachys ajugoides var. rigida Joseph P. Tracy 1942-7-1 17365 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UCLA71114  Stachys ajugoides var. rigida C. Epling Jun 1938 Humboldt above Redwood Creek Comment
  UC604661  Stachys chamissonis Joseph P. Tracy 1938-8-20 16124 Humboldt Alton 18 Comment
  HSC54596  Stachys rigida Overton, Butler 1979-7-24 9672 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA20856  Stachys rigida subsp. quercetorum Carl B. Wolf 1937-6-18 8896 Humboldt 1/2 mile S of Fortuna. 15 Comment
  CAS-BOT-BC175346  Stellaria borealis subsp. sitchana Joseph P. Tracy 1900-5-22 795 Humboldt At Eureka 60 Comment
  UC1223445  Stellaria crispa Joseph P. Tracy 1950-7-15 19042 Humboldt near mouth of Raccoon Creek (Willow Creek vicinity, 1 mi ne of Patterson's Ranch); Willow Creek Comment
  UC161055  Stellaria media Joseph P. Tracy 1907-5-20 2562 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC89600  Stellaria media M. Roantree 1985-4-28 24 Humboldt E side of Trinidad Head, along dirt road Comment
  CAS-BOT-BC87613  Streptanthus tortuosus Joseph P. Tracy; F. W. Pennell 1940-7-7 16667 Humboldt Grouse Mountain. 1463 Comment
  HSC103087  Streptanthus tortuosus Sydney Carothers 2014-6-22 7 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC6946  Streptanthus tortuosus R. Spellenberg 1965-6-14 1130 Humboldt S of airport, 5 mi. E of Kneeland 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
  HSC104430  Streptanthus tortuosus Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  UC492252  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-7-12 10457 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC56070  Suksdorfia ranunculifolia G. L. Clifton, Griswold 1979-7-31 11737 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC269568  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  HSC23753  Symphoricarpos albus var. laevigatus Tim Baroni 1971-7-6 112 Humboldt 2 mi. S of Ferndale on Mattole Rd. Comment
  HSC98899  Symphoricarpos albus var. laevigatus Cara Witte 2007-8-1 611 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of White Oak Opening. 1256 Comment
  RSA134176  Symphoricarpos albus var. laevigatus P. C. Everett, E. K. Balls 1959-10-25 23959 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. Comment
  UC179968  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1914-6-14 4499 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1225823  Symphoricarpos mollis Joseph P. Tracy 1948-8-15 18144 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC96471  Symphyotrichum chilense Gordon Leppig 1997-6-19 455 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC99163  Symphyotrichum chilense Carl B. Wolf 1927-8-22 808 Humboldt Along the hills near teh ocean 1 mile south of Orick. Comment
  SEINET11115992  Symphytum asperum Unknown 1949-1 18358 Humboldt CALIFORNIA PLANTS HUMBOLDT COUNTY Salmon Creek Valley, south end of Humboldt Bay; naturalized native of Asia. Comment
  HSC90065  Synthyris cordata C. Baldwin, A. Hiss, P. Reynolds 1990-3-3 4 Humboldt Grey's Falls Picnic Area off Hwy. 299, 4 mi. W of Burnt Ranch 259 Comment
  HSC89432  Synthyris reniformis P. A. Daly 1984-5-8 11 Humboldt Trinidad Head 61 Comment
  HSC93511  Tanacetum bipinnatum Gordon Leppig 1998-5-25 789 Humboldt Big Lagoon State Park. 2 Comment
  CHSC55891  Tanacetum camphoratum L. P. Janeway 1987-7-31 2543 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC127603  Tanacetum camphoratum J. Burtt Davy 1899-6-30 6183 Humboldt near Ferndale (North Coast Ranges); North Coast Ranges Comment
  UC726018  Tanacetum camphoratum A. A. Heller 1937-6-12 15900 Humboldt just below road leading up to the lighthouse on Trinidad Head Trinidad Comment
  HSC73247  Tauschia kelloggii M. A. Baker 1980-5-18 1311 Humboldt Near Black Mtn. 1006 Comment
  UC642290  Tauschia kelloggii Joseph P. Tracy 1936-6-21 14995 Humboldt Iaqua 609 Comment
  HSC67525  Tauschia kelloggii J. M. DiTomaso 1981-4-12 1999 Humboldt Chezem Rd., 23 mi. E of Hwy. 101off Hwy. 299 Comment
  SD62056  Taxus brevifolia Darley F. Howe 1965-8-10 Humboldt 9.8 miles west of Willowcreek on U. S. #299 885 Comment
  UC667973  Taxus brevifolia Joseph P. Tracy 1936-9-20 15186 Humboldt along Capoe Creek; Humboldt State Redwood Park 91 Comment
