Search Results — 2000 specimen records retrieved (1358 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55100  Abies concolor G. L. Clifton 1979-7-31 11814 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC72799  Abies concolor Gail Newton 1980-6-17 213 Humboldt Near Onion Mtn. 1341 Comment
  HSC72979  Abies concolor Gail Newton 1980-7-14 1514 Humboldt Near Deadman Ridge 1097 Comment
  OBI36537  Abies concolor David J. Keil 1983-7-2 17317 Humboldt Ca. 4 mi SE ofSR 299 along Titlow Hill rd below Horse Mt summit rd Comment
  SEINET200991  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC78055  Abies grandis Thomas Nelson; Jane Nelson 1979-9-10 5064 Humboldt Along old logging road, south of Lundbar Hills section of Eureka 48 Comment
  CDA19007  Abies grandis Lubinski 2000-10-5 PDR P 070106 Humboldt North Coast Ranges; along U.S.F.S Rd 1, in the vicinity of Blue Lake. 0 Comment
  UC1134161  Abies grandis G. T. Nordstrom 1937-7-1 1420 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  HSC55034  Abies procera Overton, Butler 1979-7-31 11480 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC23109  Abronia latifolia Norman Dennis 1965-6-8 106 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  RSA15561  Abronia latifolia Carl B. Wolf 1927-8-29 1211 Humboldt Devils Gate, S of Cape Mendocino Comment
  HSC16133  Abronia latifolia J. W. Johnson 1961-8-17 1050 Humboldt Arcata, ridge 8, Lanphere Farm, Samoa Peninsula Comment
  UC502961  Acer circinatum Joseph P. Tracy 1928-5-6 8427 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  SEINET200861 Image available Acer glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt North Coast Ranges, Grouse Mountain 1520 Comment
  HSC24376  Achillea millefolium J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC58134  Achillea millefolium Muth 1979-8-1 12141 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC68195  Achillea millefolium J. P. Smith 1971-10-6 4976 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC89501  Achillea millefolium M. Roantree 1985-6-10 80 Humboldt East side of Trinidad Head Comment
  RSA50430  Achillea millefolium var. arenicola G. R. Campbell 1949-6-28 s.n. Humboldt Collected near pool on Administration Grounds of Botanic Gardens, grown under prop. No. 5487 (seed collected by P. C. Everett, July 20, 1947, on coastal sand dunes, mouth of little river, along hwy 101, north of Eureka) Comment
  CAS-BOT-BC400018  Achlys triphylla Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC400022  Achlys triphylla Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta Comment
  HSC56973  Achlys triphylla Overton, Butler 1979-7-23 9506 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CAS-BOT-BC400021  Achlys triphylla W. R. Dudley 1899-6-18 s.n. Humboldt Near grade descending to Eel River Comment
  HSC99382  Achlys triphylla subsp. triphylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 31 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103144  Achnatherum lemmonii J. P. Tracy 1903-5-23 1905 Humboldt Alder Point Eel River 91 Comment
  UC526753  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC526667  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-17 10667 Humboldt ridges e Corral Prairie; Klamath Mountains 1828 Comment
  HSC71610  Acmispon micranthus J. P. Smith, Steve Selva 1970-6-14 3845 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC98302  Acmispon micranthus Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  RSA168919  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt NE side of top of Grouse Mtn Comment
  HSC55739  Actaea rubra G. L. Clifton, Griswold 1979-7-26 10241 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC58181  Adenocaulon bicolor G. L. Clifton, Griswold 1979-8-2 12269 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC58316  Adenocaulon bicolor Overton, Butler 1979-8-2 12604 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  BLMAR214  Adenocaulon bicolor Jennifer Anthony-Wheeler 1996-7-9 214 Humboldt Pilot ridge., growing in shady woods 1310 Comment
  HSC100421  Adenocaulon bicolor Carl C. Marshall Jul 1886 351 Humboldt Xavier's Place, Bald Hills. Comment
  UC62739  Adiantum aleuticum P. E. Goddard 1901-7-12 74 Humboldt Hupa Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  UC62716  Adiantum aleuticum Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5455 Humboldt near Camp Grant Comment
  CAS-BOT-BC65554  Adiantum capillus-veneris W. R. Dudley 1903-8-1 s.n. Humboldt Hot Springs (probably near Calif. Redwood Park) Comment
  UC503063  Adiantum jordanii Joseph P. Tracy 1932-4-24 9812 Humboldt between Miranda and Redway (S Fork Eel River); North Coast Ranges 91 Comment
  CAS-BOT-BC65623  Adiantum jordanii Donald Branscomb 1959-9-1 s.n. Humboldt About 1 mile north of Garberville 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
  RSA0009548  Aesculus californica Marcus E. Jones 1931-7-12 28938 Humboldt Alton. Comment
  HSC76197  Agastache urticifolia Overton, Butler 1979-8-2 12510 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC98730  Agastache urticifolia Cara Witte 2007-7-20 553 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC57003  Agoseris grandiflora Overton, Butler 1979-7-24 9589 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET11854998  Agoseris grandiflora J. P. Tracy 1942-1 17276 Humboldt Garberville. North end of town Comment
  UCD128595  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt north end of town, Garberville. Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC15348  Agoseris heterophylla J. P. Tracy 1906-5-13 2455 Humboldt Sand hills of Ocean Beach at Samoa, opp. Eureka Comment
  UC1199475  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7021 D Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  UC165756  Agoseris heterophylla var. heterophylla J. P. Tracy 1903-5-22 1875 A Humboldt on grassy hills Alder Point 152 Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  UC526888  Agrostis alba Joseph P. Tracy 1932-8-21 10363 Humboldt foothills Chaparral Mountain (Three Cabins); North Coast Ranges, foothills Chaparral Mountain 457 Comment
  RSA87118  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon Comment
  CAS-BOT-BC127277  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Northern Coast Region. Eureka. 60 Comment
  UC1103374  Agrostis exarata J. P. Tracy 1900-7-22 898 Humboldt vicinity Eureka 0 Comment
  UC1103388  Agrostis exarata J. P. Tracy 1901-6-23 1180 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC139697  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills on Chaparral Mountain. 457 Comment
  UC1103524  Agrostis hallii J. P. Tracy 1912-7-23 3803 Humboldt about 5 mi above mouth South Fork Eel River 60 Comment
  UC526884  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt French Camp Northern Coast Ranges 1066 Comment
  UC1152035  Agrostis microphylla Joseph P. Tracy 1951-6-21 19532 Humboldt bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); bed of former Goose Lake, Everett Beck house on ranch, Hydes Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  RSA10067  Agrostis stolonifera Joseph P. Tracy 1924-8-17 6819 Humboldt Trinidad 61 Comment
  UC33728  Agrostis stolonifera Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6203 Humboldt Russ Ranch Comment
  HSC8863  Aira caryophyllea Robert Wunner 1962-5-5 Humboldt Denny Forest Service campground Comment
  RSA256715  Aira caryophyllea L. Hall 1975-5-24 379 Humboldt Samoa Dunes; coastal strand. Dunes off Samoa Blvd. across from the boat landing Comment
  UC630529  Aira caryophyllea H. E. and S. T. Parks June, 1936 5850 Humboldt Spruce Cove Trinidad Comment
  SEINET11683267  Aira caryophyllea K. S. Erdman 1970-1 4787 Humboldt Doleson hill Prairie, Bald Hills Rd, SE of Orick 853 Comment
  HSC90692  Aira praecox Gail Newton 1982-5-5 3558 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1103296  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  JEPS15036  Allium bolanderi Harley P. Chandler June, 1901 1434 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  HSC98522  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 435 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  UC1198192  Allium campanulatum Joseph P. Tracy 1908-6 2807 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC38518  Allium falcifolium D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  HSC67188  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5424 Humboldt Along NE side of Red Mtn. 1433 Comment
  CAS-BOT-BC135845  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-27 5947 Humboldt Humboldt-Trinity County line. Along low ridge northeast of small vernal pond at north base of Red Lassic - Six Rivers National Forest 1676 Comment
  CAS-BOT-BC135846  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road - Six Rivers National Forest 1371 Comment
  UC15002  Allium unifolium Joseph Burtt Davy 1899-6-11 5444 Humboldt between Hubbard's Station and Elk Prairie Comment
  CAS-BOT-BC476626  Allium unifolium A. M. Vollmer; L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road Comment
  HSC100547  Allium validum Carl C. Marshall May 1886 233 Humboldt Wood's Pasture near Arcata. Comment
  UC275562  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt Northern Coast Ranges, North Dobbyn Creek North Dobbyn Creek; Northern Coast Ranges, North Dobbyn Creek 152 Comment
  UC503096  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant Northern Coast Ranges, Eel River (along river) 60 Comment
  CAS-BOT-BC169541  Alnus rubra Carl B. Wolf 1930-10-26 1767 Humboldt SO edge of Bog Lagoon, near Redwood Highway Bridge 9 Comment
  RSA1807  Alnus rubra C. B. Wolf 1930-10-26 1767 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  UC176169  Alnus rubra Joseph P. Tracy 1913-9-9 4392 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC1152033  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt back of Everett Beck house (formerly Geroge Fray), bed of former Goose Lake Hydesville Comment
  HSC8903  Alopecurus pratensis R. H. Berg 1963-4-11 24 Humboldt Arcata Bottoms, 2 mi. W of Arcata Comment
  UC673032  Amaranthus albus Joseph P. Tracy 1940-10-15 16756 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA28766  Ambrosia chamissonis var. chamissonis H. E. Parks 1941-09 24214 Humboldt Mouth of Little River Comment
  HSC96014  Amelanchier pallida Juha Pykala, D. H. Norris 1987-5-19 708 Humboldt Horse Mtn. Rd. at intersection of rd. to ski lift 1400 Comment
  CAS-BOT-BC143015  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt Carlotta, open flat by old Strong's District School House, 5 miles east of town. 60 Comment
  CAS-BOT-BC143016  Amelanchier utahensis Doris K. Kildale 1928-4-29 5959 Humboldt Redwood Creek at Berry's Comment
  HSC3519  Amsinckia intermedia J. W. Johnson 1962-4-21 1286 Humboldt Arcata; William Lanphere Farm about building Comment
  RSA0090987  Amsinckia intermedia H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  POM286830  Anagallis arvensis Lyman Benson 1929-7-19 1585 Humboldt Weet Ranger St. Comment
  UCD117538  Anagallis arvensis Malcolm A. Nobs; S. Galen Smith 1949-8-11 1342 Humboldt eastern shore of Stone Lagoon. Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  HSC57007  Anaphalis margaritacea Overton, Butler 1979-7-24 9594 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET10904828  Anaphalis margaritacea Mary Susan Taylor 1977-8-2 Taylor 1427 Humboldt In mountains above and east of Eureka. Comment
  CAS-BOT-BC391781  Anemone deltoidea V. Rattan 1882-6-1 s.n. Humboldt To Kneeland Prairie Comment
  HSC18009  Anemone deltoidea H. E. Parks, S. T. Parks May 1930 748 Humboldt Along Van Duzen River Comment
  HSC44526  Anemone deltoidea Brad Klipfel 1973-7-1 134 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196190  Anemone oregana Joseph P. Tracy 1901-4-26 1042 Humboldt n slope Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  HSC44403  Anemone oregana var. oregana R. York 1978-5-6 155 Humboldt Around Onion Lake on Bluff Creek Rd. 1220 Comment
  HSC56311  Angelica arguta Overton, Butler 1979-8-2 12641 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC673053  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  UC1197379  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  UC562549  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt Cape Mendocino, south of point of the Cape Cape Mendocino 3 Comment
  UC582634  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC126727  Angelica lucida John Matthiesen 1908-8-17 Humboldt Loleta Comment
  UC154048  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  HSC98705  Angelica tomentosa Cara Witte 2007-7-26 600 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1366 Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  HSC82122  Antennaria microphylla Thomas W. Nelson 1979-7-11 4998 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC56962  Antennaria suffrutescens Overton, Butler 1979-7-23 9477 Humboldt Near Horse Mountain Creek, close to the town of Willow Creek 1317 Comment
  JEPS13179  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  UC302185  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain 1524 Comment
  UC582650  Antennaria suffrutescens Joseph P. Tracy 1933-7-11 12673 Humboldt Horse Mountain 1432 Comment
  HSC38792  Anthemis cotula J. D. Ackerman 1975-8-31 655 Humboldt Lanphere Rd. near Mad River Slough, Arcata Bottoms 2 Comment
  HSC10094  Anthoxanthum occidentale J. W. Johnson 1962-3-14 1120 Humboldt Arcata, Lanphere Farm, Samoa Peninsula, woods at the side of Miller Ln. Comment
  HSC10098  Anthoxanthum occidentale D. E. Anderson 1962-5-10 2205 Humboldt Lanphere Ranch Comment
  HSC8937  Anthoxanthum odoratum S. R. Johnson 1965-4-16 37 Humboldt 1 mi. N of Luffenholtz Beach Comment
  RSA129296  Anthoxanthum odoratum H. S. Yates 1936-6-23 5853 Humboldt 2 miles E. of mouth of Mad River. 30 Comment
  SEINET3918444  Anthoxanthum odoratum H. E. Parks, S. T. Parks 1952-1 24444 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  UC526831  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, 1066 Comment
Read comments
Jul 18 2012
  UCD56165  Anthoxanthum odoratum A. H. Murphy 1948-5-3 s.n. Humboldt 1.5 mile north of Loleta, Table Bluff, H. Perrott's Ranch. Comment
  RSA33406  Antirrhinum vexillocalyculatum subsp. breweri Doris K. Kildale 1928-10-19 6953 Humboldt Miranda. Comment
  SBBG83248  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Rd, 9.1 mi S of jct with Mtn View Rd Comment
  UC1196739  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1946-11-17 17665 Humboldt Eel River at mouth of Van Duzen River; Eel River 18 Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  UC154129  Aphanes occidentalis J. P. Tracy 1904-4-24 2033 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC1400213  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt in the city of Arcata Arcata Comment
  RSA43832  Apocynum androsaemifolium subsp. pumilum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  HSC39042  Arabis breweri var. breweri Thomas W. Nelson, Jane P. Nelson 1976-5-31 2659 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC32848  Arabis glabra Thomas W. Nelson, James Nelson 1973-5-28 944 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC56440  Arabis glabra Griswold, Butler 1979-7-12 7172 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC73687  Arabis glabra M. A. Baker 1980-7-15 2980 Humboldt Near Whiting Ridge. 1341 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  UC902020  Arabis subpinnatifida Joseph P. Tracy 1949-7-19 18389 Humboldt Grouse Mountain 1584 Comment
  HSC30336  Arbutus menziesii Dale R. Gradek 1974-5-22 92 Humboldt 1 mi. E of Hwy. 101 on North Bank Rd. 30 Comment
  HSC7599  Arbutus menziesii Francis Winter 1960-4-24 Humboldt 4 mi. E of Blue Lake, Hwy. 299 305 Comment
  POM118486  Arbutus menziesii Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  SEINET11984830  Arctostaphylos canescens Unknown 1965-1 540 Humboldt on USAL Road, 23 mi N of junction with CA 1 & 2.7 mi S of junction of Four Corners Comment
  CAS-BOT-BC23757  Arctostaphylos columbiana Alice Eastwood 1907-4-21 12 Humboldt Trinidad Comment
  CAS-BOT-BC23760  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1326 Humboldt Patrick's Point Comment
  CAS-BOT-BC23778  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-26 23975 Humboldt 4 mi. SE from Honeydew, along Old Coast road to Ettersburg. 457 Comment
  CAS-BOT-BC23784  Arctostaphylos columbiana Doris K. Kildale 1929-7-1 5310 Humboldt French Camp on Orick-Martins Ferry road Comment
  JEPS38945  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  JEPS38962  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt near summit Hoopa Mountain (ridge 1 mi s of road from Hoopa to Bair's) 1219 Comment
  RSA622683  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27815 Humboldt Highway 299, east of Lord Ellis Summit, east of Eureka. 700 Comment
  RSA622685  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27786 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA622689  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27672 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  RSA622694  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27668 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1174844  Arctostaphylos columbiana P. C. Everett and E. K. Balls 1959-10-26 23975 Humboldt 4 mi se from Honeydew (along old Coast Road to Ettersburg) 457 Comment
  UC1198652  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6143 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  CAS-BOT-BC23736  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  RSA152311  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff. 91 Comment
  UC1120179  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1931-5-19 200 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  RSA633018  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27810 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  JEPS38983  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 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
  SEINET11989136  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1982-1 4517 Humboldt Tilden Botanic Garden, Berkeley, orig. from French Camp on road between Orick & Wichepec Comment
  CAS-BOT-BC46632  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain. 1432 Comment
  CAS-BOT-BC46633  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain. 1432 Comment
  HSC7703  Arctostaphylos patula J. Pursell 1964-11-1 1112 Humboldt 3 mi. S of Hoopa on Hwy. 96 Comment
  UC32689  Arctostaphylos patula J. Burtt Davy 1899-6-21 5752 Humboldt slopes of Trinity Summit North Coast Ranges 1219 Comment
  CAS-BOT-BC43996  Arctostaphylos uva-ursi Doris K. Kildale 1928-8-10 6264 Humboldt Samoa peninsula Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  CAS-BOT-BC47213  Arctostaphylos uva-ursi Doris K Niles 1951-5-1 12 Humboldt Table Bluff Hill, Redwood Highway approximately 1 mi. n. of Loleta. Comment
  SD117461  Arctostaphylos uva-ursi Robert F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes Comment
  UC1225933  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  UC1225935  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  UCD52047  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1147 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA246678  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  SEINET11987494  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4213 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa Comment
  RSA636989  Arctostaphylos viscida subsp. viscida Jon E. Keeley 1996-10-13 27788 Humboldt Bald Hills Road, eastern end of Redwood National Park, 223 km W of Hwy 96, N of Eureka. 600 Comment
  OBI75994  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Crk 152 Comment
  HSC16900  Armeria maritima subsp. californica M. T. Morse 1966-4-9 9 Humboldt 0.5 mi. N of Samoa Pulp Mill. Comment
  UCR39802  Armeria maritima subsp. californica Kenneth Clark 1981-5-24 1391 Humboldt North Coast, Abalone Point, 'Point Delgada Q. 15 Comment
  HSC100712  Arnica amplexicaulis Carl C. Marshall Jun 1886 273 Humboldt Trail E of Hoopa. Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  JEPS20972  Arnica discoidea Harley P. Chandler 1901-6-1 1400 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  SEINET200928  Arrhenatherum elatius J. P. Tracy 1919-8-28 5184 Humboldt Eureka 0 Comment
  UC1103322  Arrhenatherum elatius Ellingwood 1946-11-1 Humboldt Arcata Bottom 12 Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  UCD56029  Arrhenatherum elatius Joseph P. Tracy 1950-6-15 18781 Humboldt 5 miles north of Harris. Near top of Mail Ridge. 1066 Comment
  HSC67028  Artemisia douglasiana J. P. Smith 1970-6-7 3811 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC98817  Artemisia douglasiana Cara Witte 2007-9-3 642 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  HSC4743  Artemisia pycnocephala Jerry Parker 1968-11-22 247 Humboldt Mckinleyville Beach, Foot of Murray Rd. Comment
  RSA15563  Artemisia pycnocephala C. B. Wolf 1927-8-29 1206 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  CDA10172  Artemisia pycnocephala T. C. Fuller 1961-9-28 7056 Humboldt 1.5 miles south of Samoa. 0 Comment
  JEPS103030  Artemisia suksdorfii R. Raiche, H. Forbes, A. C. Carmichael 1999-10-18 UCBG 24 Humboldt 18 miles NW of Honeydew on Mattole Rd., in sight of the ocean along the Mattole River 46 Comment
  UC1199378  Artemisia suksdorfii Joseph P. Tracy 1939-5-28 16309 Humboldt coast bluffs s Centerville 60 Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC1103508  Asarum caudatum Joseph P. Tracy 1913-3-30 4033 Humboldt Eureka Comment
  HSC47656  Asarum caudatum Sheila Logan 1978-4-10 181 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  HSC3273  Asarum hartwegii Doris K. Kildale 1926-5-2 1876 Humboldt Willow Creek Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA46489  Asclepias cordifolia Doris K. Kildale 1926-5-2 s.n. Humboldt Willow Creek Comment
  UC1222672  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt 1 mi n of mouth Willow Creek (e side of river); Trinity River Comment
  HSC1051  Aspidotis densa D. E. Anderson 1961-9-3 1777 Humboldt Comment
  HSC44046  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-1 3547 Humboldt On Ridge N of Bear Cr. 100 m W of Rd. 1S07 1555 Comment
  UCSB29324  Aspidotis densa Phelps, M. 1972-3-22 Humboldt Abundant on Cedar Flat, Elk Ridge 762 Comment
  RSA134590  Aster chilensis Percy C. Everett, E. K. Balls 1959-10-25 23960 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  RSA43677  Aster radulinus H. M. Pollard 1947-8-9 s.n. Humboldt South River Road, south of Orleans Comment
  JEPS16848  Astragalus agnicidus H. Tosten 1931-6-7 Humboldt Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. Comment
  UC302115  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC160968  Astragalus umbraticus Mrs. M. H. Manning 1901-7-27 306 Humboldt near Hupa (Hoopa) (Bald Hills); near Hupa (Hoopa), Bald Hills Comment
  HSC104349  Astragalus umbraticus James Regan, Humboldt Redwood Co., LLC 2004-1 12 Humboldt Bald Hills, Weitchpec Road Comment
  HSC55038  Athyrium filix-femina var. cyclosorum Gilbert Muth 1979-7-31 11498 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  JEPS70200  Athyrium filix-femina var. cyclosorum Robert J. Rodin 1969-8-18 8384 Humboldt along Redwood Creek near Orick Comment
  UC503067  Athyrium filix-femina var. cyclosorum H. E. Parks and Joseph P. Tracy 1930-9-13 9180 Humboldt Jacoby Creek; Northern Coast Ranges 121 Comment
  UC183765  Atriplex leucophylla Joseph P. Tracy 1913-11-19 4416 Humboldt Bayshore at Bucksport (region about Humboldt Bay, Northern Coast Region); Northern Coast Region, Humboldt, Bayshore at Bucksport 0 Comment
  HSC26349  Atriplex patula T. O. Osborne 1970-6-19 74 Humboldt Flat-Iron Rock, 3/4 mi. NW Trinidad Light. Comment
  RSA424567  Atriplex patula T. S. Elias, Barbara A. Elias 1987-8-26 10623 Humboldt Fernbridge Comment
  HSC95384  Atriplex prostrata Andrea Pickart 2002-8-8 191 Humboldt Arcata Marsh at end of I st. 0 Comment
  CAS-BOT-BC146202  Avena barbata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC9004  Avena barbata R. Spellenberg 1965-6-14 1124 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  HSC75513  Avena sativa J. O. Sawyer, R. J. Cole 1977-7-3 3002 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  SEINET946130  Baccharis douglasii J. P. Tracy 1938-1 16128 Humboldt Mouth of Little River 9 Comment
  CAS-BOT-BC98034  Baccharis pilularis L. B. Kildale 1930-8-3 10488 Humboldt Chaparral Mt. at Bug Creek Comment
  RSA46906  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Hill 30 Comment
  CHSC10152  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-9-4 1102 Humboldt In the hollow north of dune 3 north Christenson Farm, Samoa Peninsula. Comment
  RSA114084  Bensoniella oregona R. C. Bacigalupi, Constance, Trqacy, Moran, Rodriguez, Carlquist 1951-6-14 3410 Humboldt High Prairie, on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1067 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  HSC57110  Berberis nervosa Overton, Butler 1979-7-25 9851 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC57157  Berberis nervosa Overton, Butler 1979-7-26 9956 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  UC35055  Berberis nervosa Chestnut and Drew 1888-7-11 Humboldt Jarnigan's Comment
  JEPS58656  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC102532  Bistorta bistortoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1518 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC66275  Blechnum spicant L. R. Abrams 1916-7-18 6103 Humboldt Arcata to Trinidad Comment
  UC1063690  Blechnum spicant H. L. Person 1932-7-19 Humboldt Dolbier Carson Land Lindsay Creek; Eureka Quadrangle Comment
  UCSB51219  Blechnum spicant Almanza, Ed 1976-7-15 Humboldt Big Lagoon Cliffs, Big Lagoon. Comment
  CAS-BOT-BC15788  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. At Corral Prairie. 1524 Comment
  CAS-BOT-BC15801  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  JEPS53081  Boechera retrofracta H. P. Chandler Jun 1901 1511 Humboldt Klamath River Comment
  JEPS109416  Boechera subpinnatifida D. W. Taylor 2004-6-24 19131 Humboldt Horse Mountain, along Titlow Hill Road, 0.4 miles N from junction with the road to the mountain summit. Comment
  RSA167245  Boisduvalia densiflora Joseph P. Tracy 1950-6-18 18843 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  UC585961  Boschniakia strobilacea Joseph P. Tracy 1925-6-7 7059 Humboldt Northern Coast Ranges, Willow Creek Canyon. 609 Comment
  CAS-BOT-BC121304  Botrychium multifidum Peter F. Zika 2007-7-30 23318 Humboldt SW corner of Big Lagoon 2 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC96373  Botrychium multifidum Gordon Leppig 1999-10-3 1256 Humboldt Big Lagoon on NE corner of fen 3 Comment
  UC420420  Boykinia occidentalis Mrs. M. H. Manning 1901-4 55 Humboldt near Hupa; near Hupa Comment
