Search Results — 2000 specimen records retrieved (1397 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  HSC40002  Abies grandis Linda M. Barker 1976-9-3 1688 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  POM89804  Abies grandis Joseph P. Tracy 1919-4-6 5725 Humboldt Around Humboldt Bay, Humboldt Hill. 152 Comment
  CAS-BOT-BC73465  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest - extension of known range, Horse Trail Ridge, southwest slope. 1828 Comment
  SBBG69879  Abronia latifolia R. Hartwell 1938-8-4 Humboldt near Capetown Comment
  SD42285  Abronia latifolia Carl B. Wolf 1937-9-9 3064 Humboldt Coast, 2 miles south of Cape Mendocino 6 Comment
  RSA0025089  Abronia latifolia Lyman Benson 1929-7-19 1849 Humboldt Mouth of Matole [Mattole] River. Comment
  UC55523  Abronia latifolia P. E. Goddard 1901-8-6 180 Humboldt Regna Beach Comment
  UC1360498  Acaena novae-zelandiae D. W. Cooper 1967-6-30 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  CDA40634  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook. 0 Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  CAS-BOT-BC330548  Acer circinatum H. E. McMinn 1922-8-5 355 Humboldt Near Van Duzen River Comment
  HSC37409  Acer circinatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 504 Humboldt Along Lost Man Creek. 38 Comment
  SEINET3026058 Image available Acer circinatum Joseph P. Tracy 1942-7-26 17294 .5 Humboldt Valley of SOuth Yager Creek 610 Comment
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May 1 2015
  UC205487  Acer circinatum Joseph P. Tracy 1920-10-24 5403 Humboldt Mad River bottom near Blue Lake (Northern Coast Ranges); , Mad River bottom nr Blue Lake 60 Comment
  HSC58344  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12671 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99409  Acer glabrum var. torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 58 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC79478  Acer macrophyllum Kenneth Clark 1980-3-27 563 Humboldt Upper alluvial terrace of Dead Man's Gulch 76 Comment
  HSC37962  Achillea millefolium Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  HSC49782  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC73777  Achillea millefolium M. A. Baker 1980-6-7 1770 Humboldt Near Brush Mtn. 1128 Comment
  UC1125414  Achillea millefolium H. L. Person 1932-7-16 9 Humboldt highway n Trinidad; Rock Point Quad. Comment
  UC1199375  Achillea millefolium J. P. Tracy 1901-7-28 1220 Humboldt immediate vicinity Eureka 0 Comment
  HSC100420  Achillea millefolium Carl C. Marshall Jul 1887 437 Humboldt Everywhere. Comment
  HSC102055  Achlys californica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 960 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  SEINET5585536 Image available Achnatherum lemmonii Joseph P. Tracy 1926-1 7649 Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC216454  Achnatherum occidentale subsp. californicum H. E. Parks; Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  HSC98304  Acmispon micranthus R. J. Vernimen 1963-4-27 37 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC40938  Acmispon micranthus Linda M. Barker 1976-6-1 1557 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC45644  Acmispon micranthus Diane L. Reed 1978-5-7 53 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  JEPS5767  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp Comment
  HSC54752  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-26 10270 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  HSC56217  Actaea rubra G. L. Clifton, Griswold 1979-8-2 12233 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA67622  Adiantum aleuticum P. A. Munz 1951-7-15 16547 Humboldt Racoon Creek. 305 Comment
  UC197917  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville; Northern Coast Region 30 Comment
  UCSB8229  Adiantum aleuticum Robbins, G. 1936-8-1 Humboldt Cliff above Van Duzen River, near Carlotta Comment
  CAS-BOT-BC65628  Adiantum jordanii Doris K. Kildale 1928-12-30 6767 Humboldt Phillipsville Comment
  UC249662  Adiantum jordanii Joseph P. Tracy 1922-4-30 6025 Humboldt near Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC202609  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt Bear River, ten miles up stream from the mouth 152 Comment
  CAS-BOT-BC202610  Aesculus californica L. R. Abrams 1916-7-10 5965 Humboldt Between Harris and Alder Pt. Comment
  UC479099  Aesculus californica Marcus E. Jones, A. M. 1931-7-12 28938 Humboldt Alton Comment
  HSC5642  Ageratina occidentalis J. P. Tracy 1922-7-15 6101 Humboldt Along Mad River, near Blue Lake Comment
  CAS-BOT-BC30381  Ageratina occidentalis Doris K. Kildale 1925-7-19 1051 Humboldt Bridgeville, on Van Duzen River 228 Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  UC194430  Ageratina occidentalis P. E. Goddard 1907-7-14 b 128 Humboldt along Van Duzen <River> Van Duzen <River> Comment
  UC205167  Ageratina occidentalis Joseph P. Tracy 1900-8-15 5358 Humboldt mouth of Bluff Creek; Klamath River, Bluff Creek 152 Comment
  HSC44088  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-9-3 3723 Humboldt N of Alder Springs 1555 Comment
  UCD128596  Agoseris grandiflora Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mile west of Mud Springs (to Box Camp on west slope of Trinity Summit). Comment
  UC1199117  Agoseris grandiflora var. grandiflora J. P. Tracy 1901-7-7 1215 Humboldt immediate vicinity of, on Eureka Streets Eureka 0 Comment
  UC1222937  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19024 Humboldt 3 mi s, sw slopes of Buck Mt Burr Valley; Buck Mountain 1066 Comment
  CAS-BOT-BC15343  Agoseris heterophylla Alice Eastwood; John Thomas Howell 1937-6-23 4810 Humboldt Little Van Duzen River Comment
  UC582747  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 B Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC165755  Agoseris heterophylla var. heterophylla J. P. Tracy 1906-5-13 2455 Humboldt sand hills at Samoa; Ocean Beach Comment
  HSC40016  Agoseris retrorsa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2919 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC449621  Agoseris retrorsa Joseph P. Tracy 1912-7-31 3947 Humboldt near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  UC1152034  Agrostis capillaris Joseph P. Tracy 1951-6-26 19547 Humboldt Snow Camp Meadow Comment
  UCD51851  Agrostis capillaris W. A. Logan 1922-8-19 s.n. Humboldt From Geo. Garner of Arcata. Comment
  RSA152379  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad 6 Comment
  UC1145067  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt clay bluff close to ocean shore Trinidad 3 Comment
  CAS-BOT-BC127290  Agrostis exarata C. L. Hitchcock; C. V. Muhlick 1963-7-14 22909 Humboldt Along Eel River at Fern bridge. Comment
  CAS-BOT-BC127292  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 1/2 Humboldt Fort Seward. 106 Comment
  UC249864  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC526895  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt along river near Blue Lake; Mad River 15 Comment
  UCD52494  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCR27986  Agrostis exarata A. C. Sanders 1981-8-6 2302 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  CAS-BOT-BC139694  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills of Chaparral Mountain. 457 Comment
  SEINET10810391  Agrostis longiligula Joseph P. Tracy 1902-7-4 Tracy 1757 Humboldt 0 Comment
  CAS-BOT-BC139126  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  UC526883  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC552730  Agrostis pallens Joseph P. Tracy 1935-7-28 14335 Humboldt head Brett Hole (rocky exposed places); Trinity Summit 1828 Comment
  UCD53145  Agrostis pallens R. Tofsrud 1948-1 s.n. Humboldt Clear Lake, road from Horse Mt. to Grouse Mt. 1371 Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  CAS-BOT-BC138336  Aira caryophyllea var. caryophyllea Ira L. Wiggins 1932-6-18 5874 Humboldt Hillside at mouth of Little River. Comment
  RSA205970  Aira praecox Joseph P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC142773  Allium bolanderi Harley P. Chandler June, 1901 1434 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  CAS-BOT-BC462971  Allium bolanderi Carl Purdy 1933-6-1 s.n. Humboldt Redwood Creek Comment
  JEPS56360  Allium bolanderi W. L. Jepson 1902-7-13 2024 Humboldt South Fork, junction Trinity River Comment
  UC666928  Allium bolanderi Joseph P. Tracy 1932-6-14 10139 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 609 Comment
  HSC65901  Allium bolanderi var. bolanderi M. A. Baker 1980-6-26 2444 Humboldt Near Sims Creek 610 Comment
  HSC78654  Allium campanulatum D. K. Imper 1982-7-2 1490 Humboldt Near Connely Creek, N Fork 1493 Comment
  HSC67188  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5424 Humboldt Along NE side of Red Mtn. 1433 Comment
  UCR39798  Allium falcifolium D. K. Imper 1982-7-1 s.n. Humboldt Six Rivers National Forest. Lassics Lookout & road to Pine Mtn. 1524 Comment
  CAS-BOT-BC469019  Allium falcifolium Doris K. Kildale 1926-6-9 2150 Humboldt Horse Mountain 1219 Comment
  HSC2937  Allium falcifolium D. E. Anderson 1965-6-1 3772 Humboldt Along Friday Ridge Rd. 2 mi. NE of its junction with Titlow Hill Rd. 1159 Comment
  HSC67211  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-7-10 5440 Humboldt Along branch rd. off Swayback Ridge Rd., 0.5 mi. E of junction 1372 Comment
  SEINET10532720  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-10 Nelson 5417 Humboldt Blocksburg quad. T1s, r5e, intersection of secs. 13 & 14. Along road to red mt. .5 Miles w of junction with swayback ridge rd. Serpentine bald 1372 Comment
  UC666906  Allium membranaceum Joseph P. Tracy 1929-6-3 8599 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CDA18808  Allium triquetrum P. Haggard 2000-2-22 PDR 018177 Humboldt Glen St., Eureka. 0 Comment
  HSC47291  Allium unifolium Dale McNeal 1978-6-3 2160 Humboldt 4.3 mi. S of Bridgeville on rd. to Blocksburg Comment
  RSA75603  Allium unifolium Albert M. Vollmer, L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road. Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  CAS-BOT-BC169537  Alnus rubra Doris K. Kildale 1928-2-17 4273 Humboldt Patricks Point Comment
  CDA30678  Alnus rubra M. K. Beyers, I. Shepardson 2009-9-13 242 Humboldt On the western side of the Eel River, on dry, higher ground, adjacent to the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC69582  Alnus rubra R. Kalal 1979-5-18 66 Humboldt Union St. between 11th and 12th St. 34 Comment
  HSC101973  Alnus viridis subsp. sinuata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 870 Humboldt Patterson Meadows 1566 Comment
  HSC73642  Alnus viridis subsp. sinuata M. A. Baker 1980-7-23 3193 Humboldt Near Orleans Mtn. 1859 Comment
  HSC99040  Alnus viridis subsp. sinuata Cara Witte 2008-7-3 831 Humboldt Friday Ridge Road/ 6N08. 1.5 mile north of intersection with 5N39. 1474 Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  CHSC10149  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt W. M. Lanphere Farm, Samoa Peninsula. Comment
  HSC28482  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad River Beach Co. Park Comment
  UC665538  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt sandy beaches at mouth Little River Comment
  HSC35866  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2128 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC41333  Amelanchier pallida Brad Klipfel 1974-9-17 570 Humboldt Horse Mtn. Comment
  HSC12709  Anagallis arvensis Jana Kattenhorn 1970-10-28 147 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC32503  Anagallis arvensis David Johnson 1974-5-2 73 Humboldt Mad River Co. Park, mouth of the Mad River; by the parking lot Comment
  CAS-BOT-BC45131  Anaphalis margaritacea Alice Eastwood 1923-8-14 12304 Humboldt Samoa Comment
  JEPS20544  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  HSC34275  Anemone deltoidea K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC55331  Anemone deltoidea Griswold, Butler 1979-7-12 7175 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC56130  Anemone deltoidea G. L. Clifton, Griswold 1979-8-1 11942 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC82404  Anemone deltoidea Thomas W. Nelson 1979-7-11 5034 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  UC1196194  Anemone deltoidea Joseph P. Tracy 1933-7-11 12711 Humboldt Grouse Mtn; North Coast Ranges; Grouse Mtn 1524 Comment
  HSC97491  Anemone oregana C. Witte 2007-5-17 25 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  HSC22553  Anethum graveolens Paul Shields Sep 1955 Humboldt 1 mi. S of Weott Comment
  HSC55623  Angelica arguta Overton, Butler 1979-7-24 9570 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  JEPS14171  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  CAS-BOT-BC221421  Angelica hendersonii Carl B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, south of Cape Mendocino Comment
  HSC71416  Angelica hendersonii J. M. DiTomaso 1980-8-1 1820 Humboldt Alton, S of Eureka, above NE junction of railroad and Hwy 36, E of Hwy 101 Comment
  HSC56203  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-2 12194 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70546  Angelica tomentosa M. A. Baker 1980-7-19 3025 Humboldt Near Bret Hole. 1814 Comment
  SEINET13943409 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  SEINET13943410 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  UCD127180  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  HSC81929  Anisocarpus madioides Thomas W. Nelson, Jane P. Nelson 1979-7-3 4950 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC102080  Antennaria media M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 982 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1222875  Antennaria suffrutescens Joseph P. Tracy 1946-5-4 17528 Humboldt along Trinity Highway; Willow Creek Canyon Comment
  UC1222873  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Van Duzen River (mouth) Eel River, Van Duzen River Comment
  SD53154  Anthoxanthum occidentale Darley F. Howe 1962-5-22 3304 Humboldt 3 miles east of Orick on Bald Mt. road 395 Comment
  HSC8934  Anthoxanthum odoratum H. E. Parks, S. T. Parks Apr 1952 24444 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC8943  Anthoxanthum odoratum R. V. Papike 1962-5-25 31 Humboldt Above Humboldt State University campus 91 Comment
  UC187269  Anthoxanthum odoratum Joseph P. Tracy 1906-4-29 2424 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC725497  Apocynum cannabinum A. A. Heller 1923-7-10 13794 Humboldt Eel R. between Scotia and Pepperwood; Eel R Comment
  UC502925  Aquilegia formosa Joseph P. Tracy 1932-7-13 10504 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC45442  Aquilegia formosa var. formosa M. Alcasas 1978-5-6 62 Humboldt Maple Creek Rd. 1.5 mi. W of Mad River crossing 161 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC73407  Arabis breweri var. breweri B. Potter, L. Sieburth, Susan Ahrens 1981-4-25 648 Humboldt Horse Mtn., 3.6 mi. S of Hwy. 299 on road to Titlow Ski Area 915 Comment
  HSC6527  Arabis glabra D. E. Anderson 1962-7-10 2245 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC594249  Arabis glabra S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3418 Humboldt nw slopes Buck Mountain 822 Comment
  HSC98619  Arabis glabra var. glabra Cara Witte 2007-5-31 154 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC48750  Arabis holboellii var. retrofracta Brad Klipfel 1973-6-10 76 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73601  Arabis suffrutescens M. A. Baker 1980-7-23 3148 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS53191  Arabis suffrutescens var. horizontalis Joseph P. Tracy 1933-7-25 12878 Humboldt North Coast Ranges, Grouse Mt. 1524 Comment
  HSC72985  Aralia californica M. A. Baker 1980-5-17 1191 Humboldt Near Le Perron Peak 792 Comment
  SDSU2557  Aralia californica Harvey 1938-8-13 2247 Humboldt Humbolt State Redwood Park. Comment
  HSC95925  Arbutus menziesii Will Ferrand 2002-4-27 38 Humboldt 1 mi. E of the intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  POM118486  Arbutus menziesii Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC585939  Arctostaphylos Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  UC585946  Arctostaphylos Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23907  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1947-7-9 17861 Humboldt Horse Mountain 1432 Comment
  RSA47097  Arctostaphylos cinerea Doris K. Kildale 1926-4-4 1721 Humboldt Hulbdt County: Northern end of county at Del Norte line, Bluff between Redwood high & ocean Comment
  CAS-BOT-BC23747  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. hwy. 299, Arcata to Willow Creek. 274 Comment
  CAS-BOT-BC23755  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1328 Humboldt Patrick's Point Comment
  CAS-BOT-BC23780  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15074 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23795  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  HSC7614  Arctostaphylos columbiana J. Pursell 1964-11-1 1116 Humboldt Hwy. 96, 8 mi. S of Orleans Comment
  JEPS38944  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  UC1198661  Arctostaphylos columbiana Joseph P. Tracy 1928-3-4 8403 Humboldt Miranda South Fork of Eel River 121 Comment
  UC397305  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6169 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC585911  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  UC585922  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
  UCD50759  Arctostaphylos columbiana Roman Gankin; Richard Hildreth 1967-10-26 1169 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  RSA293169  Arctostaphylos columbiana var. columbiana Thomas W. Nelson, James Nelson, A. Nelson 1976-3-11 2267 Humboldt Beside old highway 101 along north side of Table Bluff. Comment
  HSC102137  Arctostaphylos glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1041 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SD230217  Arctostaphylos glandulosa subsp. glandulosa Louis C. Wheeler 1959-8-1 7621 Humboldt Queens Peak Mine. Comment
  UC585935  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on the road towards Bell Springs); North Coast Regions 762 Comment
  RSA632798  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27760 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  BLMAR54  Arctostaphylos manzanita Jennifer Anthony-Wheeler 1994-2-14 54 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  RSA633014  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27807 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  SEINET11991009  Arctostaphylos manzanita S. Edwards, Roderick, W. 1983-1 103 Humboldt in Samoa at W end of Eureka-Samoa bridge Comment
  CAS-BOT-BC38829  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain. 670 Comment
  CAS-BOT-BC38839  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  UC585968  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCR32076  Arctostaphylos nevadensis David J. Keil 1983-7-2 17331 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  CAS-BOT-BC40075  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  UCD52854  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1175 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  SEINET11989057  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1179 Humboldt 21.4 mi E of US 101 on Bald Hills Rd (from Orick), French Camp Ridge Comment
  HSC7703  Arctostaphylos patula J. Pursell 1964-11-1 1112 Humboldt 3 mi. S of Hoopa on Hwy. 96 Comment
  CAS-BOT-BC43995  Arctostaphylos uva-ursi Bolimannsou 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC47207  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka penisnula. Comment
  UC1196866  Arctostaphylos uva-ursi J. P. Tracy 1899-3-26 299 Humboldt Rick's Prairie immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC384746  Arenaria serpyllifolia var. serpyllifolia Joseph P. Tracy 1933-5-18 12192 Humboldt Along Mad River, near Blue Lake 15 Comment
  UCD56445  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD98448  Armeria maritima subsp. californica Linda M. Barker 1976-6-1 1553 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC73159  Arnica discoidea M. A. Baker 1980-5-18 1322 Humboldt Near Black Mtn. 1006 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
  SEINET3098730 Image available Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie Comment
  HSC48525  Arrhenatherum elatius Thomas W. Nelson, Jane P. Nelson 1978-7-3 4412 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC99892  Arrhenatherum elatius J. P. Smith 1994-6-12 11197 Humboldt Along West End Road, Arcata 12 Comment
  HSC4719  Artemisia douglasiana Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  HSC75275  Artemisia douglasiana J. O. Sawyer, D. A. Thornburgh 1980-9-9 4080 Humboldt Mill Creek Lake and surrounding meadows Comment
  SEINET201064  Artemisia heterophylla Joseph P. Tracy 1910-9-25 Humboldt Region about Humboldt Bay. 0 Comment
  CAS-BOT-BC90871  Artemisia pycnocephala Lester Rowntree 1937-8-15 s.n. Humboldt Little River Comment
  HSC40299  Artemisia pycnocephala Linda M. Barker 1976-8-2 1675 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  SD42225  Artemisia pycnocephala Carl B. Wolf 1940-11-10 3868 Humboldt Coast south of Mendocino, 1.8 miles north of where road turns inland to Petrolia 24 Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  RSA34239  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino Comment
  CAS-BOT-BC400531  Asarum caudatum Joseph P. Tracy 1935-7-23 14160 Humboldt Trinity Summit. Lower end of Brett Hole 1584 Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  HSC99362  Asarum caudatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 11 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  HSC98125  Asarum caudatum Cara Witte 2007-6-28 379 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  POM228362  Asarum caudatum C. C. Harris, S. K. Harris 1936-6-14 s.n. Humboldt On Yager Road from Carlotta 457 Comment
  SEINET6652462  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Vicinity of Eureka Comment
  HSC56479  Asarum hartwegii Griswold, Butler 1979-7-12 7310 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA47105  Asclepias speciosa Doris K. Kildale 1925-7-5 s.n. Humboldt Willow Creek Flat 152 Comment
  UC1197605  Asclepias speciosa Joseph P. Tracy 1911-7-8 3472 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  CAS-BOT-BC65939  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC73807  Aspidotis densa M. A. Baker 1980-6-16 1927 Humboldt Near Monks Camp. 1097 Comment
  RSA0006694  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  BLMAR295  Astragalus pycnostachyus var. pycnostachyus Jennifer Anthony-Wheeler 2002-6-25 295 Humboldt King range, South side Mattole Estuary on riverbank behind dunes 3 Comment
  HSC25767  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC64136  Astragalus umbraticus J. P. Smith, J. O. Sawyer, R. J. Cole 1977-7-2 3054 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  CAS-BOT-BC69520  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon River. Comment
  HSC976  Athyrium filix-femina var. cyclosorum Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC82971  Atriplex prostrata A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UC1152027  Avena fatua Joseph P. Tracy 1951-5-26 19510 Humboldt Willow Creek Trinity River Valley, Trinity River 152 Comment
  UC275449  Azolla filiculoides Parks and Tracy 1925-6-24 2763 Humboldt ditches along R.R. and tide flats Eureka Comment
  JEPS40685  Baccharis pilularis W. L. Jepson Sep 19 1924-Sep 21 1924 10655 Humboldt Garberville Comment
  UC1199296  Baccharis pilularis Joseph P. Tracy 1933-10-15 13099 Humboldt Miranda South Fork of Eel River 121 Comment
  CHSC19741  Baccharis pilularis subsp. consanguinea Gary J. Stebbins 1970-2-2 7 Humboldt Along U. S. 101 1.5 miles north of Patricks Point State Park. 83 Comment
  HSC39984  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1198288  Barbarea orthoceras Joseph P. Tracy 1913-4-13 4037 Humboldt on a branch of Ryans Slough about 3 miles East of Eureka 152 Comment
  UC552762  Beckmannia syzigachne Joseph P. Tracy 1935-5-25 13848 Humboldt Fort Seward 106 Comment
  POM41982  Bellis perennis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SD88368  Bellis perennis Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  JEPS26215  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
  CAS-BOT-BC75677  Berberis nervosa L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  HSC3352  Berberis nervosa Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel 46 Comment
  SDSU13768  Berberis nervosa D. F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Bald Hill Road. 457 Comment
  CHSC23180  Berberis pinnata Robert F. Thorne; P. Everett 1965-8-5 35141 Humboldt 5.2 mi. N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC3366  Berberis pinnata G. N. Bos 1965-5-2 246 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC35016  Berberis pinnata Thomas W. Nelson 1975-5-24 1880 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC412989  Bistorta bistortoides Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Comment
  HSC55066  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11638 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC66276  Blechnum spicant Ira L. Wiggins 1957-6-20 14132 Humboldt east side of highway, Trinidad Comment
  JEPS97812  Blechnum spicant unknown 1922-1 Humboldt LBJ Grove along Redwood Creek path, Redwoods National Park Comment
  POM319594  Blechnum spicant Patricia Wilder 1968-8-21 4382 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  SEINET11716007  Blechnum spicant D. E. Boufford 1973-1 11067 Humboldt Eureka, Sequoia Park Comment
  CAS-BOT-BC15786  Boechera acutina Thomas Nelson 1979-7-11 5028 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit. Comment
  UC562687  Boechera retrofracta Joseph P. Tracy 1935-7-30 14379 Humboldt Salmon Summit 2103 Comment
  UC552303  Boechera subpinnatifida Joseph P. Tracy 1933-7-25 12878 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1103643  Bolboschoenus maritimus Joseph P. Tracy 1934-7-20 13471 Humboldt along shore Big Lagoon; along shore Big Lagoon 3 Comment
  CDA5649  Borago officinalis T. C. Fuller 1958-6-17 598 -58 Humboldt Ferndale. 0 Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  UC585961  Boschniakia strobilacea Joseph P. Tracy 1925-6-7 7059 Humboldt Northern Coast Ranges, Willow Creek Canyon. 609 Comment
  CAS-BOT-BC420261  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC420273  Boykinia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC420259  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon Comment
  JEPS49660  Boykinia occidentalis Milo S. Baker 1923-7-19 84 b Humboldt Canyon near Carlotta (North Coast Trip); Canyon near Carlotta, North Coast Trip Comment
