Search Results — 2000 specimen records retrieved (1379 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  CAS-BOT-BC73468  Abies X shastensis Doris K. Kildale 1925-8-17 1200 Humboldt Trinity Summit 1889 Comment
  CAS-BOT-BC77965  Abies concolor Doris K. Kildale 1926-9-5 2612 Humboldt Lasseck's Peaks, top of ridge at Goat Camp 1661 Comment
  HSC71112  Abies concolor M. A. Baker 1980-5-23 1386 Humboldt Near Buck Mtn. 1524 Comment
  HSC49509  Abronia latifolia R. York 1979-5-18 298 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  CAS-BOT-BC383849  Abronia latifolia Doris K. Kildale 1926-6-18 2406 Humboldt Golf Bluffs Comment
  UC55523  Abronia latifolia P. E. Goddard 1901-8-6 180 Humboldt Regna Beach Comment
  CAS-BOT-BC233751  Abronia umbellata Doris K. Kildale 1926-6-18 2401 Humboldt Gold Bluffs Beach Comment
  NY679513  Abronia umbellata subsp. breviflora H. E. Parks 09 1941 24212 Humboldt Mouth of Little River. Comment
  HSC98194  Acacia decurrens Gary J. Stebbins 1970-3-3 16 Humboldt Along Maple Creek Rd. .5 mi. W of Maple Creek Bridge. Comment
  HSC57964  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-31 11671 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1199012  Acer macrophyllum Joseph P. Tracy 1912-3-31 3569 Humboldt near mouth Lindsey Creek (Mad River); Northern Coast Ranges, Mad River 30 Comment
  UC1199013  Acer macrophyllum Joseph P. Tracy 1914-8-23 4592 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (Region about Humboldt Bay) 0 Comment
  CAS-BOT-BC331586  Acer macrophyllum Doris K. Kildale 1926-9-5 2636 Humboldt Lasseck's Peaks, on trail between Covel[?] Camp and Red Rock 1676 Comment
  UC1222920  Achillea millefolium Joseph P. Tracy 1949-8-4 18418 Humboldt in serpentine area Mud Springs; Trinity Summit 1341 Comment
  HSC97562  Achlys californica Cara Witte 2007-6-1 177 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  HSC56973  Achlys triphylla Overton, Butler 1979-7-23 9506 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET8072990  Achlys triphylla W. Roderick 1967-7-22 s.n. Humboldt Ca 5 miles E of Carlotta. 46 Comment
  UC187245  Achnatherum lemmonii Joseph P. Tracy Jul 27 1908-Jul 30 1908 2707 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC40043  Achnatherum lemmonii Bolander 1866-4 Humboldt Red Mountain Comment
  UCD50676  Achnatherum lemmonii A. H. Murphy 1947-6-24 s.n. Humboldt Horse Mtn., s.e. of Berry's Summit (US Hwy. 299) east of Blue Lake, Humboldt County, California. Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  UC668212  Achyrachaena mollis Joseph P. Tracy 1938-6-9 15889 Humboldt 2 mi w on top of ridge Harris 914 Comment
  SBBG67348  Acmispon americanus R. Hartwell 1938-8-3 98 Humboldt near Weott Comment
  BLMAR508  Acmispon brachycarpus Jennifer Wheeler 2009-5-12 508 Humboldt Red Mountain, In serpentine meadow S of School Section Creek 792 Comment
  UCD104321  Acmispon parviflorus P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  HSC90187  Acmispon wrangelianus Jean Hanson 1980-5-24 54 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  HSC55637  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-24 9668 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC81698  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5020 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  UC169341  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie 762 Comment
  HSC37414  Adiantum aleuticum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 508 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC202610  Aesculus californica L. R. Abrams 1916-7-10 5965 Humboldt Between Harris and Alder Pt. Comment
  POM174060  Agoseris grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt At Eureka 0 Comment
  UC1222929  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt 1 mi n, road crosses sides of the Friday Ridge Friday's Camp; Grouse Mountain Comment
  UC92278  Agoseris heterophylla var. heterophylla W. W. Price 1900-6-30 Humboldt Mad River Comment
  POM319539  Agrostis Patricia Wilder 1968-8-21 4367 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  CAS-BOT-BC127521  Agrostis capillaris Stuart K. Harris 1959-7-10 19935 Humboldt Fortuna. Grounds Redwood Hospital. Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  UC36912  Agrostis exarata Harley P. Chandler June, 1901 1512 Humboldt Klamath River 426 Comment
  UC552751  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad 3 Comment
  UCD52425  Agrostis exarata J. E. Street 1950-6-24 s.n. Humboldt Bryalands. Comment
  HSC98744  Agrostis gigantea Cara Witte 2007-7-12 522 Humboldt Forest Service Road 5N10. Approximately 3 miles from intersection with Ammon Ridge Road. 1306 Comment
  SEINET10509880  Agrostis gigantea Joseph P. Tracy 1902-7-4 Tracy 1758 Humboldt Spreading by stolons. Immediate vicinity of Eureka. 0 Comment
  HSC89506  Agrostis hallii M. Roantree 1985-5-30 71 Humboldt SW side of Trinidad Head. Comment
  UC526881  Agrostis hallii Joseph P. Tracy 1925-8-22 7237 Humboldt North Fork of Eel River, around Humboldt Bay Northern Coast Region, Humboldt Bay 30 Comment
  CAS-BOT-BC139126  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  CAS-BOT-BC139059  Agrostis pallens Joseph P. Tracy 1934-7-13 13396 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  CDA20604  Agrostis pallens B. Freeman 2005-8-1 PDR 1368990 Humboldt North Coast; Big Lagoon. 0 Comment
  HSC102189  Agrostis pallens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1103 Humboldt Andy's Camp 1564 Comment
  HSC40393  Agrostis stolonifera Thomas W. Nelson, James Nelson 1976-7-28 3046 Humboldt W of Alder Springs along 2S08 1555 Comment
  RSA10023  Agrostis variabilis Joseph P. Tracy 1930-7-19 8948 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  UC1103302  Aira caryophyllea Joseph P. Tracy 1913-6-19 4205 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC1103303  Aira caryophyllea J. P. Tracy 1899-7-22 330 Humboldt Immediate vicinity of Eureka 0 Comment
  UC922022  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt e King's Peak; Wilder Ridge 762 Comment
  SEINET201011  Aira praecox J. P. Tracy 1932-5-16 10103 Humboldt Near Samoa on Humboldt Bay north coast region 6 Comment
  SEINET3917480  Aira praecox Paul Dryden 1975-5-24 203 Humboldt Samoa Dunes. Dunes off Samoa Blvd. across from the boat landing.; 0 Comment
  UCD55803  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  SEINET11683263  Aira praecox K. S. Erdman 1970-1 4808 Humboldt Gold Bluff Beach, ca 3 mi NW of Berry Glen & US 101 (Redwood NP) Comment
  HSC102513  Allium amplectens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1499 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  SEINET12044091  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  UC666887  Allium amplectens Joseph P. Tracy 1936-6-17 14975 Humboldt Little Van Duzen River at highway crossin Little Van Duzen River 713 Comment
  UC275545  Allium bolanderi Joseph P. Tracy 1923-6-26 6377 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, Koby's Ranch); Northern Coast Ranges, Brannan Mountain, Koby's Ranch 762 Comment
  UC666928  Allium bolanderi Joseph P. Tracy 1932-6-14 10139 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 609 Comment
  UC666929  Allium bolanderi Joseph P. Tracy 1933-7-9 12652 Humboldt Brannan Mountain 1066 Comment
  HSC100546  Allium campanulatum Carl C. Marshall Jun 1886 304 Humboldt Trail E of Hoopa. Comment
  RSA47172  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lasseck s Peaks Comment
  HSC2937  Allium falcifolium D. E. Anderson 1965-6-1 3772 Humboldt Along Friday Ridge Rd. 2 mi. NE of its junction with Titlow Hill Rd. 1159 Comment
  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
  HSC66828  Allium hoffmanii M. A. Baker 1980-7-11 2791 Humboldt Near Red Mtn. 1341 Comment
  CDA2736  Allium triquetrum E. C. Whitney 1965-4-19 Humboldt Lamphire Road & nearby field, Arcata Bottoms. 0 Comment
  UCSB18228  Allium unifolium 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  UC502990  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt in meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  SACT002769  Alnus oregona J. Clark 1972-4-22 Humboldt 26 miles north of Eureka on Highway 101. Roadwood Forest. Comment
  POM160903  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt North Dobbyn Creek. 152 Comment
  HSC12947  Alnus rubra Steve Dorei 1970-10-9 27 Humboldt Arcata, near NE entrance to Wildlife building on Humboldt State University campus Comment
  HSC3395  Alnus rubra D. A. Shally 1965-5-15 52 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  SEINET10895894  Alnus rubra Harold E. Parks, Susan T. Parks 1938-4-1 Parks 24126 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC58068  Alnus viridis subsp. sinuata G. L. Clifton, Griswold 1979-8-1 11950 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC99022  Alnus viridis subsp. sinuata Cara Witte 2008-7-16 908 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  CAS-BOT-BC138147  Alopecurus aequalis var. aequalis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley place, Orleans region. Comment
  RSA152374  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt Mouth of Elk River, near Eureka. Comment
  RSA313194  Alopecurus geniculatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1164 Humboldt Borders of irrigation ditch, 1 mile south of Fields Landing, Eel River Valley. Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  UC1152031  Alopecurus pratensis Joseph P. Tracy 1951-6-21 19517 Humboldt cultivated in experimental grass garden of Albert H. Murphy at Everett Beck's Ranch Hydesville Comment
  SEINET201057  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  CAS-BOT-BC13671  Ambrosia artemisiifolia H. M. Pollard 1947-8-27 s.n. Humboldt Near Orleans Comment
  CDA9965  Ambrosia chamissonis T. C. Fuller 1958-6-17 1905 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  UC582625  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt s end, along coast at Dry Lagoon Stone Lagoon 3 Comment
  RSA264507  Ambrosia chamissonis var. chamissonis H. E. Parks 1941-09 24214 Humboldt Mouth of Little River Comment
  CAS-BOT-BC142901  Amelanchier alnifolia var. semiintegrifolia Thomas Nelson 1977-6-15 3438 Humboldt Along old road to ski area, Willow Creek Quad. - North Coast Ranges 1371 Comment
  HSC41333  Amelanchier pallida Brad Klipfel 1974-9-17 570 Humboldt Horse Mtn. Comment
  HSC55995  Amelanchier pallida Overton, Butler 1979-7-31 11432 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC137868  Ammophila arenaria Mary O'Conor 1921-9-26 s.n. Humboldt Eureka. Comment
  CDA18243  Ammophila arenaria G. D. Barbe, T. C. Fuller 1974-6-19 1881 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  CHSC2118  Ammophila arenaria M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  UC1103317  Ammophila arenaria Joseph P. Tracy 1947-7-3 17767 Humboldt sand dunes at mouth of Little R. 6 Comment
  UCR121763  Ammophila arenaria George K. Helmkamp, E. A. Helmkamp 2001-7-8 7024 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC3537  Amsinckia intermedia Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  HSC17832  Anagallis arvensis Allan R. Marshall 1962-5-5 4 Humboldt Along N Fork of Mad River at Camp Bauer 76 Comment
  HSC17842  Anagallis arvensis S. J. Hawks 1965-5-18 79 Humboldt Clam Beach Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC69754  Anaphalis margaritacea Thomas W. Nelson 1977-9-22 3753 Humboldt At turnoff to Arcata Redwood Co. Comment
  UCR48597  Anaphalis margaritacea R. D. Goeden, Don W. Ricker 1987-9-2 7 A Humboldt Loleta, along Cannibal Road 8 Comment
  RSA318601  Anaphalis margaritacea Patricia Wilder 1968-8-21 4372 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  SEINET10761471  Anaphalis margaritacea J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13013 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  HSC55868  Anemone deltoidea G. L. Clifton, Griswold 1979-7-25 10891 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC74292  Anemone deltoidea M. A. Baker 1980-7-22 3079 Humboldt Near Salmon Mtn. 1820 Comment
  HSC74307  Anemone deltoidea M. A. Baker 1980-7-23 3171 Humboldt Near Orleans Mtn. 1859 Comment
  SBBG2107  Anemone deltoidea H. and M. Dearing 1933-5-16 360 Humboldt Weott Comment
  CAS-BOT-BC391787  Anemone deltoidea Joseph P. Tracy 1932-7-13 10489 Humboldt Klamath Mountains, Trinity Summit. Woods near Corral Prairie 1524 Comment
  HSC45033  Anemone deltoidea Maralyn O'Meara 1973-6-12 206 Humboldt Above Clear Lake Comment
  UC1196189  Anemone deltoidea Joseph P. Tracy 1923-5-13 6200 Humboldt Strong's Station, on Van Duzen River Strong's Station; North Coast Ranges 60 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
  HSC41238  Anemone oregana var. oregana Brad Klipfel 1974-5-27 376 Humboldt Horse Mountain Comment
  HSC55992  Angelica arguta Overton, Butler 1979-7-31 11422 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1103417  Angelica genuflexa Joseph P. Tracy 1936-8-17 15148 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  HSC71410  Angelica hendersonii J. M. DiTomaso 1980-8-3 1831 Humboldt Big Lagoon State Park, S end, 50m N of boat ramp, 40m from Lagoon Comment
  UCD127224  Angelica hendersonii Joseph DiTomaso 1980-6-29 1636 Humboldt south side of Elkshead. 2 miles north of Trinidad. Comment
  HSC60374  Angelica lucida J. M. DiTomaso 1979-5-20 1058 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  HSC101671  Angelica tomentosa Cara Witte 2008-8-6 999 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC1197374  Angelica tomentosa Joseph P. Tracy 1939-8-16 16411 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  UC89528  Anisocarpus madioides Harley P. Chandler June, 1901 1313 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC5979  Anisocarpus madioides H. E. Parks, J. P. Tracy 1934-7-6 5103 Humboldt Cameron Hill, Kneeland 610 Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  CAS-BOT-BC84720  Anthemis cotula Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC38792  Anthemis cotula J. D. Ackerman 1975-8-31 655 Humboldt Lanphere Rd. near Mad River Slough, Arcata Bottoms 2 Comment
  CAS-BOT-BC289124  Anthoxanthum occidentale Doris K. Kildale 1926-3-28 1671 Humboldt Redwood Creek at Berry's 289 Comment
  HSC90402  Anthoxanthum occidentale Michele Lewis, Lisa Sims, Roger Cook 1992-5-12 49 Humboldt Behind the Redwood Science Lab, down gated fire access road 50 m, 10 m to right of trail. Comment
  SEINET271527  Anthoxanthum occidentale Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15071 Humboldt Bolling Grove State Park ; unspecified Comment
  HSC102648  Anthoxanthum odoratum J. P. Smith 2009-5-31 12609 Humboldt Bald Hills Road. 791 Comment
  RSA286350  Anthoxanthum odoratum R. F. Thorne 1974-7-29 45071 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UCD56164  Anthoxanthum odoratum H. L. Person 1932-5-10 s.n. Humboldt Arcata. 45 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
  JEPS83360  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 354 Humboldt 9.1 mi s Kneeland Road junction with Mountain View Road (on Kneeland Road) Comment
  RSA54142  Antirrhinum vexillocalyculatum subsp. breweri H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  SEINET12104678  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC64310  Aquilegia formosa var. formosa J. P. Smith 1973-5-26 6866 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM118664  Aquilegia formosa var. truncata Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  HSC57337  Arabis glabra Walter Overton, Butler 1979-7-26 10004 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  HSC58034  Arabis glabra G. L. Clifton 1979-7-31 11869 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC73735  Arabis glabra M. A. Baker 1980-7-22 3085 Humboldt Near Salmon Mtn. 1820 Comment
  UC213505  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  JEPS44156  Arctium minus W. L. Jepson 1936-8-12 17888 Humboldt Philipsville South Fork Eel River Comment
  UC1198678  Arctostaphylos Joseph P. Tracy 1933-4-9 10970 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC902045  Arctostaphylos X candidissima Joseph P. Tracy 1949-8-4 18405 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC7606  Arctostaphylos canescens Paul Shields May 1955 Humboldt 2 mi. N of Willow Creek Comment
  CAS-BOT-BC24093  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC23729  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23744  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old coast road, 7 miles so. of Honeydew 304 Comment
  CAS-BOT-BC23781  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's. On ridge 1 mile S. of road. 1219 Comment
  CAS-BOT-BC23783  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23790  Arctostaphylos columbiana Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon 6 Comment
  CAS-BOT-BC23796  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  CAS-BOT-BC23825  Arctostaphylos columbiana Doris K. Kildale 1927-3-25 3011 Humboldt Humboldt Hill Comment
  CHSC39441  Arctostaphylos columbiana B. A. Stein 1981-11-1 568 Humboldt US Hwy 101, 2 miles north of Patrick Point. 60 Comment
  UC1225896  Arctostaphylos columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie 670 Comment
  UC176958  Arctostaphylos columbiana Joseph P. Tracy 1912-7-25 3816 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCD50760  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1168 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  RSA134600  Arctostaphylos columbiana var. columbiana P. C. Everett, E. K. Balls, George B. Everett 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. Hwy, 299, Arcata to Willow Creek. 274 Comment
  RSA381132  Arctostaphylos columbiana var. columbiana Roman Gankin, W. Richard Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of US 101 on Bald Hills Road from Orick. French Camp Ridge. Comment
  RSA252144  Arctostaphylos columbiana var. tracyi Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon. 61 Comment
  HSC7629  Arctostaphylos glandulosa Unknown Humboldt 1 mi. W of Queens Rd. 610 Comment
  JEPS38648  Arctostaphylos glandulosa subsp. glandulosa W. L. Jepson 1932-8-8 16479 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
  RSA632788  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27792 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632798  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27760 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC74675  Arctostaphylos manzanita Gail Newton 1981-5-16 2177 Humboldt Near Bug Creek. 1228 Comment
  RSA633014  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27807 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633025  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27805 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC38837  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  UC1198677  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1923-3-17 6155 Humboldt Garberville Northern Coast Ranges 121 Comment
  UC585900  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  HSC59028  Arctostaphylos nevadensis M. A. Baker 1979-6-7 794 Humboldt Telescope Peak 1250 Comment
  UC585957  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40062  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40068  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2585 Humboldt On road from Orick to Martin's Ferry. 716 Comment
  CAS-BOT-BC46632  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8136 Humboldt Horse Mountain. 1432 Comment
  UC585903  Arctostaphylos patula Joseph P. Tracy Jul 16 1930-Jul 19 1930 9055 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  CAS-BOT-BC46638  Arctostaphylos patula C. Hart Merriam 1919-8-10 s.n. Humboldt Wetchpek, Klamath Canyon. Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC47206  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC28130  Arctostaphylos uva-ursi J. D. Ackerman, A. M. Montalvo 1973-3-27 42 Humboldt 1.5 mi. N of Manila Comment
  HSC39960  Arctostaphylos uva-ursi Linda M. Barker 1976-4-13 1379 Humboldt 3 mi. W of Arcata Comment
  HSC7725  Arctostaphylos uva-ursi S. J. Hawks 1965-3-19 10 Humboldt 1/4 mi. W of Fairhaven Comment
  HSC7728  Arctostaphylos uva-ursi Unknown 1960-4-30 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  HSC7733  Arctostaphylos uva-ursi H. P. Chandler May 1901 1133 Humboldt Humboldt Bay 3 Comment
  SEINET2031083 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-1 16740 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  UCD52028  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 554 Humboldt Sand dunes west of road. 1.3 miles south of Samoa, Samoa Peninsula, Humboldt County, California. Comment
  UCD52029  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt 45 Comment
  RSA254756  Arctostaphylos uva-ursi var. coactilis Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head north of Trinidad. Comment
  HSC89499  Armeria maritima subsp. californica M. Roantree 1985-5-24 50 Humboldt N side of Trinidad Head on slope below trail. Comment
  RSA286359  Armeria maritima subsp. californica Robert F. Thorne 1974-7-29 45068 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  RSA296782  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2 -150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  CHSC23908  Armeria maritima var. californica N. Dennis; D. E. Anderson 1965-6-8 108 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sand dunes and flats along the ocean. Comment
  HSC38495  Arnica cernua D. E. Anderson, J. P. Smith 1971-6-18 - 1088 Humboldt Horse Mtn. Comment
  CAS-BOT-BC82425  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  HSC73159  Arnica discoidea M. A. Baker 1980-5-18 1322 Humboldt Near Black Mtn. 1006 Comment
  HSC4695  Arnica discoidea Lincoln Constance 1934-7-19 910 Humboldt Near the summit of Grasshopper Mtn.; south of Bull Creek Flat, south fork of the Eel River 915 Comment
  UC1223002  Arnica discoidea Joseph P. Tracy 1947-7-9 17833 Humboldt just above, along lower slopes of Horse Mountain Arford Cabin Ski Lodge; Horse Mountain 1219 Comment
  UC29649  Arnica discoidea H. N. Bolander 1867-1 Humboldt Humboldt Co. Comment
  UCD129380  Artemisia douglasiana James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-9 5032 Humboldt Mad River above the Fish Hatchery. Comment
  CHSC266  Artemisia pycnocephala M. Anthony 1960-5-1 Humboldt Coastal. Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  HSC40298  Artemisia pycnocephala Linda M. Barker 1976-7-5 1633 Humboldt 3 mi. W of Arcata. Comment
  HSC4741  Artemisia pycnocephala J. W. Johnson 1961-9-4 1098 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  JEPS17992  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt near lagoon and lighthouse Humboldt Bay (between Fairhaven and end of sandy point off Eureka) Comment
  POM54272  Artemisia suksdorfii Jos Burtt Davy, W. C. Blasdale 1899-6-15 5544 Humboldt Near Scotia Comment
  RSA40781  Artemisia suksdorfii C. B. Wolf 1944-10-26 11470 Humboldt Redwood Highway at Junction of road to Crannell 15 Comment
  SD56775  Artemisia suksdorfii Darley F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on Cal. 36. 149 Comment
  HSC55869  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-25 10893 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA20964  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  CAS-BOT-BC400531  Asarum caudatum Joseph P. Tracy 1935-7-23 14160 Humboldt Trinity Summit. Lower end of Brett Hole 1584 Comment
  RSA96571  Asarum caudatum E. K. Balls 1954-5-31 19496 Humboldt 4 mi. ne of Strongs Station, Van Duzen river, on Yager Road Comment
  SDSU2540  Asarum caudatum Harvey 1938-8-13 2242 Humboldt Humbolt State Redwood Park. Comment
  SEINET8189639 Image available Asarum caudatum C. C. Harris, S. K. Harris 1936-1 Humboldt Redwood forest on Yager Road from Carlotta, elevation about 1500 feet, Humboldt County, California. 457 Comment
  HSC40034  Asclepias cordifolia Thomas W. Nelson, Jane P. Nelson 1976-6-22 2881 Humboldt Just E of Goat Mtn. lookout. 1666 Comment
  UC154171  Asclepias fascicularis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA46483  Asclepias fascicularis Doris K. Kildale 1925-9-7 s.n. Humboldt Klamath at mouth of Dillon Cr. 762 Comment
  UC1222242  Asclepias speciosa Joseph P. Tracy 1950-8-20 19321 Humboldt 8 mi below Orleans (at Big Bar, Klamath River near Slate Creek); Klamath River, Big Bar 121 Comment
  HSC73050  Aspidotis densa M. A. Baker 1980-7-11 2777 Humboldt Near Red Mtn. 1341 Comment
  HSC94176  Astragalus agnicidus Melisa Brooks 2000-6-14 Humboldt Pacific Lumber Co. land 671 Comment
  UC502993  Astragalus agnicidus J. C. Tario Jr. 1931-8-20 Humboldt 4 mi s Miranda (near Bear Buttes, local on Tosten and Pierce Ranch); s of Miranda, nr Bear buttes, Tosten and Pierce Ranch 762 Comment
  CAS-BOT-BC193132  Astragalus rattanii var. rattanii Volney Rattan 1884-1-1 s.n. Humboldt Headwaters Eel River Comment
  RSA135343  Astragalus rattanii var. rattanii Volney Rattan 1884-1 s.n. Humboldt Big Creek. Comment
  CAS-BOT-BC193140  Astragalus rattanii var. rattanii Volney Rattan 1884-1-1 s.n. Humboldt Eel River Comment
  JEPS109394  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  OBI1144  Athyrium filix-femina Robert J. Rodin 1941-8-2 Humboldt Under redwood trees in shady places near Pepperwood Comment
  CAS-BOT-BC69453  Athyrium filix-femina subsp. cyclosorum Carl B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 mi. below Blocksburg on road to Bridgeville. 304 Comment
  HSC76301  Athyrium filix-femina var. cyclosorum Teresa Prendusi 1981-7-9 176 Humboldt Near Cedar Camp. 1268 Comment
  UC902198  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1949-8-26 18512 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  UC922657  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  UCSB30585  Athyrium filix-femina var. cyclosorum Edwards, David 1974-9-2 Humboldt Ca. 10 ft. E. of dirt road, ca. 100 yds. from its jct. with Fickle hill Rd., Arcata 3 Comment
  UC1198298  Athysanus pusillus Joseph P. Tracy 1927-3-27 7848 Humboldt Trinity River Valley near the South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  HSC101657  Avena barbata J. P. Smith, J. O. Sawyer 2011-4-23 13117 Humboldt Along Salmon Creek Rd., 3.4 miles from its junction with U.S. 101. 203 Comment
  HSC65451  Avena barbata J. P. Smith 1973-5-26 6807 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC100249  Avena fatua J. P. Smith, & J. O. Sawyer 2010-5-2 12793 Humboldt At junction of Hwy. 96 and Big Rock Access Road. 145 Comment
  SEINET4175779  Avena fatua Joseph P. Tracy 1926-5-9 7457 Humboldt Hills near Bridgeville 610 Comment
  UCD56455  Avena fatua Kathleen Moore 1964-7-14 s.n. Humboldt Kneeland. 1/2 mile north of Star Barn. Comment
  SEINET200595 Image available Azolla caroliniana J. P. Tracy 1911-6-25 3245 Humboldt Covering several acres of pool back of Holmes Mill Bucksport northern coast region of California Comment
  CAS-BOT-BC98770  Baccharis douglasii Frank W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake Comment
  SD39654  Baccharis glutinosa Edith A. Purer 1932-7-27 4139 Humboldt Samoa Comment
  UC1198287  Barbarea orthoceras Joseph P. Tracy 1914-6-28 4516 Humboldt near Hydesville 60 Comment