  UC56717  Boykinia occidentalis Harley P. Chandler June, 1901 1311 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UCR104577  Brassica rapa A. R. Alexander 1998-4-9 8 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  HSC25983  Brickellia californica Thomas W. Nelson 1970-9-3 232 Humboldt Mad River. Comment
  HSC32526  Brickellia californica Thomas W. Nelson 1973-9-3 1135 Humboldt McKeown Ranch N of Dinsmore Comment
  LA202097  Brickellia californica S. K. Harris; C. M. Wilder 1938-9-8 877 Humboldt bars on Van Duzen River, below Blue Slide Comment
  HSC70984  Brickellia greenei Gail Newton 1980-7-22 1660 Humboldt Near Devils Backbone 1554 Comment
  SEINET9806296 Image available Briza maxima Unknown 2007-6-19 Humboldt Arcata, CA Comment
  CAS-BOT-BC145568  Briza minor Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC33759  Briza minor Margaret Weatherwax 1975-5-24 159 Humboldt Dunes off Samoa Blvd. across from boat landing Comment
  SEINET4183111 Image available Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton 30 Comment
  UC1197741  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-6-21 8776 Humboldt Larrabee Valley 731 Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  SEINET200765  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek 762 Comment
  UC527819  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1932-6-18 5877 Humboldt mouth of Little River Little River Comment
  UC666939  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi w Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  RSA167289  Bromus carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt Twin Lakes vicinity, Snow Camp and Twin Lakes trip. Comment
  CAS-BOT-BC149569  Bromus carinatus var. carinatus Joseph P. Tracy 1935-6-23 13982 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  HSC102646  Bromus carinatus var. carinatus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  BLMAR143  Bromus diandrus Donald Hazlett 1994-6-7 143 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  UC1131155  Bromus diandrus H. S. Yates 1936-6-17 5707 Humboldt lower nw slope of Buck Mountain Buck Mountain 792 Comment
  UC1714488  Bromus diandrus Joseph P. Tracy 1916-5-31 4702 Humboldt along Eel River from South Fork to Scotia, Stitz Creek Stitz Creek; Northern Coast Ranges, Eel River, Stitz Creek 60 Comment
  UC1607840  Bromus hordeaceus H. E. Parks June 1935 4996 Humboldt Trinidad District, Egg Point Egg Point; Trinidad District, Egg Point Comment
  CAS-BOT-BC162448  Bromus laevipes Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside south of Klamath River and east of Perch Creek, Orleans Region. Comment
  UC212890  Bromus tectorum Joseph P. Tracy 1919-5-31 5173 Humboldt Northern Coast Ranges, at mouth of Willow Creek, tributary of Trinity River Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  HSC39171  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 - 1231 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC72631  Bromus vulgaris J. P. Smith 1977-7-3 9252 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UCD60237  Bromus vulgaris P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek, to Arcata. Comment
  UC1191446  Cakile edentula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1337 Humboldt e shore of Stone Lagoon Stone Lagoon Comment
  HSC6609  Cakile maritima J. W. Johnson 1962-4-29 1299 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata Comment
  CAS-BOT-BC185314  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove. In the area of the Point. 1 Comment
  UCD56961  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near 'Panther Gap' on road between Mattole and Bull Creek. 822 Comment
  SEINET10901893 Image available Calamagrostis foliosa Henry N. Bolander 1866-1 Bolander 6470 Humboldt Mattole district Comment
  HSC58646  Calamagrostis koelerioides G. L. Clifton, Griswold 1979-7-31 11666 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC185185  Calamagrostis nutkaensis Catherine Best 1990-6-26 1398 Humboldt Growing near Nature Conservancy property on the road to the Table Bluff Light House northwest of Loleta. Comment
  HSC96469  Calamagrostis nutkaensis Gordon Leppig 1997-6-19 463 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS52599  Calandrinia ciliata Lincoln Constance 1934-6-19 912 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek Region (near summit) 914 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
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  UC667124  Calochortus amabilis Joseph P. Tracy 1927-5-30 8090 Humboldt Garberville 152 Comment
  UCD18587  Calochortus amabilis Roman Gankin 1956-3-17 107 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
Read comments
Feb 17 2006
  CHSC24838  Calochortus tolmiei A. D. Launer 1976-4-9 2 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC15385  Calochortus tolmiei D. E. Anderson 1965-5-1 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC73066  Calochortus tolmiei M. A. Baker 1980-6-16 1946 Humboldt Near Onion Mtn. 1280 Comment
  HSC99312  Calochortus tolmiei M. A. Baker 1980-6-7 1813 Humboldt Near Brush Mtn. 1128 Comment
  UC667128  Calochortus tolmiei Joseph P. Tracy 1933-7-11 12659 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  CAS-BOT-BC494354  Calochortus tolmiei Doris K. Kildale 1929-4-27 7451 Humboldt Willow Creek. Salya road, along Trinity River. 3 miles north of Willow Creek. Comment
  UC1222546  Calochortus vestae Joseph P. Tracy 1950-7-6 19004 Humboldt 2 mi s Burr Valley (on the Albee Raod) 1158 Comment
  CAS-BOT-BC273315  Calycadenia fremontii Henry M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar east side of Klamath River Comment
  CAS-BOT-BC273316  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  UC405439  Calycadenia fremontii Chesnut and Drew 1888-8-1 Humboldt Lionse Creek Comment
  UC1199384  Calycadenia truncata Joseph P. Tracy 1925-7-12 7201 Humboldt South Fork Trinity River near; Trinity River Valley 304 Comment
  CAS-BOT-BC275364  Calycadenia truncata var. truncata G. D. Carr 1974-9-12 784 Humboldt 5.3 miles SW of Somes Bar, 2.8 miles NE of Orleans on Highway 96 214 Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  SEINET12074107  Calypso bulbosa H. P. Chandler 1901-1 Humboldt Comment
  UC1197885  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1928-7-7 16028 Humboldt Horse Mountain 1432 Comment
  UC1197883  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1926-5-9 7454 Humboldt near Bridgeville; near Bridgeville 457 Comment
  HSC59560  Calystegia soldanella Rick Lundquist 1979-5-16 89 Humboldt N spit, across from the Samoa boat ramp N of US Coast Guard Station 0 Comment
  RSA244983  Calystegia soldanella R. E. Jones 1966-4-13 43 Humboldt Cape Mendocino 6 miles south of Cape. Comment
  UCD170801  Calystegia soldanella Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 747 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon. 2 Comment
  UC302169  Camassia quamash Joseph P. Tracy 1925-7-5 7179 1/2 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC66287  Camassia quamash subsp. linearis M. A. Baker 1980-6-8 1878 Humboldt Near Buck Flat. 1554 Comment
  HSC33058  Camassia quamash subsp. linearis Thomas W. Nelson 1974-5-7 1237 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  HSC64502  Camissonia cheiranthifolia J. P. Smith 1971-10-6 4944 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA246929  Camissonia cheiranthifolia subsp. cheiranthifolia Robert F. Thorne, Percy C. Everett 1965-8-5 35150 Humboldt Samoa Dunes. 3 Comment
  UCD103508  Camissoniopsis cheiranthifolia Linda M. Barker 1976-5-13 1492 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  CHSC1144  Camissoniopsis cheiranthifolia subsp. cheiranthifolia M. Underhill 1952-7-13 Humboldt Seashore. 0 Comment
  SEINET10462988  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt Willow Creek Comment
  SEINET10463306  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt REECE POINT NEAR ORLEANS Comment
  SEINET10463344  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt HOOPA VALLEY Comment
  SEINET10873263  Campanula prenanthoides Tracy 1927-8-14 TRACY 8330 Humboldt BIG LAGOON, DAMP BANKS IN FERN PRAIRIES 400 Comment
  SEINET10905895  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-30 Nelson 3662 Humboldt In dry oak woodland beside State Route 36 about 1 mile east of Dinsmore. T1N R5E SEC.3 732 Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  SEINET10463747  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt Near Titlow Hill, on the Willow Creek quadrangle, close to the town of Willow Creek 1280 Comment
  UC160970  Capsella bursa-pastoris Joseph P. Tracy 1911-5-21 3186 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC492266  Capsella bursa-pastoris Joseph P. Tracy 1932-7-16 10649 Humboldt Corral Prairie; Klamath Mountains, Corral Prairie 1524 Comment
  CAS-BOT-BC37424  Cardamine californica Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  HSC44273  Cardamine californica Barbara Kelly 1977-4-23 299 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground, between campsite and marsh 561 Comment
  HSC70563  Cardamine californica M. A. Baker 1980-7-19 3032 Humboldt Near Bret Hole. 1814 Comment
  UC1199188  Cardamine californica Joseph P. Tracy 1918-4-21 4878 Humboldt on road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 152 Comment
  UC1536942  Cardamine californica Gordon H. True Jr. 1936-2-26 328 Humboldt e Pepperwood (along Eel River); , e of Pepperwood 91 Comment
  UC162881  Cardamine californica J. P. Tracy 1905-3-12 2150 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  JEPS79885  Cardamine californica var. sinuata Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  HSC6645  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  CAS-BOT-BC37891  Cardamine oligosperma Doris K. Kildale 1927-3-20 2916 Humboldt Philipsville. Smith Fork of Eel River. Comment
  HSC100460  Cardamine paucisecta Carl C. Marshall Mar 1886 154 Humboldt Everywhere. Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  SD117463  Cardionema ramosissimum Robert F. Thorne 1974-7-29 45077 Humboldt Samoa dunes. Comment
  UC668108  Cardionema ramosissimum Joseph P. Tracy 1933-8-22 12993 Humboldt mouth of Eel R. 3 Comment
  UC1222956  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1947-6-8 17703 Humboldt vicinity of, 1/2 mi w of town Carlotta 30 Comment
  RSA32725  Carex aquatilis var. dives A. A. Heller 1930-8-4 s.n. Humboldt Little River. Comment
  UC562287  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  HSC96377  Carex arcta Gordon Leppig, Tony LaBanca 2005-9-21 2321 Humboldt Pacific Lumber Company land; Clark Mountain Fen, Headwaters of Root Creek on NW side of Clark Mountain. 400 Comment
  RSA167283  Carex athrostachya Joseph P. Tracy 1950-7-6 18990 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  RSA91675  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie. 1585 Comment
  UC1152075  Carex athrostachya Joseph P. Tracy 1950-7-31 19236 Humboldt edges of Muddy Lake on top of ridge of mountain Grouse Mountain, Muddy Lake 1524 Comment
  CAS-BOT-BC19213  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103620  Carex barbarae Joseph P. Tracy 1935-5-19 13808 Humboldt 2 mi N of Myers (South Fork of Eel River) 91 Comment
  UC562312  Carex barbarae Joseph P. Tracy 1929-6-23 8606 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC19436  Carex bolanderi Peter H. Raven; R. Snow 1958-7-20 13646 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  RSA246855  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 Humboldt Mt. Chamisal: below summit. 747 Comment
  UC195346  Carex bolanderi Joseph P. Tracy 1916-6-25 4747 Humboldt e Trinidad; Northern Coast Ranges, Redwood Creek 152 Comment
  HSC44057  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3559 Humboldt Along Blanket Creek 1494 Comment
  UC585642  Carex brainerdii Joseph P. Tracy 1937-7-24 15525 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1767 Comment
  HSC45391  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4404 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC61629  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake Comment
  RSA364727  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt On McKeown Ranch north of Dinsmore. 762 Comment
  UC50822  Carex deweyana subsp. leptopoda Joseph P. Tracy 1900-8-5 921 Humboldt in immediate vicinity of Eureka 0 Comment
  SEINET10823148  Carex echinata Pykala 1987-6-11 PYKALA 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole, Abies concolor-forest, open springy mountainmeadow by a little stream, surrounded by Alnus-thickets. 1554 Comment
  HSC97784  Carex echinata subsp. echinata Juha Pykala, D. H. Norris 1987-6-11 1618 Humboldt N Trinity Mtn. Wilderness, W of Crogan Hole 1555 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CAS-BOT-BC20014  Carex feta Joseph Prince Tracy 1928-6-17 8451 Humboldt Trinity RIver Valley, at Willow Creek. 152 Comment
  JEPS80027  Carex globosa Joseph P. Tracy 1936-5-22 7507 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  UC562715  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges 91 Comment
  JEPS79845  Carex hendersonii Joseph P. Tracy 1911-6-4 3230 Humboldt Northern Coast Region, along Little River, 5 mi from the Coast Little River; Northern Coast Region, Little River 121 Comment
  JEPS25977  Carex integra Joseph P. Tracy 1935-7-23 14139 Humboldt at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CHSC90279  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8599 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC562250  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC103142  Carex lenticularis var. lipocarpa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1068 Humboldt Patterson Meadows 1555 Comment
  RSA22169  Carex leptopoda Joseph P. Tracy 1937-6-20 15353 Humboldt Bear river, ten miles up stream from the mouth 152 Comment
  CAS-BOT-BC31612  Carex luzulina var. ablata Doris K. Kildale 1931-5-10 10554 Humboldt Snow Camp. Comment
  CAS-BOT-BC31586  Carex luzulina var. luzulina Joseph Prince Tracy 1939-7-9 16341 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC539840  Carex mendocinensis H. N. Bolander; Kellogg, M. D.; & Co. 1967-6-1 s.n. Humboldt Red Mt. Comment
  CHSC47355  Carex nudata L. P. Janeway 1984-5-13 784 Humboldt Levee on E side Eel River near Fortuna and Sandy Prairie Rd. 12 Comment
  UC562448  Carex nudata Joseph P. Tracy 1935-7-21 14120 Humboldt along river at Willow Creek Trinity River Valley 152 Comment
  CHSC34066  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Northern Coast Region of California. Ocean beach at Humboldt Bay. Comment
  POM289940  Carex obnupta Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad. Comment
  BLMAR237  Carex obnupta Jennifer Anthony-Wheeler 1996-9-26 237 Humboldt King range, growing in wet places in creeksides habitat between Nadelos and Wailaki 548 Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 Comment
  HSC69875  Carex ovalis Thomas W. Nelson 1978-5-28 4100 Humboldt McKeown Ranch, N of Dinsmore 762 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
  UC562552  Carex ovalis Joseph P. Tracy 1927-7-17 8279 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  CHSC107145  Carex pachycarpa R. E. Brainerd 2009-7-23 1570 Humboldt Coast Range, South Fork Mountain; headwaters of Kerlin Creek; 19.6 air miles west-northwest of Hayfork; Forest Service Road 3N32. UTM zone 10 453507E 4494866N. 1716 Comment
  UC562659  Carex pachystachya Joseph P. Tracy 1935-7-27 14287 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC70628  Carex pansa Joseph Burtt Davy and Walter C. Blasdale 1899-5 6218 Humboldt Eureka Comment
  HSC32420  Carex pansa Rudolf W. Becking 1974-6-15 Humboldt Between Samoa and Fairhaven, W of connecting road Comment
  CAS-BOT-BC118004  Carex rossii Joseph Prince Tracy 1949-5-8 18296 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 Comment
  JEPS79843  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  UC303011  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  JEPS79862  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC116909  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4737 Humboldt Near Alder Point Comment
  HSC44120  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1976-6-15 2735 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  UC562636  Carex subfusca Joseph P. Tracy 1936-6-5 14858 Humboldt 6 mi se Arcata (Fickle Hill) 579 Comment
  CAS-BOT-BC116677  Carex subfusca Joseph Prince Tracy 1935-7-27 14296 Humboldt Open places at McKay Prairie, along creek in meadow. 1584 Comment
  HSC76775  Carex tumulicola L. P. Janeway 1983-5-21 303 Humboldt Grassy slope above Chezem Rd., 2.1 mi. E of Chezem Rd. bridge over Redwood Creek 396 Comment
  SEINET4110860  Carex unilateralis D. W. Taylor 2004-1 19135 Humboldt Clear Lake, Titlow Hill Road. 1493 Comment
  SEINET4170217  Carex unilateralis Unknown 1946-5-30 17539 Humboldt Near Bridgeville 457 Comment
  SEINET190456  Carex viridula H. E. Parks 5214 Humboldt Dry Lagoon south of Orick. 130 Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC98629  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 184 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1222837  Castilleja affinis subsp. affinis Joseph P. Tracy 1950-6-15 18799 Humboldt 7 mi n Harris; Mail Ridge Comment
  HSC79475  Castilleja affinis subsp. litoralis Kenneth Clark 1980-4-18 588 Humboldt Dead Man's Gulch 12 Comment
  CAS-BOT-BC249254  Castilleja ambigua subsp. humboldtiensis Doris K. Kildale 1928-5-25 6041 Humboldt Eureka - end of third street near drawbridge 15 Comment
  RSA273315  Castilleja ambigua subsp. humboldtiensis J. D. Ackerman 1975-6-10 462 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  POM92403  Castilleja ambigua subsp. humboldtiensis L. R. Abrams 1922-6-25 8249 Humboldt Humboldt Bay, east of Arcata. Comment
  UC1238991  Castilleja applegatei subsp. martinii Freed W. Hoffman 1949-7-15 3009 Humboldt e slope Mule Slide (a little s of Blue Ridge); North Coast Ranges, Mt. Lassic Area Comment
  RSA167243  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1950-7-2 18974 Humboldt Near top of ridge, 1 mile south of Grizzly Camp. Comment
  HSC56116  Castilleja arachnoidea Gilbert Muth 1979-8-1 11889 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC99531  Castilleja arachnoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 195 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC38395  Castilleja attenuata J. D. Ackerman 1975-6-10 447 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  SEINET12288574  Castilleja douglasii H. P. Chandler 1901-1 1485 Humboldt North Coast Ranges, Klamath River 427 Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  HSC95071  Castilleja exserta subsp. latifolia Andrea Pickart 2002-7-2 148 Humboldt King Salmon Sand Spit 0 Comment
  UC1011938  Castilleja exserta subsp. latifolia F. W. Pennell and J. P. Tracy 1940-7-6 26085 Humboldt w of Lolita (Table Bluff L.H.) 0 Comment
  HSC76191  Castilleja miniata Overton, Butler 1979-7-24 9792 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  CDA18988  Castilleja miniata subsp. miniata P. Haggard 2000-8-22 PDR 071958 Humboldt Hoopa Valley Reservation; Along Big Hill Rd., Hoopa. 0 Comment
  HSC56416  Castilleja rubicundula subsp. lithospermoides Griswold, Butler 1979-7-11 7070 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  JEPS25752  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1908-6 2849 Humboldt opposite Buck Mountain (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  RSA517384  Castilleja wightii R. C. Bacigalupi, L. R. Heckard 1964-7-27 8962 Humboldt Shaded bend of road just (1/8 mile) above and east of Shelter Cove. On partly shaded N-facing road bank. Comment
  HSC100905  Ceanothus Carl C. Marshall Jun 1887 462 Humboldt East branch. Comment
  CAS-BOT-BC49319  Ceanothus cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mountain 1432 Comment
  HSC70378  Ceanothus cuneatus M. A. Baker 1980-6-7 1789 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC49315  Ceanothus cuneatus Doris K. Kildale 1926-12-19 2870 Humboldt South Fork. on South Fork of Eel River. 51 Comment
  UC1193330  Ceanothus cuneatus var. cuneatus K. Cuff Sep 1950 125 Humboldt 6 mi nw Garberville (rocky ridgecrest of Bear Butte); Quad. 29C1 762 Comment
  UC728641  Ceanothus foliosus Milo S. Baker 1931-5-17 5192 Humboldt e Occidental (27.5 mi south of Garberville on hwy.) Comment
  CAS-BOT-BC49655  Ceanothus foliosus var. foliosus Dr. A. Kellogg; W. G. W. Harford 1868-1-1 s.n. Humboldt Red Mt. Route Comment
  CAS-BOT-BC49659  Ceanothus foliosus var. foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 miles south of Bridgeville 457 Comment
  HSC40027  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2873 Humboldt At Goat Hill Lookout 1666 Comment
  RSA46465  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-5-15 3301 Humboldt Petrolia Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  CAS-BOT-BC51220  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC101658  Ceanothus parryi J. P. Smith, J. O. Sawyer 2011-4-23 13118 Humboldt Along Salmon Creek Rd., 4.6 miles from its junction with U.S. 101. 290 Comment
  HSC43179  Ceanothus parryi R. Sutherland 1975-6-19 2 .19675 Humboldt 2 mi NE of Briceland 178 Comment
  HSC18314  Ceanothus pumilus Francis Winter 1960-4-24 Humboldt Along rd., French Camp Ridge 915 Comment
  HSC23293  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1294 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  CAS-BOT-BC52219  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs Comment
  CAS-BOT-BC52984  Ceanothus thyrsiflorus L. R. Abrams; R. Bacigalupi 1922-6-25 8295 Humboldt Bluffs north of Big Lagoon Comment
  HSC18337  Ceanothus thyrsiflorus H. E. Parks Apr 1934 4229 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC43193  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 0 .28575 Humboldt N Fork of Horse Mtn. Creek 427 Comment
  UC1198000  Ceanothus thyrsiflorus J. P. Tracy 1901-6-23 1166 Humboldt Eureks 0 Comment
  UC1198027  Ceanothus velutinus Joseph P. Tracy 1913-7-20 4374 Humboldt Near Three Creeks 1066 Comment
  CDA7087  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  CAS-BOT-BC272097  Centaurea melitensis Doris K. Kildale 1925-7-26 1067 Humboldt Mad River near Blue Lake Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  CDA7310  Centaurea pratensis E. C. Whitney 1966-8-12 Humboldt Holmes Flat. Miller property. 0 Comment
  UC1222949  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  UC566944  Centaurium muehlenbergii H. L. Mason 1928-7-14 4903 Humboldt near Garberville; East Fork of Eel River Comment
  UCR123952  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 2001-7-8 6964 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  RSA185429  Centaurium muehlenbergii Clare B. Hardham 1965-08 12858 Humboldt South fork of Eel River. Comment
  RSA34292  Centaurium muehlenbergii Doris K. Kildale 1927-7-11 3717 Humboldt Blue Slide on Van Duzen River Comment
  HSC103128  Cephalanthera austiniae M. Mesler 2009-7-31 812 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  CAS-BOT-BC384904  Cerastium arvense Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SBBG1996  Cerastium arvense H. and M. Dearing 1933-5-17 239 Humboldt N of Arcata Comment
  CAS-BOT-BC384903  Cerastium arvense Alice Eastwood; John Thomas Howell 1937-6-24 4862 Humboldt Road to Horse Mt. Comment
  UCSB1850  Cerastium glomeratum Parks, H.; Parks, S. 1944-04 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC39059  Cerastium glomeratum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2645 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC2136  Cercis occidentalis Doris K. Kildale 1926-5-2 1909 Humboldt Willow Creek Comment
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 Comment
  CAS-BOT-BC85654  Chamaecyparis lawsoniana Doris K. Kildale 1928-10-7 6749 Humboldt Willow Creek Canyon, 7 miles west of Trinity River. Comment
  HSC46007  Chamaecyparis lawsoniana J. P. Smith 1971-10-9 5021 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  SEINET10719673  Chamaecyparis lawsoniana Ronald J. Mastrogiuseppe 1966-1 Mastrogiuseppe s.n. Humboldt Growing in upper Bull Creek, Humboldt Redwoods State Park. Comment
  SEINET5334897  Chamaecyparis lawsoniana W. D. Billings 1940-6-25 1350 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  JEPS52363  Chamaesyce serpyllifolia Joseph P. Tracy 1928-9-16 6555 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley Comment
  UC1122511  Chamerion angustifolium subsp. circumvagum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  HSC55127  Cheilanthes gracillima G. L. Clifton, Terry Griswold 1979-8-1 11932 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  RSA685760  Cheilanthes gracillima Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans. Comment
  RSA54128  Cheilanthes gracillima Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain 1829 Comment
  UCD97746  Chenopodium album Linda M. Barker 1976-6-22 1629 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC1222586  Chenopodium ambrosioides Joseph P. Tracy 1950-9-22 19377 Humboldt near Slate Creek (8 mi below Orleans); Klamath River 121 Comment
  RSA44502  Chenopodium ambrosioides var. ambrosioides H. M. Pollard 1947-8-31 s.n. Humboldt Klamath River near Wilson Creek, Orleans region. Comment
  UC1197601  Chimaphila menziesii Joseph P. Tracy 1947-7-9 17855 Humboldt Horse Mt. 1432 Comment
  CAS-BOT-BC451493  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  CAS-BOT-BC451494  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  SEINET3992227  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  UC1197339  Cicuta douglasii Joseph P. Tracy 1926-10-24 7822 Humboldt near High Prairie (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET5507070 Image available Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt Redwood Hwy, 1.5 mi N of Orick Comment
  CDA15023  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges; Hwy 299 between mileposts 21.50 and 18, near Willow Creek. 0 Comment
  JEPS59310  Cirsium brevistylum W. L. Jepson 1936-8-15 17900 Humboldt 2 mi e Carlotta Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  CDA1218  Cirsium douglasii var. douglasii T. C. Fuller 1962-8-6 9352 Humboldt Hwy 299, 3.4 miles east of Berry Summit. Comment
  UC912553  Cirsium douglasii var. douglasii Herbert L. Mason 1932-7-21 7107 Humboldt on road from Arcata to Weaverville (e slope of South Fork Mountains); North Coast Ranges Comment
  CAS-BOT-BC285533  Cirsium occidentale var. candidissimum Carl B. Wolf 1934-6-30 5839 Humboldt 7 mi. from Shelter Cove on road to Briceland 152 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-BC160962  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 5979 Humboldt [Blocksberg] Blocksburg Comment
  JEPS25696  Clarkia concinna subsp. concinna P. C. Hutchison 1961-5-22 2028 Humboldt ca. 4 mi n Orleans (hiway 299, e side of river); Klamath River Comment
  UC125958  Clarkia gracilis subsp. sonomensis Mrs. M. H. Manning 1902-1 Humboldt near Hupa Comment