  CAS-BOT-BC106295  Brickellia californica S. K. Harris; Mrs. C. M. Wilder 1938-9-8 877 Humboldt Bars on Van Duzen River, below Blue Slide Comment
  RSA695640  Brickellia californica J. Russell Bruff 1937-8-17 932 Humboldt Richardson Grove, bed of Eel River. Comment
  JEPS18752  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain 1402 Comment
  HSC37928  Briza maxima Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC526899  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua North Coast Ranges 762 Comment
  CAS-BOT-BC484612  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-5-30 14837 Humboldt In firm grassy flats, edge of sand dunes. Near Samoa, on Humboldt Bay 6 Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 Comment
  RSA91688  Bromus carinatus F. W. Peirson 1941-7-23 13118 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  HSC98129  Bromus carinatus var. carinatus Cara Witte 2007-6-28 391 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  UC1103281  Bromus carinatus var. carinatus Joseph P. Tracy 1941-6-15 16910 Humboldt Wilder Ridge 609 Comment
  UC180484  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-13 4100 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC37585  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-11 5408 Humboldt Summit above Hubbard's Station Comment
  UC526734  Bromus carinatus var. carinatus Joseph P. Tracy 1932-7-12 10449 Humboldt lamath Mountains, Trinity Summit, at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  UC526848  Bromus carinatus var. carinatus H. E. Parks and Joseph P. Tracy 1934-7-6 11142 Humboldt Northern Coast Ranges, Iaqua Iaqua; Northern Coast Ranges, Iaqua 762 Comment
  UC526866  Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  SEINET201048 Image available Bromus carinatus var. marginatus Harold E. Parks, Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad Comment
  UCD59082  Bromus carinatus var. marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  UC526931  Bromus commutatus Joseph P. Tracy 1933-6-9 12534 Humboldt North Coast Ranges, on Eel River, Shively Shively; North Coast Ranges, Eel River, Shively 30 Comment
  UC1131155  Bromus diandrus H. S. Yates 1936-6-17 5707 Humboldt lower nw slope of Buck Mountain Buck Mountain 792 Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UCD59709  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge, north of Harris 5 miles. 944 Comment
  CAS-BOT-BC161533  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  CAS-BOT-BC161534  Bromus tectorum Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC9375  Bromus vulgaris D. E. Anderson 1965-9-5 4080 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC1131315  Bromus vulgaris H. S. Yates 1936-6-23 5872 Humboldt 3 mi se of Scotia Comment
  UC180218  Bromus vulgaris Joseph P. Tracy 1913-6-21 4253 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC12357  Cakile maritima Steve Dorei 1970-10-7 145 Humboldt McKinleyville Comment
  UC902001  Cakile maritima Joseph P. Tracy 1948-6-10 18062 Humboldt Trinidad, beach w of town Trinidad 3 Comment
  CAS-BOT-BC185316  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt Bank of Mattole River at bridge 3 miles east of Petrolia. 30 Comment
  UC552721  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14371 Humboldt Salmon Summit 2011 Comment
  UC100200  Calamagrostis nutkaensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1194 Humboldt Eureka; southern outskirts Comment
  UC673026  Calandrinia ciliata Joseph P. Tracy 1933-7-3 12638 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1922745  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35323 Humboldt CLAM BEACH COUNTY PARK: along highway. Comment
  JEPS84870  Callitriche stagnalis C. Thomas Philbrick 1987-6-9 2048 Humboldt ca. 0.5 mi. n. Orick (Redwood Creek, n. side of Rt. 101); Redwood Creek Comment
  HSC3803  Callitriche trochlearis D. B. Bader 1963-4-1 42 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  CAS-BOT-BC32372  Callitriche trochlearis Stuart Kimball Harris; Joseph Prince Tracy; Harry Stanley Yates 1936-6-17 3454 Humboldt NW slopes of Buck Mountain 822 Comment
  HSC76319  Calocedrus decurrens Denis Kearns 1981-7-6 60 Humboldt Near Mosquito Lake 1121 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
  UC1103466  Calochortus tolmiei Joseph P. Tracy 1933-6-13 12592 Humboldt near summit on road from Hoopa (w to Bair's); Hoopa Mountain 914 Comment
  UC667128  Calochortus tolmiei Joseph P. Tracy 1933-7-11 12659 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UCD139588  Calochortus tolmiei Collector Unknown 1935-4-8 s.n. Humboldt Fort Seward. Comment
  HSC34875  Calochortus tolmiei Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  HSC16567  Calypso bulbosa W. R. Rogers 1967-3-19 227 Humboldt Bar W Ranch, 1 mi. W of Bridgeville Comment
  HSC70954  Calypso bulbosa Thomas W. Nelson 1977-6-15 3429 Humboldt Along FS 6N01, just N of Clear Lake 1372 Comment
  HSC72777  Calypso bulbosa T. R. Crumbo 1977-4-6 4 Humboldt Hwy. 36, 0.25 mi W of Grizzly Creek State Campground. 91 Comment
  RSA168802  Calypso bulbosa Joseph P. Tracy 1950-5-7 18643 Humboldt Under firs: about 5 miles north of Bridgerville on the road to the South Yager Valley. Abundant in certain favored spots only. Comment
  HSC54024  Calyptridium monospermum Griswold, Butler 1979-7-12 7193 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1198374  Calyptridium monospermum Joseph P. Tracy 1919-9-18 5223 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1889 Comment
  HSC98837  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-30 967 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  CDA39887  Calystegia soldanella B. F. Kemp May 1958 1202 -58 Humboldt Mouth of Mad River. 0 Comment
  CAS-BOT-BC493387  Camassia quamash subsp. linearis Doris Kildale 1931-5-10 10687 Humboldt Snow Camp Comment
  HSC59194  Camissonia cheiranthifolia Terry Roth 1979-4-21 16 Humboldt 1 mi. down the S Jetty Rd. 3 Comment
  RSA245215  Camissonia cheiranthifolia subsp. cheiranthifolia T. M. Mingo 1965-05 s.n. Humboldt Clam Beach Comment
  HSC40377  Camissonia strigulosa Linda M. Barker 1976-4-30 1406 Humboldt 3 mi. W of Arcata Comment
  CDA18242  Camissoniopsis cheiranthifolia G. D. Barbe, T. C. Fuller 1974-6-19 1880 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 30 Comment
  LA206042  Camissoniopsis cheiranthifolia C. C. Harris; S. K. Harris 1939-8-23 sn Humboldt Samoa Comment
  CAS-BOT-BC160247  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. R. Abrams 1916-7-18 6020 Humboldt Arcata toTrinidad Comment
  UC665629  Camissoniopsis cheiranthifolia subsp. cheiranthifolia H. E. Parks August, 1941 24180 Humboldt sand dunes Little River State Park Comment
  UCSB15948  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  SEINET10463130  Campanula prenanthoides Mcgregor 1921-8-17 MCGREGOR s.n. Humboldt ABANDONED ROAD GRADE, ORICK, "PLANTS OF REQUA" Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  HSC99576  Campanula scouleri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 241 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
  RSA12439  Campanula scouleri C. B. Wolf 1934-7-2 5854 Humboldt 2 miles from Bald Mt. on road to Korbel. Comment
  SEINET10463476  Campanula scouleri Kildale 1937-7-18 KILDALE 15143 Humboldt HORSE MOUNTAIN Comment
  HSC6629  Capsella bursa-pastoris S. J. Roberts 1965-4-8 11 Humboldt 0.5 mi. S of junction of Alliance Rd. and Hwy. 101 Comment
  CAS-BOT-BC37251  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt Northern Coast Region. Region about Humboldt Bay. South slope of Humboldt Hill. 152 Comment
  HSC6689  Cardamine californica E. W. Styskel 1963-4-20 16 Humboldt 3 mi SE of Korbel on Snow Camp Rd. 290 Comment
  HSC6691  Cardamine californica D. E. Anderson 1962-3-31 1965 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  UC1199192  Cardamine californica Joseph P. Tracy 1949-6-6 18305 Humboldt ne Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain, ne Hawkins Bar 1280 Comment
  UC1199201  Cardamine californica Joseph P. Tracy 1926-2-28 7375 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, , nr South Fork T 182 Comment
  HSC99073  Cardamine californica var. californica Cara Witte 2008-7-2 808 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC492257  Cardamine californica var. californica Joseph P. Tracy 1927-3-27 7863 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  JEPS79885  Cardamine californica var. sinuata Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  HSC6649  Cardamine oligosperma W. F. Nickel 1965-3-13 Humboldt 10 mi. W of Prairie Creek State Park, 0.25 mi. S of Fern Canyon on road to Fern Canyon Comment
  UC1199202  Cardamine oligosperma Joseph P. Tracy 1918-4-14 4873 Humboldt s end Dows Prairie (Fish's Mill Creek); Northern Coast Ranges, , s end Dows Prairie 60 Comment
  UC1225795  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River 6 Comment
  CAS-BOT-BC281809  Carduus tenuiflorus Doris K Niles 1951-1-1 s.n. Humboldt Niles Ranch Comment
  HSC70464  Carex aquatilis Gail Newton 1980-7-20 1646 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC18001  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC104137  Carex brevicaulis G. Durant, G. Jaeger 2005-5-16 19051 Humboldt Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC303148  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast RAnges 822 Comment
  UC303007  Carex echinata Joseph P. Tracy 1926-6-27 7666 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC194806  Carex echinata Joseph P. Tracy 1914-7-4 4532 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC76841  Carex exsiccata L. P. Janeway 1982-8-7 115 Humboldt Dry Lagoon 3 Comment
  POM224512  Carex exsiccata H. C. Cantelow 1936-5-18 s.n. Humboldt 8 miles NE of Orick. Comment
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Jan 20 2011
  UCR52379  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  UC1103079  Carex feta Joseph P. Tracy 1936-6-3 14846 Humboldt at Willow Creek Trinity River Valley 152 Comment
  HSC40977  Carex fracta J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC21281  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  CAS-BOT-BC20872  Carex globosa Joseph Prince Tracy 1929-6-3 8605 Humboldt North Coast Ranges. Willow Creek Canyon. Mouth of East Fork. 487 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  UC562662  Carex integra Joseph P. Tracy 1932-7-15 10589 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  CHSC90280  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8601 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC562264  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC7788  Carex laeviculmis Joseph Prince Tracy 1932-7-16 10635 Humboldt Trinity Summit 1584 Comment
  RSA88658  Carex laeviculmis F. W. Peirson 1941-7-23 13091 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  RSA167279  Carex lenticularis var. lipocarpa Joseph P. Tracy 1950-8-7 19266 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  HSC103142  Carex lenticularis var. lipocarpa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1068 Humboldt Patterson Meadows 1555 Comment
  HSC97361  Carex leptalea Juha Pykala, D. H. Norris 1987-6-24 1895 Humboldt Big Lagoon. 0 Comment
  RSA88691  Carex leptopoda F. W. Peirson 1923-7-11 3665 Humboldt 18 miles N. of Eureka Comment
  CAS-BOT-BC31584  Carex luzulina var. luzulina Joseph Prince Tracy 1930-7-16 8987 Humboldt South Fork Mountain, in wet meadow at McKay Camp. 1676 Comment
  UC249511  Carex lyngbyei Joseph P. Tracy 1922-5-28 6059 Humboldt Little River mouth Northern Coast Ranges 3 Comment
  JEPS79850  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC36162  Carex microptera Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1891 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CAS-BOT-BC32131  Carex multicaulis Joseph Prince Tracy 1927-3-27 7862 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  SEINET3905221  Carex nudata L. P. Janeway 1983-7-23 434 Humboldt Arcata North quad, along north edge of Mad River, near junction of North Bank Road and Hunts Drive.; 0 Comment
  UC1103621  Carex nudata Joseph P. Tracy 1933-5-18 12194 Humboldt 6 mi W of Blue Lake (Mad River) 15 Comment
  UCD140708  Carex obnupta Linda M. Barker 1976-4-30 1417 Humboldt 3 miles west of Arcata. Comment
  JEPS80014  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  RSA364776  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Road about 3 miles west of junction with Kneeland-Bridgeville Road. Comment
  CAS-BOT-BC119243  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC119244  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  UC2015859  Carex pellita Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4346 Humboldt Coast Range, Burr Valley area. 'False Burr Valley', beside Burr Creek. Comment
  CAS-BOT-BC118598  Carex praticola Joseph Prince Tracy 1914-5-3 4421 Humboldt At Eureka 60 Comment
  SEINET3138427  Carex preslii R. Tallent 1987-8-11 895 Humboldt Six Rivers NF, T6N R4E Sec. 32 NE 1/4 of NE 1/4; roadside S of Horse Mtn. Comment
  CAS-BOT-BC118009  Carex rossii Joseph Prince Tracy 1935-6-23 13977 Humboldt French Camp Ridge. 1066 Comment
  CAS-BOT-BC118010  Carex rossii Joseph Prince Tracy 1935-6-23 13976 Humboldt French Camp Ridge. 1066 Comment
  SEINET958239  Carex rossii H. E. Parks, Joseph P. Tracy 1933-1 12161 Humboldt Vicinity of Trinidad 61 Comment
  CAS-BOT-BC118005  Carex rossii Joseph Prince Tracy 1949-5-8 18295 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 Comment
  JEPS79869  Carex rossii Joseph P. Tracy 1904-5-1 2041 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC75279  Carex rostrata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4076 Humboldt Mill Creek Lake and surrounding meadows Comment
  RSA757866  Carex subbracteata P. F. Zika 2009-6-15 24494 Humboldt Above route 299, 2.3 road miles west of junction with Chezen Road. 680 Comment
  SEINET4290245 Image available Carex subbracteata Unknown 2009-1 24497 Humboldt Outer North Coast Range (NCoRo), between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. Comment
  CAS-BOT-BC115569  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4745 Humboldt Near Blocksburg Comment
  UC194812  Carex tumulicola Joseph P. Tracy 1912-7-26 3835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC249758  Carex tumulicola Joseph P. Tracy 1923-6-19 6296 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC1561802  Carex tumulicola Barbara Ertter with Thomas J. Delendick 1987-5-16 6926 Humboldt ca. 15 air mi e Arcata (on n side of road, Vista Point just w of Berry Summit on Hwy. 299) 914 Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  UC1103607  Carex utriculata Joseph P. Tracy 1939-7-9 16322 Humboldt Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC114986  Carex viridula Joseph Prince Tracy 1924-7-13 6720 Humboldt In brackish swamp, Big Lagoon. 6 Comment
  CAS-BOT-BC249129  Castilleja affinis Doris K. Kildale 1926-6-8 2130 Humboldt Bug Creek 792 Comment
  JEPS83  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 b Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  JEPS83013  Castilleja affinis subsp. affinis L. R. Heckard 1984-5-14 1655 Humboldt 2 mi s Phillipsville (just n of Freeway 101 on Avenue of the Giants) 83 Comment
  HSC45090  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 34 Comment
  JEPS25792  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-23 1210 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  JEPS35822  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8968 Humboldt hills above and w Cape Mendocino (about 20 mi n by road of Petrolia) Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  SD131908  Castilleja affinis subsp. litoralis Rimo Bacigalupi, G. T. Robbins, C. L. Custer 1954-8-11 4758 Humboldt Road embankment, 1.2 miles south of Trinidad Comment
  UC147876  Castilleja affinis subsp. litoralis J. P. Tracy 1900-6-25 864 Humboldt immediate vicinity Eureka 0 Comment
  UC582580  Castilleja affinis subsp. litoralis Joseph P. Tracy 1926-6-18 7606 Humboldt e of Fields Landing; Humboldt Hill 152 Comment
  UCSB26617  Castilleja ambigua Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka Comment
  UC582571  Castilleja ambigua subsp. ambigua H. E. Parks and Joseph P. Tracy 1928-9-8 8503 Humboldt Big Lagoon 6 Comment
  JEPS93175  Castilleja ambigua subsp. humboldtiensis Margriet Wetherwax and Kevin Downing 1993-8-9 2455 Humboldt just n Eureka (s side of Eureka Slough, e side of Humboldt Bay, near Bayside Rd and Myrtle, just past Pigeon Point, e side of road); Humboldt Bay 5 Comment
  HSC56121  Castilleja applegatei G. L. Clifton, Griswold 1979-8-1 11903 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC60038  Castilleja attenuata M. A. Baker 1978-5-6 492 Humboldt 2 km. W of Weitchpec along Klamath River Comment
  UC168996  Castilleja attenuata Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  HSC101997  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 896 Humboldt Patterson Meadows 1555 Comment
  HSC56082  Castilleja miniata G. L. Clifton, Griswold 1979-7-31 11766 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC76048  Castilleja miniata Overton, Butler 1979-8-2 12544 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC99292  Castilleja miniata Jimerson, J. Pageau 1979-8-10 718 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  HSC103246  Castilleja pruinosa Lisa D. Hoover 1996-6-12 145 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mtn. Quad, Horse Mtn. 1463 Comment
  HSC39058  Castilleja rubicundula subsp. lithospermoides Thomas W. Nelson, Jane P. Nelson 1976-5-31 2644 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  JEPS10638  Castilleja rubicundula subsp. lithospermoides W. L. Jepson 1934-5-8 16719 Humboldt n of Redway; South Fork Eel River Comment
  JEPS35816  Castilleja wightii Rimo Bacigalupi, and L. R. Heckard 1964-7-27 8962 Humboldt .12 mi e and above Shelter Cove (in shaded bend of road) Comment
  UC1502114  Ceanothus R. Sutherland 1976-5-11 7 .11.76 Humboldt just outside Sec 32 Pt. Delgado Quad.; Pt. Delgada Quad. 609 Comment
  HSC35785  Ceanothus cordulatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2098 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  CDA36149  Ceanothus cuneatus CDFA Staff Jun 1977 Humboldt Berry Summit. 0 Comment
  SEINET10805177  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 Burge 1154 c Humboldt Willow Creek watershed, north-west slope of Brush Mountain, west of entrance to C.R.R. Brown and Sons Quarry, roadside on SR 299, 6.8 road miles (10.9 km) east of Berry Summit, 4.0 km 260 deg. (True) WSW of Willow Creek. 410 Comment
  CAS-BOT-BC49659  Ceanothus foliosus var. foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 miles south of Bridgeville 457 Comment
  CAS-BOT-BC50056  Ceanothus incanus Carl B. Wolf 1927-8-30 1243 Humboldt Paradise, 5 or 6 mi. N. of Ettersburg Comment
  HSC37052  Ceanothus incanus R. Sutherland 1975-6-3 1 .3675 Humboldt 396 Comment
  CAS-BOT-BC51212  Ceanothus parryi Carl B. Wolf 1941-7-28 11092 Humboldt Slopes along Eel River, 1 mi. so. of Miranda. 30 Comment
  HSC43211  Ceanothus parryi R. Sutherland 1975-4-4 1 .4475 Humboldt Rd. bank of Perry Meadow Rd. 244 Comment
  HSC43246  Ceanothus parryi R. Sutherland 1975-7-5 8 .5775 Humboldt 244 Comment
  HSC43188  Ceanothus pumilus R. Sutherland 1976-4-17 1 .17476 Humboldt 549 Comment
  SEINET201060  Ceanothus pumilus J. P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  CAS-BOT-BC52954  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3289 Humboldt Big Lagoon - coast terrace Comment
  HSC18341  Ceanothus thyrsiflorus Francis Winter 1960-4-23 Humboldt 1.0 mi S of Dollar Ranch Korbel-Maple Creek Rd. 152 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
  JEPS44138  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of the South Fork (along the Eel River, Camp Grant); Eel River 45 Comment
  UC906760  Centaurium muehlenbergii Joseph P. Tracy 1947-7-2 17756 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA12461  Centaurium muehlenbergii Carl B. Wolf 1934-6-30 5832 Humboldt One half mile from Briceland on road to Garberville. 91 Comment
  BLMAR299  Centaurium tenuiflorum Clara Sander 2002-7-16 299 Humboldt King range, East of Capetown, growing east of wildcat rd 152 Comment
  JEPS113353  Centaurium tenuiflorum Jeff Greenhouse 2003-8-27 5117 Humboldt Hwy 101 Comment
  UC1196469  Cephalanthera austiniae Stuart Harris 1936-6-12 3300 Humboldt Chalk Mt. 609 Comment
  UC852498  Cerastium arvense Milo S. Baker 1931-5-17 5187 Humboldt along Hwy. 4.2 mi. s. Garberville Comment
  HSC12705  Cerastium glomeratum Jana Kattenhorn 1970-10-28 151 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC39961  Cerastium glomeratum Linda M. Barker 1976-4-13 1381 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC4106  Cerastium glomeratum R. D. Modafferi 1965-3-19 57 Humboldt .5 mi. S of Trinidad on Hwy. 101 305 Comment
  UC1199058  Cercis occidentalis Joseph P. Tracy 1930-9-8 9176 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC673250  Cercis occidentalis Lincoln Constance and Reed C. Rollins 1942-5-12 2895 Humboldt bluffs at junction of Klamath River and Salmon River (1 mi s of Somes Bar); Klamath-Siskiyou Region 152 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  SBBG34240  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  HSC48701  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-31 258 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1197014  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1946-7-28 17625 Humboldt head of Willow Creek Willow Creek Canyon (along Trinity Hwy) 762 Comment
  UCSB30589  Chamerion angustifolium subsp. circumvagum Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca. 1/2-3/4 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 5 mi. E. of jct. of Fickle Hill Rd. and Park Ave., Arcata Comment
  HSC70561  Cheilanthes gracillima M. A. Baker 1980-7-19 3028 Humboldt Near Bret Hole. 1814 Comment
  UC1225780  Chenopodium album Joseph P. Tracy 1948-9-5 18203 Humboldt Grizzly Camp Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UC55946  Chenopodium botrys J. P. Tracy 1902-8-10 1767 Humboldt Eel River Railroad Station Immediate vicinity of Eureka 0 Comment
  RSA44503  Chenopodium pumilio H. M. Pollard 1947-8-31 s.n. Humboldt Orleans Hotel grounds, Orleans. Comment
  HSC71586  Chimaphila umbellata Gail Newton 1980-6-16 187 Humboldt Near Onion Mtn. 1280 Comment
  UC1197603  Chimaphila umbellata Joseph P. Tracy 1948-8-15 18140 Humboldt on ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UC154039  Chimaphila umbellata Joseph P. Tracy 1908-6 2879 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  SFV18491  Chimaphila umbellata C. Lee 2002-4-27 32 Humboldt USFS Road 13, about 3 miles northwest of intersection with Highway 96. Comment
  UCSB34195  Chloropyron maritimum subsp. palustre Kearns, Dennis 1979-8-24 Humboldt Spring Tide area of Arcata Bay, on edge of South end of "I" Street near the Arcata Boat Launching Facility Comment
  POM92409  Chrysanthemum leucanthemum L. R. Abrams 1922-6-25 8236 Humboldt 2 miles south of Fortuna Comment
  CAS-BOT-BC36479  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road at Thorn 304 Comment
  RSA46797  Chrysolepis chrysophylla Doris K. Kildale 1927-2-22 2978 Humboldt Kneeland Prarie. Comment
  UC162706  Chrysolepis chrysophylla Joseph P. Tracy 1911-7-8 3448 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 182 Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  JEPS11944  Cirsium arvense Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-11 4757 Humboldt 0.5 mi n Mad River bridge (n of Arcata, in field along U.S. Highway 101); U.S. Highway 101 Comment
  JEPS59187  Cirsium arvense W. L. Jepson 1936-8-17 17927 Humboldt 3 mi s Fields Landing Comment
  CDA1176  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  CDA1329  Cirsium occidentale var. candidissimum T. R. Haig 1960-6-21 s.n. Humboldt 7 mi. S of Garberville. Comment
  CAS-BOT-BC288713  Cirsium remotifolium Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC288714  Cirsium remotifolium Peter H. Raven; R. Snow 1958-7-21 13654 Humboldt 7.2 miles NW of Capetown on road to Ferndale Comment
  UC1199256  Cirsium remotifolium Joseph P. Tracy 1921-7-10 5851 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  SEINET11833946  Cirsium remotifolium J. P. Tracy 1947-1 17711 Humboldt Carlotta, by old Strong's District School House, 5 mi E of town 61 Comment
  HSC98726  Cirsium remotifolium var. odontolepis Cara Witte 2008-7-2 806 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC582537  Cirsium remotifolium var. rivulare Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  HSC40956  Cirsium vulgare Linda M. Barker 1976-8-24 1684 Humboldt 3 mi. W of Arcata Comment
  HSC96518  Cirsium vulgare Gordon Leppig 1998-8-23 1071 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC228801  Cistanthe umbellata Doris K. Kildale 1925-8-17 1227 Humboldt Trinity Summit along summit near Ranger Station 1828 Comment
  RSA791717  Clarkia Robert F. Thorne, P. Everett 1965-8-5 35152 Humboldt Samoa Dunes. 3 Comment
  UCR123961  Clarkia affinis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  UC1196995  Clarkia amoena Joseph P. Tracy 1913-7-20 4381 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  CAS-BOT-BC160961  Clarkia amoena subsp. amoena Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC160959  Clarkia amoena subsp. amoena S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  POM228379  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 671 Humboldt South side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  LA206050  Clarkia concinna H. Lewis; M. Lewis 1947-6-13 419 Humboldt Hwy 36, 1.9 mi W of Van Duzen River Bridge Comment
  UC562522  Clarkia concinna subsp. concinna Joseph P. Tracy 1936-6-10 14927 Humboldt mountain slopes w of mouth South Fork Trinity River 457 Comment
  UC1222857  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1950-6-15 18806 Humboldt 7 mi n Harris; Mail Ridge Comment
  UC58846  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1327 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC183772  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1912-7-31 3907 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  CAS-BOT-BC172515  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  HSC43846  Clarkia purpurea subsp. quadrivulnera Maralyn O'Meara 1974-7-17 555 Humboldt Comment
  UC1196977  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1938-7-4 15984 Humboldt Valley of South Yager Creek 762 Comment
  UC1196980  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-6-14 4498 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  UC198877  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew July 1888 Humboldt Campbell's Comment
  HSC98078  Clarkia purpurea subsp. viminea Cara Witte 2007-7-3 401 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  HSC100576  Clarkia rhomboidea Carl C. Marshall Jun 1886 293 Humboldt Pine Creek. Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  CAS-BOT-BC439096  Claytonia cordifolia Harold E. Parks; Joseph P. Tracy 1949-6-25 11680 Humboldt Trinity Summit: at Box Camp 1463 Comment