  HSC56241  Tellima grandiflora Walter Overton 1979-8-1 12338 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC667096  Tellima grandiflora Joseph P. Tracy 1935-7-23 14163 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC20430  Tellima grandiflora D. E. Anderson 1962-3-31 1964 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  UC1222570  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley Buck Mountain (nw slope of mt., lower end of valley) 1066 Comment
  HSC28198  Thalictrum polycarpum Thomas W. Nelson 1971-5-31 454 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  CAS-BOT-BC81312  Thuja plicata Dr. A. Kellogg; W. G. W. Harford 1868-9 933 Humboldt unspecified Comment
  SBBG34243  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  SBBG56417  Thuja plicata H. E. Parks 1932-7-25 1139 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  SJSU124  Thuja plicata Emily D. Smith 1932-8-29 Humboldt near Korbel, about 10 miles east of Arcata Comment
  UCD134112  Thuja plicata T. I. Storer 1931-7-1 2223 Humboldt Near Ferndale. Comment
  UCD170787  Thuja plicata Gordon Leppig 1998-3-15 718 Humboldt Quarry Rd. off Jacoby Creek. 97 Comment
  CAS-BOT-BC88323  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  RSA0039379  Thysanocarpus curvipes var. curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles NE of Weitchpec near Bluff Creek campground. 140 Comment
  OBI33243  Tiarella trifoliata var. unifoliata David J. Keil 1983-7-1 17257 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  RSA304700  Tiarella trifoliata var. unifoliata S. Ganley 1971-5-30 1156 Humboldt Ave of Giants; Humboldt State Park. 152 Comment
  UC11936  Tiarella trifoliata var. unifoliata J. Burtt Davy 1899-6-19 5650 Humboldt Hoopa Mt. North Coast Ranges, summit Hoopa Mt. (at the summit) Comment
  UC1198897  Tolmiea diplomenziesii Joseph P. Tracy 1924-6-1 6689 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 609 Comment
  HSC60125  Tolmiea diplomenziesii M. A. Baker 1978-5-20 556 Humboldt Hoopa Indian Reservation Comment
  CAS-BOT-BC447612  Tolmiea menziesii Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC75412  Torilis arvensis J. O. Sawyer, M. A. Ericksen 1980-7-7 3574 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  HSC97982  Triantha occidentalis subsp. occidentalis Cara Witte 2007-7-10 473 Humboldt Horse Mountain Botanical Area. Forest service Road 6N18. 1434 Comment
  UC1137622  Trichostema laxum R. Stahelin 1933-8-20 Humboldt Korbel, above Camp 8 Comment
  UC577371  Trichostema laxum Joseph P. Tracy 1926-10-15 7815 Humboldt South Fork of Trinity River, mountain slopes W of mouth 304 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  UC1052444  Trientalis latifolia H. E. and S. T. Parks 1952-6-1 7548 A Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove 60 Comment
  BLMAR277  Trientalis latifolia Jennifer Anthony-Wheeler 1999-7-30 277 Humboldt Headwaters Forest Reserve, growing in shaded places esp woodlands 548 Comment
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  UC1223394  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt on Trinity River (Willow Creek) Comment
  UC160920  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-7-4 2535 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  UC1197493  Trifolium barbigerum Joseph P. Tracy 1904-4-24 2027 Humboldt Ocean Beach Humboldt Bay Comment
  HSC71168  Trifolium bifidum Thomas W. Nelson 1977-5-30 3414 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  POM160892  Trifolium bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  UC33569  Trifolium cyathiferum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC1197495  Trifolium cyathiferum Joseph P. Tracy 1933-7-15 12735 1/2 Humboldt lower foothills of nw slope; Buck Mtn Comment
  UC1223478  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1933-5-20 12242 Humboldt Petrolia Mattole Valley Comment
  POM160884  Trifolium dichotomum Joseph P. Tracy 1925-5-30 7023 Humboldt Mcclellan Mountain. 823 Comment
  UC303191  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC71438  Trifolium dubium J. P. Smith 1973-5-26 6836 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC97569  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC495653  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 C Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223464  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1949-8-4 18415 Humboldt toward Trinity Summit (Mud Springs, on rd from Hoopa) 1341 Comment
  UC594253  Trifolium eriocephalum var. eriocephalum S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3412 Humboldt Burr Valley Buck Mtn 1036 Comment
