Search Results — 2000 specimen records retrieved (1381 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC102514  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1500 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55267  Abies concolor Overton, Butler 1979-8-2 12634 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC72979  Abies concolor Gail Newton 1980-7-14 1514 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC78025  Abies grandis Doris K. Kildale 1928-6-2 5303 Humboldt Bucksport - near Eureka Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  HSC28258  Abies grandis Gary S. Lester 1973-12-2 57 Humboldt Humboldt State University Campus, Arcata Comment
  HSC16135  Abronia latifolia R. E. Hafenfeld 1965-5-9 54 Humboldt Junction of County Rd. and Gold Bluff Beach Rd. Comment
  OBI35878  Abronia latifolia David J. Keil 1983-7-1 17287 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  UCD170784  Abronia latifolia Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon. 2 Comment
  UCR122367  Abronia latifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7022 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  SEINET11933918  Abronia latifolia F. H. Utech 1986-1 86 -404 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  JEPS61219  Abronia umbellata William S. Cooper 1925-7-30 128 Humboldt Little River Comment
  CAS-BOT-BC330540  Acer circinatum Doris K. Kildale 1925-6-28 836 Humboldt Lawrence Creek near bridge on Kneeland--Iaqua road 609 Comment
  CAS-BOT-BC330542  Acer circinatum C. B. Wolf 1931-8-29 2368 Humboldt Redwood Highway, 3 miles N of Orick. (Davison's Ranch on Prairie Creek) 60 Comment
  POM87959  Acer circinatum L. R. Abrams 1922-6-27 8298 Humboldt Prairie Creek, 4 miles north of Orick Comment
Read comments
Feb 25 2015
  RSA386075  Acer circinatum H. E. McMinn 1931-6-28 2549 Humboldt Orick to Requa Comment
  UC165811  Acer circinatum J. P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake; Mad River near Blue Lake 30 Comment
  SEINET7892760  Acer circinatum W. D. Billings 1940-6-25 1349 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  HSC58007  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-31 11795 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC165809  Acer macrophyllum Joseph P. Tracy 1911-6-4 3224 Humboldt along Little River 5 mi from the coast; Northern Coast Region, along Little River 121 Comment
  UC205627  Acer macrophyllum Joseph P. Tracy 1920-10-24 5404 Humboldt near Korbel (North Fork of Mad River); Northern Coast Ranges, North Fork of Mad River 60 Comment
  UCD117014  Acer macrophyllum David G. Forbes 1966-4-4 6438 Humboldt 0.5 mile south of Weott on Avenue of the Giants. 30 Comment
  HSC59675  Achillea millefolium George Kirn 1977-10-12 Humboldt South shore Little River, 1/2 mile from mouth 8 Comment
  POM118513  Achlys californica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC203890  Achlys californica Joseph P. Tracy 1918-5-28 4951 Humboldt High Prairie on Bald Mt. Northern Coast Ranges, Bald Mt. 1066 Comment
  HSC76283  Achlys triphylla Teresa Prendusi 1981-7-9 181 Humboldt Near Cedar Camp. 1268 Comment
  SDSU13751  Achlys triphylla subsp. triphylla D. F. Howe 1969-6-4 4629 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  RSA249338  Achnatherum nevadense D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5624 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  SEINET11854795  Achyrachaena mollis J. P. Tracy 1948-1 18054 Humboldt near Harris Comment
  HSC71471  Acmispon micranthus J. P. Smith, J. O. Sawyer 1973-5-12 6673 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC412601  Aconogonon alaskanum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Pilot Cr. & Trinity Comment
  UCD98796  Aconogonon phytolaccifolium P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  SEINET12094122  Actaea rubra F. H. Utech 1988-1 88 -268 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC953  Adiantum aleuticum Gene S. Van Horn 1962-5-20 24 Humboldt 0.5 mi. S of large quarry, 200 yards S of Jacoby Creek 46 Comment
  POM182458  Adiantum aleuticum Joseph P. Tracy, H. H. Tracy 1916-6-25 4742 Humboldt Redwood Creek, East of Trinidad 152 Comment
  SEINET12232136  Aesculus californica J. P. Tracy 1950-1 18847 Humboldt Petrolia Comment
  HSC58330  Agastache urticifolia Overton, Butler 1979-8-2 12630 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  POM174060  Agoseris grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt At Eureka 0 Comment
  UC1222927  Agoseris grandiflora Joseph P. Tracy 1950-6-15 18798 Humboldt 7 mi n, at Jenk's Ranch Harris; Mail Ridge Comment
  UC164824  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-4 3258 Humboldt at w side of, on hill slopes, near Willow Creek Trinity River; Northern Coast Ranges, Willow Creek 243 Comment
  HSC79419  Agoseris heterophylla Kenneth Clark 1980-4-18 582 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  UC1222766  Agoseris retrorsa Joseph P. Tracy 1950-7-1 18952 Humboldt Grouse Mountain 1219 Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  UC187290  Agrostis J. P. Tracy 1900-8-26 926 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC127277  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Northern Coast Region. Eureka. 60 Comment
  HSC8790  Agrostis exarata H. E. Parks, S. T. Parks Jun 1952 7553 Humboldt Spruce Cove, Trinidad 61 Comment
  UC552715  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 Humboldt Fort Seward 106 Comment
  RSA293101  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with Hwy. 36 549 Comment
Read comments
Nov 3 2011
  UC187288  Agrostis hallii J. P. Tracy 1900-7-4 876 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UCD52561  Agrostis hallii P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  UCD52687  Agrostis hallii H. S. Yates 1936-6-17 5698 Humboldt Lower N.W. slope of Buck Mt. 792 Comment
Read comments
Aug 22 2008
  UC552709  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  SEINET3127763  Agrostis pallens J. B. Davy 1899-6-13 5521 Humboldt Near Pepperwood Comment
  UC552730  Agrostis pallens Joseph P. Tracy 1935-7-28 14335 Humboldt head Brett Hole (rocky exposed places); Trinity Summit 1828 Comment
  UC249863  Agrostis scabra Joseph P. Tracy 1924-8-31 6841 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  CAS-BOT-BC138636  Agrostis stolonifera Carl B. Wolf 1927-8-28 1189 Humboldt Eureka Bay, on the road to Arcata. Comment
  UC552711  Agrostis thurberiana Joseph P. Tracy 1935-7-27 14281 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC138573  Agrostis variabilis Joseph P. Tracy 1930-7-16 8948 Humboldt Northern Coast Ranges. South Fork Mountain. Along summit near Blake lookout. 1737 Comment
  HSC70968  Aira caryophyllea R. York 1980-5-17 541 Humboldt Near Le Perron Peak 1066 Comment
  UCD55699  Aira caryophyllea A. H. Murphy 1951-6-1 51 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap, in Erickson Glade. Comment
  UCD55782  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA256716  Aira praecox Lon Hall 1975-5-24 381 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  UC526678  Aira praecox Joseph P. Tracy 1925-6-13 7099 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  SEINET199677  Allium bolanderi J. P. Tracy 1932-6-14 10139 Humboldt S Fork of Trinity River 0 Comment
  UC15012  Allium bolanderi Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5636 Humboldt ridge near Hoopa; North Coast Ranges Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  CAS-BOT-BC469017  Allium falcifolium Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1676 Comment
  SEINET8191725  Allium triquetrum R. R. Halse 2013-3-28 8768 Humboldt Along US Hwy 101, ca 1.0 mile W of Orick. 4 Comment
  CAS-BOT-BC476603  Allium unifolium Mrs. A. W. Kildale 1925-6-1 s.n. Humboldt near Korbel (?) Comment
  POM170198  Allium unifolium Jos Burtt Davy 1899-6-11 5444 Humboldt Between Hubbard s Station and Elk Prairie. Comment
  HSC100705  Allocarya plebeia Carl C. Marshall Jun 1886 178 Humboldt Near Scottsville. Comment
  RSA249506  Allotropa virgata R. F. Thorne, P. C. Everett, K. Thorne 1965-8-5 35132 b Humboldt Wailaki Recreation Site. 610 Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  CAS-BOT-BC169539  Alnus rubra Carl B. Wolf 1931-8-28 2365 Humboldt Road-cut slope, Redwood Highway, 4 1/2 miles N of Fortuna on road to Eureka 15 Comment
  HSC89482  Alnus rubra P. A. Daly 1986-3-12 71 Humboldt Trinidad Head, along trail 61 Comment
  RSA24390  Alnus rubra C. B. Wolf 1941-2-22 9917 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  RSA44474  Alopecurus aequalis Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  UC526743  Alopecurus aequalis Joseph P. Tracy 1927-7-17 8269 Humboldt w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, w. foothills of Chaparral Mt., Three 457 Comment
  UCD55908  Alopecurus geniculatus J. Lenz 1950-6-1 s.n. Humboldt Cranell. Comment
  UCD55810  Alopecurus pratensis R. Tofsrud 1948-7-1 s.n. Humboldt Scotia. Comment
  UCD55924  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC132197  Amaranthus albus Joseph P. Tracy 1907-8-20 2598 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1222884  Ambrosia artemisiifolia Joseph P. Tracy 1950-9-22 19379 Humboldt 3 mi sw Orleans Comment
  CAS-BOT-BC13706  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt At mouth of Little River Comment
  SEINET3132553  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt Arcata, W.M. Lanphere farm, Samoa Peninsula. Comment
  HSC5658  Ambrosia chamissonis David Adams 1960-7-17 Humboldt 2 miles S of Samoa 0 Comment
  CAS-BOT-BC142884  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-7-17 3756 Humboldt Bug Creek 792 Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  JEPS45134  Amelanchier utahensis W. L. Jepson 1902-7-15 2031 Humboldt Mud Spring to Trinity Summit 1524 Comment
  HSC8843  Ammophila arenaria Paul Shields 1955-9-22 Humboldt 12 mi. NW Arcata Comment
  SBBG115197  Ammophila arenaria D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, ca. 1 mi N of Arcata Airport Comment
  UC1103317  Ammophila arenaria Joseph P. Tracy 1947-7-3 17767 Humboldt sand dunes at mouth of Little R. 6 Comment
  SACT000320  Ammophila arenaria D. Shillingbury 1963-5-11 Humboldt Coastal strand Comment
  HSC17842  Anagallis arvensis S. J. Hawks 1965-5-18 79 Humboldt Clam Beach Comment
  HSC96542  Anagallis arvensis Gordon Leppig 1997-8-13 646 Humboldt Big Lagoon County Park 3 Comment
  CAS-BOT-BC45142  Anaphalis margaritacea Annie M. Alexander; Louise Kellogg 1948-9-3 5572 Humboldt Trinity and Klamath Rivers 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
  UCSC000820  Anaphalis margaritacea H. L. Person 1932-7-16 s.n. Humboldt Highway N. of Trinidad Trinidad - Rock Point Comment
  HSC18008  Anemone deltoidea W. K. Parks Jul 1933 1170 Humboldt S Fork Mtn. Comment
  HSC56130  Anemone deltoidea G. L. Clifton, Griswold 1979-8-1 11942 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC391778  Anemone deltoidea Lillian Mott 1976-6-29 15 LM75 Humboldt Lady Bird Johnson Redwood Grove, Prairie Creek 60 Comment
  CAS-BOT-BC391783  Anemone deltoidea W. R. Dudley 1899-6-19 s.n. Humboldt Scotia--Shady Run. Comment
  HSC82404  Anemone deltoidea Thomas W. Nelson 1979-7-11 5034 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  UC1197384  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  UC582632  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC21451  Angelica lucida R. W. Spjut 1968-10-26 219 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  UC1103414  Angelica lucida Joseph P. Tracy 1914-10-4 4632 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  UC153950  Angelica lucida Joseph P. Tracy 1910-6-5 3153 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  UC154250  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  UC184954  Angelica lucida John Matthiesen Humboldt Loleta Comment
  UC1051577  Angelica tomentosa Joseph P. Tracy 1948-9-5 18185 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1524 Comment
  HSC70993  Angelica tomentosa Thomas W. Nelson 1977-9-3 3731 Humboldt Old logging road just E of Pine Mtn., Lassics 1433 Comment
  JEPS14221  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 Comment
  HSC45639  Anisocarpus madioides Diane L. Reed 1978-5-7 50 Humboldt Friday Ridge Road, near Hwy. 299 Comment
  UC1199376  Anthemis cotula Joseph P. Tracy 1918-7-1 4962 Humboldt along Eel River from South Fork to Scotia Eel River 60 Comment
  UC1222873  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Van Duzen River (mouth) Eel River, Van Duzen River Comment
  UCD56135  Anthoxanthum aristatum W. R. Powell 1960-7-9 s.n. Humboldt 10 miles SE of Orick (direct line), Dolason Hill Prairie of the Bald Hills, along Orick-Weitchpec Road. 731 Comment
  CAS-BOT-BC289123  Anthoxanthum occidentale Richard R. Halse 1996-3-26 5020 Humboldt At junction of Bald Hills Road adn Holter Ridge Bike Route, 11 miles SE of U.S. Hwy. 101, Redwood National Park 708 Comment
  CAS-BOT-BC289127  Anthoxanthum occidentale Mabel Wiesendanger 1928-4-7 907 Humboldt Lane's Redwood Flat, Redwood Highway Comment
  HSC28090  Anthoxanthum occidentale J. D. Ackerman, A. M. Montalvo 1973-3-27 37 Humboldt 1.5 mi. N of Manila Comment
  CAS-BOT-BC137743  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  CDA18220  Anthoxanthum odoratum G. D. Barbe, T. C. Fuller 1974-6-17 1848 Humboldt North Coast Ranges; At 707 L Street, Eureka 0 Comment
  UC1103320  Anthoxanthum odoratum Joseph P. Tracy 1926-4-17 7412 Humboldt Northern Coast Ranges, Eurek Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC905596  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mi. E. of Freshwater (Garfield), on Kneeland road Comment
  UC1196737  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1947-7-13 17771 Humboldt near mouth of Hors Linto Creek 152 Comment
  UC902210  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1948-8-8 18086 Humboldt Iaqua school house; Iaqua 609 Comment
  SEINET14183378  Aphanes occidentalis Unknown 1918-5-1 4903 Humboldt Plants of Northern Coast Ranges of Califonia warm place by roadside towards McBrides KNEELAND PRAIRIE, HUMBOLDT COUNTY Altitude 2500 ft. Comment
  SD51267  Apocynum androsaemifolium Darley F. Howe 1961-8-2 3117 Humboldt 23.5 miles east of Orick on Bald Mountain Road 915 Comment
  POM89844  Apocynum sibiricum Chesnut, E. R. Drew 1888-07 s.n. Humboldt Grouse Creek Comment
  BLMAR229  Aralia californica Jennifer Anthony-Wheeler 1996-9-26 229 Humboldt King range, growing along the Kings Peak Rd in creek drainages 670 Comment
  UC314608  Aralia californica Joseph P. Tracy 1923-9-16 6554 Humboldt Trinity R. Valley near mouth of S. Fork; Northern Coast Ranges 182 Comment
  UC774624  Aralia californica Carl B. Wolf 1937-9-8 9302 Humboldt Bull Creek-Petrolia Rd. 12 mi. w. of Redwood Hwy.; North Coast Range 457 Comment
  UCR178912  Arbutus menziesii R. G. Swinney 1968-4-13 243 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  UC1196876  Arctostaphylos Joseph P. Tracy 1934-3-11 13157 Humboldt French Camp Ridge 1066 Comment
  UC1225936  Arctostaphylos Joseph P. Tracy 1947-7-5 17787 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS38977  Arctostaphylos canescens Joseph P. Tracy 1935-7-14 14064 Humboldt Horse Mountain 1432 Comment
  HSC98926  Arctostaphylos canescens subsp. canescens Cara Witte 2008-9-27 1045 Humboldt Titlow Hill. 1 mile north of turn off to Cold Spring. 1469 Comment
  CAS-BOT-BC23906  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1935-7-14 14064 Humboldt Horse Mountain 1432 Comment
  SEINET11995492  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1988-1 s.n. Humboldt on embankment between Summit Rd junction & electronic towers at Summit, Horse Mt. Recreational Area Comment
  CAS-BOT-BC23731  Arctostaphylos columbiana B. A. Stein 1981-11-1 567 Humboldt US Hwy 101 2 miles north of Patrick Poing 60 Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  HSC7722  Arctostaphylos columbiana H. E. Parks Feb 1934 4774 Humboldt Spruce Cove, Trinidad Comment
  JEPS49510  Arctostaphylos columbiana J. E. Adams 1955-5-12 1045 Humboldt Patrick's Point Comment
  SBBG58415  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Pt Comment
  UC397306  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  UC726576  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt along road paralleling the ocean Bishop Pine Lodge (3 mi n of Trinidad) Comment
  SEINET11995489  Arctostaphylos columbiana W. Knight, Knight, I. 1988-1 6363 Humboldt Bald Hill Rd about 21.5 mi from US 101 en route to Hoopa 930 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
  UC1193024  Arctostaphylos glandulosa subsp. glandulosa P. Zinke 1950-10-5 172 Humboldt 6 mi sw Honeydew; Quad 28D2, Beartrap Ridge 914 Comment
  CHSC63764  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 miles from US 101 en route to Hoopa. 929 Comment
  HSC68217  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 1975-4-6 8051 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  RSA633019  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27808 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  UCD162897  Arctostaphylos manzanita D. O. Burge 2015-6-5 1743 Humboldt Highway 101, Eel River Canyon. 100 Comment
  RSA47101  Arctostaphylos manzanita subsp. elegans Doris K. Kildale 1926-4-6 1718 Humboldt Dobbyns Creek along road from mail box to Log Cabin Ranch Comment
  CAS-BOT-BC24326  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1918-6-15 7111 Humboldt Brannan Mt. near Willow Creek. 1371 Comment
  CHSC110738  Arctostaphylos manzanita subsp. manzanita Dean Wm. Taylor 2011-5-4 21118 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River, 701 Comment
  UC1198677  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1923-3-17 6155 Humboldt Garberville Northern Coast Ranges 121 Comment
  HSC38516  Arctostaphylos nevadensis D. E. Anderson, J. P. Smith 1971-6-18 1085 Humboldt Horse Mtn. Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  SEINET11988227  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4326 Humboldt Regional Parks Botanic Garden, Berkeley, orig. from French Camp Comment
  SEINET11995486  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1988-1 6360 Humboldt 21 mi up Bald Hill Rd from US 101 en route to Hoopa 975 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-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  HSC77903  Arctostaphylos uva-ursi L. P. Janeway 1984-5-16 799 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  UC1196868  Arctostaphylos uva-ursi Joseph P. Tracy 1923-3-31 6170 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC484044  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa Humboldt Bay 15 Comment
  CAS-BOT-BC526230  Arctotheca calendula Larry Pries; Charles Lawrence 1989-6-8 s.n. Humboldt Larry Pries dairy, W of Ferndale, on Centerville Beach Rd Comment
  UCD129122  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  UCD56502  Aristida oligantha J. I. Mallory 1955-9-17 122 Humboldt California Forest and Range Experiment Station, NNW 3/8 mile of headquarters, Cottrell Ranch. 746 Comment
  CDA18206  Armeria maritima subsp. californica G. D. Barbe, T. C. Fuller 1974-6-17 1832 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC59096  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC45266  Arnica cernua M. Alcasas 1978-6-3 113 Humboldt Horse Mtn. summit 1513 Comment
  HSC96075  Arnica cernua J. Breton, A. Livingston, J. Lumbert 2005-6-24 1 Humboldt Horse Mtn. radio tower, 1/2 mile from intersection of three F.S. roads, 4.5 miles from Hwy. 299 on Titlow Hill Rd. 1445 Comment
  HSC64162  Arnica discoidea J. O. Sawyer, K. A. Sawyer 1979-6-24 3406 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  CAS-BOT-BC146268  Arrhenatherum elatius var. elatius T. C. Fuller 1966-10-4 15237 Humboldt Northwest portion of Arcata. Comment
  HSC58342  Artemisia douglasiana Overton, Butler 1979-8-2 12667 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA167208  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Trinity Summit- Meadow at Box Camp 1463 Comment
  RSA24049  Artemisia pycnocephala C. B. Wolf 1940-11-10 9782 Humboldt Coast south of mendocino- 1.8 mi. N of where road turns inland to Petrolia. 8 Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  JEPS103030  Artemisia suksdorfii R. Raiche, H. Forbes, A. C. Carmichael 1999-10-18 UCBG 24 Humboldt 18 miles NW of Honeydew on Mattole Rd., in sight of the ocean along the Mattole River 46 Comment
  HSC102075  Aruncus dioicus var. acuminatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 977 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC154045  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  JEPS45624  Aruncus dioicus var. pubescens W. L. Jepson 1902-7-11 2011 Humboldt South Fork Trinity River; Martin's Ranch Comment
  BLMAR236  Asarum caudatum Jennifer Anthony-Wheeler 1996-9-26 236 Humboldt King range, growing near boardwalk by horsetails in bear creek 548 Comment
  HSC63149  Asarum caudatum M. A. Baker 1979-6-28 941 Humboldt Comment
  RSA273341  Asclepias cordifolia Thomas W. Nelson, James Nelson 1976-5-30 2613 Humboldt McKeown Ranch north of Dinsmore. Comment
  RSA47105  Asclepias speciosa Doris K. Kildale 1925-7-5 s.n. Humboldt Willow Creek Flat 152 Comment
  RSA273373  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt North of Bear Creek 1463 Comment
  JEPS16848  Astragalus agnicidus H. Tosten 1931-6-7 Humboldt Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. Comment
  SEINET3070824 Image available Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  CAS-BOT-BC193132  Astragalus rattanii var. rattanii Volney Rattan 1884-1-1 s.n. Humboldt Headwaters Eel River Comment
  UC1197706  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
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC41304  Asyneuma prenanthoides Brad Klipfel 1974-7-23 467 Humboldt Horse Mtn. Comment
  CAS-BOT-BC68722  Athyrium filix-femina var. californicum Doris K. Kildale 1928-12-30 6762 Humboldt Phillipsville Comment
  HSC30350  Athyrium filix-femina var. cyclosorum Dale R. Gradek 1974-5-28 90 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  HSC55110  Athyrium filix-femina var. cyclosorum G. L. Clifton 1979-7-31 11854 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC92400  Athyrium filix-femina var. cyclosorum L. P. Janeway 1984-5-13 781 Humboldt Along Redwood House Rd. 1.5 mi. from Hwy. 36 229 Comment
  JEPS35158  Athyrium filix-femina var. cyclosorum Milo S. Baker 1923-7-23 123 Humboldt near Ferndale Comment
  HSC32331  Athysanus pusillus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5671 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC4339  Atriplex prostrata Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner 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
  UC181262  Avena barbata Joseph P. Tracy 1913-6-13 4114 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  CAS-BOT-BC66230  Azolla filiculoides Robert F. Thorne; P. Everett 1965-8-9 35325 Humboldt Clam Beach County Park 3 Comment
  CAS-BOT-BC98029  Baccharis pilularis Elmer I. Applegate 1922-9-19 3451 Humboldt Along the coast below Eureka Comment
  CAS-BOT-BC98033  Baccharis pilularis Henry M. Pollard 1947-8-30 s.n. Humboldt North river - road near Redcap Creek, Orleans region 1 Comment
  HSC12350  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-31 139 Humboldt Scotia Bluff area Comment
  UC581761  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 mi upstream from mouth Bear River 152 Comment
  SEINET2153801  Bellis perennis K. T. Harper 2002-1 2002 -5 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  HSC53890  Bensoniella oregona Griswold, Butler 1979-7-11 6384 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  JEPS26215  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  CAS-BOT-BC128916  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
  UC204587  Berberis aquifolium Joseph P. Tracy 1918-5-1 4894 Humboldt Kneeland Prairie 457 Comment
  UC9759  Berberis aquifolium Harley P. Chandler 1901-1 1277 Humboldt Hupa Indian Reservation 1097 Comment
  HSC65099  Berberis aquifolium var. aquifolium J. P. Smith, J. O. Sawyer 1973-5-12 6687 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC96208  Berberis aquifolium var. aquifolium J. McIntire, S. Lyon 2005-6-10 6 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 of F.S. Rd. NF1 1402 Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC41247  Berberis nervosa Brad Klipfel 1974-5-27 394 Humboldt Near Horse Mtn. Comment
  CAS-BOT-BC75805  Berberis pinnata Doris K. Kildale 1929-4-25 7433 Humboldt Kneeland Prairie. 792 Comment
  CAS-BOT-BC75808  Berberis pinnata Doris K. Kildale; L. B. Kildale 1930-5-12 9560 Humboldt McClellan Hill near Bridgeville. 609 Comment
  HSC70384  Berberis pinnata M. A. Baker 1980-6-7 1801 Humboldt Near Brush Mtn. 1128 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-BC412988  Bistorta bistortoides Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  RSA246926  Blechnum spicant R. F. Thorne, Percy C. Everett 1965-8-9 35289 Humboldt Big Lagoon. 3 Comment
  CDA42493  Blechnum spicant G. D. Barbe, T. C. Fuller 1974-6-18 1874 Humboldt Fern Canyon Road, 2.8 miles west of Highway 101, 5 miles south of Klamath River. 0 Comment
  UC562685  Boechera platysperma Joseph P. Tracy 1935-7-28 14319 1/2 Humboldt Head of Devils Hole Trinity Summit, Devils Hole 1828 Comment
  POM256471  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16010 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  HSC44123  Botrychium multifidum Thomas F. Lyon, Linda M. Barker 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  CHSC33047  Boykinia occidentalis James. P. Smith 1973-1-1 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  HSC96479  Boykinia occidentalis Gordon Leppig 1997-6-19 441 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC28192  Brassica rapa Thomas W. Nelson 1971-4-12 373 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  POM289092  Brickellia californica Lyman Benson 1928-7-11 456 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  JEPS18752  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC145430  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  HSC59213  Briza maxima Terry Roth 1979-5-29 90 Humboldt Off Alliance Rd. near Westwood Ct. at bottom of hillside Comment
  HSC9093  Briza minor R. Spellenberg 1965-6-13 1108 Humboldt Along highway, 2 mi. S of Hoopa Comment
  CAS-BOT-BC145571  Briza minor Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  JEPS7739  Brodiaea elegans subsp. elegans W. L. Jepson 1932-7-24 16385 Humboldt Mail Ridge Comment
  CAS-BOT-BC484218  Brodiaea elegans subsp. elegans Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC3025  Brodiaea elegans subsp. elegans G. Ghatala 1967-7-27 19 Humboldt Kneeland Comment