  HSC74338  Claytonia parviflora subsp. parviflora M. A. Baker 1980-5-18 1282 Humboldt Near Black Mtn. 1006 Comment
  HSC101982  Claytonia perfoliata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 879 Humboldt Patterson Meadows 1566 Comment
  UC673001  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1937-6-27 15380 Humboldt w of mouth of South Fork of Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  HSC65860  Claytonia saxosa Gail Newton 1980-6-28 735 Humboldt Near Mad River Butte. 1536 Comment
  CHSC1384  Claytonia sibirica M. Underhill 1952-7-12 Humboldt Wet bank. 121 Comment
  HSC17728  Claytonia sibirica D. E. Anderson 1961-8-11 1725 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC45613  Claytonia sibirica Diane L. Reed 1978-5-7 56 Humboldt Fourmile Creek on Friday Ridge Rd., 4 mi. from Hwy. 299 Comment
  HSC73102  Claytonia sibirica J. Detzer 1977-4-8 2 Humboldt S end of Patricks Point State Park, 0.2 mi. W of Hwy. 101, 5 mi. N of Trinidad 61 Comment
  RSA299448  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET11942405  Claytonia sibirica Unknown 1933-1 3407 Humboldt Redwood Forest, Van Duzen River 6 mi W of Bridgeville Comment
  SFV1197  Claytonia sibirica J. Turner, F. M. Ball 1962-7-9 s. n. Humboldt Beside scenic Redwood Highway about 2 miles south of junction with freeway, 40 miles north of Mendocino-Humboldt county line. Comment
  CAS-BOT-BC92591  Clematis ligusticifolia Doris K. Kildale 1927-7-3 3643 Humboldt Willow Creek Flat. 152 Comment
  HSC15444  Clintonia andrewsiana D. E. Anderson 1965-11-1 4167 Humboldt 3 mi. S of Kneeland School Comment
  SEINET12047065  Clintonia andrewsiana Unknown 1972-1 s.n. Humboldt Humboldt State University Forest, W of campus with city limits of Arcata 198 Comment
  SEINET3991733  Clintonia andrewsiana Unknown 1914-5-17 Humboldt Freshwater Creek 305 Comment
  HSC92754  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  JEPS4632  Collinsia grandiflora Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3409 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain); High Prairie 1066 Comment
  JEPS6293  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  RSA127485  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mt. Road at Ski Lodge. 1220 Comment
  UC179948  Collinsia grandiflora Joseph P. Tracy 1914-7-5 4551 Humboldt between High Prairie and Snow Camp Bald Mtn; Northern Coast Ranges, Bald Mtn 1219 Comment
  POM203235  Collinsia heterophylla M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  HSC96243  Collinsia linearis Laurel Goldsmith, Wanda Naylor 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  HSC38493  Collinsia rattanii D. E. Anderson, J. P. Smith 1971-6-18 - 1093 Humboldt Horse Mtn. Comment
  UC203965  Collinsia rattanii Joseph P. Tracy 1918-5-26 4945 Humboldt lower slopes of Grouse Mountain towards Redwood Creek; Northern Coast Ranges, Grouse Mountain 762 Comment
  UC427878  Collinsia sparsiflora var. sparsiflora H. E. Parks and J. P. Tracy 1930-5-25 792 Humboldt Larabee Valley 792 Comment
  JEPS71020  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places Trinity Summit, Corral Prairie 1584 Comment
  HSC97946  Collomia grandiflora Cara Witte 2007-6-27 368 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  UC1197852  Collomia grandiflora Joseph P. Tracy 1947-7-9 17829 Humboldt lower slopes Horse Mountain 1127 Comment
  UC615026  Collomia grandiflora Beryl O. Schreiber 1934-6-6 1143 Humboldt Gray's Resort Redwood Creek (brushy slope) Comment
  UC1197851  Collomia heterophylla Joseph P. Tracy 1911-6-4 3225 Humboldt along river 5 mi from coast; Northern Coast Region, Little River 121 Comment
  UC879765  Collomia heterophylla Elizabeth Parsons Hawver 1915-6-1 Humboldt Carlotta Comment
  HSC45808  Collomia heterophylla J. P. Smith, Steve Selva 1970-6-30 4139 Humboldt Comment
  HSC73719  Collomia tracyi M. A. Baker 1980-7-15 2955 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS26238  Collomia tracyi Joseph P. Tracy 1930-7-16 9046 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCR275122  Conium maculatum Charity A. Hartshorn 2016-4-24 19 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  HSC33175  Conyza canadensis Thomas W. Nelson 1973-8-19 1113 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS23516  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon; along Trinity Hwy 762 Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  UC1196450  Corallorhiza maculata Joseph P. Tracy 1930-7-18 9063 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC28082  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 94 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  HSC98347  Corallorhiza striata T. Jimerson, J. Pageau 1979-6-12 527 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  SEINET200684 Image available Corallorhiza striata var. striata Joseph P. Tracy 1913-6-14 4131 Humboldt Lower foothills of Buck Mountain, on its northwest slope 762 Comment
  JEPS21706  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 mi n Eureka (salt marshes bordering Humboldt Bay) Comment
  JEPS93181  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2462 Humboldt N of Eureka, along N side of Eureka Slough; Jacobs St. turn-off of 101N just beyond bridge over slough; between two Peterbilt warehouses; population extends sporadically to Johns Used and Crashed Cars 5 Comment
  UC1173700  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1939-8-16 16418 Humboldt Grouse Mountain 1524 Comment
  RSA21672  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS41846  Corethrogyne filaginifolia W. L. Jepson 1936-8-17 17931 Humboldt Arcata Comment
  SEINET7836966 Image available Corethrogyne filaginifolia J. B. Davy 1899-6-30 6185 Humboldt Near Ferndale Comment
  UC494209  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale Comment
  HSC6409  Cornus nuttallii Elrid H. Spinas 1948-5-15 27 Humboldt E slope of Redwood Creek along Hwy. 299 Comment
  HSC65074  Cornus nuttallii J. P. Smith, Steve Selva 1970-6-14 3853 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC634835  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt E. Fork Eel R. near Garberville; E. Fork Eel R. Comment
  UCD117252  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA85517  Cornus nuttallii G. R. Campbell 1954-3-24 19022 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  HSC98742  Cornus sericea subsp. occidentalis Cara Witte 2007-6-27 377 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  RSA24326  Cornus sessilis C. B. Wolf 1941-2-28 4048 Humboldt Junction of Willow Creek and its E. fork. 457 Comment
  UC154068  Cornus sessilis Mrs. M. H. Manning 1902-1 Humboldt near Hupa Comment
  UC1197931  Corylus californica Mary Harriet Tracy 1946-5-30 Humboldt 5 mi E of Carlotta (Riverside Park) 30 Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  UC1222290  Corylus californica Joseph P. Tracy 1950-7-31 19226 Humboldt about 1 mi N of Friday's Camp (where road crosses side of Friday Ridge) Comment
  RSA46830  Corylus cornuta var. californica Doris K. Kildale 1926-8-31 2602 Humboldt Mattole Valley, at Geo. H. Mineis. Comment
Read comments
Jan 24 2013
  CAS-BOT-BC143487  Cotoneaster franchetii Peter F. Zika 2007-7-20 23323 Humboldt Lynda Lane near high school, S end of Big Lagoon, (NCo, North Coast) 20 Comment
  RSA730001  Cotoneaster pannosus Peter F. Zika 2007-7-20 263324 Humboldt NCo, North Coast: Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  CAS-BOT-BC291341  Cotula coronopifolia C. L. Hitchcock; J. S. Martin 1939-7-14 5434 Humboldt Above pier at Shelter Cove Comment
  HSC59049  Cotula coronopifolia Thomas Wood 1979-4-20 116 Humboldt At Clam Beach, off Hwy. 101 ca. 7 mi. N of Arcata 3 Comment
  RSA246787  Cotula coronopifolia R. F. Thorne, Percy C. Everett 1965-8-8 35272 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UC540834  Crepis capillaris David D. Keck and J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  UCSC000834  Crepis capillaris H. L. Person 1931-7-30 s.n. Humboldt Eureka, Fieldbrook Comment
  CAS-BOT-BC291483  Crepis capillaris Joseph P. Tracy 1948-9-26 18299 Humboldt Fickle Hill, 6 miles southeast of Arcata 609 Comment
  CAS-BOT-BC291484  Crepis capillaris Roxana S. Ferris 1955-7-11 12977 Humboldt Near Blue Lake Comment
  HSC48323  Crepis capillaris Maralyn O'Meara 1974-7-11 543 Humboldt Kneeland; Barry Ridge Comment
  UC538048  Crepis occidentalis subsp. pumila E. B. Babcock 1932-6-23 402 Humboldt near Bridgeport; Art Renfroe's place Comment
  UCD138688  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  HSC57921  Cryptantha affinis Gilbert Muth 1979-7-31 11542 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC54746  Cryptantha leiocarpa Harley P. Chandler May 1901 1144 Humboldt Samoa North Coast Ranges, Humboldt Bay 3 Comment
  HSC55144  Cryptogramma acrostichoides G. L. Clifton, Griswold 1979-8-1 12045 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC440174  Cryptogramma acrostichoides Joseph P. Tracy 1919-9-23 5290 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  UC63992  Cupressus lawsoniana Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa (Redwood trail) 762 Comment
  CAS-BOT-BC224392  Cuscuta californica Joseph P. Tracy 1949-8-4 18407 Humboldt Trinity Summit. Mud Springs 1341 Comment
  UC922013  Cynodon dactylon Joseph P. Tracy 1949-8-18 16427 Humboldt Eureka 15 Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  CAS-BOT-BC114625  Cyperus eragrostis Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  HSC7284  Cyperus strigosus D. E. Anderson 1963-9-21 2839 Humboldt 0.5 mi E of Willow Creek Comment
  RSA0049663  Cytisus scoparius Dean Wm. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm (Larabee Valley quadrangle), vicinity of the road crossing of Knack Creek 341 Comment
  UCD105685  Cytisus scoparius R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC14664  Cytisus scoparius var. andreanus W. F. Nickel 1965-5-17 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot. Comment
  HSC58538  Dactylis glomerata Overton, Butler 1979-7-23 9462 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC75740  Dactylis glomerata Bill Copeland 1980-6-26 305 Humboldt Near Murphy Meadow 914 Comment
  CDA31640  Danthonia californica T. R. Haig 1960-6-19 Humboldt 2 miles south of Kneeland 0 Comment
  SEINET200656 Image available Danthonia californica Joseph P. Tracy, H. E. Parks 1931-5-31 9548 Humboldt Kneeland Prarie. 792 Comment
  UCD60501  Danthonia californica R. Tofsrud 1947-6-28 s.n. Humboldt Between Capetown and Ferndale. Comment
  UCD60699  Danthonia californica var. americana A. Murphy; R. Tofsrud 1947-5-20 31 Humboldt Baker Ranch, 10 mi. N of Bridgeville. Comment
  HSC20251  Darmera peltata C. F. Hudson 1964-5-7 6436 Humboldt 2 mi. up river from the mouth of Mad River, S bank 1 Comment
  UC183586  Darmera peltata Joseph P. Tracy 1913-6-11 4093 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC204116  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  UC154246  Daucus pusillus Joseph P. Tracy 1909-8-1 3057 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC249612  Daucus pusillus Joseph P. Tracy 1921-7-10 5845 Humboldt near ocean Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CHSC79694  Delairea odorata Gordon Leppig 2000-2-15 1284 Humboldt McKinleyville. School Road 1/2 mile west of Central Ave. UTM zone 10, 4532N, 406E. 30 Comment
  HSC90041  Delphinium decorum subsp. tracyi Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 60 Humboldt Titlow Rd. 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  HSC37654  Delphinium decorum subsp. tracyi Robert M. Specht, John Rehling 1976-4-25 395 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  CAS-BOT-BC10312  Delphinium hesperium Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1196314  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1934-7-6 13662 Humboldt Iaqua North Coast Ranges 609 Comment
  HSC25009  Delphinium nudicaule J. Sandborg, F. Sandborg May 1968 8 Humboldt Bluff Creek near Notice Creek 793 Comment
  CAS-BOT-BC121977  Delphinium trolliifolium Albert Michael Vollmer; L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec Comment
  UC1542893  Delphinium trolliifolium Harold E. Parks June 1930 1366 Humboldt near Rohnerville Comment
  HSC40248  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt 3 mi. W of Arcata. Comment
  CAS-BOT-BC194340  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon 6 Comment
  UC1103211  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1912-6-26 3708 Humboldt Rick's Prairie Eureka; Northern Coast Region, , Rick's Prairie 0 Comment
  UC34132  Deschampsia cespitosa subsp. beringensis Joseph Burtt Davy and Walter C. Blasdale Aug. 1899 6213 Humboldt Eureka Comment
Read comments
Sep 27 2007
  CAS-BOT-BC194295  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1904-7-31 2129 Humboldt Eureka 60 Comment
  UC1103212  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1912-7-21 3789 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC184183  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1912-7-14 3750 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  HSC76544  Deschampsia elongata Teresa Prendusi 1981-7-7 120 Humboldt Near Slate Creek Butte. 1158 Comment
  UC187265  Deschampsia elongata Joseph P. Tracy 1908-6 2710 Humboldt opposite Buck Mt. Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UC534987  Deschampsia elongata H. E. Parks May 1931 3646 a Humboldt Big Lagoon Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  UCD114654  Descurainia incisa subsp. incisa Joseph P. Tracy 1947-8-24 17921 Humboldt Trinity Summit, near Box Camp, along trail to Waterdog Lakes. 1676 Comment
  HSC55099  Dicentra formosa G. L. Clifton 1979-7-31 11813 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC34639  Dicentra formosa David M. Brazelton 1975-4-10 6 Humboldt 150 yards SW of junction of Fieldbrook Rd. and Evans Rd. Comment
  POM118618  Dicentra formosa subsp. formosa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC402414  Dicentra formosa subsp. formosa N. Wynne; M. Peckham; J. Bamesberger 1994-5-6 41 Humboldt Intersection of Hwy 299 and Redwood Valley Rd on south side of Hwy 299 609 Comment
  RSA168936  Dicentra formosa subsp. formosa Joseph P. Tracy 1950-6-8 18720 Humboldt Near Mountain Glen, 7 miles south of Ferndale, Bear River Ridge 610 Comment
  UCD95519  Dicentra formosa subsp. formosa P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  SEINET200955 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1942-6-15 17153 Humboldt Moist place on grassy bench 1/2 miles NE of Garberville 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
  HSC71113  Dichelostemma capitatum subsp. capitatum M. A. Baker 1980-5-23 1379 Humboldt Near Buck Mtn. 1524 Comment
  HSC44758  Dichelostemma congestum Maralyn O'Meara 1972-6-8 81 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC70662  Dichelostemma ida-maia Gail Newton 1980-7-14 1545 Humboldt Near Deadman Ridge 1097 Comment
  SEINET3885618  Dichelostemma ida-maia D. E. Bright 1962-6-12 285 Humboldt Roadside, along Highway #96, 2 miles northeast of Orleans.; 0 Comment
  UC1198179  Dichelostemma ida-maia Frank A. Graham 1935-7-27 Humboldt lower end Crogan Hole; Trinity Summit 1463 Comment
  HSC26885  Digitaria sanguinalis Brad Klipfel 1973-7-24 222 Humboldt Mad River flood plain, N end of Carson RR Bridge. Comment
  CHSC94932  Diplacus aurantiacus K. Lang; J. Lang 2005-3-16 49 Humboldt Trinidad, N. California coast. 51 Comment
  UC1409176  Dipsacus fullonum Robert F. Thorne and P. Everett 1965-8-9 35282 Humboldt 2.5 mi n Arcata Comment
  UC602572  Dipsacus sativus Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  UC535766  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  UC535741  Disporum smithii Eleanor Armstrong 1169 B Humboldt Richardson Grove Comment
  CDA18208  Distichlis spicata G. D. Barbe, T. C. Fuller 1974-6-17 1835 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC90915  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  SEINET199554 Image available Distichlis spicata Joseph P. Tracy 1923-1 6286 Humboldt Mouth of Davis Creek. Comment
  UC595125  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon 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
  HSC17876  Dodecatheon hendersonii J. Wendell Howe 1932-4-10 Humboldt Lord Ellis Rd. E of Korbel (20 mi. E) Comment
  HSC30147  Dodecatheon hendersonii A. M. Montalvo, J. D. Ackerman 1974-4-14 173 Humboldt Near Gray's Falls, Trinity River. Gray's Falls Campground Comment
  UC562464  Dodecatheon hendersonii Joseph P. Tracy 1927-4-2 7879 Humboldt facing South Fork of Eel River Northern Coast Ranges, fcg South Fork Eel River (Phillipsville) 121 Comment
  RSA32864  Downingia yina A. A. Heller 1923-7-8 13771 Humboldt Near Fortuna Comment
  RSA0011675  Drosera rotundifolia Norman Dennis 1965-6-30 140 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  UC183604  Drosera rotundifolia Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  CAS-BOT-BC159612  Drymocallis glandulosa var. glandulosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC102523  Drymocallis lactea var. austiniae M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1510 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC58089  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-1 11998 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS35200  Dryopteris arguta W. L. Jepson 1932-8-9 16542 Humboldt Deerfoot Glade Bull Creek 121 Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  SFV7745  Dysphania botrys T. Gordon, K. Kimbrough 1975-8-22 1225 Humboldt Eel River. 61 Comment
  CDA30189  Echinochloa crus-galli M. K. Beyers, I. Sheperdson 2009-9-13 239 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC100405  Echinospermum Carl C. Marshall Jun 1886 317 Humboldt Trail E of Hoopa. Comment
  CAS-BOT-BC113642  Eleocharis acicularis Doris K. Kildale 1931-5-16 s.n. Humboldt Snow Camp Comment
  UC1103668  Eleocharis bella Joseph P. Tracy 1927-8-7 8313 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  HSC39049  Eleocharis macrostachya Linda M. Barker 1976-6-22 1621 Humboldt 3 mi. W of Arcata Comment
  UC666873  Eleocharis macrostachya Joseph P. Tracy 1934-8-14 13570 Humboldt Alton 30 Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  CAS-BOT-BC113337  Eleocharis montevidensis Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  CHSC96444  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC7324  Eleocharis pachycarpa J. P. Tracy, H. E. Parks 1931-6-7 9569 Humboldt Trinidad 61 Comment
  UCD49814  Eleocharis pachycarpa S. Galen Smith; Malcolm A. Nobs 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon, Humboldt County. Comment
  HSC58629  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11482 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58674  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12153 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC68971  Elymus glaucus Jacqueline Greenleaf 1980-8-12 315 Humboldt Near Henry Ridge. 1128 Comment
  HSC71647  Elymus glaucus J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9927 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  RSA10016  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Comment
  SEINET4674729  Elymus hispidus Thomas Nelson, Jane Nelson 1976-7-26 3023 Humboldt Trinity-Humboldt Co. line.; 0 1615 Comment
  HSC9738  Elymus mollis subsp. mollis T. O. Preston 1963-5-6 21 Humboldt Sand dunes. Comment
  SJSU10755  Elymus mollis subsp. mollis H. T. Harvey 1977-7-5 595 Humboldt Elk River Spit, near Eureka, Humboldt Bay Comment
  RSA129486  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  UC526785  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCD62528  Elymus repens R. Tofsrud 1949-7-1 Humboldt Ferndale. Comment
  UCD62646  Elymus trachycaulus Thomas Nelson; Jane Nelson 1976-7-26 3023 Humboldt Trinity-Humboldt Co. line: Along 1S07 West of Black Lassic. 1615 Comment
  HSC16340  Epilobium brachycarpum D. E. Anderson 1961-9-23 1833 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC98656  Epilobium brachycarpum Cara Witte 2007-7-26 589 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UC144087  Epilobium brachycarpum Joseph P. Tracy 1900-9-9 946 Humboldt gravel bar on creek Northern Coast Region, Yager Creek (near Hydesville) 60 Comment
  UC583060  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt 15 mi e Bridgeville (roadside); Little Van Duzen River Comment
  RSA275298  Epilobium canum subsp. latifolium Thomas W. Nelson 1977-8-6 3722 Humboldt Lassics: serpentine ridge between Blanket Creek and Bear Creek just below Blanket Rock. Unsurveyed section east of T2S, R5E, Sec. 25 1494 Comment
  UC583074  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt roadside on Redwood Hwy 5 mi n Humboldt-Mendocino Co. line; South Fork Of Eel River Comment
  HSC27041  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-25 288 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC43235  Epilobium ciliatum subsp. ciliatum R. Sutherland 1976-8-19 3 .19876 Humboldt 259 Comment
  POM32458  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt North Coast Ranges: South Fork of Eel River 4 miles above the mouth 61 Comment
  RSA22708  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  SEINET9075566 Image available Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-1 35201 Humboldt Samoa Peninsula 0 Comment
  HSC55113  Epilobium glaberrimum G. L. Clifton 1979-7-31 11868 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC102624  Epilobium hallianum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1611 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA181876  Epilobium hallianum Joseph P. Tracy 1930-7-16 8977 Humboldt Northern Coast Ranges: South Fork Mountain; in wet meadow at McKay Camp 1677 Comment
  HSC73548  Epilobium minutum Gail Newton 1980-7-14 1473 Humboldt Near Last Chance Ridge 1219 Comment
  UC1198481  Epilobium minutum Joseph P. Tracy 1931-5-3 9353 Humboldt near Blue Lake; Northern Coast Region, Mad River 15 Comment
  RSA1439  Epilobium septentrionale E. R. Johnson 1929-08 1437 Humboldt Eel River. 91 Comment
  SEINET200606 Image available Equisetum hyemale J. P. Tracy 1926-9-6 7795 Humboldt Trinity River Valley near the S Fork 183 Comment
  HSC76320  Equisetum telmateia subsp. braunii Teresa Prendusi 1981-7-23 348 Humboldt Near Black Mtn. 890 Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  HSC886  Equisetum telmateia subsp. braunii Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  CAS-BOT-BC213558  Eragrostis hypnoides Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  HSC102576  Eremogone congesta var. subcongesta M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1563 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CHSC102880  Erica lusitanica Peter F. Zika 2008-10-19 24226 Humboldt North Coast. Thickets on w-facing banks above highway, E side of Route 101, near Exit 731 for Seawood Drive. 100 Comment
  HSC98529  Erigeron aliceae Cara Witte 2007-6-13 265 Humboldt Along Forest Service Rd. 5N04. Near Grouse Mountain 1538 Comment
  CAS-BOT-BC33468  Erigeron breweri var. klamathensis Joseph Prince Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole 1584 Comment
  CAS-BOT-BC214579  Erigeron philadelphicus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  UC175188  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1913-6-19 4212 Humboldt opposite, Dinsmore's Ranch Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1223010  Erigeron robustior Joseph P. Tracy 1942-7-4 17370 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  SEINET10866398  Eriogonum Mary Susan Taylor 1990-8-22 Taylor 6082 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC54867  Eriogonum compositum G. L. Clifton, Griswold 1979-7-25 10779 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA21010  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 8 Comment
  UCD100327  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC17297  Eriogonum latifolium P. W. Shields 1955-9-17 Humboldt 0.5 mi. S of Mad River Comment
  CAS-BOT-BC259286  Eriogonum lobbii Dave Imper 1985-7-30 s.n. Humboldt Six Rivers National Forest. N of Orleans Mountain 1737 Comment
  CAS-BOT-BC259533  Eriogonum luteolum var. luteolum L. R. Abrams 1916-7-11 6069 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC259534  Eriogonum luteolum var. luteolum Alice Eastwood 1921-7-21 10677 Humboldt Vanduzen [Van Duzen] River Comment
  HSC32167  Eriogonum nudum var. nudum J. O. Sawyer 1970-6-24 2243 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  POM165553  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  SD22498  Eriogonum nudum var. oblongifolium Susan G. Stokes 1932-7-12 Humboldt Near Garberville Comment
  CAS-BOT-BC269865  Eriogonum nudum var. pubiflorum J. H. Thomas 1949-6-13 926 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  HSC98923  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-3 404 Humboldt Along National Forest 1 on Kinsey Ridge. 1299 Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  RSA667295  Eriophyllum lanatum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6991 Humboldt North coast redwood area: CA-36, along the Van Duzen R. 19.6 miles E of US-101 (W of Bar W Road) 137 Comment
  CAS-BOT-BC301011  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1928-7-24 5277 Humboldt Horse Mountain 914 Comment
  HSC97922  Eriophyllum lanatum var. achilleoides Cara Witte 2007-6-19 299 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC673208  Eriophyllum lanatum var. achilleoides Lincoln Constance and Reed C. Rollins 1942-5-12 2886 Humboldt 6 mi ne Weitchpec; Klamath-Siskiyou Region, Mouth of Bluff Creek 152 Comment
  CAS-BOT-BC301388  Eriophyllum lanatum var. grandiflorum Harley P. Chandler 1901-6-1 1301 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  POM358035  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3578 Humboldt West side of road north from Alder Spring, head of North Fork of Conley Creek 1463 Comment
  HSC41264  Eriophyllum lanatum var. lanceolatum Brad Klipfel 1974-7-23 457 Humboldt Horse Mtn. Comment
  UC1718077  Eriophyllum lanatum var. lanceolatum John S. Mooring 1970-7-7 2497 Humboldt along and near hwy 96, 0.5 miles N of confluence of Slate Creek and Klamath River Comment
  HSC35083  Eriophyllum staechadifolium Rudolf W. Becking, Thomas Overturf 1974-9-1 Humboldt S of the mouth of the Mattole River Comment
  UC727166  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt between Little River and Trinidad Comment
Read comments
Sep 29 2006
  HSC8501  Erodium cicutarium Jack Rockwell 1962-4-29 66 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse 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
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  HSC77515  Erysimum concinnum May Bugbee 1984-6-14 Humboldt Mattole Beach, S of mouth of Mattole River Comment
  HSC26313  Erysimum menziesii Thomas W. Nelson 1971-4-16 383 Humboldt Near Samoa coast Guard Station. Comment
  UC10569  Erysimum menziesii J. P. Tracy 1901-4-17 Humboldt Humboldt Bay Comment