  HSC100533  Trifolium filipes Carl C. Marshall May 1886 411 Humboldt Dobbyn's Creek. Comment
  HSC15118  Trifolium fucatum R. Spellenberg 1964-6-15 414 Humboldt 5 mi. E of Redwood Creek on Hwy. 299 Comment
  UC1197032  Trifolium fucatum Joseph P. Tracy 1929-8-4 8649 Humboldt near Petrolia (Mattole River); North Coast Ranges 15 Comment
  UC199105  Trifolium longipes var. elmeri Chesnut and Drew July 1888 Humboldt S. Fork of Trinity Comment
  UC495662  Trifolium macraei Joseph P. Tracy 1932-5-10 9935 Humboldt Bear River edge Northern Coast Ranges 609 Comment
  HSC45139  Trifolium microcephalum R. Sutherland 1978-5-19 8 .19578 Humboldt 131 Comment
  UCD111448  Trifolium microcephalum Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  CHSC10113  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata. On stabilized sand of ridge 3, Christenson Farm, Samoa Peninsula. Comment
  UC1197505  Trifolium microdon Joseph P. Tracy 1932-5-16 10109 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  HSC38634  Trifolium obtusiflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1257 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC1197503  Trifolium obtusiflorum Joseph P. Tracy 1903-5-24 1916 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC1223338  Trifolium obtusiflorum Joseph P. Tracy 1933-6-24 12614 Humboldt hills at n end Big Lagoon Comment
  UC1541578  Trifolium oliganthum Parks and Tracy 1930-5-25 957 Humboldt Laribee Valley 762 Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  SEINET4178474 Image available Trifolium oreganum Unknown 1950-7-1 18945 Humboldt Near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. 1219 Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  UC1223542  Trifolium variegatum Joseph P. Tracy 1933-7-9 12649 Humboldt Brannan Mtn 1066 Comment
  UC495676  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1103453  Trifolium variegatum var. variegatum J. P. Tracy 1901-5-21 1103 Humboldt Eureka vicinity 0 Comment
  UC165551  Trifolium willdenovii Mrs. M. H. Manning 1901-4 70 Humboldt near Hupa Comment
  UC16761  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 d Humboldt Harris Comment
  BLMAR742  Trifolium willdenovii Jennifer Wheeler 2015-5-18 742 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  HSC45128  Trifolium willdenovii R. Sutherland 1978-4-23 30 .23478 Humboldt Kinsey Ridge 640 Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC2149  Trifolium wormskioldii J. P. Tracy 1926-7-25 7750 Humboldt Big Lagoon Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC198572  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UCD138179  Triglochin maritima Malcolm A. Nobs; S. Galen Smith 1949-8-3 1169 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  UCR121761  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC93841  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt Hwy. 101, mi. marker 61.40, E side of Hwy. 2 Comment
  HSC101818  Trillium kurabayashii Kjirsten A. Wayman 2012-5-15 320 Humboldt Big Hill Road, 10.5 miles east of Hoopa, N 41.08892 W 123.56708 1368 Comment
  HSC96775  Trillium kurabayashii M. Mesler 2006-6-6 609 Humboldt 1.2 mi. SE of intersection of USFS Rd. 8N01 and Box Camp loop 1524 Comment
  CHSC62019  Trillium ovatum J. R. Biddison 1993-4-7 13 Humboldt Phillipsville, Avenue of the Giants, w side of road, 1 mi s of hwy 101 junction. 45 Comment
  HSC41250  Trillium ovatum Brad Klipfel 1974-5-27 397 Humboldt Horse Mtn. Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  HSC15703  Trillium ovatum W. F. Nickel 1965-4-3 Humboldt 5 mi. SE of Fern Canyon in Prairie Creek Redwoods State Park, on rd. to Fern Canyon Comment
  SD56735  Trillium ovatum Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  UC602558  Triodanis perfoliata Joseph P. Tracy 1932-6-14 10154 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  UC1198037  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1901-4-14 1020 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  CDA41899  Triphysaria pusilla E. C. Whitney 1966-4-25 s.n. Humboldt E. Baird property, Hydesville. 0 Comment
  UC27277  Triphysaria pusilla C. E. Spear April, 1898 Humboldt Waddington Comment
  HSC40953  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-30 1424 Humboldt 3 mi. W of Arcata Comment
  UC1103148  Trisetum canescens Joseph P. Tracy 1917-5-30 4789 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  UCD93892  Trisetum canescens Joseph P. Tracy 1901-5-30 1109 Humboldt At Eureka. 0 Comment