  UC562525  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1933-7-3 12634 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  UC1196978  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1937-7-5 15372 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196984  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1898-7-13 256 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek Bar 60 Comment
  UC1281766  Clarkia purpurea subsp. quadrivulnera Richard Spellenberg 1965-6-13 1109 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); Trinity River Comment
  CAS-BOT-BC172389  Clarkia purpurea subsp. viminea Doris K. Kildale 1927-6-25 3584 Humboldt Near Ettersburg Comment
  UCD100612  Claytonia exigua Thomas W. Nelson; James L. Nelson 1980-6-10 5435 Humboldt Along the east side of Red Mountain. 1371 Comment
  HSC39940  Claytonia rubra subsp. depressa Linda M. Barker 1976-3-22 1336 Humboldt 3 mi. W of Arcata Comment
  UC198590  Claytonia rubra subsp. depressa Joseph P. Tracy 1917-5-30 4792 Humboldt Little River Beach; Northern Coast Ranges 6 Comment
  HSC17728  Claytonia sibirica D. E. Anderson 1961-8-11 1725 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC34155  Claytonia sibirica Linda M. Barker 1974-5-11 179 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  SBBG1967  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  UC1215540  Claytonia sibirica D. E. Anderson 1962-3-8 1930 Humboldt e of Humboldt State University Comment
  UC535735  Claytonia sibirica Eleanor Armstrong 1162 Humboldt Richardson Grove Comment
  SEINET11942405  Claytonia sibirica Unknown 1933-1 3407 Humboldt Redwood Forest, Van Duzen River 6 mi W of Bridgeville Comment
  UC418984  Claytonia sibirica H. E. Parks May 1930 742 Humboldt Upper Van Duzen River Comment
  HSC93927  Claytonia washingtoniana L. Snyder, B. Redfern, A. de Knijf 1999-4-12 37 Humboldt Mad River Fish Hatchery 54 Comment
  CAS-BOT-BC92592  Clematis ligusticifolia J. Clausen 1932-9-19 697 Humboldt Dyerville, Eel River. Comment
  CAS-BOT-BC92593  Clematis ligusticifolia J. Clausen 1932-9-19 697 Humboldt Dyerville, Eel River. Comment
  JEPS61597  Clintonia andrewsiana Lincoln Constance 1934-6-3 810 Humboldt 1 mi n of Dyerville (road from High Rock (on Redwood Hwy) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  SEINET12054084  Clintonia andrewsiana Unknown 1936-1 13200 Humboldt near Garberville Comment
  HSC99448  Clintonia uniflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 98 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC101087  Coincya monensis Andrea Pickart 2009-2-20 729 Humboldt Manila Dunes; End of Lupine Ave., Manila 15 Comment
  UC147866  Collinsia grandiflora Joseph P. Tracy 1908-6-8 2638 Humboldt Kneeland Prairie; Northern Coast Ranges; Kneeland Prairie 762 Comment
  JEPS6199  Collinsia linearis Joseph P. Tracy 1932-7-12 10439 Humboldt Corral Prairie, open places Corral Prairie; Trinity Summit 1584 Comment
  UC582453  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC96206  Collinsia parviflora J. McIntire, S. Lyon 2005-6-8 4 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 on F.S. Rd. NF1 1402 Comment
  HSC81603  Collinsia rattanii Thomas W. Nelson, Jane P. Nelson 1980-5-25 5265 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  UC582457  Collinsia rattanii Joseph P. Tracy 1925-5-20 7032 1/2 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 701 Comment
  UC582446  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  JEPS7054  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  HSC16927  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC23477  Collomia heterophylla D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5061 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  UC1197845  Collomia heterophylla J. P. Tracy 1903-8-9 1933 Humboldt immediate vicinity Eureka 0 Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew Comment
  UC1197862  Collomia tinctoria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8965 Humboldt openings in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  HSC82602  Collomia tracyi Thomas W. Nelson 1979-7-11 4992 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS14142  Conioselinum pacificum Joseph P. Tracy 1913-8-31 4388 Humboldt near Indianola (s end of Humboldt Bay); Northern Coast Region, Humboldt Bay Region 0 Comment
  RSA246751  Conium maculatum R. F. Thorne, P. Everett 1965-8-8 35237 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC6349  Convolvulus arvensis H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  RSA696831  Conyza canadensis J. Russell Bruff 1937-8-17 939 Humboldt Richardson Grove, bed of Eel River. Comment
  CAS-BOT-BC181555  Coptis laciniata Doris K. Kildale 1927-7-17 3753 Humboldt Bug Creek 792 Comment
  HSC103687  Coptis laciniata M. R. Mesler, Jen Kalt 2008-3-19 858 Humboldt Above Mattole River, 2 miles S of Thorn Junction on Briceland-Thorn Rd 226 Comment
  UC176373  Corallorhiza maculata Joseph P. Tracy 1913-6-17 4191 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1524 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
  CAS-BOT-BC101149  Corethrogyne filaginifolia L. R. Abrams 1916-7-18 6096 Humboldt Arcata to Trinidad Comment
  UC1119247  Corethrogyne filaginifolia H. S. Yates 1968-6-16 5668 Humboldt 1.5 mi sw of Samoa; Eureka Quadrangle Comment
  UC1199415  Corethrogyne filaginifolia Joseph P. Tracy 1909-7-18 3016 Humboldt Humboldt Bay Comment
  CAS-BOT-BC32935  Corethrogyne filaginifolia var. californica Henry Nicholas Bolander 1867-6-1 s.n. Humboldt On the coast at Shelter Cove and at Fort Bragg Comment
  CAS-BOT-BC212011  Cornus nuttallii Doris K. Kildale 1926-3-28 1688 Humboldt Lord Ellis Road near Bald Mt. junction 609 Comment
  HSC6405  Cornus nuttallii J. R. Eichelberger 1964-4-10 30 Humboldt 7 mi. N of Willow Creek on Hwy. 96. Comment
  HSC6410  Cornus nuttallii Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  HSC6419  Cornus nuttallii J. Sandborg, F. Sandborg Jun 1968 32 Humboldt Bluff Creek near Notice Creek. Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC57091  Cornus sericea subsp. sericea Overton, Butler 1979-7-24 9805 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC57681  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-7-25 10887 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC210539  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat 152 Comment
  RSA24326  Cornus sessilis C. B. Wolf 1941-2-28 4048 Humboldt Junction of Willow Creek and its E. fork. 457 Comment
  UC668054  Coronopus didymus Joseph P. Tracy 1938-7-15 16067 Humboldt Mouth of Eel River 3 Comment
  HSC28085  Coronopus didymus David Johnson 1973-11-27 Humboldt S side of Samoa Cookhouse Comment
  HSC56977  Corylus cornuta subsp. californica Overton, Butler 1979-7-23 9512 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA34307  Cotula australis C. Kistner 1935-5-15 s.n. Humboldt Arcata Bottom. Comment
  UCR48592  Cotula coronopifolia R. D. Goeden, Don W. Ricker 1987-9-2 870902- 16 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  HSC87175  Crassula aquatica K. Grenier 1988-11-16 291 Humboldt North Spit of Humboldt Bay Comment
  OBI77435  Crepis acuminata David J. Keil 1983-7-2 17326 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UCR121767  Crepis capillaris George K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UCR122363  Crepis capillaris George K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 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
  HSC46020  Crepis capillaris Catherine Chin 1978-8-5 93 Humboldt Arcata, along 16th St., 100 yds. E of Union St. Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  RSA47133  Crepis capillaris Doris K. Kildale 1925-7-15 1083 Humboldt Eureka Slough. Comment
  UC176476  Crepis occidentalis Joseph P. Tracy 1913-6-21 4256 Humboldt near summit of ridge between Van Duzen River and Mad River; Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC538047  Crepis occidentalis E. B. Babcock 1932-6-25 404 Humboldt South Fork Mt.; exposed n slope, Humboldt-Trinity Counties 1828 Comment
  HSC39392  Crepis pleurocarpa D. E. Anderson, J. P. Smith 1971-7-6 1278 Humboldt Horse Mtn. Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC42455  Crepis pleurocarpa Barbara Kelly 1977-7-16 540 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  UC905064  Crepis setosa Henry M. Pollard 1948-8-8 Humboldt roadside between Orleans and Camp Creek Comment
  CAS-BOT-BC290907  Crepis setosa Henry M. Pollard 1947-8-21 s.n. Humboldt Between Orleans and Boyse [Boise] Creek Comment
  CAS-BOT-BC299701  Crocidium Doris K. Kildale 1929-4-28 7468 Humboldt Between Little Van Duzen River and Dinsmores on Bridgeville - Red Bluff Road Comment
  SEINET12280859  Cryptantha milobakeri J. P. Tracy 1949-1 18469 Humboldt E of headwaters of Redwood Creek, south from Grouse Mt., 2-6 miles 1280 Comment
  UC179963  Cryptantha torreyana Joseph P. Tracy 1914-7-5 4560 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET11719535  Cryptogramma acrostichoides F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -317 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC902066  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18410 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC59578  Cuscuta pacifica var. pacifica Rick Lundquist 1979-5-18 102 Humboldt South G St. 1 mi. S of Samoa Blvd. around Humboldt Bay 0 Comment
  JEPS39358  Cynoglossum grande Lincoln Constance 1934-6-7 831 Humboldt Bull Creek Region, S. Fork Eel R., Johnson Prairie Comment
  UC582617  Cynoglossum occidentale Joseph P. Tracy 1936-8-8 15125 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  POM313169  Cynosurus cristatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1195 Humboldt Southern outskirts of Eureka Comment
  UC668030  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt slopes w. of its mouth S. Fork Trinity R. 304 Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  JEPS64063  Cyperus squarrosus Joseph P. Tracy 1916-9-5 4773 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  POM160839  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath River at Bluff Creek. 152 Comment
  HSC54710  Cypripedium montanum Overton, Butler 1979-7-26 10063 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC97609  Cystopteris fragilis Cara Witte 2007-6-4 203 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  CSUSB1618  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC89606  Cytisus scoparius M. Roantree 1985-5-7 44 Humboldt E side of Trinidad Head Comment
  CDA4074  Cytisus scoparius T. C. Fuller 1961-3-22 5939 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  HSC54606  Dactylis glomerata Overton, Butler 1979-7-24 9690 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCSC000025  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E. of the Mad River Mad River - Eureka 30 Comment
  HSC32479  Danthonia californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5721 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC58653  Danthonia californica G. L. Clifton, Griswold 1979-7-31 11723 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CHSC78112  Danthonia californica var. americana Alexsis Davie; K. Schierenbeck 1998-5-7 20 Humboldt Lonestar Ranch, Bear River. Found along Bear River Ridge. 609 Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  UCD61366  Danthonia unispicata Joseph P. Tracy 1951-6-26 19571 Humboldt Snow Camp and Twin Lakes vicinity. Comment
  UC183570  Darmera peltata Joseph P. Tracy 1913-6-11 4093 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA421918  Datura stramonium M. B. Dunkle 1936-8-22 4855 Humboldt Williams Grove, Eel River. 213 Comment
  HSC38897  Daucus pusillus J. P. Smith 1973-5-26 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC249612  Daucus pusillus Joseph P. Tracy 1921-7-10 5845 Humboldt near ocean Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UCD127415  Daucus pusillus P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  CAS-BOT-BC292093  Delairea odorata Stuart K. Harris 1960-12-5 22066 Humboldt Mouth of Howe Creek Comment
  RSA114999  Delphinium decorum E. K. Balls, Lee W. Lenz 1955-5-15 20741 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  HSC100614  Delphinium hesperium Carl C. Marshall Jun 1886 80 Humboldt Redwood region. Comment
  POM149763  Delphinium hesperium L. R. Abrams 1916-7-11 600 Humboldt Between Blocksberg and Bridgeville Comment
  CAS-BOT-BC10146  Delphinium menziesii Doris K. Kildale 1926-3-21 1617 Humboldt Kneeland Prairie 762 Comment
  HSC36195  Delphinium menziesii John Rehling 1975-5-15 83 Humboldt 8 mi. W of Ferndale on the Mattole Rd. Comment
  JEPS60600  Delphinium nudicaule Lincoln Constance 1934-6-15 881 Humboldt Grasshopper Peak Bull Creek Region, South Fork Eel River (summit) 975 Comment
  HSC98171  Delphinium nudicaule Jack Rockwell 1962-5-12 79 Humboldt Near CDF along creek 198 Comment
  CAS-BOT-BC116467  Delphinium nuttallianum Daniel Howard Norris 1931-5-30 12213 Humboldt ...at crest of ridge on Big Hill Road east of Hoopa Comment
  CAS-BOT-BC121967  Delphinium trolliifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC45269  Delphinium trolliifolium M. Alcasas 1978-6-3 122 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  JEPS5768  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  RSA75637  Delphinium trolliifolium Albert M. Vollmer, L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec. Comment
  UC1196341  Delphinium trolliifolium Joseph P. Tracy 1921-6-19 5831 Humboldt Berry Mt. Northern Coast Ranges 914 Comment
  UC9230  Delphinium trolliifolium Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5615 Humboldt near Acorn Comment
  SEINET879526  Dentaria integrifolia J. P. Tracy 1921-1 5426 Humboldt Blue Slide, on Van Duzen River. 91 Comment
  HSC40248  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt 3 mi. W of Arcata. Comment
  SACT000911  Deschampsia cespitosa Malcolm Nobs, S. Smith 1949-8-3 Humboldt Borders of irrigation ditch, 1 mile south of Fields Landing, Eel River Valley. Comment
  CAS-BOT-BC194299  Deschampsia cespitosa subsp. cespitosa David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC102184  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1098 Humboldt Patterson Meadows 1566 Comment
  UC526672  Deschampsia elongata Joseph P. Tracy 1932-7-17 10680 Humboldt ridges e. of Corral Prairie; Klamath Mts., Trinity Summit 1828 Comment
  SEINET3927555  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Hoopa quad. Envorons of Mud Spring. Big Hill Road (F. S. 8N01).; 0 1524 Comment
  CHSC32856  Dicentra formosa Lora Anderson 1981-4-26 4 Humboldt Ca. 5 m n of Clam Bach Rd. 0.5 km e of Hwy. 101, 9.5 mi n of Arcata. 0 Comment
  HSC12427  Dicentra formosa Gary J. Stebbins 1970-4-19 72 Humboldt Along road to Fieldbrook 2.8 mi. N of Hwy. 299 Comment
  UC1222561  Dicentra formosa Joseph P. Tracy 1950-6-8 18719 Humboldt 7 mi s Ferndale (Mountain Glen); Bear River Ridge, Mountain Glen 609 Comment
  HSC48790  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1975-6-17 664 Humboldt Along Titlow Hill Rd. Comment
  HSC71113  Dichelostemma capitatum subsp. capitatum M. A. Baker 1980-5-23 1379 Humboldt Near Buck Mtn. 1524 Comment
  UCD139216  Dichelostemma capitatum subsp. capitatum K. Esau 1934-5-7 s.n. Humboldt above Fort Seward. 457 Comment
  UC1198164  Dichelostemma congestum Joseph P. Tracy 1917-6-17 4814 Humboldt near Field's Landing (Still Farm, near Humboldt Bay); Northern Coast Ranges, Humboldt Bay 15 Comment
  HSC3031  Dichelostemma ida-maia D. E. Anderson 1965-5-15 3710 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  JEPS5682  Dichelostemma ida-maia W. L. Jepson 1902-6 2132 Humboldt Three Creeks to Redwood Creek (near summit of grade) Comment
  SEINET3885615  Dichelostemma ida-maia Jan G. Cooper 1976-8-2 5 Humboldt Along road to Horse Mountain Ski area turnoff of Hwy 299.; 0 1219 Comment
  SEINET8476733  Dichelostemma ida-maia M. J. Williams 1969-5-23 s.n. Humboldt Bald Hills. 152 Comment
  UC175926  Dichelostemma ida-maia Joseph P. Tracy 1913-6-20 4227 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC150346  Diplacus aurantiacus Alice Eastwood 1907-4-21 6 Humboldt Trinidad Comment
  RSA168933  Disporum smithii Joseph P. Tracy 1951-6-14 19418 Humboldt Snow Camp. 1402 Comment
  UCR179281  Disporum smithii R. G. Swinney 1968-3-28 234 Humboldt East of Humboldt State College, Arcata 152 Comment
  RSA46820  Disporum smithii Doris K. Kildale 1926-3-26 1636 Humboldt Old Kneeland road. Comment
  CAS-BOT-BC208663  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  HSC26352  Distichlis spicata T. O. Osborne 1970-4-5 68 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  UC38068  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6211 Humboldt near Ferndale Comment
  UCR32182  Distichlis spicata David J. Keil 1983-7-1 17286 Humboldt Pacific Coast, c. 5 mi. west of Petrolia along Mattole Road 225 Comment
  JEPS14670  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC34498  Dodecatheon hendersonii J. D. Ackerman 1975-5-3 439 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  UC562465  Dodecatheon hendersonii Joseph P. Tracy 1924-3-9 6612 Humboldt Kneeland Prairie 762 Comment
  HSC17866  Dodecatheon hendersonii Francis Winter 1960-4-24 Humboldt Pine Ridge Summit, 3 mi. NE of Redwood Creek Ranch 854 Comment
  UC1243950  Downingia elegans Joseph P. Tracy 1947-6-28 17748 Humboldt Larrabee Valley 731 Comment
  HSC7577  Drosera rotundifolia D. E. Anderson 1961-9-9 1800 Humboldt Big Lagoon County Park Comment
  UC183604  Drosera rotundifolia Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  HSC975  Dryopteris arguta R. I. Bonn 1965-5-9 49 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  JEPS35200  Dryopteris arguta W. L. Jepson 1932-8-9 16542 Humboldt Deerfoot Glade Bull Creek 121 Comment
  RSA46702  Dryopteris expansa C. R. Fraser-Jenkins 1928-12-23 6761 Humboldt Humboldt Co. Comment
  UC1103659  Eleocharis bella Joseph P. Tracy 1931-9-7 9651 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET3910832  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Eureka Quad. Along east side of State Route 101 just north of the Eureka Airport.; 0 Comment
  UC1103661  Eleocharis obtusa Joseph P. Tracy 1920-8-15 5365 Humboldt Klamath River at Bluff Creek Northern Coast Ranges Comment
  HSC96564  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM87948  Eleocharis palustris Le Roy Abrams 8267 Humboldt Big Lagoon, south of Orick. Comment
  UC552793  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  HSC54579  Elymus glaucus Overton, Butler 1979-7-24 9618 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET4674729  Elymus hispidus Thomas Nelson, Jane Nelson 1976-7-26 3023 Humboldt Trinity-Humboldt Co. line.; 0 1615 Comment
  HSC73480  Elymus multisetus Gail Newton 1980-7-11 1327 Humboldt Near Red Mtn. 1341 Comment
  UC526849  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-7-6 11141 Humboldt Iaqua Northern Coast Ranges 609 Comment
  UCD117423  Empetrum nigrum subsp. hermaphroditum James Payne Smith Jr. 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just north of College Cove. Comment
  HSC99549  Epilobium brachycarpum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 214 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS39238  Epilobium brachycarpum W. L. Jepson 1932-8-9 16358 Humboldt Bull Creek Redwood Creek 106 Comment
  UC205233  Epilobium canum subsp. latifolium Joseph P. Tracy 1919-9-23 5288 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC54566  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9586 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC103266  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-11 Humboldt Six Rivers National Forest, Trinity Mountain Quad, Lower Trinity District, Crogan Hole. 1616 Comment
  HSC103281  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mountain, Forest Service Road 5N04. 1576 Comment
  HSC55123  Epilobium glaberrimum subsp. fastigiatum G. L. Clifton, Terry Griswold 1979-8-1 11923 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC55081  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11736 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC76627  Epilobium minutum Denis Kearns 1981-6-24 13 Humboldt Near Cedar Camp 1219 Comment
  UCR45444  Epilobium minutum N. Meiselman, M. Bransom, D. Brown, Ron Hildebrandt 1986-4-19 28 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  JEPS109976  Epilobium oreganum Dean W. Taylor 2006-8-31 19633 Humboldt UNDERWOOD MOUNTAIN: meadowy opening in forest above the ''Hog Ranch'' site on the USGS map 883 Comment
  UC505110  Epilobium oregonense Joseph P. Tracy 1932-7-16 10611 Humboldt meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC39177  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 1224 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CAS-BOT-BC57163  Equisetum hyemale subsp. affine Duart V. Brown 1947-3-24 3 Humboldt 3 miles south of Willow Creek, Trinity River Comment
  SEINET5525683 Image available Equisetum telmateia Unknown 1983-6-16 Humboldt Patricks Pt State Park Comment
  UC1239786  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-3-21 15235 Humboldt Van Duzen River near Grizzly Creek; Van Duzen River 91 Comment
  HSC91901  Equisetum telmateia subsp. braunii E. Mackey 1987-2-18 Humboldt Patrick's Point State Park, on trail to Wedding Rock Comment
  HSC5491  Erechtites glomeratus H. E. Parks, S. T. Parks Jul 1937 24033 Humboldt Trinidad; Spruce Cove 64 Comment
  POM126125  Ericameria arborescens subsp. arborescens Joseph P. Tracy 1924-8-24 6827 Humboldt Trinity River Valley, near Willow Creek 183 Comment
  UC1199413  Ericameria nauseosa var. speciosa Joseph P. Tracy 1935-7-30 14360 Humboldt Salmon Summit 1767 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  SEINET11855650  Erigeron decumbens var. robustior J. P. Tracy 1942-7-4 17370 Humboldt Buck Mountain, lower foothills of its NW slope 762 Comment
  RSA168810  Erigeron foliosus var. confinis Joseph P. Tracy 1947-7-5 17785 Humboldt Trinity Summit; Ridge top one mile W of Mud Springs. 1159 Comment
  CAS-BOT-BC300676  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road, near the summit of ridge 762 Comment
  UC1222983  Erigeron glacialis var. glacialis Joseph P. Tracy 1947-8-24 17902 Humboldt meadow at Box Camp; Trinity Summit, Box Camp 1463 Comment
  JEPS21931  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  UC1223136  Erigeron inornatus var. inornatus Joseph P. Tracy 1949-8-11 18483 Humboldt 3 mi se of Snow Camp (at Twin Lakes); Twin Lakes 1463 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  CAS-BOT-BC214580  Erigeron philadelphicus D. E. Breedlove 1962-6-8 3064 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  UC153939  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  UC153941  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  UC1223009  Erigeron robustior Joseph P. Tracy with Mr. Murphy 1951-6-26 19581 Humboldt Twin Lakes vicinity Comment
Read comments
Sep 3 2011
  UC87665  Erigeron strigosus var. strigosus Harley P. Chandler June 1901 1402 Humboldt Klamath River North Coast Ranges 243 Comment
  HSC70691  Eriodictyon californicum Gail Newton 1980-7-15 1566 Humboldt Near Sims Mtn. 1311 Comment
  UC906676  Eriodictyon californicum Joseph P. Tracy 1947-7-5 17795 Humboldt near Mud Springs Trinity Summit (Trinity Summit); , near Mud Springs 1371 Comment
  HSC97398  Eriogonum compositum var. compositum Benjamin Hart, Erin Lonergan 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1524 Comment
  CAS-BOT-BC259159  Eriogonum latifolium Dr. A. Kellogg; W. G. W. Harford 1868-1-1 881 Humboldt Shelter Cove Comment
  RSA21010  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 8 Comment
  SBBG1531  Eriogonum latifolium H. and M. Dearing 1939-5-25 3438 c Humboldt near Samoa Comment
  SD117467  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes Comment
  CAS-BOT-BC259541  Eriogonum luteolum var. luteolum A. A. Heller 1924-7-20 13861 Humboldt Along the Eel River at Phillipsville Comment
  UC1198103  Eriogonum luteolum var. luteolum J. P. Tracy 1900-9-10 957 Humboldt 6 mi above Hydesville (Van Duzen River bar); Van Duzen River 60 Comment
  RSA66020  Eriogonum nudum var. auriculatum F. W. Peirson 1923-7-10 4206 Humboldt Garberville. Comment
  BLMAR218  Eriogonum nudum var. nudum Jennifer Anthony-Wheeler 1996-7-9 218 Humboldt Pilots ridge., abundant found on dry open areas 1280 Comment
  HSC43080  Eriogonum nudum var. nudum Brad Klipfel 1973-7-31 233 Humboldt N Trinity Mtn. 1860 Comment
  HSC97941  Eriogonum nudum var. oblongifolium Cara Witte 2007-7-2 394 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  UC144102  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1909-8-1 3058 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC269868  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 316 Humboldt In the vicinity of Hoopa Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC55087  Eriogonum umbellatum var. polyanthum G. L. Clifton, Griswold 1979-7-31 11755 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  SEINET3841343 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-28 14329 Humboldt Trinity Summit, Head of Devil's Hole 1829 Comment
  HSC40976  Eriophorum crinigerum J. O. Sawyer 1970-6-24 2216 Humboldt Big Hill Rd., E of Hoopa 1189 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
  HSC5581  Eriophyllum lanatum var. achilleoides H. E. Parks, J. P. Tracy 1934-6-27 11063 Humboldt Grouse Mtn. 1433 Comment
  UC165859  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1911-6-29 3268 Humboldt near Hydesville (gravel bar of river); Van Duzen River 60 Comment
  UC1718078  Eriophyllum lanatum var. grandiflorum John S. Mooring 1970-7-7 2498 Humboldt hwy 96 2.5 miles S of Klamath River in Weitchpec, 20.4 miles N of Willow Creek in Willow Creek Comment
  HSC78919  Eriophyllum lanatum var. lanceolatum T. Jimerson, D. K. Imper 1982-5-17 1438 Humboldt Near Ashfield Ridge. 822 Comment
  POM358117  Eriophyllum staechadifolium Lester Rowntree 1931-7-18 s.n. Humboldt Near Petrolia Comment
  UC180182  Erodium botrys Joseph P. Tracy 1914-5-14 4462 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  POM17177  Eryngium aristulatum var. aristulatum J. B. Feudge 1923-7-27 55 Humboldt Rohnerville 15 Comment
  UC1222612  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1951-6-21 19528 Humboldt in bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); Hydesville, , Everett Beck ranch house Comment
  HSC54208  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-12 7251 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC6764  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt S Fork Eel River, summit of Grasshopper Peak down Canoe Creek Rd. to Redwood Hwy., and thense N to Dyerville Comment
  SFV18510  Erysimum capitatum var. capitatum D. Waller 2002-4-13 33 Humboldt Near Horse Mountain, 3 miles up Titlow Hill Road. 915 Comment
  UC1199174  Erysimum menziesii Joseph P. Tracy 1918-5-5 4920 Humboldt sand dunes of Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
Read comments
Apr 21 2012
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  HSC70931  Erythronium californicum R. York 1980-5-18 558 Humboldt Near Black Mtn. 1006 Comment