  HSC38519  Erythronium californicum D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  HSC65180  Erythronium californicum T. Jimerson, J. Pageau 1979-4-18 423 Humboldt Rd. 6N21 100 yds. S of its junction with Hwy. 299, E side of rd. Comment
  SEINET3886103  Erythronium californicum Eric May, Susan Carter 1987-3-29 115 Humboldt Gray Falls Campground; 10 mi E of Willow Creek on Hwy 299 along Trinity River. N end loop road in campground.; 0 244 Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  UC666962  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 Comment
  HSC70568  Erythronium grandiflorum subsp. grandiflorum M. A. Baker 1980-7-19 3038 Humboldt Near Bret Hole. 1814 Comment
  HSC104331  Erythronium oregonum James Regan, Humboldt Redwood Co., LLC 2007-5-3 21 Humboldt Long Ridge, near Taylor Peak, west of Scotia / Bear River 793 Comment
  RSA367654  Erythronium revolutum Thomas W. Nelson 1976-4-3 2283 Humboldt Hwy 36 at east end of Swains Flat. Comment
  HSC16757  Eschscholzia californica Francis Winter 1960-5-7 Humboldt 1 1/2 mi. S of Redwood Creek Ranch Comment
  UC1199357  Euchiton sphaericus Joseph P. Tracy 1938-6-20 15974 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC206923  Euonymus occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt Eureka, 3 miles SE of business district 91 Comment
  CAS-BOT-BC206924  Euonymus occidentalis Joseph P. Tracy; H. E. Parks 1925-6-14 7123 Humboldt Kneeland Paririe Road, along stream. 457 Comment
  UC1199326  Euthamia occidentalis Joseph P. Tracy 1939-9-24 16501 Humboldt near Blue Lake (along Mad River) 15 Comment
  HSC100109  Festuca arundinacea T. L. Ackerman 1964-5-15 48 Humboldt Dunes west from Fairhaven sign Comment
  HSC91888  Festuca arundinacea E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC73583  Festuca californica Gail Newton 1980-7-14 1491 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC282499  Festuca elmeri Joseph P. Tracy; H. E. Parks 1934-6-27 11045 Humboldt Horse Mountain 1524 Comment
  UC1565802  Festuca idahoensis R. Spellenberg 1990-7-10 10249 Humboldt 8 mi wsw Salyer (6 mi s of Berry Summit, on CA Hwy 299, on USFS 1, extreme e edge of Humboldt County) 1371 Comment
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  CAS-BOT-BC278808  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville Comment
  HSC31224  Festuca occidentalis D. E. Anderson 1972-6-20 5723 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC40969  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt 3 mi. W of Arcata Comment
  HSC58759  Festuca occidentalis Overton, Butler 1979-7-26 9993 Humboldt Near Willow Creek 1341 Comment
  HSC103065  Festuca rubra J. P. Smith 2014-6-4 13867 Humboldt Big Lagoon County Park 5 Comment
  HSC73769  Festuca rubra M. A. Baker 1980-6-7 1778 Humboldt Near Brush Mtn. 1128 Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  SEINET11683172  Festuca rubra K. S. Erdman 1970-1 4812 Humboldt Gold Bluff Beach about 3 mi NW of Berry Glen and US 101 (Redwood NP) Comment
  HSC58702  Festuca subulata Griswold, Butler 1979-7-11 7033 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC70481  Festuca subulata Gail Newton 1980-7-20 1632 Humboldt Near Bell Swamps 1426 Comment
  SEINET3827552 Image available Festuca subuliflora T. R. Van Devender, R. K. Van Devender 1990-1 90 -102 Humboldt Cal-Barrel Road in Redwood National Forest; dense old-growth redwood forest. Comment
  UC1145206  Festuca subuliflora Joseph P. Tracy 1948-6-13 18041 Humboldt 7 mi nw Blocksburg; Larrabee Creek 304 Comment
  UC682048  Festuca subuliflora G. L. Stebbins Jr. and G. L. Church 1941-5-27 3109 Humboldt Strong's Station, on Van Duzen River Van Duzen River Comment
  CHSC68501  Fragaria chiloensis Vernon H. Oswald 1997-4-10 8327 Humboldt Elk Head, north end of Trinidad State Beach. Near the bluffs overlooking the ocean. 30 Comment
  HSC23707  Fragaria vesca J. O. Sawyer 1970-6-27 2309 Humboldt Site 318. 1494 Comment
  JEPS44672  Fragaria vesca Joseph P. Tracy 1932-7-15 10578 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  SBBG28961  Frangula californica subsp. californica C. B. Wolf 1927-8-30 Humboldt 3 mi S of Thorn on the old coast rd Comment
  BLMAR113  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1995-1-19 113 Humboldt King range, growing in open clrng arng rd to new king range admin 283 Comment
  CAS-BOT-BC59963  Frangula purshiana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  HSC18415  Frangula purshiana G. B. Kendall 1965-5-8 7 Humboldt 1.0 mi S of Trinidad on Hwy. 101 Comment
  HSC18419  Frangula purshiana T. M. Mingo May 1965 Humboldt 2 mi N of Trinidad Comment
  SEINET200389  Frasera speciosa Joseph P. Tracy 1932-7-20 10731 Humboldt Trinity Summit , 1585 Comment
  HSC89632  Fraxinus latifolia Anthony J. Desch, Bryon Cariss 1988-4-23 65 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  HSC15541  Fritillaria affinis Elrid H. Spinas 1948-6-16 68 Humboldt Horse Mtn. Comment
  HSC79480  Fritillaria affinis Kenneth Clark 1980-3-27 561 Humboldt Upper alluvial terraces of S fork Dead Man's Gulch 76 Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  UC175284  Fritillaria affinis Joseph P. Tracy 1913-6-20 4228 Humboldt nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  CAS-BOT-BC124019  Fritillaria purdyi Carlton Elmer Purdy 1901-4-1 s.n. Humboldt Kneeland Comment
  CAS-BOT-BC130447  Fritillaria purdyi Doris K. Kildale 1928-5-19 5149 Humboldt Chalk Mountain Comment
  RSA46688  Fritillaria purdyi Doris K. Kildale 1938-6-5 15397 Humboldt Horse Mountain Comment
  CDA38142  Fuchsia magellanica G. D. Barbe, T. C. Fuller 1974-6-18 1872 Humboldt Loop trail above Fern Canyon, Prairie Creek Redwood State Park, 7.1 miles west of Highway 101 on Fern Canyon Road, 5 miles south of Klamath River. 0 Comment
  HSC8377  Fumaria officinalis Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  UCD121553  Galium ambiguum subsp. siskiyouense Frederic Hrusa 1993-6-17 11229 Humboldt Red Mountain. 1200 Comment
  POM338118  Galium californicum F. R. Fosberg 1948-8-28 30044 Humboldt Between Benbow and Garberville. Comment
  UC175682  Galium porrigens Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC98132  Galium triflorum Cara Witte 2007-6-27 374 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1/2 mile south of intersection with 5N04 and 4N32E. 1425 Comment
  UC204756  Gamochaeta ustulata Joseph P. Tracy 1918-7-5 5028 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC89610  Gamochaeta ustulata M. Roantree 1985-5-2 28 Humboldt SW side of Trinidad Head Comment
  UC302183  Gamochaeta ustulata Joseph P. Tracy 1926-5-2 7434 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC56997  Garrya buxifolia Overton, Butler 1979-7-24 9574 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC188530  Garrya elliptica Milo S. Baker 1927-8-16 2442 a Humboldt Samoa Comment
  CAS-BOT-BC188532  Garrya elliptica Doris K. Kildale 1926-9-12 2668 Humboldt Klamath River near Requa on trail between ferry and bridge Comment
  CAS-BOT-BC188546  Garrya elliptica Doris K. Kildale 1926-1-3 1464 Humboldt Big Lagoon road near Trinidad Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  UCD121163  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD66582  Gastridium phleoides P. B. Kennedy 1923-8-5 26 Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  HSC59858  Gaultheria ovatifolia M. A. Baker 1979-7-6 1011 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  UC562736  Gaultheria ovatifolia Joseph P. Tracy Jul 16 1930-Jul 19 1930 9022 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC902050  Gaultheria ovatifolia Joseph P. Tracy 1949-8-11 18456 Humboldt Snow Camp 1432 Comment
  CAS-BOT-BC58905  Gaultheria shallon Carl B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 miles south of Thorn 304 Comment
  CAS-BOT-BC58911  Gaultheria shallon L. R. Abrams 1916-7-11 6010 Humboldt Mouth of Grizzly Creek on Van Duzor River Comment
  SBBG22058  Gaultheria shallon R. F. Thorne 1957-9-2 Humboldt Eel River, Burlington State Park, just S of Weott Comment
  HSC76623  Gayophytum diffusum Denis Kearns 1981-7-22 317 Humboldt Near Whiteys Peak. 1487 Comment
  HSC55048  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-7-31 11551 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC55107  Gayophytum diffusum subsp. parviflorum G. L. Clifton 1979-7-31 11848 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC35398  Gayophytum diffusum subsp. parviflorum Chesnut and Drew Humboldt Comment
  UC20254  Gayophytum heterozygum Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  HSC40848  Gayophytum humile Thomas W. Nelson 1976-7-9 3002 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  HSC58834  Gayophytum racemosum Overton, Butler 1979-7-31 11406 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC16406  Gayophytum ramosissimum J. P. Tracy 1933-7-26 12919 Humboldt Grouse Mtn. 1524 Comment
  JEPS64791  Genista monspessulana W. L. Jepson 1936-8-11 17869 Humboldt Philipsville South Fork Eel River Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  SD42345  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon; south side along Redwood Highway. 6 Comment
  UC179966  Gentiana sceptrum Joseph P. Tracy 1914-9-6 4610 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC213322  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1198952  Geranium core-core Joseph P. Tracy 1909-5-23 2977 Humboldt Eureka Northern Coast Region 0 Comment
  HSC78962  Geranium dissectum L. P. Janeway, K. Berg 1984-4-11 723 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC8650  Geranium dissectum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  JEPS61433  Geranium molle W. L. Jepson 1902-6-25 1933 Humboldt Korbel to Angel's Ranch Comment
  UC164809  Geranium molle Joseph P. Tracy 1906-5-6 2436 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC23678  Gilia capitata Tim Baroni 1971-7-5 88 Humboldt 8 mi. E of Petrolia Comment
  UC1197929  Gilia capitata subsp. capitata Joseph P. Tracy 1908-6 2751 Humboldt nw slope of Buck Mountain , nw slope Buck Mountain (Northern Coast Ranges) 457 Comment
  CAS-BOT-BC226143  Gilia capitata subsp. pacifica Carl B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 1/2 mi. So. of Centerville 45 Comment
  RSA47173  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 s.n. Humboldt Cape Mendocino Comment
  RSA742109  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast: about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino. 30 Comment
  UCR202414  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast, about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino 30 Comment
  CAS-BOT-BC225476  Gilia millefoliata Lewis S. Rose; John Thomas Howell; Gordon H. True 1972-6-5 48816 Humboldt Samoa 3 Comment
  HSC16992  Gilia tricolor J. Wendell Howe 1932-4-18 Humboldt Bridgeville to Blocksburg Rd. Comment
  UC906683  Gilia tricolor subsp. tricolor Joseph P. Tracy 1943-5-9 17419 1/2 Humboldt at Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  HSC73141  Githopsis specularioides M. A. Baker 1980-5-18 1333 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC303706  Glebionis segetum Paul F. Covel 1939-8-7 1651 Humboldt Beach at Little River Comment
  HSC90248  Glehnia littoralis subsp. leiocarpa Jean Hanson 1980-5-24 63 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  RSA80349  Glehnia littoralis subsp. leiocarpa F. W. Peirson 1923-7-11 3946 Humboldt 18 miles north of Eureka Comment
  SJSU8439  Glehnia littoralis subsp. leiocarpa H. T. Harvey 1977-7-5 606 Humboldt Elk R Spit, Humboldt Bay Comment
  UC1541565  Glyceria elata Harold E. Parks Sep 1928 175 Humboldt Big Lagoon Comment
  UCD66776  Glyceria occidentalis A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3461 Humboldt Loleta Swamp, south of Eureka. Comment
  SEINET7292867 Image available Glyceria occidentalis Joseph P. Tracy 1942-1 17090 Humboldt Loleta Comment
  SEINET10591165  Glyceria striata Harley P. Chandler Chandler 1526 Humboldt Klamath River. 427 Comment
  POM257415  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-1 24026 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC302535  Gnaphalium palustre Doris K. Kildale 1925-8-17 1242 Humboldt Waterdog Lake, Trinity Summit 1828 Comment
  RSA249512  Gnaphalium palustre R. F. Thorne, Percy C. Everett 1965-8-7 35227 Humboldt Samoa Peninsula. 3 Comment
  HSC55216  Goodyera oblongifolia Walter Overton 1979-8-1 12373 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC36646  Goodyera oblongifolia J. D. Ackerman 1975-9-15 742 Humboldt Arcata, behind Fern Ln. E of Humboldt State University Comment
  CAS-BOT-BC304738  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1936-7-3 3781 Humboldt Eureka Comment
  CAS-BOT-BC304759  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Shelter Cove Comment
  CAS-BOT-BC304761  Grindelia hirsutula Carl B. Wolf 1927-8-29 1214 Humboldt Devil's Gate, south of Cape Mendocino Comment
  HSC2098  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  JEPS30544  Grindelia hirsutula Peter H. Raven, R. Snow 1958-7-21 13659 Humboldt Cape Mendocino Cape Mendocino (on exposed coastal bluffs) Comment
  RSA134602  Grindelia stricta var. stricta Percy C. Everett, E. K. Balls 1959-10-25 23967 Humboldt 6 miles NE of Eureka, U.S. Hwy101. Comment
  RSA34235  Grindelia stricta var. stricta C. B. Wolf 1927-8-28 1184 Humboldt Eureka Bay, on the road to Arcata. Comment
  SJSU8446  Grindelia stricta var. stricta H. T. Harvey 1977-7-5 600 Humboldt Elk R Spit, Humboldt Bay Comment
  HSC104080  Hackelia bella S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, off Rd. 1S11, above Mule Slide Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  POM161485  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit 1829 Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC93468  Helenium bolanderi Gordon Leppig 1998-8-23 1077 Humboldt Big Lagoon County Park 2 Comment
  CAS-BOT-BC309412  Helenium puberulum Alice Eastwood 1921-7-21 10666 Humboldt Vanduzen [Van Duzen] River Comment
  CAS-BOT-BC310075  Hemizonella minima Doris K. Kildale 1927-7-22 3910 Humboldt Lassecks Peaks - Coral Goat Camp 1661 Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC34997  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson 1975-5-24 1851 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1199373  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1921-6-12 5817 Humboldt Kneeland Prairie 762 Comment
  UC275451  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-8-23 7244 Humboldt Bridgeville, Degnan's Ranch, Laribee Creek 609 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  HSC74295  Heracleum maximum M. A. Baker 1980-7-22 3124 Humboldt Near Grogan Hole. 1676 Comment
  RSA246845  Heracleum maximum R. F. Thorne, P. Everett 1965-8-9 35327 Humboldt Clam Beach County Park: along highway. 3 Comment
  CAS-BOT-BC311057  Heterotheca oregona var. oregona Doris K. Kildale 1926-5-31 2025 Humboldt Miranda, on South Fork of Eel River Comment
  UC485473  Heterotheca oregona var. rudis unknown Humboldt Chandler, <rest illegible> Klamath River Comment
  HSC20194  Heuchera micrantha P. N. Slattery 1963-4-27 44 Humboldt Clam Beach Comment
  UC11356  Heuchera micrantha Bolander Aug 1867 6531 Humboldt e fork of Eel River (at Wood's Ranch) Comment
  HSC57892  Hieracium albiflorum Overton, Butler 1979-7-31 11464 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC1199467  Hieracium albiflorum Joseph P. Tracy 1933-7-25 12831 Humboldt Horse Mountain 1432 Comment
  POM289677  Hieracium albiflorum Lyman Benson 1928-7-12 485 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  POM360469  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower south slope of Mt. Lassic (Signal Peak). 1494 Comment
  UC1223077  Hieracium nudicaule Joseph P. Tracy 1949-8-11 18471 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek beginning at the place where the electric power line crosses); Kinsey Ridge 1280 Comment
  RSA604019  Hierochloe occidentalis R. R. Halse 1996-3-26 5020 Humboldt Redwood National Park; at junction of Bald Hills Road and Holter Ridge Bike Route, 11 mile SE of U.S. Hwy. 101. 708 Comment
  UCD150387  Hippuris vulgaris William Anderson 1965-6-26 s.n. Humboldt Mad River Slough. Comment
  CDA38204  Hippuris vulgaris E. C. Whitney 1962-7-23 s.n. Humboldt Pepperwood; R. Wallen property. 0 Comment
  HSC69757  Hippuris vulgaris Thomas W. Nelson 1977-9-22 3750 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  HSC5261  Holcus lanatus John Warner Hosking 1966-8-5 Humboldt Near BSA, Humboldt State College campus, Arcata. Comment
  RSA44462  Holcus lanatus Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  CAS-BOT-BC149909  Holodiscus discolor C. C. Harris; S. K. Harris 1936-6-9 329 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC40499  Holodiscus discolor Thomas W. Nelson, James Nelson 1976-7-26 3043 Humboldt E side of middle peak of Mount Lassic group, Signal Peak 1738 Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  POM148443  Holodiscus discolor J. B. Feudge 1923-7-16 279 Humboldt Fortuna. 23 Comment
  RSA449759  Holodiscus discolor Thekla Mohr 1918-07 3349 Humboldt Eel River. Comment
  RSA85262  Holodiscus discolor F. W. Peirson 1926-7-13 8655 Humboldt Near Blue Lake, Mad River. Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  UC154211  Holodiscus discolor Joseph P. Tracy 1901-7-31 1231 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  HSC75482  Hordeum brachyantherum J. O. Sawyer 1980-7-18 3629 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1103488  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-15 17126 Humboldt near Redcrest resort; Englewood 91 Comment
  CAS-BOT-BC536629  Horkelia californica Paul F. Covel 1937-7-13 800 Humboldt Cape Fortuna Comment
  UC1222320  Horkelia californica subsp. dissita Joseph P. Tracy 1950-7-6 19018 Humboldt 3 mi s Burr Valley (High meadow); Buck Mountain 1158 Comment
  CDA20012  Horkelia tridentata subsp. flavescens P. Haggard 2002-8-5 PDR P 070940 Humboldt Northwestern California; USFS property, vicinity of Blue Lake. 0 Comment
  HSC23680  Horkelia tridentata var. flavescens D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5054 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  HSC76241  Horkelia tridentata var. flavescens Denis Kearns 1981-6-24 9 Humboldt Near Cedar Camp 1219 Comment
  HSC96270  Horkelia tridentata var. flavescens Wanda Naylor, Laurel Goldsmith 2005-6-24 15 Humboldt S of Grouse Mountain on NF1 1595 Comment
  CAS-BOT-BC537894  Horkelia tridentata var. flavescens Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2613 Humboldt Larabee Valley, near Eureka 762 Comment
  HSC96954  Horkelia tridentata var. flavescens Ryoko Ito, Shauna McDonald 2007-6-11 3 Humboldt 11.9 mi. above Hwy. 299 1585 Comment
  UCSB3139  Hosackia gracilis Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. north of Trinidad Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  UC1239766  Hydrophyllum occidentale Joseph P. Tracy Jul 16 1930-Jul 19 1930 9085 Humboldt South Fork Mountain Northern Coast Ranges (near McKay Camp) 1676 Comment
  SBBG28785  Hydrophyllum occidentale L. Constance, A. A. Beetle, J. P. Tracy 1940-5-17 2618 Humboldt lower slopes of Buck Mtn near Eureka 792 Comment
  HSC58119  Hypericum anagalloides G. L. Clifton, Griswold 1979-8-1 12088 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  RSA12422  Hypericum androsaemum C. B. Wolf 1934-7-2 5874 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC668259  Hypericum perforatum Joseph P. Tracy 1937-4-3 15244 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC99557  Hypericum perforatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 222 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SDSU6917  Hypericum perforatum subsp. perforatum D. F. Harvey 1938-8-14 2337 Humboldt Trinity River. Comment
  HSC5867  Hypochaeris radicata R. C. Hoover 1965-5-13 39 Humboldt At the end of Murray Rd. about 1 1/2 mi. W of McKinleyville Comment
  UC166805  Hypochaeris radicata J. P. Tracy 1900-7-22 906 Humboldt immediate vicinity Eureka 0 Comment
  UC32896  Hypochaeris radicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5490 Humboldt near Camp Grant; North-Western California Comment
  CAS-BOT-BC311438  Hypochaeris radicata Doris K. Kildale 1928-6-24 7077 Humboldt Redwood Creek at Berry's 289 Comment
  SEINET10879099  Hypochaeris radicata Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 483 Humboldt Collected by Hwy. 101, N side of Orick. 30 Comment
  HSC96751  Iliamna latibracteata M. Mesler 2006-7-28 627 Humboldt NNE of Grouse Mtn., 1.1 mi. from NF 1. 1570 Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56224  Ipomopsis aggregata G. L. Clifton, Griswold 1979-8-2 12260 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA49981  Iris chrysophylla E. L. Nelson 1949-1 s.n. Humboldt Originally collected at Weitchpec, CA on hot dry open slopes along road. Comment
  UCR275116  Iris douglasiana Charity A. Hartshorn 2016-5-14 30 Humboldt Arcata Community Forest 244 Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  RSA135936  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17192 Humboldt 3.2 miles northeast from Harris on road from Zenia and Alder-point to Garberville Comment
  UC429165  Iris purdyi P. E. Goddard 1906-6 644 Humboldt above Bells (Eel River); Eel River Comment
  CAS-BOT-BC240325  Iris tenax subsp. klamathensis Dana York 2011-5-31 3021 Humboldt Six Rivers National Forest, Ca. 1.1 km S-SE of Somes Bar Post Office, on the slope E and above Hwy. 96 adjacent to a large landslide that occurred in 2010 Comment
  HSC45310  Iris tenax subsp. klamathensis R. York 1978-5-11 166 Humboldt Along logging road 4.5 mi. from Orleans 640 Comment
  RSA135919  Iris tenuissima Lee W. Lenz, E. K. Balls 1956-6-12 21664 Humboldt 9.1 miles northeast from Blue Lake, U.S. Highway 299 488 Comment
  RSA136529  Iris tenuissima Lee W. Lenz 1953-5-12 18295 Humboldt 2 miles west Humboldt County line, Highway 299 180 Comment
  HSC6800  Isatis tinctoria D. E. Anderson 1965-5-1 3569 Humboldt Slides along Hwy. 96 and Klamath River, 3-4 mi. E of Weitchpec Comment
  RSA273404  Isatis tinctoria J. P. Smith, J. O. Sawyer 1974-6-2 7649 Humboldt Below Berry Summit on old State Route 299. 762 Comment
  JEPS60150  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold Springs Grouse Mt; Grouse Mt., Cold Springs 1432 Comment
  JEPS93173  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 Comment
  HSC91621  Isolepis setacea E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC87619  Ixia maculata Jana Kattenhorn 1971-5-26 258 Humboldt HSU campus Comment
  HSC5883  Jaumea carnosa D. E. Anderson 1961-9-22 1830 Humboldt Along bank of road over Mad River slough 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
  UC184199  Juncus ambiguus Joseph P. Tracy 1912-6-16 3699 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region, , Hookton 0 Comment
  CHSC105448  Juncus balticus subsp. ater Peter F. Zika 2008-11-3 24274 Humboldt North Coast. Mouth of Elk River NE of Route 101 bridge, 2 air km S of Eureka. 2 Comment
  HSC34705  Juncus bolanderi Thomas W. Nelson 1974-7-20 1699 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA246770  Juncus bolanderi Robert F. Thorne, Percy C. Everett 1965-8-7 35176 Humboldt Big Lagoon. 2 Comment
  HSC13997  Juncus bufonius Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  HSC39770  Juncus bufonius Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  UC184195  Juncus bufonius Joseph P. Tracy 1914-7-5 4573 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC963870  Juncus bufonius H. E. Parks and S. T. Parks 1943-7-1 24254 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC89596  Juncus bufonius var. bufonius M. Roantree 1985-5-2 31 Humboldt E side of Trinidad Head. Comment
  UC552257  Juncus bufonius var. occidentalis Harold E. Parks and Joseph P. Tracy 1935-6-16 11273 Humboldt lower nw slopes Buck Mt. 792 Comment
  UC1152108  Juncus covillei Joseph P. Tracy 1930-6-29 8818 Humboldt near Dinsmore's; Buck Mountain Comment
  UC201385  Juncus covillei var. obtusatus Joseph P. Tracy 1918-7-5 5007 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC14012  Juncus effusus subsp. pacificus W. R. Brigham 1962-5-19 24 Humboldt S of Big Lagoon. Comment
  JEPS63830  Juncus effusus subsp. pacificus Lincoln Constance 1934-6-25 924 Humboldt 4 mi n Dyerville (and of n boundary of Humbolt Redwood Park, on Redwood Highway); South Fork Eel River, Bull Creek Region, Englewood Comment
  UCD141534  Juncus ensifolius Malcolm A. Nobs; S. Galen Smith 1949-8-3 1199 Humboldt Southern outskirts of Eureka. Comment
  UC1152096  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt about 1 mi n Murphy Meadow (e of Korbel); Bald Mountain Comment
  UCD141540  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt Bald Mountain; east of Korbel. About a mile north of Murphy meadow. Comment
  SD51260  Juncus ensifolius var. ensifolius Darley F. Howe 1961-8-1 Humboldt 9 Miles north of Arcata on #101. Comment
  HSC14030  Juncus lescurii David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UCSC000129  Juncus lescurii H. S. Yates 1936-6-16 5655 Humboldt 0.5 miles S.W. of Samoa - Eureka 3 Comment
  UC1152001  Juncus occidentalis Joseph P. Tracy 1937-8-3 15609 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC1152002  Juncus occidentalis Joseph P. Tracy 1930-7-6 8844 Humboldt Kneeland Prairie 762 Comment
  JEPS67092  Juncus occidentalis Joseph P. Tracy 1926-7-5 7724 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 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
  UC566682  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt near Garberville; East Fork of the Eel River Comment
  HSC56112  Kelloggia galioides G. L. Clifton 1979-7-31 11876 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC902208  Kickxia elatine Joseph P. Tracy 1946-8-25 17648 Humboldt near mouth of Van Duzen River; Eel River 15 Comment
  HSC61761  Kickxia elatine Ruby Van Deventer 1963-7-14 Humboldt Along the Klamath River at Pecwan Comment
  HSC95250  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Humboldt Marsh and Wildlife Refuge, SE corner of Klopp Lake Dike 1 Comment
  JEPS7507  Kyhosia bolanderi Joseph P. Tracy 1935-7-23 14136 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC340409  Lactuca biennis Henry M. Pollard 1947-8-21 s.n. Humboldt Near Ferrian Ranch, Orleans region Comment
  CAS-BOT-BC340427  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt Eel River, Alton to Fortuna 15 Comment
  HSC95607  Lamiastrum galeobdolon Gordon Leppig, Kai Neander 2000-4-13 1292 Humboldt Arcata Community Forest, 100 m S of trail 5 & 10 intersection 91 Comment
  HSC77913  Landoltia punctata Daniel V. Richards 1980-5-25 101 Humboldt N Clam Beach Pond, E side of Hwy. 101, near Cranell exit. Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  POM72742  Lathyrus littoralis P. A. Munz 1925-6-21 9892 Humboldt Clam Beach, 14 miles N of Eureka. Comment
  RSA246791  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35310 Humboldt Big Lagoon 3 Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  RSA246792  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35221 Humboldt Samoa Peninsula. 3 Comment