  JEPS7726  Brodiaea elegans subsp. elegans W. L. Jepson 1902-6 1960 Humboldt Hupa Road Redwood Creek (Redwood Creek) Comment
  POM277017  Brodiaea elegans subsp. elegans Lyman Benson 1929-7-19 1871 Humboldt Hills toward Matola River from Bull Creek. Comment
  UC666909  Brodiaea elegans subsp. elegans Joseph P. Tracy 1938-7-15 16060 Humboldt low sandy fields Eureka, Bucksport 9 Comment
  JEPS5498  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt on grassy slopes Northern Coast Ranges, McClellan Mountain 822 Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  UC1145184  Bromus carinatus var. carinatus Joseph P. Tracy 1937-6-17 15334 Humboldt at Eureka Eureka 15 Comment
  UC37586  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-8 5351 Humboldt near Bell's Springs Comment
  HSC26356  Bromus carinatus var. marginatus T. O. Osborne 1970-8-28 63 Humboldt Green Rock, 1 5/8 mi. N, 3/4 mi. W of Trinidad Light. Comment
  UCD59147  Bromus carinatus var. marginatus A. H. Shunk 1923-7-21 s.n. Humboldt Bridgeville. 328 Customs House. Comment
  UCD59215  Bromus carinatus var. marginatus R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UC1103286  Bromus carinatus var. maritimus Joseph P. Tracy 1933-6-6 12509 Humboldt Northern Coast Region, Trinidad Trinidad; Northern Coast Region, Trinidad 15 Comment
  UC249501  Bromus carinatus var. maritimus Joseph P. Tracy 1922-5-28 6054 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UCD58456  Bromus commutatus A. H. Murphy 1951-6-13 62 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  CAS-BOT-BC155427  Bromus hordeaceus Doris K. Kildale 1926-5-2 1902 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  HSC26618  Bromus laevipes J. P. Smith, Steve Selva 1970-6-14 3846 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  RSA126884  Bromus laevipes H. S. Yates 1936-6-17 5686 Humboldt 1 mile west of Bridgeville 183 Comment
  HSC9324  Bromus madritensis subsp. rubens R. Long 1964-5-16 Humboldt Tish-tang Ranger Station, Hoopa Comment
  UC1103357  Bromus sterilis Joseph P. Tracy 1920-5-31 5331 Humboldt near Carlotta (along Yager Creek); Northern Coast Ranges, Yager Creek 60 Comment
  HSC73757  Bromus tectorum Gail Newton 1980-7-11 1326 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC185519  Bromus vulgaris Joseph Burtt Davy; Walter C. Blasdale 1899-6-10 5406 Humboldt North Coast Ranges. Hubbards Station. Comment
  HSC44189  Bromus vulgaris Thomas W. Nelson, Jane P. Nelson 1977-7-4 3613 Humboldt Along road N from Alder Spring 1555 Comment
  UCR93380  Buddleja davidii Kathy Harper, Dane Karr 1994-6-14 s.n. Humboldt North Coast Range, 11-12 mi. north of Willow Creek on State Hwy 96, c. 0.25 mi. north of 'vista point' along Trinity River 30 Comment
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Apr 27 2007
  RSA10029  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  CAS-BOT-BC185314  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove. In the area of the Point. 1 Comment
  UCD57250  Calamagrostis koelerioides A. H. Murphy 1948-9-3 s.n. Humboldt southeast of Berry's summit, junction Horse Mtn. road and Horse Mtn. Mine roads. Comment
  HSC78988  Calandrinia ciliata L. P. Janeway 1984-4-11 727 Humboldt N Spit of Humboldt Bay, NW of the boat ramp and N of the Coast Guard Station 5 Comment
  HSC98087  Callitriche heterophylla var. bolanderi Cara Witte 2007-7-11 479 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 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
  CAS-BOT-BC80387  Calocedrus decurrens Doris K. Kildale 1927-5-13 3129 Humboldt Redwood Creek at Berry's 289 Comment
  HSC76306  Calocedrus decurrens Teresa Prendusi 1981-7-9 224 Humboldt Near Cedar Camp 1256 Comment
  CAS-BOT-BC80383  Calocedrus decurrens H. E. McMinn 1922-7-1 278 Humboldt 1 mile east of Dinsmore Comment
  UC1197681  Calochortus amabilis Joseph P. Tracy 1935-5-25 13895 Humboldt Dobbyn Creek 152 Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  HSC73066  Calochortus tolmiei M. A. Baker 1980-6-16 1946 Humboldt Near Onion Mtn. 1280 Comment
  UC1197677  Calochortus tolmiei Joseph P. Tracy 1922-4-30 5997 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS61766  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  CAS-BOT-BC32374  Calycadenia ciliosa Victor King Chesnut; Elmer Reginald Drew 1889-1-1 19899 Humboldt unspecified Comment
  UC1222961  Calycadenia fremontii Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  RSA167249  Calycadenia truncata subsp. microcephala Joseph P. Tracy 1941-9-1 17009 Humboldt In slide rock along Trinity River near Don Juan Point 335 Comment
  RSA54132  Calycadenia truncata subsp. scabrella H. M. Pollard 1946-8-31 s.n. Humboldt Orleans to Somes Bar Comment
  CAS-BOT-BC275367  Calycadenia truncata var. truncata Henry M. Pollard 1946-8-31 s.n. Humboldt Roadside near Perch Creek, near Orleans Comment
  HSC16572  Calypso bulbosa Norman H. Moe 1962-4-26 Humboldt Lanphere's Place Comment
  HSC65202  Calypso bulbosa T. Jimerson, J. Pageau 1979-5-1 446 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC32932  Calyptridium monospermum Thomas W. Nelson 1973-5-30 973 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC44594  Calyptridium monospermum Brad Klipfel 1973-7-15 190 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562487  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-8-30 13006 Humboldt Horse Mountain , Horse Mountain (Northern Coast Ranges) 1310 Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  BLMAR68  Calystegia soldanella Jennifer Anthony-Wheeler 1994-5-18 68 Humboldt Samoa/manilla dunes, growing in dune mat with I the Samoa Rec. area wetland 6 Comment
  RSA337437  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35307 Humboldt Big Lagoon. 3 Comment
  HSC34968  Camassia quamash subsp. linearis Thomas W. Nelson 1975-5-24 1876 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC33058  Camassia quamash subsp. linearis Thomas W. Nelson 1974-5-7 1237 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  HSC64502  Camissonia cheiranthifolia J. P. Smith 1971-10-6 4944 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA146360  Camissonia cheiranthifolia subsp. cheiranthifolia G. J. Goodman 1957-9-3 6550 Humboldt On the strand 2 miles south of Orick. Comment
  OBI36380  Camissoniopsis cheiranthifolia David J. Keil 1983-7-1 17283 Humboldt Ca. 5 mi NW of Petrolia along mattole Rd Comment
  POM225298  Campanula prenanthoides P. A. Munz 1936-8-10 14338 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  SEINET10873257  Campanula prenanthoides Etienne 1972-9-4 Etienne s.n. Humboldt Lumber road to Klamath River, about 8 miles inland and 1 mile north of the Humboldt County line 30 Comment
  HSC56399  Campanula scouleri Griswold, Butler 1979-7-11 6978 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SEINET10463588  Campanula scouleri Rattan 1883-6-29 RATTAN s.n. Humboldt HILLS IN FORESTS NEAR REDWOOD CREEK Comment
  UC168957  Campanula scouleri Joseph P. Tracy 1908-6 2858 Humboldt opposite Buck Mountain (in woods); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC492265  Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC44638  Capsella bursa-pastoris Diane L. Reed 1978-5-7 67 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  CAS-BOT-BC37435  Cardamine californica Lincoln Constance; Reed Clark Rollins 1942-5-20 2998 Humboldt Eel River, 1 mile north of Pepperwood. 45 Comment
  HSC59052  Cardamine californica Thomas Wood 1979-4-20 122 Humboldt Along frontage road, parallel and E of Hwy. 101 at Patrick Creek Dr. intersection, S of Patrick Creek 6 Comment
  HSC6690  Cardamine californica D. E. Anderson 1962-3-17 1934 Humboldt 4 mi. S of Lone Star Ranch Comment
  LA204278  Cardamine californica Parks; Tracy 1931-3-26 916 Humboldt Lower Van Duzen River 60 Comment
  UC162351  Cardamine californica Joseph P. Tracy 1905-4-2 2159 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  UC1116221  Cardamine californica var. sinuata Joseph P. Tracy 1948-4-11 17963 Humboldt 1 mi e Dyerville (near South Fork Station); e of Dyerville, near South Fork Station 60 Comment
  SEINET3377729  Cardamine nuttallii var. gemmata K. T. Harper 2002-1 2002 -6 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  UC1199207  Cardamine oligosperma Joseph P. Tracy 1920-5-18 5328 Humboldt 5 mi from Dyerville (South Fork Eel River, Forest Lodge, along Eel River from South Fork to Scotia); Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  JEPS79828  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  CAS-BOT-BC384765  Cardionema ramosissimum Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  RSA183498  Cardionema ramosissimum J. R. Woodside 1963-5-11 11 Humboldt 1.25 miles north of Fairhaven. Comment
  HSC79422  Carduus pycnocephalus subsp. pycnocephalus Kenneth Clark 1980-3-22 522 Humboldt Above Deadman's Gulch 107 Comment
  UC577397  Carduus tenuiflorus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow Bald Mt. 762 Comment
  CAS-BOT-BC18519  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  HSC95392  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt PalCo land, .5 mi. W of Fox Creek Rd., W side of large swamp 70 Comment
  UC1103574  Carex arcta J. P. Tracy 1903-8-9 1931 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC19217  Carex barbarae Henry M. Pollard 1945-8-26 s.n. Humboldt Near Orleans Hotel, Klamath River Canyon. Comment
  CAS-BOT-BC19213  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC19437  Carex bolanderi Robert F. Thorne; P. Everett 1965-8-5 35128 Humboldt Wailaki Recreation Site. 518 Comment
  UC249760  Carex bolanderi Joseph P. Tracy 1923-6-20 6332 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC249736  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  UC1103599  Carex concinnoides Joseph P. Tracy 1927-6-19 8202 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 15 Comment
  HSC95435  Carex cusickii Gordon Leppig 2001-6-16 1569 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC1100648  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt marsh and bog land at the southern outskirts of Eureka Eureka Comment
  HSC103329  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7116 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET7556710 Image available Carex densa Andrew L. Hipp 1999-5-31 458 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. 503 Comment
  UC303071  Carex densa Joseph P. Tracy 1912-7-31 3906 Humboldt on nw slope of Buck Mountain Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  CAS-BOT-BC34974  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC562272  Carex echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC197209  Carex echinata subsp. phyllomanica Joseph P. Tracy 1913-7-13 4364 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC203893  Carex echinata subsp. phyllomanica Joseph P. Tracy 1918-7-21 5083 Humboldt around Humboldt Bay; Northern Coast Ranges, Humboldt Hill 91 Comment
  CAS-BOT-BC20876  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  UC562640  Carex gracilior Joseph P. Tracy 1935-6-8 13940 Humboldt at Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC22310  Carex harfordii Joseph Prince Tracy 1938-7-18 16083 Humboldt At Eureka. 30 Comment
  JEPS75426  Carex hendersonii W. L. Jepson 1932-8-2 16474 Humboldt Deer-foot Flat Dyerville, Bull Creek, Deer-foot Flat 88 Comment
  CAS-BOT-BC28163  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt trinity Summit, Open places at Corral Prairie. Comment
  UCR52391  Carex laeviculmis L. P. Janeway 1983-5-15 296 Humboldt North Coast, Riparian bend of Mad River on south side, near the Fish Hatchery Road & across from Blue Lake 24 Comment
  HSC103142  Carex lenticularis var. lipocarpa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1068 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31662  Carex lyngbyei Joseph Prince Tracy 1935-6-8 13945 Humboldt Bordering Freshwater Slough, Humboldt Bay. 6 Comment
  UC1115809  Carex lyngbyei Joseph P. Tracy 1938-7-15 16069 Humboldt mouth Eel River 3 Comment
  SEINET7483597 Image available Carex mendocinensis L. P. Janeway 2003-1 7944 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on SW side below Titlow Hill Road,2.9 km southeast of Titlow Hill. ;Grouse Mountain quad 1512 Comment
  CHSC85571  Carex multicostata L. P. Janeway 2003-7-30 7945 Humboldt High North Coast Ranges. Edge of seepy area at upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. 1494 Comment
  HSC70849  Carex multicostata M. A. Baker 1980-6-7 1826 Humboldt Near Ammon Creek 732 Comment
  HSC75764  Carex multicostata Teresa Prendusi 1981-7-21 289 Humboldt Near Whiteys Peak 1646 Comment
  UC1103091  Carex multicostata Joseph P. Tracy 1933-7-25 12847 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  JEPS80024  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  HSC44411  Carex nudata Thomas W. Nelson, Jane P. Nelson 1977-5-30 3407 Humboldt Mad River at Andersons Ford N of Dinsmore on the McKeown Ranch 610 Comment
  JEPS79852  Carex nudata Joseph P. Tracy 1935-6-22 13959 Humboldt mouth of Larrabee Creek (North Coast Ranges, Eel River); North Coast Ranges, Eel River 45 Comment
  CHSC42989  Carex obnupta L. P. Janeway 1987-7-31 2548 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  CHSC88893  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  JEPS63691  Carex obnupta William S. Cooper 1925-7-29 112 Humboldt Samoa Comment
  HSC59577  Carex obnupta Rick Lundquist 1979-5-18 112 Humboldt Clam Beach Ponds 0 Comment
  CAS-BOT-BC119263  Carex ovalis Joseph Prince Tracy 1937-8-7 15617 Humboldt Murphy Ridge on Bald Mt. 914 Comment
  CAS-BOT-BC119267  Carex ovalis Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie on ridge E or Orick. 548 Comment
  UC562553  Carex ovalis Joseph P. Tracy 1936-6-28 15012 Humboldt near Murphy Meadow; Bald Mt. 914 Comment
  UC562643  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC562661  Carex pachystachya Joseph P. Tracy 1935-6-8 13938 Humboldt Eureka Northern Coast Ranges 0 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
  UC1103580  Carex pachystachya Joseph P. Tracy 1927-6-19 8204 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC562665  Carex pachystachya Joseph P. Tracy 1932-6-19 10242 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  UC1103124  Carex pansa J. P. Tracy 1900-6-5 853 Humboldt immediate vicinity Eureka 0 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
  CAS-BOT-BC28309  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  HSC71729  Carex serratodens M. A. Baker 1980-6-26 2452 Humboldt Near Sims Creek 610 Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  HSC44120  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1976-6-15 2735 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC48739  Carex subfusca Brad Klipfel 1973-6-10 64 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562340  Carex tumulicola Joseph P. Tracy 1935-6-23 13975 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC99381  Carex utriculata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 30 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC562332  Carex utriculata Joseph P. Tracy 8988 Humboldt South Fork Mountain; McKay Camp 1676 Comment
  CAS-BOT-BC115065  Carex vesicaria Joseph Prince Tracy 1934-7-18 13428 Humboldt In shallow pond, Grouse Mountain. 1524 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
  CAS-BOT-BC249130  Castilleja affinis Doris K. Kildale 1927-6-26 3597 Humboldt Patrick's [Patricks] Point Comment
  CAS-BOT-BC249132  Castilleja affinis Alice Eastwood; John Thomas Howell 1937-6-23 4837 Humboldt 11 miles from Kneeland on road to Yager Comment
  HSC79475  Castilleja affinis subsp. litoralis Kenneth Clark 1980-4-18 588 Humboldt Dead Man's Gulch 12 Comment
  JEPS3694  Castilleja affinis subsp. litoralis L. R. Heckard and P. C. Silva 1952-5-10 271 Humboldt just s Humboldt Bay; Table Bluff Comment
  JEPS26222  Castilleja ambigua subsp. ambigua Joseph P. Tracy 1921-7-10 5853 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  HSC95070  Castilleja ambigua subsp. humboldtiensis Lila Tauzer 2002-5-3 45 Humboldt Arcata Marsh 0 Comment
  JEPS93175  Castilleja ambigua subsp. humboldtiensis Margriet Wetherwax and Kevin Downing 1993-8-9 2455 Humboldt just n Eureka (s side of Eureka Slough, e side of Humboldt Bay, near Bayside Rd and Myrtle, just past Pigeon Point, e side of road); Humboldt Bay 5 Comment
  HSC64182  Castilleja applegatei subsp. pinetorum J. O. Sawyer, M. A. Ericksen 1979-6-23 3393 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC20838  Castilleja attenuata R. T. Forester 1963-5-6 43 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC38395  Castilleja attenuata J. D. Ackerman 1975-6-10 447 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  UC673218  Castilleja attenuata Lincoln Constance and Reed C. Rollins 1942-5-12 2891 Humboldt 1 mi s Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  JEPS108698  Castilleja exserta C. Sander 2005-8-16 CA 330 81 Humboldt Manila Dunes 3 Comment
  UC604630  Castilleja exserta subsp. latifolia Joseph P. Tracy 1938-7-12 16058 Humboldt Table Bluff; w of lighthouse 6 Comment
  HSC56234  Castilleja miniata Overton 1979-8-1 12314 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC76048  Castilleja miniata Overton, Butler 1979-8-2 12544 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS8622  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; Northern Coast Ranges 1432 Comment
  HSC44430  Ceanothus arcuatus Brad Klipfel 1975-5-24 638 Humboldt Horse Mtn. Comment
  SEINET10778147  Ceanothus arcuatus Dieter H. Wilken, E. L. Painter 2007-6-4 Wilken 16738 Humboldt Titlow Rd, 1.3 linear km SW of summit of Horse Mtn, W of head of Horse Mtn Crk. 1325 Comment
  HSC97479  Ceanothus cordulatus Cara Witte 2007-5-29 135 Humboldt Along National Forest 1 on Kinsey Ridge. 1278 Comment
  UC1193335  Ceanothus cordulatus P. Zinke 1950-10-9 77 Humboldt King Peak King Peak Quad. 28D1 1280 Comment
  CAS-BOT-BC126841  Ceanothus cuneatus Thomas Nelson 1977-6-15 3453 Humboldt unspecified 1371 Comment
  HSC18275  Ceanothus cuneatus Francis Winter 1960-4-24 Humboldt Along rd., French Camp Ridge 915 Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC49657  Ceanothus foliosus var. foliosus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Ridge near Needle Roack Cross Roads, SW corner of Humboldt Co. Comment
  HSC37052  Ceanothus incanus R. Sutherland 1975-6-3 1 .3675 Humboldt 396 Comment
  HSC43194  Ceanothus incanus R. Sutherland 1975-5-13 9 .13575 Humboldt 579 Comment
  UC1174846  Ceanothus incanus P. C. Everett and E. K. Balls 1959-10-26 23977 Humboldt 6 mi se Honeydew (on Old Coast Rd to Ettersburg) 518 Comment
  BLMAR669  Ceanothus integerrimus Jennifer Wheeler 2013-6-3 669 Humboldt Lacks Creek, Pine Ridge Rd. 1097 Comment
  CAS-BOT-BC63684  Ceanothus integerrimus Harley P. Chandler 1901-6-1 1338 Humboldt Hupa Indian Reservation. 152 Comment
  CHSC31293  Ceanothus integerrimus Mark Stopher 1980-6-4 107 Humboldt Near Elk River near Hwy 101 bridge. 1 Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  UC1198006  Ceanothus integerrimus Joseph P. Tracy 1937-6-26 15365 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  CAS-BOT-BC51225  Ceanothus parryi C. Hart Merriam 1925-5-25 s.n. Humboldt Highway, South Fork Eel River Comment
  HSC18310  Ceanothus parryi P. J. Zinke 1950-8-25 158 Humboldt Salmon Creek 3 mi W of Miranda 91 Comment
  HSC37084  Ceanothus parryi R. Sutherland 1975-5-30 4 .30575 Humboldt 320 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  SBBG4431  Ceanothus parryi M. Van Rensselaer 1941-4-29 1644 Humboldt Redwood Hwy near Garberville Comment
  SBBG4535  Ceanothus parryi H. and M. Dearing 1933-5-15 979 Humboldt near Garberville Comment
  UC1193305  Ceanothus parryi P. Zinke 1950-8-26 159 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 Comment
  CAS-BOT-BC52043  Ceanothus prostratus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road West from Hoopa Valley, in open forest of yellow and sugar pines 914 Comment
  HSC43186  Ceanothus pumilus R. Sutherland 1976-4-17 3 .17476 Humboldt 549 Comment
  RSA46726  Ceanothus pumilus Doris K. Kildale 1937-8-15 15334 Humboldt High Divide Comment
  CAS-BOT-BC52988  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Sandy bluff above Patric Point State park, near Big Lagoon Comment
  HSC18331  Ceanothus thyrsiflorus A. E. Inman 1962-5-25 Humboldt S bank of Mad River, 50 yds W of Hwy. 299 bridge Comment
  HSC18335  Ceanothus thyrsiflorus W. K. Parks Jun 1932 1357 Humboldt Trinidad Comment
  HSC37064  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 5 .28575 Humboldt Horse Mtn., N Fork Horse Mtn. Creek 457 Comment
  UC668160  Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 60 Comment
  CAS-BOT-BC52869  Ceanothus velutinus J. W. Tilden 1947-8-25 s.n. Humboldt Near summit of Red Mountain above Klamath River opposite Shelton Butte 822 Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  CDA7083  Centaurea calcitrapa T. C. Fuller 1960-8-25 4974 Humboldt Around Pacific Lumber Company barn, across Eel River from South Fork. 0 Comment
  UC1222953  Centaurea cyanus Joseph P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville and head of S. Yager Bridgeville Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  SEINET200746  Centaurium erythraea Joseph P. Tracy 1934-7-9 13347 Humboldt Dobbyn Creek. Comment
  RSA120711  Centaurium muehlenbergii S. S. Tillett 1956-7-6 607 Humboldt Above Klamath River, along Ishi Rish Road, one mile north of Orleans. 168 Comment
  CDA111  Centaurium tenuiflorum D. G. Kelch 2007-7-25 7 .504 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  UC562467  Centunculus minimus Joseph P. Tracy 1935-5-25 13834 Humboldt Fort Seward 106 Comment
  HSC97652  Cerastium arvense Juha Pykala, D. H. Norris 1987-5-20 749 Humboldt 7.5 mi. S of Ferndale along Wildcat Rd. near Green Pond Ranch 450 Comment
  UC8237  Cerastium arvense J. Burtt Davy 1899-6-10 5394 Humboldt Hubbard's Station North Coast Ranges, Hubbard's Station Comment
  UC8223  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  HSC100708  Cerastium pilosum Carl C. Marshall Jun 1888 61 Humboldt No data. Comment
  UC62197  Ceratophyllum demersum W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  POM126513  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  UC249729  Cercis occidentalis Joseph P. Tracy 1921-9-4 5950 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC135534  Cercocarpus betuloides var. betuloides Doris K. Kildale 1928-12-30 6770 Humboldt Flat on South fork of Eel River, 1 1/2 miles west of Garberville Comment
  UC1198736  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1903-5-23 1904 Humboldt along Eel River, at Alder Point Eel River; Northern Coast Ranges, , Alder Point 152 Comment
  CAS-BOT-BC276489  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain 1524 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  HSC91616  Chamaecyparis lawsoniana Susan H. Bicknell 1987-8-29 Humboldt Patrick's Point State Park, near Penn Creek Comment
  HSC1196  Chamaecyparis lawsoniana Curt M. Johnson 1966-3-11 115 Humboldt Flood plain of Bull Creek at Bull Creek 152 Comment
  UCSB12070  Chamaecyparis lawsoniana Howe, J. 1938-3-30 Humboldt Humboldt County Comment
  HSC23490  Chamerion angustifolium subsp. circumvagum R. A. Vanbianchi 1971-9-10 82 Humboldt Along Fieldbrook Rd., 1/2 mi. from Jct. with old Hwy. 299 Comment
  UC1197019  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1934-7-7 13307 Humboldt Elk River Valley 30 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  SEINET200795 Image available Cheilanthes gracillima J. P. Tracy 1919-9-23 5289 Humboldt Trinity Summit 1830 Comment
  HSC97579  Cheilanthes gracillima Cara Witte 2007-5-23 97 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  UC275478  Chenopodium ambrosioides Joseph P. Tracy 1925-7-26 7212 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 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
  RSA478470  Chenopodium botrys T. Gertrude Williamson 1924-7-16 s.n. Humboldt Lane s Flats; bed of Eel River. Comment
  UC1197598  Chimaphila menziesii Joseph P. Tracy 1932-7-14 10568 Humboldt woods near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC55214  Chimaphila umbellata Walter Overton 1979-8-1 12371 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SD42334  Chimaphila umbellata Carl B. Wolf 1937-8-12 9209 Humboldt North Coast Range, South Fork Mt., 6/10 mi. So. of Blake Lookout 1676 Comment
  SJSU913A  Chimaphila umbellata J. W. Tilden 1946-6-20 1011 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  UC1197595  Chimaphila umbellata Joseph P. Tracy 1916-6-25 4741 Humboldt ridge between Little River and Redwood Creek; Northern Coast Ranges 304 Comment
  HSC98053  Chlorogalum pomeridianum var. pomeridianum Cara Witte 2007-7-17 541 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1302 Comment
  CAS-BOT-BC236918  Chloropyron maritimum subsp. palustre Joseph P. Tracy 1938-7-15 16064 Humboldt At Fields Landing, around Humboldt Bay 3 Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  JEPS12245  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  UC1197341  Cicuta douglasii Joseph P. Tracy 1937-8-12 15662 Humboldt Snow Camp 1402 Comment
  HSC96494  Cicuta douglasii Gordon Leppig 1997-8-13 637 Humboldt Big Lagoon County Park 3 Comment
  SEINET8726116 Image available Circaea alpina Unknown 1936-1 s.n. Humboldt Damp wooded bank of Yager creek at 2400 feet altitude, Humboldt County, California. 732 Comment
  UCD20404  Circaea alpina subsp. pacifica Donald C. Hagar 1957-8-27 218 Humboldt 8.5 miles NE of Hoopa, Domingo Block 'e'. 1371 Comment
  SEINET200612 Image available Cirsium andrewsii H. E. Parks, Joseph P. Tracy 1934-7-13 13383 Humboldt Vicinity of Trinidad. Comment
  NY370205  Cirsium arvense L. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  OBI75077  Cirsium arvense Thomas S. Elias, Barbara A. Elias 1987-8-26 10632 Humboldt Fernbridge, 0.5 mi S of rte 101; Riparian vegetation along WEst bank of Eel River; about .5 mi N of bridge on wide gravel bar Comment
  POM225838  Cirsium arvense J. T. Howell 1931-6-17 6724 Humboldt Redwood Highway, 1.5 miles north of Orick Comment
  BLMAR404  Cirsium douglasii var. breweri Clara Sander 2005-7-1 404 Humboldt Horse Mtn, Titlow hill road: growing along the roak banks 1066 Comment
  CDA1218  Cirsium douglasii var. douglasii T. C. Fuller 1962-8-6 9352 Humboldt Hwy 299, 3.4 miles east of Berry Summit. Comment
  OBI36336  Cirsium occidentale var. candidissimum David J. Keil 1983-7-1 17273 Humboldt Ca 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  HSC39065  Cirsium occidentale var. candidissimum R. Sutherland 1976-6-23 1 .23676 Humboldt Telegraph Ridge 457 Comment
  JEPS59230  Cirsium occidentale var. candidissimum W. L. Jepson 1902-6-20 1893 Humboldt Ft. Seward Ranch ridge 1219 Comment