  HSC104422  Erythronium grandiflorum Sydney Carothers 2004-5-31 42 Humboldt Grouse Mountain; back side of Grouse Mtn., slope above Forest Service Rd. 5NO4, below summit 1610 Comment
  HSC15504  Erythronium revolutum W. D. Stevens 1963-4-15 14 Humboldt 1.5 mi. W of Berry Summit on Hwy 299 Comment
  RSA168935  Erythronium revolutum Joseph P. Tracy 1950-5-7 18650 Humboldt Near the Redwood House but on Yager Slope, head of South Yager Comment
  HSC16768  Eschscholzia californica William J. Ferlatte 1963-4-28 24 Humboldt Near 12th and B St., Arcata Comment
  UC668058  Eschscholzia californica Joseph P. Tracy 1938-6-17 15956 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  HSC59103  Eucalyptus globulus Clark L. Miller 1979-5-24 9157 Humboldt Along Hwy. 101 ca. 100 yards from Murray Rd. off-ramp. Comment
  HSC58763  Eucephalus ledophyllus Terry Griswold 1979-7-26 10161 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  RSA93311  Eucephalus tomentellus R. S. Woglum 1938-8-28 1974 Humboldt Patrick Creek Comment
  UC302052  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; North Coast Ranges 0 Comment
  HSC12567  Euphorbia peplus D. La Conte 1970-6-15 6 Humboldt Comment
  SEINET3244015  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-1 879 Humboldt Bars of the Van Dusen River, above Blue Slide. Comment
  CDA18038  Festuca californica R. Spadoni, Ottoson 1999-7-13 PDR 1170299 Humboldt Hills above Showers Pass towards Kneeland from Hwy 36, Soldiers Grove. At Eaton Rough Mtn. area, near Bridgeville. 0 Comment
  UC552766  Festuca elmeri H. E. Parks and Joseph P. Tracy 1934-6-27 11045 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC63851  Festuca occidentalis M. A. Baker 1979-6-29 963 Humboldt Hopkin's Creek. 750 Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  CAS-BOT-BC278964  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC95257  Festuca rubra Andrea Pickart 2002-7-3 152 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1103710  Festuca rubra Harold E. Parks and Joseph P. Tracy 1935-6-16 11272 Humboldt lower nw slopes Buck Mountain 792 Comment
  UC1132004  Festuca rubra H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. 0 Comment
  UC1103706  Festuca subulata Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC187119  Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt immediate vicinity Eureka 0 Comment
  HSC102011  Floerkea proserpinacoides M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 912 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC46955  Fragaria chiloensis J. P. Smith, Thomas W. Nelson 1977-6-30 9205 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC18619  Fragaria chiloensis D. E. Anderson 1962-3-30 1954 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC59396  Fragaria chiloensis Rick Lundquist 1979-4-25 42 Humboldt .3 mi. S of Samoa on Samoa Blvd. 0 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC53403  Frangula californica subsp. occidentalis C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SD37645  Frangula purshiana Edith A. Purer 1933-5-10 3625 Humboldt none listed Comment
  POM130724  Frasera albicaulis var. nitida H. P. Chandler 1901-06 1486 Humboldt Klamath River. Comment
  UC1173690  Fraxinus latifolia Joseph P. Tracy 1939-5-6 16279 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  HSC34910  Fritillaria affinis Thomas W. Nelson, James Nelson 1975-5-24 1841 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC130448  Fritillaria purdyi Doris K. Kildale 1928-3-28 4364 Humboldt Kneeland Prairie 853 Comment
  UC1196095  Galium aparine Joseph P. Tracy 1935-7-23 14166 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UCSB22663  Galium aparine Jensen, Karen 1965-4-15 Humboldt 0.2 km to the west of Hwy 101 at Miranda turnoff 91 Comment
  UC1196099  Galium bifolium Joseph P. Tracy 1939-7-9 16331 Humboldt Snow Camp 1402 Comment
  UC198660  Galium divaricatum Joseph P. Tracy 1916-6-19 4730 Humboldt Alder Point Northern Coast Ranges 152 Comment
  CDA6673  Galium divaricatum T. C. Fuller 1958-6-17 603 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UC1225913  Galium muricatum Joseph P. Tracy 1942-7-1 17359 A Humboldt opposite Buck Mountain (along river); Van Duzen River, Dinsmore's 762 Comment
  UC602511  Galium porrigens Joseph P. Tracy 1926-4-11 7406 B Humboldt Bridgeville 198 Comment
  JEPS6555  Galium trifidum var. pacificum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth of river Little River 6 Comment
  HSC39162  Galium triflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1241 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC169032  Galium triflorum Joseph P. Tracy 1908-6 2862 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CAS-BOT-BC303395  Gamochaeta ustulata Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC1199344  Gamochaeta ustulata Joseph P. Tracy 1934-6-19 13232 Humboldt Carlotta 60 Comment
  UC164849  Gamochaeta ustulata J. P. Tracy 1907-6-20 2573 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC303396  Gamochaeta ustulata M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  BLMAR538  Garrya buxifolia Jennifer Wheeler 2009-6-23 538 Humboldt King range, On King Peak road Comment
  RSA46715  Garrya buxifolia Doris K. Kildale 1937-8-15 15331 Humboldt High Divide Comment
  UC21582  Garrya elliptica W. C. Blasdale 1896-6-3 Humboldt Eureka; w Eureka Comment
  CAS-BOT-BC182149  Garrya fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC8394  Garrya fremontii J. Wendell Howe Apr 1931 102 Humboldt Kneeland Prairie Comment
  HSC98881  Garrya fremontii Cara Witte 2008-7-2 800 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  UCSB72518  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  SEINET11677850  Gastridium phleoides H. P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  UCD66720  Gastridium phleoides Joseph P. Tracy 1936-6-10 14926 Humboldt West of mouth of South Fork of Trinity River. 457 Comment
  UC38566  Gastridium ventricosum Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC58914  Gaultheria shallon Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC76367  Gaultheria shallon Teresa Prendusi 1981-7-23 357 Humboldt Near Black Mountain. 890 Comment
  UC1541491  Gaultheria shallon Harold E. Parks March 1934 4832 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove Comment
  HSC76623  Gayophytum diffusum Denis Kearns 1981-7-22 317 Humboldt Near Whiteys Peak. 1487 Comment
  HSC75456  Gayophytum diffusum subsp. parviflorum J. O. Sawyer 1980-7-18 3600 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC74457  Gayophytum heterozygum Gail Newton 1980-8-10 2013 Humboldt Near Blake Mtn. 1798 Comment
  UC205214  Gayophytum humile Chesnut and Drew July 1888 Humboldt S, Fork Mt. Comment
  UC154164  Gentiana affinis var. ovata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6199 Humboldt near Ferndale; Russ Ranch Comment
  SEINET196700  Gilia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  HSC100591  Gilia capitata Carl C. Marshall Jun 1885 103 Humboldt Eel River region. Comment
  SEINET3356154 Image available Gilia capitata H. E. Parks, J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  CAS-BOT-BC226150  Gilia capitata subsp. pacifica H. E. Parks; J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  UC1197926  Gilia capitata subsp. pacifica Joseph P. Tracy 1930-5-25 8725 Humboldt Bridgeville 198 Comment
  RSA742086  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt North Coast: Samoa Peninsula, near Eureka, along Hwy 255, 1.5 miles south of Samoa intersection, west side of highway 7 Comment
  UC23729  Gilia millefoliata Harley P. Chandler May, 1901 1135 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  JEPS79894  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  HSC89597  Gilia tricolor subsp. tricolor M. Roantree 1985-5-24 59 Humboldt S of Trinidad Head summit near cross Comment
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  SEINET12118385  Glehnia leiocarpa L. R. Abrams 1916-1 6140 Humboldt at Trinidad Comment
  CAS-BOT-BC218429  Glehnia littoralis subsp. leiocarpa A. A. Heller 1924-7-24 13882 Humboldt Dunes at Humboldt County camp 7 miles south of Trinidad Comment
  RSA80349  Glehnia littoralis subsp. leiocarpa F. W. Peirson 1923-7-11 3946 Humboldt 18 miles north of Eureka Comment
  HSC34278  Glyceria elata Ken Irwin 1975-8-13 Humboldt Grogans Hole Area Comment
  HSC35857  Glyceria elata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2059 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  UCD66779  Glyceria occidentalis August L. Hormay 1932-5-11 Humboldt Eureka, Arcata Swamp. Comment
  RSA151817  Glyceria striata H. K. Sharsmith, Francia Chisaki 1959-8-22 4756 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC98555  Goodyera oblongifolia Cara Witte 2007-9-3 643 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  UC582586  Gratiola ebracteata Joseph P. Tracy 1936-6-28 15022 Humboldt Bald Mountain , at Lake Prairie (at Lake Prairie) 1066 Comment
  CAS-BOT-BC304741  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  CAS-BOT-BC304757  Grindelia hirsutula Doris K. Kildale 1927-6-25 3554 Humboldt Shelter Cove Comment
  UC1552453  Grindelia hirsutula R. D. Goeden 1987-9-2 21 Humboldt on bank above Mattole Road; Cape Mendocino (Cape Ridge) 182 Comment
  SEINET11843448  Grindelia stricta subsp. venulosa F. H. Utech 1986-1 86 -410 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC57650  Hackelia micrantha G. L. Clifton, Griswold 1979-7-25 10820 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS67930  Hackelia micrantha Joseph P. Tracy 1932-7-17 10691 Humboldt head of Devil's Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC57955  Hastingsia alba G. L. Clifton, Griswold 1979-7-31 11642 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  SEINET2166159  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt Blue SLide, on Van Duzen River. Comment
  HSC96485  Helenium bolanderi Gordon Leppig 1997-6-19 453 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  HSC6065  Helminthotheca echioides D. E. Anderson 1963-10-16 2884 Humboldt Jacoby Creek Rd. Comment
  UCD132965  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  RSA255765  Hemitomes congestum Gary D. Wallace, S. Carlquist, G. Ansley Wallace 1972-6-1 1108 Humboldt Prairie Creek Redwoods St. Pk., E. of Park HQ. 73 Comment
  HSC103324  Hemizonella minima Erin Lonergan, Benjamin Hart 2007-6-4 1 Humboldt Coldsprings Camp, 6.5 mi. S of Hwy. 299 on Forest Service Road NF1. 1372 Comment
  CDA30696  Hemizonia congesta M. K. Beyers, I. Shepardson 2009-9-13 248 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  CAS-BOT-BC306035  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Northern Coast Ranges. Dobbyn Creek 152 Comment
  CAS-BOT-BC306036  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Northern Coast Ranges. Miranda; along South Fork of Eel River 121 Comment
  CAS-BOT-BC309982  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  UC195063  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1916-6-19 4708 Humboldt Laribee Creek 457 Comment
  UC495620  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  POM228359  Hemizonia tracyi S. K. Harris 1936-6-20 s.n. Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  RSA126141  Hemizonia tracyi Joseph P. Tracy 1923-7-4 6529 Humboldt Valley of South Yager Creek Comment
  RSA259569  Hemizonia tracyi Thomas W. Nelson, Jane, James Nelson 1975-6-21 1950 Humboldt Hwy 36, 5 miles east of Bridgeville Comment
Read comments
Jan 3 2011
  HSC56258  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-2 12401 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SBBG25781  Hesperocyparis macrocarpa E. R. Blakley 1966-8-17 6801 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UC1116245  Heterocodon rariflorum Joseph P. Tracy 1942-6-15 17158 Humboldt Garberville 304 Comment
  RSA47118  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 s.n. Humboldt Bruceland Bridge Comment
Read comments
Jul 24 2020
  SEINET3166724  Heterotheca oregona var. rudis Unknown 1986-8-18 8531 Humboldt Garberville. Gravel bar of S fork of Eel River near U.S.-101, at Bear Canyon Rd. Comment
  HSC96272  Heuchera micrantha J. Breton, A. Livingston 2005-6-15 11 Humboldt NE of Grouse Mtn. 1327 Comment
  UC902003  Heuchera micrantha Joseph P. Tracy 1947-4-27 17673 Humboldt roadside near top of Wolverton Gulch (1/2 mi w of tow) 152 Comment
  HSC98324  Hieracium albiflorum Jimerson, J. Pageau 1979-5-24 469 Humboldt Near Orleans 226 Comment
  HSC5825  Hieracium albiflorum David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC1069597  Hieracium albiflorum H. L. Person 1932-7-16 Humboldt highway n Trinidat; Rock Point Quad. Comment
  UC582410  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt near Ranger Station; Trinity Summit 1828 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
  CAS-BOT-BC316005  Hieracium nudicaule Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  HSC74410  Hieracium scouleri Gail Newton 1980-8-10 2024 Humboldt Near Blake Mtn. 1798 Comment
  HSC37926  Hirschfeldia incana Peter Sorensen 1976-5-28 Humboldt N Spit Comment
  HSC58657  Holcus lanatus G. L. Clifton 1979-7-31 11851 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET13009486  Holcus lanatus Kenneth W. Parker 1930-6-12 1016 Humboldt Blocksburg. Comment
  UCD84886  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka. 30 Comment
  CAS-BOT-BC149901  Holodiscus discolor Doris K. Kildale 1926-9-5 2658 Humboldt Lasseck's Peaks, Signal Peak 1791 Comment
  CAS-BOT-BC149902  Holodiscus discolor Doris K. Kildale 1927-7-17 3755 Humboldt Bug Creek 792 Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC666853  Holodiscus discolor Joseph P. Tracy 1936-8-7 15114 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  HSC102138  Holodiscus discolor var. discolor M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1042 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC101474  Hordeum brachyantherum subsp. brachyantherum J. P. Smith 2010-5-29 12887 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  HSC102144  Hordeum brachyantherum subsp. brachyantherum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1051 Humboldt Patterson Meadows 1566 Comment
  UC1103489  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-2 17094 Humboldt 1 mi E of town Alton 18 Comment
  HSC22746  Hordeum marinum subsp. gussoneanum D. E. Anderson 1970-6-14 5124 Humboldt 2 mi. E of Mad River Bridge in Butler Valley. Comment
  HSC104047  Hordeum murinum subsp. murinum Kyle Brown Apr 2015 31 Humboldt Along trail at Ma-le'l Dunes 3 Comment
  UC154227  Horkelia californica Joseph P. Tracy 1906-6-24 2503 Humboldt Region about Humboldt Bay (s slope of Humboldt Hill); Northern Coast Region, Humboldt Hill 152 Comment
  UC14220  Horkelia californica subsp. dissita Chestnut and Drew 1888-5-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC537962  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill rd. ca. 10.4 mi. E. of Hoopa and Hwy. 96. Comment
  HSC58539  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9469 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CHSC866  Hosackia rosea V. Holt 1941-5-30 Humboldt Comment
  SBBG64581  Hydrocotyle ranunculoides A. Keedy 1988-9-20 13 Humboldt Arcata Salt Marsh Project Comment
  UCSB22187  Hydrocotyle ranunculoides Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  UC1239759  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-11 10422 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  RSA298345  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes. 1585 Comment
  HSC56350  Hydrophyllum occidentale Griswold, Butler 1979-7-10 6300 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC35519  Hydrophyllum occidentale W. C. Blasdale 1896-6-6 Humboldt McBride's Comment
  UC204110  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Region 0 Comment
  JEPS1636  Hydrophyllum tenuipes Joseph P. Tracy 1925-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 457 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  HSC102178  Hypericum anagalloides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1091 Humboldt Patterson Meadows 1555 Comment
  HSC57341  Hypericum anagalloides Walter Overton, Butler 1979-7-26 10016 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  RSA246853  Hypericum calycinum R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35315 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC108651  Hypericum concinnum unknown 1148 Humboldt Eel R. 548 Comment
Read comments
Feb 5 2011
  SD93061  Hypericum perforatum W. Bertsch 1953-7-30 225 Humboldt Highway 101 at Dyerville. 60 Comment
  UC169053  Hypochaeris glabra Joseph P. Tracy 1912-7-25 3812 Humboldt Kneeland Prairie 762 Comment
  UC249878  Hypochaeris glabra Joseph P. Tracy 1924-5-17 6678 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  HSC60062  Hypochaeris glabra M. A. Baker 1978-5-6 491 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC311435  Hypochaeris radicata M. S. Jussel 1931-5-2 81 Humboldt 20 miles north of Garberville Comment
  CAS-BOT-BC311436  Hypochaeris radicata Ashley C. Browne 1936-6-10 s.n. Humboldt Patrick's Point State Park Comment
  UC1069673  Hypochaeris radicata H. L. Person 1932-7-16 L.H. 25 Humboldt Highway n Trinidad; Rock Point Quad. Comment
  CAS-BOT-BC123494  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Prairie Creek, near Davidson's. Comment
  UC302049 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek 152 Comment
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Feb 27 2012
  HSC99250  Iris chrysophylla T. Jimerson, J. Pageau 1979-6-13 551 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 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
  HSC47580  Iris douglasiana Sheila Logan 1978-4-10 176 Humboldt Redwood Park behind HSU campus Comment
  UC275571  Iris douglasiana Joseph P. Tracy 1924-9-21 6894 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC123359  Iris humboldtiana Alice Eastwood; John Thomas Howell 1937-6-24 4857 Humboldt Road to Horse Mt. Comment
  UC14927  Iris macrosiphon P. E. Goddard 1901-7-8 30 Humboldt Hupa Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  BLMAR99  Iris purdyi Jennifer Anthony-Wheeler 1994-6-8 99 Humboldt Red Mountain, growing among chapparel above bog 1097 Comment
  RSA135820  Iris purdyi E. K. Balls 1957-5-25 22605 Humboldt 12.1 miles southwest from Dinsmores, State Highway 36 335 Comment
  HSC65226  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 437 Humboldt Ishi Pishi Rd., 1.2 mi. S of jct. with FS Rd. 11N11, NW side of road, Orleans 271 Comment
  RSA30641  Iris tenax subsp. klamathensis Lincoln Constance, Reed C. Rollins 1942-5-12 s.n. Humboldt Klamath River 2 miles north of Orleans. 122 Comment
  SEINET12051377  Iris tenax subsp. klamathensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -314 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC73242  Iris tenuissima M. A. Baker 1980-5-18 1339 Humboldt Near Black Mtn. 792 Comment
  HSC44786  Iris tenuissima Maralyn O'Meara 1972-6-8 96 Humboldt Along Bald Hills Rd., 8 mi. E of junction with Hwy. 101 Comment
  UC936235  Isoetes howellii Joseph P. Tracy 1949-7-19 18398 Humboldt Grouse Mt., Mud Lake 1524 Comment
  UC1152073  Isolepis carinata Joseph P. Tracy 1948-5-31 17982 Humboldt 1/2 mi ne Garberville (on the road to Harris); ne of Garberville Comment
  CAS-BOT-BC112459  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  UC1115831  Isopyrum stipitatum Joseph P. Tracy 1939-4-2 16207 Humboldt Kneeland Prairie 762 Comment
  UC1192235  Jaumea carnosa Malcolm A. Nobs and S. Galen Smith 1949-8-3 1173 Humboldt salt marshes around Fields Landing Comment
  HSC5882  Jaumea carnosa H. E. Parks Aug 1941 24187 Humboldt Big Lagoon; Causeway, W end. Comment
  UC1199148  Jaumea carnosa J. P. Tracy 1901-8-7 1251 Humboldt salt marsh Samoa (immediate vicinity of Eureka) 0 Comment
  UC275455  Jaumea carnosa Joseph P. Tracy 1927-8-2 7222 Humboldt Big Lagoon Northern Coast Range 6 Comment
  HSC102931  Juncus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 934 Humboldt Patterson Meadows 1555 Comment
  HSC13983  Juncus balticus subsp. ater S. R. Johnson 1965-5-2 52 Humboldt 1 mi. N of Luffenholtz Beach Comment
  JEPS66922  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt Dyerville, Bull Cr. road and n bank of South Fork Eel River South Fork Eel River, Bull Creek Region Comment
  UC594245  Juncus bufonius S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3434 Humboldt nw slopes Buck Mountain 822 Comment
  UC1152110  Juncus covillei Joseph P. Tracy 1934-7-14 13401 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CHSC102918  Juncus effusus subsp. pacificus Peter F. Zika 2007-7-30 23328 Humboldt North Coast. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UC1152106  Juncus effusus subsp. pacificus Joseph P. Tracy 1930-11-9 9247 Humboldt just n Arcata (on Redwood Highway) Comment
  UC1152098  Juncus ensifolius Joseph P. Tracy 1938-7-4 15995 Humboldt Valley of South Yager Creek 762 Comment
  SD88349  Juncus falcatus Darley F. Howe 1972-6-30 Humboldt Trinidad. Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  HSC91872  Juncus hesperius E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC58027  Juncus laccatus G. L. Clifton 1979-7-31 11842 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC38189  Juncus lescurii Peter Sorensen 1976-7-14 Humboldt N spit Comment
  HSC39758  Juncus lescurii Peter Sorensen 1976-8-8 Humboldt Woodley Island Comment
  UCD150382  Juncus lescurii William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Freshwater Lagoon. Comment
  HSC58113  Juncus mertensianus G. L. Clifton, Griswold 1979-8-1 12069 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC57634  Juncus parryi G. L. Clifton, Griswold 1979-7-25 10791 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 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
  SEINET11788735  Juncus phaeocephalus J. P. Tracy 1934-1 13391 Humboldt Dow's Prairie 61 Comment
  RSA46967  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
Read comments
Mar 27 2012
  UC1222788  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19314 Humboldt 1 mi s mouth of Salmon River (along e side of Salmon River); Klamath River Comment
  NY790325  Keckiella lemmonii J. P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762.0 Comment
  RSA167285  Koeleria macrantha Joseph P. Tracy 1951-6-24 19541 Humboldt Kneeland Prairie; rockpile and Ashfield Butte 762 Comment
  UC187283  Koeleria macrantha Joseph P. Tracy 1905-6-11 2195 Humboldt bluff back Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC187287  Koeleria macrantha Joseph P. Tracy 1908-6 2778 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope of Buck Mountain 914 Comment
  HSC58117  Kyhosia bolanderi G. L. Clifton, Griswold 1979-8-1 12079 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  JEPS36746  Lactuca serriola Joseph P. Tracy 1926-9-6 7794 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  UC668198  Lagophylla ramosissima Joseph P. Tracy 1938-7-4 15993 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC337992  Lasthenia californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  UC1199134  Lasthenia californica subsp. californica Joseph P. Tracy 1925-5-30 7050 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  SD50721  Lathyrus latifolius Darley F. Howe 1959-8-4 2807 Humboldt 9 miles from Arcata on Hwy 299, dry hillside 121 Comment
  RSA406670  Lathyrus latifolius M. B. Dunkle 1934-8-18 4808 Humboldt Fortuna Comment
  HSC14744  Lathyrus littoralis J. W. Johnson 1962-5-6 1326 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC15522  Lathyrus littoralis Gary J. Stebbins 1970-4-18 70 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  UCD106379  Lathyrus littoralis Roman Gankin 1965-8-6 552 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA245212  Lathyrus littoralis J. E. Walters 1966-4-13 35 Humboldt 1/4 miles N. of Samoa Pulp Mill. 5 Comment
  JEPS79917  Lathyrus polymorphus Joseph P. Tracy 1932-7-20 10735 Humboldt just w of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC95459  Lathyrus sulphureus D. K. Imper 1993-6-25 Humboldt Table Bluff Ecological Reserve near Lighthouse Ranch, Table Bluff. 15 Comment
  UC931755  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19083 Humboldt 0.5 mi s Pepperwood (along Highway 101) Comment
  SEINET12158645  Lathyrus vestitus subsp. bolanderi J. P. Tracy 1949-1 18327 Humboldt on the Butter Valley Rd, 2miE of Kneeland 610 Comment
  POM92407  Lathyrus vestitus subsp. vestitus L. R. Abrams 1922-6-25 8245 Humboldt Near South Bay. Comment
  HSC26331  Layia carnosa Thomas W. Nelson 1971-4-16 381 Humboldt On dunes along the Samoa Peninsula adjacent to the Coast Guard Station Comment
  HSC34455  Layia carnosa J. P. Smith, J. O. Sawyer 1975-5-11 8078 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  JEPS40028  Layia gaillardioides Lincoln Constance 1934-6-3 804 Humboldt road from High Rock (on Redwood Hwy 1 mi n of Dyerville) to Horse Prairie; South Fork Eel River Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  UCD133993  Leontodon saxatilis H. S. Reed 1941-7-26 s.n. Humboldt near Trinidad. Comment
  UC1005671  Leptodactylon pungens Frank W. Gould 1939-5-30 823 Humboldt about 25 mi due e Eureka (top of Horse Mountain); top of Horse Mountain 1200 Comment
  CAS-BOT-BC226527  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N. of Garberville Comment
  SBBG64597  Leptosiphon androsaceus V. Duran 1933-5-10 3403 Humboldt near Blocksburg Comment
  HSC45056  Leptosiphon androsaceus R. Sutherland 1978-4-23 34 .23478 Humboldt 558 Comment
  HSC45590  Leptosiphon androsaceus Diane L. Reed 1978-5-27 126 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  HSC73540  Leptosiphon bolanderi Gail Newton 1980-7-14 1476 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC73451  Leptosiphon ciliatus Gail Newton 1980-7-14 1466 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  UC205156  Lessingia nemaclada Joseph P. Tracy 1919-9-14 5211 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  BLMAR147  Leucanthemum vulgare Donald Hazlett 1994-6-7 147 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UCR122365  Leucanthemum vulgare George K. Helmkamp, E. A. Helmkamp 2001-7-8 6977 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
  HSC89757  Leucanthemum vulgare M. Roantree 1985-5-15 49 Humboldt E side of Trinidad Head. Comment
  HSC102512  Lewisia triphylla M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1498 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  RSA10139  Leymus vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, south of point of the Cape 3 Comment
  RSA295817  Leymus vancouverensis Lyman Benson 1929-7-15 1818 Humboldt Clam Beach, Trinidad Comment
  CAS-BOT-BC436493  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt Humboldt Bay, near top of Humboldt Hill 152 Comment
  CAS-BOT-BC436494  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt North Yager Creek, at crossing of Kneeland to Bridgeville road Comment
  HSC76407  Ligusticum californicum Teresa Prendusi 1981-7-24 456 Humboldt Near Whiteys Peak 1585 Comment
  CAS-BOT-BC508391  Lilium columbianum Doris K. Kildale 1927-6-26 3596 Humboldt Patrick's Point Comment