  HSC71466  Lathyrus nevadensis var. nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6701 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  UC709416  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1935-7-25 14247 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC95147  Lathyrus palustris Gordon Leppig 2003-7-18 2008 Humboldt Eureka, Marsh N of Elk River Slough 2 Comment
  UC303183  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  UCSC000375  Lathyrus vestitus subsp. bolanderi Charisse Bickford 1978-8-14 s.n. Humboldt Eureka, Korbel Comment
  CAS-BOT-BC326000  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata. Comment
  HSC104093  Layia carnosa Kyle Brown Apr 2015 33 Humboldt Ma-le'l Dunes; ~.25 mi. NW of parking lot 3 Comment
  HSC5915  Layia carnosa J. R. Woodside 1963-4-3 38 Humboldt 1.25 mi. N of Fairhaven. Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UC1101319  Lemna turionifera Malcolm A. Nobs, S. Galen Smith 1949-8-9 1225 Humboldt 1 mi n of Arcata (at junction of Highways 101 and 299, Mad River Valley); Mad River Valley Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  HSC67446  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4959 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1225755  Lepidium nitidum Joseph P. Tracy 1948-5-31 18012 Humboldt Alder Point 304 Comment
  HSC17097  Leptosiphon androsaceus William J. Ferlatte, B. D. Rogers 1966-6-15 2104 Humboldt Larabee Valley 762 Comment
  HSC22865  Leptosiphon androsaceus D. E. Anderson 1965-5-8 3636 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  HSC5361  Leucanthemum vulgare R. Spellenberg 1964-6-15 411 Humboldt Near Humboldt Bay on the S side of Arcata. Comment
  HSC55095  Lewisia leeana G. L. Clifton, Griswold 1979-7-31 11799 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC48837  Lewisia nevadensis Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 28 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC526793  Leymus X vancouverensis Joseph P. Tracy 1927-6-26 8214 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  RSA129556  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt Near mouth of Little River 5 Comment
  SEINET200641 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka. Comment
  UC573707  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt near mouth of Little River; Eureka Quadrangle 4 Comment
  POM160825A  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad 61 Comment
  UC1222811  Ligusticum apiifolium Joseph P. Tracy 1950-7-31 19238 Humboldt Grouse Mt. 1524 Comment
  UC1222812  Ligusticum apiifolium Joseph P. Tracy 1950-9-10 19354 Humboldt Bear R. Ridge 609 Comment
  HSC44546  Ligusticum californicum Brad Klipfel 1973-7-15 165 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC642267  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  HSC21520  Lilaeopsis occidentalis R. W. Spjut 1968-10-26 215 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC21519  Lilaeopsis occidentalis Jerry Parker 1968-10-26 211 Humboldt Big Lagoon shoreline, near Sphagnum Bog outlet Comment
  UC205462  Lilaeopsis occidentalis Joseph P. Tracy 1920-8-29 5391 Humboldt mouth of Little R.; Northern Coast Ranges 6 Comment
  HSC57912  Lilium kelleyanum Gilbert Muth 1979-7-31 11521 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  CAS-BOT-BC130641  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  HSC33664  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  UC673408  Lilium occidentale Herbert L. Mason 1932-7-21 7106 Humboldt Trinidad Head Comment
  UC1198233  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 A Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC303044  Lilium pardalinum Joseph P. Tracy 1926-6-27 7668 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  HSC63836  Lilium pardalinum subsp. pardalinum M. A. Baker 1979-6-29 951 Humboldt 900 Comment
  CAS-BOT-BC132969  Lilium rubescens Ella Dales Cantelow 1939-6-4 2443 Humboldt 6 1/10 mi. s. of Bridgeville on road from Alder Point Comment
  JEPS19583  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  JEPS19585  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC71066  Limnanthes douglasii subsp. nivea Thomas W. Nelson, Jane P. Nelson 1977-5-30 3399 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  POM254102  Limonium californicum C. C. Harris, S. K. Harris 1939-9-8 973 Humboldt South shore of Humboldt Bay. Comment
  UC146167  Linanthus androsaceus J. P. Tracy 1908-6-7 2606 Humboldt mouth of Maple Creek Mad River, Maple Creek 152 Comment
  UC1198570  Linanthus bicolor Joseph P. Tracy 1908-6-7 2616 Humboldt Butler Valley North Coast Ranges 152 Comment
  UC582685  Linanthus bicolor Joseph P. Tracy 1937-5-17 15287 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC240376  Linnaea borealis subsp. longiflora Volney Rattan 1878-1-1 s.n. Humboldt Near head of Willow Creek Comment
  CAS-BOT-BC416392  Linnaea borealis subsp. longiflora H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC39788  Linum bienne Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC7384  Lipocarpha occidentalis J. P. Tracy 1931-9-7 9650 Humboldt Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC136462  Listera cordata Doris K. Kildale 1926-3-21 1592 Humboldt Field redacted by CAS, contact the data manager for more information 609 Comment
  UC303141  Listera cordata Joseph P. Tracy 1925-4-5 6956 Humboldt Kneeland Road crossing Northern Coast Ranges, Lawrence Creek 609 Comment
  HSC104405  Listera cordata Arthur C. Grupe 2013-4-20 11 Humboldt Near Lord Ellis Summit; along Snow Camp Rd., ~500 ft. SE of its junction with Old Hwy. 200 701 Comment
  HSC16643  Listera cordata var. nephrophylla J. F. Knezevich 1968-5-21 449 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  JEPS81106  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson and Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland; e side of junction of Kneeland and Maple Creek roads 670 Comment
  RSA174011  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19004 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  RSA293190  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Kneeland & Maple Creek roads. 671 Comment
  UC1196485  Lithophragma affine Joseph P. Tracy 1913-6-14 4118 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1196490  Lithophragma affine Joseph P. Tracy 1941-3-26 16819 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC32287  Lithophragma campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5633 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC342349  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC42239  Lolium perenne W. F. Nickel 1965-5-13 Humboldt On W side of College Elementary School on Humboldt State College Campus. Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UC726366  Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt near Arcata; near Arcata Comment
  HSC55320  Lomatium macrocarpum Terry Griswold, Butler 1979-7-10 7117 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC74396  Lomatium macrocarpum Gail Newton 1980-6-28 720 Humboldt Near Mad River Butte. 1536 Comment
  RSA43875  Lomatium macrocarpum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  CDA38337  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. Comment
  UC249606  Lomatium nudicaule Joseph P. Tracy 1922-4-30 6023 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 Comment
  HSC97458  Lomatium nudicaule Cara Witte 2007-5-29 125 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1438147  Lomatium tracyi Barbara Kelly 1978-5-1 591 Humboldt 1/4 mi. from Horse Mt. Rd., 1/2 mi. below turnoff to summit, near end of unused gravel rd. Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  HSC32228  Lomatium triternatum var. triternatum J. O. Sawyer 1970-6-24 2227 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC60069  Lomatium utriculatum M. A. Baker 1978-5-6 461 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  POM161636  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt Brannan Mountain; viz. ridge north of Willow Creek, between Willow and Campbell creeks; North Coast Ranges. Comment
  HSC58307  Lonicera conjugialis Overton, Butler 1979-8-2 12589 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC240471  Lonicera hispidula Alice Eastwood; John Thomas Howell 1937-6-22 4733 Humboldt Near Alder Point Comment
  POM92405  Lonicera involucrata L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay. Comment
  CAS-BOT-BC241489  Lonicera involucrata var. ledebourii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC81932  Lotus aboriginus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4961 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  RSA406778  Lotus corniculatus J. P. Smith, T. W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just east of the drag strip. Comment
  POM18325  Lotus formosissimus W. C. Blasdale 1896-5-31 7471 Humboldt Eureka Comment
  UC726015  Lotus formosissimus A. A. Heller 1937-6-8 15895 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  UC169043  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1912-7-31 3902 Humboldt sw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC15500  Lotus purshianus var. purshianus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5613 Humboldt Bald Mt. Comment
  UC170028  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3964 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC201389  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  UC1223420  Lotus purshianus var. purshianus Joseph P. Tracy 1933-8-30 13021 Humboldt Titlow Mountain Grouse Mountain 1524 Comment
  CAS-BOT-BC342557  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Northern Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC342558  Luina hypoleuca Carl B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 mi. above Orleans Comment
  UC584132  Lupinus David D. Keck and J. Clausen 1935-6-16 3392 Humboldt mouth of Little River Comment
  JEPS85687  Lupinus albicaulis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8954 Humboldt near Blake lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  SEINET202281  Lupinus albicaulis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp. 1402 Comment
  HSC44522  Lupinus andersonii Brad Klipfel 1973-7-1 129 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC14776  Lupinus arboreus S. J. Hawks 1965-5-18 84 Humboldt W of Arcata Airport. Comment
  SD81280  Lupinus arboreus Darley F. Howe 1969-5-30 4586 Humboldt 2.4 miles south of Orick on Hwy 101, fresh-water lagoon Comment
  UC1223260  Lupinus arboreus Joseph P. Tracy 1934-7-21 13482 Humboldt Samoa Sand Dunes Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  RSA407035  Lupinus arboreus var. arboreus M. B. Dunkle 1936-8-18 4820 Humboldt Moonstone Beach. Comment
  POM349994  Lupinus benthamii var. benthamii Vera Townsend 1934-3-24 s.n. Humboldt Near Sequoia Comment
  UC659303  Lupinus elmeri Charles Piper Smith 1929-7-12 4406 Humboldt So<uth> Fork Mtn. Blake Lookout, South Fork Mtn.; Trinity N.F., So<uth> Fork Mountain Comment
  POM276514  Lupinus latifolius subsp. latifolius Lyman D. Benson 1929-7-19 1867 Humboldt Road to Matole River above Bull Creek. Comment
  HSC63291  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 936 Humboldt Drainage E of Oregon Creek. Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  UCD107971  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS79930  Lupinus littoralis Joseph P. Tracy 1917-5-26 4785 A Humboldt Bucksport Bluff Northern Coast Ranges, Bucksport Bluff (at Eureka) 0 Comment
  SEINET6932723 Image available Lupinus polycarpus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  RSA413832  Lupinus polyphyllus var. grandifolius Carl B. Wolf 1937-8-11 2906 Humboldt 1/2 mile east of Alton. 21 Comment
  BLMAR802  Lupinus rivularis Madeleine Hassett 2017-6-5 802 Humboldt Lost Coast Headlands, Along Guthrie Creek trail 121 Comment
  HSC36275  Lupinus rivularis John Rehling 1974-7-12 12 Humboldt Near the Bald Hills Rd., 3.5 mi. E of Hwy. 101 Comment
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  RSA414240  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-4 3583 Humboldt Along west side of road north from Alder Springs. 1524 Comment
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  HSC70758  Luzula comosa R. York 1980-5-17 525 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC436736  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  JEPS67158  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt Near Ruby Creek, Willow Creek Canyon, Northern Coast Ranges, 609 Comment
  UC249749  Luzula macrantha Joseph P. Tracy 1923-6-3 6257 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  UC302166  Luzula parviflora Joseph P. Tracy 1925-7-5 7171 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  UC34916  Lysichiton americanus W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  UCD138081  Lysichiton americanus P. B. Kennedy 1926-3-17 s.n. Humboldt on Highway 5 miles south of Eureka. Comment
  HSC59458  Lythrum hyssopifolia M. A. Erickson 1979-5-18 299 Humboldt On railroad right-of-way 25 yards N of Arcata Redwood Company main gate located between Arcata and Eureka. Comment
  RSA0015871  Lythrum hyssopifolia I. L. Wiggins 1932-7-19 5889 Humboldt Near Clam Beach, about 8 mi. N of Arcata. Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  CAS-BOT-BC334475  Madia Robert F. Thorne; P. Everett 1965-8-7 35216 b Humboldt Samoa Peninsula, elev near sea level. 0 Comment
  RSA94392  Madia anomala F. W. Peirson 1926-7-14 7067 Humboldt Redwood Camp, Lower Eel River Comment
  CAS-BOT-BC342808  Madia elegans L. R. Abrams 1918-6-15 7120 Humboldt Brannan Mt near Willow Creek 1371 Comment
  CAS-BOT-BC342807  Madia elegans Lincoln Constance; Reed C. Rollins 1942-5-11 2874 Humboldt California North Coast Ranges. Hoopa Valley 5 miles south of Hoopa 121 Comment
  CAS-BOT-BC343030  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi. S.E. of Petrolia; halfway between upper Mattole and Honeydew, Mattole River 121 Comment
  JEPS40364  Madia gracilis Lincoln Constance 1934-5-29 728 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC166273  Madia gracilis Joseph P. Tracy 1901-7-31 1236 Humboldt near Hydesville 60 Comment
  UC495632  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Praire; Trinity Summit, Klammath Mountains 1524 Comment
  CAS-BOT-BC343587  Madia sativa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1199397  Madia sativa J. P. Tracy 1903-8-9 1940 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC343588  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt Northern Coast Ranges. Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  RSA134601  Mahonia nervosa P. C. Everett, E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi. ne. from Blue Lake, U.S. Hwy 299, Arcata to Willow Creek. 274 Comment
  HSC15595  Maianthemum dilatatum A. E. Inman 1962-5-25 Humboldt S bank of Mad River, 50 yds W of Hwy. 299 bridge Comment
  CAS-BOT-BC508502  Maianthemum dilatatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port 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
  RSA376906  Maianthemum dilatatum Bonnie C. Templeton 1964-6-13 10182 Humboldt Along old 101 Highway to Trinidad Comment
  UCSB27865  Maianthemum racemosum Phelps, M. 1972-3-19 Humboldt 1.5 miles from Barberville along Old Briceland Rd., 0.5 miles north of roadside. 213 Comment
  HSC15642  Maianthemum racemosum subsp. amplexicaule Paul Shields May 1955 Humboldt 7 mi. W of Hoopa Comment
  HSC15650  Maianthemum racemosum subsp. amplexicaule V. G. Vieira 1963-5-2 47 Humboldt Butler Valley Ranch Comment
  HSC101981  Maianthemum stellatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 878 Humboldt Patterson Meadows 1566 Comment
  BLMAR283  Maianthemum stellatum Jennifer Anthony-Wheeler 1999-4-28 283 Humboldt King range Comment
  POM187937  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata. Comment
  CAS-BOT-BC347408  Malacothrix floccifera Don Hagar 1957-6-25 89 a Humboldt Brush Mountain, 3.5 miles south-southwest of Willow Creek 792 Comment
  UC1198759  Malus fusca J. P. Tracy 1901-5-12 1090 Humboldt immediate vicinity Eureka 0 Comment
  UC1198760  Malus fusca J. P. Tracy 1899-5-14 102 Humboldt Eureka 0 Comment
  UC154239  Malus fusca J. P. Tracy 1909-5-2 2954 Humboldt immediate vicinity Eureka 0 Comment
  UC1197978  Malva neglecta Joseph P. Tracy 1912-7-26 3876 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC15993  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  HSC73934  Marah oregana Gail Newton 1980-6-28 683 Humboldt Near Mad River Butte. 1536 Comment
  HSC73463  Marah oregana Grunert 37 Humboldt Jolly Giant Creek, Arcata city limit, on Jolly Giant Rd. near HSU Comment
  RSA273320  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  HSC6013  Matricaria discoidea V. G. Vieira 1963-5-2 40 Humboldt Butler Valley Ranch Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC14973  Medicago polymorpha W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  UC1145134  Melica aristata Joseph P. Tracy 1949-7-19 18374 Humboldt Friday Camp Grouse Mountain (Grouse Mountain) 1219 Comment
  UC526915  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC526920  Melica geyeri Joseph P. Tracy 1926-6-20 7650 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  CAS-BOT-BC281321  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  UCD87544  Melica harfordii A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  CAS-BOT-BC262467  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt North Coast Ranges. Dobbyn Creek 152 Comment
  CAS-BOT-BC262468  Melica subulata Harley P. Chandler 1901-5-1 1174 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  UC526919  Melica subulata Joseph P. Tracy 1933-5-28 12416 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC552706  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  UCD88639  Melica subulata A. H. Murphy 1950-1 s.n. Humboldt E. M. Cottrell Ranch. Comment
  UCD88684  Melica subulata H. S. Yates 1936-6-23 5878 Humboldt 4 miles NNE of Cathey's Peak. Comment
  HSC104095  Melilotus albus Monica Rodriguez, William A. Worley 2015-3-21 23 Humboldt Along South Fork Rd, 8.6 mi. from 199 Redwood Hwy. Comment
  RSA293200  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell.. Comment
  JEPS63455  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  HSC59  Mentha pulegium J. Wendell Howe 1931-6-19 Humboldt Redway Comment
  HSC15863  Mentzelia dispersa W. K. Parks Jul 1933 1420 Humboldt On Buck Mtn. Comment
  UC1198475  Mentzelia dispersa Joseph P. Tracy 1937-6-27 15384 Humboldt between Grouse Mt.and South Fork of Trinity River; Friday Ridge 1219 Comment
  UC1198473  Mentzelia laevicaulis var. laevicaulis Joseph P. Tracy 1911-7-10 3501 Humboldt near: along Willow Creek mouth,Tributary of Trinity River; Northern Coast Ranges 152 Comment
  CAS-BOT-BC428985  Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  SEINET198985  Micropus californicus var. californicus S. K. Harris, JP Tracy 1942-6-15 sn Humboldt Harris Road 1 mi E of Garberville Comment
  UC180181  Microseris borealis Joseph P. Tracy 1914-9-6 4611 Humboldt peat bog near Seidell Ranch (between High Prairie and Snow Camp); Northern Coast Ranges, Bald Mountain 1219 Comment
  JEPS13224  Microseris laciniata subsp. leptosepala W. L. Jepson 1902-6 1942 Humboldt Redwood Creek, Green Point Ranch Comment
  UC1196833  Mimulus arvensis Joseph P. Tracy 1925-5-25 13897 Humboldt Dobbyn Creek 152 Comment
  UC147924  Mimulus arvensis Joseph P. Tracy 1909-6-20 3000 Humboldt Freshwater Creek Northern Coast Region, Humboldt Bay region 0 Comment
  RSA135338  Mimulus dentatus Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  UC535748  Mimulus dentatus Eleanor Armstrong 1934-7-4 1165 Humboldt Richardson Grove 121 Comment
  UC1196774  Mimulus dentatus J. P. Tracy 1901-6-10 1126 Humboldt Forest Park Eureka 0 Comment
  UC169014  Mimulus floribundus Harley P. Chandler June, 1901 1481 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 304 Comment
  UC1196835  Mimulus grandis Joseph P. Tracy 1914-5-30 4483 Humboldt near Hydesville; Northern Coast Ranges 60 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
  HSC76255  Mimulus guttatus Denis Kearns 1981-7-23 403 Humboldt Near Whiteys Peak. 1524 Comment
  CDA41787  Mimulus guttatus E. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  RSA60480  Mimulus guttatus John H. Thomas 1949-6-12 896 Humboldt Along road between Orick and Martin's Ferry. 15.5 miles west of Martin's Ferry. 762 Comment
  UC175794  Mimulus guttatus Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  HSC56067  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11733 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS10599  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively 60 Comment
  HSC73738  Mimulus primuloides var. primuloides M. A. Baker 1980-7-22 3091 Humboldt Near Grogan Hole. 1676 Comment
  HSC48677  Mimulus tilingii Brad Klipfel 1973-7-31 252 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CAS-BOT-BC388626  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  HSC4054  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC38489  Mitella caulescens D. E. Anderson, J. P. Smith 1971-6-18 - 1098 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  HSC99492  Mitella caulescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 152 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
  HSC41843  Mitella ovalis N. G. Sugihara 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC154084  Mitella ovalis J. P. Tracy 1901-6-10 1133 Humboldt Immediate vicinity of Eureka 0 Comment
  BLMAR365  Modiola caroliniana Clara Sander 2003-6-3 365 Humboldt King range, Mattole campground roadside 9 Comment
  HSC48742  Moehringia macrophylla Brad Klipfel 1973-6-10 67 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  JEPS63389  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near Camp McKay. Northern Coast Ranges 1676 Comment
  RSA33443  Monardella odoratissima subsp. pallida Carl B. Wolf 1937-8-13 9269 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  CAS-BOT-BC220258  Monardella sheltonii L. R. Abrams 1918-6-16 7183 Humboldt Willow Creek Comment
  RSA257008  Moneses uniflora Gary D. Wallace, S. Carlquist, G. Ansley Wallace 1972-6-30 1103 Humboldt Prairie Creek Redwoods St. Pk. near park Hq. Comment
  UC229834  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River (Phillipsville Flat); Northern Coast Ranges, , Phillipsville Flat 91 Comment
  HSC97935  Montia linearis Cara Witte 2007-5-21 63 Humboldt White Oak Opening. 1257 Comment
  UC83800  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  RSA183637  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 miles S of Bridgeville, Comment
  HSC16103  Morella californica J. W. Johnson 1961-11-27 1431 Humboldt Woods along the trail of the Hunt Farm, Samoa Comment
  SEINET200834 Image available Muhlenbergia filiformis Doris Kildale Humboldt Trinity Summit. 1524 Comment
  UCD86610  Muhlenbergia filiformis Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west of the Trinity Summit area. 1645 Comment
  UCD86799  Muhlenbergia mexicana P. B. Kennedy 1923-8-5 s.n. Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  SEINET7294630 Image available Muhlenbergia mexicana var. filiformis Joseph P. Tracy 1916-1 4774 Humboldt South fork of Eel River, 4 miles above the mouth 61 Comment
  UCR275121  Myosotis laxa Charity A. Hartshorn 2016-5-14 27 Humboldt Arcata Community Forest 244 Comment
  HSC12417  Myosotis sylvatica D. Santana 1970-11-15 115 Humboldt Near Fickle Hill Rd. and 7th St. Comment
  HSC77907  Myosurus minimus L. P. Janeway, Paul Wilson 1984-5-25 822 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  SEINET516272  Myrica californica Vernon H. Oswald 1998-4-16 8913 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC13467  Myriophyllum aquaticum Anonymous 1957-5-12 148 Humboldt 1.5 mi. S of Fields Landing Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  HSC13475  Myriophyllum sibiricum R. L. Jarvis 1962-4-29 24 Humboldt Clam Beach Lagoons, .5 mi. S of Little River on Hwy. 101 0 Comment
  RSA256481  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt South Fork Mountain; in wet meadow at McKay Camp 1677 Comment
  SEINET3992074  Narthecium californicum Unknown 1930-7-17 9003 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  UC1173634  Narthecium californicum Joseph P. Tracy 1934-8-29 13629 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  UC1056359  Nassella lepida J. I. Mallory 1956-4-27 128 Humboldt three mi w Petrolia; Quad 28-B-4, Humboldt base 76 Comment
  UCD87899  Nassella lepida A. H. Murphy 1951-5-18 43 Humboldt along road, 2.5 mi. northwest of Petrolia. Comment
  UC181244  Nassella pulchra Joseph P. Tracy 1914-5-14 4448 Humboldt Fort Seward Northern Coast Ranges (slopes) 121 Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  UC907810  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek Schoolhouse Trinity River Valley, Willow Creek 152 Comment
  RSA43882  Navarretia intertexta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  JEPS70349  Navarretia intertexta Milo S. Baker 1923-7-19 26 Humboldt Wilders (= Carlotta) Wilders Comment
  UC52743  Navarretia linearifolia subsp. pinnatisecta Chestnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  BLMAR163  Navarretia mellita Donald Hazlett 1994-6-7 163 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  POM65883  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point, Northern Coast Ranges 152 Comment
  SEINET202730  Navarretia pubescens Joseph P. Tracy 1950-6-23 18861 Humboldt Dobbyn Creek, 3 miles NE of Alderpoint. 213 Comment
  UCSB30610  Navarretia squarrosa Edwards, David 1974-7-13 Humboldt open field to SW. of intersection of Fickle Hill Rd. and Hill St; ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  JEPS70522  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC582689  Navarretia viscidula Joseph P. Tracy 1937-7-11 15420 Humboldt vicinity Garberville 121 Comment
  UC249522  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC13587  Nemophila menziesii Francis Winter 1960-5-7 Humboldt E end Arbor Camp Ridge 915 Comment
  UC1103815  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-15 7481 Humboldt Kneeland Prairie 762 Comment
  UC146182  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC177171  Nemophila menziesii var. atomaria Joseph P. Tracy 1913-5-4 4061 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  POM65369  Nemophila menziesii var. atomaria H. P. Chandler 1901-06 1276 Humboldt Hupa Mountains. Comment
  UC144103  Nemophila parviflora Joseph P. Tracy 1909-6-20 3001 Humboldt 3 mi above Wrangletown (Freshwater Creek, Region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Freshwater Creek 0 Comment
  UC1103813  Nemophila pedunculata Joseph P. Tracy 1923-4-15 6181 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  UCD110194  Notholithocarpus densiflorus S. P. Lynch 1975-6-9 1371 Humboldt ca. 20.4 mi. E of Arcata on Hwy. 299, heading towards Willow Creek. Comment