  HSC57311  Barbarea verna Terry Griswold, Marvin Butler 1979-7-10 6301 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CAS-BOT-BC145787  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  UC552762  Beckmannia syzigachne Joseph P. Tracy 1935-5-25 13848 Humboldt Fort Seward 106 Comment
  HSC82029  Bellardia trixago Thomas W. Nelson, Jane P. Nelson 1980-5-25 5344 Humboldt Along Alderpoint-Blocksburg Rd., just SE of bridge over N Dobbyn Creek 152 Comment
  UC581761  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 mi upstream from mouth Bear River 152 Comment
  CAS-BOT-BC48155  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp in moist ground around meadow. 1402 Comment
  UC1046538  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt Snow Camp Bald Mountain Ridge (ridge between Mad River and Redwood Creek, Bald Mountain Ridge); Bald Mountain ridge, btw Mad River and Redwood Creek 1432 Comment
  UC1198850  Bensoniella oregona Mrs. R. D. Douglas 1920-6-26 Humboldt Murphy Meadow; on Bald Mt., Murphy Meadow 1066 Comment
  UC902073  Bensoniella oregona Joseph P. Tracy 1949-8-11 18454 Humboldt Snow Camp 1432 Comment
  CAS-BOT-BC128917  Berberis aquifolium John Thomas Howell 1949-6-13 910 Humboldt Along trail between Le Perron Flat & Whitey's Peak (east of town of Orleans). 1371 Comment
  HSC74672  Berberis aquifolium Gail Newton 1981-5-16 2172 Humboldt Near Bug Creek. 1228 Comment
  UC9759  Berberis aquifolium Harley P. Chandler 1901-1 1277 Humboldt Hupa Indian Reservation 1097 Comment
  HSC27892  Berberis nervosa Clifton Raymond Chesbrough 1973-6-19 66 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  CAS-BOT-BC412989  Bistorta bistortoides Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Comment
  SBBG25588  Blechnum spicant E. R. Blakley 1966-8-17 6792 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 64 Comment
  SD112347  Blechnum spicant Darley F. Howe 1961-8-1 3109 Humboldt Three mi. N of Arcata on Hwy. 101. Comment
  JEPS97812  Blechnum spicant unknown 1922-1 Humboldt LBJ Grove along Redwood Creek path, Redwoods National Park Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  RSA182046  Boisduvalia stricta Joseph P. Tracy 1916-6-19 4728 Humboldt Northern coast ranges: Forks of Dobbyn Creek 183 Comment
  CAS-BOT-BC31367  Bolboschoenus maritimus Carl B. Wolf 1927-8-28 1180 Humboldt Salt Marsh bordering Eureka Bay, on road to Arcata. Comment
  HSC74350  Boschniakia strobilacea Gail Newton 1980-6-17 221 Humboldt Near Onion Mtn. 1341 Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  UC11310  Boykinia occidentalis H. N. Bolander June 1867 6529 Humboldt Comment
  HSC23805  Brassica nigra R. A. Vanbianchi 1971-9-10 78 Humboldt Junction of Fieldbrook Rd. and old Hwy. 299 Comment
  CAS-BOT-BC106293  Brickellia californica J. Clausen 1932-9-19 696 Humboldt Dyerville, Eel River, in dry river bed. Comment
  JEPS18619  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork Eel River, Richardson Grove Comment
Read comments
Feb 5 2011
  UC620700  Brickellia californica S. K. Harris, Mrs. C. M. Wilder 1938-9-8 Humboldt below Blue Slide (bars on Van Duzen River); Van Duzen River Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  SEINET4183111 Image available Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton 30 Comment
  HSC81655  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1980-7-13 6058 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  JEPS7737  Brodiaea elegans subsp. elegans Lincoln Constance 1934-5-24 647 Humboldt South Fork Eel River Bull Creek Region, South Fork Eel River 121 Comment
  SBBG10871  Brodiaea elegans subsp. elegans D. E. Breedlove 1961-7-4 650 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  UCSB19699  Brodiaea elegans subsp. elegans Myrick, Donald 1964-7-26 Humboldt State Highway 299, 15 mi E of Arcata 762 Comment
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Feb 16 2009
  UC1197746  Brodiaea elegans subsp. elegans J. P. Tracy 1906-7-4 2529 Humboldt near Hydesville (gravel bars on creek); Yager Creek 91 Comment
  SEINET12053853  Brodiaea stellaris J. P. Tracy 1950-1 18903 Humboldt McClellen Mt., just E of McClellen Rock, Burr Valley 762 Comment
  UC1145184  Bromus carinatus var. carinatus Joseph P. Tracy 1937-6-17 15334 Humboldt at Eureka Eureka 15 Comment
  UCD59150  Bromus carinatus var. marginatus A. H. Murphy 1951-5-18 s.n. Humboldt 1.5 mi. south of Petrolia on county road. West side of Mattole River near bridge. Comment
  CAS-BOT-BC155847  Bromus catharticus var. elatus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  UC552679  Bromus commutatus Joseph P. Tracy 1935-5-25 13873 Humboldt Fort Seward 106 Comment
  HSC102647  Bromus diandrus J. P. Smith 2009-5-31 12608 Humboldt Bald Hills Road. 713 Comment
  CAS-BOT-BC155426  Bromus hordeaceus Doris K Niles 1950-6-1 6 Humboldt Island in Eel River, Niles Field. Comment
  UCD58714  Bromus hordeaceus A. H. Murphy 1951-6-1 53 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. 853 Comment
  SEINET11682985  Bromus hordeaceus K. S. Erdman 1970-1 4784 Humboldt Doleson Hill Prairie, Bald Hills Rd SE of Orick Comment
  HSC26618  Bromus laevipes J. P. Smith, Steve Selva 1970-6-14 3846 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  HSC9332  Bromus madritensis subsp. rubens C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 43 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  SEINET202034 Image available Bromus orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt Grouse Mtn. on Friday Ridge, at Friday's Camp 1219 Comment
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  UC1131268  Bromus tectorum H. S. Yates 1936-6-19 5715 Humboldt near Burr Valley 914 Comment
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Apr 6 2017
  HSC72678  Bromus vulgaris J. P. Smith 1977-7-3 9242 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  POM277333  Bromus vulgaris Lyman Benson 1928-7-8 258 Humboldt Weott Ranger Station; Seaword N Coast Mt. Range; S. Fork Eel River. 61 Comment
  UC1131315  Bromus vulgaris H. S. Yates 1936-6-23 5872 Humboldt 3 mi se of Scotia Comment
  HSC40044  Cacaliopsis nardosmia Thomas W. Nelson, Jane P. Nelson 1976-7-1 2897 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC1191446  Cakile edentula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1337 Humboldt e shore of Stone Lagoon Stone Lagoon Comment
  UC37779  Calamagrostis foliosa H. N. Bolander 1866-6 6470 Humboldt Mattole District; bluffs along seashore; Mattole District, Humboldt Co. Comment
  HSC76546  Calamagrostis koelerioides Teresa Prendusi 1981-7-21 282 Humboldt Near Whiteys Peak 1646 Comment
  CAS-BOT-BC185182  Calamagrostis nutkaensis David D. Keck 1948-7-1 5976 Humboldt Northeast end of Big Lagood. Comment
  JEPS71173  Calamagrostis nutkaensis W. L. Jepson 1936-8-18 17943 Humboldt Wildcat Ridge Comment
  HSC64325  Calandrinia ciliata J. P. Smith 1970-6-7 3802 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC17625  Calandrinia ciliata Francis Winter 1960-5-7 Humboldt French Camp Ridge, 3 mi. W of Burnt Ranch 671 Comment
  UC183600  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-4-13 4038 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay Region (on Arcata road) 0 Comment
  HSC12695  Callitriche stagnalis Jana Kattenhorn 1970-10-28 156 Humboldt Mad River at mouth of Lindsey Creek, North Bank Rd. off Hwy. 299, along Mad River Comment
  RSA46654  Calocedrus decurrens Doris K. Kildale 1937-9-14 15359 Humboldt Grouse Mountain Comment
  HSC74349  Calochortus tolmiei Gail Newton 1980-6-28 748 Humboldt Near Mad River Butte. 1536 Comment
  JEPS17823  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Philipsville Phillipsville 121 Comment
  CAS-BOT-BC494368  Calochortus tolmiei M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles n. of Garberville Comment
  HSC45281  Calochortus tolmiei Clifton Raymond Chesbrough 1971-7-19 57 Humboldt 1.0 mi. N of Trinidad near ocean Comment
  UC1222580  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 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
  UC1222959  Calycadenia truncata Joseph P. Tracy 1941-9-1 17009 Humboldt near Don Juan Point (along Trinity River); Trinity River 335 Comment
  UC175973  Calycadenia truncata Joseph P. Tracy 1908-7-1 2761 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 914 Comment
  RSA54132  Calycadenia truncata subsp. scabrella H. M. Pollard 1946-8-31 s.n. Humboldt Orleans to Somes Bar Comment
  HSC49391  Calypso bulbosa R. York 1979-4-21 246 Humboldt Behind the town of Korbel Comment
  UC275535  Calypso bulbosa Joseph P. Tracy 1924-3-30 6631 Humboldt near Bridgeville (Northern Coast Ranges); Northern Coast Ranges 182 Comment
  UC1196475  Calypso bulbosa Arthur E. Connick 1928-4-15 Humboldt Prairie Creek 91 Comment
  UCD138889  Calypso bulbosa var. occidentalis R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC44594  Calyptridium monospermum Brad Klipfel 1973-7-15 190 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC54669  Calyptridium monospermum Overton, Butler 1979-7-25 9906 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC98672  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-10 868 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from intersection with Forest Service Road 4N09. 1302 Comment
  UC175713  Calystegia purpurata Joseph P. Tracy 1912-7-26 3859 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  HSC33749  Calystegia soldanella A. M. Montalvo 1975-5-24 287 Humboldt Off Samoa Blvd., across from the boat landing Comment
  SEINET3991735  Camassia quamash Unknown 1910-5-15 Humboldt Immediate vicinity of Eureka. 152 Comment
  UC1197666  Camassia quamash Joseph P. Tracy 1912-6-30 3717 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC421786  Camassia quamash P. E. Goddard 1906-6 691 Humboldt Lasseck Peak Comment
  UC1046537  Camassia quamash R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt Ridge between Mad River and Redwood Creek (Bald Mountain, at Snow Camp); Bald Mountain, Snow Camp 1432 Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC33753  Camissonia cheiranthifolia A. Montalvo 1975-5-24 267 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC160242  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  SEINET10462961  Campanula prenanthoides Philip A. Munz 1936-8-10 Munz 14338 Humboldt Dry roadside, Lottle Van Duzen River, 15 miles east of Bridgeville Comment
  SEINET10463344  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt HOOPA VALLEY Comment
  UC583020  Campanula prenanthoides P. A. Munz 1936-8-10 14338 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  SEINET10463479  Campanula scouleri Manning MANNING [ 305 ] Humboldt Near Hupa (Bald Hills). 457 Comment
  SEINET10463755  Campanula scouleri Baker 1923-7-20 Baker 52 Humboldt Road from Redwood 61 Comment
  SEINET201622  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt Happy Camp Mountain In Trinity Summit Range NE of Hawkins Bar. 1280 Comment
  UC1199216  Capsella bursa-pastoris Joseph P. Tracy 1940-10-15 16757 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC103887  Cardamine angulata Dana York, Laura Julian, Hilary Sundeen, Jenny Lynn Hutchinson 2014-5-14 3231 Humboldt Redwood State and National Parks; in the Lost Man Creek drainage, along a dirt road, 1.2 air-km E of State Route 101, just above the south bank of Lost Man Creek. 24 Comment
  UC302119  Cardamine angulata Joseph P. Tracy 1926-5-22 7510 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37431  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River near Bridgeville. Comment
  HSC33178  Cardamine californica Thomas W. Nelson 1974-4-20 1184 Humboldt At Elk Head, N of Trinidad Comment
  HSC48991  Cardamine californica M. A. Baker 1979-5-23 758 Humboldt Comment
  HSC6688  Cardamine californica D. E. Anderson 1963-3-23 2398 Humboldt Bald Mtn. Rd. Comment
  SEINET11196228  Cardamine californica L. E. Detling 1935-4-20 1643 Humboldt Redwood Flat, 1 mile N of Dyerville. Comment
  RSA167406  Cardamine californica var. integrifolia Joseph P. Tracy 1950-4-20 18619 Humboldt West slope of Buck Mountain, along highway, about 2 miles S of the Little Van Duzen crossing. Comment
  UC1222655  Cardamine californica var. sinuata Joseph P. Tracy 1950-5-7 18651 Humboldt on the Redwood House Road 1 mi s Redwood House (on Yager Slope, head of South Yager Creek); head of South Yager Creek, on Yager Slope Comment
  HSC104050  Cardamine nuttallii E. R. Fyer 2015-3-19 5 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299. 505 Comment
  UC1199193  Cardamine nuttallii var. covilleana Joseph P. Tracy 1949-6-25 18352 Humboldt near Box Camp (Trinity Summit); , near Box Camp 1524 Comment
  CAS-BOT-BC37895  Cardamine oligosperma Duart V. Brown 1942-5-11 2871 Humboldt Three miles east of East Fork of Willow Creek. Comment
  HSC6640  Cardamine oligosperma John A. Dubois 1962-5-12 4 Humboldt 20 mi. E of Arcata Comment
  UC673286  Cardamine oligosperma Lincoln Constance and Reed C. Rollins 1942-5-11 2871 Humboldt three mi e East Fork Willow Creek; North Coast Ranges, e of East Fork Willow Creek Comment
  RSA442190  Cardamine oligosperma M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale. Comment
  CDA18240  Cardionema ramosissimum G. D. Barbe, T. C. Fuller 1974-6-19 1878 Humboldt North Coast Ranges; Mad River mouth, at end of Iversen Lane, Tyee City. 7 Comment
  HSC39963  Cardionema ramosissimum Linda M. Barker 1976-4-13 1386 Humboldt 3 mi. W of Arcata Comment
  JEPS75414  Carex W. L. Jepson 1932-7-26 16411 Humboldt s bank, Bull Creek Bull Creek 106 Comment
  HSC74695  Carex abrupta Gail Newton 1981-8-7 2462 Humboldt Near Board Camp Mtn. 1478 Comment
  UC249756  Carex aquatilis var. dives Joseph P. Tracy 1924-7-4 6704 Humboldt Snow Camp Northern Coast Ranges, Snow Camp 1371 Comment
  RSA22378  Carex arcta Joseph P. Tracy 1937-8-12 15645 Humboldt Snow Camp Comment
  SEINET7550365 Image available Carex arcta Julia Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie. 1052 Comment
  UC50827  Carex arcta J. P. Tracy 1901-6-30 1195 Humboldt immediate vicinity of Eureka 0 Comment
  UC585638  Carex arcta Joseph P. Tracy 1937-8-12 15645 Humboldt Snow Camp 1402 Comment
  UC79832  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt near Redwood House (on road to head of Yager); Northern Coast Ranges 609 Comment
  HSC44020  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-7-4 3594 Humboldt Beside pond above Alder Springs 1585 Comment
  CAS-BOT-BC19215  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA244324  Carex barbarae Larry E. DeBuhr 1973-4-23 989 Humboldt Richardson Grove Redwood State Park. Comment
  POM289957  Carex bolanderi Lyman Benson 1928-7-11 s.n. Humboldt Weott Ranger Station, S Fork Eel. 61 Comment
  HSC72698  Carex brainerdii Gail Newton 1980-6-24 571 Humboldt Near Ladder Rock 1570 Comment
  UC562712  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw top; Salmon Summit 1767 Comment
  HSC23092  Carex brainerdii D. H. Norris 1971-5-17 19078 Humboldt On trail to King Peak, 1 mi. N of road terminus of Horse Mtn. to King Peak Rd., N of Shelter Cove 1067 Comment
  SEINET3899382  Carex buxbaumii Thomas Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along road 2S08 near Pine Mountain.; 0 1463 Comment
  UC562723  Carex concinnoides Joseph P. Tracy 1927-4-23 7911 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  POM313080  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt Southern outskirts of Eureka Comment
  HSC103366  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7114 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  HSC38078  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC194804  Carex densa Joseph P. Tracy 1913-6-20 4231 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC1152065  Carex densa Joseph P. Tracy 1950-7-6 18987 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  UC1103110  Carex deweyana subsp. leptopoda Joseph P. Tracy 1932-7-17 10677 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  SEINET7708306 Image available Carex feta J. P. Tracy 1950-7-6 19010 Humboldt Albee Road; Buck Mountain, 3 mi S of Burr Valley Comment
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  RSA167280  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 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
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  UC562720  Carex hassei Joseph P. Tracy 1927-6-17 8170 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  UC1103593  Carex hendersonii Joseph P. Tracy 1937-6-20 15348 Humboldt 10 mi upstream mouth of Bear River; Bear River 152 Comment
  CAS-BOT-BC21020  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at south fork of the Eel River. Comment
  SEINET3836749 Image available Carex integra Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on road to head of Yager Comment
  HSC98937  Carex interior Cara Witte 2008-7-30 971 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  CAS-BOT-BC31262  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10554 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  UC249732  Carex lenticularis var. limnophila Joseph P. Tracy 1924-7-13 6719 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC31466  Carex leptopoda Joseph Prince Tracy 1935-6-8 13937 Humboldt Eureka. 60 Comment
  RSA22169  Carex leptopoda Joseph P. Tracy 1937-6-20 15353 Humboldt Bear river, ten miles up stream from the mouth 152 Comment
  HSC76797  Carex leptopoda L. P. Janeway 1982-6-19 11 Humboldt Near creek from Fern Lake behind HSU fieldhouse. 53 Comment
  IRVC1228  Carex leptopoda R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  CAS-BOT-BC31585  Carex luzulina var. luzulina Joseph Prince Tracy 1930-7-16 8987 Humboldt South Fork Mountain, in wet meadow at McKay Camp. 1676 Comment
  HSC71214  Carex lyngbyei Thomas W. Nelson, Doris K. Niles 1979-5-19 4695 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC102622  Carex microptera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1609 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1103090  Carex multicostata Joseph P. Tracy 1935-5-25 13828 Humboldt along head Larrabee Creek; Blocksburg 518 Comment
  CAS-BOT-BC119718  Carex nervina Joseph Prince Tracy 1932-7-16 10627 Humboldt Trinity Summit, Fir woods near Corral Prairie. 1584 Comment
  CAS-BOT-BC119535  Carex nudata Joseph Prince Tracy 1935-7-21 14120 Humboldt Trinity River Valley, at Willow Creek, along river. Comment
  POM126515  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley. 762 Comment
  UC1103606  Carex obnupta J. P. Tracy 1899-5-24 319 Humboldt immediate vicinity Eureka 0 Comment
  RSA22379  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  SEINET3905270  Carex obnupta D. A. Haskell 1966-4-16 2 Humboldt Coastal strand sand dunes near town of Samoa.; 0 Comment
  SEINET3905665  Carex oederi H. E. Parks 1935-1 5214 Humboldt In center of Dry Lagoon, south of Orick.; 0 Comment
  JEPS79854  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC562637  Carex pachystachya Joseph P. Tracy 1936-7-5 15043 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  SEINET10817662  Carex pachystachya Lawrence P. Janeway 1984-6-17 Janeway 847 Humboldt Willow Creek quad (15'). T6N, R4E, NW1/4 of sec. 33. Damp drainage along cutbank of Titlow Hill Rd at turn to Horse Mtn. Serpentine in jeffrey pine forest. 1420 Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. 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
  CAS-BOT-BC118005  Carex rossii Joseph Prince Tracy 1949-5-8 18295 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC1115805  Carex tumulicola Joseph P. Tracy 1939-4-29 16254 Humboldt Orleans 121 Comment
  UC585639  Carex tumulicola Joseph P. Tracy 1937-5-17 15295 Humboldt near Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC115540  Carex unilateralis Joseph Prince Tracy 1930-6-15 8756 Humboldt Bordering a pond, Dobbyn Creek 152 Comment
  JEPS80028  Carex vesicaria var. major Joseph P. Tracy 1914-9-6 4613 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC2871  Carpobrotus chilensis D. B. Mitchell 1965-5-21 71 Humboldt 1/2 mi. N of U.S. Coast Guard Station on Samoa Rd. Comment
  UCD129945  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  HSC98630  Castilleja affinis subsp. affinis Cara Witte 2007-8-1 614 Humboldt Friday Ridge Road (Forest Service Road 6N08); ~ 1/2 mile north of intersection with Forest Service Road 5N39. 1505 Comment
  HSC45088  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 24 Comment
  HSC45089  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 27 Comment
  JEPS93140  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2435 Humboldt n side Wedding Rock (Patrick's Point State Park); Patrick's Point State Park 30 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
  JEPS26223  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1909-9-19 3100 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC255519  Castilleja applegatei var. pinetorum Duart V. Brown 1947-4-2 30 Humboldt Hillside just above river, near Sweed Creek, Trinity River 426 Comment
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC56028  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11570 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  JEPS103937  Castilleja exserta subsp. latifolia T. I. and F. M. Chuang 1991-7-9 7877 Humboldt Samoa Sandune, near Louisiana Pacific Plant. Comment
  JEPS103929  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi SE of junction of rt. 299 and Titlow Hill Rd. on way to Horse Mt. Comment
  UC1502130  Ceanothus R. Sutherland 1978-1-27 1 .27.78 Humboldt sse Nooning Creek (near Mattole River); Garberville Quad., , sse Nooning Creek 286 Comment
  HSC67191  Ceanothus arcuatus Thomas W. Nelson, James Nelson 1980-6-10 5416 Humboldt Along Swayback Ridge Rd. 2.5 mi. N of junction of Rd. 1S07 1463 Comment
  RSA758814  Ceanothus arcuatus D. H. Wilken, E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km southwest of summit of Horse Mountain, west of head of Horse Mountain Creek. 1325 Comment
  HSC78651  Ceanothus cordulatus D. K. Imper 1982-7-13 1485 Humboldt Near Chaparral Mtn. 1386 Comment
  CAS-BOT-BC49316  Ceanothus cuneatus L. B. Kildale 1930-9-21 10229 Humboldt Bluff Creek trail to Fish Lake Comment
  HSC73442  Ceanothus cuneatus Gail Newton 1980-7-11 1311 Humboldt Near Red Mtn. 1341 Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  UC176125  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1913-6-17 4173 Humboldt near summit of Buck Mt. North Coast Ranges 1676 Comment
  POM203240  Ceanothus foliosus M. S. Jussel 1931-5-1 s.n. Humboldt Garberville. Comment
  HSC37599  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 2 .7775 Humboldt Slopes of Eubanks Creek 274 Comment
  SD230281  Ceanothus incanus Louis C. Wheeler 1959-8-1 7620 Humboldt Queens Peak Mine Comment
  RSA95401  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Vicinity of Garberville Comment
  HSC18291  Ceanothus integerrimus L. D. Napier 1962-5-13 4 Humboldt 10 mi W of Junction City near Hwy. 299 457 Comment
  HSC40027  Ceanothus integerrimus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2873 Humboldt At Goat Hill Lookout 1666 Comment
  UC18348  Ceanothus integerrimus Harley P. Chandler 1901-6-1 1338 Humboldt Campbell Creek North Coast Ranges (Hupa Indian Reservation,) 152 Comment
  RSA136480  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt Kneeland Prairie. 762 Comment
  UC1193284  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt w ridge Brushy Mt. (1.5 mi fron ocean.); Quad. 28D2 914 Comment
  UCD112339  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt Ridge west of Brushy Mtn. 1 1/2 miles from the ocean. 914 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
  SBBG68534  Ceanothus parryi L. Rowntree -Jul-1931 Humboldt Ettersburg Comment
  UCR131692  Ceanothus parryi C. B. Wolf 1941-7-27 11086 Humboldt North Coast Range, 5.8 miles west of Maple Creek on road to Freshwater from Korbel 610 Comment
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Mar 29 2012
  HSC43228  Ceanothus pumilus R. Sutherland 1976-4-25 3 .25476 Humboldt 622 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  BLMAR284  Ceanothus thyrsiflorus Jennifer Anthony-Wheeler 1999-5-28 284 Humboldt King range, growing on strawberry Rock grazing allotment 304 Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  UC726578  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Near Big Lagoon Patric Point state Park Comment
  UC726598  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt between Eureka and Fortuna; between Eureka and Fortuna Comment
  CAS-BOT-BC52871  Ceanothus velutinus Carl B. Wolf 1927-8-30 1242 Humboldt Paradise, 5 or 6 mi. n. of Ettersburg Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  JEPS25793  Centaurium muehlenbergii L. R. Heckard 1960-8-23 1211 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  UC203958  Centunculus minimus Joseph P. Tracy 1918-7-5 5019 Humboldt Northern Coast Ranges, White Thorn Valley White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC906720  Centunculus minimus Joseph P. Tracy 1942-6-15 17156 Humboldt Garberville 152 Comment
  HSC31118  Cephalanthera austiniae J. O. Sawyer 1970-6-24 2263 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  RSA46684  Cephalanthera austiniae Doris K. Kildale 1937-7-18 15139 Humboldt Horse Mt. Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. 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
  HSC18557  Cercocarpus montanus var. glaber R. J. Vernimen 1963-4-27 32 Humboldt 9 mi. S of Willow Creek, Grouse Mtn. area Comment
  HSC31980  Chamaecyparis lawsoniana Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC91616  Chamaecyparis lawsoniana Susan H. Bicknell 1987-8-29 Humboldt Patrick's Point State Park, near Penn Creek Comment
  HSC99569  Chamaesyce serpillifolia subsp. serpillifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 234 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC166040  Chamerion angustifolium subsp. circumvagum Peter H. Raven; R. Snow 1958-7-21 13651 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  RSA424563B  Chenopodium botrys T. S. Elias, Barbara A. Elias 1987-8-26 10624 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  POM319267  Chenopodium multifidum Patricia Wilder 1968-8-21 4406 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  JEPS59734  Chenopodium pumilio W. L. Jepson 1932-7-26 16400 a Humboldt Bull Creek 106 Comment
  CAS-BOT-BC451383  Chimaphila menziesii Doris K. Kildale 1925-7-5 1027 Humboldt Willow Creek, Trinity River Valley 152 Comment
  HSC41343  Chimaphila umbellata Brad Klipfel 1974-8-2 503 Humboldt Horse Mtn. Comment
  CDA7411  Chrysanthemum segetum B. F. Kemp 1958-4-11 345 -58 Humboldt South Side Mad River near mouth. 0 Comment
  HSC98791  Chrysolepis chrysophylla var. minor Cara Witte 2007-9-3 639 Humboldt Horse Mountain Botanical Area. Road 6N38. 1 mile east of Horse Mountain Mine. 1259 Comment
  JEPS49670  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1224690  Chrysosplenium glechomifolium D. E. Anderson 1964-4-12 2974 Humboldt small creek leading into Jacoby Creek (on n side of road) Comment
  JEPS12245  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UCD127289  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  HSC24389  Circaea alpina subsp. pacifica J. O. Sawyer 1970-6-24 2254 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC38627  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-18 - 1101 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake 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