  CAS-BOT-BC508400  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8260 Humboldt Between Trinidad and Big Lagoon Comment
  HSC35943  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2036 Humboldt Along Old Hwy. 101 N of Trinidad Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  HSC54016  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-12 7158 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC132962  Lilium rubescens Doris K. Kildale 1927-7-17 3748 Humboldt Bug Creek 792 Comment
  JEPS62029  Lilium rubescens Mrs. M. H. Manning 1901-7-27 319 Humboldt Bald Hills Comment
  HSC28137  Limnanthes douglasii J. D. Ackerman 1973-5-28 49 Humboldt Hwy. 299, Berry Summit. Comment
  HSC83032  Limonium californicum A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  HSC90329  Limonium californicum Jean Hanson 1980-6-22 103 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC95099  Limonium californicum Andrea Pickart 2002-6-27 121 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC1198579  Linanthus androsaceus Joseph P. Tracy 1942-6-28 17273 Humboldt Murphy Ridge Bald Mountain 914 Comment
  UC1198575  Linanthus bicolor Joseph P. Tracy 1933-7-3 12636 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC60871  Linanthus bicolor Harley P. Chandler Jun 1901 1417 Humboldt Klamath River North Coast Ranges 243 Comment
  SFV18546  Linaria canadensis E. Cohen 2002-4-15 23 Humboldt Eureka. Comment
  SEINET5740993 Image available Linnaea borealis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6105 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 2.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7NO4N, the road to Groves Prairie. The collection site is a short distance up this road.; Groves Prairie Comment
  SD42239  Linum lewisii Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  JEPS19999  Lipocarpha micrantha Joseph P. Tracy 1931-9-7 9650 A Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC72684  Listera caurina J. P. Smith 1977-7-3 9266 Humboldt Onion Lake Comment
  RSA12555  Listera caurina Carl B. Wolf 1934-7-2 5884 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC36649  Listera cordata var. nephrophylla J. D. Ackerman 1975-6-4 445 Humboldt 4 mi. E of Hwy. 101 on Bald Hills Rd., Redwood National Park 335 Comment
  HSC49390  Listera cordata var. nephrophylla R. York 1979-4-21 245 Humboldt Behind the town of Korbel, Camp Bauer Comment
  UC1196366  Lithocarpus densiflorus Joseph P. Tracy 1908-6 2846 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 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
  RSA697654  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC20213  Lithophragma affine Elrid H. Spinas 1948-6-16 49 Humboldt Horse Mtn. Comment
  HSC20217  Lithophragma affine J. P. Tracy 1950-6-25 1888712 Humboldt Burr Valley 1067 Comment
  UC1196501  Lithophragma affine Joseph P. Tracy 1921-4-30 6015 Humboldt Trinity River Valley near Willow Creek (Northern Coast Ranges); , Trinity River Valley, nr Willow Creek 152 Comment
  HSC70567  Lithophragma heterophyllum M. A. Baker 1980-7-19 3022 Humboldt Near Bret Hole. 1814 Comment
  RSA183524  Lithophragma heterophyllum D. E. Anderson 1965-5-8 3649 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  HSC45285  Logfia gallica R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  UC163597  Lolium multiflorum Jos. Burtt Davy 1899-5 5556 Humboldt Scotia Comment
  HSC47797  Lolium perenne Michael A. Watkins 1978-6-10 1 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC72637  Lolium perenne J. P. Smith 1977-7-3 9246 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS16097  Lomatium californicum Joseph P. Tracy July, 1908 2905 Humboldt ridge between Van Duzen & Mad Rivers near Low Gap; Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  UC21254  Lomatium dasycarpum subsp. dasycarpum Harley P. Chandler June, 1901 1445 Humboldt North Coast Ranges, Klamath R. Comment
  UC1197162  Lomatium dissectum var. dissectum Joseph P. Tracy 1927-5-15 8035 Humboldt near the South Fork Trinity R. Valley 182 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  RSA12522  Lomatium macrocarpum C. B. Wolf 1934-7-3 5914 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  UC1222608  Lomatium macrocarpum Joseph P. Tracy 1951-6-26 19574 Humboldt vicinity of Twin Lakes Comment
  UC673273  Lomatium macrocarpum Lincoln Constance and Reed C. Rollins 1942-5-12 2882 Humboldt 5 mi. n.e. Weitchpec (Klamath R. 1 mi. s. of Bluff Creek); Klamath-Siskiyou Region, Klamath R. 121 Comment
  HSC46922  Lomatium tracyi Brad Klipfel 1974-5-27 439 Humboldt Horse Mtn. Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  HSC45626  Lomatium utriculatum Diane L. Reed 1978-5-27 133 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  OBI81593  Lomatium utriculatum Coll. Tracey, Viola Call 1964-6-20 2272 Humboldt South-facing rocky outcropping near summit above Van Duzen river 7miles east of Bridgeville. 853 Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  UC1239548  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  CAS-BOT-BC240473  Lonicera hispidula Henry M. Pollard 1946-9-6 s.n. Humboldt Near Woodson Mine, Orleans region Comment
  CAS-BOT-BC240474  Lonicera hispidula A. A. Heller 1923-7-10 13799 Humboldt Along a small stream emptying into the Eel River between Scotia and Pepperwood Comment
  HSC60071  Lonicera hispidula var. vacillans M. A. Baker 1978-5-20 563 Humboldt W side of the Klamath River along Hwy. 96 Comment
  HSC81931  Lonicera hispidula var. vacillans Thomas W. Nelson, Jane P. Nelson 1979-7-3 4962 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  RSA239767  Lonicera involucrata Larry E. DeBuhr 1973-4-23 s.n. Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UCR27010  Lonicera involucrata A. C. Sanders 1981-8-4 2262 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  UCSB10475  Lonicera involucrata Phillips, Priscilla 1958-6-10 Humboldt 0.8 mi. south of intersection of Highway 101 and old highway parallel to it, which runs between Trinidad and Colonial Inn, on the old road Comment
  SBBG7364  Lonicera involucrata var. ledebourii H. and M. Dearing 1933-5-17 1854 Humboldt N of Arcata Comment
  UC719786  Lonicera involucrata var. ledebourii Rogers McVaugh 1941-8-3 6217 Humboldt ca. 1 1/4 mi s H.Q. Patrick's Point State Park Comment
  UC1197313  Lotus aboriginus Joseph P. Tracy 1927-8-22 8354 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  HSC104448  Lotus corniculatus Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC162838  Lotus denticulatus Joseph P. Tracy 1908-6 2756 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA27196  Lotus denticulatus T. R. Haig 1960-6-16 Humboldt 1 mile west of Bridgeville. 0 Comment
  CDA27276  Lotus micranthus T. C. Fuller 1958-6-17 1722 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC1197315  Lotus pinnatus J. P. Tracy 1901-6-30 1201 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12154237  Lotus pinnatus J. P. Tracy 1942-1 17134 Humboldt Englewood Prairie Comment
  UC1197286  Lotus purshianus var. purshianus Joseph P. Tracy 1908-6 2885 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC168985  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-24 3807 Humboldt Eureka Northern Coast Region 0 Comment
  UC303190  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  JEPS55746  Lotus purshianus var. purshianus W. L. Jepson 1936-8-12 17879 Humboldt Miranda South Fork Eel River Comment
  HSC48061  Lotus strigosus Thomas W. Nelson 1978-4-23 3887 Humboldt Junction of Copher and Samoa Rds., N of Samoa Comment
  UC162850  Lotus wrangelianus Joseph P. Tracy 1906-7-4 2521 Humboldt near Hydesville (on gravel bar of Yager Creek); Northern Coast Region, Yager Creek 60 Comment
  UCD107084  Ludwigia hexapetala Malcolm A. Nobs; S. Galen Smith 1949-8-9 1231 Humboldt On southern side of town of Blue Lake. Comment
  POM51553  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain. 1524 Comment
  UC1223213  Luina hypoleuca Joseph P. Tracy 1947-6-21 17716 Humboldt along Trinity Highway Willow Creek Canyon Comment
  UC1197253  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC169051  Lupinus albifrons Joseph P. Tracy 1912-8-3 3969 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC176296  Lupinus albifrons Joseph P. Tracy 1913-6-14 4133 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  SEINET12170729  Lupinus albifrons E. A. York 1990-1-10 2659 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC96261  Lupinus albifrons var. collinus Kaylea Eickhoff, Cara M. Witte 2005-6-24 15 Humboldt 13 mi. S of Hwy. 299 on NF1 1375 Comment
  HSC58413  Lupinus andersonii Griswold, Butler 1979-7-12 7173 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CDA27379  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  UC1197255  Lupinus arboreus J. P. Tracy 1912-3-31 3566 Humboldt Blue Lake 30 Comment
  UCSB23853  Lupinus arboreus J. R. Haller 1967-6-17 2180 Humboldt collected 10.0 mi N, along U S Highway 101 at Clam Beach County Park Arcata - Clam Beach County Park, U S Highway 101 and Arcata Comment
  POM349994  Lupinus benthamii var. benthamii Vera Townsend 1934-3-24 s.n. Humboldt Near Sequoia Comment
  HSC31789  Lupinus bicolor Donald Spalinger 1974-4-25 25 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  UC15950  Lupinus bicolor Harley P. Chandler May, 1901 1146 Humboldt Humboldt Bay; Humboldt Bay, North Coast Ranges 3 Comment
  POM10719  Lupinus bicolor H. P. Chandler 1901-05 128 Humboldt Humboldt Bay. 30 Comment
  HSC48616  Lupinus latifolius Mark Flippo 1978-5-29 93 Humboldt MKinleyville, Bella Vista Rd. Comment
  UCSB3308  Lupinus latifolius Keator, Glenn 1958-6-18 Humboldt Dyerville Honeydew Road Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC99444  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 94 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  UC427882  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley; in open meadows in Laribee Valley Comment
  UC157015  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1906-6-24 2495 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay 0 Comment
  BLMAR675  Lupinus rivularis Jennifer Wheeler 2013-6-7 675 Humboldt King range, Windy Point 110 Comment
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  SEINET12154787  Lupinus variicolor J. P. Tracy 1938-1 15940 Humboldt Brainards Point, betw Eureka and Arcata Comment
  HSC44560  Luzula comosa Brad Klipfel 1973-7-15 179 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58244  Luzula comosa G. L. Clifton, Griswold 1979-8-2 12415 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC183719  Luzula comosa Joseph P. Tracy 1912-6-2 3642 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC1152130  Luzula comosa Joseph P. Tracy 1929-4-28 8555 Humboldt near w side South Fork Trinity River (on Manzanita Flat); Trinity River Valley, near South Fork <Trinity River> 182 Comment
  CHSC60627  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain. 1432 Comment
  CAS-BOT-BC441228  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt North Coast Ranges: Willow Creek Canyon, near Ruby Creek 609 Comment
  HSC70988  Luzula parviflora Gail Newton 1980-7-20 1649 Humboldt Near Bell Swamps. 1426 Comment
  UC1103686  Luzula subsessilis Joseph P. Tracy 1921-4-24 5449 Humboldt Northern Coast Ranges. Phillipsville Flat South Fork Eel River 91 Comment
  HSC96476  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  RSA183532  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  UC577388  Lycopus americanus Joseph P. Tracy 1934-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  UC34916  Lysichiton americanus W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  HSC36094  Lysichiton americanus Michael L. Chase 1973-5-14 10 Humboldt Along Van Duzen at junction with Yager Creek 37 Comment
  UC1198469  Lythrum hyssopifolia Joseph P. Tracy 1942-6-15 17117 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  CDA5135  Lythrum hyssopifolia T. C. Fuller 1962-8-6 9356 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC12034  Lythrum hyssopifolia D. Santana 1970-10-28 82 Humboldt 3 mi. S of Trindad. Comment
  HSC46151  Lythrum hyssopifolia J. P. Smith 1973-5-26 6814 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA0015874  Lythrum hyssopifolia H. M. Pollard 1948-7-21 s.n. Humboldt Along Klamath River near Orleans. Comment
  CAS-BOT-BC342797  Madia elegans Doris K. Kildale 1928-7-24 5283 Humboldt Horse Mountain 914 Comment
  UC195538  Madia elegans Joseph P. Tracy 1908-6 2683 Humboldt near bridge across Little Van Duzen (nw slope of Buck Mountain); Northern Coast Ranges, Buck Mountain 762 Comment
  HSC35609  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  JEPS40214  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt at the crossing of Kneeland Road Northern Coast Ranges, Lawrence Creek 609 Comment
  UC1199395  Madia gracilis Joseph P. Tracy 1919-7-20 5182 Humboldt Mount Pierce Northern Coast Ranges 914 Comment
  UC165190  Madia gracilis Joseph P. Tracy 1911-6-25 3250 Humboldt at Bucksport; Eureka 0 Comment
  RSA0011631  Madia sativa R. F. Thorne, Percy C. Everett 1965-8-7 35216 -b Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC508515  Maianthemum dilatatum Doris K. Kildale 1925-12-20 1342 Humboldt Big Lagoon Comment
  CAS-BOT-BC508516  Maianthemum dilatatum H. E. Parks 1932-5-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  SD46488  Maianthemum dilatatum E. K. Balls, L. W. Lenz 1956-6-12 21668 Humboldt 4.7 miles south of Humboldt-Del Norte County line, U.S. Highway 101, Arcata to Crescent City. O forest floor in deep humus. 60 Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  CAS-BOT-BC511459  Maianthemum racemosum subsp. amplexicaule Huron H. Smith 1911-6-6 3795 Humboldt Field Museum of Natural History, Vances Camp 19 Comment
  RSA347055  Maianthemum racemosum subsp. amplexicaule Lyman Benson 1928-7-12 494 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC58150  Maianthemum stellatum G. L. Clifton, Griswold 1979-8-2 12200 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC97576  Maianthemum stellatum Cara Witte 2007-5-29 134 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  RSA0009485  Maianthemum stellatum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville. Comment
  HSC70360  Malacothrix floccifera Gail Newton 1980-6-7 141 Humboldt Near Brush Mtn. 1128 Comment
  HSC44103  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1977-8-6 3686 Humboldt Along Rd. 2S08 near Alder Spring 1524 Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  HSC7029  Marah oregana D. A. Shally 1965-5-15 46 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  UC1409146  Marah oregana Larry DeBuhr, Gary Wallace 1973-5-19 1116 Humboldt Gold Bluff Beach Prairie Creek Redwood State Park Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC552701  Melica bulbosa Joseph P. Tracy 1935-7-24 14194 Humboldt near Trinity Summit, Ranger Station; Trinity Summit 1828 Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  POM161909  Melica californica var. nevadensis Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  CAS-BOT-BC281326  Melica harfordii Harley P. Chandler 1901-6-1 1477 Humboldt North Coast Ranges. Klamath River 365 Comment
  HSC75447  Melica spectabilis J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET200110 Image available Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Trinity Summit head of Brett Hole 1830 Comment
  HSC10348  Melica subulata G. N. Bos 1965-5-15 253 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  HSC97956  Melica subulata Cara Witte, Michael Scott 2007-6-22 345 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1494 Comment
  UC552707  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda; along South Fork of Eel River 121 Comment
  HSC10365  Melica subulata D. C. Juve 1964-5-16 53 Humboldt Rousseau Ranch near Kneeland. Comment
  UC1191792  Mentha canadensis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1241 Humboldt Town of Blue Lake; pond on s side Comment
  HSC23730  Mentha pulegium Tim Baroni 1971-7-5 99 Humboldt Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  JEPS42849  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1932-7-25 16397 Humboldt Eel River, Old Camp Grant Comment
  HSC28256  Menziesia ferruginea subsp. ferruginea Gary S. Lester 1973-12-2 59 Humboldt Humboldt State University Campus, Arcata Comment
  CAS-BOT-BC429181  Micranthes oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  BLMAR735  Micropus californicus Jennifer Wheeler 2015-5-12 735 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  UC1199338  Micropus californicus var. californicus Joseph P. Tracy 1919-5-31 5150 Humboldt near Mouth of Willow Creek; Northern Coast Region, Valley of the Trinity River 152 Comment
  UC1239522  Microseris douglasii subsp. douglasii Joseph P. Tracy 1938-6-9 15887 Humboldt 3 mi w Harris 914 Comment
  UC682105  Microseris laciniata subsp. leptosepala G. L. Stebbins Jr. with A. A. Beetle 1942-6-1 3276 Humboldt 1/2 mi n Weitchpec 243 Comment
  HSC6101  Microseris nutans W. K. Parks 1933-7-15 5263 Humboldt South Fork Mtn. 1677 Comment
  HSC37232  Mimulus cardinalis Lon Hall 1975-6-20 404 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  UC535721  Mimulus cardinalis Eleanor Armstrong 1934-7-23 1140 Humboldt Richardson Grove <South Fork Eel> River 121 Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12269862  Mimulus guttatus J. P. Tracy 1950-1 18745 Humboldt near Capetown, Cape Ridge, 1 mi E of Cape Mendocino 152 Comment
  UC673101  Mimulus guttatus Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16661 Humboldt head Willow Creek; Trinity Highway 762 Comment
  UC535723  Mimulus inodorus Eleanor Armstrong 1934-8-18 1138 Humboldt Richardson Grove 121 Comment
  JEPS10789  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1196811  Mimulus kelloggii Joseph P. Tracy 1908-6 2938 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC41888  Mimulus kelloggii C. C. Marshall 1888-1 Humboldt Comment
  UC444807  Mimulus kelloggii Joseph P. Tracy July, 1908 2760 Humboldt near Low Gap (ridge between Van Duzen River and Mad River) 914 Comment
  HSC76046  Mimulus moschatus Overton, Butler 1979-8-2 12559 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC74453  Mimulus nanus var. nanus Gail Newton 1980-8-10 1994 Humboldt Near Blake Mtn. 1798 Comment
  JEPS28973  Mimulus nanus var. nanus Joseph T. Gregory 1933-7-15 438 A Humboldt near MacKay Camp; South Fork Mt. 1737 Comment
  HSC102508  Mimulus primuloides var. primuloides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1493 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55988  Mimulus primuloides var. primuloides Overton, Butler 1979-7-31 11403 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  POM208986  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Lookout Point, Look Prairie; Bull Creek watershed; Humboldt Redwood Park. 381 Comment
  UC1223239  Minuartia douglasii Joseph P. Tracy 1950-7-6 18993 Humboldt 2 mi s Burr Valley (on the Albee Rd, Bridgeville to Blocksburg) 1158 Comment
  HSC57617  Minuartia nuttallii subsp. gregaria G. L. Clifton, Griswold 1979-7-25 10742 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC74236  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2794 Humboldt Near Red Mtn. 1341 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
  JEPS49685  Mitella caulescens Joseph P. Tracy 1924-6-1 6692 Humboldt Lawrence Creek Northern Coast Ranges (at the crossing of the Kneeland Rd.) 609 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  CAS-BOT-BC433010  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt Along trail from Hoopa to the summit. Trinity Summit. Near Box Camp 1524 Comment
  JEPS43803  Mitella ovalis Lincoln Constance 1934-6-15 892 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek Region (summit) 975 Comment
  JEPS49683  Mitella ovalis Jos. P. Tracy 1901-12-13 818 Humboldt Eureka Comment
  UC1198864  Mitella ovalis Joseph P. Tracy 1906-5-6 2439 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  CAS-BOT-BC433029  Mitella ovalis Doris K. Kildale 1927-6-25 3577 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC20238  Mitella ovalis D. E. Anderson 1964-2-23 2903 Humboldt 7 mi. E of Carlotta along Hwy. 36; above Van Duzen River Comment
  HSC76262  Mitella trifida Teresa Prendusi 1981-7-21 270 Humboldt Near Whiteys Peak 1646 Comment
  HSC38514  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-6-18 - 1086 Humboldt Horse Mtn. Comment
  UC213510  Monardella odoratissima subsp. glauca Joseph P. Tracy 1919-9-22 5262 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC215569  Monardella odoratissima subsp. pallida Doris K. Kildale 1925-8-18 1229 Humboldt Trinity Summit 1828 Comment
  CAS-BOT-BC220517  Monardella villosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC100506  Monardella villosa Carl C. Marshall Jun 1886 276 Humboldt Hoopa. Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  UC177170  Monardella villosa subsp. villosa Joseph P. Tracy 1912-8-1 3961 Humboldt Opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC65194  Monotropa hypopitys T. Jimerson, J. Pageau, L. Banta 1979-6-18 925 Humboldt Waterman Ridge, at the end of FS 7N02, Willow Creek Comment
  UC183608  Montia chamissoi Joseph P. Tracy 1913-6-17 4169 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC673010  Montia fontana Joseph P. Tracy 1933-6-13 12584 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  JEPS43192  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC33082  Montia parvifolia Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  JEPS43291  Montia parvifolia W. L. Jepson 1902-6-30 1961 Humboldt from Ukiah to the Hupa Indian Reservation (Redwood Creek); Redwood Creek Comment
  HSC75443  Muhlenbergia filiformis J. O. Sawyer 1980-7-18 3598 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC526746  Muhlenbergia filiformis Joseph P. Tracy 1933-7-25 12833 Humboldt moist gravelly flat North Coast Ranges, Grouse Mountain 1524 Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  HSC48727  Myriophyllum sibiricum W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  CAS-BOT-BC7180  Myrrhis bolanderi Henry Nicholas Bolander 6525 Humboldt Lambert's Lake Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  JEPS70349  Navarretia intertexta Milo S. Baker 1923-7-19 26 Humboldt Wilders (= Carlotta) Wilders Comment
  RSA89564  Navarretia intertexta P. A. Munz 1954-7-23 19863 Humboldt 1 mile west of Bridgeville Comment
  UC1197894  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-8-30 13055 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  UCR30859  Navarretia squarrosa A. C. Sanders 1981-8-6 2308 Humboldt Russ Park, City of Ferndale 46 Comment
  HSC27618  Navarretia squarrosa Thomas W. Nelson 1973-7-24 1100 Humboldt Flood plain of the Mad River at the Carson R.R. bridge 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
  UC1198519  Navarretia tagetina Joseph P. Tracy 1934-7-9 13344 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  SEINET10873102  Nemacladus capillaris Tracy 1908-6-27 TRACY 2842 Humboldt Northwest slope of Buck Mountain 1219 Comment
  HSC13570  Nemophila heterophylla Doris K. Kildale 1926-4-25 1802 Humboldt Willow Creek Flat 152 Comment
  UC35549  Nemophila menziesii var. atomaria Mary H. Manning Humboldt Hupa Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  HSC34946  Nemophila menziesii var. atomaria Robert M. Specht 1975-4-9 120 Humboldt 2 3/4 mi. N of Trinidad at Scotty Point 30 Comment
  HSC58023  Nemophila parviflora G. L. Clifton 1979-7-31 11829 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC219408  Nemophila parviflora Alice Eastwood 1943-6-10 18979 Humboldt Landsdale Grove, Redwood Highway Comment
  UC1239746  Nemophila parviflora Joseph P. Tracy 1906-4-15 2409 Humboldt near Anderson's Ranch (Bald Mt., region about Humboldt Bay, Northern Coast Region); Northern Coast Region, Humboldt Bay region, Bald Mt. 0 Comment
  UC146184  Nemophila pedunculata Joseph P. Tracy 1906-5-6 2434 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC1239687  Nepeta cataria Joseph P. Tracy 1930-8-17 9155 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA43880  Nicotiana acuminata H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  UC73585  Nicotiana quadrivalvis var. quadrivalvis Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5709 Humboldt Hoopa Valley Comment
  CAS-BOT-BC60545  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie - summit rock pile. 853 Comment
  JEPS11312  Nuttallanthus texanus Joseph P. Tracy 1918-5-5 4921 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC142299  Oemleria cerasiformis C. Hart Merriam 1921-7-8 s.n. Humboldt Fortuna Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  HSC79334  Oemleria cerasiformis D. H. Norris 1970-5-20 12218 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  UC902146  Oemleria cerasiformis Joseph P. Tracy 1946-5-30 17550 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  CDA38491  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt Arcata. 0 Comment
  UC642344  Oenanthe sarmentosa Joseph P. Tracy 1938-8-20 16123 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  HSC16488  Oenothera wolfii D. E. Anderson 1962-7-5 2246 Humboldt Luffenholtz Comment
  RSA21623  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC1196944  Oenothera wolfii Joseph P. Tracy 1927-7-24 8302 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC1197444  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1947-7-5 17821 Humboldt Trinity Summit. Near Box Camp. Comment
  HSC100092  Orthilia secunda Jimerson, J. Pageau 1979-6-12 538 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  HSC55013  Orthilia secunda G. L. Clifton 1979-7-31 11395 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  POM296047  Orthocarpus erianthus var. gratiosus S. K. Harris 1942-6-10 1474 Humboldt Bear River Ridge. 457 Comment
  RSA80246  Orthocarpus erianthus var. gratiosus F. W. Peirson 1941-7-28 13107 Humboldt Along road to Patrick Point, State Park. Comment
  HSC56175  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-8-1 12082 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA249513  Osmorhiza berteroi R. F. Thorne, P. Everett 1965-8-5 35129 Humboldt Wailaki Recreation site. 518 Comment
  HSC56230  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-8-2 12298 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS14241  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  HSC32844  Osmorhiza purpurea Thomas W. Nelson, Jane P. Nelson 1973-5-28 945 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC21585  Osmorhiza purpurea T. W. Beck 1963-5-10 49 Humboldt Camp Bauer, Korbel Comment
  UC1197418  Oxalis albicans subsp. pilosa Joseph P. Tracy 1927-4-2 7872 Humboldt Philipsville North Coast Ranges (South Fork of Eel River) 121 Comment
  HSC33742  Oxalis articulata subsp. rubra John Palmer 1975-5-24 374 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  SEINET3347445 Image available Oxalis corniculata Joseph P. Tracy 1912-6-9 3682 Humboldt Alton 30 Comment