  OBI36374  Notholithocarpus densiflorus var. densiflorus David J. Keil 1983-7-1 17266 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  HSC20657  Nuttallanthus texanus R. J. Vernimen 1963-4-27 36 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  CAS-BOT-BC142300  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  HSC77344  Oemleria cerasiformis L. P. Janeway 1983-4-16 231 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UC1198784  Oemleria cerasiformis Joseph P. Tracy 1921-3-13 5420 Humboldt Alton; Northern Coast Region 30 Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  UC902147  Oemleria cerasiformis Joseph P. Tracy 1946-7-13 17617 Humboldt Carlotta; open flat by old Strong's District School House, 5 mi e of town 60 Comment
  HSC21577  Oenanthe sarmentosa Paul Shields 1965-6-16 Humboldt HSC campus Comment
  HSC39449  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt 3 mi. W of Arcata Comment
  UCD81853  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  RSA46821  Oenanthe sarmentosa Doris K. Kildale 1925-7-28 1094 Humboldt [Unspecified] Comment
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Mar 22 2014
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  CHSC70155  Oenothera glazioviana David K. Imper 1983-7-1 Humboldt Eureka. Weedlot on 6th Street. 15 Comment
  HSC16524  Oenothera glazioviana David K. Smith 1968-11-20 67 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  POM224763  Oenothera glazioviana P. A. Munz 1936-8-10 14335 Humboldt At edge of Rio Del. Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  HSC16688  Orobanche fasciculata F. B. Plett 1963-5-15 50 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  HSC102095  Orobanche uniflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 998 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS14225  Orogenia fusiformis Joseph P. Tracy 1932-7-15 10595 Humboldt ridges e. of Corral Prairie Trinity Summit 1828 Comment
  CAS-BOT-BC458029  Orthilia secunda Carl B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E of Hoopa Valley on new road twoards Trinity Summit 1676 Comment
  RSA202254  Orthocarpus erianthus var. gratiosus L. D. Thurman 1965-4-8 626 Humboldt 4.4 miles S of Samoa, growing along the roadside in sandy soil Comment
  RSA80246  Orthocarpus erianthus var. gratiosus F. W. Peirson 1941-7-28 13107 Humboldt Along road to Patrick Point, State Park. Comment
  RSA523835  Orthocarpus faucibarbatus var. albidus Gordon H. True Jr. 1936-5-12 475 Humboldt 2 miles S of Eureka. 15 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC76202  Osmorhiza berteroi Overton, Butler 1979-8-2 12517 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA430437  Osmorhiza berteroi Lyman Benson 1928-7-10 405 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  JEPS14241  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  UC642275  Osmorhiza occidentalis Joseph P. Tracy 1932-7-12 10471 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  JEPS14242  Osmorhiza occidentalis Joseph P. Tracy 1930-6-29 8810 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
  HSC33182  Osmorhiza purpurea Thomas W. Nelson 1974-4-20 1185 Humboldt Near Elk Head N of Trinidad Comment
  CHSC70834  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road leading into the recreation area. 6 Comment
  UC275339  Oxalis oregana Joseph P. Tracy 1923-4-8 6177 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UC56731  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt North Coast Ranges 30 Comment
  UC1145217  Panicum acuminatum var. acuminatum Joseph P. Tracy 1942-6-15 17153 Humboldt 1/2 mi ne Garberville; ne of Garberville 304 Comment
  UC207819  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC249798  Panicum acuminatum var. acuminatum Joseph P. Tracy 1923-6-24 6350 Humboldt near High Prairie (Felt Prairie, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC183455  Panicum capillare Joseph P. Tracy 1911-7-7 3407 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, near Beebe's Ranch 914 Comment
  UC187238  Panicum capillare Joseph P. Tracy 1908-6 2929 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET182648 Image available Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, California Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC10526  Paspalum distichum D. E. Anderson 1963-9-29 2846 Humboldt Fish Lake. Comment
  POM160894  Paspalum distichum Joseph P. Tracy 1918-9-29 5108 Humboldt South Fork of Eel River, 4 mi above the mouth 61 Comment
  HSC58131  Paxistima myrsinites Gilbert Muth 1979-8-1 12133 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC146230  Pedicularis densiflora Joseph P. Tracy 1908-6-8 2637 Humboldt Kneeland Praire; Northern Coast Ranges 762 Comment
  HSC99452  Pedicularis groenlandica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 102 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC69341  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mountain 1524 Comment
  RSA54127  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  SD42331  Penstemon azureus Carl B. Wolf 1937-8-13 9220 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  HSC73566  Penstemon laetus subsp. sagittatus Gail Newton 1980-7-14 1503 Humboldt Near Last Chance Ridge 1219 Comment
  UC577396  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC55841  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-25 10792 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76259  Penstemon parvulus Denis Kearns 1981-6-24 31 Humboldt Near Cedar Camp 1219 Comment
  SEINET5329314 Image available Penstemon rattanii J. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC71616  Pentagramma triangularis subsp. triangularis Volney Rattan 1879-1-1 s.n. Humboldt unspecified Comment
  UC562621  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1936-10-24 15204 Humboldt 2 mi s Fields Landing; Northern Coast Region, around Humboldt Bay 9 Comment
  JEPS14223  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  HSC34709  Perideridia kelloggii Thomas W. Nelson 1974-7-20 1697 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76402  Perideridia oregana Alerie Gizinski 1981-8-25 319 Humboldt Near Al Hazen Ridge 1268 Comment
  HSC70535  Perideridia parishii subsp. latifolia Gail Newton 1980-7-20 1643 Humboldt Near Bell Swamps 1426 Comment
  HSC89625  Petasites frigidus Brent Helm, Curtis Miller, Mark Steiger 1988-3-12 29 Humboldt Lord Ellis Summit, Hwy. 299, N facing slope adjacent to Hwy. 518 Comment
  UC175181  Petasites frigidus var. palmatus Joseph P. Tracy 1913-3-9 4014 Humboldt near Hydesville (along Van Duzen River); Northern Coast Region, Van Duzen River 60 Comment
  HSC13622  Phacelia bolanderi D. E. Anderson 1963-5-25 2471 Humboldt About 1 mi. W of Fernbridge along Rd. to Ferndale Comment
  POM287458  Phacelia bolanderi Lyman Benson 1929-7-16 1833 Humboldt Weott Ranger Station. Comment
  UC1199098  Phacelia bolanderi Joseph P. Tracy 1904-7-17 2121 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC582693  Phacelia bolanderi Joseph P. Tracy 1937-6-20 15341 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC102541  Phacelia hastata subsp. hastata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1527 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  RSA30626  Phacelia heterophylla subsp. virgata Lincoln Constance, R. C. Rollins 1942-5-11 2876 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  UC1199106  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1945-7-4 17512 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222897  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt between serpentine rockpile and Ashfield Butte; Kneeland Prairie 762 Comment
  HSC44535  Phacelia mutabilis Brad Klipfel 1973-7-1 143 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC162721  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1911-7-5 3317 Humboldt Willow Creek (tributary of Trinity River) Northern Coast Ranges (near its mouth) 304 Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  UC1239735  Phacelia procera Joseph P. Tracy Jul 16 1930-Jul 19 1930 9084 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC76557  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyin Creek 152 Comment
  CAS-BOT-BC76568  Philadelphus lewisii Doris K. Kildale 1926-6-27 2203 Humboldt On road to Larabee Valley from McLellan Mt. 792 Comment
  UCSB25252  Philadelphus lewisii Tracy, Joseph 1937-6-20 Humboldt Bear River; 10 mi up from the mouth 152 Comment
  UC184148  Phleum alpinum Joseph P. Tracy 1912-7-26 3869 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC58632  Phleum pratense Gilbert Muth 1979-7-31 11490 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  RSA167445  Phlox adsurgens Joseph P. Tracy 1950-7-2 18965 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) 1280 Comment
  HSC41243  Phlox diffusa Brad Klipfel 1974-5-27 385 Humboldt Horse Mtn. Comment
  HSC55604  Phlox diffusa Overton, Butler 1979-7-23 9428 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  JEPS79944  Phlox diffusa Joseph P. Tracy 1932-7-18 10699 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  JEPS71114  Phlox gracilis Joseph P. Tracy 1935-7-23 14146 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC908605  Phlox gracilis Joseph P. Tracy 1932-7-10 10380 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC141271  Phoradendron serotinum subsp. tomentosum Doris K. Kildale 1925-12-27 1458 Humboldt Kneeland Prairie Comment
  HSC31639  Physocarpus capitatus Glenn McGourty 1974-6-1 83 Humboldt Comment
  JEPS108629  Physocarpus capitatus W. Roderick Humboldt 1.3 mi S of Indianola Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  HSC31521  Picea sitchensis Steve Selva, Roger Jensen 1974-8-28 94 Humboldt Behind Humboldt State University, Arcata. Comment
  CAS-BOT-BC73406  Pinus Doris Kildale Gillespie 1931-6-7 10587 Humboldt South Fork Mt., Blake Lookout. 1726 Comment
  POM264447  Pinus contorta var. contorta H. E. Parks, S. T. Parks 1938-03 24125 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC102637  Pinus lambertiana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1621 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC73116  Pinus lambertiana C. D. Duncan 1920-9-1 s.n. Humboldt East side of Hoope Valley Comment
  HSC42411  Pinus muricata Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, on flats along Georgia Pacific's A-line rd. , Bulk Collection # 117 122 Comment
  UC502910  Pinus muricata Joseph P. Tracy 1929-11-3 8685 Humboldt 1 1/2 mi e and ne Trinidad; Northern Coast Region 60 Comment
  UC551328  Pinus muricata Charles T. Berg 1936-8-8 Humboldt Moonstone Beach Arcata, Moonstone Beach Comment
  CAS-BOT-BC79027  Pinus ponderosa Doris K. Kildale 1928-7-1 5314 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC72732  Pinus sabiniana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC71802  Pinus sabiniana M. A. Baker 1980-6-26 2380 Humboldt Near Sims Creek 610 Comment
  UC1488747  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt ca 2 mi n Manila (between sand dunes and Mad River Slough) Comment
  CAS-BOT-BC137277  Piperia elegans Mrs. H. C. Cantelow 1940-7-6 4062 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC104332  Piperia transversa James Regan, Humboldt Redwood Co., LLC 2008-7-18 28 Humboldt Happy Valley, Bear River 579 Comment
  UC1196413  Piperia unalascensis Joseph P. Tracy 1926-5-2 7416 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC667003  Plagiobothrys bracteatus Joseph P. Tracy 1939-5-14 16287 Humboldt by spring Van Duzen Valley, Dinsmore's 731 Comment
  HSC3765  Plagiobothrys nothofulvus Doris K. Kildale 1926-5-2 1891 Humboldt Willow Creek Rd., Horse Mtn. Divide Comment
  UC1239609  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-9 14884 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UCD120865  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC1239624  Plagiobothrys tenellus Joseph P. Tracy 1918-5-1 4910 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC16830  Plantago erecta D. B. Bader 1963-3-15 28 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  POM61512  Plantago hirtella var. galeottiana Joseph P. Tracy 1901-6-30 1212 Humboldt Immediate vicinity of Eureka. 0 Comment
  CDA6622  Plantago lanceolata T. C. Fuller 1962-8-6 9359 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC32428  Plantago lanceolata Linda M. Barker 1974-5-11 174 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC54709  Plantago major Overton, Butler 1979-7-26 10057 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC154018  Plantago major J. P. Tracy 1910-10-1 3167 Humboldt immediate vicinity Eureka 0 Comment
  UCD124527  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill. 6 miles SE of Arcata. 609 Comment
  HSC71216  Plantago maritima Thomas W. Nelson, Doris K. Niles 1979-5-19 4692 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  UC1733682  Plantago subnuda Kay H. Beach, Frank Gould 1940-5-5 483 Humboldt north of Eureka along roadside; with Plantago major and Plantago lanceolata. Comment
  HSC54017  Platanthera dilatata var. leucostachys Griswold, Butler 1979-7-12 7161 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC55041  Platanthera dilatata var. leucostachys Gilbert Muth 1979-7-31 11506 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC28079  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-7-4 93 Humboldt E boundary of Hoopa Indian Reservation, Big Hill Rd. Comment
  HSC46168  Platanthera dilatata var. leucostachys J. P. Smith, Steve Selva 1970-6-30 4123 Humboldt Comment
  UC666987  Platanthera sparsiflora Joseph P. Tracy 1932-7-17 10673 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC104447  Platystemon californicus Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 23 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC502932  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC16797  Platystemon californicus J. W. Bosworth 1965-4-3 4 Humboldt Samoa sand dunes, 1 mi. SW of Fairhaven Comment
  SEINET6995401  Plectritis ciliosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Open burnt timber, saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1239576  Plectritis congesta Joseph P. Tracy 1922-4-30 6018 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UCSC000724  Plectritis congesta var. congesta S. C. Dyal 1938-6-11 651 Humboldt Moist places beside road east of Eureka Comment
  HSC40866  Poa annua Linda M. Barker 1976-4-30 1399 Humboldt 3 mi. W of Arcata Comment
  JEPS72921  Poa annua Lincoln Constance 1934-6-19 918 Humboldt near summit Grasshopper Peak; Bull Creek Region 914 Comment
  HSC10641  Poa bolanderi J. P. Tracy 1930-7-16 8902 Humboldt Near McKay Camp. 1677 Comment
  HSC73731  Poa bolanderi M. A. Baker 1980-7-19 3009 Humboldt Near Bret Hole. 1814 Comment
  UC184155  Poa compressa Joseph P. Tracy 1912-7-26 3872 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC10683  Poa confinis E. W. Styskel 1964-5-7 79 Humboldt 2 mi. S of Samoa near Samoa Rd., near beach. Comment
  RSA183609  Poa confinis R. I. Bonn 1965-5-7 27 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  HSC10695  Poa douglasii J. W. Johnson 1962-5-6 1310 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  CAS-BOT-BC255849  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  CAS-BOT-BC254278  Poa macrantha David D. Keck; J. Clausen 1935-6-16 3382 Humboldt Mouth of Little River Comment
  CAS-BOT-BC254282  Poa macrantha S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  HSC10699  Poa macrantha R. C. Drewien 1963-5-8 11 Humboldt S of the Mad River, Lanpheres' property. Comment
  UCD91557  Poa nemoralis A. E. Lyons 1926-6-1 s.n. Humboldt in city of Orick. Comment
  HSC40338  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA129262  Poa pratensis H. S. Yates 1936-6-17 5703 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  UC1565801  Poa secunda subsp. juncifolia R. Spellenberg 1990-7-10 10247 Humboldt 8 mi wsw Salyer (at 6 mi s of Berry Summit (on CA Hwy 299), extreme e edge of county) 1371 Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  UC525661  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 1/2 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts 1828 Comment
  UC525618  Poa trivialis Joseph P. Tracy 1926-6-12 7590 Humboldt near Orick (at Davison's Ranch on Prairie Creek); North Coast Ranges 60 Comment
  HSC36618  Poa unilateralis J. D. Ackerman 1974-5-25 255 Humboldt Trinidad, Trinidad Beach, S of Trinidad Head. Comment
Read comments
Mar 11 2013
  SEINET201043 Image available Poaceae Joseph P. Tracy 1923-6-19 6302 Humboldt Wilder ridge. 762 Comment
  JEPS62463  Pogogyne serpylloides Joseph P. Tracy 1921-6-12 5829 Humboldt Butler Valley 152 Comment
  HSC94146  Polycarpon tetraphyllum Gordon Leppig, Sylvia Leppig 2000-12-7 1524 Humboldt 10th and I St. in Arcata 6 Comment
  JEPS43005  Polygala californica W. L. Jepson 1932-7-30 16459 Humboldt Bull Creek 121 Comment
  SEINET1004856  Polygala californica Joseph P. Tracy 1912-1 3667 Humboldt Alton 30 Comment
  UC275346  Polygala californica Joseph P. Tracy 1923-6-20 6333 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  HSC72626  Polygala cornuta J. P. Smith, J. O. Sawyer 1977-7-1 9226 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  UC1198991  Polygala cornuta var. cornuta Joseph P. Tracy 1926-7-18 7744 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198992  Polygala cornuta var. cornuta Joseph P. Tracy 1926-6-27 7674 Humboldt Horse Mountain Northern Coast Ranges (in dryest places) 1524 Comment
  UC672974  Polygonum bistortoides Joseph P. Tracy 1930-7-16 8924 Humboldt McKay Camp South Fork Mountain 1676 Comment
  POM126162  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt Trinity River at mouth of South Fork. 152 Comment
  UC1225800  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  HSC55083  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11747 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC109185  Polygonum paronychia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  CHSC32964  Polygonum paronychia J. P. Smith; Advanced Taxonomy Class 1971-10-6 4957 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  POM232027  Polygonum paronychia I. L. Wiggins 1930-7-11 4685 Humboldt Near Samoa Comment
  UC1198086  Polygonum persicaria Joseph P. Tracy 1932-9-16 10798 Humboldt Little River; at mouth 6 Comment
  CDA2913  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt Northwestern; Outer North Coast Ranges region; West of Highway 101, 0.25 mile north of Humboldt Hill Road, Eureka. 0 Comment
  HSC54512  Polygonum spergulariiforme Overton, Butler 1979-7-23 9426 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  POM188096  Polypodium scouleri Marcus E. Jones 1931-7-12 29178 Humboldt Alton. Comment
  HSC1112  Polypodium scouleri D. E. Anderson 1962-2-10 1918 Humboldt Old Hwy. 101, S of Trinidad Comment
  HSC10823  Polypogon australis D. E. Anderson 1965-5-8 3656 Humboldt W end of bridge over Trinity River, 0.5 mile S of Willow Creek. Comment
  HSC79510  Polypogon interruptus Kenneth Clark 1980-6-14 694 Humboldt Shelter Cove, N Fork of Dead Man's Gulch. 122 Comment
  RSA91992  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC10847  Polypogon monspeliensis R. H. Berg 1963-4-30 61 Humboldt Junction of Samoa Road and Hwy. 101, Arcata. Comment
  UC1440058  Polystichum californicum Danin & H. G. Baker 1960-8-13 597 Humboldt ca. 2 mi n Dyerville (High Rock, along Ave. of Giants, w side Eel River) Comment
  UCD136476  Polystichum californicum Lincoln Constance 1934-6-4 824 Humboldt Bull Creek Region, South Fork Eel River. Comment
  HSC102542  Polystichum imbricans M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1533 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC76356  Polystichum imbricans Denis Kearns 1981-7-8 148 Humboldt Near Bluff Creek 622 Comment
  HSC41354  Polystichum munitum Brad Klipfel 1974-8-2 508 Humboldt Horse Mtn., along Horse Mtn. Creek Comment
  HSC98080  Polystichum scopulinum Cara Witte 2007-7-10 469 Humboldt Horse Mountain Botanical Area. Forest Servie Road 6N38 1349 Comment
  UC1196663  Populus trichocarpa Joseph P. Tracy 1932-5-1 9842 Humboldt along Van Duzen River Alton (North Coast Ranges); , along Van Duzen River 30 Comment
  UC1196665  Populus trichocarpa Joseph P. Tracy 1928-10-21 8521 Humboldt Van Duzen River near Hydesville; Northern Coast Ranges, Van Duzen Range 30 Comment
  UC1222285  Populus trichocarpa Joseph P. Tracy 1950-8-8 19290 Humboldt Croghen Hole on Trinity Summit (at head of hole, edge of rock area); on Trinity Summit, Croghan Hole 1676 Comment
  UC249539  Populus trichocarpa Joseph P. Tracy 1922-10-8 6125 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 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
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  RSA246822  Potamogeton pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  HSC37576  Potentilla anserina subsp. pacifica J. D. Ackerman 1975-6-10 454 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd. S of Manila Comment
  HSC96488  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 633 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  POM275246  Potentilla anserina var. grandis Lyman D. Benson 1928-7-10 437 Humboldt Clam Beach, Trinidad. Sand dunes, along a small stream. 6 Comment
  HSC102525  Potentilla drummondii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1512 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC58120  Potentilla drummondii G. L. Clifton, Griswold 1979-8-1 12089 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC44511  Potentilla gracilis Brad Klipfel 1973-7-1 115 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC279095  Potentilla gracilis var. gracilis H. E. Parks 1925-6-17 Humboldt Kneeland Comment
  CAS-BOT-BC517501  Prosartes smithii Volney Rattan 1883-6-4 s.n. Humboldt 3 mi. E Eureka Comment
  CAS-BOT-BC517513  Prosartes smithii Michael A. Hanson 1990-5-21 70 Humboldt 0.5 miles (0.8 km) east of Humboldt State University Life Science Building in Arcata near a stream in Redwood Forest. Comment
  CAS-BOT-BC517514  Prosartes smithii Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch; Shelter Cove 76 Comment
  JEPS62489  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC1402064  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 628 -30 Humboldt Comment
  HSC55996  Prunus emarginata Overton, Butler 1979-7-31 11433 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56106  Prunus emarginata G. L. Clifton 1979-7-31 11856 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC303166  Prunus emarginata Joseph P. Tracy 1924-4-20 6638 Humboldt near Fortuna; Northern Coast Ranges 60 Comment
  CAS-BOT-BC154785  Prunus virginiana var. demissa Mrs. R. M. Austin 1894-6-1 s.n. Humboldt Willow Creek Valley Comment
  UC1541680  Prunus virginiana var. demissa W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  UC1223109  Pseudognaphalium ramosissimum Joseph P. Tracy 1950-9-10 19364 Humboldt foothills 1/2 mi s Cape Town (along coast road. Cape Ridge one mi e of Cape Mendecino); Cape Ridge 152 Comment
  UC1173656  Pseudognaphalium thermale Joseph P. Tracy 1939-7-13 16348 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 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
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  HSC98638  Pseudotsuga menziesii Cara Witte 2008-7-11 884 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA1658  Pseudotsuga menziesii C. B. Wolf 1930-10-29 sn Humboldt Old Coast Rd. 7 mi S of Honeydew Post Office. 305 Comment
  SDSU2009  Pseudotsuga menziesii var. menziesii Harvey 1938-8-14 2317 Humboldt U. S 299 Arcata- Willow Creek. Comment
  UC165834  Psilocarphus tenellus J. P. Tracy 1909-5-23 2971 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC94826  Psilocarphus tenellus var. tenellus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 828 Humboldt Humboldt Redwoods S.P., Luke Prairie, N of Mattole Rd., about 3 air mi. W of Highway 101 152 Comment
  UCD18378  Psoralea micrantha Bryant Washburn 1974-7-8 s.n. Humboldt 12 miles west of Winnemucca, Milepost 519.75, at Raglan siding, in ballast section along Western Pacific Railroad tracks. Comment
  CAS-BOT-BC72557  Pteridium aquilinum Doris Kildale; L. B. Kildale 1930-9-9 10399 Humboldt Bald Mt. 914 Comment
  UC672932  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  HSC90883  Puccinellia nutkaensis Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata; 30 yards from Salt Marsh Trail. Comment
  RSA43879  Pycnanthemum californicum H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  CAS-BOT-BC460603  Pyrola aphylla Doris K. Kildale 1926-6-17 2166 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC460604  Pyrola aphylla Doris K. Kildale 1927-7-3 3632 Humboldt Willow Creek Flat 152 Comment
  HSC45426  Pyrola dentata Thomas W. Nelson, Jane Nelson 1977-7-1 3549 Humboldt Ridge between Bear and Blanket Creeks Comment
  CAS-BOT-BC466039  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Sumimt near Corral Prairie 1584 Comment
  UC56318  Pyrola picta Joseph Burtt Davy 1899-6-11 5420 Humboldt Hubbard's Station to Elk Prairie Comment
  SD42325  Pyrola secunda Carl B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1676 Comment
  CAS-BOT-BC62629  Quercus chrysolepis T. Worley; M. Mill; F. Rosenthal 1985-5-10 59 Humboldt Grays Falls Campground 240 Comment
  CAS-BOT-BC62675  Quercus chrysolepis Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. road 792 Comment
  HSC54661  Quercus chrysolepis Overton, Butler 1979-7-25 9887 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UCD40471  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -12 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  UC915707  Quercus garryana W. L. Jepson 1903-6-17 47 Humboldt Briceland Comment
  UCSB60634  Quercus garryana var. garryana Muller, Cornelius 1954-6-21 Humboldt Olsen Creek, 2 mi. ESE of Mad River on road to Forest Glen Comment
  CAS-BOT-BC105160  Quercus kelloggii H. E. McMinn 1922-8-5 330 Humboldt Mad River Comment
  CAS-BOT-BC105162  Quercus kelloggii Doris K. Kildale 1927-4-16 3023 Humboldt Between Island Mountain and Fort Seward Comment
  HSC99009  Quercus kelloggii Cara Witte 2008-7-1 785 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  SEINET4291710 Image available Quercus kelloggii Unknown 1966-1 660024 Humboldt Avenue of Giants, near Phillipsville. Comment
  UC1196360  Quercus kelloggii Joseph P. Tracy 1923-11-11 6592 1/2 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC54718  Quercus kelloggii P. E. Goddard 1901-7-12 64 Humboldt Hupa Comment
  HSC32221  Quercus vacciniifolia J. O. Sawyer 1970-6-24 2219 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC902026  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1193234  Quercus wislizeni R. H. Neuns 1950-7-31 123 Humboldt e side Tuttle Butte; Mail Ridge 914 Comment
  UC1196510  Quercus wislizeni Joseph P. Tracy 1938-6-9 15883 Humboldt North Dobbyn Creek Dobbyn Creek 152 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC162876  Ranunculus californicus J. P. Tracy 1901-5-30 1107 1/2 Humboldt Immediate Vicinity of Eureka 0 Comment