  CDA1176  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  CHSC114324  Cirsium douglasii B. Villegas 1998-8-5 Humboldt Nr. Berry Summit on Titlow Hill Rd., 4.8 mi. S of Hwy 299. Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 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
  UC204832  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC302287  Cirsium occidentale var. venustum Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 914 Comment
  UC582536  Cirsium remotifolium H. E. Parks and Joseph P. Tracy 1934-7-13 13383 Humboldt vicinity of Trinidad; Northern Coast Region 60 Comment
  RSA18145  Cirsium vulgare C. B. Wolf 1927-8-22 803 Humboldt Big Lagoon. Comment
  RSA297180  Cirsium vulgare Lincoln Constance 1934-6-11 853 Humboldt South Fork Eel River; Lower Look Prairie and Bull Creek Road to Dyerville Comment
  SDSU8657  Clarkia amoena Harvey 1939-7-16 2429 Humboldt US 101 Comment
  UC1222854  Clarkia amoena Joseph P. Tracy 1951-6-30 19601 Humboldt Trinity Highway, at Berry's North Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC160969  Clarkia amoena subsp. amoena P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 mi. east of Bridgeville Comment
  POM301289  Clarkia amoena subsp. amoena Joseph P. Tracy 1945-7-4 17511 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC20317  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  LA206050  Clarkia concinna H. Lewis; M. Lewis 1947-6-13 419 Humboldt Hwy 36, 1.9 mi W of Van Duzen River Bridge Comment
  UC594154  Clarkia concinna subsp. concinna S. K. Harris, J. P. Tracy 1936-6-10 3265 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  CHSC52939  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca 1/4 mile north of the boat ramp. 3 Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  HSC89901  Clarkia davyi Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, end of the Fernstrom-Root trail Comment
  UC902179  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET200783  Clarkia gracilis subsp. tracyi Joseph P. Tracy 1931-6-28 9597 Humboldt Buck Mountian, lower foothills of its northwest slope. 762 Comment
  UC198877  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew July 1888 Humboldt Campbell's Comment
  CAS-BOT-BC172394  Clarkia purpurea subsp. viminea Henry M. Pollard 1948-7-19 s.n. Humboldt Near Orleans Comment
  SEINET10492532  Clarkia rhomboidea Lincoln Constance 1934-6-15 Constance 880 Humboldt Summit of Grasshopper Peak, South Fork EeL River, Bull Creek Region. 3200 feet. 975 Comment
  CAS-BOT-BC439123  Claytonia exigua subsp. exigua Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC74338  Claytonia parviflora subsp. parviflora M. A. Baker 1980-5-18 1282 Humboldt Near Black Mtn. 1006 Comment
  HSC40905  Claytonia perfoliata subsp. intermontana J. O. Sawyer 1970-4-24 2191 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  HSC95726  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-3-17 2 Humboldt S Fork Rd. from Hwy. 299 to Co. Rd. 341, along river access trail at end of road Comment
  UC161027  Claytonia rubra subsp. depressa Joseph P. Tracy 1910-4-24 3129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  HSC100606  Claytonia sibirica Carl C. Marshall Mar 1886 150 Humboldt Everywhere. Comment
  HSC76598  Claytonia sibirica Teresa Prendusi 1981-7-24 474 Humboldt Near Whiteys Peak 1585 Comment
  JEPS109414  Claytonia sibirica D. W. Taylor 2004-6-24 19140 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along logging spur road arterial to Forest Road 5N81. Comment
  SEINET190447  Claytonia sibirica J. P. Tracy 1932-7-14 10536 Humboldt Trinity Summit Corral Prairie 1585 Comment
  UC162973  Claytonia sibirica Joseph P. Tracy 1911-6-4 3212 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  HSC98695  Claytonia sibirica C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  JEPS43340  Claytonia sibirica W. L. Jepson 1932-7-26 16416 Humboldt lower Bull Creek Flat 106 Comment
  SD90249  Claytonia sibirica Benjamin C. Stone 1952-6-19 112 Humboldt Humboldt Redwoods State Park; by Founders' Tree 152 Comment
  HSC78577  Claytonia washingtoniana C. E. Fellows 1970-4-18 258 Humboldt NE end of Big Lagoon, E side of Hwy. 101 Comment
  HSC18085  Clematis lasiantha Doris K. Kildale 1925-7-5 1000 Humboldt Willow Creek Flat Comment
  HSC14390  Clinopodium douglasii S. V. Thompson 1967-7-24 21 Humboldt Back from beach Comment
  JEPS61603  Clintonia andrewsiana W. L. Jepson 1932-8-9 16540 Humboldt Bull Creek 106 Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  SEINET12051465  Clintonia andrewsiana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -287 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  CAS-BOT-BC499962  Clintonia uniflora Doris K. Kildale 1926-6-9 2135 Humboldt Horse Mountain 1219 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC169092  Collinsia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5673 Humboldt ridge w Hoopa Valley (Hoopa Mt summit); Hoopa Mtn, North Coast Ranges Comment
  UC1222824  Collinsia heterophylla Joseph P. Tracy 1950-6-15 18812 Humboldt at Huestis Rock on ne side of Ridge (Mail Ridge Trip) Huestis Rock 822 Comment
  JEPS13757  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Horse Mtn 762 Comment
  HSC70387  Collinsia parviflora M. A. Baker 1980-6-8 1887 Humboldt Near Buck Flat. 1554 Comment
  HSC74348  Collinsia parviflora Gail Newton 1980-6-28 744 Humboldt Near Mad River Butte. 1536 Comment
  HSC31203  Collinsia rattanii D. E. Anderson 1972-6-20 5744 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1197852  Collomia grandiflora Joseph P. Tracy 1947-7-9 17829 Humboldt lower slopes Horse Mountain 1127 Comment
  HSC60033  Collomia heterophylla M. A. Baker 1978-5-6 477 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  UC1197847  Collomia heterophylla Joseph P. Tracy 1908-6 2702 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  UC1197848  Collomia heterophylla Joseph P. Tracy 1914-5-14 4461 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC133646  Collomia heterophylla Joseph P. Tracy 1909-7-31 3044 Humboldt in woods on hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC73732  Collomia tracyi M. A. Baker 1980-7-19 3001 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC180241  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 1867 Humboldt Willow Brook, rocky terrace on Trinity River 152 Comment
  RSA46800  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 2024 Humboldt Willow Creek. Comment
  HSC28189  Convolvulus arvensis Richard Curtis 1973-9-28 25 Humboldt Along R. R. track near mouth of Nanning Cr. Comment
  RSA696831  Conyza canadensis J. Russell Bruff 1937-8-17 939 Humboldt Richardson Grove, bed of Eel River. Comment
  RSA30377  Coptis laciniata Lincoln Constance, R. C. Rollins 1942-5-11 2868 Humboldt 3 miles W of E Fork of Willow Creek, Comment
  HSC39077  Corallorhiza maculata J. D. Ackerman 1976-7-3 765 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  HSC76613  Corallorhiza maculata Teresa Prendusi 1981-6-9 185 Humboldt Near Cedar Camp 1268 Comment
  UC1225828  Corallorhiza maculata Joseph P. Tracy 1948-8-15 18150 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC100583  Corallorhiza multiflora Carl C. Marshall 297 Humboldt Coyote Camp. Comment
  HSC95574  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-7-19 177 Humboldt Arcata Marsh at end of I St. 0 Comment
  JEPS70115  Cordylanthus maritimus subsp. palustris L. R. Heckard 1972-8-9 3152 Humboldt Margin of Humboldt Bay 2 mi s of Arcata; Humboldt Bay Comment
  SEINET8733340 Image available Cordylanthus viscidus Joseph P. Tracy 1947-1 17884 Humboldt one mile west of Mud Springs, in serpentine formation 1158 Comment
  JEPS15869  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  HSC38082  Cornus nuttallii Thomas W. Nelson, James Nelson 1976-5-30 2625 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC99428  Cornus sericea subsp. sericea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 77 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC26855  Coronopus didymus Thomas W. Nelson 1971-12-5 315 Humboldt 3300 block of D St. in Eureka Comment
  OBI20563  Corylus cornuta subsp. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Along Hookton Rd Comment
  UCR32167  Corylus cornuta var. californica David J. Keil 1983-7-2 17312 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UCR3511  Corylus cornuta var. californica David Whistler, H. M. Whistler 1964-7-29 640729- 6 Humboldt North Coast, US Hwy 101, along bank of Eel River, 0.2 mi. north of Weott 85 Comment
  HSC98468  Cotoneaster simonsii Peter Zika 2007-7-19 23174 Humboldt Hookton Rd., S end of Humboldt Bay 10 Comment
  CHSC97985  Cotula coronopifolia C. DeLay 2002-5-11 12 Humboldt V St. Humboldt Bay Wildlife Refuge. 5 Comment
  UC1223033  Cotula coronopifolia Joseph P. Tracy 1948-5-31 17986 Humboldt Robertson's Sheep Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  JEPS49998  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC249631  Crassula aquatica Joseph P. Tracy 1921-4-24 5446 Humboldt S. Fork Eel R., Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  RSA125671  Crataegus suksdorfii E. K. Balls 1957-5-25 22602 Humboldt Hwy 36, Van Duzen River, W of Trinity Humboldt County Line. 732 Comment
  CAS-BOT-BC291485  Crepis capillaris Carl B. Wolf 1927-8-28 1188 Humboldt Salt Marsh Eureka Bay on road to Arcata Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  RSA201792  Crocidium multicaule Roman Gankin, W. R. Hildreth 1966-3-15 700 Humboldt On serpentine slopes of Klamath River canyon, State Highway 96, 4.6 miles north of Hoopa. Comment
  SEINET5261839  Crocosmia X crocosmiiflora Unknown 2002-8-22 86 Humboldt On Fischer Road just N of the Mad River. Comment
  SEINET3875024  Crocosmia aurea Bennett, Dunn; Dziekanowski 1976-8-6 477 Humboldt Collected by Highway 101, North side of Orick.; 0 30 Comment
  HSC40818  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2851 Humboldt Along road to Goat Hill at spring. 1646 Comment
  HSC99568  Cryptantha affinis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 233 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
  HSC39787  Cryptantha leiocarpa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC199009  Cryptantha leiocarpa Joseph P. Tracy 1906-5-13 2457 Humboldt Humboldt Bay Comment
  UC71489  Cryptogramma acrostichoides Joseph Burtt Davy and W. C. Blasdale 1899-6-21 5844 Humboldt Trinity Summit Comment
  UC1076384  Cupressus lawsoniana H. L. Mason 1932-7-21 7111 Humboldt on road Arcata to Weaverville (e slope of Southfork Mts.); Southfork Mts. Comment
Read comments
Jul 25 2018
  CAS-BOT-BC224392  Cuscuta californica Joseph P. Tracy 1949-8-4 18407 Humboldt Trinity Summit. Mud Springs 1341 Comment
  HSC66829  Cycladenia humilis M. A. Baker 1980-7-24 3197 Humboldt Near Orleans Mtn. 1625 Comment
  UC922013  Cynodon dactylon Joseph P. Tracy 1949-8-18 16427 Humboldt Eureka 15 Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  HSC45506  Cynoglossum grande M. Alcasas 1978-4-7 5 Humboldt Freshwater Rd. cut-out 75 yds. S of junction with Barry Rd. 854 Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  UC1222258  Cynoglossum occidentale Joseph P. Tracy 1949-6-6 18302 Humboldt 6 mi. n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Rd.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  UCD60123  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 miles northwest of Petrolia. 152 Comment
  HSC68940  Cynosurus echinatus Jacqueline Greenleaf 1980-8-12 326 Humboldt Near Pistol Spring. 1082 Comment
  UC1103240  Cynosurus echinatus Joseph P. Tracy 1948-6-13 18047 Humboldt Dobbyn Creek 152 Comment
  RSA54135  Cyperus bipartitus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  SEINET6633542  Cyperus bipartitus Henry M. Pollard 1945-1 s.n. Humboldt Misson creek, Klamath River Canyon Comment
  HSC7210  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake Comment
  UC213007  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  CAS-BOT-BC113831  Cyperus niger var. capitatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC1103636  Cyperus squarrosus Joseph P. Tracy 1921-10-9 5969 Humboldt Mad R. at Blue Lake; Northern Coast Ranges, Mad R. 30 Comment
  HSC74727  Cystopteris fragilis Gail Newton 1981-7-23 2282 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC40373  Cytisus scoparius Linda M. Barker 1976-3-11 1322 Humboldt 3 mi. W of Arcata Comment
  SEINET12152438  Cytisus scoparius J. P. Tracy 1950-1 18830 Humboldt Eureka Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  CAS-BOT-BC189741  Danthonia californica Joseph P. Tracy 1934-7-18 13421 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC71722  Danthonia californica Marc Baker 1980-7-26 2465 Humboldt Near Sims Creek. 610 Comment
  UC1131389  Danthonia californica var. americana H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  RSA421918  Datura stramonium M. B. Dunkle 1936-8-22 4855 Humboldt Williams Grove, Eel River. 213 Comment
  UC154245  Daucus pusillus J. P. Tracy 1900-7-4 887 Humboldt Ocean Beach at Samoa opposite Eureka Comment
  UC1196326  Delphinium Joseph P. Tracy 1946-6-15 17564 Humboldt foothills of Horse Mountain 1066 Comment
  RSA304852  Delphinium decorum subsp. decorum James R. Shevock 1971-5-29 1137 Humboldt Trinity Hwy 299. 244 Comment
  HSC96953  Delphinium decorum subsp. tracyi Ryoko Ito, Shauna McDonald 2007-6-4 1 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299 off NF1 on USFS Rd. 5N27 1390 Comment
  SEINET12099544  Delphinium hesperium J. P. Tracy 1950-1 18875 Humboldt 3 mi N of Blocksburg Comment
  UC552299  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1934-4-8 13174 Humboldt between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  CAS-BOT-BC9959  Delphinium nudicaule Volney Rattan 1879-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC25006  Delphinium nudicaule S. Estes 1964-4-29 12 Humboldt May Ranch, 2 mi. N of Bridgeville 305 Comment
  UC13904  Delphinium trolliifolium W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  UC922025  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp 1402 Comment
  HSC9609  Deschampsia danthonioides H. E. Parks May 1934 5022 Humboldt Big Lagoon Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  CAS-BOT-BC201779  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  CAS-BOT-BC201780  Deschampsia elongata Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans Comment
  HSC97565  Deschampsia elongata Cara Witte 2007-6-7 223 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  HSC31568  Dicentra formosa Glenn McGourty 1974-5-11 38 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC37421  Dicentra formosa Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 514 Humboldt Along Lost Man Creek. 38 Comment
  HSC62875  Dicentra formosa J. M. DiTomaso 1979-4-21 901 Humboldt On Stagecoach Rd. at College Cove parking lot, Trinidad Comment
  HSC8351  Dicentra formosa H. E. Parks, S. T. Parks May 1930 758 Humboldt Along the Van Duzen River Comment
  CAS-BOT-BC402409  Dicentra formosa subsp. formosa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  JEPS91306  Dicentra formosa subsp. formosa Dean W. Taylor 1971-5-2 1065 Humboldt Comment
  SEINET7293093 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1938-1 16172 Humboldt Bald Mountain; at 'Lake Prairie Comment
  UC176624  Dichelostemma X venustum Joseph P. Tracy 1913-6-26 4351 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC3004  Dichelostemma capitatum subsp. capitatum Elrid H. Spinas 1948-5-15 22 Humboldt Horse Mtn. Comment
  HSC79414  Dichelostemma capitatum subsp. capitatum Kenneth Clark 1980-3-1 504 Humboldt Near parking access above Dead Man's Gulch 137 Comment
  HSC98727  Dichelostemma ida-maia Cara Witte 2007-7-20 555 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC30061  Dichelostemma ida-maia Harley P. Chandler May 1901 1254 Humboldt Redwood Belt North Coast Ranges 152 Comment
  SEINET12050367  Dichelostemma ida-maia F. H. Utech 1988-1 88 -277 Humboldt 1.5 mi E of Bridgeville on CA 36, Mile Marker 23.0 150 Comment
  UCSB22162  Dichelostemma ida-maia Keefe, Joseph 1967-7-8 Humboldt Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  HSC45651  Dichelostemma multiflorum Diane L. Reed 1978-5-7 64 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  SD58400  Dichelostemma venustum Milo S. Baker 1923-7-28 138 d Humboldt Locality given as: growing within a few feet of Brodiaea Collector's #137.; not in our database at present 3/19/08; ?Baker Collector's #137 in our collection. Comment
  HSC26885  Digitaria sanguinalis Brad Klipfel 1973-7-24 222 Humboldt Mad River flood plain, N end of Carson RR Bridge. Comment
  SEINET200657 Image available Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UCR179281  Disporum smithii R. G. Swinney 1968-3-28 234 Humboldt East of Humboldt State College, Arcata 152 Comment
  JEPS61828  Disporum smithii Lincoln Constance 1934-5-31 753 Humboldt South Fork Eel River, along n side of Bull Creek, from w boundary of Park to Grasshopper Peak (Squaw Creek) Road, Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  UC203975  Dodecatheon hendersonii Joseph P. Tracy 1918-5-28 4947 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC249505  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC28972  Downingia elegans Chesnut and Drew Aug 1888 Humboldt Comment
  POM175550  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt About 6 miles N of Garbersville. Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  CAS-BOT-BC159613  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1929-5-26 9136 Humboldt Klamath River at Orleans 152 Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  UC1239775  Dryopteris expansa Joseph P. Tracy 1931-3-15 9286 Humboldt on Van Duzen River Strong's Station; Northern Coast Ranges 91 Comment
  UCSB30620  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  UC1103265  Echinochloa crus-galli Joseph P. Tracy 1932-10-2 10860 Humboldt Redwood Creek near Bair's Redwood Creek; Northern Coast Range, Redwood Creek 213 Comment
  CAS-BOT-BC113643  Eleocharis acicularis Doris K. Kildale 1928-7-29 5932 Humboldt Kinman Pond, Bear River Ridge. Comment
  UC1103668  Eleocharis bella Joseph P. Tracy 1927-8-7 8313 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  CHSC68427  Eleocharis macrostachya L. P. Janeway 1983-9-24 701 Humboldt 10-30 ft from water line of Big Lagoon, near southwest corner of the county campground. 3 Comment
  UC183687  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 mi NW of jct. of Willow Creek with Trinity River, at the meadows on mountain side Northern Coast Ranges 914 Comment
  UC1103667  Eleocharis pachycarpa Joseph P. Tracy 1931-6-7 9560 Humboldt Trinidad 60 Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  HSC10946  Elymus elymoides var. elymoides J. P. Tracy 1933-7-25 12889 Humboldt Grouse Mtn. 1524 Comment
  HSC9713  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hwy. 96, 1.9 miles N of Willow Creek. Comment
  RSA129272  Elymus glaucus H. S. Yates 1936-6-17 5695 Humboldt Lower N.W. slope of Buck Mt.; South Fk. Pk. 793 Comment
  UC38194  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5661 a Humboldt Hoopa Mt. Comment
  UC552765  Elymus glaucus H. E. Parks and Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  UCD62280  Elymus glaucus R. Tofsrud 1947-6-29 194 Humboldt About 3 mi. N of Harris on road to Alder Point. Comment
  CAS-BOT-BC203481  Elymus glaucus subsp. glaucus Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC9747  Elymus glaucus subsp. virescens J. P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Comment
  HSC97932  Elymus multisetus Cara Witte 2007-6-14 271 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  RSA129486  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  RSA10129  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek. 762 Comment
  UC1103470  Elytrigia repens Joseph P. Tracy 1940-10-5 16751 Humboldt Trinidad; foot of coast bluff 6 Comment
  CAS-BOT-BC392224  Enemion stipitatum Joseph P. Tracy 1939-4-2 16207 Humboldt Kneeland Prairie 762 Comment
  SD90214  Epilobium angustifolium Benjamin C. Stone Jun 1952 129 Humboldt 20 miles south of Klamath. 14 Comment
  HSC32528  Epilobium brachycarpum Thomas W. Nelson, Jane P. Nelson 1973-9-3 1136 Humboldt Just E of Dinsmore beside Hwy. 36 Comment
  UC668304  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  HSC79497  Epilobium ciliatum subsp. ciliatum Kenneth Clark 1979-6-30 453 Humboldt Dead Man's Gulch 8 Comment
  POM271563  Epilobium ciliatum subsp. ciliatum Lyman Benson 1928-7-12 467 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  POM32458  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt North Coast Ranges: South Fork of Eel River 4 miles above the mouth 61 Comment
  HSC76625  Epilobium ciliatum subsp. glandulosum Teresa Prendusi 1981-7-24 481 Humboldt Near Whiteys Peak 1585 Comment
  HSC95397  Epilobium ciliatum subsp. watsonii Andrea Pickart 2002-7-9 171 Humboldt Bracut Marsh 0 Comment
  JEPS31491  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt near Ranger Station (along streamlet); Trinity Summit 1828 Comment
  HSC72699  Epilobium minutum Gail Newton 1980-6-24 582 Humboldt Near Ladder Rock 1570 Comment
  HSC76622  Epilobium minutum Denis Kearns 1981-7-22 322 Humboldt Near Whiteys Peak. 1487 Comment
  SEINET10632323  Epilobium oreganum Jane P. Nelson, Thomas W. Nelson 1975-7-20 Nelson 2053 Humboldt T2S, RSE, Sec 13; wet boggy serpentine soil under Jeffrey pine forest beside Rd 2508 to Pine Mtn. Comment
  HSC16559  Epilobium septentrionale C. B. Wolf 1927-8-30 1234 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  HSC46090  Equisetum arvense J. P. Smith 1971-10-9 5014 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC549763  Equisetum hyemale subsp. affine Joseph P. Tracy 1933-6-6 12506 Humboldt Trinidad; Northern Coast Region 60 Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  HSC12909  Equisetum telmateia subsp. braunii Steve Dorei 1970-10-16 73 Humboldt HSC campus, behind Johnson House Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  CAS-BOT-BC284095  Eragrostis pectinacea var. pectinacea Peter Rubtzoff 1968-9-4 5958 Humboldt Goulds Bar, South Fork Eel River southeast of Weott Comment
  HSC5493  Erechtites glomeratus J. W. Johnson 1962-4-18 1261 Humboldt Arcata; N of the Hunt and Bull Farms, Samoa Peninsula Comment
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  CAS-BOT-BC299908  Erechtites minimus A. A. Heller 1923-7-8 13766 Humboldt State redwood camp 10 miles south of Dyerville Comment
  HSC5494  Erechtites minimus H. E. Parks Sep 1931 1058 Humboldt Trinidad 76 Comment
  POM356838  Erechtites minimus B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UC1198999  Eremocarpus setiger Joseph P. Tracy 1911-7-8 3452 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  CAS-BOT-BC174278  Eremogone congesta var. suffrutescens Doris K. Kildale 1925-8-17 1243 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  CAS-BOT-BC293486  Erigeron aliceae L. B. Kildale 1930-8-10 10529 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC98529  Erigeron aliceae Cara Witte 2007-6-13 265 Humboldt Along Forest Service Rd. 5N04. Near Grouse Mountain 1538 Comment
  HSC75411  Erigeron foliosus var. confinis J. O. Sawyer, M. A. Ericksen 1980-7-7 3573 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  CAS-BOT-BC296106  Erigeron foliosus var. confinis Lincoln Constance; Reed C. Rollins 1942-5-12 2896 Humboldt Junction of Klamath and Salmon Rivers 1 mile south of Somes BAr 152 Comment
  SEINET11859406  Erigeron foliosus var. confinis J. P. Tracy 1947-7-5 17785 Humboldt Trinity Summit, ridge top 1 mi W of Mud Springs Comment
  HSC39954  Erigeron glaucus Linda M. Barker 1976-6-22 1616 Humboldt 3 mi. W of Arcata Comment
  POM261503  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head Comment
  UC726579  Erigeron glaucus A. A. Heller 1937-6-12 15915 Humboldt on the coast near the Whaling Station (Trinidad, foot of the grade leading up to the lighthouse on Trinidad Head.); Trinidad Head., Trinidad Comment
  RSA54145  Erigeron inornatus var. inornatus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  UC1199405  Erigeron klamathensis Joseph P. Tracy 1935-7-26 14271 Humboldt Water Dog Lakes Trinity Summit, Water Dog Lakes 1828 Comment
  HSC66280  Erigeron maniopotamicus M. A. Baker 1980-6-28 2479 Humboldt Near Mad River Buttes 1445 Comment
  JEPS109871  Erigeron maniopotamicus Dean W. Taylor 2007-7-11 20158 Humboldt 1.1 air miles NW of Board Camp Mountain, headwaters Boulder Creek, along Forest Road 4N38 1371 Comment
  CAS-BOT-BC224254  Eriodictyon californicum L. R. Abrams 1918-6-17 7208 Humboldt Hoopa to Briars Resort on road to Korbel Comment
  CAS-BOT-BC259180  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  RSA264513  Eriogonum latifolium H. E. Parks 1941-08 24198 Humboldt Little River Comment
  UC418996  Eriogonum latifolium H. E. Parks 1924-8-5 2454 Humboldt sand dunes, Little River lagoon Little River lagoon Comment
  POM319175  Eriogonum latifolium Patricia Wilder 1968-8-21 4400 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa. Humboldt Bay drainage area. 8 Comment
  UC1222341  Eriogonum latifolium Joseph P. Tracy June 1950 18754 Humboldt near ocean shore (s of point of Cape; Devil's Gate); Cape Mendocino, Devil's Gate 3 Comment
  UC179958  Eriogonum latifolium Joseph P. Tracy 1914-8-30 4597 Humboldt Ocean Beach at Humboldt Bay Humboldt Bay Comment
  CAS-BOT-BC259543  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-1-1 s.n. Humboldt Orleans Comment
  UC144102  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1909-8-1 3058 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA393303  Eriogonum nudum var. pubiflorum H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  JEPS56214  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1935-7-28 14328 Humboldt Head of Devil's Hole Trinity Summit Comment
  HSC55026  Eriogonum umbellatum var. stellatum Overton, Butler 1979-7-31 11448 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC98924  Eriophorum crinigerum Cara Witte 2007-5-24 116 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1284 Comment
  HSC5592  Eriophyllum lanatum D. E. Anderson 1963-3-16 2384 Humboldt Scotia Bluffs Comment
  SEINET4208670  Eriophyllum lanatum var. achilleoides Thomas Nelson, Jane Nelson; James Nelson 1975-7-15 2028 Humboldt Growing on serpentine outcrop at French Camp, Bald Hills.; 0 Comment
  UC1223126  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1944-7-3 17480 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC41264  Eriophyllum lanatum var. lanceolatum Brad Klipfel 1974-7-23 457 Humboldt Horse Mtn. Comment
  HSC78919  Eriophyllum lanatum var. lanceolatum T. Jimerson, D. K. Imper 1982-5-17 1438 Humboldt Near Ashfield Ridge. 822 Comment