  SEINET11836350  Cirsium pastoris J. P. Tracy 1942-1 17302 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC228803  Cistanthe umbellata R. K. Gierisch; D. H. Esplin 1969-7-1 3528 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  UC35400  Clarkia amoena Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC902167  Clarkia amoena Joseph P. Tracy 1948-8-22 18110 Humboldt Table Bluff Ridge 91 Comment
  POM92414  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles N of Garberville, along Eel River. Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  BLMAR7  Clarkia gracilis subsp. tracyi Fredric Hrusa 1993-6-17 7 Humboldt Red mountain, small colony summit of rd thru serpentine.Uncommon 900 Comment
  CAS-BOT-BC172516  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  CAS-BOT-BC172509  Clarkia purpurea subsp. quadrivulnera J. P. Tracy 1933-7-3 12634 Humboldt Trinity River at Willow Creek 152 Comment
  UCSB23037  Clarkia purpurea subsp. quadrivulnera Tracy, Joseph 1936-6-10 Humboldt south fork of Trinity river; mountain slopes west of its mouth 457 Comment
  JEPS1957 Image available Clarkia purpurea subsp. viminea W. L. Jepson 1902-8-13 1971 Humboldt near Redwood Creek; Hupa Road; Hupa Road, near Redwood Creek, Humboldt Co. Comment
  CAS-BOT-BC164824  Clarkia rhomboidea Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  HSC17709  Claytonia parviflora subsp. parviflora Elrid H. Spinas 1948-5-22 34 Humboldt Horse Mtn. Comment
  CAS-BOT-BC440091  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 367 Humboldt Horse Mountain, ca. 150 m N. of the junction between Forest Rds. 5N10 and 6N01. On the road shoulder of 5N10. 1371 Comment
  CHSC10779  Claytonia sibirica Lowell Ahart 1968-6-1 Humboldt Near Pepperwood. 45 Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  SEINET11942404  Claytonia sibirica J. P. Tracy 1950-1 18960 Humboldt Fern Spring, Happy Camp Mountain (in Trinity Summit Range, 6 mi NE of Hawkins Bar) 1280 Comment
  UC672986  Claytonia sibirica Joseph P. Tracy 1930-7-16 8921 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  JEPS43173  Claytonia washingtoniana Joseph P. Tracy 1933-5-18 12193 Humboldt 5 mi w Blue Lake (along Mad River); Mad River 30 Comment
  CHSC3493  Clintonia andrewsiana Roger Jaegel 1966-5-8 151 Humboldt Located twenty-five miles southeast of Eureka, in Richardson's Grove Redwood Park. Comment
  SBBG970  Clintonia andrewsiana H. and M. Dearing 1931-5-16 251 Humboldt Weott Comment
  HSC72683  Clintonia uniflora J. P. Smith 1977-7-3 9265 Humboldt Onion Lake Comment
  HSC99448  Clintonia uniflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 98 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC41804  Collinsia grandiflora W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  UC1196751  Collinsia heterophylla Joseph P. Tracy 1927-5-8 7988 Humboldt vicinity of Garberville 121 Comment
  HSC101977  Collinsia linearis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 874 Humboldt Patterson Meadows 1566 Comment
  UC1196760  Collinsia parviflora Joseph P. Tracy 1929-7-4 8623 Humboldt French Camp Ridge 1066 Comment
  UC604633  Collinsia parviflora Joseph P. Tracy 1938-6-13 15922 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UC1196763  Collinsia rattanii Joseph P. Tracy 1908-6 2704 Humboldt opposite Buck Mountain (Northern Coast Ranges, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC48992  Collinsia rattanii M. A. Baker 1979-5-23 757 Humboldt Comment
  UC582448  Collinsia torreyi var. wrightii Joseph P. Tracy 1932-7-12 10467 Humboldt Trinity Summit, Head of Brett Hole Head of Brett Hole; Trinity Summit, Head of Brett Hole 1828 Comment
  HSC56166  Collomia grandiflora G. L. Clifton, Griswold 1979-8-1 12053 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  BLMAR164  Collomia heterophylla Donald Hazlett 1994-6-7 164 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC133645  Collomia heterophylla Joseph P. Tracy 1909-7-31 3046 Humboldt on gravelly hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1537481  Collomia heterophylla Gordon H. True 1936-5-11 458 Humboldt 10 mi w Miranda (w slope); Salmon Creek 457 Comment
  BLMAR298  Comarum palustre Jennifer Anthony-Wheeler 2002-7-23 298 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  HSC69531  Conium maculatum R. Kalal 1980-6-1 4 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  UC1196452  Corallorhiza maculata Joseph P. Tracy 1935-7-25 14252 Humboldt Brett Hole Trinity Summit (lower end) 1584 Comment
  UC1225828  Corallorhiza maculata Joseph P. Tracy 1948-8-15 18150 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  HSC95706  Corallorhiza mertensiana Juha Pykala, D. H. Norris 1987-6-10 1467 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  SEINET200684 Image available Corallorhiza striata var. striata Joseph P. Tracy 1913-6-14 4131 Humboldt Lower foothills of Buck Mountain, on its northwest slope 762 Comment
  CAS-BOT-BC101141  Corethrogyne filaginifolia Alice Eastwood 1923-8-14 12316 Humboldt Samoa Comment
  HSC75232  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 Humboldt End of country road (Lanphere Rd.)on Hunt property. Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC169038  Corethrogyne filaginifolia Joseph P. Tracy 1912-7-21 3773 Humboldt Alton Northern Coast Region 30 Comment
  UC581781  Corethrogyne filaginifolia J. P. Tracy 1936-8-17 15157 Humboldt bottom Arcata 15 Comment
  RSA275304  Corethrogyne filaginifolia var. californica J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just west of drag strip Comment
  CAS-BOT-BC209755  Cornus glabrata L. R. Abrams 1918-6-16 7162 Humboldt Willow Creek Comment
  HSC100453  Cornus nuttallii Carl C. Marshall Jun 1886 283 Humboldt Bald Hills. Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  JEPS50174  Cornus sessilis Joseph P. Tracy 1922-4-30 6040 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  HSC38648  Coronopus didymus J. P. Smith 1970-11-18 4629 Humboldt HSU campus Comment
  HSC93467  Cortaderia jubata Gordon Leppig 1998-10-26 1107 Humboldt Arcata, Bayside Rd. at Crescent Way 6 Comment
  UC176170  Corylus californica Joseph P. Tracy 1912-3-3 3560 Humboldt on West place, between Eureka and Fields Landing Northern Coast Region 0 Comment
  SBBG58030  Corylus cornuta subsp. californica R. Hartwell 1938-8-4 Humboldt Bull Crk Flat, hillside opposite the store Comment
  CAS-BOT-BC176451  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast) 10 Comment
  RSA729895  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast). 10 Comment
  UC485352  Cotula coronopifolia Joseph P. Tracy 1912-7-21 3775 Humboldt Alton; Northern Coast Region 30 Comment
  UC492243  Crassula connata var. subsimplex Joseph P. Tracy 1931-3-26 9293 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  CAS-BOT-BC291489  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3396 Humboldt Just south of Trinidad Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  HSC49085  Crocosmia X crocosmiiflora Patricia Shesgreen 1978-8-5 131 Humboldt Arcata, on Spring St. between 16th and 17th Sts. Comment
  UC175691  Cryptantha flaccida Joseph P. Tracy 1908-6 2758 Humboldt opposite Buck Mountain (at Little Van Duzen Bridge); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  UC1239654  Cryptantha torreyana Joseph P. Tracy 1921-5-30 5497 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SD90539  Cuscuta pacifica var. pacifica Robert F. thorne, P. Everett 1965-8-8 35280 Humboldt North edge of Eureka, east of Hwy. 101 3 Comment
  UC922008  Cynodon dactylon Joseph P. Tracy 1948-8-22 18108 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  CHSC26301  Cynoglossum grande L. Greenhill 1977-4-5 8 Humboldt 15 ft. from highway 36 on n side, 3 miles w of Bridgeville. 182 Comment
  UC1222259  Cynoglossum occidentale Joseph P. Tracy 1949-8-26 18508 Humboldt 6 mi. n.e. Hawkin's Bar (Happy Camp Mt.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  POM313169  Cynosurus cristatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1195 Humboldt Southern outskirts of Eureka Comment
  UC1100178  Cynosurus cristatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1195 Humboldt marsh and bog land at the southern outskirts Eureka Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  HSC65448  Cynosurus echinatus J. P. Smith 1973-5-26 6795 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC73571  Cynosurus echinatus Gail Newton 1980-7-14 1508 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA137066  Cynosurus echinatus I. L. Wiggins 1957-6-21 14142 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  UC668035  Cyperus eragrostis Joseph P. Tracy 1932-10-30 10897 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC55131  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-1 11958 Humboldt Near Mill Creek, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC70542  Cystopteris fragilis Ira L. Wiggins 1957-6-21 14138 Humboldt E side of road, 1 mi. S of Garberville Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  HSC14680  Cytisus multiflorus R. A. Magie 1964-5-3 56 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  SEINET8477238  Cytisus scoparius D. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of snowline fox farm (Larabee Valley 7 1/2 USGA quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  CDA4074  Cytisus scoparius T. C. Fuller 1961-3-22 5939 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  HSC58538  Dactylis glomerata Overton, Butler 1979-7-23 9462 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC79501  Dactylis glomerata Kenneth Clark 1980-6-14 685 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  SEINET200652 Image available Danthonia californica Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek Iaqua. 610 Comment
  BLMAR38  Danthonia californica Brad Barr 1982-6-21 38 Humboldt King range, hidden valley enclosure Comment
  CAS-BOT-BC420361  Darmera peltata Volney Rattan 1882-1-1 s.n. Humboldt unspecified Comment
  HSC26003  Datisca glomerata Thomas W. Nelson 1970-9-3 212 Humboldt Mad River. Comment
  UC1198471  Datisca glomerata Joseph P. Tracy 1912-8-3 3972 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  CDA9725  Daucus carota D. G. Kelch 2007-7-25 7 .508 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  CHSC26758  Daucus carota M. S. Taylor 1977-8-5 1432 Humboldt Around bridge over Eeel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  POM232322  Daucus pusillus I. L. Wiggins 1930-7-11 4678 Humboldt Near Samoa Comment
  HSC24969  Delphinium decorum subsp. tracyi Elrid H. Spinas 1948-5-15 2 Humboldt Horse Mtn. Comment
  HSC98756  Delphinium decorum subsp. tracyi Cara Witte 2008-7-2 816 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  UC160929  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1289 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  UC467723  Delphinium decorum subsp. tracyi Mrs. M. H. Manning 1902-3-31 Humboldt open gravelly place across supply creek <on> west side of road Hupa Comment
  SD46536  Delphinium hesperium E. K. Balls, L. W. Lenz 1956-6-12 21665 Humboldt 9.1 miles ne from Blue Lake along U.S. Hwy. 299, Arcata to Willow Creek. 487 Comment
  HSC100614  Delphinium hesperium Carl C. Marshall Jun 1886 80 Humboldt Redwood region. Comment
  HSC36195  Delphinium menziesii John Rehling 1975-5-15 83 Humboldt 8 mi. W of Ferndale on the Mattole Rd. Comment
  SD37307  Delphinium nudicaule Marie Cummings 1933-5-22 109 Humboldt Near Blockburg Comment
  UCSB28370  Delphinium nudicaule Phelps, M. 1972-3-19 Humboldt 0.4 mi. east of Elk Point; near Basin Creek; Somerville Ranch; Garberville 457 Comment
  CDA24232  Delphinium nuttallianum K. Eickhoff, C. M. Witte 2005-6-15 12 Humboldt Northwestern California; 14.1 miles south of Highway 299 on NFI, 0.25 mile northeast of Grouse Mountain. Comment
  CHSC1447  Delphinium trolliifolium A. Small 1954-6-3 Humboldt Near Ferndale. Comment
  UC162819  Delphinium trolliifolium Joseph P. Tracy 1908-6 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC24424  Delphinium trolliifolium R. Spellenberg 1965-6-14 1131 Humboldt 3.5 mi. S of Kneeland, 1.5 mi. N of junction with Barry Rd. Comment
  RSA68777  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt Valley of S Yager Creek Comment
  RSA75637  Delphinium trolliifolium Albert M. Vollmer, L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec. Comment
  UC1196338  Delphinium trolliifolium Joseph P. Tracy 1933-5-20 12269 Humboldt hillsides Northern Coast Ranges, Bear River Ridge 609 Comment
  CDA14362  Deschampsia cespitosa P. Haggard 1996-7-8 s.n. Humboldt North Coast; North Coast Railroad right-of-way, Eureka. 0 Comment
  UCSC000008  Deschampsia cespitosa Randall Morgan 2005-6-24 s.n. Humboldt 1 mi W of Bayside - Eureka Comment
  HSC102187  Deschampsia danthonioides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1101 Humboldt Andy's Camp 1564 Comment
  SBBG59443  Deschampsia elongata H. E. Parks -May-1931 3646 a Humboldt Big Lagoon Comment
  UC70915  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5516 B Humboldt near Camp Grant Camp Grant Comment
  UC146102  Dicentra formosa J. P. Tracy 1904-4-17 2013 Humboldt immediate vicinity Eureka 0 Comment
  HSC26869  Dicentra formosa Clifton Raymond Chesbrough 1973-6-19 93 Humboldt 1/2 mi. N of College Cove Comment
  HSC79505  Dicentra formosa Kenneth Clark 1980-3-24 541 Humboldt Dead Man's Gulch, Shelter Cove 69 Comment
  CAS-BOT-BC483664  Dichelostemma capitatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC102206  Dichelostemma ida-maia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1121 Humboldt Andy's Camp 1564 Comment
  HSC74700  Dichelostemma ida-maia Gail Newton 1981-8-5 2371 Humboldt Near Bug Creek, E Fork 914 Comment
  UC666911  Dichelostemma ida-maia Joseph P. Tracy 1927-5-30 8083 Humboldt Garberville 152 Comment
  CAS-BOT-BC501015  Dichelostemma ida-maia W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River Comment
  SEINET13768897 Image available Diplacus aurantiacus C. L. Hitchcock, J. S. Martin 1939-1 5439 Humboldt Shelter Cove Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  CAS-BOT-BC208657  Distichlis spicata L. R. Abrams 1922-6-25 8250 Humboldt Humboldt Bay east of Arcata Comment
  HSC102078  Dodecatheon jeffreyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 980 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1222171  Dodecatheon jeffreyi Joseph P. Tracy 1951-6-14 19406 Humboldt Snow Camp 1402 Comment
  JEPS14452  Downingia elegans Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda 121 Comment
  UC168983  Downingia willamettensis Joseph P. Tracy 1911-6-30 3271 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS1611  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  RSA0011669  Drosera rotundifolia Patricia Wilder 1968-8-21 4380 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  UC585623  Drymocallis glandulosa var. reflexa Joseph P. Tracy 1935-7-23 14164 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  JEPS47204  Drymocallis rhomboidea Joseph P. Tracy 1927-5-14 8002 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC99640  Dryopteris arguta T. Jimerson, J. Pageau 1979-7-31 700 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  JEPS70196  Dryopteris arguta Robert J. Rodin 1969-8-16 8368 Humboldt near Carlotta (near Van Duzen River) Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  SEINET200660 Image available Echinochloa crus-galli J. P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley near the South Fork 183 Comment
  RSA10098  Echinochloa muricata var. microstachya Joseph P. Tracy 1930-10-12 9209 Humboldt Eel River, on gravel bars, Alton to Fortuna 15 Comment
  HSC7307  Eleocharis macrostachya D. E. Anderson 1961-9-9 1783 Humboldt Along Hwy. 101 Comment
  HSC7341  Eleocharis obtusa J. P. Tracy 1927-8-7 8319 Humboldt Lack Pond in Trinity River Valley opposite mouth of Willow Creek 152 Comment
  HSC96566  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  POM126088  Eleocharis parvula Joseph P. Tracy 1924-8-3 6744 Humboldt Stone Lagoon Comment
  UC526781  Elymus elymoides subsp. elymoides Joseph P. Tracy 1932-7-14 10531 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC552794  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-23 14134 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  HSC70479  Elymus glaucus Gail Newton 1980-7-20 1644 Humboldt Near Bell Swamps 1426 Comment
  HSC74458  Elymus glaucus Gail Newton 1980-8-10 2016 Humboldt Near Blake Mtn. 1798 Comment
  HSC9716  Elymus glaucus D. C. Juve 1964-5-16 44 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  RSA183623  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC526797  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD62258  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River. Comment
  CAS-BOT-BC203472  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-6-22 13958 Humboldt Holmes Flat 60 Comment
  HSC98574  Elymus glaucus subsp. glaucus Cara Witte 2008-8-5 984 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  UCD61278  Elymus macounii August L. Hormay 1932-5-12 Humboldt Bull Creek Road, near bridge. Comment
  UC526785  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC717990  Elymus trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi ne Capetown 152 Comment
  CAS-BOT-BC392223  Enemion stipitatum Joseph P. Tracy 1935-5-5 13802 Humboldt Kneeland Prairie 822 Comment
  SDSU8812  Epilobium angustifolium Harvey 1938-8-13 2236 Humboldt Stephens Grove Comment
  HSC43234  Epilobium brachycarpum R. Sutherland 1976-8-6 4 .6876 Humboldt 229 Comment
  HSC16549  Epilobium canum subsp. latifolium Paul Shields 1955-9-25 Humboldt 17 mi. SE of Willow Creek Comment
  RSA22708  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC505125  Epilobium densiflorum Joseph P. Tracy 1932-8-21 10361 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower w foothills of mt.) 457 Comment
  HSC55113  Epilobium glaberrimum G. L. Clifton 1979-7-31 11868 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  BLMAR138  Epilobium minutum Donald Hazlett 1994-6-7 138 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC171849  Epilobium septentrionale Doris K. Kildale 1929-8-4 8778 Humboldt Mattole River at Union Mattole Comment
  UC1196956  Epilobium septentrionale Joseph P. Tracy 1936-6-9 14901 Humboldt Mattole R. 3 mi. e. Petrolia; North Coast Region, Mattole R. 15 Comment
  UCD106771  Epilobium septentrionale R. N. Bowman 1971-4-12 52 Humboldt Ca. 1.7 miles SE of Myers Flat off of Highway 101. Ca. 4 feet above S fork of Eel River on E bank. 1066 Comment
  POM301295  Epipactis gigantea Joseph P. Tracy 1949-7-7 18335 Humboldt Blue Slide, on Van Duzen River 91 Comment
  RSA34053  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt Eel River between Scotia and Pepperwood. Comment
  POM281840  Equisetum hyemale var. affine Lyman Benson 1928-7-9 414 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  HSC98903  Equisetum laevigatum Cara Witte 2007-7-25 580 Humboldt Forest Service Road 5N10. Approximately 2 miles south from intersection with Forest Service Road 5N41. 1290 Comment
  POM182455  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt Dinsmore s Ranch, in valley of Van Duzen River. Opposite Buck Mtn. 762 Comment
  SEINET5525683 Image available Equisetum telmateia Unknown 1983-6-16 Humboldt Patricks Pt State Park Comment
  CHSC26755  Equisetum telmateia subsp. braunii M. S. Taylor 1977-8-5 1430 Humboldt Around bridge over Eel River, at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  HSC76320  Equisetum telmateia subsp. braunii Teresa Prendusi 1981-7-23 348 Humboldt Near Black Mtn. 890 Comment
  UC667933  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-6-26 15361 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  POM89792  Eragrostis hypnoides Joseph P. Tracy 1920-8-20 5369 Humboldt Klamath River at mouth of Bluff Creek Comment
  UC212872  Eragrostis hypnoides Joseph P. Tracy 1920-8-15 5367 Humboldt Klamath River mouth of Bluff Creek (at mouth of Bluff Creek); Northern Coast Ranges, , Bluff Creek 152 Comment
  HSC9784  Eragrostis mexicana subsp. virescens D. E. Anderson 1963-9-21 2834 Humboldt 0.5 mi E of Willow Creek Comment
  HSC39978  Erechtites glomeratus Linda M. Barker 1976-7-5 1634 Humboldt 3 mi. W of Arcata. Comment
  POM318607  Erechtites minimus Patricia Wilder 1968-8-21 4379 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  HSC102066  Eremogone congesta var. congesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 968 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC58927  Erica Wilma Follette 2002-2-9 s.n. Humboldt Along east side of Highway 101, near Patrick's Point State Park Comment
  UCD117422  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka. Comment
  CAS-BOT-BC287477  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit at Ranger Station 1828 Comment
  HSC22165  Ericameria greenei J. O. Sawyer 1968-9-27 730 Humboldt Near Waterdog Lakes and N Trinity Mtn. 1768 Comment
  UC581743  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain South Fork Mountain (near McKay Camp) 1676 Comment
  UCR51767  Erigeron bloomeri var. nudatus H. E. Parks 1937-1 24- 22 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  UCSB30605  Erigeron canadensis Edwards, David 1974-7-30 Humboldt In NW corner of Uniontown Shopping Center at the corner of 'F' St. and 7th St., Arcata 18 Comment
  HSC35600  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt Bald Hills Rd., just W of French Camp. Comment
  CAS-BOT-BC296108  Erigeron foliosus var. confinis J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  RSA21324  Erigeron foliosus var. confinis C. B. Wolf 1937-8-13 9218 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC468817  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale Jun 20 1899-Jan 1 1900 5713 Humboldt Hoopa Valley North-Western California, Mendocino Comment
  CAS-BOT-BC300674  Erigeron foliosus var. mendocinus Alice Eastwood; John Thomas Howell 1937-6-22 4731 Humboldt Near Alder Point Comment
  CHSC69497  Erigeron glaucus Vernon Oswald; Lowell Ahart 1997-9-4 8851 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  UC581716  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-7-26 12917 Humboldt Grouse Mountain 1630 Comment
  HSC58174  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-2 12255 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC38089  Erigeron philadelphicus Thomas W. Nelson, James Nelson 1976-5-30 2610 Humboldt McKeown Ranch N of Dinsmore Comment
  SEINET9351061  Erigeron philadelphicus Unknown 1935-5-22 Humboldt Fort Seward. Comment
  UCD131462  Erigeron philadelphicus var. philadelphicus K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  HSC48395  Eriodictyon californicum Brad Klipfel 1973-6-10 149 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55063  Eriogonum compositum G. L. Clifton, Griswold 1979-7-31 11625 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC74726  Eriogonum compositum Gail Newton 1981-7-23 2275 Humboldt Near Bug Creek Butte 1494 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  UCR37906  Eriogonum compositum D. K. Imper 1982-7-2 1411 Humboldt Near Connely Creek, N Fork 1493 Comment
  CAS-BOT-BC248810  Eriogonum compositum var. compositum L. B. Kildale 1930-8-3 10343 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC55504  Eriogonum compositum var. compositum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5672 Humboldt Hoopa Mt. Comment
  POM188142  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton. Comment
  POM232031  Eriogonum latifolium I. L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  RSA21010  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 8 Comment
  SBBG28255  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  UC179958  Eriogonum latifolium Joseph P. Tracy 1914-8-30 4597 Humboldt Ocean Beach at Humboldt Bay Humboldt Bay Comment
  UC672911  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt near bay shore; Bucksport 6 Comment
  JEPS56635  Eriogonum nudum var. nudum Lincoln Constance 1934-5-24 626 Humboldt s slope of Lower Look Prairie South Fork Eel River, Bull Creek Region, Lower Look Prairie 121 Comment
  UC1198147  Eriogonum nudum var. nudum Joseph P. Tracy 1948-8-8 18094 Humboldt near school house; Iaqua 609 Comment
  CAS-BOT-BC261721  Eriogonum nudum var. oblongifolium A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  UC275279  Eriogonum roseum Joseph P. Tracy 1923-9-10 6547 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  HSC100600  Eriogonum umbellatum Carl C. Marshall Jun 1885 22 Humboldt S Fork Mtn. summit Comment
  UC55392  Eriogonum umbellatum var. dumosum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5735 Humboldt Supply Creek North Coast Ranges, Hoopa Valley, Supply Creek Comment
  CAS-BOT-BC262322  Eriogonum vimineum F. D. Douthitt 1916-10-1 40 Humboldt Burned area - Snow Mt. Allotment Comment
  CAS-BOT-BC301014  Eriophyllum lanatum var. achilleoides L. B. Kildale 1930-8-3 10347 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  JEPS73713  Eriophyllum lanatum var. achilleoides L. R. Heckard with T. I. Chuang 1968-7-5 1985 Humboldt Mail Ridge road 4.3 mi n Harris road Comment
  CAS-BOT-BC301012  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1925-6-28 913 Humboldt Fleener Creek Comment
  CAS-BOT-BC301181  Eriophyllum lanatum var. arachnoideum Doris K. Kildale 1927-6-25 3541 Humboldt Shelter Cove Comment
  UC535728  Eriophyllum lanatum var. arachnoideum Eleanor Armstrong 1934-8-30 1180 Humboldt creek bed Richardson Grove 121 Comment
  UC34185  Eriophyllum lanatum var. grandiflorum Harley P. Chandler 1901-6-1 1301 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  BLMAR818  Eriophyllum staechadifolium Madeleine Hassett 2017-9-9 818 Humboldt King Range, Windy point, down the old road/trail to Punta gorda Lighthouse 5 Comment
  UC727166  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt between Little River and Trinidad Comment
Read comments
Sep 29 2006
  CAS-BOT-BC41569  Erysimum capitatum Doris K. Kildale 1926-4-18 1769 Humboldt McLellan Mountain. 822 Comment
  BLMAR744  Erysimum concinnum Jennifer Wheeler 2015-5-18 744 Humboldt King range, East side of Lost Coast trail approx. 3/4mile from mattole trailhead 30 Comment
  CAS-BOT-BC153743  Erythranthe alsinoides Doris K. Kildale 1926-3-21 1576 Humboldt Kneeland Prairie - Summit 853 Comment
  SJSU2542  Erythranthe dentata H. L. Buckalew 1962-6-26 Humboldt Prairie Cr Redwoods State Park Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  UC1197644  Erythronium californicum Joseph P. Tracy 1913-6-17 4184 Humboldt near summit; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC666966  Erythronium californicum Joseph P. Tracy 1927-3-27 7860 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC15489  Erythronium citrinum var. citrinum J. R. Eichelberger 1964-4-10 40 Humboldt 4 mi. S of Weitchpec on Hwy. 96 Comment