  UC503026  Ranunculus californicus Joseph P. Tracy 1932-5-10 9927 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  HSC18134  Ranunculus californicus var. californicus R. J. Vernimen 1963-5-11 56 Humboldt 0.5 mi. off Samoa Rd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  UC668066  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt shallow pool near Bosworth's; Larrabee Creek 365 Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  HSC18153  Ranunculus muricatus T. W. Beck 1963-5-10 50 Humboldt Camp Bauer, Korbel Comment
  HSC18172  Ranunculus occidentalis var. occidentalis J. Mustain 1963-4-27 40 Humboldt Big Lagoon Park Comment
  HSC99092  Ranunculus occidentalis var. occidentalis Cara Witte 2008-7-2 824 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC26783  Ranunculus occidentalis var. occidentalis Thomas W. Nelson 1971-5-31 451 Humboldt 915 Comment
  HSC53862  Ranunculus orthorhynchus Griswold, Butler 1979-7-10 6338 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC18220  Ranunculus orthorhynchus var. platyphyllus Jack Rockwell 1962-5-4 53 Humboldt Along Ellison Creek near rd. 457 Comment
  RSA20857  Ranunculus orthorhynchus var. platyphyllus Carl B. Wolf 1937-6-18 8897 Humboldt 1/2 miles E of Alton. 21 Comment
  CDA3496  Ranunculus parviflorus J. F. Hart 1964-5-21 Humboldt Garberville district. 0 Comment
  POM118709  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC838004  Ranunculus repens Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  HSC39445  Ranunculus repens var. repens Linda M. Barker 1976-6-1 1555 Humboldt 3 mi. W of Arcata Comment
  UC502929  Ranunculus uncinatus Joseph P. Tracy 1932-7-10 10394 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC18231  Ranunculus uncinatus var. parviflorus D. E. Anderson 1961-8-11 1735 Humboldt E of Humboldt State College campus. 30 Comment
  HSC89520  Raphanus sativus M. Roantree 1985-6-11 86 Humboldt E side of Trinidad Head, near entrance Comment
  CAS-BOT-BC55966  Rhamnus ilicifolia L. R. Abrams 1927-9-11 12141 Humboldt Fork Klamath and Shasta Rivers Comment
  POM244260  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  RSA246419  Rhamnus purshiana Carl B. Wolf 1937-8-13 9260 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  RSA390632  Rhamnus purshiana Christopher Davidson 1973-5-29 2203 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  UC61101  Rhamnus purshiana J. Burtt Davy 1899-6-28 5899 Humboldt below Hupa (banks of Klamath River); North Coast Ranges, Klamath River Comment
  UC902201  Rhamnus purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UCR136663  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-1 24018 Humboldt North Coast, Spruce Cove, Trinidad Comment
  RSA2944  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC725903  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt 3 mi n of Trinidad (at Bishop Pine Lodge); Bishop Pine Lodge Comment
  UCR275107  Rhododendron macrophyllum Charity A. Hartshorn 2016-5-14 35 Humboldt Arcata Community Forest 244 Comment
  HSC97939  Rhododendron occidentale Cara Witte 2007-6-19 290 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  POM89847  Rhododendron occidentale Chesnut 1880-8-10 s.n. Humboldt Arcata. Comment
  UC1733675  Rhododendron occidentale Frank Gould, Kay H. Beach 1940-5-5 1041 Humboldt along north coast, north of Eureka. Comment
  UC604660  Rhododendron occidentale Joseph P. Tracy 1938-7-5 16015 Humboldt 4 mi s of Eureka (Spruce Point at junction of Humboldt Hill road with highway); Spruce Point 9 Comment
  RSA0062953  Rhododendron occidentale var. californicum C. B. Wolf 1934-7-2 5905 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  CAS-BOT-BC433139  Ribes Doris Kildale Gillespie 1931-6-7 10638 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  RSA24301  Ribes bracteosum Carl B. Wolf 1941-2-25 9958 Humboldt Freshwater lagoon. 30 Comment
  UC203883  Ribes bracteosum Joseph P. Tracy 1918-5-28 4939 Humboldt High Prairie Creek Northern Coast Ranges 914 Comment
  HSC103215  Ribes divaricatum var. pubiflorum Jade Paget-Seekins 2010-4-16 9 Humboldt Hwy 36. Van Duzen County Park. Along the road on the west side of the park. 95 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198917  Ribes lacustre Joseph P. Tracy 1936-8-7 15095 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 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
  UC1198906  Ribes laxiflorum Joseph P. Tracy 1918-4-28 4890 Humboldt Northern Coast Ranges, Eureka, Ryan's Slough Ryan's Slough; Northern Coast Ranges, Eureka, Ryan's Slough 0 Comment
Read comments
Jan 25 2012
  CAS-BOT-BC173363  Ribes lobbii L. R. Abrams 1918-6-14 7091 Humboldt Three Creeks Comment
  CAS-BOT-BC173364  Ribes lobbii Joseph P. Tracy 1933-7-16 12783 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  HSC69887  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1977-7-30 3665 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  JEPS48559  Ribes lobbii Hilda W. Grinnell 1932-7-9 7 Humboldt below Camp McKay; So. Fork Mt. 1584 Comment
  HSC58085  Ribes marshallii G. L. Clifton, Griswold 1979-8-1 11991 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  LA205539  Ribes marshallii Joseph P. Tracy; 1932-7-15 10592 Humboldt Klamath Mountains, Trinity Summit. ridges E of Corral Prairie 1828 Comment
  HSC20311  Ribes menziesii J. L. Baker 1965-4-24 33 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC20322  Ribes menziesii C. O. Baker 1962-3-22 11 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  UC183753  Ribes roezlii Joseph P. Tracy 1913-3-9 4012 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC57009  Ribes roezlii var. cruentum Overton, Butler 1979-7-24 9602 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  JEPS49455  Ribes roezlii var. cruentum P. E. Goddard 1901-7 83 1/2 Humboldt Hupa Comment
  UCR45437  Ribes roezlii var. cruentum Kenneth Clark 1980-6-14 691 Humboldt Above N Fork Dead Man's Gulch 229 Comment
  HSC20335  Ribes sanguineum D. B. Bader 1963-2-17 31 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  HSC20339  Ribes sanguineum Jack Rockwell 1962-5-4 7 Humboldt S side of Hwy 427 Comment
  HSC73148  Ribes sanguineum M. A. Baker 1980-5-18 1286 Humboldt Near Black Mtn. 1006 Comment
  UC11646 Image available Ribes sanguineum Harley P. Chandler June, 1901 1287 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC144679  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-8-8 2479 Humboldt Dyerville, south Fork of Eel River 51 Comment
  HSC20346  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg Comment
  HSC49912  Ribes sanguineum var. glutinosum Maralyn O'Meara 1973-2-19 189 Humboldt McKinleyville, Murray Rd. Comment
  UC1215537  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt along road to Lanphere Ranch 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
  RSA0018245  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside the Eel River just north of the terminus of Singley Rd. Comment
  HSC102609  Ribes viscosissimum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1596 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  RSA0020901  Ribes viscosissimum Jos. Burtt Davy 1899-6-23 5848 Humboldt Trinity Summit. 2134 Comment
  HSC100500  Romanzoffia sitchensis Carl C. Marshall Apr 1886 196 Humboldt Damp rocks, Jacoby Creek. Comment
  HSC44064  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1977-6-19 3506 Humboldt Above Alder Springs 1585 Comment
  JEPS53820  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  CAS-BOT-BC146489  Rosa gymnocarpa Doris Kildale Gillespie 1931-6-7 10623 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC44333  Rosa gymnocarpa Brad Klipfel 1975-6-17 678 Humboldt Horse Mtn. Comment
  POM232034  Rosa gymnocarpa I. L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  SEINET200819  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain ,viz. Ridge north of Willow Creek, between Willow and Campbell Creeks, near the summit 1219 Comment
  CAS-BOT-BC148347  Rosa pisocarpa Doris K. Kildale 1928-6-24 5238 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC148221  Rosa spithamea Doris K. Kildale 1930-5-24 9549 Humboldt Trinity River at Hoopa 121 Comment
  CAS-BOT-BC133114  Rosaceae C. Hart Merriam 1921-8-19 s.n. Humboldt Big Lagoon Comment
  UCD113775  Rubus armeniacus K. Twitchell 1996-5-11 27 Humboldt Crannell, along old Highway 101 at Moonstone Beach access. 36 Comment
  POM366457  Rubus laciniatus Thekla Mohr 1900-07 s.n. Humboldt Eel River Comment
  UC709448  Rubus lasiococcus Joseph P. Tracy 1941-8-24 17042 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  HSC100637  Rubus nutkanus Carl C. Marshall Apr 1886 162 Humboldt Near stream. Comment
  HSC102093  Rubus parviflorus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 996 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC22496  Rubus parviflorus G. T. Nordstrom 1966-4-24 11 Humboldt Kneeland-Maple Creek Rd. near jct. with Korbel Rd. Comment
  CHSC13518  Rubus spectabilis A. R. Morrison 1974-4-27 Humboldt Ca. 1.5 mi. off Hwy. 101 on Westhaven Rd., Trinidad. 45 Comment
  CHSC68502  Rubus spectabilis Vernon H. Oswald 1997-4-10 8315 Humboldt Clam Beach between Arcata and Trinidad. Bordering a creek on the back beach. 30 Comment
  HSC31512  Rubus spectabilis Steve Selva, Roger Jensen 1974-8-21 27 Humboldt Redwood grove adjacent to Hwy. 101 rest stop, ca. 3 mi. N of Trinidad Comment
  HSC19692  Rubus ursinus W. L. Jepson 1932-8-8 16528 Humboldt Weott 305 Comment
  UCD17617  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 047 Humboldt California. Humboldt County: 6.6 miles north of Ettersburg on road to Honeydew. Comment
  UCD17624  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 040 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  UCD17839  Rubus ursinus H. Olmo 8-10 May 1962 62- 37 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  UCD17846  Rubus ursinus H. Olmo 8-10 May 1962 62- 33 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  HSC102053  Rumex acetosella M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 958 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC64433  Rumex acetosella J. P. Smith 1971-10-6 4943 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC70394  Rumex acetosella M. A. Baker 1980-6-7 1847 Humboldt Near Ammon Creek 732 Comment
  HSC76604  Rumex acetosella John Demarinis 1981-7-21 885 Humboldt Near Table Bluff 38 Comment
  HSC44539  Rumex acetosella Brad Klipfel 1973-7-15 155 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC69627  Rumex acetosella R. Kalal 1980-5-8 32 Humboldt Along Jackson Ranch Rd. 6 Comment
  HSC98701  Rumex acetosella subsp. acetosella Cara Witte 2007-5-21 69 Humboldt White Oak Opening. 1257 Comment
  UC672929  Rumex conglomeratus Joseph P. Tracy 1933-8-13 12966 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  UC176683  Rumex pulcher Joseph P. Tracy 1912-6-9 3645 Humboldt Alton Northern Coast Region 30 Comment
  HSC31482  Rumex salicifolius R. F. Thorne, P. Everett 1965-8-9 35311 Humboldt Big Lagoon 3 Comment
  HSC9564  Rytidosperma penicillatum True Hoyle 1967-6-24 26167 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  UC1103530  Sagina apetala Joseph P. Tracy 1921-4-24 5435 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  UC668107  Sagina apetala Joseph P. Tracy 1932-5-1 9839 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  BLMAR466  Salicornia depressa Jennifer Anthony-Wheeler 2007-8-28 466 Humboldt South Spit 6 Comment
  HSC62891  Salicornia depressa J. M. DiTomaso 1979-5-20 1066 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  CAS-BOT-BC103815  Salix exigua Harold E. Parks 1931-5-14 0961 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC103819  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01245 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC6088  Salix exigua Harold Ernest Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CHSC9646  Salix exigua E. L. Smith 1971-8-17 1017 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC19943  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  UC1173601  Salix exigua var. hindsiana Joseph P. Tracy 1935-6-22 13963 Humboldt Eel R. at mouth of Larrabee Creek 45 Comment
  CAS-BOT-BC104109  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC104110  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC104112  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107702  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107715  Salix hookeriana Doris K. Kildale 1926-6-29 2238 Humboldt Mouth of Mad River Comment
  CAS-BOT-BC107719  Salix hookeriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CHSC96696  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC38196  Salix hookeriana Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  HSC90466  Salix hookeriana Jean Hanson 1980-3-8 31 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12914  Salix hookeriana H. E. Parks and Joseph P. Tracy 1927-4-23 7921 Humboldt Big Lagoon; Northern Coast Ranges 6 Comment
  JEPS12959  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  JEPS12960  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  POM219537  Salix hookeriana H. E. Parks 1931-08 1057 Humboldt Bishop Pine Lodge. Trinidad. 150 Comment
  POM362593  Salix hookeriana H. E. Parks 1931-08 1053 Humboldt Little River Lagoon. 0 Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1196553  Salix hookeriana Joseph P. Tracy 1935-3-3 13714 Humboldt mouth of Mad R. 6 Comment
  UC1225777  Salix hookeriana Joseph P. Tracy 1948-9-26 18231 Humboldt 6 mi s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC275498  Salix hookeriana Joseph P. Tracy 1925-10-11 7280 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Rd.); Northern Coast Ranges 609 Comment
  UC470405  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC470440  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC506380  Salix hookeriana Joseph P. Tracy 1933-2-26 10912 Humboldt along S. Fork Eel River Miranda; Northern Coast Ranges, S. Fork Eel River 121 Comment
  UC512092  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  JEPS14791  Salix jepsonii Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  UC1173602  Salix laevigata Joseph P. Tracy 1935-6-22 13962 Humboldt at mouth of Larrabee Creek Eel River 45 Comment
  HSC19988  Salix lasiandra H. E. Parks 1931-3-24 911 Humboldt Along lower Eel River, near Fortuna Comment
  UC490525  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9796 Humboldt Alton to Fortuna; Northern Coast Region 15 Comment
  CAS-BOT-BC128189  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  HSC96606  Salix lasiandra var. lasiandra Gordon Leppig 2003-2-20 1809 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  CAS-BOT-BC107615  Salix lasiolepis Harold E. Parks 1931-3-31 9327 Humboldt Redwood Creek, at Berry's 274 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
  CAS-BOT-BC107644  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  HSC56187  Salix lasiolepis Gilbert Muth 1979-8-1 12123 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS14751  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  JEPS14752  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC471110  Salix lasiolepis Joseph P. Tracy 1931-3-31 9327 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481313  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490471  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC511982  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UCSB11963  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-13 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107288  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-4-9 10968 Humboldt along Van Duzen R. 228 Comment
  SBBG29043  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt Willow Crk at Trinity River 150 Comment
  CAS-BOT-BC125638  Salix melanopsis Harold E. Parks 1931-5-28 01027 Humboldt Little River Lagoon, at sea level Comment
  HSC20058  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  LA208935  Salix melanopsis Harold E. Parks; 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  RSA171964  Salix melanopsis Robert F. Thorne 1957-9-2 18986 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SBBG22044  Salix melanopsis R. F. Thorne 1957-9-2 Humboldt branch of Eel River at Burlington State Park, just S of Weott Comment
  UC1196564  Salix melanopsis Joseph P. Tracy 1931-5-3 9347 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC1196636  Salix melanopsis Joseph P. Tracy 1932-5-1 9845 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC162649  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt near its mouth Willow Creek; Northern Coast Ranges, Willow Creek - tributary of Trinity R 182 Comment
  UC212984  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC470452  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481293  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt between Alton and Carlotta (Van Duzen R.); Van Duzen R. 15 Comment
  UC481307  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481344  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  LA208911  Salix scouleriana Harold E. Parks; 1931-5-14 957 Humboldt Little Larabee Bridge; Van Duzen River 450.0 Comment
  UC1173627  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt vicinity of Carlotta 30 Comment
  UC481272  Salix scouleriana Harold E. Parks 1931-5-28 1017 Humboldt edge of dunes Little River Lagoon Comment
  UC525976  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch) Trinidad Comment
  BLMAR266  Salix sitchensis Jennifer Anthony-Wheeler 1999-6-16 266 Humboldt Headwaters Forest Reserve, growing along-side road N of borrow pit toward scar rd. 432 Comment
  UC302155  Salix sitchensis Joseph P. Tracy 1926-3-14 7392 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  HSC20133  Salix tracyi J. P. Tracy 1933-5-14 12178 Humboldt Trinity River Valley, mouth of Willow Creek 152 Comment
  CDA5800  Salpichroa origanifolia J. Sievert 1981-9-24 s.n. Humboldt Elk River Road, 0.1 mile east of junction with Ridgewood Drive behind Wonnacott Kennels, 6101 Elk River Road. 0 Comment
  RSA53827  Salsola tragus H. M. Pollard s.n. Humboldt Near Orleans. Comment
  UCLA69890  Salvia dorrii var. pilosa unknown Humboldt Harris Spring road 1828 Comment
  HSC101557  Salvia mellifera J. P. Smith, J. O. Sawyer 2009-10-4 12685 Humboldt Along New Navy Base Road near Samoa Boat Ramp 2 Comment
  RSA407351  Sambucus callicarpa Lyman Benson 1973-08 815 Humboldt Weott Ranger Station 61 Comment
  HSC98110  Sambucus mexicana Cara Witte 2007-6-27 362 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  UC1239541  Sambucus mexicana Joseph P. Tracy 1933-8-22 12978 Humboldt Eureka; old garbage dump 6 Comment
  HSC57005  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9591 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC76248  Sambucus nigra subsp. caerulea Denis Kearns 1981-7-23 400 Humboldt Near Whiteys Peak. 1524 Comment
  SFV18554  Sambucus racemosa W. Coleman, B. Hammer, J. Radtke 1998-3-20 954 Humboldt Arcata marsh. 3 Comment
  CAS-BOT-BC235125  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt 1 mi. so. of Trinidad 91 Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  HSC3971  Sambucus racemosa var. racemosa R. A. Rasp 1964-5-20 44 Humboldt HSU campus, beside Jolly Giant Creek. Comment
  HSC91606  Sambucus racemosa var. racemosa E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Palmer's Point. Comment
  UCSB22664  Sambucus racemosa var. racemosa Jensen, Karen 1965-4-14 Humboldt Along Tompkin's Hill Rd., 2.7 mi. from Hwy. 101 turnoff, northeast of Fortuna 91 Comment
  HSC45104  Sanicula arctopoides R. Sutherland 1978-2-18 9 Humboldt 3 Comment
  UC183563  Sanicula bipinnatifida Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3606 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 30 Comment
  HSC21629  Sanicula bipinnatifida D. E. Anderson, N. J. Cole 1965-4-13 13 Humboldt 2 1/2 mi. SE of Maple Creek Rd. junction with Bald Hills Road, SE of Korbel Comment
  UC1197105  Sanicula bipinnatifida Joseph P. Tracy 1926-5-9 7460 Humboldt Northorn Coast Ranges, Valley of South Yager Creek Valley of South Yager Creek; Northorn Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC82108  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5253 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  UC1022530  Sanicula crassicaulis C. Ritchie Bell 1952-5-2 3 X450 Humboldt 1.1 mi w of Hydesville Comment
  HSC38885  Sanicula graveolens J. O. Sawyer 1970-6-25 2297 Humboldt 1646 Comment
  HSC34957  Sanicula tuberosa Thomas W. Nelson 1975-5-24 1863 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1541383  Sanicula tuberosa W. K. Parks July 1933 Humboldt Buck Mountain Comment
  UCR39791  Sanicula tuberosa D. K. Imper 1982-7-13 s.n. Humboldt Six Rivers Nat. Forest, l mi. 6' north of Chaparral Mtn. 1375 Comment
  HSC36506  Sarcodes sanguinea Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1885 Humboldt Beside branch off FS Rd. 2S08 to Pine Mtn. Comment
  UC154268  Satureja douglasii P. E. Goddard 1901-7-12 80 Humboldt Hupa Valley Comment
  UC1198878  Saxifraga californica Joseph P. Tracy 1925-4-5 6953 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC709459  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC154143  Saxifraga mertensiana Mrs. M. H. Manning 1902-3 Humboldt near Hupa Comment
  JEPS26213  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC74483  Saxifragopsis fragarioides Gail Newton 1980-7-24 1773 Humboldt Near Somes Mtn. 1615 Comment
  RSA53798  Schoenoplectus acutus var. occidentalis Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  POM290747  Schoenoplectus pungens Lyman Benson 1928-7-10 436 Humboldt Clam Beach, Trinidad. 9 Comment
  SEINET3914806  Scirpus microcarpus James P. Smith 1973-5-26 6859 Humboldt Scotia Bluffs along the Eel River near Rio Dell.; 0 Comment
  UC1152056  Scirpus microcarpus Joseph P. Tracy 1950-8-7 19269 Humboldt meadow at Box Camp (Trinity Summit); , meadow at Box Camp 1463 Comment
  JEPS63972  Scirpus microcarpus Lincoln Constance 1934-6-2 782 Humboldt wet sand below spring on s bank near mouth Bull Cr (Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River, s bank Bull Cr Comment
  RSA246886  Scirpus microcarpus Robert F. Thorne, Percy C. Everett 1965-8-9 35320 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC774886  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway 3 mi n Orick (at Davison's Ranch on Prairie Creek); n of Orick at Davison's Ranch on Prairie Creek 60 Comment
  CHSC20041  Scoliopus bigelovii M. S. Taylor 1975-4-12 465 Humboldt Ca. 1 mi w of Berry Summit on Hwy 299, ca. 6 mi w of Willow Creek. 762 Comment
  SEINET8501887  Scoliopus bigelovii R. R. Halse 2013-3-28 8766 Humboldt Along US Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood. 76 Comment
  CAS-BOT-BC517415  Scoliopus bigelovii Doris K. Kildale 1926-2-28 1520 Humboldt Kneeland Prairie Road at the watering trough 609 Comment
  RSA425151  Scrophularia californica Christopher Davidson 1973-5-29 2202 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  RSA425152  Scrophularia californica Bonnie C. Templeton 1964-6-13 10088 Humboldt Trinidad Head, near Lighthouse Point. 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
  RSA246671  Scrophularia californica var. californica Robert F. Thorne, Percy C. Everett 1965-8-9 35314 Humboldt Clam Beach County Park. 3 Comment
  HSC97449  Scutellaria antirrhinoides Cara Witte 2007-6-7 218 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  RSA12446  Scutellaria antirrhinoides Carl B. Wolf 1934-7-1 5847 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  UC577338  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC79271  Sedum laxum subsp. flavidum D. K. Imper 1984-5-17 Humboldt Hogback Ridge W of FS6N06, 1.0 mi. N of junction with 5N01 1341 Comment
  HSC59361  Sedum laxum subsp. heckneri M. A. Baker 1979-7-8 621 Humboldt 2 km S of the junction of the roads to Blue Creek Mtn. and Onion Lake 1400 Comment
  UC1225753  Sedum laxum subsp. heckneri Joseph P. Tracy 1948-9-5 18190 Humboldt 1 mi s Grizzly Camp (head of Little Hors-Linto Creek, Trinity Summit); Trinity Summit, head Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC63827  Sedum spathulifolium L. R. Abrams 1922-6-25 8294 Humboldt Bluffs north of Big Lagoon. Comment
  UC1198832  Sedum spathulifolium Joseph P. Tracy 1911-7-4 3298 Humboldt along Willow Creek Northern Coast Ranges, Willow Creek, trib Trinity River (tributary of Trinity River near its mouth) 182 Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  UC581696  Senecio glomeratus Joseph P. Tracy 1934-6-19 13234 Humboldt vicinity Carlotta 30 Comment
  HSC38520  Senecio integerrimus D. E. Anderson, J. P. Smith 1971-6-18 - 1079 Humboldt Horse Mtn. Comment
  CAS-BOT-BC364014  Senecio integerrimus var. major Doris Kildale Gillespie 1931-6-7 10620 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  CAS-BOT-BC364522  Senecio vulgaris Mrs. H. C. Cantelow 1936-8-29 1581 Humboldt Old Man of Spring, Redwood Highway Comment
  HSC6129  Senecio vulgaris J. W. Johnson 1962-4-8 1215 Humboldt Arcata, Mad River Co. Park Comment
  RSA0013853  Senecio vulgaris R. F. Thorne, Percy C. Everett 1965-8-8 35257 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  JEPS12650  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  UC1541655  Sherardia arvensis Harold E. Parks Jun 1935 4995 Humboldt Trinidad; Spruce Cove Comment
  UC169027  Sherardia arvensis Joseph P. Tracy 1906-5-6 2446 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC170179  Sidalcea asprella Harley P. Chandler June, 1901 1438 Humboldt Klamath River North Coast Ranges, Klamath River Comment
  CAS-BOT-BC205577  Sidalcea malachroides F. H. Utech 1986-5-23 86 -399 Humboldt Ca. 3.0 mi NW of Petrolla on Mattole Road (Humboldt Co. hwy F3C) enroute to Capetown 80 Comment
  RSA168963  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  RSA168965  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  UC1222509  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  UC665632  Sidalcea malviflora subsp. patula H. E. Parks May, 1940 24177 Humboldt Dow's Prairie 30 Comment
  JEPS67267  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-12 15653 Humboldt Snow Camp 1402 Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  UC668099  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  UC1541414  Silene californica H. E. and S. T. Parks June 1928 258 Humboldt Longvale 182 Comment
  UC419028  Silene californica H. E. Parks May 1930 751 Humboldt vicinity Hydesville; vicinity of Hydesville Comment
  UC668095  Silene campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , Hyampom Trail 1676 Comment
  UC8435  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  HSC58156  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-8-2 12208 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC74495  Silene campanulata subsp. glandulosa M. A. Baker 1980-7-24 3210 Humboldt Near Orleans Mtn. 1625 Comment