  HSC53822  Erysimum capitatum var. capitatum Terry Griswold, Marvin Butler 1979-7-10 6266 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC57949  Erysimum capitatum var. capitatum G. L. Clifton, Terry Griswold 1979-7-31 11627 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC6761  Erysimum capitatum var. capitatum P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC76222  Erysimum capitatum var. capitatum Walter Overton, Marvin Butler 1979-7-24 9764 Humboldt Near Black Rock, close to the town of Willow Creek 1554 Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  HSC47486  Erysimum menziesii Sheila Logan 1978-4-7 4 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  SEINET8229973  Erythranthe nasuta Joseph P. Tracy 1920-5-18 5379 Humboldt South Fork Eel River; from South Fork to Scotia; 4 miles above Dyerville. 61 Comment
  CAS-BOT-BC133258  Erythronium L. R. Abrams 1918-6-15 7099 Humboldt Brannan Mt near Willow Creek 1371 Comment
  SDSU19195  Erythronium californicum Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3005 Humboldt Six Rivers National Forest. Adjacent to Titlow Hill Road, ca. 4.6 miles south of junction with Hwy 299 (at Berry Summit), southeast of intersection with dirt road to Horse Mtn. Ca. 0.6 mile south of Horse Mtn. Radio Tower. 1437 Comment
  UC249502  Erythronium californicum Joseph P. Tracy 1922-4-30 6037 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 609 Comment
  HSC102051  Erythronium grandiflorum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 955 Humboldt Patterson Meadows 1555 Comment
  HSC38788  Erythronium grandiflorum subsp. grandiflorum J. P. Smith 1976-5-30 8825 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  RSA256579  Erythronium oregonum J. D. Ackerman 1975-5-3 437 Humboldt Ca. 3.5 miles east of Chezem Road and Highway 299 intersection west of Redwood Creek Comment
  HSC41249  Erythronium oregonum subsp. leucandrum Brad Klipfel 1974-5-27 396 Humboldt Horse Mtn. Comment
  POM169641  Erythronium revolutum H. P. Chandler 1901-06 1279 Humboldt Hupa Indian Reservation Comment
  UC1541242  Eschscholzia californica W. K. Parks July 1933 1398 Humboldt South Fork Mountain Comment
  HSC16757  Eschscholzia californica Francis Winter 1960-5-7 Humboldt 1 1/2 mi. S of Redwood Creek Ranch Comment
  POM160277  Eschscholzia californica var. crocea Joseph P. Tracy 1926-5-15 7485 Humboldt Kneeland Prairie, North Coast Ranges 762 Comment
  OBI69924  Eucalyptus globulus Jenn Yost, Matt Ritter 2008-4-1 40 Humboldt 36W 6.5 mi east of 101, in a drive way with 1 juvenile Comment
  HSC58818  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12103 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC58819  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12127 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SEINET10971171  Eupatorium occidentale Mary Susan Taylor 1980-6-11 Taylor 2844 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  CDA4817  Euphorbia helioscopia W. Simas 1962-12-4 Humboldt Fisher property, Island School Road, Ferndale. 0 Comment
  HSC36229  Euphorbia helioscopia John Rehling 1975-5-5 57 Humboldt HSU campus Comment
  HSC12567  Euphorbia peplus D. La Conte 1970-6-15 6 Humboldt Comment
  UC198735  Euphorbia spathulata Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC1198980  Euphorbia spathulata Joseph P. Tracy 1927-5-8 7977 Humboldt Phillipsville Northern Coast Ranges, South Fork of Eel River (slopes and groves facing South Fork of Eel River) 121 Comment
  UC302983  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC502956  Euphorbia spathulata Joseph P. Tracy 1929-5-5 8578 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River (slopes and groves along South Fork of Eel River) 121 Comment
  UC1223175  Euthamia occidentalis Joseph P. Tracy 1949-9-1 18538 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS32360  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt opposite mouth of, at Lack Pond, (in Trinity R. Valley opp. mouth of Willow Cr.) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  UC1607839  Festuca Joseph P. Tracy and Harold E. Parks 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  HSC73806  Festuca arundinacea M. A. Baker 1980-6-16 1938 Humboldt Near Monks Camp. 1097 Comment
  HSC40335  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt W of Alder Springs along FS 2S07 1524 Comment
Read comments
Jul 23 2010
  HSC94183  Festuca californica Ottoson 1999-7-13 Humboldt Above Showers Pass towards Kneeland from Hwy. 36. Soldiers Grove. Eaton Rough Mtn Area. Comment
  UC70921  Festuca californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC278305  Festuca californica subsp. californica Joseph P. Tracy 1933-6-13 12603 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  UCD65873  Festuca californica subsp. californica R. Tofsrud 1947-7-1 203 Humboldt Between Alder Point and Zinea. Comment
  UCD65870  Festuca californica subsp. californica P. B. Kennedy 1923-8-2 Humboldt Near grade Bluff Creek to Arcata. Comment
  CAS-BOT-BC282500  Festuca elmeri Doris K. Kildale 1928-6-24 5286 Humboldt Horse Mountain 914 Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  POM214838  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UC1103723  Festuca occidentalis Joseph P. Tracy 1937-7-25 15543 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Cree 1371 Comment
  UC1145209  Festuca roemeri Joseph P. Tracy 1950-6-15 18803 Humboldt 7 mi n Harris; Mail Ridge 1036 Comment
  HSC47790  Festuca rubra Michael A. Watkins 1978-6-10 2 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC9975  Festuca rubra R. I. Bonn 1965-5-7 24 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  POM198640  Festuca subulata Joseph P. Tracy 1916-6-25 4745 Humboldt Redwood Creek, at point east from Trinidad. 152 Comment
  UC38427  Festuca subuliflora J. P. Tracy May 1901 1184 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  SEINET200725  Filago gallica J. P. Tracy 1914-5-14 4467 Humboldt Fort Seward 122 Comment
  UC1197363  Foeniculum vulgare Joseph P. Tracy 1930-10-12 9216 Humboldt Eel R. Alton to Fortuna; Eel R. 15 Comment
  UC1198724  Fragaria chiloensis Joseph P. Tracy 1918-5-5 4922 Humboldt Ocean Beach Humboldt Bay Comment
  HSC31119  Fragaria vesca J. O. Sawyer 1970-6-24 2259 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  CAS-BOT-BC437050  Fragaria vesca subsp. bracteata M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale 8 miles norht of Garberville Comment
  BLMAR152  Frangula californica subsp. californica Donald Hazlett 1994-6-7 152 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52730  Frangula californica subsp. californica Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  CAS-BOT-BC52736  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1249 Humboldt At a small creek 3 miles south of Thorn. Comment
  CAS-BOT-BC53404  Frangula californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC96863  Fritillaria affinis Frances Reuss Harmon 2001-3-31 17 Humboldt Grays Falls picnic area, SE edge of open rocky soil Comment
Read comments
Apr 21 2014
  UC275325  Fumaria officinalis Joseph P. Tracy 1924-5-17 6679 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC53906  Galium aparine Griswold, Butler 1979-7-11 6913 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1196095  Galium aparine Joseph P. Tracy 1935-7-23 14166 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC19850  Galium aparine J. W. Johnson 1962-4-18 1262 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  JEPS6702  Galium bolanderi Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  UC169072  Galium boreale subsp. septentrionale Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5883 Humboldt Trinity Summit North Coast Ranges Comment
  HSC19807  Galium californicum subsp. californicum Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3849 Humboldt E of Bridgeville, 4.4 mi. on Hwy. 36 to Dinsmore 457 Comment
  HSC57324  Galium mexicanum var. asperrimum Overton, Butler 1979-7-24 9587 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC19848  Galium mollugo H. E. Parks, J. P. Tracy 1937-7-16 11451 Humboldt Near Trinidad 61 Comment
  UC416658  Galium muricatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5471 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  JEPS14011  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt betw. Willow Creek and Blue Lake (summit of US Hwy 299) Comment
  UC176989  Galium parisiense Joseph P. Tracy 1913-6-10 4083 Humboldt on river below Bridgeville; Northern Coast Ranges, Van Duzen River, Rogers Ranch 152 Comment
  UC416659  Galium parisiense Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 B Humboldt summit North Coast Ranges, Hoopa Mtn. Range (between Hoopa Val. and Redwood Creek) Comment
  RSA53645  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  JEPS52974  Galium porrigens var. porrigens Lauramay T. Dempster and Jean Colton 1963-8-7 3888 Humboldt e Shelter Cove Comment
  JEPS6535  Galium triflorum W. L. Jepson 1932-7-27 16423 Humboldt Bull Creek 106 Comment
  OBI33244  Galium triflorum David J. Keil 1983-7-1 17258 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  POM232037  Galium triflorum I. L. Wiggins 1930-7-22 4688 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC28245  Galium triflorum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  HSC38193  Gamochaeta ustulata Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  UC165753  Gamochaeta ustulata J. P. Tracy 1906-5-20 2468 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC303388  Gamochaeta ustulata Joseph P. Tracy 1936-8-1 15057 Humboldt Canyon Creek, 6 miles SE of Blue Lake 365 Comment
  HSC56945  Garrya buxifolia Overton, Butler 1979-7-23 9435 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC73064  Garrya buxifolia M. A. Baker 1980-6-16 1949 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC188539  Garrya elliptica Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  LA40298  Garrya elliptica H. E. Parks; February 1933 - March 1933 4287 Humboldt Trinidad Comment
  CAS-BOT-BC182173  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1193366  Garrya fremontii P. Zinke 1950-10-9 183 Humboldt e side King Peak 1188 Comment
  UC484079  Garrya fremontii Carl B. Wolf 1930-10-24 Humboldt 1 mi above mouth of Slate Creek (along Klamath River); Klamath River 243 Comment
  HSC71725  Gastridium phleoides M. A. Baker 1980-6-26 2462 Humboldt Near Sims Creek 610 Comment
  UCD66724  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 487 Comment
  UC1714442  Gastridium ventricosum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. Comment
  HSC22501  Gaultheria shallon R. E. Thill 1965-4-27 20 Humboldt 1 mi. off Hwy. 299 on Essex Lane Rd. Comment
  HSC41340  Gaultheria shallon Brad Klipfel 1974-9-7 560 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC89436  Gaultheria shallon P. A. Daly 1984-5-13 25 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  UC32703  Gaultheria shallon Harley P. Chandler May, 1901 1161 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UC32704  Gaultheria shallon Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  UC484078  Gaultheria shallon Carl B. Wolf 1930-10-30 Humboldt 4 mi s of Thorn (Old Coast Road); Old Coast Road 304 Comment
  UCSB12342  Gaultheria shallon 1961-7-4 Humboldt 4.8 miles east of the North Fork of the Mad River on U.S. 299 685 Comment
  RSA303466  Gaultheria shallon Jim Shevock 1971-5-29 1140 Humboldt Trinity Hwy. 457 Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC55224  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-8-2 12402 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1196967  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13044 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS27605  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10401 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC35398  Gayophytum diffusum subsp. parviflorum Chesnut and Drew Humboldt Comment
  HSC14652  Genista monspessulana R. J. Vernimen 1963-2-26 7 Humboldt Sunnybrae in canyon parallel to Shirley Blvd. and ending at Beverly Dr. Comment
  RSA782434  Genista monspessulana R. W. Spjut, Paul Burchstead 2008-6-14 16348 Humboldt North Coast Ranges. West side of Hwy. 101 between Piercy and Willits 259 Comment
  UC562300  Gentiana affinis var. ovata Joseph P. Tracy 1933-10-1 13078 Humboldt hillsides Big Lagoon 91 Comment
  RSA18142  Gentiana oregana Carl B. Wolf 1927-8-22 807 Humboldt 1 mile south of Orick. Comment
  UC562303  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC902032  Gentiana sceptrum Joseph P. Tracy 1949-8-11 18457 Humboldt Snow Camp 1402 Comment
  UC165803  Geranium bicknellii Joseph P. Tracy 1909-7-31 3048 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC502970  Geranium carolinianum Joseph P. Tracy 1927-5-8 7959 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Region Comment
  UC1541258  Geranium molle H. E. Parks, J. P. Tracy 1930-5-25 875 Humboldt Laribee Valley 762 Comment
  UC1198954  Geranium solanderi Joseph P. Tracy 1931-5-23 9453 Humboldt vicinity of Trinidad (Trinidad Station); Northern Coast Region, Trinidad Station 60 Comment
  HSC35705  Gilia capitata subsp. capitata Thomas W. Nelson, B. Reinhardt 1975-7-30 2121 Humboldt Beside private road to Pilot Rock Comment
  HSC45058  Gilia capitata subsp. pacifica R. Sutherland 1978-4-24 14 .24478 Humboldt 12 Comment
  HSC100593  Gilia inconspicua Carl C. Marshall 1885-5-11 36 Humboldt Peninsula near Fairhaven. Comment
  HSC16984  Gilia millefoliata R. J. Vernimen 1963-5-11 45 Humboldt Clam Beach Lagoons, 10 mi. N of Arcata Comment
  HSC59713  Gilia millefoliata Clark L. Miller 1979-5-9 4114 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC89597  Gilia tricolor subsp. tricolor M. Roantree 1985-5-24 59 Humboldt S of Trinidad Head summit near cross Comment
  UC169033  Githopsis specularioides J. P. Tracy 1903-5-23 1906 Humboldt Alder Point Eel River 152 Comment
  CAS-BOT-BC218428  Glehnia littoralis subsp. leiocarpa Ira L. Wiggins 1930-7-7 4676 a Humboldt Sand dunes near Samoa Comment
  HSC26157  Glyceria elata J. P. Smith, Steve Selva 1970-6-30 4131 Humboldt Comment
Read comments
Jan 25 2012
  HSC34278  Glyceria elata Ken Irwin 1975-8-13 Humboldt Grogans Hole Area Comment
  SEINET201843 Image available Glyceria elata H. K. Sharsmith, F Chisaki 1959-8-22 4756 Humboldt Happy Camp just over Trinity County line 914 Comment
  SEINET200358 Image available Glyceria occidentalis J. P. Tracy 1930-8-3 9147 Humboldt Buck Mtn near Little Van Duzen; lower foothills of its NW slope 762 Comment
  SEINET11849375  Gnaphalium japonicum J. P. Tracy 1949-1 18591 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  HSC53977  Gnaphalium palustre Griswold, Butler 1979-7-11 7051 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  HSC100433  Gnaphalium sprengelii Carl C. Marshall Sep 1887 440 Humboldt Coast region. Comment
  HSC28140  Goodyera oblongifolia J. D. Ackerman 1973-8-23 117 Humboldt 2 mi. N of Manila Comment
  UCD138959  Goodyera oblongifolia Linda M. Barker 1976-8-24 1679 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC304742  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  CAS-BOT-BC304758  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  HSC12338  Grindelia hirsutula Steve Dorei 1970-10-26 116 Humboldt Arcata, on South G St. near curve Comment
  HSC35626  Grindelia hirsutula Thomas W. Nelson, James Nelson 1975-8-5 2139 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  JEPS41894  Grindelia hirsutula W. L. Jepson 1936-8-17 17924 Humboldt 2.5 mi s of Fields Landing (flats) Comment
  UC1173679  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt Big Lagoon 3 Comment
  UC1199435  Grindelia hirsutula Joseph P. Tracy 1938-6-17 15955 Humboldt s point of Cape Mendocino Cape Mendocino (in exposed situations near ocean shore) 3 Comment
  UC1525546  Grindelia hirsutula John L. Strother 1986-10-12 1355 Humboldt on Samoa Blvd. (rte 255) w of Arcata (nw side of Arcata Bay (Humboldt Bay) opposite Emmerson Div., Sierra Pacific Inc., roadside above saltmarsh); Humboldt Bay, Arcata Bay Comment
  UC166461  Grindelia hirsutula Joseph P. Tracy 1909-9-19 3094 Humboldt along salt water sloghs near Samoa; Humboldt Bay Comment
Read comments
Dec 17 2011
  UC1552453  Grindelia hirsutula R. D. Goeden 1987-9-2 21 Humboldt on bank above Mattole Road; Cape Mendocino (Cape Ridge) 182 Comment
  HSC103971  Grindelia stricta var. stricta C. Reynolds 2015-4-12 31 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  SJSU8446  Grindelia stricta var. stricta H. T. Harvey 1977-7-5 600 Humboldt Elk R Spit, Humboldt Bay Comment
  UC449871  Hackelia bella P. E. Goddard 1906-6 677 Humboldt Sasseck Peak Comment
  HSC97993  Hackelia bella Cara Witte 2007-7-9 461 Humboldt Along Forest Service Road 4N32. 1/4 mile west of intersection with 5N04 1508 Comment
  HSC61032  Hastingsia alba T. Jimerson, J. Pageau 1979-8-10 731 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC36595  Helenium bigelovii J. O. Sawyer, Thomas W. Nelson, Linda M. Barker 1975-9-4 1305 Humboldt Megwill Point on Elkhead, N of Trinidad in Trinidad State Beach 15 Comment
  RSA168831  Helenium bigelovii Joseph P. Tracy 1949-8-11 18462 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC306866  Helenium bolanderi Doris K. Kildale 1929-7-10 8398 Humboldt Big Lagoon Comment
  UC1199146  Helenium bolanderi Joseph P. Tracy 1934-8-22 15675 Humboldt Table Bluff 91 Comment
  UC175986  Helenium bolanderi J. P. Tracy 1912-7-22 3792 Humboldt near Loleta 91 Comment
  HSC5778  Helenium puberulum D. E. Anderson 1965-9-5 4091 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC166088  Helenium puberulum Joseph P. Tracy 1911-8-27 3534 Humboldt Ryan's Slough Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC1070058  Helminthotheca echioides H. L. Person 1932-8-20 19487 Humboldt Korbel Eureka Quad. Korbel Comment
  HSC39616  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-6-15 2720 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC44129  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road N from Alder Spring 1555 Comment
  CAS-BOT-BC306211  Hemizonia congesta subsp. congesta Doris K. Kildale 1927-8-29 3243 Humboldt Cape Mendocino Comment
  CAS-BOT-BC309985  Hemizonia congesta subsp. tracyi H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  CAS-BOT-BC309999  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-22 4752 Humboldt 11 miles from Blocksburg on road to Bridgeville Comment
  JEPS82128  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 Comment
  CDA40919  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 2 of 3 0 Comment
  BLMAR749  Heracleum maximum Kate McGrath 2015-7-13 748 Humboldt King range, strawberry rock grazing allotment 189 Comment
  HSC74295  Heracleum maximum M. A. Baker 1980-7-22 3124 Humboldt Near Grogan Hole. 1676 Comment
  HSC76406  Heracleum maximum Denis Kearns 1981-7-23 428 Humboldt Near Whiteys Peak. 1524 Comment
  HSC78088  Hesperevax sparsiflora var. brevifolia L. P. Janeway, Amy Eisenberg 1984-4-25 747 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven roads, NE of the willow patch. 3 Comment
  UC1212225  Hesperolinon adenophyllum Joseph P. Tracy 1946-8-25 17646 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  POM288698  Heterotheca oregona var. rudis Lyman Benson 1928-7-12 477 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  CAS-BOT-BC420739  Heuchera merriamii Joseph P. Tracy 1935-7-24 14172 Humboldt Trinity Summit near Ranger Station 1828 Comment
  CAS-BOT-BC420405  Heuchera micrantha var. diversifolia Harley P. Chandler 1901-5-1 1231 Humboldt Redwood Belt 457 Comment
  CAS-BOT-BC420723  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7148 Humboldt Willow Creek Comment
  UC1198859  Heuchera micrantha var. diversifolia Joseph P. Tracy 1937-5-30 15304 Humboldt 5 mi n Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  SEINET192937  Heuchera micrantha var. erubescens L. Constance, RC Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Cr 6 mi NE of Weitchpec Klamath-Siskiyou Region 152 Comment
  CAS-BOT-BC312386  Hieracium albiflorum Ira L. Wiggins 1930-7-22 4691 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC31200  Hieracium albiflorum D. E. Anderson 1972-6-20 5745 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC56932  Hieracium albiflorum G. L. Clifton, Butler 1979-7-26 9368 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC74734  Hieracium albiflorum Gail Newton 1981-7-24 2303 Humboldt Near Chaparral Mtn. 1433 Comment
  HSC98820  Hieracium albiflorum Cara Witte 2008-7-30 963 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  RSA32658  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek, Chaparral Mountain Comment
  UC127713  Hieracium albiflorum Harley P. Chandler 1901-6-1 1329 Humboldt Hupa Indian Reservation North Coast Ranges, , Hoopa Indian Re 152 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  RSA44541  Hieracium albiflorum H. M. Pollard 1947-8-23 s.n. Humboldt Fontana's Fishing Lodge, near Orleans. Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  UC39802  Hierochloe occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5424 Humboldt near Hubbards Station Comment
  CHSC23327  Hippuris vulgaris Robert F. Thorne; P. Everett 1965-8-9 35344 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. of ditch along roadside. 1 Comment
  JEPS45722  Hippuris vulgaris W. L. Jepson 1921-8-7 9335 Humboldt Stone Lagoon Comment
  HSC10129  Holcus lanatus Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC38837  Holcus lanatus R. Sutherland 1976-8-13 3 .13876 Humboldt Just above Whittemore Grove. 168 Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC34072  Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCR122375  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7009 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  SEINET13009486  Holcus lanatus Kenneth W. Parker 1930-6-12 1016 Humboldt Blocksburg. Comment
  SEINET8718745 Image available Holcus lanatus H. E. Parks, S. T. Parks 1943-1 24260 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC18669  Holodiscus discolor H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC99600  Holodiscus discolor Gilbert Muth 1979-8-1 11881 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  SD42284  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 305 Comment
  HSC58655  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-31 11727 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC902136  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  UC154501  Horkelia tridentata subsp. flavescens J. Burtt Davy 1899-6-19 5629 Humboldt from Bairs to Hoopa Hoopa Mt. Comment
  HSC100883  Hosackia gracilis Carl C. Marshall Apr 1885 113 Humboldt Coast region everywhere. Comment
  JEPS121647  Hosackia pinnata Jennifer Buck, Danielle Roach 2009-8-21 Humboldt Mistletoe Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM07A Comment
  JEPS14235  Hydrocotyle ranunculoides Joseph P. Tracy 1934-7-2 13288 Humboldt mouth of Little R. 3 Comment
  HSC102115  Hydrophyllum fendleri var. albifrons M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1019 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC99603  Hypericum anagalloides Gordon Leppig 1997-6-19 459 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS66783  Hypericum anagalloides Lincoln Constance 1934-6-25 922 Humboldt 4 mi. n. Dyverville (and of n. boundary of Humboldt Redwood Park, on Redwood Hwy, Englewood); S. Fork Eel R., Bull Creek Region, Englewood Comment
  CAS-BOT-BC401237  Hypericum perforatum Ira L. Wiggins 1930-7-22 4687 b Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UC1137469  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
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Sep 12 2009
  HSC24388  Hypericum perforatum J. O. Sawyer 1970-6-24 2240 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  UC166089  Hypochaeris glabra Joseph P. Tracy 1911-5-27 3193 Humboldt Comment
  UC166805  Hypochaeris radicata J. P. Tracy 1900-7-22 906 Humboldt immediate vicinity Eureka 0 Comment
  UC32896  Hypochaeris radicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5490 Humboldt near Camp Grant; North-Western California Comment
  UCSB30595  Hypochaeris radicata Edwards, David 1974-7-13 Humboldt In the NE corner of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  UCSB6709  Hypochaeris radicata Keator, Glenn 1958-6-18 Humboldt In the vicinity of Smith River (the town) Comment
  JEPS67375 Image available Iliamna latibracteata Mrs. V. P. Fox July, 1919 Humboldt Bald Mt. Comment
  RSA12528  Iliamna latibracteata Carl B. Wolf 1934-7-3 5909 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  UC902182 Image available Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Along Trinity Highway Willow Creek Canyon. 762 Comment
Read comments
Feb 27 2012
  CHSC24762  Iris G. Strang 1976-4-10 19 Humboldt N side of Highway 36 in Bridgeville. 1219 Comment
  JEPS8445  Iris Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (Bald Mountain ridge) (in meadow about Snow Camp); Snow Camp 1432 Comment
  CHSC2200  Iris douglasiana E. Crouch 1929-5-8 Humboldt Comment
  HSC13857  Iris douglasiana Elrid H. Spinas 1948-6-16 59 Humboldt Horse Mtn. Comment
  UC1103024  Iris douglasiana Joseph P. Tracy 1931-6-7 9574 Humboldt Eureka 30 Comment
  HSC32383  Iris douglasiana Linda M. Barker 1974-5-11 185 Humboldt Redwood National Park, W of Bald Hills Rd., NW of Gans Prairie 366 Comment
  JEPS86128  Iris douglasiana Wayne Roderick 1966-5-5 Humboldt ca 2 mi e Carlotta 30 Comment
  UC175302  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 B Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC100379  Iris macrosiphon J. Moore 2007-6-13 Humboldt Horse Mountain Botanical Area, off Hwy. 1. 1220 Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  CDA33248  Iris purdyi Gordon Leppig 1998-6-1 867 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC64219  Iris tenuissima J. O. Sawyer, M. A. Ericksen 1979-6-23 3382 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC67518  Iris tenuissima J. P. Smith, J. O. Sawyer 1976-5-2 8620 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC13887  Iris tenuissima B. R. Templeton 1962-5-24 Humboldt Berry Summit, E slope Comment
  HSC49284  Iris tenuissima J. O. Sawyer 1977-4-23 2839 Humboldt On road to Fish Lake Comment
  UC906715  Isoetes nuttallii Joseph P. Tracy 1942-6-15 17138 Humboldt Miranda 121 Comment
  JEPS60150  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold Springs Grouse Mt; Grouse Mt., Cold Springs 1432 Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS64019  Isolepis cernua W. L. Jepson 1921-8-7 9326 Humboldt on the flats and beach Stone Lagoon Comment
  CAS-BOT-BC340152  Jaumea carnosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1173 Humboldt Around Fields Landing Comment
  HSC83037  Jaumea carnosa A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  CDA8060  Jaumea carnosa T. C. Fuller 1961-9-27 7044 Humboldt West of Highway 101, 1 mile north of Indianola Road, 5 miles north of Eureka. 0 Comment
  HSC103408  Juncus bolanderi Ivy Watson 2008-10-5 34 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  HSC45436  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-2 4402 Humboldt Wet alluvial soil at Lost Lake 1433 Comment
  CHSC43010  Juncus breweri L. P. Janeway 1987-7-31 2538 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  RSA245249  Juncus breweri Tim Baroni 1971-6-26 69 Humboldt Out on the Samoa Peninsula, just opposite the Georgia Pacific pulp mill. Comment
  HSC44314  Juncus covillei Thomas W. Nelson, Jane Nelson 1977-8-6 3698 Humboldt Above Alder Spring 1616 Comment
  SDSU11740  Juncus effusus var. brunneus D. F. Howe 1961-8-2 3119 Humboldt 8.5 miles east of Orick on Bald Mt. road. 610 Comment