  CAS-BOT-BC133333  Erythronium revolutum Doris K. Kildale; L. B. Kildale 1930-5-11 9536 Humboldt [Wire Grass] Wiregrass Prairie - The Bald Hills 792 Comment
  HSC104346  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 5 Humboldt Kneeland 854 Comment
  HSC12348  Eschscholzia californica Steve Dorei 1970-10-20 111 Humboldt Along Plaza Ave., 200 ft. SW of Laurel Dr. Comment
  HSC97951  Eschscholzia californica Cara Witte 2007-6-21 317 Humboldt National Forest 1. Two miles south of intersection with 5N04. 1472 Comment
  SEINET12104680  Eschscholzia californica E. A. York 1990-1-10 2705 Humboldt USGS Redwood Field Station, Arcata Comment
  UC1222567  Eschscholzia californica Joseph P. Tracy 1950-6-8 18750 Humboldt Devil's Gate Cape Mendocino (s of point of Cape) 3 Comment
  RSA0024550  Eucephalus ledophyllus var. covillei Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit. 1890 Comment
  UC1199298  Eucephalus tomentellus Joseph P. Tracy 1930-7-19 9083 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS20466  Euchiton gymnocephalus Joseph P. Tracy 1923-4-1 6175 Humboldt near Blue Lake 304 Comment
  UC562616  Euchiton gymnocephalus Joseph P. Tracy 1936-8-23 15164 Humboldt Carlotta 30 Comment
  CAS-BOT-BC310488  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  UCD132296  Euchiton sphaericus John Thomas Howell 1956-8-29 12888 Humboldt Eel River 16 miles north of Garberville. Comment
  HSC83991  Euphorbia peplus L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 223 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  UC1173675  Eurybia radulina Joseph P. Tracy 1939-8-5 16380 Humboldt Dinsmores, Van Duzen River, opposite Buck Mt. Van Duzen River 762 Comment
  HSC22607  Euthamia occidentalis J. P. Smith, J. O. Sawyer 1971-10-16 5050 Humboldt 2.1 mi. E of Carlotta on Calif. 36 Comment
  BLMAR323  Festuca bromoides Jennifer Wheeler 2002-8-9 323 Humboldt Lost Coast Headland, Trail to Guthrie creek 30 Comment
  HSC9849  Festuca californica D. E. Anderson 1965-5-1 3583 Humboldt Along road to Bluff Creek campground, about 3 mi from its junction with Hwy. 96 Comment
  UC187111  Festuca elmeri J. P. Tracy 1903-5-23 1899 Humboldt Alder Point, on Eel River Eel River 243 Comment
  UC552766  Festuca elmeri H. E. Parks and Joseph P. Tracy 1934-6-27 11045 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  POM112463  Festuca idahoensis H. P. Chandler 1901-06 1366 Humboldt Hupa Indian Reservation. 152 Comment
  UC70827  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5676 Humboldt Hoopa Mt. Comment
  HSC70396  Festuca occidentalis M. A. Baker 1980-6-7 1808 Humboldt Near Brush Mtn. 1128 Comment
  HSC91397  Festuca occidentalis Maggie Wolf, Scott Brush, Ross Jones 1990-4-27 61 Humboldt Gray's Falls Campground, Hwy. 299 259 Comment
  SEINET175520 Image available Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River near Bridgeville Comment
  UC1541568  Festuca occidentalis Harold E. Parks Jun 1933 4313 Humboldt Spruce Cove Trinidad Comment
  UC187115  Festuca occidentalis Joseph P. Tracy 1911-6-4 3229 Humboldt along Little River, 5 mi from the coast Northern Coast Ranges, Little River 121 Comment
  UC38489  Festuca occidentalis Harley P. Chandler Jun 1901 1474 Humboldt Klamath River North Coast Ranges Comment
  HSC26125  Festuca rubra J. P. Smith 1970-6-7 3800 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC47790  Festuca rubra Michael A. Watkins 1978-6-10 2 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC187109  Festuca rubra J. P. Tracy 1907-5-30 1108 Humboldt immediate vicinity Eureka 0 Comment
  UCSC000038  Festuca rubra H. S. Yates 1936-6-23 5863 Humboldt 1 mile W of Bayside - Eureka 0 Comment
  HSC98623  Festuca subulata Cara Witte 2008-8-6 1006 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  HSC27562  Fragaria X ananassa J. D. Ackerman, A. M. Montalvo 1973-3-27 39 Humboldt 1.5 mi. N of Manila Comment
  RSA183617  Fragaria californica D. E. Anderson 1965-5-1 3558 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  CAS-BOT-BC453519  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  HSC33746  Fragaria chiloensis A. Montalvo 1975-5-24 285 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC75559  Fragaria virginiana J. O. Sawyer, J. Cole 1977-7-3 3007 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  BLMAR152  Frangula californica subsp. californica Donald Hazlett 1994-6-7 152 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52743  Frangula californica subsp. californica Doris K. Kildale 1927-7-3 3653 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC59956  Frangula purshiana Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon. Comment
  HSC12227  Frangula purshiana Gary J. Stebbins 1970-4-19 71 Humboldt Along rd. to Fieldbrook 2.7 mi N of Hwy. 299 Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa Comment
  CAS-BOT-BC136030  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  HSC38259  Fritillaria affinis Thomas W. Nelson 1976-4-3 2285 Humboldt Hwy 36 at east end of Swain's Flat Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  CAS-BOT-BC136032  Fritillaria affinis John Thomas Howell 1954-4-25 29154 Humboldt Dune hills, Little River Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  HSC65514  Fritillaria purdyi M. A. Baker 1980-6-8 1910 Humboldt Near Buck Flat. 1554 Comment
  HSC36507  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1884 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CAS-BOT-BC422450  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka 30 Comment
  HSC32078  Galium ambiguum subsp. ambiguum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5596 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UCD121553  Galium ambiguum subsp. siskiyouense Frederic Hrusa 1993-6-17 11229 Humboldt Red Mountain. 1200 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
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC49978  Galium bolanderi M. A. Baker 1979-6-7 783 Humboldt N bank of road to Snow Mtn. 610 Comment
  JEPS6481  Galium divaricatum Joseph P. Tracy 1920-7-11 5343 Humboldt 2 mi se Arcata; Fickle Hill 304 Comment
  HSC19848  Galium mollugo H. E. Parks, J. P. Tracy 1937-7-16 11451 Humboldt Near Trinidad 61 Comment
  JEPS52824  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3851 Humboldt 11.6 mi w Bridgeville (on Hwy 36 to Dinsmores, floor of valley); Larrabee Valley 716 Comment
  UC1196118  Galium muricatum Joseph P. Tracy 1940-8-25 16709 Humboldt near High Prairie; Bald Mountain 1066 Comment
  JEPS6497  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek (on creek) 457 Comment
  UC602546  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  HSC38387  Galium trifidum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa near Humboldt County Airport Comment
  UC1143113  Galium triflorum H. L. Person 1931-7-30 27 Humboldt Fieldbrook Eureka Quadrangle Comment
  UC485684  Gamochaeta ustulata Joseph P. Tracy 1912-6-9 3648 Humboldt Alton Northern Coast Region 30 Comment
  UC1196889  Garrya buxifolia Joseph P. Tracy 1938-6-13 15906 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC199025  Garrya congdonii H. L. Mason 1926-1-1 2603 Humboldt Blue Lakes Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  UCSB72519  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  HSC49710  Gastridium phleoides J. O. Sawyer 1977-7-1 2991 Humboldt Aikens campground. Comment
  UCD66724  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 487 Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  CAS-BOT-BC56297  Gaultheria ovatifolia R. Bacigalupi; L. Constance; J. P. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3413 Humboldt Meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1432 Comment
  CAS-BOT-BC58923  Gaultheria shallon Elmer I. Applegate 1923-9-10 3985 Humboldt Martin's Ferry, Klamath River Comment
  HSC22501  Gaultheria shallon R. E. Thill 1965-4-27 20 Humboldt 1 mi. off Hwy. 299 on Essex Lane Rd. Comment
  HSC22505  Gaultheria shallon J. R. Eichelberger 1964-5-5 68 Humboldt N side of the Mad River at the entrance to Azalea State Reserve Comment
  HSC31810  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to Hwy. 101 rest stop, ca. 3 mi. N of Trinidad Comment
  HSC98970  Gaultheria shallon Cara Witte 2008-8-5 993 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  RSA257020  Gaultheria shallon Gary D. Wallace, Larry E. DeBuhr, G. Ansley Wallace 1972-5-22 1065 Humboldt Between Big Lagoon Co. Pk. and Hwy 101, south of Orick. Comment
  UCD117455  Gaultheria shallon D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  HSC76623  Gayophytum diffusum Denis Kearns 1981-7-22 317 Humboldt Near Whiteys Peak. 1487 Comment
  HSC54658  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9877 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC74175  Gayophytum diffusum subsp. parviflorum M. A. Baker 1980-7-23 3157 Humboldt Near Orleans Mtn. 1859 Comment
  UC562365  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC205214  Gayophytum humile Chesnut and Drew July 1888 Humboldt S, Fork Mt. Comment
  HSC34638  Genista monspessulana J. M. Sauser 1975-4-9 3 Humboldt Old Arcata Rd., 3/4 mi. S of junction with Indianola Rd. Comment
  HSC48314  Gentiana plurisetosa Brad Klipfel 1973-8-3 302 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57882  Gentiana plurisetosa Walter Overton, Marvin Butler 1979-7-31 11420 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC213321  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5274 Humboldt Trinity Summit Northern Coast Ranges (in meadows) 1828 Comment
  RSA18063  Gentiana sceptrum Carl B. Wolf 1927-8-22 787 Humboldt Big Lagoon. Comment
  HSC24639  Gentiana sceptrum Doris K. Kildale 1925-7-26 1065 Humboldt Christmas Prairie Comment
  RSA0028176  Geranium bicknellii var. bicknellii D. E. Anderson 1963-5-25 2497 Humboldt About 4 miles east of Petrolia. Comment
  HSC37851  Geranium carolinianum Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  RSA0028457  Geranium dissectum H. E. Parks, S. T. Parks 1938-04 24118 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC164808  Geranium oreganum Joseph P. Tracy 1911-7-4 3287 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  HSC90389  Geranium pusillum Jean Hanson 1980-4-12 41 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  BLMAR718  Gilia capitata subsp. pacifica Jennifer Wheeler 2012-6-5 718 Humboldt King range, Mattole beach bluffs 18 Comment
  RSA21031  Gilia capitata subsp. pacifica C. B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  UC427877  Gilia capitata subsp. pacifica H. E. Parks, J. P. Tracy 1930-5-25 793 Humboldt near Bridgeville; near Bridgeville Comment
  BLMAR606  Gilia millefoliata Jennifer Wheeler 2011-4-1 606 Humboldt King range, growing throughtout the Mattole beach dune area Comment
  JEPS79894  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  HSC100596  Gilia tricolor Carl C. Marshall May 1887 420 Humboldt Dobbyn's Creek. Comment
  JEPS11824  Githopsis diffusa subsp. robusta Lincoln Constance 1934-6-4 819 Humboldt Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  HSC10078  Glyceria declinata R. S. White 1965-5-19 87 Humboldt 5 mi. S of Samoa along the Samoa Rd. Comment
  HSC58552  Glyceria elata Overton, Butler 1979-7-24 9814 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1541565  Glyceria elata Harold E. Parks Sep 1928 175 Humboldt Big Lagoon Comment
  SBBG29159  Glyceria occidentalis J. P. Tracy 1933-7-20 Humboldt Arcata Bottom 15 Comment
  RSA42036  Gnaphalium chilense H. C. Cantelow 1936-8-29 1566 Humboldt 1 mile off Riv. [High.?] S. Fork Eel River Bridge, 17 miles N of Garberville Comment
  CDA5423  Gnaphalium japonicum T. C. Fuller 1962-8-6 9358 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  JEPS20478  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt open places at Corral Prairie (in low wet ground); Trinity Summit, Corral Prairie 1584 Comment
  HSC103576  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1981-8-10 6736 Humboldt Eureka; along old logging road just south of Lundbar Hills. Comment
  RSA167297  Gnaphalium thermale Joseph P. Tracy 1950-9-22 19376 Humboldt Klamath River near Slate Creek; below Orleans 8 miles. 122 Comment
  CAS-BOT-BC304750  Grindelia hirsutula A. A. Heller 1924-7-21 13870 Humboldt At Eureka Comment
  CAS-BOT-BC304752  Grindelia hirsutula H. E. Parks; S. T. Parks 1930-9-14 0773 Humboldt North shore of Big Lagoon 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
  JEPS41893  Grindelia hirsutula W. L. Jepson 1936-8-18 17944 Humboldt Capetown Capetown (grassy flats by the sea) Comment
  POM253560  Grindelia hirsutula C. L. Hitchcock, J. S. Martin 1939-7-14 5437 Humboldt Bluffs facing sea at Shelter cove Comment
  UC1093969  Grindelia hirsutula Herbert L. Mason 1932-7-21 7100 Humboldt Big Lagoon Big Lagoon Comment
  SEINET11835894  Grindelia hirsutula var. davyi Unknown 1936-1 13195 Humboldt near Ukiah Comment
  CDA6054  Grindelia nana E. C. Whitney 1963-9-2 Humboldt Benbow State Park, Eel River, south of Garberville. 0 Comment
  HSC100434  Grindelia robusta Carl C. Marshall Sep 1886 253 Humboldt Marshes. Comment
  CDA6171  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  SD61044  Grindelia stricta var. stricta Darley F. Howe 1964-8-10 3952 Humboldt 5.7 miles north of Eureka on [U.S.] 101. Comment
  SEINET10614320 Image available Grindelia stricta var. stricta J. A. Moore, Julian A. Steyermark 1931-8-9 Moore 3686 Humboldt Salt meadows along canal, Eureka. 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
  JEPS67930  Hackelia micrantha Joseph P. Tracy 1932-7-17 10691 Humboldt head of Devil's Hole; Klamath Mountains, Trinity Summit 1828 Comment
  JEPS67933  Hackelia micrantha W. L. Jepson 1902-7-16 2041 Humboldt Trinity Summit 2133 Comment
  HSC44542  Hastingsia alba Brad Klipfel 1973-7-15 161 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM182422  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  HSC59038  Hedera helix Thomas Wood 1979-4-20 119 Humboldt Along frontage rd., parallel and E of Hwy. 101 at Patrick Cr. Rd. intersection, adjacent to Patrick Cr. 6 Comment
  HSC57978  Helenium bigelovii G. L. Clifton, Griswold 1979-7-31 11702 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC75258  Helenium bigelovii J. O. Sawyer, M. A. Ericksen 1980-8-18 4052 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  JEPS35024  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  JEPS35428  Helenium bigelovii H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mt. Comment
  UC169301  Helenium puberulum Joseph P. Tracy 1912-8-4 3979 Humboldt near Hydesville; Northern Coast Region 60 Comment
  RSA1499  Helenium puberulum E. R. Johnson 1929-08 1431 Humboldt Along the Redwood Hwy, S of Eureka. 30 Comment
  UC525571  Heliotropium curassavicum Joseph P. Tracy 1927-6-26 8210 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  HSC25071  Heliotropium curassavicum var. oculatum R. W. Becking 1970-10-3 Humboldt Stone Lagoon near Orick Comment
  HSC45215  Hemitomes congestum Louise Watson, Mary Lou Schreiber 1978-9-29 Humboldt West side of summit, 1/4 mi. N. of McKinleyville-Fieldbrook Rd. Bulk Collection 137 Comment
  RSA255765  Hemitomes congestum Gary D. Wallace, S. Carlquist, G. Ansley Wallace 1972-6-1 1108 Humboldt Prairie Creek Redwoods St. Pk., E. of Park HQ. 73 Comment
  UC249845  Hemizonella minima Joseph P. Tracy 1923-6-24 6349 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  CDA30696  Hemizonia congesta M. K. Beyers, I. Shepardson 2009-9-13 248 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  CAS-BOT-BC309991  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  HSC5819  Hemizonia congesta subsp. tracyi H. E. Parks May 1934 5076 Humboldt Bridgeville 152 Comment
  JEPS12550  Hemizonia congesta subsp. tracyi Lincoln Constance 1934-6-12 868 Humboldt Bull Creek road and n bank of South Fork Eel River; Dyerville Comment
  JEPS28965  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt n slope Buck Mountain Comment
  UC1199368  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-5-30 7020 Humboldt 228 Comment
  UC195064  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1916-9-5 4766 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  RSA168837  Hemizonia tracyi Joseph P. Tracy 1950-6-8 18757 Humboldt At Domingo Hill Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  HSC13056  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 369 Humboldt HSC Campus, Arcata Comment
  UC1212422  Hesperolinon micranthum Joseph P. Tracy 1925-7-12 7202 Humboldt hillsides w of Trinity River Valley (near the South Fork); Northern Coast Ranges 304 Comment
  HSC98091  Heterocodon rariflorum Cara Witte 2007-7-11 476 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  JEPS11793  Heterocodon rariflorum W. L. Jepson 1932-7-24 16394 Humboldt Garberville; Tooey Ranch Comment
  SEINET10460607  Heterocodon rariflorum Willis L. Jepson Jepson 16394 Humboldt GARBERVILLE Comment
  CAS-BOT-BC143652  Heteromeles arbutifolia L. B. Kildale 1930-7-7 10200 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  RSA0072456  Heteromeles arbutifolia Percy C. Everett, E. K. Balls 1959-10-24 23951 Humboldt 6 mi SW from Siskiyou-Humbolt county line, Somesbar to Orleans. 152 Comment
  HSC101543  Heterotheca oregona var. compacta J. P. Smith, J. O. Sawyer 2009-8-3 12643 Humboldt Along the Eel River. 23 Comment
  JEPS2421  Heterotheca oregona var. oregona W. L. Jepson 1936-8-12 17875 Humboldt Philipsville, gravel bars and lowest terrace of South Fork Eel River South Fork Eel River Comment
  JEPS2472  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Ranges, Mattole River 15 Comment
  SEINET3166896  Heterotheca oregona var. rudis Unknown 1986-8-18 8529 Humboldt Near Myer's Flat. Gravel bars of S fork of Eel River at U.S.-101 Comment
  RSA0066094  Heuchera micrantha var. diversifolia Thomas W. Nelson, Jane Nelson 1976-7-1 2904 Humboldt Along serpentine ridge N of Bear Creek. 1463 Comment
  JEPS36594  Hieracium albiflorum Lincoln Constance 1934-5-29 736 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC582414  Hieracium albiflorum Joseph P. Tracy 1933-8-30 13039 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1069597  Hieracium albiflorum H. L. Person 1932-7-16 Humboldt highway n Trinidat; Rock Point Quad. Comment
  UC1223077  Hieracium nudicaule Joseph P. Tracy 1949-8-11 18471 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek beginning at the place where the electric power line crosses); Kinsey Ridge 1280 Comment
  UC573684  Hierochloe occidentalis H. S. Yates 1936-6-22 5850 Humboldt 4 mi ne Bald Mt.; China Flat Quadrangle Comment
  CAS-BOT-BC280739  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC10127  Holcus lanatus True Hoyle 1967-6-24 25967 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  HSC97396  Holcus lanatus J. Wendell Howe 1934-6-27 1278 Humboldt Arcata. Comment
  RSA22954  Holcus lanatus A. C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC187268  Holcus lanatus Joseph P. Tracy 1911-7-7 3389 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/Trinity River 914 Comment
  UCD84835  Holcus lanatus Linda M. Barker 1976-6-22 1614 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD84908  Holcus lanatus S. P. Lynch 1975-6-19 1364 Humboldt US 101 at jct. w/ Loleta Dr., ca. 31 miles N of Burlington Campground. Comment
  CAS-BOT-BC149899  Holodiscus discolor Doris K. Kildale 1925-6-21 741 Humboldt Briceland Bridge 1/2 miles W. of Garberville 114 Comment
  CAS-BOT-BC149900  Holodiscus discolor Elmer I. Applegate 1923-9-12 3989 Humboldt Stone Lagoon Comment
  CAS-BOT-BC149902  Holodiscus discolor Doris K. Kildale 1927-7-17 3755 Humboldt Bug Creek 792 Comment
  HSC18682  Holodiscus discolor H. E. Parks, S. T. Parks Jun 1927 257 Humboldt Hartsook 122 Comment
  HSC37949  Hordeum brachyantherum Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  RSA87062  Hordeum brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  HSC32518  Hordeum marinum subsp. gussoneanum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-17 5715 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC104057  Hordeum murinum C. Reynolds 2015-4-28 41 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  HSC35867  Horkelia californica var. californica Thomas W. Nelson, James Nelson 1975-8-5 2127 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  HSC23680  Horkelia tridentata var. flavescens D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5054 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  HSC76241  Horkelia tridentata var. flavescens Denis Kearns 1981-6-24 9 Humboldt Near Cedar Camp 1219 Comment
  SEINET957087  Hosackia rosea H. E. Parks 1932-1 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  JEPS1633  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  UC420732  Hypericum perforatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5715 Humboldt Hoopa Valley North Coast Ranges, Hoopa Valley Comment
  CAS-BOT-BC312888  Hypochaeris glabra Barry Silver 1986-5-18 602 Humboldt Bull Creek Flats Road, 100 yds. w. of junction with Highway 101 Comment
  UC249880  Hypochaeris glabra Joseph P. Tracy 1923-6-19 6303 Humboldt 762 Comment
  CAS-BOT-BC311436  Hypochaeris radicata Ashley C. Browne 1936-6-10 s.n. Humboldt Patrick's Point State Park Comment
  HSC5867  Hypochaeris radicata R. C. Hoover 1965-5-13 39 Humboldt At the end of Murray Rd. about 1 1/2 mi. W of McKinleyville Comment
  HSC82389  Ipomopsis aggregata subsp. aggregata Thomas W. Nelson 1979-7-11 5029 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC13867  Iris douglasiana D. J. Jager 1965-5-12 63 Humboldt 0.5 mi. N of Trinidad on bluff above College Cove 46 Comment
  HSC13895  Iris douglasiana N. D. Dennis 1965-5-5 51 Humboldt 1 mi. N of Trinidad on Hwy. 101 Comment
  UC14932  Iris douglasiana J. P. Tracy 1901-6-30 1190 Humboldt immediate vicinity Eureka 0 Comment
  HSC13853  Iris douglasiana J. C. Reppas 1963-3-16 1 Humboldt 820 Fickle Hill Rd. Comment
  HSC79519  Iris douglasiana Kenneth Clark 1980-3-1 519 Humboldt Middle terrace, Dead Man's Gulch, Shelter Cove 43 Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  UC1103022  Iris douglasiana J. P. Tracy 1901-5-12 1079 Humboldt vicinity Eureka 0 Comment
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  RSA135935  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17193 Humboldt 0.5 mile west of Bridgeville, 23.7 miles east and southeast from Alton along Highway 36 Comment
  RSA245555  Iris purdyi Larry E. DeBuhr 1973-4-23 983 Humboldt Richardson Grove Redwood State Park. Comment
  CAS-BOT-BC240325  Iris tenax subsp. klamathensis Dana York 2011-5-31 3021 Humboldt Six Rivers National Forest, Ca. 1.1 km S-SE of Somes Bar Post Office, on the slope E and above Hwy. 96 adjacent to a large landslide that occurred in 2010 Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC13887  Iris tenuissima B. R. Templeton 1962-5-24 Humboldt Berry Summit, E slope Comment
  RSA136529  Iris tenuissima Lee W. Lenz 1953-5-12 18295 Humboldt 2 miles west Humboldt County line, Highway 299 180 Comment
  HSC57016  Juncus bolanderi Overton, Butler 1979-7-24 9623 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UCR27990  Juncus bolanderi A. C. Sanders 1981-8-6 2300 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  CHSC10121  Juncus breweri J. W. Johnson 1961-8-17 Humboldt Arcata. In the vernal pond community of Hollow 10, W.M. Lanphere Farm. Samoa Peninsula. Comment
  RSA296738  Juncus breweri J. P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC184004 Image available Juncus breweri Joseph P. Tracy 1901-8-7 1272 Humboldt ocean beach at Humboldt Bay Northern Coast Region, Humboldt Bay; Humboldt Bay Comment
  RSA70280  Juncus covillei F. W. Peirson 1923-7-9 3666 Humboldt Humboldt County State Park on Eel River, northern California. Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC1103055  Juncus ensifolius Joseph P. Tracy 1900-9-9 947 Humboldt near mouth of Yager Creek; Northern Coast Ranges 60 Comment
  UC249812  Juncus falcatus var. falcatus Joseph P. Tracy 1924-7-13 6723 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC36888  Juncus laccatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2057 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  UCD141574  Juncus lescurii Linda M. Barker 1976-6-22 1620 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD150382  Juncus lescurii William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Freshwater Lagoon. Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1222344  Juncus occidentalis Joseph P. Tracy 1953-6-26 19561 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  RSA368144  Juncus patens J. P. Smith, Steve Selva 1970-6-14 3822 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  UC1103046  Juncus phaeocephalus Joseph P. Tracy 1921-7-10 5854 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC154066  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  CAS-BOT-BC81147  Juniperus occidentalis Copeland 1903-7-4 3545 Humboldt Klamatha Comment
  CAS-BOT-BC235881  Keckiella corymbosa Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC74667  Keckiella corymbosa Gail Newton 1981-8-7 2429 Humboldt Near Bug Creek Butte 1244 Comment
  UC213144  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  JEPS11333  Kickxia elatine Joseph P. Tracy 1934-6-22 13246 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC38432  Kickxia elatine J. P. Smith 1976-10-30 8997 Humboldt Mad River, E of Essex Lane exit. Comment
  UC1152009  Koeleria macrantha Joseph P. Tracy 1951-6-24 19541 Humboldt between serpentine rockpile and Ashfield Butte Kneeland Prairie; , btw rockpile and Ashfield Butte 762 Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  UCD133521  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie. 762 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
  UC166288  Lasthenia californica subsp. californica Joseph P. Tracy 1908-6-8 2628 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET11811255  Lasthenia chrysostoma J. P. Tracy 1947-1 17752 Humboldt Larrabee Valley 732 Comment
  CAS-BOT-BC352931  Lasthenia glaberrima Joseph P. Tracy 1908-6-7 2619 Humboldt Butler Valley 152 Comment
  NY8451  Lathyrus biflorus T. W. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. Serpentine on NE slope of Red Mountain 1371.6 Comment
  UC1368671  Lathyrus glandulosus J. P. Tracy 1948-8-7 18085 Humboldt Fickle Hill 609 Comment
  UC495707  Lathyrus jepsonii var. californicus Joseph P. Tracy 1927-5-30 8091 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC709418  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1941-3-26 16844 Humboldt w of mouth of South Fork of Trinity River 304 Comment