  UC34654  Packera bolanderi var. bolanderi Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC1145218  Panicum acuminatum var. acuminatum Joseph P. Tracy 1942-7-18 17286 Humboldt 1/2 mi ne Garberville; ne of Garberville 304 Comment
  UC1254537  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt 5 mi s Garberville (bank of South Fork Eel River at Hwy 101); bank of S Fk Eel River Comment
  CHSC79889  Parapholis incurva Gordon Leppig; Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad, Trinidad Harbor, UTM zone 10, 4546N, 404E. 3 Comment
  RSA181631  Parentucellia viscosa Doris K. Niles 1950-6-1 7 Humboldt Island in Eel River, Niles field. Comment
  POM126123  Paspalum distichum Joseph P. Tracy, H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon 6 Comment
  JEPS9618  Paxistima myrsinites Joseph P. Tracy 1933-4-30 6042 Humboldt ridge n. of Willow Creek between Willow and Campbell Creeks (Brannan Mt.); Brannan Mt. 914 Comment
  UC169889  Paxistima myrsinites Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5655 Humboldt Hoopa Mt. Comment
  UC90221  Pedicularis groenlandica Joseph P. Tracy 1947-7-5 17824 Humboldt at Box Camp Box Camp; Trinity Summit 1463 Comment
  HSC56186  Penstemon anguineus Gilbert Muth 1979-8-1 12118 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC56254  Penstemon anguineus Walter Overton 1979-8-1 12387 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  RSA425608  Penstemon anguineus Francis W. Pennell, Joseph P. Tracy 1940-7-7 26092 Humboldt Grouse Mountain, w. of Salyer. 1372 Comment
  JEPS28975  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  JEPS11630  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-2 15395 A Humboldt on ridge 2 mi e Groves Prairie; Trinity Summit 1524 Comment
  UC146247  Penstemon rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  SEINET200760  Perideridia gairdneri Joseph P. Tracy 1948-9-5 18167 Humboldt Happy Camp Mountain. In Trinity Summit Range 6 miles NE of Hawkins Bar. 1280 Comment
  HSC76403  Perideridia kelloggii M. A. Ericksen 1981-8-21 1085 Humboldt Near Dan East Cabin 1609 Comment
  HSC45397  Perideridia oregana Thomas W. Nelson, Jane P. Nelson 1977-9-3 3721 Humboldt N of Bear Creek 1494 Comment
  CAS-BOT-BC413506  Persicaria amphibia Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  HSC6054  Petasites frigidus var. palmatus S. J. Hawks 1965-4-6 18 Humboldt Luffenholtz Beach Comment
  RSA183572  Petasites palmatus R. I. Bonn 1965-3-5 4 Humboldt 4 miles west of Arcata on Samoa Road. Comment
  UCR13417  Petasites palmatus T. Wetherwax 1973-4-1 730401- 2 Humboldt Old U.S. Hwy 101, just north of Myer's Flat. 152 Comment
  HSC76574  Phacelia bolanderi Denis Kearns 1981-7-8 142 Humboldt Near Bluff Creek 622 Comment
  JEPS1444  Phacelia bolanderi Lincoln Constance 1934-5-26 687 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek region 45 Comment
  UC169010  Phacelia bolanderi Harley P. Chandler June 1901 1456 Humboldt between Bluff Creek and Orleans; North Coast Ranges 304 Comment
  HSC65624  Phacelia californica J. P. Smith 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC99465  Phacelia heterophylla subsp. virgata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 119 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1051817  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 272 Humboldt near railroad station; Alton Comment
  UC671691  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  JEPS1045  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  UCD88333  Phalaris angusta A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3465 Humboldt 1 mile E of Alton. Comment
  UC526833  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road Bald Mt.; North Coast Ranges, Bald Mt. 609 Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  CAS-BOT-BC76556  Philadelphus lewisii W. R. Dudley 1899-6-21 s.n. Humboldt Near Eel River below Dyerville Comment
  SDSU904  Philadelphus lewisii Harvey 1938-8-14 2335 Humboldt US 299 Comment
  UC902079  Philadelphus lewisii Joseph P. Tracy 1949-9-1 18534 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA0046936  Philadelphus lewisii Lyman Benson 1928-7-10 397 Humboldt Hills by Humboldt Bay, Fortuna. Mouth of Eel River. 30 Comment
  RSA0057780  Philadelphus lewisii Jane Turner, Francis M. Ball 1962-7-10 1145 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  HSC58543  Phleum alpinum Overton, Butler 1979-7-23 9546 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  UC34068  Phleum pratense J. P. Tracy 1900-7-12 896 Humboldt immediate vicinity Eureka 0 Comment
  RSA183512  Phlox adsurgens D. E. Anderson 1965-5-15 3693 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  HSC102090  Phyllodoce empetriformis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 993 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET3290582 Image available Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad Comment
  CAS-BOT-BC140585  Physocarpus capitatus Doris K. Kildale 1926-3-26 1651 Humboldt Old Fortuna Road 30 Comment
  CAS-BOT-BC140586  Physocarpus capitatus Doris K. Kildale 1926-5-15 3158 Humboldt Petrolia Bridge, Mattole River Valley Comment
  UCSB2830  Physocarpus capitatus Phillips, Priscilla 1958-6-9 Humboldt Biship Pina Lodge, 2 mi. n. of Trinidad Comment
  CHSC81  Picea sitchensis M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  RSA85509  Picea sitchensis G. R. Campbell 1954-3-24 19024 Humboldt 23.4 miles N of Petrolia on Old Coast Road toward Ferndale. Comment
  UCD134684  Picea sitchensis Jo Ann Olson; Gary R. Robbins 1969-4-26 35 Humboldt North plateau above Fern Canyon, Prairie Creek Redwoods State Park. 60 Comment
  HSC1475  Pinus contorta Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC95835  Pinus contorta var. contorta Will Ferrand 2002-4-27 36 Humboldt 300 ft W of intersection of Samoa Blvd. and Lupine Dr. 9 Comment
  POM264447  Pinus contorta var. contorta H. E. Parks, S. T. Parks 1938-03 24125 Humboldt Spruce Cove, Trinidad. 61 Comment
  RSA46891  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lasseck s Peaks Comment
  HSC98813  Pinus monticola Cara Witte 2008-7-7 835 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, Forest Service Roads 6N36 and 6N38. 1415 Comment
  CAS-BOT-BC79031  Pinus ponderosa Doris K. Kildale 1927-5-5 3108 Humboldt Elk Ridge Comment
  HSC37665  Pinus ponderosa R. Sutherland 1976-8-21 Humboldt Bulk Collection # 108 726 Comment
  HSC44053  Pinus ponderosa Thomas W. Nelson, Jane P. Nelson 1977-4-23 3344 Humboldt Tributary to Blanket Creek 1463 Comment
  HSC98598  Pinus ponderosa var. ponderosa Cara Witte 2008-7-10 859 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from Forest Service Road 4N06. 1241 Comment
  HSC1574  Pinus radiata R. A. Magie 1964-5-3 45 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  UC176371  Piperia michaelii Joseph P. Tracy 1912-7-21 3763 Humboldt Alton Northern Coast Ranges 30 Comment
  BLMAR587  Piperia unalascensis Jennifer Wheeler 2010-7-13 587 Humboldt King range, along Panther Gap Road 792 Comment
  HSC35168  Pityopus californicus S. Veirs, G. Lester, R. Yearout 1975-7-10 744 Humboldt Redwood National Park, Gann's Woods. 366 Comment
  HSC70400  Plagiobothrys bracteatus M. A. Baker 1980-6-7 1845 Humboldt Near Ammon Creek 732 Comment
  UC1222229  Plagiobothrys bracteatus Joseph P. Tracy 1948-6-13 18031 Humboldt on Larrabee Creek Road around pool (halfway between Bridgeville and Blocksburg) Comment
  CAS-BOT-BC228214  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  CAS-BOT-BC228213  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  HSC44635  Plagiobothrys nothofulvus Diane L. Reed 1978-5-7 61 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  POM160833  Plagiobothrys reticulatus Joseph P. Tracy 1918-7-5 2010 Humboldt White Thorn Valley. 305 Comment
  UC1239610  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-21 14997 Humboldt Iaqua 609 Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  UC526825  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1932-6-26 10274 Humboldt Fort Baker Ranch North Coast Ranges, Fort Baker Ranch 762 Comment
  JEPS14281  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  SJSU11078  Plantago maritima H. T. Harvey 1977-7-5 602 Humboldt Elk R Spit, Humboldt Bay Comment
  UC1196131  Plantago maritima var. californica Joseph P. Tracy 1927-6-8 8108 Humboldt Trinidad 30 Comment
  SEINET4086441  Plantago purshii O. M. Clark 1932-1 1174 Humboldt South Eureka. Comment
  JEPS6471  Plantago subnuda Rimo Bacigalupi and G. T. Robbins 1954-8-10 4760 Humboldt 0.4 mi s south boundary marker for Dry Lagoon Beach (along U.S. Highway 101); Dry Lagoon Beach Comment
  HSC36625  Platanthera dilatata var. leucostachys J. D. Ackerman 1975-7-11 539 Humboldt South end of Big Lagoon, near the boat ramp Comment
  JEPS49012  Platanthera sparsiflora Hilda W. Grinnell 1932-7-19 28 Humboldt boggy meadows near Camp McKay; So. Fork Mt. Comment
  CAS-BOT-BC91637  Platystemon californicus M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka. Comment
  UC146076  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  UC1540409  Platystemon californicus Gary L. Hannan 1976-5-25 166 Humboldt New Bavy Base Road, 6.6 km S of bridge to Eureka Comment
  UC718183  Plectritis brachystemon Carl B. Wolf 1937-6-14 8814 Humboldt North Coast Range, Kneeland Prairie Kneeland Prairie; North Coast Range, Kneeland Prairie 822 Comment
  UC1239606  Plectritis congesta Joseph P. Tracy 1923-5-20 6216 Humboldt Kneeland Prairie 762 Comment
  UC416757  Plectritis congesta Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  HSC95648  Plectritis congesta Andrea Pickart 2002-4-3 34 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  UC1239574  Plectritis congesta Joseph P. Tracy 1916-4-30 4680 Humboldt Northern Coast Ranges, around Humboldt Bay, Salmon Creek Valley Salmon Creek Valley; Northern Coast Ranges, Salmon Creek Valley 60 Comment
  UC1103802  Pleuropogon refractus Joseph P. Tracy 1918-4-28 4886 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  CAS-BOT-BC254713  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  CAS-BOT-BC254714  Poa bolanderi Joseph P. Tracy 1930-7-16 8902 Humboldt South Fork Mountain: near McKay Camp 1676 Comment
  RSA10141  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  RSA44528  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  UC525632  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 60 Comment
  CAS-BOT-BC255122  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10684  Poa confinis R. D. Rogers 1964-4-10 6 Humboldt N Spit, Humboldt Bay. Comment
  HSC10688  Poa confinis D. B. Bader 1963-4-15 23 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  SEINET10822289  Poa confinis Joseph P. Tracy 1905-4-30 Tracy 278 Humboldt Sand dunes of Ocean Beach. Comment
  UC569487  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle 4 Comment
  CAS-BOT-BC255852  Poa kelloggii John Thomas Howell 1954-4-24 29151 Humboldt Bull Creek Flat Comment
  UC1103184  Poa kelloggii J. P. Tracy 1901-6-16 1151 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC254280  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  RSA28797  Poa macrantha H. E. Parks 1934-05 4805 Humboldt Little River lagoon Comment
  HSC10771  Poa pratensis R. V. Papike 1962-5-25 32 Humboldt Arcata. 91 Comment
  HSC98173  Poa pratensis R. D. Modafferi 1965-5-13 77 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UC1103178  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad, bluffs facing ocean Trinidad; Northern Coast Region 60 Comment
  UC604642  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, open flat by old Strong's District School House, 5 miles east of town 45 Comment
  SEINET1004839  Polygala cornuta var. cornuta Joseph P. Tracy 1926-1 7744 Humboldt Trinity River Valley, Near the south fork 183 Comment
  UC672946  Polygonum amphibium Joseph P. Tracy 1934-7-20 13467 Humboldt Big Lagoon; edge of tule swamp 3 Comment
  UC275278  Polygonum aviculare subsp. depressum Joseph P. Tracy 1924-8-24 6826 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1116243  Polygonum californicum Joseph P. Tracy 1942-9-6 17305 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  JEPS50516  Polygonum convolvulus Milo S. Baker 1923-8-5 176 Humboldt Stone Lagoon; in potato field Comment
  UC1198076  Polygonum davisiae Joseph P. Tracy 1932-7-12 10482 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC54501  Polygonum douglasii G. L. Clifton, Griswold 1979-7-26 9363 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC146188  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1908-6 2766 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC672957  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-7-17 9015 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC55190  Polygonum minimum G. L. Clifton, Griswold 1979-8-2 12250 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC45472  Polygonum minimum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4392 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  BLMAR616  Polygonum paronychia Jennifer Wheeler 2011-5-20 616 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  HSC17518  Polygonum paronychia S. J. Hawks 1965-3-9 44 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  RSA191950  Polygonum paronychia Robert F. Thorne 1957-9-3 19013 Humboldt Little River Beach, few miles S of Trinidad. Comment
  SBBG1702  Polygonum paronychia H. and M. Dearing 1939-5-24 3427 Humboldt Cape Mendocino Beach Comment
  HSC98594  Polygonum phytolaccifolium Cara Witte 2007-7-11 506 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC419854  Polygonum polygaloides subsp. confertiflorum Alice Eastwood; John Thomas Howell 1937-6-23 4812 Humboldt Little Van Duzen River Comment
  UC672951  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1225799  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt 1/2 mi s mouth of Elk River 6 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  UC1222471  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1947-8-24 17923 Humboldt on Box Camp Trail 1/2 mi w summit; Trinity Summit 1676 Comment
  HSC17537  Polygonum spergulariiforme Larry Berti 1968-10-20 Humboldt Along the Van Duzen River Comment
  SEINET3404070 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  HSC1139  Polypodium californicum J. W. Johnson 1962-4-10 1233 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC37827  Polypodium californicum Thomas W. Nelson, Jane Nelson 1976-2-21 2250 Humboldt Tish-Tang campground Comment
  CAS-BOT-BC76842  Polypodium glycyrrhiza Ira L. Wiggins 1957-6-20 14134 Humboldt Forest, east side of highway, Trinidad. Comment
  CAS-BOT-BC76843  Polypodium glycyrrhiza Carl D. Duncan 1920-9-22 s.n. Humboldt Supply Creek, Hoopa Comment
  HSC67085  Polypodium glycyrrhiza Richard Spjut 1980-5-20 6199 Humboldt 2 mi. W of Willow Creek along Hwy. 299 below Boise Campground near stream 305 Comment
  SEINET10530419  Polypodium glycyrrhiza Mary Susan Taylor 1982-10-24 Taylor 5184 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  SBBG34260  Polypodium scouleri M. Cady 1937-12-28 Humboldt Trinidad Comment
  HSC1116  Polypodium scouleri Gene S. Van Horn 1962-5-26 33 Humboldt 250 E 17th St., Arcata 61 Comment
  HSC1130  Polypodium scouleri W. R. Supernaugh, Jr. 1964-12-11 14 Humboldt 300 yards S of Trinidad Harbor 9 Comment
  SEINET3111376  Polypodium scouleri Unknown 1969-3-30 Humboldt Humboldt State University; Ecol Project site. Comment
  UC1103193  Polypogon interruptus Joseph P. Tracy 1927-8-7 8320 1/2 Humboldt opposite mouth of Willow Creek Lack Pond (in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC38330  Polypogon monspeliensis P. D. Sorensen 1976-6-11 Humboldt King Salmon. Comment
  HSC45224  Polypogon monspeliensis M. Alcasas 1978-5-27 106 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  HSC79387  Polypogon monspeliensis Kenneth Clark 1979-7-1 459 Humboldt Shelter Cove. One beach at base of cliffs; first reef of Point Delgada headlands. 5 Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  UCD91219  Polypogon monspeliensis Linda M. Barker 1976-6-1 1552 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSC000003  Polypogon monspeliensis H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 15 Comment
  HSC46091  Polystichum imbricans J. P. Smith, Steve Selva 1970-6-14 3814 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1223547  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1951-6-24 19540 Humboldt near Ashfield Butte Ashfield Butte; Kneeland Prairie 762 Comment
  RSA44515  Polystichum munitum Henry M. Pollard 1947-8-28 s.n. Humboldt Perch Creek Canyon, Mount Orleans Comment
  UCD136553  Polystichum munitum K. Esau 1934-5-8 s.n. Humboldt Near Fort Seward. 457 Comment
  UCSB8319  Polystichum munitum Robbins, G. 1936-8-1 Humboldt Near Carlotta. Comment
  CAS-BOT-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  HSC31655  Populus trichocarpa Timothy B. Devine 1974-5-4 325 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  HSC69694  Populus trichocarpa R. Kalal 1980-6-8 11 Humboldt Pump Station #1, along the Mad River 14 Comment
  UC1196668  Populus trichocarpa E. Ethel Tracy 1918-4-20 Humboldt Scotia Northern Coast Ranges, on Eel River (on Eel River) 30 Comment
  UC205456  Portulaca oleracea Joseph P. Tracy 1919-9-13 5194 Humboldt near Willows Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC297845  Potamogeton foliosus H. E. Parks 1923-5-30 1758 Humboldt Eureka Comment
  UC1103512  Potamogeton foliosus Joseph P. Tracy Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC86453  Potamogeton natans D. K. Imper 1987-5-3 Humboldt Fish Lake 915 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
  RSA54124  Potamogeton natans Henry M. Pollard 1946-8-16 s.n. Humboldt Near Camp Creek, Orleans region. Comment
  CDA837  Potamogeton nodosus E. C. Whitney 1963-9-2 s.n. Humboldt In lake of Benbow Lake State Park, south of Garberville. 0 Comment
  CAS-BOT-BC143081  Potentilla anserina subsp. pacifica Malcom A. Nobs; S. Galen Smith 1949-8-3 1161 Humboldt 1 mile south of Fields Landing, Eel River Valley Comment
  HSC63880  Potentilla drummondii M. A. Baker 1979-6-27 922 Humboldt Edge of Hoopa Indian Reservation Comment
  JEPS47215  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC492177  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC158497  Potentilla gracilis var. gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5 1/2 mi. from Bald Mt. on road to Snow Camp 914 Comment
  HSC73575  Prosartes hookeri Gail Newton 1980-7-14 1513 Humboldt Near Deadman Ridge 1097 Comment
  HSC97464  Prosartes hookeri Cara Witte 2007-5-31 149 Humboldt Road to Board Camp Mountain Lookout. Along 4N38. 1/2 mile south of intersection with National Forest 1. 1330 Comment
  HSC15473  Prosartes smithii D. E. Anderson 1962-3-31 1959 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  HSC15477  Prosartes smithii H. E. Parks 1935-3 5582 Humboldt Trinidad Comment
  HSC49178  Prosartes smithii J. O. Sawyer 1977-4-23 2848 Humboldt Bluff Creek Campground Comment
  SEINET12044823  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  SEINET12045060  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  HSC81567  Prunella vulgaris subsp. lanceolata Thomas W. Nelson, Jane P. Nelson 1980-7-13 6062 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  CDA40758  Prunella vulgaris subsp. lanceolata M. Pryor 1948-7-29 s.n. Humboldt 1 mile east of Loleta. 0 Comment
  HSC22507  Prunella vulgaris subsp. lanceolata J. R. Lippincott 1967-7-16 5 Humboldt Near N Fork Mad River bridge 152 Comment
  CAS-BOT-BC159975  Prunus emarginata Doris K. Kildale 1927-5-14 3290 a Humboldt Big Lagoon Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  POM160879  Prunus emarginata Joseph P. Tracy 1923-4-15 6195 Humboldt Hungry Hollow on Bald Mt. Comment
  UC492201  Prunus emarginata Joseph P. Tracy 1932-7-13 10527 Humboldt at Corral Prairie, Trintiy Summit, Klamath Mountains Corral Prairie; Klamath Mountains, Trintiy Summit 1524 Comment
  UC666846  Prunus emarginata Joseph P. Tracy 1937-7-29 15594 Humboldt South Fork Mountain, near top at Hyampom Trail South Fork Mountain; , Hyampom Trail 1676 Comment
  CAS-BOT-BC154740  Prunus virginiana var. demissa Doris K. Kildale 1926-5-16 1841 Humboldt Horse Mountain 792 Comment
  UCSB30606  Pseudognaphalium californicum Edwards, David 1974-8-14 Humboldt S. side of dirt Rd., ca. 1/2-1/3 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 1/4 mi. from jct. of Fickle Hill Rd. and Park Ave. Comment
  HSC99584  Pseudognaphalium canescens subsp. thermale K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 249 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  CAS-BOT-BC357601  Pseudognaphalium stramineum John Thomas Howell 1936-8-29 12886 Humboldt Eel River 16 miles n. of Garberville Comment
  UC1223116  Pseudognaphalium stramineum Joseph P. Tracy 1950-7-15 19044 Humboldt e side Trinity River 1 mi n of mouth of Willow Creek; Trinity River Comment
  HSC79440  Pteridium aquilinum var. pubescens Kenneth Clark 1980-6-14 675 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  SD42991  Pteridium aquilinum var. pubescens Edith A. Purer 1932-7-30 Humboldt south of Orick Comment
  UCD39989  Pteridium aquilinum var. pubescens Rodney Gale Myatt 1971-9-21 1187 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  CAS-BOT-BC460505  Pterospora andromedea Doris K. Kildale 1927-7-23 3794 Humboldt Hoaglin Lake, near Lasseck's Peaks 1524 Comment
  UC1197752  Pterospora andromedea Joseph P. Tracy 1948-8-15 18119 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  OBI22190  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt Eureka Comment
  UCSC000066  Puccinellia nutkaensis H. S. Yates 1936-6-16 5669 Humboldt 1 mile N.E. of Samoa - Eureka 0 Comment
  JEPS66558  Pyrola aphylla Lincoln Constance 1934-6-2 792 Humboldt Bull Creek Region, road to mouth of Bull Cr. and up Bull Cr., South Fork Eel River Comment
  UC1541560  Pyrola picta Harold E. Parks 1934-6-27 5259 Humboldt Grouse Mountain Comment
  CAS-BOT-BC466035  Pyrola picta Milo S. Baker 1947-8-10 11908 Humboldt Near end of Forest Rd from Hoopa toward Trinity Summit 1371 Comment
  CAS-BOT-BC466036  Pyrola picta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1197568  Pyrola picta Joseph P. Tracy 1908-7-30 2777 Humboldt Northwest slope pf Buck Mountain 914 Comment
  SEINET200713  Pyrola rotundifolia J. P Tracy 1901-6-30 1191 Humboldt Immediate vicinity of Eureka, 0 Comment
  CAS-BOT-BC62628  Quercus chrysolepis Doris K. Kildale 1926-12-26 2880 Humboldt Kneeland Prairie 853 Comment
  HSC54593  Quercus chrysolepis Overton, Butler 1979-7-24 9661 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC54661  Quercus chrysolepis Overton, Butler 1979-7-25 9887 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UCD45385  Quercus chrysolepis Joseph P. Tracy; H. E. Parks 1931-5-17 9413 Humboldt Trinity River Valley opposite Willow Creek. 152 Comment
  UCR32154  Quercus chrysolepis David J. Keil 1983-7-1 17275 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  CAS-BOT-BC94313  Quercus garryana Doris K. Kildale 1928-7-1 5666 Humboldt Klamath River at Bluff Creek Comment
  UC667987  Quercus garryana Joseph P. Tracy 1938-6-13 15915 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UCSB1171  Quercus garryana C. Muller 1954-6-21 9641 Humboldt 2 MI ESE OF MAD RIVER ON RD TO FOREST GLEN OLSEN CREEK Comment
  HSC98850  Quercus garryana var. garryana Cara Witte 2008-9-13 1037 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  SEINET10477993  Quercus garryana var. garryana Jones 1985-6-6 Jones 111 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat 1128 Comment
  HSC41013  Quercus kelloggii J. P. Smith, J. O. Sawyer 1976-5-2 8635 Humboldt 3.2 mi W of Loop Rd. in Hoopa Reservation, along Redwood Creek-Hoopa Rd. 366 Comment
  JEPS37674  Quercus sadleriana W. L. Jepson Jul 16 1902-Jul 23 1902 2033 Humboldt just below Trinity Summit 2133 Comment
  UCD47234  Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt Trinity Summit near Box Camp. 1524 Comment
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Aug 6 2009
  HSC76363  Quercus vacciniifolia Denis Kearns 1981-6-24 18 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC378853  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-21 1585 Humboldt Kneeland Prairie 488 Comment
  CAS-BOT-BC378854  Ranunculus californicus var. californicus Doris K. Kildale 1927-3-20 2917 Humboldt Philipsville, south fork of Eel River Comment
  RSA43857  Ranunculus cymbalaria var. saximontanus H. M. Pollard 1947-8-7 s.n. Humboldt Klamath River bed, near hoodson Mine, Orleans region Comment
  UC1103011  Ranunculus flammula J. P. Tracy 1901-5-12 1080 Humboldt immediate vicinity of Eureka 0 Comment
  HSC100903  Ranunculus macranthus Carl C. Marshall Apr 1886 172 Humboldt Damp soils near bay. Comment
  UC1196232  Ranunculus occidentalis Joseph P. Tracy 1934-6-27 13263 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC1196224  Ranunculus occidentalis Joseph P. Tracy 1920-5-18 5327 Humboldt 5 mi above Dyerville; Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  HSC18159  Ranunculus occidentalis var. occidentalis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  HSC70952  Ranunculus orthorhynchus J. M. DiTomaso 1981-5-15 2008 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  POM126168  Ranunculus parviflorus W. Humboldt 1922-5-21 6053 Humboldt Blue Lake, locally common in depressions by roadside. 30 Comment
  UC162817  Ranunculus pusillus Joseph P. Tracy 1903-5-24 1912 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  POM118709  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  POM87678  Ranunculus repens L. R. Abrams, Rimo Bacigalupi 1922-6-25 8276 Humboldt Big Lagoon S of Quick Comment
  HSC99489  Ranunculus repens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 148 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
  UC1196272  Ranunculus uncinatus J. P. Tracy 1901-5-5 1065 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC44407  Ranunculus uncinatus R. York 1978-5-6 159 Humboldt Along Bluff Creek Rd. 610 Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  POM257951  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-06 24018 Humboldt Spruce Cove, Trinidad. Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC56640  Rhododendron occidentale Aven Nelson; Ruth A. Nelson 1933-5-15 575 Humboldt Redwood Highway 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
  UC604659  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15946 Humboldt Trinidad 60 Comment
  HSC7884  Rhododendron occidentale var. paludosum N. D. Dennis 1965-4-29 30 Humboldt Old Arcata Rd., 6 mi. S of Arcata Comment
  UCD116925  Rhus aromatica M. Wiesendanger 1928-4-7 931 Humboldt Near Blue Lakes. Comment
  CAS-BOT-BC433143  Ribes Doris K. Kildale 1927-6-25 3570 Humboldt Shelter Cove Comment
  CAS-BOT-BC433144  Ribes Doris K. Kildale 1928-5-1 5989 Humboldt MacLellan [McClellan] Mountain 914 Comment