  HSC97214  Juncus ensifolius M. Mesler 2007-7-15 781 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UC249814  Juncus ensifolius Joseph P. Tracy 1924-7-4 6703 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  HSC74174  Juncus exiguus M. A. Baker 1980-7-22 3123 Humboldt Near Grogan Hole. 1676 Comment
  HSC46967  Juncus falcatus J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC1103054  Juncus hesperius Joseph P. Tracy 1901-7-29 1229 Humboldt Eureka Northern Coast Region 0 Comment
  UC1152104  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt 2 mi e Carlotta 30 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
  UCD150380  Juncus lescurii William Anderson and H. Mc. 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  UC1152001  Juncus occidentalis Joseph P. Tracy 1937-8-3 15609 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  RSA742777  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  RSA12427  Juncus saximontanus Carl B. Wolf 1934-7-2 5867 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  CHSC103507  Juncus xiphioides Peter F. Zika 2009-6-16 24501 Humboldt Outer North Coast Ranges. West shore of Trinity River, near boat ramp, N end of town of Willow Creek. 120 Comment
  UC314634  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1925-7-5 7177 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS23776  Keckiella corymbosa Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-5 6929 Humboldt just s Richardson Grove (along U.S. Highway 101) 68 Comment
  UC1193337  Keckiella corymbosa P. Zinke 184 Humboldt 300 yds nw of summit King Peak 1249 Comment
  UC213143  Keckiella lemmonii E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  UC213502  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek; Northern Coast Ranges, Klamath River 152 Comment
  HSC56112  Kelloggia galioides G. L. Clifton 1979-7-31 11876 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1132146  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain Comment
  UCD85995  Koeleria macrantha Joseph P. Tracy 1936-8-2 15071 Humboldt French Camp Ridge. 1066 Comment
  JEPS7507  Kyhosia bolanderi Joseph P. Tracy 1935-7-23 14136 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC479390  Lactuca biennis Marcus E. Jones, A. M. 1931-7-14 29090 Humboldt s Eureka Comment
  HSC98659  Lactuca biennis Cara Witte 2007-7-26 591 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UC169331  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3965 Humboldt opposite Buck Mountain (in field); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UCD125067  Lamium purpureum Joseph P. Tracy 1945-5-10 17508 Humboldt Eureka. 45 Comment
  HSC34652  Lamium purpureum A. M. Montalvo 1975-4-10 205 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  CAS-BOT-BC337869  Lapsana communis Carl B. Wolf 1927-8-22 801 Humboldt Big Lagoon Comment
  JEPS10178  Lasthenia californica subsp. californica W. L. Jepson 1902-6-10 1885 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  SEINET11811255  Lasthenia chrysostoma J. P. Tracy 1947-1 17752 Humboldt Larrabee Valley 732 Comment
  CAS-BOT-BC352933  Lasthenia glaberrima Joseph P. Tracy; Harold E. Parks 1935-6-16 11274 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  UC594160  Lasthenia glaberrima S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3439 Humboldt nw slopes Buck Mountain 822 Comment
  UC1222400  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1946-5-4 17523 Humboldt w side near sw corner Hoopa Valley Comment
  JEPS55279  Lathyrus latifolius W. L. Jepson 1932-7-30 16464 Humboldt Scotia Comment
  HSC26882  Lathyrus latifolius Clifton Raymond Chesbrough 1973-6-19 89 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  RSA183499  Lathyrus littoralis J. R. Woodside 1963-4-3 31 Humboldt One and one fourth miles north of Fairhaven. Comment
  SEINET5327351  Lathyrus palustris J. Tracy 1907-7-20 2593 Humboldt near Samoa; region about Humboldt Bay 152 Comment
  UC1199066  Lathyrus torreyi Joseph P. Tracy 1922-6-5 6084 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC23072  Lathyrus tracyi Richard Spjut 1971-5-7 1859 Humboldt 2-4 mi. up Three creeks Rd., W of Willow Creek 457 Comment
  UC709417  Lathyrus vestitus Joseph P. Tracy 1933-5-18 12195 Humboldt near Essex; Mad River 30 Comment
  RSA64951  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mile SE of Willow Creek, along Highway #299. Comment
  HSC103337  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7413 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  HSC5913  Layia carnosa J. P. Tracy 1917-5-30 4796 Humboldt Mouth of Little River. 6 Comment
  HSC5914  Layia carnosa Francis Winter 1960-5-6 Humboldt Mouth of Mad River. Comment
  UC34740  Layia carnosa W. C. Blasdale 1896-6-2 Humboldt Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  SD87756  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt Mad River, near Blue Lake Comment
  HSC97990  Leptosiphon ciliatus subsp. ciliatus Cara Witte 2007-7-8 431 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  RSA135357  Leptosiphon nuttallii Volney Rattan 1878-1 s.n. Humboldt [no additional locality data provided] Comment
  SEINET4889187 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks August 1943 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UC581785  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt along Mad River; Blue Lake Comment
  CAS-BOT-BC334614  Leucanthemum vulgare L. R. Abrams 1922-6-25 8236 Humboldt 2 miles south of Fortuna Comment
  HSC5361  Leucanthemum vulgare R. Spellenberg 1964-6-15 411 Humboldt Near Humboldt Bay on the S side of Arcata. Comment
  HSC3107  Leucojum aestivum D. B. Mitchell 1965-3-5 - 3 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  HSC101974  Lewisia triphylla M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 871 Humboldt Patterson Meadows 1555 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
  UCD65598  Leymus triticoides Malcolm A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, CA. 2 miles N of Eureka. Comment
  HSC56004  Ligusticum grayi Overton, Butler 1979-7-31 11455 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SEINET231011 Image available Ligusticum grayi A. Tiehm 1985-7-26 10005 Humboldt Santa Rosa Range seep at the head of Morey Creek E of Ridge crest at S end of range Comment
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Oct 28 2014
  HSC36102  Lilaeopsis occidentalis David Sohrakoff 1972-12-11 3 Humboldt Northern most Clam Beach Pond Comment
  CAS-BOT-BC130511  Lilium bolanderi Tom Craig 1941-6-20 s.n. Humboldt Joyell Mine, 10 miles east of Green City Comment
  CAS-BOT-BC508390  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  RSA259541  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
  RSA766918  Lilium columbianum Joseph M. Keefe 1967-7-8 1876 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 2 Comment
  CAS-BOT-BC130636  Lilium kelloggii A. M. Vollmer; L. Beane 1951-6-1 148 Humboldt On road to Bald Mountain, east of Korbel Comment
  CAS-BOT-BC130641  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  HSC33260  Lilium kelloggii A. M. Montalvo, J. D. Ackerman 1974-8-1 399 Humboldt 1.0 mi. W of Kneeland Post Office on Greenwood Heights Rd. Comment
  CAS-BOT-BC130687  Lilium occidentale Doris K. Kildale 1925-7-1 1338 Humboldt Near Bayside Comment
  HSC33663  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  SEINET4063663  Lilium occidentale O. M. Clark 1932-1 Humboldt Comment
  SEINET3992216  Lilium pardalinum Unknown 1908-6-27 2868 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  HSC56956  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9467 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC57704  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-7-25 10947 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC15586  Lilium pardalinum subsp. pardalinum D. G. Hauger 1967-7-15 52 Humboldt Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  HSC72679  Lilium rubescens J. P. Smith 1977-7-3 9243 Humboldt Road to Onion Mtn., 1/4 mile from its junction with USFS Rd. 10N41 762 Comment
  RSA12529  Lilium washingtonianum subsp. purpurascens Carl B. Wolf 1934-7-2 5908 Humboldt 7 miles from Bald Mountain on road to Snow Camp (mountains east of Korbel) 1067 Comment
  CDA1626  Limnobium laevigatum Gordon Leppig, Tony LaBanca 2003-3-13 1823 Humboldt Alder Grove Pond, Arcata. Comment
  SEINET7253531 Image available Limonium californicum Joseph P. Tracy 1901-1 1254 Humboldt At Samoa 1 Comment
  JEPS58246  Linanthus bicolor Lincoln Constance 1934-6-4 816 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  UC1222729  Linanthus filipes Joseph P. Tracy 1950-5-30 18710 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC98065  Linnaea borealis Cara Witte 2007-7-12 523 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC43105  Linum grandiflorum Maralyn O'Meara 1974-5-14 358 Humboldt Along Hwy. 36 ca. 2.4 mi. E of Bridgeville. Comment
  HSC64187  Listera convallarioides J. O. Sawyer, M. A. Ericksen 1979-6-23 3388 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC275532  Listera cordata Joseph P. Tracy 1924-3-30 6632 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  CAS-BOT-BC36107  Lithocarpus densiflorus var. densiflorus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 762 Comment
  CAS-BOT-BC36581  Lithocarpus densiflorus var. echinoides Doris Kildale Gillespie 1931-6-7 10604 Humboldt South Fork Mt., Brush lookout 1726 Comment
  UC1225787  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18136 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1225788  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon; along Trinity Highway 457 Comment
  UC1196488  Lithophragma campanulatum Joseph P. Tracy 1933-7-26 12926 Humboldt on the s slope Grouse Mountain; s slope Grouse Mountain 1219 Comment
  HSC48747  Lithophragma heterophyllum Brad Klipfel 1973-6-10 86 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC435645  Lithophragma heterophyllum Volney Rattan 1883-6-1 s.n. Humboldt Between Mad R. and Pilot Creek Comment
  HSC96950  Lithophragma parviflorum Elizabeth Kimbrough, Whitney Meier 2007-6-4 2 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 off FS Rd. NF1 on FS Rd. 5N27 1390 Comment
  CAS-BOT-BC342348  Logfia gallica Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC61764  Logfia gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan; 1 mi. above Pecwan on old road, S side Comment
  CAS-BOT-BC283407  Lolium multiflorum H. M. Hall 1924-8-9 s.n. Humboldt Van Duzen River Valley, near Carlotta Comment
  UC1117652  Lolium multiflorum C. L. Hitchcock 1963-7-14 22906 Humboldt along Eel River at Fern Bridge; along Eel River Comment
  HSC10306  Lolium perenne R. H. Berg 1963-2-27 4 Humboldt Arcata, Fickle Hill area. Comment
  UC249793  Lolium perenne Joseph P. Tracy 1923-8-25 6539 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC70992  Lomatium californicum Gail Newton 1980-7-15 1575 Humboldt Near Sims Mtn. 1311 Comment
  HSC45394  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3582 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  JEPS17125  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1902-6 1891 Humboldt Fort Seward Ranch ridge (= Mail Ridge) 1066 Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC55723  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-26 10172 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC74396  Lomatium macrocarpum Gail Newton 1980-6-28 720 Humboldt Near Mad River Butte. 1536 Comment
  HSC78918  Lomatium macrocarpum T. Jimerson, D. K. Imper 1982-5-17 1437 Humboldt Near Ashfield Ridge. 822 Comment
  UC642329  Lomatium macrocarpum Joseph P. Tracy 1933-7-25 12894 Humboldt Grouse Mt. 1524 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
  RSA452594  Lomatium tracyi B. Kelly 1977-7-16 537 Humboldt 1/4 mile in from Horse Mountain Road, 1/2 mile below turnoff to summit, near end of unused gravel road. Comment
  JEPS17553  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, South Yager Creek Valley 762 Comment
  UC1186378  Lomatium utriculatum R. Ornduff 1960-6-1 6182 Humboldt ca. 6 mi. e. Garberville (on rd. to Alder Point) Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  HSC58184  Lonicera conjugialis G. L. Clifton, Griswold 1979-8-2 12272 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA168961  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  SEINET5222458  Lonicera involucrata Unknown 2002-8-22 85 Humboldt McKinleyville, along Fischer Road just N of the Mad River Comment
  CAS-BOT-BC241489  Lonicera involucrata var. ledebourii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC241495  Lonicera involucrata var. ledebourii D. E. Breedlove 1962-6-7 3047 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC37832  Lonicera involucrata var. ledebourii Thomas W. Nelson, James Nelson 1976-3-11 2264 Humboldt Beside Eel River just N of W terminus of Singley Rd. Comment
  HSC3925  Lonicera involucrata var. ledebourii Jack Rockwell 1962-4-29 40 Humboldt N bank of Van Duzen River, E of Hwy. 101 9 Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  UC1239557  Lonicera involucrata var. ledebourii Joseph P. Tracy 1901-4-21 1033 Humboldt Eureka Northern Coast Region 0 Comment
  UC1239558  Lonicera involucrata var. ledebourii Joseph P. Tracy 1933-5-20 12219 Humboldt Capetown Bear River 30 Comment
  UC180196  Lonicera involucrata var. ledebourii Joseph P. Tracy 1914-7-12 4584 Humboldt near Hookton; Northern Coast Region, Humboldt Bay 0 Comment
  SEINET5736924 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 4.5 miles to collection site. Comment
  UC179940  Lotus aboriginus Joseph P. Tracy 1914-9-6 4599 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  UC15635  Lotus micranthus Harley P. Chandler May 1901 1136 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UC162606  Lotus purshianus var. purshianus Harley P. Chandler Jun 1901 1394 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1223415  Lotus purshianus var. purshianus Joseph P. Tracy 1938-8-7 16102 Humboldt 5 mi n Garberville Comment
  SEINET181202 Image available Lotus scoparius var. scoparius Bassett Maguire, Ruth Maguire 1934-6-8 15126 Humboldt Vicinity Squaw Creek Comment
  RSA12444  Lotus unifoliolatus Carl B. Wolf 1934-7-1 5849 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  HSC43849  Lotus unifoliolatus var. unifoliolatus Maralyn O'Meara 1974-7-17 558 Humboldt Kneeland Comment
  CAS-BOT-BC342555  Luina hypoleuca L. B. Kildale 1930-7-7 10262 Humboldt Chaparall [Chaparral] Mt at Bug Creek 914 Comment
  UC1223267  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-6-25 18340 Humboldt at Big Hill on road w Box Camp (w slope of summit Trinity Summit); Trinity Summit, at Big Hill Comment
  UC1223268  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-8-7 18433 Humboldt on road from Hoopa to Box Camp at summit of ridge near where the road to Big Hill turns off Trinity Summit; , rd fr Hoopa to Box Camp Comment
  UC503011  Lupinus albifrons Joseph P. Tracy 1932-5-1 9874 Humboldt Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC90219  Lupinus arboreus L. Watson, J. Meninga Aug 1990 7 Humboldt Near Manilla. Mad River Slough and Dunes. 30 yds. N of parking lot, W side of trail. Comment
  SD81280  Lupinus arboreus Darley F. Howe 1969-5-30 4586 Humboldt 2.4 miles south of Orick on Hwy 101, fresh-water lagoon Comment
  UC484046  Lupinus arboreus Carl B. Wolf 1930-10-28 1780 Humboldt Samoa; Humboldt Bay, Samoa 15 Comment
  HSC103986  Lupinus bicolor E. R. Fyer 2015-4-26 26 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  HSC14801  Lupinus bicolor R. T. Forester 1963-5-6 44 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC38190  Lupinus bicolor Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  SEINET1906216  Lupinus bicolor Barbara Ertter, Thomas J. Delendick 1987-1 6924 Humboldt Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata; 914 Comment
  JEPS82142  Lupinus constancei Thomas W. Nelson and Jane P. Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to e North Coast Ranges, Blockburg Quad., Mt. Lassic (Signal Peak; Blocksburg Quadrangle on Mt. Lassic (Signal Peak), Humboldt Co. 1767 Comment
  HSC103130  Lupinus elmeri M. Mesler 2009-7-31 814 Humboldt South Fork Mtn. FS 1, 7.7 miles north of intersection with 4N12 1767 Comment
  HSC57309  Lupinus latifolius Griswold, Butler 1979-7-10 6265 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC35702  Lupinus luteolus Thomas W. Nelson, B. Reinhardt 1975-7-30 2118 Humboldt E of Pilot Rock Comment
  SEINET10486156  Lupinus polycarpus Charles R. Gunn 1963-6-3 Gunn 2702 Humboldt 1/2 mi s of korbel on gravel road. In ditch along south mad river. Comment
  UC176608  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1913-6-25 4335 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1488739  Lupinus tracyi Marc Baker 1980-7-22 3060 Humboldt Salmon Mountain; Salmon Mt. Quad., near Salmon Mountain 287 Comment
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Jul 7 2009
  RSA87079  Lupinus vallicola subsp. apricus F. W. Peirson 1923-7-10 4221 Humboldt Garberville Comment
  HSC23088  Luzula comosa D. E. Anderson 1965-5-1 3565 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  RSA168865  Luzula comosa Joseph P. Tracy 1951-6-26 19546 Humboldt Snow Camp Meadow. Comment
  UC964789  Luzula comosa var. laxa Harold E. Parks and Joseph P. Tracy 1947-6-26 11643 Humboldt McKay Camp, South Fork Mt. 1676 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
  SEINET8717647 Image available Luzula multiflora Harold E. Parks, Joseph P. Tracy 1947-1 11643 Humboldt McKay Camp. South Fork Mountain 1676 Comment
  HSC70988  Luzula parviflora Gail Newton 1980-7-20 1649 Humboldt Near Bell Swamps. 1426 Comment
  UC184187  Luzula parviflora Joseph P. Tracy 1900-5-28 810 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  UC183767  Luzula subsessilis Joseph P. Tracy 1914-5-14 4443 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  HSC906  Lycopodiella inundata D. E. Anderson 1961-9-13 1803 Humboldt Big Lagon Bog, Big Lagoon County Park Comment
  CHSC96729  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt The Pacific Lumber Company land. UTM Zone 10 0411778E, 4516248N. 300 Comment
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Jan 21 2014
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  UCSC001038  Lycopodium clavatum W. Jan Rowe 1967-7-8 61 Humboldt 4.5 miles southeast of Trinidad Trinidad Comment
  CAS-BOT-BC215685  Lycopus uniflorus Henry M. Pollard 1956-10-9 s.n. Humboldt Sand-bar near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  HSC93250  Lysichiton americanus Gordon Leppig 1998-3-9 712 Humboldt Arcata, Alder Grove Pond, E side 12 Comment
  JEPS432  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  UC1198469  Lythrum hyssopifolia Joseph P. Tracy 1942-6-15 17117 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  UC183603  Lythrum hyssopifolia Joseph P. Tracy 1912-10-20 4006 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC34698  Lythrum hyssopifolia Thomas W. Nelson 1974-9-12 1706 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC100370  Lythrum salicaria L. D. Hoover 1996-4-29 Humboldt Along Hwy. 36, private property (Simmons). Comment
  BLMAR185  Madia citriodora Donald Hazlett 1994-6-7 185 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC342799  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 miles north of Garberville at Dean Creek Lodge Comment
  HSC34699  Madia elegans Thomas W. Nelson 1974-8-24 1704 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC96257  Madia elegans J. McIntire, S. Lyon 2005-6-10 9 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 1006 Comment
  POM161463  Madia elegans subsp. elegans Joseph P. Tracy 2683 Humboldt Hillside near bridge across Little Va Duzen, northwest slope of Buck Mountain 762 Comment
  HSC38099  Madia exigua Thomas W. Nelson, James Nelson 1976-5-30 2622 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC56970  Madia exigua Overton, Butler 1979-7-23 9499 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC49904  Madia exigua Maralyn O'Meara 1973-6-12 203 Humboldt S-facing slope Comment
  HSC74504  Madia gracilis Gail Newton 1980-8-10 2053 Humboldt Near Blake Mtn. 1707 Comment
  JEPS40411  Madia gracilis W. L. Jepson 1902-7-1 1967 Humboldt at Berry's Ranch; Redwood Creek Comment
  RSA554592  Mahonia aquifolium W. Wisura 1993-5-9 4910 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  RSA46904  Mahonia nervosa Doris K. Kildale 1926-12-26 2882 Humboldt Kneeland, near water trough. Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  HSC89446  Maianthemum dilatatum P. A. Daly 1984-5-13 23 Humboldt Along trail at Trinidad Head 61 Comment
  POM224223  Maianthemum dilatatum H. E. Parks 1932-05 4289 Humboldt Bishop Pine Lodge, Trinidad. Comment
  CAS-BOT-BC508504  Maianthemum dilatatum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC15593  Maianthemum dilatatum S. R. Johnson 1965-4-30 48 Humboldt 2 mi. N of Luffenholtz Beach Comment
  SBBG1057  Maianthemum racemosum H. and M. Dearing 1933-5-16 259 Humboldt Weott Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA309620  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1983-9-3 3932 Humboldt 3,2 mi W of Klamath River bridge W of Weitchpec, along road to Orick. Comment
  RSA554593  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1993-5-9 4911 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  SEINET12050378  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1988-1 88 -270 Humboldt 14 mi W of Bridgeville to Carlotta on CA 36, Mile Marker 11.40, Van Duzen Co. Park (Pamplin Grove) 50 Comment
  UC1223206  Malacothrix clevelandii Joseph P. Tracy 1946-11-17 17667 Humboldt at mouth Van Duzen River; Eel River at mouth of Van Duzen River Comment
  UC1239528  Malacothrix floccifera Joseph P. Tracy 1916-9-5 4771 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  RSA246761  Malus fusca Robert F. Thorne 1965-8-9 35300 Humboldt Big Lagoon. 3 Comment
  UC14229  Malus fusca Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  JEPS68659  Malva nicaeensis Lincoln Constance 1934-6-18 9006 Humboldt n border of Dyerville Flat (near South Fork Railroad Station and Post Office, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  UC180180  Malva parviflora Joseph P. Tracy 1914-6-26 4518 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  BLMAR684  Marah fabacea Jennifer Wheeler 2013-6-25 684 Humboldt King range, Strawberry Rock 76 Comment
  HSC7036  Marah oregana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  JEPS42491  Marah oregana W. L. Jepson and W. W. Mott 1903-6-23 2207 Humboldt White Thorn Comment
  UC204870  Matricaria occidentalis Joseph P. Tracy 1918-6-16 4955 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  UC1103753  Melica aristata Joseph P. Tracy 1936-8-7 15105 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC281327  Melica harfordii Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  UC552699  Melica harfordii Joseph P. Tracy 1935-7-14 14079 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UCD87544  Melica harfordii A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  SEINET10599425  Melica harfordii Harley P. Chandler Chandler 1477 Humboldt Klamath River. 366 Comment
  SEINET11678859  Melica harfordii H. P. Chandler 1901-1 1477 Humboldt Klamath River, North Coast Ranges 366 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
  HSC58679  Melica subulata G. L. Clifton, Griswold 1979-8-2 12213 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD88652  Melica subulata A. H. Murphy 1951-5-18 41 Humboldt K. Roscoe Ranch, Upper Mattole. Comment
  UCSC000054  Melica subulata August L. Hormay 1932-5-11 s.n. Humboldt Korbel Comment
  UC1222472  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide Van Duzen River 91 Comment
  UC673063  Melilotus albus Joseph P. Tracy 1933-8-13 1 Humboldt along river near Blue Lake; Mad River 15 Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC14252  Mentha canadensis H. E. Parks, S. T. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  RSA21020  Mentha canadensis Carl B. Wolf 1937-9-12 9320 Humboldt Big Lagoon, south side along Redwood Hwy 6 Comment
  POM283192  Mentha pulegium Lyman Benson 1929-7-14 1558 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  UC166030  Mentzelia dispersa Joseph P. Tracy 1908-6 2843 Humboldt n/w slope Buck Mountain; Northern Coast Ranges 1219 Comment
  JEPS42849  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1932-7-25 16397 Humboldt Eel River, Old Camp Grant Comment
  UCR37537  Menziesia ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., east of HSU 168 Comment
  UC1223188  Micropus californicus var. californicus Joseph P. Tracy 1950-6-15 18774 Humboldt 5 mi n Harris (on the old Overland Road); Mail Ridge, on the old Overland Road Comment
  CAS-BOT-BC322621  Microseris Milo S. Baker 1927-8-21 2488 a Humboldt Near Baldt Mt. 914 Comment
  CAS-BOT-BC348709  Microseris bigelovii Dr. A. Kellogg; W. G. W. Harford 1868-1-1 579 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  CAS-BOT-BC322681  Microseris laciniata Harley P. Chandler 1901-6-1 1408 Humboldt Klamath River 243 Comment
  HSC102010  Microsteris gracilis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 911 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC58236  Microsteris gracilis Walter Overton 1979-8-1 12394 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC75437  Microsteris gracilis J. O. Sawyer 1980-7-18 3593 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC77403  Microsteris gracilis L. P. Janeway 1983-4-16 229 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  HSC17124  Microsteris gracilis D. E. Anderson 1963-5-19 2460 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  UC147924  Mimulus arvensis Joseph P. Tracy 1909-6-20 3000 Humboldt Freshwater Creek Northern Coast Region, Humboldt Bay region 0 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  JEPS10240  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  UC1063400  Mimulus aurantiacus var. aurantiacus A. E. Wieslander 1931-5-22 217 Humboldt hills s Ferndale; Cape Fortuna Quadrangle Comment
  HSC20704  Mimulus cardinalis Paul Shields 1955-8-12 Humboldt 1/2 mi. N of Miranda Comment
  UC418983  Mimulus dentatus H. E. Parks May 1930 Humboldt above Carlotta; Van Duzen River Comment
  UCSB15934  Mimulus dentatus Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  HSC20729  Mimulus guttatus D. E. Anderson 1961-8-25 1741 Humboldt 1.5 mi. S of Trinidad Comment
  RSA454335  Mimulus guttatus R. S. Woglum 1938-8-28 2044 -A Humboldt Grounds of Trinidad State Park, south of Trinidad. (northcentral-coastal Humboldt) Comment
  UC582477  Mimulus inodorus Joseph P. Tracy 1933-7-25 12852 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196768  Mimulus inodorus Joseph P. Tracy 1939-8-5 16376 Humboldt Dinsmore's Van Duzen River 731 Comment
  UC444806  Mimulus kelloggii Mrs. M. H. Manning 1901-5-26 Humboldt near Hupa; Hupa Valley Comment
  UC582599  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 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
  JEPS14946  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt w slope near top South Fork Mountain (at Hyampom Trail) 1676 Comment