  RSA406670  Lathyrus latifolius M. B. Dunkle 1934-8-18 4808 Humboldt Fortuna Comment
  HSC48069  Lathyrus littoralis Thomas W. Nelson 1978-4-23 3878 Humboldt NW of Samoa Comment
  UC494166  Lathyrus littoralis H. E. Parks 1930-5-24 798 Humboldt Little River Lagoon Comment
  CDA27126  Lathyrus littoralis Gordon Leppig 1998-5-25 787 Humboldt Big Lagoon State Park. Coastal sand dune between ocean and Big Lagoon. Comment
  RSA246792  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35221 Humboldt Samoa Peninsula. 3 Comment
  HSC82184  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1977-6-15 3440 Humboldt Along old road to ski area 1372 Comment
  CAS-BOT-BC205044  Lathyrus palustris Kenneth Clark 1980-3-27 560 Humboldt Shelter Cove. South of Dead Man's Gulch 182 Comment
  UC1199067  Lathyrus vestitus Joseph P. Tracy 1937-6-20 15359 Humboldt s of Ferndale; Wild Cat Ridge 304 Comment
  JEPS79919  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1929-5-5 8579 Humboldt Phillipsville, facing South Fork of Eel River South Fork of Eel River; Northern Coast Ranges 121 Comment
  CAS-BOT-BC325930  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt Sand dunes at mouth of Little River. 6 Comment
  SEINET3164358  Ledum glandulosum N. Dennis 1965-6-3 143 Humboldt Big Lagoon County Park; southwest corner of Big Lagoon Comment
  UC275300  Ledum glandulosum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC1101319  Lemna turionifera Malcolm A. Nobs, S. Galen Smith 1949-8-9 1225 Humboldt 1 mi n of Arcata (at junction of Highways 101 and 299, Mad River Valley); Mad River Valley Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  HSC68160  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt End of Murray Rd. in McKinleyville. Comment
  SBBG49010  Leontodon taraxacoides R. N. Philbrick with S. T. Parks 1974-8-28 Humboldt behind beach, along US Hwy 101, S of Orick 76 Comment
  CAS-BOT-BC89078  Lepidium didymum Peter Rubtzoff 1968-9-4 5960 Humboldt Goulds Bar, South Fork Eel River southeast of Weott. Comment
  UC1225757  Lepidium latipes Joseph P. Tracy 1948-5-31 18010 Humboldt Alder Point 304 Comment
  UC1116214  Lepidium nitidum Joseph P. Tracy 1948-4-4 17962 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC64786  Lepidium oxycarpum J. P. Smith, J. O. Sawyer 1976-5-2 8624 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC45056  Leptosiphon androsaceus R. Sutherland 1978-4-23 34 .23478 Humboldt 558 Comment
  RSA135478  Leptosiphon androsaceus Volney Rattan 1882-1 s.n. Humboldt N. of Ulad River. Comment
  UC1225825  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt 2 mi n Harris 609 Comment
  CAS-BOT-BC341827  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges. Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 670 Comment
  UC1199332  Lessingia nemaclada Joseph P. Tracy 1929-8-25 8662 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  BLMAR263  Leucanthemum vulgare Jennifer Anthony-Wheeler 1999-6-16 263 Humboldt Headwaters Forest Reserve, On trail to ' Scar rd ' 487 Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  UC581785  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt along Mad River; Blue Lake Comment
  HSC12543  Leucanthemum vulgare C. Kline 1970-10-26 40 Humboldt W end of School Rd., McKinleyville, above Mad River. Comment
  HSC48387  Lewisia leeana Brad Klipfel 1973-6-10 111 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC39423  Lewisia triphylla Thomas W. Nelson, Jane P. Nelson 1976-6-15 2725 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC184878  Leymus X vancouverensis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka Northern Coast Region (bay shore) 0 Comment
  CDA32455  Leymus X vancouverensis B. F. Kemp 1958-6-13 Humboldt Along Creek Bottom, Eureka (Nielson & Son) 0 Comment
  SEINET200639 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad. Comment
  HSC99548  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 213 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197174  Ligusticum apiifolium Joseph P. Tracy 1930-7-6 8851 Humboldt at crossing of the Iaqua to yager rd. North Yager Creek 396 Comment
  UC154113  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  UC1103400  Lilaeopsis occidentalis W. L. Jepson and Joseph P. Tracy 1921-8-7 5866 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 3 Comment
  HSC76428  Lilium bolanderi Denis Kearns 1981-7-6 87 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC508390  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC508392  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Road Comment
  CAS-BOT-BC508394  Lilium columbianum Mrs. L. B. Kildale 1925-6-7 s.n. Humboldt Between Trinidad Head and Orick Comment
  HSC15569  Lilium columbianum D. G. Hauger 1967-7-22 41 Humboldt 0.5 mi. S of Dry Lagoon Comment
  HSC26820  Lilium columbianum Clifton Raymond Chesbrough 1973-6-19 98 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC179932  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 B Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  RSA74747  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On road to Bald Mountain, east of Korbel Comment
  HSC53855  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-10 6322 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC249575  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Phillipsville Northern Coast Ranges (slopes facing South Fork of Eel River) 121 Comment
  HSC69869  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1978-5-28 4098 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC71066  Limnanthes douglasii subsp. nivea Thomas W. Nelson, Jane P. Nelson 1977-5-30 3399 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC668183  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1935-5-25 13863 Humboldt Fort Seward 106 Comment
  HSC90320  Limonium californicum Jean Hanson 1980-6-22 102 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC90756  Limonium californicum Gail Newton 1983-8-21 3853 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1198537  Linanthus filipes Joseph P. Tracy 1932-6-13 10156 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222729  Linanthus filipes Joseph P. Tracy 1950-5-30 18710 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS11330  Linaria vulgaris Milo S. Baker 1923-8-4 171 Humboldt Stone Lagoon; North Coast, Stone Lagoon Comment
  CDA6371  Linaria vulgaris E. C. Whitney 1963-9-5 Humboldt Fortuna. 0 Comment
  HSC56469  Linnaea borealis subsp. longiflora Griswold, Butler 1979-7-12 7292 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  CHSC20342  Lithocarpus densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland. 731 Comment
  UC1083192  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt near Garberville (East Fork of Eel River); East Fork of Eel River Comment
  SACT002878  Lithocarpus densiflorus D. McIntosh, L. Sanny 1959-3-1 Humboldt Densely covered hillside Comment
  SEINET13953004 Image available Lithocarpus densiflorus J. Sandborg, F. Sandborg 1968-1 58 Humboldt Bluff Creek near Notice Creek 792 Comment
  RSA183495  Lithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland. 732 Comment
  HSC81535  Lithophragma affine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5258 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC100654  Lithophragma bolanderi Carl C. Marshall Apr 1887 381 Humboldt Hoopa and Bald Hills. Comment
  UC1196494  Lithophragma campanulatum Joseph P. Tracy 1932-7-18 10700 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains, , head of Brett Hole 1828 Comment
  HSC44409  Lithospermum californicum R. York 1978-5-6 161 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC180203  Logfia gallica Joeseph P. Tracy 1914-5-14 4467 Humboldt Fort Seward 121 Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UCD66658  Lolium temulentum A. H. Murphy 1947-5-12 Humboldt Fairgrounds at Ferndale. Comment
Read comments
May 24 2012
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC74497  Lomatium macrocarpum M. A. Baker 1980-7-24 3207 Humboldt Near Orleans Mtn. 1625 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  UC21257  Lomatium triternatum var. macrocarpum Harley P. Chandler June, 1901 1378 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC45626  Lomatium utriculatum Diane L. Reed 1978-5-27 133 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  HSC27656  Lonicera conjugialis G. L. Clifton, Terry Griswold 1979-7-25 10829 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  HSC73729  Lonicera conjugialis M. A. Baker 1980-7-22 3077 Humboldt Near Salmon Mtn. 1820 Comment
  UC602562  Lonicera conjugialis Joseph P. Tracy 1930-7-19 9094 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC240476  Lonicera hispidula Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC169064  Lonicera hispidula var. vacillans Mrs. M. H. Manning 1901-1 Humboldt near Hupa Comment
  CAS-BOT-BC240667  Lonicera interrupta Carl D. Duncan 1920-9-20 s.n. Humboldt Hoopa Valley Comment
  HSC96530  Lonicera involucrata var. ledebourii Gordon Leppig 1998-5-11 758 Humboldt Big Lagoon County Park. 3 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
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  SD50722  Lotus corniculatus Darley F. Howe 1959-8-4 2808 Humboldt Near bridge crossing Eureka slough by Humbolt Bay, roadside. Comment
  HSC90323  Lotus corniculatus Jean Hanson 1980-6-22 106 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka. W end of Island in mud between dikes. Comment
  RSA406778  Lotus corniculatus J. P. Smith, T. W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just east of the drag strip. Comment
  POM16960  Lotus crassifolius Joseph P. Tracy 1905-9-3 2389 Humboldt Immediate vicinity of Eureka. Comment
  RSA168860  Lotus formosissimus Joseph P. Tracy 1950-6-8 18746 Humboldt Capetown, on Bear River, top of Cape Ridge. 152 Comment
  HSC98245  Lotus humistratus J. E. Lankila 1962-5-6 20 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  JEPS55515  Lotus humistratus Mrs. M. H. Manning 1901-5 69 Humboldt near Hupa Comment
  UC162805  Lotus humistratus Joseph P. Tracy 1908-6 2701 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzne River 762 Comment
  JEPS55780  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC303189  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  RSA21198  Luina hypoleuca C. B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 miles above Orleans. Comment
  HSC97955  Lupinus adsurgens Cara Witte, Michael Scott 2007-6-22 349 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  SEINET202281  Lupinus albicaulis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp. 1402 Comment
  UC503004  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC198580  Lupinus albifrons Joseph P. Tracy 1916-6-19 4707 Humboldt Burr Creek Northern Coast Ranges, Burr Creek (on high ridges at Robertson Ranch) 914 Comment
  HSC32313  Lupinus albifrons var. flumineus D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5659 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CHSC32840  Lupinus arboreus Lora L. Anderson 1981-4-26 17 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC14777  Lupinus arboreus D. B. Bader 1963-4-1 18 Humboldt Clam Beach Lagoons, W of Hwy. 101. Along the Railroad tracks. Comment
  UC169052  Lupinus arboreus Joseph P. Tracy 1912-2-25 3559 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  SEINET10544235  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  HSC33762  Lupinus bicolor A. Montalvo 1975-5-24 277 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC73959  Lupinus bicolor Gail Newton 1980-6-7 131 Humboldt Near Brush Mtn. 1128 Comment
  UC1197278  Lupinus bicolor Joseph P. Tracy 1913-6-25 4334 Humboldt opposite Buck Mountain (Dinsmore's Ranch, Valley of Van Duzen River); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC36191  Lupinus constancei Thomas W. Nelson 1973-7-10 1017 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 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
  HSC38069  Lupinus latifolius Thomas W. Nelson, James Nelson 1976-5-30 2638 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC98892  Lupinus latifolius var. latifolius Cara Witte 2008-6-18 749 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  UC1949190  Lupinus nanus Barbara Ertter with Thomas J. Delendick 1987-5-16 6923 Humboldt Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata; S-facing slope Comment
  HSC14930  Lupinus pachylobus H. E. Parks 1930-5-25 871 Humboldt Laribee Valley 762 Comment
  UCD109339  Lupinus pachylobus W. Williams 1951-1 s.n. Humboldt Bear Creek Valley. Comment
  HSC102029  Lupinus polyphyllus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 931 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC584126  Lupinus rivularis David D. Keck and J. Clausen 1935-6-16 3391 Humboldt mouth of Little River Comment
  POM276520  Lupinus rivularis Lyman D. Benson 1928-7-10 423 Humboldt Fortuna 30 Comment
  HSC46925  Lupinus tracyi Brad Klipfel 1973-8-3 308 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC14059  Luzula comosa R. I. Bonn 1965-5-7 31 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC74171  Luzula comosa M. A. Baker 1980-7-23 3182 Humboldt Near Orleans Mtn. 1859 Comment
  RSA168863  Luzula comosa Joseph P. Tracy 1928-6-17 8449 Humboldt Serpentine soil near Ruby Creek, Willow Creek Canyon, along Trinity Highway. Comment
  CAS-BOT-BC441226  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain 1432 Comment
  HSC63876  Luzula parviflora M. A. Baker 1979-6-29 959 Humboldt Hopkins Creek 750 Comment
  SD46471  Luzula parviflora E. K. Balls, L. W. Lenz 1956-6-12 21662 Humboldt 4.4 miles southwest from Willow Creek, along US Highway 299 to Arcata. Common in shade on moist to wet seeps. 366 Comment
  UC1157634  Luzula parviflora Milo S. Baker 1947-8-6 11870 Humboldt Prairie Cr. State Park Comment
  UC1239797  Lycopodiella inundata Joseph P. Tracy 1938-7-6 16022 Humboldt Big Lagoon 6 Comment
  HSC77926  Lycopodium clavatum L. P. Janeway 1984-3-14 715 Humboldt Arcata Community Forest, at edge of access road, NW-facing slope. 229 Comment
  UCD23453  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  UC1198266  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  JEPS20935  Lysichiton americanus W. L. Jepson 1902-6 1925 Humboldt Eureka to Arcata; Hupa Indian Reservation Comment
  UC176173  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  RSA0023106  Lythrum Robert F. Thorne, Percy C. Everett 1965-8-8 35251 Humboldt North edge of Eureka, east of Highway 101 5 Comment
  JEPS93178  Lythrum hyssopifolia Margriet Wetherwax and Kevin Downing 1993-8-9 2457 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 Comment
  POM284990  Madia citriodora Lyman Benson 1929-7-11 1784 Humboldt Humboldt County: S of Garberville Comment
  JEPS7387  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC717988  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi se of Petrolia; Mattole River, between Upper Mattole and Honeydew Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  UC495629  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt Lawrence Creek, at crossing of the Kneeland Road 609 Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC89446  Maianthemum dilatatum P. A. Daly 1984-5-13 23 Humboldt Along trail at Trinidad Head 61 Comment
  UC15043  Maianthemum dilatatum J. P. Tracy 1901-5-5 1064 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC508518  Maianthemum dilatatum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  SBBG1057  Maianthemum racemosum H. and M. Dearing 1933-5-16 259 Humboldt Weott Comment
  HSC54225  Maianthemum racemosum subsp. amplexicaule Griswold, Butler 1979-7-12 7290 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  RSA1087  Maianthemum racemosum subsp. amplexicaule E. R. Johnson 1928-8-26 1147 Humboldt Arcata. Comment
  CAS-BOT-BC511452  Maianthemum racemosum subsp. amplexicaule Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  UC33287  Malacothrix floccifera C. C. Marshall 1888-1-1 Humboldt Comment
  UC34160  Malacothrix floccifera Hy-Am Pum 1888-7-23 Humboldt Comment
  CAS-BOT-BC140132  Malus fusca L. R. Abrams; G. T. Benson 1924-5-17 10730 Humboldt Trinidad Head Comment
Read comments
Jun 17 2020
  CAS-BOT-BC140134  Malus fusca C. B. Wolf 1930-10-26 1766 Humboldt So. edge of Big Lagoon near the Redwood Highway Bridge 3 Comment
  JEPS45607  Malus fusca Milo S. Baker 1923-8-5 196 Humboldt near Orick; North Coast Comment
  UC1198759  Malus fusca J. P. Tracy 1901-5-12 1090 Humboldt immediate vicinity Eureka 0 Comment
  UC668145  Malva neglecta Joseph P. Tracy 1937-9-6 15320 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC902195  Malva nicaeensis Joseph P. Tracy 1946-11-10 17662 Humboldt Trinidad 3 Comment
  POM87677  Marah oregana L. R. Abrams, R. Bacigalupi 1922-6-25 8283 Humboldt Big Lagoon, south of Orick. Comment
  UCR27001  Marah oregana A. C. Sanders 1981-8-4 2261 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  UC505102  Marah oregana Joseph P. Tracy 1929-5-19 8598 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC34137  Melica californica Joseph Burtt Davy 1899-6-8 5343 Humboldt Bells Springs Comment
  HSC98014  Melica harfordii Cara Witte 2007-7-12 531 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  HSC103081  Melica stricta Sydney Carothers 2014-7-3 17 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  HSC58679  Melica subulata G. L. Clifton, Griswold 1979-8-2 12213 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD88677  Melica subulata Joseph. P. Tracy 1942-6-2 17100 Humboldt 2 miles north of Bridgeville. 609 Comment
  HSC10331  Melica subulata DWC 1956-4-27 Humboldt Mattole area. Comment
  HSC15520  Melilotus albus M. J. Athey 1970-10-12 16 Humboldt Trinidad, along road to Luffenholtz Beach. Comment
  HSC59671  Melilotus albus George Kirn 1977-10-21 Humboldt Eureka, Bayfront, 1/2 mi. E of Hwy. 255 8 Comment
  UC577385  Melissa officinalis Joseph P. Tracy 1925-8-16 7232 Humboldt near the South Fork Trinity River Valley (around farm); Northern Coast Ranges, Trinity River Valley 182 Comment
  OBI13658  Mentha aquatica Joseph P. Tracy 1947-11-9 17945 Humboldt Ferndale 9 Comment
  HSC12565  Mentha pulegium D. La Conte 1970-7-7 1 Humboldt Comment
  UC1239692  Mentha pulegium Joseph P. Tracy 1916-9-5 4772 Humboldt 4 mi above mouth of South Fork of Eel River; South Fork of Eel River 60 Comment
  UC577381  Mentha pulegium Joseph P. Tracy 1934-7-9 13339 Humboldt Harris 609 Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  RSA53803  Mentzelia laevicaulis H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  CAS-BOT-BC348373  Micropus californicus var. californicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified 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
  SEINET11601912 Image available Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Show Camp, ca. 9 miles S of Ranger Station. In sphagnum bog SE end of the lake Comment
  CAS-BOT-BC322686  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  SEINET11810179  Microseris laciniata H. P. Chandler 1901-1 1408 Humboldt Klamath River 244 Comment
  UC302297  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1926-5-2 7438 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC6099  Microseris nutans J. P. Tracy 1930-7-16 8900 Humboldt Near McKay Camp. 1677 Comment
  HSC74440  Microseris nutans M. A. Baker 1980-6-28 2478 Humboldt Near Mad River Buttes 1445 Comment
  CHSC57440  Microsteris gracilis L. P. Janeway 1984-6-23 899 Humboldt Titlow Hill. 1478 Comment
  UC1103331  Mimulus alsinoides Joseph P. Tracy 1925-4-5 6954 1/2 Humboldt Lawrence Creek slope Kneeland Prairie 762 Comment
  UC1196832  Mimulus arvensis Joseph P. Tracy 1929-4-28 8554 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC582708  Mimulus arvensis H. E. Parks and Joseph P. Tracy 1931-5-9 12541 Humboldt near Miranda 60 Comment
  POM257751  Mimulus aurantiacus var. aurantiacus C. L. Hitchcock, J. S. Martin 1939-7-14 5439 Humboldt Bluffs facing sea at Shelter cove Comment
  UC176996  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1912-6-9 3646 Humboldt Alton Northern Coast Region 30 Comment
  JEPS28968  Mimulus breweri Joseph T. Gregory 1935-7-28 792 Humboldt head Devil's Hole; Trinity Summit 1828 Comment
  UC147914  Mimulus grandis J. P. Tracy 1900-8-5 911 Humboldt immediate vicinity Eureka 0 Comment
  HSC102503  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1488 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  JEPS86884  Mimulus guttatus David M. Thompson 1986-3-26 856 Humboldt 100 ft s Siskiyou Co. line (along Hwy 96, Somes Bar, at confluence of rivers); Klamath River, Salmon River 61 Comment
  HSC45092  Mimulus guttatus R. Sutherland 1978-5-12 13 .12578 Humboldt 290 Comment
  HSC70317  Mimulus guttatus subsp. micranthus M. A. Baker 1980-6-7 1868 Humboldt Near Ammon Creek 732 Comment
  UC169096  Mimulus inodorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5500 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  UC41881  Mimulus inodorus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  POM265898  Mimulus kelloggii Lincoln Constance, R. C. Rollins 1942-5-12 2894 Humboldt At junction of Klamath and Salmon rivers, 1 mile south of Somes Bar. 152 Comment
  UC162580  Mimulus layneae Joseph P. Tracy 1911-7-8 3443 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  RSA54140  Mimulus layneae H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail. 1524 Comment
  HSC56179  Mimulus moschatus G. L. Clifton, Griswold 1979-8-1 12094 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC73736  Mimulus moschatus M. A. Baker 1980-7-22 3090 Humboldt Near Grogan Hole. 1676 Comment
  HSC97442  Mimulus moschatus Ivy Watson 2008-9-11 8 Humboldt Blue Lake, 300 m downstream of the Hatchery Rd. bridge, N bank 22 Comment
  HSC98844  Mimulus moschatus Cara Witte 2008-7-11 876 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC99450  Mimulus primuloides var. primuloides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 100 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-BC433010  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt Along trail from Hoopa to the summit. Trinity Summit. Near Box Camp 1524 Comment
  UC11410  Mitella diversifolia J. Burtt Davy 1899-6-23 5753 Humboldt about half way to summit; North Coast Ranges, Trinity Summit Comment
  UC14518  Mitella ovalis W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC303176  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UC1051581  Mitella trifida Joseph P. Tracy 1935-7-23 14151 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC50941  Moehringia macrophylla G. L. Clifton, Overton 1979-6-3 3764 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC99385  Moehringia macrophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 34 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC577361  Monardella odoratissima subsp. glauca Joseph P. Tracy 1933-7-26 12913 Humboldt Grouse Mountain North Coast Ranges 1630 Comment
  CAS-BOT-BC215568  Monardella odoratissima subsp. pallida Doris Kildale Gillespie 1931-6-7 10625 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC1222870  Monardella purpurea Joseph P. Tracy 1950-7-27 18920 Humboldt at intersection of Haynes Flat Road Coon Mountain 944 Comment
  CAS-BOT-BC220516  Monardella villosa Marcus E. Jones 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  UC177170  Monardella villosa subsp. villosa Joseph P. Tracy 1912-8-1 3961 Humboldt Opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC479138  Monardella villosa subsp. villosa Marcus E. Jones, A. M. 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  HSC20905  Monotropa uniflora Dr. H. Baer Aug 1971 Humboldt Redwood Acres, Eureka, CA Comment
  CAS-BOT-BC444804  Montia diffusa Harley P. Chandler 1901-5-1 1271 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  HSC32127  Montia fontana D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5587 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC70951  Montia linearis J. M. DiTomaso 1981-5-15 2007 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  OBI22021  Muhlenbergia filiformis Joseph P. Tracy 18-Sep-19 5233 Humboldt Trinity Summit 1829 Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  JEPS70782  Myosotis latifolia W. L. Jepson 1934-5-7 16685 Humboldt Dyerville Comment
  HSC37855  Myosotis micrantha Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  HSC69535  Myosotis sylvatica R. Kalal 1979-5-20 73 Humboldt Logging road E of HSU campus, Arcata 58 Comment
  HSC31423  Myosurus minimus Rudy Becking 1974-5-5 Humboldt Samoa dunes near USCG Station Comment
  UC526765  Nassella pulchra Joseph P. Tracy 1929-5-5 8562 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  JEPS79936  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek Schoolhouse Trinity River Valley, Willow Creek 152 Comment
  HSC102140  Navarretia capillaris M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1044 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1197901  Navarretia capillaris Joseph P. Tracy 1935-7-28 14314 1/2 Humboldt head Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  HSC56058  Navarretia divaricata G. L. Clifton, Griswold 1979-7-31 11693 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCD39809  Navarretia divaricata Joseph P. Tracy 1932-7-11 10395 Humboldt Trinity Summit, open places at Corral Prairie. 1584 Comment
  UC52826  Navarretia divaricata subsp. vividior Chesnut and Drew 1888-7-23 Humboldt Hyampum Comment
  UC133641  Navarretia divaricata subsp. vividior Joseph P. Tracy 1906-7-4 2524 Humboldt near Hydesville (near mouth of Yager Creek); Northern Coast Region 60 Comment
  UC23649  Navarretia intertexta Harley P. Chandler Jun 1901 1411 Humboldt Klamath River North Coast Ranges 243 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC198634  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Coast Ranges 152 Comment
  SEINET200382  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC17146  Navarretia squarrosa S. V. Thompson 1967-7-24 22 Humboldt Near Boulder Creek Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  SEINET200629  Navarretia tagetina Joseph P. Tracy 1906-7-19 4709 Humboldt Bosworths, on Laribee Creek. 457 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
  UC249522  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC97984  Nemophila menziesii var. atomaria Andrew Byers; Stuart E Richardson III 2005-6-10 9 Humboldt 7.4 mi south of Hwy 299 on NF1. Coldspring Camp. 1357 Comment
  RSA74751  Nemophila menziesii var. atomaria Albert M. Vollmer, L. Beane 1951-6-6 122 Humboldt On road between Orick and Weitchpec. Comment
  UC562595  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  UC1239749  Nemophila parviflora Joseph P. Tracy 1921-4-24 5437 Humboldt Phillipsville Flat Northern Coast Ranges, , South Fork Eel Ri (South Fork Eel River) 91 Comment