  HSC53831  Ribes binominatum Griswold, Butler 1979-7-10 6279 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA459478  Ribes bracteosum Barbara Kelly 1977-4-23 304 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UC667031  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  CAS-BOT-BC168853  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC168854  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  HSC75511  Ribes lacustre J. O. Sawyer, R. J. Cole 1977-7-3 3022 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1198916  Ribes lacustre Joseph P. Tracy 1942-6-23 17250 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC492207  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC39629  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2734 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC55679  Ribes lobbii Overton, Butler 1979-7-26 9930 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  JEPS48559  Ribes lobbii Hilda W. Grinnell 1932-7-9 7 Humboldt below Camp McKay; So. Fork Mt. 1584 Comment
  JEPS49360  Ribes lobbii Jos. P. Tracy 1913-6-17 4189 Humboldt near summit Buck Mt. Comment
  CAS-BOT-BC206039  Ribes menziesii Joseph P. Tracy 1935-3-3 13713 Humboldt Dow's Prairie 60 Comment
  HSC20312  Ribes menziesii R. E. Thill 1965-5-1 25 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  RSA0021770  Ribes menziesii H. E. Parks 1933-04 4402 Humboldt McNeils Creek, vicinity of Trinidad. Comment
  HSC102620  Ribes nevadense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1607 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC57146  Ribes nevadense Overton, Butler 1979-7-26 9937 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC74339  Ribes roezlii M. A. Baker 1980-5-18 1290 Humboldt Near Black Mtn. 1006 Comment
  JEPS49455  Ribes roezlii var. cruentum P. E. Goddard 1901-7 83 1/2 Humboldt Hupa Comment
  CAS-BOT-BC212523  Ribes sanguineum L. R. Abrams; R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon Comment
  CAS-BOT-BC212524  Ribes sanguineum Pat Daly; Rudy Galindo 1988-4-30 85 Humboldt Titlow Road and Hwy. 299 853 Comment
  HSC40117  Ribes sanguineum Dan O'Brien 1962-5-19 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  HSC90030  Ribes sanguineum Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 62 Humboldt Titlow Rd. 0.5 mi. S of its intersection with Hwy. 299 854 Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC211979  Ribes sanguineum Joseph P. Tracy 1942-6-23 17238 Humboldt Near Box Camp, Trinity Summit 1524 Comment
  CAS-BOT-BC144697  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-7-29 5926 Humboldt Bear River at Capetown 15 Comment
  RSA0018249  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-3-24 2945 Humboldt Fleener Creek bluff. Comment
  HSC44600  Ribes viscosissimum Brad Klipfel 1973-6-10 103 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  HSC26800  Romanzoffia californica Thomas W. Nelson 1971-4-24 404 Humboldt Willow Creek Comment
  HSC69840  Romanzoffia californica R. Kalal 1979-5-6 52 Humboldt Trinidad Head 30 Comment
  HSC84930  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  POM265891  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2879 Humboldt 3 miles east of East Fork of Willow Creek. Comment
  UC1199221  Rorippa curvisiliqua Joseph P. Tracy 1934-7-9 13350 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC902153  Rosa Joseph P. Tracy 1947-8-24 17889 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC902157  Rosa Joseph P. Tracy 1947-6-5 17814 Humboldt near Box Camp; Trinity Summit 1524 Comment
  BLMAR77  Rosa gymnocarpa Jennifer Anthony-Wheeler 1994-6-2 77 Humboldt IAQUA, growing along logging rd 3/4mi from beginning of rd 853 Comment
  HSC35592  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2003 Humboldt French Camp, Bald Hills. Comment
  HSC99305  Rosa gymnocarpa C. B. Wolf 1927-8-30 1232 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  RSA67383  Rosa gymnocarpa Philip A. Munz 1951-9-17 16995 Humboldt 1 mile S of Pepperwood Comment
  UC1541251  Rosa nutkana var. nutkana H. E. Parks June 1933 4450 Humboldt near Bolling Grove; Eel River Comment
  CAS-BOT-BC148345  Rosa pisocarpa Joseph P. Tracy 1933-7-25 12898 Humboldt Grouse mt. 1524 Comment
  UC667037  Rosa pisocarpa Joseph P. Tracy 1933-7-25 12898 Humboldt hillside Grouse Mt. 1524 Comment
  HSC19673  Rubus armeniacus M. L. Stuart 1965-4-18 6 Humboldt Fern Lake Dam Comment
  HSC99891  Rubus armeniacus Bill Wood 2011-8-19 Humboldt Eureka; corner of Myrtle Ave. and Bettie Lane Comment
  UC302102  Rubus laciniatus Joseph P. Tracy 1926-11-7 7828 Humboldt opposite Scotia (along Eel River from South Fork to Scotia); Northern Coast Ranges, along Eel River 60 Comment
  UC492171  Rubus laciniatus Joseph P. Tracy 1927-10-8 8385 Humboldt Boyes' Prairie Northern Coast Ranges, Prairie Creek 60 Comment
  CAS-BOT-BC148387  Rubus leucodermis W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  BLMAR233  Rubus parviflorus Jennifer Anthony-Wheeler 1996-9-26 233 Humboldt King range, growing in moist shade along bearcrk between Nad & Wai campground 548 Comment
  HSC22040  Rubus parviflorus B. D. Rogers, D. E. Anderson 1965-5-1 514 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC56140  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11961 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC57020  Rubus parviflorus Overton, Butler 1979-7-24 9632 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA523867  Rubus parviflorus G. H. True 1936-5-12 473 Humboldt 5 miles S of Kneeland. 457 Comment
  SEINET4976242  Rubus parviflorus Unknown 1938-8-8 15398 Humboldt Elk River, 6 miles S of Eureka Comment
  HSC19677  Rubus spectabilis D. K. Smith 1968-3-3 10 Humboldt On West End Rd., ca. 3 mi. from Hwy. 299 Comment
  UC154221  Rubus spectabilis J. P. Tracy 1901-4-7 1001 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1199052  Rubus ursinus Joseph P. Tracy 1935-5-25 13827 Humboldt along headwaters Larrabee Creek (Blocksburg); along headwaters of Larrabee Creek 457 Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  RSA89568  Rubus vitifolius Philip A. Munz 1954-7-23 19865 Humboldt 5 miles SE of Carlotta Comment
  HSC58183  Rudbeckia klamathensis G. L. Clifton, Griswold 1979-8-2 12271 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC6931  Rumex acetosella J. Burtt Davy 1899-6-13 5484 B Humboldt near Camp Grant; North Coast Ranges Comment
  HSC102195  Rumex californicus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1109 Humboldt Andy's Camp 1564 Comment
  UC249658  Rumex maritimus Joseph P. Tracy 1921-8-7 5867 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  CAS-BOT-BC433647  Rumex obtusifolius Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  HSC99552  Rumex obtusifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 217 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC36319  Rumex persicarioides Thomas W. Nelson 1975-8-10 2242 Humboldt At Shively Comment
  RSA249519  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35208 Humboldt Samoa Peninsula. 0 Comment
  HSC9565  Rytidosperma penicillatum True Hoyle 1967-7-5 27467 Humboldt Humboldt State University campus lawn, just below Founder's Hall, near the steps to the Science Bldg. 30 Comment
  HSC40219  Sagina apetala Barbara Kelly 1977-4-6 290 Humboldt N Spit 100 yds. W of Coast Guard Station Comment
  UC161047  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-5-2 2181 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC668104  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1936-6-3 14851 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  BLMAR310  Salicornia pacifica Jennifer Anthony-Wheeler 2002-7-1 310 Humboldt South Spit, canibal island quad 6 Comment
  UC490587  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC129890  Salix bonplandiana W. R. Dudley 1899-6-21 s.n. Humboldt Junction of north and south Fork of Eel River Comment
  UC490538  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt blueberry swamp in McKay Meadow; Klamath Mts., Trinity Summit 1524 Comment
  CAS-BOT-BC103817  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC6088  Salix exigua Harold Ernest Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  JEPS14753  Salix exigua Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River Valley; Northern Coast Region 152 Comment
  UC526710  Salix exigua H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges 152 Comment
  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
  HSC19947  Salix exigua var. hindsiana H. E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River 10 Comment
  UC512024  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1335 Humboldt 1 mi below bridge on Trinity Hwy. (bank above Trinity R.) 152 Comment
  CAS-BOT-BC106859  Salix hookeriana John Johnson 1962-4-1 1188 Humboldt Lanphere Ranch, about 4 miles west of Arcata Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107761  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107762  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1217 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107775  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1246 Humboldt Gravelly floodplain of Van Dezen River at Blue Slide 91 Comment
  CHSC9652  Salix hookeriana E. L. Smith 1971-8-18 1023 Humboldt At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite of Eureka. Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19956  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1103 Humboldt Little River Lagoon Comment
  HSC40862  Salix hookeriana Linda M. Barker 1976-4-30 1422 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS13091  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna; bank of Eel River 15 Comment
  POM219284  Salix hookeriana H. E. Parks 1931-08 1053 Humboldt Little River Lagoon. 0 Comment
  UC1173589  Salix hookeriana Joseph P. Tracy 1938-6-16 15941 Humboldt Trinidad; streambank facing ocean 3 Comment
  UC1196554  Salix hookeriana Joseph P. Tracy 1936-9-27 15189 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC176176  Salix hookeriana Joseph P. Tracy 1913-9-21 4413 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) 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
  UC469116  Salix hookeriana Joseph P. Tracy 1927-3-13 7844 Humboldt mouth of Little River; Northern Coast Ranges, Little R. 6 Comment
  UC470436  Salix hookeriana Joseph P. Tracy 1931-10-18 9741 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC481333  Salix hookeriana Harold E. Parks 1931-5-27 998 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  UC481349  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa Comment
  UC481352  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481388  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC490456  Salix hookeriana Joseph P. Tracy 1932-5-10 9954 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC495607  Salix hookeriana Joseph P. Tracy 1932-10-12 10873 Humboldt S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R. 121 Comment
  UC504061  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 8 Humboldt Samoa Comment
  UC512085  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC709426  Salix hookeriana Joseph P. Tracy 1941-8-3 16980 Humboldt Table Bluff; adjoining coast sand dunes at w end of bluff 3 Comment
  UCD111043  Salix hookeriana Linda M. Barker 1976-9-3 1693 Humboldt 3 miles west of Arcata. Comment
  UC469475  Salix laevigata Joseph P. Tracy 1931-10-18 9737 Humboldt on Eel R. Camp Grant; Northern Coast Ranges, Eel R., Camp Grant 60 Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  HSC40871  Salix lasiandra Linda M. Barker 1976-9-3 1690 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC107585  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-12 1244 Humboldt Floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107586  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1317 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107591  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1317 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107592  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1329 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107600  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS12946  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  RSA34303  Salix lasiolepis Doris K. Kildale 1928-3-27 4359 Humboldt [Unspecified] Comment
  UC1196623  Salix lasiolepis Joseph P. Tracy 1932-10-12 10874 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1196625  Salix lasiolepis Joseph P. Tracy 1933-3-19 10930 1/2 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on gravel bar) 91 Comment
  UC275494  Salix lasiolepis Joseph P. Tracy 1925-6-28 7154 Humboldt Redwood Creek, at Berry's Comment
  UC469416  Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC506391  Salix lasiolepis Joseph P. Tracy 1933-2-26 10914 Humboldt along S. Fork Eel R. Miranda; North Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC506393  Salix lasiolepis Joseph P. Tracy 1932-6-19 10243 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC506397  Salix lasiolepis Joseph P. Tracy 1933-3-19 10934 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC511994  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1239 Humboldt Blue Slide Van Duzen River 91 Comment
  UC519332  Salix lasiolepis Joseph P. Tracy 1933-10-15 13094 Humboldt near Miranda South Fork of Eel River 121 Comment
  CDA39556  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  CAS-BOT-BC107293  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01241 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107294  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107417  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-7-27 2220 Humboldt Laribee Valley 701 Comment
  POM219689  Salix lucida subsp. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC125607  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  JEPS12953  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole River near Petrolia; Northern Coast Region 15 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  JEPS38370  Salix melanopsis W. L. Jepson 1902-6 2121 Humboldt Supply Creek Hupa Valley 243 Comment
  LA208880  Salix melanopsis Harold E. Parks; 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville 300.0 Comment
  SBBG57922  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC481384  Salix melanopsis Harold E. Parks 1931-3-26 909 Humboldt on Van Duzen R. Alton; Van Duzen R. 15 Comment
  UC481827  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC519380  Salix melanopsis Joseph P. Tracy 1933-5-20 12261 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  RSA0038342  Salix melanopsis var. tenerrima Harold E. Parks, Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC129159  Salix scouleriana Joseph P. Tracy 1937-3-21 15237 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS13087  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  SD883  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 449 Comment
  UC1173583  Salix scouleriana Joseph P. Tracy 1935-7-26 14256 Humboldt at Water-dog Lakes Trinity Summit 1889 Comment
  UC1173631  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC512015  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1228 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  UC519353  Salix scouleriana Joseph P. Tracy 1933-8-30 13056 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC96608  Salix sitchensis Gordon Leppig 2005-4-8 2212 Humboldt Eureka, edge of PALCO Marsh at W end of W Hawthorne St. 3 Comment
  JEPS12955  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Van Duzen River Alton; Northern Coast Region, Van Duzen River 30 Comment
  UC1196713  Salix sitchensis Joseph P. Tracy 1940-2-25 16521 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC1196715  Salix sitchensis Joseph P. Tracy 1926-2-21 7363 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1225919  Salix sitchensis Joseph P. Tracy 1942-7-26 17295 Humboldt near the Redwood House S. Yager Creek 609 Comment
  UC176185  Salix sitchensis Joseph P. Tracy 1913-3-9 4013 Humboldt Van Duzen R. near Hydesville; Northern Coast Region, Van Duzen R. 60 Comment
  UC519351  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mts., McKay Camp 1676 Comment
  POM284213  Sambucus caerulea Lyman Benson 1928-7-12 490 Humboldt Weott Ranger Station 91 Comment
  RSA21578  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  HSC3969  Sambucus racemosa var. racemosa E. W. Styskel 1963-4-2 13 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. Comment
  HSC89426  Sambucus racemosa var. racemosa P. A. Daly 1984-5-8 5 Humboldt Trinidad Head. 61 Comment
  SEINET3103511  Sambucus racemosa var. racemosa Steve Selva, Rodger Jensen 1974-8-28 99 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC1199041  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1938-9-25 16167 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  JEPS224  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  UC183568  Sanicula crassicaulis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3599 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  HSC56313  Sanicula graveolens Overton, Butler 1979-8-2 12649 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC45393  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1977-6-19 3491 Humboldt N of Goat Hill 1616 Comment
  HSC68997  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 321 Humboldt Near Pistol Spring. 1082 Comment
  HSC34957  Sanicula tuberosa Thomas W. Nelson 1975-5-24 1863 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS972  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1197077  Sanicula tuberosa Joseph P. Tracy 1913-5-4 4064 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC183564  Sanicula tuberosa Joseph P. Tracy 1912-7-31 3943 Humboldt Northern Coast Ranges, Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  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
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  HSC102071  Saxifraga aprica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 973 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS26211  Saxifraga ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  UC902007  Saxifraga mertensiana Joseph P. Tracy 1941-4-11 16858 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 304 Comment
  POM87944  Schoenoplectus acutus var. occidentalis Le Roy Abrams, Rimo C. Bacigalupi 8272 Humboldt Big Lagoon, south of Orick. Comment
  SEINET200964  Scirpus acutus var. occidentalis J. P. Tracy 1934-7-20 13472 Humboldt Big Lagoon Comment
  UC419066  Scirpus acutus var. occidentalis H. E. Parks 1930-9-14 771 Humboldt n shore Big Lagoon; n shore Big Lagoon Comment
  UC1103646  Scirpus congdonii Joseph P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  CDA39134  Scirpus koilolepis Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  CDA18245  Scirpus microcarpus G. D. Barbe, T. C. Fuller 1974-6-19 1883 Humboldt North Coast Ranges; Arcata, US Hwy 101 at Saint Louis Rd. 12 Comment
  HSC58796  Scirpus microcarpus Gilbert Muth 1979-7-31 11522 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UCR122382  Scirpus microcarpus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7001 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  SEINET12815835  Scoliopus bigelovii John D. Freeman, Ruth Freeman 1967-1 583 Humboldt Just west of California Hwy. 36 and just north of Carlotta. 52 Comment
  HSC92543  Scoliopus bigelovii S. Morrissette, J. Williams, K. Kopper 1994-3-28 5 Humboldt On Lost Coast Trail, 2.25 mi. S of Bear Harbor Camp in J. Smeaton Chase Grove Comment
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Mar 9 2013
  JEPS32499  Scrophularia californica subsp. californica Peter H. Raven 1963-5-15 18376 Humboldt ca 1.5 mi s Trinidad (Luffenholz Beach) Comment
  HSC97304  Scutellaria antirrhinoides Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 4 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  UC577337  Scutellaria antirrhinoides Harold E. Parks and Joseph P. Tracy 1934-6-27 11061 Humboldt Grouse Mountain 1432 Comment
  HSC14402  Scutellaria californica H. E. Parks 1934-7-6 5118 Humboldt Iaqua-Yager Creek 762 Comment
  SD29268  Scutellaria californica Lincoln Constance 1934-6-27 936 Humboldt On south side of Eel River near its junction with the south fork, at end of railroad bridge, 0.5 mile northwest of s. fork P. O. and R. R. Station. Comment
  UC577314  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  HSC38769  Secale cereale A. M. Montalvo, J. D. Ackerman 1975-6-10 446 Humboldt 1 mi. N of Samoa Blvd. and turnoff to Samoa Bridge, S of Manila. Along Humboldt Bay. Comment
  HSC79258  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Sims Mtn. next to FS 4N01, 1 1/4 mi. S of Sugarloaf Mtn. 1280 Comment
  HSC59107  Sedum laxum subsp. heckneri M. A. Baker 1978-7-17 594 Humboldt On the N bank of the Salmon River, 5 km E of its confluence with the Klamth River Comment
  JEPS48045  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC14450  Sedum radiatum Chestnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC166026  Sedum spathulifolium Joseph P. Tracy 1906-5-6 2449 Humboldt near Hydesville; Northern Coast Region, near Hydesville 182 Comment
  HSC89507  Sedum spathulifolium var. pruinosum M. Roantree 1985-6-11 89 Humboldt W side of Trinidad Head, W of trail Comment
  OBI1550  Selaginella oregana Lawrence L. Kiefer 1963-8-6 769 Humboldt Patrick's Point State Park 61 Comment
  UC1713630  Selaginella oregana Don Branscomb 1957-12-26 Humboldt Lookout rock Patrick's Point Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  CAS-BOT-BC363808  Senecio integerrimus var. exaltatus Doris K. Kildale 1926-4-11 1763 Humboldt McLellan Mountain 822 Comment
  HSC6156  Senecio integerrimus var. major H. E. Parks, J. P. Tracy 1930-5-25 879 Humboldt Laribee Valley 762 Comment
  CDA7634  Senecio jacobaea E. C. Whitney 1966-8-25 Humboldt South side of mouth of Canyon Creek, Simpson Lumber Company property, ca. 6 miles north of Korbel. 0 Comment
  RSA167401  Senecio mikanioides Joseph P. Tracy 1942-1-25 17054 Humboldt Near Ferndale along Russ Creek. Comment
  UC1118081  Senecio minimus H. L. Person 1932-7-23 Humboldt Korbel Eureka Quad., Korbel Comment
  UCSB30588  Senecio minimus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca. 1/2-3/4 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 1/4 mi. E. of jct. of Fickle Hill Rd. and Park Ave., Arcata Comment
  SEINET11802649  Senecio sylvaticus J. P. Tracy 1949-1 18467 Humboldt S of crossing of powerline,E of headwaters of Redwood Creek, Kinsey Ridge, S from Grouse Mt., 2-6 mi 1280 Comment
  HSC58000  Senecio triangularis G. L. Clifton, Griswold 1979-7-31 11780 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC98109  Senecio triangularis Cara Witte 2007-6-27 361 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  RSA47114  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit. Elk Horn Prarie. 1524 Comment
  SEINET10612350  Sequoia sempervirens Huron H. Smith 1911-6-16 Smith 3824 Humboldt [Vances Canyon # 20] Field Museum of Natural History Comment
  UC1145167  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC526852  Setaria viridis Joseph P. Tracy 1934-8-18 13589 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC108862  Sidalcea asprella J. W. Blankinship 1893-6-15 Humboldt Bridgeville Comment
  HSC100570  Sidalcea diploscypha Carl C. Marshall 467 Humboldt Throughout Humboldt. Comment
  POM256469  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 miles southeast of Arcata. 610 Comment
  SD73190  Sidalcea malachroides Darley F. Howe 1969-6-4 4626 Humboldt 14.6 miles east of Alton on Highway 36. 299 Comment
  UC1222507  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  UC1197977  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1930-7-23 9124 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  RSA28793  Sidalcea malviflora subsp. patula H. E. Parks 1940-05 24177 Humboldt Dow s Prairie 30 Comment
  UC146131  Sidalcea oregana subsp. eximia Joseph P. Tracy 1907-6-25 2578 Humboldt in valley of Elk River Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  JEPS50973  Silene californica Lincoln Constance 1934-6-1 770 Humboldt Bull Cr Road between Dyerville Bridge and Bull Creek (flat grove (mouth of Bull Cr)); Bull Creek Region, South Fork Eel River 45 Comment
  UC465675  Silene californica P. E. Goddard 1907-5-29 f 101 Humboldt Van Duzen Comment
  UC1198350  Silene campanulata Joseph P. Tracy 1933-7-11 12675 Humboldt Horse Mountain 1432 Comment
  UC668095  Silene campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , Hyampom Trail 1676 Comment
  CAS-BOT-BC174879  Silene campanulata subsp. glandulosa Volney Rattan 1883-1-1 s.n. Humboldt Hoopa Valley Comment
  CHSC19501  Silene gallica W. D. Stevens 1967-7-22 53 Humboldt Above the dirt road from old Hwy 101 to the top of the north bank of the Mad River. Comment
  HSC37960  Silene gallica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UCD98626  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  BLMAR456  Silene gallica Jennifer Anthony-Wheeler 2008-5-27 456 Humboldt Samoa dunes, growing in Samoa Endangered Plant Protection Area 9 Comment
  HSC62895  Silene gallica J. M. DiTomaso 1979-5-20 1053 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC57998  Silene grayi G. L. Clifton, Griswold 1979-7-31 11767 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC63145  Silene grayi M. A. Baker 1979-6-27 937 Humboldt Below Trinity Summit at head of Oregon Creek Comment
  CAS-BOT-BC389069  Silene laciniata subsp. californica W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  UC465640  Silene latifolia subsp. alba Mrs. M. H. Manning 1901-1 Humboldt near Hupa (Hoopa Valley); near Hupa, Hoopa Valley Comment
  HSC70925  Sisymbrium altissimum R. York 1980-5-18 576 Humboldt Near Black Mtn 792 Comment
  UC1198796  Sisymbrium officinale Joseph P. Tracy 1932-7-17 10658 Humboldt Trinity Summit at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  HSC98162  Sisyrinchium bellum Brad Klipfel 1973-4-28 12 Humboldt Along Canyon Creek Comment
  UC1196381  Sisyrinchium californicum J. P. Tracy 1901-6-10 1125 Humboldt immediate vicinity of Eureka 0 Comment
  HSC48534  Sisyrinchium californicum Mark Flippo 1978-4-18 25 Humboldt McKinleyville, Bella Vista Hill Comment
  UC30080  Smilacina stellata Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5834 Humboldt 300 ft below summit; Trinity Summit Comment
  HSC98036  Solanum parishii Cara Witte 2007-7-19 548 Humboldt Ammon Ridge Rd., 2 mi. E of intersection with National Forest 1. 1453 Comment
  CAS-BOT-BC365438  Solidago elongata H. E. Parks; S. T. Parks 1937-9-1 24081 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC22503  Solidago elongata Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC68158  Solidago spathulata J. P. Smith 1971-10-6 4977 Humboldt End of Murray Rd. in McKinleyville. Comment
  SD38300  Solidago spathulata Edith A. Purer 1932-7-27 4147 Humboldt Samoa Comment
  CAS-BOT-BC364970  Solidago velutina subsp. californica Carl B. Wolf 1927-8-29 1198 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  UC673080  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16701 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  JEPS18742  Soliva sessilis Joseph P. Tracy 1936-7-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC91903  Sonchus oleraceus E. Mackey 1986-11-2 Humboldt Patrick's Point State Park; by road to Palmer's Point Comment