  UC41845  Mimulus nanus var. nanus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC582706  Mimulus nasutus Joseph P. Tracy 1927-3-27 7850 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  UC582497  Mimulus primuloides Joseph P. Tracy 1935-7-26 14258 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC97942  Mimulus pulsiferae Cara Witte 2007-6-20 304 Humboldt National Forest 1. 1/4 mile north of intersection with 5N09. 1434 Comment
  UC1103333  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12834 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  HSC74275  Minuartia douglasii M. A. Baker 1980-5-23 1383 Humboldt Near Buck Mtn. 1524 Comment
  UC668121  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  UC176959  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1912-7-31 3926 Humboldt Buck Mountain Northern Coast Ranges (near the summit) 1676 Comment
  UC303177  Mitella caulescens Joseph P. Tracy 1923-6-24 6361 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC433009  Mitella diversifolia J. H. Thomas 1949-6-13 911 Humboldt Between Le Perron Flat and Whitey's Peak, along trail. East of town of Orleans. 1371 Comment
  CAS-BOT-BC433032  Mitella ovalis Lincoln Constance; Reed C. Rollins 1942-5-11 2865 Humboldt California North Coast Ranges. Near summit 8 miles east of Blue Lake. Comment
  HSC55834  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10760 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC99347  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  UC161044  Moehringia macrophylla Joseph P. Tracy 1908-6-8 2631 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC73745  Monardella odoratissima subsp. pallida M. A. Baker 1980-7-19 2989 Humboldt Near Bret Hole. 1814 Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  HSC14282  Monardella villosa Paul Shields Jul 1955 Humboldt 3 mi. S of Myers Flat Comment
  UC577347  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15425 Humboldt Vicinity of Garberville 121 Comment
  HSC62708  Monotropa hypopitys M. A. Baker 1979-7-6 1008 Humboldt Comment
  CAS-BOT-BC444830  Montia fontana Doris K. Kildale 1927-7-22 3922 Humboldt Lassecks Peaks - Corral Camp 1661 Comment
  JEPS17205  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River, Phillipsville Flat Eel River; Northern Coast Ranges, Phillipsville Flat, Eel River 91 Comment
  HSC97935  Montia linearis Cara Witte 2007-5-21 63 Humboldt White Oak Opening. 1257 Comment
  CAS-BOT-BC445152  Montia parvifolia C. C. Harris; S. K. Harris 1936-6-12 3341 Humboldt On Chalk Mountain near Bridgeville. Comment
  UC162970  Montia parvifolia Joseph P. Tracy 1908-6 2708 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC83800  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  UC582561  Myosotis discolor Joseph P. Tracy 1937-5-17 15298 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  HSC3729  Myosotis sylvatica Richard Steele 1962-4-4 13 Humboldt Arcata; just W of HSC campus 15 Comment
  JEPS30068  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  POM280267  Myrica californica Lyman Benson 1930-7-18 2191 Humboldt Shively, seaward north coast Mt. range, Eel River. 46 Comment
  RSA46887  Myrica californica Doris K. Kildale 1926-6-18 2393 Humboldt Gold Bluffs. Comment
  UC1152040  Nassella pulchra A. H. Murphy 1951-3-30 Humboldt along roadside near Mattole River Grange Hall; Mattole Valley Comment
  HSC6874  Nasturtium officinale R. L. Jarvis 1962-4-17 17 Humboldt 0.5 mi. S of Bayside turnoff on Old Arcata Rd. 15 Comment
  RSA43883  Navarretia atractyloides H. M. Pollard 1948-8-5 s.n. Humboldt Orleans Comment
  UC908512  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC73502  Navarretia capillaris Gail Newton 1980-7-11 1325 Humboldt Near Red Mtn. 1341 Comment
  UC908388  Navarretia divaricata Joseph P. Tracy 1932-7-11 10395 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC133661  Navarretia divaricata subsp. vividior Joseph P. Tracy 1908-6 2721 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC907952  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  HSC35861  Navarretia mellita Thomas W. Nelson, James Nelson 1975-8-5 2132 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  UC1198529  Navarretia squarrosa Joseph P. Tracy 1908-6 2853 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  JEPS70475  Navarretia squarrosa Lincoln Constance 1934-6-25 931 Humboldt across road Collin's Englewood Campground (on e side of road at Englewood, main Eel River); Eel River, Bull Creek Region, Englewood Comment
  UC1222711  Navarretia tagetina Joseph P. Tracy 1950-6-15 18826 Humboldt near (on ne side) Huestis Rock; Mail Ridge Comment
  UCR143528  Navarretia tagetina J. P. Tracy 1950-6-23 18862 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint 213 Comment
  SEINET3156479  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  HSC36876  Nemophila menziesii J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8612 Humboldt Bald Hills Rd., 17 mi. from its jct. with Hwy. 101 854 Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  HSC71028  Nemophila menziesii var. atomaria Thomas W. Nelson 1977-4-20 3320 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  RSA43880  Nicotiana acuminata H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC74643  Noccaea fendleri subsp. glauca M. A. Baker 1980-5-18 1365 Humboldt Near Black Mtn. 792 Comment
  UCR4969  Notholithocarpus densiflorus Frank C. Vasek 1966-7-13 660713- 03 Humboldt North Coast Range, 3 mi. west of Garberville 450 Comment
  HSC8070  Notholithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-22 2569 Humboldt Bald Hills; E end of Tomlinson's Prarie 716 Comment
  HSC20657  Nuttallanthus texanus R. J. Vernimen 1963-4-27 36 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  CAS-BOT-BC142291  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC142300  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  UC1198789  Oemleria cerasiformis Joseph P. Tracy 1933-3-26 10946 Humboldt hills at n end Big Lagoon 60 Comment
  UC916666  Oenanthe pimpinelloides Joseph P. Tracy 1950-8-18 19330 Humboldt along Blocksburg rd. near bridge across Larrabee Creek 457 Comment
  SEINET10964717  Oenanthe sarmentosa Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 481 Humboldt Collected by Hwy. 101, N side of Orick. 30 Comment
  UCD127756  Oenanthe sarmentosa Collector Unknown 1932-7-1 s.n. Humboldt California Seed Lab. Comment
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  HSC16487  Oenothera glazioviana Wm. F. Bowman 1968-11-20 Humboldt At the jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  CDA38174  Oenothera villosa subsp. strigosa E. C. Whitney 1966-8-3 s.n. Humboldt Orleans; Ferris Property. 0 Comment
  HSC37886  Olsynium douglasii var. douglasii Thomas W. Nelson 1976-4-3 2288 Humboldt On large rock at head of Goat Rock slide, N side of Van Duzen River Comment
  CAS-BOT-BC499671  Orobanche californica subsp. californica Ira L. Wiggins 1932-7-19 5894 Humboldt Near the beach at south end of Big Lagoon Comment
  HSC102095  Orobanche uniflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 998 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC54740  Orthilia secunda G. L. Clifton, Griswold 1979-7-26 10203 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  RSA183530  Orthocarpus erianthus R. J. Vernimen 1963-5-11 54 Humboldt 0.5 mile off the Samoa road behind the Georgia-Pacific dump, 7.5 miles SW of Arcata. Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  SEINET12270144  Orthocarpus imbricatus J. P. Tracy 1951-1 19562 Humboldt halfway between Snow Camp & Twin Lakes Comment
  HSC74434  Osmorhiza berteroi Gail Newton 1980-8-10 2064 Humboldt Near Blake Mtn. 1707 Comment
  HSC45577  Osmorhiza berteroi Diane L. Reed 1978-5-7 48 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  RSA430437  Osmorhiza berteroi Lyman Benson 1928-7-10 405 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  CHSC32846  Oxalis oregana Lora L. Anderson 1981-4-25 3 Humboldt Ca. 1/2 mi s of Redwood Creek, 4 mi n on Redwood Valley Rd. off hwy 299 w 16 mi ne of Arcata. 457 Comment
  HSC16703  Oxalis oregana D. E. Anderson 1961-8-11 1726 Humboldt E of Humboldt State University campus 30 Comment
  HSC47502  Oxalis oregana Sheila Logan 1978-4-10 28 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  SEINET3347657 Image available Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt Near Pepperwood Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  POM87947  Oxalis rubra L. R. Abrams 1922-6-25 8263 Humboldt Between Trinidad and Big Lagoon Comment
  UC1103418  Oxalis trilliifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16665 Humboldt near Grouse Mt. (Friday Ridge); Friday Ridge 1371 Comment
  CAS-BOT-BC318155  Packera bolanderi var. bolanderi LeRoy Abrams 1916-7-11 6009 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  POM204618  Panicum acuminatum var. acuminatum A. S. Hitchcock 1915-7-13 527 Humboldt Eureka Comment
  POM366049  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  CDA2139  Parapholis incurva Gordon Leppig, Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad Harbor, Trinidad. Comment
  SEINET182648 Image available Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, California Comment
  SEINET200959 Image available Parapholis incurva Joeseph P. Tracy 1937-6-5 15328 Humboldt Mouth of Little River. 3 Comment
  HSC39757  Parapholis strigosa Peter Sorensen 1976-7-11 Humboldt Woodley Island. Comment
  HSC12791  Parentucellia viscosa Jana Kattenhorn 1970-10-14 47 Humboldt Big Lagoon Comment
  UC526851  Paspalum distichum Joseph P. Tracy 1934-8-14 13581 Humboldt South Fork of Eel River, 1 mi above its mouth 60 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
  UC1713517  Pedicularis densiflora W. W. Price 1890-7-6 Humboldt Mad River Comment
  UC582555  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  RSA151842  Pedicularis racemosa Francia Chisaki, H. K. Sharsmith 1959-8-22 4754 Humboldt At Happy Camp adjacent to Douglas Fir Forest. Just over Trinity County line. 915 Comment
  UC1326266  Pedicularis racemosa Milo S. Baker 1947-8-10 11904 Humboldt along trail to Trinity Summit from end of Forest Road from Hoopa 1432 Comment
  CAS-BOT-BC67770  Pellaea andromedifolia Stuart K. Harris 1960-7-11 21651 Humboldt 3.8 miles west of Redwood on road to Briceland Comment
  HSC95881  Pellaea mucronata var. mucronata Will Ferrand 2002-4-28 41 Humboldt About 0.5 mi. S of intersection of Hwy. 299 and South Fork Trinity exit 259 Comment
  CHSC33041  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt The Lassics. Growing along east side of Red Lassic; beside rd. 1S07. 1676 Comment
  HSC44531  Penstemon anguineus Brad Klipfel 1973-7-1 139 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75553  Penstemon anguineus J. O. Sawyer, R. J. Cole 1977-7-3 3010 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC99467  Penstemon anguineus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 121 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC577404  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp; South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS26253  Penstemon anguineus Joseph P. Tracy 1940-7-7 16671 Humboldt Grouse Mt. 1524 Comment
  HSC56120  Penstemon deustus Gilbert Muth 1979-8-1 11898 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC76225  Penstemon laetus subsp. sagittatus Walter Overton, Marvin Butler 1979-7-24 9745 Humboldt Near Black Rock, close to the town of Willow Creek 1554 Comment
  UC162565  Penstemon laetus var. sagittatus Joseph P. Tracy 1911-7-6 3344 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges 762 Comment
  HSC56115  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11886 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC99527  Penstemon newberryi var. berryi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 191 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC21104  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  UC146246  Penstemon rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC184100  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS14205  Perideridia gairdneri subsp. gairdneri Joseph P. Tracy 1936-10-24 15204 Humboldt hillside 2 mi s Field's Landing; Northern Coast Region, <Region> around Humboldt Bay 9 Comment
  HSC32529  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1133 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1389971  Perideridia kelloggii T. I. Chuang, A. Weston, and I. Fukuda 1963-7-4 5877 Humboldt 1 mi s Klamath River (near Willow Creek) Comment
  UC183948  Perideridia kelloggii Joseph P. Tracy 1912-8-3 3967 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  SEINET13978219 Image available Petasites frigidus var. palmatus R. R. Halse 2016-1 9684 Humboldt Along US Hwy 101 ca. 9.6 mi S of Orick. 8 Comment
  UCD134922  Petasites frigidus var. palmatus K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  RSA183572  Petasites palmatus R. I. Bonn 1965-3-5 4 Humboldt 4 miles west of Arcata on Samoa Road. Comment
  HSC26590  Petrorhagia dubia D. E. Anderson 1973-4-20 Humboldt Flood plain of Eel River 5 mi. E of Founders Tree area, Avenue of the Giants Comment
  SEINET3119233 Image available Phacelia bolanderi Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15225 Humboldt Bolling Grove State Park. Comment
  JEPS57406  Phacelia corymbosa L. R. Heckard 1968-7-5 1986 Humboldt Mail Ridge rd 4.3 mi n Harris road Comment
  RSA249336  Phacelia corymbosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5621 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC91880  Phacelia malvifolia E. Mackey 1987-9-5 Humboldt Patrick's Point State Park, along the trail to the beach Comment
  HSC75548  Phacelia mutabilis J. O. Sawyer 1977-7-3 3014 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1222899  Phacelia mutabilis Joseph P. Tracy 1951-6-26 19564 Humboldt Snow Camp 1402 Comment
  RSA428107  Phacelia mutabilis Brad W. Klipfel 1973-7-1 143 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  UC922010  Phalaris californica Joseph P. Tracy 1938-6-7 15861 Humboldt n side of Mad River 1/2 mi e bridge on Arcata-Blue Lake highway; n side of Mad River 30 Comment
  CAS-BOT-BC250685  Phalaris paradoxa W. A. Silveus 1931-6-9 2990 Humboldt Dyerville Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  JEPS49596  Philadelphus lewisii W. L. Jepson 1902-7-29 2124 Humboldt Hupa Valley; along streams 243 Comment
  JEPS49602  Philadelphus lewisii Harley P. Chandler June, 1901 1523 Humboldt Sommes Bar North Coast Ranges, Klamath River 426 Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SEINET200857  Philadelphus lewisii subsp. gordonianus Joseph P. Tracy 1937-6-20 15355 Humboldt Bear River, ten miles upstream from the mouth. 152 Comment
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Oct 8 2018
  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
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  UCD89305  Phleum alpinum Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west slope of the Trinity Summit area. 1645 Comment
  RSA122919  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 miles northeast of Bald Mountain Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  UC1212579  Phlox adsurgens Francia Chisaki and Helen Sharsmith 1959-8-22 4755 Humboldt Happy Camp, just over line from Trinity County Inner North Coast Ranges 914 Comment
  HSC72818  Phlox diffusa M. A. Baker 1980-6-16 1943 Humboldt Near Onion Mtn. 1280 Comment
  UC1198559  Phlox gracilis Joseph P. Tracy 1932-4-24 9824 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  POM210091  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC140584  Physocarpus capitatus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC249641  Physocarpus capitatus Joseph P. Tracy 1922-9-3 6110 Humboldt Klamath River at Bluff Creek 91 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
  UC1198275  Picea sitchensis Joseph P. Tracy 1930-9-28 9197 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC136  Picea sitchensis J. P. Tracy 1901-4-17 Humboldt Samoa, Humboldt Bay Comment
  RSA0116907  Picea sitchensis Lyman Benson 1949-9-4 14188 Humboldt Bishop Pine Lodge, 5 miles North of Trinidad. Mt. Range: North Coast Ranges. 15 Comment
  HSC104094  Pinguicula macroceras Monica Rodriguez, William A. Worley 2015-3-21 25 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  CAS-BOT-BC78380  Pinus contorta W. R. D. 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA384301  Pinus contorta var. contorta E. A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata. Comment
  UCD134418  Pinus contorta var. contorta Linda M. Barker 1976-7-5 1641 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  OBI36538  Pinus jeffreyi David J. Keil 1983-7-2 17315 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll rd below Horse Mtn Summit Rd Comment
  CAS-BOT-BC73115  Pinus lambertiana Doris K. Kildale 1928-10-7 6755 Humboldt Willow Creek Canyon, 7 miles from Willow Creek. Comment
  HSC72826  Pinus monticola Gail Newton 1980-6-16 192 Humboldt Near Onion Mtn. 1280 Comment
  HSC82621  Pinus monticola Thomas W. Nelson 1979-7-11 5006 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC79027  Pinus ponderosa Doris K. Kildale 1928-7-1 5314 Humboldt Klamath River at Orleans Comment
  UC1196426  Piperia transversa Edith and Ethel Tracy 1900-7-31 909 Humboldt opposite Eureka; Samoa, Ocean Beach Comment
  CAS-BOT-BC169835  Plagiobothrys Doris K. Kildale 1929-4-27 7450 Humboldt Willow Creek - Salya road along Trinity River. 3 miles N of Willow Comment
  UC582610  Plagiobothrys bracteatus Joseph P. Tracy 1936-6-3 14842 Humboldt opposite mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  HSC3633  Plagiobothrys nothofulvus Elrid H. Spinas 1948-5-15 5 Humboldt Horse Mtn. Comment
  UC175581  Plagiobothrys nothofulvus Mrs. M. H. Manning 1902-4-14 Humboldt near Hupa Comment
  UC179943  Plagiobothrys reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  HSC33750  Plantago erecta A. Montalvo 1975-5-24 282 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC62991  Plantago lanceolata David Wheeler 1979-4-23 83 Humboldt N end of Heindon Rd. at turn-around Comment
  UCD124617  Plantago lanceolata Gary Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  UC1116244  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD124527  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill. 6 miles SE of Arcata. 609 Comment
  HSC104059  Platystemon californicus M. F. Norman 2015-4-11 19 Humboldt Arcata, Ma-le'l Dunes Comment
  JEPS4804  Plectritis brachystemon Joseph P. Tracy 1936-5-29 14823 1/2 Humboldt French Camp Ridge 1066 Comment
  UC1239603  Plectritis congesta Joseph P. Tracy 1933-5-19 12199 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  SJSU16005  Pleuropogon refractus John Rawlings 2016-5-19 1802 Humboldt James Irvine Trail between the lower trailhead and the Fern Canyon turnoff, Prairie Creek Redwoods State Park 22 Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  HSC91883  Poa annua E. Mackey 1987-3-1 Humboldt Patrick's Point State Park. Comment
  UC1145120  Poa bolanderi Joseph P. Tracy 1937-7-29 15581 Humboldt near McKay camp South Fork Mt 1676 Comment
  HSC99416  Poa bulbosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 65 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
  UC1103177  Poa douglasii Joseph P. Tracy 1932-5-10 9943 Humboldt s point of the Cape Cape Mendocino Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  HSC10718  Poa howellii J. P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie. Comment
  UC180506  Poa howellii Joseph P. Tracy 1913-6-20 4243 Humboldt lower foothills of Buck Mt (nw slope); Northern Coast Ranges 762 Comment
  UC60806  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5359 B Humboldt near Harris Harris Comment
  CAS-BOT-BC254281  Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  HSC38923  Poa macrantha Linda M. Barker 1976-5-13 1491 Humboldt 3 mi. W of Arcata. Comment
  SEINET183546 Image available Poa macrantha Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-9 15073 Humboldt Clam Beach 15 miles north of Eureka Comment
  HSC26535  Poa pratensis J. P. Smith 1971-10-9 5001 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UCD91937  Poa pratensis A. Murphy 1951-5-18 s.n. Humboldt W. Roscoe Ranch, Upper Mattole, near Mattole River. Comment
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  SEINET7854859  Poa secunda subsp. juncifolia J. B. Davy 1899-1 5658 Humboldt Hoopa Summit. Comment
  UC1103178  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad, bluffs facing ocean Trinidad; Northern Coast Region 60 Comment
  JEPS62463  Pogogyne serpylloides Joseph P. Tracy 1921-6-12 5829 Humboldt Butler Valley 152 Comment
  HSC17210  Polemonium carneum J. Wendell Howe 5 May [year missing] Humboldt Big Lagoon Comment
  UC162581  Polemonium carneum Ethel Tracy 1911-6-18 Humboldt near Big Lagoon; Northern Coast Ranges, near Big Lagoon 30 Comment
  HSC17225  Polygala californica J. Wendell Howe 11 May [year missing] Humboldt Kneeland Comment
  HSC99257  Polygala californica D. E. Anderson 1965-5-1 3570 Humboldt Along Bluff Creek Rd., 2 mi. from its junction with Hwy. 96 Comment
  UC1198990  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-6 3348 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA152547  Polygonum kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  RSA275282  Polygonum kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt [Unspecified] 1616 Comment
  HSC55125  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 11929 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC109183  Polygonum paronychia Greg de Nevers 2001-4-18 12252 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  UC146160  Polygonum parryi Joseph P. Tracy 1908-6 2722 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  HSC99101  Polygonum polystachyum Cara Witte 2007-6-12 244 Humboldt Intersection of 4N70 and 4N32. Intersection to Grouse Mountain Lookout. 1628 Comment
  UC1052469  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 Comment
  HSC98633  Polygonum spergulariiforme Cara Witte 2008-8-5 983 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  RSA53825  Polygonum spergulariiforme H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  RSA689951  Polypodium californicum Charlotte M. Hoak 1936-8-15 104 Humboldt Patricks Point Comment
  SDSU19201  Polypodium calirhiza Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3015 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.7 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 963 Comment
  HSC1126  Polypodium glycyrrhiza R. D. Zortman 1963-5-5 35 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC100121  Polypodium glycyrrhiza Margaret Weatherwax 1975-6-26 7 Humboldt Road from Korbel to Maple Creek, 2 mi. SW of Korbel Comment
  HSC1109  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-12 8 Humboldt 150 yards from mouth of E creek leading into the HSC reservoir 61 Comment
  RSA10020  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka. 0 Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  UC163618  Polypogon interruptus Jos. Burtt Davy and W. C. Blasdale 1899-5 5495 Humboldt Pepperwood Comment
  UCD51646  Polypogon interruptus P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia, by road through redwoods of highway. Comment
  HSC38920  Polypogon monspeliensis Linda M. Barker 1976-6-1 1552 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC906712  Polystichum Harold E. Parks and Joseph P. Tracy 1942-5-16 11547 Humboldt half way between Miranda and Garberville 152 Comment
  HSC74744  Polystichum imbricans Gail Newton 1981-8-7 2425 Humboldt Near Bug Creek Butte 1244 Comment
  HSC76326  Polystichum imbricans Denis Kearns 1981-7-21 296 Humboldt Near Whiteys Peak 1585 Comment
  HSC98734  Polystichum imbricans subsp. imbricans Cara Witte 2007-7-25 583 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  HSC13042  Polystichum munitum T. C. DeCew 1970-11-14 35 Humboldt HSU Campus Comment
  SDSU276  Polystichum munitum D. R Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  HSC79147  Polystichum munitum C. J. Thomas 1984-9-25 119 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  SEINET11719548  Polystichum munitum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -292 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC13800  Populus trichocarpa Steve Dorei 1970-10-13 41 Humboldt HSU campus, S side of Forestry Bldg. Comment
  UC668002  Populus trichocarpa Joseph P. Tracy 1938-11-26 16177 Humboldt on South Fork of Eel River between Miranda and Redway Sylvandale; North Coast Ranges, on South Fork of Eel River 91 Comment
  HSC17777  Potamogeton foliosus J. P. Tracy 1934-8-14 13588 Humboldt S Fork of Eel River, midway between Miranda and Garberville 91 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
  HSC18730  Potentilla anserina subsp. pacifica J. F. Knezevich 1967-5-23 453 Humboldt N of Trinidad at Big Lagoon 15 Comment
  HSC18733  Potentilla anserina subsp. pacifica W. R. Brigham 1962-5-19 13 Humboldt S of Big Lagoon. Comment
  HSC62830  Potentilla anserina subsp. pacifica J. M. DiTomaso 1979-4-21 883 Humboldt Clam Beach Comment
  HSC97614  Potentilla glandulosa subsp. glandulosa Cara Witte 2007-5-31 156 Humboldt Along National Forest Route 1. Near Kinsey Ridge. 1.25 miles north of intersection with 4N09. 1308 Comment
  RSA12434  Potentilla gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 miles from Bald Mt. on road to Snow Camp 915 Comment
  HSC75969  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12596 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET2474968 Image available Potentilla palustris var. villosa Joseph P. Tracy 1923-6-17 6276 Humboldt Big Lagoon 10 Comment
  SBBG979  Prosartes hookeri H. and M. Dearing 1933-5-16 253 Humboldt Weott Comment
  HSC49800  Prosartes smithii R. York 1979-4-9 214 Humboldt Behind HSU campus, by trail Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  JEPS44945  Prunus emarginata Joseph P. Tracy 1924-5-25 6685 Humboldt on Big Lagoon Prairie, Big Lagoon Big Lagoon Prairie; Northern Coast Region, Big Lagoon, Big Lagoon Prairie 6 Comment
  RSA43864  Prunus virginiana var. demissa H. M. Pollard 1948-8-12 s.n. Humboldt Orleans Comment
  UC1198780  Prunus virginiana var. demissa Joseph P. Tracy 1926-10-14 7814 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC40252  Pseudognaphalium stramineum Linda M. Barker 1976-8-24 1685 Humboldt 3 mi. W of Arcata Comment
  HSC79536  Pseudognaphalium stramineum Kenneth Clark 1979-7-1 455 Humboldt Dead Man's Gulch 9 Comment
  CAS-BOT-BC357605  Pseudognaphalium stramineum L. R. Abrams 1922-6-25 8223 Humboldt 6 mi north of Garberville Comment
  UC165750  Pseudognaphalium stramineum Joseph P. Tracy 1909-9-19 3089 Humboldt sand dunes of ocean beach at Humboldt Bay Humboldt Bay Comment
  UC31991  Pseudognaphalium stramineum C. C. Marshall 1888-1 Humboldt Comment
  UC1222911  Psilocarphus oregonus Joseph P. Tracy 1949-8-11 18479 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek); Kinsey Ridge 1402 Comment
  CAS-BOT-BC460602  Pyrola aphylla Doris Kildale 1931-5-24 10846 Humboldt Little Laribee, Laribee Valley Comment
  POM209002  Pyrola bracteata Lincoln Constance 1934-6-8 835 Humboldt Cow Cr. fire-trail, Bull Cr. watershed, Humboldt Redwood Park. 457 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 Comment