  UC673116  Nemophila parviflora Joseph P. Tracy 1940-7-7 16666 Humboldt Brouse Mt. Grouse Mt. (on banks) 1463 Comment
  HSC71030  Nemophila pedunculata Thomas W. Nelson 1977-4-20 3322 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UC562591  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7890 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC60545  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie - summit rock pile. 853 Comment
  POM266039  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 miles NE of Weitchpec. 122 Comment
  CAS-BOT-BC142290  Oemleria cerasiformis L. R. Abrams 1918-6-16 7190 Humboldt Willow Creek Comment
  CAS-BOT-BC142292  Oemleria cerasiformis Doris K. Kildale; J. W. Gillespie 1929-6-25 8391 Humboldt Pine's Pasture, Eureka Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  UC154098  Oenanthe sarmentosa J. P. Tracy 1900-7-22 902 Humboldt immediate vicinity Eureka 0 Comment
  CDA38486  Oenanthe sarmentosa Bellue-Goodwin 1932-9-27 s.n. Humboldt Arcata. 0 Comment
  UC1196948  Oenothera glazioviana J. P. Tracy 1898-9-25 281 Humboldt along streets Eureka 0 Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCR111734  Oenothera wolfii D. K. Imper 1993-5-13 s.n. Humboldt North Coast, Lost Coast Road c. 4 miles south of Cape Mendocino at Davis Creek Bridge, from bridge along road c. 300 ft. to north 6 Comment
  UC35308  Orobanche uniflora subsp. occidentalis W. C. Blasdale 1896-6-8 Humboldt Graham's. Comment
  CAS-BOT-BC458030  Orthilia secunda Joseph P. Tracy 1932-7-20 10737 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  UC1212578  Orthilia secunda Francia Chisaki and Helen Sharsmith 1959-8-21 4758 Humboldt Happy Camp just over line from trinity County 914 Comment
  HSC56040  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11605 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC91935  Osmorhiza berteroi E. Mackey 1987-5-7 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS14233  Osmorhiza occidentalis Joseph P. Tracy 1935-7-24 14189 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC642275  Osmorhiza occidentalis Joseph P. Tracy 1932-7-12 10471 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  SEINET3347653 Image available Oxalis oregana Loran C. Anderson 1949-6-4 Humboldt South of Eureka Comment
  UC275339  Oxalis oregana Joseph P. Tracy 1923-4-8 6177 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UCD110982  Oxalis oregana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC89720  Oxalis pes-caprae Larry Levine, Manuel Pachero, , Robert Murphey 1989-2-24 3 Humboldt HSU campus, garden plot SE of Buck House 40 Comment
  JEPS100404 Image available Packera bolanderi var. bolanderi Dean W. Taylor 2007-7-12 20163 Humboldt Pig Toe, approximately where the Humboldt Base Line intersects the Fruit Ranch road 777 Comment
  UC249798  Panicum acuminatum var. acuminatum Joseph P. Tracy 1923-6-24 6350 Humboldt near High Prairie (Felt Prairie, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC526840  Panicum acuminatum var. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD89396  Panicum capillare A. H. Christensen 1916-10-1 s.n. Humboldt Humboldt County. Comment
  SEINET10609310  Panicum capillare var. brevifolium A. Arthur Heller 1924-7-20 Heller 13864 Humboldt Occasional in sand along the El River at Phillipsville, in the redwood belt. Comment
  UC526843  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  JEPS103920  Parentucellia viscosa T. I. and F. M. Chuang 1991-7-7 7865 Humboldt Ca 7 mi S of Orick. Comment
  UC162690  Parentucellia viscosa Joseph P. Tracy 1911-7-12 3530 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  BLMAR620  Paxistima myrsinites Jennifer Wheeler 2011-5-24 620 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  UC519313  Pellaea Joseph P. Tracy 1933-6-13 12561 Humboldt near summit on rd w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mt 1066 Comment
  CAS-BOT-BC69340  Pellaea brachyptera Joseph P. Tracy 1937-7-24 15516 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  JEPS19083  Pellaea brachyptera Joseph P. Tracy 1937-7-24 15516 Humboldt Devil's Hole Trinity Summit 1676 Comment
  UC218629  Pellaea mucronata var. mucronata Joseph P. Tracy 1921-5-30 5494 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC56111  Penstemon anguineus G. L. Clifton 1979-7-31 11873 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC56186  Penstemon anguineus Gilbert Muth 1979-8-1 12118 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC76257  Penstemon anguineus Teresa Prendusi 1981-7-24 482 Humboldt Near Whiteys Peak 1585 Comment
  JEPS28976  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (along river) 152 Comment
  HSC98095  Penstemon laetus subsp. sagittatus Cara Witte 2007-7-3 417 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  JEPS11624  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15512 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  UCR39809  Penstemon newberryi D. K. Imper 1984-6-6 s.n. Humboldt Slate Creek Butte 1372 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
  JEPS26255  Penstemon rattanii Arthur E. Connick 1925-6-1 Humboldt hills near Stone Lagoon; hills near Stone Lagoon 60 Comment
  HSC1079  Pentagramma triangularis Jack Rockwell 1962-4-29 42 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  HSC61769  Pentagramma triangularis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath R. at Pecwan 239 Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UC198598  Perideridia howellii Joseph P. Tracy 1917-9-1 4832 Humboldt Murphy Meadow Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA41945  Perideridia kelloggii H. C. Cantelow 1936-8-28 1723 Humboldt 4 1/2 miles SW of Dinsmore, Fortuna, bluff road Comment
  HSC34702  Persicaria amphibia Thomas W. Nelson 1974-8-24 1705 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC94187  Persicaria capitata Gordon Leppig, Sylvia Leppig 2000-4-16 1298 Humboldt Corner of 17th and J St., Arcata Comment
  HSC12023  Persicaria punctata D. Santana 1970-10-28 Humboldt Mad River off Essex Ln., Hwy. 299 Comment
  HSC6053  Petasites frigidus var. palmatus V. G. Vieira 1963-3-30 38 Humboldt Mad River Comment
  HSC76574  Phacelia bolanderi Denis Kearns 1981-7-8 142 Humboldt Near Bluff Creek 622 Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  UC1222904  Phacelia bolanderi Joseph P. Tracy 1950-6-18 18852 Humboldt Briceland Comment
  RSA275310  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt At head of North Fork of Conley creek. 1463 Comment
  JEPS1200  Phacelia malvifolia Joseph P. Tracy 1934-6-10 13212 Humboldt DRY LAGOON (Along coast in front South End of Stone Lagoon.) Comment
  BLMAR428  Phacelia nemoralis subsp. nemoralis Clara Sander 2004-8-4 428 Humboldt Titlow Hill, along Titlow Hilll road 914 Comment
  RSA170268  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1949-7-7 18333 Humboldt Table Bluff. 91 Comment
  RSA30622  Phacelia nemoralis subsp. oregonensis Lincoln Constance, R. C. Rollins 1942-5-11 2872 Humboldt Hoopa Valley 6 miles S of Hoopa. 122 Comment
  UC1541532  Phalaris angusta Harold E. Parks May 1934 4950 Humboldt head of South Humboldt Bay Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UC820491  Phalaris californica John Thomas Howell 1937-7-31 13718 Humboldt between Redwood Creek and Korbel; btw Redwood Creek and Korbel Comment
  HSC65450  Phalaris canariensis J. P. Smith 1973-5-26 6805 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1127362  Philadelphus lewisii R. Stahelin 1933-7-18 Humboldt Korbel near Riverside Plant. Korbel, 7.5 Q. Comment
  UC11456  Philadelphus lewisii C. C. Marshall 1888-1 Humboldt Comment
  UC1222381  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt 2 mi w Briceland; Redwood Creek Comment
  CAS-BOT-BC253585  Phleum alpinum Joseph P. Tracy 1932-7-10 10388 Humboldt At Corral Prairie, Trinity Summit, Klamath Mountains 1524 Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  HSC17182  Phlox adsurgens D. E. Anderson 1965-5-15 3693 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  RSA141271  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt Trinity Summit; fir woods near Corral Prairie. 1585 Comment
  RSA20789  Phlox adsurgens C. B. Wolf 1937-8-13 9254 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC82620  Phlox diffusa Thomas W. Nelson 1979-7-11 5004 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1198560  Phlox gracilis Joseph P. Tracy 1932-5-10 9933 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1198563  Phlox gracilis J. P. Tracy 1902-6-3 1674 Humboldt near Hubbards's Station (on the Harris-Fruitland Ridge, se part of Humboldt Co.); Harris-Fruitland Ridge 609 Comment
  UC908449  Phlox gracilis Joseph P. Tracy 1935-7-23 14146 Humboldt Corral Summit Trinity Summit 1584 Comment
  NY951520  Picea sitchensis D. H. Goldman 2004-10-30 2901 Humboldt West side of Eel River Drive, about 0.4 mile S of the intersection with Hookton Road and the entrance ramp to Rt. 101 21 Comment
  UC1198275  Picea sitchensis Joseph P. Tracy 1930-9-28 9197 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UCSB21640  Picea sitchensis Haller, John 1967-6-17 Humboldt East side of Stone Lagoon near U.S. 101, 5 miles S. of Orick 15 Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  RSA20776  Pinus attenuata C. B. Wolf 1937-8-13 9240 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC45891  Pinus contorta J. P. Smith 1971-10-6 4962 Humboldt Dunes at end of Murray Rd., McKinleyville, Bulk Collection # 154 Comment
  LA6067  Pinus contorta Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  NY49720  Pinus contorta var. contorta L. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad Comment
  RSA246942  Pinus contorta var. contorta Robert F. Thorne, P. Everett 1965-8-7 35217 b Humboldt Samoa Peninsula. 3 Comment
  HSC90184  Pinus lambertiana Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-22 56 Humboldt USFS Rd. 5N10, 2.4 mi. from its intersection with Rd. 6N08, Bulk Collection # 233 1341 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  JEPS64469  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt s end of Dyerville Bridge (Bull Creek Region, S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  RSA34283  Piperia elegans J. Wendell Howe 1934-7-21 s.n. Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC136587  Piperia michaelii L. B. Kildale 1930-8-3 10495 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1196428  Piperia transversa Joseph P. Tracy 1937-7-11 15419 Humboldt Garberville 152 Comment
  UC1196412  Piperia unalascensis Joseph P. Tracy 1926-5-30 7521 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC35168  Pityopus californicus S. Veirs, G. Lester, R. Yearout 1975-7-10 744 Humboldt Redwood National Park, Gann's Woods. 366 Comment
  UC1239614  Plagiobothrys nothofulvus Joseph P. Tracy 1918-5-1 4909 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC175581  Plagiobothrys nothofulvus Mrs. M. H. Manning 1902-4-14 Humboldt near Hupa Comment
  UC1239621  Plagiobothrys nothofulvus Joseph P. Tracy 1939-4-29 16235 Humboldt near Weitchpec (along Trinity River); along Trinity River 121 Comment
  JEPS30758  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove Trinidad 64 Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  UC139568  Plagiobothrys reticulatus Joseph P. Tracy 1915-6-27 4660 Humboldt near the Creamery (Hydesville); Northern Coast Ranges, Hydesville 91 Comment
  UC180174 Image available Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-14 4469 Humboldt Fort Seward Northern Coast Ranges; Fort Seward, Humboldt Co. 121 Comment
  LA204802  Plagiobothrys scopulorum Joseph P. Tracy; 1935-5-25 13844 Humboldt Fort Seward 106 Comment
  HSC16830  Plantago erecta D. B. Bader 1963-3-15 28 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC1196146  Plantago erecta Joseph P. Tracy 1905-4-30 2174 Humboldt Fairhaven Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UCD124475  Plantago erecta Peter H. Raven 1963-5-15 18371 Humboldt Lanphere Ranch just west of Mad River Slough, near Arcata. Comment
  RSA18012  Plantago hirtella var. galeottiana Carl B. Wolf 1927-8-22 781 Humboldt Big Lagoon. Comment
  OBI11640  Plantago lanceolata Joseph P. Tracy 1947-8-10 17882 Humboldt Eureka Comment
  RSA245522  Plantago lanceolata Larry E. DeBuhr 1973-4-23 988 Humboldt Richardson Grove Redwood State Park. Comment
  RSA246721  Plantago major Robert F. Thorne, Percy C. Everett 1965-8-8 35233 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA68979  Plantago maritima F. W. Peirson 1923-7-11 3857 Humboldt Flats north of Eureka. Comment
  HSC53868  Platanthera dilatata Griswold, Butler 1979-7-10 6348 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC54595  Platanthera dilatata var. leucostachys Overton, Butler 1979-7-24 9669 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC55041  Platanthera dilatata var. leucostachys Gilbert Muth 1979-7-31 11506 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC98718  Platanthera dilatata var. leucostachys Cara Witte 2008-7-1 791 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  HSC99365  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 14 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SFV18500  Platystemon californicus A. M. Deshais 2002-4-12 36 Humboldt Manila Dunes. Comment
  UC1018910  Plectritis brachystemon S. C. Dyal 1938-6-11 719 a Humboldt 11 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 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
  UC1462984  Pleuricospora fimbriolata Joseph P. Tracy 1916-6-25 4740 A Humboldt between Little River and Redwood CreekNorthern Coast Ranges Redwood Creek (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  HSC57304  Pleuropogon refractus G. L. Clifton 1979-7-31 11859 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA10113  Poa Joseph P. Tracy 1930-7-19 9053 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  HSC90689  Poa annua Gail Newton 1982-6-10 3593 Humboldt Elk River Wildlife Area, Eureka Comment
  UC180496  Poa annua Joseph P. Tracy 1914-5-14 4460 Humboldt Fort Seward; North Coast Ranges 121 Comment
  UC1103791  Poa bolanderi Joseph P. Tracy 1935-7-28 14334 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  JEPS71272  Poa douglasii unknown 1925-8-2 119 Humboldt Samoa Comment
  CAS-BOT-BC255848  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 3 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
  HSC39179  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1222 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  SEINET13390783 Image available Poa pratensis A. G. Vestal 1937-6-22 s.n. Humboldt Comment
  RSA63625  Poa secunda Milo S. Baker s.n. Humboldt Near Yager Comment
  HSC47605  Poa secunda subsp. secunda J. P. Smith 1977-4-23 9022 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UCD90884  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5660 Humboldt Hoopa Summit. Comment
  HSC10804  Poa trivialis J. P. Tracy 1926-6-12 7590 Humboldt Near Orick, at Davison's Ranch on Prairie Creek. 61 Comment
  UC589885  Poa trivialis H. S. Yates 1936-6-16 5682 Humboldt near Bayside; Eureka Quad. 9 Comment
  UCD92116  Poa trivialis Collector Unknown 1949-6-1 s.n. Humboldt Miranda. Comment
  SEINET201043 Image available Poaceae Joseph P. Tracy 1923-6-19 6302 Humboldt Wilder ridge. 762 Comment
  JEPS62463  Pogogyne serpylloides Joseph P. Tracy 1921-6-12 5829 Humboldt Butler Valley 152 Comment
  UC1988934  Pogogyne zizyphoroides J. P. Tracy 1938-7-5 16005 Humboldt 45 Comment
  CAS-BOT-BC232889  Polemonium carneum Doris K. Kildale 1926-3-20 1535 Humboldt Big Lagoon Comment
  JEPS69886  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  BLMAR196  Polygala californica Donald Hazlett 1994-6-7 196 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  POM209000  Polygala californica Lincoln Constance 1934-5-23 608 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  UC30051  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC672966  Polygonum davisiae Joseph P. Tracy 1935-7-24 14181 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC414464  Polygonum douglasii Joseph P. Tracy 1930-6-21 8779 Humboldt Larrabee Valley 731 Comment
  HSC55083  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11747 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC672942  Polygonum parryi Joseph P. Tracy 1930-7-6 8855 Humboldt Valley of South Yager Creek 762 Comment
  HSC55057  Polygonum polygaloides subsp. kelloggii G. L. Clifton, Griswold 1979-7-31 11690 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA275327  Polygonum polystachyum Thomas W. Nelson 1978-10-10 4555 Humboldt Growing on Hwy 101 right of way just N of Humboldt State University exit, 1.5 miles. Comment
  UC1052470  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  CAS-BOT-BC421003  Polygonum spergulariiforme Doris K. Kildale 1927-7-17 3757 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC421007  Polygonum spergulariiforme H. E. Parks; J. P. Tracy 1930-9-15 0767 Humboldt Bald Hills, Kneeland Comment
  HSC99028  Polygonum spergulariiforme Cara Witte 2008-7-14 895 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  POM302976  Polygonum spergulariiforme H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  RSA46700  Polypodium californicum Doris K. Kildale 1928-2-19 4262 Humboldt Little River near Trindad Comment
  CHSC53230  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd near the boat ramp. 4 Comment
  SEINET200791 Image available Polypodium glycyrrhiza Joseph P. Tracy 1914-5-14 4429 Humboldt Fort Seward 122 Comment
  UC249780  Polypodium glycyrrhiza Joseph P. Tracy 1924-3-9 6614 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC197920  Polypodium glycyrrhiza Joseph P. Tracy 1914-6-7 4490 Humboldt N. Fork Eel River; Northern Coast Region 0 Comment
  UC955491  Polypodium glycyrrhiza Mrs. Carlotta C. Hall 1924-8-9 234 Humboldt Wilder Ranch near Carlotta 91 Comment
  CAS-BOT-BC72087  Polypodium scouleri T. G. W. s.n. Humboldt Arcata Comment
  HSC77900  Polypodium scouleri L. P. Janeway, Paul Wilson 1984-5-7 763 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  POM232318  Polypodium scouleri I. L. Wiggins 1930-7-11 4686 Humboldt Near Samoa Comment
  HSC79377  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, bluffs of Point Delgada. 5 Comment
  UC1145082  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad 9 Comment
  UC207735  Polypogon interruptus Joseph P. Tracy 1916-9-5 4765 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UCD91206  Polypogon maritimus Joseph P. Tracy 1918-7-1 4967 Humboldt Holmes Flat. Along Eel River from South Fork to Scotia. 60 Comment
  CHSC10130  Polypogon monspeliensis Jerry Parker 1968-11-22 241 .1 Humboldt Mckinleyville beach, floor of vernal pond. Comment
  HSC101540  Polypogon monspeliensis J. P. Smith 2010-5-29 12889 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  UCD91220  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD91383  Polypogon monspeliensis Joseph P. Tracy 1942-6-15 17144 Humboldt Redwood Creek, opposite Redway on South Fork and Eel River. 91 Comment
  UC1440057  Polystichum californicum Danin & H. G. Baker 1960-8-13 598 Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  CAS-BOT-BC76763  Polystichum imbricans subsp. imbricans L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  SD92985  Polystichum imbricans subsp. imbricans W. Bertsch 1953-7-29 215 Humboldt near Weott, Highway 101 60 Comment
  HSC76298  Polystichum munitum Alerie Gizinski 1981-8-31 341 Humboldt Near Whiting Spring 1231 Comment
  HSC89413  Polystichum munitum P. A. Daly 1986-3-12 73 Humboldt Trinidad Head, along trail 61 Comment
  HSC79181  Polystichum munitum C. J. Thomas 1984-9-25 116 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  SEINET4555668 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15050 Humboldt Bolling Grove State Park. Comment
  HSC7226  Populus trichocarpa R. E. Thill 1965-4-24 18 Humboldt 100 yds. from Town & Country Trailer Park beside Mad River Comment
  UC1196665  Populus trichocarpa Joseph P. Tracy 1928-10-21 8521 Humboldt Van Duzen River near Hydesville; Northern Coast Ranges, Van Duzen Range 30 Comment
  UC1196668  Populus trichocarpa E. Ethel Tracy 1918-4-20 Humboldt Scotia Northern Coast Ranges, on Eel River (on Eel River) 30 Comment
  BLMAR306  Potentilla anserina subsp. pacifica Jennifer Anthony-Wheeler 2002-7-1 306 Humboldt South Spit 6 Comment
  CAS-BOT-BC143076  Potentilla anserina subsp. pacifica Annetta Carter 1934-8-17 719 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC96466  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 638 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC90260  Potentilla anserina subsp. pacifica Jean Hanson 1980-5-24 71 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  RSA34306  Potentilla anserina var. grandis C. Kistner 1935-5-10 s.n. Humboldt Samoa. Comment
  HSC44511  Potentilla gracilis Brad Klipfel 1973-7-1 115 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56374  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-11 6398 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC73575  Prosartes hookeri Gail Newton 1980-7-14 1513 Humboldt Near Deadman Ridge 1097 Comment
  HSC74648  Prosartes hookeri M. A. Baker 1980-5-17 1211 Humboldt Near Le Perron Peak 792 Comment
  SBBG980  Prosartes hookeri H. and M. Dearing 1933-5-16 254 Humboldt Weott Comment
  SEINET12057335  Prosartes hookeri F. H. Utech 1977-6-29 s.n. Humboldt Richardson Grove State Park, near redwoods grove and South Fork of Eel River Comment
  CAS-BOT-BC517505  Prosartes smithii L. R. Abrams 1927-9-1 12061 Humboldt Big Lagoon Comment
  HSC15469  Prosartes smithii D. E. Anderson 1965-5-1 3578 Humboldt On Bluff Creek Rd. 4-5 mi. W of junction with Hwy. 96 Comment
  HSC23488  Prunella vulgaris subsp. lanceolata R. A. Vanbianchi 1971-9-24 87 Humboldt Comment
  RSA22550  Prunella vulgaris var. lanceolata H. E. Parks, S. T. Parks 1937-07 24052 Humboldt Spruce Cove, Trinidad. 61 Comment
  RSA43859  Prunus avium H. M. Pollard 1948-7-20 s.n. Humboldt River banks, roadsides and edges of forest near Orleans escape Comment
Read comments
Sep 17 2010
  UC1198772  Prunus emarginata Joseph P. Tracy 1933-7-11 12685 Humboldt near Clear Lake (Grouse Mountain); Grouse Mountain 1524 Comment
  UC205472  Prunus emarginata Joseph P. Tracy 1919-9-24 5296 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1828 Comment
  UC467820  Prunus virginiana var. demissa P. E. Goddard 1907-6-2 f 114 Humboldt Van Duzen Comment
  HSC37671  Pseudognaphalium luteoalbum R. Sutherland 1976-8-13 30 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  CAS-BOT-BC80122  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew Post Office 304 Comment
  HSC99550  Pseudotsuga menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 215 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS40497  Psilocarphus brevissimus var. brevissimus Joseph P. Tracy 1940-7-7 16674 Humboldt Grouse Mountain 1554 Comment
  UC1222910  Psilocarphus oregonus Joseph P. Tracy 1946-5-30 17542 Humboldt 5 mi e Carlotta (by old Strong's District School House, Riverside Park nearby) 60 Comment
  UC169084  Psilocarphus oregonus Joseph P. Tracy 1912-7-30 3890 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC32362  Psilocarphus tenellus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5710 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1222913  Psilocarphus tenellus Joseph P. Tracy 1946-6-23 17597 Humboldt se end Kneeland Prairie (near the old Dan McBride place) 762 Comment
  CAS-BOT-BC94826  Psilocarphus tenellus var. tenellus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 828 Humboldt Humboldt Redwoods S.P., Luke Prairie, N of Mattole Rd., about 3 air mi. W of Highway 101 152 Comment
  HSC102554  Pteridium aquilinum var. pubescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1542 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55135  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-1 11978 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC74314  Pteridium aquilinum var. pubescens M. A. Baker 1980-7-20 3050 Humboldt Near Bell Swamps 1463 Comment
  HSC48700  Pterospora andromedea Brad Klipfel 1973-7-31 257 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC40122  Pterospora andromedea Thomas W. Nelson, James Nelson 1976-7-28 3071 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  RSA178581  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 miles east of Box Camp. Comment
  UC275294  Pterostegia drymarioides Joseph P. Tracy 1923-5-19 6207 Humboldt coast bluffs Trinidad; Northern Coast Ranges, Trinidad 60 Comment
  UCD92898  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt at Eureka. 3 Comment
  HSC17977  Pyrola aphylla D. E. Anderson 1965-5-15 3685 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC63482  Pyrola asarifolia subsp. asarifolia M. A. Baker 1979-6-6 362 Humboldt 1.5 km N of Post Office on Patrick's Point Drive, Trinidad Comment
  HSC45424  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-7-1 3568 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  BLMAR528  Pyrola picta Jennifer Wheeler 2009-6-23 528 Humboldt King range, Paradise Ridge road Comment
  NY42917  Pyrus malus J. B. Walker 1995-4-26 1386 Humboldt Six Rivers National Forest, Hwy 36, 2km W of Cobbs 800 Comment
  HSC54661  Quercus chrysolepis Overton, Butler 1979-7-25 9887 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  SEINET13953254 Image available Quercus chrysolepis R. Earing, C. Cavanaugh, C. Collins 1987-1 109 Humboldt Grays Falls campground approximately 10 miles E. of Willow Creek on highway 299 along the trinity river. Comment
  HSC8236  Quercus garryana D. E. Anderson 1961-9-3 1778 Humboldt Comment
  POM270132  Quercus garryana var. garryana Lyman Benson 1929-7-11 1758 Humboldt North of Garberville about 10 miles. Comment
  HSC8259  Quercus kelloggii D. E. Anderson 1961-9-30 1835 Humboldt Comment
  UC2016503  Quercus vacciniifolia A. R. Kruckeberg 1965-9-11 5867 Humboldt On broad flat summit just s. of Horse Mtn., ca. 7 mi. s. of Hiway 299. Comment
  UC1196506  Quercus wislizeni Joseph P. Tracy 1923-10-14 6577 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1103018  Ranunculus arvensis Joseph P. Tracy 1940-5-17 16554 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
Read comments
Jun 18 2011
  CAS-BOT-BC378851  Ranunculus californicus var. californicus Kenneth Clark 1980-3-22 521 Humboldt on ridge of disturbed hillside above Dead Man's Gulch Comment
  JEPS79959  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC18159  Ranunculus occidentalis var. occidentalis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  SEINET6908793  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1103015  Ranunculus parviflorus Harry B. Tucker 1933-6-13 Humboldt near Ferndale 15 Comment