  HSC13417  Trisetum cernuum D. J. Wilder 1965-5-15 35 Humboldt 2 mi. E of Freshwater on Road to Kneeland Comment
  UC902040  Triteleia bridgesii Joseph P. Tracy 1949-6 18345 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC421775  Triteleia hyacinthina P. E. Goddard 1907-5-29 C. 108 Humboldt Van Duzen Comment
  SD649  Triteleia laxa Mary S. Snyder 1894-5-14 Humboldt Eel River. 320 Comment
  UC1222687  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt windswept flat s Cape Mendocino; Davis Creek Mouth Comment
  CHSC79895  Triticum aestivum Gordon Leppig; Sylvia Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, UTM zone 10, 4525N, 409E. 3 Comment
  SBBG83394  Tsuga heterophylla R. Gankin 1965-8-7 563 Humboldt just N of parking area; Big Lagoon County Park Comment
  UCD67633  Tsuga heterophylla D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  HSC49395  Umbellularia californica R. York 1979-4-16 235 Humboldt Corner of 12th and D in Arcata Comment
  HSC95838  Umbellularia californica Kevin Thomas 2004-4-26 13 Humboldt Lord Ellis Summit along Titlow Hill Rd., rd. turnout Comment
  UC1197772  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  UCD166886  Vaccinium ovatum Colleen Rossier 2016-9-16 4 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #2. 633 Comment
  UCR178913  Vaccinium ovatum R. G. Swinney 1968-4-13 242 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  CAS-BOT-BC199419  Vaccinium parvifolium C. B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  CAS-BOT-BC76049  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1196351  Vancouveria hexandra J. P. Tracy 1904-7-31 2136 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  HSC63004  Vancouveria hexandra David Wheeler 1979-5-17 116 Humboldt Stagecoach Rd., 1 mi. from Post Office in Trinidad 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
  HSC72636  Vancouveria planipetala J. P. Smith 1977-7-3 9247 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  HSC65843  Veratrum insolitum Gail Newton 1980-6-16 184 Humboldt Near Onion Mtn. 1280 Comment
  UC1225852  Veratrum insolitum Joseph P. Tracy 1948-8-15 18120 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  JEPS39084  Verbena lasiostachys var. lasiostachys Lincoln Constance 1934-5-26 660 Humboldt s end Dyerville Bridge; S Fork Eel River 45 Comment
  HSC55335  Veronica americana Terry Griswold, Marvin Butler 1979-7-12 7179 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  UC1222772  Veronica americana Joseph P. Tracy 1950-6-8 18727 Humboldt 7 mi s of Ferndale (summit of Bear River Ridge, near Mount Glen Ranch); Bear River Ridge 609 Comment
  UC147898  Veronica peregrina subsp. xalapensis J. P. Tracy 1909-5-23 2976 Humboldt immediate vicinity of Eureka 0 Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC37846  Veronica persica Thomas W. Nelson, James Nelson 1976-3-11 2265 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  HSC21220  Veronica serpyllifolia William J. Ferlatte 1963-5-8 38 Humboldt N end of Redwood Bowl, HSC campus, Arcata Comment
  HSC37952  Vicia americana var. americana Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  HSC98838  Vicia americana var. americana Cara Witte 2008-7-16 914 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1197464  Vicia americana var. americana Joseph P. Tracy 1913-7-20 4372 Humboldt slopes between Three Creeks and top of Berry Mountain; Northern Coast Ranges 1066 Comment
  POM278062  Vicia angustifolia Lyman D. Benson 1928-7-12 461 Humboldt Weott Ranger Station 61 Comment
  RSA20848  Vicia angustifolia Carl B. Wolf 1937-6-18 8888 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UC198656  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek Northern Coast Ranges, Eel River (along Eel River from South Fork to Scotia) 60 Comment
  UCSC000430  Vicia sativa H. S. Yates 1936-6-23 5870 Humboldt 13 miles S.E. of Scotia Comment
  POM92410  Vicia sativa L. R. Abrams 1922-6-25 8238 Humboldt 2 miles south of Fortuna Comment
  SEINET5078517  Vicia sativa Unknown 2002-8-22 89 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UCD108987  Vicia sativa subsp. nigra W. A. Williams 1951-6-1 s.n. Humboldt location unknown. Comment
  UC604647  Vinca major Joseph P. Tracy 1938-4-5 15703 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC263946  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills 853 Comment