  HSC39236  Silene gallica D. E. Anderson, J. P. Smith 1971-6-28 - 1267 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC630502  Silene gallica H. E. and S. T. Parks June, 1936 5634 Humboldt Spruce Cove , Spruce Cove (Trinidad) Comment
  HSC81686  Silene grayi Thomas W. Nelson 1979-7-11 5005 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1225793  Silene grayi Joseph P. Tracy 1947-7-9 17851 Humboldt Horse Mountain 1432 Comment
  UC668083  Silene grayi Joseph P. Tracy 1932-7-18 10705 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  UC427880  Silene hookeri H. E. Parks, J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  POM193013  Silene hookeri subsp. bolanderi H. E. Parks, Joseph P. Tracy 1930-5-25 0791 Humboldt Laribee Valley. 793 Comment
  CAS-BOT-BC181235  Silene hookeri subsp. bolanderi T. Worley; M. Mill; F. Rosenthal 1985-4-20 37 Humboldt Burnt Ranch Campground, Shasta-Trinity Nat'l Forest 432 Comment
  HSC38072  Silene laciniata subsp. californica Thomas W. Nelson, James Nelson 1976-5-30 2635 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC91612  Sinapis arvensis E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, along Patrick's Point Drive Comment
  HSC49362  Sisyrinchium bellum R. York 1979-4-13 219 Humboldt Just N of College Cove, 1 mi. N of Trinidad Comment
  UC15044  Smilacina stellata J. P. Tracy 1901-4-26 1057 Humboldt Humboldt Hill Immediate Vicinity of Eureka 0 Comment
  HSC78987  Solanum aviculare L. P. Janeway 1984-5-16 803 Humboldt N spit of Humboldt Bay alongside dirt rd. on S side of Coast Guard Station 3 Comment
  UC1196154  Solanum umbelliferum Joseph P. Tracy 1937-7-2 15406 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC365430  Solidago elongata Alice Eastwood 1907-4-21 19 Humboldt Port Trinidad Comment
  CAS-BOT-BC365432  Solidago elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  SEINET191265 Image available Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt Samoa. Comment
  SEINET5782991 Image available Solidago spathulata S. K. Harris 1939-9-5 Humboldt Samoa Comment
  HSC32524  Soliva sessilis David Johnson 1974-5-2 74 Humboldt Mad River Co. Park, mouth of the Mad River; by the parking lot Comment
  HSC6219  Sonchus asper Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  CAS-BOT-BC374427  Sonchus asper Joseph P. Tracy 1932-6-4 10132 Humboldt Bridgeville 198 Comment
  HSC97911  Sorbus scopulina var. cascadensis Cara Witte 2007-6-13 267 Humboldt Along Forest Service Rd. 5N04. Approximately 1 mile east of intersection to Grouse Mountain Lookout. 1534 Comment
  RSA244508  Sparganium angustifolium subsp. emersum Larry E. DeBuhr, Gary D. Wallace 1973-9-16 1198 Humboldt At Gold Bluff Beach in Prairie Creek Redwoods State Park. Comment
  UCSB34193  Spartina foliosa Kearns, Dennis 1979-8-24 Humboldt Spring Tide Area of Arcata Bay, Arcata Boat Launching Facility at the South end of "I" Street Comment
  HSC89986  Spergularia canadensis var. occidentalis Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  HSC4248  Spergularia rubra D. E. Anderson 1963-5-19 2462 Humboldt Barry Rd., Kneeland Comment
  CAS-BOT-BC149617  Spiraea douglasii Milo S. Baker 1927-8-21 2484 b Humboldt [Spagnum] Sphagnum Bog near Bald Mt. 914 Comment
  CAS-BOT-BC149618  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  CAS-BOT-BC149620  Spiraea douglasii Harley P. Chandler 1901-5-1 1197 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC149622  Spiraea douglasii G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  POM312888  Spiraea douglasii Malcolm A. Nobs, S. Galen Smith 1949-8-9 1226 Humboldt 1 m N of Arcata at jct of Hwys 101 and 229. Mad River Valley. Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC492192  Spiraea douglasii Joseph P. Tracy 1932-8-28 10760 Humboldt Bald Mountain Northern Coast Ranges (at Lake Prairie) 1066 Comment
  UC666852  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  HSC41270  Spiraea splendens var. splendens Brad Klipfel 1974-6-25 413 Humboldt Horse Mtn. Comment
  UC1196399  Spiranthes romanzoffiana Joseph P. Tracy 1949-8-11 18463 Humboldt Snow Camp 1402 Comment
  JEPS62959  Stachys ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 15 Comment
  UC1239733  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-9 14881 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC577331  Stachys ajugoides var. rigida Joseph P. Tracy 1933-8-6 12944 Humboldt French Camp Ridge 1066 Comment
  UCLA71116  Stachys ajugoides var. rigida H. Lewis 1940-7-2 Humboldt Stone Lagoon Comment
  UC668216  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-9 15874 Humboldt 2 mi s Blocksburg 304 Comment
  UCLA70845  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt on Weaverville-Arcata Road Willow Creek Comment
  UCLA71143  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16132 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC25942  Stachys chamissonis H. M. Hall 1899-10-17 Humboldt Arcata Comment
  UCD125774  Stachys chamissonis Linda M. Barker 1976-8-24 1683 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SD50775  Stachys emersonii Darley F. Howe 1959-8-4 2803 Humboldt 86 miles west of Weaverville on Highway 299. 152 Comment
  HSC89453  Stachys mexicana M. Roantree 1985-5-7 40 Humboldt SW side of Trinidad Head, along trail Comment
  HSC25930  Stachys mexicana Thomas W. Nelson 1970-10-30 310 Humboldt S of Education Building on HSC campus Comment
  UC1103544  Stellaria borealis subsp. sitchana Joseph P. Tracy 1935-7-27 14294 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC1116227  Stellaria crispa Joseph P. Tracy 1943-3-21 17411 Humboldt Scotia 30 Comment
  UC1586791  Stellaria crispa Juha Pykala 1987-6-20 1853 Humboldt Kneeland Greenwood Heights; n of Prof. D. H. Harris house 350 Comment
  HSC39800  Stellaria media Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC4275  Stellaria media W. F. Nickel 1965-4-12 Humboldt HSC Campus behind biological sciences building Comment
  HSC103125  Stenanthium occidentale M. Mesler, Robin Bencie 2009-7-7 808 Humboldt Big Hill Rd, near Domingo Creek. 1367 Comment
  CAS-BOT-BC375783  Stephanomeria virgata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC97968  Stipa lemmonii var. lemmonii Cara Witte, Michael Scott 2007-6-22 348 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  JEPS118112  Streptanthus breweri Dean W. Taylor 2005-6-9 19339 Humboldt ridge dividing Swift Creek from Horse Creek, ca. 2 air miles SSE of Larabee Valley 853 Comment
  UC1492818  Streptanthus tortuosus Freed W. Hoffman 1950-7-10 3434 Humboldt on road from Willow Creek to Happy Camp 6.6 mi s Klamath River; Hoopa Indian Reservation Comment
  UC1198799  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1938-6-13 15909 Humboldt on exposed rock ledge near Cold Springs; North Coast Ranges, Grouse Mountain 1432 Comment
  UC302044  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-6-6 7554 Humboldt on road w from Hoopa to Bair's near summit; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC99005  Streptanthus tortuosus var. tortuosus Cara Witte 2008-6-15 730 Humboldt Coldspring Camp. 1460 Comment
  UC1197806  Streptopus amplexifolius var. americanus Joseph P. Tracy 1934-7-12 13375 Humboldt Big Lagoon 30 Comment
  UC175818  Streptopus amplexifolius var. americanus Joseph P. Tracy 1912-8-1 3956 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC412594  Swertia albicaulis var. nitida Mrs. M. H. Manning 1901-1 Humboldt near Hupa Comment
  HSC34130  Swertia radiata J. O. Sawyer 1970-6-24 2285 Humboldt Near Waterdog Lakes 1860 Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UCR198251  Symphoricarpos albus Dean Kelch 2007-7-25 07- 506 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  BLMAR248  Symphoricarpos mollis Jennifer Anthony-Wheeler 1997-7-24 248 Humboldt Lacks Creek, growing beneath conifer canopy 1219 Comment
  UC1199312  Symphyotrichum bracteolatum Joseph P. Tracy 1931-9-7 9635 Humboldt opposite mouth of, at Lack Pond, (in Trinity R. Valley opp. mouth of Willow Cr.) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC1174865  Symphyotrichum chilense P. C. Everett and E. K. Balls 1959-10-25 23960 Humboldt 1/4 mi w of, on hwy 299 to Arcata Willow Creek 502 Comment
  UC1199311  Symphyotrichum chilense Joseph P. Tracy 1939-9-4 16475 Humboldt Buck Mt., nw slope Buck Mt. 762 Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC99369  Symphyotrichum subspicatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  JEPS35821  Symphyotrichum subspicatum Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8966 Humboldt 9.5 mi n and w, s of Cape Mendocino Petrolia; Cape Mendocino Comment
  CAS-BOT-BC376718  Tanacetum bipinnatum Lewis S. Rose 1972-7-5 72005 Humboldt Samoa 3 Comment
  UCSB25217  Tanacetum douglasii J. R. Haller 1967-6-17 2181 Humboldt collected 10.0 mi N, at Clam Beach County Park, along U S Highway 101 Arcata - Clam Beach County Park, U S Highway 101, and Arcata Comment
  UC581790  Tanacetum vulgare Joseph P. Tracy 1929-10-1 8675 Humboldt Eureka 15 Comment
  RSA259589  Tauschia kelloggii Thomas W. Nelson, James Nelson 1975-5-24 1840 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC38893  Tauschia kelloggii J. P. Smith, J. O. Sawyer 1973-5-12 6684 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  JEPS49699  Tellima grandiflora Milo S. Baker 1923-7-24 Humboldt near Carlotta (Wilder's Ranch) Comment
  UC160904  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2714 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC162645  Thlaspi montanum var. montanum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5736 Humboldt Hupa North Coast Ranges, , Hupa (Supply Creek) Comment
  CAS-BOT-BC81309  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt along road from Blue Lake to Willow Creek (Lord Ellis Road) 9 miles above Blue Lake 243 Comment
  CAS-BOT-BC81316  Thuja plicata Doris K. Kildale 1926-11-13 2850 Humboldt Eureka 21 Comment
  RSA301968  Thuja plicata J. R. Shevock 1972-3-26 1468 Humboldt Along Hwy 299. 366 Comment
  UC615042  Thuja plicata Beryl O. Schreiber 1934-6-5 1132 Humboldt 5 mi e of Blue Lake (road to Redding, wooded slope) Comment
  UC1541459  Thysanocarpus curvipes H. E. Parks 1930-5-25 870 Humboldt Laribee Valley 762 Comment
  SBBG21852  Tiarella trifoliata var. unifoliata D. Myrick 1964-7-26 979 Humboldt Redwood Hwy 101 near Garberville 152 Comment
  UC180222  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt near Seidell Ranch (peat bog); Bald Mountain, between High Prairie and Snow Camp Comment
  HSC64854  Tolmiea diplomenziesii J. P. Smith 1973-5-26 6854 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCR3543  Torilis arvensis David Whistler, H. M. Whistler 1964-7-29 640729- 3 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  UC165853  Tracyina rostrata Joseph P. Tracy 1903-5-23 1892 Humboldt Alder Point Northern Coast Ranges 243 Comment
  UCD136879  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  HSC56957  Triantha occidentalis subsp. occidentalis Overton, Butler 1979-7-23 9470 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  SEINET8999565 Image available Trichostema oblongum Unknown 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek Comment
  HSC97554  Trientalis borealis subsp. latifolia Cara Witte 2007-6-1 168 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  CHSC84526  Trifolium arvense John Dittes; Josephine Guardino 2003-6-7 2003 -65 Humboldt Klamath Range; ca. 7.7 air-mile southwest of Orleans, ca. 4.1 air-miles northeast of confluence of Trinity River and Klamath River, ca. 0.3, air-mile northwest of confluence of Klamath River and Aikens Creek. Along entrance road to Aikens Creek Campground. 106 Comment
  UC33445  Trifolium barbigerum Joseph Burtt Davy and Walter C. Blasdale 1899-5 5684 Humboldt Hoopa Mtn Comment
  UC1197059  Trifolium bifidum var. decipiens Joseph P. Tracy 1925-8-9 7226 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC1223500  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek (Larrabee Creek (Harris Trip)); Alder Point Comment
  UC162857  Trifolium cyathiferum Joseph P. Tracy 1908-6 2827 Humboldt nw slope Buck Mtn; Northern Coast Ranges 1219 Comment
  HSC15116  Trifolium dubium Harvey Doerksen 1962-5-8 18 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  POM313548  Trifolium dubium P. B. Kennedy 1929-6-12 10323 Humboldt Eureka. Comment
  HSC71441  Trifolium fucatum J. P. Smith 1971-10-9 5044 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS65883  Trifolium fucatum W. L. Jepson 1934-5-8 16718 Humboldt n Redway (South Fork Eel River) Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  RSA168896  Trifolium fucatum var. fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge, one mil east of Cape Mendocino. 152 Comment
  HSC38085  Trifolium gracilentum Thomas W. Nelson, James Nelson 1976-5-30 2606 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC27563  Trifolium incarnatum J. P. Smith, J. O. Sawyer, Thomas W. Nelson 1972-4-22 Humboldt Freeway Exit at Benbow Comment
  UCSB28369  Trifolium incarnatum Phelps, M. 1972-3-22 Humboldt 20 yds. north of south Garberville Exit, Hwy. 101 213 Comment
  HSC75475  Trifolium longipes J. O. Sawyer 1980-7-18 3622 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC33425  Trifolium longipes var. elmeri Chesnut and Drew 1888-8-1 Humboldt S. Fork of Trinity Comment
  UC1197210  Trifolium longipes var. hansenii Joseph P. Tracy 1913-6-23 4282 Humboldt near summit of ridge (betw Van Duzen and Mad Rivers, Dinsmore's ranch); Northern Coast Ranges 1066 Comment
  UC495660  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Ranges, Trinidad 15 Comment
  HSC39714  Trifolium microcephalum D. E. Anderson, J. P. Smith 1971-6-28 - 1264 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  RSA168856  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt Samoa Sand dunes Comment
  SEINET6935126  Trifolium microdon Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  SEINET4178477 Image available Trifolium oreganum Unknown 1927-6-12 8122 Humboldt Horse Mountain 1524 Comment
  SBBG67249  Trifolium pratense R. Hartwell 1938-8-6 Humboldt near Eureka Comment
  UC1223329  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt near Blue Lake (along Mad River) 15 Comment
  UC16702  Trifolium pratense Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5535 Humboldt near Scotia Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC198572  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UC303195  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6274 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA249526  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-9 35303 Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC451807  Triglochin maritima W. R. Dudley 1899-6-1 s.n. Humboldt Below Samoa--Eureka Penn. [Peninsula] Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. Comment
  CHSC96700  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt State Highway 101, mile marker 61.40. Ditch on east side of highway. UTM zone 10, 4519N, 406 E. 2 Comment
  HSC101809  Trillium albidum Kjirsten A. Wayman 2012-4-6 307 Humboldt Martin's Ferry Road, northwest of Weitchpec, near mile marker 32, east side of road 137 Comment
  HSC15715  Trillium albidum D. W. Snell 1964-4-18 46 Humboldt Mad River bottom 3 mi. N of Blue Lake Comment
  HSC28003  Trillium albidum Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  UC902042  Trillium angustipetalum Joseph P. Tracy 1949-6-25 18350 Humboldt near Box Camp Trinity Summit 1524 Comment
  UC1197817  Trillium ovatum Joseph P. Tracy 1932-7-16 10632 Humboldt woods near Corral Prairie Corral Prairie; Trinity Summit 1584 Comment
  HSC34635  Trillium ovatum Robert M. Specht 1975-4-9 125 Humboldt W of Seawood Drive exit of Hwy. 101, N of Trinidad Comment
  HSC34646  Trillium ovatum Peter R. Leinau 1975-4-5 1 Humboldt Block 11 of the Union St. addition to the city of Arcata, 1640 Union St. Comment
  SEINET5722160 Image available Trillium ovatum David G. Forbes 1966-1 436 Humboldt 0.5 mile south of Weott on the Highway of the Giants.; Weott 30 Comment
  UC176190  Trillium ovatum Joseph P. Tracy 1913-4-13 4034 Humboldt at Eureka Eureka; Northern Coast Region 0 Comment
  RSA298972  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie, and Bull Creek road, to Dyerville, South Fork Eel River. Comment
  SEINET10458968  Triodanis biflora Chesnut CHESNUT s.n. Humboldt KNEELAND, CAMPBELLS Comment
  UC1198039  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1904-4-24 2019 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  HSC20849  Triphysaria eriantha subsp. eriantha B. Francis 1964-5-19 45 Humboldt 0.5 mi. S of Fairhaven Comment
  HSC20851  Triphysaria eriantha subsp. eriantha R. T. Forester 1963-3-2 26 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC199621  Trisetum canescens L. R. Abrams 1918-6-16 7142 Humboldt Willow Creek Comment
  HSC98871  Trisetum canescens Cara Witte 2007-7-8 443 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  HSC13121  Trisetum cernuum R. H. Berg 1963-5-1 60 Humboldt Arcata, H.S.U. campus. Comment
  HSC13417  Trisetum cernuum D. J. Wilder 1965-5-15 35 Humboldt 2 mi. E of Freshwater on Road to Kneeland Comment
  HSC13424  Trisetum cernuum E. W. Styskel 1964-5-8 84 Humboldt 2 mi. W of Rio Dell off Blue Slide Rd. Comment
  HSC32517  Trisetum cernuum D. E. Anderson, S. Dowty, T. Nelson 1972-6-17 5711 Humboldt McKeown Ranch, N of Dinsmore Comment
  UCD93903  Trisetum cernuum P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. By road through red woods off highway. Comment
  HSC98615  Triteleia hyacinthina Cara Witte 2008-8-6 1011 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC15024  Triteleia hyacinthina Joseph Burtt Davy 1899-6-13 5491 Humboldt Camp Grant to Pepperwood Comment
  HSC38485  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-18 - 1065 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  CAS-BOT-BC526349  Triteleia laxa Ira L. Wiggins 1932-6-18 5876 Humboldt Mouth of Little River Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  SBBG83394  Tsuga heterophylla R. Gankin 1965-8-7 563 Humboldt just N of parking area; Big Lagoon County Park Comment
  CAS-BOT-BC213075  Ulex europaeus Doris K. Kildale 1925-12-27 1448 Humboldt Kneeland Prairie road near junction with old road 609 Comment
  HSC62939  Umbellularia californica Michael Dalke 1979-4-14 54 Humboldt Richardson Grove State Park, Hwy. 101 152 Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  HSC60134  Urtica dioica subsp. gracilis M. A. Baker 1977-5-1 277 Humboldt E of Humboldt State University. Comment
  HSC89472  Urtica dioica subsp. gracilis P. A. Daly 1986-3-12 95 Humboldt Trinidad Head, along trail 61 Comment
  UCSB25251  Urtica dioica subsp. gracilis Tracy, Joseph 1927-3-6 Humboldt Elk River 30 Comment
  HSC59491  Utricularia macrorhiza M. A. Ericksen 1979-4-24 217 Humboldt Behind Fieldbrook School, in Fieldbrook Comment
  UC22197  Vaccinium membranaceum J. Burtt Davy 1899-6-21 5759 Humboldt Trinity Summit North Coast Ranges 1524 Comment
  HSC47491  Vaccinium ovatum Sheila Logan 1978-4-9 15 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC59436  Vaccinium ovatum Kenneth Clark 1979-3-31 19 Humboldt 0.1 mi. E of end of Granite Ave, Arcata 30 Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  UC1197768  Vaccinium ovatum Joseph P. Tracy 1918-5-5 4919 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC630486  Vaccinium ovatum H. E. and S. T. Parks Apr 1937 5638 Humboldt Spruce Cove Trinidad Comment
  SEINET7271898  Vaccinium ovatum R. K. Beattie 1920-9-22 5960 Humboldt Strong's Station on Van Duzen Fork of Eel River Comment
  CAS-BOT-BC199409  Vaccinium parvifolium C. H. M. 1920-8-29 s.n. Humboldt Lower Eel River, near Pepperwood Comment
  CAS-BOT-BC199410  Vaccinium parvifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC199412  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata 152 Comment
  UC484034  Vaccinium parvifolium C. B. Wolf 1930-10-26 Humboldt Along the Redwood Highway, 3 mi south of Del Norte County line 152 Comment
  UC503042  Vancouveria hexandra Joseph P. Tracy 1927-6-19 8196 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UCR123962  Vancouveria hexandra George K. Helmkamp, E. A. Helmkamp 2001-7-8 6968 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
  HSC49387  Vancouveria hexandra R. York 1979-4-9 213 Humboldt Behind Humboldt State University Comment
  HSC30401  Vancouveria planipetala J. D. Ackerman, A. M. Montalvo 1974-7-17 377 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville Comment
  UCSB23564  Vancouveria planipetala Keefe, Joseph 1967-7-8 Humboldt Redwood Forest, Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  UC1173640  Veratrum californicum var. californicum Joseph P. Tracy 1936-6-28 15011 Humboldt near Murphy Meadows; Bald Mountain 975 Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC57040  Veratrum insolitum Overton, Butler 1979-7-24 9680 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC58115  Veratrum viride G. L. Clifton, Griswold 1979-8-1 12074 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC67839  Verbena lasiostachys J. P. Smith 1971-10-9 5027 Humboldt Mad River above the Fish Hatchery. Comment
  HSC99387  Veronica americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 36 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA246672  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  CDA6482  Veronica filiformis E. C. Whitney 1966-2-11 Humboldt 409 11th Street, Eureka. 0 Comment
  HSC55315  Veronica peregrina subsp. xalapensis Terry Griswold, Marvin Butler 1979-7-11 7053 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC11992  Veronica persica D. La Conte 1970-10-11 26 Humboldt Ploughed area Comment
  HSC31792  Veronica serpyllifolia subsp. humifusa Donald Spalinger 1974-4-20 19 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC40041  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-7-1 2893 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC180235  Vicia americana var. americana Joseph P. Tracy 1914-5-30 4482 Humboldt near Hydesville; Northern Coast Ranges 30 Comment
  UC709402  Vicia americana var. americana Joseph P. Tracy 1939-4-29 16253 Humboldt Orleans 121 Comment
  UC33398  Vicia americana var. americana W. C. Blasdale 1896-6-7 Humboldt Graham's Comment
  HSC100541  Vicia americana var. linearis Carl C. Marshall May 1886 216 Humboldt Everywhere, Humboldt Bay. Comment
  CHSC68556  Vicia hirsuta Vernon H. Oswald 1997-4-29 8352 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  HSC90266  Vicia sativa subsp. nigra Jean Hanson 1980-5-24 66 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  HSC49921  Vinca major Maralyn O'Meara 1973-2-9 126 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  CAS-BOT-BC263954  Viola adunca W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula Comment
  CAS-BOT-BC263953  Viola adunca V. Rattan 1882-6-1 s.n. Humboldt Kneeland RIver Comment
  POM98595  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt Coast Range, back of Orick. 1067 Comment
  HSC38515  Viola cuneata D. E. Anderson, J. P. Smith 1971-6-18 - 1085 Humboldt Horse Mtn. Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  HSC21799  Viola glabella D. E. Anderson 1965-5-15 3688 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC73155  Viola glabella M. A. Baker 1980-5-18 1299 Humboldt Near Black Mtn. 1006 Comment
  UC183623  Viola glabella Joseph P. Tracy 1913-3-9 4018 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC21783  Viola glabella Francis Winter 1960-4-23 Humboldt Simpson Creek, Korbel-Maple Creek Rd. 244 Comment
  UC1762124  Viola glabella Milo S. Baker 1926-7 145 -26 Humboldt S. Fork Mt., 5 mi from hwy Comment
  CHSC97987  Viola hallii J. Breton; A. Livingston 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. south of Hwy 299 on NF1. 1357 Comment
  RSA12564  Viola macloskeyi Carl B. Wolf 1934-7-2 5875 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  POM286592  Viola ocellata Lyman D. Benson 1929-7-16 1841 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC270151  Viola palustris H. E. Parks; Joseph P. Tracy 1927-4-23 7919 Humboldt Big Lagoon, in bog 3 Comment
  CHSC94931  Viola sempervirens K. Lang; J. Lang 2005-3-16 50 Humboldt Trinidad, N. California coast. 51 Comment
  HSC89434  Viola sempervirens P. A. Daly 1984-5-8 10 Humboldt Trinidad Head 61 Comment
  HSC95737  Viola sempervirens Steven Lee 2004-2-18 1 Humboldt Arcata Community Forest, Jolly Giant Creek; 5-20 ft. from water's edge Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  UC668241  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC9830  Vulpia bromoides T. L. Ackerman 1964-4-10 30 Humboldt At Turner Draw on U.S. 101, near Mad River. Comment
  POM183574  Vulpia bromoides R. I. Bonn 1965-5-7 21 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  UC1103720  Vulpia microstachys var. microstachys Joseph P. Tracy 1926-5-2 7441 1/2 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1145196  Vulpia microstachys var. pauciflora Joseph P. Tracy 1939-4-29 16247 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  CAS-BOT-BC184731  Vulpia myuros subsp. megalura Joseph P. Tracy 1933-6-13 12598 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  SEINET10609151  Vulpia myuros var. myuros Joseph P. Tracy 1914-5-14 Tracy 4432 Humboldt Fort Seward. 122 Comment
  HSC103290  Whipplea modesta Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest; ~ 1.75 mi. south of Hwy. 299 on Titlow Hill Road; ~ 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 979 Comment
  HSC20445  Whipplea modesta John A. Dubois 1962-5-12 5 Humboldt 20 mi. E of Arcata Comment
  HSC81925  Whipplea modesta Thomas W. Nelson, Jane P. Nelson 1979-7-3 4954 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  UC175391  Wyethia angustifolia Joseph P. Tracy 1913-6-10 4079 Humboldt bluff near Bucksport; Northern Coast Ranges, Eureka 0 Comment
  UC1223304  Wyethia angustifolia Joseph P. Tracy 1950-8-8 19277 Humboldt in lower prairies Trinity Summit, Croghan Hole 1676 Comment
  UC36765  Wyethia angustifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5726 Humboldt Supply Creek Hoopa Valley, Supply Creek (Hoopa Valley, north-western California) Comment
  JEPS109808  Wyethia longicaulis Dean W. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  UC1199227  Xanthium strumarium Joseph P. Tracy 1921-12-11 5982 Humboldt Alton Northern Coast Ranges, Eel River 30 Comment
  HSC74331  Xerophyllum tenax Gail Newton 1980-6-16 147 Humboldt Near Monks Camp 1097 Comment
  RSA246843  Xerophyllum tenax Robert F. Thorne, Percy C. Everett 1965-8-5 35144 Humboldt King Mountain 1220 Comment
  SD51273  Xerophyllum tenax Darley F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick, on Bald Mountain Road. Comment
  HSC15777  Zigadenus fremontii J. Wendell Howe 1930-3-30 78 Humboldt Diamond Canyon, presumed Humboldt Co. but not stated Comment
  HSC73063  Zigadenus micranthus M. A. Baker 1980-6-16 1959 Humboldt Near Onion Mtn. 1280 Comment
  RSA684208  Zostera marina R. Setzer 1972-7-29 6992 Humboldt Buhne Point; Humboldt Bay near Eureka. 0 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
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