  UC1196267  Ranunculus parviflorus Joseph P. Tracy 1928-5-13 8434 Humboldt near Centerville; Northern Coast Ranges, Fleener's Gulch 60 Comment
  UC1713273  Ranunculus pusillus Joseph P. Tracy 1919-5-31 5177 Humboldt opposite Willow Creek (shores of pond); Northern Coast Regions, Trinity River, Lack Pond 152 Comment
  UC1196221  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  CDA3483  Ranunculus repens T. C. Fuller 1966-5-24 14709 Humboldt Arcata Bottoms, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  JEPS81053  Ranunculus sardous Thomas Nelson and Doris Niles 1979-5-19 4696 Humboldt Crab Park Ferndale Quad., Eel River (tidal marsh mouth of river, n of County Park) Comment
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Sep 9 2008
  HSC55295  Ranunculus uncinatus Griswold, Butler 1979-7-10 6337 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC56061  Ranunculus uncinatus G. L. Clifton, Griswold 1979-7-31 11703 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC668157  Rhamnus californica Joseph P. Tracy 1934-7-9 13358 Humboldt Dobbyn Creek 152 Comment
  UC870781  Rhamnus californica S. K. Harris and J. P. Tracy 1936-6-10 3254 Humboldt Tracy's Ranch Willow Creek Comment
  UC165815  Rhamnus californica subsp. californica Joseph P. Tracy 1911-7-4 3292 Humboldt near mouth of Willow Creek (tributary of the Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 243 Comment
  UC175739  Rhododendron occidentale Joseph P. Tracy 1912-4-21 3573 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC7884  Rhododendron occidentale var. paludosum N. D. Dennis 1965-4-29 30 Humboldt Old Arcata Rd., 6 mi. S of Arcata Comment
  JEPS2830 Image available Rhododendron occidentale var. paludosum W. L. Jepson 1902-6-23 1916 Humboldt Fortuna to Eureka, Humboldt Co. Comment
  OBI14064  Ribes divaricatum var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  UC303169  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1925-3-15 6943 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  HSC99361  Ribes lacustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 10 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1198917  Ribes lacustre Joseph P. Tracy 1936-8-7 15095 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC101752  Ribes laxiflorum J. P. Smith, J. O. Sawyer 2012-2-27 13437 Humboldt Patrick's Point State Park 41 Comment
  UC154154  Ribes laxiflorum Harley P. Chandler May, 1901 1171 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC20302  Ribes laxiflorum J. W. Johnson 1962-3-22 1436 Humboldt Samoa Peninsula, Miller Farm. Comment
  CAS-BOT-BC173361  Ribes lobbii Lincoln Constance; Reed C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake Comment
  CDA25540  Ribes lobbii Gordon Leppig 1998-6-1 866 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC76263  Ribes lobbii Denis Kearns 1981-7-23 425 Humboldt Near Whiteys Peak. 1524 Comment
  POM214934  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie; Trinity Summit Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  UC183577  Ribes menziesii Joseph P. Tracy 1912-3-31 3568 Humboldt Blue Lake Northern Coast Ranges 30 Comment
  HSC20325  Ribes roezlii J. Sandborg, F. Sandborg 1968-7-19 56 Humboldt Bluff Creek near Notice Creek 793 Comment
  UC1193214  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 mi w Harris Post Office (outside national forest); Quad. 29D3 853 Comment
  BLMAR117  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1995-3-15 117 Humboldt King range, growing at far N end of Honeydew campground-open grassy floodplain 115 Comment
  HSC20349  Ribes roezlii var. cruentum Eugene Andreuccetti 1964-5-2 39 Humboldt 5 mi. from Willow Creek on Hwy. 299 Comment
  UC902114  Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC144693  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg 518 Comment
  CAS-BOT-BC144697  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-7-29 5926 Humboldt Bear River at Capetown 15 Comment
  HSC13750  Romanzoffia californica Doris K. Kildale 1926-3-21 1574 Humboldt Kneeland Prairie Comment
  RSA516379  Romanzoffia californica Barbara Ertter, Thomas Delendick 1987-5-16 6937 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata; base of large volcanic rock on S side of road above Willow Creek. 800 Comment
  UC552250  Romanzoffia californica Joseph P. Tracy 1923-4-29 6196 Humboldt Kneeland Prairie 762 Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  JEPS53849  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC183622  Rorippa curvisiliqua Joseph P. Tracy 1913-6-20 4220 Humboldt Dinsmore's Ranch opposite Buck Mountain (in valley of Van Duzen River); Northern Coast Ranges, in valley Van Duzen River, Buck Mt 762 Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  UC492261  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  HSC98973  Rorippa palustris subsp. occidentalis Cara Witte 2007-6-8 237 Humboldt Intersection of National Forest 1 and 4N38. Intersection to Board Camp Mountain. 1395 Comment
  UC902153  Rosa Joseph P. Tracy 1947-8-24 17889 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146483  Rosa gymnocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Shady run - Scotia Comment
  CAS-BOT-BC146487  Rosa gymnocarpa Doris K. Kildale 1927-5-13 3176 Humboldt Redwood Creek at Berry's 289 Comment
  HSC44515  Rosa gymnocarpa Brad Klipfel 1973-7-1 123 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM275420  Rosa gymnocarpa Lyman D. Benson 1928-7-8 376 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  CAS-BOT-BC146828  Rosa nutkana H. E. Parks; S. T. Parks 1937-5-1 5816 Humboldt Spruce Cove, Trinidad 60 Comment
  UC1199021  Rosa nutkana var. nutkana Joseph P. Tracy 1936-8-17 15151 Humboldt near Still Ranch (2 mi s of Field's Landing) 6 Comment
  JEPS45698  Rosa pisocarpa Joseph P. Tracy 1925-6-7 7079 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCR179289  Rubus R. G. Swinney 1968-3-28 235 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC60308  Rubus armeniacus J. P. Smith, Steve Selva 1970-6-14 3850 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UCD113775  Rubus armeniacus K. Twitchell 1996-5-11 27 Humboldt Crannell, along old Highway 101 at Moonstone Beach access. 36 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
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC147249  Rubus parviflorus Ella Dales Cantelow 1936-5-18 1403 Humboldt 5 mi. N. of Orick Comment
  POM271063  Rubus parviflorus Lyman D. Benson 1928-7-8 387 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  UC1193203  Rubus parviflorus G. W. Tourtillott 1950-8-30 31 Humboldt 1/4 mi e Beale Ranch; Quad. 29C4, e of Beale Ranch 457 Comment
  HSC96515  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Big Lagoon County Park. 3 Comment
  UCD17846  Rubus ursinus H. Olmo 8-10 May 1962 62- 33 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  UCD89721  Rubus ursinus Lindsay Clark 2008-6-23 KRC 6 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 550 Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  BLMAR184  Rumex acetosella Donald Hazlett 1994-6-7 184 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC672930  Rumex acetosella Joseph P. Tracy 1932-7-14 10530 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC100603  Rumex acetosella Carl C. Marshall May 1886 163 Humboldt Everywhere. Comment
  HSC17572  Rumex acetosella R. D. Modafferi 1965-3-19 33 Humboldt 0.9 mi. S of Trinidad on Hwy. 101 305 Comment
  UCSB30608  Rumex acetosella Edwards, David 1974-8-12 Humboldt North side of 7th St., just W. of its overpass of U.S. 101, Arcata. 18 Comment
  JEPS39885  Rumex conglomeratus Lincoln Constance 1934-5-27 696 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  RSA280496  Rumex conglomeratus Lyman Benson 1998-7-11 s.n. Humboldt Weott Ranger Station, Seaward N Coast, S fork Eel. 61 Comment
Read comments
Aug 16 2013
  HSC37577  Rumex crispus J. D. Ackerman 1975-6-10 452 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd. S of Manila Comment
  CHSC23320  Rumex fueginus Robert F. Thorne; P. Everett 1965-8-9 35329 Humboldt Clam Beach County Park; along highway in shallow water of ditch. 3 Comment
  UCD100941  Rumex fueginus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon. Humboldt Coast. Comment
  CAS-BOT-BC433647  Rumex obtusifolius Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  UCD108451  Rupertia physodes K. Esau 1934-5-6 s.n. Humboldt Above Fort Seward. 457 Comment
  UC169305  Rupertia physodes Joseph P. Tracy 1912-7-31 3949 Humboldt open woods near summit of Buck Mountain; Northern Coast Ranges Comment
  JEPS385  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  JEPS79972  Sagina apetala Joseph P. Tracy 1933-5-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  POM318824  Salicornia Patricia Wilder 1968-8-21 4416 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CHSC79815  Salix alba Gordon Leppig; Sylvia Leppig, Kai Leppig 2000-4-16 1297 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, West bank of Hauser Marsh. UTM zone 10, N4525 E407. 1 Comment
  CAS-BOT-BC103817  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  LA208691  Salix exigua var. hindsiana Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt above Trinity River; 1 mi below bridge on Trinity Hwy 152 Comment
  UC481312  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 975 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC104099  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104100  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104102  Salix hindsiana Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  RSA0038361  Salix hindsiana var. leucodendroides Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River. 90 Comment
  CAS-BOT-BC107724  Salix hookeriana Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  CAS-BOT-BC107736  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107740  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107742  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  HSC19969  Salix hookeriana H. E. Parks Sep 1931 1057 Humboldt Trinidad 76 Comment
  HSC90428  Salix hookeriana Jean Hanson 1980-3-8 12 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96617  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  POM161065  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt Near Laren Frost place on Kneeland Road. near Kneeland Prairie. 610 Comment
  POM184871  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-10 1103 -a Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  UC1196632  Salix hookeriana J. P. Tracy 1901-3-31 996 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196676  Salix hookeriana Joseph P. Tracy 1931-3-26 9304 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC176701  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481269  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481345  Salix hookeriana Harold E. Parks 1931-5-12 952 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481398  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC512081  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1224 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
  UC512097  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1212 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  UCD111034  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt 3 miles west of Arcata. Comment
  JEPS14760  Salix laevigata Joseph P. Tracy 1932-7-31 10290 Humboldt along Eel River at mouth of Larrabee Creek; Northern Coast Ranges 30 Comment
  RSA5692  Salix laevigata H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC176690  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1913-6-20 4218 Humboldt Dinsmore's Ranch opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  UC519382  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt meadow at McKay Camp McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC54675  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-4-7 1013 Humboldt immediate vicinity of Eureka 0 Comment
  SJSU164  Salix lasiandra var. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  CAS-BOT-BC107102  Salix lasiolepis Joseph P. Tracy 1933-2-26 10912 Humboldt Miranda, along south fork of Eel River 121 Comment
  CAS-BOT-BC107583  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1254 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107587  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1321 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  HSC55627  Salix lasiolepis Overton, Butler 1979-7-24 9609 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC70352  Salix lasiolepis M. A. Baker 1980-6-7 1841 Humboldt Near Ammon Creek 732 Comment
  JEPS12930  Salix lasiolepis Joseph P. Tracy 1931-5-31 9327 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12967  Salix lasiolepis Joseph P. Tracy 1931-9-26 9696 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  JEPS14751  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC469434  Salix lasiolepis Joseph P. Tracy 1931-10-11 9715 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC481178  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC481807  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC506384  Salix lasiolepis Joseph P. Tracy 1933-4-2 10961 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC506396  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC506509  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512043  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1318 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC526716  Salix lasiolepis Joseph P. Tracy 1934-3-11 13146 Humboldt Weitchpec Northern Coast Ranges, Klamath River 91 Comment
  UCD111588  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01323 Humboldt West slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway. 762 Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  CHSC9645  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1016 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  SBBG57838  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt banks of Eel River, Fortuna 10 Comment
  CAS-BOT-BC125635  Salix melanopsis Harold E. Parks 1931-5-14 0960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  POM362860  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  UC469455  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC481289 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481341  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC481357  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen R. above Bridgeville; Van Duzen R. 300 Comment
  UC519362  Salix melanopsis Joseph P. Tracy 1933-6-7 12515 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  SEINET4855525  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  HSC56194  Salix scouleriana Gilbert Muth 1979-8-1 12137 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  LA208918  Salix scouleriana Harold E. Parks; 1931-5-12 955 a Humboldt Samoa; Humboldt Bay 0 Comment
  SBBG28831  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  UC1196693  Salix scouleriana Joseph P. Tracy 1924-1-20 6597 Humboldt near bay shore Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 3 Comment
  UC1196711  Salix scouleriana Joseph P. Tracy 1942-6-23 17259 Humboldt near Water-dog Lakes Trinity Summit, Water-dog Lakes 1828 Comment
  UC470448  Salix scouleriana Joseph P. Tracy 1927-3-27 7846 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC490505  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512016  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1227 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC126274  Salix sessilifolia Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  JEPS14763  Salix sitchensis Joseph P. Tracy 1932-8-27 10745 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UC1225919  Salix sitchensis Joseph P. Tracy 1942-7-26 17295 Humboldt near the Redwood House S. Yager Creek 609 Comment
  UC469468  Salix sitchensis Joseph P. Tracy 1931-11-8 9748 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481383  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Van Duzen R. Alton; , Alton 15 Comment
  UC490501  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC504052  Salix sitchensis Jim Davis Apr 25 1933-Apr 27 1933 6 Humboldt around Eureka Eureka Comment
  UC506364  Salix sitchensis Joseph P. Tracy 1933-3-19 10930 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC504017  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  JEPS12742  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC57142  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-26 9926 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  CDA42178  Sambucus racemosa Bell 1945-7-14 s.n. Humboldt Highway #54. 0 Comment
  CAS-BOT-BC235121  Sambucus racemosa var. racemosa Doris K. Kildale 1927-3-22 2938 Humboldt North Fork of Elk River Comment
  HSC3969  Sambucus racemosa var. racemosa E. W. Styskel 1963-4-2 13 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. Comment
  UC168945  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-6-19 3155 Humboldt near Forks of Eel River; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD137263  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt Camp Grant, near junction of South Fork and main Eel River. 60 Comment
  HSC26344  Sanicula arctopoides Thomas W. Nelson 1971-4-12 377 Humboldt S spit of Humboldt Bay. Comment
  HSC100692  Sanicula bipinnatifida Carl C. Marshall Apr 1886 184 Humboldt Hill at Scottsville. Comment
  HSC21629  Sanicula bipinnatifida D. E. Anderson, N. J. Cole 1965-4-13 13 Humboldt 2 1/2 mi. SE of Maple Creek Rd. junction with Bald Hills Road, SE of Korbel Comment
  HSC37847  Sanicula crassicaulis Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  HSC21636  Sanicula crassicaulis D. E. Anderson 1962-5-1 2193 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UC1022532  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 3 X452 Humboldt 4.4 mi e of Bridgeville (below road) Comment
  HSC55730  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10214 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  UC642310  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  JEPS992  Sanicula laciniata Joseph P. Tracy 1938-3-27 15701 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Miranda, South Fork Eel River 121 Comment
  UC1755277  Sanicula tracyi Dean W. Taylor 2007-7-11 20159 Humboldt White Oak Opening, along Forest Highway 1 1254 Comment
  HSC55291  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6264 Humboldt Near Board Camp Mountain 1372 Comment
  JEPS62817  Satureja douglasii W. L. Jepson 1932-8-8 16485 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
  UC1198877  Saxifraga californica Joseph P. Tracy 1922-5-29 6076 Humboldt head of South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  JEPS47545  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC55842  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-25 10795 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA0101647  Sceptridium multifidum Doris K. Kildale 1937-8-26 15341 Humboldt Christmas Prairie. Comment
  POM126085  Schoenoplectus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville, northern coast ranges 3 Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  CAS-BOT-BC111697  Schoenoplectus pungens var. badius David Daniels Keck 1938-8-5 4772 Humboldt Big Lagoon, among rocks in open spots on beach. Comment
  UC668010  Scirpus diffusus Joseph P. Tracy 1938-7-4 15996 Humboldt Iaqua 609 Comment
  UC183949  Scirpus maritimus Joseph P. Tracy 1909-9-19 3099 Humboldt Samoa Northern Coast Region, region about Humboldt Bay, Samoa 0 Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  SEINET3914801  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Flora of the Lassics. At Alder Springs along 2S08.; 0 1554 Comment
  UC1152056  Scirpus microcarpus Joseph P. Tracy 1950-8-7 19269 Humboldt meadow at Box Camp (Trinity Summit); , meadow at Box Camp 1463 Comment
  CAS-BOT-BC110929  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 mi. No of Orick at Davison's Ranch on Prairie Creek. 60 Comment
  RSA183587  Scoliopus bigelovii R. D. Zortman 1963-3-16 13 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 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
  UC1103492  Scoliopus bigelovii Joseph P. Tracy 1936-4-26 14808 Humboldt Kneeland Prairie 762 Comment
  SEINET12051381  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -279 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1222533  Scoliopus bigelovii Joseph P. Tracy 1950-4-20 18611 Humboldt 1 mi. w. Dinsmore's (along Van Duzen R., opposite Buck Mt.); Van Duzen R. 762 Comment
  RSA89764  Scrophularia californica Philip A. Munz 1954-7-25 19878 Humboldt Behind dunes at Samoa. Comment
  UC1239705  Scutellaria antirrhinoides Joseph P. Tracy 1927-7-24 8296 Humboldt Mattole Valley 152 Comment
  UC1239708  Scutellaria antirrhinoides Joseph P. Tracy 1935-6-23 13966 Humboldt French Camp Ridge 1066 Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  CDA41033  Scutellaria siphocampyloides B. F. Kemp 1958-7-5 838 -58 Humboldt Knight Ranch, 4 miles north of Willow Creek. 0 Comment
  HSC58203  Sedum laxum Walter Overton 1979-8-1 12309 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC65962  Sedum laxum subsp. flavidum Gail Newton 1980-7-15 1549 Humboldt Near Sims Mtn. 1311 Comment
  HSC40703  Sedum laxum subsp. heckneri Thomas W. Nelson, Jane P. Nelson 1976-7-1 2898 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC70725  Sedum radiatum Gail Newton 1980-7-14 1520 Humboldt Near Deadman Ridge 1097 Comment
  HSC72663  Sedum radiatum M. A. Baker 1980-6-26 2469 Humboldt Near Sims Creek 610 Comment
  HSC96071  Sedum spathulifolium J. McIntire, S. Lyon 2005-6-10 8 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 945 Comment
  HSC49097  Sedum spathulifolium var. pruinosum Patricia Shesgreen 1978-7-30 120 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  HSC6477  Sedum spathulifolium var. pruinosum D. E. Anderson 1961-8-25 1751 Humboldt Beach 1.5 mi. S of Trinidad Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  UCR148800  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  CAS-BOT-BC62181  Selaginella oregana Doris K. Kildale 1925-12-19 1471 Humboldt Camp Bauer - near Korbel on Mad River Comment
  UC1239800  Selaginella wallacei Joseph P. Tracy 1913-5-4 4062 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC48773  Senecio elegans Brad Klipfel 1975-5-22 621 Humboldt Near the city of Eureka airport S of Samoa Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  CAS-BOT-BC364019  Senecio integerrimus var. major Doris Kildale 1931-5-10 10583 Humboldt Snow Camp Comment
  CDA7631  Senecio jacobaea E. Eberwein 1958-9-4 1197 -58 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  RSA167401  Senecio mikanioides Joseph P. Tracy 1942-1-25 17054 Humboldt Near Ferndale along Russ Creek. Comment
  UC1199491  Senecio minimus Joseph P. Tracy 1936-8-23 15161 Humboldt Carlotta Northern Coast Ranges Comment
  SJSU8451  Senecio minimus H. T. Harvey 1977-8-8 620 Humboldt delta lands of Eel R c. 4 mi NW of Ferndale Comment
  UC204824  Senecio minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Ocean Beach at Humboldt Bay 60 Comment
  CAS-BOT-BC364330  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  UC1223185  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River Bar at mouth Van Duzen (near Alton); Eel River Bar at mouth of Van Duzen Comment
  HSC12561  Senecio vulgaris D. La Conte 1970-11-7 10 Humboldt Comment
  CAS-BOT-BC85837  Sequoia sempervirens Doris K. Kildale 1926-8-23 2557 Humboldt North Fork of Eel River Comment
  IRVC3682  Sequoia sempervirens R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  HSC12703  Sherardia arvensis Jana Kattenhorn 1970-10-28 148 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC16012  Sidalcea malachroides J. P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 mi. SE of Arcata. 610 Comment
  UC1197964  Sidalcea malachroides Joseph P. Tracy 1937-6-20 15358 Humboldt s Ferndale (Wild Cat Ridge); s of Ferndale, Wild Cat Ridge 457 Comment
  UC153948  Sidalcea malachroides J. P. Tracy 1910-5-22 3141 Humboldt vicinity Eureka; vicinity of Eureka 0 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  BLMAR280  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 280 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  JEPS109785  Sidalcea malviflora subsp. patula Dean W. Taylor 2005-6-10 19344 b Humboldt Branstetter Ridge, ca. 1 mile southeast along the ridge from Twin Peaks 701 Comment
  UC176964  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3596 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  UC902191  Sidalcea malviflora subsp. patula Harold E. Parks May 1949 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC205761  Sidalcea oregana David Imper 1985-8-1 s.n. Humboldt Six Rivers National Forest. Approximately 1/2 mile west of Ladder Rock alongside trail 1371 Comment
  HSC46167  Sidalcea oregana subsp. eximia J. P. Smith, Steve Selva 1970-6-30 4122 Humboldt Comment
  UC668141  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  UC902187  Sidalcea oregana subsp. eximia Joseph P. Tracy 1947-7 17822 Humboldt Box Camp Meadow , Box Camp Meadow (Trinity Summit) 1463 Comment
  HSC40101  Sidalcea oregana subsp. oregana Thomas W. Nelson, James Nelson 1976-7-28 3045 Humboldt Alder Springs Campground along 2S08 1555 Comment
  UC1137920  Silene californica H. S. Yates 1936-6-23 5874 Humboldt 4 mi nne Cathay Peak; Dyerville Quad., nne of Cathay Peak Comment
  UC535704  Silene californica Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  UC1541416  Silene californica H. E. Parks May 1930 Humboldt near Carlotta; near Carlotta Comment
  HSC57065  Silene douglasii Overton, Butler 1979-7-24 9735 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC78968  Silene gallica L. P. Janeway 1984-5-16 789 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. just N of the boat ramp 3 Comment
  RSA477903  Silene hookeri Miss Hutchinson 1927-05 s.n. Humboldt [Unspecified] Comment
  CAS-BOT-BC181229  Silene hookeri subsp. bolanderi H. E. Parks; J. P. Tracy 1930-5-25 0791 Humboldt Laribee Valley 792 Comment
  POM193013  Silene hookeri subsp. bolanderi H. E. Parks, Joseph P. Tracy 1930-5-25 0791 Humboldt Laribee Valley. 793 Comment
  CAS-BOT-BC389066  Silene laciniata subsp. californica Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC70825  Silene laciniata subsp. californica M. A. Baker 1980-6-7 1819 Humboldt Near Ammon Creek 115 Comment
  UC180226  Sinapis arvensis Joseph P. Tracy 1914-10-11 4635 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC27000  Sisyrinchium californicum Brad Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, N of Trinidad Comment