  UC1761637  Viola adunca Mrs. H. C. Cantelow 1936-5-17 Humboldt 5 1/2 mi E of Orick (on road to Yreka) Comment
  HSC90169  Viola cuneata Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 57 Humboldt Horse Mtn. Summit; Rd. 6N36, 1 mi. N of Titlow Hill Rd. 1494 Comment
  UC1761598  Viola glabella W. K. Parks Jul 1933 6238 Humboldt South Fork Mt. Comment
  HSC39000  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-5-31 2654 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC97502  Viola hallii C. Witte 2007-5-8 3 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC32842  Viola ocellata Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  UC164811  Viola ocellata Joseph P. Tracy 1908-6-27 2685 Humboldt near head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  HSC84493  Viola praemorsa subsp. praemorsa R. Earing, C. Cavanaugh, C. Collins 1987-4-24 95 Humboldt 24 mi. E of Blue Lake on Titlow Hill Rd., ca. 1/2 mi. from Hwy. 299 854 Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  HSC67183  Viola purpurea subsp. integrifolia Thomas W. Nelson, Jane P. Nelson 1980-6-10 5434 Humboldt Along E side of Red Mtn. 1372 Comment
  RSA244947  Viola sempervirens Norman Dennis 1965-5-8 55 Humboldt 0.1 mile west of Lord Ellis Summit on Hwy 299. Comment
  RSA46480  Viola sempervirens Doris K. Kildale 1927-3-19 2901 Humboldt Luffenholtz Creek. Comment
  HSC70239  Viola sheltonii M. A. Baker 1980-6-8 1903 Humboldt Near Buck Flat. 1554 Comment
  RSA80504  Viola sheltonii Milo S. Baker 1946-6-16 11510 Humboldt South Fork Mt. 1677 Comment
  RSA54148  Vitis vinifera H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  HSC9836  Vulpia bromoides J. A. Waller 1965-5-16 47 Humboldt Open field near Big Lagoon. Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  UC196967  Vulpia myuros var. hirsuta Joseph P. Tracy 1915-5-23 4640 Humboldt Eureka; Northern Coast Region 0 Comment
  UC53369  Vulpia myuros var. hirsuta M. A. H. 1896-6-2 Humboldt Eureka Comment
  UCD94898  Vulpia myuros var. hirsuta A. Murphy 1951-4-2 s.n. Humboldt along Highway 101, 0.75 mile south of Phillipsville. Comment
  BLMAR153  Whipplea modesta Donald Hazlett 1994-6-7 153 Humboldt King range, E-facing slope off hourse mountain ridge Comment
  HSC20448  Whipplea modesta J. Sandborg, F. Sandborg May 1968 10 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC23142  Whipplea modesta Norman Dennis 1965-6-19 127 Humboldt 0.25 mi. S and 1.0 mi. E of jct. of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 2 mi. SE of Kneeland 793 Comment
  HSC41290  Whipplea modesta Brad Klipfel 1974-7-27 488 Humboldt Horse Mtn. Comment
  JEPS43494  Whipplea modesta Lincoln Constance 1934-5-31 761 Humboldt along Bull Cr. from w boundary of Park to Grasshopper Pk. (Squaw Crk.) rd. (n side of cr.); South Fork Eel River, Bull Creek Region, Bull Cr. flat Comment
  UC1541295  Whipplea modesta H. E. and S. T. Parks May, 1930 753 Humboldt along roads adjacent to Van Duzen River Comment
  HSC79482  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt N fork of Dead Man's Gulch 84 Comment
  JEPS32067  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13938 Humboldt French Camp Ridge 1066 Comment
  UC1199260  Wyethia angustifolia Joseph P. Tracy 1936-6-10 14928 Humboldt w of mouth South Fork Trinity River 457 Comment
  UC302182  Wyethia longicaulis Joseph P. Tracy 1926-6-20 7658 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  UC535716  Xanthium strumarium Eleanor Armstrong 1934-8-2 1135 Humboldt Richardson Grove 121 Comment
  RSA246843  Xerophyllum tenax Robert F. Thorne, Percy C. Everett 1965-8-5 35144 Humboldt King Mountain 1220 Comment
  CAS-BOT-BC527083  Xerophyllum tenax L. R. Abrams No date on lable. 7096 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  HSC104431  Zigadenus fremontii Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  HSC15777  Zigadenus fremontii J. Wendell Howe 1930-3-30 78 Humboldt Diamond Canyon, presumed Humboldt Co. but not stated Comment
  JEPS62265  Zigadenus micranthus var. micranthus W. L. Jepson 1902-6-20 1907 Humboldt Hibbard's Station to Eel River Comment
  HSC26270  Zigadenus venenosus var. venenosus Thomas W. Nelson 1971-5-31 450 Humboldt 915 Comment
  HSC21902  Zostera marina S. Estes 1964-4-4 17 Humboldt N Humboldt Bay Comment
  HSC93950  Zostera marina F. J. Shaughnessy 1999-6-14 Humboldt Arcata Marsh and Wildlife Sanctuary, Humboldt Bay, Fields Landing Comment



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