  UC1193294  Quercus chrysolepis R. H. Neuns 1950-10-12 140 Humboldt Queens Peak 701 Comment
  CAS-BOT-BC94311  Quercus garryana Doris K. Kildale 1926-8-22 2571 Humboldt Bald Hills 716 Comment
  CAS-BOT-BC94313  Quercus garryana Doris K. Kildale 1928-7-1 5666 Humboldt Klamath River at Bluff Creek Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC105165  Quercus kelloggii Doris K. Kildale 1928-3-31 4384 Humboldt 3 miles N of Gaberville on Redwood Highway Comment
  HSC102199  Quercus sadleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1113 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC1196513  Quercus sadleriana Joseph P. Tracy 1932-7-15 10579 Humboldt near Corral Prairie; Klamath Mountains 1524 Comment
  SBBG115525  Quercus sadleriana G. J. Muth 1972-8-15 1845 Humboldt near Big Hill Rd 1431 Comment
  HSC41330  Quercus vacciniifolia Brad Klipfel 1974-9-17 573 Humboldt Horse Mtn. Comment
  UC1196538  Quercus vacciniifolia Joseph P. Tracy 1934-6-27 11044 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  CAS-BOT-BC104664  Quercus wislizeni J. G. Lemmon 1904-1-1 s.n. Humboldt Eel River Comment
  CAS-BOT-BC539321  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi from Garberville along Alderpoint Rd near the jct with Hwy 36; stop #6 215 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC379198  Ranunculus aquatilis var. aquatilis C. C. Harris; S. K. Harris 1936-6-12 3363 Humboldt open woods, prairies and ledges on Chalk Mountain near Bridgeville Comment
  UC118293  Ranunculus aquatilis var. hispidulus W. W. Price 1890-6-30 Humboldt Jarnigans Comment
  UC13903  Ranunculus aquatilis var. hispidulus W. C. Blasdale 1896-6-7 Humboldt Grahams Comment
  UC184009  Ranunculus californicus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3612 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS5880  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt near Bosworth's; Larrabee Creek 365 Comment
  POM269620  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-5-30 15312 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  HSC71029  Ranunculus occidentalis Thomas W. Nelson 1977-4-20 3321 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  HSC18170  Ranunculus occidentalis var. occidentalis Francis Winter 1960-4-23 Humboldt 1.0 mi. N of Dollar Ranch on Korbel-Maple Creek Rd. 229 Comment
  HSC39588  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, James Nelson 1976-6-22 2807 Humboldt Around Senteney Rock 1524 Comment
  UC1196245  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1933-7-11 12701 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1103015  Ranunculus parviflorus Harry B. Tucker 1933-6-13 Humboldt near Ferndale 15 Comment
  UC503047  Ranunculus parviflorus Joseph P. Tracy 1927-5-21 8067 Humboldt Carlotta Northern Coast Ranges (roadside) 60 Comment
  UC1196260  Ranunculus pusillus Joseph P. Tracy 1935-5-25 13845 Humboldt Fort Seward 106 Comment
  POM149011  Ranunculus pusillus Joseph P. Tracy 1903-5-24 s.n. Humboldt At Alder Point on Eel River. 152 Comment
  HSC18186  Ranunculus repens var. repens R. D. Modafferi 1965-5-9 55 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  JEPS41990  Rhamnus californica W. L. Jepson 1932-8-8 16480 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
Read comments
Jan 17 2008
  POM246499  Rhamnus californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter cove. 61 Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  SBBG5560  Rhododendron occidentale H. and M. Dearing 1933-5-17 1244 Humboldt N of Big Lagoon Comment
  CAS-BOT-BC200390  Rhododendron occidentale var. paludosum Carl B. Wolf 1927-8-28 1174 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  UC199535  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  CAS-BOT-BC433130  Ribes Doris K. Kildale 1927-5-15 3298 Humboldt Petrolia Comment
  HSC40801  Ribes binominatum Thomas W. Nelson 1976-7-9 2972 Humboldt W side of Red Lassic 1707 Comment
  CAS-BOT-BC108908  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-14 1532 Humboldt Blue Slide - on Van Duzen River. Comment
  HSC99025  Ribes lacustre Cara Witte 2008-7-1 781 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 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
  UC1198924  Ribes lobbii Joseph P. Tracy 1942-6-23 17249 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC1541330  Ribes lobbii J. P. Tracy July 1933 Humboldt Horse Mountain Comment
  HSC20309  Ribes menziesii M. L. Stuart 1965-5-6 64 Humboldt Fern Lake Dam Comment
  HSC20311  Ribes menziesii J. L. Baker 1965-4-24 33 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC47493  Ribes menziesii Sheila Logan 1978-4-9 17 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  SJSU7838  Ribes menziesii R. D. Spadoni 1965-3-26 108 Humboldt Trinidad Comment
  HSC74339  Ribes roezlii M. A. Baker 1980-5-18 1290 Humboldt Near Black Mtn. 1006 Comment
  HSC74469  Ribes roezlii Gail Newton 1980-7-23 1719 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1222372  Ribes roezlii Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge Comment
  BLMAR391  Ribes roezlii var. cruentum Jennifer Wheeler 2005-4-22 391 Humboldt Lacks Creek, Near road just befor 100 acre field 853 Comment
  UCR45437  Ribes roezlii var. cruentum Kenneth Clark 1980-6-14 691 Humboldt Above N Fork Dead Man's Gulch 229 Comment
  UC1198915 Image available Ribes sanguineum Joseph P. Tracy 1933-8-30 13059 Humboldt near Rnager's Lookout; Grouse Mountain 1615 Comment
  UC902056 Image available Ribes sanguineum Joseph P. Tracy 1942-6-23 17238 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC144685  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick Comment
  RSA0018245  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside the Eel River just north of the terminus of Singley Rd. Comment
  CDA25591  Ribes viscosissimum Gordon Leppig 1998-6-1 865 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC13750  Romanzoffia californica Doris K. Kildale 1926-3-21 1574 Humboldt Kneeland Prairie Comment
  HSC13753  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2870 Humboldt 3 mi. E of E Fork of Willow Creek Comment
  HSC73175  Romanzoffia californica M. A. Baker 1980-5-17 1250 Humboldt Near Le Perron Peak 1066 Comment
  HSC56123  Romanzoffia sitchensis G. L. Clifton, Griswold 1979-8-1 11910 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1222364  Romanzoffia tracyi Joseph P. Tracy 1950-6-17 18829 Humboldt in <Tracy> garden Eureka Comment
  HSC58652  Rorippa curvisiliqua G. L. Clifton, Terry Griswold 1979-7-31 11719 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  CAS-BOT-BC146484  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt Trinity Summit, 2 miles southeast of Devil's Hole 1584 Comment
  CAS-BOT-BC146485  Rosa gymnocarpa Carl D. Duncan 1920-9-1 s.n. Humboldt Hoopa Comment
  UC154526  Rosa gymnocarpa Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa Comment
  HSC98692  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-15 751 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  CAS-BOT-BC146832  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4768 Humboldt Near Dinsmore's Comment
  CAS-BOT-BC146840  Rosa nutkana Volney Rattan 1878-1-1 s.n. Humboldt Mad River Comment
  RSA22642  Rosa nutkana H. E. Parks, Susan T. Parks 1937-06 24021 Humboldt Spruce Cove, Trinidad. Comment
  POM275415  Rosa pinetorum Lyman D. Benson 1928-7-12 s.n. Humboldt Clam Beach, Trinidad. 15 Comment
  CAS-BOT-BC146499  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17889 Humboldt Trinity Summit, near Box Camp 1524 Comment
  HSC49684  Rosa pisocarpa J. O. Sawyer, R. J. Cole 1977-7-3 3018 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  UC154494  Rosa pisocarpa Harley P. Chandler June 1901 1544 Humboldt Klamath River North Coast Ranges 457 Comment
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UCD17678  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-3 53 65 Humboldt California. Humboldt County: Redwood Highway, on road to Williams Grove along Eel River. 6.3 miles north of Miranda. Comment
  UCD89725  Rubus fruticosus Lindsay Clark 2008-6-23 KRC 1 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 551 Comment
  CAS-BOT-BC148383  Rubus leucodermis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC100636  Rubus leucodermis Carl C. Marshall May 1885 78 Humboldt Liscom's Hill. Comment
  UCD113800  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two miles west of Harris Post Office. 853 Comment
  CAS-BOT-BC147243  Rubus parviflorus Doris K. Kildale 1926-5-14 3196 Humboldt Big Lagoon Comment
  HSC97621  Rubus parviflorus Cara Witte 2007-6-5 212 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  UCD20671  Rubus parviflorus A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, near Redwood Park. Comment
  POM117571  Rubus parviflorus var. velutinus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1541464  Rubus praecox H. E. Parks April 1935 5537 Humboldt Trinidad Comment
  CAS-BOT-BC156720  Rubus spectabilis W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook - Eel River Comment
  UCD150631  Rubus spectabilis Wayne Padgett 1974-5-25 65 Humboldt Two miles S of Patrick's Point State Park on coast road. Comment
  BLMAR182  Rubus ursinus Donald Hazlett 1994-6-7 182 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC467855  Rubus ursinus Joseph Burtt Davy and Walter C. Blasdale 1899-5 5401 Humboldt Hubbards Station Hubbards Station (nw California) Comment
  CHSC1353  Rumex acetosella M. Underhill 1952-7-14 Humboldt 30 Comment
  HSC17585  Rumex acetosella P. W. Shields 1955-6-10 Humboldt HSC campus Comment
  UC1541400  Rumex acetosella W. K. Parks Apr 1934 5279 Humboldt Spruce Cove Trinidad Comment
  HSC17578  Rumex acetosella Allan R. Marshall 1962-5-22 30 Humboldt Back of Wildlife Building, HSU campus 30 Comment
  HSC17582  Rumex acetosella F. Morrell 1949-5-14 23 Humboldt Hoopa Comment
  HSC33748  Rumex acetosella A. Montalvo 1975-5-24 278 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UCR123958  Rumex crispus George K. Helmkamp, E. A. Helmkamp 2001-7-8 6984 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
  HSC60366  Rumex crispus Terry Roth 1979-5-26 87 Humboldt Near jct. of Sunset Ave. and H St., Arcata Comment
  UC672926  Rumex occidentalis Joseph P. Tracy 1932-7-20 10730 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CDA2887  Rumex pulcher T. C. Fuller 1958-6-17 589 -58 Humboldt Hydesville. 0 Comment
  UCD92347  Rytidosperma penicillatum B. A. Madson 1938-8-5 s.n. Humboldt Loleta (coast). Comment
  UC668106  Sagina apetala Joseph P. Tracy 1933-3-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  JEPS12968  Salix exigua Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  SD990  Salix exigua var. hindsiana Harold E. Parks 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 89 Comment
  CAS-BOT-BC104103  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC106851  Salix hookeriana Harold E. Parks 1931-5-12 0953 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107713  Salix hookeriana Doris K. Kildale 1927-3-25 3003 Humboldt Near Buckspot School House 50 Comment
  CAS-BOT-BC107729  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107770  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1225 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC19954  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Trinidad, Little River Lagoon 0 Comment
  UC1222300  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, foothills of Cape Ridge); , Cape Ridge 60 Comment
  UC1225775  Salix hookeriana Joseph P. Tracy 1948-4-4 17957 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225926  Salix hookeriana Joseph P. Tracy 1947-6-28 17754 Humboldt Bridgeville Van Duzen River 198 Comment
  UC469114  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC490466  Salix hookeriana Joseph P. Tracy 1932-9-10 10767 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC492337  Salix hookeriana Harold E. and Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Trinidad (<place> from which No. 01000...was taken) Comment
  UC512078  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1226 Humboldt 1 mi n Samoa (pine barrens near coast, r.r right-of-way) Comment
  UC512082  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1223 Humboldt 1 mi n Samoa (pine barrens near the coast) 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
  UC512099  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 b Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  POM219559  Salix hookeriana var. tomentosa H. E. Parks 1931-3-26 905 Humboldt Alton on Van Duzen River. 15 Comment
  UC1173603  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC490518  Salix laevigata Joseph P. Tracy 1932-5-1 9880 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  HSC19984  Salix lasiandra H. E. Parks, S. T. Parks 1932-4-16 1099 Humboldt Near Ferndale on the Eel River delta Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  CAS-BOT-BC107581  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1255 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  HSC99119  Salix lasiolepis Cara Witte 2008-6-13 726 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  JEPS12967  Salix lasiolepis Joseph P. Tracy 1931-9-26 9696 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  UC1222296  Salix lasiolepis Joseph P. Tracy 1950-4-20 18623 Humboldt gravel bar in river 10 mi se Dinsmore's (about 4 mi se of Kuntz); Van Duzen River Comment
  UC469409  Salix lasiolepis Joseph P. Tracy 1927-3-27 7870 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC471107  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC504022  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC504025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UC506394  Salix lasiolepis Joseph P. Tracy 1932-6-19 10244 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope, in gully) 762 Comment
  UC506506  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CHSC9644  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1015 Humboldt South fork of Trinity River on Hwy 299 at Sayler. 487 Comment
  JEPS12936  Salix melanopsis Joseph P. Tracy 1931-5-3 9344 Humboldt Mad River near Blue Lake; Northern Coast Region 15 Comment
  JEPS14848  Salix melanopsis Lincoln Constance 1934-5-27 688 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  LA208878  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  LA208879  Salix melanopsis Mrs. H. P. Bracelin; 1931-5-2 283 Humboldt E of Redwood Hwy.; 6 km. S of Alton 20.0 Comment
  SBBG57922  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC129208  Salix piperi Doris K. Kildale 1928-3-27 4359 Humboldt Freshwater Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  POM219695  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge. Van Duzen River. 450 Comment
  CAS-BOT-BC129000  Salix sitchensis Harold E. Parks 1931-5-28 1026 Humboldt Little River Lagoon, at sea level. Comment
  HSC20101  Salix sitchensis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-13 1256 Humboldt Mad River at Engelhart gravel pit, 2 mi. E of Redwood Hwy. and above Blue Lake Rd. Comment
  HSC38135  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3280 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC38145  Salix sitchensis Thomas W. Nelson 1976-11-3 3279 Humboldt Eureka, E side of F St., 3800 block Comment
  UC203992  Salix sitchensis Joseph P. Tracy 1918-4-13 4869 Humboldt Jacoby Creek Quarry; Northern Coast Ranges, Jacoby Creek Quarry 91 Comment
  UC490501  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  CAS-BOT-BC235016  Sambucus Volney Rattan 1878-1-1 s.n. Humboldt 3 mi. E Eureka Comment
  POM284213  Sambucus caerulea Lyman Benson 1928-7-12 490 Humboldt Weott Ranger Station 91 Comment
  RSA1255  Sambucus callicarpa B. D. Stark 1929-7-24 1388 Humboldt 2 miles north of Arcata 30 Comment
  HSC36228  Sambucus racemosa var. racemosa John Rehling 1975-4-21 53 Humboldt Along Jolly Giant Creek behind HSU campus. Comment
  HSC37856  Sambucus racemosa var. racemosa Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  HSC47490  Sambucus racemosa var. racemosa Sheila Logan 1978-4-9 13 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC74427  Sambucus racemosa var. racemosa Gail Newton 1980-8-10 2056 Humboldt Near Blake Mtn. 1707 Comment
  UC28611  Sambucus racemosa var. racemosa J. P. Tracy 1899-5-1 296 Humboldt Eureka Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  UC902070  Sambucus racemosa var. racemosa Joseph P. Tracy 1949-7-25 18399 Humboldt Trinidad 3 Comment
  UCSB25080  Sambucus racemosa var. racemosa Keefe, Joseph 1967-7-8 Humboldt Juntion Crannell Road and Little River Drive, north of Eureka 6 Comment
  HSC37578  Sanicula arctopoides J. D. Ackerman 1975-6-10 448 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  UC1197114  Sanicula arctopoides Joseph P. Tracy 1918-4-7 4860 Humboldt mouth of Strawberry Creek, Dow's Prairie, Northern Coast Ranges Strawberry Creek; Northern Coast Ranges, , Dow's Prairie 6 Comment
  UC205466  Sanicula arctopoides Joseph P. Tracy 1919-4-27 5136 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC223252  Sanicula bipinnatifida M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC77963  Sanicula crassicaulis L. P. Janeway, Paul Wilson 1984-5-7 762 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 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
  HSC55720  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10168 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC56221  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-8-2 12249 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCR39790  Sanicula graveolens D. K. Imper 1982-7-2 s.n. Humboldt Six Rivers Nat. Forest, near Lassics Lookout, l mi. north of FS 2S08 on spur 1529 Comment
  UC1197094  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1197084  Sanicula laciniata Joseph P. Tracy 1925-3-29 6950 Humboldt Northern Coast Ranges, South Fork of Eel River, Miranda South Fork Eel River; Northern Coast Ranges, , Miranda 91 Comment
  HSC69867  Sanicula tuberosa Thomas W. Nelson 1978-5-28 4095 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC642316  Sanicula tuberosa Joseph P. Tracy 1933-6-13 12568 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  SEINET13945256 Image available Sanicula tuberosa R. K. Gierisch, D. H. Esplin 1969-1 3531 Humboldt Six Rivers, Grouse Mtn, Sec 36, T5N, R4E. Alt 5200. NW 5% Comment
  HSC32275  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5629 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC1198884  Saxifraga marshallii Joseph P. Tracy 1924-4-27 6644 Humboldt Willow Creek Canyon, East Fork of Willow Creek Willow Creek Canyon; Northern Coast Ranges, , Willow Creek 457 Comment
  UC1988888  Saxifraga mertensiana Joseph P. Tracy 1927-3-27 7854 Humboldt near South Fork (Trinity River Valley along river); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC673256  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  SEINET6168250  Saxifraga mertensiana J. P. Tracy 1911-6-4 3217 Humboldt Northern coast region, along Little River, 5 miles from the coast 122 Comment
  UC183569  Saxifraga nidifica var. nidifica Joseph P. Tracy 1913-6-17 4178 Humboldt near summit of Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  RSA53822  Schoenoplectus tabernaemontani Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UC183949  Scirpus maritimus Joseph P. Tracy 1909-9-19 3099 Humboldt Samoa Northern Coast Region, region about Humboldt Bay, Samoa 0 Comment
  HSC7462  Scirpus microcarpus J. R. Kahl 1962-5-4 27 Humboldt 3 mi. S of Trinidad along old Hwy. 101 Comment
  SEINET4178878 Image available Scirpus pungens R. U. Hart 1946-6-7 Humboldt Pond W. of Centerville, 4 mi. W. of Ferndale on the S. side of the mouth of the Eel River Valley Comment
  UC668005  Scirpus tabernaemontani H. E. Parks and Joseph P. Tracy 1931-5-17 9421 Humboldt Lack Pond Trinity River Valley, Lack Pond (opposite Willow Creek) 152 Comment
  SEINET4673868  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood.; 0 76 Comment
  UC1197793  Scoliopus bigelovii Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC517412  Scoliopus bigelovii Leo Shapovalov; C. Woodhull 1940-3-6 s.n. Humboldt Redwood Creek near Garberville in Humboldt Redwood State Park Comment
  HSC21128  Scrophularia californica C. B. Wolf 1927-8-29 1207 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC21129  Scrophularia californica D. E. Anderson 1961-8-11 1734 Humboldt Redwood preserve E of HSU campus 30 Comment
  RSA475245  Scrophularia californica Lyman D. Benson 1938-7-11 385 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  UCD170580  Scrophularia californica Gordon Leppig 1998-4-14 739 Humboldt McKinleyville, Central Ave. south-bound lane near 101 junction. 42 Comment
  UC577337  Scutellaria antirrhinoides Harold E. Parks and Joseph P. Tracy 1934-6-27 11061 Humboldt Grouse Mountain 1432 Comment
  SEINET7718229  Scutellaria antirrhinoides Chesnut, Drew Humboldt Campbell's Comment
  RSA178561  Sedum divergens Joseph P. Tracy 1950-8-8 19294 Humboldt Croghan Hole, on Trinity Summit Comment
  HSC99534  Sedum laxum subsp. flavidum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 199 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  HSC70891  Sedum laxum subsp. heckneri Gail Newton 1980-7-23 1707 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC74194  Sedum laxum subsp. heckneri M. A. Baker 1980-7-24 3198 Humboldt Near Orleans Mtn. 1625 Comment
  JEPS47745  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  UC667083  Sedum laxum subsp. heckneri Harold E. Parks and Joseph P. Tracy 1934-6-27 11064 Humboldt Grouse Mt. 1432 Comment
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Aug 17 2011
  HSC57996  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11759 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC98528  Sedum spathulifolium Cara Witte 2007-6-7 222 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  UC205171  Sedum spathulifolium Harley P. Chandler June, 1901 1379 b Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC63828  Sedum spathulifolium W. R. Dudley 1899-6-1 s.n. Humboldt Vicinity of Scotia Comment
  RSA0104953  Sedum spathulifolium Joseph P. Tracy 1950-6-8 18715 Humboldt Bluffs at the Sand Cut. Wild Cat Rd. 2 miles S of Ferndale. 305 Comment
  UC1198829  Sedum spathulifolium Joseph P. Tracy 1913-6-26 4347 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Buck Mountain 762 Comment
  UC1776736  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt in redwood forest behind Humboldt State Universiy, at base of stump near Fern Lake spillway Arcata 48 Comment
  UC249773  Selaginella wallacei Joseph P. Tracy 1924-3-9 6607 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CDA8588  Senecio bolanderi var. bolanderi Gordon Leppig, M. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Road, Hely Creek watershed. Comment
  SBBG62728  Senecio hydrophilus R. Hartwell 1938-8-6 113 Humboldt near Eureka Comment
  HSC74376  Senecio integerrimus M. A. Baker 1980-6-28 2481 Humboldt Near Mad River Buttes 1445 Comment
  SEINET11803188  Senecio integerrimus var. major J. P. Tracy 1946-1 17537 Humboldt Kneeland Prairie 762 Comment
  UC205168  Senecio minimus Joseph P. Tracy 1919-8-31 5185 Humboldt Eureka 0 Comment
  HSC74692  Senecio sylvaticus Gail Newton 1981-7-22 2266 Humboldt Near Bug Creek 1375 Comment
  RSA168840  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  UCD92863  Setaria viridis A. H. Murphy 1948-9-1 s.n. Humboldt Cottral Ranch, Table Bluff. Comment
  JEPS12497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Prairie; Bull Creek Comment
  JEPS12498  Sherardia arvensis W. L. Jepson 1902-6 1936 Humboldt above Korbel Comment
  UC1541655  Sherardia arvensis Harold E. Parks Jun 1935 4995 Humboldt Trinidad; Spruce Cove Comment
  UC602551  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  HSC79421  Sherardia arvensis Kenneth Clark 1980-4-18 598 Humboldt Above Dead Man's Gulch 183 Comment
  UC180183  Sidalcea diploscypha Joseph P. Tracy 1914-5-14 4466 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  JEPS79984  Sidalcea diploscypha Joseph P. Tracy 1927-5-30 8087 Humboldt Briceland; Northern Coast Ranges 182 Comment
  UC18874  Sidalcea diploscypha C. C. Marshall 1888-1 Humboldt Comment
  UC1121977  Sidalcea malachroides R. Stahelin 1933-5-15 19520 Humboldt T. P. L. Co. Eureka Quad. (Freshwater) Comment
  UC1121978  Sidalcea malachroides H. L. Person 1932-7-18 19483 Humboldt Freshwater Eureka Quad. Comment
  UC203995  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  UCR133553  Sidalcea malachroides Jos. Burtt Davy, Walter C. Blasdale 1899-6-13 5462 Humboldt Camp Grant 49 Comment
  HSC73172  Sidalcea malviflora M. A. Baker 1980-5-18 1350 Humboldt Near Black Mtn. 792 Comment
  HSC16014  Sidalcea malviflora F. B. Plett 1963-5-15 46 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  UC146163  Sidalcea malviflora subsp. patula J. P. Tracy 1905-6-11 2194 Humboldt immediate vicinity Eureka (at Buckport); immediate vicinity of Eureka, at Bucksport 0 Comment
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC23746  Sidalcea oregana Tim Baroni 1971-7-6 120 Humboldt 10 mi. S of Ferndale on Mattole Rd. Comment
  UC205642  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay Comment
  HSC82112  Silene bolanderi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5256 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC103771  Silene bolanderi M. R. Mesler 2014-6-4 1633 Humboldt Burr Valley Road near Dinsmore 1014 Comment
  POM264848  Silene californica Lincoln Constance, A. A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton. Comment
  HSC98675  Silene campanulata subsp. glandulosa Cara Witte 2007-6-26 353 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  UC183591  Silene campanulata subsp. glandulosa Joseph P. Tracy 1913-6-15 4140 Humboldt near summit of ridge between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Ranges, btw Van Duzen and Mad Rivers 1066 Comment
  UC161034  Silene gallica Joseph P. Tracy 1904-7-24 2124 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC4188  Silene gallica J. E. Lankila 1962-5-14 23 Humboldt W bank of river at Fernbridge Comment
  HSC62895  Silene gallica J. M. DiTomaso 1979-5-20 1053 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  CHSC63389  Silene grayi Vernon H. Oswald 1994-6-29 6360 Humboldt Titlow Hill Rd. (Forest Rd. 1) 5.6 mi S of Hwy. 299, S of Willow Creek. 1469 Comment
  UC14434  Silene hookeri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  CAS-BOT-BC181242  Silene hookeri subsp. bolanderi Lincoln Constance; Alan A. Beetle 1940-5-17 2612 Humboldt McClellan Mountain, near Eureka 822 Comment
  CAS-BOT-BC389068  Silene laciniata subsp. californica M. S. Jussel 1931-5-2 s.n. Humboldt 26 miles N. of Garberville Comment
  HSC43853  Silene laciniata subsp. californica Maralyn O'Meara 1974-7-17 551 Humboldt Kneeland Comment
  HSC56422  Silene laciniata subsp. californica Griswold, Butler 1979-7-10 7104 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC4219  Silene lemmonii J. P. Tracy 1932-7-12 10452 Humboldt Trinity Summit, near Corral Prairie 1585 Comment