  HSC21312  Solanum parishii D. E. Anderson 1965-6-1 3778 Humboldt Along Friday Ridge Rd. about 3 mi. NE of its Jct. with Titlow Hill Rd. 1067 Comment
  UC1196158  Solanum sarrachoides J. P. Tracy Sept. 1907 2605 Humboldt immediate vicinity of Eureka 0 Comment
  UC1196155  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15529 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  CAS-BOT-BC365444  Solidago elongata L. R. Abrams 1927-9-1 12064 Humboldt Stone Lagoon Comment
  HSC6188  Solidago elongata G. Ghatala 1967-7-25 13 Humboldt Comment
  UC630465  Solidago elongata H. E. and S. T. Parks September 1937 24081 Humboldt Spruce Cove , Spruce Cove (Trinidad) 64 Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1541619  Solidago velutina subsp. californica H. E. and S. T. Parks 1937-9-1 24081 Humboldt Trinidad , Trinidad (Spruce Cove) 64 Comment
  UC673079  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16702 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  UC127601  Soliva sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  CHSC31290  Sonchus asper Mark Stopher 1980-6-4 96 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC1199365  Sonchus asper Joseph P. Tracy 1935-5-19 13809 Humboldt near Myers (South Fork Eel River, North Coast Ranges); North Coast Ranges, South Fork Eel River 91 Comment
  HSC40944  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC236543  Sorghum halepense Henry M. Pollard 1945-9-4 s.n. Humboldt Nera Camp Creek, east side of Klamath River Comment
  HSC21345  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC198647  Sparganium emersum var. emersum Joseph P. Tracy 1917-5-30 4808 Humboldt near mouth of Little River; Northern Coast Ranges 6 Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  HSC90229  Spartina densiflora L. Watson, J. Meninga Aug 1990 11 Humboldt Near Manila, Mad River Slough and Dunes, 200 yds. N of parking lot Comment
  RSA244949  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  HSC79185  Spergula arvensis L. P. Janeway 1984-2-4 710 Humboldt Along Bayside Rd. NW of Jacoby Creek School 18 Comment
  HSC70955  Spergularia rubra Thomas W. Nelson 1977-6-15 3430 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC19753  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  POM17174  Spiraea douglasii J. B. Feudge 1923-7-23 57 Humboldt Trinidad. 9 Comment
  RSA472779  Spiraea douglasii Charlotte M. Hoak 1931-7-14 s.n. Humboldt Alton. Comment
  UC1199030  Spiraea douglasii J. P. Tracy 1901-6-30 1198 Humboldt immediate vicinity Eureka 0 Comment
  UCD114055  Spiraea douglasii D. Wiesendanger; F. Randall 1926-8-1 1543 Humboldt Near Arcata. Comment
  UC666994  Spiranthes porrifolia Joseph P. Tracy 1937-6-26 15376 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC275578  Spiranthes romanzoffiana Joseph P. Tracy with H. E. Parks 1924-8-3 6767 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC93382  Stachys B. Castro; L. Janeway 1996-7-29 688 Humboldt Ca 4 air mi NE of Orick, along Lost Man Creek Trail. 36 Comment
  JEPS63050  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC577316  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS63027  Stachys ajugoides var. rigida Milo S. Baker 1923-7-16 18 Humboldt 4 mi se Eureka Comment
  UC162688  Stachys ajugoides var. rigida Joseph P. Tracy 1911-7-11 3515 Humboldt hills along Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  UCD125774  Stachys chamissonis Linda M. Barker 1976-8-24 1683 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA82579  Stachys emersonii F. W. Peirson 1926-7-12 7034 Humboldt Redwood Creek, Orick. Comment
  HSC63637  Stachys rigida J. P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA43679  Stachys rigida subsp. quercetorum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. 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
  HSC57674  Stellaria crispa G. L. Clifton, Griswold 1979-7-25 10867 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC4279  Stellaria media Jack Rockwell 1962-4-5 30 Humboldt N bank of Van Duzen River, E of Hwy. 101 Comment
  UC204697  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  SEINET10603857  Stipa lemmonii Henry N. Bolander Bolander 6469 Humboldt Moist Places. Red Mountain. Comment
  RSA430015  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-4 3587 Humboldt Along W side of road north of Alder Spring, head of N Fork of Conley Creek. 1494 Comment
  UC162598  Streptanthus tortuosus Harley P. Chandler June 1901 1517 Humboldt Klamath River North Coast Ranges 426 Comment
  UC154162  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1383 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC73741  Swertia radiata M. A. Baker 1980-7-19 2995 Humboldt Near Bret Hole. 1814 Comment
  JEPS12883  Symphoricarpos albus var. laevigatus Lincoln Constance 1934-6-4 821 Humboldt Look Prairie South Fork Eel River, Bull Creek Region (and Bull Creek road to Dyerville) Comment
  CAS-BOT-BC269571  Symphoricarpos albus var. laevigatus Doris K. Kildale 1925-8-21 1310 Humboldt Yager Creek - near head of bald hills 914 Comment
  HSC96486  Symphyotrichum chilense Gordon Leppig 1997-8-13 631 Humboldt Big Lagoon County Park 3 Comment
  CAS-BOT-BC98926  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1066 Comment
  CAS-BOT-BC99369  Symphyotrichum subspicatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  UC165029  Symphyotrichum subspicatum J. P. Tracy 1900-9-3 936 Humboldt immediate vicinity of Eureka 0 Comment
  UC672289  Symphyotrichum subspicatum Frank W. Peirson 1923-7-11 3882 Humboldt 7 mi n Arcata Comment
  UC963847  Symphyotrichum subspicatum H. E. Parks and M. Jackson 1941-8-1 24197 Humboldt Big Lagoon North Coast Ranges Comment
  UC902235  Synthyris reniformis Joseph P. Tracy 1945-5-15 17509 Humboldt Kneeland Prairie 762 Comment
  UC1198059  Synthyris reniformis Joseph P. Tracy 1909-5-16 2969 Humboldt Coast bluffs 3 mi n Trinidad; Northern Coast Ranges 30 Comment
  UC1222775  Synthyris reniformis Joseph P. Tracy 1950-8-4 19263 Humboldt Grasshopper peak, head of Canoe Creek (in Bull Creek State Park); Bull Creek State Park Comment
  HSC6249  Tanacetum bipinnatum R. L. Jarvis 1962-4-29 40 Humboldt Freshwater Lagoon, 1 mi. S of Orick on Hwy. 101 0 Comment
  CAS-BOT-BC376895  Taraxacum officinale Doris K. Kildale 1926-5-24 1683 Humboldt Ryan Slough near Occidental Ranch Comment
  JEPS36856  Taraxacum officinale Lincoln Constance 1934-6-12 864 Humboldt Bull Creek road and n bank of South Fork Eel River, Dyerville South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC30348  Taraxacum officinale Dale R. Gradek 1974-5-15 35 Humboldt Adjacent to road across the playground in Redwood Park 61 Comment
  HSC6259  Taraxacum officinale S. R. Johnson 1965-3-16 13 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC6268  Taraxacum officinale Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC54591  Taxus brevifolia Overton, Butler 1979-7-24 9659 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC13714  Taxus brevifolia Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC54785  Taxus brevifolia P. E. Goddard Jul 1 1901-Aug 1 1901 127 Humboldt Mud Springs Trinity Summit Trail, Mud Springs Comment
  HSC44530  Tellima grandiflora Brad Klipfel 1973-7-1 138 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56142  Tellima grandiflora G. L. Clifton, Griswold 1979-8-1 11969 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC71158  Tellima grandiflora Thomas W. Nelson 1977-6-15 3425 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  HSC20427  Tellima grandiflora T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  HSC103126  Thelypteris nevadensis M. Mesler 2009-7-19 810 Humboldt South Fork Mtn. Along FS 1, 11.8 miles from intersection with rd 4N12 1486 Comment
  NY17203  Thuja plicata E. K. Balls 1953-10-11 18632 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA89625  Thuja plicata E. K. Balls, P. C. Everett 1953-10-13 18653 Humboldt 10.6 mi E of jct of Hwys 101 and 299 between Arcata and Willow Creek. 244 Comment
  UC275508  Thuja plicata Joseph P. Tracy 1923-6-24 6365 Humboldt Bald Mountain North Coast Ranges, Bald Mountain (in cold wet meadow near high prairie) 1066 Comment
  CAS-BOT-BC88323  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  CAS-BOT-BC88327  Thysanocarpus curvipes Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 30 Humboldt Across Route 299 from sign for White's Bar Picnic area. Comment
  CAS-BOT-BC436904  Tiarella trifoliata var. unifoliata Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Bull Creek Comment
  UC154080  Tolmiea diplomenziesii J. P. Tracy 1900-5-30 832 Humboldt immediate vicinity Eureka 0 Comment
  UC11947  Tolmiea diplomenziesii W. C. Blasdale Jun 1899 5887 Humboldt Weitchpec North Coast Ranges, Klamath River (on the Klamath River, opposite the mouth of the Trinity) Comment
  HSC73841  Tonella tenella Gail Newton 1980-6-7 134 Humboldt Near Brush Mtn. 1128 Comment
  UC27661  Tonella tenella Mrs. M. H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  HSC26806  Tonella tenella Thomas W. Nelson 1971-4-24 400 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  HSC21588  Torilis arvensis P. W. Shields May 1955 Humboldt HSC campus Comment
  CAS-BOT-BC169176  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt Larrabee Creek, 5 miles N. of Blocksburg 365 Comment
  HSC62837  Toxicodendron diversilobum M. Dean Griswold 1979-5-29 85 Humboldt In front of Masonic lodge on Bayside Rd. Comment
  HSC86488  Tracyina rostrata Tom Duebendorfer 1988-6-14 881 Humboldt About 2 mi. E of confluence of Kekawaka Creek and the Eel River, N of Lauffer Ranch. 457 Comment
Read comments
May 18 2010
  SEINET10953093 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 Tracy 4735 Humboldt Alder Point, on warm grassy slopes. 305 Comment
  HSC98856  Triantha occidentalis subsp. occidentalis Cara Witte 2008-7-30 973 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  HSC27392  Trichostema lanceolatum Thomas W. Nelson 1970-9-3 210 Humboldt Mad River. Comment
  RSA440753  Trichostema laxum E. S. Spalding 1924-7-13 s.n. Humboldt Lanis Flats, bank of Eel River. Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  BLMAR260  Trifolium Jennifer Anthony-Wheeler 1998-4-22 260 Humboldt King range, strawberry rock grazing allotment 280 Comment
  CDA4307  Trifolium angustifolium J. R. Keck Jr., W. Simas 1973-5-3 Humboldt Bear River Road, between Cook & Morrison. 0 Comment
  UC1223375  Trifolium arvense Joseph P. Tracy 1941-7-26 16970 Humboldt near 9th (G Street); Eureka Comment
  UC16424  Trifolium barbigerum Harley P. Chandler May, 1901 1102 Humboldt Humboldt Bay; North Coast Ranges Comment
  UC165525  Trifolium barbigerum Harley P. Chandler May, 1901 1129 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197180  Trifolium bifidum var. decipiens J. P. Tracy 1899-5-26 47 Humboldt immediate vicinity Eureka 0 Comment
  UC1197059  Trifolium bifidum var. decipiens Joseph P. Tracy 1925-8-9 7226 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC1197183  Trifolium bifidum var. decipiens J. P. Tracy 1913-6-13 4105 Humboldt oppostie Buck Mtn (Dinsmore's Ranch); North Coast Ranges, Van Duzen River Valley 762 Comment
  UC1223502  Trifolium bifidum var. decipiens Joseph P. Tracy 1939-4-29 16256 Humboldt 2 mi below Orleans (nw side); Klamath River 121 Comment
  HSC45303  Trifolium campestre Ed Cope 1978-5-30 Humboldt Along old Hwy. 101, S of Trinidad Comment
  UC1223482  Trifolium cyathiferum Joseph P. Tracy 1935-5-25 13891 Humboldt along north Dobbyn Creek 152 Comment
  UC162801  Trifolium cyathiferum Joseph P. Tracy 1903-5-23 1902 Humboldt along Eel River (Alder Point); Northern Coast Ranges 91 Comment
  HSC15111  Trifolium depauperatum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC165572  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning Apr 1 1900-May 1 1900 Humboldt Hupa Comment
  HSC15115  Trifolium dubium Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  UC631194  Trifolium dubium Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  HSC14986  Trifolium dubium J. L. Baker 1965-4-2 56 Humboldt Humboldt Meridain, 4 mi. N of Arcata on North Bank Rd. Comment
  UC33571  Trifolium eriocephalum var. eriocephalum Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  SEINET6934968  Trifolium fucatum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1223456  Trifolium fucatum Joseph P. Tracy 1950-6-8 18748 Humboldt 1 mi e Cape Mendocino; Cape Ridge 152 Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  JEPS109912  Trifolium howellii Dean W. Taylor 2006-8-3 19574 Humboldt Snow Camp Lake; un-named first-order tributary to Redwood Creek not shown on USGS map 1 mile NE of the lake. Comment
  HSC59064  Trifolium incarnatum Thomas Wood 1979-4-6 95 Humboldt On Hwy. side W of 2nd bridge overpass from Eureka, on Gunther Island Comment
  HSC15234  Trifolium longipes subsp. oreganum D. E. Anderson 1965-6-1 3770 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  UC495660  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Ranges, Trinidad 15 Comment
  RSA32659  Trifolium microcephalum Doris K. Kildale 1925-6-28 808 Humboldt Kneeland Prairie. Comment
  UC494186  Trifolium microcephalum H. E. and S. T. Parks 1930-5-25 883 Humboldt Laribee Valley Comment
  UC16639  Trifolium microcephalum J. Burtt Davy 1899-4-15 5528 Humboldt Eel River bottom North Coast Ranges, Scotia Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  UC1197487  Trifolium oliganthum Joseph P. Tracy 1932-5-1 9870 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  RSA168851  Trifolium olivaceum var. olivaceum Joseph P. Tracy 1950-7-1 18945 Humboldt Near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. 1220 Comment
  UC1223329  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt near Blue Lake (along Mad River) 15 Comment
  UCR122354  Trifolium pratense George K. Helmkamp, E. A. Helmkamp 2001-7-8 6963 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  HSC103979  Trifolium subterraneum Kyle Brown 2015-4-25 42 Humboldt Arcata, trail along the Mad River 8 Comment
  HSC34617  Trifolium subterraneum David Ferranti 1974-5-6 Humboldt Garden weed at 43601/2 Union St. Eureka Comment
  HSC49247  Trifolium subterraneum R. Sutherland 1978-5-19 2 .19578 Humboldt Mckee Flat 296 Comment
  UCSC000416  Trifolium variegatum H. S. Yates 1936-6-18 5733 Humboldt 2 miles N. of Big Lagoon - Rocky Pt. 30 Comment
  UC201371  Trifolium variegatum var. melananthum Joseph P. Tracy 1918-7-3 4990 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC495680  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-22 10123 Humboldt betw Miranda and Redway North Coast Ranges (South Fork of Eel River) 91 Comment
  HSC49043  Trifolium willdenovii Patricia Shesgreen 1978-5-6 71 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  JEPS4152  Trifolium willdenovii Joseph P. Tracy 1932-5-10 9944 Humboldt between Petrolia and the ocean Northern Coast Ranges 152 Comment
  UCD109888  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  HSC15194  Trifolium wormskioldii Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  UC1197036  Trifolium wormskioldii Joseph P. Tracy 1917-7-8 4827 Humboldt near Newell's Camp (Old Kneeland Prairie Rd on beaten path); Northern Coast Ranges 457 Comment
  UC573542  Trifolium wormskioldii H. S. Yates 1936-6-18 5723 Humboldt 2 mi s mouth of Littler River; Eureka quad 3 Comment
  CAS-BOT-BC451804  Triglochin maritima Joseph P. Tracy 1934-7-20 13466 Humboldt Big Lagoon 3 Comment
  UCD138179  Triglochin maritima Malcolm A. Nobs; S. Galen Smith 1949-8-3 1169 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC69637  Triglochin maritima R. Kalal 1980-5-8 21 Humboldt Foster Rd. near Arcata 6 Comment
  UC1100175  Triglochin maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1169 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  HSC15713  Trillium albidum Elrid H. Spinas 1948-6-16 18 Humboldt Horse Mtn. Comment
  HSC98737  Trillium albidum Cara Witte 2007-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  CAS-BOT-BC520054  Trillium albidum Doris K. Kildale 1930-5-11 9542 Humboldt The Bald Hills Comment
  UC1222530  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt head of S. Yager Comment
  CAS-BOT-BC389696  Trillium ovatum Mary K. Wicksten 1972-3-8 39 Humboldt Arcata Comment
  HSC15699  Trillium ovatum D. E. Anderson 1962-2-23 1923 Humboldt Grove E of HSC campus Comment
  HSC71798  Trillium ovatum Gail Newton 1980-6-16 169 Humboldt Near Monks Camp. 1097 Comment
  RSA378216  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC1134682  Trillium ovatum R. Stahelin 1933-5-18 LH 12 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  HSC22042  Trillium ovatum H. S. Logsdon 1964-4-11 15 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC89454  Trillium ovatum M. Roantree 1985-4-28 25 Humboldt NW side of Trinidad Head along trail Comment
  UC709437  Trillium ovatum Joseph P. Tracy 1941-4-8 16855 Humboldt at head of Willow Creek; Willow Creek Canyon, Willow Creek 762 Comment
  HSC100892  Trillium sessile var. californicum Carl C. Marshall Apr 1886 122 Humboldt Thickets near bay. Comment
  HSC20852  Triphysaria eriantha subsp. eriantha S. J. Hawks 1965-5-14 56 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  JEPS26218  Triphysaria eriantha subsp. rosea H. E. Parks and Joseph P. Tracy 1927-4-24 7946 Humboldt Bucksport 6 Comment
  CAS-BOT-BC199624  Trisetum canescens Joseph P. Tracy 1935-7-25 14235 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  HSC13424  Trisetum cernuum E. W. Styskel 1964-5-8 84 Humboldt 2 mi. W of Rio Dell off Blue Slide Rd. Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  UCD93911  Trisetum cernuum Joseph P. Tracy 1950-7-2 18962 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. At Fern Spring. 1280 Comment
  HSC24373  Triteleia bridgesii J. O. Sawyer 1970-6-24 2238 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC44872  Triteleia hyacinthina J. P. Smith, J. O. Sawyer 1973-5-12 6664 Humboldt 1.0 mi. from Redwood Creek on Hoopa Rd. Comment
  UC666915  Triteleia hyacinthina Joseph P. Tracy 1930-7-6 8843 Humboldt in moist places Kneeland Prairie Comment
  RSA36387  Triteleia laxa E. K. Balls, Lee W. Lenz 1956-6-12 21663 Humboldt 23 miles southwest of Willow Creek along U.S. Highway 299 toward Arcata 640 Comment
  HSC100450  Troximon heterophyllum Carl C. Marshall May 1887 494 Humboldt Kneeland Prairie. Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  RSA47119  Umbellularia californica Doris K. Kildale 1926-8-15 2515 Humboldt Willow Creek Flat 152 Comment
  RSA701676  Umbellularia californica J. R. Bruff 1930-08 s.n. Humboldt Roadside North of Trinidad California Comment
  SEINET202011  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka. 30 Comment
  UCD111618  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka. 30 Comment
  HSC55012  Vaccinium membranaceum G. L. Clifton 1979-7-31 11394 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC199305  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge Comment
  RSA46803  Vaccinium ovatum Doris K. Kildale 1927-5-15 3189 Humboldt Big Lagoon Flat. Comment
  UC154182  Vaccinium ovatum Harley P. Chandler Jun 1901 1397 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley 152 Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC32645  Vaccinium parvifolium J. Burtt Davy 1899-6-18 5608 Humboldt Bald Mt., near Korbel; North Coast Ranges Comment
  UC562450  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  SEINET12318510  Vahlodea atropurpurea K. S. Erdman 1970-1 4819 Humboldt Redwood National Park, summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glen Comment
  HSC97947  Valeriana californica Cara Witte 2007-6-26 359 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/4 mile east from intersection with National Forest 1. 1457 Comment
  JEPS9386  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia (Scotia Bluff); Northern Coast Ranges, Eel River 60 Comment
  UC1239584  Valeriana sitchensis subsp. scouleri Mrs. R. D. Douglass 1919-5-8 Humboldt near Ferndale; Nothern Coast Region Comment
  UC602513  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  HSC99004  Vancouveria hexandra Cara Witte 2008-8-16 1026 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  CAS-BOT-BC76093  Vancouveria planipetala M. S. Jussel 1931-5-2 113 Humboldt Garberville. Comment
  HSC73140  Vancouveria planipetala M. A. Baker 1980-5-18 1294 Humboldt Near Black Mtn. 1006 Comment
  UC1225852  Veratrum insolitum Joseph P. Tracy 1948-8-15 18120 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC97638  Veronica americana Cara Witte 2007-5-31 160 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  JEPS16845  Veronica americana W. L. Jepson 1932-7-30 16452 Humboldt Bull Creek 121 Comment
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC176952  Veronica arvensis Joseph P. Tracy 1913-6-17 4154 Humboldt on nw slope of Buck Mountain (Burr Valley, at Sheep Camp); Northern Coast Ranges, , Burr Valley 1066 Comment
  UC1192005  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt at the southern outskirts of Eureka Comment
  UC582548  Veronica scutellata Joseph P. Tracy 1927-7-17 8275 Humboldt on lower w foothills of Chaparral Mountain (Three Cabins); North Coast Ranges, , Three Cabins 457 Comment
  HSC21220  Veronica serpyllifolia William J. Ferlatte 1963-5-8 38 Humboldt N end of Redwood Bowl, HSC campus, Arcata Comment
  HSC56097  Veronica serpyllifolia subsp. humifusa G. L. Clifton 1979-7-31 11807 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC99632  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SBBG3866  Vicia americana subsp. americana H. and M. Dearing 1939-5-24 3421 Humboldt Mattole Rd to Dyerville Comment
  HSC90236  Vicia americana var. americana L. Watson, J. Meninga Apr 1991 23 Humboldt Near Manilla, Mad River Slough and Dunes. N end of parking lot, W side of trail. Comment
  HSC15268  Vicia gigantea S. J. Hawks 1965-5-18 75 Humboldt Clam Beach. Comment
  HSC89513  Vicia gigantea M. Roantree 1985-4-25 7 Humboldt E side of Trinidad Head Comment
  JEPS66176  Vicia hassei Lincoln Constance 1934-6-6 826 Humboldt Dyerville to Horse Prairie (fire trail); South Fork Eel River, Bull Creek Region Comment
  UC17027  Vicia sativa subsp. sativa Joseph Burtt Davy and Walter C. Blasdale 1899-5 5548 Humboldt near Scotia Comment
  UC1198443  Viola adunca Joseph P. Tracy 1927-4-24 7943 Humboldt Table Bluff; Northern Coast Ranges 91 Comment
  SEINET11980785  Viola adunca f. adunca Unknown 1936-1 13040 Humboldt Fields Landing Comment
  RSA0006435  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., on forest road in open spots in Fir forest, near Miller Spring and beyond. 1524 Comment
  RSA0006436  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., at Miller Spring. 1524 Comment
  HSC31194  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC302051  Viola cuneata Joseph P. Tracy 1926-6-20 7615 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1222521  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt at summit near Clear Lake; Grouse Mountain 1524 Comment
  CHSC12141  Viola glabella M. K. Morrison 1973-4-23 17 Humboldt Found 1/4 mi w of the Humboldt Ecology Center, Weott. 121 Comment
  HSC74650  Viola glabella M. A. Baker 1980-5-17 1242 Humboldt Near Le Perron Peak 1066 Comment
  HSC91931  Viola glabella E. Mackey 1986-9-2 Humboldt Patrick's Point State Park Comment
  JEPS80007  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC41234  Viola hallii Brad Klipfel 1974-5-8 324 Humboldt Horse Mtn.; E of the towers 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
  UC275326  Viola palustris Joseph P. Tracy 1923-5-31 624 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  SEINET197041 Image available Viola sempervirens H. E. Parks, S. T. Parks 24268 Humboldt Spruce Cove , Trinidad 60 Comment
  SEINET200803 Image available Viola sempervirens Joseph P. Tracy 1938-4-5 15706 Humboldt Willow Creek Canyon along Trinity Hwy. 460 Comment
  HSC60141  Vitis californica M. A. Baker 1977-6-6 368 Humboldt Hoopa Comment
  HSC9836  Vulpia bromoides J. A. Waller 1965-5-16 47 Humboldt Open field near Big Lagoon. Comment
  UC589843  Vulpia bromoides H. S. Yates 1936-6-18 5732 Humboldt Big Lagoon; Rocky Pt. Quad. 1 Comment
  SEINET200354  Vulpia microstachys var. pauciflora J. P. Tracy 1919-5-31 5161 Humboldt W side Trinity River; near Willow Creek 153 Comment
  HSC39399  Vulpia myuros D. E. Anderson, J. P. Smith 1971-6-28 - 1253 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC9924  Vulpia myuros Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  CAS-BOT-BC184731  Vulpia myuros subsp. megalura Joseph P. Tracy 1933-6-13 12598 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC38479  Vulpia myuros var. hirsuta Harley P. Chandler May 1901 1120 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  CHSC68557  Whipplea modesta Vernon H. Oswald 1997-4-29 8356 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. On the edge of the trail. 0 Comment
  HSC41290  Whipplea modesta Brad Klipfel 1974-7-27 488 Humboldt Horse Mtn. Comment
  HSC73158  Whipplea modesta M. A. Baker 1980-5-18 1287 Humboldt Near Black Mtn. 1006 Comment
  UC492216  Whipplea modesta Joseph P. Tracy 1927-8-28 8360 Humboldt Boynton Prairie Northern Coast Ranges 609 Comment
  SEINET12217528  Whipplea modesta F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -299 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC74461  Woodwardia fimbriata M. A. Baker 1980-5-18 1357 Humboldt Near Black Mtn. 792 Comment
  HSC44509  Wyethia angustifolia Brad Klipfel 1973-7-1 118 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC93595  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  UC419036  Wyethia longicaulis H. E. Parks May 1930 740 Humboldt Laribee Valley Comment
  UC582640  Wyethia longicaulis Joseph P. Tracy 1932-6-26 10253 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC326978  Wyethia longicaulis Volney Rattan 1883-6-1 s.n. Humboldt North east of Mad River Comment
  UC1223296  Xanthium spinosum Joseph P. Tracy 1943-11-28 17452 Humboldt river bar at mouth Van Duzen River (near Alton); Eel River 91 Comment
  SD104877  Zeltnera muehlenbergii Darley F. Howe 1979-6-25 Humboldt Highway 96, 12.3 miles north of Willow Creek. Comment
  HSC74387  Zigadenus micranthus M. A. Baker 1980-6-28 2505 Humboldt Near Mad River Buttes 1445 Comment
  HSC96224  Zigadenus micranthus Eric Schori, Kazuyuki Ishimaru 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  CAS-BOT-BC532737  Zigadenus micranthus Doris K. Kildale 1926-3-23 1606 Humboldt Alton Hill Comment
  HSC15746  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mtn. lookout 1216 Comment
  UC159987  Zostera marina R. W. Skinner Oct 1910 Humboldt Eureka Comment



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