  UC1198767  Sorbus californica Joseph P. Tracy 1932-7-12 10469 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains 1828 Comment
  UC1222306  Sorbus californica Joseph P. Tracy 1951-6-14 19419 Humboldt Snow Camp Comment
  CHSC69844  Sparaxis Duain Goforth 1977-4-19 Humboldt Arcata. Comment
  UC14919  Sparganium erectum subsp. stoloniferum Hattie F. Tracy 1901-6-26 1216 Humboldt Loleta 15 Comment
  CAS-BOT-BC235368  Spartina densiflora Malcom A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt Near mouth of the Elk River, ca. 4 miles south of Eureka on Highway 101 Comment
  RSA10096  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka, Marsh at R.R. station Comment
  RSA244949  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  UC249860  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka Northern Coast Ranges (salt marsh at railroad station) 0 Comment
  SJSU7904  Spartina spartinae H. T. Harvey 1977-7-5 599 Humboldt tidal salt marsh, Elk River Spit, southerly outskirts of Eureka, Humboldt Bay Comment
  HSC68008  Spergula arvensis J. P. Smith 1970-6-7 3805 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC4252  Spergularia rubra Lincoln Constance 1934-6-11 847 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  RSA249515  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-9 35294 Humboldt Big Lagoon. 3 Comment
  HSC36652  Spiranthes romanzoffiana J. D. Ackerman 1975-8-2 620 Humboldt W end of Samoa Bridge at intersection of Hwy. 255 and Samoa Blvd. N spit, Humboldt Bay. 8 Comment
  JEPS63079  Stachys ajugoides var. rigida Lincoln Constance 1934-5-26 663 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UCLA70844  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  UCSB5856  Stachys albens Keator, Glenn 1958-6-28 Humboldt Dyerville road; at middle altitudes Comment
  HSC14424  Stachys rigida D. E. Anderson 1963-5-25 2482 Humboldt 2-3 mi. N of Capetown Comment
  HSC12596  Stachys rigida C. Kline 1970-11-9 62 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  HSC34274  Stachys rigida var. rigida K. Irwin 1975-8-13 Humboldt Grogans Hole area Comment
  UC162629  Stellaria crispa Joseph P. Tracy 1911-7-5 3312 Humboldt near mouth of Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  UC161039  Stellaria littoralis J. P. Tracy 1909-5-16 2968 Humboldt near Trinidad 30 Comment
  UC161056  Stellaria media Joseph P. Tracy 1911-7-5 3313 Humboldt near mouth of Willow Creek (along Willow Creek tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC4271  Stellaria media S. R. Johnson 1965-3-23 17 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC48380  Stellaria media Mark Flippo 1978-4-18 37 Humboldt McKinleyville, Bella Vista Rd. Comment
  HSC59046  Stellaria media Thomas Wood 1979-4-1 92 Humboldt 3/4 mi. W of Upper Bay Rd. X Janes Rd. on Lamphere-Upper Bay Rd. Comment
  UC1197797  Stenanthium occidentale Joseph P. Tracy 1948-9-5 18172 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC58417  Stipa lemmonii Griswold, Butler 1979-7-12 7219 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC70374  Stipa occidentalis var. californica M. A. Baker 1980-6-7 1781 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC87618  Streptanthus tortuosus Volney Rattan 1878-1-1 s.n. Humboldt Unpsecified. Comment
  HSC65856  Streptanthus tortuosus Gail Newton 1980-6-28 687 Humboldt Near Mad River Butte. 1536 Comment
  UC162598  Streptanthus tortuosus Harley P. Chandler June 1901 1517 Humboldt Klamath River North Coast Ranges 426 Comment
  UC184371  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1912-7-26 3843 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC57457  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-26 10288 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  RSA520556  Streptopus amplexifolius Michael A. Hanson 1990-5-21 72 Humboldt On Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11.3 km) south of Klamath Comment
  UC562305  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC58035  Symphoricarpos mollis G. L. Clifton 1979-7-31 11870 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC602517  Symphoricarpos mollis Joseph P. Tracy 1932-7-11 10415 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC98926  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1066 Comment
  UC1222774  Synthyris reniformis Joseph P. Tracy 1950-4-20 18614 Humboldt 1 mi w Dinsmore's (on Van Duzen River); Van Duzen River Comment
  UC902236  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 Humboldt Willow Creek Canyon, along Trinity Highway, near crossing of East Fork Willow Creek Canyon 457 Comment
  RSA165849  Tanacetum camphoratum P. A. Munz 1963-6-13 24524 Humboldt At Samoa. Comment
  SBBG52996  Tanacetum camphoratum J. D. Hobson -Jul-1966 Humboldt Loleta Comment
  CAS-BOT-BC376777  Tanacetum parthenium Henry M. Pollard 1947-8-21 s.n. Humboldt Near Camp Creek, Orleans region Comment
  HSC79416  Taraxacum officinale Kenneth Clark 1980-3-1 507 Humboldt On access trail to Dead Man's Gulch 30 Comment
  UC1196938  Taraxia ovata Joseph P. Tracy 1939-4-18 16215 Humboldt w side of river Garberville 152 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
  UC1198892  Tellima grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9087 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1196171  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1929-8-18 8655 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. Comment
  UC1225806  Thelypteris nevadensis Joseph P. Tracy 1948-9-5 18171 Humboldt Happy Camp Mt.; Trinity Summit Range 1219 Comment
  UC1198809  Thlaspi montanum var. montanum Harold E. Parks and Joseph P. Tracy 1934-6-14 11029 Humboldt Horse Mt. 1402 Comment
  UC1565796  Thlaspi montanum var. montanum R. Spellenberg 1990-7-10 10234 Humboldt on USFS Rd 6N08, 7.5 air mi sw Salyer (on Friday Ridge 0.4 mi ne of junction with USFS Rd. 1, extreme e edge county); on Friday Ridge 1371 Comment
  HSC91618  Thuja plicata E. Mackey 1986-10-7 Humboldt Patrick's Point State Park along Patrick's Point Drive Comment
  RSA1090  Thuja plicata E. R. Johnson 1928-8-26 1149 Humboldt 7 miles east of Arcata Comment
  RSA126263  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 miles east of Arcata along Highway 299 Comment
  UC534994  Thuja plicata H. E. Parks 1932-7-25 0 -1139 Humboldt Camp 21 Hammond Lumber Company Trinidad (Trinidad, in bogs) 152 Comment
  CAS-BOT-BC88324  Thysanocarpus curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles northeast of Weithchpec near Bluff Creek Campground. 140 Comment
  RSA0039379  Thysanocarpus curvipes var. curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles NE of Weitchpec near Bluff Creek campground. 140 Comment
  SDSU9573  Tiarella Harvey 1938-8-13 2240 Humboldt Stephens Grove. Comment
  HSC41607  Tiarella trifoliata D. E. Anderson, J. P. Smith 1971-6-18 - 1054 Humboldt 1 mi. W of Lord Ellis Summit Comment
  JEPS49705  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-26 16417 Humboldt Bull Creek Comment
  UC1198900  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  RSA183607  Tolmiea menziesii E W Styskel 1963-5-19 39 Humboldt 3 miles S.E. of Korbel, on Snow Camp Road. 305 Comment
  HSC79551  Torilis arvensis Kenneth Clark 1980-6-14 668 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  JEPS14165  Torilis nodosa Lincoln Constance 1934-5-27 706 Humboldt South Fork Eel River, S end of Dyerville Bridge 45 Comment
  HSC99525  Torreyochloa pallida var. pauciflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 188 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET7295170 Image available Torreyochloa pallida var. pauciflora Richard Spellenberg 1965-1 1135 Humboldt In partly shaded area, in redwood forest; about 1 1/2 mi. e. of Bayside (which is 2 mi. s. of Arcata) on road leading up Jacoby Creek Comment
  HSC63227  Toxicodendron diversilobum M. A. Baker 1978-6-6 465 Humboldt Weitchpec Comment
  HSC89478  Toxicodendron diversilobum P. A. Daly 1986-3-12 81 Humboldt Trinidad Head 61 Comment
  JEPS63915  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16429 Humboldt on rd. to Bull Creek Dyerville Comment
  JEPS63933  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  UC582683  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  JEPS60737  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain Comment
  HSC43209  Trichostema lanceolatum R. Sutherland 1976-8-18 12 .18876 Humboldt 183 Comment
  RSA440753  Trichostema laxum E. S. Spalding 1924-7-13 s.n. Humboldt Lanis Flats, bank of Eel River. Comment
  JEPS63170  Trichostema oblongum Joseph P. Tracy 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  BLMAR156  Trientalis latifolia Donald Hazlett 1994-6-7 156 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC54597  Trientalis latifolia Overton, Butler 1979-7-24 9676 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC28131  Trientalis latifolia J. D. Ackerman 1973-5-6 44 Humboldt 3 mi. N of Weott Comment
  UC1223506  Trifolium barbigerum J. P. Tracy 1950-6-29 18939 Humboldt 6 mi se Arcata (Fickle Hill) Comment
  UC1197493  Trifolium barbigerum Joseph P. Tracy 1904-4-24 2027 Humboldt Ocean Beach Humboldt Bay Comment
  POM127032  Trifolium cyathiferum Chesnut, E. R. Drew 1888-8-2 s.n. Humboldt Grouse Creek Comment
  UC1197495  Trifolium cyathiferum Joseph P. Tracy 1933-7-15 12735 1/2 Humboldt lower foothills of nw slope; Buck Mtn Comment
  HSC100530  Trifolium depauperatum Carl C. Marshall May 1887 436 Humboldt Kneeland Prairie. Comment
  UC165572  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning Apr 1 1900-May 1 1900 Humboldt Hupa Comment
  HSC45172  Trifolium dichotomum R. Sutherland 1978-4-23 32 .23478 Humboldt Kinsey Ridge 640 Comment
  POM313548  Trifolium dubium P. B. Kennedy 1929-6-12 10323 Humboldt Eureka. Comment
  HSC45106  Trifolium dubium R. Sutherland 1978-5-16 6 .16578 Humboldt 157 Comment
  HSC71438  Trifolium dubium J. P. Smith 1973-5-26 6836 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCD108860  Trifolium dubium P. B. Kennedy 1929-6-14 10323 Humboldt Eureka. Comment
  HSC99715  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-19 25 Humboldt Big Hill Rd., switchback in road 1256 Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  HSC31744  Trifolium fucatum Donald Spalinger 1974-5-12 60 Humboldt Bald Hills Rd., 1.5 mi. E from junction with Hwy. 101 229 Comment
  UC1223458  Trifolium fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt s Cape Ridge (near ocean); Cape Mendocino Comment
  UC1197189  Trifolium gracilentum Joseph P. Tracy 1932-5-17 10084 Humboldt Willow Creek North Coast Ranges, Trinity River Valley 152 Comment
  HSC58651  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11709 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC98664  Trifolium longipes subsp. oreganum Cara Witte 2008-7-2 821 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  JEPS80000  Trifolium longipes var. elmeri Joseph P. Tracy 1932-7-13 10525 Humboldt Corral Prairie Klamath Mtns, Trinity Summit 1524 Comment
  HSC95210  Trifolium microcephalum Andrea Pickart 2002-7-3 155 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC1223355  Trifolium microcephalum Joseph P. Tracy 1939-4-29 16237 1/2 Humboldt mouth of Slate Creek (banks of Klamath River) Comment
  HSC38068  Trifolium microdon Thomas W. Nelson, Jane P. Nelson 1976-5-30 2639 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1223353  Trifolium microdon Joseph P. Tracy 1938-6-8 15864 Humboldt Samoa Sand Dunes Comment
  HSC25987  Trifolium obtusiflorum Thomas W. Nelson 1970-9-3 219 Humboldt Mad River. Comment
  UC1103443  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5460 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UC1197499  Trifolium oliganthum Joseph P. Tracy 1906-6-10 2471 Humboldt near Wrangleton (Kneeland Prairie); Northern Coast Ranges 152 Comment
  UC1223530  Trifolium variegatum var. melananthum Joseph P. Tracy 15374 Humboldt opposite Willow Creek (same place as no. 15331 and 15331 1/2); Trinity River Valley Comment
  UC1103456  Trifolium variegatum var. variegatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3588 Humboldt near Hydesville; Northern Coast Ranges Comment
  JEPS4384  Trifolium variegatum var. variegatum Lincoln Constance 1934-5-31 764 Humboldt along n side Bull Creek (Bull Creek Flat, from w boundary of park to Grasshopper Park Rd (Squaw Creek)); South Fork Eel River, Bull Creek region Comment
  UC495679  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8572 Humboldt along Sout Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  HSC15177  Trifolium willdenovii D. E. Anderson 1965-5-8 3643 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  JEPS4388  Trifolium willdenovii W. L. Jepson 1934-5-7 16686 Humboldt Dyerville Comment
  SEINET6935462  Trifolium willdenovii Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC495691  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt Horse Mtn Northern Coast Ranges 914 Comment
  UCD109887  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  HSC103851  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1851 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  RSA32731  Trifolium wormskioldii A. A. Heller 1923-7-9 13781 Humboldt Near Arcata. Comment
  UC1197037  Trifolium wormskioldii Joseph P. Tracy 1911-6-30 3727 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1223510  Trifolium wormskioldii Joseph P. Tracy 1932-6-9 14882 Humboldt Bear River Ridge 609 Comment
  UC162834  Trifolium wormskioldii J. P. Tracy 1906-8-18 2547 Humboldt Eureka vicinity 0 Comment
  CAS-BOT-BC451809  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  HSC62989  Triglochin maritima David Wheeler 1979-4-22 79 Humboldt Mad River Slough, 1 mi. W of the intersection of Mad River Rd. and Iverson Rd. Comment
  HSC14169  Triglochin maritima D. E. Anderson 1961-9-3 1779 Humboldt Along Hwy. 101 Comment
  HSC59120  Triglochin maritima Terry Roth 1979-4-28 18 Humboldt End of H St. in Arcata 0 Comment
  UC162705  Triglochin maritima Joseph P. Tracy 1911-6-25 3253 Humboldt Region about Humboldt Bay, at Bucksport Bucksport; Region about Humboldt Bay, Bucksport 0 Comment
  HSC75735  Trillium albidum Bill Copeland 1980-6-26 296 Humboldt Near Murphy Meadow 914 Comment
  HSC101813  Trillium albidum Kjirsten A. Wayman 2012-5-4 316 Humboldt Bald Hills Road, 16.6 mi. from Hwy 101, N 41.15213 deg. W 123.88952 deg. 768 Comment
  HSC28002  Trillium kurabayashii Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  CAS-BOT-BC133394  Trillium ovatum L. R. Abrams 1922-6-25 8257 Humboldt North of Mad River near Arcata Comment
  UC30089  Trillium ovatum Harley P. Chandler June, 1901 1281 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 304 Comment
  CAS-BOT-BC133393  Trillium ovatum Doris K. Kildale 1927-3-20 2929 Humboldt Philipsville, south fork of Eel River Comment
  HSC99354  Trillium ovatum subsp. oettingeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 3 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC146241  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1906-6-10 2477 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  JEPS11165  Triphysaria versicolor subsp. versicolor J. P. Tracy 1944-5-14 17467 Humboldt Eureka Comment
  UC27193  Triphysaria versicolor subsp. versicolor Harley P. Chandler May, 1901 1101 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC27022  Triphysaria versicolor subsp. versicolor Brad Klipfel 1972-5-5 1 Humboldt S of Lanphere's barn, Humboldt Bay Comment
  CAS-BOT-BC199622  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt At Corral Prairie 1524 Comment
  SEINET5424014  Trisetum canescens J. B. Davy, W. C. Blasdale 5036 Humboldt Walkers Valley, hwy 25 Comment
  HSC13424  Trisetum cernuum E. W. Styskel 1964-5-8 84 Humboldt 2 mi. W of Rio Dell off Blue Slide Rd. Comment
  JEPS75416  Trisetum cernuum W. L. Jepson 1932-7-26 16420 Humboldt Bull Creek 121 Comment
  UC526696  Trisetum cernuum Joseph P. Tracy 1926-6-6 7557 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges 1066 Comment
  UC552797  Trisetum cernuum Joseph P. Tracy 1935-5-24 13814 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UCD93908  Trisetum cernuum Joseph P. Tracy 1900-5-22 800 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET200769  Triteleia bridgesii Joseph P. Tracy 1949-6-25 18345 Humboldt Trinity Summit Mud Springs in serpentine area 1341 Comment
  HSC39173  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-28 - 1229 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC52241  Triteleia peduncularis J. P. Tracy 1903-6-12 1920 Humboldt Eureka vicinity 0 Comment
  CAS-BOT-BC85852  Tsuga heterophylla P. C. Everett; E. K. Balls 1953-10-13 18654 Humboldt 11.3 mi. to 16.6 mi. e. of jct. with Hwy 101 on Hwy 299 from Blue Lake 640 Comment
  CAS-BOT-BC213075  Ulex europaeus Doris K. Kildale 1925-12-27 1448 Humboldt Kneeland Prairie road near junction with old road 609 Comment
  CAS-BOT-BC213076  Ulex europaeus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  HSC14485  Umbellularia californica W. R. Rogers 1965-5-6 293 Humboldt 3 mi. E of Arcata, Hwy. 299 Comment
  SEINET12103378  Umbellularia californica J. P. Tracy 1950-12-10 s.n. Humboldt no further locality Comment
  CAS-BOT-BC404069  Urtica dioica subsp. holosericea Henry M. Pollard 1956-10-13 s.n. Humboldt Bank of Klamath River at Orleans Hotel, Orleans Comment
  HSC24670  Utricularia macrorhiza W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  HSC59491  Utricularia macrorhiza M. A. Ericksen 1979-4-24 217 Humboldt Behind Fieldbrook School, in Fieldbrook Comment
  CAS-BOT-BC193963  Vaccinium cespitosum Doris Kildale 1931-5-10 10581 Humboldt Snow Camp Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC28133  Vaccinium ovatum J. D. Ackerman, A. M. Montalvo 1973-3-27 45 Humboldt 1.5 mi. N of Manila Comment
  HSC90226  Vaccinium ovatum L. Watson, J. Meninga Mar 1991 20 Humboldt Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail Comment
  RSA46803  Vaccinium ovatum Doris K. Kildale 1927-5-15 3189 Humboldt Big Lagoon Flat. Comment
  SEINET3107074  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC1197766  Vaccinium ovatum Joseph P. Tracy 1924-5-4 6672 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC412665  Vaccinium ovatum Harley P. Chandler May 1901 1167 Humboldt Eureka North Coast Ranges 30 Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  CAS-BOT-BC199425  Vaccinium parvifolium Doris K. Kildale 1927-3-25 3012 Humboldt Humboldt Hill near Bucksport School House 30 Comment
  HSC66213  Vaccinium parvifolium M. Sacks 1977-5-8 1 Humboldt S end of Patricks Point State Park, ca. 0.2 mi. W of Hwy. 101 and 5 mi. N of Trinidad 61 Comment
  HSC7924  Vaccinium parvifolium P. Markle 1962-5-3 18 Humboldt Arcata Community behind HSU campus 30 Comment
  HSC97947  Valeriana californica Cara Witte 2007-6-26 359 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/4 mile east from intersection with National Forest 1. 1457 Comment
  SEINET12335251  Valeriana sitchensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -313 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC1044709  Valeriana sitchensis subsp. scouleri Fred G. Meyer, Lillian E. Meyer 1947-7-12 2222 Humboldt 5 mi e Berry Summit (on U.S. 299) Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC76052  Vancouveria hexandra W. R. Dudley 1899-6-1 s.n. Humboldt Unspecified. Comment
  CAS-BOT-BC76053  Vancouveria hexandra L. R. Abrams 1916-7-21 6150 Humboldt Grizzly Creek. Comment
  RSA438026  Vancouveria planipetala Miss Hutchinson s.n. Humboldt Unspecified. Comment
  HSC65843  Veratrum insolitum Gail Newton 1980-6-16 184 Humboldt Near Onion Mtn. 1280 Comment
  UC1198210  Veratrum insolitum Joseph P. Tracy 1947-7-5 17820 Humboldt in open prairie Trinity Summit 1524 Comment
  HSC98712  Verbascum blattaria Cara Witte 2007-8-1 616 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/2 mile north of intersection with Forest Service Road 5N09. 1414 Comment
  HSC21737  Verbena lasiostachys D. E. Anderson 1963-10-6 2880 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC75284  Verbena menthifolia J. O. Sawyer, D. A. Thornburgh 1980-9-9 4084 Humboldt Mill Creek Lake and surrounding meadows Comment
  SD92993  Veronica americana W. Bertsch 1953-7-30 232 Humboldt Highway 101 near Arcata Comment
  HSC21223  Veronica arvensis William J. Ferlatte 1963-5-15 47 Humboldt Waste place near 11th and B Sts., Arcata Comment
  UC1192005  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt at the southern outskirts of Eureka Comment
  JEPS16498  Veronica scutellata Milo S. Baker 1923-8-3 173 Humboldt 6 mi n of Arcata; North Coast trip Comment
  HSC21200  Veronica serpyllifolia subsp. humifusa D. E. Anderson 1965-9-5 4093 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC73151  Vicia americana var. americana M. A. Baker 1980-5-18 1304 Humboldt Near Black Mtn. 1006 Comment
  HSC98838  Vicia americana var. americana Cara Witte 2008-7-16 914 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1197478  Vicia americana var. americana Joseph P. Tracy 1939-4-18 16216 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC15266  Vicia gigantea S. R. Johnson 1965-3-28 21 Humboldt 1.5 mi. N of Luffenholtz Beach 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
  UCD108675  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET12157875  Vicia hirsuta J. P. Tracy 1944-1 17474 Humboldt slowly spreading in Eureka (same place as # 17428) Comment
  RSA91237  Vicia sativa F. W. Peirson 1923-7-11 3625 Humboldt 7 miles N of Arcata. Comment
  UC169306  Vicia tetrasperma Joseph P. Tracy 1912-7-7 3739 Humboldt Eureka; Northern Coast Region 0 Comment
  UC1761500  Viola Milo S. Baker 1923-7-30 157 Humboldt near Fredericksons Ranch, Eureka-Bridgeville Hwy Comment
  UC1198463  Viola adunca Joseph P. Tracy 1926-3-14 7384 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1761516  Viola adunca Milo S. Baker 1923-7-30 158 Humboldt Iaqua, 1/2 mi from Fredricksons house (near head of Yager Creek) 670 Comment
  CAS-BOT-BC263948  Viola adunca L. B. Kildale 1927-7-23 3788 Humboldt Hoaglin Lake near [Lass---s] Peaks 1524 Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  HSC55596  Viola cuneata Overton, Butler 1979-7-23 9407 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC74650  Viola glabella M. A. Baker 1980-5-17 1242 Humboldt Near Le Perron Peak 1066 Comment
  HSC85895  Viola glabella Barry Silver 1986-4-23 534 Humboldt Bair Rd., 10 mi. NW of junction with Hwy. 299: Pine Ridge Summit Area 997 Comment
  UC1198465  Viola glabella Joseph P. Tracy 1933-7-26 12907 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1630 Comment
  HSC21784  Viola glabella Elrid H. Spinas 1948-5-15 7 Humboldt Horse Mtn.; 1 mi. off Hwy. 299 Comment
  HSC21788  Viola glabella D. K. Smith 1968-4-8 13 Humboldt On West End Rd., ca. 3 mi. from U.S. 299 Comment
  SDSU11371  Viola glabella L. N. Harvey Humboldt September, 1930 Comment
  UC35267  Viola glabella W. C. Blasdale 1896-6-5 Humboldt Fitzgerald's Comment
  HSC97502  Viola hallii C. Witte 2007-5-8 3 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  RSA254792  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside the airstrip at Kneeland Prairie. Comment
  UC1198428  Viola lobata subsp. integrifolia Joseph P. Tracy 1949-8-4 18421 1/2 Humboldt Mud Springs; Trinity Summit, Mud Springs 1341 Comment
  HSC34953  Viola ocellata Thomas W. Nelson 1975-5-24 1867 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC249589  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC71027  Viola ocellata Thomas W. Nelson 1977-4-20 3319 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC1198451  Viola ocellata Joseph P. Tracy 1919-5-31 5163 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC1537666  Viola ocellata Gordon H. True Jr. 1936-5-11 460 Humboldt 12 mi w of Miranda (e slope of Elk Ridge); Elk Ridge 457 Comment
  HSC21853  Viola sempervirens John A. Dubois 1962-4-28 2 Humboldt 20 mi. E of Arcata Comment
  HSC21857  Viola sempervirens D. E. Anderson 1962-2-10 1915 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  SEINET11978067  Viola sempervirens Unknown 1936-1 113398 Humboldt Comment
  HSC32889  Viola sheltonii Thomas W. Nelson 1973-5-30 975 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  UC1198442  Viola sheltonii Joseph P. Tracy 1935-7-24 14167 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC198761  Vulpia bromoides Harley P. Chandler 1901-5-1 1119 Humboldt Humboldt Bay 30 Comment
  HSC90685  Vulpia bromoides Gail Newton 1982-6-5 3587 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC34061  Vulpia bromoides J. P. Tracy 1900-6-23 858 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC198762  Vulpia bromoides Doris K Niles 1950-6-1 5 Humboldt Island in Eel River, Niles field. 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
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  CAS-BOT-BC184733  Vulpia myuros subsp. megalura Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  UC180482  Vulpia myuros var. myuros Joseph P. Tracy 1914-5-14 4432 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC20448  Whipplea modesta J. Sandborg, F. Sandborg May 1968 10 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC24392  Whipplea modesta J. O. Sawyer 1970-6-24 2237 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 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
  HSC100587  Whipplea modesta Carl C. Marshall Jul 1886 332 Humboldt Mountains. Comment
  HSC20444  Whipplea modesta Francis Winter 1960-5-7 Humboldt 2 mi. N of Hwy. 299 on Redwood Valley Rd. 457 Comment
  POM161064  Woodwardia fimbriata Joseph P. Tracy 1926-11-7 7824 Humboldt North Coast Region; around Humboldt Bay: Table Bluff 152 Comment
  HSC102193  Wyethia angustifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1107 Humboldt Andy's Camp 1564 Comment
  HSC79383  Wyethia angustifolia Kenneth Clark 1981-5-24 1393 Humboldt Abalone Pt. 15 Comment
  RSA787174  Wyethia angustifolia C. B. Wolf 1927-8-29 1200 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  UCR40033  Wyethia angustifolia Kenneth Clark 1981-5-24 1393 Humboldt North Coast, Abalone Point, 'Point Delgada Q. 15 Comment
  CAS-BOT-BC382927  Wyethia angustifolia D. E. Breedlove 1961-7-4 654 Humboldt On U.S. Highway 299, 13.7 miles west of Willow Creek 731 Comment
  UC1199260  Wyethia angustifolia Joseph P. Tracy 1936-6-10 14928 Humboldt w of mouth South Fork Trinity River 457 Comment
  HSC73870  Wyethia longicaulis Gail Newton 1980-7-14 1462 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC12017  Xanthium strumarium Wilbur Peterson 1970-10-31 94 Humboldt Scotia bluffs, edge of Eel River. Comment
  HSC8422  Zeltnera muehlenbergii D. E. Anderson 1962-7-14 2264 Humboldt Comment
  UC15054  Zigadenus micranthus var. micranthus Joseph Burtt Davy 1899-6-10 5391 Humboldt Hubbard's Station Comment
  UC159987  Zostera marina R. W. Skinner Oct 1910 Humboldt Eureka Comment



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