  UC1198790  Sisymbrium altissimum Joseph P. Tracy 1933-6-25 12618 Humboldt 2 to 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UC552236  Sisymbrium officinale Joseph P. Tracy 1933-8-22 12976 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC23752  Sisyrinchium bellum Tim Baroni 1971-7-6 116 Humboldt 8 mi. S of Ferndale on Mattole Rd. Comment
  UC175305  Sisyrinchium bellum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3587 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC13929  Sisyrinchium bellum R. D. Modaferri 1965-5-13 97 Humboldt 0.8 mi. N of Trinidad on Trinity St. 305 Comment
  RSA366962  Sisyrinchium bellum Bonnie C. Templeton 1964-6-13 10183 Humboldt Near old Highway 101 to Trinidad Comment
  UC15049  Smilacina racemosa Mrs. M. H. Manning April, 1901 13 Humboldt near Hupa Comment
  SD42283  Solidago canadensis subsp. elongata Carl B. Wolf 1937-9-9 Humboldt north coast range, Wildcat Ridge, 6.3 mi S. of Ferndale. 305 Comment
  CAS-BOT-BC365662  Solidago spathulata L. R. Abrams 1916-7-20 6144 Humboldt Eureka Comment
  HSC67441  Solidago spathulata J. P. Smith 1971-10-6 4948 Humboldt End of Murray Rd. in McKinleyville. Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  UCD136120  Soliva sessilis Linda M. Barker 1976-4-13 1385 Humboldt 3 miles west of Arcata. Comment
  HSC6223  Sonchus oleraceus J. W. Johnson 1962-4-8 1216 Humboldt Arcata, Mad River Co. Park Comment
  HSC6224  Sonchus oleraceus J. W. Johnson 1961-8-17 1043 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC36097  Sparganium angustifolium Ken Harrington 1973-10-7 Humboldt Log pond in Arcata Comment
  RSA355701  Sparganium angustifolium subsp. emersum Walter Wisura, Dave Kelly 1986-7-30 4135 Humboldt North of Crannel on Louisiana Pacific Lumber Co. property; in pond ca. 1 mile beyond the gate. Comment
  RSA640443  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth. Arcata Salt Marsh Project. Comment
  HSC4236  Spergula arvensis S. J. Hawks 1965-4-6 22 Humboldt Clam Beach Comment
  HSC100418  Spergula arvensis Carl C. Marshall Apr 1887 398 Humboldt Fields, etc. Comment
  HSC37994  Spergularia macrotheca Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC45059  Spergularia rubra R. Sutherland 1978-5-12 6 .12578 Humboldt Mckee Flat 288 Comment
  UC1196398  Spiranthes romanzoffiana Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  HSC100151  Spirodela polyrhiza M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds Comment
  UC1239726  Stachys ajugoides var. ajugoides Joseph P. Tracy 1942-6-2 17093 Humboldt 1 mi e Alton 30 Comment
  UC668215  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  UC668220  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16131 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  UCLA70877  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  UCLA70885  Stachys ajugoides var. rigida C. Epling Jun 1938 Humboldt Williams Grove of Redwoods Comment
  UCLA71395  Stachys ajugoides var. rigida M. S. Jussel 1931-5-2 Humboldt Sylvandale Comment
  HSC89498  Stachys chamissonis P. A. Daly 1984-5-6 2 Humboldt Trinidad Head 61 Comment
  RSA167436  Stachys rigida subsp. quercetorum Joseph P. Tracy 1950-6-8 18741 Humboldt Near Petrolia. Hills between town and ocean. 30 Comment
  HSC54587  Stachys rigida var. rigida Overton, Butler 1979-7-24 9651 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC4273  Stellaria media D. K. Smith 1968-1-16 2 Humboldt Bank of Crannell Rd. Comment
  UC902035  Stenanthium occidentale Joseph P. Tracy 1949-8-26 18517 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC32338  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5643 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC32339  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5642 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC68958  Stipa lemmonii Jacqueline Greenleaf 1980-7-16 251 Humboldt Near Buck Mtn. 1250 Comment
  HSC96939  Stipa lemmonii Ryoko Ito, Shauna McDonald 2007-6-11 4 Humboldt 14.1 mi. above Hwy. 299 1372 Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC103294  Streptanthus tortuosus Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest; ~ 1.7 mi. south of Berry Summit along Titlow Hill Road.; ~ 1.4 mi. west-northwest of Horse Mtn. Radio Tower. 980 Comment
  HSC38492  Streptanthus tortuosus D. E. Anderson, J. P. Smith 1971-6-18 - 1096 Humboldt Horse Mtn. Comment
  UCR275109  Streptopus amplexifolius Charity A. Hartshorn 2016-5-14 33 Humboldt Arcata Community Forest 244 Comment
  CAS-BOT-BC269566  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-2 s.n. Humboldt Requa and vicinity. 6 miles E. up Klamath River on Terwah Road Comment
  UC1585428  Symphoricarpos albus var. laevigatus R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 26 Humboldt sw of Hoopa (on Bair Rd, at Pine Ridge Summit); Pine Ridge Summit 970 Comment
  HSC58801  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11611 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1222984  Symphyotrichum chilense Joseph P. Tracy 1950-10-7 19383 Humboldt e of, (on the Trinity Highway) Redwood Creek; Berry's Mountain 548 Comment
  CAS-BOT-BC99006  Symphyotrichum eatonii Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  CAS-BOT-BC98975  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1216 Humboldt Trinity Summit near Ranger Station 1828 Comment
  HSC99571  Symphyotrichum spathulatum var. spathulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 236 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
  UC162710  Synthyris reniformis Joseph P. Tracy 1911-5-7 3177 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCR122356  Tanacetum camphoratum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  SBBG53001  Tanacetum vulgare J. D. Hobson -Jun-1966 Humboldt Loleta Comment
  HSC6263  Taraxacum officinale William J. Ferlatte 1963-4-28 28 Humboldt Near 12th and B St., Arcata Comment
  HSC6264  Taraxacum officinale R. T. Forester 1963-3-21 30 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC85211  Taxus brevifolia Henry M. Pollard 1986-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC85213  Taxus brevifolia Doris K. Kildale 1927-5-13 3126 Humboldt Redwood Creek at Berry's 289 Comment
  HSC98504  Taxus brevifolia Cara Witte 2008-8-6 1000 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  SD61058  Taxus brevifolia Darley F. Howe 1964-8-7 Humboldt Mill Creek Road, 8.2 miles from Highway #96, Hoopa Valley 1064 Comment
  CAS-BOT-BC447401  Tellima grandiflora H. D. Ripley; R. C. Barneby 1945-6-16 6824 Humboldt North of Harris Comment
  HSC20428  Tellima grandiflora D. E. Anderson 1963-3-16 2382 Humboldt Scotia Bluffs Comment
  UC673060  Thermopsis gracilis Joseph P. Tracy 1937-5-31 15326 Humboldt rocky point at Ruby Creek (along Trinity Hwy); Willow Creek Canyon 518 Comment
  HSC92244  Thermopsis macrophylla var. macrophylla Clare Golec 1995-7-6 Humboldt 701 Comment
  HSC103943  Thermopsis macrophylla var. venosa Lisa Hoover 1996-5-29 133 Humboldt Six Rivers National Forest; On ridge above Fish Lake 634 Comment
  SEINET200821  Thermopsis rhombifolia J. P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge. 1067 Comment
  UC1586873  Thlaspi montanum var. montanum Juha Pykala and D. H. Norris 1987-5-19 710 Humboldt Horse Mountain Road at intersection with ski-lift; Horse Mountain Road 1400 Comment
  UC1198811  Thlaspi montanum var. montanum Joseph P. Tracy 1939-4-29 16234 Humboldt near Weitchpec (along Trinity River); , near Weitchpec 121 Comment
  RSA184919  Thuja plicata L. S. Rose 1966-6-26 66039 Humboldt U.S. Highway 299, 10 miles east of Blue Lake 610 Comment
  JEPS62181  Tofieldia occidentalis subsp. occidentalis Hilda W. Grinnell 1932-7-12 14 Humboldt below McKay Camp (South Fork Mountain) Comment
  UC169095  Tonella tenella Mrs. M. H. Manning Apr 1902 Humboldt Hupa Comment
  BLMAR155  Toxicodendron diversilobum Donald Hazlett 1994-6-7 155 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC89478  Toxicodendron diversilobum P. A. Daly 1986-3-12 81 Humboldt Trinidad Head 61 Comment
  UC535719  Trichostema lanceolatum Eleanor Armstrong 1934-7-15 1128 Humboldt Richardson Grove 121 Comment
  UC535718  Trichostema laxum Eleanor Armstrong 1934-7-15 1130 Humboldt Richardson Grove 121 Comment
  JEPS63140  Trichostema laxum W. L. Jepson 1921-9-11 9465 Humboldt DeVoy Flat, South Fork Eel River Comment
  RSA440753  Trichostema laxum E. S. Spalding 1924-7-13 s.n. Humboldt Lanis Flats, bank of Eel River. Comment
  UC32547  Trichostema laxum Chestnut and Drew 1888-7-12 Humboldt Campbell's Comment
  HSC17941  Trientalis latifolia John A. Dubois 1962-5-12 10 Humboldt 20 mi. E of Arcata Comment
  SEINET11996902  Trientalis latifolia F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -283 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET8729732 Image available Trientalis latifolia H. E. Parks, S. T. Parks 1952-1 7548 A Humboldt Spruce Cove, Trinidad. 0 Comment
  UC165509  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1321 Humboldt Hupa Indian Reservation (now spelled Hoopa on modern maps) North Coast Ranges 152 Comment
  UC1197235  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1921-6-12 5820 Humboldt Kneeland Prairoe Northern Coast Ranges 762 Comment
  UC495666  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1927-5-14 8007 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CDA4307  Trifolium angustifolium J. R. Keck Jr., W. Simas 1973-5-3 Humboldt Bear River Road, between Cook & Morrison. 0 Comment
  SDSU5270  Trifolium arvense D. F. Howe 1979-6-25 5195 Humboldt #299, one milesouth of Willow Creek. Comment
  UC1103432  Trifolium barbigerum Joseph P. Tracy 1932-5-10 9964 Humboldt near Petrolia (Mattole); North Caost Ranges 15 Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  UC1197059  Trifolium bifidum var. decipiens Joseph P. Tracy 1925-8-9 7226 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC1223499  Trifolium bifidum var. decipiens Joseph P. Tracy 1943-5-23 17427 Humboldt e Redwood Creek (at Berry's, on Trinity Hwy); North Coast Ranges 274 Comment
  UC1197050  Trifolium campestre Joseph P. Tracy 1905-7-1 2203 Humboldt immediate vicinity Eureka 0 Comment
  UC1197205  Trifolium ciliolatum Joseph P. Tracy 1921-4-24 5463 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  UC495735  Trifolium fucatum Joseph P. Tracy 1927-5-8 7992 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC79552  Trifolium fucatum Kenneth Clark 1980-4-18 573 Humboldt 350 yards SE of Dead Man's Gulch (Point No Pass) 8 Comment
  SEINET12154196  Trifolium fucatum L. K. Henry 1971-1 s.n. Humboldt Along Rt. 36, 2 mi E of Dinsmore, in Six Rivers Nat'l Forest Comment
  UC495732  Trifolium fucatum Joseph P. Tracy 1927-6-5 8100 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  HSC38085  Trifolium gracilentum Thomas W. Nelson, James Nelson 1976-5-30 2606 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC15218  Trifolium macraei J. W. Johnson 1961-5-27 1386 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  RSA32659  Trifolium microcephalum Doris K. Kildale 1925-6-28 808 Humboldt Kneeland Prairie. Comment
  UC495694  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9869 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UCD111485  Trifolium microcephalum W. A. Williams 1951-5-8 s.n. Humboldt location unknown. Comment
  HSC45138  Trifolium microcephalum R. Sutherland 1978-5-25 1 .25578 Humboldt Near the Mattole River 288 Comment
  HSC45139  Trifolium microcephalum R. Sutherland 1978-5-19 8 .19578 Humboldt 131 Comment
  JEPS65965  Trifolium microcephalum W. L. Jepson 1902-6-20 1898 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1197548  Trifolium microcephalum Joseph P. Tracy 1932-5-15 10056 Humboldt 5 mi above mouth of Smith River (at crossing of Roosevelt Hwy); Northern Coast Ranges 30 Comment
  UC1197552  Trifolium microcephalum Joseph P. Tracy 1927-6-18 8185 Humboldt betw Petrolia and the ocean Northern Coast Ranges 152 Comment
  HSC95594  Trifolium microdon Andrea Pickart 2002-5-13 102 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC1197547  Trifolium microdon Joseph P. Tracy 1925-8-9 7225 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC594252  Trifolium microdon S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3448 Humboldt nw slopes Buck Mtn Comment
  HSC38634  Trifolium obtusiflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1257 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  SEINET4178474 Image available Trifolium oreganum Unknown 1950-7-1 18945 Humboldt Near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. 1219 Comment
  HSC28188  Trifolium pratense Richard Curtis 1973-9-27 21 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  RSA168849  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt Near Blue Lake, along Mad River Comment
  UC1223324  Trifolium repens Joseph P. Tracy 1936-6-28 15021 Humboldt at Lake Prairie Bald Mtn 1066 Comment
  HSC98062  Trifolium repens Cara Witte 2007-7-11 503 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC32427  Trifolium subterraneum Linda M. Barker 1974-5-11 175 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC45107  Trifolium subterraneum R. Sutherland 1978-5-12 2 .12578 Humboldt Mckee Flat 288 Comment
  UC1197553  Trifolium variegatum var. melananthum Joseph P. Tracy 1930-5-18 8695 Humboldt Roseville golf course Northern Coast Ranges 152 Comment
  UC1223541  Trifolium variegatum var. variegatum Joseph P. Tracy 1933-5-20 12253 Humboldt near Petrolia (hills betw town and Ocean) Comment
  UC1197522  Trifolium willdenovii Joseph P. Tracy 1914-7-5 4557 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  UC1223315  Trifolium willdenovii Joseph P. Tracy 1938-6-8 15866 Humboldt Samoa Sand Dunes Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  SBBG89475  Trifolium wormskioldii J. P. Tracy 1933-5-20 12236 Humboldt mouth of Domingo Crk 5 mi S of Cape Mendocino 3 Comment
  UC303197  Trifolium wormskioldii Joseph P. Tracy 1925-5-30 7044 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  SEINET10577442  Trifolium wormskioldii var. wormskioldii Joseph P. Tracy 1911-6-25 Tracy 3246 Humboldt At Eureka 0 Comment
  RSA168944  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt Head of South Yager. Comment
  UC1364374  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-7 581 Humboldt just n. of Carlotta (just w. of CA Hwy. 36) Comment
  UC902042  Trillium angustipetalum Joseph P. Tracy 1949-6-25 18350 Humboldt near Box Camp Trinity Summit 1524 Comment
  CHSC28032  Trillium ovatum L. Greenhill 1977-4-6 12 Humboldt Abundant population 10 ft. from n side of highway 36, 1mile w from Grizzly Creek State Campground. 91 Comment
  POM117306  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC34636  Trillium ovatum J. M. Sauser 1975-4-9 1 Humboldt Jacoby Creek Rd. 4 mi. E of junction with Old Arcata Rd. Comment
  HSC34646  Trillium ovatum Peter R. Leinau 1975-4-5 1 Humboldt Block 11 of the Union St. addition to the city of Arcata, 1640 Union St. Comment
  UC1197822  Trillium ovatum Joseph P. Tracy 1923-3-17 6153 Humboldt near Garberville Garberville; Northern Coast Ranges 121 Comment
  HSC100892  Trillium sessile var. californicum Carl C. Marshall Apr 1886 122 Humboldt Thickets near bay. Comment
  HSC20854  Triphysaria eriantha subsp. eriantha J. R. Woodside 1963-5-1 21 Humboldt 1.25 mi. N of Fairhaven Comment
  UC902254  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1941-4-2 16805 Humboldt near Samoa (on Humboldt Bay, Sand Dunes); on Humboldt Bay 6 Comment
  CDA41904  Triphysaria pusilla April A. Allard & Gregory D. O Connell 2005-6-1 8 Humboldt Coldspring Camp, 7.4 miles south of Hwy. 299 on NF1. Comment
  HSC20860  Triphysaria versicolor subsp. faucibarbata C. O. Baker 1962-5-7 36 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  UC162562  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1911-6-11 3237 Humboldt near Trinidad; Northern Coast Ranges, near Trinidad 60 Comment
  SEINET200925 Image available Trisetum canescens Joseph P. Tracy 1935-7-30 14359 Humboldt Salmon Summit. 1768 Comment
  UC187232  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point Eel River (on Eel River) 152 Comment
  UCD93304  Trisetum canescens A. A. Beetle; G. L. Stebbins 1942-6-1 3457 Humboldt 7 miles north of Weitchpec, in northern Humboldt County. Comment
  UCD93892  Trisetum canescens Joseph P. Tracy 1901-5-30 1109 Humboldt At Eureka. 0 Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  CAS-BOT-BC519142  Triteleia hyacinthina H. C. Cantelow 1939-6-4 3917 Humboldt Road to Bridgeville 4 1/2 miles west of Alder Point Comment
  RSA183018  Triteleia hyacinthina Lee W. Lenz 1966-5-24 24659 Humboldt W of Berry Summit, US 299. Comment
  UC1222691  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt in meadow near Sproston Place (on the road to the Albee Place, 3 mi s Burr Valley); w side Buck Mountain 1158 Comment
  HSC68611  Triteleia laxa Jacqueline Greenleaf 1980-7-16 240 Humboldt Near Buck Mountain. 1250 Comment
  HSC81661  Triteleia laxa Thomas W. Nelson, Jane P. Nelson 1980-7-13 6060 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  RSA254788  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC144105  Triteleia laxa J. P. Tracy 1909-7-18 3013 Humboldt immediate vicinity of Eureka 0 Comment
  UC15047  Triteleia laxa Harley P. Chandler May 1901 1247 Humboldt Redwood Belt North Coast Ranges 152 Comment
  CAS-BOT-BC526354  Triteleia laxa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC526355  Triteleia laxa Doris K. Kildale 1926-5-16 2005 Humboldt Miranda, South Fork of Eel River Comment
  HSC35965  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1949 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  HSC94180  Triticum aestivum Gordon Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, E of the Community Center parking lot 3 Comment
  OBI17879  Tsuga heterophylla Wallace Weber, John C. Cooke, D. J. Pinkava, & David J. Keil 1969-8-19 2213 Humboldt 24.9 mi W of Humboldt County line on Rte 299 Comment
  RSA173982  Umbellularia californica R. F. Thorne 1957-9-2 19001 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1239527  Uropappus lindleyi Joseph P. Tracy 1927-5-8 7973 Humboldt grassy slopes facing South Fork Eel Rivar (Phillipsville); Northern Coast Ranges, South Fork Eel River, Phillipsville 121 Comment
  HSC102021  Vaccinium cespitosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 922 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  UC1197783  Vaccinium membranaceum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9034 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC199322  Vaccinium ovatum Carl B. Wolf 1930-10-24 1761 Humboldt Along the Klamath River 2 miles below mouth of Salmon River 152 Comment
  HSC100479  Vaccinium ovatum Carl C. Marshall Mar 1886 140 Humboldt Near coast everywhere. Comment
  HSC28133  Vaccinium ovatum J. D. Ackerman, A. M. Montalvo 1973-3-27 45 Humboldt 1.5 mi. N of Manila Comment
  HSC40255  Vaccinium ovatum Linda M. Barker 1976-4-30 1423 Humboldt 3 mi. W of Arcata Comment
  POM118414  Vaccinium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA46803  Vaccinium ovatum Doris K. Kildale 1927-5-15 3189 Humboldt Big Lagoon Flat. Comment
  UCD118091  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rt. 101 @ Mad River Overlook. 24 Comment
  RSA34285  Vaccinium parvifolium J. Wendell Howe 1930-9-15 s.n. Humboldt Arcata. Comment
  HSC102019  Vaccinium uliginosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 920 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  RSA30602  Valeriana sitchensis subsp. scouleri Lincoln Constance, R. C. Rollins 1942-5-11 2867 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  UC416771  Valeriana sitchensis subsp. sitchensis Mrs. M. H. Manning 1901-7-1 117 Humboldt Trinity Summit Comment
  CAS-BOT-BC76051  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  HSC27895  Vancouveria hexandra Clifton Raymond Chesbrough 1973-6-19 62 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  CAS-BOT-BC76053  Vancouveria hexandra L. R. Abrams 1916-7-21 6150 Humboldt Grizzly Creek. Comment
  HSC37714  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 375 Humboldt Redwood Grove, E of Van Duzen Co. Park, off Hwy. 36, E of Carlotta 61 Comment
  CAS-BOT-BC76085  Vancouveria planipetala Doris K. Kildale 1928-5-19 5204 Humboldt Chalk Mountain. Comment
  HSC70723  Vancouveria planipetala Gail Newton 1980-7-14 1517 Humboldt Near Deadman Ridge 1097 Comment
  HSC72636  Vancouveria planipetala J. P. Smith 1977-7-3 9247 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA246944  Vancouveria planipetala R. F. Thorne, P. Everett 1965-8-5 35134 a Humboldt Mt. Chamisal. 549 Comment
  SBBG46472  Vancouveria planipetala K. K. Muller 1954-6-21 635 Humboldt Olson Crk, 2 mi ENE of Mad River Comment
  HSC30401  Vancouveria planipetala J. D. Ackerman, A. M. Montalvo 1974-7-17 377 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville Comment
  UC1225858  Veratrum viride Joseph P. Tracy 1942-9-6 17312 Humboldt near McKay (South Fork Mountain); South Fork Mountain 1676 Comment
  UC213362  Verbascum blattaria Joseph P. Tracy 1919-9-13 5199 Humboldt Trinity River Valley near Willow Creek (near Willow Creek); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC154273  Verbena lasiostachys var. lasiostachys Harley P. Chandler June, 1901 1353 Humboldt Hupa Indian Reservation 152 Comment
  HSC45597  Veronica americana Diane L. Reed 1978-5-27 136 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  POM283821  Veronica americana Lyman D. Benson 1928-7-10 441 Humboldt Clam Beach, Trinidad. Comment
  HSC45251  Veronica americana M. Alcasas 1978-6-3 119 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  RSA245265  Veronica americana John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of jct of Guintoli Ln. and West End Road. Comment
  RSA246672  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC21205  Veronica peregrina Anonymous 1957-4-27 126 Humboldt 1 mi. W of Honeydew Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  SEINET3825239 Image available Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt Southern outskirts of Eureka Comment
  UC176113  Veronica scutellata Joseph P. Tracy 1912-7-21 3778 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  JEPS16498  Veronica scutellata Milo S. Baker 1923-8-3 173 Humboldt 6 mi n of Arcata; North Coast trip Comment
  JEPS16812  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-24 14176 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC74383  Vicia americana var. americana M. A. Baker 1980-6-28 2474 Humboldt Near Mad River Buttes 1445 Comment
  UC1197463  Vicia americana var. americana J. P. Tracy 1901-5-30 1111 Humboldt immediate vicinity Eureka 0 Comment
  RSA20860  Vicia benghalensis Carl B. Wolf 1937-6-18 8899 Humboldt 1/2 miles E of Alton. 21 Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  UC1222590  Vicia hirsuta Joseph P. Tracy 1944-6-10 17474 Humboldt Eureka Comment
  UC1197474  Vicia tetrasperma Joseph P. Tracy 1934-6-18 13231 Humboldt Eureka; railroad depot 6 Comment
  HSC71614  Vicia tetrasperma J. P. Smith 1973-5-26 6832 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89577  Vicia tetrasperma K. Grenier, Leonel Arguello 1989-6-19 353 Humboldt Bald Hills Grasslands. At Stagecoach Stop. Comment
  UCD108796  Vicia tetrasperma Frederica Bowcutt 1989-5-23 1331 b Humboldt Sinkyone Wilderness State Park. Bear Harbor, 2.5 air miles SE of Needle Rock ranch house, 4 air miles SE of Four Corners, 15 air miles SW of Garberville. Old home sites. 12 Comment
  RSA755058  Vicia villosa Robert F. Thorne, Percy C. Everett 1965-8-8 35254 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  CAS-BOT-BC263833  Viola Lena E. Bowley 1941-4-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC263944  Viola adunca Mrs. H. E. Wilder 1924-5-26 s.n. Humboldt Carlotta 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
  RSA23651  Viola adunca Carl B. Wolf 1939-7-7 9518 Humboldt Orick to Weitchpec Road 10 miles from Martin's Ferry. 305 Comment
  CAS-BOT-BC536497  Viola glabella W. R. Dudley 1899-6-19 s.n. Humboldt Shady Run -- Scotia Comment
  UC1762506  Viola glabella Milo S. Baker 1947-8-10 11900 Humboldt near end of forest road from Hoopa 1371 Comment
  HSC21865  Viola hallii Paul Shields May 1955 Humboldt Kneeland Comment
  HSC33056  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC44426  Viola hallii Brad Klipfel 1975-5-30 646 Humboldt Horse Mtn. Comment
  HSC74380  Viola hallii M. A. Baker 1980-6-28 2480 Humboldt Near Mad River Buttes 1445 Comment
  UC1761732  Viola hallii H. E. Parks 1934-6-27 5255 Humboldt Grouse Mountain Comment
  UC35283  Viola hallii Chesnut and Drew July 1888 Humboldt Kneeland Comment
  UC35284  Viola ocellata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  SEINET11993509  Viola ocellata F. H. Utech 1986-1 86 -388 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  CAS-BOT-BC270151  Viola palustris H. E. Parks; Joseph P. Tracy 1927-4-23 7919 Humboldt Big Lagoon, in bog 3 Comment
  RSA249436  Viola purpurea subsp. integrifolia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5591 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC71831  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1980-6-27 5959 Humboldt Saddle E of Mt. Lassic 1677 Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  HSC12233  Viola sempervirens Gary J. Stebbins 1970-2-2 3 Humboldt In Big Lagoon Park 2.7 mi. W of U.S. 101 Comment
  RSA46480  Viola sempervirens Doris K. Kildale 1927-3-19 2901 Humboldt Luffenholtz Creek. Comment
  CAS-BOT-BC198761  Vulpia bromoides Harley P. Chandler 1901-5-1 1119 Humboldt Humboldt Bay 30 Comment
  UC1607841  Vulpia bromoides H. E. Parks May 1933 4306 Humboldt Trinidad district, Spruce Cove Comment
  UC1145194  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-6-17 14961 Humboldt nw slope Buck Mountain (Burr Valley); , Burr Valley 1066 Comment
  UC594246  Vulpia microstachys var. pauciflora S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3431 Humboldt Buck Mountain 822 Comment
  HSC9926  Vulpia myuros E. W. Styskel 1964-4-3 56 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  POM118381  Vulpia myuros Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC27889  Woodwardia fimbriata Clifton Raymond Chesbrough 1973-6-19 71 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC13045  Woodwardia fimbriata Steve Dorei 1970-10-13 45 Humboldt H.S.U. campus, Arcata, W of Forestry building, SW corner of parking lot Comment
  CAS-BOT-BC382919  Wyethia angustifolia Doris K. Kildale 1927-5-20 3205 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC382923  Wyethia angustifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC73473  Wyethia angustifolia Gail Newton 1980-7-11 1316 Humboldt Near Red Mtn. 1341 Comment
  UC129416  Wyethia angustifolia Harley P. Chandler June 1901 1494 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  RSA21321  Wyethia angustifolia C. B. Wolf 1937-8-13 9222 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC99010  Wyethia longicaulis Cara Witte 2008-7-1 778 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC154242  Yabea microcarpa Joseph P. Tracy 1906-5-13 2454 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC43850  Zeltnera muehlenbergii Maralyn O'Meara 1974-7-17 557 Humboldt Kneeland Comment
  CDA868  Zostera japonica Gordon Leppig 2002-7-8 1783 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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